Table of contents:

• (...)
  • 4.a3 Nf6
  • 4.Nc3 c6
  • 4.Nc3 Be6
  • 4.d3 Nf6
  • 4.d4 Nd7
  • 4.d4 Nf6
  • 4.e3 a5
  • 4.e3 a6
  • 4.e3 b6
  • 4.e3 c6
  • 4.e3 Nd7
  • 4.e3 f4
  • 4.e3 Nh6
  • 4.Nf3 Qf6?
  • 4.g3 Nf6
  • 4.h3 Nf6

• 4.a4 Nf6
  • 5.b5 Be7

• 4.Qb3 Nf6
  • 5.e3 Be6
  • 5.e3 g6

• 4.b5 Be6
  • 5.e3 a6
  • 5.e3 Nf6

• 4.b5 Nf6

• 4.Qc2 Nf6

• 4.Nc3 Nf6
  • 5.d3 Be7
  • 5.e3
  • 5.Nf3 Be6
  • 5.Nf3 Be7
    • 6.g3 0-0
      • 7.Bg2 c6
  • 5.g3 Nc6

• 4.c5 Nf6
  • 5.cd6 cd6

• 4.d4 ed4
  • 5.Bd4 Nc6
  • 5.Bd4 Nf6

• 4.d4 e4
  • 5.d5 Nf6

• 4.e3 Nc6
  • 5.b5 Nce7
    • 6.Nf3 Nf6

• 4.e3 e4

• 4.e3 Be6
  • 5.a4 Nf6
  • 5.b5 Nf6
  • 5.Nc3 Nf6
    • 6.Nf3 Be7
  • 5.d3 Nf6
  • 5.d4 ed4
  • 5.d4 Nd7
    • 6.d5 Bf7
  • 5.d4 e4
  • 5.Be2 Nf6
  • 5.Nf3 a5
  • 5.Nf3 Nd7
  • 5.Nf3 Be7
    • 6.d4 e4
      • 7.d5 Bf6
        • 8.Nd4 Bd7
  • 5.Nf3 g6
  • 5.Nf3 h6
  • 5.h4 Nf6=+
  • 5.Qh5 g6

• 4.e3 Qe7

• 4.e3 g6
  • 5.d4 Bg7
  • 5.Nf3 Bg7

• 4.Nf3 Nf6
  • 5.d4 e4
  • 5.e3

4.a3 Nc6 5.b5 Nd4 6.e3 (6.Nc3 Nf6 7.e3 Ne6 8.Nf3 Be7) 6...Ne6 7.Nc3 Be7 8.Nf3 Nf6.

4.a3 Be7 5.Nf3 (5.c5 Nf6 6.Qb3 Nc6 7.Nf3 e4 8.cd6 Qd6) 5...Nf6 6.Nc3 (6.h4 0-0 7.h5 e4 8.Nd4 c5) 6...0-0 7.e3 e4 8.Nd4 c5.

4.Qb3 Be7 5.d4 ed4 (5...Bf6 6.e3 a5 7.Qa4 Bd7 8.b5 Be6) 6.Nf3 (6.e3 Nf6 7.ed4 0-0 8.Nf3 a5) 6...Bf6 7.Nd4 a5 8.a3 Ne7.

4.b5 a6 5.a4 Bd7 6.e3 Nf6 7.d4 ed4 8.Bd4 Be7 9.Nf3 0-0 10.Bd3 d5 11.Ne5 Be8 (11...Be6 12.cd5 Nd5 13.0-0=) 12.Qb3 ab5 13.cb5 Ne4 14.0-0 c6 15.bc6 Nc6 16.Nc6 Bc6 17.Nc3 (17.Ra2 Bf6=) 17...Bd6 (better 17...Nd2 18.Qc2 Nf1 19.Rf1 Qd7-/+) 18.Ne4+= fe4 19.Be4 Kh8 (better 19...Bh2!? 20.Kh2 Qh4 21.Kg1 Qe4+=) 20.Bd3+/- Qh4 21.g3 Qh3 22.Qc2 Rf3 (22...Qh6!?+/-) 23.a5+- Bd7 (23...Rc8 24.a6+-) 24.Qb2 Bc6 (24...Rg8 25.Rfd1 Rf7 26.Bf1+- (26.Qb7 Rf2 27.Bg7 Rg7 28.Qa8 Rg8 29.Qg8 Kg8 30.Bh7 Kh7 31.Kf2 Qh2 32.Kf3 Bg4 33.Kg4 Qg3 34.Kh5 Qf3 35.Kg5 Be7)) 25.Bg7 Kg8 26.Bh8 d4 27.Bc4 Kf8 28.e4 Be4 29.Rfe1 (29.Bd4?? Qg2!? 30.Kg2 Rg3) 29...Bc6 (29...Re8 30.Re4! Re4 31.Qb7+-) 30.Bd4 Rf6 (30...Rf7 31.f4 Qf5 32.Bf7 Qf7+-) 31.Bf1 Qf5 32.Bf6 Qf3 (32...Qd5 33.Be7! Kg8 34.Qa2 Qa2 35.Ra2+- (35.Bd6?? Qd5 36.f3 Qd6-+)) 33.Bg2 (better 33.Be7! Kg8 34.Bc4 Bd5 35.Bd5 Qd5 36.Ra4+-) 33…Qg2 0-1. AsceticKingK9 (1815) - bobby fissure (2095), ChessWorld.net, 2019.

4.b5 b6 5.e3 Be7 6.d4 Bf6 (6...e4!?=) 7.de5+= Be5 8.Be5 de5 9.Qd8 Kd8 10.Be2 (10.Nf3 e4 11.Ne5 Ke7+=) 10...c6 (10...Bb7 11.Nf3 Nd7 12.Nc3=) 11.Nf3+= cb5?? (11...e4 12.Ne5 Nh6 13.Nc3+=) 12.cb5?? (better 12.Ne5!? Be6 13.Bf3+- (13.cb5?! a6+/-)) 12...a6? (better 12...Nd7!?+=) 13.Ne5+/- ab5?? (better 13...Be6+/-) 14.Nf7+- Ke7 15.Nh8 Nh6 (15...Bb7 16.Bf3 Bf3 17.gf3+-) 16.0-0 (better 16.Bf3 Ra5+-) 16...Bb7 17.Nc3 (17.Bb5!? Na6+-) 17...b4 18.Nb5 Nd7 (18...Nc6 19.Nd4+-) 19.Nc7 (19.Rfb1!? Rh8 20.Rb4 Rc8+-) 19...Rh8 20.Bb5 (20.Rfd1 Rc8 21.Rac1 Nc5 22.Nd5 Bd5 23.Rd5 Ra8+-) 20...Nc5 21.Rab1 (21.Rfd1 Rc8 22.Nd5 Bd5 23.Rd5 Ra8+-) 21...Kd6? (21...Rc8 22.Ne8 b3 23.ab3 Re8 24.Be8 Ke8+-) 22.Na6?? (better 22.Ne8 Ke7 23.Rb4+- (23.Ng7?! Rg8+=)) 22...Ba6=+ (worse 22...Na6 23.Rfd1 Ke5 24.Ba6 Ba6 25.Rb4+=) 23.Rbd1 (23.Rb4 Bb5 24.Rb5 Kc7=+) 23...Ke5 (23...Ke6 24.Ba6 Na6 25.Rc1-/+) 24.f4 (24.Ba6 Na6 25.Rd7 Nc5 26.Rg7 Ra8=+) 24...Kf6 (24...Ke6!? 25.Ba6 Na6-/+) 25.Rd6=+ Ke7 26.Rb6 Bb5 (26...Ra8!?=+) 27.Rb5= Nd3 (27...Ne4 28.Rb4 Ra8 29.Rb7 Kf6 30.Rc1=) 28.Rd1 (better 28.Rd5 Nb2 29.Rb1+=) 28...Ng4?? (better 28...Rd8=) 29.Rd3+- Rd8 (29...Rc8 30.Kf1 Nh2 31.Ke2 Ng4+-) 30.Rb7 Ke8 31.Rd8 Kd8 32.Rb4 Ne3 33.a4 Nc2 (33...Kc7+-) 34.Rc4 Ne3 (34...Na3 35.Rc5 Ke7 36.a5+-) 35.Rd4 (better 35.Rc3!? Nd5 36.Rd3 Kc7 37.Rd5 Kc6 38.Rf5 Kb6 39.Rb5 Ka6+-) 35...Ke7 (35...Kc7 36.Rd3 Ng4+-) 36.a5 Nc2 37.Rc4 Na3 (37...Ne3 38.Rc7 Kd6 39.Rb7+-) 38.Ra4 (better 38.Rb4 Kd6 39.a6 Kc5+-) 38...Nb5 39.a6 Na7 (39...Ke6 40.Rb4 Na7 41.Rb7+-) 40.Rb4 Nc6 41.Rb7 Kd6 42.a7 (42.Rg7!? h5+-) 42...Na7 43.Ra7 g6 44.Rh7 Kd5 (44...Ke6 45.Kf2 Kf6+-) 45.Rh6 Ke4 46.Rg6 Kf4 47.h4 Ke4 48.h5 f4 49.h6 Kf5 50.Rg8 (50.Rg8 Ke5 51.h7 Kd6 52.h8Q f3 53.Qd4 Ke6 54.Rg6 Kf7 55.Qf6 Ke8 56.Rg8 Kd7 57.Rg7 Ke8 58.Qe7) 1-0. onikichi – joueetnuit, Rated Classical game, lichess.org, 2014.

4.b5 Nd7 A) 5.e3 A1) 5...a6 6.ba6 (6.d4 Ngf6 7.ba6 Ra6 8.Nf3 Rb6 9.Bc3=; 6.Be2 ab5 7.cb5 Ngf6 8.Nf3 e4 9.Nd4=; 6.Nc3 Ngf6 7.ba6 Ra6 8.d4 Be7 9.Nf3=; 6.Nf3 ab5 7.cb5 Ngf6 8.Be2 e4 9.Nd4=; 6.Qc2 e4 7.d3 Ngf6 8.Nd2 Nc5 9.d4=) 6...Ra6 7.d4 Ngf6 8.Nf3 Rb6 9.Qc2=; A2) 5...e4 6.Ne2 (6.d4 a6 7.ba6 ba6 8.Nc3 Ngf6 9.Nge2=; 6.Nh3 Ngf6 7.d4 Be7 8.Nf4 Nf8 9.Be2=; 6.Nc3 Ngf6 7.Nh3 Ne5 8.d4 ed3 9.Bd3=) 6...Ne5 7.Nf4 Nf6 8.d4 Ng6 9.Ng6+=; A3) 5...Be7 6.Qh5 (6.d4 Ngf6 7.Nd2 0-0 8.Qc2 ed4 9.ed4=; 6.Nc3 Ngf6 7.Qc2 Nb6 8.Nf3 0-0 9.Be2=) 6...g6 7.Qd1 Ngf6 8.d4 ed4 9.Bd4=; A4) 5...Ngf6 6.Be2 (6.d4 Be7 7.Nd2 0-0 8.Qc2 Ng4 9.Rd1=; 6.Nc3 a6 7.ba6 Ra6 8.d4 Be7 9.Nf3=; 6.Nf3 e4 7.Nd4 Nc5 8.Nc3 a6 9.Be2=) 6...Be7 7.Nf3 a6 8.d4 ab5 9.de5=; B) 5.d4 B1) 5...Ngf6 6.Nh3 (6.Nf3 e4 7.Ng5 Nb8 8.e3 Be7 9.Be2=; 6.e3 a6 7.ba6 Ra6 8.Nf3 Rb6 9.Qc2=; 6.Nd2 a6 7.ba6 Ra6 8.e3 Be7 9.Ngf3=) 6...ed4 7.Bd4 Ne5 8.e3 a6 9.Nf4=; B2) 5...a6 6.e3 (6.ba6 Ra6 7.e3 Ngf6 8.Nf3 Rb6 9.Qc2=; 6.Qc2 ab5 7.cb5 Ne7 8.de5 Ne5 9.Nf3=; 6.Nc3 ed4 7.Qd4 Nc5 8.e3 Nf6 9.Be2=; 6.Nd2 ab5 7.cb5 e4 8.Nh3 Ngf6 9.Nf4=; 6.a3 Ngf6 7.ba6 Ra6 8.e3 Be7 9.Qf3=) 6...ab5 7.cb5 e4 8.d5 Ngf6 9.Nh3=; B3) 5...e4 6.e3 (6.Nh3 Ngf6 7.e3 Be7 8.Be2 0-0 9.Nf4=; 6.Nc3 a6 7.ba6 Ra6 8.Nh3 Ngf6 9.e3=) 6...Ngf6 7.Nh3 Be7 8.Be2 Nb6 9.0-0=; B4) 5...f4 6.Qd2 (6.g3 Ne7 7.Nf3 Ng6 8.gf4 ef4 9.Bg2=) 6...Ngf6 7.e3 fe3 8.Qe3 Qe7 9.Nf3=.

4.Qc2 Na6 A) 5.a3 Nf6 6.Nc3 (6.Nf3 Be7 7.Nc3 0-0 8.Qb3 e4; 6.g3 Be7 7.Nh3 0-0 8.Bg2 c5) 6...Be7 7.Nf3 0-0 8.h3 e4; B) 5.Ba3 Nf6 6.Nc3 (6.Qb3 Be7 7.Nc3 0-0 8.Nf3 e4) 6...c5 7.bc5 Nc5 8.Nf3 Qa5.

4.Qc2 Be7 A) 5.Nf3 Nf6 6.Nc3 (6.b5 0-0 7.Nc3 Nbd7 8.e3 Nc5) 6...0-0 7.Nd5 Nc6 8.Ne7 Qe7; B) 5.b5 B1) 5...Nd7 6.Nf3 (6.Nc3 Ngf6 7.Nf3 0-0 8.e3 Nc5; 6.e3 Ngf6 7.Nf3 0-0 8.Nc3 Nc5) 6...Ngf6 7.e3 Nc5 8.Nc3 0-0; B2) 5...Nf6 6.Nc3 (6.Nf3 0-0 7.Nc3 Nbd7 8.e3 Nc5) 6...0-0 7.Nf3 Nbd7 8.e3 Nc5; C) 5.Nc3 Nf6 6.Nf3 (6.b5 0-0 7.Nf3 Nbd7 8.e3 Nc5) 6...0-0 7.b5 Nbd7 8.e3 Nc5.

4.Qc2 Ne7 5.b5 A) 5...Nd7 6.Nf3 (6.Nc3 Nb6 7.e4 Be6 8.Nf3 Nc4) 6...Nc5 7.d4 ed4 8.Bd4 f4; B) 5...e4 6.Nc3 (6.f3 Nd7 7.fe4 fe4 8.Nc3 e3) 6...Nd7 7.g4 Nf6 8.g5 Nd7.

4.Nc3 g6 5.e4 Bg7 6.ef5 Bf5 7.Be2 Nf6 8.Nf3 0-0 9.0-0 Nc6 10.b5 Ne7 11.d4 e4 12.Nd2 Qd7 13.d5 Bg4 (better is 13...c6!?=) 14.Bg4 (worse is 14.Nce4 Be2 15.Qe2 Nfd5 16.Bg7 Nf4+=) 14...Ng4 15.Nde4 Ne5 16.Qb3 b6 (16...Rae8!?+/–) 17.Ng5+– Nd3 18.Ne6 Rf7 19.Ng7 Kg7 20.Ne4 Nb2 21.Qb2 Kh6 22.Qd2 Kg7 23.Ng5 Rf6 (23...Rf5 24.Rae1 Kg8 25.Re4+–) 24.Qc3 Ng8 (24...Qf5 25.Qe3 Re8 26.Ne6 Re6 27.de6+–) 25.Rae1 Re8 (25...a6 26.a4+–) 26.Re8 Qe8 27.Re1 Qd7 28.Ne6 Kf7 (28...Kh8 29.g4 h6 30.f4+–) 29.Re3 (better is 29.Qh3 Ke8 30.Nc5 Qe7 31.Re7 Ne7 32.Qd7 Kf7+–) 29...Nh6 (29...h6+–) 30.Rh3 Nf5 (30...Re6 31.de6 Qe6 32.Rh6 Kg8+–) 31.Rh7 Kg8 32.Rd7 1–0. tyop (1770) – kalipe, internet, 2013.

4.c5 b5 5.cd6 cd6 6.d4 e4 (6...d5 7.de5 Bb4 8.Nd2=) 7.d5 Be7 (7...e3 8.Nh3=) 8.Bg7+= Bf6 9.Bf6 (9.Bh8 Bh8 10.Nd2 Ba1 11.Qa1 Qf6+=) 9...Qf6 10.Nd2 Qd4 (better 10...Ne7 11.e3 a6+=) 11.Qc2?? (better 11.e3 Qd5 12.Ne2+/-) 11...Qa1-+ 12.Nb1 Bd7 13.e3 Na6 14.Kd2 (14.a3-+) 14...Rc8 15.Qb3 Ne7 (better 15...Nb4 16.a3 Rc2 17.Qc2 Nc2 18.Kc2-+) 16.Ne2 Rc4 (better 16...Nb4 17.Nd4 Rc5-+) 17.Nd4 (17.a3 Nd5 18.Nec3 Nc3 19.Nc3-+) 17...Rb4 18.Qc2 (18.Qc3 Rb1 19.Qa1 Ra1-+) 18...Rb1 19.g3 Rb2 20.Bg2 Rc2 (better 20...Qa2 21.Rc1 Nb4-+) 21.Kc2 Qa2 (21...Nb4 22.Kd2 Qb2 23.Ke1 Nd3 24.Kd1 Nd5 25.Ne2 b4 26.Be4 Ba4) 22.Kc3 Qd5 (22...Nd5) 23.Ra1-+ b4 24.Kd2 Bc8 (better 24...Nc6 25.Ke1 Nd4 26.ed4-+) 25.Bf1 b3 26.Ba6 b2 27.Rb1 Qa2 28.Bb5 Bd7 29.Bd7 Kd7 (29...Kd7 30.f3 Qb1 31.Ke2 Qd3 32.Kf2 b1Q 33.Ne2 Qh1 34.fe4 Qh2 35.Ke1 Qhe2) 0-1. 0203 - Sigla (1635), Rated Classical game, lichess.org, 2014.

4.d4 Nc6 5.d5 Nb4? (better is 5...Nce7=) 6.Qa4+– Nc6 7.dc6 bc6 8.Nc3 Nf6 9.Qc6 Bd7 10.Qa6 g5 11.Rb1 Bg7 12.c5! d5 (12...dc5 13.e3 Combination) 13.Nf3 e4 14.Ng5 (14.Ng5 c6 15.Nh3+–) 1–0. Fournier,Frederic (1635) – tamalito (1680), Active, 2006.

4.d4 Qe7 5.e3 Nf6 6.de5 de5 7.a3 g6 (7...a5 8.b5=) 8.Nf3 Nbd7 9.Nc3 c6 10.Be2 Bg7 11.Rc1 (11.0-0 e4 12.Nd4 Ne5+=) 11...0-0 (11...e4 12.Nd4=) 12.0-0 b6 13.Qb3 Kh8 14.Rfd1 e4 15.Nd4 Bb7 16.Bf1 (16.Rd2 a5+=) 16...Rad8 (16...a5 17.Be2=) 17.Nce2 (17.c5 Rfe8 (worse 17...bc5 18.Ne6+/-) 18.cb6 ab6+=) 17...Ne5 (17...c5!? 18.Nb5 Ne5 19.Be5 Qe5 20.bc5 Ng4=) 18.Nf4+/- Bc8 19.h4?? (better 19.c5 b5 20.Nfe6 Be6 21.Ne6 (21.Qe6?! Rd7+=) 21...Rd1 22.Rd1+-) 19...Nd3?? (better 19...c5 20.Nc2 Nfg4=+) 20.Bd3+- Rd4 (20...ed3 21.Nc6 (21.Nd3?! Qe4+/-; 21.Qd3?! Ne4 22.Qc2 Bd7+/-; 21.Rd3?! c5 22.Nc6 Rd3 23.Qd3 Qc7+-) 21...Qe4 22.Nd8 Rd8 23.Rd3 Rd3 24.Qd3 Qd3 25.Nd3+-) 21.Bd4 (21.ed4?! Bh6 22.g3 ed3+-) 21...ed3 22.Qd3 Ne4 23.h5 g5 24.h6 Bd4 25.Qd4 (25.ed4?! gf4 26.d5 Qg5+=) 25...Nf6 26.Nh5 Qf7 (26...c5 27.Qb2 Kg8 28.Nf6 Rf6 29.bc5 Rh6 30.Qd4+-) 27.Qe5 (better 27.Nf6 c5 28.Qe5+-) 27...Qh5 (27...Kg8 28.Nf6 Qf6 29.Qf6 Rf6+-) 28.Rd6 (28.Qf6! Rf6 29.Rd8 Qe8 30.Re8 Rf8 31.Rf8) 28...Qh6+= 29.Rcd1 Kg8 (29...Qg7 30.Rd8 (worse 30.Rc6 Ne8 31.Qg7 Ng7+/-) 30...Rg8 31.R1d6+-) 30.Rd8 Qg7?? (30...Bd7 31.R1d7 Nd7 32.Rd7+/-) 31.R1d6 (better 31.Rc8 Rc8 32.Qe6 Qf7 33.Qc8 Kg7 34.Qf5 Qc4 35.Qg5 Kf7 36.Qf5+-) 31...Ne4+/- 32.Rf8 Qf8 33.Rc6 Bb7?? (33...Bd7 34.Rc7 Nf6+-) 34.Rc7 Nd6 (34...Bc8 35.Qd5 Kh8 36.Qa8+-) 35.c5 (better 35.Qe6 Nf7 36.Rb7 a6+-) 35...bc5 36.bc5 Nf7 37.Qf5 Ba6 38.Ra7 (38.Qe6!? Qg7 39.Ra7 Qa1 40.Kh2 Qe5 41.Qe5 Ne5 42.Ra6 Kf7+-) 38...Bc4 (38...Bc8 39.Qd5 Qe8 40.Ra8+-) 39.e4 (better 39.c6 Qd6 40.c7 Qd1 41.Kh2 Qh5 42.Kg3 Qh4 43.Kf3 g4 44.Qg4 Qg4 45.Kg4+-) 39...Qe8 40.a4 (better 40.Rf7 Bf7 41.Qg5 Kf8 42.e5+-) 40...Qe6? (better 40...Qc6+-) 41.Qe6 Be6 42.c6 (42.a5!? Bc4 43.Ra8 Kg7+-) 42...Nd6 43.Re7 Bc8 (43...Bg4+-) 44.e5 Nc4 (44...Nf5 45.Re8 Kf7 46.Rc8+-) 45.Re8 Kf7 46.Rc8 Ne5 (46...Nb6 47.Rb8 Nd5 48.Rd8+-) 47.a5 Ke7 48.a6 Kd6 49.a7 Nc6 50.Rc6! Kc6 51.a8Q (51.a8Q Kd6 52.Qf8 Kd5 53.g4+-) 1-0. Nf3 (2035) - dono (1710), Rated Classical game, lichess.org, 2013.

4.d4 Qf6 5.de5 de5 6.a3 Be6 7.e3 Nd7 8.Nf3 0-0-0 9.Qc2 b6 10.Be2 Bd6 11.0-0 Qg6 12.c5 bc5 13.bc5 Nc5 14.Ne5 Qe8 15.Bd4 Qa4 16.Qa4 Na4 17.Ba6 Kb8 18.Nc6 Ka8 19.Nd8 Nf6 1–0. kaasparov – mitroi, internet, 2013.

4.e3 d5 5.cd5 (5.Be5 Nc6 6.Nf3 Nb4+–) 5...Qd5+= 6.Nc3 Qd6 7.a3 a6 8.Bc4 Nf6 9.Qb3 Ne4 (9...Nc6!?=) 10.Bf7 Ke7 11.Ne4 fe4 12.Ne2 Be6 (12...a5 13.Nc3+–) 13.Be6 Qe6 14.Qc2 Nc6 15.Qe4 Rd8 16.Qh4 (16.f4 ef4 17.Qe6 Ke6 18.Nf4 Kd7+–) 16...Kd7 17.d4 Be7 18.Qe4 Bf6?? (18...ed4 19.Qe6 Ke6 20.Nd4 Nd4 21.Bd4+–) 19.de5 (better 19.d5 Qd6 20.dc6 Qc6 21.Rd1 Ke7 22.Qc6 bc6 23.Rc1+–) 19...Be5+– 20.Rd1 Kc8 21.0-0?? (better 21.Nd4 Nd4 22.Bd4+–) 21...Rd1 (21...Bh2 22.Kh2 Qe4 23.Ba1–+) 22.Rd1 (22.Be5 Rf1 23.Kf1 Qe5 24.Qe5 Ne5 25.Nd4–+) 22...Bh2! 23.Kh2 Qe4 24.Nf4 (24.Rd2 Rd8 25.Rd8 Nd8–+) 24…Qc2 0–1. GuestZMTB – GuestTNTL, freechess.org, 2017.

4.e3 Be7 (--> 1.b4 e5 2.Bb2 d6 3.e3 Be7 4.c4 f5).

4.e3 Ne7 5.Nf3 g6 6.d4 Bg7 7.de5 Nbc6 8.ed6?? (better is 8.Be2+=) 8...Bb2–+ 9.de7? (9.Nbd2 Qd6 10.Rb1–+) 9...Qd1 (9...Ba1?? 10.ed8Q Nd8 11.c5+–) 10.Kd1 Ba1 11.b5 Ne5 12.Nd4 Ke7 13.Be2 (13.Nb3 Ng4 14.Ke1 Bg7–+) 13...Be6 (better is 13...Rd8!? 14.Kd2 Bd4 15.ed4 Rd4 16.Kc3–+) 14.Nd2 Rhd8 (better is 14...Bc3 15.Ne6 Ke6–+) 15.Kc2?? (15.Ne6 Ke6 16.Kc2 Rd2 17.Kd2–+) 15...Bd4 16.ed4 Rd4 0–1. lendzior (1615) – vitruvius (1785), internet, 2013.

4.e3 Qf6 5.f4 Ne7 6.Nf3 g6?? (better 6...Ng6=) 7.fe5+- de5?? (7...Qf7 8.Qa4 Nbc6+-) 8.Be5 (8.Ne5?! Bg7 9.Nd3 Qf7+/-) 8...Qe6 (8...Qb6 9.Bh8 Qb4 10.Nc3+-) 9.Bh8 Qf7 (9...Qg8 10.Bc3+-) 10.Ng5 (10.Be2 Qg8 11.Bc3 Be6 12.Qa4 Nd7+-) 10...Qg8 11.Be5 (11.Bc3 h6 12.Nf3 Be6 13.Qa4 Kd8+-) 11...h6 (11...Nec6 12.Bc3 Bb4 13.Bb4 Nb4 14.Nc3+-) 12.Nf3 Nbc6 (12...Nec6 13.Qa4+-) 13.a3 (better 13.Bc7 Nb4 14.Nc3 Be6+-) 13...Ne5 14.Ne5 Qg7 (14...Bg7 15.d4+-) 15.Qa4 (15.d4 Qf6+-) 15...c6 16.d4 Be6 (16...Qf6 17.Nd2 f4+-) 17.d5 (better 17.b5 Qf6 18.Nd2 Bd7+-) 17...Kd8?? (better 17...Qe5!? 18.Ra2 Bd7+/-) 18.dc6 (better 18.de6 Kc7+-) 18...bc6 (18...Qe5 19.Qd1 Kc7 20.cb7 Qe3 21.Qe2 Qc1 22.Kf2 Qf4 23.Qf3 Qf3 24.gf3 Kb7+-) 19.Qa5 Ke8 20.Ra2 Qf6 21.Qc7 (21.Nd2 Bg7 22.Ndf3 g5+-) 21...Rd8 (21...Rc8 22.Qa7 Qe5+-) 22.Nc6 (better 22.Nd2+-) 22...Rd7 (22...Rc8 23.Qe5 Qe5 24.Ne5 Bg7+-) 23.Qb8 Kf7 24.Na7 (better 24.Ne5 Kg8 25.Nd7 Bd7 26.Qa7 Qe6+-) 24...Rd6 (24...Qh4 25.Qg3 Qg3 26.hg3 Ra7+-) 25.Qd6 Nc8 26.Nc8 (better 26.Qc7 Ne7+-) 26...Bd6 27.Nd6 Ke7 28.Nb7 (28.Rd2!? Qa1 29.Rd1 Bd7+-) 28...Qe5 (28...Qh4 29.Kd1 Qe4 30.Rc2 Qb7 31.Bd3+-) 29.Kd2 (better 29.Nc5 Qe3 30.Kd1 f4+-) 29...Qc7 (29...Qe4 30.Nc5 Qb1+-) 30.Nc5 Qd6 31.Kc1 Qe5 32.Rd2 Qe3 33.Ne6 (better 33.Kc2 Qf4 34.Re2 Qc4 35.Nc3 Kf7+-) 33...Qe6 34.c5 (34.Re2 h5+-) 34...Qe5 35.Re2 Qe2 36.Be2 1-0. CanardFou – wilk, Rated Classical game, lichess.org, 2014. (=1.e3 e5 2.c4 d6 3.b4 f5 4.Bb2)

4.e3 Qg5 5.Nf3 Qg4 6.h3 Qe4 (6...Qg6 7.Nc3=) 7.Nc3 Qc6 8.b5 Qc5?? (8...Qd7 9.Be2+=) 9.a4 (better is 9.Na4 Qb4 10.a3 Qb2 11.Nb2+–) 9...Nf6 (9...c6!?+/–) 10.Ba3+– Qb6 11.a5! Qa5 12.Bd6! Qb6?? (12...cd6 13.Ra5 Discovered attack; 12...Bd6 13.Ra5 Discovered attack) 13.Be5 (better is 13.c5 Bd6 14.cb6 cb6 15.Bc4+–) 13...Nbd7 14.Bd4 Qe6 15.Ng5 Qe7 16.Qc2 Nc5 17.Bc5 Qc5 18.d4 Qe7 19.Bd3 g6 20.0-0 h6 21.Nf3 Bd7 22.Ne5 Qg7 23.Nd7 Qd7 24.c5 Nd5 25.Ne2 Nb4+/– 26.Qc3 Nd3 27.Qd3 Qd5? 28.Nf4 Qf7 29.d5 Bc5?? 30.Ne6 Bd6 31.Qc3 Rg8 32.Rfc1 Rc8? 33.Ra7 f4 34.Rb7 Kd7 35.Qc6 Ke7 36.b6 fe3 37.f3 Qf5 (37...Qf5 38.Nc7 Rgd8 39.Ne6 Kf6 40.Nd8 Rd8+–). lican – donatys112, internet, 2013.

4.e4 Nf6 5.Nc3 (5.ef5 Bf5 6.Nf3 Be7=+) 5...Be7 (5...fe4 6.d3-/+) 6.Be2 (6.Bd3 Nc6=+) 6...0-0 7.d3 fe4 8.de4 b6 (8...Nc6 9.b5 Nd4 10.Nf3 Ne2 11.Qe2=+) 9.Bf3 (9.Nf3 a5 10.b5 Nbd7=) 9...Ba6 10.b5 Bb7 11.Nge2 Nbd7 12.0-0 Nc5 The pressure on e4 grows 13.Nd5 (13.Qc2 a6=+) 13...Nfe4 14.Be4 Ne4 15.f3 Nf6 16.Ne7 Qe7 17.Qb3 Kh8 18.Rfe1 Nh5 19.Rad1 Qg5 20.Rd3 (20.Bc1 Qg6 21.Qd3 Rf5-/+) 20...Nf4 (20...e4!? 21.f4 Nf4 22.Rg3 Qc5 23.Kh1-+) 21.Nf4-/+ Rf4?? (better 21...Qf4 22.Qc3 a6-/+) 22.Bc1+= Raf8 23.Bf4 Qf4 24.a4 e4 25.Rd4 Qf5 26.Qc3?? (better 26.Qe3+/-) 26...ef3-/+ 27.gf3? (better 27.Rf1-/+) 27...Bf3-+ 28.Qe3 (28.Qc1 Qg6 29.Kf2 Qg2 30.Ke3-+) 28…Qg6 (28...Qg6 29.Qg5 Qg5 30.Kf2 Bh5 31.Rf4 Qf4 32.Kg2 Qf2 33.Kh3 Rf3) 0-1. rmg1919 (1775) - bobby fissure (2180), ChessWorld.net, 2019.

4.Nf3 c5 5.bc5= e4 6.Nd4 dc5 7.Nb3 Nf6 8.e3 Nc6 9.a3 Bd6 10.Be2 0-0 11.Nc3 Be6 12.Qc2 Ne5 13.Na4 b6 14.0-0 Nfg4 15.Bg4 Ng4 16.g3 Qe8 17.Nc1 Qh5 18.h4 Qf7 19.d3 ed3 20.Nd3 Bc4 21.Qe2 Rad8 22.Rad1 Bc7 23.Rd2 Qd7 24.Nac5? bc5 25.Rfd1 Ba5 (25...Ba5 26.Nc5 Bd2 27.Qc4 Qd5 28.Qd5 Rd5–+) 0–1. Schuhler,Ernst – Secula,V, corr SOK–92–90, 1992.

4.Nf3= Nc6 5.b5 A) 5...Nce7 6.Nc3 (6.e3 Nf6 7.Nc3 Ng6 8.Be2 Be7) 6...Nf6 7.g3 g6 8.Bg2 Bh6; B) 5...Na5 6.Qa4+= c5 7.Nc3 Nf6 8.Nd5 Nd5.

4.Nf3= e4 5.Nd4 Nc6 6.d3 (6.b5 Nd4 7.Bd4 Nf6 8.Nc3 Be7) 6...ed3 7.Qd3 Nf6 8.Nc6 bc6.

4.Nf3 Be6 5.e3 e4 6.Nd4 Bd7 (6...Bc8 7.a3 (7.d3 Nf6 8.Be2 c5 9.Nc2 Be7 10.Nd2 Nc6 11.b5 ed3 12.Bd3+=; 7.Be2 Nf6 8.d3 c5 9.Nc2 Be7 10.Nd2 Nc6 11.b5 ed3 12.Bd3+=; 7.Nc3 c5 8.Nc2 Nf6 9.Be2 Qb6 10.a3 Nc6 11.Nd5 Nd5 12.cd5+=) 7...Nf6 8.d3 Be7 9.Be2 c5 10.Nb5 0-0 11.de4 Nc6 12.bc5+=; 6...Qe7 7.Be2 (7.d3 Nf6 8.Be2 Bd7 9.0-0 Nc6 10.Nc6 Bc6 11.Bd4 Qf7 12.f3+=; 7.Ne6 Qe6 8.Nc3 Nf6 9.Nb5 Na6 10.Qa4 Qd7 11.Bf6 gf6 12.d4+=; 7.Nc3 Nf6 8.Ne6 Qe6 9.Nb5 Na6 10.Qa4 Qd7 11.Bf6 gf6 12.d4+=) 7...Nf6 8.d3 Bd7 9.0-0 Nc6 10.Nc6 Bc6 11.Bd4 Qe6 12.b5+=) 7.Be2 (7.d3 Nf6 8.Be2 Be7 9.0-0 0-0 10.Nd2 Qe8 11.a3 Qg6 12.f3=; 7.b5 Nf6 8.Be2 Be7 9.0-0 0-0 10.d3 a6 11.Nc3 ab5 12.cb5=; 7.Nc3 Nf6 8.d3 Be7 9.de4 fe4 10.Qc2 c5 11.bc5 dc5 12.Nde2=) 7...c5 (7...Nf6 8.d3 Be7 9.0-0 0-0 10.Nd2 Qe8 11.a3 Qg6 12.f3=) 8.bc5 (8.Bh5 Ke7 9.bc5 dc5 10.Nb3 Na6 11.d4 ed3 12.Qd3+/–) 8...dc5 9.Nb3 (9.Bh5 g6 10.Nf5 Bf5 11.Bh8 gh5 12.Qh5=) 9...Be6? (better is 9...Nf6= 10.d3 Be7 11.de4 fe4 12.N1d2+=) 10.Nc5!+– Bc8 (10...Bc5 11.Bg7 Combination) 11.Nb3 (11.Qa4 Nc6 12.Bh5 Ke7+–) 11...Nf6+/– ½–½. Kamaletdinov,Farit (1970) – Ivchenko,Evgeny, Astrakhan Open, 2011.

4.Nf3 Be7 5.e3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 Be7).

4.f4 Nd7 5.Nf3 Ngf6 6.g3 (6.fe5 de5 7.c5 Qe7=) 6...b6 (6...e4!? 7.Nd4 Nb6=+) 7.Bg2 Bb7 8.0-0 Qe7 9.Nc3 0-0-0 10.a4 h5 (10...ef4!? 11.a5 fg3 12.hg3 d5 13.ab6 ab6 14.Nd5 Nd5 15.cd5 Qb4=) 11.a5+/- d5 (11...ef4!? 12.gf4 d5 13.ab6 ab6 14.cd5 Qb4+=) 12.ab6+- ab6 13.cd5 Nd5 (13...ef4!? 14.Nh4 fg3 15.hg3 Qb4+=) 14.Ne5 Nc3 15.Bb7 Kb7 16.Bc3 Ne5 17.Be5 Qb4 18.Qc2?? (better 18.d4 Rd5 19.Ra4+-) 18...Rd2?? (better 18...Qc5 19.Qc5 Bc5 20.Kg2 Rd2-+) 19.Qc7 1-0. AvImd (1695) - Sinha1234 (1750), lichess.org, 2020.

4.f4 Qe7 5.fe5 de5 6.Nf3 (6.a3 Nd7=+) 6...Qb4 (6...e4!? 7.Nd4 Qb4-/+) 7.Be5=+ Qc4 8.Qb3 (8.e3 Qc5=+) 8...Qb3 9.ab3 Nc6 (9...Kd8-/+) 10.Bb2 (better 10.Bc7 Be6 11.Nc3=+) 10...Bc5?? (better 10...Be6!?-/+) 11.e3 (11.Bg7 Be6+-) 11...Bd7?? (better 11...Nf6=+) 12.Bg7+- 0-0-0 (12...Be6 13.Bh8 Nb4 14.Na3 Bb3 15.Rc1+-) 13.Bh8 Nge7 14.Bd4 (better 14.Bc3!? Nd5+-) 14...Nd4 15.ed4 Bb6 16.Bc4 c5 (16...Nc6 17.d5 Nd4 18.Nd4 Bd4 19.Ra2+-) 17.dc5 Bc5 18.Nc3 Bc6 19.Rc1 Ng6 20.Be6 Kb8 21.Bf5 Bf3 (21...Nf4 22.Kf1 Rd2 23.Nd2 Bg2 24.Ke1 Bh1 25.Na4+-) 22.gf3 Rf8 (22...a5 23.h4+-) 23.Bg6 hg6 24.Nd5 (better 24.Ke2 Bd4+-) 24...Rf3 (24...Ba3 25.Rc3 Rf5+-) 25.Rc5 Rb3 (25...b6 26.Rc3 Rf5 27.Ne7 Re5 28.Re3+-) 26.Rf1 (26.0-0 Rg3 27.hg3 a6 28.Rf8 Ka7 29.Rcc8 b5 30.Rf7) 26...Rb1+- 27.Ke2 Rb3 (27...Rf1 28.Kf1 b6+-) 28.Rf8 1-0. Agiant – quicksandish, lichess.org, 2020.

4.g3 c6 5.Bg2 Nf6 6.d4 Be6 7.de5 (7.de5 de5 8.Qd8 Kd8 9.a3=). Ultima.X – DonSalvaje, ChessWorld.net, 2020.

4.g3 e4 5.d3 ed3 (5...Nf6 6.de4 fe4 7.Nc3=) 6.Qd3+= Nf6 7.Bg2 (7.Nf3+=) 7...g6 (7...Nc6 8.Nf3 Nb4 9.Qb3=) 8.Nh3 (8.Qe3 Kf7 9.Nf3 h6+/-) 8...Bg7 9.Nf4 0-0 10.h4 Nc6 11.Bd5 (11.h5 Nh5 (worse 11...Nb4 12.Qd2 a5 13.hg6 hg6 14.Ng6+-) 12.Bd5 Kh8 13.Bg7 Kg7 14.Nh5 gh5 15.Bc6 bc6 16.Rh5 h6+=) 11...Nd5 12.Qd5 Rf7 13.Bg7 Kg7 14.h5?? (better 14.Qd2=) 14...Qf6-+ 15.Kf1 (15.0-0 Qa1 16.b5 Ne7-+) 15...g5 (15...Qa1 16.Kg2 g5 17.h6 Kf8 18.Qd2-+) 16.h6 Kf8 (16...Kf8 17.Nh3 g4-+) 0-1. Lance5500 (2535) - ChessExplained (2630), lichess.org, 2021.

4.g3 Be6 5.Bg2 c6 6.d3 =+.

4.g3 Be7 5.Bg2 Nh6 6.d4= 0-0 7.Nd2 c6 8.Qb3 a5 9.b5 a4=+ 10.Qc2 cb5 11.de5= a3 12.Bc3 de5 13.cb5 Be6 14.Ngf3 Nd7 15.Ne5 Ne5 16.Be5 Rc8 17.Qd3+= Bb4 18.Rd1 Rf7 19.Qd8 Rd8=+ 20.Bf4 Rfd7 21.Bg5 Ra8 22.0-0 Nf7 23.Be3 Rad8 24.Bb6 Bd2 25.Bb7 Rb7 26.Bd8 Bb4 27.b6 Nd8 28.Rd8 Kf7 29.Ra8? Rb6 30.Rb1 Ba2 31.Rb4 Rb4 32.Ra3 Bc4 (32...Bc4 33.Ra7 Kf6–+) 0–1. Lifshitz,Samuel – Belanoff,Stuart, CP–2003–F–00001, 2007.

4.g3 Qf6 5.Bg2= Nh6 6.Nh3 Ng4 7.0-0 Qh6 8.Nc3 f4 9.gf4 ef4 10.Nd5+/– Qh4?? 11.Nc7+– Kd7 12.Na8 Ke7 13.Nc7 Nh2 14.Kh2 Bh3 15.Bh3 g5 16.Nd5 Kf7 17.Qc2 g4 18.Qf5 Kg8 19.Qe6# 1–0. marre – wakjaq, internet, 2010.

4.g4 f4 5.h3 Nf6 (5...Be6 6.e3=+) 6.Bg2= Nbd7 7.Qa4 (7.d4 Be7=) 7...c6=+ 8.b5 cb5 (8...Nc5 9.Qd1=+) 9.Qb5= Rb8 (9...Be7 A) 10.Bb7?? Rb8 11.Bc8 Qc8-+ (11...Rb5?! 12.Bd7 Qd7 13.cb5-+; 11...Rc8?! 12.Bc3=); B) 10.g5 Ng8 11.Ba3= (11.Bb7 Rb8 12.Bc8 Qc8-+)) 10.Nc3 a5 (10...a6 11.Qb3=) 11.Nd5 Nd5 12.Bd5 (worse 12.Qd5 Nc5 13.d4 Be6=+) 12...Be7 (12...Qb6 13.a4+=) 13.Nf3 (13.d4 Bf6+=) 13...b6 (13...h5 14.gh5 Qb6 15.Be4+=) 14.h4 (14.d4!?+/-) 14...Bb7 15.Ng5 (15.d4 Bd5 16.Qd5 Rc8+/-) 15...Bd5 (15...Bg5 16.hg5 Qg5 17.Bb7 Rb7 18.Qc6=) 16.Qd5 Bg5 17.hg5 g6 (17...Qg5 18.Ba3 Qg4 19.Bd6 Rc8+=) 18.c5?? (better 18.Ba3 Qg5 19.Bd6+/-) 18...bc5=+ 19.Bc3 Nb6 20.Qe6 Qe7 21.Qb3 (21.Qe7 Ke7 22.Ba5 Na4=+) 21...Kd7 (21...a4 22.Qb5 Qd7 23.Qd7 Nd7-+) 22.Rh6?? (better 22.Ba5 Na8 23.Qa4 Ke6 24.Qc4 d5 25.Qa6 Kf7 26.Qc6=) 22...Nd5?? (22...a4 23.Qb5 Ke6 24.Rh1-+) 23.Qa4?? (better 23.Qd5 a4 24.Rh3 Qg5 25.Rd3+-) 23...Ke6-+ 24.d4?? (better 24.Ba5 Qg5 25.Rh1 Qg4 26.Qc4-+) 24...Nc3 (24...Qg5!? 25.Rh1 Nc3 26.Qc4 Nd5 27.dc5 dc5 28.Qc5-+) 25.Qc4 Kd7 (better 25...Nd5 26.dc5 dc5-+ (26...Qg5?! 27.0-0-0 e4 28.Qe4 Qe5 29.Qf5 Qf5 30.gf5 Ke5 31.fg6 hg6 32.Rg6-+)) 26.Qc3 ed4 27.Qa3 (27.Qa5 Qg5 28.Qa7 Ke6 29.Rh7 Rh7 30.Qh7 Qg4 31.Kf1-+) 27...Rb5 (better 27...Qg5 28.Qh3 Rb2-+) 28.Qa4-/+ Rhb8 29.Rb1 Kc6 30.Kd2 (30.Kd2 f3 31.e3-+). Agiant (1610) - titeb (1630), lichess.org, 2020.

4.g4 fg4!? 5.Bg2 Nf6-/+.

4.h3 a5 5.b5 b6 (5...Nf6 6.e3=) 6.a4 (6.e3 Nf6=) 6...c5 7.bc6 Nc6 8.e3 Nf6 9.Nf3 h6 (9...Be7 10.Qb3=) 10.Nh4 Kf7 11.c5 (11.Nc3 Be6=) 11...dc5 (11...bc5!? 12.Bb5 Na7-/+) 12.Bc4=+ Be6 13.Na3 Bc4 (13...Qd7 14.Bb5 Qc7 15.Nc4=) 14.Nc4= g5 (14...Qd3!? 15.Ne5 Ne5 16.Be5 Be7=) 15.Nf5 (15.Qb3 Qd5 16.Nf3 Ke7 17.Be5 Bg7+/-) 15...Qd3 (better 15...Qd5 16.Qb3 Ke6+/-) 16.Be5?? (better 16.Qf3 Qc4 17.Qc6+/-) 16...Qf5-/+ 17.Nd6?? (better 17.Bf6 Qf6 18.Nb6-/+) 17...Ke6 (better 17...Bd6 18.Bd6 Qd5-+) 18.Nf5+- Kf5 (18...Ne5 19.Qb1 Rc8+-) 19.Bf6 Kf6 20.Qf3 Kg6 (20...Ke6 21.Qc6 Bd6 22.Qb6 Rhb8+-) 21.Qc6 Kh7 22.Qa8 Bg7 23.Qe4 Kg8 24.Qe6 Kh7 25.Qb6 (25.Qf5 Kg8 26.Rb1 Rh7 27.Qe6 Kf8 28.Rb6 Bb2 29.Rb8 Kg7 30.Rg8) 25...Ba1 26.Qc7 (better 26.Qb1 Kg8 27.Qa1 Rh7+-) 26...Kg6 27.Qc5 Bf6 28.0-0 h5 29.Qa5 g4 30.Qd5 gh3 31.Qe4 Kf7 32.g3 (32.Rc1 h2 33.Kh1 Re8 34.Qh7 Kf8 35.Rc6 Re7 36.Rf6 Ke8 37.Qf5 Re5 38.Qe5 Kd7 39.Rf7 Kc6 40.d4 h4 41.Qe6) 32...Rg8 33.Kh2 (33.Rc1 Bd8+-) 33...Re8 34.Qh7 Ke6 35.Qh5 (35.Rb1 Bd8 36.Rb7 Kd5 37.Rd7 Kc4 38.Qd3 Kb4 39.Rd4 Kc5 40.Qb5) 35...Rf8 36.a5 (36.Rb1 Bb2 37.Qh3 Ke7 38.Rb2 Rf2 39.Kh1 Rf5 40.Qh7 Rf7 41.Rb7 Ke6 42.Qf7 Ke5 43.Re7 Kd6 44.d4 Kc6 45.Qe6) 36...Ra8 37.Qb5 (37.Rb1 Ra6 38.e4 Ra7 39.Rb6 Ke7 40.Qh7 Ke8 41.Qg8 Ke7 42.Re6 Kd7 43.Qe8 Kc7 44.Rc6 Kb7 45.Qc8) 37...Ra5 38.Qa5 Kf7 39.Rb1 Kg6 40.d4 Bg5 (40...Bg7 41.g4 Bf8 42.Rb7 Bd6 43.f4 Bf4 44.ef4 Kf6 45.Qf5) 41.d5 (41.Rb6 Bf6 42.Qe5 Kh7 43.Qf5 Kg8 44.Rb7 Be7 45.Re7 Kh8 46.Qc8) 41...Kf5 42.d6 Kg4 (42...Kg6 43.d7 Bd8 44.Qd8 Kf5 45.Qf8 Ke6 46.d8Q Ke5 47.Qdd6 Ke4 48.Qff4) 43.d7 Kf3 (43...Bf6 44.Rf1 Bg5 45.d8Q Kf3 46.Qad5 Kg4 47.Q8g5) 44.Qg5 Kf2 (44...Ke4 45.d8Q Kf3 46.Qgf6 Ke4 47.Qdd4) 45.Rb2 Kf3 (45...Ke1 46.Qa5 Kf1 47.Qa1) 46.Qf4 1-0. zomboeb (1605) - wildstorms3 (1660), lichess.org, 2019.

4.h3 Nc6 5.a3 Be6 6.e3 Qd7 7.Nc3 0-0-0 8.Rc1 d5 9.cd5 Bd5 10.Nd5 Qd5 11.Nf3 e4 12.Nd4 Nd4 13.Bd4 Nf6 14.Bc4 Qd6 15.Bc5 Qc6 16.Bf8 Qd7 17.Bc5 Nd5 18.0-0 f4 19.Bd5 Qd5 20.Ba7 b6 21.Bb6 c6 22.Bd8 Rd8 23.Qg4 Kb7 24.Qf4 g5 25.Qf6 h5 26.Rc5 Qd6 27.Qg5 Qd7 28.Rfc1 h4 29.Rc6 Qc6 30.Rc6 Kc6 31.Qd8 Kb5 32.Qd4 Ka6 33.a4 Kb7 34.Qc5 Ka6 35.a5 Kb7 36.Qb6 Kc8 37.a6 Kd7 0–1. lican – fubango, internet, 2013.

4.h4 Nf6 5.e3 Be7 6.Nf3 (6.Nc3=+) 6...c6 (6...e4!? 7.Ng5 0-0=+) 7.Nc3 (7.c5 e4 8.cd6 Qd6=+) 7...Be6 (7...Ng4 8.Be2=) 8.Qc2 (8.Ng5 Bd7 9.Be2+=) 8...Nbd7 (8...Ng4 9.Rd1=) 9.d4 (9.Ng5!? Bg8 10.Qf5+/-) 9...e4 10.Ng5 Bg8 11.g3 h6 12.Nh3 Bf7 13.Ng1? (better 13.Nf4!?=) 13...0-0 14.Na4 (14.Nge2 Nb6 15.c5 Nc4-/+) 14...c5 (14...d5 15.a3-+) 15.bc5-/+ dc5 16.d5 (16.Ne2 cd4 17.Nd4 Ne5-/+) 16...Qa5 (16...b5!? 17.d6 ba4 18.de7 Qe7 19.Ne2-+) 17.Nc3 Ne5 18.Be2 (18.0-0-0 Rad8-/+) 18...a6 (18...b5!? 19.Nh3 bc4 20.0-0-+) 19.Kf1 Qb4 (better 19...Nfg4!?-/+) 20.a3= Qa5 (better 20...Qb6=) 21.Bc1?? (better 21.Ne4 Nfg4 22.Nd2+/-) 21...b5!-+ 22.cb5 ab5 23.Bd2?? (23.Bb2 c4 24.Nb5 Qb5 25.Be5 Nd5 26.Bd4-+) 23...b4 24.Nb1 (24.d6 Bd6 25.Nb5-+) 24...Nd5 25.a4 (25.Nh3 Bf6 26.Ra2 Qa7-+) 25...Bf6 (better 25...c4 26.g4 fg4-+) 26.f4 (26.Na3 Qa4 27.Qa4 Ra4 28.Nc2 Ra1 29.Na1-+) 26...Nd3 27.Bd3 Ba1 (better 27...ed3 28.Qd3 c4-+) 28.Bb5 Rfd8 29.Na3 (29.Ne2-+) 29...Bc3 (better 29...ba3 30.Ba5 Ne3 31.Kf2 Nc2 32.Bd8 Bd4 33.Kg2 Ne1 34.Kh2-+) 30.Nc4 Qa7 (better 30...Bd2 31.Qd2 Nc3 32.Qc1-+) 31.Bc3 (31.Kf2 Bd2 32.Nd2 c4 33.Nc4 Rac8-+) 31...Nc3 32.Ne5 (32.Kg2 Nb5 33.ab5 b3-+) 32...Rd1 33.Kg2 Rad8 34.Nc6 (34.Qf2 Nb5 35.Nc6 Qa4 36.Nd8 Rd8 37.Nh3-+) 34...R8d2 35.Ne2 Rc2 36.Na7 Rdd2 (better 36...b3 37.Nc8 Rh1 38.Ne7 Kf8 39.Ba6 b2 40.Kh1 Ne2 41.Ng6 Bg6 42.Kg2 Nf4 43.Kg1 Rg2 44.Kh1 b1Q 45.Bf1 Qf1) 37.Ra1 Re2 (37...Ne2 38.Nc8 Ng3 39.Kg3 Rg2 40.Kh3 Rh2 41.Kg3 Rcg2) 38.Kg1 Rg2 39.Kf1 (39.Kh1 Rh2 40.Kg1 Nb5 41.Rc1 Rcg2 42.Kf1 Nc3 43.Rc3 bc3 44.a5 c2 45.a6 c1Q) 39...Rh2 (39...Nb5 40.Rd1 Bc4 41.Rd3 Bd3 42.Ke1 Rc1) 40.Kg1 Rhd2 (40...Nb5 41.Rc1 Rcg2 42.Kf1 Nc3 43.Re1 Bc4 44.Re2 Re2 45.Nc6 Rh1) 41.a5 (41.Nc6 Nb5 42.Ne5 b3 43.Nd3 ed3 44.Re1 b2 45.ab5 Rc1 46.Kf1 b1Q 47.Rc1 Qc1) 41...Nb5 42.Nb5 (42.g4 Rg2 43.Kh1 Rh2 44.Kg1 Rcg2 45.Kf1 Bc4 46.Ke1 Rg1) 42...Bc4 43.Nc7 Ra2 (43...Rg2 44.Kh1 Rh2 45.Kg1 Rcg2) 44.Rc1 (44.Ra2 Ra2 45.Kh1 b3 46.Nd5 Bd5 47.g4 Rd2 48.gf5 b2 49.Kg1 b1Q) 44...Rg2 45.Kh1 Be2 (45...Rh2 46.Kg1 Rag2) 46.a6 (46.Kg2 b3 47.Re1 Bg4 48.Kg1 b2 49.Nd5 Ra1 50.Kf1 Re1 51.Ke1 b1Q 52.Kf2 Qa2 53.Kf1 Qe2 54.Kg1 Qe1 55.Kg2 Bf3 56.Kh3 Qh1) 46...Bf3 47.a7 (47.Rf1 Rh2 48.Kg1 Rag2) 47…Rg3 0-1. beatmeeasy (1900) - SSalem (1860), lichess.org, 2020.

5.Nc3 Be7 6.Qb3 0-0 7.c5 d5 8.e4 (better 8.Nf3!? Nc6 9.e3=+) 8...fe4-/+ 9.d3 ed3 10.Bd3 e4 (10...c6 11.Nf3 Qc7 12.Ne4 Ne4 13.Be4-/+) 11.Bc2 (11.Ne4 Bg4=) 11...c6 (11...Re8 12.Nge2=+) 12.Nge2 (12.Ne4 Ne4 13.Be4 Bf6=+) 12...h6 (better 12...Rf7-/+) 13.b5?? (better 13.Ne4 Ne4 14.Be4=) 13...Bc5-+ 14.bc6 (14.0-0 Qe7-+) 14...bc6 15.f3 (15.0-0 Ba6-+) 15...ef3 16.gf3 Kh8 Black prepares the advance d4 (16...Nbd7 17.Na4 Bd6 18.Rb1-+) 17.0-0-0 (17.Rb1-+) 17...d4?? (better 17...Qe8-+) 18.Ne4?? (better 18.Nf4 g5 19.Ng6 Kg7 20.Na4+=) 18...Ne4-+ 19.Be4 Ba6 (better 19...Qg5 20.Kb1 Nd7 21.Nd4 Rb8-/+) 20.Nf4?? (better 20.Nd4 Qg5 21.Kb1 Bd4 22.Bd4+=) 20...Rf4-+ 21.Bd4 (21.Rhg1 Qf8 22.Rd4-+) 21...Bd4 22.Rhg1 (22.Qb4 Be3 23.Kc2 Qg5-+) 22...Be3! 23.Qe3 (23.Qe3 Qf6 24.Rg4 Rg4 25.fg4-+). Agiant – hokkabazbilge, lichess.org, 2019.

5.d4 ed4 6.Qd4 (6.Bd4 Be7 (6...Nc6 7.Nf3 Nd4 8.Qd4 a5 9.Nbd2) 7.Nc3 Nc6 8.Nf3 0-0 9.e3) 6...Nc6 (6...Be7 7.e3= (7.Nf3 0-0 8.Nbd2 a5 9.b5) 7...Nc6 8.Qd1 0-0 9.Nf3) 7.Qe3 (7.Qf4 Be6= (7...Be7 8.Nc3 0-0 9.Nf3) 8.Nf3 Be7 9.b5) 7...Qe7 (7...Be7 8.Bf6 gf6 9.Nf3) 8.Qe7 Be7 9.Nf3 0-0 10.Nc3 Be6 11.e3 a5 (11...Rac8 12.Rd1+=) 12.Nb5 Rac8 (12...Ne8 13.Nbd4 Bd7 14.b5+=) 13.Nbd4+= Nd4 14.Nd4 Bf7? (better 14...Bd7!?+=) 15.Nf5+– Rfe8 16.Bd3 ab4 (16...Ra8 17.Kd2+–) 17.ab4 d5 (17...b6 18.Ra7+–) 18.Ne7 (18.Ne7 Re7 19.c5+–) 1–0. Baumann,Heinz (2355) – Walker,Maria (2215), remoteschach.de, 2003.

5.e3 Be7 6.d3 0-0=+ 7.Nd2 a5 8.g3 Qe8 9.Bg2 Kh8 10.Ne2 Qh5 11.h3 Na6 12.b5 Nc5 13.Nb3 Nb3 14.Qb3= Rb8 15.Kd2 f4 16.ef4 ef4 17.Nf4+/– Qh6 18.Kc2 Nh5= 19.Bc1 Nf4=+ 20.Bf4 Qg6 21.Be4 Bf5 22.Rae1 Be4 23.Re4 Bf6 24.Rhe1 Qh5 25.Kb1 b6 26.h4 Qf3 27.Qc2 Qh5 28.a4 Qc5 29.Ka2 Rbc8 30.R1e2 Qf5 31.Qd1 Qh3 32.Qe1 Qf5 33.R2e3 Qc5 34.Qe2 Qb4 35.Qc2+/– Qc5 36.Qe2 ½–½. alaamattar (2205) – hobgoblin (2155), net–chess.com, 2005.

5.Nf3 A) 5...Be7 6.Nc3 (6.c5 e4 7.cd6 Qd6 8.Nd4 Nc6 9.Nc6) 6...e4 (6...0-0 7.d3 Nc6 8.g3 Be6 9.Bg2) 7.Nd4 0-0 8.b5 c5 9.bc6; B) 5...e4 6.Nd4 Be7 7.Nc3 0-0 8.Nd5 c5 9.Nb5.

5.a4 Nf6 6.b5 Ng4 7.e3 Qh4 8.Qe2 e4 (8...Nh2? 9.g3 Qh6 10.f4+-) 9.g3 Qh6 10.Nh3 (better 10.f3 Nf6 11.Bg2=) 10...g5?? (10...Ne5 11.Nf4-/+) 11.Rc1?? (better 11.Ne4 Rg8 12.Nc3+/-) 11...Rg8 (11...Ne5 12.Qd1-/+) 12.Ba3? (better 12.d4=) 12...Ne5-/+ 13.Bg2? (better 13.bc6 bc6 14.Rc2-+) 13...Nd3-+ 14.Kd1 Nc1 15.Kc1 (15.Bc1 Nd7 16.d4 ed3 17.Qd3 Ne5-+) 15...Qe6 (15...Nd7 16.d4-+) 16.Kc2 (16.Kd1 Rg6-+) 16...Bd7 (16...Qf7 17.Kd1-+) 17.Rb1 (17.Qh5 Qf7 18.Qf7 Kf7-/+) 17...c5 (17...Qf7!? 18.Kd1-+) 18.Nd5 Bg7?? (better 18...Kd8-/+) 19.Nc7+- Ke7 20.Ne6 Be6 21.Ng5 1-0. georgek - Maklaud695, Rated Blitz game, lichess.org, 2013.

5.e3 Nf6 6.Nf3 Be7 7.Be2 0-0 8.0-0 Na6 9.a3 Nc7 10.h3 Ne6 11.d4 e4 12.Nd2 Bd7 13.f4 Rf7 14.d5 Nf8 15.Qb3 Ng6 16.Nd1 Qb6 17.Rb1 Qc7 18.Bf6 Bf6 19.Rc1 a5 20.dc6 bc6 21.c5 d5 22.Bh5 a4 23.Qc2 Rff8 24.Bg6 hg6 25.Nf2 g5 26.g3 gf4 27.gf4 Be6 28.Nh1 d4 29.Rce1 de3 30.Re3 Bd4 31.Kf2 Qf4 32.Ke1 Qe3 33.Kd1 Rfd8 34.Re1 Qh3 35.Kc1 Bc3 36.Nf2 Bd2 37.Qd2 Qa3 38.Qb2 Qb2 39.Kb2 Rd2 0–1. elev – iacobsohn, internet, 2014.

5.e3 Qe7 6.Nf3 Qf6 7.Be2 Be7 8.0-0 Nc6 9.b5 Nd8 10.a4 Bf8 11.d4 e4 12.Nd2 Qe7 13.d5 Bf7 14.Qc2 Nf6 15.Rfd1 Qd7 16.Bf1 Be7 17.g3 0-0 18.Bg2 h6 19.Nb3 Nh7 20.Ne2 Bf6 21.Bf6 Nf6 22.Qc3 Qe7 23.Nbd4 Nh7 24.Nf5 Qf6 25.Qf6 Nf6 26.Nfd4 Bg6 27.Nc3 Re8 28.Re1 Nf7 29.f3 Ne5 30.fe4 Nc4 31.Bf1 Ne5 32.Bg2 Nd3 33.Rf1 Ne4 34.Ne4 Be4 35.Rfd1 Bg2 36.Kg2 Ne5 37.Nf5 Rf8 38.e4 Kh7 39.Nd4 Rf7 40.Ne6 Rc8 41.Rf1 1–0. kannisogoet – honorka11, internet, 2014.

5.e3 Nf6 6.d4 e4 (6...ed4!? 7.ed4 Qe7=) 7.d5+= Bf7 8.Nge2 Be7 9.Nd4 Qd7 10.Be2 0-0 11.Qb3 c6 12.0-0 cd5 13.Nd5 Nd5 14.cd5 Na6 15.Rfc1 (better is 15.Bb5!? Qc8 16.Ba6 ba6 17.f3+/–) 15...Nc7= 16.Bc4 a6 (16...b5 17.Be2 a6 18.Rc7 Qc7 19.Nf5=) 17.a4 (17.Ne6 Rfc8 18.Bg7 b5+/–) 17...Rfb8 (17...b5!? 18.Be2 Bf6 19.ab5 Bd4 20.Bd4 ab5=) 18.Ne6+/– b5 19.Nc7 Qc7 20.Bb5 Qb7 21.Bc6 (21.Bc6 Qb4 22.Qb4 Rb4 23.Ba8 Rb2 24.Rab1 Rb1 25.Rb1+–) 1–0. tyop (1735) – 006fik, internet, 2013.

5.e3 Nf6 6.Nf3 h6 7.d4 ed4 8.Nd4 Bd7 9.g3 Nc6 10.b5 Nd4 11.Qd4 c6 12.a4 Be7 13.Bg2 0-0 14.0-0 Rc8 15.Ne2 Ne4 16.Qg7 1–0. kannisogoet – dect10, internet, 2014.

