2.Nf3 a6 3.Bb2 e5 4.a3 d6 5.e3 Nc6 6.Be2 Be7 7.d4 ed4 8.Nd4 Bd7 9.c4 0-0 10.0-0 Ne5 11.Nd2 c5 12.N4f3 Nf3 (12...Qc7 13.Qb3=) 13.Nf3 Qc7 14.Qc2 Bg4 (14...h6 15.Bd3+=) 15.h3+= Bh5 16.Nh4 (16.Rfd1 Rfc8+=) 16...Be2= 17.Qe2 Rfd8 (17...g6 18.Nf3=) 18.Nf5+= b6 (18...g6!? 19.Nh6 Kg7+/–) 19.Qf3 Ne8?? (better is 19...Qd7+/–) 20.Bg7!+– Ng7 (20...Qd7 21.Bh6 Bf6 22.Qg4 Kh8+–) 21.Qg3 (better is 21.Nh6 Kh8 22.Nf7 Kg8 23.Nh6 (23.Nd8?! Rd8 24.Rfd1 Ne6+/–) 23...Kh8 24.Qd5+–) 21...Bf6–+ 22.f4?? (better is 22.Nh6 Kf8 23.Rab1–+) 22...Ba1 (better is 22...Kh8 23.Ng7 Ba1–+ (worse is 23...Bg7 24.Rab1–+)) 23.Rf3 (23.Ra1 f6 24.Qg4–+) 23...Kh8 (23...cb4 24.ab4 Qc4 25.Nh6 Kh8 26.Qe1–+) 24.Nh6 (24.Qe1 Bf6 25.Nh6 cb4 26.Qb4 d5 27.cd5 Rd5–+) 24...Qe7 (24...cb4!? 25.ab4 Qc4 26.Qe1–+) 25.f5 (25.Qg5 Rd7–+) 25...Be5 (25...Bf6 26.Qe1–+) 26.Qf2 (26.f6 Bf6 (26...Bg3?! 27.fe7 Re8 28.Nf7 Kg8 29.Nh6 Kh8 30.Nf7 Kg8 31.Nh6 Kh8 32.Nf7=) 27.Qf4 Ne8–+) 26...f6 (26...Nh5 27.Qc2–+) 27.g4 (27.Qd2 Qb7–+) 27...Rf8 28.h4 (28.Qe2 cb4 29.ab4 a5 30.ba5 Ra5–+) 28...Rae8 (better is 28...Rac8 29.Qe2–+) 29.g5 (29.Qc2 Rc8 30.bc5 Rc5–+) 29...fg5 30.Ng4 Bf6 (better is 30...Nh5 31.bc5 bc5 32.Ne5 de5 33.Qd2–+) 31.hg5 Nf5! 32.gf6 (32.Rf5 Qe4 Double attack (32...Qe4 Decoy)) 32...Rf6 (better is 32...Qe4 33.Rf4 Qb1 34.Kh2 Re4 35.Rf5 Rg4–+) 33.Nf6 Qf6 34.Rf5 Rg8 35.Kh1 Qh6 (35...Qg7 36.Rh5–+) 36.Qh2–/+ Qe3 (36...Qg7 37.Qf2–/+) 37.Rf1?? (better is 37.Qb2 Qd4 38.Qd4 cd4 39.Rd5+=) 37...Qe4 (37...Qe4 38.Rf3 Qf3 39.Qg2 Qg2) 0–1. Mello,Ugo Francisco Schia – Rosa,Pedro Paulo (1745), Goiania BRA, City Ch, 2014. (=1.Nf3 Nf6 2.b4 a6)

2.Nf3 Na6 3.b5 Nc5 4.d4 (4.Nc3 e6=) 4...Nce4=+ 5.Nbd2?? (5.Nfd2 e6=+) 5...e6 (better 5...Nc3–+) 6.Ne4=+ Ne4 7.Qd3 Bb4 8.Bd2 Bd2 (8...Nd2 9.Nd2 0-0 10.e3=+) 9.Nd2= Nd2 10.Qd2 d5 (10...0-0 11.e3=) 11.e3 0-0 12.Bd3 f6 (12...Qd6 13.c4=) 13.e4 (13.c4 Qd6+=) 13...e5 (13...a6 14.ba6 de4 15.Be4 Ra6 16.c3=) 14.c3 (14.de5!? Be6 15.ef6 Qf6 16.0-0 de4 17.Be4+–) 14...f5 15.ef5 e4 16.Be2 Rf5 17.0-0-0? (17.0-0 Qh4=+) 17...b6?? (better 17...Rf2 18.Qe3 Rg2–+) 18.f3–/+ Qe7 (18...ef3!? 19.Bd3 Rh5–/+) 19.fe4=+ de4 (worse 19...Qe4 20.Bd3 Qe7 21.Bf5 Bf5 22.Rhf1+–) 20.Qe3 (20.Rhf1 Rf1 21.Rf1 a6=+) 20...Be6 (20...a6 21.Bc4 Kh8 22.ba6 Qa3 23.Kb1 Ba6 24.Ba6 Ra6–/+) 21.g4? (better 21.Kb2=) 21...Qa3–+ 22.Kd2 Rg5?? (better 22...Qa2 23.Ke1 Rf7–+) 23.Qe4 (better 23.Qg5 Qb2 24.Ke1 Qc3 25.Kf2 Rf8 26.Kg2+–) 23...Re8 (better 23...Bd5 24.Qb1 Bh1 25.Rh1 Kh8=+) 24.Qf4?? (better 24.Rde1 Qa2 25.Qc2=) 24...Qb2 25.Ke1 Bg4 (25...Bg4 26.Qf7 Kf7 27.Rf1 Kg6 28.Rf6 Kf6 29.Rd2 Re2 30.Kf1 Qd2 31.c4 Bh3) 0–1. yodamo – Fool`s Mate, ChessWorld.net, 2011. (=1.Nf3 Nf6 2.b4 Na6)

2.Nf3 g5 3.Ng5+= Bh6 4.d4 Rg8? (better is 4...Bg7+/–) 5.Nf7!+– Rg5?? (5...Kf7 6.Bh6) 6.Nd8 Kd8 (6...Rg6 7.Bh6 Rh6 8.Nb7 Bb7 9.e3+–) 7.Bg5 (7...Bg5 8.e3+–) 1–0. market (1840) – NN, GameColony.com, 2002.

2.Nf3 h6 3.e3 e6 4.a3 Be7 5.c4 0-0 6.Be2 d6 7.Nc3 e5 8.Qc2 Be6 9.d4 (9.0-0 a5 10.Bb2 Re8=) 9...c6 (9...ed4 10.Nd4 Nc6 11.Nc6 bc6 12.0-0+=) 10.0-0 ed4 11.Nd4 Bd7 (11...c5 12.Ne6 fe6 13.bc5 dc5 14.Rd1+=) 12.Rd1 a6 13.Bb2 b5 14.h3 c5 (14...Qc8 15.Ne4+/-) 15.bc5 dc5 16.Nf5 Qe8 (16...b4 17.Ne4 a5 18.Bf3+-) 17.Nd5 (17.cb5 ab5 18.Nb5 Bf5 19.Qf5 Qc8+-) 17...Nd5 18.Ng7 (18.cd5?! Bf5 19.Qf5 Qd7 20.Qd7 Nd7+=) 18...Ne3 19.Qc3 Nd1 20.Rd1 b4 21.ab4 cb4 22.Qg3 Qd8 (22...Bh4 23.Ne8 Bg3 24.Nf6 Kg7 25.Nd7 f6 26.Nf8 Kf8 27.Rd8 Ke7+-) 23.Ne6 Bg5 24.Nd8 Rd8 25.h4 f6 (25...Nc6 26.hg5 h5+-) 26.hg5 fg5 (26...Bg4 27.Rd8 Kh7 28.gf6 h5 29.Bd3 Kh6 30.Qe3) 27.Qd6 (27.Qe5 Kf8 28.Qg7 Ke8 29.Bh5) 27...Nc6 (27...Be8 28.Qe6 Kh7 29.Rd8 Nc6 30.Bd3 Bg6 31.Bg6) 28.Qg6 Kf8 29.Qg7 Ke8 30.Bh5 1-0. pcmvr - mpopp (2175), net-chess.com, 2021.

3.ba5 e6 4.Nc3 Bc5 5.d4 Bb4 6.Bd2 Ba5 7.e4 (7.e3 0-0=) 7...d6 (7...Bc3!? 8.Bc3 Ne4=+) 8.Bd3= Nc6 9.h3 Bb6 10.Be3 Ne7 (10...e5 11.Ne2=) 11.0-0+= c6 12.e5 Nfd5 13.Nd5 cd5 14.ed6 Qd6 15.Ne5 0-0 16.c3 (16.c4 f6 17.c5 Bc5=) 16...Nc6 (16...f6 17.Nf3=) 17.f4 (17.Bf4 Ne5 18.Qh5 h6=) 17...f6 (17...Bc7 18.Qc2 h6 19.Rab1=) 18.Nc6 (18.Qh5 f5+=) 18...bc6 (18...Qc6 19.Qc2 h6 20.Rab1=) 19.a4 (19.Qb1!? Ba5 20.Bh7 Kh8 21.Qc2+=) 19...c5 20.dc5 (20.Qc2 h6=) 20...Bc5=+ 21.Qd2 Qb6 (21...Ba6 22.Rfe1=+) 22.Rf3 Bd7 23.c4 Bc6 24.a5+= d4 25.ab6 Ra1 26.Rf1 de3 27.Qe2 Ra3?? 28.f5?? e5 29.Rb1 Rb8 30.h4 Rd8 31.b7 Rb8 32.g4 Rb7 33.Rb7 Bb7 34.g5?? e4 35.Be4?? Be4–+ 36.gf6 Bf5 37.Kf1 Bd3 38.Ke1 Bb4 39.Kf1–+ Be2 40.Ke2 gf6 (41.Kf3 Rc3–+) 0–1. maz_manchester – dugmak, ChessWorld.net, 2005.

3.b5 (--> 1.b4 a5 2.b5 Nf6 3.Nf3).

3.c3 g6 4.Bb2 Bg7 5.ba5 Ra5 6.c4 0-0 7.e3 c6 8.d4 d5 9.c5 Bf5 10.Nbd2 Nbd7 11.a4 Ne4 12.Ne4 Be4 13.Bd3 Bd3 14.Qd3 e5 15.Bc3 e4 16.Qd2 ef3 17.Ba5 fg2 18.Rg1 Qg5 19.Bb6 f5 20.a5 f4 21.ef4 Re8 22.Kd1 Qg4 23.Kc1 Re2 24.Qd1 Qf4 25.Kb1 Qe4 26.Kc1 Bh6 27.f4 Bf4 0–1. guest1244 – guest1071, ICS, 2001.

3.Nc3? ab4-/+ 4.Nb5 (4.Nb1 e6-/+) 4...c6 (4...e5 5.Ne5 Ra5 6.e4-+) 5.Nbd4-/+ d5 6.a3 (6.Ne5 Nfd7 7.f4 Ne5 8.fe5 Bg4-+) 6...ba3 (6...Nbd7!? 7.Nb3 e5 8.ab4 Ra1 9.Na1 Bb4-+) 7.Ba3-/+ e6 (7...Ne4 8.Nb3-/+) 8.Bf8=+ Kf8?? (8...Ra1 9.Qa1 Rf8 10.e3=+) 9.e3 (better 9.Ra8 Nbd7 10.Qb1+-) 9...Ra1=+ 10.Qa1 Nbd7 11.Bd3? (11.Nb3 c5=+) 11...g6 (11...e5 12.Qa3 c5 13.Ne5 Ne5 14.Qc5 Kg8 15.Qc3-+) 12.0-0? (12.Nb3 Kg7=+) 12...Kg7 (12...e5 13.Nc6 bc6 14.Ne5 Ne5 15.Qe5-+) 13.g4 (13.Nb3 Qc7=+) 13...h6 (13...e5 14.g5 Ne4 15.Ne2-+) 14.h3? (better 14.g5 e5 15.gf6 Qf6 16.Be2 ed4 17.Qd4-/+) 14...e5-+ 15.Nc6 bc6 16.Ne5 Ne5 17.Qe5 Re8 18.Qd4 Qd6 19.f4 Kg8 20.Rb1 Ne4 21.Rb6 (21.Be4 Re4 22.Qa7 Re8-+) 21...Bd7 (21...Nd2 22.Qc3 Nf3 23.Kf2-+) 22.Rb7 (22.Be4 Re4 23.Qb2 g5 24.Rb8 Be8 25.fg5 Qg3 26.Kf1 Qh3 27.Ke1 Qg3 28.Ke2 Qg4 29.Kd3 hg5-+) 22...Nc5 (better 22...c5 23.Qa1 Nd2 24.Qd1-+) 23.Ra7 Nd3 24.cd3 (24.Qd3 c5 25.Qa6-+) 24...c5 25.Qc3 d4 26.Qc4 (26.Qc1 de3 27.de3 Qd3-+) 26...de3 27.de3 Re3 28.Ra8 Kg7 29.Qc3 Qd4 30.Qd4 cd4 31.Kf2 (31.Rd8 Be6 32.Rd4 Rh3-+) 31...Re7 (better 31...Rd3 32.Ra7 Bc6 33.Rc7-+) 32.Rd8 (32.Rb8 f5 33.g5 hg5 34.fg5 Bc6-+) 32...Be6 (32...Kf6 33.Kf1-+) 33.Kg3 (33.Rd4 f5 34.g5 hg5 35.fg5 Kf7-+) 33...f5 (better 33...Rd7 34.Rb8 f5-+) 34.Rd7?? (34.Rd4 Rc7 35.g5-+) 34...fg4 (better 34...Bd7 35.gf5 Re3 36.Kf2 Bf5-+) 35.Re7= Kf6 36.Re6 Ke6 37.hg4 Kf6 38.Kf3 g5 39.f5 h5 40.Kg3 (better 40.gh5 Kf5 41.Kg3=) 40...hg4?? (better 40...h4 41.Kg2 Ke7=) 41.Kg4+- Ke5 42.Kg5 1-0. Reppko (2080) - dtue (1935), Rated Bullet game, lichess.org, 2015. (=1.Nf3 Nf6 2.b4)

3.b5 a6 4.c4 ab5 5.cb5 d5 6.Bb2 Nbd7 7.e3 d4 (better 7...e6!?=+) 8.ed4+= cd4 9.Bd3 (9.Bc4!?=) 9...e5=+ 10.Bf5 (10.Qe2 Nd5 A) 11.Ne5? Nf4 12.Nf7 Ne2 (12...Kf7? 13.Bc4 Kg6 14.Qe4 Kh6 15.Qf4 Qg5 16.Qg5 Kg5 17.Bd4+–) 13.Nd8 Nf4–+; B) 11.g3–/+) 10...Bd6 11.0-0 0-0 12.Re1 Re8 13.Ng5? (13.d3!? Nc5 14.Bc8 Qc8 15.Na3–/+) 13...g6 (better 13...Nc5 14.Bc2 h6 15.Ne4 Nfe4 16.Be4–+) 14.Be4? (14.Bd3 h6 15.Ne4 Ne4 16.Be4 Nf6–+) 14...Nc5 (14...h6 15.Nf3 Ne4 16.Re4–+) 15.a4 (15.d3 h6 16.Nf3 Bd7–+) 15...Nfe4 (better 15...h6 16.Nf7 Kf7–+) 16.Ne4 Nd3 17.Ba3? (17.Rf1–+) 17...Ba3 (17...Ne1?! 18.Nd6 Re6 19.Nc8–+) 18.Na3 Ne1 19.Qe1 f5 20.Nc5 e4 (20...b6!? 21.Na6 Ba6 22.ba6 Ra6 23.Nb5–+) 21.Qc1 Qf6 (21...b6 22.Na6 Bb7 23.Qc4 Kh8 24.a5–+) 22.Qc4 Be6 23.Ne6 Qe6 24.Qd4 Rad8 (better 24...Rec8 25.h4 Qb3–+) 25.Qe3? (better 25.Qb2–+) 25...Rd3 26.Qf4 (26.Qe1 Rc8 27.Nb1 Qd6–+) 26...Red8 (26...Qc8 27.g4 fg4 28.Kg2–+) 27.f3 (27.Nc2–+) 27...Qb6 28.Kh1 Qf2 29.Qe5 (29.Nc4 Qd4 30.Rc1–+) 29...ef3 (29...Rd2 30.Qe6 Kg7 31.Rg1 Rd1 32.Qe7 Kh6 33.Qf8 Rf8 34.Rd1 ef3 35.gf3 Rd8 36.Ra1 Rd2 37.Nc4 Qh2) 30.gf3 (30.Qe6 Kg7 31.Qe5 Kf7 32.Qc7 Kg8 33.Qg3 Qd2 34.Rf1–+) 30...Qf3 31.Kg1 Rd2 (31...Qg4 32.Kh1 Rd2 33.Qe6 Kg7 34.Qe5 Kh6 35.Qe3 f4 36.Rg1 Qh4 37.Rg6 hg6 38.Qg3 fg3 39.h3 Qh3 40.Kg1 Qg2) 32.Qe6–+ Kg7 33.Qe7 Kh6 34.Qh4 Qh5 35.Qh5 Kh5 36.Nc4 Re2 (36...Rd1 37.Rd1 Rd1 38.Kf2–+) 37.a5 (37.Na5 Rdd2 38.Nb3 Rg2 (38...Rh2?! 39.Nd2 Rd2 40.a5=+) 39.Kh1 Rh2 40.Kg1 Rdg2 41.Kf1 Kg4–+) 37...Rd4 38.Rc1 (38.a6 ba6 39.ba6 Rg4 40.Kh1 Rh4–+) 38...Rg4 39.Kf1 Rh2 40.a6 (40.Rc3 Rgh4 41.Ne3 Rb2–+) 40...ba6 41.b6 (41.Rc3 ab5 42.Ne3–+) 41…Rh1 (41...Rh1 42.Ke2 Rc1–+) 0–1. yodamo – azazael, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 c5)

3.bc5 Qa5 4.Bb2 e6 5.e3 Na6 6.Ba6 ba6 7.0-0 Bc5 8.d4 (8.Bf6!? gf6 9.d4+/–) 8...Be7+= 9.c4 Rb8 10.Bc3 Qh5 11.Ne5 Qd1 12.Rd1 Ne4 13.Nd3 (13.Ba5 d6 14.Nc6 Rb2+=) 13...d6 (13...Rb1!? 14.Rdb1 Nc3+=) 14.f3+= Nc3 15.Nc3 Bd7 16.Rab1 0-0 17.Kf2 Rfc8 18.Rb3 Rb6 19.c5 Rb3 20.ab3 a5 21.Ne4 d5 22.Ne5 Bb5 23.Nc3 a6 24.Nb5 (24.Ke1 f6 25.Ng4 Bc6+/–) 24...ab5+= 25.Ra1 Bd8 26.e4 Kf8 27.Ke3 Ke8 28.Kd3 f6 29.Ng4 de4 30.fe4 Kd7 (30...e5 31.Ra2=) 31.Ne3+/– Rc6 32.Nc2 e5 (32...Rc8 33.b4 a4 34.g4+/–) 33.b4 Rc8 (better is 33...ed4!? 34.Nd4 ab4 35.Nc6 Kc6 36.Ra6 Kc5+/–) 34.ba5+– ed4 35.a6 (35.Kd4?! Be7+=) 35...Bc7 36.a7 Ra8 37.Nd4 Be5 (37...b4 38.Kc4+–) 38.c6 (38.Ra6 Bd4 39.Kd4 Kc7+–) 38...Kd6 39.Ra6 Bh2 40.g3! Ke7 (40...Bg3 41.Nf5 Theme: Double Attack) 41.Nb5 Bg3 42.Rb6 h5 (42...Rd8 43.Ke2 Ra8+–) 43.Rb7 (43.Rb7 Ke6 44.c7+–) 1–0. Kvarnstroem – Borgstroem, corr SSKK 1–02, 1986. (=1.Nf3 Nf6 2.b4 c5)

3.bc5 Qa5 4.Nc3 g6 (4...Nc6 5.e3 e5 6.Rb1=) 5.Bb2 (5.Rb1 Qc5 6.e3 Bg7+=) 5...Qc5 (5...Bg7 6.e3 0-0 7.d4+=) 6.e3 d5 (6...Bg7!? 7.Nb5 Qb6+/–) 7.Nb5 b6 (better is 7...Nbd7!? 8.Bd4 Qc6+–) 8.Bd4+– Qc6 9.c4! Na6?? (9...dc4 10.Ne5 Double attack (10.Ne5 Decoy)) 10.Ne5 Qb7 11.Qa4 Bd7 (11...Nd7 12.Nd7 Bd7 13.Bh8+–) 12.Qa6!! Qa6 13.Nc7 Kd8 14.Na6 Be6 (14...Rg8 15.cd5 Bg7 16.Bc4+–) 15.cd5 (15.c5 bc5 16.Nc5 Bg7+–) 15...Bd5 16.Bb5 h5 (16...Bg7 17.Nb4 Be6 18.Rc1+–) 17.Rc1 Rh7 (17...Bh6 18.Rc7 Bg5 19.0-0+–) 18.0-0 (better is 18.Rc7 h4 19.0-0+–) 18...Ne4 (18...Ng4+–) 19.Rc7 Nd6 20.Rd7 Kc8 21.Rc1 Bc4 (21...Nc4 22.Nc4 Bc6 23.Ne5 Bg7 24.Rc6) 22.Rc7 (22.Nc4 Ne4 23.Nb6) 22...Kd8 23.Nc6 Ke8 24.Bc4 (24.Bc4 Nc4 25.Rc4+–; 24.Ncb8 Kd8 25.R1c4 f6 26.Nc6 Ke8 27.Ne5 Kd8 28.Rd7 Ke8 29.Rd6) 1–0. Luna Hermoso,Angel (1975) – Marcos Herrero,Francisco (1945), Madrid ESP, 2013. (=1.Nf3 c5 2.b4 Nf6)

3.a3 b5 4.e4 Nb6 5.Bb5 Bb7 6.Nc3 e6 7.d4 c6 8.Bd3 g6 9.e5 d5 10.ed6 Bd6 11.Ne4 Bc7 12.Bg5 Qd5 13.Nf6 1–0. Rosner,Dirk – Butt,Christian, Tiger SC, 2001.

3.a3 Nf6 =.

3.Ba3 Nc6 4.e4 (4.b5!? Nb8 5.e4+=) 4...Ndb4= 5.c3 Na6 6.Qb3 e6 (6...d6 7.d4 Nab8 8.d5=) 7.Bb5 (7.Bf8 Rf8 8.Ba6 ba6=) 7...Ba3 (7...Nc5 8.Qc2=+) 8.Qa3 Qe7 9.Bc6 (9.d4 Nab8=) 9...Qa3 10.Bd7 Bd7 11.Na3 Nc5 12.e5 Nd3 13.Ke2 Nf4 14.Kf1 Bc6 15.Nc4? (better is 15.d4!?=+) 15...Bb5–+ 16.Rc1?? (better is 16.d3–+) 16...Bc4 17.d3 Bd3 18.Ke1 Ng2 19.Kd2 Be4 20.Rhg1 Bf3 21.Rb1 0-0-0 22.Kc1 Rd3 23.Kc2 Rhd8 0–1. bamacfie – dcooke, net–chess.com, 2002.

3.b5 Nb6 4.Bb2 d5 5.Bd4 Bg4 6.Nc3 Bf3 7.gf3 N6d7 (7...N8d7!?=) 8.Nd5+= e6 9.Ne3 (9.Nc3 c6+=) 9...Bc5 (better is 9...a6=) 10.Bg7 Rg8 11.Bc3 Be3 (11...Nb6 12.a4+/–) 12.de3+– c6 13.Qd3 cb5 14.Qh7 Rf8 15.h4 Nf6 16.Qd3 Qd3 17.cd3 Nc6 (17...Nh5+–) 18.Bf6 (18...Nb4 19.Rb1+–) 1–0. Marre – yakoom, zagraj.pl, 2003.

3.a4 Nd5? 4.ab5+– Nb4 5.Ba3 (5.e4 d5 6.c3 de4 7.cb4 ef3 8.Qf3 c6+=) 5...e5 6.Ne5 Qg5 7.d4 a5 (7...f6!? 8.Nf3 Qb5+–) 8.e4+– f6 9.Nf3 Qg4 (9...Qg6 10.Nfd2+–) 10.Nfd2 f5 (10...Qe6 11.c3 Bb7 12.Bc4+–) 11.Qg4 (11.c3 Qd1 12.Kd1 Bb7+–) 11...fg4 12.Kd1 d6 (12...Bb7+–) 13.Bb4 Bb7 (13...a4 14.Nc3+–) 14.Ra5 c5 (14...Be7 15.Ra8 Ba8 16.Be2+–) 15.Ra8 Ba8 16.dc5 (16.dc5 dc5 17.Bc3+–) 1–0. themonkey (1965) – NN, GameColony.com, 2002.

3.Bb2 Bb7 4.e3 (--> 1.b4 Nf6 2.Bb2 b5 3.e3 Bb7 4.Nf3).

3.Nc3 a5 4.Nb5 ab4 5.Bb2 d6 6.Bf6 gf6 7.e4 Rg8 8.Bc4? (better is 8.c3 c6 9.Nbd4=) 8...c6–+ 9.Nbd4 Rg2 10.Qe2 Qb6 11.Bb3 (11.c3 bc3 12.dc3 Ra3–/+) 11...Ra5 (11...e5 12.Nf5 Bf5 13.ef5 d5–+) 12.0-0-0? (better is 12.c3–/+) 12...e5–+ 13.Nf5 Bf5 14.ef5 Rf2 15.Bf7 (15.Qd3–+) 15...Kf7 16.Qc4 d5 17.Qb3 (17.Qh4 Ra2 18.Kb1–+) 17...Ra3 18.Qb2 (18.Ne5 fe5 19.Qb2 Bd6–+) 18...Raf3 19.c3 (19.h3 Rf5 20.Rde1 Bh6–+) 19...Rc3! 20.Kb1 (20.dc3 Bh6 Double attack (20...Rb2 Pinning; 20...Rb2 Deflection; 20...Qe3 Decoy)) 20...Ra3 21.Rdf1 Rg2 22.Rd1 b3 23.Qa3 Ba3 24.h4 (24.Rc1 ba2 25.Kc2 Qb2 26.Kd3 Qd2) 24...ba2 25.Ka2 (25.Kc2 Qb2 26.Kd3 Qb3) 25...Qb2 0–1. edog13 – marekt, ChessWorld.net, 2015.

3.e3 a6 4.a4 ba4 5.Ra4 Bb7 6.b5 (6.d4 e6+=) 6...ab5 7.Ra8 Ba8 8.Bb5 e6 9.0-0 Be7 10.d4 0-0 11.Re1 d5 (11...Ne4 12.c4=) 12.Ne5 (12.Ba3 Nbd7=) 12...c5 13.c3 (13.Ba3 Qc7=) 13...Qc7 14.Nd2 (14.Qa4 Bb7=) 14...Nc6=+ 15.Ndf3 (15.Bc6 Bc6 16.c4 cd4 17.ed4 dc4 18.Ndc4 Bd5=+) 15...Rc8 (15...Ne5 16.Ne5 Bd6 17.f4-/+) 16.Bd3 (16.Ba3 Ne4 17.Qa1 Ne5 18.Ne5 Bb7-/+) 16...Ne5 17.Ne5 cd4 (17...c4 18.Bc2=+) 18.cd4= Bb4 19.Bd2 Bd2 (19...Bd6 20.Qa1=) 20.Qd2+= ½-½. Caron_Britene,Christian - Fournier,Frederic, Train France, 2000.

3.e3 c6 4.a4 ba4 5.c3 d5 6.d4 Bf5 7.Nbd2 e6 8.Qa4 Be7 9.Ne5 Bd6 (better 9...Qc7!?=) 10.Nc6+– Nc6 11.Qc6 Kf8 12.Ba6 g6 (12...Rb8!?+–) 13.Bb7+– Rb8 14.Ra7 Kg7 15.0-0 (15.b5 Bd3+–) 15...Ng8 (better 15...Bd3!? 16.Re1 Ng8+–) 16.e4+– Ne7 17.Qa6 Bg4? (17...de4 18.Ne4 Be4 19.Be4 Rb6+–) 18.f3 Bh5 19.g4 Bg4 (19...Nc8 20.Ra8 (20.gh5?! Na7 21.e5 Be7+=) 20...Ra8 21.Ba8+–) 20.fg4 Nc8 (20...Bc7 21.ed5 Bb6 22.de6 fe6+–) 21.Rf7! Kf7 22.Bc8 Kf6 (22...Ke8 23.Be6 Be7+–) 23.Qf1 Kg5 24.Nf3 Kf6 (24...Kg4 25.Qh3! Kh3 26.Be6) 25.Bg5 (25.g5) 1–0. Panza (2470) – TEB1960 (1780), ChessWorld.net, 2007.

3.e4 Ne4 4.Bb5 Bb7 5.Bb2 a6 6.Ba4 (6.Be2 e6 7.a3 c5=) 6...e6=+ 7.Qe2 (7.0-0 Bb4 8.Nc3 Bc3 9.Bc3 0-0=+) 7...Bb4 8.Bg7? (better 8.0-0!?=+) 8...Rg8–+ 9.Be5? (9.Nc3 Nd2 10.Kd2 Rg7 11.a3 Bc3 12.Kc3 Rg2 13.Ne5–+) 9...Rg2 10.Nd4? (10.Rf1 Nc5 11.c3 Na4 12.cb4 d6–+) 10...Rf2 (better 10...c5 11.Nf3 Rf2 12.Qe3 Rf3 13.Qf3 Qh4 14.Kf1 Nd2 15.Nd2 Bf3 16.Nf3–+) 11.Qh5 Bd2?? (better 11...Nf6 12.Qh4 Bh1 13.Qf2 Ng4–+) 12.Kd1 (12.Nd2 Rg2 13.Ne6+–) 12...Qg5 (12...Qe7 13.Rg1 Bg5 14.h4–+) 13.Qg5 Bg5 14.Rg1 f6 (better 14...Kd8!? 15.h4 Bh4 16.Nb3–+) 15.Ne6 Ke7 (better 15...fe5 16.Ng5 Nc5–+) 16.Nc7? (16.Ng5 fe5 17.Ne4 Be4 18.Nd2–+) 16...Ra7 (16...fe5 17.Na8 Ba8 18.h3–+) 17.Bg3?? (better 17.Bd4 Nc3 18.Ke1 Re2 19.Kf1=) 17...Nc3 (better 17...Ng3 18.Rg3 Kd8–+) 18.Nc3+– Rd2 19.Ke1 Bg2 (19...Nc6 20.h4 Nd4+–) 20.N7d5! Bd5 (20...Rd5 21.Nd5 Double attack (21.Bb8 Discovered attack; 21.Rg2 Deflection); 20...Bd5 21.Bb8 Discovered attack) 21.Nd5 (better 21.Bb8 Rb7 22.Rg5 fg5 23.Kd2 Rb8 24.Nd5 Kd6 25.Nc3+–) 21...Rd5 22.Bb8 Rb7 23.Bg3 Rb4 24.Bb3 Re4 25.Kf1 Rf5 26.Kg2 Be3 (26...Bd2 27.Rad1 Bb4 28.h4+–) 27.Rgf1 (27.Rge1 Kd8+–) 27...Rg5 (27...Bf4 28.h4+–) 28.Rae1 (better 28.Kf3!? d5 29.Bd5 Rd4+–) 28...d5 29.Rf3 d4 (29...Bb6 30.Rd1 Bc7 31.Rd5 Bg3 32.Rg5 (worse 32.Rg3 Rd5 33.Bd5 Re2 34.Kh3 f5+–) 32...fg5 33.Rf7 (worse 33.Rg3 Kf6+–) 33...Kd6 34.hg3+–) 30.Ref1 Rg6 31.c3! Reg4 (31...dc3 32.Re1 Combination) 32.cd4 (32.Bc2!? Rg7+–) 32...Bd4 33.Re1 Be5 34.Kf2 (34.Bc2 Rg7+–) 34...R4g5 (34...h5 35.Kf1+–) 35.Be5 fe5 36.Rf7 Kd6 37.Rh7 Rg2 38.Kf3 R6g5 0–1. yodamo – pawnplay, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 b5)

3.g3 Bb7 4.Bg2 e5 5.Bb2 Bb4 6.Be5 0-0 7.a3 Be7 8.0-0 c5 9.c4 b4 (9...d6!? 10.Bf4 bc4+=) 10.Qc2 Nc6 11.Bf6? (better is 11.ab4 d6 12.Bb2 Nb4 13.Qf5=) 11...Bf6–+ 12.e4?? (12.d4!? Nd4 13.Nd4 Bg2 14.Kg2 Bd4 15.Ra2–/+) 12...Rb8 (better is 12...Ba1 13.Nc3 Bc3 14.dc3 ba3–+) 13.e5 (13.Ra2 Qb6 14.Qc1–+) 13...Ne5 14.Ne5 Bg2 (better is 14...Be5 15.Bb7 Rb7 16.Qe4–+) 15.Kg2 (15.Re1 d6 16.ab4–+) 15...Be5 16.Ra2 (16.d4 Bd4 17.Nd2 Ba1 18.Ra1–+) 16...a5 (better is 16...b3 17.Qd3 ba2–+) 17.d3?? (17.ab4 ab4 18.Ra7 Re8–+) 17...Bf6 (better is 17...b3–+) 18.Rd1?? (better is 18.ab4 ab4 19.Nd2–+) 18…Qc7 1–0. Joie,Sebastien – Fournier,Frederic, Match Active, 1999.

(--> 1.b4 b5 2.a4 ba4 3.Nf3 Nf6).

4.Bb2 (--> 1.b4 Nf6 2.Bb2 b5 3.a4 ba4 4.Nf3).

4.a3 a5= 5.ba5 Ra5 6.Bb2 Na6 7.Bc3 (better 7.Nc3=) 7...Ra4?? (better 7...b4 8.ab4 Ra1 9.Ba1 Nb4=) 8.Bb5+- Rg4 9.Bf1 (9.Ne5!? Rh4 10.g3+-) 9...Bd6 10.h3 Rg6 11.Nh4 (11.d4+=) 11...Nc5 (better 11...Rh6 12.Nf3 0-0=) 12.Ng6+/- hg6 (12...fg6 13.Be2+/-) 13.Bf6 Qf6 (13...gf6!? 14.Nc3 Bb7+-) 14.d4+- Ne4 15.Qf3 Qf5 (15...Bb7 16.Qf6 gf6 17.Nd2+-) 16.Qf5 gf5 17.Bd3 (17.Nd2 c5+-) 17...c5 (17...Bb7 18.a4 Bb4 19.Ke2+-) 18.Nd2 Bb7 (18...cd4 19.ed4 Bb7 20.Nc4+-) 19.Be4 fe4 20.Rb1 Bc6 21.dc5 Bc7 22.Nc4 (22.0-0 Ke7+-) 22...Ke7 (22...Rh5 23.Nd6 Ke7 24.Nb7+-) 23.0-0 (better 23.g4!?+-) 23...Rh5 24.Nd2 Rc5 25.c4 f5 26.Ra1 (26.Nb3 Rc4 27.Nd4 Bd5+-) 26...Ra5 (26...Be5 27.Ra2+/-) 27.Rfb1 (27.Nb3 Ra4+-) 27...g5 Black prepares the advance f4 (27...Be5!? 28.Ra2+-) 28.Nb3+- Ra4 29.Nd2 (29.Nd4 Bd6+-) 29...f4?? (29...Ra5 30.Rc1 Ba4+-) 30.Rb4+- Ra8 31.a4?? (better 31.Nb3+-) 31...Ba5= 32.Rb2 Bc3 33.Rba2 Ba1 34.Ra1 Ra5 35.Nb1 (35.g3 Kf6=) 35...Ra4=+ (35...Ba4? 36.Nc3+-) 36.Ra4 Ba4 37.Nc3 Bc6 (37...Bc2 38.g3=+) 38.ef4= gf4 39.h4 (39.Ne2 e5=) 39...Kf6=+ 40.g4 (40.g3 Ke5=+) 40...d5 (40...fg3 41.fg3 e3 42.Kf1=) 41.cd5 (41.g5 Kf5 42.Nb5 e5=) 41...ed5=+ 42.Ne2 Ke5 43.h5 Be8 44.Kf1? (44.f3!?=+) 44...d4-/+ Black intends e3 45.Ke1 f3 (better 45...e3!? 46.fe3 fe3-+) 46.Ng3= e3 47.g5 Kf4 48.g6 d3 49.fe3?? (better 49.Nf1 d2 50.Nd2 ed2 51.Kd2=) 49...Kg3-+ 50.g7 Bf7 51.h6 f2 52.Kf1 Kf3 53.h7 (53.g8Q Bg8 54.e4 d2 55.h7 d1Q) 53...d2 54.g8Q d1Q 0-1. Mr_strange (2090) - Lance5500 (2350), lichess.org, 2017. (=1.Nf3 Nf6 2.b4 b5)

4.c3 a5 5.Bb2=.

4.c3 a6 5.d4 (5.a4 ba4 6.d4 a5 7.Ra4 Nc6+=) 5...d6 (5...Bb7 6.Bd3=) 6.Nbd2 (6.Bd3 c5+=) 6...Be7 7.Bd3 Bd7 8.0-0 h6 (8...0-0 9.a4 ba4 10.e4+=) 9.e4 Bc6 (9...0-0 10.c4+=) 10.a3 (10.Qe2 0-0+/–) 10...Nbd7 (10...0-0 11.Qe2+=) 11.Qe2 Nb6 12.Nb3 (12.e5 de5 13.Ne5 Bd5+=) 12...Qd7 (12...Na4 13.Qc2+=) 13.Na5 0-0 (13...Ra7!?+=) 14.d5!+/– (14.Nc6?! Qc6 15.Bd2 Rfd8+=) 14...ed5 (14...Nfd5 15.Nc6) 15.Nd4 Bb7 (15...de4 16.Nac6 ed3 17.Qe7+/– (< 17.Ne7 Kh8 18.Qe3 d2=+)) 16.Nb7 c5 17.bc5 (17.e5 de5 18.Nc5 Bc5 19.bc5 ed4 20.cb6 dc3+/–) 17...dc5+/– 18.e5 cd4? (better is 18...Ne8 19.Nc5 Bc5+=) 19.ef6+– Bf6 20.Nc5 Qc8 21.Nb3 dc3 22.Qf3 Qe6 (22...c2 23.Ra2 Qc3 24.Nd2+/– (24.Bc2?! Qf3 25.gf3 Nc4=)) 23.Bf5 Qd6 24.Be3 (24.Rd1 c2 25.Bc2 Ba1 26.Na1 Rfd8=) 24...Rfd8 (24...Nc4 25.Bc5 Qe5 26.Rfe1+– (< 26.Bf8 Rf8 27.Rfe1 Qd6+–)) 25.Qg4 (25.Bc5 Qc7+=) 25...Be5= 26.f4 Bf6 27.Bc5 Qc6 28.Bf2 (28.Rac1 Nc4 29.Rfd1 Nd2 30.Rd2 cd2=+) 28...Nc4 29.Nd4 Qd7?? (29...Qc5 30.Ne6 Qd6 31.Nd8 Rd8+/–) 30.Bd7+– (30...h5 31.Qf5+–) 1–0. Gall,Zdenek – Fehr,Wolfgang, corr 3GMM–26, 1996.

4.c3 c6 5.a4 a5 6.ab5 ab4 7.bc6 Nc6 8.Ra8 Bb7 9.Rd8 Nd8 10.Nd4 Bf3 11.Qf3 bc3 12.Nc3 Nd5 13.Nd5 ed5 14.Qd5 1–0. theNewGuy98 (1745) – antokine, lichess.org, 2016.

3.Bb2 Bb7 4.e3 e6 5.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 b6 4.e3 Bb7 5.Nf3).

3.Bb2 Nd5 4.a3 Bb7 5.e4 Nf4 6.d3 e6 7.Qd2 Ng6 8.Be2 d6 9.0-0 e5 10.Nc3 c6 11.d4 Nf4 12.de5 de5 13.Qd8 Kd8 14.Ne5 (14.Rfd1 Kc7 15.Ne5 Ne2 16.Ne2 f6+–) 14...Ke7? (better is 14...Ne2 15.Ne2 Ke8+/–) 15.Bc4+– Ne6 16.Rad1 (16.f4!? a5 17.f5 ab4 18.fe6 bc3 19.Rf7 Ke8 20.Bc3 Bc5 21.Kh1 Bc8+–) 16...c5?? (16...f6 17.Nf3 Kf7+–) 17.Nd5 (17...Bd5 18.ed5 (18.Rd5?! cb4 19.ab4 h6+–; < 18.Bd5 Nc7 19.Ba8 Na8+–) 18...cb4 19.ab4+–) 1–0. Marre – arti555, zagraj.pl, 2003.

3.Bb2 d6 4.e3 e5 5.Bc4 h6 6.b5 Be7 7.Nc3 0-0 8.Nd5 (8.d4 d5 9.de5 dc4 10.ef6 Bf6=) 8...Bb7 9.Ne7 Qe7 10.Rg1 (better 10.0-0!?=) 10...Nbd7–/+ 11.g4 d5 12.Bb3 Ne4 (12...a6 13.ba6 Ra6 14.h4–/+) 13.g5 (13.d3 Nec5=+) 13...Ng5 (13...hg5 14.d3 Nec5 15.Ng5=+) 14.Ng5=+ hg5 15.Qh5 g6 (15...a6 16.ba6 Ra6 17.Rg5=) 16.Qg5 (16.Rg5 Kg7+=) 16...Qg5 17.Rg5 Rae8 (17...Kh7 18.Ke2= (18.Be5? f6–+)) 18.0-0-0 (18.d4 f6 19.Rg6 Kf7+–) 18...Kg7+= 19.f4 (19.d4 e4+=) 19...f6 20.Rg4 ef4 21.Rf4 (21.Rdg1 fe3 22.Rg6 Kf7 23.Rg7 Ke6+=) 21...Nc5 22.Rg1 Nb3 23.ab3 Re4 24.Re4 (24.Rf5 Rh4=) 24...de4= 25.h4 Rh8 26.Rf1 Rf8 27.c4 Rf7 28.b4 Bc8 29.Rf4 Bf5 30.Bd4 White plans c5 30...Kh6 31.c5 Bd7 32.Bf6 Kh5 33.Bg5 Rf4 34.ef4 Bb5 35.cb6 cb6 36.Kc2 a5 37.ba5 ba5 38.Kd1 a4 39.Kc2 Kg4 40.Kc3 Kf5 41.Kb4 ½–½. yodamo – Chairboy, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 b6 3.Bb2 d6)

3.d4 e6 4.g3 (4.a3 c5=) 4...Bb7 (4...Bb4 5.c3 Be7 6.Bg2–/+) 5.Bg2 (5.c3 a5 6.b5 c6=+) 5...Be7 (5...Bb4 6.c3 Be7 7.0-0–/+) 6.Nc3 (6.a3 0-0=) 6...Ne4 (6...Bb4 7.Bd2–/+) 7.Bb2 (7.Ne4 Be4 8.a3 0-0=) 7...Bf6 (better 7...Bb4!? 8.Qd3 d5–/+) 8.Rc1 Bd4 ½–½. Karpov,Anatoly – Dzindzichashvili,Roman, World Speed Championship round, 1988. (=1.Nf3 Nf6 2.b4 b6)

3.e3 e6 4.b5 Bb7 5.Bb2 c5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5).

4.Nc3 e6 5.d4 (better is 5.a3!?=) 5...Bb4–/+ 6.Bd2 Bc3 7.Bc3 Bf3 8.ef3 0-0 9.Bd3 c5 (9...d5 10.c5–/+) 10.0-0 (10.dc5 bc5 11.0-0 d5=+) 10...d5 (10...cd4 11.Bd4 Nc6 12.Bb2–/+) 11.dc5=+ bc5 12.f4 (12.Bf6!? Qf6 13.Qc2=+) 12...d4–/+ 13.Bd2 Nc6 14.Qf3 Qc7 15.g4 (15.Rab1 Rab8–/+) 15...a5 16.g5 Nd7 17.Qh3 Nb4?? (better is 17...f5–/+) 18.Qh7# 1–0. rogeliovargas (2105) – kpadfield (2150), net–chess.com, 2009.

4.e3 e6 5.a3= a5 6.b5 d5 7.d4 Bd6 8.Bb2 0-0 9.Nbd2 Qe7 10.Be2 Ne4 11.0-0 Nd7 12.Ne5 Nd2 13.Qd2 Be5 14.de5 dc4 15.Bc4 Rac8 16.Qe2 Nc5 17.Rfd1 h6 18.f3 Qh4 19.e4 Nd7?? (19...Rfd8 20.Bd4+=) 20.Rd2 (better is 20.Rd7 Rfd8 21.Rad1 Rd7 22.Rd7+–) 20...Nc5 21.Rad1 Na4 22.Rd7 Nb2 23.Qb2 Rfd8 0–1. Zhukov,Vladimir (1940) – Smolskiy,Mikhail (2025), Tula Efremenkov Memorial, 2008.

4.g3 e5+= 5.e3 (5.Ne5 Nc6 Double attack (5...Bb4 Discovered attack; 5...Bh1 Pinning; 5...Bh1 Deflection; 5...Nc6 Decoy)) 5...Bb4 6.Bg2 0-0 7.0-0 Re8 (7...e4 8.Nd4–+) 8.a3 Bf8 9.Nc3 d6 (9...e4 10.Ng5–/+) 10.Qc2 Nbd7 11.Rd1 Nc5 (11...c6 12.d4–/+) 12.d4 ed4 13.ed4 Ne6 14.d5 Nc5 15.Bg5 h6 16.Be3 Nce4 (16...Be7 17.Re1+=) 17.Bd4 Bc8 18.Nd2 Nd2 19.Qd2 Bf5 20.Qf4 Bg6 (20...g6 21.Re1+=) 21.Re1 (21.Bf6 Qf6 22.Qf6 gf6+=) 21...Nh7 (21...Be7 22.Ra2+=) 22.Bf1 (22.Re8 Qe8 23.Qg4 Bd3=) 22...Qg5 (22...Qd7 23.Bg2+=) 23.Qc1 (23.Qg5 Ng5 24.Bg2 Bh5=) 23...Qc1 24.Rac1 a6 25.Bh3 Ng5 26.Bg2 Bd3 27.h4 Nh7 28.Bf1 Bf1 29.Kf1 g6 30.a4 Bg7 31.Ne2? (31.Bg7 Kg7 32.f3 Nf6–/+) 31...Re4 32.f3? Re7 33.Bg7+= Kg7 34.Nd4 Rae8 35.Re7 Re7 36.Nc6 Re3–/+ 37.Kf2 Ra3 38.a5 ba5 39.Rb1 a4 40.Rb7 Rb3 41.Rc7–/+ a3 42.Ra7 Rb6 43.Nd4 a2 44.Nb3 Rb3 45.Ra6 Rb2 46.Ke3 Nf6 47.Kd3 Nd7 48.Kc3 Rf2 49.Kb4 Nc5 50.Ra7 Rb2 51.Kc3 Rb3 52.Kc2 Rf3 53.Ra8 Rg3 0–1. Gonzalez Lopez,Vidal – Ramon Sanchez Campins,Pedro (1910), Mallorca–ch D2, 2000. (=1.Nf3 Nf6 2.b4 b6)

4.Bg2 d6 5.0-0 (5.d4 e6=) 5...e5 6.b5 (6.d3 Be7=) 6...Be7 7.d3 (7.Nc3 a6=+) 7...0-0 (7...a6 8.c4=) 8.e4 (8.Nc3 a6=+) 8...Qd7 (8...a6 9.c4=+) 9.c4 c6 (9...a6 10.Qb3=) 10.a4 a6 11.Bb2 (better 11.bc6!? Qc6 12.Nh4=) 11...ab5–/+ 12.ab5 Ra1 13.Ba1 cb5 14.cb5 (14.Nfd2 bc4 15.dc4 Na6–/+) 14...Qb5 15.Nc3 Qa5 16.Qb3 (16.Nd2 Nbd7–/+) 16...Ba6 (16...Nbd7 17.Rb1–/+) 17.Rd1 (17.Bb2 Bd3 18.Ra1 Qc5–/+) 17...Bd3 18.Nd5 (18.Rd3 Qa1 19.Rd1 Qa5–/+) 18...Nd5 19.Qd3 Nf6 (19...Nb4 20.Qb3 N8c6 21.Bc3=+) 20.Bc3 (20.Nh4 g6–/+) 20...Qa4 (better 20...Qa6 21.Qe3 Qa4–/+) 21.Nd2?? (better 21.Nh4–/+) 21...Qd1–+ 22.Bf1 Nbd7 23.Kg2 (23.f3 Rc8–+) 23...Nc5 24.Qc4 Qa4 0–1. mic – greyhawk, net–chess.com, 2017.

4.Bg2 e5 5.a3 a5 6.ba5 Ra5 7.c4 (7.0-0 Nc6 8.d3 d5+=) 7...Nc6 8.Bb2 Qa8 (8...e4 9.Nd4–/+) 9.0-0+= Bd6 (9...Nd4 10.d3+=) 10.d3 Nd4 11.e4 Nf3 12.Bf3 0-0 13.Qb3 Bc6 14.Bc3 (14.Nc3 Re8=) 14...Ra4 (14...Ra6 15.Bd2+=) 15.Qb2 (15.Bb2 Ra5=) 15...Re8 16.h3? (16.Bd1!? Ra6 17.a4+=) 16...b5–/+ 17.Bd1 (17.Nd2 Ba3 (17...Ra3? 18.cb5 Bb7 19.Nc4 Ra1 20.Ra1+–) 18.Qb3 b4–/+) 17...bc4–+ 18.Ba4 Qa4 19.f3 (19.dc4 Qc4 20.Nd2 Qe6–/+) 19...cd3 (19...Bc5 20.Kh2 cd3 21.Nd2–+) 20.Nd2 (20.Bb4 Qb5 21.Nc3 Qb6 22.Qf2+=) 20...Bc5 21.Kh2 d6 22.Qb3 Qa8 (22...Qa6 23.Rfc1–+) 23.Qc4 (23.Bb4!? Bd4 24.Rac1–/+) 23...Bb7–+ 24.a4 (24.Qd3 Ba6 25.Qb1 Qa7–+) 24...Ba6 25.Qa2 Nh5 (25...Qc6 26.Rab1–+) 26.f4 ef4 27.g4 Nf6 28.Rf4 (28.Bf6 gf6 29.Rf4 Bd4–+) 28...Be3 29.Rf5 Bd2 30.Bd2 Re4 31.Raf1 (31.Re1 Re2 32.Re2 de2–+) 31...Bc4 (31...Re2 32.R1f2–+) 32.Qb2 Nd7 33.a5 Ne5 (better is 33...Re2 34.R1f2–+) 34.a6? (34.Kg3 Re2 35.R5f2–+) 34...Re2 35.R1f2 Ba6 36.Qa2 Rf2 37.Rf2 Qc6 38.Bf4 (38.Kg3 h6–+) 38...Bc4 (better is 38...Nf3!? 39.Kg3 Bb7 40.Qa5–+) 39.Qb2 Qb6 (39...Nd7 40.Qd4–+) 40.Qd2? (40.Qb6 cb6 41.Kg3 Kf8–+) 40...Qd4 (40...h6 41.Qe3 Qb5 42.Kg3–+) 41.Kg3 (41.Qe3 Qd5–+) 41...h5! 42.gh5 Be6 43.h6 gh6 (43...Nc4 44.Qd1–+) 44.Bh6 Ng6 (better is 44...Nc4 45.Qf4 Qe5–+) 45.Bg5? (better is 45.Qg5–/+) 45...Qe5–+ 46.Bf4 Qf5 (better is 46...Qh5 47.Rf3 Qh3 48.Kf2 Qh4 49.Rg3 f6–+) 47.Kg2?? (47.Rf3 Qh3 48.Kf2 Qh4 49.Bg3 Qd4 50.Qe3 Qb2 51.Ke1–+) 47...Qh3 48.Kg1 Bd5 49.Bh2 (49.Rf1 Nf4 50.Rf4 Qg3 51.Kf1 Bf3 52.Qd3 Qf4–+) 49...Qg4 (better is 49...Ne5 50.Qg5 Kh7 51.Qg3 Qg3 52.Bg3–+) 50.Kf1 Nh4 51.Rf4 (51.Qe3 Kf8–+) 51...Qh3 52.Kg1 Nf3 53.Rf3 Qf3 (53...Qf3 54.Qg5 Kf8 55.Qd8 Kg7 56.Qg5 Kh7–+; worse is 53...Bf3 54.Bf4 Qh4 55.Kf1–+) 0–1. Fernandez Lledo,J (2255) – Martinez Martin,D (2405), TCh–Madrid, 2014. (=1.Nf3 Nf6 2.b4 b6)

4.Bg2 e5 5.c3 =+.

4.Bg2 g6 5.Bb2 Bg7 6.c4 0-0 7.0-0 d6 8.d4 Nbd7 9.Nbd2 c5 10.bc5 bc5 11.d5 Rb8 12.Qc2 Bc8 13.Bc3 Nb6 14.a4 Ne8 (14...Bf5!? 15.Qd1 Qd7=) 15.a5 Nd7 16.Rab1 Bc3 17.Qc3 Nc7 18.e4 Na6 19.Rb8 Ndb8 20.e5 Nb4 21.ed6 ed6 22.Ne4 f5 23.Neg5 h6 24.Ne6 Be6 25.de6 Qe7 26.Qe3 Kh7 27.Nd2 Nc2 28.Qd3 Nd4 29.Bd5 Nbc6 30.Re1 Ne5 31.Qc3 f4 32.Re4 f3 33.Rd4= cd4 34.Qd4 Qc7 35.a6 Qc5 36.Qc5+/– dc5 37.Ne4 Rb8 38.h3 Nd3?? 39.e7+– Kg7 40.Nd6 Rb1 41.Kh2 Rb2 42.Bf3 (42.Bf3 Rb8 43.e8Q Re8 44.Ne8 Kf8 45.Nc7+–) 1–0. Santasiere,Anthony Edward – Agree,Arnold, Marshall CC–ch fin, 1958.

3.a3 d5 4.d4 h6 5.e3 Bf5 6.Bd3 Ne4 7.0-0 Nd7 8.c4 dc4 9.Bc4 e6 10.Bd3 Bd6 11.Qc2 Ndf6 12.Nbd2 Nd2 13.Bd2 Bd3 14.Qd3 0-0 15.e4 Bc7 16.Qc2 Bb6 17.e5 (17.Rfd1 A) worse is 17...Bd4 18.Bc3 (worse is 18.Nd4 Qd4 19.Re1 Ne4+=) 18...e5 19.Ne5 (19.Bd4?! ed4 20.Nd4 Qe7+=) 19...Bc3 A1) 20.Qc3?! Qc7= (20...Ne4? 21.Qe3 Qh4 22.g3 Ng3 23.fg3+–); A2) 20.Rd8 Ba1 21.Ra8 Ra8 22.Nf7 Kf7 23.Qa2 Kf8 24.Qa1+–; B) 17...Re8+=) 17...Nd5= 18.Qc1 Qe7 19.Bh6 (better is 19.a4!?=) 19...gh6–/+ 20.Qh6 f6 21.ef6 (21.Qh3 Rf7–/+) 21...Qf6 22.Qf6 Rf6 23.Rad1 Bc7 24.Ne5 Be5 25.de5 Rf4 26.Rfe1 Raf8 (26...a5 27.ba5 Ra5 28.Rd3–+) 27.f3–/+ Rc4 28.Rd3 Rc3 (28...Rc2 29.g3–/+) 29.Rc3 Nc3 30.Re3 Nd5 31.Re4 Rf4 32.Re1 (32.Rf4 Nf4 33.g3 Ne2 34.Kf2 Nd4–/+) 32...Rd4–+ 33.g3? (better is 33.Kf2–+) 33...Rd3 34.f4 Ra3 35.Rb1 Ra2 36.Rf1 (36.Rb3 b5–+) 36...Rb2 (36...Nb4 37.Rf2–+) 37.f5 (37.Rf2 Rb1 38.Kg2 a6–+) 37...Ne3 38.Rf2 Rb1 (38...Rb1 39.Rf1 Rf1) 0–1. Sapareva,Magdalena (1650) – Draganova,Petranka (1995), 13th European Senior Championship, 2013. (=1.Nf3 Nf6 2.b4 c6)

3.a4 b5 4.ab5 cb5 5.e3 Qb6 6.Nc3 Bb7 7.Bb2 (better 7.Bb5!? e6 8.Ba3+–) 7...a6= 8.Bd3 Nc6 9.Na2 e6 10.Bf6 (10.Rb1!?=+) 10...gf6–/+ 11.c3 Bd6 12.Nc1 0-0-0 (12...Rg8 13.Rg1=+) 13.Nb3 Ne5 (13...Rdg8 14.g3=) 14.Be2 Bf3 (14...Rdg8 15.g3+=) 15.Bf3 (15.gf3 Rhg8+=) 15...Nd3 (15...Rdg8 16.Nd4+=) 16.Ke2+– Ne5 17.d4 Nf3 18.gf3 Kb7 (18...Qc6 19.Qd3+–) 19.Nc5 (19.Qd3!?+–) 19...Bc5 20.dc5 Qc6 21.Rg1 (21.Qd4 e5 22.Qh4 Qe6+–) 21...Rhg8 (21...d6!? 22.Rg7 Rd7=) 22.Qd4 e5 23.Qh4 (better 23.Qd3 Rg1 24.Rg1+=) 23...d5? (better 23...Qe6!?+=) 24.Qh7 (better 24.Rg8!? Rg8 25.Qh7 Qe8+–) 24...Rgf8 25.Rg7 Rd7 (25...Qe6 26.h4+–) 26.Qf5 d4 (26...Re8 27.Kf1+–) 27.Rd1 Rfd8 28.cd4 ed4? (28...a5 29.ba5 Ka6 30.Rg4+–) 29.ed4 (29.Rd4 Rd4 30.ed4 Kb8+–) 29...Re7? (better 29...a5 30.d5 Rd5 31.Rf7 Kb8 32.Qf4 Ka8+–) 30.Kf1 Rd5 31.Qf4 Qe6 32.Kg2 Rf5 (32...Rc7 33.Rd3+–) 33.Qg4 Qd5 (33...Qd7 34.h4+–) 34.Rg8 (better 34.h4 Rc7 35.Rg8+–) 34...Re2?? (34...Rg5 35.Rg5 fg5 36.Rc1+–) 35.Qg3 (better 35.c6 Kc6 36.Rc1 Kb6 37.Rc5 Qf3 38.Qf3 Rf3 39.Kf3+–) 35...Rg5 36.Rg5 fg5 37.Kf1 (37.Rd3!? Re7+–) 37...Qc4 38.Kg2 (38.Qg5 Re5 39.Kg2 Rg5 40.Kh1 Qe2 41.c6 Kc7 42.h4 Qf3 43.Kh2 Qg2) 38...Qc2?? (38...Qd5 39.Rd3 Re6 40.Re3+–) 39.Qd6 (39.Ra1 g4 40.Qd6 Rf2 41.Kh1 Rh2 42.Qh2+–) 39...Rf2= (39...Qd1?? 40.c6 Kb6 41.d5 Qd5 42.Qd5+–) 40.Kg3 Rg2 41.Kh3 g4?? (better 41...Rh2 42.Qh2 Qd1=) 42.Kh4?? (better 42.fg4 Re2 43.Qd7 Kb8 44.Qd8 Kb7 45.Qb6 Kc8 46.Qa6 Kd8 47.Qd6 Ke8 48.Qc6 Ke7 49.Qd6 Ke8 50.Qb8 Ke7 51.Qd6 Ke8=) 42...Qh7–+ (42...Qd1?! 43.Qd7 Kb8 44.Qd8 Kb7 45.Qd7 Kb8 46.Qd8 Kb7 47.Qd7=) 43.Kg5 gf3 44.Kf4 Qh2 (44...Qh4 45.Ke5 Qg5 46.Ke4 Re2 47.Kf3 Qg2 48.Kf4 Re4 49.Kf5 Qg4 50.Kf6 Qg6) 45.Kf5–+ Qh5 (45...Qh7 46.Kf6 Qg7 47.Ke7 Re2 48.Qe5 f6 49.Kd8 fe5 50.Rg1 Qf6 51.Kd7 ed4 52.Rg7 Qg7 53.Kd6 Qc7 54.Kd5 Qe5) 46.Kf4 Qg4 47.Ke3 Re2 48.Kd3 Qe4 (48...Qe4 49.Kc3 Qc2; 48...Qf5 49.Kc3 Qc2) 0–1. yodamo – Chairboy, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 c6)

3.a4 Qb6 4.e3 (4.Ba3!?=) 4...Qb4–/+ 5.c4 e6 6.Ba3 Qb6 (6...Qa5 7.Bb2–/+) 7.Bf8 Kf8 8.Nc3 d5 9.Rb1 (9.a5 Qd8=) 9...Qc7 10.cd5 cd5 (10...ed5 11.Be2=+) 11.Nb5 (11.Rc1 Nc6=) 11...Qd8=+ 12.Qc2 Na6 (12...Nc6 13.Be2=+) 13.Ne5 Nd7 14.Nd6?? (better 14.Nd7 Bd7 15.Nc3=) 14...Ndc5 (better 14...Ne5 15.Nb7 Bb7–+) 15.Ndf7+– (worse 15.Nef7 Qc7 16.Ba6 ba6+–) 15...Rg8 (15...Qf6 16.d4 Kg8 17.dc5+–) 16.Qh7 (better 16.Nd8 Ke7 17.Qh7 Rd8 18.Qh4 Ke8 19.Bb5 Rd7 20.Qh8 Ke7 21.Qg7 Kd6 22.Qf8 Kc7 23.Nd7 Bd7 24.Qa8+–) 16...Qf6 17.f4 (17.Nh8 Rh8 18.Qh8 Ke7+–) 17...Nd7? (17...Qf5 18.Qf5 ef5 19.Ba6 ba6+–) 18.Bb5 Ne5 19.Ne5 Nc7 20.Ng6 Kf7 21.Ne5 (21.Rc1!? Nb5 22.Ne5 Kf8 23.Rc8 Rc8 24.Nd7 Kf7 25.Nf6 Kf6 26.ab5 a6+–) 21...Kf8 22.0-0 (22.Rc1 Nb5 23.Rc8 Rc8 24.Nd7 Kf7 25.Nf6 Rh8+–) 22...a6 (22...Nb5 23.Rb5 Qh6+–) 23.Bd7 Qe7 (23...Qh6 24.Qh6 gh6+–) 24.Ng6 (24.Ng6 Kf7 25.f5+–; 24.f5 Qf6 25.Ng6 Qg6 26.fg6 Ke7 27.Qh4 Kd6 28.Qb4 Kd7 29.Rf7 Kd8 30.Qe7) 1–0. yodamo – fast phill, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 c6)

3.Bb2 e6 4.c3 Be7 5.e4 (5.e3 d5=) 5...0-0 (5...Ne4!? 6.Be2 a5-/+) 6.d3 d5 7.Be2 (7.e5!? Nfd7 8.d4=) 7...de4-/+ 8.de4 Qd1 9.Bd1 Ne4 10.0-0 Nf6 11.Re1 b6 12.c4 (better 12.a3!?-/+) 12...Bb4-+ 13.Re2 Be7 14.Bc2 Ba6 15.Bb3 (15.Nbd2 Nbd7-+) 15...Nbd7 16.Nc3 Nc5 17.Ne4?? (better 17.Ne5 Bb7 18.Rd1-+) 17…Nce4 (17...Nb3?! 18.Nf6 Bf6 19.ab3 Bb2 20.Rb2-+) 0-1. manneredmonkey (1920) - ValKillme (2050), Rated Bullet game, lichess.org, 2015. (=1.Nf3 (A00: Irregular Openings) 1...c6 2.b4 Nf6)

3.c4 Qb6 4.a3 a5 5.c5 Qd8 6.Bb2 b6 7.Nc3 e6 (7...ab4 8.ab4 Ra1 9.Qa1=) 8.d4 Ba6 9.Na4 bc5 10.dc5 Be7 11.g3 0-0 12.Be5 Nd5 13.Bg2 (13.e4 Bf1 14.Kf1 Nc7+=) 13...f6 14.Bc3 (14.Bb8 Rb8 15.e4 Nc7+=) 14...Bb5 (14...ab4 15.Bb4 Bb5–/+ (15...Nb4?! 16.ab4 f5 17.Nb6=)) 15.Bd2+= ab4 16.ab4 Na6 17.0-0 f5 18.Nc3 Bf6 (worse is 18...Nab4 19.Ra8 Qa8 20.Nb5 cb5 21.Bb4 Nb4 22.Qd7 Bc5 23.Qe6 Kh8 24.Rc1+=) 19.Nd5 ed5 20.Rb1 Nc7 21.Bf4 Ne6 (21...Ra2 22.Bc7 Qc7 23.Nd4 Bd4 24.Qd4 Re2 25.Rfe1–/+) 22.Be5 Ra4 23.Bf6 Qf6 24.Qd2 Rfa8 25.Rfc1 g5 26.e3 Ra2 27.Qc3 Qc3 28.Rc3 R8a4 29.Nd4 (29.h4!? g4 30.Ne5+=) 29...Nd4–/+ 30.ed4 Rd2 31.Re3 Raa2 32.Rf3 Bd3 (32...Rd4?! 33.Rf5 h6 34.Rf6+=) 33.Re1 (better is 33.Rd3!? Rd3 34.b5–+) 33...Be4 34.Rfe3 Rf2 35.Be4 fe4 36.h4 g4 37.Rc3 (37.Ra3 Rad2–+) 37...Rf3 38.Rf3 gf3 (38...ef3?! 39.Re8 Kf7 40.Rd8–+) 39.Rf1 (39.Re3 Rd2 40.Rb3 Rd4–+) 39...Rg2 40.Kh1 Rg3 41.Kh2 Rg2 42.Kh3 Rg7 43.Rf2 Kf7 0–1. Scheunemann,Tim – Frank,Wolfgang (2185), Bad Zwesten op 9th, 2005. (=1.Nf3 Nf6 2.b4 c6)

3.c4 h6 4.d4 e6 5.a3 a6 6.Bf4 d6 7.Nc3 Nbd7 8.e4 Nh5 9.Be3 Be7 10.Bd3 Nhf6 11.0-0 Ng4 12.Bd2 e5 13.a4 ed4 14.Nd4 Nge5 15.Be2 c5 16.Nf5 Nf6 17.f4 Bf5 18.fe5 de5 19.Rf5 Qd6 20.Nd5 Nd5 21.cd5 0-0-0 22.Rc1 Kb8 23.bc5 Qg6 24.Qb3 Rd7 25.c6 Rc7 26.Ba5 Bc5 27.Rc5 Rhc8 28.Ba6 Qg4 29.cb7 Qd1 30.Qd1 Rb7 31.Rc8 Kc8 32.Qb3 Kb8 33.Qb7 1–0. pierred – burkebomber1, Yahoo, 2005.

