• (...)
  • 7.Qb3 ed4
  • 7.b5 Re8
  • 7.Be2 c6
  • 7.Be2 Nc6

• 7.b5 ed4
  • 8.Bd4 a6
  • 8.Bd4 c5
  • 8.Bd4 Nbd7

• 7.Nc3 ed4

• 7.Be2 a5
  • 8.a3 ab4 9.ab4 Ra1
  • 8.b5 b6
  • 8.b5 ed4

• 7.Be2 ed4
  • 8.ed4 b6
  • 8.ed4 c5
  • 8.ed4 Nc6
  • 8.ed4 d5!
    • 9.0-0 dc4
  • 8.ed4 Ne4
  • 8.ed4 Re8
  • 8.ed4 Bf5
  • 8.ed4 Bg4
  • 8.ed4 Nh5
  • 8.Qd4 c5
  • 8.Qd4 Nc6
    • 9.Qc3 Qe7
    • 9.Qc3 Re8
      • 10.0-0 Qe7
  • 8.Bd4 c5
  • 8.Nd4 a5
  • 8.Nd4 Na6
  • 8.Nd4 c5
    • 9.Nb5 cb4
    • 9.Nb5 Nc6
      • 10.0-0 Nb4
      • 10.a3 cb4
      • 10.bc5 dc5
        • 11.0-0 Be6
  • 8.Nd4 Nc6
  • 8.Nd4 d5
  • 8.Nd4 Bd7
  • 8.Nd4 Nbd7
  • 8.Nd4 Ne4
  • 8.Nd4 Re8

• 7.Be2 Nbd7
  • 8.0-0 a5
  • 8.0-0 b6
  • 8.0-0 c6
  • 8.0-0 ed4
    • 9.Nd4 c5
    • 9.Nd4 Re8
      • 10.Nc3 Ne5
  • 8.0-0 e4
    • 9.Nfd2 c6
      • 10.Nc3 d5
    • 9.Nfd2 Re8
      • 10.Nc3 Nf8
        • 11.a4 Bf5
          • 12.b5 h5
        • 11.a4 h5
          • 12.a5 N8h7
          • 12.b5 h4+=
        • 11.Qb3 h5
          • 12.Rae1 N8h7
            • 13.f3 ef3
        • 11.b5 h5
        • 11.Qc2 Bf5
          • 12.Rfc1 h5
          • 12.d5 h5
            • 13.Nb3 N8h7
        • 11.d5 h5
        • 11.Re1 h5
          • 12.f3 ef3
  • 8.0-0 Qe7
  • 8.0-0 Re8
    • 9.de5 Ng4
      • 10.Nc3 Nge5
        • 11.Nd4 Nf6
  • 8.Qb3 ed4
  • 8.Qb3 Re8
    • 9.Nc3 ed4
    • 9.Nc3 e4
      • 10.Nd2 Nf8
  • 8.b5 a6
  • 8.b5 ed4
  • 8.b5 e4
    • 9.Nfd2 Re8
  • 8.b5 Re8
    • 9.Nc3 ed4
  • 8.Qc2 e4
  • 8.Qc2 Re8
  • 8.Nc3 a5
  • 8.Nc3 b6
    • 9.a4 a5
  • 8.Nc3 c6
    • 9.0-0 e4
      • 10.Nd2 Re8
        • 11.a4 Nf8
          • 12.b5 h5
            • 13.a5+/- a6
    • 9.0-0 Re8
  • 8.Nc3 ed4
  • 8.Nc3 e4
    • 9.Nd2 Re8
      • 10.Qc2 Qe7
  • 8.Nc3 Qe7
  • 8.Nc3 Re8
    • 9.0-0 ed4
    • 9.0-0 e4
    • 9.a4 e4
    • 9.de5 de5
  • 8.Nc3 Ne8
  • 8.d5 Ne4
  • 8.de5 de5
  • 8.de5 Ne5
  • 8.de5 Ng4
    • 9.0-0 Nde5
      • 10.Ne5 Ne5
    • 9.0-0 Nge5
      • 10.Ne5 Ne5
    • 9.Nc3 Nde5
    • 9.Nc3 Nge5

• 7.Be2 e4
  • 8.Nfd2 a5
  • 8.Nfd2 c5
  • 8.Nfd2 c6
    • 9.Nc3 d5
    • 9.Nc3 Re8
  • 8.Nfd2 Nc6
  • 8.Nfd2 d5
  • 8.Nfd2 Qe7
  • 8.Nfd2 Re8
    • 9.Nc3 h5
  • 8.Nfd2 h5
    • 9.Nc3 Re8
      • 10.h3 h4

• 7.Be2 Re8
  • 8.0-0 ed4
  • 8.0-0 e4
  • 8.de5 Ng4

• 7.de5 Nfd7
  • 8.Qb3 de5
  • 8.Qb3 Ne5
    • 9.Ne5 de5
  • 8.Nc3 de5
  • 8.Nc3 Ne5
  • 8.Be2 Nc6
  • 8.Be2 de5
  • 8.Be2 Ne5

• 7.de5 de5
  • 8.Qd8 Rd8

• 7.de5 Ng4
  • 8.Qb3 Ne5
    • 9.Ne5 de5
  • 8.Qc2 Ne5
  • 8.Nc3 Nc6
  • 8.Nc3 Ne5
    • 9.Ne5 Be5
      • 10.Be2 a5
  • 8.Qd2 Ne5
  • 8.Nbd2 Nc6
  • 8.Be2 Nc6
  • 8.Be2 Ne5

7.b5 a6 8.a4 Nbd7 9.Nc3 Re8 10.Be2 ed4 11.Nd4 Nc5 12.0-0 h5 13.h3 Nfe4 14.Ne4 Ne4 15.Qc2 Qe7 16.Bf3 Bd7 17.Rfd1 Rab8 18.Rac1 h4 19.Be4 Qe4 20.Nf3 Qc2 21.Rc2 Bf5 22.Rcd2 Re4 23.Bg7 Kg7 24.Rd4 Rd4 25.Rd4 (25.ed4?! Bc2 26.Ra1 Ra8=) 25...b6 26.e4 (worse is 26.Nh4 Bc2=; worse is 26.ba6 Ra8=) 26...Be6 27.Nh4 (27.ba6 Ra8 28.e5 A) 28...Ra6?! 29.ed6 (worse is 29.Rh4 de5 30.c5 f6–/+) 29...cd6 30.Rd6=; B) 28...de5 29.Ne5 Ra6–/+) 27...Ra8 28.Nf3 ab5 29.ab5 Kf6 30.Kf1 Ra4 ½–½. Miltner,Arndt (2370) – Mandel,Andreas (2390), Oberliga Baden, 2007. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5)

7.b5 e4 8.Nfd2 Re8 9.Nc3 h5 10.Be2 Bf5 ½–½. Kaenel,Hansjuerg (2350) – Hug,Werner (2435), SUI–chT Switzerland, 2007. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.c4 e5)

7.Nc3 Nc6 8.b5 ed4! 9.Nd4 Nd4 10.Qd4 Ng4 11.Qd2 Qh4 12.Nd5 Bb2 13.Qb2 c6 14.g3 Qd8 15.Nc3 Qf6 -+. Levin – Veresov, 1958.

7.Nbd2 e4 8.Ng1=+.

7.Nbd2 Re8 8.Be2 (8.de5 Ng4=) 8...e4 9.Ng1 a5 10.a3 (10.b5 a4=) 10...h5 (10...ab4 11.ab4 Ra1 12.Qa1=+) 11.Qb1 (11.b5 Bf5=) 11...Bf5 (11...ab4 12.ab4 Ra1 13.Ba1=) 12.Bd1 (12.Bc3 ab4 13.ab4 Ra1 14.Qa1 c6=) 12...ab4 13.ab4 Ra1 (13...Nc6 14.Ra8 Qa8 15.Bc3=) 14.Qa1 Na6 (14...d5 15.Qa8=) 15.Bc3 c6 16.Ne2 Qe7 (16...d5 17.b5 cb5 18.cb5=) 17.b5 (17.Qb2 d5=) 17...cb5 18.cb5 Nc7 19.Qb2 (19.Ng3 Bd7 20.Bc2 Nb5–/+) 19...Rc8 (19...Qd7 20.b6 Ncd5 21.Ng3=) 20.0-0 Bd7 Exerts pressure on the isolated pawn (20...Ncd5 21.h3=+) 21.b6= Ncd5 22.Ba5 Bh6 (22...Ra8 23.Nc4=+) 23.h3 (23.Bb3 h4=) 23...h4 (23...Ra8 24.Nc4=) 24.Nc3 (24.Bb3 Be6=) 24...Nc3 25.Bc3 Nd5 26.Nb1 (26.Ba5 Ra8 27.Nc4 Ne3 28.fe3 Be6+=) 26...Rc6 (26...Qg5 27.Kh2 Rc6–/+ (27...Nc3?! 28.Nc3 d5 29.Qa3=)) 27.Ba5= Qg5 28.Kh1? (28.Ba4 Bh3 29.f4 ef3 30.Bc6 Bg2 31.Re1-+) 28...Nf4-+ 29.ef4 Qa5 30.Be2 (30.Qd2 Qd2 31.Nd2 Rb6 (31...Bf4?! 32.Ne4 d5 33.Nc5–/+) 32.Ne4 Kg7-+) 30...Qb6 (30...Bf4 31.Qb5 Qb6 32.d5 Qb5 33.Bb5-+) 31.Qb6 Rb6 32.Nc3 Rb2 33.Re1 (33.Ne4 Re2 34.Nf6 Kg7 35.Nd7 Bf4-+) 33...Bf4 (33...f5 34.g3-+) 34.Ne4 Kg7 35.Bf3 (35.Bc4 b5 36.Bd5 f5-+) 35...Bc6 36.d5 (36.Rf1 Rb3 37.d5 Bd5-+) 36...Bd5 37.Nd6 (37.Rd1 Bb3 38.Re1 b5-+) 37...Bf3 (37...Bd6?! 38.Bd5 b5 39.Rd1-+) 38.Ne8 Kf8 39.gf3 Rb6 (39...Rf2!? 40.Nf6 Rf3 41.Kg2 Rg3 42.Kf2 Rh3 43.Rb1-+) 40.Re4 g5 41.Kg2 (41.Rf4 gf4 (41...Ke8?! 42.Re4 Kd7 43.f4–/+) 42.Nc7 Rb1 43.Kh2 b5-+) 41...Rc6 42.Re1 b5 (42...b6 43.Kf1-+) 43.Rb1 (43.Re4 b4!-+) 43...Ke8 44.Rb5 Ke7 45.Kg1 (45.Rb2 Be5 46.Re2 Kf6-+) 45...Kf6 46.Kg2 Rc2 47.Kg1 (47.Rb6 Kf5 48.Rb5 Kg6-+) 47...Kg6 (47...Be5 48.Rb6 Kf5 49.Rb5-+) 48.Rb6 (48.Kf1 f5-+) 48...f6 (48...Kf5 49.Rb7 f6 50.Rb5 Be5 51.Rd5-+) 49.Ra6 (49.Kf1 Be5 50.Rb4 Rc1 51.Kg2 Rd1-+) 49...Be5 50.Ra4 Bd6 51.f4 Bf4 52.Rd4 (52.Kf1 Kf5-+) 52...Bc7 53.Rd3 (53.Rb4 Bd6 54.Rb3 Bc5-+) 53...Bb6 54.Rf3 Rf2! (54...Rf2 55.Rf2 f5-+) 0–1. Aubry,Yannis (2010) – Georgescu,Tiberiu_Marian (2400), St–Lo FRA, Open, 2010. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.c4 e5)

7.Nfd2 ed4!? 8.Bd4 Nc6=+.

7.Nfd2 e4 8.Nc3 Re8 9.Qc2 Bf5 10.h3 h5 11.Be2 Nbd7 12.g4 hg4 13.hg4 Ng4 14.Nde4 Ndf6 (15.Nf6 Nf6+=). Grund,Karl – Konikowski,Jerzy, corr.

7.Bd3 Nbd7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 Nbd7 7.Bd3 e5).

7.Be2 c5 8.de5 de5 9.Qd8 Rd8 10.0-0 (better is 10.Ne5!? cb4 11.Nd2=) 10...e4–/+ 11.Nfd2 cb4 12.h3 Nc6 13.f3 Nd7 14.Bg7 Kg7 (14...ef3 15.Nf3 Kg7 16.Rd1–/+) 15.fe4 (better is 15.Ne4!? f5 16.Ned2+=) 15...Nde5–/+ 16.Nb3 Be6 17.N1d2 Rd7 18.a3 (18.Rac1 Rad8 19.Nf3 Nf3 20.Rf3 Ne5–/+) 18...Rad8 19.Nf3 Nf3 20.Rf3 ba3 21.Ra3 Ne5 22.Rf1 b6 23.Nd4 Bc4 24.Bc4 Nc4 25.Rc3 Ne3! 26.Ne6 fe6 27.Re3 Rd1 28.Ra3 Rf1 29.Kf1 a5 30.Ke2 Kf6 31.Rb3 Rb8 32.Rb5 a4 33.Kd3 h5 34.h4 a3 35.Rb1 b5 36.Kc3 Ke5 37.Kb3 Ra8 38.Kb4 a2 39.Ra1 Ra4 40.Kb5 Ra8 41.Kb4 Ke4 42.Kb3 Kf4 43.Kb2 e5 (43...e5 44.Rf1 Kg4-+) 0–1. Rush,Bradley – Schloegl,Dietrich (1695), 65. LSS No Engine Cup Preliminary, 2012.

7.Be2 Nfd7 8.Nc3 (8.0-0 Re8=) 8...Nc6 9.a3 (better 9.Nd5=) 9...f5 (9...ed4 10.ed4 Nb6 11.d5=) 10.b5 (10.d5 Ncb8+-) 10...Ne7 (10...ed4!? 11.ed4 Na5=) 11.Qb3 (11.0-0 c5+=) 11...ed4 12.ed4 Nf6 (12...c5!? 13.Rd1 cd4 14.Nd4 Nc5=) 13.0-0+- h6 (13...f4 14.Rfe1+-) 14.c5 (14.Rae1 f4+-) 14...Kh7 (14...d5 15.Bd3+-) 15.Rfe1 Ne4 (15...d5 16.Bc1+-) 16.Bd3 (16.Bc4 Nc3 17.Bc3 f4+-) 16...d5 17.Ne5 (better 17.a4!?+-) 17...Be5= 18.de5 (worse 18.Be4 Bh2 (worse 18...Bd4 19.Bf3 c6 20.Ne2 Bb2 21.Qb2+=) 19.Kh2 fe4–/+ (19...de4?! 20.a4=+)) 18...Nc5 19.Qc2 Nd3 (19...f4 20.Rad1 Nd3 21.Qd3=) 20.Qd3 Be6 (20...a6 21.e6 d4 22.Rac1+=) 21.Rad1 (21.Ne2 f4+=) 21...c5 (21...a6 22.a4=+) 22.bc6+= bc6 23.Na4 f4 24.Nc5 Qc8 25.a4 (25.Bc3 Rb8+=) 25...Nf5 (25...f3 26.gf3 Nf5 27.f4=) 26.Ba3 (26.Bc1 Nh4+=) 26...Rf7 (26...Nh4 27.Ne6 Qe6 28.Bf8=) 27.Rb1 Ng7 28.Rb3 (28.Qd2 Bf5 29.Rb4 f3+=) 28...Bf5 (28...Rb8 29.Rb8 Qb8 30.f3=) 29.Qc3+= Ne6 30.Rc1 (30.Rb2 Rb8=) 30...Nd8 (30...Rb8 31.Rb8 Qb8 32.Ne6 Be6 33.h4=) 31.f3 (31.Qb4 g5+=) 31...Be6 (31...Rb8 32.Kf2=) 32.Rb2+= Rf5 (32...Bf5 33.Qd2+-) 33.a5 (33.Bb4 Bf7+-) 33...Rf7 (33...Rb8 34.Ne6 Rb2 35.Nd8+- (35.Qb2?! Ne6 36.Bd6 Kg7=)) 34.a6+- Bf5 35.Rb3 (35.Rb4!?+-) 35...Rb8= 36.Bb2 (36.Rb4 g5=) 36...Rb3 (36...Ne6 37.Nb7 Rc7 38.Qd2=) 37.Qb3 Ne6 38.Qa4 (38.Ne6 Be6 39.Qa3 Kg7+=) 38...Nc5 (38...Qb8 39.Qa1 Nc5 40.Rc5=) 39.Rc5 Qb8 (39...Bd7 40.Bd4=) 40.Qa3 (40.Qd4 Bd7+=) 40...Qb6= 41.Kh1 (41.Bd4 Bc8=) 41...Be6 (41...Bc8 42.h4=) 42.h3 (42.Bd4 Bc8=) 42...Rd7 (42...Rc7 43.Bd4+=) 43.Bd4+= Kg8? (better 43...Rc7!?+=) 44.Kh2+- Qd8 (44...g5 45.Rd5! Qc7 46.Rd6+-) 45.Rc6 Kf7? (45...Qe8+-) 46.Qc1 Qg5 (46...Qe7+-) 47.Re6! Ke6 48.Qc6 Ke7 49.Bc5 Kd8 50.Qa8 Kc7 51.Qb7 (51.Qb7 Kd8 52.Qb8) 1–0. Simakova,Elena (1860) – Priyanka,K (2205), World Youth Girl U16, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.e3 e5 7.Be2 Nfd7)

7.h3 ed4 8.Nd4 c5 9.Nb5 cb4 (9...Na6 10.a3=) 10.Qd6 (10.Nd6 Qc7 11.Nb5 Qa5=) 10...Nc6=+ 11.Nd2 Be6 (11...Ne4 12.Ne4 Bb2 13.Qd8 Rd8 14.Rd1=+) 12.Be2 Ne4 13.Qd8 Rfd8 (13...Rad8? 14.Bg7 (< 14.Ne4 Bb2 15.Rb1 Bg7=) 14...Nd2 15.Bf8 Kf8 16.0-0-0+-) 14.Bg7 (14.Ne4 Bb2 15.Rb1 Be5=+) 14...Rd2–/+ (< 14...Nd2 15.Bf6 Rd7 16.Rd1+=) 15.Nc7 Re2! 16.Ke2 Bc4 17.Kf3 Nd2 18.Kf4 Rc8 19.Bf6 Rc7 20.Rhd1 Rd7 21.Rac1 (21.e4 b3 22.ab3 Bb3-+) 21...Rd6 (21...Ba2?! 22.Rc2 Be6 23.Rcd2 Rd2 24.Rd2–/+) 22.Ba1 (22.Bb2 Ba2 23.Rc2 g5 24.Kg4 f5 25.Kf5 Be6 26.Kg5 Ne4 27.Kf4 Rd1 28.Ke4 b3-+) 22...Ba2 23.Rc2 (23.Bd4 g5 24.Kg5 Rd5 25.Kf4 Nb3-+ (25...Nd4?! 26.ed4 Nc4 27.Ra1-+)) 23...g5! 24.Kg4 (24.Kg5 Ne4) 24…f5! (25.Kg5 Ne4 26.Kf5 Rd1 27.Ra2 b3-+) 0–1. Veer,W – Dopper,Johan, corr ICCF tt, 1993.

8.Nd4 Nc6 9.Nc6 bc6 10.Be2 a5 11.a3 Be6 12.Nd2 Rb8 13.0-0 ab4 14.ab4 Qe7 15.Bc3 Rb6 16.Qb2 Rfb8 17.Ra4 Ne8 18.Bg7 Ng7 19.Qc3 Ne8 20.Rfa1 Qf6 21.Qa3 Rb4 22.Rb4 Rb4 23.Qa8 Rb8 24.Qb8 Qa1 25.Nf1 Kf8 26.c5 dc5 27.h3 Qe1 28.Qb2 Ke7 29.Qe5 0–1. Rovid – Szalanczy, 1981.

8.Nd4 Ne4 9.Bd3= Nf2 10.Kf2 Qf6 11.Ke1 Qh4?? (better is 11...c5 12.Rf1 Qe5+=) 12.g3+/- Qh3? (12...Qh6 13.Kf2 Re8 14.e4+/-) 13.Nd2 (13.Kf2 Bd4 14.ed4 Bf5+-) 13...Qg2? 14.Be4 Qh3 15.Ne2 c6 16.Bg7 Kg7 17.Nf4 Qg4 18.Bf3 Qf5 19.Qc3 Kg8 20.Rf1 Qd7 21.Ne4 f6 22.Nf6 Rf6 23.Qf6 d5 24.cd5 cd5 25.Bd5 Qf7 26.Qf7 (26.Qf7 Kh8 27.Qf6#) 1–0. ferminkatcho (1725) – enkost, kurnik, 2012.

8.Be2 ed4 9.Nd4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Ne4 13.0-0 c5 14.bc6 bc6 15.Nc3 Nc3 16.Bc3 d5 17.cd5 Qd5 18.Qa1 c5 19.Nb5 Bc3 20.Nc3 Qe5 21.Bf3 Be6 22.Ne4 Qa1 23.Ra1 Nd7 24.Rc1 c4 25.Ng5 Rc8 26.Kf1 Nb6 27.Ne6 fe6 28.Ke2 Kf7 29.Rb1 Rb8 30.Kd2 Ke7 31.Kc2 Kd6 32.Rb5 Kc7 33.Rc5 Kd7 34.Rc6 g5 35.h3 h6 36.Be4 h5 37.Kc1 h4 38.Kc2 Ke7 39.Kc1 Kf6 40.f4 gf4 41.ef4 Ke7 42.Bf3 Kd7 43.Kd2 Nd5 44.Rc4 Rb2 45.Kc1 Rf2 46.f5! Ne3 47.fe6 Ke7 48.Rf4 Rc2 49.Kb1 Rc4 50.Rc4 Nc4 51.Kc2 Ne3 52.Kd3 Ng2 53.Ke4 Ke6 54.Bg2 ½–½. Kaenel,Hansjuerg (2310) – Belotti,Bruno (2460), Grand Prix Suisse op, 1991. (=1.Nf3 g6 2.d4 Bg7 3.e3 Nf6 4.c4 0-0 5.b4 d6 6.Bb2 e5)

8.Be2 Nbd7 9.0-0 Nf8 10.Nc3 e4 11.Nd2 h5 12.a4 a5 13.ba6 ba6 14.a5 N8h7 15.Qc2 Bf5 16.Nd5 Ng5 17.Rfb1 Nd5 18.cd5 Nf3 19.Bf3 ef3 20.e4 Bh6 21.ef5 Re2 22.Qd3 Rd2 23.Qf3 Bg7 24.fg6 Qf6 25.Qf6 Bf6 26.gf7 Kf7 27.Bc3 Rd3 28.Rc1 Rb8 29.Kf1 Rb3 30.Be1 Rb7 31.Rc6 Rd4 32.Rac1 Bd8 33.Ra6 Bg5 34.Ra1 Rd5 35.Ra8 Bf6 36.a6 Rb3 37.a7 Ba1 38.Rf8 1–0. Miltner,Arndt – Klundt,Klaus, Bodensee, 2000.

8.0-0 e4 9.Nfd2 d5 10.Nc3 Re8 11.a4 (11.cd5 cd5 12.Rc1 Be6+=) 11...Nbd7 (11...Be6 12.cd5 cd5 13.b5+=) 12.cd5 cd5 13.a5 (13.Rc1 Nb8+=) 13...Nf8 (13...Qe7 14.b5+=) 14.Nb3 h5 (14...Ne6 15.Nc5+=) 15.Nc5 Re7 (15...Ne6 16.Qd2+=) 16.b5 N8h7 (16...Ne6 17.Ba3+/-) 17.Qb3 (17.Qd2 Bg4+/-) 17...Bg4 18.Bg4 hg4 19.b6 a6 (19...Nf8 20.Rfc1+/-) 20.Ba3 Bf8 (20...Ng5 21.Rfd1+/-) 21.Rac1+- Ng5 (21...Rb8 22.Rc2+-) 22.Ne2 (22.Rc2 Bg7+-) 22…Nh5 (22...Rb8 23.Nf4+/-) ½–½. Kozomara,Vladimir – Janosevic,Dragoljub, Sarajevo it BIH, 1967. (=1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 e5)

8.0-0 e4 9.Nfd2 d5 10.Nc3 h5 11.a4 Bg4 12.b5 Re8 13.Ba3 Nbd7 14.Bg4 hg4 15.bc6 bc6 16.cd5 cd5 17.Qb3 Rb8 18.Qa2 Qa5 19.Rfc1 Bf8 20.Nb3 Qb6 21.Nc5 Nc5 22.dc5 Qc6 (worse is 22...Bc5 23.Rab1 Qd6 24.Bc5 Qc5 25.Ne4 Qc1 26.Rc1 Re4 27.Qa1+-) 23.Nb5 a6 24.Nd6 Bd6 25.cd6 Qa4 26.Qd2 Re6 27.g3 (better is 27.Bb2!? Qd7 28.Bf6 Rf6 29.Qd5 Rd6 30.Qe4=) 27...Qb5+= 28.Rc3 Nd7 29.Rac1 (29.Qd1!?+=) 29...Ne5–/+ 30.Rc8 Rc8 31.Rc8 Kh7 32.Bb2 Qd7 33.Rc7 Qd6 34.Be5 Qe5 35.Rf7 Kh6 36.Qb4 Re8 37.Qb7 Rb8 38.Qd7 (38.Qa6?? Rb1 39.Qf1 Rf1 40.Kf1 Qa1 41.Kg2 Qd1-+) 38...Kg5 39.Rf4 Qa1 40.Kg2 Qd1 (40...Kh6 A) 41.Qd5?! Rb1 42.Rg4 Rg1 43.Kh3 Qf1 44.Kh4 Qb5 (44...Qf2 45.Qg5 Kg7 46.Qg6 Kf8 47.Qg7 Ke8 48.Re4 Kd8 49.Rd4 Ke8 50.Qe5 Kf8 51.Rd8 Kf7 52.Rd7 Kg8 53.Qg7) 45.Qb5 ab5+/-; B) 41.Rg4 Rf8 42.Rh4 Kg5 43.Qg4 Kf6 44.Qf4 Ke6 45.Qf8+-) 41.Rg4!! (41.Rg4 Qg4 42.h4 Kf6 43.Qg4+-) 1–0. Franke,Reiner (2290) – Lieb,Harald (2260), BL2–N, 1989. (=1.Nf3 d6 2.d4 Nf6 3.c4 g6 4.b4 Bg7 5.Bb2 0-0 6.e3 e5)

8.de5 Ng4+=.

8.b5 Ne7 9.0-0 e4 10.Nfd2 h5 11.Nc3 Bf5 12.Qc2 d5 13.cd5 Ned5 14.Nd5 Qd5 15.Rfc1 Rac8 16.Bc4 Qd6 17.Qb3 Ng4 18.g3 Qf6 19.Rc2 h4 20.Rac1 hg3 21.hg3 Be6 22.Nf1 Qf5 23.a4 Bf6 24.d5 Bd7 25.Bf6 Qf6 26.Qb2 Ne5 27.Nh2 Kg7 28.Bf1 Rh8 29.Bg2 Rh2 30.Kh2 Rh8 31.Kg1 Bf5 32.Qd4 Qe7 33.Rc7 Qd6 34.Rb7 g5 0–1. ferminkatcho (1865) – dors (1765), kurnik, 2012.

8.b5 Ne7 9.Nc3 ed4 10.ed4 d5 11.Ne5 dc4 12.Bc4 Ned5 13.Nd5 Nd5 14.Qb3 Be6 15.0-0 Rc8 16.Rac1 Re8 17.Rfe1 Bf8 18.Re2 Rb8 (18...Qd6 19.Rce1 c6 20.Qg3+=) 19.Rd1 (better is 19.Nf7 Kf7 20.Qf3 Kg7 21.Bd5 Qd5 22.Re6 Qf3 23.d5 Kg8 24.gf3+/-) 19...Nf6?? (better is 19...Nf4 20.Re4 Qg5+=) 20.d5+- (20.Nf7?! Bc4 21.Qc4 Qd5 22.Qd5 Nd5+/-) 20...Bf5 21.h3 (21.d6 Be6 22.Nf7 Bc4 23.Qc4+- (23.Nd8?! Bb3 24.dc7 Rc8 25.Re8 Ne8 26.ab3 Rc7+/-)) 21...Bd6+/- 22.g4 Be4 23.Re4?? (better is 23.Nf3 a5 24.Nd2 Bd5 25.Re8 Qe8 26.Bf6 Bc4 27.Nc4+-) 23…Ne4-+ 1–0. Speer,Albrecht – Mohrenstecher,Juergen, OWL–ch Rheda, 1961. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

8.Bd4 Be6 9.Nbd2 c5 10.Bb2 Nbd7 11.Be2 Qe7 12.0-0 Rfe8 13.Qb3 Nb6 (13...d5 14.Rfd1=) 14.a4 a5 15.ba6 Ra6 16.a5 Nc8 (16...Na8 17.Ra3=) 17.Bc3 Na7 18.Ng5 (18.Rfb1 Rb8+=) 18...Bf5 19.Bf3 Attacking the backward pawn on b7 (19.e4 Bc8+=) 19...Nc6= Exerts pressure on the isolated pawn 20.Ra3 (20.Qb5 Rea8=) 20...h6 21.Bc6 (21.Nh3 Rea8=+) 21...bc6 22.Ngf3 Rea8 23.Qb2 Ne8 (23...d5 24.Rb3=) 24.Bg7+= Ng7 25.Rfa1 Ne8 26.h3 Nf6 27.Rb3 Nd7 28.Qc3 Qf6 (28...Nf6 29.Rb6+=) 29.e4 Be6 30.Qf6 Nf6 31.e5 de5 32.Ne5 Ra5 33.Ra5 Ra5 34.Nc6 (34.Rb8 Kh7 35.Nb3 Ra4 36.Nc5 Ra5 37.Ne6 Re5+-) 34...Ra1 (34...Ra2 35.Rd3=) 35.Kh2 Ra2 (35...Kg7 36.Nd8 Bf5 37.Rb2=) 36.Rd3 Rc2 The isolani on c4 becomes a target (36...Kg7 37.Ne5=) 37.Ne5 Kg7 38.f3 (38.Rd6 Ra2=) 38...Bf5 (38...g5 39.Kg1=+) 39.Rd6= Ne8 (39...g5 40.Nb3 Nh5 41.Rd2=) 40.Rd5 Nf6 (40...f6 41.Ng4 Bg4 42.hg4=) 41.Rd6 Be6 42.Rd3 Nh5 43.Ne4 Bf5 (43...f6 44.Ng4 Nf4 45.Rd2 Rc4 46.Ngf6=+) 44.Rd1 (better 44.Rb3=) 44...Nf4–/+ 45.Nd2 h5 46.Kh1 (better 46.g4 Bd3 47.Kg3-+) 46...f6 47.g4 Nh3 48.Kg2 Nf4 49.Kf1 (49.Kf2 Be6 50.Nc6 hg4-+) 49...Be6 (worse 49...fe5 50.gf5 gf5 51.Kf2-+) 50.Nc6 hg4 51.Nd8 Bf5 (51...Bc4 52.Nc4 g3 53.Nd2-+) 52.Kf2 g3! 53.Kg3 Ne2 54.Kf2 Nc3 55.Ke1 Nd1 56.Kd1 Rb2 57.Nc6 Kf7 58.Na5 (58.Ke2 g5-+) 58...Bd3 (58...Ke6 59.Nab3 Kd6 60.Ke2-+) 59.Ke1 (59.Nab3 Bc2 60.Kc1 Rb3 (60...Bb3?! 61.Kb2 Bd1 62.f4-+) 61.Kc2 Re3-+) 59...Ke7 60.Nab3 Kd6 61.Nc1 Bf5 (61...Bc2 62.Ne2-+) 62.Ne2 Rc2 63.Ng3 Bd3 64.Nge4 Be4 65.Ne4 Ke5 66.Nc5 Kd4 67.Ne4 (67.Kd1 Rc4 (67...Kc5 68.Kc2 Kc4 69.Kd2-+) 68.Nd7 f5-+) 67...f5 (worse 67...Kc4 68.Nf6 Kd3 69.Ng4-+) 68.Ng5 (68.Kd1 fe4 69.Kc2 ef3-+) 68...Ke3 69.Kf1 Rc4 70.Kg2 Rc2 71.Kg3 (71.Kg1 Kf4 72.Ne6 Kg3-+) 71...f4 72.Kh3 Rf2 (72...Rf2-+) 0–1. Kaenel,Hansjuerg (2400) – Gallagher,Joseph G (2515), SUI–chT, 1999. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.c4 e5 7.b5 ed4)

9.a4 Nbd7 10.Be2 Nc5 11.Nbd2 ab5 12.ab5 Bf5 13.0-0 Nfe4 14.Ra8 Qa8 15.Ne4 Be4 16.Bg7 Kg7 17.Qd4 Kg8 18.Ra1 Qd8 19.Nd2 Re8 20.Ne4 Re4 21.Qc3 Re8 22.Bf3 Qe7 23.Ra7 Qe5 24.Qe5 Re5 25.Kf1 Nd7 (25...f5!?+/-) 26.Rb7+- Rc5 27.Bc6 Ne5 28.Rc7 Nc4 29.Rd7 Kg7 30.Ke2 Na3 31.Rb7 Kf8 32.f4 Nc4 33.g4 Na5 34.Rb8 Kg7 35.Be8 Rc3 36.b6 Rb3 37.Ba4 Rb4 38.Bd7 Rb3 39.Kf2 h6 40.h4 Kf6 41.g5 hg5 42.hg5 Ke7 43.Ba4 Rb2 44.Kf3 d5 45.Ra8 Nb7 46.Bc6 Rb6 47.Bd5 Nd6 48.Ra7 Kf8 49.e4 Rb5 50.Rd7 Rd5 51.ed5 Nf5 52.Ke4 Ke8 53.Ra7 1–0. Kaenel,Hansjuerg (2315) – Von Buhrmeister,Peter (2165), Verbandsliga Sued Baden, 2007. (=1.Nf3 d6 2.d4 Nf6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.c4 e5 7.b5 ed4)

9.a4 Re8 10.Bd3 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.0-0 Nc5 14.Bc2 Qe7 15.Bd4 b6 16.Qe2 Bb7 17.Nbd2 Ra8 18.Ra1 Ra1 19.Ba1 Qe8 20.Qd1 Qa8 21.Bd4 Nfd7 22.Qc1 Ne6 23.Bg7 Kg7 24.Qb2 f6 25.Bd3 Nec5 26.Bf1 Kf7 27.Nd4 Qa5 28.Qc1 Qa4 29.f3 f5 30.Be2 Ne5 31.h3 h5 32.Qc3 Qa5 33.Qb2 h4 34.Qc1 Ned3 35.Bd3 Nd3 36.Qc2 Qa3 37.N4b3 Nc5 38.Kf2 Na4 39.Nd4 Kf6 40.e4 f4 41.Ne2 g5 42.Nb1 Qb4 43.Nd2 Nc5 44.Kg1 Bc8 45.Kh2 Be6 46.Nd4 Kg7 (46...Bd7 47.Ne2+=) 47.e5= de5 ½–½. Thompson,Edward (1770) – Sadler,Craig (1860), Nationwide Open Championship, 2009. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5)

9.Bb2 d5 10.Nbd2 d4 11.ed4 Nh5 12.Nb3 Re8 13.Kd2 Nd7 14.Kc2 cd4 15.Bd4 Ndf6 16.h3 Bf5 17.Kb2 Ne4 18.Rg1 Nf2 19.Qd2 Ne4 20.Qc1 Nhg3 21.a4 Rc8 22.Bg7 Kg7 23.Nfd4 Qf6 24.Ka2 Be6 25.Bd3 Bc4! 26.Bc4 Nd6 27.Qc3 Nge4 28.Nf5 Nf5 29.Qf6 Kf6 30.Rac1 Ne3 31.Na5 Re7 32.Bb3 Rd8 33.g4 Rd2 34.Ka3 Rd3 35.Rge1 Nd2 36.Kb2 Nb3 37.Nb3 Nc4! 38.Kc2 Re1 39.Re1 Rh3 40.Nc5 b6 41.Nd7 Kg7 42.Re4 Nd6 43.Rd4 Nb7 44.Rc4 Nd6 45.Rd4 Ne8 46.Ne5 Re3 47.Nc6 h5 48.gh5 gh5 49.Na7 Re7 50.Nc6 Rb7 51.Kd3 Kf6 52.Ke4 Ng7 53.Rd5 Ne6 54.Rf5 Kg6 55.Ne5 Kg7 56.Rh5 Ra7 57.Rf5 Nc5 58.Kd5 Na4 59.Kc6 Re7 60.Nd7 Re6 61.Kc7 Kg6 62.Rf4 Nc5 63.Nc5+- bc5 64.b6 f5 65.b7 Re7 66.Kc6 Re8 ½–½. Miltner,Arndt – Kaenel,Hansjuerg, Steckborn, 1997. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.c4 d6 6.Bb2 e5)

9.Bb2 d5 10.cd5 Nd5 11.Bg7 Kg7 12.Bc4 (12.Nbd2 Be6=) 12...Be6 (12...Qf6 13.Nbd2 Nc3 14.Qc1=) 13.Nbd2 Nd7 14.Qc1 Qe7 15.0-0 N7b6 16.Bb3 Rfd8 17.a4 Rac8 18.a5 Nd7 19.Rd1 Nb4 20.Qc3 (20.Bc4 a6+=) 20...f6 (20...Qf6!? 21.Qf6 Nf6 22.Be6 fe6+/-) 21.Be6+= Qe6 22.Ng5 Qe7 23.Nc4 Nf8 24.h4 Rd1 25.Rd1 Rd8 26.Rd8 Qd8 27.Ne4 Qd1 28.Kh2 Nd5 29.Qa3 Qg4 30.Ncd6 Qh4 31.Kg1 Nd7 (31...Qh5 32.Qc5 (32.Nb7?! Qd1 33.Kh2 Qh5 34.Kg1 Qd1 35.Kh2 Qh5 36.Kg1=; 32.Nc5?! Qd1 33.Kh2 Qh5 34.Kg1 Qd1 35.Kh2 Qh5 36.Kg1=) 32...Qd1 33.Kh2+/-) 32.Nc5 Ne5?? (better is 32...Nc5 33.Qc5 Qh5+/-) 33.Ne6+- (33.Ncb7 Ng4 34.Ne4 f5–/+; 33.Ndb7?! Qg4=) 33...Kh6 (33...Kg8 34.Qc5 Qf2 35.Kf2 Nd3 36.Kf3 Nc5 37.Nc5 b6+-) 34.Nf7!! (34.Nb7?! Qg4 35.e4 Qe6+/-) 34...Nf7 35.Qf8 Kh5 36.Qf7 Kg4 37.Qd7 Ne3 38.Qd4 (38.fe3?! Qe1 39.Kh2 Qh4 40.Kg1 Qe1 41.Kh2 Qh4 42.Kg1=) 38...Kh5 39.Ng7 Kg5 40.Qe3 (40.Qe3 Qf4 41.Ne6 Kf5 42.Nf4 Kg4 43.Ne6 Kf5 44.Ng7 Kg4 45.Qg3#) 1–0. Kaenel,Hansjuerg (2415) – Bischoff,Peter (2095), SUI–ch Graechen, 1999. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.c4 e5)

9.Bb2 Nbd7 10.Bd3+=.

9.Bb2 Nbd7 10.Qd6?? Ne4 11.Bg7 Nd6 (11...Kg7?! 12.Qd1–/+) 12.Bf8 Nf8-+.

9.Bb2 Be6 10.Nbd2 Qe7 11.Be2 h6 12.0-0 Nbd7 13.Qc2 Rfe8 14.a4 a5 (14...d5 15.Rfd1=) 15.Rac1 (15.h3 d5=) 15...Nb6= 16.Rfd1 Red8 17.h3 d5 18.cd5 Nbd5 19.Nc4 (19.Be5 Nb4 20.Qb2 Nd3 21.Bd3 Rd3=) 19...Nb4 20.Qb3 Nfd5 (20...Ne4 21.Bg7 Kg7 22.Qb2 f6 23.Nfd2 Nd2 24.Nd2=) 21.Bg7 Kg7 22.Qb2 (22.e4 Nf4 23.Qe3 Rd1 24.Rd1 Ne2 25.Qe2 f6+=) 22...Qf6 (22...f6 23.Rd2=) 23.Qf6 (23.Nfe5 Kg8+=) 23...Kf6= 24.Rd2 Ke7 25.Kf1 Rdb8 (25...Bf5!?=) 26.Nfe5+= g5 ½–½. Kaenel,Hansjuerg (2450) – Gallagher,Jo (2510), ch–SUI, Pontresina SUI, 2000. (=1.Nf3 g6 2.d4 Bg7 3.b4 d6 4.e3 Nf6 5.Bb2 0-0 6.c4 e5)

9.Nbd2 Nc5 10.Be2 b6 11.0-0 a5 12.Bc5 bc5 13.a4 Nd7 14.Ra2 Nb6 15.Qc2 Qe7 16.Nb3 Be6 17.Rc1 Ra7 18.Nfd2 f5 19.Bf3 Qf7 20.Qd3 h6 21.g3 Kh7 22.Bc6 Bd7 23.Bd7 Nd7 24.Nf3 Nb6 25.Ne1 Qe6 26.Ng2 g5 27.Nd2 Kh8 28.h4 Nd7 29.hg5 Ne5 30.Qe2 hg5 31.f4 Ng4 32.Nf3 gf4 33.ef4 Qf6 34.Ngh4 Raa8 35.Re1 Rfe8?? (better is 35...Qf7 36.Qd3 Rac8+/-) 36.Qe8+- Re8 37.Re8 Bf8 38.Rf8! (38.Rf8 Qf8 39.Ng6 Kg7 40.Nf8 Kf8 41.Re2+-) 1–0. Miltner,Arndt – Luft,Andreas, Germany, 1997. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.c4 e5)

9.Be2 Qe7 10.0-0 Nc5 11.Nbd2 a6 12.a4 Bd7 13.Qc2 Rfd8 14.Rfd1 Nfe4 (14...Re8 15.a5=) 15.Ne4+= Ne4 16.Bg7 Kg7 17.Nd4 Nc5 18.Bf3 Qg5 19.Nb3 Nb3 20.Qb3 ab5 (20...Rab8 21.b6 Qa5 22.bc7 Qc7 23.Bd5+=) 21.cb5+- c6 22.bc6 Bc6 23.Bc6 bc6 24.Qc3 Qe5 25.Qc6 Rdc8 26.Qb6 Rc5 27.g3 Rca5 28.Rd4 R8a6 29.Qb3 h6 30.h4 Rc5 31.Rad1 Rac6 32.Rf4 Rc7 33.Kg2 Rc3 (33...Qe7 34.Qd3 R7c6 35.Rb4+/-) 34.Qb6 (34.Qd5 R3c6+-) 34...R3c6 35.Qb4 Qc5 (35...Qe7 36.Qd4 Kg8 37.h5+/-) 36.Qd2 (36.Qd4 Kg8+-) 36...Ra6 37.Qa2 Qc2?? (better is 37...Rca7+/-) 38.Rf7!!+- Kg8 39.Qc2 Rc2 40.Rf6 Rcc6 41.Rg6 Kh7 42.Re6 1–0. Kaenel,Hansjuerg (2305) – Schaerer,J (1975), ch–SUI, Graechen SUI, 2009. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5)

8.Nd4 c5 9.bc5 dc5 10.Ndb5 Nc6 11.Be2 Be6 12.0-0 Nd7 13.Qc1 a6 14.Nd6 Qc7 15.Rd1 Rad8 16.Nde4 Qe5 17.f4 Qb8 18.Nd5 f6 19.Bc3 b5 20.cb5 ab5 21.a3 Rde8 22.Nd6 Nd4 23.Bd4 Qd6 24.Nf6 Nf6 25.Bf6 Qd1 26.Qd1 Bf6 27.Rb1 Bf5 28.Qd5 Kh8 29.Rb5 Re3 30.Qc5 Rfe8 31.Bf1 Re1 32.Qd6 R1e6 33.Qb4 Kg7 34.Rb7 Kh6 35.Qd2 Rd8 36.Rd7 Rd7 37.Qd7 Re4 38.Qd2 Bd4 39.Kh1 Be3 40.Qd1 Rf4 41.h3 ½–½. Ledger – Hebden, Port Erin 1997.

8.Nd4 Nc6 9.Nc2 Re8 10.Be2 Ne4 11.Ne4 Bb2 12.Rb1 Bg7 13.Nd2 Bf5 14.b5 Ne5 15.0-0 Qh4 16.Nf3 Nf3 17.Bf3 Qc4 18.Rc1 Bb2 19.Na3 Qa2 20.Rc7 Qa3 0–1. Woro – Modes, Roanoke 1986.

8.Nd4 Re8 9.Be2 Nbd7 10.a4? c5 11.Ndb5 cb4 12.Nd5 (12.Na2 a5 13.Nd6 Re6 14.Nb5 Ne4) 12...Nd5 13.Bg7 Ne3! 14.fe3 Kg7 15.0-0 (15.Qd4 Re5 16.Nd6) 15...Qb6 16.Kh1 (16.Nd6 Qe3 17.Rf2 Re6 18.Rb1 Nf6) 16...Re3 17.Nd6 (17.Qd2 Nf6 18.Bf3 b3 19.Nd6 b2) 17...Ne5 18.c5 Qc5 19.Rc1 Rc3 20.Ne8 Kf8 21.Qd8 Bg4 22.Qa8 Rc1 23.Nf6 Bc8 24.h3 b3 0–1. Mothes – Dopper, corr SOK–95–110 1995 (Dopper, Mothes).

8.b5 e4 9.Nfd2=.

10.Ba1 Nc6 11.b5 Ne7 12.0-0 e4 13.Nfd2+= Re8 14.Nc3 Nf5 (14...d5 15.Qc2+=) 15.Qc2+/- Qe7 16.Bb2 h5 17.Ra1 h4 (17...c5!? 18.dc5 dc5+=) 18.Ra8+/- h3 (18...Kh7 19.Nde4! Ne4 20.Qe4 Qe4 21.Ne4+-) 19.g3 (19.g4 Nh4 20.Nde4 Ng2+-) 19...Nh6 (19...c5 20.bc6! bc6+/-) 20.c5 (better 20.Nde4!? Nhg4 21.Bd3+-) 20...d5+= 21.c6 b6? (21...bc6 22.bc6 Bd7 23.Ba3+/-) 22.Qa4 (22.Ba3 Qd8+-) 22...Bg4 (22...Be6 23.Qa3 Qa3 24.Ra3+=) 23.Bg4 (better 23.Nd5!? Nd5 24.Ba3+-) 23...Nhg4+= 24.Re8 (24.Ra7 Rc8+=) 24...Qe8= 25.Ba3 Qe6 26.Qa8 Kh7 27.Qd8 Qf5 28.Nd1 Nh2 (28...Qh5 29.Nc3 (29.Qc7 Nh2 30.Nc3 Nhg4-+) 29...Nh2 30.Kh2 (30.Qc7 Nhg4 31.Qf4 Bh6 32.Qf6 Nf6-+) 30...Ng4 31.Kh1 Nf2 32.Kh2 Ng4 33.Kh1 Ne3 34.Qc7+=) 29.Kh2+= Ng4 30.Kg1 h2 31.Kg2 Qh5?? (better 31...h1Q 32.Kh1 Nf2 33.Nf2 Qf2=) 32.Qh4+- h1Q (32...Bf6 33.Qh5 gh5 34.Nf1 h1Q 35.Kh1+-) 33.Qh1 Qh1 34.Kh1 Bf6 35.Kg2 (35.Nc3 Bd8+-) 35...Bd8 36.Bf8 (better 36.Nc3!? Nf6+-) 36...Kg8 37.Ba3 f5?? (37...Kh7 38.Nc3 Nf6+-) 38.Nb3 Nf6 39.Nd2 Kf7?? (39...Ng4 40.Nc3 Nf6+-) 40.Kf1 Ke6 41.Ke2 Ng4 42.f3 ef3 43.Nf3 Nf6 (43...g5+-) 44.Ng5 1-0. Gehaktbalmetjus (2020) - XChess1971 (2345), Rated Bullet game, lichess.org, 2019.

10.Ba1 Ne4 11.Nc3 Nc3 12.Bc3 Qe7 13.0-0 Re8 14.Re1 Bf5 15.Qa4 Nd7 16.Qa7 Bg4 (16...Be4 17.Nd2 ed4 18.Bd4 Bd4 19.Qd4+= (worse 19.ed4 Bd3=+)) 17.de5 (17.Qb7 Nb6+/-) 17...Ne5 (17...Bf3 18.Bf3 Ne5 19.Be5 Be5 20.Qb7+=) 18.Ne5 (18.Be5 de5 19.Qb7 Bf3 20.Bf3+/- (20.Qf3?! e4 21.Qh3 Qb4=)) 18...Be2= 19.Re2 Be5 20.Be5 Qe5 21.h3 Qe4 22.Qa4 Re7 23.Qa8 Kg7 24.Qa2 Qd3 25.Qb2 f6 26.Qa2 Qd1 27.Kh2 Qc1 28.Rc2 Qd1 29.Qb2 Re4 (29...Qh5 30.Qc1=) 30.Qc3 Qb1 31.Rd2 Qe1 (31...b6 32.Rc2=) 32.c5 (32.Qc2 Re5+=) 32...d5= 33.Qd3 c6 (33...Rb4 34.Qd5 Qc1 35.Qd8 Qc5 36.Rd7 Kh6 37.Qf6+-) 34.b5 (34.Rb2 h6=) 34...Qc1 (34...Rc4 35.bc6 bc6 36.Ra2=+) 35.bc6 bc6 36.Rc2 Qb1 37.Qc3 (37.Qe2 Qb8 38.g3 Ra4=) 37...Re7 (better 37...Rc4!? 38.Rb2 Rc3 39.Rb1 g5-/+) 38.Qd3 (38.Rb2 Qf5=) 38...Qa1 (38...Ra7 39.Qd2=) 39.Qb3 Qa7 (39...Qe5 40.g3=) 40.Qb6 Qc7 41.Kg1 Rd7 (41...Qc8 42.Ra2=) 42.Ra2+= Kf7 (42...Kh6 43.Ra6 Qb6 44.cb6+=) 43.Ra6+/- Qb6 44.cb6 (44.Rb6?! Rc7=) 44...Ke6 45.Ra7 Rd8 46.Rh7 Rb8 47.b7 c5 48.Kf1 Kd6 49.Ke2 Kc6 (better 49...c4+-) 50.Kd2?? (better 50.g4+-) 50...Rb7= 51.Rb7 (better 51.Rh6!? Rg7 52.h4=) 51...Kb7-/+ 52.g4 (52.h4 f5-/+) 52...g5 53.f4 (53.e4 Kc6 (worse 53...de4 54.Ke3-+) 54.ed5 Kd5-+) 53...Kc6-+ 54.Kc3 Kd6 55.Kd3 Ke6 56.Kc3 Kd6 57.Kb3 (57.Kd3 Ke7-/+) 57...Kc6 58.Ka4?? (58.Kc3 Kc7 59.Kc2-+) 58...Kb6 (better 58...d4 59.Kb3 de3-+) 59.Kb3 Kb5 60.Kc3 Ka5 (60...Ka4 61.f5 Kb5 62.h4 gh4 63.g5 fg5 64.f6-/+) 61.Kb3 Kb5 62.Kc3 Kc6 (62...c4 63.Kc2-+) 63.Kb3 Kd6 64.Kc3 Ke6 65.Kd3 Kd6 66.Kc3 Kc6 67.Kb2?? (67.Kb3 Kd7-+) 67...Kb6 68.Ka2 (68.Kb3 Ka5-+) 68...Ka5 69.Ka3?? (69.Kb3 c4 70.Kc3-+) 69...Kb5 70.Kb3 d4 71.ed4? (71.fg5 fg5 72.ed4 cd4 73.Kc2-+) 71...cd4 (71...gf4 72.Kc2 f3 73.Kd1 cd4 74.Kd2-+) 72.Kc2 Kc4 73.Kd2 gf4 (better 73...d3 74.fg5 fg5-+) 74.h4-/+ f3 75.h5 (75.g5 fg5 76.h5-+) 75...d3 76.h6 (76.Ke3 Kc3 77.h6-+) 76…f2 (76...f2 77.h7 f1Q 78.Ke3 d2 79.h8Q Qe1 80.Kf4 Qe5 81.Kf3 d1Q 82.Kg2 Qde2 83.Kg1 Qa1) 0-1. negrovich1 (1935) - Pikozrout (2270), Rated Bullet game, lichess.org, 2015. (=1.Nf3 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5)

9.0-0+= Bb7 10.Nc3 Nbd7 11.Rc1 Nh5 12.Re1 f5 13.Qb3 e4 (13...Kh8 14.de5 de5 15.Na4+=) 14.Nd2 Kh8 15.Na4 White intends c5 (15.Bh5 gh5 16.Nd5 Rg8+/-) 15...Qg5+= 16.c5 f4? (better 16...bc5 17.dc5 Ne5+=) 17.c6+- f3 18.Bf1 Bc8 (18...Bc6 19.Rc6 (19.bc6?! Ndf6+-) 19...fg2 20.Bg2+-) 19.Ne4 (19.cd7 Bd7 20.Ne4 Qh4+-) 19...Qe7 (19...Qg4 20.cd7 Bb7 21.Nd6 cd6 22.g3+-) 20.cd7 Bd7 21.Ng3 (21.Ng3 Ng3 22.hg3+-; worse 21.Rc7 Qe4 22.Rd7 Qf5 23.Rg7 fg2 24.Rg8 Rg8 25.d5 Ng7 26.Bg2 Rgf8+-) 1-0. jhonores (2240) - rlfs (2245), Rated Blitz game, lichess.org, 2020.

9.de5 Ng4 (9...Nfd7 10.Qc2 de5 11.Nc3+=) 10.Nc3 Ne5 11.Nd4 (11.Ne5 Be5 12.f4 Bg7+=) 11...Bb7 12.0-0 Ned7 13.Bf3 Bf3 14.Qf3 (< 14.gf3 Qg5 15.Kh1 Qc5=+) 14...Ra7 15.Nd5 Ne5 16.Qe2 Ned7 (16...a4 17.f4 Ned7 18.e4+=) 17.Rad1+/- Nc5 18.Rfe1 Ne6 (18...Re8 19.a3+/-) 19.Nf3 Nc5 20.Bg7 Kg7 21.e4 Ra8 (better is 21...Re8!?+/-) 22.e5+- Nbd7 (22...Re8 23.Qb2 Kh6 24.ed6 Re1 25.Re1 cd6 26.Qd2 Kg7 27.Qd4 Kh6 28.Re7+-) 23.Qb2 Kg8?? (23...de5 24.Ne5 Ne5 25.Qe5 f6+-) 24.ed6 cd6 25.Ne7 (25...Qe7 26.Re7+-) 1-0. MrkT - mrshoqi, Internet, 2005.

9.ed4 Nbd7 10.0-0 Nb6 11.Nbd2 Re8 12.Re1 Bf5 13.Nh4 Bd7 14.Qc2 Ne4 15.Ne4 Qh4 16.Bf3 Bf5 17.g3 Qd8 18.c5 Nd5 19.Rad1 Nb4 20.Qd2 d5 21.Nc3 Re1 22.Re1 Nd3 23.Rb1 Nb2 24.Rb2= c6 25.bc6 bc6 26.Qf4 h5 27.Rb7 Qf6 28.Ne2 Re8 29.Qd2 a4 30.Ra7 Bh3 31.Bg2 Bg2 32.Kg2= Qe6 33.Nc3 h4 34.Ra4 h3 35.Kf1 Qf5 36.Qd1 Re3–/+ 37.g4 Qf6 38.Ne2?? Qf3-+ 39.Ke1 Re4 40.Rb4?? Qg4 41.Rb8-+ Kh7 42.Rb3 Qg1 43.Kd2 Qf2 44.Rh3 Kg8 45.Qe1 Qg2 46.Rd3 Qh2?? 47.Kd1–/+ Qb8 48.Rb3 Qa7 49.Qd2 Rh4 50.a3 Bh6 51.Qd3–/+ Qe7 52.Qg3?? Rh1-+ (52...Rh1 53.Qe1 Qh4 54.Qh1 Qh1 55.Kc2 Qe1 56.Rb8 Kg7-+) 0–1. Vrhovnik,Damir (2095) – Altshul,Raffael (2220), Rijeka CRO, 2011. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Nd4 Nbd7 10.Nc3 Nc5 11.Bf3 Re8 12.0-0 Nfe4 13.Ne4 Ne4 14.Qc2 Qe7 15.Rac1 Bd7 16.Ne2 Bf5 17.Bg7 Kg7 18.Qb2 Qe5 19.Qe5 Re5 20.Rfd1 b6 21.Rd4 Rae8 22.Nf4 Nc5 23.Nd5 Rc8 24.h4 h5 25.g3 Ree8 26.Bg2 Be6 27.Nf4 Bd7 28.Rcd1 Bf5 29.Nd5 ½–½. Pakleza,Zbigniew (2345) – Murawski,Grzegorz (2470), Krakow op–A Poland, 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 a5)

8.ed4 a5 9.b5 Ne4 10.0-0 (10.Nc3 Nc3 11.Bc3 Nd7+=) 10...Nd7 (10...d5 11.Nc3 Nc3 12.Bc3 dc4 13.Bc4+=) 11.Nc3 (11.Re1 Re8+=) 11...Nc3 12.Bc3 Re8 13.Re1 d5 (13...Nc5 14.Rc1 (worse 14.dc5 Bc3 15.cd6 Bg4-+) 14...Ne4 15.Ba1=) 14.a4 (14.Qc2 a4+=) 14...dc4 (14...Nf6 15.Rc1+=) 15.Bc4+= Nb6 16.Bb3 Bg4 17.Re8 (17.Qd3 Be6 18.Be6 Re6 19.Re6 fe6+=) 17...Qe8 18.Qd3 Qd7 19.Qe4 Bf3 20.Qf3 (worse 20.gf3 c6=+) 20...c6 21.bc6 bc6 22.Rb1 Nd5 23.Bd5 Qd5 (worse 23...cd5 24.Rb5+-) 24.Qd5 cd5 25.Rb5 The isolani on a5 becomes a target 25...Rc8 26.Bd2 Bd4 27.Rd5 Bb6 28.Kf1 (28.g4 Rd8 29.Rd8 Bd8=) 28...Rc2 (28...Rd8!? 29.Rd8 Bd8+=) 29.Ba5+- Ba5 (29...Bf2!? 30.Bd2 Ba7+-) 30.Ra5 h5 31.h4 Ra2 (31...Kg7 32.Ra8+-) 32.g3 Kg7 33.Ra6 Kh7 34.Kg2 Ra3 35.Ra8 (35.a5 Kg7+-) 35...Kg7 36.Kf1 Ra2 37.a5 Kf6 38.a6 Kg7 (38...Ke6 39.Ra7+-) 39.Ke1 (39.Kg2 Kf6+-) 39...Kf6 40.Ra7 Ke6 41.Kf1 Kf6 42.Kg1 Ra1 (42...Ke6 43.Kg2+-) 43.Kg2+- Ra3 (better 43...Ke5+-) 44.Kf1 (44.Ra8 Ke5+-) 44...Ra2 45.Ke1 Ke6 46.Ra8 Kf6 47.a7 Kg7 (47...Ke7 48.Kd1+-) 48.Kd1+- Ra1 49.Kc2 Ra2 (49...Kf6 50.Kc3+-) 50.Kb3 Ra1 51.f4 (better 51.f3!?+-) 51...f5 ½–½. Labib,Ibrahim Hasan (2435) – Kempinski,Robert (2545), Linares, 2003. (=1.e3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5 7.Be2 ed4 8.ed4 a5)

8.ed4 c6 9.0-0 d5 10.c5 Bf5 11.Nc3 Ne4 12.Ne4 de4 13.Ne5 Nd7 14.Nc4+= Nf6 15.Nd6 Qd7 16.Qd2 Ne8 17.Nf5 Qf5 18.f3 Nc7 19.fe4 Qe4 20.Bf3 Qe6 21.Rfe1 Qd7 22.a4 a6 23.Rad1 Rad8 24.Qc2 Nd5 25.Qc4 Bf6 26.Bc1 Rfe8 27.Re8 Qe8 28.Kf2 Qe6 29.Re1 Qf5 30.Re4+= Qd7 31.Bg4 Qc7= 32.g3 b5+= 33.cb6 Qb6 34.Bd2 h5 35.Be2+= Nc7 36.Be3 Qb7 37.Bf3 Nd5= 38.Bd2 Qd7 39.Kg2 Nc7 40.Bf4 Nd5 41.Be5 Be5 42.Re5. Ho,Matthew (2260) – Yap,Nicolas A (2185), Michael Franett Mem, 2005.

8.Qd4 a5 9.b5 Bf5 (9...Nbd7 10.Nc3+=) 10.Qh4 Nbd7 (10...Ne4 11.Bg7 Kg7 12.Qd8 Rd8 13.Nd4+=) 11.Nbd2 (11.Nd4 Ne4 12.Qd8 Rfd8+=) 11...Nc5+= 12.0-0 Re8 13.Rfd1 (13.Nd4 Bd3+=) 13...Bc2 (13...Na4 14.Bd4–/+) 14.Rdc1 Bd3 15.Re1 a4 (15...h5 16.Bd4+=) 16.Bd4 Be2 17.Re2 Nfd7 18.Qd8 Rad8 19.Bg7 (19.Rd1 f5+=) 19...Kg7 20.Nf1 (20.Nd4 Ne5+=) 20...Ne4 (20...Ne5 21.N1d2–/+) 21.Ng3+= Ng3 22.hg3 Re4 23.Nd2 (23.Rc1 Nc5+=) 23...Re6 (23...Re5 24.Rc1+=) 24.Rc1 Rde8 25.Nf3 f5 26.Ng5 R6e7 27.Nf3 h5 28.Rd2 Nc5 29.Rd4 b6 30.Rcd1 Ne4 31.R4d3 Kf6 32.Kf1 Nc5 33.Rd4 g5 34.Rd5 Ne4 (34...Rf7 35.Ke2+=) 35.R1d3 Kg6 ½–½. Roldan,Antonio Jose (2015) – De Leeuw,Dirk (1885), IECC, 1998.

8.Qd4 Re8 9.0-0 a5 10.b5 Nbd7 11.Qc3 Nc5 12.Qa3 Be6 13.Nbd2 Qe7 14.Rad1 a4 15.h3 Rad8 16.Nd4 Bc8 17.Qc3 h6 18.Bf3 Nh7 19.Nf5 Bc3 20.Ne7 Re7 21.Bc3 Be6 22.Bd4 f5 23.Rc1 Kf7 24.Rc3 Ng5= 25.Be2 Nge4 26.Ne4 Ne4 27.Ra3 Ra8 28.Rb1 c5 29.Ba1 b6 30.Rd1 Rd7 31.f3 Nf6 32.Rad3 Rad8= 33.Ra3 Ra7 34.Rad3 Ne8 35.Ra3 d5= 36.Be5 Ke7 37.Rad3 Rad7 38.Ra3 dc4 39.Rd7 Rd7 40.Ra4 Nd6 41.Bd6 Rd6 42.Bc4 Bc4 43.Rc4 Rd1 44.Kh2 Rb1 45.Rc2 Rb5 46.Kg3 Ke6 47.Kf2 Kd5 48.Ke2 c4 49.Kd2 Ra5 50.Ke2 b5 51.Kd2 Ra3 52.Ke2 Kc5 (53.h4 g5–/+) 0–1. Juul,Alex – Kristensen,Svend Kronborg, corr, 1973.

9.0-0 Bb7 10.Nc3 Nc6 11.a3 (11.Qa4 Ne7=) 11...d5 (11...Re8 12.Re1=) 12.c5 (12.Re1 a6+=) 12...Ne4 13.Qd3 (13.b5 Na5 14.Qa4 Re8=) 13...Ng5 (13...Re8 14.Rac1+=) 14.Nd1 (14.Ng5 Qg5 15.Nb5 Ba6+=) 14...bc5+= 15.dc5 Bb2 16.Nb2 Nf3 17.Bf3 Ne7 (better is 17...Ne5!? 18.Qd1 Qf6+=) 18.Rad1 c6 19.a4 (19.Rfe1 Qc7+=) 19...a5 (19...Nf5 20.b5 Rb8 21.Bg4=) 20.b5+= Qc7 (20...Nf5!?+=) 21.b6+/- Qf4 22.Rfe1 (22.Qe3 Qf6+/-) 22...Nf5 23.Qc3 (better is 23.Qd2 Qd2 24.Rd2+=) 23...Ng7 (better is 23...f6!?+=) 24.Re7+- Qb8 (24...Rab8 25.g3 Qf5 26.Kg2+/-) 25.Nd3 (25.Bg4 Qf4 26.h3 Rab8+-) 25...Nf5 26.Rc7 Rc8 27.Rc8 Qc8 28.Ne5 (28.Bg4 Qd7+-) 28...Qf8 (28...h5 29.Bd5 cd5 30.c6+-) 29.Ng4 (29.Nd7 d4 30.Rd4+- (30.Nf8 dc3 31.Nd7 c2–/+)) 29...Qg7? (29...d4 30.Qc1 Kg7+-) 30.Qd2 (better is 30.Nf6 Kh8 31.Bd5+-) 30...Re8+/- 31.h3 h5 32.Nh2 Nh4 (32...Qe5 33.Qa5 Qf4 34.Qa7+/-) 33.Qa5 (better is 33.g3 Nf5 34.Bg2+/-) 33...Nf3? (better is 33...Qb2+/-) 34.Nf3+- (34.gf3?! Qf6+=) 34...g5 (34...f6 35.Re1 Re1 36.Qe1+-) 35.Nd4 (35.Nd4 Qe5 36.Qc3+-) 1–0. Wozniak,Andrzej (1800) – Frysiak,Adam (1800), corr 1. AMM Poland, 1991.

9.0-0 Bb7 10.Nbd2 Nbd7 11.Bd3 Re8 12.Qc2 Nh5 13.Rfe1 Nf4 14.Bf1 Re1 15.Re1 Qf6 16.Ba1 Qd8 (16...d5!?=) 17.g3+/- Ne6 18.d5 Nef8 19.Bg7 Kg7 20.Ne4 f5 21.Qc3 Kg8 22.Neg5 Qf6 23.Qe3 h6+= 24.Ne6 g5?? 25.Nc7+- Rc8 26.Ne6 Ng6 27.Qd4 Nde5 28.Ne5 Ne5 29.f4?? Nf3-+ 30.Kf2 Nd4 (30...Nd4 31.Re3 Ne6-+; 30...Qd4?! 31.Nd4 Nd4 32.Re7+=) 0–1. ferminkatcho (1840) – azatied (1810), kurnik, 2012.

9.0-0 Bb7 10.d5 c6 11.dc6 Nc6 12.a3 Qc7 13.Nbd2 Rad8 14.Nb3 Rfe8 15.b5 Ne5 16.Ne5 de5 17.Qe1 Qe7 18.a4 Nd7 19.a5 Qg5 20.g3 Nf6 21.h4 Qh6?? 22.Bc1+/- g5 23.Bg5 Qg6 24.ab6 ab6 25.Ra7 Bc8 26.c5 bc5 27.Nc5 h6 28.Bf6 Bf6 29.Ne4?? Bg7?? 30.b6 Qb6 31.Qa1 Bb7 32.Bh5?? Rf8?? 33.Re1 Be4 34.Re4 Qc6 35.Re5 Be5 36.Qe5 Rd1?? 37.Bd1+- Qc1 38.Qe2 Rd8 39.Qg4 Kf8 40.Qb4 Kg8 41.Qg4 Kf8 42.Qb4 Kg7?? 43.Qg4 Kf8= ½–½. typ48 – dinamit3 (1620), kurnik, 2012.

9.a3 Qb6 10.b5=.

9.a3 Nh5 10.0-0 Nc6 11.b5 (worse 11.bc5 dc5 12.Qd2 cd4–/+) 11...Na5 12.Bc3 (12.Ra2 Nf4 13.Re1 Bg4 14.dc5 Ne2 15.Qe2 Re8=+) 12...Nf4= 13.dc5 dc5 14.Bg7 Qd1 15.Bd1 Kg7 16.Nbd2 Re8 17.Ba4 (17.g3 Nd3 18.Kg2 Bg4=+) 17...Ne2 (17...Be6 18.Nb3 Nc4 19.Nc5–/+) 18.Kh1=+ b6 19.Rae1 (better 19.Bc2!?=+) 19...Bf5 20.Bd1 Nc3 21.Re8 Re8 22.Nh4? (better 22.a4-+) 22...Rd8 23.Nhf3 Nd1 24.Rd1 Nc4! 25.a4 (25.Nc4 Rd1 Pinning (25...Rd1 Deflection)) 25...Bg4 0–1. samyaksamadhi – pcmvr, net–chess.com, 2018.

9.b5 a5 10.0-0+= b6 (10...Re8 11.Re1+=) 11.Nbd2 Qc7 12.Re1 Rd8 13.Qc2 Bf5 14.Bd3 Bd3 15.Qd3 cd4 16.Nd4 d5 17.Qf3 Ne4 (17...a4!?+-) 18.Ne4+- de4 19.Re4 Nd7 20.Rae1 Nc5?? (better 20...Rac8+-) 21.Re7+- Qd6 (21...Qe7 22.Re7 Rf8 23.Rf7 Rf7 24.Qa8 Rf8+-) 22.Qf7 Kh8 23.Qg7 1–0. DEFFM – GuestVDNJ, freechess.org, 2019.

9.b5 a6 10.Nc3=.

9.bc5 dc5 10.d5 Qb6 11.Bc3 Ne4 12.Bg7 Kg7 13.a3 Bg4 14.Ra2 Nd7 1–0. Lindstrom,Timothy – Krakovsky,Peter (1710), OP–2009–0-01011, 2009. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 ed4 8.ed4)

9.b5 Na5 10.0-0 b6 11.d5 Re8 12.Re1 Nb7 13.Qc2 (13.Nd4 a6+=) 13...Nc5= 14.Nbd2 (14.Nc3 Bf5 15.Qc1 a6=) 14...Bf5 15.Qc1 a5 (15...a6 16.Nd4 Bd3 17.Qd1=) 16.Nb3 Na4 (16...Bd3 17.Bd1=) 17.Nfd4 (17.Bd4 Nc5+=) 17...Bd7 (17...Ne4 18.Bd3=+ (18.Nf5? Bb2 19.Qc2 gf5-+)) 18.Rb1 (18.Ba3 Ng4=) 18...Ne4 0–1. GuestWCNB – GuestQKHJ, freechess.org, 2017.

9.b5 Ne7 10.0-0 b6 11.d5 (11.Nc3=) 11...Ne4 (better 11...a6!? 12.Na3 Nf5=) 12.Bg7+= Kg7 13.Qd4 Nf6 14.h3 Nf5 15.Qb2 Kg8 16.g4 Ng7 17.Nc3 Re8 18.Nd4 Ne4 19.Ne4 Re4 20.Bd3 Re8 21.Rfe1 Qh4 (21...Bd7 22.Nf3+=) 22.Re8+- Ne8 23.Kg2 h5 24.Re1 Ng7 25.Nf3 Qd8 26.Qd4 hg4 27.hg4 Bd7? (better 27...a6 28.a4 Ne8+-) 28.Qf4+- Qf8 (28...Ne8 29.Ng5 Nf6+-) 29.Rh1 Ne8 (29...Bg4 30.Qg4 a6+-) 30.Bg6 fg6 (30...Qg7 31.Bf7! Qf7 32.Rh8 Kh8 33.Qf7 Bg4 34.Qf8 Kh7 35.Ng5 Kg6+-) 31.Rh8!! Kh8 (31...Kh8 32.Qf8 Mate attack) 32.Qf8 Kh7 33.Ng5 1–0. Pereira – Iprotis, internet, 2020.

9.c5 a5 10.b5 c6 11.a4 Bf5 12.0-0 Bb1 (12...Ne4!?=) 13.Rb1+= Ne4 14.Bd3 f5 15.Re1 Nd7 16.Qc2 Ndf6 (16...Qf6!?+/-) 17.Ne5 Nd7 (better 17...cb5!? 18.f3 Ng5 19.Bb5 Nf7+/-) 18.bc6+- (18.Be4?! fe4 19.bc6 bc6 20.Nc6 Qf6+/-) 18...Ne5 19.cb7 (19.Be4?! Nc6 20.Bf3 Qd7+/-; 19.de5?! bc6 20.f3 Ng5+=) 19...Nf3? (19...Rb8 20.de5 Rb7+-) 20.gf3 Qg5 21.Kh1 Rae8 (21...Rab8 22.fe4 (worse 22.Be4 fe4 23.c6 Qf6+-) 22...fe4 23.Ba6+-) 22.fe4 (worse 22.Be4 fe4 23.fe4 Rb8+-) 22...fe4 23.Bf1 Qh4 24.Re2 (24.Qb3 Qd8+-) 24...Bh6 25.Bc1 Bg7 (25...Bc1 26.Qc1 Qf6 27.Reb2+-) 26.Be3 Rf5 (26...Qe7 27.c6 Qc7 28.Qc5+-) 27.b8Q Rb8 28.Rb8 Bf8 (28...Rf8 29.Qb3 Qh5 30.Rf8 Bf8+-) 29.c6 Kg7 30.c7 Bd6 31.h3 Rf3 32.c8Q Bb8 33.Qd7 (33.Qb8 Rh3 34.Bh3 Qh3 35.Kg1 Qe6 36.Qcc7 Qf7 37.Qe5 Qf6 38.Qbc7 Kg8 39.Qf6 h6 40.Qcg7) 33...Rf7 34.Qg4 (better 34.Qd5 Qe7+-) 34...Qe7 35.Qcc8 (better 35.Qc6 Qd8+-) 35...Qb4 36.Rc2 (36.Rb2 Bh2 37.Rb4 Rc7 38.Bh6 Kh6 39.Qf8 Rg7 40.Qh4) 36...Qd6 37.Qg2 Rf8 38.Qcg4 (38.Qb7 Rf7 39.Bh6 Kh6 40.Qf7 Qf4 41.Qd5 Bd6+-) 38...h5 39.Qg5 Rh8 40.Rc8! Rc8 41.Qh6 Kf7 42.Qh7 Kf8 43.Qh8 Kf7 44.Qc8 g5 45.Bb5 (45.Qf5 Qf6 46.Qd5 Ke8 47.Qge4 Be5 48.Qg8 Kd7 49.Qb7 Bc7 50.Bb5 Kd6 51.Qc6 Ke7 52.Qc7) 45...g4 46.Qe8 (46.Qh8 Qe6 47.hg4 hg4 48.Qh7 Kf8 49.Qg4 Be5 50.Qe6 Bd4 51.Qhf7) 46...Kg7 47.Qh5 g3 (47...Qh2 48.Qh2 g3 49.Bh6 Kf6 50.Qg5 Ke6 51.Qg8 Kf6 52.Bg5 Kf5 53.Bd7) 48.Qg3 Qg3 49.fg3 Bd6 (49...Bc7 50.Bh6 Kf6 51.Be8 Ke7 52.Bg5 Ke6 53.Qg6) 50.Bd7 (50.Bh6 Kg8 51.Qg6 Kh8 52.Qg7) 50...Kf6 (50...Bc7 51.Be6 Bf4 52.Qf7 Kh6 53.Bf4) 51.Bg5 Kg7 52.Be6 Bg3 53.Qh6 1-0. jhonores (2205) - DanSah12 (2290), Hourly SuperBlitz Arena, lichess.org, 2020.

9.c5 b6 10.0-0+= bc5 11.dc5 (11.bc5 Nc6 12.Bb5+=) 11...c6 (11...a5 12.b5=) 12.a4 (12.Nc3!?+=) 12...Nbd7 (12...Na6 13.Ba6 Ba6 14.Re1=) 13.Qc2 Bb7 (13...Rb8 14.b5 Ne4 15.Bg7 Kg7 16.Nbd2 Ndc5 17.Ne5+=) 14.b5 (14.Bd4!?=) 14...Qc7 (14...Rc8 15.bc6 Rc6 16.Bd4 Nc5 17.Nc3–/+ (17.Bc5?? Ne4-+)) 15.Bd4 Ne4 16.Bg7 (16.Nc3 Nec5 17.Rab1 Rfe8+=) 16...Kg7–/+ 17.Nbd2 Nec5 18.Rfe1 Ne6 (18...Rfe8 19.Qc3 Kg8 20.Rac1–/+) 19.Rab1? (better is 19.bc6!? Qc6 20.Qb2 Nf6 21.Ra3+=) 19…c5-+ 0–1. Labahn,Wolfgang – Gehrmann,F, Espelkamp, 1980.

9.c5 b6 10.Nc3 bc5=+ 11.bc5 c6 (11...Nc6 12.0-0=+) 12.0-0+= Qa5 (12...Nbd7 13.Bd3=) 13.Qd2 (13.Ne5 Nfd7 14.f4 Ne5 15.fe5 Nd7+=) 13...Ba6 (13...Nbd7 14.Rad1 Re8 15.Rfe1=) 14.Rfe1 Qc7 15.Rad1 (15.h3 Re8+=) 15…Be2 ½–½. Feldman,Yevgeny – Privman,Boris (2190), Manhattan CC–ch, 1999.

9.c5 c6 10.0-0 Re8 11.Nbd2 Bf5 12.Re1 Nbd7 13.Nh4 Be6 14.b5 (14.Bd3!?=) 14...Ne4+= 15.Nhf3 f5 (15...Nec5 16.Qc1 Na4 17.bc6+=) 16.a4 (16.Rb1!?=) 16...Ndc5 17.bc6 bc6 18.Ne4 (18.Rc1 Qb6 19.Ba1 Nd7–/+) 18...Ne4 (18...de4 19.Ne5 Be5 20.de5 Qd1 21.Red1–/+) 19.Qc2 Rc8 20.Rec1 c5 21.dc5 (21.Bb5!? Bd7 22.dc5 Rc5 23.Qb3 Bb5 24.ab5–/+) 21...Rc5-+ (21...Nc5?! 22.Bg7 Kg7 23.Bb5+=) 22.Qb1 (22.Qb3 d4 23.Qa3 Rc1 24.Rc1 d3 25.Bg7 de2–/+ (25...Kg7?! 26.Bd3 Bd5 27.Bb5+=)) 22...Rc1 23.Qc1 Qc8 24.Bg7–/+ Qc1 25.Rc1 Kg7 26.Rc7 Kf6 27.Ra7 h6 28.g3 Rc8 29.Bd3 Rc3+= 30.Be4 fe4-+ 31.Nd4 Bh3 32.f4 ef3 33.Kf2 Ke5?? 34.Nf3= Kf6 35.Ra6 Kf7 36.Ne5+/- Kg7 37.Rg6 Kh7 38.Rd6 Rc2 39.Ke3 Bg2? 40.Rd7 Kg8 41.a5 Ra2 42.Ra7 Bh1 43.a6 Rh2 44.Ra8 Kg7+/- 45.a7?? d4!-+ 46.Kd4 Ba8 47.Kc5 Rh5 48.Kd6 Rg5 49.g4 Bh1 50.Ke6 Bg2 51.Kd6 Bh1 52.Ke6 Ba8 53.Kd6 Re5! 54.Ke5 Kg6 55.Kd6?? Kg5-+ 56.Kc7 Kg4 57.Kb8 Bd5 58.Kc7 1–0. bluepiramid2 (1695) – agneto (1645), kurnik, 2011.

9.c5 c6 10.0-0 Bg4 11.Nbd2 Re8 12.Re1 Nbd7 13.h3 Bf5 14.Nh4 Be6 15.Nhf3 Qc7 16.Bf1 Bf5 17.Qb3 Qf4 18.g3 Qc7 19.Bg2 Ne4 20.Ne4 Be4 21.Nd2 Bg2 22.Kg2 Nf6 23.Qd3 Bh6 24.Nf1 Ne4 25.a4 f5 26.Bc1 Bc1 27.Rac1 f4 28.g4 f3 29.Kh1 (29.Kg1 Ng5 30.Kh1 Qf4) 29...Nf2 0–1. Gerold,Guenter – Klatt,Theodor, Bad Neustadt, 2000.

9.c5 Nc6 10.b5 Ne7 11.Ne5 Nf5 12.Nd2 (12.0-0 Re8=) 12...Ne4 13.Ndf3 (13.0-0 Nd2 14.Qd2 Re8=) 13...b6 (13...f6 14.Nd3=) 14.0-0 Re8 15.Rc1 h5 (15...a6 16.Re1=) 16.Nc6 (16.Re1 a6+=) 16...Qf6= 17.Nfe5 Bh6 18.Rc2 Bf4 (18...Kg7 19.Nb4 Be6 20.Re1+=) 19.g3 Bh6 20.Qd3 Ng7 (20...a6 A) < 21.ba6 Ba6 (21...Ra6? 22.Nb4+-) 22.Qd1 bc5=+; B) 21.f3 Neg3 22.hg3 Ng3 23.Ra1–/+) 21.Qf3 (21.f3 Ng5 22.Qb3 Bf5+=) 21...Qe6 (21...Qf3 A) < 22.Nf3 Nd2 23.Bc1 Bf5=+ (< 23...Nf1 24.Bh6 Bf5 25.Rb2+/-); B) 22.Bf3 a6 23.Nb4+/-) 22.Bc1 (22.Re1 a6 23.cb6 cb6 24.ba6 Ba6 25.Ba6 Ra6+/-) 22...Bc1 23.Rfc1 (23.Rcc1 Nd2 24.Qf4 Nf1 25.Bf1 g5 26.Qg5 f6-+) 23...Nf5 (23...bc5 24.dc5 Qf5 25.Qf5 Bf5 26.f3+=) 24.cb6 ab6 25.Qd3 Ra3?? (26.Qa3 Nd4 27.Nd4 Qe5+-; better is 25...h4+=). Schweber,Samuel (2375) – Spangenberg,Hugo (2220), Buenos Aires op GP3, 1991.

9.c5 Ne4 10.0-0 b6 (10...a5 11.b5+=) 11.Nc3= bc5 12.bc5 Nc6 13.Qa4 (13.Bb5!? Ne7 14.Qe2=) 13...Rb8–/+ 14.Rab1 Bf5 15.Nd1? (15.Bb5!?–/+) 15...Ng5-+ 16.Rc1 (16.Ng5 Bb1 17.Qc6 Qg5-+) 16...Re8 (better is 16...Rb2 17.Nb2 Nf3 18.Bf3 Nd4-+) 17.Ne3?? (better is 17.Ne5 Ne5 18.de5 Be5 19.Be5 Re5 20.Ne3-+) 17...Rb2 18.Ng5 Re2 19.Qc6 R8e3 20.Nf7 Qe8 21.Qd5 Be6 22.Qb7 Bf7 23.fe3 Qe3 24.Kh1 Bd4 25.Qc7 Qe7 26.Qe7–/+ Re7 27.Rfd1 Be3 28.Rc3 Ba2 29.c6 Bb6-+ 30.Rf3? Bd5 31.Rf6 Re2 32.h4 Bg2 33.Kh2 Bc6 34.Kg3 Ba4 35.Rc1 Kg7 36.Rd6 Re7 37.h5 Bc7 38.Rc7 Rc7 39.Kg4 gh5 40.Kh5 Rc5 41.Kg4 Rc7 42.Kh5 Bc2-+. Efimov,I (2490) – De la Villa Garcia,J (2460), Open Saint Vincent ITA, 1999. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.c4 ed4 8.ed4)

9.c5 Ne4 10.Nc3 Bg4 11.Ne4 de4 12.Ne5 Be2 13.Qe2 Nc6 14.Qe4 Nb4 15.0-0 Qd5 16.Qd5 Nd5 17.c6 b6 18.a4 a6 19.a5 b5 20.Rac1 Rfe8 21.g3 Rad8 22.Nd7 Re2 23.Ba1 Nb4 24.d5 Nd5 25.Rfd1 Nb4 26.Kf1 (26.Bg7!? Kg7 27.Rd4 Na2-+) 26...Re6-+ 27.Nc5 Rd1 28.Rd1 Rc6 29.Rd8 Bf8 30.Bc3 Nc2 (30...Rc5 31.Rf8 Kf8 32.Bb4=) 31.Ne4 (31.Bd2 Kg7 32.Bc3 f6 33.Rd7 Kg8 34.Ne4–/+) 31...f5 32.Nf6 Kf7 33.Bb2 Be7 (33...Rf6?! 34.Bf6 c5 35.Bg5+=) 34.Rd7 Ke6 (34...Ke6 35.Re7 Ke7 36.Nh7 Re6-+; worse is 34...Rf6 35.Rc7 Nb4 36.Bf6 Kf6 37.Ke2-+) 0–1. Hess,Christian Mathias (2280) – Taboas Rodriguez,Daniel (2285), Benidorm op U2300, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.ed4 d5)

9.c5 Bf5 10.0-0 c6 11.Re1 Qc7 (11...Re8 12.Nbd2=+) 12.Nbd2 (12.Bd3 Bd3 13.Qd3 Nbd7=) 12...Nbd7 13.Nf1 (13.Nh4 Be6=) 13...Ne4 14.Qb3 White prepares b5 (14.Ng3 Be6=) 14...Rae8 (14...Rfe8 15.Ng3=+) 15.a4 White prepares the advance b5 (15.Rad1 Be6=+) 15...Re7 16.Ne3 Be6 17.b5 f5 (17...Rfe8 18.a5=+) 18.b6 (18.a5 a6 19.bc6 bc6=) 18...Qb8 (18...ab6 19.cb6 Qb6 20.Qb6 Nb6 21.Ba3–/+) 19.ba7=+ Qa7 20.a5 f4 (better 20...Qb8=+) 21.Nc4? (better 21.Nc2=) 21...dc4-+ 22.Bc4 Bc4 23.Qc4 Kh8 24.Ng5 Nd2?? (better 24...Ne5 25.de5 Ng5-+) 25.Qb4+- Rfe8 (25...Re1 26.Re1 Nf6 27.Qd2+-) 26.Qd2 h6 (26...Nf6!? 27.Re7 Re7 28.Qf4+-) 27.Nf7!+- Kh7 (27...Rf7 28.Re8 Pinning (28.Re8 Deflection)) 28.Nd6 Re1 29.Re1 Re1 30.Qe1 Nf6 31.Qd2 (31.h4 Nd5+-) 31...Qa6? (better 31...Nd5+-) 32.d5+- cd5 (32...Nd5?? 33.Ne8 Qc4 34.Ng7+- (34.Bg7?! Qe4 35.h3 Qe8+=)) 33.h4 (33.Qf4?! Qe2 34.Qc1 Ne4 35.Ne4 Bb2+=) 33...Ne4?? (better 33...Nh5 34.Bg7 Ng7 35.Qd5 Qa5+-) 34.Ne4 Bb2 35.Qd5 (better 35.Qb2 de4 36.Qb6+-) 35...Qa5?? (35...Bg7+-) 36.Qb7 (36.Qb7 Kg8 37.c6+-) 1–0. Papadopoulos,Panay (2170) – Stergiou,G (1830), 6th Ideon Andron Op, 2017. (=1.e3 d6 2.Nf3 Nf6 3.b4 g6 4.Bb2 Bg7 5.c4 e5 6.d4 ed4 7.ed4 0-0 8.Be2 d5)

9.c5 Bf5 10.0-0 Ne4 11.Nc3 Re8 12.Re1 (12.a3 c6+=) 12...Nc3 (12...Nc6!? 13.a3 a6+=) 13.Bc3= Nd7 14.Qb3 Nf6 (14...c6 15.b5=) 15.Bb5 (15.Ne5 Ne4=) 15...Re1 16.Re1 c6 17.Bf1 Ne4 18.Bb2 Qf6 19.Re2 (19.Qa3 Bg4+=) 19...Bg4 20.Re3 (20.h3 Bf3 21.Qf3 a5+=) 20...Bf3 (20...Bh6 21.Re1+=) 21.Rf3 Nd2 22.Rf6 Nb3 23.Rd6 (23.Rf4 Nd2–/+) 23...Nd4 24.Rd7 Rb8 25.Bc1 Ne6 26.g3 Kf8 27.Bh3–/+ f5 28.Bf4 Nf4 29.gf4 Kg8 30.Bg2 a6 31.a4 Bh6 32.b5 ab5 33.ab5–/+ Bf4 34.Bf1 Be5-+ 35.h4 Bd4 36.h5 Bc5 37.Bg2 g5 38.h6 Bf8 39.Kf1 Bh6 40.bc6 bc6 41.Rd6 Bf8 42.Rc6 d4 43.Rc7 Rd8 44.Ke1 g4 45.Bc6 f4 46.Bd7 g3 47.fg3 fg3 48.Be6 Kh8 49.Bf5 Bg7 50.Ke2 Rf8 51.Rc5?? Re8 52.Kf3 Be5 53.Kg2 Re7 54.Bd3 Kg7 55.Kh3 Kf6 56.Rc6 Kg5 57.Rc1 Re6 58.Kg2 h5 59.Rf1 Bf4 60.Rb1 h4 61.Rb5 Be5 62.Ra5 Kf4 63.Ra3 Rb6 64.Ra2 h3! 65.Kf1 Rc6 66.Ke2 h2 (66...h2 67.Ra4 h1Q 68.Bc4 Qf3 69.Kd2 g2 70.Ra7 Qc3 71.Ke2 Qc2 72.Ke1 g1Q 73.Bf1 Qg3#) 0–1. Vaglio Munoz,Jaime – Minero Pineda,Sergio, CRA–chT Costa Rica, 1998.

10.Bc4 c6 11.a4 Nd5 12.Qb3 Nb6 13.Nbd2 Nc4 14.Nc4 Be6 15.Qc2 Nd7 16.Rad1 Bc4 17.Qc4 Nb6 18.Qc2 Nd5 19.Qb3 Qd6 20.b5 cb5 21.Qb5 Rfd8 22.Rfe1 Qb6 23.Qe2 Qb4 24.Ra1 Rac8 25.Ba3 Qb3 26.Ne5 Re8 27.Reb1 Qa4 28.Bc5 Be5 29.Ra4 Bh2 30.Kh2 Re2 31.Rb7 Rf2 32.Raa7 h5 33.Kg3 Rf5 34.Ra3 Re8 35.Bd6 Ne3 36.Rb8 Rb8 37.Bb8 Ng4 38.Ra8 Kg7 39.Ra3 Rd5 0–1. Dobrzhanskaya,I (2085) – Tomilova,E (2275), 4th Open C Women, Moscow RUS, 2008. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.c4 e5 7.Be2 ed4 8.ed4)

10.Bc4 Nc6 11.Re1=.

10.Bc4 Qd6 11.Qb3 Ne4 12.Ne5 Qf6 13.Nc3? Nd2 14.Qc2 Nf1 15.Nd5 Qd6 16.Rf1 Be6 17.Qb3 c6 18.Ne3 Bc4 19.N3c4 Qd5 20.h4 Nd7 21.Qc2 Ne5 22.Ne5 a5 23.ba5 Ra5 24.a3 c5 25.Nc4 Rb5 26.Ne3 Qb3 0–1. Verbeke – Polarski, Belgium 1987.

10.Bc4 Nbd7 11.Bb3 Nb6 12.Re1 Nbd5 13.a3 Bg4 14.Nbd2 (14.h3 Be6=) 14...c6 (14...Re8 15.Re8 Qe8 16.Nc4=) 15.h3 Be6 16.Nc4 a6 (16...Nf4 17.Nfe5=) 17.Nfe5 Re8 18.Qf3 Re7 19.Nd3 (19.Bc1 Nh5=) 19...Nc7= 20.Nf4 Nfd5 21.Ne6 Ne6 22.Ne5 Qd6 23.Qg3 Rd8 24.Rac1 f6 25.Nd3 Qg3 26.fg3 Rde8 27.Re2 f5 28.Rce1 Bf6 29.Ne5 Kg7 30.Kf2 Ng5 31.Bc2 Ne6 32.Bb3 Ng5 ½–½. Ruiz Romero,Zenon – Esnaola San Sebastian,Jon (2195), AEAC W/C/006, 2007. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.ed4)

10.Bc4 Nbd7 11.Nc3 Nb6 12.Bb3 Nfd5 13.Nd5 (13.Ne5 Nb4 14.Ne4 Be6=) 13...Nd5+= 14.b5 (14.Re1 Nb4 15.Ne5 Be5 16.Re5 Qd6=) 14...Be6 (14...a6 15.ba6 Ra6 16.Ne5+=) 15.Ne5 (15.Re1 a6 16.a4 ab5 17.ab5 Ra1 18.Qa1 Nf4=) 15...Qg5 (15...a6 16.ba6 Ra6 17.Qf3+=) 16.Qf3= Rfd8 17.Rfe1 (17.Rac1 Qf6=) 17...Qf5 (17...a6 18.ba6 Ra6 19.Rac1+=) 18.Qf5 Bf5 19.Rac1 Rac8 20.Rc5 (20.g3 Bf8=) 20...Be6 21.g3 Bf8 22.Rcc1 Re8 23.Re2 (23.Nd3 Nb4 24.Nb4 Bb4 25.Be6 Re6 26.Re6 fe6=) 23...Nb4 24.Be6 Re6 25.a3 (25.Kf1 Nd5=) 25...Nd5 26.Kf1 a6 27.ba6 Ra6 28.Nc4 c6 29.Rcc2 Rca8 30.h4 h5 31.Kg2 Nb6 32.Ne3 (32.Nd2 Ra5+=) 32...Rd8 (32...Ra5 33.Nc4 Nc4 34.Rc4+=) 33.Red2 (33.Re1 Na4+=) 33...Ba3 34.Ba3 Ra3 35.Rb2 Re3 0–1. Kaenel,H – Hochstrasser,M, Winterthur, 1996.

10.Bc4 Be6 11.Be6 fe6=.

9.Qb3 c5 10.0-0 cb4 11.Qb4 Nc6 12.Qb3 Re8 13.Bd3 (better is 13.Re1!?=) 13...Ng5–/+ 14.Nbd2 Nf3 15.Nf3 Bg4 16.Rae1 Bf3 17.Re8 Qe8 18.gf3 Qe7 19.Be4 Nd4 20.Bd4 Bd4 21.Qb7 Qg5 22.Kh1 Rf8 23.Qd5 Be5 24.Rg1 Qf4 25.Rg2 Rb8 26.Qd3 (26.a4!?–/+) 26...Rb2-+ 27.Qe3 Ra2 28.Qf4 Bf4 29.h4 a5 30.h5 (30.Rg4 Be5-+) 30...Kg7 31.hg6 fg6 32.Rg4 g5 0–1. Mrozinski,Werner – Fuellgrabe,Thomas (2195), Ruhrgebiet VK3, 1999. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 d6 5.d4 0-0 6.e3 e5 7.Be2 ed4)

9.Nbd2 d5 10.0-0 a5 11.b5 Nd7 12.Ne4 de4 13.Nd2 Nc5 14.dc5 Bb2 15.Rb1 Bd4 (15...Be5!? 16.Ne4 Qh4=) 16.Ne4+= f5 17.Nd6 Qf6 18.Nc8 Rac8 19.Bf3 Rcd8 20.Bd5 Kg7 21.Qf3 b6 22.cb6 cb6 23.Rbe1 Rfe8 24.Re2 Re7 25.Re7 Qe7 26.Qd1 Bc5 27.Qa1 Qf6 28.Qf6 Kf6 29.Re1 Rd7 30.Re6 Kg5 31.Kf1 Re7 32.Rc6 Kf4 33.Re6 ½–½. Khurtsidze,N (2420) – Lahno,Kateri (2485), 10th EICC w, St Petersburg RUS, 2009. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 e5 7.Be2 ed4 8.ed4)

9.0-0 a5 10.b5= c6 (10...Nbd7 11.Nc3=) 11.a4 (11.Nc3 cb5 12.Nb5 d5=) 11...d5 (11...Qb6 12.Nbd2 Bf5 13.Nh4=) 12.Nc3 dc4 (12...Be6!? 13.c5 Nbd7=) 13.Bc4+- Be6 14.Qb3 Bc4 15.Qc4 Nd5 (15...Nfd7 16.Rfe1 Re1 17.Re1+=) 16.Rfe1 (16.bc6 bc6 17.Rae1 Re1 18.Re1 Na6+=) 16...Nc3 (16...Re1 17.Re1 Nb6 18.Qe2+=) 17.Bc3+- (17.Qc3?! Re1 18.Qe1 cb5 19.ab5 Nd7=) 17...Nd7 18.bc6 bc6 (18...Re1 19.Re1 Nb6+-) 19.Ne5 (19.Re8 Qe8 20.Re1+- (20.Qc6? Rc8 21.Qd5 Rc3-+)) 19...Ne5+= 20.de5 Re6 (20...Qd5!? 21.Qf4 Rad8+=) 21.f4 (21.Rad1!? Qc7 22.f4+-) 21...Qc7 ½–½. Franke,Roland (2010) – Phillips,William (1935), Championship EUR Senior, 2014.

9.0-0 Nc6 10.a3 Bg4 11.Nbd2 Nh5 12.Re1 (12.g3!?=) 12...Nf4+= 13.Rb1 Ne2 14.Re2 Re2 15.Qe2 Nd4 (15...d5!?=) 16.Bd4+= Bd4 17.Re1 (better is 17.Qe4!? Bf3 18.Nf3+=) 17...Bf3 18.Qf3 Qf6 19.Qe2 Be5 20.g3 Re8 21.Kg2 Re6 22.Ne4 Qf5 23.Qd2 Bg7 24.f3 Qe5 25.Rd1 Qb2 26.a4 Qd2 27.Rd2 f5 28.Ng5 Re7 (28...Re1 29.Rc2-+) 29.Kf2 (29.c5 dc5 30.Rd8 Bf8 31.bc5 h6–/+) 29...Bh6 (better is 29...h6!? 30.Nh3 Bc3-+) 30.h4–/+ Bg5 31.hg5 Kf7 32.Rd4 Ke8 33.b5 Kd7 34.Rd1 c6 35.c5 d5 36.Rb1 Kc7 37.a5? cb5-+ 0–1. Havlicek,P (1735) – Kubik,Jar (1985), Ricany Open A, 2011.

9.0-0 Bf5 10.h3 Nbd7 11.a4 Qe7 (11...d5 12.c5=+) 12.Re1= Qf8 13.Nc3 c6 14.g4 Be4 (14...Be6 15.g5 Nh5 16.Bf1=) 15.Ne4 (15.g5 Bf3 16.Bf3 Nh5+=) 15...Ne4= 16.Bd3 f5 17.Nh2 (better 17.g5=) 17...fg4?? (better 17...Ng5 18.Re8 Re8=+) 18.Be4+- Qf4? (better 18...gh3!? 19.Qb3 Qf4 20.Qh3 Re4 21.Qd7 Rf8 22.Re4 Qe4+/-) 19.Qg4 Qf7 20.Bg2 (20.Bd3 Nb6+-) 20...Nf6 21.Qg3 Nh5 (21...Qc4 22.Qd6 Qc2+-) 22.Qd6 (22.Qb3 Nf4 23.Ng4 Ng2 24.Kg2 h5+-) 22...Nf4? (better 22...Bf8!? 23.Re8 Re8+/-) 23.Ng4+- Rad8? (23...Nd3 24.Re8 Re8+-) 24.Re8 Re8 25.Ne5 (better 25.d5!? cd5 26.Bd5 Nd5 27.cd5 Kh8 28.Bg7 Kg7+-) 25...Qf5 (25...Ne2 26.Kh2 Qf4 27.Kh1 Qf2+-) 26.Bc1 (better 26.Qd7 Qd7 27.Nd7+-) 26...Ne2+= 27.Kh1 Qf2 (27...Nd4 28.Ng4 Nb3=) 28.Ng4?? (28.Bh6 Ng3 29.Kh2+=) 28...Ng3 (28...Qg1) 29.Kh2= Nf1 30.Kh1 Ng3 31.Kh2 Nf1 32.Kh1 Ng3 ½-½. jhonores (2225) - mierdensen (2200), Rated Blitz game, lichess.org, 2020.

9.0-0 Bg4 10.Nc3 Nc6 11.b5 Na5 12.Qa4 b6 (12...c5!? 13.bc6 Nc6=+) 13.h3 Bd7 (13...Bf5 14.Rfe1=) 14.Rfe1 a6 (14...c5 15.Rad1=) 15.Qb4 (15.Bd3 c5+=) 15...c5 (15...ab5 16.cb5 Be6 17.Bd3=) 16.bc6+= Nc6 (better 16...Bc6!? 17.d5 Bd7+=) 17.Qd6+- Bf8 18.Qf4 Nb4 (18...Bf5 19.d5 Bd6 20.Qh4+-) 19.Bf1 (19.Rad1 Rc8 20.Ne5 Bd6+-) 19...Bg7 (19...Be7 20.Qd2 Bd6 21.d5+-) 20.a3 Re1 (20...Nc6 21.Re8 Be8 22.Rd1+-) 21.Re1 Nc6 22.d5 (22.Bd3 Qb8 23.Ne5 Ne5 24.de5 Be6+-) 22...Na5 23.Ne5 Be8 24.Na2 (24.Be2 Rc8+-) 24...Nh5 (24...b5 25.Nb4+-) 25.Qf3 Rc8 26.g4 Nf6 27.Nb4 Nc4?? (27...b5+-) 28.Bc4 b5 29.Bb3 a5 (29...Qd6+-) 30.Nec6 Qd6 31.Ne7 (31.Ne7 Kf8 32.Nc8+-) 1–0. Pierre – Porti, internet, 2020.

9.0-0 Bg4 10.h3 Bf3 (10...Bf5!?=) 11.Bf3+= d5 12.c5 (12.Nc3 a5 13.b5 dc4 14.Bb7 Ra7+/-) 12...c6 (12...Ne4 13.Re1 Nc6 14.b5=) 13.a4 (13.Nc3 Ne4=) 13...Ne4 14.Nd2 f5 (14...Na6 15.Re1=) 15.Re1 (15.Ne4 de4 16.Qb3 Kh8=) 15...Nd7 (15...Na6 16.Be4 de4 17.b5=) 16.Be4 fe4 17.Nf1 (17.Qb3!? Nf6 18.b5=) 17...a5+= 18.b5? (better is 18.Qb3!?+=) 18...Nc5!-+ 19.dc5 Bb2 20.Rb1 Bc3 21.Re2 Bb4 22.bc6 bc6 23.Qd4 Qe7 24.Rc2 Qe5 25.Rd1 Rab8 26.Ne3 Qd4 27.Rd4 Ba3 28.Ng4 Kg7 29.Rd1 h5 30.Ne3 Bb2 31.Rb1 Be5 32.Rb6 d4 33.Nc4 Bc7 34.Rb8 Rb8 35.g3 Kf6 36.Rd2 d3 37.f3 Rb4 38.Ne3 Ra4 39.fe4 Re4 40.Rd3 Bg3 41.Nc2 Ke5 0–1. Knight,Timothy (1800) – Yahi,Mohamed Salem (1895), 40th Men Olympiad, 2012.

9.0-0 a6 10.Bd3=.

9.0-0 d5 10.Nc3= dc4 (10...Nc6 11.b5 Na5 12.cd5 Nd5 13.Qa4=) 11.Bc4 Nc6 12.Qb3 (12.b5 Na5 13.Bd3 Bd3 14.Qd3 a6=) 12...a5 (12...Nd4?? 13.Nd4 Bg4 14.h3 Bh3 15.Rad1+- (15.gh3?! Qd4 16.Nd5 Qh4+-)) 13.a3 Ne4 (13...Nh5 14.Nb5 Nf4 15.Rfd1 ab4 16.ab4 Ra1 17.Ra1=) 14.Ne4+= Be4 15.Ne5 Ne5 16.de5 a4 (16...Qg5 17.f3 a4 18.Qc3+=) 17.Qe3+/- Bf5 18.Rac1 Qe7 19.e6 (19.Bd4!?+/-) 19...Be6= 20.Bg7 Kg7 21.Be6 Qe6 22.Qe6 (22.Rc7 Qe3 23.fe3 b5=) 22...fe6 23.Rc7 ½–½. Nicholls,Mervyn C (2310) – Bormida,Adolfo A (2345), corr Pappier mem–B email, 1998.

9.0-0 Nbd7 10.Bd3 Bd3 11.Qd3 Re8 12.Nbd2 c6 13.Rfe1 Qc7 14.Rac1 Re1 15.Re1 Re8 16.Re8 Ne8 17.Qa3 a6 18.Ng5 h6 19.Ngf3 Nef6 20.Qd3 d5 21.h3 (21.c5 Qf4=) 21...Qf4 (21...dc4 22.Nc4 Nd5 23.a3=) 22.Ne5 Ne5 23.de5 Nd7 24.e6 (24.cd5 Ne5 25.Be5 Be5 26.dc6 bc6=) 24...fe6 25.Qg6 Qg5?? (better 25...Nf6 26.Bc3 Qg5=) 26.Qe6+- Kh8 (26...Kf8 27.Nf3 Qd8 28.Qd6 Kg8 29.Bg7 Kg7+-) 27.Qe8 Kh7 28.Qd7 (28.Qd7 Qg6 29.Qb7+-) 1–0. Janek – Ccvmep, internet, 2019.

9.Nc3 Re8 10.0-0 c6 11.Bd3 Bg4 12.h3 Be6 13.Qc2 d5 14.c5 Na6 15.a3 b5 16.Ne5 Qc7 (16...Qc8 17.Nc6 Qc6 18.Bb5+/-) 17.Rae1 (17.Nb5 cb5 18.Bb5 Nb8 19.Be8 Ne8+/-) 17...Nh5 (17...Nd7 18.f4+=) 18.f4 (18.Nb5!? cb5 19.Bb5+/-) 18...Bc8 (18...Ng3 19.Rf3 Nf5 20.Nb5 cb5 21.Bb5+/-) 19.g4 White prepares f5 19...Nf6 20.f5 g5 21.Bc1 h6 22.Re2 1-0. dannysmet (2085) - samushonga (2040), Rated Blitz game, lichess.org, 2021.

9.0-0 Nc6 10.Re1 Nb4 11.Qb3 Nc6 12.Nbd2 b6 13.Rad1 Rb8 14.Qa4 Na5 15.Bc3 Nb7 16.c5 d5 17.cb6 ab6 18.Ne5 Ra8 19.Qc2 Be2 20.Re2 Nd6 21.Nc6 Qd7 22.Bb4 Nde4 23.Ne4 Ne4 24.Bf8 Rf8 25.f3 Nd6 26.Ne5 Qb5 27.Rb1 Qa6 28.Rbe1 Nf5 29.Qc7 Nd4 30.Rb2 Qa5 31.Qb6 Qe1 0–1. Chess4Win (1730) – granbeduino (1685), lichess.org, 2019.

9.0-0 d5 10.c5 Re8 11.Nbd2 Nbd7 12.Re1 Nf8 13.Nf1 Ne6 14.Ne3 Bh5 15.h3 Nf4 16.Bf1 Bf3 17.Qf3 Ne6 18.Bd3 (18.Nc2 Ne4=) 18...c6 19.a4 (19.Nc2 Qc7=) 19...Ne4 (19...a5 20.ba5 Ne4 21.Nc2 N6c5 22.dc5 Bb2 23.Ra2–/+) 20.Be4 (20.Nc2 Qh4=) 20...Ng5 (20...Nd4!? 21.Bd4 de4=+) 21.Qd1= Ne4 22.Re2 h5 (22...Rb8 23.Qc2=) 23.Ra3 Re6 24.Rb3 (24.a5 Qg5=) 24...Qe7 25.b5 Re8 26.Nc2 (better 26.Qd3!?=) 26...Nc5–/+ 27.Re6 Ne6 28.bc6 bc6 29.Nb4 (29.Ba3 Qf6 30.Qe1 Qf5–/+) 29...Qd6 30.Nc2 Rb8 31.Qd3 (31.Ba3!? Qf4 32.Bc1–/+) 31...Qd8 32.Rb8 Qb8 33.Qa3 c5! 34.Qa1 (34.dc5 Bb2 Pinning (34...Bb2 Deflection)) 34...Qb3 (34...Qb3 35.Qc1 Qa4 36.dc5 Nf4-+) 0–1. Verstraeten,Roeland – Van Seters,Frits, Belgian championship, 1966.

9.0-0 d5 10.h3 Bf3 11.Bf3 (11.gf3? Nh5 12.Qd2 Qh4-+) 11...c6 (11...Nc6 12.b5 Na5 13.Na3=) 12.Nd2 Nbd7 13.Qb3 dc4 14.Nc4 Nb6 15.Ne5 Nfd5 (15...a6 16.Rfe1+/-) 16.a4 (16.b5 cb5 17.Qb5 Qd6+/-) 16...Nd7 (16...Be5 17.de5 Qh4 18.a5+/-) 17.Nd3 (17.b5 Re8 18.Rfe1 Rc8+/-) 17...N7f6 18.Rac1 Qd6 (18...Re8!?+=) 19.b5+/- cb5 20.ab5 Rac8? (better is 20...Rfe8+-) 21.Ba3 Qd7 22.Bf8 Rf8 23.Ne5 Qd6 24.Rfd1 Nf4 25.Bb7?? Ne2+= 26.Kf1 Nc1 27.Rc1 Qd4 28.Nf3 Qb6 29.Ba6 Ne4+= 30.Qe3?? Ng3!!-+ 31.Ke1 Qa5 32.Nd2 Nf5 33.Qe2?? Bh6-+ 34.Rd1? Rd8 35.g4 Nd4 36.Qe4 Nb5 37.Kf1 Nc3 38.Qc4 Nd1 39.Ne4 Qb6 40.Qe2 Rd7 41.g5 Bg7 42.Nf6 Bf6 43.Qe8 Kg7 44.gf6 Kf6 45.Qd7 Qf2 0–1. Koerner,He (1935) – Jeremic,Nemanja, Berlin GER, 2012.

9.0-0 Re8 10.Nc3 Nc6 11.b5 Ne7 12.h3 Bf5 13.Re1 c6 14.a4 a6 15.Qb3 Qd7 16.Bf1 h6 17.Rad1 g5 18.Ne5 Qc8 19.Nd3 Ng6 20.Re8 Ne8 21.Nb4 a5 (21...ab5 22.ab5 g4 23.hg4 Bg4 24.f3=) 22.Nc2+= Nh4 23.Ne1 Nf6 24.Ne2 Qd7 (24...cb5 25.Qb5 Qc6 26.Nc3=) 25.Ng3 (25.g3 cb5 26.gh4 bc4 27.Qc4 Bh3 28.Bh3 Qh3 29.Qc2 Qh4 30.Ng2=) 25...Bg6 26.Nf3 Re8 (26...cb5 27.ab5 a4 28.Qa3=) 27.Ne5+= Qc7 (27...de5 28.de5 Decoy) 28.Ng6 fg6 29.Bc3 Nd7 30.c5 Kh7 (30...d5 31.Qb2+/-) 31.cd6 Qd6 32.Ba5 Nf6 33.bc6 bc6 34.Bb4 Qb8 35.Qa3 Nd5 36.Bc5 Bf8 37.a5 Bc5 38.Qc5 Ne3 39.Re1 Nf1 (39...Nd5 40.Rc1+-) 40.Re7 (40.Kf1?! Re1 41.Ke1 Ng2 42.Kf1 Nf4=; 40.Rf1?! Qa8+-) 40...Re7 41.Qe7 Kg8 42.Qe6 (42.Kf1 Qb1 43.Qe1 Qd3 44.Kg1 Qd4 45.Qe8 Kg7 46.Qe7 Kh8+-) 42...Kg7 43.Qe7 (43.Kf1 Qb5 44.Kg1 Kf8+-) 43...Kg8 44.Nf1 (44.Kf1 Qb1 45.Qe1 Qd3 46.Kg1 Qd4 47.Qe8 Kg7 48.Qe7 Kh8+-) 44...Nf5 (44...Qb5 45.Qe8 Kh7 46.Qf7 Kh8 47.g3+-) 45.Qe6 Kg7 46.Qd7 Kf8 47.a6 (47.a6 Ne7 48.a7+-) 1–0. Barcza,Gedeon – Opocensky,Karel, Leipzig Inter 1st, 1965. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.ed4)

9.0-0 Re8 10.Nbd2 Nbd7 11.h3 Bf3 12.Bf3 c6 13.Re1 Qc7 (13...Re1 14.Qe1 d5 15.a3=) 14.Qc2 Re1 15.Re1 Re8 16.Re8 Ne8 17.Nb3 Nef6 18.a4 White plans b5 18...Qd8 19.b5 Nb8 20.Bc1 Qe7 (20...d5 21.Be3+=) 21.Bf4 Ne8 22.Qd2 cb5 23.ab5 b6 24.Qa2 g5 25.Be3 f5 (25...h6 26.Qd2+-) 26.c5 (26.Bd2 h6+-) 26...Kh8 (26...f4 27.Bd2+-) 27.c6 f4 28.Bd2 Nf6 (28...Qf7 29.Bb4+-) 29.d5 (better 29.Qc2 Qc7 30.Qf5+-) 29...h5? (better 29...Ne8+-) 30.Nd4 g4 31.Ne6 gf3 32.c7 (32.Bf4?! Ne8 33.Bg5 Qf7+-) 32...Qe8 33.Qa7 (33.cb8R?! Qb8 34.Bc3 Qe8+-; 33.cb8Q?! Qb8 34.Bc3 Qe8+-) 33...Nd5 (33...Nbd7 34.Qb7 Kh7+-) 34.cb8Q (worse 34.cb8B Qe6 35.Qa3 Qe2 36.Qf3 Qf3 37.gf3 Be5=+; 34.Qb8?! Nc7 35.Qe8 Ne8 36.Bf4 d5+-) 34...Qc8 (34...Nc7 35.Qac7 Bf8 36.Qe8 fg2 37.Qf8) 35.Qg7 1–0. Pierre – Munsbit, internet, 2020.

9.0-0 Nf4 10.Re1 Bg4 11.h3 Ne2 12.Qe2+= Bf3 13.Qf3 Nc6 14.Na3 Nd4 15.Bd4 Bd4=+ 16.Rad1 Qf6 17.Nb5 Qf3–/+ 18.gf3 Bb6 19.a4 a5 20.c5 dc5 21.bc5 Bc5 22.Nc7 Rad8 23.Nd5 Kg7 24.Kf1 Rfe8 25.Re8 Re8 26.Rb1 Rd8 27.Ne3 b6 28.Nc4 Rd4 29.Rc1 h5 30.Kg2 Kf8 31.Rc2 Ke7 32.Na5 ba5 33.Rc5 Ra4 34.Rc7 Ke6 35.Ra7 Ra1 36.Kg3 a4 37.Kf4 a3 38.Ra6 Kd5 39.Kg5 Kc4 40.Kf6 Kb3 41.Kf7 Rh1 42.Rb6 Kc2 43.Ra6 Kb2 44.Rb6 Ka1 45.Kg6 Rh3 46.f4 Rf3 47.f5 h4-+ 48.f6 h3 49.Rb5 a2 50.f7 h2 51.Rh5 Kb2 52.Rb5 Ka3 53.Rf5 Rf5 54.Kf5 h1Q 55.f8Q–/+ ½–½. Massana,Jorge (2240) – Nilssen,John Arni (2235), Moscow ol (Men), 1994.

9.Qd2= Re8 10.0-0 (10.Nc3 Bg4 11.0-0 Nc6=) 10...c6 (better is 10...Nf4! 11.Qf4 Re2+=) 11.Nc3+= Na6 12.b5 Nc7 13.a4 (13.Rfe1 Ne6+=) 13...a6 (13...Ne6=) 14.b6 (better is 14.Rfe1!?+=) 14...Ne6+= 15.a5 f5 (better is 15...Nef4!?+=) 16.Rfe1+= Bd7 17.Bf1 Nf6 (17...Qf6 18.Rad1 Qf8 19.g3+=) 18.Ba3 (18.h3 d5+=) 18...d5 (18...c5 19.d5 Nd4 20.Re8 Qe8+=) 19.c5 (better is 19.cd5!? cd5 20.Ne5+=) 19...Ne4–/+ 20.Qe3 Qf6 21.Ne2 g5 22.Ne5 Bc8 23.Rac1 Nd4!–/+ 24.Nd4 Re5 25.Bb2 Re8?? 26.Qd3?? Qg6 27.Rc2? g4–/+ 28.g3 Bd7-+ 29.Bg2 Bf6 30.Bc1 Re7 31.Bf4?? Nc5!-+ 32.Qd2 Re1 33.Qe1 Bd4 34.Qd1 Ne6 35.Re2 Bc3 36.Qa4 Qg7 37.Bd6 Re8 38.Re3 Bd4 39.Re1 h5 40.Bf1 c5 41.Qa2 c4 42.Bb4 f4 43.Qc2 fg3 44.hg3 Qf6 45.Bg2 Bc6 0–1. Kasper,Peter – Neubert,Fritz, corr DDR–ch, 1986.

9.Qc3 cb4 (9...Nc6 10.b5 Ne5 11.Ne5 de5 12.Nd2+=) 10.Qb4+= Nc6 (10...Na6 11.Qa3+=) 11.Qb3 (11.Qa3 Ne4+=) 11...Be6 (better is 11...Ne4 12.0-0 Nc5+=) 12.Ng5?? (12.0-0 b5 13.Nbd2 Na5–/+) 12...Bf5 (better is 12...Qa5 13.Nd2 Qg5-+) 13.Nc3+= (13.Qb7?? Rb8 14.Qc6 Rb2-+) 13...Na5 (13...Nd7 14.Nge4 Re8 15.Nd6 Nc5 16.Nb7 Nb7 (16...Nb3?! 17.Nd8 Na1 18.Nc6=) 17.Qb7 Rb8 18.Qc6 Rb2-+) 14.Qa4 (14.Qb4+=) 14...Ne4 (better is 14...Nd7 15.Nf3 Rc8–/+) 15.Nge4+= Be4 16.f3 (better is 16.Ne4!? Bb2 17.Rd1+=) 16...Bf5+= 17.e4 (better is 17.Qb4!? Qb6 18.Qb6 ab6 19.Rd1–/+) 17...Be6-+ 18.Rb1 (18.Nd1 Bb2 19.Nb2 Nc6–/+) 18...Rc8 19.Nd5 b6?? (better is 19...Bd5 20.ed5 b5-+) 20.0-0 (20.Bg7 Kg7 21.0-0 Qd7=) 20...Qg5 (20...Bb2!? 21.Rb2 Bd5 22.cd5 Qc7=) 21.f4+= Qd8 22.Bd3 (22.Bg7 Kg7 23.f5 Bd5 24.cd5 Qg5+=) 22...Bd5 23.cd5 Bb2 24.Rb2 Qf6 25.e5 (better is 25.Rbf2!?=) 25...de5–/+ 26.Rd2 ef4 (26...Rfd8 27.Be2–/+) 27.Rf4 (27.Qf4 Qf4 28.Rf4 Rfd8–/+) 27...Qc3 (27...Qd6 28.Ba6 Rc1 29.Rf1 Rf1 30.Bf1–/+) 28.Rd1 (28.Qb4 Qe5 29.Qd4 Qd6–/+) 28...Qe5 (28...Rfd8 29.Rf2–/+) 29.Bb5 (29.Ba6 Qe3 30.Kh1 Rc1–/+) 29...Qe3 (29...Rfd8 30.Re4 Qd6–/+) 30.Kf1 (better is 30.Rf2!?+=) 30...Rc1-+ 31.Rfd4 (31.Rc1 Qc1 32.Kf2 Qc5 33.Rd4 Rd8-+) 31...Rfc8 32.R4d2 0–1. Kucharkowski,Jens – Renitzsch, Freital, 1987.

9.bc5 Qa5 10.Qc3 Qc5 11.0-0 Nbd7 12.Rd1 Nb6 13.Qd3 Be6 14.Qd6 Qd6 15.Rd6 Rfc8 16.Rd1 Bc4 17.Bc4 Nc4 18.Bd4 Ne4 19.Bg7 Kg7 20.Nbd2 Ncd2 21.Nd2 Nc3 22.Re1 b5 23.Kf1 Rc7 24.Nb3 Rac8 25.Nd4 a6 26.Rec1 Na4 27.Rcb1 Kf6 28.Ke1 h6 29.Kd2 Nc3 30.Rb3 Ke5 31.Ra3 Na4 32.h4 f5 33.g3 h5 ½–½. Wolf – Kuntermann, corr DDR 1980.

9.bc5 dc5 10.Qd8 Rd8+=.

9.Qc3 b6 10.0-0 Bb7 11.Rd1 Nh5 12.Qb3 Bb2 13.Qb2 Qf6 14.Nc3 Rfe8 15.a3 Ne5 16.Ne5 Qe5 17.Bh5 Qh5 18.Nd5 Bd5 19.Rd5 Re5 20.Rad1 Rae8 21.h3 Kf8 22.Qd4 Qe2 23.Re5 Re5 24.Qd3 Qd3 25.Rd3 Re4 26.Rd4 f5 27.Re4 fe4 28.f4 ef3 29.gf3 a5 30.b5 Ke7 31.e4 g5 32.Kf2 Kf6 33.a4 Ke5 34.Ke3 h5 35.h4 g4 36.fg4 hg4 37.h5 Kf6 38.Kf4 g3 39.Kg3 Kg5 40.Kf3 Kh5 41.Ke3 Kg5 42.Kd4 Kf6 43.Kd5 Ke7 44.e5 de5 45.Ke5 Kd7 46.Kd5 ½–½. Schirmer – Leppert, 1985.

9.Qc3 Ne5 10.Nbd2 Ne4 11.Qa3 (11.Qc1 Nd2 12.Qd2 Be6 13.Ne5 de5=) 11...Nd2=+ 12.Nd2 Qg5 13.Rg1 (13.g3 Qe7=) 13...Bg4 14.Bg4 Qg4 15.Rc1 Qf5 16.Ke2 (16.Be5 Qe5 17.Qa5 Qa5 18.ba5 Rfe8=+) 16...Qh5 17.Nf3 a5 18.Be5 (18.b5 Nf3 19.gf3 Bb2 20.Qb2 Qh2=+) 18...ab4 19.Qb4 Ra2 20.Kf1 (20.Ke1 Be5 21.Qb7 Bh2-/+) 20...Be5 21.Qb7 Rfa8 (21...Bh2? 22.Rh1 Qf5 23.Qb3+-) 22.Qe4 Bf6 (22...Rb8 23.g4 Qh3 24.Rg2-/+) 23.Qd5 Ra1 24.Ra1 Ra1 25.Ke2 Ra2 26.Kd3 Qg4 27.h3 Qd7 28.Rb1 (28.Nd2 c6 29.Ne4 Be5 (29...cd5? 30.Nf6 Kg7 31.Nd7+-) 30.Qd6 Qd6 (30...Bd6?! 31.Nf6 Kf8 32.Nd7 Ke7 33.c5-/+) 31.Nd6 Bd6-+) 28...Qa4 29.Nd4 (29.Ne1 Rf2 30.Qb5 Qa3 31.Ke4 Re2-+) 29...Rf2 (29...Bd4 30.Rb8 Kg7 31.Qd4 f6 32.Ke4 Rf2 33.Rb7 Qc2 34.Kd5-+) 30.c5 (30.Qb5 Qa2 31.Qe8 Kg7-+) 30...Qa6 (30...Qa3 31.Qb3 Qc5 32.Rb2 Rb2 33.Qb2-+) 31.Rb5 (31.Ke4 Bd4 32.Rb8 Kg7 33.Qd4 Kh6 34.g4-+) 31…Qa1 (32.Rb8 Kg7-+) 0-1. Jacewicz,Grzegorz - Rohde,Friedhelm, corr or02-020, 2002.

9.Qc3 Ne5 10.Ne5=+ de5 11.Nd2 Bg4 (11...Bf5 12.0-0= (12.Qe5?? Ne8 13.Qa5 Bb2-+)) 12.f3 (12.Bg4 Ng4 13.0-0 Qd7=) 12...Be6 13.0-0 (13.Qe5?? Nh5 14.Qe4 Bb2-+) 13...c6 (13...Qe7 14.Rfd1= (14.Qe5?? Nh5 15.Qc5 Qc5 16.bc5 Bb2-+)) 14.Rfd1 Qc8 (14...Qe7 15.Rab1= (15.Qe5? Nh5 16.Qc5 Qc5 17.bc5 Bb2-+)) 15.Kh1 (15.Rab1 Re8+=) 15...Ne8 (15...Rd8 16.Nb3= (16.Qe5?? Nh5 17.Qa5 Bb2-+)) 16.e4 (16.Ne4 Qc7+=) 16...f5 (16...Nd6 17.Nb3 Rd8 18.Nc5+=) 17.c5 b5 (17...Nf6!?+=) 18.cb6 (18.a4 ba4 19.Ra4 Nf6+/-) 18...ab6 19.Rdc1 (19.Nc4 Qc7+/-) 19...Ra2 20.Ra2 Ba2 21.Qc6 Qc6 22.Rc6 Rf6 23.Rf6 (23.Rc1 Rf7+/-) 23...Bf6+= 24.ef5 (24.Nc4 fe4 25.fe4 Bc4 26.Bc4 Kf8+=) 24...gf5 25.Bc4 (25.Nc4 Bc4 26.Bc4 Kg7+=) 25...Bc4 26.Nc4 b5 27.Ne5 (continuation unknown). Brauer – Vogel, corr, 1976.

9.Qc3 Ne8 10.Qd2+= Bb2 (10...Bg4 11.b5 Bf3 12.gf3 Bb2 13.Qb2=) 11.Qb2= Qf6 (11...Nf6 12.Nc3=) 12.Nc3 Be6 13.0-0 Ne5 (13...Ng7 14.Rab1+=) 14.Ne5 (14.Nd2 Qg7+=) 14...Qe5 15.Rfd1 (15.Qd2 Rd8+=) 15...Rd8 (15...a5 16.b5=) 16.Rd4 (16.Qd2 Rd7+=) 16...Nf6 17.Rad1 Rd7 18.Qa3 a6 19.Bf3 Rfd8 20.Qb3 (20.Ne4 c6=) 20...c6 (20...b5 21.Nd5 c5=) 21.Na4 (21.Ne4!?+=) 21...b5+= 22.Nb2 c5 23.Rf4 (23.bc5 dc5 24.Rd7 Rd7 25.Rd7 Nd7 26.g3–/+) 23...g5–/+ 24.Nd3 bc4 25.Ne5 (better is 25.Rc4 Qf5 26.h3–/+) 25...cb3-+ 26.Nd7 Nd7 27.Re4 ba2 28.bc5 Nc5 29.Rb4 Rc8 30.h3 (30.Bg4 Bg4 31.Rg4 Rb8-+) 30...Nd3 31.Rb6 a5 32.Ra6 (32.Bc6 Kf8-+) 32...a4 33.Ra1? (33.Ra5-+) 33...Ra8 (better is 33...Rb8 34.Kh2 Rb1 35.Ra2 Ba2-+) 34.Ra8 0–1. Sternik,Ryszard – Grabowski,H, corr op, 1997.

9.Qc3 Bf5 10.0-0 a5 11.b5 Nb4 12.Nbd2 Re8 13.Nb3 Nc2 14.Rac1 Nh5 15.Nbd4 Nd4 16.Nd4 Nf4 17.Bf3 Nd3 18.Bb7 Ra7 19.Bd5 Nc1 20.Qc1 Bd7 21.a4 Re5 22.f4 Rh5 23.Qd2 Qb8 24.Bc6 Qe8 25.Bf3 Rc5 26.Rc1 Be6 27.Nc6 (27.Be2 c6 28.Nc6 Bb2 29.Qb2 Ra8+-) 27...Bb2+= 28.Qb2 Bc4 29.Kf2 Ra8 30.Qf6 Rb8 31.f5 gf5 32.Ne7 Kf8 33.Bc6 Qd8 34.Rc4! Rc4 (34...Rc6 35.Rc6 Rb6+-) 35.Bd5 Rc2 36.Kf3 Qe8 37.Nf5 (37.Nf5 Qe3 38.Ne3 Rf2 39.Kf2 Ke8 40.Bf7 Kd7 41.Qe6 Kd8 42.Qe8) 1–0. Quist,Viggo Bove – Stern,Werner, SVE jub50 corr8893, 1988. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Qd4 Nc6)

9.Qc3 Bg4 10.Nbd2=.

10.0-0 a5 11.b5 Nd8 12.a4 Ne6 13.Nbd2 b6 14.Nb3 Ne4 15.Qc2 Bb2 16.Qb2 Bb7 17.Nfd2 f5 18.Ne4 fe4 19.Rad1 Rf5 20.Nd4 Nd4 21.Qd4 Raf8 22.Rd2 Rg5 23.Bd1 h5 24.Rc2 Kh7 25.Be2 Re5 26.Bd1 Bc8 27.Be2 Bg4 28.Bd1 Qg5 29.Kh1 Bd1 30.Qd1 Ref5 31.Qe1 Qg4 32.Rg1 h4 33.h3 Qh5 34.Rf1 g5 35.Qe2 ½–½. Wolf – Anton, corr DDR 1979.

10.0-0 d5 11.b5 Nh5 12.Qd2+/-.

10.0-0 Re8 11.b5 (11.Qb3 Bf5+=) 11...Nh5 (11...Nd8 12.Qa3+=) 12.Qd2= Bb2 13.Qb2 Nd8 (13...Ne5 14.Nc3 Nf6 15.Nd4=) 14.Nc3+= Nf6 15.Rfd1 (15.Nd5!? Nd5 16.cd5+=) 15...Ne6= 16.Rd2 Nc5 17.Rad1 b6 (17...Bf5 18.Rd4=) 18.Nd4 (18.Rd4 a6=) 18...Bb7 19.Nd5 (19.Bf3 Bf3 20.Nf3 a6=) 19...Nd5 20.cd5 Ne4 (20...a6 21.Nc6 Qg5 22.Rd4=) 21.Rc2 Nc5 22.Nf3 ½–½. Nurmi,Urpo – Olli,Erkki, corr FIN–ch M, 1971.

10.b5 Nd8 11.0-0 Ne6 12.Nbd2 Ne4 13.Qc2 Nd2 14.Nd2 Nc5 15.Bg7+= Kg7 16.Nb3 Bf5 17.Qc3 Qf6 18.Qf6 Kf6 19.Nc5 dc5 20.g4 Be6 21.f4 Rad8 22.Rae1 Rd2= 23.f5 gf5=+ 24.gf5 Rg8 25.Kh1 Bc8 26.a4 Ra2 27.e4 Ke5 28.a5 Ra5 29.Bh5 f6 30.Rd1 c6 31.Rf2 Ra3 32.bc6 bc6 33.Rg2? Rg2 34.Kg2 Ke4 35.Be8 Bf5 36.Bc6 Kf4 37.Rd6 Ra6 38.Kf2 Be4 39.Rf6 Ke5 (40.Re6 Ke6 41.Be4 h6-+) 0–1. Eichsteller,E – Kuhlmann,AEJ, corr ICCF EU–H–802, 1984.

10.Nbd2+=.

10.0-0 Bf5 11.Nbd2 Nh5 12.Qb3 Nf4 13.ef4 Bb2 14.Qb2 Re2 15.b5 Nb8 16.Rae1 Nd7?? 17.Nb3 a6 18.Nfd4 Qf6 19.Qe2+- Ne5 20.Nf5 Qf5 21.ba6 Ra6 22.Nc5 Rb6 23.g3 Kg7 24.Kg2 d5 25.cd5 Qf4 ½–½. Buss,Michael – Barton,Phillip, USCF89RT5, 1989.

10.0-0 Bf5 11.Nbd2 Nh5 12.Qb3 Nf4 13.ef4 Bb2 (worse is 13...Re2 14.Bg7 Kg7 15.b5+/-) 14.Qb2 Re2 15.b5 Nb8 16.Rae1 Re1 17.Re1 Nd7 18.Nb3 a6 (18...Be6 19.Qe2=) 19.Nfd4 (19.ba6!? b6 20.Nbd4+=) 19...Qf6= 20.Qe2 Nc5 21.Nf5 Qf5 22.ba6 Ra6 23.Nc5 Qc5 24.Rb1 Rb6 25.Rb6 Qb6 26.g3 Qd4 27.f5 Kg7 28.fg6 hg6 29.Kg2 d5 30.cd5 Qd5 31.Qf3 (31.f3 Kf6+=) 31...Qa2 (31...Qf3 32.Kf3 f5 33.Ke3–/+) 32.Qc3+= Kh7 33.Qc7 Qd5 34.Kf1 b5 35.Qf4 Kg7 36.Ke2 Qc5 37.Kd3 Qa3 38.Kc2 Qa2 39.Kc3 ½–½. Buss,Mike D – Barton, USA corr, 1989.

10.0-0 Bg4 11.Qe1=.

10.0-0 Nh5 11.Qb3 Bb2 12.Qb2 Qf6 13.Nc3!? Be6 14.Rfd1 Ne5!? 15.Ne5 Qe5 16.Bh5! gh5 17.c5 dc5 18.bc5 h4! 19.Rac1 b6 20.cb6 ab6 21.h3 Qg7! 22.Kh1 ½–½. Bendig – K Schneider, corr 1987–88.

10.0-0 Nh5 11.Qb3 Bb2 12.Qb2 Qf6 13.Nc3 Bf5 14.Rad1 a6 15.Qb3+= Qg7 16.Nh4+/- Be6 17.Bh5 gh5 18.Nd5 Rac8 19.Rfe1 Bg4+= 20.f3 Bd7 21.e4 Nd4 22.Qc3 c5 23.f4 Rb8 24.Rd3 Kf8 25.bc5+- dc5 26.Qa5 Rec8 27.Nb6 Bg4 28.Nc8 Rc8 29.Qb6 (29...f6 30.h3+-) 1–0. Dopper,Johan – Van Embden,A, corr, 1990.

10.0-0 Nh5 11.Qb3 Nf4 12.Bd1 Bb2 13.Qb2=+.

10.b5 Ne5!? 11.Nbd2 a6+=.

10.b5 Ne7 11.Nbd2+= Nf5 12.Rd1 (12.Qd3 a6+=) 12...Ne4 (12...a6!?–/+) 13.Qc2 Nc5 (13...Nf2 14.Kf2 Ne3 15.Qb3 Ng4 16.Kf1-+) 14.0-0 a6 15.Bg7 Kg7 (15...Ng7 16.Nd4+=) 16.Nb3= Nb3 (16...Ne4 17.Nbd2 Nc5 18.Nb3=) 17.ab3 ab5 18.c5 (18.cb5 Be6=) 18...Qf6 (18...b4!?+=) 19.cd6= cd6 20.Bb5 Rd8 21.e4 Nh6 (21...Nh4 22.Nh4 Qh4+=) 22.h3 (22.Qc7 Bg4 23.Rd3 Bf3 24.Rf3 Qd4=) 22...Be6 (better is 22...Bh3!? 23.Qc7 Be6+=) 23.Rd3+= Rac8 (23...Ra1 24.Ra1 Qa1 25.Kh2+=) 24.Qd2+/- Rc5 (24...Qe7 25.Rd1+/-) 25.Ba4 (25.e5!? Qe7 26.ed6+/-) 25...b5 26.Rd6 (better is 26.e5 Re5 27.Ne5 ba4 28.Nc6+/-) 26...Rdc8?? (better is 26...Rd6 27.Qd6 Qc3+=) 27.b4+- R5c7 (27...Rh5 28.Bb3! Qc3 29.Be6 Qd2 30.Rd2 fe6 31.Rd7 Kf8 32.Nd4+-) 28.Bb5 Rc2 29.Qd4 1–0. Roczniak,Jan – Olbrych,W, Poland (year?).

11.b5 Nd8 12.Nbd2 Ne6 13.Nb3 Ne4 (13...a5 14.Nbd4= (14.Na5? Ne4 15.Qb4 Bb2 16.Qb2 Ra5-+)) 14.Qc2 Bb2 15.Qb2 N6c5 16.Nc5 Nc5 17.a4 Bf5 (17...a6 18.a5=) 18.a5 Bd3 (18...h6 19.Rfd1+=) 19.Bd3+= Nd3 20.Qc3 Nc5 21.Rfd1 c6 (21...h6 22.Rd5+=) 22.Rab1 cb5 23.cb5 Rac8 24.Qd4 (24.Rbc1 h6+=) 24...Ne4 25.Rbc1 Rc5 26.Rc5 dc5 27.Qd7 (27.Qd3 Qe6+=) 27...Kf8 (27...b6 28.Qd3=) 28.h3 (28.Qd3 Kg8+=) 28...Nf6 (28...Nc3 29.Rd2 Qd7 30.Rd7 Re7 (worse is 30...Nb5 31.Rb7 a6 32.Ng5+/-) 31.Rd8 Kg7=) 29.Qd3+= Rc8 30.Qc3 Kg8 31.Qc4 Ne4 32.Rd5 Nf6 33.Rd3 Ne4 34.Rd5 Nf6 ½–½. Sokolski,Alexey – Lilienthal,Andor, URS–ch21 Kiev, 1954.

11.Nbd2 Bd7 12.Qb3+=.

11.Nbd2 Ne4?? 12.Qb3 (12.Qg7) 12...Bb2 (12...Nd2 13.Nd2 Bf5 14.Bg7 Kg7 15.Bf3=) 13.Qb2 Qf6 14.Qf6 Nf6 15.Rab1 Bf5 16.Rb2 Ne5 (16...Kg7 17.b5 Ne5 18.Nd4+=) 17.Rc1 Nd3 (17...Kg7 18.Nb3=) 18.Bd3 Bd3 19.c5 dc5 20.Rc5 (20.bc5 Ba6=) 20...c6 21.a4 (21.h3 Rad8=) 21...Ne4 (21...Rad8 22.Nb3+=) 22.Ne4= Be4 23.Nd4 Bd5 24.Rc3 a6 (24...Rad8 25.f3=) 25.f3 (25.g4 Rad8=) 25...f5 26.Kf2 Re7 27.Rd2 Rf8 (27...Rd7 28.h3=) 28.b5+= ab5 29.ab5 cb5 30.Nb5 Bc6 31.Nd4 Rfe8 (31...Rd8 32.g3+=) 32.Nc6 bc6 33.Rd6 Kg7 (33...c5 34.Rc6+=) 34.Rdc6 h5 (34...Rb8 35.Rc2+=) 35.Rb6 Re6 36.Rb4 (36.Rb7 Kf6+=) 36...Kf6 37.Ke2 Ra8 38.Kd3 (38.Rb2!?+=) 38...Ra2= 39.Rc2 Rc2 40.Kc2 Re3 ½–½. Stabenow,Juergen – Petzold,H, corr DDR–FSM, 1977.

11.Nbd2 Nh5 12.Qb3 Bb2 13.Qb2 Qf6 14.Qf6 Nf6 15.Rab1 a5 16.b5= Nd8 17.b6 c5 18.Bd3 Bd7 19.Rb2 Bc6 20.Nb1 Nd7 21.Nc3 Ra6 22.Rfb1 f5 23.Nd5 Bd5 24.cd5 Ra8 25.Bb5 Re7 26.Bd7 Rd7 27.Nd2 Nf7 28.Rb5 a4 29.Nc4 Kg7 30.Kf1 Kf6 31.Ke2 Ne5 32.Ra5 Ra5 33.Na5 g5 34.f4 gf4 35.ef4 Ng4 36.Kd3 Re7 37.a3 Kf7 38.h3 Nf6 39.Kc4 h5 40.Rd1 Re4 41.Kb5+/- Rd4?? 42.Rd4+- cd4 43.Nb7 Ke7 44.Na5 (44.Na5 d3 45.b7+- (45.Ka4?? d2 46.Nc6 Kd7-+)) 1–0. Belov,PI – Komarov,GM, corr I liga Nipsegorodskaya oblast RUS, 1996.

11.Nbd2 Nh5 12.Qb3 Bb2 13.Qb2 Qf6 14.Qf6 Nf6 15.Rab1 Bf5 16.Rb2 Ne5 17.Rd1 Ne4 18.Ne4 Be4 19.Nd4 b6 20.Nb5 Re7 21.Nc3 Bb7 22.Nd5 Bd5 23.cd5 a5 24.a3 ab4 25.ab4 Ra3 26.Kf1 ½–½. Zimmer,P – Jacek, corr EU–H–197 1965.

11.Nbd2 Nh5 12.Qb3 Bb2 13.Qb2 Qf6 14.Qf6 Nf6 15.b5 Na5 16.Rab1 Bf5 17.Rb2 b6 18.Nd4 Bc8 19.N2b3 Nb3 20.ab3 Bb7 21.Ra2 a5 22.ba6 Ra6 23.Ra6 Ba6 24.Ra1 c5 25.Ra6 cd4 26.Rb6 de3 27.Kf1 ef2 28.Rd6 Ne4 29.Rd4 Nc3 30.Bd3 Nd1 31.Re4 Rd8 32.Bc2 f5 33.Re2 Nc3 34.Rf2 Rb8 35.Ke1 Na2 36.Bf5+- gf5 37.Ra2 Rb3 38.Kd2 Kf7 39.c5 Ke6 40.c6 Kd6 41.Rc2 Kc7 42.Ke2 Ra3 43.Kf2 Rb3 44.g3 Ra3 45.h4 f4 46.gf4+- Rh3 47.Kg2 Rh4 48.Kg3 Rh6 49.f5 Rc6 50.Rc6 ½–½. Groenendal – Kragten, corr Netherlands, 1989.

9.Bc3 cb4 10.Bb4 Ne4 11.Nbd2 Nd2 12.Nd2 Nc6 (12...Ba1 13.Qa1 Nc6 14.Bc3–/+) 13.Rb1 Bf5 14.Rb3 Nb4 15.Rb4 Bc3 (15...Qa5 16.Qb3=+) 16.Rb3=+ Qa5 17.Qc1 Bd2 (17...Be5!?=+) 18.Qd2= Qd2 19.Kd2 b6 20.Rd1 Rac8 21.Kc3 a5?? (21...Rfd8 22.Rb5=) 22.Ra3?? (better 22.Rd6 Rc5 23.Rdb6+-) 22...Rc7 (22...Rfd8!?+=) 23.Rd4 ½–½. Salcedo,Raymond (2315) – Aguilar,Michael (2030), Philippine National Games, 2014.

9.bc5 dc5 10.Bc3 Qc7 11.0-0 b6 12.Qc2 Bb7 13.Qb2 Ne8 (13...Qe7 14.Nbd2=) 14.Nbd2 Nc6 15.Rad1 (15.Bg7 Ng7 16.Ne4 Ne8+=) 15...Qe7 16.Nb3 Bc3 17.Qc3 Ng7 18.Rd2 Rad8 19.Rfd1 Rd2 20.Rd2 Rd8 21.h3 Nf5 22.a4 Rd2 23.Nbd2 f6 24.Nb3 a5 25.Nbd2 Kf7 26.Bd3 Nd6 27.Nb1 Nb4 28.Be2 Bc6 29.Bd1 Qe6 30.Na3 Ne4 31.Qb3 Qd7 32.Nb5 Ke7 (better is 32...Nd3!? 33.Be2 Ndf2–/+) 33.Be2= Nd2 34.Qd1 Nf3 35.Bf3 Qd1 36.Bd1 Bb5 37.ab5 Nd3 38.Kf1 Nb2 39.Bb3 a4 40.Ba2 Nd3 41.Bb1 a3 0–1. Kotainy,Gregor (1695) – Ziperstein,Jakob (1870), Dortmund op–B, 2007.

9.ba5 Ra5 10.0-0 Nc6 11.Nc6 bc6 12.Nd2 c5 13.Qc2 Bb7 14.Bc3 Ra7 15.Rfb1 Qa8 16.Bf3 Bf3 17.Nf3 Qe4 18.Qb2 Nh5 19.Bg7 Ng7 20.Nd2 Qd3 21.a4 Ne6 22.a5 f5 23.Ra3 Qe2 24.Qc3 f4 25.Ne4 fe3 26.fe3 Nf4 27.Nf2 Nd5–/+ 28.Qe1 Qc4 29.e4 Nf4 30.Re3 Ne6 31.Ng4 Nd4 32.Qh4 Qa2 33.Rf1 Rf1 34.Kf1 Qf7 35.Kg1 Kh8 36.Nh6 Qf8 37.h3 Ra5-+ 38.e5 Ra4 39.Ng4?? Ra1-+ 40.Kh2 Qf4 41.Rg3 Ra8 42.ed6 cd6 43.Qe7 0–1. Vrhovnik,D (2060) – Gruzmann,B (2280), 11th European Senior, 2011.

9.ba5 Ra5 10.Nc3 Nbd7 11.0-0 Re8 12.Qd2 Ra8 13.Rfd1 Nc5 14.Nb3 Nfe4 15.Ne4 Ne4 16.Qc2 Qh4 17.g3 Qe7 18.Bg7 Kg7 19.Bf3 Ng5 20.Bg2 Qf6 21.c5 Nh3 22.Bh3 Bh3 23.Nd4 dc5 24.Qc5 Rad8 25.f4 Rd7+= 26.Kf2 b6 27.Qc6 Qc6 28.Nc6 Rd1 29.Rd1 Ra8 30.Ra1 Ra3 31.Nd4 c5 32.Nb5 Rd3 33.Ke2 c4 34.Nd4 Bg4 35.Kf2 Rd2 36.Kg1 Bh3 37.a3 Rg2 38.Kh1 Rb2 39.a4 Bg2 40.Kg1 Be4 41.Rc1 Rg2 42.Kf1 Ra2 43.Ke1 Ra4 44.Nb5 Bd3 45.Kd2 Rb4 46.Nd6 b5 47.Kc3 Rb3 48.Kd4 h5 49.e4 Be2 50.Rc2 Bd1 51.Rc3 Rb2 52.Kc5 Ba4 53.e5 Rb3 54.Kd4 Rb2 55.Kc5 Kf8 56.h3 Ke7 57.g4 Rb3 58.Ne4 Rb1 59.Re3 Rb3 60.Rc3 Rb1 61.Re3 Rb3 ½–½. Meduna,Eduard – Har Zvi,Ronen, Lazne Bohdanec, 1997. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4)

9.b5 a4 10.a3 Nbd7 11.0-0 Nc5 12.Nc3 Be6 13.h3 Qe7 14.Qc2 Bh8 15.Rfd1 Bg7 16.Rab1 Rfe8 17.Ne6 fe6 18.Bf3 Red8 19.Ne2 Nfd7 20.Bd4 Ne5 21.Be5 de5 22.Nc3+/- Rd6 23.Ne4 Rd1 24.Rd1 c6 25.bc6 bc6 26.Bg4 Nb7 27.c5 Ra5 28.Qd2 h5 29.Be2 Ra8 30.Qd7 Qd7 31.Rd7 Nd8 32.Bd3 Nf7 33.Nd6 Nd6 34.cd6 g5 35.Bc4 Re8 36.e4 Kh7 37.Re7 Rd8 38.d7 Kg6?? 39.Be6 Bf6 40.Bf5 (40...Kh6 41.Rh7) 1–0. Reuter,Alfred (1770) – Meier,Tobias, 04. VCC–Open, 2001.

9.b5 c5 10.bc6 bc6 11.0-0 Qc7 12.Nc3 Nbd7 13.Rb1 Ba6 14.Ba3 Rfe8 15.Qa4 Bb7 16.Rfd1 Bf8 17.Rb2 Nc5 18.Qc2 Nfd7 19.Rdb1 Ra6 20.Bf3 Bc8? 21.Bc6 Qd8 22.Nd5 Bg7 23.Bb5 Ne6 24.Nc6 Rc6 25.Bc6 Nec5 26.Bc5 dc5 27.Rb8 Nb8 28.Be8 Na6 29.Bb5 Nb4 30.Nb4 ab4 31.Rd1 Qa5 32.Qa4 Qc7 33.Qa8 Bf8 34.Qc6 Qb8 35.Qe8 1–0. Vogt – Petrushin, Leipzig 1980.

9.b5 c5 10.Nf3 a4 11.Bd3 (11.0-0 Be6+=) 11...Nbd7 12.a3 (12.0-0 Re8=) 12...Nb6 13.Nbd2 h6 (13...d5 14.0-0=) 14.Qc2 Qe7 15.0-0 Be6 16.h3 d5 17.cd5 Bd5 18.e4 Be6 19.Rfe1 c4 20.Nc4 (20.Bc4 Rac8 21.Bf6 Bf6–/+) 20...Nc4 21.Bc4 Rac8 22.Nd2 Rc4 (better 22...Rfd8=+) 23.Nc4+- Rc8 24.Qa4 (better 24.Bf6!? Qf6 25.e5+-) 24...Rc4= 25.Qa8 Rc8 26.Qa7 Qd7 27.a4 Qd2 (27...Rc2 28.Be5+=) 28.Bf6+= Bf6 29.Rad1 (worse 29.Qb7 Ba1 30.Ra1 Qd4–/+) 29...Qg5 (29...Qc2 30.Qb7 Qa4 31.Qa6=) 30.Qb7+- Be5 31.Rd5 (better 31.Rd3+=) 31...Bh3-+ 32.g3 Qf6 (better 32...Rc3 33.Qb8 Bb8 34.Rg5 hg5-+) 33.Kh2?? (33.Rd3 Bd4 34.Kh2 Qf2 35.Kh3 Rc5 36.Qb8 Kg7-+) 33...Be6 (33...Qf2 34.Kh3 Qg3) 34.Re5?? (better 34.Kg1 Bd4 35.Rf1-+) 34...Qf2 (34...Qf2 35.Kh1 Qe1 36.Kg2 Rc2 37.Kf3 Qf2; 34...Qe5?! 35.Kg2-+) 0–1. GuestMKCQ – GuestHVFY, freechess.org, 2017.

9.b5 Nbd7 10.Nc3 Nc5 11.0-0 Re8 12.Qc2 Bg4 13.Rad1 Be2 14.Qe2 Qe7 15.Nd5 Nd5 16.cd5 Qe5 17.Qc4 Qe4 18.Ba3 b6 19.Rc1 Qh4 ½–½. Lombardy – Byrne, New York 1969.

9.b5 Nbd7 10.Nc3 Re8 11.0-0 Nc5 12.Qc2 (12.a4 Qd7=) 12...Ng4 (12...Qe7 13.Nd5 Nd5 14.cd5=) 13.Rad1 (13.Nd5 Be5 14.h3 Nf6+=) 13...Bd7 (13...Be5 14.Nf3=) 14.h3 (14.Nd5 Be5 15.h3 Nf6+=) 14...Nf6 15.Bf3 Qc8 (15...Qe7 16.Nd5 Nd5 17.Bd5=) 16.Ba3 (16.a4 Be6+=) 16...Re5 17.Nde2 (17.Nd5!?+=) 17...Bf5= 18.Qc1 Nce4 (18...Nd3 19.Qd2 Nb4 20.b6=) 19.Ne4 Be4 20.Be4 Ne4 (20...Re4 21.Bb2=) 21.Nf4 Rg5 22.Qc2 Qe8 23.Nd5 Rc8 24.Bb2 c6 25.Nb6 Rd8 26.Bg7 Kg7 27.Rd4 Re5 28.Qb2 f6 29.bc6 bc6 30.Rb1 Qe6 31.Qc2 Qe8 32.Na4 Re7 33.Nb2 Nc5 34.Rbd1 Red7 35.Qc3 Rb8 36.f3 Qe7=+ 37.e4? Qe5?? 38.Nd3= Nd3 39.R4d3 Qc3 40.Rc3 Kf7 41.Ra3+= Rb2 42.Ra5+/- Rc2 43.c5 Rb7 44.Rd6+- Rbb2 45.Ra7 Ke8 46.Re6 Kd8 47.Rd6?? Ke8 48.Ra8 Ke7+/- ½-½. Kesmaecker,Philippe (2270) - Krainski,Slawomir (2180), NATO-ch13 Brest, 2002.