5.Nc3 Be7 6.g3 0-0 7.Bg2 Qe8 8.Nf3 Nc6 9.b5 Nd8 10.a4 Ne6 11.a5 Rb8 12.Qc2 Kh8 13.Nd5 Bd8 14.Ba3 (14.0-0!?+=) 14...e4+= 15.de4 Ne4 (15...fe4 16.Nd2 Nd4–/+) 16.0-0+= Qh5 17.Rfd1 Bd7 18.Rab1 b6 19.ab6 ab6 20.Bb2 N4c5 21.e3 Ne4 22.Ra1 Nf6 23.Ra7 Nd5 24.cd5 Nc5 25.Nd4 Rc8 26.Nc6 Bc6 27.dc6 Bf6 28.Rd5 (28.Bf6 Rf6 29.Rda1 Re6+/–) 28...Bb2 29.Qb2 Qg6 30.Qc2 Qf6 31.Rd4 (31.Bh3 g6+/–) 31...Ne6 (31...Ra8!? 32.Qa2 Ra7 33.Qa7 Ne6+=) 32.Rda4+/– Nc5 33.Ra2 Qe5 34.Qc4 g6 35.Rd2 Qf6 36.Bd5 Rfe8 37.Kg2 Qe5 38.Bf3 Qf6 39.Rd4 Ne6 40.Rd2 Nc5 41.Bd5 ½–½. Tetenkina,Irina (2105) – Agrest,Svetlana (2195), Stockholm Scandic op (Women), 2000. (=1.c4 f5 2.b4 d6 3.Bb2 e5)

5.Nd2 Be7 6.e4 0-0 7.Ne2 Be6 8.ef5 Bf5 9.Ng3 Be6 10.d4 ed4 11.Bd4 Kh8 (11...Nc6 12.Nf3–/+) 12.Bd3 c5 13.Bc3 d5 14.a3 (14.bc5 Bc5 15.Qb3 d4+=) 14...d4 15.Bb2 cb4 16.ab4 Bb4 17.0-0 Nc6 18.Nf3 Bd6 (18...Qb6 19.Ng5 Bg4 20.f3–/+) 19.Bd4 (19.Nf5 Bc5+=) 19...Bg3–/+ (19...Nd4?! 20.Nd4 Bg4 21.Nf3+=) 20.Bf6 Bh2! (20...Rf6?! 21.hg3 Bg4 22.Be4=) 21.Nh2 (21.Nh2 Qf6 Zwischenzug; 21.Kh2 Qf6 Zwischenzug) 21...Qf6 22.Rb1 (22.Qh5 h6 23.Ng4 Qf7 24.Qf7 Rf7–/+) 22...Rad8 23.Qc2 Nd4 24.Qa4 Nf5 (24...Rd7 25.Qa7 Nc6 26.Qe3–/+) 25.Bf5 Bf5 (worse is 25...Qf5 26.Rb7 a6 27.Qa1+= (27.Qa6? Bc8 28.Qc6 Bb7 29.Qb7 Qf4–+)) 26.Rbd1 (26.Rb7 Bd3 27.Qa7 Bf1 28.Nf1 Rd4–+) 26...Rd1 (26...Bd3!? 27.Qa7 Bf1 28.Rd8 Rd8 29.Nf1–+) 27.Rd1–/+ Qb6 28.Qb5 Qg6 29.f3 Qf7 30.c5 h6 31.g4 Be6 32.Rd2 Bd5 33.Rf2 Bc6 34.Qa5 a6 35.Qc3 Qd5 36.Re2 Qf7 37.Rf2 Qg6 38.Qc2 Qc2 39.Rc2 Bf3 40.Nf3? Rf3–+ 41.Rb2 Rg3 42.Kf2 Rg4 43.Rb7 Rc4 44.Rb6 Rc5 45.Ra6 Rg5 46.Kf3 g6 47.Kf4 Rf5 48.Kg4 h5 49.Kh4 Rf4 50.Kg5 Rg4 51.Kh6 Kg8 52.Rf6 h4 53.Rf3 Rg3 54.Rf4 h3 55.Rh4 Kf7 56.Rf4 Ke6 57.Rf1 h2 58.Rh1 Rg2 59.Kg7 Kf5 60.Kf7 Kg4 61.Kg6 Kh3 62.Kf5 Rg1 63.Rh2 Kh2 0–1. Krebs,Joern – Noetzel,Felix, Berlin–ch U14, 2004. (=1.c4 f5 2.b4 e5 3.Bb2 d6)

5.Nd2 Be7 6.Ngf3 0-0 7.g3 Nc6 8.a3 a5 (8...Qd7 9.Bg2=) 9.b5 Nb8 10.Bg2 Nbd7 11.0-0 Nc5 12.Qc2 Rb8 (12...Ne6 13.Bc3=) 13.d4+= ed4 14.Nd4 Ne6 (14...Qd7!?+=) 15.Nf5+/- Nc5 16.Ne7 Qe7 17.e4 Ng4 18.Rae1 Qg5 19.f4 Qh5 20.h3 Nf6 21.e5 Bh3? (better 21...Ne8 22.g4 Qh6+-) 22.ef6 Bg2 23.Kg2 Rf6 (23...gf6 24.Rh1 Qg6 25.Qg6 hg6 26.Bc3+-) 24.Rh1 (better 24.Bf6 gf6 25.Qc3+-) 24...Qg4 (24...Qf5 25.Qf5 Rf5+-) 25.Qh7 (better 25.Bf6 Kf7 26.Bg5 Re8 27.Re8 Ke8 28.Re1 Ne6 29.Qh7 Kf7+-) 25...Kf8 (25...Kf7 26.Bf6 Kf6 27.Ne4 Ne4 28.Qe4 Qd7+-) 26.Bf6 (26.Bf6 Kf7 27.Rh6 Qg3 28.Kg3 Ne6 29.Qg6 Kg8 30.Re6 Re8 31.Re8) 1-0. opperwezen (2870) - AdamvonLeipzig (2420), lichess.org, 2016.

5.Nd2 Be7 6.Ngf3 a5 7.b5 0-0 8.g3 Nbd7 9.Bg2.

5.Nd2 g6 6.e4 (6.Ngf3 Bh6 7.c5 Be6 8.Qa4 Qd7 9.b5) 6...Bg7 (6...Bh6 7.Ngf3 0-0 8.Be2 Be6 9.0-0) 7.Qc2 (7.Ngf3 0-0 8.Be2 fe4 9.Ne4) 7...0-0 8.Ngf3 b6 (8...Qe7 9.b5) 9.Be2 (9.b5=) 9...c5 10.bc5 bc5 11.Rb1 Nc6 12.a3 Bd7 13.0-0 Qc7 14.Rfd1 f4 15.Bc3 h6 16.Rb2 Rab8 17.h4 (17.Nb3 a5=) 17...Rb2 18.Bb2 Kh7 19.Nb1 Bg4 20.Nh2 Be2 21.Qe2 Rb8 22.Nf3 a6 23.Nc3 Qa5 (23...Nd4 24.Nd4 ed4 25.Na2–/+) 24.g3 (24.Nd5 Nd5 25.cd5 Nd4 26.Nd4 cd4=) 24...fg3 25.fg3 Rf8 26.Rf1 Qd8 27.Nd1 Qd7 28.Kg2 Nh5 29.Ne3 Kh8 30.Bc1 Nd4 31.Nd4 Rf1 32.Qf1 ed4 33.Nd5 Kh7 34.Qf3 Qe6 (34...Qa4 35.Qe2=) 35.Nc7 (35.g4 Nf6 36.g5 Nd5 37.cd5 Qe7+=) 35...Qc8= 36.Nd5 Qe6 37.Nf4 Nf4 38.gf4 Qf6 (38...Qf7 39.f5=) 39.Qg4 h5 40.Qg5 Qg5 (40...Kg8 41.f5+–) 41.hg5+– (worse 41.fg5 Be5+=) 41...Bf8 (41...Kg8 42.Kg3+–) 42.Kg3 Be7 43.f5 Bd8 44.Bf4 Bc7 45.Kf3 Kg7 46.Ke2 a5 47.Kd2 a4 48.Ke2 Kf7 49.Kf3 Kg7 50.Bg3 Kf7 ½–½. Buczko,Jozsef – Katona,Ferenc Jr (1835), HUN–chT2 Asztalos, 2004.

5.Nf3 Na6 (5...Be7 6.Nbd2 a5 7.b5 Nbd7 8.g3 0-0 9.Bg2) 6.Qb3 e4 7.de4 fe4 8.Nd4 c5 9.bc5.

5.g3 Be7 6.Bg2 0-0 7.Nc3 Nc6 8.b5 Nd4 9.e3 Ne6 10.Nge2 Qe8 11.a4 a6 12.Nd5 Nd5 13.Bd5 (13.cd5 Nc5 14.d4 ed4 15.Nd4 ab5 16.ab5 Ra1 17.Ba1 Bf6=) 13...c6+= 14.bc6 bc6 15.Bg2 Rb8 16.Bc3 (16.Rb1 f4 17.ef4 ef4 18.gf4 Nf4 19.Nf4 Bf6 20.Qe2 Rb2 21.Rb2 Bb2 22.Qe8 Re8 23.Kd2 Rf8+=) 16...Bd7 (16...f4 17.ef4 ef4 18.gf4 Nf4 19.Be4–/+) 17.0-0+= Qh5 18.f4 Bf6 19.Bf3 Qh3 20.Bg2 Qh5 21.Bf3 ½–½. Torres,Douglas Da Silva (2080) – Braga,Jose Pereira (2035), 3rd Aberto Xadrez Potiguar, 2008.

5.e3 Ngf6 6.Nd2 Be7 7.Be2 0-0 8.de5 de5 9.Qc2 e4 10.a3 a5 11.c5 ab4 12.ab4 Ra1 13.Ba1 Kh8 14.f3 Qe8 15.fe4 fe4=+ 16.Ne4 Ne4–/+ 17.Qe4 Nf6?? 18.Qd4 Qd7 19.Nf3+/– Qd4 20.Bd4+– Nd5 21.b5 Bg4 22.0-0 Re8 23.Bc4 Nf6 24.Ne5 Bh5 25.h3 Ne4? 26.Nf7 Bf7 27.Rf7 Bf6 28.Bf6 gf6 29.Rc7 Nd2 30.Bd5 Re3 31.Rb7 Re5 32.Rd7 Nb1 33.c6 Nc3 34.c7 Ne2 35.Kf2 (35.Kf2 Re8 36.Rd8 Kg7 37.Re8 Kh6 38.Ke2 Kg6 39.Rg8 Kf5 40.c8Q Ke5 41.Re8 Kd5 42.Qc6 Kd4 43.Re4) 1–0. wlittle (2155) – alexp (2375), net–chess.com, 2004.

5.e3 Ngf6 6.Nf3 Be7 (6...e4 7.Ng5 Nb6 8.Be2=) 7.a3 (7.de5 Ne5 8.Ne5 de5 9.Qd8 Kd8 10.Be5 Bb4 11.Nc3 Ng4=) 7...e4 8.Ng5 0-0?? (better 8...Nb6=) 9.Ne6+- Qe8 10.Nc7 (10.Nf8?! Nf8 11.Be2 Qg6+-) 10...Qf7 (10...Qd8 11.Na8 b6+-) 11.Na8 f4 12.Qc2 (better 12.ef4 d5+-) 12...fe3 13.fe3 Ng4 14.Qe2 (better 14.Nc3 Nf2 15.Rg1 Nd3 16.Bd3 ed3+-) 14...Bg5? (14...Nf2 15.Nc3+-) 15.Nc3 (better 15.Nd2 Ndf6 16.Nb3+-) 15...Ne3 (15...Nf2 16.Rg1 Nd3 17.Kd2 Nf6 18.Ne4 Ne4 19.Kd3 Qg6+=) 16.Ne4 (16.Bc1!? Qf1 17.Rf1 Rf1 18.Qf1 Bh4 19.Ke2 Nf1 20.Kf1 Be7+-) 16...Re8 17.Ng5 Ng2 (17...Qg6 18.Kf2 Nf6 19.Kg1 Qg5 20.Bc1+-) 18.Kd1 Ne3 (18...Re2 19.Nf7 Rb2+-) 19.Kd2 (better 19.Qe3 Re3 20.Nf7 Kf7 21.Kd2+-) 19...Nc4 (19...Qf4 20.Qh5 Nf1 21.Kc2 Qf5 22.Kb3 Qd3 23.Ka4 Qc2 24.Kb5 Nf6 25.Qf7 Kh8+/-) 20.Qc4 Qc4 21.Bc4 Kh8 22.Nf7 Kg8 23.Nd6 (23.Nd6 Kf8 24.Raf1 Nf6 25.Ne8 Ke8 26.Rhg1+-) 1-0. b4 (1930) - 3xaxa (1725), Rated Classical game, lichess.org, 2013.

5.b5 ed4 6.Qd4 Nbd7 7.Nc3 Be7 8.Nf3 0-0 9.g3 Nc5.

5.de5 de5 6.Qd8 Kd8 7.Be5 Bb4 8.Bc3 Nc6 9.a3 Ba5 10.Ba5 Na5 11.e3 Nb3 12.Ra2 Be6 13.Rb2 Nc5 14.Nd2 Ke7 15.Ngf3 Rad8 16.Nd4 Rd6 17.Be2 Rhd8 18.0-0 g5 19.Bf3 Nfe4 20.Ne4 fe4 21.Ne6 Re6 22.Bg4 Ra6 23.Ra1 Rd3 24.h3 Raa3 25.Ra3 Ra3 26.Bf5 h6 27.Kh2 a5 28.Kg3 a4 29.Kg4 Kf6 30.Bc8 Rc3 31.Kh5 Rc4 32.Bb7 a3 0–1. typul48 – ventil (1625), internet, 2014.

5.de5 de5 6.Qd8 Kd8 7.Be5 Nc6 8.Bc3 Ne4 9.b5 Nc3 10.Nc3 Nd4 11.Kd2 Be6 12.e3 Bc5 13.ed4 Bd4 14.f3 Kc8 15.Kc2 Rd8 16.Rd1 a6 17.Nge2 Be3 18.Rd8 Kd8 19.ba6 Ra6 20.Ng3 c6 21.Bd3 g6 22.Re1 f4 23.Nge4 Ra5 24.g3 fg3 25.Re3 gh2 26.Re1 Rh5 27.Rh1 Bf5 28.Ne2 Rh3 29.N2g3 h5 30.Nf5 gf5 31.Nd2 f4 32.Bf5 Rh4 33.Ne4 Ke7 34.Nf2 Kf6 35.Bc8 b6 36.Bb7 c5 37.Bd5 Ke5 38.a4 Kd4 39.Rd1 Ke3 40.Nh1 Rh3 41.Rb1 Rg3 42.Ng3 fg3 43.Rb6 g2 44.Re6 Kf2 45.f4 g1Q 46.Rc6 h1Q 47.Bh1 Qh1 48.Rc5 Qe4 49.Kc3 Qf4 50.Kb4 Qd6 51.a5 h4 52.Kb5 h3 53.Rh5 1–0. dtpwaldi – lupa27 (1640), internet, 2013.

5.de5 de5 6.Be5 Qd1 7.Kd1 Bb4 8.Nd2 Bd6 9.Bf6 gf6 10.e3 Be5 11.Rb1 Be6 12.Rb7 Nc6 13.Ngf3 0-0-0 14.Ne5 fe5 15.Rb2 e4 16.Be2 Ne5 17.Kc2 Nd3 18.Bd3 ed3 19.Kc3 Rd6 20.Rhb1 Rb6 21.a4 Rd8 22.a5 Rb2 23.Rb2 Rd6 24.Nb3 Rc6 25.c5 Bb3 26.Rb3 Rc5 27.Kd3 Ra5 28.Kd4 Kd7 29.f4 h5 30.h3 Kd6 31.g3 c5 32.Kd3 Ra4 33.Rb7 a5 34.Rh7 c4 35.Kc3 Kc5 36.Rh5 Ra3 37.Kc2 Re3 38.Rf5 Kb4 39.g4 Rh3 40.g5 c3 41.Rf8 Rh2 42.Kc1 a4 43.g6 a3 44.g7 Rg2 45.g8Q Rg8 46.Rg8 a2 47.Ra8 Kb3 48.f5 1–0. waldi1962 – sakip, internet, 2014.

5.b5 c5 6.Be2 Nf6 (6...Be7 7.f4+=) 7.d4 (7.Nh3 Be7+=) 7...Nbd7 8.de5 de5 (8...Ne5 9.Nf3 Be6 10.Nbd2+=) 9.Nf3+– Qe7 10.Nc3 e4 11.Ng5 Kd8 (11...Nb6 12.0-0+–) 12.Rb1 (12.0-0 Kc7+–) 12...b6 (12...Kc7 13.Nh3+–) 13.Nd5 Nd5 14.Qd5 Qg5 15.Qa8 Qg2 16.Kd2 Qg6? (better 16...Qf2 17.Rhf1 Qh2 18.Rf5 Qc7+–) 17.Rbd1 Kc7 (17...Qe6 18.Kc2 Bd6 19.Rd5+–) 18.Kc2 Qe6 19.f4 Bb7 (19...Be7 20.Rhg1 Rg8+–) 20.Be5 Qe5 21.fe5 (21.Rd7 Kd7 22.Rd1 (22.fe5?? Ba8 23.Rd1 Kc7–+; 22.Qb7?! Qc7 23.Qd5 Ke7 24.Qf5 g6 25.Qe4 Kf7+–) 22...Ke6 23.Qb7+– (23.fe5? Ba8 24.Rd8 Bb7–+)) 21...Ba8–+ 22.Rdf1 (22.e6 Ne5–+) 22...g6 23.e6 (23.h4 Ne5 24.h5 Bh6–+) 23...Ne5 24.h4 Bh6 25.h5 Kd6 26.Rh3 Ke6 27.hg6 hg6 28.Rfh1 (28.Rd1 Nf7–+) 28...Nf7 29.Rg1 (29.a4 Bb7–+) 29...Kf6 (29...g5 30.Rf1–+) 30.Rd1 g5 31.Rh5 (31.Rd7 g4 32.Rh4 Kg7–+) 31...Kg6 32.Rd7 g4 33.Rh1 Ne5 (better 33...Rf8 34.Kd2 Bg5–+) 34.Rd6 Kg5 35.Rb6 Nf3 36.Ra6 (36.Bf1 Nh4 37.Re6 Kh5–+) 36...g3 37.Bf1 Nh4 (37...Nh2 38.Bh3–+) 38.Ra5 Kg4 39.Be2 Nf3 40.Ra6 Be3?? (better 40...Kg5 41.Bf1 Nh2–+) 41.Rh8+= Bg5? (better 41...g2 42.Raa8 Bg5+–) 42.Bf1+– (42.Rha8 g2 43.Rg6 Kf4 44.Rg5 Ng5–/+; 42.Raa8 g2 43.Rag8 g1Q 44.Rg5 Kg5 45.Rg8 Kf4 46.Rg1 Ng1+–) 42...e3 43.Raa8 (better 43.Rha8 e2 44.Be2+–) 43...g2?? (better 43...e2 44.Be2 g2+–) 44.Bg2 Ne1 45.Kd1 Ng2 46.b6 f4 (46...Kf3 47.Rae8 Bd8 48.Rh3 Kf2+–) 47.Rae8 f3 48.Rhg8 Kh4 (48...f2 49.Ke2 Nf4 50.Kf1 Nh5 51.Re3 Nf6+–) 49.Rg5! Kg5 50.b7 f2 51.Ke2 (51.Ke2 Kg4 52.Rg8 Kf5 53.Rf8 Kg4 54.b8Q f1B 55.Rf1 Nh4 56.Qe5 Nf3 57.Rf3 Kh4 58.Qg7 Kh5 59.Rh3) 1–0. zuri9 (2295) – chessus11 (1620), gameknot.com, 2018.

5.b5 c6 6.a4 Nd7 7.Nf3 Ngf6 8.d4 e4 9.Nfd2 d5 10.Be2 Bb4 11.0-0 0-0 12.Qb3 Kh8 13.Nc3 Qe7 (13...dc4 14.Nc4 Nd5 15.Qc2+=) 14.cd5 (14.bc6 bc6 15.cd5 c5+=) 14...Bc3 (14...cd5 15.Ba3=) 15.Bc3 cd5 16.Rfc1 Nb6 17.Bb2 Bd7? (better 17...Rf7+/-) 18.Ba3+- Qf7 19.Bf8 Qf8 20.Rc7 (20.Qc3 Qc8+-) 20...Qd6 21.Rc5 f4 22.Rac1 Rf8 23.Nf1 g5 (23...Bg4 24.Bg4 Ng4 25.Qd1+-) 24.f3 (24.R5c2!? Bg4 25.Bg4 Ng4+-) 24...g4+/- 25.Qd1 (25.fg4 Bg4 26.Bg4 Ng4 27.h3 Ne3 28.Ne3 fe3 29.Qe3+-) 25...g3? (better 25...gf3 26.gf3 Bh3+=) 26.hg3+- fg3 27.f4 Rg8 28.Rc7 (better 28.Qd2+-) 28...Qf8?? (better 28...Bc6 29.R7c6 bc6 30.bc6 Qc7+-) 29.Qe1 (29.Rb7 Nc8+-) 29...Qg7 (29...Qa8+-) 30.Rb7 Na4 (30...Nc8 31.Rc6! Rd8 32.Qa5+-) 31.Rcc7 (31.Rc2 Ra8 32.Ra2 Nc3 33.Qc3 a4+-) 31...h5 (31...Nb2 32.Qa5 Nd3 33.Qa6+-) 32.b6 (better 32.Qa1!? h4 33.Qa4 h3 34.Qa5 Rd8+-) 32...h4 (32...Qg6 33.Qa5 Rd8 34.Ra7+-) 33.Bb5! h3 (33...Bb5 34.Rg7 Pinning (34.Rg7 Deflection)) 34.Bd7 hg2 (34...h2 35.Kh1 Nb6 36.Be6+-) 35.Kg2 Qh6 (35...Nb2 36.Be6 Nd3 37.Qa1+-) 36.Bf5 (better 36.Ba4 Qh5 37.Bd1+-) 36...Qh2 (36...Qh5 37.Be6 Re8+-) 37.Nh2 gh2 (37...Re8 38.Qg3 Nd7 39.Rd7 Re7 40.Rd8 Re8 41.Re8) 38.Kh2 Ng4 (38...Rg4 39.Rc8 Rg8 40.Qh4 Nh7 41.Rh7) 39.Bg4 Nc3 (39...Re8 40.Rh7 Kg8 41.Rhg7 Kf8 42.Rbf7) 40.Qh4 1-0. jhonores (2105) - bloomind (2040), Rated Blitz game, lichess.org, 2020.

5.b5 Nd7 6.d4 Qe7 7.Ne2 c6 8.a4 Ngf6 9.Ng3 g6 10.Be2 Bg7 11.0-0 0-0 12.d5 cd5 13.cd5 f4 14.ef4 ef4 15.Nh1 Ne5 16.f3 Bf5 17.Nf2 Rae8 18.Re1 (18.Nc3 Ned7=) 18...g5 (18...Nc4 19.Ra2–/+) 19.Nd2 (19.Nc3=) 19...Nh5 (better is 19...Nd5!? 20.Bc4 Be6 21.Bd5 Bd5+=) 20.Nde4 Be4 21.Ne4 Qd8 22.Rc1 Qb6 23.Bd4 Rf7?? (better is 23...Nf3 24.Bf3 Bd4 25.Kh1 Ng7 26.Ng5 Be3+/–) 24.Bb6+– Ref8 25.Bc7 h6 26.Bd6 (26.Nd6 Rd7 27.Nb7 Nf6+–) 26...g4 27.Be5 Be5 28.Qb3 (better is 28.d6 Nf6 29.Bc4 Nd7+–) 28...Bd4 29.Kh1 gf3 30.Bf3 Ng3 31.hg3 fg3 32.Nd6 Rf3 33.gf3 1–0. typ48 – sarunas4, internet, 2013.

5.a4 Nf6 6.Be2 (6.d4 ed4 7.ed4 Be7=+) 6...Be7 7.Nh3 (7.Nf3 e4 8.Nd4 c5=+) 7...Ne4 (7...0-0!?=+) 8.0-0= f4 (8...0-0 9.f4=) 9.Bh5+= g6 10.ef4 (10.Bf3!? Ng5 11.Ng5 Bg5 12.d4 fe3 13.de5+=) 10...Bh3= 11.fe5 (11.gh3 gh5 12.Qh5 Kf8 13.Qh6 Kf7 14.Qh5 Kg7 15.fe5+–) 11...Bf5 (better 11...de5!? 12.gh3 gh5 13.Qh5 Kf8 14.Qh6 Kf7 15.Qh5 Kf8 16.Qh6 Kg8=) 12.d3+= Ng5 (12...d5 13.de4 de4 14.Be2+=) 13.ed6 Bf6?? (better 13...Qd6 14.Bh8 gh5 15.Qh5 Qg6 16.Qg6 hg6+=) 14.dc7+– Qd6 (14...Qc7 15.Bf6 Nh3 16.gh3+–) 15.c5 (15.cb8N Bb2 16.Qe2 Be5=+) 15...Qc6 (15...Qf8 16.Qe2 (worse 16.cb8R Rb8 17.Qe2 Kd7+–; worse 16.cb8Q Rb8 17.Qe2 Kd7+–) 16...Kd7 17.cb8B Rb8 18.Bg4+–) 16.cb8Q (worse 16.cb8N Rb8 17.Re1 Kf7+–; worse 16.cb8B Bb2 17.Qe2 Kf7 18.Qb2 Rhb8+–) 16...Rb8 17.b5! ab5 (17...Qe6 18.Bc3 0-0 19.Bf3+–) 18.ab5 Qe6 19.Re1 Be4 (19...Bb2 20.Re6 Ne6+–) 20.Bg4 Qe7 (20...Qf7 21.Qc2+–) 21.Nc3 (21.Re4?! Ne4 22.Qe2 Bb2 23.Qb2 Nf6+–) 21...0-0 (21...Bc3 A) 22.de4?! Bb2 23.Ra7 A1) 23...Ne4?? 24.Qd5 Rd8 25.Qe4 (worse 25.Re4 Rd5 26.Re7 Ke7 27.Rb7 Kf6–+) 25...Qe4 26.Re4 Kf7 27.Rb7 Kf6 28.Bd7+–; A2) 23...Rd8=; B) 22.Bc3 Rf8 23.de4+–) 22.Ne4 (22.de4 Qc5 23.Qb3 Kh8+–) 22...Bb2 (22...Ne4 23.de4 Qc5 24.Ba3+–) 23.Qb3 Qf7 24.Qb2 Ne4 25.Re4 Rbd8 (25...Rfe8+–) 26.Be6 1–0. GuestHMDD – KHALDOUN, freechess.org, 2018.

5.d4 ed4 6.ed4 Nf6 7.Bd3 Be7 8.Ne2 0-0 9.0-0 Ne4 10.d5 Bf6 11.Qc2 Bb2 12.Qb2 Qf6 13.Qf6 Rf6 (13...Nf6 14.Nd4+=) 14.f3 Ng5 15.Nbc3 White prepares the advance b5 15...Nd7 16.f4 Nf7 17.Nd4 White prepares b5 17...Nf8 18.a4 White intends b5 18...h6 19.b5 b6 (19...Bd7 20.Rfe1+/–) 20.h4 (20.ba6!? Ra6 21.Ncb5 Bd7+–) 20...g6+/– 21.g3 Nd7 22.Rfe1 Nc5 23.Bc2 Bd7 24.ba6 Na6 25.Ncb5 Re8 (better is 25...Kf8!?+/–) 26.Re8+– Be8 27.Re1 Bb5 28.Re8?? (better is 28.ab5 Nb4 29.Bb1+–) 28...Be8–+ 29.h5 Nd8 30.hg6 Bg6 31.Kf2 Nb4 0–1. orangutandu – alexgrece, internet, 2013.

5.d4 e4 6.Nh3 h6 7.Qh5+/– Kd7? 8.Qf5+– Ke8 9.Qg6 Kd7 10.Nd2 Ne7 11.Qe4 c6 12.Nf4 g5 13.Ne6 Qb6 14.d5 c5 15.Bh8 Qb4 16.Nf8 Ke8 17.Bf6 Kf8 18.Qe7 (18.Qe7 Kg8 19.Qg7#) 1–0. pierre (2185) – corint, internet, 2007.

5.b5 Bb7 6.Nc3 Nf6 7.h3 g6 8.g4?? (8.d4 Nbd7=) 8...f4 (better 8...Bh1 9.gf5 gf5-+) 9.f3 (9.Nf3 fe3 10.fe3 Bg7=) 9...Bg7 10.e4 g5 (10...0-0 11.h4=+) 11.Nd5 Nd5 12.cd5 Nd7 13.Rc1 Nc5 (13...a6!?=) 14.Ne2?? (better 14.d4 ed4 15.Bd4 Bd4 16.Qd4+=) 14…Nd3 0-1. alex296 – edguisar, Rated Blitz game, lichess.org, 2013.

5.Nf3 Bb7 6.d4 (6.Nc3!?+/–) 6...e4= 7.Nfd2 d5 (7...Nf6!?=) 8.Nc3+/– Nf6 9.Qb3 a5 (9...Nc6 10.Nd5 Nd5 11.cd5 Nb4 12.Bb5 Kf7 13.d6 Nd5 14.dc7 Qc7 15.0-0+/–) 10.ba5 Ra5 11.cd5 Nd5 12.Bb5 c6 13.Be2 Na6 (13...Nd7!?+/–) 14.Nc4+– Bb4 15.Na5 Nc3?? (better is 15...Ba5 16.0-0 Nac7+–) 16.Nb7 Ne2 17.Ke2 Qc7 (17...Qd5 18.Rhc1 Kd7 19.Bc3 Qb5 20.Ke1+–) 18.Qe6 Kf8 (18...Be7 19.Rhc1 Qd7 20.Rc6 Qe6 21.Re6+–) 19.Qf5 Ke8 (19...Kg8 20.Qe6 Kf8 21.Rac1+–) 20.Qe4 Kd7 (20...Be7 21.Ba3 Qb7 22.Be7+–) 21.Qg4 Ke8 22.d5! Qb7 (22...cd5 23.Qe6 Double attack (23.Bg7 Discovered attack; 23.Qe6 Decoy)) 23.Bg7 Rg8 (23...Rf8 24.Bf8 Kf8 25.Qf5 Kg8+–) 24.Qe6 Kd8 25.Bf6 Be7 26.dc6 Qc7 (26...Nc5 27.Rhd1 Kc7 28.Rd7 Kb8 29.Qg8 Bf8 30.Qf8 Ka7 31.cb7 Ka6 32.Rb1 Ka5 33.Qa8 Na6 34.b8N Ka4 35.Qa6) 27.Qg8 1–0. Janek – Vigilante, internet free game, 2017.

5.Nf3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 c6).

5.Qh5 g6 6.Qd1 g5 (better is 6...Nf6!?=) 7.Qh5+/– Kd7 8.Nf3 Be7 9.Nc3 Kc7 10.b5 (10.c5!? Nf6 11.Qg5+=) 10...g4= 11.Ng1 Nf6 12.Qh6 Bd7 13.bc6 bc6 14.f3 Be8 15.Rc1 Kd7 16.f4 Nh5 (better is 16...Bf7=) 17.fe5?? (17.Bd3 Bg6 18.Bf5 Kc7 19.Nd5 (19.Bg4?! Bf8 20.Qg5 Be7 21.Nd5 cd5 22.cd5 Kb6=) 19...cd5 20.cd5 Kb6 21.Rc8 (21.Bg4?! Bf8 22.Qg5 Be7=; 21.fe5? Bf8 22.Bd4 Ka5 23.Bc3 Ka4 24.Bc2 Ka3–+) 21...Bh4 22.g3+=) 17...Bg5?? (better is 17...Bf8 18.e6 Kc8–+) 18.Qd6+– Kc8 19.Qa3 Bh4 Black prepares g3 20.Kd1 g3 0–1. lican – belmondo77, internet, 2013.

5.Nc3 Ngf6 6.Nf3 c6 7.Be2 e4 8.Nd4 Ne5 9.0-0 Be7 10.f4 Neg4 11.b5 c5 12.Nc2 Be6 13.d3 ed3 14.Qd3 0-0 15.Bf3 Rb8 16.Nd5 Nd5 17.Bd5 Bd5 18.Qd5 Rf7 19.Rfd1 Qe8 20.h3 Nh6 21.a4 Kh8 22.a5 Bf8 23.a6 b6 24.Re1 Qd7 25.e4+= fe4 26.Re4 Nf5 27.Rae1 h6 28.Re6 Kh7 29.g4 Nh4 30.f5 Be7?? 31.Rh6!! gh6 32.Qf7# 1–0. Trkn – guest5511, ICC, 2004.

5.d4 e4 6.Ne2 Ngf6 7.Nbc3 c6 8.Qb3 c5 (8...Ng4 9.h3 Qh4 10.g3=) 9.a3 Be7 10.Nf4 Nb6 11.Be2 0-0 12.d5 Ng4 (12...a5 13.ba5 Ra5 14.0-0+=) 13.h3 (13.Bg4 fg4 14.Ne4 Bf5+-) 13...Ne5 (13...Nf6+=) 14.Ne6 (14.bc5!? dc5 15.Ne4 fe4 16.Be5+/-) 14...Be6= 15.de6 Rf6 (15...Rc8 16.Nb5 a6=) 16.0-0-0 (better 16.Nd5!? Nd5 17.cd5+=) 16...cb4=+ 17.ab4 Rc8?? The pressure on c4 grows (17...Qc8 18.c5 dc5 19.Nd5 Nd5 20.Qd5 Nd3 21.Bd3 ed3 22.bc5 Re6 23.Rd3 Bc5 24.Kd2-/+) 18.Nd5?? (18.c5!?+-) 18...Re6?? (18...Nd5 19.Rd5 Re6 20.Kd2-/+) 19.Nb6?? (better 19.c5 Nd5 20.Qd5+/-) 19...ab6?? (19...Qb6 20.c5 Rc5 21.Kb1=+) 20.Kb1?? (better 20.c5!? Qd7 21.Be5 bc5 22.Bb5 cb4 23.Kd2+-) 20...Qc7 (better 20...Kh8=+) 21.c5+/- bc5?? (better 21...d5 22.Qd5 Kf7+/-) 22.Qe6+- (22.Qe6 Nf7 23.bc5+-) 1-0. dannysmet (1980) - jstello (1975), Rated Blitz game, lichess.org, 2020.

5.d4 Ngf6 6.Nf3 Qe7 (6...e4 7.Ng5 Nb6 8.Be2=) 7.Be2 g6 8.0-0 Bg7 9.Nc3 c6 10.de5 de5 (10...Ne5 11.Nd4=) 11.c5+= h6 12.Bc4 (better 12.Qa4+=) 12...Nf8? (12...e4 13.Nd4 Ne5 14.Be2=) 13.Qb3 (13.Ne5!? Be6 14.Qa4+/-) 13...N6h7 (13...e4 14.Nd4+=) 14.Rad1 Ne6 (14...Ng5 15.Ng5 hg5 16.Rd6+=) 15.Rd6 Kf7 (better 15...Neg5!? 16.Ng5 hg5+-) 16.Rfd1+- Re8 17.Ne2 Nhf8 (17...e4 18.Nfd4 Bd4 19.Nd4+- (19.ed4?! Nhf8+-; 19.Bd4?! b5 20.Be6 Be6+-; 19.R1d4?! Kg8+-; 19.R6d4?! Nhg5+-)) 18.Be5 (18.Ne5 Kg8+-) 18...Be5 19.Ne5 Kg7 20.Nd3 (20.Qc3 Kh7 21.Nf3 a5+-) 20...Bd7 (20...Ng5 21.Nef4+-) 21.Ndf4 g5?? (21...Bc8+-) 22.Ne6 (22.Ne6 Be6 23.Be6 Ne6 24.Rd7+-) 1-0. Mely (2240) - biohuman (2285), ChessWorld.net, 2016.

5.b5 fe3= 6.fe3 Nf6 7.Nf3 Bf5 8.Be2 Bb1 (8...Be7!?=) 9.Rb1+= Qe7 (9...Be7+=) 10.h3 (10.0-0 Nbd7+=) 10...Nbd7 (10...Ne4 11.0-0=) 11.0-0+= 0-0-0 12.d4 Ne4 13.de5 (better 13.Kh2+=) 13...Nf2?? (better 13...Ng3 14.Rf2 de5=) 14.Rf2+- Ne5 (14...de5 15.Qd5 Re8 16.Rd1+-) 15.Ne5 de5 16.Qc2 Qc5 17.Rd1 (better 17.Qf5!? Kb8 18.Qe5 Bd6 19.Qc5 Bc5+-) 17...Qe3 (17...Rd1 18.Qd1 Bd6+-) 18.Kh2 (18.Kh2 Rd1 19.Qd1+-; 18.Qf5 Rd7 19.Qd7 Kb8 20.Qd8) 1-0. Machaquito (1665) – jurdy, Rated Bullet game, lichess.org, 2013.

5.e4 Nf6= 6.f3 g5 7.d4 g4 (7...ed4!? 8.b5 Bg7=) 8.de5+= gf3?? (better is 8...de5 9.Qd8 Kd8 10.Be5 Bb4 11.Nc3 Rf8+=) 9.ef6+– fg2 (9...Rg8 10.Qf3 Bh6 11.c5+–) 10.Bg2 (better is 10.Qh5 Kd7 11.Qf5 Ke8 12.f7 Ke7 13.Qf6 Kd7 14.Bg2 Qf6 15.Bf6 Ke6 16.Bh8 Nc6+–) 10...f3 (10...Rg8 11.Qh5 Rg6 12.Bh3+–) 11.Qf3 (11.f7!? Kf7 12.Qf3 Kg8 13.Qg3 Kf7 14.Bh8 Be6+–) 11...Be6 12.f7! Kd7 (12...Bf7 13.Bh8 Discovered attack) 13.Bh8 Nc6 (13...Qh4 14.Kd2 Nc6 15.Bc3+–) 14.a3 (better is 14.b5 Na5 15.Bh3 Qh4 16.Ke2 Qe7+–) 14...Nd4 (14...Qh4 15.Qg3 Be7+–) 15.Bd4 Bc4 16.Nd2 (better is 16.Bh3 Kc6 17.Nd2 b5+–) 16...Be6 17.Ne2 Qe7 18.Rf1 c5 19.bc5 dc5 20.Bb2 Rd8 21.Nf4 (better is 21.Bf6 Qd6 22.0-0-0 Kc8+–) 21...Qd6 22.Rd1 (better is 22.Ne6 Kc8 23.Nc4 Qe6+–) 22...Qc6 23.Nc4 (better is 23.Ne6 Qe6 24.Bh3 Kc6 25.Be6 a5+–) 23...Kc7 24.Be5 Kc8 25.Ne6 Qe6 26.Bh3 1–0. lican – patimoto, internet, 2013.

5.ef4!? Nf6 6.Qe2+/–.

5.Nc3 Be7 6.Nd5 0-0 7.Nf3 e4 8.Nd4 c5 9.bc5 dc5 10.Ne2 Bd6 11.h3 Nf7 12.Nef4 Na6 13.Be2 Nc7 14.Qb3 Qg5 15.0-0 Nd5 16.Nd5 Be6 17.d4 (17.Qb7? Rab8 18.Qa7 Rb2–+) 17...cd4 18.Bd4 b6 19.Qb2 Bd5 20.cd5 f4 21.ef4 Qf4 22.g3 Qg5 ½–½. pvanr (1925) – jordache2 (1985), gameknot.com, 2009.

5.d4 Qf6 (5...ed4 6.ed4 Be7 7.Nf3=) 6.Nc3 White gets the initiative 6...c6 7.Nf3 Be6 (7...Be7 8.Be2=) 8.d5+= Bf7 9.Qa4 e4 (better 9...Qd8!?+=) 10.Nd4+– Be7 (10...Qe7 11.dc6 bc6 12.Nc6+–) 11.dc6 bc6 12.Nd5 Bd5 13.cd5 0-0 (13...f4 14.dc6 fe3 15.c7 Nd7 16.fe3 Ng4+–) 14.dc6 Rc8 (14...f4 15.Bc4 Kh8 16.0-0-0+–) 15.Bc4 Kh8 16.Be6 Rc7 17.b5 Nc6 18.bc6 (18.Nc6?! Qe6 19.Rb1 Rb7+=) 18...Rac8 (18...Qg6 19.0-0 Bf6+–) 19.Bc8 Rc8 20.Qa7 Bd8 21.Rb1 Rc7 (21...Qf7 22.Qf7 Nf7 23.Ke2+–) 22.Qa8 Qe7 (22...Ng8 23.0-0 Rf7 24.Nb5+–) 23.Ne6! Rc6 (23...Qe6 A deflection 24.Qd8 A double attack) 24.Nd8 Rc7 25.Nf7 1–0. PeterRs (2415) – kirklandlake (1630), ChessWorld.net, 2016.

5.Qb3 Ne7 6.Nc3 Na6 7.e3 Qg6 8.g3 Bd7.

5.Nc3 e4 6.Na4 Qe7 7.Nd4 Nc6 8.g3 Nb4.

5.e3 Nc6 6.b5 Nce7 7.Nc3 c6 8.Be2 Bd7 9.0-0 0-0-0 10.bc6+/– Bc6 11.Qb3 d5? 12.cd5+– Nd5 13.Nb5 Kb8?? 14.Be5 Qe5 15.Ne5 Bb5 16.Qb5 Ka8 17.Nf7 Nc7 18.Qa5 Rd2 19.Qc7 a6 20.Rab1 Re2 21.Qb7 1–0. pcmvr (2715) – miodrag (1980), net–chess.com, 2006.

5.e3 Nd7 6.Qb3 (6.Nc3 c6 7.Be2 Nh6 8.0-0 Be7) 6...c5 (6...Be7 7.d4= (7.Nc3 c6 8.Be2 Nh6) 7...e4 8.Nfd2 Qg6; 6...a5 7.Nc3 ab4 8.Nd5 Qd8) 7.Nc3 (7.d4 cb4 (7...cd4) 8.Qb4 (8.a3 e4) 8...Ne7+= (8...d5+=)) 7...Nb6 (7...cb4!? 8.Nd5 (8.Nb5 Nc5) 8...Qd8+=; 7...Qd8 8.h4 cb4) 8.Nb5+– Kd8 (8...Qe7!?+–; 8...Rb8+–) 9.bc5+– dc5 (9...Nd7 A) worse 10.Nd6 Nc5 11.Ne5 A1) 11...Qd6 12.Nf7 Kc7 13.Qc2 (13.Nd6?! Nb3 14.Nb5 Kd7 15.ab3 a6+–) 13...Nd3 14.Bd3+–; A2) 11...Bd6 12.Nc6 Kd7 13.Bf6 Nb3 14.Bg7 A21) 14...Kc6?? 15.ab3 (15.Bh8?! Na1 16.Ba1 Be6=) 15...Nf6 16.Bh8+– (worse 16.Bf6 Re8+–); A22) 14...bc6?? 15.ab3 (15.Bh8 Na1 16.Bd3 Ne7=+) 15...Nf6 16.Bh8+– (16.Bf6?! Rf8 17.Bd4 c5+–); A23) 14...Na1 15.Ba1 bc6=+ (15...Kc6?! 16.Bh8 Be6 17.d4=); B) 10.d4 e4 11.Nd2 dc5 12.Rd1+–) 10.Be5 Qe6? (better 10...Qc6+–) 11.Nc7 Qe7 12.Na8 Na8 13.Rd1 b6 14.d4 Bd7 (14...cd4 15.Nd4 (worse 15.Rd4 Ke8+–) 15...Ke8 16.Nc6+–) 15.dc5 Qc5 16.Qa4 (16.Qa4 Qb4 17.Qb4 Bb4 18.Ke2+–; 16.Rd5 Qb4 17.Bc3 Qb3 18.ab3 Ne7+–) 1–0. Grehl,Siegfried – Fiedler, corr SOK–89–28, 1989.

5.e3 Ne7 6.Nc3 Bd7 7.Be2 Nbc6 8.Qb3 g5.

5.f4 e4 6.Nh3 Be7 7.Bg2 0-0 8.0-0 Ng4 9.e3 Nd7 10.Nf2 Ndf6 11.Ng4 Ng4 12.Bh3 Nh6 13.d3 ed3 14.Qd3 Be6 15.Nd2 Qe8 16.b5 Qh5 17.Bg2 Ng4 18.h3 Nf6 19.a4 (19.Bb7 Qh3 20.Ba8 Ng4+/–) 19...Rab8 20.Rac1 Bd8 21.Bd4 b6 22.Nf3 h6 23.Bf6 Bf6 24.Nd4 Bd4 25.ed4 (worse is 25.Qd4 Rbe8=) 25...Rfe8 26.Bc6 Re7 27.Rce1 Qf7 28.d5 Bd7 29.Re7 Qe7 30.Rf2 Bc6 31.dc6 Re8 32.Qd5 Qf7 33.Kf1 Qd5 34.cd5 Re4 35.Re2 Ra4 36.Re7 Rb4 37.Rc7 Rb5 (better is 37...Rb1!? 38.Ke2 Rb2 39.Kd3 Rb5+/–) 38.Ra7+– Rc5 39.Rb7 (39.Rd7 b5+–) 39...b5 (39...Kh7 40.Rb8+/– (40.Rb6?! Rd5 41.Ke2 Rc5+=)) 40.c7 (better is 40.Rd7!?+–) 40...Kh7+/– 41.Rb5 Rc7 42.Rb6 Rd7 43.Ke2 Kg6 44.Kd3 Kf6 45.Kd4 Ke7 46.Rb8 Rc7 47.Rg8 Kf7 48.Rd8 Ke7 49.Rb8 Kf7 50.g4 fg4 51.hg4 Kg6? (better is 51...Ra7 52.Rb6 Ra4 53.Ke3 Ra3 54.Ke4 Ra4 55.Kf3 Ra3 56.Kf2 Ke7 57.Rb7 Kf6=) 52.Rd8+– Rf7 (52...Kf7 53.Rd6 Ke7 54.Re6 Kd8 55.Ke5+–) 53.Rd6 Kh7 54.f5 g6?? (54...h5+–) 55.Rg6 Ra7 56.Ke5 1–0. tyop (1710) – emiliux, internet, 2013. (=1.c4 e5 2.b4 d6 3.Bb2 f5)

5.Bg2 (--> 1.b4 e5 2.Bb2 d6 3.g3 f5 4.Bg2 Nf6 5.c4).

5.Na3 Be7 6.Nc2 h6 (6...0-0 7.e3=+) 7.e3 a5 8.Nf3 (8.b5 e4=) 8...ab4=+ 9.Nb4 c5 10.Nd5 Nd5 11.cd5 0-0 12.d3 Bd7 13.Nd2 Ba4 14.Qh5 Nd7 15.g4 (15.Be2 Qa5=+) 15...fg4 (15...f4 16.e4-+) 16.hg4 (16.Qg4 Nf6 17.Qg2 Qe8=+) 16...Bg5 (better 16...Nf6 17.Qh3 Nd5-/+) 17.Nf3?? (better 17.Ne4 Nf6 18.Nf6 Bf6 19.Bc3-/+) 17...Rf3-+ 18.Qg6 (18.Bc1-+) 18...Qa5 19.Ke2 Raf8 20.Rh2 Nf6 (20...Bh4! 21.Qe6 Kh7 22.Qf5 R3f5 23.gf5-+) 21.Rh6 (21.Kf3 Be8 22.Qf5-+) 21...Ng4 (better 21...Bh6 22.Kf3 Qd2-+) 22.Qe6?? (better 22.Qh7 Kf7 23.Qg6 Kg8 24.Qh7 Kf7 25.Qg6 Kg8=) 22...R8f7-+ 23.Qg4 Rf2 0-1. zomboeb - kibk3, lichess.org, 2019.

5.e3 c6 6.g4? (better 6.d4!?=) 6...fg4-/+ 7.Nc3 gh3 8.Nh3 Be6 (8...d5 9.a3-/+) 9.Ng5 Qe7 (9...Bf5 10.e4 Bg4 11.Be2 Be2 12.Qe2=+) 10.Ne6 Qe6 11.Bh3 (11.d4 ed4 12.Qd4 Nbd7=+) 11...Qe7 Black intends e4 (11...Qc4!? 12.b5 a6 13.bc6 Nc6-+) 12.Qf3 (12.d3 Nbd7=+) 12...Nbd7 (12...e4 13.Qe2-/+) 13.0-0-0 (13.d3 Qf7=+) 13...0-0-0 (13...a5 14.b5 cb5 15.Nb5=+) 14.d4 (14.d3 Kb8=+) 14...e4-/+ 15.Qe2 d5 16.cd5 (16.b5 Qd6=+) 16...cd5-/+ 17.Ba3 (17.a3-/+) 17...a5 (better 17...Kb8-+) 18.Qb5 ab4 19.Bb4?? (19.Qa5 Qd6 20.Nb5 Qc6 21.Kd2+/-) 19...Qb4-+ 20.Qb4 Bb4 21.Nb5 Kb8 22.Kb2 Nb6 23.Rc1 Nc4 24.Kb3 Ba5 25.a4 (25.Be6 h6-+) 25...b6 (25...g5 26.Rhg1 Nd2 27.Kc2-+) 26.Rhg1 g6 27.Rg5 Rhg8 28.Be6 Rg7 29.Nc3 (29.Rc4 dc4 30.Kc4 Be1-+) 29...Nd2 30.Ka2 (30.Kb2 Rd6 31.Bh3 Bc3 32.Rc3 Ra7-+) 30...Bc3 31.Rc3 Nf3 (31...Ra7!? 32.Kb2-+) 32.Rg3 g5 (32...Ra7 33.Kb3-+) 33.Kb3 h5 Black prepares g4 34.Kb4 (34.Rh3 Rd6 35.Bc8 Rc7-+) 34...h4 35.Rh3 g4 36.Rh1 h3 (better 36...g3!? 37.fg3 hg3 38.Bh3-+) 37.Kb5 Kb7 (37...Rc7 38.Rc6 Rc6 39.Kc6-+) 38.a5 (38.Rc6-+) 38...ba5 39.Ka5 (39.Rc6 Ka8-+) 39...Ra8 40.Kb4 Ra6 (better 40...Ra2 41.Rc5 Rc7 42.Bd5 Nd5 43.Rd5 Rf2 44.Rb5 Kc8-+) 41.Bc8-/+ Kb6 42.Ba6 Ka6 (better 42...Rc7 43.Be2 Rc3 44.Kc3 Nh4-/+) 43.Ra1?? (better 43.Rc6 Kb7 44.Rf6+=) 43...Kb6 (43...Kb7 44.Rca3 Nd7 45.Ra6-+) 44.Kb3 (44.Rca3 Rb7 45.Ra6 Kc7 46.Kc5-+) 44...h2 (44...Ra7 45.Ra7 Ka7 46.Rc8-+) 45.Kc2 Rh7 (better 45...Rb7 46.Rh1 Ka7-+) 46.Rb1 Ka5 47.Ra3 1-0. zomboeb (1620) - Darkezot (1630), lichess.org, 2019.

5.e3 Be7 6.Nf3 0-0 7.Qb3 Kh8 (7...e4 8.Nd4=+) 8.Ng5 (8.Be2 e4 9.Nd4 c5=+) 8...h6 9.Nf7?? (better 9.Nf3=+) 9...Rf7-+ 10.c5 (10.Be2 a5-+) 10...d5 (10...Rf8 11.b5-+) 11.Nc3 (11.Be5 a5-+) 11...Be6 (11...a5 12.a3-+) 12.f4 (12.Ne2 Nfd7-+) 12...ef4 13.ef4 c6 (13...b6 14.d4-+) 14.0-0-0 (14.Be2 a5 15.a3 ab4 16.ab4 Ra1 17.Ba1 b6-+) 14...Ne4 (14...a5 15.d4-+) 15.Re1 (15.Ne4 fe4 (worse 15...de4 16.Qe6 Qd5 17.Bc4 Qe6 18.Be6+/-) 16.d3 Rf4-+) 15...Nc3 (better 15...a5 16.g4 ab4 17.Ne4 fe4 18.f5-+) 16.Bc3 (16.Re6 Ne4 17.g4 a5 18.gf5 Nf6-+) 16...Bd7 17.Bd4 (17.g3 b6-+) 17...Bf6 18.Qc3 (18.Bf6 Rf6 (18...gf6?! 19.d4-+) 19.d4 a5-+) 18...Bd4 19.Qd4 Qf6 (19...b5 20.Bd3-+) 20.Re5 (20.Qf6 Rf6 21.d4 a5 22.ba5 Ra5-+) 20...Na6 (20...Be6 21.Qb2-+) 21.a3 (21.Ba6 ba6 22.Rhe1 Rb8-+) 21...Nc7 22.Bd3 (22.g3 Ne6 23.Qc3 a5-+) 22...Nb5 (better 22...Ne6 23.Qf2 a5-+) 23.Bb5 cb5 24.Rhe1 (24.Rd5 Qe6-+) 24...Bc6 25.g3 a5 26.Kb2 (26.Kd1 ab4 27.ab4 Qg6-+) 26...ab4 27.ab4 Kh7 28.h4 (28.Kc1 Qg6 29.R1e3 Qh5-+) 28...h5 29.Qd3 g6 (29...Ra4 30.Qc3-+) 30.Kb3 (30.Kc2 Ra2 31.Kd1 d4-+) 30...Qd8 31.Re6 (31.Qd4 Ra6-+) 31...Qh8 (31...d4 32.Kb2 Qd5 33.Qb3 Qb3 34.Kb3 Bd5 35.Kc2 Be6 36.Re6-+) 32.Rd6 (32.Kc2 d4-+) 32...Re8 (32...Ra6 33.Qc3 Qa8 34.Qb2-+) 33.Ree6 (33.Re8 Qe8 (33...Be8?! 34.Rd5 Qa1 35.Rd8 Qa4 36.Kb2 Qb4 37.Qb3-+) 34.Qc3 b6-+) 33...Re6 34.Re6 Qf8 (34...Qa1 35.Qc3 Qb1 36.Qb2-+) 35.Qe2 (35.Qe3 Qd8 36.Qe5 d4-+) 35...Qg7 (35...Qa8 36.d4 Qa4 37.Kc3 Qa3 38.Kc2 Qb4 39.Qe5 Qc4 40.Kb2-+) 36.Re5 (36.Qe5 Qe5 37.Re5 d4-+) 36...d4 37.d3 Rd7 (37...b6 38.cb6 Rb7 39.Qc2-+) 38.Kb2 Kh6 (better 38...b6 39.Re6 Bd5 40.Rd6-+) 39.g4 (39.Re6-+) 39...hg4 40.Re6 (40.Qf2 Qf6-+) 40...Bd5 41.Rb6 (41.Re8 Qf6-+) 41...Bc6 42.Qe6 (42.Qf2-+) 42...Re7 43.Qd6 (43.Qb3 Re2 44.Ka3 Qf8-+) 43...Re2 (43...g3 44.Qe5 Re5 45.Kc2 Qg8 46.Ra6 Re2 47.Kd1 Qb3 48.Ke2 Qb2 49.Ke1 g2 50.Rc6 g1Q) 44.Kc1 Rh2 (44...g3 45.Qd8 Re7 46.Kb2-+) 45.h5 (45.Qd8-+) 45...Rh5 46.Qb8 Rh3 (46...g3 47.Qd8 g2 48.Kc2 g1Q 49.Qe8 Rh2 50.Qe2 Re2 51.Kb3 Qb1 52.Ka3 Qd3) 47.Qa7 (47.Qd8 g3 48.Kd1 Bf3 49.Kc2 Rh2 50.Kc1 g2 51.Qg5 Kh7-+) 47...Rd3 (47...Qe7 48.Kd2 Rh2 49.Kd1 Bf3 50.Kc1 Qe1) 48.Kc2 (48.Qb8 Kh7 49.Rb7 Qb7 50.Qd8 Qf7 51.Qh4 Kg7 52.Qf2 Rc3 53.Kb1 Be4 54.Ka1 Rc1 55.Kb2 Rb1 56.Ka3 Qb3) 48...Rc3 49.Kd2 (49.Kb1 Qe7 50.Qa4 Qe1 51.Ka2 Qd2 52.Qc2 Rc2 53.Kb3 Qd3) 49...Rc4 (49...Qe7 50.Qb8 Qe3 51.Kd1 Bf3) 50.Kd3 Rb4 (50...Qe7 51.Kd2 Qe3 52.Kd1 Rc1) 51.Rc6 bc6 (51...Qe7 52.Qa2 Qe3 53.Kc2 Qe2 54.Kc1 Qa2 55.Rg6 Kg6 56.c6 Rb1) 52.Qb6 Rb3 (52...Qe7 53.Qb5 Qe4 54.Kd2 cb5 55.Kd1 Qb1 56.Kd2 Rb2) 53.Kd2 (53.Kc2 Qf7 54.Qb5 cb5 55.Kc1 Qc4 56.Kd1 Rb2 57.c6 Qf1) 53...Qd7 (53...d3 54.Qc6 Qc3 55.Ke3 d2 56.Ke2 Qe3 57.Kf1 d1Q 58.Kg2 Qg3) 54.Qa5 Qd5 55.Qd8 (55.Qa6 Qg2 56.Kc1 Rb2 57.Qc6 Qd2) 55...Qg2 56.Kc1 Qb2 57.Kd1 Qb1 58.Ke2 (58.Kd2 Rb2) 58…Rb2 0-1. zomboeb – Bluffthequeenside, lichess.org, 2019.

5.b5 a5 6.Nc3 b6 7.e3 Bb7 8.Nf3 g6 9.Be2 Bg7 10.d4 0-0 11.de5 Ng4? (11...de5 12.Ne5 Qe8 13.Nf3+=) 12.0-0 (better 12.ed6 cd6 13.0-0+-) 12...Ne5+= 13.Ne5 de5 14.Bf3 (14.Qb3 Kh8+=) 14...e4 15.Be2 Nd7 16.Qc2 Nc5 17.Rad1 Qg5 18.Nd5 (better 18.Ba3+=) 18...c6? (better 18...Bb2 19.Qb2 Na4=) 19.bc6 (19.Nb6 Rad8 20.Ba3 Nd3 21.Bf8 Bf8+-) 19...Bc6 20.Bg7 Kg7 21.Nb6 (21.Qb2 Kg8 22.Qb6 Ba4 23.Qc5 Bd1 24.Rd1 a4+-) 21...Rab8 (21...Ra6 22.Rb1+/-) 22.Nd5 (22.Qc3 Kh6 23.Qa5 Na4 24.Na4 Ra8+-) 22...h5? (better 22...Na4!? 23.Qd2 Bd5 24.cd5 Rb4+=) 23.Qc3+- Kh7 (better 23...Kh6+-) 24.Qa5 Na4 (24...Bd5 25.Rd5 Ne6+-) 25.Qc7 Kh6 26.Qc6 Nb2 27.Rb1 Nd3 (27...h4 28.Qd6 Rbd8 29.Qa3+-) 28.Bd3 ed3 29.Nf4 Rb1 30.Rb1 h4 (30...d2 31.Rd1+-) 31.Qd5 h3 (31...Qd8 32.Rd1+-) 32.Nh3 (32.Ne6!? Qf6 33.Nf8 Qf8 34.gh3 Qf6+-) 32...Qg4 (32...Qd8 33.Rd1+-) 33.Qd3 Rc8 (33...Qe4 34.Qe4 fe4 35.c5+-) 34.Nf4 g5 (34...Qg5 35.Rb6 Rg8+-) 35.h3 (35.Rb6 Kg7 36.Rb7 Kg8 37.Qd5 Kh8 38.Ng6) 35...Qh4 (35...gf4 36.hg4 Rf8 37.Rb6 Kg5 38.ef4 Kg4 39.Qg3 Kh5 40.Qg5) 36.g3 (36.Qd6 Kg7 37.Rb7 Rc7 38.Qc7 Kg8 39.Qg7) 36...Qh5 (36...Rg8 37.Qd6 Kh7 38.Rb7 Rg7 39.Qg6 Kg8 40.Qg7) 37.Nh5 (37.Qd6 Kh7 38.Rb7 Kg8 39.Qe6 Qf7 40.Qf7 Kh8 41.Qg7) 37...Rd8 (37...Rc6 38.Qf5 Rd6 39.Qf8 Kh5 40.g4 Kg6 41.Qd6 Kf7 42.Rb7 Ke8 43.Qe7) 38.Qd8 Kh5 (38...f4 39.Rb6 Kh7 40.Qe7 Kg8 41.Rb8) 39.h4 (39.Rb6 f4 40.Qe8) 39...g4 (39...gh4 40.Qh4 Kg6 41.Rb6 Kf7 42.Qh7 Ke8 43.Rb8) 40.Qg5 1-0. BeepBeepImAJeep (2575) - bobancio (2340), lichess.org, 2016.

5.b5 c6 6.Nc3 Be7 7.e3 0-0 8.Nf3 a6 9.Be2 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.d4 e4 13.Ng5 Qe8 (13...Nb6!?=) 14.Ne6+= Rf7 15.Nf4 Nf8 16.h4 (16.d5!?+=) 16...Ne6= 17.Ne6 Be6 18.g3 d5 19.c5 Ng4 20.Qa2 Rf8 21.b6 Qa8 22.Qa8 Ra8 23.0-0 Kf7 24.Ra1 Ra1 25.Ba1 Ke8 26.Ba6 Bc8 (26...ba6?? 27.b7 Bd7 28.b8Q Kf7 29.Qb7+-) 27.Be2 Nf6 28.Na2 Nd7 29.Nb4 (29.Bb2 Nf6=) 29...Nc5 (better 29...Nb6 30.Nc6 bc6 31.cb6 Bd8-/+) 30.dc5+= Bc5 31.Nc2 Bb6 32.Bg7 Kf7 33.Bd4 c5 34.Bb2 Ba5 35.Bb5 Ke6 36.Kf1 Bd7 37.Bd7 (37.Na3 Bc7=) 37...Kd7=+ 38.f3 b5 39.g4 ef3 (better 39...fg4!? 40.fg4 b4=+) 40.gf5+= b4 41.Kf2 (41.h5 c4 42.Nd4 c3+=) 41...c4= 42.Bd4 b3 43.Na3?? (better 43.Na1+=) 43...c3-+ 44.Kf3 c2 (better 44...Bb4!?-+) 45.Bb2=+ Bd2 46.e4 de4 47.Ke4 c1Q 48.Bc1 Bc1 49.Nb5 b2 50.Nc3 Ke7 51.Ke5 (51.Nb1 h5 52.Ke5 Be3 53.f6 Kf7-+) 51...Bd2 52.f6 (52.Nb1 Be1 53.h5 Bg3 54.Kd4 Kf6-+) 52...Kf7 53.Nb1 Be1 54.Kf5? (better 54.h5-+) 54...Bh4 55.Nd2 Bf6 56.Nb1 h5 57.Kf4 h4 58.Kg4 Ke6 59.Kh3 Kd5 60.Kg4 Bc3 (better 60...Kc4 61.Kf3 Kd3 62.Kg2-+) 61.Kh3?? (better 61.Nc3 Kc4 62.Nb1-+) 61...Kc4 (61...Bb4 62.Kg4-+) 62.Na3 (62.Kh4 Kb3 63.Nc3 Kc3 64.Kg5-+) 62...Kb3 63.Nb1 Kc2 (63...Bb4 64.Kg4-+) 64.Na3 (64.Nc3 Kc3 65.Kh4-+) 64...Kb3 65.Nb1 Ka2 (better 65...Bb4-+) 66.Nc3 Ka1?? (better 66...Kb3 67.Nb1 Kc2 68.Na3 Kd3 69.Kh4 Kc3-/+) 67.Kh4= b1Q 68.Nb1 ½-½. BeepBeepImAJeep (2585) - bobancio (2330), lichess.org, 2016.

5.g3 Be6 6.Bg2 Bc4 7.Bb7 Nbd7 8.Ba8 Qa8 9.Nf3 e4 10.Nd4 e3 11.f3 d5 12.Nf5 Bb4 13.Bc3 a5 14.Bb4 ab4 15.de3 0-0 16.0-0 Nh5 17.Ne7 Kh8 18.Nd5 Bd5 19.Qd4 c5 20.Qd3 Ne5 21.Qd2 Rd8 22.e4 Be4 23.Qg5 Qd5 24.Qh5 Nf3 25.ef3 Qh5 26.fe4 h6 27.a5 c4 28.a6 c3 29.a7 Ra8 30.Re1 Qc5 31.Kg2 Ra7 32.Ra7 Qa7 33.e5 Qa2 34.Kf3 c2 35.Nd2 c1Q 36.Rc1 Qd2 37.Rc8 Kh7 38.e6 Qd5 39.Kf4 Qe6 40.Rb8 Qd6 41.Ke4 Qb8 0–1. wk1234 – sooncomer, internet, 2014.

6.Nc3 0-0 7.e3 Be6 8.Nf3 Nbd7 9.Be2 h6 10.0-0 b6 (10...a6 11.d4=) 11.d4+= e4 (11...a6 12.d5 Bf7 13.Qc2+=) 12.Nd2 (12.Nh4 d5 13.Ng6 Re8+/-) 12...d5 13.f3 (13.Qb3 dc4 14.Bc4 Bc4 15.Qc4 Kh8+/-) 13...ef3 (better 13...dc4!? 14.fe4 fe4+/-) 14.Bf3+/- (14.Rf3?! Rc8+=) 14...Ne4 (14...Bb4!?+/-) 15.cd5+- (15.Nde4?! de4 16.Be2 Bd6+=; 15.Nce4?! de4 16.Bh5 Nf6+=; worse 15.Nd5 Bd5 16.cd5 Ndf6+/-) 15...Nd2 (15...Bf7 16.Be4 fe4 17.Nde4+-) 16.de6 (16.Qd2 Bf7 17.d6 cd6 18.Ba8 Qa8 19.Rf5 Bc4 20.Rf8 Qf8+-) 16...Nf3 (16...Nf1 17.Qf1 (17.Kf1?! Nf6+/-; 17.Ba8?! Ne3 18.Qe2 f4+/-) 17...Nf6 18.Ba8 Qa8 19.Qf5+-) 17.Qf3 (17.gf3?! Nf6+/-) 17...Nf6 18.d5 (18.Qf5!? Bb4+-) 18...Ng4 19.h3 (19.Ne2 Bd6 20.Nf4 a6+-) 19...Ne5? (19...Ne3 20.Rf2 (worse 20.Qe3 Bc5 21.Qc5 bc5-/+) 20...f4 21.a5+=) 20.Qg3 (20.Qe2 Bc5+-) 20...Bd6? (better 20...Nc4!? 21.Ra2 Bd6+=) 21.Ne2 Qf6 22.Nf4 g5 (22...Nf3 23.Qf3 Qb2 24.Rfb1+-) 23.Nh5 (23.a5 ba5 24.Bd4 Qd8+-) 23...Qg6? (better 23...Nf3 24.Qf3 Qb2+-) 24.Be5 Be5 (24...Qh5 25.Bd6 cd6 26.Qd6+-) 25.Qe5 Qh5 26.Rac1 Qg6 27.Rc7 Rae8 28.Rfc1 (better 28.Ra7 g4 29.h4 h5+-) 28...Qf6 Black prepares f4 (28...f4+-) 29.Qf6 Rf6 30.Rd7 (30.Ra7 f4 31.ef4 gf4+-) 30...f4 31.e4 f3 (31...Rg6 32.Ra7 Rg7 33.Ra6+-) 32.g3 (32.gf3 a5+-) 32...f2 (32...h5 33.Rcc7 Rg6 34.Ra7+-) 33.Kf1 Rf3 (33...Rg6 34.Ra7 g4 35.h4+-) 34.Rcc7 Rg3 35.Rg7 Kh8 36.Rh7 Kg8 37.Rcg7 Kf8 38.Rf7 (38.Ra7 Kg8 39.Rag7 Kf8+-) 38...Kg8 39.Rhg7 (39.e7 Re7 40.Re7 Re3+-) 39...Kh8 40.Kf2 (better 40.e7 Re7 41.Re7+-) 40...Rh3 (40...Ra3 41.e7 Re7 42.Re7 Ra2 43.Kg3 Ra4 44.Rg6 Ra3 45.Kg4 h5 46.Kg5 Rf3 47.Kh6 Rf7 48.Re8 Rf8 49.Rf8) 41.Rh7 Kg8 42.Rhg7 (42.Rfg7 Kf8 43.Rg6 Rh2 44.Kg3 Re6 45.de6 Rh3 46.Kh3 g4 47.Rg4 h5 48.Rf7 Ke8 49.Rg8) 42...Kh8 43.Rh7 Kg8 44.Rfg7 Kf8 45.Kg2 (45.Rg6 Rf3 46.Kf3 g4 47.Rg4 Re6 48.de6 h5 49.Rf7 Ke8 50.Rg8) 45...Re3 (45...Ra3 46.e7 Re7 47.Re7 Ra2 48.Kf3 Ra4 49.Rb7 Ra3 50.Kg4 h5 51.Kg5 Kg8 52.Rbg7 Kf8 53.Kh6 a5 54.Rh8) 46.e7 (46.Rg6 Re2 47.Kf3 g4 48.Ke2 Re6 49.de6 h5 50.Rf7 Ke8 51.Rg8) 46...Re7+- 47.Re7 Kg8 48.Rhg7 (48.Reg7 Kf8 49.Ra7 Kg8 50.Rhc7 Re2 51.Kf1 Rf2 52.Kf2 h5 53.Rc8) 48...Kf8 49.Rgf7 (49.Ref7 Ke8 50.Ra7 Kf8 51.Rgf7 Ke8 52.Rh7 Re2 53.Kf3 Rf2 54.Kf2 h5 55.Rh8) 49...Kg8+- 50.Ra7 (50.Ra7 Re4 51.Rg7 Kh8 52.Rgb7+-) 1-0. BeepBeepImAJeep (2660) - lnaveran (1980), lichess.org, 2017.