3.e3 a5 4.b5 d5 5.h3 e6 6.c4 Be7 7.Nc3 0-0 8.Be2 Ne4 9.Bb2 Nc3 10.Bc3 cb5 11.cb5 Nd7 12.0-0 Bd6 13.d4 Nf6 14.Bd3 Ne4 15.Be4 de4 16.Nd2 f5 17.a4 b6 18.Nc4 Bc7 19.Ne5 Bb7 20.Bb2 Rc8 21.Ba3 Re8 22.Nc6 Bc6 23.bc6 Qd5 24.Qc2 e5 25.Rfd1 ed4 26.Rd4 (worse is 26.ed4 Bf4–/+) 26...Qe5 27.Qc4 Kh8 28.g3 Qf6 29.Rc1 h5 30.Rd7 h4 31.gh4 f4 (31...Qh4 32.Qf7 Qg5 33.Kh1 Be5+–) 32.Qf7+/– Qf7 33.Rf7 f3 34.Bb2 Be5 35.Be5 (better is 35.Bd4!?+–) 35...Re5+/– 36.Rd7 Kh7 37.c7 Rc5 38.Rc5 bc5 39.Kf1 Kg6 40.Ke1 Kf6 41.Kd2 1–0. Martinson,Rick (2085) – Kries,Yvon (2055), WS/H/205 ICCF, 2009.

3.e3 d5 4.c4 Bg4 5.d4 dc4 6.Bc4 e5 (6...e6!? 7.a3 Bd6=) 7.Qb3 Bf3 8.Bf7 Kd7 9.gf3 ed4 10.0-0 Bd6 11.e4 (better is 11.Rd1+=) 11...Qe7+= 12.Rd1 Rf8 13.Bc4 Qe5 (worse is 13...Bb4 14.a3 (worse is 14.Rd4 Ke8+=) 14...b5 15.Qb4 Qb4 16.ab4 bc4 17.Rd4 Ke8 18.f4+/–) 14.Kf1 Ne4 (14...Qh2 15.Bb2 Ne4 16.Bd4–+) 15.fe4 Qh2 16.Bf7? (16.Rd2 Qh1 17.Ke2 Qc1 18.Rd4–+) 16...Qh1–+ 17.Ke2 Qe4 18.Kf1 Qf5 19.Rd4 Rf7 20.Bf4?? (20.Be3 Kc7 21.Nc3 Na6–+) 20...Kc8 (better is 20...Qb5 21.Rd3 Rf4–+) 21.Rd6 Qf4 22.Rd2 Nd7 23.Qd3 Qf5 (23...Qh4!? 24.Kg2–+) 24.Nc3 Qd3 25.Rd3 Kc7 26.Rc1 Raf8 27.Rc2 Ne5 28.Rg3 Kb8 29.b5 g6 30.bc6 Nc6 31.Kg2 Nd4 32.Rd2 Nf5 33.Rgd3 h5 34.Nb5 b6 35.Nd4 Nd4 36.Rd4 Rf4 37.Rd7 R8f7 38.R7d6 g5 39.Rh6 h4 40.Rh5 R4f5 41.Rc2 Kb7 42.Rh6 Ka6 43.Re2 Ka5 44.f3 Rf3 45.Re5 Ka6 46.Rg5 Rf2 47.Kh3 Ra2 (47...Ra2 48.Rh4 Kb7–+) 0–1. Struck,Bernd Dieter (1975) – Scherer,Klaus (2020), Bad Wildungen Seniors op 3rd, 2006. (=1.Nf3 Nf6 2.b4 c6)

3.e3 g6 4.c4 Bg7 5.d4 0-0 6.Bd3 d5 7.Nbd2 a5 8.b5 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.a4 Bb5 12.ab5 Nbd7 13.0-0 Nd5 14.Ba3 Rc8 15.Qb3 N7b6 16.Rac1 (16.Bc5 a4 17.Qa3 Nd7+=) 16...f5 (16...a4!? 17.Qd3 Qd7=) 17.Rc8 Nc8 18.Nc4 Kh8 19.Nce5 Bf6 20.h4 (20.Rc1 Ncb6+/–) 20...Ncb6 21.Rc1 Qe8 22.g3 (22.Qd3+=) 22...h6 (22...a4 23.Qd3+=) 23.Qc2 (23.Rc5 a4 24.Qa2 Be5 25.Ne5 Nf6+–) 23...Rg8 (better is 23...Be5!? 24.Ne5 Kg7+=) 24.h5+/– gh5 25.Qf5 e6 (25...h4 26.Qe6 hg3 27.fg3 Rg3 28.Kf2=) 26.Qh3 (26.Qd3 Nd7+/–) 26...Bg5 (26...Na4 27.Nc4 h4 28.Nh4+/– (worse is 28.Na5 Nac3+=)) 27.Kg2 Ne3? (27...Bf6!?+/–) 28.fe3+– Be3 29.Rc7 Nd5?? (29...Rg7 30.Rg7 Kg7+–) 30.Nf7 Kg7 31.Nd6 (worse is 31.Rb7 Qa8 32.Nd6 Kh8+–) 31...Kh8 (31...Nc7 32.Ne8 Ne8 33.Qe6 Bg5+–) 32.Ne8 Nf4 (32...b6 33.Bd6 Nc7 34.Be5 Kh7 35.Nc7+–) 33.Kh2 (better is 33.Kf1 Re8 34.gf4 Bf4 35.Qh5 Ra8 36.Be7 Bg5 37.Bf6 Bf6 38.Qh6 Kg8 39.Qg6 Kf8 40.Qf7) 33...Nh3 34.Nf6 (34.Nf6 Bg1 35.Kh1 Nf2 36.Kg2 Rg3 37.Kf1 Rg7 38.Rc8 Rg8 39.Rg8) 1–0. Santasiere,Anthony – Celerio,Ed, Ft Lauderdale Flor, 1968. (=1.Nf3 Nf6 2.b4 c6)

4.a3 Qb6 5.Bd4 Qc7 6.c4 d6 7.e3 e5 8.Bb2 Bf5 9.d4 Nbd7 10.Nc3 Be7 11.Be2 h6 12.b5 0-0 13.0-0 Rfd8 14.Nd2 c5 (14...ed4 15.ed4 d5 16.c5=) 15.e4 (15.d5 Re8+=) 15...Bh7 (better 15...cd4!? 16.Nd5 Nd5 17.cd5 Bg6=+) 16.d5+= Nf8 17.f4 ef4 18.Rf4 Ng6 19.Rf2 Ne5 20.Qf1 Rf8 21.Re1 Nfg4 22.Bg4 Ng4 23.Rfe2 Ne5 24.Rf2 Bh4 25.g3 Bg5 26.Nf3 Bf6 27.h3 (27.Nd1 Rae8=) 27...Nf3=+ 28.Rf3 Bd4 29.Kh1 Rae8 30.Rf4 Be5 31.Rh4?? (better 31.Rf3-/+) 31...Bg3-+ 32.Rg4 Be1 33.Ne2 (33.Qe1 f5 34.Rg3-+) 33...Be4 (33...Re4?? 34.Rg7 Kh8 35.Rg6 f6 36.Bf6 Rf6 37.Qf6 Qg7 38.Qg7) 34.Kh2 (34.Re4 Re4 35.Qe1 Qe7-+) 34...Bg6 (better 34...f6 35.Nf4 Bd2-+) 35.Qe1 Qe7 36.Rg2 Qe4 37.Qc3 Qe5 38.Qe5 de5 (38...Re5?! 39.Be5 de5 40.Nc1-+) 39.Rg3 Kh7 40.b6 (40.Re3 f6-+) 40...f5 41.Nc3 (41.Re3 f4 42.Re5 Re5 43.Be5 Re8 44.Nf4 Re5-+) 41...f4 42.Rg1 f3 43.Na4 (43.Kg3 e4 44.Rf1 Bh5-+) 43…f2 0-1. Fuchs,Jochen (1740) - Borrmann,Laurenz (1620), Xtracon Chess Open, 2019. (=1.Nf3 Nf6 2.b4 c6)

4.a3 d5 5.e3 Bg4 6.h3 Bh5 7.c4 e6 8.Qb3 ab4 9.ab4 Ra1 10.Ba1 Na6 11.c5 Bf3 12.gf3 Be7 13.Be5 0-0 14.Nc3 Nb8 15.d4 Nbd7 16.Bh2 Qa8 17.Bg2 Ne8 18.0-0 Bh4 19.Rb1 b5 20.Qd1 Be7 21.Ra1 Qb7 22.Ra2 Nc7 23.e4 Na6 24.Rb2 Ra8 25.f4 Bd8 (25...de4 26.Ne4 Nc7 27.f5 ef5 28.Nc3=) 26.Qg4 (better is 26.f5!?+=) 26...Nf6 27.Qe2 Bc7 28.e5 Nd7 29.Bf1 Re8 (29...Nab8 30.Qg4=) 30.Bg3 f5 (30...Qc8 31.Qg4=) 31.Qh5 (31.Nb5 cb5 32.Qb5 Qb5 33.Bb5 Nab8+=) 31...Rf8 32.h4 Bd8 33.Rb1 Ndb8 34.Kh1 Qf7 35.Qf3 Qg6 36.Be2 Qe8 37.Kg2 Be7 38.Na2 Nc7 39.Rh1 g6 (39...Nd7 40.Ra1=) 40.Qe3 h5 41.Rg1 Kh8 42.Nc1 Nba6 43.Nd3 Rg8 44.Kh3 Rg7 45.Bh2 Qf7 46.Qd2 Bd8 47.Ne1 Qe7 48.Nf3 Ne8 49.Ng5 Nec7 ½–½. Lindenbaum,M – Pueschel,Gisela, Berlin Lichtenberger op, 2007. (=1.Nf3 Nf6 2.b4 c6)

4.a3 a5 5.c3 g6 6.d4 Bg7 7.Nbd2 d5 8.e3 Bg4 9.Bd3 Nbd7 10.h3 Bf3 11.Nf3 Qc7 12.0-0 0-0 13.c4 ab4 14.ab4 Ra1 15.Qa1 dc4 16.Bc4 Nb6 17.Bb3 Ra8 18.Qc1 Nbd5 19.Bc3 Ne4 20.Be1 e6 21.Nd2 Nec3 22.Qc2 Qb6 23.Bd5 Ne2 24.Kh1 ed5 25.Nb1? Qb5 26.Nd2 Bf8 27.f4 Bb4 28.Rf2 Ra1! 29.Nb1 Be1 30.Re2 Rb1 31.g4 Bd2! 32.Kg2 Qe2 0–1. Vasapollo – Loschi, 1982.

4.a3 a5 5.c4 e6 6.c5 Bc5 7.bc5 (7.Nc3?? Bf2) 7...Qb2.

4.a3 a5 5.c4 e6 6.Bd4 c5 (6...Qd8 7.ba5 Qa5 8.e3= (8.Bf6 gf6 9.e3 d5 10.cd5) 8...d5 9.cd5 ed5 10.Bf6) 7.Bf6+= gf6 8.b5 (8.bc5 Bc5 9.e3 Be7+/– 10.Nc3) 8...Bg7+= (8...d6 9.g3 Rg8 10.Bg2) 9.Nc3 Qd8 (9...d6 10.e3) 10.e3 (10.d4+=) 10...b6 11.Qc2 Bb7 12.Be2 d5 (12...f5 13.d4+=) 13.d4 (13.cd5 f5+/–) 13...dc4 (better is 13...cd4!? 14.Nd4 dc4 15.Bc4 f5= (15...Bg2? 16.Rg1+–)) 14.dc5+/– bc5 15.Rd1 Qc7 16.Ne4 0-0 17.Qc4 (17.0-0 Nd7+=) 17...Nd7+= 18.0-0 Rac8 (18...Rfd8 19.Ng3+=) 19.Ng3 Ne5 (19...f5 20.Nh5+=) 20.Qh4 (20.Ne5 Qe5 21.Rd7 Bd5+/–) 20...Ng6 (20...Nf3 21.Bf3 Bf3 22.gf3=) 21.Qh5 Rfd8 22.Qg4 (22.Bc4 a4+=) 22...Ne5 (22...Rd1 23.Rd1 f5 24.Qc4=) 23.Ne5+= Qe5 24.Qa4 Qc7 25.Nh5 f5 26.Ng7 Kg7 27.Rc1 Rg8 28.Rc3 Kf8 29.f3+/– Qe5 30.Rfc1 Ke7 31.Qa5 f4 32.Qa7 Rg2?? 33.Kg2+– Rg8 34.Kf1 Qg5 1–0. Mrozinski,W – Ueffing,H, Dortmund, 1987. (=1.Nf3 Nf6 2.b4 c6 3.Bb2 Qb6)

4.a3 a5 5.Bd4 Qc7 6.c4 ab4 7.ab4 Ra1 8.Ba1 e6 9.Bc3 d5 10.d3 b6 11.Nbd2 c5 (11...Bd6 12.e3=) 12.bc5+= bc5 13.e3 Nc6 14.Bf6 gf6 15.cd5 ed5 16.Be2 Rg8 (16...Bd6 17.Qb3 Nb4 18.0-0=) 17.Qb3 Be6 18.g3 d4 (18...Bd6!?+=) 19.Qb5 de3 20.fe3 Bh3 (20...Be7 21.Nb3+/–) 21.d4 Kd8 (21...cd4 22.ed4 Bb4+–) 22.dc5+– Ne5 23.Ne5 Qe5 24.Qb6 Qc7 25.Qf6 Kc8 26.Ba6 Kb8 27.Qb2 Ka7 (27...Ka8 28.Qa2 Kb8 29.Qb3 Ka7+–) 28.Kf2 Bc5 29.Ra1 Qb6 (29...Be3 30.Ke3 Qb6 31.Qb6 Kb6 32.Bd3+–) 30.Bc8 Kb8 31.Qb6 Bb6 32.Bh3 (32...Rg6 33.Bf5+–) 1–0. b4_player (2165) – King_Lotvonen_68 (1825), GameColony.com, 2003.

4.a3 a5 5.Bd4 Qc7 6.e3 d5 (6...d6 7.Bf6 ef6 8.b5=) 7.c4 (7.Be5 Qb6=) 7...Bg4 (7...Nbd7 8.cd5 Nd5 9.Nc3 ab4 10.Nd5 cd5 11.ab4 Ra1 12.Qa1=) 8.cd5 Nd5 9.Nc3 Nf6 (9...Nc3 10.dc3 Nd7 11.e4=+) 10.Be2 (10.b5 Nbd7 11.bc6 bc6 12.Bf6 Nf6=) 10...Bf3 (10...Nfd7 11.ba5 Qa5 12.Ne4=) 11.Bf3 ab4 12.ab4 Ra1 13.Qa1 e5 14.Bc5 Bc5 15.bc5 0-0 16.0-0 Rd8 (16...Na6 17.d4+=) 17.d4 (17.Rd1 Qe7 18.d4 ed4 19.ed4 Re8+=) 17...Nbd7 (17...ed4 18.ed4 b6 19.cb6 Qb6 20.Qb1=) 18.Qa7 (18.Rb1 ed4 19.ed4 Re8+=) 18...ed4 (18...Nf8 19.de5 Qe5 20.Ne2=) 19.ed4 Nf8 20.Rb1 Attacks the backward pawn on b7 (20.Ne2 Re8+=) 20...Rd4= 21.Rb7 Qe5 22.Re7 Qg5 23.Re3 (23.Nd1 N6d7 24.Re3 Qc5 25.Qc5 Nc5=+) 23...Rc4 Attacks the isolani on c5 24.g3 (24.Qa2 Qc5 25.Qd2 Ne6–/+) 24...Qc5–/+ 25.Qc5 Rc5 26.Na4 (26.Ne4 Ne4 27.Re4 g6–/+) 26...Rc4 (26...Rc1 27.Kg2–/+) 27.Nb6 Rc1 28.Kg2 Ne6 29.Rd3 c5 30.Rd6 (30.Nd5 Nd5 31.Bd5 Kf8–/+) 30...g6 (30...Kf8 31.Rc6–/+) 31.Rc6 (31.h3 Kg7–/+) 31...Kg7 32.Nd5 Nd7 33.Nf4 (33.Nc7 Nd4 34.Rd6 Ne5–+) 33...Nf4–+ 34.gf4 Nf6 35.Rc7 Rc3 36.h4 h5 37.Bb7 (37.Rc6 Rc2–+) 37...Rc2 (37...Rc1 38.Bf3–+) 38.Kg3 (38.Kf3 Rb2–+) 38...Ne8 (38...c4 39.Ba6 Ne4 40.Kf3–+) 39.Rd7 Nf6 40.Rc7 Rc1 (40...c4 41.Kf3 c3 42.Be4 Ne4 43.Ke4 Rf2 44.Rc3–+) 41.f3 (41.Kf3 Rc4–+) 41...Rc2 (41...c4 42.Rc5–+) 42.Be4 Rc1 (42...Rc4 43.Rc8–+) 43.f5 (43.Bb7 c4 44.f5–+) 43...Ne4–/+ 44.fe4 gf5 45.e5 Rc4 46.e6 Rg4 47.Kf3? (better 47.Kh3!?–/+) 47...Rh4–+ 48.ef7 (48.Rb7 Re4 49.Rf7 Kg6–+) 48...Rc4 49.Kg3 Kf8 (49...Rg4 50.Kf2 c4 51.Kf3–+) 50.Rd7 Rd4 51.Rc7 c4 52.Kf3 (52.Kg2 Rg4 53.Kh3 f4 54.Rc4 Kf7–+) 52...h4 53.Rc5 (53.Kg2 f4 54.Kg1 f3–+) 53...Kf7 54.Rf5 Ke6 (54...Kg6 55.Rb5–+) 55.Rc5 (55.Rh5 Kd6–+) 55...Kd6 (55...h3 56.Rc6 Kd5 57.Rc8–+) 56.Rc8 Kd5 57.Ke2 Rd3 58.Rd8 Ke4 (58...Ke4 59.Rh8 h3–+) 0–1. De Jong,M (2325) – Pruijssers,R (2500), 19th Hoogeveen Open, 2015. (=1.Nf3 Nf6 2.b4 c6 3.Bb2 Qb6)

4.a3 d5 5.e3 e6 6.c4 Be7 7.cd5 ed5 8.Be2 c5 9.Ne5 (9.Qc2 Nbd7=) 9...cb4 10.a4 (10.Bd4 Qd6=) 10...a5 11.Bd4 Qc7 12.Bb5 Nbd7 13.Nd7 Bd7 14.Bd7 Qd7 15.0-0 0-0 16.Qb3 b5 17.ab5 (17.d3 Rfc8–/+) 17...Qb5 18.Nc3? (18.Ra4 Qc4 19.Qb2 Rfc8–/+) 18...Qd7?? (better is 18...Qd3–+) 19.Na4–/+ Qb7 20.Nb6 (20.Rfc1 Rfb8=+) 20...Ra6–/+ 21.Na4 Ne4 22.Ra2 Rd8 23.d3 Nd6?? (better is 23...Nf6–/+) 24.Nc5+/– a4?? (better is 24...Qc6 25.Na6 Qa6 26.Qb4 ab4 27.Ra6 Nb5+–) 25.Ra4+– Ra4 26.Nb7 Rda8 27.Nd6 Bd6 28.Qd5 R4a6 29.Qg5 Bf8 30.h4 h6 31.Qb5 Ra5 32.Qb6 Ra3 33.Bc5 Bc5 34.Qc5 b3 35.Qb4 R8a4 36.Qb8 Kh7 37.d4 Ra8 38.Qb5 R8a5 39.Qd3 Kg8 40.Qb1 Rb5 41.Rc1 Rba5 42.Rc8 1–0. Pieleck,Rudi – Steingraeber,Barbara, RSX9E – A00 – Sokolsky–1, 2002.

4.Rb1 Nbd7 A) 5.e3 e5 6.Be2 Bd6 7.b5 c5 8.0-0 0-0 9.d3 d4; B) 5.b5 cb5 6.Rb5 a6 7.Rb1 e6 8.e3 Bd6 9.Be2 Qa5; C) 5.h4 e6 (5...e5 6.e3 Bd6 7.Be2 0-0 8.0-0 Nb6 9.d3 Qe7) 6.e3 Bd6 7.Be2 0-0 8.0-0 h6 9.Re1 Ne4; D) 5.a4 e5 (5...h6 6.e3 e5 7.Be2 Bd6 8.0-0 0-0 9.b5 c5) 6.e3 Bd6 7.Be2 0-0 8.0-0 e4 9.Nd4 Ne5; E) 5.d3 e5 6.g3 a5 7.b5 Bb4 8.Bd2 Qc7 9.Bh3 0-0; F) 5.g3 e5 6.d3 Bd6 7.Bg2 d4 8.Ne4 Ne4 9.de4 Nf6; G) 5.d4 e6 6.g3 a5 7.b5 Bb4 8.Bd2 c5 9.Bg2 cd4.

4.d4 A) 4...Nbd7 5.a3 Ne4 (5...e6 6.g3 b5 7.Bf4 a5 8.Rb1 ab4 9.ab4 Ra3; 5...b5 6.Rb1 a5 7.Bf4 ab4 8.ab4 Ra3 9.Qd2 Nh5) 6.Ne4 de4 7.Nd2 Nf6 8.Bb2 g6 9.e3 Bg7; B) 4...e6 5.a3 Bd6 (5...Be7 6.e3 a5 7.b5 Bd7 8.Rb1 0-0 9.Bd3 cb5) 6.g3 0-0 7.Bg2 a5 8.b5 Bd7 9.Rb1 cb5.

4.e3 Nbd7 5.Rb1 (5.b5 e5 6.bc6 bc6 7.Rb1 Bd6 8.Be2 Qa5 9.0-0 0-0; 5.Be2 e5 6.a3 Bd6 7.0-0 0-0 8.Bb2 e4 9.Nd4 Ne5) 5...e5 (5...e6 6.Be2 Bd6 7.0-0 0-0 8.b5 c5 9.h3 Nb6) 6.Be2 Bd6 7.0-0 0-0 8.h3 e4 9.Nd4 Ne5.

4.e3 e5 5.Ne5 Bb4 (5...Bd6 6.Nd3 0-0 7.Be2 Bf5 8.Bb2 Nbd7 9.0-0 h6) 6.Be2 Bd6 7.f4 Nbd7 8.Nd3 Ne4 9.0-0 Nc3.

4.e3 Bf5 5.Be2 e6 6.Rb1 h6 7.0-0 Be7 8.Nd4 Bh7 9.f4 0-0 10.Bd3 (10.a4 a5 11.ba5 c5=) 10...b6 11.Bh7 Kh7 12.Qf3 c5 13.bc5 bc5 14.Nde2 Nc6 15.Bb2 Rb8 16.g4 Nb4 17.g5 Ng8 18.a3 Nc2 19.Rfc1 Rb2 20.Rb2 Na3 21.Ra2 Nc4 22.d3 (worse is 22.Ra7 Nd2 23.Qh3 c4+=) 22...Na5 23.h4 (23.Rb1!?=) 23...c4+= 24.dc4 Nc4 25.Nd4 (25.Ra7? Bc5 26.Rca1 Be3 27.Kh2 Ba7 28.Qd3 Kh8 29.Ra7 Ne7–+) 25...Bc5 26.Rg2 Bd4 27.ed4 Ne7 28.Qd3 Kh8 29.Kh1 Nf5 30.h5 Qd6 31.Ne2 a5 32.g6 fg6 33.hg6 a4 34.Ra1 a3 35.Qb3 Qe7 36.Qb5 Nce3 37.Rh2 Ng4 38.Rh5 Qf6 39.Qc5 Kg8 40.Ra3 (40.Qa3 Qg6 41.Rh3 Nf2 42.Kh2 Nh3 43.Qh3 Rb8–+) 40...Qg6 41.Rhh3 (41.Rf5 Rf5 (41...ef5?! 42.Qd5 Kh7 43.Qg2–+) 42.Ng3 Rf4–+) 41...Nf2 42.Kh2 Nh3 43.Kh3 0–1. Johannessen,Svein (2200) – Storland,Knut Harald (2200), NOR–ch Stavanger, 1997. (=1.Nf3 Nf6 2.b4 c6)

4.e3 Bg4 5.h3 (5.Rb1 Nbd7 (5...e6 6.Be2 Nbd7 7.0-0 Bd6 8.h3 Bh5 9.d3 0-0) 6.b5 c5 7.h3 Bf3 8.Qf3 e6 9.Qf4 Qb6; 5.Be2 e6 6.Rb1 Bd6 7.b5 0-0 8.0-0 Qc7 9.h3 Bf3; 5.a3 e6 6.Bb2 Nbd7 7.Be2 Bd6 8.0-0 Qc7 9.h3 Bf3) 5...Bh5 (5...Bf3 6.gf3 Qd6 7.Rb1 Nbd7 8.b5 c5 9.Ba3 g6) 6.g4 (6.Rb1 Nbd7 7.Be2 e6 8.0-0 Bd6 9.d3 0-0) 6...Bg6 7.Ne5 (7.Bb2 Nbd7 8.g5 Ne4 9.h4 e5) 7...Nbd7 (7...e6 8.Rb1 Nbd7 9.Ng6 hg6) 8.Ng6 hg6 9.Bg2 (9.g5 Nh5) 9...e5 (9...Ne5+=) 10.Rb1 Bd6 11.b5 Qa5 12.g5 Ng8 13.h4 Qd8 14.Qe2 Ne7 15.bc6 bc6 16.e4 d4 17.Na4 Qa5 18.Qc4 ½–½. Johannessen,S (2305) – Eriksen,T (2240), ch–NOR, Asker NOR, 2000.

4.Qa4 d5 5.b5 dc4 6.Qc4 Bd7 7.Nc3 cb5 8.Nb5 Na6.

4.Qa4 e5 5.Ne5 Bb4 6.a3 Be7 7.d4 d6 8.Nf3 Bf5.

4.ba5 Qa5 5.Bb2 d6 (5...d5 6.cd5 cd5 7.e3 Nc6 8.Bc3 Qb6) 6.Bc3 Qa4 7.Qa4 Ra4 8.Bf6 ef6.

4.ba5 d5 5.e3 Qa5 6.Bb2 Nbd7 7.Bc3 Qa4 8.Qa4 Ra4.

4.b5 cb5 5.cb5 d5 6.e3 Bg4 (6...e6 7.d4 Nbd7 8.Bd3 Ne4 9.Nbd2 Ndf6 10.0-0 Bd6 11.Ne5 0-0; 6...e5 7.Bb2 e4 8.Nd4 Nbd7 9.Nc3 Bd6 10.Rc1 0-0 11.Be2 Ne5; 6...Bf5 7.Nc3 Nbd7 8.Ba3 e5 9.Bf8 Kf8 10.Be2 Rc8 11.Rc1 g6; 6...Nbd7 7.Ba3 e5 8.Bf8 Kf8 9.Be2 g6 10.0-0 Kg7 11.Nc3 e4) 7.Be2 (7.Nc3 Nbd7 8.h3 Bf3 9.Qf3 e6 10.Bb2 Rc8 11.Rc1 Bd6) 7...e6 (7...Nbd7 8.Bb2 e6 9.Nc3 Rc8 10.Rc1 Bb4 11.0-0 0-0) 8.Bb2 (8.Nc3 Nbd7 9.0-0 Bf3 10.Bf3 Rc8 11.Bb2 Ne5) 8...Be7 (8...Nbd7 9.Nc3 Bd6 10.0-0 Bf3 11.Bf3 Ne5) 9.0-0 (9.h3 Bf3 10.Bf3 Nbd7 11.d4 Nb6) 9...Nbd7 10.d3 (10.h3 Bf3 11.Bf3 0-0) 10...a4 (10...0-0 11.h3 Bf3) 11.a3 (11.Nbd2 Qa5) 11...Qa5 (11...0-0+=) 12.Nc3 Nc5 13.Nd4 Be2 14.Qe2 0-0 15.e4 Rfd8 16.e5 Nfd7 17.f4 Nb3 18.Nb3 ab3 19.d4 Rdc8 20.Rf3 Rc4 21.Qd1 (better is 21.Rd3!?=) 21...Rd4!–/+ 22.Qb3 (22.Qd4 Bc5 Pinning (22...Bc5 Decoy)) 22...Rd2 23.Bc1 Qb6 24.Kf1 Nc5 25.Qb1 Ne4! 26.Ne4 Rd1 (26...de4?! 27.Bd2 ef3 28.Qd3+=) 27.Ke2 Qg1 (27...de4?! 28.Rf1 Rd3 29.a4–+) 28.Nd2 Qe1 29.Kd3 Rc8 30.Re3 Qf1 31.Re2 Qf4 (31...Rcc1?! 32.Qc1 Rc1 33.Nf1 Ra1 34.Nd2–+) 32.Bb2 Qf5 (32...Rd2 33.Rd2 Qe4) 33.Ke3 Bc5 (33...Bg5 34.Kd4 Rc4) 34.Bd4 Bd4 35.Kd4 Rc4 36.Ke3 Qf4 (36...d4) 37.Kd3 Qd4 0–1. Schlachowitsch,Markus (2030) – Meyner,Hannes (2195), Staufenberg GER, 1st Muender Open, 2011. (=1.Nf3 Nf6 2.b4 c6)

4.b5 d5 5.e3= (5.Qa4 dc4 6.Nc3 Bd7 7.Qc4 cb5 8.Nb5 Nc6; 5.cd5 cb5 6.Bb2 Nd5 7.e4 Nc7 8.Nc3 b4; 5.bc6 Nc6 6.cd5 Nd5 7.e4 Ndb4 8.a3 Nd3) 5...cb5 6.cb5 Bg4 7.d4 Nbd7 8.Be2 Rc8.

4.b5 g6 5.Bb2 (5.d4 Bg7 (5...cb5 6.cb5 d5 7.Bf4 Bg4 8.Nbd2 Bf3; 5...d6 6.e3 Bg7 7.Bd3 e5 8.de5 Bg4) 6.e3 0-0 7.Bd3 d5 8.0-0 dc4; 5.e3 Bg7 (5...cb5 6.cb5 d5 7.d4 Bf5 8.Bd3 Bd3) 6.d4 0-0 7.Nc3 cb5 8.cb5 d6; 5.Nc3 Bg7 (5...cb5 6.Nb5 Bg7 7.d4 0-0 8.e3 Nc6; 5...d6 6.d4 Bg7 7.Bg5 0-0 8.e3 Nbd7) 6.d4 0-0 7.e4 d5 8.bc6 bc6) 5...Bg7 6.e3 (6.Nc3 0-0 7.e3 c5 8.Rb1 Re8) 6...cb5 (6...0-0 7.Nc3 d5 8.d4 cb5) 7.cb5 0-0 8.d4 (8.Be2 d5) 8...d5 9.Bd3 Bg4 10.Nbd2 Nbd7 11.a4 Qb6 (11...Rc8 12.h3 Be6 13.0-0=) 12.0-0 (12.h3 Bf3 13.Qf3 Qe6+=) 12...Rac8= 13.Rc1 Rc7 (13...Qe6 14.Qb3=) 14.Rc7+= Qc7 15.Qc1 Rc8 16.Qc7 (16.Qa1 Qd8+=) 16...Rc7= 17.Rc1 Rc1 18.Bc1 Kf8 19.Ba3 Ke8 20.h3 Bf5 21.Bf5 gf5 22.Nb3 b6 23.Nfd2 Ne4 24.Ne4 (24.Nb1 h5=) 24...fe4 25.Kf1 Nf6 26.Nd2 Kd7 27.Ke2 Ne8 28.f3 ef3 29.Nf3 Bf6 (29...h5 30.g3=) 30.Nh2 (30.g4 h6+=) 30...Nc7= 31.Ng4 Bg7 32.Nf2 Ne6 33.Kd3 Ng5 (33...f5 34.Nd1=) 34.h4+= Ne6 35.g4 Bf6 36.g5 Bg7 37.Nh3 f6 38.Nf4 Nf4 39.ef4 h5 40.Ke3 (40.f5 fg5 41.hg5 h4+/–) 40...f5 (40...fg5 41.fg5 e5 42.de5 Be5 43.Kf3+=) 41.Kd3+= Bf8 42.Kc3 Bg7 ½–½. Koskinen – Tirkkonen, Uusikaupunki FIN, 1992. (=1.Nf3 Nf6 2.b4 c6 3.c4 a5)

4.cd5 cd5 5.Bb2 Qb6 6.a3 a5 7.Bd4 Qd6 8.Nc3 Nc6 9.Bc5 Qd8 10.b5 Nd7 (10...b6 11.Be3 Na7 12.Bd4=) 11.bc6+/– Nc5 12.d4 Ne4 13.cb7 Bb7 14.Ne4 de4 15.Qa4 Qd7 16.Qd7 Kd7 17.Ne5 Ke8 18.e3 Ba6 19.Ba6 Ra6 20.0-0 f6 21.Nc4 e6 22.Rfb1 Bd6 (22...Kf7!?+/–) 23.Rb7+– (23.Nd6?! Rd6 24.Rb7 Rd7+/–) 23...Kf8?? (better is 23...Rg8+–) 24.Nd6 g5 (24...Rd6 25.Rb8 Kf7 26.Rh8 Kg6+–) 25.Rc1 Ra8 26.Rcc7 (26.Rcc7 Rd8 27.Rf7 Kg8 28.Rg7 Kf8 29.Rbf7) 1–0. Lehr,Thomas – Schulze,Thimo Sebastian, Schleswig Holstein–ch qual, 1996. (=1.Nf3 Nf6 2.b4 c6 3.c4 d5)

4.e3 dc4 5.Bc4 Bg4 6.Ne5 Be6 7.Be6 fe6 8.d4 Nbd7 9.Nd3 Qb6 10.0-0 0-0-0 11.Bb2 Ne8 12.a4 Ndf6 13.Na3 Nd5 14.Nc4 Qc7 15.b5 cb5 16.Nce5 Kb8 17.ab5 Nb6 18.Qb3 Rd5 19.Rfc1 Qc1 20.Rc1 Nd6 21.Nc5 Re5 22.de5 Ne8 23.Qe6 Nc7 24.Nd7 (24...Nd7 25.Qd7 a5 26.Qd8 Ka7 27.Bd4 b6 28.Rc7#) 1–0. pierre (2075) – narendras, internet, 2007.

4.e3 Bg4 5.Bb2 e6 6.Qb3 Nbd7 7.cd5 ed5 8.Be2 Bd6 9.h3 Be6 10.Nd4 Qe7 11.b5 c5 12.Ne6 fe6 13.d3 0-0 14.0-0 Kh8 15.Nc3 Nb6 16.Na4 e5 17.Nb6 ab6 18.Bf3 e4 19.de4 de4 20.Be2 Rae8 21.Rad1 Bb8 22.Rd2 Qc7 23.g3 Qc8 24.Kg2 Qf5 25.Qd1 Be5 26.Be5 Qe5 27.Bc4 h5 28.Rd6 h4 29.gh4 g5 30.Rb6 Rd8 31.Qa1 Qf5 32.hg5 Qg5 33.Kh2 Qh4 34.Qe5 Rd7 35.Rg1 Qf2 36.Rg2 Qh4 37.Rf6 1–0. Lombardy – Quinteros, 1974.

4.Bb2 Bg7 5.e4 Qb6 6.a3 a5 7.c5 Qc7 8.Bc4 ab4 9.ab4 Ra1 10.Ba1 b5 11.Bb3 0-0 12.Ng5 h6 13.Nf7 Rf7 14.Bf7 Kf7 15.Qf3 d6 16.d4 Bg4 17.Qf4 g5 18.Qg3 Bh5 19.e5 de5 20.de5 Nd5 21.0-0 Na6 22.Qh3 Bg6 23.Re1 Nab4 24.Nc3 Nc2 25.Nd5 cd5 26.Qf3 Ke8 27.Qd5 Ne1 28.e6 Ba1 29.Qa8 1–0. Zorzi – Marletta, 1978.

4.Bb2 Bg7 5.g3 0-0 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3 c6).

4.Nc3 a5 5.b5 Bg7 (5...cb5 6.Nb5 Bg7 7.Bb2 0-0 8.e3 Nc6; 5...d6 6.d4 cb5 7.cb5 Bf5 8.Nh4 Be6) 6.d4 d5 7.e3 0-0 8.Be2 Ne4.

4.Nc3 d5 5.cd5 cd5 6.d4 Bg7 7.Bf4 0-0 8.Rc1 Bf5.

4.Nc3 Bg7 5.d4 (5.e3 0-0 (5...d6 6.d4 c5 7.bc5 dc5 8.Be2 0-0; 5...d5 6.d4 0-0 7.cd5 cd5 8.Bd3 Bg4; 5...a5 6.b5 cb5 7.Nb5 Nc6 8.d4 0-0) 6.d4 d6 7.Bd3 e5 8.0-0 Qe7) 5...d5 6.e3 Bf5 (6...0-0 7.Qb3 Be6 8.cd5 Nd5) 7.Qb3 (7.Be2 dc4 8.Bc4 b5) 7...dc4 (7...0-0 8.Be2= dc4) 8.Bc4+= 0-0 (8...e6+=) 9.Ng5 (9.0-0 Qd6+=) 9...e6= 10.h3 b5 11.Be2 h6 12.g4 hg5 13.gf5 gf5 (13...ef5 14.a4=) 14.Rg1 Nd5 15.Nd5 ed5 16.Qc2 (16.a4 ba4 17.Qc2 Qf6=) 16...Qf6+= 17.Bd3 Re8 18.Bf5 Qd4 19.Rb1 Qc4 (19...Qh4!?=) 20.Rg5+= Kf8 21.Rg4 (21.Bd2 d4 22.Qb3 de3 23.Be3 a5 24.Qc4 bc4+/–) 21...Qc2= 22.Bc2 a5 (22...Nd7 23.Rg2=) 23.ba5 (23.Bd2 a4+=) 23...Bc3 24.Ke2 Ra5 25.Kd3 b4 26.a3 c5 27.ab4 cb4 28.Bd2 Rc8?? (better is 28...Bd2 29.Kd2 Nc6=) 29.Rgb4+– (29.Rbb4?! Bd2 30.Kd2 Ra2=) 29...Na6 (29...Nd7 30.Bc3 Rac5+–) 30.Bc3 Rac5 31.R4b3 Kg8 (31...Rc4 32.Kd2+–) 32.Bd1 (32.Kd2 Rc4+–) 32...Rc4 33.Bd4 Kh7 (33...Nc5 34.Bc5 R8c5 35.Bf3+–) 34.Rb6 (34.Rb7 R8c7+–) 34...Ra8 35.Kd2 Nc7 36.Bc2 Kg8 37.Rb8 (37.Rb8 Ne8 38.Ra8 Rc2 39.Kc2 Kf8 40.Rbb8 Ke7 41.Ra7 Nc7 42.Rc7 Ke6 43.Re8 Kf5 44.Rf7 Kg6 45.Rg7 Kf5 46.Rf8 Ke6 47.Rf6#) 1–0. Querol Soro,Sergio (2175) – Neila Castillo,Miguel Angel, Aragon–chT Zaragoza, 1999.

4.d4 d5 A) 5.cd5 Nd5 (5...cd5 6.e3 Bg7 7.Bd3 Bf5 8.Bf5 gf5) 6.a3 a5 7.e4 Nf6 8.e5 Nd5; B) 5.c5 Bg7 (5...Bf5 6.e3 Bg7 7.Be2 a5 8.Qb3 Ne4; 5...Bg4 6.Ne5 Bf5 7.e3 Nbd7 8.Nf3 Bg7) 6.e3 Ne4 7.Bd3 a5 8.Nfd2 ab4; C) 5.e3 Bg4 6.h3 Bf3 7.Qf3 Nbd7 8.a3 e5.

4.e3 a5 5.b5 cb5 6.cb5 d5 7.Be2 Bg7 8.d4 0-0.

4.e3 d5 5.d4 Bg4 6.h3 Bf3 7.Qf3 Nbd7 8.a3 e5.

4.a3 a5 5.ba5 Ra5 6.d4 d5 7.Bd2 Ra8 8.c4 e6 9.c5 Qc7 10.Qb3 Nbd7 11.Be2 e5 12.0-0 Be7 13.Nc3 0-0 14.Na4 Ne4 15.Bb4 ed4 16.ed4 Bf6 17.Rad1 Re8 18.Rfe1 Rb8 19.Bd3 Nf8 20.Qc2 (better is 20.Nc3!? Bf5 21.Rb1=) 20...Bg4–/+ 21.Be4 de4 22.Re4 Bf5 23.Rde1 (23.Nc3 Rbd8–/+) 23...Be4 (23...Re4!? 24.Re4 Ne6–/+ (worse is 24...Be4 25.Qe4 Nd7 26.Nc3+=)) 24.Re4+= Re4 25.Qe4 Ne6 26.Nb6 Qf4 (26...Re8!? 27.d5 cd5 28.Nd5 Qd8+=) 27.Qf4= Nf4 28.Nd7 Ra8 29.Nf6 gf6 30.Kf1 Nd5 31.Ne1 Nb4 32.ab4 Ra2 33.Nf3 0–1. Wiezer,Siegfried (2030) – Melamed,Tatiana (2290), Schneeberg op, 2009. (=1.Nf3 Nf6 2.b4 c6 3.e3 Qb6)

4.a3 a5 5.b5 cb5 6.Nc3 d5 7.Nb5 Bd7 8.Rb1 Qd8 9.Bb2 Nc6 10.Bd3 Bg4 11.Be2 e6 12.0-0 Be7 13.Ne5 Be2 14.Qe2 0-0 15.f4 Rc8 16.d3 Ne8 17.Rf3 f6 18.Nc6 bc6 19.Nd4 Qd7 20.f5 Nc7 21.fe6 Ne6 22.Nf5 Rb8 ½–½. Mastropietro,M – Gonzini,G, ITA op–A Italy, 1997. (=1.Nf3 Nf6 2.b4 c6)

4.a3 a5 5.b5 d5 6.a4 (6.Nc3 Qc7=) 6...Bg4 7.h3 Bf3 8.Qf3 e5 9.Be2 Nbd7 10.g4 (10.Nc3 Bb4=) 10...Bd6=+ 11.Ba3 Qc7 12.0-0 Ba3 13.Ra3 Qd6 14.d3 d4 15.c4 Nc5 16.Ra2 e4 17.de4 d3 (worse 17...Nce4 18.Rd1+=) 18.Rd2 h5 19.g5 (19.gh5 Rd8 (worse 19...Nfe4 20.Rd3 Qe7 21.bc6+=) 20.Rfd1 Nfe4 (worse 20...Nh5 21.Bd3 Qe5 22.bc6+–) 21.Rd3 Nd3 22.Qe4 Qe5+=) 19...Nfe4–/+ 20.Rd3 Qg6 (20...Nd3? 21.Qe4 Ne5 22.f4+–) 21.h4 (21.bc6!? Ng5 22.Qg3 bc6 23.Rd6 Nh3 24.Kh2 Qg3 25.fg3=+) 21...Nd3–+ (21...Na4?! 22.bc6 bc6 23.Rd4=) 22.Bd3 Ng5 23.hg5 Qd3 24.bc6 Qc4 25.cb7 Threatening mate... how? 25...Rb8 26.Nd2 Qa4 27.Ne4 0-0 28.Kg2 Rbe8 (28...Qd7!?–+) 29.Nd6–/+ Rd8 (29...Re5 30.Rb1 Rg5 31.Kf1=+) 30.Nf5 (30.Rb1 Qc2 31.b8Q Rb8 32.Rb8 Rb8 33.Qf7 Kh8 34.Qh5 Qh7=) 30...Rfe8 (30...Rd7!? 31.Rb1 Rb8–/+) 31.Qh5 Qe4 32.Qf3 Rb8 (32...Qf3 33.Kf3 Rd7 34.Ra1=+) 33.Ra1 (33.Qe4 Re4 34.Rc1 Rb7=) 33...Qf3=+ (worse 33...Rb7 34.Qe4 Re4 35.Nd6 Rg4 36.Kh3+–; worse 33...Qb7 34.Qb7 Rb7 35.Nd6+–) 34.Kf3 Re5 (worse 34...Rb7 35.Nd6 Reb8 36.Nb7 Rb7 37.Ra5+–) 35.Kf4 Rb5 36.Nd4 Rc5 37.Rb1 a4 38.Rb4 a3 39.Ra4 Rb7 40.Ra3 g6 41.Kg4 Kf8 42.f4 Ke7 43.Nf3 (43.Ra6 Rbc7=) 43...Rcb5 (43...Rbc7 44.e4=+) 44.Nd4 R5b6 45.Kf3 Kd6 46.Ke4 Kc5 (46...Re7 47.Kd3=+) 47.Rc3= Kb4 48.Kd3 Ka4 49.Rc4 (49.Rc8 Rb1=) 49...Ka3 50.Ke4 Kb2 51.Kd3 Kb1 52.Ke4 Ra6 53.Nf3 Kb2 54.Ne5 Kb3 55.Rc8 Raa7 56.Rd8 Kc3 57.Rd3 Kc2 58.Rd4 (58.Rd8 Rb3=) 58...Ra3 59.Rd8 Rc7 (59...Rbb3 60.Rc8 Kd1 61.Nc4=+) 60.Rd6 (60.Kf3 Rcc3 61.Ng4 Ra7=) 60...Kc1 (60...Rcc3 61.Ng4 Ra7 62.Rd4=+) 61.Rd8 (61.Rf6 Raa7=) 61...Raa7 (61...Rcc3 62.Ng4 Ra7 63.Kf3=) 62.Rd6 ½–½. Pang Yui Kuen (1980) – Henriquez Villagra,Cristobal (2515), 43rd Olympiad, 2018. (=1.Nf3 Nf6 2.b4 c6 3.e3 Qb6)

4.a3 a5 5.b5 e6 6.c4 cb5 7.cb5 d5 8.Nc3 Nbd7 9.d4 Bd6 10.Bb2 0-0 11.Be2 Qd8 12.0-0 Nb6 13.Bd3 Qe7 14.Ne5 Nfd7 15.f4 f6 16.Nf3 f5 17.Ne5 Nf6 18.Na4 Na4 19.Qa4 Bd7 20.Rac1 Rfc8 21.Rc8 Bc8 22.h3 ½–½. Moskalenko,Viktor (2480) – Vorobiov,Evgeny E (2320), Moscow GM4, 1996. (=1.Nf3 Nf6 2.b4 c6)

4.a3 g6 5.Bb2 a5 (5...Bg7 6.Nc3+=) 6.Bd4 Qc7 7.b5 (7.Nc3 d6 8.Bf6 ef6=) 7...Bg7= 8.Be2 (8.Nc3 d6 9.bc6 bc6=) 8...0-0 9.0-0 d6 10.d3 (10.Bb2!?=+) 10...cb5–/+ 11.Nbd2 e5 12.Bb2 Nc6 Black intends b4 13.Qb1 (13.h3 Bf5–/+) 13...Re8 14.Bc3 Bd7 15.Re1 Nd5 Black intends b4 16.Bb2 b4 17.ab4 Ncb4 (17...ab4!? 18.Ng5 h6–+) 18.c4–/+ Ne7 19.Ne4 Bc6 20.d4 (20.Rc1!?–/+) 20...Be4–+ 21.Qe4 Nec6 (21...ed4!? 22.ed4 Nf5–+) 22.d5=+ Ne7 23.Rec1 Na6 24.h4 (24.Ba3!?=+) 24...Nc5–/+ 25.Qc2 h6 (better 25...a4!?–/+) 26.Nd2= Nf5 27.h5 (27.Ne4 h5=) 27...e4=+ 28.hg6 fg6 29.Bg7 Ng7 30.Rcb1 (30.Nb3 Nb3 31.Qb3 b6=+) 30...Re7 (better 30...a4–/+) 31.Rb5= a4 32.Rc5 (32.Nb3 Nd7+=) 32...Qc5 (32...dc5!? 33.Ne4 Qe5=+) 33.Ne4= Qc7 34.Nc3 Can a4 get defended? (34.c5 Nf5 35.Nd6 Rg7 36.Nf5 gf5+–) 34...Kh7 (better 34...Nf5!?=+) 35.Bd3+= Nf5 36.g4?? (better 36.Bf5 gf5 A) worse 37.Na4 Re4 38.Rb1 A1) worse 38...Qc4 39.Qc4 (39.Rb7?! Kg6 40.Qb2 Qa4 41.Qg7 Kh5 42.Qf7 Kg5 43.Qg7 Kh5 44.Qf7 Kg5 45.Qg7 Kh5=) 39...Rc4 40.Nb6+–; A2) 38...Kg6=+; B) 37.Ra4?! Ra4 38.Qf5 Kg7 39.Qg4 Kf8 40.Na4 Qa5 41.Qf4 Ke8+=; C) 37.Qf5 Kg7 38.Qg4 Kh7 39.Nb5+=) 36...Nh4–/+ 37.Nb5 Qd7 38.Be2 Rf8 39.Nd4 h5 (39...Ref7!? 40.f4 Ra8=+) 40.Qa4= Qc8 41.Ne6 (41.Qb4 Rf6 (41...hg4? 42.Qd6 Rff7 43.Qg3+–) 42.Ra3 hg4=) 41...Re6=+ 42.de6 Qe6 43.Qb5 (43.gh5?? Qh3 44.Qd7 Qd7–+) 43...hg4 (43...Qf6 44.Rf1 Nf3 45.Bf3 Qf3=+) 44.Ra7 (44.Qb7 Kh6 45.Qh1=) 44...Qf5?? (44...Kh6 45.Qb7 (45.Rb7 Qf6 46.f4 gf3 47.Rh7 Kh7 48.c5 fe2 49.Qe2 Qa1 50.Kh2 Nf3 51.Kg3 Qe5 52.Kg4 Qe4 53.Kg3 Qh4 54.Kg2 Qg4 55.Kh1 Qg1) 45...Qf5 46.Qg7 Kh5 47.Ra5 Qa5 48.Qf8 Qe1 49.Bf1–/+) 45.Qb7 (45.Rb7 Kh6 46.Qf5 Rf5 47.Rb6 (worse 47.Bg4 Rg5 48.f3 Nf3 49.Kf2 Rg4 50.Kf3 Rc4=) 47...Nf3 48.Kg2+–) 45...Kh6=+ 46.Qg7 Kg5 (better 46...Kh5 47.Ra5 Qa5 48.Qf8 Qe1 49.Bf1 g3 50.fg3 Nf5–/+ (50...Qg3?! 51.Kh1=; 50...Qe3?! 51.Qf2 Nf3 52.Kg2 Ne1 53.Kg1 Nf3 54.Kg2 Ne1 55.Kg1 Nf3=)) 47.Qe7?? (better 47.Ra5! Qa5 48.Qf8 Qa1 49.Kh2=) 47...Rf6–+ 48.f4 gf3 49.e4 Qg4 (49...Qg4 50.Kf2 Qg2 51.Ke3 Qe2 52.Kd4 Qd2) 0–1. Perdomo Araujo,A E (2050) – Aranda Marin,Cristian (2350), 81st Spanish Championship Rapid, 2016.

4.c3 a5 5.Qb3 ab4 6.cb4 d5 (6...Na6 7.Ba6 ba6 8.Nc3=) 7.Bb2 e6 8.b5 (8.a3 c5=) 8...Nbd7=+ 9.a4 (9.bc6 bc6 10.Qb6 Nb6=+) 9...c5 (9...Bd6 10.Nc3=+) 10.Qc2 (10.d3=+) 10...c4 (10...Bd6!?=+) 11.d3= cd3 12.Bd3 Nc5 13.Be2 (13.0-0 Bd6+=) 13...Nce4 (13...Bd6 14.Nbd2=+) 14.0-0= Bc5 (14...Bd7 15.a5 Qd8 16.Nbd2+=) 15.Bd4 (better 15.Nc3!?+–) 15...Bd4=+ 16.ed4 0-0 17.Rd1 (17.Qb2 Bd7=) 17...Bd7 (17...Ng4 18.Rc1=) 18.Ne5 Rfc8 19.Nd7 (19.Qb2!?=) 19...Nd7–/+ (19...Rc2? 20.Nb6 Rd8 21.Re1+–) 20.Qb2 Qc7 21.Bd3 Ndf6 (21...b6 22.f3 Nef6 23.g3=+) 22.f3 Nd6 23.Qf2 (23.a5 Nc4 (23...Ra5?? 24.b6 Qd8 25.Ra5+–) 24.Bc4 Qc4=) 23...Nc4 24.Rc1 Qa5 25.Bc4 (25.Nc3 Nd6 26.Qb2 b6=+) 25...Rc4–/+ 26.Rc4 dc4 27.Qd2 Nd5 (27...Qd8 28.Nc3–/+) 28.Qa5=+ Ra5 29.Nd2 (29.Kf2 Ra8=+) 29...Nb6 30.Kf2 Kf8 (30...f5 31.Ra3–/+) 31.Ne4= Ra4 (worse 31...Na4 32.Nc3 Nc3 33.Ra5+–) 32.Ra4 Na4 33.Nd6 Nc3 34.b6 Nd5 (34...Nd1 35.Ke2 Nb2 36.Kd2=) 35.Nc4 Ke7 36.Na5 Nb6 37.Nb7 Nc4 38.Ke2 Nd6 39.Nc5 (39.Nd6 Kd6 40.Kd3 e5=) 39...Nf5 40.Nb3 Kd6 41.g4 Ne7 42.f4 Kd5 43.Kd3 Nc6 The isolani on d4 becomes a target 44.g5 Ne7 (44...h6 45.gh6 gh6 46.h3=+) 45.Nd2 Nf5 46.Ne4 Kc6 47.Ng3 Ng3 48.hg3 Kd5 49.g4?? (better 49.Ke3=) 49...f5–+ 50.gf6 gf6 51.f5 (51.g5 f5 52.Ke3–+) 51...ef5 52.gf5 h6 53.Kc3 h5 54.Kd3 h4 55.Ke3 h3 56.Kf3 Kd4 57.Kg3 Ke4 58.Kh3 Kf5 59.Kg3 Ke4 1–0. Barsamian,Eduard – Magrifin,Iljanor, Fide Open, 2013. (=1.Nf3 Nf6 2.b4 c6 3.e3 Qb6)

4.a3 a5 5.b5 cb5 6.Bb5 Ne4 7.Bb2 Qb6 8.c4 Nc6 9.Nc3 Nd6 10.Qa4 Be7 11.0-0 0-0 12.Rfc1 Re8 13.Rab1 Bf6 14.d3 h6 15.Nd2 Bc3 16.Bc3 e5 17.Nf3 e4 18.de4 Ne4 19.c5 Nc5 20.Qb4?? (20.Qg4) 0–1. themonkey – TheRayKing, GameColony.com, 2002.

4.a3 d5 5.d4 Bd6 6.c4 0-0 7.Nbd2 Nbd7 8.Bb2 Qe7 9.Bd3 (9.c5 Bc7=) 9...e5 10.c5 Bb8 (10...Bc7 11.de5 Ne5 12.Be5 Be5 13.Ne5 Qe5 14.0-0=) 11.de5 Ne5 12.Ne5 (12.Be5 Be5 13.Ne5 Qe5=) 12...Be5 13.Qc2 Bb2 14.Qb2 Ne4 15.Be4 de4 16.0-0 Bg4 (16...Rd8 17.Nc4=) 17.Nc4+= Qg5 18.Qe5 (18.Kh1 Rad8+=) 18...Qe5= 19.Ne5 Be2 20.Rfe1 Ba6 (20...Bd3 21.Red1 Rad8 22.Nd3 Rd3 23.Kf1=) 21.Rac1 (21.Rad1 Rfd8 22.Rc1 Rd2+=) 21...Rad8 22.Nc4 Bc4 23.Rc4 f5 24.f3 ef3 (24...Rfe8 25.Kf2=) 25.gf3 Rd3 26.a4 Rfd8 27.Kf2 Ra3 28.a5 g6 (28...Rd2 29.Kg3=) 29.Rf4 (29.Re2 Rb3=) 29...Rdd3 (29...Rd2 30.Re2 Re2 31.Ke2 Ra2 32.Kf1=) 30.Re2 (30.h3 Ra4=) 30...Kg7 (30...Rab3 31.h4=) 31.Re1 (31.e4 Rd4 32.Rb2 Ra4+=) 31...Kf6 (31...Ra4 32.h3+=) 32.h4 (32.Rh4 Ra2 33.Re2 Rdd2 34.Rd2 Rd2 35.Ke1 Rd7=) 32...Ra2 (32...Ke5 33.Rc4+=) 33.Re2 Ra1 34.Rc4 Rb1 35.Rec2 (35.e4 Rbb3 36.f4 Rh3 37.e5 Ke6–/+) 35...Ke5 36.Ra2 Rh1 37.a6?? (better is 37.Re2–/+) ½–½. Baer,Werner – Schulz,Hans_Juergen, TT–12.20 ETC, 2004.

4.c3 Be7 5.d4 d5 6.Bd3 0-0 7.0-0 Nbd7 8.Nbd2 Bd6 9.Qc2 h6 10.Re1 e5 11.e4 Qe7 12.ed5+/– Nd5 13.Nc4 f6?? 14.Nh4 Rd8 15.Bh7 Kf7 16.Qg6 Kf8 17.Nd6 N7b6 18.Qh5 Qd6 19.Ng6 Ke8 20.Ne5 (20...g6 21.Qg6 Ke7 22.Qf7#) 1–0. albatroz (1820) – ismaelarango, internet, 2005.

3.a3 d6 4.Bb2 Bf5 5.e3 Rc8 6.d4 e6 7.Bd3 Ne4 8.Nbd2 Nd2 9.Qd2 Qf6 10.Bf5 Qf5 (< 10...ef5 11.c4+/–) 11.Rc1 Be7 12.c4 0-0 13.0-0 Bf6 14.d5 (better is 14.Qc2!?+=) 14...Bb2=+ 15.Qb2 ed5 16.cd5 Qd5 17.Rfd1 Qe4 18.Nd4 Ne5 19.Rc3 Rfe8 20.Rdc1? (better is 20.Qc1 Re7 21.Nb5=) 20...Nd3–+ 21.Qc2 Nc1 22.Qc1 c6 23.Nf3 Rc7 24.b5 c5 25.Rc4 Qd3 26.h3 Qe2 27.a4 b6 28.Nd4 Qd3 29.Nc6 Qe2 30.Nd4 Qd3 31.Nc6 Qe2?? 32.Nd4= Qd3 (32...cd4?! 33.Rc7 de3 34.fe3 Re3 35.Ra7=+) ½–½. Fournier,Frederic – Crafty level 1, Casual game (lightning), 2011.

3.a3 e5 4.b5 Nd4 5.Ne5 Bc5 (5...Qe7!? 6.Nf3 Nb5=) 6.e3+= Ne6 (6...Qe7 7.f4 (worse is 7.ed4 Bd4 8.c3 Be5=) 7...Nf5 8.Be2+=) 7.d4+/– Bd6 8.Nf3 Ng4 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com, 2013. (=1.Nf3 Nf6 2.b4 Nc6)

3.b5 d5?? 4.bc6+– bc6 5.e3 (5.Ba3 Qd7+–) 5...c5 (5...e6 6.d4+–) 6.Bb5 Bd7 7.Bd7 Nd7 8.c4! c6 (8...dc4 9.Na3 Decoy) 9.Qa4 Qc7 10.d3 (10.Nc3 e6+–) 10...e6 11.0-0 Nb6 (11...Bd6 12.Bb2 0-0 13.Na3+–) 12.Qc2 Bd6 13.Nbd2 0-0 14.Nb3 (14.a4 Rab8+–) 14...dc4 (14...Nd7 15.Bb2+–) 15.dc4 Nc4 (15...Rfd8+–) 16.Qc4 Rfc8 17.Ba3 1–0. Rosner,Dirk (1875) – Rueberg,Mathias, KO–021 VCC, 2002.

4.d3 c6 5.a4 a6 (5...d5 6.Bf4=) 6.c4 (6.e4 d5 7.e5 Nd7+=) 6...e6 7.Bb2 Bc5 8.g3 (8.e3 d5=) 8...d5+= 9.Nd4? (better is 9.Ba3!? dc4 10.Bc5+=) 9...dc4–+ 10.dc4? (better is 10.e3–+) 10...Nc4 11.Bc3 e5 12.Nb3 (12.e3 ed4 13.Bc4 dc3 14.Qd8 Kd8 15.bc6–+) 12…Bf2! (12...Bf2 13.Kf2 Qd1–+) 0–1. Michel,K – Lambrecht,S, Berlin–ch U16, 1999. (=1.Nf3 Nf6 2.b4 Nc6)

4.e3 c6 5.a4 cb5 6.ab5 b6 7.Ba3 d6 8.Bb4 Nb7 9.Be2 Bd7 10.0-0 g6 11.Nc3 Bg7 12.d4 0-0 13.e4 Ne8 14.h3 Nc7 15.Re1 Qe8 16.e5 de5 17.Ne5 Be5 18.de5 Be6 (18...Nc5!? 19.Bc5 bc5+–) 19.Qd4 Qd8 20.Qh4 Bf5 (20...Nc5 21.Bf3 Rb8 22.Ra7+–) 21.Bf3 (better 21.Be7 Qd2 22.Bf8 Rf8 23.Ne4 Be4 24.Qe4+–) 21...Bc8 (21...Qb8+–) 22.Red1 Qe8 (22...Nd6 23.Ba8 a5 24.ba6 Na8 25.ed6 ed6 26.Qf4+–) 23.Bc6 1–0. pcmvr – filipd (2175), net–chess.com, 2016.

4.e3 c6 5.a4 cb5 6.ab5 b6 7.Be2 Bb7 8.0-0 Qc7 9.Bb2 Ng4 10.g3 Rc8 11.Bc3 Bf3 (11...Nf6 12.Ba5 ba5 13.c3+=) 12.Bf3+/– Ne5 13.Bg2 f6 14.f4 Nf7 15.f5 h5 16.Rf4 Nd6 17.Qf1 (17.Na3 h4 18.g4 Rh6+/–) 17...Qc5 (17...Nac4 18.Ra4+/–) 18.Na3 Nf7?? (better is 18...h4 19.g4 Nac4+/–) 19.Ba5+– ba5 (19...Qc7 20.Rc4 Qd8 21.Bc3+–) 20.Rc4 1–0. De Vita,Cesare (2155) – Duric,Rajko (1695), Seefeld op, 2003. (=1.Nf3 Nf6 2.b4 Nc6)

4.a3 Nbd5 5.c4 Nf4 6.e3 Ne6 7.Nc3=.