9.b5 Nbd7 10.Nd2 a4 11.Ba3 Nc5 12.Rc1 Re8 13.0-0 h5 (13...Qe7 14.Bb2=) 14.N2f3 Nfe4 15.h3 (15.Bb2 a3 16.Ba1 Qe7=) 15...Bd7 (15...Qe7 16.Bb2=) 16.Nd2 Nd2 17.Qd2 Ne4 18.Qd1 Qg5 19.Nf3 Qf6 20.Qe1 (20.Bd3 Qe7=) 20...g5 (20...Qe7 21.Bd3=) 21.Nd4 (21.Nd2!?=) 21...g4=+ 22.hg4 hg4 23.Qd1 (better 23.Bb2=+) 23...Qh4-+ Black prepares g3 24.c5 (24.Qe1 Bd4 25.ed4 Kg7 26.Bg4 Bg4-+ (26...Qg4?! 27.f3 Qg6 28.fe4=)) 24...g3 (24...Be5 25.f4 Bd4 26.Qb3 ab3 27.Rf3 gf3 28.Rf1 Be3 29.Rf2 Qf2 30.Kh2 Qg2) 25.fg3 Ng3 (25...Qg3?! 26.Rf3 Qe5 27.c6 bc6 28.Nc6 Bc6 29.Rc6=+ (29.bc6? Ng5 30.Rf2 Qe3-+)) 26.Rf4 Qh6?? (26...Qf4 27.ef4 Bd4 28.Kh2 Ne2-+ (worse 28...Re2 29.Qd4 Nf5 30.Qf6+=)) 27.Bg4?? (27.Bc4 Bd4 28.Qd4= (28.Bf7?? Kf8 29.Qd4 Ne2 30.Kf2 Nd4 31.Be8 Ke8 32.Rd4 Qe6-+)) 27...Re3-+ 28.Rf7 (28.Bd7 Qf4 29.Nf3 Ra3-+) 28...Bg4 (28...Re1! 29.Qe1 Bd4 30.Qe3 Be3 31.Rf2 Qh1) 29.Qg4-+ Kf7 30.Nf5 Nf5 (30...Ra3 31.Nh6 Bh6 32.Qc4 Kg6 33.Qe6 Kh7 34.Qe7 Kh8 35.Qh4 Ne2 36.Kh2=) 31.Qf5 Kg8 (31...Ke8 32.Qd5 Ra3 33.Qg8 Bf8 34.Rf1-+) 32.Rf1 (32.cd6 Ra3 33.Rd1 cd6 34.Qd5 Kh8 35.Qd6 Qd6 36.Rd6 Ra2-+) 32...Re7 (better 32...Ra3 33.Qd5 Kh7 34.cd6 Qe3 35.Kh1 Rh8-+) 33.cd6 (33.Qd5 Qe6 34.Qg5-+) 33...Bd4 34.Qf2 Bf2 35.Rf2 Re1 36.Rf1 Qe3 (36...Rf1 37.Kf1 Re8 38.Bb4 Qc1 39.Kf2 Qe3 40.Kf1 Rf8) 37.Kh2 (37.Kh1 Rf1 38.Kh2 Qf4 39.g3 Qh6 40.Kg2 Qh1) 37…Rf1 (37...Rf1 38.Bc1 Qc1 39.g4 Qd2 40.Kg3 Qf2 41.Kh3 Rh1) 0-1. Leonenko,Maxim - Maltsevskaya,Aleksandra (2325), Bogdanovich Mem Qual, 2021.

9.b5 Nc5 10.0-0=.

9.Nc2 Bf5 10.a3 c5 11.0-0 Bc2 12.Qc2 cb4 13.Bf3 ba3 14.Ra3 Nc5 15.Bd4 Nfd7 16.Nc3 a6 17.Rd1 Be5 18.Nd5 Re8 19.Rb1 Rc8 20.g3 Rb8 21.Bg2 Qc8 22.Qd2 Qd8 23.h3 f5 24.Rb4 b6 25.Rb1 a5 26.Bc5 Nc5 27.Rb5 Bg7 28.Qd1 Nd7 29.Rab3 Re5 30.Rb1 Kh8 31.R5b3 Kg8 32.Qc2 Kh8 33.Qd1 Re8 34.Qc2 ½–½. Mehlhorn,Uwe – Dopper,Johan, corr or03–027, 2003.

9.Nc2 cb4 10.Nb4 Nc6 11.Nd5 (better 11.a3!?=) 11...Nd5–/+ 12.Bg7 Ne3 13.fe3 Kg7 14.0-0 (14.Nc3 Qg5 15.Qd6 Qg2–/+) 14...Qe7 15.Qd2 Re8 16.Qc3 (16.Qb2 Kg8 17.Rf3 Bg4–/+) 16...Kg8 17.Rf3 Bg4 18.Rf2 Bf5 19.Na3 Qe3 20.Nb5 Qc5 21.Kf1 (21.Qd2 Rad8 22.Nc7 Re5-+) 21...Re3 22.Qd2 (better 22.Qf6 Re6 23.Qc3-+) 22...Qe5 23.Re1 Rd8 24.Bf3? (24.g4 Be6 25.Rc1-+) 24...Bd3 25.Be2 (25.Rfe2 Bc4 26.a4 a6-+) 25...Qh2 26.Rf3 (26.Rf7 Rde8 27.Kf2 Qg3 28.Kg1 Re2 29.Qe2 Re2 30.Re2 Be2 31.Nc3 Kf7 32.Ne2 Qe1 33.Kh2 Qe2 34.a3 Qe3 35.Kh1 Nd4 36.g3 Qf2 37.g4 Nf3 38.g5 Qf1) 26...Rf3 27.gf3 Bf5 28.Nd6 Bh3 0–1. Hilbert,Stephan J (1710) – Faust,Dieter (1730), FICGS, 2014.

9.Nc2 Nc6 10.b5 Na5 11.0-0 b6 (11...Be6 12.Nd2=) 12.Nd2 d5 13.Bf3 Be6 14.cd5 Nd5 15.Bg7 Kg7 16.Qc1 Qf6 17.Ne4 Qe5 18.Ne1 Nb4 19.Rb1 (better is 19.Nc3!? Rac8 20.Be2=) 19...Bc4–/+ 20.Nd2 Bf1 21.Ba8 Ra8 22.Nef3=+ Qf6 23.Ne4? Qe7-+ (23...Qe7 24.Nc5 Bg2 25.Kg2 bc5 (25...Qc5?! 26.Qb2 Kg8 27.Qb4=) 26.Qc3 Kg8-+) 0–1. Nikolac,J (2420) – Kazhgaleyev,M (2640), 17th CRO–chT 1b, Sibenik CRO, 2008.

9.bc5 dc5 10.Nb3 Qe7 11.0-0 Nc6 12.Qc1 Bf5 13.Qc3 (13.f3 Bh6 14.f4 Bg7–/+) 13...Rad8 (13...Rfd8 14.N1d2–/+) 14.a3 (14.N1d2 Nh5 15.Qc1 Bd3 16.Bg7 Kg7 (16...Be2 17.Bf8 Qf8 18.Re1+/-) 17.Qc3 Qf6 18.Qf6 Nf6 (18...Kf6? 19.Bd3 Rd3 20.Nc5+-) 19.Bd3 Rd3–/+) 14...Nd4 (14...Rfe8!? 15.N1d2-+) 15.ed4–/+ Qe2 16.Re1 cd4 17.Nd4 (17.Re2 dc3 18.Nc3 Rfe8–/+) 17...Qh5 18.Nf5 (18.Nf3 Rd3 19.Qb4 Rf3 20.gf3 Bh3-+) 18...Qf5-+ (18...gf5?! 19.Nd2=) 19.Nd2?? (better is 19.Qf3 Rfe8 20.Rf1 Qf3 21.gf3-+) 19...Nh5 20.Qc1 Nf4 21.Bg7 Nd3 (21...Kg7?! 22.Qb2 Kg8 23.Ne4–/+) 22.Ne4 Nc1 (22...Kg7?! 23.Qc3 Qe5 24.Qe5 Ne5 25.Nc5 Nc4 26.Nb7+=) 23.Bf8 Nd3 (23...Kf8?! 24.Rac1 Qa5 25.Nf6-+; 23...Rf8?! 24.Rac1 Rd8 25.c5-+) 24.Be7 (24.Bb4 Ne1 25.Re1 Qc8-+) 24...Ne1 25.Nf6 Kg7 26.Bd8 Nd3 27.Rf1 Qc8 28.Be7 Qc4 29.h4 (29.h3-+) 29...Qe6 30.Bd8 Kh8 31.Rb1 (31.Rd1 Qd6 32.Ng4 Qd8-+) 31...b6 32.Rb5 (32.Rd1 Qd6 33.Ng4 Qd8-+) 32...Qe1 (32...Qe1 33.Kh2 h5-+) 0–1. Kushch,Nikolai (2415) – Zinchenko,Yaroslav (2545), 6th Zaporozhje Ukraine, Ermak Cup, 2010. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4 c5)

9.bc5 dc5 10.Nb3 Qe7 11.0-0 Rd8 12.Qc1 Nc6 13.Rd1 Bf5 14.Rd8 Rd8 (worse is 14...Nd8 15.Nc3=) 15.N1d2 Nb4 16.a3 Nc2 17.Ra2 Ne3 18.Bf3 (18.fe3 Qe3 Double attack) 18...Neg4 19.Nf1 (19.h3 Ne5 20.Be5 Qe5 21.Bb7 Qc7+=) 19...Ne5 (19...b6 20.Ng3–/+) 20.Be5 Qe5 21.Na5 Be4 22.Re2 Qc7 23.Be4 Ne4 24.Re4 Qa5 25.Re7 Qa6 26.Qf4 Bf6 27.Rc7 Qd6 (better is 27...Kg7!? 28.Qe4 Rd4 29.Qb7 Qc4–/+) 28.Qd6= Rd6 29.Rb7 Ra6 30.Rb3 (30.Rb5 Ra3 31.Rc5 a5+=) 30...Ra4–/+ 31.Ne3 Bd4 32.Kf1 Be3 33.fe3 Rc4 34.Ke2 Rc2 35.Kf3 c4 36.Rb7 a6 37.Rb6 a5 38.Ra6 Ra2 39.Ra5 c3 40.h4 Kf8 41.Ra7 h5 42.g3 Ke8 43.a4 Kd8 44.Ra5 Kd7 45.Rc5 c2 46.a5 Kd6 47.Rc3 ½–½. Melich,Jindrich – Adamek,Petr, Ch CSS, 1993. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 ed4 8.Nd4 c5)

9.bc5 dc5 10.Nb5 Nc6 11.0-0 Be6 12.Nd2 Qe7 13.Qb3 Rfd8 14.Rad1 a6 15.Nc3 b5 16.Qc2 Bf5 17.Qc1 Nb4 18.e4 Ne4 19.Nce4 Be4 20.Ne4 Bb2 21.Qb2 Qe4 22.cb5 Rd1 23.Bd1 Rb8 24.ba6 Na6 25.Qf6 Nb4 26.Qd6 Re8 27.Bb3 Nd3 28.Qd5 Qd5 29.Bd5 Rd8 30.Bb3 Rc8 31.Bc4 Nb2 32.Bb5 Ra8 33.Rc1 Ra2 34.Rc5 Ra1 35.Bf1 Nd3 36.Rc7 Nf4 37.g3 Ne6 38.Rb7 Rc1 39.Kg2 Rc7 40.Rb4 Kg7 41.Bc4 Kf6 42.f4 h5 43.Kf3 Rd7 44.Rb6 Rd4 45.Bb3 Rd2 46.h3 Rd3 ½–½. Kushch,Nikolai (2375) – Rusjanovsky,Oleg, UKR ol Alushta, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4 c5)

9.bc5 dc5 10.Nb5 Qe7 11.Qd6 Nc6 12.Qe7 Ne7 13.0-0 Bf5 14.Nd2 a6 15.Nd6 Be6 (better is 15...Rad8!? 16.Nf5 Nf5=) 16.Nb7+/- Rab8 17.Bf6 Bf6 (17...Rb7!? 18.Bg7 Kg7+/-) 18.Rab1+- (18.Nc5 Ba1 19.Ra1 Rb2–/+) 18...Bc3 19.Ne4 Bb4 20.Nbc5 Bf5 21.Nf6 Kg7 22.Nfd7 Bb1 23.Rb1 Bc5 24.Rb8 Rb8 25.Nb8 a5 26.Nd7 Bb4 27.c5 Nd5 28.c6 a4 29.Bc4 Nc7 30.f4 a3 31.Kf2 f5 32.h3 h6 33.g4 fg4 34.hg4 h5 35.gh5 gh5 36.e4 h4 37.f5 Be7 38.e5 Bd8 39.f6 Kg6 40.f7 Be7 41.f8Q Bf8 42.Nf8 Kf5 43.Nd7 Kg4 44.e6 h3 45.e7 Kf4 46.Nf6 Ke5 47.e8Q Ne8 48.Ne8 h2 49.Kg2 1–0. Fournier,Frederic (2270) – carlosgodoy (2185), Active, 2002.

10.a3 Nc6 11.ab4 d5 12.0-0 Be6 13.Nd2 Qe7 14.Qb3 (14.c5 Nb4 15.Be5 Ne8 (15...Qc5? 16.Bd6 Qb6 17.Bb4+-) 16.Bg7 Ng7=) 14...Rfd8 15.Nd4 (15.c5 d4 16.Nc4 Ne4=+) 15...Qb4=+ 16.Nc6 (better 16.Qb4!? Nb4 17.c5=+) 16...Qb3–/+ 17.Ne7 Kf8 18.Nb3 dc4 19.Nc5 Ke7 20.Nb7 Rd2 21.Ba3 Ke8 22.Bf3 Bd5 (22...Rb8 23.Bb4 Rb2 24.Nd6 Kf8 25.Ba3=+) 23.Nd6=+ Kd7 24.Nc4 Bc4 (24...Rc2!? 25.Rfc1 Rc1 26.Rc1 Bf3 27.Ne5 Ke6 28.Nf3 Ne4=) 25.Ba8+= Bf1 26.Bb4 Rb2 27.Bc3 Rc2 28.Bf6 (28.Ra7? Ke6 29.Kf1 Rc3 30.Ra6 Kd7-+) 28...Bf6 29.Ra7 Rc7 (29...Ke6 30.Kf1 Rd2 31.Ra6 Ke7 32.Bc6+-) 30.Rc7+- (30.Kf1?? Ra7 31.Bd5 Kd6-+) 30...Kc7 31.Kf1 Kd6 32.f4 g5 33.Ke2 gf4 34.ef4 h6 35.Kd3 Ke6 36.Ke4 Ba1 37.Bd5 Ke7 38.g4 f6 39.Kf5 Bc3 40.h3 Bd4 ½–½. forsetinn (2175) – talstactician (2025), gameknot.com, 2014.

10.Qd6 Nc6 11.Nd2 Bd7 12.Qd3 Qe7 13.0-0 Rfd8 14.Nf3 Be6 15.Qc2 Rac8 16.a3 a6 17.Nbd4 Na5 18.Ne6+= Qe6 19.Rad1 (19.Nd4!? Qe4 20.Bd3=) 19...Rd1= 20.Rd1 ba3 (20...Nc4 21.Bc4 Rc4 22.Rd8 Bf8 23.Qd1=) 21.Ba3+= b5 (21...Nc4? 22.Bc4 Rc4 23.Rd8 Ne8 24.Re8 Qe8 25.Qc4+-) 22.Nd4 Qe5 23.c5 Nd5 24.Qd2 Nc4 25.Bc4 bc4 26.c6 (26.Nf3 Qc3 27.Qd5 Qa3+/-) 26...Qe8 27.h3 Ne7 28.Be7 Qe7 29.Qa5 Bd4 30.Qa6 Qe8 31.Rd4 Rc6 32.Qa5 Rc8 33.Qc3 Qc6 34.h4 h5 35.Rf4 Qe6 36.g4 hg4–/+ 37.h5 Rc5 38.h6= Qe5 39.Qb4 f5 40.Rd4 Kh7–/+ 41.Qb6 Rb5 42.Qc6–/+ Rb1 43.Kg2 Kh6 44.Qc4 Qb5 45.Qb5 Rb5 ½–½. Anastasian,Ashot (2545) – Zhelnin,Vladimir V (2420), St Petersburg op, 1994. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 ed4 8.Nd4)

10.Nd6 Na6 11.0-0 Be6 12.a3 ba3 13.Ra3 Nc5 14.Be5 Qb6 15.Nc3 Rfd8 16.Na4 Na4 17.Ra4 Rd7 (17...Ne8 18.Bg7 Ng7 19.c5 Qc5 20.Nb7 Rd1 21.Nc5 Rf1 22.Kf1+=) 18.Qd4= Qd4 19.ed4 Ne8 (19...Rd6 20.Bd6 Ne4 21.Bb4 Bd4 22.Bf3+=) 20.Bg7 Kg7 21.Nb5 Nd6 22.d5 Nb5 23.de6 Rd4 24.Bf3 Nd6 25.ef7 a6 26.Rb1 Rc8 27.Bd5 Rc5 28.Raa1+= Nc4 29.Bb7 a5 30.Rc1 Rd7 31.Ba6 Rdc7 32.h3 Nb6 33.Rcb1+= Nd5 34.Rb5 Nb4 35.Rb6 Rc1 36.Rc1 Rc1 37.Kh2 Rc7 38.Bb5 Rf7 39.Kg3 Ra7 40.Ba4 Nd5 41.Rc6 Rc7 42.Ra6 Rc5 43.Ra7 Kh6 44.f3 Nc7 45.h4 Kg7 46.Kf2 h6 47.Ke3 Kf6 48.g3 g5 49.hg5 hg5 50.f4 Ne6 51.Ra6 gf4 52.gf4 Kf7 53.Rb6 ½–½. Skerlik,Stanislav (2280) – Murden,Clive (2275), ICCF Jubilee Officials/IM–A, 2001.

10.Nd6 Nc6 11.0-0 Qe7 12.c5 Rd8 13.Nd2 Rb8 14.Qc2 b6 15.Rad1 bc5 16.Bf6 Bf6 17.N2e4 Bc3 18.Nc8 Rbc8 19.Nc3 bc3 20.Qc3 Qe5 21.Rd8 Rd8 22.Rc1 Qc3 23.Rc3 Rd2 24.Bb5 Ra2 25.Rc5 Ra5 26.Kf1 Kg7 27.Rc6 Rb5 28.Ra6 Rb7 29.g4 h6 ½–½. FitzSimmons,Jean Phillip – Wimmer,Juergen, Compuserve email, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 ed4 8.Nd4 c5)

10.Nd6 Qc7 11.Nc8 Rc8 12.Nd2=.

10.Qd6 Nb4 11.Qd8 Rd8–/+.

11.a3 Nc6 12.Qd6 a6=+ 13.Qd8 Rd8 14.Nc7 Rb8 15.Ra2 Bf5 16.Bf6 Bf6 17.Nd5 Bg7 18.Nbc3 b5 19.e4 Bc3 20.Nc3 Be6 21.Nd5 Nd4 22.f3 Bd5 23.cd5 Ne2 24.Re2= Rdc8 25.Kf2 a5 26.Rc2 b4 27.Rfc1 b3 28.Rc4 a4 29.Ke2 Rb5 30.Kd3 Ra5+= 31.Kc3 Kf8 32.e5 Ke7 33.Rd1 h5 34.Rf4 c4? 35.d6 Ke6 36.Rc4 Rc4 37.Kc4 Ra8 38.f4 Rc8 39.Kb4 b2 40.Rb1 Rc2 41.Ka4 Rg2 42.Kb3 Rh2=+ 43.a4 g5 44.a5+/- gf4 45.a6 Rg2 46.Rb2 Rb2 47.Kb2 f3 48.a7 f2 49.a8Q f1Q ½–½. Glowatzky,Tihomir – Blankenberg,Bruno, TT–15 ETC, 2005.

11.a3 Nc6 12.Nd6 Qb6 13.Qc2 Nd4 14.ed4 Qd6 15.Nc3 Bf5 16.Qb3 Rfe8 17.Rfe1 Re7 18.Nb5 Qf4 19.g3 Qh6 20.Nd6 Bg4 21.Bf1 Re1 22.Re1 cd4 23.Bc1 Qh5 24.Qb7 Rf8 25.Qa7 Bf3 26.h3 Ng4 27.Re8 Ne5 28.Rf8 Bf8 29.Nb5?? Bc6 30.g4 Nf3 31.Kh1?? Qe5-+ 32.Qc7 Qe4 33.Qf4 Qe1 34.Kg2 Nd2 35.Kg3 Nf1 36.Kh4 Be7 37.g5 h6 38.Kg4 Qe6 39.Kh4 0–1. Gouret,Thierry (2250) – Nemirovski,Serge (2365), Val Maubuee op, 1990.

11.a3 Nc6 12.Nd6 Nd4 13.ed4 Qd6 14.dc5 Qc5=.

11.a3 Nc6 12.Nd6 Be6 13.Ra2 Qe7 14.Bc3 Rad8 15.Rd2 b6 16.Bf3= Nb8 17.e4 Rd7 18.e5 Ne8 19.Re1 Qh4 20.Re4 Qd8 21.Ne8 Re8= 22.Qa4 Rd2 23.Bd2 Bd7 24.Qa7 Bc6 25.h3 h6 26.Re3 Re7 27.Rd3 Qd3 (28.Qe7 Qb1 29.Kh2 Bf3 30.gf3 Qb2 31.Qd8 Kh7-+; 27...Ra7?? 28.Rd8 Kh7 29.Rb8 Bf3 30.gf3 Be5 31.Rb6+-) 0–1. Gretencord,Ulrich (1905) – Fritsche,Frank (2090), DESC, 2001.

11.Qd6 Nc2–/+.

11.Nd6 Qe7=.

11.0-0 Be6 12.ab4 d5 13.c5 a6 14.Nd6 Nb4 15.Qa4 a5 16.Bd4 b6 17.Nc3 Nd7 18.Bg7 Kg7 19.Rad1 bc5 20.Qa1 f6 21.Na4 Qe7 22.Nb5 Bf7 23.Rc1 d4 24.Rfd1 Rab8 25.Bf1 de3 26.fe3 c4 27.Nd6 Ne5 28.Nc5 Ned3 29.Bd3 cd3 30.Nce4 Rfd8 31.Qd4 Rd6 32.Nd6 Rd8 33.Nc8 Rd4 34.Ne7 Rd7 35.Nc8 d2 36.Rb1 Rc7 37.Nd6 Rc2 38.Ne4 Ba2 39.Ra1 f5 40.Nd2 a4 41.Nf3 Bb3 42.Rd7 Kh6 43.Rb7 Nd5 44.Nd4 Rc3 45.e4 fe4 46.Nb3 ab3 47.Rb1 Rd3 48.R7b3 Nc3 ½–½. Espig – Savon, Odessa 1976.

11.ab4 d5 12.0-0 (12.c5 b6=) 12...Be6 (12...dc4 13.Qd8 Rd8 14.Bc4=+) 13.c5 Nb4 14.Ra7 Ra7 15.Na7 Nc6 (15...Qe7 16.Bd4=) 16.Nb5+= Qe7 17.N1c3 Nd7 18.Ba3 Bc3 (18...Qg5 19.Qd2=) 19.Nc3 Ra8 20.Nb5 (20.Qc1 Nc5 21.Bb5 Na7=) 20...Nc5 21.Qc2 b6 22.Qc3 f6 23.Rc1 Ne5 24.Bb4 Rc8 25.Nd4 Qe8 26.Qa3 Ra8 27.Qc3 Rc8 (27...Ne4 28.Qb2=) 28.Qa3 (28.Qd2 Nc4 29.Bc4 dc4 30.Bc5 bc5 31.Ne6 Qe6=) 28...Ra8 (28...Nc4 29.Bc4 dc4 30.Bc5 bc5 31.Ne6 Qe6 32.Rd1=) 29.Qc3 ½–½. Van Rooijen,Peter – Zednik,Martin, Orang–Utan Invitational, 2002.

11.Qd6 a6 12.Qd8=+ Rd8 (worse 12...Nd8 13.Nc7 Rb8 14.Nd5 Nd5 15.Bg7 Kg7 16.cd5 ba3 17.Na3+=) 13.Nd4 Ne4 (better 13...ba3 14.Na3 Ne4=+) 14.f3 (14.Nc6 Bb2 15.Ra2 (15.Nd8? Ba1 16.ab4 Nc3-+) 15...bc6 16.Rb2=+) 14...Nd4 (14...Nc5 15.Nc6 Bb2 A) 16.Nd8? b3-+ (16...Ba1?! 17.ab4 Nd7 18.c5–/+); B) 16.Ra2 bc6 17.ab4–/+) 15.ed4–/+ Nc5! 16.ab4 (16.dc5 Bd4 Double attack (16...Bb2 Pinning; 16...Bb2 Deflection; 16...Bd4 Decoy)) 16...Nb3 17.Ra2 Nd4 18.Kf2 Be6 19.Rc1? (better 19.Nd2!?–/+) 19...Bh6 (19...Ne2 20.Ke2 Bh6 21.Rc2-+) 20.Rc3 (20.Bd4 Bc1 21.Bb6-+) 20...Ne2 21.Ke2 Rac8 22.Ra5 (22.Kf2 Bf5 23.Na3 Rd2 24.Kg3 Re8-+) 22...Rc4 (22...Bc4 23.Kf2 Bd2 24.Rc4 Rc4 25.Bf6-+) 23.Rc4 Bc4 24.Kf2 Rd1 25.Rc5 (25.Na3 Rd2 26.Ke1-+) 25...Be6 0–1. Sitnic,A (2225) – Burovic,Rijad (2300), 16. Premier League BIH, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 0-0 6.Be2 e5 7.d4 ed4 8.Nd4 c5 9.Nb5 Nc6)

11.Qd6 Bf5 12.Nd2=+.

11.Nd6 Qc7 12.Nb5 Qe7 13.ab4 Rd8 14.Qb3 Bg4 15.f3 Bf5 16.e4 Be6 17.N1c3 Nb4 18.Ba3 a5 19.Rb1 Nh5 20.g3 (worse is 20.Bb4 ab4 21.Nd1 Nf4–/+) 20...Nf4 21.Rd1?? (21.gf4 Qh4 22.Kf1 Bh3 23.Kg1-+) 21...Ne2 22.Ke2 Qc5 23.Rd5 Bd5 24.Nd5 Rd5 25.ed5 (25.cd5 Qc2 Double attack (25...Qb5 Deflection; 25...Qb5 Overloading); 25.ed5 Rc8 Combination) 25...Re8 26.Kf1 Re3 (26...Re3 27.Bb4 ab4-+ (27...Rb3?? 28.Bc5 f5 29.Kg2+-)) 0–1. Boehnke,Hartmut (2015) – Schuster,Peter (2195), GER–ch36 V5 email, 2004.

11.Nd6 Qe7 12.Nc8 Rfc8 13.0-0 a5 14.Nd2 Nd7 15.Bg7 Kg7 16.Ra2 Nf6 17.Qc1 Rd8 18.Rd1 Rab8 (18...a4!?=) 19.ab4+= ab4 20.Qb2 Rd7 21.Nf3 Rd1 22.Bd1 Rd8 23.Be2 Kg8 24.Nd2 ½–½. Wantoch_Rekowski,Jacek (2320) – Schreiber,Werner (2440), Champions League, 2007.

11.0-0 Qb6 12.N1c3 Rd8 13.Qe1=+.

11.Qd8 Rd8 12.0-0 Bf5 13.N1c3? (better is 13.Bf3!?–/+) 13...Rd2-+ 14.Ba3 (14.e4 Rb2 15.ef5-+) 14...a6 15.Nc7 Rc8 0–1. Leon Acosta,Miguel (2105) – Heberla,B (2555), Oporto Open, 2015.

11.Qd8 Nd8 12.N1c3+=.

12.N1c3 Na5 13.Qa4 a6=.

12.Nd2 Qb8 13.Nf3 Rd8 14.Qc1 h6 15.Rd1 b6 16.Rd8 Qd8 17.Ne5 Ne5 18.Be5 Qe7 19.Qb2+= Rd8 (19...Bf5 20.Rd1 Be4 21.Nc7+=) 20.Rc1 (20.Na7!? Qa7 21.Bf6+=) 20...Rd7 21.h3 Qd8 22.Qa1 Ne8 23.Bg7 Ng7 24.Nc3 Ne8 25.a4 Nf6 26.Rd1 Rd1=+ 27.Qd1 Qd1 28.Nd1 Ne4 29.f3 Nd6 30.Nb2 g5 31.Kf2 h5 32.g4= h4 33.Bd3 f5=+ 34.e4 fe4 35.fe4 Kg7 36.Ke3 Kf6=+ 37.Be2 Bd7 38.Bd1 Bc6 39.Bc2 Nf7 40.Bd3 Ne5 41.Bc2 Be8 42.Bb3 Bf7–/+ 43.Ba2 Ke7 44.Bb3 Kd6 45.Ba2 a6 46.Bb3 b5!-+ 47.ab5 ab5 48.Nd1 Bc4 49.Bc4 Nc4 50.Kd3 Ne5 51.Ke3 b4 52.Nf2 c4 53.Kd2 Kc5 54.Ke3 c3 55.Nd3 Nd3 56.Kd3 Kd6 0–1. Kaenel,Hansjuerg – Renet,Olivier, Ch Switzerland, 1992.

12.Nd2 Qb8 13.Nf3 Rd8 14.Qc1 h6 15.Rd1 b6 16.Rd8 Qd8 17.Ne5 Ne5 18.Be5 Qe7 19.Qb2 Ne8 20.Bg7 Ng7 21.Rd1 Ne8 22.h3 a6 23.Nc3 Qf6 24.Qd2 Rb8 25.a4 Rb7 26.Ne4 Qe7 27.Qd8 Kg7 28.a5 Bf5 29.Ng3 Qd8 30.Rd8 Nf6 31.Bf3 Rd7 32.Nf5 gf5 33.Ra8 ba5 34.Ra6 f4 35.Ra5 fe3 36.fe3 Rd3 37.Rc5 Re3 38.Rc7 Rd3 39.c5 Nd7 40.Kf2 Ne5 41.Be4 Rc3 42.c6 Kf6 43.Rc8 Ke7 44.Rh8 f5 45.Rh7 Kf6 46.Bd5 Kg6 47.Rb7 f4 48.Be4 Kf6 49.Rh7 Nf7 50.Bd5 Rc2 51.Kf1 Nd6 52.Rh6 Ke5 53.Bf3 Nc4 54.h4 Ne3 55.Ke1 Kd4? 56.Rd6 Ke5 57.Rd2 Rc1 58.Ke2 Rc5? 59.h5 Nf5 60.Kf2 Nd4 61.Rd4! Kd4 62.h6 (62.h6 Rc2 63.Ke1+-) 1–0. Kaenel,Hansjuerg – Pelletier,Yannick, Switzerland ch, 1995. (=1.Nf3 g6 2.d4 Bg7 3.b4 d6 4.e3 Nf6 5.Bb2 0-0 6.c4 e5 7.Be2 ed4 8.Nd4)

12.Nd2 Qe7=+ 13.Qa4 Rfb8=+.

12.Nd2 Qe7 13.Qb3 a6 14.Nc3 b5 15.Bf3? (15.Qc2!?=) 15...bc4 (15...Rad8!? 16.Ncb1 bc4–/+) 16.Qa4 (16.Nc4? Na5 17.Na5 Bb3 18.Ba8 Ba2-+ (18...Ra8?! 19.ab3 Ne4 20.Ne4 Qe4 21.Bg7 Kg7 22.Rfc1+=)) 16...Rab8 17.Rab1 (17.Nd1 Nb4 18.Be2 Ng4 19.Bg7 Kg7–/+) 17...Ne5 18.Be2 (18.Qa6? fails to 18...Nf3 19.Nf3 Ra8-+) 18...Nd3 19.Ba1 Qd7 20.Qa6?? (better is 20.Qa3+=) 20...Nb4-+ 21.Qa4 Qd2 22.Rfd1 Qc2 23.Rb4 Qd1 24.Nd1 cb4 (24...Rb4?! 25.Qa5-+) 25.Bd4 c3 26.Bd3 Rfc8 27.Bc2 (27.f3 Ra8 28.Qb4 c2 29.Bc2 Rc2-+) 27...Nd5 28.Bg7 Kg7 29.e4 (29.Qa7 Nf6 30.Qa5 Bf5-+) 29...Ra8 30.Qb5 Rcb8 31.Qc6 (31.Qe2 Nf6 32.e5 Ne8-+) 31...Nf6 32.e5 (32.Qd6 Ba2 33.e5 Nd5-+) 32...Nd7 33.Bb1 Rc8 (better is 33...Ba2 34.Bc2 Be6 35.h3-+) 34.Qb7 (34.Qd6 c2 35.Bc2 Rc2 36.Qb4 Rca2-+) 34...Rab8 35.Qa7 (35.Qe4 Bf5 36.Qd4 Bb1-+) 35...c2 36.Bc2 Rc2 37.f3 Ra2 (37...Ra2 38.Qe3 b3-+) 0–1. Juegel,Marcel – Isaev,Jamshed (2455), WICC qual Dubai, 2002. (=1.e3 g6 2.Nf3 Bg7 3.d4 d6 4.c4 Nf6 5.b4 e5 6.Bb2 0-0 7.Be2 ed4 8.Nd4 c5 9.Nb5 Nc6)

12.Nd2 Qe7 13.Qc1 Rfd8 14.Rd1 Nb4 15.Nf3 Rd1 16.Qd1 Rd8 17.Qb3 a6 18.Na3 Ne4 19.Bg7 Kg7 20.Rf1 Qf6 21.Nb1 b5 22.a3 bc4 23.Qa4 Nd3 24.Qc2 Rb8 25.Bd3 cd3 26.Qd3 Bf5 27.Qd1 (better is 27.Qc4!? Nd6 28.Qa2-+) 27...Nf2!-+ 28.Kf2 (28.Rf2 Bb1 Discovered attack; 28.Kf2 Bb1 Discovered attack) 28...Rb1 (28...Bb1?! 29.Kg1 Rb2 30.Nd2-+) 29.Qd5 Rb2 30.Kg3 Qc3 31.e4 Be6 32.Qe5 Qe5 33.Ne5 c4 34.Rc1 Rb5 35.Nc6 Rb3 36.Kf2 Ra3 37.Nd4 Ra4 38.Ke3 Kf6 39.h4 Ke5 40.Nf3 Kd6 41.Kd4 Ra2 42.Ne5 Rg2 43.Nc4 Bc4 44.Rc4 Rb2 45.Rc8 Rb4 46.Ke3 a5 47.Rf8 Ke7 48.Ra8 a4 0–1. Epiney,Flo (2220) – Martello,Juan Alberto (2220), IECG, 2005. (=1.c4 Nf6 2.b4 g6 3.Bb2 Bg7 4.Nf3 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4 c5 9.Nb5 Nc6 10.bc5 dc5 11.0-0 Be6)

12.Nd2 Qe7 13.Qc1 Rfd8 14.Rd1 Nb4 15.Nf3 Rd1 16.Qd1 Rd8 17.Qb3 a6 18.Na3 Bf5 19.Rd1 Rd1 20.Bd1 Qd7 21.Be2 Nd3 22.Bd3 (22.Ne5 Ne5 23.Be5 Qd2=+) 22...Qd3 (22...Bd3? 23.Ne5 Bc4 24.Nac4+-) 23.Qd3 Bd3 24.Ne1 Bf5 (24...Be2 25.f3=+) 25.f3 Nd7 26.Bg7 Kg7 27.e4 Be6 28.Nd3 Kf6 29.Kf2 (29.Nf4 Ke5 30.Nd5 Kd4-+) 29...b5 30.Nb2 (30.Nf4 Bc4 31.Nc4 bc4 32.Nd5 Ke5=+) 30...b4 (30...bc4!? 31.Nac4 Ne5=+) 31.Nb1 Nb6 Attacking the isolated pawn on c4 32.Nd2 Ke5 (32...g5 33.Nd3=+) 33.Ke3 a5 (33...f6 34.h3=) 34.f4 Kd6 35.Kd3 a4 36.Nd1 a3 37.h3 (37.Ne3 Na4 38.f5 Bc8 39.fg6 hg6–/+) 37...h5 38.Ne3 (38.e5 Kc6–/+) 38...Na4 39.Nd1 Bd7 (39...f6 40.Kc2=+) 40.Kc2 (40.e5 Ke6=+) 40...h4 (40...f6 41.h4=+) 41.Nf3= White prepares e5 41...Bc6 (41...Nb6 42.e5 Ke6 43.Ne3=+) 42.e5 Ke6 43.Nh4 g5 44.fg5 Ke5 (44...Be4 45.Kb3 Nb6 46.Ne3=) 45.g6 (45.Nf3!? Kf4 46.h4=) 45...fg6=+ 46.Ng6 Kd4 47.Nf4 Kc4 48.Ne3 Kd4 49.Kd2 Be4 50.Ne2 Ke5 51.Nc1 Nc3 52.Nb3 Kd6 53.Nc4 Kd5 54.Na3 (54.Ne3 Kc6 55.Na5 Kc7-+) 54...Bg2 (54...ba3 55.Kc3 Bg2 56.h4+=; 54...Na2?! 55.Nc2 Kc4 56.Nca1 Bg2 57.h4-+) 55.Nc2 Be4 (55...Bh3!? 56.a3 Nb1 57.Kc1 Na3 58.Na3 ba3-+) 56.Ne3–/+ Kc6 57.Nc1 (57.Na5 Kb6 58.Nac4 Kc7–/+) 57...Bb1 58.h4 Na2 (58...Ba2 59.Na2 Na2 60.h5+-) 59.Na2 Ba2 60.h5 Bf7 61.h6 Bg6 62.Ng4 (62.Kc1 Kb5-+) 62...Kb5 63.Nf6 (63.Kc1 c4 64.Ne5 Bh7-+) 63...Ka4 (63...c4!? 64.Nd5-+) 64.h7 (64.Nd5 c4 65.Kc1 c3-+) 64...Bh7–/+ 65.Nh7 c4?? (65...b3 66.Nf6 Kb4=+) 66.Nf6–/+ c3 (66...b3!?–/+) 67.Kc2 Ka3 68.Ne4 ½–½. Kaenel,Hansjuerg (2395) – Gallagher,Joseph G (2515), SUI–ch, 1995. (=1.Nf3 g6 2.d4 Bg7 3.e3 d6 4.b4 e5 5.Bb2 Nf6 6.c4 0-0 7.Be2 ed4 8.Nd4 c5 9.Nb5 Nc6 10.bc5 dc5 11.0-0 Be6)

9.a3 Bd7 10.0-0 Ne5 11.Nc3 Re8 12.Qc2 a6 13.Rad1 h5 14.h3 Qc8 15.f4 Nc6 16.Qd2 Nd4 17.ed4 Bf5 18.Bf3 Be6 19.d5 Bf5 20.Kh2 Qd7 21.Rde1 Re1 22.Re1 Re8 23.Re2 h4 24.Qe1 Re2 25.Qe2 Bh6 26.Bc1 Bg7 27.Bb2 Kf8 28.Ne4 Ne4 29.Bg7 Kg7 30.Be4 Qe7 31.Bf3 Qe2 32.Be2 Kf6 33.g4 hg3 34.Kg3 Bc2 35.Kf3 Bb3 36.Ke3 g5 37.fg5 Kg5 38.Kf3 f5 39.Kg3 f4 40.Kf3 Bc2 41.h4 Kf5 42.h5 Be4 43.Kf2 Kg5 44.Bf3 Bd3 45.c5 Bb5 46.cd6 cd6–/+ 47.Kg2 Be8 48.Kf2 Bh5 49.Bg2 Bg4 50.Be4 Kf6 51.Bh7 Bf5 52.Bg8 Be4 (53.Be6 Ke5-+) 0–1. Hess,Helmut (1615) – Schneider,Georg(30Schwerte), 14sen.Bad Sooden–Allendorf, 2002.

9.b5 Ne5 10.0-0 c5 11.bc6 bc6 12.Nc3 Rb8 13.Ba3 c5 14.Ndb5 Be6 15.Qd6 Nfd7 16.Rfd1 Qh4 17.Rac1 Nc4 18.Qg3 Qg3=+ 19.hg3 Na3 20.Na3 Rb2 21.Bc4 Nb6 22.Be6 fe6 23.f3 Rb8 24.Ne4 Ra2 25.Nc4 Nd5 26.Rb1 Rb4 27.Nc5? Rc4 28.Ne6 Nb6 29.Rd8 Kf7 30.Ng5 Ke7 31.Rg8 Bh6 32.Nh7 Kf7 33.Rb8 Rc1! 34.Rc1 Be3 35.Kh2 Bc1 36.f4 Nd5 37.Kh3 a5 38.Ng5 Ke7 39.Rg8 a4 40.Rg7 Ke8 41.Rg6 a3 42.Rc6 Be3 43.Ne4 Re2 44.Nd6 Kf8 45.Ra6 a2 46.Kg4 Bd4 47.Kf3?? Re3-+ 48.Kg4 a1Q (48...a1Q 49.Ra1 Ba1-+) 0–1. Pakleza,Z (2345) – Zhigalko,A (2475), WYb18, Halkidiki GRE, 2003.

9.b5 Ne5 10.0-0 Be6 11.Nd2 Qd7 12.N2f3 Nf3 13.Bf3 d5 14.Ne6 fe6 15.a4 Rad8 16.Qe2 Qe7 17.Ba3 Qf7 18.Bf8 Rf8 19.c5 Ne4 20.Rac1 c6 21.Be4 de4 22.Qc4 Qf5 23.Rcd1 h6 24.Rd6 Rf6 25.Rd8 Kh7 26.Rd7 Rf7 27.Rf7 Qf7 28.Rd1 Qf6 29.Qe4 cb5 30.ab5 Qe7 31.Rd6 Qf6 32.g3 Qa1 33.Kg2 Qe1 34.Qb7 Qc3 35.Rd7 h5 36.Rg7! Qg7 37.c6 Kh6 38.Qg7 Kg7 39.c7 Kf6 40.c8Q Ke5 41.Qc7 Kf6+- 42.Qa7 h4 43.b6 h3 44.Kh3 g5 45.b7 g4 46.Kg4 Ke5 47.b8Q Kf6 (47...Kf6 48.Qe5! Ke5 49.Qd4#) 1–0. lllllll21 – zihulak, kurnik, 2011.

9.Nc6+= bc6 10.0-0 Rb8 11.a3 a5 12.Qa4 ab4 13.ab4 Re8 14.Nd2 Be6 15.Rfd1 d5 16.Bd4+= Bd7 17.Qb3 Qe7 18.Bc5 Qd8 19.Ra7 Bf5 20.Qa4 Qd7 21.Qa5 Rbc8 22.Bd4 Qd6 23.Ra6 Rb8 24.b5 Ng4 25.Nf1 Bc8? 26.Rc6 (26...Qd8 27.Bg7 Kg7 28.Bg4 Bg4 29.Rd5+-) 1–0. MrkT – derek9037, Internet, 2005.

9.Nc6 bc6 10.0-0 Rb8 11.a3 c5 12.Bc3 cb4 13.ab4 a6 14.Na3 Qe7 15.Bf3 Bb7 16.Bb7 Rb7 17.Nc2 Rb6 18.Ra5 c5 19.Qa1 Rc8 20.Ra6 Ra6 21.Qa6 Qe6 22.b5 d5 23.Qe6 fe6 24.Ra1 d4 25.ed4 Ne4 26.Bb2 Nd2 27.Ra4 Nb3 28.Ne1 Nd4 29.Bd4 Bd4 30.Nf3 Bf6 31.Ra6 Kg7 32.Ra7 Kg8 33.b6 Rb8 34.b7 Kf7 35.g3 Ke7 36.h4 Kd7 37.Kg2 h6 38.Ra5 Rb7 39.Rc5 Rb4 40.g4 Ra4 41.g5 hg5 42.hg5 Bg7 43.Rb5 Rc4 44.Rb7 Rc7 45.Rc7 Kc7 46.Nh4 Kd7 47.Ng6 Ke8 48.Kf3 Kf7 49.Nh4 Bd4 50.Kg3 Kg7 51.f3 Be3 52.Kg4 Bc1 53.Kh5 Bf4 54.Ng2 Bd2 55.f4 Kh7 56.Kg4 Kg7 57.Nh4 Bc1 58.Nf3 Be3 59.Ne5 Bd2 60.Nc4 Bc1 61.Kf3 Kg6 62.Ke4 Kg7 63.Ke5 Kf7 64.Nd6 Ke7 65.Nc8 Kf7 66.Ke4 Ba3 67.Nb6 Bb2 68.Nd7 Kg7 69.Kf3 Bd4 70.Kg4 Be3 71.Ne5 Bd2 72.Nd3 Be3 73.Kh5 Bd2? 74.Kh4 Be3 75.Kg4 Bd2 76.Kh5 Be3 77.g6 Bd2?? 78.Nc5+- e5 79.f5 Bb4 80.Ne4 (80.Ne4 Be7 81.f6 Bf6 82.Nf6 Kf6 83.Kh6+-) 1–0. Kushch,Nikolai (2375) – Grokhotov,Vladimir T (2350), UKR ol Alushta, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4 Nc6)

9.Nc6 bc6 10.Nd2 Re8 11.0-0 Rb8 12.Bc3 Bd7 13.Bf3 Qc8 14.h3 a5 15.a3 d5 16.Rc1 Bf5 17.Nb3 ab4 18.Bb4 Be4 19.Be4 Re4 20.Nd2 Re8 21.Qc2 Rb7 22.Rfd1 Qe6 23.Qa4 Ne4 24.cd5 cd5 25.Ne4 de4 26.Rc6 Qa2 27.Rg6! Reb8 28.Ra6 Qe2 29.Re1 Qd3 30.Ra8 Be5 31.Rb8 Rb8 32.Rd1 Qc4 33.Qa5 Re8 34.Qd5 Qc2 35.Qd7 Kg7 36.Qg4 Kh8 37.Rf1 c5 38.Qd7+- Rg8 39.Qd5 f6 40.Qc5 Qe2+= 41.Qd5 Bh2 42.Kh2 Qf1 43.Qe4 Qf2 44.Bc3 Qg3 45.Kh1 Qd6 46.Qf3 Kg7 47.Qg4 Kh6?? 48.Qf3 Kg7+/- 49.e4 Qc6 50.Qg4 Kh8 51.Qf3 Kg7 52.Qg4 Kh8 53.Qf3 ½–½. Holm,Sejer (2240) – Dyrgaard,Kristoffer (2170), North Sea Cup, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4 Nc6)

9.0-0+= dc4 10.Qc2 Na6 11.Qc4 c6 12.a4 Nc7 13.b5 cb5 14.ab5 Ne6 15.Nf3 Qd5 16.Nbd2 Qc4 17.Nc4 Nc5? 18.Nb6!+- Rb8 19.Ra7 Nfe4 20.Ba3 Re8 21.Rc1 Bf8 22.h3 Be6 23.Nd4 Nb3 24.Nb3 Bb3 25.Bf8 Rf8 26.Nd7 Rbc8 27.Rca1 Rfd8 28.Rb7 Bd5 29.Rba7 Be6 30.Ne5 Nc3 31.Bf1 Rc5 32.b6 Rb8 33.Ra8 Ra8 34.Ra8 Kg7 35.b7 (35...Ne2 36.Be2 Rc1 37.Kh2+-) 1–0. MrkT – Ed Bernheim, Internet, 2005.

9.0-0+= c6 10.Qb3 Nbd7 11.cd5 cd5 12.Nc3 Ne5 13.Rad1 Bg4 14.Bg4 Neg4 15.h3 Ne5 16.Nde2 Nc4 17.Ba1 Rc8 ½–½. Rohrbacher,W – Ladstetter,J, Hockenheim Baden ChS, 1994.

9.0-0+= Qe7 10.a3+=.

9.b5 c6 10.Nc3 Bg4?? (better is 10...a6+=) 11.Bg4+- Ng4 12.Qg4 1–0. pierred (2770) – cmulligan (2160), net–chess.com, 2011.

9.Nc2 Nc6 10.0-0 Bf5 11.b5 Ne7 12.Bd3 a6 13.Bf5 Nf5 14.a4 ab5 15.ab5 Ra1 16.Ba1 Ne4 17.Bg7 Kg7 18.Nd4 Nh4? (18...Qf6 19.Qf3 Re8 20.Nf5 Qf5 21.Qf5 gf5 22.Rd1+=) 19.Nd2 (better is 19.Qg4 d5 20.g3+-) 19...Qg5+= 20.g3 Nd2 21.Qd2 c5 22.f4 Qg4= 23.Qe2 Qh3 24.Nf3 Nf3= 25.Qf3 Re8 26.Re1 Qd7 27.e4 f5 28.Re3 Qe6 29.Kf2 Qc4 30.ef5?? Qc2-+ 31.Kf1 Qc1 32.Kf2 Qe3 33.Qe3 Re3 34.Ke3 gf5 35.h3 Kf6 36.g4 fg4 37.hg4 d5 38.Kd3 c4 39.Kd4 b6 40.Kc3 h6 41.Kd4 Ke6 42.Ke3 Kd6 43.Kd4 Ke7 44.Kd5 c3 45.Kc6 c2 46.Kb6 c1Q 47.f5 Qf4 48.f6 Qf6 49.Ka5 (49.Ka5 Qc3 50.Kb6 Kd6 51.Kb7 Qc7 52.Ka8 Qa5 53.Kb7 Qb5 54.Ka7 Kc6 55.g5 Qb7). ludice (1720) – rianja, kurnik, 2011.

9.0-0+= a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Qe7 13.Nc3 Nb6 14.Qb3 Bg4 15.Bd3 Bd7 16.h3 Ra8 17.Bb2 Qe5 18.Ncb5 Ne8 19.Rb1 Qe7 20.Nc3 Nf6= 21.Ra1 Ra1 22.Ba1 Nh5 23.Ne4 Nf6 24.Nf6 Bf6 25.Qa3 c5 26.Nf3 Ba1 27.Qa1 Bc6 28.bc5 dc5 29.Qe5 Qe5 30.Ne5 Ba4 31.Nf3 Bc6 ½–½. Van Rooijen,Peter (1715) – Lyew,Merrill (1700), SI–2003–0-00002, 2003.

9.0-0 a5 10.b5 a4 11.a3 Re8 12.Nc3 Nb6 13.Rc1 Nfd7 14.Nd5 Nd5 15.cd5 Nc5 16.Bc4 Bd7 17.Qe2 Re4 18.Rfe1 Qe7 19.f3 Rh4 20.g3 Rh6 21.Bc3 Re8 22.e4 Rh5 23.Qb2 Qg5 24.Qf2 Qd8 25.Rb1 g5 26.Ne2 Bc3 27.Nc3 Qf6 28.Qd2 Bh3 29.Re3 Bd7 30.Rb4 Ra8 31.b6 cb6 32.Rb6 Qe5 33.Bb5 Rb8 34.Bc6! Rh6 35.Rb4 Qe8 36.Bd7 Qd7 37.e5 Rg6 38.ed6 Rd6 39.Rb1 b6 40.Rbe1 h6 41.Qc2 Qd8 42.Re7 Rd7 43.R7e5 Kg7 44.Qd1 Qf6 45.Kg2 b5 46.h4 b4 47.hg5 hg5 48.ab4 Rb4+= 49.Qd2 g4 50.Rg5 Kf8 51.Rg4 Rg4 52.fg4 Re7 53.g5 Qd6 54.Re7 Ke7 55.Qd4 Kf8 56.Kf3 a3 57.Qb4 a2 58.Qa3 Qe7 59.Qa8 Kg7 60.Qa2 Qg5 61.Qc4 Qf5 62.Ke3 Qe5 ½–½. Lisakowski,Christof (2260) – Unterberg,Marcus (2325), RSS5D pro–42, 2005.

9.0-0 Ne5 10.h3 Re8 (10...c5 11.bc5 dc5=) 11.Qb3 (11.Nc3 Nc6=) 11...c6 (11...Ne4 12.Nf3+=) 12.a4 (12.Nc3 a5 13.a3 Qe7+=) 12...Qc7 (12...Ne4 13.Nf3+=) 13.Na3 (13.Nc3 a5 14.b5 Ned7=) 13...c5 (13...a5 14.b5+=) 14.Ndb5 (14.Nab5 Qe7 15.bc5 dc5=) 14...Qe7= 15.Rad1 Exerts pressure on the backward pawn 15...Rd8?? (better is 15...Ne4 16.Nc3 Nc3 17.Bc3 Bf5=) 16.bc5+- Ne8 17.cd6 Nd6 18.Nd6 (18.Rd6 Rd6 19.Nd6 Qd6+-) 18...Rd6 19.Rd6 Qd6 20.Nb5 Qb6 (20...Qe7 21.Rd1 Bd7 22.Ba3+-) 21.Bd4 Qa5 (21...Qd8 22.Qb2 Qe7 23.Nc3+-) 22.Bc3 (22.Nd6 Qc7 23.Ne8 Qe7 24.Ng7 Nc6+-) 22...Qb6 23.a5 Qc6 24.f4 (better is 24.Rd1 Be6 25.Na7+-) 24...Qe4?? (better is 24...Nd7+-) 25.Be5 (25.fe5?! Qe3 26.Rf2 Be5+-) 25...Be5 26.fe5 Qe5 27.Qc3 (27.Bf3 Rb8+-) 27...Qg3 (27...Qc3 28.Nc3 Bf5 29.e4+-) 28.e4 (28.Rf3 Qg5 29.c5 Be6+-) 28...Qg5 (28...Qc3 29.Nc3 Bd7 30.Rd1+-) 29.Kh1 (better is 29.c5 Be6 30.Nd6 Bh3 31.Qh8 Kh8 32.Nf7 Kg7 33.Ng5+-) 29...a6 (29...Be6 30.Nc7 Rb8+-) 30.Nc7 Rb8 (30...Bh3 31.gh3 Rc8 32.Nd5+-) 31.Nd5 (better is 31.Ne8!? Qh6 32.Nf6 Kh8+-) 31...Be6 32.Nf6 (32.Nf6 Qf6 33.Rf6+-) 1–0. Sakada,MV Con (1860) – Rosa,LF Lopes (1710), Sao Jose dos Pinhais BRA, Parana Ch, 2014.

9.0-0 Re8 10.Nc3 Ne4 (10...a6 11.a3+=) 11.Ne4+= Re4 12.Qc2 Re8 13.Rfd1 Qe7 14.Rac1 Nf6 15.Bf3 Ne4 16.Be4 Qe4 17.Nb5 Qc2 18.Rc2 Bf5 19.Rcd2 Re7 20.c5 dc5 21.Bg7 Kg7 22.bc5 a6 23.Nd4 Re5 24.Rc1 Rae8 25.Nf5 gf5 26.g3 R8e6 27.Rb2 Rc6 ½–½. Kaenel,Hansjuerg – Unzicker,Wolfgang, Biel Switzerland, 1979.

9.0-0 Re8 10.Nc3 Ne5 11.Qc2 Bg4 12.Rfd1 Be2 13.Qe2 a6 14.a4 c6 15.a5 Qe7 16.Nf3 Rad8 17.Rab1 Nfd7 18.Ne5 Ne5 19.Na4 f5 20.Nb6 Qf7 21.f3 Qe6= 22.Bd4 Re7 23.b5 Nf7 24.Bg7 Kg7 25.Rd3 Qf6 26.Qb2 Qb2 27.Rb2 g5 28.Kf2 Rde8 29.Rbb3 Kg6 30.bc6 bc6 31.Na4 f4 32.e4 Re5 33.c5 dc5 34.Rdc3 c4 35.Rc4 Ra5 36.Rc6 Kg7 37.Nc3 Re7 38.Ke2 Rd7 39.Rcb6 Ne5 40.Nd5 Ra2 41.Rb2 Rb2 42.Rb2 a5 43.Ra2 Ra7 44.g3 Ng6 45.Ra3 (45.Ra3 Kf7 46.Nb6=). Wolf,Wolfgang (2400) – Hartwich,Andreas (2260), BdF Pyramide, 2005.

9.Nc3 Ne5 10.a3 Re8 11.h3 Qe7 12.0-0 Bd7 13.Nd5 Nd5 14.cd5 Qh4 (better is 14...c5!? 15.dc6 Bc6+=) 15.f4 Qg3 16.Qe1?? (better is 16.fe5 Bh3 17.Rf2 Be5 18.Kf1+/-) 16...Qe3–/+ 17.Qf2 Nd3 18.Bd3 Qd3 19.Rac1 Ba4 20.f5 Qe3 21.fg6 hg6 22.Rc7 Qf2 23.Rf2 Re1 24.Kh2 Be5 25.g3 Re3 26.Rff7 Rd3 27.Nf5 gf5 28.Be5 de5 29.Rg7 Kh8 30.Rh7 Kg8 31.Rcg7 Kf8 32.Rb7 Kg8 33.Rbg7 ½–½. Simon – Schwarz,Chr, Reg.–Liga, Sbr.III–Homburg I, 1987.

9.Nf3 Re8 10.0-0 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 b6 14.Na3 Bb7 15.h3 Ne4 16.Bg7 Kg7 17.Qd4 Kg8 18.Nc2 Ne5 19.Rd1 Qf6 (20.Re1 c5 21.bc5 bc5–/+) 0–1. Maly,Wolfgang – Droessler,Uwe, HL021, (year?).

9.0-0 c5 10.Nc2 Bb2 11.Nba3 Ba1 12.Qa1 Qf6 13.Qb1 Nd2 0–1. brozal – ficherschi01, kurnik, 2012.

9.Qc2 Re8 10.0-0 c5 11.bc5 dc5 12.Nb5 Bb2 13.Qb2 a6 14.N5c3 Qf6 15.Qb3 Bf5 16.g4 Bc8 17.Ne4 Re4 18.Nc3 Re6 19.Nd5 Qd8 20.Rad1 Nd7 21.f4 Qh4 22.f5 gf5 23.gf5 Re5 24.Rf4 Qd8 25.Rg4 Kh8 26.e4 Re8 27.Qg3 Ne5 28.Rg7 Bd7 29.Kh1 (29...b5 30.Rg1+-) 1–0. Benassi,Aspasio – Dopper,Johan, corr TMK/A004, 1999.

9.Qc2 Re8 10.0-0 Nd7 11.Nc3 Ndf6 12.Ne4 Ne4 13.c5 Qh4 14.cd6+/- cd6 15.Nb5 Be5 16.Be5 Re5 17.f4 Re7 18.Nc7 Rb8 19.Nd5 Re8 20.Bb5 Re6 21.Qc7 Ra8 22.f5 gf5 23.Rf5 Qh6 24.Raf1 f6 25.Bc4 Kf8 26.Nf6!! Rf6 27.Qd8 (27...Kg7 28.Qg8#) 1–0. marekt – McGhee, ChessWorld.net, 2004.

9.Qc2 Re8 10.0-0 Qh4 11.Nc3 Nc3 12.Bc3 Bg4 13.Nf3 Qh6 14.h3 Bf5 15.Qb2 Nc6 16.Rfd1 Bc3 17.Qc3 Qg7 18.Qg7 Kg7 19.b5 Na5 20.Nd4 Be6 21.Rac1 b6 22.Bf3 Rab8 23.Nc6 Nc6 24.Bc6 Red8 25.Rc3 Bc8 26.Ra3 Bb7 27.Ra7 Bc6 28.bc6 Rdc8 29.Rd3 Ra8 30.Rda3 Ra7 31.Ra7 Kf6 32.a4 Ke5 33.a5 ba5 34.Ra5 Ke4 35.Ra3 Rb8 36.f3 Ke5 37.Ra7 Rc8 38.Kf2 Ke6 39.e4 Ke7 40.Ke3 Kd8 41.Kd4 Rb8 42.Ra6 Ke7 43.f4 h5 44.g4 hg4 45.hg4 Ke6 46.Ra7 Rc8 47.Rb7 Ke7 48.g5 Ke6 49.Ra7 Ke7 50.Kd5 Ke8 51.f5 gf5 52.ef5 Ke7 53.Ra1 Kf8 54.f6 Ke8 55.Ra7 1–0. Kaenel – Herbrechtsmeier, Winterthur 1983.

9.Qc2 Nf2 10.Kf2+= Qf6 11.Bf3 c5 12.Na3 cd4 13.Bd4 (< 13.ed4 Nc6 14.Qc3 g5=+ (< 14...Nd4 15.Rad1 Nf3 16.Qf6 Bf6 17.Bf6+=)) 13...Qe7 14.Qc3 Be5 15.c5 Bd4 16.ed4 Nc6 17.Rad1 dc5 18.bc5 Qh4 19.g3 Qf6 20.Kg2 Bf5 21.Nb5 Rad8 22.Rhe1 Rfe8 23.Re8 Re8 24.Nd6 Re7 25.Qb2?? Bh3!–/+ 26.Kf2 Bg4 27.Qc3 Nd4 28.Rd4 Bf3 29.Nf5 Re8?? 30.Rd8!!+- (30.Rd8 gf5 31.Qf6+-; 30.Qf3?! gf5 (< 30...Qf5 31.Qf5 gf5 32.Rd7+=) 31.Qf4 b6 32.cb6 Qb6=) 1–0. Durka – Jablonicky, Tatransky Pohar, 1977.

9.Nc3 Nc3 10.Bc3 c5 11.bc5 dc5 12.Nb5 Bc3 13.Nc3 Qa5 14.Qb3 Be6 15.0-0 Nd7 16.Ne4 Qc7 17.f4 h6 18.Rad1+= f5 19.Nd6 Nb6 20.Rd2 Rad8 21.Rfd1 Kh7 22.a4+/- Rd7 23.a5+- Nc8 24.Nb7! Rff7 25.Bf3+- Rd2 26.Rd2 Rd7 27.Rd7 Bd7 28.Qd3 Bc6 29.Bc6 Qc6 30.Qd5 Qd5 31.cd5 c4 32.Kf2 (32.Kf2 a6 33.d6+-) 1–0. Bruno,Fabio (2425) – Erdogdu,Mert (2400), 15. ETC Goteborg SWE, 2005.

9.Nc3 Nc3 10.Bc3 Nd7 11.0-0 Re8 12.Rc1 Nf6 13.Nb3 Qe7 14.Bf3 c5 15.bc5 dc5 16.Qe2 Bf5 17.Na5 Be4 18.Be4 Ne4 19.Bg7 Kg7 20.Qb2 Kg8 21.Qb7+= Qb7 22.Nb7 Rab8 23.Na5 Rb2 24.Ra1 Re6 25.Nb3 Ra6 26.f3 Nd2 27.Nd2 Rd2 ½–½. Espig,Lutz (2490) – Kaplan,Julio P (2445), Lublin, 1975.

9.Nd2 Nf2 10.Kf2 c5 11.bc5 dc5 12.N2f3 cd4 13.Bd4 Qe7 14.Bg7 Kg7 15.Qd5 Re8 16.Qd4 f6 17.Rhd1 Nc6 18.Qc3 Bg4 19.h3 Bf3 20.Bf3 Ne5 21.Bd5 Rac8 22.Rab1 b6 23.Rd4 Qc5 24.Rb3 Re7 25.Qb4 Qc7 26.a4 Rce8 27.Ra3 Nd7 28.Qd2 Nc5 29.Rg4 Qd6 30.Qc1 Re5 31.Rd4 Qe7 32.Bf3 Rc8 33.Bd5 f5 34.g3 g5 35.Kf3 Qf6 36.Rd2 Ne4 37.Rdd3 g4! 38.Kg2 gh3 39.Kh2 Nf2 40.Rd4 Ng4 41.Kh1 Rce8 42.Bf3 Re3 43.Re3 Ne3 44.Rh4? Ng4 45.Qd2 Qa1 46.Bd1 Qd1! (46...Qd1 47.Qd1 Nf2 48.Kh2 Nd1-+) 0–1. Cerny,Lumir (1770) – Janda,Zdenek (2135), Rumburk op, 2006.

9.0-0 a5 10.b5 Ne4 11.Nc3 Nc3 12.Bc3 Nd7 13.Qd2 a4 14.Nc2 Bc3 15.Qc3 Nc5 16.Nb4 Bf5 17.Rad1 a3 18.f3 Be6= 19.e4 Qb8 20.Qd4 Nd7 21.Nd5 Bd5 22.cd5 Nc5 23.b6 cb6 24.Bb5 Re5 25.Rb1 Qd8 26.Bc4 Re7 27.Rfe1 Rc7 28.Bb5 Qh4 29.Qd2 Qf6 30.Qe3 ½–½. Markus,Roland – Dopper,Johan, corr TKM/SF/02, 2001.

9.0-0 Nbd7 10.Nc3 Ne5 11.h3 Bd7 12.Qb3 Qc8 13.Kh2 Nc6 14.Nf3 Ne7 15.Rac1 h6 16.Rfd1 g5 17.Nd5 Ned5 18.cd5 Re7 19.Bd4 Qf8 20.Qb2 (worse is 20.Rc7 Ba4 21.Qa4 Rc7=) 20...Ne8 21.b5 f5 22.Bg7 Rg7 23.Qd4 Qe7 24.g3 a6 25.ba6 ba6 26.Bd3 Qf7 27.e4 fe4 28.Be4 Nf6 29.Rc7 Ne4 30.Qe4 Re8 31.Qd3 Rf8 32.Rc3 Qh5 33.Rd2?? (33.Kg1 Rgf7 34.Nh2 Rf2+=) 33...Qh3?? (better is 33...Bh3 34.Kg1 Re7-+) 34.Kg1+= Bb5 35.Qd4?? Re7 36.Re3 Re3 37.Qe3 Qf5 38.Nd4= Qd5 39.Ne6 Qf5? 40.Nf8+- Kf8 41.Rd6 h5 42.Rd8 (42.Rd8 Kg7 43.Qe7 Qf7 44.Qg5 Qg6 45.Rg8 Kg8 46.Qg6 Kf8 47.Qh5+-) 1–0. Miltner,Arndt (2410) – Mahdi,Khaled (2400), BL2–S, 1998. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.d4 e5 7.c4 ed4 8.Nd4 Re8)

9.0-0 Qe7+=.

9.Nd2 c5 10.Nc2 a6 11.b5 ab5= 12.cb5 Be6 13.a4 b6 14.e4 d5 15.ed5=+ Bd5 16.0-0= Nbd7 17.Ne3 Bb7 18.Ndc4 Qc7 19.Qd6 Qd8 20.Rfd1 Re6 21.Bf6 Rd6=+ 22.Bd8 Ba1? 23.Nd6+- Ra4 24.Nb7 (24...Bd4 25.Nc4+-) 1–0. Sternik,Ryszard – Milligan,Bernard, corr 3GMM–13, 1995.

8.0-0 c5 9.de5 de5 10.Ne5 (< 10.Be5 Ne5 11.Ne5 Nd7 12.Nd7 Qd7 13.Qd7 Bd7–/+) 10...Ne5 11.Be5 Qd1 12.Rd1 +=.

8.0-0 Ne4 9.Nbd2 Nd2 10.Nd2 c6 11.a4 f5 12.b5 e4 13.Nb3 Qg5 14.Qd2 Nf6 15.Ba3 Ne8 16.Na5 c5 17.dc5 Ba1 18.Ra1 (better 18.cd6 Bf6 19.d7 Bd7 20.Bf8+-) 18...b6?? (better 18...dc5 19.Bc5 Rf7+=) 19.Qd5+- Kg7 (19...Be6 20.Qa8 ba5 21.cd6 Qf6+-) 20.Qa8 f4 21.Qe4 (21.Qc8 f3 22.Bf1 Nf6+-) 21...ba5 (21...fe3 22.Qe3 Qe3 23.fe3 dc5 24.Bb2 Kh6 25.Nc6+-) 22.cd6 Nf6 (22...fe3 23.Qe3 Qe3 24.fe3+-) 23.Qf4 Qf4 24.ef4 Re8 25.Bf3 Ne4 (25...Bg4 26.Bg4 Ng4 27.d7+-) 26.c5 Re6 (26...Bf5 27.c6 Nd2 28.Bd5+-) 27.Bg4 (27.Bg4 Rd6 28.cd6 Bg4 29.Re1 Nd6 30.Bd6+-) 1–0. Ozen,Batuhan (2140) – Akdag,Omer Amir (1735), TCh–TUR 1st League, 2018. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 Ne4)

8.a4 Qe7 9.Nc3 c6 10.b5 Ne8 11.0-0 e4 12.Nd2 f5 13.Qc2 Ndf6 14.a5 c5 15.Nb3 Be6 16.dc5 dc5 17.Rfd1 Rc8 18.b6 (18.Rd2 Nd6 19.Na4 Nf7+/-) 18...a6 (18...ab6 19.ab6 Nd7 20.Ra7 Nb6 21.Na5+=) 19.Nd5 Bd5 20.cd5 Nd6 21.Rac1 (worse is 21.Nc5 Nd7 22.Bd4 Nc5 23.Bc5 Ba1 24.Ra1 Qe5+=) 21...Nd7 22.Ba3 Be5 23.g3 (23.Nc5 Qh4 24.g3 Qe7+/-) 23...Nf7 24.Nd2 (24.Bc5? Nc5 25.Nc5 Bd6-+) 24...Nd6 25.Nb3 Nf7 26.Nd2 (26.Bc5? Nc5 27.Nc5 Bd6-+) 26…Nd6 ½–½. Brauer,Christian (2150) – Gladyszev,Oleg (2325), Budapest Spring op, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5)

8.Qb3 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.h3 Qe7 12.a4 h5 (12...a5 13.b5+=) 13.a5 Bf5 14.a6 b6 15.b5 h4 16.0-0-0 (16.0-0 Rac8+/-) 16...Qd7 17.d5 g5 18.Na2 Ng6 19.Nb4 Ne5 20.Rdg1 Nh7 21.f3 ef3 22.gf3 Ng6 (worse is 22...Bh3 23.f4 Ng6 24.Bg7 Kg7 25.fg5+-) 23.Bg7 Kg7 24.Qc3 Kg8 25.Bf1 Qe7 26.e4 Bd7 27.Nd3 Qf8 (27...Rac8!?+=) 28.f4+/- f6 29.Be2 Re7 30.Bh5 Qh6 31.Bg6 Qg6 32.f5 Qe8 33.Qd4 Kf7 34.Rg4 Qf8 35.Rhg1 Qh6 36.Nf3 Rae8 37.Nf2 Rf8 38.Qd2 Qh5 39.Nd4 Ke8 40.Ne6 Be6 (40...Rg8+-) 41.de6 (41.fe6?! Qh6+-) 1–0. Kasjanov,V – Khamatgaleev,Alexej, URS–chT clubs, 1989. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Qb3)

8.b5 Qe7 9.0-0 e4 10.Nfd2 Re8 11.Nc3 Nf8 12.a4 h5 13.Ba3 h4 14.c5 h3 15.cd6 cd6 16.g3 Bf5 17.Nc4 Rad8 18.a5 (18.b6+= 0.31) 18...Qe6 19.Rc1 d5 20.Nd2 (20.Ne5 N8d7 21.Nd7 Qd7+= (21...Nd7? 22.Nd5 Qd5 23.Bc4+-)) 20...N8h7 (better is 20...N8d7!?=) 21.Na4+/- Bg4 22.Rc7 (22.Nc5 Be2 23.Ne6 Bd1 24.Nd8 Be2+-) 22...Be2 23.Qe2 Rc8? (better is 23...Rd7 24.Rfc1 Qf5+/-) 24.Rb7+- Rc2 25.Ra7?? (better is 25.Qd1 Qc8 26.Ra7+-) 25...Ng5+= 26.Bb4?? (26.Kh1 Nf3 27.Ra6–/+) 26...Qf5 (26...Nf3 27.Kh1 Qf5–/+) 27.Rd1? (27.Qd1 Rd2 28.Bd2 Nf3 29.Kh1 Nd2 30.f4–/+) 27...Nf3-+ 28.Kh1 Ng4 29.b6? Nd4! 30.ed4 Nf2 31.Kg1 Nd1 32.Qd1 Bd4 33.Kh1 Rd2! 34.Bd2 Qf2 35.Ra8 Qg2 0–1. Kaszynski,Bartlomiej – Pankiewicz,Tomasz, Ustrzyki Dolne op Poland, 1996.

8.Nc3 c5 9.Qb3=.

8.Nbd2 e4 9.Ng5 Qe7 10.Qc2 Re8 11.h4 c6 12.0-0-0 (12.h5!?=) 12...a5 13.a3 (better is 13.b5!?+=) 13...ab4 14.ab4 h6 15.Nh3 b5 16.f3 (16.cb5!? cb5 17.Nb1–/+) 16...bc4 17.fe4 Nb6 18.Nf2 d5 19.e5 Nfd7 20.Bg4 (20.Rdf1 Na4 21.h5 g5-+) 20...Nf8 (20...Qb4 21.e4-+) 21.Bc3 Na4 (21...Bg4 22.Ng4 h5 23.Nf2-+) 22.Nb1? (better is 22.Bc8!? Nc3 23.Qc3 Rec8 24.Rdf1–/+) 22...Nc3 23.Qc3 Bg4 24.Ng4 h5 25.Nf6 Bf6 26.ef6 Qe3 27.Rd2 (27.Qe3 Re3 28.Rhe1 Rb3-+) 27...Qc3 (better is 27...Qf4!? 28.Qf3 Qh6 29.g3-+) 28.Nc3 Ra1 29.Nb1 Rb8 30.Kb2 0–1. Bernardt,Rainer Georg – Gaponenko,Inna (2410), Staufer op, 2003. (=1.Nf3 Nf6 2.b4 g6 3.e3 Bg7 4.Bb2 0-0 5.Be2 d6 6.d4 Nbd7 7.c4 e5)

8.d5 e4 9.Nfd2 Re8 10.Nc3 Ne5 11.Qc2 Bf5 12.Nce4 Ne4 13.Ne4 Qh4 14.Bf3 Nf3 15.gf3 Re4 0–1. Schwedt – B Kristensen, Metz 1978.

9.b5 b6 10.de5 Ng4 11.Nc3 Nge5 12.Nd4 Nc5 13.f4 Ned7 14.Bf3 Bb7 15.Bb7 Nb7 16.Nd5 Bd4 (16...Ndc5 17.Nc6 Qd7 18.Bg7 Kg7 19.f5 gf5 20.Nce7+-) 17.Qd4 f6 18.f5 g5 19.h4 h6 (19...gh4!? 20.Qg4 Kh8 21.Qh4 Nbc5+-) 20.Qg4+- Rc8 (20...Rf7 21.Qh5+-) 21.Qh5 Qe8? (21...Rf7 22.Qg6 Kf8 23.Qh6 Ke8 24.hg5 fg5 25.Qe6 Kf8+-) 22.Qh6 1–0. DEFFM – Guestxxx, freechess.org, 2018.

9.Qb3 Ne4 10.Rd1 Qe7 11.Nbd2 Bb7 12.Ne4 Be4 13.Rac1 c5 14.Nd2 Bc6 (14...ed4? 15.Ne4 Qe4 16.Bf3+-) 15.d5 Bb7 16.a4 cb4 17.Qb4 a5 18.Qa3 Nc5 19.Nb3 Na6 20.Bc3 f5 21.Rb1 Rf7 22.c5 (better is 22.Rb2!?+=) 22...dc5+= (worse is 22...bc5 23.Na5 Bc8 24.Nc4+=; worse is 22...Nc5 23.Nc5 bc5 24.Rb6=) 23.d6 Qg5 24.Bf1 Rd8 25.Nd2 f4 (25...Nb4 26.Nc4 f4 27.ef4 Qf4 28.Qb2=) 26.Nc4 Bg2 27.ef4 (27.Bg2?? f3 28.Kf1 Qg2 (28...fg2?! 29.Kg1-+) 29.Ke1 Qg1 30.Kd2 Qf2 31.Kc1 Qe2-+) 27...ef4 (27...Rf4 28.Bg2 Qh4 29.Qb3+-) 28.Bg2 f3 29.Ne3 fg2 30.Rb6 Qf4 31.Rb2 (better is 31.Rd2!? Bd4 32.Bd4 (32.Ra6?? Be3 33.Qa2 Bd2 34.Qd2 Qc4-+) 32...cd4 33.Ra6 de3 34.Qe3 Qa4 35.Qd3=) 31...Rd6 32.Rd6 Qd6 33.Rd2 Qf4 34.Ng2 Qc7 35.Bg7 Kg7 36.Ne3 (36.Qc3 Kg8+=) 36...h5 37.Nd5 Qe5 38.Qc3 Qc3 39.Nc3 Rf3 40.Rd7 Kh6 41.Ra7 Rf6 42.h4 Rc6 43.f4 ½–½. Mrozinski,Werner – Mueller,Uwe (2175), Ruhrgebiet VK3, 1996. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 b6)

9.Nc3 Bb7 10.d5 a5 11.a3 Re8 12.Qc2 h6 13.Nd2 Nb8 (13...Bc8 14.e4+/-) 14.e4 Qd7 (14...Bc8 15.Qd3+=) 15.f4 (15.c5 bc5 16.bc5 dc5+/-) 15...Ng4 (15...ab4 16.ab4 Ra1 17.Ba1 ef4 18.Rf4+=) 16.Bg4+/- Qg4 17.fe5 Be5 18.Nf3 Bg7 (18...Nd7 19.Ne5 Ne5 20.Nb5+/-) 19.Rae1 (19.Nb5 Bb2 20.Qb2 Na6+/-) 19...Nd7 (19...ab4 20.h3 Qh5 21.ab4+=) 20.h3 (better is 20.ba5 Ra5 21.Nb5 Bb2 22.Qb2+=) 20...Qg3?? (better is 20...Qf4+=) 21.Ne2+- Qe1 22.Re1 Bb2 23.Qb2 Re4 24.Ned4 Re1 25.Ne1 Ne5 26.Qc3 ab4 27.ab4 Ba6 28.Nef3 Nc4 29.b5 Ne5 30.ba6 Nf3 31.Nf3 Ra6 32.Qc7 Ra1 33.Kh2 Rb1 34.Qd6 (34.Qd6 Rd1 35.Qb8 Kg7 36.Qe5 Kg8 37.Qe8 Kg7 38.Ne5+-) 1–0. Lippmann,Ulrich (2075) – Sarkosch,Nerssi (1950), Niedersachsen–ch Seniors, 2005.

9.Nc3 Bb7 10.d5 Qe7 11.Qc2 c6 12.dc6 Bc6 13.Rad1 Rfd8 14.Qd2 Nf8 15.b5 Bb7 16.Ba3 Ne8 17.Nd5 Bd5 18.cd5 Rac8 19.Rc1 e4 (19...Nd7 20.Rc6+/-) 20.Nd4+/- Bd4 21.Qd4 Nf6? (better is 21...Nd7+/-) 22.Rc6+- Ng4 1–0. usingprogram (2005) – pornpimon191, kurnik, 2011.

9.Nc3 c5 10.bc5 bc5 11.de5 de5 12.Nd5 Nd5 13.Qd5 Ba6 14.Rab1 Rb8 15.Rfd1 Nb6 16.Qd8 Rfd8 17.Be5 Rd1 18.Rd1 Be5 19.Ne5 f6 20.Nc6 Rb7 21.Rd8 Kg7 22.Na5 Rd7 23.Rd7 Nd7 24.f3 Ne5 25.f4 Nd7 26.Kf2 g5 27.g3 Kf7 28.e4 Ke7 29.Ke3 h6 30.Nc6 Kd6 31.Na7 Nb6 32.Nb5 Bb5 33.cb5 c4 34.Kd4 1–0. Orang4Utan (1770) – Slonik59, lichess.org, 2017.

9.de5 Ng4+=.

9.de5 de5 10.Ne5 (worse is 10.Be5 Ne5 11.Ne5 Qd1 12.Rd1 Nd5 13.cd5 Be5–/+) 10...Ne5 11.Be5 Qd1 12.Rd1 Be6 13.Nd2 Ng4 14.Bg7 Kg7 15.Nf3 Rad8 16.a3 b6 (16...Kf6 17.h3 Ne5 18.Nd2+/-) 17.c5 (17.Nd4 Ne5 18.f4 Bc4 19.fe5 Rd4 20.Rd4 Be2+-) 17...b5? (17...Nf6 18.Nd4 Bd5 19.f3+-) 18.h3 (18.Nd4!? Ne5 19.f4 Nc4 20.Bc4 bc4 21.Nc6 Rd1 22.Rd1 a6+-) 18...Nf6 19.Ne5 Rc8 20.Bf3 Bd5 21.Bd5 Nd5 22.Nc6! Ne3 23.Na7 Nd1 24.Nc8 Nc3 25.Nd6 Ra8 26.Kf1 f5 27.Ke1 Kf6 28.Kd2 Nd5 29.Nb5 Rd8 30.Nd6 Nc7 31.Kc3 Ne8 32.Ne8 Re8 33.c6 Re2 34.c7 Re8 35.b5 (35.b5+-) 1–0. carocan (1825) – pornpimon191, kurnik, 2011.

9.de5 Ng4 10.Nbd2 (10.Qd6 Nge5 11.Bd4 Nf3 12.Bf3 Nb6 13.Qd8 Rd8 14.Bg7 Kg7+/-) 10...de5 11.Qb3 Qc7 12.Ne4 Ngf6 13.Nfd2 Ne4 14.Ne4 b6 15.Rad1 c5 16.a3 Bb7 17.Nd6 Rad8 18.Nb7 Qb7 19.Rd6 Qc7 20.Rfd1 Nb8 ½–½. Bartle,Georg – Ophoff,Rigobert (1850), GER–chA Seniors, 2004.

9.ed4 b6 10.Nbd2 Bb7 11.Qb3 a5 12.a3 c5 13.d5 cb4 14.ab4 ab4 15.Qb4 Qc7 16.Nd4 Nd5 17.cd5 Bd5 18.Nb5 (better is 18.Rac1!? Nc5 19.Nb5+-) 18...Qc5+/- 19.Qc5 dc5 (19...bc5? 20.Bg7 Kg7 21.Nd6+-) 20.Bg7 Kg7 21.Ra8 Ra8 22.Nc7 Ra2 23.Bb5?? (better is 23.Rd1 Bc6 24.Bb5 Bb5 25.Nb5+=) 23...Rd2–/+ 24.Bd7 Bc4 25.Ne8 Kh6 26.Rc1? b5?? 27.Bc6= Bd5?? 28.Bd5 Rd5 29.h3?? c4= 30.Nf6 Rd2 31.Rb1 c3 32.Rb5? c2-+ 33.Ng4 Kg7 34.Rc5 Rd1 35.Kh2 c1Q 36.Rc1 Rc1 37.Kg3 Rc3 38.f3 f5 39.Ne5 Kf6 40.Nd7 Kg5 41.Ne5 f4 42.Kh2 Kf5 43.Nd7 g5 44.Nb6 h5 45.Nd5 Ra3 46.Nb4 Ke5 47.Nc2 Ra8 48.Ne1 Ra2 49.Nd3 (49.Nd3 Kd4 50.Nb4-+). elsh1403 – cibrian, kurnik, 2011.

9.ed4 c6 10.Qb3 Nb6 11.a3 Re8 12.Nc3 d5 13.cd5 Nbd5 14.Bc4 Bg4 15.Ne5 Be6 16.Nd5 Bd5 17.Bd5 Nd5 18.Rfe1 Be5 19.de5 Re6 20.Rad1 Qc7 21.Rc1 a6 22.Qd5 Rae8 23.Qb3 Qb6 24.Qg3 c5 25.Rc5 Qd8 26.Kh1 Qd2 27.Qc3 Qf2 28.Qe3 Qb2 29.Rc3 Re5 30.Qe5 Re5 31.Rcc1 Re1 32.Re1 Qa3 33.Re8 Kg7 34.h3 Qb4 35.Rb8 Qe1 36.Kh2 Qe5 0–1. Mpp1964 – Hurzzz (1700), lichess.org, 2018.

9.ed4 d5 10.Nc3 dc4 11.Bc4 Nb6 12.Bb3 Nfd5 13.Nd5 Nd5 14.Qd2 c6 15.Rac1 Qd6 16.b5 cb5 17.Rc5 Nf6 18.Ne5 (18.Rb5 b6 19.Rc1 Ba6+=) 18...Nd7 (better is 18...Ne4!? 19.Qf4 Nc5 20.Bf7 Kh8 21.dc5 Qf6+=) 19.Rd5+= Qe7 20.Re1 Ne5 21.Rde5 (better is 21.de5!? a6 22.Bd4=) 21...Be5–/+ 22.Re5 Be6?? (better is 22...Qd6–/+) 23.d5+- Rad8 24.Qe2 Qb4?? (24...b4 25.de6 f6 26.Ra5+-) 25.Re6 (better is 25.de6 h6 26.e7+-) 25...fe6?! (25...Qf4 26.Re4 Qf5+-) 26.Qe5 (better is 26.de6 Qb3 27.ab3+-) 26...Rd7?? (better is 26...Rf6! 27.d6 h6–/+) 27.de6+- Rd4 28.Bd4 Rf6 29.e7 Kg7 30.Qf6 Kh6 31.Be3 Kh5 32.Qg5 1–0. Koester,Roman (2120) – Bahlke,Wolfgang (2085), Hessenliga, 2006. (=1.b4 Nf6 2.Bb2 g6 3.c4 Bg7 4.e3 0-0 5.Nf3 d6 6.Be2 Nbd7 7.d4 e5 8.0-0 ed4)

9.ed4 d5 10.c5 Ne4 11.Qb3 c6 12.Rd1 Re8 13.Bf1 Ndf6 14.Ne5 Nh5 15.Nd2 Nd2 16.Rd2 f6 17.Nd3 Bf5 18.b5 Bd3 19.Rd3 Nf4 20.Re3 Qd7 21.Rae1 Ne6 22.bc6 bc6 23.Ba6 Reb8 24.Qc2 Re8 25.Qb3 Reb8 26.Qc2 ½–½. Schlindwein,Rolf (2400) – Wagner,Anselm (2410), BL2–Sued, 2005. (=1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 Nbd7 7.b4 e5 8.Bb2 ed4)

9.ed4 d5 10.c5 Re8 11.Nc3 c6 12.Re1 Nf8 13.b5 Qc7 14.Qa4 Bf5 15.bc6 bc6 16.Ne5 Rac8 17.g4 Bd7 18.g5 Nh5 19.Bh5 gh5 20.f4 Bf5 21.Rf1 h6 22.gh6 Bh6 23.Qd1 f6 24.Qh5 fe5 25.Qf5 ed4 26.Kh1 Qf7 27.Rg1 Kh8 28.Qf7 1–0. Woelfelschneider,Peter – Pleschke,Helmut, TRE58.01, 2001.

9.ed4 d5 10.c5 Re8 11.Nc3 Nf8 12.Re1 Ne6 13.Ne5 c6 14.b5 Qc7 15.Nf3 Nf4 16.Qb3 Ne2 17.Re2 Re2 18.Ne2 Bg4 19.a4 Ne4 20.Rc1 Re8 21.Ng3 Bf3 22.Qf3 Qa5 23.bc6 bc6 24.Ne4 Re4 25.Qd1 Qb4 26.Bc3 Qa3 27.g3 a6 28.a5 Bd4! 29.Bd4 Rd4! 30.Qd4 Qc1 31.Kg2 Qc2 32.Kf1 Qe4 33.Qb2 d4 34.Qb4–/+ Kg7 35.h4 Qd3 36.Ke1 h6 37.Qb2 Qc4 38.Qa3 d3 39.Qb2 Kh7 40.Kd2 Qc5 41.Kd3 Qa5 42.Qf6 Qf5 43.Qf5 gf5 44.h5?! f4 45.gf4 Kg7 46.Ke3 Kf6 47.Ke4 a5 48.Kd3 0–1. Braincan (2515) – os (2360), ICC, 2002.

9.ed4 Ne4 10.Qb3 Ndf6 11.Nc3 Bg4 12.Rad1 Nc3 13.Bc3 d5 14.c5 Ne4 15.Bb2 Re8 16.Rfe1 c6 17.h3 Bf3 18.Bf3 Qh4 19.Be4 Re4 20.Re4 Qe4 21.Qd3 f5 22.Qd2 Re8 23.Kf1 Bh6 24.Qe1 Kf7 25.Qe4 de4 26.d5 cd5 27.Rd5 Bf4 28.g3 Ke6 29.Rd1 Bc7 30.Ke2 Rd8+= 31.Rc1 Rd3 32.c6 b5 33.f4?? Rd5?? 34.Be5+= Be5 35.fe5 Rd8 36.Rc5 a6 37.h4 Rc8 38.Ke3+= Rf8 39.Kd4 Rd8= 40.Ke3 Ke7 41.g4 fg4 42.Ke4 g3 43.Kf3 Rd3 44.Kg2 Kd8 45.e6 Kc7?? 46.Re5+- Rd8 47.e7 Re8 48.Re6 (48.Re6 Kb6 49.Kg3+-; 48.Kg3?! Kc6 49.Re6 Kd5 50.Ra6 Re7=) 1–0. Apgar,Robert – Mirabile,Tim (2215), US Amateur Team East, Parsipanny USA, 2002.

9.ed4 Ne4 10.Nc3 Nc3 11.Bc3 c5 12.b5 b6 13.a4 cd4 14.Nd4 Nc5 15.Qc2 Re8 16.Nc6 Qh4 17.Bg7 Kg7 18.Rfe1 Bf5 19.Qc3 f6 20.a5 Ne4 21.Qd4 Qg5 22.f3 Bh3 23.g4 Nd2 24.f4 Qc5 25.Qc5 dc5 26.ab6 Re2 27.Re2 Nc4 28.Ra7 Ra7 29.ba7 Nb6 30.Re8 Bg4 31.a8Q Na8 32.Ra8 Bf3 33.Ra6 c4 34.Ra7 Kh6 35.Nd4 Be4 36.b6 c3 37.Rc7 1–0. Orang4Utan (1640) – decluc04 (1610), lichess.org, 2017.

9.ed4 Re8= 10.Nc3 Nb6 11.Qb3 a5 12.ba5 Ra5 13.Rfe1 Bf5 14.Rad1 Ra8 (14...Be6 15.Bd3=) 15.c5+= Be6 16.Qb5 Nbd5 17.Nd5 (17.Qb7? Rb8 18.Qa6 Rb2-+) 17...Bd5 18.a3 Bc6 19.Qc4 Ne4 20.cd6 (20.Bc1 Qf6 21.cd6 Nd6=+) 20...Nd6 21.Qb4 Bd5 22.Rc1 c6 23.Ne5 Bf8 24.Qd2 (24.Qc3 Ne4 25.Qf3 Bh6–/+) 24...Ne4–/+ 25.Qf4 Ba3 26.Ba3 Ra3 27.Bf3 f5 28.Be4 (28.Rb1 Re7=+) 28...fe4 29.Ra1 Ra1 (29...Qa5 30.Rab1 Rf8 31.Qg5–/+) 30.Ra1=+ Qb6 31.Ng4 Qd4 32.Qf6 Qd2 33.h3 Bc4 ½–½. Krasny,Henryk Jan – Dopper,Johan, corr 3GMM–31, 1996.

9.ed4 Re8 10.Re1 Nf8 (10...a5 11.b5=) 11.Nc3 Bg4 12.h3 Bf3 (12...Bf5 13.a3+=) 13.Bf3 (worse 13.gf3 Nh5 14.Qd2 Ne6-/+) 13...c6 14.Qd2 Qd7 (14...Re1 15.Re1 d5 16.cd5 cd5 17.Na4+=) 15.a4 White prepares b5 (15.d5 c5 16.a3 a6+/-) 15...Re1 16.Re1 Re8 (16...d5 17.cd5 Nd5 18.Nd5 cd5 19.Qg5+=) 17.b5 (17.Re8 Ne8 18.d5 c5+=) 17...Re1+= 18.Qe1 Ne6 19.Qe3 Ne8 (19...d5 20.cd5 Nd5 21.Nd5 cd5 22.Bc3=) 20.Ne4 (20.d5 cd5 21.Bd5 Nc5+=) 20...N8c7 (20...c5 21.Ng3=) 21.Bc3 (21.Qa3 A) 21...Bd4?? 22.Bd4 Ne8 23.Ba7+-; B) 21...cb5 B1) worse 22.Nd6 bc4 (22...Bd4?! 23.Nb5 Bb2 24.Qb2=; 22...Nd4?! 23.Bd4 Bd4 24.Nb5=) 23.Nc4 Nd4-/+; B2) 22.cb5?! d5 (22...Bd4 23.Bd4 Ne8 24.Ba7+-) 23.Nc5 Qd6+=; B3) 22.d5 Nd4 23.Bd4 Bd4 B31) worse 24.Qd6 Qd6 25.Nd6 ba4-/+; B32) 24.cb5?! Be5= (24...Nd5? 25.Qd3 Be5 26.Qd5+-); B33) 24.ab5+=; C) worse 21...Nd4 22.Bd4 Bd4 23.Qd6 (23.Nd6? Qe7 24.Kf1 Ne6-+) 23...Qd6 24.Nd6+=; D) 21...d5 22.cd5 Nd5= (22...Qd5?? 23.Nf6 Bf6 24.Bd5 Nd5 25.Qd6+-; 22...Nd4 23.Bd4 Bd4 24.Qc5+-)) 21...d5= 22.Nd2 (22.Nc5!? Nc5 23.dc5=) 22...dc4-/+ 23.Nc4 Nd5 (23...Nd4 24.Bd4 Bd4 25.bc6 bc6 26.Qf4-/+) 24.Bd5 (better 24.Ne5!? Ne3 25.Nd7=) 24...Qd5-/+ (24...cd5?! 25.Ne5 Qe7 26.a5=) 25.Na3 (25.bc6 Qc6 (worse 25...Qc4 26.cb7 Qc7 27.d5 Bc3 28.de6 fe6 29.Qa7+=) 26.Ne5 Be5 27.de5 Qa4-/+) 25...Qb3-+ 26.Bd2 (better 26.d5!? Bc3 27.de6 fe6 28.bc6 bc6 29.Nc2-+) 26...Qa4 27.bc6 Qc6 (27...bc6 28.Be1-+) 28.Qd3 Bd4 29.Nb5 Qc5 30.Nd4 Qd4 (worse 30...Nd4 31.Be3+=) 31.Qc2 Qc5 32.Qd3 Qc7 33.Bc3 a6 34.Bb2 Qd8 (better 34...h5!? 35.Qe3 Kf8 36.Be5-+) 35.Qc3 f6! 36.Qf6 (36.Qf3!?-+) 36...Qf6 37.Bf6 Kf7 38.Bc3 b5 39.g3 (39.Kf1 Nd8-+) 39...Nc5 40.f4 (40.Kf1 Ke6-+) 40...Na4 (40...Nd3!? 41.Kf1 b4 42.Bd4-+) 41.Bb4 Nb6 42.Kf2 Nd5 43.Bc5 b4 44.Ke2 b3 45.Bd4 Nb4 (better 45...a5!?-+) 46.Kd2-/+ Nc6 (46...Nc2!? 47.Bc3 Ke6-/+) 47.Kc3?? (better 47.Bb2-/+) 47…a5 (47...a5 48.Bh8 Kg8-/+) 0-1. Chess__Academy (2455) - zsolti_83 (2555), Rated Bullet game, lichess.org, 2021.

9.Qd4 Nb6 10.a4 Bd7 11.b5 Be6 12.Rc1 Ne8 13.Qd2 Bb2 14.Qb2 Nd7 15.Nbd2 Nc5 16.Nd4 Qg5 17.Qc2 Bh3 18.Bf3 Nf6 19.Kh1 Bd7 20.N4b3 Bf5 21.e4 Bg4 22.Qc3 Nb3 23.Nb3 Qf4 24.e5 Bf3 25.ef6 Bg4 26.Qg3 Qg3 27.hg3 a6 28.Nd4 Rfe8 29.Kg1 Re5 30.f3 Bd7 31.g4 Rae8 32.Kf2 h5 33.gh5 gh5 34.Rh1 Kh7 35.g4 Kg6 36.gh5 Rh5 37.Rh5 Kh5 38.Rg1 ab5 39.ab5 Be6 40.f4 Bg4 41.Rh1 Kg6 42.Rg1 ½–½. Torassa – Marotz, 1987.

9.Bd4 a5 10.a3 Re8=.

9.Bd4 c5 10.Bb2 cb4 11.Qd6 Qb6=.

9.Bd4 Re8 10.Nbd2 (10.a3 a5=) 10...c5 11.bc5 dc5 12.Bf6 (12.Bc3 Qe7=) 12...Nf6 13.Rb1 b6 14.Nb3 (14.Qb3 Bf5 15.Rbd1 Qe7=+) 14...Ne4 (14...Bf5 15.Qd8 Rad8 16.Rbd1–/+) 15.Qd8 Rd8 16.Rbd1 (16.h3 Be6 17.Rfc1 Rd6–/+) 16...Be6 17.Nfd2 (17.Bd3 Nc3 18.Rd2 Na2-+) 17...Nc3-+ 18.Bf3 Nd1 19.Rd1 (19.Ba8 Nc3 20.Bc6-+) 19...Rac8 20.Rc1 (20.Kf1 Rc7-+) 20...Bh6 (20...a5 21.Rc2-+) 21.h3 (21.Ne4 f5 22.Ned2 Rd7-+) 21...f5 (21...Rd3 22.Ne4-+) 22.Kf1 (22.Rd1 Bg7-+) 22...Rc7 23.Ke2 Bg7 24.Rc2 Rcd7 25.Ke1 Rd3 26.Be2 Rc3 27.Kd1 a5 28.Rc3 Bc3 29.Kc2 Bf6 30.Nf3 Kf7 31.h4 Bc8 32.g3 h6 33.Nfd2 f4 34.ef4? Bf5 35.Kd1 a4 (36.Bf3 ab3 37.ab3 Bc3 38.Bd5 Be6-+) 0–1. Grehl,Siegfried – Dopper,Johan, corr SOK–93–95, 1993.

9.Nd4 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Ne5 13.h3 Qe7 14.Nc3 Bd7 15.Qb3 Ra8 16.Bb2 Nc6 17.Ndb5 Qd8 18.Nd5+= Nd5 19.cd5 Bb2 20.Qb2 Ne7 21.Nc3 h6 22.Rc1 Kh7 23.Ne4 Ng8 24.Qd4 b6 25.h4 Ra7 26.h5 Qe7 27.Nc3 Nf6 28.hg6 fg6 29.e4 Ra8 30.Bb5 Nh5 31.Bd7 Qd7 32.f3 Qe7 33.Qd2 Qe5 34.Ne2 Ra7 35.Rc6 Qe7 36.g3 g5 37.g4 Nf6 38.Rc3 Kh8 39.Qd4 Kh7 40.Ng3 Ra1 41.Nf1 Qg7 42.Rc2 Ne8 43.Qd3 Qe5 44.Kg2 ½–½. Woelfelschneider,Peter – Henne, 2010.

9.Nd4 Ne5 10.Nd2=.

10.Nb5 cb4 11.a3 ba3 12.Ra3 Nc5 13.Na7 Be6 (13...Bf5 14.Nb5 Ra6 15.Re1+=) 14.Nb5+/- Ra6 15.Nd2 (15.Ra6 ba6 16.Nd6 Qb6+=) 15...Qb6 16.Nb3 Rd8 17.N3d4 d5 18.Qc2 dc4 19.Ne6 Ne6 20.Bc4 Ra3 21.Na3 Ng4 22.Bg7 Qd6 23.g3 Ng7 24.Nb5 Qe5 (24...Qe7 25.Rd1+=) 25.Rd1+/- Rd1 (25...Qe7 26.Bf7! Kf7 27.Qc4 Kf6 28.Qg4+/-) 26.Qd1 h5 27.Qd8 Kh7 28.Bf7 (better is 28.Nd4!? Ne6 29.Ne6 fe6 30.Qd7 Qg7 31.Qe6+/-) 28...Qb5 29.Qg8 Kh6 30.Qh8 Kg5 31.Qg7 Qb1 32.Kg2 Qe4 33.Kg1 ½–½. Bezold,Michael (2475) – Gabriel,Christian (2545), Altensteig, 1994. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

10.Nb5 cb4 11.Qd6 a6 12.Nd4 Qb6 13.Qb6 (13.Qg3 Ne4 14.Qh4 Ndc5+=) 13...Nb6= 14.a3 Na4 15.Bc1 ba3 16.Ba3 Re8 17.Bf3 (17.Bb4 Nc5=) 17...Ne4 18.Rd1 f5 19.Be4 (19.Bc1 Nac5=) 19...Re4 (19...fe4 20.c5=+) 20.Nd2 (20.Rd3 Re8=) 20...Re8 (20...Bd4 21.Ne4 Ba1 22.Rd8 Kf7 23.Nd6 Ke6 24.Nc8=+) 21.N2b3 Be6 (21...Kf7 22.Rd3=+) 22.Rac1 (22.Ne6 Re6 23.Nd4 Re4=) 22...Bf7=+ 23.Na5 b6 24.Nb7 Be5 25.Nc6 (25.Nf3 Bf6=+) 25...Bb2= 26.Bb2 Nb2 27.Rd7 Be6 (27...Nc4 28.Rf7 Kf7 29.Rc4=) 28.Rd4 a5 (28...Nc4 29.Rdc4 Bc4 30.Rc4 b5=) 29.c5 (29.Nd6!? Rf8 30.Rb1+=) 29...bc5=+ 30.Nc5 (30.Rd2 Nc4 31.Rdd1 a4=+) 30...a4 31.Ne6 (31.Rd6 Bc4=+) 31...Re6 32.Rd7 a3 33.Nb4 Rb6 (33...Rf6!?=+) 34.Rcc7 ½–½. Labahn,Wolfgang – Dopper,Johan, corr ICCF TT–4–90, 1993.

10.Nb5 cb4 11.Nd6 Nc5= 12.a3 ba3 13.Ba3 Nfd7 (13...Qb6 14.Ra2=) 14.Ra2+= Qc7 15.Rd2 a6 16.Bg4 Nb6 17.Nc8 Nc8 18.Rd5 b6 19.Bc5 bc5 20.Bc8 Rfc8 21.Qf3 a5 22.Rfd1 Rd8 23.Na3 a4 (23...Be5!? 24.Kh1 Rab8+=) 24.Rd7+/- Rd7 25.Qa8 Bf8 26.Qa4 Rd1 27.Qd1 Qa5 28.Nb5 Qa2 29.Qc1 Qe2 30.g3 h5 31.Nc7 Bg7 32.Nd5 Bb2 33.Qf1 Qc2 34.Nf4 Be5 35.Qd3 Qc1 36.Kg2 Bf4 37.gf4 Qa1 (37...Kg7 38.Qd5 Qa3 39.f5+/-) 38.Qd5 (38.f5 Kg7 39.fg6 fg6 40.Qd7 Kh6+-) 38...Qa7 39.f5 Kg7 40.fg6 fg6 41.h4 Qe7 42.Kg3 Qc7 43.f4 Qc8 44.Qe5 Kf7 45.Qg5 Qc7 46.Qd5 Kf6 47.Kf3 Qc8 48.Ke4 Qh3 49.Qd6 (49.Qg5 Kf7 50.f5 Qh1 51.Ke5 Qa1 52.Kd6 Qa6 53.Kc5 Qa3 54.Kc6 Qa6 55.Kd5 Qa8 56.Kd4 Qa1 57.Kd3 Qf1 58.Kd2 Qf2 59.Kc3 Qe1 60.Kc2 Qf2 61.Kb3 gf5 62.Qh5 Ke7 63.Qg5 Ke6 64.Qh6 Ke7+-) 49...Kf7 50.Qc5 Qh4 51.Qc7 Ke6 52.Qc8 Ke7 53.Kd5?? (better is 53.Qb7 Kf8 54.Ke5+-) 53...Qh1+= 54.e4 (54.Kc5!? Qe4 55.Qc7 Ke8 56.Qb8 Kf7 57.Qb3+=) 54...Qd1= 55.Kc5? (better is 55.Kc6 Qd6 56.Kb7 Qf4 57.Qc5 Qd6 58.Qg5 Kd7 59.Qb5 Ke7 60.c5=) 55…Qd6-+ ½–½. Kaenel,Hansjuerg (2415) – Gruenenwald,Joerg (2345), SUI–ch Graechen, 1999. (=1.Nf3 g6 2.d4 Bg7 3.e3 Nf6 4.c4 0-0 5.Be2 d6 6.0-0 Nbd7 7.b4 e5 8.Bb2)

10.Nb5 Ne5 11.Nd6+- (11.Qd6?! Ne4 12.Qd5 Nf3 13.Bf3 Bb2 14.Be4 Ba1 15.Qc5 Bf6+=) 11...Neg4 (11...Ne8!? 12.Nc8 Qc8+-) 12.bc5+- Nh2? (better 12...Qc7+-) 13.Kh2 Be6 (13...Ng4 14.Bg4 Bb2 15.Bc8 Rc8 16.Nc8 Qh4 17.Kg1 Rc8+-) 14.Kg1 b6 (14...Qc7 15.Nc3+-) 15.Bf3 (15.cb6 ab6 16.Be5 Ra5+-) 15...Rb8 16.c6 Bc4 (16...Qe7 17.Ba3 Rfd8+-) 17.Nc4 Qd1 18.Rd1 Rbd8 (18...b5 19.Nd6 Ne8 20.Bg7 Kg7 21.Ne8 Rbe8 22.Rd7+-) 19.Nc3 Nh5 (19...Ra8 20.Rac1 h5 21.Ba3+-) 20.Bh5 (better 20.Rd8!? Rd8 21.Nd6 Rf8+-) 20...gh5 21.c7 Rc8 22.Rd7 f6 (22...Ra8 23.Ba3 Rfe8 24.Rc1+-) 23.Nd6 Ra8 24.Nd5 h4 25.Ne7 Kh8 26.Rd8! a5 (26...Rad8 27.cd8Q; 26...Rfd8 27.Nf7) 27.Nf7 1–0. DEFFM – GuestNPVB, freechess.org, 2018.

10.bc5 dc5= 11.Nb3 (11.Nb5 Qb6 12.Bc3 Rd8=) 11...b6 (11...Qe7 12.N1d2=) 12.N1d2 (12.Qc2 Bb7=) 12...Qc7 13.Bf3 (13.Qc2 Bb7=) 13...Rb8 14.Ne4 (14.Qc2 Ne5=) 14...Ne4=+ 15.Bg7 Nf2 16.Rf2 (16.Kf2 Kg7) 16...Kg7 17.Qe2 (17.Bd5 Ne5 18.Qe2 Bg4–/+) 17...f5 18.g3 (18.Raf1 Bb7–/+) 18...Ba6 (18...Bb7 19.Bb7 Qb7 20.Rd1–/+) 19.Nd2 (19.Raf1 Ne5 20.Bd5 b5–/+) 19...Rbe8 20.Nf1 (20.a4 Ne5–/+) 20...Nf6 (20...Ne5 21.Bd5–/+) 21.Re1 (21.Nd2 Bb7–/+) 21...Qe5 22.Qc2 Ne4-+ 23.Be4 Qe4 24.Qc3 Kg8 25.Nd2–/+ Qc6 26.h4 Bb7-+ 27.Kh2 f4 28.e4 fg3 29.Qg3 Rf2 30.Qf2 Qd6 31.Kg1 Rf8 32.Qg2?? Qd4 33.Kh1 Rf4 34.Qh2 Re4! 35.Ne4 Be4 36.Re4 Qe4 37.Kg1 Qb1 38.Kg2 Qa2 39.Kg3 Qh2 40.Kh2 a5 (41.Kh3 a4-+) 0–1. Hasler,Ulrich – Dopper,Johan, corr TT–SF–3, 1993.

10.Nf3 cb4 11.Qd6 Qb6 12.Qb6 Nb6=.

10.Qb3 Ne4 11.a3 Qe7 12.Ra2 a5 13.Rd1 (13.f3 Nef6=+) 13...Qh4 (13...ab4!? 14.a4 Qh4-/+) 14.g3 Qe7 15.Bf3 (15.Nd2 Nd2 16.Rd2 ab4 17.ab4 Ra2 18.Qa2 Nf6=) 15...Ndf6 (15...ab4 16.a4-/+) 16.Nd2 Bg4 (16...Ng5=+) 17.Qd3? (17.Ne4!? Bf3 18.Nf6 Qf6 19.Nf3 Qf3 20.Bg7 Kg7 21.Rad2=) 17...Ng5 (17...Bf3 18.N4f3 ab4 19.Bd4-+) 18.Be2 (18.b5!?=+) 18...Be2 19.Ne2 Nh3 20.Kg2 Ng4 21.Rf1 (21.Re1 Nhf2 22.Qb1 Qe3 23.Bg7 Nd3-+) 21...Ngf2 (21...Nhf2 22.Rf2 Nf2 23.Kf2 Bb2 24.Nf4-+) 22.Rf2? (22.Qb1 Bb2 23.Qb2 Qe3 24.Ng1-+) 22...Nf2 23.Kf2 Bb2 24.Nf4 Bg7 25.Nd5 Qd7 26.Nf3 (26.b5 Rad8 27.b6-+) 26...c6 (better 26...ab4 27.Nb4 Ra4 28.Nd5-+) 27.Nf4?? (better 27.Nb6 Qe6 28.Na8 Ra8 29.Rd2-/+) 27...Qe7 (27...ab4!? 28.Qb3 Qf5 29.ab4 Ra2 30.Qa2-+) 28.Re2 (28.b5 Rac8-+) 28...Qf6 (28...ab4 29.ab4 Ra4 30.b5-+) 29.h4 (29.b5 Rac8-+) 29...Rad8 (29...ab4 30.ab4 Ra4 31.b5-+) 30.Rc2 (30.ba5 Qe7-+) 30...Bh6 31.b5 Rd7 32.bc6 bc6 33.c5 d5 34.Qd4 Qf5 35.Rc1 (35.Qa4 Bf4 36.gf4 Ra7-+) 35...Rde7 36.Re1 Re4 (36...Qc2!? 37.Re2 Qc1 38.Re1 Qa3 39.Ra1-+) 37.Qd2 Bg7 (37...a4 38.Nd4 Qf6 39.Re2-+) 38.Re2 (38.Qa5 d4 39.ed4 Re1 40.Ne1 Bd4 41.Kg2 Bc5-+) 38...Rb8 (better 38...h6!? 39.Qa5 g5 40.hg5 hg5 41.g4 Qg4 42.Ng2-+) 39.Qa5 Qd7 40.Nd3 (40.Nd4 Bd4 41.ed4 Re2 42.Ke2 Qg4 43.Kd2 Qg3-+) 40...Rb5 41.Qd2 (41.Qa8 Re8 42.Qa6 Bc3-+) 41...Qc7 (41...Rb3 42.Kg2-+) 42.Nd4 Rb8 (42...Rg4 43.Nf4 Rc5 44.Qd3-+) 43.Nf3 (43.Kg2 Ra8 44.Nf2 Ree8-+) 43...Rbe8 (43...Rb3 44.Nd4 Ra3 45.h5-+) 44.Nb4 (44.Kg2 Qa7-+) 44...d4! 45.Nc2 (45.ed4 Re2 Pinning (45...Re2 Deflection); 45.Nd4 Bd4 Decoy) 45...de3 (better 45...Rg4 46.Kf1 Qg3 47.Nce1-+) 46.Re3 Re3 47.Ne3 Bh6 (better 47...Qe7-+) 48.Nd5 (48.Ng5-+) 48...cd5 49.Qh6 (49.Qd5 Be3 50.Kg2 Bc5-+) 49…Qc5 (49...Qc5 50.Kf1 Qc4 51.Kg1 Qd3-+) 0-1. Rodrigue_Lemieux,Shawn (2255) - Tanaka,Taira Tyler (2105), Quebec Open, 2019.

10.Nc3 Nb6 11.Qb3 Bg4 12.Bg4 Ng4 13.Nd5 Ne5 14.Nb6 ab6 15.h3 Qd7 16.Rfd1 Re7 17.a4 Qe8 18.Ne2 Qc6 19.Rd4 Nd7 20.Nf4 Bd4 21.Nd5 Bf6 22.Bf6 Re6 23.b5 Nc5 24.Qc2?? (better is 24.bc6 Nb3 25.Nc7+/-) 24...Qd7= 25.Bb2 Rf8 (25...Kf8!?=) 26.Nf6+= Rf6 27.Bf6 Qe6 28.Bb2 f6 29.a5 ba5 30.Ra5 Qe4 31.Qe4 Ne4 32.f3 Nc5 33.Ra7 Kf7 34.Bd4 Rb8 35.e4 Ke6 36.g4 Nd3 ½–½. Krnic,Zdenko – Minic,Dragoljub, YUG–chT, 1979. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

10.Nd2 a6 11.N2b3 Qe7 12.Nf3 Ne5 (12...b6 13.a4 c5 14.b5 Bb7 15.a5 Reb8 16.Re1= 0.03) 13.c5 (13.a3 Nfd7 (13...Rd8= 14.Nbd4 a5 15.b5 a4 16.Qc2= 0.19) 14.Bd4 b6 15.Qc2 Nf6 16.c5= 0.00) 13...Neg4 (13...Rd8 14.Qe1= Nfg4 15.Ne5 Be5 16.Be5= 0.06) 14.cd6+= cd6 15.Bd4 (15.Rc1 Ne3 16.Bf6 Nd1 17.Be7 Nc3–/+) 15...Bh6 (15...Ne5 16.Ne5 de5 17.Bc5=) 16.Nfd2 (16.Bc4 Bg7+=; 16.Nbd2+= 0.44) 16...Bf5 (16...Bg7 17.Nc4 Ne5 18.Nb6+=) 17.Na5 (17.Nc4 d5 18.Nb6 Qd6+=) 17...Rac8 (17...Ne5 18.Ndc4=) 18.Bf3 d5 19.Bc5? (better is 19.a3=) 19...Qc7-+ 20.Bg4 Ng4 (20...Bg4?! 21.Nf3 b6 22.Bd4 ba5 23.Bf6+=) 21.Nf3 Be4 22.Re1 (22.g3 b6 23.Nb3 bc5 24.Nc5 Qb6-+) 22...b6 23.h3 Bf3 (23...bc5?! 24.hg4 cb4 25.Nb3-+; 23...ba5?! 24.hg4 ab4 25.Bb4–/+) 24.Qf3 Qh2 (24...bc5?! 25.hg4 cb4 26.Nb3–/+; 24...ba5?! 25.hg4 ab4 26.Bb4+=) 25.Kf1 Ne5 (25...bc5?! 26.hg4 Bg7 27.Rac1 cb4 28.Qh3-+; 25...ba5?! 26.Qg4 ab4 27.Rac1–/+) 26.Qd5 bc5 (worse is 26...ba5 27.Rad1 ab4 28.Bb4-+) 27.b5 Rcd8 (27...Rcd8 28.Qd8 Rd8-+) 0–1. Giuriati,P (2205) – Mudrak,J (2340), Czech Christmas, Litomysl CZE, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

10.Nd2 Ne5 11.N2f3 Qe7 12.a3 Nfg4 13.Qc1 Nf3 14.Nf3 Ne5 15.Ne5 de5 16.Qc3 f5 17.c5 Be6 18.Rad1 Red8 19.Rd8 Rd8= 20.Rd1 Rd1 21.Bd1 e4 22.Qg7 Qg7 23.Bg7 Kg7 24.Kf1 Kf6 25.f4 ef3 26.Bf3 b6 27.cb6 cb6 28.Be2 Ke5 29.Bd3 Bd5 30.g3 Be4 31.Ke2 Bd3 32.Kd3 Kd5 33.h3 h6 34.h4 g5 35.hg5=+ hg5 36.b5 Ke5 37.Kd2 Kd6 38.Ke2?? Kc5 39.a4?? Kc4 40.Kf3 Kd3 41.g4 fg4 42.Kg4 Ke3 43.Kg5 Kd4 44.Kf5 Kc4 45.Ke5 Kb4 46.Kd5 Ka4 47.Kc6 Kb4 (48.Kb7 Kb5 49.Ka7 Kc6-+) 0–1. Otte,Marco – Pienski,O (2175), Gent, 2002.

10.Nd2 h5 11.N2f3 a5 12.b5 Nc5 13.a4 Bd7 14.Qc2 (14.Nb3 Nb3 15.Qb3 Ne4+=) 14...b6 (14...Qe7 15.Rad1=) 15.Rfd1 Nfe4 16.Nd2 f5 17.Bf3 Kh7 18.N2b3 Rb8 (18...Qh4 19.Nc5 bc5 20.Nb3+/-) 19.Nc5+/- bc5 (19...Nc5 20.Ra2+/-) 20.Nb3 Bb2 21.Qb2 Ra8 22.Qc2 Qe7 23.Be4 Qe4 (23...fe4 24.h3 Qg5+=) 24.Qe4 (24.Qc3 Bc8 25.Na5 h4+/-) 24...Re4? (better 24...fe4 25.Rab1 Bg4=) 25.Nc5!+- dc5 (25...Re7 26.Nd7 Rd7 27.Rd5+-) 26.Rd7 Kh6 27.Rc7 (27.Rc1!? Rc8+-) 27...Rc4 28.b6 (28.g3!? Rc2+-) 28...Rb8+/- 29.Ra7 (29.b7!?+/-) 29...Rb6+= 30.Ra5 Rc2 31.h3 c4 32.Rc5 (32.Rb5 Rd6+=) 32...Rbb2= 33.Rf1 Ra2 34.a5 h4 35.Rb5 c3 36.Rc5 Kg5 37.Rb5 (37.e4 Kf6 38.Rc6 Ke5 39.ef5 gf5 40.Rc5 Kf6=) 37...Rcb2 (better 37...Rd2 38.Rc5 c2=+) 38.Rb1?? (38.Rc5 Re2=) 38...Rb1 (better 38...c2 39.R5b2 Rb2-+) 39.Rb1= Ra5 40.Rc1 Rc5 41.Kf1 f4 42.Ke2 fe3 (42...Kf5 43.Kd3 Rd5 44.Ke2 Rd2 45.Kf3=) 43.fe3 (better 43.Ke3!? Kf6 44.Rc2+=) 43...Kf5=+ 44.Kd3 g5 (better 44...Rd5!? 45.Kc3 Ke4=) 45.Rc3+/- Rd5 46.Ke2 Re5 47.Kf3 Ra5 48.e4 Ke5 49.Rd3 Rc5?? (better 49...Ra4 50.Rd5 Kf6+/-) 50.Rd5!+- Rd5 51.ed5 Kd5 52.Kg4 Ke6 53.Kg5 Kf7 54.Kh4 Kg7 55.Kg4 Kh7 56.Kg5 Kg7 57.g4 Kh7 58.h4 Kg7 59.h5 Kh7 60.Kf6 Kg8 61.g5 Kh8 (61...Kf8 62.g6 Ke8 63.g7 Kd8 64.g8Q Kd7 65.Qe6 Kc7 66.h6 Kb7 67.Qd5 Ka7 68.h7 Kb6 69.h8Q Ka6 70.Qc8 Kb6 71.Qcb7) 62.g6+- Kg8 63.h6 White prepares g7 (63.g7 Kh7 64.Kf7 Kh6 65.g8Q Kh5 66.Qg3 Kh6 67.Qg6) 63...Kh8 (63...Kf8 64.h7 Ke8 65.Ke6 Kd8 66.Kd6 Kc8 67.h8Q Kb7 68.Qb2 Kc8 69.g7 Kd8 70.g8Q) 64.g7 Kg8 (64...Kh7 65.Kf7 Kh6 66.g8Q Kh5 67.Qg3 Kh6 68.Qg6) 65.h7! Kh7 (65...Kh7 66.Kf7 Mate attack) 66.Kf7 Kh6 67.g8Q Kh5 68.Qg3 (68.Qg3 Kh6 69.Qg6) 1-0. AlbertOOO44444 - profedunca (2525), Casual Bullet game, lichess.org, 2020.

11.a3 Bg4 12.f3 Bd7 13.e4 a5 14.b5 c5 15.Nc2 Be6 16.Ne3+=.

11.Qb3 a5 12.a3 Bg4 13.f3 Bd7 14.e4 Nh5 15.g3 Nd3 16.Bd3=.

11.Qb3 Bg4 12.Rad1 Be2 13.Nde2 Qc8 14.h3 Qe6 (14...a5 15.b5=) 15.Nd5+= Nd5 16.cd5 Qe7 17.Rc1 Rac8 18.Rc2 c5 19.dc6 Rc6 20.Rc6 (20.Rfc1 Qd7+=) 20...bc6= 21.Rc1 c5 22.Nf4 ½–½. Portisch,Lajos – Kluger,Gyula, HUN–ch, 1959. (=1.d4 Nf6 2.c4 g6 3.b4 Bg7 4.Nf3 0-0 5.e3 d6 6.Bb2 Nbd7 7.Be2 e5 8.0-0)

11.Nd5 c6 12.Nf6 Qf6 13.Rb1 Qe7 14.Qd2 a6 15.Rfd1 b5 16.cb5+=.

11.h3 a6 12.Rc1 (12.a3 Qe7= (12...a5 13.b5 h6 14.Nd5 Ne4 15.b6 cb6 16.Nb5+= 0.47) 13.Nd5 Nd5 14.cd5 c5 15.dc6 bc6 16.Qd2= 0.16) 12...Bd7 (12...c5 13.Nc2 Qe7 14.a3 Bf5 15.g4 Be6 16.Nd5+= –0.31) 13.Ba1 (13.Qb3 a5 14.b5 Bc8 15.Rfd1 Ned7 16.Qc2+= 0.41) 13...Qc8 (13...c5 14.bc5 dc5 15.Nf3= Bc6 16.Ne5= 0.03) 14.Kh2 (14.Nd5 Qd8 15.Qd2 Ne4 16.Qc2= 0.22) 14...h5 (14...c5 15.Nc2= Qc7 16.Nd5= 0.06) 15.Nd5+= Ne4 (15...Qd8 16.a3+=) 16.f3 Ng5? (better is 16...Nf6+=) 17.f4+- Nh3 18.fe5 (18.gh3 Bh3 19.fe5 Bf1 20.Qf1 Be5 21.Kg1 Qd8+-) 18...Be5 19.Nf4 (19.Kh1 Ng5+-) 19...Ng5 20.Nf3 Nf3 21.Bf3 (21.gf3?! Ba1 22.Ra1 Re3+=; 21.Rf3?! Bc6 22.Rg3 h4+/-) 21...Qd8 22.Kg1 Qg5 23.Bb7 Rab8 24.Bd5 Re7 25.Qd2 c6 26.Bf3 Rbe8 27.Bd4 h4 28.c5 d5 29.Bd5! cd5 30.c6 Bc8? 31.Nd5+- Bh2 32.Kh2 Qd5 33.Qf2 h3 34.gh3 Bh3 35.Kh3 Re4 36.Rc5 Qe6 37.Kh2 Rg4 38.Re5 Qe5 39.Be5 f5 40.Rg1 (40.Rg1 Re5 41.Rg4 fg4 42.Qf6 Rh5 43.Kg2+-) 1–0. Rogers,Jo (2345) – Mack,A (2270), 4NCL, West Bromwich ENG, 2002. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.d4 Nbd7 7.0-0 e5 8.c4)

11.h3 c5 12.bc5 dc5 13.Nf3 Qb6 14.Qb3 Ne4 15.Ne4 Nf3 16.Bf3=.

9.Nfd2 a5 10.ba5 Ra5 11.Nc3=.

9.Nfd2 b6 10.f3 Bb7 11.fe4 Re8 12.Bf3 Ne4 13.Ne4 Be4 14.Be4 Re4 15.Rf3 c5 16.Nd2 Re7 17.Qc1 cd4 18.Bd4 Bd4 19.ed4 Re2 20.a4 Qg5 21.Nf1 Qc1 22.Rc1 Rae8 23.Ng3 Re1 24.Rf1 Rc1 25.Rc1 Nf6 26.a5 ba5 27.ba5 Rc8 28.Ne4 Ne4 0–1. axtur777 – rezq97, lichess.org, 2019.

9.Nfd2 Nb6 10.Nc3 Re8 11.b5 Rb8 12.Qc2 Increases the pressure on e4 12...Be6 13.Rac1 Bf5 14.h3 d5 15.a4 dc4 16.Ba3 Be6 17.a5 Nbd5 18.Nd5 Bd5 19.Nc4 Rc8 20.Ne5 Nd7 21.Rfd1 Be5 22.de5 Ne5 (worse 22...Re5 23.Bb2 Qe8 24.Be5 Qe5 25.Bg4+-) 23.Bb2 Qd6 (23...c6 24.a6 ba6 25.Be5 Re5 26.bc6+-) 24.Qc5+= Qc5 25.Rc5 Bb3 (25...c6 26.Rdd5 cd5 27.Rc8 Rc8 28.Be5 Rc1 29.Bf1+-) 26.Be5+- Bd1 27.Bd1 b6 28.Rd5 (28.Rc7?! Rc7 29.Bc7 Rc8 30.ab6 ab6 31.Bb6 Rc1=+) 28...Rcd8 29.Rd8 Rd8 30.Ba4 ba5 31.Kf1 (31.Bc7?! Rc8 32.Be5 Rc4=) 31...Rd5 32.Bd4 Rd8 33.Ba7 f6 34.Bd4 Kf7 35.Ke2 Ke6 36.Bb3 Ke7 37.Kd2 f5 38.Kc3 Rb8 39.Ba4 Kd6 40.Kc4 Rb7 41.Bg7 h5 42.Bf8 (42.Bf8 Kd7 43.Kc5+-) 1–0. pcmvr – aperturaf (1800), net–chess.com, 2016.

9.Nfd2 c5 10.bc5 dc5 11.d5 Nb6 12.f3 Bd7 13.Bf6 Bf6 14.Ne4 Ba1 15.Nbd2 Bg7 16.Nc5 Rc8 17.Nb7 Qc7 18.Na5 Na4 19.Nab3 Nc3 20.Qe1 Ne2 21.Qe2 Be5 22.e4 Bh2 23.Kh1 Qg3 24.f4 Qh4 25.Nf3 Bg4 26.Nh4 Be2 27.Re1 Bg3 28.Re2 Bh4 29.Rc2 f5 30.e5 Bg3 31.Nd4 Rb8 32.Nb3 a5 33.e6 a4 34.Nd2 a3 35.Nb3 Bf4 36.c5 Kg7 37.d6 Bg3 38.Rc3 f4 39.e7 Rf5 40.c6 Rd5 41.Rc1 Rd6 42.c7 Rg8 43.c8Q Rc8 44.Re1 Be1 0–1. Chess4Win (1655) – ve3antnege123 (1665), lichess.org, 2020.

9.Ne1 a5 A) 10.ba5 A1) 10...Nb8 11.Nc3 (11.Qd2 Nc6 12.Nc3 Re8 13.Nc2 Na5 14.Nb4 Bg4 15.h3) 11...Nc6 12.d5 Ne5 13.Nc2 Ra5 14.Nd4 Bd7 15.Qc2; A2) 10...Re8 11.Qd2 (11.Bc3 Nb8 12.Nd2 Nc6 13.d5 Ne5 14.Nc2 c6 15.dc6) 11...Nb8 12.Nc3 Nc6 13.Nc2 Na5 14.h3 Nc6 15.d5; A3) 10...Ra5 11.Qd2 (11.Qb3 Nb6 12.Nc3 Bg4 13.Bg4 Ng4 14.Nc2 Re8 15.Nb4) 11...Rf5 12.Nc3 Nb6 13.f4 ef3 14.Nf3 Re8 15.Bd3; B) 10.a3 B1) 10...ab4 11.ab4 (11.Qb3 ba3 12.Ra3 Ra3 13.Na3 Nb6 14.Nb5 Bg4 15.Bg4) 11...Ra1 12.Ba1 Nb6 13.d5 c6 14.dc6 bc6 15.Bd4; B2) 10...Qe7 11.Nc3 (11.b5 Nb6 12.Nc3 Bd7 13.Nc2 c6 14.a4 Rfd8 15.h3) 11...Nb6 12.b5 Bd7 13.Nc2 c6 14.a4 Rfc8 15.Na3; B3) 10...Nb6 11.Nc3 (11.d5 Qe7 12.Nd2 ab4 13.ab4 Bd7 14.Nc2 Ra1 15.Ba1) 11...d5 12.cd5 Nbd5 13.Nc2 Qd6 14.Qd2 ab4 15.Nd5; C) 10.Nc2 C1) 10...Nb6 11.Nc3 (11.d5 Na4 12.Bd4 Qe7 13.Nc3 ab4 14.Nb4 Nc3 15.Bc3) 11...d5 12.cd5 Nbd5 13.ba5 Ra5 14.Qd2 b6 15.Nd5; C2) 10...Re8 11.Nc3 (11.ba5 Ra5 12.Qd2 b6 13.Nc3 Qe7 14.f4 ef3 15.Bf3) 11...Nb6 12.b5 Bf5 13.h3 a4 14.d5 Nfd7 15.Nd4; C3) 10...ab4 11.Nb4 (11.Nd2 Nb6 12.Nb4 c5 13.Nd5 Nfd5 14.cd5 Na4 15.Qb3) 11...c5 12.Nd5 Nd5 13.cd5 Qg5 14.Nc3 Nf6 15.g3; D) 10.b5 D1) 10...Re8 11.Nc3 (11.Nd2 Nb6 12.Qb3 Bf5 13.Nc2 Bg4 14.Bg4 Ng4 15.h3) 11...Nb6 12.Qb3 Be6 13.Rc1 a4 14.Qb4 c5 15.bc6; D2) 10...Qe7 11.Nc3 (11.Nc2 Nb6 12.Nc3 Be6 13.Na3 Bd7 14.Qc2 Qe6 15.Nab1) 11...Nb6 12.h3 Bd7 13.Nc2 c6 14.Na3 Rfc8 15.Qc2; D3) 10...Nb6 11.d5 (11.Qc2 Be6 12.Nd2 Re8 13.h3 Qe7 14.a4 Ra7 15.d5) 11...Re8 12.Nc3 Nfd7 13.Nc2 Nc5 14.Nd4 Qg5 15.g3.

9.Ne1 Nb6 A) 10.Qb3 A1) 10...Qe7 11.Nc3 (11.h3 d5 12.Nd2 dc4 13.Nc4 Be6 14.b5 Nc4 15.Bc4) 11...a5 12.b5 Bg4 13.Bg4 Ng4 14.a4 Rfe8 15.h3; A2) 10...Be6 11.Nc2 (11.Nd2 Qe7 12.Nc2 a5 13.b5 Bg4 14.Bg4 Ng4 15.a4) 11...d5 12.Nba3 dc4 13.Nc4 Qd5 14.Ne5 Qb3 15.ab3; A3) 10...a5 11.Nc3 (11.ba5 Ra5 12.Nc3 Bg4 13.Bg4 Ng4 14.Nc2 Re8 15.Nb4) 11...ab4 12.Qb4 Bg4 13.Bg4 Ng4 14.h3 Nf6 15.Nc2; B) 10.Nc3 B1) 10...a5 11.Qb3 (11.Nc2 d5 12.cd5 Nbd5 13.Nd5 Nd5 14.Qd2 ab4 15.Nb4) 11...ab4 12.Qb4 Be6 13.f3 ef3 14.Rf3 Bg4 15.Nd3; B2) 10...Bd7 11.d5 (11.Qb3 a5 12.b5 Qe7 13.Nc2 Qe6 14.Rac1 Rfe8 15.f3) 11...a5 12.b5 Qe7 13.Nc2 Bg4 14.Qd2 Be2 15.Qe2; B3) 10...d5 11.cd5 (11.c5 Nc4 12.Qc2 Nb2 13.Qb2 Qe7 14.b5 Be6 15.Nc2) 11...Nbd5 12.Qd2 Qd6 13.Nc2 Re8 14.b5 Nc3 15.Bc3; C) 10.Qc2 C1) 10...Qe7 11.Nc3 (11.h3 Be6 12.Nd2 Bd7 13.d5 a5 14.b5 Rfe8 15.a4) 11...a5 12.b5 Re8 13.a4 Be6 14.Qb3 Bg4 15.Bg4; C2) 10...Bf5 11.h3 (11.Nc3 a5 12.b5 a4 13.a3 Be6 14.d5 Bf5 15.h3) 11...a5 12.b5 a4 13.Nd2 Re8 14.g4 Be6 15.Ng2; C3) 10...a5 11.b5 (11.a3 Bf5 12.b5 Qe7 13.Nc3 Bd7 14.a4 Qe6 15.h3) 11...Bf5 12.h3 Re8 13.Nd2 Bd7 14.a4 c6 15.Qc3; D) 10.h3 D1) 10...Re8 11.Qb3 (11.Nc3 d5 12.cd5 Nfd5 13.Qb3 Nc3 14.Qc3 Na4 15.Qc2) 11...a5 12.Nc3 a4 13.Qc2 c6 14.Rb1 d5 15.c5; D2) 10...a5 11.b5 (11.ba5 Ra5 12.Nc3 d5 13.cd5 Nbd5 14.Qd2 b6 15.Nc2) 11...Bd7 12.Qc2 Qe7 13.Nc3 a4 14.Ba3 Rfc8 15.Qb1; D3) 10...Bd7 11.Qd2 (11.Nc3 a5 12.Qb3 ab4 13.Qb4 Na4 14.Na4 Ba4 15.Qd2) 11...d5 12.c5 Na4 13.Nc3 Nb2 14.Qb2 a6 15.Nc2; E) 10.d5=+ E1) 10...Nbd7 11.Nc3 (11.Nc2 a5 12.b5 Nc5 13.Nd4 Nfd7 14.Nc3 Ne5 15.Ba3) 11...Ne5 12.Nc2 Bg4 13.Bg4 Nfg4 14.c5 f5 15.Na4; E2) 10...c6 11.dc6 (11.Nc3 cd5 12.Nd5 Be6 13.Nb6 ab6 14.Nc2 Qc7 15.Na3) 11...bc6 12.Nd2 Qe7 13.h3 a5 14.b5 Bd7 15.a4; E3) 10...a5 11.b5 (11.Nc2 ab4 12.Nb4 Na4 13.Bd4 Bd7 14.Nc3 Nc3 15.Bc3) 11...Qe7 12.Nc3 Bd7 13.Nc2 Bg4 14.Qd2 Be2 15.Qe2.

9.Ne1 c6 10.Qb3 A) 10...Nb6 11.Nd2 (11.Nc3 d5 12.c5 Nc4 13.Bc4 dc4 14.Qc4 Re8 15.Nc2) 11...a5 12.a4 ab4 13.a5 Nbd7 14.Qb4 c5 15.Qb5; B) 10...Qe7 11.Nc3 (11.Nc2 Nb6 12.Nd2 Bg4 13.Bg4 Ng4 14.h3 Nh6 15.c5) 11...Nb6 12.a4 Be6 13.a5 Nbd7 14.Nc2 Rfe8 15.b5; C) 10...a5 11.Nc3 (11.b5 a4 12.Qa3 Nb6 13.Nc3 Be6 14.bc6 bc6 15.c5) 11...ab4 12.Qb4 c5 13.Qb3 cd4 14.ed4 Nb8 15.Nc2.

9.Ne1 c6 10.Qc2 A) 10...Re8 11.Nd2 (11.Nc3 Nb6 12.Qb3 a5 13.b5 Be6 14.f3 cb5 15.Nb5) 11...Qc7 12.c5 dc5 13.bc5 b6 14.Rd1 Rb8 15.Nc4; B) 10...a5 11.b5 (11.ba5 Qa5 12.Nc3 Re8 13.h3 b6 14.Qb3 Bb7 15.Nc2) 11...Nb6 12.bc6 bc6 13.Nd2 Bf5 14.h3 Re8 15.Rb1; C) 10...Nb6 11.Nd2 (11.Nc3 Be6 12.Ne4 Ne4 13.Qe4 Nc4 14.Bc3 a5 15.ba5) 11...Re8 12.a4 a5 13.ba5 Ra5 14.Bc3 Ra8 15.a5.

9.Ne1 c6 10.Nc3 d5 (10...Nb6 11.Qb3=+ (11.f3 Re8 12.fe4 Ne4 13.Ne4 Re4 14.Qb3 Bf5 15.Nc2) 11...Be6 12.Nc2 Qe7 13.Na3 Rfe8 14.h3 Rad8 15.Rad1; 10...a5 11.b5 (11.Nc2 Nb6 12.b5 Qc7 13.c5 Nbd5 14.Nd5 Nd5 15.cd6) 11...Nb6 12.Ba3 Be6 13.Qb3 Qc7 14.Rb1 c5 15.d5; 10...Re8 11.Qb3 (11.c5 dc5 12.bc5 b6 13.Rb1 bc5 14.Nc2 Rb8 15.Ba3) 11...Nb6 12.Nc2 Be6 13.h3 Qc7 14.Na3 a5 15.b5) 11.b5 (11.c5 b6= 12.Qa4 Bb7 13.Nc2 Qc7 14.Rab1 a5 15.ba5; 11.cd5 cd5 12.Rc1 Nb6 13.Qb3 Be6 14.Rc2 Rc8 15.Na4) 11...cb5 (11...Nb6 12.cd5 cd5 13.Qb3 Be6 14.Ba3 Re8 15.Nc2) 12.Nb5 (12.c5 b4 13.Nb5 a6=+ (13...Nb8 14.a3 ba3 15.Ra3) 14.Nd6 Qc7 15.a3; 12.Nd5 bc4 13.Nf6 Bf6 14.Bc4 Nb6 15.Bb3) 12...dc4=+ 13.Ba3 (13.Bc4 Nb6 14.Bb3 Nbd5 15.Rc1) 13...a6 14.Bf8 (14.Nd6 b5 15.Nc8) 14...Bf8 15.Nc3 b5 16.f3 Bb7 17.fe4 Bh6 (17...Bb4!? 18.Qc2 Bc3 19.Qc3 Ne4=+) 18.e5= Be3 19.Kh1 Nd5 20.Nd5 Bd5 21.Bf3 Nb6 22.Nc2 Bh6 23.Nb4 a5 24.Nd5 Nd5 25.Qe2 (25.Qe1 Ra6 26.Bd5 Qd5=) 25...Ra7= 26.e6 (26.Bd5 Qd5 27.Rf3 b4=+) 26...Nf4 (26...Ne3 27.d5 Qd6–/+ (27...Nd5?? 28.Rad1 fe6 29.Qe6 Kh8 30.Bd5+-)) 27.ef7 Rf7 28.Qe5 b4? (better 28...Rf5!? 29.Qe4 Kh8+=) 29.g3+- Bg7? (better 29...c3 30.gf4 Bf4+-) 30.Qb5+- c3 (30...Bd4 31.Rad1 (31.gf4?! Ba1 32.Rd1 Qe7+-) 31...c3 32.Qc4+- (worse 32.gf4 Rd7+-)) 31.gf4 Kh8 (31...Rf8 32.Qc4 Kh8 33.d5+-) 32.Rae1 Qd4 (32...Rf8 33.d5+-) 33.Re8 (worse 33.Qa5 Bf8 34.Qe5 Bg7+-) 33...Bf8 34.Qe5 (34.Qa5?! Rf4 35.Rd1 Qg7+-) 34...Qe5 35.fe5 (35.Re5?! a4 36.Bd5 Rf6+-) 35...Kg7 36.e6 Rc7 (36...Ra7 37.Bd1 Bc5 38.Rd8+-) 37.Be4 (37.Be4 Bc5 38.Bc2+-) 1–0. Vunder,Yakov (2240) – Karalkin,Maksim (2285), Zima Rating Tournament, St Petersburg R, 2007. (=1.c4 Nf6 2.Nf3 g6 3.d4 Bg7 4.e3 0-0 5.b4 d6 6.Bb2 Nbd7 7.Be2 e5 8.0-0 e4)

9.Ne1 c6 10.Nd2 A) 10...Nb6 11.f3 (11.Qb3 a5 12.a4 Bf5 13.ba5 Ra5 14.Qb4 Ra7 15.a5) 11...ef3 12.Rf3 Bh6 13.Qb3 Qe7 14.Nc2 Bg4 15.Rf2; B) 10...Re8 11.Qb3 (11.a4 a5 12.b5 Nb6 13.Qb3 Bd7 14.Nc2 cb5 15.ab5) 11...Nb6 12.Nc2 a5 13.a4 Bg4 14.Bg4 Ng4 15.h3; C) 10...a5 11.a3 (11.b5 Nb6 12.Qb3 Qc7 13.f3 a4 14.Qa3 Re8 15.Ne4) 11...Nb6 12.c5 Nbd5 13.Nc4 ab4 14.ab4 Ra1 15.Qa1.

9.Ne1 Qe7 A) 10.Nc2 A1) 10...c6 11.Nc3 (11.a4 a5 12.Nc3 Nb6 13.b5 Bd7 14.Na3 c5 15.h3) 11...Nb6 12.Na3 a5 13.b5 Bf5 14.h3 Rfe8 15.Qc2; A2) 10...a5 11.b5 (11.Nc3 ab4 12.Nb4 Nb6 13.Qb3 Bf5 14.h3 Ra5 15.a4) 11...Nb6 12.Nc3 Be6 13.Na3 Bd7 14.Qd2 Rfe8 15.Rab1; A3) 10...Nb6 11.Nc3 (11.d5 Na4 12.Bd4 a5 13.Nc3 Nc3 14.Bc3 ab4 15.Nb4) 11...c6 12.Na3 Bf5 13.h3 a5 14.b5 Rfe8 15.Qc2; B) 10.Qb3 B1) 10...Nb6 11.Nc3 (11.Nc2 d5 12.Nd2 dc4 13.Nc4 Be6 14.b5 Ne8 15.N2a3) 11...a5 12.b5 a4 13.Qb4 Bg4 14.Bg4 Ng4 15.Nc2; B2) 10...Rd8 11.Nc3 (11.Nc2 a5 12.Nc3 ab4 13.Nb4 Nb6 14.a4 Ra5 15.Nbd5) 11...Nb6 12.Nc2 a5 13.b5 Bd7 14.h3 Nh5 15.Rad1; B3) 10...a5 11.Nc3 (11.b5 a4 12.Qc3 Nb6 13.Nd2 Bf5 14.h3 Rfe8 15.Nc2) 11...ab4 12.Qb4 Nb8 13.Nd5 Nd5 14.cd5 Nd7 15.Qb3; C) 10.Qc2 C1) 10...a5 11.b5 (11.ba5 Ra5 12.Nc3 Nb6 13.Qb3 Bg4 14.Bg4 Ng4 15.Nc2) 11...Nb6 12.Nc3 a4 13.Ba3 Bg4 14.Bg4 Ng4 15.Ne4; C2) 10...Rd8 11.h3 (11.Nc3 Nb6 12.h3 c6 13.b5 c5 14.Rd1 Bd7 15.a4) 11...Nb6 12.Nc3 a5 13.b5 a4 14.Ba3 Bd7 15.c5; C3) 10...Nb6 11.Nc3 (11.h3 Be6 12.Nd2 Bd7 13.d5 Ba4 14.Qc3 a5 15.ba5) 11...a5 12.b5 a4 13.Ba3 Bg4 14.Bg4 Ng4 15.Ne4; D) 10.Nc3 D1) 10...a5 11.b5 (11.Nc2 ab4 12.Nb4 Nb6 13.a4 Ra5 14.Qb3 Be6 15.Nbd5) 11...Nb6 12.h3 Bf5 13.Nc2 c6 14.Ba3 Rfc8 15.c5; D2) 10...Re8 11.c5 (11.Nc2 Nb6 12.b5 Bd7 13.Nb4 a6 14.ba6 ba6 15.Rb1) 11...a5 12.a3 Qe6 13.cd6 cd6 14.Bb5 Ra7 15.Nc2; D3) 10...Nb6 11.Nc2 (11.Qb3 a5 12.b5 Bg4 13.Bg4 Ng4 14.Nc2 Qh4 15.h3) 11...c6 12.Na3 a5 13.b5 Bf5 14.h3 Rfe8 15.Qd2.

9.Ne1 Re8 10.Nc3 Nf8 11.b5 h5 12.Nc2 Bf5 13.Nb4 Bh6 (13...h4 14.f3+=) 14.Ncd5 (14.c5 dc5 15.dc5 Bg7+-) 14...Nd5+= 15.Nd5 c6 16.Nc3 Nh7 17.Rb1 Ng5 18.Ba3 Qd7 19.bc6 bc6 20.d5 c5 21.Qa4 Qe7 (21...Qa4 22.Na4 Bg7 23.Nc5 dc5 24.Bc5=) 22.Bb2+= Bg4 23.Kh1 Bg7 24.Qc2 Rab8 25.Ba1 f5 26.Rb3 Rb3 27.ab3 Nf3 28.Ne4 (better 28.gf3!? ef3 29.Bd3=) 28...fe4 29.Bg7 (29.gf3? ef3 30.Bd1 Ba1 31.Qg6 Kf8-+) 29...Kg7 30.gf3 ef3 (worse 30...Bf3 31.Bf3 ef3 32.Ra1+=) 31.Bd3 Bh3 32.Rg1 Exerts pressure on the backward pawn 32...Bg2 33.Rg2 fg2 34.Kg2 Rb8 35.Kf1 Qb7 36.Qc3 Kf7 37.Bc2 (37.Qc2!? Rg8 38.Ke1=+) 37...Qe7=+ 38.Qd3 Qf6 39.Ke1 Rg8 40.Qd2 Qh4 41.Qa5 Re8 42.Kf1 Rf8 43.f3 (43.Kg2!?–/+) 43...Qh3-+ 44.Ke2 Qh2 45.Kd3 Re8 46.e4 Re7 47.Qd8 Qe5 48.Ke2 h4 49.Qc8 Qh2 50.Kd3 Qg3 51.Bd1 Re8 (51...Re4 52.Ke4 Qe1 53.Kd3 Qd1 54.Kc3 Qf3 55.Kd2 Qf2 (55...Qb3 56.Qe6 Kg7 57.Qe7 Kg8 58.Qe8 Kh7 59.Qe7 Kh6 60.Qh4 Kg7 61.Qe7 Kh8 62.Qf8 Kh7 63.Qe7 Kg8 64.Qe8 Kg7 65.Qe7 Kh6 66.Qh4 Kg7 67.Qe7=) 56.Kd1 Qg3 57.Qe6 Kg7 58.Qe7 Kh6-+) 52.Qd7 Re7 53.Qc8 Kg7 (53...h3 54.Qg4 Qg4 55.fg4-+) 54.Qd8 Rf7 55.e5 Qe5 (55...de5 56.Be2 h3-+) 56.Qh4 Rf4 57.Qd8?? (57.Qh3-+) 57...Rd4 58.Kc2 Qh2 (58...Qh2 59.Kc1 Qd2 60.Kb1 Qd1 61.Kb2 Rd2 62.Kc3 Qc2) 0–1. Spiridonov,Nikola – Skalkotas,Nikolaos, Albena, 1978. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 e4)

9.Ne1 Re8 10.Nc3 Nf8 11.Nc2 h5 12.b5 h4 13.a4 N8h7 14.Nb4 Ng5 15.a5 a6 16.Ncd5 Nd5 17.Nd5 Ne6 18.Qc2 Bd7 19.b6 (worse is 19.Qe4 Nd4 20.Qd3 Bf5+= (worse is 20...Ne2 21.Qe2 ab5 22.Bg7 Kg7 23.cb5+=)) 19...c6 20.Nc3 Ng5 21.Nb1 Bf5 22.Nd2 Nh7 23.Qd1 (23.h3 Qg5 24.Kh2 Nf6+=) 23...Qg5= 24.Kh1 Nf6 25.h3 ½–½. Spiridonov,Nikola (2420) – Meduna,Eduard (2390), CSR–ch int Decin, 1977. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

9.Ng5 h6=+ 10.Nh3 Nb6 11.Nd2 Bh3 12.gh3 Qd7 13.Bg4 Ng4 14.Qg4 Rae8 15.Qd7 (15.c5 Qg4 16.hg4 Nd5=+) 15...Nd7-/+ 16.a4 c5 (16...f5 17.a5-/+) 17.b5 (17.bc5 dc5 18.Rab1 b6=+) 17...cd4 18.ed4 e3 19.fe3 Re3 20.Rf3 (20.a5 Rd3 21.Nf3 Rb3-/+) 20...Re2 (20...Rf3!? 21.Nf3 Nb6-+) 21.Rf2=+ Rfe8 22.Raf1? (better 22.Kf1!? R2e3 23.a5=+) 22...Nb6-+ 23.Bc3 (23.Ba1 Na4 24.Nb3 R2e3-+) 23...Na4 24.Bb4?? (24.Ba1 a6-+) 24...Nb2 (better 24...Bd4 25.Nb3 Rf2 26.Rf2 Bf2 27.Kf2-+) 25.Nf3? (25.Bc3 Rf2 26.Kf2 Nd3 27.Kf3 Ne1 28.Kf2 Nc2-+) 25...Nd3?? (better 25...Rf2 26.Rf2 Nc4-+) 26.Re2-/+ Re2 27.Bd6 Nb2 (better 27...Re4!? 28.c5 Bd4 29.Nd4 Rd4=) 28.c5= Nc4 29.Bb8 (29.Ra1 Rb2=) 29...Ne3?? (29...Nd2 30.Ba7 Nf3 31.Rf3 Bd4 32.Kf1-+) 30.Re1?? (better 30.Rf2 Rf2 31.Kf2+=) 30...Re1-/+ 31.Ne1 Bd4 32.Kh1?? (better 32.Ba7 Nd5 33.Kg2-/+) 32...Bc5-+ 33.Nd3 Bb6 34.Ne5 (34.Nb4 Nc4-+) 34...Kf8 (34...Kg7!? 35.Kg1-+) 35.Nd7 Ke7 36.Nb6 ab6 37.Bc7 (37.Bg3 Nd5-+) 37...Nd5 38.Bg3 Kd7 39.Kg2 Ne3 (39...Nc3 40.Bf2-+) 40.Kf3 Nf5 41.Be5 f6! 42.Bf6 g5 (better 42...Ke6!? 43.Ba1 Nd6-+) 43.Kg4=+ Ke6 44.Kh5?? (better 44.Bb2=+) 44...Kf6-+ 45.Kg4 (45.h4 Nh4 46.Kg4 Nf5-+) 45...Nd4 (45...Kg6 46.Kf3-+) 46.h4 Nb5 47.hg5 hg5 48.h4 (48.Kf3 Kf5-+) 48...Nd6 (better 48...gh4 49.Kh4 Na3-+) 49.hg5 Kg6 50.Kf4 b5 51.Ke5 Nc4 (51...Nc4 52.Kd5 b6-+) 0-1. igkl (1820) - oldbridge90 (1775), Rated Bullet game, lichess.org, 2014. (=1.c4 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...Nf6 2.b4 d6 3.Bb2 g6 4.Nf3 Bg7 5.e3 0-0 6.d4 Nbd7 7.Be2 e5)

10.a4 d5 11.Nc3 Qe7 12.Qb3 Qd6 (12...dc4 13.Nc4 h6 14.f3+=) 13.cd5+- cd5 14.Nb5 Qb6 (14...Qe7 15.Rac1 Rd8 16.Rc2+-) 15.Rac1 (15.Rfc1 Rb8+-) 15...a6 (better 15...Rb8!?+-) 16.Nc7+- Rb8 17.Ba3 (17.Nd5?! Nd5 18.Qd5 Qb4+-) 17...Rd8 18.a5 (18.Nd5?! Nd5 19.Qd5 Nf6+-) 18...Qa7 19.b5 (19.Nd5 Nd5 20.Qd5 b5 21.Qe4 Nf6+-) 19...ab5 20.Be7 (20.Qb5?! b6 21.a6 Nc5 22.dc5 Qc7 23.cb6 Qb6 24.Qb6 Rb6+-) 20...Re8 (20...Qa5 21.Rfd1 Rf8 22.Bb5 Kh8 23.Nd5 Nd5 24.Bf8 Nf8 25.Qd5 Be6+-) 21.Ne8 Ne8 22.Qd5 Qa5 (22...b6 23.Qe4 Ndf6 24.ab6 Qb6 25.Qh4+-) 23.Ne4 Qa3 (23...Nf8+-) 24.Ba3 1–0. DEFFM – jangazy, freechess.org, 2018.

10.Nc3 Qe7 11.a3+=.