6.Nc3 a6 7.e3 ab5 8.ab5 Ra1 9.Qa1 0-0 10.Nf3 Be6 11.Be2 Qe8 12.d4 e4 13.Nd2 (13.Ng5 Bc8+=) 13...c6 (13...Qg6 14.Bf1 Nbd7 15.d5=) 14.g3 (14.d5 cd5 15.cd5 Bc8+= (worse 15...Nd5 16.Nd5 Bd5 17.Bg7+/-)) 14...Qf7 (14...Nbd7 15.Qa7 Qa8 16.Qa8 Ra8 17.h3=) 15.h4 (15.Qa7 d5 16.c5 cb5 17.Bb5 Bd7+=) 15...Ng4 (15...Nbd7 16.Qa5=+) 16.Nd1 (16.d5 cd5 17.cd5 Bc8=) 16...g5 (better 16...cb5!? 17.d5 Bd7=+) 17.hg5+/- Bg5 18.Bg4 (18.Nc3!?+/-) 18...fg4= 19.Ne4 Qf5? (better 19...Be7!? 20.Nd2 Bc4 21.Nc4 Qc4=) 20.Ng5 (20.Nd6!? Qf3 21.Rh5 h6+-) 20...Qg5+/- 21.Qb1 Bf5 22.Qc1 Be4 23.Rh2 cb5 24.cb5 (24.Nc3 Bd3 25.cb5 A) 25...Bb5? 26.Qc2 (26.Nb5?! Qb5 27.d5 Qb4 28.Kf1 Qb5 29.Kg1 Qd5+/-) 26...Rf7 27.d5+- (27.Nb5?! Qb5 28.Qc8 Kg7 29.Qg4 Kf8+-); B) 25...Qf5+/-) 24...Qb5+= 25.Nc3 Qb4 26.Qd2 (26.Ba3 Qa5 A) 27.Bd6 Rc8 28.Kd2 Qa6 29.Ne4 Rc1 30.Kc1 Qc6 31.Kd2 Nd7-/+ (31...Qe4?! 32.Bb8 Kf7 33.Rh5=); B) 27.Rh4+/-) 26...Bf3= 27.Ne2 Qb5 (27...Nc6 28.Rh5=+) 28.Nf4 (28.d5 Nd7 (28...Bd5?? 29.Qc3 Qd7 30.Rh6+-) 29.Qc2 Rf7+=) 28...Nc6 29.Qd3 Qa5 30.Bc3 Qf5 31.Qf5 Rf5 32.Kd2 b5 33.Bb2 b4 (33...d5!?=+) 34.Rh6= Na5 35.Rd6?? (better 35.Kd3 d5 36.Rb6=) 35...Nc4-+ 36.Kc2 Nd6 37.Kd3 (37.Ba1 Rb5 38.Bb2 Rb6-+) 37...Ne4 (better 37...Be4!? 38.Kd2 Nc4 39.Kc1-+) 38.Kc4 Nf2 39.Kb4 Nd1 (better 39...Nh1!? 40.Kc4-+) 40.Bc1 h5 41.Kc4 Be4 (better 41...h4 42.gh4 Rf4 43.ef4 Be2 44.Kd5-+) 42.d5 (42.Kb4 h4! 43.Ng6 hg3 44.Ne7 Kf7 45.Nf5 Bf5-+) 42...Nf2 (better 42...Rd5! 43.Kb4 h4 44.gh4-+) 43.d6 (43.Bd2 Bh1-+) 43...Kf7 44.Kd4 Ke8 45.Bd2 (45.Ba3-+) 45...Kd7 (better 45...Bb7-+) 46.Be1 Nh3 47.Ke4 Nf4?? (better 47...Rb5-+) 48.Kf5+/- Ng2 (better 48...Nd3!? 49.Bd2 Kd6+/-) 49.Bf2+- Kd6 50.Kf6?? (better 50.Kg5 Ke6 51.Kh5+-) 50...Kd5= 51.Kf5 Kc4?? (51...Kd6 52.Kg5 Ke5 53.Kh5 Kf5 54.e4 Ke5+-) 52.e4+- Kd3 53.e5 Ke2 (53...h4 54.Kg4 hg3 55.Bb6+-) 54.e6 (better 54.Bc5 Kf3 55.e6+-) 54...Kf2 55.e7 Kg3 (55...Ne3 56.Kg5 h4 57.e8Q hg3 58.Qf7 Ke1 59.Qf4+-) 56.e8Q h4 (56...Kh4 57.Qg6+-) 57.Qb8 (better 57.Qe2!? h3 58.Qg4 Kf2 59.Qh3 Ne1+-) 57...Kh3 58.Qb3 g3 59.Kg5 Kh2 60.Qb4 1-0. BeepBeepImAJeep (2580) - bobancio (2335), lichess.org, 2016.

5.Nc3 Be7 6.Nf3 0-0 7.e3 e4 8.c5 d5.

5.e3 a5 6.Qa4 Bd7 (6...Nbd7 7.d4 Be7 8.de5 de5) 7.b5= Qe7 8.Nf3 c5.

5.e3 Nbd7 6.d4 Be7 7.Nh3 ed4 8.ed4 d5.

5.e3 Be7 6.d4 (6.Ne2 a5 7.b5 Be6 8.d4 Nbd7; 6.Be2 a5 7.ba5 Nc6 8.Nf3 Na5) 6...a5 7.b5 e4 8.Nc3 Nbd7.

5.Nf3 Be7 6.Nc3 0-0 7.Rd1 e4 8.Nd4 c5.

5.h4 a5 6.a3=+.

5.h4 h5 6.d3 (6.Nf3!?+=) 6...Be7= 7.Nd2 Be6 8.Ngf3 Nbd7 (8...Ng4!?=) 9.Ng5+= Bg8 10.e3 d5 11.d4 e4 12.f3 (12.Be2 Nf8+/-) 12...ef3 13.Ndf3 (better 13.gf3!? Nh7 14.Nh7 Bh4 15.Kd1+=) 13...Ne4= 14.Rh3 (14.c5!?=) 14...Bg5-/+ (worse 14...Ng5 15.hg5 dc4 16.Bc4 Bc4 17.Qc4=+) 15.cd5?? (15.hg5 Ng5 16.Rg3 Nf3 17.gf3 Qh4-/+) 15...Qe7 (better 15...Be7 16.g3 c6-+) 16.hg5 (16.Ng5 Bd5 17.Bc4 Ng5 18.hg5 Bg2-/+) 16...Ng5 (better 16...Bd5 17.Qa3 Ng5 18.Ng5 Qg5-+) 17.Ng5=+ Qg5 18.0-0-0? (18.Qc2 Bd5 19.Qc7 Qe7= (19...Bg2?? 20.Rg3 Qh4 21.Bg2+-)) 18...f4?? (better 18...0-0-0-/+) 19.ef4+= Qf4 20.Re3 Kd8 21.Kb1 (21.Rde1!?+=) 21...Bd5=+ 22.Qd5 Qe3 23.Qb7 Rb8 24.Qa6? (better 24.Qa7 Rb4 25.Qa8 Rb8 26.Qd5-/+) 24...Rb4-+ 25.Qa7 (25.Qe2 Qe2 26.Be2-+) 25...Rf8 26.Bd3 (26.Ka1 Qf2 27.Qa3 Rb2 28.Qb2 Qf1 29.Qd2-+) 26...Rf2 27.Bc2 (27.Qa3 Rbb2 28.Qb2 Rb2 29.Kb2 Qf2 30.Bc2 Qg2 31.Kc3-+) 27...Qc3 28.Qa8 Rb8 (28...Ke7 29.Qe4 Kd6 30.Qg6 Nf6 31.Qg3 Qg3 32.Rd3 Rf1 33.Rd1 Qc3 34.Kc1 Rb2 35.Rf1 Qc2) 29.Qb8!!+- Nb8 30.Bc3 Rg2 31.Be4 Rf2 (31...Rg4 32.Bf3 Rg3 33.Rf1+-) 32.Bg6 h4 33.Re1 (33.Rh1 Rf6 34.Rh4 Rg6 35.Rh8 Ke7 36.Rb8 Ra6+-) 33...Kd7 (33...Rf6 34.Be4 Nd7 35.Bd2+-) 34.Re5 h3 (34...Rf4 35.Bf5 Kc6 36.Be4 Kd7 37.Bd2+-) 35.Bf5 Kd6 (35...Kd8 36.Rd5 Ke8+-) 36.Bh3 Nc6 37.Re6 (better 37.Rg5 Rf3 38.Rg6 Ke7 39.Rg7 Ke8+-) 37...Kd5 38.Re3 g5 (38...Nd4 39.Re7 Rh2 40.Rd7 Kc6 41.Rg7 Rh3 42.Bd4 Rd3+-) 39.Be6 Kd6 40.d5 Nd8 (40...Rf1 41.Kc2 Nd8 42.Be5 Ke7 43.Bh3 Rf2 44.Kb1+-) 41.Be5 Kc5 42.Bc7 (42.Rc3 Kb4 43.a3 Kb5 44.Bd7 Ka6 45.Bc8 Kb5 46.Bc7 Nf7 47.Bd7 Ka6+-) 42...Nb7 (42...Rf8+-) 43.d6! Nd6 (43...Nd6 44.Rc3 Kd4+-). beatmeeasy (1945) - savoirfaire (1955), lichess.org, 2020.

6.Be2 Be7 7.d3 (7.Nf3!?+=) 7...0-0 (7...a5 8.a3=+) 8.Nd2 a6 (8...a5!? 9.a3 ab4 10.ab4 Ra1 11.Ba1 Nc6=) 9.Ngf3+= b5 10.Ng5 Qd7 11.Ne6 Qe6 12.a4 (12.cb5 d5 13.ba6 Na6+/-) 12...ba4 (12...bc4!? 13.dc4 a5=) 13.Qa4 Nbd7 Black prepares e4 (13...d5 14.0-0+/-) 14.Bd1 (14.Qc6 Rab8 15.Nf3 A) worse 15...Rb4 16.Ng5 Nb8 17.Ne6 (worse 17.Qc7 Qd7 18.Qd7 Nbd7=) 17...Nc6 18.Bc3+/- (18.Nf8?! Rb2 19.Ne6 Nb4=); B) 15...Nc5+=) 14...Nb6 (14...d5 15.0-0 c6 16.Nf3+=) 15.Qa2 e4 16.d4 White prepares the advance c5 16...f4 17.Bb3 (better 17.0-0!?+/-) 17...Kh8 (17...c6 18.ef4 e3 19.fe3 Qe3 20.Kd1 Qf4 21.Re1=) 18.c5 (18.h3!?=) 18...Nbd5=+ 19.0-0-0? (19.0-0 f3 20.h3 Qf5-/+) 19...c6 (19...Qf5 20.g4 fg3 21.fg3 Nb4 22.Qa5 Nd3 23.Kb1-+) 20.Rhe1 (20.ef4 Qf5 21.Qa4 Nf4-+) 20...Qf5-+ 21.Bd5 Nd5 22.Qb3 a5 (better 22...fe3!? 23.fe3 Rfb8-+) 23.ba5-/+ Ra5 24.cd6 (24.ef4 Rb5 25.Qc2-+) 24...Bd6 25.Nc4 Rb5 (25...Rb8 26.Nd6 Qf8 (26...Rb3? 27.Nf5 Ra2 28.Re2+-) 27.Nf7 Kg8-+) 26.Qc2? (better 26.Nd6 Rb3 27.Nf5 Rf5 28.ef4 Rf4 29.Rd2=) 26...Nb4-+ 27.Nd6 Nc2 28.Nf5 Rfb8?? (better 28...Ne1 29.Re1 Rbf5-+ (29...Rff5?! 30.ef4 Rf4 31.f3-+)) 29.Re2 Nb4 30.Nd6?? (better 30.Bc3 Nd3 31.Kc2 Rf5 32.f3 Nb4 33.Bb4 ef3 34.gf3 Rb4 35.Ra1=) 30...Nd3?? (better 30...Na2 31.Kb1 Nc3 32.Kc2 Rb2 (worse 32...Ne2 33.Nb5 Rb5 34.Rd2+=) 33.Kc3 Re2 34.Ne4 fe3-/+) 31.Rd3!+- ed3 32.Rd2 Rb3? (32...Rh5 33.h3 (worse 33.Rd3 Rh2 34.e4 Rg2+/-) 33...f3 34.g4 Rh3 35.Rd3+-) 33.Nf7 Kg8 34.Ne5 fe3 35.fe3 c5? (35...Re8 36.Kb1 c5+-) 36.dc5 R8b5 (36...Rc8 37.Nd3 Rb7 38.Bd4+-) 37.Nd3 g5 (37...Rb7 38.c6 Rc7 39.Kc2 Rb2 40.Kb2 Rc6 41.e4+-) 38.c6 Kf7 (38...Rb8+-) 39.c7 Rd3 1-0. beatmeeasy (1910) - friendly06 (1845), lichess.org, 2020.

6.Nf3 Be7= 7.d4 e4 8.d5 Bc8.

6.g3 Be7=+ (6...e4 7.Ne2 Nc6 8.Nf4 Bf7) 7.Bg2 (7.d4 Nbd7=+ (7...ed4 8.Nf3 de3) 8.Nf3 e4; 7.Nf3 Bc8 8.d3 a5) 7...c6 (7...e4 8.f3 (8.Ne2 d5) 8...d5 9.c5-/+) 8.d3 (8.Nf3 a5=+ (8...b5 9.d3 a5=+); 8.Nh3 b5) 8...0-0 (8...Qb6 9.Nf3=+; 8...a5=+) 9.b5 (9.Nf3 h6=+) 9...Qc7 (9...Qd7 10.Ne2=+) 10.Nc3 Nbd7 11.Nge2 Kh8 (11...Nc5 12.Qc2=+) 12.a4 (12.0-0 a6 13.bc6 bc6=) 12...a6 (12...Nc5 13.Qc2=+) 13.0-0= Ng4 (13...Nc5 14.Qc2=) 14.Ba3 (14.h3 Ngf6=) 14...Rf6 (14...Kg8=) 15.Bh3 (15.h3!? Nh6 16.b6=) 15...Rh6=+ 16.Bg4 fg4 17.e4 (17.f4 gf3 18.Rf3 Bg4-/+) 17...Rf8 (17...Rf6 18.bc6 bc6 19.Rab1-/+) 18.Bc1 (18.Rab1 Rf3-/+) 18...Rh3 (18...Rhf6 19.Be3-/+) 19.bc6 (19.Be3 Rh5=+) 19...bc6 20.Nd1 (20.Bd2 Nc5 21.Qc2 Kg8-/+) 20...Qd8 (20...Nc5 21.Qc2-/+) 21.d4 (21.Qb7 Nc5 22.Qb4 Nd3-+) 21...ed4 (better 21...Rf3 22.Qc2 Qc7-/+) 22.Nf4? (better 22.Nd4 Nc5 23.Ne6 Nb3 24.Nd8 Rd8 25.Rb1 Nc1 26.Rc1=) 22...Rh6 (22...Bc4 23.Qc4 Ne5 24.Qe2 Rf4 25.Bf4 Nf3 26.Qf3 gf3 27.Rb1-+) 23.Ne6 (23.Kg2 Nc5 24.Qc2 Bg5-+) 23...Re6 24.Qd3 (24.Qb7 Qc8 (worse 24...Re4 25.Qc6 Nc5 26.Bf4-+) 25.Qb1 Qe8-+) 24...Ne5 25.Qe2 (25.Qc2 Nf3 26.Kh1 Qe8-+) 25...Nf3 26.Kg2 (26.Kh1 Qa5 27.Qd3 Qh5 28.h4 Bh4 29.Kg2 Bg5 30.Rh1 Qh1 31.Kh1 Rh6 32.Kg2 Rh2 33.Kf1 Rh1 34.Kg2 Rg1) 26...Bg5 (26...Qe8 27.Ra2-+) 27.Bg5 (27.Qd3 Bc1 28.Rc1 Qg5-+) 27...Qg5 (27...Ng5?! 28.Qg4 Qf6 29.f3 Ne4 30.Re1-/+) 28.Rh1 (28.c5 dc5 29.Ra2 c4-+) 28...Rh6 (better 28...Qh6 29.h3 gh3 30.Rh3 Qh3 31.Kh3 Ng1 32.Kg2 Ne2-+) 29.Rb1 Qh5 (29...Qh5 30.h3 gh3 31.Kf1 h2-+) 0-1. Diviak,Peter - Petras,Marian (1820), Stara Lubovna SVK, Boys Ch U18, 2012.

6.Nf3 Bg7 7.d4 e4 8.Nfd2 0-0 9.Nc3 a5 10.a4 (10.b5!?=) 10...ab4=+ 11.Qb4 Nc6 12.Qb3 Kh8 (12...Na5 13.Qc2=) 13.Ba3 (13.Be2 Qe7=) 13...Na5 14.Qc2 Be6 15.g3 (15.Be2 b6=) 15...g5 (15...Kg8 16.Rc1=+) 16.h4 (16.Rb1=+) 16...gh4 (better 16...g4!?=+) 17.Rh4+= c6 (17...Kg8 18.Ne2+=) 18.Be2 b5? (better 18...b6+=) 19.ab5+- cb5 20.Nb5 Rc8? (better 20...Nb7+-) 21.Nd6 Qd7 (21...Rb8 22.Rf4 Nd7 23.g4 fg4 24.Bg4 Rf4 25.Be6 (25.ef4?! Qg8 26.Be6 Qe6+-) 25...Rf2 26.Kf2 Qh4 27.Kg2 Qg5 28.Kf1 Rf8 29.Nf7 Rf7 30.Bf7 Qf6 31.Ke2 Qf7 32.Qe4 Qh5 33.Kd3+-) 22.Nc8 Rc8 23.c5 (23.Bb4 Nb7+-) 23...Rb8 24.Nc4 Nc4 25.Bc4 Nd5 26.Bc1 (26.Rh5 Bf7 27.Rh1 Qc7+-) 26...Bf6 (26...Nb4 27.Qe2+-) 27.Rh1 Kg7 (27...Nb4 28.Qe2 Bc4 29.Qc4 Nd3 30.Kf1+-) 28.Bd2 Nc7 29.Rb1 (better 29.Be6 Ne6 30.c6 Rc8+-) 29...Bc4?? (better 29...Rb1 30.Qb1 Bc4+=) 30.Qc4 (better 30.Rb8 Bd5 31.Qd1+-) 30...Rb1-+ 31.Bc1 Qb5 (better 31...Nd5!?-+) 32.Qb5-/+ Nb5 33.Kd2 Ra1 34.Kc2 Ra2 (34...Kg6 35.Rh2=+) 35.Bb2 Na3?? (better 35...Kg6 36.Kb3 Ra7=) 36.Kb3+- Rb2 37.Kb2 Nb5 38.Kb3 Nc7 39.Kc4 Nd5 (39...Ne8+-) 40.Kd5 f4 41.Kc4 1-0. ClayPigeons (2130) - DeBobster (2120), Rated Bullet game, lichess.org, 2021.

6.Nf3 Bg7 7.d4 e4 8.Ng5 0-0 9.Nc3 h6 10.Nh3 c6 11.a4 Na6 (11...g5 12.Be2=) 12.g3 (12.c5!? Kh7 13.cd6+=) 12...Nc7 13.Be2 Qe7 (13...g5 14.Ng1=+) 14.Rd1 (14.Nf4 Qf7=) 14...Qf7 (14...g5 15.Ng1=+) 15.b5 Be6 (15...g5 16.Ng1=) 16.Ba3 Rad8 17.bc6 bc6 18.Qb7? (18.Nf4=) 18...Rfe8?? (better 18...Rb8 19.Qa7 Ra8-+) 19.Qc6+= Ncd5?? (better 19...Rc8 20.Rc1 Na8=) 20.cd5+- Bd7 (20...Nd5 21.Nb5 Bf8+-) 21.Qd6 (better 21.Qa6+-) 21...Ba4 (21...Bf8!? 22.Qc7 Ba3+/-) 22.Qb4 (22.Na4 Rd6 23.Bd6 Qd7=+) 22...Bd1 23.Nd1 g5 (23...Nd5 24.Qa5 Kh7 25.Bb5+-) 24.0-0 (better 24.d6 a5 25.Qa4 Kh8+-) 24...Nh5? Black intends f4 (better 24...Bf8 25.Qa4 Ba3 26.Qa3 Nd5+-) 25.d6 f4 (25...Rb8 26.Qa4 Kh8+-) 26.Bc4 Re6 27.ef4 (worse 27.Be6 Qe6 28.Qa5 Rd7 29.Nf4 Nf4 30.ef4 gf4+-) 27...gf4 (27...Kh8 28.Qb3 Rde8 29.fg5 Bd4 30.Be6 Qe6 31.Qe6 Re6 32.d7+-) 28.Qc5 Qg6 (28...Rf8 29.Be6 Qe6 30.Qh5 fg3 31.hg3 Bd4 32.Nf4+-) 29.Be6 Qe6 30.Qh5 e3 (30...fg3 31.hg3 Bd4 32.Ng5+-) 31.fe3 (31.Nf4!? ef2 32.Nf2 Qf7+-) 31...fe3 32.Re1 (32.Nf4 Qe4+-) 32...e2 (32...Bd4 33.Nf4 Qf7 34.Qh6 e2 35.Nf2+-) 33.Re2 (33.Re2 Bd4 34.Ndf2+-) 1-0. ClayPigeons (2080) - andisceppard (2100), Rated Bullet game, lichess.org, 2020.

5.e3 Nd7 6.d4 Be7 7.de5 (7.Nf3 Bf6=) 7...Ne5 (7...de5 8.Nf3=) 8.Nf3 (8.f4 Ng4 9.Bg7 Bf6 (worse 9...Ne3 10.Qc1 Bh4 11.g3+-) 10.Bf6 Qf6=) 8...Bf6 9.Ne5 Be5 10.Be5 de5 11.Qd8 Rd8 12.Be2 Nf6 13.0-0 (13.Nd2 h6=) 13...0-0 (13...h6 14.Nc3=+) 14.Nc3 e4 (14...h6 15.Rfd1=) 15.Rfd1= Rd7 16.Rd7 Nd7 17.Rd1 Nc5 18.Nd5 Bd5 (18...Rf7 19.Nf4=) 19.Rd5 b6 20.f3 ef3 (20...a6 21.g3=) 21.Bf3+= g6 22.Re5 Kf7 23.Bd5?? (better 23.g4=) 23...Kf6-+ 24.Rf5 Kf5 25.Kf2 (25.a3 Ne4-+) 25...Rd8 (25...Ke5 26.Ke2-+) 26.Kf3 Rd5! 27.cd5 Ke5 28.d6 (28.Kg4 Kd5 29.Kg5 Kc4-+) 28...cd6 29.Kg4 (29.Ke2 Kd5-+) 29...Kf6 (29...Ke4 30.a4 h6 31.Kg3 Ke3 32.h4-+) 30.Kf4 Ne6 (30...Na4 31.Ke4 Nc3 32.Kd4 Nb5 33.Kc4-+) 31.Kg4 (31.Ke4-+) 31...Ke5 32.Kf3 Ng5 (32...Nc7 33.a4-+) 33.Kf2 (33.Ke2 Ke4-+) 33...Ne4 34.Kf3 (34.Ke1 Nc3-+) 34...Nc3 35.a3 Nb5 36.g4 (36.a4 Nc3-+) 36...Na3 37.h4 Nc4 38.e4 (38.Ke2 Ne3! 39.Kd3 Kf4-+) 38...a5 39.h5 g5 (better 39...gh5 40.g5-+) 40.h6 a4 41.Ke2 Plans a3 41...b5 42.Kd1 (42.Kf2 a3 43.Kg2 a2 44.Kg3 a1Q 45.Kf2 Qc1 46.Kg2 Qf4 47.Kg1 Ne3 48.Kh1 Qe4 49.Kg1 Qg2) 42...Ke4 (42...a3 43.Kc1 a2 44.Kc2 a1Q 45.Kd3 Qd1 46.Kc3 Qd2 47.Kb3 Qb2) 43.Kc2 b4 44.Kb1 (44.Kd1 b3 45.Ke2 b2 46.Kf2 b1Q 47.Ke2 Qc2 48.Ke1 Ke3 49.Kf1 Qf2) 44...d5 (44...b3 45.Kc1 a3 46.Kb1 Nd2 47.Kc1 Ke3 48.Kd1 a2 49.Kc1 a1Q) 45.Ka2 (45.Kc2 b3 46.Kd1 b2 47.Ke2 b1Q 48.Kf2 Qa2 49.Kg1 Ne3 50.Kh1 Qg2) 45...Na5 (45...b3 46.Ka1 a3 47.Kb1 d4 48.Ka1 d3 49.Kb1 d2 50.Ka1 d1Q) 46.Kb1 (46.Kb2 a3 47.Kb1 b3 48.Ka1 d4 49.Kb1 d3 50.Kc1 Nc4 51.Kd1 a2 52.Ke1 Kf3 53.Kd1 a1Q) 46...Kd3 (46...b3 47.Kb2 Nc4 48.Kc1 a3 49.Kb1 d4 50.Ka1 d3 51.Kb1 d2 52.Ka1 d1Q) 47.Ka1 (47.Ka2 Kc2 48.Ka1 d4 49.Ka2 d3 50.Ka1 Kb3 51.Kb1 d2 52.Ka1 d1Q) 47...Kc3 (47...Kc2 48.Ka2 Nc4 49.Ka1 a3 50.Ka2 b3 51.Ka1 b2 52.Ka2 b1Q) 48.Ka2 (48.Kb1 b3 49.Ka1 b2 50.Ka2 Kc2 51.Ka3 b1Q 52.Ka4 Nc6 53.Ka3 Qb3) 48...d4 49.Kb1 d3 (49...Nb3 50.Ka2 d3 51.Kb1 d2 52.Ka2 a3 53.Kb1 d1Q 54.Ka2 Qc2) 50.Kc1 a3 (50...b3 51.Kd1 b2 52.Ke1 b1Q 53.Kf2 d2 54.Kf3 d1Q 55.Kf2 Qbc2 56.Ke3 Nc4) 51.Kb1 (51.Kd1 a2 52.Ke1 a1Q 53.Kf2 Qa2 54.Kf3 d2 55.Ke4 d1Q 56.Ke5 Qd4 57.Kf5 Qad5) 51...d2 (51...b3 52.Kc1 a2 53.Kd1 a1Q) 52.Ka2 d1Q (52...Nc4 53.Kb1 d1Q 54.Ka2 b3) ½-½. eem63 (1610) - viktorvalentinovi4, <1700 Blitz Arena, lichess.org, 2019.

6.ba6 Na6 7.d4 ed4 8.Bd4 Nf6 9.Nh3 =.

6.Qb3 Nd7 7.d4 ab5 8.Qb5 c6 9.Qb3 =+.

6.Nc3 ab5 7.cb5 d5 8.Nf3 Bd6 9.Be2 =.

6.d4 ab5 7.d5 Bf7 8.cb5 Nf6 9.Nc3 =+.

6.d4 ed4 7.Bd4 d5 8.cd5 Bb4 (8...Bd5 9.Nc3=) 9.Nd2 =.

6.d4 Nbd7 7.Nd2 Be7 (7...ed4 8.Bd4 a6 9.ba6=) 8.Ngf3 e4 (8...Ne4 9.de5= (9.Ne4 fe4 10.Nd2=)) 9.Ng5 (9.d5 Bf7 10.Nd4 g6+=) 9...Bg8= 10.d5 Ne5 11.Qc2 (11.f4 ef3 12.Ngf3 Nfg4=) 11...Nfd7 12.Nge4 (12.Nh3!?=) 12...fe4–/+ 13.Ne4 Bf6 14.Nf6 Nf6 (worse 14...Qf6 15.f4+–) 15.Be2 Bf7 16.f4 Ned7 17.g4 0-0 (better 17...Qe7 18.g5 Nh5–/+) 18.0-0-0? (better 18.g5 Nh5 19.Bd3=) 18...Nc5 (18...Qe7 19.Bd4–+) 19.h4 (19.Bd4 Qe7–+) 19...Qe7 20.Rh3 (20.h5 Qe3 21.Qd2 Qe7–+) 20...a6 (20...Nfe4 21.Bf3–+) 21.h5 (21.Bf6 Qf6 22.g5 Qe7–+) 21...ab5 22.g5 Nh5?? (better 22...Nfe4 23.g6 hg6–+) 23.Bh5=+ Bh5 (23...Ra2?? 24.Qh7 Kh7 25.Bf7) 24.Rh5 Qe3 25.Kb1 g6?? (25...Ne4 26.cb5 A) 26...Qf4 27.Rdh1 Rae8 28.Rh7 Qf1 29.Bc1+– (29.Rf1?! Rf1 30.Bc1 Kh7=); B) 26...Rf4–/+) 26.Rh7!!+– Qe4 (26...Kh7 27.Rh1) 27.Rg7 Kh8 28.Qe4 Ne4 (28...Rf6 29.Bf6 Ne4 30.Rh1) 1–0. Falco,Peter – Fussnecker,Manfred, Bad Homburg GER Open, 2006.

6.d4 Nbd7 7.Nf3 Qe7 8.de5 de5 9.Be5 =.

6.d4 e4 7.d5 Bc8 8.Be2 Be7 9.Nh3 +=.

6.Nf3 a6 7.d4 e4 8.Ng5 Bg8 9.ba6 =.

6.Nf3 h6 7.Nc3 Be7 8.Be2 Nbd7 9.d4 e4 10.Nd2 Nf8 11.d5 Bf7 12.f3 ef3 13.Nf3 Qd7 14.a4 g5 15.a5 g4 16.Nd4 Nh5 17.a6 b6 18.g3 Bf6 19.Nc6 Ng7 20.Bd3 h5 21.Qc2 Ng6 22.Rf1 Ne7 23.0-0-0 Nc6 24.bc6 Qe7 25.e4 fe4 26.Be4 0-0-0 27.Rde1 Be5 28.Nb5 Kb8 29.Kb1 Rhf8 30.Be5 de5 31.Rf2?? Qb4–+ (31...Qb4 32.Ka2 Qe1–+) 0–1. Mueller,E – Bannwart,R, Zuerich, 1999.

5.a4 Be7 6.e3 0-0 7.Nc3 c6 8.Nf3 Be6 9.Be2 Kh8 10.d4 e4 11.Nd2 c5 12.d5+= Bg8 13.Qc2 Nbd7 14.h3 Ne5 15.0-0-0 (15.g4!?+/-) 15...a6= 16.g4 ab5 17.ab5 g6 (17...fg4 18.Nce4 g3 19.Ng3+=) 18.f4 ef3 19.Nf3 Nfd7 20.Rdf1 Bf6 (20...Nf3!? 21.Rf3 Ne5+=) 21.gf5+/- Nf3 22.Rf3 Ne5 23.Ne4 (23.Rf2+/-) 23...g5? (better 23...Nf3 24.Nf6 Ne5+/-) 24.Nf6+- Qf6 25.Kb1 (25.Kd1 Ra5+-) 25...Kg7 (25...Bf7!?+/-) 26.Rg1+- Kf7 27.Rfg3 h6 28.h4! gh4? (28...Bh7 29.e4 Rg8 30.hg5 Rg5 31.Rg5 hg5+-) 29.Bh5 Ke7 30.Rg7 Kd8 (30...Bf7 31.R1g6! Ng6 32.Bf6 Kf6 33.fg6 Bd5+-) 31.R1g6! Qf5 (31...Ng6 32.Bf6 Double attack (32.Bf6 Pinning; 32.Bf6 Deflection; 32.Bf6 Decoy)) 32.Rd6 (32.Rg8 Qf1 33.Qd1 Qf5 34.Kc1 Ng6 35.Rg6 Qe4 36.Bf6 Kc7 37.b6 Kb8= (37...Kb6 38.Qb3 Ka6 39.Rg7 Qc4 40.Qc4 b5 41.Qb3 h3 42.Be2 c4 43.Qa2 Kb6 44.Bd4)) 32...Kc8 33.Qf5 Rf5 34.Be5 Re5 35.b6 (35.b6 Re8 36.Rc7 Kb8 37.Be8 Bh7 38.Rh7 Ra1 39.Ka1 Kc8 40.Rc7 Kb8 41.Rd8) 1-0. BeepBeepImAJeep (2815) - Nermid (2390), lichess.org, 2016.

5.Nc3 Be6 6.e3 Be7 7.Qc2 (7.Nf3 a6=) 7...c6 (7...Qd7 8.Nf3=) 8.a4 (8.Nf3 0-0=) 8...0-0 9.Be2 Nbd7 10.Nf3 h6 11.0-0 Rc8 12.Nh4 Ne8 (12...d5 13.Nf5 dc4 14.f4 ef4 15.bc6 Rc6 16.Nd4+/-) 13.Ng6+= Rf7 14.Ne7 Re7 15.d3 Nef6 16.a5 d5 17.cd5 cd5 18.Ba3 (18.d4!?+=) 18...Rf7 19.d4 Ne4 (19...ed4!? 20.ed4 Qa5=+) 20.Bb4= ed4 21.ed4 Ndf6 22.f3 Nc3 23.Bc3 Rfc7 24.Ra3 Qe7 25.Qb2 White plans b6 25...Bf7 (25...Bd7 26.Rc1=) 26.Bb4+= Qe8 (26...Qe6 27.Bd3+=) 27.Bd3 f4 (27...Qe6!?+=) 28.Re1+/- Qd8 29.b6 (29.Qd2 Nh5+-) 29...ab6+/- 30.ab6 Rc6 31.Bc5 Nd7 32.Ra7 (32.Bf5 Rb8 33.Bd7 Qd7+/-) 32...Nb6 33.Rb7 Na4 34.Qb4 Nc5 35.dc5 Rc5 (35...R8c7 36.Rb8 Rc8 37.Rc8 Qc8 38.Rc1=) 36.Bf5+/- Rc4 37.Qb1 Ra8? (37...Qf6 38.Bc8 Rc8 39.Qd1+/-) 38.Ree7 (better 38.Bh7 Kh8 39.Rf7+-) 38...Qd6 (38...Qa5 39.Kh1 (39.Rf7 Qc5 40.Kf1 Rc1 41.Qc1 Qc1 42.Ke2 Ra2 43.Rb2 Qb2 44.Bc2 Qc2 45.Ke1 Qe2) 39...Qa3 40.Rb8 Rc8 41.Reb7 Rab8 42.Rb8-/+) 39.Rf7 0-1. AsceticKingK9 (2145) - paoloone (1980), ChessWorld.net, 2019.

5.Nc3 Be7 6.a4 0-0 7.e3 Qe8 8.Nf3 h6 9.d4 e4 10.Nd2 Qg6 11.g3 (11.Ne2 Nh5=) 11...Nbd7 12.Bg2 b6 (12...c5 13.Qe2=) 13.0-0+= Bb7 14.d5 (14.f3 a6+=) 14...Ne5= 15.Qe2 Nd3 16.Ba3 Bc8 17.Nb3 (17.f3!?+=) 17...Ng4=+ 18.Nd4 Bf6 19.h3 (19.Rad1!?=+) 19...Nge5-/+ 20.Ne6 (20.g4 Kh7 21.Kh1+/-) 20...Be6-+ 21.de6 Rae8 22.Nd5 Re6?? (22...Nc4 23.Ra2-+) 23.Nf6?? (better 23.Nc7 Qf7 24.Ne6 Qe6 25.Rad1=) 23...Ref6 (worse 23...gf6 24.Qa2-/+) 24.Qa2 Kh7 25.c5 (25.Rad1 Qh5-+) 25...dc5 26.Qd5 (26.Bb2 Rd6-+) 26...Rd6 (26...c6 27.Qa2-+) 27.Qb7 Nf3! 28.Kh1? (28.Bf3 ef3 Combination) 28...Qh5 (28...Nd2 29.Qa7 Nf1 30.Rf1-+) 29.Qc7 (29.Bc1 Nfe1 (29...Nc1?! 30.Rac1 Rfd8 31.Qa7-+) 30.Bd2 Ng2 31.Kg2 Qf3 32.Kg1 Rg6-+) 29...Rg6 (29...Rfd8 30.Qa7 Nd2 31.Kg1-+) 30.Rad1 (better 30.Qe7 Rgf6 31.Ra2-+) 30...Ng5 31.Kh2 (31.Rd3 ed3 32.Kg1 Nh3 33.Bh3 Qh3-+) 31…Ne6 (31...Ne6 32.Qd7 Nf2 33.Rf2 Rd8 34.Qe6 A) 34...Rd1?! 35.Qf5 (worse 35.Rf5 Re6 36.Rh5 Re1-/+) 35...Qf5 36.Rf5=; B) 34...Re6 35.Rd8 Qg5-+) 0-1. dannysmet (1810) - noorkadil (1910), Rated Bullet game, lichess.org, 2021.

5.d4 A) 5...e4 6.e3 (6.Nc3 a6 7.d5 Be7 8.Nh3 e3 9.f3=; 6.Nh3 e3 7.fe3 d5 8.c5 b6 9.cb6=+) 6...Be7 7.Nh3 a6 8.d5 Bd7 9.Be2=; B) 5...Nbd7 6.Nh3 (6.Nf3 e4 7.Ng5 Nb6 8.e3 Ng4 9.Nh3=; 6.e3 a6 7.Nh3 c5 8.Be2 ab5 9.cb5=; 6.Nd2 a6 7.ba6 Ra6 8.e3 Be7 9.Ngf3=) 6...a6 7.e3 ab5 8.cb5 c5 9.de5=.

5.e3 A) 5...Nbd7 6.Nc3 (6.d4 Be7 7.Nd2 0-0 8.Qc2 Ng4 9.Be2=; 6.Be2 e4 7.Nh3 Ne5 8.0-0 Be6 9.Qc2=; 6.Nf3 e4 7.Nd4 Nc5 8.Nc3 a6 9.ba6=) 6...a6 7.ba6 Ra6 8.d4 e4 9.Nh3=; B) 5...Be7 6.d4 e4 7.Nh3 0-0 8.Nf4 a6 9.d5=.

5.b5 Nbd7 6.Qf5 Nc5 7.Qc2 Be7 8.Nf3 0-0.

5.b5 e4 6.Nc3 (6.f3 Nbd7 7.fe4 fe4 8.Nc3 Nc5; 6.Nh3 Nbd7 7.Nc3 Be7 8.Nf4 Ne5) 6...Nbd7 7.f3 Ne5 8.e3 Be7.

5.b5 Be7 6.Nc3 (6.Nf3 0-0 7.Nc3 Nbd7 8.e3 Nc5) 6...0-0 7.Nf3 Nbd7 8.e3 Nc5.

5.Nc3 Be7 6.a3 0-0 7.e3 a6 (7...c5 8.Be2=+) 8.h4 (8.d4 e4=) 8...Nbd7 (8...Nc6 9.Nf3=+) 9.Nf3 (9.Qf5 a5=) 9...Ng4 10.Be2 e4 11.Ng5 h6?? (better 11...Bg5 12.hg5 Nge5=) 12.Ne6+- Qe8 13.Nd5 (better 13.Nc7 Qd8 14.Na8 Nde5+-) 13...Rf6 (13...Qf7 14.Nf8 Bf8 15.Nc7+-) 14.Bf6 (14.Nec7 Qd8 15.Bg4 fg4 16.Qe4 Rf7 17.Ne7 Re7 18.Qd5 Rf7 19.Na8 b5 20.Qd6 Bb7+-) 14...Ndf6 (14...Bf6 15.Nec7 Qe5+-) 15.Nec7 Qd7 (15...Qd8 16.Na8 Nd5 17.cd5+-) 16.Na8 Nd5 (16...Qd8 17.Nac7+-) 17.cd5 Qd8 18.Nc7 (18.Nb6! Bf6 19.Rc1 Bd7+-) 18...Bd7 (18...Bh4 19.Bg4 fg4 20.Rc1+-) 19.Ne6 Be6 20.de6 Ne5 21.f3 (21.Rc1!? Nc6+-) 21...Bh4 22.Kd1 Bf2 (22...d5 23.Rc1 b5 24.Qc7 Qc7 25.Rc7+- (25.Rh4 Qe7 26.Rh5 Qe6-/+)) 23.fe4 Qe7 (23...f4 24.ef4 Nc6 25.Rc1+-) 24.ef5 b5 (24...d5 25.Qc8 Kh7 26.Rc1 Be3 27.Qc2+-) 25.Qc8 Kh7 26.d4 Nc4 27.Bd3 (better 27.Bh5 Ne3 28.Ke2 Nf5+-) 27...Ne3 (27...Nb2 28.Kc2 Nd3+-) 28.Ke2 Qf6 29.Kf2 (29.e7 Qd4 30.f6 Qd3 31.Kd3 Kg6 32.e8Q Kg5 33.Rh5 Kf4 34.Qe4 Kg3 35.Qf3) 29...Nd5 30.g4 (better 30.Rh6! gh6 31.Qb7 Kh8 32.Qd5 Qh4 33.Kg1+-) 30…Nf4 (30...Nf4 31.Bb1 Qd4 32.Kf3 Nd3+-). ODIN_ENKI1 (1735) - jiacomo (1855), lichess.org, 2018.

5.e3 Be7 6.d4 Nbd7 (6...ed4 7.ed4 0-0 8.Nf3=+) 7.de5 (7.Qf5 ed4 8.ed4 d5=) 7...Ne5 8.Ne2 (8.Be2 a5 9.b5 0-0=) 8...0-0 9.Nf4 c6 (9...a5 10.a3=) 10.Be2= Nfg4 (10...a5 11.b5=) 11.Bg4 (11.0-0 Re8+=) 11...Ng4 (11...fg4 12.0-0=) 12.0-0 Bf6 13.h3 Bb2 14.Qb2 Ne5 15.Nd2 Qg5 16.c5 (16.Rfd1 Qf6 17.Qd4 Rd8=) 16...Qf6 17.Qb3 d5 18.e4?? (18.Rfd1 Re8=) 18...Qg5?? (better 18...fe4 19.Nd5 cd5 20.Qd5 Be6 21.Qb7 Qg6-+) 19.Nd5+/- Qd2 (19...cd5!? 20.f4 Qh4 21.fe5 Be6 22.ed5 Qd4 23.Kh1 Bd5+/-) 20.Nc7+- Kh8 21.Na8 fe4 22.Nc7?? (22.Rad1 Qg5 23.Qg3 Qe7+=) 22...Qg5 (22...Nf3 23.Kh1 Qh6-+) 23.Qg3+- Qe7 24.f4 (24.Rae1 Bf5 25.f3+-) 24...Nd3= 25.f5 Qf6 (better 25...Nb4!? 26.Qd6 Qd6 27.cd6 Nd3+= (27...Bf5?? 28.d7 h6 29.Rf5+-)) 26.Ne6!+/- Be6 (better 26...Re8!? 27.Qg4 Be6 28.Qe4 Nc5 29.bc5 Bf7+-) 27.fe6+- Qd4 (27...Nf4 28.e7! Ne2 29.Kh2 Qe7 30.Rf8 Qf8 31.Rf1+-) 28.Kh1 (28.Kh1 Re8 29.Qd6 Nf2 30.Kg1+-) 1-0. amnezia (1835) - karpov19 (1895), Rated Blitz game, lichess.org, 2014.

5.a3 g6 6.d4 Bg7 (6...ed4!? 7.Qd4 Bg7=) 7.de5+= de5 8.Qd8 Kd8 9.0-0-0 (9.Nf3 Re8+=) 9...Ke7 10.g3 c6 11.Bg2 Be6 12.c5 Bb3 13.Rd6 Ne8 14.Rd2 Na6 15.e3 Nac7 16.Nge2 Nf6 17.h3 Rhd8 18.Rd8 Rd8 19.Re1 Ncd5 (19...Ne6 20.Ng1+=) 20.Nd5 Nd5 21.Bd5 cd5 22.h4 (22.f4 Bc4+=) 22...Ke6 (22...b6 23.Kd2+=) 23.Nc3 (23.f4 Bc4=) 23...Bh6 (23...Bc4 24.f4–/+) 24.f4 Bg7 (24...Bc4 25.Ne2 Bg7 26.Ng1=) 25.Ne2 a5 26.fe5 Be5 27.Nd4 Bd4 28.Bd4 ab4 29.ab4 Ra8 30.Kb2 Bc4 31.Ra1 Ra1 32.Ka1 h6 33.Kb2 g5 34.hg5 hg5 35.Kc3 g4 36.Kb2 Bd3 37.Ka3 Bb5 38.Bc3 Kd7 39.Be5 Ke6 40.Bf4 Kd7 41.Kb3 Ke6 42.Kc3 Bc4 43.Kd4 Bb5 44.Bg5 Bc4 45.Bf4 Bb5 46.Bg5 Bc4 ½–½. tyop (1765) – jalapachess (1635), internet, 2013.

5.a4 Be6 6.e3 Nbd7 7.h3 b6 8.Nf3 g6 9.Be2 Bg7 10.Ng5 Bg8 11.Nf3 Be6 12.0-0 0-0 13.Ng5 Re8 14.Ne6 Re6 15.Qc2 Kh8 16.d4 ed4 17.ed4 Ne4 18.d5 Nc3 19.de6 Ne2 20.Qe2 Ne5 21.f4 Nc6 22.Bg7 Kg7 23.b5 Ne7 24.Qb2 Kh6 25.Qf2 Qg8 26.Rfe1 Re8 27.Ra2 d5 28.c5 bc5 29.Qc5 Qg7 30.Qc7 Qd4 31.Kh1 Qc4 32.Qd7 Qc8 33.Qa7 Qc3 34.Qd7 Qe1 35.Kh2 Rc8 36.Qe7 Rc1 37.Qg5 Kg7 38.Qe7 Kh6 39.Qg5 Kg7 40.Qe7 Kh6 ½–½. elev – cretuj, internet, 2014.

5.b5 Be7 6.a4 0-0 7.a5 Kh8 8.e3 Be6 9.Nf3 Rg8?? (9...a6!?=) 10.d4 (10.Ng5 Qd7 11.Qf3 Ne4 12.Ne6 Qe6 13.Ne4 fe4 14.Qe4 Nd7 15.Qb7 Nc5+-) 10...e4? (10...Nfd7 11.Qc2+=) 11.Nd2?? (better 11.Ng5 Qd7 12.d5 (12.Ne6?! Qe6 13.d5 Qf7+/-) 12...Nd5 13.cd5 Bg5 14.de6 Qe6 15.Qd4+-) 11...Nbd7 12.d5 Bf7 13.Nb3 Ne5 14.Be2 Nfd7 (14...Bh5! 15.f3 ef3 16.gf3 Nfd7=) 15.0-0+/- Bf6 16.Kh1 g5 (16...a6 17.Kg1+=) 17.f3 (17.a6!? ba6 18.Ra6+/-) 17...ef3+= 18.gf3 (worse 18.Bf3 Nc4 19.Qe2 Nde5-/+) 18...Qe7 19.e4 f4 20.Rg1 Rg6 21.Qd2 Rag8 22.b6 (22.a6 ba6 23.Ra6+=) 22...h5?? (22...ab6 23.Qd1 g4 24.fg4 ba5 25.Na5 Nc5-/+) 23.ba7+/- g4 24.fg4 hg4 25.a6 ba6? (better 25...b5!? 26.cb5 f3+-) 26.Ra6+- Nb6 27.c5 dc5 28.Na5 (better 28.Qf4 Ra8 29.Bg4+-) 28...f3+/- 29.Nc6?? (better 29.Bb5 Ra8 30.Nc6 Nc6 31.Bc6+/- (31.dc6?! Be6=)) 29...Nc6-+ 30.dc6 fe2 31.Nd5 (31.Raa1 Bc4 32.Rg4 Rg4 33.Qh6 Qh7 34.Qf6 R4g7 35.Rg1-+) 31...Qe4 32.Rg2 Bd5 (32...e1Q 33.Qe1 Qe1 34.Rg1 Bd5) 33.Bf6 (33.Qh6 Rh6 34.Bf6 Rf6 35.a8Q e1Q) 33...Rf6 34.a8Q (34.Qh6 Rh6 35.a8Q e1Q) 34...Na8 (34...Qg2) 35.Qe2 (35.Qh6 Rh6 36.Ra8 e1Q) 35...Qe2 36.Ra2 (36.Ra8 Qg2) 36…Rf1 0-1. persianempire (1975) - littlepawn77 (2035), Rated Bullet game, lichess.org, 2013.

5.b5 g6 6.a4 Bg7=+ 7.e3 0-0 8.Nf3 h6 9.Be2= Be6 10.Qb3 Nbd7 11.0-0 g5 12.d4 e4 13.Nd2+= Kh8 14.Nd5 Nd5 15.cd5 Bg8 16.a5 Nf6 17.Ba3 Bd5=+ 18.Bc4 Bc4 19.Nc4 b6 20.ab6 ab6=+ 21.Qb2 Qd7–/+ 22.Rfb1 f4 23.Rd1 f3–+ 24.gf3 ef3 25.Ne5?? de5 26.de5 Qh3 27.Bf8 0–1. c – B_Alterman (2435), ICC, 2003.

5.d3 g6 6.g3 Bg7 7.Bg2 0-0 8.Qb3 Kh8 9.Nh3 h6 10.0-0 c6 11.e4 (11.b5 a6=) 11...Be6 (11...fe4 12.de4 Be6–/+) 12.Kh1? (better is 12.f4!?=) 12...fe4–/+ 13.de4 b5! 14.Rfd1 (14.cb5 Bb3 Pinning (14...Bb3 Deflection)) 14...Bc4 (better is 14...Qd7!? 15.Ng1 Ng4–+ (15...bc4?! 16.Qc2–/+)) 15.Qc2–/+ Qe7 16.a4 Qe6 17.f4 (17.Qd2 Ne8+=) 17...Ne8 18.Qd2 ba4 19.Na4 a6 (better is 19...Na6!?–/+) 20.fe5= Bb3?? (20...de5!? 21.Nc5 Qf7=) 21.Nf4 (better is 21.ed6 Bd1 22.Qh6 Kg8 23.Bg7 Rf1 24.Bf1 Qe4 25.Kg1 Ng7 26.Rd1+–) 21...Rf4+= 22.gf4 (22.Qf4 Bd1 23.Rd1 Qb3=) 22...Bd1 23.Rd1 de5 24.Qd8 Bf6? (24...Kh7 25.fe5 Qb3+–) 25.Be5+– Be5 26.fe5 Qe5 27.Qd4?? (better is 27.Nb6 Ra7 28.Nc4+–) 27...Qd4+= 28.Rd4 a5 29.Nb6 Ra6+= 30.ba5 Ra5 31.Bf1 Ra1 32.Kg2 Rb1 33.Rd8 Rb6 34.Re8 Kg7 35.e5 Na6 36.Bc4 h5 37.Rg8 Kh7 38.Re8 Nc5 39.e6 0–1. Huelle,Gunter (1785) – Randt,Karl Heinz (2000), Leipzig VfB op, 2009.

5.d4 ed4 6.Qd4 Nc6 7.Qe3 Qe7 8.Qe7 Be7 9.a3 a5 10.b5 Nd4 11.0-0-0 (11.Rd1 Nc2 12.Kd2=) 11...c5 (11...Nb3 12.Kb1+=) 12.Nd5 (better is 12.e3!? Ne6 13.Nd5+/–) 12...Nd5= 13.cd5 Nb3 (better is 13...Nb5!? 14.Bg7 Rg8+=) 14.Kc2+/– a4 15.e3 (15.Bg7!? Rg8 16.Bc3+/–) 15...0-0+= 16.Nf3 f4 17.e4 Bf6 18.Bf6 Rf6 19.Bc4 Na5 20.Ba2 Bg4 21.h4 Bf3 22.gf3 Re8 23.h5 Rh6 24.Rdg1 (better is 24.Rh4!?=) 24...Re5–/+ 25.Kd3 (25.Rh4!? Rhh5 26.Rf4–/+) 25...Reh5–+ 26.Rh5 Rh5 27.e5? (better is 27.Rc1–+) 27...Re5 28.Rg4 g5 29.Bb1 (29.Rg1 h5–+) 29...h5 30.Rg2 Kg7 (30...Rd5 31.Kc3–+) 31.Kc3 Kh6 (better is 31...Rd5!? 32.Bc2–+) 32.Be4 b6 33.Rg1 Nb3 34.Rh1 Nd4 35.Kd3 Nb5 36.Kc4 Na3 37.Kc3 b5 38.Ra1 b4 39.Kd3 g4 40.fg4 hg4 41.Rh1 Kg5 42.Rh7 c4 43.Kd4 c3 44.Rg7 Kf6 45.Rg6 Ke7 46.Rg7 Kf8 47.Rg4 Re4! 48.Ke4 c2 49.Rg1 b3 50.Kd3 b2 51.Kc3 b1Q 52.Rb1 cb1Q 53.Kd4 Qb3 54.Ke4–+ Qc4 55.Kf5 Kf7 56.f3 Qd5 57.Kf4 Qe5 58.Kg4 Nc2 59.f4 Qe4 60.Kg5 a3 61.f5 a2 62.f6 Qe5 63.Kh6 Qf6 64.Kh5 Qf5 65.Kh6 Qh3 66.Kg5 a1Q 67.Kf4 Qd4 68.Kg5 Qe5 0–1. dtpwaldi (1690) – doronlimor (1705), internet, 2013.

5.d4 e4 6.d5 g6 7.e3 Bg7 8.Qc2 0-0 9.Nge2 a5 10.b5 Nbd7 11.a4 Nc5 12.Nf4 g5 13.Nh3 h6 14.Be2 b6 15.0-0-0 Bd7 16.Kb1 Qe7 17.Ka2 Rae8 18.Ka3 Kh8 19.Na2 Ng4 20.Bg7 Qg7 21.Qc3 f4 22.Qg7 Kg7 23.ef4 gf4 24.Rhe1 (better is 24.Nc3!?–/+) 24...f3 25.gf3 ef3 26.Bf1 Nh2 27.Ng1 Nf1 (27...Re1 28.Re1 Rf4 29.Bh3 Bh3 30.Nh3 Rc4 31.Re3–+) 28.Rf1? (28.Re8 Re8 29.Rf1 Bg4–+) 28...Re2! 29.Rde1 (29.Ne2 fe2 Double attack (29...fe2 Passed pawn)) 29...Re1 30.Re1 Bg4 31.Re3 Rf4 32.Rc3 h5 33.Nc1 h4 34.Nd3 Nd3 35.Rd3 h3 36.Nh3 Bh3 37.Kb3 (37.Re3 Kf6 38.Kb3 Bf1–+) 37...Bf5 (better is 37...Bf1 38.Rc3–+) 38.Re3 Kf7 39.Kc3 Bg4 40.Re1 Rf5 41.Rg1 Bh5 42.Kd3 (42.Rh1 Re5–+) 42...Re5 43.Rh1 Bg6 44.Kc3 Re2 45.Rh2 Rc2 46.Kb3 Bd3 47.Ka3 (47.Rh4 Rf2 48.Kc3 Bc2–+) 47...Rc4 (47...Bc4 48.Rh7 Kf6 49.Rf7 Ke5 50.Re7 Kd4 51.Re4 Kc5 52.Rc4 Rc4 53.Kb3 Rb4 54.Kc3 Ra4 55.Kd3 Rb4 56.Ke3 Rb3 57.Ke4 a4 58.Kf5 a3 59.Kg4 a2 60.Kf5 a1Q 61.Kg5 Qg7 62.Kf5 Rb4 63.Ke6 c6 64.dc6 Rf4 65.c7 Rf6) 48.Rh3 (48.Kb3 Rb4 49.Kc3 Be4–+) 48...Be4 49.Rh4 Bd5 50.Rh7 Kg6 51.Re7 Rc2 52.Rd7 Ra2# 0–1. tyop (1730) – dragage (1915), internet, 2013.

5.Nd5 Nd5 6.cd5 Be7 7.h3 0-0 8.e3 Nd7 9.a4 (9.d4 Nb6 10.Qb3 e4=+) 9...Nf6 (9...a5 10.ba5 Bf6 11.d4=+) 10.Qb3 Qe8 (10...f4 11.Nf3=+) 11.Ne2 Qh5 (11...Qf7 12.Nc3=+) 12.Nc3 (12.Be5 de5 13.d6 Qf7 14.Qf7 Rf7 15.de7 Re7=) 12...Ne4 13.Be2 Qh4 Black prepares the advance f4 (better 13...Qg6 14.g3 Qf7=+) 14.0-0?? (14.g3 Qg5=) 14...Ng5?? (better 14...Nd2 15.Qa3 f4 16.ef4 Nf1 17.Rf1 Qf4-+) 15.Qc4 (15.Nb5 f4 16.ef4 ef4=+ (worse 16...Qf4 17.Nc7 Rb8 18.d4+/-)) 15...f4 (better 15...Nf3 16.gf3 Qh3-+) 16.Nd1? (better 16.Rfc1!?=) 16...Bh3! 17.f3?? (17.gh3 Nh3 Double attack) 17...Bg2!-+ 18.Kg2 (18.Kg2 Qg3 Mate attack) 18...Qh3 (18...Qg3 19.Kh1 Rf6 20.Qf4 Rh6 21.Qh4 Rh4) 19.Kf2 (19.Kg1 Qg3 20.Kh1 Rf6 21.Qf4 Rh6 22.Qh4 Rh4) 19…Qg3 0-1. dannysmet (1805) - Yucel1963 (1860), Rated Bullet game, lichess.org, 2021.

5.Nd5 Nbd7 6.d3 c6 7.Nc3 d5–/+ 8.Qb3 d4 9.Nd1 c5 10.e3–/+ b6 11.b5 Bb7 12.f3 Bd6 13.e4 fe4 14.fe4 0-0 15.Nf3 Qe7 16.Nf2 h6 17.Be2 Rf7 18.Bc1 Nf8 19.a4 Ne6 20.a5 Raf8 21.Bd2 Nh5 22.a6 Bc8 23.0-0-0 Nhf4–/+ 24.Bf1 Bd7 25.Re1 Bc7 26.h3 Bb8 27.Ng4 Nd8 28.Ngh2 Bc7 29.Qd1 Nde6 30.g3 Ng6 31.h4 Bb5 32.cb5+= c4 33.Kb2?? c3–+ 34.Bc3 dc3 35.Kc3 Bd6 36.Kb2 Bb4 37.Nd2? Qc5 38.Qc2 Qd4 39.Ka2 Rc7 40.Qd1? Rfc8 41.Nc4 Be1 42.Qe1 Rf8 43.Ng4 Qc5 44.h5 Ne7 45.Qb1 Nd4 46.Na3? Nc8 47.Rh2 Nd6 48.Rb2 Rf3 49.Qd1 Qc1 50.Be2 Qd1 51.Bd1 Rd3 52.Ba4 Rg3 53.Ne5 Ne4 54.Nb1 Nc3 55.Nc3 Rcc3 56.Bd1 Ra3 57.Kb1 Rg5 58.Nc4 Rd3 59.Ba4 Rc5 60.Rb4 Nf3 61.Nb2 Rd4 62.Bb3 Kf8 63.Nc4 Rdc4! (63...Rdc4 64.Bc4 Nd2 65.Kc2 Nc4–+) 0–1. Althoff,Guntram (2140) – Eibelshaeuser,Stefan, Hessen–ch VM, 2004.

5.Nf3 Nc6 6.b5 Na5 7.e3 Nc4?? (better is 7...a6=) 8.Bc4+– e4 9.Nd4 c5? (9...d5 10.Be2+–) 10.Nde2 (10.bc6 bc6 11.Nc6 Qb6+–) 10...g6? (10...d5 11.Bb3+–) 11.Ne4! Bg7?? (11...fe4 12.Ng3 Combination; 11...Ne4 12.Bh8 Pinning (12.Bh8 Deflection; 12.Bh8 Clearance)) 12.Nf6+– Bf6 13.Bf6 Qf6 14.0-0 b6 (14...Be6 15.Be6 Qe6 16.d4+–) 15.Qb3 Bb7 16.Bd5 Bd5 17.Qd5 Rd8 18.Nf4 g5 (18...Qf7 19.Qf3+–) 19.Ne6 Rd7 20.Qa8 (better is 20.Rae1+–) 20...Ke7+= 21.Nc5?? (better is 21.Qc6 Qe6 22.d4+/–) 21...Ra8–+ 22.Nd7 Kd7 23.d4 g4 24.Rfc1 f4 25.Rc6 fe3 26.fe3 Rc8 27.Rac1 Rc6 28.Rc6 Qg5 29.Kf2 Qf5 30.Ke2 Qe4 31.h3 Qg2 32.Kd3 Qh3 33.Rc1 g3 34.Re1 g2 0–1. kannisogoet – sm1991, internet, 2013.

5.Nf3 e4 6.Nd4 Be7 7.b5 0-0 8.e3 Nbd7 9.Ne6 Qe8 10.Nc7 Qf7 11.Na8 Ne5 12.Qb3 Bd8 13.Nb6 ab6 14.a4 Be6 15.Qc2 Bc4 16.Bc4 Nc4 17.0-0 Bc7 18.Rab1 Ne5 19.Qd1 Nd3 20.Ba3 h6 21.Na2 Qa2 0–1. kannisogoet – arian1984, internet, 2014.

5.Nf3 g6 6.g3 Bg7 7.Bg2 0-0 8.0-0 c6 9.Qb3 Kh8 10.d4 e4 11.Nd2 Be6 12.e3 Nbd7 13.d5 cd5 14.cd5 Bf7 15.Nc4 Nb6 Pawn d5, live or die! 16.Nb6 Qb6 17.Rfd1 Rac8 18.Rac1 Ng4 19.a4 a5 20.b5 Ne5 21.Ne2 Nd3 22.Rc8 Rc8 23.Bg7 Kg7 24.Nd4 Qc5 25.Bf1 Bd5 (25...Qd5 26.Qb1 Nc5 27.b6–/+) 26.Qb1 (26.Ne6!? Be6 27.Qe6=) 26...Ne5–/+ 27.Nb3 Qb4?? (better is 27...Bb3!? 28.Qb3 Rc7–/+) 28.Rd5+= Nf3? (28...Rc3 29.Nd2 Qb1 30.Nb1 Rc1+/–) 29.Kg2+– Rc3 30.Nd2 Qa4 (30...Qb1 31.Nb1 Rc1+–) 31.Nf3 ef3 32.Kf3?? (better is 32.Kg1 Qe4 33.Qa2+–) 32...Rb3= 33.Qd1 Qe4 34.Ke2 Rb2 (better is 34...Qc4 35.Ke1 Qb4 36.Ke2 Qc4 37.Kf3 Qe4 38.Ke2 Qc4=) 35.Rd2+/– Qc4 36.Ke1 Qb4 37.Ke2 (better is 37.Bd3+–) 37...Qc4= 38.Kf3 Qe4 39.Ke2 Qc4 ½–½. kannisogoet – 1leon, internet, 2013.

5.Nf3 h6 6.g3 g5 7.d3 g4 8.Nd2 Bg7 9.Bg2 0-0 10.0-0 c6 11.e3 Be6 12.Qe2 Qd7 13.Rfe1 Na6 14.a3 Nc7 15.a4 Kh7 16.b5 Rae8 17.a5 h5 18.b6 ab6 19.ab6 Na6 20.Qf1 Qf7 21.Nb3 Nb4 22.Ra7 c5 23.Rea1 d5 24.Ba3 dc4 25.Nc5 Nc2 26.Ra2 cd3 27.Ne6 Qe6 28.Qd3 Qa2 29.Na2 Na3 30.Qa3 1–0. kannisogoet – tomoo25, internet, 2014.

5.g3 Be6 6.e3 =+.