4.a3 Nbd5 5.c4 Nf4 6.e3 Ng6 7.d4 e6 8.Nc3 Be7 9.e4 d6 10.Bg5 a6 11.a4 ab5 12.ab5 Bd7 13.Bd3 0-0 14.0-0 Ne8? (better 14...e5!?+=) 15.Be7+– Qe7?? (better 15...Ne7 16.Qd2 c6+–) 16.Ra8 Nf6 17.Rf8 Qf8 18.Ne2 (18.e5 Ng4+–) 18...b6 (18...e5 19.de5 Ne5 20.Ne5 de5 21.Qa1+–) 19.Ng3 (19.e5 Ng4+–) 19...Nf4 (19...e5+–) 20.Ne2 e5?? (20...Ng6 21.e5 Ng4+–) 21.de5+– de5 (21...Ne2 22.Qe2 de5 23.Ne5+–) 22.Nf4 ef4 23.Ne5 (better 23.e5 Ne8 24.Bh7 Kh7 25.Qd7 f5+–) 23...Be8 (23...Be6 24.Qd2 g5 25.Ra1+–) 24.Ng4 (24.Qd2 Nh5+–) 24...Ng4 (24...Nd7 25.h3 f6+–) 25.h3 (better 25.Qg4 Qd6 26.Rd1+–) 25...Ne5 26.f3 (better 26.Be2!? Qe7 27.Qd2+–) 26...Qc5 27.Kh1 h6 (27...Nc4 28.Qc1 Bb5 29.Qf4+–) 28.Be2 Bd7 (28...Nc4 29.Qc2 Nd6 30.Qc5 bc5 31.Rc1 Nb5 32.Bb5 Bb5 33.Rc5+–) 29.Qc2 (better 29.Qd5!? Qe3 30.Qe5 Qe2 31.Rg1 Qc4 32.Qf4 Qb5 33.Qc7+–) 29...Bb5+– 30.Rc1 (30.Rd1!? c6 31.Qc1 Bc4 32.Bc4 Nc4 33.Qf4+–) 30...Bd7+= 31.Ra1 Qc6 (31...Nc6 32.Qd2 Nd4 33.Bd1+=) 32.Qc3 f6 33.Bd1 (33.Qd2 Kh7+–) 33...Be6 (33...Qd6 34.Bb3 Kh7 35.Rd1+=) 34.Be2 (34.Qd2 Nc4 35.Qf4 b5+=) 34...Bc4 35.Bc4 Nc4 36.Qb3 b5 (36...Qc5 37.Rd1 b5 38.Rd5=) 37.Rc1 (37.Rb1!? Qd6 38.Qb5+=) 37...Qa6 38.Rd1 Kh7 39.Rd7 (39.Rb1 Qd6=) 39...c6=+ 40.Qb4?? (40.Kh2 c5=+) 40...Ne5 (better 40...Qa1 41.Kh2 Ne3 42.h4–+) 41.Qe7?? (better 41.Rc7=) 41...Nd7–+ 42.Qd7 b4 43.Qf5 Kh8 44.Qf4 (44.Qe6–+) 44...b3 (better 44...Qa1 45.Kh2 Qe5–+) 45.Qb8= Kh7 46.Qb3 Qc8 (46...c5 47.Qc2 Qf1 48.Kh2=) 47.Qc4 c5 48.f4 Qc7 49.g3 Qc6 50.Qd5 (50.Kg2 Qb7=) 50...Qb6 (50...Qd5 51.ed5 Kg8 52.Kg2=+) 51.Qf5 Kh8 52.e5 fe5 53.Qe5 c4 54.Qc3?? (54.Qe8 Kh7 55.Qe4 Qg6 56.Qc4 Qg3 57.Qe4 Qg6=) 54...Qc6?? (54...Qb3 55.Qe5 Qf3 (55...Qg3?! 56.Qe8 Kh7 57.Qe4 Qg6 58.Qc4=) 56.Kh2 c3 57.Qb8 Kh7 58.Qb1 g6–+) 55.Kg1= Qc5 56.Kg2 Qd5 57.Kf2 Qc5 58.Kg2 Qc6 59.Kh2 (59.Kg1 Qb5 60.Kf2 Qb3=) 59...Qe4 60.h4 Qe2 (60...Qd3 61.Qe5=+) 61.Kh3 (61.Kg1 Kg8=) 61...Qf1 (better 61...Kh7 62.Qb4 Qf1 63.Kh2 Qd3–/+) 62.Kg4?? (62.Kh2=+) 62...Qe2 63.Kf5?? (63.Kh3 Kh7 64.f5 h5–/+) 63...Qh5 (better 63...Qd3 64.Qd3 cd3–+) 64.Ke4= Qg6 (64...Qc5 65.h5=) 65.Kf3 (65.Kd4!?+=) 65...Qc6= 66.Kf2 Qc5 67.Kg2 Qd5 68.Kh2 (68.Kg1 Kg8=) 68...Kh7 (68...Qd3 69.Qe5=+) 69.Qc2 (69.Kg1 Kg6=) 69...Kh8 70.Qe2?? (better 70.Qc3=) 70...c3–+ 71.Qe8 Kh7 72.Qc8 Qd2 73.Kh3 c2 (73...Qd3 74.h5 c2 75.Qc6–+) 74.Qf5?? (better 74.Qc4=) 74...Kg8–+ 75.Qc8 Kh7 (75...Kf7 76.Qf5 Ke8 77.Qe6 Kd8 78.Qb6 Kd7 79.Qb5 Kc7 80.Qc5 Kb7 81.Qb5 Ka7 82.Qc5 Ka6 83.Qc6 Ka5 84.Qc5 Ka4 85.Qc4 Ka3 86.Qa6 Kb3 87.Qb7 Kc4 88.Qa6 Kd4 89.Qa1 Kd3 90.Qf1 Kc3 91.Qa1 Kb3 92.Qg7 c1Q 93.Qb7 Kc3 94.Qg7 Kd3 95.Qg6 Ke3 96.Qb6 Qd4 97.Qe6 Kf2 98.Qa2 Qcd2 99.Qe6 Qd7 100.f5 Qe6 101.fe6 Kf3 102.h5 Qf2 103.e7 Qg3) 76.Qf5= g6 77.Qf7 Kh8 78.Qf8 Kh7 79.Qf7 Kh8 80.Qf8 Kh7 81.Qf7 Kh8 82.Qf8 Kh7 ½–½. 2007michas – efc8, gameknot.com, 2017.

4.a3 Nbd5 5.c4 Nf4 6.e3 N4h5 7.Be2 c6 8.Nc3 (8.g4 Ng4 9.Ng5 Nhf6 10.Bg4 h6+/–) 8...a6 (8...cb5 9.Nb5 d6 10.Bb2+/–) 9.0-0 ab5 10.cb5 e6 11.Bb2 g5 (better is 11...d6!?+/–) 12.Ng5+– Rg8 (12...Ng7 13.Nce4 Ne4 14.Ne4+–) 13.Nf7 (13.Bh5?! Rg5 14.Be2 d5+/–) 13...Kf7 14.Bh5 Nh5 (14...Ke7+–) 15.Qh5 Rg6 16.Qh7 Bg7 17.Ne4 d5 18.Ng3 (better is 18.f3!? cb5 19.Rac1 Kf8 20.Qg6 Bb2+–) 18...cb5 19.Rfc1 e5 (19...Bd7+–) 20.Be5 Qe7 (20...Bd7 21.d4+–) 21.Bg7 (better is 21.Rc7!? Qc7 22.Bc7 Rh6+–) 21...Rg7 22.Qh5 Rg6 (22...Kg8 23.Qd5 Be6 24.Qe5+–) 23.Qd5 (23.Rc8 Rc8 24.Qf5 Qf6 25.Qd7 Qe7 26.Qc8 Rc6 27.Qf5 Ke8 28.Qd5 Rc5 29.Qg8 Kd7+–) 23...Re6 (23...Be6 24.Qb5 Kg8 25.d4+–) 24.Ne4 (better is 24.Qh5 Rg6 25.Rc8 Rc8 26.Qf5 Rf6 27.Qc8 Rc6 28.Qf5 Ke8 29.Qb5 Kf8+–) 24...Ra3 (24...Kf8 25.d3 Re5+–) 25.Ra3 Qa3 26.Rc7 (26.Qf5 Ke8 27.Qh5 Kd7 28.Qd5 Qd6 29.Nd6 Rd6 30.Qf7 Kd8 31.Qf8 Kd7 32.Qc8 Ke7 33.Rc7 Kf6 34.Qf8 Kg5 35.Rg7 Rg6 36.Qf4 Kh5 37.Rh7 Rh6 38.Rh6) 26...Kg6 27.Qg5 1–0. Gimeno Royo,Jose Andres – Fuentemilla,Alvaro, Zaragoza Delicias op 6th, 2005. (=1.Nf3 Nf6 2.b4 Nc6)

4.c3 Nbd5 5.Ba3 (5.e3 Nb6=) 5...d6 (better 5...a6 6.c4 Nb6=) 6.e4? (6.c4 Nb6 7.e3 g6=) 6...Nb6 (better 6...Ne4!? 7.Qb3 Ndf6–/+) 7.e5 (7.Qc2 g6=) 7...de5=+ 8.Ne5 Bf5 (8...g6 9.d4=+) 9.d4= Qd5 10.Nd2 Na4?? (10...Nfd7 11.Nec4 Nc4 (11...Qb5?? 12.Nd6 ed6 13.Bb5+–) 12.Nc4 0-0-0+= (12...Qb5 13.Nd6 ed6 14.Bb5+–)) 11.Qa4+– Ne4 (11...Nd7 12.Bc4 Qg2 13.Bf7 Kd8+–) 12.Bc4 Nc3 13.Bd5 Na4 14.Bb7 (better 14.Bf7!? Kd8 15.Bb3 Nc3 16.Nf7 Ke8 17.Nh8 Nb5+–) 14...Rb8 (14...Rd8 15.Bc6 Bd7 16.Nd7 Rd7+–) 15.Bc6 (15.Bc6 Kd8 16.Nf7 Kc8 17.Nh8+–) 1–0. yodamo – Chipe, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 Nc6 3.b5 Nb4)

4.Bb2 a6 5.e3 ab5 6.Bb5 c6 7.Be2 b5 8.0-0 Bb7 9.c4 b4 10.a3 ba3 11.Na3 e6 12.d4 g6 13.c5 Bg7 14.Nc4 Ra1 15.Nd6 Ke7 16.Qa1 Qc7 17.Qa7 (Unregistered player Black disconnected and forfeits). guest299 – guest695, ICC, 2003.

4.Nc3 d5 5.e3+=.

4.Nc3 e6 5.e4 Bb4 (5...a6!?+=) 6.e5+– Ng4 (6...Nh5 7.h4 f6 8.Nd4+=) 7.Rb1 (7.h3 Nh6+–) 7...Ba5 (7...Bc3!? 8.dc3 d6+–) 8.h3+– Nh6 9.Bd3 d6 (9...a6 10.0-0+–) 10.Qe2 (10.Ba3!? de5 11.Ne5 Nd7 12.Nd7 Bc3 13.dc3 Bd7+–) 10...Nd7+– 11.Ba3 Qe7 (11...Nc5!?+–) 12.Ne4+– Nc5 13.ed6 cd6 14.Nc5 dc5 15.Qe5 f6 16.Qh5 Qf7 17.Qc5 Bd7 (17...e5 18.Bc4 Qc7 19.Qd5+–) 18.Be4 Bb6 19.Qb4 f5 (19...Nf5+–) 20.Bb7 Rb8 (20...Rd8 21.Ne5 Qf6 22.0-0+–) 21.Ne5 Qf8 (21...Rb7 22.Nf7 Kf7 23.Qe7 Kg6 24.Bb2+–) 22.Qc3 Qf6 (22...Rb7 23.Bf8 Kf8 24.Qa3 Ke8 25.Nc6+–) 23.Bc6 Rd8 24.0-0 (24.Nd7 Qc3 25.dc3 Kf7+–) 24...Bc7 (24...Nf7 25.Nd7 Rd7 26.Bd7 Kd7 27.Qc6 Kd8 28.Rb3+–) 25.d4 (better 25.Nd7 Qc3 26.dc3 Kf7+–) 25...Nf7 (25...Be5 26.de5 Qg5+–) 26.Nd7 Rd7 27.Bd7 Kd7 28.Qc6 Kc8 (28...Kd8 29.Qa8 Kd7 30.Qa7 Rc8+–) 29.b6 ab6 30.Rb6 Nd8 31.Qa8 Kd7 32.Qa4 Kc8 33.Qa6 Kd7 34.Qb5 Kc8 35.Ra6 Bb8 (35...Bb6 36.Rb6 Qd4 37.Qa6 Kc7 38.Qa7 Nb7 39.Qb7 Kd8 40.Rc6 Qf2 41.Kf2 Ke8 42.Rc8) 36.Ra8 Kc7 (36...e5 37.Rb8 Kc7 38.Rb1 Qd6 39.Bd6 Kd6 40.Qe5 Kd7 41.R8b7 Nb7 42.Rb7 Kc6 43.Ra7 Rb8 44.Qc5) 37.Qb8 Kc6 (37...Kd7 38.Ra7 Ke8 39.Qb5 Nc6 40.Qc6 Kd8 41.Qd7) 38.Qd6 Kb5 (38...Kb7 39.Rb1 Ka8 40.Qa6) 39.Qc5 1–0. michaelbuss (2855) – DavidLuscomb (2095), ChessWorld.net, 2009.

(--> 1.b4 d5 2.Nf3 Nf6).

3.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3).

(--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5).

4.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3).

(--> 1.b4 d5 2.Bb2 Nd7 3.Nf3 Ngf6).

4.e3 e6 5.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3).

(--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6).

4.a3 c5 5.bc5 Bc5 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3).

4.a3 c5 5.b5 Bd6 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.b5 Bd6 6.Nf3).

4.a3 e6 5.e3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.a3).

4.e3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3).

4.e3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6).

4.e3 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5).

4.e3 Bg7 5.c4 c6 6.Be2 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.Be2 d5).

4.e3 Bg7 5.d4 c6 6.c4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4 d5).

3.d4 (--> 1.b4 Nf6 2.d4 d5 3.Nf3).

3.d4 e6 4.a3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.d4).

3.e3 (--> 1.b4 d5 2.Nf3 Nf6 3.e3).

3.e3 e6 4.a3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.e3).

3.e3 e6 4.a3 a5 5.b5 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.e3 a5 5.b5).

3.e3 Bf5 4.Bb2 e6 5.a3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.a3).

3.e3 g6 4.Be2 Bg7 5.d3 0-0 6.Bb2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.d3 0-0 6.Be2).

3.Bb2 Nbd7 4.c4 e5 5.Qc2 b6 6.Nc3 Bb7 7.e4 a5 8.b5 Nc5 9.d3 a4 10.Ba3 Nfd7 11.g3 g6 12.Bg2 Bg7 13.0-0 0-0 14.Rad1 Re8 15.Ne1 Ne6 16.Ne2 Nf6 17.h3 g5 18.Bc1 Kh8 19.Nf3 h6 20.h4 g4 21.Nh2 c6 22.bc6 Bc6 23.f3 gf3 24.Rf3 b5 25.cb5 Bb5 26.Rdf1 Nc5 27.Bh6 Bh6 28.Rf6 Be3 29.Kh1 Bd3 30.Qd1 Re6 31.Re6 fe6 32.Ng4 Bf4 33.gf4 Qh4 34.Nh2 Rg8 35.Qd2 Be4 36.Be4 Ne4 37.Qe3 Nf6 38.Qf2 Qh3 39.Qf3 Qh4 40.Rg1 e4 41.Qc3 Rg1 42.Kg1 Kh7 43.Kg2 e5 44.Qc7 Kg6 45.Qd6 e3 46.fe5 Qf2 47.Kh3 Qf5 48.Kg2 Qf2 49.Kh1 Qe1 50.Ng1 Qf2 51.Nhf3 e2 52.Qf6 Kh7 53.Ng5 1–0. Rodriguez – Dib Ashur, Salta 1993.

3.Nc3 c6 4.e4 Bg4 5.h3 Bh5 6.Bb2 Nbd7 7.g4 Bg6 8.d3 e5 9.Bg2 Be7 10.0-0 Qc7 11.Qe2 a6 12.Rfe1 0-0 13.a4 d5 14.ed5 cd5 15.Na2 e4 16.Nh4 Rae8 17.Ng6 fg6 18.de4 Bd6 19.Qd3 de4 20.Qb3 Kh8 21.g5 (better is 21.Nc3+=) 21...Nh5–/+ 22.Be4? (22.Bd4 Bh2 23.Kh1 Be5–/+) 22...Bh2 (better is 22...Nc5 23.bc5 Bc5–+) 23.Kg2–/+ Rf2?? (better is 23...Be5 24.Be5 Re5–+) 24.Kf2+– Bg3 25.Kg2?? (25.Kg1 Qb6 26.Qe3 Be1 A) worse is 27.Re1 Re4 28.Qb6 Re1 (28...Nb6?? 29.Re4 Kg8 30.Re8 Kf7 31.Rb8 Na4 32.Rb7 Ke6 33.Bg7+–) 29.Kf2 Nb6 30.Ke1 Na4–/+; B) 27.Bd4+/–) 25...Qf4+/– 26.Qe3 Qh4 27.Rad1 Nf4 28.Kf3 Qh3 29.Bg7! Kg7 30.Rd7! Qd7 31.Kg3 Nh5 32.Kh2 Qd6 33.Kg2 (33.Kg1 Re5+–) 33...Re5 34.Qc3 (34.Kf2 Nf4 35.Qc3+– (35.Qf4?! Rf5 36.Qf3 Qh2 37.Ke3 Rf3 38.Kf3 Qh5 39.Ke3 Qg5 40.Kd3 Qg3 41.Re3 Qd6 42.Kc3 h5=)) 34...Qe7?? (34...Kg8 35.Kf2 Rg5 36.Qc8 Kg7+/–) 35.Bf3 Qg5 36.Kf1 Kf6 37.Re5 Qe5 38.Bb7 Qc3 (38...Ng3 39.Kf2 Nf5 40.Qe5 Ke5 41.Ba6+–) 39.Nc3 Ke5 40.a5 Nf6 (40...Kd6+–) 41.b5 ab5 42.a6 Nd7 43.a7 Nb6 44.Nd5! Nd5 45.Bd5 Kd5 46.a8Q (46.a8Q Kd6 47.Qf8 Ke5 48.Qe7 Kf4 49.Kf2+–) 1–0. capablancaven (1700) – checkmate57 (1695), gameknot.com, 2011.

3.c4 a5 4.b5= Nbd7 (4...e5 5.Nc3 Be7 6.e4 Qd7 7.Be2 0-0+=) 5.d4 (5.Nc3 e5 6.e4 Nc5 7.d3 Be7=) 5...g6 (5...e5 6.e3= e4 7.Nfd2 d5=) 6.Bb2 (6.e3 e5 7.Bb2 Bg7=) 6...Bg7 7.Qc2 (7.e3 e5=) 7...0-0 (7...c5=) 8.e3 Re8 9.Be2 e5 10.de5 de5 (10...Ne5 11.Ne5 de5 12.Nc3=) 11.e4+= Nc5 12.Nbd2 Nh5 13.Nb3 Nb3 14.ab3 Nf4 15.0-0 b6 16.Rfd1 Qe7 17.Bc3 Bb7 18.Bf1 Qc5 (18...f5 19.Nd2=) 19.g3 (19.Bb2 Qe7=) 19...Ne6 20.Bg2 Nd4 21.Qb2 (21.Nd4 ed4 22.e5 dc3 23.Bb7 Rad8+=) 21...Rad8 (21...Red8 22.Ne1+=) 22.Ne1= Qe7 23.b4 ab4 24.Bb4 Qe6 25.Rdc1 Bh6 26.Rc3 c5 27.bc6 Nc6 28.Ba3 Nd4 29.Nd3 Rc8 30.c5 (30.Kh1 Rc4 31.Rc4 Qc4 32.Ne5 Re5 33.Qb6 Bc6–+) 30...Qg4 (better is 30...Ba6!?–/+) 31.Re1= b5 32.Nb4 Qe6 33.Nd5 Bf8 (33...Bc6 34.Bb4=) 34.Rec1 (34.Rd1 Rc6=) 34...Bc6 35.Bb4 h5 (35...f5 36.Re1+=) 36.h4 (36.Ba5 Bh6 37.Ra1 Rf8+=) 36...Kg7 (36...f5 37.Re1=) 37.Kh2 Red8 (37...f5 38.ef5 Nf5 39.Nb6=) 38.Re3 Kh8 39.Ra3 f5 40.Nb6 Rc7 41.Nd5 Rf7 42.Ba5 Rdd7 43.Nb6 Ra7 44.ef5 Qf5 45.Bc6 Nc6 46.Be1 Ra3 47.Qa3 g5 48.hg5+= Nd4 49.g6 Qg6–/+ 50.Qb2?? h4 51.f4 hg3 52.Bg3 Rh7 53.Kg2 Qe4 (53...Qe4 54.Kf2 Qf3 55.Ke1 Qe3 56.Kf1 Rh1 57.Kg2 Qf3#) 0–1. Majul Martinez,Isolina – Zagorskaya,Tatiana, 32nd Chess Olympiad Yerevan, 1996. (=1.Nf3 Nf6 2.b4 d6)

3.c4 Nbd7 4.d4 g6 5.Nc3 Bg7 6.e3 0-0 7.Bd3 Re8 8.0-0 c6 (8...e5 9.de5 Ng4 10.e6 Bc3 11.ed7 Bd7 12.Rb1=) 9.Bb2 (9.e4 c5+=) 9...Qc7 (9...e5 10.de5 Ne5 11.Ne5 de5 12.e4=) 10.Re1 e5 11.Qc2 ed4 (11...a5 12.a3+=) 12.ed4 Re1 13.Re1 Nf8 14.h3 (14.Ne4 Ne4 15.Be4 Be6+=) 14...Bd7 (14...Be6 15.Qa4+=) 15.a3 (15.Re7 Qd8 16.Re3 d5+=) 15...Re8 (15...d5 16.cd5 cd5 17.Ne5+=) 16.Re8 Be8 17.d5 Bd7 18.dc6 (18.Ne4 Ne4 19.Bg7 Nf2+–) 18...bc6 19.Nd4 White intends b5 (19.Ne4 Ne4 20.Be4 Bb2 21.Qb2 a5+=) 19...Ne6 20.Ne6 Be6 21.Ne2 d5 22.c5 a5 23.b5 (23.Bd4 ab4 24.ab4 Qe7+=) 23...cb5= 24.Bb5 Ne4 (24...Bf5 25.Qc1=) 25.Bg7+= Kg7 26.Qb2 Kg8 27.c6 Nd6 28.a4 Nc4 (28...Nf5 29.Qd2+=) 29.Qc3 (29.Qd4!?+–) 29...Nd6 30.Nd4 Ne4 31.Qe1 Qf4? (31...Nc5 A) worse 32.Ne6 Ne6 (32...fe6? 33.Qe3 Qd6 34.Qc3+–) 33.Qe3 Kg7+=; B) 32.Qc1 Ne4 33.Bd3+–) 32.f3 (32.Ne6 fe6 33.f3+– (33.Qa5?! Qf2 34.Kh1 Qf4=)) 32...Qd2?? (better 32...Ng5 33.Ne6 Ne6 34.Qa5 Qc1 35.Kf2 Qb2 36.Kf1 Nf4+=) 33.Qd2+– Nd2 34.Ne6 fe6 35.c7 1–0. OnlyPolishOpening (1950) – Iron_Master (2025), lichess.org, 2020.

3.c4 e6 4.e3 (4.d4 Be7=) 4...d5 (4...Nc6 5.b5 Ne5 6.Ne5 de5 7.Bb2=) 5.a3 d4 (5...a5!? 6.Qa4 c6=) 6.Nd4+= Nc6 (better 6...a5!? 7.Qa4 Bd7+–) 7.Nc6+– bc6 8.d4 a5 9.Bb2 (9.Qa4 Bd7 10.c5 ab4 11.Qb4 Nd5+–) 9...ab4 10.ab4 (10.c5 ba3 11.Ra3 Ra3 12.Na3 Qd5+–) 10...Ra1 (10...Bb4 11.Nc3 Ra1 12.Qa1=) 11.Ba1+= Bb4 12.Bc3 Bc3 13.Nc3 0-0 14.Bd3 (14.c5 e5 15.de5 Qd1 16.Kd1 Nd7+=) 14...Bb7 (14...c5 15.dc5 Bb7 16.0-0+=) 15.Qb3 (15.c5 Qa8+–) 15...Qa8+= 16.0-0 (16.c5 Ba6 17.Bb1 Re8+=) 16...c5= 17.f3 cd4 18.ed4 Rd8 19.Ne4 (better 19.Rb1!? Bc6 20.Ne2=) 19...Ne4 (19...Be4 20.fe4 Rd4 21.e5–+) 20.Be4 Be4 21.fe4 Qe4 22.Rb1? (better 22.Rd1–/+) 22...Qd4–+ 23.Kh1 h6 24.h3 (24.Qa4 e5–+) 24...e5 (24...Qe4 25.Qb4–+) 25.Rd1?? (25.Re1–+) 25…Qd1 (25...Qd1 26.Qd1 Rd1 27.Kh2 e4 28.g4 e3 29.Kg3 e2 30.g5 e1Q 31.Kf3 Rd3 32.Kf4 Qe3 33.Kf5 g6 34.Kf6 Qg5) 0–1. OnlyPolishOpening (1775) – Eric_Saldana, lichess.org, 2020.

3.d3 Na6 4.a3=.

3.d3 e5 4.e4 (4.Nc3 Be7=) 4...a5 (4...d5 5.ed5 Bb4 6.c3–/+) 5.b5= Be7 (5...d5 6.ed5 Qd5 7.Be2 Bb4 8.c3=) 6.Be2 (6.Nc3 0-0=) 6...Nbd7 7.0-0 (7.Nc3 Nc5=) 7...Nc5 (7...0-0 8.Nc3=) 8.Nbd2 (8.Nc3 0-0=) 8...a4 (8...0-0 9.Nb3 Ne6 10.a4=) 9.h3 (9.Ba3 b6=) 9...Bd7 (9...0-0 10.c3=) 10.c4 (10.Ba3 Ne6 11.Rb1 0-0=) 10...h6 (10...0-0 11.Nb1=) 11.Re1 (11.Nb1 0-0=) 11...0-0 12.Bf1 (12.Qc2 Nh7=) 12...Nh7=+ 13.Ba3 Ne6 14.g3 (14.Bb2=+) 14...f5 (14...h5!?=+) 15.ef5+= Rf5 16.Bg2 Qf8 17.Rf1 (17.Ne4 Nhg5 18.Nh4 Rf7+=) 17...c6 (17...Rf7 18.Ne4=) 18.Rb1 (18.bc6 bc6 19.Ne4 d5 20.Be7 Qe7+–) 18...Qf7 (18...Nhg5 19.Ng5 Ng5 20.bc6 Bc6 21.h4+=) 19.Ne4+= c5 20.Nh4 (20.h4 Bc8+=) 20...Rh5= 21.Bf3 (21.Qf3 A) 21...Bh4 22.Qf7 (22.gh4 Nf4 23.Bc1 Nh3 24.Kh2 Nf4–/+) 22...Kf7 23.Nd6 Kg8 24.gh4+–; B) 21...Qe8=) 21...Rh4 22.gh4 Nf4 23.Bg4 (23.Kh2 Bh3 24.Rg1 Bc8=) 23...Nh3 (23...Qg6 24.Kh1 h5–+) 24.Kh2= Bg4 25.Qg4 Nf4 26.Rbd1 (26.Bc1 Nd3 27.Bh6 Nf6+=) 26...h5 (26...Nf6 27.Nf6 Bf6 28.Bc1=+) 27.Qg3 Ne2 (27...Nf8 28.Bc1=) 28.Qe3= Nd4 29.f4 Nf6 30.Nf6 Bf6 31.fe5 Be5 32.Qe5 de5 33.Rf7 Kf7 34.Bc5 Rd8 35.Kg3 (35.Kg2 Rd7=) 35...Ne2 (35...Nf5 36.Kf3=) 36.Kf2= Nc3 37.Re1 Rd3 (worse 37...Na2 38.Ra1 Nc3 39.Ke3+–) 38.Re5 Kf6 39.Re7 (39.Rh5 Na2 40.Rg5 Nc3–/+) 39...b6 40.Re3 Ne4 (40...Rd2!? 41.Ke1 Rd1 42.Kf2 bc5 (42...Na2 43.Bb6 Rc1 44.Bd4 Kf7 45.c5+–) 43.Rf3 Ke5 44.Rc3 Rd2 45.Ke3 Ra2=+) 41.Re4= bc5 42.Re8 Ra3 (42...Rd2 43.Re2 Rd1 44.Ke3=) 43.Rc8 (43.Re2 Rh3=) 43...Ra2=+ 44.Ke3 (44.Kf3 a3 45.Rc5 Ra1 46.Rc6 Ke5=) 44...a3 45.Rc5? (45.Rc6 Ke7 46.Rc7 (46.Rc5?? Ra1–+) 46...Kd6 47.Rc6 Kd7 48.Rg6=+) 45...Rb2?? (45...Ra1 46.Rc6 Kf5–+) 46.Kd4= (46.Rh5 a2 47.Kd4 a1Q 48.Kc5 Rc2 49.Kc6 Rc4 50.Rc5 Qa8 51.Kb6 Qb8 52.Kc6 Qc8 53.Kb6 Qc5 54.Ka6 Ra4 55.Kb7 Ra7 56.Kb8 Qc7) 46...a2 (46...g5 47.hg5 (47.Rg5?? a2–+) 47...Kg6 48.Rc6 Kg5 49.Ra6=) 47.Rc6 Kf5 (47...Ke7 48.Ra6=) 48.Ra6+= g5 (48...Rh2 49.b6 Rb2 50.Kc5+–) 49.hg5 Kg5 (49...h4 50.Kc3 Rb1 51.Ra2 Kg5 52.Rb2 Rb2 53.Kb2+–) 50.Kc3 Rf2?? (better 50...Rb1 51.Ra2 h4+=) 51.b6+– Rf3 52.Kb4 Rf2 53.Kb3 h4 (53...Rf8 54.c5 Rf3 55.Ka2 Rf2 56.Kb3 Rf3 57.Kc4 Rf4 58.Kd5 Rf5 59.Kd6 Rf6 60.Kd7 Rf7 61.Ke8 Rf6+–) 54.b7 Rf8 55.c5 Rb8 (55...Rf3 56.Ka2 Rf2 57.Kb3 Rf3 58.Kc4 Rf4 59.Kd3+–) 56.c6 Kf5 57.Kc4 Ke5 1–0. Uddin,Md Saif (2075) – Mohammad,Javed (2175), Saif Powertec Open, 2017. (=1.Nf3 Nf6 2.b4 d6)

3.d4 b6 4.c4 c5 (4...Bf5 5.Nc3 c5 6.bc5 bc5 7.dc5 Qa5 8.Qa4 Qa4 9.Na4 Bc2=) 5.bc5 (5.a3 cd4 6.Nd4 Bb7 7.Nc3 e5 8.Nf5 a5 9.Nb5 d5=) 5...bc5 (5...dc5 6.e3 e6 7.Bd3 Nc6 8.Bb2 cd4 9.ed4 Bd6=) 6.e3 cd4 (6...Nc6 7.Nc3= (7.Be2 Bf5 8.0-0 Rb8 9.Nc3 e6=) 7...Bf5 8.Be2 Rb8 9.0-0 e6=) 7.ed4+= Ba6 (7...Bg4 8.Be2 e6 9.Nc3 Be7+=) 8.Nc3 g6 (8...Nbd7 9.Rb1 d5+=) 9.Rb1 Bg7 (9...Qd7!?+/–; 9...Bc8+/–) 10.Qa4 Qd7 11.Rb8! Rb8 12.Qa6 0-0 13.Bd3 Ng4 (13...h6 14.0-0+–) 14.0-0 Rb6 15.Qa4 Qa4 16.Na4 Rb7 17.Re1 Rfb8 18.Ba3 (18.a3 Rc7+–) 18...h5 (18...Rc7 19.h3 Nf6 20.c5 dc5 21.Nc5+–) 19.c5 dc5 (19...Rd7 20.c6 Rc7 21.Nc3+–) 20.Nc5 (20.Bc5?! Bf8+–; 20.dc5?! Rc7+–) 20...Rc7 21.Na6 Rc3 22.Nb8 Ra3 23.Bb1 Nf6 (23...e6 24.Rc1 Bh6 25.Rc8 Kg7 26.Nc6+–) 24.Re7 Ne4 (24...Rc3 25.Kf1 Bh6+–) 25.Re4 Ra4 (25...Rc3 26.Re1+–) 26.Re8 Kh7 27.Ng5 Kh6 28.Nf7 Kh7 29.Ng5 Kh6 30.Re6 Kg5 31.h4! (31.h4 Kg4 32.Rg6 Kf4 33.Re6 Ra2 34.g3 Kf3 35.Ba2 Kg4 36.Kg2 Kf5 37.d5 a5 38.Bb1 Kg4 39.f3#) 1–0. Rosner,Dirk – Albrecht,Helmut, Tiger SC, 2000.

3.d4 d5 A) 4.a3 Bf5 (4...a5 5.b5 Bf5 6.c4 dc4 7.e3 e6=; 4...e6 5.Bf4 a5 6.b5 Be7 7.e3 Nh5=) 5.Bf4 Nh5 6.Bd2 e6 7.Ne5 Nf6+=; B) 4.Bf4 e6 5.a3 a5 6.b5 Be7 7.e3 Nh5=.

3.e3 e5 4.d3 Nc6 (4...d5 5.a3=+) 5.b5= Ne7 6.h3 Bd7 (6...Ng6 7.c4=+) 7.a4 (7.Nc3 Ng6=+) 7...c6 8.c4 d5 (8...Ng6 9.Be2=) 9.Nbd2 (9.Ne5!? dc4 10.Nd7 Nd7 11.dc4+–) 9...e4 10.de4 de4 11.Nd4 (11.Ng5 Bf5 12.Qc2 Nc8=) 11...g6 (11...Nf5!?=) 12.Bb2 Bg7 13.Qc2 Rc8 14.Ne4 (better 14.g4 g5 15.h4+= (worse 15.Ne4 Ne4 16.Qe4 c5=+)) 14...c5?? (better 14...Ne4 15.Qe4 c5=+) 15.Nf3 (15.Nd6!? Kf8 16.Nc8 Bc8+–) 15...Nf5 (15...Bf5 16.Bd3 (16.Nf6?! Bf6 17.Qc1 Qa5 18.Nd2 Bb2 19.Qb2 0-0+–) 16...Rg8 17.Nf6 Bf6 18.Bf5 Nf5 19.0-0+–) 16.g4 (16.0-0-0 Ne4 17.Qe4 Qe7 18.Qb7 Bb2 19.Kb2 Nd6 20.Qa7 Ne4 21.Qd7 Qd7 22.Rd7 Kd7+–) 16...Ne4 17.Qe4 (17.gf5?! Bb2 18.Qb2 Qa5 19.Nd2 Qd2 20.Qd2 Nd2 21.Kd2 Bf5=) 17...Qe7 18.Qe7 Ke7 19.Bg7 (19.gf5?! Bb2 20.Rd1 Bf5=) 19...Ng7 20.Ne5 (20.a5!? Rhd8+–) 20...Be6+– 21.Bg2 (21.0-0-0+–) 21...Rc7 (21...f6!? 22.Nf3 Bc4+–) 22.Rc1 (22.a5 f6 23.b6 ab6 24.ab6 Rcc8 25.Bb7 fe5 26.Bc8 Bc8 27.Ra7 Bd7+–) 22...f6 23.Nd3 Rd8 24.Nf4 Bf7 25.Nd5 Bd5 26.cd5 b6 (26...Ne8 27.e4+–) 27.e4+– h5 (27...Kd6 28.Rc4+–) 28.f4 Kf7 (28...Rcd7 29.Rf1+–) 29.0-0 (29.e5 Re7 30.0-0 hg4+–) 29...Re7 (29...hg4 30.hg4 a6 31.ba6+–) 30.a5 (30.e5 hg4 31.d6 Ree8 32.Bd5 Ne6 33.hg4 Kg7+–) 30...Ne8 (30...Ke8 31.Rfe1+–) 31.e5 fe5 32.fe5 Kg7 33.e6 (33.ab6!? ab6 34.Rfe1 Rf7+–) 33...Nc7 (33...hg4 34.hg4 Nd6 35.Rb1+–) 34.ab6 ab6 35.Rcd1 (better 35.gh5!? gh5 36.Rf5 Nb5 37.Rh5+–) 35...Nb5+– 36.Rd3 (36.gh5 gh5 37.Rb1 Nc3+–) 36...Nd4 (36...hg4 37.Rg3=) 37.Rb1 (37.gh5!? g5 38.Kh2+–) 37...hg4= 38.hg4 (worse 38.Rb6 gh3 39.Rh3 Ne2 40.Kf2 Nf4–/+) 38...b5 39.Kf2 Ne6 40.Re3 (better 40.Rb5 Nf4 41.Rd2=) 40...Rf7–/+ 41.Kg3 Nd4 42.Rc1 c4 43.Rd1 Nc2 (43...Nb3 44.d6 Rfd7 45.Re7 Re7 46.de7–+) 44.Re6 White prepares the advance d6 44...Rdd7 (better 44...b4–/+) 45.d6 Rf6 46.Rf6 Kf6 47.Bc6 Rd8 48.Bb5 c3 49.Ba4 Ne3 50.Rd3 c2 ½–½. Lee,Wing Kin – Lam,Ka Yan, ch–HKG, 2018.

3.g3 c6 4.Bg2 (4.c4 Qb6=) 4...e5 5.0-0 Be7 6.c4 Be6 7.d3 (7.Nc3 Qc8=) 7...Qc8 (7...h6 8.Be3=) 8.Re1 (8.Ng5 Bg4=) 8...h6 9.Nc3 Nbd7 10.Bb2 Qc7 11.a4 a6 (11...a5 12.b5=) 12.Qd2 (12.a5 Rd8=) 12...0-0 (12...a5 13.Ba3=) 13.Rec1 (13.a5 Rab8=) 13...Nh7 (13...a5!? 14.b5 Nc5=) 14.Nd5+= Qd8 15.Ne7 Qe7 16.c5 (16.a5 Rad8=) 16...Bg4 (16...Nhf6 17.Rab1=) 17.cd6 Qe6 (17...Qd6 18.b5+=) 18.Qe3 (18.b5 Qd6 19.bc6 bc6+/–) 18...Rfe8 (18...Bf3 19.Bf3 Nhf6 20.Ba3+/–) 19.d4 Bf3 20.ef3 Qd6 21.de5 Qb4? (21...Ne5!? 22.Re1 Nc4 23.Qe8 Re8 24.Re8 Nf8+=) 22.Bc3 (22.Ba3 Qb6 23.Qb6 Nb6+–) 22...Qe7 (22...Qb6 23.Qe1+/–) 23.Rab1 (23.f4 Rab8+–) 23...b6 (better is 23...Ne5!? 24.f4 Ng6+/–) 24.f4+– Rac8 25.Bh3 (25.Bb2 Qe6+/–) 25...c5 (better is 25...Nhf8!?+/–) 26.Qd3+– Nhf8 27.Qa6 Ne6 28.Rd1 Red8 29.Rd6 Rb8 30.Rbd1 Ndf8 31.Qc4 Nd4+/– 32.Rd8 Rd8 33.Bd4 Ne6 34.Be6 Qe6 35.Qe6 fe6 36.Kf1 Kf7 37.Ke2 cd4 38.Rb1 d3 39.Kd2 Ke7? 40.g4?? Ra8 41.Kd3 Ra4+= 42.Rb6 Ra3 43.Ke4+/– Ra4 44.Kf3 g5 45.Rb7 Kf8 46.fg5 Ra3? 47.Kf4 Ra4+/– 48.Kg3 hg5 49.h4 Ra3 50.f3 gh4 51.Kf4 Kg8 52.Rb2 Kf7 53.Rh2 Ra4 54.Kg5 Ra5 55.f4 Ra8 56.Kh4 Ra4? 57.Kg5+– 1–0. Breustedt,Werner (2240) – Tscheppe,Karl Heinz (2140), Bad Bevensen Seniors op 4th, 2001. (=1.Nf3 Nf6 2.b4 d6)

3.g3 e5 4.Bg2 e4 5.Nd4 d5 6.c3 Be7 7.0-0 Nc6 8.Nc6 bc6 9.d3 Bf5 10.Na3 0-0 11.Nc2 c5 12.bc5 ed3 13.ed3 Bc5 14.Ne3 Be6 15.d4 Be7 16.f4 c6 17.f5 Bd7 18.Ng4 Ng4 19.Qg4 Re8 20.Qf3 Rb8 21.Rf2 Bg5 22.Bf4 Bf4 23.Qf4 f6 24.Bf3 Qc8 25.g4 Rb7 26.Rc1 Qb8 27.Qd2 (27.Qb8 Reb8 28.c4 dc4 29.Rc4 Rb4+=) 27...Kh8 28.Kg2 Rb1 29.Rb1 Qb1 30.Rf1 Qb8 31.Re1 h6 32.Re2 Kg8 33.Qe1 Re2 34.Qe2 Kf7 (34...h5!?=) 35.c4+/– Qd6 36.Qd3 Kf8 37.Qc3 dc4 38.Qc4 Be8 39.Qc5 Qc5 40.dc5 Ke7 41.Kg3 Kd7 42.Kf4 ½–½. Cuellar,Jorge (2260) – Sieiro Gonzalez,Luis, Havana Radio Rebelde, 1982. (=1.Nf3 Nf6 2.b4 d6)

3.h3 g6 4.Bb2= Bg7 5.e4 Nbd7 6.Bb5 c6 7.Ba4 (7.Bd3 0-0=) 7...a6 (7...Qb6!? 8.0-0 Qb4-/+) 8.0-0= 0-0 9.d3 b5 10.Bb3 Bb7 11.Ng5 (11.Re1 c5=) 11...c5 12.bc5 Nc5 13.Nd2 Nb3 (13...e6 14.Rb1=+) 14.ab3 h6 15.Ngf3 Rc8 16.c4 bc4 17.bc4 Re8 18.Re1 e5 19.d4 (19.Qe2!?=) 19...ed4=+ 20.Bd4 (20.Qc2 Ne4 21.Ne4 Re4 22.Re4 d3 23.Qd3 Bb2-/+) 20...Ne4 21.Bg7 Nd2?? (better 21...Kg7 22.Ne4 Be4 23.Qd4 Qf6 24.Qf6 Kf6 25.Ra6 Bf3 26.Re8 Re8 27.gf3 Re6-/+) 22.Re8+- Qe8 23.Qd2 Bf3 (23...Kg7 24.Qb2 Kh7 25.Qb7 Rc4 26.Ra6 Qf8+-) 24.Qh6 (24.Bh6?! Bb7+=) 24...f5 25.gf3 (better 25.Bb2 Rc7 26.Qh8 Kf7 27.Qg7 Ke6 28.Qc7+-) 25...Rc4 (25...Rc7 26.Bc3 Rh7+-) 26.Qh8 (26.Bb2 Kf7 27.Qg7 Ke6 28.Re1 Re4 29.fe4+-) 26...Kf7 27.Qe8 Ke8 28.Ra6 Ke7 29.Kg2 Kf7 30.Bh6 d5 (30...Ke6 31.Kg3+-) 31.Bg5 d4 32.Rf6 Kg7 33.Rd6 Kf7 34.Bf6 d3 35.Bg5 (35.Be5 Rb4+-) 35...Rc3 36.Kg3 Rb3 37.h4 Ra3 38.Be3 Kg7 (38...Ke7 39.Rg6 Ra5 40.h5 f4 41.Kf4 Rh5 42.Ke4+-) 39.Kf4 Rb3 (39...Kf7 40.Kg5+-) 40.Kg5 Rb5 (40...Kf7 41.Rg6 f4 42.Rf6 Ke7 43.Rf4 Rb5 44.Rf5+-) 41.Rd3 (41.Rd7 Kf8 42.Kg6 f4 43.Bf4 Rb6 44.Kf5 Rb3+-) 41...Kf7 (41...f4 42.Kf4 Rb4 43.Kg5 Rb5 44.Kg4+-) 42.Rd6 (better 42.Rd7!? Ke8 43.Rg7 f4 44.Kf4 Kf8 45.Rg6 Kf7+-) 42...Ra5 (42...f4 43.Kf4 Rb4 44.Kg5 Rb5 45.Kg4 Rb4 46.f4+-) 43.f4 1-0. Gery Kasparov (2255) - paoloone (2020), ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 d6)

4.a3 (--> 1.b4 e5 2.Bb2 Nf6 3.a3 d6 4.Nf3).

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

4.g3 g6 5.Bg2 Bg7 6.Nc3 0-0 7.e4 Bg4 8.Qc1 Nc6 9.a3 a5 10.b5 Bf3 11.Bf3 Nd4 12.Qd1 a4 13.Bg2 Ra5 14.Bf1 d5 15.f3 de4 16.fe4 Qd7 17.h4 Nh5 18.Rg1 f5 19.Be2 Nf6 20.Bc4 Kh8 21.d3 fe4 22.de4 Ng4 23.Rf1 Rf1 24.Bf1 Ne3 25.Qd3 Nec2 26.Kd1 Na1 27.Ba1 Qf7 28.Nd5 Nb5 29.Bh3 c6 30.Nf4 Qb3 31.Kd2 Qd3 32.Nd3 Na3 33.Be6 Nb5 34.Ne5 Nd6 35.Bc3 Re5 36.Be5 Be5 0–1. Feldstein – Benko, New York 1989.

4.e4 e5 5.Bc4 (5.a3 Bg4 (5...Nc6 6.Bc4 Be7 7.0-0 0-0 8.d3 Bg4 9.h3 Bf3= 0.03; 5...Be7 6.Be2 Nbd7 7.0-0 0-0 8.d4 Re8 9.d5 c6+= 0.28) 6.Be2 Nc6 7.0-0 Be7 8.d3 d5 9.ed5 Nd5= 0.00) 5...Be7 (5...c6 6.Qe2 Be7 7.Bb3 0-0 8.0-0 Qb6 9.a3 a5= –0.09) 6.0-0 0-0 7.a3 Nc6 8.d4 ed4 (8...Bg4 9.de5 de5= 0.06) 9.Nd4 Ne5 10.Be2 Bg4 (10...c5!? 11.Nf3 b5=) 11.Bg4+= Neg4 12.Nf5 g6 13.Ne3 Qd7 14.Ng4 Ng4 15.Nd5 Ne5 16.Bb2 f6 17.Ne7 Qe7 18.Qd5 Kg7 19.Qb7 Nc4 20.Bd4 Nd2 21.Rfe1 Rfe8 22.Qc6 Qe6 (22...Qf7 23.Re3 a5 24.Rd1 ab4 25.Rd2 ba3 26.Rf3+–) 23.Qc7 Re7 (23...Kg8 24.Qc3 Ne4 25.Qd3+–) 24.Qc3 Nc4 25.Bf6! Qf6 26.Qc4 Rf8 27.f3 g5 (27...a5 28.ba5 Ra8 29.Qc6 Ra5 30.Red1+–) 28.Qa6 g4 29.fg4 Re4 (29...Qf2 30.Kh1 Qc2 31.Qd6 Re4+–) 30.Qb7 Kh6 31.Qe4 Qf2 32.Kh1 Qf6 (32...Kg7 33.c4+–) 33.c4 (better 33.Rad1 Kg7+–) 33...Kg5 (33...Qg6 34.Qg6 hg6+–) 34.Qd5 Kg6 35.Re6 Qe6 1–0. pozarski (1990) – NN, GameColony.com, 2002.

4.e4 Bg4 5.a3 A) 5...d5 A1) 6.h3 Bh5 7.e5 Ne4 8.Bd3 Nc3 9.dc3 e6 (9...Qd7= 0.19 10.g4 Bg6= 0.00) 10.0-0 Nd7= –0.03; A2) 6.ed5 Nd5 7.Bb2 Nc6 8.Bc4 e6 9.Nd5 ed5 10.Be2 Be6+= 0.41; B) 5...Nc6 B1) 6.Be2 B11) 6...d5 7.ed5 Nd5 8.Nd5 Qd5 9.0-0 (9.d4 0-0-0= 0.00 10.c4 Qd6= 0.09) 9...e6 10.Bb2 0-0-0= 0.22; B12) 6...e5 7.h3 Bf3 8.Bf3 Nd4 9.0-0 Be7 10.d3 0-0= 0.00; B2) 6.h3 Bf3 7.Qf3 e5 8.Nd5 Nd5 9.ed5 Nd4 10.Qd1 Qh4= 0.12.

4.e4 Bg4 5.Rb1 A) 5...d5 6.h3 Bh5 (6...de4 7.hg4 ef3 8.Qf3 Nc6 9.g5 Nd7 10.g6 fg6= 0.22) 7.e5 d4 8.ef6 dc3 9.fg7 Bg7= 0.09 10.Be2 Nc6= 0.09; B) 5...e5 B1) 6.h3 Bf3 (6...Bh5 7.Be2 Nc6 8.0-0 Bg6 9.d3 d5 10.ed5 Nd5= 0.06) 7.Qf3 Nc6 8.b5 Nd4 9.Qd3 ab5 10.Nb5 Ne6= –0.13; B2) 6.Bc4 Nc6 (6...Be7 7.0-0 Nc6 8.h3 Bh5 9.d3 b5 10.Bd5 Nd5= 0.06; 6...b5 7.Be2 Nc6 8.h3 Be6 9.Ng5 d5 10.Ne6 fe6= –0.19) 7.h3 Bf3 8.Qf3 Nd4 9.Qd1 c6 10.0-0 d5=+ –0.31; B3) 6.Be2 Nc6 7.0-0 Be7 8.d3 d5 9.ed5 Nd5= –0.03 10.Nd5 Qd5= –0.03.

4.e4 Bg4 5.Be2 A) 5...Nc6 6.a3 (6.h3 Bf3 7.Bf3 e5 8.0-0 Be7 9.Nd5 Nd5 10.ed5 Nd4= 0.22) 6...d5 7.ed5 Nd5 8.Nd5 Qd5 9.0-0 e6= 0.12 10.c4 Qd6= 0.22; B) 5...e6 B1) 6.a3 Be7 (6...Nc6 7.h3 Bh5 8.d4 d5 9.ed5 Nd5 10.Nd5 Qd5= 0.25) 7.0-0 d5 8.ed5 ed5 9.Re1 0-0 10.h3 Bd7= 0.12; B2) 6.Rb1 d5 (6...Nc6 7.h3 Bh5 8.b5 ab5 9.Rb5 Qc8 10.d4 Be7= 0.09) 7.h3 Bf3 8.Bf3 d4 9.Ne2 Nc6 10.0-0 Ne5=+ –0.38; B3) 6.h3 Bh5 (6...Bf3 7.Bf3 d5 8.ed5 ed5 9.a3 Be7 10.0-0 0-0= 0.22) 7.a3 Be7 8.0-0 0-0 9.d4 Bg6 10.Bd3 a5= 0.22; C) 5...e5 C1) 6.a3 Be7 (6...Nc6 7.h3 Be6 8.d4 ed4 9.Nd4 Nd4 10.Qd4 c5= 0.06; 6...a5 7.b5 Be7 8.0-0 0-0 9.d4 Nbd7 10.Be3 Re8+= 0.31) 7.0-0 Nc6 8.d3 d5 9.ed5 Nd5 10.Nd5 Qd5= 0.00/7; C2) 6.Rb1 Nc6 (6...Be7 7.d4 Nbd7 8.0-0 c6 9.h3 Bh5 10.Be3 0-0= 0.00) 7.0-0 Be7 8.d3 d5 9.ed5 Nd5 10.Nd5 Qd5= –0.06; C3) 6.h3 C31) 6...Bh5 7.0-0 Nc6 8.a3 Be7 9.Re1 (9.d3 0-0= 0.19 10.Be3 Re8= 0.19) 9...Bf3 10.Bf3 a5= 0.25; C32) 6...Bf3 7.Bf3 Nc6 8.Rb1 Be7 9.d3 Nd4 10.Be3 c6= 0.00.

4.a3 a5 5.b5 d4 6.Na4 e5 7.Ne5 Qd5 8.f4 Qb5 9.c4 Qa6 10.Bb2 Qa7 11.Qc2 Nbd7 12.c5 Bc5 13.Nd7 Nd7 14.Qe4 Kf8 15.Nc5 Nc5 16.Qd4 Ne6 17.Qe4 Bd7 18.f5 Ng5 19.Qd3 Qb6 20.Rb1 Qd6 21.f6 g6 22.Qe3 Ne6 23.Be5 Qc6 24.d4 Qd5 25.Qd3 Bc6 26.e3 Kg8 27.Rb2 a4 28.Qc3 Qe4 29.Bc4 Bd5 30.Bd5 Qd5 31.Qc2 b6 32.0-0 Qd8 33.Rb4 Qd7 34.Rc1 Ra7 35.Qc6 Qd8 36.Ra4 Ra4 37.Qa4 c5 38.dc5 Qd2 39.Qe8 Nf8 40.Bd6 Qc1 41.Kf2 Qd2 42.Kg3 Qe1 1–0. COMP – COMP, 2002.

4.a3 a5 5.b5 d4 6.Na4 e5 7.Ne5 Qd5 8.f4 Qb5 9.c4 Qa6 10.Bb2 Qa7 11.Qc2 Nbd7 12.c5 Bc5 13.Nd7 Nd7 14.Qe4 Kf8 15.Nc5 Nc5 16.Qd4 Ne6 17.Qe4 Bd7 18.f5 Ng5 19.Bg7 Kg7 20.Qe7 Nf3 21.gf3 Qd4 22.Rc1 Rhc8 23.e3 Qb2 24.Rg1 Kh8 25.Rc2 Qa1 26.Kf2 Bf5 27.Rc3 Bg6 28.Bc4 Qg1 1–0. COMP – COMP, 2002.

4.a3 a5 5.b5 e6 6.d4 Bd6 7.Bg5 Qe7 =.

4.e3 e4=+ 5.Nd4 d5 6.a3 a5 7.ba5 Ra5 8.d3 Bd6 9.Qd2 c6 10.Bb2 0-0 11.Be2 (11.Nb3!? Ra7 12.de4 de4 13.Rd1=) 11...Qc7=+ 12.h3 Nbd7 13.Nf5 ed3 14.cd3 (14.Qd3? Ne5 15.Nh6 gh6–+) 14...b6 15.Nd6 Qd6 16.Qc2 Nc5 17.d4 Nce4 18.0-0 Re8 19.Rfc1 Bd7 20.Ne4 Ne4 21.Bd3 Qh6 22.Re1 Qg5 23.Kh2 Qh4 24.Kg1 Rea8 25.f3 Ng5 26.f4 Ne6 27.Qb3 Qg3 28.Re2 b5 29.Qc2 g6 30.Qc3 f5 31.Rb1 h6 32.Bc2 Qh4 33.Bb3 Kg7 34.Qb4 Kh8 35.Qd6 Qd8 36.Rc1 Attacks the backward pawn on c6 36...Qe8 37.Rec2 R5a6 38.Qe5 Kg8 39.Qf6 Qf7 40.Qh4 Kg7 41.Qf2 Qf6 42.Qe2 Qh4 43.Rc3 R8a7 44.Qc2 Kh8 45.Qd1 Kh7 46.Qd2 Kg8 47.R3c2 Qg3 48.Qc3 Kg7 49.Re2 h5 50.Qb4 Qh4 51.Qd6 Kh6 52.Rec2 Qd8 53.Qe5 Ra8 54.Rc3 Qe7 55.Re1 Re8 56.Rd1 Kh7 57.Rdc1 Rea8 58.R3c2 Qf8 59.Rf2 (59.Kh2 Re8=) 59...Re8=+ 60.Bc2 (60.Rfc2!?=+) 60...Ra7–/+ 61.Bc3 Nc5 (worse 61...Qa3 62.Ra1 Qa1 63.Ba1=+) 62.Bb4 Re5 63.fe5 Qh6 64.Bc5 Qe3 65.Rcf1 (65.Ra1 Ra5–/+) 65...Ra8 (65...Ra3!? 66.Ba3 Qa3 67.Re2–+) 66.Kh1 Be6 (66...Ra3?! 67.Rf3 Qe2 68.Bd1=) 67.Rf3 Qg5 68.Kg1 Qd2 69.Bb3 Ra5 70.Kh2 Qg5 71.Bc2 h4 72.Kg1 Qd2 73.Bd3 Ra4 74.R1f2 Qc1 75.Rf1 Qg5 76.Be2 Qd2 77.Bd3 Kh8 78.R1f2 Qc1 79.Rf1 Qg5 80.R1f2 Qh6 81.Rf4 g5 (81...Kg8 82.Rf1–/+) 82.R4f3 f4 83.Bc2 (83.Rf1!?–/+) 83...Rc4 84.Bb6 Qf8 85.Ba7 Bf5 86.Bc5 (86.Bd1 Qd8 87.Bc5 Qa5–+) 86...Qf7 (86...Rc5 87.dc5 Be4 88.Be4 de4 89.Rc3–+) 87.Bb3 (87.Bf5 Qf5 88.Re2 Rc1 89.Rf1 Rf1 90.Kf1 f3–+) 87...Rc5! 88.dc5 Be4 89.Rc3 Qe7 90.e6 Qe6 91.Re2 (91.Rc1 Bg2! 92.Kg2 Qe3 93.Bd5 Qc1 (worse 93...cd5 94.Rcc2 Qg3 95.Kf1 Qa3 96.c6 Qh3 97.Kg1–+) 94.Bc6 Qa3–+) 91...Qe5 (91...Qf6 92.Bd5 Qd4 93.Kh2 Bd5 94.Rcc2–+) 92.Rf3 Qa1 93.Rf1 Qa3 94.Ba2 Qc5 95.Rff2 Qc3 96.Rd2 (96.Rf1 c5–+) 96...f3 97.Bd5 (97.Kh2 fg2 98.Rg2 Qe5 99.Kg1 Bg2 100.Rg2 c5–+) 97...Qc1 98.Kh2 cd5 99.gf3 Bf3! 100.Rf3 (100.Rf3 Qd2 Deflection (100...Qd2 Decoy; 100...Qd2 Overloading)) 0–1. GLChess210 – Gandalf432f, computer chess game, 2000.

4.e4 Nc6 5.Bb5 Be7 (5...Bd7 6.Rb1=) 6.Bc6 (6.d4 Bd7=) 6...bc6 7.0-0 Rb8 (7...Bg4 8.h3 Bh5 9.d3=) 8.a3 0-0 (8...Bg4 9.h3 Bh5 10.d3=) 9.d4+= ed4 10.Qd4 a6 (10...a5 11.ba5 Re8 12.Bg5+=) 11.Qd3 (11.Rd1 Bg4+=) 11...Nd7 (11...a5 12.ba5 Ra8 13.Re1+=) 12.Be3 Bf6 13.Ba7 Ra8 14.Bd4 Ne5 (14...Re8 15.Rfd1+=) 15.Be5+– Be5 16.Ne5 de5 17.Qg3 f6 (17...Qf6 18.f4+=) 18.Rfd1 Qe7 19.Na4 a5 20.Nc5 ab4 21.ab4 Be6 22.c3 Bc4 (22...Rfd8 23.Ra8 Ra8 24.Qf3+–) 23.Ra8 (23.Qg4 Ra1 24.Ra1 Rd8+–) 23...Ra8 24.Qg4 Rd8 25.Ra1 Bf7 (25...Qe8 26.h3+–) 26.Ra7 Qd6 27.h3 h5 (27...Bc4 28.Kh2 Qe7 29.Qg3+–) 28.Qf3+– Be8 (28...Qd1 29.Kh2+–) 29.Kh2 Kh7? (better 29...Qe7+–) 30.Nb7 Qe7 31.Nd8 Qd8 32.Ra6 (32.Qe3 Qe7+–) 32...Qd6 (32...c5 33.bc5 Bg6 34.Ra4+–) 33.Qe3 Qd8 34.f3 (34.Ra5 Qd6+–) 34...Qd7 (34...Qd6 35.Qf2+–) 35.Qc5 (35.Ra8 Bf7+–) 35...Qd2 36.Ra8 (36.Ra1 h4+–) 36...Qf4 (36...Bd7 37.Ra1+–) 37.Kh1 Qc1?! (37...Bd7 38.Qf2 h4+–) 38.Qg1 Qg1 39.Kg1 Bf7 40.Ra7 Bc4 41.Rc7 Bb5 42.c4! Bc4 43.Rc6 Bb5 (43...Bd3 44.Rc5+–) 44.Rc5 Bd3 45.b5 Kg8 (45...Kg6+–) 46.b6 Ba6 47.Ra5 Bb7 48.Ra7 Bc6 49.Rc7 (49.Rc7 Bd5 50.ed5 e4 51.b7 Kh8 52.b8Q Kh7 53.Qf8 Kg6 54.Rg7 Kf5 55.Qd6 ef3 56.Qe6 Kf4 57.g3) 1–0. marekt (2260) – netplayer29 (2065), ICC, 2003.

4.Bb2 b6 5.Nd5 Bg7 (5...e5 6.Nf6 Qf6=) 6.Ne3 (6.Nf6!? ef6 7.e3+=) 6...c5 (6...0-0 7.g3=+) 7.b5 (7.bc5 dc5 8.g4 0-0=) 7...a6 8.h3 (8.Nd5 ab5 9.Nf6 ef6=+) 8...0-0 (8...ab5 9.Nd5–/+) 9.c4 Nfd7 (9...ab5 10.cb5 Nbd7 11.Qc2–/+) 10.Qc2 (10.Bg7 Kg7 11.ba6 e5=) 10...f6 (10...ab5 11.Bg7 Kg7 12.Qb2 e5 13.Qb5=+) 11.Ng4 (11.Qe4 Ra7=) 11...e5 (11...ab5 12.cb5 Bb7 13.e4=+) 12.h4 (12.Qe4 Ra7 13.Qd5 Rf7 14.Qd6 e4=) 12...Qe7 (better 12...f5!? 13.Ne3 Nf6–/+) 13.h5= f5 14.Ne3 (better 14.hg6 hg6 15.Nh6 Bh6 16.Rh6+=) 14...g5? (better 14...Nf6 15.hg6 hg6=) 15.Nf5+– Rf5 (15...Qf6 16.Qe4 (16.Ng7?! Kg7 17.Qe4 Ra7+–) 16...Qf5 17.Qa8+=) 16.Qf5 Nf8? (16...h6 17.ba6 Na6 18.Qe4+–) 17.Qe4 (better 17.Qc8 e4 18.Bg7 Qg7 19.Rb1 ef3 20.ba6+– (worse 20.gf3 Qd7 21.Qd7 Nbd7+–)) 17...h6?? (better 17...Bb7 18.Qc2 e4+–) 18.Qa8 Qc7 19.Qd5 (19.e4 Bb7 20.Qa7 Ne6 21.ba6 Be4 22.Qc7 Nc7+–) 19...Kh8 (19...Be6 20.Qe4+–) 20.e3 (20.e4 ab5 21.cb5 Bb7+–) 20...Be6 (20...Bb7 21.Qd3 e4+–) 21.Qe4 ab5 22.Rb1 (22.cb5 Qf7+–) 22...bc4 (22...Qf7 23.Qd3 Bf5 24.e4+–) 23.Bc4 Bd7 (23...Qf7 24.Be6 Qe6 25.Qa8+–) 24.Nh2 (24.Bc3!? Bc6 25.Bd5 Bd5 26.Qd5 Nbd7+–) 24...b5 25.Bf7 Nh7 26.Ng4 (better 26.0-0 Bc6 27.Qg6 Nd7+–) 26...Bg4 27.f3 (27.Qg4!? Qf7 28.Qc8 Qf8+–) 27...Nf6 (27...Qf7 28.fg4 Nf6 29.Qd3+–) 28.Qd3 c4 (28...Qf7 29.Qb5 Nbd7 30.fg4 Ng4 31.Rf1+–) 29.Qg6 Bh5 (29...Bd7+–) 30.Rh5 Nh5 31.Qh5 Nd7 32.Qh3 (32.Bc3!? Nc5+–) 32...Nc5 33.f4 (better 33.Bg6 b4 34.Ba1 Nd3 35.Ke2+–) 33...Qf7= 34.Ba3 (better 34.f5=) 34...ef4 (34...Nd3 35.Ke2 gf4 36.Rb5=+ (36.Bd6? fe3 37.Qe3 Qg6–+)) 35.Rb5 (35.Bc5 dc5 36.Rb5 c3 37.Rc5 cd2 38.Kd1 fe3 39.Qe3 Qf1 40.Kd2 Qg2 41.Qe2 Qb7+–) 35...c3 (35...fe3 36.Rb8 (36.Qe3?? Nd3 37.Ke2 Qh5 38.g4 Qh2 39.Kf3 Qh1 40.Kg3 Nf4–+) 36...Kh7 37.Qe3 (worse 37.de3 Nd3 38.Kd2 Qf2 39.Kd1 Qe1 40.Kc2 Qe2 41.Kb1 Qd1 42.Bc1 Qc1) 37...Nd3 38.Ke2=+) 36.Rb8 (36.Bc5 cd2 37.Kd2 dc5 38.Qc8 Kh7 39.Qc5 fe3 40.Qe3 Qa2 41.Ke1 Qa1 42.Ke2 Qa2 43.Qd2 Qe6 44.Kf2 Qf7 45.Ke1 Qc4+–) 36...Kh7+= 37.dc3?? (better 37.Bc5 cd2 38.Kd1 dc5 39.ef4+=) 37...Qa2?? (better 37...Bc3 38.Kf1 fe3 39.Qf3 e2 40.Ke2 Qa2 41.Bb2 Bb2 42.Qf5 Kg7–+) 38.Qf5 1–0. Crusader Rabbit (1730) – slimblue0 (1615), ChessWorld.net, 2020.

4.Bb2 Bg7 5.e3=.

4.d4 Bg7 5.e4 0-0 6.Rb1 Nbd7 7.Be2 c5 8.bc5 dc5 9.0-0 cd4 10.Qd4 Ne4 11.Qe4 Bc3 12.Rd1 Qa5 (12...Bf6 13.Bh6+/–) 13.Qe7+= Qa2 14.Bh6 Bf6 (14...Qc2? 15.Bd3 Qa4 16.Bb5+–) 15.Qd6 Bg7 (15...Qc2? 16.Bb5 Bg7 17.Bg7 Kg7 18.Bd7 Bd7 19.Qd4 (19.Qd7?! Rad8 20.Ne1 Rd7 21.Nc2 Rd1 22.Rd1 Rc8+/–) 19...Kg8 20.Qd7+–) 16.Bg7 Kg7 17.Nd4 Nf6 18.Qc7 Kg8 19.Qe5 Nd7 20.Qe7 Nb6 21.Bf3 Qa4 22.h3 Re8 23.Qg5 Qd7 24.Nb5 Qe7 25.Qe7 Re7 26.Rd8 Kg7 27.Nd6 Rd7 28.Rd7 Bd7 (worse is 28...Nd7 29.Bb7 (worse is 29.Nb7 Rb8+=) 29...Bb7 30.Rb7+= (worse is 30.Nb7 a5–/+)) 29.Bb7 Rd8 30.c4 Be6 31.c5 Na4 32.Ne4 f5 33.Bc6 fe4 34.Ba4 Rc8 35.Rb7 Kh6 36.Re7 Bd5 37.Re5 Bc6 (worse is 37...Rc5 38.Kh2 a5 39.Bd7+/–) 38.Bc6 Rc6 39.Kf1 Kg7 40.Re4 a5 41.Re7 Kh6 42.Re5 Kg7 43.Ke2 Kf6 44.f4 Re6 45.c6 Rc6 (45...Re5 46.fe5 Ke7 47.Kd3+–) 46.Ra5 Rc3 47.h4 h5 48.Re5 Ra3 49.Kf2 Rb3 50.g3 ½–½. Taulien,Hans_Juergen (2350) – Badestein,Hartmut (2340), RSX – FSO1 remoteschach.de, 2006.

4.d4 Bg7 5.e4 Bg4 6.Be2 0-0 7.h3 White fights for the Initiative 7...Bd7 8.e5 de5 9.de5 Ne8 10.0-0 Nc6 11.Bf4 a6 12.Rb1 Na7 13.Qd2 Be6 14.Qe3 c6 15.Rfd1 Qc7 16.Ng5 Nb5 17.Na4 (17.Na4 Ba2 18.Ra1+=; 17.Ne6!? fe6 18.Na4+–) 1–0. pcmvr – alexp, net–chess.com, 2020.