11.Qb3 Nb6 12.cd5 cd5 13.a4 Be6 14.a5 Nbd7 15.a6 b6 16.Nb5 Qe7 17.Rfc1 Rfc8? (better 17...Ne8+=) 18.Rc8+- Rc8 19.Na7 Ra8 20.Nc6 Qd6 21.b5 h5 (21...Qc7 22.Ba3+-) 22.Ba3 Qc7 23.Rc1 (23.Qb4 Ne8+-) 23...Kh7 24.Ne7 Qd8 25.Bd6 Ng4 26.Qa3 Bf6 (26...Nh6 27.Qc3+-) 27.h3 Nf2 (27...Nh6+-) 28.Kf2 Nc5 (28...Nb8 29.Qb4+-) 29.dc5 (29.Bc5!? bc5 30.Nc6 Qc7 31.dc5 Qh2+-) 29...Be7 30.Be7 Qe7 31.Qc3 Qh4 (31...bc5 32.b6 Rd8 33.Qc5 Qh4 34.Kg1+-) 32.Kg1 (better 32.Kf1 bc5 33.b6 Re8 34.Qc5 Rc8+-) 32...Bh3 (32...bc5 33.Qc5 Rc8 34.Qc8 Bc8 35.Rc8 Qe1 36.Nf1 Qa5+-) 33.gh3 Qg3 34.Kf1 Qh3 35.Ke1 Qg3 36.Kd1 bc5 37.Qc5 h4 (37...Qg1 38.Nf1 Qg5 39.b6+-) 38.Qd5 Re8 (38...Rf8 39.a7 Qe3+-) 39.Qf7 (39.Qf7 Kh8 40.Qe8 Kg7 41.Qe7 Kh6 42.Rc8 Qg1 43.Kc2 Qa1 44.Qh4 Kg7 45.Rc7 Kg8 46.Qd8) 1–0. DEFFM – jangazy, freechess.org, 2018.

11.b5 cb5 12.cd5 Nb6 13.Nde4 Nbd5 14.Nf6 Bf6 15.Nb5 a6 16.Nc3 b5 17.Rc1 Bb7 18.Ne4 Bg7 19.Nc5 Bc8 20.Bf3 Be6 21.e4 Nc7 22.Ba3 Re8 23.d5 Bc8 24.d6 Ne6 25.d7 1–0. Adamkosh (1975) – FENAG (1790), lichess.org, 2020.

11.b5 Re8 12.Rc1 Nf8 13.Ba3 Ne6 14.Qb3 Nc7 15.Rc2 (15.bc6 bc6 16.Rc2 Bf5+=) 15...cb5+/- 16.cd5 a6 (16...Nfd5 17.Nd5 (17.Nde4?! Bf5=) 17...Nd5 18.Bb5+/-) 17.d6 Ne6 18.Rfc1 (worse is 18.Nde4 Ne4 19.Ne4 Nd4 20.ed4 Re4=) 18...Nf8 (18...b6 19.Nd5 Bb7 20.Ne7 Kh8 21.Nc6 Bc6 22.Rc6+/-) 19.Nd5 Be6 20.Ne7 Kh8 (20...Qe7 21.de7 Bb3 22.ab3+/- (worse is 22.ef8B Bf8 23.ab3 Ba3+=)) 21.d5 Nd5 (21...Bd7 22.Bb2+-) 22.Nd5 Qg5 23.Ne4 (better is 23.Rc5!? Nd7 24.Bb2+-) 23...Qd5+/- 24.Qd5 Bd5 25.Nc5 (25.Ng5 h6 26.Bf3 Bc6 27.Bc6 bc6+/-) 25...Ne6 (25...b6 26.Nd3+/-) 26.Ne6+- Be6 27.Bf3 Rab8 (27...Red8 28.Rd2+/-) 28.Rc7 (28.Rd2!?+-) 28...Red8+/- 29.Bb7 a5 30.Bc5 b4 (30...Bf8 31.a4+/-) 31.Ba7+- Be5 32.Bb8 Bd6 33.Ba7 Bc7 34.Bd4 Rd4 35.ed4 Bf4 36.Rc5 a4 (36...Ba2 37.Ra5 Bc4 38.Bd5 Bd5 39.Rd5+-) 37.Ra5 (37.d5 Bf5 38.Rb5 Bd6+-) 37...b3 (better is 37...a3 38.Bd5 Bd2+-) 38.ab3 ab3 39.Rb5 (39.Rb5 Kg7 40.d5+-) 1–0. Martin – Hebden, Brit Meist SW, 1991. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

11.b5 Re8 12.Rc1 Nf8 13.bc6 bc6+= 14.cd5 cd5 15.Nb5 Ne6 16.Ba3 Bf8 17.Bf8 Rf8 18.Qa4 Ne8 19.Nc3 N6g7 20.f3 ef3 21.Bf3 Be6 22.e4 Nf6 23.e5 Ng4 24.Nd5 Bd5 25.Bg4 Qg5 26.Bf3 Rad8 27.Rfd1 Nf5+= 28.Bd5 Rd5 29.Nf3 Qe3 30.Kh1 Qh6 31.Qb3 Rfd8 32.Rc7 a5 33.Re1 Qf4 34.Rc5 Ne7 35.Rd5 Nd5 36.e6 fe6+/- 37.Re6 Qc1 38.Re1 Qc3 39.Qb7 Qc7 40.Qb5 Nf4 41.Qb3 Qf7+/- 42.Qb6 Rf8+= 43.Qb3 Qb3 44.ab3 Rb8 45.Re3 Nd5 46.Re5 Nf4 47.Re3 Nd5= 48.Re5 Nf4 49.Ra5 Rb3 50.Ra1 Rb2 51.g3 Nd5 52.Re1 Kg7 53.Re5 Nf6 54.Re7 Kf8 55.Ra7 Kg8 56.Ng5 Rd2 57.Ne6 Ng4 58.h4 Ne3+= 59.Rg7 Kh8 60.Rf7 h6 61.Rf8 Kh7 62.Rf7 Kh8 63.Nf4 Kg8= 64.Rd7 g5 65.hg5 hg5 66.Nh5 g4 67.Re7 Nf5 68.Re5 Nd4 69.Nf6 Kf7 70.Ng4 Kg6 71.Rd5 Nf3 72.Ne5 Kf5 73.Rd2 ½–½. Khurtsidze,N (2450) – Lomineishvili,M (2395), 64th ch–GEO w, Tbilisi GEO, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 Nbd7 6.e3 e5 7.Be2 0-0 8.0-0)

11.b5 h6 12.Rb1 Nh7 13.bc6+- bc6 14.cd5 cd5 15.Nd5 Bb7 16.Nf4 Ng5 17.Ba3 Nb6 18.Bf8 Qf8 1–0. marere – pnv, internet, 2011.

11.cd5 cd5 12.a4 a6 13.Qb3 White intends b5 13...Nb8 14.b5 Be6 15.h3 ab5 16.ab5 Ra1 17.Ra1 Nbd7 18.Na4 White plans b6 18...Qc7 19.Rc1 Qb8 20.b6 (20.Nc5 Rc8+=) 20...Rc8 21.Qb5 Rc1 22.Bc1 Qc8 23.Nc5 (23.Ba3 g5+=) 23...Nc5= 24.dc5 Nd7 25.Ba3 Bc3 26.Nb3 Be5 (26...Qa8!? 27.Bb4 Be5+=) 27.Nd4+= 1–0. GuestNPTV – jiojiojiojio, freechess.org, 2017.

11.cd5 cd5 12.f3 Nb6 13.fe4 Ne4 14.Nde4 de4 15.Ne4 Nd5 16.Qd2 Bf5 17.Ng3 Bd7 18.e4 Nb6 19.a4 Na4 20.Rab1 Nb2 21.Rb2 a6 22.e5 Be6 23.Ne4 Qh4 24.Nf6 Bf6 25.ef6 Qe4 26.Rf4 Qd5 27.Bf3 Qd6 28.Rh4 h5 29.Qh6 1–0. Chess4Win (1685) – inovitskii (1645), lichess.org, 2020.

10.a4 a5= 11.b5 Nf8 (11...c5 12.Qc2+=) 12.Nc3+= h5 (12...Qe7 13.Rb1+=) 13.Qc2 e4 becomes the focus of attention 13...Bf5 14.Rfd1 N8h7 (14...N8d7 15.Rab1+=) 15.Nf1 (15.Rac1 h4+=) 15...h4 16.Rd2 (16.h3 Ng5+=) 16...Ng5 Black prepares h3 17.Qd1 (17.h3 Nd7 18.Rdd1 Nf3 19.Kh1 Ng5+=) 17...Qd7 Black plans h3 (17...h3 18.f4 ef3 19.gf3=) 18.f4 (18.h3 Be6+=) 18...Ngh7 (18...ef3!? 19.gf3 Bh3=) 19.c5 (19.h3 Qd8+=) 19...d5 (19...h3 20.c6 bc6 21.bc6=) 20.Qe1 (20.h3!?+=) 20...h3= 21.g3 (21.Qh4 hg2 22.Kg2 Rad8=) 21...g5 (21...Bg4 22.c6 bc6 23.bc6=) 22.c6 bc6 23.bc6 Qe6 24.Nb5 Rec8 (24...Qc6? 25.Rc1 Qd7 26.Nc7+- (26.Rc7?! Qd8+=)) 25.Rc2 Bh6 26.Rac1 Kh8 (26...Bg4 27.Bg4 Qg4 28.Rf2+=) 27.Rc3 (27.Bc3!?+-) 27...Bg4+= 28.Qd1 (28.Nd2 Be2 29.Qe2 Bf8+=) 28...Be2 (28...Bg7 29.Rb3+=) 29.Qe2+= Ng4 (29...Bg7 30.Rb1=) 30.R1c2 Nhf6 31.Rc5 (better 31.fg5 Bg5 32.Ba3+=) 31...Ne3? (better 31...gf4 32.ef4 Bg7=) 32.Ne3+- gf4 33.gf4 Bf4 34.Nd5! Rg8 (34...Qd5 35.Rd5) 35.Kf1 Nd5 36.Qh5 Bh6 (36...Kg7 37.Rd5 Qg6 38.Qh4+-) 37.Rd5 (37.Qd5 Qg4 38.Qe5 f6 39.Qf6 Bg7-+) 37...Rg6 (37...Qg6 38.Qg6 Rg6 39.Rf5+- (39.Nc7?! Rag8 40.Rf2 e3 41.Rf7 Rg1 42.Ke2 R8g2 43.Kd3 Rb2+-)) 38.Rf5 (better 38.Nc7 Rag8 39.Qh6 Rh6 40.Ne6 Rf6 41.Rf2 fe6 42.Ra5 Rf2 43.Kf2+-) 38...Qb3 39.d5 Kg8 40.Rff2 (40.Qe2 Be3 41.Ke1 Qb4 42.Rc3 Bh6+-) 40...Qd3 (40...Rb8 41.Bc1 Rb5 42.ab5=+ (42.Bh6? Rd5 43.Qe2 Rh6-+)) 41.Qe2 Qd5? (41...Be3 42.Nc7 Rc8+-) 42.Nc7 Qg5 The mate threat is Qg1 43.Qe4 Rd8 (43...Rb8 44.Qc4 Rg7+-) 44.Bd4 (better 44.Nd5! Qg1 45.Ke2+-) 44...Qg1+- 45.Ke2 Rg4 Threatening mate... how? 46.Qf5?? (better 46.Qh7 Kh7 47.Rf7 Kg8 48.Bg1 Kf7 49.Bf2 Ra4 50.Nb5–/+) 46...Rgd4-+ 47.Qf7 Kh8 Threatening mate: Qd1 48.Qf6 Bg7 49.Qd4 Rd4 50.Ke3 (50.Rc1 Qg4 51.Ke1 Bf6 52.Nb5 Qe4 53.Kf1 Qd3 54.Kg1 Rg4 55.Rg2 Qe3 56.Kf1 hg2) 50…Qg5 (50...Qg5 51.Rf4 Qe5 52.Re4 Re4 53.Kd2 Qd4 54.Kc1 Re1) 0–1. Bigalke,Andre – Hermesmann,Hans (2280), Wichern op 4th, 1997.

10.a4 Nf8 11.a5 (11.Nc3 c5 12.dc5 dc5 13.bc5 Ne6+=) 11...a6 (11...c5 12.Qb3+=) 12.b5 (12.Nc3 c5 13.dc5 dc5 14.bc5 Ne6+=) 12...h5 (12...ab5 13.cb5 d5 14.Nc3+=) 13.ba6 (13.Nc3 N8d7+=) 13...ba6 14.d5 (14.Nc3 c5+=) 14...N8h7 (14...h4 15.Bd4+=) 15.Nb3 (15.Bd4 Rb8+=) 15...Rb8 16.Bc3 (16.Nc3 h4+=) 16...Ng4 (16...h4 17.Nd4 Bd7 18.h3+=) 17.Bg7 Kg7 18.Qd4 (18.Nc3 Qg5 19.Rb1 Nhf6+=) 18...Kg8 (18...Qf6 19.N1d2+=) 19.N3d2 (19.N1d2 Qg5+=) 19...Qh4 (19...Qf6!?+=) 20.Bg4+- Qg4 21.Nc3 Now all is on e4 (21.h3 Qh4+=) 21...Ng5 22.Qf6 (22.Kh1 h4+=) 22...Bf5 (22...h4 23.Rab1 h3 24.g3=+) 23.Kh1 (23.Rfb1 h4 24.Rb8 Rb8=) 23...h4 24.f3 (24.h3 Nh3 25.Nce4 Qe2+= (worse 25...Re4 26.f3 Qg5 27.Ne4 Qf6 28.Nf6 Kg7 29.e4 Kf6 30.ef5+-)) 24...ef3= 25.gf3 (worse 25.Nf3 h3 26.gh3 Nh3–/+) 25...Qh5 26.e4 Bh3 (26...Nh7 27.Qd4 Bh3 28.Rf2=) 27.Rfb1+= Nh7 28.Qf4 Nf8 (28...Kg7 29.c5 dc5 30.Na4+= (30.Qc7?? Qg5 31.Rg1 Qd2-+)) 29.c5 (29.Rb8 Rb8 30.Qe3 Rb2+=) 29...dc5 30.Nd1 (30.Rb8 Rb8 31.Rg1 Rb4+=) 30...c4 (30...Rb1 31.Rb1 Qd5 32.Nf2–/+ (32.ed5?? Re1 33.Nf1 Rf1)) 31.Rc1 (better 31.Rb8!? Rb8 32.Rc1+-) 31...Qd5= 32.Nc4 (32.Nf2 Qd7 33.Nc4 Be6=) 32...Qd8 (32...Qh5!?–/+) 33.Nf2= Be6 34.Ne5 Qd6 35.Rd1 Qc5 36.Rac1?? (better 36.Nfg4 Nh7 37.Nh6 Kg7 38.Nhf7+-) 36...Qf2–/+ 37.Nf7?? (better 37.Rd2 Qa7 38.Nc6–/+) 37...Bf7-+ 38.Rc7 Do you see the mate threat? 38...Qa2 39.Rd2 (39.h3 Rec8 40.Rc8 Rc8-+) 39...Rb1 40.Kg2 h3 (40...Rb2 41.Rb2 Qb2 42.Kh3 Be6 43.Kh4 Qg2-+) 41.Kg3 (41.Kh3 Be6 42.Kg2 Qa5 43.Rcc2-+) 41...Rg1 42.Kh4 Qe6 (42...Qe6 43.Rd5 Nh7 44.Qf7 Qf7 45.Rf7 Kf7 46.Rd7 Kg8-+; 42...Re5 43.Qg4 Qd2 44.Qg1 Qf4 45.Kh3 Qf3 46.Qg3 Rh5) 0–1. Volke,Karsten (2480) – Hermesmann,Hans (2295), BL, 1994.

10.Qb3 Nf8 11.d5 h5 12.Bd4 Bg4 13.f3 ef3 14.gf3 Bh3 15.Rf2 N8h7 (15...Nd5 16.Ne4 Bd4 17.ed4-+) 16.Na3 (better is 16.Qb2=) 16...Nd5!-+ 17.Bg7 (17.cd5 Qg5) 17...Qg5 18.Kh1 Ne3 19.Rg1 Qh4 20.Rg3 Kg7 21.Qc3 Kg8 22.Kg1?! (22.Ne4 Nf5 23.Rg1-+) 22...Nf5 23.Rh3 Qh3 24.Bf1 Qh4 25.Ne4 Qf4 26.Nb5 Re7 27.Nd4 Nd4 28.Qd4 Qe5 29.Qd2 Nf6 30.Ng3 Qe3 31.Qb2 Qf4 32.Bd3 Re1 33.Bf1 Rae8 34.Ne2 Qg5 35.Ng3 (35.Rg2 Qe3 36.Rf2-+) 35...h4 36.f4 (36.Qd2 R8e3 (36...hg3?! 37.Qg5 gf2 38.Kf2–/+) 37.Re2 R1e2 38.Be2 Ne4-+) 36...Qg4 (36...hg3?! 37.fg5 gf2 38.Qf2-+) 37.Qf6 (37.Kg2 Nh5 38.a4 h3 39.Kg1 Ng3 40.Qh8 Kh8 41.hg3 Qg3 42.Kh1 Qf2 43.f5 Rf1) 37...hg3 38.hg3 Qg3 39.Rg2 Rf1! (39...Rf1 40.Kf1 Re1) 0–1. Piz,Maxim (2150) – Prudlo,Simon (2235), Berlin op, 2006. (=1.Nf3 Nf6 2.b4 d6 3.d4 g6 4.Bb2 Bg7 5.e3 0-0 6.c4 Nbd7 7.Be2 e5 8.0-0 e4 9.Nfd2 Re8)

10.Qb3 Nf8 11.h3 h5 (11...a5 12.a3+=) 12.f3 (12.Nc3 Qe7+=) 12...ef3 13.Bf3 Bh6 (13...g5 14.Na3+=) 14.e4 N8h7 (14...Ne6 15.a3+=) 15.d5 (15.e5 de5 16.de5 Nd7+=) 15...Ng5+= Increases the pressure on the backward pawn 16.Nc3 (16.Qd3 Qe7=) 16...Nf3 (better 16...Nh3 17.gh3 Bd2=+) 17.Rf3?? (better 17.Nf3 Ne4 18.Ne4 Re4 19.Qc3=) 17...Bd2-+ 18.Nb5? (18.Raf1 Bg5-+) 18...Nd7 (better 18...Ne4 19.Raf1 f5-+) 19.Raf1 Rf8 (19...Re4?! 20.Qd3 Re7 21.Qd2=) 20.Qd3? (20.R3f2 Bg5-+) 20...Bh6 (better 20...Bb4 21.Kh2 Bc5-+) 21.Qc3 (better 21.Na7 Ra7 22.Qd4-+) 21...Ne5 0–1. GuestPRVN – GuestHSWS, freechess.org, 2017.

10.Nb3 h5 11.N1d2 c6 12.Qc2 Nf8 13.Rfe1 Bf5 14.Nf1 h4 15.Rad1 N8h7 (15...h3 16.Ng3=) 16.d5 (16.h3 d5+=) 16...cd5= 17.cd5 Rc8 18.Qb1 h3 19.g3 Ng5 20.Qa1 Bg4 21.Bg4 Ng4 22.Nfd2 Bb2 23.Qb2 Ne5 (23...Qf6!? 24.Qf6 Nf6–/+) 24.Rf1+= Qd7 25.Nd4 Qg4 26.N2b3 (26.Kh1 a6=) 26...Rc4 (better is 26...Nd3 27.Qb1 Nf3 28.Kh1 Qh5-+) 27.Qe2? (27.f4 ef3 28.Na5-+) 27...Qe2-+ 28.Ne2 Rc2 (28...Ngf3!? 29.Kh1 Ng4 30.Ned4 Nfh2 31.Rfe1-+) 29.Ned4 Ra2 30.Ra1 Ngf3 31.Kh1 Ra1 32.Ra1 Rc8 33.Ra7?? (better is 33.b5-+) 33...Nd4 (33...Rc2 34.Ra3 Rf2 35.Nf3 Nf3 36.Ra8 Kg7 37.Rg8 Kg8 38.Nc5 Rh2) 34.ed4 Nf3 35.Ra1 (35.Nc5 Nd4 36.Ra1 dc5 37.bc5 Rc5 38.d6-+) 35...Rc2 36.Rf1 e3! (36...e3 37.Nc1 Rf2 38.Rf2 ef2 39.Ne2 f1Q 40.Ng1 Qg1) 0–1. Barenboim,Grigory – Gufeld,Eduard, URS–ch sf Vilnius, 1960. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 Nbd7 7.b4 e5 8.Bb2)

10.Nc3 c5 11.Qc2+=.

10.Nc3 c6 11.a4 Nf8 12.b5 h5 13.a5 cb5 14.Nb5 a6 15.Nc3 N8h7 16.Qb1 Bf5 17.Ba3 Rb8 18.Qb6 Qb6 19.ab6 Bf8 20.h3 h4 21.Nb3 Nd7 22.Na5 Nhf6 23.Rab1 Kg7 24.Rfc1 Rec8 25.Na4 g5 26.c5 dc5 27.Bc5 Bc5 28.dc5 Ne5 29.Nb7! Nd3 30.Nd6 Bd7 31.Nc8 Nc1 32.Rc1 Ba4 33.c6 (33.c6 Nd5 34.c7 Rb6 35.Nb6 Nb6 36.Ba6+-) 1–0. Kovacevic,Vlatko (2490) – Subasic,Ilijas (2320), Zenica, 1986. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 Nbd7 6.e3 0-0 7.Be2 e5 8.0-0)

10.Nc3 c6 11.Qb3 Nf8 12.b5 h5 (12...Bf5 13.a4+=) 13.Rac1 Bg4 14.Bg4 hg4 15.Rb1 Rb8 16.Ba3 N8h7 (16...Rc8!?+-) 17.bc6+- bc6 18.Qb8 Qb8 19.Rb8 Rb8 20.Bd6 Rb2 21.Rd1 Bf8 22.Nde4 Ne4 23.Ne4 Ra2 24.d5 cd5 25.cd5 Bd6 26.Nd6 Nf6 27.Kf1 Kf8 28.Ke1 Ke7 29.Nc4 a5 30.Rd4 a4 31.e4 Nd7 32.Rd2 Ra1 33.Rd1 Ra2 34.e5 White plans d6 34...Nc5 (34...a3 35.Kf1+-) 35.Ne3+- f6 36.d6 Ke6 37.ef6 Nd7 38.Ng4 Kf5 (better 38...a3 39.Rd3 Ra1 40.Ke2 a2+-) 39.Rd4 a3 40.f7 Rb2 41.Ne3 Ke6 42.Re4 Kf7 43.Re7 Kf6 (43...Kf8 44.Rd7 a2 45.Rd8 Kf7 46.Ra8 Rb1 47.Ke2+-) 44.Nd5 Kg5 (44...Kf5 45.Rd7 a2 46.Ra7 Rb1 47.Kd2+-) 45.f4 Kg4 (45...Kh6 46.Rd7 a2 47.Ra7 Rb1 48.Ke2+-) 46.h3 (46.h3 Kg3 47.Re3 Kg2 48.Ra3 Rb1 49.Kd2+-) 1–0. Guestcello – Hbmbyzs, internet, 2019.

10.Nc3 c6 11.Qc2 Qe7 12.a4 h5 (12...a5 13.b5+=) 13.a5 a6 (13...h4 14.h3+=) 14.b5 (14.Rad1 d5 15.Qb3 Qe6+=) 14...Nf8 (14...h4 15.f3+=) 15.Ba3 (15.b6 Bg4+/-) 15...Bf5 (15...c5 16.dc5 dc5 17.Bb2+=) 16.bc6 bc6 17.Qa4 (better is 17.c5 d5 18.Rfb1+=) 17...Rac8? (better is 17...c5=) 18.c5+- d5 (18...Ra8 19.cd6 Qd7 20.Rab1+-) 19.Ba6 Rc7 20.Rfb1 Ng4 (20...Ra8 21.Bf1+-) 21.Nf1 (21.h3 Nf6+-) 21...Qh4 22.Ra2 Rd8 23.Bb7 Ne6 24.Bc6 Rc6 25.Qc6 Nd4 26.ed4 Bd4 27.Nd1 e3 28.Rb4?? ef2+= 29.Nf2 Bf2 30.Kh1 Bd3 31.Rg4?? hg4= 32.a6?? Bf1 33.a7 g3 34.h3 Qe4 (35.Rf2 gf2 36.Qd5 Bg2 37.Kh2 Qf4 38.Kg2 f1Q; 34...Qh3 35.gh3 g2 36.Kh2 g1Q) 0–1. Pandurevic,Miro (2235) – Lisjak,Zlatko, CRO–Cup Pula, 1992.

10.Nc3 Qe7 11.Qc2 Nb6 12.a4+=.

10.Nc3 Qe7 11.Qc2 c6 12.a4 a6 13.a5 (13.a5 d5 14.Ba3+=). pcmvr (2740) – hypnoticspecter (2290), net–chess.com, 2007.

10.Nc3 Qe7 11.Qc2 h5 12.a4 (12.Rad1 a5 13.a3 h4+=) 12...Nf8 (12...a5 13.b5+=) 13.d5 (13.a5 c5+/-) 13...N8h7 (13...h4 14.a5+=) 14.c5 (14.a5 h4+/-) 14...Bf5 (14...dc5 15.bc5 Rd8 16.Bc4+=) 15.Rfc1 (15.Bb5 Bd7+/-) 15...h4 (15...dc5 16.bc5 Red8 17.Nc4+=) 16.Qb3 (16.cd6 cd6 17.h3 Rec8+=) 16...a6 (16...dc5 17.bc5 h3 18.Rab1+= (worse is 18.Qb7 Reb8 19.Qc6 Bd7 20.Qc7 Rb2–/+)) 17.cd6 cd6 (17...Qd6 18.h3+=) 18.b5 (18.h3 Nd7+/-) 18...Nd7 (18...h3 19.g3+=) 19.Nc4 (19.Qb4 a5 20.Qa3 Nb6+=) 19...Nc5 20.Qd1 Rac8 (20...h3 21.g4 Bc8 22.a5+=) 21.ba6 ba6 22.Na5 Qg5 23.Qf1 Rb8 24.Ba3? Nb3–/+ 25.Nb3 Rb3 26.Qe1? Rc8-+ 27.Ba6 Rcc3 28.Bd6 h3 29.Bg3 Qd8 30.d6 hg2 31.Qd1 Ng5 32.Rc3 Rc3 33.Rc1 Bh3 34.Be2 Rc1 35.Qc1 Nf3 36.Bf3 ef3 (36...ef3 37.Qc7 Qe8-+) 0–1. Bott,Hans Joachim – Werner,Isabel (2210), Badenweiler op, 1994.

10.Nc3+= Re7 11.Qc2 Now all is on e4 11...c6 (11...Nb6 12.b5+=) 12.g4 (12.Nde4 Ne4 13.Ne4 Nb6+-) 12...h6 13.Nde4 Qe8?? (better 13...Ne4 14.Ne4 d5+-) 14.Nd6+- Qd8 15.e4 Qc7 (15...Nb6 16.e5 Ng4 17.Nce4+-) 16.e5 Ne5 17.de5 Re5 18.c5 Bg4 19.Bc4 Rf8 (19...Kh7 20.f4 (20.Bf7 Rg5 21.f4 Bf5 22.fg5 Bc2 23.gf6 Bf8+-) 20...Bf5 21.Qg2+- (21.fe5 Bc2 22.Rac1 Nd7 23.Rf7 Rf8 24.Rf8 Nf8 25.Rc2 Be5+-; 21.Nf5?! Rf5 22.Ne2 Nh5+-)) 20.f4 Rh5 (20...Re7 21.Qg6 Kh8+-) 21.Qg6 b5 (21...Be6 22.Be6 fe6+-) 22.Nce4 Ne4 23.Qg7 1–0. Ddgs – Seer, internet, 2019.

10.Nc3 h5 11.Qc2 Qe7 12.a4 Nf8 13.a5 N8h7 14.a6 b6 15.d5 h4 16.c5 Bd7 (16...dc5 17.bc5 h3 18.cb6 hg2 19.Rfd1 cb6 20.d6+=) 17.Nb3 Ng5 18.cd6 cd6 19.Nd4 Rec8 20.Qd1 Qe5 21.Qb3 h3 22.g3 Bg4 23.Nc6 Qe8 24.b5 (better is 24.Nd4!?=) 24...Be2–/+ 25.Ne2 Nf3 26.Kh1 Ng4 27.Bg7 Kg7 28.Qb2 Kg8 29.Ra4 Nfh2 30.Rc1 Qd7 31.Ned4 Re8 32.Qe2 Kh7 33.Rc3 Re5 34.f3 ef3 35.Nf3 Nf3 36.Qf3 Rg5 37.Rf4 Rf8 38.Rcc4 Ne5= 39.Rh4 Kg7 40.Qf4 Qf5 41.e4 Qf4 42.gf4 Nc4 43.fg5 Na3? 44.Na7+- Ra8 45.Rh3 Ra7 46.Ra3 f6 47.Rc3 1–0. Schmidt,Peter2 (2070) – Von Herman,Ulf (2370), Berlin op, 2005. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 d6 6.c4 Nbd7 7.b4 e5 8.Bb2 e4 9.Nfd2 Re8)

10.c5 d5 11.b5 Nf8 12.c6 b6 13.a4 Bf5 14.Kh1 h5 15.Nc3 N8h7 16.Re1 Bf8 17.Nf1 Bb4 18.Qb3 Bc3 19.Bc3 Ng5 20.a5 Rc8 21.ab6 ab6 22.Ra7 Qd6 23.Qb4 Qe6 24.Rea1 h4 25.Rb7 (better is 25.h3!?+/-) 25...h3= 26.g3 (26.Nd2 hg2 27.Kg2 Bh3 28.Kg1 Qf5-+) 26...Bg4+= 27.Qb2 Qf5 28.Be1?? (better is 28.Kg1+=) 28...Bf3-+ 29.Kg1 Ng4?? (29...Qg4! 30.Ra2-+) 30.Qc2? Re6 31.Qd1 Be2 32.Qe2 Nf3 33.Kh1 Ne1 34.Re1 Rf6?? 35.Ra1? Qf2-+ 36.Qf2 Rf2 37.Rba7 Rg2 (37...Rg2 38.R7a2 Nf2 39.Rf2 Rf2-+) 0–1. Thiede,Lars – Hausner,Ivan (2425), Berlin Neukoelln, 1988. (=1.Nf3 d6 2.c4 Nf6 3.d4 g6 4.b4 Bg7 5.Bb2 0-0 6.e3 Nbd7 7.Be2 e5 8.0-0)

10.d5 a5= 11.a3 Qe7 (11...Ne5 12.Bd4=) 12.Nc3 Ne5 (12...Nb6 13.Nb5=) 13.Nb5 (13.Nde4 Ne4 14.Ne4 Nf3 15.Bf3 Bb2+=) 13...c6 (13...Nd3 14.Bd3 ed3 15.Qb3=) 14.dc6 (14.Be5!? cb5 15.Bd4+=) 14...bc6= (< 14...Nc6 15.c5 dc5 16.bc5+=) 15.Be5 de5 (< 15...Qe5 16.Nc7 Bd7 17.Na8 Ra8 18.Qa4+/-; < 15...cb5 16.Bc3+=) 16.Nc3 ab4 17.ab4 Ra1 18.Qa1 Bg4 (better is 18...Qb4!? 19.Rb1 Qf8=) 19.Bg4+/- (19.Nde4?! Be2 20.Nf6 Bf6 21.Ne2 Qb4=) 19...Ng4 20.Nce4 (20.h3 Nf6 21.Qa4 Qe6+/-) 20...f5 21.Nc5 (21.h3!?+=) 21...e4= 22.Qc1 Qh4 (22...Qe5!? 23.g3 Qc3=) 23.h3+= Be5 24.Nd7 (24.f4 Qg3 25.hg4 Qe3 26.Kh1 Bf4+/-) 24...Bd6 (24...Bh2 25.Kh1=) 25.c5 (better is 25.Nb3+=) 25...Bc7?? (better is 25...Bh2 26.Kh1 Bc7 27.Qc4 Kg7 28.Qc3 Kh6=) 26.Qc4+- Kg7 27.Nb3 Ne3?? 28.fe3 Qg3 29.Rf2 Qh2 30.Kf1 Bg3 31.Nf6?? Qh1 32.Ke2 (32...Kf6 33.Nd4–/+). Moxie – manson, Live Game Caissa's Web, 2005.

11.a4 c5 12.dc5 dc5 13.bc5=.

11.a4 g5 12.b5 Bf5 13.a5 h5 14.Nd5 c6 15.Nf6 Qf6 16.Bh5 Qh6 17.Bg4 Qg6 18.Bf5 Qf5 19.Qc2 Ng6 20.f3 d5 (better is 20...cb5 21.fe4 Qd7+-) 21.a6 ba6 22.bc6 Qe6 23.cd5 Qd5 24.Ne4 Rac8 25.Rfc1 g4 26.Qc4 Qh5 27.Ra6 gf3 28.gf3 Qf3= 29.Nf2 Nh4 30.Qf1 Re6 31.d5?? Rg6 (31...Rg6 32.Ng4 Rg4 33.Qg2 Qg2) 0–1. nizinna – uomonelmuro (1750), kurnik, 2011.

11.Qb3 c6 12.d5 c5 13.bc5 dc5 14.Rad1 b6 15.a4 Bf5 16.a5 N8d7 17.Nb5 a6 (17...ba5!? 18.Nd6 Rb8=) 18.Nd6+/- Re7 19.f4 ef3 (19...ba5 20.Qa3+=) 20.Bf3+/- (worse is 20.Nf3 Bg4 21.h3 Qb8 22.Bf6 Bf6 23.Nf7 Bh3 24.Nh6 Kg7+=; 20.Nf5 fe2 21.Ne7 Qe7 22.ab6 Nb6 23.Bf6 ed1Q (23...ed1B?! 24.Be7 Bb3 25.Nb3+=) 24.Be7 Qb3 25.Nb3 Nc4 26.Bc5 a5–/+) 20...Rb8 21.e4 (21.Nf5!? gf5 22.Qd3+/-) 21...ba5= 22.Nb7 (worse is 22.Nf5 gf5 23.Qc2 Rb2 24.Qb2 fe4+=) 22...Qc8 23.Bf6 Nf6 24.ef5 Reb7 25.Qa3 Qf5 26.Qc5 a4 27.Qa3 Rb4 28.d6 (better is 28.Qe3!?=) 28...Qc5–/+ 29.Kh1 Qd6 30.Ne4 Qc6 (30...Qc7!? 31.Nf6 Bf6–/+) 31.Nf6+= Bf6?? (31...Qf6 32.Bd5 Qc3 33.Qc3 Bc3 34.Rf7–/+) 32.Bd5 (32.Bc6 Bb2 33.Qf3 Rf8+-) 32...Kg7?? (better is 32...Qb6 33.Qf3 Kg7=) 33.Rf6 (better is 33.Bc6 Rc4 34.Qf3 Rc6 35.Qc6+-) 33...Kf6 (33...Qf6 34.Qd3 a3 35.Qa3 Rb1-+) 34.Qc3 ½–½. Stavast,DW – Den Herder,DW, Netherlands M–class, 1995. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8 9.0-0 e4 10.Nd2 Nf8)

11.Qb3 Bf5 12.Rae1 c6 13.a4 d5 (13...a5 14.b5+=) 14.Rc1 (14.cd5 cd5 15.Rc1 Rc8+=) 14...Ne6 (14...dc4 15.Nc4 Nd5 16.Nd5 Qd5 17.Na5+=) 15.Ba3 (15.cd5 cd5 16.Rc2 Rc8+=) 15...Nc7 (15...Rc8 16.Rfd1=) 16.b5 Bg4 (16...Qd7 17.cd5 cd5 18.a5+=) 17.Bg4 Ng4 18.bc6 bc6 19.h3 (19.Qb7 Bh6 20.Ncb1 Qb8 21.Qc6 Nb5=) 19...Nf6+= 20.Qb7 a5 (20...Re6 21.Bc5+=) 21.cd5 (21.cd5 Ncd5 22.Nd1+=). pcmvr (2760) – emanuelle (2440), net–chess.com, 2006.

11.Nb3 Qe7 12.Qd2+=.

11.Nb3 h5 12.Re1 (12.a4 Ne6+=) 12...N8h7 (12...c6 13.Qc2+=) 13.c5 (13.Qc2 h4+=) 13...d5 14.a4 Ng4 (14...Bg4 15.a5+=) 15.h3 Nh6 16.Bc1 (16.c6 bc6 17.Nc5 Qg5=) 16...Nf5 (16...Qg5 17.Kh1=) 17.Kh2 (17.a5 a6+=) 17...c6 (17...Be6 18.Rf1=) 18.Rh1 (18.b5 Qh4 19.Rf1 Nf6=) 18...Nh4 (18...Qc7 19.Kg1=) 19.g3 (19.Rg1 Nf5=) 19...Qf6 20.Kg1 Nf5 21.h4 (21.b5 Qg5 22.Kh2 Nf6=) 21...Nh6 (21...Nf8 22.Kg2=+) 22.b5 (22.Kg2 Bg4=+) 22...Bg4 23.Na5 (23.Kg2 Be2 24.Qe2 a6=+) 23...Rab8 24.Ba3 g5 25.hg5 Ng5 26.Bg4 hg4=+ 27.Kg2 Qd8 28.Nb3 Re6 29.Ne2 Nh3 30.Qd2 Rf6 31.Nf4 Nf4 32.gf4 Rg6 33.Rh5 Qd7 34.Qe2 Nf5 35.Na5 Rc8 36.bc6 bc6 37.Qa6 g3-+ 38.Rb1 Qe6 39.Rh3? gf2-+ 40.Kf2 Nd6?? 41.cd6?? Qh3-+ 42.Qf1 Qf3 43.Ke1 Qe3 44.Kd1 Rg1 (45.Qg1 Qg1 (45...Qa3?! 46.d7 Rd8 47.Nb3-+) 46.Kc2 Qf2 47.Kb3 Qd4-+) 0–1. Mamedjarova,Turkan – Umudova,Nargiz, Wch U12 Girls, 2001.

11.Nb3 h5 12.h3 h4 13.a4 N8h7 14.Re1 Ng5 15.Bf1 Bf5 16.d5 Qd7 17.Nd4 Bh3 18.gh3 Nh3 19.Bh3 Qh3 20.f3 Qg3 21.Kf1 Qh3 22.Ke2?? (better 22.Kg1=) 22…Qg2 0-1. Arifars17 (2635) - BlindDrunk1 (2720), Rated Bullet game, lichess.org, 2021. (=1.Nf3 g6 2.d4 Bg7 3.e3 d6 4.Be2 Nf6 5.0-0 0-0 6.c4 Nbd7 7.Nc3 e5 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8)

11.b5 Bf5 12.a4 (--> 11.a4 Bf5 12.b5).

11.Rc1 c6 12.a4 a5 13.b5 h5 14.Ba3 N8h7 15.Qb3 h4 16.Rb1 Ng5 17.bc6 bc6 18.Qb6 Qd7 19.Kh1 h3= 20.g3 Ng4? 21.Qb3 Bf8 22.Qd1 Nh6 23.Rb3 Ba6 24.Qc2 f5 25.Rfb1 Ngf7 26.Rb6 Qc7 27.Nce4 fe4= 28.Ne4 Bg7 29.Bd3 Nf5 30.c5 Bd3 31.Qd3 d5 32.Nd6 N7d6 33.cd6 Qf7 34.Qf1 Rad8 35.Qh3 Nd6 36.Bd6 Rd6 37.Kg2 Rf8 38.f4 Qe7 39.Kf2 Qe4 40.R1b2? Re6 41.R6b3 c5! 42.Qg2 cd4 43.Qe4 Re4 44.Rc2 de3 45.Ke2 Ra4 46.Ke3 Rc4 47.Rc4 dc4 48.Ra3 Rf5 49.Ke4 Rc5 50.Ra2 c3 51.Rc2 a4 52.h4 a3 53.g4 a2! 54.Ra2 c2 55.Rc2 Rc2 56.f5 gf5 57.Kf5 Kf7 58.g5 Rc5 59.Kg4 Bc3 60.Kh5 Kg7 61.Kg4 Bd2 62.Kh5 Bg5! 63.hg5 Ra5 64.Kg4 Kg6 65.Kf4 Rg5 66.Ke4 Rf5 67.Ke3 Kf6 68.Ke4 Ke6 69.Kd4 Rf4 70.Ke3 Ke5 71.Kd3 Rf3 72.Kc4 Rh3 73.Kc5 Rc3 74.Kb4 Kd4 75.Kb5 Rc1 76.Kb6 Kd5 77.Kb7 Kd6 78.Kb8 Kd7 79.Ka7 Rb1 80.Ka6 Kc7 81.Ka5-+ Kc6 82.Ka4 Kc5 83.Ka3 Kc4 84.Ka2 Rb8 85.Ka3 Rb7 86.Ka2 Kc3 87.Ka1 Kc2 88.Ka2 Ra7# 0–1. Svitek,Volker (2045) – Orwatsch,Gerhard (2005), Frankfurt–ch, 2006.

11.Qc2 Qe7 12.Rfc1 Bf5 13.Nd5 Nd5 14.cd5+=.

11.Qc2 Qe7 12.d5 Bf5 13.Rac1 h5 14.Nb5 a6 15.Nd4 Bg4 16.Bg4 hg4 17.Rfd1 N8h7 18.Nf1 Ng5 19.Ng3 Bh8 20.Qe2 Rad8 21.Nb3 Qd7 22.Nd2 Nh5 23.Bh8 Ng3 24.fg3 Kh8 25.Nb3 Re5 26.c5 f5 (26...Qb5 27.Qd2+=) 27.Qb2 (27.Na5 Qb5 28.Qb2 Nf7+-) 27...Nf7? (better is 27...Qg7!? 28.cd6 cd6+=) 28.Na5+- Qe7 29.Nb7 Rb8 (29...Ra8 30.Na5 Qg5 31.Nc4+-) 30.Na5 Qg5 (30...dc5 31.a3 Rb5 32.Nc6+-) 31.Qd4 Kg7 32.cd6 cd6 33.Rc7 (better is 33.a4 Qh5 34.Rc7+-) 33...Rh8? (better is 33...Rb5 34.Rf1 Rbd5+/-) 34.Nc6 Qh6 (34...Qf6 35.Ne5 Qe5+-) 35.Ne5 Qh2 (35...de5 36.Qe5 Kg8+-) 36.Kf2 (36.Kf2 Kg8 37.Nf7 Qg3 38.Kg3 Rh3 39.gh3 f4 40.Kg4 fe3 41.Qh8) 1–0. Dobrzhanskaia,Irina (2085) – Goncharov,Oleh (2240), Kiev–ch, 2008. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.c4 Nbd7 7.Nc3 Re8 8.Be2 e5 9.0-0 e4 10.Nd2 Nf8)

11.c5 d5 12.Qb3 (12.b5 Qe7+=) 12...c6 13.b5 h5 (13...Bg4 14.Qd1 Be2 15.Qe2=) 14.a4 Ng4 (14...Bg4 15.Bg4 Ng4 16.h3+=) 15.h3+/- Nf6 16.a5 a6 17.bc6 bc6 18.Qb6 Qe7? (better 18...Qd7!?+=) 19.Qc6+- Bd7 20.Qc7 Rec8 21.Qg3 Rab8 22.Rfb1 Ne6 (22...Ra8 23.Ba3+-) 23.Ba3 (better 23.Ba6 Rc7 24.Be2+-) 23...Bc6?? (23...Rb1 24.Rb1 (24.Ncb1?! Rc6+-) 24...Nc7 25.Rb6+-) 24.Rb6 (better 24.Rb8 Qd8 25.Rab1+-) 24...Nd7 (24...Rb6 25.ab6 Ra8 26.Bb4+-) 25.Ra6 (better 25.Ba6 h4 26.Qg4 Nb6 27.cb6+- (27.ab6?! Rd8+-)) 25...Rb3 (25...h4 26.Qg4 Qd8+-) 26.Ra7 (better 26.Nb3 h4 27.Qd6 Qd6 28.cd6+-) 26...Rc3=+ 27.a6?? (27.Qh2 Rc2 28.Ba6 Rd8-/+) 27...Rc2 (better 27...Nd4 28.Bd1 Be5-+) 28.Bb4-/+ h4 (28...Nd4 29.ed4 Bd4-/+) 29.Qh2? (29.Qg4 Nd4 30.ed4 Bd4-+) 29...Qg5 (29...Nd4 30.ed4 e3 31.Qd6 ef2 32.Kh2 Qe2 33.Rd7 Bd4 34.Re7 Rd2 35.Re2 Re2 36.Rf1 Be5 37.Qe5 Re5 38.Rf2-+) 30.Bf1? (better 30.Rd1=+) 30...Nd4! 31.ed4 (31.Rc7 Rd8 32.ed4 Bd4 33.Rc6 Be5 34.Qe5 Ne5-+) 31...Bd4 (31...Rd2 32.Rc7 Rc7 33.Qc7 Rf2 34.Qc8 Nf8 35.Rd1-+) 32.Rd1 e3 (32...Bc5?! 33.Bc5 Nc5 34.Rc7=+; worse 32...Nc5 33.Rc7 Rc7 34.Qc7-+) 33.Nf3 (33.Rc7 Rc7 34.Qc7 ed2 35.Qc6-+) 33...ef2=+ 34.Kh1 Qf6 (better 34...Rc1 35.Rc1 Qc1-+) 35.Nd4+- (35.Rd4 Rc1 36.Qd6 Rf1 37.Kh2 Rb1 38.Qf6 Nf6-+) 35...Ne5 (35...Ra2 36.Nc6 Qc6+-) 36.Nc2 d4 (36...Nc4 37.Rd3 Be8 38.Bc3+-) 37.Nd4 (better 37.Rd4 g5+-) 37...Nf3 (37...Be4 38.Nb5 Qe6 39.Rc7 Rc7 40.Rd8 Kh7 41.Nc7+-) 38.Nf3 (38.Qd6 Qd6 39.cd6 Nd4 40.Rd4 Rd8+-) 38...Bf3 39.Rd6 (better 39.Qd6 Qd6 40.Rd6 Be4+-) 39...Qg5 (better 39...Qa1 40.Qg1 fg1Q 41.Kg1 Be2-+) 40.gf3+- Qe3 41.Qg2 Kh7 42.Rdd7 (42.Qg6 Kh8 43.Qf6 Kg8 44.Qf7 Kh8 45.Qg7) 42...Rf8 (42...Kh8 43.Rf7 Qh6 44.Qg5 Qg5 45.Rh7 Kg8 46.Bc4 Qd5 47.Bd5 Kf8 48.Rh8) 43.Bd2 (43.Rf7 Rf7 44.Rf7 Kh6 45.Qg4 g5 46.Bd2 Qf3 47.Qf3 Kg6 48.Qf6 Kh5 49.Qg5) 43...Qe6 44.Qg5 Qh3 (44...Qe3 45.Rf7 Rf7 46.Rf7 Kg8 47.Qg6 Kh8 48.Qg7) 45.Bh3 Kg7 (45...f1R 46.Bf1 Kg8 47.Rf7 Rf7 48.Qg6 Kh8 49.Bc3 Rf6 50.Bf6) 46.Qh6 Kf6 (46...Kg8 47.Bc3 f1Q 48.Bf1 Re8 49.Qg7) 47.Rf7! Rf7 (47...Rf7 48.Bc3 Mate attack) 48.Qg5 (48.Bc3) 48...Kg7 49.Rf7 (49.Bc3 Kh7 50.Rf7 Kg8 51.Qg6) 49...Kf7 50.Bc3 (50.Qd5 Kf6 51.Qe6 Kg7 52.Qe7 Kh8 53.Bc3 Kg8 54.Be6) 50...Ke8 (50...f1R 51.Bf1 Ke6 52.Bb5 h3 53.Qg6 Kd5 54.Qd6) 51.Qf6 (51.Qg6 Kf8 52.Qg7 Ke8 53.Bd7 Kd8 54.Ba5) 51...g5 (51...f1Q 52.Bf1 Kd7 53.Bb5 Kc7 54.Be5 Kc8 55.Qf8) 52.a7 g4 (52...f1Q 53.Bf1 Kd7 54.a8Q g4 55.Qac6) 53.a8Q (53.a8Q Kd7 54.Qac6) 1-0. Arifars17 (2680) - Parmen_Gelazonia (2510), Rated Bullet game, lichess.org, 2020. (=1.Nf3 d6 2.e3 g6 3.d4 Bg7 4.c4 Nd7 5.Nc3 e5 6.Be2 Ngf6 7.0-0 0-0 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8)

11.Re1 a5 12.Qc2+=.

11.Re1 b6 12.d5 Bd7 13.b5 Qc8 14.f4 (14.Qc2!?+=) 14...ef3= 15.Bf3 Ng4 16.Nf1 Ne5 17.Rb1? (better is 17.Be2!?+=) 17...Nc4-+ 18.a4?? (better is 18.Qb3 Nb2 19.Rb2-+) 18...Nb2 (18...Nb2 19.Qc2 Bc3 20.Qc3 Na4-+) 0–1. Schroeder,Ralf (1670) – Gnass,Erhard, Lichtenberger Sommer, 2015.

11.Re1 c6 12.b5 h5 13.bc6 bc6 14.f3 ef3 15.Bf3 Bg4 16.h3 Bf3 17.Qf3 d5 18.Qg3 (18.Rac1 Rb8 19.Ba3 Ne6=) 18...Bh6 Attacking the backward pawn on e3 (18...Qb8 19.Qb8 Rab8 20.Ba3=+) 19.Nf1 (19.Rab1 Qe7=) 19...Ne6 20.Rab1 Ng5 21.Nd2 Nge4 22.Nde4 Ne4 23.Ne4 Re4 24.cd5 Qd5 25.Bc3 Rae8 26.Rb8 Rb8 27.Qb8 Kh7 28.Qb3 (28.Bd2!? Qa2 29.Re2-/+) 28...Re3 29.Qd5 Re1 30.Kf2 cd5 31.Be1 h4 32.Kf3 g5 33.Ba5 Kg6 34.Bd8 f5 35.Ke3 Bg7 36.Ba5 f4 37.Kd3 g4! 38.Be1?? (38.hg4 Kg5 Decoy) 38...f3 39.Bh4 fg2 40.Bf2 gh3 (40...gh3 41.Bg1 Kg5-+) 0-1. Banos,O (2230) - Zanan,E (2510), 20th Sants Open, 2018. (=1.Nf3 Nf6 2.d4 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 d6 6.c4 Nbd7 7.Nc3 e5 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8)

11.f3 ef3 12.Rf3 d5+=.

11.g4 Ng4 12.Bg4 Qg5 13.h3 f5 14.Nde4 fe4 15.Kh2 Bf5 16.Rg1 c6 17.b5 Kh8 18.Qa4 Qh4 (18...c5!? 19.Qc2 cd4 20.ed4 Ne6–/+) 19.Raf1= Ne6 20.Bf5 gf5 21.bc6 bc6 22.Qc6 Ng5 23.Rg3 f4 24.Rg5 Qg5 25.Ne4 Qg6 26.Nd6 Rad8 27.c5 fe3 28.fe3 Qc2?? 29.Qg2+- Qg2 30.Kg2 Bh6 31.Nf7 Kg7 1–0. Hentunen,Asko (2265) – Ebeling,Mika (2260), Espoo, 1990.

11.g4 h6 12.Rb1=.

11.h3 h5 12.a4 N8h7 13.a5 h4 14.b5 Bf5 (14...Ng5 15.Qb3+=) 15.a6+- b6 16.f4 Rc8 17.Rf2 (17.Qe1 Nd7+-) 17...d5 (17...c6 18.Rf1+=) 18.Rc1 (18.Qa4 Be6+=) 18...Nf8 (18...c5 19.bc6 Rc6 20.cd5+-) 19.cd5+- Nd5 20.Nd5 Qd5 21.Bc4 Qd7 22.Qb3 Red8 (22...Ne6+-) 23.Bf1 (23.d5!?+-) 23...c6+= 24.bc6 Rc6 25.Rc6 Qc6 26.Bb5 Qc7 (26...Qd5 27.Qd5 Rd5 28.Bc6+=) 27.Rf1+= Nh7 (27...Ne6!?+=) 28.Rc1+- Qb8 29.Bc6 (29.Ba3 Bf8+-) 29...Nf6+= 30.Nc4 (30.Ba3 Be6 31.Qb1 Nd5 32.Bd5 Bd5+=) 30...Be6 (30...Nd5 31.Ne5 Qd6 32.Bb7+-) 31.Qc2 Rc8 32.Ne5 Qd6 33.Qd2 Bd5 (33...Nd5 34.Bb7 Rc1 35.Qc1+=) 34.Bb7 (34.Bd5 Rc1 35.Qc1 Qd5+-) 34...Rb8 (34...Rc7 35.Qe1+=) 35.Nc6 (35.Qc2 Rf8+-) 35...Bc6+= 36.Rc6 Qd7 (36...Qe7 37.Qe1 Nd5 38.Rg6 fg6 39.Bd5 Kh7 40.Qb1+=) 37.Ba3 Ne8 (37...Nh5 38.Qa2+-) 38.Qc2 Bf8 (38...Qf5 39.Be7 Bf6 40.Bf6 Nf6 41.Qf2+-) 39.Bf8 Kf8 40.Qe4 Qe7 41.Qe5 Qe5 42.fe5 Ke7 43.e4 (43.Kf2 Rd8+-) 43...Kd8 (43...Rd8 44.d5 f6+-) 44.d5 (44.Rb6 ab6 45.a7 Kc7 46.ab8R Kb8+-) 44...b5 (44...Ke7 45.Kf2+-) 45.Kf2 b4 46.Ke1 (46.Ke3 g5+-) 46...Nc7 (46...Ke7 47.Ke2 f6 48.ef6 Nf6 49.Kd3+-) 47.Kd1 (47.Kd2 b3 48.Kc1 Nb5+-) 47...Nb5 48.Kc1 (48.Rc4 Nc7+-) 48...Ke7 (48...Nd4 49.Rc4 Ne2 50.Kd2 Nf4+-) 49.Rc4 Nc3 50.Kb2 (50.Kd2 Na4+-) 50...Nd1 (50...Kf8 51.Kb3 (51.Rb4?! Nd1 52.Kb3 Ne3+-) 51...Ne2 52.Rc7+- (52.Rb4?! Nf4+-)) 51.Kb3 Ne3 (51...Nf2 52.Rc7 Kf8 53.e6 (worse 53.Kb4 Nd3 54.Kc4 Ne5 55.Kc5 Nd3 56.Kd4 Nf4+-) 53...Ne4 54.Rf7 Kg8 55.Kb4+-) 52.Rc7 Kf8 53.d6 (53.Bc6 Nf1 54.Rb7 Rc8+-) 53...Re8 (53...Rd8 54.Bc6 g5 55.Ra7+-) 54.Bd5 (54.Bc6 Rb8+-) 54...Re5 (54...Nd5 55.ed5 Rd8 56.Ra7+-) 55.Rc8 (55.Rc8 Re8 56.d7+-) 1–0. Kannenberg,KH (2185) – Souleidis,G (2410), 19th OIBM, 2015. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 d6 6.c4 Nbd7 7.Nc3 e5 8.b4 e4 9.Nd2 Re8 10.Bb2 Nf8)

11.h3 h5 12.Qc2 Bf5 13.d5 N8h7 14.Nb3 Qd7 15.h4 g5 16.Qd1 (better is 16.hg5!? Ng5 17.Nd4+=) 16...gh4=+ 17.Bh5 (17.Nd4!?=+) 17...h3–/+ (17...Nh5?! 18.Qh5 h3 19.Nd4=+) 18.gh3 Bh3 19.Re1?? (better is 19.Be2-+) 19...Nh5 20.Qh5 Re5 (20...Re5 21.Qh4 Bf6 22.Qg3 Rg5-+) 0–1. Quehl,Thomas (1945) – Remmler,Volker (2145), Lemgo GER, 8th Lippe Cup, 2011.

12.b5 h6 13.a5+=.

12.Re1 a5 13.ba5 Ra5 14.h3=.

12.Re1 h5 13.Nf1 (13.a5 a6+=) 13...N8h7 (13...h4 14.a5=) 14.Ng3+= Bg4 15.f3 (better 15.h3!? Be2 16.Nge2+=) 15...ef3=+ 16.gf3 Bc8 (16...Bd7 17.h4 Re3-+) 17.e4? (better 17.f4!?=+) 17...h4 (17...Ng5 18.Qd2 Nh3 19.Kh1-+) 18.Nh1 Nh5 19.Bc1? (better 19.Nf2 Ng5 20.Qd2–/+) 19...Qf6?? (better 19...c5 20.bc5 dc5-+) 20.Be3 (20.Nd5!? Qd8 21.Nc3=) 20...c6 (20...Nf4 21.Nd5 Qg5 22.Ng3 Nh3 23.Kg2–/+) 21.Qd2 (21.Nf2 Ng5 22.Nd3 Be6=+) 21...Nf4 (21...Ng5 22.Bg5 Qd4 23.Nf2 Qc3 24.Rab1–/+) 22.Bf4 Qd4 23.Nf2 Qc3 24.Rac1 (24.Qd6 Bf8 25.Qd3 Qb4–/+) 24...Qd2–/+ 25.Bd2 g5 (25...Bd4 26.Bf4–/+) 26.Kh1 (26.Red1 Be5=+) 26...Be6 27.Bd3 (27.Kg2 Bd4=+) 27...Rad8 (27...Bd4 28.Kg2–/+) 28.Be3=+ a6 (28...b6 29.Kg2=+) 29.a5 d5 30.ed5 cd5 31.Bh7 (31.c5 Ra8=+) 31...Kh7 32.Bg5 f6 (32...Rc8 33.cd5 Bd5 34.Kg2=+) 33.Bh4= dc4 34.Ne4 Attacking the isolated pawn on f6 34...Bd5 (better 34...Rf8=+) 35.Bf6? (35.Nf6 Bf6 36.Bf6 Rg8=) 35...Rc8?? (better 35...Be4 36.Re4 Bf6 37.Rcc4 Kg6 38.Rg4 Kh6-+) 36.Bg7 (36.Bc3 Bc3 37.Rc3 Kh6=) 36...Kg7 37.Kg2 Re6 (37...c3 38.Kf2 Be4 39.Re4=) 38.Nc5 (38.Nc3 Re1 39.Re1 Bc6+=) 38...Rg6 (38...Rf6 39.Re7 Kg6 40.Rc3=) 39.Kf2+= Rh8 (39...Rf8 40.Re7 Kh6 41.Rc3+=) 40.Re5 Rh2 (40...Bc6 41.Rc4 Rh2 42.Ke3+=) 41.Ke3 Bc6 42.Rc4 Kf6 (better 42...Rgg2!?+=) 43.Re6+- Kg7 44.Rg6 Kg6 45.Rf4 (better 45.Na6!? Ra2 46.Nc5+-) 45...Rb2 (45...Rh1 46.Kd4+=) 46.Nd3 (46.Rd4 Kf5+=) 46...Rb3 47.Kd4 (47.Kd2 Kg5 48.Rf7 Kh4+=) 47...Kg5= 48.Rf8 Bb5 49.f4 Kh6 50.Ne5 Kg7? (better 50...Rb4 51.Kc5 Ra4=) 51.Rf7+- Kh8? (better 51...Kh6 52.Kc5 Rc3 53.Kd6 Rc8+-) 52.Kc5 Rc3 (52...Rg3 53.Rb7 Rh3 54.Rb5 ab5 55.a6+-) 53.Kb6 ½–½. Mokhov,Anatoly – Neklesa,Vladimir, 2011.

13.a5 a6 14.Qb3+/-.

13.a5 Ne6 14.Qb3 (14.a6 Qc8+/-) 14...c5 15.dc5 (15.d5 Nc7+/-) 15...Nc5+= 16.Qa3 (16.Qc2 h4+=) 16...Bg4 (16...h4 17.h3+=) 17.h3 (17.Bg4 hg4 18.Rfd1 Nd3+=) 17...Be2= 18.Ne2 Nfd7 (18...Rc8 19.Bd4+=) 19.Bg7 Kg7 20.Rad1 Ne5 (20...Rc8 21.Nf4+=) 21.Qc3 (21.Nf4 Rc8+/-) 21...f5 (21...a6 22.b6+=) 22.Nf4 Ne6 (22...Rc8 23.Nd5+=) 23.Nb3 (23.Kh2 Rc8+=) 23...Kh6 (23...Rc8 24.Nd4 Nf8 25.Nh5 Kh7 26.Nf4+=) 24.Ne6+/- Re6 25.Rd4 (25.Rd5 Qc7 26.c5 Nd3+/-) 25...Qf6 (25...Rc8 26.Rfd1+=) 26.Rc1 (26.Ra1 Rc8+=) 26...g5 (26...Rc8 27.Rc2+=) 27.Qd2+/- g4 28.hg4 hg4 29.Rd5?? (29.Rd1 Qg6 30.Qb4 Nf3 31.Kf1 Nd4 32.Nd4+=) 29...Kg7 (better is 29...Nf3 30.Kf1 Nd2 31.Rd2 f4-+) 30.Nd4+- Re7 31.Rd6! Qg5 32.Ne6?? Re6!-+ 33.Re6?? Nf3! 34.Kf1 Nd2 (34...Nd2 35.Ke1 Rd8-+) 0–1. Kaenel,Hansjuerg – Wirthensohn,Heinz, Ch Europe (juniors), 1969.

13.a5 Ng4?! 14.h3 Nf6!

13.a5 Ng4?! 14.h3 Qh4? 15.hg4 hg4 16.Nde4! Be4 17.Bg4 f5 18.Bf3 Nh7 19.g3 Qh6 20.Be4 fe4 21.Kg2 Qg5 22.Nd5 Rac8 23.Rh1 c6 24.bc6 bc6 25.Nf4 Qf5 26.Ba3! c5 27.Rb1! cd4 28.Rb7! d3 29.Qb3 Nf6 30.Bd6 Nh5 31.c5 Kh8 32.Ng6 Qg6 33.Qd5 1–0. Espig – Zuckermann, Dresden 1969.

13.Qb3 h4 14.Rfe1 Bh6 15.Rac1 Ne6 16.Nd5 Nh5 17.Qd1 Neg7 18.Ba3 c6 19.Nc3 d5 20.cd5 cd5 21.Qb3 Be6 22.Rc2 f5 23.b6 a6 24.a5 f4 25.Bh5 Nh5 26.Na4 Qg5 27.Nf1 f3 28.g3 Qg4 0–1. Junge – Hanich, corr DDR.

12.Ba3 N8h7 13.b5 Bf5 14.a5 Ng4 (14...h4 15.c5+=) 15.a6 (15.c5 Ng5+/-) 15...ba6+= 16.ba6 Qh4 17.Bg4 hg4 18.Re1 (18.c5 Bf8+=) 18...Ng5 19.Qe2 (better is 19.c5!?+=) 19...c5 20.Nb5 cd4 (better is 20...Nf3! 21.Nf3 gf3+=) 21.ed4+= (worse is 21.Bd6 d3 22.Qf1 Ba1 23.Ra1 Red8–/+) 21...Ne6 22.Bd6 (22.Nb3 d5 23.cd5 Nf4+=) 22...Nd4= 23.Nd4 Bd4 24.Ra3 Rad8 25.c5 Qg5 (25...Rc8 26.Rb3=) 26.Nf1 (26.Nb3 Bc3 27.Rc1 Bf6+=) 26...Bc8 27.Qc4 Qf6 28.Qc2 Be5 29.Be5 Re5 30.c6 Qe6 31.Rc1 f5 32.g3 g5 33.Qa2 f4 34.Qe6 Re6 35.gf4 gf4= 36.Ra4 Rde8 37.Ra3? e3–/+ 38.fe3 fe3 39.Ng3 e2 40.Re1 Rc6 41.Re2 Re2 42.Ne2 Ra6 43.Ra6 Ba6 44.Nc3 Kg7 45.Kf2-+ Kg6 46.Ke3 Kf5 47.Nd1 Ke5 48.Nf2 Bc8 49.Kd3 Kd5 50.Kc3 a5 51.Kb2 Kd4 52.Ka1 ½–½. Polzer,Hans – Paskuy,Werner, Regionalliga NO, 2000. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.c4 0-0 5.Nc3 d6 6.Be2 Nbd7 7.0-0 e5 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8)

12.a5 a6! 13.Qc2 Bf5 14.b5 N8h7 15.Nd5 Ng4 16.b6 c6! 17.Nc7 Qh4 18.Bg4 hg4 19.Rfc1 Ng5 20.Nf1 Nf3! 21.Kh1 f6 22.Ba3 Bf8 23.Ra2 Kf7 24.Qb3 Be7 25.Rd1 Rh8 26.h3 Ng5 27.Kg1 gh3 28.g3 h2 29.Kh1 Qh3 30.f4 ef3 31.Nh2 Be4 0–1. Novopashin – Podgayets, 1968.

12.a5 c6 13.b5 Bf5 14.a6 ba6 15.Ra6 c5 16.Nb3 Ng4 (16...Bc8 17.Ra2 cd4 18.Nd4+/-) 17.Nd5 (17.h3 Nf6+-) 17...Ne6 18.Qa1 Qh4 (better is 18...cd4 19.Nd4 Nd4 20.Bd4 Ne5+-) 19.Bg4 Bg4 (19...hg4 20.dc5 Bb2 21.Qb2 (21.Ra7 Ba1 22.Rfa1 Ra7 23.Ra7 dc5-+) 21...Nc5 22.Nc5 dc5 23.Nf6 Kf8 24.Ne8 Re8 25.Ra7+-) 20.dc5 Bb2 21.Qb2 Ng5 22.Nf6 Kf8 23.Ne8 Nf3 24.gf3 Ke8 25.Rd6 Qg5 26.Qh8 Ke7 27.Qf6! Qf6 28.Rf6 Bh3 29.Rf4 ef3 30.Ra1 Be6 31.Nd4 g5 32.Ne6 gf4 33.Nf4 Rg8 34.Kf1 Rg5 35.Ra7 Ke8 36.c6 Rc5 37.Ra4 (37.Ra4 Kf8 38.Nd3+-) 1–0. Tutov,Valeriy – Romanenko,Aleksandr (1680), Kiev Spring, 2011.

12.a5 Qe7+=.

12.a5 Bf5 13.a6 b6 14.f3 (14.b5 Rc8+-) 14...Bh6 (14...ef3 15.Bf3 Ng4 16.Nd5=) 15.fe4 Be3 16.Kh1 Be6 (16...Bg4 17.d5+-) 17.Nf3 (17.Nb3 Ng4 18.Qe1 Bh6 19.Bg4 hg4+-) 17...Bh6 (17...Ng4 18.Qe1+-) 18.h3 (better 18.Qd3+-) 18...Ng4? (18...c6 19.d5 Bd7 20.Bd3+-) 19.Bc1?? (better 19.hg4 hg4 20.Nh2+-) 19...Ne3+- 20.Be3 Be3 21.e5 (21.Qd3 Bf4+-) 21...de5 (21...c5 22.ed6 cd4 23.Nb5+- (23.Nd4?! Qd6 24.Ne6 Qd1 25.Rad1 Ne6+=)) 22.de5 Qe7 (22...Qd1 23.Rad1 (worse 23.Nd1 Bf4=) 23...c5 24.Nd5 Bd5 25.cd5 cb4 26.Bb5+-) 23.Qb3 (23.Ra4 Nd7+=) 23...Bf4 24.Rae1 (24.Bd3 c5+=) 24...Nd7 Exerts pressure on the isolated pawn 25.Bd3 c6 (better 25...Bg3 26.Re2 Rad8+=) 26.Nd4 (better 26.Re4!? Bh6 27.Nd4+=) 26...Ne5=+ (worse 26...Be5 27.Nc6 Qd6 28.Be4 Bc3 29.Qc3+-) 27.Nc6 Nc6 28.Nd5 (worse 28.Rf4 Qd6 (worse 28...Nb4 29.Ne4 f5 30.Nf6 Qf6 31.Qb4–/+) 29.Re6 fe6-+ (29...Qe6?! 30.Nd5=+)) 28...Qd6 29.Nf4 Qb4 30.Qa2 (30.Qc2 Nd4 31.Qf2+=) 30...Nd4 (better 30...Rad8=+) 31.Qf2+- (worse 31.Ne6 Ne6 32.c5 Kg7= (32...Qc5 33.Bg6 fg6 34.Re6 Re6 35.Qe6 Kg7 36.Rf7 Kh6 37.Qf6 Qc1 38.Kh2+-)) 31...Nf5 32.Ne6 (32.g4!? hg4 33.hg4 Bc4 34.gf5 Bd3 35.Nd3+-) 32...fe6+- 33.g4 (33.Bf5?! ef5 (worse 33...gf5 34.Qh4+=) 34.Qg3 Kf7=+) 33...hg4 (33...Rad8 A) 34.Bf5?! A1) 34...gf5? 35.gf5 Qc3 36.Qg2 Kh8 37.Re6 (37.fe6?? Rd3 38.e7 Rh3 39.Kg1 Rg3 40.Rf8 Kg7-+) 37...Re6 38.fe6+-; A2) 34...ef5 35.Re8 Re8=; B) 34.gf5 Rd3 35.Qg2+-) 34.hg4+- Qd6 (34...Rad8 35.gf5 Rd3 36.Re6 Re6 37.fe6 Qe7 38.Qf7 Qf7 39.Rf7 Rd1 40.Kg2 Re1 41.Ra7 Re6+-) 35.gf5+- (35.Bf5?! ef5 36.Re8 Re8 37.gf5 g5=) 35...Qd3 (35...ef5 36.Qg2 Kh7 37.Qb7 Kh6 38.Re2+-) 36.Qg2 (36.fe6?! A) 36...Qc4 37.Qf7 Kh8 38.Rf2 (38.Qg6?? Qh4 39.Kg2 Rg8-+) 38...Qc6 39.Kg1+-; B) 36...Rf8 37.Qg2 Kg7=) 36...Kh8 (36...Qd7 37.Qg6 Kh8+-) 37.fg6 (better 37.f6 g5 38.Rf3+-) 37...Qd4?? (37...Kg8!? 38.Qg4 Qd7+-) 38.Re4 (38.Qh3 Qh4 39.Qh4 Kg7 40.Qh7) 38...Qg7+- 39.Rh4 Kg8 40.Rh7 (40.Qe4 Rad8 41.Rh7 Re7 42.Rg7 Kg7 43.Qe5 Kg8+-) 40...Qe5 (40...Qd4 41.Qb7 Rf8+-) 41.Rg1 (41.Qb7 Rf8 42.Rg1+-) 41...Qf6 42.Qe4 Rab8 43.Ra7 (43.g7!? Qf5 44.Rh8 Kf7+-) 43...Rbd8 44.Rf7 Rd4 45.Rf6 Re4 46.Rg3 (better 46.Rf7!? Rh4 47.Kg2 Rg4 48.Kh2 Rc4 49.Rb7+-) 46...Rc4+- 47.Rf7 Ra4 48.Ra7 Rc8 49.g7 (better 49.Kg2+-) 49...Rh4= 50.Kg1 Rc1 51.Kf2 Rc2 52.Kf3 Rc3 53.Kg2 Rc2 54.Kf3 Rc3 55.Kg2 Rc2 56.Kg1 Rc1 57.Kg2 Rc2 ½–½. Khurtsidze,Nino (2435) – Soumya,Swaminathan (2280), FIDE Women's World Teams, 2013.

12.a5 Bf5 13.c5 d5 14.b5 Ne6 15.a6 b6 16.cb6 cb6 17.Qb3 Nc7 18.Na2 Ng4 19.Rfc1 Bf8 20.h3+/- Nf6 21.Ba3 g5 22.Bf8 Rf8 23.Nb4 Kg7 24.Nc6 Qd6 25.Qb4 Qb4 26.Nb4 Rfc8 27.Rc2 g4 28.Rac1 Nfe8 29.hg4 hg4+/- 30.Nc6 Kf8 31.Ne5 f6 32.Ng4 Nb5+= 33.Bb5 Rc2 34.Rc2 Bg4 35.f3 ef3 36.gf3 Rc8 37.Rc8 Bc8 38.Nb1 Nc7 39.Nc3 Ke7 40.Bc6 Kd6 41.Bb7= Bd7 42.Na2 Bb5 43.Nb4 Ne6 44.Kg2 Nd8 45.Ba8 Ne6? 46.Bb7 Nd8 47.Ba8 Ne6? 48.Kf2 Nc7 49.Bb7+= Ne6? 50.Kg3 Nd8 51.Ba8 Ne6? 52.Kg4 Nc7 53.Bb7 Be2 54.Bc8 Ke7 55.Bb7 Kd6 56.Kf4 Ke6 57.Bc8 Kd6 58.e4 de4 59.fe4 Nb5 60.Ke3 Bc4 61.Bb7 Nc7 62.Bc8 Nb5 63.Bg4 Nc7 64.Bc8 Nb5 65.Bg4 Nc7 66.Be2 Be6 67.Bd3 Bc8 68.Bc4 b5 69.Be2 Na6 70.e5 ½–½. Panggabean,H (2220) – Lahiri,A (2340), 2nd Dato' Arthur Tan Malaysian Open, 2005.

12.a5 h4 13.h3 N8h7 14.Re1 Ng5 15.Bf1 Bf5 16.a6 b6 17.Nd5 c6 18.Nf6 Qf6 19.Ra2 Qe7 20.d5 c5 21.Bg7 Kg7 22.Qb3 cb4 23.Qb4 Rac8 24.Qb2 (24.Rb2 Rc7+=) 24...f6 (24...Qf6 25.Qb5=) 25.Qd4 (25.Nb3 Qe5+=) 25...Qe5= 26.Qe5 Re5 27.Rb1 Re7 28.Nb3 Nf7 29.Nd4 Bd7 30.Be2 Ne5 Exerts pressure on the backward pawn 31.Rb4 Rc7 32.Ra3 (32.Rd2 Kf7=) 32...Re8 33.Kh2 (33.Rc3 Rec8=) 33...Rec8=+ 34.Rc3 f5 (34...Rc5 35.f4 ef3 36.gf3 Rd5 37.cd5 Rc3 38.Rb3 Rb3 39.Nb3-/+) 35.f4=+ Nf7 (35...Nd3 36.Bd3 ed3 37.Nf3=+) 36.g3 hg3 37.Kg3 Kf6 38.Rc1 g5 (38...Rg8 39.h4=) 39.fg5 Ng5 40.h4 Nf7 41.Rf1 Ne5 42.h5 Rg8 43.Kf2 Rg5 44.Rh1 Rc8 45.Rbb1 Rcg8 (45...Nc4 46.Rbc1 Ne5 47.Rc8 Bc8 48.h6=+) 46.Rh2 Rh8 Attacking the backward pawn on h5 47.h6 (47.Rf1 Bc8 48.Nb5 Ba6 49.Nd6 Ke7=) 47...Rg6 (47...Rh7!?=+) 48.h7+= Rg7 49.Rbh1 (49.Rh6 Rg6 50.Rh4 Rg7=) 49...Nf7 50.Rh5 Rg5 51.Rg5 Ng5 52.Rh6 Ke7 53.Rh5 (53.Rg6 Nh3 54.Ke1 Rh7 55.Nc6 Bc6 56.dc6 Kd8+/-) 53...Nh7 (53...Kf6 54.Nc6 Bc6 55.dc6=) 54.Bf1 (better 54.Rh6!?+/-) 54...Kf6= 55.Bh3 Increases the pressure on the backward pawn (better 55.Rh6!? Kg5 56.Rd6=) 55...Kg6-/+ 56.Rh4 Ng5?? (better 56...Rf8-/+) 57.Rh8+- f4 (57...Nh3 58.Rh3 Bc8+-) 58.Bd7 (58.Bd7 Nf3 59.Nf3 fe3 60.Ke3 ef3 61.Kf3+-) 1-0. Ibrahimli,Murad (2435) - Bodi,Ti (2370), Titled Tuesday, 2021. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.d4 Nbd7 7.c4 e5)

12.a5 h4 13.h3 N8h7 14.Re1 Ng5 15.Bf1 Bf5 16.Ne2 Nh5 17.Qb3 Qd7 18.Kh2 Bh3 19.gh3 Qf5 20.Kg1 Nh3 21.Bh3 Qh3 22.Nf4 Qg4 23.Kh1 Bh6 24.Qd1 Qf5 25.Ra3 Bf4 26.ef4 Nf4 27.d5 Nd3 28.Bd4 c6 29.a6 cd5 30.ab7 Rab8 31.Rd3 ed3 32.Re8 Re8 33.Ba7 dc4 34.b8Q Rb8 35.Bb8 c3 36.Ba7 Qd5 37.Kh2 Qe5 38.Kg1 Qg5 39.Kh2 Qf4 40.Kg2 c2 0–1. Kozomara – Gligoric, 1957.

12.b5 Bf5 (--> 11.a4 Bf5 12.b5 h5).

12.b5 N8h7 13.a5 Ng5 14.a6 ba6 15.ba6 Ng4 16.Ra2 Bf5 17.Nd5 Ne6 18.Qc2 c6 19.Nb4 Bh6 (better is 19...Qb6 20.Rb1 Bd4 (20...Qb4? 21.Bc3 Qb1 22.Nb1+-) 21.Bd4 Nd4=+) 20.Nc6 (20.Ne4 d5 21.Nc6 Qc7 22.Bg4 Be4–/+) 20...Qh4 21.Bg4 Qg4 22.Qd1 Qh4 23.Ba3 Bg4? 24.Qe1 Bf3?? 25.gf3 ef3 26.Kh1 Bf4 27.ef4 Nf4 28.Ne5! de5 29.Qe4 ed4 30.Qf3 Rad8 31.Ne4 Re6 32.Bc1 Nh3 33.Ng3 Rde8 34.Bd2 f5 35.Ra3 f4 36.Nh5 Ng5 37.Qf4 Qh5 38.Qg5 Qe2 39.Kg1 Qc4 40.Rh3 (40.Rh3 Qc7 41.Rc1+-) 1–0. Plaskett,Jim (2440) – Treppner,Gerd (2340), Charlton op, 1983.

12.Qc2 a5+=.

12.Qc2 Bf5 13.a5 a6 14.b5 Ne6 15.ba6 ba6 16.Nb3 Ng5 17.Rfd1 h4 18.d5 h3 19.g3 Bg4 20.Nd4 Qd7 21.Bg4 Ng4 22.Nce2 Rab8 23.Bc3 Ne5 24.Nc6 Nc6 25.dc6 Qc6 26.Bg7 Kg7 27.Qc3 f6 28.Nf4 Re5 29.Rac1 Qc5 30.Kf1 Qa5 31.Qa5 Ra5 32.c5 Rc5 33.Rc5 dc5 34.Rd7 Kh6 35.Ke2 Rb2 36.Rd2 Rd2 37.Kd2 Nf3 38.Kc3 Nh2 39.Nh3 a5 40.Nf4 Ng4 41.Ne6 Nf2 42.Nc5 Kg5 43.Ne6 Kg4 44.Nc7 Kg3 45.Nd5 f5 46.Ne7 Kf3 47.Kd2 f4 (47...f4 48.Nd5 g5-+) 0–1. Lorenc,To1 (2140) – Chudinovskikh,A (2290), Karlovy Vary Open, 2011.

12.Qc2 Bf5 13.a5 a6 14.b5 N8h7 15.ba6 ba6 16.Rfb1 Ng4 (16...Ng5 17.Ra3+=) 17.h3 (17.Nde4?! Qh4 18.Bg4 hg4=) 17...Qh4?? (better is 17...Ngf6+/-) 18.hg4+- hg4 19.Nf1 (19.Nce4 g3 20.Bd3 Qh2 21.Kf1 Qh1 22.Ke2 Bg4 23.Nf3 Qg2-+; 19.Nde4?! g3 20.Bd3 Be4 21.Be4 gf2 22.Kf1 Rab8+-) 19...Bd4 20.Nd5 Be5? 21.Nc7 Ng5 22.Ne8 Nf3 23.Bf3 ef3 24.e4 1–0. pcmvr (2745) – emanuelle (2445), net–chess.com, 2006.

12.Qc2 Bf5 13.a5 a6 14.b5 N8h7 15.Nd5 Ng4 16.b6 cb6 17.Nb6 Rb8 18.Ba3 Bd4 19.Bg4 hg4 20.ed4 e3 21.Qc3 ed2 22.Qd2 Ng5 23.Qf4 (23.Rae1 Ne4 24.Qf4 Kg7+/-) 23...Re4 (better is 23...Ne6!? 24.Qe3 g5+=) 24.Qd6+- Qd6 25.Bd6 Rbe8 26.d5 Rd4 27.Bc5 Rd3 28.Be3 Ne4 29.Rfd1 Rb3 30.d6 Rd8 31.c5 f6 32.Nd5 Kf7 33.Re1 g5 34.f3 gf3 35.gf3 Nc3 36.Nc3 Rc3 37.Bf2 Bd7 38.Rab1 Bc6 39.Re7 Kg6 40.Rbb7 Bb7 41.Rb7 Kf5 42.Kg2 Ke6 43.Re7 Kd5 44.Ra7 Rc2 45.Ra6+- f5 46.Ra7 Rb8 47.d7 Kc6+/- 48.f4 g4= 49.Kg3 Rh8 50.h4? gh3-+ 0–1. Thoma,Robert (2255) – Van der Weide,Karel (2355), Liechtenstein op, 1997. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.d4 e5 7.0-0 e4 8.Nfd2 Re8 9.c4 Nbd7 10.Nc3 Nf8 11.a4 h5)

12.d5 a5 13.ba5 h4 14.h3 (14.a6 Ra6 15.c5 Ra8+=) 14...N8d7 (14...Ra5 15.Qc2 Ra8 16.a5+=) 15.a6 (15.Nb3 Ne5+=) 15...ba6 16.Nb3 (16.Rb1 Nc5+=) 16...Ne5 (16...Rb8 17.Rb1+=) 17.Nd4 (17.Rb1+=) 17...Bf5 (17...Rb8!? 18.Qd2 Qd7+=) 18.Nf5+/- gf5 19.Rb1 Nfd7 20.Ba3 (20.Qc2 Nc5+/-) 20...Qg5 (20...Nc4 21.Bc4 Bc3 22.Qe2+=) 21.Rb7 Reb8 22.Rc7 Bf8 23.Qa1 Qd8 24.Rc6 Nf6 25.Rd1 Qd7 26.c5 Nc6 27.dc6 Qc6 28.cd6 Bg7 29.Bb2 Qb7 30.Nb5 Ne8 31.Bg7 ab5= 32.Bf6 Ra4 33.Qe5 Qd7 34.Bh4 Rb6 35.Qe8!+- Qe8 36.d7 Qd7 37.Rd7 b4 38.Bc4 b3 39.Bf7 Kf8 40.Bb3 Rb3 41.Rd5 f4 42.Rf5 Kg7 43.Bf6+- Kg6 44.Rf4 Rb6 45.Bd4 Re6 46.g4 Ra8 47.h4 Rb8 48.Kg2 Kh7 49.h5 Re7 50.Kg3 Rg8 51.Kh4 (51.Kh4 Rge8 52.g5+-) 1–0. aschellen (1945) – wernikzb (1900), Friendly Game, 2006.

12.Nd5 Nd5= 13.cd5 Qg5 14.Re1 Qd5 15.Bc4 Qf5 16.Qb3 c6 17.a5 d5 18.Bf1 Bd7 19.a6 b6 20.Rac1 Rac8 21.Rc2 Ne6 22.Rec1 Bf8 23.Ba3 Bd6 24.b5 c5 25.dc5 bc5 26.Bb2 Kh7 27.f3? (better is 27.Rd1!?–/+) 27...ef3-+ 28.Nf3 Ng5 (28...c4 29.Qc3 Bb5 30.Rd2-+) 29.Ng5 (29.Rf2!? c4 30.Ng5 Qg5 31.Rf7 Kg8 32.Rg7 Kf8 33.Qd1–/+) 29...Qg5-+ 30.Rf2 Kg8 (worse is 30...Re3 31.Rf7 Kg8 32.Rg7 Kf8 33.Qc2–/+) 31.Re1 c4 32.Qd1 c3 33.Bc1 Qe5 34.g3 Bf5 35.Qa4 Bc5 36.Qf4 Qf4 37.Rf4 d4! 38.Rf5 gf5 39.Bd3 de3 40.Kg2 Rcd8 41.Bf5 e2 42.Bc2 Rd2! 43.Ba4 Re3 44.Bb3 Kf8 45.Bc4 f5 46.Kh3 Kg7 47.Kg2 Kf6 48.Bb3 Ke5 49.Kh3 f4 (49...f4 50.Bd2 cd2 51.Re2 Re2-+) 0–1. Jovanovic,Momir (2075) – Jorczik,Julian (2165), Munich–ch MK, 2006. (=1.Nf3 g6 2.c4 Bg7 3.Nc3 d6 4.e3 Nf6 5.Be2 0-0 6.0-0 e5 7.d4 Nbd7 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8 11.a4 h5)

12.Re1 a5 13.b5+=.

12.Re1 Bf5 13.a5 N8h7 (13...a6 14.Nf1+=) 14.b5 (14.a6 Qb8+/-) 14...Ng4 (14...a6 15.Qb3+=) 15.h3 (better is 15.Qc2+/-) 15...Qh4?? (better is 15...Ngf6+=) 16.hg4+- hg4 17.Nce4! Decoy: e4 17...Be4 (17...Re4 18.Ne4 Be4 19.f3 Decoy Double attack; 17...Be4 18.f3 Decoy Double attack) 18.Bg4 f5 (18...Nf6 19.Bh3+/-) 19.Bf3 (19.Ne4 Qg4 20.f3 Qh4+=) 19...Ng5 20.Be4 fe4 21.f4 (21.a6 Rf8 22.Qe2=) 21...ef3 22.Nf3 Nf3 23.Qf3 Rf8 24.Qd5 Kh7 25.Rf1 Qg3 26.Rf3 Rf3 27.Qf3 Qg5 (27...Qf3 28.gf3 g5 29.a6+/-) 28.Re1 (28.a6 ba6 29.Ra6+/- (29.Qa8?! Qe3 30.Kh2 Qh6 31.Kg3 Qg5 32.Kf2 Qd2 33.Kf3 Qd3 34.Kf4 Qf5 35.Ke3 Bh6 36.Ke2 Qc2 37.Kf1 Qc4 38.Kg1 Qe2=)) 28...Re8 29.Bc1 Re7 30.Bd2 Kg8? 31.Qb7+- Rf7? 32.Rf1 Rf1 33.Kf1 Bd4 34.Qc8 Kh7 35.Qc7 Kh6 36.Qd6 Be3 37.Be3 Qe3 38.Qf8 Kh7 39.Qf7 Kh6 40.Qf8 Kh7 41.Qf7 Twofold repetition 41...Kh6 42.a6 Qd3 43.Kg1 Qc4?? 44.Kh2 ½–½. Brion,Sophie – Espinola Martin,Maria del Cristo (2210), Wch U16 Girls, 2000. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.c4 0-0 5.Be2 d6 6.0-0 Nbd7 7.b4 e5 8.Bb2 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.a4 h5)

12.Re1 N8h7 13.a5 a6 14.b5 Bh6 15.ba6 ba6 16.Nf1 Rb8 17.Ba3 Ng4 18.h3 Ngf6 19.f4 (19.Qc2!?+=) 19...ef3= 20.Bf3 Ng5 21.e4 Nf3 22.Qf3 Rb3 (22...Bg7 23.Bc1=) 23.Reb1 Rb1 24.Rb1 (worse is 24.Nb1 Ne4 25.Bb2 Bg7-+) 24...Qe7 (24...Nd7!?+=) 25.e5+/- Nh7 26.Nd5 Qh4 (26...Qd7 27.Rb8 Bg7 28.c5+/-) 27.Qf2 Qf2 28.Kf2 de5 29.Rb8 (29.Nc7 Rd8 30.Rb8 Bg5 31.de5 Be6 32.Rd8 Bd8 33.Ne6 fe6+-) 29...Bf8 (29...ed4!? 30.Ne7 Kg7 31.Rc8 Rc8 32.Nc8 Ng5+/-) 30.Bf8 Kf8? (better is 30...Rf8 31.Ne7 Kg7 32.Rc8 Rc8 33.Nc8 ed4+-) 31.Nc7+- Rd8 32.Na6! ed4 33.Nc7 d3? 34.Nd2 Nf6 35.a6 Nd7 36.a7 1–0. Huber,Martin – Hahnewald,Peter, Boeblingen op, 1997. (=1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8 11.a4 h5)

12.Re1 N8h7 13.a5 Bf5 14.f3 Bh6 15.Nde4 Be3 16.Kh1 Ne4? (16...Be4 17.fe4 Ng5+/- (17...Ne4? 18.Ne4 Re4 19.Bf3+-)) 17.fe4+- (17.Ne4 Be4 18.fe4 Qg5+/- (18...Re4? 19.Bf3 Re6 20.a6+-)) 17...Re4?? (better is 17...Be6+-) 18.Bf3 (better is 18.Ne4 Be4 19.Bf1+-) 18...Rd4+= 19.Qb3 Rd3 (19...Bf2 20.Nd5 Rd3 21.Bc3 Be1 22.Re1–/+) 20.Rad1 Rd1 21.Qd1 Bf4 22.a6? (better is 22.Nd5 Qh4 23.Nf4 Qf4 24.Bb7+=) 22...Bg4?? (better is 22...Qh4 23.g3 Bg3–/+) 23.Bg4+/- hg4 24.ab7 Rb8 25.Nd5 (25.Qg4?! Be5=) 25...Be5 26.Re5 (26.Be5 de5 27.Re5+= (27.Qg4?! c6 28.Ne3 Rb7+=)) 26...c6?? (better is 26...de5 27.Be5 Qe8 28.Bc7 Rb7+=) 27.Ne7+- Kf8 28.Qc1 (28.Qc1 de5 29.Nc6+/-) 1–0. Kempinski,Robert – Ovseevich,Sergey, Szeged HUN, 1994. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 e4 9.Nfd2 Re8 10.Nc3 Nf8)

12.Re1 N8h7 13.a5 h4 14.f3 ef3 15.Bf3 Ng5 16.a6 Nf3 17.Qf3 Rb8 18.Rf1 Qe7 19.Nb5 Bg4 20.Qf2 ba6 21.Ra6 ½–½. Bigalke,Andre – Hofene,Dieter, Hamburg, 1999.

12.Re1 N8h7 13.Qb3 Bg4 14.Bf1 Ng5 15.d5 Qd7 16.Ne2 h4 17.Nf4 (better is 17.h3 Be2 18.Be2+=) 17...Nh5 (better is 17...h3!?=) 18.Bg7 (18.h3 Bf5 19.Nh5 gh5+/-) 18...Kg7 (18...Ng7 19.h3 Bf5 20.c5+/-) 19.c5 (19.h3 Bf5+/-) 19...Re5 (better is 19...h3!?+=) 20.cd6 cd6 21.Rac1 Qf5 22.h3+- Bf3 23.gf3 ef3? 24.Qd3 Qd3 25.Nd3 Rd5 26.e4 Nh3+/- 27.Kh2 Rd3 28.Bd3 Nf2 29.Bf1 Ng4= 30.Kh3 f2?? 31.Kg4 fe1Q 32.Re1 Nf6 33.Kh4 d5 34.e5 Rh8 35.Kg3 Nh5 36.Kf3 Rc8 37.Nb3 Rc2 38.Nd4 Ra2 39.a5+- Rd2 40.Ke3 Rb2 41.b5 Ng3 42.Bd3 Ra2 43.a6 ba6 44.ba6 Ne4 45.Rc1 Ra3 46.Rc7 Kg8 47.Nc2 Rb3 48.Rb7 Rc3 49.Kd4 Rc8 50.Be4 de4 51.Ne3 Rc1 52.Ra7 Ra1 53.Ke4 Ra4 54.Kd5 Ra1 55.Ng4 Rd1 56.Kc6 Rc1 57.Kd6 Kf8 58.Nf6 Rd1 59.Nd5 Rd2 60.Rb7 1–0. Schiefelbusch,Dirk (2070) – Boehm,Joachim (2165), Ruhrgebiet VL playoff, 2005.

12.h3 N8h7 13.Nd5 (better is 13.a5!?+=) 13...Nd5= 14.cd5 Qg5 15.Kh2 Qd5 (15...Nf6 16.Bb5 Re7 17.Qb1+=) 16.b5 (16.Rc1 c6+=) 16...Qg5 (better is 16...Nf6!?+=) 17.Qc2+= Bf5 18.Qc7 Rac8 19.Qa5 (19.Qb7 Rc2 20.Bc1 Qe7 21.Qe7 Re7+-) 19...d5 (19...Rc2 20.Bc1 Ra8 21.Bc4+=) 20.Rac1 (20.Qa7 Qd8 21.Ba3 Qc7 22.Kg1 Ra8+/-) 20...Bf8 (20...Qe7 21.Nb3+= (21.Qa7 Qb4 22.Rc8 Rc8-+)) 21.Qa7 (better is 21.b6!?+/-) 21...Bd6= 22.Kh1 Qh4 (better is 22...Bh3 23.gh3 Qf5=) 23.f4 (23.Qb7 Rc1 A) 24.Rc1? Qf2 25.Qd5 Bh3-+ (25...Qe2?! 26.Qd6 Qd2 27.Qa3–/+); B) 24.Bc1+=) 23...Bh3!–/+ 24.Nf3?? (24.gh3 Qg3 Double attack (24...Qg3 Decoy)) 24...ef3-+ 25.Bf3 Rc1 (25...Re3 26.Kg1 Qf4 27.Rc8 Bc8 28.Bd5 Qh2 29.Kf2 Qg3 30.Kg1 Ng5 31.Bf7 Kf8 32.Bb3 Rf3 33.Rf2 Qf2 34.Kh1 Qf1) 26.Bc1 Bb8 (26...Ng5 27.Kg1 Bf4 28.Bd5 Bg2 29.Rf4 Qh1 30.Kf2 Nh3 31.Ke2 Nf4 32.Kd2 Bd5 33.Qc5 Re3 34.Qc8 Kh7 35.Qh8 Kh8 36.Ke3 Qe4 37.Kd2 Qd3 38.Ke1 Qe2) 27.Qb6 Bg4 (27...Ng5!? 28.Kg1 (28.fg5?? Bg2 29.Kg1 Qh1 30.Kf2 Qf1) 28...Nf3 29.Rf3 Qe1 30.Kh2-+) 28.Kg1 Nf6 29.Qb7 Bf3 30.Rf3 Ng4 31.Qc6 (31.Qd7 Re3! 32.Be3 Qe1 33.Rf1 Qe3 34.Kh1 Bf4 35.Qc8 Kg7 36.Qg8 Kg8 37.Rb1 Nf2 38.Kg1 Nd1 39.Kf1 Qf2) 31...Qh2 (better is 31...Rd8 32.Qc2 Qh2 33.Kf1 Qh1 34.Ke2 Qg2 35.Kd1 Qf3 36.Qe2-+) 32.Kf1 Qh1 33.Ke2 Qg2 34.Kd3 (34.Ke1 Re4 35.Qc8 Kg7 36.Ba3-+) 34...Rd8 35.Qb6 Rc8 (35...Rc8 36.Qc6 Rc6 37.bc6 Qf3-+) 0–1. Stiffler,Emil (2040) – Bonstingl,Georg (2225), AUT–chT2S, 1996. (=1.Nf3 d6 2.c4 g6 3.Nc3 Bg7 4.d4 Nf6 5.e3 0-0 6.b4 Nbd7 7.Bb2 e5 8.Be2 Re8 9.0-0 e4 10.Nd2 Nf8 11.a4 h5)

13.a6 ba6 14.Qc2 Ng5 15.h4 (15.Ra5 Bh6+/-) 15...Ngh7+= 16.Nce4 Ne4 17.Ne4 Qh4 18.Nd2 Qe7 19.Bf3 Rb8 20.b5 (20.Bc6 Rd8 21.d5 Bf5+/-) 20...h4 21.Bc6+= Rf8 22.Bc3 Nf6 23.ba6 Rb6 24.Bf3 Ra6 25.Ra6+/- Ba6 26.Ra1 Bc8 27.Ra7 Bf5 28.Qb3 h3 29.Ba5 Ng4? 30.gh3+- Nh6 31.Bg2 Qg5 32.Nf3 Qh5 33.Bc7 Bh3 34.Bd6 Nf5 35.Bg3 Bh6 36.e4 Ng3 37.fg3 Qg4 38.Nh2 Qc8 39.Nf1 Be6 40.Ra4 Qc7 41.Qc3 Rb8 42.c5 Rb3 43.Ra8 Kh7 44.Qa5 Qd7 45.Qd8 Bg7 46.Qd7 Bd7 47.e5 1–0. Khurtsidze,Nino (2465) – Ohme,Melanie (2225), 1. WCh–Team women, 2007.

13.a6 b6 14.Nb3 h4 15.d5 Ng5 16.Nd4 Bd7 17.Rc1 Qc8 18.Qd2 (18.b5 h3 19.g3 Bg4+=) 18...Ng4 (18...h3 19.g3+=) 19.c5 (19.h3 Nf6+/-) 19...bc5+= 20.bc5 dc5 21.Nb3 Be5 22.h3 Nh2 23.Rfd1 Bh3! 24.Nc5 Bg2! 25.Qc2 Nhf3 26.Bf3 Bh2!! (26...Bh2 27.Kg2 Qh3 28.Kh1 Be5 29.Kg1 Nf3) 0–1. Davie,Alexander Munroe – Jamieson,Peter Michael, SCO–ch Bearsden, 1973.

13.a6 b6 14.b5 Bf5 15.Na2 Ng4 16.h3 Ngf6 17.Re1 Qd7 18.Bf1 h4 19.Nb4 g5 20.f3 ef3 21.Nf3 Ne4 22.Bd3 Nhf6 23.Qc2 Bh7 24.Nd5 Nd5 25.cd5 g4 26.Nd2 Ng5 27.Bh7 Nh7 28.hg4 Qg4 29.Qd1 Qd1 30.Rad1 Bh6 31.e4 Nf6 32.Nf3 Re4 33.Re4 Ne4 34.Nh4 Be3 35.Kh2 Bf4 36.Kg1 Nf6 37.Kf2 Nd5 38.Kf3 Re8 39.Nf5 Bg5 40.Rh1 Re6 41.Rh5 f6 42.Rh1 Ne7 43.Ne7 Re7 44.Bc1 Bc1 45.Rc1 Kf7 46.Kf4 Kg6 47.Rc3 f5 48.Rg3 Kf6 49.Rg8 Re4 50.Kf3 Rd4 51.Ra8 Rb4 52.Ra7 Rb5 53.Rc7 Ra5 54.Rc6 Ra6 55.Rd6 Ke5 56.Rd3 b5 57.Rb3 Rb6 58.Rb4 Rb8 59.Ke3 Kd5 60.Kd3 Ke5 61.Ke3 Kd5 62.Kd3 Kc5 63.Rf4 Rd8 64.Kc2 Rd5 65.g4 fg4 66.Rg4 Rh5 67.Kb2 Rh3 68.Rf4 b4 69.Rf8 ½–½. Renner,Christo (2440) – Degraeve,JM (2570), Bundesliga, 2009.

13.a6 b6 14.f4 ef3 15.Bf3 Bg4 16.h3 Bh6 17.hg4 (worse is 17.Bg4 Be3 18.Kh1 Ng4–/+) 17...Be3 18.Rf2 Ng4 19.Bg4 Qh4 20.Qf3 Ng5 21.Qe3 Re3 22.Nd5 hg4 23.Ne3 Qg3 (better is 23...g3!? 24.Rf6 Re8-+) 24.Re2+= Nh3 25.Kf1 Nf4 26.Ne4 Qh4 27.d5 f5 (27...Ne2?! 28.Nf6 Kf8 29.Ke2=) 28.Nf6 Kf7 29.Rd2? (29.Rd1 Qg3 30.Nfg4 fg4 31.Bd4-+) 29...g3-+ 30.Ke1 Qh1 31.Nf1 Ng2 32.Kd1 (32.Ke2 Nf4 33.Ke3-+) 32...Qf1 33.Kc2 Ne3 34.Kb3 Qc4 35.Ka3 Nc2 (35...Qa6 36.Kb3 Qc4 37.Ka3 a5 38.Bd4 Qb4 39.Ka2 Qd2 40.Bb2 Nc4 41.Kb3 Qb4 42.Kc2 Qb2 43.Kd3 Ne5 44.Ke3 Qf2#) 36.Rc2 Qc2 37.Rh1 Qb2! 38.Kb2 Kf6 0–1. Kozomara,Vlado – Byrne,Robert, Sarajevo, 1967. (=1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 Nbd7 7.Be2 e5 8.0-0 e4 9.Nfd2 Re8 10.Nc3 Nf8)

13.b5 Bf5 14.Nd5 Nd5+= 15.cd5 Qg5 16.Kh1 Bg4 17.Rc1 Re7 18.Bg4 hg4 19.b6 cb6 20.ab6 Nf6 21.Ba3 Qd5 22.Nc4 Re6 23.Qa4 a6 24.Rc2? Qb5-+ 25.Qb4 d5 26.Nd2 Qb4 27.Bb4 Rb6 28.Bc5 Rc6 29.Rb2 b5 30.Ra1 Rc5! 31.dc5 Nd7 32.c6 Bb2 33.Ra2 Rc8 34.Rb2 Rc6 35.g3 Ne5 36.Nb3 Nd3 37.Ra2 Rc3 0–1. Doda,Zbigniew – Westerinen,Heikki MJ (2450), Havana ol (Men) fin–B, 1966.

13.Qc2 Bf5 14.a6 b6 15.Qa4 Ng5 16.Qc6 (better is 16.b5!?+/-) 16...Bd7= 17.Qb7 Rb8 18.Qa7 Bc6 (18...Ra8 19.Qb7 Rb8 20.Qa7=) 19.Nb5+= Re7 20.Qb8?? (20.h4 Ngh7 21.Qb8 Qb8 22.a7-+) 20...Qb8-+ 21.a7 Qd8 (21...Qa8 22.Nc3-+) 22.Rfc1 Ba8 23.c5 (23.d5 h4-+) 23...dc5 24.bc5 bc5 25.Rc5 Ne6 26.Rc2 c6 27.Nc3 Rb7 28.Nce4 Ne4 29.Ne4 Qd7 30.Rac1 Ra7 31.d5? Qd5 32.Nf6 Bf6 33.Bf6 c5 34.f3 Qf5 35.Bc3 Qg5 36.Bd2 Rd7 37.Kf2 Kh7 38.Bc4 Ng7 39.Bb5 Qh4 40.Ke2 Bf3! 41.Kf3 Rd2! 42.Rd2 Qg4 43.Kf2 Qb4 44.Rdc2 Qb5 45.Rc5 Qd3 46.R1c2 Ne6 47.R2c3 Qd8 48.e4 Nc5 49.Ke1 0–1. Wannebroucq,Sebastien (2145) – Nataf,Igor Alexandre (2555), FRA Cup semifinal, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.d4 Nbd7 7.Be2 e5 8.0-0 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.a4 h5 12.a5 N8h7)

13.a5 a6 14.ba6 Ra6 15.Qc2 Bf5 16.c5 Ra8 17.cd6 cd6 18.Nc4 Rc8 (18...h3 19.g3+=) 19.Qb3 Be6 20.d5 Nd5 (20...Bg4 21.Bg4 Ng4 22.Qb4+/-) 21.Ne4 Nf6 22.Nf6 (22.Bf6 Bf6 23.Rac1 Bc4 24.Rc4 Rc4 25.Qc4 Re5+/-) 22...Bf6 23.Bf6 Qf6 24.Qb4 Bc4 25.Bc4 Re5 26.Be2 Rc7 (26...Rcc5 27.Bf3+/-) 27.Bf3 Rec5 28.h3 Rc4 29.Qb1 Rc2 30.Ra2 Ra2 31.Qa2 Qe5 32.Qa4 g5 33.a6 ba6 34.Qa6 Qe7 35.Rd1 Rd7 36.Rd5 Ne6 37.Qd3 Rd8 38.Bd1 Nc5 39.Qf5 f6 40.Bc2 Ne6 41.Bb3 Kg7 42.Qe4 Rc8 43.Rb5 Rc1 44.Kh2 d5 45.Rd5 Rc7 46.Ba4+- Nf8 47.Qd4 Ng6? 48.Rg5 (48...Qe6 49.Bb5+-) 1–0. Mehlhorn,U – Puetz,P, M–356–D, 2001.

13.a5 h3 14.Qc2+=.

13.a5 h3 14.g3 a6 15.ba6 (15.Qc2 Bf5=+) 15...ba6=+ 16.Nd5 (16.Rb1 Bf5=+) 16...Nd5 (16...N8h7 17.Qb3=+) 17.cd5 Nh7 (17...Bb7 18.Qb3 Rb8 19.Rab1=+) 18.Qc2 (18.Qb3 Nf6=+) 18...Nf6 19.Rfc1 (19.Rab1 Bb7–/+) 19...Nd5–/+ 20.Qc6 (20.Rab1 Bd7–/+) 20...Rb8 21.Ba3 (21.Rab1!? Bb7 22.Qc2–/+) 21...Bb7-+ 22.Qa4 Qg5?? (better 22...c5 23.Bb2 Bc8-+) 23.Rab1= Ba8 (23...Red8 24.Rb3 Ba8 25.Ba6 Rb3 26.Qb3 Bd4 27.Ne4=) 24.Rb3 Rb3?? (better 24...Red8=) 25.Qe8+- Kh7 26.Nb3 (26.Qa8 Re3 (26...Ra3?! 27.Ne4 Qf5 28.Qe8=) 27.Ne4 Re4-+) 26...Ne3 (26...c5 27.Qa8 cd4 28.Nd4 Bd4 29.ed4+-) 27.Qa8 d5 (27...Nd5 28.Bc4 Nf6 29.Qc8+-) 28.Qc8 Nf5 (28...Nc4 29.Bc4 dc4 30.Qh3 Bh6 31.Rc4+-) 29.Qc7 e3 30.f4 Qf6 31.Rc6 Nd4 32.Rf6 Ne2 33.Kf1 Ng3 34.Ke1 Bf6 (34...Ne4 35.Rf7 Nf6 36.Rg7 Kh6 37.Qf7 Kh5 38.Qg6 Kh4 39.Qg5) 35.Qf7 (35.Qf7 Kh6 36.Qf6 Kh7 37.Bb2 d4 38.Bd4 Kh6 39.Qh8) 1–0. Paravyan,David – Yuffa,Daniil, Russian Blitz Championship – Open, 2016. (=1.e3 g6 2.Nf3 Bg7 3.Be2 e5 4.0-0 d6 5.d4 Nd7 6.b4 Ngf6 7.Bb2 e4 8.Nfd2 0-0 9.c4 Re8 10.Nc3 Nf8 11.a4 h5)

13.h3 c5+=.

12.Rfc1 N8h7 13.a4 Ng5 14.a5 h4 15.a6 b6 16.d5 Bf5 17.Nb5 Nd7 (17...h3!?+=) 18.Bg7 Kg7 19.Qb2 Ne5 20.c5 bc5 21.bc5 Qf6 22.Qc3 Kh7?? (better 22...Rec8+/-) 23.Nc7+- Ngf3 (23...dc5 24.Ne8 Re8 25.Qc5+-) 24.Bf3 (better 24.gf3 Qg5 25.Kh1 ef3+-) 24...ef3 25.Nf3 (25.e4 Qg5 26.g3 Bg4 27.Na8 hg3 28.hg3 Qh5-+) 25...Nf3 26.gf3 Re5 (26...Qg5 27.Kh1 Re4 28.Qd2+- (28.Na8 Qh5 29.Rcb1 Qf3 30.Kg1 Bh3 31.Qg7 Kg7 32.cd6 Qg2; 28.cd6 Qh5 29.Ne6 Qf3 30.Kg1 fe6-+)) 27.f4 (27.Na8 Bh3 28.Qe5 de5 29.Kh1 Qf3 30.Kg1 Qg2) 27...Bh3 28.Kh1 (28.f3 Rc8 29.cd6 Rf5 30.Qf6 Rf6+-) 28...Qf5 29.f3 (29.cd6?? Qg4 30.Rg1 Qf3 31.Rg2 Qg2) 29...Rc8 30.cd6 Ree8 31.d7 Rc7 (31...Qd7 32.Ne8 Qe8+-) 32.de8Q (32.de8R?! Rc3 33.Rc3 Qd5=; 32.Qc7 Qd5 33.Qc6 Qd2+-; 32.de8B?? Rc3 33.Rc3 Qd5-+; worse 32.de8N Rc3 33.Rc3 Bg4 34.fg4 Qe4 35.Kg1 Qe8+-) 32...Rc3 33.Rc3 Qd5 34.Qe4 Qd2 35.Qc2 Qd5 36.e4 Qd6 (36...Qd4 37.f5 g5 38.Rg1+-) 37.Qc1 (37.f5 gf5 38.Rc7 Qe6+-) 37...Qd4 38.Qe3 Qb4 (38...Qf6 39.e5 Qe7 40.Qc5+-) 39.Rg1 Qb2 (39...Bd7 40.Rc7 Qd6 41.Qa7+-) 40.f5 (40.f5 Bg2 41.Rg2 Qg2 42.Kg2 h3 43.Kh3 gf5 44.Qg5 fe4 45.Rc6 f6 46.Rc7 Kh8 47.Qg7) 1-0. Jacobsen,Mikkel Manosri (2315) - Lilja,R (2120), Hillerod DEN, 2020. (=1.Nf3 g6 2.e3 Bg7 3.Be2 d6 4.d4 Nd7 5.c4 Ngf6 6.Nc3 0-0 7.0-0 e5 8.b4 e4 9.Nd2 Re8 10.Bb2 Nf8)

12.d5 N8d7 13.Qc2+=.

12.d5 N8h7 13.c5 (13.Rfb1 a5+=) 13...Bg4 (13...dc5 14.bc5 Nd5 15.Qd5 (15.Nd5?! Bb2 16.Rad1 Bg7=) 15...Qd5 16.Nd5 Bb2 17.Nc7 Ba1 18.Ne8+/- (18.Na8?! Be5=)) 14.cd6 (14.Bb5 Bd7 15.Bc4 h4+/-) 14...cd6 (14...Qd6 15.Nc4 Qe7 16.Rad1+=) 15.Bg4+/- hg4 16.Rac1 Qd7 (16...Ng5 17.Nb5 Re7 18.a4+/-) 17.Rfd1 (17.Rc2 Ng5+/-) 17...Ng5 18.Ne2 (18.Rc2 Rac8+=) 18...Nf3 (18...a5 19.Nc4 a4 20.Qa3+/-) 19.Kh1 (19.gf3 gf3 20.Nf4 g5+/-) 19...Ne5+= 20.Be5 Re5 21.Ng3 Rae8 22.Rc4 Rd5 23.Nde4 Rd1 24.Qd1 Ne4 25.Re4 Rc8 26.h3 gh3–/+ 27.Rh4 hg2 28.Kg2 Qc6 29.Kh3 Qd7 30.Kg2 Qe6 31.Re4 Qa2 32.Qd6–/+ a6 33.Qd7= Rc2 34.Rf4 Be5?? 35.Qe8+- Kg7 36.Qe5 Kg8 37.Qe8 Kg7 38.Ne4 Rc1 39.Qe5 Kf8 1–0. Cafferty,B – Kwiatkowski,F, West Bromwich, 2003.

12.Rae1 Bh6 13.Nd1 N8h7 14.d5 Bg7 15.f3 ef3 16.Bf3 a5 17.a3 ab4 18.ab4 Nd7 19.Bg7 Kg7 20.Nf2 Ne5 21.Nd3 Nd3 22.Qd3 Nf6 23.Qd4 Kg8 24.c5 Nd7 25.Be2 Ne5 26.Bb5 (26.cd6 cd6 27.Ra1 Ra1 28.Ra1 Bg4+=) 26...Rf8 (26...c6 27.Bc4 dc5 28.bc5 Ra4+/-) 27.Nf3 Nf3 28.Rf3 (28.gf3?! dc5 29.bc5 Ra5=) 28...Bd7 29.c6 (29.Bd7 Qd7 30.Rf6 dc5 31.bc5 Ra4+/-) 29...bc6+= 30.dc6 Bf5 (30...Qg5!? 31.Qd3 Ra2=) 31.Bc4+/- Qe7 32.Bd5 Rae8 33.Ref1 Be6 34.e4 Bd5 35.ed5 (worse is 35.Qd5 Qe4 36.Qb3 Re7+=) 35...Qe5 36.Qd2 Re7 37.b5 Rb8 38.Rb3 Rb6 39.h3 Kg7 40.Rc1 h4 41.Rcb1 Re8 ½–½. Nikolov,Momchil (2525) – Kozhuharov,Spas (2465), Bankya BUL, 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.e3 e5 7.Be2 Nbd7 8.Nc3 Re8 9.0-0 e4 10.Nd2 Nf8 11.Qb3 h5)

12.Rae1 Bh6 13.d5 Bf5 14.Nb5 N8d7 15.c5 dc5 (15...a6 16.Nd4 dc5 17.Nf5 gf5 18.bc5 Nc5 19.Qc3=) 16.d6 cd6 17.Nd6 Be6 (17...Re6 18.Nf5 gf5 19.Bc4+/-) 18.Bc4 Bc4 19.Qc4 e4 becomes the focus of attention 19...Re6 20.Nb7 (worse is 20.bc5 Nc5 21.Qc5 Qd6 22.Qd6 Rd6–/+; 20.N2e4?! cb4 21.Rd1 Ne4 22.Ne4 Qe7=) 20...Qb8 21.Nc5 Nc5 22.Qc5 (22.Bf6!? Nd3 23.Ne4 Ne1 24.Re1+=) 22...Bf8= 23.Qc2 Bb4 24.Bf6 Bd2 25.Rb1 Qc8 26.Qb2 Rc6 27.Qd2 Rf6 28.Qd4 Re6 29.Rfc1 (29.Rfd1 Qc2+=) 29...Qd8= 30.Qa4 Qd3 ½–½. Tsyhanchuk,Stanislav (2375) – Nozdrachev,Leonid (2405), Moscow RUS, Kolomenskaya Open, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qb3 h5)

12.h3 N8h7 13.Rfd1 h4 14.d5 Ng5 15.Kf1 Bf5 16.c5 a6 17.a4 Qd7 18.Ke1 (better is 18.Nc4 Qe7 19.Na5 dc5 20.bc5 Qc5 21.Nb7+=) 18...Bh3 (better is 18...Qe7=) 19.gh3+/- Nh3 20.Nf1 (better is 20.Qc2!?+-) 20...Qf5+= 21.Kd2 (21.f3!?+=) 21...Qf2 22.Kc1 Bh6 23.Kb1 Ng1 (23...Be3 24.Ne3 Qe3 25.Rf1+=) 24.Qc2 (better is 24.Bc4!?=) 24...dc5+= 25.bc5 Be3 26.Ne3 Qe3 27.Ka2 Ne2 28.Ne2 Ng4 29.Qc3? (better is 29.d6+=) 29...Qc3-+ 30.Bc3 Nf2 31.Rf1 Nd3 (better is 31...e3 32.Rab1 Rab8-+) 32.Rh1+= Ne5 (better is 32...f6+=) 33.Rh4+/- g5 34.Re4 Nd3 35.Re8 Re8 36.Nd4 (36.Ng3 Nc5 37.Rh1+/-) 36...Nc5+= 37.Ka3 Kh7 38.Re1 Re1 39.Be1 Ne4 40.Kb4 Kg6 41.Kc4 Kf6 42.Ba5 b6 43.Be1 Ke5 (43...Nd6!? 44.Kd3 Ke5 45.Nc6 Kd5 46.Nb4 Ke6 47.Na6 c5–/+) 44.Nc6= Kf4 45.Nd8 (better is 45.Nb4!? a5 46.Na6 Nd6 47.Kd4=) 45...Nd6–/+ 46.Kd4 g4 47.Nc6 g3 48.Bd2 Kf3 49.Ne5 (49.Kd3 g2 50.Be3 b5 51.ab5 ab5 52.Nd4 Kg3-+) 49...Ke2-+ 50.Bf4 g2 51.Bh2 Kf2?? (better is 51...b5 52.ab5 ab5–/+) 52.Ng4= Kf3 53.Ne5 Kf2 54.Ng4 Kf3 ½–½. Matuszewski,Maciej – Kalhorn,Marcin, 59th YMCA Spring D, 2009. (=1.d4 d6 2.c4 e5 3.e3 Nd7 4.Nc3 Ngf6 5.Nf3 g6 6.Be2 Bg7 7.0-0 0-0 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8 11.Qb3 h5)

13.Nd5 Nd5 14.cd5 Qg5 15.f3 ef3 16.Bf3 (< 16.Rf3 Bg4 17.Rg3 Nf6=+) 16...Nf6 17.Re2 Bg4 18.e4 Bd7 19.Nc4 Ng4 20.h3 Bb5 21.a4+/- Bd7 22.b5 Nh6 23.Kh1 Re7 24.Qc3 Rae8 25.Qe1 h4 26.Qd1 Rf8 27.Bc1 Qg3 28.Re3 Ree8 29.Rd3+- Bh3 30.gh3 Qh3 31.Kg1 Bd4 32.Rd4 Qg3 33.Bg2 h3 34.Qf3 Qg2 35.Qg2 hg2 36.Bh6 gf1Q 37.Kf1 f5 38.Bf8 Kf8 39.ef5 gf5 40.Na5 b6 41.Nc6 Kg7 42.Na7 Kf6 43.Kf2 Rh8 44.Nc6 Rh3 45.Nb4 Rc3 46.Nd3 Kg5 47.Ke2 Rc2 48.Ke3 Kf6 49.Nb4 Rc1 50.Kd2 Ra1 51.Nd3 Rh1 52.Rc4 Rh7 53.Kc3 Rg7 54.Rh4 Rg4 55.Rh7 Ra4 56.Rc7 f4 57.Rc6 Kf5 58.Rb6 Ke4 59.Nf4! Kf4 60.Rd6 Ke5 61.Rd7 Ra8 62.b6 Rc8 63.Kb4 Kd4 64.b7 Rc1 65.Kb5 Rb1 66.Kc6 Rc1 67.Kd6 Rb1 68.Kc7 (68.Kc7 Rc1 69.Kd8+-) 1–0. Granda Zuniga,JE (2635) – Alcazar Jimenez,VM (2375), Madrid ESP, Liga Madrilena, 2012.

14.Bf3 Ng5 15.Bd1 Bf5 16.Bc2 Nge4 17.Nde4 Ne4 18.Ne4 Be4 19.Rf4 Bc2 20.Qc2 f5 21.e4 c6 22.Rff1 Re4 23.Re4 fe4 24.Qe4 Qe8 25.Qd3 Kh7 26.Bc1 d5 27.Bf4 dc4–/+ 28.Qc3 Qe2 29.Be5 Rf8 30.Rf8 Bf8 31.h3 Bh6 32.Kh2 Be3 33.Qa3?? Qe1 (33...Qe1 34.Qe3 Qe3-+) 0–1. Castro Rojas,Oscar Humberto (2380) – Wirthensohn,Heinz (2385), Haifa ol (Men), 1976.

14.Bf3 Ng5 15.e4 c5 16.dc5 dc5 17.Nd5 cb4 (17...Nf3?? A) 18.Rf3?! Nd5 19.cd5 cb4+=; B) 18.gf3?? Nd5 19.cd5 Qg5 20.Kf2 Qd2 21.Re2 Bd4 22.Bd4 Qd4 23.Kg2 cb4-+; C) 18.Nf3?! cb4 19.Qb4 Nd5 (19...Ne4 20.Bg7 Kg7 21.Qb2 f6 22.Re4 Re4 23.Ng5+-) 20.ed5 Re1 21.Re1 Bb2 22.Qb2 b6+/-; D) 18.Qf3 Bg4 19.Qf4 (19.Bf6?! Bf3 20.Bd8 Rad8 21.Nf3 cb4+-; 19.Nf6?! Bf6 20.Qf6 Qf6 21.Bf6 cb4+-) 19...cb4 20.Bf6+-) 18.Qb4 Nd5 19.ed5 Re1 20.Re1 Bb2 (20...Bf5 21.Bg7 Kg7 22.h4 Nf3 23.Nf3=) 21.Qb2 b6 (21...Bf5 22.Qb7 Qb6 23.Qb6 ab6 24.Bh5 Ra2 25.Nf3+/-) 22.Bd1 (22.d6!? Nf3 23.Nf3+/-) 22...Bf5+= 23.Qe5 f6 24.Qg3 Kf8? (better 24...Qf8+=) 25.Ba4+- b5 26.Bb5 Qb6 27.Qf2 Nf7 28.Nf3 Qf2 29.Kf2 Rc8 (29...Nd6 30.Nd4 a6 31.Nf5 gf5 32.Bc6+-) 30.Nd4 Ne5 31.Kg3 (31.Kg1 h4+-) 31...Bd3? (better 31...a6 32.Bc6 Nc6 33.dc6 Bd3+=) 32.d6+- Kf7 (32...Rb8+-) 33.d7 Rd8 (33...h4 34.Kf2 Ra8 35.Re5 fe5 36.Nc6+-) 34.Re5! fe5 (34...Rd7 35.Rd5 Rc7 36.c5+-) 35.Nc6 (35.Nc6 Rd7 36.Ne5 Ke7 37.Bd7+-) 1-0. Srihari,L R (2270) - Radovanovic,Nik (2400), Orbis, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.d4 Nbd7 8.Nc3 Re8 9.0-0 e4 10.Nd2 Nf8)

14.Bf3 Ng5 15.e4 Ng4 16.Nd5= c6 17.Nf4 a5 18.h3 Nf6 19.b5 a4 20.Qd3 Nd7 21.Bh5 cb5 22.cb5 Nb6 23.Qg3 Ra5 24.Bc3+/- Rb5 25.Be2 Bd7 26.Bb5 Bb5 27.Rf2 Nc4 28.Nc4 Bc4 29.e5 de5 30.de5 Ne6 31.Ne6 Re6 32.Qf4 Qc7+/- 33.Rd1 b5 34.a3 Be5 35.Be5 Re5 36.Rd8 Qd8 37.Qe5 Qd5 38.Qd5+- Bd5 39.Rb2 Bc4 40.Kf2+- g5 41.Rd2 Kg7+/- 42.Rd6 f6 43.g3 Kg6 44.h4 Kh5 45.Rd4 Bb3 46.Kf3 Be6 47.Rd8 Bg4 48.Ke3+- Be6 49.Rh8 Kg6 50.Ke4 Bg4 51.Rg8 Kf7 52.Rb8 gh4 53.gh4 Be2 54.Ke3 Bc4 55.Rc8 Kg6 56.Rc5 Kh6 57.Kf4 Kg6 58.h5 Kh6 59.Kg4 Be2 60.Kh4 Bc4 61.Rc7 Ba2 62.Rc6 Kg7 63.Rc1 Bf7? 64.Rc7 Kg8 65.h6 Bc4 66.h7 Kh8 67.Kh5 (67.Kh5 Bd3 68.Kh6+-) 1–0. Mamedyarov,Shakhriyaz (2670) – Stellwagen,Daniel (2560), WJun Instanbul TUR, 2005.

14.Bf3 Ng5 15.e4 Ng4 16.Nd5 Ne6 17.Qd3 c6 18.Bg4 hg4 19.Nf4 c5 20.Ne6 Be6 21.a3 Qb6 22.dc5 dc5 23.Bg7 Kg7 24.Qc3 Kg8 25.Kh1 (25.b5 a6 26.Rb1 Qc7+=) 25...Rad8 26.Nb3 Qa6 (26...cb4 27.ab4 Qd6 28.Re3+=) 27.Nc5+/- Qc4 28.Qg3 Rd2 (28...b6 29.Rc1 Qd4 30.Ne6 Re6 31.Qg4 Re4 32.Qf3+=) 29.Nb7 Rd3 30.Qf2 Qc6 31.Na5 (31.Qa7!? Rd7 32.Na5 Ra7 33.Nc6 Ra3 34.Rd1+/-) 31...Qb6+/- 32.Ra1 (32.Qb2 g3+/-) 32...Red8 (32...Qf2!? 33.Rf2 Rc8+=) 33.Qf6+/- Qd4 34.Nc6 Qf6 35.Rf6 R8d6 36.Ne5 Ra3 37.Raf1 Rd4 38.Nf7 Bc4 39.Rg6 Kh7?? 40.Rg4?? Bf1–/+ 41.Ng5 Kh6 42.Nf7 Kh5 43.Rg5 Kh4 44.g3 Kh3 45.Rh5 Kg4 46.Rf5 Be2 47.Kg2 Bf3 48.Rf3 Rf3?? 49.Ne5+/- Kh5 50.Kf3 Rb4 51.Nc6 Rb7 52.e5 Rc7 53.Nd4 a5 54.Ke4 a4 55.Kd5 Rd7–/+ 56.Kc4 a3 57.Nc2 a2 58.Kb3 Rd2 59.Na1 Rh2 60.g4 Kg6 61.Ka3 Kf7 62.g5 Ke6 63.g6–/+ Ke5 64.g7 Rg2 (64...Rg2 65.g8Q Rg8 66.Ka2 Kd4 67.Nb3 Kc4 68.Nd2 Kc3 69.Ne4 Kb4–/+) 0–1. Menkinoski,R (2365) – Arat,Uf (2085), Karposh Open, 2012. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Be2 Nbd7 7.c4 Re8 8.0-0 e5 9.Nc3 e4 10.Nd2 Nf8 11.Qb3 h5)

14.Bf3 Bh6 15.Nce4 Ng4 16.h3 Bf5 (16...Ngf6 17.d5+-) 17.hg4 hg4 18.Ng3 gf3 19.Nf5 gf5 20.Rf3 f4 21.e4 Qh4 (21...Ng5 22.Rf2+-) 22.Rff1 (22.Ref1 Qg5+-) 22...Re6 23.Nf3 White prepares e5 23...Qh5 24.e5 Rae8 (24...Bg7 25.ed6 cd6 26.d5 Re1 27.Re1+-) 25.d5+- Rg6 26.ed6 Re1 27.Re1 cd6 28.Re8 Nf8 29.Qd3 Qg4 30.Qe2 Qf5 31.Bc3 Kh7? (31...Qb1!? 32.Be1 b6+-) 32.Re7 (better 32.Nh4 f3 33.Nf5 fe2 34.Nh6 Rh6 35.Rf8+-) 32...Nd7? (32...Bg7 33.Bg7 Rg7 34.Rb7 Qb1 35.Kf2 Kg8+-) 33.Bd2 (better 33.Nh4!? Qb1 34.Kh2 Ne5 35.Be5 de5 36.Ng6 Qg6 37.Rb7 e4 38.Ra7 Bg7+-) 33...Kg8?? (33...Ne5!? 34.Kf2 Ng4 35.Ke1 Ne3 36.Be3 fe3=) 34.Re8 (better 34.Nh4 Qb1 35.Qe1 Qe1 36.Be1+-) 34...Kh7 35.Re7 (35.Nh4 Qb1 36.Qf1 Qf1 37.Kf1 Rg5+-) 35...Bf8 (35...Kg8 36.Nh4 Qb1 37.Qe1 Qe1 38.Be1 Ne5 39.Ng6 fg6+-) 36.Qe4 (36.Re4 Rg4+-) 36...Qe4 (36...Qg4!? 37.Rf7 Kg8+-) 37.Re4+- Nb6 (37...Ne5 38.Kf1+-) 38.Rf4 Bh6 (better 38...Kg8+-) 39.Rf7 Kg8 (39...Rg7 40.Rf6 Rg6 41.Rg6 Kg6 42.Bh6 Kh6 43.Nd2+-) 40.Rb7 Nc4 41.Bh6 Rh6 42.Ra7 Rh5 43.Rc7 Ne3 44.b5 Nd5 45.Rd7 (45.Ra7 Nb6 46.a4 Na4 47.Ra4 Rb5+-) 45...Nb6 46.Rd6 (46.Rb7!? Rb5 47.a4 Rb1 48.Kh2 Ra1 49.Rb6 Ra4 50.Rd6 Kf7+-) 46...Rb5 47.Rg6 (47.Rd8 Kf7+-) 47...Kf7 48.Rh6 Nc4 49.a4 (49.Rh4 Na3 50.Ra4 Nc2+-) 49...Rb1? (better 49...Ra5+-) 50.Kh2+- Ra1 51.Rh4 (better 51.Ra6+-) 51...Nb6 52.Rh8 Ra4 53.Rb8 Nd5 54.Rb5 Nf6 55.Rf5 Ke6 56.Re5 Kf7 57.Rb5 Ra2 58.Kh3 Ne4 59.Ng5 Ng5 60.Rg5 Ra4 61.g3 Kf6 62.Rg8 Kf7 63.Rg5 Kf6 64.Rg8 Kf7 ½–½. Tsyhanchuk,Stanislav (2360) – Harutjunyan,Gevorg (2435), European Blitz, 2015. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nbd7 8.d4 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qb3 h5)

12.a4 Bf5 13.a5 N8h7 14.Qb3 Ng4 15.Bg4 hg4 16.b6 c6 17.a6 ab6 18.ab7 Rb8 19.Ra7 Re7 20.Qa4 Qc7 21.Ba3 Ng5 22.Rb1 Rd7 23.Ra8 c5 24.Qa7 Rdd8 25.Nd5 1–0. Franke – Hoerstmann, 1991.

12.a4 Bf5 13.a5 N8h7 14.b6 ab6 (14...cb6!? 15.ab6 Qb6=) 15.ab6+= Ra1 16.Qa1 c6 (16...c5 17.Qa7 cd4 18.ed4+=) 17.Qa7+- Qe7 (17...Qd7 18.Nb3+-) 18.d5 (18.Nb3 h4+-) 18...c5 (18...cd5 19.cd5 (19.Nd5?! Nd5 20.Bg7 Ne3 21.fe3 Kg7+=) 19...Rc8 20.Rc1+-) 19.Nb5 Bc8 (better 19...Rf8+-) 20.Qb8?? (better 20.Nb3+-) 20...Bg4–/+ 21.Qc7 Be2 22.Re1 Bg4 (better 22...Nd5 23.Qe7 Re7 (23...Ne7?! 24.Bg7 Kg7 25.Nd6=+) 24.Re2 Nb6 (24...Bb2?! 25.cd5 Bg7 26.Nc4=) 25.Bg7 Kg7 26.Nd6 Rd7 27.N6e4 Nc4-+) 23.Nd6= Qc7 24.bc7 Ra8 25.Ra1 Ra1 26.Ba1 Ne8? (better 26...Nd5 27.Bg7 Nc7+-) 27.Ne8+- Ba1 28.h3 (28.Ne4 Kf8 29.N8d6 Ke7+-) 28...Bd7 29.Ne4 Kf8 (29...b6 30.N8d6 f5 31.Nd2+-) 30.N8d6 Ke7 31.c8Q Bc8 32.Nc8 Kd7 33.Nb6 Kc7 34.Na4 (34.Na8 Kb8 35.d6 Be5+-) 34...b6 35.d6 Kc6 36.d7! Kd7 37.Nb6 Kc6 38.Na4 Nf6 (38...Nf8 39.Nec5 (39.Nac5?! f5+-) 39...Bg7 40.g4+-) 39.Nac5 (39.Nec5 Be5+-) 39...Ne4 40.Ne4 Be5 (40...Bb2 41.Ng5+-) 41.Kf1 (41.f4 Bb2 42.g4 Ba1+-) 41...f5 42.Nd2 Kc5 43.Ke2 g5 (43...Bc3 44.Nf3 Kc4 45.Nh4+-) 44.Nf3 Bf6 45.Kd3 g4 (45...Kd6+-) 46.Nd4 Bh4 47.f3 (worse 47.Nf5 Bf2 48.Ng7 gh3 49.gh3 h4+-) 47...gh3 48.gh3 f4 (48...Bf6 49.f4+-) 49.Ne6 (49.Ne6 Kc6 50.Nf4+-) 1–0. Li,Zuhao Luke (2310) – Dale,Ari (2310), AUS Ch, 2016.

12.a4 h4 13.a5 h3 14.g3 N8h7 15.Qc2 Ng5 16.a6 ba6 17.ba6 Bf5 18.Ra2 Qc8 19.Rc1 Bg4 20.Bf1 c6 21.Ra4 Bf5 22.Ra2 Rb8 23.Ba3 Qd7 24.Rb1 Ng4 25.Rb8 Rb8 26.Rb2 Rb2 27.Qb2 c5 28.Qb8 Kh7 29.Nb5 cd4 30.Qd6 de3 31.fe3 Nf3 32.Nf3 ef3 33.Qd7 f2 0–1. Melich – Kochiev, Praha 1989.

12.a4 N8h7 13.a5 Bf5 (13...h4 14.f3 h3 15.fe4+=) 14.a6+/- b6 15.Na2 Bh6 (15...Rc8 16.Nb4 Bd7 17.Qb3+/-) 16.Nb4 Ng4 17.h3 Nf2 18.Rf2 (18.Kf2!? Qh4 19.Kg1 Be3 20.Kh2 Bh3 21.g3+- (21.gh3 Ng5 22.Bg4 hg4 23.Qg4 Qg4 24.hg4 Bd2-+)) 18...Be3+= 19.Ra3 (19.Nc2 Bf2 20.Kf2 Qh4 21.Kg1 e3=) 19...Bf2 20.Kf2 e3 21.Re3+/- Re3 22.Ke3 Qh4 23.Nf3 Re8 24.Kd2 Qf2 25.Nd5 Qg2 26.Qf1 Qg3 27.h4 Bh3 28.Qe1 Qg2? 29.Ne3+- Re3 30.Ke3 Bg4 31.Qf2 Qh1 32.Ng5 Ng5 33.hg5 Bf5 34.Qf3 Qg1 35.Kd2 Qg5 36.Qe3 Qf6 37.Bc3 d5 38.cd5+- Qd6 39.Qe5 Qd8 40.Bb4 Qg5 41.Qe3 Qd8 42.Bf3 Bd7 43.Be7 Qe8+/- 44.d6 cd6 45.Bd6 Qc8? 46.Bd5 Bb5 47.Qe7 Qf5+= 48.Qf8 Kh7 49.Qf7 Qf7 50.Bf7 Ba6 51.Bb8 Bb7 52.Ba7+- h4 53.Bb6 g5 54.Be6 Kg6 55.Bg4 Bg2 56.Bc7 Be4 57.Ke3 Bd5 58.Be5 Kh6 59.Kf2 Kg6 60.Kg1 Kh6 61.Kh2 Kg6 62.Bd6 Kf6 63.Bd7 Bc4 64.Bc7 Bd5 65.Bd8 Kg6 66.Kh3 Bc4 67.Kg2 Bd5 68.Kf2 Kh5 69.Ke3 Kg6 70.Bg4 Kh6 71.Bf3 Be6 72.d5 Bd7 73.d6 g4 74.Bd5 h3 75.Kf2 Kg6 76.Bh4 Kf5 77.Bg3 Be8 78.Ke3 Kf6? 79.Kd4 Bd7 80.Kc5 Kf5 81.Kb6 Kg5 82.Kc7 Bf5 83.d7 Bd7 84.Kd7 Kf5 85.Ke7 Kg5 86.Ke6 Kg6 87.Ke5 Kg5 88.Be4 Kh5 89.Kf6 h2 90.Bg6 (90.Bg6 Kh6 91.Bf4) 1–0. Labahn,Wolfgang (2225) – Nickl,Klaus (2220), Eger, 1993.

12.Qc2 Bf5 13.a4 N8h7 14.a5 Ng5 15.Rfc1 ½–½. Melich,Jindrich (2160) – Cedikova,Katerina (2080), CZE–chT2, 1999.

12.Qc2 Bf5 13.Rfd1 Ne6 14.Nb3 Ng5 15.a4 Ng4 16.a5 Nf3 17.Bf3 (17.gf3? ef3 18.Qf5 gf5 19.Bf3 Qg5 20.Bg4 f4-+ (20...fg4?! 21.a6-+; 20...hg4?! 21.a6-+)) 17...ef3 18.e4 Qh4 19.gf3?? (better is 19.h3 fg2 20.Rd3 (20.ef5?? Qh3 21.fg6 Qh2) 20...Re4 21.Ne4 Be4 22.Rad1-+) 19...Qh2 20.Kf1 Ne3!! (20...Ne3 21.Ke2 Nc2-+) 0–1. Thieme,Hans (1925) – Pape,Manfred (2065), Sachsen Anhalt Seniors op, 2006. (=1.Nf3 Nf6 2.d4 g6 3.b4 Bg7 4.e3 0-0 5.c4 d6 6.Be2 Re8 7.0-0 e5 8.Nc3 Nbd7 9.Bb2 e4 10.Nd2 Nf8)

12.a3 c6+=.

12.a4 c6 13.a5 d5 14.a6 (14.Rfc1 Ne6 15.Qd1 Nc7+=) 14...b6 15.b5 c5 16.Nb3 dc4 17.Bc4 N8d7 (17...Qc7 18.Ne2+=) 18.Rfd1 (18.Rad1 Qe7+=) 18...Qe7 (18...Qc7 19.d5+=) 19.dc5 bc5 20.Na5 Ne5 (20...Nb6 21.Na4+=) 21.Nc6 (21.Nd5 Nd5 22.Bd5 Rac8+/-) 21...Nc6+= 22.bc6 (22.bc6 Bg4 23.Rdc1+=). Jung,Michael – Rehder,Joerg, Telechess CBM, 2003.

12.a4 Qd7 13.h3 c5 14.bc5 dc5 15.dc5+/-.

12.a4 Qd7 13.h3 g5 14.Nd5+=.

12.a4 Ne6 13.b5 (13.Qd1 c5 14.g4 cb4+=) 13...Ng5 (13...Nd4 14.ed4 e3 15.Qd1 ed2 16.Qd2=) 14.Nb3 (14.a5 a6+=) 14...Qd7 (14...Nf3 15.Kh1=) 15.d5 (15.a5 a6+=) 15...Nf3= 16.Kh1 Ng4 17.gf3 ef3 18.Bd3 Bd3 19.Qd3 Qe7 20.e4?? (20.Nd2 Qh4 21.Nf3 Nf2 22.Kg1 Nd3 23.Nh4 Nb2 24.Nd1-+) 20…Qh4 (20...Qh4 21.h3 Qh3 22.Kg1 Qg2; 20...Qe5 21.Qf3 Qh2) 0-1. Arifars17 (2680) - H1ypnotized (2720), Rated Bullet game, lichess.org, 2021. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 d6 6.c4 Nbd7 7.Nc3 e5 8.b4 e4 9.Nd2 Re8 10.Bb2 Nf8)

12.a4 Ne6 13.d5 Ng5 (13...Nf8 14.a5+=) 14.Qb3 (14.h4 Nf3 15.gf3 ef3=) 14...h5 (14...h6 15.h4 Ngh7 16.a5=) 15.a5+= Ng4 (15...a6 16.Ra2+=) 16.a6+/- ba6 (16...b6 17.Nb5+/-) 17.Ra6 Be5 (17...Bc8 18.Ra5+/-) 18.Bg4+- hg4 19.Ne2 Bh2? (better is 19...Bc8 20.Ra5 Bb2 21.Qb2 a6+-) 20.Kh2 Nf3 21.Nf3 gf3 22.Ng3 Qh4 23.Kg1 fg2 24.Rb1 Bg4 25.f3 ef3 26.Qc3 Re5 27.Qe1 Rh5! 28.Kf2 g1Q! 29.Qg1 Qh2 30.Qh2 Rh2 31.Kg1 Rg2 32.Kh1 Rg3 33.Bd4 Bf5 34.Rb2 Rh3 35.Kg1 Be4 36.Rf2 g5 37.Raa2 Kh7 38.Rh2 Rh2 39.Kh2 Kg6 40.Kg3 f6 41.Rh2? a5 42.ba5 Ra5 43.Rd2 Kf5 44.Rh2 g4 45.Rh5 Kg6 46.Rh2 f5 47.Rd2 Ra4 48.c5 dc5 49.Be5 c4 50.Bb2 Ra2 51.Bc3 Rd2 52.Bd2 Bd5 53.Bc3 f4 (54.ef4 Kf5-+) 0–1. Ruhle,Ernst_Olav – Fekete,Albert, corr ICCF TT/6/02/2, 2004.

12.a4 Qe7 13.a5 c5 14.bc5 dc5 15.dc5 (15.d5 Red8+=) 15...N8d7 (15...Qc5 16.Nb3 Qc8 17.Nd4+=) 16.Nb3 (16.Nd5 Nd5 17.cd5 Bb2 18.Qb2 Nc5+=) 16...Nc5= 17.Nc5 (17.Rfd1 Rad8=) 17...Qc5 18.Nb5 Rec8 19.Rfb1 Qe7 ½–½. Woelfelschneider,Peter (2025) – Milde,Lars (2040), T4–09 TSC, 2002.

12.a4 h5 13.a5 N8h7 14.a6 b6 15.Nd5 c6 16.Nf6 Nf6 17.b5 c5 18.dc5 dc5 19.Rad1 Qe7 20.Nb1 Rad8 21.Rd8 Rd8 22.Nc3 Rd6 23.Rd1 Qd8 24.Rd6 Qd6 25.h3 h4 26.Qd1 Qd1 27.Nd1 Be6 28.Kf1 Nd7 29.Bg7 Kg7 30.Nc3 f5 31.Na4 Kf6 32.Ke1 Ke5 33.Kd2 g5 34.Kc3 g4 35.Kd2 gh3 36.gh3 f4 37.Bf1 f3 38.Nc3 Nf6 39.Na4 Bc8 40.Nc3 Kd6 41.Ke1 Be6 42.Kd2 Ke5 43.Na4 Ne8 44.Kc3 Bc8 45.Kc2 Nd6 46.Kd2 Nf5 47.Ke1 Ng7 48.Nc3 Be6 49.Na4=+ Ne8 50.Kd2 Nc7 51.Nc3 Bd7 52.Ke1 Bc8 53.Kd2 Be6 54.Kc2 Ne8 55.Kd2 Nd6-+ 56.Na4 Nc4 57.Kc3 Nd6 58.Nb2 Kf6 59.Na4 Bd7 60.Nb6 Nb5 61.Bb5 Bb5 62.Nd5 Ke5 63.Ne7 Ba6 64.Ng6 Kf6 65.Nf4 Bf1 66.Kb3 Bb5 67.Nd5 Ke5 68.Nf4 Kd6 69.Ng6 Bf1 70.Nh4 Bh3 71.Ng6 Kc6 72.Kc3 Bf1 73.Ne7 Kb5 74.Nf5 Bd3 75.Nd6 Kc6 76.Nf7 Kd5 77.Ng5 Bf1 78.Nh7 Ke6 79.Ng5 Kf5 80.Nf7 Kg4 81.Nd6 Bd3 82.Nb7 Kh3 83.Nc5 Kg2 84.Nd3 ed3 85.e4 Kf2 86.e5 Ke2 87.e6 d2 88.e7 d1Q 89.e8Q Kf1 90.Qb5 Qe2 91.Qh5 Qe3 92.Kc2 Ke2 93.Qh2 f2 94.Qh5 Ke1 95.Qh4 Qe2 96.Kc3 Qd2 97.Kb3 Qe3 98.Kc2 Qc5 99.Kd3 Qf5 100.Kc3 Ke2 101.Qe7 Kf3 102.Qb7 Kg3 103.Qb8 Qf4 104.Qg8 Kf3 105.Qd5 Qe4 106.Qh5 Ke3 107.Qg5 Ke2 108.Qd2 Kf3 109.Qd1 Qe2 110.Qd5 Qe4 111.Qh5?? Ke3 112.Qc5?? Ke2-+ 113.Qb5 Ke1 0–1. Sternheimer,E (2220) – Heinig,Wo (2325), 80th ch–GER, Saarbruecken GER, 2009.

12.a4 h5 13.Nd5 N8h7 14.Nf6 Qf6 15.Rab1 Qh4 16.Rfe1 Ng5 17.Rbc1 Bg4 18.Qd1 c5 19.bc5 dc5 20.Ba1 Rad8 21.d5 Ba1 22.Ra1 Re5 23.f3?? (better is 23.Bg4 hg4 24.Rb1+=) 23...ef3–/+ 24.Bf3 Rde8 25.Bg4+= hg4 26.g3 Qh5 27.Ra3 Rf5 28.Rf1 Rf1 29.Qf1 Re5 30.Qg2 Rf5 31.Ne4?? Nf3-+ 32.Kh1 Qh8 33.h4? Nh4! 34.gh4 Qh4 35.Kg1 Qe1 (35...Qe1 36.Kh2 Rh5 37.Qh3 Qe2 38.Kg1 gh3 39.Nf6 Kh8 40.Ra2 h2 41.Kh1 Qf1) 0–1. Tomlinson,M (2010) – Hertan,Charles E (2455), Spring Equinox op, 1989.

12.b5 a6 13.ba6 Ra6 14.c5+=.

12.b5 Ne6 13.Nb3 (13.Qd1 h5+=) 13...Ng5 (13...a6 14.a4+=) 14.Kh1 (14.c5 Rb8+=) 14...h5 (14...h6 15.c5+=) 15.Rfc1 Nf3 (15...h4 16.h3+=) 16.h3 (16.gf3 ef3 17.e4 Ne4+/-) 16...Ng4 (better is 16...Ng5!?+=) 17.Bf1+- (17.gf3 Nf2 18.Kh2 Qh4-+) 17...Qh4 18.Nd1 (better is 18.g3!? Qg5 19.Nd5+=) 18...Ngh2= 19.Qe2 Bg4 (better is 19...a5 20.ba6 Ra6=) 20.c5?? (better is 20.g3 Nd4 21.gh4 Be2 22.Be2 Ne2 23.Rc2+/-) 20...Nd4!-+ 21.Qc4 Be6 22.Qc3–/+ Nf1 23.ed4 e3 24.Ne3 Ne3 25.fe3 Bd5 (25...Bd5 26.Kh2 Qg5-+) 0–1. Boehnke,Hartmut (1970) – Gericke,Rolf (2130), 2006.

12.Rac1 h5 13.a4 N8h7 14.c5 d5 15.Qb3 Ng5 16.a5 c6 17.Ra1 a6 18.Ra3 h4 19.Qc2 (19.h3 Nd7 20.Rb1 Qf6=) 19...h3 20.g3 Bg4 21.Bg4 Ng4 22.Ne2 Nf6 23.Qb1 Qd7 24.Qd1 Nf3 25.Nf3 ef3 26.Nc1 Qg4 27.Nd3 Nd7 (27...Ne4!?=) 28.Ne1+= Qe4 29.Rd3 f5 30.Qf3 g5 (30...Qf3 31.Nf3 Bf6 32.Nd2+=) 31.Qe4 (better 31.Qh5!? Qg4 32.Qg6+=) 31...fe4=+ 32.Ra3 g4 33.Rc3 Rf8 34.Rc2 Rf7 35.Bc1 Nf8 (35...Rd8 36.Bb2=+) 36.Re2 (36.Bd2 Ne6=+) 36...Ng6 37.Nc2 Raf8 38.Ne1 Bh6 39.Nc2 Ne7 40.Bd2 Kh7 41.Bc1 Nf5 42.Bd2 Kg6 43.Bc1 Bg5 44.Bd2 Ng7 45.Bc1 Bd8 46.Bd2 Bc7 47.Bc1 Nh5 48.Ree1 Rf3 49.Na3? (49.Na1 Ng7=+) 49...Kh7?? (49...Bg3 50.hg3 Ng3 51.fg3 Rf1 52.Rf1 h2 53.Kh2 Rf1-+) 50.Nb1=+ R3f7 51.Nd2 Ng7 52.Bb2 Ne6 53.Re2 Bb8 54.Ree1 Bc7 55.Re2 Bd8 56.Ree1 Bg5 57.Re2 Bh6 58.Ree1 Ra8 59.Ra1 Ng7 60.Rfe1 Raf8 61.Re2 Kg6 62.Rae1 Nf5 63.Rf1 Bg5 64.Bc3 Ng7 65.Bb2 Ne6 66.Bc3 Bh6 67.Bb2 Ng5 68.Bc3 Re8 69.Bb2 Rfe7 70.Bc1 Kf5 71.Bb2 Nf3 72.Kh1 Rf8 73.Nb3 (73.Nf3 ef3 74.Rd2 Rfe8=+) 73...Ref7 74.Bc1 Kg6 75.Na1 Nd4 (75...Bg7!?-/+) 76.ed4= Bc1 77.Rc1 Rf2 78.Rf2 Rf2 79.Kg1 Rg2 80.Kh1 Rf2 81.Kg1 (81.Nc2 Rd2=) 81...e3 82.Nc2 Rg2 83.Kh1 Re2 ½-½. Aprahamian,Tomas - Ramirez,Agustin (1715), 4th Marcel Duchamp Cup, 2020. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 d6 6.c4 Re8 7.Nc3 Nbd7 8.b4 e5 9.Bb2 e4 10.Nd2 Nf8)

12.Rad1 Qe7 13.a4+=.

12.Rad1 h5 13.a3 h4 14.h3+=.

12.Rad1 h5 13.a3 N8h7 14.Nb3 Ng4 15.Na5 Qh4 (better is 15...Rb8!?+/-) 16.h3+- Ng5? (16...Ngf6 17.Nb7 Ng5 18.Qa4+/-) 17.hg4+/- hg4 (better is 17...Nf3 18.gf3 ef3 19.Qf5 gf5 20.Bf3 f4 21.ef4 hg4 22.Bb7 g3 23.fg3 Qg3 24.Bg2 c5=) 18.Rfe1?? (18.g3 Qh3 19.Nd5 Nf3 20.Bf3 ef3 21.Nf4 Qf1 22.Rf1 Bc2 23.Nb7-+) 18...Nf3–/+ 19.Bf3 gf3 20.Ne2 fg2 21.Ng3 (21.Kg2 Bh3 22.Kh2 Bg4 23.Kg2 Bf3 24.Kf1 Qh1 25.Ng1 Qg2) 21...Bg4 22.Qe2 (22.f3 Bf3 23.Rc1-+) 22...Bf3 (22...Be2!? 23.Re2 b6 24.Nb3-+) 23.Qf3 ef3 24.Nb3 g5 (24...g5 25.Nd2 g4-+) 0–1. Peters,Andreas – Lilleoren,Morten, EU/H48 corr ICCF, 1997. (=1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 g6 5.Nf3 Bg7 6.d4 0-0 7.Be2 Nbd7 8.0-0 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qc2 Bf5)

12.Rad1 h5 13.Nb3 Qd7+=.

12.Rfd1 Ne6+=.

12.Rfd1 h5 13.a3 N8h7 14.Nb3 h4 15.h3 Ng5 16.d5 Nf3 17.Kh1 Qc8 18.Bf1 Nh7 19.c5 Nhg5 20.Rac1 Bh3 21.Ne2 Qg4 22.Nbd4 Bg2 23.Bg2 Nd4 24.Bd4 h3 25.Rg1 hg2 26.Rg2 Qf5 27.c6 Nf3 28.Rg3 bc6 29.dc6 Qh5 30.Kg2 Qh2 31.Kf1 Qh1 32.Ng1 Bd4 33.ed4 Nd4 (34.Qc4 Qh6-+) 0–1. Benassi,Aspasio (2120) – Pecis,Gianfranco (2220), FSI – Torneo dell'Anniversario, 2000.

12.Rfd1 h5 13.Nb3 Bg4 14.h3 Be2 15.Qe2 Qe7 16.Rac1 N8d7 (16...a6 17.d5+=) 17.c5 c6 18.Na5 dc5 19.bc5 Reb8 20.Rb1 Qe6 21.Qc4 Qc4 22.Nc4 b6 23.Ba3 Re8 24.d5 Nd5 25.Nd5+/- cd5 26.Nd6 Re6 27.c6 Nc5 28.Bc5 Bf8 29.Nb5 Bc5 30.c7 a6 31.Na7 Ree8 32.c8Q Rec8 33.Nc8 Rc8 34.Rd5 Kg7 35.Rc1 Rc7 36.h4 Kf6 37.Kf1 Ke6 38.Rd8 f5 39.a4 Rc6 40.Ra8 a5 41.Ke2 Rc7 42.Rf8 Ke7 43.Rb8 Rc6 44.Rb7 Kd6 45.Rd1 Ke5 46.Rd8 Bd6 47.Re8+- Kf6 48.g3 Rc2 49.Kf1 Rc1 50.Kg2 Rc6 51.Rg8 Be7 52.Kh3 Rd6 53.Rgb8 Bd8 54.Rh7 Be7 55.Kg2 Bd8 56.f4 Be7 57.Kh3 Bd8 58.Rbb7 b5 59.Rhd7 Ke6 60.Rd6 Kd6 61.Rb5 Ke6 62.Rb7 Bf6 63.Rb6 Kf7 64.Kg2 Be7 65.Kf2 Bf6 66.Rb7 Ke6 67.Ke2 Bc3 68.Rc7 Bb4 69.Rg7 Kf6 70.Rb7 Be7 71.Rb6 Kf7 72.Kd2 1–0. Buczinski,Henryk (2200) – Atuan,Daniel (2130), SA–2008–O–00015, 2008.