5.g3 Be7 6.Bg2 c6 7.d4 e4 8.d5 0-0 9.dc6 bc6 10.Nh3 Ng4 11.0-0 (11.Nd5 a5 12.b5 Ne5=) 11...Qe8 (11...Ne5 12.c5 dc5 13.Qb3 Nf7 14.Rfd1+=) 12.Nf4 (12.Nd5 Bd8+=) 12...g5 (12...Qf7 13.Qa4+=) 13.Nh3 Qh5 Black intends f4 14.b5 f4 (14...Qf7 15.bc6 Nc6 16.Nd5+=) 15.Ne4 Nh2?? (15...Ne5 16.gf4 gf4+=) 16.Kh2 (better is 16.Qd4 Qh6 17.Nhg5 (worse is 17.Kh2 g4+–) 17...Bg5 18.Qh8 Kf7 19.Qh7 Qh7 20.Ng5 Ke8 21.Nh7 Nf1 22.Nf8+– (22.Bf1?! Rf5+–)) 16...Bh3+/– 17.Bh3 g4 18.gf4 Qh3 19.Kg1 Rf5 20.Qd4 (20.Nd6?? Rh5 21.Qd5 cd5 22.cd5 Qh2) 20...Kf7?! (20...Qh6 21.Qh8 Kf7+–) 21.Qg7 Ke8 22.Ng3 (better is 22.Qg8!? Kd7 23.bc6 Nc6 24.Qa8 Kc7+–) 22...Rf7? (better is 22...Rf8!?+/–) 23.Qg8+– Rf8 24.Qe6 Rf6?? (24...Nd7 25.Ne4 d5 26.Nd6 Kd8 27.bc6 Nc5 28.c7 Kc7 29.Nb5 Kb7 30.Qe7 Kb6 31.Qc7 Ka6 32.Qc6 Ka5+–) 25.Bf6 1–0. tyop (1685) – thor77, internet, 2013.

5.h3 Be7 6.e3 0-0 7.Nf3 Nc6 8.b5 Nb8 9.Be2 Qe8 10.a4 Ne4 (10...Qg6 11.0-0+=) 11.0-0 Qg6 12.Nh2 f4 13.Ne4 Qe4 14.Bf3 Qg6 15.Ng4? (15.Bd5 Kh8 16.d3 a6=) 15...c6 (15...e4!? 16.ef4 ef3–/+) 16.e4 (16.ef4 Rf4 17.d4 e4=) 16...h5+= 17.Ne5 (17.Nh2!? Bh3 18.Qe2+=) 17...de5–/+ 18.Bh5 Qg5 19.Bg4 Nd7 20.bc6 bc6 21.d4 Rd8 22.d5 cd5?? (better is 22...Nb6 23.Bc8 Rac8–+) 23.Qd5+– Kh8 24.Qa8 Nc5 (24...Nb6 25.Qa7 Bg4 26.hg4 Nc4+–) 25.Bc8 Ne4 (25...Qf6 26.Rfd1 Re8 27.Rd5+–) 26.Qe4 Rc8 27.Be5 Re8 (27...f3 28.g3 Bf6 29.Bf6 Qf6 30.Rfe1+–) 28.Qf4 Qh6 (28...Qg6+–) 29.Qh6 1–0. elev – powuz, internet, 2013.

6.Nf3 0-0 7.g3 Nc6 8.a3 b6 9.Bg2 Bb7 10.0-0 h6 11.b5 Na5 12.e3 Qe8 13.Bh3 Nh7 14.Bg2 g5 (14...Nf6 15.Re1=) 15.Re1 Nf6 16.Rc1 g4 17.Nd2 Bg2 18.Kg2 Rc8 19.d4 e4 20.a4 c6 21.Ne2 d5 22.Nf4 Bd6 23.Ne2 cb5 24.cb5 Nh7 25.Nc3 Qf7 26.Ne2 Ng5 27.Nf4 Bf4 28.ef4 Nf3 29.Nf3 ef3 30.Kh1 Qh5 (30...Nc4 31.Bc3+=) 31.Ba3 Rfe8 32.Re8 (better is 32.Rc8!? Rc8 33.Bb4=) 32...Re8+= 33.Rc7?? (better is 33.Qf1+=) 33...Qh3 34.Qf1 Qf1 0–1. fjanusz52 – vasile48 (1655), internet, 2013.

6.g3 0-0 7.Bg2 c6 8.Nh3 Be6 9.Ng5= Bd7 10.e4 h6 11.Nf3=+ Qb6 12.a3 a5 13.Qb3 Na6?? 14.c5+– (14.c5 Kh7 15.cb6 ab4 16.ab4+–) 1–0. Fredek (2065) – Grijan (1725), Freundschaftspartie, 5m + 0s, 2006.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nc3).

5.e3 Be7 6.Nf3 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 Be7 6.Nc3).

6.d3 Nbd7 7.g3 g6 8.Bg2 Bg7 9.0-0 0-0 10.e3 (10.Ng5!? Bf7 11.Nf7 Rf7 12.Rb1+=) 10...c6= 11.Qe2 Qe7 12.a4 Rae8 13.d4 (13.Ng5 e4 14.d4 Nb6 15.Ne6 Qe6=) 13...h6 (13...Nb6 14.de5 de5 15.Ne5 Qb4 16.Nd3 Qc4 17.Rfc1–/+) 14.de5 de5 15.Rfe1 (better is 15.Ba3!?+=) 15...Qb4–+ 16.Rad1 (16.Bf1 e4 17.Nd4 Ne5 18.Ne6 Re6–+) 16...Bc4 17.Qd2 Nc5 Black prepares the advance e4 18.Nb1 (18.Ne5 Re5 19.Nb1 Qd2 20.Nd2 Re6 21.Nc4 Na4–+) 18...Qd2 (worse is 18...Qa4 19.Ba3 Nfe4 20.Qc1–+) 19.Nfd2 Bf7 20.Nf3?! (20.Ba3 Na4 21.Rc1 e4–+) 20...Nh7 (20...e4!? 21.Nd4–+) 21.a5 e4 22.Nd4 Nd3 23.Re2 (23.Ba3 Ne1 24.Re1 Rd8 25.Bf8 Bf8–+) 23...Nb2 (23...c5!? 24.Red2–+) 24.Rb2 c5 25.Nf5 (25.Rb7 Rd8 26.Ra7 cd4 27.Na3–+) 25...Bb2 26.Nd6 Rd8 27.Be4 (27.Rd2 Bc1 28.Rd1 Nf6–+) 27...Be5 28.Rd2 Rd6 0–1. kannisogoet – f2023, internet, 2013.

6.d3 Be7 7.g3 0-0 8.Bg2 c6 9.0-0 Nbd7 10.e3 Qc7 (10...h6 11.Rc1=) 11.Qe2 (11.Ng5 Bf7+=) 11...Rad8 (11...h6 12.Nh4=) 12.a4 White plans b5 (12.Ng5 Bf7+=) 12...d5 13.Rfc1 (13.Ng5 Bf7 14.Nf7 Rf7 15.cd5 Bb4 16.dc6 bc6=) 13...Bf7 (better is 13...Bb4!? 14.cd5 Bd5 15.Nd5 Nd5+=) 14.cd5= Qb6 (14...Nd5 15.b5=) 15.b5 (15.dc6 bc6 16.b5 cb5 17.ab5 Bb4+/–) 15...cd5 (15...cb5 16.Nb5 e4+/–) 16.a5+/– Qd6 17.Ba3 Qe6?? (better is 17...Qa3 18.Ra3 Ba3+/–) 18.Ng5+– Ba3 19.Ne6 (19.Ra3?! Qd6 20.Qb2 Rc8=) 19...Be6 20.Ra3 1–0. kannisogoet – dragonne66, internet, 2013.

6.d3 Be7 7.g3 Qd7 8.Bg2 Nc6 9.b5 Nd8 10.0-0 Nf7 11.a4 h5 12.e3 g5 (12...0-0-0 13.a5=) 13.Qe2 (13.Ng5!? Ng5 14.Bb7+/–) 13...h4= 14.Rfd1 (14.Nh4!? gh4 15.Bb7=) 14...0-0-0 15.d4 ed4 (15...hg3 16.fg3 Qe8 17.a5=) 16.Nd4 (16.ed4 hg3 17.d5 gh2 18.Nh2 Ne5 19.de6 Qe6+/–) 16...hg3 17.fg3 Kb8 (17...Rdf8 18.c5 (18.Ne6?! Qe6 19.Nd5 Ne5+=) 18...dc5 19.Bc6+/–) 18.Ne6 (better is 18.Qf3!? Ne4 19.Ne6 Qe6 20.Ne4 fe4 21.Qe4 Qe4 22.Be4+/–) 18...Qe6+= 19.Nd5 Ne5 20.Ne7 (20.a5!?+=) 20...Qe7+= 21.Be5 de5 (better is 21...Qe5!? 22.Qf3 Ne4+=) 22.Qf3+= Ne4 23.Qf5 Rd1 24.Rd1 Nc3 25.Rd7 Qa3 (better is 25...Qe8+/–) 26.Qe5?? (26.Qg5 Qa1 27.Bf1 b6+–) 26...Qc1 (better is 26...Qa1 27.Kf2 Qb2 28.Kg1 Ne2 29.Kf1 Qe5 30.Ke2 Qc3–+) 27.Bf1+– Ne2?? (27...Rc8+–) 28.Kg2 Nc3 (28...Rc8 29.Be2 Qc2+–) 29.Qc7 1–0. kannisogoet – kijano19, internet, 2013.

6.d3 Be7 7.g3 Nbd7 8.Bg2 c6 9.0-0 0-0 10.e3 h6 11.Qe2 Kh7 12.a4 White plans b5 12...g5 Black prepares f4 13.b5 Rb8 14.Rfb1 Rg8 (14...d5 15.Nd2=) 15.e4 f4 16.d4 (16.Nd2!?=) 16...fg3 (16...g4 17.bc6 gf3 18.Bf3 bc6 19.d5 cd5 20.cd5–+) 17.fg3 (better is 17.d5 gh2 18.Kh2 cd5 19.cd5–/+) 17...Bg4?? (better is 17...g4 18.Nh4 ed4–/+) 18.Qd3 White prepares the advance d5 18...Kh8 19.d5 Nc5 20.Qc2 cb5 21.ab5 Qb6 22.Kh1 Bh5 23.Ra2 Bg6 Will e4 fall? 24.Qc1?? (better is 24.Nd2!?=) 24...Nce4?? (better is 24...Nd3 25.Qf1 Nf2 26.Kg1 N2e4 27.Kh1 Nf2 28.Kg1 N6g4–+) 25.Ne4+= Ne4 26.Rba1? (better is 26.Ne5 de5 27.Be5 Bf6 28.Bb8 Rb8 29.Qf1–/+) 26...Nf2–+ 27.Kg1 Nh3?? (27...Nd3 28.c5 Qb5–+ (28...Nc1 29.cb6 Na2 30.ba7–+)) 28.Kh1= Nf2 29.Kg1 Nd3 30.Kh1 (30.c5 Qb5 31.Qc3–+) 30...Nc1 31.Bc1 Ra8 32.Nd2 Rgf8 33.Ne4 (33.Ba3–+) 33...Be4 34.Be4 Rf2 (better is 34...Qd4 35.Bf3 Rf3 36.Bg5–+) 35.Rf2 (35.Bg2 Ra2 36.Ra2 Qd4–+) 35...Qf2 36.Ba3 Qd4 37.Bc2 Qa1 0–1. kannisogoet – myncio (1730), internet, 2013.

6.e3 Be7 7.d4 e4 8.Nd2 d5 9.c5 c6 10.Qb3 0-0 11.g3 h6 12.Bg2 Ng4 13.0-0 g5 14.a4 Nd7 15.h3 Ngf6 16.Ne2 a6 17.b5 ab5 18.ab5 Ra1 19.Ra1 Qc7 20.b6 Qb8 21.Ra7 Nh5 Black prepares the advance f4 22.Qd1 f4 23.ef4 gf4 24.Nf4 Nf4 25.g4?? (25.gf4 Qf4 26.Qe2= (26.Rb7? Qf2 27.Kh1 e3–+)) 25...Nd3 (better is 25...Ng2!? 26.Qf1 Nf4 27.Ra3–+) 26.Bc1 (26.Ba1 N7c5! 27.dc5 Bc5–+) 26...Nf2 27.Qe2 Nd3 28.Ba3 Nb6! 29.Nb3 (29.cb6 Ba3 Combination) 29...Nc4 (better is 29...Qa7 30.Bc1 Nc1 31.Nc1–+) 30.Ra4 (30.Na5 Qa7 31.Nc4 Qa4–+) 30...Nf4 (better is 30...Qg3 31.Bc1 Rf2 32.Qf2 Qf2 33.Kh1–+) 31.Qa2 Na3 (31...Ne3 32.Kh1 Nfg2 33.Qe2–+) 32.Ra3 Ng2 33.Kg2 Qf4 34.Ra8 Qf3 35.Kg1 Qe3 36.Kh1 Bc8 37.Qg2 Qb3 38.h4 Qf3 39.Qf3 ef3 40.Kg1 Bg4 41.Rf8 Kf8 42.Kf1 Bh4 0–1. kannisogoet – antonius62, internet, 2013.

6.e3 h6 7.d4 e4 8.Nd2 Bf7 9.d5 Nbd7 10.a4 Be7 11.Be2 0-0 12.0-0 Bg6 13.Qb3 Kh7 14.Rfd1 Ne5 15.Bf1 (15.Nb5 Bf7+=) 15...Neg4 (15...a5!?=) 16.Nb5 a6 17.Nd4 Nh5? (better is 17...Qd7!?+/–) 18.Ne6+– Qd7 19.Nf8 Rf8 20.g3 Bg5 Black prepares f4 21.h3 Ngf6 (21...Ne5 22.b5+–) 22.h4 Bh4 23.gh4 f4 24.ef4 (24.f3 ef3 25.Nf3 Qg4 26.Bg2 fe3 27.Qe3 Re8+/–) 24...Nf4? (better is 24...Qg4 25.Kh1 Qh4 26.Qh3 Qf2+/–) 25.Qg3 (better is 25.f3+–) 25...N6h5+= 26.Qe3 Qg4 27.Kh2 Qh4 28.Kg1 Rf5?? (better is 28...Qg5 29.Kh1 Qh4 30.Kg1 Qg5 31.Kh2 Qh4 32.Kg1=) 29.Ne4+– Qg4? (better is 29...Rg5 30.Ng5 Qg5 31.Kh2 Qh4 32.Bh3 Bf5+/–) 30.Ng3 Nh3 31.Bh3 Qh3 32.Nf5 Qf5 33.Kf1 Qg4 34.Rd4 Qf5 35.Re1 Nf6 36.Rf4 Qh5 37.Bf6 (37.Bf6 Bf5 38.Qg3 Qh3 39.Kg1 Qg3 40.fg3 gf6 41.Rf5+–) 1–0. kannisogoet – arnold99, internet, 2013.

6.d4 e4+= 7.Ng5 h6 (7...Ng4!? 8.Nh3 e3+=) 8.Nh3= 0-0 9.Nf4 e3 (9...Nc6 10.b5 Na5 11.Qa4+=) 10.fe3+= Ng4 11.Qd3 Bg5 (11...Re8 12.g3 Na6 13.a3+/–) 12.g3 Re8 Attacking the backward pawn on e3 13.Ncd5 c6 (13...Na6 14.a3 c6 15.h3 cd5 16.hg4 Bf4 17.ef4 dc4 18.Qc2+/–) 14.h3+/– cd5 15.hg4 dc4 (15...Bf4 16.ef4 Be6 17.cd5 Bd5 18.Rh5+/–) 16.Qc4+– Kh7 17.gf5 (17.Bg2 Nc6 18.gf5 Bf5+–) 17...Bf5 18.Kf2 (better is 18.Bg2!? Qe7 19.Nd5+/–) 18...Bf4+/– 19.gf4 (19.ef4!? d5 20.Qb3+/–) 19...d5= 20.Qb3 Nc6 (better is 20...Nd7!?=) 21.Bg2+/– Qe7 (better is 21...Be4 22.Be4 Re4+/–) 22.b5 (better is 22.Bd5 Nb4 23.Ba3+/–) 22...Na5= 23.Qa3 Qa3 24.Ba3 Nc4 25.Bc1 (worse is 25.Bd5 Na3 26.Bb7 Rab8+=) 25...Be4 26.Be4 Re4 27.Rh3 Rae8 28.a4 ½–½. Barbarickiy,Yuri – Rechapov,Nikolay, Rtng–Tournament, 2008.

7.Bg2 Nc6 8.b5 Nb8 9.0-0 Nbd7 10.Qb3 Nc5 11.Qd1 Kh8 12.d4 ed4 13.Nd4 Nfe4 14.Ne4 fe4 15.e3 (15.Nb3 Nb3 16.ab3 e3+=) 15...Bf5 (15...Qe8 16.Nb3 Nd3 17.Bd4+=) 16.a4 (better is 16.Nf5!? Rf5 17.Be4 Ne4 18.Qg4+=) 16...Bg6 17.Qc2 Qd7 18.Ba3 Nd3 19.Rfd1? (better is 19.Qd2+=) 19...Rf2–+ 20.Rd2 Raf8 21.Bf1? (21.Rf2 Rf2 (21...Nf2?! 22.c5–/+) 22.Qc3 Bg5–+) 21...Rd2 (better is 21...Bg5 22.Rf2 Be3 (22...Nf2?! 23.Qd2–+) 23.Bd3 ed3–+) 22.Qd2 Nf2 23.Ne2 Nh3 (better is 23...Bf6!? 24.Bb2 Bb2 25.Qb2 Nd3–+) 24.Bh3–/+ Qh3 25.Nf4 Qg4 26.Rf1 h6 (26...Bf7–/+) 27.Qf2 (27.Qa5 Rc8=) 27...Bh5 (27...Bf5 28.Qd2 b6 29.Bb2–/+) 28.Bb2 (28.Qg2!? Qf5 29.Nh5 Qh5 30.Qe4+=) 28...Kg8–/+ 29.Qg2 g5?? (29...Bg6 30.Qd2 Bf7 31.Nd5–/+) 30.Nh5?? (better is 30.h3 Qf3 31.Rf3 Bf3 32.Qd2 gf4 33.Qd5 Rf7 34.ef4+–) 30...Rf1+= 31.Qf1 Qh5 32.Bd4 b6 33.h4?? gh4–+ 34.gh4 Qg4 35.Qg2 Qg2 36.Kg2 Bh4 37.Kh3 Bg5 38.Kg4 Kf7 39.Kh5 Ke6–+ 40.Bg7? d5 41.cd5 Kd5 42.Bd4 Kc4 43.Be5 Be3 44.Bc7 Kb4 45.Bb8 Bc5 46.Bg3 Ka4 47.Be1 Kb5 48.Kh6 Kc4 49.Kg6 a5 50.Kf5 a4 51.Ke6 a3 52.Ke5 a2 53.Ke4 1–0. kannisogoet – rd26, internet, 2013.

7.Bg2 e4 8.Nd4 a6 9.a4 c5 10.bc5 dc5 11.Nb3 Nc6 12.0-0 Nd4 13.Nd4 (13.d3!? Be6 14.de4 Bc4 15.Nd2=) 13...cd4–/+ (13...Qd4?! 14.d3 ed3 15.Nd5 Qb2 16.Ne7 Kh8 A) 17.Nc8?? de2 (worse is 17...Rac8 18.Qd3 Rcd8 19.Qf5+=) 18.Qc1 ef1R 19.Kf1 Qc1 20.Rc1 Rac8–+ (worse is 20...Rfc8 21.Bb7 Ne4 22.Ke2–+); B) 17.Qd3+=) 14.e3?? (better is 14.Na2–/+) 14...dc3–+ 15.dc3 (15.Bc3 Be6 16.Rc1 Qd3–+) 15...Qc7 16.Qe2 Be6 17.Rfd1 Bc4 18.Qc2 Bd3 19.Qb3 Kh8 20.Bf1 Bf1 21.Kf1 Ng4 22.Rd4 Nh2 23.Kg2 Nf3 24.Rc4 Qd7 25.Rd1 Qe8 26.Rc7 Bf6 27.Qb7 Rb8 28.Qa7 Rb2 29.Rdd7 Qg6 30.Kf1 Ne5 31.Rd1 Rbb8 32.Kg2–+ Qg4 33.Rh1 Qf3 34.Kg1 Rb1 35.Kh2 Qh1# 0–1. kannisogoet – mirek188, internet, 2013.

7.Bg2 Be6 8.d3 c6 9.0-0 Nbd7 10.a4 h6 11.e3 g5 12.Qe2 g4 13.Nd2 h5 (13...d5 14.b5=) 14.d4 White intends c5 (14.f4 gf3 15.Nf3 e4 16.de4 fe4+/–) 14...h4 15.Rfd1 Kg7 16.de5 de5 17.c5 (better is 17.b5+=) 17...Nd5?? (better is 17...h3 18.Bh1 a5+=) 18.Nd5+/– cd5 19.Nf1 Nf6 Black plans e4 20.f4?? (better is 20.Be5 a5 21.Qb2+–) 20...e4 21.Be5 Kg6 22.h3 (22.Bd4 hg3 23.hg3 a5+=) 22...Rh8 23.hg4 Ng4 (better is 23...fg4 24.gh4 Rh4+/–) 24.Bf3?? (better is 24.Bh8 Qh8 25.Bh3+/–) 24...Ne5–+ 25.fe5 Bg5?? (25...ef3 26.Qf3 a5 27.Rd4–+) 26.Ra2? (26.Bg2 hg3 27.Ng3 Qc7–+) 26...Qf8 (26...ef3 27.Qf3 a5 28.gh4 Rh4 29.ba5–+) 27.Qh2? (better is 27.Bg2–/+) 27...Qh6 28.Rad2 Be3 29.Ne3 Qe3 30.Qf2 Qf3 31.Qf3 ef3 32.Kf2 hg3 33.Kf3 Rh3 34.Kg2 Rah8 35.Rd5 Bd5 36.Rd5 f4 37.Rd6 Kf7 38.Rf6 Ke7 39.Rf4 Ke6 40.Rf5 Kf5 0–1. kannisogoet – dinbor, internet, 2013.

7.Bg2 Qe8 8.0-0 Bd8 9.e3 e4 10.Nd4 Nbd7 11.d3 b6 (11...a5 12.a3=) 12.de4 c5? (better is 12...fe4 13.Nc6 Bb7 14.Nd8 Rd8+=) 13.bc5 dc5 14.Ndb5 Nh5?? (better is 14...Rb8 15.ef5 Ne5+–) 15.Nd6 (15.Qd5 Qf7 16.Qa8 Be7 17.ef5 Ndf6+–) 15...Qg6 (15...Qe5 16.f4 Qe7 17.Qd5 Kh8 18.Qa8 Qd6 19.Qc8+–) 16.Nc8 (better is 16.ef5 Qf6 17.Ba8 Ba6+–) 16...Rc8 17.ef5 (better is 17.Qd7 Rc7 18.ef5 Rd7 19.fg6 Rd2 20.gh7 Kh7+–) 17...Rf6 (17...Qe8 18.Nb5 Be7+–) 18.fg6 (18.fg6 Rf8 19.Qd7+–) 1–0. kannisogoet – smaxmm, internet, 2013.

7.Bg2 Qe8 8.0-0 Qg6 9.e3 Nc6 10.b5 Nd8 11.d4 e4 12.Nd2 Qh6 13.d5 Ng4 14.h3 Nf6 15.Ne2 Nf7 16.Nf4 Ng5 17.h4 Nf7 18.f3 g5 19.fe4 (better is 19.hg5 Ng5 20.Bd4=) 19...gf4–/+ 20.gf4 (20.ef4!? Re8–/+) 20...fe4 21.Ne4 Ne4 22.Be4 Qh4 23.Rf2 (23.Qd4 Qg3 24.Kh1 Qh3 25.Kg1 Qg4 26.Kh2 Qh5 27.Kg1=) 23...Bf6?? (better is 23...Ng5 24.Rg2 Kf7–+) 24.Rh2 (24.Rg2 Ng5 25.Bf6 Rf6+–) 24...Bh3 (better is 24...Qg3 25.Rg2 Qg2 26.Kg2 Bb2 27.Bh7 Kg7+=) 25.Bg2?? (25.Bf6 Qf6 26.Rh3+/–) 25...Qg4?? (better is 25...Bb2 26.Rh3 Qf6–+) 26.Bf6 Qd1 27.Rd1 Bf5 28.Bf3 Nd8 29.Rg2 Kf7 30.Bh4 Rg8 31.Bh5 Kf8? 32.Be7! Ke7 33.Rg8 a6 34.a4 ab5 35.ab5 c6 36.Kh2 cb5 37.Rdg1 Ra2 38.R1g2 Rg2 39.Kg2 bc4 40.Bd1?? c3–/+ 41.Rg7 Kf6?? 42.Rc7+– Be4 43.Kf2?? Bd5+/– 44.Rc3 Bc6 45.Bf3 d5 46.e4?? de4= 47.Be2 Ne6+= 48.Kg3 Nd4 49.Bc4 b5 50.Bf1 Nf5 51.Kg4 (51.Kg4 Bd7 52.Kh5–+). kannisogoet – smaxmm, internet, 2013.

8.0-0 Na6 9.b5 Nc5 10.a4 Ne6 11.d4 e4 12.Nd2 d5 13.c5? (13.e3 c5+=) 13...Qc7 (better is 13...Nd4 14.Rc1 Ne6–+) 14.e3= Ng5 15.a5 Nh5?? (better is 15...cb5 16.Nb5 Qc6=) 16.b6+– ab6 17.ab6 (17.Qh5?! bc5 18.dc5 Ra5+/–) 17...Qb8 18.Qh5 Ra1 19.Ra1 Be6 20.f4 (20.Ra7 Qc8 21.Qe2 Qd7+–) 20...Bf7? (20...ef3 21.Bf1 Re8+/–) 21.Qe2 Ne6 22.Qd1 Bf6 23.Ra7 Nd4 24.ed4 (better is 24.Nce4!? fe4 25.Bd4 Bd4 26.ed4 Be6+–) 24...Bd4 25.Kh1 Bc5 26.Na4 (better is 26.Ra1!? Bb6 27.Nb3+–) 26...Bb6+/– 27.Nb6 Qa7 28.Nd7 (better is 28.Qg1 Bh5 29.Qd4+/–) 28...Ra8 29.Qc2 d4 (29...Qf2 30.Qc1 d4–/+) 30.Ne5 Bd5 31.Nb3? Qb6 32.Nc5? Qb4 33.Bd4?? Qe1 34.Bg1 Ra1 35.Nf3 ef3 36.Bf3 Qg1# 0–1. kannisogoet – voronyi, internet, 2013.

8.0-0 Nbd7 9.Qb3!? =.

8.0-0 Nbd7 9.e3 e4–/+ 10.Nd4 Ne5 11.Qb3 Kh8 (11...c5 12.bc5 dc5 13.Ndb5–/+) 12.a4 (better is 12.f3 c5 13.Nc2+=) 12...Be6?? (better is 12...c5 13.bc5 dc5–/+) 13.Ne6+– Qd7 14.Nf8 Rf8 15.Rfd1 Nd3 16.Bf1 Ne5 17.d4 Nf3 18.Kh1 (18.Kg2 d5+–) 18...Qe8 19.Bg2 (19.h3!? Qh5+–) 19...Qh5 20.h4 (better is 20.h3+–) 20...Ng4= 21.Qc2?? (21.Bf3 Nf2 22.Kg1 Qf3 23.Kh2 Bh4 24.Rg1 Rf6 25.Rg2 Bg3 26.Kg1 Rh6 27.Rh2 Bh2 28.Kf1 Nd3) 21...Nh4 (21...Bh4 22.Bh3 Bg3 23.Kg2 Nf2 24.Qf2 Bf2 25.Kf2 Qh3 26.Rh1–+) 22.Kg1?? (22.Bh3 f4 23.gh4 Qh4 24.Kg2 fe3 25.Ne4 Nf2 26.Rh1 Ne4 27.Kg1–+) 22...Nf3 23.Kf1 Ngh2 24.Ke2 Nd4 25.Kd2 Nc2 26.Kc2 Nf3 27.Rh1 Qf7 28.Ne2 Qc4 29.Nc3 Qd3 30.Kb3 Bf6 31.Bf3–+ ef3 32.Rad1 Qa6 33.b5 cb5 34.ab5 Qb6 35.Rd5 a5 36.Rhd1 Be7 37.Na4 Qc7 38.Rc1 Qd7 39.Nb6 Qe6 40.Rc7 Qe4 41.Rc4?! Qe6 42.Rc7 Bf6 43.Bf6 gf6 44.Rd7 a4! 45.Ka3 Qe4 46.R7d6?? Qb1 47.Rd3? Qa1 48.Kb4 Qb1 49.Kc5?? a3! 50.Ra3 Qc2 51.Kd5 Qd2 52.Ke6 Re8 53.Kd7 Rd8! 54.Kd8 Qd6 55.Nd7 Kg7 56.Ra7 Kf7 57.Rb7–/+. kannisogoet – pionul, internet, 2013.

8.0-0 Nbd7 9.Ng5 Nb6 10.d3 Ng4 11.Nf3 e4 12.de4 Ne5 (12...fe4!? 13.Ne4 Nc4+=) 13.Ne5+= de5 14.Qd8 (14.c5!? Qd1 15.Nd1+=) 14...Rd8= 15.c5 Nc4 16.Bc1 a5 17.ba5 (17.b5 cb5 18.ef5 Rb8 19.Bd5 Kf8+=) 17...Bc5 18.ef5 Bd4 19.Ne4? (better is 19.Bg5 Re8 20.Rfc1=) 19...Ba1–+ 20.Bg5 Bf5 (20...Rd5 21.Ra1 Bf5 22.Rc1–+) 21.Ra1 (21.Bd8 Bd4 22.Bb6 Be4 23.Be4 Nd2 (worse is 23...Nb6 24.ab6 Ra2 25.e3=) 24.Bc6 bc6–/+) 21...Rd4 22.Nc5 Ra5 (22...Na5 23.e4 Bc8 24.Be3–+) 23.Nb7 Rb5 (23...Ra2 24.Bd5 cd5 25.Ra2–/+) 24.Nd8 (24.Bc6 Rb6 25.e3 Rd3=) 24...h6 (24...Bb1 25.Bc6 Rd1 26.Kg2 Ra5=) 25.Be3?? (better is 25.Nc6 hg5 26.a4=) 25...Rd8–+ (25...Ne3?! 26.Nc6 Nc2 27.Nd4 ed4 28.Rc1–+) 26.Rc1 (26.Bc6 Rb2–+) 26...Na5 (26...Ne3!? 27.fe3 Ra5 28.Bc6 Ra2 29.e4–+) 27.a4 Rb4 28.h3 e4 29.g4 Bg6 30.f3 Nc4 31.Bf2 e3 32.Be1 Nd2 33.Rc6 Be8 34.Ra6 Ba4 35.f4 Bb5 36.Ra7 Rb1 37.Kh2 Re1 38.Rb7 Be2 39.Bc6 Bf3 40.Kg3 Bc6 41.Rb6 Be4 42.Rb2 Rf1 0–1. kannisogoet – voronyi, internet, 2013.

8.0-0 Be6 9.d3 Qd7 10.a4 Kh8 11.e3 Bg8 12.Qe2 Qe6 Black intends e4 13.Ng5 Qd7 14.Nf3 Qe8 15.d4 White prepares c5 15...e4 16.Nd2 Nbd7 17.Rae1 d5 18.c5 b6 19.f3 bc5 20.bc5 (worse is 20.dc5 Rb8 21.Ba3 a5 22.ba5 Nc5–/+) 20...ef3 21.Nf3 a5 22.Rb1 Ng4 23.h3 Ngf6 24.Nh4 Ne4 25.Ne4 (worse is 25.Rf5 Ng3 26.Qg4 Nf5 27.Nf5 Bf6–+) 25...fe4 26.Rf8 Qf8 27.Rf1 Qe8 28.Nf5 Bf6 29.Nd6 Qg6 30.Qf2 Rb8 31.Bc1 h5 32.Qf4 (32.Bd2 Bd8+=) 32...Rb4 33.Nf5 (33.Ne4 Be5 34.de5 de4 35.Qh4=) 33...Ra4 (33...Be6 34.Nd6+=) 34.Nh4?? (better is 34.Qd6!? Qe8 35.Qc6+=) 34...Qg5 (34...Qh6 35.Qc7 Bh4 36.gh4 Qe6–/+) 35.Nf5? (better is 35.Qd6 Rc4 36.Kh2 Rc1 37.Rc1 Qe3 38.Rd1 Bh4 39.gh4=) 35...Qf4–+ 36.Rf4 (better is 36.gf4 Ra2 37.Nd6–+) 36...Ra1 37.Rf1 a4 38.Bb2 Rf1 39.Kf1 Nc5! 40.Nd6 Nd3 41.Ba3 Be7 42.Ke2 Bd6 43.Bd6 Nc1 44.Kd2–/+ Nb3 45.Kc2 g5 46.Bf1 Kh7 47.Ba6 Kg6 48.Bb7 Be6 49.Bc6–/+ Kf5?? 50.Ba4?? Na5+= 51.Bb4 Nc4 52.Bd2 h4 53.g4 Kf6 54.Bc6 Ke7 55.Kd1? Kd6 56.Ke2?? Kc6 57.Kf2 Kb5 58.Be1 Ka4 59.Kg2 Kb3 60.Bf2 Kc2 61.Kg1 Kd2 62.Kf1 Kd3 0–1. kannisogoet – jurekgogo, internet, 2013.

6.b5 Nb8 7.Bg2 =.

6.b5 Nd4 7.e3 (7.Bh3 Ne4=+) 7...Ne6 8.Bg2 Be7 9.Nge2 0-0 (9...a6 10.f4=) 10.0-0 Rb8 (10...a6 11.ba6 Ra6 12.d4=) 11.d4 (11.d3 f4=) 11...e4 12.a4 c6 13.f3 d5 14.fe4 fe4 15.c5 (15.Qb3 Ra8=) 15...Ng4 16.Bc1 Bg5 17.Nf4 Bf4 18.ef4 Nf6 19.Be3 a6 20.h3 Bd7 21.b6 Qe7? 22.g4 Ne8 23.Qd2 Qh4? 24.Bf2?? Qh6+= 25.g5 Qh5 26.Bg3 Nd8 27.f5 Bf5?? 28.Bb8+– Bh3 29.Rf8 Kf8 30.Rf1 Kg8 31.Qf4 Bg2 32.Qf8 (32.Kg2?! Ne6 33.Qf5 Qg5 34.Qg5 Ng5+–) 1–0. Fredek (2065) – Grijan (1725), Freundschaftspartie, 5m + 0s, 2006.

6.b5 Ne7 7.Bg2 c6 8.d4 e4 9.Nh3 d5 10.Qa4 Bd7 11.0-0 cb5 12.cb5 Ng6 13.Qb3 Be6 14.f3 Bd6 15.Ng5 Bg8 16.fe4 fe4 17.Bh3 h6?? (better is 17...Nf8 18.Bg2 h5+=) 18.Ne6+– Qe7? (better is 18...Be6 19.Be6 Ne7 20.Bd5 Ned5 21.Nd5 Rf8+–) 19.Nd5 Nd5 20.Qd5 e3 21.Qe4 Bh7 (21...Be6 22.Be6 (22.Qe6?! Qe6 23.Be6 Nf8 24.Bf7 Kd8+–; worse is 22.Qg6 Bf7 23.Rf7 Qf7 24.Qd6 Rd8 25.Qe5 Qe7+–) 22...Nf8 23.Rf7 Qe6 24.Rf8 Ke7 25.Qb7 Kf8 26.Qa8 Qe8 27.Rf1 Ke7 28.Qb7 Kd8 29.Rc1+–) 22.Ng7 Kd8 23.Ne6 Ke8 24.Qf3 Bg8 25.d5 Rh7 (25...Be6 26.Be6 Rf8+–) 26.Qg4 Bf7 27.Bf6 Qd7 (27...Ne5 28.Qd4 Be6 29.Be7 Ke7 30.Be6 Kd8+–) 28.Ng7 (28.Ng7 Kf8 29.Qd7 Bg3 30.hg3+–) 1–0. pcmvr (2765) – snowcert (2480), net–chess.com, 2014.

5.Qa4 c6 6.b5 d5 (6...Bd7!?-/+) 7.Be5= Bc5 8.bc6 (8.d4!? Nfd7 9.Nf3 (9.Bg7? Qg5 10.e3 Qg7-+) 9...cb5 10.Qb5=) 8...Nc6=+ 9.d4 (9.e3 Bd7 10.Bf4 Nd4=+) 9...Bb6 (better 9...Bb4!? 10.Nd2 Bd7 11.Bf6 Qf6-+ (11...gf6?! 12.Qc2=+)) 10.e3=+ 0-0 11.Qb3 (11.Nf3!?-/+) 11...Ne5 12.de5 Kh8?? (better 12...Ba5 13.Ke2 Ne4-/+) 13.ef6+= Qf6 14.Nc3 Ba5 (14...f4 15.Nf3 Bg4 16.Be2=+) 15.Rc1+/- Be6 (better 15...f4 16.Nf3 Bg4+=) 16.Qb7?? (better 16.Qa3 b6 17.Ba6+/-) 16...Bc3-+ 17.Kd1 Rab8 (17...d4!? 18.Bd3-+) 18.Qa7 d4 19.Ne2 de3 (better 19...Ra8 20.Qb6 Ba2 21.Qf6 A) worse 21...gf6 22.Nc3 (22.ed4?? Bb3 23.Rc2 Ra1 24.Nc1 Rd8-+; 22.Rc3? dc3 23.Nc3 Bb3 24.Ke2 Rfc8-+) 22...Bb3 23.Kd2 dc3 24.Kc3 Rfc8 25.Kb2= (25.Kb3?? Rc1 26.Kb2 Rc7-+); B) 21...Bb3 22.Rc2 Ra1 (worse 22...gf6 23.Nc1 Ra1 24.Bd3-+) 23.Nc1 Rf6-+) 20.Rc3= (worse 20.Nc3 Qd8 21.Nd5 Qd5 22.Qd4 Qd4 23.Bd3 Qd3 24.Ke1 Qd2 25.Kf1 Qf2) 20...Rb1 21.Rc1?? (21.Kc2 Rfb8 22.Qc7-/+) 21...Rd8 22.Ke1 (22.Qd4 Rd4 23.Ke1 Qe5 24.Rb1 Qa5 25.Rb4 Qb4 26.Nc3 Qc3 27.Ke2 Qd2 28.Kf3 Qf2) 22...Rc1 23.Nc1 Qc3 24.Ke2 Qd2 25.Kf3 Bd5 (25...Qf2) 26.Kg3-+ Qf2 (26...Qc1?! 27.Qe3 (27.fe3 Qe1 28.Kh3 g5 29.Qd4 Kg8-+) 27...Qc7 28.f4=+) 27.Kh3 f4 (27...Bg2 28.Bg2 g5 29.Qa4 h5 30.Qd4 Rd4 31.Re1 g4) 28.Nd3?? (better 28.Qe7 Ra8 29.Nd3 Qa2 30.Nf4+-) 28...Be6 29.g4 Qf3 (29...Qf3 30.Kh4 Qg4) 0-1. mirabi – artground, Rated Blitz tournament, lichess.org, 2014.

5.Qb3 A) 5...dc5 6.b5 Qd5 (6...Qe7 7.Na3 Be6 8.Nc4 Nbd7 9.Nf3) 7.Nf3 Qb3 8.ab3 e4 9.Ne5; B) 5...Nc6 6.e3 e4 7.Nh3 dc5 8.Ng5 Qe7 9.Bc4.

5.Nc3 dc5 6.b5 Qd6 7.Nh3 Nbd7 8.e3 Nb6 9.f4.

5.d4 Be6 6.de5+= de5 7.Qd8 Kd8 8.Be5 Nbd7 (8...Nc6 9.Bc3 a5 10.ba5=+) 9.Bc3 (9.Bf6 Nf6 10.Nc3 a5=) 9...c6 (9...a5!? 10.ba5 Nc5=+) 10.Nf3+= h6 (10...a5!? 11.Nd4 Ke7+=) 11.e3 Kc7 (11...a5 12.Nd4 (worse 12.ba5 Nc5 13.Bf6 gf6+=) 12...Bf7 13.ba5 Nc5 14.Nf5+/-) 12.Nbd2 (12.Nd4 Re8+-) 12...Re8 13.Be2 (13.Nd4 Nd5 14.Bc4 f4+/-) 13...Nd5 14.Bd4 (better 14.Rc1+/-) 14...Nb4=+ 15.Bd3?? (better 15.Rc1=+) 15...Nd3-+ 16.Ke2 Bc4 (better 16...N7c5 17.Rhd1 b6-+) 17.Nc4=+ Nb4 (17...N7c5!? 18.Rhd1 Nf4 19.Kf1 Ng6=+) 18.Rhc1 (18.Rab1 Nd5 19.Nd6 Bd6 20.cd6 Kd6 21.Rb7 Rhg8+/-) 18...Na6 (18...Nc5 19.Nce5 Ne6 20.Ba7=) 19.Rab1 (19.Nd6!? Re6 20.Nf5+=) 19...Nac5= 20.Be5 (20.Nh4 Rg8 21.Nf5 g6=) 20...Kc8 21.Nd6 (21.Bd4 Rg8=+) 21...Bd6-/+ 22.Bd6 Ne4 23.Ba3 Re6 24.Rb2 Rhe8 25.Nd4 Rg6 26.Nf5 Rg2 27.Ne7? (27.Kf3 Rg5 28.Ne7 Kc7 29.Ke4 c5-/+) 27...Kd8?? (better 27...Re7 28.Kf1 Rh2-+) 28.Rb7-/+ Re7?? (better 28...c5 29.Nc6 Kc8 30.Ra7 Re6-/+) 29.Be7+- Ke7 30.Kf3 Rf2 31.Ke4 Rh2? (31...Rf6 32.Ra7 Rd6 33.a4+-) 32.Rc6 (better 32.Rd1 Rh4 33.Kf3+-) 32...Ra2 33.Rcc7 (better 33.Rg6!? Rd2 34.Rg7 Ke6 35.Ra7 Nc5 36.Kf3+-) 33...Rd2+/- 34.Kf5 (34.Ra7 Rd6+/-) 34...a5 35.e4 a4 (35...Rd4=) 36.e5 (better 36.Ra7!?+=) 36...a3=+ 37.e6 (37.Ra7!? a2 38.Ra5=+) 37...Rd5-/+ 38.Kg6 Rd6?? (38...Ke6 39.Rc6 Ke7 40.Kg7 Ra5=) 39.Kg7 (better 39.Rd7 Ke6 40.Rd6 Kd6+-) 39...a2?? (39...Ke6!? 40.Ra7 Rd3=) 40.Ra7 (better 40.Rd7 Rd7 41.Rd7 Ke6 42.Ra7+-) 40...Ke6+= 41.Ra2 h5 42.Re2 Ne5? (better 42...Kf5!?+=) 43.Rf7+- Rd4 44.Rf6 Kd5 45.Rf5 h4?? (better 45...Re4 46.Ra2 Rg4 47.Kh6 Ke4+-) 46.Ree5 (46.Rfe5 Kc6+-) 46...Kd6 (46...Kc4 47.Kf6+-) 47.Kf7 h3 48.Re6 Kd7 49.Rh5 Rd3 50.Rh7 Kd8 51.Rh8 (51.Re7 Rd7 52.Ke6 Re7 53.Re7 h2 54.Rh7 Kc8 55.Kd6 h1Q 56.Rh1 Kb7 57.Rb1 Ka6 58.Kc5 Ka7 59.Kc6 Ka8 60.Kc7 Ka7 61.Ra1) 51...Kd7 52.Re7 Kd6 (52...Kc6+-) 53.Rd8 Kc6 54.Rd3 h2 1-0. alaska - valyscorpion (1680), Rated Classical game, lichess.org, 2013. (=1.c4 f5 2.b4 e5 3.Bb2 d6)

5.d4 Be7 6.de5= Ng4 (better 6...de5!? 7.Qd8 Kd8=) 7.ed6+/- cd6 8.cd6 (8.Bg7!? Rg8 9.Bd4+/-) 8...Qb6 (worse 8...Bd6 9.Qa4 Nc6 10.a3= (10.Bg7? Bb4 11.Nc3 Rg8-+)) 9.Qd4 (worse 9.Bg7 Qf2 10.Kd2 Qf4 11.e3 Qd6 12.Bd4 Bf6-/+ (worse 12...Qb4 13.Nc3=)) 9...Bd6 (9...Qd4!? 10.Bd4 Bd6 11.Bg7 Bb4 12.Bc3 Nc6+/-) 10.Qb6 ab6 11.Bg7 Rg8 12.Bc3 Nc6 13.b5?? (better 13.a3+-) 13...Nb4-/+ 14.h3 Nc2 15.Kd2 Nf2 16.Kc2 Nh1 17.Nf3 (better 17.e3!?-/+) 17...Ng3-+ 18.Nbd2 Be6 (18...Nf1 19.Nf1 Rg2 20.Nd4-+) 19.a4 Rc8 20.Kb2 (20.Kd3 Nf1 21.Rf1 Rg2-+) 20...Nf1 21.Rf1 Rg2 22.Nd4 Ke7 (better 22...Be5!? 23.N2f3 Bg7-+) 23.Nf5-/+ Bf5 24.Rf5 Re2 25.Kb3 (25.Rf3 Rf8 26.Rd3 Bc5-+) 25...Re3 26.Nc4 Rh3 27.Rd5 (better 27.Rf7 Kd8 28.Rb7-+) 27...Ke6?? (better 27...h5-+) 28.Rd6+- Ke7 29.Rb6 Rc7 30.Kb4 Rh4?? (30...Rh1+-) 31.Bf6 Kf7 32.Bh4 h5 (32...Ke8 33.Nd6 Kd7 34.Nb7+-) 33.Bg3 Rd7 (33...Re7 34.Nd6 Kg8 35.Rb7+-) 34.Ne5 (34.Ne5 Ke8 35.Nd7 Kd7 36.Rb7 Ke6 37.b6 Kf5 38.Rf7 Kg6 39.Rf4 Kh7 40.b7 Kg6 41.b8Q Kh7 42.Rf7 Kg6 43.Qg8 Kh6 44.Qg7) 1-0. amnezia (1790) - leonid75 (1825), Rated Classical game, lichess.org, 2014.

5.cd6 Qd6 6.Nf3 e4 7.Nd4 Nc6 8.Nb5 Qe7 9.N1a3.

5.cd6 Bd6 6.e3 Be6 7.Qa4 c6 8.b5 0-0 (8...a6 9.d4 Nd5 10.Nf3-/+) 9.bc6 (9.Nf3!? e4 10.Nd4=+) 9...Nc6-/+ 10.Bc4 Qe7 11.Nf3 h6 (11...Nb4 12.Be2 a6 13.Nc3-/+ (13.Ne5? b5 14.Qd1 Qc7-+)) 12.Nc3 (12.Be6 Qe6 13.Qb3 Qb3 14.ab3 e4-/+) 12...e4-/+ 13.Nh4 Kh7 14.h3? (better 14.Be6!? Qe6 15.Qb5-/+) 14...Ne5 (14...Bc4 15.Qc4 Ne5 16.Qb5-+) 15.Be6 Qe6 16.f3? (better 16.0-0 Nd3 17.Qb5-+) 16...Nd3 17.Ke2 Nb2 18.Qc2 (18.Qb5 Nh5 19.Qb2 Ng3 20.Kf2-+) 18...Qc4 19.Kf2 Nd3 20.Kg1 Rac8 (better 20...Nd5!? 21.Qa4 Qa4 22.Na4-+) 21.Nf5 Bb8 (21...Be5 22.Qb3 ef3 23.gf3-+) 22.fe4 (22.Qb3-+) 22...Ne4 23.Nd4 Nc3 24.dc3 Qc3 25.Qd1 (25.Qc3 Rc3 26.h4 Nf2-+) 25...Nf2 (better 25...Nc1 26.Rh2 Qe3 27.Kh1 Qg3 28.Nf3 Rf3 29.Qg1 Rf1 30.Qf1 Qh2) 26.Qb1 Kh8 27.Nb5 (27.Qe1-+) 27...Qe3 28.g4 (28.Qh7 Kh7 29.g4 Ng4 30.Kg2 Qg3) 28...Ng4 29.Kg2 Qf2 (29...Qg3) 0-1. vickyvictors – Manitou, Rated Classical game, lichess.org, 2013.

5.cd6 Be7?? 6.de7+- Qe7 7.Qa4 Nc6 8.b5 Nd4 (8...Nb4 9.Nc3+-) 9.Bd4 (9.e3 Qb4 10.Qb4 Nc2 11.Kd1 Nb4 12.Be5 Ng4+-) 9...ed4 10.Qd4 0-0 11.e3 Rd8 12.Bc4 Kh8 13.Qh4 Qb4 14.Nf3 Qb2 15.0-0 Qa1 16.Nc3 Qb2 17.Nd5 (better 17.Rb1 Qa3 18.Ne5+-) 17...Qc2?? (better 17...Rd5!? 18.Bd5 Qb5+/-) 18.Ne5 (18.Nf6 f4 19.Ng5 gf6 20.Nf7 Kg7 21.Qh6 Kg8 22.Qf6 Qc4 23.Nh6) 18...Be6?? (18...Rd5 19.Bd5 h5+-) 19.Nc7 (19.Nf6 f4 20.d3 Qf2 21.Rf2 gf6 22.Qf6 Kg8 23.Be6) 19...Bc4+= 20.Na8 (better 20.Qc4 Qc4 21.Nc4=) 20...Bf1 21.Nf7 Kg8 22.Nd8 Qd1 (22...Bb5!? 23.h3 Qd2=+) 23.h3=+ h6 (better 23...Bb5 24.Kh2 Qd2=+) 24.Kh2?? (24.Qb4 Qe1 25.Qe7 (25.Nb7?? Ne4 26.Qe4 Bd3 27.Kh2 Be4-+) 25...Bb5 26.Kh2 Qf2 27.Ne6=) 24...g5?? (better 24...Qd2 25.Ne6 Qd5-+) 25.g4 (better 25.Qh6 Qh5 26.Qf6+-) 25...gh4 26.Ne6 (26.Nc7 Qf3 27.Nb7 Qg2) 26...Qf3 27.Nac7 (27.Nf4 Qf2 28.Kh1 Ne4 29.gf5 Ng3) 27…Qg2 0-1. amnezia (1795) - Daba754 (1885), Rated Bullet game, lichess.org, 2014.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.c5).

5.Nf3 e4!? 6.Ng5 h6 –/+.

5.Nf3 Be6 6.Ng5 Bd7 7.e4? h6–/+ 8.Nf3 Be7 9.ef5= Bf5 10.cd6 cd6 11.Bb5 Nc6 12.Qb3 Qb6=+ 13.Nc3 0-0-0 14.Nd5?? Nd5?? 15.Qd5 a6?? 16.Bc6+= bc6 17.Rc1 Kb7?? 18.Qa5?? Qa5–/+ 19.ba5 Bf6 20.d4 e4 21.Nd2 Rhe8 22.0-0 e3 23.fe3=+ Bd3 24.Rfe1 d5 25.Rc3 Bg6 26.Rb3 Ka7 27.Rb6 Re6 28.Nb3= Be7 29.a4 Rb8 30.Bc3 Rb6–/+ 31.ab6 Kb6 32.Ba5 Kb7 33.g3 Bc2–/+ 34.Nc5 Bc5–+ 35.dc5 Ba4 36.Rf1 Rf6 37.h4 Rf1 38.Kf1 Bb5 39.Kf2 Kc8 40.Kf3 Kd7 41.Kf4 Ke6 42.g4 g6 43.Bd8 Bd3 44.g5 h5 45.Bb6 Be4 46.Ba5 Bc2 47.Bc3 Be4 ½–½. rabelloenter (2000) – pops (2150), net–chess.com, 2006.

6.Nc3 Nc6 7.Nf3 Nb4 8.d4 Qa5 9.de5.

6.e3 b6 7.Nf3 Bb7 8.g3 (8.Bc4 Qe7=) 8...Qc7 (8...a6 9.Bg2=+) 9.Bg2 Be7 (9...Nc6 10.Qb3=) 10.0-0 0-0 11.d4 (11.Nc3 a6=) 11...Nbd7 (11...e4 12.Nfd2=+) 12.de5 de5 13.Nbd2 (13.Nc3 Kh8=) 13...Rac8 14.Qe2? (14.a3 Bd5=+) 14...Qd6 (14...Qc2 15.Rab1 Bf3 16.Bf3-/+) 15.Rad1 (15.Rfc1 e4 16.Nd4 Qb4 17.Nf5 Rc1 18.Bc1 Bc5=+) 15...e4 (15...Rc2!? 16.Ne1 Rb2 17.Bb7 Qc7-/+ (17...Qb4?! 18.Nd3 Qb5 19.a4+=)) 16.Ne4=+ Qd1?? (better 16...fe4 17.Rd6 ef3 18.Bf3 Bf3 19.Qf3 Bd6=) 17.Rd1 (better 17.Nf6 Nf6 18.Qd1+-) 17...Be4 18.Nd4 (18.b5 Rc2 19.Rd2 Rd2 20.Nd2 Bg2 21.Kg2 Nc5+-) 18...Bb4 19.Ne6?? (better 19.f3 Bd5 20.Nf5+-) 19...Rfe8?? (19...Rc2 20.Qa6 Rb2 21.Be4 fe4 (21...Ne4 22.Rd7 Nc5 23.Rg7 Kh8 24.Rh7 Kg8 25.Rg7 Kh8 26.Qa7 Ne6 27.Rg6+-) 22.Nf8 A) 22...Nf8? 23.Qc4 (23.Qa7?! Bc5+=) 23...Kh8 24.Qd4+-; B) worse 22...Bf8 23.Qc8 Ne5 24.Qe6 Nf7 25.Rc1+/-; C) 22...Kf8 23.Qa7 Ke7=) 20.Bf6?? (better 20.Ng7 Kg7 21.Rd7 Kg6 22.Be4 Re4 23.Bf6 Kf6 24.Ra7+-) 20...Nf6+/- 21.Nf4 (21.Qa6 Rc3 22.Be4 fe4 23.Qa7 Re6 24.Rd8 Bf8+-) 21...g5 (21...Bc3 22.Be4 fe4 23.f3+/-) 22.Be4 gf4 (better 22...fe4!? 23.Nd5 Bc3+-) 23.Bf5+- Rc7 (23...fe3 24.fe3 Rc3+-) 24.gf4 Bc5 25.Qc4 (25.e4 h5+-) 25...Kh8 (25...Kf8 26.Kg2+-) 26.Qb3 (26.Qc3 Rf7+-) 26...Rg7 (26...Kg7 27.Qd3+-) 27.Kf1 Reg8 (27...Rge7 28.Qc3 Rf8 29.e4+-) 28.Ke2 Nh5 29.Be4 (29.Kf3 Rf8 30.Qe6 Rgf7 31.Qe5 Ng7+-) 29...Nf6 30.Bf3 h5 31.Qc3 h4 (31...Rf8 32.Qe5+-) 32.Rd5 (better 32.Qf6 Be7 33.Qe5+-) 32...Nd5 33.Bd5 Re8 (33...Rd8 34.e4+-) 34.Bc6 (34.f5 Rf8 35.f6 Rg6 36.f7 Kh7+-) 34...Ree7 (34...Re6 35.Bf3+-) 35.Bf3 (35.f5 Ref7 36.f6 Rg6+-) 35...Kg8 (35...Re8 36.Qf6+-) 36.Qf6 h3 (36...Re8 37.Qh6 Rd8 38.Bd5 Rd5 39.Qe6 Rf7 40.Qd5+-) 37.Qh4 (37.Bd5 Rgf7+-) 37...Rgf7 (37...Rg1 38.Bd5 Kg7 39.f5+-) 38.Bh5 (38.Bd5 a5+-) 38...Kf8 (38...Rg7 39.Qh3 Rg1 40.f5+-) 39.Qg4 (better 39.Bf7 Rf7 40.Qh3+-) 39...Rg7 (39...Rf6+-) 40.Qf5 (40.Qc8 Re8 41.Qe8) 40...Kg8+- 41.Qd5 (better 41.Bg6 Rg6 42.Qg6 Kf8 43.Qh6 Kf7 44.Qh3+-) 41...Kh8 42.Qf5 Rd7?? (42...Kg8 43.Bg6 Rg6 44.Qg6 Kf8 45.Qh6 Kf7 46.Qh3 Kf6+-) 43.Qh3 (better 43.Bg6+-) 43...Rgf7 (43...Rh7+-) 44.Bf7 Kg7 45.Qg4 (45.Qd7 a5 46.Bd5 Kg6 47.Qf7 Kh6 48.Be4 Be3 49.Qg6) 45...Kf7+- 46.Qf5 (better 46.Qd7 Kf8 47.f5+-) 46...Ke7 47.Qe5 (47.Qe5 Kf7 48.e4+-) 1-0. jolubolu (1620) - aljosa1973_ (1615), Rated Bullet game, lichess.org, 2014.

6.e3 Qb6 7.b5 Be6 8.Nc3 Nbd7 9.Nf3.

6.e3 Nc6 7.b5 Nb4 (7...Na5 8.Nc3 Be7 9.Nf3) 8.a3 (8.Qb3 a5 9.Nc3) 8...Nbd5 9.Bc4 (9.Nf3=) 9...Be6 10.d3 Be7 11.e4? (11.Nf3 Rc8=) 11...Nf4 (better 11...fe4!? 12.de4 Ne4–+) 12.Be6 Ne6 13.ef5 Nd4 (better 13...Nf4!? 14.g3 N4d5=) 14.Bd4+– ed4 15.Qa4 0-0 16.Qd4 Qd7 17.Qc4 Kh8 18.Nf3 Rac8 19.Qe6?? (better 19.Qf4 Qb5 20.Nbd2=+) 19...Qe6 (better 19...Rc1!? 20.Ke2 Rh1 21.Qd7 Nd7 22.d4–+) 20.fe6 Rc1 21.Kd2 Rh1 22.Ng5 (22.b6–+) 22...Ng4 23.Nf7 Kg8 24.f3 Bf6 25.Ra2 Rb1 (better 25...Nh2 26.Nd6 Rb1 27.Kc2–+) 26.fg4 Rb2 (better 26...Re8!? 27.Nd6 Re6 28.Ne4–+) 27.Rb2 Bb2 28.Nd6 Bf6 (better 28...Ba3!? 29.e7 Bd6 30.ef8R Kf8–+) 29.Nb7 Rb8 30.Nd6 Kf8 31.g3 Ke7 32.Ne4 Ke6 33.a4 Rd8 34.g5 Bd4 35.a5? (35.h4 a6 36.ba6 Ra8–+) 35...Kf5 (better 35...Rb8!? 36.b6 ab6 37.ab6 Rb6 38.h3–+) 36.h3 Re8?? (better 36...Rb8–+) 37.Nd6+– Kg5? (better 37...Ke6 38.Ne8 Kd7+–) 38.Ne8+– Be5 39.b6 a6 (39...ab6 40.a6 Bb8+–) 40.b7 (40.Nc7 Bg3 41.Na6 Bd6+–) 40...Bb8?? (better 40...Kg6+–) 41.Ng7 Bg3 42.Ne6 Kh4 43.d4 Kh3 44.Ng5 Kg4 45.Nh7 Kf5 46.Kd3 Ke6 47.Ng5 Kd7 48.Ne4 Bc7 (48...Bh2+–) 49.Nc5 Kc6 50.Kc4 (better 50.Na6 Bg3 51.Nc5 Bb8+–) 50...Bd6 51.d5 Kc7 52.Ne4 (52.Na6!? Kb7 53.Nc5 Ka7+–) 52...Be5 53.Nc5 (better 53.d6 Kb7 54.Kd5 Bf4+–) 53...Bh2?? (53...Bd6 54.Na6 Kb7 55.Nc5 Ka7+–) 54.Na6+– Kb7 55.Kb5 Bd6 56.Nc5 Ka7 57.Kc6 Bh2 58.a6 Bg3 59.d6 Bd6 60.Kd6 Kb6 61.Kd5 Ka7 62.Kc6 Ka8 63.Kb6 Kb8 64.Na4 Ka8 65.Ka5 Ka7 66.Nb6 (66.Nc3 Ka8+–) 66...Kb8 67.Nd7 Ka7 68.Kb5 (68.Nf6!? Ka8+–) 68...Ka8 69.Nc5 Ka7 70.Kc6 (better 70.Ne6 Kb8+–) 70...Kb8?? (70...Ka8 71.Ne6 Ka7+–) 71.Kb6 Ka8 72.Ne6 Kb8 73.Nc7 Kc8 74.a7 (74.a7 Kd8 75.a8Q Ke7 76.Qf3 Kd6 77.Qf6 Kd7 78.Qe6 Kd8 79.Qe8) 1–0. ZeitNot2002 (1755) – Kwaichesscaine, Dos Hermanas Internet Section, 2003.

6.Nf3 Nc6 7.b5 Ne7 8.d4 (8.Nc3=) 8...Ng6 (better 8...e4!? 9.Ng5 Qa5 10.Nc3 Ned5-/+) 9.de5+= de5 10.Qd8 Kd8 11.Ne5 Ne5 (11...Bb4 12.Nd2 Ne5 13.Be5=) 12.Be5 Bb4 13.Nc3 Nd5?? (13...Bd7!? 14.a3 Ba5 15.Bf6 gf6=+) 14.Rd1 (better 14.0-0-0 Bc3 15.Rd5 Ke7 16.Bc3+-) 14...Be6+/- 15.Rd5?? (15.a3 Ba5 16.e4 (worse 16.Rd5 Bd5 17.Kd2 Rg8-/+) 16...fe4 17.Bc4+/- (worse 17.Bg7 Ke7 18.Rd5 Bd5=+)) 15...Bd5=+ 16.e4 (16.a3!? Bc3 17.Bc3=+) 16...Bc3 17.Bc3 Be4 (17...Re8 18.e5 Ba2 19.Bd3-/+) 18.f3 (18.Bg7 Rg8 19.Bf6 Kd7=+) 18...Bd5 19.Bd3 Be6 (19...Rf8 20.Bg7 Rf7 21.Bd4-/+) 20.0-0 (20.Bg7 Rg8 21.Bf6 Ke8=+) 20...Ke7-/+ (20...Ba2?! 21.Bf5 Bc4 22.Rb1=) 21.Re1 (21.Bg7!? Rhd8 22.Bb1-/+) 21...Kf7-+ 22.a4 Rhe8 23.a5 Rac8 24.Bb2 (24.Be5 Red8 25.Re3 Rc5-+) 24...Rcd8 (24...Red8 25.Bf1-+) 25.Bc2 (better 25.Be2-+) 25...Rd2 26.Rc1 Rc8 27.Ba4 (27.Bb3 Rc1 28.Bc1-+) 27...Rc1 (better 27...Rb2!? 28.Rc8 Bc8 29.h3-+) 28.Bc1 Rd4 29.Bc2 Rc4 30.Bb3 (30.Be3 Rc2 31.Ba7-+) 30...Rc1 31.Kf2 Bb3 32.Kg3 (32.b6 Ra1 33.ba7 Ra5-+) 32...Ra1 33.Kf4 Ra5 34.Kf5 Rb5 35.Kf4 Bd5 (better 35...a5 36.h4-+) 36.Kg3 Bf3! 37.Kf2 (37.gf3 a5 Passed pawn; 37.Kf3 Rb3 Combination) 37...a5 38.Kf3 a4 39.Kg3 a3 40.Kg4 a2 41.Kf4 (41.h3 a1Q 42.h4 Qc3 43.g3 Qf6 44.Kh3 Qf1 45.Kg4 h5) 41...a1Q 42.Ke3 (42.Kg4 Qd4 43.Kh3 Qe3 44.g3 Qf3 45.Kh4 Rh5) 42...Qa4 (42...Qc3 43.Kf2 Rb2 44.Kf1 Qc1) 43.Kd3 Rb3 44.Ke2 Qa2 (44...Qa2 45.Kd1 Rb1) 0-1. amnezia (1825) - YouSureAboutThis (1735), Rated Bullet game, lichess.org, 2014.

5.Nd2 c5 6.e3 (6.Qb3 Nc6 7.Ngf3 Nf6 8.g3 Be7 9.Bg2 0-0; 6.Ngf3 Nf6 7.g3 Nc6 8.Qb3 Be7 9.Bg2 0-0) 6...Qe7 7.Qh5 g6 8.Qe2 Nc6 9.ed4 Bg7.

5.Qd4 Nc6 6.Qd1 Nb4 7.e3 Nf6 8.Nf3 Be7 9.Be2 0-0 10.0-0 Kh8 (10...Ne4 11.Nbd2-/+) 11.Nc3=+ a5 12.a3 Nc6 13.Nd5 Nd5 (13...Ne4 14.Rb1=+) 14.cd5= Nb8 15.Nd4 Bf6 16.Rb1 c5 (16...Na6 17.Ba6 Ra6 18.Qc2=) 17.Nb5 Qe7 18.a4 Nd7 (18...f4 19.Bf6 Rf6 20.ef4 Rf4 21.Re1=) 19.Bf6 (19.Qd2 Bb2 20.Rb2 Nf6=+) 19...Nf6=+ 20.Bf3 Ne4 21.Qc2 Ng5 22.Qe2 Nf3 23.Qf3 Bd7 24.Qf4 1-0. hurvajsmanka (1720) - duzi1964 (1705), Rated Blitz tournament, lichess.org, 2013.

5.Bd4 c5 6.bc5 dc5 7.Bc3 Qd1 8.Kd1 Nc6 9.Nd2 Nf6.

5.e3 de3 6.Nf3 ef2 7.Kf2 Nf6 8.Bd3 Be7 9.Re1 Ne4 10.Be4 fe4–/+ 11.Re4 0-0 12.Qd5 Kh8 13.Nbd2 c6 14.Qh5 Rf5 (14...Rf5 15.Qh6 Bf6 16.Bf6 Rf6=+ (< 16...gf6 17.Rae1 Re5 18.Ne5 fe5 19.Kg1+–); 14...d5 15.Qh6 Qb6 16.Ke1=+). Roscher – Hoffmann, corr SOK–89–36, 1989.