4.e4 Bg7 5.d4 Bg4 6.Be2+= a6 7.0-0 Nc6 8.d5 Ne5 9.Ne5 Be2 10.Qe2 de5 11.Na4 0-0 12.c4 b6 13.Nb2 Qd7 (13...Ne8 14.c5+=) 14.Nd3+– Ne8 (14...Nh5 15.Rb1+–) 15.Bb2 f6 16.f4 (16.Rfc1+–) 16...ef4 (16...Nd6!?+–) 17.Nf4+– c6 18.Ne6 Rf7 19.Rad1 cd5 (19...a5 20.ba5 Ra5 21.a3+–) 20.ed5 Nd6 (20...f5 21.c5+–) 21.c5 bc5 22.bc5 Nb5 23.Rf3 Rc8? (23...Qa7+–) 24.a4 Nc7 (24...Na7 25.Qa6 Nc6 26.a5+–) 25.c6 Qe8 (25...Qd6 26.Ba3 Qe5+–) 26.Nc7 Rc7 27.d6 Rc6 (27...Qc6 28.dc7 Qc7 29.Qa6+–) 28.d7 Qd8 29.Rc3 Rc3 30.Bc3 f5 (30...e5 31.Qc4 Bf8+–) 31.Ba5!! Qa5 32.d8Q Qd8 33.Rd8 Bf8 34.Qa6 Rf6 (34...Kg7+–) 35.Qc4 Kg7 36.a5 1–0. pcmvr – alexp, net–chess.com, 2019.

4.a3 e4 5.Nd4 c5 6.Nc2 d5 7.cd5 Nd5 +=.

4.Nc3 Be7 5.d4 0-0 6.e4 Nc6 7.Rb1 ed4 =.

4.Nc3 g6 5.g3 (5.d4 A) 5...e4 6.Nd2 Bf5 7.e3 Bg7 8.Be2 Qd7 9.h3 h5 10.0-0+=; B) 5...a5 6.de5 Ng4 7.Bg5 Qd7 8.Nb5 d5 9.Qd5 Bb4 10.Bd2+/–; C) 5...Nbd7 6.Bb2 (6.e4 ed4 7.Nd4 Bg7 8.Bd3 c5 9.bc5 dc5 10.Ndb5=; 6.e3 Bg7 7.Bd3 Qe7 8.Nb5 Kd8 9.Bc2 c6 10.Nc3=) 6...Bg7 7.de5 de5 8.e4 0-0 9.Qa4 Qe7 10.Rd1=; D) 5...ed4 6.Nd4 Bg7 7.a3 a5 8.Bb2 0-0 9.e3 ab4 10.ab4=; 5.e4 Nc6 6.Rb1 (6.a3 a5 7.b5 Nd4 8.Be2 Bh6 9.d3 Bc1 10.Rc1=) 6...Nd4 7.Be2 a5 8.b5 Bg7 9.0-0 Nf3 10.Bf3+=) 5...Bg7 (5...Be6 6.d3 d5 7.Qa4 Bd7 8.b5 d4 9.Nb1 Bd6 10.Ba3=) 6.Bg2 0-0 (6...Nc6 7.Rb1 Bf5 8.d3 0-0 9.0-0 Re8 10.e4=) 7.0-0 Nh5 (7...Nbd7 8.Rb1 a5 9.b5 Nb6 10.d3=) 8.Rb1 (8.Bb2 f5 9.d3 Nf6 10.Qb3=) 8...f5 9.Qb3 (9.Bb2 e4 10.Ne1+=) 9...Kh8 (9...e4 10.Ne1=) 10.c5 (10.d3!?+=) 10...e4= 11.Ne1 Nf6 (11...dc5 12.bc5 Na6 13.c6 bc6 14.Qc2=) 12.cd6 cd6 13.d3 d5 14.Bg5 Nc6 15.de4 de4 16.Nc2 h6 17.Be3 Qe8 18.Bc5 Be6 19.Qa3 Rf7 20.Nb5 (20.Rbd1 Rc8=) 20...Rd7+= 21.Ncd4 (21.Nd6 Qg8 22.b5 Ne5+=) 21...Nd4–/+ 22.Nd4 Bf7 23.Nb3 b6 24.Bd4 Bb3 25.Bf6 Bf6 26.Qb3 b5 27.a4 ba4 28.Qa4 Rd6 29.b5 Qd7 30.Rfd1= Rd1 31.Rd1 Qc7 32.Qa6 Kg7 33.Rd6 Rf8 34.e3 Rf7 35.Bf1 h5 36.Kg2 Qc5 37.Rc6 Qe5 38.Bc4 Re7? 39.Qc8+– Re8 40.Qa6 Re7+= 41.h4 Rc7 42.Ba2 Rc6 43.bc6 Qc7 44.Qc4 Be5 45.Qe6 Kh6 46.Qe8 Qd6? 47.Bf7+– Qd1?? 48.Qe5 Qf3 49.Kg1 (49.Kg1 Kh7 50.Bb3 Qd1 51.Bd1 f4 52.c7 fg3 53.c8Q gf2 54.Kf2 g5 55.Qd7 Kg6 56.Qg5#) 1–0. Welling,Gerard – Harestad,Hans Krogh, Velden, 1995. (=1.Nf3 Nf6 2.b4 d6 3.c4 e5)

4.d3 d5 5.c5 Nc6 6.Qa4 Qe7 7.Bb2 d4 +=.

4.d3 Be7 5.Nbd2 c6 6.Bb2 0-0 7.g3 Bg4 8.Bg2 Qd7 9.0-0 Bh3 10.Rc1 Bg2 11.Kg2 Na6 12.Qb3 Qf5 13.e4 Qh5 14.h3 Nc7 15.d4 ed4 16.Nd4 Rfe8 17.Nf5 Ne4 18.Ng7 Nd2 19.Nh5 Nb3 20.ab3 d5 21.Rfe1 Ne6 22.f4 Bb4 (better is 22...Kf8!? 23.cd5 Rad8+=) 23.Nf6+/– Kf8 24.Ne8 (24.Nh7!? Ke7 25.Bf6 Kd6 26.Be5 Ke7 27.Red1+/–) 24...Be1 25.Nf6 Bb4 26.cd5 cd5 27.f5 Ng5 28.Rc7 Be7 (28...Bd6!? 29.Rd7 Rc8+/–) 29.Nd5+– Rd8 30.f6 (30.Re7?! Rd5 31.Ba3 Kg7+=; 30.Ne7?! Rd2 31.Kf1 Nf3+=) 30...Bd6 31.Rb7 Bc5 (better is 31...a6!?+–) 32.Bc1 Ne4? (32...Ne6 33.b4+–) 33.Bh6 (better is 33.Kf3 Ng3 34.Kg3+–) 33...Ke8 34.Nc7 Kd7 35.Na6 Ke6 36.Nc5 Nc5 37.Ra7 Nb3 38.h4 Re8 39.Bg7 Nc5 40.Kf3 Nd7 41.Ra6 Kd5 42.Kg4 Re3 43.Ra5 Ke6 44.Ra6 Kd5 45.Ra5 Ke6 46.Rh5 Nf6 47.Bf6 Kf6 48.Rh7 Kg6 49.Rh8 Re4 50.Kf3 Ra4 51.Rg8 Kh7 52.Rg5 Kh6 53.Rf5 Kg6 54.Rf4 Ra3+/– 55.Kg4 f5 56.Kh3 Ra6 57.Rb4 Rc6 58.Rb5 Rf6 59.Kg2 Rc6 60.Rb4 Ra6 61.Kf3 Rc6 62.Kf4 Re6 63.h5! Kf6 64.h6 Kg6 65.h7! Kh7 66.Kf5 Ra6 67.Rb7 Kg8 68.g4+– Rc6 69.g5 Ra6 70.Rb5 Rc6 71.Kg4 Ra6 72.Kh5 Rc6 73.Rf5 Ra6 74.g6 Ra1 75.Kg5 Kg7 76.Rf7 Kg8 77.Rf5?? Kg7= 78.Rf7 Kg8 79.Rf4 Kg7 ½–½. Bilgin,Murat Evrensel – Demirag,Batuhan, Gebze TUR, 4th Open, 2013. (=1.Nf3 d6 2.b4 Nf6 3.c4 e5)

4.d3 Be7 5.e4 0-0 6.Be2 a5 7.b5 Ng4 =.

4.d3 Bg4 5.Nbd2 Be7 6.h3 Be6 7.e4 a5 =.

4.b5 b6 5.e3+= Bb7 6.Bd3 Nbd7 7.Bb2 e6 8.0-0 Be7 9.c4 c5 10.bc6 Bc6 11.Nbd2 d5 12.Rc1 Bb7 13.cd5+= ed5 14.Re1 0-0 15.a4 Bb4 16.Bc3 Ba3 17.Rc2 Bc6 18.Bb2 Bb2 19.Rc6 Ba3 20.Qb3 Bb4 21.Rec1 Qe7 22.R1c2 Rfd8 23.Nb1 Nf8 24.Rb6+– Rac8 25.Nc3 Qa7 26.Rf6 gf6 27.Nd5 Rc2 28.Bc2 Rd6 29.Be4 Ng6 30.Nb4 Qb6 31.Bd5 Qb4 32.Bf7 Kg7 33.Bg8 Qb3 34.Bb3 Rb6 35.Nd2 Ne7 36.Kf1 Nc6 37.Ke2+– Nd8 38.e4 Rb4 39.Kd3 Nc6 40.d5 Ne5 41.Kc3 Ng4 42.Nc4 Nf2 43.Bc2 Rb8 44.Na5 Re8 45.Kd4 Ng4 46.Nc6 Nh2 47.d6 Re6 48.Kd5 Rd6 49.Kd6 (49...f5 50.a5 fe4 51.Be4+–) 1–0. b4_player (2230) – ceskysachista (2150), GameColony.com, 2003.

4.b5 c5 5.dc5+= dc5 6.Qd8 Kd8 7.Bb2 e6 8.Nc3+/– Bd6 9.e4 Nbd7 10.Rd1 Ke7 11.b6 Rd8 12.Rd6!+/– Kd6 13.e5! Ne5 14.Nb5 Kd5?? (better is 14...Ke7 15.Be5 Nd5+–) 1–0. kamret (2165) – goranste (1640), GameColony.com, 2003.

4.b5 e6 5.Bg5 =.

4.b5 Bg4 5.Nbd2 =.

4.c4 Bf5 A) 5.e3 e6 (5...d5 6.c5 e6 7.Be2 Be7 8.0-0 0-0 9.Nbd2 Ne4=) 6.Be2 Ne4 7.0-0 d5 8.Ba3 dc4 9.Bc4 Bd6=; B) 5.Nc3 Na6 (5...Qb6 6.a3 a5 7.b5 Nbd7 8.Nh4 Be6 9.e3 Qc7+=) 6.a3 e6 7.Bg5 Be7 8.e3 h6 9.Bf6 Bf6+=.

4.c4 Bg4 5.Qb3 (5.Nc3 e6 (5...Nbd7 6.h3 Bf3 7.ef3 e6 8.Be3 Be7 9.Bd3 d5=) 6.e3 d5 7.c5 b6 8.a3 a5 9.Na4 Nfd7+=; 5.e3 e5 6.de5 Bf3 7.Qf3 de5 8.a3 e4 9.Qf5 a5=; 5.Nbd2 e5 6.Qc2 ed4 7.Nd4 c5 8.bc5 dc5 9.N4f3 Bd6=) 5...Nbd7 (5...e6 6.Nbd2 d5 7.e3 dc4 8.Bc4 Bd6 9.0-0 0-0=) 6.Nbd2 (6.h3 Bf3 7.ef3 d5 8.Be3 e5 9.Nc3 ed4+=) 6...e5 7.de5 (7.e4 Bf3 8.Nf3 ed4 9.Bd3 Qb6+=) 7...de5 8.Bb2 e4 (8...a5 9.b5 a4+=) 9.Ne5 (9.h3 ef3+=) 9...Ne5 10.Be5 Qe7 11.Qc3 Qb4 12.Bf6 gf6 13.Qf6 (better is 13.Ne4!? 0-0-0 14.a3 Qc3 15.Nc3=) 13...Rd8–/+ 14.Qf4 Bg7 15.Qe4 (15.Rb1 Qc3 16.g3 0-0–+) 15...Be6 16.Rd1 Bc3?? (better is 16...Qb2 17.e3 Rd2 18.Rd2 Bc3–+) 17.Qc2–/+ 0-0 18.e3 Bc4 19.a3 Bb3 20.Qb2 (20.ab4?? Bc2 21.f4 Bd1 22.Kd1 Rd2 23.Kc1 Re8–+) 20...Bb2 (20...Bd1?! 21.Qb4 (21.ab4?? Bb2 22.Kd1 Bc3–+) 21...Bb4 22.ab4–+) 21.ab4 Bd1 (better is 21...Bc3!? 22.Bd3 Bd1 23.Kd1 Rd3 24.Kc2–+) 22.Kd1 Bc3 (22...Bc3 23.Kc2 Bd2–+) 0–1 (28.). Schlaugat – Vieten, (year?). (=1.Nf3 Nf6 2.b4 d6 3.d4 c6)

4.e3 g6 5.Be2 Bg7 6.0-0 0-0 7.a3 Bf5 8.Bb2 Nbd7 9.Nbd2 Nb6 10.c4 Qc7 11.a4 a5 12.ba5 Ra5 13.Bc3 Raa8 14.a5 Nc8 15.Nh4 Bd7 16.Qb3 c5 17.Rfb1 Ra7 18.Bd3 Bc6 19.d5 Bd7 20.Nhf3 Ne8 21.Ra3 f5 22.Qb2 Bc3 23.Qc3 Nf6 24.Rb2 e5 25.de6 Be6 26.Ng5 Qe7 27.Ne6 Qe6 28.Be2 Ne7 29.Bf3 Qd7 30.Rb6 Nc8 31.Rb5 Qc7 32.Rab3 Rf7 33.Bb7 Rb7 34.Rb7 1–0. themonkey (2105) – ravi_01 (1875), GameColony.com, 2002.

4.Bb2 c6 5.c4 Qc7 6.Qb3 e5 7.Nc3 Be7 8.e3 0-0 9.Be2 Re8 10.0-0 Nf8 11.Rfd1 Ng6 12.a4 Bf5 13.a5 e4 14.Ne1 Qd7 15.d5 Bg4 16.Qc2 Rac8 17.a6 cd5 18.Nd5 Nd5 19.ab7 Rb8 20.Rd5 Rb7 21.c5 (21.Bg4 Qg4 22.b5 Rc8+=) 21...Rc7 (21...Be2 22.c6 Qe6 23.cb7 Qd5+/–) 22.Rad1+= Be6 23.R5d2 Qc8 24.Bb5 Rd8 25.c6 (25.Qe4 dc5 26.Rd8 Bd8+=) 25...d5 26.Qa4 Rd6 27.Bd4 Bg4 28.Ra1 Bf6 29.Bc5 (better is 29.Bf6 Rf6 30.Rd5+/–) 29...Rdc6= 30.Bc6 Ba1 31.Rd5 (better is 31.Qa1!? Rc6 32.Rd5+=) 31...Bf6= (31...Rc6? 32.Qc6!! (32.Qa1?! h6+=) 32...Bf6 33.Qc8 Bc8 34.Ba7+–) 32.b5 a6 33.ba6?? (better is 33.Bd6 ab5 34.Rb5 Rc6 35.Rb8 Qb8 36.Bb8+=) 33...Rc6–+ 34.a7 Qa8 35.Bd4? (35.Qe4 Rc5! 36.Rd8 Qd8–+) 35...Rc8 36.Rc5 Rd8 (36...Rc5!? 37.Bc5 Ne5 38.Qb4–+) 37.Rc7 Bd4 38.ed4 Nf4 39.Nc2 Bd1 (better is 39...Nd5 40.Rc5 Be6–+) 40.Qc4?? (better is 40.Qc6 Qc6 41.Rc6+=) 40...Nd5 41.Rc5 Bc2 (41...Bc2 42.Qc2 Qa7–+; 41...Qa7?! 42.Rd5 Rb8 43.Ne3=) 0–1. Mrozinski,Werner – Laudage,Bernd, Ruhrgebiet VK3–chT, 1995. (=1.Nf3 Nf6 2.b4 d6)

4.Bb2 e5+= 5.e3 e4 6.Nfd2 (6.Ng5 d5 7.Bc3 Be7 8.Be2 0-0 9.Qd2 h6 10.Nh3) 6...d5 7.b5 (7.a3 a5 8.ba5 Ra5 9.c4 Bd6 10.cd5) 7...Bd6 (7...Nb6 8.Be2+= (8.c4 dc4 9.Nc3 Be6 10.Nde4) 8...Be6 9.0-0 Bb4 10.Nc3) 8.c4= c6 (8...0-0 9.Be2 a6 10.Nc3) 9.a4 (9.Nc3 0-0= 10.Be2; 9.c5 Bb8 10.Nc3) 9...0-0 10.Nc3 Re8 (10...Bb4 11.Qb3 Qa5 12.Be2=) 11.Qb3 (11.cd5 cd5 12.Qb3 Qa5=) 11...Qe7 12.bc6 (12.cd5 c5 13.Nd1 cd4 14.Bd4 Be5=) 12...bc6 13.cd5 Rb8 14.Qa2 (14.Qc2 cd5 (worse is 14...Nd5 15.Nde4 Bb4 16.Bd3+=) 15.Nb5 a6 16.Nd6 Qd6=) 14...cd5 15.Ba3 a6 16.Be2 Nf8 17.Bd6 Qd6 18.Qa3 Qe6 (18...Qc6 19.Rc1 Qe6 20.0-0=) 19.Nb3 (19.0-0 Re7=) 19...Ng6 (19...N8d7 20.0-0=) 20.Nc5+= Qf5 21.Ba6 Nh4 22.Rg1 Ba6 23.Na6 Rbc8 24.h3 Nd7 25.Ne2 Nb6 (25...Rc4 26.Qd6 Rec8 27.a5+=) 26.Qd6 Nc4 27.Qg3 Qf6 28.Nb4 Qb6 29.Nd5 (29.Qh4 Qb4 30.Nc3 Qc3 31.Ke2 Qb2 32.Ke1 Qa1 33.Ke2 Qb2 34.Kf1 Qc1 35.Ke2 Qd2 36.Kf1 Qd1) 29...Qa5 30.Ndc3 Nf5 31.Qf4 Nb2 (better is 31...Nce3 32.Rc1 Nc4+=) 32.Kf1 (better is 32.Kd2 Nd3 33.Qg5=) 32...Nd3–+ 33.Qg4 (33.Qg5 Rc3 34.g4 Ng3 35.Rg3 Qg5 36.Nc3 Qa5–+) 33...Rc3 34.Nc3 (34.Rb1 Rb3!! 35.Ra1 Ra3–+) 34...Qc3 35.Rd1 Nf2! (35...Nf2 36.Kf2 Qe3 37.Kf1 Ng3 38.Qg3 Qg3–+) 0–1. Arkell,Keith (2475) – Quillan,G (2340), Monarch Assurance Isle of Man, 2006. (=1.Nf3 Nf6 2.b4 d6 3.d4 Nbd7)

4.Bb2 g6 5.Nbd2= Bg7 6.e4 e5 7.de5 de5 8.Bc4 Qe7 9.a3 0-0 10.Qe2 b6 11.0-0 Bb7 12.Ba6 Ba6 13.Qa6 c5 14.b5 Ne8 15.Nc4 Qe6 16.Qb7 Rb8 (16...Rd8 17.Nfd2+=) 17.Qa7+/– Qc4 18.Qd7 Qe4 19.Rae1 Qc2 20.Be5 Be5 21.Ne5 Nf6 22.Qd6 (22.Qa7 Qa2+/–) 22...Kg7+= 23.Nc6 Rb7 24.Re3 (24.Qg3 Rd7=) 24...Rd7 25.Qe5 Re8 (25...Rd1!? 26.Ree1 Re1 27.Qe1 Qb3+=) 26.Qa1= Re3 27.fe3 Rd6 28.a4 (28.Qe5 Re6 29.Qc7 Qd3–/+ (29...Re3 30.Rf6 Re1 31.Rf1 Rf1 32.Kf1+/–)) 28...Qd2 29.Re1 Kg8 30.h3 Ne4 31.Ne7 Kf8 32.Nc8 Qf2 (32...Rf6 33.Kh1–/+) 33.Kh1= Rf6 34.a5? Qg3 (better is 34...ba5 35.b6 Qg3–/+) 35.Re2?? (35.Nb6 Kg8 36.Nd5 Nf2 37.Kg1 Nh3 38.Kh1–+) 35...Qb8–+ 36.Qf6 Nf6 37.Nb6 Qb7 38.Rd2 c4! 39.Rd6 Ne4 40.Rc6 c3 41.a6 Qa7 42.Nd5 Ke8 43.b6 Qa6 44.Nc7 Kd7 45.Na6 Kc6 46.Nb4 Kb6 47.Kg1 Kb5 48.Nd3 Kc4 49.Nc1 c2 0–1. Chandler,Patrick (2190) – Liebold,Thomas (2160), Oberliga Ost–B, 2000. (=1.Nf3 Nf6 2.b4 d6 3.d4 Nbd7)

4.c4 e5 5.e3 ed4 (5...a5 6.b5=) 6.ed4 a5 (6...d5 7.c5=) 7.b5 c6 (7...d5 8.c5=) 8.Nc3+= Be7 9.Bd3 0-0 10.0-0 Re8 11.Re1 Nb6 Black prepares a4 12.Bf4 h6 (12...Bg4 13.Rb1+=) 13.Rb1 c5 14.d5 Nh5 (14...Bg4 15.h3 Bh5 16.a3+=) 15.Bd2 a4 (15...Nf6 16.Qe2+=) 16.h3 f5 (16...Nf6 17.Re2+–) 17.Qc2 Bd7 18.Rbc1 Rf8 (18...Nf6 19.Ne2+–) 19.a3 (19.Re2 g5+–) 19...g5 20.Ne2 (20.Re2 Bf6+–) 20...Ng7 (20...g4 21.hg4 (21.Bh6?! gf3 22.Bf8 Bf8 23.gf3 Bh6=) 21...fg4 A) 22.Bh6 gf3 23.Bf8 Qf8=+ (23...Kf8?! 24.Ng3 Ng3 25.fg3=; 23...Bf8?! 24.Ng3 Qg5 25.gf3–/+); B) 22.Nh2+=) 21.Ng3+– Rf7 (21...g4 22.hg4 fg4 23.Bh7 Kh8 24.Bh6+–) 22.Re2 Qf8 23.Bc3 (23.Rce1 Bf6+–) 23...Bf6 24.Rce1 Bc3 25.Qc3 f4 (25...Ra7 26.Qd2+–) 26.Nf1 Nf5 27.N1d2 (27.Be4 Qg7 28.Qc2 Nd4 29.Nd4 Qd4+–) 27...Qg7 28.Qg7 Kg7 29.Kh2 Raf8 (29...Kf8 30.Ne4+–) 30.Ne4 (30.Re4 Rg8+–) 30...Kh8 31.Rd1 Rg7 32.Kh1 Rgf7 (32...Re8 33.Rf1+=) 33.Rf1 (33.Kg1 Re8+–) 33...Re8 (33...Re7 34.Rfe1+=) 34.Rfe1+– Kg7 35.Kh2 Nc8 36.Rd1 ½–½. Sternik,Ryszard (1860) – Ropokis,Dimitrios (1845), FICGS, 2010. (=1.Nf3 Nf6 2.b4 d6 3.d4 Nbd7)

4.d5 e5 5.Nc3 Be7 6.e4 0-0 7.Bd3 c5 8.a3 b6 9.0-0 Qc7 10.Qe2 a6 11.b5 a5 12.Nh4 Re8 13.Nf5 Bf8 14.Be3 g6 15.Nh6 Kg7 16.Qf3 Be7 17.Rfe1 Nf8 18.Rad1 Bd7 19.g4 Qc8 20.g5 Ng4 21.Qf7 1–0. kolya (2005) – lomin (1640), GameColony.com, 2002.

4.a3 e6 5.Nh4 Bg4 6.g3 d5 7.Bg2 a5 =.

4.e3 c6 5.Be2 Qb6 6.Bd2 Ne4 7.c4 a5 =.

4.e3 Nc6 5.Bb5 a6 6.Bc6 bc6 7.0-0 g6 8.c4 a5 9.ba5 Ra5 10.Qe2 Bg7 11.Nbd2 c5 12.e4 Bg4 13.Nb3 Ra4 14.dc5 Be6 15.cd6 cd6 16.Nfd2 Ng4 17.Rb1 Ra2 18.h3 Ne5 19.Rb2 Ra4 20.Rc2 Rg8 21.c5 Rb4 22.Ba3 Bb3 23.Rc3 Nd7 24.Bb4 Bc3 25.Bc3 Be6 26.cd6 ed6 27.Ra1 h6 28.Nc4 Ke7 29.Nd6 Kd6 30.Bb4 Kc7 31.Ba5 Nb6 32.Rc1 Kb8 33.Qb5 Bd7 34.Qa6 Bc8 35.Qf1 Bb7 36.Qb5 Ka7 37.Rb1 Kb8 38.Bb6 Qe7 39.Qa5 Qe4 40.Qa7 Kc8 41.Rc1 Kd7 42.Rc7 Ke6 43.Rb7 Qe1 1–0. COMP – COMP, 2002.

4.e3 Nc6 5.Bb5 a6 6.Bc6 bc6 7.Bd2 Qc8 8.0-0 Rb8 9.Nh4 Be6 10.Na3 g5 11.Nf3 Bh6 12.c4 g4 13.Ne1 Ne4 14.f3 gf3 15.Nf3 Rg8 16.Qc2 d5 17.Ne5 Bh3 18.cd5 Rg2 19.Kh1 c5 20.Qe4 Rd2 21.Rf7 Bg2 22.Qg2 Rg2 23.Kg2 cd4 24.Rh7 Rb6 25.Rf1 Rg6 26.Kh1 Rf6 27.Rf6 ef6 28.Rh6 Qf5 29.Rh8 Ke7 30.Nc6 Kf7 31.h4 Qd5 32.Kh2 Qd6 33.Kg1 Qc6 34.ed4 Qc1 35.Kf2 Qa3 36.Rh7 Kg6 37.Rc7 Qa2 38.Ke3 Qb3 39.Kd2 Qg3 40.h5 Kh5 41.Rc5 Kg6 42.Kc2 Qa3 43.Rc4 Kf5 44.Rc3 Qb4 45.Kd3 Qb1 46.Rc2 0–1. COMP – COMP, 2002.

4.e3 Nc6 5.Bb5 a6 6.Bc6 bc6 7.Bd2 Qc8 8.0-0 Rb8 9.Nh4 Be6 10.Na3 g5 11.Nf3 Bh6 12.c4 g4 13.Ne1 Ne4 14.f3 gf3 15.Nf3 Rg8 16.Qc2 d5 17.Ne5 Bh3 18.cd5 Rg2 19.Kh1 c5 20.Qe4 Rd2 21.Rf7 Bg2 22.Qg2 Rg2 23.Kg2 cd4 24.Rh7 Rb6 25.Rf1 Rg6 26.Kh1 Rf6 27.Rf6 ef6 28.Rh6 Qf5 29.Rh8 Ke7 30.Nc6 Kf7 31.h4 Qd5 32.Kh2 Qd6 33.Kg1 Qc6 34.ed4 Qc3 35.Kg2 Qa3 36.Rh7 Kg6 37.Rc7 Qa2 38.Kf3 Qe6 39.Rc5 Qh3 40.Ke4 Qh4 41.Kd3 Qh3 42.Kc4 Qf1 43.Kc3 Qc1 44.Kd3 Qd1 45.Kc3 Qa1 46.Kc4 Qa2 47.Kc3 Qe6 48.d5 Qh3 49.Kd4 Qh4 50.Kc3 Qg3 51.Kd4 Qf4 52.Kc3 Qe5 53.Kc4 Qf4 54.Kc3 Kf5 55.Ra5 Qe3 56.Kb2 Qd4 57.Kb3 Qd3 58.Ka4 Ke5 59.Rc5 f5 60.d6 Kd6 61.Rc8 0–1. COMP – COMP, 2002.

4.e3 d5 5.Bd3 Bd3 6.Qd3 Nbd7 7.0-0 e6 =.

4.e3 Ne4 5.d5 e5 6.Bd3 c6 7.c4 Nf2 =.

4.e3 e6 5.Bd3 Bd3 6.Qd3 Nbd7 7.0-0 d5 =.

4.a3 e6 5.Nbd2 d5 6.c4 Bf3 7.ef3 Be7 =.

4.Qd3 Nbd7 5.h3 Bf3 6.ef3 e5 7.Nc3 c6 =.

4.e3 d5 5.a3 e6 6.c4 Nbd7 7.Nbd2 Bd6 =.

4.e3 Nbd7 5.Bb2 e5 6.Be2 e4 7.Nfd2 Be2 8.Qe2 d5 9.b5 a6 10.0-0 ab5 11.Qb5 Bd6 12.f3 (12.Qb7? Rb8 13.Qc6 Rb6–+ (worse is 13...Rb2 14.Nb3–+)) 12...ef3 13.Rf3 0-0 14.Qd3 (14.Qb7? Rb8 15.Qc6 Rb2–+) 14...c6 15.c4 dc4 16.Nc4 Bh2 17.Kh2 Ng4 (17...b5 18.Ncd2 Ne5 19.Qf5 Nf3 20.Nf3 (worse is 20.gf3 Nd5 21.Nf1 Re8–/+) 20...Qd6 21.Ne5+=) 18.Kg3 (better is 18.Kg1!? Nde5 19.Qb3=) 18...Nde5= 19.Ne5 Ne5 20.Qf5 Nf3 21.gf3 Ra5 22.Qh3 g6 23.f4 (23.Kf2 Rh5 24.Qg3 Qb6+=) 23...Re8 24.Kf2 Rh5 25.Qg3 Qd7 26.Bc1 c5 27.dc5 Qd1 28.Qg1 Qd3 29.Bd2 Rh3 (29...Rc5?! 30.Qg4–/+) 30.Kg2? (30.Qg4 Rh1 31.Qg2 Rb1 32.Rb1 Qb1 33.Qd5–+) 30...Ree3 (worse is 30...Rhe3 31.Be3 Re3 32.Qe3 Qe3 33.a4–+) 31.Be3 Re3 (31...Re3 32.Qe3 Qe3–+) 0–1. Mrozinski,Werner – Hirsch,Stefan (2240), Ruhrgebiet VK3, 1996. (=1.Nf3 Nf6 2.b4 d6)

4.e3 Nbd7 5.h3 Bh5 6.d5 e5 7.de6 fe6 +=.

4.e3 e6 5.c4 d5 6.c5 Be7 7.Bb5 Nbd7 =.

4.Bg5 a5 5.b5 Ne4 6.Bh4 d5 7.e3 g5 =.

4.Bg5 Ne4 5.Bh4 Qd7 6.e3 d5 7.c4 e6 =.

4.h3 Bf5 5.g4 Bg6 6.Bg2 e6 7.a3 c6 =.

4.Bb2 Bg7 5.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.d4).

4.Bb2 Bg7 5.Nbd2 Nd5 6.a3+= Nd7 (6...0-0 7.c4 Nb6 8.Qb3+=) 7.e3 c5 8.c4 cb4?? (better 8...N5b6+=) 9.cd5+- ba3 10.Ra3 0-0 11.Bc4 a6 12.0-0 b5 (12...Rb8 13.Qb3+-) 13.Bb5! Qb6 (13...ab5 14.Ra8 Pinning (14.Ra8 Deflection)) 14.Qb3 (better 14.Bc6 A) 14...Qb2?? 15.Rb3 (15.Ba8?! Qa3 16.Qc2 Nf6+=) 15...Rb8 16.Rb2 Rb2 17.Qa4+-; B) 14...Rb8 15.Bc3 Nf6+-) 14...Qb5 (14...Rb8 15.Bc6+-) 15.Qb5 ab5 16.Ra8 Bb7 17.Rf8 (17.Ra7!? Rb8+-) 17...Kf8 18.Rc1 Bd5 (18...Nb6 19.Rc7 Bd5 20.e4+-) 19.Kf1 (19.Rc8) 19...b4 (19...Nb6 20.e4 Ba8 21.Rc7+-) 20.Ke1 (20.Rc8) 20...b3 (20...Nc5 21.Rc2 b3 22.Rc3+- (22.dc5?! bc2 23.Bc1 dc5+/-)) 21.Rc3 (21.Rc8) 21...Nb6 (21...f5 22.Rc8 Kf7 23.Ng5 Kf6 24.Nh7 Kf7 25.Ng5 Kf6 26.e4 Kg5 27.ed5+-) 22.Nb3 (22.e4 Be6 23.Nb3 Na4+-) 22...Na4 (22...h6+-) 23.Rc8 1-0. Triffon (2010) – tibbo, Rated Bullet game, lichess.org, 2014. (=1.d4 (A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems) 1...d6 2.Nf3 Nf6 3.b4 g6)

4.Bb2 Bg7 5.e3 0-0 6.Be2 e5 7.de5 Nfd7 8.c4 a5 9.b5 Ne5 10.Ne5 de5 11.Nc3 Be6 12.Na4 Nd7 13.Qc2 Qg5 14.Bf3 Rab8 15.c5 Rfd8 16.Bc3 b6 17.c6 Nf8 18.Nb2 e4 19.Be4 Bc3 20.Qc3 Qb5 21.a4 Qb3 22.Rc1 Rd6 23.Qb3 Bb3 24.Rc3 Bd5 25.Bd5 Rd5 26.Ke2 Ne6 27.Nd3 Rbd8 28.Rb1 f5 29.Rb2 f4 30.Rbc2 fe3 31.fe3 Rg5 32.g3 Rgd5 33.Nf4 R5d6 34.Ne6 Re6 35.Rc4 Rdd6 36.R2c3 Kf7 37.Kf3 Ke7 38.Rh4 h5 39.Rhc4 Kf7 40.Rf4 Ke7 41.Rfc4 Kf6 42.Rf4 Ke7 ½–½. Skalicka – Esposito, Quilmes 1945.

4.Nc3 Bg7 5.e4 (5.Bg5 h6 (5...Bg4 6.e4 0-0 7.Rb1 d5 8.Bd3 de4 9.Ne4=) 6.Bf6 Bf6 7.e3 0-0 8.Be2 Bg7 9.0-0=; 5.Rb1 Bf5 6.e3 d5 7.Bd3 Ne4 8.Be4 Be4 9.Ne4+=) 5...Bg4 (5...0-0 6.Be3= (6.Rb1) 6...Ng4 7.Bg5 h6 8.Bh4 Nf6 9.Rb1=; 5...c5 6.dc5 Nfd7 7.Bb2 dc5 8.b5 Qa5 9.Qd2=) 6.h3+= Bf3 (6...Be6 7.Rb1 h6 8.Bd3 c6 9.0-0+=) 7.Qf3 0-0 (7...Nfd7 8.Ne2 c5 9.bc5=) 8.Be3 Nc6 (8...c5 9.e5=) 9.b5 Nb4 10.0-0-0 d5 11.a3 (better 11.e5!? Ne4 12.Kb2 Nc3 13.Kc3+/-) 11...de4=+ 12.Ne4 Ne4 13.Qe4 Nd5 14.Bc4 Nc3 15.Qb7 Nd1 16.Rd1 Qd6 17.Kb2 (17.Qa6 c6 18.bc6=+ (18.Qc6?? Qa3 19.Kb1 Rac8 20.Bf7 Kf7 21.Qd5 Ke8-+)) 17...a6 18.Qd5 (18.Qc6 ab5 19.Qd6 ed6-+ (19...cd6?! 20.Bb5 Rfb8 21.c4=+)) 18...ab5 19.Qd6 cd6 (better 19...ed6!? 20.Bd5 Ra6-+) 20.Bb5=+ Rfb8 21.c4 d5 22.Ka2 (22.cd5 Rb5) 22...Ra7 (22...Rb6=+) 23.Bf4 (better 23.Rc1!?=) 23...Rba8-/+ 24.Bc1 Ra5 (better 24...dc4!? 25.Bc4 Rc8-/+) 25.Bc6= Rc8 (25...dc4!? 26.Ba8 Ra8=) 26.cd5+= (worse 26.Bd5 e6 27.Be4 Rc4=+) 26...e6 27.Bd7 Rc2 (27...Rc1 28.Rc1 Rd5 29.Rc8 Bf8 30.Bc6 Rd4 31.a4+=) 28.Kb3+/- Rc7 (28...Rc1 29.Rc1 Rd5 30.Rc8 Bf8 31.Bc6 Rd4 32.a4+/-) 29.de6 fe6? (better 29...Ra6!? 30.ef7 Kf7+-) 30.Be6+- Kh8 31.Bd2 Rb5 32.Bb4 Rcb7 (32...Bf8 33.d5 Bd6 34.Rd4+-) 33.d5 Bf8 (33...Bf6 34.d6+-) 34.d6 Re5 (34...Rb8 35.Kc4 R5b6 36.Bc3 Bg7 37.Ba5 Rc6 38.Kd5+-) 35.Bc8 (35.d7 Be7 36.d8Q Bd8 37.Rd8 Kg7+-) 35...Rb8 (35...Rb6 36.d7 Be7 37.Kc2 Re2 38.Kd3 Rb4 39.Ke2 Rb2 40.Kf1+-) 36.d7 Be7 37.d8Q (37.Kc3 Bd8 38.Bd6 Rbb5+-) 37...Bd8 38.Rd8 Kg7 39.Rd7 Kh6 40.Ba6 Re2 (40...Rf5+-) 41.Be2 (41.Be2 Kg5 42.Rh7+-) 1-0. marekt - pilaff3, GameColony.com, 2002.

4.c4 Bg7 5.Bb2 0-0 6.Nbd2 a5 7.a3 e5 8.de5! (8.d5) 8...Nfd7 9.e3 Nc6 10.Qb3 ab4 11.ab4 Ra1 12.Ba1 Nce5 13.Bc3 c5?! 14.Be2! Qf6 15.Ne4 Qe7 16.Be5! Ne5 17.bc5 dc5 18.0-0 Bg4 19.Ned2 Nc6 20.Rd1 Nb4 21.Nb1 Qf6 22.Na3 Ra8 23.Nd4 Be2 24.Ne2 Qb2 25.Qb2 Bb2 26.Nb5 Nc6 27.Rb1 Ra4 28.Ng3 Be5 29.f4 Bg7 30.Nd6 Rb4 31.Rc1 f5 32.e4 Bd4 33.Kh1 Be3 34.Rf1 Na5 35.ef5 Nc4 36.Nc4 Rc4 37.fg6 hg6 38.f5 g5 39.f6 Rc1 40.Rc1 Bc1 41.Ne4 c4 42.g4 Bf4 43.Kg2 b5 44.Kf3 b4 45.h4 c3 46.hg5 c2 47.Kf4 c1Q 48.Kf5 Qc8 49.Kf4 b3 50.g6 b2 0–1. Santasiere – D Bronstein, USA–URS radio–m 1945.

4.c4 Bg7 5.Nc3 0-0 6.e4 c5 7.bc5 dc5 8.e5 Ng4 9.h3 (9.Bf4 Nc6–/+ (9...Qa5 10.Qd2 cd4 11.Nd4 Be5 12.Be5 Qe5 13.Be2 Rd8+=) 10.dc5 Qa5 11.Qd2 Nge5 12.Ne5 Ne5 13.Nd5 Qc5–/+; 9.d5 Nd7 (9...Ne5 10.Ne5 Be5 11.Bb2 Re8 12.Be2 e6 13.Qd2 ed5–/+) 10.Be2 (10.Bb2 Nde5 11.Be2 Nf3 12.Bf3 Ne5 13.Be2 Bf5–/+; 10.Qb3 Nde5 11.Ne5 Be5 12.h3 Nf6 13.Bb2 e6–/+; 10.Bd2 Nge5 11.Ne5 Ne5 12.Be2 Bf5 13.0-0 b6–/+) 10...Nge5 11.Bb2 e6 12.Ne5 Be5 13.Qd2 Nf6–/+; 9.dc5 Qa5 10.Qb3 (10.Qd2 Ne5 11.Ne5 Be5 12.Nd5 Qd2 13.Bd2 Ba1–+; 10.Bd2 Qc5 11.Qe2 Nc6 12.Ne4 Qa3 13.Bc1 Qa4–/+) 10...Ne5 11.Ne5 Be5 12.Bd2 Qc5 13.Rd1 Rd8–/+; 9.Nd5 cd4 10.Nd4 Be5 11.Rb1 e6 12.Ne3 Nf2 13.Kf2 Bd4–+) 9...cd4 10.hg4 dc3 11.Bh6 (11.Qc2!?–/+ Nc6 12.Bh6 Bh6 13.Rh6 Qa5–+) 11...Qd1 12.Rd1 Bg4 (12...Bh6 13.Rh6 Bg4–+) 13.Rc1 (13.Bg7 Kg7–+) 13...Bf3 (13...Bh6–+) 14.gf3 Nc6 15.f4 f6 16.e6 (16.Rc3 fe5 17.Rch3 Bh6 18.Rh6 Rf7–+) 16...Bh6–+ 17.Rh6 Nd4 18.Rc3 Ne6 19.Rh4 (19.f5 Nf4–+) 19...Nd4 (19...Nc5 20.Rch3 Rf7 21.Bg2–+) 20.Bg2 Rab8 (20...e6 21.Bb7 Rab8 22.Be4–+) 21.c5 (21.Rd3 Nf5 22.Rhh3 Rfc8–+) 21...Kg7 (21...Rfd8!? 22.f5 g5 23.Rh2 Nf5 24.Ra3–+) 22.f5–/+ Nf5 23.Ra4 a6 24.Rb4 Rfc8 (24...Rfd8 25.Rb7 Rb7 26.Bb7+=) 25.Rb7+= Rb7 26.Bb7 Rc7 27.Ba6 h5 28.a4 g5 29.Bd3 Nd4 30.a5 h4 31.a6 f5 32.Ra3 h3–+ 33.Kf1 Rc5 34.Ra1 Rc8 35.Kg1 e5 36.a7 Ra8 37.Ra6 g4 38.Bc4 e4 39.Bd5+= Nf3 40.Kh1 Rc8 41.Rc6 e3?? 42.Rc8+– ef2 43.Rc1 Ne1–+ 44.Rc7 Kh6 45.Rc6 Kg5 46.a8Q f1Q 47.Kh2 g3! 48.Kg3 Qf4 (48...Qf4 49.Kh3 Qh4#) 0–1. Ivanets,Vladimir – Loskutov,Oleg, It (cat.4), XI–XII, Moscow (Russia), 1995. (=1.Nf3 Nf6 2.b4 d6 3.d4 g6)

4.Nbd2 e5 5.e4= ed4 6.Nd4 d5 7.e5 Qe7 8.f4 Nh5 9.N2f3 Qb4 =.

4.Nbd2 e5 5.de5 de5 6.Bb2 Bb4 7.Ne5 Ne4 8.c3 Bc3 9.Bc3 Nc3 =.

4.Nbd2 Bg7 5.e4 e5 (5...0-0 6.c3 (6.Bd3 c5 7.c3 cd4 8.cd4 Nh5 9.Nb3 d5=) 6...c5 7.Bd3 cd4 8.cd4 Nh5 9.Nb3 d5=; 5...c5 6.c3 0-0 7.Bd3 cd4 8.cd4 Nh5 9.Nb3 d5=) 6.c3 (6.de5 de5 7.Bc4 Qd6 8.0-0 Qb4 9.Ne5 0-0+=) 6...0-0 (6...ed4 7.cd4 Qe7 8.Bd3 Ne4 9.Ne4 d5=) 7.de5 de5 (7...Ng4 8.ed6 Bc3 9.Rb1 Qd6=) 8.Bc4 Qe7 (8...Nbd7 9.0-0+= Nb6=) 9.Qb3 (9.0-0 Nbd7+=) 9...Nbd7 (9...Bg4=) 10.Ba3 h6 11.0-0 c6 12.b5 (12.Rad1 Rd8=) 12...c5= 13.Rfe1 Nb6 14.Bf1 Bg4 15.Qc2 Rfd8 16.h3 Bd7 17.Nb3 Rac8 18.Rad1 Nh5 19.g3 Bf8 (19...Qf6 20.Nc5 Qf3 21.Re3=) 20.Nh2 (20.c4 Qe6=) 20...Qe8 (20...Ng7 21.Qc1 Ne6 22.Qe3=) 21.c4 Bb5 22.Rd8 Qd8 23.Bb2 Bd7 24.Be5 Qe7 25.Bb2 Ng7 26.Qd2 Na4 (26...Ne8 27.Qa5=) 27.Ba1 (better is 27.Bf6 Qe6 28.Ng4+=) 27...h5? (27...Ne8!?=) 28.Qh6+/– Be8 29.Nf3 f6 30.e5 Nf5 31.Qd2 (31.ef6 Qf6 32.Qh5 Qa1 33.Qf5 gf5 34.Na1 Nc3+/–) 31...fe5 32.Re5 Qc7 33.Rd5 (33.Ng5 Nb6+/–) 33...Nb6 (better is 33...Bc6=) 34.Ng5?? (better is 34.Rf5 gf5 35.Qg5 Bg7 36.Nc5+– (36.Qf5?! Ba1 37.Na1 Qf7 38.Qg5 Kf8=)) 34...Nd5–/+ 35.cd5 (35.Qd5 Bf7 36.Bg2 Rd8 37.Nf7 Rd5 38.Bd5 Qf7=) 35...b5 36.Ne6 Qf7 37.Nf8 Qf8–/+ 38.Bg2 Bf7 39.g4 hg4 40.hg4 Nd6 41.Qc3= Qh6 42.g5 Qh7 43.Qf6 Be8?? 44.Kf1 Ne4?? 45.Qf4 Bd7 46.Nc5?? Rc5 47.Kg1?? Nc3 (47...Nc3 48.Qf6 Qg7 49.Qg7 Kg7–+) 0–1. Zagema,Wieb – Sziva,Erika, Leeuwarden, 1993. (=1.Nf3 Nf6 2.b4 d6 3.d4 g6)

4.e3 a5 5.ba5 Bg7 6.Bd2 0-0 7.Bd3 e5 8.de5 de5 9.e4 Nc6 10.Bc3 Qd6 11.0-0 Qc5 12.Qc1 Bg4 13.Qb2 Bf3 14.gf3 Nd7 15.Bb5 Rfd8 16.Rd1 Nd4 17.Bd7 Rd7 18.Bd4 Rd4 19.Nc3 Ra5 20.a4 c6 21.Rd3 Bf6 22.Rb1 Bh4 23.Rf1 b6 24.Kg2 h6 25.Kh3 Bg5 26.Rb1 Bd2 27.Ne2 Rb4 28.Rb3 Rba4 29.Rb6 Qf2 30.Ng3 Kg7 31.Rb7 Ra3 32.Rf1 Qc5 33.Rd1 Bg5 34.f4 Bf4 35.Rdd7 Kf6 36.Qb6 Qb6 37.Rb6 Rc5 38.Rd6 Kg5 39.Rdc6 Rc6 40.Rc6 h5 41.c3 Ra2 42.Rb6 h4 43.Nf1 Rf2 44.Rb1 Kh5 45.Ng3 hg3 46.hg3 Rf3 47.Rg1 Rc3 48.Rg2 g5 49.Kh2 Rg3! 50.Rg3 Bg3 51.Kg3 g4 52.Kg2 f5 53.ef5 0–1. GLChess211 – Gandalf432f, computer chess game, 2000.

4.e4 Ne4 5.Bd3 d5 6.Qe2=+.

4.e4 e5 5.g3 (5.de5!? Ne4 6.Bd3+=) 5...Ne4 6.Qe2 (6.de5!? f5 7.c3=+) 6...f5 7.g4 Nc6 8.gf5 Bf5 9.h4 (9.d5 Ne7 10.Nh4 Nf6 11.Nf5 gf5–/+) 9...Nd4 (9...d5 10.b5 Nb4 11.Ne5 Nc2 12.Qc2 Ng3=) 10.Bg5?? (better 10.Nd4 ed4 11.f3=+) 10...Be7 (better 10...Nc2 11.Qc2 Ng5–+) 11.Bh6?? (better 11.Nd4 ed4 12.Qb5 Bd7 13.Qb7 Ng5 14.hg5 Bg5 15.Bh3–+) 11...Nc3! 12.Nc3 Nc2 (12...Ne2 13.Be2 Bc2 14.Rc1–+) 13.Qc2 (13.Kd2 Na1 14.Bh3 Bh3 15.Rh3–+) 13...Bc2 14.Nd2 Qd7 15.Ke2 (15.Rc1 Bf5–+) 15...d5 (15...Qg4 16.Ke1 Qd4 17.Rc1 Qc3 18.Rh3–+) 16.Bh3 (16.Rc1 d4 17.Nde4–+) 16...Qb5 (better 16...Qc6 17.Nd1 Bb4–+) 17.Ke3 (better 17.Nb5 Kd8 18.Rac1+–) 17...Qb4 (17...Qd3) 18.a3 Qc3 19.Ke2 Bh4 (19...Bd3 20.Kf3 Bf1 21.Kg4 Be2 22.f3 Qd4 23.Ne4 Qe4 24.Kg3 Qf3 25.Kh2 Qf2 26.Bg2 Bd6 27.Be3 e4 28.Bf4 Bf4 29.Kh3 Qg3) 20.Bd7 Kd7 21.Nb3 Qd3 (21...Raf8 22.Nc5 Qc5 23.Kd2 Rf2 24.Kc1 Bb3 25.Kb1 Qc2) 22.Ke1 Bb3 (22...Bf2 23.Kf2 Raf8 24.Ke1 Qc3 25.Ke2 Bd3 26.Kd1 Qc2 27.Ke1 Qe2) 23.Rh3 Qh3 24.Kd2 Bf2 (24...Raf8 25.f3 Qh2 26.Kc3 Qc2 27.Kb4 Be7 28.Ka5 Qc5) 25.Rf1 (25.Re1 Qh6 26.Kd3 Be1 27.Ke2 Qd2 28.Kf3 Bd1) 25...Qh6 26.Kc3 Qe3 (26...Qh3 27.Kb2 Bd4 28.Kc1 Qf1 29.Kd2 Qd1) 27.Kb4 (27.Kb2 Qd4 28.Kb3 Qc4 29.Kb2 Bd4 30.Kb1 Qb3 31.Kc1 Be3) 27...Qc5 (27...a5 28.Kb5 c6) 28.Kb3 Qc4 29.Kb2 Qf1 (29...Bd4 30.Kb1 Qb3 31.Kc1 Be3) 30.Kc2 Rhf8 31.Kc3 (31.Kd2 Be1 32.Kc1 Rf2 33.Kd1 Bc3) 31...Bd4 32.Kb4 (32.Kc2 Qe2 33.Kc1 Rf1) 32...c5 (32...Qc4 33.Ka5 b6) 33.Ka5 (33.Ka4 Qc4 34.Ka5 b6) 33...b6 (33...Qa6) 34.Ka4 b5 (34...Qc4) 35.Ka5 b4! 36.ab4 (36.a4 Qf6 37.Kb5 Qb6) 36...cb4 (36...Qa1 37.Kb5 Rab8) 37.Kb4 (37.Ka4 Qd1 38.Kb4 Rab8 39.Ka3 Qb3) 37...Qb1 (37...Rab8 38.Ka4 Qa6) 38.Ka5 (38.Ka4 Qa2 39.Kb4 Rab8) 38...Qb6 (38...Qa2 39.Kb4 Rab8) 39.Ka4 Rf3 (39...Rfb8 40.Ka3 Qb3) ½–½. metzgk5 – bf591715, lichess.org, 2018.

5.c4 e5 6.de5 Ng4 7.Bb2 Nc6 8.Qb3 Nce5 (< 8...de5 9.h3 Nf6 10.b5+/– (10.Be5? Ne5 11.Ne5 Ne4 12.Qa4 c6 13.Nc6 Bc3 14.Ke2 Qf6 15.Ne5 Kf8–+); 8...Nge5?! 9.Ne5 de5 10.b5=) 9.Nbd2 Qf6 10.Bd4 0-0 11.Be2 b6 12.0-0 c5 13.Ne5 Ne5 14.Bb2 Be6? (14...Bf5 15.g4 Be6 16.f4+–) 15.a3 (15.f4 Nf3 16.Bf3 (< 16.Rf3 Qb2 17.Qb2 Bb2=+) 16...Qb2 17.Qb2 Bb2 18.Rab1+=) 15...Rad8 16.Rab1 Qe7 17.f4 Ng4 18.Bg7 Kg7 19.e4 Rfe8 20.Rbe1 Qf6 21.e5 de5 22.Ne4 Qe7 23.bc5 Qc7 24.cb6 Qb6 25.Qb6 ab6 26.Bg4 Bg4 27.h3 Bc8 28.Rd1 Rd1 29.Rd1 ef4 30.Nd6 Rf8 ½–½. dominick1952 (2025) – MirceaH (1970), internet, 2006.

5.Bd3 b6 6.0-0+= Bb7 (6...c5 7.c3+=) 7.Nbd2 0-0 8.e4 e6 (8...a5 9.b5+=) 9.Rb1 Re8 (9...Nbd7 10.Re1+=) 10.c3 Nbd7 11.Re1 e5 (11...Qe7 12.Qc2+=) 12.d5 a5 (12...c6 13.Nc4 Qc7 14.dc6 Bc6 15.b5+=) 13.Qc2+/– Qe7 14.Nc4 ab4 15.cb4 Nh5 (15...Rec8 16.b5+/–) 16.a4 Rec8 (16...Nf4 17.Bf4 ef4 18.a5+/–) 17.a5 b5 18.Na3 c6 (18...f5 19.Nb5 (19.Bb5?! fe4 20.Bg5 Nhf6 21.Re4 Bd5+=) 19...fe4 20.Be4+/–) 19.dc6 Bc6 20.Qe2 Rcb8 (20...Ndf6!? 21.Nb5 d5+–) 21.Bb5+– Bb5 22.Nb5 Rb7 23.Rd1 Ra6 24.Nc7 Ra5 25.Bg5 f6 26.ba5 Rc7 27.Be3 Nc5 28.Qc4 Qf7 29.Qf7 Kf7 30.Bc5 dc5 31.a6 Ra7 32.Rb7 (32...Ke6 33.Ra7+–) 1–0. kamret (2170) – noodles (1920), GameColony.com, 2003.

5.Bd3 e5 6.de5 de5 7.e4 =.

5.Bd3 e5 6.de5 de5 7.Ne5 Ng4 8.Ng4 Ba1 –/+.

5.Be2 0-0 6.0-0 c5 7.bc5= dc5 8.c3 Nc6 9.a4 b6 10.Ba3 Nd7 (10...Bf5!?+=) 11.Nbd2= Bb7 12.Qb1 Qc7 13.Rc1 Na5 14.Nb3 Nb3 15.Qb3 Rab8 16.a5 (16.Bc4!?=) 16...ba5+= 17.Qa2 Rfc8 18.Ng5 e6 19.Bb5 Bc6 20.Bc4 Qd8 (20...Bf6!? 21.f4 a4–/+) 21.f4+= h6 22.Nf7 Kf7 23.Be6 Kf6 (better is 23...Kf8+=) 24.d5+/– Ba4 25.e4 Ke7 26.Rab1 (26.e5!?+=) 26...Rb1= 27.Rb1 Rb8 (27...Bc3 28.Bb2 Bb2 29.Rb2= (worse is 29.Qb2 Qh8 30.e5 Rb8+=)) 28.e5 Ke8 (28...Kf8 29.Rf1 Qc7 30.Qf2+=) 29.d6 (29.Bd7 Kd7 30.Bc5 Rb1 31.Qb1 Qc7+=) 29...c4 (better is 29...Kf8=) 30.Bd7 (better is 30.Kf1 Ne5 31.fe5 Be5 32.Ke2+=) 30...Bd7–/+ (30...Kd7 31.e6 Ke6 32.Qc4 Kf6 33.Qd4 Kf5 34.Qd5 Kf6 35.Re1+–) 31.Rb8 Qb8 32.Qc4 Qb1 33.Kf2 Qc2 34.Kg3 Qf5 ½–½. Mrkonjic,Nenad (2360) – Majeric,Zoran (2270), The International Chess Tournament, 2011. (=1.d4 Nf6 2.Nf3 d6 3.b4 g6 4.e3 Bg7)

5.Be2 0-0 6.0-0 Nc6 7.b5 Nb8 8.Bb2 c5 9.dc5 dc5 10.Nbd2 b6 11.Nc4 Bb7 12.a3 (12.a4 Nbd7+=) 12...Nbd7 13.Qd3 Be4 (13...a6 14.ba6 Ra6 15.Rfd1=) 14.Qb3+= Qc7 15.Ncd2 Bd5 16.c4 Bb7 17.Rfd1 Rad8 18.Qa4 Ba8 19.Bd3 Rfe8 20.Rab1 (20.Qc2 Bb7+=) 20...Nf8 (20...e5 21.e4=) 21.Be5+= Qd7 22.Rb3 Ng4 (22...a5 23.h3+=) 23.Bg7+= Kg7 24.h3 Nf6 25.Be2 Qc7 26.Rd3 Rd3 27.Bd3 Rd8 28.Qc2 Ne6 29.Qc3 Kg8 30.Ne5 Qb7 31.Nc6 Rd7 32.Nf3 a6 33.Ne7+– Re7 34.Qf6 (34…Rc7 35.ba6 Qa6 36.Ng5+–) 1–0. market (1700) – spank_thru (1680), GameColony.com, 2002.

4.Bb2 e5 5.a4 g6 (5...e4 6.Nd4+=) 6.a5 a6 7.c4 Bg7 8.Qb3 0-0 9.d3 Re8 10.Nbd2 c6 11.e4 Nf8 12.Be2 Nh5 13.g3 h6 14.Nh4 Nf6 15.Ng2 Bh3 16.Ne3 Qd7 17.f3 h5 18.Bf1 Bh6 19.Bh3 Qh3 20.Ndf1 (better is 20.d4+=) 20...Ne6–/+ 21.Kf2 Nd7 22.Bc3 Nd4 23.Qb2 Bg7 24.Nc2 Nc2 25.Qc2 Qe6 26.Qe2 d5 27.c5 Rad8 28.Rd1 Nf8 29.Nd2 Qc8 30.Nb3 Ne6 31.Qb2 Nc7 32.Bd2 de4 33.de4 Rd3 (33...Qh3 34.Qa1=) 34.Be3 Qd7 35.Ke2 Rd8 36.Qc2 Rd1 37.Rd1 Qd1 38.Qd1 Rd1 39.Kd1 Kf8 40.Nd2 Nb5 41.Kc2 ½–½. Buck,K1 (1730) – Grabitz,G (2065), Dresden GER, 2013.

4.d4 b6 5.Nbd2 (5.Bb5 Bb7+=) 5...g6 (5...e5 6.Bb5 Bb7 7.de5=) 6.c4 (6.c3 Bg7=) 6...Bg7 7.Bb2 (7.Bd3 c5=) 7...c5 8.bc5 (8.Be2 0-0=) 8...dc5 (8...bc5 9.Rb1=) 9.d5 0-0 10.e4 Re8 11.Rb1 (11.Qc2 e6 12.0-0-0 ed5 13.cd5 a6=) 11...Bb7 (11...e6 12.d6=) 12.Bd3+= e6 13.0-0 Qc7 (13...ed5 14.cd5 Rc8 15.Nc4+/-) 14.h3 (14.Qc2 e5+=) 14...Rad8 15.Qc2 Nb8 (15...e5 16.a3+=) 16.a3 (16.e5 Nh5 17.d6 Qd7+=) 16...Qd7 (16...ed5 17.cd5 Nbd7 18.Nc4+/-) 17.Ba1 (17.Rfd1 ed5 18.cd5 Ba6+/-) 17...Re7 (17...ed5 18.cd5 Qe7 19.Qa4+/-) 18.Rfe1 (better 18.Bf6 Bf6 19.e5+=) 18...Rde8?? (18...ed5 19.cd5 Qe8 20.Nc4+/-) 19.e5 (19.d6 Qd6 20.e5 Qd8 21.ef6 Rd7 22.Bg6 hg6 23.fg7 Nc6+-) 19...Nh5?? (better 19...Nd5 20.cd5 ed5+/-) 20.d6+- Nf4 21.Bg6! (21.de7?! Nd3 22.Red1 Nf4+/-) 21...fg6 (21...Ng6 22.de7) 22.de7 Qe7 23.Ne4 (23.Red1 Rf8 24.Rb3 Qc7+/-) 23...Rf8 24.Qc3 Be4 25.Re4 Qf7 26.Qc2 (better 26.Re3!?+/-) 26...Nh3= 27.gh3 Deflection from f3 (27.Kf1 Nf4=) 27...Qf3 28.Re3 (28.Rb3 Qf5=) 28...Qh5 (28...Qf4 29.Rd1=) 29.Qe4 Qg5 30.Qg2 (30.Rg3 Qf5 31.Qf5 Rf5= (worse 31...ef5 32.f4+/-)) 30...Qf5 31.Rf1 Bh6 32.Rb3 (32.Re4 Nd7=) 32...Qf7 (32...Bf4 33.Rd1=) 33.Qg4 (33.Rd3 Bg7+=) 33...Nc6 (33...Nd7 34.Rd3 Bf4 35.Rd6 Ne5 36.Be5 Be5 37.Re6=) 34.Rd3 (34.Qe4 Na5 35.Rc3 Qf4 36.Qf4 Rf4=+) 34...Bg7 (34...Bf4 35.Rd6 Ne5 36.Be5 Be5 37.Re6=) 35.Rd6 Attacking the isolated pawn on e6 (better 35.Qe4 Qf5 36.Qf5 Rf5 37.Rd6=+) 35...Be5?? (better 35...Ne5 36.Be5 Be5 37.Re6 Bd4=) 36.Rc6+- Ba1 37.Ra1 (37.Ra1 Qf2 38.Kh1 Qf3 39.Qf3 Rf3 40.Kg2+-) 1-0. Dvorak,Tomas - Michalek,Michal, Czech Fed-ch U16, 1997.

4.Bb2 e6 5.c4 Nc6 6.a3 a5 7.b5 Ne5 8.Be2 Bf3 9.gf3 c6 10.f4 Ng6 11.bc6 bc6 12.Qa4 Rc8 13.Bc3 Ne4 14.Qa5 Qh4 15.0-0 Qh3 16.Qh5 Nh4 17.Qg4 Qg4 18.Bg4 d5 19.Rc1 Be7 20.Bd4 (20.Bg7? Rg8 21.f3 Rg7–+) 20...0-0 21.d3 Nf6 22.Be2 Ra8 23.a4 Nf5 24.Bb2 Rfb8 25.Ra2 Rb7 26.Nd2 Rb2 27.Rb2 Ba3 28.Rcb1 Bb2 29.Rb2 Nd7 30.cd5 cd5 31.Ra2 d4 32.Nc4 Nc5 33.a5 g6 34.Rb2 Ra7 35.Rb5 Rc7 36.Kf1 h5 37.e4 Ne7 38.Nd6 Rc6 39.Rb8 Kg7 40.Rb6 Nd7 41.Rc6 Nc6 42.Nb7 Nb4 43.Ke1 Kf6 44.Kd2 h4 45.Bd1 1–0. Liptak,Tibor – Kota,Istvan, HUN–ch E355 corr, 1999.

4.h3 Bf3 5.Qf3 c6 6.Bb2 e5 7.Be2 Be7 8.b5 e4 9.Qf5 Qd7 10.Qd7 Nbd7 11.d3 0-0-0 12.bc6 bc6 13.de4 Ne4 14.Bg7 Rhg8 15.Bd4 Rg2? 16.Bf3+– Rf2 17.Be4 d5? 18.Kf2 de4 19.Ba7 f5 20.Nc3 Kb7 21.Bd4 c5 22.Rab1 Kc6 23.Bg7 Rg8 24.Rhg1 Bh4 25.Ke2 Nb6 26.Rbf1 Nc4 27.Rf5 Nd6 28.Rf4 Bf6 29.Rf6 (29...Kc7 30.Rh6+–) 1–0. kamret (2230) – Blixtanders (1645), GameColony.com, 2003.

4.Bb2 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d6).

4.c4 Bg7 5.b5 0-0 6.Be2 Nfd7 7.Nc3 c6 8.Bb2 cb5 9.cb5 Nc5 10.Qc2 a6 11.0-0 a5 12.a4 b6 13.Bd3 Nbd7 14.Ne4 Bb2 15.Qb2 Nd3 16.Qc3 N3c5 17.Neg5 Bb7 18.Nd4 e5 19.Nc6 Qg5 20.f4 ef4 21.Rf4 Ne5 22.d4 Nc6 23.bc6 Bc6 24.Qd2 Ne6 25.Rf2 Bd7 26.d5 Nc5 27.e4 Qd2 28.Rd2 Ne4 29.Rc2 Rac8 30.Rc8 Rc8 31.Re1 Nc3 32.Re7 Ba4 33.Rf7 0–1. axtur777 – the_emrys, lichess.org, 2019.

4.d4 Bg7 5.Bd3 Bg4 6.h3 Be6 7.e4 c6 8.0-0 0-0 9.Be3 Nbd7 10.Ng5 Ne8 (10...b5 11.Ne6 fe6 12.c3+/–) 11.c3 h6 (better is 11...Nc7!?+/–) 12.Ne6+– fe6 13.Qg4 Rf6 14.f4 Qc7? (better is 14...a5+–) 15.e5 h5 16.Qh4 (16.Qg3!? de5 17.de5 Ne5 18.fe5 Rf1 19.Kf1 Qe5 20.Qe5 Be5 21.Bg6 Nf6+–) 16...de5 17.de5 Ne5 18.fe5 Qe5 (18...Rf1 19.Kf1 Qe5 20.Bd4+–) 19.Re1 Qd6 20.Bc2 Nc7 (20...a5 21.Nd2 Rf8 22.Nc4+–) 21.Nd2 Nd5 22.Ne4 Ne3 23.Nd6 Nc2 24.Nb7 Na1 25.Ra1 Raf8 26.Nc5 Rf4 27.Qg3 Bc3 28.Qc3 (28...R8f6 29.Nd3+–) 1–0. orane (2100) – KHUFU (2150), Caissa.com, 2004.