12.Rfd1 h5 13.Nf1 h4 14.c5 d5 15.h3 N8h7 16.b5 Ng5 17.a4 Qc8 18.Nd5?? Nd5-+ (19.c6 Nb4-+) 0–1. Cottarelli,Franco – Fekete,Albert, corr ICCF TT–6–2 Final, 2006.

12.d5 N8d7 13.Nb3 Ne5 14.Nd4 (14.a3 h6+=) 14...Bg4 15.Bg4 Neg4 16.Rab1 (16.Rfc1 Ne5=) 16...Nh2 (16...Qe7 17.h3 Ne5 18.Ne4 Ne4 19.Qe4 Nc4 20.Qe7 Re7 21.Rfd1=) 17.Kh2+= Ng4 18.Kh3 (18.Kg1 Bd4 19.g3 Bc3 20.Qc3 Ne5–/+) 18...Qc8 19.Qd2 (19.Ne6 fe6 20.Kg4 ed5 21.Kh4 Bf6 22.Kg3 Be5 23.Kh4 Qd8 24.Kh3 Qg5=) 19...Ne3=+ 20.Kh2 Ng2 (20...Nf1 21.Rf1 a5=+) 21.Qg5 (21.Nce2 Qg4 22.Nc2 Nh4-+) 21...Nf4=+ (21...Bd4 22.Kg2 Re5 23.Qh4–/+) 22.Nde2?? (better 22.Nce2 Re5 23.Qg3 (23.Qf4 Rh5 24.Kg2 Qh3 25.Kg1 Qh1) 23...Rh5 24.Kg1 Nh3 25.Kg2-+) 22...Re5-+ 23.Qg3 (23.Qf4 Rh5 24.Kg2 Qh3 25.Kg1 Qh1) 23...Rh5 24.Kg1 Nh3 (24...Be5 25.Nf4 Bf4 26.Ne4 Bg3 27.Nf6 Kf8 28.fg3-+) 25.Kg2 Rg5 26.Ne4 Rg3 27.N2g3 (27.N4g3 Qg4 28.f3 Nf4 29.Nf4 Qf4-+) 27...h5 (27...Nf4 28.Kf3 Bb2 29.Rb2-+) 28.Bc1 (28.Bg7 Kg7 29.f3 Nf4 30.Kf2 f5-+) 28...f5 29.Re1 (29.Kh3 fe4 30.Kh2 Qg4-+) 29...fe4 30.Re4 Nf2! 31.Kf2 Qh3 32.Bf4 h4 33.Nf1 (33.Rg1 Qh2 34.Rg2 hg3 35.Kf3 Qh5 36.Kg3 Rf8-+) 33...Qd3 (33...Qd3 34.Rbe1 Bd4 35.Kg2 h3 36.Kh2 Qf3-+) 0–1. DEFFM – GuestBJYN, freechess.org, 2018.

12.Rae1 a5 13.b5=.

12.Rae1 h5 13.Qd1 (13.Nb3 c6+=) 13...Bh6 (13...a5 14.b5=) 14.Nb3+= N8h7 (14...N8d7 15.Na5+=) 15.Bc1 (15.d5!?+=) 15...Ng5= 16.f3 (16.d5!?=) 16...ef3+= 17.Bf3 Nfe4 18.Ne4 Be4 (worse is 18...Re4 19.Be4 Be4 20.Nd2 Nh3 21.Kh1+/-) 19.Nd2 (19.Be4!? Ne4 20.Nd2+=) 19...Nf3–/+ 20.Nf3 Qd7 21.h3 (21.Bb2 a5 22.b5 a4+=) 21...b5 22.Qe2 (22.cb5!? Qb5 23.Bd2–/+) 22...a5-+ 23.Bd2 (23.cb5 ab4 24.Qc4 Qe6 25.Qb4 Ra2-+) 23...ab4 24.Bb4 bc4 25.Qc4 Qc6 26.Nd2? (26.Qc6 Bc6 27.Bd2 Ra2 28.Rf2-+) 26...Qc4 27.Nc4 Bd3 28.Nd6 (28.Nd2 Bf1 29.Nf1 Ra2-+) 28...cd6 29.Rf3 d5 (29...Ra2!? 30.Bd6 Be2 31.e4 Re4 32.Ra3 Ra3 33.Ba3 Be3 34.Kh2 Bd4 35.Rc1-+) 30.a3 Re6 31.Kh1 Bf8 (31...Bg5 32.Kh2-+) 32.Rc1 Bb4 33.ab4 Rb8 34.Rc7 (34.Rc3 Bf5-+) 34...Bf5 35.Kg1 h4 36.Rc3 (36.Rc5 Be4 37.Rf4 g5-+) 36...Rb4 37.Rf4 (37.Rc1 Kg7-+) 37...Rb1 38.Kh2 Re1 39.Rc5 (39.Rh4 R1e3 40.Re3 Re3-+) 39...R1e3 (39...Re4 40.Rd5 R1e3 41.Rf2-+) 40.Rh4 (40.Rd5 R6e4 41.Rf2 Rd3-+) 40...R6e4 41.Re4 Be4 0–1. Karadag,Cem (2200) – Fries_Nielsen,Jens Ove (2300), Wch U20, 1978.

12.h3 a5 13.ba5 Qe7+=.

12.h3 h5 13.d5 N8h7 14.Nb5 Qd7 15.Rfe1 Ng5 16.Bd4 Bh3 (16...a5+=) 17.Bf1?? (17.gh3 Qh3 18.Qd1 Ng4 19.Bg4 hg4-+) 17...h4?? (17...a6 18.Nc7 Bg2 19.Ne8 Bf3 20.Nf6 Bf6 21.Ne4 Be4 22.Qe4 Ne4 23.Bf6 Qg4 24.Bg2 Nf6-+) 18.gh3 Nh3? 19.Bh3+- Qh3 20.Bf6?? Bf6–/+ 21.Nd4 Be5 22.f4 Bd4 23.ed4=+ Qg3 24.Kh1 e3 0–1. Van Rooijen, Peter – Molnar, Attila, a1–h8 Club Championship 2, 2001.

12.h3 h5 13.Rfe1 Bh6 14.Nf1 h4 15.a4 N8h7 16.Nh2 Qd7 17.Qd1 a5 18.b5 b6 19.Rc1 Bg5 20.Bf1 Re7 21.Ba3 Rd8 22.c5 dc5 23.dc5 Qd1 24.Red1 Rd1 25.Rd1+= Rd7 26.cb6 cb6 27.Rd6 Rd6 28.Bd6 Nf8 29.Bc4 Ne8 30.Be5 Nd7 31.Bd4 Nd6 32.Ba2 ½–½. Grund,Karl – Riiga,Aksel, corr ICCF WC, 1981.

13.a4 Ne6 14.a5 c5 15.bc5 (worse 15.Nde4 cd4 16.Nf6 Bf6=+ (worse 16...Qf6 17.Nd5 Qh4 18.Qd2=); worse 15.Nce4 Ne4 16.Ne4 Ng5=) 15...Nd4 16.ed4 e3 17.Bd3 ed2 18.Qd2 Bd3 19.Qd3 dc5 20.d5 Ng4 21.Na4 Bb2 22.Nb2 Qf6 23.Qd2 Re4 24.f3 Rd4 (24...Re2 25.Qe2 Qd4 26.Kf1 Ne3 27.Kg1 Ng4 28.Kh1 Nf2 29.Kg1 Nd1 30.Kh1 Nf2 31.Kg1 Nd1 32.Kh1 Nf2=) 25.Qe2 Ne5 26.Ra3 g5 (26...Qg5 27.Re3 Rd2 28.Re5 Re2 29.Rg5 Rb2 30.d6+=) 27.Re3 Ng6 28.g3 (28.Nd3 b6+/-) 28...h4+= 29.Nd3 hg3 30.hg3 (worse 30.Nc5 gh2 31.Kh1 Rc8 32.Nb7 Rd5-/+) 30...b5 31.cb5 Qd6 32.Kg2 Rd5 33.Nf2 Rd2 34.Qc4 (34.Rd3 Qg3 35.Kg3 Re2 36.Rc5 f6+/-) 34...Rd8 35.Qc5 Qc5 36.Rc5 Ra2 37.Kf1 (37.b6 ab6 38.ab6 Rb2+=) 37...Rdd2+= 38.Ng4 Ra5 39.Rg5 a6 (39...Rb2!?=) 40.f4 Rb5 41.Re8 (41.Rb5!? ab5 42.Rb3+/-) 41...Kg7+= 42.Rb5 ab5 43.f5 Nh8 44.Rb8 Rd5 45.Ne3 Re5 46.Kf2 (46.f6 Kh7 47.Kf2 Ng6+=) 46...f6= 47.Kf3 Nf7 48.Rb6 Ng5 49.Ke2 Ne4 50.Re6 (50.Rb7!? Kf8 51.g4=) 50…Re6 ½-½. Pop,A (2270) - Fedorov,Alex (2555), Romania, 2018. (=1.d4 (E61: King's Indian: Early deviations for White, including Smyslov System) 1...Nf6 2.Nf3 d6 3.e3 g6 4.c4 Bg7 5.Nc3 0-0 6.Be2 Nbd7 7.0-0 e5 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8)

13.a4 h4 14.h3 N8h7 15.a5 Ng5 16.a6 b6 17.Bf1 Bh6 18.Nd5 Nh5 19.b5 Rc8 20.Nb4 Qd7 21.Kh2 Nh7 22.Nc6 Ra8 23.Qd1 N5f6 24.d5 Qc8 25.Nb3 g5 26.Nbd4 Bd7 27.Be2 Bg7 28.Qd2 Nf8 29.Rh1 ½–½. Senk,Christian – Maag,Hauke, GER OL–138 corr, 2002. (=1.d4 g6 2.Nf3 Bg7 3.b4 Nf6 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.c4 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qc2 Bf5)

13.b5 h4 14.h3 N8h7 15.Bf1 Ng5 16.Qd1 (16.Be2 Ngh7=) 16...Qd7 17.a4 Bh6 (17...c5 18.Nb3=) 18.a5 Nh3 (18...a6!?=) 19.gh3+= Bh3 20.Bh3 (20.a6 Rab8+=) 20...Qh3+= 21.Qf1 Qf5 22.Nd5 Nd5 23.cd5 Re7 24.b6 ab6 25.ab6 Ra1 26.Ra1 cb6 27.Nc4 Qd5 28.Nb6 (28.Ra8 Kh7 29.Ba3 Re6+=) 28...Qg5= 29.Kh1 Kh7 (29...Rc7 30.d5 Bg7 31.Qe2=) 30.d5 (30.Ba3 Re6+=) 30...Qf5 (30...Rc7 31.Qe2 Bg7=) 31.Qg2 (31.Ra8!? Bg7 32.Bg7 Kg7 33.Ra2=) 31...Rc7+= 32.Rf1 (32.Bd4 Rc2 33.Kg1 g5–/+) 32...Rc2–/+ 33.Bd4 Bg5 (33...Bf8 34.Kg1–/+) 34.Qh2 Be7 35.Qf4 Qh3 36.Kg1 Qf3 (36...f5 37.Qh2 Qh2 38.Kh2=) 37.Qf3= ef3 38.e4 (38.Nd7 g5=) 38...g5= 39.Be3 g4 (39...Kg6 40.Rc1 Rc1 41.Bc1=) 40.Bf4 (40.Rc1 Re2 41.Nc8 Bf8+=) 40...Bd8 (40...Kg6!?+=) 41.Nd7= Rc7 (41...Be7 42.Nb6=) 42.Nb8 (42.Nf8!? Kg7 43.Bd6=) 42...Rc4= 43.Bd6 Re4 44.Bc5 Re5 45.Rd1 g3 46.Nd7 Re2 47.d6 Kg6 48.Bd4 Kf5 49.Nc5 b5 50.d7 b4 51.Nb7 Bg5 52.d8Q Bd8 53.Nd8 b3 54.Nf7 b2 55.Nd6 Kg4 56.Nc4 h3 57.Ne5 Kf4 58.fg3 Kg3 59.Nd3 Rd2 60.Be5 Kg4 61.Rd2 b1Q 62.Kh2 Qb5 63.Nf2 Kf5 64.Bg3 Qf1 65.Nh3 Ke6 (65...Qa1!?=) 66.Rf2 Qd1 67.Ng5 Ke7 (67...Kf5 68.Nf3 Qd5 69.Kh3+/-) 68.Nf3 Qd5 69.Kg2 Ke8 (69...Kf6 70.Rb2+/-) 70.Re2 Kf7 71.Bf4 Qc6 72.Kg3 Qc3 73.Re3 Qg7 (73...Qc8 74.Re5+/-) 74.Ng5+- Kg6 75.Kg4 Qd7 (75...Qd4 76.Re6 Kg7 77.Rd6+-) 76.Re6+- Kg7 77.Kf5 (77.Be5!? Kg8+-) 77...Qd3+/- 78.Ne4 Qh3 79.Ke5 Qh5 80.Kd4 Qb5 81.Be5 Kf8 82.Bd6 (82.Rf6 Kg8+-) 82...Kf7 83.Rf6 Ke8 84.Bc5 Qa4 85.Ke5 Qa1 86.Kf5 Qf1 87.Ke5 Qa1 88.Bd4 Qa5 89.Kf4 Qd5 90.Rd6 Qa2 91.Bf6 (91.Kf5 Qb1+-) 91...Kf7 (91...Qh2 92.Kf5 Qh7 93.Ke5 Qh5 94.Kd4 Qd1 95.Kc4+/-) 92.Ng5+- Kg6 93.Bd4 Kh5 94.Ne4 Qf7 95.Rf6 (95.Nf6 Kg6+-) 95...Qg8?? (better is 95...Qc7 96.Kf3 Qc1+/-) 96.Ng3 1–0. Bukavshin,Ivan (2615) – Tsydypov,Zhamsaran (2405), St Petersburg RUS, Chigorin Mem Blitz, 2014. (=1.e3 g6 2.Nf3 Bg7 3.d4 Nf6 4.Be2 0-0 5.0-0 d6 6.c4 Nbd7 7.Nc3 e5 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8 11.Qc2 Bf5)

13.c5 d5 14.b5 Ne6 15.Qb3 h4 16.a4 h3 17.g3 Bh6 18.Na2 Ng5 19.Nb4 Qc8 20.a5 Bg4 21.Bf1 Qf5 22.a6 Bh5? 23.ab7+- Ng4 24.f4 ef3 25.ba8Q f2 26.Kh1 Ra8 27.Qd5 Ne3 28.Qa8 Kh7 29.Bd3 Qf6 30.Qc6 Ne6 31.Be4 Nd1 32.Rd1 Bd2 33.Nd3 Bd1 34.Nf2 Qf2 35.Rd1 Be1 36.Bg2! Ng5 37.Rb1 hg2 38.Qg2 Qe3 39.Bc1 Qd3 40.Ra1 Ne4? 41.Bf4 Bc3 42.Rf1 Bd4 43.h3 Qb5+= 44.Bc7 f5 45.g4 Qc5 46.gf5 gf5 47.Bf4 Qc6 48.Kh2 Qg6 49.Qf3 Qf7 50.Qe2 Bb6 51.Rc1 Qg6 52.Qd3 Qg7 53.Qb5 Qf7 54.Rc2 Kg6 55.Rg2 Kh7 56.Qc6 Nf6 57.Be5 Bd8 58.Qc8 (58.Qc8 Qd7 59.Qd7 Nd7 60.Rg7 Kh6 61.Rd7+-) 1–0. Kosic,Dragan (2445) – Vratonjic,Slobodan (2375), YUG–ch Banja Vrucica, 1991.

13.Nd5 N8h7 14.Nf6 Qf6 15.Rab1 Qg5 16.d5 h4 17.Bg7 Kg7 18.Bf1 Nf6 19.Nb3 h3 20.g3 Ng4 21.Nd4 Bd7 22.c5 Qd5= 23.cd6 cd6 24.Qb2 Kg8 25.Ne2 Qf5 26.Nd4 Qd5 27.Rc7 Ne5=+ 28.Ne2 Rac8 29.Nf4 Nf3 30.Kh1= Qe5 31.Rd7 Qb2 32.Rb2 Rc1 33.Nh3 Rf1 34.Kg2 Rd1 35.g4 g5 36.Rb7+/- Rc8? 37.Rb5?? d5 38.Rc5 Rb8 39.Rb3 Rb6 40.Ra3 Rf6 41.Kg3 Ng1 (41...Ng1 42.Rd5 Ne2 (42...Rd5?! 43.Ng1 a6 44.Nh3=) 43.Kg2 Rd5 44.Ra7 Rh6-+) 0–1. Glyanets,Alexander R (2350) – Gazi,Mikulas (2330), Bratislava Slovan op, 1990.

13.a4 Qe7 14.a5 h4 15.a6 b6 16.Nb5 h3 17.g3 Bg4?? (better is 17...N8h7+/-) 18.Bf6+- Bf6 19.Bg4 Ba1 20.Ra1 Nh7 21.Bh3 Ng5 22.Bg2 Nf3 (22...f5 23.Nd4+-) 23.Nf3 ef3 24.Bf3 Qf6 25.Nd4 1–0. Slabek,Grzegorz (2055) – Popiol,Michal (1865), Dobczyce Poland, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.c4 Nbd7 8.d4 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qc2 Bf5)

13.Nb5 h4 14.Nd4 Bd7 15.a3 h3 16.g3 Qe7 17.Rfc1 Bg4 18.Bf1 N8h7 19.a4 (19.Qa4 Ng5=) 19...Ng5 (19...a5 20.b5=) 20.a5 a6 21.Rab1 Nd7 (21...Rab8 22.Qc3=) 22.c5+= Bd4 (22...Nf6 23.cd6 Qd6 24.Qc7 Qc7 25.Rc7 Nd5 26.Rc5+= (< 26.Rb7 Bc8 27.Ba6 Ra6–/+)) 23.Bd4 (23.ed4 e3 24.cd6 ef2 25.Kh1 Qe3 26.Bh3 Nh3-+) 23...Ne5 24.Be5 Qe5 25.Nc4 (25.Bc4 Rad8+=) 25...Qe7 (25...Qd5 26.cd6 Nf3 27.Kh1 Rec8+/-) 26.b5 (26.cd6 Nf3 27.Kh1 cd6+=) 26...ab5 (26...Nf3 27.Kh1=) 27.Rb5+= dc5 28.Rb7 (28.Nd2 c6 29.Rc5 cd5 30.Rd5 Rec8=) 28...Qd8 29.Qc3 (29.Ra1 Bc8 30.Rb5 Nf3 31.Kh1 Qd5=) 29...Bc8 30.Rb5 Qd5 31.Qa3 Qd8 (31...Nf3 32.Kh1=) 32.Qc5+= Nf3 33.Kh1 Qf6 (33...Qe7 34.Ra1+=) 34.Qc7 Nh2 35.Kh2?? (35.Rb6 Qf3 36.Kh2 Qf2 37.Kh1–/+) 35...Qf2-+ 36.Kh1 Bg4 (36...Bg4 37.Qf4 Bf3 38.Qf3 ef3-+) 0–1. Bisguier,Arthur – Fischer,Robert, Bay City, 1963.

13.Nb5 N8h7 14.c5 dc5= 15.bc5 Nd5 16.Bg7 Kg7 17.c6 b6 18.a4 Qg5 19.Kh1 Nhf6 20.a5 Kh7 21.Nd4 Ng4 22.Qb3 Rad8 23.ab6 ab6 (23...Nb6? 24.Qf7 Kh6 25.Qc7 Rd4 26.ed4 Qd2 27.Bg4 Bg4 28.Ra7+-) 24.Ra7 Qh4 25.Bg4 hg4 26.g3 (26.Rc7 Rh8 (worse is 26...Nc7 27.Qf7 Kh8 28.Qc7+=) 27.Nf5 gf5=) 26...Qh6 27.Rd1 Rh8 28.Nf1 Be6 29.Ne6 fe6 30.Rd5 Rd5?? (better is 30...ed5 31.Rc7 Kg8 32.Qb6 Qf8+=) 31.Rc7+- Kg8 32.Qb6 Qf8 33.Qb7 Rd8 34.Kg1 Rb8 35.Rg7!? Qg7 36.Qb8 Kh7 37.c7 Qd7 38.Qb4 Rc8 39.Qe4 Rc7 40.Qg4 Rc1 41.f4 Qd3 42.Qf3 Rb1 43.g4 Re1 44.g5 Rb1 45.h4 e5 (45...Kg7 46.Kg2=) 46.fe5+/- Rf1 (better is 46...Qc4!?+/-) 47.Qf1+- Qe3 48.Qf2 Qe5 49.Qf7 Kh8 (better is 49...Qg7 50.Qg7 Kg7+/-) 50.Qf8 Kh7 51.Qh6 Kg8 52.Qg6 (52.Qg6 Kh8 53.Qh5 Kg7 54.Qg4+-) 1–0. Bulcourf,Carlos (2160) – Mirada,Luciano (1760), Rubinstein Memorial op, 2009. (=1.Nf3 Nf6 2.b4 d6 3.c4 e5 4.Nc3 g6 5.e3 Bg7 6.Be2 0-0 7.0-0 Re8 8.Bb2 Nbd7 9.d4 e4 10.Nd2 Nf8 11.Qc2 Bf5 12.d5 h5)

13.Nb5 N8h7 14.Rfd1 a6 15.Nd4 Bg4 16.N2b3 Be2 17.Qe2 Ng4 18.c5 (18.Na5 Rb8=) 18...Qh4 (18...dc5 19.Nc5 Qd6 20.g3= (20.Nb7?? Qh2 21.Kf1 Qh1)) 19.h3+= Ne5 20.Na5 Rab8 21.Nc4 Nc4 22.Qc4 Ng5 23.Rd2 Be5 24.Ne2 Bb2 25.Rb2 Nh7 26.Rab1 Nf6 27.c6 b5 28.Qd4 Ra8 29.f4 Nh7 30.a4 g5 31.fg5 Ng5 32.Rf1 Re5 33.Kh2 Kh7? (better is 33...Nh7!?+/-) 34.Ng3 (34.Rf4 Qe1 35.Nc3 h4+-) 34...Rg8 35.Rf4?? (better is 35.Nf5 Rf5 36.Rf5+-) 35...Qg3+= 36.Kg3 Nf3 37.Kf2 Nd4 38.ed4 Rd5 39.Rf7 Rg7 40.Rg7 Kg7 41.Ke3 ba4 42.Ra2 (42.Ke4?! Rb5=) 42...Rb5 43.Ra4 d5 44.Ra6 Rb4 45.Ra5 Rb2? (better is 45...Rb6+-) 46.Rd5 Rg2 47.Ke4 h4 48.Rd7 (48.Rd7 Kf6 49.Rc7+-) 1–0. Postojev,Alexander (2300) – Meissner,Bernd Guenther (2425), BL2–Sued, 2008. (=1.Nf3 Nf6 2.c4 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 d6 6.d4 Nbd7 7.b4 e5 8.Bb2 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qc2 Bf5 12.d5 h5)

13.Nb5 N8h7 14.Nd4!?+=.

13.c5 dc5= 14.bc5 Nd5 15.Nd5 Qd5 16.Bg7 Kg7 17.Nb3 Qe5 18.Rfc1 Ne6 19.h4 (19.Rab1!?+=) 19...Qf6–/+ 20.Qc3 Red8 21.Bf1 b6 22.Kh2 Bg4 23.Kg3 g5 24.hg5 Ng5 25.Qf6 Kf6 26.Nd4 Ne6 27.Nb3 Rg8 28.Kh2 Rg5 29.Rc4 Rf5 (worse is 29...bc5 30.Re4 c6 31.Rc1+=) 30.Kg1 Re5 31.cb6 ab6 32.a4 Bf5 33.Nd4 Nd4 34.ed4–/+ Re7 35.Rc6 Kg5 36.d5 Rd8 37.Bc4 Kf4 38.Rc1 Rd6 39.Rd6 cd6 40.Be2 Ke5 41.Rb1 Ra7 42.Bh5 f6 43.Be8+= Kd5 44.Rb6 Be6 45.Bb5 Ke5 46.f4 Kd5 47.Kf2 Rc7 48.Be2 Kc5 49.Rb1 Ra7 50.Rc1 Kb4 51.Rd1 d5+= 52.f5 Bg8 53.Ke3 Rg7 54.g4= Ka4 55.Rb1 Rc7 56.Rb8 Bf7 57.Rb6 Be8 58.Rf6 Kb4 59.Rd6 Kc5 60.Rd8 Re7 61.f6+- Re6 62.g5 Bg6 63.Bg4 Ra6 64.Rc8 Kd6 65.Rg8 Bf7 66.Rg7 Ke5 67.Rf7 d4 68.Kf2 Kf4+= 69.g6 Kg4 70.g7 Ra2 71.Ke1 Kf3 72.g8Q e3 73.Ra7! Ra7 74.Qd5 Kg3 75.Qd4 (75.Qd4 Ra5 76.Qe3 Kg4 77.Qd4 Kh5 78.f7+-) 1–0. Bulcourf,Carlos (2160) – Della Morte,German (2340), Villa Martelli Pro Am op, 2009.

13.h3 Qd7 14.Rfd1 N8h7 15.Bf1 h4 16.Nb3 Ng5 17.Nd4 Bh3 (17...a5 18.Nf5 Qf5 19.Nb5+=) 18.gh3 Nh3 19.Kh2?? (better 19.Kh1+/-) 19...Ng4-+ 20.Kh3 Ne3 21.Kh2 Nc2 22.Nc2 Qe6 (better 22...Qf5 23.Kg1 h3-+) 23.de6+- fe6 (23...Re6 24.Nd4 Ree8 25.Rab1+-) 24.Na4 (24.Nd4!? c5 25.bc5 dc5+-) 24...Rf8 25.Kg1 1-0. Arifars17 (2725) - swimmerchess (2725), Rated Bullet game, lichess.org, 2021. (=1.d4 g6 2.Nf3 Bg7 3.e3 Nf6 4.c4 0-0 5.Be2 d6 6.0-0 Nbd7 7.b4 e5 8.Bb2 e4 9.Nfd2 Re8 10.Nc3 Nf8)

14.Nd4 Bc8 15.Rac1 Ng5 16.Rfd1 Ng4 17.Bf1 (17.c5 a5 18.Ncb5 ab4 19.cd6 Qf6+/-) 17...Be5 18.g3?? (18.h3 Nf6+=) 18...Nf3?? (better is 18...Bd4 19.ed4 e3 20.fe3 Ne3–/+) 19.Nf3+= ef3 20.Rd2 h4 21.Bd3 hg3 22.hg3 Bg3?? (better is 22...Qg5 23.Be4 Ne3 24.fe3 Qg3 25.Kh1 f5–/+) 23.fg3+- Ne3 24.Qb3?? Qg5–/+ 25.Ne4 Re4!-+ 26.Be4 Qg3 27.Kh1 f2 28.Rf2 Qf2 29.Qc3 Qh4 30.Kg1 Qg3 31.Kh1 ½–½. Mielke,Sven (2105) – Badestein,Hartmut (2175), Oberliga Nord O, 2004.

14.Nd4 Bd7 15.Rad1 (15.c5 dc5 16.bc5 c6+/-) 15...Qe7 (15...a5 16.b5+=) 16.a4 (16.a3 a5+=) 16...a5 17.Ba3 (17.ba5 Ra5 18.Qb3 b6+=) 17...ab4= 18.Bb4 Ng5 19.Ncb5 Rac8 (19...h4 20.h3=) 20.Ba5 b6 (20...Bg4 21.Bg4 Ng4 22.h3=) 21.Bb4 (21.Bc3 h4+=) 21...Qe5 (better is 21...h4+=) 22.h3 (22.a5 ba5 23.Ba5 Bb5 24.Nb5 Qe7+/-) 22...Nf3 (better is 22...Nh3!? 23.gh3 Bh3–/+) 23.gf3 Qg5+= 24.Kh1 Qh4 25.f4 Qh3= 26.Kg1 Ng4 27.Bg4 hg4?? 28.f3?? ef3 29.Qh2 Qh2 30.Kh2 Re3 31.Rde1 Rce8 32.Re3 Re3–/+ 33.Bd2? Rd3-+ 34.Bc3 Bb5 35.Nb5 Bc3 36.Nc7 Rd2 37.Kg3 Rg2 38.Kh4 Bf6# 0–1. Vyoga – Doda (2070), Freundschaftspartie, 5m + 0s, 2007.

14.Nd4 Bg4 15.Bg4 hg4 16.a4 Ng5 17.a5 a6 18.b5 Re5 19.Qb3 Nd7 20.Qd1 Nf3 21.gf3 ef3 22.Nf3?? gf3= 23.Qf3 Qh4 24.Qe2 Rae8=+ 25.Nd1 Rg5–/+ 26.Kh1 Bb2 27.Nb2 Rh5 28.f4 Re3! 29.Qf2 Nf6 30.Qh4 Rh4 31.Rf2 Ng4 32.Rd2 Reh3 33.ba6 ba6 34.Nd3?? Rd3! (34...Rd3 35.Rd3 Nf2 36.Kg2 Nd3-+; < 34...Nh2 35.Kg2 Ng4 36.Re1-+; 34...Rh2?! 35.Rh2 Rh2 36.Kg1–/+) 0–1. Feilmayr,Erwin – Fekete,Albert, corr ICCF TT–6–02–F, 2008.

14.Nd4 Bg4 15.Bg4 hg4 16.Nde2 Ng5+= 17.Ng3 (17.a3 Qd7+=) 17...Qe7 18.Rfd1 (18.Qa4 a5+=) 18...Nd7 (18...a5 19.a3+=) 19.Rab1 (19.a3 a5+=) 19...f5 (19...a5 20.ba5 Ra5 21.Nce4 Ra2 22.Ng5 Qg5 23.Qb3+=) 20.Nce2+/- Bb2 21.Rb2 Ne5 22.Nf4 b6 23.Rc1 Qg7 24.Rb3 Nd7 25.Nge2 Qh6 26.Ra3 Re7+= 27.Ng3 Rh7 28.Kf1 Qg7 29.Qa4+= Ne5 30.c5 Qe7 31.Qa6 Rf7 32.Qb7+/- Rd8 33.Qa7 bc5 34.bc5 Qe8 35.Qa6 Kh7 36.cd6 Rd6 37.Qa5 c6+/- 38.Qc5 Rfd7 39.Ra7 Ra7 40.Qa7 Rd7 41.Qb6 cd5 42.Qf6 Qe7 43.Qe7 Re7 44.Nd5 Re6 45.Rc7 Ngf7 46.Ne2 Ra6 47.Nec3 Kh6 48.a4 Nd6 49.Nb4 Ra5 50.Ke2 Ndc4 51.Rb7 Ra8 52.Rb5 Rd8 53.Nbd5 Nd6 54.Rb1 Ndc4 55.Rb7 Nd3 56.h4 gh3 57.gh3 Nc1 58.Kf1 Nd2 59.Kg2 Na2 60.Rb2 Nc3 61.Nc3 Nc4 62.Rb4 Ne5 63.Rb5 Nf3 64.Rb1 Rc8 65.Nb5 Nd2 66.Ra1 Nb3 67.Ra3 Na5 68.Rc3 Rd8 69.Nd4 Rb8 70.Rc5+- Ra8 71.Rc7 Rb8 72.Rc5 Ra8 73.h4 Nb7 74.Rc7 Nd8 75.Rd7 Kh5?? 76.Kg3 Kh6+- 77.a5! Rc8 78.a6 Nc6 79.a7 Nd4 80.Rd4 Ra8 81.Rd7 g5 82.hg5 Kg5 83.Rb7 1–0. Kempinski,Robert (2520) – Badea,B (2480), 34th Olympiad, Istanbul TUR, 2000.

14.Nd4 Ng4 15.h3 (better is 15.Nf5 gf5 16.c5+/-) 15...Qh4?? (better is 15...Nh6!?+/-) 16.hg4 (16.Nf5 gf5 17.Nb5 Bb2 18.Qb2 Re7 19.hg4 fg4+-) 16...hg4? (16...Be5 17.f4 Bd4=) 17.Bg4 (better is 17.Nf5 gf5 18.Nb5+-) 17...Qg4+= 18.Nf5 gf5 19.Qd1 Qh4 20.f4 (better is 20.Qe2!?=) 20...ef3–/+ 21.Qf3 Re3! 22.Qe3 Bd4 23.Nd1 Be3 24.Ne3 f4 25.Nf5 Qg5 26.Nd4 Nf6 27.Nf3 Qh6 28.Rae1 Ng4 29.Re7 Ne3-+ 30.Re1 Qg6 31.Re2 Qd3 32.Nd4 Qc4 33.g3 Kf8 34.Re4 Qd5 35.Rf4 Re8 36.Rh4 Re5 37.g4 c5 38.bc5 dc5 39.Rh8 Kg7 40.Nf5 Kh8 41.Rh2 Kg8 42.Ne7 Kf8 43.Nd5 Rd5 44.Rh8 Ke7 45.Rb8 Rd7 46.g5 Kd6 47.a4 0–1. Kovacevic,Vlatko (2495) – Ligterink,Gert (2430), Karlovac, 1977. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nbd7 8.d4 e4 9.Nfd2 Re8 10.Nc3 Nf8 11.Qc2 Bf5 12.d5 h5)

12.Qb3 Bf5 13.Rfd1 N8d7 14.Nb5 Ne5 15.Rac1 Bg4 16.Bg4 Nfg4 17.Ne4 Nh2 18.Kh2 Ng4 19.Kg1 Re4 20.Bg7 Qh4 21.Qb2 Qh2–/+ 22.Kf1 Qh1 23.Ke2 Qg2 24.Re1 Re3 25.Kd1 Nf2 26.Kd2 Ne4 27.Kd1 Rd3 (27...Rd3 28.Qd2 Qd2#) 0–1. Stanetzek,Carsten – Silbermann,Frank, Cologne–ch, 1991.

12.Nb3 N8h7 13.Nd4 Bh6 14.Qd2 h4 15.a4 h3 16.g3 Bg4 17.a5 a6 18.Qd1 Qd7! 19.Qa4 Qe7 20.Qd1 Qd7 21.Qa4 Qc8 22.Qc2 Ng5 23.Qd2 Qd7 24.Bd1 Bd1 25.Qd1 Bg7 26.Kh1 Qg4 27.Rb1 Qd1 28.Rbd1 Ng4 29.Nce2 b6 30.Ba1 ba5 31.ba5 Rab8 32.Rc1 Rb4 33.Nc6 Ra4 34.Bg7 Ra2 35.Bh6 Nf3 0–1. Trokenheim – Gromark, corr SSKK M–184 1993–94.

12.Qc2 Bf5 13.Nb3 Ng4 14.g3 Nh7 15.Nb5 Ne5 16.Be5 Be5 17.Rac1 a6 18.N5d4 Bh3 19.Rfe1 Qg5 20.Nd2 Nf6 21.Nf1 Kg7–/+ 22.a3 Re7 23.Qd2 Qh6 24.f4 ef3 25.Nf3 Rae8 26.Bd3 Bg4 27.Qf2 Nh7 28.N1d2 Bb2 29.Rb1 Bc3 30.Rb3 Bd2 31.Nd2 Re3 32.Re3 Qe3 33.Qe3 Re3 34.Kf2 Re5 35.a4 Nf6 36.a5 Bd1-+ 37.Rc3 Ng4 38.Kg2? Re3 39.Nf1 Bf3 40.Kg1 Re1 41.h3 Ne5 42.Kf2 Ra1 43.Nd2 Ra2 44.Ke3 Bg2 45.h4 Ng4 46.Ke2 Bf3 47.Kf3 Rd2 48.Be2 Rb2 49.b5 Ra2 50.Rb3 Ra5 51.b6 Rc5 52.bc7 Rc7 53.Rb6 Ne5 54.Ke3 Nc4 55.Bc4 Rc4 56.Rd6 Rb4 57.Rd8 Kf6 58.Re8 Rb2?? 59.Kd4?? b6-+ 60.Kc4 Rc2 61.Kd4 a5 62.Rb8 Rb2 63.Re8 a4 64.Kc4 a3 65.Ra8? b5 66.Kc5 b4 67.Ra5?? Ke5 68.d6 Ke6 69.Ra7 Kf6 70.Kc6? Re2 71.Kd7?? Rc2 72.Ke8 Rc8 73.Kd7 Rb8?? 74.Kc7+= b3?? 75.Kb8+- b2 76.Rb7 a2 77.d7 b1Q 78.d8Q Kg7 79.Qd4 Kg8 80.Qf6 (80.Qf6 Qf5 81.Qf5 gf5 82.Ra7+-) 1–0. Slavin,A (2330) – Radovanovic,J (2360), Uxbridge Congress Open, Uxbridge ENG, 2009.

12.Qc2 Bf5 13.Nb3 N8h7 14.Nb5 Ng5 15.Rfd1 Ng4 16.Bg7 Nf3? (better is 16...Kg7 17.c5 a6+/-) 17.Bf3+- (17.gf3?! ef3 18.Qb2 fe2 19.Qe2 Kg7=) 17...ef3 18.Qb2 Qh4 19.h3 fg2 20.Bh8 f6= 21.f3 Re3 22.Qg2 Ne5=+ 23.N5d4? Kh8-+ 24.Qf2 Qf4 25.Kg2 Nf3! 26.Nf5 Qh2 27.Kf1 Qh1 (27...Qh1 28.Qg1 Qg1#) 0–1. Ristic,Milan – Nestorovic,L (2175), 20th Belgrade Trophy, Belgrade SRB, 2007.

12.Qc2 Bf5 13.Nb5 N8h7 14.Nd4 Bg4 15.Bg4 (15.N2b3 Be2 16.Ne2 Ng5+=) 15...hg4= 16.Ne2 Ng5 17.Ng3 Qe7 18.Bd4 Nd7 19.Qc3 Bd4 20.ed4 f5 21.Rae1 (21.Ne2 Kg7=) 21...Qh7 (21...Qf6 22.Re2+=) 22.Qe3 Qh4 23.Qf4 Nf6 24.f3 (24.a4 Kg7 25.Ne2 Rh8-+) 24...ef3–/+ 25.Nf3 (25.Re8 Re8 26.Nf3 Nf3 27.Rf3 Re1 28.Rf1 Re7–/+) 25...Nf3 26.gf3 Qh3?? (better is 26...Kf7 27.Re6 Re6 28.de6 Ke6 29.fg4 Qg4 30.Qg4 Ng4-+ (30...fg4?! 31.Re1 Kd7 32.Rf1+=)) 27.Qg5+- Kf7 28.Re6! Re6 29.de6 Ke6 30.Qg6 Rh8 (30...gf3 31.Rf3 Rh8+-) 31.Re1 Kd7 32.Qf5 (32.Qf6?! Qh2 33.Kf1 Qh3 34.Kf2 Qh2 35.Kf1 Qh3 36.Kf2 Qh2 37.Kf1=) 32...Kd8 33.Qf6 Kc8 34.Qe6 (34.Qf5!? Kb8 35.Re2 a5+-) 34...Kd8 35.Qf6 Kc8 36.Qf5 Kd8 (36...Kb8 37.Re2 Qh6 38.fg4+-) 37.Qg5 Kc8 38.Qg4 (38.Qg4 Kd8 39.Qh3 Rh3 40.Kg2+-) 1–0. Steffens,Olaf (2275) – Hundack,Ralf (2220), Verden/Aller GER, Men Ch, 2014.

12.Qc2 N8h7 13.c5 Bf5 14.Rfd1 Ng5 15.Nb5 (15.Nb3 Qe7+/-) 15...a6 (15...dc5 16.Qc5 Nd5 17.Bg7=) 16.Nd4+= Bg4 17.cd6 (17.Bg4 dc5 18.Ne6 fe6 19.Be6 Ne6 20.de6 Qe7 21.Ne4 Ne4+-) 17...cd6 (17...Qd6 18.h4 Ngh7 19.Rab1=) 18.Qb3 Nd7 19.h4 (19.Bg4 hg4 20.Nc4 Nf6+/-) 19...Bd4 (19...Be2 20.Ne2 Bb2 21.Qb2=) 20.Bg4+= hg4 21.Bd4 Nh7 22.g3 (22.Nc4 Qe7+/-) 22...Ne5 23.Kf1 Nf6 24.Nc4 Nf3 (24...Nd5? 25.Ne5 de5 26.Bb2+-) 25.Bb2 Rc8 26.Rac1 (26.b5 ab5 27.Qb5 Rc5 28.Bf6 Rb5 29.Bd8 Rd8=) 26...Nh5 (26...b5 27.Na5 Rc1 28.Bc1=) 27.Ke2 (27.b5 ab5 28.Qb5 Ra8+/-) 27...Kh7 (27...Ng7 28.Nd2=) 28.a4 Re7 29.b5 ab5 30.ab5 Ng7? (better is 30...Rd7!?=) 31.Bf6+/- Nf5 32.Qb2 Rc5 33.Be7 Qe7 34.Na5 Rc1 35.Rc1 Ne5 36.Qc3 Qf6 37.Nb3 Ng3? 38.fg3+- Qf3 39.Kd2 Qf2 40.Kd1 Nd3 41.Ra1 Nb2 42.Kc1 Nd3 43.Kb1 Qf1 44.Kc2 Qe2 45.Qd2 Nb4 46.Kc3 Qb5 47.Ra5 Qb6 48.Qd4 (48.Qd4 Qd4 49.Nd4+-) 1–0. Babujian,L (2500) – Harutjunyan,G (2455), Yerevan ARM, 2013. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.d4 e5 8.0-0 e4 9.Nfd2 Re8 10.Nc3 Nf8)

12.Qb1 Bf5 13.Bd1 Bh6 14.Bc2 Qe7 15.Ba3 N8h7 16.Nf1 h4 17.f4 g5 18.fg5 Ng5 19.h3 Kh8 20.Re2 Rg8 21.Kh1 Bh3 22.gh3 Nf3 (22...Qe6 23.Nh2 Nh5–/+) 23.Nh2+/- Nh5 (23...Qe6 24.Ng4 Ng4 25.hg4 Rg4 26.Qf1-+) 24.Ne4 f5 25.Nf3 fe4 26.Ng1 d5 27.Qe1 Ng3 28.Kh2 c6 29.Rf2 Qc7 30.Bc1 (30.Rf4!? Bf4 31.Nf3 (31.ef4?? Qf4 32.Kg2 Nf1 33.Qg3 Qg3 34.Kf1 Qg1 35.Ke2 Rg2) 31...Be3 32.Ne5 Bd4 33.Bb2 Bb2 34.Ng4-+) 30...Ne2-+ 31.Rf4 Ng1 (worse is 31...Nf4 32.ef4 Bf4 33.Kh1=; 31...Bf4?! 32.ef4 Ng1 33.Qh4 Qh7 34.Qh7 Kh7 35.h4 Nf3 36.Kh3 Nd4 37.Bb3-+) 32.Bd1? (better is 32.Kh1 Nf3 33.Rf3 ef3 34.Qh4-+) 32...Bf4 33.ef4 Rg3 (33...Rg3 34.Qf2 Rag8-+; 33...dc4 34.Qe4 Rg3 35.Bg4-+) 0–1. Mueller,Thomas – McLellan,Richard Alan, NAmerica–ch1 corr7175, 1971. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 Nbd7 7.0-0 e5 8.Nc3 Re8 9.d4 e4 10.Nd2 Nf8 11.Re1 h5)

12.b5 N8h7 13.Rc1 Ng5 14.Qc2 Bf5 15.Nd5 Ng4 16.Nf1 Nf3? (16...c6 17.Nf4+=) 17.Bf3?? (17.gf3 Nf2 18.f4+- (18.Kf2?! Qh4 19.Kg1 ef3 20.Qf5 gf5 21.Bf3 Rac8+/-)) 17...ef3= 18.e4 fg2 19.Kg2 Bd7 20.f3 Nf6 21.a4 c6 22.Nde3 Nh7 23.bc6 bc6 24.d5 Bb2 25.Qb2 c5 26.Qc2 Rb8 27.Rb1 Qa5 28.Ra1 Rb4 29.Reb1 Reb8 (worse is 29...Ra4 30.Ra4 Qa4 31.Qa4 Ba4 32.Ra1+=) 30.Nd2 (30.Rb4 cb4 31.Qb3 Qd8+=) 30...Nf8 31.Nb3 Qd8 32.Nd2 Qg5 33.Kf2 Qf4 34.Nef1 g5 35.a5 Ng6 36.Rb4 Rb4 37.Rb1 Ne5 38.Qc3 Bh3 39.Rd1 Bf1 40.Rf1 Qh2 41.Ke3 h4 42.Qc1 (42.Rf2 Qg1 43.Ke2 h3-+) 42...h3 (42...f5!? 43.Rf2 f4 44.Ke2 Qf2 45.Kf2 Nd3 46.Kg1 Nc1 47.e5 de5 48.d6-+) 43.Rh1 (43.Qc3 Qg2 44.Rf2 Qg1-+) 43...Qf4 (43...Nc4 44.Qc4 Qh1 45.Qf1-+) 44.Ke2 h2 45.Qc3 (45.a6-+) 45...Qg3 46.Qc1 g4 0–1. Kapengut – Liuboshits,A, USSR, 1960. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 Re8 9.Nc3 e4 10.Nd2 Nf8)

12.c5 d5 13.b5 N8h7 14.Qb3 Be6 15.b6 ab6= 16.cb6 c5 17.Bb5 cd4 18.ed4+/- Ng4 19.Nd1 Rf8= 20.Be2 f5 21.a4 Qh4 22.Bg4 hg4 23.a5 Ng5 24.a6 f4 25.ab7 Ra1 26.Ba1 Bh6?? 27.Qa3+- Nf3 28.Nf3 gf3 29.Qf8 Bf8 30.b8Q Qg4 31.Ne3! fe3 32.Qg3 ef2 33.Kf2 Qf5?? 34.b7 e3 35.Re3 Qc2 36.Kf3 (36.Kf3 Qf5 37.Ke2 Qc2 38.Kf1 Qb1 39.Kf2 Qc2 40.Kg1 Qb1 41.Re1 Qb7 42.Qg6 Qg7 43.Qe6 Qf7 44.Qf7 Kf7 45.Re5+-) 1–0. Pakleza,Zbigniew – Olszewski,Michal, Poland–ch Warsaw Poland, 2010.

12.Nd5 N6h7 (12...Nd5 13.cd5 Nd7 14.Qc2+=) 13.b5 h4 14.a4 c6 15.Nc3 Bf5 16.a5 a6 17.bc6 bc6 18.Qa4 Qd7 19.Ba3 (19.Rab1 h3+=) 19...c5= 20.Nb3 Rab8 21.Rab1 Qc8= 22.Bb2 cd4=+ 23.Nd4 Bd4 24.ed4 e3 25.fe3 Bb1 26.Rb1 Re3 27.Qc2 Qf5-+ (27...Qf5 28.Rc1 Qc2 29.Rc2 Rb2 30.Rb2 Rc3-+) 0–1. Vlahov,D (2235) – Cebalo,M (2490), TCh–CRO Gp1A, 2010.

12.Nf1 a5 13.b5+=.

12.Nf1 N8h7 13.f3 (13.Qc2 h4+=) 13...ef3= 14.Bf3 Ng5 15.Be2 (15.b5 a6=) 15...Bg4 (15...Qe7 16.Bd3=) 16.Bg4 Ng4 Exerts pressure on the backward pawn 17.h3 (17.Rb1 Nf6=) 17...Nf6 18.Qc2 (18.Qd3 Nfe4=) 18...d5 (18...c6 19.a3=) 19.Nd2 (19.cd5 Nd5 20.Nd5 Qd5=+) 19...c6 20.b5 (20.a3 Qd6 21.cd5 Nd5 22.Nd5 cd5=+) 20...cb5=+ 21.Nb5 Qd7 (21...a6 22.Nc3=+) 22.Ba3 (22.Rac1 Nge4 23.Ne4 Ne4= (worse 23...de4 24.Qf2+=)) 22...Nfe4 23.Ne4 Ne4 (worse 23...de4 24.Rf1+=; worse 23...Re4 24.Nc3+-) 24.Rab1 (24.Nc3 Nc3 25.Qc3 Re4=+) 24...dc4–/+ 25.Nc3 (25.Qc4 Nd2 26.Qc7 Qc7 27.Nc7 Nb1 28.Rb1 Re3-+) 25...Nc3 26.Qc3 Rac8 27.Bb2 (27.Rbd1 f5–/+) 27...Re4 28.Rbc1 (28.a4 Qa4 29.Bc1 Qd7-+) 28...Qd5 29.Rf1 (29.a4 f5-+) 29...a5 (29...Bh6 30.Rf3-+) 30.Rf3 (30.a4 f5-+) 30...b6 (30...b5 31.Qa5 Ra8 32.Qc3 Ra2 33.Ra1 Ra1 34.Ba1-+) 31.Rcf1 (31.a4 Qc6 32.Ra1 h4–/+) 31...Rc7 (31...f5 32.a4-+) 32.Kh1 (32.a4 Qc6–/+) 32...Bf8 (32...f5 33.Rc1–/+) 33.a3-+ Bg7 (33...f5 34.Kg1-+) 34.Qc2 (34.a4 Qc6 35.Ra1 f5–/+) 34...Qe6 (34...b5 35.Bc3-+) 35.Bc3 (35.Qc3 f5–/+) 35...Re3-+ 36.d5 (36.Re3 Qe3 37.Qb2-+) 36...Qe4 37.Qe4 (37.Qc1 Rc3 38.Rc3 Bc3 39.Qc3 Qd5-+) 37...Re4 38.Bg7 (38.a4 Bc3 39.Rc3 Rd4-+) 38...Kg7 39.Rf6 (39.Rd1 b5-+) 39...Rd4 40.Rb6 (40.d6 Rd7 41.R6f4 R7d6 42.Rf7 Kh6-+) 40...Rd5 (better 40...c3 41.d6 Rc5-+) 41.Ra6 (41.Rb2-+) 41...c3 42.Rc1 (42.Kh2 c2 43.Rc1 Rd1-+) 42...c2 43.Kh2 Rd1 (43...Rd1 44.Ra7 Ra7 45.Rc2 Rd3-+) 0–1. Arata,Roberto Mario (2255) – Agrest,Evgenij (2585), Benidorm ESP, Open Bali Master, 2009. (=1.d4 d6 2.c4 e5 3.e3 Nd7 4.Nc3 g6 5.Nf3 Bg7 6.Be2 Ngf6 7.0-0 0-0 8.b4 Re8 9.Bb2 e4 10.Nd2 Nf8 11.Re1 h5)

12.f3 a5 13.b5 Bh6 14.Nde4 Be3 15.Kh1+=.

12.f4 ef3 (-->12.f3 ef3).

12.h3 Bf5 13.f3 Bh6 14.Bf1 (better is 14.f4!? h4 15.Nb3+=) 14...N8h7 0–1. Cavadini,Ignacio (2060) – Gomez,Carlos David (2165), Villa Martelli ARG, Team Ch, 2014.

13.Bf3+/- Ng4 14.Nf1 Ne6 15.Bg4 hg4 16.Qg4 (16.Ng3 Qg5+=) 16...Nd4= 17.Qd1 (17.Qd4 Bd4) 17...Nc6 18.b5 (18.a3 a5 19.b5 Ne5=+) 18...Ne5 19.Nd5 c6 20.Nf4 Nc4 21.Bg7 Kg7 22.Qd4 Ne5 23.bc6 bc6 24.Rad1 Bg4 25.Rd2 Qb6 (25...c5 26.Qd5–/+) 26.Rc1 (26.Qd6 Nc4 27.Qd4 Qd4 28.Rd4 Ne5=+) 26...d5 (26...g5!? 27.Rb2 Qd4 (27...gf4? 28.Rb6 ab6 29.ef4+-) 28.ed4 gf4 29.de5 de5 30.Rc6 Rad8-+) 27.h3 Bf5 28.Ng3 Qd4 29.ed4 Nc4 30.Nf5 gf5 31.Re2 Kf8 32.Rf1? Re3 33.Re3= Ne3 34.Rc1 Nc4 35.Re1 Rb8=+ 36.Nd3 Rb6 37.Rf1 Ra6 38.Nb4 Rb6 39.Nd3 Ne3 40.Rc1 f6=+ 41.Kf2 Nc4 42.h4 Kf7 43.h5 Rb8 44.Rh1= a5 45.h6+= Rh8 46.Nf4 Nd6 47.Rc1 Rc8 48.Kf3 Nc4 49.h7 Kg7 50.Rh1= Re8 51.Nh5 Kf7 52.Nf6 Rh8= 53.Nd7 Kg7 54.Kf4 Rh7 55.Rh7 Kh7 56.Kf5 a4 57.Nb8 Na5 58.g4 ½–½. Bulcourf,Carlos (2185) – Paglilla,Carlos (2400), Buenos Aires op, 1995.

13.Bf3 Ng4 14.Nf1 Qh4 15.g3 Qd8 16.Rc1 Bh6 17.Nd5 Nh7 18.Nf4 Ng5 19.Rc2 Bf5 20.Bb7 Bc2 21.Qc2 Rb8 22.Bd5 Kg7 23.h4 Ne6 24.Be6 Bf4 25.Bg4 Bg3 26.Ng3 Qh4 27.d5 Kf8 28.Kg2 Qg4 29.Qc3 Re5 30.Qd4 Qd4 31.Bd4 Rg5 32.Kh3 Rb4 33.Bf6 Rg4 34.e4 Rf4 35.e5 Rbc4 36.ed6 cd6 37.Bg5 Rf3 38.Be7 Kg7 39.Kg2 Rd3 40.Bd6 Rd5 41.Be5 f6 42.Ba1 Rc2 43.Kf1 Kf7 0–1. Kanani – Walker, Toronto 1992.

13.Bf3 h4 14.Nf1 (14.Nde4 Ne4 15.Ne4 Be6+=) 14...h3 15.Qd2 N8h7 16.e4 hg2 17.Qg2 c5 18.bc5 dc5 19.d5 (19.dc5!? Nd7 20.Nd5=) 19...Nd7=+ 20.Nb5 (20.Nd1 Ne5 21.Be2 Qd6=) 20...Ne5 21.d6?? (better 21.Be2=+) 21...Nf3-+ 22.Qf3 Bb2 23.Rab1 Ng5 (23...Ng5 24.Qb3 Bd4 25.Nd4 cd4-+) 0-1. Arifars17 (2535) - darkghoul (2710), Lichess Mega Team Battle, lichess.org, 2021. (=1.e3 Nf6 2.d4 g6 3.c4 Bg7 4.Nf3 0-0 5.Be2 d6 6.0-0 Nbd7 7.b4 e5 8.Bb2 e4 9.Nfd2 Re8 10.Nc3 Nf8)

13.Bf3 N8h7 14.b5 Ng5 15.h3 Bh6 16.e4 Bh3 17.e5 de5 18.Bb7 Qd4 19.Kh1 Ng4 20.Nde4 Ne4 21.Qd4 Ng3 22.Kg1 ed4 0–1. Parzer – Teuschler, corr Austria 1982.

13.Bf3 N8h7 14.Nde4 Bg4 15.Nf6 Nf6 16.b5 (16.a3 c5+=) ½–½. Mikhalchishin,Adrian – Reinderman,Dimitri, Groningen, 1992.

9.a4 a5 10.b5 Re8 11.Re1 c5 12.Nc3 e4 13.Nd2 Nb6 14.dc5 dc5 15.h3 Rd8 16.Qc2 Pawn e4, live or die! 16...h5 (16...h6 17.Rad1=) 17.Rad1 Bf5 18.Ba3 (18.Nb3 Nfd7+=) 18...h4 (18...Qe5 19.Rf1=) 19.Nb3+= Rdc8 20.Nd4 (20.Rd2 Qe5+=) 20...Bd7= 21.Bf1 (21.Rc1 Qe5 22.Nb3 Bf5=) 21...Nfd5?? (better 21...Qe5=) 22.Nd5+- (22.Nd5 Nd5 23.cd5+-) 1–0. Cirulis,Ilmars (1970) – Duttagupta,Aniruddha (1920), FICGS, 2016.

9.a4 Re8 10.Nc3 c6 11.a5 a6 12.Re1 e4 13.Nd2 d5 14.cd5 cd5 15.Qb3 Qd6 16.b5 Nf8 17.Ba3 Qd8 18.ba6 ba6 19.Reb1 Re6 20.Na4 Qa5 21.Bf8 Bf8 22.Nc5 Qd8 23.Ne6 fe6 24.Qb6 Qe8? (better is 24...Qb6 25.Rb6 a5+/-) 25.Ba6+- Nd7 26.Qc6 Ba6 27.Ra6 Ra6 28.Qa6 Nf6 29.Rb6 Qf7 30.Qc8 (30.Re6?! Ng4 31.f3 Bh6 32.fg4 Be3 33.Kh1 Bd2+-) 30...Ne8 31.Qe6 Qe6 32.Re6 Kf7 33.Ra6 Nd6 34.Nb1 Nc4 (34...Ne8+-) 35.Nc3 Bd6 36.Nd5 Ke6 37.Nc3 Kf5 (37...Nd2 38.h4 h6 39.Nb5+-) 38.Rc6 1–0. Wavresky,Pierre (2060) – Demarre,Jacques (2295), Issy Meudon schev, 1991. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

9.Nc3+= c5 10.a3=.

9.Nc3 c6 10.a4 Re8 11.a5 Nf8 12.d5 cd5 13.cd5 Bg4 14.Nd2 h5 15.Rc1 Rac8 16.a6 ba6 17.f3+/- Bd7 18.Ba6 Rc3 19.Rc3 Nd5= 20.Ra3 Nb4 21.Be2 Be6 22.Qa4 Rb8 23.Ba1 d5 24.Rc1 d4 25.ed4 ed4 26.Ne4 Bd5 27.Bf1 Be4 28.fe4= Qe4 29.Qa7 Rb7 30.Qc5 Ne6 31.Qc8= Kh7 32.Rf3 Ng5 33.Rf2 Qe3 34.Qb7+/- Ne4 35.Qf7 Nf2 36.Qf2 Qc1+= ½–½. Mamedyarov,S (2645) – Radjabov,T (2670), Presidents Cup, Baku AZE, 2005. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.0-0)

9.Nc3 c6 10.a4 Re8 11.Qb3 Nf8 12.a5 ed4 13.ed4 Bf5 14.Rfe1 Qc7 (14...Ne6 15.a6 Nf4 16.c5=) 15.Nd1 (15.d5 Ne4 16.Ne4 Bb2 17.Qb2 Re4+/-) 15...Rad8 (15...Ne6!?=) 16.Ne3+= Bc8 17.b5 Ng4 18.Nf1 (18.b6 Qb8+=) 18...Nd7 (18...Ne6 19.b6 Qb8 20.g3+=) 19.Ng5 Nh6 (19...h6!? 20.Nf3 Ngf6+=) 20.Ne3+/- Nf6 21.Bf3 (21.b6 Qb8+/-) 21...Nf5 22.a6 Ne3 (22...Nh4 23.Be2 ba6 24.Bc3=) 23.ab7 (23.Re3!? Re3 24.fe3 (24.Qe3?! Re8 25.Qd2 d5=) 24...ba6 25.bc6+=) 23...Bb7+= 24.fe3 Ra8 25.bc6 (25.Ra7! Ra7 26.b6+/-) 25...Bc6= 26.d5 Bd7 27.Bd4 h6 28.Nh3 Bh3 29.gh3 Nd7 30.Rec1 (30.Qa4 Rec8+=) 30...Nc5 31.Qc3 Be5 32.Ra5? (better is 32.Qa3+=) 32...Nb3!!-+ 33.Ra6?! (33.Qb3 Qa5 Deflection) 33...Nc1 34.Qc1 (34.Be5 Re5 (34...de5?! 35.Qc1 e4 36.Be2-+) 35.Qc1 Rb8-+) 34...Qe7 (better is 34...Qc8!? 35.Ra2 Qh3 36.Qd1-+) 35.c5?? (35.Qc3 Qh4 36.Kg2-+) 35...Qg5 (35...Qg5 36.Kh1 Bd4-+) 0–1. Milin,Dragan (2020) – Velickovic,Sasa (2370), Beograd SER, 2014. (=1.d4 Nf6 2.e3 g6 3.Nf3 Bg7 4.b4 0-0 5.c4 d6 6.Be2 Nbd7 7.0-0 e5 8.Bb2 Qe7)

9.Nc3 c6 10.a4 Ne8 11.Qb3 (11.a5 Nef6+=) 11...f5 (11...Nef6 12.a5+=) 12.de5 (12.Rfd1 e4 13.Nd2 Qh4+=) 12...de5 (12...Ne5 13.Rfd1+=) 13.c5 Kh8 14.e4 (14.a5 Nc7+=) 14...Ndf6 (14...a5 15.Ba3=) 15.ef5+= gf5 (15...Bf5 16.Rfe1+=) 16.Bc4 (16.Rfd1 a5+=) 16...e4 (16...a5 17.Rfd1+=) 17.Rfe1 (17.Ng5 Nd5 18.Nh3 Nc3 19.Bc3 f4 20.Bg7 Ng7=+) 17...Nc7 (17...a5 18.Rad1+=) 18.Rad1 (18.a5 Be6 19.Ne5 Nfd5 20.Nd5 cd5=) 18...Be6 (18...a5 19.ba5 Nd7 20.Ba3=) 19.Be6 (19.Nd4 Bc4 20.Qc4 Ng4+=) 19...Ne6 20.Rd6 (20.Ne2 Rad8 21.Rd8 Nd8+=) 20...Rae8 (20...Nf4 21.Qd1=) 21.Ne5+= Nd4 22.Rd4 Qe5 23.Ne2 Nd5 (23...Ng4 24.g3=) 24.Ng3 (24.Rd2 Qe7+=) 24...Qe6 (24...e3 25.f4 Qe7 26.Rc4=) 25.Rdd1 Bb2 26.Qb2 Qe5 27.Qd4 (27.Qd2 Rg8=) 27...Qd4 28.Rd4 Kg7 (28...e3 29.fe3 f4 30.Ne4 fe3 31.Nd6=) 29.b5 (29.Red1 Kf6=) 29...Kg6 (29...Re5 30.f3 e3 31.f4=) 30.Nf1 (30.Red1 Re5 31.Ne2 f4=) 30...Re5=+ 31.g3 ½–½. Naumenko,Oleg (2095) – Sheynin,Izrail (2115), St. Petersburg RUS, Spring Open, 2011.

9.Nc3 c6 (draw was agreed here!) 10.Qb3 Kh8 11.c5 d5 12.h3 ed4 13.ed4 Ne4 14.Rfe1 Ndf6 15.Ne5 Be6 ½–½. Potrykus,Dierk – Krueger,Wolfgang, Schleswig Holstein–ch, 1992.

9.Nc3 ed4 10.Nd4 Ne5 11.Qb3 Bg4 12.f3 Bd7 13.e4 Nh5 14.Nd5 Qd8 15.g3 Kh8 16.Rad1 Bh3 17.Rfe1 c6 18.Ne3 Qg5 19.Kf2 f5? (better is 19...a5=) 20.Ne6 Qf6 21.Ng7 Ng7 22.f4 fe4 23.c5 (better is 23.Kg1+-) 23...g5+/- 24.Rd6 Be6 (24...Qe7 25.Nc4 Ng6 26.Bf3 gf4 27.Re4+/- (worse is 27.Be4 fg3 28.Ke3 Rae8–/+)) 25.Re6 (25.Ng4! Ng4 26.Bg4 Qf4 27.gf4 Rf4 28.Qf3 Bg4 29.Qf4 gf4 30.Re4+-) 25...Ne6+/- 26.Kg1 Nf4 27.gf4 gf4 28.Ng4 Rg8 29.Kh1 Rg4 30.Bg4 e3 (30...f3 31.Qe6 (31.Re4?? f2 32.Qe3 f1Q 33.Qg1 Qg1 34.Kg1 Nf3 35.Bf3 Qb2-+) 31...Qe6 32.Be6+-) 31.Qe6 Qe6 32.Be6 h5 (32...Kg7 33.Be5 Kf8 34.Bf4+-) 33.Be5 (33.Be5 Kh7 34.Rg1 Rf8 35.Bc4 Rc8 36.Bd3 Kh6 37.Bf4) 1–0. Amann,Harald (2015) – Kalcher,Mathias (1820), AUT–chT, 1996. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.d4 Qe7)

9.Nc3 e4 10.Nd2 c6 (10...Re8 11.Qc2+=) 11.Qb3 Re8 12.a4 Nf8 (12...a5 13.b5+=) 13.Rfd1 h5 14.d5 (14.b5 h4+=) 14...Bf5 15.a5 (15.Rac1 N8d7+=) 15...a6 (15...Rec8 16.a6+/-) 16.dc6 bc6 17.b5 N8d7 (17...Rab8 18.Qa3+=) 18.b6 (18.bc6 Reb8 19.Qc2 Ne5+=) 18...Nc5 19.Qa3 (19.Qc2 Nd3+=) 19...Ng4 20.h3 (20.Rdb1 Qh4 21.Bg4 Bg4+=) 20...Ne5 21.Na4 (21.Rab1 Qg5 22.Kh2 Qh4=) 21...Na4 (21...Nb7 22.c5 d5 23.Qb4+=) 22.Qa4+/- Qg5 (22...Nf3 23.Nf3 ef3 24.Bf3 Bb2+/-) 23.h4 (better is 23.Kf1!?+/-) 23...Qh4= 24.Rab1 Bg4 25.g3 Qh3 26.Bf1? (26.Bg4 Ng4 27.Nf1 Bb2 28.Qc2-+) 26...Bd1-+ 27.Rd1 Qg4 28.Be5 Be5 29.Bg2 f5-+ 30.Rb1 h4 31.b7 Rab8 32.gh4 f4 33.ef4–/+ Bf4 34.Nf1 Qd7 35.Rb6 Rb7-+ 36.Ra6 c5 37.Qc2? Qf5 38.Rc6 Qe5 39.Qe2 Rb2 40.Qg4 Qf5 41.Bh3 Qg4 42.Bg4 e3 43.fe3 Be3 44.Kh1 Bf4 45.Bf3 Re1 46.Bg2 Ra1 0–1. Lorne,M (2090) – Pitterson,J (2240), JNBS UWI Masters, Kingston JAM, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.0-0)

9.Nc3 e4 10.Nd2 Re8 11.Qb3 h5 12.c5+/- Nf8 13.cd6 cd6 14.Rac1 a6 (14...Bg4 15.Bg4 hg4 16.Rc2+/-) 15.b5 (15.Nd5 Nd5 16.Qd5 Bg4 17.Bg4 hg4+/-) 15...Be6 16.Bc4 (16.Nc4 Rec8+/-) 16...h4 (16...N8d7 17.b6=) 17.Be6 Ne6 18.Nce4 Ne4 19.Ne4 h3 20.Ng3 hg2 21.Kg2 ab5 22.a3 Qd7 23.Qd5 Ra4 24.Ne4 Attacking the isolated pawn on d6 24...Rd8 25.Nc3?? The isolani on b5 becomes a target (better is 25.f4=) 25...Rd4!-+ 26.Qb5 (26.ed4 Nf4 Double attack) 26...Rg4 27.Kf3 Ng5 28.Ke2 Qb5 29.Nb5 Bb2 30.Rc2 Bf6 31.Rc7 Ne6 (31...d5 32.Rb7 Rg2 33.Rc7-+) 32.Rb7 d5 33.Rd1 (33.Kf3 Rc4-+) 33...d4 (33...Rh4 34.Rh1-+) 34.Rb6 (34.Nd4 Nd4 35.ed4 Rf4-+) 34...de3 35.fe3 Rg2 36.Kf3 Rh2 37.Rc1 (37.Rd8 Bd8 38.Rb8-+) 37...Rdd2 (37...Ng5 38.Kf4 Rh4 39.Kg3 Ne4 40.Kf3 Rd2 41.Rb8 Kg7 42.Rg8 Kg8 43.Rc8 Kg7 44.Rg8 Kg8 45.Nd4 Rf2) 38.Rf1 (38.Rc8 Kg7 39.Re6 fe6 40.Nc7-+) 38...Ng5 39.Kf4 Rh4 40.Kg3 Ne4 41.Kf3 Rb2 (41...Be5 42.Rb8 Bb8 43.Nc7 Bc7 44.Rb1 Ng5) 42.a4 (42.Rf6 Nf6 43.Nd6 Rh3 44.Kf4-+) 42...Nd2 0–1. Capel,Evan Timothy (2095) – Nitin,S (2345), Penang MAS, 6th Open, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 Qe7)

9.Nc3+= Re8 10.Qb3 e4 (10...a5 11.a3=) 11.Nd2 Nf8 (11...a5 12.a3+=) 12.b5 (12.Rae1 c5+=) 12...h5 (12...Bf5 13.Qd1+=) 13.a4 (13.Rae1 a6+=) 13...Bg4 (13...h4 14.h3+=) 14.a5 (14.Bg4 hg4 15.a5 a6+/-) 14...N8h7 (14...Be2 15.Ne2 a6 16.Nc3+=) 15.b6 (15.Bg4 hg4 16.a6 Rab8+/-) 15...ab6 (15...Be2 16.Ne2 h4 17.Nf4+=) 16.ab6 (16.Bg4 Ng4 17.ab6 Ra1 18.Ba1 Nhf6+/-) 16...c6 (16...Be2 17.Ne2 h4 18.Nf4+/-) 17.d5 (17.Bg4 Ra1 18.Ra1 hg4+/-) 17...c5 (17...Be2!? 18.Ne2 h4+=) 18.Bg4+/- hg4 19.Nb5 Rab8 (19...Reb8 20.Nc7 Ra1 21.Ra1+/-) 20.Nc7 (20.Ra7 Ra8+-) 20...Rec8+/- 21.Ra7 Ng5 22.Qd1 Qd7 23.Kh1 Qf5+/- 24.Qa1 Kh7 25.Nb5 Rd8 26.Qb1 Rd7 27.f4 gf3= 28.gf3 Qh3 29.Bf6 ef3 30.Rf2 Bf6 31.Qf1 Qh6 32.Nf3 Ne4+= 33.Rg2 Kg7 34.Nd2 Nd2 35.Rd2 Re8 36.Rf2= Qh4 37.Nc7 Re3+= 38.Rf4 Re1 39.Rh4= Rf1 40.Kg2 Rb1?? 41.Ne8+- Kf8 42.Nf6 Re7 43.Ra8 Kg7 44.Ne8 Kg8 45.Nd6 Kg7 46.Ne8 Kg8 47.Re4 Re4 48.Nf6 Kg7 49.Ne4 f5 50.Nc5 Rb6 51.Rb8 Rb2 52.Kf3 Rd2 53.Ke3 Rd1 54.Ke2 Rh1 55.d6 Rh2 56.Kf3 (56.Kf3 Rd2 57.d7+-) 1–0. Remling,Christian (2310) – Zoler,Dan (2465), Biel op MTO, 1997.

9.Nc3 Re8 10.Nb5 Qd8 11.de5+= Ng4? (better is 11...de5 12.Ne5 a6 13.Nd7 Bd7+= 14.Nd4 Qe7 15.Qb3 Bg4 16.Bd3 b6 17.b5+/- 1.03; 11...Ne4 12.Bd3 Ne5 13.Be4 Nf3 14.Qf3 Bb2 15.Rab1 Be5 16.Bb7 Qh4 17.h3+= 0.44) 12.ed6+- Bb2 13.Rb1 cd6? (better is 13...Bf6 14.Nc7 Rb8 15.Ne8 Qe8+-) 14.Rb2 Ndf6 (14...a5 15.Nd6 Re7 16.Qd4+-) 15.Nd6 Re7 16.h3 Ne5 17.Ne5 Re5 18.Bf3 Qc7 (18...Ne8 19.Nb7 Bb7 20.Bb7+-) 19.Qd4 Re6 20.Rd1 Rb8 21.Nb5 (21.Nb5 Qe5 22.Rbd2 Qd4 23.Rd4+- (23.Nd4?! Ne4+-; 23.ed4?! Kg7+-)) 1–0. Slavin,A (2330) – Peat,M (2090), Uxbridge Congress Open, Uxbridge ENG, 2009. (=1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.b4 0-0 5.e3 d6 6.Bb2 Nbd7 7.Be2 e5 8.0-0)

9.Nc3 Re8 10.Re1 h5 (10...c6 11.Qb3=) 11.a4 (11.c5 dc5 12.bc5 c6+-) 11...e4+= 12.Nd2 (12.Ng5 a5 13.b5 h4=) 12...Nf8 (12...a5 13.ba5 Ra5 14.Nb5=) 13.a5 (13.h3 a5 14.b5 N8d7+=) 13...a6 14.b5 (14.Qc2 Bg4+=) 14...N8h7 (14...Bg4 15.h3 Be2 16.Re2=) 15.Nb3 (15.b6 c6=) 15...Bg4 16.c5 (16.h3 Be2 17.Qe2 h4=) 16...d5 (16...ab5!? 17.cd6 cd6 18.Nb5 Qd7=) 17.c6+= bc6 18.bc6 (better 18.Ba3!? Qd8 19.ba6+=) 18...Qe6= 19.Nc5 Attacks the isolani on a6 (better 19.Rc1=) 19...Qf5 (19...Qc6!? 20.h3 Be2 21.Qe2 Bf8=+) 20.Bg4 (20.h3 Bh3 21.gh3 Ng5–/+) 20...hg4 21.Ne2 (21.Qe2 Ng5 22.Ba3= (22.Na6? Nf3 23.gf3 gf3-+)) 21...Qh5 (21...Ng5 22.Ng3 Qc8 23.Qa4+=) 22.Nf4 (22.Ng3 Qh4+-) 22...Qh4 (22...Qf5 23.Rb1+=) 23.Nd7 (23.Ba3 Ng5 24.Qe2 Red8+-) 23...Red8 (23...g5 24.Ne2 Nd7 25.cd7 Red8+-) 24.Nf6 (better 24.Ne5!?+=) 24...Nf6=+ 25.Ba3 Bf8 26.Bf8 Kf8 27.f3?? (better 27.Rb1=) 27...g5-+ 28.g3 Qh6 29.fg4 gf4 30.ef4 Qh3 31.g5 Ng4 32.Ra2 (32.Qc2 Rab8-+) 32...Rab8 33.Qc2 (33.f5 Kg8-+) 33...Kg7 34.f5 (34.Re2 Rh8 35.Qd1 Rb4-+) 34...Rh8 35.Qd2 (35.Qg2-+) 35...Rb3 36.Qg2 Nh2! 37.Qh2 (37.Qh3 Nf3 38.Kg2 Ne1 39.Kh2 Nf3 40.Kg2 Rh3 41.Kh3-+) 37...Rg3 (37...Rg3 38.Kh1 Qg4 39.f6 Kg8 40.Qh8 Kh8 41.Rh2 Kg8 42.Rf1 e3 43.Rh8 Kh8 44.Rf2 ef2 45.g6 Rh3) 0–1. Philippe,Guillaume (2315) – Kerigan,Demre (2315), WWRR, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 Nbd7 6.c4 0-0 7.Be2 e5 8.0-0 Qe7)

9.Nbd2 e4+= 10.Ne1 h5 11.Qb3 Re8 (11...Nb6 12.h3= (12.f3 Re8 13.Nc2 Bf5 14.Rac1 a5 15.b5 a4 16.Qa3= 0.19) 12...a5 13.b5 a4 14.Qc3 Bf5 15.Nc2 Qe6 16.d5+= 0.34; 11...a5 12.a3 Re8 13.Nc2 a4 14.Qc3 h4 15.f3 h3 16.gh3+= 0.56) 12.Nc2 Nf8 (12...Nb6 13.a4 (13.h3= a5 14.a3 Bd7 15.Rfc1 a4 16.Qc3+= 0.41) 13...a5 14.ba5 Ra5 15.Bc3 Ra7 16.a5+= 0.53; 12...h4 13.f3 h3 14.gh3 ef3 15.Bf3 Qe6 16.Bg2+= 0.59) 13.Rfe1 (13.h3 a5+= 14.Qa4 N6d7 15.f3 ef3 16.Rf3+= 0.28; 13.a3 h4 14.h3 Bd7 15.Rac1 a6 16.Rfd1+= 0.56) 13...N8h7 (13...Bg4= 14.Bg4 Ng4 15.Ne4 Qh4 16.h3+= 0.28) 14.f4 (better is 14.d5!?= h4 15.h3 a5 16.a3+= 0.47; 14.Red1 Ng5 15.a4 a5 16.b5+= 0.44) 14...ef3+= (14...Bg4 15.Bg4 Ng4 16.Rf1+= 0.44) 15.Bf3 Bh6 (15...Ng5 16.e4+= 0.28) 16.Qc3 (16.d5= 0.25) 16...Bg7 (16...Ng5!?+=) 17.e4 Nd7 (17...Ng5 18.e5 de5 19.Re5 Nf3 20.Nf3=) 18.b5 (18.Ne3 Ng5+=) 18...Ng5= 19.Nb4 Ne6 (19...Nb6 20.Bd1=) 20.Nb3 (20.Qe3 Nb6 21.Nd5 Qd8=) 20...Qg5 (better is 20...Nb6+=) 21.Qe3 (better is 21.Bc1 Qh4 22.Be3+=) 21...Qe3–/+ 22.Re3 Ndc5 23.Rd1= a5 24.Nd5 Na4 25.Ba1 c6–/+ 26.bc6 bc6 27.Nc3 Nb6 28.c5 Nc4 29.Red3 a4 30.Nc1 dc5-+ 31.dc5 Ne5 32.R3d2 Nc5 33.Rd8 Be6 34.Re8 Re8 35.N1e2 Bg4 36.Bg4 Ng4 37.Nd4?? Rd8 38.Nce2 Ne6 39.Rd2 c5 40.h3 Ne3 0–1. Jaksin,Oleg – Belenov,D (2380), Open, Vladimir RUS, 2004.

9.Re1 Re8 10.Qb3 e4 11.Nfd2 h5 12.Nc3 Nf8 13.Nd5 Qd8 14.Nf6 Bf6 15.a4 Bf5 16.a5 h4 17.Rec1 Bg7 18.b5 Ne6 19.Qc2 Nd4 20.ed4 e3 21.Bd3 ed2 22.Qd2 Bd3 23.Qd3 Qe7 24.Bc3 Qe2 25.Qe2 Re2 26.Kf1 Re4 27.Re1 Rae8 28.Re4 Re4 29.Re1 Re1 30.Ke1 a6 31.Kd2 c6 32.bc6 bc6 33.d5 ½–½. Svitek,Volker (2130) – Sehrt,Juergen (2235), Hessenliga, 2008.

9.de5 de5 10.Qb3 b6 11.Nc3 Bb7 12.Rac1 e4 13.Nd2 Ne5 14.Na4 (14.Rfd1) 14...Rfd8 15.Rc2 h5 16.Rd1 h4! 17.Nf1 Nf3! 18.Kh1 Rd1 19.Bd1 Qd7 20.Re2 Rd8 21.Bc2 h3! 22.gf3 Qf5 23.Nd2 Rd2 0–1. Berlacki – Myers, Florenz 1976 (Myers).

9.de5 de5 10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 b6 14.Nc3 Nc5 15.Qc2 Bb7 16.Bb2 Ra8 17.h3 Ne8 18.Rd1 e4 19.Nd4 Qg5 20.Nc6 Bc6+= 21.bc6 Qf6 22.Bg4 Qc6–/+ 23.f3?? f5-+ 24.fe4 fg4 25.Nd5 Qe6 26.Bg7 Kg7 27.Qc3 Kg8 28.e5 gh3 29.Nf4 Qg4 30.Qd4 Ne6 31.Qd5 Rd8 32.Qd8 Nd8 33.Rd8 Qg3 (33...Qg3 34.Kh1 hg2 35.Ng2 Qe5-+) 0–1. emeryt85 – acermax (1635), kurnik, 2011.

9.a3 ed4 10.Nd4 c5 11.Nb5 Ne5? (better is 11...Re6!?+=) 12.bc5+- Ne4 13.Qd5 (13.cd6 Re6 14.N1c3 Nc3 15.Bc3 a6+-) 13...Nc5 (13...Nf6 14.Qd6 Ne4 15.Qd5+-) 14.Nd6+- (14.Qd6?! b6+=) 14...Re6 15.Nf5 gf5?? (better is 15...Qb6 16.Ng7 Qb2 17.Ne6 Be6 18.Qc5 Qa1+-) 16.Qd8 (16.Qd8 Bf8 17.Rd1+-; 16.Qc5 Nd7 17.Qf5 Bb2–/+) 1–0. tellymetwise – anlashok (1915), net–chess.com, 2004.

9.a4 e4 10.Nfd2 Nf8 11.b5 h5 12.Nc3 Bf5 13.Nb3 N8h7 14.c5 d5 15.Bc1 Ng5 16.f4 (16.Na5!? Qc8 17.c6+=) 16...ef3= 17.Bf3 Bg4 18.Re1 (18.Bg4 Ng4 19.Qd3 c6=) 18...Qd7 19.Nd2 Rad8 20.Nf1 Bf3 21.gf3 Qh3 22.f4?? (better is 22.Kf2+=) 22...Nf3-+ 23.Kf2 (23.Kh1 Ne1 24.Qe1 Qf3 25.Kg1 Qf4 26.Qe2-+ (26.ef4?? Re1 27.Bb2 Ra1 28.Ba1 Ne4-+)) 23...Ng4 24.Ke2 Ne1 (better is 24...Nd4 25.Qd4 Bd4-+) 25.Qe1 (25.Ke1 Nh2 26.Nh2 Qh2 27.Ne2-+) 25...Bd4 26.Kd3 Bc3 27.Qc3 (27.Kc3 d4 28.Kb4 Ne3 29.Be3 de3 30.Qe2-+) 27...d4 28.Qe1 de3 29.Kc4 Re4 30.Kc3 e2 (30...e2 31.Ng3 Rd1-+) 0–1. carocan (1700) – johnny75 (1760), kurnik, 2011.

9.Qb3 a5 10.b5 Kh8 (10...a4 11.Qa3=) 11.a4 (11.c5 A) 11...dc5? 12.Ng5 (12.de5?! Ng4=; 12.Ne5?! Ne5 13.de5 Nd7=) 12...Rf8 13.Nf7 Rf7 14.Qf7+-; B) 11...ed4 12.Ng5 Rf8 13.cd6 Kg8 14.dc7 Qc7+/-) 11...Qe7 (11...ed4 12.Bd4 Nc5 13.Bc5 dc5 14.Nc3=) 12.Re1 Ne4 13.Nc3 Nc3 14.Bc3 f5 15.Rad1 Nf6? (better is 15...e4!? 16.Nd2 Nb6+=) 16.de5+- de5 17.Be5 (worse is 17.Ne5 Ne4 18.f4 Nc3 19.Qc3 Be5 20.fe5 Qe5 21.Qe5 Re5 22.Rd8 Kg7+/-) 17...Be6 18.Qb2 Ng4 (18...Ne4 19.Bg7 Qg7 20.Rd4+/-) 19.Bg7 Qg7 20.Qg7 Kg7 21.h3 Nf6 22.Ng5 Bg8+/- 23.Rd4 h6 24.Nf3 Rad8 25.Red1 Rd4 26.Rd4 Be6 27.Ne5 Bc8 28.Nd3 Ne4 29.Bf3 b6 30.g4 Nc3 31.c5 g5 32.Rc4 Ne4 33.cb6 cb6 34.Rc7 Kf8 35.Rh7 fg4? 36.hg4 Nf6+/- 37.Rh6 Kg7 38.Rh3 Bg4 39.Bg4 Ng4 40.Rg3 Re4 41.Nf4! Ra4 42.Rg4 Kh6= 43.Kg2 gf4 44.ef4 ½–½. pumpkin (2325) – waldokitty (2165), net–chess.com, 2009. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.d4 0-0 6.Be2 Nbd7 7.c4 e5 8.0-0)

9.Qc2 a5 10.b5 ed4 11.Nd4 a4 12.Nd2 Qe7 13.a3 Nc5 14.Rad1 Ng4 15.N2f3 Nf6 16.Ne1=.

9.Qc2 ed4= 10.Nd4 a5 (10...Qe7 11.a3= a5 12.Nc3 Nb6 13.b5 Bg4 14.Rad1 Be2 15.Nce2 Qe5 16.Nf4= 0.19; 10...Ne5 11.Rd1 Qe7 12.c5 dc5 13.Qc5 Qc5 14.bc5 Bg4 15.f3 Bd7 16.Nc3= 0.13) 11.a3 Ne5 (11...ab4 12.ab4 Ra1 13.Ba1 Ne5 14.Rd1 Bg4 15.Nc3 Be2 16.Qe2= 0.16) 12.Nd2 (12.Rd1 ab4 13.ab4 Ra1 14.Ba1 Bg4= (14...Qe7 15.Bb2 Bg4 16.Bg4= 0.13) 15.f3 Bd7 16.e4= 0.00) 12...Bd7 (12...Bg4 13.N2f3= Qe7 14.Rfd1 Nf3 15.Bf3 Bf3 16.Nf3= 0.09; 12...Qe7 13.c5 dc5 14.bc5 Bg4 15.Bg4 Nfg4 16.Rab1= 0.16) 13.b5 (13.Rfd1 Bg4= (13...Qe7 14.N2f3 Bg4 15.c5 ab4 16.cd6+= 0.31) 14.N2f3 Qe7 15.c5 Nf3 16.Bf3= 0.22) 13...Bg4 (13...Qe7 14.Rad1= Bg4 15.Bg4 Nfg4 16.h3= 0.22) 14.f3 Bc8 15.e4 Ned7 (15...Qe7 16.Rae1=) 16.a4 (16.Rad1 Qe7=) 16...Nc5 (16...Nh5 17.g3=) 17.Ra3 (17.N4b3 Ne6=) 17...Qe7 (17...Nfd7 18.Bc3=) 18.Re1 (18.N2b3 Nfe4 19.fe4 Qe4=) 18...Bd7 (18...Nh5 19.N2b3=) 19.Nf1 (19.N2b3 b6=) 19...h5 (19...Nh5 20.Nb3=) 20.Bd1 (20.Ne3 h4+=) 20...h4= 21.Qf2 (21.Ne3 h3=) 21...Nh5 22.Bc2 Nf4 23.Ne3 c6 24.Bb1 Be5 25.Rd1 Qf6 26.Kh1 Kg7 27.Bc1 Rac8 28.Nf1 Nce6 29.Nb3= b6 30.Ne3 Ng5 31.bc6+= Rc6 32.Nd5 Nd5 33.cd5 Rc4 34.Qe3 Rc1 35.Nc1+/- h3 36.g3 Bb2+= 37.Ra2 Nf3 38.Rf1+- Bc1 39.Qc1 g5 40.Qe3 g4 41.Qb6 Rc8 42.Rc2 Rc2 43.Bc2 Qc3 44.Qf2 Qc4 45.Bd1 Ne5 46.Qf4?? Nf3= 47.Rf2 Qd4 48.Rf3 gf3–/+ 49.Qf3 Qa1 50.Kg1 Ba4 51.Qg4 Kf8 52.Qc8 Ke7 53.Qc7 Bd7 54.Qc2 a4 55.Kf2 a3 56.Qd2 Qf6 57.Ke1 Bb5 58.Qa5 Qf1 59.Kd2 Qf2 60.Kc3 Qb2# 0–1. Poley,Vladimir (2425) – Navrotescu,C (2395), 8th Open, St Lo FRA, 2004. (=1.Nf3 g6 2.d4 Bg7 3.b4 Nf6 4.Bb2 0-0 5.e3 d6 6.c4 Nbd7 7.Be2 e5 8.0-0)

9.Nc3 c6 10.a4 a5 (10...ed4 11.Nd4 Ne5 12.a5=) 11.b5 e4 (11...ed4 12.Nd4 (worse is 12.Qd4 Ne4 13.Qg7 Kg7 14.Ne4 f6 15.Nd6 Re6 16.Nc8 Rc8–/+) 12...Ne5 13.Qd2+=) 12.bc6 (12.Nd2 Qe7+=) 12...bc6 13.Nd2 Ba6 (13...Qe7 14.Nb3+=) 14.Ba3 (14.Rb1 d5+=) 14...c5 15.Qc2 (15.Rb1 Qe7+=) 15...cd4= 16.ed4 d5 17.Nb5 Bb5 (17...Nf8 18.Bf8 Bf8 19.c5+=) 18.cb5 (18.ab5 Bh6+=) 18...Rc8= 19.Qa2 e3 20.fe3 Re3 (20...Bh6 21.Nf3=) 21.Bf3 (21.Rae1 Qe8 22.Nf3 Rcc3=) 21...Rcc3 (21...Qb6 22.Bb2 Rc2 23.Rf2 Rb2 24.Qb2–/+) 22.Bb2 (22.Nb1 Rcd3=) 22...Rc2 23.Nb3 (23.Rf2 Rd3 24.Nb3 Rf2 25.Kf2 Qe7+=) 23...Ne4 24.Rac1 Nc3 25.Qa1 (25.Qa3 Ne2 26.Be2 Rce2 27.Kh1-+) 25...Ne2–/+ 26.Be2 Rce2 27.Nc5? (27.Bc3 Qh4 28.Be1-+) 27...Qg5 28.Rf2 Rf2 (28...Nc5 29.Rc5 Re1 30.Rf1 Ra1 31.Rc8 Bf8 32.Bc1-+) 29.Kf2 Qf4 30.Kg1 Re2 31.Rf1 (31.Nd3 Qe3 32.Kh1 Qd3-+) 31...Qe3 (better is 31...Qd2 32.Rf2 Rf2-+) 32.Kh1 Nc5 (32...Nc5 33.dc5 Bb2-+) 0–1. Johnston,Dafydd – Sully,David John, Cardiff WLS–ch Wales, 1981.

9.Nc3 c6 10.b5 Nf8 11.a4 a6 12.Qb3 ab5 13.ab5 Ra1 14.Ra1 ed4 15.Nd4 c5 16.Nf3 Be6 17.Rd1 Qc7 18.Nd2 b6 19.Bf3 N8d7 20.Nde4 Ne5 21.Nd6 Nf3 22.gf3 Rd8 23.Nde4 Ne4 24.fe4 Rd1 25.Nd1 Qd8 26.f4 Bb2 27.Qb2 Qd1 28.Kg2 Bg4 29.Qf2 Qe2 0–1. Orang4Utan (1670) – EdoTano (1820), lichess.org, 2017.

9.Nc3 c6 10.Qc2 ed4 11.Nd4 Ne5 12.Nf3 Nf3 13.Bf3 d5 14.cd5 Nd5 15.Nd5 Bb2 16.Qb2 cd5 17.Rfd1 Be6 18.Rac1 Qg5 19.Qd4 b6 20.h4 Qe7 21.h5 Qg5 22.b5 Rac8 23.Rc8 Rc8 24.hg6 hg6 25.Bd5 Bd5 26.Qd5 Qd5 27.Rd5 Rc2 28.a3 Rc3 29.a4 Rc4 30.Rd4 Rd4? 31.ed4+- Kf8 32.Kf1 Ke7 33.Ke2 Kd6 34.Kd3 f5 35.f3 g5 36.g4 Kd5 37.gf5 (37...Kd6 38.Ke4+-) 1–0. Trkn – guest1816, ICC, 2004.

9.Nc3 c6 10.Qc2 ed4 11.Nd4 Ne5 12.Nf3 Bf5 13.Qd2 Nfd7 14.Ne5 de5 15.Rfd1 Nf6 16.a3 Ne4 17.Ne4 Be4 18.f3 Bf5 ½–½. Dopper,Johan – van den Haak,Gerard KP, Netherlands, 1999.

9.Nc3 ed4 10.ed4 Nf8 11.Qd2 Bf5 12.Rfe1 h6 13.Bf1 Ne4 14.Ne4 Be4 15.Qf4 g5 16.Qg3 Qd7 17.Nd2 Bg6 18.Nb3 Ne6 19.b5 Nf4 20.Qf3 Rab8 21.Re8 Re8 22.Bc3 (22.Qb7 Be4 23.Qa6 Qg4-+) 22...Be4 23.Qd1 Bg2 24.Bg2 Ne2 25.Kf1 (25.Kh1!? Nc3 26.Qd3=) 25...Nc3+= 26.Qd3 Ne2 27.Bb7?? (better is 27.Re1 Nf4 28.Re8 Qe8 29.Qe4–/+) 27...Qg4-+ 28.Bg2 Qg2!! (28...Qg2 29.Kg2 Nf4 30.Kf1 Nd3-+; 28...Bd4? 29.Re1 Bf2 30.Re2 (worse is 30.Kf2 Qh4 31.Kf1 Qe1 32.Ke1 Nf4 33.Kd2 Nd3 34.Kd3 g4=) 30...Re2 31.Qe2 Qe2 32.Ke2+-; 28...Nd4?! 29.Nd4 Bd4 30.Rd1–/+) 0–1. Bader,Gerard – Cordier,Francois, FRA–ch distr02 corr, 1990. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.d4 e5 8.0-0 Re8)

9.Nc3 ed4 10.Nd4 a5 11.a3 Ne5 12.Qd2 Bg4 13.f3 Bd7 14.Rfe1 Nc6 15.Nc6 bc6 16.b5 Qe7 ½–½. Espig,Lutz – Hennings,Artur, DDR–ch, 1969. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 Nbd7 8.0-0)

9.Nc3 ed4 10.Nd4 d5 11.Nd5 Nd5 12.cd5 Nb6 13.Rc1 Nd5 14.Qb3 a6 15.a4 c6 16.Bc4 Qe7 17.b5 ab5 18.ab5 (18.Bd5 ba4 (worse is 18...cd5 19.Nb5 Bb2 20.Qb2+=) 19.Bf7 Qf7-+) 18...Nb6 19.bc6 Nc4 20.Qc4 bc6 21.Nc6 Qg5 22.h4 Qf5 23.Bg7 Kg7 24.Qd4 Qf6 25.Rfd1 Ra2 26.Qf6 Kf6 27.Rd6 Re6 28.Rd4 Ba6 (28...Re8!?+/-) 29.Nb4+- Ra3 30.Rc7 1–0. Javakhadze,Zurab (2455) – Benitez Lozano,Javier (2305), Kocaeli TUR, World Ch U20 (b), 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0 Re8)

9.Nc3 ed4 10.Nd4 Ne5 11.a3=.

9.Nc3 e4 10.Nd2 c5 11.dc5 dc5 12.b5 Nb6 13.Nb3 Qc7 14.a4 Be6 15.Nd2 Rad8 16.Qc2 Bf5 17.a5 Nc8 18.Nb3 Ng4? (18...h6!?=) 19.Bg4+/- Bg4 20.Nd5 Qd6 21.Bg7 Kg7 22.Qc3 f6 (22...Qe5 23.Qe5 Re5 24.f3+=) 23.h3 (23.Nc5 Qc5 24.Nf6 Qe5 25.Qe5 Re5 26.Ng4 Rg5+-) 23...Bd7 (better is 23...Be2 24.Rfe1 Bc4 25.Nf6 Qf6 26.Qc4 b6=) 24.Rad1 Qf8 (better is 24...Re5 25.Rd2 Ne7+-) 25.f4?? (better is 25.Nc5 Bh3 26.Nb7+-) 25...Kg8?? (better is 25...b6+/-) 26.Nf6+- Kf7 27.Ne8 Qe8 28.Nc5 Qe7 29.Nd7 Rd7 30.Rd7 Qd7 31.Qe5 Nd6 32.Rd1 Qe7 33.Rd6 Qf8 34.Rf6 Kg7 35.Rf8 Kf8 36.Qe4 b6 37.ab6 ab6 38.Qc6 Kg7 39.Qb6 h5 40.c5 Kh6 41.c6 Kh7 42.c7 Kh6 (42...h4 43.Qf6 g5 44.c8Q gf4 45.Qch8) 1–0. Coskun,Selin – Keskin,Suara, Wch U10 Girls, 2007.

9.Nc3 e4 10.Nd2 c6 11.Qc2 Qe7 12.a4 Nf8 13.b5 Bd7 14.a5 Rac8 15.a6 b6 16.bc6 Bc6 17.Qb3 h5 18.Ba3 Bd7 19.Qb4 N8h7 20.Qd6 Bf8 21.Qe7 Be7 22.Be7 Re7 23.Rfb1 Bf5 24.Nb5 Ne8 25.Nb3 Nhf6 26.c5 bc5 27.Nc5 Ra8 28.Na3 Bc8 29.Nc4 Nd5 30.Ra3 Nec7 31.Nd6 f5 32.Nc8 Rc8 33.Rb7 Ra8 34.g3 Nb6 35.Na4 1–0. Wolf – Bender, corr DDR 1980.

9.Nc3 Nf8 10.de5+/- de5 11.Ne5 Qd1 12.Nd1 Ne4 13.Nf3 a5 14.b5 Bg4 15.Rc1 Ne6 (15...Rad8 16.Bg7 Kg7 17.Nc3+=) 16.Bg7 Kg7 17.h3 Bf3 18.gf3 (18.Bf3 N6g5 19.Be4 Ne4+/-) 18...Nd2 (18...N4c5 19.Nc3+=) 19.Re1 Nf4 (19...Ng5 20.Kg2 Rad8 21.Nc3+/-) 20.ef4+/- Nf3 21.Bf3 (21.Kf1 Ne1 22.Ke1 c5+/-) 21...Re1 22.Kg2 Rd8 23.c5 (23.Rb1 Rd2+/-) 23...b6 (23...c6 24.bc6 bc6 25.a3+/-) 24.cb6 (24.f5 gf5 25.h4 Re5+/-) ½–½. Bunzmann,Dimitrij – Luecke,Norbert, Bundesliga, 1998. (=1.Nf3 g6 2.c4 Nf6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

9.d5 e4 10.Nd4 Ne5 11.h3 h5 (11...a5 12.a3=) 12.Nc3+= g5 13.Bh5 (better is 13.Qc2!?+=) 13...Nc4+= 14.Bc1 Re5 15.Be2 Nb6 16.f4 Nfd5 17.fe5 Nc3 18.Qc2 Ne2 19.Qe2 Be5 20.Qh5 (20.Bb2 Na4 21.Rad1 Nb2 22.Qb2 Qe7+=) 20...Qe7+= 21.Rb1 Kg7 (21...Nc4 22.a3+=) 22.Bb2= Nc4 23.Nf5 Bf5 24.Rf5 f6 (24...Nb2? 25.Rg5 Kf8 26.Qh6 Ke8 27.Rg8 Kd7 28.Ra8+-; 24...Ne3?? 25.Rg5 Qg5 26.Qg5 Kh7 27.Be5 de5 28.Qe5+-) 25.Be5 Ne5 26.Rbf1 Rh8 27.Qd1 Rh4 28.Qd4 c5 (28...b6 29.b5+=) 29.bc5 dc5 30.Qd5 b6? (better is 30...Kh8!?+=) 31.Rf6+- (31.Rf6 Rh6 32.Rh6 Kh6 33.Qe4+-) 1–0. Doostkam,Pooyan – Peyrou Olya,M (2265), IRI–ch Iran, 2000. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.0-0)

9.de5 de5 10.Ne5 Ne4 11.Nd3 Bb2 12.Nb2 a5+/-.

9.de5 de5 10.Ne5 Ne4 11.Nd3 Bb2 12.Nb2 Qe7 13.Qb3 a5 14.b5 Ndc5 15.Qa3 b6 16.Nc3 Nc3 17.Qc3 Bb7 18.Nd3 Ne4 (18...Nd3 19.Qd3 Qg5 20.g3+=) 19.Qb2 Rad8 20.Rad1 Ng5 (20...Rd6 21.Qc2+-) 21.Nf4 Rd1 (21...Qe4 22.Kh1+-) 22.Rd1+- (worse 22.Bd1 Qe4 23.Nd5 Bd5 24.cd5 Qd5+-) 1–0. DEFFM – DavidMorphy, freechess.org, 2018.

10.Nc3 de5 11.h3 (11.e4 a5 12.a3 ab4 13.ab4 Ra1 14.Qa1 c5+=) 11...Ngf6 12.c5 c6 (12...e4 13.Nd4+=) 13.Qc2 b5 (13...e4 14.Nd4+=) 14.Rfd1 (14.a4 ba4 15.Ra4 a5+/-) 14...Qc7 (14...a5 15.a3+=) 15.a4+/- ba4 16.Ra4 Nf8 (16...a5 17.Rda1 Rb8 18.Ra5 (worse is 18.ba5 Nc5 19.Rc4 Bf5+=) 18...Rb4 19.Nd2+=) 17.Rda1 Nd5 (17...Ne6 18.Bc4+/-) 18.Nd5 cd5 19.b5 (19.Qd2 Be6+/-) 19...Bf5 20.Qc1 Rac8 (20...Nd7!? 21.Ra6 Qc5 22.Qc5 Nc5 23.Ra7 Ra7 24.Ra7 h6+/-) 21.c6+- Ra8 22.Qc5 Nd7 (22...Qd8 23.Ra7 Ra7 24.Ra7+-) 23.Ra7 (23.Qd5?! Nb6 24.Qa2 Na4 25.Qa4 Reb8+=) 23...Nc5 24.Rc7 Ra1 (24...Na4 25.Ba3 Nc3 26.Bf1+/-) 25.Ba1 e4 (25...d4 26.ed4 ed4 27.Bc4+- (27.Bd4?! Ne6 28.Bg7 Nc7+-; 27.Nd4?! Ne6 28.Ne6 Ba1+/-)) 26.Nd4 Ra8 27.Bc3 Ne6 (27...Be5 28.Nf5 Bc7 29.Ne7 Kf8 30.Nd5 Bd6+-) 28.Nf5 Nc7 (28...Bc3 29.Ne7 Kf8+-) 29.Ng7 (29.Bg7?! gf5 30.Be5 d4 31.Bd4 Nd5+-) 29...Rb8 30.Be5 Rb5 31.Bb5 Nb5 32.Ne8 (32.Ne8 Kf8 33.c7+-) 1–0. Dutka,Czeslaw – Chwojnicki,Lucjan, Poland, 1976.

10.Qd2 Nde5 11.Ne5 Be5 12.Be5 Ne5=.

11.Nd4 a5 12.a3 Nb6 13.Qb3 a4 14.Qa2 Qh4 (better is 14...c5!? 15.bc5 dc5=) 15.c5+/- dc5 16.bc5 Nbd7 17.Nd5 Rb8 (better is 17...Ra5!? 18.Nc7 Rf8+/-) 18.Nc7+- Rf8 19.Nde6 (better is 19.Rac1!?+-) 19...fe6+= 20.Ne6 Bf6 21.Rac1 Rf7 22.f4 Nf8 23.Nf8 Ng4 24.Bg4 Bb2 25.Ne6 (worse is 25.Qb2 Qg4 26.Qe5 Ra8 27.Nh7 Rh7 28.Qe8 Kg7 29.Qe7 Kg8 30.Qd8 Kf7+=) 25...Bc1 26.Ng5 Be3 27.Kh1 Bg4 28.Qf7 Kh8 29.Qe7 Kg8 30.Qe3 Rf8 31.Qe5 Bd7 32.Qd5 Kh8 33.Kg1 Bb5 34.Qe5 Kg8 35.g3 Qh6 36.Re1 Bc4 37.Qd4 Bf7 38.Re7 Qg7 39.Qg7 Kg7 40.Rb7 h6 41.Nf7 Kf6 42.c6 Rc8 43.Ne5 Ke6 44.Rh7 h5 45.Rh6 h4 46.g4 Kd6 47.Rg6 Kd5 48.Nd7 Rc6 49.Nb6 Kc5 50.Na4 Kb5 51.Rc6 Kc6 52.g5 Kd5 53.g6 Ke6 54.f5! Kf6 55.Nc5 Kf5 56.g7 (56.g7 Ke5 57.g8Q+-) 1–0. Labbe,Regis (2130) – Dantas,Roberto, 1st Webchess Open Tournament group, 2005.

11.Nd4 Nb6 12.Qb3=.

11.Nd4 Nf8 12.Qb3 (12.Nd5 c6 13.Nf4 Qh4=) 12...Ne6= 13.f4 (better is 13.Nf3=) 13...Nd4–/+ 14.ed4 Nc6 15.d5? (better is 15.Bd3 Nd4 16.Qd1–/+) 15...Nd4-+ 16.Qd1 (16.Qa3 Nc2 (16...Re2?! 17.Ne2 Ne2 18.Kh1 Bb2 19.Qb2–/+) 17.Qb3 Na1 18.Ba1 Qe7-+) 16...Ne2 17.Ne2 Bb2 (17...Bb2 18.Rb1 Bg7-+) 0–1. Suess,Stefan – Kievelitz,Bernd, corr ICCF GT–120, 1988.

11.Ne5 Ne5 12.Nd5=.

12.a3 a5=.

12.Qb3 a5 13.a3=.

12.Qb3 c6 13.Rad1+= Qe7 14.Rfe1 a5 15.b5 Bd7+=.

12.Qb3 c6 13.Rad1+= Qe7 14.h3 a5 15.b5=.

12.Qb3 c6 13.Rad1+= Qe7 14.h3 a6 15.f4 (15.a4 a5 16.b5 Nfd7=) 15...Ned7 16.Rf3 c5 (16...h6 17.Bd3=) 17.Nc2 (17.bc5 Nc5 18.Qb6 a5=) 17...b6 18.e4 (18.Rf2 cb4 19.Qb4 Nc5=) 18...Bb7 (18...Ne4 19.Ne4 Bb7 20.Nc3 Bd4 A) 21.Rd4?! cd4 22.Nd4 Bf3 23.Nf3 Qe3 24.Kf1 Nf6= (worse is 24...Qf4 25.Nd5 Qh6 26.Nc7+/-); B) 21.Kh1+-) 19.Re3 (19.Bd3 cb4 (worse is 19...Be4 20.Re3 d5 21.Nd5+/-) 20.Qb4 a5=). Nicklich,Wolfgang – Tobi, corr, 1972.

12.Qb3 c6 13.Rad1+= Qe7 14.h3 Be6 15.f4+= Ned7 16.e4 Nf8 17.Bf3 Rad8 18.b5 (18.e5 de5 19.fe5 N6d7+=) 18...c5 (18...Qc7 19.f5 Bd7 20.a3+=) 19.Nc2 Bh6 (19...N8d7 20.Nd5 Bd5 21.ed5+=) 20.Bc1 (20.e5 de5 21.fe5 Rd1 22.Rd1 N6d7 23.Bb7 Bg7+=) 20...Bg7+= 21.Ne3 h6 (21...Bh6 22.e5 de5 23.fe5 Rd1 24.Rd1+= (worse is 24.Qd1 Be3 25.Be3 Bc4+=; 24.Bd1?! N6d7=; 24.Ncd1?! N6d7+=)) 22.f5 Bc8 23.Ned5 Nd5 24.Nd5 (worse is 24.cd5 gf5 25.Rde1 Qh4+=; 24.Rd5?! Nd7=) 24...Qh4 25.Bg4 Be5 (better is 25...Re4 26.g3 Rg4 27.hg4 Qg4+/-) 26.Rd3+- h5 27.g3 (27.fg6 hg4 28.gf7 Kg7 29.fe8R Re8+-) 27...Bg3 28.Rg3 hg4 29.Rg4 (29.Rg4 Qh8 30.Bb2+-) 1–0. Sokolski,Alexey – Kirillov,Vladimir Grigorevich, Minsk zt, 1957.

9.Bd4 a5 10.a3 c5 11.Bc3 Qb6 12.b5 Re8 13.Nbd2 Ne5 14.0-0 Bf5 15.Rad1 a4 16.Qb2 Rad8 17.Nh4 Bg4 18.Rfe1 Be2 19.Re2+=.

9.Nd4 a5 10.ba5 (10.a3 Ne4=) 10...Ra5 (10...Nc5 11.Qb4=) 11.Nc3 (11.0-0 Nc5 12.Qc2 Na4=) 11...Nc5 12.Qc2 Re8 (12...Be6 13.0-0=) 13.0-0 Ra8 14.a4 (14.Rfd1 Ng4=) 14...c6 (14...Bg4 15.Nd5 Be2 16.Ne2=) 15.Rfd1 Qe7 (15...Bg4 16.Bg4 Ng4 17.h3=+) 16.Bf3 (16.h3 Qc7=) 16...Bg4 (16...Ng4 17.a5=) 17.Bg4 (17.a5 Ra6=) 17...Ng4=+ 18.Nf3 (18.a5 Ra6=+) 18...f5 (18...b6 19.h3 Ne5 20.Ne5 Be5 21.Ne2=+) 19.h3 (19.a5 Ne4 20.Ne4 fe4 21.Bg7 Qg7=+) 19...Ne5=+ 20.Ne5 Be5 21.a5 (21.Ba3 Qh4 22.Bc5 dc5=+) 21...Qc7 22.Na4 (22.Nb1 Ra5 23.Nd2 Ra1 24.Ba1 Qg7 25.Be5 Qe5–/+) 22...Qa5 (22...Ra5 23.Nc5 Rc5 24.Bd4 Bd4 25.ed4=+) 23.Nc5= Qc5 24.Bd4 Bd4 25.ed4 Qb6 26.Ra8 Ra8 27.c5 dc5 28.dc5 (28.Qc4 Kg7 29.dc5 Qc7=+) 28...Qc7 29.Qc4 Qf7 30.Qf7 (30.Qb4 f4=+) 30...Kf7 31.Rd7 Ke6 (31...Kg8 32.f4–/+) 32.Rb7 (32.Rh7 Ra5=+) 32...Rh8 33.Rb1 (33.Rg7 Kd5=+) 33...Kd5–/+ 34.Rc1 Re8 (34...Rb8 35.g4–/+) 35.f3 (35.g4 fg4 36.hg4 Re4–/+) 35...Re2 (35...Re5 36.g3–/+) 36.Kf1 (36.g3 h6–/+) 36...Rd2 37.Kg1 (37.f4 h5–/+) 37...Kd4 (37...f4 38.Kh2–/+) 38.Kh2 (38.f4 Ke4–/+) 38...f4 39.h4 Rd3 40.Kh3 h5 41.Rc2 (41.Re1 Kc5 42.Re7 Rd1–/+) 41...Rd1 42.Kh2 Re1 (better 42...Kd5–/+) 43.g3? (43.Ra2 Kc5 44.Ra4 Kd5–/+) 43...fg3 (better 43...Kd3!? 44.Rg2-+) 44.Kg3–/+ Re5 45.Kh3 (45.Rg2 g5–/+) 45...Rc5 (45...Rf5 46.Kg3–/+) 46.Rg2 Rf5 47.Rg6 Rf3 48.Kg2 Rc3 49.Rh6 Rc5 50.Kf3 (50.Kg3!?–/+) 50...Rf5-+ 51.Ke2 c5 52.Rd6 (52.Kd2 Ke4-+) 52...Rd5 53.Rf6 (53.Rh6 Kc3-+) 53...Re5 54.Kd2 (54.Kf2 c4-+) 54...Re4 55.Rd6 Kc4 56.Ra6 Kb5 (56...Kd5 57.Ra8-+) 57.Ra1 (57.Ra8 Rh4 58.Rh8 Rh2 59.Kd3 Rh3 60.Kd2 h4-+) 57...Rh4 58.Rb1 (58.Ra8 Rh3-+) 58...Kc4 59.Ra1 (59.Ke3 Rh3 60.Ke4 h4-+) 59...Rh2 60.Ke3 Kb3 61.Rb1 (61.Kf3 c4 62.Kg3 Rd2-+) 61...Kc2 62.Ra1 Rh3 63.Ke2 c4 64.Ra2 Kb1 65.Ra8 (65.Ra5 Rb3 66.Rh5 c3-+) 65...c3 (65...Rb3!? 66.Rg8-+) 66.Rb8 Kc1 67.Rb7 (67.Rb3 Rh2 68.Ke1 c2-+) 67...c2 68.Rb5 Rg3 (68...Rh2 69.Kf3-+) 69.Rh5 Kb2 70.Rh1 0–1. Villalta Bustillo,Igor (2215) – Barbera Estelles,Rosendo (2265), TCh–CECLUB Div2, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d4 Nbd7 8.Qb3 ed4)

9.Nd4 c5 10.Nb5 Qb6 11.a4 a6 12.a5 Qc6 13.Bf3 d5 14.N5a3 dc4 15.Nc4 Qe6 16.0-0 Rb8 17.Nbd2 b5 18.ab6 Nb6 19.Na5=.

9.0-0 ed4 10.Nd4 a5=.

9.0-0 ed4 10.Nd4 Qe7 11.Nc3=.

9.0-0 e4 10.Nfd2 c6 11.Nc3 Nb6 12.a4 d5 13.b5 dc4 14.Nc4 Nc4 15.Bc4 cb5 16.Bf7 Kh8 17.Be8 Qe8 18.ab5 Be6 19.d5 Bg8 20.Rfd1 b6 21.Ne2 Qd7 22.Bf6 Bf6 23.Rac1 Rd8 24.Rd2 Be5 25.Rcd1 Bf7 26.Qc2 Qf5 27.Ng3 Qg4 28.Qe4 1–0. carocan (1765) – santeri (1705), kurnik, 2012.

9.0-0 e4 10.Nfd2 c6 11.Nc3 d5 12.a4 (12.cd5!? Nd5 13.Nd5 cd5 14.Qd5+/-) 12...dc4 13.Bc4 Nb6?? (better is 13...Qe7+=) 14.Bf7+- Kh8 15.Be8 Qe8 16.b5 Be6 17.Qc2 Nc4 18.Nce4 Nd2 19.Nd2 Bd5 20.Rfe1 Ne4 21.f3 Nd2 22.Qd2 Qf7 23.e4 Bc4 24.Rac1 cb5 25.ab5 Bb5 26.d5 a5 27.Bg7 Qg7 28.e5 a4 29.d6 Bc6 30.e6 a3 31.d7 Qe7 32.Ra1 Kg8 33.Qa2 b5 34.Qb3 b4 35.Red1 h5 36.Rd4 Rb8 37.Ra3! ba3 38.Qb8 Kh7 39.d8Q (39.d8Q Qg7 40.Qbc7+-) 1–0. carocan (1735) – wkapica (1740), kurnik, 2011.

9.0-0 e4 10.Nfd2 c6 11.Nc3 Qe7 12.Rad1+=.

9.0-0 e4 10.Nfd2 Nf8.

9.0-0 Ne4 10.Nc3+= Nc3 11.Bc3 (worse is 11.Qc3 ed4 12.Qd3 de3 13.Bg7 ef2 14.Rf2 Kg7–/+) 11...Qe7 12.a4 (12.Rad1 e4 13.Nd2 Qg5=) 12...Nf8 (12...e4 13.Nd2=) 13.Rfd1 (13.de5 de5 14.a5 Bf5+=) 13...Bg4 (13...e4 14.Ne1+=) 14.de5 de5 15.Qb2 (15.Ra2 c5+=) 15...f6 (15...Rad8 16.a5+=) 16.Rd2 (16.h3 Be6+=) 16...Rad8 17.Rad1 Be6 (17...Rd2 18.Qd2 Ne6 19.c5+=) 18.b5 (18.Qb1 Rd2 19.Rd2 Nd7+=) 18...Rd2 19.Rd2 (19.Nd2 Rd8+=) 19...Rd8 (19...Qf7 20.c5+=) 20.Bb4 Qe8 21.a5 Rd2 22.Nd2 (22.Qd2 Nd7+=) 22...Bd7 (22...Nd7 23.Qa3+=) 23.Bf3+/- c6 (23...Qc8 24.Bc5+/-) 24.Bc5 (24.Ne4 Ne6+/-) 24...f5 (24...cb5 25.Bb7 bc4 26.Nc4+/-) 25.bc6 (worse is 25.Ba7 e4 26.Bd4 Bd4 27.Qd4 ef3 28.Nf3 Qe7–/+) 25...bc6 (25...Bc6 26.Bc6 (26.Ba7 e4 27.Bd4 Bd4 28.Qd4 ef3–/+) 26...bc6 27.Ba7+/-) 26.Qb7 (worse is 26.Ba7 e4 27.Bd4 Bd4 28.ed4 ef3 29.Nf3 Qe4+=) 26...e4 27.Be2 Ne6 28.Ba7 (28.Bd6 Bc3 29.Nb3 a6+/-) 28...c5 (28...Bc8 29.Qb8+/-) 29.Nb3+- Bf8 30.Qb8 Kf7 31.h4 (31.Qe8 Ke8 32.Bb6 Bc8+/-) 31...Qb8 (31...Be7 32.h5+/-) 32.Bb8+- Bc8 33.f3 (33.Kh2 Kf6+-) 33...Ke7 34.fe4 fe4 35.Bg4 (35.Bd1 Bb7+-) 35...Ba6 (35...Kf6 36.Nd2 Bb7 37.Kf2+-) 36.Nd2 Bb7 37.Kf2 Bg7 (better is 37...Kd7+-) 38.Nb3 Bf8 39.Ba7 Ba6 (39...h5 40.Be6 Ke6 41.Bc5+- (41.Nc5?! Bc5 42.Bc5 Ba6+/-)) 40.Nc5 Bc4 41.Ne6 Be6 42.Be6 (better is 42.a6!? Bc4 43.Bc5 Ke8 44.Bf8 Kf8 45.Bc8+-) 42...Ke6 43.Bd4 Kd5 44.a6 Kc6 45.a7 Kb7 46.h5 (46.Kg3 Bh6+-) 46...Bd6 47.hg6 hg6 48.Ke2 (48.Ke2 Bb4 49.Kd1+-; 48.Ke1 Bb4 49.Kd1 Bc3+-) 1–0. Sokolski,Alexey – Kogan, Odessa, 1949.

9.Nc3 a5 10.0-0=.

9.Nc3 c6 10.0-0 Nf8 11.d5 cd5 12.cd5 N8d7 13.Nd2 a6 14.a4 e4 15.Rac1 b6 16.Ba3 Bb7 17.Rfd1 Bf8 18.Bf1 Rc8 19.h3 Re5 20.Qb1 Nd5 21.Nce4 Re8 (21...f5!? 22.Ng3 Nc3 23.Qb3 Bd5+=) 22.Rc8 Qc8 23.Rc1 (23.b5!?+/-) 23...Qa8= 24.Ng5 (24.Nc3 Nc3 25.Rc3 Bg7+=) 24...Bh6 25.Ngf3 Ne5 26.Ne5 de5 27.Ne4 (27.Nc4 Bf8=) 27...Rd8 28.Rd1 f5 29.Nd2 Bg7 30.Qb3 Kh8 31.Bb2 Qc8 32.Nc4 Qe6 33.a5 (better is 33.e4 fe4 34.Ne3=) 33...Rc8?? (better is 33...b5 34.Nd2 Qd6+=) 34.Nb6+- Rd8 35.Bc4 1–0. Mikhalchishin,Adrian – Vuckovic,B, III open Nova Gorica, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Qb3 Re8 8.Be2 e5)

9.de5 de5 10.c5 c6 11.Nbd2 Qc7 (11...b6 12.cb6 ab6 13.Rc1=) 12.Bc4 Re7 13.Ng5 Nd5 (13...Nf8!?+=) 14.e4+/- Nf4 (14...Bh6 15.Ndf3 (15.ed5?! cd5 16.Bd5 Bg5+/-) 15...b5 16.cb6 (16.ed5 bc4 17.Qc4 cd5 18.Qd5 Bb7+=) 16...N5b6 17.Nf7 Nc4 18.Nh6 Kg7 19.Qc4 Kh6 20.h4+-) 15.Bf7 Kh8 16.Be8?? (better is 16.g3 Nh5 17.Bc4+-) 16...Bf6 (16...Re8?? 17.Nf7 Kg8 18.Nh6 Kh8 19.Qg8 Rg8 20.Nf7; worse is 16...Ng2 17.Kf1 Bf6 18.Nf7 Kg7 19.Kg2 Re8 20.Nd6+=) 17.Nf7 Kg7 18.g3 Re8 19.gf4 ef4 20.Nd6+/- Re7 21.Rg1?? Ne5= 22.N6c4 Be6 23.Qc3 Bg4 24.Ne5= Be5 25.Qb3 Bc8 26.Be5 Re5 27.Qb2 Qe7?? 28.Nc4+- Kf6 29.0-0-0 (29.Ne5?! Qe5 30.–0-0 a5+-; 29.Qe5?! Qe5 30.Ne5 Ke5+-) 1–0. Choma,Juliana Luiza (1885) – Tonette,Janaine (1805), Parana–ch Foz do Iguacu, 2008. (=1.Nf3 d6 2.d4 g6 3.c4 Bg7 4.e3 Nf6 5.b4 0-0 6.Bb2 Nbd7 7.Qb3 Re8 8.Be2 e5)

10.Nd4 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Ne5 14.0-0 c6 15.Bb2+= Bg4 16.f3 Bc8 (16...Bd7 17.Ra1=) 17.Rd1 (17.Ra1 h6+=) 17...Bh6 (17...Qe7 18.e4=) 18.Bc1 (18.e4 Qe7+=) 18...Ned7 19.f4 (19.e4 Bc1 20.Rc1 Nh5=) 19...Nf8 (19...Bg7 20.Rd3=) 20.h3 (20.b5 Ne6+=) 20...Ne6 (20...Bg7 21.Bf3=) 21.Bf3 Qb6 (21...Bg7 22.b5=) 22.Kh1 (22.b5 Nd4 23.Rd4 Be6=) 22...Nd4 23.Rd4 c5 (23...Re6 24.Na4 Qc7 25.Bb2=) 24.Na4 Qb4 (24...Qc7 25.bc5 dc5 26.Rd1+=) 25.Qb4+= cb4 26.Rd6 Nd7 27.Nb6 Nb6 28.Rb6 Bf4 29.ef4 Re1 30.Kh2 Rc1 31.Rb4 ½–½. Mikhalchishin,Adrian – Tratar,M, Ptuj, 1998.

10.Nd4 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Ne5 14.0-0 Bd7 15.Bb2+= c6 16.Ra1 Qe7 (16...Qb6 17.h3 g5 18.Nf3 Nf3 19.Bf3+=) 17.Ra7 Neg4 (17...c5 18.Nc2+=) 18.Nd1 c5 19.Nf3 Bc8 20.h3 Ne5 (20...Nh6 21.Nd2+/-) 21.bc5 Nc6 22.cd6 Qd6 23.Ra8 Ne4 24.Bg7 Kg7 25.Nc3 Nc3 26.Qc3 Kg8 27.c5 Qe7 28.Nd4 Nd4 29.Qd4 Rd8 30.Qb4 h5 31.Bf3 Kh7 32.Ra1 Rd7 33.Rc1 Rc7 34.Qe4 Be6 35.Qe5+- Kg8 36.g4 hg4+/- 37.hg4 f6 38.Qd4 Kf7 39.Kg2 Rd7 40.Qf4 g5 41.Qe4 Kg7 42.Rh1 Bg8 43.Qe7 Re7 44.Rb1 Be6 45.Rb7 Rb7 46.Bb7 (46.Bb7 Bg4 47.c6+-) 1–0. Ng,Gary (2140) – Charlton,Glenn (2055), NS Closed, 2006.

10.Nd4 c5 11.Ndb5 Re6 12.Nd5 Nd5 13.cd5 Bb2 14.Qb2+=.

10.Nd4 c6 11.0-0 Qe7 12.Rad1 Nf8 (12...a6 13.Rfe1+=) 13.Rd2 Ng4 (13...Bg4 14.Rfd1+=) 14.Qd1 h5 (14...Ne5 15.Re1+=) 15.h3+/- Ne5 16.b5 (16.a3 Rd8+/-) 16...Ne6 (16...a6 17.e4+=) 17.Nb3 (17.Nc2 cb5 18.cb5 Nc5+/-) 17...Ng5 18.f4 (18.bc6!? bc6 19.Re1+/-) 18...Nh3= 19.gh3 Bh3 (better is 19...Nc4 20.Bc4 Bc3=) 20.Qe1 (20.Re1 Qh4 21.Ne4 Nc4 22.Bf6 Bf6 23.Nf6 Qf6 24.Bc4+=) 20...Bf1–/+ 21.Kf1 Ng4 22.Bg4 hg4 23.Nd1 (23.Rd3 Qe6 24.Na5 cb5 25.cb5 b6=) 23...Qe4–/+ 24.Qe2 Qh1 ½–½. Nedobora,M – Matamoros Franco,C, Mondariz, 1994.

10.Nd4 Ne5 11.0-0=.

10.Nd4 Ne5 11.h3 a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 Nc6 15.Nc6 bc6 16.0-0 Be6 17.Bf3 +=. Sokolski – Koval, 1951.

10.Nd2 a5 11.b5=.

11.0-0 a5 12.a3+=.

11.0-0 Qe7+=.

11.0-0 Bf5 12.a4 h5 (12...c5 13.bc5 dc5 A) 14.Qb7? Rb8 (worse 14...cd4 15.Nb5-/+) 15.Qa7 Rb2-+; B) 14.d5+=) 13.b5 (13.a5 c6+/-) 13...N8h7 (13...h4 14.h3+=) 14.Rfd1 Ng4 15.h3 Qh4?? (better 15...Nh6+/-) 16.hg4+- hg4 17.g3 (17.Nf1 Nf6+-) 17...Qh6 18.Bf1 Ng5 19.Bg2 (19.a5!? Nh3 20.Kg2 Ng5+-) 19...Nf3 20.Kf1 (20.Nf3 gf3 21.Bh1 a6+-) 20...Rab8 21.Nd5 c6 22.Nf4 g5 23.Ba3?? (better 23.Ne2+-) 23...gf4-+ 24.Bd6 (24.gf4 Qh2 25.Ra2 Qg1 26.Ke2 Qg2-+) 24...Qd6 (better 24...fe3 25.Bf4 Qh2 26.Be3-+) 25.c5 (25.gf4 Qh6 26.Bf3 ef3 27.Ke1 Bd4 28.Nf1 Ba1 29.Ra1-+) 25...Qh6 26.ef4 (26.Nc4 Qh2 27.Nd6-+) 26...Bd4 27.Nc4 Ba1 (27...Qh2 28.Ne3 Be6 29.Qb4 Be3 30.Ke2 Bf2 31.Rf1-+) 28.Ra1 (28.Nd6 Be6 29.Qb4 a5-+) 28...Qh2 29.Qb2 (29.Rd1 Be6 30.f5 Red8 31.fe6 Rd3 32.ef7 Kf8 33.Qd3 Qg1 34.Ke2 ed3 35.Ke3 Qd1 36.bc6 bc6 37.Kf4 Qc1 38.Kg4 Qc4 39.Kh3 Qe6 40.g4 Ng1 41.Kg3 Ne2 42.Kh2 Qe5 43.f4 Qf4 44.Kh1 Qh6 45.Bh3 Qh3) 29...Qg1 (better 29...e3 30.Ke2 Rbd8-+) 30.Ke2 Qg2 31.Ne5 (31.Ne3 Ng1 32.Ke1-+) 31...Rbd8 32.Qc3 Rd2 33.Qd2 Nd2 34.Ke3 Qf2! 35.Kf2 e3! 36.Ke3 Nc4 (36...Nf3 37.Kf2 Ne5 38.fe5 Re5 39.Rc1-+) 37.Kf2 (37.Kd4 Ne5 38.fe5 Rd8 39.Ke3 Rd3 40.Kf4 Be6-+) 37...Ne5 38.fe5 Re5 39.Rd1. ClayPigeons (2220) - RudiMentaer (2225), Rated Bullet game, lichess.org, 2021.

11.0-0 Bf5 12.b5 h5 13.Rfc1 h4 14.h3 g5 15.Nd5 Nd5 16.cd5 Nh7 17.Nf1 Nf6 18.Nh2 Qd7 19.a4 Re7 20.Rc3 g4 21.hg4 Ng4 22.Ng4 Bg4 23.Rc7 Qc7 24.Bg4 Ree8 25.Ba3 ½–½. Bennett – Mari Arul, Genting Highlands 1998.

11.0-0 h5 12.Rae1 c5+/-.

11.0-0 h5 12.Nd5 N8h7 (12...Nd5 13.cd5 Qg5 14.f3 ef3 15.Rf3=) 13.b5 (13.Nf6 Nf6 14.a3 d5+=) 13...h4 (13...Nd5 14.cd5 Qg5 15.Rfc1=) 14.Nf6 (14.Nf4 g5 15.Nd5 h3+=) 14...Nf6 15.h3 Bf5 (15...Be6 16.Qc2+=) 16.d5 (16.a4 Nd7+=) 16...Nd7 17.Bg7 Kg7 18.Qc3 Kh7 (18...Qf6!? 19.Qc2 Qg5=) 19.g4+/- hg3 20.fg3 Re5? (20...Ne5 21.Kh2 Rh8=) 21.g4+- Qh4 22.Rf2 (22.gf5 Qg3 23.Kh1 Qh3 24.Kg1 Qg3 25.Kh1 Rh8 26.Rfb1 Kg8 27.Bh5 Rh5) 22...Rg8 (22...Rh8 23.gf5 Rf5 24.Rg2+-) 23.Rg2 Nc5 24.gf5 gf5 25.Rg8 Kg8 26.Kg2 f4 27.ef4 Qf4 28.Rf1 Qh6 (28...Qg5 29.Kh2 Kf8 30.Nb3 Nb3 31.ab3+-) 29.Nb3 Nd3 (29...Nb3 30.ab3 f5 31.Kh2+-) 30.Kh2 (30.Bd3 Qe3 31.h4 ed3+-) 30...Qe3 31.Qd2 (31.Nd4 Rg5 32.Bg4 Rg4 33.hg4 Qh6 34.Kg2 Qe3=) 31...Qd2 32.Nd2 Nc5 33.h4 f5 34.Kg3 Kg7 (34...Na4 35.Kf4 Nc3 36.Ke3+-) 35.Nb3 Na4 36.Kf4 Nc3 37.Rg1 Kf6 38.Bh5 e3 39.Nc5! (39.Nc5 Ne2 40.Be2 dc5 41.Bf3+-) 1–0. Muri,Heinrich – Amaro,Cristiano GS, corr Latin Am–Cup5 sf04, 1995.

11.0-0 h5 12.Rfe1 Bf5 13.d5 N8d7 14.Qc2 c6 15.dc6 bc6 16.Red1 Ng4 17.h3 Ngf6 18.Nb3 Ne5 19.Nd4 Bd7 20.b5 Qb8 21.bc6+/- Nc6 22.Ndb5 Re6 23.Ba3 a6 24.Nd6 Nb4 25.Bb4 Qb4 26.Rab1 Qc5 27.Nce4 Qc7 28.Rb7 Qc6 29.Bf3 Ne4 30.Ne4 Qa4 31.Qe2 Bc6 32.Nc5 Qa5 33.Ne6 Bb7 34.Ng7 Bf3 1–0. Fritz 5.32 – Comet B25, 2004.

11.a4.

11.Qc2 Qe7 12.0-0 h5 (12...Bf5 13.Rfd1+=) 13.f3 (13.a3!?+=) 13...ef3= 14.Bf3 (14.Rf3!? a5 15.a3=) 14...Qe3+= 15.Kh1 Bf5 16.Qc1 c6 (16...Bh6 17.Nb3 Bd3 18.Bb7 Qc1 19.Bc1–/+) 17.Re1 (17.b5 Rac8–/+ (worse is 17...Qd4 18.bc6 Qc5 19.cb7+/-)) 17...Qd3 (better is 17...Qe1 18.Qe1 Re1 19.Re1 Ne6–/+) 18.d5 (18.Be2!? Qc2 19.Qc2 Bc2 20.Rac1–/+) 18...Re1-+ 19.Qe1 Re8 20.Qf2 (20.Qc1 Bh6 21.Nde4 Ne4 22.Qe1-+) 20...Ng4 21.Bg4 hg4 (21...Bg4?! 22.Nde4 Re4 23.Ne4 Qe4 24.Bg7 Kg7 25.dc6 bc6 26.a3-+; 21...Bc3?! 22.Bf5 Qd2 23.Qd2 Bd2 24.Bd3 Bb4 25.Bd4-+) 22.Nd1 (22.Rc1 Bd4 23.Qf4-+) 22…Re2 (22...Re2 23.Qg3 Qd2-+) 0–1. Lehmann – Schlachetka,W, corr 3.DDR–PV/51 L623/, 1972.

11.Qc2 Bf5 12.h3+=.

9.0-0 ab5 10.cb5 Re8 11.de5 de5 12.Ne5 Ng4 13.Nc4 Nh2 14.Kh2 Bb2 15.Nb2 Qh4 16.Kg1 Nc5 17.Qc2 b6 18.Bf3 1–0. MrkT – The Swine Down Hope, Internet, 2005.

9.a4 c6 10.0-0 Re8 11.de5 de5 12.Be5 Ne5 13.Qd8 Nf3 14.Bf3 Rd8 15.bc6 bc6 16.Bc6 Rb8 17.Na3 Bd7 18.Bd7 Nd7 19.Rab1 Nb6 20.a5 Na4 21.Nc2 Nc3 22.Rb6 Rbc8 23.Ra6 Rc4 24.Nd4 Bd4 25.ed4 1–0. olawoj – lucky20, kurnik, 2012.

9.ed4 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 d5 13.c5 Ne4 14.Na3 Re8 15.0-0 (15.Nc2 Qe7 16.Nb4 Ndc5 17.Nd5 Qd6=+) 15...Nec5=+ 16.dc5 Ba1 17.Qa1 Re2 18.Qd1 (18.Nd4 Re4 19.Qc3 Qh4=+) 18...Qe7 19.Nb1 (19.c6 bc6 20.bc6 Nf6–/+) 19...Nc5 20.Nc3 Re6 21.Qd5 c6 22.Qa2 (22.Qd2 Qf6–/+) 22...Bd7 (22...cb5 23.Nb5 b6 24.Nbd4–/+) 23.b6=+ Nd3 (23...Kg7 24.Rd1=+) 24.Qa8 (24.Rd1 Bc8=+) 24...Be8 25.Qb8 (25.Rd1 Nb2 26.Rb1 Nc4=+) 25...Qc5 (25...Qb4 26.Qb7 Re7 27.Qb8 Qc3 28.Qd8=+) 26.Qb7=+ Qc3 27.Qa8 (27.Qc8 Nc5 28.b7 Nb7 29.Qb7 c5–/+) 27...Nc5–/+ 28.b7 Nb7! 29.Qb7 c5 30.Qb1 (30.Qc7 h6–/+) 30...Bc6 31.Ng5 (31.Rc1 Qa5–/+) 31...Re8-+ 32.Qb6 (32.Rd1 h6 33.Nh3 Qb4-+) 32...Bd5 33.Qd6 (33.Qb1 h6 34.Nh3 Qb4-+) 33...Qd4 34.Qd7 Re2 (34...Re5 35.h4-+) 35.Qh3 h5 36.Qd7 (36.Qg3 Qe5-+) 36...Qe5 37.Qc8 (37.h4 c4-+) 37...Kg7 38.h4 Re1 39.Qa6 (39.Nf3 Rf1 40.Kf1 Qa1 41.Ke2 Qb2 42.Nd2 Bc4 43.Kd1 Bd3 44.Qc5 Qa1 45.Nb1 Bb1-+) 39...c4 40.Qa7 c3 41.Qa4 Rf1 (41...Kg8 42.Qd7-+) 42.Kf1 Qc7 (better 42...Kh6-+) 43.Qd4–/+ f6 44.Qd5 fg5 45.Qg5 c2 46.Qc1 ½–½. DEFFM – GuestHSXK, freechess.org, 2018.

9.ed4 c6 10.bc6 (10.0-0 Re8=) 10...bc6 11.0-0 (11.Nbd2 Rb8 12.Nb3 Nb6=) 11...Rb8 12.Qc2 (12.Bc1 Ne4=) 12...c5 (12...Re8 13.Re1=) 13.Nbd2 cd4 (13...Nh5 14.Rfe1=) 14.Bd4 (14.Nd4 Qc7=) 14...Nc5 15.Nb3 (15.Rab1 Rb1 16.Qb1 Re8=) 15...Bf5 16.Qb2 Na4 (16...Re8 17.Rfe1=) 17.Qa3+= Nc5 (17...Qd7!?+=) 18.Nc5+/- dc5 19.Qc5 (19.Bc5 Re8 20.Rad1 Qc8+/-) 19...Ne4 (19...Re8 20.Rae1+=) 20.Qd5 Qd5 (20...Nc3 21.Bc3 Bc3 22.Rac1+=) 21.cd5 Bd4 (21...Rfd8!? 22.Bc4 Rb4+=) 22.Nd4+/- Nc3 (better is 22...Rb2+/-) 23.Bc4 (better is 23.Bf3!?+/-) 23...Rb4= 24.Nf5 Rc4 25.Ne3 (25.Ne7 Kg7=) 25...Rd4 26.g3 (26.Rfe1 Rd8=) 26…Nd5 ½–½. Nokarookoff – touchdown, ChessWorld.net, 2006.

9.ed4 d5 10.0-0=.

9.Bd4 a6 10.0-0 ab5 11.cb5 c5 (11...Nc5 12.Nc3=) 12.Bb2 (12.bc6 bc6 13.a4 Re8=) 12...Nb6 (12...d5 13.Nc3=) 13.a4 Be6 14.Nbd2 Qc8 (14...Ra5 15.Ra3=) 15.a5+= Nbd5 16.Ng5 Nc7 (16...Qe8 17.a6+=) 17.a6 (17.Ne6 Qe6 18.Qc2 Nfd5+/-) 17...ba6 18.b6 (18.ba6 d5=) 18...Nce8 (18...Ncd5 19.Nc4 Qb7 20.Rb1+=) 19.Ne6= fe6 20.Qb3 Qb7 (better is 20...Rf7=) 21.Qe6+- Kh8 22.Nc4 (22.Rfb1 d5+-) 22...Nd5 (22...Rb8!?+/-) 23.Na5+- Qf7 24.Bg7 Kg7 25.b7 Rb8 (25...Qe6?? 26.ba8Q (26.ba8R?! Ne3 27.Ra7 Kh6 28.fe3 Qe3 29.Kh1 Rf1 30.Bf1 Qc3=) 26...Nb4 27.Bc4+- (27.Ba6?! Nc7 28.Qa7 Nba6+-)) 26.Qf7 Rf7 (26...Kf7?? 27.Bc4 (27.Ba6?! Nb4+-) 27...Ke6 28.e4+- (28.Ba6?! Nb4 29.Be2 d5+/-)) 27.Bc4 Nec7 (27...Nb4 28.Bf7 Kf7+-) 28.Rfd1 1–0. mtr – tzzgv, internet, 2009.

9.Nd4 Nc5 10.Nc3 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Re8 14.0-0 Be6 15.Ne6 Re6 16.Bf3 Nfe4 17.Ne4 Ne4 18.Qc2 Nc5 19.Bd4 b6 20.Ra1 Re8 21.Bc6 Rf8 22.Bg7 Kg7 23.Ra7 Qf6 24.g3 Rc8 25.h4 h5 26.Kg2 Qe5 27.Qe2 Ne4 28.Qf3 Nf6 29.Qf4 Qc5 30.Qd4 Qf5 31.e4 Qg4 32.Ra3 Qe6 33.Rf3 Qe5 34.Qe5 de5 35.Ra3 Ne8 36.Ra7 Nd6 37.Bd5 Kf6 38.f4 ef4 39.gf4 Ke7 40.Kf3 Ke8 41.Ke3 f6 (better is 41...Ke7!?+/-) 42.Be6 Rb8 1–0. Kaenel,Hansjuerg (2365) – Ilic,Zoran (2380), Zuerich Klee Memorial, 1989. (=1.Nf3 g6 2.d4 Bg7 3.b4 d6 4.e3 Nd7 5.Bb2 Ngf6 6.c4 0-0 7.Be2 e5 8.b5)

9.Nd4 Nc5 10.Nc3 Be6 11.0-0 Qd7 12.Nb3 Nb3 13.ab3 Ne4 14.Qc1 Nc5 15.Ra3 a5 16.Na4 Na4 17.Bg7 Kg7 18.Ra4 c6 19.bc6 bc6 20.Qc3 Kg8 21.Rfa1 Rfb8 22.Ra5 Ra5 23.Ra5 (23.Qa5?! Rb3 24.Qa8 Kg7+=) 23...d5 24.f3 Qb7 25.Ra3 Qe7 26.c5 Qb7 27.Kf2 Qc7 28.g3 h5 29.b4 Qb7 30.Ra4 h4 31.b5 hg3 32.hg3 g5? (32...Qe7 33.bc6 Bf5 34.Rh4+-) 33.b6 (33.Qf6 Ra8 34.Qg5 Kf8+-) 33...Qe7 34.Ra7 Bd7 35.Qd4 Qe6 36.g4 Bc8 37.Bd3 f6 (37...Bb7+-) 38.Bf5 Qe5 39.Qe5 fe5 40.Bc8 d4 41.b7 1–0. Kaenel,Hansjuerg – Martinez,Ibrahim, Dubai, 1986. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 0-0 6.d4 Nbd7 7.Be2 e5 8.b5)

9.Nd4 Ne4 10.Qc2 Ndc5 11.0-0 Qe7 12.Nc3 Bd7 13.Rad1 Nc3 14.Bc3 Rae8 15.Nb3 Bc3 (15...Bf5 16.Qc1 Nb3 17.ab3 Bc3 18.Qc3+=) 16.Qc3 Ne4 17.Qc2 f5 18.Bf3 b6 19.Rd4 Rf6 20.Nc1 c5 21.bc6 Bc6 22.Ne2 Re6 23.Nf4 Re5 24.Rfd1 Rd8 25.Nd3 Ra5 26.Qb2 Ba4 27.Nb4 Bd1 28.Nc6 Qf6 29.Bd1 (worse is 29.Nd8 Bf3 30.gf3 Ng5–/+ (30...Qd8?! 31.fe4 fe4 32.Re4+=)) 29...Rc5 30.Nd8 Qd8 31.Bf3 Nf6 32.Qd2 Ne8 33.h4 Qf6 34.g3 Kg7 35.Bd1 Ra5 36.Bf3 Kf8 (better is 36...Rc5!?=) 37.Bc6+/- Qe7 38.Be8 Ke8 39.Rd6 Ra2?? (better is 39...Rc5+-) 40.Qd5 (40.Qa2?! Qd6 41.Qa7 h5+/-) 40...Ra1 41.Kh2 Kf8 42.Rd8 (42.Rd8 Kg7 43.Rd7 Qd7 44.Qd7 Kh6 45.f3+-) 1–0. Kaenel,Hansjuerg (2380) – Domont,Alexandre (2405), SUI–chT Switzerland, 2004. (=1.Nf3 g6 2.d4 Bg7 3.e3 d6 4.c4 Nf6 5.b4 Nbd7 6.Bb2 0-0 7.Be2 e5 8.b5 ed4)

9.Nfd2 d5 10.0-0 Nb6 11.a4 dc4 12.Nc4 Nc4 13.Bc4 Nd5 (13...Re8 14.Nc3+=) 14.Bd5 Qd5 15.Qc2 Bf5 16.Qc7 Rac8 (16...Rfc8 17.Qg3=) 17.Qa5 Rc2 18.Ba3 a6? (better 18...Ra8 19.Rc1 Bd4 20.Rc2 Ba1=) 19.Bf8+- Bf8 20.Nc3 Qc4 21.ba6 ba6 (21...b6 22.Qe5 Rc3 23.a7+-) 22.Nd5 Be6 (22...Kg7+-) 23.Nf6 Kg7 24.Qe5 Kh8 25.d5 Bf5 26.Ne4 Bg7 (26...f6 27.Nf6 Qb4 28.Ne8 Kg8+-) 27.Qe8 Bf8 28.Qf8 1–0. DEFFM – GuestWSNL, freechess.org, 2018.

10.Nc3 Nf8 11.a4 h5 12.a5 a6 13.0-0 Bf5 14.ba6 ba6 15.Nd5 Nd5 16.cd5 Qg5 17.Re1 Nh7 18.Qc2 Nf6 19.Qc6 Bh3 20.Bf1 h4 21.Kh1 Rab8 22.Qc2 Bc8= 23.Ba3 h3 24.g3 Nd5 25.Rab1 Rb1 26.Nb1 Qf5 27.Kg1 Bh6 28.Nd2 Re6 29.Qb1 Nc3–/+ 30.Qc2 Nd5 31.Qb3 Rf6+= 32.f4 ef3–/+ 33.Kf2 Be6 34.Bd3 Qg4–/+ 35.Be4? Ne3-+ 36.Qb8 Kh7 37.Qc7 Qg5 38.Nf3 Ng4 39.Kg1 Qa5 40.Qa5+- (40.Qa5 d5 41.Bd5+-) 1–0. Kaenel,Hansjuerg (2395) – Schwarz,U, Casino Open, Baden SUI, 1999. (=1.Nf3 g6 2.d4 Bg7 3.c4 d6 4.e3 Nf6 5.b4 0-0 6.Bb2 e5 7.b5 Nbd7 8.Be2)

10.Nc3 Nf8 11.a4 h5 12.a5 Bf5 13.h3 h4 14.a6 b6 15.Na2 N6d7 16.Nb4 Qg5 17.Kf1 Nh7 18.Ra3 Nhf6 19.Kg1 Qh6 20.Nb1 Nh5 (20...Qg5 21.Kh2+/-) 21.Bc1 (21.Bh5 gh5 22.Kh2 Be6+/-) 21...Nhf6 22.Nc3 g5 23.Ncd5 Nd5 24.cd5 Nf6 25.Rc3 Re7 26.Bd2 Qg6 27.Be1 Rd7 28.g4 hg3 29.fg3 g4 30.h4 Bh6 31.Kg2 c5 (better is 31...Qh5!?+/-) 32.dc6+- Rc7 33.Rf1 d5 34.Qb3 Rd8 35.Rc2 Be6 36.Na2 Ne8 37.Bb4 Ng7 38.Be1 Nf5 (38...Ne8 39.Bd2 Nd6+/-) 39.Bf2 Kh7 40.Nc1 Rg8 41.Rh1 ½–½. Kaenel,Hansjuerg (2365) – Gallagher,Joseph G (2445), Zuerich Klee Memorial, 1989. (=1.Nf3 d6 2.d4 g6 3.e3 Bg7 4.b4 Nd7 5.Bb2 Ngf6 6.c4 0-0 7.Be2 e5 8.b5)

10.Nc3 Nf8 11.a4 h5 12.a5 h4 13.0-0 g5 14.a6 ba6+= 15.ba6 g4 16.Qc2+/- Bh6 17.g3 hg3+= 18.hg3 Bf5 19.Kg2 N8h7 20.Rh1 Bg7 21.Nb3 Ng5 22.Na5 Bd7 23.Nb5 Nh3 24.d5 Nh5 25.Nc6 Bc6+/- 26.dc6 f5 27.Rad1 Qe7? 28.c5!+- Be5? 29.cd6 cd6 30.Be5 de5 31.Rd7 Qg5 32.Qc4 Kh8 33.Nd6 Rf8 34.Nf7 Rf7 35.Qf7 Nf6 36.Rhd1 Nd7 37.Rd7 Qh6 38.c7 Ng5 (38...Nf4 39.gf4 Qh1 40.Kh1 ef4 41.Qg7#) 1–0. Miltner,Arndt – Puth,Dieter, Ch Germany, Gladenbach (Germany), 1997. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.c4 Nbd7 7.Be2 e5 8.b5)

10.Nc3 h5 11.a4 Nf8 12.a5 h4 13.h3 Bf5 14.Bg4 Ng4 15.hg4 Be6 16.a6 ba6 17.Ra6 Bc8 18.Ra2 a6 19.Nde4 Bb7 20.Qf3 ab5 21.Ra8 Qa8 22.Nf6 Bf6 23.Qf6 Bg2 24.Rh4 Nh7 25.Rh7 Kh7 26.d5 bc4 27.Ne4! c3 28.Qf7 Kh6 29.g5 Kh5 30.Ng3 Kg4 31.Qf4 Kh3 32.Ne4!! Qa1 33.Ba1 Be4 34.Qg3 1–0. Doctor? 3.0 – EXchess 3.11, 2004.

10.Nc3 h5 11.a4 Nf8 12.Qc2 Bf5 13.a5 Ne6 14.Qa4 (worse is 14.Nce4 Ne4 15.Ne4 d5 16.cd5 Nd4 17.Bd4 Bd4 18.ed4 Be4–/+ (18...Re4?! 19.0-0+=)) 14...a6 15.ba6 ba6 16.0-0 c5 17.d5 Ng5 18.Rab1 Ng4 19.Na2 Bb2 20.Rb2 Qf6 21.Rb6 Qe5 22.Bg4 hg4 23.Qb3 Qh8? (23...Re7 24.Rb1+/-) 24.Nc3 (24.Rd6 Qe5 25.Rb6 Qe7+-) 24...Qh4 (24...Qe5 25.Rb1+/-) 25.Kh1 (25.Rd6 Nf3 26.gf3 gf3 27.Nce4 Re4 28.Kh1-+) 25...Kh7+/- 26.g3 Qh3 27.Rg1 (27.Rd6 Nf3 28.Nf3 ef3 29.Rg1 Rh8 30.Qb8 Qh2 31.Kh2 Kg7 32.Qh8 Rh8#) 27...Nf3 28.Nf1 Ng1 29.Kg1 Qh6 30.Rd6 Qg7 31.Rb6 Qe5 32.Na4 Qa1 33.Nc5 Qa5 34.Nb7 Qe1 35.Nd6 Rf8 36.Rb7 Kg8 37.Nf5?? (better is 37.Nf7 Qa1 38.Nh6 Kh8 39.Qb6+- (39.Nf5?! Qf6+/-)) 37...gf5= 38.Qb2 f6?? (better is 38...Qd1+=) 39.Qb6+- Rac8 (39...Rf7 40.Rf7 Kf7 41.Qb7 Kg6 42.Qa8 Qb4 43.Qe8 Kh6+-) 40.Qe6 Kh8 41.Qe7 (41.Qe7 Qf2 42.Kf2 Rc7 43.Qc7 Rf7 44.Qf7 f4 45.Qe8#) 1–0. Kaenel,Hansjuerg (2345) – Chiong,Luiz (2365), Grand Prix Suisse op, 1991. (=1.Nf3 d6 2.d4 Nf6 3.e3 g6 4.c4 Bg7 5.b4 0-0 6.Bb2 Nbd7 7.Be2 e5 8.b5)

9.0-0 e4 10.Nfd2 Nf8 11.Nc3 h5 (11...a6 12.a4+=) 12.Qb3 N8h7 13.Rac1 Bf5 14.Rfe1 Ng4 15.Nd5 Qh4?? (better 15...c6 16.Nb4 cb5 17.cb5 Qh4 18.Bg4 hg4+=) 16.Bg4+- hg4 (16...Qg4 17.Nc7 Ng5 18.Kh1+- (18.Na8?! Nf3 19.Kh1 Ne1 20.Re1 Ra8+-)) 17.Nc7 Ng5 (17...Rec8 18.Na8 Ra8 19.c5 dc5 20.dc5+-) 18.Ne8 (18.Na8?! Nf3 19.Nf3 gf3+-) 18...Re8 19.Qa3 Bf8 20.g3 (better 20.Red1!? Nf3 21.Nf3 gf3=) 20...Qh3 21.Kh1 (21.Qa7?? Nf3 22.Nf3 gf3 23.Qb7 Qg2) 21...Nf3 22.Nf3 gf3 23.Rg1 Bg4 24.Qa7?? (better 24.d5+-) 24...Re7+= 25.d5 (25.d5 f5 26.Bf6=) 1–0. DEFFM – DavidMorphy, freechess.org, 2018.