5.Nf3 c5 6.Nbd2 Nf6 7.g3 Nc6 8.Bg2 Be7 9.0-0 0-0.

5.Nf3 Nf6 6.Nd4 c5 7.bc5 dc5 8.Nb5 a6 9.Qd8 Kd8.

6.Bb2 Nb4–/+ 7.e3 Nf6 8.Qa4 Nc6 9.Nf3 Bd7 10.Qb3 g6 11.Nc3 Bg7 12.Rd1 Na5 13.Qc2 f4 14.Bd3 fe3 15.fe3 Qe7 16.Nd5? Nd5–+ 17.Bg7 Ne3 18.Bg6 Kd8 19.Qc3 Nd5 (19...Nd5 20.Qe5 de5 (20...Qe5?! 21.Ne5 Rg8 22.Rd5 Rg7 23.Be4–/+) 21.Bh8 Ne3–+; 19...hg6 20.Bf6 Re8 21.Be7 Re7 22.Kf2 Nd1 23.Rd1+–) 0–1. Old Beal – bridlingtonbrummie, ChessWorld.net, 2009.

6.Bc3 Nf6 7.e3 Be7 8.Nd2 0-0 9.Ngf3 h6 (9...Ng4!?=) 10.Be2 a5 11.b5 Na7 12.0-0 b6 13.Nb3 (13.Nd4 Qe8+/-) 13...Bd7 (13...Bb7 14.Nfd4 Ne4 15.Bb2+=) 14.Nfd4 (14.Bd3 Qe8+/-) 14...Ne4+= 15.Bb2 Rc8 16.Rc1 c6 17.a4 cb5 (17...Bf6 18.Rb1+=) 18.cb5+/- Bf6 19.Ba3 (19.Rc8 Qc8 20.Qd3 Qe8+/-) 19...Nc5 (19...Rc1 20.Nc1 Qe7 21.Bc4 Kh7 22.Qd3+=) 20.Nd2 Qe7 (20...f4 21.Nc4 fe3 22.Nd6 ef2 23.Rf2+-) 21.Nc4 Rb8 22.Bf3 Na4?? (better 22...Kh8+/-) 23.Qa4 (23.Bd5!? Kh7 24.Bd6 Qd8 25.Bb8 Nb5+-) 23...Bd4 24.ed4 (better 24.Bd6 Qf7 25.Bb8 (worse 25.ed4 Bb5 26.Qb3 Rbc8 27.Bf8 Bc4 28.Qb6 Bf1 29.Rc8 Nc8+-) 25...Bb5 26.Qa2 Be3 27.Ba7 Bc1 28.Rc1 Qa7 29.Nd6 Kh7 30.Nb5+-) 24...Bb5 25.Qc2 Rbc8 26.Be2 (26.Bd6 Qe6 27.Rfe1 Qc4 28.Qc4 Bc4 (28...Rc4?? 29.Bd5 Kh8 30.Bc4+-) 29.Rc4 Rc4 30.Bd5 Kh7 31.Bc4 Rd8+-) 26...d5?? (better 26...Rfe8 27.Bd3 Qf7+-) 27.Be7 (27.Be7 Rfe8 28.Qf5 dc4 29.Qe5+-) 1-0. dannysmet (2010) - obethekenneth (2045), Rated Blitz game, lichess.org, 2021.

6.Bc3=+ Nf6 7.Nf3 Ne4 8.b5 Ne5 9.Ne5 de5.

6.Bc3 Nf6 7.Nf3 Be7 8.b5 (8.e3 Ne5 (8...a6 9.b5 ab5 10.cb5 Na5 11.Nbd2 0-0 12.Bd3 d5; 8...0-0 9.b5 Nb8 10.Bd3 Qe8 11.0-0 Qg6 12.Bd4 Be6; 8...Qd7 9.Nbd2 Qe6 10.Be2 0-0 11.Ng5 Qd7 12.0-0 Qe8) 9.Ne5 (9.Nbd2 Nfd7 10.Nd4 Nf6 11.Be2 c5 12.bc5 dc5) 9...de5 10.Qd8 Kd8 11.Nd2 e4 12.Rd1 Bd7) 8...Nb8 9.g3 (9.e3 Nbd7= 10.Be2 Ne4 11.0-0 Bf6 12.Bd4 0-0) 9...0-0 (9...Nbd7 10.Bg2 0-0 11.0-0 Nc5 12.Bd4 Nfe4) 10.Bg2 Ne4 (10...d5 11.Qd3= (11.Nd4 Kh8 12.Qb3 dc4) 11...Nbd7 12.Ne5 Nb6; 10...Nbd7 11.0-0 Ne4 12.Bd4 Bf6) 11.0-0 (11.Qd5 Kh8= 12.Nd4 Nc3) 11...Nc3 (11...Be6 12.Qd3 Nc5 13.Qc2=) 12.Nc3 Nd7 13.Nd5 (13.Nd4 Nc5+=) 13...Nc5+= 14.a4 (14.Nd4 Bf6=) 14...Bf6= 15.Ra3 a6 16.Nd4 (16.a5 ab5 17.cb5 Bb2=) 16...ab5 (16...Be5 17.a5=) 17.cb5 Bd7 18.Nf6 Qf6 19.a5 Ra7 20.e3 Ne4 (20...Qe5 21.Qe2+=) 21.Qc2 Rc8 (21...Nc5 22.Rb1+=) 22.Be4 fe4 23.Qe4 c5? (23...c5 24.b6 cd4 25.ba7 Bc6+-; better 23...c6 24.bc6 bc6 25.Rb1+-) 24.b6+- cd4 25.ba7 Bc6 26.Qd4?? (better 26.Qg4 Ra8 27.ed4+- (27.Qd4? Qf3 28.Qc4 Kh8-+)) 26...Qf3=+ 27.Qc4 Kh8 28.e4 Qa3 29.Qe6? (29.a6 h5 30.Rb1 Qa6 31.Qa6 ba6 32.Rc1+=) 29...Ra8-+ 30.Rd1 The isolani on d6 becomes a target (30.Qf5 Qb4-+) 30...Qa5 31.Qd6 Rg8 (31...Qa7 32.Qd8 Be8 33.Qe7-+) 32.Qb8 (better 32.Qd4!? b6 33.Ra1-/+) 32...Be4-+ 33.h4 b5 34.Qe5 Ba8 35.Ra1 Qb6 36.h5 (36.Qe3 Qc6 37.f3-+) 36...Qc6 37.Kf1 Re8 (37...Re8 38.Qe8 Qe8-+) 0-1. Martinez,Ezequiel - Menendez Solar,Jose C, Spain Primera B ONCE-Puen, 1998.

6.Nc3 Nf6 7.Bf6 gf6 8.e3 Bg7 9.Qh5 Kf8.

6.b5 Nbd7 7.Nf3 Be7 8.Nc3 0-0 9.g3 Nc5 10.Bh3.

6.b5 Be7 7.Nf3 0-0 8.Nc3 c5 9.Bf6 Bf6 10.Qd5.

6.Nc3 c6 7.Nf3 h6 (7...d5 8.Qb3=) 8.e3+= Be6 9.Be2 Nbd7 10.0-0? Be7 11.a3 0-0? 12.Qc2 Qe8 13.Rfd1 Qf7 14.Nb1 White intends c5 14...d5 (14...c5 15.Bb2+=) 15.c5 Ne4 16.Nbd2 Ndf6 (16...Qg6 17.Bd3+=) 17.Nf1 (17.Ne5!? Qe8 18.Nb3+=) 17...Ng4= 18.Ne5 Ne5 19.Be5 Bg5 20.Bf3 Bf6 21.Bf6 Qf6 22.Rd4 Ng5 23.Qe2 (23.Qd1 Qe5=) 23...Ne4 (23...f4 24.Bh5=+) 24.Rc1= f4 (24...Rae8!?=) 25.Be4+/- de4 26.Re4 f3 27.Qd1?? (better 27.gf3 Bd5 28.Rf4+=) 27...fg2-+ 28.Ng3 (28.Qe2 gf1N 29.Kf1-+) 28…Qf2 0-1. Nf3 (2015) - Vadim1963 (1765), Rated Classical game, lichess.org, 2013.

6.Nc3 Be6 7.Bf6 Qf6 8.Rc1=+.

6.Nd2 Nc6 7.Bc3=+ (7.Ngf3 Nd4 8.Nd4 c5 9.Nb5 Be7 10.bc5) 7...d5 8.a3 dc4 9.Nc4 Ne4 10.Qd8.

6.Nd2 Be7 7.e3 (7.Ngf3 0-0 8.b5 Nbd7 9.e3 Nc5 10.Be2) 7...0-0 (7...c5 8.Bc3= (8.bc5 dc5 9.Bc3 Nc6 10.Ngf3) 8...cb4 9.Bb4 Nc6 10.Bc3; 7...Nc6 8.Ngf3 Nb4 9.Bc3 a5 10.a3) 8.Ne2 (8.b5 c5 9.Bc3 d5 (9...f4 10.ef4) A) 10.cd5 Nd5= (10...Qd5?? 11.Bc4+-); B) 10.Ngf3=+) 8...Nc6 9.Bc3 (9.b5 Nd4 10.Nd4) 9...Qe8 (9...Ng4 10.h3-/+ (10.Nf3=); 9...Re8 10.Nf4) 10.Nf4 Ne5 (10...a5 11.b5 Ne5 12.Be2=) 11.Qb3 (11.Be2 Ng6=) 11...Qf7 (11...Ng6 12.Nd5 Nd5 13.cd5=) 12.Be2 (12.c5 Qb3 13.Nb3 Ne4 14.Be5 de5 15.Bc4 Kh8+=) 12...Ne4 Black is in command 13.Nf3? (better 13.Ne4 fe4 14.c5=) 13...Nc3-/+ 14.Qc3 Bf6 15.Qc1 g5 16.Ne5 (16.Nh3 Nf3 17.Bf3 Be6 (17...Ba1 18.Bd5 Be6 19.Ng5=) 18.Bb7 A) 18...Ba1 19.Ng5 (19.Ba8?! Bf6 20.Bd5 Bd5 21.cd5 Qd5=) 19...Qf6 20.Ne6+-; B) 18...Rab8-+) 16...Be5 (16...de5?! 17.Bh5 Qg7 18.Nd5=) 17.Nh3 (17.Nh5 Ba1 18.Qa1 f4-+) 17...Ba1 (17...f4 18.0-0 Bh3 19.gh3-+) 18.Qa1 h6 19.f4 (19.Qc3 Qg7 20.Qg7 Kg7-+) 19...g4 20.Nf2 Qg7 (20...Re8 21.Qd4-+) 21.Kd2 (21.Qg7 Kg7 22.Bd3 Bd7-+) 21...Bd7 (21...Qe7 22.Qd4-+) 22.Qg7 Kg7 23.g3 (23.Rd1 Rae8-+) 23...Rae8 (23...Bc6 24.Re1-+) 24.h3 h5 25.b5 (25.hg4 hg4 26.Rh5 Rh8 27.Rh8 Rh8-+) 25...Rh8 26.h4 (26.Bd3 Be6-+) 26...Re7 27.Bd3 Rhe8 (27...a6 28.ba6 ba6 29.Re1-+) 28.Re1 c6 (28...Kf8 29.e4-+) 29.a4 (29.e4 cb5 30.cb5 a6-+) 29...d5 30.c5 (30.cd5 cd5 31.Nd1 Be6-+) 30...Kf6 31.Re2 (31.b6 ab6 32.cb6 c5-+) 31...b6 (31...Rc8 32.Kc3 cb5 33.ab5 Rc5 34.Kd4-+) 32.cb6 ab6 33.Nd1 d4?? (better 33...c5-+) 34.ed4=+ Re2 35.Be2 Re4 (35...cb5 36.Bb5 Bb5 37.ab5-/+) 36.Kd3? (36.Kd3 cb5 37.Nc3 ba4 38.Ne4 fe4 39.Ke4-+; better 36.bc6!? Bc6 37.Kd3=+). Roczniak,Jan - Paradysz,J, Poland (year?).

6.e3 c5 7.bc5 dc5 8.Bc3 Qd1 9.Kd1 Ne4 10.Nh3.

6.e3 Nc6=+ 7.Nf3 Nb4 8.a3 Nc6 9.Bd3 Be7 10.Nc3.

5.Nc3 Be7 6.Nh3 (6.b5 Nf6 7.Nh3 a6 8.Nf4 0-0 9.Qb3 c6) 6...Nf6 7.Nf4 0-0 8.b5 a6 9.Qb3 c6.

5.Nc3 Nf6 6.Nh3 Be7 7.Nf4 0-0 8.b5 a6 9.Qb3 c6.

5.Nc3 Qg5 6.Nh3+= Qh5 7.Nf4 Qg5 8.Nfd5 Qd8 9.Nb5 Na6= 10.Nbc3 c6 11.Nf4 Nb4=+ 12.e3 Be7 13.Qh5 Kf8=+ 14.Ng6 hg6 15.Qh8 Nc2 16.Kd2 Na1 17.d5 Bf6 18.Be2 cd5 19.Ra1 Qa5 20.cd5–/+ b6 (20...b6 21.Rc1 Bb7–+) 0–1. jperr75108 – euforia (1635), internet, 2007.

5.d5= a5 6.ba5 Nf6 7.Nh3 Nbd7 8.Nf4 Nc5 9.Nd2 Be7.

5.d5= Nd7 6.e3 (6.Nh3 Ngf6 7.Nf4 Ne5 8.Nd2 Qe7 9.e3 Bd7; 6.Nd2 Ne5 7.Qb3 a5 8.Nh3 ab4 9.Nf4 Nf6) 6...Ngf6 (6...a5 7.Nh3 Ngf6 8.Nf4 Ne5 9.ba5 e7) 7.h3 (7.Ne2 Be7= (7...a5 8.Nd4 Ne5 9.b5 Nfg4) 8.Nd4 Ne5 9.Nc3 0-0; 7.Nh3 Ne5 8.Nc3 Be7 9.Ng5 0-0) 7...Ne5 (7...a5 8.a3 Ne5 9.Be2 Bd7) 8.Be2 (8.f4 Ng6 9.Nc3 a5) 8...Be7 (8...a5 9.a3 Bd7) 9.Nd2 (9.f4 Ng6=+) 9...0-0 10.f4 (10.Nb3 c6=+) 10...Nd3 11.Bd3 ed3 12.Ngf3 Ne4 (12...a5 13.b5=) 13.0-0 Ng3 14.Re1 Ne2 (14...a5 15.ba5 Ne4 16.Qb1+=) 15.Kh2 Bf6 16.Qb3 (16.Bf6 Qf6 (worse 16...Rf6 17.Qb3 Rg6 18.Qd3+–) 17.Qb3 Qc3+=) 16...Bb2 17.Qb2 Qf6 (17...Qe8 18.Nf1 b5 19.Qb3 bc4 20.Qc4=) 18.Nd4 (better 18.Qf6!? Rf6 19.a4+–) 18...Re8= 19.Nf1 (19.N2b3 Re3 20.Qd2 Re4 21.Ne2 de2 22.Re2 Bd7=) 19...Bd7 (19...a5 20.b5=+) 20.Rab1 (20.Red1!?=) 20...Nd4=+ 21.Qd4 Qd4 22.ed4 Re4 23.Re4 fe4 24.Re1 Re8 25.b5 (25.Re3 h5=) 25...c6 26.dc6 bc6 27.bc6 Bc6 28.d5 Bd7 29.g4 (29.Re3 h5=) e3=+ (29...e3 30.Re3 Re3 31.Ne3 d2=+). Roczniak,Jan – Moscicki,Z, Poland (year?).

5.e3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.d4 e4).

5.Nh3 A) 5...Be7 6.Nf4 (6.b5 Nf6 7.Nc3 a6 8.Nf4 0-0 9.Qb3 c6) 6...Nf6 7.Nc3 0-0 8.b5 a6 9.Qb3 c6; B) 5...Nf6 6.Nc3 Be7 7.b5 0-0 8.Nf4 c6 9.e3 g5.

6.Qc2 a5 7.e3 ab4 8.Be2 Nbd7 9.h4 c5 10.h5 Be7 11.h6 g6 12.Nh3 0-0 13.Ng5 Nb6 14.g4 Qe8 15.Nd2 Na4 16.gf5 Bf5 17.Ne6 Be6 18.de6 b6 19.Ne4 Ne4 20.Bg7 Nf6 21.Rg1 Nc3 22.Bf3 Rd8 23.Bf8 Bf8 24.Bd5 Bh6 25.e7 Ncd5 26.ed8Q Qd8 27.cd5 Bg7 28.0-0-0 b5 29.Rg6 hg6 30.Qg6 Qe8 31.Qg5 Qe5 32.Qe5 de5 33.d6 Nd7 34.Rd5 Kf7 35.f4 ef4 36.ef4 Ke6 37.Rg5 Bf6 38.Rg6 c4 39.Kc2 Nc5 40.Rg8 Kd6 41.Rf8 Be7 42.Rf5 b3 43.ab3 Nb3 44.Rb5 Nd4 45.Kc3 Nb5 46.Kc4 Nc7 47.Kd3 Kd5 48.Ke3 Bf6 49.f5 Ke5 50.Kd3 Nd5 51.Kc4 Ne3 52.Kc5 Nf5 53.Kc4 Kd6 54.Kd3 Kd5 55.Ke2 Ke4 56.Kd2 Nd4 57.Kc3 Be7 58.Kc4 Ke5 59.Kc3 Kd5 60.Kd3 Bg5 61.Kc3 Kc5 62.Kd3 Kd5 63.Kc3 Nc6 64.Kd3 Na5 65.Kc3 Nc4 66.Kd3 Bh6 67.Kc3 Kc5 68.Kd3 Nd6 69.Kc3 Nb5 70.Kd3 Kd5 71.Kc2 Kc4 72.Kd1 Kd3 73.Ke1 Be3 74.Kf1 Ke4 75.Ke2 Nd4 76.Kd1 Bf2 77.Kd2 Bh4 78.Kc3 Kd5 79.Kd3 Bg3 80.Ke3 Be5 81.Kd3 Ne6 82.Ke3 Ng5 83.Kd3 Bf4 84.Kc3 Kc5 85.Kd3 Kd5 86.Ke2 Ke4 87.Kf2 Ne6 88.Ke2 Bg3 89.Kd2 Bf2 90.Kc3 Nf4 91.Kc4 Be3 92.Kb5 Kd5 93.Kb4 Bd4 94.Kb3 Kc5 95.Kc2 Kc4 96.Kd2 ½–½. waldi1962 – nexx1 (1710), internet, 2014.

6.e3 Be7 7.Nc3 0-0 8.Be2 c6 9.f3 Nbd7 10.Nh3 Ne5 11.Nf4 Qb6–/+ 12.a3? Qe3 13.fe4? Ne4 14.Ne4 fe4 15.Be5 de5 16.Nh3 Bh3 17.gh3 Bh4 0–1. wlittle (2175) – hobgoblin (2070), net–chess.com, 2005.

5.Qb3 Nf6 6.Nf3 Ne7 (6...e4 7.Nd4=) 7.a4 (7.Be2 e4 8.Nd4 a5=) 7...c6 (7...Nc6 8.Be2=) 8.d4 e4 9.Nfd2 d5 10.Nc3 Be6 11.Be2 (11.c5 Ng6=) 11...g6 (11...dc4 12.Nc4 f4 13.b5=) 12.g3 (12.b5 dc4 13.Nc4 Rc8+=) 12...Bg7 (12...dc4 13.Nc4 Ned5 14.b5=) 13.0-0= h5 14.b5 (14.h4 dc4 15.Nc4 0-0=) 14...h4=+ 15.Ba3 hg3 16.hg3 Ng4 (16...Qd7!?=+) 17.Kg2 (17.bc6 bc6 18.Bg4 fg4 19.cd5 cd5 20.Nce4 Rb8 21.Nd6 Kf8+-) 17...Rh2 (17...Bf6 18.Bg4 fg4 19.cd5 Nd5 20.Kg1+=) 18.Kg1+= Kf7 19.Bg4?? (19.Be7 Qe7 20.cd5+/-) 19...Qh8-+ 20.Bf3 (20.f4 Rh1 21.Kf2 Qh2 22.Ke1 Qg3 23.Kd1 Rf1 24.Nf1 Qg4 25.Ke1 dc4 26.Qb2 Qh4 27.Ke2-+) 20...ef3 21.Nf3 Rh1 22.Kg2 Qh3 0-1. ClayPigeons (2030) - sesilu29 (2045), Rated Bullet game, lichess.org, 2020.

5.b5 Na5 6.Bc3 b6 7.Ba5 ba5 8.a4 Bb7 9.Nf3 Ne7 10.Be2 g6 11.d3 Bg7 12.Nc3 e4 (12...Bf3!? 13.gf3 a6+=) 13.Nd4+= 0-0 14.Rc1 ed3 15.Qd3 Bg2 16.Rg1 Bb7 (16...Bd4!? 17.Qd4 c5 18.bc6 Bc6+=) 17.Ne6+/– Qd7 18.Nf8 Rf8 19.Nd5 Be5 20.h3 Bd5 (20...a6!?+/–) 21.cd5+– Bb2 22.Rc2 Be5 23.Qc4 Rc8 24.h4 h5? (24...Kf8+–) 25.Bh5 Bh2 (25...Kf7 26.Bf3+–) 26.Rg2 Be5 27.Bg6 Ng6 28.Rg6 Kf7 29.Re6 Rh8 (29...Kf8+–) 30.Qc7 Qc7 (30...Rd8 31.f4 Ba1 32.Rd6 Qc7 33.Rc7 Ke8 34.Rd8 Kd8 35.Ra7+–) 31.Rc7 Kf8 32.Ra7 (32.Re5 de5 33.Rc8 Ke7 34.Rh8 f4 35.ef4 ef4+–) 32...Rh4 33.Ke2 (33.b6 Ra4 34.Ree7 Bc3 35.Kf1 Bf6 36.Rf7 Kg8 37.Rfb7 Ra1 38.Kg2 Rg1 39.Kg1 Bg7 40.Rg7 Kf8 41.Rgc7 a4 42.Rc8) 33...Ra4 34.Ra8 Kf7 35.Ree8 (better is 35.b6 Ra2 36.Kf3 Rb2 37.Ra7 Kf8+–) 35...Ra2 36.Kf3 Rb2 37.Rf8 Kg7 38.Rg8 Kh7 39.Rgb8 Rd2 (39...Bc3 40.b6 Be1 41.b7 Rf2 42.Kg3 Rf1 43.Kg2 Rf2 44.Kg1+–) 40.Ra5 (40.Ra7!? Kh6 41.b6 Bf6+–) 40...Rd5 41.Ra7 (41.Ra7 Kg6 42.b6+–) 1–0. ourang – vasilea, internet, 2013.

6.d4 e4 7.d5 Nf6 8.Nh3 Ng6 9.Be2 Be7 10.Nf4 Nf4 11.ef4 0-0 12.0-0 c6 13.a4 a6 14.dc6 bc6 15.bc6 Qb6 16.Bf6 Bf6 17.Qd5 White intends a5 17...Kh8 18.Ra2 (worse is 18.Qd6 Rd8 19.Qa3 Ba1 20.Qa1 Qc6–/+) 18...Rd8?? (18...Re8 19.a5 Qc7 20.Rd1=) 19.a5 (better is 19.c7 Rg8 20.Qa8+–) 19...Qb3? (19...Qc7 20.Na3+=) 20.Rd2 (better is 20.Ra3 Qc2 21.c7+–) 20...Ra7+/– 21.Bd1?? (better is 21.c5 Qd5 22.Rd5 dc5 23.Nc3+=) 21...Qb1–+ 22.c5 h6?? (22...Qb4 23.cd6 Rc7 24.dc7 Rd5 25.Rd5 Qf8+/–) 23.cd6?? (better is 23.Bb3 Qf1 24.Kf1+–) 23...Qb4+= 24.d7? (better is 24.Be2!?+=) 24...Bd7–+ 25.cd7 Rad7 26.Qd7 Rd7 27.Rd7 Qa5 28.Bh5 Kh7 29.Rfd1 Qb6 30.g4 fg4 31.Bg4 h5 32.Bh5 a5 33.Bg4 a4 34.Bf5 Kh6 35.Be4 a3 36.Bb1 a2?? 37.Ba2+– Qb2 38.Bb1 Qb4 39.R7d3 Qf4 40.Rh3 Kg5?? 41.Rg3 Kh4 42.Rdd3?? Qc1–+ 43.Kg2 Qb1 44.Rh3 Kg5 45.Rdf3 Kg6 46.Rhg3 Kf7 47.h4 Qe4 48.h5 Kg8 49.h6 g5 50.Kh3 Be7 51.Re3 Qf5 52.Kg2 Bd6 53.Ref3? Qd5 54.Rg4 Bf4 55.Rgg3 Bg3 56.Kg3 Kh7 57.Kg4 Kh6 58.Rh3 Kg6 59.Rf3 Qe4 60.Kg3 Qh4 61.Kg2 g4 62.Rg3 Kf5 63.Kf1 Kf4 64.Kg2 Qh8 65.Kg1 Qa8 66.Kh2 Qa2 67.Kg2 Qe2 68.Kg1 Qe4 69.Re3 Qb1 70.Kg2 Qd1 71.Rg3 Qd5 72.Kg1 Qe4 73.Re3 Qe3 74.fe3 Ke3 75.Kg2 Ke4 76.Kg3 Kf5 77.Kg2 Ke4 78.Kg3 Kf5 79.Kg2 Kf4 80.Kf2 Ke4 81.Kg3 ½–½. typ48 – roninlk (1615), internet, 2013.

6.Be2 Ng6 7.Nf3 Nf6 8.0-0 Be7 9.c5 0-0 10.cd6 cd6 11.a4 Qb6 (11...f4 12.Qb3 Kh8 13.a5=) 12.Qb3+= Kh8 13.d3 f4 14.Nbd2 (better 14.e4+=) 14...e4?? (better 14...fe3 15.Nc4 ef2 16.Rf2 Qd8-/+) 15.de4 fe3 16.Qe3 Qd8 (16...Qe3 17.fe3 Ng4 18.Bd4+-) 17.Rfc1 (17.Rad1 Ng4 18.Qb3 Bf6+-) 17...Ng4 18.Qb3 N4e5 19.Rc2 Nf3 20.Nf3 (20.gf3?! Bf6+=) 20...Ne5 (20...Nf4 21.Nd4+-) 21.Rac1 (21.Ne5 de5 22.Be5 Bh4+-) 21...Bf6 22.Ne5 Be5 23.Be5 de5 24.h3 (24.Rc7 Qf6 25.Qg3 Re8+-) 24...Qh4 25.Bf3 (25.Qg3 Qg3 26.fg3 Be6+-) 25...Qg5+/- 26.Rc5 (26.Bd1 a6+/-) 26...Bh3 (better 26...b6 27.h4 Qh4+=) 27.Qd5?? (better 27.Qe3 Qe3 28.fe3+/-) 27...Rf3-+ 28.Rc8 Rc8 29.Rc8 Bc8 30.Kf1 (30.Qd6 h6 31.Qd1 Rc3-+) 30...Rf8 (better 30...Rc3 31.Qd1 Be6 32.f4 Qf4 33.Kg1-+) 31.Qc5 Qf6 (better 31...Rd8!? 32.Qc2 Be6 33.b6-+) 32.f3 Qf4 33.Qf2 (33.Kg1-+) 33...Qe4! 34.fe4 Rf2 35.Kf2 Bg4 36.Ke3 h5 37.Kd3 (37.Kd2 b6 38.Ke1 h4-+) 37...h4 38.Kc4 (38.b6 ab6 39.Ke3-+) 38...h3 (better 38...Bf3! 39.Kd3 Bg2-+) 39.gh3 Bh3 40.Kd5 Bg2 (40...b6!? 41.Ke5 Bg4 42.Kd6-+) 41.Ke5 Be4! 42.Ke4 Kh7 43.Kf4 (43.Kf5 g6 44.Kg4 Kh6-+) 43...Kh6 44.Kg4 g5 45.a5 Kg6 46.b6 Kf6 (better 46...ab6 47.ab6 Kf6-+) 47.ba7 b6 (47...Ke7 48.a8Q Kd6 49.Qb7 Ke5 50.a6 Kd4 51.Qd7 Ke4 52.a7 Ke5 53.a8Q Kf6 54.Qac6 Ke5 55.Qdd6) 48.a8Q ba5 49.Qa5 (49.Qa5 Ke7 50.Qd5 Ke8 51.Kg5 Ke7 52.Kg6 Ke8 53.Qb7 Kd8 54.Kf6 Ke8 55.Qe7; 49.Qd5 a4 50.Qd6 Kg7 51.Kg5 Kf7 52.Qd7 Kf8 53.Kf6 a3 54.Qd8) 1-0. fishissushi (1875) - simoncarc (1895), Rated Bullet game, lichess.org, 2019.

7.Nc3 a6 8.ba6 A) 8...Ra6 9.c5 Ra5 10.cd6 cd6 11.Qb3 Bd7 12.Rc1 Ned5 13.Bc4 Bc6 14.d4; B) 8...Nc6 9.ab7 (9.c5 ba6 10.cd6 cd6 11.Rb1 Rb8 12.Be2 Qa5 13.0-0 Be7 14.Bc4; 9.Be2 ba6 10.h3 Be7 11.0-0 0-0 12.Rb1 Rb8 13.Ba3 Rb1 14.Qb1) 9...Bb7 10.c5 Qd7 11.cd6 Bd6 12.Nb5 e4 13.Nd6 cd6 14.Nd4; C) 8...ba6 9.d3= (9.Rb1 e4 10.Nd4 c5 11.Nb3 Be6 12.Be2 Nc6 13.0-0 Be7 14.Nd5; 9.Be2 e4 10.Nd4 Rb8 11.Rb1 c5 12.Nb3 Nc6 13.0-0 Be7 14.d4) 9...Nc6 10.Rb1 Be7 11.Be2 0-0 12.0-0 Rb8 13.Nd5 Bb7 14.Qa4.

7.Nc3 a6 8.Qb3 Ne4 9.Be2 Nc5 10.Qb4 Ng6 11.0-0 ab5 12.cb5 d5 13.d4 Nd3 14.Qb3.

7.Nc3 c6 A) 8.Qc2 e4 (8...a6 9.ba6 Ra6 10.Be2 e4 11.Nd4 Kf7 12.0-0 c5 13.Ndb5 d5 14.d4) 9.Nd4 (9.Ng5 h6 10.Nh3 Ng6 11.d3 cb5 12.Nb5 a6 13.Nc3 Qa5 14.Qd2) 9...c5 10.Nb3 Ng6 11.d3 ed3 12.Bd3 Ne5 13.0-0 Be7 14.Be2; B) 8.Qa4 e4 9.Nd4 (9.Ng5 Bd7 10.Be2 h6 11.Nh3 Ng6 12.f3 Be7 13.0-0 ef3 14.Rf3) 9...c5 10.Nde2 Bd7 11.Nf4 g5 12.Nh3 Rg8 13.Be2 Kf7 14.Qc2; C) 8.Be2 C1) 8...e4 9.Ng5 (9.Nd4 c5 10.Nb3 Ng6 11.0-0 Be7 12.d3 ed3 13.Qd3 Ne5 14.Qc2) 9...h6 10.Nh3 Ng6 11.0-0 Be6 12.Qc2 Be7 13.d3 ed3 14.Bd3; C2) 8...g6 9.c5 (9.Qb3 Bh6 10.c5 e4 11.cd6 Qd6 12.bc6 bc6 13.Ba3 Qb8 14.Nd4) 9...Bg7 10.Qb3 Ned5 11.Qa4 0-0 12.bc6 dc5 13.Ne5 Re8 14.Nd5; C3) 8...Kf7 9.0-0 (9.Qa4 h6 10.0-0 c5 11.Nh4 g5 12.Nf3 e4 13.Ne1 g4 14.Rd1; 9.d4 e4 10.Ng5 Kg8 11.0-0 h6 12.Nh3 Ng6 13.bc6 bc6 14.Rb1; 9.c5 e4 10.Qb3 Kg6 11.cd6 ef3 12.de7 Qe7 13.Bf3 Be6 14.Qc2; 9.Qc2 h6 10.0-0 Be6 11.d4 e4 12.Nd2 cb5 13.Nb5 a6 14.Nc3; 9.bc6 Nc6 10.0-0 Be7 11.Nd5 Nd5 12.cd5 Na5 13.Qa4 Bd7 14.Qa3; 9.Qb3 h6 10.0-0 c5 11.d3 Be6 12.h3 Ng6 13.Nd5 Be7 14.a4; 9.Rb1 h6 10.0-0 c5 11.d3 Be6 12.Qb3 g6 13.Nd2 Bg7 14.Bf3) 9...h6 10.Qc2 Be6 11.h3 cb5 12.Nb5 a6 13.Nc3 Rc8 14.Rac1; C4) 8...h6 9.0-0 (9.Qa4 Kf7 10.0-0 c5 11.Nh4 g5 12.Nf3 e4 13.Ne1 g4 14.Rd1; 9.Qc2 Kf7 10.0-0 Be6 11.a4 c5 12.d4 cd4 13.ed4 Ng6 14.Rfd1; 9.Qb3 Kf7 10.0-0 c5 11.Ne1 Ng6 12.f4 e4 13.d3 Bd7 14.de4; 9.d4 e4 10.Nd2 Kf7 11.0-0 Be6 12.f3 ef3 13.Bf3 Rc8 14.bc6; 9.h3 e4 10.Nd4 c5 11.Nb3 Kf7 12.0-0 Ng6 13.f3 ef3 14.Bf3; 9.Rb1 Kf7 10.0-0 c5 11.d3 Ng6 12.Nd5 Nd5 13.cd5 Be7 14.Bc3; 9.Rc1 e4 10.Nd4 c5 11.Nb3 Be6 12.0-0 Kf7 13.d3 ed3 14.Qd3; 9.a4 Kf7 10.0-0 Be6 11.Qc2 c5 12.e4 f4 13.Nd5 Ned5 14.ed5; 9.bc6 Nc6 10.Nh4 Kf7 11.0-0 g6 12.f4 Kg7 13.Nd5 Be6 14.Qe1; 9.a3 Be6 10.0-0 Kf7 11.Qb3 c5 12.d3 Ng6 13.Nd5 Bd7 14.Nf6; 9.h4 e4 10.Nd4 c5 11.Nb3 Ng6 12.Nd5 Nd5 13.cd5 Kf7 14.h5) 9...Kf7 10.c5 e4 11.cd6 Qd6 12.Nd4 c5 13.Ba3 Ned5 14.Qb3; C5) 8...a6 9.ba6 (9.a4 e4 10.Nd4 c5 11.Nb3 Ng6 12.0-0 Be7 13.d3 ed3 14.Qd3) 9...Ra6 10.0-0 Ng6 11.c5 Ra5 12.cd6 Bd6 13.Qb3 Qe7 14.d4.

7.Nc3 Bd7 8.Be2 Ng6 9.0-0 (9.h4 e4 10.Nd4 Be7 11.h5 Ne5 12.h6 gh6 13.Rh6 Nfg4 14.Rh5; 9.Qb3 Ne4 10.0-0 Be7 11.d4 Nc3 12.Bc3 e4 13.Nd2 0-0 14.c5; 9.Qc2 Be7 10.0-0 0-0 11.Rae1 Kh8 12.a4 c5 13.bc6 bc6 14.Rb1; 9.Qa4 Be7 10.0-0 Ne4 11.Nd5 0-0 12.d3 Nf6 13.Ne7 Qe7 14.Qb3) 9...Be7 10.c5 0-0 11.cd6 cd6 12.Qb3 Kh8 13.Rac1 Rc8 14.Nd5.

7.Nc3 g6 8.Qb3 Bg7 (8...c5 9.bc6 Nc6 10.Be2 Bg7 11.0-0 Ne4 12.Qc2 Nc3 13.Bc3 0-0 14.Rab1; 8...Bh6 9.c5 Kf8 10.Be2 e4 11.cd6 Qd6 12.Nd4 Kg7 13.Ba3 Qd8 14.0-0; 8...Be6 9.d4 e4 10.d5 Bd5 11.Ng5 Bf7 12.Nce4 Ne4 13.Ne4 fe4 14.Bh8) 9.Be2 (9.c5 Ne4 10.cd6 cd6 11.Bc4 Nc5 12.Qb4 Be6 13.Ng5 Bc4 14.Qc4; 9.h3 Be6 10.Ng5 Bg8 11.Rc1 h6 12.Nf3 Be6 13.d4 0-0 14.de5) 9...Be6 10.d4 e4 11.Ng5 Qd7 12.0-0 0-0 13.a4 Rad8 14.Ba3.

7.Nc3 g6 8.c5 A) 8...Bg7 9.Qb3 (9.cd6 Qd6 10.Bc4 Qb4 11.Bb3 Qd6 12.0-0 Nfd5 13.Qc1 Be6 14.Ba3; 9.Bc4 d5 10.Bb3 e4 11.Nd4 0-0 12.0-0 Bd7 13.Qe2 c6 14.f4; 9.Qa4 0-0 10.Qb3 Kh8 11.Be2 dc5 12.Ne5 Ned5 13.Nd5 Be6 14.0-0) 9...Ne4 10.Na4 c6 11.Rc1 Bf6 12.bc6 bc6 13.cd6 Qd6 14.Ba3; B) 8...Bh6 9.Qb3 (9.Bc4 d5 10.Bb3 e4 11.Ne5 a6 12.a4 0-0 13.0-0 Be6 14.f4; 9.Qa4 0-0 10.Bc4 d5 11.Bb3 e4 12.Ne5 Be6 13.Ne2 a6 14.0-0; 9.cd6 cd6 10.Qb3 Bd7 11.Ba3 Ne4 12.Bc4 Kf8 13.0-0 Rc8 14.Rfc1) 9...Kf8 10.Be2 Kg7 11.cd6 cd6 12.0-0 f4 13.h4 Bg4 14.d4; C) 8...Ne4 9.Ne4 (9.cd6 cd6 10.Bc4 Bg7 11.0-0 d5 12.Bb3 0-0 13.Na4 Bd7 14.d3) 9...fe4 10.Ng5 Bg7 11.cd6 cd6 12.Ne4 d5 13.Nc5 Qd6 14.Rc1; D) 8...Be6 9.cd6 (9.Qa4 Ned5 10.Bc4 Nc3 11.Bc3 Bc4 12.Qc4 d5 13.Qb3 Bc5 14.Be5; 9.d4 Bg7 10.de5 de5 11.Ne5 0-0 12.Be2 Ng4 13.Ng4 fg4 14.0-0; 9.Ng5 Bg8 10.d4 Ned5 11.de5 de5 12.Rc1 Qe7 13.Nd5 Bd5 14.Qa4) 9...cd6 10.Ng5 Bd5 11.Rc1 Bh6 12.Nd5 Ned5 13.h4 Qa5 14.Qb3.

7.Nc3 g6 8.d4 e4 9.Ng5 (9.Nd2 Bh6 10.Be2 0-0 11.h4 Be6 12.0-0 a6 13.a4 Qd7 14.Qb3) 9...h6 (9...Bh6 10.h4 0-0 11.Be2 Bg7 12.0-0 Bd7 13.Qb3 h6 14.Nh3) 10.Nh3 g5 (10...a6 11.Nf4 ab5 12.cb5 Bg7 13.h4 g5 14.Nh5) 11.d5 (11.a4 Ng6= (11...Bg7 12.Qc2 Be6 13.Be2 0-0 14.0-0) 12.Nd5 Bg7 13.Be2 0-0 14.0-0; 11.Qc2 Bg7 12.Be2 0-0 13.0-0 Be6 14.Qb3) 11...Bg7 (11...Ng6 12.Qd2=+ (12.Be2 Bg7 13.Bh5 Kf7 14.0-0) 12...Ne5 13.Be2 Bg7 14.0-0) 12.Be2 (12.Ng1 Ng6=+ (12...a6 13.Nge2 0-0 14.h4) 13.Nge2 0-0 14.Nd4; 12.Qc2 0-0 13.Be2 Ng4 14.0-0) 12...0-0=+ 13.Qd2 (13.Qc2 Ng4 14.0-0) 13...Ng6 (13...Bd7 14.Rb1) 14.0-0-0 (14.0-0 Ne5=+) 14...Ne5 (14...Qe7 15.Rhe1–/+) 15.f3 ef3 (15...Nfd7 16.f4 (worse 16.fe4 Nb6–/+) 16...Nf7 17.Rdf1=+) 16.gf3= a6 (16...Qe7 '=' 17.Rde1=+) 17.Nf2 (17.f4 Nf7=) 17...ab5 18.cb5 Qe8 (18...Qe7 19.Rhg1=+) 19.h4 (19.Rdg1!?= is an interesting idea) 19...g4–/+ 20.fg4 (20.f4 Ned7–/+) 20...Nfg4 (20...fg4 21.Rdg1 h5 22.Ba1–+) 21.Ng4 (21.Rdf1 Kh8=+) 21...Ng4 (21...fg4 22.e4–/+) 22.Bg4? (better 22.Rh3!?= is a viable option) 22...fg4–/+ 23.e4 Rf3 24.Rdf1 (better 24.Rhf1 Qf7 25.Rf3 Qf3 26.Qd3–/+) 24...Bc3 (better 24...Qf7! Black clearly has the better chances 25.Rf3 Qf3–+ (25...gf3?! 26.a3–/+)) 25.Bc3= Qe4 26.Re1 Qc4 27.Re3?? (better 27.Re8 was possible 27...Kf7 28.Rf8 Ke7 29.Re1 Be6 30.Re6 Kd7 31.Ra8 Qc3 32.Qc3 Rc3 33.Kd2+–) 27...Ra2–+ 28.Qe1 (28.Re8 Kf7 29.Rf8 Kf8 30.Qh6 Ke8 31.Qg6 Rf7 32.Re1 Re2 33.Qc2 Re1 34.Be1 Qd5 35.Qc3 Qb5 36.Qh8 Kd7 37.Qd4 Qc5 38.Qc5 dc5 39.h5–+) 28...Ra1 29.Kd2N Qa2 30.Kd3 Bf5 31.Kd4 Qa4 32.Bb4 Rd1 33.Rd3 Rfd3 34.Kc4 Qb3 0–1. Radu,Mihaela Z – Hodorogea,Irina (1620), Centrocoop op, 1997.

7.Nc3 Ng6 A) 8.Be2 A1) 8...Bd7 9.Qb3 (9.h4 e4 10.Nd4 Be7 11.h5 Ne5 12.h6 gh6 13.Rh6 Nfg4 14.Rh5) 9...Ne4 10.d4 ed4 11.Nd4 Nc5 12.Qc2 Be7 13.Nf5 0-0 14.Nd4; A2) 8...Be7 9.Qb3 (9.0-0 0-0 10.h3 Ne4 11.Qc2 Nc3 12.Bc3 Be6 13.a4 Qd7 14.d4; 9.h4 e4 10.Nd4 Ne5 11.0-0 0-0 12.h5 Nfg4 13.Bg4 Ng4 14.f3; 9.h3 0-0 10.0-0 Ne4 11.Qb3 Be6 12.Qc2 Nc3 13.Bc3 Bf6 14.Rab1; 9.Qc2 0-0 10.0-0 Bd7 11.Rae1 h6 12.d4 e4 13.Nd2 Qe8 14.f3; 9.a4 0-0 10.0-0 c5 11.d3 d5 12.Qb3 d4 13.Nd5 Be6 14.Ne7; 9.Qa4 0-0 10.0-0 Ne4 11.Nd5 Be6 12.d3 Nc5 13.Qc2 Qd7 14.d4; 9.Nd5 0-0 10.Qb3 Nd5 11.cd5 f4 12.e4 Nh4 13.Nh4 Bh4 14.0-0; 9.g3 0-0 10.0-0 e4 11.Nd4 Ne5 12.f3 ef3 13.Bf3 a6 14.Bg2) 9...0-0 10.0-0 Ne4 11.c5 Kh8 12.c6 bc6 13.bc6 Nc5 14.Qc2; B) 8.Qc2 Be7 (8...e4 9.Nd4 Be7 10.d3 0-0 11.de4 f4 12.ef4 Nf4 13.g3 Ne6 14.Nf5) 9.h4 (9.Be2 0-0 10.0-0 Bd7 11.Rae1 Kh8 12.Qb3 a6 13.a4 c5 14.d3; 9.h3 0-0 10.Be2 Bd7 11.0-0 e4 12.Nd4 c5 13.bc6 bc6 14.Rab1) 9...h5 10.Be2 0-0 11.Qb3 c6 12.0-0 Ng4 13.g3 Be6 14.a4; C) 8.h3 C1) 8...Be7 9.Be2 (9.Qb3 0-0 10.Be2 Ne4 11.0-0 Be6 12.d4 a6 13.de5 Nc5 14.Qc2; 9.Qc2 0-0 10.Be2 Bd7 11.0-0 e4 12.Nd4 c5 13.bc6 bc6 14.d3; 9.h4 e4 10.h5 Ne5 11.Nd4 0-0 12.h6 gh6 13.Be2 Qe8 14.Qb3) 9...0-0 10.0-0 Ne4 11.Qc2 Nc3 12.Bc3 Be6 13.a4 Qd7 14.d4; C2) 8...Bd7 9.Be2 (9.Qb3 e4 10.Nd4 Be7 11.Be2 0-0 12.0-0 c5 13.bc6 bc6 14.c5; 9.a4 Be7 10.Be2 0-0 11.0-0 c5 12.d3 Qa5 13.Nd2 Qc7 14.Bf3) 9...Be7 10.0-0 0-0 11.c5 dc5 12.Ng5 Kh8 13.Bc4 e4 14.Nf7; C3) 8...e4 9.Nd4 Be7 10.Be2 0-0 11.0-0 Ne5 12.Nd5 a6 13.Nf4 Rf7 14.Qb3; D) 8.Nd5 D1) 8...Be7 9.Ne7 (9.h4 Nd5 10.cd5 0-0 11.h5 Nh4 12.h6 gh6 13.g3 Nf3 14.Qf3; 9.Be2 0-0 10.Qb3 f4 11.0-0 Nd5 12.cd5 Bf5 13.Rac1 a6 14.Ne5; 9.Qb3 0-0 10.Be2 c5 11.bc6 bc6 12.Ne7 Qe7 13.0-0 Bd7 14.Rab1) 9...Qe7 10.h4 h5 11.Be2 Ng4 12.Qb3 Bd7 13.g3 e4 14.Ng5; D2) 8...Nd5 9.cd5 Be7 10.Qc2 Bf6 11.Rc1 Ne7 12.Bc4 Bd7 13.0-0 0-0 14.h3; D3) 8...Bd7 9.h4 a6 10.Nf6 Qf6 11.Qb3 ab5 12.cb5 Be6 13.Qc2 Bd5 14.Qc7; D4) 8...Be6 9.Qb3 (9.Ng5 Bg8 10.Nf6 Qf6 11.Nf3 Be7 12.Be2 Bf7 13.h4 h5 14.Ng5; 9.Nf6 Qf6 10.h4 0-0-0 11.c5 Bd5 12.Rc1 dc5 13.h5 Ne7 14.Ne5; 9.Bd3 Bd5 10.cd5 e4 11.Bc4 ef3 12.Qf3 Qd7 13.Bf6 gf6 14.Bd3) 9...Ne4 10.Be2 c6 11.bc6 bc6 12.Nb4 Qb6 13.d4 Qa5 14.Qa3; E) 8.h4 E1) 8...h5 9.Rc1 (9.Qb3 Be7 10.Be2 Ne4 11.g3 Be6 12.0-0 0-0 13.Qc2 Nc3 14.Bc3; 9.Be2 Be7 10.Rc1 e4 11.Ng5 Ng4 12.Nd5 Nh4 13.Bg7 Ng2 14.Kf1 Rg8; 9.Nd5 Be7 10.Be2 Bd7 11.Rc1 0-0 12.Ng5 Nd5 13.cd5 Bg5 14.hg5; 9.g3 e4 10.Ng5 Ne5 11.Nd5 Be7 12.Rc1 Nfg4 13.d4 ed3 14.Be5; 9.Ng5 Be7 10.g3 e4 11.d3 ed3 12.Bd3 Ne5 13.Be2 Nfg4 14.Nd5; 9.Rb1 Be7 10.Be2 Ng4 11.Nd5 0-0 12.Qb3 Be6 13.g3 Qd7 14.Ng5; 9.d4 Be7 10.de5 Ne5 11.Be2 0-0 12.Nd5 Neg4 13.Ng5 c6 14.Ne7; 9.a4 Be7 10.Be2 0-0 11.c5 Ng4 12.Bc4 Kh8 13.Nd5 Bd7 14.Ng5; 9.Qa4 Be7 10.Ng5 0-0 11.Qb3 c5 12.bc6 bc6 13.Ba3 c5 14.Rb1; 9.a3 Be7 10.Be2 0-0 11.c5 Ng4 12.Qb3 Kh8 13.cd6 Bd6 14.Ng5; 9.Qc2 Be7 10.Be2 0-0 11.Qb3 Ng4 12.c5 Kh8 13.cd6 Bd6 14.Ng5; 9.c5 Be7 10.cd6 Qd6 11.Bc4 e4 12.Ng5 Ne5 13.Qb3 Qb4 14.Bf7) 9...Be7 10.Be2 Ng4 11.Nd5 0-0 12.Qb3 c6 13.bc6 bc6 14.c5; E2) 8...e4 9.Nd4 Ne5 10.h5 Bd7 11.Be2 Qe7 12.Qa4 Qf7 13.0-0 Be7 14.Rac1.

5.a4 c5 6.b5 a5 (6...Nf6 7.d3=) 7.Nc3 b6 (7...Nf6 8.d3+=) 8.Be2 (8.d3 Bb7+/-) 8...Be7 (8...Qg5 9.g4 Ne7 10.Nh3+/-) 9.d3 Nf6 10.de4 fe4 (10...Bb7+/-) 11.Nd5 (better 11.Ne4 Ne4 12.Bh5 Kd7 13.Bf3 Nf2 14.Kf2+/-) 11...Nd5?? (11...Be6=) 12.cd5?? (12.Qd5 Bf6 13.Qa8 Bb2 14.Qe4 Qe7 15.Qe7 Ke7+-) 12...c4?? (better 12...Bf6 13.Bf6 Qf6= (worse 13...gf6 14.Bh5 Kf8 15.Ne2+=)) 13.Bc4 (better 13.Bg7!? Rg8 14.Bh5 Kd7 15.Qd4+-) 13...Bf5 (13...0-0 14.Ne2+/-) 14.Bg7 Nd7?? (better 14...Rg8 15.g4 Bd7+/-) 15.Bh8+- Rc8 16.Bb2 (better 16.Rc1+-) 16...Rc4 17.Ne2 Rb4 (17...Bg4 18.h3 Bh5 19.Qb3 Be2 20.Ke2+-) 18.Bc3 Rb3 (18...Rc4 19.Bd4+-) 19.Rc1 (better 19.Qb3 Nc5 20.Qc4 Nd3 21.Kd2 Nc5+-) 19...Rc3 (19...Nc5 20.Nd4 Nd3 21.Kd2 Nc1 22.Qc1 Rc3 23.Qc3 Bf6+-) 20.Rc3 Nc5 21.Nd4 Nd3 (21...Bf6+-) 22.Rd3 ed3 23.Nf5 h5 (23...Qc8 24.Qh5 Kd7 25.0-0+-) 24.Ne7 (better 24.Qh5!? Kd7 25.Qf7 Qe8 26.Qe6 Kd8+-) 24...Qe7 25.Qd3 Qf6 (25...Kd8 26.Qc2+-) 26.0-0 Qe5 (26...Kf8 27.Rc1 Qf7 28.Rc8 Kg7 29.Qd4 Kg6 30.Rh8+-) 27.e4 (better 27.Rc1 Kd8+-) 27...h4 28.f4 Qb2 29.Qf3 (better 29.e5 Kd8 30.Qe3+-) 29...Qa2 (29...Qd4 30.Kh1 Qc4+-) 30.f5 (30.Qh5 Kf8 31.Rc1 Qg2 32.Kg2 h3 33.Kh3 Ke7 34.Qh7 Kf6 35.e5 de5 36.Rc6) 30...Qb2 31.f6 Qa2 32.f7 Ke7 (32...Kf8 33.Qf4 Qg2 34.Kg2 h3 35.Kh3 Kg7 36.f8Q Kg6 37.Q4f5) 33.Qf6 (33.Qf6 Kd7 34.Qe6 Kd8 35.f8Q Kc7 36.Qfc8; 33.f8Q Kd7 34.Q3f7) 1-0. hurvajsmanka (1640) – AndreYonadam, Rated Bullet tournament https://lichess, 2014.

5.a4 Nf6 6.d3=+.

5.c5 dc5 6.bc5 Nf6 7.d4=+.

5.c5 d5 6.Nc3 c6 7.a3 a6 (7...Nf6 8.d4=) 8.d3 Be6 (8...Nf6 9.Be2=) 9.de4 (9.Nge2 Nf6+=) 9...fe4 10.f3 Nf6 (10...b6 11.cb6 Qb6 12.fe4+=) 11.fe4 Ne4 (11...de4 12.Qd8 Kd8 13.Rd1 Nbd7 14.Rd4+/-) 12.Ne4+/- de4 13.Qd8 Kd8 14.0-0-0 Kc7 (14...Nd7 15.Ne2 Kc7 16.Nd4+=) 15.Ne2 (15.Rd4!?+/-) 15...Nd7+= 16.Nd4 Bf7 17.g3 Be7 (17...Bd5 18.Bh3 Re8 19.Rhf1+/-) 18.Bg2 Bg5 19.Rde1 (19.Rhe1 Rhf8+/-) 19...Ne5 (19...Rhe8 20.h4 Bf6 21.Nf5+=) 20.Nb5! Kb8?? (20...ab5 21.Be5 Double attack (21.Be5 Discovered attack); 20...cb5 21.Be5 Double attack (21.Be5 Discovered attack)) 21.Be5+- Kc8 22.Nd6 Kd7 23.Nf7 Bh6 (23...Bf6 24.Bf6 gf6 25.Nh8 Rh8 26.Rd1 Kc7 27.Rd6+-) 24.Nh8 Rh8 25.Rd1 Ke6 26.Bf4 g5 (26...Bf4 27.gf4 Re8 28.Rd6 Kf7 29.Rd7 Re7 30.Rhd1+-) 27.Bg5! Bg5 28.Rhe1 Rf8 29.Rd6 Ke5 30.h4 Be7 31.Rdd1 (better 31.Rh6 Rg8+-) 31...Rf2 32.Rg1 (32.Rd2 Rd2 33.Kd2 h6+-) 32...Ra2 (32...Re2+-) 33.Rd2 (better 33.Bh3!? Ra3 34.Rgf1 Ra1 35.Kc2 Rd1 36.Kd1 h6+-) 33...Ra3?? (better 33...Ra1 34.Kc2 Rg1=) 34.Rb2 (34.Rf1 Rc3 35.Kd1 Re3+-) 34...Ra1 (34...Re3 35.Rf1 Rc3 36.Kd1 Rd3 37.Rd2 Rg3+-) 35.Kc2 (better 35.Rb1 Ra2 36.Bh3+-) 35...Rg1-/+ 36.Rb3?? (better 36.Kc3-/+) 36...Rg2-+ 37.Kc3 (37.Kc1 h5-+) 37...Rg3 38.Kc4 (38.Kd2 Bh4 39.Rb1 Bg5-+) 38...Bf6 (38...Bh4 39.Rb2 Re3 40.Rh2-+) 39.Rc3 (39.h5 Bg5-+) 39...Ke6 (better 39...Bh4 40.Rb3 h5-+) 40.Rd3 (40.Ra3 Bh4 41.Kd4 Kf5-+) 40...Be5 (better 40...ed3 41.Kd3 Bh4-+) 41.Rd5 (41.Ra3-+) 41...Re3 (41...cd5!? 42.Kb3 d4 43.c6-+) 42.Re5 Ke5 43.b5 Rd3 44.bc6 (44.bc6 Rd4 45.Kb3 bc6 46.Ka3 e3 47.Kb2 e2 48.Kb3 e1Q 49.Kb2 Qd2 50.Ka3 Rb4 51.h5 Qb2). EvgeniyR – ORX, Hourly Bullet Arena, lichess.org, 2018.

5.d3 Nf6 6.de4 fe4 7.Nc3 Bg4 8.Be2 Qd7 (8...Bf5 9.Bh5 Nh5 10.Qh5 g6 11.Qe2+=) 9.h3 (better is 9.Ne4 Be2 10.Nf6 gf6 11.Ne2+– (11.Ke2?! Qg4 12.Kd2 Qc4+=)) 9...Bh5?? (better is 9...Be2 10.Nge2 c6=) 10.Bh5+– Nh5 (10...Kd8 11.Be2+–) 11.Qh5 g6 12.Qd5 c6 13.Qe4 Be7 14.Nf3 0-0 15.0-0 Na6 16.a3 b5 17.cb5 cb5 18.Rad1 Rae8 19.Qd4 Bf6 20.Qd6 Qd6 21.Rd6 Nb8 22.Rfd1 Rd8 23.Rd8 Bd8 24.Nb5 Nc6 25.Nfd4 Rf6 26.Nc6 Rc6 27.Rd8 Kf7 28.Rd7 Ke8 29.Ra7 Rb6 30.a4 Rb8 31.Ra8! Ra8 32.Nc7 Kd7 33.Na8 Kc6 34.b5 Kb7 35.a5 Ka8 36.a6 Ka7 37.Bd4 Ka8 38.b6 h5 39.b7 Kb8 40.Be5 Ka7 41.b8Q Ka6 42.Bd4 Ka5 43.Bc5 Ka4 44.Qb4 1–0. Fournier,Frederic – Guest1143353, Partie amicale, 2007.

5.Ne2 Nf6 6.Nf4 Nc6 7.a3 Be7 8.h4 (8.d4!?+=) 8...Ne5 9.d4 ed3 10.Bd3 Nd3 11.Qd3 0-0 12.Nc3 Ng4 13.h5 Ne5 14.Qe2 Qe8 (14...Bg5 15.0-0=) 15.Ncd5 (15.Nb5 Bd8=) 15...Bd8 16.Rd1 c6 17.Nc3 a5 18.Rd6 ab4 19.ab4 Bc7 (better 19...Be7!? 20.Rd1 Bb4=+) 20.Rd1+= Ng4 21.g3 Be6 22.h6 (22.Ne6 Qe6 23.b5 Be5=) 22...g5 (22...Nh6 23.Ne6 Qe6=) 23.Nh5 (better 23.Ne6 Qe6 24.Rh5+=) 23...f4?? (better 23...Qf7 24.Rd2 Ne5-/+) 24.Ng7+- Qg6 (24...f3!? 25.Qd2 Qe7 26.Ne6 Qe6 27.Qd7 Qd7 28.Rd7+/-) 25.ef4 Bf5 26.Nf5 Qf5 27.0-0?? (better 27.Rh5 Rae8 28.Rg5 Qg5 29.fg5 Re2 30.Ne2+-) 27...gf4= 28.Ne4 f3 29.Qc2?? (better 29.Qd2 Be5 30.Be5 Ne5 31.Qg5 Qg5 32.Ng5+=) 29…Qh5 (29...Qh5 30.Nf6 Rf6 31.Qh7 Kh7 32.Rd7 Kh6 33.Bc1 Kg6 34.Rg7 Kg7 35.Bh6 Rh6 36.Re1 Qh1) 0-1. jhonores (2200) - Aldebaraan (2205), Rated Blitz game, lichess.org, 2020.

5.a3 g5 6.Nf3 Nf6 (6...g4 7.Ng1=) 7.h3 (7.d4 Qe7+/–) 7...h5? (7...Rg8 8.d4 g4 9.hg4 fg4 10.Nfd2=) 8.Be2 (better is 8.Ng5!? Bd7 9.Be2+/–) 8...g4= 9.hg4 fg4 10.Nh4 Ne4 (10...Rg8 11.d4 ed4 12.Qd4=) 11.Nc3 Nc3 12.Bc3 Qg5 13.g3 (13.d4 ed4 14.Qd4 Rh6+=) 13...Nd7 14.d4 e4?? (better is 14...ed4 15.Qd4 Ne5=) 15.d5+– Bg7 16.Bg7 Qg7 17.de6 Ne5 18.Qd4 0-0-0 (18...Qf6 19.0-0+–) 19.Qa7 Nf3 20.Nf3 (better is 20.Kf1!? Qa1 21.Kg2 Nh4 22.gh4 Qh1 23.Kh1 c5 24.bc5 dc5+–) 20...Qa1 21.Bd1 c6 22.0-0 (22.Qa8 Kc7 23.Qa5 Kb8 24.b5 cb5 25.Nd4+–) 22...ef3 23.Ba4 (23.b5 Qe5 24.Ba4+–) 23...Qa3 24.c5?? (better is 24.b5 d5 25.bc6+–) 24...Qb4–+ 25.cd6 Qd6 26.Qa8? (26.Rc1 Qb8 27.Qa5 Rd6–+) 26...Kc7 (26...Qb8!? 27.Qa5 Rd5 28.Qb4–+) 27.Qa5 Kb8 28.Ra1 (28.Rd1 Qd1 29.Bd1 Rd1 30.Kh2 Rd5–+) 28...Qe6 29.Bc2 Qc4?? (better is 29...Qf6 30.Qa8 Kc7 31.Qa5 Kd7–+) 30.Qa8 (30.Qe5 Kc8 31.Bf5 Qe6 32.Be6 Rd7 33.Ra8) 30...Kc7 31.Qa5 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

5.a4 Nd7 6.b5 c5 (6...Be7=) 7.Nf3 (7.Nc3 Ngf6=) 7...Nb6 (7...e4!? 8.Ng1 Ne5=+) 8.Qc2 (8.d3 a6 9.a5 Nd7+=) 8...a6 (8...e4 9.Ng1=) 9.Be2 (9.a5 Nd7 10.Nc3 Nh6+=) 9...e4= 10.Ng1 ab5 11.ab5 Ra1 12.Ba1 Qh4 (12...Qg5 13.g3 Qh6+=) 13.Nh3+= h5 (better 13...Nf6!?+=) 14.0-0 Nf6 15.Nf4 Bf7 16.Qa2 (16.g3 Qg5 17.h4 Qh6+–) 16...Be7 (16...Ng4 17.h3 Ne5 18.Nc3+–) 17.Qa5 (better 17.Qa7!? Nfd7 18.Bg7+–) 17...Bd8+= 18.Qa7 0-0 (18...Ng4 19.h3 Ne5 20.Qb7+–) 19.Qb7 (better 19.g3 Qg5 20.h4+–) 19...Bc4?? (better 19...Nc4 20.Qc6 Ng4+–) 20.Bc4+– Nc4 21.Ne6 Rf7 22.Qc8 Nd7 (22...Ne8 23.Rc1 Nb6 24.Qd8 Qd8 25.Nd8 Ra7+–) 23.Nd8 (worse 23.Qd8 Qd8 24.Nd8 Rf8+–) 23...Ndb6 24.Qb8 Nd7 25.Qa8 (better 25.Qc7 Re7 26.Nb7+–) 25...Ncb6 (25...Ndb6 26.g3 Qe7 27.Qb8+–) 26.Qa2 (26.Qc6!? Qd8 27.Qd6+–) 26...Qd8+= 27.Nc3 c4 28.Bb2 Qa8 (28...Nc5!?+=) 29.Qa8+– Na8 30.Ra1 Nc7 (30...Ndb6 31.Ne2 Nc7 32.Bd4+–) 31.Ra7 (31.Ba3!? Ne8 32.Bb4+–) 31...Nb6+= 32.Rb7 (32.h4 g6+–) 32...Nca8 33.Rf7 Kf7 34.h3 Nc7 35.f3 ef3 36.gf3 g5 37.Kf2 Ke6 38.e4 fe4 (38...d5 39.ef5 Kf5 40.Ke3=) 39.fe4+= Ke5?? (better 39...d5+=) 40.Nd5+– Ke4 41.Nc7 (41.Nb6?! Kd3+=) 41...Nc8 (41...Na4 42.Ba3 d5 43.Na8+–) 42.Ne6 g4 (42...Kd5 43.Ng5 Kc5 44.Kg3 Kb5 45.Kh4+–) 43.hg4 hg4 44.Kg3 Kd5 45.Nd4 Kc5 46.Kg4 Na7 (46...Nb6 47.Kf4+–) 47.Kf4 Nb5 (47...c3 48.Bc3 Nc8+–) 48.Nb5 Kb5 (48...Kc6 49.Bd4+–) 49.Ke4 Kc6 50.Kd4 Kb5 (50...d5 51.Ba3 Kb5+–) 51.Kd5 Kb4 (51...Ka5 52.Kc6 Ka6 53.Kd6 Kb6 54.Kd5 Kb5 55.Bc3 Kb6 56.Kc4 Kc6 57.d4 Kd6 58.Bb4 Ke6 59.d5 Kf5 60.d6 Kg6 61.Be1 Kf5 62.d7 Ke6 63.d8Q Kf5 64.Qd7 Kf4 65.Qf7 Kg4 66.Qg6 Kf3 67.Kd3 Kf4 68.Kd4 Kf3 69.Qe4) 52.Bc3 Kb5 (52...Kb3 53.Kd6 Kc2 54.Bb4 Kb2 55.Kc5 c3 56.Bc3 Kb3 57.Bb4 Kc2 58.Kc4 Kc1 59.d4 Kd1 60.d5 Ke2 61.d6 Ke3 62.d7 Kf4 63.d8Q Kg3 64.Qg5 Kf3 65.Qf5 Kg2 66.Qg4 Kf1 67.Qh3 Kf2 68.Kd3 Kg1 69.Bc5) 53.Kd6 Kb6 54.Kd5 Kb5 55.Kd4 Kc6 (55...Kb6 56.Kc4 Kc6 57.d4 Kd6 58.Bd2 Kd7 59.Kc5 Ke7 60.d5 Kd7 61.d6 Ke6 62.Bc1 Kd7 63.Bh6 Kc8 64.Kc6 Kd8 65.Bg5 Ke8 66.d7 Kf7 67.d8Q Kg6 68.Qg8 Kh5 69.Bf6 Kh6 70.Qg4 Kh7 71.Qg7) 56.Kc4 (56.Kc4 Kd6 57.d4 Ke6 58.d5 Ke7 59.Kc5 Kf7 60.Bd2 Ke7 61.d6 Kf6 62.Bc3 Kf5 63.d7 Ke4 64.d8Q Ke3 65.Qh4 Ke2 66.Qg3 Kf1 67.Kd4 Ke2 68.Qf4 Kd1 69.Qd2) 1–0. retiponziani (2000) – Nimzowitsch1988 (1715), ChessWorld.net, 2017.