3.a3 d6 4.g3 (4.Nc3 e4 A) 5.Ng1 d5 (5...a5 6.b5 d5 7.d3 Bc5 8.e3 0-0) 6.d3 a5 7.b5 Bc5 8.d4 Be7; B) 5.Nd4 c5+= 6.Nb3 cb4 7.ab4 d5 8.Ba3 Bd6; 4.d3 A) 4...a5 5.b5 Be7 6.e4 0-0 7.Be2 d5 8.0-0 de4; B) 4...Be6 5.e4 Be7 (5...a5 6.b5 Be7 7.Be2 0-0 8.0-0 d5; 5...Nc6 6.Be2 Be7 7.b5 Nb8 8.Nc3 a6) 6.Be2 a5 7.b5 0-0 8.0-0 c6; C) 4...Be7 5.e4 0-0 (5...a5 6.b5 a4 7.Be2 0-0 8.Nc3 Re8) 6.Be2 a5 7.b5 d5 8.0-0 de4) 4...g6 (4...e4 5.Nd4+= c5 6.Nb3 Be6 7.c3 Qd7 8.Ra2 a5) 5.Bg2 (5.d3 Bg7 6.Bg2 0-0 7.0-0 Re8 8.Bb2 a5) 5...Bg7 (5...e4 6.Nd4 Bg7 7.d3 c5 8.Nb3 Qe7) 6.Bb2 (6.0-0 e4 7.Nd4 0-0 8.d3 a5) 6...0-0 (6...e4 7.Nd4 c5 8.Nb3 c4) 7.0-0 Bd7 (7...Qe7 8.d3= a5; 7...e4 8.Nd4 c5) 8.c4 Qc8 (8...Re8=) 9.d3 Bh3 10.Nbd2 Bg2 11.Kg2 Nh5 12.Qb3 Qg4 13.e3 Nd7 14.Rac1 c5 15.Rfe1 h6 16.Rb1 b6 17.Qc2 Rfe8 18.Bc3 (18.h3 Qe6=) 18...Qe6 19.e4 f5 20.Qd1 f4 21.Nh4 Rf8 22.h3 Kh7 23.Qg4 Qf7 24.Rf1 Rg8 25.Qd1 Bf6 26.Nhf3 g5 (26...a6 27.Qa4=) 27.g4+= Ng7 28.Rh1 Ne6 29.Qa4 Kg7 30.Qc6 Qe7 31.Rbg1 Rgc8 32.Qa4 Kf7 33.Rh2 Rg8 34.Qd1 Rg7 35.Rgh1 Rag8 36.Nb1 Nc7 37.Bb2 a6 38.Nc3 Qe8 39.Nd2 Qe7 40.Nd5 Nd5= 41.ed5 e4 42.Bf6+/– f3 43.Kf1 Nf6 44.de4 Ne4 45.Qf3 Nf6 46.Kg2 Re8 ½–½. Biaggi – Vergagni, Buenos Aires, 1993. (=1.Nf3 Nf6 2.b4 e5)

3.c3 (--> 1.b4 e5 2.c3 Nf6 3.Nf3).

3.e4 Bb4 4.c3 Be7 5.Qa4 0-0 6.Ne5 Re8 7.d3 d5 8.Nd2 Bd6 9.f4 de4 10.de4 Nbd7 11.Nd3 Nc5 12.Nc5–/+ Bc5 13.Bb5 c6–+ 14.Be2 Ng4 15.Bg4 Bg4 16.Qc4 Qh4 17.g3 Qh3 18.Qf1 Rad8 19.e5 Qh5 20.Qg2 Re5!! (21.fe5 Qe5 22.Kf1 Qf6 23.Qf3 Bf3 24.Rg1 Bg4 25.Kg2 Qf2 26.Kh1 Qg1#) 0–1. b4_player (2205) – Byleth (2120), GameColony.com, 2003.

3.Ne5 Qe7 4.f4 Ng4 5.Ng4 Qh4 6.Nf2 Qf4 7.g3 Qf6 8.a3 Qa1 9.Nc3 Bb4 10.ab4 Qa6 11.Nfe4 Qe6 12.e3 d5 13.Ng5 Qh6 14.h4 Qh5 15.Nd5 Qd1 16.Kd1 Kd8 17.Nf7 Ke8 18.Nh8 Be6 19.Nc7 Kf8 20.Ne6 Kg8 21.Ng6 hg6 22.Nc7 Nc6 23.Na8 Kf8 24.Nc7 Ke7 25.Ne6 Ke6 26.Bc4 Ke7 27.Ba3 Ke8 28.b5 Kd7 29.bc6 Kd8 30.Be6 Kc7 31.cb7 Kb7 32.Bc5 Kb8 33.c4 Kb7 34.d4 Kc7 35.d5 Kb8 36.e4 Kb7 37.h5 Ka6 38.h6 Ka5 39.h7 Ka4 40.h8Q Kb3 41.Qb8 Kc3 42.Bd4 Kc4 0–1. AleksandrNekhoroshik – Arturchik2012, lichess.org, 2020.

4.Nd4 a5 5.ba5 Nc6 6.Nc6 (6.Bb2 Ra5 7.e3 d5–/+) 6...dc6 7.d4 Ra5 (7...ed3 8.cd3 Qd4 9.Ra2–/+) 8.e3 (8.Nc3 Bd6–/+) 8...Be7 9.c4 Rg5 (9...0-0 10.Nc3–/+) 10.Nc3 0-0 11.Ne2 (11.h4 Rg4–/+) 11...Bg4 12.Rb1 Qa8 (12...b6 13.h3 Rh5 14.Bb2–/+) 13.Qb3 b6 14.Ng3 (14.Nf4 Nh5–/+) 14...Qa5 (better is 14...Bd6!?–+) 15.Bd2–/+ Qa3 16.h3 (16.Qa3!? Ba3 17.Ra1–/+) 16...Qb3–+ 17.Rb3 Be6 (17...Bd7 18.h4 Rg6 19.Bb4 Bb4 20.Rb4–+) 18.Be2–/+ Ra8 19.0-0 b5! 20.h4 (20.cb5 Bb3 Pinning (20...Bb3 Deflection)) 20...Rg6 21.Rc1 (better is 21.Rb2!? bc4 22.Rc1–/+) 21...Ra2–+ 22.d5 (22.Rd1 Bf8 23.Rbb1 bc4 24.Ra1–/+) 22...cd5 23.Bb4 (23.Rd1 bc4 24.Rb8 Bf8 25.Bc4 Rd2 26.Rd2 dc4 27.Ne4–+) 23...bc4 24.Rbb1 c5 25.Bc3 Rg3! 26.Bf6 (26.fg3 Re2 Remove defender) 26...gf6 (26...Re2 27.Be7 h5 28.fg3 Re3 29.Kf2+/–) 27.Bc4 Rg2! 28.Kg2 dc4 29.Rb7 (29.Ra1 Ra1 30.Ra1 f5–+) 29...Bd6 30.Rb6 Rd2 31.h5 (31.Kf1 Rd3–+) 31...Kg7 32.Rg1 (32.Ra6 Kh6–+) 32...Bg4 33.h6 (33.Kh1 f5 34.Rc1 Be5–+) 33...Kh6 34.Rh1 (34.Rd6 Rd6 35.Rc1–+) 34...Kg6 (34...Kg6 35.Rg1 c3 36.Rd6 Rd6–+) 0–1. roy1nc6 (1980) – guides (1880), gameknot.com, 2014.

4.Nd4 a5 5.ba5 d5 6.Bb2 +=.

4.Nd4 c5 5.bc5 Bc5 6.e3 0-0 (6...Bd4 7.ed4 Nc6 8.c3–/+) 7.Nc3 (7.Nb3 Be7+=) 7...Nc6 (7...Bd4 8.ed4 d5 9.Bb2–/+) 8.Nb3+= Bb6 (8...Bd6 9.Bb2+=) 9.Bb2 d5 10.Nb5 (10.Be2 a6+=) 10...Bf5 (10...Ng4 11.h3 Qh4 12.g3–/+) 11.N5d4 Bg6 (11...Bd7 12.Be2+=) 12.Nc6 (12.Be2 Ne5=) 12...bc6 13.c4 (13.Be2 Rb8+=) 13...Rb8 (13...h6 14.Rb1 Rb8 15.Be2+=) 14.Rb1+= Qd6 (14...h6 15.Be2+=) 15.Qc2 Nd7 (15...Bc7 16.Nd4+=) 16.Be2 f6 17.g3 (17.h4 Bf7+=) 17...Nc5 18.Nc5 Bc5 19.0-0 d4 20.ed4 Bd4 21.Bd4 Qd4 22.Rb8 Rb8 23.Rb1 Rb1 (23...Rb6 24.Rb6 ab6 25.a4+=) 24.Qb1 h6 25.Qb4 c5 26.Qa5 Bf5 (26...Kh7 27.Kg2+=) 27.Kg2 (27.Qa7 Qd2 28.Qc5 Qe1 29.Kg2 Qe2 30.Qd5 Kf8 31.Qf5 Qc4=) 27...Qd7 (27...a6 28.h4+=) 28.h4 Qc6 (28...Qe7 29.Qc3=) 29.Qc3 (better is 29.Qa7!? e3 30.Bf3 Bh3 31.Kh3 Qf3 32.de3 Qh1 33.Kg4 Qe4 34.Kh3 Qh1 35.Kg4 Qe4 36.Kh3 Qh1=) 29...Bc8 30.Qe3 f5 (30...Bb7 31.Bg4=) 31.h5 (31.d4 cd4 32.Qd4 Be6=) 31...Qd6 32.f3 Bb7 33.d3 Qe5 34.Kf2 Kf7 35.de4 fe4 36.f4 (36.fe4!? Be4 37.Bf3 Qb2 38.Kg1 Qb1 39.Kh2 Bf3 40.Qf3 Ke7 41.Qf2=) 36...Qd4+= 37.g4 (37.Bf1 Bc6–/+) 37...Qd6 (37...Bc8 38.g5–/+) 38.Ke1 Qd4 39.Qd4?? (better is 39.Kf2=) 39...cd4–+ 40.Kd2 (40.c5 d3 41.Bf1 Ke6–+) 40...Ke6 41.Bd1 Kd6 42.Be2 (42.Bb3 Kc5–+) 42...Kc5 43.Bf1 (43.g5 e3 44.Kd3–+) 43...e3 44.Ke2 (44.Ke1–+) 44...Kc4 45.f5 Be4 (45...Kc3 46.Ke1 d3 47.Bd3 Kd3 48.Kd1 Bf3 49.Ke1 Bg4 50.a4 Bf5 51.a5 e2 52.Kf2 Kd2 53.Kg3 e1Q 54.Kg2 Qe2 55.Kg3 Ke3 56.a6 Qf2) 46.Bh3 (46.g5 hg5 47.h6 gh6–+) 46...Kd5 47.g5 (47.Bf1 Ke5 48.g5 hg5–+) 47...hg5 48.f6 (48.h6 gh6 49.f6 Bg6–+) 48...gf6 49.h6 Bh7 50.Bg4 Ke5 51.Bh5 (51.Bf3 Kf4 52.Bd5 d3 53.Ke1 Bf5–+) 51...f5 0–1. Matveenko,Yury – Salaev,Ruslan, 19th Voronezh, 2015. (=1.Nf3 Nf6 2.b4 e5 3.a3 e4)

4.Nd4 d5 5.Bb2 a5 6.b5 Be7 (6...Bd6 7.e3+=) 7.e3 0-0 8.d3 c5 9.bc6 bc6 (9...Nc6 10.Be2+=) 10.Nd2 Qd7 (10...c5 11.Nb5+=) 11.de4= de4 12.c4 (12.Nc4 Qc7=) 12...c5 (12...Rd8 13.Rb1+=) 13.Ne2= Rd8 (13...Qc6 14.Qc2=) 14.Ng3 Ng4 (14...Qc6 15.Qc2=) 15.Nde4 Qe6 16.Nd2 (16.Qf3 Nc6+=) 16...Bg5 17.Qe2 Nc6 18.Nf3 (18.Nde4 Be7+=) 18...Be7 19.Nh5 (19.Rd1 Rd1 20.Qd1 Rb8+=) 19...Rb8= 20.Nf4 (20.Bg7? Qf5 21.Qa2 Qh5–+) 20...Qe4 21.Nd5 Be6 22.Ne7 Ne7 23.Rc1 (23.h3 Qb7 24.hg4 Qb2 25.Qb2 Rb2+=) 23...Qb7 24.Bc3 Qb1 25.Bd2 Qb2 26.Qd1 (26.Ng5 Nc6 27.Ne6 fe6–/+) 26...Bf5 (26...Nc6 27.a4+=) 27.h3 Ne5 28.Nh4 (28.a4 Nf3 29.gf3 Qe5–+) 28...Bb1 (28...Bd3 29.f4 (29.Ba5?? Bf1 30.Bd2 Bc4 31.Rc4 Nc4–+) 29...N5c6 30.Rc3 Bf1 31.Rf1–/+) 29.f4 (29.a4 Be4 30.f3 Bc6+=) 29...N7g6 30.Ng6 Bg6 31.fe5 (31.Rc3 Qa2 32.Rc1 Bh5–+) 31...Qe5–+ 32.Qf3 Rd2 33.Kd2 –+. Baer,Werner – Bonetti,Shane, TT–13 ETC, 2004.

4.Nd4 d5 5.Bb2 c5 6.bc5 Bc5 7.e3 Bg4 (7...Nc6 8.Bb5 Bd7 9.Nb3=+) 8.Be2 Qd7 (8...Be2 9.Qe2 0-0 10.0-0=) 9.Bg4 Qg4 (9...Ng4!? 10.f3 Ne5=) 10.Qg4+– Ng4 11.f3 ef3 12.gf3 Ne5 (12...Nf6!? 13.Nb5 Na6+–) 13.Nb5+– Nf3 (13...Nc4 14.Bg7 Rg8 15.Nc7 Kd7 16.Na8 Rg7 17.Nc3+–) 14.Ke2 Ng5 15.Nc7 Kd7 16.Na8 Nc6 17.Bg7 Ra8 18.Nc3 Rg8 19.Bf6 (19.Bh6 Rg6 20.Bg5 Rg5+–) 19...d4 (19...Ne4 20.Ne4 (20.Nd5?! Ke6+=) 20...de4 21.d4+–) 20.ed4 (20.Na4 Be7 21.Bd4 Nd4 22.ed4 Ne6+–) 20...Nd4 21.Kd3 Ndf3 (21...Nge6 22.Rhf1 Nc6 23.Ne4+–) 22.Rab1 (22.Raf1 Ba3 23.h4 Nd2 24.Kd2 Ne6+–) 22...b6 23.Bg5 (better 23.Rbf1 Rg6 24.Bg5 Ng5 25.h4 Rd6 26.Kc4 Rd4 27.Kb3+–) 23...Rg5+– 24.Rbf1 (better 24.Ne4!? Rd5 25.Ke2 Nd4 26.Kd1+–) 24...Ne5= 25.Ke4 Ke6 (25...Ba3? 26.d4 Ke6 27.de5 Re5 28.Kd3+–) 26.d4 (26.h3!? f5 27.Kf4=) 26...Rg4=+ 27.Rf4 Rf4 (better 27...f5 28.Ke3 Nc4 29.Kf3 Rf4 30.Kf4 Bd4–/+) 28.Kf4+= Bd4 29.Nb5 Ng6 30.Ke4 Bb2? (30...Bc5 31.Rf1+=) 31.a4 (31.c3 f5 32.Kd4 a6+–) 31...a6 (31...f5 32.Ke3+–) 32.Nd4 (better 32.Nc7!? Kd6 33.Na6+–) 32...Bd4+= 33.Kd4 f5? (33...Ne5 34.Re1 f6 35.Re3+–) 34.h4?? (better 34.Rb1!? b5 35.ab5 ab5 36.Rb5+–) 34...Ne7+– 35.Rg1 Ng6 (35...Kf6 36.Rb1 Nc8 37.a5 ba5 38.Rb8+–) 36.h5 (36.Rb1 b5+–) 36...Nf4 (better 36...Nf8+–) 37.h6?? (better 37.Rb1 b5 38.ab5 ab5 39.Rb5+–) 37...Ne2–+ 38.Ke3 Ng1 39.Kf4 (39.Kf2 Nh3 40.Ke3 Ng5–+) 39...Ne2 40.Kg5 Nd4 41.c3 Nf3 (41...Nb5!? 42.c4–+) 42.Kf4 Ng5! 43.Kg5 (43.Ke3 Nf7–+) 43...Ke5 44.c4 Ke4 45.Kf6 f4 46.Kg7 f3 47.Kh7 f2 48.Kg7 f1Q 49.h7 Qg2 50.Kh6 Qh3 (50...Kf5 51.h8N Qg8 52.c5 Qh8) 51.Kg7–+ Qg4 52.Kh6 Qh4 (52...Kf5 53.h8N Kf6 54.c5 Qh4) 53.Kg7–+ Qg5 (53...Kf5 54.Kg8 Kg6 55.h8N Kf6 56.Nf7 Qg4 57.Ng5 Qg5 58.Kf8 Qg7 59.Ke8 Qe7) 54.Kf7 Qh6 55.Kg8 Qg6 56.Kh8 (56.Kf8 Qh7 57.Ke8 Ke5 58.Kd8 Kd6 59.c5 bc5 60.a5 Qd7) 56...Kf5 (56...Qf7 57.c5 Qf8) 57.a5 Kf6 58.ab6 Qg7 (58...Qe8) 0–1. brianhc – Adjailton (1815), lichess.org, 2016.

4.Nd4 d5 5.c4 c5 6.bc5 Bc5 7.Nb3 (7.e3 Bd4 8.ed4 dc4 9.Bc4 Qd4–/+) 7...Bf2!–+ 8.Kf2 dc4 9.e3 (9.Bb2 Qb6 10.e3 Bg4–+ (worse 10...Qb3 11.Qb3 cb3 12.Bf6 gf6 13.Nc3–/+)) 9...Ng4 10.Kg1 Qf6 11.Qe1 cb3 12.Nc3 Na6 (12...Qg6 13.Bb2–+) 13.Bb5 Bd7 14.Bd7 Kd7 15.Qe2 Qf5 16.Bb2 Nf6 17.Qc4 Ke8 18.Rf1 Qe6 19.Qb5 Qc6 20.Qg5 Kf8 (better 20...Rg8–+) 21.Rf4? (better 21.Ne2 h6 22.Qh4–/+) 21...Nc5–+ 22.Ne2 (22.Rf1 Nd3 23.Rb1–+) 22...Ne6 23.Qe5 Nf4 24.Qf4 Rd8 25.Nd4 Qb6 26.Kf2 a5 27.Rc1 a4 28.Bc3 h6 29.g4 (29.Kg1 Kg8 30.Nf5 Kh7–+) 29...Rh7 (29...Kg8 30.Nf5 Qe6 31.Bf6 Qf6 32.Ke1–+) 30.h3 Kg8 31.Bb2 Qa5 32.Ke1 Qd5 33.Rc7 Ne8 34.Rc1 (34.Re7 Nd6 35.Re5 Qc4–+) 34...Nd6 35.Rc7 Nc4 36.Rc4 Qc4 37.Qe4 Qa6 38.Qe7 Rf8 39.Qb4 Qd3 40.Bc3 Qe4 41.Ke2 (41.Kf2 Ra8–+) 41...Ra8 42.Nf3 (42.Kf2 h5 43.g5 Qh4 44.Ke2 Qh3 45.Qb7 Qg4 46.Kf2 Rc8–+) 42...Qb4 43.ab4 (43.Bb4?? b2–+) 43...a3 (43...a3 44.Kd3 h5–+) 0–1. roy1nc6 (1895) – offshoremann (1935), gameknot.com, 2013. (=1.Nf3 Nf6 2.b4 e5 3.a3 e4)

4.Nd4 d5 5.e3 c5 6.bc5 Bc5 7.Nb3 Bb6 8.Nc3 Bg4 9.Be2 Be2 10.Qe2 0-0 11.Bb2 Nbd7 12.0-0 Rc8 13.d3 ed3 14.cd3 a6 15.Rfc1 Re8 16.Na2 Qe7 17.Rc8 Rc8 18.Nb4 Qd6 19.Nd4 Bc7 20.Nf3 a5 21.Nc2 b6 22.Ncd4 Ne5 23.Rc1 Nf3 24.Nf3 Nd7 25.d4 Nf6 26.Ne5 Qe6 27.Rc6 Qe7 28.Qa6 Rb8 29.h3 h6 30.Qb5 Rd8 31.Rc1 Ne4 32.Nc6 Qe8 33.a4 Rd7 34.Rc2 Qe6 35.Ne5 Be5 36.Rc8 Kh7 37.de5 Qf5 38.f4 Nd2 39.Bd4 (39.Qb6?! Nc4 40.Qb3 Qb1 41.Kh2 Re7+= (worse is 41...Qb2 42.Qd3 g6 43.Rc4+/–)) 39...Re7 40.Rc1 Qe4 41.Qb6 Re6 42.Qb2 (42.Qa5?! Nb3 43.Qc3 Nc1 44.Qc1 Ra6=) 42...Nc4 43.Qb1 Rc6 44.Qe4 de4 45.Rb1 h5 46.Rb7 Kg6 47.g4 hg4 48.hg4 Nd2 49.Rd7 Rc2 50.Kg2 Nf3 51.Kh3 Ng1 52.Kg3 Ne2 53.Kh4 1–0. Pleschke,Helmut – Schubert,Steffen, IECG, 2000. (=1.Nf3 Nf6 2.b4 e5)

4.Nd4 c5 5.Nb3 d5 6.Ba3 b6 +=.

4.Nd4 c5 5.Nb3 d5 6.d3 c4 (6...Bd6 7.Ba3–/+) 7.dc4= dc4 8.Qd8 Kd8 9.N3d2 e3 10.fe3 Be6 11.Bb2 Nbd7 12.e4 Ng4 13.Bd4 Bd6 14.Nf3 Nge5 15.Nc3 f6 16.Rd1 Ke7 17.Nd5 Kf7 18.Be5 (18.e3 a6 19.b6 Rac8+=) 18...Ne5= 19.Ne5 Be5 (worse 19...fe5 20.e3 Rac8 21.Be2+=) 20.e3 c3 21.Be2 Rad8 22.0-0 Rd7 23.Rd3 Rhd8 24.Rfd1 Ke8 25.h3 g6 26.a4 g5 27.Bh5 Kf8 28.Bf3 Rd6 29.Be2 h6 30.Kf1 R6d7 31.Bh5 Kg7 32.Bf3 Kh8 (32...a6 33.Bg4 Bg4 34.hg4+=) 33.Kg1 Kg7 34.Kh1 Kg8 35.Be2 Kh8 36.Bh5 Kg8 37.Bg6 Kh8 (37...Kg7!? 38.Bf5 Kf7+=) 38.Bf5+– Bf5 39.ef5 Rd6 40.Kg1 h5 41.e4 h4 42.a5 R6d7 43.Rf1 Rc8 44.Ra1 Rc5 45.b6 a6 46.Kf2 Rd8 47.Ra3 Rc4 48.Kf3 Kh7 49.Ra1 Rc6 50.Rad1 Rb8 (50...Kh6!?+–) 51.Nc7! Rc4 (51...Bc7 52.bc7 Double attack (52.Rd7 Decoy)) 52.Rd7 Kh8 53.Rd8 Rd8 54.Rd8 Kh7 55.Rb8 Ra4 56.Rb7 Ra5 57.Ra7 Kh8 (57...Ra2 58.Nd5 (58.Na6?! Kg8+–) 58...Kh8 59.b7+–) 58.Ra6 (58.Na6?! Ra2 59.Nb4 Rb2+–) 58...Rc5 59.Ra7 (59.b7 Bc7 60.Rf6 Rb5+=) 59...Kg8 60.Ra8 Kf7 61.b7 Bc7 62.Rc8 Ke7 63.Rc7! Rc7 64.b8Q Kd7 65.e5! fe5 66.f6 e4 (66...Kc6 67.Qe8 Kd6 68.f7 Rf7 69.Qf7 e4 70.Ke4+–) 67.Ke4 Rc4 68.Kd5 Rf4 1–0. GLChess211 – Esc028, computer chess game, 2001.

4.Nd4 c5 5.Nb3 d5 6.e3 Bg4 (6...Bd6 7.Bb2+=) 7.Be2+= Be2 8.Qe2 Nbd7 9.d3 Bd6 10.N1d2 (10.Bb2 Qc7+=) 10...ed3 (10...0-0 11.Bb2+=) 11.cd3 0-0 12.0-0 (12.Bb2 a6 13.ba6 Ra6+=) 12...Be5 (12...Qc7 13.Nf3–/+) 13.d4 cd4 14.ed4 (14.Nd4 Bd4 15.ed4 Re8+=) 14...Bd6 15.Qd3 (15.Nf3 Re8 16.Be3 Nb6+=) 15...Re8 (15...Qc7 16.Nf3+=) 16.Nf3 h6 (16...Qe7 17.Bd2+=) 17.Be3= Rc8 18.Rac1 b6 (18...Qe7 19.Rfe1=) 19.Rc8 Qc8 20.Rc1 Qb8 21.h3 (21.Nbd2 Re6=) 21...Ne4 22.Nbd2 (22.Nfd2 f5=) 22...Ndf6 23.Nf1 (23.Qb3 Qb7=) 23...Rc8 24.Rc8 (24.Rc2 Rc2 25.Qc2 Qc7 26.Qc7 Bc7=) 24...Qc8 25.Ne5 (25.Nh4 Qc3 26.Qe2 Qa1+=) 25...Nd7 (better is 25...Qc3!?–/+) 26.Nc6= Qc7 (26...a6 27.Bf4 Qa8 28.Ne3 Bf4 29.Nd5+=) 27.Qb3 (27.Bf4 Ndf6 28.Bd6 Nd6+=) 27...Ndf6 (27...a6 28.Qd5 Nc3 29.Qc4 Nb5 30.d5=) 28.Qd3 (28.f3 Ng3+=) 28...a6= 29.a4 a5 (29...ab5 30.ab5 Bf4 31.Qc2=) 30.Qe2 (30.Bc1 Qd7=) 30...Bf4 (30...Qd7 31.f3 Ng5 32.Bg5 hg5 33.Qe3+=) 31.g3 (31.Bf4 Qf4 32.f3 Ng5+=) ½–½. Gross,Wilhelm – Merten,Rainer, xvi, 1988.

4.Nd4 c5 5.Nf5 d5–/+ 6.g4?? (better 6.Ng3–/+) 6...Ng4–+ 7.Ng3 (7.h3 Nf2 8.Kf2–+) 7...Qf6 8.f3 Qa1 9.fg4 (9.Ba3 ef3 10.ef3 Ne5–+) 9...Qb1 10.e3 (10.c4 dc4 11.Bg2 Bg4 12.Ne4 Qb5–+) 10...Qa2 11.Bg2 Nd7 (11...c4 12.0-0 Qa4 13.Bb2 Qb5 14.Bc3–+) 12.0-0 (12.d3 Ne5 13.de4 de4 14.Be4 Bg4–+) 12...Ne5 13.Ne4 (13.h3 Bd7 14.Ne2 Bd6–+) 13...de4 14.Be4 (14.Rf4 Be7–+) 14...Qc4 15.Bb2 (15.Bf5 Qb5 16.d3 Bf5 17.gf5 Bd6–+) 15…Qe4 (15...Qe4 16.Rf4 Qd5 17.Be5 Qe5–+) 0–1. yodamo (1860) – dewil (2570), ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e5 3.b5 e4)

4.Ng5 h6 5.Nh3 d5 6.g3 a6 7.ba6 Ra6 8.e3? (8.Bb2 d4-/+) 8...Rb6?? (better 8...Bg4!? 9.Be2 Bh3 10.Ba6 Na6 11.Ba3-+) 9.Nc3 (better 9.Nf4!?-/+) 9...Bg4-+ 10.Ne2 Bf3 11.Rg1 Qd7 12.Nhf4 Bc5 (12...g5!? 13.Ng2 Ng4 14.d3-+) 13.c3 Nc6 14.Qc2 g5 15.Rb1? (15.d4 Bd6 (15...gf4?! 16.dc5 Rb5 17.Nd4 Nd4 18.ed4 fg3 19.Bb5 gf2 20.Qf2 Qb5 21.Bf4+=) 16.Ng2 Qh3-+) 15...Ne5 (15...gf4!? 16.Nf4 Rb1 17.Qb1-+) 16.Rb6 Bb6 (16...cb6?! 17.d4 ed3 18.Nd3=+) 17.d4 ed3 (better 17...Neg4-+) 18.Nd3-/+ Nc4 (18...Nd3 19.Qd3 Be4 20.Qd1-/+) 19.Nd4 Be4 20.Qb3 c5 21.Nb5 (21.Nb2 Bd8 (worse 21...cd4 22.Nc4 dc4 23.Qb6=) 22.f3 Na5-/+) 21...0-0 (21...Ng4 22.Na3 Nh2 23.Bg2-+) 22.Nb2 (22.h4!?=+) 22...Ne5-/+ 23.Bg2?? (better 23.Be2-/+) 23...c4 24.Qb4 (24.Qa4 Bg2 25.Rg2 Nf3 26.Kf1 Qh3-+) 24...Bg2 25.Rg2 Ne4 (25...Qh3 26.Nd6 Qg2 27.Qb6 Qg1 28.Kd2 Nf3 29.Kc2 Qf2 30.Kb1-+) 26.Nd4 (26.Kf1 Ra8 27.Nd4 Bc5-+) 26...Bc5 27.Qb5 (27.Qa5 Bd4 28.ed4 Nf3 29.Ke2 Qg4 30.Kd1 Nd4 31.f3 Qf3 32.Ke1 Nf2 33.cd4 Re8 34.Be3 Qe3 35.Kf1 Qe2 36.Kg1 Nh3 37.Kh1 Qf1 38.Rg1 Qg1) 27...Qh3 (better 27...Bd4 28.Qd7 Bc3 (28...Nd7?! 29.cd4 g4 30.a3-+) 29.Kf1 Nd7-+) 28.Kf1 Bd4 (28...b6 29.Nd1 Bd4 30.Qd5 Qg4 31.Qd4 Nc6-+) 29.cd4?? (better 29.Qd5 Nf6 30.Qd4-+) 29...Nf3 30.Qd5 (30.Qa5 Nh2 31.Ke2 Qg2-+) 30...Nh2 31.Ke1 Qg2 32.Nd1 c3 (32...Qf1) 33.Ba3 (33.Qf7 Kf7 34.Nc3 Qf1) 33...c2 (33...Qf1) 34.Qe4 (34.Qf7 Kf7 35.Bf8 Qf1) 34...Qe4 (34...Qf1 35.Kd2 cd1Q 36.Kc3 Qde1 37.Kb3 Qb5 38.Bb4 Qbb4 39.Kc2 Qeb1) 35.Nc3 c1Q! 36.Bc1 Nf3 (36...Qd3 37.f4 Qc3 38.Ke2 Qc4 39.Kd1 Qf1 40.Kc2 Rc8 41.Kb3 Qb5 42.Ka3 Rc3) 37.Ke2 Rc8 (better 37...Nd4 38.Ke1 Qc2 39.ed4 Qc1 40.Ke2 Qc3 41.a4 Re8 42.Kf1 Qf3 43.Kg1 Re1 44.Kh2 Qh1) 38.Bd2?? (better 38.Ne4 Nd4! 39.ed4 Rc1 40.Kd3-+) 38...Rc3! 39.Bc3 (39.Bc3 Qc2 Double attack (39...Qc2 Decoy)) 39...Qc2 (39...g4 40.Kf1 Qb1 41.Ke2 Qc2 42.Kf1 Qd1 43.Be1 Qe1 44.Kg2 Qg1) 40.Kf3-+ Qc3 41.Kg2 Qb2 42.Kf3 Qa2 43.Kg2 b5 44.Kf3 b4 45.Kg2 b3 46.Kf3 (46.Kg1 b2 47.Kg2 Qd5 48.e4 Qe4 49.f3 Qe2 50.Kh3 b1Q 51.Kg4 Qe6 52.Kh5 Qh1) 46...b2 47.Ke4 (47.Kg2 Qd5 48.e4 Qe4 49.f3 Qe2 50.Kh3 b1Q 51.Kg4 Qe6 52.Kh5 Qh1) 47...b1Q 48.Ke5 (48.Kf3 Qh1 49.Kg4 Qe6) 48...Qd1 (48...Qe6) 49.Kf6 (49.Kd6 Qe6 50.Kc5 Qdb3 51.e4 Qbc4) 49…Qde2 (49...Qde2 50.d5 Qd5 51.Ke7 Qed3 52.g4 Qe6; 49...Qe6) 0-1. FERNANDO_2013 (1835) - TheLightSquares (1920), Rated Blitz game, lichess.org, 2018. (=1.Nf3 Nf6 2.b4 e5)

4.a3 Bd6 5.d4 0-0 6.Nd2 Re8 7.Ndc4 Be7 8.Ne3 d6 9.Nf3 Ne4 10.c4 c6 11.Bd2 Bf6 12.Nc2 c5 13.e3 cd4 14.Nfd4 Nc6 15.Be2 Bd4 16.ed4 Bg4! 17.Ne3 Be2 18.Qe2 Nd4 19.Qd3 Qf6 20.0-0 Nd2 21.Qd2 Nb3 22.Qa2 Na1 23.Nd5 Qf5 24.Qa1 Rac8 (25.Re1 Qd7 26.Re8 Qe8–+) 0–1. b4_player (2175) – Byleth (2150), GameColony.com, 2003.

4.a3 Bd6 5.d4 0-0 6.e3 c5 7.Bb2 Qc7 8.Ng4 Ng4 9.Qg4 Re8 10.Bd3 c4 11.Be4 Re7 12.Nc3 Re8 13.Qh5 g6 14.Qe2 Qb6 15.Rb1+/– Qa6 16.0-0 Nc6 17.Bd5 Nd4+= 18.Qd2 Nf5 19.Ne4 Kf8 20.Nf6+– Re7 21.Nh7 Kg8 22.Nf6 Kf8 23.Ng4 Ba3? 24.Ra1+– Bb2?? 25.Ra6 Bg7 26.e4 c3 27.Qg5 Nd4 28.Rf6 Ke8 29.Nh6 Ne6 30.Be6 Bf6 31.Bf7 (31...Rf7 32.Qg6+–) 1–0. Ritter,Fredi – Hohlstein,Walter, TT–05 TSC, 2003.

4.a3 Bd6 5.d4 0-0 6.e3 Nc6 7.Bb2 =.

4.a3 Bd6 5.d4 0-0 6.Bf4 Nc6 =.

4.a3 Be7 5.Nc3 0-0 6.e4 d5 7.ed5 Nd5 8.Bb2 Bf6 9.Nd5 Qd5 10.c4 Qe6 11.d4 Nc6 12.f4 Qf5 13.Qf3 Qc2 14.Qe2 Qb3 15.Nc6 bc6 16.Qd2 c5 17.Rc1 Rd8 18.Bd3 Re8 19.Kf2 cd4 20.Rhe1 Bb7 21.c5 Re3 22.Be2? Qd5 23.c6 Bc6 24.Rc6 Qc6 25.Bd4 Re2! 26.Re2 Rd8 27.Re1 Bd4 28.Kf1 Qa6 29.Qe2 Qa3 30.Qe4 Qa6 31.Re2 c5 32.g4 Qc8 33.f5 c4 34.Kg2 c3 35.Kf3 a5 36.h4 a4 37.Kf4 Qb8 38.Kf3 Qa8 39.Ra2 Qe4 40.Ke4 a3 41.Rc2 Bc5 42.g5 Rd4 43.Kf3 Rh4 44.g6 hg6 45.fg6 Ra4 (46.Rc3 Ra5–+) 0–1. glc209_wb – Bringer, computer chess game, 2000.

4.a3 Be7 5.c4 d6 (5...Nc6 6.d4–/+) 6.Nf3=+ 0-0 7.Qa4 (7.Nc3 Nc6=+) 7...Nc6–/+ 8.Nc3 Bd7 (8...Bf5 9.Qb3–/+) 9.e3 Nd4 (9...Ne5 10.Qb3=+) 10.Qd1=+ Nf3 11.gf3 Bc6 12.Bd3 (12.Rg1 Qd7=+) 12...Qd7 13.e4 (13.h4 d5=+) 13...Nh5 14.Nd5 Bd5 15.cd5 Nf4 16.Bc4? (better 16.Bf1=+) 16...Ng2–+ 17.Kf1 Qh3 18.Ke2 (18.Qb3 f5 19.f4 Ne3 20.Ke2 Qg4 21.f3 (21.Ke3?? fe4 22.d4 Qf4 23.Ke2 Qf2 24.Kd1 Qd4 25.Kc2 Qa1–+) 21...Qg2 22.Ke3 Qh1 23.Bb2 Qh2 24.e5–+) 18...Nf4 19.Ke1 Qg2 (19...f5 20.e5 Ng2 21.Ke2–+) 20.Rf1 Bh4 21.d4 Nh3 22.Be3 (22.Kd2 Rac8 (worse 22...Nf2 23.Qe2–/+; 22...Bf2?! 23.Qe2–/+) 23.Kc3 c5–+) 22...f5 23.ef5 (23.Ra2 Ng1 24.Kd2 Nf3 25.Kc3 fe4–+) 23...Rae8 24.Kd2 Re3! (24...Bf2?! 25.Rf2 Nf2 26.Qe2 Re3 27.Qe3 Ne4 28.Kc1 Qh1 29.Kb2 Qh2 30.Qe2 Qe2 31.Be2–+) 25.Ke3 Bg5 (better 25...Nf2 26.Rf2 Bf2 27.Kd3 Re8–+) 26.Kd3–/+ Nf2 27.Rf2 Qf2 28.Qe2 Qe2 29.Ke2 Re8 30.Kf1 Bf6 (30...Re3!?–/+) 31.Rb1=+ b6 (31...Re3 32.Rb3 Rb3 33.Bb3=+) 32.a4 (32.Re1 Re1 33.Ke1 Bd4=) 32...a5 (32...Bd4 33.Re1 Rf8 34.Bd3=+) 33.Rd1 Re3 34.Kf2 Rc3 35.Bb5 Rc2 36.Kg3 Kf7 37.h4 Rb2 38.h5 h6 39.Rc1 Bd4 40.Rc7 Kf6 41.Rc4 Rb4 (41...Ke5 42.Rc7=+) 42.Kf4= Bc5 43.Re4 Rd4 44.Rd4 Bd4 45.Bd3 Bf2 46.Be2 Bc5 47.Ke4 Bf2 48.f4 Bc5 49.Bf3 Bf2 50.Bg2 ½–½. kewois (1775) – chesswill (1750), gameknot.com, 2018.

4.a3 Be7 5.e3 d5 6.Bb2 0-0 7.Be2 Bf5 8.0-0 Nc6 9.f4 Qc8 10.Nc6 bc6 11.Qc1 Rb8 12.Nc3 Re8 13.Bd3 Bd3 14.cd3 Qf5 15.d4 c5 16.dc5 Bc5 17.Na4 Bd6 18.Bd4 Nd7 19.Nc5 (19.Qc6 Qe6+=) 19...Rb5 20.Nd7 Qd7 21.Rf3 (worse is 21.Ba7 c5 22.a4 Rb4 23.Bc5 Rc4–/+) 21...c5 22.Bc3 Qf5 23.Rg3 g6 24.Qf1 Reb8 25.d3 c4 26.e4 (26.dc4? Rb1 27.Rb1 Rb1–+) 26...de4 27.dc4 Rb3 28.Be5 Be5 29.Rb3?? (29.fe5 Qe5 30.Rb3 Rb3–+) 29...Rb3 (better is 29...Bd4 30.Kh1 Rb3–+) 30.fe5 Qf1 (better is 30...Qe5!? 31.Kh1 Rc3–+) 31.Kf1+= Rc3 32.Rb1 Rc4 33.Rb8 Kg7 34.Rb7 Kf8 35.Ra7 Rc5 ½–½. Conlon,R – Levadi,David, Detroit, 1992. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.Bb2 Nc6 5.e3 Ne5 6.Be5 d5 7.c3 Bd6+= 8.Bd6 (8.Qa4 c6 (8...Bd7 9.Qd4 Be5 10.Qe5 Be6 11.d4 0-0 12.Bd3) 9.Bd6 Qd6 10.d4 Ne4 11.Qc2 Qg6 12.Nd2) 8...Qd6 9.d4 (9.Qa4 Bd7 10.Qa3 Qa3 11.Na3 Bf5 12.Nb5) 9...0-0 (9...Bf5 10.Qa4 c6 11.Qb4 Qd7 12.Be2) 10.Bd3 Bg4 (10...b6 11.Nd2 Qc6 12.Qc2) 11.Be2 (11.Qa4 b6= 12.Nd2) 11...Be2+= 12.Qe2 c5 13.0-0 Rac8 14.Nd2 cd4 (14...b6 15.Qf3+=) 15.cd4= Rc2 16.Rfc1 Rfc8 17.Qd1 Qc7 18.Nb3 b6 19.Rc2 Qc2 20.Qc2 Rc2 21.Rc1 ½–½. Verhaeren,Gertjan – Bertel,Michael (1765), TE.2004.P.01713, 2004.

4.Bb2 Nc6 5.e3 Ne5 6.Be5 d5 7.Nc3 0-0 (7...Bc3 8.Bc3 0-0 9.Bd4= (9.Bd3 Ne4 10.Be4 de4 11.Qh5 f5 12.0-0) 9...Qe7 10.c4 c5 11.Bf6 Qf6 12.cd5; 7...c6 8.Qf3 A) 8...b6 9.Rb1 Be7 10.Be2 0-0 11.0-0 Qd7 12.Qg3; B) 8...Qe7 9.Bf6 gf6 10.Ne2 Rg8 11.h3 Bd6 12.Rb1; C) 8...h6 9.Rb1 (9.Qf4 Be7 10.Be2 0-0 11.0-0 Qd7 12.Rfb1) 9...Be7 10.Be2 0-0 11.0-0 Nd7 12.Bf4; D) 8...Bd6 9.Bf6 Qf6 10.Qf6 gf6 11.d4 f5 12.Rb1) 8.Rb1 (8.Bf6 Qf6 9.Nd5 Bd2 10.Kd2 Qf2 (10...Rd8 11.Ke2 Qe5 12.c4) 11.Qe2 Qh4+– 12.Qc4) 8...a5 (8...Bc3!? 9.Bc3 Ne4= 10.Bb2 c5 11.Be2 Re8 12.Bb5) 9.Bf6+= Qf6 10.Nd5 Qd6 11.Nf4 (11.Nb4 ab4 12.Rb2) 11...Re8 12.Be2 Bf5 13.0-0 Bd2 14.Rb7 Be4 15.Rb1 Rad8 (15...Rab8 16.Bd3 Bd3 17.cd3+/–) 16.Bd3+/– Bd3 17.Nd3 Bb4 18.Nb4 Qd1 19.Rfd1 Rd1 20.Rd1 ab4 21.Rd7 Kf8 22.Rc7 Ra8 23.Kf1 Ra2 24.Ke2 b3 25.Kd3 bc2 26.Rc2 Ra3 27.Ke4 Ke7 28.Kf4 Kd6 29.e4 Rb3 30.f3 Rb5 31.Ra2 Ke6 32.Ra6 Ke7 33.h4 h6 34.g4 g6 35.Ra8 g5 36.Kg3 Rb6 37.Ra6?? (better is 37.Ra5 Kf6 38.Rf5 Kg6 39.h5 Kg7 40.e5+/–) 37…Ra6–+ 0–1. Popstein,Sheila – Bertel,Michael (1765), TE.2004.P.01713, 2004.

4.Bb2 d5 5.c4 0-0 6.Qb3 a5 7.cd5 Qd5 (7...Nd5 8.e4 Nf6 9.Bc4 Ne4 10.Nf7=) 8.Qd5= Nd5 9.a3 Bd6 10.d4 c5 (10...Rd8!?=) 11.Nc4+= Bc7 12.dc5 Nd7 13.Bd4 Nf4 14.Nc3 Ne6 Exerts pressure on the isolated pawn 15.Be3 (15.e3 Ndc5 16.Bc5 Nc5+–) 15...Ndc5 16.Nd5 Bd8 17.Ncb6 Bb6 18.Nb6 Ra6 19.Nc8 (19.Rb1!?+=) 19...Rc8= 20.g3 (20.g4 Rb6=) 20...Rb6 21.Bh3 Rb3 22.0-0 Ne4 23.Rfb1 a4 24.Rb3 ab3 25.Rb1 Rc3 26.Bg2 (26.Bf5 N6c5=) 26...N6c5 27.Bc5 (27.Bf3 Re3 28.Rd1 Kf8 29.fe3 Nc3–+) 27...Nd2 (27...Nc5 28.Bd5=) 28.Rb2 Nc4 (28...Rc1 29.Bf1 Nf1 30.Kg2 Rc5 31.Kf1 Rc1 32.Kg2=) 29.Rb1 Nd2 ½–½. Sternik,Ryszard (1830) – Faust,Dieter (1850), FICGS, 2011. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.Bb2 d5 5.c4 0-0 6.Qb3 Be7 7.cd5 Qd5 8.Qd5 Nd5 9.Nc3 Nb6 10.e3 c6 11.a4 a5 12.Nc4 Nc4 13.Bc4 Bb4 14.0-0 Re8 15.d4 Bf5 16.Rfc1 Nd7 17.Ba3 Nf6 18.h3 Reb8 19.Bb3 Ba3 20.Ra3 b5 21.Ne2 b4 22.Raa1 Rb6 23.f3 Be6 24.Be6 fe6 25.Rc2 Rab8 26.Nc1 Nd5 27.Nb3 Ne3 28.Rc5 Ra8 29.Re1 (worse is 29.Ra5 Ra5 30.Na5 Nc2–/+) 29...Nd5 30.Re6 Rba6 31.Rec6 Rc6 32.Rc6 Nc3 33.Rc5 Na4 34.Re5 Nc3 35.Na5 h6 ½–½. Taulien,Hans_Juergen (2380) – Bolz,Barbara (2110), EU/WS/M/033 ICCF, 2011.

4.Bb2 d5 5.Nd3 Bd6 (5...Nc6 6.Nb4 Nb4 7.a3=+) 6.g3= c5 (6...Nc6 7.Bg2=) 7.Bg2 d4 8.c4 (better 8.Na3!?=) 8...Nc6=+ 9.e4 de3 (9...0-0!? 10.0-0 Re8=+) 10.de3= Bg4 11.f3 (11.Qd2 0-0=) 11...Be6 12.e4? (better 12.0-0 Bc4 13.Na3 Bd3 14.Qd3=) 12...Bc4-+ 13.Nf2 (13.0-0 Qb6 14.Bf6 gf6-+) 13...Be5 (better 13...0-0!? 14.Na3 Ba6 15.Rc1 Qa5 16.Qd2 Qd2 17.Kd2-+) 14.Be5 (14.Qd8 Rd8 15.Be5 Ne5-/+) 14...Qd1-+ 15.Kd1 Ne5 16.Nd2 Ke7 (16...0-0-0!? 17.f4 Nd3 18.Nd3 Bd3 19.e5-+) 17.Nc4 Nc4 18.f4 (18.Ke2 Rad8 19.Rhd1 Rd7-/+) 18...Rhd8 19.Kc2?? (19.Ke2 Rd2 20.Kf3 Rad8-+) 19...Rd4 (better 19...Ne3 20.Kc3 Ng2-+) 20.e5 Rad8?? (better 20...Ne3 21.Kc3 Nfd5 22.Bd5 Nd5 (22...Rd5?! 23.Rhe1 Nf5 24.Rad1-/+) 23.Kb3 b5-+) 21.Bb7?? (21.ef6 Kf6 22.Kc3 Ne3+=) 21...Nh5 (better 21...Ne3 22.Kc1 Rc4 23.Kb2 Nfd5-+) 22.Rad1?? (better 22.Kc3=) 22...Nf4 (better 22...Ne3 23.Kc1 Rc4 24.Kb1 Rb4 25.Kc1 Nd1 26.Nd1 Rb7 27.Rf1-+) 23.gf4?? (23.Rd4 Rd4 24.gf4 Ne3 25.Kc3 Rf4+/-) 23...Rf4 (better 23...Ne3 24.Kc1 Rc4 25.Kb1 Rb4 26.Kc1 Nd1 (26...Rb7?! 27.Rd8 Kd8 28.Re1-/+) 27.Nd1 Rb7-+) 24.Rd8+/- Ke6?? (better 24...Rf2 25.Kc3 Kd8 26.Kc4 Rc2 27.Kb3 Rd2+-) 25.Re1 (better 25.Nd3 Ne3 26.Kb1 Rh4+-) 25...Ne5 (25...Rf2 26.Kc3 Nb6+-) 26.Re8 (26.Nd3!? Ke7 27.Nf4 Kd8 28.Re5 Kd7+-) 26...Kd6 (26...Kd7 27.R8e5 Rf2 28.R1e2+-) 27.R8e5 (better 27.Ne4 Re4 28.Be4 Nc6 29.Bc6 Kc6+-) 27...Rd4 (27...Rf2 28.R1e2 Rf6+-) 28.Kc3 f6 29.Re8 (29.Re7 Re4 30.R1e4 c4 31.Kc4 f5 32.R4e6) 29...Rf4 30.R1e6 Kd7 (30...Kc7 31.R8e7 Kd8 32.Bc6 Rd4 33.Rf7 Kc8 34.Re8 Rd8 35.Bb7 Kb8 36.Rd8) 31.Kd3 (31.Bc6 Kc7 32.R8e7 Kc8 33.Rg7 Rd4 34.Re8 Rd8 35.Bb7 Kb8 36.Rd8) 31…Rd4 (31...Rd4 32.Ke3 Kc7 33.Ne4 Rd8 34.R6e7 Rd7 35.Rc8 Kb7 36.Nd6 Kb6 37.Rd7 h6 38.Rb7 Ka5 39.Ra8 a6 40.Nc4 Ka4 41.Ra6). mordor1 (2135) - Lance5500 (2410), lichess.org, 2016. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.Bb2 d6 5.Nd3 Ba5 6.e3 Nc6 7.Qf3 Bg4 8.Bf6 Qf6 9.Qf6 gf6 10.Nf4 0-0-0 11.Nc3 Bc3= 12.dc3 Ne5 13.Nd5 f5 14.Bd3+= Kb8 15.Rb1 b6 16.a3 a5 17.Nf6 Rhf8?? 18.h3+– Bh3 19.Rh3 Rg8 20.Ng8 Rg8 21.Kf1 Ng4 22.Rh7 Ne5 23.Bf5 (23...Ka7 24.Be4+–) 1–0. Pierred (2280) – Mitthu_1, Rated game, 1m + 0s, 2006.

4.c3 Ba5 5.Ba3=+ Nc6 6.Nc4 (6.Nc6 dc6 7.e4 Be6=+ (worse 7...Ne4 8.Qe2+=)) 6...Bb6 7.e3 d6 (7...d5 8.Nb6 ab6 9.Be2=+) 8.Bd3 (8.d4 Bf5=+) 8...Ne5 (8...0-0!?–/+) 9.Ne5=+ de5 10.Bc2 e4 (10...c5 11.c4=+) 11.d4 (better 11.Be4!? Ne4 12.Qa4 c6 13.Qe4 Be6 14.d4=) 11...ed3–/+ 12.Bd3 Qd5 (12...Bg4 13.Qa4 c6 14.Bc2–/+) 13.0-0=+ Be6 (13...Bg4 14.c4 Qd7 15.Be2=+) 14.c4= Qe5 15.Nd2 Be3 16.Nf3 Qc3 The isolani on c4 becomes a target (16...Qa5!? 17.Qb3 Bb6=) 17.Qa4+= (worse 17.fe3 Qa3 18.Qb3 Qb3 19.ab3 a5–/+) 17...Bd7 18.Qb3 Qb3 19.ab3 Bf4 20.Rfe1 Be6 21.Bf5 0-0-0 22.Be6 fe6 23.Re6 (23.g3 Rd3 24.Kg2 Bd6=) 23...Rd3= 24.Rb1 Rhd8 25.h3 Rd1 26.Re1 Rb1 27.Rb1 Rd3 28.Be7 (28.Ne1 Rd7=) 28...Ne4=+ 29.b4 h5 (29...Rc3 30.c5=+) 30.b5 (30.Re1 Nd2 31.Nd2 Bd2=+) 30...g5 (30...Rc3=+) 31.c5 (better 31.Re1!? Nd6 32.Ng5 Nc4 33.Ne6=) 31...g4 (31...Rd7 32.Bf8 g4 33.Nh4 gh3 34.gh3–/+) 32.hg4 hg4 33.Ne1 Rd2 34.f3?? (better 34.Rb4!? Nc3 35.Kf1=+) 34...Be3 (better 34...Nc3 35.Ra1 Ne2 36.Kf1 Ng3 37.Kg1 Nf5–+) 35.Kh2 Bf4 36.Kg1 gf3?? (better 36...Nc3 37.Ra1 Ne2 38.Kf1 Ng3 39.Kg1 Nf5 40.fg4 Be3 41.Kh2 Ne7–+) 37.Nf3–/+ Be3 38.Kh2 Rd7 39.Bh4 Bc5 40.g4 Bd6 (40...Rf7 41.Rb3–/+) 41.Kg2 Bf4?? (41...Rg7 42.Kh3=+) 42.Re1?? (better 42.Rb4 Bg5 43.Bg5 Ng5 44.Ng5+–) 42...Nd6=+ 43.Ne5 Rh7 44.Ng6 c5 (44...Bd2 45.Rd1 Nc4 46.Kg3=+) 45.Nf4 (better 45.bc6!? bc6 46.Re6=) 45...Rh4–/+ 46.Kg3 Rh8 47.Re5 b6 48.g5 1–0. yodamo – dramir2, ChessWorld.net, 2011. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.c3 Qe7 5.d4= Ba5 6.Nc4 Bb6 7.Bg5 d6 (7...d5 8.Nb6 ab6 9.e3=) 8.e3+= h6 9.Bh4 (9.Bf6 Qf6 10.a4 c6+=) 9...Be6 (9...g5 10.Bg3=) 10.Nbd2 (10.Qf3 Bd5 11.Qd5 Nd5 12.Be7 Ne7 13.Nb6 ab6 14.Bb5 c6=) 10...Nbd7 11.a4 d5 12.Ne5 c6 (12...Ba5 13.Qb3=) 13.Bd3 Bc7 14.Ndf3 g5 15.Bg3 0-0 (better 15...Ba5!? 16.Qb3 Ne4=) 16.Nc6!+– bc6 17.Bc7 Nb6 (17...c5 18.Rb1+–) 18.Be5 (18.Bg3 Ne4+–) 18...Ne4+– 19.h4 g4 (19...f6 20.Bh2 g4 21.Nd2 Nc3 22.Qc2+–) 20.Nd2+– Nc3 (20...f5 21.f3 Nd2 22.Qd2+–) 21.Qc2 Do you see the mate threat? 21...Nca4?? (21...Ne4 22.Ne4 (22.Qc6?! Rfc8 23.Qb5 Nd2 24.Kd2 Nc4 25.Bc4 dc4=; 22.Be4?! de4 23.Ne4 Qb4 24.Kf1 Nd7+–) 22...de4 23.Be4 Qb4 24.Kf1+–) 22.Ra4 (22.Bh7) 22...Na4?? (22...f6 23.Bf4 Na4 24.Qa4+–) 23.Qa4 (23.Bh7) 23...Bd7 24.g3 (24.Qc2 f6 25.Bf4 Kg7+–) 24...h5 (24...a5!? 25.Bf4 Rfe8 26.Bh6 c5+–) 25.Qc2+– The mate threat is Bh7 25...f6 26.Bf4 Kg7 27.Nb3 a5 28.Nc5 Rfb8? (28...Ra7+–) 29.Bb8 Rb8 30.Bh7 (30.0-0 Ra8+–) 30...Be8 (30...Ra8 31.0-0 Qe8 32.Bf5+–) 31.Bf5 Bf7 32.0-0 Qa7 33.Ne6 Be6 34.Be6 Rb6 35.Rb1 (better 35.Bf5+–) 35...Rb1 36.Qb1 a4 37.Bf5 a3 38.Qa2 (38.Bh7 Qf7+–) 38...Qa4 39.Bc2 Qb4 40.Bb1 f5? (40...Qa4!?+–) 41.Bf5 (41.Qc2 Qb2 42.Qf5 a2 43.Qh7 Kf6+–) 41...Kf6 42.Bh7 Kg7 43.Qc2 Qd6 44.Bd3 Qb4 (44...Kf6 45.Qa4+–) 45.Qb1 (45.Kf1 Qa5 46.Qc6 a2 47.Qg6 Kf8 48.Qh6 Ke7 49.Qg7 Ke8 50.Bg6 Kd8 51.Qf8 Kc7 52.Qe7 Kb8 53.Qe8 Ka7 54.Qf7 Kb8 55.Qg8 Kc7 56.Qf7 Kb8 57.Qf4 Ka7 58.Qf7 Kb8=) 45...Qd2? (45...Qb1 46.Bb1 Kf6+–) 46.Bc2 Kf6 47.Qa2 (47.Bg6 a2 48.Qf5 Ke7 49.Qe5 Kd8 50.Qb8 Kd7 51.Bf5 Ke7 52.Qe5 Kf7 53.Qe6 Kf8 54.Qd6 Kf7 55.Be6 Kf6 56.Bd5 Kg7 57.Qe7 Kg6 58.Be4 Kh6 59.Qf6) 47...Qc1 (47...Qe2 48.Bb3 Qb2 49.Kf1 Qa2 50.Ba2+–) 48.Kg2 Ke6 (48...Qb2 49.Qb2 ab2 50.Kf1+–) 49.Qb1 (better 49.Qb3 Qb2 50.Qa4+–) 49...Qd2 (49...Qb2 50.Qb2 ab2 51.Kf1+–) 50.Bb3 (50.Bg6 Qe2 51.Qf5 Ke7 52.Qf7 Kd8 53.Bf5 Qf3 54.Kg1 Qf5 55.Qf5 a2 56.Qf8 Kd7 57.Qa3 c5 58.Qa2 c4 59.Qa7 Ke6 60.Qc7 Kf6 61.Qe5 Kg6 62.Qg5 Kh7 63.Qh5 Kg7 64.Qg4 Kf6 65.Qg5 Ke6 66.Qe5 Kd7 67.Qd5 Ke7 68.Qc5 Ke6 69.d5 Kf7 70.Qc7 Kf6 71.Qd6 Kf7 72.Qd7 Kf6 73.h5 c3 74.Qe6 Kg7 75.Qe7 Kh6 76.Qf7 c2 77.Qg6) 50...Qe2 (50...Kf6 51.Ba4 a2 52.Qa1+–) 51.Qa2 (51.Qg6!? Kd7 52.Qh5 Qf3 53.Kg1 Qe4 54.Qf7 Qe7 55.Qf5 Qe6+–) 51...Qf3? (51...Qb2+–) 52.Kg1 Qe4 (52...Qf8 53.Qc2 Qd6 54.Qg6 Ke7 55.Qh5+–) 53.Qa3 (better 53.Bc2!? Qf3 54.Qa3 Qe2+–) 53...Qb1 54.Kg2 Qe4 55.Kg1 (55.Kh2 Qb1+–) 55...Qb1 56.Kh2 Qf1 57.Qa2 Qe1 (57...Ke7+–) 58.Qc2 Kd7 (58...Ke7 59.Ba4 Qf1 60.Bc6+–) 59.Ba4 (59.Ba4 Kd8 60.Bc6+–) 1–0. yodamo – dandoo, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.c4 Nc6 5.Nc6 (5.Nd3 0-0–/+) 5...bc6 (5...dc6 6.Qb3 Qd6 7.e3–/+) 6.e3 0-0 7.Ba3 Ba3 (7...a5 8.Bb2–/+) 8.Na3=+ d5 9.Qa4 (9.cd5 cd5 10.Bd3 c5–/+) 9...Bd7 (9...Ne4!? 10.Bd3 Nc5–/+) 10.Be2=+ Ne4 11.0-0 (11.Qa5 Rb8 12.0-0 Rb2 13.cd5 Rd2 14.dc6 Re2 15.cd7 Qd7=) 11...Nd2 12.Rfd1 Ne4 13.Qc2 Qe7 (13...Nf6 14.Rac1=+) 14.cd5 cd5 (better 14...Bf5 15.Bf3 Rfe8=) 15.Qc7? (15.Rd5 Ba4 16.Qc4= (worse 16.Qa4 Nc3 17.Qc4 Nd5–/+)) 15...Rfc8–/+ (15...Qa3?! 16.Qd7 Rfd8 17.Qf5=+) 16.Qa5 (16.Qb7 A) 16...Qa3?! 17.Qd7 Qb2 18.Re1=+ (18.Qd5? Nc3 19.Qd2 Ne2 20.Kf1 Qd2 21.Rd2 Nc3–+); B) 16...Rab8 17.Qd5 Ba4–+) 16...Rc5 (16...Nc3 17.Ba6 Rc5 18.Qb4 Nd1 19.Rd1–+) 17.Qb4? (17.Qe1!?–/+) 17...Nc3–+ 18.Rd2?? (better 18.Bf3 Nd1 19.Rd1–+) 18...Ne2 (18...Ne2 19.Re2 Rc1 20.Rc1 Qb4–+) 0–1. Portnoy,Yuriy (1975) – Kolosov,Anatoly (1925), Zavolje, 2009. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.Nd3 Nc6 5.e3 d5 6.Nb4 Nb4 7.Ba3 c5 8.c3 Nc6 9.Bc5 Ne4 10.Ba3 Qh4 11.g3 Qf6 12.f3 Ng5 13.f4 Ne4 14.Bg2 Be6 15.Qc2 Qg6 16.d3 Nf6 17.0-0 Bf5 18.e4 de4 19.de4 Bg4 20.Nd2 Be2 21.Rfe1 Ba6 22.Nb3 0-0-0 23.Nc5 Bc4? 24.Qa4 Be6 25.f5 Qh5 26.fe6 Ng4 27.h3 Nge5 28.Qb5 Na5 29.g4 Nf3 30.Bf3 Qh3 31.Bg2 Qc3 32.Rac1 Qd4 33.Kh1 Kb8 34.e7 Rdg8 35.Nd7 Qd7 36.Qd7 Ka8 37.Rc5 Nc6 38.e5 Rc8 39.Qb7! Kb7 40.Rb1 Kc7 41.Bc6 Rcd8 42.Ba4# 1–0. GLChess210 – Cilian409b, computer chess game, 2000.

4.e3 0-0 5.c3 Be7 6.d4 d6 7.Nf3 Re8 8.Bd3 Bf8 9.0-0 Nc6 10.Nbd2 d5 11.a4 Ne4 12.Qc2 f5 (12...Bf5 13.Ba3=) 13.a5 a6 14.g3 g5 15.Qb3 Kh8 (15...Rb8 16.c4 Be6 17.cd5 Bd5 18.Bc4 Bc4 19.Qc4 Kh8 20.Qf7=) 16.c4 dc4 17.Bc4 Bg7 18.Bf7 Rf8 19.Bd5 (19.Bb2 Ra7=) 19...Nd6 (19...Na5 20.Ra5 c6 21.Be4 fe4 22.Ng5 Qa5 23.Nf7 Rf7 24.Qf7 Bh3 25.Qb7 Rf8=) 20.Nc4 (20.Bc6!? bc6 21.Ba3+=) 20...Nc4= 21.Qc4 Na5 22.Ra5 c6 23.Qc5 (better 23.Bd2 cd5 24.Rd5=) 23...b6?? (better 23...cd5 24.Qd5 Qd5 25.Rd5 g4–/+) 24.Qc6+– Ra7 25.Ba3?? (better 25.Ra1+–) 25...Rf6+= 26.Qc4 Rc7 27.Qb3 ba5 28.Ng5 Qd7 29.Bc5 (29.Rc1 Rc1 30.Bc1+=) 29...a4 (better 29...Bb7!? 30.Bc4 a4+=) 30.Qb8+– h6 (30...Qd5 31.Qc7 Rc6 32.Qf7 Qf7 33.Nf7 Kg8 34.Nd6+–) 31.Ne6!+– Rc5 (31...Re6 32.Be6 Combination) 32.Nc5 (32.dc5?! Re6 33.Be6 Qe6=+) 32...Qd5 33.Qc8 Rf8 (33...Kh7 34.Na4 Rc6 35.Qb7+–) 34.Qe6 (34.Qa6 f4 35.Ne6 fg3+=) 34...Qe6 35.Ne6 Rb8 36.Ra1 Rb4 37.Nc5 a5 38.Ra4 Rb5 39.Kg2 Bf8 40.Rc4 Bd6 41.Kf3 Kh7 42.h4 Kg6 43.Nd3 Kf7 44.Rc6 Ke7 45.Ne5! a4? (45...Be5 46.Rc5 Double attack (46.Rh6 Pinning; 46.Rh6 Deflection; 46.Rc5 Decoy; 46.de5 Passed pawn)) 46.Ra6 (better 46.Nc4 Rd5+–) 46...Be5 47.de5 Rb4?! (47...Re5 48.Ra4 Re6+–) 48.Rh6 Kd7 (48...Re4 49.Ra6+–) 49.Ra6 Kc7 50.e6 Kd8 51.Ra7 Ke8 (51...Re4 52.h5 Re6 53.Kf4+–) 52.h5 Kf8 (52...Re4 53.h6 Re6 54.h7+–) 53.Rf7 (better 53.Ra8 Kg7 54.e7 Re4+–) 53...Kg8 54.Rf5 a3 (54...Rb8 55.Ra5 Re8 56.g4+–) 55.Ra5 Rb3 (55...Kf8 56.Ra3 Ke7 57.Ra6+–) 56.h6 (56.Ra8 Kh7 57.e7 Rb7 58.e8Q Rf7 59.Qf7 Kh6 60.Qg6) 56...Kh7 57.e7 Rb8 58.Ra3 Kh6 59.Ra4 Kg6 60.Re4 Re8 61.Kf4 Kf6 62.g4 Kg6 63.g5 Kg7 64.Re6 Rh8 65.e8Q (65.e8Q Rh4 66.Ke5 Re4 67.Ke4 Kh7 68.Re7) 1–0. Bulcourf,Carlos (1970) – Rodriguez,Luis Jose Lucio (2105), 2018. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.e3 0-0 5.Be2 Nc6 6.Nc6 dc6 7.0-0 Bf5 8.Bb2 Qe7 9.d3 Rad8 10.c4 Rfe8 11.Qc2 a5 12.h3 Bc5 13.Nd2 b6 14.e4 Bd4 15.Bd4 Rd4 16.c5 Qc5 17.Qc5 bc5 18.Nb3 Rb4 19.Na5 Bd7 20.Rfc1 Rb2 21.Bd1 Rb5 22.Nb3+– Reb8 23.Nc5 Bc8 24.a4 Rb4 25.a5 Nd7 26.Nd7 Bd7 27.Ba4 Rd4 28.a6 Rd3 29.a7 Ra8 30.Rd1 Rd1 31.Rd1 Be8 32.Rb1 Ra7 33.Rb8 f5 34.Bc6 Ra1 35.Kh2 Kf7 36.Be8 Ke6 37.ef5 Kf5 38.Rb7 Rc1 39.g4 Ke4 40.Kg2 Rc3 41.Rb4 Ke5 42.f4 Kd5 43.Bf7 Kc5 44.Rb2 Re3 45.f5 Kd4 46.Be6 g6 47.f6 Re6 48.f7 Rf6 49.Rf2 Rf7 50.Rf7 h6 51.Rc7 Kd5 52.Rg7 g5 53.Rg6 Kd4 54.Rh6 Ke4 55.Kg3 Ke3 56.h4 gh4 57.Kh4 Kd4 58.g5 Ke5 59.Ra6 Ke4 60.g6 Kf4 61.g7 Kf5 62.g8Q Ke4 63.Qc4 Kf3 64.Ra3 Kf2 65.Qc2 Ke1 66.Ra1 1–0. GLChess213 – Ozwald043, computer chess game, 2001.