9.Nc3 c6 10.0-0 e4 11.Nd2 Nf8 (11...c5 12.Re1=) 12.a4 h5 13.a5 a6 14.bc6 bc6 15.Qa4 (15.Qc2 h4+=) 15...Qc7 16.Rab1 Bf5 17.Ba3 N8d7 18.Rfc1 Bf8 19.Rb3 Reb8 20.Rcb1 Rb3 21.Rb3 Rb8 22.Rb8 Nb8 23.Qb4 Nbd7 24.Na4 c5 25.Qc3 Qc6 26.Bd1 cd4 27.Qd4 Be7 28.Nb6 Nb6 29.Qb6 Bd7 30.Bc2 Kh7 (30...Kg7 31.Bb2+/-) 31.Bb2 Ne8 32.Qc6 Bc6+= 33.Be4 Be4 34.Ne4 f5 35.Nd2 Nf6 36.Ba3 Nd7 37.f4 Nb8 38.Nb3 Nc6 39.Bb2 Kg8 40.Kf2 Kf7 41.Kf3 Ke6 42.e4 fe4 43.Ke4 Bd8 44.Bc3 Ne7 45.Nd4 Kd7 46.g3 Nc6 47.Nb3 Ne7 48.Bf6 Nf5 49.Bd8+- Kd8 50.Nd4 Ne7 51.h3 Kd7 52.g4 hg4 53.hg4 1–0. Kaenel,Hansjuerg (2410) – Henze,Reinhard (2200), SUI–chT Switzerland, 2001. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.b5 Re8)

9.Nc3 e4 10.Nd2 Nf8 11.a4 h5 12.a5 a6 13.0-0 h4 14.ba6 ba6 15.Qc2 Bf5 16.Nd5 Ne6 (16...h3 17.g3=) 17.Nb4 (17.Rab1 h3 18.Nf6 Qf6+=) 17...c5 18.Nc6 Qc8 19.d5 Nd8 20.Nd8 Qd8 21.Rfb1 (21.h3 Rb8 22.Ra3 Re7+=) 21...h3= 22.g3 Rb8 23.Bc3 Qc7 24.Ra3 Rb1 25.Qb1 Rb8 26.Rb3 Rb3 27.Qb3 Nd7? (27...Qe7 28.Qb1+=) 28.Bd1?? (better is 28.g4 Bc3 29.Qc3+/-) 28...Bc3+= 29.Qc3 Ne5 30.Be2 g5 31.Kf1 (31.f3 ef3 32.Nf3 Nf3 33.Bf3 Qe7=) 31...Kh7 (31...g4 32.Ke1+=) 32.g4 Bg6 (32...Ng4? 33.Bg4 Bg4 34.Ne4+-) 33.f4 ef3 34.Nf3 (worse is 34.Bf3 Qd8–/+ (34...Nf3?! 35.Nf3 Qe7 36.Kf2=)) 34...Nf3 35.Bf3 Qb8 36.Qf6 Qb3 37.Kf2 (37.Qd6 Bd3 38.Kf2 Qb2 39.Kg3 Qd2 40.Be4 Be4 41.Qh6 Kh6 42.Kh3 Qe3#) 37...Qc4 38.Qd6 Qc2 39.Kg3 Qc3 40.Qe7 (40.Qa6 Bd3 41.Qd3 Qd3 42.Kh3 Qf1 43.Kg3 Qg1 44.Bg2 c4-+) 40...Qe1 41.Kh3 Qf2 42.Qf6 Qf1 43.Kg3 Qg1 44.Kh3 Qf1 ½–½. Kaenel,Hansjuerg (2390) – Gerber,Richard (2355), Saanen, 1994. (=1.Nf3 g6 2.d4 Bg7 3.e3 Nf6 4.b4 d6 5.Bb2 0-0 6.c4 Nbd7 7.Be2 e5 8.b5)

9.Nc3 Qe7 10.0-0 e4 11.Nd2 Nf8 12.Qb3 h5 13.Nd5 Nd5 14.cd5 Qg5 15.Rfc1 Re7 16.Rc2 Nh7 17.Rac1 Bh3 18.Bf1 Nf6 19.Rc7 Rc7 20.Rc7 Re8 21.Qc2 h4 22.Kh1 Bg2 23.Bg2 h3 24.Bh3 Qh4 25.Bg2 Ng4 26.Nf1 Nf2 27.Kg1 Nh3 28.Bh3 Qh3 29.Qf2 Qg4 30.Kh1 f5 31.Qg2 Qh5 32.Ng3 Qd1 33.Qf1 Qg4 34.Qe2 Qh4 35.Qg2 Rf8 36.Ba3 Qd8 37.Rb7 Rf7 38.Rf7 Kf7 39.Bb4 Bf8 40.Qc2 Qe7 41.a4 Bh6 1–0 (time). Kaenel – Forgacs, Bern 1987.

9.Nc3 Qe7 10.0-0 e4 11.Nd2 Nf8 12.Qc2 Bf5 13.Nd5 (13.h3 h6+=) 13...Nd5= 14.cd5 Qg5 (14...Rac8 15.Qa4=) 15.Rfc1 (15.h4 Qh4 16.Qc7 Rac8 17.Qd6 Rc2=) 15...Re7 16.Qb3 h5 17.Rc2 Nh7 18.Rac1 Rc8 19.Ba3 Rd7 20.b6 (20.Qa4!?+=) 20...ab6= 21.Bb5 Rdd8 (21...Bh3 22.g3 Rdd8 23.Ne4=) 22.Rc7 Rc7 23.Rc7 Bh3? (better is 23...h4+/-) 24.Bf1+- Nf6 25.Rb7 Bc8 (25...Bf8 26.Qb6 Rc8 A) 27.Bd6?! Nd5 28.Qb1 Nc3 (28...Bd6?? 29.Ne4 Bf5 30.Ng5 Bb1 31.Rb1+-) 29.Ne4 Ne4+/-; B) 27.Qb1+-) 26.Rb6 (better is 26.Ra7 Bh6 27.Qb6 Nd5 28.Qa5 Ne3 29.Qg5 Bg5 30.Ne4 Nf1 31.Ng5+- (31.Kf1?! Bf4+=)) 26...Ng4?? (better is 26...Bf8+-) 27.Ne4 (27.Rd6 Qh4 28.Rd8 Kh7+=) 27...Qh4 28.h3 Bf5 29.g3 Qe7 30.Nd6 Nf2 31.Nf5 Qe4 32.Ne7 Kh7 33.Kf2 h4 34.Bg2 (34.Bg2 hg3 35.Kg3 Be5 36.de5 Qe5 37.Kf2+-) 1–0. Kaenel,Hansjuerg (2440) – Buhmann,Rainer (2440), Baden–ch Leimen, 2001. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.Be2 Nbd7 7.c4 e5 8.b5 Re8)

9.Nc3 Nf8 10.de5+/- de5 11.Qd8 Rd8 12.Ne5 Be6 13.Nf3 N6d7 14.Na4 Bb2 15.Nb2 a6 16.a4 ab5 17.cb5 Nc5 18.0-0 Ra7 19.Nd4 Rda8 20.Rfc1 Nfd7 21.Rc3 Bd5 22.Rac1 b6 23.f3 f5 24.Bd1 Kf7 25.Bc2 Re8 26.Rd1 Nf6 27.Kf2 Raa8 28.Ne2 c6 29.bc6 Bc6 30.Nc4 Reb8?? (30...Re6 31.Nb6 Ra6 32.Rc5 Rb6+-) 31.Ne5 Kg7 32.Nc6 Rc8 33.Ne7 (33.Ne7 Rc7 34.Nd5 Nd5 35.Rd5+-) 1–0. Kaenel,Hansjuerg (2350) – Forgacs,Gyula (2370), Kobanya op, 1988. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.c4 Nbd7 7.Be2 e5 8.b5)

9.Nc3 h5 10.a4 e4 11.Nd2 c6 12.0-0 a5 13.bc6 bc6 14.Ba3 Nf8 15.Rb1 d5 16.Qb3 Bg4 17.Bg4 hg4 18.Qb7 Rc8 19.Rfc1 Ne6 20.cd5 cd5 21.Nb5 Rb8 22.Qc6 Bf8 23.Bf8 Rf8 24.Nb3 Kg7 25.Qc3 Ra8 26.Nc5 Ng5 27.Nb7 Qd7 28.Qc7 Rac8 29.Qd7 Nd7 30.Nc3 Nf6 31.Na5 Rh8 32.Ne2 Ra8 33.Rb5 Rh6 34.Ng3 Rah8 35.Nf1 Nf3 36.gf3 gf3 37.Rc7 R8h7 38.Rbb7 Kg8 39.Rc8 Kg7 40.Nc6 Ng4 41.Ne5 Ne5 42.de5 1–0. Kaenel – Pikula, Biel 1997.

9.de5 Ng4 10.h3 Nge5 11.Qc2 (11.Bd4 Nb6=) 11...Nc5 12.Ne5 de5 (12...Bf5 13.Qd2 de5 14.Qd8 Rad8 15.Nc3=+) 13.0-0 (better 13.Nc3!?=) 13...Bf5 14.Qc1 Nd3 (14...Qg5 15.Kh2–/+) 15.Bd3=+ Qd3 16.Rd1 Qe4 17.Nd2 Qh4 18.Nf3 Qe7 19.Qc3 f6 (19...a6 20.a4=) 20.Nh4 (20.c5 c6=) 20...Be6=+ 21.e4 Bf8 22.Nf3 Red8 23.Rd2 Rd2 24.Nd2 Qc5 (24...Rd8 25.Nb3 Qb4 26.Qb4 Bb4=+) 25.Nb3 (better 25.Qf3!? Bg7 26.Rc1=+) 25...Qc4–/+ 26.Rc1? (26.Qf3 Bg7–/+) 26...Qc3 (better 26...Qe4!? 27.Nc5 Bc5 28.Qc5 Rc8-+) 27.Rc3–/+ Bb3 28.Rb3 Rd8 29.f4 Bc5 30.Kh2 (30.Kf1 ef4 31.Bf6 Rd2–/+) 30...Re8 (30...ef4!? 31.Bf6 Rd1–/+) 31.fe5=+ fe5 32.Rf3 (32.Rd3!?=+) 32...Bd4–/+ 33.Bc1 Re6 (33...c6!?–/+) 34.Bh6 Bc5 35.a4 Be7 36.Rc3 Bd6 (36...c6 37.Rb3–/+) 37.Rf3 (37.Be3 Re8=) 37...Be7 38.Rc3 g5?? (better 38...c6 39.Rb3 c5–/+) 39.Rc7+- Kf7? (better 39...Bd6 40.Rc8 Kf7 41.Bg5 Re8+-) 40.Bg5+- 1–0. GuestVVXJ – GuestPHGJ, freechess.org, 2017.

10.Nd4 Nc5 11.0-0 h5 12.Nb3 Ne6 13.Qc2 Ng5 14.Rad1 Ng4 15.Nd5 Bf5 16.Qc1 Nf6 17.Qa1 Ngh7 18.Bf3 Be4 (18...Bc2!? 19.Nf6 Bf6 20.Bf6 Qf6+/-) 19.Be4+- Re4 20.c5 Re6 21.Nf4 Re8 22.cd6 cd6 23.Bd4 a6 24.b6 a5 25.a4 Nf8 26.Qa3 Ne6 27.Ne6 Re6 28.Qb2 Qd7 29.Qa1 Rc8 30.Rc1 Ne8 31.Rc8 Qc8 32.Rc1 Qa8 33.Qc3 Bd4 34.Nd4 Re5 35.Qc8 Qa6 36.Nf3 Re4 37.Ng5 Re5 38.f4 (38.Qd7 Rg5 39.Qe8 Kg7+-) 38...Re7 (38...Qb6 39.fe5 Qe3 40.Kh1 Kg7 41.Nf7 de5+-) 39.Qd8 Re3 40.Qd7 (40.Qd7 Re1 41.Re1 Qb6 42.Kh1+-) 1–0. Kaenel,Hansjuerg (2385) – Rosenthal,Jon (2200), Open, Winterthur SUI, 2007. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.b5 e5 8.Be2)

10.Nd4 Nc5 11.0-0 h5 12.h3 Nfe4 13.Ne4 Ne4 14.Qc2 Bd7 15.Bf3 Qe7 16.Rad1 a6 17.a4 Rab8 18.Ba1 a5 19.Rfe1 b6 20.Ne2 Ba1 21.Ra1 Bf5 22.Nd4 Qg5 23.Rad1 Nc5 24.Nf5 Qf5 25.Qf5 gf5 26.Bh5 Na4 27.Bf3 Re5 28.Rd4 Rbe8 29.Kf1 Kg7 30.Bc6 R8e7 31.g3 Nc3 32.Rc1 Na2 33.Rcd1 Rc5 34.Bf3 Nb4 35.R1d2 Kf6 36.Ke2 d5 37.Bd5 Nd5 38.Rd5 Rc4 39.Kf3 c6 40.bc6 Rc6 41.h4 a4 42.R2d4 Re4 43.Rf5 Kf5 44.Re4 b5 45.g4 Kf6 46.g5 Kg7 47.Re7 Ra6 48.h5 a3 49.g6 b4 50.Rf7 Kg8 51.Rb7? a2 52.Rb8+= Kg7 53.Rb7 Kf6 54.g7 Ra8 55.Ra7? Ra7-+ 56.g8Q a1Q 57.Qd8 Ke6 58.Qb6 Kf7 59.Qg6 Kf8 60.Qd6 Re7 61.Qd8 Kf7 62.Qd5 Kg7 63.h6 Kg6 64.Qd3 Kg5 65.Kg2 Qa8 66.f3 Qa2 67.Kg3 Kh6 68.Qd6 Qe6 (68...Qe6 69.Qf4 Kh7 70.Qb4 Qe3 71.Qh4 Kg6 72.Qg4 Kf6 73.Qf4 Qf4 74.Kf4 Re8-+) 0–1. Kaenel,Hansjuerg (2310) – Epishin,Vladimir (2620), Bern op, 1991. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.b5)

10.Nd4 Nc5 11.0-0 h5 12.h3 Nfe4 13.Ne4 Ne4 14.Bf3 Bd7 15.Qc2 Qe7 16.Rfd1 Qh4 17.a4 Rad8 18.Rab1 c5 19.bc6 bc6 20.Ba1 d5 21.cd5 cd5 22.Nb5 Ng5 23.Qe2 Ba1 24.Ra1 Bh3 25.gh3 Nh3= 26.Kf1 Nf4 27.Qd2 Qh3 28.Kg1 Qf3 29.ef4 Qg4 30.Kh2 Qh4 31.Kg2 Qg4 32.Kh1 Re4 33.Ra3 Re2 34.Qd4 Rf2 35.Qf2 Qd1 36.Qg1 Qc2 37.Qa7? Qe4 38.Kg1 Rc8=+ 39.Qf7 Kf7-+ 40.Nd6 Kf6 41.Ne4 de4 42.Kf2 Kf5 43.Ke3 h4 44.a5 h3 45.a6 h2 46.Ra5 Kg4 47.Ra1 Ra8 48.Rh1 Kh3 49.Kf2 Ra6 50.Ke3 Rf6 51.Ke4 Kg2 52.Rd1 h1Q 53.Rh1= Kh1 54.Ke5 Rf5 55.Ke6 Kg2 56.Kd6 Kf3 57.Kc6 Kf4 58.Kc7 ½–½. orane (2095) – VICBAD (2465), Caissa.com, 2004.

10.Nd4 Nc5 11.0-0 h5 12.h3 Nfe4 13.Ne4 Ne4 14.Bf3 Qe7 15.Qc2 Bd7 16.Rfd1 a5 17.Ne2 Nf2 (17...Bb2!? 18.Qb2 Bf5+=) 18.Kf2+/- Qe3 19.Kf1 Bb2 20.Qb2 Bh3 21.Qb3 Bg2? (better is 21...Bg4 22.Bg4 hg4 23.Qe3 Re3+/-) 22.Kg2+- Qg5 23.Kf1?? (better is 23.Kf2+-) 23...Re3+/- 24.Rd3 Re2 25.Ke2 Qe5 26.Re3 Qa1 27.Bb7 Rb8 28.Bd5 Qd4 29.Qc3 (29.Re7 Rf8 A) 30.Rc7 Re8 31.Kf1 Qa1 32.Kf2 Qe1 33.Kf3 Re2 34.Bf7 Kf8 35.Rc8 Kg7 36.Qc3 Qc3 (36...Kf7?! 37.Rc7 Ke6 38.Qe1 Re1 39.Rg7+=) 37.Ke2 Kf7-+; B) 30.Qe3 Qb2 31.Qd2+-) 29...Qc3+/- 30.Rc3 Re8 31.Kf2 Kg7 32.Ra3 f5 33.Ra5 g5? (better is 33...Kf6+/-) 34.Ra7+- Re7 (34...Kf6 35.Rc7 Rb8+-) 35.b6! (35.b6 Re8 36.bc7+-) 1–0. Kaenel,Hansjuerg (2440) – Bischoff,Dieter (2220), Baden–ch Leimen, 2001. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.b5 Re8 9.Nc3 ed4)

10.Nd4 Nc5 11.0-0 h5 12.h3 Nfe4 13.Ne4 Ne4 14.Bf3 Qe7 15.Qc2 Bd7 16.Rfd1 Rab8 17.Rac1 b6 18.Ne2 Nf2 19.Kf2 Qe3 20.Kf1 Bf5 21.Qd2 Qd2 22.Rd2 Bh6 23.Rcd1 Bd2 24.Rd2 Be4 25.Nf4 Bf3 26.gf3 Kf8 27.Nd5 Rbc8 28.Kf2 Re6 29.h4 Ree8 30.a4 Re6 31.Nb4 Ra8 32.Bc3 Rae8 33.Nd5 Rc8 34.Bd4 c6 35.bc6 Rc6 36.Ne3 f5 37.f4 Kf7 38.Kf3 Re8 39.Bb2 Re4 40.Rd3 Re6 41.Ba3 Ke8 42.Bb4 Kf7 43.Ra3 Re4 44.a5 ba5 45.Ra5 a6 46.Rd5 Rb6 47.Bd2 Ke6 48.Rd3 Rb1 49.Ba5 Rh1 50.Kg3 Rg1 51.Kf3 Rh1 52.Kg3 ½–½. Kaenel,Hansjuerg (2440) – Mueller,Matthias (2375), Baden–ch Leimen, 2001. (=1.Nf3 g6 2.d4 Nf6 3.e3 Bg7 4.b4 0-0 5.c4 d6 6.Bb2 e5 7.b5 Nbd7 8.Be2 Re8 9.Nc3 ed4)

9.Nfd2 Re8 10.Nc3 Qe7 11.a4 c6 12.g4 d5 13.c5 Nc5 14.bc5 Bg4 15.Rg1 h5 16.Bf1 Qd7 17.a5 Bf5 18.Nb3 a6 19.Na4 Rad8 20.0-0-0 Qc7 21.Be2 Qh2 22.Rdf1 Qc7 23.Qd1 Qe7 24.Bc3 Kh7 25.Na1 Rh8 26.Nc2 Kg8 27.Nb4 Bh3 28.Ba6 Bf1 29.Bf1 Ng4 30.Qe2 Qf6 31.Rg2 Bh6 32.Nc2 Qh4 33.Be1 Qh1 34.Rg3 f5 35.Bg2 Qh4 36.f3 ef3 37.Bf3 Qe7 38.Bd2 Re8 39.Qd3 Kf7 40.Bg4 hg4 41.Qf1 Kg7 42.Nc3 Bg5 43.Ne2 Qe4 44.Nf4 Rh1 45.Rg1 Rg1 46.Qg1 Bf4 47.ef4 Qd3 48.Ne3 Re4 49.Qe1 Kf7 50.Qh4 Qd4 51.Qh7 Qg7 52.Qh2 Ke6 53.Nc2 d4 54.Qg3 Qh7 55.Qb3 Kf6 56.Kb2 Qh2 57.Qb7 Qd2 58.Qc6 Re6 59.Qc7 d3 60.Qd8 Kg7 0–1. Jaskulski – Fessling, corr JBDDR'4260 DDR, 1981.

9.Nfd2 Re8 10.Nc3 Qe7 11.a4 Nf8 12.h3 h5 13.a5 a6 14.Nb3 c6 15.c5 d5 16.0-0-0 N6h7 17.Rdg1 f5 18.Nd1 Bh6 19.Bc3 Ne6 20.g4 fg4 21.hg4 h4 22.Bd2 Rf8 23.f4 ef3 24.Qg6 Qg7 25.Bd3 Qg6 26.Bg6 Bg5 27.Nf2 Nf6 28.Bf5 Kf7 29.Nh3 Ne4 30.Rh2 Bd8 31.Rf1 Bc7 32.Rhh1 Ng3 33.Rf3 Nh1 34.Be6 Kg7 35.Bf5 Ng3-+ 36.Be1? Nf5 (37.gf5 Rf5-+; 36...Rf5?! 37.gf5 Nf5 38.Kd2–/+) 0–1. Bernhard,Alfred – Pewny,Uwe, Ruhrgebiet, 1998.

9.0-0 e4 10.Nfd2 Nf8 11.Nc3 Bf5 12.a4 h5 13.a5 h4 14.a6 b6 15.c5 h3 16.g3 d5 17.Rfc1 Ne6 18.Bb5 Nd4 19.Qd1 Nb5 20.Nb5 Bd7 21.Qf1 Bb5 22.Qb5 Ng4 23.Bg7 Kg7 24.Nb3 Qf6 25.Qe2 Ne5 26.cb6 Nf3 27.Kh1 cb6 28.Rc7 Rac8 29.Rac1 Rc7 30.Rc7 d4 31.ed4 Nd4 32.Nd4 Qd4 33.Qf1 Rd8 34.Rc1 e3 35.fe3 Qe4 36.Kg1 Qe3 37.Kh1 Rd5 38.Re1 Rf5 (38...Rf5 39.Rd1 Rf1 40.Rf1 Qe4 41.Rf3 Qf3 42.Kg1 Qg2) 0–1. Wright,N (2205) – Bitansky,I (2420), Doeberl Cup, Canberra AUS, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Qc2)

9.Nc3 Nf8 10.h3 e4 11.Nd2 Qe7 12.a4 h5 13.b5 h4 14.Ba3 Bf5 15.c5 dc5 (15...Ne6 16.cd6 cd6 17.Nc4+=) 16.Bc5 Qd7 17.Nc4 Ne6 18.Ba3 (18.Ne5 Qd8 19.Bc4 Nd7 20.Nd7 Qd7+=) 18...Nd4= 19.ed4 e3 20.Qd1 (20.Qb3 ef2 21.Kf1 Nh5 22.Bh5 Qd4=) 20...ef2+= 21.Kf1? (better is 21.Kf2 Ne4 22.Ne4 Qd4 23.Qd4 Bd4 24.Kf1 Ba1 25.Nc5+=) 21...Nh5-+ 22.g4?? (22.Bh5 Re1 23.Kf2 Rd1 24.Rad1 gh5 25.Ne5-+) 22...hg3 23.Kg2 Bh3! (worse is 23...Qd4 24.Qd4 Bd4 25.Bh5 Bc3 26.Bb2 Bb2 27.Nb2 gh5 28.Kg3-+; 23...Bd4?! 24.Bg4 Rad8 25.Bb2-+) 24.Rh3 Nf4 (24...Nf4 25.Kf3 Qh3-+) 0–1. Monroy,C (2380) – Kozakov,M (2445), Breizh Masters A, Guingamp FRA, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.Qc2)

9.a3 b6 10.0-0 Bb7 11.Qc2 Re8 12.Rac1 Qc8 (12...ab4 13.ab4 ed4 14.ed4=) 13.Rfd1 ed4 14.Nd4 Ne5 (14...ab4 15.ab4 Ne5 16.Ndb5=) 15.h3 Nc6 16.Nd5 (16.Nc6 Bc6 17.b5 Be4 18.Ne4 Ne4 19.Bg7 Kg7+=) 16...Nd4 (16...ab4 17.Nc6 Bc6 18.Bf6 Bd5 19.Bg7 Be4+/-) 17.Bd4+= Nd7 18.Bg7 Kg7 19.Qc3 Kg8 20.Bg4 f5 21.Be2 Kf7 22.c5 ab4 23.ab4 Bd5 24.Rd5 Nf6? 25.Bc4+- Ke7? 26.Rdd1 bc5+/- 27.bc5 Rd8 28.Bd5 Ra6 29.Bb3 Rc6 30.cd6+- Rdd6 31.Qe5 Kf8 32.Rc6 Rc6+/- 33.Bd5 Rd6 34.Rd4 Qd8 35.Bb3 Rd4 36.ed4 Qd6 37.Qe3 Ne4? 38.Qh6+/- Ke8 39.Qh7 Nd2? 40.Qg8 Ke7 41.Qf7 Kd8 42.Ba4 c6+/- 43.Qg8 Kc7 44.Qf7 Kd8 45.Qg8 Kc7 46.Qg7 Kb6 47.Bd1 Qd5 48.Qe5 Qc4 49.Be2 Qc3? 50.Kh2 Nb3 51.Qe3 Qb4 52.d5 Kb7? 53.dc6+- Kc6 54.Qe8 Kc7 55.Qf7 Kd8 56.Qg6 Nd4 57.Bd3 Qc5 58.Qg5 Ke8 59.Qf4 Ke7 60.Qg5 Kf7?? 61.Qf4 (61.Qf4 Ke7 62.h4+-) 1–0. Rodgaard,John (2360) – Hirtsgaard,Niels, Politiken Cup, 1989.

9.a3 b6 10.0-0+= Bb7 11.Qc2 Re8 12.Rad1 ed4= 13.Nd4 ab4 14.ab4 Ne4 15.Bf3 Nc3 16.Bc3 (16.Qc3? Bf3 17.gf3 c5-+) 16...Bf3 17.Nf3 Bc3 18.Qc3 Qf6 19.Nd4 Ra2 20.Rd2 Rd2 21.Qd2 Ra8 22.h3 Nf8 23.f4 Ne6 24.f5 Nd4 25.fg6 Qg6 26.ed4+= Ra3 27.h4 Rd3= 28.Qf4 h5 29.Kh2 Qg7=+ 30.Qf5 Rd4 31.Qc8 Kh7 32.Qc7?? Rh4-+ 33.Kg1 Qd4 34.Rf2 Qd1 35.Rf1=+ Qd4 36.Rf2 Qd1 37.Rf1=+ Rh1 38.Kh1 Qf1 39.Kh2 Qf4 40.Kh1 Qf1 41.Kh2= Qf4 42.Kh1 Qh4 43.Kg1 Qd4 44.Kh2 Kg6 45.Qc8 Qh4-+ 46.Kg1 Qe1 47.Kh2 Qb4 48.Qg8 Kf6 49.Qh8 Ke7 50.Qh5 Qc4 51.Qg5 Kd7 52.Qf5 Kc7 53.Qf6 b5 54.Qe7 Kc6 55.Qe8 Kc5 56.Qc8 Kb4 57.Qd7 Qh4 58.Kg1 Qe1 59.Kh2 Qe5 60.Kh1 f5 61.Qc7 Kb3 62.Qc6 b4 63.Qf3 Ka2 64.Qf2 Qb2 65.Qa7 Kb1 66.Qa5 Qc1 67.Kh2 Qf4 68.Kh1 b3 69.g3 Qe4 70.Kh2 b2 0–1. Vasut,Karel (2135) – Vlk,Miroslav (2115), CZE–chT2d, 2004.

9.a3 b6 10.0-0+= Bb7 11.Qc2 Re8 12.d5 Re7+=.

9.a3 ed4 10.Nd4 c5 11.bc5 dc5 12.Ndb5=.

9.a3 Re8 10.0-0 ed4 11.Nd4 Ne5 12.h3 Qe7 13.Qb3 h5 (13...Bd7 14.Nd5 Nd5 15.cd5=) 14.Rac1 Nh7? (better 14...Qd7+=) 15.Nd5+- Qd8 16.f4 (16.Nb5 c6 17.Nbc7 cd5 A) worse 18.Ne8 dc4 (18...Qe8?! 19.cd5 Nf6 20.ba5=) 19.Bc4 a4=+; B) 18.Na8+=) 16...a4 17.Qc2 (17.Qa2 c6 18.fe5 de5+-) 17...Nc6+= 18.Nb5 Bf5 19.Qd2 Rc8 20.Bg7 Kg7 21.Bd1 Ne7 22.Ba4 Nd5 23.cd5 Bd7 24.Nc3 Ba4 25.Na4 Ra8 26.Qc3 (26.Nc3 Nf6+-) 26...Nf6 27.Nb2 Kg8 28.Qd3 (worse 28.Qc7 Nd5 29.Qb7 Ne3=) 28...Qe7 29.Rc3 Ne4 30.Rb3 Qh4 31.Nc4 Qg3 32.Nd2 f5 33.Ne4 Re4 34.Qc3 Re7 35.Rf3 Qh4 36.Kh2 Rf7 37.Rg3 Kh7 38.Qc4 Qe7 39.Rc3 Re8 40.Qb5 b6 (40...Rb8 41.Qa4+-) 41.a4 (41.Rc7 Qc7 42.Qe8 Qd7+-) 41...Qd7 42.Rc6 Ra8 43.a5 ba5 44.ba5 Qc8 45.a6 Ra7 46.Qc4 Re7? (better 46...h4 47.Rg5 Qe8+-) 47.Rd6!! Rg7 (47...cd6 48.Qc6 Double attack (48.Qc8 Pinning; 48.Qc8 Deflection; 48.Qc6 Decoy; 48.Qc8 Clearance)) 48.Rc6 (48.Re6 Qg8+-) 48...Qa8 (48...Qe8+-) 49.e4 fe4 (49...Qf8+-) 50.Qe4 Ra6 51.Rgg6!! Rc6 (51...Rg6 52.Qg6 Mate attack) 52.Re6 Kg8 1–0. Soloviova,Elizaveta (2095) – Remoli Sargues,Lidia (1890), EU–ch U14 Girls, 2007. (=1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 0-0 5.e3 d6 6.Be2 Nbd7 7.b4 e5 8.Bb2 a5)

9.b5 b6 10.a4 Bb7 11.0-0 Re8 12.Qc2 ed4 13.Nd4 Nc5 14.Bf3 Bf3 15.Nf3 (worse 15.gf3 Qd7=+) 15...Qd7 16.Rfd1 Qg4 17.Ne2 (17.Nd5 Nd5 18.cd5 Bb2 19.Qb2 A) 19...Na4? 20.Ra4 Qa4 21.Rd4 Qd4 22.Nd4+- (22.ed4?! a4+=); B) 19...Qb4+=) 17...Re4 18.Nfd4 Qh4 19.Ng3 Ree8 20.Nf3 Qh6 21.h3 Nfd7 22.Bg7 Qg7 23.Ne2 f5 24.Nf4 Nf6 25.Nd4 Re4 26.Rac1 Rae8 27.Nd3 (27.Nb3 Nb3 28.Qb3 Qf7=) 27...Ncd7 (27...Nd3 28.Rd3 f4 29.ef4=) 28.Nf4 Qf7 (28...Nc5 29.Rd2=) 29.Nde2 (29.Nf3 h6+=) 29...Nc5= 30.Nd3 Ncd7 31.Ndf4 R4e5 (31...Nc5 32.Rd4=) 32.Nd3 R5e7 (32...Re4 33.Kh2=) 33.Ndf4 Nc5 (33...Re5 34.Nc3=) 34.Nd4 Rf8 35.Nc6 Ree8 36.Nd5 Nd5 37.Rd5 (37.cd5!? f4 38.ef4 Qf4 39.Rd4=) 37...f4=+ 38.ef4 Qf4 39.Rd4 (39.Rcd1 Re6=+) 39...Qf5–/+ 40.Qf5 Rf5 41.f4 (41.Rcd1!?–/+) 41...Nb3-+ 42.Rf1? (better 42.Rcd1-+) 42...Nd4 43.Nd4 Rc5 0–1. Morriss,P (2075) – Arakhamia_Grant,K (2370), 122nd ch–SCO, 2015.

9.b5 c5 10.de5 de5 11.Qd6 (11.e4 a4+=) 11...Re8 (11...e4 12.Nd2=) 12.Rd1 (12.e4 Re6 13.Qd3 a4+=) 12...Bf8 (12...e4 13.Nd2=) 13.Qd2 b6 (13...e4 14.Ng5=) 14.Nd5 (14.0-0 Bg7+=) 14...Ne4 (14...Bg7 15.0-0+=) 15.Qc2+/- f5 (15...Nd6 16.0-0+/-) 16.g4 Ndf6 (16...fg4 17.Qe4 gf3 18.Bf3+/-) 17.Ne5 Nd5 18.Rd5 Qh4 19.Bf3 Ng5 (19...Bg7 20.h3+/-) 20.Rd3 (better is 20.Bg2!?+/-) 20...Nf3+= 21.Nf3 Qe7 (21...Qg4?? 22.Qc3+-) 22.Qc3 Bg7 23.Qg7 Qg7 24.Bg7 Bb7 (24...fg4 25.Nd2 Kg7+=) 25.Ng5 (better is 25.Rg1!? Bf3 26.Bf6 fg4 27.Rd6+=) 25...Bh1=+ 26.Rd7 Rab8 (better is 26...Rad8!? 27.Rc7 Rb8 (27...fg4 28.Bf6 Re4 29.Rh7 Re3 30.fe3 Rd1 31.Kd1 Bf3 32.Kd2 g3 33.Rh8) 28.gf5 gf5=+) 27.gf5 gf5 28.Bc3 Rb7 29.Nh7 Rd7 30.Nf6 Kf7 31.Nd7 Re6 32.Ke2 Ke7 33.Ne5 (33.Nb6!? Rb6 34.Ba5=) 33...Rh6=+ 34.Nd3 Rh2 35.Be5 Rh3 36.Bf4 Bf3 37.Kd2 Be4 (37...Rh1 38.Bc7 Rh6 39.Ne5=+) 38.Nb2= Rh1 39.Bc7 Ra1 (39...Rf1 40.Nd3 Bd3 41.Kd3 Rf2 42.Bb6=+) 40.Bb6+= Ra2 41.Bc5 Kd7 42.Kc3 a4 43.f4 a3 44.Na4 Rc2 45.Kb3 a2 46.Bd4 Rd2 47.Be5 (better is 47.Nc5 Ke7 A) < 48.Ne4 Rd4 (< 48...fe4 49.Be5+/-) 49.ed4 a1Q-+; B) 48.Bb2+=) 47...Bc2–/+ 48.Kb2?? (better is 48.Ka2 Ba4 49.Ka3–/+) 48...Ba4-+ 49.Ka3 Bd1 50.Kb4 (50.c5 Bf3 51.c6 Kc8 52.Bf6-+) 50...Rd3 51.c5 Rb3 52.Kc4 Rb1 53.b6 (53.c6 Kc8 54.Kc5 Ba4-+) 53...Bf3 (53...Be2 54.Kd5 Rd1 55.Bd4-+) 54.Bg7 (54.Kd3 Rc1 55.Bb2 Rc5-+) 54...Kc6 55.Bf8 Rd1 56.Be7 Be2 57.Kb4 Ba6 (58.Bf6 Bb7-+; 57...Rb1 58.Kc3 a1Q 59.Kd2 Qb2#) 0–1. Diener,Rudolf – Franke, corr, 1988.

9.b5 ed4 10.ed4 Nb6 11.a4 (11.0-0 d5 12.c5 Nc4 13.Bc4 dc4=) 11...Re8 (11...Be6 12.Nd2=+) 12.0-0= Bg4 13.Qb3 d5 14.c5 Nc4 15.Bc1 (15.Rfe1 Nb2 16.Qb2 Bf5=) 15...c6 (15...Qd7 16.Bf4=) 16.h3 Bf3 17.Bf3 Qd7 (17...Nd7 18.Nd5 Bd4 19.bc6 bc6 20.Rb1 cd5 21.Bd5-+) 18.Rd1 Re7 19.Qc2 (19.Be2 Qe6=) 19...Rae8 20.Bf4 Nh5 (20...h6 21.Be2=) 21.Bg4 f5 22.Bh5 gh5 23.Qb3 Qe6 24.Bg5 Bf6 25.Bf4 Qf7 26.Rd3 ½–½. Labahn,Wolfgang – Kempys,Marek, Beskidy, 1991.

9.b5 ed4 10.Nd4 Nc5 11.0-0=.

9.0-0+= Bb7 10.a4 (10.d5 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Qe7+=) 10...a5 11.b5 Re8 (11...Rc8 12.d5+=) 12.Qc2 (12.d5 Nc5+=) 12...e4 (12...ed4 13.ed4 Ne4 14.Rae1+=) 13.Nd2 g5 (13...Qe7 14.Rac1+=) 14.f3 ef3 15.Bf3 Bf3 16.Rf3 g4 17.Rg3 h5 (17...Bh6 18.e4+/-) 18.e4 h4 19.Re3 (19.Rd3 Qe7+/-) 19...Bh6 (19...g3 20.hg3 Nh5 21.Nd5+/-) 20.Re2 Nh5 (20...Rc8 21.Rf1+/-) 21.Nd5 Rc8 (21...Ndf6 22.Nf6 Qf6 23.Rf1+/-) 22.Rf1 Ndf6 23.Nf6 Nf6 24.e5 g3? (24...Bg7 25.c5+/-) 25.Qf5 (25.Rf6 Qf6 26.ef6 Re2+/-) 25...Bg7? (25...de5 26.Qf6 Qf6 27.Rf6 Bg7+/-) 26.ef6 Re2 27.Qg4 Qf8 28.Qe2 Bh6 29.Qh5 (29.Ne4 c6+-) 29...Kh7?? (29...gh2 30.Kh2 d5+-) 30.Qh4 gh2 31.Kh2 Re8 (31...Qg8 32.Nf3 Qg6 33.Bc1+-) 32.Ne4 Qg8 (32...Kg8 33.Rf3 Re4 34.Qe4+-) 33.Bc1 Qg6 34.Ng3 Rg8 35.Bh6 (35...Qh6 36.Rf4+-; better is 35.Rh1 Rh8 36.Bh6 Qh6 37.Qh6 Kh6 38.Kg1 Kg6 39.Rh8 Kf6+-) 1–0. Lebel,Patrick (2165) – Hileyan,Michel (2095), FRA–chT2, 2001.

9.0-0+= c5 10.a3+=.

10.b5 Bb7 11.0-0 Re8 12.Qc2 Qe7 13.Ba3 Ra7 A) 14.Rfd1 ed4 15.ed4 Ne4 16.Nd5 Bd5 17.cd5 Ng5 18.Ng5 Qe2; B) 14.Rad1 ed4 (14...e4 15.Nd2 Qe6 16.h3 Qf5 17.Rfe1 Raa8 18.Nb3 Rad8; 14...Bh6 15.h3 e4 16.Nd2 Qe6 17.d5 Qe7 18.Nb3 Nc5; 14...Rd8 15.Rde1 Re8 16.Rd1 e4 17.Nd2 Qe6 18.h3 Qf5; 14...Raa8 15.Ra1 ed4 16.ed4 Ne4 17.Nd5 Bd5 18.cd5 Nd2; 14...Rb8 15.Ng5 Re8 16.Rfe1 Ng4 17.Nce4 Ndf6 18.d5 Ne4; 14...Rc8 15.Ng5 Re8 16.Nf3 e4 17.Nd2 Qe6 18.h3 Qf5; 14...h6 15.h3 e4 16.Nd2 Qe6 17.Rfe1 Raa8 18.Nb3 Qf5; 14...Rea8 15.de5 Ne5 16.Nd5 Nd5 17.cd5 Ng4 18.Bb2 Bb2; 14...Kh8 15.de5 Ne5 16.Nd5 Nd5 17.cd5 Ng4 18.Bb2 Nf6) 15.Nd4 Nc5 16.Bc5 bc5 17.Nc6 Bc6 18.bc6 Ra6; C) 14.d5 Nc5 (14...Rd8 15.h3 Nc5 16.Rfe1 Bc8 17.Bc5 dc5 18.Nd2 Bf5; 14...Bc8 15.Ng5 Nc5 16.Bc5 dc5 17.Nce4 Ne4 18.Ne4 f5; 14...h6 15.Nd2 Nc5 16.Nde4 Nfe4 17.Ne4 Ne4 18.Qe4 Bc8; 14...Raa8 15.h4 Nc5 16.Rfe1 h6 17.Rab1 Bc8 18.Nd2 h5; 14...Bh6 15.h4 Nc5 16.Rfe1 Rd8 17.Rab1 Bc8 18.Ng5 Bg7; 14...Rb8 15.h3 Nc5 16.Nd2 Bc8 17.Bc5 dc5 18.Nde4 Ne4; 14...Rc8 15.h3 Nc5 16.Nd2 Rd8 17.Bc5 dc5 18.Bf3 Ne8; 14...Rf8 15.Nd2 Nc5 16.h3 Raa8 17.Rfd1 Rfd8 18.Nb3 Nfd7; 14...Rea8 15.Nd2 Rd8 16.g3 Nc5 17.Bf3 Nfd7 18.Bb2 Rf8; 14...Kh8 15.Nd2 Nc5 16.Nde4 Nfe4 17.Ne4 Ne4 18.Qe4 Bc8; 14...h5 15.h4 Nc5 16.Rab1 Nfd7 17.g3 Raa8 18.Rfd1 Nf6) 15.h4 Bc8 16.e4 h6 17.Nd2 Ng4 18.h5 Qh4; D) 14.Rab1 ed4 (14...Ng4 15.Rb2 ed4 16.ed4 Nh6 17.Nd5 Bd5 18.cd5 Nf5) 15.ed4 Nf8 16.Bc1 Ne6 17.Re1 Qd7 18.Be3 Ng4; E) 14.h4 Ng4 (14...ed4 15.ed4 Nh5 16.Qd2 Bf3 17.Bf3 Qh4 18.Rad1 Qf4; 14...Nh5 15.d5 e4 16.Ng5 Nhf6 17.Rfe1 Nc5 18.Bc5 dc5) 15.Rfe1 Ndf6 16.Ng5 h6 17.Nf3 e4 18.Ng5 Nf2; F) 14.Rac1 ed4 15.ed4 Ne4 16.Rce1 Nc3 17.Qc3 Qf6 18.Qd2 Raa8; G) 14.Ra2 ed4 15.ed4 Nh5 16.Qd2 Qf6 17.Nd5 Bd5 18.cd5 Qf5; H) 14.g3 e4 (14...Bh6 15.d5 Nc5 16.h3 Bg7 17.Kg2 Bc8 18.e4 Bd7; 14...ed4 15.ed4 Ne4 16.Rae1 Nc3 17.Qc3 Qf6 18.Bd1 Raa8; 14...Raa8 15.Bb2 Rad8 16.Rae1 Rc8 17.Ng5 h6 18.Nf3 Rcd8) 15.Nh4 Qe6 16.Ng2 g5 17.Rab1 Qh3 18.Bb2 Raa8; I) 14.Qd2 Ne4 (14...Ba8 15.Qc2 ed4 16.ed4 Nf8 17.Bc1 Ne6 18.Re1 Bf3) 15.Ne4 Be4 16.h3 Bb7 17.d5 Nc5 18.Qc2 Bf6; J) 14.Bb2 ed4 (14...Raa8 15.Ba3 ed4 16.Nd4 Nc5 17.Nc6 Qe6 18.Rad1 Nce4) 15.ed4 Nf8 16.d5 N8d7 17.Rfe1 Ne5 18.Nd4 Qd7; K) 14.h3 ed4 15.ed4 Ne4 16.Rfe1 Nc3 17.Qc3 Qf6 18.Qd2 Raa8.

10.b5 Bb7 11.0-0 Re8 12.Qc2 Qe7 13.Ba3 Rac8 A) 14.Rad1 ed4 (14...e4 15.Ng5 h6 16.Nh3 g5 17.Rd2 Qe6 18.Qd1 Ra8; 14...Rb8 15.Bb2 ed4 16.Nd4 Nc5 17.Nc6 Bc6 18.bc6 Rbc8) 15.Nd4 Ne4 16.Nd5 Qg5 17.Nc6 Bc6 18.bc6 Ndf6; B) 14.g3 ed4 15.Nd4 Ne4 16.Ne4 Be4 17.Qd2 Nc5 18.Bb2 Qg5; C) 14.Rab1 ed4 15.Nd4 Ne4 16.Bf3 Nc3 17.Bb7 Bd4 18.Bc8 Nb1; D) 14.Rfe1 Bf3 15.gf3 ed4 16.ed4 Nh5 17.Qd2 Qh4 18.Rad1 Nf4; E) 14.d5 Ra8 (14...Rcd8 15.h3 Nc5 16.Rfd1 Rb8 17.Rab1 Ra8 18.Rbc1 Bc8; 14...Nc5 15.Rfd1 Ra8 16.h3 Rad8 17.Rab1 Rb8 18.Ra1 Qd7; 14...Rb8 15.Rfd1 Nc5 16.h3 Rbd8 17.Rab1 Ra8 18.Rd2 Rab8; 14...Red8 15.h4 Nc5 16.Rfd1 Rd7 17.Rab1 Re8 18.Rd2 h6; 14...h6 15.Nd2 Nc5 16.Nce4 Nfe4 17.Ne4 Ne4 18.Qe4 f5; 14...Rf8 15.Nd2 Nc5 16.h3 Rcd8 17.Nce4 Nfe4 18.Ne4 Ne4; 14...h5 15.h4 Nc5 16.Rfe1 Rcd8 17.e4 Ng4 18.Ng5 f6; 14...Bh6 15.h4 Nc5 16.Rfd1 Rcd8 17.Re1 Bg7 18.Red1 Rd7) 15.h3 Nc5 16.Rfe1 Rad8 17.Rab1 Rd7 18.Red1 Bh6; F) 14.h3 ed4 15.ed4 Ne4 16.Rae1 Ng5 17.Bd1 Nf3 18.Bf3 Qe1; G) 14.Rac1 ed4 15.ed4 Ne4 16.Rfe1 Ng5 17.Kf1 Ne6 18.Qd2 Bf3; H) 14.h4 ed4 15.ed4 Nh5 16.Qd2 Bf3 17.Bf3 Qh4 18.Rad1 Nhf6; I) 14.Qd2 Ne4 (14...Bh6 15.Qc2 ed4 16.ed4 Bg7 17.Nd2 Rb8 18.Bb2 Nf8; 14...ed4 15.ed4 Ne4 16.Ne4 Be4 17.Rfe1 Qf6 18.Rad1 c5; 14...Rcd8 15.h3 Ne4 16.Ne4 Be4 17.Rfe1 Bb7 18.Qc3 Qe6; 14...Ba8 15.Qc2 ed4 16.Nd4 Ne4 17.Ne4 Bd4 18.ed4 Qe4) 15.Ne4 Be4 16.h3 ed4 17.ed4 Qf6 18.Rad1 c5; J) 14.Bb2 ed4 (14...e4 15.Ng5 h6 16.Nh3 g5 17.Bc1 Qe6 18.Bd2 Ra8; 14...Ra8 15.Ba3 ed4 16.Nd4 Nc5 17.Nc6 Qe6 18.Rad1 Nce4; 14...Bh6 15.Rad1 e4 16.Nd2 Bg5 17.Nb3 Qe6 18.h3 Qf5; 14...Red8 15.Rae1 Ra8 16.h3 e4 17.Nd2 Re8 18.Ra1 Qe6; 14...Qe6 15.Ng5 Qe7 16.Nf3 ed4 17.Nd4 Nc5 18.Nc6 Qe6; 14...Rcd8 15.Rfe1 Ra8 16.Ng5 Nh5 17.h4 h6 18.Nf3 e4) 15.Nd4 Nc5 16.Nc6 Qe6 17.Rad1 Nfe4 18.Nd4 Qe7.

10.b5 Bb7 11.0-0 Re8 12.Qc2 Qe7 13.Ba3 ed4= 14.ed4 (14.Nd4 Nc5 (14...Ne4 15.Bf3 Bd4 16.ed4 Nc3 17.Qc3 Bf3 18.Qf3 Kg7; 14...Be4 15.Ne4 Ne4 16.Bf3 f5 17.g3 Ne5 18.Be4 fe4) 15.Nc6 Qe6 16.Bb2 Rac8 17.Rfd1 Nfe4 18.Nd5 Bc6) 14...Ne4 (14...Nf8 15.Rfe1 Bf3 16.gf3 Ne6 17.d5 Nd4 18.Qd3 Nd7; 14...Rab8 15.h3 Nf8 16.Bc1 Ne6 17.Be3 Qd7 18.Rae1 Re7; 14...Ra7 15.Qd2 Ne4 16.Ne4 Be4 17.Rfe1 Nf6 18.h3 h6) 15.Rae1 (15.Rfe1 Nc3 16.Qc3 Qf6= (16...Nc5 17.Bb2 Qf6 18.Qa3 Ne4) 17.Qd2 Re7 18.h3 Rae8; 15.Nd5 Bd5 16.cd5 Nd2 17.Qd2 Qe2 18.Qc1 Nf6) 15...Nc3 (15...Ng5 16.h4 Bf3 17.hg5 Be2 18.Qe2 Qe2) 16.Qc3 Nc5 (16...Rad8 17.Bb2= (17.Bd1 Qf6 18.Re8 Re8) 17...Nc5 18.Qd2 Qf6) 17.Qa1 (17.Qc1 Ne4+= (17...Ne6 18.d5 Nc5) 18.Bd3 Qf6) 17...Qf6 (17...Ne6 18.Bb2= (18.Bc1 Qf6) 18...Nf4; 17...Qe4 18.Qd1 Ne6) 18.Bb2 (18.Qd1 Ne6 19.d5 Nf4=) 18...Ne6 19.Bd1 Rad8 (19...d5 20.cd5 Bd5 21.Re5=) 20.Qa3 (20.Re3 Bf3 21.Rf3 Qh4=) 20...Bf3 21.Qf3 (21.Bf3 Nd4 22.Bc6 Re1 23.Re1 Qh4=+) 21...Qf3 22.Bf3 (22.gf3? Nd4 23.Bd4 Bd4–/+) 22...Bd4 23.Re6 Bb2 24.Re8 Re8 25.g4 (25.Rd1 h6=+) 25...Kg7 26.Rd1 Kf6 (26...h6 27.Kg2=+) 27.h4 h6 28.Kg2 Re5 (28...Re7 29.Bd5=+) 29.Rd2= Bc3 30.Rd3 Bb4 (30...Be1 31.Bd5 Kg7 32.Rf3=) 31.Bd5 Ke7 32.Rf3 f6 33.Re3 Bc5 34.Re4 (34.Re5 fe5 35.Kg3 Kf6=) 34...f5=+ 35.gf5 (35.Re5 de5 36.h5 Kf6 37.hg6 Kg6=+) 35...gf5 36.Rf4 (36.Re5 de5 37.f3 Bd4–/+) 36...Kf6–/+ 37.Rf3 (37.Kf1 Bb4–/+) 37...Re1 38.h5 Re2 (38...Ke5 39.Rg3–/+) 39.Kf1 (39.Bg8 Ke5 40.Kg3 Re1–/+) 39...Ra2 40.Kg2 (40.Be4 Ra4 41.Bd3 Ra1 42.Kg2 a4 43.Rf5 Ke7-+) 40...Ra4 41.Rg3 Ra2 42.Rg6 Ke5 43.Rh6 Rf2 (43...Kf4 44.Rg6 Rf2 45.Kh3-+) 44.Kg3–/+ f4 45.Kg4 Kd4 (45...a4 46.Rh7–/+) 46.Rh8 (46.Rh7 a4 47.Rc7 Rh2-+) 46...Kc3 47.Kh3 (better 47.Ra8–/+) 47...a4 48.Ra8 (48.Rc8 a3 49.Rc7 Rf1-+) 48...a3 49.h6 Kb2 50.h7 Bd4 51.c5 dc5 52.Ra4 Bg7 53.Ra7 (53.Re4 a2 54.Ba2 Ka2-+) 53...Be5 (53...f3 54.Rc7 Be5 55.Ra7 Rh2 56.Kg4-+) 54.Rc7 a2 (better 54...f3 55.Ra7 Rh2 56.Kg4-+) 55.Ba2 Ka2 (55...Bc7 56.h8Q Ka2 57.Qc8 Rf3 58.Kh2+-) 56.Re7 Bb2 57.Re1 (57.Rb7 f3 58.Rb6 Rg2-+) 57…Rd2 0–1. Castaldo,F (2345) – Elbilia,J (2330), 37th Olympiad, Turin ITA, 2006. (=1.Nf3 Nf6 2.c4 d6 3.d4 Nbd7 4.Nc3 e5 5.e3 g6 6.Be2 Bg7 7.b4 0-0 8.Bb2 b6)

10.b5 Bb7 11.0-0 Re8 12.Qc2 Qe7 13.Ba3 Rad8 A) 14.Bb2 e4 (14...ed4 15.Nd4 d5 16.Rfd1 dc4 17.Bc4 Qc5 18.Bb3 Qh5; 14...Bh6 15.h4 ed4 16.ed4 Ng4 17.Rfe1 Bf3 18.gf3 Ngf6; 14...Ra8 15.Ba3 ed4 16.ed4 Nf8 17.g3 Ne6 18.Rfe1 Bf3; 14...Qe6 15.Ng5 Qe7 16.Rfe1 h6 17.Nf3 e4 18.Nd2 Qe6; 14...Rc8 15.Rfe1 Bh6 16.Nd2 Kg7 17.h4 Qe6 18.d5 Qf5; 14...h6 15.Rfe1 e4 16.Nd2 Qe6 17.Ra3 Rc8 18.h3 Ra8; 14...Rb8 15.h3 e4 16.Nd2 Qe6 17.d5 Qe7 18.Nb3 Nc5; 14...Bf8 15.Rfe1 Bh6 16.Nd2 ed4 17.ed4 Nf8 18.d5 N8d7; 14...Rf8 15.h3 e4 16.Nd2 Rfe8 17.Nb3 Ra8 18.Rfe1 Qe6; 14...Qf8 15.Rfe1 e4 16.Ng5 Qe7 17.Nh3 Bh6 18.Qb3 Kg7; 14...Bh8 15.Rfe1 Bg7 16.h4 e4 17.Ng5 Nf8 18.Qb3 h6) 15.Ng5 Nh5 16.Nh3 Ndf6 17.Qd2 Qd7 18.f4 ef3; B) 14.Rab1 ed4 (14...Ng4 15.h3 ed4 16.ed4 Nh6 17.Bd1 Nf5 18.Nd5 Bd5; 14...Rc8 15.Rbd1 ed4 16.Nd4 Ne4 17.Bf3 Ndf6 18.Rd3 Rb8; 14...e4 15.Ng5 h6 16.Nh3 g5 17.Qb3 Qe6 18.Rbe1 Rc8) 15.ed4 Nf8 16.Rfe1 Ne6 17.g3 Bf3 18.Bf3 Nd4; C) 14.Rfd1 ed4 (14...e4 15.Ng5 Nh5 16.Nh3 Ndf6 17.Re1 Qe6 18.Qd2 Rd7; 14...Rb8 15.h3 ed4 16.ed4 Bh6 17.Bb2 Rbd8 18.Re1 Bf3; 14...Ng4 15.h3 ed4 16.ed4 Nh6 17.Ra2 Nf6 18.Bc1 Qd7) 15.ed4 Rb8 16.h3 Bh6 17.Bb2 Nh5 18.Re1 Nf4; D) 14.Rad1 e4 (14...Rc8 15.Bb2 ed4 16.Nd4 Nc5 17.h3 Qd7 18.Bf3 Bf3; 14...Bh6 15.Rb1 e4 16.Nd2 Qe6 17.Nb3 Qf5 18.d5 Nc5; 14...Rf8 15.Rde1 Rfe8 16.Rd1 Bh6 17.h3 e4 18.Nh2 Bg5; 14...Ra8 15.Ra1 ed4 16.ed4 Nf8 17.g3 Ne6 18.Qd3 Qd7; 14...Qe6 15.h3 Qe7 16.de5 Ne5 17.Nd4 c5 18.bc6 Nc6; 14...h6 15.de5 Ne5 16.Nd4 c5 17.bc6 Nc6 18.Nd5 Nd5; 14...Bf8 15.Nd5 Nd5 16.cd5 Bd5 17.de5 Bf3 18.Bf3 Ne5; 14...Rb8 15.h3 e4 16.Nd2 Qe6 17.Nb3 Qe7 18.Bb2 Ra8; 14...Ng4 15.h3 ed4 16.ed4 Nh6 17.Qd2 Nf6 18.Rfe1 Qd7; 14...Kh8 15.de5 Ne5 16.Nd5 Nd5 17.cd5 Ng4 18.Bb2 Nf6; 14...Ba8 15.de5 Ne5 16.Nd5 Nd5 17.cd5 Ng4 18.Bb2 Bb2) 15.Ng5 Nh5 16.Nh3 Ndf6 17.Ng5 h6 18.Nh3 Qe6; E) 14.d5 Nc5 (14...Bc8 15.h3 Nc5 16.Nd2 e4 17.Nb3 Nb3 18.Qb3 Qe5; 14...Ra8 15.h3 Nc5 16.Rfd1 Rab8 17.Rab1 Rbd8 18.Nd2 e4; 14...h6 15.h3 Nc5 16.Rfe1 Qd7 17.Bc5 dc5 18.Nd2 Re7; 14...Rf8 15.h3 Nc5 16.Rfd1 Rfe8 17.Rab1 Rd7 18.Ra1 Bh6; 14...Bh6 15.Nd2 e4 16.Nb3 Nc5 17.Nd4 Qd7 18.Nc6 Ra8; 14...Rb8 15.Nd2 Nc5 16.Bc5 dc5 17.Bf3 Qd7 18.h3 Qf5; 14...Rc8 15.Nd2 Nc5 16.Bc5 dc5 17.Bf3 Rcd8 18.h3 Bc8; 14...Qf8 15.Ng5 Nc5 16.Nce4 Qe7 17.Bb2 Nfe4 18.Ne4 Qh4; 14...Bf8 15.Nd2 Nc5 16.Nce4 Bg7 17.Bb2 Nfe4 18.Ne4 Qh4; 14...h5 15.h3 Nc5 16.Rfe1 Bc8 17.Nd2 e4 18.Nb3 Nb3; 14...Bh8 15.Nd2 Nc5 16.Bc5 dc5 17.Bf3 Bg7 18.h3 Bc8) 15.h3 Bh6 16.Nd2 e4 17.Nb3 Nb3 18.Qb3 Qe5; F) 14.Rac1 Ng4 (14...e4 15.Ng5 h6 16.Nh3 g5 17.Qb3 Qe6 18.Rce1 Rc8; 14...Rc8 15.Rcd1 ed4 16.Nd4 Ne4 17.Nd5 Qg5 18.f4 Qh4; 14...h6 15.h3 ed4 16.Nd4 Ne4 17.Nd5 Bd5 18.cd5 Bd4; 14...Rb8 15.Nd2 ed4 16.ed4 Nf8 17.Bf3 Bh6 18.Bb7 Rb7; 14...Bh6 15.Rce1 e4 16.Nd2 Qe6 17.Bb2 Qf5 18.h3 Re7; 14...ed4 15.Nd4 Nc5 16.Nc6 Bc6 17.bc6 Qe5 18.Bf3 Nce4; 14...Kh8 15.Bb2 e4 16.Nd2 Qe6 17.Nb3 Qf5 18.f3 Bh6; 14...Bf8 15.Rfe1 e4 16.Ng5 Bg7 17.Ra1 Nh5 18.Nh3 Ndf6; 14...Ra8 15.Ra1 ed4 16.ed4 Nf8 17.Bc1 Ne6 18.Re1 Bf3; 14...Qe6 15.Ng5 Qe7 16.Nf3 Rb8 17.Nd2 ed4 18.ed4 Qe6; 14...Rf8 15.Rce1 Rfe8 16.Rc1 Rb8 17.Nd2 ed4 18.ed4 Qe6) 15.Ne5 Nge5 16.Nd5 Qh4 17.de5 Re5 18.Bb2 Bd5; G) 14.Ra2 ed4 15.ed4 Rc8 16.Nd2 Nh5 17.Bf3 Bf3 18.Nf3 Qe6; H) 14.h3 ed4 (14...e4 15.Nd2 Qe6 16.Nb3 Qf5 17.d5 Nc5 18.Nd4 Qg5; 14...Ra8 15.Rfe1 Rad8 16.de5 Ne5 17.Nd4 Ra8 18.Bb2 Rac8; 14...Nh5 15.Rfd1 e4 16.Nd2 Nhf6 17.Nb3 Ra8 18.Rd2 Rad8; 14...Bh6 15.h4 Bg7 16.Rfe1 Rc8 17.Ng5 Ra8 18.Nf3 Rac8; 14...Rc8 15.Nd2 e4 16.Nb3 Qe6 17.Rfd1 Rcd8 18.c5 dc5; 14...Rf8 15.Rfd1 e4 16.Nd2 Rde8 17.Nb3 Ra8 18.Rd2 Rfe8; 14...Rb8 15.Bb2 Rbd8 16.Nd2 e4 17.Nb3 Ra8 18.Nd2 Qe6; 14...h6 15.Bb2 e4 16.Nd2 Qe6 17.Ra3 h5 18.Nb3 Qf5; 14...Kh8 15.Bb2 e4 16.Nd2 Kg8 17.Nb3 Ra8 18.Nd2 Qe6; 14...Qe6 15.Rad1 Qe7 16.de5 Ne5 17.Nd5 Nd5 18.cd5 Qd7; 14...Qf8 15.Rfd1 e4 16.Nd2 Qe7 17.Nb3 Rb8 18.Rd2 Ra8) 15.ed4 Nh5 16.Qd2 Qf6 17.Nd5 Bd5 18.cd5 Nf4; I) 14.Qd2 Ne4 (14...ed4 15.ed4 Ne4 16.Ne4 Be4 17.Rfe1 Qf6 18.Rad1 Qf5; 14...Rb8 15.Bb2 Ne4 16.Ne4 Be4 17.Rfd1 Bb7 18.d5 Nc5; 14...Rc8 15.Ng5 h6 16.Nf3 Ne4 17.Ne4 Be4 18.Rfe1 ed4; 14...e4 15.Ng5 Nh5 16.Nh3 Ndf6 17.Rab1 Qe6 18.Rfe1 Qf5; 14...Ba8 15.Ng5 h6 16.Nf3 Ne4 17.Ne4 Be4 18.h3 ed4; 14...Bh6 15.h3 ed4 16.Nd4 Nc5 17.Bb2 Bg7 18.Qc2 Qd7; 14...h6 15.Rfe1 Ne4 16.Ne4 Be4 17.h3 Bb7 18.d5 Nc5) 15.Ne4 Be4 16.Rfe1 Bb7 17.d5 Nc5 18.Qc2 Bf6; J) 14.Nd2 Qe6 (14...Rb8 15.Rae1 ed4 16.ed4 Nh5 17.Qd1 Qg5 18.Nf3 Qf6; 14...ed4 15.ed4 Qe6 16.Rae1 Bh6 17.h3 Bf4 18.Nb3 Re7; 14...Bh6 15.Rfe1 ed4 16.ed4 Nf8 17.d5 N8d7 18.Nf3 Nc5; 14...e4 15.h3 Qe6 16.d5 Qe7 17.Nb3 Nc5 18.Nd4 Qe5; 14...Ra8 15.Nf3 ed4 16.ed4 Nf8 17.Qd3 Ne6 18.g3 Qd7; 14...Kh8 15.Rae1 Kg8 16.Ra1 ed4 17.ed4 Rb8 18.Bb2 Nf8; 14...Ba8 15.Bb2 Bb7 16.Ba3 ed4 17.ed4 Bh6 18.Rad1 Qe6; 14...Bf8 15.Rfe1 Bg7 16.Rf1 ed4 17.ed4 Bh6 18.Rfe1 Nf8; 14...Bh8 15.Rae1 Bg7 16.Ra1 Qe6 17.d5 Qe7 18.Nb3 Nc5; 14...Kf8 15.Nf3 Kg8 16.Nd2 Qe6 17.Rfe1 ed4 18.ed4 Nh5; 14...Rc8 15.h3 Rcd8 16.Bb2 Qe6 17.Nb3 Qe7 18.Rfe1 Ra8) 15.d5 Qe7 16.h3 Nc5 17.Nde4 Nfe4 18.Ne4 Ne4.

10.b5 Bb7 11.0-0 Re8 12.Qc2 Qe7 13.Ba3 e4 A) 14.Nd2 Qe6 (14...Bh6 15.h3 Qe6 16.Nb3 Qf5 17.d5 Nc5 18.Nd4 Qd7; 14...Rad8 15.h3 Qe6 16.Bc1 Bh6 17.Nb3 Qf5 18.Bb2 Bg7; 14...Rab8 15.h3 Qe6 16.Bb2 Qf5 17.Nb3 Qg5 18.Rfd1 Re7; 14...Rac8 15.h3 Qe6 16.d5 Qe7 17.Nb3 Nc5 18.Nd4 Nfd7; 14...Bf8 15.h3 Bh6 16.Nb3 Bg5 17.Rfe1 Kg7 18.Rab1 Rad8; 14...Rec8 15.h3 Rd8 16.Rfe1 Ra7 17.Rad1 Rc8 18.Nb3 Re8; 14...Reb8 15.Rfe1 Re8 16.Rf1 Qe6 17.h3 Rad8 18.Nb3 Qf5; 14...Red8 15.Rfe1 Re8 16.Rf1 Qe6 17.h3 Qf5 18.Nb3 Rad8; 14...Ra7 15.h3 Qe6 16.d5 Qf5 17.Nb3 Qg5 18.Nd4 Raa8; 14...Kf8 15.h3 Kg8 16.Nb3 Rad8 17.Bb2 Bh6 18.Rfe1 Bg5; 14...Kh8 15.Nb3 Qe6 16.c5 dc5 17.dc5 Nd5 18.Nd5 Bd5) 15.h3 Qf5 16.Nb3 Rad8 17.Bb2 Rb8 18.Rfd1 Qg5; B) 14.Ng5 h6 (14...Nh5 15.Nh3 Ndf6 16.Rab1 Rad8 17.Qd2 Qe6 18.Rfe1 Qf5; 14...Nf8 15.h4 h6 16.Nh3 Ne6 17.Rab1 h5 18.Rfd1 Rab8; 14...Rf8 15.Nh3 Bh6 16.Nf4 Bf4 17.ef4 e3 18.Rae1 ef2; 14...Red8 15.Nh3 Bh6 16.Nf4 Bf4 17.ef4 e3 18.Rae1 Re8; 14...Rac8 15.Nh3 Nf8 16.Nf4 h6 17.h3 Qd7 18.Bb2 Qf5; 14...Bh6 15.h4 Bg7 16.Rfd1 Rac8 17.Rac1 Rcd8 18.Nh3 Nf8) 15.Nh3 g5 16.Bc1 Qe6 17.Bd2 Rac8 18.Rab1 Rf8.

10.b5 Bb7 11.0-0 Re8 12.Qc2 Qe7 13.Ba3 Nh5 A) 14.Rfd1 e4 (14...Nhf6 15.Rf1 ed4 16.Nd4 Nc5 17.Nc6 Qe6 18.Rad1 Nce4; 14...ed4 15.Nd4 Nhf6 16.Nc6 Qe6 17.Nd5 Nd5 18.cd5 Qe4; 14...Qd8 15.Nd5 e4 16.Nd2 Ndf6 17.Nc3 Bh6 18.c5 d5) 15.Nd2 Nhf6 16.Nb3 Rab8 17.h3 Qe6 18.Rab1 Qe7; B) 14.Rad1 e4 (14...Nhf6 15.Ra1 ed4 16.Nd4 Nc5 17.Nc6 Qe6 18.Rad1 Nce4; 14...ed4 15.Nd4 Nhf6 16.Nc6 Bc6 17.bc6 Ne5 18.Qb3 Ra7) 15.Nd2 Nhf6 16.Nb3 Bh6 17.h3 Bg5 18.Rd2 Kg7; C) 14.Nd5 Bd5 15.cd5 ed4 16.Qc7 Nc5 17.Qe7 Re7 18.Nd4 Bd4.

9.a4 a5 10.b5 ed4 11.ed4 d5 12.cd5 cd5 13.0-0 Nb6 14.Ne5 Be6 15.Bd3 Nc4 16.Nc4 dc4 17.Bc2 Nd5 18.Nd5 Bd5 19.Qd2 Qd7 20.f3 Rfe8 21.Rfe1 b6 22.Re8 Re8 23.Re1 f5 24.Re8 Qe8 25.Kf2 Qb8 26.g3 Qd6 27.Qe3 Kf7 28.h4 h5 29.Ba3 Qd7 30.Bb2 Bf6 31.Qf4 Bd8 (31...Qe7 32.Bc1=) 32.Qh6 (32.Be4 Qe6 33.Bd5 Qd5=) 32...Bf6= 33.Qf4 Be7 34.Qe5 Bf6 35.Qe3 Qc7 36.f4 Ba8 37.Bd1 Qb7 38.Bf3 Qf3 39.Qf3 Bf3 40.Kf3 Ke7 41.Ke3 Kd6 42.Ba1 Kd5 43.Bc3 Be7 44.Be1 Bf6 45.Bc3 Bg7 46.Ba1 c3 47.Bc3–/+ Kc4 48.Bb2 Kb3 49.Bc1 Ka4 50.Kd3 Kb5 51.Ba3 Kc6 52.Be7 Kd5 0–1. Bartels,Frank (2345) – Jirovsky,Petr (2230), Landesliga N Bayern, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 c6 8.Nc3 e5)

9.a4 Re8 10.a5 Nf8 11.b5 a6 12.b6 e4 13.Nd2 h5 14.Qc2 Bf5 15.h3 N8h7 16.0-0-0 Qd7 17.Rdg1 Ng5 18.Qd1 h4 19.Nf1 Qc8 20.Nh2 Bd7 21.Ng4 Nfh7 22.g3 +=. Adam – Weinlich, corr 1972.

9.Qb3 a5= 10.a3 e4 (10...ed4 11.Nd4 Re8 12.0-0=) 11.Nd2+= Re8 12.0-0 h5 (12...Qe7 13.Rfd1+=) 13.b5 (13.Qc2 d5+=) 13...Nf8 (13...c5 14.d5+=) 14.Na4 (14.f3 ef3 15.Bf3 Re3 16.bc6 bc6 17.Bc6 Ra7+=) 14...N8h7 (14...h4 15.h3+=) 15.Bc3 (15.c5 Nd5+/-) 15...Bf5 (15...Bg4 16.Bg4 Ng4 17.h3+/-) 16.bc6 (16.c5 Nd5 17.bc6 bc6 18.cd6 Qd6+/-) 16...bc6 17.Qb6 (17.c5 Nd5+/-) 17...Qe7 (17...Qb6 18.Nb6 Ra7 19.Rfb1+/-) 18.Rab1 (18.Rfb1 Rec8+/-) 18...Qf8 19.Qb3 (worse is 19.Qc6 Bd7 20.Qc7 Ba4 21.Ba5 Rec8–/+; 19.Ba5?! Reb8 20.Qc7 Rc8=) 19...Qe7 (19...Reb8 20.Qc2+/-) 20.Nb6 Ra7 21.Qa4 Qc7 (21...c5 22.Rb5+/- (worse is 22.Ba5 cd4 23.Bd1 d3+=)) 22.Rb2 Nd7 23.Nd7 Bd7 24.Qb3 Bf6 25.Qb6 Bd8 26.Qc7 Bc7 27.Rfb1 f5 28.Rb7 Rea8 29.f3 ef3 30.gf3 Bc8 31.Ra7 Ra7 32.e4 Ng5 33.Bd3 Nh3+= 34.Kf1 Nf4 35.Bc2 fe4 36.fe4 Bg4 37.d5 c5 38.Kf2 Ra8 39.Rb7 Rf8= 40.Ke3?? Ng2-+ 41.Kd3 Ne1 42.Ke3 Nc2 43.Kd3 Ne1 44.Ke3 Rf7 45.e5 de5 46.Ne4 Nf3 47.d6 Bd8 48.Rb8? Rf8 49.Rb7? Nd4 50.Nc5 Nf5 (50...Nf5 51.Kd3 Nd6 52.Be5 Rf3 53.Kd4 Nb7 54.Nb7 Bh4-+; better is 50...Rf3 51.Ke4 Rc3 52.Ke5 Nc6 53.Kd5 Bf3 54.Ne4 Ra3 55.Rd7-+) 0–1. Koester,Roman (2085) – Koehler,Ronald (2260), Oberliga East B, 2006.

9.Qb3 a6 10.a4 a5 11.b5 ed4 12.ed4 Re8 13.0-0 Nh5 14.Rfe1 Ndf6 15.Bc1 d5 16.cd5 Nd5 17.Nd5 Be6 18.Bc4 cd5 19.Bf1 Nf6 20.Bf4 Ne4 21.Rac1 f6 22.b6 g5 23.Bc7 Qe7 24.h3 h5 25.Bb5+/- Rf8 26.Nh2 f5 27.Be5 Rac8 28.Bg7 Qg7 29.Nf3 g4 30.Ne5 f4? 31.Rc8 Rc8 32.Bd7!! Bd7 33.Qd5 Kh8 34.Qd7 Qd7 35.Nd7 g3 36.fg3 fg3 37.Nc5 Nd2? 38.h4 Nc4+/- 39.Re6 Rd8 40.Rh6 Kg7 41.Rh5+- Kf6 42.Ne4 Kg6 43.Rg5 Kf7 44.Ng3 Rd4 45.h5 Rd1 46.Kh2 Ne3 47.Kh3 Rd5 48.Ne4 Rg5 49.Ng5 Kf6 50.Ne4 Kf5 51.Nd6 Kg5 52.g4 Nd5 53.Kg3 Nb6 54.Ne4 Kh6 55.Kh4 Na4 56.g5 Kg7 57.g6 Kh6 58.Nd6 (58.Nd6 Kg7 59.Ne8 Kg8 60.h6+-) 1–0. Vidit,S (2355) – Zhou Yang Fan, WYCC Boys U14, Vung Tau City VIE, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 d6 4.d4 Nbd7 5.Bb2 e5 6.e3 c6 7.Nc3 Bg7 8.Be2 0-0)

9.Qb3 e4 10.Nd2 Re8 11.0-0 Nf8 12.a4 h5 13.b5 Bf5 14.f3 ef3 15.Rf3 Bg4 16.Rg3 h4 17.Rg4 Ng4 18.Bg4 Qg5 19.Qd1 Qe3 20.Kh1 Bd4 21.Rc1 Re7 22.Nf3 Rae8 23.Nd5 cd5 24.Qd4 Qd4 25.Bd4 f5 26.Bh3 Rc7 27.g4 fg4 28.Bg4 Re4 29.h3 b6 30.Rd1 dc4 31.Ng5 Rd4 32.Rd4 c3 33.Rd1 c2 34.Rc1 Kg7 35.Nf3 Rc4 36.Ne1 Ra4 37.Nc2 Rc4 38.Bd1 Rc5 39.Rb1 Ne6 ½–½. Studenetzky – Wexler, 1965.

9.b5 ed4 10.Nd4 Qc7 11.0-0 Nc5 12.Bf3 Bd7 13.h3 Rfe8 14.Qc2 Ne6 15.Ne6 Be6 16.bc6 bc6 17.Qa4 Rac8 18.Ne2 Rb8 19.Bc3 Bd7 20.Qa3 Ne4 21.Bg7 Kg7 22.Nf4 Ng5 23.Be2 Ne6 24.Ne6 Be6 25.Rfd1 c5 26.Rd2 Rb6 27.Rad1 Reb8 28.Qc3 f6 29.g4 Kf7 30.Bf3 Rb1 31.Bd5 Qe7 32.Kg2 Rd1 33.Rd1 Bd5 34.Rd5 Qe4 35.f3 Qe7 36.Kg3 Rb6 37.e4 Qe6 38.h4 White plans g5 38...Qe7 39.g5 Ra6 40.a3 Rb6 41.a4 Ra6 42.a5 Qd8 43.Qb2 Ra5 44.gf6 Qf6 45.e5 Qe7 46.Rd6 Ra2 47.Qc3 Rc2= 48.Qe3 Rc4 49.f4 Kg7 50.Qd3 Rd4 51.Rd4 cd4 52.Qd4 Kf7 53.Qd3 Qe6 54.Qb5 h5 55.Qb7 Kg8 56.Qb8+/- Kg7 57.Qa7 Kh6 58.Qf2 Qg4 59.Kh2 Kg7 60.Qg3 Qe2 61.Kg1 Qd1 62.Kg2 Qe2 63.Qf2 Qg4 64.Kh2 Kf8 65.Qc5 Kg8 66.Qf2 Kf8 67.Qg3 Qe2 68.Qg2 Qe3 69.Qg6 Qf4 70.Qg3+/- Qf1 71.Qe3 Ke7 72.Qc5 Kf7 73.Qd5 Kg7 74.Qd7 Kg6? 75.Qe8+- Kh6 76.Qh8 Kg6 77.Qg8 (77.Qg8 Kh6 78.Qg5 Kh7 79.Qh5 Kg7 80.Qg4 Kf7 81.h5+-) 1–0. Kaenel,Hansjuerg – Kaufmann,Werner, SUI, 2002. (=1.Nf3 g6 2.d4 Bg7 3.e3 Nf6 4.b4 0-0 5.c4 d6 6.Bb2 Nbd7 7.Nc3 c6 8.Be2 e5)

9.Qc2 Re8 10.0-0 Nf8 11.Rfd1 Qe7 12.c5 e4 13.Nd2 d5 14.b5 g5 15.Rab1 Ng6 16.Nb3 Nh4 17.Na5 Qc7 18.Nb3 Bg4 19.Na4 cb5+= 20.Bb5 Bd1 21.Qd1 Re6 22.Bc3 h5 23.Be2 b5 24.Bb5? Ng4–/+ 25.g3 Nf3 26.Kg2 Nfh2 27.Ba5 Qb7 28.Be2 Rf6 29.Bg4 Ng4 30.Rb2?? Rf2! (30...Rf2 31.Kg1 Qb8 32.Rf2 Qg3 33.Rg2 Qg2 34.Kg2 Ne3 35.Kf2 Nd1 36.Ke2 h4 37.Kd1 h3-+) 0–1. Kluegel,Ja (1940) – Meertens,Mart (2155), St Pauli Open, 2011. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 d6 5.Bb2 0-0 6.c4 c6 7.Nc3 Nbd7 8.Be2 e5)

9.de5 de5 10.0-0 Qe7 11.a3 b6 12.Qc2 Bb7 13.Rfd1 Rad8 14.Qa4 a6 15.Rd2 e4 16.Ne1 (better is 16.Nd4+=) 16...Nc5–/+ 17.bc5? (better is 17.Rd8!? Na4 18.Rf8 Kf8 19.Na4–/+) 17...Rd2-+ 18.Bc1 b5 19.Qb4 Rdd8 (19...Re2 20.Ne2 Ng4 21.Ra2-+) 20.Rb1 (20.Bb2 Nd7 21.cb5 ab5-+) 20...Bc8 (20...Nd7 21.a4 Qc5 22.Qc5 Nc5 23.Ba3 Bc3 24.Bc5-+) 21.a4 bc4 22.Bc4 Nd5 23.Bd5 cd5 24.Ne2 Bg4 25.Nd4 Qc7 26.Qb6–/+ Be5 27.h3 Rb8 28.Qc7+/- Bc7 29.Rb8 Rb8 30.hg4 Rb1 31.Bd2+/- Be5 32.Kf1 Kf8 33.Bc3 Ke8 34.Ke2+- h5 35.gh5 gh5 36.f4 ef3 37.Nef3+- Bf6 38.Ne1 Kd7 39.Nd3 Rg1 40.Nf4 Bd4 41.Bd4 h4 42.Kf3 Kc6 43.Nd3 a5 44.Ne5 Kc7 45.Bc3 Kc8 46.Ba5 Ra1 47.Bb6 Ra4 48.Nf7 Kd7 49.Ng5 Kc6 50.Ne6 Ra8 51.Nd4 Kb7 52.Nf5 Rh8 53.Kg4 Rg8 54.Kf4 Rg2 55.Nh4 Re2 56.Nf5 Re1 57.Ke5 Rd1 58.Ne7 1–0. Djurkovic,Maks (2145) – Hardicsay,Peter (2300), Schwarzach op–A, 1999. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.c4 0-0 5.Bb2 c6 6.e3 d6 7.Be2 Nbd7 8.Nc3 e5)

10.Nd2 d5 11.b5 Re8 12.Rc1 Nf8 (12...Qe7 13.bc6 bc6 14.cd5+/-) 13.Ba3 Ne6 14.Qb3 Nc7 15.Rc2 cb5 16.cd5 a6 (16...Nfd5 17.Nd5 (17.Nde4?! Bf5=) 17...Nd5 18.Bb5+/-) 17.d6 Ne6 18.Rfc1 (worse is 18.Nde4 Ne4 19.Ne4 Nd4 20.ed4 Re4=) 18...Nf8 (18...b6 19.Nd5 Bb7 20.Ne7 Kh8 21.Nc6 Bc6 22.Rc6+/-) 19.Nd5 Be6 20.Ne7 Kh8 (20...Qe7 21.de7 Bb3 22.ab3+- (worse is 22.ef8B Bf8 23.ab3 Ba3+=)) 21.d5 Nd5 22.Nd5 Qg5 23.Ne4 Qd5+/- 24.Qd5 Bd5 25.Nc5 Ne6 26.Ne6 Be6 27.Bf3+/- Rab8 28.Rc7 Red8 29.Bb7 a5 30.Bc5 b4 31.Ba7+- Be5 32.Bb8 Bd6 33.Ba7 Bc7 34.Bd4 Rd4 35.ed4 Bf4 36.Rc5 a4 37.Ra5 b3 38.ab3 ab3 39.Rb5 (39.Rb5 Kg7 40.g3+-) 1–0. Martin,A – Hebden,M, Eastbourne, 1991.

10.Nd2 d5 11.Qc2 Re8 12.h3 (12.b5 Rb8+/-) 12...Nf8 13.b5 h5 (13...Ne6 14.Ba3+=) 14.Rab1 h4 15.bc6 bc6 16.Rfc1 g5 (16...Ne6 17.Ba3+/-) 17.Ba3+- g4 18.cd5 cd5 19.Nb5 gh3 20.Nc7 Bf5 (20...Bd7!? 21.Na8 Qa8 22.gh3 Rc8+/-) 21.Na8+- Qa8 22.Qc7 hg2 (22...Bd7 23.gh3 Ne6 24.Qe5+-) 23.Qf4 Be6 24.Qh4 Ng6 25.Qg3 Rc8 (25...Nd7+-) 26.Rc8 Qc8 (26...Bc8 27.Qb8 Qb8 28.Rb8+-) 27.Rb8 (27.Rb8 Kh7 28.Rc8 Bc8 29.Qc7+-) 1–0. pierre – anony, internet, 2015.

10.Nd2 d5 11.c5 Ne8 12.b5 f5 13.Qb3 Ndf6 14.Rfe1 g5 15.f3 Kh8 16.Nd1 g4 17.f4 h5 18.a4 Bd7 19.Ba3 h4 20.Nf1 Nh5 21.Qc3 Qf6 22.Rb1 Nc7 23.b6 Ne6 24.ba7 Ra7 25.Rb4 Rfa8 26.Bc1 Kh7 27.Qb3 Bc8 28.Bb2 Bf8 ½–½. Stevanovich – Panzel, Akron 1979.

10.Nd2 d5 11.cd5. eddieteijeiro (2160) – einaar (2430), net–chess.com, 2008. (=1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 0-0 5.e3 d6 6.b4 c6 7.Bb2 Nbd7 8.Be2 e5)

10.Nd2 Qe7 11.a3+=.

11.a4 a5 12.b5+=.

11.a4 Qe7 12.Ba3 b6 13.c5 bc5 14.bc5 d5 15.a5 Nf8 16.Qa4 Qc7 17.a6 h5 18.Nb3 Bg4 19.Na5 Be2 20.Ne2 Ng4 21.g3 Rac8 22.Rab1 Qd7 23.Nb7 Ne6 24.Nd6 Ng5 25.Rb7 Qe6 26.Nf4 Qf6 27.Ne8 Re8 28.Rc7 Re6 29.h4 Nf3 30.Kg2 Bh6 31.Bc1 Bf4 32.ef4 Nh4 33.Kh1 Nf3 34.Rc8 Kg7 35.Qa5 Qf5 36.Qd8 Nf2 37.Kg2 Qh3 38.Kf2 e3 39.Be3 Qh2 40.Kf3 Re3 41.Ke3 Qg3 42.Ke2 1–0. Junger – Wagner, Germany 1987.

11.Qc2 Qe7 12.b5 Nb6 13.a4 cb5 14.cb5 Bf5 15.a5 Nbd5 16.Nd5 Nd5 17.Qb3 Nf6 18.Rfc1 +=. Adam – Schlicht, corr 1972.

12.b5 c5 13.a5+=.

12.b5 c5 13.dc5 dc5 14.Qc2+=.

13.a5+/- h4 14.Qc2+/-.

14.Qa4 ab5 15.cb5 cb5 16.Qb5 d5+/-.

14.Qa4 Bd7+-.

14.Na4 Qa5 15.ba6 Qg5 16.ab7 Bb7 17.Ba3=.

14.Na4! Qa5 15.c5! dc5 16.Nc5 Qc7 17.ba6.

14.Na4 Qa5 15.bc6 bc6 16.c5 dc5 17.Nc5+=.

14.Na4 Bf5 15.Nb6 (15.bc6 bc6 16.c5 Bg4+/-) 15...Rb8+= 16.bc6 (16.Qc2 N6d7+=) 16...bc6 17.c5 Nd5 (17...dc5 18.dc5 Bg4 19.Ra3+=) 18.Ndc4 (better is 18.cd6!? Nd7 19.Nd7 Qd7 20.Qc1+/-) 18...dc5= 19.dc5 Bb2 (19...Nc3 20.Bc3 Bc3 21.Rc1 Qd1 22.Rfd1+=) 20.Nb2 Nc3 (20...Qg5 A) worse is 21.Ba6 Bh3 22.g3 Nc7–/+ (22...Bf1?! 23.Bf1 Ne6 24.Qc2+=); B) 21.h4 Qh4 22.Ba6=) 21.Qc2+= Ne2 22.Qe2 Qg5 23.Rfc1 (worse is 23.Qa6 Bh3 24.g3 Red8–/+) 23...Bh3 24.Qf1 Nd7 25.Kh1 Be6 26.N2a4 (worse is 26.Qa6 Nc5 27.Qf1 Nb3–/+) 26...Ne5 27.Nc3 (27.Qa6 Nd3 28.Rc2 Qf6+=) 27...Qh4 28.Rc2 (better is 28.Ra4 Ng4 29.h3 Nf2 30.Kg1 Nh3 31.gh3 Qg3 32.Kh1 Bh3 33.Qg1 Qf3 34.Kh2+=) 28...Bg4 (better is 28...Nd3!?+=) 29.Ra4 (29.Nc4 Nc4 30.Qc4 Bc8+/-) 29...Nf3 (29...Red8 30.h3 (30.Ne4?? Rd1 31.Qd1 Bd1-+; 30.Qa6 Nf3 31.h3 Bh3 32.g3 Bg2 33.Kg2 Qh2 34.Kf1 Qh1 35.Ke2 Qe1) 30...Nf3 31.Ne4+- (31.gf3 Bh3 32.Qg1 Be6 33.Qh2 Qh2 34.Kh2 Bb3+/-)) 30.h3 (30.gf3?? Bf3 31.Qg2 Qh3 32.Qf3 Qf1) 30...Rbd8 31.Nc4 (31.gf3 Bh3 32.Qg1 Be6 33.Qh2 Qh2 34.Kh2 Bb3+=; 31.Ne4 Bh3 32.gh3 Re4 33.Re4 Qe4–/+; 31.Qa6?? Bh3! 32.g3 Bg2 33.Kg2 Qh2 34.Kf1 Qh1 35.Ke2 Qe1; 31.Re4?? Re4 32.Ne4 Bh3 33.gh3 Rd1 (33...Qe4?! 34.Rc4 Qe6 35.Kg2–/+) 34.Nf6 Kg7-+) 31...Rd3 (better is 31...Ng5!? 32.Kh2 Rb8+/-) 32.Nd6+- (32.gf3 Bh3 33.Qg1 ef3-+) 32...Rc3 (32...Re6 33.Nde4 (33.gf3 Bh3 34.Qg1 Bg4 35.Qh2 Bf3 36.Kg1 Qg5 37.Qg3 Qc5–/+; 33.Re4?! Rd2 34.Re6 Be6 35.Rd2 Nd2+/-) 33...Rd8 34.Nd6+- (34.gf3?! Bh3 35.Qc1 Bg4 36.Kg1 Bf3+-; 34.Qa6? Bh3 35.g3 Re4 36.Re4 Qe4-+)) 33.Rc3 Rb8 (33...Re5 34.Re4 Re4 35.Ne4 Bh3 36.gh3 Qe4+/-) 34.Re4?? (better is 34.Rc1 Nd2 35.Qg1+- (35.Qa6 Bh3 36.Re4 Ne4-+)) 34...Qf2-+ 35.Rc1 Qg3 (35...Qg3 36.Qg1 Ng1 37.Rg4 hg4-+) 0–1. Sokolski,Alexey – Solovyev, Minsk, 1957.

14.b6 Bf5+/-.

10.a4 e4 11.Nd2 d5 12.b5 Nf8 13.a5 a6 14.bc6 bc6 15.Nb3 Ne6 16.Qc2 Nc7 17.Na4 Bg4 18.Bg4 Ng4 19.h3 Nh6 20.Rfc1 Ra7 21.Ba3 Ne6 22.cd5 cd5 23.Qc6 Nf5 24.Nc3 Nc7 25.Bc5 Re6 26.Qa4 Rb7 27.Bb6 Bf8 28.Nd5! Qd5 29.Rc7 Rc7 30.Bc7 Rc6 31.Rc1 Rc1 32.Nc1 Qb7 33.Bb6 Qc8 34.Ne2 h5 35.Qb3 Qc6 36.Nc3 Bd6 37.d5 Qe8 38.Ne2?? Kh7 39.Qc3 Qd7 40.Qc6 Qe7 41.Qc2 Qe8 42.Qc1 Qb5 43.Qd1+= Bb4 44.Nf4 Ba5 45.Ba5 Qa5 46.d6 Qd8 47.d7 Ne7 48.Ne2 Ng8= 49.Nc3 Nf6 50.Qd4 Nd7? 51.Ne4+/- Qe7 52.Qd7! Qe4 53.Qf7 Kh6 54.Qf8 Kh7 55.Qd6 Qb7 56.Qc5 Qb1 57.Kh2 Qb8 58.Kg1 Qb1 59.Kh2 Qb8 60.f4 Qb5 61.Qe7 Kg8 62.e4 Qc4 63.Kg3 Qc1 64.Qe6 Kg7 65.Qe5 Kf7 66.Kh4 Qe1 67.Kg5 Qg3 68.Kh6 Qg2 69.Qg7 Ke8 70.Qg6 Qg6 71.Kg6 a5 72.Kg7 a4 73.f5 a3 74.f6 a2 75.f7 Kd7 76.f8Q a1Q 77.Qf6 Qg1 78.Kf7 Qe3 79.e5 Qh3 80.e6 Kc7 81.Qe5 Kb7 82.e7 Qf3 83.Kg7 Qg4 84.Kh8 (84.Kh8 Qd7 85.e8Q Qe8 86.Qe8+-) 1–0. Galliamova,Alisa (2250) – Ladner,Karin, Wch U20 Girls, 1988. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.Nc3 d6 5.e3 0-0 6.Be2 Nbd7 7.b4 e5 8.Bb2 c6)

10.Qb3 ed4 11.Nd4 Ne5 12.Rad1 Qe7 13.Nf3 Be6 14.Nd4 Bg4 15.Bg4 Nfg4 16.h3 Nf6 17.Nce2 a5 18.a3 ab4 19.ab4 (19.Qb4? c5 20.Qb3 cd4 21.Rd4 Nc6-+) 19...d5 20.cd5 Nd5 21.Nc2 Red8 22.Kh1 (22.e4 Nb6=) 22...b5 23.Ned4 Rdc8 (23...Rac8 24.e4 Nf6 25.Rfe1=) 24.Nb5 (24.Nc6 Nc6 25.Rd5 Qe6 26.Bg7 Ne7+=) 24...Ne3 25.Ne3 cb5 26.Rfe1 Qc7? (better is 26...Re8+/-) 27.Nd5+- Qd6 (27...Qc4 28.Ne7 Kh8 29.Nc8 Rc8 30.Rc1 Qb3 31.Rc8 Bf8 32.Be5 (worse is 32.Rf8 Kg7 33.Re8 Qb2 34.R1e5 Qb1 35.Re1 Qb4–/+) 32...Kg8 33.Bd6+-) 28.f4 Nc4 29.Ne7 Qe7 30.Re7 Bb2 31.Rdd7 Rf8 32.Qf3 Ra1 33.Kh2 Bf6 34.Re2 Ra3 35.Qd5 Bh4 36.Qd4 Bg3 37.Kh1 Rb3 38.Qd1 Rb4? 39.Rd8 Bh4 40.Rf8 Kf8 41.Qa1 f6 42.g3! Ra4 43.Qd4 Ne5 44.Qd8 Kg7 45.fe5 fe5 46.gh4 e4 47.Qd7 Kg8 48.Qb5 Ra1+- 49.Kg2 (49.Kg2 Kg7 50.Rf2 Ra8 51.Qb7 Kh6 52.Qa8 Kh5 53.Qd5 Kh6 54.Rf7 e3 55.Qg5) 1–0. Luneau,Gilles (1780) – Barlo,Werner (1690), Wch Seniors, 1998. (=1.c4 g6 2.Nf3 Bg7 3.e3 Nf6 4.d4 d6 5.Nc3 c6 6.b4 0-0 7.Bb2 Nbd7 8.Be2 e5 9.0-0 Re8)

10.b5 e4 11.Nd2 d5 12.a4 Nf8 (12...dc4 13.bc6 bc6 14.Nc4+=) 13.a5 (13.Ba3 Be6+=) 13...a6 (13...cb5 14.cb5 Re7 15.Ba3+=) 14.bc6 (14.b6 Bf5+=) 14...bc6 15.Qc2 (15.Qa4 Bd7+=) 15...h5 (15...Bg4 16.Nb3=) 16.Rfb1 N8h7 (16...Bg4 17.Bg4 Ng4 18.h3+=) 17.Na4 (17.Nb3 Ng5+/-) 17...Bg4 (17...Qa5 18.Ba3 Qd8 19.Nb6+/-) 18.Bf1 (18.Nb3 Be2 19.Qe2 Ra7+/-) 18...Bf5 (18...Qa5 19.Nc5 Qc7 20.Na6+/-) 19.Ba3 (19.Nb6 Ra7+/-) 19...Ng5 (19...Ng4 20.h3 Nf2 21.Kf2 Bd4 22.cd5 Qh4 23.Ke2 Ba1 24.Nb6+=) 20.Rb6 Nf3? (better is 20...h4+/-) 21.gf3+- ef3 22.Qd1 Re4 23.Nf3 Rg4 24.Bg2 Ne4 25.Nc5 Rg2 26.Kg2 Bh3 27.Kh3 Nf2 28.Kg2 Nd1 29.Rd1 dc4 30.Na6 Qc8 31.Rdb1 Qg4 32.Kf2+- Kh7 33.Bb4 Bh6? 34.Re1 Qe4 35.Nc5 Qc2 36.Re2 Qf5 37.Rb7 Bg7 38.Ne4! Kg8 39.Nd6 Qd5 40.e4 Qe6 41.Nf7 c3 42.Bc3 Qc4 43.Re3 Rf8 44.N7e5 Be5 45.de5 Rf4 46.e6! Qe6 47.Rd3 Qe8 48.Rg7 Kf8 49.Rh7 (49.Rh7 Re4 50.a6+-) 1–0. Kaenel,Hansjuerg – Bohak,Janko, It open, 1994. (=1.Nf3 Nf6 2.e3 d6 3.d4 Nbd7 4.c4 e5 5.Nc3 g6 6.b4 Bg7 7.Bb2 c6 8.Be2 0-0)

10.Qc2 ed4 11.Nd4 Nb6 12.Rad1 Qe7 13.Qb3 Bg4 14.Nf3 Nfd7 15.Rd2 a5 16.ba5 Ra5 17.Rfd1 Bf3 18.Bf3 Be5 19.Ne4 Bb2 20.Rb2 Na4 21.Rbd2 Nac5 22.Nc5 Nc5 23.Qc3 Rea8 24.Rd6 Ra2 25.g3 Ra1 26.Rg6 hg6 27.Ra1 Ra1 28.Qa1 Qc7 29.Qa3 Qe5 30.h4 Kg7 31.Qa5 Kh7 32.Kg2 Kg7 33.Qb4 Nd3 34.Qd2 Nc5 35.Qd4 Qd4 36.ed4 Nb3 37.d5 Na5 38.dc6 bc6 39.Be2 f5 40.Kf3 Kf6 41.g4 fg4 42.Ke4 Ke6 43.Bg4 Kd6 44.Be2 Ke6 45.c5 Kf6 46.Bd1 Nc4 47.Kd4 Ne5 48.Be2 Ke6 49.f4 1–0. Dreev – Zlotnikov, Moscow 1991.

10.Qc2 ed4 11.Nd4 c5 12.bc5 Nc5 13.h3=.

10.Qc2 ed4 11.Nd4 Ne5 12.Nf3 (12.h3 Qb6=) 12...Bf5 13.Qd2 Nfd7 14.Ne5 (14.Qd6 Nf3 15.gf3 Bh3–/+) 14...de5 15.Rfd1 Nf6 16.a3 (16.c5 Qd2 17.Rd2 a5=) 16...Ne4 (16...Qc8 17.h3=) 17.Ne4 Be4 18.f3 Bf5 ½–½. Dopper,Johan – Haak,G, 1999.

10.Qc2 Nf8 11.de5 de5 12.Rfd1 (12.c5 e4 13.Nd2 a5+/-) 12...Qc7 (12...Qe7 13.c5+=) 13.c5 (13.Rd2 e4 14.Nd4 Bg4+=) 13...Bf5 (13...e4 14.Nd2+=) 14.e4 Bg4 15.h3 (15.Rd6 a5 16.a3 ab4 17.ab4 Ra1 18.Ba1 Ra8+=) 15...Bf3 16.Bf3 (worse is 16.gf3 Ne6+=) 16...Ne6 17.Ne2 (17.a3 Red8=) 17...Ng5 18.Rd6 a5 19.a3 ab4 20.ab4 Ra1 21.Ba1 Nf3 22.gf3 Nh5 23.Rd3 Qc8 24.Qd1 Nf6 25.Rd6 Qh3–/+ 26.Rd8 Qe6 27.Nc1 Qe7 28.Re8 Ne8 29.Nb3 h5 30.Bc3 Bh6 31.Na5 Bf4 32.Nc4 h4 33.Ne3 Nf6 34.Qd6 Qd6 35.cd6 Be3 36.fe3 Nd7 37.Kg2 f6 38.Kh3 g5 39.f4 Kf7 40.Kg4 Ke6 41.Be1 Kd6 42.fg5 fg5 43.Kg5 c5 44.bc5 Nc5 45.Kf5 Nd3 (45...Nd3 46.Bh4 b5-+) 0–1. Vilela,J – Espig,L, Halle, 1981.

10.de5 de5 11.e4 Qe7 12.a3 a5 13.ba5 Nc5 14.Qc2 Ne6 15.Na4 Nd7 16.Bc3 Nd4 17.Qb2 c5 18.Nb6 Nb6 19.ab6 Be6 20.a4 f5 21.ef5 gf5 22.Rfe1 Qd6 23.Red1 Qc6 24.Bf1 Ra4= 25.Ra4 Qa4 26.Ra1 Qc6 27.Ng5 Bd7 28.Bd4 cd4 29.c5+= h6 30.Qb3+/- Kh8 31.Nf7 Kh7 32.Nd6 Re7 33.Qb4+/- e4 34.Bb5 Qd5+/- 35.Bc4 Qe5 36.Nb7 e3 37.f4 Qf4+= 38.Rf1 Qg5 39.Bd5?? e2-+ 40.Re1 Qe3 41.Kh1 Qf2 42.Qb1 d3! 43.c6 d2 44.Bg8 Kh8 45.Rg1 e1Q (45...e1Q 46.Re1 de1Q 47.Qe1 Re1#) 0–1. Khatenever,F (2035) – Kulikov,E (2235), Chigorin CC, St Petersburg RUS, 2005. (=1.d4 Nf6 2.e3 d6 3.c4 g6 4.Nf3 Bg7 5.Nc3 0-0 6.Be2 Nbd7 7.b4 e5 8.Bb2 c6)

9.ed4 c5 10.Qb3=.

9.ed4 d5 10.c5 a5 11.b5 a4 12.Rc1 Ne4 (12...a3 13.Ba1=) 13.0-0 (13.Na4 c6+=) 13...a3= 14.Ba1 Ndf6 15.Ne5 White prepares c6 15...Bh6 16.Rc2 Nc3 17.Bc3 Ne4 18.c6 b6 19.Bg4 Qd6 20.Bc8 Rfc8 21.Qd3 Bg7 22.Re2 Re8 23.Ba1 Qe6 24.Rfe1 Qf5 25.Qb3 Be5 26.de5 Nc5 27.Qb1 Qb1 28.Rb1 Ra4 29.Rd2 Rd8 30.Rd4 Rc4 31.Rbd1 Rc2 32.R4d2 (32.Rd5?? Rd5 33.Re1 Ra2-+) 32...Rd2 33.Rd2 Ne6 34.Bd4 Ra8 35.Be3 d4 36.Bd4 Ra5 37.Be3 Rb5 38.f4 Rb2 39.g4 Kg7 40.h3 h5 41.Rd7 (better 41.Kf1!?=) 41...Ra2–/+ 42.f5 Re2 (42...Re2 43.fe6 Re3 44.Rc7 Re1 45.Kf2 a2 46.Rf7 Kg8=+) 0–1. pierred (2825) – aperturaf (1800), net–chess.com, 2016.

9.ed4 Re8 10.0-0 c6 11.a4 a5 12.b5 c5 13.Re1 b6 14.Qd2 Bb7 15.d5 Ne4 (15...Ng4 16.Qf4 Nge5 17.Nd2+=) 16.Ne4+- Re4 17.Bg7 Kg7 18.Bd3 Re1 19.Re1 Nf6 20.Qc3 Qd7 21.Ng5 Re8 (21...Qd8!?+-) 22.Re8 Qe8 23.Nh7! Qe5 (23...Kh7 24.Qf6 Deflection (24.Qf6 Overloading)) 24.Qe5 de5 25.Nf6 Kf6 26.h4 Ke7 27.g4 Bc8 28.f3 f5 29.h5 Kf6 (29...gh5 30.Bf5 hg4 31.Bc8 gf3+-) 30.h6 fg4 31.fg4 Bg4 32.h7 Kg7 33.Bg6! 1–0. Gardner,Allan – Tolhurst,Philip, BCCA Webserver Preliminary Group, 2006.

9.ed4 Nh5 10.0-0 Nf4 11.Re1 Ne2 (11...d5 12.Bc1 Ne2 13.Qe2=) 12.Re2 (12.Qe2 Nf6+=) 12...Nb6= 13.c5 Nc4 14.Bc1 (14.Qd3 Nb2 15.Rb2 Re8=) 14...dc5 (14...Bg4!? 15.Bg5 f6=) 15.bc5 (15.Bg5 f6 16.Qb3 fg5 17.Qc4 Kh8=+) 15…Bg4=+ (15...Bg4 16.Bg5 Qd7=). Arnst – Schubert, 1972.

9.Nd4 a5 10.b5 Re8 (10...Nc5 11.0-0=) 11.0-0 Nc5 12.Qc2 a4 13.Ba3 (13.Rad1 Nfd7=) 13...Nfe4 14.Ne4 Ne4 15.Rad1 Qe7 16.Bf3 Bd7 17.Bb4 Bc8 18.Ne2 (18.a3 Bd7=) ½–½. Hinz,Juergen (1905) – Buchholz,Dieter (2115), remoteschach.de, 2005.

9.Nd4 c5 10.Nc2 Nb6 11.bc5 (11.Nb5 Bf5=) 11...dc5 12.Na3 (12.0-0 Be6 13.Na3 Ne4=) 12...Ne4=+ 13.Qd8 Rd8 14.Rc1 (14.Ne4? Bb2 15.Nc2 Ba1 16.Na1 Nd7–/+) 14...Be6 15.f3 (15.Nab5 Nd2 16.Nc7 Rab8 17.Ne6 fe6=) 15...Rd2 (better is 15...Nd2–/+) 16.fe4? (16.Ne4 Rb2 17.Rc2 Rc2 18.Nc2–/+) 16...Rb2-+ 17.Nd5 (17.g4-+) 17...Be5 (17...Ra2 18.Nb6 ab6 19.Nb5-+) 18.Bf3? (better is 18.Rc2–/+) 18...Ra2-+ 19.Nb1 Rd8 (19...f6 20.Nbc3 Rb2 21.Nb6 Rb6 22.Nd5-+) 20.0-0 Kg7 21.Nbc3 Ra3 22.Nb5 Ra4 23.Be2 Ra2 24.Rfe1 h6 25.Bf1 Nc8 26.Nf4 Rad2 27.Nc3 Nd6 28.Ne6 fe6 29.Nb1 Rb2 30.Rcd1 Bf6 31.Bd3 Nf7 32.Bf1 Rd1 33.Rd1 Bg5 34.Re1 a6 35.Nc3 Rb3 (36.Na4 Be3 37.Re3 Re3 38.Nc5 Ng5-+) 0–1. Petersen – Dopper,Johan, corr 3GMM–07, 1995.

9.Nd4 c5 10.bc5 dc5 11.Nb3 Ne4 12.Qc2 Nc3 13.Bc3 Bc3 14.Qc3 Qe7 15.0-0 Ne5 16.Rad1 b6 17.f4 Bg4 18.Rd5 (18.Qe5? Qe5 19.fe5 Be2-+) 18...Be2 19.Re5 Qd7 20.Rd5 Qa4 21.Rc1 Bg4 (21...Qa2? 22.Rd2 Qa3 23.Re2+-) 22.Nd2 Rfe8 (22...Qa2?? 23.Ra1 Qa1 24.Qa1+-) 23.Re1 Bf5 (23...Qa2? 24.Ra1 Re3 25.Qc1 (25.Ra2? Rc3 26.Rd6 Kg7-+) 25...Qa1 26.Qa1+-) 24.e4 Be6 (24...Qa2? 25.Ra1 Qa1 26.Qa1 Be4 27.Rd7+- (27.Ne4?! Re4 28.Rd7 Rc4+-)) 25.Rd6 Rad8 (25...Qa2? 26.Ra1 Bc4 27.Ra2 Ba2 28.e5+-) 26.e5 Bf5 (26...Qa2?? 27.Ra1 Bc4 28.Ra2 (28.Nc4?! Qe2+-) 28...Ba2 29.Qa3+-) 27.Nb3 (27.Rd5!?=) 27...Qa2–/+ 28.Red1 (28.Ra1!? Qe2 29.Qd2 Qd2 30.Nd2–/+) 28...Rd6-+ 29.Rd6 Qb1 30.Nc1 Qe4 31.Qd2 Qc4 32.Rd8 Qa4 33.Ne2 Kg7 34.Rd6 Re6 35.Rd8 Re8 36.Rd6 Re6 37.Rd8 Re8?? (37...Qa1 38.Kf2 Qh1=) 38.Rd6= ½–½. Schmidt,Wlodzimierz – Ostojic,Predrag, Rubinstein Memorial, 1970. (=1.Nf3 g6 2.c4 Bg7 3.d4 d6 4.Nc3 Nd7 5.e3 e5 6.Be2 Ngf6 7.b4 0-0 8.Bb2 ed4)

9.Nd4 c5 10.bc5 dc5 11.Nb3 Ne4 12.Qc2 Nc3 13.Bc3 Qe7 14.Bg7 Kg7 15.Qc3 Kg8 16.0-0 Nb8 17.Rad1 b6 18.e4 (18.Bf3 Bb7 19.Bb7 Qb7+=) 18...Bb7 (18...Qe4?? 19.Bf3 Qf4 20.Ba8+-) 19.f4 White intends e5 (19.e5 Nc6 20.f4 Rad8+=) 19...Nc6 (19...Be4!? 20.Rfe1 Qb7=+) 20.Bf3+= a5 21.e5 a4 22.Nc1 Nd4 23.Bb7 Qb7 24.Rde1 Rad8 25.Nd3 Rfe8 26.Rf2 Qc6 27.h3 Re7 28.Kh2 Red7 (28...Qe6!?=) 29.e6+= fe6 30.Ne5 Qd6 31.Nd7 Rd7 32.Re5 Rf7 33.Qe1 Qc6 34.Qe3 Kh8 35.h4 Nf5 36.Qd2 Nd4 37.Qd1 White prepares h5 37...Kg8 38.h5 Rf8 39.hg6 hg6 40.Qd3 Kg7 41.Qe3 Rh8 42.Kg1 Kf7 43.Rd2 Qd7 44.Rd3 Rd8 45.Kf2 Rh8 46.Rg5 Qc6 47.Qe5 Rh2?? (better 47...Rh6+-) 48.Rdg3 (better 48.Rg6! Rg2 49.Rg2 Qg2 50.Kg2 a3 51.Rh3 Nf5 52.Rh7 Kg6 53.Rb7 Nh4 54.Kh3 Nf5 55.Qe6 Kh5 56.Qf5 Kh6 57.Rh7) 48…Rh6 ½–½. Kushch,Nikolai (2375) – Sergeev,Vladimir (2450), UKR–ch op Alushta, 1999. (=1.c4 g6 2.Nf3 Bg7 3.Nc3 d6 4.d4 Nd7 5.e3 e5 6.b4 Ngf6 7.Bb2 0-0 8.Be2 ed4)

9.Nd4 c5 10.bc5 dc5 11.Ndb5 Nb6 (11...Ne8 12.0-0+=) 12.Qb3+= Ng4 13.h3 (13.Ne4 Bb2 14.Qb2 Qe7=) 13...Ne5= The isolani on c4 becomes a target 14.0-0 (14.Rd1 Qg5 15.g3 Bd7=) 14...Be6 Increasing the pressure on the isolated pawn on c4 15.Rad1 Qh4 Increasing the pressure on the isolated pawn on c4 16.Nc7 (16.Nd5 Bd5 17.cd5 Rfd8+-) 16...Nec4= 17.Ne6 (worse 17.Na8 Ne3 (17...Nb2?! 18.Qb2 Na4 19.Qb7 Nc3 20.Bf3=+) 18.Qb5 Nd1 19.Nd1 Ra8 20.Bg7 Kg7 21.Qc5 Ba2–/+) 17...Nb2 (worse 17...fe6 18.g3 Qh3 19.Bc4 Nc4 20.Qc4+-) 18.Nf8 ½–½. Dreev,Alexey – Shirov,Alexei, zt Lvov, 1990. (=1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 0-0 5.e3 d6= 6.Be2 Nbd7 7.b4 e5 8.Bb2 ed4)

9.Nd4 Ne5 10.0-0 a5 11.b5 Be6 12.Ne6 fe6 13.Qc2 (13.Qd2 Qe7=) 13...Qe7 14.Na4 Ned7 15.e4 (15.Bf3 Rab8+=) 15...Ne8= 16.Bg7 Ng7 17.Rad1 b6 18.f4 Rf7 19.Bg4 (19.Nc3!?=) 19...Raf8=+ 20.g3 g5 21.fg5 Qg5 22.Rf7 Rf7 23.Qe2 Ne5 24.Bh3 Rf3 25.Rf1 (25.Nb2 Ra3–/+) 25...Qe3 26.Qe3 Re3 27.Rc1 (27.Nb2!?–/+) 27...Re4 28.Bf1 Nf5 (28...Rd4 29.Rc2-+) 29.Nc3 Rd4 30.Ne2 (better 30.Rd1-+) 30...Rd2 (30...Rc4?! 31.Rc4 Nc4 32.Nf4–/+) 31.a4 (31.a3 Ne3-+) 31...Ne3 (31...Ra2 32.Rc3-+) 32.Kf2 (32.Rc3 Nd3 (32...N3c4?! 33.Bh3-+) 33.g4 Rd1-+) 32...N3c4 33.g4 0–1. Egartner,Wolfgang (2145) – Fellhauer,Clemens, Verbandsliga Nord Baden, 1998. (=1.d4 d6 2.c4 Nd7 3.Nf3 g6 4.e3 Bg7 5.Be2 Ngf6 6.Nc3 0-0 7.b4 e5 8.Bb2 ed4)

9.Nd4 Ne5 10.0-0 b6 11.Qb3 Bb7 12.Rad1 Qe7 13.Nd5 Qd8 (13...Nd5 14.cd5 a5 15.f4+=) 14.f4+- Ned7 15.Bf3 Kh8 (15...Rb8 16.a3+-) 16.Rde1 (16.Nb5 Nd5 17.Bg7 Kg7 18.cd5 Kg8+-) 16...Ne8 (16...Nd5 17.cd5 a5 18.Nc6 Bc6 19.dc6+-) 17.e4 (17.Nb6 Bf3 18.Nd7 Bg2 19.Nf8 Bf1 20.Rf1 Qe7+-) 17...c5 18.Nb5 cb4 19.Bg7 Ng7 (19...Kg7 20.Qb4 Bd5 21.cd5+-) 20.Qb4 (20.Rd1 Bd5 21.Rd5 Ne6 22.Rd6 a6 23.Qb2 Kg8+-) 20...Bd5 21.cd5 Nc5 22.Qd2 Qd7 23.Nd4 f6 24.Nc6 Rac8 25.Re3 Kg8 26.Rfe1 Rc7 27.h3 Kh8 (27...Re8 28.Bg4 Qf7 29.e5 de5 30.fe5+-) 28.Kh1 (28.Bg4 Qe8+-) 28...Nh5 (28...Kg8!?+=) 29.Bh5+- gh5 30.Qd1 h4 31.e5 (31.Qh5 Qf7 32.Qh4 Rg8+-) 31...f5 (31...fe5 32.fe5 de5 33.Re5+-) 32.e6 (32.Qd4 de5 33.Re5 Qg7 34.Rf5 Qd4 35.Nd4 Rcf7 36.Rf7 Rf7+-) 32...Qg7 33.e7 (33.Qh5 Ne4 34.e7 Re7 35.Ne7 Qe7+-) 33...Rg8 (33...Re8 34.Qh5 Qg6 35.Qh4+-) 34.Qf3 (34.Rg3! Qg3 35.Qd4 Qg7+-) 34...Ne4+- 35.Re4 fe4 36.Qe4 Re8 37.f5 (37.Qe6 Qg6+-) 37...Qf6+- 38.Qe6 Kg7 39.Re4 h5 40.Kh2 b5 41.Rh4 Ree7 42.Ne7 (42.Qf6 Kf6 43.Ne7 Re7 44.Rh5 Re2+-) 42...Re7 (42...Qh4?? 43.Qg8 Kf6 44.Qf8 Kg5 45.Qg7 Kf4 46.Ng6 Ke4 47.Qc7+- (47.Nh4? Rg7 48.Kg1 Kd5-+)) 43.Qf6 Kf6 44.Rh5 Re2 45.Rh6 Kf5 46.Rd6 (46.a3 Ra2 47.Rd6 Ra3+=) 46...Ra2+= 47.Rd7 (47.h4 Ke5 48.Rd8 b4+-) 47...Ke5 (47...a5!?=) 48.h4 b4 49.h5 b3 50.Rb7 (50.h6 Ra6 51.d6 Rd6 52.Rd6 Kd6+-) 50...b2= 51.d6 Kd6 52.h6 Kc6 ½–½. Walter,Guenter – Hesse,Peter, DDR–ch, 1973. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 Nbd7 7.d4 e5 8.Nc3 ed4)

9.Nd4 Ne5 10.0-0 c5 11.bc5+= dc5 12.Nf3 Nfg4 13.Qb3 Be6 The isolani on c4 becomes a target (13...Nf3 14.Bf3 Ne5 15.Bd5+= (15.Bb7? Rb8-+)) 14.Rad1 (14.Qb7? Rb8 (14...Nc4?! 15.Bc4 Bc4 16.Rfc1–/+; 14...Bc4?! 15.Bc4 Nc4 16.Qb3 Nb2 17.Qb2=) 15.Qa7 Rb2 16.Ne5 Ne5-+) 14...Qb6 15.Na4 Qc7 (15...Qb4 16.Qb4 cb4 17.Ne5 Ne5 18.Be5 Be5 19.Nc5+=) 16.Ne5 Be5 (16...Ne5 17.f4 Ng4 18.Bg7 Kg7 19.Nc3+=) 17.Be5 Ne5 18.Nc3 f6 (18...Qb6 19.Nd5 Qb3 20.ab3+=) 19.Nd5+- Bd5 20.cd5 c4 21.Qb4 Qb6 (21...Rfc8 22.d6 Qb6 23.Qc3+-) 22.Qb6 ab6 23.f4 Nd3 (23...Ra2 A) 24.fe5?! Re2 25.d6 Re3= (25...fe5?? 26.Rf8 Kf8 27.d7 Re1 28.Re1+-); B) 24.Rf2 Nf7 25.Bc4+-) 24.Bd3 cd3 25.Rd3 Ra2 26.Rc1 Rd8 27.Rc7 Ra5 (27...b5 28.d6+-) 28.d6 Rc5 (28...f5 29.Rb7 Ra6 30.Kf2+-) 29.Rb7 (29.Re7 Rc6 30.d7 Kf8 31.Rh7 Kg8+-) 29...Rc6+- 30.d7 Kf7 31.Kf2 Ke7 32.Kf3 h5 (32...f5 33.g4+-) 33.h3 (33.e4 b5+-) 33...Ke6 (33...b5 34.Rb5 Rd7 35.Rd7 Kd7 36.Rb7 Kd8 37.g4+-) 34.Rd4 (34.e4 Ke7+-) 34...Ke7 35.g3 (35.g4 hg4 36.hg4 b5+-) 35...Ke6 (35...b5 36.Rb5 Rd7 37.Rd7 Kd7 38.Rb7 Kc8 39.Rf7+-) 36.Ke4 (36.Rd3 Ke7+-) 36...Ke7 37.f5 gf5 (37...g5 38.h4+-) 38.Kf5+- Rc5 39.Kf4 b5 40.e4 Rc1 (40...Re5 41.Rd5 Rd5 42.ed5+-) 41.h4 b4 (41...Rf1 42.Ke3 Re1 43.Kf2+-) 42.Rbb4 (42.Rd5 Rf1 43.Ke3 Re1 44.Kf3 Rb1+-) 42...Rd7 (42...Rf1 43.Ke3 Rd7 44.Rd7 Kd7 45.Rb5+-) 43.Rd7 Kd7 44.Rb5 Rf1 45.Ke3 1–0. Ider,B (2460) – Navrotescu,C (2365), 15th Sautron Open, 2015. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Be2 d6 6.Bb2 Nbd7 7.c4 e5 8.Nc3 ed4)

9.Nd4 Ne5 10.h3 Re8 11.0-0 c6 12.Rc1 Qe7 13.Qb3 g5 14.Qc2 Qd7 15.f4 gf4 16.ef4 Ng6 17.Bd3 Re3 (17...Qd8 18.a3=) 18.Nf5 (18.Qd2 Qe8+-) 18...Rd3+= 19.Ng7 Rg3 20.Ne4 Ne4 21.Qe4 Qh3 22.Rf2 (22.Rc3! Qg2 23.Qg2 Rg2 24.Kg2 Kg7 25.Rd3 Kf8 26.Rd6+=) 22...Bg4 (22...a5 23.Ne8 Be6 24.Nf6 Kf8 25.f5 Bf5 26.Rf5 Rg2 27.Qg2 Qf5 28.Nh7 Ke7 29.Rf1+-) 23.Rcc2 (23.Ne8 Rd8+=) 23...Nh4 (better 23...a5!?–/+) 24.Ne8= Kf8 25.Nf6?? (better 25.Bg7 Kg8 26.Bb2=) 25...Bf5-+ 26.Qe2 (26.Nh7?? Bh7 27.Qh7 Nf3 28.Rf3 Qh7-+) 26...Bc2 27.Qc2 Rg2! 28.Rg2 Nf3 (28...Qg2 29.Qg2 Ng2 30.Nh7 Ke7 31.Kg2=) 29.Kf2 Qg2!! 30.Kg2 Ne1 31.Kf2 Nc2 32.a3 (32.Nh7 Ke7 33.Bf6 Ke6-+) 32...c5 (better 32...h6!? 33.Ke2 a5 34.b5-+) 33.bc5 dc5 34.Nd7 (34.Nh7 Ke7-+) 34…Ke7 (34...Ke7 35.Nc5 Rc8-+) 0–1. Lebermann,Hellmuth – Kleinschmidt,Felix, Hessen qual, 1990. (=1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 0-0 5.e3 d6 6.Be2 Nbd7 7.b4 e5 8.Bb2 ed4)

9.Nd4 Re8 10.0-0 a6 11.a3 Ne5 12.Qc2 Bg4 13.Rfd1 Be2 14.Qe2 Qc8 15.Nd5 Ned7 16.Rac1 c6 17.Nf6 Nf6 18.Nb3 Qc7 19.Bd4 Rad8 20.Qb2 Nh5 21.Bg7 Ng7 22.Rd3 Re5 23.Rcd1 Qe7 24.Nd4 Ne8 25.Nf3 Re4 26.Qc3 f5 27.h3 Nc7 28.Nd2 Re6 29.Nb3 Rf6 30.Na5 Ne8 31.b5 ab5 32.cb5 c5 33.Nc4 Re6 34.Qb3 Kg7 35.Nb6 Re4 36.f3 (36.Qc3 Qe5+-) 36...Re5+= 37.Qc3 Kh6 38.Nd5 Qd7 39.a4 Qe6 40.g4 (40.a5 Nf6 41.Nb6 Kh5+-) 40...g5 41.R1d2 Nf6 42.Nf6 Qf6 43.Rd5 Kg6? (43...fg4 44.hg4 Kg6 45.Re5 de5 46.Qc2 Kg7 47.Rd8 Qd8=) 44.Qe5!!+- de5 (44...de5 45.gf5 Double attack (45.Rd8 Pinning; 45.Rd8 Deflection); 44...Qe5 45.gf5 Double attack (45.gf5 Decoy)) 45.Rd8 1–0. Espig,Lutz (2395) – Maier,Christian (2315), Balatonbereny op, 1986. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 Nbd7 8.Nc3 ed4)

9.Nd4 Re8 10.0-0 Nb6 11.a3 Nfd7 12.Qc2 a5 13.Ncb5 Ne5 14.c5 dc5 15.bc5 (worse 15.Qc5 c6 16.Nd6 Bf8-/+) 15...Nd5 16.c6 (16.Rfd1 Bd7+=) 16...Qe7 17.Rad1 Ra6 18.Nc3 Nc3 19.Bc3 Ra8 20.Qb2 bc6 21.Nc6 Qe6 (21...Nc6!? 22.Bg7 Ba6 23.Ba6 Ra6+=) 22.Ne5+/- (22.Na5? Ra5 23.e4 Qf6-+) 22...Be5 23.Be5 (23.Bf3 Bc3 24.Qc3 Ra7+/-) 23...Qe5 24.Qe5 Re5 25.Rd8 Kg7 26.Rc1 Re7 27.Bf3 c6 (27...Rb8 28.Bg4 f5 29.Be2+/-) 28.Rc6 Bb7 29.Ra8 Ba8 30.Rc5 Bf3 31.gf3 Ra7 32.a4 Kf6 33.Kg2 Ke6 34.f4 Kd6 35.Rb5 Kc6 36.f5 Ra8 37.Kf3 f6 38.h4 Ra7 39.fg6 hg6 40.Kg4 Kd6 41.h5 gh5 42.Rh5 (42.Kh5!? Ra6+-) 42...Ke6 43.Rb5 Ra8 44.Kf4 Ra6 45.e4 Ke7 46.Kf5 Kf7 (46...Kd7 47.Kg6+-) 47.Rb7 Ke8 48.f3 Kd8 (48...Kf8 49.Kg6+-) 49.Rf7 Rc6 50.Ra7 (50.Rf6?! Rc4+-) 1-0. Yurtseven,M (2380) - Tasdogen,Dincer (2310), TCh-TUR Super League, 2019. (=1.d4 d6 2.Nf3 Nf6 3.c4 Nbd7 4.Nc3 e5 5.e3 g6 6.Be2 Bg7 7.b4 0-0 8.Bb2)

9.Nd4 Re8 10.Qd2 a5 11.b5 Nc5 12.Bf3 (12.0-0 Nfe4 13.Ne4 Ne4=) 12...Nfd7 13.Rd1 Nb6 (13...Ne5 14.Qe2=+) 14.Qe2 h5 (14...Qh4 15.0-0=) 15.Nd5 (15.0-0 Qg5+=) 15...Nbd7 (15...Nd5 16.Bd5 Bg4 17.Nf3=) 16.b6+= cb6 17.Nb5 Bb2 18.Qb2 Ne5 19.Ke2 (19.Be2 Qg5 20.g3 Qf5 21.Nd6 Nf3 22.Bf3 Qf3 23.Ne8 Qh1 24.Kd2 Ne4 25.Kc1 Qd1 26.Kd1 Bg4 27.Ke1 Re8 28.Qb6 Kg7+-) 19...Na6 (19...Bf5!? 20.Ndc7 Bd3 (20...Nc4 21.Qc3 Ne3 22.fe3+-) 21.Rd3 Ncd3–/+ (worse 21...Ned3 22.Qd4+=)) 20.Qd4 Attacking the backward pawn on b6 20...Bf5 (20...Bg4!? 21.Bg4 hg4 22.Qb6 Nc4 23.Qd8 Red8+-) 21.Nb6+- (21.Nb6 Rb8 22.Nd6+-) 1–0. Davis,Tony J – Chan,Jason (2140), Oceania zt Auckland, 2005. (=1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 0-0 5.e3 d6 6.Be2 Nbd7 7.b4 e5 8.Bb2 ed4)

10.a4 a5 11.b5 Nb6 12.0-0 Qe7 13.Rc1 Qe6 14.Qc2 Bd7 15.c5 dc5 16.dc5 Nbd5 17.Bc4 c6 18.Nb3 Qf5 19.Nd5 cd5 20.Be2 Qg5 21.Rfd1 Re7 22.Qd2 Qh4 23.h3 Qg5 24.Kf1 Be6 25.Na5 h6 26.c6 bc6 27.Nc6 Rd7 28.a5 d4 29.Bd4 Bb3 30.Rc5 Qh4 31.Rb1 Rd4 32.ed4 e3 33.Qe3 Ba2 34.Rb2 Re8 35.Ne7 Kf8 36.Re5 Re7 37.Re7 Be6 38.Re6 fe6 39.Bc4 Qh5 40.Re2 Qf5 41.Qa3 Kf7 42.Be6 Qe6 43.Re6 (43...Ke6 44.Qg3+-) 1–0. Pierred (2280) – 603015 (2425), Rated game, 1m + 0s, 2006.

10.a4 c5 11.Nb5 Bf8 12.bc5 dc5 13.dc5=.

10.a4 c6 11.0-0+= d5 12.a5 a6 13.Qb3 Nf8 14.Rae1 Be6 15.f3 ef3 16.Nf3 dc4 17.Bc4 Ng4 18.Nd1 Bc4= 19.Qc4 Qd5 20.Qc2 f5 21.h3 Nf6 22.Ne5 Ne4 23.Nc3 Nc3 24.Qc3 Nd7 25.Nd7 Qd7 26.Rf4 Qd5 27.Rh4 Bf8 28.Re2 Bd6 29.Kh1 Re6 30.Kg1 Rae8 31.Qe1 f4-+ 32.Bc1 fe3 33.Bb2 Qf5 34.d5 cd5 35.Qd1 Bg3 36.Rg4 Qf2! 37.Kh1 Rf8 38.Rg3 Qg3 39.Kg1 Rf2 40.Qd5 Qd6 41.Qb7 Qf8 42.Qd5 Rf1 43.Kh2 Qf4 44.g3 Rf2 45.Rf2 Qf2 46.Qg2 Qd2 47.b5 ab5 48.Kh1 Rd6 (49.Kh2 Qb2 50.Qb2 Rd2 51.Kg1 Rb2-+) 0–1. Pierred – Perepe, Rated game, 5m + 0s, 2005.

10.a4 Nf8 11.b5 h5 12.a5 h4 13.h3 Bf5 14.Qb3 Ne6 15.a6 b6 16.Na4 Nd7 17.0-0-0 Qg5 18.Rdg1 Rac8 19.g4 hg3 20.fg3 c6 21.Kb1 cb5 22.cb5 Nd4 23.Bd4 Bd4 24.Nc4 Be5 25.h4 Qe7 26.g4 Be6 27.Qb4 d5 28.Qe7 Re7 29.Ne5 Ne5 30.g5 Nc4 31.h5 Ne3 32.hg6 fg6 33.Rh6 Kg7 34.Rgh1 Bg8 35.Rc1 Rc1 36.Kc1 d4 37.Nb2 Rc7 38.Kb1 d3 39.Nd3 ed3 40.Bd3 Nf5 41.Rh3 Bc4 42.Kb2 Nd6 43.Bc4 Nc4 44.Kb3 Nd6 45.Kb4 Ne4 0–1. Stevanovich – Sprague, Cleveland 1980.

10.a4 Nf8 11.h3 h5 12.b5 c6 13.a5 Bd7 14.Qc2 cb5 15.cb5 d5 16.Qb3 Bf5 17.a6 b6 18.0-0-0 Rc8 19.Kb1 Qd7 20.Rc1 h4 21.Na2 Rc1 22.Rc1 Ne6 ½–½. Pinus – Kuhnert, 1992.

10.Qc2 a5!? 11.ba5 Ra5 12.Nce4 Ne4 13.Ne4 Qh4=.

10.Qc2 d5 11.g4 a5 12.b5 (< 12.Nd5 Nd5 13.cd5 Nf6=) 12...c5 (12...c6 13.g5+-) 13.bc6 (13.Nd5?! Nd5 14.cd5 cd4 15.Ne4 Qe7=; 13.cd5?! cd4 14.ed4 Nb6=+) 13...bc6 14.g5 Nh5 15.Rg1 (15.cd5 cd5 16.Nd5 Bb7+/- (16...Qg5? 17.Nc7 Bb7 18.Ne8 Re8 19.Qc7+-)) 15...Ba6 16.Bh5 gh5 17.cd5 Bd3 18.Qd1 c5 19.dc5 Rb8 20.Qc1 (20.Nb3!? Ne5 21.f4 Nf3 22.Kf2 Bc3 23.Bc3=) 20...Nc5=+ 21.Nb3 Qd6 22.Nd1? (22.Rg2 Nb3 23.ab3 Rb3 24.Ra4 Bc3 25.Bc3-+) 22...Nb3-+ 23.ab3 Rec8 (23...Rec8 24.Bg7 Rc1 25.Rc1 Kg7-+; 23...Qd5?! 24.Bg7 Kg7 25.Qc3 Qe5 A) 26.Ra5 Qc3 27.Nc3 Rec8=+; B) 26.Qa5?? Qh2 (26...Rb3?! 27.Qe5 Re5 28.h4=+) 27.Rg3 Red8-+; C) 26.Rc1=) 0–1. Arencibia Rodriguez,Walter (2425) – Paneque,Pedro (2380), Pinar del Rio zt, 1990.

11.0-0 a5 12.a3 c5+=.

11.0-0 c6 12.a3+=.

11.0-0 Nf8 12.a4 (12.Rfc1 Bf5+=) 12...h5 (12...a5 13.b5+=) 13.h3 (13.a5 h4+=) 13...Bf5 (13...a5 14.b5+=) 14.Rac1 (14.a5 c5 15.bc5 dc5+=) 14...Ne6 (14...c5 15.bc5 dc5 16.d5+=) 15.d5 Ng5 16.Nb5 (16.a5!?+=) 16...Nh3 17.gh3 Bh3 18.Rfd1 (18.Rfe1+=) 18...Ng4 19.Bg4 Qg5 20.Ne4?? Bg4 21.Ng5+- (21.Ng5 Bd1 22.Rd1 Bb2 23.Qb2+-) 1-0. pumpkin (2280) - sbibby (2000), net-chess.com, 2008.

11.0-0 h5 12.Rfc1 c6 13.d5 c5 14.a3 b6 15.Nb5 Ne5? (better 15...Nf8!?+=) 16.bc5 (16.Ne4?! Ne4 17.Qe4 Bf5=) 16...bc5 17.Ne4 (better 17.Be5 de5 18.d6+- (18.Ne4?! Ne4 19.Qe4 Bf5=+)) 17...Ne4= 18.Qe4 Bf5 19.Qf4 Nf3?? (better 19...Bd3 20.Nd6 Be2 21.Ne8 Re8-/+) 20.Bf3+- (20.gf3?! Bb2 21.Nd6 Qf6 22.Ne8 Re8+/-; worse 20.Qf3 Bb2 21.Bf1 a6-/+) 20...Bb2 21.Nd6 Ba1 (21...Qf6!? 22.Ne8 Re8 23.Rab1+/-) 22.Ra1 (22.Ne8 Be5 23.Qh6 Re8-+) 22...Qf6 (22...Qe5 23.Rc1 Qf4 24.ef4+-) 23.Rf1 (23.Rd1 Red8 24.Nf5 Qf5 25.Qf5 gf5 26.Bh5 Rab8+-) 23...Re5 24.Ne4 (24.Nf5?! Qf5 25.Qf5 Rf5+/-) 24...Qg7 25.Ng3 (better 25.Nc5!? Rc8 26.Nb7+-) 25...Bd3+/- 26.Rd1 g5 27.Nh5 gf4 28.Ng7 Bc2 29.Rc1 (29.ef4 Bd1 30.fe5 Bf3=) 29...fe3 (29...Kg7 30.Rc2 Rb8 31.Kf1 fe3 32.fe3 Re3 33.Ra2+=) 30.Rc2 Kg7 31.fe3 Re3 32.Rb2 (32.Ra2 Rh8+/-) 32...Ra3 (32...Rc3!?=) 33.Rb5+= Rc3 (33...Rc8 34.Bg4 Rc7 35.d6+=) 34.Rc5+/- a5 35.d6 Rd8 36.Bd5 (36.Ra5 Rc4 37.Rd5 Kf6=) 36...Rd6 (36...a4 37.Ra5 a3 38.c5+=) 37.Ra5+/- Rf6 (37...f5 38.Kf2+/-) 38.h3 Rc1 39.Kh2 Rcf1 40.Ra7 R1f2 (better 40...R1f4+/-) 41.c5?? (41.h4 Rd2+-) 41...R2f5?? (better 41...R6f5 42.Kg3 Rc2=+) 42.Rd7+/- Re5 43.c6 Rd5 44.Rd5 Rc6 45.Rg5 Kf8 46.Ra5 Re6 (46...Rc4 47.g4+/-) 47.Kg3 (47.g4 Re2 48.Kg3 Re3 49.Kg2 Kg7+-) 47...Kg7 (47...Rg6 48.Kf3+/-) 48.h4+- Rg6?? (48...Re1 49.Kf4+-) 49.Kh3 (better 49.Rg5+-) 49...Rc6 50.g3 Rc4 51.Rf5 Kh7? (51...Kg6 52.g4+-) 52.Rf4 (better 52.Rf7!? Kg6 53.Rb7 Rc3+-) 52...Rc7 53.Kg4 Kg7 54.Rf5 Rc6 55.Kh3 Re6 56.Rf3 Rc6 57.g4 Re6 58.h5 Re5 59.Kh4 f6 60.Kg3 Re1 61.Ra3 Rg1 62.Kf4 Rf1 63.Rf3 Rg1 64.Rd3 Rf1 65.Ke4 Rg1 66.Rd7 Kh6 67.Kf3 Rf1 68.Kg2 Rf4 69.Kg3 Rf1 70.Rf7 Kg5 71.Rg7 Kh6 72.Rg6 Kh7 73.Kg2 (73.Kh2!?+/-) 73...Rf4= 74.Kh3 Rf3 75.Kh4 White prepares the advance g5 (75.Kh2 Rf2 76.Kg1 Rf3=) 75...Rf4= 76.Kg3 Rf1 77.Kg2 Rf4 78.Kh2 (78.Kg1!?+/-) 78...Rf1 79.g5 fg5 (better 79...Rf5!?=) 80.Rg5+/- Rf6 81.Ra5 (81.Kg3 Kh6 82.Rd5 Rf1=) 81...Rh6 (81...Rf3 82.Rd5+/-) 82.Kg3 Rf6 (82...Rd6 83.Kh4 Kh6 84.Ra4+=) 83.Kg4 Re6 84.Kg5 Re1 85.Ra7 Kh8 86.Kh6?? (better 86.Rd7+-) 86...Re6= 87.Kg5 Rd6?? (87...Re1 88.Kg6 Rg1 89.Kh6 Rg7 90.Ra8 Rg8+/-) 88.Rb7 Rc6 89.Rb8 Kh7 90.Rb7 Kh8 91.Rb1 (91.Rb5 Rc7+/-) 91...Rd6? (91...Rc5 92.Kg4 Rc4 93.Kf5 Rc5 94.Kg6 Rc6 95.Kf7=) 92.Rf1 (92.Rb8 Kh7 93.Rb7 Kh8+-) 92...Rc6? (better 92...Rd5!? 93.Kg6 Rd6 94.Kf7 Rd5=) 93.Rf5+- Kh7 94.h6 (better 94.Rf7 Kh8 95.Rf4+/-) 94...Rh6 95.Rf7 Kg8 96.Kh6 Kf7 ½-½. Jacobson,Brandon (2490) - Chen,Ryo (2180), Junior Speed Q Americas, 2021.

11.a4 a5 12.Nd5 Nd5 13.cd5=.

11.a4 Nf8 12.b5 (12.0-0 a5+=) 12...h5 (12...c5 13.dc5 dc5 14.0-0+=) 13.h3 (13.0-0 c5+=) 13...Bf5 (13...c5 14.dc5 dc5 15.0-0+=) 14.a5 (14.g4 hg4 15.hg4 Ng4 16.Bg4 Bg4 17.Qe4 Qe4 18.Nce4 f5+=) 14...h4 (14...c5 15.dc5 dc5 16.g4+/-) 15.a6 b6 (15...ba6 16.Ra6 N8d7 17.0-0+/-) 16.Rc1 (16.0-0 Qe6+/-) 16...Rac8+= 17.Ba3 (17.0-0 c5 18.d5 N8d7+=) 17...N8d7 18.Nb3 Nh7 (18...c6 19.0-0+=) 19.Nd5 Qg5 20.Nf4 (20.Bg4 Bg4 21.hg4 Nhf6=) 20...Nhf8 (20...c5 21.bc6 Rc6 22.d5+=) 21.Bb2 (21.0-0 c5 22.bc6 Rc6+/-) 21...Ne6 22.Ne6+/- fe6 23.Bf1 e5= 24.d5 Rf8 25.Rd1 Rf7 26.Rd2 Rcf8 27.Bc1 Bh6 28.Re2 Nf6 29.Kd2 Nh5 30.Kc3 Bg7 31.Kb4 Kh8 32.Bd2 Bc8 33.Be1 Qe7 34.Ka4 Bh6 (35.Ka3=+) ½-½. Seifert,Henryk - Chalupnik,Marcin, Poland-chT2 Wysowa, 2003.

11.b5 Nf8 12.0-0 Bf5 13.Rac1 h5 14.Qb3 Ne6 15.c5 dc5 16.Ba3 Qd8 17.dc5 Nf4 18.Bc4 Be6 19.Rcd1 Ng4 20.ef4 Qh4 21.h3 Nf2 22.Rf2 e3 23.Re2 ed2 24.Rdd2 Qf4 25.Ne4 Bc4 26.Qc4 Be5 27.g3 Qf3 28.Qb3 Bd4 29.Rd4 Qe2 30.Nf6 Kh8 31.Ne8 Qe1 32.Kg2 Re8 33.Rd1 Re2 34.Kf3 Qf2 0–1. Eising – Kurz, BL 1987.

11.g4 a5 12.g5 ab4 13.gf6 Nf6+/-.

11.g4+/- h6 12.h4 c6 13.g5+/- hg5 14.hg5 Nh7 15.Qe4 Ng5 16.Qh4 (16.Qe7 Re7 17.f4 Nh7+/-) 16...Nf8 (16...Nb6!?+=) 17.0-0-0 a5 18.b5 Bf5 (18...Bf6 19.Qh2 Bg7 20.d5 cb5 21.Nce4 Bb2 22.Kb2 Qe5 23.Qe5 Re5 24.Nd6+-) 19.Rdg1 Ngh7 (19...f6!?+/-) 20.Bf3 Qc7 (20...Qh4 21.Rh4 Rac8 22.Nde4+-) 21.d5 a4 (21...Bd7 22.dc6 bc6 23.Nce4+-) 22.dc6 (22.bc6?! bc6 23.Nce4 Be4 24.Be4 Bb2 25.Kb2 Rab8 26.Kc2 c5+/-) 22...Qa5 (22...a3 23.Ba1 bc6 24.Bc6+-) 23.Ncb1 (23.Nce4!? Re4 24.Ne4 Bb2 25.Kb2 a3 26.Kc1 bc6 27.Nf6 Kg7 28.Nh5 Kg8+-) 23...Bb2 24.Kb2 a3 25.Ka1 d5 (25...Qb4 26.Qd4 b6+-) 26.cb7 Rad8 27.Nb3 Qc7 28.Bd5 Rd5 29.cd5 Re4 (29...Be4 30.Rh2+-) 30.Qh2 Qb7 31.Qd6 (better is 31.Nc3 Qc8 32.Ne4 Be4+-) 31...Nd7 (31...Qb5 32.Na3 Qe2 33.Nd4 Qf2 34.Nac2+-) 32.Qa3 (32.Nc3 Qc8 33.Ne4 Be4+-) 32...Nhf6 (32...Qb5 33.Nc3 Qb4 34.Qb2+-) 33.Nc3 Re8 (33...Re5 34.Nd4 Be4 35.Ne4 Re4 36.f3+-) 34.Nd4 Be4 1–0. Markos,J (2585) – Jacko,V2 (2285), SVK, Extraliga, 2014.

11.g4 h6 12.h4 c6 13.g5 hg5 14.hg5 Nh7 15.Nce4 d5 16.cd5 cd5 17.Nc3 Ng5?? (better 17...Nb6+/-) 18.Nd5+- Qd6 (18...Qd8 19.Nc7 Nf6 20.Rc1+-) 19.Nc7 Nf6 20.Ne8 (better 20.Na8!? Bf5 21.Qc5 Qc5 22.bc5 Ra8+-) 20...Ne8 21.Qc5 Qd8 22.0-0-0 (22.a3!? Be6+-) 22...Be6? (22...Bf5 23.Nc4 Rc8 24.Qa7 Nd6=) 23.Kb1 Rc8 24.Qa7 (better 24.Qa5+-) 24...Ra8+/- 25.Qb7 Ba2 26.Kc1 (better 26.Kc2 Nd6 27.Qg2 Qc8 28.Bc3+=) 26...Rc8 27.Bc3 Rc3 (27...Bd5 28.Qa6 Bh1 29.Rh1 Rc3 30.Kd1-/+) 28.Kb2=+ Rc7 29.Qg2? (29.Qb5 Bd5 30.Rh4-/+) 29...Be6 (29...Qd6 30.Qa8 Qb4 31.Ka1 Bd5 32.Qe8 Bf8 33.Rh8 Kh8 34.Rh1 Kg8 35.Rh8 Kh8 36.Qe5 Kg8 37.Qg7 Kg7 38.Nb3 Qa3 39.Kb1 Qb3 40.Ka1 Rc1) 30.Rc1?? (better 30.Nb3-/+) 30...Ra7 (30...Bd4 31.Kb1 Bf5 32.Ka2 Rc1 33.Rc1 Be3 34.Rd1 Bd2 35.Qc6-+) 31.Ra1?? (better 31.Bc4=) 31...Ra1 (31...Bd4 32.ed4 Qd4 33.Kc2 Rc7 34.Nc4 Bc4 35.Rh8 Kg7 36.Rh7 Nh7 37.Qg6 fg6 38.Ra5 Bd3 39.Kb3 Qc3 40.Ka4 Bc2 41.Kb5 Qc6) 32.Ra1 Nh7?? (32...Bd4 33.ed4 Qd4 34.Kc2 Bf5 (34...Qa1?! 35.Qg5 Bf5 36.Kb3-/+) 35.Kb3 Qd2-+ (35...Qa1?! 36.Qg5 Nf6 37.Bf3-/+)) 33.Ra8 Qe7 34.Qc6 Qb4 (34...Bd7 35.Qc5 Qh4 36.Bb5=+) 35.Kc2 Nhf6 36.Re8 Ne8 37.Qe8 Kh7 38.Qc6 Bh6 (38...Qa5 39.Kd1+/-) 39.Bd3 Kg7 (better 39...Qa3+/-) 40.Nc4 (40.d5 Bh3+-) 40...Bc4? (40...Qe1 41.Qg2+=) 41.Qc4 (41.Bc4 Qe7+-) 41...Qc4? (better 41...Qe1!? 42.Kb3 Qf2+=) 42.Bc4+- Bg5 43.Kd3 Bd8 (43...Bh4 44.Ke2+-) 44.e4 Kf6 (44...f6 45.Ke3+-) 45.f4 Ke7 46.e5 f6 47.Ke4 fe5 48.fe5 (48.Ke5?! Bc7 49.Ke4 Kf6+/-) 48...Bb6 49.Be2 Bc7 50.Bg4 Bb6 51.Kd5 Bc7 52.Kc6 Bd8?? (52...Kd8+-) 53.d5 Ba5 (53...Ke8 54.d6 Be7 55.Kc7 Bd8 56.Kc8+-) 54.d6 (54.d6 Ke8 55.e6+-) 1-0. Eggplant (2325) - ASLAN07 (1900), Rated Blitz game, lichess.org, 2014. (=1.e3 E61: King's Indian: Early deviations for White, including Smyslov System 1...g6 2.d4 Bg7 3.c4 d6 4.Nc3 Nf6 5.Nf3 0-0 6.b4 Nbd7 7.Bb2)

11.g4+/- h6 12.h4 g5 13.hg5 hg5 14.Qa4+/-.

11.h3 a5!? 12.ba5 Ra5=.

11.h3 h5 12.g4+= hg4 13.hg4 g5 14.0-0-0 c6 15.a3 a6 16.Rdg1 b5 (better is 16...a5+=) 17.Rh5 (better is 17.f3 ef3 18.Bf3+/-) 17...Nh5=+ 18.gh5 f5 19.cb5 ab5 20.Kb1 (20.d5 Bb7 21.dc6 Bc6 22.Qb3 Kh7 23.Bb5 Rac8 24.Bc6 Rc6=+) 20...Nb6 21.Bc1? d5 22.f3 Nc4 23.fe4 fe4 24.Nc4 bc4 25.Qd1 c5?? 26.Nd5+- Qd8 27.Bc4 Be6 28.dc5 Kh7 29.Qb3 Bd5 30.Bd5 Qf6 31.Bb2 Qb2 32.Qb2 Bb2 33.Ba8 Ba3 34.Kc2 Bb4. ferminkatcho (1775) – orezavatko (1885), kurnik, 2011.

9.0-0 a5!? 10.a3 ab4 11.ab4 Ra1 12.Qa1 Re8+=.

9.0-0 e4 10.Nd2 Re8 11.Qb3 Nf8 12.Rfc1 h5 13.Kf1 Bf5 14.a4 h4 15.Nd5 Nd5 16.cd5 Nh7 17.h3 Nf6 18.Ke1 g5 19.Rc3 g4 20.hg4 Bg4 21.Rac1 Rac8 22.Bg4 Ng4 23.Qc2 Bd4 24.ed4 e3 25.Re3 Ne3 26.fe3 Qe3 27.Kf1 Qe2 28.Kg1 h3 29.Nf3 hg2 30.Qf5 Qb2 31.Qg5 Kf8 32.Qh6 Kg8 ½–½. Pupols,Viktors (2330) – Whitehead,Paul A (2260), Golden Gate masters op, 1977.

9.0-0 e4 10.Nd2 Re8 11.b5 h5 12.Qc2 h4 13.Rae1 h3 14.g3 c5 15.bc6 bc6 16.Ba3 Nf8 17.f3 ef3 18.Bf3 Bb7 19.Qa4 c5 20.dc5 Bf3 21.Nf3 dc5 22.e4 Ng4 23.Nd5 Qd6 24.Qc2 Ne6 25.Bb2 Nd4 26.Qd2 Rab8 27.Bc3 Nf3 28.Rf3 Ne5 29.Rff1 Nc4 30.Qc1 Ne5 31.Qg5 Re6 32.Rd1 Rbe8 33.Qh4 Qc6 34.Qh3 c4 35.Kh1 Qc8 36.Qh4 Qc6 37.Rf4 Qb7 38.Rdf1 f5 39.Kg1? fe4 40.Nf6 Bf6 41.Rf6 Rf6 42.Rf6?? Qb1 43.Kg2 Qc2 44.Kh3 Qc3 45.Qe4 Qd3 46.Rg6 Ng6 47.Qe8 Kg7 48.Qa4 Qd4 49.Qb4 Ne5 50.Qe7 Kg6 51.Qe6 Kg7 52.Qe7 Nf7 53.Qb4 Qe4 54.Qc3 Kg6 55.g4 Qd3 (55...Qd3 56.Qd3 cd3-+) 0–1. Ostl,Andreas – Keitlinghaus,Ludger, Bundesliga, 1987.

9.0-0 e4 10.Nd2 Re8 11.Qc2 h5 12.Rac1 c6 13.b5 c5 14.Nb3 b6 15.Rfd1 Nf8 16.Nd5 Nd5 17.cd5 Bf5 18.dc5 dc5 19.Bg7 Kg7 20.Nd2 Nd7 21.Nc4 Red8 22.Qc3 Qf6 23.f3 Qc3= 24.Rc3 Nf6 25.d6 Ne8 26.fe4 Be4 27.Bf3 f5 28.Be4 fe4 29.a4 Rd7= 30.Rc2 Kf6 31.Rd5+= Rad8 32.Rf2 Kg7 33.a5 ba5 34.Rc2 Kf6 35.h4 a4 ½–½. Vrhovnik,D (2060) – Iudicello,G (2180), 11th European Senior, 2011.

9.0-0 e4 10.Nd2 Re8 11.Re1 c6 12.Qb3 Nb6 13.c5 Nbd5 14.Nc4 dc5 15.bc5 Nc3 16.Qc3 Be6 17.Nd6 Red8 18.Bc4 Bd5 19.Qb3 Rd7 20.Ba3 (20.Bd5 Nd5 21.f3 ef3+=) 20...Bc4 21.Nc4 Ne8 22.Rab1 Qd8 (22...Nf6 23.Nd6=) 23.Qc2 Qe7 24.Rb3 Rb8 25.Reb1 Qe6 (25...Nf6!?+/-) 26.Na5+- Nf6 27.Nb7 Bf8 28.Na5 Rbd8 29.Nc4 Rd5 30.Ne5 (30.h3!? Rg5 31.Kf1 Kg7+-) 30...Nd7+/- 31.Nc4 Rg5?? (31...Nf6 32.h3 Rg5+-) 32.Nd2 (32.Rb7!?+-) 32...Nf6+/- 33.Rb8?? (better 33.f3 ef3 34.Nf3+/-) 33...Qh3-+ 34.g3 Rb8 35.Rb8 h5?? (better 35...Ng4 36.Nf1 Rf5-+) 36.Ne4+- Qf5 (36...Ng4 37.f4 Rd5+-) 37.Nf6 Qf6 38.Qe4 Kg7 (38...Qe6 39.Qe6 fe6+-) 39.Bb2 Rd5 40.Qf4 (better 40.Qe8 Qe7 41.Qc6 Qe4+-) 40...Qe7 (40...Qf4 41.gf4 Be7+-) 41.e4 Rd8 (41...g5 42.Qf3 g4+-) 42.d5 f6 43.Bf6! Qf6 44.Qf6 Kf6 45.Rd8 Bc5 (45...Be7 46.Rd7 Bc5 47.dc6+-) 46.dc6 (46.dc6 Bb6 47.Rd6 Ke7 48.Rg6+-) 1-0. Porrasmaa,T (2015) - Paasikangas,J (2210), MatSK Weekender, 2019. (=1.c4 e5 2.Nc3 d6 3.Nf3 Nf6 4.e3 g6 5.d4 Nbd7 6.b4 Bg7 7.Bb2 0-0 8.Be2)

9.0-0 Re8 10.Nb5+/- e4 11.Nc7 ef3 12.Bf3 (< 12.Na8 fe2 13.Qe2 Nf8–/+; 12.Ne8?! fe2 13.Nf6 Nf6 14.Qe2 d5=) 12...Nb6 13.Ne8 Qe8 14.Qb3 Ne4 15.Rfd1 d5 (15...Bd7 16.c5 Ba4 17.Qd3 Bd1 18.Rd1+/-) 16.cd5 f5 (16...Bf5 17.Rac1+/-) 17.Rac1 Qf7 18.Rc5 Bd7 19.Rc7 (19.b5 Nc5 20.dc5 Bb2 21.Qb2 Nc4+-) 19...Rb8 20.Be2 (20.Qa3 a6 21.Be2 Nd5+/-) 20...Nd6 (20...Bf8!? 21.b5 Bd6+=) 21.b5 Ne8 22.Rc5 Bf8 23.a4 Nc8 24.f3 b6 25.Rc2+- Ncd6 26.Ba3 Rd8 27.Rf1 Qe7 28.Re1 Qh4 29.g3 Qh6 30.Bf1 g5 31.Bb2 Qg6 32.e4 fe4 33.fe4 Ne4 34.d6 Be6 35.Bc4 Bc4 36.Qc4 Kg7 37.Re4! Nd6 38.Qc7 Kg8 39.Qd8 Qe4 40.Qg5 (40.Qg5 Bg7 41.d5+-) 1–0. Dreev,Alexey – Bronstein,David I, Reykjavik, 1990.