5.Qa4 Bd7 6.b5 b6 7.c5 (better 7.d4!? e4 8.Nh3+=) 7...bc5=+ 8.Qc4 (8.Na3 Nf6=+) 8...Nf6–/+ 9.Nf3 (9.Nc3 c6–/+) 9...d5 (9...e4 10.Ng5 d5 11.Qc2–/+) 10.Qh4 h6 (better 10...e4 11.Ne5 Bd6–/+) 11.Be5+= Be7 12.Bf6 (12.Qg3 g5 13.h4 g4 14.Bc7 Qc8+=) 12...Bf6 13.Qh5 Kf8 14.Nc3 Bc3 15.dc3 Be8? (better 15...Qf6 16.Rc1 g6=) 16.Qf5+– Bf7? (16...Qf6 17.Qf6 (17.Qd5 Qc3 18.Kd1 Qa1 19.Kc2 Bg6 20.e4 Be4 21.Qe4 Qa2 22.Kc1 Qa3 23.Kc2 c6 24.Qf5 Ke7+–) 17...gf6 18.a4+–) 17.Be2 (17.Ne5!? Qf6 18.Qc8 Be8+–) 17...Nd7 18.Nh4 (18.Rd1 g6 19.Qc2 a6+–) 18...Nf6 (18...Qf6 19.Rc1 Ke7 20.Qf6 Kf6 21.Rd1+–) 19.Ng6 (19.c4 c6 20.bc6 Qa5 21.Kf1 dc4+–) 19...Bg6+– 20.Qg6 Qd7 (20...Qe8 21.Qe8 Ke8 22.Bf3+–) 21.0-0 (21.Rd1 Qf7 22.Qf7 Kf7+–) 21...Re8 (21...c4 22.a4+–) 22.Qg3 (22.c4 d4+–) 22...Kf7 (22...Ne4 23.Qf3 Kg8 24.c4+–) 23.Bd3 g5 (23...Ne4 24.Qf3 Kg8 25.Be4 de4 26.Qe2+–) 24.f4 (24.c4 c6 25.Rab1 cb5 26.Rb5 dc4 27.Bc4 Kg6+–) 24...Rhg8 25.Bh7?? (25.c4!? c6 26.a4 Qe6+–) 25...Rg7?? (better 25...Nh7 26.fg5 Kg7 27.gh6 Kh8=+) 26.Bc2 Qb5 (26...c6 27.fg5 Rg5 28.Qf4+–) 27.fg5+– Rg5 28.Qc7 Re7 29.Rf6! Kf6 Decoy to f6 30.Qd6 Re6 (30...Kf7 31.Rf1 Qf1 32.Kf1 c4 33.Qh6 Rge5+–) 31.Qd8 (31.Qf8 Ke5 32.Qf4) 31...Re7?? (31...Ke5 32.Rf1 Qb6 33.Qh8 Kd6 34.Qf8 Kc6 35.Ba4 Kb7+–) 32.Qh8 (better 32.Qf8 Ke6 33.Qh6 Kd7 34.Qg5 Qc6+–) 32...Kf7?? (32...Reg7 33.Rf1 Ke5+=) 33.Rf1+– Qf1 34.Kf1 Ke6 (34...Re6+–) 35.Qh6 (35.Qh6 Kf7 36.Qg5+–) 1–0. MARYMARY – chesselectric (1610), ChessWorld.net, 2012.

5.Nc3 Nc6 6.a3 Nf6 7.Nf3 e4 (7...Be7 8.d4 ed4 9.ed4=) 8.Ng5 Qd7 (8...Bd7 9.d4=) 9.Ne6 (9.d3 h6 10.Ne6 Qe6 11.de4 fe4+=) 9...Qe6 10.Nb5 (10.d4 Qd7+=) 10...0-0-0= 11.Qb3 (11.d4 d5+=) 11...a6+= 12.Nd4 Nd4 13.Bd4 g5 (13...c6 14.d3+=) 14.Be2 (14.b5 ab5 15.Qb5 c5+–) 14...h5 (14...Bg7 15.b5 ab5 16.Qb5+–) 15.Rb1 (15.b5 ab5 16.Qb5 c5+–) 15...h4 (better 15...Bg7!?+=) 16.b5+– a5 17.b6 (17.Qc3 Bg7 18.b6 c5 19.Qa5 Kd7+–) 17...c5 18.Bc3 f4 (18...h3 19.g3 d5 20.cd5 Qd6+–) 19.Ba5 (19.Qa4 Bg7+–) 19...f3? (better 19...h3 20.gh3 f3+=) 20.gf3+– ef3 21.Bf3 Qf5 (21...g4 22.Bd5 Nd5 23.cd5+–) 22.Bd5 (22.Be2+–) 22...Ng4? (better 22...Nd5!? 23.cd5 Bg7+–) 23.f3 (23.Bc3 Ne5+–) 23...Nf6 24.Bc3 Nd5 (24...Bg7 25.Bf6 Bf6 26.Ke2+–) 25.cd5 (better 25.Bh8!? Ne7 26.e4 Qf7+–) 25...Rh7 (25...Rg8 26.Rf1+–) 26.0-0 g4 (26...Bg7+–) 27.f4 (better 27.Qa4 gf3 28.Qa8 Kd7 29.Qb7 Ke8 30.Qc6 Ke7 31.Kf2+–) 27...g3+– 28.Qc4 Be7 29.Qe2 (29.e4 Qh3 30.Qe2 Rg8+–) 29…Rg8 (29...Rg8 30.e4 Qh3+–). jaddwarrior (1985) – espada_oro, ChessWorld.net, 2015.

5.Nc3 Ne7 6.a3 g5 7.Rc1 f4 (7...Ng6 8.d4=) 8.ef4 gf4 9.Be2 Bg7 10.Bh5 Kd7 11.Nf3 Bc4 12.Ne4 Bd5 13.d3 (13.Be5 Qf8 14.Bg7 Qg7 15.Qc2=) 13...Nbc6 (13...Nf5 14.Bg4 Rf8 15.Qc2=) 14.Bg4 (better is 14.b5+/–) 14...Be6?? (better is 14...Ke8=) 15.Nfg5?? (15.Be6 Ke6 16.Nfg5 Kd7 17.Qg4 Ke8 18.Ne6+–) 15...Bg4?? (15...Nf5 16.Ne6 Ke6 17.Bf5 Kf5 18.Qh5 Ke6 19.Ng5 Kd7 20.Qg4 Ke8+–) 16.Qg4+– Ke8 17.Ne6 (17.Ne6 Qc8 18.Qg7 Qe6 19.Qh8 Ng8 20.b5+–) 1–0. lican – maraquesh, internet, 2013.

5.d4 Nf6 6.de5 Ng4 (better is 6...de5!? 7.Qd8 Kd8=) 7.ed6+/– cd6 8.h3 Nf2? (better is 8...Ne5 9.Nd2 Qc7+/–) 9.Kf2+– Qh4 (9...Bc4 10.Nf3 (worse is 10.Bc4 Qh4 11.g3 Qc4+–) 10...Bf1 11.Rf1+–) 10.g3 Qe4 11.Nf3 Nd7 (11...Qc6 12.Nbd2+–) 12.Nbd2 (better is 12.Bd3 Qc6 13.Nd4+–) 12...Qc6 13.b5 Qb6 14.Bd4 Nc5 15.Nb3 (15.Ng5 Bg8+–) 15...0-0-0 (15...Ne4 16.Kg2 Qc7 17.Nbd2+–) 16.Ng5 Bg8 17.Qc2 Be7 (17...Kb8 18.Qf5 Re8 19.Nf7 Bf7 20.Qf7+–) 18.Nc5 dc5 19.Qf5 Kb8 20.Bg7 h6 21.Nf3 (better is 21.Nf7 Bf7 22.Bh8 Bg6 23.Qf4 Ka8 24.Qh6 Be4 25.Qb6 ab6+–) 21...Rh7 22.Be5 Ka8 23.Bg2 Rf7 24.Qh5 Rd2 (24...Qe6 25.Rad1 Rd1 26.Rd1 Qc4 27.Bf4 Qa2 28.Kg1+–) 25.Kg1 Rd8 26.Kh2 Bd6 27.Rad1 Be5 28.Ne5 Rd1 (28...Rf2+–) 29.Rd1 Rf8 30.Nd7 Qe6 31.Nf8 Qc8 32.Qh6 Bc4 33.Qf6 a6 34.Rd8 Qd8 35.Qd8 Ka7 36.b6 1–0. typ48 (1660) – limanda55, internet, 2013.

5.Nf3 Nc6 6.d4 Nb4 7.de5 de5 8.Be5 Qd1 9.Kd1 0-0-0 10.Kc1 Nd3 11.Bd3 Rd3 12.Bd4 =.

5.Nf3 e4 6.Nd4 Bd7 7.d3 c5 8.Nb5+= Bb5 9.cb5+/– cb4 10.de4+– b6? 11.Qh5 g6 12.Qf3 Nf6 13.e5 Ne4 14.ed6 Rg8 15.Bd3 Nd7 16.Be4 Bd6 17.Ba8 Be5 18.Bd4 Bd4 19.ed4 Qe7 20.Kf1 Nf6 21.Nc3 Kf7 22.Re1 Qd7 23.Bd5 Nd5 24.Qd5 Qd5 25.Nd5 Kg7 26.Re7 Kh6 27.Nb4 Rd8 28.Nc6 Rd5 29.a4 Kh5 30.Rh7 Kg5 31.Ra7 f4 32.Rb7 Rf5 33.h4 Kg4 34.f3 Kh5 35.Rh7# 1–0. pierre – rainman 1, ChessWorld.net, 2005.

5.Nf3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 Be6).

5.Nf3 g5=.

5.Nf3 Nh6 6.c5 (6.d4 Nc6= (6...Nd7 7.Nc3 Be7 8.Be2 0-0 9.0-0 a5 10.b5 e4; 6...a5 7.ba5 Nd7 8.Nbd2 Be7 9.c5 0-0 10.Nc4 e4) 7.d5 e4 8.Nfd2 Bd7 9.dc6 bc6 10.Be2 Nf7) 6...Nd7 (6...dc5 7.bc5 (7.Ne5 cb4 8.Qf3 Nd7 9.Qb7 Ne5 10.Be5 Bd5) 7...e4 (7...Bc5 8.Ne5 Nd7 9.Qc2 Bd6 10.Bc4 Bc4) 8.Nd4=+ Bf7 9.Qc2 Nc6 10.Bb5 Qd7; 6...a5 7.cd6 (7.ba5 Ra5 8.cd6 Bd6 9.Bc3 Nc6 10.Ba5 Na5) 7...Bd6 8.Ne5 0-0 9.b5 Nd7 10.Nf3 f4) 7.cd6 (7.d4 c6= (7...dc5 8.de5 cb4 9.Nd4 Qe7 10.Ne6 Qe6) 8.Nc3 e4 9.d5 Bd5 10.Nd5 cd5; 7.Qa4 c6 8.Na3 dc5 9.bc5 Nc5 10.Qc2 e4) 7...cd6 (7...Bd6 8.a3 (8.Na3 0-0 9.Bc4 Bf7 10.0-0 Bb4) 8...0-0 9.d4=+ (9.Nc3 Qe7 10.Nb5 e4) 9...e4 10.d5 Bf7) 8.b5 (8.d4 d5 (8...Be7 9.Nc3 0-0 10.Rc1 Rc8) 9.de5 Bb4 10.Bc3 Bc5+= (10...Bc3 11.Nc3 Rc8=); 8.Nc3 Be7 9.Bb5 0-0 10.0-0 Nb6) 8...Rc8=+ (8...Be7 9.Nc3 0-0 10.Be2 Rc8) 9.Be2 (9.Nc3 Be7 10.Be2 0-0) 9...Be7 10.0-0 (10.Nc3 0-0) 10...0-0 11.a4 Bd5 (11...Nb6 12.d3=+) 12.d4 (12.Nc3 Be6=) 12...e4 13.Nfd2 Nf6 (13...Qa5 14.Ra3=) 14.Nc3= Be6 15.Rc1 (15.a5 d5=) 15...d5 16.f3 Bd6 17.fe4 (17.Qb3!?=) 17...fe4=+ Black fights for the Initiative. 18.Ncb1? (better 18.Qb3!? Qe7 19.a5=+) 18...Nhg4–+ 19.Bg4 Ng4 20.g3 (20.Rf8 Qf8 21.Rc8 Bh2 (21...Qc8?! 22.Nf1–/+) 22.Kh1 Qc8–+) 20...Nh2 (better 20...Qg5 21.Rc8 Rc8–+ (21...Bc8?! 22.Rf8 Bf8 23.Nf1–+; worse 21...Qe3 22.Kg2 Bc8 23.Rf8 Bf8 24.Qf1–+)) 21.Rf8–/+ Kf8 22.Qh5 (22.Rc8 Bc8 23.Qh5 Bg3 24.Qh7 Kf7 25.Qh5 Kg8–/+) 22...Rc1–+ 23.Bc1 Bg3 24.Nf1?! (24.Kg2 Bd6 25.Ba3 Ba3 26.Qh2–+) 24...Nf1 25.Kf1 Qf6 26.Ke2 Qf2 27.Kd1 Threatening mate... how? 27...Qf3 28.Qf3 ef3 (28...ef3 29.Ba3 Kf7–+) 0–1. Hasler,Ulrich – Dommaschk,Jens, corr, 1990.

5.h4 Nd7 A) 6.Nf3 A1) 6...Nb6 7.Qc2 (7.Qb3 Nf6 8.Ng5 Bg8 9.d4 h6 10.Nh3 Ng4 11.h5=; 7.Na3 Bd7 8.Nb5 Be7 9.c5 Nd5 10.Qb3 Ngf6 11.Bc4=) 7...Bd7 8.a4 e4 9.a5 Nc8 10.Ng5 h6 11.Nh3=; A2) 6...Ngf6 7.d4 Bg8 8.de5 de5 9.c5 Qe7 10.Qa4 f4 11.Nbd2=; A3) 6...Be7 7.d4 Nh6 8.Qa4 c6 9.Nbd2 Ng4 10.h5 0-0 11.Qb3=+; B) 6.d4 B1) 6...d5 7.a3 (7.cd5 Bd5 8.a3 e4 9.Nc3 Bf7 10.g4 fg4 11.Bg2=) 7...dc4 8.d5 Bf7 9.Bc4 a5 10.Nf3 ab4 11.Ne5=; B2) 6...ed4 7.Bd4 c5 8.Bc3 Ngf6 9.bc5 dc5 10.Nh3 Qe7 11.Ng5=.

5.h4 e4 6.Nh3 Nf6 (6...Nc6 7.Ng5 Bc8 8.a3 Ne5 9.d4 ed3 10.Bd3 Be7 11.Nf3=) 7.Nf4 Bf7 8.d4 Be7 9.d5 c6 10.Be2 0-0 11.h5=.

5.h4 Be7 6.Nf3 Nh6 (6...Bd7 7.c5 Nf6 8.Qb3 e4 9.Ng5 d5 10.Bf6 gf6 11.Nh3+=; 6...Nf6 7.d4 0-0 8.Ng5 Bc8 9.de5 de5 10.Qd8 Rd8 11.c5=) 7.d4 Ng4 8.de5 de5 9.Qd8 Kd8 10.a3 Nd7 11.Nc3=.

5.Qh5 Kd7 6.Qd1 Nf6 7.Be2 Kc8 8.d4 ed4 9.ed4 Nbd7 (9...d5!? 10.c5 Nc6=) 10.d5+= Bf7 11.Nf3 h6 12.0-0 Be7 13.Nd4 g6 14.Ne6 (better 14.Re1!?+–) 14...Be6= 15.de6 Ne5 (15...Nf8 16.c5 dc5 17.Qb3=) 16.Qc2 (better 16.c5+–) 16...Re8?? (better 16...Qg8!?=+) 17.Rd1 (better 17.Be5 de5 18.Rd1+–) 17...Nc6+– 18.a3 Bf8 19.c5 (better 19.Bf3!?+–) 19...Re6= 20.Bf3 (20.Bc4 d5=) 20...Ne5 21.Be5 Re5 22.cd6 Bd6 23.Nc3 Qe8 24.Kf1 (24.Nb5 Rb5 25.Rd6 Re5=) 24...Re6 25.Nd5 Nd5 26.Bd5 Re7 (26...Bh2 27.Be6 Qe6 28.g3+–) 27.Bf3 Rb8?? (better 27...Be5 28.Rab1 a6=+ (worse 28...Bh2 29.g3+=)) 28.Rd6+– Qb5 29.Kg1 1–0. GuestQGGJ – GuestQBTQ, freechess.org, 2017.

6.b5 Be7 7.Nf3 Nbd7 8.Be2 0-0 9.Ng5 Bf7 10.Nf7 Rf7 11.0-0 Nc5 (11...a6 12.d4+=) 12.d3 e4 13.d4 Ncd7 14.f3 g6 15.Nd2 ef3 16.Bf3 (worse 16.gf3 Bf8=) 16...Rb8 17.a5 Rf8 (17...c6 18.Qb3+/-) 18.a6 b6 (18...d5 19.Qb3+/- (19.Bd5?! Nd5 20.cd5 Nf6+=)) 19.Nb1 Ne4 20.Nc3 Nc3 21.Bc3 Nf6 22.Bc6 Ne4 (22...Qc8!? 23.Qd2+/-) 23.Be4 fe4 24.Qg4 Qc8 25.Rf8 Qf8 (25...Bf8 26.Qe4 Qf5 27.Qf5 gf5 28.Rf1+-) 26.Rf1 Qg7 (26...Qc8 27.Qe4 Bf8 28.Qd5 Kh8 29.Rf7+-) 27.Qe4 (better 27.Qe6 Kh8 28.Rf7 Re8+-) 27...Re8?? (27...Rf8 28.Qd5 Kh8 29.Rf8 Qf8 30.Qb7+-) 28.Ba1 (better 28.Qe6 Kh8 29.Rf7+-) 28...Rf8 29.Qe6 Kh8 30.Re1 (better 30.Rf8 Bf8 31.Bc3+-) 30...Qf6?? (better 30...Bh4 31.Re2 Rf5+-) 31.d5 Qa1 32.Ra1 Bh4 (32...Bf6 33.Rf1 Kg7 34.Qd7 Rf7 35.Qc8+-) 33.g3 (33.Rf1 Rd8 34.Rf7 Bg5 35.h4 Bh6 36.Qf6 Kg8 37.Rc7 Be3 38.Kh1 Rd7 39.Rc8 Rd8 40.Rd8) 33...Bg5 (33...Bf6 34.Rf1 Kg7 35.Qd7 Rf7 36.Qc8+-) 34.Rf1 Rf1 35.Kf1 Kg7 36.e4 Bf6 37.h4 (37.Qd7 Kh6 38.Qc7 Bg5+-) 37...Bd4 38.g4 h5 39.gh5 (better 39.Qe7 Kg8 40.Qc7 Bg7+-) 39...gh5 40.Kg2 Be5 41.Kh3 Kh7 1-0. BeepBeepImAJeep (2565) - Trundle (1985), lichess.org, 2017.

6.d3 Nc6 7.b5= Ne7 8.Nf3 Qd7 9.Be2 g6 10.d4+= ed4 11.Bd4 Bg7 12.0-0 0-0 13.Ng5 Rad8 14.Ne6 Qe6+= 15.a5 c5= 16.Bb2 d5 17.Qc2 d4 18.ed4+= cd4 19.Qd3 Ng4 20.Bg4 fg4 21.Nd2 Rf7 22.Ne4 Nf5? 23.Ng5+– Qd7 24.Nf7 Qf7 25.c5 Qd5 26.Rfc1 Nh4 27.Qg3 g5 28.Qg4 h5 29.Qg3 Be5?? 30.Qg5 Kf7 31.Qh4 Rg8 32.Qh5 Ke7 33.g3 Kd8 34.c6 b6 35.c7 Kc8 36.Qf5 Kb7 37.a6 Ka8 38.c8Q Rc8 39.Rc8 Bb8 1–0. hal1958 – adamant, playchess.de, 2002.

6.Be2 Nbd7 (6...Nc6!?=+) 7.Nf3= Be7 8.0-0 0-0 (8...a5 9.Ng5 Bg8 10.b5+=) 9.b5 (9.Ng5 Bf7+–) 9...Nc5 (9...Qc8 10.Nc3=) 10.d4+= ed4 11.ed4 (better 11.Nd4 Qd7 12.Qc2=) 11...Ncd7 (11...Nce4 12.d5 Bd7 13.Nd4=) 12.Re1 (12.Ng5 Bf7+–) 12...Re8 (12...Ne4!?+=) 13.Bd3 Bf8 (13...Ne4 14.Nc3 Nc3 15.Bc3+–) 14.Qc2 (14.Ng5!? Ne4 15.Ne6 Re6+–) 14...g6 15.d5 (better 15.Ng5!? Bf7 16.Nd2+–) 15...Bf7+= 16.Nbd2 Bg7 17.Ng5 (better 17.Nb3+=) 17...Ne4? (17...Nc5 18.Nb3 Nb3 (worse 18...Nd3 19.Qd3 Qd7 20.Na5+=) 19.Qb3 Nd7 20.Bg7 Kg7 21.Qb2 Qf6 22.Qf6 Nf6= (worse 22...Kf6 23.Nh7 Kg7 24.Ng5+–)) 18.Nge4 (18.Be4?! Qg5 19.Nf3 Qf4=; 18.Nf7?! Kf7 19.Bg7 Kg7 20.Be4 fe4 21.Ne4 Kg8+–) 18...fe4 19.Ne4 Ne5 20.Be5 (better 20.Be2!?+–) 20...Be5+– 21.Rab1 Bg7 22.h3 (22.Qd2 Qe7+–) 22...Re7 (better 22...Qh4+–) 23.Ng5?? (better 23.a5+–) 23...Re1–+ 24.Re1 Qg5 25.Re4 Re8 26.Re8 (26.h4 Qh5 27.g3 Re4 28.Be4 Qe5–+) 26...Be8 27.Qe2 Bd7 28.Qe3 b6 (better 28...Qe3 29.fe3 Kf7–+) 29.Qg5+– (29.Qg5 Be8 30.Qd8+–) 1–0. retiponziani (1935) – mrgiff (1860), ChessWorld.net, 2016.

6.Nc3 Nbd7 7.d4 Be7 8.d5 Bf7 9.Be2 g6 10.Nf3 Nb6 11.Ng5 (11.a4 Nbd7+=) 11...h6 (better is 11...Nfd5!? 12.Nf7 Nc3 13.Nd6 Bd6 14.Bc3 Qf6=) 12.Nf7+/– Kf7 13.a4 a6 14.a5 Nbd7 15.Qb3 Nc5 16.Qc2 ab5 17.cb5 (worse is 17.Nb5 c6 18.Nc3 Ra5+=) 17...Qd7 18.0-0 Kg7 19.a6 b6? (better is 19...ba6!? 20.ba6 Qc8+=) 20.Na4 Nd5 21.Nc5 bc5 22.Bf3 (better is 22.Rfd1!? c6 23.bc6 Qc6 24.Bf3+/–) 22...Nb4+= 23.Qc4 d5 (better is 23...c6 24.b6 Rhb8+=) 24.Be5+– Kh7 25.Rfd1 (25.Bh8 Kh8 (25...dc4 26.Ba8 Qd8 27.Bb7+–) 26.Rfd1 c6 (26...dc4 27.Rd7 Ra7 28.Re7+–) 27.bc6 Qc6 (27...dc4 28.Rd7 Ra6 29.Ra6 Na6 30.Re7+–) 28.Bd5 Nd5 29.Rd5 Ra7+–) 25...Rhd8 (25...dc4?? 26.Rd7 Rhe8 27.Ba8 Ra8 28.Re7 Kg8 29.Rg7 Kf8 30.Rh7+–) 26.Qb3 (better is 26.Bb2+–) 26...Qb5= 27.Bd5?? (better is 27.Bc7 c4 28.Qc3=) 27...Ra6?? (better is 27...c4 28.Bc4 Qe5–+) 28.Bc4 (28.Bg8 Rg8 29.Qf7 Rg7 30.Qg7) 28...Ra1 29.Ra1 Qc6 30.h3 1–0. typ48 – ottorr, internet, 2013.

6.Be2 Be7 7.Nf3 0-0 8.Ng5 Qd7 9.Ne6 Qe6 10.Nc3 c5 11.a4 Nbd7 12.0-0 e4 13.f4 Kh8 14.Qb3 b6 15.a5 h6 16.Rad1 (16.ab6 Nb6 17.Ra6+/–) 16...g5? (better is 16...ba5 17.Ra1 Bd8=) 17.fg5+– hg5 18.a6 Ne5 19.Nd5 Nd5 20.cd5 Qh6 Black intends f4 21.d4 ed3 22.Bd3 f4 23.ef4 gf4 24.Rf3 Qg5 25.Rh3 Kg7 26.Rf1 Rh8 27.Rhf3 Bf6 (27...Rh4!? 28.Qc4 Rf8+/–) 28.Rf4+– Raf8 29.Be2 Qh6?? (29...Rh6 30.Bc1 Qg6 31.Rf5+–) 30.h3 (better is 30.Qg3!? Qg6 31.Be5 Qg3 32.Bf6 Rf6 33.hg3 Rhf8+–) 30...Bg5? (30...Qg5 31.Rf5 Qh4 32.Qe3+–) 31.Be5 (better is 31.Qg3 Rf4 32.Rf4+–) 31...de5 32.Rf8 Rf8 33.Rf8 Kf8 34.Qf3 Qf6 35.Qf6 Bf6 36.Bf3 (36.Kf2!?+–) 36...c4 37.Be4 c3 38.Kf2 Bg5 39.Ke2 Ke7 40.Kd3 Bd2 41.h4 Kd6 42.Kc4 Be1 43.h5 Bd2 44.g4 Kc7 45.Bc2 Kd6 46.Bd1 e4 47.Kd4 e3 48.Kd3 Kd5? 49.Ke2 Ke5 50.h6 Kf6?? 51.h7 Kg7+/– 52.Bc2 Bc1 53.Kd3 Bd2 54.Ke2 Bc1 55.Kf3 Bd2 56.g5 Bc1 57.g6 Bd2 58.Ke2 Bc1 59.Kd1 Bd2 60.Ke2 Bc1 61.Kd1 Bd2 62.Ke2 ½–½. typ48 – swojak777, internet, 2013.

6.d4 ed4!? 7.ed4 Qe7 =.

6.d4 e4 7.d5+= Bd7 8.f4 Be7 9.a4 0-0 10.h3 a5 11.b5 c6 12.Nge2 cd5 13.Nd5 Nd5 14.Qd5 Kh8 15.Nc3 (15.Qb7 Na6 16.ba6 Rb8 17.Bg7 Kg7+/–) 15...Ra7 (15...Qc8!? 16.Qd2 Bh4 17.Kd1 Be6=) 16.Be2 Bh4 17.Kd2 Qe7 (17...Bc8!?=) 18.Qd4 Ra8 19.Nd5 Qf7 20.g3 Bd8 (20...Bg3 21.Bh5 Qg8 22.Rhg1+–) 21.g4 Be6 22.gf5 Bd5 23.Qd5 (worse is 23.cd5 Bf6 24.Qe4 Bb2–/+) 23...Qd5 24.cd5 Rf5 25.Bc4 (25.Rhg1!? Bf6 26.Bf6 gf6 27.Kc2+–) 25...Nd7+= 26.Rhg1 Nf6 (26...Bf6 27.Bf6 Nf6 28.Rg5 Rg5 29.fg5=) 27.Bf6 (27.Rac1!?+/–) 27...Bf6+= 28.Rac1 Rc8? (28...Rg8 29.Bb3+=) 29.Bb3 (better is 29.Bd3 Re8 30.Be4+–) 29...Rc1+= 30.Rc1 h6? (30...g5 31.Rc8 Kg7 32.Rc7 Kh6 33.fg5 Rg5 34.Rb7 Rg2 35.Kc1+=) 31.Rc7 (31.Rc8 Kh7+–) 31...Rh5? (31...g5 32.fg5 Bg5 33.Rb7+=) 32.Bc2 (32.Rc8 Kh7 33.Bc2 Rh3 34.Be4 g6+–) 32...Rh3? (better is 32...Rd5!? 33.Kc1 Rc5 34.Rb7 d5+/–) 33.Be4+– (33.Rb7 Rh2 34.Kc1 Rh1 35.Bd1 g5+–) 33...g5 34.Rb7 gf4 35.ef4 h5 (35...Ra3 36.Rh7 Kg8 37.Rh6 Ra4 38.Rf6 Re4 39.b6 Rd4 40.Ke3 Rd5 41.Rg6 Kf7 42.Rg5+–) 36.Rd7 h4 (36...Ra3 37.b6 Ra4 38.b7 Rd4 39.Bd3+–) 37.Rd6 Kg7 38.Ra6 (38.Rd7 Kf8 39.b6 Rh2 40.Ke1 Rb2+–) 38...Kf7 (38...Bd4 39.f5+–) 39.Ke2 Rh2 40.Kf3 Bc3 41.Ra7 Kf6 42.d6 Ke6 (42...h3+–) 43.d7 Ke7 44.Bc6 Rd2 45.Ra8 h3 (45...Rd7 46.Bd7 Kd7+–) 46.Re8 Kf6 47.d8Q Rd8 48.Rd8 h2 49.Kg2 (49.Kg2 Kf5 50.Rf8 Ke6 51.b6+–) 1–0. tyop (1700) – altobeli (1620), internet, 2013.

6.Nf3 a5 7.b5 Bd7 8.Be2 Be7 9.0-0 e4 10.Nd4.

6.Nf3 Nc6 7.b5 (7.Ng5 Bd7 8.b5 Ne7 9.Be2 a6 10.ba6; 7.a3 e4 8.Ng5 Bd7 9.d4 h6 10.Nh3; 7.d4 ed4 8.Nd4 Nd4 9.Qd4 Be7 10.Bd3) 7...Nb8 8.d4 Nbd7 9.Be2 e4 10.Ng5.

6.Nf3 Bd7 7.d3 (7.Be2 Be7 8.0-0 e4 9.Ng5 Nc6 10.Nd5; 7.Nd5 Nd5 8.cd5 Be7 9.Rc1 Bf6 10.d4; 7.a3 e4 8.Nd4 Be7 9.Be2 0-0 10.0-0) 7...Be7 8.Be2 a6 9.0-0 0-0 10.Qb3.

6.Nf3 h6 7.d4 e4 8.Nd2 Be7 9.a4 (9.d5 Bf7+=) 9...c6 10.Be2 0-0 11.0-0 d5 12.b5 g5 (12...Qc7 13.Qb3=) 13.a5 f4 14.ef4 gf4 15.f3 (15.bc6!? bc6 16.Re1+=) 15...e3=+ 16.Nb3 (16.cd5 Nd5 17.Qc2=+) 16...Rf7 (16...dc4 17.Qb1 Bf7-/+ (17...cb3?! 18.Qg6 Kh8 19.Qh6 Kg8 20.Qg6 Kh8 21.Qh6 Kg8 22.Qg6 Kh8 23.Qh6=)) 17.Nc5= White prepares the advance a6 17...Bc5 (17...Qc8 18.Ne6 Qe6 19.Qb3+=) 18.dc5+= Rg7 (18...cb5 19.Nb5 Rg7+/-) 19.a6+/- ba6 20.cd5 (20.Ne4 Ne4 21.fe4 d4 22.Bd4 Rd7-/+) 20...cd5 (20...Bh3 21.dc6 Rg2 22.Kh1 Qd1 23.Rfd1 Rg5+=) 21.c6?? (better 21.Ne4! Nh5 22.Bg7 Ng7 23.ba6+/-) 21...ab5=+ 22.Nb5 (better 22.Bb5 Qb6 23.Ne2 Qb5 24.Bf6=+) 22...a6?? (22...Nc6 23.Ra6 Bh3 24.Bf6 A) 24...Qf6?! 25.Qd5 Kh8 26.Qc6 (worse 26.Rc6 Bg2 27.Rc8 Rc8 28.Qd8 Rd8 29.Rd1 Rd1 30.Bd1 Qh4 31.h3 Bh3 32.Kh2 Be6) 26...Qc6 27.Rc6 Rg2 28.Kh1=; B) 24...Rg2 25.Kh1 B1) 25...Qf6?! 26.Qd5 Kh8 27.Qc6 (worse 27.Rc6 Rg7 28.Qg5 Qg5 29.Rh6 Qh6 30.Rd1 Bg2 31.Kg1 Bf3 32.Kf1 Qh3 33.Ke1 Rg1 34.Bf1 Qf1) 27...Qc6 28.Rc6=; B2) 25...Rg6-/+) 23.c7+- Qe8 (23...Qf8 24.Bf6 (worse 24.cb8R Rb8 25.Ra6 Qf7+-; worse 24.cb8Q Rb8 25.Ra6 Qf7+-) 24...Qf6 25.c8Q (25.cb8R Rb8 26.Ra6 Qg5-+; 25.cb8Q Rb8 26.Ra6 Qg5-+; 25.cb8N Qg5 26.Rf2 ef2 27.Kf2 Qg2 28.Ke1 Rb8-+; 25.cb8B Rb8 26.Ra6 Qg5-+) 25...Bc8 26.Qd5 Kh7 27.Qa8+-) 24.cb8Q (24.Bf6 Nc6 25.Bg7 Kg7+-) 24...Rb8 (24...Qb8 25.Bf6 Rg6+-) 25.Nc7 (better 25.Bf6 ab5 26.Bg7 Kg7 27.Qd4 Kg8 28.Qf4+-) 25...Qg6-+ 26.g4 Ng4 (26...fg3!? 27.h3 g2 28.Rf2 Qg3 29.Qe1 Qh3 30.Ne6 Qh1) 27.fg4-/+ Rb2?? (better 27...Bg4 28.Kh1 A) worse 28...Rb2 29.Qd5 Qf7 30.Qf7 Rf7 31.Bc4+/-; B) 28...Rc7? 29.Rg1 (29.Rf4?! Be2 30.Qe2 Rb2 31.Qb2 Rg7+-; 29.Qd5?! Qe6 30.Qe6 Be6+-) 29...Qe4 30.Bf3+-; C) 28...Qe4 29.Bf3 C1) worse 29...Rb2 30.Be4 (30.Qd5?! Qd5 31.Bd5 Kh8=+; worse 30.Nd5 Bf3 31.Qf3 Qf3 32.Rf3 Rgg2=+) 30...Bd1 31.Nd5+/-; C2) 29...Rc7 30.Rg1 Kf8 31.Rg4+-; C3) 29...Bf3 30.Rf3 Rc7-/+) 28.Ne6+- Qe6 29.Rf4 h5?? (better 29...Qe5 30.Raa4 a5+/-) 30.Ra6 Qe5 31.Ra8 Kh7 (31...Rb8 32.Rb8 Qb8 33.Qd5 Kh8 34.Qh5 Rh7+-) 32.Qd3 Kh6 33.Ra6 (33.Rh8 Rh7 34.Qh7 Kg5 35.Rf5 Qf5 36.Qf5 Kh4 37.Rh5) 33...Kg5 (33...Rb6 34.Rb6 Kg5 35.Qf5 Kh4 36.g5 Qf4 37.Qf4 Kh3 38.Qg3) 34.Rf5 (34.Qf5 Kh4 35.g5 Qf4 36.Qf4 Kh3 37.Qg3) 34...Kh4 35.Rh5 (35.Re5 Rg4 36.Bg4 Rh2 37.Rh5 Kg3 38.Qe3 Kg4 39.Rg5 Kh4 40.Rh6) 35...Qh5-+ 36.Qe3 Rg4 37.Bg4 (37.Qg3!? Rg3 38.hg3 Kg3 39.Ra3 (39.Bh5?? Rb1 40.Bd1 Rd1) 39...Kh4 40.Bh5 Kh5 41.Ra5-/+) 37...Qg4-+ 38.Kf1?? (better 38.Qg3 Qg3 39.hg3 Kg3 40.Kf1-+) 38...Rb1 (38...Qg2 39.Ke1 Qh1 40.Qg1 Qg1) 39.Kf2 Qf5 (39...Qg1 40.Kf3 Rf1 41.Ke2 Re1 42.Kd2 Qe3 43.Kc2 Re2 44.Kd1 Qd2) 40.Ke2 Rb2 (40...Qf1 41.Kd2 Qd1 42.Kc3 Rb3) 41.Kd1 (41.Qd2 Qe4 42.Kd1 Rb1 43.Qc1 Qd3 44.Ke1 Rc1 45.Kf2 Rf1 46.Kg2 Qf3) 41...Qf1 (41...Qc2 42.Ke1 Qb1 43.Qc1 Qc1) 42.Qe1= Qe1 43.Ke1 Rh2 44.Rd6 Rg2 45.Rd5 Kg4 46.Rd8 Kf3 47.Re8 Rg1 48.Kd2 Rg2 49.Kd3 Rg1 50.Rf8 Kg2 51.Ke3 Re1 52.Kd2 (52.Kd2 Rb1 53.Ke2=). persianempire (2020) - mandyzuchart (1840), Rated Blitz game, lichess.org, 2013.

6.Nf3 h6 7.Be2 Nbd7 8.0-0 g5 9.d4 e4 10.Nd2 d5 11.cd5 Nd5 12.Bh5 Ke7 13.Nd5 Bd5 14.f3 Nf6 15.fe4 Nh5 (better 15...fe4!? 16.Bg6 Qd6+=) 16.ed5+– Ng7 17.e4 f4 (17...fe4 18.Qb3+–) 18.g3 (18.Nf3 Qd6+–) 18...Qd6 (18...fg3 19.hg3 Qd6 20.Qf3+–) 19.Nc4 Qb4?? (19...Qa6 20.Ne5 Rg8+–) 20.Ba3 (20.Ba3 Qa3 21.Na3 fg3 22.hg3+–) 1–0. DEFFM – GuestTLWD, freechess.org, 2018.

7.a3 0-0 (7...Bd7 8.Be2= e4 9.Nd4 0-0 10.0-0) 8.d4 e4 (8...a5 9.de5 de5 10.Qd8) 9.Nd2 (9.Ng5 Bd7= 10.Be2; 9.d5 Bd7 10.Nd4) 9...Nbd7 (9...d5 10.cd5 Nd5 11.Nd5 Bd5 12.Bc4=) 10.c5 (10.d5 Bf7=) 10...d5 (10...dc5 11.dc5 a5 12.Bc4 Bc4 13.Nc4 ab4 14.ab4 Ra1 15.Ba1=) 11.Nb3 (11.Be2 Qe8=) 11...c6 12.a4 (12.Ne2 Qc7=) 12...Qc7 (12...Rb8 13.b5=+) 13.g3 (13.Ne2 Bf7=) 13...h6 (13...Bf7 14.Be2=+) 14.Be2 Ng4 (14...b6 15.0-0=+) 15.b5 (15.0-0 b6=) 15…Ngf6 ½–½. van Oosterom,Chiel – Ris,Robert, Rijswijk, 2000.

7.Qb3 e4 8.Ng5 Bc8 9.d3 a5 10.Qa4.

7.b5 a6 8.d4 Nbd7 9.ba6 Ra6 10.Be2.

7.d3 0-0 8.g3 Kh8 9.Bg2 Nbd7 10.0-0 a5 11.b5 Nc5 Black intends e4 12.a4 (12.Ng5!? Bg8 13.d4=) 12...e4+= 13.Nd4 Nd3?? (better is 13...Bf7 14.Nf5 Nd3+=) 14.Ne6+– Nb2 15.Qb3 (15.Qb3 Qc8 16.Nf8+–) 1–0. kannisogoet – fulzbych, internet, 2013.

7.d4 0-0= 8.Ng5 Qc8 9.Ne6 Qe6 10.Be2.

6.Nd2 Nbd7 7.Ne2 h6 8.h4 Be7 9.d4 c6 10.Qc2 0-0 11.Nb3 Ng4 12.g3 f4 13.ef4= ef4 14.Nf4+= Rf4 15.gf4+/– Bh4 16.Rh4 Qh4–/+ 17.Nc1?? Re8–+ 18.Bd3 Bf5 19.Kd2 Qf2 20.Kc3 Qf3 21.Qd2 Nf2 22.Kc2 Nd3 (22...Nd3 23.Bc3 N3c5 24.Nd3 Bd3 25.Kb2 Na4 26.Ka3 Re2–+) 0–1. Suess,Stefan – Dvorak, Verbandsliga, 1980.

6.Nd2 Be7 7.g3 0-0 8.Bg2 Nc6 9.b5= Nb8? 10.Bb7+– Nbd7 11.Ba8 Qa8 12.f3 Nc5 13.Qe2 e4+/– 14.d4?? Nd3–/+ 15.Kf1 Nb2 16.a4 Nd3 17.f4 c6 18.Nh3 cb5 19.ab5–/+ Rc8 20.Nf2 Nf2 21.Kf2 Ng4 22.Kg2=+ Bc4?? 23.Nc4+– Rc4? 24.Qc4 Kh8 25.Rhe1 Qb7 26.Qc6 (26.Qc6 Qc6 27.bc6+–) 1–0. alaamattar (2205) – tomy (2175), net–chess.com, 2005.

6.Nf3 Be7 7.Nbd2 Nbd7 8.Be2 Nb6 9.0-0 Qd7 10.Ng5+= h6 11.Bh5 Nh5 12.c5?? Bg5 13.cb6 ab6?? 14.d4? 0-0 15.de5? f4 16.Qh5 Bg4 17.Qg6 fe3 18.Ne4 ef2 19.Nf2–/+ Bf5 20.Qh5 g6 21.Qe2–/+ de5 22.Qe5 Bf6 23.Qe2 Bb2 24.Qb2 Qc6 25.Rac1 Qd6 26.Rfd1 Qf6 27.Qf6 Rf6 28.Rc7 Bc2?? 29.Rdd7 Ra2= 30.Rd8 Rf8=+ 31.Rf8 Kf8 32.h3 Rb2 33.Ng4 h5 34.Ne3 Be4=+ 35.Rc4 Bc6 36.Nc2 b5–/+ 37.Rc5 Ke7 38.g4 hg4–+ 39.hg4 Kd6 40.Kf2?? Rb4 41.Rc6= bc6 42.Nb4 Kc5 43.Nd3 Kd4 44.Nb4 c5 45.Nc6 Kc3 46.Ne5 b4–/+ 47.Ke3 b3–+ 48.Nf3 b2 49.Nd2=+ c4 50.Ke2?? Kc2?? 51.Nc4+= g5?? 52.Ke3 Kc3?? 53.Nb2!+– Kb2 54.Ke4 Kc3 55.Kf5 Kd4 56.Kg5 Ke5 57.Kh6 Kf6 58.g5 Kf7 59.g6 Kg8 60.g7 (60.g7 Kf7 61.Kh7+–) 1–0. vidyashankarh (1930) – nickbarletta (1865), net–chess.com, 2003.

6.ed4 Qe7 7.Qh5 Kd8 8.Qe2 =.

6.ed4 Nf6 7.d5 Bf7 8.Bd3 Qd7 9.Ne2 Na6 10.a3 0-0-0 11.0-0 Be7 12.Ng3 g6 13.Qc2 Rhg8? (better is 13...Kb8!?+/–) 14.Nf5!+– Kb8 (14...gf5 15.Bf5 Double attack) 15.Ne7 Qe7 16.Nd2 Rg7?? (16...Rde8+–) 17.Rae1 Qd7 (17...Qf8 18.Bf6 Rg8 19.Bd8 Qd8 20.Re4+–) 18.Bf6 (18.Bf6 Bg8 19.Qc3+–) 1–0. typ48 – hollymen, internet, 2013.

6.Qa4 Ngf6 7.Nf3 Ne4 8.de5+= de5 9.Be5 b5? 10.cb5+/– Nb6 11.Qc2 Bb4+/– 12.Nfd2 0-0 13.Nc3 Nf2?? 14.Kf2+– f4 15.ef4 Rf4 16.Bf4 Qf6 17.Nce4 Qf4 18.Nf3 Rf8 19.Bd3 Nd5 20.Rhe1 Qh2? 21.Neg5 Bd6 22.Re6 Bg3 23.Ke2 Qg2 24.Kd1 Qh1 25.Ne1 Qh5 26.Ngf3 Be1 27.Re1 Rf3 28.Kc1 Ne3 29.Qc7 Qg5 30.Kb1 Rf7 31.Qc8 (31.Qc8 Rf8 32.Qe6 Kh8 33.Qe3+–) 1–0. Mooiste – van Italie, TN.94.6.154 corr, 1993.

6.Nc3 Ngf6 7.d5 Bf7 8.Qc2 g6 9.e4 f4 (9...fe4 10.Ne4 a5 11.Nf6 Nf6 12.ba5=) 10.f3 (10.Nf3 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 c6+=) 10...Bg7= 11.0-0-0 Nh5 12.Bd3 Qh4 (12...0-0 13.Nge2=+) 13.Rf1 (13.c5!?=) 13...Ng3 14.hg3 Qh1 15.gf4 (15.Nb5 Kd8 16.Nh3 Qh2 17.gf4 a5 18.ba5 Nc5 19.fe5 Be5 20.Be5 de5=+) 15...Qh6 (15...ef4 16.Nh3 Qh2 17.Nb5 Bb2 18.Qb2-/+) 16.Nh3 (16.Nce2!?=+) 16...ef4-/+ 17.Ne2 (17.Rh1 c6-/+) 17...Bb2-+ 18.Qb2 Ne5 19.Qd2 g5 20.Rh1 Qf6 21.Kc2 0-0-0 22.Nf2 h5 Black plans g4 23.Qc3 Qe7 24.Kb3 Kb8 25.Bc2 (25.Nd4 Rhe8-+) 25...Rc8 26.Nd4 (26.Nd3 c6 27.Ne5 de5-+ (27...Qe5?! 28.Qe5 de5 29.Rd1-/+)) 26...g4 (26...c6 27.Qd2-+) 27.Bd1 (27.Nd3 Qg5-+) 27...gf3 28.gf3 Rhg8 (28...c6 29.Qd2-+) 29.Nh3 (29.Nf5 Qd7-+) 29...Qf6 30.Nf5 c6 31.Nf4 cd5 32.Qd2 (32.Nh5 Qg6 33.Qc2 Nc4 34.Qh2-+) 32...Nc4 33.Qd4 Qd4 (better 33...Qg5!? 34.Ne2 Nd2 35.Ka3 Nf3 36.Qf2-+) 34.Nd4 de4 35.fe4 Ne3 36.Kb2 Nd1 37.Rd1 Rg4 38.Nde6 Be6 39.Ne6 Re4 40.Rd6 Re2 (40...Rb4!? 41.Ka3 Re4 42.Ng5 Re3 43.Kb2-+) 41.Kb3 a6 (41...h4 42.Nc5 Rh8 43.a4-+) 42.Nf4 (42.Nc5 h4 43.Rh6 Re3 44.Kc4 h3-+) 42...Re3 43.Kb2 h4 44.Rh6 (44.Rd2 Re4 45.Nd5 Rd8-+) 44...Rf8 (better 44...Re4 45.Nd5 Rd8-+) 45.Nd5 (45.Rh4 Re4 46.Ng6 Rh4 47.Nf8 Rb4 48.Kc3-+) 45...Rf2 46.Kc1 Re1 0-1. dannysmet (1995) - Acharon (1990), Rated Blitz game, lichess.org, 2020.

6.Nd2 ed4 7.Bd4 (7.ed4 d5 8.c5 a5 9.ba5 Ngf6 10.Nh3) 7...Ngf6 8.Nh3+= (8.Ngf3 Ne5 9.Ng5 Bd7 10.Be2) 8...Qe7 9.Qa4 Ng4 10.Nf4.

6.Nd2 Be7 A) 7.Ngf3 Nh6 8.de5 Ne5 9.Qa4 Bd7 10.Qb3; B) 7.Be2 Nh6 (7...c6 8.Ngf3 Nh6 9.0-0 0-0 10.e4; 7...a5 8.Ngf3 ab4 9.de5 de5 10.0-0) 8.d5 Bf7 9.Ngf3 0-0 10.0-0; C) 7.d5 Bf7 8.Ngf3 a5 9.a3 Ngf6 10.Be2.

6.Nd2 g6 7.de5 (7.Nh3 a5 (7...Ngf6 8.Ng5 Bf7 9.Be2 Bh6 10.Nf7) 8.ba5 (8.b5 Ngf6 9.Ng5 Qe7 10.g3) 8...Nh6+= 9.Qb3 Ra5 10.de5; 7.Ngf3 Bg7 8.h4 Ngf6 9.Ng5 Qe7 10.Be2; 7.Qa4 Bg7 8.d5 Bf7 9.Ngf3 a5 10.Be2; 7.Qb3 Bg7 (7...Nh6 8.Ngf3 Bg7 9.d5 Bf7 10.Be2) 8.Ngf3 Ngf6 9.Ng5 Qe7 10.Be2) 7...de5= (7...Ne5? 8.f4 Nf7 9.Bh8 Nh8 10.Ngf3+–) 8.a3 (8.Qa4 a5 9.ba5 Ngf6= 10.Ngf3) 8...Qe7 (8...Nh6 9.Ngf3 Bg7 10.Bd3) 9.Ne2 (9.Ngf3!?= Bg7 10.Be2) 9...Bg7 (9...Ngf6 10.g3=+ (10.Qa4=+)) 10.Qc2 (10.g3 0-0-0=+) 10...Ngf6 11.Rd1 (11.g3 0-0-0=+) 11...0-0 (better 11...a5 12.ba5 f4 13.ef4 ef4–/+) 12.Ng3? (better 12.g3=+) 12...f4–+ 13.ef4 Bg4?? (better 13...ef4 14.Nge4 Bf5 15.Bf6 Nf6–+ (15...Bf6?! 16.Bd3–/+; 15...Rf6?! 16.c5–/+)) 14.f3=+ ef4 15.Nge4 Ne4 (15...Be6 16.Bd3 a5 17.ba5 Ne4 18.Be4 Ra5 19.Nb3=+) 16.Ne4 Qh4 17.Kd2 Bb2 18.Qb2 Bf5 (18...Qe7 19.Bd3 Be6 20.Kc1=+) 19.Kc1 (19.c5 Be6=) 19...Qe7 (19...Be4 20.fe4 Qe7 21.h4=+) 20.Bd3=+ a5 (20...Ne5 21.Qc3=+) 21.Rhe1 ab4 22.ab4 Ne5 23.Nc5 (23.Nf6 Rf6 24.Re5 Qf7 25.Bf5 Rf5= (worse 25...gf5 26.Rdd5+=)) 23...Nd3–/+ 24.Nd3 Qd6 (24...Qf7!? 25.Qb3 Ra1 26.Kb2 Qf6 27.Ne5 Rd1 28.c5 Be6 29.Qd1 Rd8–/+) 25.Nc5= Qf6 (25...Qc6 26.Re7 Rf7 27.Rde1=) 26.Qf6 Rf6 27.Kb2 Kf8 (27...b6 28.Nb3=) 28.Nd7 (28.Re2 b6 29.Nd7 Bd7 30.Rd7 Rf7=) 28...Bd7= 29.Rd7 Rf7 30.Red1 (30.Rd4 Re8 31.Re8 Ke8=) 30...Re8 (30...Re7 31.R1d4=) 31.Rf7+= Kf7 ½–½. Suess,Stefan – Dvorak, corr, 1985.

6.Nd2 Nh6 7.Ngf3 (7.d5 Bf7 8.Ngf3 Be7 9.Be2 0-0 10.0-0) 7...Be7 8.de5 Ne5 9.Qa4 Bd7 10.Qb3.

6.de5 Ne5 7.Nd2 Nf6 8.Ngf3 Nf3 9.Nf3 Be7 10.Nd4 Bd7 11.Bd3 c5 (11...d5!? 12.Qb3 c5 13.bc5 Ne4 14.Be4 de4+=) 12.Nf5+/– Bf5 13.Bf5 cb4 14.Qa4 Kf7 15.Qb4 d5 16.c5 b6 17.Bd4 Nd7 18.Qb3 Nf6? (better is 18...Nc5 19.Qb2 Bf6+/–) 19.cb6+– ab6 20.Qb6 (20.Bb6 Qb8 21.Qb1 g6+–) 20...Qb6 21.Bb6 Bb4 22.Ke2 Bc3 23.Rac1 Ra2 24.Kf3 Be5 25.Bd4 Bd4 26.ed4 (26.Rc7!? Kf8 27.ed4+–) 26...Re8+/– 27.Rhe1 Re1 28.Re1 Ra3 29.Re3 Ra7 30.g4 g6 (30...g5!?+/–) 31.Be6+– Kg7 32.g5 Ne4 33.Bd5 Ng5 34.Kg4 h6 35.h4 Rd7 36.hg5 h5 37.Kf4 (better is 37.Kh4!? Rd5 38.Re4+/–) 37...Rd5+= 38.Ke4 Rg5 39.d5 Rf5 40.d6 Rf2? (better is 40...Kf7 41.f4 h4=) 41.d7+– Rf8 42.Kd5 Rd8 43.Kd6 h4 44.Ke7 Rd7 45.Kd7 Kf6 46.Kd6 Kf5 47.Kd5 g5 48.Rf3 Kg4 49.Ke4 h3 50.Rf1 h2 51.Ke3 Kg3 52.Rf3 Kg2 53.Rf2 Kg1 54.Kf3?? (better is 54.Rd2=) 54...h1Q–+ 55.Ke3 Qh3 56.Ke2 (56.Rf3 g4 57.Rh3 gh3–+) 56...Qe6 (56...Qe6 57.Kf3 Qf5 58.Ke3 Qf2 59.Ke4 g4–+) 0–1. kaasparov – fulzbych, internet, 2013.

6.Nf3 d5 7.cd5 Bd5 8.de5 Bb4 9.Bc3 Bc3 10.Nc3 +=.

6.Nf3 e4 7.Nfd2 Ngf6 8.Nc3 c6 9.Rc1 a6 10.a4 Be7 11.g3 0-0 12.c5 dc5 13.bc5=+ b6 14.cb6 Nb6 15.Ncb1 Qd7 16.Ba3 Rfc8 17.Be2 Ba3 18.Na3 c5 19.a5 Na4 20.dc5 Nc5 21.Ndc4=+ Qc7 22.0-0 Rd8 23.Qc2 Nd3–/+ 24.Nb6 Qe7 25.Ra1 Ra7–/+ 26.Rfd1 Rc7 27.Qa4 Rc3 28.Nac4 Bc4 29.Nc4 Qc5 30.Nb2=+ Qc7 31.Rd2= Rc1 32.Rc1 Qc1 33.Qd1 Qc3 34.Nd3+= ed3 35.Rd3+/– Rd3 36.Qd3 Qa5 37.Qa6 Qa6 38.Ba6 Kf7 39.Bc8 g6 40.Kg2 Ne4 41.h4 h5 42.Bb7 Nc5 43.Bd5 Kf6 44.Bc6 Nd3 45.Be8 ½–½. Wilk,Krzysztof (1890) – Bylica,Michal (2000), Poland–chT2 U18, 1996.

6.Qh5 g6 7.Qd1 Bg7 8.f4 ef4=+ 9.ef4 Ne7 10.Qc2 Nc6 11.Bc3?? Bd4 12.b5=+ Bc3 13.Qc3+= Ke7? 14.bc6+– bc6 15.Nf3 Nc5 16.Nd4 Ne4? 17.Nc6+– Kd7 18.Nd8 Nc3 19.Ne6 Ke6 20.Nc3 a5 21.Na4 c6 22.c5 d5 23.Be2 Rhe8 24.0-0 Kd7 25.Nb6 Kc7 26.Na8 (26.Na8 Ra8 27.Rfe1+–) 1–0. bentengutama – nickbarletta (1880), net–chess.com, 2002.

7.Qa4 Ngf6 8.Ne2 Be7 9.Ng3 Bg6 10.h4 f4 11.ef4 ef4 12.Ne2 Nh5 13.Nd4 Bf6 (13...Bh4 14.Ne6 Qe7 15.Rh4 Qh4 16.Nc7 Kd8 17.Na8 Re8 18.Be2–+) 14.Ne6? (14.Be2 Qe7 (14...Bh4? 15.Ne6 Qe7 16.Nc7 Kf7 17.Na8+–) 15.Qa3 Bd4 (worse is 15...Bh4 16.Ne6+/–) 16.Bd4 a5+=) 14...Qe7?? (14...Bb2!? 15.Nd8 Kd8 16.Qb3 Ba1 17.Bd3–+) 15.Qb3 (15.Nc3!? Bf5 16.Kd1 Be6 17.de6 Qe6 18.Be2=) 15...Bf7 16.Be2 Be6 17.de6 Qe6 18.Kd1 Qf7 19.Nc3 0-0 20.Bf3 c6 21.Ne4 Rad8 22.Bf6 Nhf6–/+ 23.Ng5 Qe7 24.Re1 Ne5 25.c5 d5 26.Qc3 Rfe8 27.Kc2 h6 28.Nh3 Qe6 29.Re2? Qf5 30.Kd1 Kh8 31.Qc2 Ne4 32.Be4 de4 33.Rd2 Qg4 34.Kc1 Nd3 35.Kb1 Qg2 36.Ng5 hg5 37.hg5 Qg5 38.f3 Qd5 39.Qc3 e3 40.Rg2 Ne5 41.Kc2 Qd3 42.Qd3 Nd3 43.Rag1 Rd7 44.Re2 Nb4 45.Kc3 Nd3 0–1. Sebastian Enesco,Alex (1780) – Camarero Izquierdo,Juan C (1915), San Sebastian De Los Reyes ESP, 2011.

7.b5 Be7 A) 8.Nc3 Ngf6 9.Nf3 Nc5 10.Be2 0-0 11.0-0; B) 8.Be2 Nc5 (8...Ngf6 9.Nc3 0-0 10.Nf3 Nc5 11.0-0) 9.Nc3 Nf6 10.Nf3 0-0 11.0-0; C) 8.Nf3 Nc5 (8...Ngf6 9.Nc3 Nc5 10.Be2 0-0 11.0-0) 9.Nc3 Nf6 10.Be2 0-0 11.0-0.

7.b5 Ngf6 8.Nc3 (8.Nf3 Nc5 (8...Be7 9.Nc3 0-0 10.Ng5 Nd5 11.Nf7) 9.Nc3 Nfe4 10.g3 Qf6 11.Bh3; 8.Nh3 Nc5 (8...Be7 9.Nc3 Nc5 10.Be2 Nfe4 11.0-0) 9.Nc3 Be7 10.Be2 Nfe4 11.0-0) 8...g6 (8...Nc5 9.Be2= (9.Nf3 Be7 10.Ng5 Bh5 11.Be2) 9...Be7 10.Nf3 0-0 11.0-0; 8...Be7 9.Nf3 0-0 10.Ng5 Nd5 11.Nf7; 8...a6 9.Nf3 ab5 10.cb5 Nc5 11.Bc4) 9.Nf3 h6 (9...Bg7 10.Be2= (10.Ng5 0-0 11.Nf7) 10...0-0 11.0-0; 9...Bh6 10.Be2 0-0 11.0-0) 10.Be2 Bg7 11.Qc2 (11.0-0 0-0=) 11...Nc5 (11...a6 12.a4=) 12.a4 (12.0-0 0-0=) 12...0-0 (12...Qe7 13.0-0=) 13.0-0 Qe8 Black intends e4 (13...a6 14.Rfd1=) 14.Rfd1 g5 Black prepares f4 (14...e4 15.Nd2=) 15.Ne1 (15.Ba3 Nce4+=) 15...Bg6= 16.Bd3 (16.f3 g4=) 16...e4 17.Bf1 Ng4 (17...f4 18.a5=+) 18.Ne2 (18.Be2 Qe5 19.Bg4 fg4=) 18...f4 19.Bg7 Kg7 20.ef4 gf4 21.h3 (21.Qc3 Qe5 22.Nd4 Rfe8=+) 21...Ne5 (21...e3 22.Qc3 Qe5 23.hg4 ef2 24.Kh2 fe1B 25.Re1–/+) 22.Qc3=+ Kh7 (22...Bh5 23.a5=+) 23.Nd4 Qe7 (23...Qf7=+) 24.f3 (better 24.a5!?=+) 24...e3–/+ 25.Ra2 (25.Be2 Rg8–/+) 25...Rae8 26.Nb3 (26.Be2 Rg8–/+) 26...Ncd7 (26...Qg7 27.Kh1–+) 27.Be2 (27.Qa5–/+) 27...Qf6 (27...Qh4 28.Qa5=+) 28.Qd4 (28.Qa5!?=+) 28...b6–/+ 29.Nd3 (29.a5 Nc5 30.Nc5 bc5–/+) 29...Bd3 (29...Nd3 30.Bd3 Qd4 31.Bg6 Kg6 32.Nd4=+) 30.Bd3=+ Nd3 (30...Kg8 31.Kh1–/+) 31.Qd3 Kh8 (31...Qg6 32.Qe2=) 32.Re2 (32.a5 Ne5 33.Qe2 Rg8=) 32...Rg8=+ 33.Kh1 (33.Qc2 Rg3=+) 33...Rg3 (33...Ne5 34.Qd4=+) 34.Nd4 Re5 (34...Nc5 35.Qc3=+) 35.Ne6 (35.Qc2 Nc5=) 35...Nc5 36.Nc5 bc5 37.Kh2 Qh4 38.Rh1?? (better 38.Kh1=) 38…Rh3 (38...Rh3 39.gh3 Qg3) 0–1. Nemeth,Laszlo – Dekany,Lajos, Matra Cup Gyongyos, 2002.

7.Nc3 Ngf6 8.Bd3 g6 9.Nge2 Bg7 10.Qc2 c6 11.0-0 cd5 12.cd5 Rc8 13.Qa4 Qb6 14.Bb5 Ke7 15.Bd7 Nd7 16.Qb5?? Rc7 17.a4 a6 18.a5?? Qb5–+ 19.Nb5 ab5 20.Nc3 Rhc8 21.Nb5 Rc2 (21...Rc2 22.Na7 Ra8 (22...Rb2?! 23.Nc8 Kf8 24.Rfd1=+) 23.Nc6 bc6 24.dc6 Rb2–+) 0–1. gtate (2020) – bumeyou (2170), net–chess.com, 2006.

7.Nc3 Ngf6 8.Nge2 Be7 (8...a5 9.b5=) 9.Qc2 (9.Ng3!?+=) 9...Bg6= 10.f3 0-0 11.Ng3 (11.f4!?=+) 11...f4-/+ 12.Nge4 fe3 13.Bd3 Kh8 (13...Ne4 14.Be4 Be4 15.Ne4-/+) 14.Qe2 Ne4 15.Ne4 Bg5 16.Bc1 Bf4 17.Be3 Be4 18.Be4 Qh4 (18...Be3 19.Qe3 a5 20.b5=) 19.Bf2 Qh6 (19...Qh5 20.g3 Bg5 21.c5=) 20.h3 Nf6 21.0-0 Rf7 22.Bc2 Nh5 23.Rad1 Bg3 24.Qd2 g5 (24...Bf2!? 25.Rf2 Nf4=+) 25.Bg3+= Ng3 26.Rfe1 Qh4 27.Qf2 (27.c5 Kg8+=) 27...b6 (27...Qc4 28.Bh7 Qb4 29.Qg3 Rh7 30.Qg5 Qc5 31.Qe3=) 28.Be4 (28.Kh2 Nf5 29.Qh4 Nh4+=) 28...Raf8 (28...a5 29.Kh2 Ne4 30.Qh4 gh4 31.Re4 ab4 32.Rd2=) 29.Qe3 (29.Kh2!? Nf5 30.Qh4 Nh4 31.Rd3+=) 29...Rf4 (better 29...Ne4 30.fe4 Rf3=+) 30.c5 (30.Bd3 g4 31.fg4 Rg4=) 30...h5 Black prepares g4 (30...g4 31.Qf2 gh3 32.gh3 Qh3-+ (32...Re4?! 33.Re4 Qh3 34.Qg2 Qg2 35.Kg2 Ne4 36.fe4-/+)) 31.Rd3 g4 32.hg4?? (32.fg4 Ne4 33.cd6 cd6 34.gh5-+) 32...hg4-+ (32...Ne4?! 33.fe4 Qg4 34.c6+=) 33.Red1 (33.Ra3 Qh1 34.Kf2 Ne4 35.Ke2 Qg2 36.Kd1 Nf2 37.Kc1 Qf3 38.Qf3 Rf3 39.Rf3 Rf3 40.Kc2-+) 33...Qh1 (33...Re4 34.Kf2 gf3 35.Ke1 Re3 36.Kd2 fg2 37.a3 Qc4 38.Rh1 gh1Q 39.Re3 Qhc1) 34.Kf2 Qh4 (34...Ne4 35.Qe4 g3 36.Ke3 Qg2 37.Rh1 Qh1 38.Kd2 Re4 39.f4 Qe1 40.Kc2 Rc4 41.Kb2 Qe2 42.Kb3 Qd3 43.Ka4 Rb4 44.Kb4 Rf4) 35.Kg1 gf3 (better 35...Re4 36.Kf2 Nf5 37.Ke2 gf3 38.Kd2 Ne3-+) 36.Bf3 e4 37.Qd4 Qf6 (37...R8f6 38.Qe3 ef3 39.Qe8 Rf8 40.Qf8 Rf8 41.Rf3 Ne2 42.Kf1 Rf3 43.gf3 Qh2 44.Ke1 Ng3 45.cb6 Qe2) 38.Qf6 R8f6 39.Be4 (39.Kf2 Nf5 (39...ef3?! 40.Kg3 fg2 41.Kg2=+; worse 39...bc5 40.Kg3 ed3 41.bc5-+) 40.cb6 ab6-+ (40...ef3 41.ba7 fg2 42.Kg1-/+; 40...cb6?! 41.g3 Rf3 42.Rf3 ef3 43.Kf3-+)) 39...Ne4 (worse 39...Re4 40.Rg3 Rb4 41.c6+=) 40.Rh3 Kg7 41.cb6 cb6 42.Rc1 Ng5 43.Rc7 Rf7 44.Rf7 Rf7 45.Rg3 Kf6 46.Rc3 (46.Re3 Rc7-+) 46...Ne4 (46...Ke5 47.Rd3-+) 47.Rc6 (47.Rf3 Kg6 48.Re3 Nf6-+) 47...Ke5 48.a4 Kd5 49.Rc8 Kd4 50.a5 (50.Kh2 d5 51.a5 ba5 52.ba5 Ke3-+) 50...ba5 51.ba5 d5 0-1. dannysmet (2000) - masstrash (2035), Rated Blitz game, lichess.org, 2020.