4.e3 0-0 5.Be2 d5 6.c4 dc4 7.Bc4 Nc6 (7...Nfd7!? 8.Nd7 Nd7=+) 8.Nc6= bc6 9.Qb3 (9.Qa4 Bd6+=) 9...Bd6 (9...Rb8 10.Qa4=) 10.0-0 Qe7 11.Nc3 Ne4 (11...Bd7 12.Rb1+=) 12.Ne4 Qe4 13.Bb2 Be6 14.Bd3?? (14.Qc3!? Qg6 15.Be6 fe6 16.Qc6+–) 14...Qh4 (better 14...Bh2 15.Kh2 Qh4 16.Kg1 Bb3 17.ab3 Rfd8–+) 15.g3=+ Bb3 16.gh4 Rad8?? (better 16...Bd5=) 17.ab3+– Bb4 18.Be4 Rd2 19.Ba3 (19.Bc1 Rd6 20.Ra7 c5+–) 19...c5 (19...a5 20.Rfc1+–) 20.Bb4 (20.Bc1 Rd7 21.Ra7 f5+–) 20...cb4 21.Ra7 Rb2 (21...f5 22.Bc6+–) 22.Bd5 c6 23.Bc4 Rc8 (23...Rd2+–) 24.Rf7 Kh8 25.Rd1 h6 (25...Ra2 26.Rdd7 Ra5 27.Rg7+–) 26.Rdd7 Rb1 27.Kg2 Rb2 (27...Rc1 28.Rg7 Rc4 29.Rh7 Kg8 30.bc4 Rb8+–) 28.Rg7 Rd8 (28...Rf2 29.Kf2 Rf8 30.Ke2 Rf2 31.Kf2 h5 32.Rg8) 29.Rh7 1–0. aravind555 – husniinthehouse, lichess.org, 2017.

4.e3 0-0 5.Be2 d6 6.Nf3 Nc6 7.0-0 Bf5 8.Bb2 Re8 9.d3 d5 10.Nbd2 Qe7 11.Rb1 Rad8 12.Ba1 (12.a3 Ba3 13.Ba3 Qa3 14.Rb7 Rb8=) 12...Bc8 13.Nb3 Bd6 14.Re1 Ng4 15.Nbd4 Nd4 16.Bd4 c5 17.Bc3 b6 18.Bf1 Bd7 19.Qc1 Bc6 20.h3 Ne5 21.Ne5 Be5 22.Be5 Qe5 23.Qa3 Qe7 24.g3 g6 (24...d4 25.ed4 Qd7 26.c4 (worse 26.dc5 Qd5 27.Re4 Re4 28.de4 Qe4–+) 26...cd4 27.Bg2 Bg2 28.Kg2=) 25.Bg2 Rd6 26.c3 d4 (26...Kg7 27.d4=) 27.Bc6 Rc6 28.c4 (better 28.cd4!? cd4 29.Qe7 Re7 30.ed4 Re1 31.Re1=) 28...Re6–/+ 29.e4 f5 30.f3 Qg5 31.Kh2 Qd2 32.Kg1 Qg5 33.Kh2 f4 34.Rg1 fg3 35.Rg3 Qd2 36.Kh1 Rf8 (36...Qf2 37.Rbg1–/+) 37.Rb2 (37.Qa7!? Qd3 38.Rb6 Qd1 39.Kh2 Qd2 40.Rg2 Qf4 41.Kg1 Qe3 42.Kh2 Rb6 43.Qb6 Rf3 44.Qe6 Kg7 45.Qe7 Rf7 46.Qc5 Qf4 47.Kg1 Qe4 48.Kh2–/+) 37...Qc1–/+ 38.Kg2 Ref6 (38...Re5!? 39.Qb3–/+) 39.Qb3 Qe3 40.Rf2 Kg7 41.Qc2 h5 (41...Qf4 42.Rg4 Qc7 43.Qa4–/+) 42.Qd1 (better 42.f4 Qe1 43.f5+=) 42...h4–/+ 43.Rg4 Rf4 44.Qf1 (44.Rf4 Qf4 45.Qf1 a6–/+) 44...Rg4 45.hg4 g5 46.Kh1 Qf4 47.Qe2 Qg3 (47...a6 48.Qc2–+) 48.Qd2 Kg6 49.Qe2 Qh3 50.Kg1 Rf7 51.Rf1 Qg3 52.Kh1 Qf4 53.Rf2 h3 (53...Qe3!? 54.Qf1–+) 54.Qf1 h2! 55.Qe2 (55.Rh2 Qf3 Double attack (55...Qf3 Deflection)) 55...Qg3 (55...Rh7 56.Qd2 Qg3 57.Rf1–/+) 56.Rf1 (56.Rh2? Rf3 57.Rg2 Qh3 58.Kg1 Rd3–+) 56...Qf4 57.Rf2 (57.Qh2?? Rh7 58.Qh7 Kh7–+) 57...Qc1 (better 57...Rf8–/+) 58.Kh2?? (58.Qf1 Qe3 A) 59.Rh2? Rf3 (59...Qf3?! 60.Qf3 Rf3 61.Rd2–+) 60.Qd1 Qd3 61.Qd3 Rd3–+; B) 59.Kh2=) 58...Rh7 59.Kg3 Qf4 (59...Qf4 60.Kg2 Qh2 61.Kf1 Qh1) 0–1. Arigoni,Bruno – Mantovani,Renzo (2370), Mendrisio op, 1989. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.e3 Nc6 5.Nd3 0-0 6.Bb2 d5 7.Rg1? (better 7.Be2!?=+) 7...Qd6 8.g4 (8.g3 Bg4 9.f3 Bf5–/+) 8...Qh2–+ 9.Rg2 Qh1?? (better 9...Qh4–+) 10.Bf6 gf6 11.Nf4? (11.Nb4 Nb4 12.a3 Nc6=) 11...Ne5 (11...d4 12.c3 Bd6 13.Qf3 de3 14.de3–+) 12.g5? (12.Nd5 Ba5 13.Nf6 Kg7=) 12...fg5 (better 12...Kh8!? 13.gf6 Rg8–+) 13.Rg5=+ Ng6 14.Rh5 (14.Nd5 Bd6 15.Qe2=+) 14...Qg1?? (better 14...Nh4 15.Qe2 Nf3 16.Kd1 Qg1–+) 15.Nd5+= Bg4?? (better 15...Bd6 16.Nbc3 f5+=) 16.Nf6+– Kg7 17.Ng4 f5 18.Nh2 f4 19.Qg4 Qh1 (19...Qg4 20.Ng4 fe3 21.Ne3 a6+–) 20.Nf3 Qh5 21.Qh5 fe3 22.fe3 Rae8 23.c3 Bd6 24.Bd3 Bg3 (24...Rf6 25.a4+–) 25.Kd1 1–0. yodamo – theredflash06, ChessWorld.net, 2010. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.e3 d5 5.Be2 0-0 6.0-0 Nc6 7.Nc6 bc6 8.c4 Bf5 9.Qa4 Rb8 10.Ba3 Qd6 11.Bb4 (11.Qa7? Ba3 12.Qa3 Rb1 13.Qd6 Rf1 (worse is 13...cd6 14.Rfb1 Bb1 15.Rb1+/–) 14.Kf1 cd6 15.cd5 Nd5–+) 11...Rb4 12.Qa5 Rb2 13.Rc1 g6 14.Na3 Rfb8 15.cd5 Qd5 16.Nc4 (worse is 16.Qc7 Qd2 17.Re1 Nd5–/+; worse is 16.Qa7 Qd2 17.Re1 Be6=) 16...Qa5 17.Na5 Rd2 18.Bf1 Be6 19.f3 Rbb2 20.a4 Kg7 21.Nc6 Nd5 22.Ra3 a6 23.h4 Rdc2 24.Rc2 Rc2 25.Nd4 Rc1 26.e4 Nb4 27.Ne2 Rc4 ½–½. Barr,Clark (1700) – Santos,Sebastian (1705), CL4–2009.11.09, 2009. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.e3 d5 5.Be2 0-0 6.0-0 Bd6 7.Nf3 c5 8.c4 (8.Bb2 Nc6=+) 8...d4 (8...Be6 9.Qb3=+) 9.ed4 cd4 10.d3 Nc6 11.Nbd2 h6 (11...Re8 12.Bb2=+) 12.Nb3= The isolani on d4 becomes a target 12...Re8 13.Rb1 b6 14.h3 Bf8 15.a3 Rb8 16.Bb2 The pressure on the isolated pawn grows (16.Re1 Bf5=) 16...Bc5 17.Bc1 Nd7 18.Bf4 (18.Re1 Bb7=) 18...Rb7 (worse 18...Ba3 19.Nfd4 (19.Bb8?! Ndb8 20.Re1 Bb4=) 19...Nd4 20.Nd4+–) 19.Re1 Qf6 20.Bc1 Nde5 21.Nc5 (21.Ne5 Ne5 22.f4 Ng6=+) 21...bc5=+ 22.Rb7 Bb7 23.Nh2 Re7 24.Bf1 (24.f4 Ng6=) 24...Kh7=+ 25.Re2 Ng6 (25...Qf5 26.f4 Ng6 27.Qb3 Re2 28.Be2=+) 26.Re7 Nce7 27.Qh5 Qd6 28.Nf3 f6 (28...Kg8 29.a4=) 29.Bd2 (29.Qg4 Qa6=) 29...Nh8 (29...Qb6!?=+) 30.Be2 Qc6 31.Ne1 Qb6 32.Bd1 Nhg6 33.Bc2 Bc8 34.Bc1 (34.a4 Nc6=) 34...Nf5 35.Qe2 Bb7 36.Bd1 Nfh4 37.Qb2 (37.Ba4 Qb1 38.Qd1 Ne5=) 37...Qe6 (37...Qb2!? 38.Bb2 Nf4=+) 38.Qe2 (38.Bd2 Qe7=) 38...Qc6 (38...Qe2 39.Be2 a6 40.Bd2=) 39.Qg4 (39.Qh5 Qb6= (worse 39...Ng2 40.Bf3 Ne1 41.Bc6 Bc6 42.Qc5+–)) 39...Qb6 40.Qe2 Ba8 (40...Ne5=) 41.Qb2 (41.Ba4 Qb7 42.f3 Ne5=) 41...Qe6 (41...Qb2 42.Bb2 Nf4=) 42.Qe2= Qd7 (42...Qe2 43.Be2 a6 44.Bg4=) 43.a4 (43.Bd2 Bc6=) 43...Qb7 44.Qb2 Qc6 45.Kf1 (45.Qb5 Ne5=) 45...Qc7 (worse 45...Ng2 46.Bf3 Qa4 47.Bg2 (worse 47.Ba8 Ne1 48.Qe2 Qc2=+) 47...Bg2 48.Kg2 (worse 48.Ng2 Qd7=+) 48...Nh4 49.Kg3 Nf5 50.Kh2+=) 46.Kg1 Bc6 47.Qe2 (47.Qd2 Ne5 48.f4 Nd7=) 47...Ne5 (47...a6 48.Qd2=+) 48.f4 Neg6 49.g3 Nf5 50.Kf2 (50.Kh2 Nge7=+) 50...Nf8 51.h4 (51.Bd2 Qd7=+) 51...g6 (51...Nd6 52.Kg1–/+) 52.h5=+ g5 53.Kg1 Ng7 54.Qf2 Qd6 (54...Nfe6 55.Ng2=) 55.g4 (55.a5 Nfe6=) 55...Nfe6 56.fg5 (56.f5 Nd8=) 56...fg5 57.a5 Qc7 58.Bd2 Nd8 (58...Nf4 59.Bf4 gf4 60.Bf3 Bf3 61.Qf3 Qa5 62.Ng2=) 59.Qh2 Nge6 60.Qc7 Nc7 61.Nf3 (61.Bf3 Kg7=) 61...Nf7=+ 62.Be1 (62.Kf2!?=+) 62...Ne6–/+ 63.Nd2 (63.Bd2 Nf4 64.Bf4 Bf3 65.Bf3 gf4–/+) 63...Ne5 64.Bg3 Nf4 (64...Nd3? 65.Bc2 Nef4 66.Bf4 gf4 67.Bd3 Kg7 68.Bf5+–) 65.Bf4 (65.Kf1 Kg7–/+) 65...gf4 (65...Nd3?? 66.Bb8 Nb2 67.Bc2 d3 68.Bb1+–) 66.Be2 Kg7 (66...f3 67.Bf1–+) 67.Kf2 (67.Nb3 f3 68.Bf1 Bd7–/+) 67...Kf6 (67...Kf7 68.Nb3 f3 69.Bf1 Ng4 70.Kg3=+) 68.Nb3 Kg5 (better 68...f3!? 69.Bf1 Bd7–/+) 69.Nc5= f3 (69...Ng4 70.Bg4 Kg4 71.Ne6+–) 70.Bf1 Kg4 (70...Kh4 71.Ne6 Ng4 72.Ke1 Bd7 73.Nd4 Kg3=+) 71.a6 (71.Ne6!?=) 71...Bd7=+ (71...Kh5?! 72.Kg3=) 72.Ne4 (better 72.Nb3=+) 72...Kf4–+ (72...Kh5?! 73.Kg3=+) 73.Nf6 Ng4 (73...Ng4 74.Ng4 Bg4–+) 0–1. pvanr (2290) – objorn (2415), gameknot.com, 2016. (=1.b4 Nf6 2.Nf3 e5 3.Ne5 Bb4)

4.e3 d5 5.Be2 0-0 6.0-0 Bf5 7.Bb2 Nbd7 (7...Re8 8.Nf3+=) 8.Nd7 Nd7 9.f4 Qe7 10.g4 Be4 11.d3 Bg6 12.f5 Qe3 13.Kh1 Rae8 14.Bf3 Bf5 (14...c6 15.fg6 fg6 16.a3+=) 15.gf5 c6 16.a3 Be7 17.Qd2 Bf6 18.Bf6 (18.Ra2 Qc5+=) 18...Nf6 19.Qe3 (19.d4 Re7+=) 19...Re3 20.Nd2 Rfe8 21.Kg1 (21.d4 a5+=) 21...R3e5 (21...b6 22.d4+=) 22.Rab1 b5 23.Nb3 a6 24.Kf2 (24.Nd4 c5 25.Nb3 d4+=) 24...Kf8 (24...h6 25.c3+=) 25.h3 Nd7 26.Bg4 h5 (26...Nf6 27.Rbe1+/–) 27.Bh5 (27.d4 Re3 28.Bh5 Rh3+/–) 27...Rf5+= 28.Bf3 Ne5 (28...c5 29.Rbe1+=) 29.Kg3 Nf3 30.Rf3 Rg5 31.Kf2 Rge5 32.Kg2 (32.Rf1 R5e7+/–) 32...g5 (32...Re2 33.Rf2+/–) 33.Rbf1+/– Re2 34.R1f2 Rf2 35.Kf2 Kg7 (35...Ke7 36.Nc5+/–) 36.Nd4 c5 37.Nb3 Rc8 38.Rf5 c4 39.Nd2 cd3 40.cd3 f6 41.Rd5 Rc3 42.a4! ba4 43.Rd7 Kg8 44.Ne4 Rc2 45.Ke3 Rc6 46.Rd5 Kf7 47.Ra5 Kg6 48.d4 Rb6 49.Nc5 Kh5 50.d5 Kh4 51.Ra4 Kh3 52.Rd4 (worse is 52.Ra6 Rb5 53.Kd4 g4+–) 1–0. Torre,Isidro (1875) – Ventimiglia,Chuck (1745), IECC, 1998. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.e3 d6 5.Nd3= Nc6 6.Be2 Ne4 (6...Be6 7.0-0=) 7.0-0 (worse 7.Nb4 Qf6 (7...Nb4?! 8.Bb2=) 8.Bf3 Qa1–/+) 7...Qg5 (7...Ba5 8.f3 Nf6 9.Na3=) 8.Nb4+= Nb4 9.d3 (9.c3 Nc6=) 9...Bh3 (9...Qf6!? 10.d4 0-0=) 10.Bf3+– Nf6 11.e4 (11.Bb7 c6 12.Qf3 Bg4+–) 11...Qg6+= 12.c3 (12.Nc3 Nc6+=) 12...Nc6 13.Re1 (13.Na3 a6=) 13...0-0 (13...Ne5 14.Na3=) 14.Nd2 Ne5 15.d4 Nf3 16.Qf3 Bg4 17.Qg3 Nh5 18.Qe3 Rae8 19.f3 Bh3 20.g4?? (better 20.Re2=) 20...f5–+ 21.Kh1 (21.g5 fe4 22.fe4 Nf4–+) 21...fg4 (21...fe4 22.fe4 Bg4 23.c4–+) 22.Rg1 d5 (22...Nf4 23.fg4 Bg4 24.c4–+) 23.e5 (23.fg4 Nf4 (23...Bg4?! 24.h3=+) 24.Rb1 de4 25.Rb7 Nd3–/+) 23...Nf4–+ 24.Nf1? (24.fg4 Nd3 25.Rg3 Nf2 (25...Nc1? 26.Rc1 Bg4 27.Rcg1+–) 26.Kg1 Bg4–/+) 24...Bg2! 25.Rg2 Ng2 26.Kg2 Rf3 (26...gf3 27.Kf2–+) 27.Qe1 (better 27.Qd2!?–/+) 27...Ref8–+ 28.Ng3 h5 (better 28...Qc2!? 29.Bd2 Rf2 30.Qf2 Rf2 31.Kf2 Qd2 32.Ne2 Qh6–+) 29.Ba3–/+ Qc2 (29...h4 30.Bf8 hg3 31.hg3–+) 30.Kg1 R8f4 (30...h4 31.Ne2 R8f5–+) 31.e6?? (31.Bc1 Rf7 32.e6=+ (32.Nh5?? Rf1 33.Qf1 Rf1 34.Kf1 Qc3–+)) 31...Rf2–+ (31...Rf2 32.Ne2 Re2 33.Qe2 Qe2–+; 31...Rc3?? 32.e7 Rg3 33.hg3+–; 31...Qc3 32.Qc3 Rc3 33.Ne2+–) 0–1. tsodikovich (1790) – ginaboy (1635), gameknot.com, 2017. (=1.b4 Nf6 2.Nf3 e5 3.Ne5 Bb4)

4.g3 0-0 5.Bg2 Re8 6.Nd3 Ba5 7.0-0 d6 8.Bb2 c6 9.c4 Bf5 10.Nf4 Nbd7 11.d3 Bb6 12.Nc3 Qe7 13.e4 Bg4 14.Qc2 Ne5 15.h3 Nf3 16.Kh1 Nd4 17.Qd2 Bf3 18.Na4 Bg2 19.Kg2 Ne6 (19...Bc5 20.Rab1=+) 20.Nb6 ab6 21.Ne6 fe6 22.Qe3 Nd7 23.a3 Nc5 24.d4 Na4 25.Bc1 c5 26.Ra2 Qc7 27.Rd1 d5 28.dc5 (28.ed5 ed5 29.Qb3 Qf7=) 28...Qc5= 29.Rc2 dc4 30.Qc5 bc5 31.Rc4 b5 32.Rc2 Red8 33.Rcd2 (33.Rd8 Rd8 34.Be3 c4=+) 33...Rd2 34.Rd2 b4 (better 34...c4=+) 35.ab4+– cb4 36.Rd7 (36.f4 Rc8 37.Ra2 Nc3=+) 36...b3 37.Rb7 Nc5 38.Rb5 Nd3 39.Be3 b2 40.Bd4 Ra2 41.Kf3? (better 41.Rb8 Kf7 42.Rb7 Ke8 43.Bg7–/+) 41...e5!–+ 42.Ke3 (42.Be5 Ne5 Promotion) 42...Ra3 (42...ed4 43.Kd3 Kf7 44.Kd4+–) 43.Bb6?? (43.Bb2 Nb2 44.Ke2–+) 43...Nb4 (43...Nb4 44.Ke2 b1Q 45.Be3 Qe4 46.Rb8 Kf7 47.Rb5 Ra2 48.Kd1 Qh1) 0–1. Uddin,Md Saif (1985) – Md Shawket Bin,Osman Shaon (2110), Asian Zonal Chess Championships Zone, 2019. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

4.g3 0-0 5.Bg2 Re8 6.Nf3 d5 7.0-0 Bg4 8.h3 Bf3 9.Bf3 Nbd7 10.c3 Bd6 11.d3 c6 12.Nd2 Qa5 13.Qc2 Qc7 14.Nb3 Re7 (14...Rad8 15.Bg2+=) 15.Nd4= g6 16.Bg2 a6 17.Rb1 Rae8 18.e3 Ne5 19.c4 dc4 20.dc4 Ned7 21.Qb2 Rb8 22.Qc2 Rbe8 23.Ne2 Ne4 24.Bb2 Ndc5 25.Bd4 f5 26.Nf4 Be5 27.Rfd1 Bg7 (27...Bd4 28.Rd4 Qa5 29.Rbd1=) 28.Qb2 (better is 28.Bg7!? Kg7 29.Nd3+=) 28...Na4+= 29.Qb3 Nac3 (29...Nec3 30.c5 Kf8 31.Bg7 Kg7 32.Rd4+=) 30.c5+= Kh8 31.Be4 Ne4 32.Qc4 Be5 33.Rb3 Bd4 34.Qd4 Kg8 35.Qc4 Kg7 36.Rbd3 Qe5 37.Rc1 Qb2 38.Rc2 Qb5 39.Qd4 Kh6 40.Rd1 Qa5 41.Kg2 Re5 42.Rdc1 Qc7 43.Rd1 Qe7 44.Rdc1 Rd8 45.Qb4 b5 46.Qa3 Qb7 47.Qa5 Rd7 48.Qb6 Qc8 49.Ne2 Nf6 50.Nd4 Rc7 51.Qa5 Nd5 52.Qd2 Kg7= 53.Nf3 Re8 54.Qd4 Kg8 55.Ng5 Rce7 56.h4 h6–/+ 57.Nf3 Re4 58.Qb2? f4!–+ 59.Nd2 Rb4 60.Nb3? fg3 61.fg3 Re3 62.Re2 Nf4! 63.gf4 Qg4 64.Kf1 Rf4 65.Rf2 Qh3 66.Kg1 Rg3 67.Rg2 Rg2 68.Qg2 Qe3 69.Kh1 Rh4 70.Qh2 Qf3 71.Kg1 Rg4 (71...Rg4 72.Qg3 Rg3 73.Kh2 Qg2#) 0–1. Grigoriev,A (2280) – Odeev,H (2410), Troya Open, Canakkale TUR, 2010. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.a3 Be7 6.e3 c5 7.Be2 d6 8.Nf3 d5 9.d3 Qb6 10.Qc1 Nc6 11.Nbd2 Rd8 12.0-0 Bf5 13.Rb1 Qa6 14.Re1 Rac8 15.e4 Bg6 16.Nh4 Nd4 17.Ng6 hg6 18.Bd4 cd4 19.Rb3 Rc3 20.e5 Nd7 21.Bg4 Bg5 22.Qd1 Bd2 23.Qd2 Rb3 24.cb3 Nc5 25.b4 Ne6 26.Be6 Qe6 27.Qf4 Qb6 28.h3 Rc8 29.Qg4 Re8 30.Rc1 Re5 31.Rc8 Kh7 32.Qh4 Rh5 33.Qe7 Qe6 34.Re8 g5 35.Qe6 fe6 36.Re6 Rh6 37.Re5 Ra6 38.Rd5 Ra3 39.Rd4 Ra1 40.Kh2 Ra4 41.Re4 Ra6 42.Rd4?? Ra4 43.Rg4 Ra3 44.Rd4?? Ra4= ½–½. jasa (2515) – average_at_chess (2465), ChessWorld.net, 2002.

5.a3 Be7 6.e3 Re8 7.d4 (7.Nc3 d5=) 7...d5 (7...c5 8.Bc4 d5 9.Bb5=+) 8.Bd3 c5 9.c4 (9.0-0 Qb6 10.Qc1 Nc6=+) 9...cd4-/+ 10.Bd4 Nc6 (10...Bd6 11.Nf3 Nc6 12.Nc3-/+) 11.Nc6=+ bc6 12.cd5 cd5 (12...c5!? 13.Bf6 Bf6=) 13.0-0+= a5 (13...Bd7 14.Nc3+=) 14.Nc3 Ba6 15.Ba6 Ra6 16.Qd3 Rc6 17.Qb5 Qd7 ½-½. Mr_strange (2110) - Lance5500 (2320), lichess.org, 2017. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.e3 d5 6.Bd3 Bd6 (6...Re8 7.0-0 Bd6 (7...a6 8.f4 Nbd7 9.Qf3 Bd6 10.Nd7 Bd7) 8.f4 Nbd7 9.Nd7 Bd7 10.Qf3 Ne4; 6...Nbd7 7.Nd7 (7.Qf3 Nc5 8.Bb5 Nce4 9.a3 Bd6 10.0-0 c6) 7...Bd7 8.Qf3 Be7 9.0-0 c5 10.Nc3 Bg4) 7.0-0 (7.f4 Nbd7 (7...Re8 8.0-0 Nbd7 9.Nd7 Bd7 10.Qf3 Ne4) 8.0-0 Re8 9.Nd7 Bd7 10.Qf3 Ne4) 7...Re8 8.f4 Nbd7 9.Nd7 Bd7 (worse is 9...Nd7 10.Qh5 Nf6 11.Bf6 Qf6 12.Qh7 (worse is 12.Bh7 Kf8 13.Nc3 g6 14.Qd5 Qg7=) 12...Kf8 13.Nc3+=) 10.Be2 (10.Qf3 Ne4) 10...c6 11.Nc3 Bf5 12.Rb1 Bc7 13.Bf3 (13.g4 Be6 14.g5 Ne4+=) 13...Ne4 (13...d4 14.Ne2 de3 15.de3 Qd1 16.Rbd1 Re3 17.Bf6 gf6 18.Nd4–/+) 14.Ne4 de4 15.Bg4 Qd7 16.Bf5 Qf5 17.Bd4 b6 18.Qe2 Rad8 19.Bc3 b5 20.a4 a6 21.Rb2 Re6 (worse is 21...ba4 22.Qa6 Ra8 23.Qc6=) 22.Ra1 Red6 23.ab5 (23.Rba2 Bb6+=) 23...cb5+= 24.Rba2 Qg6 25.f5 Qf5 26.Ra6 Ra6 27.Ra6 Be5 28.Bb4 Rc8 29.g3 h6 (worse is 29...Rc2 30.Ra8 Rc8 31.Qh5+/–) 30.c3 Rb8 31.Ra7 ½–½. Rosner,Dirk – Gabor, 1999. (=1.b4 Nf6 2.Nf3 e5 3.Ne5 Bb4 4.Bb2 0-0)

5.e3 d5 6.Be2 Bf5 7.0-0 Nbd7 8.Nf3 c5 9.d3 Qb6 10.c3 Ba5 11.Qb3 Rfe8 12.Nbd2 Qc6 13.Rfe1 a6 14.c4 b5 15.cd5 Nd5 16.Red1 Nf4 17.Bf1 Ng6 18.Be2 Qb6 19.a4 h6 20.Qc2 Rac8 21.Qb3 Be6 (22.Qc2 b4=). SkyNet – Crapov, ChessWorld.net, 2006.

5.e3 d6 6.a3 (6.Nd3 Ba5 A) 7.Be2 Nc6 (7...Re8 8.0-0 Nc6 9.Nc3 Ne5 10.Ne5 de5; 7...Bf5 8.0-0 Re8 9.Nc3 Nc6 10.Rb1 Ne5; 7...Be6 8.0-0 Nc6 9.Bf3 Nd5 10.Bd5 Bd5; 7...Qe7 8.0-0 Nc6 9.Nc3 Bf5 10.Rb1 Ne5) 8.0-0 Re8 9.Na3 d5 10.Nf4 Ne4; B) 7.Qf3 Nbd7 8.Be2 Re8 9.Qg3 d5 10.0-0 c5) 6...Bc5 (6...de5 7.ab4 Qd6 (7...Re8 8.d4 e4 9.Qd2 a6 10.c4 Nc6; 7...Nbd7 8.Qf3 a6 9.Be2 Re8 10.Nc3 Qe7) 8.Na3 Qe7 9.b5 Rd8 10.Qf3 a6) 7.Nf3 (7.Nd3 Nbd7 (7...Bb6 8.Be2 Qe7 9.Nc3 Re8 10.Rb1 Bf5; 7...Nfd7 8.Qg4 f6 9.Qh4 c6 10.Be2 b5) 8.Qf3 Bb6 9.Be2 Re8 10.Nc3 c6) 7...Bf5 (7...d5 8.Be2 Re8 9.0-0 Bd6 10.Nc3 a6; 7...Re8 8.d4 Bb6 9.Bd3 Ba5 10.Nbd2 Bg4) 8.c4 (8.d4 Bb6 9.Bd3 Bd3 10.Qd3 d5) 8...Nbd7 (8...Bb6 9.Be2= Re8 10.0-0 Nc6; 8...d5 9.Qb3 b6 10.cd5 Nd5) 9.Be2 (9.d4 Bb6= 10.Bd3 Bd3) 9...h6 (9...d5 10.d4 Be7 11.0-0=) 10.0-0 (10.d4 Bb6) 10...c6 (10...d5=) 11.Nc3 Bb6 12.d4 Qe7 13.a4 (13.Nh4 Bh7=) 13...a5 (13...Ba5 14.Rc1=) 14.Bd3+= Bd3 15.Qd3 Rfe8 16.Rab1 Rab8 17.Ba3 Qe6 18.Rb3 Bc7 19.Rfb1 b6 20.d5 cd5 21.cd5 Qe7 22.Nd4 Ne5 (22...Nc5 23.Qf5 Nb3 24.Nc6+=) 23.Qe2 Rbc8 24.Rd1 (24.e4 Ng6+/–) 24...Nfd7+= 25.Nc6 (25.e4 Qf6 26.Ncb5+/–) 25...Qf6 (better is 25...Nc6 26.dc6 Nc5+=) 26.Na7+– Rcd8 27.Nab5 Bb8 28.Ne4 Qh4 29.Ned6 Qa4 30.Rc3 Bd6 31.Nd6 b5 32.Nb5 Nc4 33.Rc4 Qb5 34.Qc2 Ne5 35.Rc5 Qd7 36.h3 a4 37.Rd4 Qb7 38.Rb4 Qd7 39.Rd4 Qb7 40.d6 Re6 41.Rc7 Qb3 42.Qb3 ab3 43.Rb7 Nc6 44.Ra4 1–0. Anastasian,Ashot – Mastrokoukos,Georgios, Athens, 1993. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.Bb2 0-0)

5.e3 Qe7 6.Qf3= Nc6 (6...Qe6!?=) 7.Nc6+= dc6 8.Bf6 Qf6 9.Qf6 gf6 10.Bd3 Be6 11.0-0 Rad8 12.f4 f5 13.g4 fg4 14.f5 Bc8 15.Rf4 Bd6 16.Rg4 Kh8 17.Nc3 Rg8 18.Rg8 Rg8 19.Kh1 b5 20.Rg1 Rg1 21.Kg1 Kg7 22.Kg2 b4 23.Ne2 a5 24.e4 c5 25.Bb5 Bb7 26.d3 Kf6 27.c4 c6 28.Ba4 Ke5 29.Kf3 Be7 (29...Ba8 30.h3=) 30.Nc1+= Bd8 31.Nb3 White fights for the Initiative 31...Bb6 32.Kg4 Kf6 33.Kh5 Ke5? (better is 33...Kg7+/–) 34.Kh6+– Kf4 35.Kg7 Ke3 36.Kf7 Kd3 37.e5 Ba8 (37...Bc8 38.e6 Kc4+–) 1–0. Rosner,Dirk – Rueppel,Norbert, DESC, 2000.

5.e3 Re8 6.a3 Bf8 7.d4 d5 8.Bd3 c5 9.c4 Nc6 (9...cd4 10.ed4 dc4 11.Bc4=+) 10.Nc6 bc6 11.0-0 Ba6 (11...Rb8 12.Ra2=+) 12.Qc2 (12.Nd2 Rb8 13.Rb1 Ne4 14.Ne4 de4+=) 12...Rb8 (12...dc4 13.Bc4 Bc4 14.Qc4=+) 13.Nd2= Ne4 14.Rfc1 (14.Ne4 de4 15.Be2 Qb6=) 14...Qh4 (better 14...Nd2!? 15.Qd2 cd4 16.ed4 g6-/+) 15.g3= Qf6 16.Ne4 de4 17.Bf1 (17.Be4? Re4 18.Qe4 Rb2-+) 17...Qg5 (17...cd4 18.Bd4 Qe6 19.Ba7=) 18.Rab1+= h5 (18...Bd6 19.Bg2 Qe7 20.Qa4+=) 19.h4 (19.Bg2 cd4 20.Bd4 c5 (20...Ba3? 21.Rb8 Rb8 22.Ra1+-) 21.Rb8 Rb8+=) 19...Qg6 20.Qa4 Rb6 (20...cd4 21.Bd4 (21.Qa6 de3 22.Qa7 c5 23.fe3 Qg3 24.Kh1 Re6 25.Qb8 Qb8-+) 21...c5 22.Rb8 Rb8 23.Be5+=) 21.Bc3+= Reb8 22.Rb6 Rb6 23.Ba5 (23.Rd1 cd4 24.Rd4 Kh7+/-) 23...Rb2+= 24.Bc3 Rb6 25.Qa5 Qf5 (25...Qd6+=) 26.dc5 (better 26.Bb4! Bc8 27.dc5+/-) 26...Qc5= (26...Bc5?? 27.Bb4 Bc8 28.Qc5 (worse 28.Bc5 Rb2 29.f4 Kh7+-) 28...Qc5 29.Bc5+-) 27.Bg2 (27.Rd1!? Qa5 28.Ba5=) 27...f5=+ (worse 27...Qa3 28.Ra1 Qa5 29.Ba5=) 28.Bb4 (28.Qc5!? Bc5 29.Bd4 Bd4 30.ed4=+) 28...Qa5-/+ 29.Ba5 Rb3 30.Bh3 (30.Bb4 c5 31.Ba5 Ra3-/+) 30...g6 (30...Ra3 31.Bd8 g6 32.Bf1-+) 31.Bb4 (31.Bf1 Ra3 32.Bc3 Kf7-+) 31...c5-+ 32.Bd2 (32.Ba5 Ra3 33.Bc7 Kf7-+) 32...Ra3 33.Bf1 Kf7 34.Be2 Ke6 35.Kf1 Ra2 36.Ke1 Bd6 37.Rb1 Kd7 (37...Be5 38.Rc1-+) 38.Kd1 (38.Bc3 Bc7-/+) 38...Kc6 (better 38...Be5-+) 39.f3? (better 39.Bc3!?-+) 39...ef3 (39...Bg3!? 40.Be1 Be5 41.f4-+) 40.Bf3 Kc7 41.e4 (41.Bd5 Bg3 42.Bf7 Bh4 43.Bg6 Bc4 44.Bh5 Bd5-+) 41...Bc8 (better 41...Ra3!? 42.Bh1-+) 42.ef5 Bf5 43.Rc1?? (43.Rb5!?-+) 43...Be6 (better 43...Bg3 44.Be3 Kb6-+) 44.Bd5?? (better 44.Be1-+) 44...Bg4 45.Ke1 Bg3 46.Kf1 Rd2 47.Rb1 (47.Kg1 a5 48.Rc3 Bf2 49.Kf1 Ra2-+) 47...Bh3 48.Kg1 Bc8 (better 48...a5!? 49.Rc1-+) 49.Rf1 Bf2! 50.Kh1 (50.Rf2 Rf2 Combination) 50...Bf5 51.Kg2 Kd6 (better 51...Bh4 52.Kf3 a5-+) 52.Rf2 Rf2 53.Kf2 Ke5 54.Bf7 (54.Ke3-+) 54...Kd4 55.Kf3 Bd3 56.Kf4 a5 57.Kg5 a4 58.Be8 a3 59.Ba4 a2 60.Be8 a1Q 61.Bg6 Qc1 (61...Qg1 62.Kf6 Qg6 63.Ke7 Bf5 64.Kf8 Qf6 65.Ke8 Qg7 66.Kd8 Qd7) 62.Kh5 (62.Kf6 Qf4 63.Kg7 Qe5 64.Kf8 Bg6 65.Kg8 Qe7 66.Kh8 Qf8) 62...Bg6 (62...Be2) 63.Kg6-+ Qc4 64.h5 (64.Kf6 Qe2 65.h5 c4 66.Kg6 c3 67.Kf7 c2 68.h6 c1Q 69.h7 Qc7 70.Kg6 Qg4 71.Kf6 Qcg7) 64...Qf1 65.h6 (65.Kg7 Ke5 66.Kh7 Qg2 67.Kh8 Kf6 68.h6 Kg6 69.h7 Qa8) 65...Qg1 (65...Ke5 66.Kg7 Qf6 67.Kh7 Qf7 68.Kh8 c4 69.h7 Qf8) 66.Kh7 (66.Kf5 c4 67.Kf4 Qh2 68.Kg5 c3 69.Kf5 c2 70.Kf6 c1Q 71.Kg6 Qcf4 72.Kg7 Qhh6 73.Kg8 Qff8) 66...c4 (66...Ke5 67.Kh8 Kf6 68.Kh7 Kf7 69.Kh8 Qg8) 67.Kh8-+ c3 68.h7 Qe3 69.Kg8 Qe8 70.Kg7 Qe7 (70...Qe5 71.Kg8 Qg3 72.Kf7 Qc7 73.Kg8 Qd8 74.Kg7 Qe7 75.Kg8 Qg5 76.Kf7 Qf5 77.Kg7 Qg4 78.Kf7 Qf4 79.Kg8 Qb8 80.Kg7 Ke5 81.Kg6 Qb1 82.Kg7 Qb7 83.Kg6 Qh7 84.Kh7 c2 85.Kg7 c1Q 86.Kg6 Qg1 87.Kf7 Qg2 88.Ke7 Qb7 89.Kf8 Kf6 90.Ke8 Qe7) 71.Kg8 (71.Kg6 Qh4 72.Kg7 Ke4 73.h8Q Qh8 74.Kh8 Ke5 75.Kg7 c2 76.Kf8 c1Q 77.Kf7 Qg5 78.Ke8 Ke6 79.Kf8 Qg3 80.Ke8 Qb8) 71...Qh7! 72.Kh7 c2 73.Kg8 (73.Kg6 c1Q 74.Kf5 Qc8 75.Kf4 Qc7 76.Kf5 Qe5 77.Kg6 Ke4 78.Kf7 Kf5 79.Kg8 Kf6 80.Kh7 Qe8 81.Kh6 Qg6) 73...c1Q 74.Kh8 (74.Kf8 Qc7 75.Kg8 Ke5 76.Kf8 Kf6 77.Ke8 Qe7) 74...Qc6 (74...Qg5 75.Kh7 Ke5 76.Kh8 Kf6 77.Kh7 Qg7) 75.Kg8 (75.Kg7 Ke5 76.Kf7 Qg2 77.Ke7 Qb7 78.Ke8 Ke6 79.Kd8 Qd7) 75...Ke5 (75...Qc7 76.Kf8 Ke5 77.Ke8 Kf6 78.Kf8 Qf7) 76.Kh8 (76.Kf7 Qg2 77.Ke7 Qb7 78.Kd8 Kd6 79.Ke8 Qe7) 76...Kf5 (76...Qd7 77.Kg8 Kf6 78.Kf8 Qf7) 77.Kg8 (77.Kg7 Qe8 78.Kh7 Kf6 79.Kh6 Qg6) 77...Qc7 78.Kf8 (78.Kh8 Kf6 79.Kg8 Qg7) 78...Kf6 79.Ke8 Qc8 (79...Qe7) 0-1. Mr_strange (2125) - Lance5500 (2500), lichess.org, 2018. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.e3 Re8 6.c4 Nc6 7.f4 d5 8.Qb3 Ba5 (8...Bd6 9.Nc6 bc6 10.Be2=+) 9.cd5 (9.Nc6 bc6 10.Qa3 Rb8+=) 9...Ne5= 10.Be5 Qd5?? (better 10...Nd5 11.Bc4 c6=) 11.Bf6+- Qb3 12.ab3 Re3 13.Be2?? (13.Kd1 Rb3 14.Kc2+/- (14.Ra5?! Rb1 15.Kc2 Rf1 16.Rf1 gf6+=)) 13...Bg4= 14.Ra5 (better 14.0-0 Re2 15.Ra5 gf6 16.Nc3+=) 14...Re2-+ 15.Kf1 gf6 16.h3 Rae8 17.hg4 (17.Rh2 Re1 18.Kf2 R8e2 (18...Rb1?! 19.hg4 Re4 20.g3-/+) 19.Kg3 Be6-+) 17...Re1 18.Kf2 Rh1 19.Nc3 Rc1 (19...a6!? 20.Nd5 Rd8 21.Nf6 Kf8 22.Rd5 Rd5 23.Nd5-+) 20.Ra7 Rc2 21.Nb1? (better 21.Rb7 Rd2 22.Kg1-+) 21...Rb2 22.Ra1 Rb3 23.Na3 (23.Nc3 Kg7-+) 23...Rb2 24.Nc4 (24.Rd1 b5-+) 24...Rc2 25.Ne3 (25.Na5 Rd2 26.Kg3 Ra8-+) 25...Rd2 26.Kf1 (26.Kf3 Rd3 27.Re1-+) 26...Re3 27.Ra8 (27.Rb1 Ree2 28.Rb7 Rf2 29.Kg1 Rg2 30.Kh1 c5 31.Rb8 Kg7-+) 27...Kg7 28.Ra1 (28.Rc8 c6 29.Rc7 Rb3-+) 28...Ree2 29.g3 (29.Ra3 Rf2 30.Ke1 Rg2-+) 29...Rf2 30.Ke1 (30.Kg1 Rg2 31.Kh1 Rg3 32.Rb1-+) 30…Rh2 (30...Rh2 31.Ra5 Rb2 32.Rg5 fg5 33.fg5 Rh1; 30...Rde2 31.Kd1 Rb2 32.Ke1 Rh2 33.g5 Rh1) 0-1. girafik (2510) - zsolti_83 (2510), Rated Blitz game, lichess.org, 2020. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.e3 Re8 6.Be2 (6.a3 Be7=) 6...Nc6 (6...d5 7.0-0=+) 7.Nd3 Bf8 (7...Be7 8.0-0=) 8.0-0 d5 9.Nc3 a6 10.Bf3 Na5 11.Nf4 d5 seems the pivot of the position (11.Rb1 Nc4=+) 11...Nc4 12.Qc1 c6 13.Nce2 Bd6 14.Bd4 Ne5 (14...Nd7 15.Bh5–/+) 15.Be5 Be5 16.d4 Bd6 17.Ng3 (17.h3 b5=+) 17...Ng4 (17...b6 18.c4=+) 18.c4 dc4 19.Qc4 Qh4 20.h3? (better 20.Bg4 Bg4 21.Nd3=+) 20...Ne3–+ (20...Ne3 21.fe3 Qg3–+) 0–1. Child,Kieran – Rebaudo,Nino (1700), FICGS, 2007. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.Bb2 0-0)

5.e3 Re8 6.Be2 Bf8 7.0-0 d5 (7...Nc6 8.d4=) 8.c4 c5 (8...Bd6 9.f4+=) 9.d4 (9.cd5 Nd5 10.Na3 f6=) 9...Nc6 (9...cd4 10.Bd4 Bd6 11.f4+=) 10.Nc6 (10.cd5 Nd5 11.Nc3 Be6=) 10...bc6= 11.dc5 (11.Nc3 cd4 12.ed4 Rb8-/+) 11...Bc5=+ 12.cd5 cd5 ½-½. littlewalter - Lance5500 (2620), lichess.org, 2017. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.g3 Nc6 6.Nc6 dc6 7.Bg2 Bg4 8.0-0 Re8 9.f3 Bh5 10.e3 Qd6 11.Qc1 Rad8 12.Rf2 Qe6 13.Nc3 a5 14.a3 Bd6 15.Rb1 b6 16.f4 Ng4 17.Rf1 Bg6 18.h3 Bc5 19.Nd1 Nf6 20.Bf6 gf6 21.d4 Bf8 22.Rb3 a4 23.Rc3 c5 24.d5 Qc8 25.g4 Be4 26.Be4 Re4 27.Nf2 Ree8 28.e4 c6 29.Rd1 b5 30.Rf3 c4 31.Kg2 Bc5 32.Qb2 cd5 33.Qf6 Be7 34.Qa1 Qc6 35.e5 f6 36.f5 fe5–/+ 37.Qe5 Ba3! 38.Qf4 Qd6 39.Qg5= Kh8 40.Qf6?? Qf6–+ (41.Ra3 Qb2–+) 0–1. Malmstroem,Jan – Kern,Guido (2395), corr 3GMM½–09, 1998.

5.g3 d5 6.Bg2 Nbd7 7.0-0 (7.Nd3 Bd6+=) 7...Re8 (7...Ne5 8.Be5 Re8 9.d4+=) 8.Nf3 (8.Nd3!? Bd6 9.Nc3+=) 8...Nb6–/+ 9.a3 Bd6 10.d3 (10.Nc3 Nc4 11.Bc1 Ne4+=) 10...c5 (10...Na4 11.Bc3–/+) 11.Nbd2 (11.a4 Bg4+=) 11...Na4–/+ 12.Qc1 (12.Rb1!?–/+) 12...Re2–+ 13.c4 (13.Rb1 Bg4–+) 13...d4 (13...Bf5 14.cd5 Bd3 15.Re1 Nd5 16.Re2 Be2 17.Ne4–+) 14.Qd1 Qe8 (14...Nb2?! 15.Qe2 Na4 16.Ng5=) 15.Ra2? (better is 15.Rb1–+) 15...Nc3 16.Bc3 dc3 17.Ne4 Ra2 18.Nd6 Qd8 (18...c2 19.Ne8 cd1Q 20.Nf6 (20.Rd1?? Ne8 21.d4 Bg4–+) 20...gf6 21.Rd1 Ra3 22.h3–+) 19.Nb5? (19.Qb3 Re2 20.Nc8–+) 19...c2 20.Qc1 (20.Qd2 Bf5 21.Ne1 g6–+) 20...Qd3 21.Ne5 Qb3 22.Qd2 Bf5 23.Bd5 (23.Nd6 Be6 24.Nb7–+) 23...Qb1 24.Bf7 Kh8 25.Nc3 Qf1! 26.Kf1 Ra1 27.Kg2 c1Q 28.Qd6 (28.Qc1 Rc1 29.Nb5–+) 28...Qh1 0–1. wellhairedbeast – guerrer (2110), gameknot.com, 2014. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.Bb2 0-0)

5.d3 0-0 6.e3 d6 7.Nf3 Be6 8.Nd4 Bd7 9.Qf3 Qc8 10.e4 c5 11.Nf5 Bf5 12.Qf5 Qf5 13.ef5 Re8 14.Nd2 Nd5 15.Ne4 Bf6 16.Kd2 Re4! 17.de4 Bc3 18.Kc2 Ba1 19.ed5 Nd7 20.Bf4 Be5 21.Be5 Ne5 22.Be2 Nd7 23.Bc4 Nb6 24.Kd3 Re8 25.a4 Nc4–+ 26.Kc4 Re4 27.Kb3 b6 28.f6 gf6–+ 29.Ra1 Rd4 30.Kc3 (30.Re1!? Kf8–+) 0–1. kamret (2220) – vincents (2320), GameColony.com, 2003.

5.d4 d5 6.Bg5 c5 (6...h6 7.Bf6 Bf6 8.Nd2=+) 7.e3= Ne4 (7...c4 8.Be2=) 8.Be7 Qe7 9.Bd3 (better 9.Bb5 Nd7 10.c4=) 9...f5?? (better 9...Nd7 10.Nd7 Bd7= (worse 10...Kd7 11.Qg4 f5 12.Qf5 Kc6 13.Qh5+=)) 10.Qh5+– Kf8?? (better 10...g6 11.Ng6! Qf7+–) 11.Ng6! hg6 Exploits the pin 12.Qh8 Theme: Double Attack 12...Kf7 13.Qc8 c4 (13...Qd7 14.Qh8+–) 14.Be4 fe4 15.0-0 (15.0-0 Qd7 16.Qh8+–; 15.f3!? Qd7 16.Qd7 Nd7 17.fe4 de4+–) 1–0. yodamo – Astrochess, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.c3 Be7)

5.d4 d6 6.Nd3 0-0 7.g3 c5 8.Bg2 c4 9.Nf4 d5 10.0-0 Nc6 (10...g5 11.Nh3 h6 12.Qc2=) 11.Nd2 Qa5 (11...g5 12.Nh3 h6 13.f4=) 12.Qc2= Bd6 13.Kh1 (13.e3 Bf4 14.gf4 Re8=+) 13...Bf4=+ 14.gf4 g6 (14...Re8 15.Re1=+) 15.e4 Ne4 16.Ne4 de4 17.Be4 Re8 18.Rg1 (18.Bd2 f5 19.Bg2 Be6=) 18...Bd7 19.f5?? (better 19.Bb2=+) 19...Re4–+ (19...Bf5?! 20.f3 Be4 21.fe4=+) 20.Qe4 Nd4! 21.Qd4 (21.cd4 Bc6 Combination; 21.Qd4 Bc6 Decoy) 21...Bc6 22.Rg2 (22.f3 Bf3 23.Rg2–+) 22...Rd8 23.Qg4 (23.Qd8 Qd8 24.Be3–+) 23...h5 24.Qh5 (24.Bg5 hg4 25.Bd8 Qd8 26.fg6 fg6 27.a3 Qd5 28.f3 Qf3 29.Rag1 Qh3 30.a4 a5 31.Rd1 Qg2) 24…Qd5 (24...Qd5 25.f3 Qd1 26.Rg1 Bf3 27.Qf3 Qf3 28.Rg2 Rd1) 0–1. yodamo – cruiser82, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.c3 Be7)

5.d4 d6 6.Nd3 Bf5 7.f3 d5 8.Qb3 Qc8 9.e3 c6 (9...0-0 10.g4 Be6 11.Ba3+=) 10.Be2 Nbd7 11.Ba3 Ba3 12.Qa3 Qd8 13.0-0 Qe7 14.Qe7 Ke7 15.g4 Bg6 16.Nf4 b5 (16...Nf8!?=) 17.Nd2+= Ne8 18.a4 Nc7 19.e4 a6 20.ed5 cd5 21.Ng6 hg6 22.Rfb1 Nb6 23.ab5 ab5 24.Ra8 Ra8 25.Bb5 Ra2 26.Nf1 Rc2 27.Rb3 Nc4 28.Bc4 dc4 29.Rb7 Kd6 30.Rb6 (30.Ne3!? Rc3 31.Kf2=) 30...Kd7+= 31.Rb4 Nd5 32.Rc4 Rc1 Looking at c3 33.Ra4 Ne3 34.Ra7 Ke6 35.d5 Kd5 36.Kf2 Nf1 37.Rf7 Ke6 38.Rg7 Kf6 39.Rh7 Nd2 40.Rc7 Rc2 41.h4 Nc4 42.Kg3 Rc3 43.Rc6 Kg7 44.Rc7 ½–½. Taylor,RK (1960) – Doherty,Simon, Bolton Easter, 2015. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.g3 0-0 6.Bg2 d5 7.0-0 c5 8.d4 Nc6 9.Nd2 cd4 10.Nc6 bc6 11.cd4 Bf5 12.Nb3 Qd7 13.Bf4 Bh3 14.Rc1 Bg2 15.Kg2 Ba3 16.Rc2 Ne4 17.Qd3 a5 18.f3 Nd6 19.Nc5 (19.e4 Nb5+=) 19...Bc5= 20.dc5 Nb7 21.e4 Rfd8 22.Rb1 Qe7 Attacks the isolani on c5 (better 22...de4!? 23.Qe4 Re8=) 23.Qb3 Nc5 (23...g5!? 24.Bg5 Qg5 25.Qb7 de4 26.fe4 Qe5+–) 24.Qa3+– de4 25.Qc5 (25.Rc5?! Rd3 26.Qc1 ef3 27.Kh1 Qe2=+) 25...ef3 26.Kf3 Rd3 27.Kf2 Qe4 28.Qc6 Qd4 29.Kg2 Rd8 30.Rc4 Rd2? (30...Qd5 31.Qd5 R3d5+– (31...R8d5?? 32.Rb8 Rd8 33.Rcc8+–)) 31.Bd2 Qd2 32.Kh3 g6 33.Rc2 Qh6 34.Kg2 Rd2 35.Rd2 Qd2 36.Kg1 Qa2 37.Qc8 Kg7 38.Qc3 Kh6 39.Qc1 g5 (39...Kg7+–) 40.Rb6 (40.Rb6 Qe6 41.Re6 fe6 42.h4+–) 1–0. Wong,Ho Cheung (2030) – Lau,Wai Man Wilson, Hong Kong National Chess Championship, 2019. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.g3 0-0 6.Bg2 d6 7.Nd3 Nc6 8.Ba3 (8.0-0 Bf5=+) 8...Bf5–/+ 9.Qb3 Rb8 10.0-0 Qd7 11.Nb2 (11.Bb2!?–/+) 11...b5–+ 12.d4 a5 (12...b4 13.cb4 Nd4 14.Qd1–+) 13.d5 (13.Nd3 b4 14.d5 ba3 15.dc6 Rb3 16.cd7 Rb2 17.Na3 Re2=+) 13...Na7 (13...Ne5!?–/+) 14.Nd3=+ Be4 15.Nd2 Bg2 16.Kg2 c5 (16...Qf5 17.Nf4 g5 18.e4 Ne4 19.Ne4 Qe4 20.f3=+) 17.c4 (17.dc6 Nc6 18.Rad1 b4=+) 17...a4 (17...Qf5 18.Rfe1 a4 19.Qc2 bc4 20.Qc4 Qd5 21.e4 Qc4 22.Nc4=+) 18.Qc2 b4 (18...bc4!? 19.Qc4 Nb5=) 19.Bb2+= Qf5 (better 19...Nh5+=) 20.Nb4?? (better 20.Rae1 a3 21.e4+–) 20...Qc2–+ 21.Nc2 Rb2 22.Rfc1 Ng4 (22...Bd8 23.Rab1 Ra2 24.Ra1–+) 23.h3 Nh6 (23...Bg5 24.f4 Re8 25.Nf1 Re2 26.Kf3 Rbc2 27.Rc2 Rc2 28.Rb1–+) 24.Nf3?! (24.Rab1 Rfb8 25.Ne1–+) 24...Bf6 25.Rab1 (25.Nfe1 Nc8–+) 25...Rfb8 (25...Ra2 26.e4–+) 26.Na3 (26.Rb2 Rb2 (26...Bb2?! 27.Rb1 Nc8 28.Nfe1–+) 27.a3 Nc8–+) 26...Rb1 (better 26...R8b4 27.Ra1–+) 27.Rb1 Rb1 28.Nb1 Bb2 29.e4 f6 30.Nbd2 Nf7 31.Nh4 (31.Kf1 Nc8–+) 31...g6 (better 31...Bc1!? 32.Nb1–+) 32.f4 Nc8 33.Kf3 Nb6 34.Ke2 Bc1 35.Nhf3 h5 36.g4? (36.Kd1 Bd2 37.Nd2–+) 36...hg4 37.hg4 Nh6 (37...Bd2 38.Nd2 g5 39.Ke3–+) 38.g5 (38.e5 de5 39.fe5 Bd2 40.Nd2 fe5–+) 38...fg5 39.fg5 (39.Ng5 Bd2 40.Kd2 Nc4 41.Kc3 Nb6–+) 39...Ng4 (39...Nf7 40.e5 de5 41.Ne4 Nc4 42.Nc5–+) 40.Kd1 (40.Kd3 Nf2 41.Kc3 Ba3–+) 40...Bd2 41.Nd2 0–1. yodamo – Vermiculite, ChessWorld.net, 2011. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.c3 Be7)

6.Ba3 Ba3 7.Na3 Nc6 (7...Qe7 8.Qb3–/+) 8.Nd3 (8.e3 Re8 9.Nc6 dc6=) 8...d5 (8...Re8 9.g3 d5 10.Bg2–/+) 9.e3 Re8 (9...Ne4 10.Qc1–/+) 10.Rb1 (10.Be2 Qd6 11.Qb3 Bf5=+) 10...Ne4–/+ 11.Qb3 Na5 12.Qb4 Nc6 (12...b6 13.Be2–/+) 13.Qb3 Bg4 14.Qb7 Qe7 15.Qc6 Nf2 16.Ne5 Nh1 17.Ng4 Qa3 18.Bd3? (18.Be2 Qa2 19.Rb5 Rad8–+) 18...Qa2 19.Ne5?? (better 19.Qc7 h5 20.Ne5–+) 19...Qf2 20.Kd1 Qe3 21.Qc7 (21.Kc2 Nf2 22.Bb5–+) 21...Nf2 22.Kc2 Nd3 23.Qf7 Kh8 24.Rb7 (24.Qf3 Ne1 25.Re1 Qe1 26.Nf7 Kg8–+) 24...Qe2 25.Kb3 (25.Kb1 Qd1 26.Ka2 Qc2 27.Ka1 Qc3 28.Kb1 Qc1 29.Ka2 Qd2 30.Ka1–+) 25...Qb2 26.Ka4 Qa2 27.Kb5 a6 28.Kc6 Qa4 (28...Ne5 29.de5 Rac8 30.Qc7 d4 31.Kd6 Re6 32.Kc5 Re5 33.Kb6 Qa5 34.Ka7 Rc7 35.c4 Qc5 36.Ka8 Re8 37.Rb8 Qc6) 29.Kd5 (29.Kd6 Rad8 30.Rd7 Qa3 31.Kd5 Qb3 32.Ke4 Re5 33.de5 Rd7 34.Qb3 Nc5 35.Kf4 Nb3–+) 29...Nf4! 30.Ke4 (30.Qf4 Qa2 Double attack) 30...Qc2 31.Kf4 Rf8 0–1. yodamo – steviousmattias, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

6.Ba3 d6 7.Nf3–/+.

6.Nd2 c5 7.e3=+.

6.Nd2 d5 7.Qb3 (7.e3 Nc6=+) 7...c5 8.dc5 (8.e3 Nc6=+) 8...Bc5 (8...Re8 9.e3–/+) 9.e3 Qe7 10.Ndf3 Bd6 11.Nd3 Nc6 12.Be2 Na5 13.Qb5 Qc7 14.Bd2? (14.0-0!? Bd7 15.Qb2–/+) 14...a6 (14...Bd7!? 15.Qb1 Ne4 16.Qc2–+) 15.Qa4 Nc4 16.0-0 Bg4 17.Nf4 (17.Qd1–+) 17...Bf3 (17...Nd2 18.Nd2 Bf4 19.Bg4 Bh2 20.Kh1–+) 18.Bc4 b5 (better 18...Bg2 19.Kg2 dc4–+ (19...Qc4?! 20.Qc4 dc4 21.Rfb1–+)) 19.Bb5?? (better 19.Qc2 Bg2 20.Kg2 Qc4 21.Qb3–+) 19...ab5 20.Qb5 (20.Qb3 Ra3 21.Qb2 Bg4 22.Qb5 Rd8–+) 20...Rfb8 21.Qd3 Be4 22.Qe2 Rb2 (22...g5!? 23.Nh3 Bh2 24.Kh1–+) 23.Nd3 (23.f3–+) 23…Qc4 (23...Qc4 24.Nf4 Qe2 25.Ne2 Bd3–+) 0–1. yodamo – dewil, ChessWorld.net, 2012. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.c3 Be7)

6.e3 d5 7.Bd3 Bd6 8.Qc2 Be5 (8...Re8 9.Nf3+=) 9.de5= Ng4 10.f4 Qh4 11.g3 Qh3 12.Bf1 Qh5 13.Bg2 Nh2?? (better is 13...c6=) 14.Bd5+– Nf3 (14...c6 15.Rh2 (15.Qh2?! Qh2 16.Bf7 Rf7 17.Rh2 Bg4+/–) 15...Bf5 16.Rh5 Bc2 17.Bb3 Bb3 18.ab3+–) 15.Bf3 Qf3 (15...Qg6 16.Qg6 hg6+–) 16.Qh7# 1–0. Wall,B (2200) – Luscomb,D (1855), NAO, Stillwater USA, 2010. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

6.g3!?=+.

6.Bg5 d6–/+ 7.Nd3 c6 (7...h6 8.Bf4–/+) 8.e3 (8.Nd2 Nbd7–/+) 8...Qa5 (8...Nbd7 9.Be2–/+) 9.Bf6=+ Bf6 (9...gf6?! 10.Nf4 Na6 11.Bd3+=) 10.Be2 Re8 11.0-0 Nd7 12.Nd2 Qc3 13.Rc1 Qa5 14.Nb3 Qg5 (14...Qa3 15.Qd2–/+) 15.Bf3 Nb6 16.e4 (better 16.Nf4!?–/+) 16...Be6–+ 17.Re1 Bb3 18.Qb3 Bd4 19.g3 Qf6 20.Bg2 (20.Kg2 g6–+) 20...Rac8 21.a4 (21.Bh3 Rcd8–+) 21...c5 22.Nf4 c4 23.Qb4 (23.Qc2 Rc5–+) 23...g5 24.Nh5 (24.Nh3 c3 25.Bf1 c2–+) 24...Qf2 (24...Bf2?! 25.Kf1 Qg6 26.Kf2 Qh5 27.a5–+) 25.Kh1 Qb2 26.Qd6 (26.Qb2 Bb2 27.a5–+) 26...Re6 27.Nf6 (27.e5 Rd6 28.ed6 c3 29.Bb7 Rd8–+) 27...Kg7 28.Ne8 (28.Qe6 fe6 29.e5 Be5 30.Ne4–+) 28...Rce8 29.Qc7 R6e7 30.Qd6 0–1. yodamo – tunybgur, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.Bb2 Nc6 6.Nd3 (6.Nc6 dc6 7.a3 Bd6 8.d4 Ng4 9.e4; 6.a3 Ne5 7.Be5 Be7 8.e3 d6 9.Bc3) 6...Ba5 7.Nc3 d6 8.e3 Re8 9.Be2.

5.Bb2 d5 6.e3 Re8 7.Be2 Bd6 8.Nf3 c5 9.d3 Nc6 10.cd5 Nd5 11.Nbd2 Ne5 12.Nc4 Nc4 13.dc4 Nb4 14.a3 Nc6 15.Qc2 Qe7 16.h4 h6 17.0-0-0 Nd4 (17...Be6 18.Ng5 hg5 19.hg5 Qg5 20.Rd6=) 18.ed4= Qe2 19.Rhe1 Qc2 20.Kc2 Bg4 21.d5 f6 22.Re8 Re8 23.Re1 Re1 24.Ne1 Kf7 25.a4 Be2 26.Nd3 Kg6 27.Bc1 Kf5 28.f3 h5 29.Be3 b6 30.Kc3 Bd3 31.Kd3 Bg3 32.Bg1 Ke5 (worse is 32...Bh4 33.Bh2+=) 33.a5 f5 (33...Bh4? 34.Bh2 Kf5 35.a6+–) 34.Be3 Bh4 35.Bd2 g6 36.a6 f4 37.Bc3 Kf5 38.Bg7 Be7 39.Kc3 (39.Ke2 g5–/+) 39...g5 (39...Bf6!? 40.Bf6 Kf6–+) 40.Kd2 g4 41.Ke1 Bd8 42.d6 b5 1–0. Dominguez,JM (2365) – Mosquera,M (2390), Pan–American Teams, Mendes BRA, 2009. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.Qb3 Ba5 6.Qa3 c6 7.Bb2 d6 8.Nf3 Na6 9.e3.

5.Qb3 Na6 6.Bb2 (6.Nd3 Be7 7.Bb2 d5 8.cd5 Nd5 9.e4; 6.a3 Ba5 7.Bb2 Nc5 8.Qc2 d6 9.Nf3; 6.e3 Ne4 7.Nd3 Ba5 8.Be2 d6 9.0-0) 6...Re8 7.e3 d6 8.Nd3 Ba5 9.Qb5.