9.0-0 Re8 10.Qc2 e4 11.Nd2 c6 12.Ba3 Qe6 13.Rab1 d5 (better is 13...a5!?=) 14.cd5+/- Nd5 15.Nde4 Nc3 16.Nc3 f5 17.Bc4 (17.Bc4 Qc4 18.Rfe1-+) 1–0. Kessler,Marcel (1745) – Schippa,Robert, Niedersachsen–chT U16, 2008. (=1.d4 Nf6 2.Nf3 g6 3.e3 d6 4.c4 Bg7 5.Nc3 0-0 6.Be2 Nbd7 7.b4 e5 8.Bb2 Qe7)

9.Qb3 c6 10.a4 ed4 11.ed4 Nh5 12.0-0 Nf4 13.Rfe1 Ne2 14.Re2 Qd8 15.h3 Nf6 16.d5 Re8 17.Re8 Qe8 18.a5 Bd7 19.Re1 Qf8 20.Ne4 Ne4 21.Re4 cd5 22.cd5 Rc8 23.Bg7 Qg7 24.Qe3 Qf6 5.Kh2 Rc3 26.Qh6 Rd3 27.Rf4 Qg7 28.Qh4 f6 29.Rf6 Rd5 30.Qe4 Qf6 31.Qd5+- Kf8 32.Qb7 Qf4 33.Kh1 Ke7 34.Qa7 Qb4 35.Qe3 Kd8 36.a6 Qa5 37.Qg5 Qg5 38.Ng5 h5 39.a7 Bc6 40.Ne6 Kd7 41.Nf8 Kc7 42.Ng6 Kb7 43.Ne7 Bd7 44.Nd5 Bf5 45.Nc7! Ka7 46.Nb5 Kb6 47.Nd6 Bg6 48.Nc4 Kc5 49.Nd2 Kd4 50.Nf3 Ke4 51.Kh2 Kf4 52.Nh4 Be8 53.g3 Ke4 54.Kg2 Bd7 55.f3 Ke3 56.g4 hg4 57.hg4 Kf4 58.Ng6 Kg5 59.Ne5 Ba4 60.Kg3 Bc2 61.f4 Kf6 62.Nf3 Bb1 63.Nd4 Kg6 64.Kh4 Bd3 65.g5 Bc4 66.Kg4 Ba2 67.f5 Kf7 68.Kf4 Kg7 69.Ke5 Kf7 70.Ne6 1–0. Kushch,Nikolai (2375) – Kozakov,Mikhail (2420), UKR ol Alushta, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.Nc3 Qe7)

9.0-0 a5 10.a3+=.

9.0-0 a5 10.b5 ed4 11.ed4 Nf8 12.h3 Ne6 13.Qd2 Nh5 14.Nd5 c6 15.Ne3 Nhf4 16.Rae1 Ne2 17.Re2 Nf4 18.Ree1 Qf6?? (better is 18...cb5 19.cb5 Be6=) 19.Bc1?? (19.Nd5 Nh3 20.gh3 cd5 21.Re8 Bf8 22.Qh6+-) 19...Nh3!–/+ 20.gh3 Qf3 21.Ng2 Bh3 (22.Ne3 Bf1 23.Kf1 cb5 24.cb5 Qh1 25.Ke2 Qh5 26.Kf1 Qb5 27.Kg2 Qg5 28.Kf1 b5-+). Donnelly,John – Heisman,Dan, Lesson Game no Clock, 2002.

9.0-0 b6 10.d5 Bb7 11.Qc2 h6 12.Rfd1 Nh7 13.Nd2 f5 14.a4 a5 15.ba5 Ra5 16.Nb3 Ra8 17.a5 Rf8 18.ab6 cb6 19.e4 Rf7 20.Ra8 Qa8 21.ef5 gf5 (21...Rf5? 22.Bg4 Qf8 23.Bf5 gf5 24.Ra1+-) 22.Nb5 Rf6 23.f4 Nhf8 24.Bd3 Ng6 25.Bf5 (25.Bf5 Ndf8 26.fe5 Ne5 27.N3d4+-) 1–0. pcmvr – mgilbert, net–chess.com, 2020.

9.0-0 b6 10.de5 de5 11.e4 (11.b5 a6+=) 11...Bb7 12.Qc2 c5 13.b5 Qe7 (13...a6 14.Rfd1+=) 14.a4 (14.Nd5 Qd6+=) 14...Nh5 (14...Red8 15.Nd5 Qd6 16.Rfd1+=) 15.a5 Ndf6 (15...Nf4 16.Nd5 Ne2 17.Qe2+=) 16.a6 (16.Nd5 Nd5 17.cd5 Nf4+-) 16...Bc8 17.g3 (17.Rfd1 Nf4+-) 17...Bg4+= 18.Kg2 Rad8 19.Rfd1 Qe6 (19...h6 20.Nd5 Nd5 21.cd5+=) 20.Ng5 (20.Ng5 Qe7 21.Bg4 Ng4 22.Nf3+-) 1–0. Borrmann – Silverman, corr, 1987.

9.0-0 c6 10.c5 ed4 11.Nd4 (11.ed4 dc5 12.bc5 b5=) 11...dc5=+ 12.bc5 Nc5 13.Bf3 (13.Qc2 Bg4=+) 13...Ne6–/+ 14.Nc6 (14.Nb3 Qe7–/+) 14...bc6 15.Bc6 Ba6 16.Re1 Rb8 17.Be8 Ne8 18.Qd8 Nd8 19.Red1 Rb2 20.Rd8 Kf8 21.Ne4 Rb4 22.Rad1 Re4 23.g3 Be2 24.R1d7 Bf3 25.Ra7 Rc4 26.h4 Rc1 27.Kh2 Rh1# 0–1. Hasler,Ulrich (2045) – Lorenz,Rudolf (2360), corr ICCF–Cup11 V95, 1997.

9.0-0 c6 10.de5 de5 11.Qc2 Qc7 12.e4 a5 13.a3 b6 14.Rfd1 Bb7 (14...ab4 15.ab4 Ra1 16.Ra1+=) 15.h3 (15.Rd3 ab4 16.ab4 Ra1 17.Ba1 Bf8+=) 15...c5 (15...Bf8 16.b5+=) 16.Nb5 Qc6 17.Nd6 Red8 (17...Re7 18.b5 Qc7 19.Qd3+=) 18.b5 (18.Ne5 Ne5 19.b5 Qc7 20.Be5 Ne4 21.Bg7 Rd6 22.Rd6 Nd6+=) 18...Qc7 19.Nb7 (19.Ng5 a4+/-) 19...Qb7+= 20.Ne5 (20.Rd3 Qe4 (< 20...Ne4 21.Rad1+/-) 21.Rad1 Re8=+) 20...Ne5 21.Be5 Qe4 22.Qb2 Rd1 23.Rd1 (23.Bd1?? Qe1 24.Kh2 Ng4 25.Bg4 Qe5 (< 25...Be5 26.g3 Qa1 27.Qa1 Ba1 28.a4-+) 26.Qe5 Be5 27.g3 Ba1-+) 23...Ne8? (better is 23...Qf5+=) 24.Bg7+- Ng7 25.Bf3 Qe8 26.Ba8 Qa8 27.Qf6 Qb7 (27...Ne6+-) 28.Rd8 Ne8 29.Re8# 1–0. Fredek (2090) – Guus22, Freundschaftspartie, 5m + 0s, 2005.

9.0-0 c6 10.de5 de5 11.e4 Qc7 (11...Qb6 12.a3+=) 12.Qc2 Nf8 (12...a5 13.a3+=) 13.Rfd1 Bg4 14.Ng5 (14.b5 Ne6=) 14...Bc8 (14...Be2 15.Qe2 Rad8 16.a3+=) 15.a4 (15.c5 Ne6 16.Ne6 Be6+=) 15...h6 (15...Ne6 16.Ne6 Be6 17.a5+=) 16.Nf3 Bg4 17.Ne1 (17.a5 Ne6+=) 17...Be2 18.Ne2 (18.Qe2 Ne6+=) 18...Ne6 (18...c5 19.b5=) 19.c5 (19.Nf3 Nd7+=) 19...Rad8 (19...a5 20.Qc4=) 20.Nf3+= Nh5 21.Rd8 (21.a5 Nhf4+=) 21...Rd8= 22.Rd1 (22.a5 Nhf4+=) 22...Rd1 23.Qd1 a5 24.Ba3 Nf6 25.Qc2 Nd7 26.Nc1 ab4 27.Bb4 Nd4 28.Qc4 Nf3=+ 29.gf3 Qd8 30.a5 Nf8 31.Nd3 Qc8 32.Kf1 Qe6 33.Qe6= Ne6 34.Bc3 f6 35.Bd2 h5 36.f4 Bh6=+ 37.Ke1 Bf4–/+ 38.Bf4 ef4 39.h4 Kg7 40.Kd2 g5-+ 41.Ke1 gh4 42.Kf1 Kg6 43.Kg2 Kg5 44.f3 Nd4 45.Nb4 Nb3?? 46.Nc6=+ Nc5 47.Nd8+/- Kg6 48.Nb7 Na6 49.Nd6 Kg5 50.Kh3 Nc7 51.Nf5 Kg6? 52.Nh4 Kg5+/- 53.Nf5 Na6 54.Ne7 Nc7 55.Nd5 Na6 56.Kg2 Kg6 57.Nf4 Kg5 58.Nd5 Kg6 59.Kh3 Kg5 60.f4 Kg6 61.Kh4 (61.Kh4 Kf7 62.Kh5+-) 1–0. Labahn,Wolfgang – Dickhoff,Ronald, Berlin Summer op, 1990.

9.0-0 Qe7 10.a4 (10.Nb5 Qd8+=) 10...Nf8 (10...a5 11.b5=) 11.b5 e4 (11...ed4 12.Nd4 a6 13.Nd5 Nd5 14.cd5 ab5 15.ab5 Ra1 16.Qa1+=) 12.Nd2 h5 (12...N8d7 13.a5+=) 13.a5 Bf5 (13...N8d7 14.f3 ef3 15.Rf3+=) 14.a6+/- b6 15.Ba3 (15.Qc2 h4+/-) 15...Ne6 (15...Rac8 16.Qa4+=) 16.Nd5+/- Qd7 17.Nf6 Bf6 18.f3 (18.Bb2 Ng5+/-) 18...Bg5 (18...Nd4 19.ed4 Bd4 20.Kh1 e3+=) 19.f4+= Bf6 20.Nb3 Rad8 21.Rc1 c5 22.bc6 Qc6= 23.Nd2 Qd7 24.Nb1 Be7 25.Nc3+= Nc7 26.Qb3 Rc8 27.Rfd1 Qe6 28.Nd5 Bf8 29.Nb4 Ra8 30.Rd2 Rec8 31.Rdc2 Bg4 32.Bg4 Qg4 33.Nd5 Qe6 34.f5 gf5= 35.Nf4 Qh6 36.Rf2 Ne8 37.Rcf1 Ng7 38.Ne2 h4 39.g4 Qg5=+ 40.Kh1 fg4 41.Rf7 g3 42.hg3 hg3 43.Kg2+= Qg4 44.Qa2 Rd8 45.R7f4 Qg6 46.Rf6 Qg5 47.Bd6 Rd6 48.Rd6 Nf5 49.c5 Kh8–/+ 50.Qf7? Ne3-+ 51.Kg1 Bd6 52.cd6 Nf1 53.Nf4 Rg8 54.d7 Nh2 55.d8Q Nf3 56.Kg2 Nh4 (57.Kg1 Rd8 (57...Qd8 58.Qh5 Kg7 59.Ne6 Kf6 60.Nd8 Nf3 61.Kg2 Rd8 62.Qh6 Ke7 63.Qh7 Kd6 64.Qa7 Nh4 65.Kg3 Nf5 66.Kf2+-) 58.Qh5 Qh5 59.Nh5 g2-+; 56...Qd8 57.Qh5 Kg7 58.Ne6 Kf6 59.Nd8 Rd8 60.Qh6 Ke7 61.Qh7 Kd6 62.Qa7 Nh4 63.Kg3 Nf5 64.Kf2 e3 65.Ke1+-) 0–1. Miltner,A – Krauss,Werner, BdF, 1994.

9.a3 c6 10.0-0+= e4 (10...ed4 11.Nd4 Ne5 12.Qd2+=) 11.Nd2 Nf8 (11...Qe7 12.Qc2+=) 12.b5 h5 (12...a6 13.Qa4 cb5 14.cb5+=) 13.a4 (13.Rb1 h4+=) 13...Bf5 (13...c5 14.d5+=) 14.a5 c5 (14...a6 15.b6+=) 15.Nb3+- Ne6 (15...N8d7 16.a6 b6 17.Qc2+-) 16.dc5 (16.d5 Nc7+=) 16...Nc5 17.Nc5 (17.a6 ba6 18.Nc5 dc5 19.Ra6 Qd1 20.Rd1 Nh7+-) 17...dc5+- 18.Qd8 (18.Qc2!?+-) 18...Red8 (18...Rad8 19.Rfd1=) 19.Rfd1 Be6 (19...Bg4 20.Bg4 Ng4 21.h3+=) 20.Rab1 (20.Na4 Nd7+=) 20...Rac8 (20...Kf8 21.Na4 Nd7 22.Bg7 Kg7 23.Nc3=) 21.h3 (21.f3 Bf5 22.Ra1 Kf8=) 21...h4 (21...g5 22.Na4 Nd7 23.Rd6 Bb2 24.Rb2=) 22.Ba1 (22.Na4 Rd1 23.Rd1 Nd7=) 22...Kf8 (22...g5 23.Na4 Rd1 24.Rd1=) 23.Rbc1 (23.Na4 Rd1 24.Rd1 Nd7+=) 23...Kg8 (23...g5 24.Na4 Rd1 25.Rd1=) 24.Kf1 (24.Na4 Nd7+=) 24...Bf5 (24...a6 25.Rd8 Rd8 26.Na4=) 25.Ke1 ½–½. Rubio Mejia,LI (2350) – Elguezabal Varela,D (2375), Madrid ESP, Division de Honor, 2010. (=1.d4 d6 2.Nf3 g6 3.c4 Bg7 4.Nc3 e5 5.e3 Nd7 6.Be2 Ngf6 7.b4 0-0 8.Bb2 Re8)

9.a3 ed4 10.Nd4 Ne5 11.0-0=.

9.a4 a5 10.ba5 ed4 11.Nd4 Nc5 12.0-0 Ra5 13.Qc2 (13.Nd5 Qd7=) 13...c6 14.h3 Qe7 15.Bf3 Bd7 16.Rfe1 h5 17.Ba3 Nh7 18.Bb4 Ra6 19.Be2 Ng5 20.Kh2 (20.a5 b6=) 20...Qe5 21.Kh1 (21.Kg1 Qf6=+) 21...Nce4 (21...Nge4 22.Bf1 Nc3 23.Bc3 Ne4-/+) 22.Bd3= Nc3 23.f4 (23.Bc3!? Ne4 24.Bb2=) 23...Qe7=+ 24.Bc3 Ne4 25.Bb2 Nc5 26.Bf1 Rea8 27.a5 Qe4 (27...Ra5?! 28.Nc6 Bc6 29.Bg7=+) 28.Qe4 Ne4 29.Reb1 Nd2 30.Rd1 Nf1 31.Rf1 c5 32.Nb5 Bb2 33.Rab1 Bg7 34.Nc7 Bc6 35.Na8 Ra8 36.Rf2 Ra5 0-1. Izoitko,A (1980) - Zhao,Yuanhe (2455), St Petersburg RUS, 2019.

9.a4 a5 10.b5 ed4 11.ed4 Nb6 12.0-0 Be6 13.Nd2 c6 14.Re1 h5 (14...Rc8 15.Rc1=) 15.h3 Nh7 16.Nce4 (16.c5 Nd5 17.Nde4 dc5 18.Nc5 Qh4 19.Nd5 Bd5 20.bc6 bc6=) 16...Ng5 17.Ng5 Qg5 18.Ne4 Qd8 19.c5 dc5 20.Nc5 Qg5 21.Qc1 (21.Bf3 Bd5 22.Re8 Re8 23.Nb7 cb5=) 21...Qc1= 22.Rac1 Bc4 23.Kf1 (23.Bf3!? cb5 24.Bb7 Re1 25.Re1=) 23...Re2 24.Re2 cb5 (worse 24...Be2 25.Ke2 Rb8 26.Kf3=) 25.ab5 Bb5 (25...Be2?! 26.Ke2 Ra7 27.Kd3=) 26.Nb7 Nd5 27.Nd6 Be2 28.Ke2 Nf4 29.Ke3 Ng2 30.Ke4 f5 31.Kf3 Nh4 32.Kg3 f4! 33.Kh2 (33.Kf4 Bh6 Double attack) 33...Bd4! 34.Bd4 Nf3 35.Kg2 Nd4 36.Rc4 Ne6 (36...Nb3!? 37.Ra4-+) 37.Re4 Nc5 Black plans a4 38.Rf4 a4 39.Rc4 a3 40.Rc5 a2 41.Rc1 a1Q 42.Ra1 Ra1 43.Ne4 Kf7 44.h4 Ke6 45.f3 Ke5 46.Kg3 Rg1 47.Kf2 Ra1 48.Ng5?? (48.Kg3 Re1 49.Nf2-+) 48...Ra4 (better 48...Rh1!? 49.Nh7 Rh4 50.Nf8-+) 49.Kg3 Kd4 50.Kf4 Kd3 51.Ne4 Ke2 52.Kg3 Ke3 53.Nf2 (53.Nf6 Ra5 54.Nh7 Ra1-+) 53...Rd4 (better 53...g5!? 54.Nd1 Kd2 55.hg5 Kd1 56.f4-+) 54.Nh3 Rd1 55.Nf4 (55.Kg2-+) 55...Rg1 56.Ng2 Ke2 57.f4 (57.Kh2 Kf2 58.Nf4-+) 57…Kf1 0-1. Wang Yue (2665) - Narayanan,SL (2635), PRO League Group Stage, 2020. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.e3 0-0 5.Be2 d6 6.Nc3 Nbd7 7.b4 e5 8.Bb2 Re8 9.a4)

9.a4 a5 10.b5 Qe7 11.0-0 b6 12.Qc2 e4 13.Nd2 Nf8 14.Rac1 h5?! 15.Nd1 Bf5 16.c5 d5 17.Qb3 Bd7 18.Ba3 Qe6 19.c6 -+ Bc8 20.Nc3 N8h7 21.Nc4! dc4 22.Bc4 Qg4 23.Bf7 Kh8 24.Be8 Ne8 25.Be7 Be6 26.d5 Bg8 27.f3 ef3 28.Rf3 Bf6 29.Bf6 Nef6 30.Qb2! Qb4 31.Qa1 Qe7 32.d6! cd6 33.e4 Re8 34.Nd5 Bd5 35.ed5 Kg8 36.Rcf1 Ng4 37.Rf7 1–0. Epelman – Gurevich, corr 1974.

9.a4 a6 10.a5 h5 (10...ed4 11.Qd4 Ne4 12.Qd3=) 11.Qc2 Nf8 12.de5 de5 13.Rd1 Qe7 14.Ba3 e4 15.Nd4 Qe5 16.h3 h4 17.Bb2 Qg5 18.Bf1 c5 19.bc5 N8d7 20.Nb3 Ne5 21.Nd5 (21.Ne4 Ne4 22.Qe4 Bf5 23.Qb7 Rab8 24.Qa6 Rb3-+) 21...Nd3 22.Bd3 Nd5 (22...ed3 23.Qc3 Nh5 24.Qg7 Ng7 25.Nf6 Kh8 26.Ne8 Qg2 27.Bg7 Kg8 28.Kd2 Qf2 29.Kc3 Bh3 30.Nc7–/+) 23.cd5 ed3 24.Rd3 Qg2 25.Bg7? (better is 25.Rf1 Bf5 26.Bd4 Qd5 27.Kd1-+) 25...Qh1 26.Kd2 Kg7 27.Qc3 Kg8 28.c6 (28.Qf6 Bf5 (28...Qh3?! 29.Rd4 Qf5 30.Qf5 Bf5 31.Rh4-+) 29.Rd4 Re4-+) 28...Qf3 (28...bc6 29.d6 Bf5 30.Rd4-+) 29.Nc5 (29.d6 Qf2 30.Kc1 bc6-+) 29...bc6 30.e4 (30.d6 Qf2 31.Kc1 Qf1 32.Rd1 Qh3-+) 30...Qf2 31.Kc1 cd5 32.Rd5 Be6 33.Rd4 (33.Ne6 Re6 34.e5 Qf1 35.Rd1 Qf4 36.Rd2 Re5-+) 33...Rac8 34.Kd1 Qd4! 35.Qd4 Red8 36.Ne6 Rd4 37.Nd4 0–1. Laske,Erich (2120) – Weindl,Alfred (2335), Wangs Pizol op, 1996. (=1.Nf3 Nf6 2.c4 g6 3.d4 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 Nbd7 7.Be2 e5 8.Nc3 Re8 9.a4)

9.a4 c5 10.bc5 ed4 11.ed4 dc5 12.0-0=.

9.a4 c6 10.a5 Qc7 11.b5 a6 12.b6! Qd8 13.d5 c5 14.Qb3 h6 (14...e4 15.Nd2 Nf8) 15.h3 Nh7 16.g4! f5 17.gf5 gf5 18.0-0-0 Kh8 19.Rdg1 Rg8 20.Qc2 Ndf8 21.h4 Bf6 22.Rg8 Kg8 23.Rg1 Kh8 24.Bd3! Qd7 (24...e4 25.Be4! fe4 26.Ne4 Bf5 27.Nf6!) 25.Nh2! Bh4 26.f4 Bf6 27.Nf3 ef4 (27...e4 28.Be4! fe4 29.Ne4 Qf7 30.Qg2 Nd7 31.Nd6 Qf8 32.Nh4!) 28.ef4 Qe8 29.Qg2 Qf7 30.Nh4! Bd4 31.Ne2 Bb2 32.Kb2 Bd7 33.Bf5! Bf5 (33...Qf6 34.Kb3; 33...Re8 34.Bd7 Nd7 35.Ng6) 34.Nf5 Nd7 35.Nd6! Qe7 (35...Qf6 36.Kb3) 36.Nf5 Qf7 37.Kb3 Re8 38.Nd6 Re3 39.Nc3 Qf8 40.Qg6 Re7 41.Nf5 1–0 (41.– Rf7 42.Nh6 Rg7 43.Qg7 Qg7 44.Rg7 Kg7 45.Nf5 Kf6 46.Nd6 +/-). Sokolski – Pelts, Minsk 1961.

9.a4 ed4 10.ed4 Nf8 (10...a5 11.b5=) 11.0-0= Ne6 12.Qd2 Nh5 (12...d5 13.Rae1=) 13.g3 (13.Rfe1 a5+=) 13...a5= 14.b5 b6 (14...Nf6 15.Rfe1=) 15.Nd5 (15.Rfe1 Nf6+=) 15...Bb7= 16.Rab1 Nf6 17.Nf6 Bf6 (17...Qf6? 18.d5 Qf5 19.Nh4+- (19.de6?! Bf3 20.ef7 Qf7 21.Bf3 Qf3=)) 18.Rbc1 (18.d5 Nc5 19.Bd1 Bb2 20.Qb2 Bc8=) 18...Bg7 (18...Rc8 19.d5 Nc5 20.Rfe1+=) 19.Ba1 (19.Rfe1 Qf6 20.Qc3 Qf5=) 19...Qe7 (19...d5 20.Qd1=) 20.Rfe1 Qf8 (20...d5 21.Ne5=) 21.Rcd1 (21.d5 Nc5 22.Qc2 Bc8=) 21...d5 22.Ne5 Rad8 23.Bf3 Ba8 24.c5 bc5 25.dc5 Nc5+= 26.Qa2 Qd6 27.Nc6? Re1 28.Re1 Bc6 29.Bg7 Kg7 30.bc6 Qc6 31.Rc1 Qf6 32.Rc5 Qf3 33.Rc7 d4 34.Qd2 d3 35.Re7 Qf6 36.Re4 Rd5 37.h4 h5 38.Rf4 Qe5 39.Kg2 Rd8 40.Kf1 Qd5 41.Kg1 Kg8 42.Rf6 Rb8 (42...Rb8 43.Kh2 Rb1-+) 0–1. Koehn,Peter – Naumann,Alexander, Bundesliga, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8 9.a4)

9.a4 ed4 10.Nd4 a5 11.b5 Nc5 12.0-0 h5 13.Nd5 Nd5 14.cd5 Qg5 15.Nf3 Qf5 16.Bg7 Kg7 17.Rc1 Qf6 18.Rc4 Bf5 19.Qa1 Qa1 20.Ra1 Be4 21.Rd1 Kf6 22.Ne1 Re5 23.Bf3 Rae8 24.Rdd4 R8e7 25.Nc2 Kg7 26.Na3 b6 27.Rc3 Rf5 28.Be4 Ne4 29.Rc2 Nf6 30.Kf1 Rd5 31.Rd5 Nd5 32.Rc4 f5 33.Nc2 Re4 34.Nd4 Kf6 35.g3 Re3 36.Rc7 Nc7 37.fe3 Nd5 0–1. Connors – Verber, 1979.

9.a4 Qe7 10.0-0 e4 11.Nd2 h5 12.a5 a6 13.b5 (13.Qc2 Qe6+/-) 13...Nf8 (13...h4 14.f3 ef3 15.Rf3 ab5 16.cb5+=) 14.Qc2 Bf5 15.Nd5 Qd8 16.Rfc1 Ne6 (16...h4!?+=) 17.Nf6 Bf6 18.Nb3 h4 19.ba6 ba6 20.c5 d5 21.c6 Be7 22.Ba3 Bd6 23.Bd6+/- cd6? 24.Nd2 Qg5 25.Kh1 h3+/- 26.g3 Rec8 27.Qd1 Nd8 28.Qf1 Rc6= 29.Rc6 Nc6+= 30.Ba6 Nb4 31.Bb7+/- Ra7 32.Qb5 Nd3 33.Kg1 Qg4 34.Kf1 Bd7 35.Qd5 Rb7?? 36.Qb7+- Qf5 37.Ne4 d5 38.Qd7 Qe4 39.Qh3 Qh1 40.Ke2 Qa1 41.Kd3 Qd1 42.Kc3 Qc1 ½–½. Pagano,N (2005) – Klings,P (2170), Capo d Porto Mannu Palau ITA, 2008.

9.a4 Ng4 10.0-0 ed4 11.ed4 a5+=.

9.a4 Ng4 10.de5 Nde5 11.e4 Nf3 12.gf3 Ne5 13.Rb1 Qg5 14.Bf1 (14.Nd5!? Qg2 15.Rf1–/+) 14...Qf4 15.Be2 c6 16.0-0?? (better is 16.Na2–/+) 16…Ng4!! (16...Ng4 17.Qd6 Qd6 18.fg4 Qb4-+) 0–1. Fournier,Frederic – Olsson Sture, Match SUE–FRA, 1994. (=1.e3 g6 2.d4 Bg7 3.Nf3 d6 4.b4 Nf6 5.Bb2 0-0 6.c4 e5 7.Be2 Nbd7 8.Nc3 Re8 9.a4)

9.a4 Ng4 10.h3 ed4= 11.Nd4 (better is 11.ed4 Ngf6 12.0-0=) 11...Ne3 (better is 11...Nge5!?=) 12.fe3+/- Re3 13.0-0 c5 14.Ndb5 Ne5? (better is 14...cb4 15.Nd5 Bb2 16.Ne3 Ba1 17.Qa1 a6+/-) 15.bc5 Bh3 16.Nd5 (16.gh3 Rg3 17.Kf2 Qh4-+; 16.Nd6 Bg2 17.Rf2 Rh3 18.Kg2 Qh4-+; 16.cd6 Bg2 17.Rf2 Qh4 18.Rg2 Rh3-+) 16...Rg3 17.Nf4 (17.Nd6? Rg2 18.Kh1 Qh4-+; 17.cd6 Rg2 18.Kh1 Qh4-+) 17...Qh4? (17...Qg5!? 18.Qd5 Bd7 19.Qd6 Bc6+/-) 18.Ra3 (18.Qd5 Bc8 19.Nd6 Qe7+-) 18...Ng4 (18...Ra3 19.Na3 Bf5 20.cd6 Ng4 21.Bg4 Bb2 22.Bf5 Ba3+-) 19.Nh3?? (better is 19.Bg4 Ra3 20.Ba3 (20.gh3?! Rg3 21.Ng2 Bb2+/-) 20...Bg4 21.Qd5+- (21.Qd6?! a6 22.c6 b6+=)) 19...Qh3 20.Rf2 Qh2 (20...Qh2 21.Kf1 Qh1#) 0–1. Kleinke,Uwe – Janke,Guenter, corr DDR–ch I749, 1980.

9.Qb3 a5 10.b5 ed4 11.ed4 d5 12.c5 Ne4 13.Qd5 Nc3 14.Bc3 Qe7 15.Ne5 Ne5 (worse is 15...Be5 16.de5 Nc5 17.0-0+=) 16.de5 Be5 17.Qe5 Qe5 18.Be5 Re5 19.Rc1 Bg4 20.f3 Rae8 21.0-0 Re2 22.fg4 Ra2 23.Rf2 Rf2 24.Kf2 a4 25.Ra1 Ra8 26.Ke3 a3 27.Ra2 Kf8 28.Kd4 Ke7 29.Kd5 Ra5 30.g5? (better is 30.Kc4!?–/+) 30…Rb5-+ 0–1. Volkov,Mykyta (2105) – Hendriks,Willy (2445), BL2–West, 2009. (=1.d4 Nf6 2.Nf3 d6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.c4 Nbd7 7.Be2 e5 8.Nc3 Re8)

9.Qb3 c6 10.a4 (10.0-0 ed4 11.Nd4 Nf8=) 10...Nf8 (10...ed4 11.Nd4 a5 12.b5=+) 11.0-0 (11.de5 de5 12.0-0 e4=) 11...e4 (11...ed4 12.Nd4 Ne6 13.Rad1=) 12.Nd2+= d5 13.Rae1 (13.h3 Ne6+=) 13...h5 14.f3 (14.cd5 cd5 15.h3 Bf5+=) 14...ef3= 15.Bf3 Bh6 16.Nd1 (better 16.cd5!? Be3 17.Re3 Re3 18.dc6=) 16...N8h7 (16...Bf5 17.b5=+) 17.cd5 cd5 18.Kh1 (18.Be2 Bg4=+) 18...Ng5 19.Bc1 (19.Be2 Bd7–/+) 19...h4 20.Nc3 (20.e4 de4 21.Ne4 Nge4 22.Bh6 Be6=+) 20...Be6 21.Ne2 (21.Be2 h3 22.g3 Rc8-+) 21...h3-+ 22.Ng3 (22.gh3 Nf3 23.Rf3 Rc8-+) 22...Qd7 (22...Rc8 23.Re2-+) 23.Rf2 Rec8 (23...Rac8 24.Bb2-+) 24.b5 (24.Bb2 Rc7-+) 24...Nfe4 (24...Rc7!? 25.Ba3-+) 25.Be4 de4 26.Qb1 (better 26.Nge4 Bg7 27.Qb1 Ne4 28.Ne4-+) 26...hg2 27.Rg2 Bh3 (better 27...Bd5!? 28.Bb2-+) 28.Rf2 Bg4?? (28...Qd5 29.Ne2 Bf5 30.Qb3 Qb3 31.Nb3-+) 29.Ref1? (better 29.Nge4 Ne4 30.Ne4=) 29...Rc3?? (better 29...Re8–/+) 30.Qa2 (better 30.Nde4 Qd5 31.Rg2 Ne4 32.Ne4+-) 30...Be6-+ (30...Re3?! 31.Nde4 Ne4 32.Be3 Nf2 33.Qf2-+) 31.Qb1 (31.Qb2 Qc7 (31...Re3?! 32.Nc4 Rf3 33.Ne5 Rf2 34.Nd7 Rb2 35.Nf6 Kg7 36.Bb2-+) 32.Qb1 Rc8-+) 31...Re3 32.Nc4 (32.Rf4 Bd5 33.Rh4 Rc3-+) 32...Rg3 (32...Bc4 33.Be3 Bf1 34.Rf1–/+) 33.hg3 (33.Ne5 Qd4 34.Nf7 Bf7 35.hg3-+) 33...Bc4 34.Bg5 (34.Re1 Nf3 35.Rh2 e3 36.Rh6 Ne1 37.Rg6 fg6 38.Qg6 Qg7 39.Qg7 Kg7 40.Be3 Re8-+) 34…Bg5 (34...Bg5 35.Kg1 e3-+) 0–1. Israyelyan,Eduard (1850) – Simonyan,Latush (2105), 2nd Yerevan Open, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8)

9.Qb3 ed4 10.Nd4 a5 11.a3 ab4 12.ab4 (12.Qb4? c5 13.Qb5 cd4 14.ed4 Nh5-+) 12...Ra1 13.Ba1 Ne5 14.0-0 c6 15.Bb2 Bg4 16.f3 Bc8 17.Rd1 Bh6 18.Bc1 Ned7 19.f4 Nf8 20.h3 Ne6 21.Bf3 Qb6 22.Kh1 Nd4 23.Rd4 c5 24.Na4 Qb4 25.Qb4 cb4 26.Rd6 Nd7 27.Nb6 Nb6 28.Rb6 Bf4 29.ef4 Re1 30.Kh2 Rc1 31.Rb4 ½–½. Mikhalchishin,Adrian (2530) – Tratar,Marko (2450), Ptuj, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8)

9.Qb3 ed4 10.Nd4 c6 11.0-0 Qe7 12.Rad1 Nf8 13.Rd2 Ng4 14.Qd1 h5 15.h3 Ne5 16.b5 Ne6 (16...a6 17.e4+=) 17.Nb3 Ng5 18.f4 (18.bc6!? bc6 19.Re1+=) 18...Nh3= 19.gh3 Bh3 20.Qe1 (better is 20.Re1!? Qh4 21.Ne4 Nc4 22.Bf6 Bf6 23.Nf6 Qf6 24.Bc4+=) 20...Bf1–/+ 21.Kf1 Ng4 22.Bg4 hg4 23.Nd1 Qe4 24.Qe2 Qh1 ½–½. Nedobora,Mikhail – Matamoros Franco,Carlos S, It (open), Mondariz (Spain), 1994. (=1.c4 e5 2.Nc3 d6 3.e3 g6 4.Nf3 Bg7 5.Be2 Nf6 6.d4 Nbd7 7.b4 0-0 8.Bb2 Re8)

9.Qb3 e4 10.Nd2 h5 11.a4 Nf8 12.h3 h4 13.b5 Bf5 14.a5 a6 15.ba6 ba6 16.Qc2 Ne6 17.Nb3 Nd7 18.Bg4 Bg4 19.hg4 Ng5 20.Kf1 Rb8 21.Rd1 Qc8 22.Ba3 Nf6 23.Rh4 Ng4 24.Nc1 Qf5= 25.Nd5 Ne6 26.Kg1 g5 27.Rh3+= Nf6 28.f3 Nd5–/+ 29.cd5 Qd5 30.fe4 Qa5 31.Bb2 c5 32.Bc3 Qc7 33.d5 Nf8 34.Bg7=+ Kg7 35.Qc3 f6 36.Ne2 Ng6 37.Ng3 Re5 38.Nh5 Kf8 39.Rf3 Kg8? 40.Rf6 Nf8+/- 41.Rdf1 Qe7 42.Rh6 Rb4 43.Ng3 Rb6? 44.Nf5 Qc7 45.Nd6! (45.Nd6 Nd7 46.Rf5 Qd6 47.Rd6 Rd6 48.Re5 Ne5 49.Qe5+-) 1–0. Kushch,Nikolai (2375) – Arzumanian,Georgy (2360), Marganets it UKR, 1999.

9.b5 c6 10.a4 h5 11.h3 e4 12.Nd2 c5 13.dc5 Nc5 14.Nb3 Nb3 15.Qb3 Be6 16.0-0 Rc8 17.Rfd1 Qc7 18.Rd4 Nd7 19.Nd5 (worse is 19.Re4 Nc5 20.Qb4 a5 21.ba6 ba6= (worse is 21...Ne4 22.Ne4 Bb2 23.Qb2 ba6 24.Nf6 Kf8 25.Ne8 Re8 26.c5+-)) 19...Qd8 20.Rd2 Ne5 21.Rad1 Qh4 22.Nf4 (better is 22.b6 Qg5 23.ba7 Bh3 24.Nf4 Bg2 25.Ng2 Nf3 26.Kh1 Nd2 27.Rd2 Bb2 28.Qb2+=) 22…Bc4+= 1–0. Gasimov,Ragim (2395) – Gadjily,Raouf (2440), AZE–Cup Azerbaijan, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8)

9.b5 e4 10.Nd2 Nf8 11.a4 h5 12.a5 a6 13.0-0 h4 14.ba6 ba6 15.Rb1 h3 16.g3 N8h7 17.Qc2 Ng5 18.Nd5 Bf5 19.Ba1 Ra7 20.Rb3 Ng4 21.Rfb1 c6 22.Nf4 Qa5+= 23.Bc3 Qc7= 24.Qb2 Nf3 25.Bf3= ef3 26.Rb8 Ra8 27.Ra8 Ra8 28.e4 Bc8 29.Nh3 Qe7 30.Qc2 d5= 31.Qd3 de4+= 32.Qe4 Qe4–/+ 33.Ne4 Bf5 34.Re1 Re8 35.Neg5 Re1 36.Be1 Bd4 37.Nf3 Bb6 38.Nf4 a5 39.h3+= Nf6 40.g4 Bc2 41.c5 Bc7 42.Nd4 Ba4 43.Nfe2+= Nd5 44.Nc3 Nc3 45.Bc3 Be5 46.Kf1 Bb3 47.Ke2 Bd5 48.f4 Bc7+= 49.Ke3 a4 50.Bb4 f6 51.h4= Kg7 52.g5 fg5 53.hg5 Kf7 54.Ne2 Bd8 55.Nd4 Be7 56.Ba3 Ke8 57.Bb4 Kd7 58.Kd3 Kc7 59.Ke3 Kb7 60.Kd3 Ka6 61.Ke3 Bd8 62.Ba3 Ka5 63.Kd3 Bg2 64.Ne6+/- Be7 65.Nd4 Bh1 66.Ke3 Bd5 67.Kd3 Bd8 68.Ke3 ½–½. Kaenel,Hansjuerg (2375) – Gerstner,Wolfgang (2380), Bodensee–Cup 1st, 1995. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5)

9.b5 e4 10.Nd2 Nf8 11.a4 h5 12.h3 h4 13.Qc2 Qe7 14.a5 N8h7 15.Na4 a6 16.Nb3 ab5 17.cb5 Nd5 18.b6 Qg5 19.Bc4? c6?? 20.0-0-0? Qg2–/+ 21.Bd5 cd5 22.Nc3 Be6 23.Nb5 Rec8 24.Bc3 Rc6 25.Qe2 Rd8 26.Kb2? Nf6?? 27.Na7= Rc4 28.Nd2 Qg5 29.Rdg1 Qf5 30.Nc4 dc4 31.Kc2 Nd5 32.Ra1 Ne7 33.Rhb1 Bd7 34.a6 ba6 35.b7 Rb8 36.Ra6 Nd5 37.Ra5?? Nc3-+ 38.Rf5 Ne2 39.Ra5 Ng1?? 40.Nc6?? Bc6-+ 41.Ra8 Ra8 42.ba8Q Ba8 43.Rb8 Bf8 44.Ra8 Nh3 45.Kc3 Nf2 46.Ra2 Ng4 (47.Kc4 Ne3 48.Kc3 Bg7-+) 0–1. Mittelbachert,Ulrich – Himmel,Hansjoerg, Ruhrgebiet, 1999.

9.b5 e4 10.Nd2 Nf8 11.Qc2 Bf5 12.h3 h5 13.0-0-0 (13.g4!? hg4 14.hg4 Bg4 15.Nde4 Be2 16.Nf6 Bf6 17.Ne2+=) 13...c6 14.bc6 bc6 15.Rdg1 d5 16.c5 Qd7 17.Ba6 Ne6 18.Qa4 g5 19.Nb3 Rab8 20.Be2 g4 21.Na5 Nd8 22.hg4 hg4 (worse is 22...Ng4 23.Rh5 Kf8 24.Nb3+/-; 22...Bg4?! 23.Nb3=) 23.Kb1 Nh7 24.Ka1 Re6 25.Rf1 Rg6 26.Bd1 Rh6 27.Ne2 Nf6 28.Ng3 Bg6 29.Be2 Nh5 30.Nh5 Rh5 31.Rh5 Bh5 32.Bc3 f6 ½–½. Vukelic,Tomislav (2260) – Zelenika,Srdjan (2350), CRO–chT2 qual, 2003. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 0-0 5.b4 d6 6.Bb2 Nbd7 7.c4 e5 8.Nc3 Re8)

9.b5 Nh5 10.0-0+= f5 11.a4 e4 12.Nd2 Ndf6 13.a5 f4 14.Bh5 Nh5 15.Nce4 Bf5 ½–½. Gasimov,Ragim (2420) – Sutovsky,Emil (2480), Groningen op, 1994. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 Nbd7 6.e3 0-0 7.Be2 e5)

9.Qc2 a5 10.b5 c5 11.bc6 (11.de5 Ne5 12.Ne5 de5+=) 11...bc6= 12.0-0 Ba6 (12...Rb8 13.Rab1=) 13.Rfe1 (13.de5 Ne5 14.Ne5 Re5+=) 13...Rb8 14.Rab1 Qc7 15.c5 ed4 (15...Be2 16.cd6 Qd6 17.Ne2=) 16.cd6+= (worse 16.Ba6 dc3 17.Bc3 Nc5=+) 16...Qd6 17.Ba6 dc3 18.Qc3 Nh5 19.Qa3 (19.Qc1 Bb2 20.Rb2 Rb2 21.Qb2 Nhf6+=) 19...Qa3 20.Ba3 Nhf6 (20...c5 21.Rec1 Rb1 22.Rb1+=) 21.Bd6 (21.Nd4 c5 22.Nc6 Rb1 23.Rb1 Bf8+=) 21...Rb1= 22.Rb1 Ne4 23.Ba3 (23.Rb7 Ne5 24.Be5 Be5=) 23...Nec5 (23...c5 24.Bd3 Nc3 25.Rb7=) 24.Bc4+= h6 25.Nd4 (25.Rd1 Bf8+=) 25...Rc8 (25...Bd4 26.ed4 Na4 27.Rc1+=) 26.g3 (26.Bc5 Nc5 27.Rc1 Kf8+=) 26...Ne4 27.Ne2 (better 27.Ba6!? Rc7 28.Rc1 Bd4 29.ed4+-) 27...Nd2 (27...Ne5 28.Rc1=+) 28.Rc1 Nc4 (28...Rd8 29.Kg2=+) 29.Rc4 Bf8 (29...c5 30.Nf4=+) 30.Bf8= Kf8 31.Nd4 Attacking the isolated pawn on c6 31...c5 32.Nb3 a4 33.Ra4 c4 34.Nd4 c3 35.Nc2 Nb6 36.Rd4 Ra8 37.a3 Ke7 38.Kf1 Ke6 39.e4 Ke5 (39...Rc8 40.Ke2+-) 40.f4 Ke6 41.Ke2 Ra4? (better 41...Rc8!?+-) 42.Ra4 (42.Kd3 f6+-) 42...Na4 43.Kd3 Kd6 44.Kc4 Kc6 (44...f6 45.Nd4+-) 45.Nd4 (45.Nd4 Kb6 46.e5+-) 1–0. kovacic (2380) – Alekhine1962 (2160), ChessWorld.net, 2017. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.d4 d6 6.e3 Nbd7 7.Be2 e5 8.Nc3 Re8)

9.Qc2 a5 10.b5 ed4 11.ed4 Nb6 12.0-0-0 (12.0-0!?=) 12...d5 13.c5 Bf5 14.Bd3 Bd3 15.Qd3 Nc4 16.Rhe1 Ng4 17.Re8 Qe8 18.Re1 Qd7 19.Re2 Re8 20.h3 Bh6 21.Kc2 Re2 22.Qe2 Qf5 23.Kb3 Nf6 24.Nd5 Nd2 25.Nd2 Qd5 26.Nc4 Ne4 27.Kc2 Nf2 28.a4 Ne4 29.Na5 Bg5 30.Nc4 h5 31.Ne5 Nd2=+ 32.Qd3 Qg2 33.Kc3 Qd5–/+ 34.Nc4 Ne4 35.Kc2 Nf2 36.Qe2 Qf5 37.Kb3 Qh3 38.Bc3 Qf5 39.Qe8 Kh7 40.d5= f6 41.Qf7 Kh6 42.Qf8 Kh7 43.Qe7 Kh6 44.d6 cd6 45.cd6 Qd3 46.Qf8 Kh7 47.Qf7 Kh6 48.Qf8 Kh7= 49.Qe7 Kh6 50.d7 Nd1 51.Qf8 Kh7 ½–½. Vaglio Munoz,Jaime – Silva Sanchez,Carlos (2365), Haifa ol (Men), 1976.

9.Qc2 e4 10.Nd2 Qe7 11.0-0-0 a5 12.b5 Nb6 13.a4 c6 14.h3 Bd7 15.g4 h6 16.Nb3 cb5 17.ab5 a4 18.Nd2 a3 19.Ba1 Rec8 20.Rdg1 Be6 21.d5 (21.h4 Nc4 (21...Bc4?! 22.Nc4 Nc4 23.g5=) 22.Kd1 Nd2 23.Kd2 d5-+) 21...Bd5 22.cd5 (better is 22.g5 hg5 23.Nd5 Nfd5 24.Bg7 Kg7 25.Ne4-+) 22...Nfd5 (22...Nbd5?! 23.Nc4 Nc3 24.Bc3–/+) 23.Qe4 0–1. Ianov,Viktor (2405) – Dovzik,Juri (2430), Nyiregyhaza op, 2004. (=1.c4 e5 2.Nc3 Nf6 3.e3 d6 4.d4 Nbd7 5.b4 g6 6.Bb2 Bg7 7.Nf3 0-0 8.Be2 Re8)

9.Qc2 Qe7 10.Nb5 e4 (10...Nb6 11.de5 de5 12.Be5 (< 12.Ne5 Qb4 13.Bc3 Qe7=+) 12...Qb4 13.Qc3=) 11.Nd2 (11.Nc7 ef3 12.Bf3+= (12.Na8?! fe2 13.Nc7 Rd8=)) 11...Nf8 12.d5 h5 13.h3 N8h7 14.Nd4 Bd7 15.N2b3 h4 16.Na5 Rab8 17.a4 Rec8 18.Qb3 Ne8 19.Rc1 Qg5 20.Rg1 Bh3 21.Kd2 Bg2 22.Bf1 h3 23.Bg2 h2 24.Rgf1 Qg2 25.Ke2 Ng5 (25...Ng5 26.Qd1 Nh3-+) 0–1. Okcular,Ayhan – Janev,Evgeni (2395), Balkaniad U20, 1993.

9.Qc2 Qe7 10.h3 Nf8 11.g4 ed4 12.Nd4 h6 13.0-0-0 a5 14.b5 a4 15.a3 (worse is 15.Na4 Ne4 16.Bd3 Nf2 17.Qf2 Ra4–/+) 15...Ne6 16.Rhg1 Ng5 17.Bf1 Nge4 18.Bg2 Bd7 19.Be4 (19.Na4 Nf2 20.Qf2 Ra4 21.Bb7 Rc4 22.Kb1 Ne4-+) 19...Ne4 20.Nd5 Qd8 21.Nf5 Bf5 (better is 21...gf5 22.gf5 f6+=) 22.gf5+/- g5 23.h4 c6 24.hg5 Bb2 25.Qb2 cd5 26.gh6 Kf8 27.h7 Ke7 28.Rd5 Qc7 29.Qb4 Nc5 (29...Nf2? 30.Kb1 Ne4 31.Re5 Kd7 32.b6+-) 30.Rgd1 Rad8 31.Qc3 Ne4 32.Qb4 Rc8 (32...Nc5!?=) 33.Re5 (worse is 33.Qa4 Qc4 34.Qc4 Rc4 35.Kb2 Nf2 36.f6 Kf6 37.Rd6 Kg7+=) 33...Kd7 34.Re8 Re8 0–1. Welling,Gerard (2355) – Kassebaum,Roman (2320), Oberliga NRW, 1997. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Nc3 e5 7.d4 Nbd7 8.Be2 Re8)

9.Qc2 h6 10.d5 c5 11.a3 e4 12.Nd2 Qe7 13.Nb3 b6 14.Nb5 Nf8 15.bc5 bc5 (15...dc5? 16.d6 Qb7 17.Nc7+/-) 16.Na5 Bf5 17.0-0 a6 18.Nc6 Qd7 19.Nc3 Qc8 20.Na4 N8d7 21.Bc3 h5 22.Rab1 Ng4 23.Bg7 Kg7 24.Bg4 Bg4 25.h3 Bf5 26.Rb3 g5 27.Rfb1 h4 28.Qc3 Kg6 29.Kh2 g4 30.hg4 Bg4 31.Nb6 Nb6 32.Rb6 Qf5 33.Qb2 Kh7 34.Rb7 Bh5 35.Rc7 Qg5 36.Rg1+/- Rg8+/-. Minaya Molano,Juan M (2285) – Perelman,Hernan (2145), Internet Section, 2004.

9.d5 e4 10.Nd2 h5 11.Qc2 Qe7 12.Rd1 Nf8 13.h3 h4 14.Nb3 a6 15.a4 N6d7 16.a5 Qg5+= 17.Kf1 f5 18.c5 Ne5 19.b5 dc5 20.Nc5+= Qe7 21.Ba3 Qf6 22.Qb3 Kh7 23.Bb4 Ned7= 24.Ne6 Ne6=+ 25.de6 Qe6 26.Bc4 Qe5=+ 27.Bf7 Nf6 28.Be8 Qe8 29.ba6 Ra6 30.Kg1 Be6 31.Qa4?? Bd7?? 32.Qb3 Be6 33.Qa4?? Qa4-+ 34.Na4 Bb3 35.Ra1 Nd5 36.Ra3 Ba4 37.Ra4 b5! 38.Ra3 Nb4 39.Kh2 Be5 40.g3 hg3 41.fg3 0–1. Tate,Emory (2390) – Serper,Grigory (2515), ch–USA GpA, San Diego USA, 2006.

9.d5 Kh8 10.Ng5 Rf8 11.g4 (better is 11.0-0!?+=) 11...Ng4 12.Nf7 Rf7 13.Bg4 Qh4 14.Qe2 Nc5 15.Bc8? (better is 15.Bf3 Bg4! 16.Bg4 Rf2 17.Kd2-+) 15...Rf2!! 16.bc5 (16.Qf2 Nd3 Deflection (16...Nd3 Decoy)) 16...Re2 17.Ke2 Rc8 18.Kd3 0–1. Johnsen,Svein Harald – Nilssen,Sven Wisloff (2210), Kalotturneringen, 1995. (=1.c4 Nf6 2.Nc3 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.Nf3 Nbd7 7.e3 e5 8.Be2 Re8)

9.de5 Ne5 10.Ne5 de5 11.0-0 Bf5 12.Qb3 Ne4 13.Rfd1 Qh4 14.Ne4 Be4 (worse is 14...Qe4 15.Bf3 Qh4 16.Bb7+/-) 15.Bd3 Red8 16.Be4 Qe4 17.f3 Qc6 18.b5 Qe8 19.Rd8 Rd8 20.Rd1 h5 21.Kf1 c6 22.a4 Rd1 23.Qd1 Qe7 24.Qb3 cb5 25.cb5 e4 26.Bg7 Kg7 27.f4 Qc5 28.Kf2 Qc1 29.Qa2 b6 30.a5 ba5 31.Qa5 Qb2 32.Kf1 h4 33.h3 Qc1 34.Kf2 Qc2 35.Kf1 Qc5 36.Kf2 Qc2 37.Kf1 Qd3 38.Kf2 Qc2 39.Kf1 ½–½. Kasparov,Sergey (2490) – Okhotnik,Vladimir (2420), Ranshofen AUT, Braunau Open, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 Nbd7)

9.de5 Ne5 10.Ne5 de5 11.Qb3 Bf5 Black intends e4 12.0-0 c6 13.Rfd1 Qc7 14.c5 e4 (14...Rad8 15.Rd8 Rd8 16.Rd1=) 15.h3 Nd7 16.Qc2 g5 17.Bg4 (17.Rd2!?+=) 17...Bg4=+ 18.hg4 Nf6 19.Qe2 Rad8 20.Rd8 ½–½. Kempinski,R (2585) – Hunt,A (2425), Bad Wiessee GER, 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8)

9.h3 Qe7 10.Qb3 Nf8 11.Nd5 Nd5 12.cd5 e4 13.Nd2 c6 14.dc6 ½–½. Govciyan,Pavel (2430) – Libiszewski,Fabien (2465), FRA–chB Aix–les–Bains, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8)

10.ed4 a5 11.b5 Nb6 12.Re1 a4 13.a3 Be6 14.d5 Bg4 15.Nd2 Bf5 16.h3 h6 17.Rc1 Qc8 18.Ba1 Bh8 19.Nf1 Bd7 20.Qd2 Bg7 21.Bd3 Bf5 22.Re8 Ne8 23.Re1 Bd3 24.Qd3 Nd7 25.Qc2 Nc5 26.Ne4 Ba1 27.Nc5 dc5 28.Ra1 ½–½. Woschkat,Karl_Heinz – Allen,Richard, IECG, 2000.

10.ed4 Nh5 11.Qd2 Nf8 (11...a5 12.a3=) 12.Rfe1+= Ne6 13.g3 Nf6 (13...a5 14.a3+=) 14.Bf1 (14.d5 Nf8+-) 14...Ng4 (14...a5!? 15.d5 Nf8+=) 15.d5+- Bh6 16.Qd3 (16.Qc2 Ng7+-) 16...Ng7 17.Re8 (17.Nb5 a6 18.Qa3 Bd7 19.Re8 Ne8+-) 17...Ne8 18.Re1 Bf5 19.Qe2 Bg7 20.Nh4 Bd7 21.h3 Nh6 22.Bg2 Nf6 23.Nb5 (23.Qd2 Nf5 24.Nf3 h5+=) 23...Bb5 (23...a5!?+=) 24.cb5+- Qe8 (24...Qd7 25.Qc4+-) 25.Qf1 (25.Qd2 Qf8+-) 25...Qd8 (25...Qd7 26.Bc1+-) 26.Qc4 Ne8 (26...a6 27.a4+-) 27.Bc1 (27.Bg7 Ng7 28.Nf3 Nhf5+-) 27...Qf6 28.Qe4 (28.Qe2 Qe5+-) 28...Kf8 (28...Qe5 29.g4+-) 29.Nf3 (better 29.Bd2+-) 29...Qc3?? (better 29...Nf5+-) 30.Qe7+- Kg8 31.Qe8 Re8 32.Re8 Bf8 33.Bh6 (33.Bh6 Qa1 34.Bf1+-) 1–0. Krebbers,Wilfried (2110) – Schorr,Joerg (1965), 20st Goch op, 2009.

10.Nd4 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Ne5 14.h3 Bd7 15.Ndb5 Qc8 16.Kh2 Qb8 17.Kg1 Qc8 18.Nd5 Nd5 19.cd5 Bh3 20.gh3 Qh3 21.Nc7 Nf3 22.Bf3 Be5 23.Be5 Re5 24.Bg4 Rg5 ½–½. Dobosz – Modr, Praha 1979.

10.Nd4 Ne5 11.Qb3 h5 12.Rad1 Nfg4 13.h3 Nh6 14.e4 c6 15.f4 Qh4?? (better is 15...Nd7+=) 16.fe5+- Bh3 17.Rf2 (better is 17.ed6!? Qg3 18.Rf2 Be5+-) 17...de5 18.Nf3 (18.gh3?! ed4 19.Na4 Re4=) 18...Qg3 19.Nh2 Be6 20.b5 Ng4 21.Bg4 hg4 22.Nf1 Qh4 23.g3 Qe7 24.Na4 cb5 25.Qb5 a6 26.Qa5 b5 27.Nb6 Qc7 28.c5 (28.cb5 Reb8–/+) 28...Rad8 29.Rc1 Qc6 30.Re2 (30.Qa6 Ra8 31.Na8 Qa6+=) 30...Bf8 31.Qc3 f6 32.a3 Bh6 33.Nd2 Bd2 34.Rd2 Qe4 35.c6 Kg7 36.Rg2 Rd3 37.Qc5 Qf3 38.Bc3 Rd1 39.Rd1 Qd1 40.Kf2 ½–½. Quist,Viggo Bove – Lund,Jens Christian, Ch–DEN corr, 1973. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8 9.0-0 ed4)

10.Nd4 Ne5 11.h3 c6 12.Qb3 a5 13.a3 Bd7 (better is 13...Qe7!?=) 14.f4+/- Nc4 15.Bc4 d5 16.Bd3 Re3 17.Nd1 Re8 18.Nc2 a4 19.Qc3 Nh5 20.Qd2 Bb2 21.Nb2 Qf6 22.Rab1 Ng3 23.Rf3 Nf5 24.Bf5 Bf5 25.Nd3 b6 26.Ne5 d4 27.Rff1 c5 28.bc5 bc5 29.Rb7 Be6 30.Rc1 Rec8 31.Ne1 Bd5 32.Rb5 Qd6 33.N1d3 1–0. Gofman,Albert – Pozo,Alberto (1710), OP–2009–0-00826, 2009.

10.Nd2 c6 11.a4 a5 12.b5 c5 13.Qc2 Now all is on e4 13...cd4 14.ed4 Nb6 15.Nd1 Bg4 16.Re1 1–0. Jozefini,Lubor (1895) – Hale,Donald (2000), FICGS, 2014. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8)

10.Nd2 c6 11.Qc2 d5 (11...Qe7 12.a3+=) 12.cd5 (12.b5 Nb6+=) 12...cd5 13.Qb3 (13.Rfc1 a6+=) 13...Nb6 14.a4 Be6 (14...Bg4 15.Bb5 Re7 16.Rfc1=) 15.a5 Nbd7 (15...Nc8 16.a6 Rb8 17.ab7 Rb7 18.Ba6+=) 16.Rfc1 a6 17.b5 ab5 18.Nb5 (18.Qb5 Ra7+=) 18...Ra5= 19.Nc7 Ra1 20.Ba1 Rf8 21.Qb7 Qb8 (21...Qe7 22.Ne6 fe6 23.Rc7=) 22.Qc6= Qb6 23.Ne6 fe6 24.Qb6 Nb6 25.Rc6 Rc8 (25...Ra8 26.Bb2 Na4 27.Ba3+=) 26.Rb6 (worse 26.Re6 Rc1 27.Bf1 Nfd7–/+ (worse 27...Ra1 28.Rb6 Ra2 29.Nc4+-)) 26...Rc1 27.Nf1 Ra1 28.Re6 Kf7 (28...Ra2 29.Ng3+=) 29.Ra6 Ra6 30.Ba6 Bf8 31.Nd2 (31.f3 Bd6+=) 31...Bb4 32.Nb3 Ke7 33.Bb5 (33.Kf1 Kd6+-) 33...Nd7 (33...g5 34.f3+=) 34.Kf1 Kd6 (34...Nf6 35.Ke2+-) 35.Ke2 (35.Bd7 Kd7 36.f3 Ke6+-) 35...Nf6 36.f4 h5 (36...h6 37.h3+-) 37.g3 Nd7 (37...Bc3 38.Nc5+-) 38.Na1 (38.Nc5 Bc5 39.dc5 Nc5+-) 38...Bc3 39.Nc2 (39.Bd7 Kd7 40.Nb3 Bb4+-) 39...Nf6 40.h3 Ke6 (40...Kc7 41.Ba4+-) 41.Ne1 Ng8 (better 41...h4 42.g4 Ng4+-) 42.Nc2 (42.Ng2 Ne7+-) 42...Nf6 43.Bc6 (43.Ba4 Nd7+-) 43...Kd6 44.Ba4 Ke6 (44...Kc7 45.Ne1 Kd6 46.Ng2+-) 45.Na3 Ba5 46.Nb5 Nd7 (46...Bb6 47.Kd2+-) 47.Na7 Nb8 (47...Bc7 48.Bb5+-) 48.Be8+- Kf6 49.Nc6 Nc6 50.Bc6 Ke6 51.g4 hg4 52.hg4 Kd6 (52...g5 53.fg5 Bb4 54.Bb7+-) 53.Be8 (53.Ba4 g5 54.fg5 Bd8+-) 53...g5 54.fg5 Bd8 55.g6 Bf6 56.Kf2 Bg7 (56...Ke7 57.Bc6 Ke6 58.g5+-) 57.Kg3 Ke7 58.Bf7 (58.Bc6 Kd6 59.Bb7 Bh6+-) 58...Kd6 59.Kf4 Bf6 (59...Bh6 60.g5 Bg7 61.Be8+-) 60.g5 (60.Kf5 Bg7+-) 60...Bg7 61.Kf5 Bh8 62.g7! Bg7 (62...Bg7 63.Bh5 Combination) 63.Bh5 Ke7 64.Kg6 Bh8 (64...Bf8 65.Bd1+-) 65.Kh7 (65.Kh7 Bf6 66.gf6 Kf6 67.Kg8+-) 1–0. Gofman,Albert – Henke,Simon, RD–2010-0-00041, 2010. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.c4 0-0 5.b4 d6 6.Bb2 Nbd7 7.Be2 e5 8.Nc3 Re8)

10.Nd2 c6 11.d5 Qe7 12.Qc2 Now all is on e4 12...Nf8 (12...cd5 13.cd5 Nb6 14.Qb3+=) 13.a4+= h5 14.Ra2 (14.h3 N8d7+-) 14...Bf5 15.a5 cd5 16.Nd5 (16.cd5 Rec8+=) 16...Nd5 17.cd5 Bb2 18.Qb2 Nh7 (18...Rac8 19.Bb5 Bd7 20.Be2=) 19.Rc1 Rac8 20.Raa1 (20.Nc4 h4 21.Qd4 Rc7+=) 20...Nf6= 21.Qa2 Nd7 22.Nb3 Ne5 23.Nd4 Bg4 24.h3 (24.Bb5 Bd7=) 24...Be2=+ 25.Ne2 Nd3 26.Rc4 Rc4 (26...Qf6 27.Rf1=+) 27.Qc4 f5 (27...Nf2!? 28.Qd4 Nd3 29.Qa7 Qe5=) 28.Nd4= Qd7 29.Qc3 (29.Ne6!?+=) 29...Rc8= 30.Qd2 a6 31.Rb1 Qc7 32.Qa2 Qc4 33.Qc4 Rc4 34.b5 Rc1 35.Rc1 Nc1 36.Kf1 Nd3 37.Ke2 Nc5 38.b6 Kf7 39.f4 ef3 40.gf3 Kf6 41.f4 Ne4 42.Ne6 Ke7 43.Nc7 h4 (43...Kd7 44.h4=) 44.Ke1 (44.Na6 Nc3 45.Kd3 Nd5 46.Kd4+-) 44...g5?? (better 44...Nc5=) 45.Kf1?? (better 45.fg5 Ng5 46.Na6+-) 45...gf4 (better 45...g4!?–/+) 46.ef4= Nd2 47.Ke2 Nb3 48.Kd3 Nc5 (48...Na5?? 49.Kc3 Kd7 50.Kb4 Nc6 51.dc6 Kc6 52.Ka5+-) 49.Ke3 Ne4?? (49...Kd7 50.Kd4=) 50.Kf3?? (better 50.Na6 Kd8 51.Nc7+-) 50...Kd7 51.Ke3 Nc5 ½–½. travisjolson – dogmatix, gameknot.com, 2010.

10.Nd2 Nf8 11.Qc2 Now all is on e4 11...Bf5 12.a4 h5 13.a5 a6 14.b5 N8h7 15.c5 White intends b6 15...d5 16.Qb3 White plans b6 16...Ng5 17.Rfe1 Qd7 18.b6 c6 19.Nf1 h4 20.Bd1 Bh3 21.f4?? (better 21.Nd2=) 21...ef3!-+ 22.Bf3 (22.Bf3 Nf3 Double attack; 22.gf3 Bf1 Decoy) 22...Bg4 (better 22...Nf3 23.gf3 Qf5-+) 23.Qd1=+ Bf3 24.gf3 Qh3 25.Kf2? (25.Nd2 Re7 26.Qe2 Rae8-/+) 25...Re7 (better 25...Re4-+) 26.f4?? (better 26.Bc1-/+) 26...Ng4-+ 27.Kg1 (27.Qg4 Qg4 28.fg5 Qf5 29.Kg1 Qg5 30.Kh1-+) 27…Nf3 (27...Nf3 28.Qf3 Qf3-+) 0-1. Cavadini,I (1985) - Baskin,R (2390), XX Rio Grande Domingo Int, 2020. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d4 Nbd7 7.Nc3 e5 8.Be2)

10.Nd2 Nf8 11.Qc2 Now all is on e4 11...Bf5 12.a4 h5 13.a5 a6 14.b5 N8h7 15.c5 d5 16.c6 bc6 17.ba6 (17.bc6 Qd6+=) 17...c5= 18.Bb5 (18.Nb3 c4 19.Nc5 Ng5=) 18...Re6?? (better 18...cd4 19.Be8 dc3 (19...Ne8?! 20.Nb5=) 20.Bf7 Kf7 21.Bc3 Qd6-/+) 19.Nb3+= Ng4? (19...c6 20.Ba4 Nd7 21.dc5+=) 20.h3 (better 20.Nc5 Qd6 21.g3+-) 20...Ng5?? (20...cd4 21.Nd4 Bd4 22.hg4 Bc3 23.Qc3 d4 24.Qd4 Qd4 25.Bd4 Bg4+-) 21.Ne2 (21.hg4 cd4 22.Nd4 Bd4+-) 21...Bh6?? (better 21...Nf3 22.gf3 ef3=) 22.Ng3 (22.hg4 Bg4 23.Nc5 Rf6+-) 22...Nh3 (22...Rb8 23.hg4 Bg4+-) 23.gh3 Qh4 (23...Ne3 24.fe3 Bh3 25.Qf2 (25.Nc5?! Be3 26.Kh1 Bf1 27.Nf1 Qh4 28.Qh2 Qh2 29.Kh2 Bf4 30.Kg2 Rd6+/-) 25...Bf1 26.Rf1+- (26.Bf1 Rf6 27.Qe1 Rb8-/+; 26.Kf1 Rf6 27.dc5 Rf2 28.Kf2 Be3 29.Kg2 Qg5-+; worse 26.Qf1 Be3 27.Kg2 Rf6-+; 26.Nf1?! Rb8 27.Ba4 c4+/-)) 24.hg4 Bg4 25.Rfe1 (25.Qc3 c4 26.Bc4 Bf3+-) 25...c4 26.Bc4! dc4 27.Qc4 Rf6 (27...Qh3 28.d5 Bf3+-) 28.Qf1?? (28.Ne4 Bf3 29.Ng3+- (29.Nf6?? Kh8 30.Qf7 Qh1)) 28...Bh3+= 29.Qe2 (29.Qb5!? Rf3 30.Qe5+/-) 29...Bg4= 30.Qf1 Bh3 31.Qe2 (better 31.Qb5!? Rf3 32.Qe5+/-) 31...Bg4= 32.Qf1 Bf3?? (32...Bh3 33.Qb5 Rf3+=) 33.Rac1 (33.Nd2!?+-) 33...Qg4+/- 34.Kh2 (34.d5 Rfa6 35.Kh2= (35.Rc7 h4 36.Kh2 hg3 37.fg3 Rb8-+)) 34...h4= 35.Qh3 hg3 36.fg3 Rf5 (36...Qh3 37.Kh3 Kg7 38.Kh2= (38.Rc7 Rh8 39.Rc8 Rh7 40.Rg8 Kg8 41.a7 Be3)) 37.Rc5 (37.Qh6?? Rh5 38.Qh5 Qh5 39.Kg1 Qh1 40.Kf2 Qg2; 37.Rc7?? Qh3 38.Kh3 Rh5) 37...Qh3 38.Kh3 Ra6 39.g4 (39.Bc3 Rc6 40.g4 Rfc5 41.dc5 f5 42.gf5 gf5=+) 39...Rg5 (39...Bg4 40.Kg4 Rf3 41.Rg5-/+) 40.Rg5= (40.Rc7? Bg4 41.Kh2 Bf8-+) 40...Bg5 41.d5 (41.Kg3!?=) 41...f5-/+ 42.Be5 Bg4 43.Kg3 Ra7 (43...c6!? 44.Rc1 cd5 45.Rc8 Kf7=+) 44.Bd4= Ra8 45.Rc1 (45.Rh1 Bh5=) 45...Be7=+ 46.Be5 Bd6 47.Bd6 cd6 48.Kf4 Kf7 49.Kg5 Ra7 50.Rc6 Bd1 51.Nd4 Ra5? (better 51...Ba4 52.Rd6 Ra5 53.Rf6 Ke8+/-) 52.Rc7+- Ke8 (52...Kf8 53.Kg6 Ra8 54.Nf5+- (54.Kf5?! Ra2+-)) 53.Kf6 (53.Kg6?! Rd5 54.Ne6 Re5+/-) 53...Ba4 (53...Rc5 54.Rg7 Kd8+-) 54.Ne6 Bd7 55.Rb7 (55.Rb7 Ra8 56.Nc7 Kd8 57.Na8+-) 1-0. Kochavi,Ori (2270) - Shohat,Yotam (2370), 40th ch-ISR, 2021. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5)

10.Nd2 h5 11.a4 Nf8 12.a5 h4 13.a6 (13.f3 ef3 14.Rf3 c5+=) 13...b6 (13...h3 14.g4+=) 14.f3 (14.b5 h3+/-) 14...Bh6 15.Nde4 (15.f4 h3+/-) 15...Be3 16.Kh1 Nh5 (16...h3 17.g3+/-) 17.Nd5 Bh6 18.Bc1 (18.b5 f5+/-) 18...Bc1+= 19.Qc1 f5 20.Nec3 Kg7 (20...c6 21.Nf4 Nf4 22.Qf4=) 21.Re1 (21.b5 Nf6+/-) 21...Ne6 22.f4 Ng3 23.Kg1 c6 24.Bf3 cd5 25.hg3 hg3 26.Bd5 Nd4?? 27.Re8+- Qe8 28.Qe1 Qh8?? 29.Qe7+- Kh6 30.Qh4 Kg7 31.Qh8 Kh8 32.Ba8 (32.Ba8 Nc2 33.Ra4+-) 1–0. Massana,Jorge – Bonin,Jay R (2375), Manhattan CC–ch, 1985.

10.Ne1 Nf8 11.Nc2 h5 12.f4 ef3 13.Bf3+/- Ne6 14.Qd3 Ng5 15.Rae1 c5 16.Bd5 Nd5= 17.Nd5 Ne4 18.Ba1 b6 19.dc5+= Ba1 20.Na1 dc5= 21.bc5 bc5 22.Nb3 Bb7 23.Rd1 Bd5 24.Qd5 Qe7= 25.Qd7 Rac8 26.Qe7 Re7=+ 27.Rd3 Rc6 28.Rc1 Nf6 29.Rc2 Kg7 30.h3 Re5 31.Nd2 Ra6 32.Nf3 Re7 33.Nd2 g5 34.Nb3 Re5 35.Rd8 Rc6 36.Rd3 h4 37.Nd2 Kg6 38.Ra3 a6 39.Kf2 Rd6–/+ 40.Nf3 Ne4 41.Ke1 Re7 42.Rc1 f6 43.Rd1 Rb6 44.Rb3 Rb4 45.Rc1 a5 46.Nd2 Ng3 47.Kf2 Rd7 48.Ke1 Kf5 49.Rc2 Ne4 50.Rb4 ab4 51.Nb1 g4-+ 52.a3 gh3 53.gh3 ba3 54.Ra2 Rg7 55.Kf1 Rg3 56.Ra3 Rh3 57.Kg2 Rg3 58.Kh2 Kg4 59.Ra8 Re3 0–1. Barnaure,V (2415) – Timoshenko,G (2545), May Roses Cup, Bucharest ROM, 2006.

10.Nd2 Nf8 11.b5 h5 12.a5 N8h7 13.Qc2 Bf5 14.a6 b6 15.h3! Ng5 16.Nb3 Qd7 17.d5! Qc8 18.Nd4 Nd7 19.Nf5 gf5 20.Bh5 Ne5 21.Be2 Qd8 22.0-0-0! Nh7 23.g4 Nf6 24.gf5 1–0. Izmestoev – Buneev, Perm 1982.

10.Nd2 Nf8 11.b5 h5 12.h3 N8h7 13.a5 Ng5 14.Qb3 Bf5 15.a6 b6 16.0-0-0 Qc8 17.Kb1 c5 18.dc5 dc5 19.Nd5 Ngh7 20.g4 Nd5 21.cd5 (21.gf! -+) 21...hg4 22.hg4 Bg4 23.Bg4 Qg4 24.Bg7 Kg7 25.Qc3 Nf6 26.Nc4 Rad8 27.d6 Rh8 28.Rhg1 Qd7 29.Qb2 Qe6 30.Qc3 Rh5 31.Rd2 Kg8 32.Rgd1 Nd5 33.Qa3 Nb4 34.Nb6 ab6 35.a7 Kg7 36.d7 Nd3 37.a8Q Ra8 38.Qa8 Qd7 39.Qa4 Qd5 40.f3 c4 41.fe4 Qe4 42.Rc2 Rh1 43.Rh1 Qh1 44.Ka2 Qd1 45.Qc4 Qc2 46.Qc2 Nb4 47.Kb3 Nc2 48.Kc2 Kf6 0–1. Sokolski – Kotov, Odessa 1960.

10.Nd2 Nf8 11.b5 h5 12.h3 N8h7 13.a5 Ng5 14.Qb3 Bf5 15.a6 b6 16.0-0-0 (16.0-0 Rc8+/-) 16...Qc8 17.Kb1 c5 18.dc5 dc5 (18...bc5!? 19.Nf1 Rb8+=) 19.Nd5+= Ngh7 20.g4 hg4 21.hg4 Bg4 22.Bg4 Qg4 23.Nc7 Rad8 24.Ne8 Ne8 25.Qc2 Ng5 26.Rhg1 Qh4 27.Bg7 Ng7 28.Nb3 Nf3 29.Rd8 Qd8 30.Rd1 Qe7 31.Nd2 Ng5 32.Ka2 f5 33.Nb1 Nf3 34.Nc3 Ne5 35.Nd5 Qf7 36.Qc3 Ng4 37.Kb3 Ne8 38.Rh1 Ng7 39.Nb6?? (39.Ka2 Nh5+-) 39...Nf2 (better is 39...ab6!? 40.Qd2 Nf6=) 40.Rf1+/- Nd3 41.Nd5 1–0. Nickel,Arno – Heyland,Wolfram, Germany M corr BdF, 1987. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 Nbd7 6.Be2 0-0 7.d4 e5 8.Nc3 Re8 9.a4 e4)

10.Nd2 Nf8 11.b5 h5 12.h3 N8h7 13.Qb3 Bf5 14.a5 c5 15.bc6 bc6 = 16.a6 Rb8 17.Qc2 Qb6 18.Ba3 c5 19.dc5 dc5 20.Na4 Qa6 21.Nc5 Qc8 22.Ndb3 Ng5 23.Bb2 Nd7 24.Bg7 Nc5 25.Nc5 Kg7 26.Qc3 Kg8 27.Na6 Rb7 28.g4 Be6 29.gh5 Nf3 30.Bf3 ef3 31.h6 f5 32.c5 Kh7 33.c6 Kh6 34.Rg1 Rb1 35.Rb1 Qa6 36.Qc2 Rc8 37.Rb4 Qa1 38.Qd1 ½–½. Urzica – Juhnke.

10.Nd2 h5 11.a5 Nf8 12.b5 Bf5 13.a6 b6 14.Na2 N8h7 15.Nb4 Bd7 16.Qc2 Qc8 17.d5 Bf5 18.h3 h4 19.0-0-0 (19.Nc6 Bd7+/-) 19...Nd7 20.Bg7 Kg7 21.g4 hg3 22.fg3 Nc5 23.g4 Bd7 24.Rdf1 Qd8 25.Qc3 Kg8 26.h4 Qe7 27.g5 (27.h5!?+-) 27...Qe5+/- 28.Qe5 Re5 29.Rf4 Rf8 30.Rhf1 (30.Bg4 Be8+/-) 30...Kg7+= 31.Bg4 Be8 32.Kc2 f6 33.gf6 Rf6 34.Nb3 Nb3 35.Kb3 Rf4 36.Rf4 Nf6 37.Kc3 g5 38.hg5 Rg5 39.Bf5 Rg1 (39...Bg6!? 40.Bg6 Kg6 41.Nc6+-) 40.Be4+- Ng4 41.Nc2 Rg3 (41...Bd7+-) 42.Nd4 Ne3 (42...Bd7 43.Ne6 Kh6 44.Rf7 Re3 45.Kd4 Re4 46.Ke4+-) 43.Ne6 Kh8 44.Kd4 Nd1 (44...Nc4 45.Nc7 Bb5 46.Nb5+-) 45.Rf8 (45.Rf8 Rg8 46.Rf1+-; worse is 45.Nc7 Bg6 46.Bg6 Rg6+-) 1–0. Heinz,Juergen – Ziese,Gerhard, DDR corr, 1987. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.Nc3 Re8 9.a4 e4)

10.Nd2 h5 11.b5 Nf8 12.a5 h4 13.h3 N8h7 14.a6 b6 (14...ba6!? 15.ba6 c5=) 15.d5 Nd7 16.Nb3 Nc5 17.Nd4 Qg5 18.Kf1 f5 19.Bc1 Bd7 20.Ra3 Nf6 21.Na4 Re7 22.Nc5 dc5 23.Nc6 Bc6 24.bc6 Ne8 25.Rb3 Nd6 26.Qc2 Rf8 27.Qd2 Be5 28.Bb2 (28.Rg1!?+=) 28...f4 29.Be5 Re5 30.ef4 Rf4 31.Kg1 Qf6 32.Qe1 Ref5 (32...Re8!? 33.g3 hg3 34.Rg3 Nf5+=) 33.Bg4= Rf2 34.Bf5 Rf5 35.Re3 Qe5 (better is 35...Nc4!? 36.Re4 Nd2 37.Re8 Kf7 38.Qe6 Qe6 39.Re6 Rd5–/+) 36.Qh4= Qd4 37.Qh6?? (better is 37.Qd8 Rf8 38.Qg5=) 37...Rf6-+ 38.Kh2 Nf5 39.Qf4 Ne3 40.Qc7 Nf1 41.Rf1 Rf1 42.Qd8 Kh7 43.Qh4 Kg7 44.Qe7 Rf7 45.Qd6 Qf6 46.Qg3 Kf8 47.c7?? Qf5-+ 48.d6 Ke8 49.Qc3 Kd7 50.Qh8 Qf4 51.Kg1 Qf1 52.Kh2 Qf4 53.Kg1 Qf1 54.Kh2 Qf4 ½–½. Volkov,Sergey (2625) – Andreikin,Dmitry (2500), Champions Challenge, 2006. (=1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.e3 Nbd7 5.Nf3 g6 6.b4 Bg7 7.Bb2 0-0 8.Be2 Re8 9.a4 e4)

10.0-0 c6 11.Qb3 Qe7 12.Rfd1 (12.Ba3 e4 13.Nd4 Bf8=) 12...a5 (12...e4 13.Nd4+=) 13.a3 Bf8 (13...Rd8 14.c5+=) 14.Na2 (14.c5!?+=) 14...e4 (14...ab4 15.ab4 b6 16.Ba3=) 15.Nd2 Ne5 16.h3 Bf5 (16...Bg7 17.Bd4 ab4 18.ab4+=) 17.Bc3 (17.g4 Bd7 18.g5 Nh5 19.Ne4 a4= (19...Bh3 20.Bh5 Bg7 21.Be2 Nc4 22.Qc4 Bb2 23.Bf3+-)) 17...h5 (17...ab4 18.Nb4 Bh6=+) 18.Qb2 (18.ba5!? Qc7 19.Rab1=) 18...Nfd7=+ 19.Qc2 (19.Qb1 Nf3 20.Bf3 ef3-+) 19...Nf3–/+ 20.Bf3 (20.Kf1 Qh4 21.ba5–/+ (21.gf3?? ef3 22.Qb2 Qh3 23.Ke1 fe2 24.Ke2 Rad8-+)) 20...ef3-+ 21.e4 Bh3 22.Nf3 (22.gh3 Qg5 23.Kf1 Qg2 24.Ke1 ab4 25.ab4 Nc5-+) 22...Bg4 23.Re1 (23.Rab1 Qe4 24.Qe4 Re4 25.ba5 Nc5-+) 23...Bf3 24.gf3 Ne5 25.Be5 (25.Qe2 Qg5 26.Kh1 Red8-+) 25...Qe5 26.c5 (26.Rab1 Qg5 27.Kf1 ab4 28.Nb4 Ra3-+) 26...ab4 27.ab4 (27.Nb4 Bc5 28.f4 Qe7-+) 27...Ra3 28.Rad1 Rf3 29.Rd3 Rf4 (better 29...Rd3 30.Qd3 Bg7 31.Kf1-+) 30.Rde3? (30.f3 Rh4 31.Red1 Rh3-+) 30...Bh6 (better 30...Rg4 31.Kf1 Qh2-+) 31.Kf1 (31.Qd3-+) 31...Rh4 32.Nc3 (32.Qc3 Rh1 33.Ke2 Be3 34.Qe5 Re1 (34...Re5?! 35.Rh1 Bg5 36.Kd3-+) 35.Ke1 Re5 36.fe3 h4-+) 32...Rh1 33.Kg2 (33.Ke2 Re1 34.Ke1 Be3 35.fe3-+) 33...Qh2 34.Kf3 Qh3 (better 34...Qh4 35.Ke2 Re1 36.Ke1 Be3 37.b5-+) 35.Ke2 Re1 (35...Re1 36.Ke1 Be3 37.fe3 Qh1 38.Ke2 Qg2 39.Kd3 Rd8 40.Nd5 Qc2 41.Kc2 cd5-+) 0–1. Nikitin,Aleksander I (2095) – Stankiewicz,Pawel (2015), Cracovia B, 2013.

10.0-0 c6 11.e4 Qc7 12.Qc2 Nf8 13.Rad1 Bg4 14.Nd2 Ne6 15.Nb3 Rad8 (15...Be2 16.Ne2 c5 17.bc5 Nc5 18.Nc3=) 16.f3 Nd4 17.Nd4 ed4 18.fg4 dc3 19.Qc3 Rd1 (19...Re4 20.Bf3 (worse 20.Rf6 Re2 21.Rfd6 Bc3 22.Rd8 Kg7 23.Bc3 Kh6=+) 20...Ne8 21.Qb3 Rd1 22.Rd1=) 20.Bd1+/- Nh5 21.Qb3 Bb2 22.Qb2 (22.gh5?! Bd4 23.Kh1 Re4 24.hg6 hg6=) 22...Nf4 23.Qf6 (23.Qd4 c5 24.Qc5 Qc5 25.bc5 Nd3+=) 23...Nd3 (better 23...Re4!? 24.g3 Ne6=+) 24.c5 Qe7 25.Bb3 Qf6 26.Rf6 Ne5 27.Rd6 (27.g5 a5 28.ba5 Ra8+=) 27...Kf8 (better 27...Ng4!? 28.Rd7 Re4 29.Rf7 Kh8+=) 28.g5+/- Ke7 29.h3 a5 30.Rd4 (worse 30.ba5 Ra8=) 30...Ra8 31.ba5 (better 31.Kf1!?+/-) 31...Ra5= 32.Rb4 Ra7 33.Kf1 Nd7 34.e5 Nc5 (worse 34...Ne5 35.Re4 f6 36.Ke2+=) 35.Bc4 (35.Ke2!?=+) 35...Ra4 36.Ra4 Na4 37.Ke2 Nb6 38.Bb3 Nd7 39.e6 (39.a4!?-/+) 39...fe6-+ 40.Ke3 Kd6 41.g4 (41.a4 Nc5 42.Bc2 b5-+) 41...Ke5 (41...b5 42.a3-+) 42.h4 Nb6 43.Kf3 Nd5 44.Bc2 b5 45.h5 Ne7 46.a4 ba4 47.Ba4 Kd4 48.Bc2 c5 49.Bb1 c4 50.Be4 c3 51.Bb1 Nc6 52.Kf4?? (52.Ke2 e5 53.hg6 hg6 54.Bg6-+) 52...Ne5 53.Bc2 Nd3 54.Kg3 Ke3 (54...Ke3-+) 0-1. Baranov,G (2315) - Demchenko,A (2670), Republic of Adygea Rapid, 2019.

10.0-0 e4 11.Nd2 Qe7 (11...a5 12.a3=) 12.a3 b6 (12...a5 13.c5=) 13.Qc2 Pawn e4, live or die! 13...Bb7 14.Nb3 (14.Nb5 Ne5=) 14...Ne5 (14...Red8 15.Rfd1=) 15.Rfe1 (15.Rfd1 Rad8=) 15...Nd3 (15...Rad8 16.Red1=) 16.Bd3+= ed3 17.Qd3 Ng4 18.h3 Ne5 19.Qe2 Nf3?? (better 19...Qe6 20.Nb5 Qc6+=) 20.gf3+- Qg5 21.Kh1 Qh4 Threatening mate... how? 22.Kg2 Qg5 23.Kh2 (better 23.Kf1!? Qh4 24.Reb1 Qh3 25.Ke1 Bf3 26.Qf1 Qf1 27.Kf1+-) 23...Be5+= 24.Kh1 Qf6 25.Nd2 (25.Nd5 Bd5 26.cd5 Bb2+=) 25...Bc3 26.Bc3 Qc3 27.Red1 (27.Ra2 Rad8+=) 27...a5 28.b5 Rad8 29.Ne4 (29.Kg2 Qf6 30.Nf1 Bc8=) 29...Rd1=+ 30.Rd1 Be4 31.fe4 Qa3 (31...Re4 32.Rd7=) 32.Rd7 Qc5 33.Qd3 a4 34.Qd5 (34.Rd5!? Qe7 35.Rd7 Qe4 36.Qe4 Re4 37.Rc7=+) 34...Qd5–/+ 35.cd5 (worse 35.Rd5 Re4 36.c5 bc5 37.Rc5 Rb4 38.Rc7 Rb5-+; 35.ed5?? a3 36.Rc7 Ra8-+) 35...Rc8 36.Kg2 Kg7 37.d6 cd6 38.Ra7 Rc4 39.Kf3 Rb4 40.Ra6 Kf6 (better 40...Rb5!? 41.Ra4 Kf6–/+) 41.Rb6= Ke5 42.Rb7 d5 (42...h5 43.Re7 Kf6 44.Ra7=) 43.Re7 (43.ed5!? a3 44.Rf7=) 43...Kd6=+ 44.Rf7 de4 45.Kf4 Kc5 (45...Rb5 46.Ra7 Rf5 47.Kg3 Rf3 48.Kg2=) 46.Rh7 Kb5 47.Ra7 Kc4 (47...Kc4 48.Ra6 Kb3-+) 0–1. Gretencord,Ulrich (1945) – Rehder,Joerg (2135), DESC, 2002.

10.a3 e4 (10...a6 11.e4+=) 11.Nd4 (11.Nd2 Qe7=) 11...h5 (11...a5 12.c5=) 12.h3 (12.c5 Ne5+=) 12...Nf8 (12...c5 13.Ndb5=) ½–½. Winants,Luc – Fedorowicz,John P, Wijk aan Zee, 1990.

10.c5 a5 11.a3=.

10.c5 c6 11.Qb3 (11.0-0 a5 12.a3 Qe7+=) 11...Qe7 (11...a5 12.a3=) 12.Ng5 (12.0-0 b6 13.cb6 ab6=) 12...Nd5 (12...a5 13.a3=+) 13.Nge4 (13.Nd5 cd5 14.Nf3 a5=) 13...N7f6= 14.Nd6 White prepares b5 (14.Nd5 Nd5 15.0-0 Be6=) 14...Rf8 (14...Rd8 15.Nd5 Nd5 16.0-0=+) 15.Nc8 (15.0-0 Be6 16.Nd5 Nd5=) 15...Rfc8 16.0-0 b6 (16...a5!?=) 17.Nd5+= Nd5 (17...cd5 18.cb6 ab6 19.Rfd1+=) 18.b5 (18.cb6!? Nb6 19.Rac1+-) 18...bc5= (worse 18...Qc5 19.Rac1 Qb4 20.bc6 Qb3 21.ab3+-) 19.bc6 (better 19.Rac1=) 19...Rab8 (better 19...Nb4=) 20.Qd5+- Rb2 (better 20...Rd8 21.Qc4 Rb2+-) 21.Bc4 (better 21.Bg4 Rc7 22.Rab1+-) 21...Rb6= 22.Rad1 Rbc6 23.Rd2 (23.Qe4 R6c7=) 23...Rb6 (23...e4 24.Qd7 R6c7 25.Qe7 Re7 26.Rc1=+) 24.Rfd1= Rbb8 (24...Bf6 25.Qf3 Rc7 26.g3=) 25.Qd7 (25.Qf3 Rc7=) 25...Bf6 26.g3 Rd8 27.Qa4 (27.Qc6 Rd2 28.Rd2 Rb7=) 27...Rd2 28.Rd2 Rb4 29.Qa6 Rb1 (29...Kg7 30.a3 Rb7 31.Bd5=) 30.Kg2 Qb7 31.Qb7 (31.Rd5 Qa6 32.Ba6 Rc1=) 31...Rb7 32.Rd5 Rc7 33.Kf3 h5 (33...Kf8 34.Ke4=) 34.Rd6 Be7 (34...Kg7!?=) 35.Rg6+= Kh7 (35...Kf8 36.Rh6 h4 37.gh4+=) 36.Ra6 (worse 36.Bf7 Bd8 37.Be8 Re7–/+) 36...f6 (36...Kg7 37.Ke4+=) 37.Ke4 (37.h4 Rd7+=) 37...Kg6 (37...Kg7 38.h4+=) 38.h4 Rd7 (38...Kg7 39.a4+=) 39.a4 (39.Bb5 Rb7 40.Bc6 Rc7+=) 39...Bd8 (39...Rc7 40.Kd3+=) 40.Bb5 Rc7 (40...Re7 41.Kd5+-) 41.Kd5 Be7 42.Bc6 (42.Bd3 Kg7+=) 42...Kf5 43.f3 (43.Kc4 Kg4+=) 43...e4 44.Kc4 ef3 45.Bf3 Ke5 (45...Bf8 46.Bh5 Rg7 47.a5+=) 46.Bh5 Ke4? (better 46...f5+=) 47.Bg6+- Ke3 (47...Ke5 48.e4 Bf8 49.Bf5+-) 48.h5 Rd7? (48...Bf8 49.Re6 Kd2 50.Rf6 Rc8+-) 49.h6 Bf8 (49...Rd4 50.Kb5 Rb4 51.Kc6+-) 50.h7 Bg7 51.Bf5 Rc7 (51...Re7 52.Rc6 Re8 53.Rc7+-) 52.g4 (better 52.Re6 Kf3 53.Re8+-) 52...Kf4 (52...Re7 53.Rc6 Kf4 54.Kc5+-) 53.Ra5 Kg5 54.Rc5 Rc5 (54...Re7+-) 55.Kc5 Kh6 56.Kb5 1–0. Ider,Borya (2460) – Micottis,Dorian (2215), 6th Sautron France, Open, 2016. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.Be2 Nbd7 7.c4 e5 8.Nc3 Re8 9.de5 de5)

10.e4 a5 11.a3=.

10.e4 c6 11.0-0 Qe7 12.b5 (12.Qb3 Nf8 13.Rfd1 Bg4=) 12...Nh5 13.Re1 (13.Rb1 Nf4+=) 13...Nb6 (13...Nf4 14.Qc1+=) 14.Na4 (14.g3 Bg4=) 14...Bg4 (14...Nf4!?–/+) 15.Nb6 ab6 16.h3 Bf3 17.Bf3 Nf4 18.Qb3 Qg5 (18...Ne6 19.a4+=) 19.Kh2 Rad8 20.Rad1 Ne6 21.Bc1 Qf6 22.bc6 Nd4 (22...bc6 23.Qb6 Nd4 24.Rd3=) 23.Qb6 (23.Rd4 Rd4 24.cb7 Rb8+=) 23...bc6 24.Rd3 Qh4 25.Kg1 Rd6 (25...Ra8 26.a3=) 26.Bd1 Rf6 27.Be3 (27.Qb2 Bh6 28.Bh6 Qh6+=) 27...Rd6 (27...Qe4 28.Rd2 Bh6 29.a4=) 28.Ra3 (better is 28.Bd2+=) 28...f5?? (better is 28...Qe4 29.Ra7 Rdd8=) 29.Ra7+- Rde6 (29...Qe4 30.Qb7 Ne6 31.Qf7 Kh8 32.Qe8 Nf8 33.Rg7 Qg2 34.Kg2 Rf6 35.Qe7 f4 36.Qf6 f3 37.Bf3 Nd7 38.Rd7 Kg8 39.Qg7) 30.c5 (30.ef5 Nf5 31.Bc5 Bf8+-) 30...Kh8? (better is 30...Qe4 31.Rd7 R6e7+/-) 31.ef5+- gf5 (better is 31...Nf5 32.Bg4 Rf8+-) 32.Bd4 Qd4 33.Bb3 Rg6 (33...Rh6 34.Rd1 Qc3+-) 34.Bf7 Qd2 35.Rf1 (35.Be8?! Qe1 36.Kh2 Bh6 37.Rh7 Kh7 38.Bg6 Kg6 39.Qc6 Kg7 40.Qb7 Kg8 41.Qc8 Kg7 42.Qb7 Kg8 43.Qc8 Kg7 44.Qb7=) 35...Qg5 36.Bg6 Qg6 37.Rd7 (better is 37.Rd1 Qh6 38.Qb1 Bf8+-) 37...Bf6 (37...e4+-) 38.Qc6 Rg8 (38...f4 39.Re1 h6 40.Rd6+-) 39.Rd6 (better is 39.Rb1 e4 40.g3 e3+-) 39...e4 40.g3 Rf8 (40...e3 41.g4 (worse is 41.Rf6 ef2 42.Kf2 Qg3 43.Ke2 Qe5 44.Kd3 Rg3 45.Rf3 Rf3 46.Qf3 Qf6+-) 41...e2 42.Re1+- (42.Rf6?! Qh5 43.Qf3 fg4+=)) 41.Rfd1 (41.Re1 h5+-) 41...e3 (41...f4 42.Rf6! Rf6 43.Rd8 Kg7 44.Rd7 Rf7 45.Qg6 Kg6 46.Rf7 Kf7 47.a4+-) 42.Qf3 f4 ½–½. Tagirov,Kajum K (1920) – Jangurazov,Albert, Memorial Siamidi, 2008.

10.e4 Qe7 11.c5 a5=.

9.0-0 f5 10.de5 de5 11.e4 c6 12.c5 Qe7 13.Qb3 Kh8 14.Rad1 (14.ef5 gf5 15.Rfd1 Nc7+=) 14...a5= 15.a3 b6 (15...ab4 16.ab4 b6 17.ef5 gf5 18.cb6 Nb6 19.Nb1=) 16.cb6+= ab4 17.Na4 (17.b7 Bb7 18.Qb4 Qb4 19.ab4 Nef6+=) 17...Nef6 (17...fe4 18.Nd2=) 18.Nd2 (18.ef5 gf5 19.ab4 Nd5+-) 18...fe4 19.ab4 Nd5 20.Ne4 N7b6 21.Nb6 Nb6 22.Nc5 Qg5 (22...Rb8!? 23.Bf3 Nd7 24.Nd7 Bd7+-) 23.Bf3 Bg4 24.Bg4 (24.Bc6?! Bd1 25.Rd1 Qh4=) 24...Qg4 25.Ne6 Nd5 (25...Qc4!? 26.Qc4 Nc4 27.Nf8 Nb2+-) 26.Nf8+- Rf8 27.Qg3 (27.f3 Qb4 28.Qb4 Nb4+-) 27...Qg3+- 28.fg3 (28.hg3 Rb8 29.Rfe1 Rb4 30.Be5 Be5 31.Re5 Kg7+-) 28...Rf1 29.Rf1 Nb4 30.Rd1 Bf6 31.Rd7 Kg8 32.Kf1 c5 33.Ke2 Nc6?? (better 33...Nc2+-) 34.Rd6+- 1–0. Voloshin,Leonid (2430) – Siwiec,Arkadiusz (2065), XVI Lasker Mem Open A, Barlinek Poland, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Nc3 e5 8.Be2 Ne8)

9.0-0 Nef6+=.

9.Qb3 a5 10.b5 Kh8 (10...Nef6 11.0-0+=) 11.h4 (11.0-0 Nef6+-) 11...Nef6 (11...ed4 12.Nd4 h5 13.Rd1+=) 12.Ng5 (12.de5 Ne5 13.Ne5 de5+-) 12...c6 (12...h6 13.Nf3=) 13.a4 (13.0-0 h6 14.Nf3 Re8+-) 13...Kg8 (better 13...ed4 14.ed4 c5+=) 14.0-0-0 (better 14.0-0+=) 14...ed4=+ 15.ed4 cb5 (15...h6 16.Nge4 Ne4 17.Ne4 cb5 18.Nd6–/+) 16.Nb5 (16.Qb5 h6 17.Nge4 Ne4 18.Ne4=+) 16...d5 (16...h6 A) worse 17.Nd6 Qe7 (worse 17...hg5 18.hg5 Nh5 19.Qe3=) 18.Ngf7 A1) 18...Rf7? 19.c5 Nf8 20.Bc4+- (20.Nf7?! Be6 21.Bc4 Bc4 22.Qc4 Qf7 23.Qf7 Kf7+-); A2) 18...Qe2–/+; B) 17.Nf7 Rf7 18.Nd6+=) 17.c5 (17.cd5 Ra6 18.Ba3 h6+-) 17...Nb8 (17...h6 18.Nh3 Ne4 19.Qd5 Qh4 20.Qb3+=) 18.Kb1 (18.Nd6 Nc6+=) 18...Nc6 (better 18...h6 19.Nf3 Bf5 20.Bd3 Bd3 21.Rd3 Ne4=) 19.Qg3 (19.Nd6 h6 20.Nf3 Nb4=) 19...Nb4 (better 19...h6!? 20.Nh3 Bf5 21.Bd3 Ne4 22.Be4 Be4 (22...de4?! 23.Nf4=+) 23.Ka1 Nb4-+) 20.Nd6=+ Bd7 (20...h6 21.h5 (21.Nc8? Rc8 22.Nh3 b6-+) 21...hg5 22.h6=) 21.Bb5 (21.h5!?+-) 21...b6 (21...h6!? 22.Ngf7 Rf7 23.Qg6 Rf8–/+) 22.Rc1 (22.Rhe1 h6 23.Ngf7 Rf7 24.Qg6 Rf8=) 22...bc5 23.dc5 Ne4 24.Nge4 Bb2 25.Kb2 de4 26.Ka3 (26.Qg5 Bb5 27.ab5 Nd3 28.Ka3 Nf2=) 26...Bc6 (26...Be6!?=) 27.h5+= Qf6 (27...Bd5!? 28.Qc3 Qg5+=) 28.hg6 (28.Bc6 Nc6 29.hg6 fg6 30.Qb3 Kg7 31.Qb7 Ne7 32.Ne4 Qe5+-) 28...hg6 (28...fg6 29.Bc6 Qe6 30.Qb3 Qb3 31.Kb3 Nc6 32.Ne4 Rab8 33.Kc3+=) 29.Qh4 (better 29.Bc6!? Nc6 30.Ne4+-) 29...Qh4+= 30.Rh4 Nd3? (better 30...f5+=) 31.Bc6+- Nc1 32.Ba8 Ra8 33.Re4 Kf8 (33...f5 34.Rc4 Nd3+-) 34.c6 Rb8 (34...f5 35.Re6 Ra7+-) 35.Re3 Rb6 36.c7 (36.c7 Rc6 37.c8R Rc8 38.Nc8+-) 1–0. Agrest,Roman (2000) – Nystroem,Ragnar (2035), SWE–ch Veteran, 2003.

9.de5 de5 10.c5 (10.e4 a5 11.b5 Qe7+=) 10...c6 (10...a5 11.Qa4+=) 11.Ne4 (11.0-0+=) 11...f5 (11...Nef6 12.Nd6 Nd5 13.a3+=) 12.Qb3 (better 12.Neg5!? Qf6 13.Qb3 Kh8 14.Bc4+-) 12...Kh8= 13.0-0?? (better 13.Neg5 e4 14.Ne6 Nc5 15.Bg7 (15.Nd8? Nb3 16.Bg7 Ng7-+; 15.Nc5?! ef3 16.Bf3 f4+=) 15...Ng7 16.Nc5 (16.Nd8? Nb3 17.Rd1 ef3-+) 16...ef3 17.Bf3+=) 13...Ndf6?? (better 13...fe4 14.Ne1 a5-+) 14.Nf6+- Nf6 15.Be5 Qe7? (better 15...Qe8+-) 16.Bd6 Be6 (16...Qe8 17.Bf8 Qf8+-) 17.Be7 (17.Be7 Bb3 18.Bf8 Bf8 19.ab3+-) 1–0. GuestWMQY – GuestLGJL, freechess.org, 2018.

9.de5 Ne5 10.Ne5 Be5 11.0-0=.

9.Nbd2 Nd2 10.Qd2 f5 11.h4 Nf6 12.Qc2 a5 13.a3 ab4 14.ab4 Ra1 15.Ba1 Bd7 16.0-0 Qe7 17.g3 f4 18.ef4 ef4 19.Re1 (better is 19.Bd3!?=) 19...fg3–/+ 20.fg3 (better is 20.Bd3 gf2 21.Qf2–/+) 20...Qe3-+ 21.Kg2? (21.Kh1 Bg4 22.Rf1-+) 21…Ne4 (21...Ne4 22.Bd1 Rf3 23.Re3 Re3=) 0–1. Kievelitz,Bernd (1965) – Huhs,Sven (1860), Berlin op, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5)

9.Nfd2 Nd2 10.Nd2 f5 (10...Nb6 11.0-0=) 11.h4 h5 12.Qc2 (12.Nf3 e4 13.Nd4 Qe7=) 12...Nf6 (12...a5 13.a3+=) 13.Nb3 Kh7 (13...Bd7 14.g3=) 14.a4 (14.0-0 Bd7=) 14...Bd7 (14...Ng4 15.Na5+=) 15.a5 (15.0-0 Ng4 16.g3 f4 17.ef4 ef4 18.Bg4 Bg4 19.Bg7 Kg7 20.Qc3 Qf6 21.Qf6 Kf6=) 15...c6 (15...Ng4 16.a6 ba6 17.Qc3=) 16.dc6 Bc6 17.Bf3 (17.f3 Qc7=) 17...Bf3+= 18.gf3 Rc8 19.Nd2 Qe7 20.Qd3 Rfd8 21.Kf1 b6 22.ab6 ab6 23.e4 fe4 24.fe4 b5 (24...Bh6 25.Ke2–/+) 25.cb5 (25.Kg2 bc4 26.Nc4 d5 27.Ne5 Ne4–/+) 25...d5+= 26.Qb3? (better is 26.Nf3+=) 26...de4-+ 27.Nc4?? (27.Rc1 Rc1 28.Bc1-+) 27...Ng4 28.Rg1 Qf7 29.Rg4 hg4 (29...Qc4?! 30.Qc4 Rc4 31.Rg5+=) 30.Na5 Qf6 (30...Qf6 31.Qg3 Rd2-+) 0–1. Nadanian,Ashot (2335) – Maherramzade,Javad (2295), Tbilisi, 1995.

9.0-0 e4 10.Nd4 Re8 11.a3 Ne5 12.h3 Qe7 13.c5 g5 14.Nd2 g4 15.hg4 Neg4 16.Nc4 h5 (16...Rd8 17.Qc2=) 17.Qb3 Nh7 18.f3 ef3 19.Bf3 (19.Rf3 Qh4 20.Bd1 Ng5-+) 19...Nhf6 (19...Ng5!?=) 20.Rae1+= Rb8 21.e4 Be6 22.Ne6 fe6 23.Ne3 Ne3 24.Qe3 Ng4 25.Bg4 hg4 26.Bg7 Qg7 27.e5 Rf8 28.g3 (28.c6!? b6 29.Rd1+/-) 28...Rf1+= 29.Rf1 Rf8 30.Rf8 Kf8 31.Qe4 Ke7 32.Kg2 (32.Kf2 c6+=) 32...Qg5= 33.Qh7 Ke8 34.Qh8 Kd7 35.Qh7 Kc8 36.Qh8 Kd7 37.Qh7 Kc8 38.Qh8 Kd7 39.Qh7 Kc8 40.Qh8 Kd7 41.Qh7 ½–½. Bove Quist,Viggo (2200) – Scheeren,Peter (2455), Silkeborg, 1983. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

9.0-0 Qe7 10.a3 e4 11.Nfd2 Ne5 (11...c5 12.Qc2=) 12.Qc2 Bf5 13.Rd1 (13.Nc3 a5=) 13...Rfe8 (13...a5 14.Qb3=) 14.Nf1 (14.Bd4 Nc6 15.Bc3 Red8=) 14...c6 (14...a5 15.b5=) 15.Ng3 Nfg4 (15...Bg4 16.Bg4 Nfg4 17.Ne4 (worse 17.Qe4 Nf2 18.Kf2 f5-+) 17...Nc4 18.Bg7 Qe4 19.Qe4 Re4 20.Bc3+=) 16.Nf5 (16.Bd4 a5 17.Nf5 gf5+-) 16...gf5+- 17.Bg4 (17.h3 Nf6+=) 17...Ng4+= 18.Bg7 Kg7 19.h3 (19.Nd2 Qe5 20.Nf1 a5+=) 19...Ne5 (19...Qe5 20.Nc3 (worse 20.hg4 Qa1 21.gf5 Rad8–/+) 20...Qh2 21.Kf1=+) 20.Nd2+= Qg5 21.c5 Rg8 (21...Re6 22.Nc4=) 22.Nf1 (22.Nc4 Nf3 23.Kf1 Nh2 24.Ke2 Qh5 (24...Qg2?? 25.Rg1 Kf8 26.Rg2 Rg2 27.Qd1+-) 25.Kd2 Kf8+=) 22...Kh8 (22...Nd3 23.Ng3=) 23.Ng3 Nd3 (23...h5 24.Qb2 Rae8 25.Qe2=) 24.Qe2 (24.Rd3 ed3 25.Qd3 f4 26.Qd4 Qg7 27.Qg7 Kg7 28.ef4 a5+=) 24...Rg6 (24...a5 25.Kh2=) 25.Qh5 (better 25.Rd3!? ed3 26.Qd3+=) 25...Rag8=+ 26.Qg5 Rg5 27.h4 Rg4 28.Ra2 h6 29.Kf1 Kh7 (29...Rh4 30.Rad2=+) 30.Nf5 (30.Nh5 Kg6 31.Nf4 Nf4 32.ef4 Rf4 33.Rd6 f6–/+) 30...Rg2 31.Nd6 Nc1!? The mate threat is Rg1 32.Rc1 Rg1 Theme: Double Attack 33.Ke2 Rc1 34.Ne4 Rgg1 (34...Rd8 35.Nd6 Rd7 36.Rd2=) 35.Nd6 b6 36.cb6 (36.Nf7 bc5 37.Ne5 Kg7=) 36...ab6 37.Nf7 Ra1 (37...Rh1 38.Rd2=) 38.Rd2 (38.Rc2 Ra3 39.Rc6 b5+=) 38...Rge1 (38...Ra3!? 39.Ne5 c5 40.bc5 bc5=) 39.Kf3= Red1 (39...Ra3 40.Rd7 c5 41.bc5 bc5 42.Ng5 Kg8 43.Rd8 Kg7 44.Ne6 Kg6 45.Nc5+=) 40.Rc2 (40.Rd1 Rd1 41.Ne5 Ra1+-) 40...Rac1+= 41.Ra2 (41.Rc1 Rc1 42.Ne5 c5+=) 41...Ra1 (41...c5 42.Ne5=) 42.Rc2 (42.Ra1 Ra1 43.Ne5 c5 44.bc5 bc5=) 42...Rdc1 (42...Rac1 43.Rc1 Rc1 44.Ne5+=) 43.Rd2 (43.Rc1 Rc1 44.Ne5 c5+=) 43...Rd1 (43...Ra3 44.Ne5=) 44.Rc2 (44.Rd1 Rd1 45.Ne5 Ra1+-) 44...Rac1+= 45.Ra2 (45.Rc1 Rc1 46.Ne5 c5+=) 45...Kg6 (45...Ra1 46.Ra1 Ra1 47.Ne5+=) 46.Ne5 Kf5 (46...Kh5 47.Kg3+=) 47.Ng4+= h5 48.e4 Ke6 49.Ne3 Ra1 (49...Rh1!?=+) 50.Rc2+= (worse 50.Nd1 Ra2 51.Kf4 Ra3–/+) 50...Rdc1 51.Rd2 (51.Ke2 Rc2 52.Nc2 Rh1=+) 51...Ra3=+ 52.Kf4 Rb3 (52...Ra4 53.b5=+) 53.Nf5 Rb4 54.Ng7 (54.Rd6!? Kf7 55.Rh6=) 54...Ke7 55.Nh5 Rh1 56.Ng3 (better 56.Kf5!? c5 57.Nf6=) 56...Rh4–/+ 57.Kg5 Rhe4 (57...Rh2 58.Nf5 Kf7 59.Kf4–/+) 58.Ne4 Re4 59.f4 Re1 60.f5 Rg1 61.Kf4 b5 (61...Rf1 62.Ke5–/+) 62.Rh2 (62.Re2 Kd7=+) 62...b4 (62...c5 63.Re2 Kf7 64.Re6–/+) 63.Rh6 (63.Re2 Kf7–/+) 63...b3 64.Rh7 Kd6 (64...Kf6 65.Rb7 Rb1 66.Ke4-+) 65.Rb7 Rb1 66.f6 (better 66.Ke4–/+) 66...Kc5 (66...Rf1 67.Ke3-+) 67.Ke3 (better 67.f7!? Rf1 68.Ke5=) 67...Kc4 (67...Rf1 68.f7–/+) 68.Ke2 Ra1 69.f7 Ra8 70.Kd2 c5 (better 70...Rd8!? 71.Ke3 c5-+) 71.Re7= Rd8 (71...Rf8 72.Re4 Kd5 73.Rf4=) 72.Kc1 Rf8 73.Kb2 Kb4 74.Rb7 Kc4 75.Rd7 (75.Re7!?=) 75...Rh8=+ 76.Rd2 Kb4 77.Rf2 Rf8 78.Rf6 (78.Rf4 c4=) 78...c4 79.Rf4 Kc5 80.Kc3 ½–½. Schulze,Harald – Muenster,Erich, Bayern, 1995.

9.0-0 Qe7 10.a3 e4 11.Nd4 Rd8 12.c5 Nf8 13.Nd2 h5 14.Qc2 N8h7 15.Nc4 Bg4 16.Na5 Rab8 17.Rad1 Re8 18.Rd2 Ng5 19.Rfd1 Be2 20.Ne2 Qe6 21.Nf4 Qg4 22.h3 Qh4 23.Bf6 Bf6 24.Qc4 Kg7 25.Rd7 Be5 26.g3 Nh3 27.Kg2 Qf6 28.Qe4?? (better is 28.Kh3 Qf5 29.Kg2+-) 28...Ng5 (better is 28...Bf4!? 29.Qf3 Nf2 30.Qf2 Be5=) 29.Qd3+= h4 30.Nc4 hg3 31.fg3 b5 32.cb6 cb6 33.a4 Bf4 34.gf4 Ne4 35.Qd4 Rbc8 36.Qf6 Nf6 37.Nd6 Nd7 38.Ne8 Re8 39.Rd7 Re3 40.Ra7 Kh6?? 41.Rf7+/- Ra3 42.Rf6 Kh5 43.Rb6 Kh4? 44.Rg6 Rb3 45.f5 Rb4 46.Kf3 Kh5 47.Rg8 Kh6 48.Ke3 Kh7?! 49.Rg1 Ra4 50.f6?? Ra6= 51.Rg7 Kh6 52.Ke4 Rf6 ½–½. Krnic,Zdenko (2420) – Podgaets,Mikhail (2480), Wijk aan Zee op, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5 de5)

9.0-0 Qe7 10.c5 a5 11.Qa4 e4=.

9.Ne5 Ne4 10.Qc2 Ne5-+ 11.Qe4? (11.0-0 Bf5 12.g4 Ng4 13.Bg4-+) 11...Nf3!! 12.Bf3 (12.Bf3 Bb2 Discovered attack; 12.Qf3 Bb2 Discovered attack; 12.gf3 Bb2 Discovered attack) 12...Bb2 13.0-0 Ba1 14.Nc3 (14.Rd1 Qf6 15.Nd2-+) 14...Bc3 0–1. Goldmund,Heike – Joubert,Hennie, FICGS, 2017.

9.Ne5 Ne4 10.Nd2!? Nd2 11.Nf7 Rf7 12.Qd2 Bb2 13.Qb2–/+.

9.Ne5 Ne4 10.Nd3 Bb2 11.Nb2 Qf6 12.Qd4 Qf2 13.Kd1 Qg2 14.Rf1 c5 15.bc5 Ndc5 16.Ke1 (16.Nd2 Bg4 17.Bg4 Qg4 18.Kc2 Rad8-+) 16...Bg4 17.Bg4 Qg4 (better 17...Rfd8 18.Qc5 Nc5 19.Be2-+) 18.Nc3 Qh4 19.Kd1 Nc3 20.Qc3 Qh2 (better 20...Rad8 21.Kc1 Qh2-+) 21.Ke1 (21.Kc1 Rad8 22.Qc2-+) 21...Ne4 22.Qb4 a5 (22...a5 23.Qf8 Rf8-+) 0–1. Babo,Miguel (1870) – Hortensius,Lisa (2155), 29th Open, 2013. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.c4 d6 6.Bb2 Nbd7 7.Be2 e5 8.de5 de5)

9.Ne5 Ne4 10.Nd3 Bb2-+ 11.Nb2 Qf6 12.Qd4 Qf2 13.Kd1 Qg2 14.Rf1 c5 15.Qd5 0–1. Ossa,O (2300) – Valdes,Le (2400), zt, 2009.

9.Ne5 Ne4 10.Nd7 Bb2 11.Nf8 Qd1 12.Kd1 Ba1-+.

9.Ne5 Ne4!? 10.Nd7 Bb2 11.Nf8 Qf8-+.

9.Ne5 Ne5 10.Qd8 Rd8 11.Be5 c6 12.0-0 Be6 13.c5 Rd5 14.Bd6 Ne4 15.Bc4 Ba1 16.Bd5 Bd5 17.Na3 Bb2 18.Nc2 Ba2 19.f3 Nd2 20.Rd1 Nc4 21.e4 Bb3 22.Rb1 Bc2 0–1. Chess4Win (1685) – MyNaughtyKnight (1705), lichess.org, 2019.

9.Ne5 Nh5?? 10.f4?? (10.Nd3 Nhf6+/-) 10...Ne5?? (10...Qh4 11.g3 Ng3–/+) 11.fe5?? (better is 11.Qd8 Rd8 12.fe5+/-) 11...Qh4-+ 12.Kf1 Be6 (12...Ng3 13.Kg1 Rd8 14.Qd8 Qd8 15.hg3-+) 13.Nc3? (13.Qe1 Qg5=) 13...Bc4 (13...Ng3 14.Kg1 Nh1 15.Qd4–/+) 14.Bc4 (better is 14.Qd4!? Be2 15.Ne2+=) 14...Qc4-+ 15.Qe2 Be5?? (better is 15...Qb4 16.Nd5 Qh4–/+) 16.Qc4+- 1–0. polynesia46 (1690) – carocan (1685), kurnik, 2011.

9.Be5 de5 10.0-0 Qe7+=.

9.Ne5 de5 10.Qd8 Rd8 11.0-0 e4 12.Nc3? (12.Be5 a5 13.b5 Bg4 14.Bg4 Ng4 15.Bg7 Kg7+=) 12...Be6?? (better is 12...Rd2 13.Rab1 Nd7-+) 13.Rad1 c6 14.a3 Nd7 15.Rd2 f5 16.Rfd1+= Bf6 17.Na4 Ne5?? 18.Be5 Rd2= 19.Rd2 Be5 20.Nb2 Kf7 21.c5 Ke7 22.Bc4? Bb2-+ 23.Rb2 Rd8 24.Bf1? Rd1-+ 25.Rc2? Bc4 26.Rc4+- 1–0. Fournier,Frederic – atolya, Active (5/0), 2005.

9.Ne5 de5 10.Qd8 Rd8 11.Be5!? c5 12.a3+/-.

9.Ne5 de5 10.Qd8 Rd8 11.Be5 c6 12.0-0 Bf5 13.a4 Re8 14.Bb2 a6 15.Nc3 Rad8 16.Rab1 Rd2 17.Rfd1 Bb1 18.Rd2 Bf5 19.Nd1 h5 20.Bf3 Be6 21.c5 Bb3 22.Be2 Ba4 23.Nc3 Bb3 24.g3 Ne4 25.Ne4 Re4 26.Bg7 Kg7 27.Bd3 Rb4 28.Rb2 a5 29.Kf1 Bc4 30.Rb4 Bd3 31.Ke1 ab4 32.Kd2 Bb5 33.Kc2 Bc4 34.Kb2 Kf6 35.f3 Ke5 36.e4 Kd4 37.Kc2 Kc5 38.e5 Kd4 39.f4 Ke3 40.h3 Kf2 41.g4 hg4 42.hg4 Kf3 43.f5 gf5 44.gf5 Ke4 45.e6 fe6 46.f6 e5 47.Kd2 Bf7 48.Kc2 Kd4 49.Kb2 e4 50.Kc2 e3 51.Kd1 b3 52.Kc1 Kd3 53.Kd1 e2 54.Ke1 b2 55.Kf2 b1Q 0–1. Chess4Win (1700) – gigi_DAN (1690), lichess.org, 2020.

9.Ne5 de5 10.Qd8 Rd8 11.Be5 Bf5 12.Nd2 Ne4 13.Bg7 Nd2 14.Bf6 Rd7 15.Bc3 Ne4 16.Bd4 b6 17.0-0 c5 18.bc5 bc5 19.Bb2 Rb8 20.Be5 Re8 21.Rfd1 Rd1 22.Rd1 Re5 23.Bf3 Kg7 24.h3 Nc3 25.Rc1 Na2 26.Ra1 Nb4 27.Ra7 Be6 28.Be2 Bf5 29.Bf3 Be4 30.Rb7 Bf3 31.gf3 Re6 32.Rc7 Nd3 33.Kf1 Rd6 34.Ke2 h5 35.h4 Kf6 36.f4 Ke6 37.e4 Nf4 38.Kf3 Nd3 39.Ke3 Rd7 40.Rc6 Rd6 41.Rc7 f6 42.Rg7 g5 43.hg5 fg5 44.Rg5 h4 45.Rh5 Ne1 46.Ke2 Ng2 47.Kf1 Ne3 48.fe3 Rd1 49.Ke2 Rd2 0–1. michalakmarek – pistosyf, kurnik, 2012.

9.Ne5 de5 10.Be5?! Qe7 11.Bc3 Ne4 12.Bg7 Qb4 13.Bc3 Nc3 14.Nc3 Qc3 15.Kf1 Be6 16.Rc1 Qf6 17.f3 Rfd8 18.Qb3 b6 19.Kf2 Rd2 20.Rhd1 Rad8 21.Rd2 Rd2 22.Rd1 Qb2 23.Rd2 Qd2 24.Qd3 Qa2 25.Qd8 Kg7 26.Qc7 a5 27.Qb6 a4 28.Qd4 Kg8 29.Qd3 a3 30.Kg3 Qb2 31.Qd8 Kg7 32.Qd4 Qd4 33.ed4 a2 0–1. Chess4Win (1705) – deusxmachina (1710), lichess.org, 2020.

9.Ne5 de5 10.Be5?! Qe7 11.Bc3 Ne4 12.Bg7 Qb4 13.Kf1 Kg7 14.Qd4 Nf6+=.

9.0-0 a5 10.a3 Nge5 11.Ne5 Ne5 12.Nc3 Be6 13.Qb3 a4 14.Na4 b5 15.Nc3 (15.cb5 Bb3 Pinning (15...Bb3 Deflection)) 15...Nc4 16.Qc2 Nb2 17.Qb2 c6 18.Qd2 Qe7 19.Rfb1 Ra7 20.Bb5? (better is 20.a4 ba4 21.Ra4 Ra4 22.Na4+=) 20…Bc3-+ (20...Bc3 21.Qc3 cb5-+) 0–1. Wecke,Thoralf (1780) – Spiess,Gunter (2405), Leipzig VfB op, 2003. (=1.d4 Nf6 2.c4 d6 3.Nf3 g6 4.b4 Bg7 5.Bb2 0-0 6.e3 Nbd7 7.Be2 e5 8.de5 Ng4)

9.0-0 Re8 10.Nc3 de5 11.h3 Nh6 12.Qb3 e4 13.Nd4 c6 14.c5 Qe7 15.a4 Kh8 16.Rac1 f5 17.b5 Ne5 18.bc6 bc6 19.Rfd1 Nhf7 20.Bc4 Nc4 21.Qc4 Ne5 22.Qa2 Ba6 23.Ncb5 cb5 24.ab5 Nd3 25.Nc6 Nc1 26.Qa6 Ne2 27.Kf1 Qc5 28.Bg7 Kg7 29.Qb7 Kh6 30.Ke2 Qb6 31.Rd7 Qb7 32.Rb7 Rec8 33.Na7 Rc2 34.Ke1 Rb2 35.b6 g5 36.g3 Kg6 37.h4 h6 38.hg5 hg5 39.Kd1 Rh8 40.Kc1 Rf2 41.Rd7 Rh1 42.Rd1 Rd1 43.Kd1 Rb2 44.Nc8 Kf6 45.Kc1 Rb5 46.Kd2 Ke6 47.Na7 Rb6 48.Kc3 Kd5 49.Kd2 Kc4 50.Kc2 Ra6 51.Nc8 Ra2 52.Kb1 Re2 53.Nd6 Kd3 54.Nf5 Re3 55.g4 Re2 56.Kc1 Re1 57.Kb2 e3 58.Nd6 e2 0–1. Ebert – Wolf, 1996.

9.Qb3 Nde5 10.Nbd2 a5 11.h3 Nf3 12.Nf3 Bb2 13.Qb2 (13.hg4?? Ba1 14.ba5 Bg4 15.Qb7 Bc3 16.Kd1 Rb8-+) 13...Qf6 14.Qd4 Ne5 15.b5 b6 16.Ne5 de5 17.Qc3 Bb7 18.0-0 Qg5 19.g3 Rad8 20.Rfd1 h5 21.Bf1 Bf3 22.Rd8 Rd8 23.c5 h4 24.cb6 cb6 25.g4 Qf6 26.Bg2 Rd5 27.e4 Rd1 28.Rd1 Bd1 29.Qd3 Ba4 30.Qc4 ½–½. Fohler,Claus – Niederbuehl,Andreas, Untergrombach op, 1990. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

9.Qb3 Nge5 10.0-0 Nf3 11.Bf3 Ne5 12.Be2 a5 13.b5 Bf5 14.a4 Qh4 15.Nd2 b6 16.Nf3 Nf3 17.Bf3 Bb2 18.Qb2 Rae8 19.Rfd1 Re5 (worse 19...Qc4 20.Rd4 Qc2 21.Qc2 Bc2 22.Rc1+-) 20.Rd4 Qe7 21.Rd5 Re8 22.Rad1 Be4 23.Re5 Qe5 24.Qe5 Re5 (24...de5?? 25.Be4 f5 26.Bc6+-) 25.Be4 Re4 26.Rd4 Re5 27.Kf1 f5 28.Ke2 Kf7 29.Rd5 Ke6 30.Rd4 Kf6 31.Kd3 h6 32.h3 g5 33.Kc3 Re7 34.Kd3 h5 35.f3 Re5 36.g3 Re7 37.Rd5 Re6 ½-½. Nabaa,Sami Abbas Al_Attra (1820) - Boshra,Alshaeby (2015), Emirates ch-Arab w, 2018. (=1.Nf3 (E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3) 1...g6 2.e3 Bg7 3.c4 Nf6 4.d4 0-0 5.b4 d6 6.Bb2 Nbd7 7.Be2 e5 8.de5)

9.Qc2 Nde5 10.Ne5 Ne5 11.Nd2 a5 12.b5 Qg5 13.g3 Qe7 14.h3 Re8 15.Bf1 Bf5 16.e4 Nf3 17.Kd1 Bb2 18.Qb2 Be4 19.Ne4 Qe4 20.Bg2 Qd3 21.Kc1 Re2 22.Qb3 Qd2 23.Kb1 Nd4 24.Qd1 Qb2 0–1. Tagirov,Kajum – Shamin,Alexey, Russia, 1999.

9.Nbd2 Nde5 10.Ne5 Ne5 11.Rb1 Be6 12.h4 h5 13.f4 Ng4 14.Qb3 Bb2 15.Rb2 Qe7 16.Bg4 Bg4 (worse is 16...hg4 17.h5=) 17.Qc3 Rfe8 18.Kf2 Rad8 19.Nf3 Bf3 20.Kf3 d5 21.cd5 Qe4 22.Kf2 Rd5 23.Rd2 Rd2 24.Qd2 Qe7 25.a3 Rd8 26.Qc2 a5 27.Qc3 ab4 28.ab4 c6 29.g3 Qe6 30.Re1 Ra8 31.e4 Ra2 32.Ke3 Qg4 33.Kd4 Rg2 34.Re3 Qd7 35.Kc4 Rd2 36.Rd3?? b5 (36...b5 37.Kc5 Rd3-+) 0–1. Muehle,Hans Bernd (2005) – Rothe,Guido (2245), Dresden ZMD op, 2004. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.e3 Nbd7 7.Be2 e5 8.de5 Ng4)

9.Nbd2 Nge5 10.Qb3 a5 11.Ne5 de5 12.a3 Qe7 13.c5 Nf6 14.Nc4 a4 15.Qa2 Be6 16.Rc1 e4 17.Qa1 h5 18.0-0 Bg4 (18...Rad8 19.Qb1+=) 19.Rc2 (19.Bg4!? hg4 20.c6+/-) 19...Be2= 20.Re2 Qe6 21.Nd2 Ne8 22.f3 ef3 23.gf3 Bb2 24.Qb2 Rd8 25.Ne4 Rd3 26.Rfe1 Qb3 27.Qe5 (better is 27.Qb3!? Rb3 28.Ra2=) 27...Qa3+= 28.Rg2 (28.Rb1!?+=) 28...Qb4–/+ 29.Ree2 (29.Kf2!?–/+) 29...Rd1-+ 30.Kf2 Qb1 31.Kg3 Rg1 32.Kh3 Rg2 33.Rg2 Qf1 34.Ng5 Ng7 35.e4 Qc4 (35...f6 36.Qd5 Kh8 37.Nf7 Rf7 38.e5-+) 36.Qf6 a3 37.Rd2 (37.Rg1 Qc5 38.Rd1 Qc6-+) 37...Ne6 (better is 37...Qf1 38.Kg3 Qe1 39.Rf2 a2-+) 38.Kh4 (38.Ne6 Qe6 (38...fe6?? 39.Qg6 Kh8 40.Qh5 Kg7 41.Rd7 Rf7 42.Rf7 Kg8 43.Qh7#) 39.Qe6 fe6-+) 38...Ng5 39.Kg5 Qe6 (39...Qc5 40.Kh6 Qg5 41.Qg5 h4 42.Qf6 Ra8 43.Qg7#) 0–1. Romero Holmes,Alfonso – Reyes,Juan, Palma de Mallorca, 1992. (=1.Nf3 Nf6 2.b4 g6 3.e3 Bg7 4.d4 0-0 5.c4 d6 6.Bb2 Nbd7 7.Be2 e5 8.de5)

9.Nbd2 Nge5 10.Qb3 a5 11.0-0 a4 12.Qc3?? (better is 12.Qc2+=) 12…Nf3-+ (12...Nf3 13.Nf3 Bc3 14.Bc3 Qe7-+) 0–1. Miljanovic,Zeljko (1915) – Grguric,Dragan (2110), Porec CC–ch, 2009.

11.Qb3 Qe7 12.Nd2 a5 13.ba5 Ra5 14.f4 Nc6 15.Bg7 Kg7 16.Bf3 Ra6 17.Qc3 (17.Rae1 Re8=) 17...Qf6 (17...f6 18.Bc6 Rc6 19.e4=) 18.Qf6 Kf6 19.Ne4 (19.c5 Ke7=) 19...Kg7 20.Nc3 Na5 21.Nb5 (21.Rfc1 Re8=) 21...Nc4=+ 22.Nc7 Ra3 (22...Ne3 23.Na6 Nf1 24.Nc7=) 23.Rfd1= Rd8 (23...Ne3 24.Rd6 Nc2 25.Rb1=) 24.e4+= Rd7 (24...Bd7 25.Be2 Rc8 26.Bc4 Rc7 27.Bd5=) 25.Ne8 (25.Nb5 Ra5 26.a4 b6+-) 25...Kf8+= 26.Nf6 Rc7 (26...Rd8 27.Be2 (worse 27.Nh7 Kg7–/+) 27...Ne3 28.Rd3 (worse 28.Nh7 Kg7 29.Ng5 Nd1 30.Bd1 f6–/+) 28...Rd3 29.Bd3+=) 27.Rac1+- (worse 27.Nh7 Kg7 28.Ng5 f6–/+) 27...Ra2 (27...b5 28.e5 (worse 28.Nh7 Kg7–/+) 28...de5 29.fe5+-) 28.e5 d5? (better 28...de5 29.fe5 Rc5 30.Rd8 Kg7+-) 29.Bd5+- (29.Nh7?! Ke7+-; 29.Nd5?! Rc5 30.Nb6 Be6+-; 29.Rd5?! Ke7+-) 29...Be6 (29...Ra4 30.Bf3 Ne5 31.Rc7 Nf3 32.gf3 Be6 33.Nh7 Kg7+-) 30.Bc4 Rc4 (30...Ra8 31.Nh7 Ke7 32.Be6 Rc1 33.Rc1 Ke6 34.Rc7+-) 31.Rc4 Bc4 (31...Rg2 32.Kg2 Bc4 33.Rd8 Kg7 34.Rg8 Kh6 35.Ng4 Kh5+-) 32.Rd8 (32.Nh7?! Ke7+-) 32...Kg7 33.Rg8 Kh6 34.g4 (34.g4 Ra1 35.Kf2 Rf1 36.Kg3 Rg1 37.Kh4 b5 38.g5 Rg5 39.fg5) 1–0. Gemy,Jose Daniel (2405) – Terry,Renato (2465), 2. Zicosur Open, 2016. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.de5 Ng4 9.0-0 Nde5 10.Ne5 Ne5)

11.Qb3 Qh4 12.Nc3 Be6 13.Nd5 Rac8 14.f4 Nd7 15.Bg7 Kg7 16.Qc3 Kg8 17.g3 Qd8 18.e4 c6 19.Ne3 f6 20.Rad1 Qe7 21.Qd3 Rfe8 22.Rfe1 Nb6 23.Qd6+- Bf7 24.c5 Na4 25.Ng4 Kg7 26.e5 fe5 27.Ne5 Nc3 28.Rd3 Ne2 29.Re2 Bc4?? 30.Qd4 Bd3 31.Ng4 (31.Ng4 Qe5 32.Re5 Re5 33.Qe5 Kf8 34.Qf6 Ke8 35.Qg7 Bf5 36.Nf6 Kd8 37.Qf8 Kc7 38.Qd6#; 31.Nd3?! Qf6 32.Qd7 Qf7 33.Qf7 Kf7 34.Ne5 Kf6=; 31.Qd3 Rcd8 32.Qa3 a6+=) 1–0. Doncea,Vladimir (2450) – Wegner,Eric (2040), Lyon op, 2007.

11.Qc2 Bf5 12.e4 Be6 13.Nd2 Qh4 14.g3 Qh3 15.f4 Ng4 16.Bg4 Bg4 17.Bg7 Kg7 18.Nf3 Bf3 19.Rf3 Rae8 20.Re3 f5 21.Qb2 Kg8 22.e5 g5 23.Rae1 (worse is 23.fg5 f4 24.Rf3 de5+=) 23...gf4 24.gf4 Kf7?? (better is 24...Qh6+/-) 25.Rh3+- (25.Rh3 Rg8 26.Kf2+-) 1–0. carocan (1875) – dors (1975), kurnik, 2011.

11.Nc3 a5 12.a3 Be6 13.Qb3 Re8 14.Rac1 (14.Nd5 a4 15.Qa2 c6= 16.Nf4 Bf5 17.Bd4 Qh4 18.Rad1 Re7= 0.12) 14...ab4 (14...a4 15.Qa2 c6 16.Ne4 f5 17.Nd2 Qe7 18.f4 Nd7= 0.03) 15.ab4 (15.Qb4 b6 16.Rfd1 Qh4 17.Nd5 Ra7 18.c5 Qb4= 0.09) 15...c6 16.f4 Ng4 (16...Nc4 17.Bc4 d5 18.Nd5 Bb2 19.Qb2 Bd5 20.Rfe1=) 17.Bg4 (17.Ne4 Bb2 18.Qb2 A) worse is 18...Ne3 19.Nf6 Kf8 20.Rf3+- (20.Nh7?! Ke7+=); B) 18...Bf5 19.Bg4 Be4=) 17...Bg4+= 18.e4 (18.Nd1 Bd1+= –0.44) 18...b5 (18...Bd4 19.Kh1+=; 18...Qb6–/+ –0.75) 19.cb5= Be6 20.Qc2 cb5 21.Qf2 Bc4 22.Rfe1 Qd7 23.Rcd1 Qa7 24.Qa7 Ra7 25.Rd6 Bf8 26.Rc6 (26.Rd4 Rb7 27.Ra1 Bb4=) 26...Bb4 27.Rd1 Ba3 (27...f5 28.e5=) 28.Ba1 Bb4 (28...Bf8 29.Bb2=) 29.Nd5+= Bd5 30.ed5 (30.Rd5?? Ra1 31.Kf2 Be1 32.Ke2 Re4 33.Kd3 Rf4 34.Rb5 Ra3 35.Ke2 Re4 36.Kf1 Ra1-+) 30...Bf8 31.d6 ½–½. Rotstein,A (2510) – Isonzo,D (2340), IV Open, Lido Estensi ITA, 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

11.Nc3 Be6 12.Qb3 c6 13.f4 Nc4 14.Bc4 d5 15.Nd5 Bb2 16.Qb2 Bd5 17.Rad1 Qe7 18.Bd5 Qe3 19.Qf2 Qf2 20.Kf2 cd5 21.Rd5 Rfd8 22.Rfd1 Rd5 23.Rd5 Rc8 24.Rd7 Rc2 25.Kf3 Ra2 ½–½. Novkovic,Mi (2375) – Karjakin,Sergey (2520), ECC, Halkidiki GRE, 2002. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.de5)

11.Nc3 Be6 12.Qb3 c6 13.f4 Nd7 14.Ne4 Nf6 15.Bf6 Bf6 16.Rad1 Be7 17.Qc3 d5 18.cd5 cd5 19.Nc5 Rc8 20.Rc1 b6 21.Ne6 Rc3 22.Nd8 Rc1 23.Rc1 Rd8 24.a3 a5 25.ba5 ba5 26.a4 d4 27.Kf2 d3+= 28.Bd1 Bb4 29.Rc7 d2 30.Ke2 h5 31.g3 Kg7 32.e4= h4 33.e5 hg3 34.hg3 Kf8 35.Ke3 Be7 36.Ke4 Bb4 37.g4 Be7 38.f5 gf5 39.gf5 Bb4 40.f6 Ke8 41.Rc4 Kf8 42.Kf5 Kg8 43.Rg4 Kf8 44.Rh4 Kg8 45.Rg4 Kf8 46.Rg3 Rd4 47.Rh3 Kg8 48.Rh1 Bc5 49.Rh3 Bb4 50.Re3 Kf8 51.Rg3 Rd8 52.Rh3 Kg8 53.Rh4 Rd3 54.Rc4 Rd8 55.Rc7 Ba3 56.Rb7 Bb4 57.Rb5 Kf8 58.Rb7 Kg8 59.Ra7 Bc3 60.Rc7 Bb4 61.Rb7 Ba3 62.Rb5 Bb4 63.e6 fe6 64.Ke6 Re8 65.Kf5 ½–½. Nogueiras,Jesus – Herrera,Irisberto, Villa Clara,CUB, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

11.Nc3 f5 12.Qb3 Kh8 13.Rad1 Be6 14.Nd5 Bd5 15.Rd5 Qe7 16.Rfd1 b6 17.Bc3 f4 18.ef4 Rf4 19.Be5 Be5 20.g3 Rf7 21.Qe3 g5 22.Bh5 Rg7 23.c5 g4 24.f3 gf3 25.Bf3 Rag8 26.Bg2 Rf8 27.R5d2 bc5 28.bc5 Rb8 29.c6 a5 30.Qa7 Rb5 31.Bd5 Rg4?? (better is 31...Qd8+=) 32.Qa8+- Kg7 33.Qg8 (33.Qg8 Kh6 34.Qg4+-) 1–0. Hadjiyiannis,Costas (2205) – Constantinides,Antonis, CYP–ch Cyprus, 1993. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.de5)

11.Nd2 Re8 12.Rb1 Qh4 13.Nf3 Nf3 14.Bf3 Bf5 15.Bb7 Rab8 (15...Qc4 16.Ba8 Bb1 17.Bd5 (17.Qb1?! Bb2 18.Qb2 Ra8+=) 17...Qb4 18.Bg7 Ba2 19.Bc6+- (19.Ba2?! Kg7 20.Bd5 Qc3+-); 15...Bb1 16.Ba8 (worse is 16.Qb1 Rab8 17.Bc6 Rb4 18.Be8 Bb2–/+) 16...Bb2 17.Qb1=) 16.Bc6 Bb1 17.Be8 (better is 17.Bg7!? Ba2 18.Qa1 Bc4 19.Bh8=) 17...Ba2 (worse is 17...Re8 18.Qb1 Bb2 19.Qb2 Qc4 20.Rc1+=; 17...Bb2?! 18.Qb1 Rb4 19.Qc2 Qc4 20.Qc4 Rc4 21.Rb1–/+) 18.Bf7 Kf7 19.Bg7 Bc4 (worse is 19...Kg7 20.Qa1 Kh6 21.Qa2 Rb4 22.Qa7 Qc4 23.Qa8+=) 20.Qc2 Kg7 21.Rc1 (21.e4 Bf1 22.Qc7 Kh6 23.Qb8 Qg4 24.Qf8 Kh5-+) 21...d5 22.e4 c6 0–1. Stadler,Pavel – Scacco,Mauro (2100), RI–2006–0-00077, 2006.

11.Bd4 c5 12.Bc3 Be6 13.Qb3 b5 14.bc5 bc4 15.Qa3 dc5 16.Nd2 Qc7 17.f4 Nd3 18.Bg7 Kg7 19.Qc3 f6 20.Nc4 Nb4 21.e4 Rad8 22.a3 Nc6 23.Ne3 Nd4 24.Bc4 Rfe8 25.Rae1 Bc4 26.Nc4 Rb8 27.e5 f5 28.Nd6 Re7 29.Qc4 Qa5 30.Rb1 Rb1 31.Rb1 Qd2 32.Qc5 Qf4 33.Nc4 Rd7 34.Qc8 Rf7 35.Nd6 Re7 36.Qd8 Qe5 37.Qe7 Qe7 38.Rb7 Qb7! 39.Nb7 Kf6 40.Nc5 Ke7 41.Kf2 Kd6 42.Nd3 Kd5 43.a4 Kc4 44.Ke3 Ne6 45.h4 a5 46.h5 Kb3 47.h6 Ka4 48.Ne5 g5 49.g4? fg4 50.Ng4 Kb3 51.Nf6 a4 52.Nh7 a3 53.Nf6 Nf8 54.Nd7 Nh7 55.Nc5 Kc4 (55...Kc4 56.Ne4 a2-+) 0–1. Zoltek,Tadeusz (2315) – Kozlov,Vladimir N (2360), Moscow5–B, 1991. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

11.Bd4 Be6 12.Nd2 f5 13.Rc1 f4 14.ef4 Rf4 15.Be3 Rf8 16.Nf3 Nf3 17.Bf3 c6 18.Bg4 Bf7 19.Bd4 Bd4 20.Qd4 d5 21.cd5 Qd5 22.Qd5 Bd5 23.a3 a5 24.Be2 ab4 25.ab4 Rf4 26.b5 Ra2 27.bc6 bc6 28.Bf3 Bf3 29.gf3 Rf3 30.Rc6 Kg7 31.Kg2 Rf5 32.Rc3 h5 33.Rg3 Kf6 34.Rf3 Rf3 ½–½. Naundorf,Maik (2070) – Borjini,Mohamed (1970), Dortmund ABC Serie C–23, 2005. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5 Ng4 9.0-0 Nde5 10.Ne5 Ne5)

11.h3 Nf3!–/+ 12.Bf3 Bb2 13.Nd2 Ba1 14.Qa1 c6 15.a4 f5 16.Rd1 Qf6 17.Qa2 Be6 18.b5 Rac8 19.Qa3 d5 20.a5 dc4 21.a6 b6 22.bc6 c3 23.Nb3 c2 24.Rc1?? Qc3 25.Rc2 Qc2 26.Nd4 Qb1 27.Kh2 Bf7 28.Qe7 Qa2 29.Qa7 Ra8 30.Qb6 Qa6 31.Qc5 Rac8 32.c7 Rfe8 33.Nb5 (33.Nb5 Qa5 34.Bd5-+) 1–0. brother (1630) – supersz (1685), kurnik, 2012.

10.Qb3 a5 11.Ne5 Be5 12.Be5 de5 13.Nc3 ab4 14.Qb4 c6 15.Rfd1 Qa5 16.a3 Nc5 17.Ra2 Bf5 18.f3 Qa7 19.Kf1 Na6 20.Qb2 Qe3 21.Nb1 Nc5 22.Qc3 Qc3 23.Nc3 Rfd8 24.Ke1 Rd4 25.g4 Be6 26.Rd4 ed4 27.Ne4 Ne4 28.fe4 b5 0–1. Koerner – Kruppa, 1994.

10.Qc1 a5 11.b5 Nf3 12.Bf3 Ne5 13.Be2 Qh4 14.Nc3 Bg4 (14...Nc4? 15.g3 Qf6 16.Bc4+-) 15.f3 Be6 16.Nd5 Rac8 17.f4 Bd5 18.cd5 Nd7 19.Bg7 Kg7 20.Qc3 Qf6 21.Qa5 Qb2 22.Rfe1 Rfe8 23.Rab1 Qc2 24.Rbc1 Qe4 25.Bf3 Qd3 26.Rc3 Qd2 27.Rd1 Qb2 28.Rc7 Nc5 29.Rc8 Rc8 30.a3 Re8 31.Qb4 Qc2 32.h4 Kg8 33.Qd4 Ra8 34.h5 gh5 35.Rf1 Ra3 36.Bh5 Ra2 37.Bf3 Qg6 38.Rf2 (38.e4 Ra4 39.Qd1 Qf6+=) 38...Ra4 39.Qc3 Qb1 40.Rf1 Qg6 41.f5 Qg5 42.f6 b6 43.Bd1 Ra2 44.Bf3 Ra4 45.e4 Qe5 46.Qe5 de5 47.Rd1 Kf8 48.d6 Ke8 49.Rd5 Nd7 50.Kf2 Rd4 51.Rd4 ed4 52.Ke2?? Ne5–/+ 53.Kf2 Kd7 54.Bd1 Kd6 55.Bb3 Nd7 56.Bf7 Nf6 57.Kf3 Ke5 58.Bc4 Ne4 59.Bd3 Nd6 60.Kg4? h6-+ 61.Kh5? Kf4 62.Kh6 Ke3 63.Bc2 d3 64.Bb3 Nb5 65.g4 Nd4 66.Bd1 Kd2 67.Ba4 b5 68.Bb3 Nb3 69.g5 Nd4 70.g6 Ne6 (70...Ne6 71.Kh7 Nf8 72.Kh6 Ng6 73.Kg5 b4 74.Kg4 b3 75.Kf3 b2 76.Ke4 b1Q 77.Kf5 Ke3 78.Ke6 d2 79.Kd5 Qb6 80.Kc4 d1Q 81.Kc3 Qd3#) 0–1. Okon,Dariusz (2200) – Maes,Wim (2245), XXVI Miedzynarodowy Turniej, 2011. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

10.Qc2 a5 11.b5 Nc5 12.Ne5 (12.Nd4 a4=) 12...Be5 (12...Bf5!? 13.Nd3 Bb2 14.Qb2 Nd3=) 13.Be5= de5 14.Nc3 c6 (14...Bf5 15.e4 Be6 16.Rfd1=) 15.bc6 bc6 16.Bf3 (16.Rfd1!? Qg5 17.Rd6=) 16...Bf5+= 17.e4 Bd7 18.Rfd1 Ne6 19.Ne2 Qe7 20.Rab1 Rfb8 21.Rb8 Rb8 22.Qd2 a4 23.Bg4 (23.h4 Nc5=) 23...Nc5 24.Bd7 Qd7 25.Qd7 Nd7 26.f3 Nc5 27.Rd6 (27.Rd2!?–/+) 27...Rb2 28.Kf2 (28.Kf1 Ra2 29.Rc6 Nd3-+) 28...Ra2-+ 29.Rc6 Nb3 (29...Nd3 30.Ke3 Ne1 31.Kf2 Ng2 32.Kg2 Re2 33.Kg3+=) 30.Rc8 Kg7 31.Ke3 (31.Ke1 Na1 32.Kf2 Rd2-+) 31...a3 (31...Rc2!? 32.Ra8 Nc5 33.g4–/+) 32.Ra8–/+ Ra1 33.Nc3+= Nd4 34.Kf2 Ne6 35.g3 Nc5 36.Nb5 a2–/+ 37.Nc3 Nd3 38.Ke2? Re1 39.Kd3 a1Q 40.Ra1 Ra1 41.c5 Kf6 42.Nd5 Ke6 43.Kc4 f5 44.c6–/+ Kd6 45.c7 Rc1 46.Kb5 fe4 47.fe4 Kd7 48.Kb6 Rb1–/+ 49.Kc5 Re1 50.Kb6= Rb1 51.Kc5 Rb2 52.h4 h5 53.c8Q Kc8 54.Kd6 Rg2 55.Ne7 Kd8 56.Ng6 Rg3 57.Ne5 Ke8 58.Ke6 Rg4! 59.Kf5 Rh4 60.Nf3? Rh1 61.Kg5–/+ Kf7 62.Nh4 Ke6 63.Nf3 Rh3 64.Kf4 Rh1 65.Kg5–/+ Rf1 66.Kf4? h4 67.Kg4–/+ h3 68.Ng5 Ke5 69.Kh3 Kf4 70.Kh4 Rh1 71.Nh3 Kf3 72.e5 Kg2 73.Kg5 Rh3 74.Kf6 Re3 75.e6 Kf3 76.e7 Kf4 77.Kf7 Kf5 78.e8Q Re8 79.Ke8 ½–½. Sieber,M (2025) – Stachon,Martin (2110), CZE, Liga, 2014.

10.Nc3 Nf3 11.Bf3 Ne5 12.Be2 Be6 13.Qb3 Qh4 14.e4 (better is 14.f4 Ng4 15.Bg4 Bg4 16.Nd5=) 14...Bc4?? (better is 14...Rae8+=) 15.Bc4+- Nf3? (15...Nc4 16.Qc4 c6 17.f4+-) 16.gf3 Be5 17.Rfe1 Qh3 18.Qc2 Bh2 ½–½. Kuttruf,Andrei – Schwab,Matthias (1635), Wuerttemberg–ch U18, 2003.

11.Qb3 a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 Be6 (14...Re8 15.Nd2=) 15.Na3 (15.f4 Ng4 16.Bg7 Kg7=) 15...d5 (15...Re8 16.Bd4=) 16.Qc2 (16.Bd4 Nc4 17.Bg7 Kg7 18.Nc4 dc4 19.Bc4 Qf6=) 16...Nc4 (16...c6 17.cd5 Qd5 18.f4=) 17.Nc4+= dc4 18.Bg7 Kg7 19.Bc4 Bc4 20.Qc4 c6 21.b5 Qf6 22.bc6 bc6 23.Rc1 Rb8 24.f4 (24.Qc6?? Qc6 25.Rf1 Qc2-+) 24...Re8 25.Qc6 ½–½. Wiley,To (2315) – Laurent,B (2365), ch–BEL Namur BEL, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

11.Qb3 Be6 12.Qc2 Qh4 13.Nd2 Rae8 14.Rac1 f5 15.Nf3 Nf3 16.Bf3 Bb2 17.Qb2 Bc4? (17...f4 18.Qd4 b6 19.g3+=) 18.Rfd1?? (better is 18.g3 Qf6 19.Qf6 Rf6 20.Rc4+-) 18...b5+= 19.a4 a6 (19...ba4? 20.Rd4 Qf6 21.Rcc4+-) 20.ab5 ab5 21.Bd5 Bd5 22.Rd5 Re7 23.Rb5 f4 24.ef4 Qf4= 25.g3 Qe5?? 26.Re5+- de5 27.b5 Rf6 28.Rc6 Rff7 29.b6 cb6 30.Qb6 e4 31.Rc8 Kg7 32.Qd4 Kh6 33.h4 e3 34.fe3 Rd7 35.Qe4 Rd1 36.Kg2 Rff1 37.Rc7 Rg1 38.Kf3 Rdf1 39.Kg4 Rf7 40.Rf7 (40.Rf7 Rf1 41.Qe8 Rf4 42.ef4 g5 43.Qe6#) 1–0. bluepiramid2 (1610) – mb88 (1720), kurnik, 2011.

11.Qb3 Be6 12.Nd2 b5 13.Rfc1=.