7.Bd3 e4 A) 8.Bf1 A1) 8...a5 9.a3 (9.ba5 c6 10.Ne2 Qa5 11.Nbc3 Be7 12.dc6) 9...Ngf6 10.Nh3 ab4 11.ab4 Ra1 12.Ba1; A2) 8...c6 9.Ne2 (9.Nc3 Ne5 10.Nh3 Qb6 11.a3 Nf6 12.Be2; 9.dc6 bc6 10.Nd2 Ne5 11.Bd4 Nf6 12.Nh3; 9.Nh3 Ngf6 10.Ng5 Bg8 11.dc6 bc6 12.a3) 9...Ngf6 10.dc6 bc6 11.Nd4 Qb6 12.b5; A3) 8...Ngf6 9.Ne2 (9.Qa4 a5 10.ba5 Ra6 11.Nd2 Be7 12.Qb4; 9.Be2 c6 10.dc6 bc6 11.a3 d5 12.cd5; 9.Nh3 Be7 10.Be2 a5 11.b5 Nc5 12.0-0) 9...a5 10.b5 Nc5 11.Ng3 g6 12.Bd4; B) 8.Be2 B1) 8...a5 9.a3 (9.b5 Qg5 10.Bf1 Ngf6 11.Nh3 Qh4 12.Be2) 9...ab4 10.ab4 Ra1 11.Ba1 Qg5 12.Bf1; B2) 8...Ngf6 9.Nh3 (9.a3 b5 10.cb5 Nd5 11.Nh3 Qh4 12.Qc1) 9...a5 10.a3 Ne5 11.Nf4 Be7 12.0-0; B3) 8...Qg5 9.Bf1 Ngf6 10.Nh3 Qh4 11.Nc3 c6 12.dc6.

7.Bd3 Ne7 8.Qa4 a6 (8...a5 9.b5=+ (9.Nc3 ab4 10.Qb4 c6 11.Nh3 cd5 12.cd5; 9.Ne2 e4 10.Bc2 c6 11.dc6 Nc6 12.Nd2) 9...c6 10.dc6 Nc5 11.Qd1 bc6 12.Be2; 8...c6 9.dc6 Nc6 10.a3 Qg5 11.g3 Nb6 12.Qc2) 9.Nc3= (9.e4 b5 10.cb5 fe4 11.Be4 Bd5 12.Bd5; 9.Na3 b5 10.cb5 Bd5 11.Bf1 ab5 12.Qb5) 9...c6 (9...a5 10.Nge2= (10.b5 Nc5 11.Qc2 Nd3 12.Qd3) 10...c6 11.0-0 e4 12.Bb1) 10.dc6 bc6 11.a3 (11.Nh3 a5 12.Ng5) 11...Nb6 (11...a5 12.b5=) 12.Qb3=. Fischer,Detlev – Hroch, corr EU–II–768, 1981.

7.Bd3 Ne7 8.Nh3 A) 8...c6 9.Ng5 (9.dc6 Nc6 10.a3 e4 11.Be2 a5 12.Bh5) 9...Bg8 10.Ne6 Be6 11.de6 Nf6 12.Qb3; B) 8...Nb6 9.Ng5 (9.Nd2 e4 10.Be2 c6 11.dc6 Nc6 12.a3; 9.0-0 c6 10.Ng5 e4 11.Be2 Bg8 12.Ne6; 9.a4 a5 10.ba5 Nd7 11.0-0 Nc5 12.Bc3) 9...Bg8 10.Ne6 Be6 11.de6 Nc6 12.b5; C) 8...a5 9.b5 (9.a3 ab4 10.ab4 Ra1 11.Ba1 Nb6 12.0-0) 9...Nc5+= 10.0-0 c6 11.dc6 bc6 12.Be2.

7.Bd3 Qg5 A) 8.g3 A1) 8...e4 9.Be2 Ngf6 10.Nh3 Qh6 11.Nf4 Be7 12.Nc3; A2) 8...Ngf6 9.Nf3 (9.Nc3 e4 10.Be2 0-0-0 11.Qa4 Kb8 12.h4; 9.Na3 e4 10.Be2 c6 11.dc6 bc6 12.Qa4) 9...Qh5 10.Be2 Qh6 11.Qc2 a5 12.ba5; A3) 8...Bh5 9.Qa4 (9.f4 Qg6 10.Be2 Ngf6 11.Bh5 Nh5 12.Nc3; 9.Be2 Be2 10.Ne2 Ngf6 11.Na3 Qg4 12.0-0) 9...e4 10.Be2 Ne7 11.Bd4 c6 12.Nc3; B) 8.Kf1 B1) 8...Be7 9.Nc3 (9.Nd2 Bh5 10.Nh3 Qh6 11.Qc2 e4 12.Be2; 9.Qa4 Ngf6 10.Nf3 Qh5 11.Be2 Qh6 12.Qb5; 9.h4 Qf6 10.h5 a5 11.Qa4 Kd8 12.a3) 9...Bh5 10.Nf3 Qf6 11.Nb5 Kd8 12.Be2; B2) 8...e4 9.Nh3 (9.Be2 Ngf6 10.Nh3 Qh4 11.Nc3 c6 12.dc6) 9...Qh4 10.Be2 Ngf6 11.Nc3 c6 12.dc6; B3) 8...Qg6 9.Nc3 c6 10.e4 f4 11.Nf3 Ne7 12.Kg1; B4) 8...Bh5 9.Qa4 (9.Be2 Be2 10.Qe2 c6 11.Nf3 Qg6 12.Nc3; 9.Nh3 Qh4 10.Qe1 Ngf6 11.f3 Qe1 12.Ke1 e4) 9...Ne7 10.Nd2 c6 11.Ngf3 Qg6 12.dc6; C) 8.Nf3 Qg4 9.Bf1= Ngf6 10.h3 Qg6 11.Qc2 Ne4 12.g4.

7.Bd3 g6 8.e4 fe4 9.Be4 Ngf6 10.Nd2 Bg7 11.Ngf3 0-0 12.0-0 Nh5 13.Qc2 Qe7 14.Rfe1 Rae8 15.Nf1 Bh6 16.Ng3 Nf4 17.c5 (17.Ne2!?+=) 17...b6 (17...Nf6 18.Rad1–/+) 18.c6 Nf6 d5 becomes the focus of attention 19.Rad1 Ng4 (better is 19...N4d5!? 20.b5 Ne4 21.Ne4 Ra8+=) 20.Bc1 Kg7 21.Ne2 Bg8 22.Nf4 Bf4 23.Bf4 Rf4 24.h3 Nh6 25.g3 Rf7 26.Qd2 Ref8 27.Qe3 Nf5 28.Qg5 Nd4 29.Rd4 (better is 29.Qe7!? Nf3 30.Bf3 Re7 31.Be4+=) 29...ed4+= 30.Qe7? (better is 30.Qd2 Qf6 31.Re2+=) 30...Re7–+ 31.Nd4 Bd5! 32.f3 (32.Bd5 Re5 Double attack (32...Re1 Pinning; 32...Re1 Deflection; 32...Re5 Decoy)) 32...Rfe8 (worse is 32...Ba2 33.Ra1 Bc4 34.Ra7–+) 33.Kf2 Be4 (33...Re4?! 34.fe4 Be4 35.b5+=) 34.fe4 Re4 35.Re4 (35.Rd1–+) 35...Re4 36.Nc2 Rc4 37.Ne3 Rc6 0–1. kaasparov (1620) – sali16, internet, 2013.

7.Be2 Ngf6 8.f3 Be7 (8...c6 9.dc6 bc6 10.a3-/+) 9.Nh3=+ 0-0 10.0-0 c5 (10...c6!? 11.dc6 bc6-/+) 11.b5= a6 12.a4 ab5 13.ab5 Ra1 14.Ba1 Qa8 15.Nc3 Qa3 16.Nf2 Ra8 17.Qc1 (17.Qc2 Bg6+=) 17...Nb6 18.Qb2 Bd8 19.Rc1 Qb2 20.Bb2 Na4 21.Ra1 Nb6 22.h3 Ra1 23.Ba1 e4 (better 23...Nh5=) 24.fe4+/- fe4 25.Nfe4 (25.Nce4!? Ne8+-) 25...Be7+/- 26.Nd2 Nbd7 27.g4 Bg6 28.Kf2 Ne5 29.e4 Kf8 30.Kg3 Ke8 31.Bf3 (31.Nf3 Nf3 32.Kf3 Nd7+/-) 31...Kd7 (31...Nfd7!?+=) 32.Ne2 Nf3 (32...Ng8!?+/-) 33.Kf3+- (33.Nf3?! Be4 34.Nd2 Bc2=) 33...Kc7 34.Bc3 b6 35.g5 (35.Ng3 Ne8+-) 35...Nh5 36.Kg4 Kd7 37.Nf4 (37.Ng1!? h6 38.h4 Bd8+-) 37...Nf4+/- 38.Kf4 Bf8 39.e5 de5 40.Be5 Bd3 41.h4 Bd6 42.Bd6 Kd6 43.h5 ½-½. Darkseid (1805) - Zahni (1865), ChessWorld.net, 2006.

7.Nf3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Be7 11.Nc3 Nh6.

7.Nf3 c6= A) 8.dc6 bc6 9.Nc3 Ngf6 10.Qc2 Be7 11.Qf5 Qb6; B) 8.Be2 Ngf6 (8...Qb6 9.dc6 bc6 10.b5 Ngf6 11.Nc3 Be7) 9.Nc3 Qb6 10.dc6 bc6 11.b5 Be7; C) 8.Nc3 Qb6 (8...Ngf6 9.Ng5 Nd5 10.Nf7 Nc3 11.Qc2 Kf7) 9.a3 Ngf6 10.Ng5 a5 11.Na4 Qa7.

7.Nf3 Be7 8.Nc3 a5 9.a3 Ngf6 10.Be2 0-0 11.0-0.

7.Nf3 Ngf6 8.Nbd2 Be7 9.Bd3?? e4–+ 10.Nd4 ed3 11.Nf5 0-0 12.g4 Ne5 13.g5 Nh5 14.f4 Nd7 15.Ne4 Bg6 16.Neg3 Ng3 17.Ng3 Nb6 18.Qb3 Qe8 19.a4 Bg5! 20.Kd2 Bf6 21.Rhg1 Bb2 22.Rae1 Qa4 (23.Qa4 Na4–+) 0–1. Frantz,JW – Aldrich,Justin, Detroit Amateur North op–B, 1999.

7.Nf3 Ngf6= 8.Ng5 Nb6 9.Nc3 a5 10.ba5 Ra5 11.Bd3.

7.Nf3 Nh6 8.Nc3 Be7 (8...a5 9.a3 Be7 10.Be2 0-0 11.0-0) 9.Be2 0-0 10.0-0 a5 11.a3.

6.d5 Bd7 7.Ne2 Nf6 8.Nbc3 Be7 9.Nf4 0-0 10.Be2 c6 11.0-0 cd5 12.Ncd5 Nd5 13.Nd5 Bc6 (13...Nc6 14.b5 Ne5 15.Qd4+/–) 14.Rc1 (14.Qd4 Bf6 15.Nf6 Rf6+–) 14...Bd5 15.Qd5 (15.cd5?! Nd7+=) 15...Kh8 16.Qb7 Nd7 17.a3 Ne5 (17...a5 18.b5+–) 18.Rfd1 Qb6?? (18...Bf6 19.Bd4+–) 19.Qd5 White prepares the advance c5 (better is 19.Qe7 Nf7 20.Rd5+–) 19...Rfd8 (19...Nc6 20.Rc2+–) 20.c5 (better is 20.Qe6 Bf6 21.Qf5+–) 20...Qc6?? (better is 20...dc5 21.Qe5 Bf6 22.Qf5 Bb2 23.bc5 Qf6 24.Qf6 gf6 (24...Bf6?? 25.c6+–) 25.Rd8 Rd8+–) 21.Be5 (better is 21.Qc6 Nc6 22.cd6 Rd6 23.Rd6 Bd6 24.Rc6 Rd8+–) 21...Qd5 22.Bg7! Kg7 23.Rd5 dc5 24.Rd8 Rd8 25.bc5 Rd2?? (better is 25...Rc8!?+/–) 26.Ba6 (better is 26.c6 Bd6 27.c7 Bc7 28.Rc7 Kg6 29.Bf1+–) 26...Ra2? (26...Bd8+–) 27.c6 (27.c6 Bd8 28.c7 Bc7 29.Rc7 Kg6 30.Rc6 Kg7 31.Rc3 Ra1 32.Bf1+–) 1–0. polynesia46 – ultravioleta, internet, 2013.

6.d5 Bf7 7.Ne2 Nf6 8.Nd4 g6 9.Qa4 Qd7 10.Qd7 Nbd7 11.Ne6 Rc8 12.c5 (12.Nf8 Rf8 13.Bd4 b5+=) 12...Be6 13.de6 Ne5 14.cd6 (14.Na3 Nd5 15.Nb5 Nb4 16.Rd1+=) 14...Bd6–/+ 15.Nd2 0-0 (better is 15...Ke7!?–/+) 16.a3= Rfe8 17.Nc4 Nc4 18.Bc4 (worse is 18.Bf6 Nb6–/+) 18...Be7 19.0-0 (better is 19.Rd1+/–) 19...Red8?? (19...c5 20.Rfc1=) 20.Rfd1 (20.Bf6 Kf8 21.Bc3 a6+–) 20...a6?? (20...Kf8 21.Bd4+=) 21.Rac1 (better is 21.Rd8 Rd8 22.Bf6+–) 21...Kf8+= 22.Be5 Ne8 (better is 22...Rd1!? 23.Rd1 b5=) 23.Rd7+/– Bd6?? (better is 23...c5 24.b5 ab5 25.Bb5 b6+/–) 24.Bd6 (better is 24.Rh7 Ng7 25.Bf6 Ne6 26.Be6 Ke8+–) 24...Nd6 25.e7 Ke8 1–0. kaasparov – ultravioleta, internet, 2013.

6.d5 Bf7 7.Ne2 Nf6 8.Ng3 g6 9.Nd2 Bg7= 10.Nb3 0-0 11.c5? Nbd7 12.cd6 cd6–/+ 13.Bc4 Nb6 14.Qe2 Rc8–+ 15.Nd2 Nc4 16.Nc4 Bd5 17.Na5 b6 18.Nb3 Bc4 19.Qd2 Bd3 20.Ne2?? Rc2 0–1. gtate (1870) – jongosbrongkos (2000), net–chess.com, 2003.

6.d5 Bf7 7.f3 Nd7 8.fe4 (8.Nd2 Ngf6=) 8...fe4 (8...Qh4 9.Kd2 fe4 10.g3=) 9.Nd2 Ngf6 10.Ne2 Ne5 (10...c6 11.dc6 bc6 12.Qa4=) 11.Nc3 (11.Ng3 Bg6+=) 11...Bg6 12.Qc2 Can e4 get defended? (12.Be2 c6=) 12...Nfg4 (12...c6 13.Qa4= (13.Nde4? Ne4 14.Ne4 Qh4 15.Qf2 Qe4-+)) 13.Nce4 Ne3 14.Qc3 (14.Qa4 c6 15.Be5 Be4 16.Ne4 Qh4 17.Ng3 de5=+) 14...N3g4 (14...Nf1 15.Kf1 Qh4 16.Kg1=+) 15.0-0-0 (15.Qh3 Be7=) 15...Qd7 (15...Be7 16.Be2 Nf6 17.Qe3=) 16.h3= Nf6 17.Nf6 gf6 18.Re1 Bh6 19.Qg3?? (better 19.g4=) 19...Qf5-+ 20.Kd1 (20.Bd3 Qd3 21.Qd3 Bd3 22.c5-+) 20...Qc2 21.Ke2 Qd2 0-1. zembelek (2065) - Nikk53 (1960), Rated Blitz game, lichess.org, 2014.

6.d5 Bf7 7.g4 Bg6 (7...fg4 8.Nd2 Nf6 (8...Nd7 9.Ne4 Ngf6 10.Ng5 Qe7 11.Ne2) 9.h3= g3 10.fg3 Nbd7 11.Ne2) 8.h4 (8.gf5 Bf5 9.Ne2 (9.Bh3 Qg5 10.Bf5 Qf5 11.Ne2) 9...Nf6+– (9...Qe7 10.Nd2 Nf6 11.Bf6) 10.Nd2 Be7 11.Ng3) 8...fg4+= (8...Nd7 9.h5 Bf7 10.h6 Qg5 11.hg7) 9.Qg4 Nf6 (9...Qd7 10.Qd1 Qe7 (10...Nh6 11.Bh3) 11.Nc3+= 0.42/9 (11.Nd2+=)) 10.Qe6+= Qe7 (10...Be7 11.Bf6) 11.Qc8 Qd8 12.Qb7 Nbd7 13.Qc6 (13.Na3 Rb8 14.Qa7 Ra8=) 13...Be7 (13...Rb8 14.Qa4 Be7 15.Ne2=) 14.Bh3 (14.Ne2!? 0-0 15.Nf4=) 14...0-0=+ 15.h5 (15.Be6 Kh8 16.Ne2 Rb8=+) 15...Be8–/+ 16.Be6 (16.Qa6 Qb8 17.Be6 Kh8 18.Bd7 Bd7=) 16...Kh8 17.Qa6 (17.Qb7 a5 18.h6 ab4 19.hg7 Kg7 20.Bd7 Bd7=) 17...Nh5 18.Nd2 Bf6 19.Bd7 Bb2 20.Be8 Qe8 (20...Re8? 21.Rb1 Qf6 22.Rh5+–) 21.Rb1 Bc3 22.Nh3 (22.Ne2 Bd2 23.Kd2 Rf2 24.Rbf1 Re2 25.Ke2 Ng3 26.Kd2 Nh1 27.Rh1–+) 22...Qg6–+ 23.Kd1 (23.c5 Rad8 24.Rb3 Bd2 25.Kd2 Rf5–+) 23...Qg4 24.Kc2 Bd2 25.Kd2 Rf3 26.Rbg1 (26.Qb7 Raf8 27.Qc7 Rh3 28.Rh3 Qh3–+) 26...Qf5 27.Rg5 Rf2 28.Ke1 (28.Nf2 Qf2 (worse 28...Qg5 29.Rh5 Qh5 30.Ne4–+) 29.Kd1 Qf3 30.Kc2 Qh1–+) 28...Qf3 29.Nf2 Qe3 30.Kd1 Qg5 31.Ne4 (31.Re1 Ng3 32.Qa3–+) 31…Qg4 (31...Qg4 32.Kc1 Qe4–+) 0–1. Ioannides,Milton (2075) – Campbell,Mark C (2005), BCF–chT3, 2008.

6.Nf3 Be7 7.a3 0-0 8.d4 e4 9.Nfd2 d5 10.Nc3 c6 11.b5 Kh8 12.Qb3 Qd7 13.c5 Qc8 14.bc6 bc6 15.Qa4 Nbd7 16.Ba6 Qc7 17.Ne2 Rfb8 18.Rb1 Nh5 19.Bc3 Rb1–/+ 20.Nb1 Rb8 21.Kd2 Nf8 22.Ba5=+ Qd7 23.Nbc3 Ng6 24.g3 ½–½. Schuenemann,Moritz – Trella,Thomas, GER–ch U12 Oberhof, 1999.

6.Bh5 g6 (6...Nh5 7.Qh5 g6 8.Qe2=+) 7.Be2= Nbd7 8.Nf3 Bh6 9.0-0 g5 (9...0-0 10.Qc2=) 10.d3 (10.d4 g4 11.Nh4 Ne4+=) 10...Qe7 11.Qa4 0-0 12.d4 e4 13.Nfd2 d5 14.cd5 Bd5 (14...Nd5 15.b5 N7b6 16.Qa5=) 15.Nc3 Nb6 16.Nd5 (16.Qa5!?+=) 16...Nfd5= (16...Na4?? 17.Ne7 Kf7 18.Nf5 Nb2 19.Nh6 Kg6 20.Ng4 Ng4 21.Bg4+–) 17.Qb3 c6 Black prepares the advance f4 (17...Qb4 18.Qb4 Nb4 19.Ba3=) 18.Nc4 (18.Ba3 Qe6+=) 18...Kh8 (18...Qb4!? 19.Qb4 Nb4=+) 19.a3 (19.b5 Qe6+–) 19...f4+= 20.ef4 (20.b5 Bg7+=) 20...gf4= 21.Ne5 Bg7 22.Qh3 Be5 (22...Qg5 23.f3 Ne3 24.fe4=+) 23.de5+= Qg5 (better 23...Qg7!? 24.Qg4 Qg4 25.Bg4 Nc4+=) 24.e6+– Kg8 25.Bh5 f3 26.g3 Nf6? (26...Qf5!? 27.Qh4 Na4+–) 27.Bf7+– Kg7 (27...Kh8 28.Qh5 Qg7 29.Qf5+–) 28.Rad1 (28.Bc1 Qe5 29.Bf4+–) 28...Nbd5+– 29.Rd5 (better 29.Rfe1!? Nf4 30.Qf1 Ne2 31.Kh1 Rf7 32.ef7 Kf7 33.Bf6 Qf6 34.Rd7 Kg8 35.Qh3+–) 29...cd5= 30.Rc1 (30.Bc1 Qe5 31.Bh6 Kh8 32.Bf4+– (32.Bf8?! Rf8 33.Qh6 Rc8=)) 30…e3 (30...Rf7 31.ef7 Rf8 32.Qe6 Rf7 33.h4+=). GuestKJQG – GuestQLSH, freechess.org, 2017.

6.a3 ab4 7.ab4 Ra1 8.Ba1 Nc6 (8...Nf6 9.d4=) 9.Qa4 (9.b5 Na5+=) 9...Bd7= 10.b5 Nce7 11.Be2 Nf6 12.d4 e4 13.Nfd2 g5 (13...d5 14.Nc3=) 14.g3 (14.0-0!?+=) 14...Bg7 15.Nc3 0-0 16.0-0 Qa8 17.Qa8 Ra8 18.Bb2 c6 19.Ra1 (19.bc6 bc6 20.f3 d5=) 19...Ra1 20.Ba1 d5 21.c5 (21.b6 f4=+) 21...Kf7 22.b6 (22.f3 cb5 23.Bb5 g4=+) 22...Ng6 Black prepares the advance f4 (22...f4 23.gf4 gf4 24.Nb3=+) 23.Nb3 (23.f4 ef3 24.Nf3 g4=) 23...Bc8 24.Bf1 f4 25.Bb2 fe3 26.fe3 Ne7 27.Bc1 Ng6 28.Kg2 (28.Kf2 Ng4 29.Kg2 Ke7=) 28...Nd7 29.Na4 h5 30.h3 Bh6 31.Be2 ½–½. kovacic (2240) – bancario (2185), ChessWorld.net, 2013.

6.b5 Nd7 7.d4 e4 8.Nfd2 Ngf6 9.Be2 Be7 10.d5+= Bf7 11.Nb3 0-0 12.Nd4+= g6 13.Nc3 Nc5 14.Na4 Na4 15.Qa4 Qd7 16.0-0 b6 17.Qc2 Ne8 18.f3 ef3 19.Bf3 Bf6 20.Ne6!+– Be6 21.de6 Qe6?? 22.Bd5 (22.Bd5 Ng7 23.Bf6 Rf6 24.e4+–) 1–0. b4_player – floryncd, gamecolony.com, 2007.

6.a4 a5 A) 7.b5 A1) 7...Qf6 8.d4 (8.Qc2) 8...e4 9.Nfd2 Ne7 10.Nc3 d5 11.Rc1 Qg5 12.Ne2+=; A2) 7...Nb6 8.Na3 (8.d3 Be7 9.Be2 Nh6 10.0-0 0-0 11.Bc3 Bf6 12.Nbd2=; 8.Qc2 Nf6 9.Be2 Be7 10.d4 e4 11.Ng5 Bc8 12.0-0+=) 8...Nf6 9.d4 e4 10.Ng5 Bc8 11.Be2 Be7 12.0-0+=; B) 7.Qb3 ab4 8.d4 e4 9.Nfd2 c6 10.Qb4 b6 11.Be2 Ngf6 12.Qb3=; C) 7.ba5 Bf7 (7...Be7 8.d4 Bf6 9.Be2 e4 10.Nfd2 Ra5 11.g4 g6 12.gf5+=; 7...Nh6 8.d4 e4 9.d5 Bf7 10.Nd4 Ra5 11.Be2 Qg5 12.0-0+=) 8.Be2 (8.Bc3 e4 9.Nd4 Nh6 10.d3 Nc5 11.de4 fe4 12.Nb3+=; 8.d4 e4 9.Nfd2 Ra5 10.d5 Qg5 11.Nc3 Bh5 12.Qc2+=) 8...e4 9.Nd4 Ne7 10.Bc3 Nc5 11.d3 d5 12.de4+=.

6.a4 Be7 7.Qc2 Bf6 (7...Rb8 8.Be2 (8.Nc3 a5 9.ba5 c6 10.Be2 Qa5 11.0-0 Nh6 12.d4=) 8...Nh6 9.0-0 0-0 10.d4 e4 11.Nfd2 c6 12.b5=; 7...Nh6 8.Be2 0-0 9.0-0 c6 10.a5 Rb8 11.Nc3 b6 12.ab6=) 8.Be2 (8.d4 c6 9.Be2 Ne7 10.0-0 a5 11.de5 de5 12.Rd1=) 8...Qe7 (8...c5 9.bc5 dc5 10.d4 e4 11.Nfd2 cd4 12.ed4=) 9.Nc3 (9.d4 e4 10.Nfd2 a5 11.b5 Nh6 12.0-0+=) 9...c6 (9...Nb6 10.e4 Nh6 11.Nd5 Bd5 12.ed5=) 10.0-0 e4 (10...Qf7 11.d3 Ne7 12.a5=) 11.Nd4 Bd4 12.ed4 Ngf6 (12...d5 13.c5=) 13.f3 d5 14.cd5 (14.fe4 fe4 15.b5 Rc8+=) 14...cd5= 15.b5 Nb6 (15...Qb4!?=) 16.Ba3. Neumann – Iden, corr, 1976.

6.a4 Be7 7.d4 A) 7...d5 8.cd5 Bd5 9.de5 Bb4 10.Bc3 Bc3 11.Nc3 Be4 12.Nd4+–; B) 7...Bf7 8.de5 (8.a5 e4 9.Nfd2 Ngf6 10.Be2 c5 11.b5 d5 12.0-0=; 8.d5 a5 9.b5 Nc5 10.Be2 Nf6 11.0-0 0-0 12.Ne1=) 8...de5 9.Qb3 Bd6 10.Bc3 Qf6 11.Qc2 0-0-0 12.c5+=; C) 7...Nh6 8.a5 (8.d5 Bf7 9.Be2 a5 10.b5 0-0 11.Nbd2 Bh5 12.0-0=; 8.Be2 d5 9.cd5 Bd5 10.de5 Bb4 11.Bc3 Bf3 12.Bf3=) 8...d5 9.cd5 Bd5 10.de5 Bb4 11.Bc3 Bc3 12.Nc3=.

6.a4 Qf6 A) 7.Nc3 a5 (7...Nb6 8.Qb3 0-0-0 9.d4 Nd7 10.Nd5 Bd5 11.cd5 e4 12.Rc1+=; 7...c5 8.Nb5 Kd8 9.bc5 dc5 10.Qb3 a6 11.Na3 Rb8 12.d4+=) 8.ba5 c6 9.d4 Ra5 10.Qb3 Ra7 11.Be2 e4 12.Nd2=; B) 7.Qb3 a5 8.ba5 (8.d4 ab4 9.Qb4 Ra7 10.d5 Bf7 11.a5 Ne7 12.Nc3+=) 8...Nc5 9.Qc2 Qe7 10.d4 ed4 11.Nd4 f4 12.ef4+=.

6.a4 Ngf6 7.d4 A) 7...Bf7 8.Be2 e4 9.Ng5 d5 10.c5 Be7 11.Nf7 Kf7 12.0-0+=; B) 7...Bg8 8.a5 (8.Nc3 e4 9.Nd2 d5 10.c5 Be6 11.Be2 Be7 12.a5=) 8...e4 9.Nfd2 d5 10.c5 Be6 11.a6 b6 12.c6+=; C) 7...c6 8.Be2 d5 9.c5 e4 10.Ng5 Bg8 11.b5 Rc8 12.0-0+=.

6.Nc3 a5 7.a3 Nh6 8.Be2 Be7 9.Nd5 0-0 10.0-0.

6.Nc3 Nb6 7.Qb3= (7.d3 a5 8.b5 Be7 9.Be2 Nh6 10.c5 Nd5 11.Nd5 Bd5=; 7.c5 dc5 8.bc5 Bc5 9.Ne5 Nf6 10.Bb5 c6 11.Nc6 bc6=) 7...a5 (7...Nf6 8.Be2 Ne4 9.Nd5 c6 10.Nb6 ab6 11.d3 Nf6+=; 7...e4 8.Nd4 Bd7 9.Be2 c5 10.Nc2 Nf6 11.a4 a5+=) 8.a3 Qe7 9.d4 ab4 10.ab4 Ra1 11.Ba1 Nf6+=.

6.Nc3 c5 7.bc5 dc5 8.d4 e4 9.d5 Bf7 10.Nd2 Ngf6 11.Be2 Bd6+=.

6.Nc3 g6 7.Qc2 (7.d4 Bf7 (7...a5 8.d5 Bf7 9.a3 Ngf6 10.Be2 Bg7 11.0-0 0-0+=; 7...Bg7+= 8.d5 Bf7 9.Be2 Ngf6 10.0-0 a5 11.a3 0-0+=) 8.Be2 e4 9.Nd2 d5 10.a3 Ngf6 11.0-0 Bg7+=; 7.Be2 Bg7 (7...Nb6 8.d3 Bg7 9.0-0 a5 10.a3 Nf6 11.Ng5 Bg8+=; 7...a5 8.b5 Nb6 9.c5 Nc4 10.Qb3 d5 11.Nd5 Nb2+–) 8.d4 e4 9.Nd2 Ngf6 10.0-0 0-0 11.d5 Bf7=) 7...Bg7 (7...Nb6 8.d4 Bc4 9.de5 d5 10.e6 Nf6 11.Bc4 Nc4=; 7...a5 8.b5 Bg7 9.d4 Ne7 10.Be2 h6 11.0-0 0-0+=) 8.Be2 (8.d4 e4 9.Nd2 Ngf6 10.Be2 a5 11.ba5 Ra5=) 8...Nh6 (8...Nb6 9.d4 Bc4 10.de5 Ne7 11.Nb5 Bb5+–) 9.0-0 (9.d4 0-0 10.0-0 c6 11.d5 cd5+=) 9...0-0 10.Rac1 (10.d4 a5 11.a3 c6+=) 10...c6 (10...g5 11.d3 a5=) 11.a4 (11.d4 e4=) 11...g5 12.e4 (12.d3 g4 13.Nd2 f4=) 12...g4=+ 13.Ne1 f4 (13...Qb6 14.Ba3=+) 14.d3 (14.a5 c5 15.Ba3 Qg5=) 14...Qg5 15.Qd2 Qh5 16.Bd1 (16.Qd1 Nf7 17.Nc2 Ng5–+) 16...Rf6 17.d4 (17.Ne2 Nf7 18.d4 Rh6–+) 17...Bc4 (17...Nb6 18.Qc2 Nc4 19.d5–/+) 18.Ne2 Be6 19.de5 de5 20.Rc3 Nf7 21.Nc1 (21.Bb3 Rh6 22.h3 Rd8 23.Be6 Re6 24.hg4 Qg4–/+) 21...Rh6 22.Rh3 Qg6 23.Rh6 Bh6 24.Qd3 (24.f3 Rd8–+) 24...Rd8 25.Bb3 Nc5! 26.Qc2 (26.bc5 Rd3) 26...Bb3 27.Nb3 Na4 28.Bc1 Qd6 29.Nc5 (29.Bd2 a6–+) 29...Nc5 30.bc5 Qd4 31.Bb2 Qb4 32.f3 (32.Bc3 Qc5 33.Nd3–+) 32...Rd2 33.Bc3 (33.Qc3 Qb2 34.Qb2 Rb2 35.Rf2–+) 33…Qc5 (33...Qc5 34.Kh1 Rc2 35.Nc2 Qc3–+) 0–1. Schoppmeyer,Herbert – Ophoff,Rigobert, OWL–ch Bad Oeynhausen, 1964.

6.Nc3 Nh6 7.Be2 a5 8.b5 Be7 9.0-0 0-0 10.h3.

6.d3 g6 (6...Ngf6 7.d4= (7.Ng5 Bg8 8.Nc3 h6 9.Nf3 a5 10.a3) 7...a5 8.b5 Be7 9.Nc3 h6 10.Qc2; 6...Be7 7.Nc3 a5 (7...Nh6 8.Be2 0-0 9.0-0 c6 10.Qd2) 8.b5 Bf6 9.Be2 Ne7 10.0-0; 6...Nh6 7.Be2 Be7 (7...c6 8.Nc3 Be7 9.Qc2 0-0 10.0-0) 8.0-0 c6 9.Nc3 0-0 10.Qc2) 7.Qc2 (7.d4 d5= (7...Ngf6 8.Ng5 Bf7 9.d5 Bh6 10.Nf7) 8.de5 dc4 9.a3 a5 10.ba5; 7.Qa4 Bh6 8.Nc3 Ngf6 9.Be2 a5 10.h4) 7...Bg7 (7...a5 8.b5= (8.ba5 Bh6 9.h4 Ngf6 10.Nbd2) 8...Bh6 9.Nc3 Ngf6 10.Be2; 7...Bh6 8.Nc3 a5 9.b5 Ngf6 10.Be2) 8.a4 (8.Be2 a5= 9.b5 Ngf6 10.Ng5; 8.Nbd2 a5 9.ba5 Nh6 10.Be2) 8...h6 (8...a5 9.b5= (9.ba5 Ra5 10.Nc3) 9...Ngf6 10.Ng5) 9.g3 (9.Be2 a5= 10.b5; 9.Nc3 Ngf6 10.Be2) 9...g5 (9...a5 10.b5=; 9...Ngf6 10.Nc3) 10.Nbd2 (10.d4 Ne7=) 10...Ne7 (10...g4 11.Nh4 Ne7 12.Bg2=) 11.Bg2 (11.h3 a5=+) 11...0-0 (11...Nc6 12.Bc3=+) 12.0-0= Ng6 (12...a5 13.b5=) 13.Rac1 (13.a5 c6=) 13...c6 14.Ba3 (14.b5 g4 15.Ne1 Qc7=) 14...h5 (14...g4 15.Ne1=) 15.Nb3 (15.b5 g4 16.Ne1 Qc7=) 15...h4 (15...g4 16.Nfd2=) 16.Qd2 (16.b5 h3 17.Bh1 c5=) 16...g4 (16...h3 17.Bh1= (worse 17.Bh3 g4–/+)) 17.Nh4 Nh4 18.gh4 Qh4 19.f4 (19.Na5 Rfb8=) 19...Kf7 (19...ef4 20.ef4 Kf7 21.Rfe1=+) 20.Qf2 (20.b5 Rh8 21.bc6 Qh2 22.Kf2 ef4 23.ef4 g3 24.Ke1 bc6 25.Bd6 Rad8=) 20...Rh8 The backward pawn on h2 becomes a target (20...Qf2 21.Rf2 ef4 22.ef4=+ (worse 22.Rf4 Bh6–+)) 21.Qh4 Rh4 22.Rf2 (22.Na5 ef4 23.Rf4 Be5=+) 22...Rah8 (22...ef4 23.ef4 Rah8 24.b5 Rh2 25.Bd6=) 23.Bf1 (23.e4 ef4 (worse 23...Rh2 24.ef5 Bf5 25.fe5=+) 24.ef5 Bf5 25.Rf4 Kg6–+) 23...d5 24.Na5 (better 24.e4!? R8h5 25.cd5 cd5 26.Nc5 ef4 27.Ne6 Ke6 28.ed5 Kd5 29.Rf4–+) 24...ef4–+ 25.Nb7 (25.cd5 cd5 26.Rf4 Be5–+) 25...fe3 26.Nd6 Kg6 27.Re2 f4 28.Rcc2 (28.cd5 Bd5 29.Rcc2 Ne5–+) 28...Ne5 (28...d4 29.b5 cb5 30.ab5–+) 29.Bb2 (29.b5 Nf3 30.Kh1 dc4 31.dc4 Nd4–+) 29...Nf3 (29...Nd3 30.Re3 fe3 31.Bd3 Kh6 32.cd5 cd5 33.Rc6 Bb2 34.Nf7 Kg7 35.Nh8–+) 30.Kh1 Bb2 31.Rb2 Nd2 (31...Nd4!? 32.Kg1–+) 32.Rbd2 (32.Kg1 Kg5 33.Rbd2 ed2 34.Rd2 g3–+) 32...ed2 33.Re6 (33.Rd2 g3 34.Kg1–+) 33...Kg5 34.d4 (34.Nf7 Kf5 35.Nh8–+) 0–1. Poschmann,Hans – Minzner,Carl, Labor Day Festival op, 1993.

6.d4= d5!? 7.Qa4 e4 =.

6.d4 d5 7.Nc3 dc4 8.d5 Bf7 9.Bc4 Ngf6 10.a3.

6.d4 d5 7.cd5 Bd5= (7...Bb4? 8.Bc3 Bc3 9.Nc3+–) 8.Ne5 Ne5 9.de5 Bb4 10.Bc3.

6.d4= e4 7.d5+= Bf7 8.Nd4 Nh6 (8...Ne5 9.Nf5 Qd7) 9.Qa4 (9.Ne6 Be6) 9...c6 (better 9...Be7!?+=; 9...Qf6+–) 10.dc6+– Nb6 11.Qc2 bc6 12.Nc6 Qc7 13.b5 Be6 14.Nd2 Kf7 15.Be2 Rg8 (15...Be7 16.Ne7 Qe7 17.Bh5 Kg8 18.0-0+–) 16.0-0 Be7 17.f3 ef3 18.Bf3 Rac8 19.e4 (19.Bh5 g6 20.Bf3 Ke8+–) 19...Bf6 (19...Bg5 20.Rae1 Bd2 21.Bh5 Kf8 22.Qd2 Nc4 23.ef5+–) 20.Bf6 gf6 (20...Kf6 21.ef5 Nf5 22.g4 Nc4 23.Nc4+– (worse 23.gf5 Nd2 24.Qd2 Bf5+–)) 21.Bh5 (21.Rae1 Kg7+–) 21...Kf8 22.ef5 Qg7 Threatening mate... how? 23.g3 Bd7 24.Rae1 (24.Na7!? Rc5+–) 24...Bc6 25.bc6 Ng4 (25...Qg5 26.Qe4 Rc7 27.Qe8 Kg7 28.Qe2 Nf5 29.Ne4 Qe3 30.Qe3 Ne3 31.Re3 Nc4 32.Rb3+–) 26.Qd3 The mate threat is Qxd6 26...Qc7 27.Bg4 Rg4 28.Qf3 (28.Re6 Kg7 29.Qe2 Rg3 30.hg3 Qc6 31.Re7 Kf8 32.Qe6 Qe8 33.Qf6 Qf7 34.Qf7) 28...Rg7 29.Re6 Rf7 30.c5 (30.Qa3 Rd8+–) 30...dc5 31.Qa3 Rd8 32.Qc5 Kg7 33.Ne4 Rd5 34.Qc3 Na4 35.Qb4 (better 35.Qf3 Rd4 36.Qe3+–) 35...Nb6 36.Nf6! Rf6 A deflection (36...Rd8 37.Ne8 Re8 38.Qd4 Kg8 39.Re8 Rf8 40.Rf8 Kf8 41.Qh8 Ke7 42.Re1 Kd6 43.Qe5 Kc6 44.Rc1 Kb7 45.Rc7 Ka6 46.Qe2 Ka5 47.Rc5 Kb4 48.Qb5 Ka3 49.Qb3) 37.Re7 (37.Re7 Qe7 38.Qe7 Rf7 39.f6 Kg8 40.Qe8 Rf8 41.f7 Kg7 42.Qe7+–) 1–0. Lalic,Susan K (2270) – Milligan Scott,Helen (2035), BCF–ch, 1990.

6.d4 Be7 7.Bd3 Nh6 8.e4 fe4 9.Be4 0-0 10.Nbd2.

6.d4 Nh6 7.Nc3 Be7 8.Be2 0-0 9.0-0 a5 10.b5.

6.Be2 Nb6 A) 7.Na3 A1) 7...Qe7 8.Rc1 (8.d4 e4 9.Nd2 c6 10.Rb1 Nf6 11.0-0 Qf7 12.Qc2=; 8.0-0 Nf6 9.d4 e4 10.Nd2 c6 11.Rc1 Qd8 12.f3=) 8...Nf6 9.0-0 e4 10.Nd4 Bd7 11.Nab5 Qd8 12.d3+=; A2) 7...Nh6 8.0-0 a5 9.b5 Nf7 10.d4 Qf6 11.Qc2 Be7 12.c5+=; A3) 7...Be7 8.0-0 (8.d4 e4 9.d5 ef3 10.Bf3 Bf7 11.Bg7 Bf6 12.Bh8=) 8...Nf6 9.d4 e4 10.Nd2 c6 11.f3 0-0 12.Qc2=; B) 7.Qc2 Be7 8.d4 e4 9.d5 ef3 10.de6 fe2 11.Bg7 Bf6 12.Bh8–/+; C) 7.d3 C1) 7...Nf6 8.Nc3 (8.a3 Be7 9.0-0 0-0 10.Nc3 Nfd7 11.d4 e4 12.Nd2=; 8.0-0 Be7 9.Nc3 Nfd7 10.Nd2 a5 11.ba5 Ra5 12.Bh5=) 8...Nfd7 9.Nd2 Qf6 10.0-0 Be7 11.Bh5 g6 12.Bf3+=; C2) 7...Be7 8.Nbd2 (8.0-0 Nf6 9.Ng5 Bd7 10.a4 a5 11.c5 Nbd5 12.b5=; 8.Qc2 a5 9.b5 Nf6 10.Ng5 Bc8 11.0-0 0-0 12.d4=) 8...a5 9.b5 a4 10.a3 Nf6 11.0-0 0-0 12.Rc1=; D) 7.Qb3 Nh6 (7...a5 8.ba5 Ra5 9.0-0 Be7 10.d4 e4 11.d5 ef3 12.Bf3+=; 7...c6 8.0-0 Be7 9.a4 a5 10.ba5 Ra5 11.Rd1 Qc7 12.d4+=) 8.d4 e4 9.Nfd2 d5 10.c5 Nd7 11.Nc3 Nf6 12.Qa4+=.

6.Be2 c6 7.0-0 g5 (7...Qf6 8.Nc3 Nb6 9.d3 g5 10.a4 g4 11.Nd2 Bg7 12.a5+=; 7...Be7 8.d4 Ngf6 9.Nc3 e4 10.Ng5 Bg8 11.d5 Ne5 12.f4+=; 7...Qe7 8.d4 (8.Nc3 e4 9.Nd4 Ne5 10.Qb3 Nf6 11.a4 Rd8 12.Rfd1+=) 8...e4 9.Nfd2 Ngf6 10.Nc3 Nb6 11.Qb3 Qf7 12.a4+=) 8.d4 g4 9.Ne1 Ngf6 (9...Bg7 10.d5 cd5 11.cd5 Bf7 12.Nc3=) 10.de5 (10.Nd2 Qc7 (10...Bg7+= 11.Nd3 Qe7 12.c5+=) 11.Nd3 Rg8 12.a4+=) 10...de5= 11.Nd3 (11.c5 Qc7 (11...a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 Bg7 15.Nd2) 12.Qa4= a5 13.Nd3 0-0-0 14.a3 Bh6 15.Rd1) 11...Qc7 12.Qc2 (12.Nd2= 0-0-0 13.a4 Bf7 14.Qc2 e4 15.Nc5) 12...Be7 (12...0-0-0 13.Rd1 h5 14.Nd2 h4 15.f4; 12...Bh6 13.Nd2 0-0-0 14.Rad1 Kb8 15.Nb3) 13.Qc3 (13.Nd2 0-0-0 14.a4 h5 15.a5) 13...Ne4 (13...0-0-0 14.Rd1 Ne4 15.Qc2) 14.Qc2 Rg8 (14...0-0-0 15.Rd1) 15.Nc3 (15.Rd1=) 15...Ng5 16.c5 0-0-0 17.b5 f4 18.bc6 Qc6 19.ef4 Nh3 20.Kh1 Nf4 (worse 20...ef4 21.Nb4 Qc5 22.gh3+–) 21.Nf4 ef4 22.f3 g3 (worse 22...Nc5 23.Nb5 Qb6 24.fg4+=) 23.Nb5 Bc5 24.Rfc1 Qd5 (24...a6 25.Na7 Ba7 26.Qc6 bc6 27.Rc6 Kb7 28.Re6+=) 25.Bd4 Qh5 26.Qc5 (26.Na7 Kb8 27.h3 Bh3 (27...Bd4?! 28.Nc6 bc6 29.Qc6–/+; 27...Ba7 28.Qc7 Ka8 29.Rab1+=) 28.Nc6 Kc7 29.Qc5 A) 29...Qc5? 30.Nd8 (30.Bc5?! bc6 31.gh3 Nc5 32.Rc5 Rd2+=) 30...Qc1 31.Rc1 Kd8 32.gh3+–; B) 29...Nc5 30.Nd8 Bg2 31.Kg2 Qh2 32.Kf1 Qh1 33.Bg1 g2 34.Ke1 Qg1 35.Kd2 Qe3 36.Kc2 Qe2 37.Kc3 Rd8 38.Rab1 Qd2 39.Kc4 Qd4 40.Kb5 Qa4 41.Kc5 g1B 42.Rg1 Qd4 43.Kb5 Rd5; C) 29...Bg2 30.Kg2 C1) 30...Qc5 31.Nd8 (31.Bc5?! bc6 32.Bb4 Nb6+=; 31.Rc5?! bc6 32.Rh5 Rge8+–) 31...Qc1 32.Ne6 Kd6 33.Rc1+–; C2) 30...Nc5 31.Rh1 Qe8 32.Rae1 Kc6 33.Rh6 Rg6 34.Bb5 Kb5 35.Re8 Re8 36.a4 Na4 37.Rh5 Kc4 38.Bg1–+; C3) 30...Qh2 31.Kf1 Qh1 32.Bg1 g2 33.Ke1 Nc5 34.Nd8 Qg1 (34...Kd8?! 35.Kd2–+) 35.Kd2 Qe3 36.Kc2 Rd8 37.Kb1 Qe2 38.Rc5 Kb8 39.Rc1 Rc8 40.Rc8 Kc8 41.Kc1 g1Q) 26...Nc5 27.Rc5 Qc5 28.Bc5 Rd2 29.Rc1 Kd8 (29...Re2?? 30.Be7 Bc4 31.Rc4 Kd7 32.Rc7 Ke6 33.Nd4 Ke5 34.Ne2 gh2 35.Rb7+–; 29...Ra2?? 30.Be7 Bc4 31.Rc4 Kd7 32.Rc7 Ke6 33.Bc4 Kf5 34.Ba2+–) 30.Nd4 Ba2 31.Ba7 Rg6 32.hg3 fg3 (worse 32...Rg3 33.Bb6 Ke8 34.Bb5 Kf7 35.Rc7 Kg8 36.Rc8 Kf7 37.Ne2+–) 33.Bf1 h5 34.Nf5 h4 (34...Rd5 35.Ne3 Rd2 36.Bb8+=) 35.Be3 (worse 35.Nh4 Rh6–/+) 35...Rd5 36.Rc5 (36.Nh4!? Rh5 37.Rd1 Kc7 38.Rd4+=) 36...Rd1= 37.Rc1 Rd5 38.Rc5 ½–½. Sternik,Ryszard – Pelc,J, corr Poland, 1986.

6.Be2 c6 7.Nc3 A) 7...c5 8.bc5 dc5 9.d4 cd4 10.ed4 e4 11.Nd2 Ngf6 12.0-0+=; B) 7...Be7 8.0-0 (8.d4 Nb6 9.d5 Bf7 10.0-0 Nf6 11.dc6 bc6 12.Qb3=) 8...Qb6 9.a3 Nh6 10.d4 a5 11.b5 0-0 12.Rb1+=; C) 7...Nb6 8.Qb3 (8.d3 Be7 9.a4 a5 10.b5 Nh6 11.Rc1 0-0 12.0-0=) 8...Be7 9.0-0 Nf6 10.d4 e4 11.Ng5 Bg8 12.Rfd1=.

6.Be2 Qe7 7.0-0 c6 (7...Nb6 8.Qc2 Nf6 9.Rc1 Bd7 10.c5 Na4 11.Ba3 Rc8 12.Qd1+–; 7...0-0-0 8.d4 e4 9.Nfd2 d5 10.c5 Qh4 11.c6 Nb6 12.cb7+=) 8.Nc3 e4 9.Nd4 Ne5 10.Qb3 Nf6 11.Rfd1 Nfd7 12.Ne6+=.

6.Be2 Be7 A) 7.0-0 A1) 7...a5 8.a3 (8.b5 Bf6 9.d4 Ne7 10.Nc3 0-0 11.Rb1 e4 12.Nd2+=) 8...ab4 9.ab4 Ra1 10.Ba1 Nb6 11.d4 Bc4 12.Bc4+=; A2) 7...Nb6 8.c5 (8.d3 Nf6 9.Ng5 Bd7 10.a4 a5 11.c5 Nbd5 12.b5=; 8.Qb3) 8...Nd5 9.cd6 cd6 10.Qa4 Kf7 11.Bc4 Kg6 12.Qb3+=; A3) 7...Bf6 8.a3 (8.Nc3 a5 9.b5 Nb6 10.d3 a4 11.Nd2 Ne7 12.a3=; 8.d4 Ne7 9.d5 Bf7 10.Nc3 0-0 11.a3 Nb6 12.Qc2=) 8...Ne7 9.d4 e4 10.Nfd2 d5 11.Nc3 0-0 12.Qb3=; B) 7.d4 a5 8.a3 (8.b5 Bf6 9.0-0 e4 10.Nfd2 Ne7 11.Bh5 g6 12.Be2+=) 8...Ngf6 9.0-0 ab4 10.ab4 Ra1 11.Ba1 0-0 12.Ng5+=.

6.Be2 Qf6 A) 7.Nc3 A1) 7...Nb6 8.c5 Nc4 9.Bc4 Bc4 10.Qa4 Kd8 11.c6 b6 12.b5+=; A2) 7...a5 8.ba5 (8.Qa4 c6 9.ba5 Qd8 10.Qb3 Be7 11.d4 Qa5 12.0-0=) 8...Ra5 9.0-0 Nb6 10.Qb3 Qe7 11.a4 Nf6 12.Qb4+=; A3) 7...0-0-0 8.d4 g5 9.d5 Bf7 10.Qa4 Kb8 11.Qa5 Rc8 12.Nb5+=; B) 7.0-0 0-0-0 8.Nc3 (8.d4 e4 9.Nfd2 Ne7 10.Nc3 d5 11.Qb3 dc4 12.Nc4=; 8.Qc2) 8...Nb6 9.Qb3 Ne7 10.a4 Qg6 11.a5 Na8 12.Rfd1+=.

6.Be2 g6 7.d4 Bg7 8.0-0 Qe7 9.Nc3 g5 (better 9...Nb6!? 10.d5 (10.c5 Nc4 11.Bc1 e4 12.Qa4 Kf7 13.Nd2 Nd2) 10...Bd7+= (10...Bf7 11.e4 0-0-0 12.Qc2 fe4 13.Ne4 Nf6) 11.a4 a5 12.ba5 Ra5 13.Nb5 Bb5; 9...e4 10.Nd2 Nh6 11.Nb3 0-0 12.Qd2 Ng4 13.h3 Ngf6) 10.Nb5+– (10.e4 g4 11.d5 gf3 12.de6 fe2 13.ed7 Qd7) 10...Kd8 (10...0-0-0 11.d5 Bf7 12.Na7 Kb8 13.Nb5 g4) 11.de5 Ne5? (better 11...de5 12.Be5 Be5 13.Ne5 c6+– 2.79/9 (13...Ngf6+–)) 12.Ne5 (12.Be5 Be5 13.Ne5 Kc8+–) 12...a6 13.Na3 Kc8 14.Nd3 Bb2 15.Nb2 g4 (15...Nf6 16.Qc2+–) 16.Qd4 Nf6 17.Nd3 h5 18.Nf4 Bf7 (18...Re8 19.Rac1+–) 19.Nd5 (better 19.Bd3!? Re8 20.Bf5 Kb8+–) 19...Bd5 20.cd5 Kd7 (20...Qe5 21.Rad1+–) 21.Rac1 (21.Bd3 Qe5 22.Qe5 de5 23.Bf5 Ke7+–) 21...h4 (21...Qe5 22.Bd3 Qd4 23.Bf5 Kd8 24.ed4 Nd5 25.Rb1+–) 22.b5 (22.Bd3 Rh5 23.Qc4 Kd8+–) 22...b6 (22...Qe5 23.b6 Nd5 24.Qe5 de5 25.bc7 Kc8+–) 23.ba6 Ne4 (23...Qe5 24.Qa4 Kd8 25.Rc7 h3+–) 24.Bb5 (24.Bb5 c6 25.Bc6 Kc7 26.Nb5 Kc8 27.Qh8 Qd8 28.Qg7 Nc5 29.Qb7 Nb7 30.ab7 Kb8 31.ba8Q) 1–0. Koester,Roman (2010) – Zagrabski,Marc, Ruhrhalbinsel op, 2004.

6.Nc3 c6 7.a3 (7.d4 Nd7 (7...Qc7 8.a3 Nf6 9.Be2 0-0 10.0-0 Nfd7 11.Rc1 e4+=; 7...e4 8.d5 Bc8 9.Nd4 Nf6 10.a3 0-0 11.Be2 c5+=) 8.Be2 e4 9.d5 ef3 10.de6 fe2 11.ed7 Qd7=; 7.Be2 Nh6 (7...Na6 8.b5 cb5 9.cb5 Nc7 10.0-0 Nd5 11.a4 Rc8=; 7...a5 8.b5 Bf6 9.d4 e4 10.Nd2 Ne7 11.0-0 0-0+=) 8.d4 e4 9.Nd2 d5 10.b5 0-0 11.Qb3 Qd7=) 7...Nd7 (7...Bf6 8.d4 e4 9.Nd2 Ne7 10.Be2 d5 11.0-0 0-0=; 7...Nf6 8.d4 e4 9.Ng5 Bd7 10.Be2 0-0 11.0-0 Ne8+=) 8.d3 (8.d4 Nb6 9.de5 Nc4 10.Bc4 Bc4 11.ed6 Bf6+–) 8...Bf6 (8...Nh6 9.d4 0-0 10.d5 cd5 11.Nd5 Nb6=) 9.Be2 Ne7 10.0-0 (10.d4 e4 11.Nd2 0-0=) 10...0-0 (10...d5 11.Qb3 0-0=) 11.Qc2 (11.d4 e4=) 11...Rc8 (11...d5=) 12.a4 d5 13.c5 g5 (13...a5 14.Ba3=+) 14.Nd2 (14.d4 e4 15.Nd2 g4=) 14...Ng6 15.Bh5 Kg7 16.Bg6 hg6 17.Ne2 Rh8 18.f4 g4 (18...gf4 19.ef4 e4 20.Rae1=) 19.fe5+= Ne5 20.Nf4 Bf7 21.d4 (21.Rae1 Qc7+=) 21...Nd7= 22.Rf2 (22.b5 b6=) 22...Nf8 (22...Qc7 23.Nf1=) 23.Nf1 Bh4 24.g3 (24.Re2 Qe7=) 24...Bf6=+ 25.Re1 Nh7 26.b5 Ng5 27.Nd2 Rh6 28.Qd3 Qh8 29.Bc3 Qh7 30.bc6 bc6 31.Qa6 Rh8 32.Ree2 (32.Qc6?? Rh2 33.Kf1 Nf3 34.Rf3 Rd2 (34...gf3?! 35.Nf3 Rc2 36.Ne2–+) 35.Bd2 gf3–+) 32...Nf3 33.Nf3 gf3 34.Rb2 (34.Rf3? Rh2 35.Rg2 g5–+) 34...g5 35.Nd3 Rh3 36.Ne1?? (36.Ne5 Rg3 37.Kh1=) 36...Rg3–/+ 37.Kh1 g4 38.Qa7 (better 38.Qc6!? Rh3 39.Rfc2–+) 38...Rh3 39.Nf3 Rf3 40.Rf3 gf3 41.Qc7 Qh3 42.Kg1 Rh6 (42...Rh4!? 43.Rf2–+) 43.Be1 Rg6 (43...Rg6 44.Bg3 Bh4 45.Qe5 Kh7–+) 0–1. Lothal,G – Hengst,Hansi, corr DDR, 1985.

6.Nc3 Bd7 7.Be2 e4 (7...Nf6 8.0-0 e4 9.Ng5 Nc6 10.b5 Ne5 11.f4 Ng6+=) 8.Nd4 Nf6 9.d3 0-0 10.b5 c5 11.Nb3 Be6+=.

6.Nc3 Nf6 A) 7.Qb3 a5 (7...Nc6 8.Be2 e4 9.Ng5 Bg8 10.b5 Na5 11.Qa4 c6=; 7...c6 8.d4 e4 9.Ng5 Bg8 10.Be2 Nbd7 11.0-0 h6=) 8.ba5 Nc6 9.Qb7 Na5 10.Qb4 0-0 11.Qa4 Kh8=; B) 7.d4 a5 (7...e4 8.Ng5 Bc8 9.Be2 0-0 10.0-0 a5 11.b5 Ne8+=; 7...0-0 8.Ng5 Qc8 9.Ne6 Qe6 10.d5 Qf7 11.Bd3 Qg6=) 8.de5 de5 9.Qd8 Kd8 10.Ne5 ab4 11.Nd5 Re8=; C) 7.a3 a5 (7...0-0 8.d4 e4 9.Ng5 Bc8 10.Be2 Qe8 11.0-0 a5+=; 7...Bd7 8.Be2 a6 9.0-0 a5 10.d4 e4 11.Nd2 0-0+=) 8.d4 ab4 9.ab4 Ra1 10.Qa1 0-0 11.Ng5 Bc8+=.

6.Nc3 Nh6 A) 7.d4 0-0 (7...e4 8.d5 Bf7 9.Nd4 0-0 10.a3 Bf6 11.Be2 Be5+=) 8.de5 de5 9.Ne5 Bb4 10.Qb3 Na6 11.a3 Ba5=; B) 7.Be2 0-0 (7...a5 8.b5 0-0 9.0-0 Nd7 10.d4 Bf6 11.Rb1 e4=; 7...Bf6 8.d4 e4 9.Nd2 0-0 10.0-0 a5 11.Qa4 Nc6+=) 8.0-0 a5 9.b5 Nd7 10.d4 Bf6 11.d5 Bf7=.

6.d3 Nf6 7.g3 0-0 8.Bg2 Nc6 9.b5 Nb8 10.0-0 Nbd7? (10...c6 11.Ng5 Bc8 12.Nc3=) 11.a4 (better is 11.Ng5!? Bf7 12.Nf7 Rf7 13.Bb7+/–) 11...Nc5= 12.Qe2 (12.d4 ed4 13.ed4 Nce4= (worse is 13...Bc4 14.dc5 Bf1 15.Qf1+/–)) 12...Ng4 (better is 12...e4!? 13.de4 fe4+=) 13.h3 Nf6 14.Ng5 h6? (better is 14...Bc8=) 15.Ne6+– Ne6 16.Bb7 Rb8 17.Bg2 f4 (17...Qe8 18.Nd2+–) 18.Nc3 (better is 18.ef4 Nd4 19.Bd4 ed4 20.Bc6+–) 18...Nh5?? (better is 18...fe3 19.fe3 Ng5+–) 19.ef4 (better is 19.Qh5 Nc5 20.Qe2 Bf6+–) 19...ef4 (19...Nef4 20.gf4 Nf4+–) 20.Qe6 Kh8 21.g4 (21.Bf3 Nf6 22.Nd5 Re8+–) 21...Nf6 (21...f3 22.gh5 fg2 23.Kg2+–) 22.Nd5 Nd5 (22...Re8 23.Qf7 f3 24.Rfe1+–) 23.Qd5 (23.Qh6! Kg8 24.Qg7) 23...Bg5 (23...Bf6 24.d4+–) 24.f3 (24.Bd4!? c5 25.bc6 Bf6+–) 24...Qd7 25.Rfe1 Rbe8 26.Re4 Re4 27.de4 Re8 28.Rd1 Re6 29.Re1 White prepares the advance e5 29...Bf6 30.Bf6 Rf6 31.Bf1 Re6 32.e5 Qe7 33.Qa8 Kh7 34.Bd3 (34.Bd3 g6 35.Qa7 de5 36.a5+–) 1–0. kannisogoet – dudibudi, internet, 2013.

6.d4 g5 7.de5 g4 8.Nd4 Bd7 9.e6 Bc8 10.Nf5 Be6 11.Ng7 Kf7 12.Ne6 Ke6 13.Qg4 Kf7 14.Qg7 Ke6 15.g3 Nf6 16.Bh3 (16.Bh3 Ng4 17.Bg4#) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.Nfd2 d5 8.cd5 Bd5 9.a3=.

7.Nfd2 Bf6 8.g4 (8.Be2 c5=) 8...fg4 (8...Bh4 9.gf5 Bf5 10.Rg1=) 9.Ne4 d5 (9...Nd7 10.h3 gh3 11.Nbd2=) 10.cd5+= (worse is 10.Nf6 Nf6 11.Bg2 c6=) 10...Bd5 (10...Qd5 11.Nbc3 (worse is 11.Nf6 Nf6 12.Rg1 Qd6+=) 11...Qd8 A) worse is 12.Nf6 A1) worse is 12...gf6 13.Bg2 a5 14.ba5+/– (worse is 14.Bb7 Ra7 15.Bg2 ab4+=); A2) 12...Nf6 13.b5 a6+=; B) 12.h3+=) 11.Nbc3 (11.Qg4 Nc6 12.a3+/– (12.Nf6? Nf6 13.Qg1 Nb4–+)) 11...c6? (better is 11...Be6+=) 12.Qg4+– (worse is 12.Nd5 cd5 13.Qa4 Kf7+/–) 12...Nd7 (12...Bf7 13.Nc5 Qc7 14.N3e4+–) 13.Nd5 cd5 14.Qh5 g6 (14...Ke7 15.Qd5 Qb6+–) 15.Qd5 Ne7 (15...Ke7 16.Bb5 Nb6 17.Qb7 Kf8+–) 16.Nd6 Kf8 17.Qf7 1–0. Janek – yxdjango, internet, 2017.

8.Bf6 Qf6 9.Nd4 Bd7 10.Nc3 Ne7 11.c5 0-0=.

9.Qb3 c6 (9...a5 10.ba5 (10.c5 Ne7 11.ba5 dc5 12.Qb7 Na6 13.Ba6 cd4 14.Bd4 Bd4=) 10...Ra7 (10...Qc8 11.Be2 Na6 12.Nd2 Nc5 13.Qb4 Ne7 14.0-0 Ng6+=) 11.Be2 Nh6 12.Nb5 Bb5 13.cb5 Ra5 14.Nc3 Nd7+=; 9...Be5 10.c5 (10.Nd2) 10...Nf6 (10...Ne7 11.Bc4 Ng6 12.0-0 Nh4 13.f4 ef3 14.Nf3 Nf3+=; 10...a6 11.Bc4 Nh6 12.b5 Qg5 13.c6 bc6 14.bc6 Bc8+=) 11.Bc4 Ng4 12.h3 Qh4 13.0-0 Bh2 14.Kh1 Be5+=; 9...Ne7 10.Be2 0-0 (10...a5 11.ba5 Qc8 12.Bh5 g6 13.Be2 Be5 14.c5 Na6+=; 10...Be5 11.0-0 Ng6 12.Nd2 Na6 13.f4 Bf6 14.Rac1 c5+–) 11.0-0 a5 12.ba5 Bc8 13.c5 Ra5 14.cd6 cd6+=; 9...Qe7 10.c5 Be5 (10...Nh6 11.Be2 Ng4 12.Nd2 Be5 13.Bg4 fg4 14.Qc4 dc5+–) 11.Bc4 Nh6 12.Nd2 Ng4 13.h3 Qh4 14.0-0 Bh2+–) 10.Nd2 (10.c5 Bc8 (10...Qe7 11.Nd2 Bc8 12.Nc4 dc5 13.bc5 Qc7 14.Nd6 Kf8+–) 11.Bc4 Ne7 12.dc6 bc6 13.cd6 Qd6 14.0-0 Be5+–; 10.Be2 Be5 11.0-0 Nf6 12.Nd2 Qe7 13.f4 Bd4 14.Bd4 0-0+=) 10...a6 (10...Na6!?+= 11.g4 Qb6 12.a3 fg4 13.Ne4 c5 14.Nb5 Bb5+–; 10...Ne7 11.dc6 bc6 12.Be2 0-0 13.c5 d5 14.0-0 Qc7=; 10...Qc7 11.dc6 bc6 12.c5 Ne7 13.Nc4 dc5 14.bc5 Nc8+–) 11.c5+– dc5 12.bc5 Qc7 (better 12...Ra7 13.d6 Qa5+– 14.Ne6 Bb2+–) 13.d6+– Qc8 14.Bc4 (14.Nc4 Ra7+–) 14...Nh6 15.Ne6 Be6 16.Be6 Nd7 17.Nc4 Qd8 (17...Bb2 18.Qb2 (18.Nb2?! b5+–) 18...Kf8 19.Nb6 Nc5 20.Bc8 (20.Nc8?! Nd3 21.Ke2 Nb2+–) 20...Nd3 21.Ke2 Nb2 22.Na8+–) 18.Bd7 Qd7 19.Bf6 gf6 20.Nb6 Qf7 (20...Qd8 21.Na8 Qa8 22.Qe6 Kf8 23.Qf6 Nf7 24.Qf5+–) 21.Na8 (21.Na8 Qb3 22.ab3+–) 1–0. Dluhosch – Collen, corr, 1989.