5.Qb3 Bc5 6.e3 Re8 7.Nf3 Nc6 8.Be2 d5 9.d4.

5.Qb3 d6 6.Nd3 Ba5 7.Nc3 (7.Bb2 Re8 8.e3 Ne4 9.Be2) 7...Nc6 8.e3 Re8 9.Be2 Ne5 (9...Qe7 10.0-0+=) 10.Bb2= c6 11.Nf4 Ned7 12.d4 Ne4 13.Rd1 Qb6 14.Rd3 Ndf6 15.0-0 Bf5 (15...Qb3!? 16.ab3 Bf5 17.Ne4 Be4=) 16.Ne4 Be4 17.Rdd1 (17.Qb6 Bb6 18.Rb3 Rab8=) 17...Qb3 18.ab3 Bc2 (18...d5 19.Nd3=) 19.Ra1 Bb4 20.Bd1 Bf5 21.h4 (21.d5 Ne4 22.Bc2 g6+=) 21...h6 22.h5 Ne4 23.Bc2 Bh7 24.Rfd1 a5 25.Rac1 (25.f3 Bd2 26.Bc1 Bc3+=) 25...Nd2= 26.Bc3 Ne4 (26...Bc2 27.Rc2 Bc3 28.Rc3=) 27.Be1 (27.Be4 Be4 28.f3+=) 27...b5 (27...Be1 28.Re1 Nd2 29.Bd1=) 28.f3 (28.Bb4!? ab4 29.cb5 cb5 30.Nd5+=) 28...Be1+= 29.Re1 (29.Be4 Be4 30.Re1 Bf5+=) 29...Nd2= 30.e4 (30.cb5!? cb5 31.e4=) 30...bc4+= 31.bc4 a4 32.Bb1 Reb8–/+ 33.Ba2 Rb2 34.Ra1 Rab8 35.c5 dc5+= 36.Nd3 Rc2 37.dc5 Rd8 38.Ne5+= Rb8?? 39.Bf7+– Kh8 40.Ra4 Nb1 41.Nc6 Rbb2 ½–½. Rodriguez – Hobaica, Chaco, 1993. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.Qb3 Be7 6.d4 (6.e3 d6 7.Nf3 c5 8.Be2 Nc6 9.0-0; 6.Nc3 Nc6 7.Nc6 dc6 8.e3 Rb8 9.Be2) 6...Nc6 7.Nc6 dc6 8.e3 a5 9.Bd3.

5.Nd3 Be7 6.Nc3 (6.Bb2 d5 7.cd5 Nd5 8.Nc3 Nc3 9.Bc3) 6...d5 7.cd5 Nd5 8.Nd5 Qd5 9.Qb3.

5.e3 Nc6 6.Nd3–/+.

5.e3 Re8 6.Bb2 (6.Nd3 Nc6=+) 6...d6 (6...Nc6!? 7.Nd3 a5=+) 7.Nd3=+ Ba5 (7...Nc6 8.Be2=) 8.Be2= Nc6 (8...Ne4 9.0-0=) 9.0-0 d5 (9...Bf5 10.Nc3=) 10.Na3 (10.cd5 Nd5 11.Na3 Bf5=) 10...Bf5 (10...Ne4!? 11.cd5 Qd5=) 11.Bf6= gf6 12.Nf4 d4 13.Bg4 (13.Bd3 Bd3 14.Nd3 de3 15.de3 Ne5 16.Ne5 Qd1 17.Rad1 fe5=) 13...Bg6 14.Ng6 hg6 15.Bf3 Rb8 16.Rb1 Qe7 17.Nc2 (17.Rb3 f5=) 17...d3 18.Ne1 (18.Nd4 Nd4 19.ed4 Qd6=+) 18...Ne5=+ 19.Rb7 Rb7 20.Bb7 Rb8 (20...Qb4 21.Qb3=+) 21.Qa4 Bd2 (21...Qc5 22.Be4 Bd2 23.Nd3 Nd3 24.Bd3 Be3 25.Bg6 (worse 25.fe3 Qe3 26.Kh1 Qd3–+) 25...fg6 26.fe3 Qe3 27.Kh1=+) 22.Qa7 Rd8 23.Nf3 Nc4 (23...Bc3 24.Bd5=+) 24.Ba6 Ne3 25.Rb1 (25.Nd2? Nf1 26.Nf1 d2 27.Nd2 Rd2–+) 25...Qe4? (better 25...Ng2!? 26.Nd2 Nf4=) 26.Qc7+– Ba5?? (better 26...Qd5 27.Rb5 Qd6 28.Qd6 Rd6 29.Nd2 Ra6 30.fe3 Ra2+–) 27.Qa5+– Rd5 28.Qb4 Qb4 29.Rb4 d2 (29...Nc2 30.Rb8 Kg7 31.Nd2+–) 30.Nd2 Nc2 (30...Rd2 31.fe3 Ra2 32.Bc4+–) 31.Rb8 Kg7 32.Nf1 Ra5 (32...f5 33.a4+–) 33.Bc4 Na3 (33...Rc5 34.Nd2 Na3 35.Rb4+–) 34.Bb3 Nb5 (34...Ra7 35.g3+–) 35.Rb7 Nd6 (35...f5 36.Ne3 (36.Bf7?! Nd6 37.Rb2 Kf7+–) 36...Nd6 37.Rd7+–) 36.Rd7 Ra6 37.h4 1–0. Sitnikov,Anton (2480) – Iljin,Timofey (2435), 2010. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.c4 0-0)

5.g3 d6 6.Nf3 d5 7.cd5 (7.a3 Ba5 8.cd5 Nd5 9.Bb2 Nc6 10.Bg2 Re8 11.0-0; 7.Qb3 Nc6 8.cd5 Nd5 9.a3 Ba5 10.Bb2 Be6 11.Qb5) 7...Qd5 (7...Nd5 8.Bb2 Re8+= (8...Nc6 9.Nc3 Re8 10.Bg2 Bf5 11.Nd5) 9.Bg2 Nc6 10.0-0 h6 11.Na3) 8.Bg2 (8.Nc3 Qc5 9.Bg2 Bf5 10.0-0 Nc6 11.Bb2) 8...c5 (8...Nc6!?+= 9.Nc3 Qc4 10.0-0 Re8 11.Re1; 8...Rd8 9.Bb2 Nc6 10.0-0 Qh5 11.Nc3) 9.Bb2 (9.a3 Ba5 10.Nc3 Qh5 11.0-0) 9...Nc6 (9...Qf5 10.0-0 Nc6 11.Nh4) 10.0-0 (10.Bf6 gf6 11.Nc3) 10...Qd6 (10...Bf5 11.Nc3) 11.Nc3 (11.Na3=) 11...Bf5 12.d3 Qd7 (12...Rad8 13.Qa4 Qe7 14.Rab1=) 13.Na4 Nd4? (better is 13...b6=) 14.a3+– b5? (better is 14...Ne2 15.Qe2 Bd3+–) 15.Nd4 cd4 16.ab4 (16.Ba8?! Be7 17.Bf3 Bh3+–) 16...ba4 17.Ba8 Ra8 (17...a3 18.Ra3 Ra8 19.Qa1+–) 18.Qa4 Qe6 (18...Qd6 19.Rfc1 Bd7 20.b5+–) 19.Rfe1 Bg4 (19...Qd5 20.Qa5+–) 20.Bd4 Nh5 (20...Qd5 21.Bf6 gf6 22.Qa5+–) 21.Qb5 Be2 22.f3 Nf4 23.gf4 (23.gf4 Rd8 24.Kf2+–) 1–0. Grcic,M – De Noskowski,Adrian, Australian Open, Tuggeranong AUS, 2007. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4)

5.c4 d5 6.cd5 Nd5 7.e4 (7.Nc3 Nb6=+) 7...Bf6 8.e5 (8.Bb2 0-0 9.Nc3 Re8 10.Nd5 Bb2 11.Nb2 Qd5=+) 8...Be7 9.Bb2 Nc6 10.Qf3 (10.Be2 0-0=+) 10...0-0–/+ 11.Nc3 Nb6 (11...Be6 12.Nd5 Bd5 13.Qg4–/+) 12.Nd1 (12.Ne4 Nc4 13.Rb1 Nb2 14.Rb2 Nd4–/+) 12...Nc4 13.Qe4 Nb2 14.N1b2 (14.N3b2 Re8 15.Bb5 Bd7–/+) 14...Nd4 (14...Bf5 15.Qf5 Nd4 16.Qe4 Nc2 17.Kd1 Na1 18.Kc1=+) 15.Rc1 Ba3 16.Rc4 c5! 17.Nd1 (17.Nc5 Bb2 Deflection) 17...Qb6 (17...Be6 18.Rc3 Qb6 19.Be2–+) 18.Nf4 Bf5 19.Qe3 Qa5 20.Bd3 Bd3 21.Qd3 b5 22.Rd4 cd4 23.0-0 Rac8 24.e6 Qa4 (24...Bd6 25.Qd4 Bf4 26.Qf4 fe6 27.Qe3 Qa2 28.Nc3–+) 25.ef7 Rf7 26.Ne6 Be7 27.Qd4 Qa2 28.Qd7 Qa6 29.Qd5 Qd6 30.Qa2 b4 (30...Bf6 31.Re1–+) 31.Re1 (31.d4 a5!–+) 31...Qd3 32.Qa7 Bc5 33.Qa6 (33.Qa2 b3 34.Qb2–+) 33...Qa6 (33...Qa6 34.Nc5 Rc5–+) 0–1. Jozefini,Lubor (1875) – Gorbatov,Valentin (1910), FICGS, 2013. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Bb4 4.Nd3 Be7)

5.e3 d5 6.Be2 0-0 7.0-0 c5 8.Ba3 Qc7 9.Nc3 Rd8 10.Nb5 Qb6 11.Rb1 Ne4 12.f3 Nf6 13.Qe1 Na6 14.Qc1 Qa5 15.Ne5 Nb4 16.Bb4 cb4 17.Qb2 a6 18.Nd4 Qc7 19.Nd3 a5 20.Nb5 Qb6 21.Ne5 Nd7 22.Ng4 Nf8 23.Qd4 Qd4 24.Nd4 Ng6 25.Bd3 Nh4 26.Nf2 Bc5 27.Nb5 Rb8 28.Rbc1 Bd7 29.Nd4 b5 30.Rfe1 a4 31.Rb1 Rb7 32.Rf1 Rb6 33.Ng4 Re8 34.Nf2 Rb7 35.Nh3 Re7 36.Nf4 Re5 37.g3 Rg5 38.Kh1 Ng6 39.Bg6 hg6 40.Nd3 Bd4 41.ed4 Rc7 42.Nc5 b3 43.cb3 Bf5 44.Rbe1 ab3 45.Re8 Kh7 46.ab3 Bh3 47.Ra1 Rc8 48.Rc8 Bc8 49.Ra5 Bh3 50.g4 Bg4 51.fg4 Rg4 52.Rb5 Rd4 53.d3 f5 54.Rb7 f4 55.h4 f3 56.Rg7! Kh6 57.Rf7 Rh4 58.Kg1 g5 59.Rf3 Kg6 60.Kf2 Rb4 61.Ke3 Rh4 62.Rf8 d4 63.Kf2 Rh2 64.Kf3 Rh4 65.b4 Kh7 66.Kg3 Rh1 67.Rd8 Rg1 68.Kf2 Rb1 69.Rd4 Kg6 70.Re4 Kf5 71.Nb7 Rb2 72.Kf3 Rb1 73.Nd6 Kf6 74.b5 Rb3 75.Ke2 Rb2 76.Kd1 Kg7 77.d4 Kf6 78.d5 Kg7 79.Kc1 Rb3 80.Kc2 Rh3 81.b6 Rh2 82.Kc3 Rh3 83.Kc4 Rh1 84.b7 Rc1 85.Kb5 Rb1 86.Rb4 Rh1 87.b8Q Rf1 88.Qc8 Rf6 89.Nf5 Kh7 90.Qd7 Kg6 91.Qe8 Kh7 92.Qh5 Kg8 93.Qg5 Rg6 94.Qg6 Kf8 95.Qg7 Ke8 96.Qe7# 1–0. GLChess210 – ExChess401, computer chess game, 2000.

5.e3 d5 6.Be2 Bf5 7.Nc3 (7.0-0 0-0=+) 7...c6 (7...0-0 8.0-0=+) 8.Bb2 0-0 9.0-0 Re8 10.g4 (10.Rb1 Bd6=) 10...Bd3 11.Bd3 Bb4 (11...Qd6 12.g5 Nfd7 13.Qh5=) 12.f3 (12.Qf3 Qe7=) 12...h6 (12...Qe7 13.g5 Nfd7 14.f4=+) 13.Ne2 (13.Rb1 Qe7=) 13...Nbd7=+ 14.Rb1 Qa5 15.Bf6 Nf6 (15...gf6 16.c3 Bd6 17.Rb7–/+) 16.c3 Bd6 17.Rb7 Qa2 18.Qc2 ½–½. Rohde,Friedhelm – Jacewicz,Grzegorz, corr 3GMM–28, 1995.

4.Nc6 dc6 5.a3 a5 6.ba5 Ra5 7.Bb2 (7.Nc3 Bd6 8.Bb2 Be6 9.e4 Be5=; 7.e3 Bd6 8.Bb2 0-0 9.Be2 Be6=; 7.d3 Bd6 8.e4 Be6 9.Be2 0-0=) 7...Be7 (7...Bd6 8.e3 0-0 9.Be2 Be6=) 8.e3 0-0 9.Be2 Re8 (9...Be6+=) 10.0-0 h5 11.Bc3 Rg5 12.f4 Rd5 13.Qc1 h4 14.Bf3 h3 (14...Rf5 15.a4+/–) 15.Rf2 (15.Bd5 Qd5 16.Rf3 hg2+–) 15...Bf5 (15...Rb5!?+/–) 16.Bd5+– cd5 17.g3 Ng4 18.Re2 c5 19.Bb2 d4 20.e4 c4 21.d3 (21.ef5 d3 22.Re3 Bc5–+) 21...c3 22.Nc3 (22.ef5 cb2 23.Qb2 Ba3 24.Na3 Re2 25.Qb7 Qe8 26.Qf3 Nh2 27.Rb1 Nf3 28.Kf1 Re1 29.Re1 Qe1) 22...dc3 23.Bc3 Bc5 24.Kf1 Bd7 25.Qb2 Ba4 (25...Ne3 26.Re3 Be3 27.Bg7+/–) 26.Rb1 (26.d4 Bd6+/–) 26...b5 27.Rbe1 (worse is 27.Bg7 f6 28.Bf6 Nf6+=) 27...Bb6 28.d4 (worse is 28.Bg7 f6+=) 28...Qc7 29.Qb4 (29.Kg1!?=) 29...Rc8+= 30.Bb2? (30.Bd2 Qc2 31.Qd6–+) 30...Ba5–+ 31.Qc5 Qc5 32.dc5 Be1 33.Ke1 Rc5 34.Kd1 0–1. viking1 (1985) – eggis49 (2045), gameknot.com, 2007. (=1.Nf3 Nf6 2.b4 e5)

4.Nc6 dc6 5.a3 a5 6.ba5 Bd6 7.d4 (7.e3 Ra5 8.Bb2 0-0 9.Be2 Be6=; 7.Bb2 0-0 8.e3 Ra5 9.Be2 Be6=; 7.Nc3 0-0 8.e3 Ra5 9.Bb2 Be6=) 7...Ra5 8.Nd2 0-0 9.c4 Ng4 +=.

4.Nc6 dc6 5.a3 a5 6.ba5 Be7 7.e3 (7.Nc3 0-0 8.e4 Ra5 9.Bb2 Re8+=; 7.Bb2 Ra5 8.e3 0-0 9.Be2 Be6+=; 7.d4 Ra5 8.e3 0-0 9.Be2 c5+=) 7...Ra5 8.Be2 0-0 9.0-0 Re8 +=.

4.Nc6 dc6 5.a3 Bd6 6.Nc3 a5 7.b5 Be5 8.bc6 Ne4 (8...Ng4 9.Bb2 Qf6 10.Ne4 Qc6 11.Be5 Ne5 12.Nc3+=) 9.Bb2 (worse 9.Ne4 Ba1 10.c3 bc6=) 9...Nc3 10.Bc3 (10.dc3?! Qf6 11.Qd3 Qc6=) 10...Bc3 11.dc3 Qd1 12.Rd1 bc6 13.g3 Rb8 14.Bg2 Rb2 15.Bc6 Ke7 16.Be4 Ra2 17.Kd2 Rd8 18.Bd3 Ra3 19.Ra1 Ra1 20.Ra1 Rd5 21.e4 Rc5 22.Ke3 f5 23.f4 fe4 24.Ke4 Kd6 25.Kd4 h5 26.c4 g5 27.Rb1 Bf5 (27...Bd7 28.Rb8 gf4 29.gf4+–) 28.Rb5 Rb5 29.cb5 Bd3 30.Kd3 gf4 31.gf4 a4 (31...Kc5 32.f5 a4+–) 32.Kc4 a3 33.Kb3 a2 34.Ka2 Kd5 35.Kb3 Ke4 (35...Kc5 36.Ka4 h4 37.Ka5+–) 36.c4 Kf4 37.c5 Ke5 38.Kc4 h4 39.b6 cb6 40.cb6 Kd6 41.Kb5 h3 42.Ka6 (42.Ka6 Kd7 43.b7+–) 1–0. pierred (2770) – aimascar (2855), net–chess.com, 2014. (=1.Nf3 Nf6 2.b4 e5 3.Ne5 Nc6)

3.Ba3 a5 4.ba5 Ba3 5.Na3 e5 6.Nc4 e4 7.Nd4 d5 8.Ne3 0-0 9.Nb3 d4 10.Nc4 Nc6 11.e3 d3 12.a3 Bg4 13.Qb1 dc2 14.Qc2 Qd5 15.d4 ed3 16.Qd3 Qg5 17.Qc2 Bf5 18.Qb2 Be6 19.Nbd2 Bc4 20.Nc4 Na5 21.Qe5 Qh4 22.Na5 Rfe8 23.Qg3 Qd4 24.Rc1 Ra5 25.Bc4 (25.Rc7?? Rd5 26.Bd3 Qd3–+) 25...Qd7 26.0-0 Ra3 27.Be2 c6 28.Rfd1 Qe7 0–1. Zedtler,Uwe (1865) – Ortwein,Kurt, DESC, 2000. (=1.Nf3 Nf6 2.b4 e6)

3.Ba3 b5 4.e3= a6 5.Be2 (5.c3 Bb7=) 5...d5 6.0-0 Bd6 7.d4 0-0 8.Bd3 (8.c3 Nbd7=) 8...Nbd7 9.Nc3 Bb7 10.Ng5 h6 11.Nh3 e5 12.Rb1 c6 13.Bf5 (13.de5 Ne5 14.Be2 Qe7–/+) 13...Qc7 (13...Qe7 14.Qc1–/+) 14.f4=+ e4 15.Nf2 Nb6 16.Ng4 Ng4 17.Bg4 Qe7 18.Be2 (18.Qe1 Nc4 19.Bc1 a5–/+ (< 19...Bb4 20.Nd5 cd5 21.Qb4 Qb4 22.Rb4=+)) 18...Nd7 (18...a5 19.ba5 Ba3 20.ab6–+) 19.Qc1 a5 20.Qb2 Nb8 21.f5? Na6–+ 22.f6 gf6 23.Rf4? ab4 24.Bb4 Nb4 25.Rg4 Kh7 26.Rf1 f5 27.Rf5 Bc8 28.Rff4 Bg4 29.Rg4 f5 (29...f5 30.Rf4 Bf4 31.ef4 Na6–+) 0–1. Sensory 9 – Human, Paris, 1983.

3.b5 Bb4 4.e3 (4.Bb2 d5=) 4...0-0 (4...d5 5.Be2=) 5.Bb2 (5.a3 Be7=+) 5...a6 6.Be2 ab5 7.Bb5 d5 8.0-0 Bd7 9.Qe2 c6 (9...Bd6 10.Bd7 Nbd7 11.Nc3=+) 10.Bd3= c5 11.c3 (11.a3 Ba5 12.c4 Bc6=) 11...Ba5=+ 12.c4 Nc6 13.Na3 (13.Nc3 Nb4=) 13...Nb4 (13...Qe7 14.Bb1=+) 14.cd5 (14.Bb1 Qe7=) 14...ed5=+ 15.Bb1 (15.Bb5 Bb5 16.Qb5 Bb6=+) 15...Re8 (15...Bg4 16.h3 Bh5 17.Nb5=+) 16.Ne5 Bc7 (16...Be6 17.Rc1 Qb6 18.Qb5=) 17.Nd7= Qd7 18.Nb5 (18.Bf6 Ra3 19.Bb2 Ra5=) 18...Bd8 19.a3 Na6 (19...Nc6 20.a4=) 20.Bc2 Ne4 21.d4 Bf6 (21...c4 22.Nc3 f5 23.Ne4 fe4 24.f3 ef3 25.Qf3=) 22.Rac1 (22.Be4 Re4 23.dc5 Bb2 24.Qb2 Nc5=) 22...c4 23.Nc3 Nc3 24.Bc3 Be7 25.Ra1 (25.a4 Nb4 26.Bb4 Bb4=) 25...Nc7 26.Qd1 (26.a4!?=) 26...Ba3–/+ 27.Qb1 (27.Qh5 g6 28.Qe2 b5–+) 27...Kh8 (27...h6 28.Re1–/+) 28.Bh7 (28.Qb7!? Reb8 29.Ba4 Rb7 30.Bd7=+) 28...g6–+ 29.Bg6 fg6 30.Qg6 Nb5 (30...b5 31.Qf6 Kg8 32.Rab1–+) 31.Be1 (31.Qh6 Qh7 32.Qf6 Qg7 33.Qh4 Kg8–/+) 31...Bd6 (31...Ra6 32.Qh5 Kg7 33.Rb1–+) 32.Qh6 (32.Rb1 Bf8–/+) 32...Qh7 33.Qh7 Kh7 34.Rb1 Nc7 35.Rb7 Ra2 36.Bc3 (36.g4 Kg7–/+) 36...Kg6 (36...Rea8 37.g4–/+) 37.Rfb1 Ra3 38.Rc1 (38.Bb4 Bb4 39.R1b4–/+) 38...Ra2 39.h3 (39.Rcb1!?=) 39...Kf5 (39...Rf8 40.Rb2 Rb2 41.Bb2–/+) 40.Rb6 (40.g4 Ke4 41.Rcb1 Kd3–/+) 40...Re6 (40...Ba3 41.g4 Ke4 42.Ra1 Ra1 43.Ba1–/+) 41.Rbb1 (41.g4 Ke4 42.Kg2 Ba3=+) 41...Ke4–/+ 42.Rb7 (42.Ra1 Ra1 43.Ba1 Kd3–/+) 42...Kd3 (42...Rf6 43.Rb2 Ra6 44.Rbc2–/+) 43.Be1 Ra3 Black prepares the advance c3 44.Rb2 (44.g4 Rb3 45.Rb3 cb3 46.Rc3 Ke2 47.Rb3 Ke1–/+) 44...c3 45.Rd1 Kc4 46.Rb8 (better 46.Rc1!?–/+) 46...c2 47.Rc1 Ra2 48.Bd2 (48.Ba5 Nb5 49.Rb6 Ra5 50.Rc6 Kd3 51.R6c2 Ba3–+) 48...Nb5 49.Rb7 Nc3 (49...Kd3 50.Rb5 Kd2 51.Rf1–+) 50.Kf1 Ba3 51.Re1 Kd3 52.Bc3 Kc3 53.Rc7 Kd3 54.g4 (54.Rb7 c1Q 55.Rc1 Bc1 56.Rb3 Kc2–+) 54...Rb6 (better 54...Rf6 55.f4 Rh6 56.Re2–+) 55.Kg2 Bd6 56.Rc8 Ba3 57.Rc7 Kd2 (57...Bb4 58.Rc1–+) 58.Rf1 Bd6 59.Rc8 Be7 (better 59...Rb1 60.Rc2 Kc2 61.Rb1 Kb1 62.h4–+) 60.f4 (60.Kg3–+) 60...Ke3 61.Kg3 (61.Rc1 Kd3 62.g5 Rb1 63.R1c2 Rc2 64.Rc2 Kc2–+) 61...Kd4 62.f5 (62.g5 Rb1 63.Rc2 Rb3 64.Kg4 Rc2 65.h4 Rg2 66.Kh5–+) 62...Rb3 63.Kf4 Rb1 64.Rf3 Bc5 65.Rc5 0–1. Green Light Chess v2.15c – Nejmet260, computer chess game (LAPTOP), 2001.

3.b5 b6 4.e3 (4.c4 Bb7=) 4...a6 5.c4 Be7 6.Bb2 d5 7.a4 0-0 (7...ab5 8.ab5 Ra1 9.Ba1=) 8.Bd3 (8.Nc3!?=) 8...Nbd7=+ 9.g4? (better 9.Bc2=+) 9...Nc5–+ 10.Qc2? (10.Be2 dc4 11.Bc4 ab5 (11...Ng4?! 12.Rg1 Nf6 13.Ne5–/+) 12.Bb5 Bb7–+) 10...Nd3 (10...dc4!? 11.Bc4 Bb7 12.Qd1 ab5 13.Bb5–+) 11.Qd3 Bb7 (better 11...dc4 12.Qd8 Rd8–+ (12...Bd8?! 13.Na3–/+)) 12.cd5? (better 12.g5 Ne4 13.cd5 Bd5 14.Rf1–+) 12...Bd5 13.Ng5 (13.Qe2 ab5 14.Bf6 Bf6 15.d4–+) 13...Bh1 14.Bf6 (14.Qd8 Rfd8 15.Ba3 Ba3 16.Na3–+) 14…Qd3 (14...Qd3 15.Be7 Bg2–+) 0–1. yodamo – demonchild, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 b6)

3.b5 g6 4.c4 Bg7 (4...a6 5.Bb2=) 5.Nc3 (5.d4 c5=) 5...0-0 (5...Ne4 6.Bb2=) 6.d4 c6 (6...d5 7.Ba3 Re8 8.e3=) 7.Ba3 (7.e4 d5 8.e5 Ne4=) 7...Re8 (7...d6 8.e3=) 8.Bd6+= Qa5 9.Qd2 Ne4?? (better is 9...a6+=) 10.Ne4+– Qd2 11.Kd2 (11.Ned2 b6+–) 11...cb5 12.cb5 a6 13.e3 ab5 14.Nc3 Nc6 15.Nb5 Ra5 16.Bc7 Ra8 17.Nd6 Rf8 18.a4 Na5 19.Kc3 1–0. machine – somebody, internet, 2010.

3.c3 a6 4.g3 Be7 (4...d5 5.Bg2=+) 5.Bg2 (5.d3 d5=+) 5...0-0 (5...d5 6.0-0=+) 6.0-0 c5 (6...d5 7.Qc2=+) 7.Ne5 (better is 7.bc5!? Bc5 8.d4=) 7...Qc7=+ 8.d4 d6 9.Nc4 (9.Nf3 cb4 10.cb4 Bd7=+) 9...cd4 (9...cb4!? 10.Qd3 Nc6–/+) 10.Qd4=+ Nbd7 11.e4 (11.Nba3 d5 12.Bf4 Qc6=+) 11...Rb8 (11...Ne4 12.Qe4 d5 13.Bf4 Qc4 14.Qc4 dc4 15.Na3=+) 12.Nbd2 (12.Rd1 Rd8=+) 12...b6 13.a4 (13.Bb2 Bb7=+) 13...Bb7 14.a5 (14.Ne3 Rbc8=+) 14...b5–/+ 15.Nb6 Ne5 (15...Ng4 16.h3 Bf6 17.Qd3–/+) 16.h3 (16.f4 Nc6 17.Qd3 Rbd8=) 16...Nc6 (16...d5 17.f4 Nc6 18.Qe3 de4 19.Ne4 Ne4 20.Be4 Na5 21.Ra5 Be4 22.Qe4 Rb6 23.Be3–/+) 17.Qe3 Nd7 (17...d5 18.ed5 ed5 19.Nb3=+) 18.Nd7 (18.f4 Rbe8=) 18...Qd7=+ 19.Nb3 (19.Bb2 Rfd8=+) 19...Bf6 (19...Ne5 20.Nd2–/+) 20.Bb2 (20.f4 Ne7=+) 20...Ne5 21.Rab1 Nc4 22.Qc1 d5 23.Rd1 Rfd8 24.Nc5=+ Qe7 25.Re1? Nb2 26.Qb2=+ de4 27.Nb7 Qb7 28.Be4 Qc7 29.Qc2 g6 30.Bf3 Rbc8 31.Rbd1 Bc3–+ 32.Rd8 Rd8 33.Rc1=+ Rc8 34.Qe4 Qd7 35.Qb7=+ Qd8 36.Rd1 Qf8 37.Rd7 Bb4=+ 38.Qa6 Rc1 39.Kg2 Qc5?? 40.Qa8+– Kg7 41.Qb7 Qf5 42.Be4?? Qf6=+ 43.Rc7 Ra1 44.a6 Ra2 45.Rc2=+ Rc2 46.Bc2 Bc5 47.Qf3 Qb2 48.Qb3 Qd4–/+ 49.Qe3 Qe3 50.fe3 Be3 51.Kf3 Ba7 52.Ke2 f5 53.Kf3 Kf6 54.Bd3 b4 55.Bc2 e5 56.Ke2 e4 57.Ke1 Ke5 58.Ke2 g5 59.Kd2 f4 60.g4 f3 61.Ke1 h6 62.Bd1 Kf4 63.Kf1 e3 64.Bc2 e2 65.Ke1 Ke3 66.Bd1 f2 0–1. Mokolato – kostovist, internet, 2006.

3.c3 Be7 4.e3 0-0 5.Ba3 b6 6.Be2 Bb7 7.0-0 d6 8.d4 d5 9.Ne5 Nbd7 10.b5 Ba3 11.Na3 Ne5 12.de5 Ne4 13.Qc1 c5 (better is 13...a6!?=+) 14.f3+= Ng5 15.h4 Nh3 16.gh3 Qh4 17.Kh2 f6 (17...Qh5!?+/–) 18.ef6+– Rf6 19.Rg1 Raf8 20.Rg4 Qf2 21.Rg2 Qh4 22.Qc2 d4 23.Rag1 g6 (23...Bf3!? 24.Rg7 Kh8+–) 24.ed4+– Qf4 25.Rg3 cd4 26.Rd1 Qe3 (26...dc3 27.Qc3 Bd5 28.Nc4+–) 27.Rd3 Qe5 (27...Qf2 28.Rg2 Qh4 29.Rd4+–) 28.cd4 Qd6 29.Nc4 Qc7 30.Qb3 Bf3 (30...Bd5 31.Rc3 Qf4+–) 31.Rdf3 Rf3 32.Bf3 (32...Rf3 33.Qf3 Qc4 34.Qa8 Kg7 35.Qa7 Kh6 36.Qb6 Qa2 37.Rg2+–) 1–0. market (1905) – herbyq (1730), GameColony.com, 2002.

3.Ne5 d5 4.b5 Nbd7 5.Bb2 Bd6 6.Nd7 Bd7 7.e3 c5 (7...0-0 8.Be2–/+) 8.Qf3 (8.bc6 bc6 9.f4 0-0=+) 8...0-0 (8...e5 9.c4–/+) 9.h4 (9.Bf6 Qf6 10.Qf6 gf6=+) 9...Qc7 (9...e5 10.h5–/+) 10.h5 (10.Bf6 gf6 11.Qf6 Be5 12.Qg5 Kh8=+) 10...h6 (10...Be5 11.Be5 Qe5 12.c3–/+) 11.g4 (11.Bf6 gf6 12.c4 Be5=+) 11...Rfc8 (better is 11...Ne4–/+) 12.g5= hg5 13.h6 (better is 13.Bf6 gf6 14.Qf6=) 13...Bf8?? (better is 13...Be5 14.Nc3 d4=+) 14.Bf6 (better is 14.Qf6! d4 (14...gf6?? 15.Bf6 Qh2 16.Rh2 Bh6 17.Rh6 Bb5 18.Rh8) 15.Qg5 Qd8+–) 14...gf6 (14...e5 15.hg7 Bg7 16.Bg7 Kg7+–) 15.Qf6 (15...Qh2 16.Rh2 Bh6 17.Rh6 Bb5 18.Qh8) 1–0. blacksteelballs – Portman, Live Game Caissa's Web, 2005.

3.g3 Nc6 (better 3...Bb4!? 4.Bg2 d5–/+) 4.c3 b5 (4...d5 5.Bg2=+) 5.Na3 (5.a4 ba4 6.d4 Bb7=) 5...a6 (5...a5 6.Nb5 ab4 7.Bg2=+) 6.Bg2= d6?? (6...Bb7 7.0-0=) 7.Ng5?? (better 7.Nd4 Nd4 8.Ba8+– (worse 8.cd4 d5=+)) 7...Nd5 8.e3?? (8.Nh3 Bb7=) 8...Ne5?? (better 8...Qg5 9.0-0 Be7–+) 9.Qh5 (9.d4 A) worse 9...Nc3 10.Qb3 Nd5 11.e4 (worse 11.Bd5 ed5 12.e4 Nc4–/+) 11...Nb4 12.de5 de5 13.0-0+=; B) 9...Qg5 10.e4 Nc3=) 9...g6–/+ 10.Qe2 Bb7 (better 10...Qg5 11.f4 Qh5 12.fe5 Qe2 13.Ke2 de5=+) 11.c4?? (better 11.f4=) 11...bc4–+ (11...Qg5?! 12.cd5 Qh5 13.Bb2=) 12.Nc4 (12.Nf3 Nd3 13.Kd1–+) 12...Nb4?? (better 12...Nc4 13.Ne6 fe6 14.Qc4 Bg7–+) 13.Bb7=+ Nc2?? (better 13...Ned3 14.Kd1 Rb8=+) 14.Kd1+– Rb8?? (better 14...Na1 15.Ne5 Qg5+–) 15.Rb1 (better 15.Ne5 Qg5 16.f4+– (16.Kc2 Rb7 17.Qa6 Qf5 18.d3 Qf2 19.Kd1 de5 20.Qb7 Be7+–)) 15...Nc4 (15...Nd7 16.Nf3 d5+–) 16.Qc4 (16.Kc2?! Na5 17.Qa6 Nb7 18.Rb7 Rb7 19.Qc6 Qd7 20.Qb7 Bg7+–) 16...c5 (16...Be7 17.Nf3+–) 17.Kc2 Qc7 (17...Be7 18.Bc6 Kf8 19.Rb8 Qb8 20.Bb2+–) 18.Qa6 (better 18.Bb2 Rb7 19.Bh8 h6 20.Rb7 Qb7+–) 18...d5 (18...Ke7 19.Kd1+–) 19.Qa4 (better 19.Qc6 Kd8 20.Bb2 d4 21.Qc7 Kc7 22.Nf7 Rg8+–) 19...Ke7 20.d3 (20.Qf4 Qf4 21.gf4 f6+–) 20...Bh6 (20...Rb7 21.Rb7 Qb7+–) 21.Nf3 (21.Qf4 Qf4 22.ef4 f6 23.Ne6 Ke6 24.f5 Kf5 25.Bh6 g5+–) 21...f6 (21...Rb7 22.Qh4 Ke8 23.Rb7 Qb7 24.Qh6 Qa8+–) 22.h4 (22.Qa7 Rhd8 23.Ba3 Rd7 24.Qc5 Kf7+–) 22...Rhd8 (22...Rb7 23.Rb7 Qb7+–) 23.h5 (23.Qc6 Qc6 24.Bc6 Rb1 25.Kb1 Rb8 26.Bb2 Kd6+–) 23...g5 (23...Rb7 24.Rb7 Qb7 25.hg6 Bg7 26.Rh7 Kf8+–) 24.e4 (24.Qc6 Rd7 25.Qc7 Rc7+–) 24...d4 (24...Rb7 25.Rb7 Qb7+–) 25.Bd2 (better 25.Qc6 Qc6 26.Bc6 Rb1 27.Kb1 Rb8 28.Kc2 Kd6+–) 25...Rd6 (25...Rb7 26.Ba5 Ra7 27.Bc7 Ra4 28.Bd8 Kd8+–) 26.e5 (better 26.Ba5 Qd7 27.Qd7 Rd7+–) 26...Rd7 (26...fe5 27.Be4 Rdb6 28.Rb6 Qb6 29.Ne5+–) 27.ef6 (better 27.Bc6 Rb1 28.Rb1 fe5 29.Ng5 e4 30.Bd7 ed3 31.Kd1 Qd7+–) 27...Kf6 28.Ba5 Qd6 29.Nd2 Rdb7 (29...Kg7 30.Rb6 Qe7+–) 30.Ne4 Ke5 31.Nd6 Kd6 32.Bd2 e5 33.Qa6 Kc7 34.Ba5 Rb6 (34...Kd7 35.Rb7 Rb7 36.Qb7 Ke6 37.Rb1 Bf8 38.Qc8 Kf7 39.Qf5 Kg8 40.Rb8 h6 41.Qf8 Kh7 42.Qe7) 35.Bb6 Rb6 (35...Kd7 36.Bc5 Rb4 37.Qd6 Kc8 38.Rb4 g4 39.Rb8) 36.Rb6 g4 (36...Kd8 37.Rb7 c4 38.Qa8) 37.Qb7 (37.Rb7 Kd8 38.Qa8) 37...Kd8 38.Rh6 (38.Rc6 c4 39.Rc8) 38...e4 (38...c4 39.Rh7 cd3 40.Kd2 e4 41.Qd7) 39.Rh7 ed3 40.Kd2 c4 41.Rh8 (41.Qd7) 1–0. scotsman16 – blacke14, gameknot.com, 2017. (=1.Nf3 Nf6 2.b4 e6)

3.a3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3).

3.a3 c5 4.bc5 Bc5 5.e3 d5 6.Bb2 0-0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 0-0).

4.b5 c5 5.e3 d5 6.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a5 5.b5 c5 6.Nf3).

4.b5 c6 5.e3 d5 6.Bb2 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 a5 6.b5).

4.b5 d5 5.e3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.e3 a5 5.b5).

4.b5 d5 5.e3 c5 6.c4 Nbd7 7.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 c5 6.e3 Nbd7 7.c4).

4.Bb2 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 b6 4.Nf3).

4.Bb2 Bb7 5.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bb7).

4.e3 Bb7 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 b6 4.e3 Bb7).

4.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3).

4.Bb2 c5 5.bc5 Bc5 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3).

4.Bb2 c5 5.bc5 Bc5 6.e3 0-0 7.d4 Bb6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 c5 5.bc5 Bc5 6.d4 Bb6 7.e3 0-0).

4.Bb2 c5 5.bc5 Bc5 6.e3 0-0 7.Be2 Nc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 Nc6 7.Be2 0-0).

4.Bb2 Be7 5.g3 0-0 6.Bg2 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.g3 Be7 5.Bg2 0-0 6.Nf3).

4.e3 c5 5.bc5 Bc5 6.Bb2 Nc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 Nc6).

4.e3 c5 5.bc5 Bc5 6.d4 Bd6 7.c4 0-0 8.Nbd2 Nc6 9.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 Nc6 7.d4 Bd6 8.Nbd2 0-0 9.c4).

4.e3 Nbd7 5.c4 c6 6.Bb2 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6).

4.Bb2 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 Be7 4.Nf3).

4.Bb2 0-0 5.e3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 Be7 4.e3 0-0 5.Nf3).

4.d4 (--> 1.b4 Nf6 2.d4 e6 3.a3 Be7 4.Nf3).

4.e3 Bd6 5.b5 Ba3 6.Na3 Qe7=+.

4.e3 Bd6 5.c4 c6 6.b5 c5 7.Bb2 Nbd7 8.a4 0-0 9.Na3 b6 10.Be2 e5 11.cd5 e4 12.Ng5 Be5 (worse 12...Nd5 13.Ne4 Be5 14.d4 cd4 15.Bd4+/-) 13.Qc2 (13.Be5 Ne5 14.d3 ed3 15.Bd3 Re8=) 13...Bb2=+ (worse 13...Nd5 14.Qe4 (14.Ne4?! Nb4 15.Qb1 Bb2 16.Qb2 Re8+=) 14...Qg5 15.Qd5+/-) 14.Qb2 h6 (worse 14...Nd5 15.Ne4 Qe7 16.Nc3+=) 15.Nh3 Nd5 16.Nc4 (16.f3!? Qh4 17.Nf2=) 16...N7f6-/+ 17.0-0 Bh3 18.gh3 Qd7 19.Kg2 Rfe8 20.f4 ef3 21.Rf3 Rad8 22.Raf1 Qe6 23.Rf5 Qe4 24.Kg1 Re6 25.d3 Qh4 26.e4 0-1. Bulcourf,C (1985) - Sorin,A (2395), Liga Nacional Superior (9), 2018. (=1.Nf3 Nf6 2.b4 e6)

4.e3 Bd6 5.Be2 Qe7 6.c3 e5 7.0-0 (7.Qa4 c6=+) 7...0-0 8.d4 (8.Qc2 Bg4=+) 8...e4 9.Ng5 (9.Nfd2!?=+) 9...h6–/+ 10.Nh3 Bh3 11.gh3 Nh7 (11...c6 12.Kg2–/+) 12.Nd2 (12.Qb3 Qh4 13.Qd5 Nf6 (13...Qh3?! 14.Qh5 Bh2 15.Kh1 Qh5 16.Bh5–/+) 14.Qb7 Qh3–+) 12...Nd7 (12...Qh4 13.f3–+) 13.Qb3 (13.c4 dc4 14.Nc4 Rfc8–/+) 13...c6 (13...Qh4 14.b5 Ba3 15.Qa3–/+) 14.c4 Qh4 (14...Qg5 15.Kh1 Nhf6–/+) 15.Bg4 (better 15.b5!? Ba3 16.bc6 bc6 17.Qa3=+) 15...Ndf6–+ 16.b5 (16.Be2 Qh3 17.f4 ef3 18.Nf3 Ng4–+) 16...Ba3 (better 16...dc4!? 17.Nc4 Ba3 18.Na3 Ng4 19.hg4 Qg4 20.Kh1 Qf3 21.Kg1 Ng5 22.Qf7 Rf7 23.h3 Nh3 24.Kh2 Ng5 25.Kg1 Qg4 26.Kh1 Qh3 27.Kg1 Nf3) 17.Qa3 dc4 (17...cb5 18.cd5 Rfd8 19.Kh1–/+) 18.bc6–/+ bc6 (18...Ng4 19.hg4 Qg4 20.Kh1 bc6 21.Qc3–/+) 19.Be2 Ng5 20.Rab1 (20.Nc4 Qh3 21.Qd6 Nd5–/+) 20...Nh3 (20...Qh3 21.f3–+) 21.Kg2–/+ Ng5 (21...Rae8 22.Nc4 Ng4 23.Qd6–/+) 22.Nc4 Nf3! 23.Qd6 (23.Bf3 Qg5 Deflection (23...Qg5 Decoy)) 23...Rfd8 (23...c5 24.dc5 (24.Bf3?? ef3 25.Kh1 Ne4–+) 24...Rfc8 25.Rb5–/+) 24.Qg3 Qg3 (24...Rd5!? 25.Qh4 Nh4 26.Kh3 Ng6=+) 25.hg3= Ng5 26.Ne5 (better 26.Na5 c5 27.Nb7 cd4 28.Nd8 Rd8 29.ed4 Rd4 30.Rfd1=) 26...Rdc8 (better 26...c5 27.dc5 Rd5–/+) 27.Ba6 Rc7 28.Bb7 The isolani on c6 becomes a target (28.Rfc1 Re8 29.Rc6 Ree7+=) 28...Rb8 (28...Rd8 29.Rfc1 Rb8 30.Bc6+=) 29.Bc6 Rb6 (29...Rd8!?+=) 30.Rb6+– ab6 31.Rb1 Ra7 (31...Ng4 32.Rb6 (worse 32.Ng4 Rc6 33.Ne5 Rc2+=) 32...Ne5 33.de5+–) 32.a4+– (32.Rb6?! Ra2 33.Rb8 Kh7+=) 32...Kf8 (32...Ra6 33.d5+–) 33.Rb6 Ne6 (33...g6 34.Rb8 Kg7 35.Rb7+–) 34.Kf1 (34.Be4 Nd8 35.Bc2 Ke7+–) 34...Ke7 (34...Nd8 35.Rb8 Ke7 36.Bb5+–) 35.a5! Nd8 (35...Ra5 36.Rb7 Deflection) 36.a6 Kd6 37.Be4 (37.Nc4 Kc7 38.d5 Nc6 39.Rc6 Kb8+–) 37...Kc7+– 38.Rb7! Nb7 (38...Rb7 39.Bb7 Decoy; 38...Nb7 39.Bb7 Decoy) 39.Bb7 Ne8? (better 39...Nd7 40.Nd7 Kd7+–) 40.Nf7 Kb6 (40...Nf6 41.Ne5+–) 41.Nd8 (41.d5 Nc7 42.d6 Ne6+–) 41...Nd6 (41...Nc7 42.Nc6 Na6 43.Na7 Kb7 44.Nb5+–) 42.Kg2 Kc7 43.Nc6 Rb7 44.ab7 Nb7 45.d5 Kd6 (45...Nc5 46.Kf3+–) 46.e4 Nc5 47.Kf3 Nd3 (47...h5 48.Ke3+–) 48.Ke3 Nc5 49.Nd4 Ke5 (49...g6 50.Nb5 Ke7 51.e5+–) 50.f4 Kf6 51.e5 Ke7 (51...Kf7 52.f5+–) 52.Nf5 (52.f5 Kf7+–) 52...Kf7 53.e6 Ne6 54.de6 Ke6 55.Ng7 Kf6 56.Nh5 (56.Ke4 Kf7+–) 56...Kg6 (56...Kf5 57.Kf3+–) 57.g4 (57.g4 Kh7 58.Ng3+–) 1–0. COMP – Conway,Edward J, US Open St.Paul, 1982.

4.ba6 Na6 5.Bb2 Bb4 6.a3 A) 6...Bc5 7.e3 (7.d4 Be7 8.e3 d5 9.Bd3 0-0 10.0-0 Bd7) 7...d5 8.Be2 0-0 9.0-0 Bd6 10.Nc3 c6; B) 6...Ba5 B1) 7.e4 0-0 8.e5 Ne4 9.Be2 f6 10.0-0 fe5; B2) 7.Nc3 0-0 (7...d6 8.e3 0-0 9.Be2 e5 10.0-0 Re8) 8.e3 d6 9.Be2 e5 10.0-0 Qe7; B3) 7.e3 0-0 8.Bc3 Bc3 9.Nc3 d5 10.d4 c5; C) 6...Be7 C1) 7.e4 d6 (7...0-0 8.e5 Nd5 9.c4 Nf4 10.d4 f6; 7...d5 8.e5 Ne4 9.d3 Ng5 10.Ng5 Bg5) 8.Nc3 Nc5 9.e5 de5 10.Ne5 Ncd7; C2) 7.e3 0-0 (7...b6 8.Ne5 Bb7 9.Bb5 0-0 10.0-0 Ra7) 8.Be2 b6 9.Nc3 d6 10.0-0 e5.

4.ba6 Na6 5.Bb2 Bb4 6.e3 0-0 7.Be2= (7.a3 Be7 8.Be2 b6 9.Nc3 Nc5 10.d4 Nce4) 7...d6 (7...b6 8.a3 Be7 9.0-0 Nc5 10.Nc3 Bb7) 8.c3 Ba5 9.Na3 e5 10.Nc4 c6.

4.ba6 Na6 5.Bb2 Bb4 6.e3 Nc5 7.a3 Ba5 (7...Na4 8.Bd4 Be7 9.e4 d6 10.Bb5 Bd7) 8.Be2 0-0 9.0-0 d6 10.Bc3 e5.

4.ba6 Na6 5.Bb2 Bb4 6.e3 Nc5 7.Bc4 0-0 (7...d5 8.Be2 0-0 9.c3 Ba5 10.Ba3 Nfe4; 7...Nce4 8.a3 Be7 9.0-0 0-0 10.Be2 d5) 8.Bd4 (8.0-0 Nce4 9.Be2 d5 10.d3 Nd6) 8...Nce4 9.Bd3 (9.c3 Be7 10.0-0 c5) 9...b6 (9...d5 10.0-0 c5) 10.0-0 (10.Be4 Ne4) 10...Bb7 11.h3 Ra5 (11...Qe7 12.Be2=+) 12.c3 (12.Be2 Bc5=+) 12...Bd6 13.c4 Qe7 14.Bb2 Rfa8 15.Qc2 (15.a3 Nc5 16.Bc2 Na4 17.Ba4 Ra4=+) 15...Bb4 (15...e5 16.a3–/+) 16.a3=+ Bc5 17.Re1 (17.Be2 Bd6=+) 17...Ra4 (17...d5 18.cd5 ed5 19.Be2=+) 18.h4 (18.Be2 Kh8=+) 18...R8a7 (18...d5!?–/+) 19.Ng5=+ d5 20.cd5 ed5 21.Nf3 (21.Nc3 Nc3 22.Bh7 Kh8 23.Qc3 Rc4=+ (worse 23...Ba3 24.Bc2 Bb2 25.Qb2 Ra1 26.Ra1 Ra1 27.Qa1=; 23...Rh4?! 24.Bd3=+)) 21...Qd7 22.Re2 R4a5 23.Nd4 Ba6 (better 23...Bd4!? 24.Bd4 c5 25.Be4 de4 26.Bf6 gf6–/+) 24.Ba6= R5a6 25.d3 Nd6 26.Nb3 Nb7 27.Bf6 gf6 28.Nc5 Nc5 29.d4 Nb7 30.Re1 c5 (30...Nd6 31.Nc3 c6 32.a4=) 31.Qb2 c4 32.Nc3 f5 33.Qb5 Qe6 (33...Na5 34.Qd5 Qd5 35.Nd5+=) 34.Qd5 (worse 34.Nd5 Ra5 35.Qc4 Rd5=+) 34...Kh8? (better 34...Ra3!? 35.Ra3 Ra3 36.Qb7 Rc3 37.Qb8 Kg7+=) 35.Qe6+– fe6 36.Nb5 Na5 37.Na7 Ra7 38.Rac1 b5 39.Rcd1 Nb3 40.d5 Nc5 (40...Ra3 41.de6 Kg7 42.Rd5+–) 41.de6 Ne6 (41...Nd3 42.Rd2+–) 42.Rd5 Nc7 (42...Ra3 43.Rb5 Kg7 44.Rc1+–) 43.Rd8 (43.Rd7 Kg8+–) 43...Kg7 44.Rd7 Kh8 (44...Kf6 45.Red1 f4 46.ef4+–) 45.Red1 Kg8 46.Re7 Kf8 47.Rh7 Kg8 48.Rdd7 Ra3 49.Rdg7 Kf8 50.Rc7 Ra1 51.Kh2 Kg8 52.Rcg7 (52.Rhd7 Ra8 53.h5 Re8 54.Rg7 Kh8 55.Rh7 Kg8 56.Rcg7 Kf8 57.h6 Re3 58.Rh8) 52...Kf8+– 53.h5 Ra6 54.Rb7 Kg8 55.Rhg7 Kh8 56.Rgc7 Ra8 57.Rh7 Kg8 58.Rbg7 Kf8 59.h6 c3 (59...b4 60.Rh8) 60.Rh8 1–0. Green Light Chess v2.15c – Grizzly125, computer chess game, 2001.

4.ba6 Na6 5.Bb2 Bb4 6.e3 Nc5 7.Be2 0-0 8.0-0 d6 9.c3 Ba5 10.d4 Nce4.

4.ba6 Na6 5.Bb2 Be7 6.e3 Nc5 7.Bb5 Na4 8.Bd4 c5 9.Bf6 Bf6 10.c3 0-0?? (better is 10...Qa5 11.Qb3 0-0=+) 11.Ba4+– d5 12.d4 cd4 13.ed4 b5 (13...Bd7 14.Bd7 Qd7 15.0-0+–) 14.Bb5 Qa5 15.Qd3 Rb8 (15...Bb7 16.0-0+–) 16.a4 g6 (16...Bb7 17.Ne5 Be5 18.de5+–) 17.Nbd2 Bg7 (17...Rd8 18.Nb3 Qc7 19.0-0+–) 18.Ne5 (18.0-0 Rd8+–) 18...Rb5 (18...Be5 19.de5 Rb5 20.Qb5 (20.ab5?! Qa1 21.Nb1 Qa4+/–) 20...Qc3 21.Rb1 Qe5 22.Qe2+–) 19.Nc6 (19.ab5?! Qa1 20.Nb1 f6=; < 19.Qb5 Qc3 20.Rb1 Qd4+–) 19...Ba6 (19...Qa8 20.Qb5 (20.ab5?! Qa1 21.Nb1 Bd7=) 20...Bb7 21.Ne7 Kh8 22.a5+–) 20.Na5 (20.ab5?! Qa1 21.Nb1 Bb7=) 20...Ra5 21.Qb1 Ra8 (21...Bc8+–) 22.Nb3 Rb8 23.Qd1 (23...Rb3 24.Qb3+–) 1–0. Trkn – guest7392, ICC, 2004.

4.ba6 Na6 5.d4 d5 6.e3 Bd6 7.Nbd2 0-0 8.Ne5 c5 9.f4 Qa5 10.Ba6 Ra6 11.0-0 cd4 12.ed4 Bd7 13.Rf3 Ba4 14.Bb2 Rc8 15.Nb3 Qd8 16.f5 Bb3 (16...ef5 17.Rf5 Qc7 18.Qf3–/+) 17.ab3=+ Ra1 18.Ba1 b5 19.fe6 fe6 20.Bb2 Be5 21.de5 Ne4 22.Bd4 Qc7 23.c3= Qa5 24.Qd3 Rf8 25.h4 Qa6 26.Kh2 Qc6 27.Kh3 h6 28.Qe3 Qa6 29.Kg4 Qa2–/+ 30.Rf8 Kf8 31.Qf3 Kg8 32.b4 Qc4 33.Kh3=+ Qc6 34.Kh2 Qe8 35.g3 Qg6 36.Qd3 Qe8 37.g4 Qg6 38.Qe2 Qe8 39.Kh3 Qc6=+ 40.g5 hg5–/+ 41.h5 Kh7 42.Kg2 Qe8 43.Qf3 Kh6 44.c4? Nd2 45.Qg4 Nc4 46.Kg3 Qf7 0–1. Gromek,Jozef – Sliwinski,Henryk, Poland–ch, 1967.

4.ba6 Na6 5.g3 Be7 6.Bg2 0-0 7.0-0 d5 8.d3 b6 9.Qd2 Bb7 10.Rd1 Nc5 11.Qe1 Nfd7 12.h4 f5 13.Ng5 h6 14.Nh3 Bf6 15.c3 Nb3 16.ab3 Ra1 17.Na3 Qe7 18.Nc2 Ra7 19.Nb4 Ra5 20.d4 c5 21.Nc2 Ra2 22.Rd2 g5 23.hg5 hg5 24.f4 g4 25.Nf2 Qh7 26.Nd3 Kf7 27.Ba3 Ra8 28.Bb2 Rh8 29.Ne3 Qh2 30.Kf1 Rh7 31.Ne5 Ne5 32.de5 Be7 33.c4 d4 34.Bb7 de3 35.Rd3 Qh1 36.Bh1 Rh1 37.Kg2 Re1 0–1. Feldstein,R – Pliester,L, Ch New York open, 1989. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

4.e3 Be7 5.c4 (better 5.Ba3=+) 5...e5 (better 5...0-0!?=+) 6.Ne5+= 0-0 7.Bb2 (7.Nc3 d6 8.Nf3 d5+=) 7...d5= 8.a4 Nbd7 9.ba6 Ne5 (9...Ra6 10.Nd7 Qd7 11.cd5=) 10.Be5 Ra6 11.Nc3 Rc6 (11...dc4 12.Bc4 Rc6 13.Qe2+=) 12.Qb3 Nd7 (12...Rb6 13.Qc2+=) 13.Bg3 (13.Bd4 Bc5 14.Nb5 dc4 15.Bc4 Rg6=) 13...d4 (better 13...Nc5!? 14.Qc2 d4=) 14.ed4+= Bf6 (14...f5 15.Nd5+–) 15.d5+– Rb6 (15...Nc5 16.Qa3 Be7 17.Nb5+– (17.dc6?! Nd3 18.Bd3 Ba3=)) 16.Qa2+= Re8 (16...Bc3 17.dc3 Qf6 18.Rc1+– (18.Bc7?? Qc3 19.Kd1 Rb2 20.Qb2 Qb2–+)) 17.Be2+– Qe7 18.Bc7 Bc3 19.dc3 Rf6 20.Bg3 (20.a5 Nc5 21.Bb6 Bg4+=) 20...Nc5+= 21.Rd1 (21.Kf1 Qe3 22.f3 Ne4=+) 21...Bg4 22.Rd2 (22.f3 Qe3 23.Kf1 Ne4=) 22...Ne4 23.f3 (23.d6 Qd8 (worse 23...Nd6 24.f3+–) 24.f3 Nd2 (worse 24...Nc3 25.Qb2 Ne2 26.Re2 Qa5 27.Kf1 Re2 28.Qe2+=) 25.Qd2 Rfe6 26.fg4 Qb6=+) 23...Nd2 (worse 23...Nc3 24.Qc2 Bf3 25.gf3+–) 24.Qd2 Bf3 25.gf3 Rf3 26.Rf1 (26.Bf2 Qe4 27.0-0 Qe2=) 26...Re3 27.Rf2 Qe4 28.Qb2 Qh1 29.Kd2 Qe4 30.Kd1 Qh1 31.Kd2 Qe4 32.Kd1 Qh1 33.Kd2 Qe4 34.Kd1 Qh1 35.Kd2 Qe4 36.Kd1 Qh1 37.Kd2 Qe4 38.Kd1 Qh1 39.Rf1 Qe4 (39...Qg2 40.Re1 Rd3 41.Kc1=) 40.Rf2 (better 40.Re1!? h5 41.a5+–) 40...Qh1= 41.Rf1 Qe4 42.Rf2 (better 42.Re1!? h5 43.a5+–) 42...Qh1= 43.Rf1 Qe4 44.Rf2 (44.Re1 Qf5 45.Qb7 Rd3 46.Bd3 Qd3 47.Kc1 Qc3 48.Kb1 Re1 49.Be1 Qe1 50.Ka2 Qd2 51.Qb2+–) 44...Qh1= 45.Rf1 Qe4 46.Rf2 (better 46.Re1!? Qf5 47.a5+=) 46...Qh1= 47.Rf1 Qe4 48.Rf2 ½–½. caacaacaa (1855) – fasano (1755), gameknot.com, 2011. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

5.Bb2? bc4–+ 6.e4 (6.Nc3 Nc6–+) 6...d5 7.ed5 ed5 (7...Qd5?! 8.Nc3 Qc5 9.a4–+) 8.Be2 Bd6 9.Nc3 Be6 (9...c6 10.0-0–+) 10.Qc2 0-0 11.Rg1 (11.Nb5–+) 11...c6 (11...Qd7 12.d3–+) 12.h3 (12.Kf1 Na6–+) 12...b5 (12...Na6 13.Kf1–+) 13.a3 (13.Ng5 Nbd7–+) 13...Re8 14.Kd1 (14.Kf1 Nbd7–+) 14...Qb6 15.Rf1 (15.Ke1 Bc5 16.Kf1 Bf2–+) 15...Nbd7 16.g4 (16.d4 c5 17.Qd2 b4 18.dc5 Nc5 19.ab4 Ra1 20.Ba1 Nb3–+) 16...Nc5 17.Ng5 (17.Nd4 Nb3 18.Nb3 cb3–+) 17...Nb3 (17...d4 18.Bf3 dc3 19.Bc3–+) 18.f4 (18.Ne6 Na1 19.Ba1 Re6–+) 18...Na1 19.Ba1 Ra3 (better 19...d4!? 20.Ne6 Re6 21.g5 Re2 22.Ne2–+) 20.Bb2 Rb3 21.f5 (21.Ne6 Re6 22.f5 Re5–+) 21...Bd7 22.Nf7 Kf7 23.g5 d4 24.gf6 Rb2 (24...Kf6 25.Ne4 Re4 26.Qe4 Rb2 27.Kc1–+) 25.Bh5 (25.Qb2 dc3 26.Bc4 Kf6 27.Qc3 Be5–+) 25...Kf8 (better 25...Kf6 26.Qb2 dc3 27.Qc3 Re5 28.Qb2–+) 26.fg7 (26.Qb2 dc3 27.fg7 Kg7 28.Qc3 Be5–+) 26...Kg7 27.f6 (27.Qb2 dc3 28.Qc3 Be5 29.f6 Kh6–+) 27...Kh6 28.Qb2 Kh5 29.Ne2 (29.f7 Rf8 (29...dc3 30.Qc3 Re4 31.Qf3 Rg4 32.Kc2=+) 30.Ne4 Be7–+) 29...Be5 (better 29...Bc5!? 30.Qa1–+) 30.f7 Rf8 31.Qa3 c5 (better 31...Qb8 32.Ng3 Kg6–+) 32.Qf3 Kh6 33.Ng3?? (better 33.Nf4 Kg7 34.Rg1 Kh8 35.Qd5–/+) 33...Qg6 34.Ne4 (34.Nf5 Bf5 35.Qf5–+) 34…Bc6 0–1. yodamo – J. Raymond, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 b6 6.Bb2 Bb7 7.e3 Bb4 8.Bd3 d5 9.Nc3 c5 (9...Nbd7=+) 10.Ne2 (10.bc6!? Nc6 11.0-0=) 10...Nbd7 11.Ng3 c4 12.Bc2 Nc5 (12...0-0 13.0-0–/+) 13.Ne5=+ 0-0 14.Ng4? (14.0-0 Qc7=+) 14...Nce4 (better 14...Nfe4!? 15.Ne4 Ne4 16.Be4 de4–+) 15.Nf6 Nf6 (worse 15...gf6 16.Be4 de4 17.Nh5+–) 16.Nh5 (16.0-0 g6–/+) 16...Nh5 17.Qh5 g6 (17...f5 18.f4–/+) 18.Qh6 (18.Qe5 c3 19.Bc3 Bc3 20.dc3 Rc8=) 18...f6 (18...d4 19.Bd4 e5 20.Bc3 Bc3 21.dc3 Bg2 22.Rg1–+) 19.h4? (19.Bg6 Qc7 20.Bc2 c3 21.dc3 Bc3 22.Bc3 Qc3 23.Kd1 Rf7= (23...Qa1?? 24.Kd2 Qc3 25.Kc3+–)) 19...Rf7 (19...Qc7!? 20.Bc3 Bc3 21.dc3 Ra3–+) 20.h5=+ Bf8 21.Qf4 e5 (21...g5 22.Qg4 f5 23.Qg3=+) 22.Qh4 (22.Qg4 Qc8 23.Qc8 Bc8 (worse 23...Rc8 24.hg6 hg6 25.Bg6+=) 24.hg6 hg6 25.Bg6 Rg7=) 22...g5–/+ 23.Qg3 (23.Qg4 Bc8 24.Qe2 Ba3–/+) 23...h6 (better 23...d4!?–+) 24.Bg6=+ Rg7 25.f4 (25.0-0 Qd7 26.a4 Bb4=+) 25...d4 (25...ef4!? 26.ef4 Re7 27.Kf2 d4–/+) 26.fe5= c3 27.dc3 de3 28.ef6?? (better 28.Qe3 Bc5 29.Qe2=) 28...Qd2 29.Kf1 e2 30.Kg1 Bc5 (30...Bc5 31.Kh2 Bd6 32.f7 Kf8 33.Ba3 Ra3 34.Be4 Bg3 35.Kh3 Qf4 36.Bb7 g4) 0–1. yodamo – esteritafelix, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 b6 6.Bb2 Bb7 7.e3 c5 8.Be2 d5 9.0-0 g6 (9...Bd6 10.Be5=+) 10.d4 Nbd7 11.dc5 Nc5 12.Nbd2 Bg7 13.Nb3 Nb3 (13...Nce4 14.Bd4=) 14.Qb3 0-0 15.Rac1 (15.Rfc1 Ne4=) 15...Ne4 16.Ba3 (16.Bg7 Kg7 17.Qb1 Qe7=) 16...Re8 17.Rfe1 (17.Rc2 Qd7=) 17...Qb8 18.Bb4 Qa7 (18...Rc8 19.Rc8 Qc8 20.Qb1=) 19.Rc2 (19.a3 Nc5 20.Qb1 Rec8=) 19...Qa4 (19...Nc5 20.Qb1=) 20.Qb1 (20.Qa4 Ra4 21.a3 h6+=) 20...Rec8 21.Rec1 Rc2 22.Rc2 Rc8 23.Rc8 Bc8 24.a3 Nc3 25.Bc3 Bc3 26.Qc1 Qb3 27.Nd4 Qb2 28.Qb2 Bb2 29.Nc6 (better 29.a4!?=) 29...Ba3–/+ 30.Kf1 f6 (30...Bd6 31.f4–/+) 31.Ke1 (31.f4 Bd6–/+) 31...e5 (31...Bd6 32.h3–/+) 32.Kd2 (32.Bd1!?=+) 32...Kf7–/+ 33.Bd1 (33.g4 Ke6–/+) 33...Ke6 34.f4 (34.Bg4 f5 35.Be2 Kd6–/+) 34...Kd6–+ 35.g4 (35.Ba4 Bf5–+) 35...Kc5 (35...Bd7!? 36.g5 ef4 37.gf6 fe3 38.Ke3–+) 36.fe5–/+ fe5 37.Ne5 Kb5 38.h4 (38.Be2 Kc5–/+) 38...Be6 (38...Bb4 39.Kc2–/+) 39.h5 (39.Be2 Kc5–/+) 39...Bd6 (39...Bb4 40.Kd3 Bd6 41.Nf3–/+) 40.Nf3 (40.Be2 Kc5 41.Nd3 Kc6–/+) 40...Kb4 (40...Kc5 41.Ng5 Bg8 42.hg6 hg6 43.Bb3–/+) 41.Nd4 (41.Ng5 Bg8–/+) 41...Bf7 (41...Bd7 42.hg6 hg6 43.g5–/+) 42.Bc2 (42.Be2 Be8–/+) 42...Bc5 (42...gh5!? 43.gh5 Bh5 44.Bh7 Bg4–/+) 43.Nc6=+ Ka3 44.Ne5 (44.hg6 Bg6 45.Bg6 hg6 46.Ne5–/+) 44...Be8 (better 44...Be6!?–/+) 45.hg6+= hg6 46.Ng6 (46.Bg6!? Bg6 47.Ng6+=) 46…b5= ½–½. Shamanov,Albert – Androsenko,Igor (2010), Soukhumi op, 2007. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 b6 6.Bb2 Be7 7.e3 Bb7 8.Bd3 d6 9.Nc3 Nbd7 10.a4 e5 11.Bf5 (11.Bc2 0-0=+) 11...0-0 12.h4 (12.0-0 e4 13.Nd4 Nc5=+) 12...Nc5 13.Ng5 (13.d4 ed4 14.ed4 Ne6=+) 13...h6 (better 13...e4 14.Ba3 Nd3 15.Kf1 d5 16.Be7 Qe7–+) 14.Nce4?? (better 14.d4 g6 15.Bc2 ed4 16.ed4 Na4 17.Ra4 (17.Na4 hg5 18.hg5 Nd5=+) 17...Ra4 18.Nf7 (worse 18.Ba4 hg5 19.hg5 Nh5–/+) 18...Rf7 19.Ba4=+) 14...Nce4 (better 14...Nfe4 15.Ne4 Be4 16.Be4 Ne4–+) 15.Rc1 (15.Ne4 Be4 16.Be4 Ne4–+) 15...Nc5 (15...hg5!? 16.d3 gh4 17.Be4 Ne4 18.de4 Be4 19.f3–+) 16.Rc5 (16.d4 Na4 17.Ba1 e4–+) 16...bc5 17.f4 (17.Qc2 Re8–+) 17...g6 18.g4 (18.Bc2 ef4 19.ef4 Bg2 20.Rh2–+) 18...Bh1 19.fe5 de5 20.Be5 Qd5 21.Bf6 Bf6 22.e4 Qe5 0–1. yodamo – Allen de Ohio, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 b6 6.Bb2 Bb7 7.e3 c5 8.Be2 d5 9.0-0 g6 10.d4 Nbd7 11.dc5 Nc5 12.Nbd2 Bg7 13.Nb3 Nb3 14.Qb3 0-0 15.Rac1 Ne4 16.Ba3 Re8 17.Rfe1 Qb8 18.Bb4 Qa7 19.Rc2 Qa4 20.Qb1 Rec8 21.Rec1 Rc2 22.Rc2 Rc8 23.Rc8 Bc8 24.a3 Nc3 25.Bc3 Bc3 26.Qc1 Qb3 27.Nd4 Qb2 28.Qb2 Bb2 29.Nc6 (better is 29.a4!?=) 29...Ba3–/+ 30.Kf1 f6 31.Ke1 e5 32.Kd2 Kf7 33.Bd1 Ke6 34.f4 Kd6 35.g4 Kc5 36.fe5 fe5 37.Ne5 Kb5 38.h4 Be6 39.h5 Bd6 40.Nf3 Kb4 41.Nd4 Bf7 42.Bc2 Bc5 43.Nc6 Ka3 44.Ne5 Be8 (44...Be6!? 45.hg6 Bd6–/+) 45.hg6= hg6 46.Ng6 b5 ½–½. Shamanov,Albert – Androsenko,Igor (2010), Soukhumi op, 2007. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

5.cb5 b6 6.e3 Bb7 7.a3 Be7 8.Bb2 0-0 9.Nc3 c5 10.d4 d5 11.dc5 Bc5 (11...bc5 12.Be2=+) 12.Na4 (12.Bd3 Bd6=) 12...Be7 13.Bd4 (13.Bd3 Nbd7=) 13...Nbd7=+ 14.Ne5 Ne5 15.Be5 Nd7 16.Qg4?? (16.Bb2 Bf6 17.Ra2 Bb2 18.Nb2 Qe7-/+) 16...Bf6 (better 16...Ne5 17.Qd1 Ra5-+) 17.Bf6-/+ Nf6 18.Qd4 (18.Qb4!?-/+) 18...e5! 19.Qe5? (better 19.Qb4-/+) 19...Ra4-+ 20.Bd3 Re8 21.Qf5 (21.Qb2 d4 22.Bc2 Ra5-+) 21...g6 (better 21...Bc8 22.Qg5 Rg4 23.Qg4 Ng4-+) 22.Qf3 Ne4 (22...Ra7 23.0-0 d4 24.Qf4 de3 25.fe3 Qd3 26.Qf6 Qe3 27.Kh1-+) 23.Be4 (23.0-0 d4 24.Rfd1 Qe7 25.Be4 Be4-+ (25...Qe4?! 26.Qe4 Re4 27.ed4-+)) 23...de4 24.Qe2 1-0. ppsd (1630) – denisdesouza, Rated Classical game, lichess.org, 2015.