11.Qb3 Be6 12.Nd2 b5 13.Be5 Be5 14.Rac1 bc4 15.Bc4 d5 16.Be2 Qd6 17.Nf3 Bf6 18.a3 d4 (18...a5 19.b5=) 19.Qd3 (19.Qb2!?+=) 19...de3= 20.Qe3 Rfe8 21.Qc5 Bd5 22.Qd6 cd6 23.Rfd1 Bb3 24.Rd2 Rac8 25.Rc8 Rc8 26.g3 d5+= 27.Kg2 Rc2 28.Rc2 Bc2 29.a4 Be4 30.Kf1+= Bc3 31.b5 Bc2 32.Ng1? Ba4 33.f4 Bc2 34.Nf3 d4 35.Ne5 f6 36.Bd3 Bb3 37.Nc6= Ba4 38.Na7+= Kf7 39.b6+/- Ba5 40.b7 Bc7 41.Bb5 Bb5?? 42.Nb5+- Bb8 43.Ke2?? Ke7 44.Kd3 Kd7 45.Kd4 Kc6+= 46.Nc3 Kb7 47.Kd5 g5? 48.fg5 fg5+/- 49.Ke4 h5+= 50.Kf5 h4 51.gh4 gh4 52.h3 Kc6 53.Kg4 Bg3 54.Ne2 Be1 55.Nf4 Kd6 56.Ng2 Bg3 57.Ne3 Ke5 58.Nc4 Kf6 59.Nb6 Kg6 60.Nd5 Kh6 61.Ne3 Kh7 62.Nf5 1–0. bluepiramid2 (1675) – supersz (1735), kurnik, 2011.

11.Qb3 Be6 12.Nd2 Qf6 13.Bd4 Qe7 14.Nf3 b6 15.Rac1 c5 16.Be5 de5 17.a3 Rfd8 18.Rfd1 e4 19.Nd2 f5 20.Nf1 Qc7 21.Ng3 Bf8 22.b5 Rd1 23.Rd1 Rd8 24.Bf1 h5 25.Rd8 Qd8 26.Ne2 g5 27.h4 Qd3 28.Nc1 (better is 28.Nc3!? Qd8 29.hg5 Qg5 30.Qd1+=) 28...Qb3–/+ 29.Nb3 gh4 30.Kh2 Kf7 31.Kh3 Be7 32.Nd2 Kg6 33.Be2 Kg5 34.f4 Kg6 35.a4 Bf6 36.Nb3 Kh6 37.a5 Bd8 38.ab6 ab6 39.Kh2 Bf6 40.Kg1 Bf7 41.Kf2 Be6 42.Nc1 (42.Kg1 Bc3 43.Kh2–/+) 42...Kg6 43.Nb3 Bc3 44.Nc1 Bf7 45.Nb3 Kf6 46.Nc5? (better is 46.Nc1!?–/+) 46...bc5-+ 47.b6 (47.b6 Ba5 48.b7-+). ludice (1615) – mulder76 (1865), kurnik, 2011. (=1.e3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.d4 d6 6.Be2 Nbd7 7.Nf3 e5 8.de5)

11.Qb3 Qe7 12.Nc3 c6 13.b5 Be6 14.Rac1 f5 15.f4 Nd7 16.Ba3 Bf7 17.Nd1 cb5 18.Qb5 Nc5 19.Bf3 Rac8 20.Rc2 Rfd8 21.Qb4 b6 22.Qd2 Ne4 23.Qd3 Qe6 24.Nb2 d5 25.Rd1 d4 26.ed4 Bd4 27.Kf1 Bf6 28.Qe3 Nd2! 29.Qd2 Rd2 30.Rcd2 Qe3 31.Bd6 Bb2 32.Rb2 Bc4 33.Be2 b5 34.Be5 Qe4 35.Bc4 Qc4 36.Kf2 Qe4 37.Rdd2 a6 38.Re2 Qc4 39.Rbd2 Qc5 40.Kg3 Qc4 41.Re3?? g5! 42.h4 Qc1 43.Ree2 Qa3 44.Kf2 gh4 45.Re3 Qc1 46.Ree2 Qh1 47.Bb2 Qh2 48.Rd7 Qf4 49.Kg1 Qc4 50.Ree7 Qa2 51.Be5 Qa3 52.Kh2 Qc5 53.Bf4 Qc3 54.Be5= Qc5 55.Bd6 Qd5?? 56.Rg7 Kh8 57.Rh7 (57.Rh7 Kg8 58.Rdg7) 1–0. Krnic,Zdenko (2380) – Haik,Aldo (2440), Kladovo, 1980. (=1.Nf3 Nf6 2.c4 d6 3.d4 g6 4.b4 Bg7 5.Bb2 Nbd7 6.e3 0-0 7.Be2 e5 8.de5)

11.Qc2 a5 12.a3=.

11.Qc2 Qe7 12.Nd2 (12.Nc3 Qh4=) 12...Bd7 (12...Re8 13.e4=) 13.h3 (13.Rfd1 Rfe8=) 13...Rae8 (13...Rfe8 14.Rfd1=) 14.Rae1 (14.Rad1 a5 15.ba5 Ra8=) 14...f5 15.c5 (15.a3 f4=) 15...dc5 16.bc5 Bc6 17.Be5 Be5 (17...Qe5 18.Bf3=) 18.Bf3 Qf6 (18...Qe6 19.Bc6 Qc6 20.Nf3=) 19.Bc6 Qc6 (worse is 19...bc6 20.Nf3+/-) 20.Nf3 Bf6 21.Rb1 (21.Nd4 Qd5=) 21...Kh8 (21...b6 22.Rfd1=) 22.Qb3+= Rb8 (22...b6 23.cb6 ab6 24.Rbc1=) 23.Rbc1 (23.Nd4 Bd4 (worse is 23...Qc5 24.Ne6 Qe7 25.Nf8 Qf8 26.Rfc1+/-) 24.ed4 Rfd8+=) 23...Rfd8= 24.Rfe1 Rd7 25.Rc4 Rbd8 26.Rb1 Qd5 27.c6 bc6 28.Qc2 Rd6 29.Rb7 Be5 30.Nd4 Qa5+= 31.g3 Bd4 32.Rd4= Rd4 33.ed4 Qe1 34.Kg2 Rd4 35.Qc5 Qe4 36.Kh2 Rd8 37.Ra7 Qd4 38.Qd4 Rd4 39.Rc7 (39.a4 c5+=) ½–½. Urzica,Aurel – Andersson,Ulf, Wch U20 prel–C, 1969.

14.Rd1 Nc4 15.Bf8 Bf8?? (15...Kf8 16.Nc3 Bc3+/-) 16.Bc4+- 1–0. Fournier,Frederic (2445) – MM78 (2380), Chess.com (World League Super Cup), 2010.

14.Bd1 Nc6 15.Bf8 Kf8+=.

11.Bd4 a5 12.f4 Nd7 13.b5 Nf6 14.Bf3 Re8 15.Nc3 Qd7 16.e4 c5 17.bc6 bc6 18.Rb1 Qe6+= ½–½. Jekel,W (1785) – Stewart,Ashley (2135), London Classic Open, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 Nbd7 7.Be2 e5 8.de5 Ng4 9.0-0 Nge5 10.Ne5 Ne5)

11.Bd4 Re8=.

11.Kh1 Re8 12.Nd2=.

11.Kh1 Qh4 12.Qd4 Qd4 13.Bd4 (worse 13.ed4 Nc6–/+) 13...a5 14.b5 Be6 (14...Re8 15.Nd2=) 15.Nd2 b6 (15...Rfe8 16.Rad1=) 16.Rac1 (16.Rad1 Rae8+=) 16...Rae8 17.Be5 (17.Rcd1 f5=) 17...de5 18.Bf3 (18.Rfd1 Rd8=) 18...Rd8=+ 19.Ne4 (19.Rfd1 Rd6=+) 19...h6–/+ 20.Be2 f5 21.Nc3 Rd2 22.Rfd1 Rfd8 23.e4 R8d4 (23...Bf8 24.Bf3 Rd1 25.Rd1 Rd1 26.Bd1 Bc4 27.Be2–/+) 24.Kg1 Bf8 25.Kf1 Bd6 (25...Rb2 26.ef5 Bf5 27.Ra1–/+) 26.Rd2 Rd2 27.Rd1 (27.a4!?=+) 27...Rc2–/+ 28.Nd5 Ra2 29.ef5 gf5 30.g4 (30.f3 Bd5 31.cd5 Kf7-+) 30...Bd5 (30...fg4 31.Bg4 Bg4 32.Nf6 Kf7 33.Ng4-+) 31.cd5 (31.Rd5 fg4 32.Bg4 Kf7-+) 31...fg4 32.Bg4 a4 33.Kg2 (33.Be6 Kf8 34.Rd3 Rb2 35.Rf3 Ke8 36.Bf7 Kd8-+) 33...a3 34.Kf3 (34.Be6 Kf8-+) 34...Rb2 (34...Bc5 35.Rf1 Rb2 36.Be6 Kg7 37.Ke4-+) 35.Be6 (35.h3 Rb5 36.Ke4 Rb4 37.Kd3 b5-+) 35...Kg7 36.h4 (36.Ra1 Bc5-+) 36...a2 (better 36...Bc5 37.Ra1 Rf2 38.Kg3 Rb2-+) 37.Rg1 (37.Ra1 Kg6 38.Ke4-+) 37...Kf6 38.h5 (38.Ra1 Bc5 39.Kg4 Rf2-+) 38...Rf2!! 39.Ke4 (39.Kf2 Bc5 Double attack) 39...Rf4 40.Kd3 e4 41.Kc2 Rf2 42.Kb3 Be5 43.Rg6 Ke7 44.d6 (44.Rg1 e3 45.Rc1-+) 44...cd6 (44...cd6 45.Rg1 Ke6-+) 0–1. Zarubitski,Viachaslau (2325) – Kovalev,Vladislav (2595), Bronstein Memorial, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5 Ng4 9.0-0 Nge5 10.Ne5 Ne5)

10.Nd2 Qh4!? 11.g3 Qh3–/+.

10.Nd2 Bh6 11.Nd5 (11.h3!? Nf6 12.f4+=) 11...c6+= 12.Nf4 Qe7 (12...Qb6 13.Bd4 Qb4 14.Rb1+=) 13.0-0= Nf6 (13...Bf5 14.Nb3=) 14.g3 (14.Nf3 a5=) 14...Bf5 15.Nb3 Rad8 16.a4 Rfe8 17.Ra3 (17.Nd4 Bg4+=) 17...Bg7 (17...g5 18.Ng2 c5 19.f4 cb4 A) 20.fe5? de5 (20...ba3? 21.ef6 Qe4 22.Nd4+-) 21.Qc1 ba3 22.Ba3 Qe6-+; B) 20.Nd4–/+) 18.Ba1? (18.Nd4 Bd7 19.Qc2 c5 20.bc5 dc5=) 18...d5 (better is 18...g5!? 19.Nd3 Nc4-+) 19.c5+= Nc4 20.Ra2 Ne4 (20...g5!? 21.Nh5 Nh5 22.Bh5 Ne5+=) 21.Bg7= Kg7 22.Qd4 (22.Qc1 Bc8=) 22...Qf6 (22...Qe5 23.Qe5 Ne5 24.Nd4=) 23.Rc1 Ne5 24.Qa1 Nd7 (better is 24...Ng5!? 25.Nd4 Be4=) 25.g4+/- Qa1 26.Raa1 Be6 27.f3 Nef6 28.Nd4 Ne5 (28...g5 29.Nd3+=) 29.Ra3 (29.g5 Nfd7+/-) 29...Bd7 30.h3 (30.g5 Ng8+=) 30...Re7 (30...g5 31.Ng2=) 31.Kf2 Rde8 (31...g5 32.Ng2=) 32.b5 (32.g5 Ng8+=) 32...h5 (32...g5!? 33.Ng2 Rc8=) 33.g5+/- Ng8 (33...Nh7 34.h4+/-) 34.h4 f6 35.gf6 (35.Rg1 Kh7+/-) 35...Nf6 36.Rb3 Bc8 (36...Kh6 37.a5+/-) 37.Rg1 (better is 37.a5+/-) 37...Kh6? (better is 37...Rg8+/-) 38.bc6+- bc6 39.Nc6! Nfg4 (39...Nc6 40.Rg6) 40.fg4 Nc6 41.gh5 Ne5 (41...Bf5 42.Bb5 Rb8 43.hg6+- (43.Bc6?! Rb3 44.Bd5 Rb2 45.Kf3 gh5 46.Nh5 Kh5 47.Rg5 Kh4 48.Rf5 Rb1+=)) 42.hg6 1–0. Drazic,Sinisa (2525) – Burlando,Alessandro (2160), 9th Milan Crespi op–A, 2008. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5 Ng4)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 c6 13.b5 Qh4 14.f4 Ng4 15.Bg4 Bg4 (15...Qg4 16.Rad1 cb5 17.Qb5=) 16.Ne4= Qe7 17.Bg7 Kg7 18.Qd3 Be2 19.Qe2 Qe4 20.Rfd1 Rae8 21.Kf2 Re6 22.Rd4 Qd4 23.ed4 Re2 24.Ke2 Re8 25.Kf3 cb5 26.cb5 d5 (26...Rc8 27.Re1=) 27.Rb1= Rc8 28.Rb3 Rc4 29.Ra3 Rb4 30.Ra7 Rb5 31.Ra3 Rb4 32.Rb3 Rd4 33.Rb7 Rd3 34.Ke2 Ra3 35.Rb2 Kf6 36.Rd2 Ke6 37.Kd1 Ra5 38.g3 Kd6 39.Kc1 Kc5 40.Kb2 Kc4 (40...Ra7 41.Rc2 Kd4 42.a4=) 41.Rc2= Kd3 42.Rc3 Kd2 43.Rc2 Kd3 44.Rc3 Kd2 45.Rc2 Kd3 ½–½. Lorne,Malaku (2055) – Perera,WCC (2080), Tromso NOR, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.d4 d6 6.e3 Nbd7 7.Be2 e5 8.de5 Ng4 9.Nc3 Nde5)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 c6 13.f4 Ng4 14.Bg4 Bg4 15.Ne4 Bb2 16.Qb2 f6 17.Qd4+= d5 18.cd5 cd5 19.Ng3 Qb6 20.Qd5+/- Be6 21.Qf3 f5 22.Kh1 Rad8= 23.e4 fe4 24.Qe4 Rd4 25.Qe5 Bc4 26.Rf2 Rfd8 27.Qe1+= Qd6 28.Ne4 Qe7 29.Nc3 Qe1 30.Re1+= Bf7 31.a3 Rd3 32.Nb1 Bc4 33.Rc2 R8d4 34.g3 Kf7 35.Kg1 h5 36.Kf2 b5 37.Rc3 Rc3 38.Nc3 Rd2 39.Kf3 Rh2= 40.Re5 a6 41.Ne4 Ra2 42.Nd6 Kf6 43.Nc4+= bc4 44.Ra5 c3 45.Ra6 Kf5 46.Ra5 Kf6 47.Ke3 Rg2= 48.Kf3 Ra2 49.Ke3 Rg2= 50.Kf3 Ra2 ½–½. Tu Hoang Thong (2485) – Hoang Canh,H (2145), ch–VIE Prelim, Hue VIE, 2005. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.de5)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 f5 13.Nd5 c6 14.Nf4 Bf7 15.Qc2 Qf6 16.Kh1 g5 17.Nh3 f4 18.ef4 gf4 19.f3 Rae8 20.Rad1 d5 21.cd5 Bd5 22.Bd3 Qh4 23.Be4 Be6 24.Nf2 Rd8 25.Rde1 Nc4 26.Bg7 Kg7 27.Ng4 Nd2 28.Qc3 Kg8 29.Rg1 Bg4 30.fg4 Qg4 31.Bd3 Qd7 32.Re5 h6 33.Qd2 Qd3 34.Qf2 Qd4 35.Qe2 Rd7 36.Re6 Qg7 37.Qh5 Rd5 38.Qh4 Qg5 39.Qh3 Kh7 40.Rge1 Rf7 41.Qf3 Qf5 42.Re7 Rd7 43.R7e4 Rd2 44.Re5 Qd3 45.Qh5 Qg6 46.Qf3 Qd3 47.Qh5 Qg6 48.Qf3 Qd3 ½–½. Kempinski,R (2575) – Kovchan,A (2505), 4th Rector Cup (Kharkov UKR) (5), 2002.

10.Ne5 Ne5 11.0-0 Qh4 12.Nd5 c6 (12...Nc4? 13.Bg7 Kg7 14.g3 Ne3 15.fe3+- (15.Ne3?! Qb4 16.Rb1 Qa5+/-)) 13.Nf4 Nf3 14.Bf3 Bb2 15.Rb1 Be5 16.b5 Bf5 17.bc6 bc6 18.Rb7 Bf4 19.ef4 Qf4 20.Bc6 Qc4 21.Bd5 Qc5 22.Qb3 a5 23.Re1 Be6 24.Be6 fe6 25.Qe6 Kh8 26.Qe2 Qd4 27.h3 Qf6 (27...Rab8 28.Rd1 Rbe8 29.Qd2 Qd2 30.Rd2+/-) 28.Re7 (28.Qd2 Rf7 29.Rf7 Qf7+/-) 28...Rad8 (28...Rab8!? 29.Qe3 a4+=) 29.Qd2+/- Rf7 (29...Kg8 30.R1e2+/-) 30.Rf7 Qf7 31.Qa5 Qf6 32.Qa7 Qf4 (better is 32...Kg8!?+/-) 33.Re7+- Qc1 34.Kh2 Qf4 35.g3 Qf2?? (35...Qh6+-) 36.Qf2 (36.Qf2 d5 37.Qd4 Kg8 38.Qg7#) 1–0. Krnic,Zdenko (2425) – Narancic,Vlado (2385), YUG–chT2 Yugoslavia, 1994. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

10.0-0 Nf3 11.Bf3 Ne5 12.Be2 Be6 13.Qb3 Qh4 c4 seems the pivot of the position 14.Nd5 Rac8 15.g3 Qd8 16.f4 Nd7 17.Bg7 Kg7 18.e4 c6 19.Ne3 f6 20.Rfd1 Qe7 21.Rd2 Rcd8 22.Rad1 Nb6 23.Qc3 Nc8 24.Bf3 Rde8 25.h4 h6 26.Kf2 Rf7? (better 26...b6!?+=) 27.h5 g5 (27...Qf8 28.hg6 Rd7 29.f5+-) 28.f5 Bd7 29.c5 Qe5 (29...Qd8+-) 30.Qe5 fe5 (30...de5?? 31.Rd7 b5 32.Ng4+-) 31.g4 (31.cd6 Nb6+-) 31...d5 32.ed5 e4 33.Be2 (33.Bg2!? cd5 34.Nd5 Re5+-) 33...cd5 34.Rd5 Bc6 35.R5d4 a6 36.Bc4 Rfe7 37.Bb3 Kf6 38.a4 Ke5 (38...Re5 39.Ke2 Kg7 40.Nc4+-) 39.Ng2 (better 39.Nc4 Kf6 40.Rd6 Nd6 41.Rd6 (41.Nd6?! e3 42.Ke2 Ra8+/-; 41.cd6?! e3 42.Ke2 Re4=) 41...Kg7 42.f6 Kh7 43.fe7 Re7 44.Ne3+-) 39...Kf6 40.Ke3 Re5 41.Rc1 R8e7 42.Ne1 Rd7 43.Rd7 Bd7 44.Rd1 Bc6 45.Rd8 Ne7 (45...Re8 46.Re8 Be8 47.Ke4 Ne7+-) 46.Rd6 (46.Rd6 Kg7 47.f6 Kf8 48.fe7 Re7 49.Rh6+-) 1-0. Westerberg,J (2535) - Burwick,M (2245), Elite Hotels Vaxjo Open SWE, 2020. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.d4 d6 6.Be2 Nbd7 7.c4 e5 8.de5)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 a5 13.b5 Nd7 14.Na4 Bb2 15.Qb2 Qf6 16.Qf6 Nf6 17.c5 d5 18.Rfd1 Rad8 19.Rd4 c6 20.Nb6 Bd7 21.Ra4 cb5 22.Ra5 (22.Nd7?! ba4 23.Nf6 Kg7+=) 22...b4 23.Rb1 (23.Nd7?! Rd7 24.Rb1 d4+/-) 23...Bc6 24.Rb4 Rfe8 25.Rd4 Ne4 26.Bd3 (26.Bb5 Kf8+-) 26...Ng5+/- 27.h3 Ne6 28.Rb4 d4 29.ed4 Nd4 30.Bc4 Kg7 31.Rb2 Re5 32.f3 Nf5 33.Kf2 Nh4 34.Be2 Rd4 35.Rc2 Nf5 36.Nc4 Re6 37.g4 Ne7 38.Ne3 (38.Nd6 g5+/-) 38...Rf6 39.Ra3 h6 40.Rac3 Rdf4 41.Ng2 Rd4 42.Rc4 Rd8 43.Rf4 Nd5 44.Rf6 Kf6 45.Rd2 Ra8 46.Bc4 Nc3 47.Rc2 Ra3 (47...Na4 48.Bb3+=) 48.Bb3 Nb5 49.Rd2 (49.Rc4!?+/-) 49...Nc7+= 50.Ne3 Ra5 51.Rc2 Na6 52.Nd5 Kg7 53.Ne7 Nc5 54.Nc6 bc6 55.Ke3 Kf6 56.f4 Ke7 57.Kd4 Nb3 58.ab3 Kd6 ½–½. Krnic,Z (2380) – Nikolic,Milo (2295), Belgrade Premier League, Belgrade SRB, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 c6 13.f4 Nc4 14.Bc4 d5 15.Nd5 Bb2 16.Qb2 Bd5 17.Rad1 Qe7 18.Bd5 Qe3 19.Qf2 Qf2 20.Rf2 cd5 21.Rd5 Rfd8 22.Rfd2 Rd5 23.Rd5 Rc8 24.Rd7 Rc1 25.Kf2 Rc2 26.Kf3 Ra2 27.Rb7 a5 28.b5 a4 29.h4 a3 30.h5 gh5+= 31.Ra7 Rb2 32.Ra3 Rb5 33.Kg3 Kg7 34.Kh4 ½–½. Kempinski,Robert (2625) – Moranda,Wojciech (2450), 62nd ch–Poland, Poznan Poland, 2005. (=1.Nf3 g6 2.b4 Bg7 3.d4 Nf6 4.e3 d6 5.Bb2 0-0 6.c4 Nbd7 7.Be2 e5 8.de5)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 Qh4 13.Nd5 Rac8 14.f4 Nd7 15.Bg7 Kg7 16.Qc3 Kg8 17.e4 f5 18.g3 Qd8 19.ef5 Bf5 (19...Rf5? 20.Bg4 c6 21.Bf5 gf5 22.Ne3+-) 20.Bf3 c6 21.Ne3 Bh3 22.Rfe1 Ne5 23.Bg2 Bg2 24.Kg2 (worse is 24.fe5 Bf3=) 24...Nd7 25.Rad1 Nf6 26.Qd4 c5 27.Qd2 Qc7 28.b5 Rcd8 29.Nd5 Nd5 30.Qd5 Qf7 31.Re6 Rde8 32.Re8 Re8 33.Qf7 Kf7 34.Rd6 Re2 35.Kf3 Ra2 36.Rd7 Kg8 37.Rb7 Ra4 38.Ke4 Rc4 39.Ke5 Rb4? (39...h6+-) 40.Kf6 (40.Ra7?! Rb5 41.Ra2 Kf7+/-) 40...h5 41.Kg6 (41.Ra7?! Rb5 42.Kg6 Rb6 43.Kh5 Rc6+-) 41...Kf8 42.Ra7 (worse is 42.Kh5 c4 43.Kg6 c3 44.Ra7 Rc4+-) 42...Rb5 (42...h4 43.f5 hg3 44.hg3+-) 43.f5 (43.f5 Ke8 44.f6+-) 1–0. Krnic,Zdenko (2450) – Zivanic,Slobodan (2270), YUG–chT2 Tivat, 1995. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 Nbd7 7.Be2 e5 8.de5 Ng4)

10.Ne5 Ne5 11.0-0 Be6 12.Qb3 Qh4 13.g3 Qh3 14.Nd5 Bd5 15.cd5 Rae8 16.Rac1 Re7 17.Be5 de5 18.Rc4 e4 19.Qc2 Be5? 20.Re4+- Qd7 21.Rd1 f5 22.Rc4 Bd6 23.a3 g5 ½–½. Margvelashvili,G (2505) – Howell,D (2620), WJun, Puerto Madryn ARG, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 Nbd7 7.Be2 e5 8.de5)

8.Nfd2 Nbd7 9.Nc3 Re8 10.Qc2 Qe7 11.g4 h6 12.h4 g5 13.hg5 hg5 14.0-0-0 Nf8 15.f3 ef3 16.Bd3? (16.Bf3!? Qe3 17.Nce4 Ne4 18.Be4 Re4 19.Qe4 Qe4 20.Ne4 Bg4 21.Rde1=) 16...c6 17.e4 Ng4 18.e5? (18.Nf3 Ne3 19.Qh2 Nd1 20.Nd1 g4-+) 18...f5 19.ef6 Nf6 20.Nf3=+ Qe3 21.Nd2 Bg4 22.Rdf1 Nh5 23.Bg6 Ng6 24.Qg6 Re6?? 25.Qf7+/- Kh8 26.Rh5 Bh5+= 27.Qh5 Rh6 28.Qf3 Qf3 29.Rf3 Bd4 30.Rd3 Be5 31.Nce4 g4 32.Nd6 Bb2 33.Kb2 Rh3 34.Nf7 Kg8 35.Ne5? Rd3 36.Nd3=+ g3 37.Ne1 Re8 38.Nef3 g2 39.Ng1 Kg7 40.Ndf3 Kh6 41.Kc2 Kh5 42.Nd4 Kg4 43.Nde2 Rd8 44.Kc3 Kf5 45.Nd4 Ke4 46.Ne6 Rd1 47.Ne2 Rf1 (47...Rf1 48.Kd2 g1Q 49.Ng1 Rg1-+) 0–1. Shcherbine,A (2210) – Della Morte,G (2345), 2nd ITT, Villa Martelli ARG, 2007.

9.b5 c6 10.a4 (10.Nc3 Re8+=) 10...d5 11.cd5 cd5 12.0-0 b6 (12...Be6 13.Ba3 Re8 14.Nc3+=) 13.Nc3 Re8 14.Rc1 Ra7 15.Qb3 Be6 (15...Rc7 16.Ba3+=) 16.Rc2+/- Rc7 17.Rfc1 Qd7 (17...Bf8+=) 18.Ba3 (better is 18.Nce4 Rc2 19.Nf6 Bf6 20.Qc2+-) 18...Rec8+= 19.Qb2 Bf8 (19...Bf5 20.h3+=) 20.Bf8+= Kf8 21.Qa3 Qe7 22.Qe7+= Ke7 23.h3 Nbd7 24.g4 g5 25.f3 Kd6? 26.fe4+- Ne8 27.ed5 Bd5 28.Nde4 Be4 29.Ne4 Kd5 30.Rc7 Rc7 31.Rc7 Nc7 32.Ng5 f6 33.Nh7 Ke4 34.Kf2 (34.Kf2 Kd5 35.h4+-) 1–0. Djurisic,D (1990) – Ostojic,S (1925), Spring Open, Belgrade SRB, 2009.

9.b5 Re8 10.Nc3 Nbd7 11.Qc2 Qe7 12.0-0 h5 13.Bc1 h4 14.h3 Nf8 15.Nd5 Nd5 16.cd5 Qg5 17.Ne4 Qd5 18.Nd2 Re7 19.Nf3 Qh5 20.a4 Bf5 21.Bd3 Bd3 22.Qd3+=. Melich,Jindrich (2150) – Ausmins,Elmar (2320), Imperia op, 2000.

9.a3 Nc6 (9...cd4 10.Bd4 Nc6 11.Bb2=) 10.Qb3 (better 10.d5!? Nb8 11.0-0+=) 10...cd4=+ 11.ed4 Ng4 (11...d5 12.b5 dc4 13.Qc4=+) 12.Qd1 (better 12.Ne4 Re8 13.Nbd2=) 12...e3 13.Bg4 ed2 14.Nd2 Nd4 (14...Re8 15.Kf1=+) 15.0-0= Ne2 (15...f5 16.Bh3=) 16.Be2+= Bb2 17.Ra2 Bg7 (17...Be5 18.Nf3+=) 18.Ne4+/- d5 19.cd5 (19.Qd5 a5 20.b5 Qe7+/-) 19...Re8 20.Bf3 Bf5 21.Ng3 Bd7 22.Re1 Rc8 23.h3 (23.Re8 Be8 24.d6 Bc6+/-) 23...Ba4 24.Re8 Be8 (24...Qe8 25.Qe2+/-) 25.d6 Bd7 (25...b5 26.Re2 Rc4 27.Re1+/-) 26.Rd2 (26.Bb7!? Rc4+-) 26...Be5 27.Ne4 (27.Re2 Bg3 28.fg3 Be6+/-) 27...b6 28.Qb3 (28.Rd5 Bg7+/-) 28...Be6 (28...Rc1 29.Rd1 Rd1 30.Qd1+=) 29.Qd3 (29.Qe3 Rc1 30.Bd1 Bd7+/-) 29...Rc1 (29...f5 30.Ng3 Qd7 31.b5+=) 30.Rd1 Rd1 31.Qd1 (31.Bd1 f5 32.Bb3 fe4 33.Be6 Kg7 34.Qe4 Qd6 35.Bd5+/-) 31...Bf5 (31...f5 32.Ng3=) 32.Ng3 (32.Qd5 Bb2+/-) 32...Qd6 (32...Be6!?=) 33.Nf5+/- Qd1 34.Bd1 gf5 35.Bf3 Bb2 36.a4 a6 37.b5 ab5 38.Kf1?? (38.ab5 Kg7+=) 38...Bd4?? (38...ba4 39.Ke2-+) 39.Ke2?? (better 39.ab5 Kg7 40.h4+=) 39...ba4-+ 40.Bc6 a3 41.Kd3?? (41.Bd5-+) 41…a2 (41...a2 42.Kd4 a1Q 43.Kd5 Qa3-+) 0-1. jhonores (2205) - yuraust (2205), Rated Blitz game, lichess.org, 2020.

9.b5=.

9.Nc3 Bf5 10.g4 cb4 11.gf5 bc3 12.Bc3 Nc6+=.

9.bc5 dc5 10.0-0 cd4 11.ed4 Re8 (11...Nc6 12.d5 Ne7 13.Nc3+=) 12.Nb3 Nc6 13.Na3 (13.Re1 Be6=) 13...Bf5 (13...Be6 14.d5 Nd5 15.Bg7 (15.cd5?! Bb2 16.dc6 Ba1=) 15...Kg7 16.cd5 Qd5 17.Qc2+/-) 14.Nc2 (14.Re1 e3=) 14...Rc8 (14...Qd6 15.Nc5=) 15.Ne3 Bd7 (15...Be6 16.d5 Nd5 17.cd5 Bb2 18.Rb1+/-) 16.d5 Ne5 17.c5 Ba4 18.Rc1 (18.Qd4 Bd7+=) 18...Nfd7= 19.Ba3 Qg5 20.Kh1 f5 21.g3 f4=+ 22.gf4 Qf4 23.Ng2 Qf7 24.d6 Bc6 25.Nd4 Qa2 26.Nc6 Rc6 27.Bb4 Rf8 28.Rc2 Qb3-+ 29.Qd2 b6 30.Rfc1? bc5 31.Bc5? Nd3 32.Bd3 ed3 33.Ra2? Rc5 (34.Rc5 Nc5 35.Ra7 Rd8-+) 0–1. Fraemohs,Peter – Aguilar,Sebastian, CC.2002.0.00046, 2002.

9.dc5 dc5 10.b5 Re8 11.Nc3 b6 12.Qc2 Bb7 13.a4 a5 14.0-0-0 Nbd7 15.g4 Qe7 16.g5 Nh5 17.Rhg1 Rac8 18.Nde4 Be4 19.Ne4 Bb2 20.Kb2 Qe4 21.Qe4 Re4 22.Rd7 Rce8 23.Rb7 Rd8 24.Kc3 Re6 25.Rd1 Red6 26.Rd6 Rd6 27.Bf3 Ng7 28.Rb8 1–0. Urbanec – Goeth, Praha 1965.

9.0-0 d5 10.b5 (10.Nc3 Bf5+=) 10...Bf5 11.Nc3 Re8 12.Qb3 Be6 13.a4 Qd7 14.Rac1 a6 (14...dc4 15.Bc4 Bc4 16.Nc4+=) 15.bc6 (15.b6 Rd8+=) 15...Nc6 16.cd5 Nd5 (16...Bd5 17.Nd5 Nd5 18.Nc4+=) 17.Nce4+- Nf4 18.Qd1 Ne2 19.Qe2 Bg4 (19...Bd5 20.Nc5 Qe7 21.Qg4+=) 20.f3+- Qd5?? (better 20...Be6+-) 21.fg4+- Re4 22.Qf3 (22.Qf3 f5 23.gf5 gf5 24.Ne4 fe4 25.Qg4+-) 1–0. DEFFM – GuestYSJD, freechess.org, 2018.

9.b5 cb5 10.cb5 d5 11.Nc3 Be6 12.a4 a5 13.Qb3 b6 14.Rc1 Nh5 15.Ba3 Re8 16.0-0 Qg5 17.Bd6 Bh3 18.Bg3 Ng3 19.hg3 Be6 20.Rc2 Nd7 21.Rfc1 h5 22.Nf1 Bf8 23.f4 ef3 24.Bf3 Nf6 25.Ne2 Ne4 26.Be4 de4 27.Qb2 h4 28.gh4+= Qh4 29.Nf4 g5 30.Ne6 Re6 31.Rc6 Bd6 32.Qf2 Qh6 33.Qc2 Kg7 34.d5+/- Rf6 35.g3 Rh8 36.Qg2 Rf5 37.Rd1 Qg6 38.Qb2 Re5 39.Qe5 Be5= 40.Rg6 Kg6 41.Rc1 Rd8 42.Rc6 Kf5 43.Rb6 Rd5 44.Rc6 Rd1 45.Kf2 Ra1–/+ 46.Rc4 Ra2 47.Kg1 f6 48.b6 Rb2 49.Rc5 Rb6 50.Ra5 Rb2 51.Rb5 Ra2-+ 52.Rb4 Kg4 53.Re4 Kf3 54.Rc4 Bg3 55.Ng3 Kg3 56.Rc1 Ra4 57.Re1 g4 58.Rf1 Ra3 59.Re1 f5 60.Kf1 Kf3 61.e4 fe4 62.Kg1 e3 63.Rf1 Ke2 64.Kg2 Kd2 65.Rb1 Rc3 66.Rb2 Rc2 67.Rb1 e2 68.Kf2 g3! (68...g3 69.Kg3 Rc4-+) 0–1. Jacobi,Robin (1620) – Colpe,Malte (1960), GER–ch U14 Willingen, 2005. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 c6)

9.d5 a5 10.b5 cd5 11.cd5 Nbd7 12.0-0 Nc5 13.Na3 (13.Nc4 Re8=) 13...b6 (13...Bf5 14.Ndc4+=) 14.Rc1 Bb7 (worse is 14...Nd5 15.Bg7 Kg7 16.Ne4+=) 15.Bc4 Qe7 (worse is 15...Nd5 16.Bg7 Kg7 17.Ne4+/-) 16.Ndb1 Rac8 17.Nc3 Nfd7 18.Na4 Bb2 19.Nb2 Ne5 20.Qd4 Qg5 21.Kh1 Qh5 22.Rc2 Ng4 23.h3 Ne5 24.Be2 Nf3 25.Qf6 (25.gf3? Qh3 26.Kg1 ef3 27.Bf3 Qf3-+) 25...Bd5 26.Qd6 Qf5 (26...Ba2 27.Bc4 Rfd8 28.Qb6 Bc4 29.Nbc4 Qg5 30.Qa5 Nh4-+) 27.Nbc4+= (27.gf3?? ef3 28.Bc4 Bc4-+; 27.Qb6?! A) worse is 27...Ba2 28.Rfc1 (28.gf3 ef3 29.Kh2 Qe5 30.Kh1 Qh5-+) 28...Ne5 29.Bg4 (worse is 29.Rc5 Nd7 30.Qa5 Rc5 31.Rc5 Qc5–/+) 29...Ng4 30.hg4+=; B) 27...Qe5 28.gf3 ef3=) 27...Rfd8 28.Qg3 Qf6 29.Nb6 (better is 29.gf3 ef3 30.Bd1+=) 29...Qb6–/+ 30.gf3 ef3 31.Bf3 Qb7 32.Bd5 Qd5 (worse is 32...Rd5 33.Qf3+=) 33.Qg2 Qd3 34.Rfc1 Qa3 35.b6 Qb4 36.b7 Rc7 37.Rc4 Qb6 38.Kg1 Rb8 (better is 38...a4-+) 39.Qd5? (better is 39.Qg4–/+) 39...Ne6-+ 40.Rc6?? (40.Rc7 Nc7 41.Qc5 Qc5 42.Rc5 Rb7 43.Ra5-+) 40...Rc6 (better is 40...Qb7!? 41.Qe5 Rc6 42.Rc6-+) 41.Rc6 Qb7 0–1. Abreu Suarez,Isauro (2025) – Herrera Reyes,Jose Antonio (2165), Championship de Tenerife por Equipos, 2015.

10.0-0 a6 11.Qb3 Be6 12.h3 Re8 13.cd5 cd5 14.Na4 Nbd7 15.Rac1 Rc8 16.Rc8 Qc8 17.Rc1 Qd8 18.Qa3 Qe7 19.Rc7+/- Qd6? 20.Rb7+- Bf8 21.Nc5 Nc5? 22.dc5 Qd8 23.Ba6 d4 24.Bd4 Nd5 25.Ne4 f5 26.Nd2 f4 27.e4 Nc7 28.Nf3 Nb5 29.Bb5 (29.Bb5 Re7 30.Qa6+-) 1–0. usingprogram (1995) – meythaler (1615), kurnik, 2011.

10.0-0 Na6 11.Qb3 Nc7 12.a4 Kh8 13.b5 Ng4 14.Bg4 Bg4 15.f3 ef3 16.Nf3 Bf3 17.Rf3 Qg5 18.Raf1 Rae8 19.Bc1 Re7 20.Ne2?? Qg4?? 21.R1f2?? Ne6? 22.Rg3 Qh5 23.Nf4 Qf5? 24.cd5 Nf4 25.Rf4 Qd5 26.Qd5 cd5 27.Rg5?? Bh6-+ 28.h4 Rc8 29.Bd2 Bg5 30.hg5 Rc2 31.Bb4 Re3 32.Rf7 Ree2 33.Be7? Rg2 34.Kf1 Rgd2 35.Bf6 Kg8 36.Re7 Rd1 37.Re1 Re1 38.Ke1 Kf7 39.Kd1 Rc4 40.a5 h6! 41.b6 a6 0–1. nizinna – matyabc (1620), kurnik, 2011.

10.0-0 Re8 11.Qb3 Na6 12.a3 Nc7 13.Rae1 Be6 14.f3 ef3 15.Nf3 Bg4 16.Bc1 dc4 17.Bc4 Nfd5 18.e4 Nc3 19.Qc3 Bf3 20.Rf3 Bd4 21.Qe3 Be3 22.Be3 Ne6 23.Bh6 Qd4 0–1. barborski – freda, kurnik, 2012.

10.0-0 Ne8 11.a4 f5? (11...Qg5 12.f4 Qf5 13.Rc1=) 12.b5 Nf6 13.g3 g5 14.a5 Qc7 15.b6 Qf7 (15...ab6 16.ab6) 16.ba7 Ra7 17.Ba3 Re8 18.Bc5 Ra8 19.Na4 (19.cd5 cd5 (19...Nd5? 20.Bh5 Qe6 21.Nd5 cd5 22.Be8 Qe8 23.f3+-) 20.Nb5 Bf8+=) 19...Na6?? (better is 19...Ra5 20.Qc2 f4–/+) 20.Nb6+/- Rb8 21.Bd6 Nc7 22.Be5 Nd7?? 23.Bc7+- Nb6 24.Bb8 Nd7 25.Bd6 h5 26.Bh5 Qe6 27.Be8 Qe8 28.cd5 cd5 29.Qb3 Nf6 30.Qa4 Qe6 31.Be5 Bh6 32.Rac1 Ng4 33.a6! Bf8 34.ab7 Qh6 35.h4 Bb7 36.Qd7 Ba6 37.Qf5 gh4 38.Qg4 Kf7 39.Rc7 Ke8 40.Qd7 1–0. nizinna (1625) – auberge (1820), kurnik, 2011.

10.0-0 h5 11.b5 Bg4 12.bc6 bc6 13.Rb1 Re8 14.Ba3 (14.Bg4 Ng4 15.h3 Nf6+=) 14...Nbd7 (14...Qc7 15.Bc5+/-) 15.Bd6 Nf8 16.c5 N8h7 17.Rb7 Re6 (17...Be2 18.Qe2 Qa5 19.Rc1+/-) 18.Qa4 Rd6 (18...Be2 19.Ne2 Ne8 20.Nf4+-) 19.cd6+- Qd6 20.Rfb1 h4 (20...Be2 21.Ne2 Ng4 22.Nf4+-) 21.h3 (21.Ra7 Ra7 22.Qa7 Be2 23.Rb8 Nf8 24.Ne2 h3+-) 21...Bd7 (21...Be2 22.Ne2 c5 23.Qa3+-) 22.Ra7 Re8 (22...Ra7 23.Qa7 Ng5 24.Qb8 Bf8 25.a4+-) 23.Nb3 Ng5 24.Nc5 Bh3?! (24...Ne6 25.Nd7 Nd7 26.Rbb7+-) 25.Rb6 (25.gh3 Nh3 26.Kg2 Ng5+-) 25...Rc8?! (25...Ng4 26.Bg4 Bg4 27.Qc6 Qc6 28.Rc6+-) 26.Ra8 (better is 26.gh3 Nh3 27.Kg2+-) 26...Bg2?? (better is 26...Qd8 27.Rc8 Bc8 28.Qc6 Be6+-) 27.Rc8 (27...Kh7 28.Rbc6+-) 1–0. Astatine – Aedes (2835), ICC, 2002.

10.0-0 h5 11.b5 h4 12.bc6 bc6 13.cd5 (13.h3 Nbd7+/-) 13...cd5+= 14.Rc1 Bf5 (14...h3+=) 15.Nb5 (15.Ba3 h3 16.g4 Bc8+/-) 15...Nbd7 (15...a6 16.Qa4=+) 16.Nd6 (16.Ba3 h3+/-) 16...Be6+= 17.Ba3 (17.h3 Qb6 18.Ba3 Qa5+=) 17...Qa5= 18.Nb5 (18.Nb1 h3=) 18...Rfb8=+ 19.Nb3 Qa4 (19...Qa6!? 20.Nc5 Nc5 21.Bc5 Qa5=+ (21...Rb5? 22.a4+-)) 20.Nc5+= Nc5 21.Bc5 (21.Rc5 Qa5 22.Qe1 Qa6+=) 21...Qd1 (21...Qa5 22.Rb1=+) 22.Rfd1= Ne8 (22...Bg4 23.Bg4 Rb5 24.Bh3=) 23.Na7 (23.Rb1!?+=) 23...Bf8 24.Nc6 (24.Nb5 Ra2 25.Nc3 Rab2=) 24...Rb2=+ 25.Bf1 Raa2 26.Ne7 (26.Rb1!?=) 26...Kg7-/+ 27.Nc6 (27.Rb1 Rf2 28.Rb8 Be7 29.Be7 Nf6-/+) 27...Rf2 28.Bf8 (28.Rb1 Nf6 29.Rb7 Ng4 30.Bf8 Kf8-+) 28...Kf8-+ 29.Ne5 Nf6 (29...Nd6 30.Ra1-+) 30.h3 (30.Rc7 Rfb2-+) 30...Nh5 31.Rc7?? (better 31.Ra1-+) 31...Ng3 32.Rb1 (32.Ng6 fg6 33.Ra7 Rab2-+) 32...Nf1 (32...Rf1?! 33.Rf1 Nf1 34.Kf1-/+) 33.Ng6 Kg7 34.Nf4 (34.Nh4 Ne3 35.Ra7 Rad2-+) 34...Ne3 35.Ne6 (35.Ra7 Rad2 36.Ne6 Kf6-+) 35...Kf6 36.Nf4 Rf4 37.Rbb7 (37.Kh1-+) 37...Rg2 38.Kh1 Rf1 0-1. shahramagai (1955) - Lance5500 (2445), lichess.org, 2016. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.d4 d6 6.c4 e5 7.Be2 e4)

10.a4 Re8 (10...Be6 11.0-0=) 11.a5 Na6 12.Qb3 Nc7 (12...Qe7 13.b5 cb5 14.Nb5 dc4 15.Bc4+/-) 13.b5 Ne6 (13...cb5 14.cb5 Bh6 15.0-0+=) 14.Na4 (14.a6 cb5 15.Nd5 Nd5 16.cd5 Nc7=) 14...dc4 (14...cb5 15.Qb5 Nc7 16.Qb3=) 15.Bc4 cb5 16.Bb5 Bd7 (16...Qa5?? 17.Be8 Ne8 18.Nb6 ab6 19.Ra5 ba5 20.Ne4+-) 17.Bc4 (17.0-0 Bb5 (worse is 17...Qa5 18.Bd7 Nd7 19.Ne4+/-) 18.Qb5 Bf8+=) 17...Bc6 (17...Rc8 18.Nc3=) 18.0-0 (18.Nc5 Nd5=) 18...Bh6 (18...Qa5 19.Nc3 Qg5 20.Nb5=) 19.Rfe1 Qd7? (19...Bf8 20.Rec1+=) 20.Be6 (better is 20.d5!? Nd5 21.Ne4+-) 20...fe6 (20...Qe6 21.Qb4=) 21.Nc5 (21.Nc4 Red8+=) 21...Qf7 22.h3 Bd5 23.Qb5 a6 24.Qe2 Rac8 25.Rac1 g5 (25...Bf8 26.Ndb3=) 26.Na4 Bf8 27.Nb6 Rc1 28.Rc1 Qg6 29.Rc8 (better is 29.Ndc4!?+=) 29...Rc8= 30.Nc8 g4 31.hg4 Ng4 32.Nf1 h5 33.Bc3 Qf5 34.Ng3 Qg6 35.Be1 h4 36.Nf1 Bc6 37.Qc4 Qf7 38.Qe2 Qf5 39.Nh2 Nf6 40.Qc4 Kh7 41.Qb3 Kg6 42.Qb6 h3 43.Qd8 Qg5 44.g3 Nd7 45.Qe8= Kg7 46.Qe6 Nf6 47.Nb6 Qh5 48.g4 Qb5 49.d5?? Qb1-+ 50.dc6 Qe1+= 51.Nf1 h2! 52.Kh2 Qf2 53.Kh3 Qf1 54.Kh4 Qh1 55.Kg3 Bd6! 56.Qd6 Qf3 57.Kh2 Ng4 58.Kg1 Qf2 (58...Qf2 59.Kh1 Qf1) 0–1. Mittelbachert,Ulrich – Parado,Dominado (2110), Sueder Sommer op, 2000. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 c6 9.Nc3 d5)

10.b5 Be6 11.a4 a6 12.bc6 bc6 13.Ba3 Re8 14.0-0 Nbd7 15.Rb1 Qc7 16.Qb3 Reb8 17.Qa2 Qa5 18.Nb3 (better is 18.Qc2!?+=) 18...Qc3+= 19.Rfc1 Rb3 20.Rc3 Rc3 21.c5 h5 22.Bb4 Rc4 23.Ba5 Ra7 24.h3 Kh7 25.Kf1 Ne8 26.Bc4 dc4 27.Rb4 Nef6 28.Qb1 c3 29.Qc2 Nd5 30.Rb1 f5 31.Bc3 Ne3 32.fe3 Bc4 33.Kg1 Bd3 34.Qc1 Bb1 35.Qb1 Bh6 36.Bd2 Rc7 37.Kf2 Nf6? (better is 37...Bg5+-) 38.Qb6 Nd5 39.Qa6 f4 40.ef4 Nf4 41.Bf4 Bf4 42.g3 Bd2 43.Ke2 e3 44.Qb6 Rf7 45.Qc6 Rf2 46.Kd3 Bc1 47.Qd7 Kh6 48.c6 e2 49.Qe8 1–0. Sergeev,Vladimir (2485) – Keller,Manfred (2190), Triesen LIE, 2012. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5 7.Be2 e4)

10.b5 Re8 11.Qb3 h5 12.Ba3 Bf8 13.Bf8 Rf8 14.Qa3 Be6 15.bc6 bc6 16.0-0 Bg4 17.Rab1 Be2 18.Ne2 Qd7 19.Qa5 Rc8 20.Rfc1 Qd8 21.Qd8 Rd8 22.Rb7 Rd7 23.Rcb1 Rb7 24.Rb7 Nbd7 25.Nc3 Rb8 26.Rb8 Nb8 27.f3 ef3 28.gf3 dc4 29.Nc4 Kf8 30.Kf2 Ke7 31.h4 Nfd7 32.e4 Nf6 33.Ke3 Ke6 34.Kf4 Nbd7 35.Na5 Nb8 36.Kg5 Nh7 37.Kh6 Nf6 38.Nc6 Nc6 39.d5 Kd7 40.dc6 Kc6 41.Kg7 Nd7 42.f4 Kc5 43.Ne2 f6 44.Kg6 Kc4 45.Kf5 a5 46.Ng3 a4 47.Nh5 Kc3 48.Nf6 Nf8 49.Nd5 Kb2 50.Nb6 a3 51.Nc4 Ka2 52.h5 Kb3 53.Na3! Ka3 54.e5 Kb4 55.e6 (55...Ne6 56.Ke6+-) 1–0. Melich,Jindrich (2160) – Knizek,Jan (2210), CZE–chTV, 2000.

10.Qc2 Nbd7 11.a4 b6 12.b5 Bb7 13.Ba3 Re8 14.Bd6 c5 15.Bg3 cd4 16.ed4 e3 17.fe3 Ne4 18.Nce4 de4 19.0-0 f5 20.a5 Rc8 21.a6 Ba8 22.Rac1 Nf6 23.Qb3 Kh8 24.c5 bc5 25.dc5 Qd2 26.Rfe1 Qd5 27.Red1 Qb3 28.Bf4 Nd5 29.Bc4 Qb4 30.Bd5 Bd5 31.Rd5 Qb5 32.Bd6 Qe2 33.Rdd1 Qe3 34.Kh1 Be5 35.Re1 Qd4 36.Rcd1 Qb2 37.Rb1 Qa3 38.Ra1 Qb4 39.Reb1 Qd2 40.Rd1 Qf4 41.Be5 Qe5 42.c6 Rc6 43.h3 Rc2 44.Rg1 e3 45.Rae1 1–0. Adamkosh (1930) – tiptop55 (1930), lichess.org, 2020.

10.a4 a5 11.b5 Nbd7 12.Qc2 Qe7 13.bc6 bc6 14.0-0 h5 15.Ba3 Nf8 16.Rab1 Bf5 17.Rb6 Qc7 18.Rfb1 Rab8 19.Rb8 Rb8 20.Rb8 Qb8 21.Qb1 Qc7 22.Bd1 N8d7 23.Bc2 d5 24.c5 Ng4 25.g3 Bh6 26.Qe1 Be6 27.Nb3 f5 28.Nd1 f4 29.ef4 1–0. Van Belle,Michel – Robiolle,Jean Marie, corr AJEC61, 1977.

10.b5 h5 11.Qc2 Bf5 12.bc6 bc6 13.Ba3 Qc7 14.0-0 Nbd7 15.Rab1 a6 16.Rb3 c5 17.Nd5 Qd8 18.Nf6 Bf6 19.d5 Be5 20.Bb2 Qh4 21.Be5 Ne5 22.Qc3 Bg4 23.f3 ef3= 24.Nf3 Bf3 25.gf3 Rab8 26.Rfb1 Rb3 27.Rb3 g5 28.e4 Qf4 29.Qe3 Qe3 30.Re3 Rb8 31.Ra3 Rb6 32.Kf2 Kg7 33.Ke3 Ng6 34.Bd1 Kf6 35.Ba4 Nf4 36.Rb3 Rb3 37.ab3= Ke5 38.Bd7 a5 39.Bf5? Ng2–/+ 40.Kf2 Nh4 41.Bd7 Kf4 42.Be8 Nf3 43.Bf7 Nd4 44.Bh5 Nb3 45.Ke2 Ke4 0–1. Eising,Johannes – Janosevic,Dragoljub, Solingen, 1968.

10.Qc2 Qe7 11.b5 c5 12.d5 h5 13.h3 h4 14.a4 Bf5 15.g4 hg3 16.fg3 g5 (16...Qe5 17.Rg1+=) 17.0-0-0 Nbd7 18.Rdf1 Bg6 19.h4 g4 20.Rf4 (20.Rh2 a6=) 20...Bh6=+ 21.h5 Bf4 22.gf4 Bf5 23.Nf1 a6 24.Ng3 Bh7 25.Nd1 ab5 26.ab5 Ra2 27.Nf2 Nb6 28.Qb3 Rea8 29.h6 R8a4=+ 30.Qc3 Rb2 31.Qb2 Nc4 32.Bc4 Rc4 33.Kd2 Ne8 34.Rh5 f6 35.Qa2 Rb4 36.Ke2? Qd7-+ 37.Kf1 Qb5 38.Kg2 Bg6 39.h7 Bh7 40.Qa8 Bg6 41.Rh4 Rb1 42.Rg4+/- Kf7 43.Rh4?? Qd7 44.Nfe4–/+ Qe7?? 45.f5+- Bf5?? 46.Nf5 Rb2 47.Kf3 Qe5 48.Nfd6 (48.Nfd6 Kg8 49.Rg4 Kf8 50.Nf6 Qf6 51.Rf4 Qf4 52.ef4 Rb3 53.Ke4+-) 1–0. Anastasian,A (2555) – Mona,K (2075), 13th Dubai Open, 2011.

10.g4 h6 (10...a5 11.b5 d5 12.g5+-) 11.h4+= d5 (11...c5 12.bc5 dc5 13.g5 cd4 14.ed4=) 12.cd5 (12.g5 hg5 13.hg5 Nh7+=) 12...cd5 (12...Nd5 13.Nde4 Nb4 14.h5=) 13.b5 (13.g5 hg5 14.hg5 Nh7+=) 13...Be6 14.Rg1 White intends g5 (14.Rc1 Nbd7=) 14...Qd6 (14...Nh7 15.g5 hg5 16.hg5 Ng5 17.Rc1=+) 15.Rg2 (15.g5 hg5 16.hg5 Qh2=) 15...a6 (15...Nfd7 16.f3 ef3 17.Bf3=) 16.Qb3 (16.g5 hg5 17.hg5 Nh7=) 16...ab5 (16...Nh7 17.Rc1=) 17.Nb5 Qd7 (17...Qd8 18.Ba3=) 18.g5+= hg5 19.hg5 Nh7 20.f4 (20.Ba3 Nc6=) 20...ef3= 21.Nf3 (21.Bf3 Nc6 22.Nc3 Bh3=+) 21...Nc6 22.Kf2 (22.Rh2!?=) 22...Na5–/+ 23.Qb4 Nc4 (23...Bf8 24.Qc3 Rec8 25.Qd2–/+) 24.Bc4 dc4 25.d5? (better 25.Nc3–/+) 25...Bd5-+ (25...Qd5?! 26.Bg7 Kg7 27.Nc7=) 26.Bg7 Bf3 (26...Kg7 27.Nd6 Re6 28.Nc4 Bf3 29.Kf3 Qd5 30.Kf2 Ng5 31.Rh2-+) 27.Rg3 (27.Kf3 Qh3 (27...Kg7?! 28.Qc5-+) 28.Kf2 Qe3 (28...Kg7?! 29.Qc3 Kg8 30.Nc7 Ng5 31.Rg5 Qh2 32.Kf3 Qc7 33.a4-+) 29.Kf1 Re4-+ (29...Kg7?! 30.Qc4 Ng5 31.Qc3 Qc3 32.Nc3-+)) 27...Bc6 28.Qc3 (28.Nd6 Ra4 29.Qc5-+) 28...Qf5 29.Kg1 (29.Ke2 Bb5 30.Bh8 f6 31.gf6 Kf7-+) 29...Ra2!! 30.Ra2 (30.Ra2 Qb1 Double attack (30...Qb1 Decoy)) 30...Qb1 (30...Qb5?! 31.Ra5 Qb1 32.Kf2=+; 30...Bb5 31.Rb2 Rd8 32.Bh6 Rd1 33.Kh2–/+) 31.Kf2 Qa2 (31...Bb5?! 32.Rb2 Qf5 33.Kg1 Ng5 34.Bh6=; 31...Qb5?! 32.Ra5 Qb3 33.Qb3 cb3 34.Bd4=) 32.Ke1 Ra8 33.e4 (33.Qb2 Bb5 34.e4-+) 33...Qb1 (33...Qb1 34.Ke2 Ra2 35.Qd2 Bb5 36.Qa2 Qa2 37.Kf3 Kg7-+) 0–1. Savitski,Andrei (2185) – Nikitenko,Mihail (2395), 82. ch–BLR, 2016. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.Be2 e5 7.c4 e4 8.Nfd2 c6 9.Nc3 Re8)

10.h3 Na6 11.a3=.

10.h3 h5 11.a4+= Nbd7 12.Qc2 Qe7 (12...a5 13.b5+=) 13.c5 (13.a5 Nb8+=) 13...d5 14.b5 Nf8 15.a5 a6 16.bc6 bc6 17.Na4 Bf5 18.Nb6 Ra7 19.Qa4 Qe6 20.Nb1 g5 21.Nc3 N6d7 (better is 21...Ng6!?+/-) 22.Bh5+- Qh6 23.g4 (23.Be2 g4+-) 23...Bh7 24.h4 (better is 24.Rb1+-) 24...Qf6?? (24...Rc7 25.Qd1+/-) 25.0-0-0?? (better is 25.hg5!? Qe6 26.Rb1 Ng6+-) 25...Qf2? (better is 25...gh4 26.Rd2 Rd8+=) 26.Rde1+- Nb8 27.Rhf1 Qh4 28.Ncd5! Rd8 29.Nb4 Ne6 30.Qb3 Rf8 31.Bf7! Raf7 32.Qe6 Kh8 33.Rh1 Qg3?! 34.Nc2 Rf2 35.Reg1 Qf3 36.Qc4 Rg2? 37.d5+- Bb2? 38.Kb2 Rg1 39.Rg1 cd5 40.Qd4 Kg8 41.Qd5 Kh8 42.Qd4 Kg8 43.c6! Qf7 44.Qc3 Qc7 45.Nd5 Qd6 46.Rd1 Bg6 47.Nf6!! Qf6 48.Qf6 Rf6 49.Rd8 Kg7 50.c7 (50.c7 Nc6 51.Rd7 Rf7 52.c8Q+-; 50.Rb8?! Rc6 51.Nd4 Rf6+-) 1–0. Kasparov,Sergey (2490) – Klim,Kamil (2355), Rewal Poland, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4)

9.a3 a5 10.b5 Ne7 (10...Nb8 11.Nc3 Re8 12.0-0+=) 11.0-0 (11.Nc3 d5+-) 11...Nf5 (11...d5!?+=) 12.Nc3+- h6 (12...Qe7 13.Qc2+-) 13.Nde4 Ne4 14.Ne4 d5 (14...Re8 15.Bd3+-) 15.cd5+- Qd5 16.Nc3 Qd8 17.Bf3 (17.Bd3 Nd6+-) 17...Nh4 (17...Nd6 18.Rc1+-) 18.Bd5 Qg5 19.f4 (19.Rc1 Re8+-) 19...Qd8 20.Qd2 (20.Rc1 Nf5 21.Re1 Re8+-) 20...Re8 (20...Nf5 21.Rad1+-) 21.e4+- c5 (better 21...Ra7+-) 22.dc5 g5 (22...Be6+-) 23.fg5 hg5 (23...Be6 24.gh6 Be5 25.Na4+-) 24.Rf7 Be6 (24...Kh8 25.Rd1 Rf8 26.Bb7 Qd2 27.Rd2 Rf7 28.Ba8+-) 25.Rb7 Kh8 (25...Be5+-) 26.Na4 Bd5 (26...Rg8 27.Bg7 Rg7+-) 27.Rg7 Bf7 28.Rg5 Kh7 (28...Re5 29.Be5 Qf6 30.Bf6 Kh7 31.Rg7 Kh8 32.Qh6) 29.Rg7 (29.Rg7 Kh8 30.Qh6) 1–0. DEFFM – GuestFYMT, freechess.org, 2018.

9.a3 Re8 10.Nc3 d5 11.cd5+- Nd5 12.Nde4 Nc3 (12...Bf5 13.Ng3 Be6 14.0-0+-) 13.Nc3 Ne7 (13...a6 14.0-0+-) 14.0-0 Nd5 (14...Be6 15.Na4+-) 15.Bf3 (15.Nd5 Qd5 16.Rc1 c6+-) 15...Nc3 (15...Be6 16.Qc2+-) 16.Bc3 Rb8 (16...c6 17.Rc1+-) 17.Qb3 (17.Rc1 Bf5+-) 17...Qg5 (17...Bf5 18.Rac1+-) 18.Bb2 (18.Qa4 c6 19.Qa7 Be6+-) 18...Bd7 (18...c6 19.Rfd1+-) 19.Rac1 (19.d5 Rbc8+-) 19...c6+- 20.Rc5 Qd8 (20...Qf6 21.Rb1+-) 21.Rfc1 (21.Rd1 Qf6+-) 21...b6 (21...Rc8+-) 22.R5c2 (22.Rc6?! Bc6 23.Bc6 Re7+-) 22...Be6 (22...Rc8 23.a4+- (worse 23.Bc6 Bc6 24.Rc6 Rc6 25.Rc6 Bd4 26.Bd4 Qd4+-)) 23.Qc3 (23.Qa4!? Bf5 24.Rd2 c5+-) 23...Bd5 24.e4 Be4 25.Be4 Re4 26.Qc6 Qe8 (26...Qe7 27.h3+=) 27.Rf1 (27.Qe8 Rbe8 28.Rc8 Kf8+-) 27...Re1 (better 27...Qc6!? 28.Rc6 Bd4 29.Bd4 Rd4=) 28.Qe8+- Rbe8 29.g3 (29.d5 Bb2 30.Rb2 Kf8+-) 29...R8e2 (29...R1e2 30.Rfc1 Rc2 31.Rc2 Rd8+-) 30.Re2 (better 30.Rc8!? Re8 31.Re1 Rc8 32.Kf1+-) 30...Re2= 31.Rb1 Rd2 32.Kf1 Bd4 33.Bd4 Rd4 34.Ke2 Kf8 (34...h6 35.Rc1=) 35.Ke3 (35.Rc1 a5+=) 35...Rc4= 36.Kd3 Rc7 (36...b5 37.Re1=) 37.Re1 (37.b5 Rd7 38.Ke3 Re7 39.Kd2 Rd7 40.Kc3 Rc7 41.Kb3 Rc5=) 37...f6 (37...Rd7 38.Kc3=) 38.h4 (38.b5 Rd7 39.Kc3 Rc7 40.Kb3 Rc5+=) 38...h6 (38...b5 39.Re6 Rd7 40.Ke4 f5 41.Ke5+=) 39.Re2 (39.b5 Rc5 40.a4 Rd5 41.Kc4 Rd2=) 39...Kf7 (39...b5 40.Kd4=) 40.Rc2 (40.b5 a6=) 40...Rc2 41.Kc2 Ke6 42.Kc3 (42.Kd3 a6=) 42...Kd5 43.Kd3 Kd6 (43...b5 44.g4=) 44.Kd4 (better 44.h5 gh5 45.Ke4=) 44...Kc6 (44...b5 45.g4=) 45.a4 (45.h5!? gh5 46.Ke4+=) 45...a6 (45...b5 46.a5 h5 47.f3=) 46.f4 (46.g4 Kd6=) 46...Kd6 (46...b5 47.a5 Kd6 48.g4=) 47.g4 h5? (47...f5 48.gf5 gf5 49.h5=) 48.gh5 (better 48.f5 hg4 49.fg6+-) 48...gh5= 49.b5 ab5 50.ab5 f5 51.Kc4 Ke6 52.Kd4 Kd6 ½–½. jaddwarrior (2045) – Kemik (1855), ChessWorld.net, 2017.

9.Nc3 Bf5 10.f3 ef3 11.Bf3 Nb4 12.0-0-+.

9.Nc3 c6 10.0-0 Re8 11.Rc1 a6 12.Qb3 Be6 13.a3 dc4 14.Qc2 Nbd7 15.Nc4 Bc4 16.Bc4 Nb6 17.Bb3 Nbd5 18.Qe2 Nc3 19.Rc3 Nd5 20.Rcc1 Qg5 21.h3 Rad8 22.Rc5 Bf8 23.Rc2 Re6 24.Qg4 Qg4 25.hg4 Kg7 26.g3 h6 27.Kg2 Kf6 28.Kh3 Be7 29.Rh1 Ra8 30.Kg2 Kg7 31.Kf1 a5 32.b5 a4 33.Ba2 Rd8 34.bc6 Rc6 35.Bb1 Rb6 36.Kg2 Rb2 37.Rb2+/- Nc3 38.Rb7+- Ba3 39.Bc2 Bf8 40.Ra7 a3 41.Bb3 Rb8? 42.Rf7 Kh8 43.g5 h5 44.Be6 Re8 45.g4 Re6 46.Rf8 Kg7 47.Ra8 (47...Nb5 48.Rb1+-) 1–0. Blankenberg,Bruno – Dopper,Johan, corr TKM/SF/02, 2001.

9.cd5 Qd5 10.Nc3 Qg5 11.Nce4 Ne4 12.Ne4 Qg2 13.Bf3 Qh3 14.Nc5 Nc6 15.b5 Na5 16.Bc3 Nc4 17.Nb7 Rb8 (17...Ne3 18.fe3 Bb7 19.Bb7 Qe3 20.Kf1 Qc3 21.Ba8 Ra8–/+) 18.Qe2?? (better is 18.Na5 Na5 19.Ba5 Rb5 20.Bc7+=) 18...Rb7–/+ 19.Bb7 Bb7 20.Rg1 Nd6 21.0-0-0? (better is 21.Rg3 Qh2 22.Qf1-+) 21...Bf3 22.Qf1 Qf5 23.Rd2 Bd5 (23...Nb5 24.Qc4-+) 24.Bb4 Rc8 (24...Rb8!? 25.Bd6 cd6 26.Qe2-+) 25.a4? (better is 25.Rc2-+) 25...Bb3 (25...Bb3 26.Qd3 Qd5-+ (26...Ba4?! 27.Qf5 Nf5 28.Ra2 Bb5 29.Ra7–/+); 25...Ne4!? 26.Rc2 Bb3 27.Qe2-+) 0–1. Labahn,Wolfgang – Gehrmann,F, Espelkamp, 1981.

9.0-0 d5 10.b5 c6? 11.Ba3+- Qc7 12.Bf8 Bf8 13.cd5 cd5 14.Qc1 Qd8 15.Qc3 Bf5 16.Rc1 Bd6 17.Nb3 b6 18.N1d2 Nbd7 19.Qc6 Nf8 20.Qb7 Rb8 21.Qa7 Ra8 ½–½. Buss,Michael – Lo Presto, corr USCF, 1989.

9.Nc3 Nbd7 10.Qc2 Re8 11.a4 11...Nf8 (11...a5 12.ba5 Nb8 13.0-0 Ra5 14.Qb3=) 12.h3 (12.a5 c6+=) 12...h5 (12...a5 13.ba5 Ra5 14.0-0+=) 13.b5 (13.a5 a6+=) 13...Bf5 14.a5 Ne6 15.Qd1 (15.Nce4? Ne4 16.Ne4 Nd4 17.Bd4 Bd4 (17...Be4?! 18.Qc3 Bg2 19.Rg1 Bd4 20.Qd4–/+; 17...Qe4?! 18.Qe4 Be4 19.Bg7 Kg7 20.f3=) 18.ed4 Be4-+ (18...Qe4?! 19.Qe4 Be4 20.Kd2+=)) 15...h4 16.a6 b6 (16...c6 17.Bg4+=) 17.Na2 (17.Bg4 A) 17...Ng4 18.hg4 Qg5 19.gf5 Qg2 20.Rf1 (20.fe6?! Qh1 21.Ke2 Qd1 22.Rd1 Re6+-; 20.Rh4?! Nd4 21.Qg4 Nc2 22.Kd1 Qg4 23.Rg4 Na1+-) 20...Nd4 21.fg6 fg6 22.ed4+-; B) 17...Kh7+=) 17...d5 (17...Nd7 18.Nc3=) 18.Qb3 Rad8 (18...dc4!? 19.Bc4 Nh5+=) 19.Nb4+/- Qd7 20.Nc6 Ra8 21.cd5 Nd5 22.Nc4 f6 23.Nd2 Kh7 24.Ba3 Bh6? 25.Nf1?? Nd8= 26.Nh2 Be6 27.Ng4= Bg7 28.Qc2 Nc6 29.bc6 Qd8 30.Bc4 f5–/+ 31.Ne5 Qg5 32.Qb3 Rad8-+ 33.0-0-0 f4 34.Nd7?? fe3 35.fe3 Ne3 36.Be6 Nd1 37.Kd1 Bh6 38.Kc2 Qg2 39.Kb1 Qh1 40.Ka2 Qg2 41.Bb2 Bc1 42.d5 Qb2 43.Qb2 Bb2 44.Kb2 Kg7 45.Bg4 e3 46.d6 e2 (46...e2 47.Be2 Re2 48.Kc3 cd6 49.Nb6 ab6-+) 0–1. Kasparov,Sergey (2490) – Klepaczka,Tomasz (2195), Rewal Poland, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4)

9.g4 Ne8 10.Nc3 f5 11.Nd5 Qf7 12.g5 c6 13.Nf4 Na6 14.Qb3 Nac7 15.d5 c5 (better is 15...a5!?=) 16.bc5+/- dc5 17.h4 Nd6 (17...b6 18.h5 Bb7 19.hg6 hg6 20.Bg7 Qg7 21.0-0-0+-) 18.h5+- Bd7 19.a4 (19.0-0-0 Rfd8 20.Bg7 Qg7 21.hg6 hg6+-) 19...Bb2 (better is 19...Rab8!?+/-) 20.Qb2+- Qg7 21.Qg7 Kg7 22.hg6 hg6 23.Ng6! Kg6 (23...Kg6 24.Rh6) 24.Rh6 Kf7 (24...Kg7!? 25.Rd6 Rad8+/-) 25.Rd6+- Ke7 26.Rh6 Ne8 27.Bh5 Rg8 28.f4 Rg7 (better is 28...ef3 29.Nf3 Rd8+/-) 29.Be8+- Be8 30.a5 1–0. Kalinitschew,Sergey – Sislian,Hanno, Schleswig Holstein–ch M, 2001. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 e4 8.Nfd2 Qe7)

9.0-0 c5=.

9.0-0 d5 10.cd5 (10.Nc3 dc4 11.Qc2 Be6+=) 10...Nbd7 (10...Nd5 11.Nc3=) 11.Nc3 (11.d6 cd6 12.Nc3 Nb6+=) 11...Nb6= 12.Qb3 a6 (12...Nbd5 13.Bc4 c6 14.b5+=) 13.b5 (13.Bc4 Nc4 14.Qc4 b5=) 13...a5 14.a4 Bf5 (14...Nbd5 15.Bc4 c6 16.Rab1+=) 15.Rfc1 (15.Bc4 Qd7+-) 15...Qd7 (15...Nfd5 16.Nd5 Nd5 17.Ba3+=) 16.Nc4 (16.Bc4 Rad8+-) 16...Nfd5 (16...Nbd5 17.Ne5 Qd8 18.Nd5 Nd5 19.Rc5+=) 17.Nd5 Nd5 18.Ne5 Qd8 (18...Qd6 19.Ba3 Qd8 20.Rc5+=) 19.Rc5 Be6 20.Bc4 Nb6 21.d5 Bf5 22.d6 (22.Nf7 Kf7 23.d6 Nc4 24.Qc4 Kf8 25.Rc7 Bd7 26.Bg7 Kg7 27.Rb7 Rc8+-) 22...Nc4 23.Nf7 Kf7 24.Qc4 Kf8 25.Bg7 (25.Rc7 Bd7 26.Bg7 Kg7 27.Rb7 Rc8+-) 25...Kg7 26.Rc7 (26.dc7?! Qf6 27.Qd4 Rec8+=) 26...Bd7 (26...Kh6 27.Qd4+-) 27.Rb7 Rc8 28.Qd4 (28.Rc7 Kh6 29.Rd1 Bg4+-) 28...Kh6 29.b6 (29.Rd1 Re6+-) 29...Rc6 30.Rc7 Re6 31.Rd1 Qe8 32.b7 Red6 33.Qd6 Rd6 34.Rd6 Qe5 (34...Bg4 35.Rc1 Qb8+-) 35.Rcd7 Qc3 Do you see the mate threat? 36.Rd1 (better 36.g4 Qe1 37.Kg2 Qe2+-) 36...Qb3 37.h3 (37.h3 Qb2 38.R1d5 Qa1 39.Kh2+-) 1–0. Katalymov,Boris N – Zhukhovitsky,S, Stalinabad Soviet Union, 1958.

9.0-0 Nbd7 (--> 7.Be2 Nbd7 8.0-0 e4 9.Nfd2 Re8).

9.0-0 h5 10.Nc3 h4 11.h3 Nbd7 (11...Bf5 12.Qb3=) 12.Qc2 Increases the pressure on e4 12...Qe7 13.a4 (13.c5 d5+=) 13...Nf8 (13...a5 14.ba5 Ra5 15.Nb5+=) 14.b5 N8h7 15.Ba3 Ng5 16.c5 Nh3 (16...Be6 A) worse 17.Nde4 Nfe4 18.Ne4 Bf5 19.cd6 A1) 19...Be4 20.de7 (worse 20.Qc7 Qe6 21.Bc4 Qf5-/+) 20...Bc2 21.Rfc1 Ba4 22.Bb4+=; A2) worse 19...Qe4 20.Qe4 Re4 21.dc7=+; A3) 19...cd6-+; B) worse 17.Nce4 Nfe4 18.Ne4 Bf5-+; C) 17.Nc4 Nf3 18.Kh1+=) 17.gh3 Bh3 18.cd6 cd6 19.Rfc1 Qe6 20.Bf1 (20.Nc4 Rad8+=) 20...Rac8 (20...Bf1 21.Kf1 Rac8 22.Qb3=+) 21.Qd1 (21.Bh3!? Qh3 22.Bd6=) 21...Bg4= 22.Be2 Bh3 23.b6 a6 (23...ab6 24.Nb5 Combination) 24.a5 (24.Kh1=) 24...g5 (24...d5 25.Bf1=) 25.Bb2 (25.Na4!?+/-) 25...g4 (25...Qf5 26.Rc2=) 26.d5 Qf5 (26...Nd5 27.Nce4 Deflection) 27.Bf1 (27.Nc4 g3 28.fg3=+) 27...Bf1 (27...Nd5 28.Nd5 Rc1 29.Rc1 Bb2 30.Rc7+-) 28.Nf1 (28.Qf1 h3=+) 28...Nh7 29.Ne2?? (29.Nh2 g3 30.fg3 hg3 31.Ng4-+) 29...Bb2-+ 30.Rc8 Rc8 31.Rb1 (31.Neg3 hg3 32.Ng3 Qf3-+) 31...Be5 32.Nd4 Bd4 33.Qd4 (33.ed4 Ng5 34.Ne3 Nh3 35.Kg2 Qf2 36.Kh1-+) 33...Ng5 34.Nh2 g3 35.fg3 (35.Qg7 Kg7 36.fg3 Rc2 37.Rf1 Qh3 38.Rf2 Qg3 39.Kh1 Qf2 40.Nf3 Qg2) 35...hg3 (35...Rc2 36.Rf1 Qh3 37.Qh8 Kh8 38.Rf2 Qg3 39.Kh1 Qf2 40.Nf3 Qg2) 36.Nf1 (36.Qd2-+) 36...Nf3 (36...Qf2 37.Kh1 g2 38.Kh2 gf1Q) 37.Kg2 Nd4 38.ed4 (38.Rc1 Qf3 39.Kh3 g2 40.Kh2 Rc1 41.ed4 gf1B 42.Kg1 Qg2) 38...Qf3 39.Kg1 (39.Kh3 Kg7 40.Kh4 Rh8 41.Kg5 f6) 39…Rc2 (39...Rc2 40.Nd2 Rd2 41.Rc1 Qg2; 39...Qf2 40.Kh1 Rc2 41.Ng3 Qg2) 0-1. darkobalov (2080) - Lance5500 (2630), lichess.org, 2020. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.d4 d6 6.e3 e5 7.Be2 e4)

9.a3 Nbd7 10.g4 g5 (10...h6 11.Rg1=) 11.h4+= h6 12.Qc2 c6 (12...a5 13.hg5 hg5 14.Nc3+=) 13.hg5 (13.Nc3 d5+=) 13...hg5+= 14.Nc3 Qe7 15.b5 (15.Rd1 a5+=) 15...Nf8 (15...a6 16.bc6 bc6 17.Rb1+=) 16.Qa4 (16.bc6 bc6 17.Rb1 Rb8+/-) 16...Bd7 17.bc6 bc6 18.Qa5 N8h7 (18...Reb8 19.Ra2 Ne6 20.Bd1+= (< 20.Nde4 Ne4 21.Ne4 Nd4=+)) 19.Rb1 Reb8 20.Bd1 c5 (20...Rb7 21.Bc2 Rab8 22.Bc1 Rb1 23.Bb1 Bg4 24.Qa4= (24.Nde4 Rb1 25.Nf6 Bf6 26.Nb1 Qe4–/+; 24.Be4?! Ne4 25.Nce4 f5=)) 21.dc5+/- dc5 22.Qc7 Nf8 23.Qh2 Qe8 24.Nb5 Bb5 25.cb5 Rd8 26.Bc2+- Rd2 27.Kd2 Qe6 28.Qc7 Rc8 29.Qa7 N8d7 30.Qb7 Nb6 31.Ke1 Nfd5 32.Bg7 Kg7 33.Rd1 Nc3 34.Rd2 1–0. Ruhle,Ernst_Olav – Fekete,Albert, corr ICCF TT, 2007.

9.a3 h6 10.0-0+=.

9.b5 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.0-0 Nf8 14.Qc2 h5 (14...Bg4 15.Bg4 Ng4 16.h3+=) 15.Rc1 White prepares c5 15...N8h7 (15...h4 16.Nc3+=) 16.c5 d5 17.Nc3 h4 18.Qd1 (18.h3 Be6+-) 18...h3+= 19.g3 Bf5 20.Bb2 Qc8 21.Ra1 Bh6 22.Qb3 Be6 23.Bd1 (23.b6 c6+=) 23...Kg7 (23...b6 24.c6+=) 24.Qa4 (24.b6 cb6 25.Qb6 Qc6+-) 24...Ng5+= 25.c6 (25.Bb3 Kg8+=) 25...bc6= 26.bc6 Qb8 (26...Bg4=) 27.Qb5 (27.Ba3 Kh7+=) 27...Ng4 (better 27...Qb5 28.Nb5 Rb8=+) 28.Qb7+- Qb7 29.cb7 Rb8 30.Ra7 Nf3 31.Nf3 Ne3 32.Ba4 (32.fe3 Be3) 32...ef3 33.Bc6 White intends Ra8 33...Nc4 34.Ra8 Rb7 35.Bb7 Nb2 36.Bd5 (36.Nd5 c5 37.dc5 Nd3+-) 36...Bd2 37.Ne4?? (better 37.Be6 Bc3 38.Ra7+- (38.Bh3?! Bd4 39.Bg4 Nd3+=)) 37...Bd5-+ 38.Rb8 (38.Re8 Be1 39.Kf1 Nd3-+) 38...Be4 39.Rb2 Bc3 40.Ra2 Bd4 41.Ra4 (41.Ra6 c5 42.Rd6 g5-+) 41...c5 42.Kf1 Bd3 43.Ke1 Bc3 (43...Be2!? 44.Ra3 c4 45.Ra2-+) 44.Kd1 Be2 (44...Be2 45.Kc2 Bd4 46.Rd4 cd4-+) 0–1. Oliveira,Leonardo – De Paula,Guilherme Bueno, BRA–ch66 sf2, 1999.

9.Nc3 c6 10.0-0 Nbd7 11.Qc2 Qe7 12.Rae1 Nf8 13.f3 Bh6 14.Nce4 Ne4 15.fe4 Be3 16.Kh1 Bh6 17.d5 Nd7 18.dc6 bc6 19.c5 Bg7 20.Qb3 Rf8 21.cd6 Qd6 22.Bg7 Kg7 23.Qc3 f6 24.Nc4 Qe7 25.e5 fe5 26.Rf8 Qf8 27.Ne5 Qf6 28.Qc6 Rb8 29.Qf6 Nf6 30.Nc6 Rb7 31.Bf3 g5 32.Re7 Re7 33.Ne7 Bd7 34.g3 Ng4 35.Nc6 Bc6 36.Bc6 Ne3 37.Kg1 Kf6 38.h3 Ke5 39.Kf2 Kd4 40.b5+/- Nc4 41.h4 h6 42.hg5+/- hg5 43.Bf3 Kc5 44.Be2 Kb5?? 45.Kf3+- Kb4 46.Kg4 a5?? 47.Kg5 (47.Kg5 Nd6 48.Kf4+-; better is 47.Bc4 Kc5 48.Kg5 Kc4 49.g4+-) 1–0. Lins,Thomas – Blau,Dieter, corr GER jub50 qJVM48, 1996.

9.Nc3 c6 10.a4 a5 11.b5 Nbd7 12.Qc2 Qe7 13.h3 c5 14.Nb3 (14.d5 h5=) 14...cd4 15.Nd4 Nc5 (15...Nb6 16.Rd1=) 16.Rd1 (16.0-0 Rb8=) 16...Be6 (16...Nfd7 17.Nd5 Qd8 18.Bc3=) 17.Nb3 (17.0-0!?=) 17...Nfd7 18.Nc5 Nc5 19.Nd5 (19.0-0 f5=) 19...Bd5+= 20.Bg7 Bc4 (20...Nd3 21.Bd3 ed3 22.Qc3 Bg2 23.Rg1–/+) 21.Ba1 (21.Bc4!? Kg7 22.0-0+=) 21...Be2–/+ 22.Ke2 Nd3 23.Qc3 f6 24.Qd4 (24.Qf6!? Qf6 25.Bf6+=) 24...Rac8–/+ 25.Rd2 (better is 25.Qf6!? Qf6 26.Bf6–/+) 25...Nc1-+ 26.Rc1 Rc1 27.Bb2 Rcc8 28.g4 Qe6 29.Qb6 Qc4 30.Ke1 Qc7 31.Qd4 Re6 32.Qd5 Kf7 33.h4 b6 34.g5 Qc5 35.Qb3 Qc4 36.Qd1 fg5 37.Qg4? Qb4 38.Ke2 Qa4 39.Qg5 Rc5 40.Qh6 Qb5 41.Ke1 Rf5 42.Qg7 Ke8 43.Qg8 Kd7 44.Rc2 Rc5 45.Rd2 Re7 46.Qb8 Qc6 47.Ba3 Re8 48.Qa7 Qc7 49.Qa6 Rc8 50.Kf1? Rc6 51.Qb5 Kd8 52.h5 Rc5! 53.Qb2 Qe7 54.Qb6= Ke8 55.Rd6 Rc1 56.Bc1 Rc1 57.Ke2 Qc7 58.Re6 Kd7 59.Qc7 Rc7 60.Re4 Ra7 61.hg6 hg6 62.Ra4 Ke6 ½–½. Mittelbachert,Ulrich – Altrock,Rainer (2100), Sparkassen op–A, 2000. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 Re8)

9.Nc3 c6 10.Qc2 d5 11.Rc1 Bf5 12.b5 (12.0-0 Bg4=) 12...Nbd7 (12...dc4 13.Nc4 Nd5 14.Ba3 Nc3 15.Qc3+=) 13.0-0+= h5 (13...cb5 14.Nb5 (worse 14.cd5 a6=) 14...Nb6 15.Ba3+-) 14.Ba3 a6 15.bc6 bc6 16.cd5 cd5 17.Nb3 Bg4 18.Nc5 Exerts pressure on the isolated pawn (18.Bg4 hg4 19.Nc5 Nc5 20.Bc5 Rc8+=) 18...Be2= 19.Ne2 Nb6 20.Nb7 (20.Bb4 Qb8+=) 20...Qd7 21.Qc6 (21.Nd6!? Reb8 22.f3=) 21...Nc4=+ 22.Qd7 Nd7 23.Nc5 Ndb6 (23...Ra7 24.Nd7 Rd7 25.Bc5=+) 24.Bb4 (24.Rc3 Rec8= (worse 24...Na3 25.Ra3 Bf8 26.Ra6 Ra6 27.Na6+=)) 24...a5 (24...Bf8 25.Nf4 a5 26.Be1=) 25.Bc3 Rec8 26.Rb1 Rc6 27.Rb5 Bf8 28.Rfb1 Bd6 29.Kf1 (29.f3 ef3 30.gf3 Bc7=+) 29...Bc7 (29...Bh2?! 30.g3+=) 30.Rc1 a4 31.Be1 Bd6 32.Nc3 Na3 33.Rb2 (better 33.Rb6!? Rb6 34.Nd5+=) 33...Nbc4=+ 34.Rb7 Bc5 35.dc5 Rc5 36.Rd1 (36.Rd7!? Nb6 37.Rb7–/+) 36...Nc2-+ 37.Rd5?? (better 37.Rc1 Ne1 38.Ke1-+) 37...N2e3! 38.fe3 Ne3 A double attack 39.Kf2 Nd5 (39...Rd5?! 40.Ke3 Rd6 41.Rb4= (41.Ne4? Re6-+)) 40.Ne4 Rc2 41.Kf3 Ra2 The passed pawn on a4 will quickly become a dangerous weapon 42.Rd7 Ra3 43.Kf2 Nf4 (43...f5 44.Ng5 Rd3 45.Bc3 Rc3 46.Rd5-+) 44.Bc3 Rc3 (better 44...Ra2 45.Kf1 Ng2 46.Nf6 Kg7 47.Ne4 Kf8 48.Bd2 Rd2 49.Rd2-+) 45.Nc3 a3 46.Rd2 Rc8?? (better 46...h4-+) 47.Nb5–/+ Ra8 (47...f5 48.Na3 Kf7 49.h4–/+) 48.Ra2 (48.Nc3 h4 49.g3-+) 48...Nd3 49.Kf3? (49.Kf1!?–/+) 49...Ne5 (better 49...Ra5!? 50.Na3 Ne5 51.Kf2-+) 50.Ke4 Ra5 51.Nd6 (51.Ke5 Rb5 52.Ke4-+) 51...Nc6 52.Nc4 (52.Ra1-+) 52…Ra4 (52...Ra4 53.Ra3 Rc4 54.Kd3 Ne5 55.Ke3 Rb4 56.Ra8 Kg7-+) 0–1. Wan,Yunguo (2520) – Ma,Qun (2590), China Blitz Chess Championships, 2019. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.c4 d6 6.Be2 e5 7.d4 e4 8.Nfd2 Re8)

9.Nc3 c6 10.Qc2 Bf5 11.h3 h5 12.0-0-0 (12.0-0!?+=) 12...d5 (12...a5 13.b5 cb5 14.Nb5+=) 13.Rdg1 Nbd7 (13...h4!?+=) 14.cd5 (14.g4 hg4 15.hg4 Be6+=) 14...cd5 15.Kb1 (15.g4 Be6+=) 15...a6 (15...h4 16.g4 Be6 17.Qb3=) 16.Na4 (16.g4 Be6 17.gh5 Nh5 18.Bh5 gh5+=) 16...b5 (16...h4!?+=) 17.Nc5+= Nb6 18.g4 hg4 19.hg4 Be6 20.Ndb3 (20.g5 Nfd7+=) 20...Nc4= 21.Qd1 (21.Ne6 Re6 22.Nc5 Rc6+=) 21...Nh7 22.Bc3 Ng5 23.Ka1 (23.Qf1 Rc8=) 23...Qf6 24.Rg2 Bf8 25.Qe1 (25.Ne6 Ne6 26.Rgh2 Bg7=) 25...Bd6 26.Na5 (26.Ne6 Re6 27.Nc5 Re7+=) 26...Kg7 27.Nc4 bc4 28.Kb2 (28.Qc1 Reb8–/+) 28...a5 29.ba5 Reb8 30.Ka1 (30.Kc2 Bc8+=) 30...Rb5 31.Ne6 (31.Qd2 Bc7 32.Rb1 Rb1 33.Kb1 Bc8–/+) 31...fe6 (31...Qe6 32.Qd2–/+) 32.Qd2 Qe7 (32...Bc7 33.Rb1 Rb1 34.Kb1–/+) 33.Rgg1 (33.Rb1 Rb1 34.Kb1 Bc7–/+) 33...Bb4–/+ 34.Bb4 Rb4 35.Rb1 Ra4 36.Rb5 Qa3 37.Rhb1 R4a5 (37...Nf7 38.Qb2 R4a5 39.Qa3 Ra3 40.R5b2–/+) 38.Ra5+= Ra5 39.Rb7 Kf6 (39...Nf7 40.Qb2+=) 40.f4 Nf3?? (40...ef3!? 41.e4 de4 42.Qf4 Rf5 43.gf5 Qc3 44.Kb1 Qe1 45.Kb2 Qe2 46.Ka3 gf5 47.Qe5 Kg6=) 41.Bf3 (better is 41.g5 Kf5 42.Bf1 Qa2 43.Qa2 Ra2 44.Ka2+-) 41...ef3= 42.Qc2 Qd3 ½–½. Belezky,Alexander (2450) – Vogel,Roven (2275), Dresden GER, ZMDI Open, 2014. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 e4)

9.Nc3 Nbd7 10.a4 Nf8 11.b5 h5 12.h3 h4 13.a5 Bf5 14.Qb3 c6 15.a6 Qc7 16.ab7 Qb7 17.Qa3 Qd7 18.Qa6 Rec8 19.Nb3 Ne6 20.Kd2 Bf8 21.g4 hg3 22.fg3 cb5 23.Nb5 Nc7 24.Nc7 Qc7 25.g4 Bd7 26.Bc3 Be6 27.Ra4 d5 28.c5 Qg3 29.Raa1 Bh6 30.Kc2 Be3 31.Raf1 Nh7 32.h4 Bg4 33.h5 g5 34.Bg4 Qg4 35.Qb7 Qe2 36.Bd2 Rf8 37.Rf7 Rf7 38.Qa8 Kg7 39.h6 Kf6 40.Qc6 Ke7 41.Qd6 Ke8 42.Qb8 Kd7 43.Qd6 Ke8 44.Qb8 ½–½. Albrecht – Ziewitz, 1981.

9.Nc3 Nbd7 10.Qc2 Qe7 11.0-0 c6 12.Qb3 Nf8 13.Rac1 Bf5 14.Rfd1 h5 15.d5 N8d7 16.h3 c5 17.a3 b6 18.Nb5 Rec8 19.Nc3 g5 20.Ra1 Ne5 21.Rab1 g4 22.hg4 Nfg4 23.Rf1?? Qh4-+ 24.Bg4 Ng4 25.Rfe1 Qf2 26.Kh1 Be5 27.Nf1 Kh7 28.Ne2 Rg8 29.Be5 Ne5 30.Nf4 Nf3! 31.Nh2 Ne1 32.Rb2 Qh4 33.Qd1 Nd3 34.Nd3 ed3 35.Qf1 Be4 36.bc5 Rg2! 37.Rg2 Bg2 38.Kg2 Rg8 (39.Kh1 d2 40.Qf7 Kh8 41.Qf1 Qg5 42.Qf6 Qf6 43.Ng4 d1Q 44.Kh2 Qh4 45.Kg2 Rg4#) 0–1. Gerold,Guenter – Fekete,Albert, corr ICCF TT, 2004.

9.Nc3 Qe7 10.Qa4=.

9.Nc3 Bf5 10.g4 Bd7 (better is 10...Be6!?+=) 11.g5+/- Nh5 12.Nde4 (12.Bh5 gh5 13.Qh5 a5+/-) 12...Bf5 (12...f5 13.Ng3 Ng3 14.hg3+=) 13.Bf3 (13.Bh5 gh5 14.Qf3 Be4 15.Ne4 Nd7+/-) 13...c6 14.0-0 Qc7 (14...Na6 15.a3+=) 15.Qb3 (15.c5 dc5 16.Nc5 a5+/-) 15...Nd7 16.Bg2 (16.Rad1 Rad8+/-) 16...a6 (16...h6 17.h4+/-) 17.a4 (17.c5 Bf8+/-) 17...Kh8 (17...h6 18.b5+=) 18.Rfe1 Nf8 (18...a5 19.Rad1+/-) 19.f4 (19.c5 dc5 20.bc5 Ne6+/-) 19...Qd7 (19...Re7 20.Qd1 Rae8 21.Qd3+=) 20.Nf2 (20.c5 d5 21.Nd6 Re7+/-) 20...Qc7 (20...Re7 21.Qd1+/-) 21.Ne2 Rad8 (21...a5 22.e4 Bc8 23.f5 ab4 24.f6 Nf6 25.gf6 Bf6 26.Qb4+-) 22.Ng3 Ng3 23.hg3 Bc8 (23...a5 24.d5+/-) 24.e4 (better is 24.d5!? Bf5 25.g4+-) 24...Ne6 25.Rad1 Qb6 (25...c5 26.bc5 dc5+/-) 26.c5 dc5 27.dc5 Qc7 28.Bg7 Ng7 29.Rd8 Rd8 30.Rd1 Be6 31.Rd8 Qd8 32.Qd3 Qc8 33.Qd4 Kg8 34.Nd3 Nh5 35.Kf2 Bh3 36.Bf3 Bg4+/- 37.Bh1 Bd1 38.Ne5 Ba4 39.Bg2 Qe6 40.Qc4 Qc4 41.Nc4 Ng7 42.Bh3 Ne6 43.Be6 fe6 44.Na5 Kf8 45.Ke3 Ke7 46.Kd4 Bc2 47.Nb7 Kd7 48.Ke5 Ke7 49.Na5 Ba4 50.Nc4 Bb5 51.Ne3 Be2 52.Nc2 Bc4 53.Nd4 Kd7 54.Kf6 Ba2 55.e5 Bd5 56.Kg7 Ke7 57.Nc2 Be4? 58.Ne3 Bf3 59.Nc4 Bd5 60.Nd6 Bb3 61.Kh7 Bc2 62.Kg7 Bd3 63.Nf7 1–0. Melich,Jindrich (2150) – Pedemonte,Claudio (2010), Imperia op, 2000.

9.g4 h6 10.h4= Nh7 11.Nc3 Nc6 12.Nce4 Nb4= 13.a3 Nc6 14.Ng3 f5 15.gf5+/- Bf5 16.Nf3 Bg4= 17.Ng1 Be2 18.N1e2 Qf6 19.Qc2 Qf7 20.h5 g5 21.e4 Nf6 22.f3 Na5 23.d5+= Qd7 24.Nf5+- b6 25.Nh6 Bh6 26.Bf6 Bg7? 27.Qc3 Rf8 28.Bg7 Qg7 29.Qg7 Kg7 30.Nd4 Rf7 31.h6 Kh7 32.Ne6 Kg6 33.Ke2 Rh7? 34.Rag1 Nc4 35.Rg5 Kf6 36.Rf5 Ke7 37.Ng5 Rhh8 38.Rf7 Ke8 39.Rg7 Na3 40.Ne6 Nb5 41.h7 a5 42.Rg8 (42...Kf7 43.Ra8 Ra8 44.h8Q Rh8 45.Rh8+-) 1–0. Sternik,Ryszard – Mus,Roman, corr ch Poland semi, 1994.

10.a4 Nbd7 11.Qc2 Qe7 12.b5 Nf8 13.Ba3 Bf5 14.Nb3 c6 15.a5 a6 16.bc6 bc6 17.Na4 Ne6 18.Nb6 Ra7 19.Qd2 c5 20.Rd1 cd4 21.Nd4 Nd4 22.Qd4 Ng4 23.Nd5 Qd7 24.Qb6 Rb7 25.Qa6 Rb3 26.Bd6 Rb2 27.c5 Qa4 28.0-0 Ne5 29.Ne7 Re7 30.Be7 Qc2 31.Rd8 Kh7 32.Bd1 Qc3 33.Bd6 Nc4 34.Rb8 Ra2 35.Rb3 Qc1 36.Be2 1–0. Espig – Jansa, Lublin 1970.

10.a4 Bf5 11.b5 Nbd7 12.a5 a6 13.Nb3 h4 14.Qc2 (14.g4 hg3 15.hg3 ab5 16.cb5 Be6+=) 14...h3 15.g3 Nf8 16.d5 Ng4 17.Qd1 Ne5 18.Nd4 Nh7 (18...Bg4! 19.Bg4 Nd3 20.Kf1 Nb2=) 19.Nf5+= gf5 20.0-0 Ng5 21.Kh1 Ngf3 22.Qc2 ab5 23.cb5+/- c5 24.b6 c4 25.Nb5+- Rc8 26.Nc7 Rc7 27.bc7 Qc7 28.Bf3 Nf3 29.Bg7 Kg7 30.Qc3 Kg6 31.Rfc1 Ne5 32.a6 b5 33.Rf1 Ra8 34.Rfb1 Qc5 35.Qd4 b4=+ 36.a7 Qd4–/+ 37.ed4 Nd3 38.Ra2 b3 39.Ra4 c3 40.Rb3 c2 41.Rc3 c1Q 42.Rc1 Nc1 43.Kg1 Nb3 44.f3 Nd2 45.fe4 fe4 46.Kf2 f5 47.Ra2 Nf3 48.Ke3 Kg5 49.g4 Kg4 50.Ra1 Nh2 51.Rg1 Kh4 52.Kf4 Ra7 53.Rg8 Rh7 54.Kf5 e3 55.Kf4 e2 56.Rg1 Rf7 57.Ke3 Rf1 58.Ke2 Rg1 (58...Rg1 59.Kd2 Nf3 60.Ke2 Nd4 61.Kd3 Rd1 62.Kc4 h2 63.Kc3 h1Q 64.Kb4 Qf3 65.Ka5 Qb3 66.Ka6 Ra1) 0–1. Svitek,Volker (2095) – Sanchez Jerez,Emilio Miguel (2275), Calvia ESP, 8th Open, 2011.

10.Qb3 Bf5 11.0-0-0 (11.0-0!?+=) 11...c6 12.h3 d5 13.Rdg1 Be6 14.g4 (14.f3 Bh6 15.f4 Bg7+=) 14...hg4 (14...h4!?+=) 15.hg4= Nbd7 16.Rg3 Nb6 17.c5 Nbd7 18.Qd1 Nh7 19.Rgh3 Ng5 20.Rh4 Nf6 21.Qg1 Qc7 22.Nf1 Kf8 23.Ng3 Qd7 24.Nf5 Bf5 25.gf5 Qf5 26.b5 Nf3 27.Bf3 ef3 (27...Qf3?? 28.Rf4 Qf4 29.ef4+-) 28.Rf4 Qe6 29.Rf3 Ke7 30.Qg3 Rh8 31.Re1 Kf8 32.Rg1 Kg8 33.Qg2 (33.Qc7 Qd7 34.Qd7 Nd7=) 33...Re8 34.Ne2 (34.bc6 Qc6 35.Rf5 Rd8=) 34...Nh5 (34...cb5!? 35.Nf4 Qe4+=) 35.Nc3 Nf6 36.Ne2 (36.bc6!? bc6 37.Rh1=) 36...Nh5 (better is 36...cb5!? 37.Nf4 Qd7–/+) 37.Nc3 ½–½. Kushch,Nikolai – Moskalenko,Viktor, Yalta,UKR, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 e4)

10.b5 Bf5 11.a4 a6 12.Ba3 Nbd7 13.ba6 ba6 14.Nb3 c5 15.0-0 Rc8 16.Rc1 Bg4 17.Nd5 Nd5 18.cd5 Be2 19.Qe2 cd4 20.Nd4 Rc1 21.Rc1 Bd4 22.ed4 Qg5 23.Qa6 e3 24.Rc8 ef2 25.Kf1 Qe3 26.Re8 Qe8 27.Qe2 Qa8 28.Qb5 Qe8 29.Kf2 Qe7 30.g3 Nf6 31.Qe2 Qa7 32.Qc4 Qa5 33.Ke2 Nd5 34.Bd6 Nc3 35.Kd3 Na4 36.Qc8 Kh7 37.Be5 Qb5 38.Ke3 1–0. Espig – Pein, Budapest 1989.

10.Qc2 Qe7 11.h3 c6 12.0-0 Bf5 13.Rfc1 Na6 14.b5 Nb4= 15.Qb3 c5 16.d5 Bh6 17.Nce4?? Ne4-+ 18.Ne4 Qe4 19.Qc3 Kh7-+ 20.Rd1 Qe7 21.Rd2–/+ Qg5 22.a3 Nc2 23.Rc2 Bc2 24.Qc2 Bg7 25.Bg7 Kg7 26.Qc3 Qf6 27.Qf6 Kf6=+ 28.a4 b6 29.Bd3 Ke7 30.Kf1 h4 31.Ke2 Kf6 32.Kf3 Kg5 33.Bc2 f5 34.a5 a6 35.ab6 ab5 36.Ra8 Ra8 37.cb5 Rb8 38.Bd3 Rb6 39.e4 fe4 40.Ke4 Rb8 41.f4 Kf6–/+ 42.Kf3 Ra8 43.Kg4 Ra3 44.Be2? Rg3 45.Kh4 Rg2 46.Bd3 Rd2 47.Bf1 Rf2 48.Bd3 Rf4 49.Kg3 Rb4 50.Kf3 g5 51.Ke3 Ke5 0–1. Sivic,Jernej (1955) – Jovanic,Ognjen (2440), 15th Open, Ljubjana SLO, 2004.

10.Qc2 Qe7 11.h3 c6 12.a4 Bf5 13.b5 Nbd7 14.a5 c5 15.Nb3 Rac8 16.a6 b6 17.0-0-0 cd4 18.Nd4 Ne5 19.Nf5 gf5 20.Nd5 Nd5 21.Rd5 Rc5 22.Be5 Be5 23.Rc5 dc5 24.Rd1 h4 25.Rd5 Qg5 26.Bf1 Bg7 27.Kd1 Qf6 28.Ke1 f4 29.Be2 fe3 30.fe3 Re5 31.Rd7 Qg5 32.Qd2 Qg2 33.Bf1 Qg3 34.Qf2 Qg6 35.Ra7+/- Re8 36.Rd7 Qe6 37.Rd5 Qe7 38.Be2 Rd8? 39.Rd8+- Qd8 40.Qf5 Bc3 41.Kf2 Qc7 42.Qf4 Qe7 43.Bh5 f6 44.Qh4 Be5 45.Qe4 Kh8 46.Bf3 Qd7 47.Qh4 (47.Qh4 Kg7 48.Ke2+-) 1–0. Krnic,Zdenko (2430) – Paunovic,Dragan (2320), Vrnjacka Banja, 1983.

10.Qc2 Bf5 11.h3 (11.0-0 h4+=) 11...Nc6 (11...c5 12.bc5 dc5 13.dc5=) 12.a3 (12.Qb3!?+=) 12...Nd4=+ 13.ed4 e3 14.Qd1 ed2 15.Qd2 c5 (15...d5 16.0-0=) 16.d5 Ne4 (16...Qc8 17.0-0+=) 17.Ne4 Bb2 18.Qb2 Be4 19.0-0 Qg5 20.f3 Bf5 21.f4 Qh4 22.bc5 dc5 23.Rf3 b6 24.Bf1 Rad8 25.a4 Re1 26.a5+= ba5 27.Ra5+/- Rde8 28.Ra7 Bd3+= 29.Ra1 Bc4= 30.d6 Ra1 31.Qa1 Bf1 32.Rf1+= Qd8 33.Rd1 Qd7 34.f5 Qf5= 35.Qa5 Qd7 36.Qc5+= Rc8 37.Qd4 Rd8 38.Kh2 Kh7 39.Qf6 Re8 40.Kh1 Re6 41.Qd4 Re2 42.Qd5 Re6 43.Qc5+/- Rf6 44.Qd4 Re6+= 45.Rd2 Re1 46.Kh2 Re6 47.Qd5 Rf6 48.Qe5 Re6 49.Qd4 Kg8 (49...Re8 50.Qc3+=) ½–½. Briansky – Kosikov, 1986.

10.h3 Nbd7 11.Qc2 e4 seems the pivot of the position 11...Qe7 12.a4 Nf8 13.a5 Bf5 14.a6 b6 15.d5 N8d7 16.Nb3 Ne5 17.Nd4 Qd7 18.0-0-0 (18.Nf5 Qf5 19.Rd1 Qg5+=) 18...c5 (18...Nd3!? 19.Bd3 ed3=) 19.dc6+= Nc6 20.Nc6 (worse is 20.Nf5 Qf5 (worse is 20...gf5 21.Qb3+/-) 21.Qa4 Ne5+=) 20...Qc6 21.Nb5 Red8 22.Rd2 Bh8 (better is 22...d5!? 23.Kb1 Bc8+=) 23.Rhd1+- Ne8 (23...d5 24.Kb1 Rdc8 25.cd5 Qd7+-) 24.Nd4 (24.g4!? Bb2 25.Kb2 hg4 26.hg4 Be6+-) 24...Bd4+/- 25.Rd4 (25.ed4? e3 26.Rd3 Qg2 (26...ef2?! 27.d5 Qd7 28.Qc3=) 27.fe3 Rac8-+; 25.Bd4?! Rac8+=) 25...Be6? (better is 25...h4!?+/-) 26.b5 (26.Re4?! Qc8+-) 26...Qc5 (26...Qd7 27.Rd6 Qd6 28.Rd6 Nd6 29.Qc3+-) 27.Qc3 (27.Re4 Qg5 28.g4 Ng7+-) 27...Kf8 (better is 27...Qe5+-) 28.Re4 Qf5 (28...Qg5 29.g4 Rac8 30.gh5 gh5 31.h4+-) 29.Bd3 (29.Qh8 Ke7 30.Rf4 Qc5+-) 29...Rac8 30.Rf4 (30.Kb1 Qg5 31.Re6 fe6 32.Qh8 Kf7 33.Qh7 Kf8 34.Bg6 Rd7 35.Qh8 Ke7+-) 30...Qg5 31.h4 (better is 31.Qh8 Ke7 32.Kb1+-) 31...Qg2?? (better is 31...Qh6+-) 32.Be4 Qh2 (32...Qh3 33.Rh1 Rc4 34.Qc4 (34.Rh3?! Rc3 35.Bc3 Bh3+/-) 34...Qh1 35.Bh1 Bc4 36.Rc4+-) 33.Bb7 (33.Qh8!? Ke7 34.Bf6 Nf6 35.Qf6 Kf8+-) 33...Qf4 (33...Rc4 34.Rc4 Bc4 35.Qc4 Qf2+-) 34.Qh8 (34.ef4 Rc4 35.Kc2 Rc3 36.Kc3 d5+=) 34...Ke7 35.ef4 Rc4 36.Kd2 (36.Kb1 Rf4 37.Re1 Rf2+-) 36...Rf4 37.Ke3 (37.f3 Rh4 38.Ke3 Rc4+-) 37...Rh4 (37...Rf5 38.Rc1+-) 38.Bc6 Rh3 (38...d5 39.Ba3 Nd6 40.Bd6 Rd6 41.Qb8 Re4 42.Kd3+-) 39.f3 Rc8 (39...Bg4 40.Kf4 Rh2 41.fg4+-) 40.Be8 (40.Rd6 Bg4 41.Bf6 Nf6 42.Qf6 Kf8 43.Bd5 Re8 44.Kd4 Rf3 45.Bf3 Kg8 46.Bd5 Be6 47.Be6 Kh7 48.Qf7 Kh6 49.Qf4 Kg7 50.Rd7 Re7 51.Re7 Kh8 52.Qe5) 40...Re8 41.Qf6 Kd7 (41...Kf8 42.Kf4 Rh2 43.Rd6 Rb2 44.Qb2 Kg8+-) 42.Be5 Kc8 (42...Rh1 43.Rd6 Kc8 44.Rc6 Kd7 45.Rc7) 43.Rd6 Rf3 44.Qf3 Bd5 45.Rc6! Kd7 (45...Bc6 46.Qc6 Mate attack) 46.Qd5 Ke7 47.Qd6 1–0. Schoenwaelder,Bernd (2100) – Nguyen,Huy Dat (1905), Dresden GER, ZMDI Open, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 Re8 9.Nc3 h5)

10.h3 Nbd7 11.g4 hg4 12.hg4 Nf8 (12...a5 13.b5+=) 13.g5+/- N6h7 14.Nce4 Ng5 15.Qc2 Ne4 16.Ne4 Bf5 17.Bd3 a5 18.b5 c6 19.d5 (19.bc6 bc6 20.Rb1 Rb8+=) 19...Be4 20.Be4 cb5 (20...Re4 21.Bg7 Rh4 22.Rh4 Qh4=) 21.Ke2 Qe7 22.Bd3 bc4 23.Bc4 Rac8 24.Bg7 Kg7 25.Qb3 Rc5 26.Bd3 Nd7 27.Qb7 Rb8–/+ 28.Qa7 Rb2 29.Kf1 Qf6 30.Rh2 Ne5?? 31.Be2?? Re2?? 32.Ke2?? Qf3 33.Ke1 Ng4 0–1. Larsen,Andr (1965) – Omarsson,D (2090), Politiken Cup, Helsingor DEN, 2009.

10.h3 h4 11.Qb3 Bf5 12.0-0-0 Bh6 13.Rhg1 Bg5 14.g3 hg3 15.Rg3 Bh4 16.Rg2 Nbd7 17.Bg4 Bg4 18.hg4 Bg5 19.Rh1 a5 20.a3 ab4 21.ab4 d5 22.cd5 Kg7 23.Rgh2 Nf8 24.d6 cd6 25.d5 Rc8 26.Kb1 Rc3 27.Qc3 N8d7 28.Ne4 Re4 29.Rh7 Kf8 30.Rh8 Ke7 31.Rd8 Kd8 32.f4 Nd5 33.Rh8 1–0. Rodriguez – Schweber, corr Argentina 1987.

10.h3 h4 11.Qc2 Bf5 12.Nb3 (12.0-0 Nbd7+=) 12...Nbd7 (12...Nc6 13.a3 a5 14.Na5 Na5 15.ba5=) 13.c5 (13.0-0 Qc8+=) 13...Nf8 (13...dc5 14.Nc5 Nc5 15.bc5=) 14.a4 (14.0-0 d5+=) 14...Rb8 15.Bc4 (15.a5!?+=) 15...d5= 16.Be2 g5 (16...Ne6=) 17.0-0-0 (17.b5!?+=) 17...c6 18.b5 Nimzovich: attack the chain at its base (18.g3 hg3 19.fg3 Be6+=) 18...Qd7 (18...Ne6 19.g3=) 19.b6 (19.Kd2 Rbd8+=) 19...Ra8 (19...ab6 20.cb6 Qe7 21.Rdf1–/+) 20.a5 a6 (20...ab6 21.cb6 Ne6 22.Na4=) 21.Qd2 (21.Kd2 Rac8+=) 21...Re7 22.Rdg1 Ng6 23.Bf1 Bh6 24.Nd1 (24.Qc2 Rf8+=) 24...Kh7 (24...Ree8 25.Nc3+=) 25.Qe1 (25.g4 Be6+=) 25...Rg8 (25...Rb8 26.Qb4+=) 26.Nd2 Rg7 27.Be2 Rg8 28.Qf1 (28.Bf1 Ree8+=) 28...Rg7 (28...Rge8 29.g4 Be6 30.f4 ef3 31.Qf3=) 29.Bc3 (better is 29.g4!? Be6 30.Nc3+=) 29...Re8 (29...Nf8!?+=) 30.Qe1 ½–½. Salazar Bernard,JI – Outerelo Ucha,M (2195), Orense op 9th, 2000. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.c4 e5 7.d4 e4 8.Nfd2 Re8 9.Nc3 h5)

9.Nc3 Qe7 10.Qb3 Bf5 11.0-0 c6 12.Rae1 (12.c5 d5+=) 12...Nbd7 13.f3 (13.c5 dc5 14.bc5 b6=) 13...ef3= 14.Bf3 Rae8 15.b5 (15.e4 Ng4 16.Ne2 Bh6 17.Bg4 Bg4+=) 15...c5 16.Bb7?? (better is 16.Re2 Qd8 17.e4=) 16...cd4-+ 17.ed4 (17.Nce4 Ne4 (17...Be4?! 18.ed4 Bb7 19.Re7 Re7 20.Qa3–/+) 18.Ne4 Be4 19.ed4 f5-+) 17...Qe1 18.Re1 Re1 19.Kf2 Rfe8 20.Nf3 Ng4 21.Kg3 R1e3 22.h3 Bd4–/+ 23.hg4 hg4 24.Qd1? Bc3-+ 25.Bc3 Rc3 26.Qd6 gf3 27.gf3 Rc4 28.Bc6 Rc2?? 29.a4? Ree2?? 30.Bd7= Rg2 31.Kf4 Bd7 32.Qd7= Rc4 33.Ke3 Ra4 34.Qe8 Kg7 35.Qe5 Kg8 36.Qe8 Kg7 37.Qe5 Kh7 38.Qe7 Kg7 39.Qe5 Kg8 40.Qe8 Kg7 ½–½. Brunello,Sabino (2585) – Bae,Torstein (2420), 40th Men Olympiad, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4)

9.Nc3 Bf5 10.h3 h4 11.Qb3 Nbd7 12.a4 (12.c5 Be6 13.Qa3 d5=) 12...g5 (12...a5 13.ba5 Qe7 14.0-0+= (14.Qb7? Rab8 15.Qa7 Rb2-+)) 13.0-0-0 (13.c5 Be6 14.Qa3 d5+=) 13...Bg6 (13...Re8 14.c5=) 14.g3 (14.Rhg1 a5=) 14...Kh7 (14...hg3!? 15.h4 gh4 16.fg3 a5 17.ba5 hg3=) 15.gh4+= gh4 16.Rhg1 (16.f3 ef3 17.Bf3 Bh6 18.Bb7 Rb8+=) 16...Bh6 (16...Qe7 17.Rde1+=) 17.Kb1 (17.c5 a5+-) 17...Rg8 (17...b6 18.Rc1+=) 18.Rde1 (18.c5 a5+=) 18...Bf5 (18...a5 19.ba5 c5 A) 20.Qb7 cd4 21.Rg6 dc3 22.Rf6 A1) worse 22...Qf6 23.Ne4 Qg6 24.Bd3+= (24.Bc3?? Rab8 25.Kc2 Rb7-+); A2) 22...Nf6 23.Ne4 cb2 24.Qf7 Bg7 25.Ng5 Kh6=; B) 20.Nb5 Qa5 21.Bc3 Qa4 22.Qa4 Ra4 23.Nd6 cd4 24.Bd4=) 19.Qc2 The pressure on e4 grows (19.c5 Qe7+-) 19...Qe7 20.Nf3 (20.Bf3 Rg1 21.Rg1 Re8+=) 20...Rg1= 21.Rg1 Rg8 22.Rh1 (22.Rg8 Kg8 23.Bf1 Nb8=) 22...Ne8 23.Nh2 (23.Nd5 Qd8+=) 23...Nef6 (23...c6 24.Ng4+=) 24.Nf3 Ne8 25.Nh2 (25.Nd5 Qd8+=) 25...Nef6 26.Ng4 Ng4 (26...c6 27.f4=) 27.hg4+- Bg4 (27...Bg6 28.Nd5 Qd8 29.Nf4+=) 28.Ne4 Bf5 29.Bd3 Bg6 30.Nd2 Qg5 31.f4 Qg2 (31...Bd3!? 32.Qd3 Qg6 33.Qg6 Rg6+=) 32.Rh4+- Qg3 33.Rh1 f5?? (better 33...Qg2 34.Rf1 Re8+-) 34.Nf1+- Qg4 (34...Qf3 35.Qh2 Qd1 36.Ka2 Qa4 37.Ba3+-) 35.Qh2 Qd1 36.Ka2 Qa4 37.Ba3 Bh5 (37...Kg7 38.Qh6 Kf7+-) 38.Bf5 Kh8 39.Bc2 (39.Qh5?! Rg2 40.Nd2 Rd2 41.Kb1 Qb3 42.Kc1 Qc3 43.Kb1 Qb3 44.Kc1 Qc3 45.Kb1 Qb3=) 39...Qc6 40.Qh5 (40.Qh5 Qh1 41.Qh1+-) 1–0. Manukyan,SaV (2285) – Yeremyan,Alen (2060), 2. Yerevan Open, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 e5 6.d4 0-0 7.Be2 e4 8.Nfd2 h5)

9.Nc3 Bf5 10.h3 h4 11.Qb3 Re8 12.b5 Nbd7 13.a4 c5 (13...Nh7 14.Bg4 Qg5 15.Bf5 Qf5+= 0.33) 14.bc6 bc6 15.Qc2 (15.0-0 c5= 0.11) 15...c5 16.Nb3 Rb8 17.Nb5 Bf8 18.dc5 dc5 19.Bc3 a6 20.Ba5 Qe7 21.Nc7 Rec8 22.Nd5 Nd5 23.cd5 Qd6 24.Bc4 Ne5 25.Nd2 Bg7 26.Ke2 (26.Rd1!? Rb2 27.Qb2 Nd3 28.Bd3 Bb2 29.Be2–/+) 26...Nc4-+ 27.Qc4 Ba1 28.Ra1 Qh2 29.Ne4 Qe5 (29...Qg2?! 30.Nf6 Kf8 31.Bc3+=) 30.Ng5?? (30.Nc3 Rb2 31.Kf1-+) 30...Qa1 31.Bc3 Rb4! 32.Qb4 cb4 33.Ba1 Rc2 34.Kd1? Rf2 35.e4 Bd7 36.e5 Rf1 (36...Rf1 37.Kc2 Ra1-+) 0–1. Stysiak,Szymon (2220) – Barski,Radoslaw (2255), Druzynowe Mistrzostwa Polski I LIGA, 2011. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4)

9.h3 h4 10.Nc3 Re8 11.Qb3 c6 12.a4 Qe7 13.a5 Bf5 14.Na4 Nbd7 15.c5 Be6 16.Bc4 d5 17.Be2 a6 18.0-0-0 Nh7=+ 19.Rdg1 Ng5 20.Nb6 Rad8 21.Nd7= Rd7 22.Nb1 Rf8 23.Bc3 Bh6 24.Bd2 Nh7 25.Nc3 Kg7 26.Bf1 f5 27.Ne2 Ng5 28.Qd1 Bf7 29.Nf4 Kh7 30.Be2 Ne6 31.Ne6 Be6 32.g3 Bg5 33.Rg2 Qf6 34.Rhg1 Rg7 35.Kb2 Rfg8 36.Kc3 Bh6 37.Bc1 g5 38.gh4 gh4 39.Rg7 Rg7 40.Rg7 Bg7 41.Qh1 f4=+ 42.Qh2 f3 43.Bf1 Qg5 44.Bd2 Qf6 ½–½. Born,Carlos Rodrigo (2200) – Iermito,Sebastian (2315), Vicente Lopez ITT, 2007.

10.Qc2 Bf5 11.a4 Nc6 (11...a5 12.b5+=) 12.Qb3+= a5 (12...h4 13.h3+=) 13.b5 Nb4 14.Na2 (14.0-0 c5+=) 14...Nd3 (14...Na2 15.Ra2 Bg4 16.Bg4 Ng4 17.0-0+=) 15.Bd3+= ed3 16.0-0-0 (better is 16.Nc1!?+=) 16...c6 (16...d5 17.Nc3=+) 17.Nc3 d5 (17...Rc8 18.Rdf1=+) 18.cd5 (18.c5 b6=+) 18...cd5 19.Kb1 (19.Rdf1 Ne4–/+) 19...Rc8 20.Ka1 Re7 21.Ndb1 Rec7 22.f3 Bh6 23.Rhe1–/+ Re7 24.Bc1 Qe8 25.e4 Bc1 26.Rc1 de4 27.fe4 Ne4 28.Nd5 Re6 29.Qd3 Rc1 30.Rc1 Qd8 31.Nf4 Rd6 32.Rc4 Qh4–/+ 33.Qe3 Qh2 34.Rc7 Qh1 35.Qb3 Ng5-+ 36.d5 Qg1 37.Qb2–/+ Ne4 38.Re7?? Nc3-+ 39.Re8 Kh7 40.Ne2 Qb1 (40...Qb1 41.Qb1 Nb1-+ (41...Bb1?! 42.Nc3 Bd3 43.Re7=+)) 0–1. Stysiak,S (2220) – Spisak,C (2320), TCh–Poland Extraliga, Ustron Poland, 2006.

10.Qc2 Bf5 11.h3 Nc6 12.Qb3 Qd7 13.0-0-0 a6 14.Rdg1 h4 15.g4 hg3 16.Rg3 d5 17.cd5 Ne7 18.Nc4 Ned5 19.Ne5 Qd6 20.Rhg1 Be6 21.Nd5 Nd5 22.Ng6 Nb4 23.Ne7 Kf8=+ 24.Nf5 Bb3 25.Nd6 Na2 26.Kb1 cd6 27.Rg7 Rac8 28.Ba3 Rc6 29.Kb2 Bd5 30.Bh5 Rb6 31.Ka1 Nb4 32.Bb4 Rb4 33.Rh7 Ke7 34.Rg5 Rb5 35.Rf5 Rc8 36.Rd5 Rd5 37.Bf7 Ra5 38.Kb2 Rb5 39.Bb3 Kd8 40.Ka2 Rc3 41.Be6 Rc2 (41...Rc2 42.Ka3 Rf2 43.Rd7 Ke8-+) 0–1. Cafferty,B (2130) – Kotronias,V (2590), Hastings Masters, 2010.

11.0-0 Bf5=.

11.a4 Nc6= 12.Ba3 a5 13.b5 Nb4 14.Na2 (14.Qb3!?=) 14...Nd3–/+ 15.Bd3 ed3 16.Nf3 c5 (16...Bf5 17.Nc1 d5 18.cd5 Nd5 19.0-0+=) 17.Qd3 cd4 (17...Bf5!? 18.Qd1 d5 19.dc5 Ne4–/+) 18.Nd4= Ne4 19.0-0 Qg5 20.f4 Nc5 21.Qc2 Qh5 22.Rae1 Re3 23.Re3 Bd4 24.Qd2 Nb3 25.Qd3 Bf5 (25...Be3? 26.Qe3 Be6 27.Qb3+-) 26.Qb3 Qe2 27.Bc1 Re8 28.Rff3 Bd3 29.Kh2 Be3 (worse is 29...Re3 30.Be3 Be3 31.Nc3+-) 30.Nc3? (better is 30.Be3 Bc4 31.Qc3 Ba2 32.Bd4=) 30...Qe1-+ 31.Be3 Re3 32.Re3 Qe3 33.Nd5 Qg3 (33...Qd4!? 34.Qc3 Qc3 35.Nc3 Kf8-+) 34.Kg1+= Qe1 35.Kh2 Qg3 ½–½. Kasparov,Sergey (2480) – Kobese,Watu (2330), Cape Town RSA, Steinitz GM, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 h5)

11.Qb3 Nbd7 12.0-0-0 (12.0-0!?+=) 12...c6 (12...a5 13.b5=) 13.Kb1 Nf8 (13...a5 14.b5=) 14.Ka1 (14.g3 a5=) 14...N8h7 (14...d5 15.g3=) 15.Ndb1 (15.g3 a5=) 15...d5 (15...Be6 16.Qa4=+) 16.b5 (16.Nd2 Be6=+) 16...Ng5 17.Nd2 Be6 18.bc6 (18.c5 Qc7=+) 18...bc6 19.Qa4 Bd7 (19...Qc7 20.c5=+) 20.Nb3 Ne6 21.Qa5 White intends c5 21...Bf8 (21...Qb6 22.Ba3=+) 22.c5 Qe7 23.Rb1 Bg7 24.Bc1 (24.Qa4 Reb8=+) 24...Reb8 25.Bd2 Ne8 (25...Nh7 26.g3=+) 26.Rhd1 (26.g3 N8c7=+) 26...N8c7 27.Rb2 (27.f3 ef3 28.gf3 Rb7=+) 27...f5 (27...Qg5 28.f3=+) 28.Qa4 (28.Rdb1 Qg5 29.Bf1 Rb7=+) 28...a6 (28...Qg5 29.g3=+) 29.Qa5 (29.g3 hg3 30.fg3 Nb5=) 29...Qg5 (29...Rb7 30.Rdb1=+) 30.Bf1 (30.g3 Rb7=+) 30...Bf6 (30...Rb7 31.Rdb1=+) 31.Na4 (31.Rdb1 Rb7=) 31...Nb5 (31...Ra7 32.Nb6 Be8 33.Rdb1=) 32.Nb6 Bd8 33.a4 Na3 (33...Nd6 34.Qb4=) 34.Qb4= Nc4 35.Bc4 dc4 36.Na5 Nc7? (36...Qg2 37.Qc4 Bb6 38.cb6 A) 38...Qh3? 39.b7 Ra7 40.d5+- (40.Nc6?! Rbb7 41.Na7 Ra7+-); B) worse 38...Qf2 39.Nc6 Re8 40.d5 Bc6 41.dc6+- (41.Qc6?! Rac8 42.Qd6 Rcd8+-; worse 41.de6 Qf3 42.e7 Kg7+-); C) 38...Qf3+-) 37.Qc4+- (37.Nac4?! Nd5 38.Qa3 Ra7+=) 37...Be6 38.Qf1 Bd5 39.Na8 Ra8 40.Nc4 (40.Rdb1 Bf6+-) 40...Bc4 (40...Bf6 41.Ba5 Ne6 42.Nb6+-) 41.Qc4 Nd5 42.Rg1 (42.Qb3 Rc8 43.Qb7 Ne7+-) 42...Kf8 (42...Bc7 43.f4 Qg3 44.a5+-) 43.Qe2 (43.Qb3!? Bc7 44.Qb7 Qd8 45.Qc6 Kg7+-) 43...Bc7 44.f3 Qe7 (44...ef3 45.Qf3 Qe7 46.Rb7+-) 45.f4 a5 (45...Qf6 46.g3+-) 46.g4 hg3 47.Rg3 Kf7 (47...Kg7 48.Rb7+-) 48.Rg1. Weiss,Christian (2415) – Kozul,Zdenko (2600), 2. Bundesliga Mitte, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 h5 9.Nc3 Re8)

11.Qc2 Nc6 12.Qa4+= (worse 12.Nce4 Ne4 13.Ne4 Bf5=).

11.Qc2 Qe7 12.a4 (12.0-0 Bf5+=) 12...c6 (12...c5 13.bc5 dc5 14.Ba3+=) 13.b5 (13.0-0 Bf5+=) 13...Nbd7 (13...c5 14.dc5 dc5 15.0-0+=) 14.a5 c5 (14...a6 15.b6+-) 15.d5 (15.0-0 cd4 16.ed4 Nf8+=) 15...Ne5 16.Nde4 (16.0-0 Bf5+=) 16...Ne4 17.Qe4 (17.Ne4 Bf5 18.0-0 Nc4 19.Bg7 Kg7 20.Qc4 Qe4 21.Qc3 Qe5=) 17...Bf5= 18.Qf4 Bd3 19.Ra4 g5 20.Qh2 Nc4 (20...Bc2!? 21.0-0 Ba4 22.Na4 Ng6=) 21.Rc4+- (21.Bd3?? Nb2 22.0-0 Bc3-+) 21...Bc4 22.Bc4 Bc3 (22...Qd8 23.Kd2 Qa5 24.Kd3= (24.Qd6? Qb4 25.Kd3 Qb2-+)) 23.Bc3 Qe4 24.Qd6 (24.Be2 Qc2 25.0-0 Qc3 (25...Qe2? 26.Qd6 Qh5 27.Qc5+-) 26.Qd6 c4+=) 24...Qc2= (24...Qc4?? 25.Qf6 Qc3 26.Qc3+-) 25.Qf6 (25.0-0 Qc3 26.Be2 Rac8+=) 25...Qc1 26.Ke2 The mate threat is Qg7 26...Qc2 27.Kf1 Qc1 28.Be1 Qc4 29.Kg1 Qd5 30.Bc3 Threatening mate... how? 30...Kf8 31.Kh2 Rad8 (31...b6!?=) 32.Qh6+= Ke7 33.Bf6 Kd7 34.Bd8 Rd8 35.f4 (35.Qh5 Ke7+=) 35...gf4 (35...Re8 36.a6 (36.fg5?? Qe5 37.Kg1 Qe3 38.Kh2 Qg3 39.Kg1 Re1) 36...gf4 37.ef4+=) 36.ef4+- (36.Qf4?! Qd6=) 36...Rg8 The mate threat is Qxg2 37.Rg1 c4 (37...Rg6 38.Qh4 b6 39.Qh8 ba5 40.Qb8+-) 38.Qh4 c3 (38...Rg6 39.f5 Rg8 40.Qf2+-) 39.Qf2 Rc8 (39...Kc7 40.Qa7 Qb5 41.Qe3 Qa5 42.Rc1+-) 40.Qa7+- c2 41.a6 Rc7 42.ab7 (42.Qe3!? ba6 43.ba6 Qe6 44.Qe6 Ke6+-) 42...Rb7+- 43.Qa4 (43.Qe3 Rb5 44.Ra1 Rc5+-) 43...Qd2 44.b6 Kd6 45.Qa3 Kd7 46.Rc1 (46.Qc5 Qf4 47.Kh1 Rb6 48.Qb6 c1Q 49.Rc1 Qc1 50.Qg1 Qc4+-) 46...Qf4 47.Kh1 Rb6 48.Qd3 Rd6 Do you see the mate threat? 49.Qc2 Rd2 (49...Ke7 50.Qc3+-) 50.Qc5 (50.Qc6 Ke7+-) 50...Ke6 51.Qb5 (51.Kg1 Re2+-) 51...Rf2 52.Qc6 Ke7 53.Qc5 (better 53.Re1 Kf8 54.Qc3 Rf1 55.Rf1 Qf1 56.Kh2 Qf4 57.Qg3+-) 53...Ke6?? (better 53...Kf6+-) 54.Re1+- Kd7 (54...Kf6 55.Kg1 Rg2 56.Kg2+-) 55.Kg1 (better 55.Qd5!? Qd6 56.Qb7 Kd8+-) 55...Rb2 56.Rf1 (56.Rf1 Rg2 57.Kg2 Qe4 58.Kh2 Qe2 59.Rf2+-) 1–0. Anastasian,Ashot – Beshukov,Sergey, Katowice Poland, 1993. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 h5 9.Nc3 Re8 10.h3 h4)

11.Qc2 Bf5 12.g4 hg3 13.fg3 Nh5 14.Bh5 (14.g4 Qh4 15.Kd1 Ng3=) 14...gh5= 15.Nd5 (15.Nde4 Qe7 16.Nd5 Qe4 17.Qe4 Be4-+ (worse 17...Re4 18.Nc7 Re3 19.Kf2=); worse 15.Nce4 d5 16.cd5 Qd5 17.Qc7 Na6-+) 15...Nd7 16.Nf4 Qg5 17.0-0-0 a5 18.b5 c5 (18...Qg3 19.Nh5 Qe3 20.Rhg1=+) 19.Nh5 Qh5 20.g4 Qg5 (20...Bg4 21.hg4 Qg5+= (21...Qg4? 22.dc5 Ne5 23.Rhg1+-)) 21.gf5+- Qe3 22.Rhe1 (22.Rde1 Qf2 23.Rhf1 Qh4 24.Re4 Qh3+-) 22...Qh6 (better 22...Qh3 23.Re4 cd4+=) 23.Kb1 (better 23.Re4 Nf6 24.Re8 Re8 25.dc5 dc5 26.Qd3+-) 23...e3= 24.Nf3 Qf4 25.Qg2 Qf5 26.Ka1 Re6 27.Qe2 Rae8 (27...Qh3 28.Ng5 Qg3 29.Ne6 fe6 30.dc5+-) 28.Rf1 Qh5 (worse 28...Qh3 29.Ng5 Qh4 30.Ne6 Re6 31.Rg1+-) 29.Rg1 Rg6 30.Rg6 (30.dc5!? Bb2 31.Kb2–/+) 30...fg6-+ (worse 30...Qg6 31.Rg1 Qf5 32.dc5+-) 31.Rd3 (31.dc5 Bb2 32.Kb2 Ne5–/+) 31...Bh6 (31...cd4 32.Bd4 Bd4 33.Nd4-+) 32.dc5 (32.Rd1 Rf8 (32...Qh3?! 33.dc5 dc5 34.Rg1–/+) 33.Rf1 cd4 34.Bd4 Bg7 35.Bg7 Kg7-+) 32...Rf8 (32...Qc5?! 33.Rd5 Qb6 34.h4=) 33.Qg2?? (33.c6 bc6 34.bc6=+) 33...Rf3-+ 34.Rd6 Nf8 (better 34...Rh3 35.Qg6 Qg6 36.Rg6 Kf7-+) 35.a3 White plans c6 (35.Rd1 Rf2 36.Qd5 Qd5 37.cd5 e2-+) 35...Qf5 (better 35...e2 36.Qe2 Ra3 37.Ba3 Qe2 38.Bb2-+) 36.c6 (36.Rd1-+) 36...a4 (better 36...Rf1 37.Ka2 bc6 38.bc6-+) 37.Ka2?? (37.Rf6 Rf2 38.Rf5 Rg2 39.Rf8 Bf8 40.cb7-+) 37...bc6 (37...Rf2 38.Qd5 Qd5 39.cd5-+) 38.bc6 Rf2 (38...Rh3 39.c7 Rh4 40.Rf6+-; 38...Qh3? 39.Qh3 Rh3 40.c7+-) 39.Qd5 Qd5 40.Rd5 (40.cd5 Bg7 41.Rd7 Rb2 42.Ka1 Nd7 43.cd7 Rb8 44.Ka2 e2 45.d8Q Rd8 46.Kb1 e1Q 47.Kc2 Rc8 48.Kd3 Rc3) 40...Bg7 (40...Bg7 41.Rb5 e2-+) 0–1. Teichmann,Erik O M C (2310) – Sanchez Jerez,E M (2200), 18th Obert Internacional Sant Marti Gro, 2016.

11.d5 Nbd7 12.Nb3 Nh7 13.Qd2 Ng5 14.0-0-0 Ne5 15.Rdf1 c6 16.f4 ef3 17.gf3 cd5 (17...Bh3 18.Rf2 cd5 A) worse 19.Qd5 Be6 20.Qd2 Rc8-+ (20...Bc4?! 21.f4=+); B) 19.f4 dc4 20.Nd4=+) 18.Nd5= (18.Qd5 Be6 (18...Nh3?! 19.f4 Nc6 20.Qd2=; 18...Bh3?! 19.f4=) 19.Qd4 Nc4 20.Qh4 Nb2-+) 18...Be6 (18...Bh3 19.Rh3 Nh3 20.f4+=) 19.Qd4 Bd5 (19...Rc8 20.Kb1=) 20.cd5+= Bf6 21.Qf4 (21.Qh4!? Rc8 22.Kb1 Ngf3 23.Qf2+=) 21...Nh7= 22.Kb1 (22.Rhg1 Bg5 23.Rg5 Rc8 24.Kd1 Qg5 25.Qg5 Ng5=) 22...Rc8 (22...g5 23.Rhg1 Ng6 24.Bf6 Qf6 25.Qf6 Nf6 26.Bd3 Re3 27.Bg6 fg6 28.Rg5=+) 23.Rc1 Qd7 (better 23...Rc1 24.Rc1 Qd7=) 24.Qh2 (better 24.Rc8!? Rc8 25.Qe4=) 24...Nf3!–/+ 25.Qf4 (25.Bf3 Qf5 Theme: Double Attack) 25...Bb2 (25...Rc1 26.Bc1 Ne5 27.Bb2–/+) 26.Kb2 (26.Rc8 Qc8 27.Kb2 Nfg5–/+) 26...Rc1 27.Rc1 Nfg5 28.Qh4 Re3 29.Bf1 Re5 (29...Qf5 30.Qh6 Re8 31.h4-+) 30.Qd4 (30.Qc4 Nf6 31.Bg2 Kg7–/+) 30...b6 (30...Nf6 31.Na5 Qf5 32.Qa7 Rd5 33.Nb3–/+) 31.Nd2 (31.Qc4 Nf6 32.Bg2 Kg7–/+) 31...Qf5-+ 32.Bc4 Qh3 33.Bb3 (33.Rc3 Qg2-+) 33...Nf6 (33...Re2 34.Ka3-+) 34.Rc6 Nge4 (better 34...Qg2 35.Ka3 Nge4 (35...Nd5 36.Rd6 Qg3 37.Rd5 Rd5 38.Qd5+-) 36.Ne4 Qe4-+ (36...Ne4?! 37.Rd6 Re8 38.Rc6–/+)) 35.Nc4?? (better 35.Ne4 Ne4 36.Rc7-+) 35...Rd5 36.Qg1 (36.Qe3 Qd7 37.Rb6 ab6 38.Nb6-+) 36...Qd7 37.Ne5 de5 (better 37...Re5!? 38.Qg6 Kf8 39.Rc8 Re8 40.Qh6 Ke7 41.Rc4-+) 38.Bd5 Qd5 (38...Qd5 39.Rc8 Kg7-+) 0–1. Novkovic,M – Howell,J, Liechtenstein, 1995. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 e4 8.Nfd2 h5 9.Nc3 Re8 10.h3 h4)

8.0-0 Qe7 9.Nc3 Bd7 10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 b6 (13...ed4 14.Nd5 Nd5 15.cd5+=) 14.de5 Ng4?? (better is 14...de5 15.Rd1 Bf5+/-) 15.Nd5+- de5 (15...Qf8 16.Nc7 Rc8+-) 16.Ne7 Re7 17.Qa7 f5 (17...Re8 18.Qc7 e4 19.Bg7 Kg7 20.Nd4+-) 18.Qb8 Kf7 19.Ng5 Kf6 20.Ba3 (20...Re8 21.Nh7 Kf7 22.Qc7+-; 20.Nh7 Kf7 21.Qd8 g5 22.Ng5 Kf6+-) 1–0. Trkn – guest306, ICC, 2005.

8.b5 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nfd7 12.0-0 ed4 13.ed4 (13.Bd4 Ne5+=) 13...Nb6 (13...d5 14.cd5 Nb6 15.Nc3=) 14.Nc3 Be6 15.Qb3 N8d7 16.Rd1 Qe7 17.h3 Ra8 18.Bf1 Nf6 19.d5 Bc8 20.Re1 Qd8 21.Bb2 Nbd7 22.Ne4 (22.Na4 Nh5 23.Qe3 Nhf6+=) 22...h6 (22...Ne4 23.Bg7 (23.Re4? Nc5 24.Qe3 Ne4 25.Bg7 Kg7 26.Qe4 Ra1-+) 23...Kg7 24.Re4+=) 23.Bd4 (23.Nf6 Bf6 24.Bf6 Qf6 25.Re8 Kg7=) 23...b6 (23...Ne4 24.Bg7 Kg7 25.Re4=) 24.Qc2 Nc5 25.Nc3 (25.Nc5 bc5 26.Bc3 Bf5+=) 25...Bf5 26.Qd1 g5 27.g4 (27.Bc5 bc5 28.Bd3 Bd7+=) 27...Bg6= 28.Qc1 Nb3 29.Qe3 Nd4 30.Nd4 (30.Qd4? Ne4 31.Ne4 Bd4 32.Nd4 Qf8-+) 30...Qe8 31.Qc1 Qd7 32.Nc6 Re8 33.Re3 Kf8 34.Qe1 Re3 35.Qe3 Qe8 ½–½. Mittelbachert,U (2000) – Boecker,Juergen (1915), 43rd Sparkassen Open, 2015. (=1.Nf3 Nf6 2.c4 g6 3.b4 d6 4.e3 Bg7 5.Bb2 0-0 6.Be2 e5 7.d4 Re8)

8.b5 Nbd7 9.Nc3 ed4 10.Nd4 Nc5 11.0-0 h5 12.h3 Bd7 13.Qc2 Qc8 14.Rfd1 Re5 15.Bf1 Qf8 16.Nb3 Bf5 17.Qe2 Nce4 (17...Nb3 18.ab3 Ree8 19.Qd2+=) 18.Rac1 Rae8 (18...Re7 19.Ne4 Ne4 20.c5+=) 19.Nd5 Nd5 20.cd5 R5e7 21.Bg7 Qg7 22.Rd4 b6 (22...Qe5!?+=) 23.Rdc4+- Nc5 24.Qd1 Bd7 (24...Re5 25.Nc5 dc5 26.Ra4+-) 25.Nc5+- dc5 26.Ra4 Ra8 27.d6 (27.Ra6!?+-) 27...cd6+= 28.Qd6 Qf8 (28...Qe5 29.Qe5 Re5 30.Bc4=) 29.Be2 Be6 30.Qg3 Qg7 31.Rd1 Rc8 (31...Qb2 32.Bh5 Rae8 33.Bf3=) 32.Bc4 (32.Qh4 Rce8+-) 32...Qf6+= 33.Be6 Qe6 34.Rd6 Qf5 35.e4 Re4 36.Ra7 h4 37.Qc3 Re2 (better 37...Re6!? 38.Re6 Qe6= (38...fe6?? 39.Qg7)) 38.Rf6+- Qb1 39.Kh2 Re1 40.Rg6 Qg6 41.Qe1 c4 42.Qe5 (42.Qc3!? Qf5 43.f3+=) 42...c3= 43.Rc7 Rc7 44.Qc7 c2 45.Qd8 (45.Qc8 Kg7 46.Qc3 f6 47.Qc7 Kh6=+) 45...Kg7=+ 46.Qd4? (better 46.Qd2=+) 46...Qf6-+ 47.Qd2 Qe5 48.f4 Qc5 49.Qc1 Qc4 50.a4 (50.f5 Qd3 51.Qg5 Kf8 52.Qh6 Ke7 53.Qh4 Kd7 54.Qg5-+) 50...Qa4 (better 50...Qd3 51.a5 Qd1 (51...Qb5?! 52.Qc2 ba5 53.Qc8=) 52.Qb2 Kg8-+) 51.f5 f6 52.Qe3 Qc4 (52...Qb5?! 53.Qe7 Kg8 54.Qd8 Kf7 55.Qc7 Ke8 56.Qc8 Ke7 57.Qc7 Qd7 58.Qc2 Qd6 59.Kh1=+) 53.Qc1 Qe2 (53...Qe2 54.Qa3 Qe5 55.g3 Qe2 56.Kg1 Qe1 57.Kg2 c1Q 58.Qc1 Qc1 59.gh4 Qc2 60.Kg3 Qf5-+) 0–1. Kaenel,Hansjuerg (2345) – Cvitan,Ognjen (2505), Suhr op, 1992. (=1.Nf3 d6 2.d4 Nf6 3.c4 g6 4.b4 Bg7 5.Bb2 0-0 6.e3 e5 7.Be2 Re8)

8.Nc3 ed4 9.Nd4 c5 10.Ndb5 (10.bc5!? dc5 11.Nf3=) 10...cb4+= 11.Nd5 Nd5 12.Bg7 Ne3 13.fe3 Kg7 14.Nd6 Rf8 15.0-0 Nc6 16.a3 (16.Bf3 Qe7 17.Qd2 f6=) 16...ba3 (16...Qg5 17.Qd2 ba3 18.Ra3=) 17.Ra3 (17.c5 Qa5 18.Qc1 a2=) 17...Qe7 (17...Qg5 18.Bf3=) 18.Bf3 (18.c5 f5=) 18...Ne5 (18...f6 19.c5=) 19.Qd4 (19.c5 f6=) 19...Rd8 (19...f6 20.Be4=) 20.c5 f6 21.Bd5 a6 (21...Nc6 22.Qa4+=) 22.Rb3 (22.Rb1 Rb8 23.Ra6 Nd7 24.Nc8 Rdc8+=) 22...Rb8= 23.Rb6 Nd7 24.Ne4 Nb6 (24...Rf8 25.Re6 Qd8 26.Rd6+/-) 25.Nf6+/- Nd5 26.Nd5 Kh6 27.Ne7 Rd4 28.ed4 Bd7 29.d5 Re8 (29...Rd8 30.Rf6 Bb5 31.Rb6+/-) 30.Rf7 a5 31.d6 (31.Ng6!? Kg6 32.Rd7+/-) 31...a4+= 32.Ng8 (32.Rf1 Ra8+=) 32...Rg8 33.Rd7 Rb8 34.Rb7?? (34.Re7 a3+=) 34...Rb7= 35.c6 Rb1 36.Kf2 a3 37.d7 ½–½. Rodin,Efim Grigorievich – Kristol,Luba Danielovna, corr RSFSR–7ch, 1979.

8.de5 Nfd7=.

8.de5 de5 9.Qd8+- (worse 9.Be5 Qd1 10.Bd1 Re5 11.Ne5 Nfd7–/+) 9...Rd8 10.Be5 Nc6 11.Bc7 Rd7 12.Bg3?? (12.Be5 Ne5 13.Ne5=) 12...Nh5 (12...Nb4?! 13.Na3=) 13.Nbd2 (13.b5 Nb4 14.Nd4 Ng3 15.hg3 Rd4 16.ed4 Bd4 17.Kd2 Ba1 18.Nc3 Bc3 19.Kc3 Na2 20.Kb3=) 13...Ba1 14.0-0 (14.b5 Ng3 15.hg3 Nb4-+) 14...Bc3 15.a3 (15.b5 Ng3 16.hg3-+) 15...Bd2 16.b5 Ne7 (16...Ng3 17.hg3 Ne7 18.Ne5-+) 17.Rd1 (17.Be5 Ba5-+) 17...Ba5 (17...Ng3 18.hg3 Bc3 19.Rb1-+) 18.Bh4 (18.Bd6 Nf5 19.c5 Nf6-+) 18...Rd1 19.Bd1 Nf5 20.Bg5 h6 21.Bh4 (21.g4 hg5 22.Ng5 Ne3 23.fe3 Nf6-+) 21...Nh4 22.Nh4 g5 (22...Be6!? 23.Be2-+) 23.Nf3 Bg4 24.h3 Bf3 (better 24...Rd8!? 25.Be2 Be6 26.c5-+) 25.Bf3 Nf6 26.Bb7 Rd8 27.c5 Rd3 28.a4 Rc3 29.c6 Ne8 (29...Rc1!? 30.Kh2-+) 30.Bc8 (30.Kh2 Nd6 31.h4 Rc4 32.hg5 hg5-+) 30...Nc7 31.Bd7 Ra3 32.Kf1 Ra4 33.Ke2 (33.g3 Ra1 34.Kg2 Nb5-+) 33...Rb4 (33...Ra2 34.Kf3-+) 34.Kd3 Rb5 35.Kc4 a6 36.Bc8 Be1 37.f3 a5 38.e4 (38.Kd3-+) 38...a4 39.Ba6 Rb8 (39...Rb4 40.Kd3 a3 41.Bc4 Rc4 42.f4 a2 43.Ke2 a1Q 44.fg5 Qb2 45.Kf3 Qf2 46.Kg4 Re4 47.Kh5 Qh4) 40.Bb7 a3 41.Kb3 Nb5 42.Ka2 (42.f4 Rd8 43.fg5 Rd2-+) 42...Bb4 (42...Rd8 43.Kb3 Rd2 44.c7 Rb2 45.Ka4 a2 46.c8R Kg7 47.Rc1 Rb1 48.Rb1 ab1Q 49.g3 Qb4) 43.Kb3 Nc3 (better 43...Nd6!? 44.Ka2-+) 44.g3 (44.c7 Re8 45.c8R Rc8 46.Bc8-+) 44...a2 45.Kb2 (45.c7 Rc8! 46.Bc8-+) 45...Rd8 46.c7 Rd2 47.Ka1 Rd1 48.Kb2 a1Q 49.Kb3 Qb1 (49...Qa4 50.Kc4 Bd6 51.Kc3 Be5) 50.Kc4 (50.Kc4 Bf8 51.Kc3 Rd3 52.Kc4 Qb3) 1–0. Fournier,Frederic (1900) – Mixcoatl (1615), Active, 2006.

9.Nd4 Nbd7 10.Nc3 h5? 11.Qb3 Ne5 12.Rad1 Bd7 13.h3 Qc8 14.Kh2 Nc6 15.Nd5 Qd8 16.Nf4 Ne5 17.c5 -+ dc5 18.bc5 c6 19.Nf3 Nf3 20.Bf3 Qc7 21.Kg1 Be6 22.Qa4 Bf5 23.Rd6 Ne4 24.Bg7 Kg7 25.Qd4 Kg8 26.Be4 Re4 27.Qf6 Rae8 28.Nh5 gh5 29.Qf5 R8e5 30.Qf6 1–0. Kovacevic – Masic, Sombor 1976.

9.Nd4 Nbd7 10.Nf3 b6 11.Nbd2 Bb7 12.Qc2 a5 13.a3 Qe7 14.Bd3 (14.Rfd1 a4=) 14...Ne4 (14...Ne5 15.Ne5 de5 16.Bc3=) 15.Ne4 Be4 16.Bg7 Kg7 17.Be4 Qe4 18.Qc3 Ne5 19.Ne5 Qe5 20.Qe5 Re5 21.Rfd1 (21.b5 h6=) ½–½. De Smet – Oakes,Barrie, corr ICCF TT–4–90 SF, 1994.

9.Nfd2 c6 10.Nc3 Na6 11.Qb3 Nc7 12.d5 Bf5 13.a4 White intends b5 13...h5 (13...Rc8 14.a5=) 14.b5 cd5 15.cd5 Nd7 16.Nc4 Nc5 17.Qa3 (17.Qd1 Qg5 18.Kh1 Rad8=) 17...b6 (17...h4 18.Rac1=) 18.Rfd1+= Qe7 19.Na2 (19.Rac1 Reb8+=) 19...Bb2= 20.Nb2 Qg5 21.Nc4 (21.Nc3 h4=) 21...Bh3 22.Bf1 Bg4 (22...Nd5 23.Nd6 Red8 24.Nc4=) 23.Rd4+= (worse 23.Nd6 Red8 (worse 23...Nd5 24.Bc4 Bf3 25.g3+-) 24.Ne4 Ne4–/+) 23...Qf6 (23...Nd5 24.Nd6 Re6 25.Nc4+=) 24.Nb4 Bd7 25.Rad1 (25.Rd2 Bg4+=) 25...Rad8 (25...h4 26.Nc6=) 26.Qa2 ½–½. Kraft,Gerhard (1650) – Schurig,Wilhelm (1885), 2rd Berlin Germany, Senior Championship, 2010.