9.b5 Nh6 10.Qh5 Nf7 11.Ne6 Be6? 12.de6+– g6 13.ef7 Kf7 14.Qe2 1–0. Bonetti,Shane – guest313, ICC, 2002.

9.Nc3 a5 10.b5 (10.ba5 Ne7 11.Be2 0-0 12.0-0 Ra5 13.Qd2 Ra8 14.f3 ef3=) 10...Be5 (10...Qe7 11.Qh5 g6 12.Qd1 Be5 13.Rb1 Nf6 14.Be2 0-0+=) 11.f4 Bf6 12.Be2 Ne7 13.0-0 0-0 14.a3 Nc8+=.

9.Nc3 Be5 10.a3 (10.Qh5 g6 11.Qd1 Na6 12.a3 Qe7 13.Rc1 Nf6 14.Be2 0-0-0=) 10...a5 (10...Nf6 11.Be2 a5 12.b5 0-0 13.0-0 Re8 14.Qd2 Qe7+=; 10...Qh4 11.c5 dc5 12.bc5 Nh6 13.Qb3 b6 14.d6 Bd4+–) 11.Be2 Nf6 12.b5 0-0 13.0-0 Qe8 14.Qd2 Qg6+=.

9.Nc3 Ne7 10.Be2 0-0 11.0-0 c6 12.Ne6 (12.c5!?+=) 12...Be6= 13.de6 d5 (13...Na6 14.Qd2=+) 14.cd5= cd5 15.Qb3 Qd6 16.Nb5 (16.Rad1 Bc3 (worse 16...Qe6 17.Nd5 Nd5 18.Bc4+–) 17.Qc3 Rf6+=) 16...Qb6= (worse 16...Qe6 17.Nc7 Qd6 18.Na8+–) 17.a4 a6 (17...Bb2 18.Qb2 Na6= (worse 18...Qe6 19.Nc7 Qd6 20.Na8+–)) 18.a5+= Qd8 (18...Qe6? 19.Nc7 Qd6 20.Na8 Bb2 21.Qb2+–) 19.Nd4 Nec6 (better 19...Nbc6!?=) 20.e7+– Qe7 21.Qd5 Kh8 22.Nf5 Qd7 23.Qc5 Ne7?? (better 23...Qe8 24.Bf6 Rf6+–) 24.Bf6 Nf5 (24...Rf6 25.Ne7 Qe8+–) 25.Qf8 1–0. DEFFM – raskanueces, freechess.org, 2017.

9.Nc3 Ne7 10.g4 fg4 11.Ne4 Be5 12.Nc3 Na6 13.b5 Nc5 14.Qd2 Nf5 15.0-0-0 Qg5 16.Re1 Nh4 17.Be2 Rf8 18.Ba3 Qe7 19.Ref1 Nf3 20.Bf3 gf3 21.h4 a6 22.Rfg1 Rf7 23.h5 Rf6 24.Rd1 0-0-0 25.Qc2 h6 26.Qd2 Re8 27.Rdg1 ab5 28.Bc5 dc5 29.Ndb5 Ra6 30.Rd1 Qf8 31.Rh4 Qf6 32.Rhh1 Bc3 33.Nc3 Ra4 34.Na4 Qa1 35.Kc2 Qa2 36.Kc1 Qa1 37.Kc2 Ba4 38.Kd3 Bd1 39.Rd1 Qe5 40.Qa5 Qb2 41.Qa8 Kd7 42.Qa4 c6 43.Rd2 Qb1 44.Kc3 Qc1 45.Kd3 Kd6 46.dc6 Rd8 47.Qa5 b6 48.Ke4 Ke6 49.Qb6 Rd2 50.c7 Kd7 51.c8Q Kc8 52.Qc5 Kd7 53.Qf5 Ke7 54.Qe5 Kd8 55.Qa5 Ke8 56.Qe5 Kf7 57.Qf5 Kg8 58.Qe6 Kh7 59.Qf5 Kh8 60.Qf8 Kh7 61.Qf5 Kg8 62.Qe6 Kf8 63.Qf5 Ke8 64.Qe5 Kf8 65.Qf5 Ke8 66.Qe5 ½–½. MacChess 5 – MacChess 5, 2000.

9.c5 A) 9...Qe7 10.Qb3 a6 (10...Nh6 11.Be2 Ng4 12.Nd2 Ne5 13.0-0 a6 14.Rfc1 Ra7+–; 10...Be5 11.Bc4 Nh6 12.Nd2 Ng4 13.h3 Nf6 14.0-0 f4+=) 11.Bc4 Nh6 12.Nc3 Bd4 13.ed4 0-0 14.0-0 Qh4+=; B) 9...Ne7 10.Ne6 Be6 11.Bf6 gf6 12.de6 Nbc6 13.Nc3 h5 14.Nd5 Nd5+–; C) 9...Be5 10.Qb3 (10.Bc4 Nf6 11.0-0 Bh2 12.Kh2 Ng4 13.Kg3 Qf6 14.Nf5 Qf5=) 10...Nf6 (10...Ne7 11.Bc4 Ng6 12.0-0 Nh4 13.f4 ef3 14.Nf3 Nf3+=; 10...Nh6 11.Nd2 Ng4 12.Nc4 Qh4 13.g3 Qh6 14.h3 a6+=) 11.Bc4 Ng4 12.h3 Qh4 13.0-0 Bh2 14.Kh1 Be5+=.

9.Nd2 c5 10.dc6 bc6 11.Qb3 Ne7 12.c5+= Nd5 13.cd6+/– 0-0 14.Bc4+– Kh8 15.Bd5 cd5 16.Qd5 Bd4 17.Qd4 Qg5 18.0-0 Nc6 19.Qc5 Rac8 20.Rfd1 Rfe8 21.Rac1 Ne5 22.Qa7 Ra8 23.Qc7 Rac8? 24.Qa5 Nd3 25.Rc8 Rc8 26.Ne4! Qg4 27.f3 Qg6 28.Rd3 fe4 29.fe4 Rc2 30.Qa8 Bc8 31.Rd2! (31.Rd2 Rc4 32.d7+–) 1–0. Bonetti,Shane – guest704, ICC, 2002.

9.Be2 c5 (9...Na6; 9...Be5; 9...a5) 10.dc6 Nc6 11.a3 Nd4 12.Bd4 Bd4 13.Qd4 Qf6 14.Nc3 Qd4=.

9.Qh5 g6 10.Qd1 (10.Qe2 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 c5 14.dc6 bc6=) 10...c5 (10...Be5; 10...Nh6) 11.dc6 Nc6 12.Qd2 Nd4 13.Bd4 Bd4 14.Qd4 Qf6=.

6.d4 e4? 7.Nfd2?? (better 7.d5 Nf6 8.de6 ef3 9.Qf3+-) 7...Bh6?? (7...d5 8.a3=) 8.c5?? (8.d5!? Nf6 9.de6 Bg7+-) 8...dc5?? (8...Nf6 9.Qa4 Nbd7 10.Nc3=) 9.bc5?? (better 9.d5 Bd5 10.Bh8 cb4 11.a3+-) 9...Qg5?? (9...Nf6 10.Bc4 Bc4 11.Nc4+=) 10.Bb5 (better 10.d5 Nf6 11.h4+-) 10...c6 (better 10...Bd7 11.Bd7 Nd7+=) 11.Be2 (11.d5 cb5 12.0-0 Nf6 13.de6 a6+/-) 11...Bg7 (11...Qg2 12.Rf1 Bg7-/+ (12...Qh2? 13.d5 Bd5 14.Bh8+-)) 12.0-0+= Bd5 (12...Nd7 13.Nc4 Bc4 14.Bc4+=) 13.Nc3+/- Nd7 14.Nd5 cd5 15.Qb3 Rb8? (better 15...Ne7+=) 16.Qd5+- Ndf6?? (16...Ne7 17.Qb3 h6+-) 17.Qe5 Kf7 (17...Kf8 18.Qb8 Ne8 19.Qa7+-) 18.Qb8 (better 18.Ne4 fe4 19.Bc4 Kf8 20.Qg5 Bh6+-) 18...Ne7 (18...Ne8 19.Bc4 Kf8 20.Qa7+-) 19.Qb7 (better 19.Bc4 Nfd5 20.Qc7 Rc8 21.Bd5 Kf8 22.Qb7 Qf6+-) 19...Ng4 (19...Rd8 20.Qa7 Nfd5 21.Nc4+-) 20.Bg4 (better 20.Bc4 Ke8 21.c6 Be5 22.Qa8 Nc8 23.Qc8 Qd8 24.Qe6 Qe7 25.de5 Qe6 26.Be6 Ke7+-) 20...Qg4 21.d5 h5 (21...Bb2 22.Qb2 Rd8+-) 22.Bg7 (22.Bg7 Kg7 23.Qe7 Kh6 24.Nc4+-) 1-0. fishissushi – waldrapp, Rated Blitz game, lichess.org, 2019.

6.d4 Bg7 7.Be2 e4 8.Nfd2 Ne7 9.0-0 0-0 10.Nc3 c6 11.a4 Nd7 12.Qb3 b5? (12...a5 13.b5+=) 13.d5 (better 13.ab5!? cb5 14.Nb5+-) 13...bc4 14.Bc4 (worse 14.Qc4 Ne5 15.Qb3 Nd5-/+) 14...cd5 15.Nd5 Nd5 16.Bg7 (16.Bd5!? Bd5 17.Qd5 Rf7 18.Bg7 Kg7 19.Qd6+/-) 16...Kg7+= 17.Bd5 Bd5 18.Qd5 Nf6 19.Qd4 Qb6 20.Qb6 ab6 21.Nc4 White prepares a5 21...d5? (better 21...Rfb8+=) 22.Nb6+- Rab8 23.a5 Rfd8 24.Rfd1 Rd6 25.Kf1 (25.b5 Kf7+-) 25...g5 26.Ke2 f4 27.Rd4 fe3 28.fe3 Rf8 (28...Rdb6 29.ab6 Rb6 30.Ra5+-) 29.Rf1 (29.Nc4 Rd7 30.Nd2 Rb8+-) 29...Rb8 (29...Rb6 30.ab6 Rb8 31.b5 Rb6 32.Rb4+-) 30.Rf5 (30.Na4 Rc6 31.Nc5 Kg6+-) 30...h6 31.Kd2 Ng4? (31...Rdb6 32.ab6 Rb6 33.Rf1+-) 32.h3 (better 32.Nd5 Rb5+-) 32...Nf6 33.Kc3 Rc6 34.Kb3 Rc1? (34...Rcb6 35.ab6 Rb6 36.Rd2+-) 35.Ka4 (better 35.Rf6 Kf6 36.Nd7 Ke6 37.Nb8+-) 35...Rc3?? (35...Ra1 36.Kb5+-) 36.Nd5 (better 36.Rf6 Re3 37.Nd5+-) 36...Nd5 37.Rfd5 Re3 38.a6 (38.Rd7 Kf6 39.R7d6 Ke5 40.R4d5 Kf4 41.Rf6 Kg3 42.Rh6 Rg8+-) 38...Re2 39.Ra5?? (39.Rd2 Re1 40.Ra2 Kf6+-) 39...Rb2?? (better 39...Ra2 40.Kb3 Ra5 41.Rd7 Kf6-+) 40.a7 Ra8 41.Rd7 Kg6 42.b5 e3 43.Re7 (43.Ra6 Kf5 44.b6 e2+-) 43...e2? (better 43...Ra2 44.Kb4 Ra5 45.Ka5 Kf6 46.Re3 Ra7 47.Kb6 Ra1+-) 44.Ka3 (better 44.Ra6 Kh5 45.Ka5+-) 44…Rd2 (44...Rd2 45.b6 Rad8+-). jhonores (1990) - lopezku (1840), Rated Bullet game, lichess.org, 2020.

6.Nc3 Nf6 7.b5 Be7 8.Nh4 0-0 9.Qc2 Nbd7 10.Nf5 Bf5 11.Qf5+/– Nc5 12.Qg6 Rf7 13.Be2 Ne6 14.0-0 c6 15.Rae1 d5 16.bc6 bc6 17.cd5 cd5 18.Rb1 d4 19.Nb5 Qa5?? 20.Bc4 Nd8 21.ed4 ed4 22.Nd4 Qd2 23.Nf5 Bf8 24.Bf6 (24.Bf6 Qd5 25.Bd5 Ne6 26.Be6 Kh8 27.Bf7 Rd8 28.Qh6#) 1–0. miec – dunhill07, internet, 2009.

6.d4 e4 7.Nfd2 Nf6 8.d5 Bf7 9.Be2 c5 10.b5 b6 11.0-0 a5 12.a4 Nbd7 13.f3 Ne5 14.fe4 fe4 15.Nc3 Qe7 16.Nce4 Ne4 17.Ne4 Nc4 18.Bc4 Qe4 19.Qf3 Bg6 20.Qe4 Be4 21.Rf4 Bg6 22.Raf1 Rg8 23.e4 0-0-0 24.e5 Be7 25.e6 Bc2 26.Rf7 Rde8 27.Rg7 Rg7 28.Bg7 Ba4 29.Bf6 Kd8 30.Be7 Re7 31.Rf8 Re8 0–1. typul48 – fogudi, internet, 2014.

6.a3 A) 6...a5 7.b5 (7.d4 ed4 8.ed4 d5 9.c5 Be7 10.Ne2 0-0 11.Nf4=+; 7.Nf3 ab4 8.ab4 Ra1 9.Ba1 Bd7 10.d3 Be7 11.h5=) 7...Be7 8.d4 e4 9.d5 Bd7 10.h5 0-0 11.Be2=; B) 6...Be7 7.Nf3 (7.Be2 0-0 8.Nf3 Nfd7 9.d4 e4 10.Ng5 Bg5 11.hg5=+; 7.h5 a5 8.h6 g6 9.Nf3 Bd7 10.Be2 0-0 11.b5=) 7...Bd7 8.Be2 e4 9.Nd4 0-0 10.0-0 a5 11.d3=.

6.d4 ed4 7.ed4 Qe7 8.Qe2 d5 9.c5 Ne4 10.Nc3 Nd7 11.Nf3=.

6.Nf3 h6 (6...Bd7 7.d4 (7.Be2=+ Be7 8.0-0 e4 9.Ng5 0-0 10.c5 d5 11.d3=+; 7.Nc3 e4 8.Ng5 h6 9.Nh3 Be7 10.Nd5 0-0 11.Ne7=) 7...e4 8.Nfd2 Be7 9.h5 d5 10.Nc3 Bb4 11.Nd5=; 6...Be7 7.d4 0-0 8.Ng5 Bc8 9.de5 de5 10.Qd8 Rd8 11.c5=; 6...Bc8 7.a3 (7.d4 e4 8.Nfd2 Be7 9.Nc3 0-0 10.d5 a5 11.a3=; 7.Be2 e4 8.Nd4 Be7 9.h5 c5 10.Nc2 0-0 11.h6=+) 7...Be7 8.Be2 0-0 9.d4 e4 10.Nfd2 d5 11.h5=) 7.Nc3 (7.d4 Bd7 8.de5 de5 9.c5 e4 10.Ne5 Be6 11.Qd8+=; 7.a3 Bf7 8.Be2 Be7 9.0-0 0-0 10.d4 e4 11.Nfd2=) 7...Be7 8.h5 (8.d4 Nbd7 (8...0-0= 9.de5 de5 10.Ne5 Bb4 11.Qb3=) 9.d5 Bf7 10.Qc2 a5 11.a3=) 8...Nbd7 (8...0-0 9.d4 Nbd7 10.d5 Bf7 11.Qc2=+) 9.d4 e4 (9...a5 10.b5= (10.ba5 0-0 11.Qc2=) 10...0-0 11.Be2=; 9...c6 10.Nh4 0-0 11.d5=) 10.Nh4 (10.d5!? Bf7 11.Nd4+=) 10...Nf8= 11.d5 Bd7 12.Ne2 Rg8 (12...Ng4 13.g3 (worse 13.Bg7 Bh4 14.Rh4 Qh4–+) 13...Bf6 14.Rb1=) 13.Nf4 Ng4 14.Nhg6 Bf6 15.Bd4 c6 (15...Ng6 16.hg6 a5 17.b5=) 16.Rc1 (16.Nf8 Rf8 17.Be2 c5 18.bc5 dc5 19.Bf6 Qf6+=) 16...a5 (16...Ng6 17.hg6 c5 18.Bf6 Qf6 19.bc5 dc5 20.Qb3=) 17.b5 c5 18.Bf6 Qf6 19.Nf8 Rf8 20.Be2 Ne5 21.Qd2 b6 22.Rd1 0-0-0 23.Rc1 Rh8 24.Bf1 Rdf8 25.Ne2?? (better 25.Rd1=) 25...Nd3–+ 26.Kd1 Nf2 27.Ke1 (27.Kc2 Nh1 28.Nf4 Ng3–+) 27...Nh1 28.Nc3 (28.Nf4 Qh4 29.Kd1 Be8–+) 28...Qh4 29.Kd1 Ng3 30.Na4 (30.Kc2 Qh5 31.Kb2 Qg5–+) 30...Kb7 (better 30...Nf1 31.Nb6 Kd8 32.Qe2–+) 31.Qb2 (31.Qf2 f4 32.Be2 Qg5–+) 31...Qh5 (31...Nf1 32.Qg7 Rd8 33.Kc2–+) 32.Kc2 (32.Be2 Qh1 33.Kd2 Qg2–+) 32...Rf7 (better 32...Nf1 33.Qg7 Qe2 34.Kb1–+) 33.Kb1 Qg5 34.Qf2 Rhf8 35.Qf4 Qf4 36.ef4 g5 37.Nc3 gf4 38.Be2 Re7 39.Rc2 h5 40.Nd1 (40.Kc1 Rg8–+) 40...h4 (40...Ne2 41.Re2 Rg8 42.Nc3–+) 41.Nf2 Rfe8 42.Nh3 (42.Kc1 f3! 43.gf3 Ne2 44.Re2 ef3 45.Re7 Re7–+) 42…Ne2 (42...Ne2 43.Re2 f3 44.gf3 ef3–+) 0–1. Anderson,George – Rutter,Blair (1855), Mating Season op, 2006.

6.Qd1 A) 6...Na6 7.Nc3 (7.Nf3 Nb4 8.d4 c6 9.a3 Na6 10.de5 Bg7 11.Qc2; 7.Qb3 Bg7 8.Nf3 Nh6 9.Nc3 c5 10.b5 Nc7 11.Be2) 7...Nf6 (7...Nb4 8.Nf3 Nf6 9.d4 ed4 10.Nd4 Bd7 11.Be2; 7...Bh6 8.Nf3 Nf6 9.Qb3 c5 10.b5 Nc7 11.h4) 8.Nf3 Nb4 9.Qb3 a5 10.a3 Nc6 11.Nd5; B) 6...Nf6 7.Nf3 Bh6 8.d4 Nbd7 9.de5 de5 10.Ne5 a5 11.b5; C) 6...a5 7.b5 Nf6 8.Nf3 Bh6 9.Nc3 Nbd7 10.Be2 Qe7 11.0-0.

6.Qf3 e4 (6...Nc6 7.Nh3 Nb4 8.Na3 Bd7 9.Bc3 a5 10.c5 Nf6 11.Qb7) 7.Qe2 (7.Qg3 Nf6 8.Nh3 Nc6 9.Nf4 Bf7 10.Nc3 Bg7 11.Be2) 7...Nf6= 8.Nh3 Bh6 9.Nc3 Nc6 10.Nd5 Ne5 11.Nhf4.

6.Qh3 Qe7 (6...Nc6 7.b5 Nb4 8.Na3–/+ Nf6 9.Bc3 a5 10.d3 Bg7 11.Nf3; 6...Nf6 7.Nf3 Nc6 8.a3 Ne4 9.b5 Na5 10.Nc3 Nc4 11.Ne4) 7.b5 (7.d4 d5= (7...ed4 8.Bd4 Bg7 9.Nd2 Nf6 10.Ngf3 Nc6 11.Be2) 8.cd5 Bd5 9.Nc3 Be6 10.de5 Nc6 11.0-0-0) 7...Bg7=+ (7...Nd7 8.Nc3 Nb6 9.c5 dc5 10.Nf3 Bg7 11.a4; 7...Nf6 8.Nf3 f4 9.Qh4 Nbd7 10.Nc3 0-0-0 11.ef4) 8.g3 (8.d3 a6=+ (8...f4 9.g4 Nf6 10.Nc3 Nbd7 11.Nf3) 9.Nc3 Nf6 10.Be2 0-0 11.Nf3; 8.Nc3 Nf6 9.Nf3 f4 10.Qh4 Nbd7 11.Be2) 8...Nd7 9.Qg2 (9.Bg2 A) 9...Bc4?! 10.Na3 (10.Bb7? Rb8 11.Na3 Bb5–+) 10...Bd3 11.Bb7=; B) 9...f4 10.g4 Nc5 11.Bf1; C) 9...Nc5 10.Bf1 0-0-0–/+ (10...f4 11.Qg2) 11.Nf3; 9.Nf3 f4 10.Qg2 e4 11.Nd4) 9...e4 (9...0-0-0 10.d4–/+ (10.Nf3 Nb6 11.Na3) 10...ed4 11.Nf3; 9...Nc5 10.Nc3 Nf6 11.Nf3) 10.Nc3 (10.Bg7 Qg7 11.Nc3–/+ (11.d4 0-0-0=+)) 10...c5 (10...Nc5 11.Nh3=+ (11.f3–/+); 10...Ngf6 11.Nh3) 11.f3=+ (11.bc6–/+) 11...ef3 12.Nf3 Ne5 13.Ne5 Be5 14.Be2 Nf6 15.0-0 a6 16.a4 0-0 17.Rad1 (17.Qf3 Ne4 18.Rad1 ab5 19.ab5 Rfe8=) 17...Bc3 (17...ab5!? 18.ab5 Ne4=) 18.Bc3+= (worse 18.dc3 ab5 19.ab5 Ne4=+) 18...ab5 19.ab5 Ra4 (19...Ne4 20.Bb2=) 20.Ra1 Rfa8 21.Ra4 Ra4 22.Bf6 (22.d3 Ra2+–) 22...Qf6 23.Qb7 Qd8 24.d4 (24.Rf4 Ra2+–) 24...Ra8? (24...cd4 25.ed4 Qg5 26.Qb8 Kg7 27.Qc7 Bf7+–) 25.dc5 White gets in control 25...dc5 (25...Ra2 26.Bf3 dc5 27.Rd1+–) 26.Rd1 Qc8 (26...Qe8 27.Bf3 Rb8 28.Qc6 Bc4 29.Qc5 Qb5 30.Qd6=) 27.Qc8+– Rc8 28.Rd6 Kf7 29.Ra6 Bd7 (29...Re8 30.Ra7 Re7 31.b6+–) 30.Bf3 Ke7 31.b6 (31.e4 fe4 32.Be4 Be6 33.Ra7 Kd6+–) 31...Kd8 (31...Be6 32.b7 Rb8 33.Ra8 Rb7 34.Bb7 Bc4 35.Rc8+–) 32.Bd5 (32.Kf2 Rb8 33.e4 Bc8+–) 32...Rb8 33.Ra8 (33.b7 Kc7+–) 33...Ra8+– 34.Ba8 Ba4 (34...Be6 35.b7 Kc7 36.e4=) 35.Bd5 (35.e4 Bb3 36.b7 Kc7+–) 35...h6 (35...Bb3 36.Kf2+–) 36.Kf2 Bd1 (36...Bb3 37.h3+–) 37.e4 fe4 38.Be4 Kd7 (38...Bb3 39.b7 Kc7 40.Bd5+–) 39.Bd5 (39.Bg6 Kc6 40.Ke1+–) 39...Ke7?? (better 39...Bg4+–) 40.Ke3 (better 40.b7+–) 40…Kd6 1–0. Mroz,Antoni – Majtyka,W, corr Poland, 1989.

5.Nc3 Nf6 A) 6.Be2 Bd7 (6...Qd7 7.d4 Be7 8.de5 de5 9.c5 c6 10.Nf3 e4+=; 6...Be6 7.Nf3 e4 8.Nd4 a5 9.Ne6 Qe6 10.ba5 Nc6+=) 7.Nf3 e4 8.Nd4 c5 9.Nc2 Nc6 10.b5 Ne5=; B) 6.Nf3 e4 (6...Qd8; 6...Qd7) 7.Nd4 c5 8.Nc2 Nc6 9.d3 Qf7 10.de4 cb4=; C) 6.Nd5 Nd5 (6...Qf7 7.Qa4 Kd8 8.Nf6 Qf6 9.d4 Bd7 10.Qa3 Qe7+=) 7.cd5 Qf7 8.Qb3 Nd7 9.d4 e4 10.Nh3 Nb6=.

5.Be2 Nf6 6.Nc3 (6.a3 Nc6 7.b5 Nb8 8.Nf3 Qf7 9.0-0 a6 10.d4 e4=; 6.Nf3 e4 7.Nd4 c5 8.Nc2 Nc6 9.b5 Ne5 10.d4 ed3=+) 6...Qd7 (6...Bd7 7.Nf3 a5 8.b5 Rg8 9.d4 e4 10.Nd2 g5+–; 6...Be6 7.Nf3 e4 8.Nd4 a5 9.ba5 Bc8 10.0-0 Ra5+–) 7.d4 Be7 8.de5 de5 9.c5 c6 10.Nf3 e4+=.

5.Ne2 Be6 6.d3 Bf7 7.Nd2 h5 (7...Nf6 8.d4=) 8.g3 (8.Nc3 Na6+=) 8...g5 9.f4 Bg7 10.Bg2 c6 11.0-0 (11.b5 gf4 12.gf4 Nh6+=) 11...Nd7 (11...gf4!? 12.gf4 Nh6=) 12.fe5+= Be5 (12...de5 13.Rf5 Bg6 14.Rf2+=) 13.d4 (13.Nd4 Be6 14.b5 Rc8+/-) 13...Bg7 14.e4 (14.Rf5 Qe3 15.Kh1 Nh6 16.Rf7 Kf7=) 14...f4 (better 14...fe4 15.Be4 Ngf6=) 15.gf4+/- gf4 16.Nf4 0-0-0 17.Bh3 (17.Qf3 Nb6+/-) 17...Kb8 18.Qf3 Ngf6 19.Rae1 Ng4 20.Nh5?? (better 20.Bg2+/-) 20...Bh5-+ 21.Bg4 Qh4?? (21...Bg4 22.Qg4 Rdg8-+) 22.h3 (better 22.Bh5 Rh5 23.Qf2 Qg5 24.Kh1+/-) 22...Bg4 23.Qg4 Qg4?? (better 23...Qh6 24.Nf3 Bd4 25.Bd4 Rhg8=+) 24.hg4+- Nb6 (24...Bh6 25.Nf3 Nb6 26.Bc1 Nc4 27.g5+-) 25.Rf7 (25.Re2 Bh6 26.c5 Na4+-) 25...Bh6 26.Bc1 Bd2 27.Bd2 Nc4 28.Kg2?? (better 28.Bf4+-) 28…Nd2-/+ 0-1. dannysmet (1995) - Joybiju (2005), Rated Blitz game, lichess.org, 2020.

5.Nf3 a5 6.b5 Nf6 (6...e4 7.Nd4 Nf6 8.Nc3 Qf7 9.Be2 Nbd7 10.f3 ef3+=; 6...Nd7 7.Be2 Ngf6 8.0-0 g6 9.d4 Bg7 10.de5 de5+=) 7.Be2 (7.Nc3 c6 8.Be2 Qf7 9.0-0 Be7 10.d4 e4+=) 7...g6 (7...Qf7 8.0-0 Be7 9.d4 e4 10.Ng5 Qg6+=) 8.0-0 (8.d4 e4 9.Nfd2 Bh6 10.c5 dc5=) 8...Bg7 (8...e4 9.Ne1 Bg7 10.d4 0-0=) 9.d3 (9.d4 e4 (9...Nbd7+= 10.de5 Ne5+=) 10.Nfd2 0-0+=) 9...0-0 (9...e4 10.Nfd2 ed3=) 10.Nc3 h6 (10...Nbd7=) 11.a4 Kh7 12.Ne1 (12.d4 e4 13.Nd2 Nbd7+=) 12...g5 (12...Be6 13.d4 Nbd7 14.d5=) 13.e4 (13.d4 c5+=) 13...f4 (13...Nbd7 14.ef5 Nc5 15.Ba3 Bf5 16.Bc5 dc5 17.Bf3=) 14.f3 c5 15.bc6 bc6 16.d4 (16.Rb1 Na6=) 16...ed4=+ 17.Qd4 Ng4 18.Qd2 Qa7 19.Kh1 Nf2 20.Rf2 Qf2 21.e5 Bf5 (21...Qe3 22.Qe3 fe3 23.ed6–/+) 22.Nd3 Qe3 23.Qe3 fe3 24.ed6 Nd7 25.Ne4 Bb2 26.Nb2 Be4 27.fe4 Rf2 (27...Rf6 28.c5 Rf2 29.Re1–/+) 28.Re1 Ne5 (better 28...Raf8!? 29.Kg1 Re8=+) 29.Nd1= Rf4 30.Nc3 (30.Ne3 Re8 31.Nd1 Re4 32.Nc3–/+) 30...Rb8–/+ 31.g3 (better 31.Kg1!?–/+) 31...Rf2–+ 32.Rd1?? (32.d7 Nd7 33.Kg1 Rb2–+) 32...Rb3 (better 32...Rb2 33.Rg1 Rc2–+) 33.d7 Nf7 34.e5 Rc3 35.e6 Re2 36.ef7 (36.d8Q Nd8 37.e7–+) 36...Rcc2 37.f8N Kg8 (37...Kg8 38.d8Q Rh2 39.Kg1 Rcg2 40.Kf1 e2 41.Ke1 ed1R 42.Kd1 Rh1) 0–1. Labahn,Wolfgang – Michailow,Sergej, Schleswig Holstein–ch qual, 1998.

5.Nf3 e4 6.Nd4 c5 (6...Bd7 7.Be2 Nf6 8.0-0 d5 9.a3 dc4 10.Bc4 Nc6=; 6...Nf6 7.d3 a5 8.a3 f4 9.de4 Qe4 10.Nc3 Qe7+=) 7.Nc2 Nf6 8.a3 a5 9.d3 ab4 10.ab4 Ra1=.

5.Nf3 Nf6 A) 6.a3 e4 (6...Qd7 7.d4 e4 8.Ng5 d5 9.Nc3 c6 10.Be2 Be7=) 7.Nd4 g6 8.Qa4 Bd7 9.Nb5 Na6 10.d4 c6=; B) 6.Be2 e4 7.Nd4 c5 8.Nc2 Nc6 9.b5 Ne5 10.0-0 Qf7=; C) 6.Nc3 e4 (6...Qd8 7.Be2 Be7 8.0-0 a5 9.Qa4 Qd7 10.b5 0-0+=; 6...Qd7 7.Be2 e4 8.Nd4 c5 9.Nc2 Nc6 10.a3 d5+=) 7.Nd4 c5 8.Nc2 Qf7 9.d4 Be7 10.Nb5 Na6=.

5.b5 Bg7 6.f4 (6.d4 a6=) 6...Nf6 (6...Qh4 7.g3 Qe7 8.Nc3=) 7.fe5=+ de5 (7...Ng4!?=+) 8.Be5+= 0-0 9.Qb3 Ne4 (9...c5 10.bc6 Nc6 11.Bc3+=) 10.Bg7 Kg7 11.Nf3 Qf6 12.Nc3 Nd7 (12...Nc3 13.Qc3 Qc3 14.dc3+=) 13.Rc1+/- Ndc5 14.Qb4 Nc3 (14...a5 15.Qa3 Nc3 16.Qc3 (worse 16.dc3 Qe7 17.Kd1 Qe3-/+; 16.Rc3?! Qd6+/-) 16...Qc3 17.Rc3+/- (worse 17.dc3 Re8=+)) 15.Qc3 (15.Qc5!? b6 16.Qc7 Rf7 17.Qe5+-) 15...Qc3 16.Rc3 (worse 16.dc3 Re8=+) 16...Ne4 17.Ra3 Be6 18.d3 Nc5 19.Ng5 (19.d4 Ne4+/-) 19...Bg8 (19...h6 20.Ne6 Ne6 21.d4+/-) 20.Rc3 (20.d4 h6+/-) 20...h6 21.Nf3 Rfe8 22.Nd4 (better 22.d4 Ne4 23.Rb3+/-) 22...Re3=+ 23.Kd2 Rae8 24.g4 (24.Be2=+) 24...Re1 (24...fg4 25.Rg1 Re1 26.Nc2-/+) 25.Bg2 (better 25.gf5!? Ra1 26.fg6 Kg6 27.Rg1 Kh7 28.Nc2 Ra2 29.Ra3 Ra3 30.Na3=) 25...Rh1=+ 26.Bh1 fg4 27.Bd5 (27.Nb3 Na4 28.Rc2 b6=) 27...Bd5 (better 27...Re5!? 28.Bb7 Rh5-/+) 28.cd5= Nd7?? (28...b6 29.Ne6 Ne6 30.de6 Re6 31.Rc7 Kf8 32.Ra7 Re5+/-) 29.Ne6?? (better 29.Rc7 Re7 30.Rb7+-) 29...Kf6+/- 30.Rc7 Re7 31.Rb7 Nb6 32.Re7 Ke7 33.Nc5 (33.Nd4 Kd6+/-) 33...Kd6 34.Ne4 Kd5 35.Ke3 Nd7 36.Kf4 (36.a4!?+=) 36...Ne5= 37.Nf6 Kd6 (37...Kd4 38.Ng8=) 38.Ng4+= Nd3 (38...Nd3 39.Ke3 Nb4=). hurvajsmanka (1605) - TapakaH41k (1820), Rated Bullet tournament https://lichess, 2014.

5.Nc3 Bg7 6.Nf3 Be6 (6...e4 7.Nd4=) 7.a3 Nd7 (7...Ne7 8.Be2=) 8.Be2 (8.d4 ed4 9.Nd4 Bf7+=) 8...Ngf6 (8...g5 9.Nb5 h6 10.d4=) 9.Ng5 (9.0-0 e4 10.Ng5 Bg8=) 9...Bg8= 10.d4 h6 (10...Nb6 11.de5 Ng4 12.Nf3 Ne5 13.Ne5 de5 14.c5=) 11.Nf3+= e4 12.Nd2 Qe7 13.a4 g5 (13...d5 14.b5=) 14.0-0 g4 15.f3?? (better 15.Nb5 Kd8 16.d5+=) 15...ef3-/+ 16.gf3 gf3 (16...Qe3 17.Kh1 0-0-0-+ (17...Qd4?! 18.Nb5 Qb2 19.Nc7 Kd8 20.Na8=)) 17.Rf3= Ng4 18.Nf1 (18.Rf5?? Ne3 (18...Qe3 19.Kg2 Bd4 20.Bg4 Bc3 21.Bc3 Qc3 22.Qe1 Ne5 23.Nf3 Qe1 24.Re1+/-) 19.Qb1 Bh7-+ (19...Nf5?! 20.Qf5 Bd4 21.Kh1-+)) 18...Qh4 (18...0-0-0!?=) 19.Qe1 (19.Rf5 Ngf6+/-) 19...Qg5 20.Kh1 (20.h3 Ne3 21.Rg3 Nc2 22.Bh5 Kf8 23.Rg5 Bd4 24.Kh1 hg5+=) 20...Ndf6 (20...0-0-0!?=) 21.Bd3+/- Attacking the isolated pawn on f5 21...Ne4 22.Be4 (22.Ne4 fe4 23.Be4 Bc4 24.Bb7 Rb8 25.Bc6 Kd8+/-) 22...fe4+= 23.Ne4 Qg6 24.Ned2 Bc4? (better 24...0-0-0+=) 25.Nc4+- 0-0-0 26.Qg3 Qe6 (26...Rhf8 27.Nfd2 d5 28.h3+-) 27.Ncd2 (27.d5!? Qg6 28.h3 h5+-) 27...h5 28.e4 h4 (28...Rhg8 29.Rc1+-) 29.Qg2 (29.Qg1 Rhf8+-) 29...Rdf8 (29...Rhg8 30.Re1+-) 30.d5 Rf3 (30...Qg6 31.Bg7 Qg7 32.Rc1 Rf3 33.Nf3+- (33.Qf3?! Rf8 34.Qg2 Nf2 35.Kg1 Nh3 36.Kh1 Nf2 37.Kg1 Nh3 38.Kh1 Nf2=)) 31.de6 (31.Qf3?! Qd7 32.Bg7 Qg7+-; worse 31.Nf3 Qg6 32.Bg7 Qg7+-; 31.Bg7?! Qd7 32.Nf3 Qg7+-) 31...Nf2 32.Qf2! Rf2 33.Bg7 Rg8 (33...Re8 34.Bd4 Re2 35.Bf6 Re6 36.Bh4+-) 34.Bh6 (34.Bd4 Re2+-) 34...Rg6 (34...a5 35.Be3 Rf6 36.ba5 Re6 37.Rb1+-) 35.Be3 Rfg2 (35...Re2 36.Nf3 Re6 37.Nd4 (37.Nh4?! Re4 38.Nf5 Re5+-) 37...Re3 38.Ne3 (38.Ne6?! Re4 39.Ng7 Rb4+-) 38...Re4 39.Nef5+-) 36.a5 (36.Rc1 h3+-) 36...h3 (36...Re2 37.e7 Kd7 38.Rc1+-) 37.b5 White plans a6 (37.Ra3!? a6 38.Bd4 Re6 39.Rh3 Re2+-) 37...Re6 (37...a6 38.b6 c6 39.Ng3 Re6 40.Rf1+-) 38.a6 1-0. e4_e5_f4 (1730) - Stevemox (1685), lichess.org, 2020.

5.Nc3 Bh6 6.Nd5 (6.d4 Nd7+=) 6...Nf6 7.d3 (7.d4 Nd5 8.cd5 e4=) 7...0-0 8.Be2 Be6 9.Qb3 (9.Nf6 Qf6 10.Nf3 Bg7=) 9...c6 (9...Nd5 10.cd5 Bf7 11.Bf3=+) 10.Nf6= Qf6 11.Nf3 Nd7 12.0-0 d5 (12...Bg7 13.d4=) 13.cd5 (better 13.Ne5!? Ne5 14.f4+/-) 13...Bd5= 14.Qc2 e4?? (better 14...Bg7=) 15.de4 fe4 (15...Be4 16.Bc4 (16.Bf6?! Bc2 17.Bc4 Rf7+-) 16...Rf7 17.Qb3+- (17.Bf6?! Bc2 18.Bd4 a5+-)) 16.Bf6 Rf6 (16...ef3 17.Bf3 Nf6 18.Bd5 cd5+-) 17.Nd4 Raf8 18.Bc4 (18.Nb3 Bg7+-) 18...Kh8 (18...Rf2 19.Rf2 Be3 20.Raf1 Bd4 21.Qe4 Bf2 22.Rf2+-) 19.Bd5 cd5 20.a4 (20.Qc7 Nb6+-) 20...Ne5 (20...Rf2 21.Qc3 R2f6 22.Rf6 Rf6 23.Nc2+-) 21.Rad1 Nc4 22.b5 (22.Qe2 a6+-) 22...Be3 (22...Ne3 23.Qc3 Nd1 24.Rd1 Bg7+-) 23.fe3 (better 23.Qc3 Bf4 24.Ne6+-) 23...Ne3?? (23...Rf1 24.Rf1 Rf1 25.Kf1 Ne3 26.Ke2 Nc2 27.Nc2 Kg7+-) 24.Nf3 (better 24.Rf6 Rf6 25.Qc8 Kg7 26.Re1+-) 24...Nc2-+ 25.Rf2 (25.Rc1 Ne3 26.Rfe1 Ng2 27.Kg2 Rf3 28.Rc5 Rf2 29.Kg1-+) 25…Nb4 (25...Nb4 26.Rb2 Nd3-+ (26...ef3?! 27.Rb4 Rd8 28.g3-+); 25...ef3?! 26.Rc2 f2 27.Kf1-/+) 0-1. GVG2001 - deathsquare44, Rated Blitz game, lichess.org, 2019.

5.Ne2 Bg7 6.d4 Ne7 7.de5 de5 (7...Nbc6 8.Bc3 de5 9.Na3=) 8.Qd8+= Kd8 9.f4 (9.Nd2 Be6+=) 9...Nd7 (9...Be6 10.Nd2=) 10.Nd2+= c6 (10...Rg8 11.Nb3=) 11.g3 (11.Rd1 Ke8+=) 11...Kc7 (11...a5 12.b5=) 12.e4 (12.Nf3 c5 13.bc5 Nc6+=) 12...Rg8 13.Bg2 ef4 14.Bg7 Rg7 15.Nf4 Ne5 16.0-0 Bd7 17.a4 White plans b5 (17.Rae1 Re8=) 17...h5 (17...g5 18.Nh5 Rf7 19.Nf3 Nf3 20.Rf3=) 18.ef5 Nf5 19.Rae1 Re8 20.b5 (20.Nf3 Nf3 (worse 20...Nc4 21.Re8 Be8 22.Ne6 Kd6 23.Ng7 Ng7 24.Ng5+/-) 21.Bf3 Nd4 22.Re8 Be8=) 20...h4 21.bc6 Bc6 22.Nd5 (22.Bc6 bc6 23.Ng6 Ng3 24.Ne5 (worse 24.Re5 Nf1 25.Re8 Nd2 26.Re7 Re7 27.Ne7 Nc4-/+) 24...Ne4 25.Kh1 Nd2 26.Rf6=) 22...Bd5=+ 23.Bd5 (23.cd5!? hg3 24.hg3 Ng3 25.Rf6=+) 23...hg3-/+ 24.hg3 Ng3 25.Kg2? (25.Rf6 Rge7-/+) 25...Nf5?? (better 25...Nf1 26.Nf1 b6-+) 26.Nf3-/+ Rge7 27.Rb1 (27.Ne5!? Re5 28.Re5 Re5 29.Kf2-/+) 27...b6 28.a5 (28.Ne5 Ne3 29.Kg1 Nf1 30.Ng6 Rg7 31.Kf1 Rg6-+) 28...Nf3?? (28...Ne3 29.Kg1 Nf1 30.ab6 ab6 31.Rf1-+) 29.Rf3? (better 29.ab6 ab6 30.Kf3-/+) 29...Nd4?? (better 29...Nh4 30.Kg3 Nf3 31.ab6 ab6 32.Kf3 Re1-+) 30.Rf7 (better 30.ab6!? ab6 31.Rf6=) 30...Rf7-/+ 31.Bf7 Re2 32.Kf1 Rc2 33.ab6 ab6 34.Bg6 Rc4 35.Bd3 Rc3 36.Bh7 Kc6 37.Kf2 (37.Ke1 Rh3 38.Be4 Kc5 39.Rc1 Kd6-/+) 37...Kc5 38.Rg1 b5 39.Rg7 b4 40.Rc7 Nc6 41.Ke2 Kb6 42.Rc8?? (42.Rf7 b3-+) 42...b3 (better 42...Nd4 43.Kd2 Rc8-+) 43.Kd2 Rc2?? (better 43...Rc4-+) 44.Bc2+= bc2 45.Kc2 Kb7 46.Rh8 Kb6 47.Kc3 Kb5 48.Rh5 Kb6 49.Kc4 Na5 50.Kd5 Nb3 51.Rh4 Kc7 (51...Kb5 52.Rc4+/-) 52.Rh6 Nd2 53.Rc6 Kd7 54.Ra6 Nf3 55.Ra7 Ke8 56.Ke6 Kf8?? (better 56...Nd4 57.Kf6 Kd8+/-) 57.Kf6 (57.Rf7 Kg8 58.Rf3 Kg7 59.Rf6 Kg8 60.Rg6 Kh8 61.Kf6 Kh7 62.Kf7 Kh8 63.Rh6) 57...Ke8+/- 58.Re7 Kd8 59.Ra7 Kc8 1-0. dannysmet (2045) - Pradeep2753 (2015), Rated Blitz game, lichess.org, 2021.

6.de5 Qd7 7.Nf3 (7.f4 de5 8.Nf3 Qd1 9.Kd1 Nf6=) 7...Nc6 8.e6 (8.Be2 Ne5 (worse 8...de5 9.b5 Qd1 10.Kd1+–) 9.Ne5 de5+=) 8...Qe7 9.Qb3 (9.Bg7 Qg7 10.Nd4 f4=) 9...Be6 10.Nc3 Nh6 (10...Nf6!?=) 11.Nd5+= Bd5 12.cd5 Ne5 (12...Bb2 13.Qb2 Ne5 14.Bb5 Kf7 15.Nd4+–) 13.Be2 (13.Bb5 Kf8 14.Nd4 Kf7+–) 13...0-0 (13...Nf3 14.Bf3 Bb2 15.Qb2+=) 14.Nd4+– Rfc8 (14...Rfe8 15.Rc1 Bf6 16.0-0+–) 15.Ne6 Bf6 16.h3 (16.Rc1 Nhf7+–) 16...Nhf7 17.Rc1 (17.g4 fg4 18.hg4 Nd7+–) 17...c6 (17...Nd8 18.Nd8 Qd8 19.g4+–) 18.0-0+– Nd7 (18...Re8 19.b5+=) 19.Bf6 (19.dc6 Rc6 20.Nd4 Rb6+–) 19...Nf6 20.dc6 bc6 (20...Rc6 21.Nd4 Rc1 22.Rc1+–) 21.Nd4 White prepares the advance b5 (21.Ba6+–) 21...Qd7? (21...c5 22.Ba6 Rc7 23.bc5 Rc5 24.Ne6 Rc1 25.Rc1+–) 22.Bf3?? (better 22.Ba6+–) 22...d5 (22...Ne4 23.Qc2 c5 24.Be4 fe4 25.bc5 dc5 26.Nb3+–) 23.b5 (23.Qc3 Nd8+–) 23...c5 (23...cb5 24.Nb5 Rc1 25.Rc1=) 24.Nc6+= c4 25.Qb4 (25.Qc3 Ne4 26.Qd4+–) 25...Nd6 (better 25...Rc7!?+=) 26.Rfd1+– a5 (26...Qe6 27.Rd5! Rc6 28.Rcd1+–) 27.Qc5 (better 27.Qc3 Nb5 28.Qf6 Rc6 29.Qc6 Qc6 30.Bd5 Qd5 31.Rd5+–) 27...Kg7? (better 27...Nb5 28.Rc4 Na7 29.Rd5 Qf7 (29...Rc6? 30.Rd7 Rc5 31.Rc5 Nd7 32.Ra5+–) 30.Ne7 Kg7 31.Nc8 Rc8+–) 28.Bd5 Nd5 (28...Qc7 29.a4 Nde4 30.Qc4 Nd5 31.Rd5 Qf7+–) 29.Qd5 (better 29.Rd5 Rd8+–) 29...Rd8 30.Nd8 Rd8 31.Rc4 Qe7 32.Rcd4 (32.Qc5 Kf7 33.Rcd4 Nb7 34.Qc4 Kf8 35.Rd8 Nd8+–) 32...Nf7 33.Qc6 Rf8 (33...Rd4 34.Rd4 Qe5 35.Rd7 Qa1 36.Kh2 Qe5 37.f4 Qe3 38.Qc7+–) 34.Rd7 (34.Qc3 Kg8+–) 34...Qb4 (34...Qa3 35.Qe6 Qb2 36.Ra7+–) 35.b6 Kh6 (35...f4+–) 36.Qc7 Ng5 37.b7 1–0. jaddwarrior (2075) – ed54 (2065), ChessWorld.net, 2016.

6.de5 de5 7.Qd8 Kd8 8.Nc3 Ke7 9.Nd5 Kd6 10.Rd1 Kc6 11.b5 Kd7 12.Nf3 c6 13.Nb6 Kc7 14.Na8 1–0. barba1 (2270) – m3011 (1705), internet, 2014.

6.de5 de5 7.Qd8 Kd8 8.Nf3 c6 9.Be5 Be5 10.Ne5 Ke7 11.Nc3 Nf6 12.Rd1 Nbd7 13.Nd7 Bd7 14.Be2 Rad8 15.Bf3 Be6 16.Rd8 Rd8 17.Ke2?? (better 17.Be2!?+=) 17...Bc4=+ 18.Ke1 Nd5 (better 18...Rd3 19.Nb1 Ba2-+) 19.Be2?? (better 19.Nd5 Bd5 20.Bd5 Rd5 21.Ke2=+) 19...Nc3-+ 20.Bc4 (20.Bf3 Na2 21.Be2 Be2 22.Ke2 Nb4 23.Ra1-+) 20…Rd1 0-1. hurvajsmanka (1750) - quickchess (2165), Rated Bullet tournament https://lichess, 2014.

6.Qc2 Nf6 7.Be2 e4 8.Nd4 Nc6 (8...c5!? 9.bc5 dc5=) 9.Nc6+= bc6 10.0-0 Bb7 11.a4 0-0 12.d3 d5 13.Nd2 ed3 14.Bd3 Ne4 15.Be4 Bb2 16.Qb2 de4 17.Rfd1 White plans b5 17...a5? (better is 17...Qf6!? 18.Qf6 Rf6+/–) 18.Ne4!+– Qd1? (18...fe4 19.Rd4 Double attack (19.Rd8 Discovered attack; 19.Rd4 Decoy)) 19.Rd1 fe4 20.b5 (better is 20.Rd7!? Rf7 21.Rf7 Kf7+–) 20...cb5 (20...Rfd8 21.Rd8 Rd8 22.h4+–) 21.cb5 Rab8 (21...Rf7+–) 22.Rd7 Rf7 23.Qb3 Rbf8 24.Rc7 Ba8 25.Rf7 Rf7 26.h3 Kg7 (26...Bb7 27.Qc3+–) 27.Qc3 Kh6 28.Qa5 Bd5 29.b6 Bb7 30.Qc5 Rd7 (30...Kg7 31.a5+–) 31.a5 (better is 31.Qf8 Rg7 32.h4+–) 31...Rd1 32.Kh2 Ra1 33.Qc7 Ra5+– 34.Qb7 Rf5 35.Qe4 Rf2 36.b7 Rb2 37.b8Q! Rb8 38.Qf4 g5 39.Qb8 Kh5 40.Kg3 Kh6 41.Kg4 Kg6 42.Qd6 Kg7 43.Kg5 Kg8 44.Kh6 Kf7 45.Kh7 Ke8 46.Qc7 Kf8 47.Kg6 Ke8 48.Kf6 Kf8 49.Qf7# 1–0. ourang – gitarman, internet, 2013.

6.d4 e4 7.Nfd2 Be6 8.Nc3 (8.Be2 Qg5 9.0-0 Nf6+=) 8...c6 (8...Nf6 9.Be2=) 9.d5 Bf7 10.g4 (10.Be2 Nf6=) 10...Ne7 (10...Nf6 11.Be2=) 11.Qb3 (11.gf5 gf5 12.Rg1=) 11...Nd7 (11...Rg8!?=) 12.dc6 (12.Nce4 Ne5 13.gf5 Nf5+–) 12...bc6 13.Nce4 fe4 (13...Ne5!? 14.f4 fe4 15.fe5 de5 16.Ne4 0-0+–) 14.Bg7+– Rg8 15.Bd4 c5 (15...d5!? 16.Qc2+–) 16.bc5 (16.Ne4?! cd4 17.Nd6 Kf8+–) 16...dc5 17.Bc3 Rb8 (17...Be6 18.Qd1+–) 18.Qd1 (18.Qa4 Nc8 19.Ne4 Ke7+–) 18...Nc6 (18...Nc8 19.Ne4 Qe7 20.Qd3+–) 19.Ne4 Kf8 (19...Rf8+–) 20.Qd6 Qe7 21.Qc6 Ne5 (21...Qe6 22.Nd6 Ke7 23.Rd1+–) 22.Qf6 (better 22.Qc5 Nc4 23.Bd4 Nb6+–) 22...Ng4 (22...Nd7 23.Qf4 g5+–) 23.Qf4 Re8 (23...Rb6 24.Qg4 h6 25.Rd1+–) 24.Nf6 Nf6 (24...Rd8 25.Nh7 Ke8 26.Qg4+–) 25.Bf6 Qe6 26.Qh6 Rg7 27.Qg7 1–0. Janek – Gutes, internet free game, 2017.

6.d4 e4 7.Nfd2 Nh6 8.Be2 (8.Nc3 0-0+=) 8...0-0 (8...c5 9.0-0=) 9.Nc3+= c6 (9...Nc6 10.Nd5+=) 10.0-0 b6 (10...Nd7 11.h3+=) 11.Qb3 Kh8 12.a4 White intends b5 12...a6 (12...c5 13.bc5 dc5 14.d5+–) 13.b5 ab5 14.ab5 Ra1 15.Ra1 c5 16.dc5 dc5 17.Nd5 Bb7 18.h4 Bd5 19.cd5 Nd7 (19...Qh4 20.Ra7 Rf7 21.Ra8+–) 20.Nc4+– Nf7 (20...Qb8 21.d6+–) 21.Ra7 Rg8? (better 21...Nf6 22.Ne5 Ne5 23.Be5 Re8+–) 22.Nb6! Nb6 (22...Nb6 23.Rf7 Pinning (23.Rf7 Deflection); 22...Qb6 23.Bg7 Double attack (23.Rd7 Deflection; 23.Rd7 Overloading)) 23.Rf7 Qd5 (23...f4+–) 24.Bg7 Rg7 25.Rf8 Rg8 26.Qc3 (26.Qc3 Qd4 27.Rg8 Kg8 28.ed4 c4 29.Qa5 Kf7 30.Qb6 e3 31.Bc4 Kg7 32.fe3 Kh6 33.Qf6 f4 34.ef4 Kh5 35.Qg5) 1–0. Dalia – Calau, internet, 2019.

6.Be2 Nf6 7.0-0 0-0 8.d3 b6 9.Nbd2 Bb7 10.b5 Nbd7 11.a4 Nc5 12.d4 Nce4 13.Ne4 fe4 14.de5 ef3 15.Bf3 Bf3 16.Qf3 de5 17.Be5 Qe7 18.Bf6 Qf6 19.Qd5 Rf7 20.Qa8 Bf8 21.Rad1 Kg7 22.Rd4 Bd6 23.g3 Qe6 24.Qd5 Qh3 25.Rh4 Qd7 26.Qg5 Be7 27.Qh6 Kg8 28.Rd4 Qf5 29.Qf4 Qh3 30.Qc7 Bc5 31.Rd8 Kg7 32.Qe5 Kh6 33.Rd5 Be3 34.Qe3 1–0. bauska18 – gamer77, internet, 2014.

5.Nc3 Bd7 6.Qb3 Be7 7.c5 Nc6 8.Na4 a5.

5.Nc3 Be7 6.c5 (6.Qb3 0-0 7.c5 Kh8 8.cd6 cd6) 6...Nc6 7.Qa4 0-0 8.b5 Nd4.

5.d3 Be7 6.g3 0-0 7.Bg2 c6 8.Nbd2 Na6 9.0-0 (9.a3!?=) 9...Nb4–/+ 10.a3 Na6 11.Rc1 Nc7 12.c5 dc5 13.Ne5 Nfd5 14.Qb3 Kh8 15.e4 fe4 16.de4 c4 (16...Nf6!? 17.Qc2 Qe8+=) 17.Nec4 Nf6 18.Rcd1 Qe8 (18...b5 19.Ne5 Qe8 20.Qc3=) 19.e5+= Nfd5 20.Rfe1 Qf7 21.Ne4 b5 (21...Nb6 22.Na5 Qb3 23.Nb3=) 22.Na5 (22.Ncd6 Qg6+/–) 22...Bd7 (22...c5 23.Nc6 c4 24.Qc2=) 23.f4 Bc5?? (better is 23...Qg6+=) 24.Nc5+– Bg4 (24...Be8 25.Rc1+–) 25.e6 (better is 25.Nc6 Bd1 26.Rd1 Nb6 27.Qf7 Rf7+–) 25...Bd1 26.Qd1 (26.ef7?! Bb3 27.Ncb3 Rf7 28.Nc6 Raf8+–; 26.Rd1?! Ne6 27.Nc6 Nc5 28.Qd5 Ne6+–) 26...Qe7 27.Nd7 (better is 27.Qd4!? Rfe8+–) 27...Ne6 28.Nf8 Qc5 (28...Rf8 29.Bd5 cd5 30.Qd5 Qc5 31.Qc5 Nc5 32.Re7+–) 29.Kh1 Nf8 30.Nc6! Ne3 (30...Qc6 31.Qd5 Remove defender) 31.Bg7! Kg7 32.Qa1 Kh6 33.Ne5 Ng2 (33...Rc8 34.Nf7 Kg6 35.Nh8 Kf5 36.Bh3 Ke4 37.Bc8+–) 34.Kg2 (34.Ng4 Kg6 35.Qf6 Kh5 36.Re5 Kg4 37.Qf5 Kf3 38.Qh5 Kf2 39.Qe2) 34...Qd5 (34...Nd7 35.Nd7 Qd6+–) 35.Nf3 (better is 35.Kh3 Nd7 36.Rd1 Qd1 37.Qd1 Ne5 38.fe5+–) 35...Ng6 36.Qc1 Qf5 37.Ne5 (37.Qe3!? Rd8+–) 37...Rc8+/– 38.Qe3 Rc2 39.Kg1 Qh3 40.f5 Kg7 41.f6 (worse is 41.Qa7 Kh6 42.Qe3 Kg7 43.f6 Kf6 44.Qf3 Kg7+–) 41...Kf6 42.Qf3 Qf5 (42...Kg7 43.Ng4 Rg2 44.Kh1 Rh2 45.Nh2 Qd7+–) 43.Nd7 Kg5 44.h4 Nh4 45.gh4 Kg6 46.Nf8 1–0. croach (2370) – jupiter (2390), net–chess.com, 2013.

5.g3 Be7 6.Bg2 0-0 7.0-0 Be6 8.d3 Nbd7 9.Nc3 Rb8 (9...h6 10.Nh4=) 10.e3 (10.Ng5 Bf7+/–) 10...Nb6 11.a4 c6 12.a5 Nbd7 13.Qe2 (13.Ng5 Bf7+/–) 13...Qc7 14.b5 (better is 14.Ng5 Bf7 15.f4+=) 14...c5?? (14...Nc5!?=) 15.Rfb1 (15.Ng5 Bf7+–) 15...b6 16.Nd2 (16.Ng5 Bf7+/–) 16...Rfc8 17.ab6 ab6 18.Ra2 Ra8?? (18...Rf8 19.Rba1+/–) 19.Rba1 (better is 19.Ba8 Re8 20.Rba1+–) 19...Ra2+/– 20.Ra2 Nf8 21.Qf1 Ng6 22.Qa1 h6 23.Ra8 Ra8 24.Qa8 Kh7 25.Qc6 Bd8 26.Na4 (26.f4 Ne7 27.Qc7 Bc7+=) 26...Bd7 (26...Qa7!? 27.Qa8 Qa8 28.Ba8 d5=) 27.Qc7+= Bc7 28.Nf3 (28.f4 Be6+=) 28...e4 29.de4 Ne4 (worse is 29...fe4 30.Nd2 d5 31.Bf6 gf6 32.cd5+/–) 30.Ne1 (30.Nc3 Nc3 31.Bc3 Be6=) 30...Nd2 (better is 30...Be6–/+) 31.Bf1? (better is 31.Bd5=) 31...Be6 32.Nc3 Nc4 33.Bc4 Bc4 34.Nd5?? (better is 34.Kg2–+) 34...Bd5 35.Nc2 0–1. kannisogoet – brudas1995, internet, 2013.

6.Nfd2 c6 7.e3= d5 8.c5 a5 9.ba5 Qa5 10.Nc3 (10.Be2 b6=) 10...Be7 11.Qc2 Na6 12.Be2 Nb4 13.Qb3 Nd3 14.Bd3 ed3 15.0-0 Ne4 16.Nce4 (16.Rfd1!?=) 16...fe4=+ (16...de4?! 17.Nc4 Qc7 18.Nb6=) 17.Bc3 Qa3 18.Qa3 Ra3 19.Bb4 Ra8 20.f3 0-0 (better 20...Bg5!? 21.Kf2 0-0-/+) 21.fe4+= Bg5 (21...Rf1 22.Kf1 Bg4 23.ed5 cd5 24.Nb3+=) 22.Rf8 Kf8 23.ed5 (better 23.Kf2+=) 23...Be3=+ 24.Kh1 Bd4 25.dc6? (better 25.Rf1 Kg8 26.a3=+) 25...Ba1-+ 26.cb7 Bb7 27.c6 Ke8 (27...Kg8 28.cb7 Rb8 29.a3-+) 28.cb7 Rb8 29.Nc4 Kd7 30.Na5 Bd4 (30...Be5 31.a4-+) 31.Bd2 (31.g3 Kc7-+) 31...Rf8 (31...Bb6 32.Nb3 Rb7 33.g3-+) 32.h4 Kc7 33.b8Q (33.Bb4 Rf6-+) 33...Rb8 34.Bf4 (34.Nb3 Be5-+) 34...Kb6 (better 34...Kc8!? 35.Nb3 Be5 36.Bc1-+) 35.Bb8 d2?? (better 35...Ka5 36.Bf4 Kb4-+) 36.Nc4+/- Kb7 37.Nd2 Kb8 38.Nf3 Be3 39.g4 Kb7 40.Kg2 Kc6 41.Ng5 h6 (41...Bg5 42.hg5 Kd5 43.Kf3+-) 42.Ne6+- g6 43.Nf8 (43.Kf3 Bc1+-) 43...g5+/- 44.hg5 hg5 (44...Bg5!? 45.Ne6 Bf6+/-) 45.Kf3+- Bc1 46.Ne6 (46.Ke4 Kb5+-) 46...Kb5 (46...Kd5 47.Nd8+-) 47.Ke4 Kc6 (47...Kb4 48.Kf5+-) 48.Kf5 Kd6 (48...Kb5 49.Ng5 Kb4 50.Ne4+-) 49.Ng5 1-0. amnezia (1890) - Nagval (1885), Rated Blitz game, lichess.org, 2014.

6.Nfd2 d5 7.b5 (7.a3 Be7 8.e3 0-0 9.Be2 a5 10.b5 Be6 11.c5 Ne8=) 7...c6 (7...a6 8.Qa4 (8.e3=+ ab5 9.cb5 Bd6 10.Qb3 0-0 11.Ba3 Be6=+) 8...Nbd7 9.e3 Nb6 10.Qb3 dc4 11.Nc4 Be6=+) 8.a4 (8.e3 cb5 9.cb5 f4 10.ef4 Bd6 11.g3 0-0=) 8...Be6 (8...e3 9.fe3 dc4 10.Qc2 Be6 11.e4 Ne4=+) 9.e3 Bd6 (9...dc4 10.Bc4 Bc4 11.Nc4 a6=) 10.Qb3 0-0 11.Nc3 Nbd7 12.a5 a6 13.c5 Be7 14.bc6 bc6 15.Na4 Ra7 16.Nb6 Nb8 17.f4 Ne8 18.Nb1 g5 19.Na3 Bf6 20.Nc2 Rg7 21.g3 h5 22.0-0-0 h4 23.Nb4 Nc7 24.Bc3 Bf7 25.Be2 Kh7 26.Rdf1 gf4 27.gf4 Rfg8 28.Qd1 h3 29.Be1 Bh4 30.Bh5 Kh6 31.Bf7 Rf7 32.Bd2 Rg2 33.Rhg1 Rfg7 34.Rh1 Nb5 35.Nc2 Qf6 36.Be1 Be1 37.Qe1 Qg6 38.Qh4 Qh5 39.Qf6 Kh7 40.Re1 R2g6 41.Qf8 Nd7 42.Qe8 Nf6 43.Qc6 Ng4 44.Qc8 Nf2 45.Nd7 Rd7 46.Qd7 Rg7 47.Qe6 Nh1 48.Rh1 Rg2 49.Re1 Rh2 50.Qa6 Nc7 51.Qb7 Rg2 52.a6 Rg7 53.a7 h2 54.Rh1 Qe2 55.Qc7 Rc7 56.a8Q Rg7 57.Qd5 Rg1 58.Kb2 Qb5 59.Kc3 Qa5 60.Kb3 Qb5 61.Nb4 Rh1 62.Qf5 Kg7 63.Qe5 Kg8 64.Qe6 Kg7 65.Qe7 Kg8 66.Qg5 Kf8 67.Qf5 Kg7 ½–½. Orev,Petar – Bobekov,Radko, BUL–ch (16), 1964.

6.Nfd2 e3 7.fe3 d5 8.a3 Ng4 9.cd5 Ne3 10.Qa4 Bd7 11.Qb3 f4=+.

6.Nfd2 Be7 7.Nc3 d5 8.a3 Be6 9.e3 0-0 10.cd5 Nd5 11.Bc4 c6=.

6.Nfd2 f4 7.e3 fe3 8.fe3 d5 9.cd5 Qd5 10.a3 Qg5 11.Qb3 a5=+.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3).

5.e3 Be7 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 Be7).