9.Nfd2 h5 10.Nc3+= Bf5 11.a4 Nbd7 12.a5 h4 13.a6 b6 (13...ba6 14.Ra6 h3 15.Nb5+=) 14.b5 Nf8 15.Re1 h3 16.g3 N8h7 17.Na2 Qd7 18.Nb4 Bg4 19.Nc6 Ng5 20.Rc1 Be2 21.Qe2 Qg4 22.Nb4 Qf5 23.Ba1 Kh7 24.Nd5 (24.Bc3 Nf3 25.Nf3 Qf3+-) 24...Rac8 (24...Nd5 25.cd5 Rac8 26.Qc4=) 25.Nb4 Bh6 (25...Ra8 26.Nc6+-) 26.Nd5 (26.Nc6 Ra8+-) 26...Bg7 (26...Nd5 27.cd5 Qd5 28.Rc6=) 27.Nb4 Bh6 (27...Ra8 28.Bc3+-) 28.Nd5 (better 28.Nc6!? Ra8 29.d5+-) 28...Bg7 (28...Nd5!? 29.cd5 Qd5=) 29.Nb4 ½–½. Kozomara,Vladimir – Uhlmann,Wolfgang, Sarajevo, 1963. (=1.d4 Nf6 2.Nf3 d6 3.c4 g6 4.b4 Bg7 5.Bb2 0-0 6.e3 e5 7.Be2 Re8 8.0-0 e4)

9.0-0 Nc6+= 10.Nc3 Nge5 (worse is 10...de5 11.Qd8 Rd8 12.Rfd1 Rd1 13.Rd1+=; worse is 10...Be5 11.b5 Bc3 12.Bc3+/-) 11.Ne5 Ne5 12.Qb3 Qh4 (12...a5 13.b5=) 13.Nd5 Qd8 14.Rac1 c6 15.Nf4 Bf5 16.Rfd1 Qe7 17.h3 Rad8 18.Bd4 Ra8 19.Qb2 f6 20.a4 Qf7 21.c5 d5 22.b5 Bf8 23.a5 Rab8 24.Qa1 g5 25.Nd3 Bg7 26.Nb4 Qg6? (better is 26...cb5!? 27.Bb5 Red8+/-) 27.a6+- g4 28.hg4 Bg4 29.Bg4 Qg4 (29...Ng4 30.ab7 Rb7 31.Qa6+- (31.Nc6?! Qh5+=)) 30.Be5 fe5 31.bc6 e4 (31...Qb4 32.cb7 Re7 33.c6+-) 32.Qa2 bc6 (32...ba6 33.Na6 Rbc8 34.Qd5 Kh8 35.Qd7+-) 33.Nc6 Rb2 34.Qd5 Kh8 35.Rd2 Rd2 36.Qd2 Rg8 37.Ne7 Re8 38.c6 Bf6 39.c7 (39.c7 Be7 40.Qc3 Qg7 41.c8Q Rc8 42.Qc8 Bf8 43.Qb7+-) 1–0. Pakleza,Zbigniew – Dlugosz,Jedrzej, 60 Ch Poland Dzwirzyno, 2004. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d4 Re8)

9.0-0 de5 10.Nc3+=.

9.0-0 Ne5 10.Qb3 (10.Ne5 Re5 11.a4 a5+=) 10...Nf3 11.Bf3 Bb2 12.Qb2 Nd7 13.Nc3 Ne5 14.Be2 Be6 (14...a5=) 15.Nd5 (15.c5!?=) 15...c6+= 16.f4 (16.Nf4 Bc4 17.a4 Qd7+=) 16...Nd7 (16...cd5!? 17.fe5 dc4–/+) 17.Nc3= Qb6 18.Qd2 Bf5 19.Nd1 Nf6 20.Rc1 Ne4 21.Qb2 h5 22.Re1 a5 23.b5 Qc5 24.Bf3 Rac8 25.Nf2 Nf2 26.Kf2 Be4 27.Qd4 f5 (27...Bf3 28.Qc5 dc5 29.Kf3 cb5 30.cb5=) 28.Qf6 Kh7 29.Rcd1 d5 (29...cb5?? 30.Rd6 Qd6 31.Qd6+-) 30.cd5 Rf8 (30...Qb5 31.Be4 Rc7 32.d6+-; 30...cb5 Worse is 31.d6 Bf3 32.gf3+/- (32.Kf3?! Qc6 33.Kf2 Qd7=); 30...cd5?! 31.Re2=) 31.Qd4 cd5 32.Be4 fe4 1–0. Jeric,Simon (2325) – Kugelmann,Werner (2185), Jacques Lemans op, 2001. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 Re8 7.d4 e5 8.de5 Ng4)

9.Nc3 de5 10.Qd8 Rd8 11.h3+/-.

9.Nc3 Ne5 10.Ne5 Be5 11.0-0 Nc6 12.a3 (12.b5 Na5=) 12...Be6 (12...Qh4 13.g3 Qh6 14.b5=) 13.Qd2+= Bg7 14.Nd5 Bb2 15.Qb2 Ne5 16.Qd4 Nd7 17.Rfd1 a5 18.c5 ab4 19.ab4 Ra1 20.Ra1 dc5 21.bc5 Bd5 22.Qd5 c6 23.Qd6 Qe7 24.Rc1 Qd6 25.cd6 f5 26.g4 fg4 27.Bg4 Ne5 28.Bh3 Rd8 29.f4 Nd3 (29...Nf3 30.Kf2 Nd2 31.d7+=) 30.Rd1+= Nc5 31.Bg2 Kf7 32.e4 (better 32.Kf2!?+=) 32...Ne6=+ 33.h4 h6 (worse 33...Nf4 34.Rf1+-) 34.e5 Nf4 35.Rf1 (35.Bf3 c5=+) 35...g5–/+ 36.hg5 hg5 37.Bh3 Kg6 (better 37...Re8!? 38.d7 Rd8–/+) 38.Bg4= Nd5 39.Re1 Kg7 40.Kh2 Kf8 (better 40...b5!?=) 41.Kg3+- Kf7 (better 41...c5+-) 42.e6+- Kf6 43.e7 Ne7 44.Re6 (44.de7 Re8 45.Re6 Kf7=+) 44...Kf7 45.Re7 (worse 45.de7 Re8=+) 45...Kf6 (45...Kf8 46.Bd7 b5 47.Kf3+-) 46.Re6 Kf7 47.Bf5 b5 48.Kg4 b4 49.Kg5 b3 50.Rf6 Kg7 51.Rg6 Kh8 (51...Kf8 52.Kh6 c5 53.Kh7 Rd6 54.Rd6+-) 52.d7 (52.d7 Kh7 53.Re6 Kg8 54.Re8 Kf7 55.Bg6 Kg7 56.Rd8 b2 57.Re8 b1Q 58.Re7 Kf8 59.d8Q) 1–0. Krnic,Zdenko – Knaak,Rainer, Wijk aan Zee, 1988. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.Be2 Re8 8.de5 Ng4)

8.Nc3 Nc6 9.ed6+/- Nb4 10.dc7 Qc7 11.Be2 Qa5 12.0-0 Nc5 13.Nd4 Be6 (13...Rd8 14.Ncb5+=) 14.Qd2 Nc6 15.Rfd1 Rfd8 16.Ncb5 Qa4 17.Qc1 Ne5 18.Nc7 Rac8 19.Nce6 Ne6 20.Ne6 fe6 21.Rd8 Rd8 22.Bd4 Qd7 23.Qc3 Nc6 24.Bg7 Qg7 25.Qg7 Kg7 26.Rd1 Rd1 27.Bd1 Kf6 28.Bf3 Nb4 29.a3 Nc2 30.Bb7 Na3 31.c5 Ke7 32.Kf1 Nc4 33.Ke2 Na5 34.Ba6 (better is 34.Bc8!?+/-) 34...Nb3= 35.c6 Kd6 36.Bb5 Nc5 37.f4 a6 38.Bc4 Kc6 39.Kd2 a5 40.Kc3 Kd6 41.Kd4 ½–½. Krnic,Zdenko (2410) – Hazai,Laszlo (2460), Vrnjacka Banja, 1984. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

8.Bd3 Nc6=.

9.Nc3 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 b6 13.Be2 Bb7 14.0-0 e4 15.Nd2 Nf6 (15...f5 16.Rd1 c5 17.Nd5 Ba1 18.Ra1 Bd5 19.cd5 Qf6+= 0.50) 16.Rd1 Qe7 (16...Qe8 17.Bb2 Qe6 18.Nb5 Qe7 19.Bc3 Rd8= 0.19) 17.Nb5 (17.Nd5 Bd5 18.cd5 Rd8 19.Bf6 Bf6+= 0.56) 17...Nc6 18.c5 (18.Bc3 Rd8 19.Qb2 Rd7= 0.22) 18...bc5 19.bc5 Bc8 (worse is 19...Qc5 20.Bf6 Bf6 21.Ne4+/-; 19...Rb8= 0.00) 20.Qa4 Bf5 21.h3 h5 22.Nb3 Rd8 23.Rd8 Qd8 24.N5d4 Nd4 25.Nd4 (25.ed4?! Nd5=) 25...Qc8 26.Qa7 Nd5 27.Bc4 Ne7 28.Nf5 gf5 29.Bg7 Kg7 30.Qa1 f6 31.Qd1 Qe8 32.h4 Kh6 33.Be6 Kg6 34.Bd7 Qb8 35.c6 Kh6 36.Qd4 Kg6 37.Qc5 Qd8 38.Kh2 Kh6 39.Kg3 Qf8 40.Kh3 Qf7 41.Bf5 Nd5? (better is 41...Kg7+-) 42.Kh2 1–0. Mirzoev,A (2520) – Van der Weide,K (2445), Sevilla ESP, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Nc3 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 e4 13.Nd2 Nf6 (13...f5 14.Be2=) 14.Be2 (14.Qb2 Nc6 15.Nce4 Ne8+=) 14...Na6 (14...Bf5 15.0-0=) 15.0-0 (15.Qb2 Bf5+=) 15...Nb4 (15...Qe7 16.Qb2 Qb4 17.Qb4 Nb4 18.Nce4 Ne4 19.Ne4+=) 16.Nce4 Ne4 17.Ne4 (17.Ne4 Ba1 18.Ra1+=). genseric (1980) – magio (2025), internet, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.d4 e5)

9.Nc3 a5 10.b5 Nc5 11.Qc2 Bg4=.

9.Nc3 c5 10.a3=.

9.Be2 a5=.

9.Nbd2!?

9.Be2 a5 10.b5 (10.Ne5 de5 11.b5 a4 12.Qb4 Qg5 13.Bf3 Re8 14.Nd2 Qh4 15.Rd1 Bf8+= 0.31; 10.ba5 Nbc6 11.Ne5 de5 12.0-0 Na5 13.Qc2 Nc6 14.Rd1 Qh4 15.Nc3 Bf5= –0.03) 10...Nbd7 (10...a4 11.Qb4 Nbd7 12.0-0 Nf3 13.Bf3 Ne5 14.Be4 Re8 15.Bc3 Qh4= –0.16; 10...Bf5 11.Ne5 de5 12.Nc3 Qh4 13.Nd5 Rc8 14.b6 a4 15.Qc3 Na6+= 0.34) 11.Nbd2 (11.0-0!?= Re8 12.Nbd2 Qe7 13.Qc2 Nc5 14.Ne5 Be5 15.Be5 Qe5= –0.03) 11...Nc5+= 12.Qa3?? (better is 12.Qc2 Bf5 13.e4 Nf3 14.gf3 Bb2 15.Qb2+= Be6+= –0.66) 12...Ned3!!-+ 13.Bd3 (13.Qd3 Nd3 (13...Bb2?! 14.Qb1 Qf6 15.Nd4 Ba1 16.Qa1-+) 14.Bd3 Bb2-+) 13…Bb2 (13...Bb2 14.Qc5 dc5-+ (14...Ba1?! 15.Qd5-+); 13...Nd3?! 14.Qd3 Bb2 15.Rb1=) 0–1. Fernandez,He (2150) – Mittelman,G (2435), 7th Itau Cup, Sao Paulo BRA, 2003. (=1.Nf3 Nf6 2.b4 g6 3.e3 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5)

10.Na3 a5 (10...Qe7 11.Bd3 Rd8 12.Be4 Nd7 13.0-0 c5 14.Bc3 Nf6 15.Bc2 Bg4=) 11.Rd1 Qh4 12.Nb5 Bg4 13.Rd2 Na6 14.ba5 Nc5 15.Qa3 Ne4–/+.

10.Nc3 a5 11.Rd1 Qh4 12.Nd5 Bg4 13.Rd2 c6 14.Nc7 Ra7 15.ba5 Nd7=.

10.Nc3 Be6 11.Be2 Nd7 12.0-0 f5 13.Rfd1 c6 14.Rd6 Qe7 15.Rad1 Nb6 16.b5 Rfd8 17.Ba3 ½–½. Lenic,L (2545) – Martinovic,Sa (2425), 14th HIT Open, Nova Gorica SLO, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

10.Nc3 Bg4 11.h3 Be6 12.Rd1 Nd7 13.Be2 c6 14.0-0 a5 15.Ba3 Qg5=.

10.Nc3 Qh4 11.Nd5 Na6 12.Ba3 e4 13.Rd1 Bg4 14.Rd2 c5 15.b5 Nb4+=.

10.c5 Nc6! 11.Nd2 (11.Bc4!? Qg5!? (11...a5! 12.b5 a4 13.Qc3 Ne7 14.0-0 Nf5 unclear)) 11...a5 (12.b5 Nb4 13.Bc4 Be6!? unclear). Balendo – Samarin, corr 1988. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.de5 Nfd7 8.Qb3 Ne5 9.Ne5 de5)

9.Qb3 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 e4 13.Nd2 Re8 14.Be2 Qg5 15.0-0 (worse is 15.Nde4 Re4 16.0-0 Re8-+) 15...Nf6 16.Kh1 Bg4 17.c5 Nc6 18.Bc4 Re7 19.Nd5 Nd5 20.Bd5 Be2 21.Re1 (21.Be4?? Bf1 22.Bc6 bc6 23.Nf1 Ba1-+) 21...Bd3 22.Bg7 Kg7 23.f3 f5 24.b5 Nd8 25.Kg1 Qf6 26.fe4 fe4 27.Rc1 Re5 28.c6 b6 (28...bc6!? 29.Bc6 Nc6 30.bc6 Re7=) 29.Bc4+= Rc5 30.Re1 Bc4 31.Nc4 Qe6 32.Qb2 Kg8 33.Nd2 Nf7 34.Ra1 Kf8 (34...h6 35.Ra4 Re5 36.Ra7+=) 35.Ra8+/- Ke7 36.Ra4 (36.Ra7 Qd6 37.h3+- (37.Ne4 Qd1 38.Kf2 Rf5 39.Kg3 Qe1 40.Qf2 Rf2 41.Rc7 Ke6 42.Kh3 Qe3 43.Kh4 Qe4 44.g4 g5 45.Kh5 Rh2#)) 36…Nd6=. Eising,Johannes – Planinc,Albin, Bath, 1973. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Qc2 c6 10.Be2 Qe7 11.a3 a5 12.b5 Nc5 13.a4 (better is 13.0-0+=) 13...Bf5–/+ 14.e4 Be6 (better is 14...Ne4!? 15.Ne4 Be4–/+) 15.0-0= Nbd7 16.Ba3 Rfd8 17.Rfd1 f6 18.bc6 bc6 19.Rab1 Qf7 20.Rd6 Rdc8 21.Bc5 Nc5 22.Rb6 Qe8 23.Rd1 Bf8 24.Rdb1 Qf7 25.Nd1 Qc7 26.Ne1 Rab8 27.Rb8 Rb8 28.Rb8 Qb8 29.Nb2 Nb3 30.Ned3 Nd4 31.Qd2 Ne2 32.Qe2 Qb3 33.f3? (better is 33.c5!?+=) 33...Bc4-+ 34.Nc4 Qc4 35.Qd1 Kg7 36.g3 Qd4 37.Kg2 c5 38.Nf2 c4 39.Qd4 (39.Qb1 Bb4-+) 39...ed4 40.Kf1 Kf7 41.f4 Ke6 42.h4 h5 43.Nd1 Kd6 0–1. Kievelitz,Bernd (2115) – Niehaus,Frank (2235), Berlin Lichtenberger op, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Nfd7 8.Nc3 de5)

9.c5 a5 10.a3 ab4 (10...Re8 11.Ne4=) 11.ab4 Ra1 12.Ba1 (12.Qa1 b6=) 12...b6 13.Qd5 (13.cb6 Nb6 14.Qc2 Bf5=) 13...bc5 (13...c6 14.Qb3+=) 14.bc5 (14.b5 Qf6+=) 14...c6–/+ 15.Qd6? (better is 15.Qc4–/+) 15...e4!-+ 16.Nd4 (16.Ne4 Qa5) 16...Be5 17.Nc6 Nc6 (worse is 17...Bd6 18.Nd8 Nc5 19.Nf7 Kf7 20.Be2-+) 18.Qc6 Qa5 19.Kd2 (19.Qe4 Qa1 20.Nb1 Bc3 21.Ke2 Qb2 22.Kf3 Bb7 23.Nc3 Nc5 24.Qb7 Qb7 25.Kg3 Qe7-+) 19...Rd8 20.Kc2 (20.Bb5 Nb8 21.Qd6 Bc3 22.Bc3 Rd6 23.cd6 Qb5 24.Kc1-+) 20...Qa1 21.Nd5 Qb2 22.Kd1 Nf6 23.Bc4 Bc3 (23...Bc3 24.Qe8 Ne8 25.c6 Qd2#) 0–1. Helgesen,H – Cavaletto,M, corr Switzerland–Norway, 1994.

9.Nd2 a5 10.b5 Re8 11.Na4 Bf8 12.Be2 Nc5 13.Nc5 Bc5 14.0-0 Nd7 15.Ne4 Bf8 16.Qd5 Qe7 17.c5 Nc5 18.Ba3 Bf5 (18...Rd8!? 19.Qc5 Qh4 20.Qc7 Ba3 21.Qe5 Bf5 22.Nf6 Kg7 23.Nh5 Kf8+-) 19.Nc5+- (19.Bc5?! Be4 20.Qe4 Qc5 21.Qb7 e4+=) 19...b6 20.e4 Rad8 21.Qc4 Rd4 22.Nb3 Rc4 23.Be7 Re4 24.Bf8 Re2 25.Bh6 a4 26.Nd2 Bd3 27.Rfc1 Re7 28.Nc4 f6 29.Be3 Kf7 30.Rc3 Rd7 31.h4 Ke6 32.a3 Rd5 33.Rac1 f5 34.g3 Ra2 35.Bh6 Rd4? (35...Bc4 36.Rc4 Rb5 37.Rc6 Kd5 38.Rc7 Rc5 39.Rd1 Ke4 40.Re1 Kf3 41.Re3 Kg4 42.Rc5 bc5+/-) 36.Ne5!+- Bb5 (36...Ke5 37.Bg7) 37.Nf3 Re4? (better is 37...Rd3+-) 38.Ng5 (38.Ng5 Kd5 39.Ne4 fe4 40.Rd1 Ke6 41.Rd4+-; worse is 38.Rc7 Ra3 39.Ng5 Kd5+-) 1–0. Dizdarevic,Emir (2540) – Misanovic,Vesna (2360), Osijek, 1993. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Be2 a5 10.a3 c6 11.0-0 Qe7 12.Qb3 b6 13.Rfd1 Na6 14.Ne4 Nf6 15.Ng3 e4 16.Nd2 Bb7 17.Rab1 ab4 18.ab4 c5 19.bc5 Nc5 20.Qb6 Ra6 21.Qb4 Ra4 22.Qc3 Bc6 23.Ra1 Qb7 24.Rdb1 Rfa8 25.Qc1 Qd7 26.Ra4 Ba4 27.Bf6 Bf6 28.Nge4 Ne4 29.Ne4 Be5 30.Bf3 Rc8 31.g3 Qd3 32.Rb4 Bc6 33.c5 Ra8 34.Kg2 Ra1 35.Qc4 Qc4 36.Rc4 Bb5 37.Nd2 Bc4 38.Nc4 Bc7 39.h4 Kf8 40.h5 Rc1 41.Bd5 gh5 42.Kf3 ½–½. Kempinski,R (2570) – Szelag,M (2365), Polish Supercup, 2002.

9.Be2 e4 10.Nd2 f5 (10...a5 11.b5 (worse is 11.Nde4 ab4 12.Na4 Qe8 13.Bg7 Kg7–/+) 11...f5 12.0-0=) 11.Nb3 (11.0-0 Nc6=) 11...Ne5 12.Qd5 Kh8 13.Qd8 Rd8 14.0-0 (14.Rd1 Rd1 15.Nd1 Nbd7=) 14...Be6 15.Rad1 Na6 16.b5 (16.Nb5 Nd3 17.Bg7 Kg7+=) 16...Nb4+= 17.Nc5 Bc4 18.Nb7 Rd1 19.Rd1 Ned3 20.Ba1 a6 21.ba6 Ba6 22.Bd3 ed3 (22...Bb7?! 23.Bb5=) 23.Nc5 Bc4 24.a4 Nc2 25.Bb2 Rb8 26.Nd3 Kg8 (26...Rb3–/+) 27.a5 (better is 27.Nb5!? c6 28.Bg7 Kg7 29.Ne1 cb5 30.Nc2 ba4 31.f3+=) 27...Bd3-+ 28.Rd3 Rb2 29.g3 (better is 29.Kf1 Nb4 30.Rd8 Bf8 31.g3-+) 29...Rb8-+ 30.Kf1?? (30.Nd1-+) 30…Nb4 (30...Nb4 31.Rd7 Bc3 32.Rc7 Be5-+) 0–1. Djurkovic,Maks (2145) – Mazi,Leon (2380), Feffernitz Raika op, 2000. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.c4 0-0 5.Bb2 d6 6.e3 e5 7.de5 Nfd7 8.Nc3 de5)

9.Be2 e4 10.Nd4 c5 11.bc5 Nc5 (11...Re8 12.0-0 Nc5 13.Nd5 b6 14.Rb1 Bb7 15.Nb3 Bb2 16.Nc5 Bd5+= 0.34) 12.0-0 b6 (12...Nc6 13.Nc6 bc6 14.Qc2= (14.Ba3 Qa5 15.Bc5 Qc5 16.Ne4 Qe7= –0.25) 14...Qa5 15.Rab1 Rd8 16.Ba1 Bf5= 0.03) 13.Qc2 (13.f3 Re8= (13...f5 14.fe4 fe4 15.Qd2 Rf1 16.Rf1 Be6= 0.12) 14.Qd2 Bb7 15.Rad1 ef3 16.Bf3 Bf3= 0.06) 13...Bb7 (13...Re8 14.Rad1 (14.Rfd1 Qg5 15.Nd5= Bh3 16.Nf4 Bg4= 0.19) 14...Qg5 15.Kh1 Qh6 16.f4 Nba6+= 0.28) 14.Rfd1 (14.Rad1 Qh4= 15.f3 ef3 16.Bf3 Bf3= 0.06) 14...Nbd7 (14...Qg5 15.Ndb5 Nbd7 16.Nd5= Bb2= 0.25; 14...Qh4 15.Nd5 Nbd7 16.Nb3 Rfd8= 0.22) 15.Nb3 (15.Ndb5 Qh4= 16.Nd5 Ne5= 0.09) 15...Qg5 (15...Qh4 16.Nd5 Rfd8= 0.22) 16.Nd5 Rac8 (16...Rfd8= 0.09) 17.Bg7 Kg7 18.Qb2 Qe5 19.Rab1 (19.Qa3 Rfd8=) 19...Qb2 20.Rb2 Ne5 21.Nc5 Rc5 22.Rb5 Rfc8–/+ 23.Rc5 Rc5 24.Rd4 Nc4! 25.Nc3 Ne3!-+ 26.fe3 Rc3 27.Rd7 Bc8 28.Ra7 Be6 29.a4 Re3 30.Bb5 Rc3 31.Kf2 e3 32.Kg3 Bc4 33.Rc7?? e2 34.Kf2 Rc1 (34...Rc1 35.Re7 Rf1 36.Kg3 Bb5 37.ab5 e1Q 38.Re1 Re1-+) 0–1. Djurkovic,Maks (2155) – Tratar,M (2450), TCh–SLO, Celje SLO, 2003. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.c4 e5)

9.e4 c5=.

9.Nd4 Nbc6 10.Nd5 Nd4 11.ed4 (11.Qd4? Nf3 12.gf3 Bd4 13.Bd4 f6-+) 11...Ng4 12.Be2 c6 13.Bg4 Bg4 14.Qg4 cd5 15.cd5 Re8 16.Kf1 Qb6 17.a3 Qb5 18.Kg1 Rac8 19.Rf1? (better is 19.Rd1–/+) 19...Rc2-+ (19...Qd5?! 20.h4–/+) 20.a4 Qb4 (20...Qd5?! 21.Ba1-+; 20...Qa4?! 21.Bc1-+) 21.Ba1 Re1 (21...Qa4?! 22.h3-+) 22.g3 Rf1 23.Kf1 Rc1 (23...Qa4?! 24.Kg2-+) 24.Kg2 Rh1 25.Qc8 Bf8 26.Kh1 Qb1 27.Kg2 Qa1 28.Qc4 Kg7 29.h4 h5 30.Qb4 b6 31.Qc4 Qe1 32.Qc2 Qb4 33.Qe4 (33.Kf3 Qd4 34.Qc6 Qd3 35.Kg2 Kf6-+) 33...Qa4 34.g4 Qd7 35.f3 (35.gh5 gh5 36.Qf3 Kg6-+) 35...Qe7 36.Qd3 (36.gh5 gh5 37.Kf2 Qf6-+) 36...Qh4 37.Qe2 hg4 38.fg4 Be7 39.Qe4 f5! 40.Qe6 Qg4 41.Kf1 Qf4 42.Kg1 Qd4 43.Kf1 Qf4 44.Kg1 Qg3 45.Kh1 Qh4 46.Kg1 f4 47.Kg2 Qg3 48.Kh1 Qe3 49.Qd7 f3 50.Qh3 Qe1 51.Kh2 Qf2 52.Kh1 Qg2! (52...Qg2 53.Qg2 fg2 54.Kg2 a5-+) 0–1. Ramos Moreno,F (2130) – Naranjo Moreno,A (2290), XIII Open, Malaga ESP, 2010.

9.Be2 a5 10.b5=.

9.Be2 Nbd7 10.0-0 Nf3 11.Bf3 Ne5 12.Be2 Be6 13.Ne4 (13.Qb3 c6=) 13...Nf3 (13...Qh4 14.Qc2=) 14.Bf3 Bb2 15.Rb1 Bg7 (15...Be5 16.Qd3=) 16.Qc2 (16.Qd3 Qh4=) 16...c6 (16...Qh4!?=) 17.Rfd1+= Be5 18.g3 (18.Nd6 Bd6 19.c5 Bh2 20.Kh2 Qh4 21.Kg1 Rad8+=) 18...Qc7 (18...Qe7 19.b5=) 19.Bg2 d5 (19...Bg4 20.f3 Bf5 21.Qd3=) 20.cd5+= Bd5 21.Nc5 (21.f4 Be4 22.Be4 f5 23.Qc4 Kh8 24.fe5 fe4+=) 21...Bg2 (21...Rad8 22.Bd5 Rd5 23.Rd5 cd5 24.Rc1=) 22.Kg2 (22.Rd7 Qc8 23.Kg2 b6-/+) ½-½. Nilsson,Nils Roland - Johansson,Kjell, corr SSKK 2-776, 1993. (=1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 g6 5.Nf3 Bg7 6.d4 0-0 7.de5 Nfd7 8.Nc3 Ne5)

9.Be2 Be6 10.Ne5 Be5 11.0-0 Nc6 12.Qb3 f5 13.f4 Bg7 14.Bf3 Qd7 15.Nd5 Rae8 16.a4 Nd8 17.Bg7 Qg7 18.b5 c6 19.Nb4 Qf7 20.Rac1 Bd7 21.Rfd1 Re6 22.Rd3 Rfe8 23.Rcd1 Qe7 24.c5 d5 25.Bd5 cd5 26.Nd5 Qf7 27.Nc7 R8e7 28.Ne6 Ne6 29.Qd5 Be8 30.c6 bc6 31.bc6 Nc7 32.Qf7 Kf7 33.Rd6 Re3= 34.Rd7 Re7 35.R7d6 Ne6 36.Rc1? Rc7-+ 37.g3 Ke7 38.Rd5 Bc6 39.Ra5 Nd4 40.Re5 Kf6 41.Kf2 Rd7 42.Rc4 Be4 43.Rec5 Nf3 44.Rc6 Ke7 45.Rc7 Nh2 46.Rd7 Kd7 47.Ke3 Bc6 48.a5 Ng4 49.Kd4 Kd6 50.Rc2 Nf6 51.Rh2 h5 52.Ra2 Ne4 53.Ra3 Bd5 54.Re3 Nc5 55.Ra3 Nb3 (55...Nb3 56.Kd3 Kc5-+) 0–1. Hatfield,E – Dubisch,Ralph (2270), NWC November op, 1989. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Be2 Nf3 10.Bf3 Nc6 11.Qb3 a5 12.a3 Ne5 13.Be2 Be6 14.0-0 a4 15.Qa2 (worse is 15.Na4 b5 16.Nc3 Nc4–/+) 15...Qh4 Will c4 fall? 16.Nd5 c6 17.Nf4 Bf5 18.Rad1 Rad8 19.Rd2 Rfe8 20.Qa1 Bg4 21.Bg4 Qg4 22.h3 Qg5 23.Rc2 Qf5 24.Qd1 Qe4 25.Qe2 Bh6 26.Rd1 Bg7 27.Rd4 Qf5 28.Rd1 h5 29.Rcd2 Kh7 30.Rd4 Rd7 31.R1d2 c5 32.bc5 (32.Rd6?! Rd6 33.Rd6 cb4 34.ab4 Nc4 35.Qc4 Bb2+=) 32...dc5 33.Rd7 Nd7 34.Bg7 Kg7 35.Nd5 Ne5 36.Nc3 b6 37.Nd5 (better is 37.Rd6!? Re6 38.Rd5+/-) 37...Qb1= 38.Kh2 Qb3 39.Rb2 Qa3 40.Nb6 (worse is 40.Rb6 Qc1–/+) 40...Rd8 41.Qc2 Rd1 42.Na4 (worse is 42.Qd1 Qb2 43.Na4 Qf2 44.Nc5 Qe3–/+) 42...Qa1 43.Qc3 (43.Nc5 Rh1 44.Kg3 g5 45.Ne6 fe6 46.Rb7 Kf6 47.Rf7 Nf7 48.Qe4 Ne5 49.Qf3 Nf3 50.Kf3 Qf1 51.g3 Rh2 52.Ke4 Qc4 53.Kf3 g4 54.hg4 hg4) 43...h4 44.Qe5 Kh7 45.g3 Rh1? (45...hg3 46.Kg3 Rg1 47.Kf4 g5 48.Ke4 Qa4 49.Qf5 Kg7 50.Qc5 Kh7 51.Qf5 Kg7+-) 46.Kg2+- hg3 47.Qd5 (47.Nc5?? Rg1 48.Kf3 gf2-+) 47...Rg1 48.Kf3 Kg7 (48...Kg8 49.Qd8 Kg7 50.Rb8 Qd1 51.Qd1 Rd1 52.fg3+-) 49.Qe5 Kh7 50.Qf6 Qd1 51.Kf4 (51.Ke4!? Qd7 52.Nc5 Qf5 53.Qf5 gf5 54.Kf4 gf2 55.Rf2 Rc1 56.Kf5 Rc4+-) 51...Qd7 52.Nc5 Qc7 53.Qe5 gf2 54.Rf2 (54.Qc7?! f1Q 55.Ke5 Qf5 56.Kd4 Qf6 57.Kd3 Qb2 58.Qf7 Qg7 59.Qg7 Kg7=) 54...Qd8 55.Ne4 Kh6 56.Qf6 (better is 56.Nd6 Qh4 57.Kf3+-) 56...Qb8 (56...Qf6 57.Nf6 Rc1 58.Kg3+-) 57.Kf3 (better is 57.Nd6 Kh5 58.c5+-) 57...Kh5 (57...Qc8 58.Qf7 Qf5 59.Qf5 gf5 60.Nd6+-) 58.Qf7 (58.Qg7 Qg3 59.Ng3 Rg3 60.Kg3 f5 61.Kf4 Kh4 62.Qh7) 58...Qh8 (58...Kh6 59.Rd2 Rb1 60.Rd7 Rf1 61.Nf2 Rf2 62.Kf2 Qh2 63.Ke1 Qg1 64.Ke2 Qh2 65.Kd3 Qe5 66.Qf8 Kh5 67.Rh7 Kg5 68.Qh6 Kf6 69.Qh4 Qg5 70.Qd4 Qe5 71.Qd8 Ke6 72.Qe7 Kf5 73.Rf7 Qf6 74.Qf6) 59.Ke2 (better is 59.c5 Kh6 60.Qf4 Kh7+-) 59...Qb2 60.Kf3 Qh8 61.c5 Kh6 62.Qf4 g5 63.Qf6 (63.Qf6 Qf6 64.Nf6+-) 1–0. Khismatullin,D (2645) – Babujian,L (2455), 8th Asrian Memorial, 2015. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b4 0-0 5.e3 d6 6.Bb2 e5 7.de5 Nfd7 8.Nc3 Ne5)

9.Ne5 de5 10.Be2 c6 11.0-0 Qe7 12.Qb3 Be6 13.b5 Rc8 14.Ba3 Qh4 15.g3 Qh6 16.Ne4 Nd7 17.Rfd1 cb5 18.Qb5 a6 19.Qa5 b6 (19...Bc4 20.Bc4 Rc4 21.Rd7 Re4 22.Rad1+- (22.Rb7?! Rc4+-)) 20.Qd2 f5 (20...Bc4? 21.Bc4 Rc4 22.Qd7+-) 21.Nc3 e4 22.Nd5 Ne5 (better is 22...Ba1!? 23.Ne7 Kf7 24.Nc8 Rc8 25.Ra1 Rc6=) 23.Ne7 Kf7 24.Nc8 Rc8 25.Bb2 Nf3 26.Bf3 ef3 27.h4 Bf8 (27...Rc4!? 28.Bg7 Qg7+-) 28.Qd4+- Be7 29.Qb6 Rc4 30.Rd4 (30.Qa6 Qh5 31.Rac1 Rg4+-) 30...Rc2 (30...Rd4 31.Bd4 g5 32.Qa6 gh4+-) 31.Qb7 Rb2?! (31...Qf8 32.Ba3 a5+-) 32.Qb2 g5 (32...Qh5 33.Qb7+-) 33.Qb7 Qh5 (33...g4 34.Rc1+-) 34.Rc1 gh4 (34...Qg6 35.Rc7 Qf6 36.hg5 Qg5+-) 35.Rh4 (35.Rh4 Qg6 36.Rc7+-) 1–0. Mikhalchishin,A (2550) – Popovych,O (2270), 2nd Popel mem, Lviv UKR, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Ne5 Be5 10.Be2 a5 11.a3 Nc6 12.Qb3 (12.b5!? Na7 13.Qa4+=) 12...ab4= 13.ab4 Ra1 14.Ba1 Qh4 15.g3 Qh3 16.Bf1 Qf5 17.Bg2 Qd3 (17...Be6!?=) 18.Be4+= Bc3 19.Qc3 Qc3 20.Bc3 Re8 21.Bc2 Be6 22.c5 dc5 23.bc5 Bc4 24.h4 Ne5 25.h5 Nd3 26.Bd3 Bd3 27.hg6 fg6 28.Kd2 Be4 29.Rh4 Bf3 30.Rf4 Rd8 31.Bd4 Bc6 32.Rg4 (32.f3 Bb5+=) 32...Rf8 (32...Bf3!? 33.Rg5 Kf7=) 33.e4+= Ra8 34.Ke3 Ra3 35.Kf4 Kf7 36.Rh4 h5 37.Be3 Kf6 38.e5 Ke6 39.Kg5 Be8 40.Rb4 Ra7 41.Bd4 Kd5 42.c6 (42.f4 Ra3 43.Bf2 Ra2 44.Rd4 Ke6+=) 42...b6 43.Kf6 Kc6 44.e6 Ra8 45.e7 Kb7 46.Be5 (46.Rb2 Ra5 47.Be5 Rd5+=) 46...c5= 47.Rb1 c4 48.Rd1 b5 49.Rd8 b4 50.Bd6 (50.f4!?=) 50...b3=+ 51.Ra8 Ka8 52.Be5 Kb7 53.Kg7 Kc6 54.Kf8 Bd7 55.f4 Kd5 56.Kg7 g5! 57.f5 (57.fg5 Ke5 Deflection) 57...Ke5 58.f6 b2 ½-½. Yakubboev,Nodirbek (2585) - Akash,G (2400), 18th Asian Continental, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Ne5 Be5 10.Be2 a5 11.a3 Nd7 12.0-0 Nb6 13.Rb1 (13.Na4 Na4 14.Be5 ab4=) 13...ab4 14.ab4 Be6 15.Nd5 Na4 (15...Bd5!? 16.cd5 Ra2=) 16.Be5+= de5 17.Ra1 ½–½. Almeida Quintana,Omar – Strikovic,Aleksa, IRT Open, 2019. (=1.d4 d6 2.Nf3 Nf6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.c4 e5 7.de5 Nfd7 8.Nc3 Ne5)

9.Ne5 Be5 10.Be2 a5 11.b5 Nd7 12.Na4 Qh4 13.g3 Qf6 14.Be5 Ne5 15.Rc1 Bh3 16.f4 Nd7 17.Bg4 Bg4+= 18.Qg4 Qe7 19.Qf3 Rfe8 20.Kf2 Nf6 21.Rhe1 Ne4 22.Kg2 Qf6 23.Red1 Re6 24.Rd4 Rae8 25.Nc3 Nc5 26.Nd5 Qg7 27.Re1 f5 28.g4 fg4 29.Qg4 c6 30.bc6 bc6 31.f5 Re4 32.Re4 Re4 33.Qd1? cd5 34.Qd5 Qf7 35.Qd6 Qf5 36.Qd8 Kg7 37.h3 Ne6 (37...Ne6 38.Qe7 Kh6-+) 0–1. Doncea,V (2200) – Pedersen,C (2270), EYb18, Budva, 2003. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b4 d6 5.Bb2 0-0 6.e3 e5)

9.Ne5 Be5 10.Be2 Nc6 11.Qb3 Be6 12.0-0 a5 13.b5 Nb8 14.f4 Bg7 15.e4 Nd7 16.f5 Nc5 17.Qc2 Bd7 18.f6 Bh6 (18...Bf6? 19.Rf6 Qf6 20.Nd5+-) 19.Nd5 Re8 20.Ne7 Re7 21.fe7 Qe7 22.Qc3 f6 23.Bd3 (worse is 23.Rf6 Bg7 24.e5 Na4=) 23...Bg7 24.Bc2 b6 25.Rf2 (worse is 25.Rf6 Bf6 26.Qf6 Qf6 27.Bf6 Be6+=) 25...Rf8 (25...Ne4? 26.Re1 f5 27.Be4 fe4 28.Re4+-) 26.Raf1 Bc8 27.Rf4 Rf7 28.Qe1 Be6 29.Qe2 Nd7 30.Bb3 Rf8 31.Bd4 Kh8 32.h4 Bf7 33.Qb2 Ne5 34.Qc3 Be6 35.c5 bc5 36.Be5 de5 37.R4f3 c4+= 38.Ba4 f5 39.h5 f4 40.h6 Qc5 41.Kh2 Bh6 42.Rd1? Bg7 43.Qa5–/+ g5 44.Qa6? Qe7?? 45.Rc3 g4 46.g3 Qc5 47.Rd2 Rf6 48.Rd8 Bf8 49.Rf8 Rf8 50.Qe6 Qf2 51.Kh1 Qf1 52.Kh2 fg3 (52...fg3 53.Rg3 Rf2 54.Rg2 Qg2) 0–1. Krnic,Zdenko (2420) – Van Delft,Merijn (2315), Hoogovens op–C, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Nfd7 8.Nc3 Ne5)

9.Qb3 Nde5 10.Nbd2 Be6 11.e4 b5 12.Ne5 de5 13.Qc3 Nd4 14.cb5 Qd7 15.a4 a6 16.ba6 Ne2 17.Ke2 Ra6 18.b5 Ra4 19.Ra4 Qb5 20.Rc4 Bh6 (better is 20...Rd8 21.Ke1 Rd2 22.Kd2 Bc4+=) 21.Qb4?? (better is 21.Qd3 Qb2 22.Rc7+/-) 21...Bc4–/+ 22.Qc4 Qb2 23.Qd3 Bg5 24.Rb1 Qa2 25.Rc1 (25.Rb5 Rd8 26.Rd5-+) 25...Rd8 26.Rc2 Qa5 (better is 26...Qa4 27.Qc3 Bd2 28.Rd2 Qe4 29.Kf1 Rd2 30.Qd2 c5-+) 27.Nb3–/+ Qa4 28.Qc4?? (better is 28.Nc5 Qa1 29.Nd7–/+) 28...Qd7-+ 29.f3 Qd1 30.Kf2 Qh1 (better is 30...Rd3 31.Re2 Rb3-+) 31.Qf1 Qh2 32.Rc7 h5 33.Rc3 (better is 33.Ke2!?–/+) 33...h4-+ 34.Ke1?? (34.Qg1 Qg3 35.Ke2-+) 34...h3 35.Rc2 Bh4 (35...Bh4 36.Rf2 hg2 37.Qd3 g1Q 38.Kd2 Qgf2 39.Kc3 Rd3 40.Kc4 Qc2 41.Kb5 Qb3 42.Kc5 Qhc2#) 0–1. Petersen,Nils – Antonsen,Mikkel, Copenhagen, 1997. (=1.c4 g6 2.Nf3 Nf6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Qb3 Nde5 10.Ne5 de5 11.Nc3 Be6 12.0-0 f5 13.Rad1 Qe8 14.Nd5 Qf7 15.b5 Nb8 16.f4 c6 17.fe5 (worse is 17.Be5 cd5 18.cd5 Bd7=) 17...Nd7 18.Ba3 Rfe8 19.Nc7 Ne5 20.Na8 cb5 21.Qb5 Ra8 22.Rd4 Nc6 23.Rd2 h5 (23...a6!? 24.Qa4 Ne5+/-) 24.Bb2+- Bh6 25.Qb3 Kh7 26.Qc3 Re8 27.Rc2 Bd7 28.Bc1 Ne5 (28...Qe6!?+/-) 29.e4!+- f4 30.c5 Bc6 31.Bc4 Qc7? 32.Bd5+- g5 33.Qh3 Rf8 34.Qe6 Bg7 35.Bc6 Nc6 36.Bb2 Nd4 37.Bd4 Bd4 38.Kh1 Qg7 39.Rd2 (39.Rd2 Kh8 40.Rb1+-) 1–0. Krnic,Zdenko (2380) – Nemet,Ivan (2460), YUG–ch35 Skender Vakuf, 1980. (=1.Nf3 Nf6 2.c4 d6 3.d4 g6 4.b4 Bg7 5.Bb2 0-0 6.e3 e5)

9.Nc3 Na6 10.a3+=.

9.Nc3 c6 10.0-0+= Re8 (10...Qe7 11.Qb3+=) 11.Ne4+/- Bf8 (11...a5 12.a3+/-) 12.a3 (12.Ne5 Bg7 13.Nf7 Kf7 14.Nd6 Kg8 15.Bg7 Kg7 16.Qd4 Nf6+/-) 12...Qc7 13.c5 b5 (13...b6 14.Nd6 Re7 15.Bc4+=) 14.Qb3 h6 15.Nh4 Kg7 16.f4 f5 (better is 16...a5 17.fe5 Ne5+-) 17.Ng6?? (17.Ng3 Nf6 18.fe5 Re5 19.e4+- (19.Be5?! Qe5 20.Nf3 Qe6+-)) 17...fe4= 18.Ne5 (18.Bh5 Nf6 19.Be5 Re5 20.fe5 Nh5 21.Nf8 Qe7+-) 18...Nf6 (worse is 18...Ne5 19.Be5 Re5 20.fe5+/-) 19.g4 (19.a4 ba4 20.Qa4 Be6=) 19...Be6 20.Qc2 Kg8 21.g5 Qg7 22.Kf2 hg5= 23.Rg1 Qh7 24.Rg5= Bg7 25.Rag1 Qh2?? 26.Ke1+- Re7? 27.R5g2 Qh4= 28.Kd1 a5 29.Kc1 ab4?? 30.Ng6+- ba3 31.Ne7 Kh7 32.Rg7 Kh6 33.R1g6# 1–0. Bott,Hans Joachim – Bieringer,Matthias, Baden–ch HT1, 1994.

9.c5 Nc6 10.b5 Na5 (10...Ncb8!?=) 11.c6+/- Nc5 12.Qd8 (12.Ne5?! Qd1 13.Kd1 bc6=) 12...Rd8 13.Be5 (worse is 13.Ne5 bc6 14.a4 a6=) 13...bc6 14.Bc7 Nd3 15.Bd3 (15.Kf1 Rd7 16.Ba5 Ba1 17.bc6 Rd5=) 15...Rd3+= 16.Be5 (16.Ke2 Rd5 17.Na3 Bb2+=) 16...cb5= 17.Bg7 Kg7 18.Ke2 Rd8 19.Nbd2 Be6 20.Rhc1 a6 21.Nd4 Bd5 22.g3 Nc4 23.Nc4 Bc4 24.Ke1 Rac8 25.a4 (25.Rc2 g5=) 25...ba4 (25...b4 26.Rab1 a5 27.f3+=) 26.Ra4= ½–½. Krishna,CRG (2315) – Mchedlishvili,Mikheil (2635), Kolkata IND, 2014. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b4 0-0 5.e3 d6 6.Bb2 e5 7.de5 Nfd7 8.Be2 de5)

9.Nbd2 e4 10.Nd4 Qe7 (10...c5 11.bc5 Nc5 12.Qb1= Qe7 13.N4b3 Nbd7 14.Bg7 Kg7 15.Qb2 Kg8 16.0-0= –0.03; 10...Re8 11.c5 (11.Qb1 Na6 12.b5 Nac5 13.0-0 Na4 14.Rd1 Qh4 15.Qc2 Nb2 16.Qb2+= –0.56; 11.Qc2 Na6 12.a3 c5 13.Nb5 Nf6 14.Bc3 Qe7 15.0-0 Bd7 16.Rad1= 0.09; 11.0-0 c5 12.bc5 Nc5 13.Rb1 Qg5 14.Kh1 Nba6 15.Nb5 Bb2 16.Rb2= –0.19; 11.a3 c5 12.bc5 Nc5 13.0-0 Qg5 14.Kh1 Nba6 15.Rb1 Bd7 16.Nb5= –0.09) 11...Qg5 12.0-0 Nc6 13.a3 a5 14.Nc4 Nde5 15.Kh1 ab4 16.Nc6= 0.19) 11.Qb3 (11.c5 a5 12.Qa4 Rd8= 13.0-0 Nf6 14.N2b3 Nd5 15.b5 Qg5 16.Kh1= 0.22; 11.Qc2 c5 12.bc5 Nc5 13.0-0 Rd8 14.N4b3 Bb2 15.Qb2 Nbd7 16.Rfd1= 0.03) 11...a5 (11...Rd8 12.Rd1 c5 13.Nc2 Bb2 14.Qb2 cb4 15.Nb4 Nf6 16.0-0= 0.22) 12.a3 (12.b5 c5 13.bc6 bc6 14.Rd1 Rd8 15.0-0 a4 16.Qa3= 0.19) 12...ab4 13.ab4 (13.Qb4? c5 14.Qb3 cd4 15.ed4 Nc6-+) 13...Ra1 14.Ba1 c5 15.bc5 Nc5 16.Qb1 (16.Qb5+= –0.34) 16...f5 (16...Qg5 17.Bf1+= (17.Ne4? Ne4 18.0-0 Nd2-+)) 17.0-0= f4 18.ef4 e3 (18...Rf4 19.Nc2=) 19.N2b3 Rf4 20.g3 (20.Nc5 ef2 21.Rf2 Rf2 22.Kf2 Qh4 23.Kf1 Bd4 24.Bd4 Qd4=) 20...Rf8 (20...ef2 21.Rf2 Rf2 22.Kf2+=) 21.Nc5= ef2 22.Rf2 Rf2 (22...Qc5 23.Rf8 Kf8 24.Qf1 Kg8 25.Qf2–/+) 23.Kf2 Qc5 24.Qe4 Nc6 25.Qe8 Qf8 26.Qf8 Kf8 27.Ke3 Ne5 28.Nb3 Be6 29.Nc5 Nc4= 30.Bc4 Bc4 31.Bg7 Kg7 32.Nb7 Bd5 33.Nc5 Kf6 34.Kf4 ½–½. Doncea,V (2200) – Zufic,M (2395), 25th Open, Oberwart AUT, 2003. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b4 d6 5.Bb2 0-0 6.e3 e5)

9.Nc3 Nbc6=.

9.Ne5 de5 10.0-0 Qe7 11.Qb3 Bf5 12.Nc3 c6 13.Rad1 e4 14.Na4 Nd7 15.Bg7 Kg7 16.Rd4 Qg5 17.Kh1 Rfe8 18.Qb2 Kg8 19.Qd2 Re7 20.Rd1 Rae8 21.c5 Nf6 22.Nb2 Ng4 23.Bg4 Bg4 24.Rc1 Qh4 25.Nc4 Re6 26.Nd6 R8e7 27.Nc8 (better is 27.Rcc4!? f5 28.a4+/-) 27...Re8= 28.Nd6 (worse is 28.Na7 Ra8 29.Nc6 bc6–/+) 28...R8e7 29.Nc8 (better is 29.Rcc4!? f5 30.a4+/-) 29...Re8= 30.Nd6 (worse is 30.Na7 Ra8 31.Nc6 bc6–/+ (31...Rc6?! 32.Re4 Qg5 33.b5=)) 30...R8e7 31.a4 Re5 32.Qe1 Rh5 33.Qg1 f5 34.b5 Rg5 35.bc6 (35.Qf1 h6+/-) 35...bc6 (better is 35...Bf3!? 36.cb7 Rb7 37.gf3 Rg1 38.Rg1 Rb2-+) 36.Qf1+/- Qh5?? (better is 36...Kg7 37.h3 Qh5+/-) 37.Qc4+- Kf8 (37...Kg7 38.Ne8!! Kh6+-) 38.Rb1 Qh4 39.Rb8 Kg7 40.Qg8 Kh6 41.Qf8 Kh5 42.Qe7 h6 43.Nf7 Bf3 44.Qg5! (44.Qg5 Qg5 45.Ng5 Bg2 46.Kg2 Kg5 47.Rd6+-; 44.gf3?! Rg1 45.Kg1 Qe7 46.Nh6 Kh6+-; worse is 44.Ng5 Be2+-) 1–0. Saric,Ante (2075) – Novak,Danijel (2365), CRO–ch op Pula, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Nfd7)

8.Ne5? Qd1 9.Kd1 Ng4-+.

9.Nc3 Nc6 10.a3 e4 11.Nd2 a5 12.b5 Ne5 13.Nde4 Ne4 14.Ne4 Bf5 15.Ng3 Nf3 16.gf3? (better is 16.Ke2 Bb2 17.Ra2=) 16...Bb2-+ 17.Ra2?? (better is 17.Rd1 Rd1 18.Kd1 Rd8 19.Ke2-+) 17…Bc3 (17...Bc3 18.Ke2 Be6-+) 0–1. Rush,Bradley – Ustimenko,Aleksandr, OP–2012–0-02117, 2012.

9.Be5 c6 10.Nbd2 Nbd7 11.Bb2 Nf8 (11...c5 12.a3+/-) 12.Be2 Bf5 13.Rc1 Bd3 (13...a5 14.b5+/-) 14.Nd4 (14.Bd3 Rd3 15.Ke2 Rdd8+/-) 14...Be2 15.Ke2 (15.Ne2?! Rd2 16.Kd2 Ne4 17.Kc2 Bb2 18.Kb2 Nf2=) 15...Ng4 16.N2f3 (16.N2b3 h6+-) 16...Ne5 (16...a5 17.h3 Nf2 18.Kf2 ab4 19.Ra1+=) 17.Rc2 Rd7 18.Ne5 Be5 19.Nf3 Bb2 20.Rb2 Rad8 21.a4 b6 (21...Ne6 22.Rd2+/-) 22.c5 (22.Nd4 Rc7+-) 22...bc5+/- 23.bc5 (23.Ne5 Rb7 24.Rhb1 f6 25.Nc6 Rd6+-) 23...Ne6 (23...Rd5 24.Rc1 Ne6 25.Rb7+=) 24.Rc1 (24.Ne5 Rc7 25.Rc1 Rd5+/-) 24...Rd5 25.Rb7 a5 (25...Ra8 26.Rb4+/-) 26.Rb6 (26.Ra7 Nc5 27.Nd4 Na4 28.Nc6 Rd2 29.Ke1 R8d6+/-) 26...Rc5 (26...Rc8 27.Ra6 Nc5 28.Ra7= (worse 28.Ra5 Nd3 29.Rc6 Nf4 30.ef4 Re8 31.Ne5 Ra5=+)) 27.Rc5 (27.Rc6!? Rdd5 28.Nd2+/-) 27...Nc5+= 28.Rc6 Na4 29.Nd4 Rb8 30.Ra6 Rb2 (30...Nc3 31.Kd3 Nd1 32.f4=) 31.Kf3+= Nc3 (31...Nc5 32.Ra5 Nd3 33.g4+=) 32.Ra5 Nd1 (32...f5 33.Ra8 Kf7 34.Rc8+/-) 33.Ne2 Kg7 34.g4 h6 35.h4 Kh7 (35...Rb1 36.g5+-) 36.Rd5 Rb1 (36...Re2 37.Rd1 Rc2 38.Rd7+-) 37.Rd7+- Kg7 38.Ng3 Ra1 (38...Nc3 39.h5 Rd1 40.Rd1 Nd1 41.e4+-) 39.Kg2 (better 39.Ne4!? Nb2 40.Nd6 Kf6 41.Nf7 Nc4+-) 39...Nc3+/- 40.Rd4 Nb5 41.Rb4 Nd6 42.f4 Ra2 43.Kf3 Ne8 44.g5 h5 (44...Nd6 45.Rd4 Nb5 46.Rd7 hg5 47.hg5+-) 45.Ne4 (45.f5 Kf8+-) 45...Ra6 (45...Kf8 46.Rb7+-) 46.Rb7 (46.Rb8 Re6+-) 46...Re6 (46...Nd6 47.Nc5 Ra3 48.Ne6 Kh7 49.Rd7+-) 47.Nc5 Rc6 48.Nb3 Re6 (48...Nd6 49.Nd4 Rc8 50.Rd7+-) 49.Nd4 Rd6 (49...Ra6 50.f5+-) 50.f5 Ra6 (50...Kf8 51.fg6 fg6 52.Kf4+-) 51.f6 (51.fg6 Rg6 52.Ne2 Nd6+-) 51...Kf8 52.Rb8 1-0. zembelek (2045) - Tsu (2005), Rated Blitz game, lichess.org, 2014. (=1.b4 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...e5 2.Bb2 d6 3.e3 Nf6 4.Nf3 g6 5.c4 Bg7 6.d4 0-0)

9.Ne5 Ng4 10.Nd3 Bb2 (10...Bf5 11.Bg7 Kg7 12.Nb2+/-) 11.Nb2+/- Nc6 12.a3 Bf5 13.h3 Nge5 (13...Nf6 14.Nc3+/-) 14.Nc3+- Be6 15.Be2 f5 (15...a5 16.b5 Ne7 17.f4+/-) 16.f4+- Nf7 17.Nca4 (17.Bf3 Rd7+-) 17...Rd6 (17...Nd6 18.Nc5 Re8 19.Bf3+/-) 18.Nc5+- b6? (better 18...Ncd8+-) 19.Nb7 (19.Ne6?! Re6 20.Kf2 Nd6+/-) 19...Rd7 20.Bf3 Ncd8 21.Nc5 bc5 22.Ba8 c6 23.Na4 (23.bc5?! Rc7+/-) 23...Rc7 (23...cb4 24.Nc5 Re7 25.ab4 Bc4 26.Kf2+-) 24.Nc5 Rc8 (24...Bc4 25.Kf2+-) 25.Ne6 Ra8 (25...Ne6 26.Bb7 Rc7 27.Ba6+-) 26.Nd8 Nd8 27.Ke2 Kf7 28.Rhd1 Ke7 29.Rd3 Nf7 30.Rad1 a5 (30...Rd8 31.g4+-) 31.Rd7 Ke6 32.b5 (32.Rc7!? Ra6 33.c5 ab4 34.ab4 Ra2 35.Kf3 Ra8+-) 32...cb5 33.cb5 Rc8 (33...Rb8 34.a4+-) 34.b6 (34.Ra7 Rc2 35.Kf3 a4+-) 34...Rc6 (34...Rb8 35.b7+-) 35.b7 Rb6 36.Rc7 Nd6 (36...Rb2 37.Rd2 Rb1 38.Rdd7+-) 37.Rh7 (better 37.Rc6! Rb7 38.Rcd6 Ke7+-) 37...Nb7 38.Rdd7 (38.g4 Nd6+-) 38...Nc5 (38...Rb2 39.Rd2 Rb6 40.g4+-) 39.Rhe7 Kf6 40.Rf7 (40.Rf7 Ke6 41.Rde7 Kd6 42.Rf6 Ke7 43.Rb6+-) 1-0. ClayPigeons (2140) - deeplooking (2200), Rated Blitz game, lichess.org, 2021.

9.Ne5 Ng4 10.f4?? Ne5 (10...Ne3 11.Na3-/+) 11.fe5 Nc6 12.a3 a5 13.b5 Ne5 14.Nc3 Be6 15.Be2 (better 15.Na4!?-/+) 15...Bc4 16.Rd1 (16.Nd1 Nd3 17.Bd3 Rd3 18.Bg7 Kg7-+) 16...Be2 17.Ke2 Nc4 18.Ba1 Re8 19.Rd7?! (19.Rc1 Na3 20.Nd5 Nb5 21.Nc7 Nc7 22.Rc7-+) 19...Re3 20.Kf2 Rae8 (better 20...Bc3 21.Rc7 Ba1 22.Ra1 Ra3 23.Ra3 Na3 24.Rb7-+) 21.Nd5 Re2 22.Kg3 Ba1 (22...c6!? 23.Bg7 Kg7 24.Rf1-+) 23.Ra1 Kg7 24.Rf1 Ne5 25.Rc7 Rd2 26.Nf4 Rd7 27.Rd7 Nd7 28.Rc1 Re3 29.Kf2 Ra3 30.Rc7 Ne5 31.Rb7 Ra2 32.Kg3 Rb2 33.b6 Nc4 34.Ne6 Kf6 35.Nf8 h5 36.Nd7 Kg7 37.h4 Nd6 38.Ra7 Rb3 39.Kh2 Rb4 (39...Nc8 40.Ra6-/+) 40.Nc5 (better 40.Ra5 Rh4 41.Kg3=) 40...Rb6-/+ 41.Ra5 Rb4 42.Ra7 (better 42.Kh3!?-/+) 42...Rh4-+ 43.Kg3 Rg4 44.Kf3 Nf5 45.Ne6 Kf6 46.Nf4 (46.Nd8 Nh4 47.Ke3 Ng2 48.Kf3 g5 49.Rf7 Kg6-+) 46...Rg3 (46...Nh4!? 47.Ke3 Ng2 48.Ng2 Rg2 49.Kf3-+) 47.Ke4?! (47.Kf2 Rb3-+) 47...Re3 (47...Kg5!? 48.Nh3 Kh4 49.Nf4-+) 48.Kd5 Ne7 (48...Re5!? 49.Kc6-+) 49.Kd4 Rg3 50.Ra6? (50.Ke4 h4-+) 50...Kg7 (better 50...Kf5 51.Ne2 Rg2-+) 51.Ke4 Nf5 52.Ra7 h4 53.Ne6 (53.Ra6-+) 53...Kf6 54.Nd8 (54.Nf4 Re3 55.Kd5 Re5 56.Kc6 Nd4 57.Kb7 Re7 58.Kb6 Ra7 59.Ka7-+) 54...Re3 55.Kf4 (55.Kd5 Rd3 56.Ke4 Rd8 57.Ra4-+) 55...Nh6 (better 55...g5 56.Kg4 Kg6 57.Ra6 f6 58.Rf6 Kf6 59.Nf7 Rg3 60.Kh5 Ng7 61.Kh6 Kf7 62.Kh7 h3 63.Kh6 hg2 64.Kh7 Rh3) 56.Ra6 (better 56.Ke3 g5 57.Ra6 Kg7 58.Ke4+-) 56...Re6=+ 57.Ne6 fe6 58.Kf3 g5 59.Kf2 g4 60.Ra4 Kg5 61.Ra8 Nf5 Black prepares g3 62.Re8 g3 63.Kg1 (63.Kf3!?=+) 63...Kf6-/+ 64.Kf1 Ne3 65.Kg1 e5 66.Rh8 Kg5 67.Re8 Kf4 68.Rf8 Nf5 69.Kf1 e4 70.Ke2 Kg4 (70...e3 71.Rh8 h3 72.Rh3 Ke4=) 71.Rg8 Kf4 Black prepares the advance e3 72.Rh8 e3 73.Ra8 Nd4 74.Kd3 Nf5 75.Ra4 Kg5 76.Ke4 (76.Ke2 Kf6=) 76...h3 (76...e2 77.Ra1 Kg4=) 77.gh3= g2 78.Ra1 e2 79.Kf3 Nh4?? (better 79...Nd4 80.Kg2 Nc2=) 80.Ke2+- Kf4 (better 80...Ng6 81.Kf3 Nf4 82.h4 Kf5 83.Ra5 Kf6+-) 81.Ra3?? (better 81.Kf2+-) 81...g1Q-+ 82.Ra4 Kg5 (82...Ke5 83.Ra5 Kd4 84.Ra4 Kc3 85.Rh4 Qg2 86.Ke3 Qg3 87.Ke4 Qh4 88.Kd5 Qh3 89.Ke5 Qe3 90.Kf5 Kd4 91.Kf6 Qe5 92.Kf7 Qf5 93.Kg7 Ke5 94.Kg8 Qd7 95.Kf8 Kf6 96.Kg8 Qg7) 83.Ra5?? (better 83.Rg4 Qg4 84.hg4=) 83...Kh6 (83...Nf5 84.h4 Kg4 85.Rf5 Kf5 86.Kd3 Qg3 87.Kc4 Qh4 88.Kd5 Qe4 89.Kd6 Qb4 90.Kd5 Qd2 91.Kc4 Qe3 92.Kb4 Ke4 93.Kb5 Kd5 94.Kb4 Qd4 95.Kb3 Qd3 96.Kb4 Qc4 97.Ka3 Qb5 98.Ka2 Kd4 99.Ka3 Kc3 100.Ka2 Qb2) 84.Ra6 (84.Ra6 Kh7 85.Rf6-+). persianempire (2050) - labo525, Rated Blitz game, lichess.org, 2013.

8.Qc2 Nc6 9.a3 a5 10.ed6+/- Bf5 11.Qb3 Bb2 12.Qb2 ab4 13.dc7 Qc7 14.Be2 Bb1= 15.Qb1 Ra3 16.0-0 Rfa8 17.Qb2 (17.Ra3 ba3 18.Qb3 Qe7=) 17...Nce5+= 18.Ne5 Ne5 (18...Qe5!? 19.Qe5 Ne5+=) 19.Ra3= ba3 20.Qb3 Nd7 21.Ra1 Nc5 22.Qc2 Qa5 (22...Qb6 23.Bf3=) 23.Ra2 (23.Bf3 Qb4 24.Qa2 Qb2–/+) 23...Na6 (23...Qe1 24.Bf1+=) 24.Qb3 (24.Qc1 Nb4 25.Ra1 a2+=) 24...Nb4 25.Ra1 a2 26.Bd1?? Qe5-+ (26...Qe5 27.Ra2 Na2-+ (worse is 27...Ra2 28.Qb4 Ra1 29.Qd2-+)) 0–1. Pajkovic,V (2420) – Milovic,J (2310), TCh–MNE Premier League, Cetinje MNE, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

8.c5 de5 9.Qd8 Rd8 10.h3+/-.

8.c5 Ne5 9.Ne5 Be5 (9...de5 10.Nd2=) 10.Be5 de5 11.Nc3 Be6 (11...Nd7 12.Bb5=) 12.Qf3+= c6 13.Be2 (13.Rd1 Nd7=) 13...a5 14.b5 (14.Rd1 Qh4 15.a3 ab4=) 14...Qe7 15.0-0 (15.Ne4 cb5 16.Bb5 Rc8+=) 15...Qc5 16.Rac1 (16.Rfc1 Qe7=) 16...Qa3 (16...Rd8 17.Ne4 Qb4 18.Rfd1 Rd1 19.Rd1+=) 17.Rc2= Rd8 18.Qg3 (18.Rb1 Nd7+=) 18...Nd7+= 19.Rfc1 Qe7 (19...Rac8 20.Rd1+=) 20.bc6 (20.Bf3 cb5 21.Nb5 Qb4=) 20...bc6+= 21.Bf3 Nc5 (21...Ra6 22.Rb2+=) 22.Bc6= Rac8 23.Bf3 Nd3 24.Nd5 (24.Ra1 Rc5 25.Be4 Nb4-+) 24...Bd5 (24...Rd5?! 25.Rc8 Bc8 26.Rc8 Rd8 27.Qg4=) 25.Rc8 Nc1 26.Rc1 Ba2 27.h4 (27.Ra1 Rd2–/+) 27...a4 (27...e4 28.Bg4–/+) 28.Be4 (28.h5 e4 29.Be2 Bd5–/+) 28...Bb3-+ 29.h5 a3 (29...a3 30.hg6 hg6-+) 0–1. Klausner,Helmut – Johannes,Jan, corr ICCF TT–04–0045 A, 2004.

8.Be2 de5 9.h3 Nf6 10.Qd8 Rd8 11.Ne5+/-.

8.h3 Ne5 9.Ne5 Be5 10.Be5 de5 11.Qd8 Rd8 12.Nc3 Nc6 13.a3 Be6 14.Rd1 Rd1 15.Kd1 a5 16.b5 Rd8 17.Kc2 Nb8 18.Be2 Kf8 (18...Kg7 19.h4=) 19.Rd1 (19.Ne4 Bf5 20.Bf3 Nd7=) 19...Rd1 20.Nd1 Nd7 21.Nc3 Nc5 22.a4 (22.f4 ef4 23.ef4 Ke7=) 22...Ke7 23.f3 f5 24.Bf1 Kd6 25.e4 fe4 26.fe4 g5 27.g3 (27.Be2 c6-/+) 27...h5 28.h4 (28.Kd2!?-/+) 28...gh4 29.gh4 Bg4 30.Bd3 (30.Kd2 Nb3 31.Kd3 c6-/+) 30...Ne6 31.Ne2?? (31.Kd2 Nd4 32.Ke3 c6-+) 31...Kc5 (31...Be2 32.Be2 Nd4 33.Kd3 Ne2 34.Ke2-+) 32.Kb3?? (better 32.Ng3-+) 32...Be2 33.Be2 (33.Bb1 Bc4 34.Kb2 Kb4-+) 33…Nd4 (33...Nd4 34.Kc3 Ne2 35.Kb3 Kd4-+) 0-1. aspirantemaestro05 (1760) - Lance5500 (2620), lichess.org, 2018. (=1.d4 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.Nf3 d6 6.e3 e5)

9.Nbd2 a5 10.Ne5 Be5 11.Be5 de5 12.b5 Qe7 13.Be2 Nd7 14.0-0 Re8 15.Rfd1 a4 16.Qb2 Nc5 17.Qa3 Bf5 18.Nb1 Bb1 19.Rab1 b6 20.Rd5 h5 21.Rbd1 Kg7 22.Qc3 Ne4 23.Qc2 Nf6 24.R5d2 Qc5 25.Bf3 e4 26.Be2 Re6 27.Qc3 Kh7 28.h3 a3 29.Rd8 Rd8 30.Rd8 c6 31.bc6 Rc6+= 32.Ra8 b5 33.Qd2 Rd6 34.Qa5+/- Qe5 35.Qb5 Qb2 36.Qc5 Qb6?? 37.Qc8 Kh6 38.c5 Qb1 39.Kh2 Re6 40.Qf8 Kg5 41.g3 Qb2 42.h4 Kf5 43.Qb8?? Re5 44.Qb2 ab2 45.Rb8 Rc5 46.Rb2 Ra5 47.Bc4 Ra4?? 48.Rb5+- Kg4 49.Be2 1–0. Levy,Louis – Sherwin,James T, USA op Aspen, 1968. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Ne5 Be5 10.Be5 de5 11.Nc3 Be6 12.Be2 Nd7 13.0-0 Qe7 14.Rfd1 Rad8 15.Bf3 (15.Nb5 Nb6+=) 15...c6 16.Rac1 Nb6 17.Be2 a6 18.a4 Qh4 19.Rd8 Rd8 20.Nb1 Rd7 21.g3 Qd8 22.Qc2 Bf5 23.e4 Be6 24.c5 Nc8 25.Rd1 Rd4 26.Na3 Ne7 27.Kg2 Kg7 28.f3 f5 29.Rd4 Qd4 30.Bc4 Qe3 31.Be6 Qa3 32.Qd2 fe4 33.fe4 g5? 34.Qd7 Kf6 35.Bc4 Qb2 36.Kh3 g4 37.Kg4 h5 38.Kh5 Qh2 39.Kg4 (39.Kg4 Qf2 40.Qd6 Kg7 41.Qe7 Kh6 42.Qb7+-) 1–0. Hickl,Thomas – Clara,Hans Joachim, FRG–chT fin Koblenz, 1977. (=1.Nf3 g6 2.d4 Nf6 3.c4 Bg7 4.b4 0-0 5.e3 d6 6.Bb2 e5)

10.Nc3 c6 11.Be2 Be6 12.Ne4 Nd7 13.Rd1 a5 ½–½. Ambelang,Harald (2145) – Sislian,Hanno (2270), BL2–Nord, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4 8.Qb3 Ne5)

10.Nc3 Be6 11.Rd1 Nd7 12.Be2 c6 13.b5 cb5 14.Qb5 a6 15.Qb4 (15.Qb7? Rb8 16.Qa6 Rb2-+) 15...Qb6 16.Qb3 Qb3 17.ab3 e4 18.Na4 Bb2 19.Nb2 Nc5 20.b4 Nd7 21.Ra1 Ne5 22.0-0 Rfd8 23.Rfd1 Rd1 24.Rd1 a5 25.ba5 Ra5 26.f3 ef3 27.gf3 Ra3 28.Kf2 Kg7 29.f4 Rb3 30.Rd2 Ng4 31.Bg4 Bg4 32.Nd3 Bf5 33.Ne5 f6 34.Nf3 Rc3 35.Nd4 Bg4 36.Nb5 (36.Rb2 Bc8+=) 36...Rc1 (better is 36...Rc4!? 37.Nd6 Rb4+=) 37.Nd6+= Be6 38.Nb7 ½–½. Kochetkov,German (2395) – Shishkin,Vadim (2475), Platonov Memorial, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4 8.Qb3 Ne5)

10.Nc3 Be6 11.Rd1 Nd7 12.Be2 c6 13.Ne4 Qh4 14.Nd6 b5 15.Qc2 (15.Qc3 bc4 16.Bc4 c5 17.bc5 Nc5+=) 15...Nb6 16.g3 (16.cb5 cb5 17.e4 a6=) 16...Qe7= 17.a3 (17.c5 Rfd8=) 17...bc4 18.Nc4 Nc4 19.Bc4 a5 20.Be6 Qe6 (worse 20...fe6 21.ba5 c5 22.Bc3+=) 21.ba5 Ra5 22.0-0 Rb8 23.Rd2 Rab5 (23...Rd5 24.Rfd1=) 24.Bc1 (24.Rfd1 Bf8 25.Rd8 f5 26.Rb8 Rb8=) 24...Bf8 (24...e4 25.Rfd1 Rd5 26.a4–/+) 25.Qe4 (25.e4 Rc5 26.Qd3 Qc4=+) 25...Rb3 The isolani on a3 becomes a target 26.Rd3 (26.Rfd1 f5 27.Qc2 e4=+) 26...Rd3–/+ 27.Qd3 e4 28.Qd4 (28.Qc2 Bg7–/+) 28...Bg7 29.Qa7 Rb1 (29...Be5 30.Bd2–/+) 30.Bd2 Rf1 31.Kf1 Qc4 (31...h6 32.Bb4=+) 32.Kg2 h5 (32...Bf8 33.Qb8=+) 33.Bb4= Qe2 (33...Qd5 34.Qb8 Kh7 35.Qd6 Qd6 36.Bd6=) 34.Qb8 Kh7 35.Qf4 Qc4 36.Qd6 g5 37.Qd7 Kg6 38.h3 Qb5 39.g4 hg4 40.hg4 Bb2? (better 40...Qd5 41.Qd5 cd5+-) 41.Qe8+- Be5?? (better 41...Bg7 42.Qe4 Kh6+-) 42.Qg8 Kf6 (42...Bg7 43.Bf8 Qe5 44.Bg7 Qg7 45.Qg7 Kg7 46.a4+-) 43.Qh7 Bb8 (43...c5 44.Qf5 Ke7 45.Qe5 Kd7 46.Qd5 Kc8 47.Bc5 Qd7 48.Qa8 Kc7 49.Qe4 Qc6 50.Qc6 Kc6+-) 44.Qh6 Ke5 45.Qg5 Ke6 46.Qh6 (46.Qe7 Kd5 47.Qf7 Ke5 48.Qf5) 46...Kd5 (46...f6 47.Qg6 Qe5 48.Qe8 Kd5 49.Qg8 Qe6 50.Qb8 c5 51.Qb7 Kc4+-) 47.Qf6 Kc4 (47...c5 48.Qf7 Kd6 49.Qf8 Kd7 50.Qf5 Kc7+-) 48.Qd4 Kb3 49.Qc3 (49.Qc3 Ka2 50.Qc2 Ka1 51.Bc3 Qb2 52.Qb2) 1–0. Okon,Dariusz (2185) – Shilov,Sergey (2200), XXX Gniota Memorial Open, 2015. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4 8.Qb3 Ne5 9.Ne5 de5)

10.Nc3 Be6 11.Rd1 Qh4 12.g3 (12.Nd5 Bd5 13.cd5 Nd7+=) 12...Qg4 (12...Qh5 13.Nd5 Bd5 14.cd5+=) 13.h3 Qf3 14.Rg1 (14.Rh2 Qf6+=) 14...Qh5 (14...c6 15.b5=) 15.Nd5+= Na6 (15...Bd5 16.cd5 Rd8 17.Bg2+=) 16.Ba3 c6 (better 16...Bd5!? 17.cd5 Nb8+=) 17.b5+- cd5 18.cd5 (worse 18.Bf8 dc4 19.Bc4 Bc4 20.Qc4 Bf8 21.ba6 ba6+-) 18...Bd5? (18...Nc7 19.Bf8 Rf8 20.de6 Ne6 21.Bg2+-) 19.Rd5 (better 19.Qd5!? Nc7 20.Qb7 Ne6+-) 19...Nc7 20.Bf8 Rf8 21.Rd7 Ne6 22.Qd1 (22.Rb7?! Nc5 23.Qd5 Nb7+=) 22...Qf5 23.Bg2 (23.g4 Qf6 24.Rb7 e4+-) 23...Nc5+- Black plans e4 24.Rd5 b6 (24...Rc8 25.f4+-) 25.Ke2 (25.Rf1 Qc8+-) 25...Qe6 (25...Qh5 26.g4 Qh4+-) 26.Qd2 (better 26.Qc2!?+-) 26...e4+= 27.Rb1 (27.f3!?+=) 27...Na4= 28.Kf1 Nc3 29.Rd1 Nd5 (29...f5!?=) 30.Qd5+= Qd5 31.Rd5 f5 32.Kg1 (32.f3 ef3 33.Bf3 Re8+=) 32...Bc3 (32...Rc8 33.Rd7+=) 33.Bf1 (33.f3 ef3 34.Bf3 Be1+=) 33...Kg7= 34.Bc4 Rf7 35.Bb3 (35.f3 Rc7 (35...ef3? 36.Rd3 Be1 37.Bf7 Kf7 38.Rd7 Ke6 39.Rh7+-) 36.Bb3 ef3=) 35...Bf6 (35...Rc7 36.f3=) 36.Kf1 (36.g4 Bh4=) 36...Re7 (36...h6 37.Ke2=) 37.Ke2 Be5 (37...h5 38.f4=) 38.Kd2 (38.g4 Kf6=) 38...Kf6 39.Rd8 Kg7 (39...Rc7 40.Rf8 Kg5 41.h4 Kg4 42.Rf7=) 40.Bd5 (40.g4 fg4 41.hg4 h5=) 40...Kf6 41.Bc6 Kg7 (41...h5 42.g4=) 42.Kc2 (42.g4 Rc7+=) 42...h6 (42...Rc7 43.g4=) 43.Bd5 (43.g4 Rc7=) 43...Kf6 (43...Rc7 44.Kb3=) 44.Kb3 Kg7 (44...Kg5 45.Bc4=) 45.Kc2 (45.g4 Rc7=) 45...Kf6 46.Kd1 Kg7 (46...Rc7 47.Re8 Bc3 48.Re6 Kg7 49.Rd6=) 47.Ke2 Kf6 (47...h5 48.g4=) 48.Bc6 (48.f4 ef3 49.Kf3 Bc7+=) 48...Bc7 (48...Rc7 49.f4 ef3 50.Kf3+=) 49.Rg8 (49.Rf8 Kg7 50.Rc8 Be5+=) 49...Be5 50.g4 Rg7 51.Rf8 Rf7 52.Rg8 Rg7 53.Rh8 Kg5 54.gf5 gf5 55.Rf8 Bd6 (55...Re7 56.h4 Kg6 57.f3=) 56.Rd8 (56.h4 Kg4 57.Rf6 Be7 58.Rh6 Bh4 59.f3 ef3 60.Bf3 Kg3+=) 56...Be5 (56...Bc5 57.Rh8=) 57.Re8+= Bd6 (57...Kf6 58.Bd5 Bc3 59.Re6 Kg5 60.f4 ef3 61.Kf3+=) 58.Re6 (58.f3 ef3 59.Kf3 h5+=) 58...Bc5= 59.Kf1 (59.f4 ef3 60.Kf3 h5+=) 59...Re7 (59...Bb4 60.f4 ef3 61.Kf2=) 60.Re7 Be7 61.Ke2 (61.f3 ef3 62.Kf2 Kf6=) 61...Kf6 62.Bd7 (62.f3 Ke5=) 62...Ke5 63.f4 Kf6 64.Be8 Bc5 (64...Ke6 65.Bc6=) 65.Kd2 (65.h4 Ke7 66.Bg6 Ke6=) 65...Bb4 66.Ke2 Bc5 (66...Bc3 67.h4=) 67.Kf2 (67.h4 Ke6=) 67...Bf8 ½–½. Zarubitski,Viachaslau – Rahul Srivatshav P, B12, 2014. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4 8.Qb3 Ne5 9.Ne5 de5)

10.c5 Be6 11.Bc4 Bc4 12.Qc4 Qg5 13.Qe4 (13.0-0 Nc6+=) 13...c6= 14.Nd2 f5 15.Qc4 Kh8 16.0-0 Qe7 17.Rad1 Nd7 18.Nb3 Nf6 19.a3 Rad8 20.Qc2 Ng4 21.h3 Nf6 22.Nd2 Rd7 (22...Rd5 23.f3=) 23.Nc4+= Nd5 24.e4 fe4 25.Qe4 The pressure on the isolated pawn grows 25...Rf4 26.Qe2 Rf5 27.Rfe1 (27.Nd6!? Rg5 28.Qf3+-) 27...Nf4= 28.Qe4 Rd5 (28...Rd1 29.Rd1 Qg5 30.Kf1+-) 29.Nd6 Rf8 (29...Rd1 30.Rd1 Rg5 31.Nb7 Rg2 32.Kf1=) 30.Bc1 Rd1 (30...b6 31.Bf4 Rf4 32.Qe3+=) 31.Rd1+- Nd5 32.Re1 Qf6 33.Qc2 (33.f3 Nc3 34.Qg4 Qe7+-) 33...Nf4 (33...b5!?+-) 34.Bf4 ef4 35.Nb7 f3 36.Qe4 (better 36.g3!?+-) 36...fg2+= 37.Qg2 Qb2 38.Na5 (38.Qg3 Bd4 39.Rf1 Be5=) 38...Qa3 (better 38...Bc3!? 39.Rd1 Qa3 40.Nc6 Bb4 41.Nb4 Qb4+=) 39.Nc6+- Bc3 (39...a5 40.ba5 (40.Na5? Qb4 41.Re2 Qa5-+) 40...Qc3 41.Rf1+-) 40.Re3 (40.Qg3 a6+-) 40...Qa1 (40...a5 41.ba5 (41.Na5?! Qb4 42.Nb7 Bd4=+) 41...Qc5 42.a6+-) 41.Qf1 Qb2 42.Qe2 Qb1 43.Qf1 (43.Kg2!? Qf5+-) 43...Qc2 (43...Qb2 44.Re4 Qa3+-) 44.Re7 Qf5 (44...a5 45.ba5 Qf5 46.Qe2 Qc5 47.Qe3+-) 45.Ra7 Qg5 46.Qg2 Qc1 47.Kh2 Qf4 (47...Bb4 48.Nb4 Qc5 49.Ra8 Qb4 50.Rf8 Qf8 51.Qg3=) 48.Kg1 (better 48.Qg3!? Qd2 49.Re7 Rf2 50.Kg1+-) 48...Qc1= 49.Qf1 Qg5 50.Kh1 Qd5 (50...Qd2 51.f3+-) 51.Qg2+- Qd1 (51...Qd2 52.Qg3 Qe1 53.Kg2 Qe4 54.Kh2+-) 52.Kh2 Qd2 53.f3 Qf4 (53...Rf3 54.Qd2 Combination) 54.Qg3 Qd2 55.Qg2 Qf4 56.Qg3 Qd2 57.Qg2 Qf4 58.Qg3 Qd2 ½–½. Choma,Juliana Luiza (1885) – Kawabata,Elise Yuriko (1900), Championship Paranaense Feminino – Fase, 2011. (=1.Nf3 Nf6 2.c4 g6 3.d4 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 e5 7.de5 Ng4 8.Qb3 Ne5)

10.Be2 a5 11.b5 Nd7 12.Nd2 Re8 13.Rd1 Qg5 14.h4 Qe7 15.Ne4 Qb4 16.Qc3 Nf6 17.Bf3 Rb8 18.a3 Qc3 19.Bc3 Be6 20.Nf6 Bf6 21.Bd5 Bd5 22.cd5 b6 23.Ke2 Rbd8 24.e4 Rd7 25.h5 Bg7 26.g4 f5 27.gf5 gf5 28.h6 Bf8 29.Rh5 fe4 30.Be5 Bh6 31.Bc7 Rc7 32.Rh6 Rc2 33.Rd2 Rd2 34.Kd2 Re5 35.Rb6 Rd5 36.Kc2 h5 37.a4 Rd4 38.Rh6 Ra4 ½–½. Hickl – Klundt, Delmenhorst 1983.

9.Ne5 de5 10.Nc3 Nc6 11.a3 Bf5 12.Qb3 Re8 13.Rd1 Qc8 14.Be2 Qe6 15.Nd5 Qc8 16.0-0 Ne7 17.Bf3 c6 18.Nc3 Bg4 19.Bg4 Qg4 20.f3 Qe6 21.Ne4 Rad8 22.Rd8 Rd8 23.Rd1 Rd7 24.Nc5 Rd1 25.Qd1 Qc8 26.e4 Qc7 27.f4 b6 28.Nd7 f6 29.c5 Kf7? (better is 29...Nd5! 30.Ne5 Nf4+=) 30.fe5+- fe5 31.Qf3 (better is 31.Qd6 Qd6 32.cd6+-) 31...Ke6 (31...Ke8 32.Nf6 Bf6 33.Qf6 bc5 34.Be5 Qb6+/-) 32.Be5+- (32.Be5 Qd7 33.Bg7+-) 1–0. Sandmann,Bernd (2150) – Trommsdorff,Friedrich (2185), Wuerttemberg–ch Seniors, 2004. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4)

9.Ne5 de5 10.c5 Bf5 (10...Be6 11.Nd2=) 11.Qc3 (11.e4 Be6=) 11...a5 (11...Qf6 12.Nd2=) 12.b5 Nd7 (12...a4 13.Be2=) 13.Nd2 (13.c6 bc6 14.Qc6 Rb8+=) 13...b6 14.e4 Nc5 (better is 14...Be6!? 15.c6 Nc5=) 15.ef5+/- Na4 16.Qc2 Nb2 17.Rb1 (17.f6 Bf6 18.Ne4 Qd4 19.Nf6 Kg7+/-) 17...e4+= 18.Rb2 (worse is 18.Ne4 gf5 19.Ng3 Re8 20.Be2 f4–/+; 18.Qe4?? Re8 19.fg6 fg6-+) 18...gf5? (18...Bb2 19.Qb2 gf5 20.Qe5+=) 19.Be2 (better is 19.Rb1+-) 19...Qg5 (19...Bb2 20.Qb2 Qg5 21.g4+=) 20.0-0 (20.Rb3 Qg2 21.Rf1 Qh2+/-) 20...Bb2= 21.Qb2 Rad8 22.f4 (22.Rd1!?=) 22...Qg7+= 23.Qg7 Kg7 24.Nc4 Rd5 25.a4 (25.Ne3 Rd2 26.Nf5 Kg6=) 25...Rfd8 26.Kf2 Kf6 (26...Rc5 27.Ke3+=) 27.Rb1 (27.Ne5 Rd2+=) 27...Rc5 (27...Rd4 28.Rc1=) 28.Ke3= Rg8 (28...Ke6 29.Re1+=) 29.g3 (29.Rg1 Ke6=) 29...Rd8 30.Rb2 Ke6 (30...Ke7 31.Rd2=) 31.Rd2 Rcd5 32.Rc2 Rc5 33.Rd2 Rcd5 34.Rb2 Rc5 35.h3 Rg8 36.Kf2 Rd8 37.Ke3 Rg8 38.Kf2 Rd8 39.Rc2 Rd4 40.g4 e3 41.Ke3+/- Re4 42.Kf3 Kd5? 43.Rd2+- (43.Rd2 Ke6 44.gf5 Kf5 45.Ne3 Re3 46.Ke3 Rc3 47.Rd3+-) 1–0. Lenic,L (2570) – Stella,A (2275), Open, Brescia ITA, 2009. (=1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 e5)

9.Ne5 de5 10.Bd3 Qe7 11.0-0 Rd8=.

9.a3 Nce5 10.Be2 Be6 11.Ne5 Ne5 12.Qb3 Qh4 13.Nd5 c6 14.Nf4 Qe7 15.Ne6 Qe6 16.0-0 Rfd8 17.Qc2 d5 18.c5 Qf6 19.Bd4 Qh4 20.Qc3 f6 21.g3 Qh3 22.f4 Nd7 23.Bf3 Re8 24.Rae1 Qe6 25.e4 de4 26.Be4 Qf7 27.Bf3 Re1 28.Re1 Re8 29.Re8 Qe8 30.Qe3 Qe3 31.Be3 f5 32.Bc1 Bd4 33.Kf1 Nf6 34.Ke2 Kf7 35.Kd3 Bg1 36.h3 Bh2 37.g4 fg4 38.hg4 h5 39.gh5 gh5 40.f5 Bg3 41.Kc4 h4 42.b5 h3 0–1. polynesia46 – sobtkija (1805), kurnik, 2012.

9.ed6+/- Nb4 10.a3 Nc6 11.dc7 Qc7 12.Qd2 Qa5 13.Nd1 Nge5 14.Ne5 Qd2 15.Kd2 Ne5 16.f4 Rd8 17.Ke1 Ng4 18.Bg7 Kg7 19.h3 Nf6 20.Nc3 Be6 21.Nb5 Rdc8 22.Nd6+/- Rc6 23.Rd1 Ra6 24.Rd3 Rb6 25.g4+- Rb1 26.Kf2 Rb2 27.Kg3 h5 28.f5 gf5 29.gf5 Bd7 30.e4 Bc6 31.Kf4 Rd8 32.Rg1 Kf8 33.e5 Ne8 34.h4 f6+/- 35.Ne8 Rf2? 36.Kg3 Rf1= 37.Rd8 Rg1 38.Kf2 Rg2 39.Kf1 fe5 40.Rc8 Rc2–/+ 41.Nf6 Ke7 42.Nh5 Rc4 43.f6 Ke6 44.Rf8 Rh4 45.Ng7 Kd7 46.Ke1 Rf4 47.Rf7 Kd6-+ 48.Rf8 Rf3 49.Kd2 e4 50.Nh5 Bb5 51.Rd8 Ke6 52.Rd4 e3 53.Ke1 e2 54.Kd2 ½–½. Obregon Rivero,J (2410) – Pulvett,D (2240), 45th Capablanca Mem Open, Havana CUB, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 e5 6.d4 0-0)

9.Be2 a5 10.a3 Nbc6 11.b5 Nf3 12.gf3 Ne7 13.h4. Levin – Lyuboshin, Minsk 1957.

9.Be2 a5 10.a3 Nbc6 11.Ne5 Ne5 12.0-0 Be6 13.Qb3 c6 14.f4 Nc4 15.Bc4 d5 16.Nd5 Bb2 17.Qb2 cd5 18.Bb3 Qb6 19.Qd4 Qd4 20.ed4 Rfc8 21.Rac1 ab4 22.ab4 Rc1 23.Rc1 Ra3 24.Rc3 Bf5 25.g3 Be4 26.Kf2 Kg7 27.Re3 Ra6 28.Rc3 Ra1 29.Rc5= b6 30.Rb5 Ra6 31.Bd1 Kf6 32.Bg4 Ke7 33.Bc8 Ra2+= 34.Ke3 Kd8 35.Bb7 Ra3 36.Kd2 Kc7 37.Rd5 Kb7 38.Re5 Bf5 39.Re7 Kc6 40.Rf7 h5 41.Rf6 Kb5 0–1. Labib,Ibrahim Hasan (2425) – Hesham,Abdelrahman (2335), Cairo EGY, Zone, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5 7.de5 Ng4 8.Nc3 Ne5)

9.Be2 Nbc6 10.Ne5 Ne5 11.0-0 a5 12.ba5 (12.a3 Be6 13.Nb5 ab4 (worse 13...Bc4 14.Bc4 Nc4 15.Bg7 Kg7 16.Qd4 Ne5 17.f4+-; 13...Nc4? 14.Bg7 Ne3 15.fe3 Kg7 16.ba5+-) 14.ab4 Ra1 15.Qa1 c6=) 12...Ra5 13.f4 Nc6 14.Qb3 b6 (14...Re8 15.Nd5=) 15.Nd5 Be6 (15...f5 16.Bg7 Kg7 17.Bf3=) 16.Bg7 (16.Bf3 Bb2 17.Qb2 Bd5 18.cd5 Ne7+=) 16...Kg7 17.Qb2 (17.Bf3 Qd7=) 17...f6 18.e4 Bd5 (18...Rf7!?=) 19.cd5+= Nb8 20.Bb5 (20.Rac1 Nd7+=) 20...Nd7 (20...Qe7 21.Rac1+=) 21.Rae1 White plans e5 21...Nc5 (21...Qe7 22.Bd7 Qd7 23.f5+=) 22.e5 fe5 23.fe5 Rf1 24.Rf1 Rb5 25.Qb5 de5 26.Qc4 Qg5 (26...Qd6 27.a4+-) 27.Qc3 h5 (better 27...Kg8!?+-) 28.Re1+- Kf6?? (28...Qf6 29.Qe5 Qe5 30.Re5 Kf6+-) 29.h4 Qh4 (29...Qf5 30.Rf1 Qf1 31.Kf1 g5 32.hg5 Kf5+-) 30.Qe5 Kf7 31.Rf1 Kg8 32.Qe8 Kg7 (32...Kh7 33.Rf7 Kh6 34.Qf8 Kg5 35.Qe7 Kg4 36.Qe2 Kg5 37.Qe3 Qf4 38.Qf4) 33.Qf8 (33.Qf8 Kh7 34.Rf7) 1–0. Janek – Nikkwl, internet, 2017.

9.Be2 Nbc6 10.Ne5 Ne5 11.0-0 Be6 12.c5 Nc4 13.Bc4 Bc4 14.Re1 dc5 15.bc5 Qd1 16.Nd1 Rfd8 17.Bg7 Kg7 18.Nc3 Rd2 19.Rec1 Rad8 20.a3 Ba6 21.Rab1 c6 22.h3 h5 23.a4 h4 24.Rb4 g5 25.f4 f6 26.Kh2 Kg6 27.Ne4 Re2 28.fg5 fg5 29.Rf1 Re3 30.Rf6 Kg7 31.Rf5 Re4? (better 31...Rd5!? 32.Rg5 Rg5 33.Ng5 Re5=) 32.Re4+/- Bd3 (better 32...Kg6!? 33.Ree5 Bd3+/-) 33.Rg5+- Kf6 34.Reg4 Bf5 35.Rg8 Rd5 36.Rb4 (36.Rh4 Rc5 37.Rh6 Ke5+-) 36...Rc5 37.Rb7 Ra5 (37...a5 38.Rf8 Kg6 39.Ra7+-) 38.Rb4 c5 39.Rh4 Be6 40.Rh6 Kf7 41.Rgh8 Bf5 42.Rc6 Be4 43.Rc7 Kg6 44.Rh4 (44.h4 Ra4 45.h5 Kf6+-) 44...Ra4 (44...Bd3+-) 45.Rc5 Kf6 (45...a6 46.Re5 Bc2 47.Ra4 Ba4 48.Re6 Kg5 49.Ra6+-) 46.Rf4 (better 46.Rh6 Kg7 47.Rd6 Bg6+-) 46...Ke6 47.h4 Kd6 48.Rg5 1-0. Huerga Leache,M (2450) - Gavilan Diaz,M (2330), ch-ESP Rapid, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Be2 Be6 10.Ne5 de5 11.Qc2 (11.Qb3 Qh4=) 11...f5 (11...Qe7 12.a3=) 12.0-0 c6 (12...Qe7 13.a3=) 13.Rad1 (13.Rfd1 Qe7 14.b5 Nd7=) 13...Qe7 14.a3 Nd7 15.c5 (15.Rd2 Rad8=) 15...Nf6 (15...a5 16.f4=) 16.f3 (16.Rd6 Rad8 17.Rfd1 Nd5+=) 16...Rfd8 (16...Rad8 17.Qa4=) 17.e4 Bh6 (17...Qf7 18.ef5 gf5 19.Rfe1=) 18.Bc1 (18.ef5 Be3 19.Kh1 gf5+=) 18...Bc1= 19.Qc1 f4 ½–½. Schuehler,Ernst – Ruesch, corr DDR, 1967.

9.Be2 Be6 10.Ne5 Be5 11.0-0 a5 12.a3 Qh4=.

9.Be2 Be6 10.Ne5 Be5 11.0-0 Bc4?? 12.Bc4+- Qh4 (12...Bh2 13.Kh2 Qh4 14.Kg1 Qc4 15.Nd5+-) 13.f4 (13.f4 Bg7 14.Qd5+-) 1–0. Krebbers,Wilfried (1935) – Rothkugel,Wolfgang (2100), Goch op, 2004.

9.Be2 Be6 10.Ne5 Be5 11.0-0 Nd7 12.Qb3 a5 13.a3 Nb6 14.Rad1 Qe715.Nd5 Bd5 16.cd5 ab4 17.ab4 Bb2 18.Qb2 Qe5 19.Qb3 Rfe8 20.Bf3 Qe7 21.Rc1 Rac8 22.Rc3 Nd7 23.Rfc1 Ne5 24.Qd1 Qd8 25.g3 h5 26.Bg2 Re7 27.Qd4 Qe8 28.h3 f5 29.Kh2 Nf7 30.f4 Nh6 31.Qf6 Kh7 32.Bf3 Rf7 33.Qd4 Re7 34.Kg2 Qd7 35.Kf2 Kg8 36.Qf6 Kh7 37.b5 Ng8 38.Qg5 Qb5 39.Bh5 Qe8 40.Bf3 Nh6 41.Qf6 Rf7 42.Qd4 Ng8 43.g4 Qd8 44.Kg3 Nf6 45.g5 Nd7 46.h4 Nc5 47.h5 Qh8 48.Rh1 Qd4 49.ed4 Ne4 50.Be4 fe4 51.Re3 Re8 52.hg6 Kg6 53.Kg4 Ref8 54.Re4 Rf5 55.Re6 Kg7 56.Re7 Kg8 57.Kh5 R5f7 58.Rf7 Rf7 59.Kg4 c5 60.dc6! bc6 61.f5 Ra7 62.f6 Ra2 63.Kf5 c5 64.Kg6 Ra7 65.f7! (65.f7 Rf7 66.Rh8 Kh8 67.Kf7+-) 1–0. Tratar,M (2480) – Markoja,S (1940), 16th HIT Open, 2011. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 e5)

9.Ne5 de5 10.Qd8 Rd8 11.Nd5 Rd7 12.0-0-0 Kf8 13.Be2 Ke8 14.g4 c6 15.Nc3 Na6 16.a3 f5 17.gf5 Rd1 18.Rd1 Bf5 19.Bf3 Ke7 20.Ne4 Rf8 21.Rd2 Be6 22.Be2 Nb8 23.Nc5 Bc8 24.Nd3 Be6 25.Ne5 Rf2 26.Bd3 Rd2 27.Kd2 Bh6 28.Bd4+/- a6 29.c5 Nd7 30.Nc4 Bc4 31.Bc4 Bg5 32.Ke2 Bf6 33.Bb3 h6 34.Kf3 Ne5 35.Ke4 Ng4= 36.Kf4 Nh2–/+ 37.Bc4 h5 38.Be5 Be5 39.Ke5 Ng4 (39...Ng4 40.Kf4 Kf6-+) 0–1. Krnic,Zdenko (2425) – Miljanic,Boro (2385), YUG–chT2 Yugoslavia, 1994. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.Ne5 de5 10.Qd8 Rd8 11.Nd5 Rd7 12.Rd1 Kf8 13.Bd3 c6 14.Nc3 Rd8 15.h4 (15.e4 Be6+=) 15...Be6 (15...Na6 16.a3+=) 16.h5 Nd7 (16...gh5 17.Rh5 Bg4 18.Be2 Rd1 19.Bd1 Bh5 20.Bh5–/+) 17.b5 (17.Ne4 Kg8+=) 17...f5 (17...Nb6 18.bc6 bc6 19.h6=) 18.e4 Kf7 19.Ba3 (19.ef5 gf5 20.h6 Bf6+=) 19...Nb6 (19...Rac8 20.Bb4=) 20.c5 Bc4 (better is 20...Nc4!? 21.bc6 bc6 22.hg6 hg6=) 21.Bc2+/- Rd1 22.Kd1 Rd8 23.Ke1 Nc8 24.ef5 gf5 25.h6 Bf6 26.Bf5 e4? 27.Ne4 Re8 28.bc6 bc6 29.f3 Be6 30.Bh7 Bd8 31.Bb2 1–0. pcmvr (2715) – emanuelle (2420), net–chess.com, 2006.

9.Ne5 de5 10.Be2 Be6 11.0-0 Qe7 12.Qb3 Nd7 13.Nd5 Qd8 14.e4 c6 15.Ne3 f5 16.ef5 gf5 17.f4 Qb6 18.Rad1 Qc7 19.g4 ef4 20.gf5 fe3 21.Bg7 Rf5 22.Rf5 Bf5 23.Bb2 Qf4 24.c5 Kf8 25.Rf1 Qg5 26.Kh1 Ke7 27.Bf3 Re8 28.Re1 Kd8 29.Bc1 Qf4 30.Re3 Be4 31.Re4 Qc1 32.Kg2 Qd2 33.Kg3 Re4 34.Be4 Qg5 35.Kh3 Qh5 36.Kg3 Qg5 37.Kh3 Qh5 38.Kg3 Qe5 39.Kf3 Qh2 40.Qg8 Kc7 41.Qh7 Qa2 42.Bf5 Qd5 43.Ke3 b6 44.cb6 ab6 45.Qh2 Qd6 46.Qh7 b5 47.Qd7 Qd7 48.Bd7 Kd7 49.Kd3 Kd8 50.Kd4 Ke7 51.Ke3 Kf6 52.Kd4 Ke7 53.Ke3 Kd8 54.Kd4 Kd7 55.Kd3 ½–½. Schoeneberg – Uhlmann, DDR 1972.

9.Ne5 de5 10.Be2 Bf5 11.0-0 Nd7 12.Qb3 c6 13.Rfd1 Qe7 14.e4 Be6 15.Nd5 Qd8 16.b5 cd5 17.cd5 Nc5 18.Qe3 Qb6 19.de6 Ne6 20.Bc4 Rfd8 21.Qb6 ab6 22.Bd5 Nc5 23.Bc3 Rd7 24.Kf1 Ra4 25.f3 Kf8 26.a3 (26.Rac1 Bf6+/-) 26...Ke8 27.Ke2 Ra8 28.h4 h6 29.Ra2 (29.Bb4 Bf8+=) 29...Ra4 (29...Na4 30.Bb4+=) 30.Bb4 Bf8 31.Rad2 Ra8 32.Bc5 bc5 (better is 32...Bc5!? 33.Bc6 bc6 34.Rd7 cb5+=) 33.Bc6+- bc6 34.Rd7 cb5 35.Rb7 b4 (35...Ra3!? 36.Rb5 Ra2 37.Rd2 Rd2 38.Kd2 Be7+-) 36.ab4 cb4 37.Rd5 f6 38.Rd2 (38.Rdd7!? Rc8+-) 38...h5 39.Rc2 1–0. Kazhgaleyev,M (2560) – Mamyrbay,Assad (2220), 9th Agzamov Memorial, 2015. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.c4 d6 6.Bb2 e5 7.de5 Ng4 8.Nc3 Ne5)

10.Be2 Be6 11.0-0 a5 12.a3 Nd713.Qb3 Nb6 14.Rad1 (14.Rfd1 Qh4 15.f4 Bg7 16.Nb5 a4 17.Qc2 Bb2 18.Qb2 Qe7 19.Qd4 Rfe8 20.e4 Rad8= 0.00) 14...f5 (14...Qh4 15.f4 ab4 (15...Bg7 16.Nb5= a4 17.Qc2 Bb2 18.Qb2 Qe7 19.Qd4 f5 20.c5 dc5+= 0.37) 16.fe5 bc3 17.Qc3 d5 18.cd5 Nd5 19.Qd3 Qg5 20.Bd4 Ra5= –0.09; 14...ab4 15.ab4 Qh4 16.f4 Bf6 17.e4 Rfe8 18.e5 Bg7 19.Nb5 Rec8 20.Bd4 de5+= 0.59) 15.Nd5 Nd5 (15...Bd5 16.cd5 Bb2 17.Qb2 ab4 18.Qb4= Qe7 19.Rd3 Ra4 20.Qb2 Qf7= 0.22) 16.cd5 Bf7 17.b5 Qf6 18.Be5 de5 19.Qc3 (19.Bc4 a4 20.Qc3 Qd6+= 0.50) 19...Qe7 (19...Qd6 20.Bc4 Rad8+= 0.50) 20.b6 (20.Rfe1 Rad8+= 0.53 (20...Qd6+=)) 20...Rfc8= 21.bc7 Rc7 22.Qb2 Qd6 23.Rd2= Rd8 24.Rfd1 Be8 25.Bb5 Bb5 26.Qb5 b6 27.a4 Rc5 28.Qb3 Kg7 29.g3 Rb8 30.Rb2 Rd8 31.Qb6 Qb6 32.Rb6 Rcd5 33.Rd5 Rd5 34.Kg2 h5 35.h4 Rc5 36.Rb5 Rb5 37.ab5 a4 38.b6 a3 39.b7 a2 40.b8Q a1Q 41.Qc7 Kf6 42.Qd6 Kf7 43.Qd5 Kf6 44.e4 fe4 45.Qe4 Qd4 46.Qc6 Kg7 47.Qc7 Kf6 48.Qc6 Kg7 49.Qb7 Kf6 50.Qf3 Kg7 ½–½. De Jong,M (2340) – Kleijn,C (2210), Harmonie Open A, Groningen NED, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

10.f4 Bg7 11.Be2 a5 12.a3 Be6 13.0-0 Na6 14.Qb3 f5 15.Na4 ab4 16.ab4 b5 17.Bg7 Kg7 18.Qc3 Qf6 19.cb5 Qc3 20.Nc3 Nb4 21.Bf3 Ra1 22.Ra1 Nd3 23.Ra7 Rf7 24.Nd5 Bd5 25.Bd5 Re7 26.b6! Re3 27.h3 Kh6 28.b7 (28.b7 Re1 29.Kh2+/-) 1–0. Mikhalchishin,Adrian (2530) – Cigan,Stefan (2375), SLO–chT Bled, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0-0 6.e3 e5 7.de5 Ng4 8.Nc3 Ne5 9.Ne5 Be5)

10.f4 Bg7 11.Be2 a5 12.a3 Re8 13.0-0 Re3 14.Qd2 Re8 15.Nd5 Bb2 16.Qb2 Nd7 17.Bg4 f5 18.Bf3 Re6 19.Rfe1 Nf8 20.b5 c6 21.Nc3 Bd7 22.Na4 Rc8 23.Qd4 Qc7 24.Red1 cb5 25.Nb6 Bc6 26.Nc8 Bf3 27.gf3 Qc8 28.cb5 Qc5 29.Qc5 dc5 30.Rd8 Kf7 31.Rc8 b6 32.Rc7 Re7 33.Rc6 Re6 34.Rd1 Ke7 35.Kf2 Nd7 36.Rc7 Rd6 37.Rd6 Kd6 38.Rc6 Kd5 39.Ke3 a4 40.h4 c4 41.Kd2 Nc5 42.Rb6 1–0. Quadri,Sergio (2045) – Marcotulli,Giancarlo (1880), IECG, 2001.

11.a3 Be6 12.0-0 ab4 13.ab4 Ra1 14.Qa1 Nc6 15.f4 Bg7 16.Ne4 Bb2 17.Qb2 f5 18.Ng5 Qf6 19.Qd2 Kg7 20.Rc1 Bg8 21.b5 Ne7 22.c5 Ra8 23.cd6 cd6 24.Rc7 Ra2 25.Qd3 h6 26.Nf3 b6 27.Rd7 Bd5? 28.Qd5+- Re2 29.Qd4 Qd4 30.Re7 (30.Re7 Kf8 31.Nd4 Rg2 32.Kg2 Ke7 33.Kf3+-; 30.ed4?! d5+-; 30.Nd4?! Re3 31.Rd6 Re4+=) 1–0. Mikhalchishin,Adrian (2520) – Rasik,Vitezslav (2420), Brno Morava–B, 1991. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

11.a3 Be6 12.0-0 Nc6 13.b5+= Nb8 14.f4 Bg7 15.e4 f5 (15...Re8 16.Qd3+=) 16.ef5+/- gf5 17.Rf3 (17.Re1 Ra7+/-) 17...Kh8 (17...Nd7 18.Rg3 Kh8 19.Bf3+/-) 18.Re3+/- Bg8 19.Rg3 (19.Qd2 Nd7+/-) 19...Bf6 20.Bd3 (20.Qc2+=) 20...Be6 (better is 20...Nd7!?+=) 21.Qe2+- Bd4 22.Kh1 Qf6?? 23.Bc2 Qf7+/- 24.Re1 Nd7 25.Bd3 Nf6+/- 26.Qd2 Nh5 27.Rg5 Ng7 28.Bf5 Bf5 29.Qd4 h6 30.Rg3 Rae8 31.Rge3 Kh7 32.Nd5 Re3 33.Re3 Qg6?? 34.Re7 Rf7 35.Nf6 Kh8 36.Rf7 (36.Rf7 Qf7 37.Nh5+-) 1–0. Kempinski,R (2545) – Miroslawska,M (2470), Koszalin op A, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

11.a3 Qh4 12.g3 Qf6 13.Rc1 ab4 14.ab4 Bh3 15.f4 Bc3 16.Bc3 Qe6 17.Kf2 Nc6 18.Ra1 Ra1 19.Qa1 Re8 20.Qc1 h5 21.b5 Ne7 22.Bb2 Nf5 23.Re1 Qe3 24.Qe3 Re3 (worse is 24...Ne3 25.Bf3 Ng4 26.Bg4 Re1 27.Bh3+/- (worse is 27.Ke1 Bg4 28.Kd2 Kf8+=)) 25.Ra1 Re8 26.Ra7 Rb8 27.Bf3 c6 28.Bf6 cb5 29.cb5 Nh6 30.Be7 (30.Rb7? Rb7 31.Bb7 Ng4 32.Ke1 Nf6-+) ½–½. Talon,Alain (2110) – O'Hara,Matthew D (2200), SEMI A004 corr, 1999. (=1.e3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5 7.de5 Ng4 8.Nc3 Ne5 9.Ne5 Be5 10.Be2 a5)

11.a3 Qh4 12.g3 Qh3 13.Bf1 Qg4 14.Be2 Qh3 15.Bf1 Qg4 16.f3 Qe6 17.Kf2 Re8 18.Qc1 ab4 19.ab4 Ra1 20.Ba1 c6 21.Ne4 f5 22.Be5 Qe5 23.Ng5 Nd7 24.h4 Nf6 25.Be2 h6 26.Nh3 Be6 27.Rd1 Bf7 28.Qa3 Nh5 29.f4 Qe4 30.Qc3 Nf6 31.Rd6 Ng4 32.Bg4 fg4 33.Ng1 Qh1 34.Qd3 Qh2 35.Kf1 Qg3 36.Rg6 Bg6 37.Qg6 Kf8 38.Qf6 Kg8 39.Qg6 Kf8 40.Qf6 ½–½. Macieja,B (2580) – Gdanski,Jacek (2520), 59th ch–Poland (Warsaw Poland) (3), 2002.

11.b5 Qh4 12.g3 Qh3 13.Bf1 Qh6 14.Bg2 Nd7 15.Qe2 Nc5 16.Nd5 Bb2 17.Ne7 Kh8 18.Qb2 (18.Nc8?? Ba1 (worse is 18...Rac8 19.Qb2 Kg8 20.0-0+=) 19.Ne7 Bc3 20.Kd1 Qg7-+) 18...f6 19.0-0 Be6 20.Nd5 Qg7 21.Rfd1 Rad8 22.b6 c6 23.Nc7 Bc4 24.Qc3 Qf7 25.Qa5 Na6 26.Na6 Ba6 27.Bc6! Ra8 28.Bd5 Qe7 29.Qb4 Rac8 30.Rd2 Rc5 31.Bf3 Qe5 32.Rad1 Rfc8 33.Rd5 Rc1?? 34.Kg2 Kg7 1–0. Ubilava,Elizbar (2560) – Doncevic,Dario (2355), Palma de Mallorca op, 1992. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

11.b5 Qh4 12.g3 Qh3 13.f4 Bg7 14.Qd2 Be6 15.0-0-0 Nd7 16.Ne4 Qh6 17.g4 Bb2 18.Qb2 Qg7 19.g5 Qb2 20.Kb2 Rae8 21.Ng3 Bh3 22.Bf3 Re3 23.Bb7 Nc5 24.Bc6 Nd3 25.Ka1 Nf4 26.Ne4 Kg7 27.Nf6 Be6 28.Rhe1 Re1 29.Re1 Nd3 30.Re4 Rc8 31.Bd5 Nc5 32.Rh4 h5 33.Kb2 Kf8 34.Kc3 Ke7 35.Bc6 Na4 36.Kd4 Rf8 37.Re4 Kd8 38.Bd5 Nc5 39.Re3 Bd7 40.h4 a4 41.Rf3 Bf5 42.Bc6 Rh8 43.Ra3 Rf8 44.Kc3 Ke7 45.Kb4 Kd8 46.Re3 Bc2 47.Rf3 Bd1 48.Re3 Bc2 49.Ka5 Bb1 50.a3 Bf5 51.b6 cb6 52.Kb6 Be6 53.Bb5 Kc8 54.Nd5 Bd7? 55.Ne7 Kd8 56.Nc6 Bc6 57.Kc6 f5 58.Kd6 Ne4 59.Ke5 Kc7 60.Ba4 Kb6 61.Bc2 Nc5 62.Kd6 Rd8 63.Ke7 Rd4 64.Rc3 Rh4? 65.Kf6+- Rg4 66.Kg6 Ne6 67.c5! Nc5 68.Bf5 Rf4 69.Bh3 h4 70.Kh5 Ne4 71.Rb3 Ka5 72.g6 Ka4 73.Re3 Nf6 74.Kg5 Rf2 75.Bf5 Nd5 76.Bd7 Ka5 77.Re5 Rg2 78.Bg4 h3 79.Rd5 Ka4 80.Rd8 1–0. Krnic,Zdenko (2380) – Sarenac,Ivan (2340), Belgrade–chT, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4 8.Nc3 Ne5 9.Ne5 Be5 10.Be2 a5)

9.Be2 A) 9...a5 10.b5 (10.ba5 Nbc6 11.0-0 Na5 12.Ne5 de5 13.Rd1 Qh4 14.Qc3 Bg4 15.Bg4= –0.09) 10...Be6 11.c5 Qe7 12.cd6 cd6 13.0-0 Rc8 14.Rd1 Nbd7 15.Bd4= 0.16; B) 9...Nbd7 10.Ne5 (10.0-0 Nf3 11.Bf3 Ne5 12.Be2 Qh4 13.f4 Ng4 14.Bg4 Bb2 15.Qb2= 0.00) 10...de5 11.0-0 Qh4 12.Nc3 Rd8 13.Rfd1 c6 14.Qc2 a5 15.b5+= 0.34; C) 9...Nbc6 10.0-0 (10.Ne5 de5 11.b5 Qd2 12.Nd2 Nb4 13.0-0-0 Na2 14.Kc2 Nb4 15.Kb3+= –0.34; 10.Nd4 Qg5 11.Nc6 bc6 12.g3 Qf6 13.a3 Bg4 14.Bg4 Nd3 15.Qd3+= –0.41) 10...Nf3 11.Bf3 Ne5 12.Be2 Qh4 13.Na3 Re8 14.f4 Ng4 15.Bg4= 0.09; D) 9...Be6 10.Ne5 (10.Na3 Qf6 11.Nd4 a5 12.ba5 Qg5 13.Ne6 Qg2 14.Qd5 Qd5 15.cd5+= –0.28; 10.c5 Nbc6 11.Ne5 de5 12.b5 Qd2 13.Nd2 Nb4 14.0-0 Rfd8 15.Rfd1+= –0.28) 10...de5 11.0-0 Qe7 12.Bc3 c5 13.Qb2 Qc7 14.Rd1 Nd7 15.Na3= 0.03.

9.Ne5 de5 10.Bd3 Qe7 11.0-0 Rd8 12.Qc3 f5 13.c5 Be6 14.Bc4 Bc4 15.Qc4=.

9.Ne5 Be5 10.Be5 (10.Bd3 Nc6 11.0-0 Be6 12.Na3 Qh4 13.Be5 Ne5 14.Be2 Rfe8 15.Rad1=) ½–½. Kempinski,Robert (2550) – Fedorov,Alex (2600), 4th IECC, Istanbul TUR, 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.a3 Nce5 10.Ne5 Ne5 11.Be2 Nd3 12.Bd3 Bb2 13.Ra2 Bg7 14.0-0 Be6 15.Qc2 d5 (15...a5 16.b5=+) 16.Nf3 (16.cd5 Qd5 17.Bc4 Qc6=+) 16...c6 (16...a5 17.Qb3=+) 17.Rd1 a5 18.Qe2? (18.c5!?=+) 18...dc4 (18...ab4 19.ab4 Ra2 20.Qa2 dc4 21.Be2-+) 19.Bg6 Qf6 (19...Qe7 20.Bb1-/+) 20.Bb1-/+ ab4 (better 20...c3!? 21.Rc2 ab4 22.ab4 Bg4-/+) 21.ab4=+ b6 (21...c3 22.Ra8 Ra8 23.Qd3=) 22.h3 (22.Nd4 Bd5=) 22...c5 (22...Qe7 23.Nd4 Bd4 24.Rd4 Ra2 25.Ba2=) 23.bc5 bc5 24.Ra8 (24.Qc2 Qh6=) 24...Ra8 25.Rc1 (25.Qd2 h6=) 25...Qb2=+ 26.Qb2 Bb2 27.Rd1 Ra1 28.Bc2 Rd1 29.Bd1 c3 30.Ne1 Kg7 31.Bc2 Kf6 (31...f5 32.Nd3=+) 32.Kf1 (32.Bh7 Kg7 33.Bc2 Ba3=) 32...h6=+ 33.Ke2 c4 (33...Bc4 34.Kd1=+) 34.f3 (34.f4 Ba3=) 34...h5 35.g4 Kg5 (35...Bd7 36.Bb1=+) 36.gh5 (36.f4 Kh6=) 36...Kh5 (36...Bh3 37.Ba4=+) 37.e4 (37.Ng2 Bd7=+) 37...Kh4 (37...Bh3 38.Bd1-/+) 38.Ke3 (38.Ng2!? Kg3 39.Ne3=+) 38...Kh3 39.Kf2 Kh2 (39...Ba3!? 40.Ng2 Bc5 41.Ne3 Kh4-/+) 40.Ng2 (40.f4 Kh3 41.f5 Bc8=+) 40...Bc1 (40...Ba3 41.Nf4 Bc5 42.Ke2-/+) 41.Ne3=+ Be3 (41...Kh3 42.f4=+) 42.Ke3= Kg3 43.f4 f6 44.f5 Bf7 45.Bb1 Kg4 46.Bc2 Kg3 47.Kd4 Kf4 48.Kc3 (48.Bb1 Bh5=) 48...Ke3 (48...Ke5 49.Bb1=+) 49.Bb1= Ke2 50.Kd4 Kd2 51.e5 fe5 52.Ke5 c3 53.Kf6 Ba2 54.Be4 (54.Ba2 c2 Passed pawn) 54...Bd5 55.Bb1 (55.Bd5 c2 Passed pawn) 55...Kd1 56.Ke5 Ba2?? (56...Kc1 57.Kd4=) 57.Be4 (57.Ba2 Kc2 58.Bd5 Kd2 59.Be4 c2 60.Bc2 Kc2 61.f6 Kd2 62.f7 Kc3 63.f8Q Kc4 64.Qf1 Kb4 65.Kd4 Kb3 66.Qb1 Ka4 67.Kc4 Ka5 68.Qb5) 57...Kd2 58.f6 c2 59.Bc2 Kc2 60.Kd6 Kd3 61.Ke7 Ke4 62.Ke8 Bd5 63.f7 Bf7 ½-½. Mr_strange (2295) - Lance5500 (2390), lichess.org, 2018. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.d4 d6 6.c4 e5)

9.Qb3 de5 10.b5 Nb8 11.h3+/-.

9.Qb3 Nge5 10.b5 Nf3 11.Nf3 Ne5 12.Ne5 Be5 13.Be5 de5 14.Be2 Qe7 15.0-0 a5 16.Qc3 Qc5 17.Bf3 c6 18.a4 Be6 19.Rfc1 f5 20.bc6 bc6 21.Rab1 Rab8 22.h4 Rb4+= 23.Rb4 ab4 24.Qb2 Rb8 25.Bd1 Rd8 26.h5 Kf7 27.h6 Kf6 28.Bb3 Kg5–/+ 29.Ra1 Ra8 30.Rd1+= Kh6 31.Qd2 Bf7 32.e4 f4 33.g3 Qe7 34.gf4 ef4 35.Qf4 Qg5 36.Qg5= Kg5 37.f4 Kg4 38.Rd6 c5 39.Bd1 Kh4 40.Bb3 Be8-+ 41.Rd5 Ba4 42.Ba4 Ra4 43.Rc5 Kg3 44.Kf1 b3 45.Rb5 Rc4 46.f5 Rc3 47.Ke2 Kf4 48.Kd2 Re3 49.f6+= Re4 50.Rb3? Re8-+ 51.Rb7 h5 52.Rb6 Kg5 53.Kd3 Rf8 54.Ke4 Rf6 55.Rb1 h4 56.Rg1 Kh5 57.Ke3 g5 58.Rh1 g4 59.Ra1 h3 60.Ra8 Kh4 0–1. Loncar,R (2435) – Pomaro,A (2275), Open, Pula CRO, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.b5 Nce5 10.Ne5 (10.Bd4 a6=) 10...Ne5+= 11.a4 (11.Be2 Qg5 12.Be5 A) worse is 12...Be5 13.f4 Bf4 14.Nf3 (worse is 14.ef4 Qg2 15.Rf1 Qh2=) 14...Qg2 15.Rg1+=; B) 12...Qe5+=) 11...Re8 12.Qc2 (12.Be2 Qg5 13.Be5 Qe5+=) 12...Bf5 13.e4 Be4 14.Ne4 f5 15.Nd6?? (better is 15.Be2 fe4 16.Qe4+=) 15…Nf3 (15...Nf3 16.Kd1 Re1#; 15...cd6?! 16.Be2+=) 0–1. Nicklich,Wolfgang – Olsson,Sture, corr, 1973.

9.Be2 a5 10.b5 Nce5=.

9.h3 Nge5 10.Ne5 Ne5 11.Qb3 Be6 12.Be2 f5 13.0-0 f4 14.ef4 Rf4 15.Be5 Be5 16.Rae1 Qf6 17.Nf3 Rf8 18.Ne5 de5 19.Qe3 Bc4 20.Bc4 Rc4 21.a3 e4 22.Qa7 Rc3 23.Re4 Qc6 24.Qd4 Ra3 25.Re7 Rf7 26.Rfe1 Qf6 27.Qd8 Rf8 28.Qd5 Kh8 29.Qe5 Qe5 30.Rh7 1–0. slave81 (1935) – dors (1770), kurnik, 2012.

9.0-0 Nb4 10.Qb3 Nc6 (10...Na6 11.Qa3=) 11.ed6+= Bb2 (11...Na5 12.Qa3 Qd6 13.c5 Bb2 14.cd6 Ba3 15.Na3 cd6 16.Nb5=) 12.Qb2 Qd6 13.Nc3 (13.Rd1!? Qf6 14.Nc3+/-) 13...Nce5= 14.Ne5 Qe5 (worse 14...Ne5 15.Rfd1 Qf6 16.Rd2+/-) 15.Bg4 Bg4 16.h3 (16.Rab1!?+=) 16...Be6= 17.Qb3 c6 18.a4 b6 19.Rac1 Rfd8 20.Ne2 (20.Rfd1 Rab8=) 20...c5=+ 21.Nf4 Rd2 22.Rcd1 Rad8 (22...Rb2 23.Qd3=+) 23.Rd2= Rd2 24.a5 ba5 25.Qb5 Rc2 The isolani on c4 becomes a target (25...Ra2 26.Ne6 Qe6 27.Qc5=) 26.Qe8 Kg7 27.Rb1 Kh6 (27...Qd6!?=) 28.Qf8+= Kg5?? (better 28...Qg7 29.Qc5 Rc4 30.Qa5 Qc3 31.Qa7 Rc7+/-) 29.h4+- Kf5 (29...Kg4 30.Qa8 Rf2 (30...Bc4 31.Qf3 Kf5 32.Nd3 Ke6 33.Ne5 Rf2 34.Kf2 Ke5 35.Rd1 f5 36.Qc6 Bd3 37.Rd3 h6 38.Kf3 a4 39.Qd6) 31.Kf2 Kh4 32.Rh1 Kg4 33.Qf3 Kg5 34.Ne6 fe6 35.Rh7 a4+-) 30.Qh6 (better 30.Qd8 h6 31.g4 (31.Qa5?! Rc4 32.Qa7 Qf6+=) 31...Kg4 32.Qd1 Kf5 33.Qc2 Qe4 34.Qe4 Ke4 35.Ne6 fe6 36.Rb5+-) 30...Ke4?? (30...Kg4 31.Nd3 Qf6+-) 31.Re1 (31.f3 Ke3 32.Ng6 Kd4 33.Ne5 Rg2 34.Kg2 Ke5 35.Rd1 Bc4 36.Qe3 Kf6 37.Rd6 Kg7 38.Qg5 Kf8 39.Rd8) 31...Qf6 (31...Qc3 32.Rd1 Rf2 33.Nd3 Rf1 34.Kf1 Bc4 35.Qf4 Kd5 36.Qf7 Kd6 37.Qf4 Kd5 38.Qf3 Kd6 39.e4+-) 32.Qf8 (better 32.f3 Ke5 33.Qf8 Qf4 34.ef4 Kd4 35.Re4 Kc3 36.Qc5 Rc1 37.Kh2+-) 32...Rd2 (32...Rf2 33.Qa8 Kf5 34.Kf2 Qh4 35.g3 Qh2 36.Kf3+-) 33.Qc5 (33.f3 Kf5 34.g4 Ke5 35.Qb8 Rd6 36.Nd3) 33...Qe5 (33...Bg4 34.Rf1 Bf3 35.Qa7 g5 36.Qa8 Kf5 37.Qa5 Rd5 38.Nd5 Bd5 39.Qd5 Kg6 40.Qg5 Qg5 41.hg5 Kg5+-) 34.f3 Kf5 35.g4 (35.Qe7 Rg2 36.Ng2 Qh2 37.Kh2 h6 38.e4 Ke5 39.Rd1 a4 40.Rd5) 35...Kf6 36.Qf8 (better 36.g5!? Kf5 37.e4 Kf4 38.Qe3 Kg3 39.f4 Kh4 40.fe5 Rc2+-) 36...Qb2 (36...Qc7 37.e4 Ke5+- (37...Qf4?? 38.e5 Qe5 39.Qh8 Ke7 40.Qe5+-)) 37.g5 Kf5 38.Qc5 Bd5 (38...Qe5 39.e4 Kf4 40.Qe3 Kg3 41.f4 Kh4 42.fe5 Rb2+-) 39.cd5 (39.Nd5?? Rg2 40.Kh1 Rh2 41.Kg1 Qf2) 39...Qb6 (39...Qf6 40.Qc8 Ke5 41.Qb8 Qd6 42.Qe8 Qe6 43.de6 Kd6 44.Qb8 Ke7 45.Qc7 Ke8 46.ef7 Kf8 47.Ne6) 40.Qb6 (40.Qe7 Rd4 41.ed4 Qd4 42.Kg2 Qd2 43.Kh3 Qg2 44.Kg2 Kf4 45.Qf7) 40...ab6+- 41.Ng2 (better 41.Rb1 a4 42.Rb6+-) 41...b5 (41...Ke5 42.e4+-) 42.e4 Ke5 43.f4 Kd6 44.e5?? (better 44.Ne3 a4 45.e5 Ke7 46.Rb1+-) 44...Kd5+/- 45.f5 gf5 46.Nf4 (46.h5 Ke6 47.Nf4 Ke7 48.e6+-) 46...Kd4? (46...Kc6!?+=) 47.e6+/- Rd1?? (47...fe6 48.Ne6 Kc4+-) 48.Ne2 (48.Rd1 Kc4 49.ef7 b4 50.f8Q h5 51.Qf5 a4 52.Rc1 Kb3 53.Qc2 Ka3 54.Ra1) 48...Ke3 (48...Kc4 49.e7 Re1 50.Kf2 Rh1+-) 49.Rd1 Ke2 50.Rf1 f4 51.e7 f3 (51...Kd3 52.e8Q Kd2 53.Qd7 Kc2 54.Rf2 Kc3 55.Rf3 Kc2 56.Qb5 Kc1 57.Rf2 a4 58.Qf1) 52.e8Q Kd3 53.Qe5 Kc4 (53...f2 54.Kf2 f6 55.Qb5 Ke4 56.Rd1 fg5 57.Qc5 gh4 58.Rd4) 54.Qf4 (54.Rc1 Kd3 55.Kf2 a4 56.Qd5) 54...Kb3 (54...Kc5 55.Qc7 Kd4 56.Rd1 Ke4 57.Qc5 Kf4 58.Rd4 Kg3 59.Qc7 Kh3 60.Qh2) 55.Qf3 (55.Rf3 Kc2 56.Qh2 Kd1 57.Rf1) 55...Ka4 (55...Kc4 56.Qe4 Kc3 57.Rf3 Kd2 58.Qd3 Kc1 59.Rf2 a4 60.Qc2) 56.Qf4 (56.Rb1 b4 57.Qd5 b3 58.Qb3) 56...b4 57.Qf5 (57.Qc4 Ka3 58.Ra1 Kb2 59.Ra2 Kb1 60.Qc2) 57...Ka3 (57...h6 58.Qd5 b3 59.Qc5 b2 60.Qc4 Ka3 61.Rf3) 58.Qf6 (58.Rf2 a4 59.Qf7 b3 60.Qe7) 58...b3 (58...Kb3 59.Qd4 Ka3 60.Rb1 Ka4 61.Qd5 b3 62.Qb3) 59.Qf7 (59.Qc3 Ka4 60.Rf5 b2 61.Ra5) 59...a4 (59...Kb2 60.Qd7 Kc3 61.Rc1 Kb4 62.Qd6 Ka4 63.Rc4 Kb5 64.Qc6) 60.Qb7 (60.Qc4 Kb2 61.Rf2 Ka3 62.Qc5) 60...Ka2 (60...Kb2 61.Qc6 Ka2 62.Qc3 b2 63.Qc4 Ka3 64.Rf3) 61.Qa6 (61.Rf2 Kb1 62.Qb4 a3 63.Qe1) 61...b2 (61...Ka3 62.Qc4 Kb2 63.Rf2 Ka3 64.Qc5) 62.Qa4 1-0. Chess_Network (2505) - Lance5500 (2520), lichess.org, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5)

9.0-0 de5 10.b5 Nb8 11.h3+/-.

9.0-0 Nge5 10.Ne5 Ne5 11.Nc3 Be6 12.Qb3 Qh4 Will c4 fall? 13.Nd5 Rac8 14.g3 Qd8 15.Rfd1 c6 16.Nf4 Qe7 17.Ne6 Qe6 (17...fe6 18.f4 Nf7 19.Bg7 Kg7 20.Qc3 e5 21.Rf1=) 18.Rd2+= Rcd8 19.Rad1 h5 (19...Rfe8 20.f4 Ng4 21.Bg7 Kg7 22.e4+=) 20.b5+- Rfe8 21.Be5 Be5 22.Qa4 h4 23.bc6 hg3 24.hg3 Bg3? (24...bc6 25.Bf3 c5 26.Qa7 Kg7+- (26...Qc4?? 27.Bd5 Qd5 28.Rd5+-)) 25.fg3+- Qh3 26.Bf1 (better 26.Kf2!? Re5 27.Bf3 Qh2 28.Kf1 Qg3+-) 26...Qg3 27.Bg2 bc6 (27...Qe3 28.Rf2 bc6 29.Qc6+-) 28.Qa7 Ra8 29.Qd4 Re3 30.Rf2 (30.Qd6 Re1 31.Re1 Qe1 32.Bf1 Qe3 33.Kg2 Qe4 34.Kf2 Re8+-) 30...Rae8 31.Rdf1 (31.Kf1 c5 32.Qf4 (32.Qd6?? Qd6 33.Bd5 Qg3-+) 32...Qf4 33.Rf4+-) 31...R3e4? (better 31...f5!?+-) 32.Qf6+- R8e7 (32...Rf8 33.Rf3 Qh4 34.Qg6 fg6 35.Rf8 Kg7 36.R1f7 Kh6 37.Rh8 Kg5 38.Rh4 Rh4 39.Bc6 Rc4 40.Bb5+-) 33.Rf3 (33.Rb2 Qe3 34.Rff2 Qc1 35.Bf1 Qe3 36.Rb8 Re8 37.Qf7 Kh8 38.Qf6 Kh7 39.Rb7 Kh6+-) 33...Qg4?? (better 33...Qe5 34.Qe5 R7e5 35.Rf7 Rc4+-) 34.Rh3 (34.Rh3 Qh3 35.Bh3+-; 34.Qd6?! Re2 35.Rg3 Qc4 36.Bc6 Kg7+-) 1–0. Dolezal,Radoslav (2350) – Spirin,Oleg (2480), Czech Championship Zapad, 2014. (=1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b4 0-0 5.Bb2 d6 6.c4 e5 7.de5 Ng4 8.Be2 Nc6)

9.a3 de5 10.Qd8 Rd8 11.h3+=.

9.a3 Nce5 10.Ne5 Ne5 11.Qc2 Bf5 12.e4 Be6 13.Nd2 c5 (13...Qf6 14.Rb1=+) 14.bc5= dc5 15.Rd1 (15.0-0=) 15...Qa5 (15...Nd3! 16.Bd3 Bb2=+) 16.0-0= Bd7 17.Nb3 Ba4 18.Na5 (18.Rd5!? Qb6 A) worse 19.Re5 Bb3 (19...Qb3?! 20.Qb3 Bb3 21.Rc5=) 20.Qc3 Rad8-/+; B) 19.Be5 Be5 20.Re5 Bb3 21.Qc3=) 18...Bc2= 19.Rd5 (worse 19.Nb7 Bd1 20.Rd1 Rfb8 21.Be5 Rb7-/+ (21...Be5?! 22.Nc5 Bg7 23.Nd7=+)) 19...Rfe8 20.Be5 Be5 21.Bf3 b6 22.Nc6 f6 23.Ne5 (23.g3 Ba4 24.Ne5 Re5=) 23...Re5=+ 24.Re5 (24.Rc1 Ba4=+) 24...fe5-/+ 25.Rc1 Ba4 (25...Bd3 26.Rd1 Bc4 27.Rd7-/+) 26.Kf1 Rd8 27.Ke2 Kf7 28.Ke3 Ke7 29.Be2 Rd4 30.f3 Kd6 31.Rc3 a6 (31...Bc6 32.Rc1=+) 32.h4= h6 33.g4 g5 34.hg5 hg5 35.Rc1 b5 36.cb5 (36.Bf1 Kc6=+) 36...Bb5 (36...ab5 37.Rh1=+) 37.Bb5= ab5 38.Rb1 Kc6 Black prepares b4 39.Rh1 Ra4 40.Rh6 Kc7 41.Re6 Ra3 42.Ke2 b4 43.Re5 Kc6 44.Rg5 Rc3 45.Rg6 Kb5 46.e5 b3 47.Kd2?? (47.e6 Kc6=) 47...Rf3 (better 47...b2 48.Kc3 b1Q-+) 48.e6= Rf8 49.e7 Re8 50.Re6 Kc4 51.g5 Kd4?? (better 51...Kd5 52.Re3 Kd6=) 52.g6+- c4 53.g7 c3 54.Kc1 Ra8 55.Kd1 (55.Kb1 b2 56.Kc2 Rb8+-) 55...Kd3 56.Rd6 Ke3 57.Re6 Kf3?? (57...Kd3 58.Rd6 Ke3+-) 58.Rf6+- Ke3 59.Re6 (better 59.e8Q Re8 60.Rf8 Rf8 61.gf8Q+-) 59...Kf3?? (59...Kd3 60.Rd6 Ke3 61.Ra6+/-) 60.Rf6 Ke3 61.Ra6! Ra6?? (61...Rb8 62.Re6 Kd3 63.Rd6 Ke3+/-) 62.e8Q Kd3 (62...Kf4 63.Qf8 Ke4 64.Qb4 Kd5 65.g8Q Ke5 66.Qg5 Ke6 67.Qbe7) 63.Qd7 (63.Qe2 Kd4 64.Qa6 b2 65.Qb6 Kd3 66.Qg6 Ke3 67.g8Q b1R 68.Qb1 c2 69.Kc2 Kf3 70.Qd1 Ke3 71.Qgd5 Kf4 72.Q1f3) 63...Kc4 (63...Ke3 64.Qe7 Kd4 65.Qb4 Kd5 66.g8Q Ke5 67.Qg5 Ke6 68.Qbe7) 64.Qc8 (64.g8Q Kb4 65.Qb7 Rb6 66.Qb6 Ka3 67.Qgb3) 64...Kb5 (64...Kd3 65.Qa6 Kd4 66.g8Q c2 67.Kd2 c1B 68.Kc1 b2 69.Kb2 Ke4 70.Qac4 Kf3 71.Qgg4 Ke3 72.Qgf4) 65.Qa6! Ka6 66.g8Q Kb5 67.Qb3 (67.Qb3 Ka6 68.Qb4 Ka7 69.Qg4 c2 70.Kc2 Kb7 71.Qd7 Kb8 72.Kd3 Ka8 73.Kd4 Kb8 74.Kc5 Ka8 75.Kc6 Kb8 76.Qb7) 1-0. Mr_strange (2035) - Lance5500 (2460), lichess.org, 2017. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.d4 0-0 6.c4 e5)

9.Qb3 Nce5 10.Ne5 Ne5 11.0-0 a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 Re8 15.Nc3 Be6 16.Nd5 c6 17.Nf4 Bf5 18.Rd1 Qe7 19.Bd4 Ng4 20.Bg7 Kg7 21.Qc3 Qe5 22.Qd2 Rd8 23.Bd3 Bd3 24.Qd3 h5 25.Qd2 h4 26.h3 Nh6 27.Nd3 Qf6 28.Nc5 Qe7 29.Qd4 f6 30.Nb3 Nf5 31.Qf4 Qe5 32.Qe5 fe5 33.e4 Nd4 34.Nd4 ed4 35.Rd4 Kf6 36.f4 Ke6 37.c5 d5 38.Rd2 Ra8 39.ed5 cd5 40.Re2 Kf5 41.Re5 Kf4 42.Rd5 Ra1 43.Kf2 Ra2= 44.Kf1 Rb2 45.Rd6 Rb4 46.Rg6 Ke3 47.Rb6 Rc4 48.Rb3 Kf4 49.Rb7 Rc5 50.Rg7 Ke3 51.Kg1 Rc4 52.Kh2 Ra4 53.Rf7 Ra8 54.Rf5 Ra7 55.Re5 Kf2 56.Re4 Rh7 57.Re5 Rg7 58.Rf5+/- Ke3 59.Rh5 Kf2= 60.Kh1 Kg3?? 61.Rf5 (61.Rf5 Rf7 62.Rg5 (62.Rf7?!) 62...Kf2 63.Rg4+-) 1–0. Machelett,Heiko (2435) – Ott,Frank (2240), Bad Woerishofen op, 1999. (=1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.e3 e5 7.de5 Ng4 8.Be2 Nc6)

9.Qb3 Nge5 10.0-0 Re8=.

9.Qb3 Nge5 10.Nbd2 a5 11.b5 a4 12.Qa3+=.

9.Qb3 Nge5 10.Nbd2 Be6 11.Nd4 Nd4 12.ed4 Nc6 13.d5 Nd4 14.Bd4 Bd4 15.Rd1 Bd7 16.Nf3 Bg7 17.0-0 Re8 18.Rfe1 Qf6 19.Bf1 Qc3 20.Re8 Re8 21.Qc3 Bc3 22.b5 h6 23.Rd3 Bb4 24.Re3 Kf8 25.Re8 Ke8 26.Bd3 Bc3 27.Kf1 c6 28.bc6 bc6 29.Ke2 Kd8 30.Ke3 cd5 31.cd5 Kc7 32.Nd4 Kb6 33.Nc6 Bf6 34.Be4= a6 35.h3 Bc8 36.g4 Kc5 37.f4 Bb2 38.f5 gf5 39.gf5 Bf6 40.Kd3 Kb6 41.Ke3 a5 42.a4 h5 43.Bd3 Bd7 44.Ke4 h4 45.Be2 Bc3 46.Bh5 f6 47.Be2 Kc5 48.Bf3 Be8 49.Kd3 Bb4 50.Ke4 Bf7 51.Ne7= Be1 52.Kf4 Be8 53.Nc6 Kc4 54.Ke4 Kb3 55.Bd1 Ka3 56.Kd4 Bd7 57.Bc2 Kb2–/+ 58.Bd3 Kb3 59.Bb1 Bc3 60.Ke3 Ka4 61.Bc2 Kb5 62.Ne7 Kc5 63.Ng6 Be1 64.Nf4 Bg3 65.Ne2 Be5 66.Ke4 a4 67.Nc1 Kb4 68.Nd3 Kc3 69.Bb1 Bb5 70.Ne5 de5 71.d6 Bc6 72.Ke3 a3 73.Ba2 Kb2 74.Bd5 a2 75.Bc6 a1Q (75...a1Q 76.d7 Qd1-+) 0–1. Kaeding,R (2150) – Eichhorn,An (2330), Bad Wiessee GER, 2013. (=1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.b4 0-0 5.Bb2 d6 6.e3 e5 7.de5 Ng4 8.Be2 Nc6)

9.Qb3 Nge5 10.Nbd2 Re8 11.0-0 Qe7 (11...Qf6 12.Ne5 Ne5 13.Rab1=) 12.Rac1 (12.b5 Nf3 13.Nf3 Ne5+=) 12...Be6 (12...a5 13.b5 a4 14.Qa3 Nf3 15.Nf3 Bb2 16.Qb2+=) 13.Nd4 (13.b5 Na5 14.Qa3 Nf3 15.Bf3 Bb2 16.Qb2 a6+/-) 13...a5= 14.b5 Nd4 (14...a4 15.Qc3 Nd4 16.ed4=) 15.ed4 Ng4 16.Qg3 (16.h3 Nh6 17.Rfe1 a4+=) 16...Nf6 (16...Nh6 17.Rfe1=) 17.Bd3 (17.Rfe1 d5+=) 17...Bh6 (17...d5 18.c5=) 18.f4 (18.Rc2 d5 19.Bc1 Nh5+=) 18...Nh5+= 19.Qe3 Qh4 (19...d5!?+=) 20.g3+= Qh3 (better is 20...Qd8 21.Qf3 d5+=) 21.Qf3 (better is 21.Rfe1!?+=) 21...Bg4+= 22.Qg2 (22.Qb7 Nf4 23.gf4 Qd3 24.Rf2–/+) 22...Qg2 (better is 22...Nf4!? 23.gf4 Qd3 24.Qg4 Qd2–/+) 23.Kg2= Be2 24.Be2 Re2 25.Rf2 Rae8 26.Kf1 R2e3 27.Bc3 (27.Nb3 b6=) 27...Nf6 28.Ba5 (28.Rf3!? Re2 29.Rf2= (worse is 29.Ba5 Rh2 30.Rb1 Ng4–/+)) 28...Ng4–/+ 29.Rg2 (29.Nb3 Nf2 30.Kf2 Re2 31.Kg1 Ra8-+) 29...Ra3 30.Nb3 (better is 30.Bb4!? Ra4 31.Re1 Re1 32.Ke1–/+) 30...Ne3-+ 31.Kg1 Ng2 32.Kg2 Ra2 (32...Re2 33.Kf3 Rea2 34.Rb1 Ra5 35.Na5 Ra5 36.Ke4-+) 33.Kf3 Rae2 34.Rc3 b6 (34...b6 35.Bb4 Rh2-+) 0–1. Fletcher,J – Lodge,D, corr BCCA, 1967.

9.b5 Nce5 10.Ne5 Ne5 11.Qb3 Be6 (11...Qg5 12.g3 Bg4 13.f4+=) 12.Nd2 c6 (12...Qh4 13.0-0=) 13.a4 (13.f4 Nd7=) 13...a6 (better is 13...Qg5 14.g3 Qe7=) 14.Nf3?? (better is 14.f4 Ng4 15.Bg7 Kg7 16.Qc3 Qf6 17.Qf6 Kf6 18.Bg4 Bg4 19.h3=) 14...ab5 15.Ne5 de5 (15...Be5!? 16.Be5 de5–/+) 16.ab5+= Ra1 17.Ba1 Qa5 18.Bc3 Qb6 19.Qa3 cb5 20.cb5 Rc8 21.0-0 Qc5 22.Bb4 Qc2 23.Bd3 Qa2 24.Qa2 Ba2 25.Be4 b6 26.Bc6 Rd8 27.g3 Bf8 28.Bf8 Kf8 29.Ra1 Rd2 30.h4 Ke7 31.Rc1 Kd6 32.Bg2 Bd5 33.Bd5+= Kd5 34.Rc6 Ke4 35.Kg2+/- f5 36.Rb6 f4 37.ef4 ef4 38.Re6 Kd5 39.Re7+- fg3?? 40.Rd7 Kc5 41.Rd2 Kb5 42.fg3 Kc4 43.Rd7 h6 44.Rd6 g5 45.Rh6 g4 46.Rg6 Kd4 47.Rg4 Ke3 48.Rf4 (48.Rf4 Kd2 49.h5 Ke2 50.h6 Kd2 51.h7 Kc2 52.h8Q Kb3 53.Qg8 Ka3 54.Qb8 Ka2 55.Ra4#; 48.h5 Kd3 49.h6 Kc3 50.h7 Kd3 51.h8Q Kc2 52.Rc4 Kd3 53.Qc3 Ke2 54.Re4 Kd1 55.Re1#) 1–0. bluepiramid2 (1750) – supersz (1645), kurnik, 2012.

9.b5 Nce5 10.Ne5 Ne5 11.Nc3 Be6 12.Qb3 a6 13.0-0 ab5 14.Nb5 c6 15.Nd4 Bc8 16.Rfd1 Qe7 17.Rd2 Re8 18.Rad1 Nd7 19.Ba3 Nc5 20.Bc5 dc5 21.Nf3 Qc7 22.h3 Qa5 23.Nh2 h5 24.Nf3 Bf6 25.Bd3 Qb4 26.Rb1 Ra3 27.Qc2 Rc3 28.Qd1 Qa5 29.Rb3 Kg7 30.Rc2 Rc2 31.Qc2 Qc7 32.Qb1 Rd8 33.Bc2 Qd6 34.Rd3 Qe6 35.Rd8 Bd8 36.Bd3 Qd6 37.Be2 Bc7 38.Qb2 Qf6 39.Qf6 Kf6 40.Bd3 Ba5 41.Kf1 Bd7 42.a4 Ke7 43.Ke2 Bb4 44.Kd1 Be8 45.Kc2 Kd6 46.Ng5 Kc7 ½–½. Kaenel,Hansjuerg – Ekstrom,Roland, Switzerland ch, 1995. (=1.Nf3 g6 2.d4 Bg7 3.e3 Nf6 4.c4 0-0 5.b4 d6 6.Bb2 e5)

9.Nc3 Nge5 10.Ne5 Ne5 11.0-0 Be6 12.Qb3 Re8 13.Rad1 a5 14.ba5 Ra5 15.Nb5 b6 16.Bc3 Ra8 17.Be5 Be5 18.f4 Bg7 19.Bf3 Ra5 20.Bc6 Bd7 21.Bf3 Re7 22.Rd2 Qc8 23.a4 Bf5 24.Rfd1 Be4 25.Be4 Re4 26.Ra2 Qb7 27.Qd3 Re7 28.Kf2 Ra8 29.Re1 Rae8 30.Ree2 Re6 31.Rac2 R8e7 32.Ra2 Bf6 33.Nd4 Re4 34.Nf3 Qc6 35.Nd2 R4e6 36.a5 ba5 37.Ra5 Qb6 38.Ra8 Kg7 39.Qb3 Qc6 40.Qa4 Qc5 41.Ra5? Re3-+ 42.Rc5 Re2 43.Kg3 Rd2 (43...Rd2 44.h3 dc5-+; 43...dc5?! 44.Nf3-+) 0–1. Chepukaitis,Genrikh – Yudasin,Leonid, St Petersburg, 1997. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5)

9.Nc3 Nge5 10.Ne5 Ne5 11.0-0 Re8 12.Qb3 a5 13.b5 Be6 14.Rad1 c6 (14...Nd7 15.Na4=) 15.Ne4 Bc4 (15...a4 16.Qb4 c5 17.Qe1=) 16.Bc4+= Nc4 17.Qc4 cb5 (17...d5!? 18.Bg7 dc4 19.Rd8 Rad8+=) 18.Qd5 (18.Qb5?! Re4 19.Ba3 Re7=) 18...Bb2 19.Nd6 Ba1?? (better 19...Rf8 20.Qb5 Bg7+-) 20.Qf7+- Kh8 21.Qe8 Qe8 22.Ne8 1–0. DEFFM – GuestDKPQ, freechess.org, 2017.

9.Ne5= de5 10.0-0 Qd1 (10...Qe7 11.Qb3=) 11.Rd1+= (worse is 11.Bd1 Be6 12.Bf3 Nc6+=) 11...Be6 12.Nc3 Nc6 ½–½. Vrhovnik,Damir (2095) – Rukavina,Josip (2410), Pula CRO, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d4 e5 7.de5 Ng4 8.Be2 Ne5)

9.Ne5 de5 10.Nc3 Qd1 11.Rd1+= Be6 (11...c6 12.Ne4+=) 12.Nd5+/- Na6 (12...Bd5!? 13.cd5 Nd7+/-) 13.b5 Bd5 14.cd5 (14.Rd5?! c6 15.Rd6 cb5 16.cb5 Nc5+=; 14.ba6 Bg2 15.Rg1 Bc6-/+) 14...Nb8 15.Rc1 Rc8 (15...a6 16.Rc7 ab5 17.a3+/-) 16.0-0 (16.e4!? Nd7 17.Bg4+-) 16...Nd7+/- 17.e4 f5 18.Rc2 Bh6 19.g3 Bf8 20.a4 (20.f4!? ef4 21.ef5 fg3 22.hg3 Bc5 23.Kg2+-) 20...Bd6 21.a5 (21.f3 fe4 22.fe4 Nc5+=) 21...Nc5 (better 21...fe4 22.Bc1 Nc5=) 22.ef5+/- gf5 23.Be5! Be5 24.Rc5 f4 25.Rfc1 Rf8 (25...Re8 26.Bg4 a6 27.Be6 Kh8 28.b6 cb6 29.ab6+-) 26.Bg4 (26.Rc7 Bc7 27.Rc7 b6+-) 26...fg3 (26...a6 27.Be6 Kh8 28.Rb1+- (28.Rc7?! Bc7 29.Rc7 fg3+=)) 27.hg3 Rad8 (better 27...a6+-) 28.Be6 Kg7 (28...Kh8 29.Rc7 Bc7 30.Rc7+-) 29.Rc7 Bc7 30.Rc7 Kg6 31.Rb7 Rb8 32.a6 Kf6 (32...Rb7 33.ab7 Rb8 34.Bc8+-) 33.f4 (33.Rh7!? Ra8+-) 33...Rb7 34.ab7 Rb8 35.Bc8 Ke7 36.f5 Kd6 37.f6 1-0. Nezad,H (2385) - Beukes,Dante M (2205), Online Olym Div4 B, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d4 e5)

9.Ne5 Be5 10.Be5 de5 11.Qd8 Rd8 12.0-0 (12.Nd2 c5 13.bc5 Na6=) 12...a5 13.b5 Nd7 14.Bf3 (14.Rd1!?+=) 14...Nc5= 15.Bd5 Bf5 16.Nc3 Rd6 (16...Bd3 17.Rfd1=) 17.Rfd1 (17.e4 Be6=) 17...Rad8 18.f3 Kf8 (18...Bd3 19.Rd3 Nd3 20.Ne4–/+) 19.g4 (19.e4 Bd7+=) 19...Bc8 (19...Bd3!?–/+) 20.Kf2 f5 21.h3 c6 (better is 21...Ke7!? 22.gf5 Bf5–/+) 22.bc6+= bc6 23.Bc6 Nd3 (23...Rd1 24.Rd1 Rd1 25.Nd1 Nd3 26.Kg3=) 24.Ke2+/- Rc6 25.Rd3 Rd3 (25...Re8 26.Rd5 Rc4 27.Rc1=) 26.Kd3+/- Ba6 27.Nb5 Ke7 28.gf5 gf5 29.f4 ef4 30.ef4 Rh6 31.Rh1 Bb7 32.Rh2 Rh4 33.Ke3 Rh6 34.Nd4 Be4 35.c5 Kd7 36.c6 Bc6= 37.Nf5 Rf6 38.Nd4+/- Bd5 39.a3 Kd6 40.Rd2 Kc5 41.Nf3 Re6 42.Ne5 Rh6 43.Rc2 Kd6 44.Rh2 Ke6 45.Kd4 Rf6 46.Nd3 Rf8 47.Nc5 Kd6 48.Ne4 Ke6 49.Ng5 Kd6+= 50.Rf2 h6 51.Ne4+- Ke6? 52.Nc3 Bc6 53.Ne4 Rd8 54.Ke3+/- Rb8 55.Nc5 Kf5+= 56.Nd3 Rb3= 57.Kd4 Ra3 58.Ne5 Ra4 59.Kc5 Rf4 60.Rf4 Kf4 61.Nc6 a4 62.Kb4 Kg3 63.Ne5 Kh3 64.Ng6 h5 65.Nf4 Kg4 66.Nh5 Kh5 67.Ka4 ½–½. bluepiramid2 (1725) – funesko27 (1895), kurnik, 2012.

Play 1.b4 at Chessworld.net!

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Available lines:
• 1.b4 (4 players, 1 day/move)
• 1.b4 (4 players, 10 days/move)
• 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
• 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
• 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
• 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
• 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
• 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)