5.cb5 c5 6.Bb2 b6 7.e3 Bb7 8.Be2 Be7 9.0-0 (9.d4 0-0=) 9...d6 (9...d5 10.d4=) 10.d3 (10.d4 Nbd7=) 10...Nbd7 11.Nbd2 (11.Qc2 e5=) 11...0-0 12.a4 Nd5 (12...e5 13.e4=) 13.Nc4 Qc7 (13...Bf6 14.d4 (14.Nd6? Bb2 15.Nb7 Qb8–+) 14...Qb8 15.a5 ba5 16.Na5=) 14.Qd2 f5 (14...Nb4 15.d4=) 15.a5 ba5 16.Ra5 (16.Na5 Rfb8=) 16...Ra5 17.Na5 Ba8 18.d4 (18.Rc1 Rb8 19.d4 Qb6=) 18...N5b6 19.dc5 Nc5 20.Rc1 Bf6 (20...Bd5 21.Bd4=) 21.Nd4 (21.Bd4 e5=) 21...Bd5 22.Bf3 Qf7 23.Bd5 Nd5 24.Rd1 ½–½. Tsoukkerman – Obers (2145), Dieren, 1997. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 c5 6.e3 d5 7.Bb2 Be7 8.Be2 0-0 9.0-0 Nbd7 10.Ne5 (10.Qc2 Bd6=) 10...Ne5 (10...Qb6 11.a4=+) 11.Be5 Nd7 12.Bb2 Bf6 (12...Bd6 13.f4=+) 13.d4 b6 (13...Re8 14.Qc2=+) 14.Bf3 (14.Qc2 Bb7=) 14...Bb7=+ 15.Nc3 (15.Qd2 cd4 16.ed4 Bg5=+) 15...Ra5 (15...Qe7 16.dc5 Nc5 17.Qd2=+) 16.a4 Qa8 17.Ne2 (17.Rc1 Rc8 18.Be2 e5=+) 17...Rc8 (17...cd4 18.Bd4 Bd4 19.Qd4=+) 18.Bc3 Ra7 19.dc5 Bc3 (19...Rc5 20.Bf6 Nf6 21.Qd4=+) 20.Nc3 Nc5 21.Ra3 Qb8 22.Qd4 Qc7 (22...Qd6 23.Rfa1=+) 23.Rfa1 Rca8 24.h3 (24.Rd1 Qd6=+) 24...h6 (24...Qe7 25.R1a2=+) 25.Bd1 (25.Rd1 Ra5=+) 25...Qe7 (25...e5 A) 26.Nd5? Qd6 (26...ed4?! 27.Nc7 Rd8 28.ed4 Rd4 29.Bc2+=) 27.Qg4 Qd5–+; B) 26.Qg4=+) 26.f4 (26.Bc2 e5 27.Qd2 Qd6=+) 26...Nd7 (26...Ra5 27.Bc2=+) 27.Bf3 Qc5 (27...Rc8 28.Qd2=+) 28.Kf2 (28.f5 Qd6=) 28...Qd4 (28...Ra5!?=+) 29.ed4= Rc8 (29...Kf8 30.g3=) 30.Ke3 (30.f5 Nf6 31.fe6 fe6+=) 30...Nf6 (30...Kf8 31.Kd3=) 31.Kd3+= Rca8 1–0. Matveenko,Yury (2140) – Kozhevnikov,Evgraf (1965), 14th FIDE Open, Voronezh RUS, 2010. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 Bc5 6.Bb2 0-0 7.e3 b6 8.Qc2 h6 9.g4 (9.d4!? Be7 10.Be2=) 9...Bb7=+ (9...Ng4? 10.Qe4 Nf2 11.Kf2+– (11.Qa8?! Nh1 12.Qb8 g5+–)) 10.Bg2 (10.Be2 d5=+) 10...Ng4–/+ 11.Rg1 Nf6 (11...f5 12.Nc3–/+) 12.Ne5 (12.Ng5! hg5 13.Bb7=) 12...Bg2–/+ 13.Rg2 d5 (13...d6 14.Ng4 Ng4 15.Rg4–/+) 14.Ng4 (14.Nc3 Kh8=) 14...Ng4–/+ 15.Rg4 f6 16.Qg6 Qe7 17.Qh6 e5 (17...Ra4! 18.d4 Rb4–/+) 18.Nc3= Rd8 (18...Qd7 19.Rg3 Rf7 20.0-0-0+–) 19.Qg6 (better 19.0-0-0!? f5 20.Rg5+=) 19...Qf7=+ 20.Qf5 c6 21.a4 cb5 22.Nb5 Nc6 23.f4 (better 23.Rh4 d4 24.Nc7 de3 25.fe3+–) 23...ef4?? (23...Ne7!? 24.Qc2 e4–/+) 24.Rf4?? (better 24.Bf6 Bf8 25.Qf4+– (25.ef4? Re8 26.Kd1 Re6–+)) 24...Ne7=+ 25.Qh3 Ng6 26.Rg4 Ne5 (26...Ne5 27.Be5 fe5+–) 0–1. yodamo – robbyc1, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

5.cb5 c6 6.e3 Qa5 (6...d5 7.Nc3=) 7.Qb3 (7.Nc3 d5=) 7...Qb4 (7...d5 8.Bb2=+) 8.Qb4 (8.Qc2 d5+=) 8...Bb4= 9.Bb2 Nd5 (9...d5!?=) 10.Bg7+= Rg8 11.Be5 (11.Bb2 cb5 12.g3 b6+=) 11...cb5 12.Bb5 f6 (12...Nc6 13.Bg3+=) 13.Bb8 (13.Bg3 Na6+=) 13...Rb8+= 14.0-0 (14.g3 Kf7+=) 14...Nc7 (14...b6 15.Rc1=) 15.Ba4 (better 15.Bd3!?+–) 15...b5= 16.Bb3 Bb7 17.Kh1 Ke7 18.d3 (18.Nc3 Rg7=+) 18...Bf3 (18...Rbc8 19.a4=) 19.gf3 Rg6 (19...Rbc8 20.a4=) 20.Rg1 (20.Rc1 Na6 21.a3 Ba5=) 20...Rbg8 21.Rg6 hg6 22.a4 Rh8 23.Na3 ba4 24.Ba4 Bd6 The pawn on h2 gets attacked 25.f4 e5 26.Nc4 (26.fe5 Be5 27.d4 Bh2+=) 26...ef4 27.Nd6 Kd6 28.e4 Ra8 29.Kg2 (29.Ra2 f3 30.Bb3 Rb8=+) 29...Ne6 (better 29...Nb5 30.Rb1 Nc3 (30...Ra4?! 31.Rb5 Ke6 32.Kf3=) 31.Rb6 Kc5 32.Rf6 Ra4 33.Rg6 Rd4–/+) 30.Kf3? (better 30.Ra2!? Nc5 31.Bb3 Ra2 32.Ba2 Nd3 33.Bb1–/+) 30...Nc5–+ 31.Kf4 (31.d4 Na4 32.Kf4 Ke7–+) 31...Ra4 (31...Na4?! 32.h4–+) 32.Ra4 Na4 33.h4 (33.Ke3 Ke6–+) 33...Ke6 (33...Nc3 34.Ke3–+) 34.d4 (34.Ke3 Nc3–+) 34...Nc3 35.d5 Kf7 (35...Kd6 36.Ke3–+) 36.Ke3 (36.f3 d6 37.Ke3 f5–+) 36...d6 37.f4 (37.Kd4 Nb5 38.Kd3 Nc7–+) 37...Kg7 (37...f5!? 38.Kd4 Ne4 39.Kc4–+) 38.Kf3?? (38.Kd4 Ne2 39.Ke3–+) 38...Kh6 (better 38...f5 39.e5 de5 40.fe5 Nd5–+) 39.Kg4 White plans f5 (39.e5 Nb5 40.ef6–+) 39...Ne4 40.f5 g5 41.hg5 Ng5 0–1. yodamo – blackcrowman, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

6.Bb2 Bb4 7.e3 0-0 8.Bd3 Nbd7 9.g4 (9.Ne5!?=+) 9...Ng4–/+ 10.Rg1 Nc5?? (10...f5 11.h3 Ngf6 12.Nd4–/+) 11.Bc2?? (11.Bh7 Kh7 12.Qc2 Ne4 13.Rg4 Be7 14.Rg7 Kh6+–) 11...Ne4?? (better 11...f5–/+) 12.Rg4+– Bc5?? (12...e5 13.Rg2 Bh3+–) 13.Rg7 Kh8 14.Rf7 Kg8 (14...d4 15.Rf8 Qf8 16.Be4+–) 15.Rg7 Kh8 16.Rd7 Kg8 17.Rd8 Rd8 18.Be4 de4 19.Ng5 Bd7 20.Qh5 Be8 (20...Bd4 21.Qh7 Kf8 22.Qf7) 21.Qh7 Kf8 22.Qg7 (22.Ne6) 1–0. yodamo – alfreduss, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

6.Bb2 c5 7.e3 Nbd7 8.Be2 Bd6 9.d4 (9.0-0 e5 10.d3 0-0 11.Qc2 Qc7 12.Nc3 Ra5) 9...Ne4 (9...c4 10.0-0=+ Qa5 11.a4 0-0 12.Bc3 Bb4) 10.0-0 (10.dc5 Ndc5 11.0-0 f6 12.Bd4 0-0) 10...0-0 (10...c4 11.Qc2 Ndf6 12.Ne5 Qb6) 11.Nbd2 (11.dc5 Ndc5 12.Nc3 Qc7) 11...f5 (11...Nd2 12.Qd2 c4 13.a4=+) 12.dc5= Ndc5 13.a4 (13.Qc2 b6=) 13...Qc7=+ 14.g3 b6 15.Nd4 (15.Ne4 fe4 16.Nd4 Bd7=+) 15...Bd7–/+ 16.Ne4 fe4 17.Bg4 (17.f4 Ra7=+) 17...Qc8 (17...e5 18.Bd7 Qd7–/+ (worse 18...Nd7 19.Ne6 Qb7 20.Nf8 Rf8 21.f3+–)) 18.Rc1 Qe8 19.Bh5? (better 19.Ba3!?=+) 19...g6–+ 20.Be2 Na4 21.Ba1 Nc5 22.Nb3 Qe7 23.Nd4 Qe8 24.f4 (24.Nb3 Bb5 25.Bb5 Qb5 26.Qd4 Ra1 27.Na1–/+) 24...Be7 (24...ef3 25.Nf3 Bb5 26.Bb5 Qb5 27.Qd4–/+) 25.Bg4 (25.Qd2 Bf6–/+) 25...Bf6 (worse 25...Bb5 26.Nb5 Ra1 27.Ra1 Qb5 28.Ra7=+) 26.Bc3 (26.Be2 Ra2–/+) 26...Qf7 (26...Bb5 27.Nb5 Qb5 28.Bd4–+) 27.Bb4 (27.Be2 Rfc8–/+) 27...Rfc8–+ 28.Be2 h5 (28...Ra2 29.Ra1 Ra1 30.Qa1–+) 29.Ra1 Ra1 30.Qa1 Nb3! 31.Qb2 (31.Nb3 Ba1) 31...Nd4 32.ed4 Qg7 33.Rd1 Be8 (33...h4 34.gh4 Qh6 35.Bd6–/+) 34.Bd6 g5 35.Qb4 (35.fg5 Qg5 36.Bf4 Qg7=+) 35...Rc2 36.Kf1 h4 37.Qa4 (37.fg5 Qg5 38.Qa4 Qf5 39.Bf4 hg3 40.hg3 Qh3 41.Ke1 Qh1 42.Bf1–+) 37...Re2!–+ 38.Qa8 (38.Ke2 Bh5) 38...Rh2 39.Qe8 Kh7 40.Bf8? (40.Qh5 Qh6 41.Qh6 Kh6 42.fg5 Bg5 43.gh4 Rh4 44.Kg2–+) 40...Qg6 41.Qe6 (41.Qd7 Kg8 42.Kg1 hg3 43.Qe6 Kf8 44.Qd6 Kg7 45.Qd5 Rh1 46.Kg2 Rd1 47.Qd7 Qf7 48.Qf7 Kf7 49.fg5–+) 41...hg3 42.Bd6 (42.Qd7 Kh8 43.Be7 Be7 44.Qe7 Rh1 45.Kg2 Rd1 46.fg5–+) 42...gf4 43.Qd7 Bg7 44.Kg1 (44.Qf5 Qf5 45.Be5 Qh3 46.Ke1 Rg2 47.Bg7 Qh1) 44…Rh1! (44...Rh1 45.Kh1 Qh5 46.Qh3 Qh3 47.Kg1 Qh2 48.Kf1 Qf2) 0–1. Hecimovic,Ivan – Radocaj,Denis, Pula, 1996. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5 5.cb5 d5)

6.Bb2 Bd7 7.a4 c6 8.Nc3 Bb4 9.e3 Qb6 10.Qb3 Bc3 11.Bc3 cb5 12.ab5 Ra1 13.Ba1 Na6? (better is 13...0-0+=) 14.Bd4+– Nc5 15.Qa3 Nfe4 16.d3 (16.Bg7?! Rg8 17.Bb2 Qc7+–) 16...Qb5 17.de4?? (better is 17.Nd2 Nd2 18.Bc5 Nf3 19.gf3+–) 17…Qb1 (17...Qb1 18.Kd2 Ne4 19.Ke2 Bb5 20.Qd3 Bd3) 0–1. Dudko,Gennady – Lunga,Oleg, Omsk–ch op, 2009. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

6.Bb2 Bd7 7.e3 Bb4 8.Bd3 0-0 9.g4 (9.Qc2 Bd6=) 9...h6 (better 9...Ng4!? 10.Rg1 f5–/+) 10.g5= hg5 11.Ng5 e5 (11...Bd6!?=) 12.Be5+= Ng4 13.f4?? (better 13.Nf3 Ne5 14.Ne5+=) 13...Ne5–+ 14.Bh7 Kh8 15.Qh5?? (15.Qb3 Be7 16.h4–+) 15...Re8 (better 15...Bg4 16.Qh4 Qg5 17.Qg5 Nf3 18.Kf2 Ng5 19.fg5 Kh7–+) 16.fe5+– Be6 (16...Qg5 17.Qg5 Bd2 18.Kd2 Kh7 19.Nc3+–) 17.Nf7 (17.Bg6 Kg8 18.Bf7 Kf8 19.Be6 Qd7 20.Bd7 Bd2 21.Nd2 g6 22.Qh8 Ke7 23.Qe8) 17...Bf7+– 18.Bg6 Kg8 19.Bf7 Kf8 20.Be8 (20.Rf1 Qf6 21.ef6 Re3 22.Kd1 gf6 23.de3+–) 20...Qe8 21.Rf1 Ke7 22.Qg5 Kd7 23.Qg7 (23.Qg7 Be7 24.Nc3+–; better 23.Qg4 Kd8 24.Qb4 Nd7 25.Qh4 Kc8+–) 1–0. yodamo – simonm, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5 5.cb5 d5)

6.Bb2 Nbd7 7.e3 Bd6 8.d4 0-0 9.Nbd2 Nb6 10.a4 Bb4 11.Qb3 Qe7 12.Bd3 Ne4 13.Ke2 (13.Qc2!?=) 13...Nd2+= 14.Nd2 Rd8 15.Rhc1 h6 (15...e5 16.de5 Bd2 17.Kd2 Nc4 18.Ke1=) 16.Bc3 (16.Nf3 Bd6+=) 16...Bc3 17.Rc3 e5 18.de5 (better is 18.Kf1!?=) 18...Qe5–/+ 19.Nf3 (better is 19.Kf1!? Qh2 20.Nf3 Qh1 21.Ng1–/+) 19...Bg4–+20.Rac1 (20.a5 d4 21.Rcc1 Bf3 22.gf3–+) 20...Bf3?? (better is 20...d4 21.Rc7 Nd5–+) 21.gf3 d4 22.Rc7 (better is 22.Rc5!? Qh2 23.e4–+ (23.Rc7?? Nd5 24.R7c4 de3–+)) 22...Nd5–+ 23.R1c5 de3?? 24.Be4?? Qh2–+ 25.Bd5 Qf2 26.Kd3 Qd2 27.Kc4 e2 28.Re7 Rd5! 29.Rd5 Rc8 30.Rc5 Qc1 31.Kd3 Qd1 32.Kc4 Rc5 33.Kb4 Qd4 34.Ka5 Qd8 (34...Qd8 35.Kb4 Qe7 36.Qd3 e1Q 37.Kb3 Q7e6 38.Ka3 Rc3 39.Kb4 Rb3 40.Kc5 Qb4) 0–1. Fichte,Wolfgang – Koller,Jens, Sauerland Stern Hotel op 1st, 2001. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 ab5)

6.e3 c5 7.Bb2 Bd6 8.Bd3 Nbd7+= 9.Bc2 (9.Be2 0-0–/+) 9...b6 (9...e5!? 10.Nh4 g6–/+) 10.d3 Bb7 11.a4 (11.Nbd2 0-0+=) 11...0-0 (11...Qc7 12.a5 Ra5 13.Ra5 ba5 14.0-0–/+) 12.Nbd2 Qc7 13.Qe2 (13.0-0 Ng4 14.g3 f6+=) 13...Rac8 (13...e5 14.Rd1+=) 14.Rc1 (14.a5 c4 15.ab6 Nb6 16.dc4 Nc4 17.Nc4 dc4 18.Bf6 gf6+=) 14...Qb8 (14...e5!?–/+) 15.e4 (15.0-0 Ng4 16.Kh1 Nge5+=) 15...Ne5 (15...c4 16.dc4 Ne4 17.a5 Nd2 18.Nd2= (worse is 18.Qd2 dc4 19.Qc3 Nf6–/+)) 16.Be5 Be5 17.Ne5 Qe5 18.0-0 Rfd8 19.Nf3 Qf4 20.e5 Nd7 21.Rfe1 d4 22.Qd2 Qg4 23.Bd1 h6 24.h3 Qf5 25.Nh4 Qh7 26.Bf3 Ba8 27.Ba8 Ra8 28.Ra1 Ra5 29.f4 (29.Nf3 Qf5=) 29...Rda8 (29...c4 30.dc4 Nc5 31.Ra2+=) 30.Qc2 Kh8 (30...Nf8 31.Kh2+=) 31.f5 (31.Nf3 Qf5 32.Nd2 Qf4=) 31...ef5 (31...Re8 32.Qa2=) 32.Qc4 g5 33.e6 fe6 34.Re6? gh4–/+ 35.Rae1 Rf8?? 36.Re7= Qg8 37.Rd7 Qc4 38.dc4 Kg8 39.Ree7 Rf6 40.Rg7+= Kh8 41.Rh7 Kg8 42.Rdg7 Kf8 43.Rb7 Kg8 44.Rhc7 Ra4 45.Rc8 Rf8= 46.Rcc7 Rf6 47.Rc8 ½–½. Palmi,Herbert – Schubert,Josef, Niederbayern–ch, 2002. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

6.g3=+.

5.d3 dc4-/+ 6.dc4 Qd1 7.Kd1 Ne4 8.Ke1 (8.Be3 ab5 9.cb5 Bd7-/+) 8...Bb4-+ 9.Bd2 Nd2 10.Nbd2 ab5 (10...0-0 11.Rb1 Be7 12.Rb2-+) 11.cb5 Bd7 (better 11...0-0-/+) 12.Nd4?? (better 12.e3!?=+) 12...c5 (better 12...Bc3 13.Rc1 Bd4-+) 13.bc6 Nc6 14.Nc6? (14.N4f3-+) 14...Bc6 (14...bc6?! 15.e3-/+) 15.Rg1?? (15.Rb1 Ba5 16.Rb3 Ba4-+) 15...Ke7 (better 15...0-0-0 16.f4 Rd2 17.a3-+) 16.g3 (16.Rb1 Ba5 17.g4-+) 16...Rhd8 17.Rd1 (17.f3 Rd2 18.a3 Rb2 19.Kf2 Bc5 20.Kg2 Bf3 21.Kf3 Bg1-+) 17…Ra2 (17...Ra2 18.f3 Bd2 19.Rd2 Rdd2-+) 0-1. AM_Veriitas (1815) - Lance5500 (2505), lichess.org, 2016. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

5.cd5 ed5 6.e3 ab5 7.Bb5 c6 8.Ba4 Bf5 9.0-0 Bd6 10.Bb2 Nbd7 11.Nc3 0-0 12.Bc2 Bc2 13.Qc2 Ne5 14.Ne5 Be5 15.f4 Bd6 16.Ne2 Ba3 17.Bd4 c5 18.Be5 (worse is 18.Bc5 Qc7 19.Rfc1 Rfc8–/+) 18...Ng4 19.Bc3 Re8 20.h3 Nf6 21.Rab1 d4! 22.Nd4 (22.ed4 Re2 Pinning (22...Re2 Deflection)) 22...cd4 23.Bd4 Qd5 24.Rb6 (24.Bf6 gf6 25.Rfd1 Bd6–/+) 24...Rec8 (24...Nd7!? 25.Rb3 Bc5–+) 25.Qb3–/+ Bc5 26.Bf6 (26.Bc5 Qc5 27.Rb7 Rc7–/+) 26...Qb3 (better is 26...Qd2!? 27.Rb7 Qe3 28.Kh2 Qb3 29.ab3 gf6–+) 27.Rb3+= (27.ab3?? Bb6 28.Be7 Ra2–+) 27...gf6 28.Rb7 Ra2 29.Rd7 Bb4 30.Rb1 Bd2–+ 31.Kf2 Re8 32.Rbb7 Be3 33.Kg3 Bf2 34.Kg4 Bc5 35.Rf7 Rg2 36.Kf3 Rf2 37.Kg4 Rg2 38.Kf3 Rf2 39.Kg4= Rg2 ½–½. Vasilev,Sergey – Csiba,Tibor, First Sarurday FM–B June, 2013. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

5.e3 ab5 6.cb5 Bd6 7.Bb2 0-0 8.Bd3 (8.Be2 c5=+) 8...Nbd7–/+ 9.g4? (better 9.0-0!?–/+) 9...Ng4–+ 10.Rg1 f5 11.h4? (11.Bc2–+) 11...e5 12.Bf5 (12.Be2 e4 13.Ng5 Nc5–+) 12...Rf5 13.Rg4 Nc5 14.Ke2 (14.d4 Rf3! 15.Qf3 Nd3 16.Ke2–+) 14...Qd7 15.Qg1 (15.Na3 Rf3 16.Rg2 Rf7–+) 15...Qb5 16.Kd1 Qb2 17.Rg7 Kf8 18.Rh7 (18.Rg8 Ke7 19.Qg7 Rf7 20.Qg5 Kd7 21.Ke2 Qa1 22.Nc3–+) 18...e4 (18...Rf3?! 19.Qg7 Ke8 20.Qg6 Kd8 21.Qg5 Ke8 22.Qg6 Kd8 23.Qg5 Ke8 24.Qg6=) 19.Nd4 Be5 (19...Qa1?! 20.Rh8 Ke7 21.Qg7 Rf7 22.Qg5 Rf6 23.Qg7 Rf7 24.Qg5 Rf6 25.Qg7 Rf7=) 20.Nf5 Bf5 21.Rh5 Bd7 22.Qg6 Qc2! 23.Kc2 (23.Kc2 Ba4 Mate attack) 23…Ba4 (23...Ba4 24.Kc1 Nd3) 0–1. yodamo – El Pel, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 d5)

5.e3 dc4 6.Bc4 ab5 7.Bb5 c6 8.Bc4 Bb4 (8...Bd6 9.d4=) 9.Bb2 b5 10.Bb3 (10.Be2 Bd6=) 10...c5 (10...Nbd7 11.0-0=) 11.a4 c4 (11...Bd7 12.Ne5=) 12.Bc2 Bd7 13.ab5 Ra1 14.Ba1 Bb5 15.Nc3 Bc3 (15...Bc6 16.Qe2=) 16.Bc3+= 0-0 (better 16...Nbd7+=) 17.g4 (17.Ng5!? g6 18.Qf3+–) 17...Nd5 (17...Bc6 18.Rg1=+) 18.Ba1 (18.Qb1 Nc3 19.dc3 Qa5 20.Bh7 Kh8=) 18...f6 (18...Nb4 19.Bc3 Nc2 20.Qc2–/+) 19.Rg1 (19.Qb1 Bc6 20.Bh7 Kh8 21.Nd4+=) 19...g5?? (19...Nb4!?=) 20.Nd4 (better 20.Bh7!? Kf7 21.h4 gh4 22.g5+–) 20...Bd7+= 21.h4 Nc6 (better 21...e5!? 22.Nf3 h6+=) 22.hg5 Nd4 23.Bd4 fg5? (better 23...e5 24.Bc5 Rf7+–) 24.Bh7! Kh7 Decoy to h7 (24...Kf7 25.Bg6! Kg8 26.Qc2+–) 25.Qc2 (25.Qb1!? Rf5 26.gf5 ef5+–) 25...Rf5 26.gf5 ef5 27.Qc4 Be6 28.Rh1 Kg6 29.Qc6 (29.Rh8 Qc7 30.Qa4 g4+–) 29...Qe7 (29...Qc8 30.Qc8 Bc8 31.d3+–) 30.Bc5 (30.Qa8 Nf4 31.Qh8 Ng2 32.Kf1 Nh4+–) 30...Qf7 (30...Qd7 31.Qa6+–) 31.Qd6 Nf6 (31...f4 32.e4 Nf6 33.d3+–) 32.Qh2 (better 32.Rh8 f4 33.Bd4 fe3 34.de3+–) 32...Ng8 (32...Qh7+–) 33.Qh5 Kf6 34.Qf7 (34.Qh8 Kg6 35.f4+–) 34...Bf7 35.d4 Bd5 36.Rg1 g4 37.Kd2 Nh6 (37...Kg6 38.Ra1+–) 38.Kc3 (38.Ra1!? Ng8+–) 38...Nf7 39.Kb4 Ng5 40.Bd6 Ke6 41.Bg3 Bf3 (41...Ne4 42.Ra1+–) 42.Ra1 Be4 (42...Ne4 43.Ra6 Kd7 44.Ra5 Ng3 45.fg3+–) 43.Kc5 Nf3 44.Ra6 (44.d5 Kf6+–) 44...Kd7 45.d5 Ng5 (45...Ke7 46.Ra7 Kd8 47.d6+–) 46.Ra7 Kd8 (46...Ke8 47.Bh4 Nf7 48.d6 Nd6 49.Kd6+–) 47.d6 (47.Bh4 Kc8 48.d6 Bb7 49.Bg5 g3 50.fg3 f4 51.Bf4 Kd7 52.Rb7 Ke6 53.d7 Ke7 54.e4 Ke6 55.d8R Kf6 56.Rd6) 47...Ne6 (47...Nf3 48.d7 Ke7 49.Bd6 Kd8 50.Kb5 Bd3 51.Kb4 Bc2 52.Bc5 Ba4 53.Bb6 Ke7 54.d8Q Ke6 55.Qe7 Kd5 56.Ra5 Bb5 57.Rb5 Kc6 58.Qc7) 48.Kc4 (better 48.Kb6 Ke8 49.Re7 Kd8+–) 48...Bf3 (48...Bc6+–) 49.Bh4 Kc8 50.d7 (50.Kb5 Bb7 51.Kb6 Kd7+–) 50...Kb8 51.Ra5 (51.Ra6 Kc7 52.Re6 Kd7+–) 51...Be4 (51...Kc7+–) 52.d8Q Nd8 53.Bd8 Kc8 54.Bg5 Kd7 55.Ra6 Kc7 56.Kc5 (56.Kc5 Kd7 57.Ra7 Ke8 58.Kd6+–) 1–0. yodamo – Rednose1312, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 d5)

5.e3 dc4 6.Bc4 ab5 7.Bb5 Bd7 8.Qb3 Nc6 9.Bb2 Bd6 10.Nc3 0-0 11.g4 (better 11.0-0!?=+) 11...Ng4–+ 12.Rg1 (12.h3 Nge5 13.Ne5 Ne5–+) 12...Nh2 13.Nh2 Bh2 14.Rg2 Be5 15.Ne4 Bb2 (15...Qh4!? 16.Nc5 Rfd8 17.Nd7 Rd7 18.d4–+) 16.Qb2 f6 17.Nc5 (17.Qc3–/+) 17...Qc8 (better 17...Bc8!? 18.Bc6 bc6–+) 18.Ke2 Ra5 (18...Qe8 19.Rag1 g6 20.a4–/+) 19.a4=+ Be8 (19...g6 20.Qc3=+) 20.Rag1 (20.Qc3!?=) 20...g6=+ 21.Qc3 b6 22.Ne4 Ne5 23.Nd6?? (better 23.f4 f5 24.Ng5 Bb5 25.ab5+=) 23…cd6–+ (23...cd6 24.Qb3 Bb5 25.ab5 Qd7–+) 0–1. yodamo – rob7max1, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 d5)

5.e3 dc4 6.Bc4 Be7 7.Bb2 0-0 8.a4 b6 9.0-0 ½–½. Dudko,Gennady – Utyupin,Vladimir (2120), Omsk–ch op, 2009. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

5.e3 c6 6.bc6 Nc6 7.Bb2 (7.d4 dc4 8.Bc4 b5=+) 7...Bd6 (7...dc4 8.Bc4 b5 9.Be2=+) 8.Nc3 (8.cd5 ed5 9.Be2 0-0=+) 8...0-0 (8...dc4 9.Bc4 0-0 10.Rc1=+) 9.cd5 ed5 10.Be2 b5 (10...Bf5 11.0-0=+) 11.Rc1 Bb7 12.0-0 Re8 13.d4 Na5 14.a4 b4 15.Nb1 Qb6 (15...Nc4 16.Bc4 dc4 17.Rc4=+) 16.Nbd2 Rac8 17.Ne5 Bf8 (17...Rc1 18.Qc1 Ne4 19.Ne4 de4 20.Nd7=) 18.Nb3 (18.Rc8 Rc8 19.Qb1 Bd6=) 18...Rc1=+ 19.Bc1 (19.Nc1 Nc4 20.Nc4 dc4 21.Bc4 Qc6=) 19...Nc4 20.Nd3 (20.Qc2 Rc8 21.Qb1 Qe6=+) 20...Ne4–/+ 21.Bf3 (21.Bb2 Qh6–/+) 21...Nc3 22.Qc2 Na4 23.Bd2 Qb5 24.Ra1? (better 24.Be2!?–/+) 24…Na3–+ (24...Na3 25.Ra3 ba3–+; 24...Nd2?! 25.Qd2 Bd6 26.Ndc5 Nc5 27.dc5–/+) 0–1. Mrozinski,Werner – Kasperek,Ryszard (2335), Ruhrgebiet VK3, 1996. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 d5)

5.e3 Ne4 6.Bb2 Bc5 (6...dc4!? 7.Bc4 Nd6=+) 7.Bg7 Rg8 8.Bd4 Bb4 (8...Bd4 9.Nd4 e5 10.Nf3+=) 9.Ne5 (9.Qa4 c5 10.cd5 ed5+–) 9...ab5 (9...Nd7 10.Nd3 Bd6 11.cd5 ed5 12.Qb3+=) 10.cb5 (better 10.Qh5!? Rf8 11.a3+–) 10...c5= 11.bc6 bc6? (11...bc6 12.Qh5 Decoy; 11...Nc6 12.Bb5 Pinning (12.Bb5 Decoy)) 12.Nc3 (better 12.Qh5 Rg7 13.f3+–) 12...Qd6?? (better 12...Bc3 13.Bc3 Nc3 14.dc3 Nd7 15.Nd7 Bd7+=) 13.Ne4 Qc7 (13...de4 14.a3! Ba5 15.Nf7 Bd2 16.Kd2 Kf7 17.Qh5 Kf8 18.Qh6 (18.Qh7?! Nd7+–) 18...Ke8 19.Qh7+–) 14.Rc1 (better 14.Nf6 Kd8 15.Ng8 c5+–) 14...Nd7?? (14...de4 15.Qc2 Bd6+–) 15.Rc6 Qa5 (15...Qb8 16.Qh5 Rg6 17.Ng6 hg6 18.Qh8 Ke7+–) 16.Nf7! de4 (16...Kf7 17.Qh5 Double attack (17.Qh5 Deflection)) 17.Rc8 (better 17.Bc4 Kf7 18.Be6 Kf8 19.Bg8 Kg8 20.Qg4 Kf8 21.Qg7 Ke8 22.Re6 Kd8 23.0-0+–) 17...Rc8–+ 18.Nd6 (18.Be2 Kf7 19.0-0 Bd2–+) 18...Bd6 19.Qh5 (19.Bc3 Bb4 20.Bb4 Qb4 21.g3–+) 19…Qh5 (19...Qh5 20.Bb2 Rc2–+) 0–1. yodamo – Red Pilot, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6 4.c4 d5)

5.e3 Be7 6.Bb2 0-0 7.Nc3 dc4 8.Bc4 ab5 9.Nb5 c6 10.Nbd4 Nbd7 11.0-0 Nb6 12.Bb3 Nfd5 13.Ne5 Nd7 14.Ndf3 Nc5 15.Bc2 Nb4 16.Bb1 f6 17.a3 Nd5 18.Bh7 Kh7 19.Ng5 fg5 20.Qh5 Kg8 21.Ng6 Bf6 22.Bf6 Nf6 23.Qh8 Kf7 24.Ne5 Ke8 25.Qg7 Qe7 26.Qg6 Kd8 27.Qg5 Rg8 28.Qf4 Nd5 29.Qc4 Ra4 30.Qc2 Qg7 31.g3 Qe5 32.Qc5 Rag4 33.d4 Qc7 0–1. Straeter – Bojkovic, 1998.

5.Bb5 b6 6.0-0 c6 7.Be2 d5 (7...Ba6 8.d3 d5 9.Bb2 Bd6 10.Nbd2 Nbd7) 8.Bb2 Bd6 9.Be5 0-0 10.d4 Ba6.

5.Bb5 b6 6.Bb2 Bb7 A) 7.Qe2 Bc5 (7...Ra5 8.Nc3 Ba3 9.Ba3 Ra3 10.0-0 0-0) 8.0-0 0-0 9.d4 Be7 10.Nbd2 Bc6; B) 7.Nc3 Ba3 (7...Bc5 8.0-0 0-0 9.Qe2 Qe7 10.Rfb1 c6) 8.Rb1 0-0 9.0-0 Bb4 10.a4 Bc3; C) 7.0-0 Be7 (7...Nc6 8.d3 Nb4 9.e4 Ra2 10.Ra2 Na2; 7...Bd6 8.d3 0-0 9.c4 Qe7 10.e4 Bf4; 7...Bb4 8.Nc3 0-0 9.Qe2 Qe7 10.Rfb1 e5) 8.Nc3 0-0 9.Qe2 Na6 10.e4 c6.

5.Bb5 b6 6.Bb2 c6 7.Be2 d5 8.0-0 Ba6 9.d3 Bd6 10.c4 0-0.

5.Bb5 b6 6.Bb2 Be7 7.0-0 (7.Nc3 0-0 (7...c6 8.Be2 d5 9.0-0 0-0 10.a4 Ba6) 8.0-0 Ba6 9.a4 c6 10.Ba6 Na6; 7.Bf6 Bf6 8.d4 0-0 9.0-0 Bb7 10.Nbd2 c6) 7...Ba6 (7...0-0 8.Bf6 Bf6 9.d4 Bb7 10.Nbd2 c5) 8.Ba6 (8.c4 0-0 9.Qc2 Bb7 10.Ng5 Re8) 8...Na6 9.Ne5 (9.c4 0-0 10.Bf6 Bf6) 9...d6 (9...0-0 10.Nc3=+ (10.d3 Nc5) 10...c6) 10.Nc6= Qd7 11.Ne7 Qe7 12.d3 (cont. unknown). Grant – Morrison, New York, 1965.

5.Bb5 b6 6.d4 A) 6...Be7 A1) 7.Nbd2 Ba6 (7...0-0 8.0-0 Ba6 9.Ba6 Na6 10.e4 d5) 8.c4 0-0 9.0-0 Bb5 10.cb5 d5; A2) 7.Bd3 Bb7 (7...0-0 8.0-0 Bb7 9.Qe2 Na6 10.c3 Ne4; 7...d5 8.0-0 0-0 9.Ne5 Ba6 10.c4 dc4; 7...Nc6 8.0-0 0-0 9.e4 Nb4 10.e5 Nfd5) 8.0-0 Na6 9.c3 0-0 10.Nbd2 d5; A3) 7.0-0 0-0 (7...Bb7 8.Nbd2 0-0 9.Bb2 Ba6 10.c4 d5) 8.Nbd2 Ba6 9.Ba6 Na6 10.e4 d5; B) 6...c6 7.Be2 (7.Bd3 d5 8.0-0 Ba6 9.Ne5 Bd6 10.f4 0-0) 7...d5 8.Nbd2 Bb4 9.c4 dc4 10.Bc4 Ba6; C) 6...Ba6 7.c4 Bb5 8.cb5 c6 9.Nbd2 d5 10.0-0 cb5.

5.Bb5 c6 6.Be2 b5 7.Bb2 Be7 8.0-0 0-0 9.d4 d5 10.Ne5 Ne4 11.Bd3 f6 12.Nf3 Nd6 13.Nbd2 Nd7 14.e4 Nb6 15.c3 Na4 16.Qc2 Nc4 (16...Nb2 17.Qb2 Nc4 18.Qb3=+) 17.Bc1= f5 18.ef5 ef5 19.Re1 Qc7 20.Nb3 (20.Nf1 Ra7=) 20...Bd6=+ 21.h3 Bd7 22.Nh4 Rae8–/+ 23.Bg5 Na3 24.Qd2 f4 25.Nf3? h6–+ 26.Bh4 g5 27.Bg5 hg5 28.Ng5 Qd8 29.h4 Qf6 30.Re8 Re8 31.Re1 Re1 32.Qe1 Qh6 33.g3 Nc4 34.Bf1 fg3 35.fg3 Qg6 36.Nc1 Qe8 37.Qf2 Qe3 38.Bc4 Qf2 39.Kf2 bc4 40.Ne2 Bg4 41.Nf3 Kg7 42.Ke3 Kf6 43.Nfg1 0–1. Przedmojski,Rafal – Nijboer,Friso, It (open) Koszalin (Poland), 1998.

5.Bb5 c6 6.Be2 b5 7.Bb2 Be7 8.c4 bc4 9.Bc4 d5 10.Bb3 Nbd7 11.d4 (11.0-0 0-0=) 11...Ba6=+ 12.Nbd2 c5 13.dc5 Nc5 14.Bc2 Qa5 15.Nd4 Rc8 16.f3 (16.N4b3 Nb3 17.ab3 Qb5=+) 16...0-0 17.Kf2 Nd3 18.Bd3 Bd3 19.N2b3 (19.a4 Rfe8–/+) 19...Qa6 20.Ne2?? (better is 20.Qd2–/+) 20...Be2–+ (20...Be2 21.Qe2 Qe2 22.Ke2 Rc2 23.Nd2 Rb2–+) 0–1. pumpkin (2425) – rhendricks (2590), net–chess.com, 2004.

5.Bb5 c6 6.Be2 Be7 7.0-0 0-0 (7...d5 8.Bb2=) 8.d3 d5 9.Bb2 b5 (9...Nbd7 10.Nbd2=) 10.c4= bc4 11.dc4 Nbd7 12.a4 (12.Nbd2 Qc7=) 12...Ba6 13.Nbd2 (13.Qc2 Qa5=) 13...Qc7 14.cd5 (14.Qc2 Rfb8=) 14...Be2 (14...cd5 15.Bb5=+) 15.Qe2= ed5 16.Rfb1 (16.Rfc1 Rfb8 17.Bc3 Bd6=) 16...Rfb8 17.Qd3 c5 (17...Bd6 18.Qc2=) 18.Bc3 White plans a5 18...c4 19.Rb8 Qb8 (19...Nb8 20.Qc2=) 20.Qf5 g6 (20...Ra6 21.e4 g6 22.Qh3=) 21.Qc2 (21.Qg5 Qd8 22.Qh6 Nh5=) 21...Nc5 The isolani on a4 becomes a target 22.a5 (22.Bd4 Nd3=) 22...Bd8 (22...Nd3 23.h3=) 23.Qd1 (23.Bd4 Nd3=) 23...Qb5 The pressure on the isolated pawn grows (23...Ra6=) 24.Ne5 (24.Nd4!? Qa6 25.Ra2=) 24...Nce4=+ 25.Ne4 Ne4 26.Bd4 Ra5 (26...Ba5 27.f3 Nc5 28.Ng4=+) 27.Rb1= Qe8 28.Rb8 Rb5 (28...Ra6 29.Qc2 Re6 30.Ng4=) 29.Ra8 f6 (29...Kf8 30.Rc8 Rb7 31.Nc6+–) 30.Ng4 (30.Nc4!? dc4 31.Bf6+–) 30...Ra5= 31.Rb8 (31.Ra5 Ba5 32.Bf6 Qb5=) 31...Rb5 ½–½. Sternik,Ryszard (1795) – Ropokis,Dimitrios (1735), FICGS, 2010. (=1.Nf3 Nf6 2.b4 e6 3.b5 a6)

5.Bb5 Be7 6.0-0 0-0 7.Bb2 b6 8.Nc3 d6 9.Ng5 h6 10.f4? (better is 10.Nge4=) 10...hg5 11.fg5 Nh7 12.h4 Ba6 13.Ba6 Na6 14.Ne4 (14.Qg4 d5–+) 14...Nc5 (14...d5 15.Ng3–+) 15.Qg4 Ne4 16.Qe4 Qd7 17.Rf7 Rf7 18.Qa8 Rf8 19.Qe4 Rf5 20.c4 Nf8 21.g4 Ra5 22.Rf1 d5 23.Qf3 Qe8 24.e4 Ra2 25.Qc3 d4! 26.Qc1? c5 27.d3 Qb8 28.Kg2 Ng6 29.Qb1 Nh4 30.Kh3 Ra8 31.Bc1 Ng6 32.Qb5 Qc7 33.Rf2 Bd6 0–1. Marton,J (2150) – Dankhazi,A (2045), XXIX Open A, Zalakaros HUN, 2010.

4.c4 a6 5.Bb2 ab5 6.cb5 d5 7.e3 Bd7 8.a4 c4 9.Nc3 Bb4 10.g4 (10.Be2 0-0+=) 10...0-0 11.g5 Nh5 12.h4 f6 (12...g6 13.Be2 Be8 14.Nd4=) 13.Nd4+– g6 14.f4 (14.Be2 Ng7 (worse 14...fg5 15.Bh5 gh5 16.Qh5+–) 15.h5 fg5 16.hg6 hg6+–) 14...f5 (14...Bc5!? 15.Nf3 Be8=+) 15.Be2 (15.Bg2 Re8+–) 15...Qe8 (15...Ng3 16.Rh3 Ne2 17.Nce2+=) 16.Nf3 (16.Bh5 gh5 17.Rg1 Qg6+–) 16...Bd6 (16...Bc8 17.Ba3 Ba3 18.Ra3=) 17.Nd4 Qf7 (17...Bb4!?=) 18.Bh5 gh5 19.Rg1 (19.Ba3 Ba3 20.Ra3 Be8+=) 19...Qg6 (19...Be8 20.a5=) 20.Nce2 (20.Ba3!? Ba3 21.Ra3+–) 20...Be8+= 21.Ng3 Exerts pressure on the isolated pawn (21.Ba3!? Ba3 22.Ra3+=) 21...Nd7=+ 22.Ne6? (better 22.Ba3 Nc5 23.Bc5 Bc5 24.Rf1=+) 22...Qe6–+ 23.Nh5 Bh5 (better 23...Qg6 24.Qf3 Bf7–+ (24...Qh5?! 25.Qd5 Rf7 26.Qd6=)) 24.Qh5=+ Qg6 25.Qf3 Qe6 26.g6 (better 26.Qh5 Bb4 27.Bd4=+) 26...hg6?? (better 26...Nf6–/+) 27.Qh5+– Kf7 28.Qh7 Ke8 29.Rg6 Qe7 (better 29...Qe4 30.Qh5 Kd8 31.Rd6 Qh1 32.Ke2 Qg2 33.Kd1 Kc7 34.Rd7 Kd7 35.Qh7 Ke6+–) 30.Qh5?? (better 30.Qh6 Bf4 31.Qf4+–) 30...Kd8=+ 31.Rg7 (31.Qf3 Bb4 32.Ke2=+) 31...Nf6?? (better 31...Qe4–+) 32.Qg6 (better 32.Re7 Nh5 33.Rb7=) 32...Qe4?? (better 32...Qe6 33.Rb7 Bf4=+) 33.Bf6+– Kc8 34.Bc3 Bf4 (34...Qh1 35.Ke2 Qh2 36.Kd1 Qh1 37.Kc2 Qe4 38.Kb2+–) 35.Rg8 (better 35.0-0-0 Bc7 36.Rh7+–) 35...Bd6 36.Rf8 (36.Qd6?! Rg8 37.0-0-0 Rd8 (37...Ra4 38.b6 Qb1 39.Kb1 Rg7 40.Bf6 Rb4 41.Kc1 Rb1 42.Kb1 Re7 43.Qe7 d4 44.Qc7) 38.Qc5 Kd7+=) 36...Bf8 37.b6?? (better 37.h5 Kc7 38.Ke2 Qg4 39.Qg4 fg4 40.a5+–) 37...Qh4= 38.Kd1 Qg4 39.Qg4 fg4 40.Ke2 Bd6 41.d3 (41.a5!?=) 41...Kd7–/+ 42.a5 cd3 (42...g3 43.dc4 dc4 44.Rf1–/+) 43.Kd3=+ g3 44.Rg1 Rf8 (44...Rc8 45.Rg2=+) 45.Be1= Rf3 46.Ke2 Re3 47.Ke3 Bc5 48.Kf3 Bg1 49.Kg3 Kc6 50.Kf4 Bh2 51.Kf5 Kd7 52.Bd2 Bg3 53.Bf4 Bf4 54.Kf4 Kc6 55.Ke5 Kb5 56.Kd5 Ka5 57.Kc5 Ka6 58.Kc4 Kb6 59.Kb4 Kc6 60.Ka5?? (better 60.Kc4 b6 61.Kb4=) 60...Kc5 61.Ka4 b6 (61...Kc4 62.Ka3 b5 63.Kb2 Kb4 64.Ka2 Kc3 65.Kb1 Kb3 66.Kc1 b4 67.Kd2 Ka2 68.Kd1 b3 69.Ke2 Ka3 70.Kf2 b2 71.Kg3 Ka2 72.Kf2 Kb3 73.Kf3 b1Q 74.Kf4 Qc1 75.Kf5 Kb2 76.Ke5 Qf1 77.Kd4 Qf4 78.Kc5 Qf3 79.Kd4 Kb1 80.Kc5 Qf6 81.Kd5 Qg5 82.Ke4 Kc1 83.Kd3 Qg4 84.Kc3 Qe4 85.Kb3 Qd4 86.Ka3 Kc2 87.Ka2 Qa4) 62.Kb3 Kb5 63.Kc3 (63.Ka2 Kb4 64.Kb1 Ka3 65.Kc1 b5 66.Kd1 Ka2 67.Kd2 b4 68.Kd1 b3 69.Ke2 Ka3 70.Kf2 b2 71.Kg3 Kb3 72.Kh4 b1Q 73.Kg5 Kc4 74.Kf6 Qc2 75.Kg7 Qd2 76.Kf6 Qf4 77.Kg6 Kb5 78.Kg7 Qg5 79.Kf7 Qe5 80.Kg6 Qc5 81.Kf6 Qc6 82.Kf5 Qd5 83.Kf6 Qd4 84.Kg6 Qg4 85.Kf6 Qh3 86.Kg5 Qe3 87.Kf6 Qe4 88.Kf7 Qf5 89.Kg7 Qe6 90.Kh8 Kc6 91.Kg7 Kd7 92.Kf8 Kd6 93.Kg7 Ke7 94.Kh7 Kf7 95.Kh8 Qh3) 63...Ka4 64.Kd4 (64.Kb2 Kb4 65.Kc2 Ka3 66.Kd2 b5 67.Kd1 Ka2 68.Kd2 b4 69.Kd3 b3 70.Ke3 Ka1 71.Kf2 b2 72.Kf1 b1Q 73.Kg2 Qb7 74.Kh2 Kb2 75.Kg1 Qd7 76.Kg2 Qg4 77.Kf2 Kc1 78.Kf1 Kd1 79.Kf2 Kd2 80.Kf1 Ke3 81.Ke1 Qe2) 64...Kb3 (64...b5 65.Kc3 Ka3 66.Kc2 b4 67.Kb1 Kb3 68.Ka1 Kc2 69.Ka2 b3 70.Ka3 Kc3 71.Ka4 b2 72.Kb5 b1Q 73.Kc6 Qg6 74.Kc7 Qg3 75.Kc6 Kc4 76.Kb6 Qd6 77.Kb7 Kc5 78.Kc8 Qe7 79.Kb8 Kc6 80.Kc8 Qc7) 65.Ke5 (65.Ke3 Kc3 66.Kf2 b5 67.Ke1 Kc2 68.Kf1 b4 69.Kf2 Kd3 70.Kg3 b3 71.Kf3 b2 72.Kf4 b1Q 73.Kg4 Ke4 74.Kg5 Qb6 75.Kg4 Qg6 76.Kh4 Kf4 77.Kh3 Qg3) 65…b5 (65...b5 66.Kd5 b4 67.Kc6 Kc4 68.Kd6 b3 69.Kd7 b2 70.Ke7 b1Q 71.Ke6 Qe4 72.Kf6 Qg4 73.Ke5 Qe2 74.Kf5 Qf3 75.Kg6 Qf8 76.Kh5 Qg7 77.Kh4 Kd4 78.Kh5 Ke4 79.Kh4 Kf4 80.Kh5 Qg5) 0–1. yodamo – redi, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 e6 3.b5 c5)

4.e3 a6 5.Bb2 Be7 (5...d5 6.ba6 ba6 7.Be2=+) 6.a4 (6.Be2 ab5 7.Bb5 0-0=) 6...ab5 (6...0-0 7.Be2=) 7.Bb5 0-0 8.d4 (8.0-0 d5=) 8...b6 (8...cd4 9.ed4 d5 10.Ba3=) 9.0-0 Bb7 10.Nbd2 (10.dc5 Bc5 11.Nbd2 d6=) 10...cd4 11.ed4 (11.Nd4 Nc6=) 11...Nc6 (11...Qc7 12.c4=) 12.Re1 d6 (12...Qc7 13.c4=) 13.Nf1 (13.Rb1 Qc7=) 13...Na5 14.Bd3 (14.Ne3 Qc7=) 14...Rc8 (14...Qc7 15.Ne3=) 15.Qe2 (15.Ne3 Nd5=) 15...Nd5=+ 16.Qd2 (16.Bb5!?=+) 16...Nc4–/+ 17.Bc4 Rc4 18.Ne3 Ne3 19.Re3 (19.fe3 Qa8–/+) 19...Qc7 20.Rc3 (20.Qd3 Ra8–/+) 20...Bf3–+ 21.gf3 (21.Rf3 Rc2 22.Rc3 Rd2 23.Rc7 Bd8–+ (23...Rb2?! 24.Re7 Rc8 25.h4–+)) 21...Rc8 (21...d5 22.Rc4 Qc4 23.f4–+) 22.Raa3 (22.Rc4 Qc4 23.d5 e5–/+) 22...d5–+ 23.Rab3 (23.Rc4 dc4 (worse 23...Qc4 24.Rc3 Qa6 25.Qd3–+) 24.Re3 Bg5–+) 23...Bd6 24.h3 Bf4 (24...Ra8 25.Rc4 dc4 26.Rb5–+) 25.Qd3 h5 (25...Ra8 26.Rc4 dc4 27.Qe4–+) 26.Kg2 h4 27.Ra3 (27.Kg1 Qc6–+) 27...Qe7 (27...Bd6!? 28.Rab3–+) 28.Rc4–/+ Rc4 29.a5 ba5 (29...Bd6 30.Ra2–/+) 30.Ra5 Qg5 31.Kf1 Rc8 32.Ba3 (32.Rc5 Rd8–/+) 32...Bc1 (32...Rb8 33.Rb5–+) 33.Bb4 (33.Bd6 Qh6–/+) 33...Qf4 34.Kg2 Rb8 35.c3 Qd2 (35...Qg5 36.Kh1–/+) 36.Qd2 Bd2 37.Rc5 (37.Kf1 Rc8 38.Rc5 Re8–/+) 37...g5 38.Kf1 Kg7 (38...Bf4 39.Ra5–/+) 39.Ke2 Bf4 40.Ra5 Rb7 (40...Rc8 41.Kd3–/+) 41.Ra6 (41.Kd3 Kg6–/+) 41...Kg6 42.Kd3 Kf5 (42...Rb5 43.Ra4–/+) 43.Ra4 Rb6 44.Ra7 (44.c4 dc4 45.Kc4 Rc6 46.Bc5 Rc7–/+) 44...f6 45.Ra5 (45.Ra4 Rc6–/+) 45...Rc6 (45...Bh2 46.Ba3–/+) 46.Ke2 (46.Bc5 Bc7 47.Ra7 Bd6 48.Bd6 Rd6–+) 46...Kg6 (46...Bh2 47.Bc5–/+) 47.Kd3 f5 (47...Rc7 48.Ra6 Kf5 49.Bc5–/+) 48.Be7 (48.Bc5 Rc7=+) 48...Rb6 49.Kc2 Bd6 (49...Rb7 50.Bc5–/+) 50.Bd6=+ Rd6 51.Ra8 Rd7 52.Re8 Kf6 53.Rg8 (53.Rh8 f4–/+) 53...Rg7 (53...Ra7 54.Kb2–/+) 54.Rf8 Ke7 55.Rh8 Kf6 (55...f4 56.Kd3–/+) 56.Rh6 (better 56.f4!?=) 56...Rg6=+ 57.Rh7 (57.Rh8 Kg7 58.Rh5 f4=+) 57...e5 (57...f4 58.Rh8–/+) 58.Kd2 (58.Kd3 Ke6=) 58...ed4=+ 59.cd4 Rg7 (59...f4 60.Kc3=) 60.Rh6 ½–½. Olcum,Ahmet – Valansi,Avram Alber, Izmir TUR, 2011. (=1.Nf3 Nf6 2.b4 e6 3.b5 c5)

4.e3 d5 5.Be2=.

4.a4 Qa5 5.Bb2 cb5 6.e3 b4 7.c4 Be7 8.Be2 0-0 9.0-0 d5 10.d4 Qc7 11.Nbd2 a6 12.cd5 Nd5 13.Rc1 Nc3 (better is 13...Nc6!?=+) 14.Bc3+= bc3 15.Ne4 Bb4 16.Qb3 a5 17.Nc3 Bc3 18.Rc3 Qe7 19.Rfc1 Na6 20.Ba6 ba6 21.Rc7 Qb4 22.Qc2 Bb7? (22...g6+–) 23.Rb1 (23.Rb1 Bf3 24.Rb4 (24.gf3?! Qd6+/–) 24...ab4 25.gf3+–) 1–0. pumpkin (2275) – jboger (2305), net–chess.com, 2011.

4.a4 a6 5.Ba3 Ba3 6.Na3 0-0 7.e3= d5 8.c4 Nbd7 9.Qc2 Qe7 10.bc6= bc6 11.Be2 e5 12.cd5 cd5 13.Qc7 Rb8=+ 14.0-0 Bb7 15.Rfb1? Rfc8–+ 16.Rb7 Rc7 17.Rc7 Qd6 18.Rc3 Ne4 19.Rc2 Nec5 20.d4 Nb3 21.Raa2 e4 22.Ne5 Ne5 23.de5 Qb6 24.Rc3? d4 25.ed4 Nd4 26.Bf1 g6 27.Nc4?? Qb4 28.Rc1–/+ Rc8 29.a5 Nb3?? 30.Rb2= Rb8 31.Rcb1 Qc3 32.Nd2?? Nd2–/+ 33.Rb8 Kg7 34.Rd1 Nf1 35.Rf1–/+ Qa5 36.e6 Qe5 37.Rb6 fe6 38.Ra6 e3 39.fe3 Qe3–/+ 40.Rf2 Qe1 ½–½. Gravett,A (1975) – Goris,T (2105), 31st Guernsey Open, Cobo Bay GCI, 2005.

4.a4 a6 5.Bb2 ab5 6.ab5 Ra1 7.Ba1 cb5 8.e3 b4 9.d4 Nc6 10.Bb5 b3 (10...Qa5!? 11.Bc6 bc6–/+ (< 11...Qa1 12.Bb5=+)) 11.Bc6 (11.cb3? Qa5 12.Nc3 Ne4–+) 11...bc2 12.Qc2 dc6 13.0-0 Be7 14.Nbd2 0-0 15.Rd1 Bd7 16.h3 Qa5 17.Qb2 b5 18.Ne5 Ra8 19.d5 (better is 19.Qc2–/+) 19...ed5?? (better is 19...Qa4 20.Nb3 Ba3–+) 20.Nd7+/– Ne8 21.Nb3 Qb4 22.Ne5 Bf6 23.f4?? c5 24.Qc2 c4 25.Nd4 Nd6 26.Nd7 Bd8 27.Nc6 Qa3 28.Nd8 Qe3= 29.Kh1 Rd8–/+ 30.Ne5 Ne4 31.Rb1 Ng3 32.Kh2 Qf4 33.Kg1 d4 34.Qf2?? Qe5 35.Re1 Qd6 36.Bb2 c3 37.Bc1 b4 38.Bf4 Qf6 (38...Qf6 39.Qg3 d3 40.Qd3 g5–+ (40...Rd3?? 41.Re8)) 0–1. deross – murzyn1500 (1645), kurnik, 2011.

4.a4 a6 5.bc6 Nc6 6.Bb2 d5 7.e3 Be7 8.c4 0-0 9.d4 Na5 10.cd5 ed5 11.Ne5 Ne4 12.Bd3 Bb4 13.Kf1 Qh4 14.Qc2 Nb3 15.Be4 Na1 16.Bh7 Qh7 17.Qh7 Kh7 18.Ba1 Bf5 19.Ke2 Rac8 20.g4 (20.Rd1 Rc2 21.Kf3 Rfc8–+) 20...Rc2 21.Kd1 Rfc8 (21...Rfc8 22.Bc3 Bc3 (22...R8c3?! 23.Nc3 Bc3 24.gf5 Rd2 25.Kc1–/+) 23.gf5 Bb2–+) 0–1. Bailey,Greg – Inumerable,Florentino, Chicago op, 1996. (=1.Nf3 Nf6 2.b4 e6 3.b5 c6)

4.a4 a6 5.e3 ab5–/+ 6.Bb2 (6.c3 d5–/+) 6...ba4 (6...Ra4 7.Nc3 Ra1 8.Qa1–+) 7.c4–/+ Qa5 8.Bc3 Bb4 9.Nd4 (9.Bd3 d6 10.Bc2 Qb6–/+) 9...Bc3 (9...d5!?–+) 10.Nc3–/+ a3 11.Qb3 0-0 12.Bd3 (12.Be2–/+) 12...Na6 (12...d6 13.Nc2 Qg5 14.0-0–/+) 13.Ra3 (13.Qa3 Qa3 14.Ra3 d5 15.cd5 ed5=+) 13...Qg5–/+ 14.Na4? (better 14.Qb1 d5 15.0-0 dc4 16.Bc4–/+) 14...Qg2–+ 15.Rf1 Qh2 16.Qb1? (16.Qb2 d6 17.Nb6 Rb8–+) 16...d5 (better 16...Nc5! 17.Bc2 d5–+) 17.Nb6 Rb8 18.Nf3 (better 18.Qb2–+) 18...Qh3?? (18...Qh5 19.Nd4–+) 19.Ng5? (better 19.Ke2!? Ne4 20.Be4 de4 21.Qe4–/+) 19...Qh6 (19...Qh4 20.Nf3 Qh5 21.Nd4–+) 20.Rg1–/+ dc4 (20...Nc5 21.Bc2–+) 21.Bc4 (21.Nc4 Nc5–/+) 21...Qh2 22.Nf3 Qh5 23.e4 (23.Ke2 Ng4–/+) 23...e5 (better 23...Ng4 24.d4 c5–/+) 24.Ng5?? (better 24.Qb2 Be6 25.Ne5–/+) 24...Bg4–+ 25.Nf7 Rf7 26.Rag3 (26.Bf7 Qf7 27.Qb2 Rd8–+) 26...Rbf8 27.Nd7 (27.f3 Bf3 28.Qb3 Bg4 (28...Ne4?! 29.Bf7 Rf7 30.Rg7 Kf8 31.Nd7 Ke7 32.Qf7 Qf7 33.Rf7 Kf7 34.Ne5 Kf6 35.Nf3=) 29.Rg4 Ng4–+) 27...Nd7 (better 27...Bd7!? 28.Rg7 Kh8 29.Rf7 Rf7 30.Bf7 Qf7 31.Qb7 Ne4 32.Qb6–+) 28.Rg4 Kh8 29.Bf7 Rf7 30.Qb7 Nf6 (better 30...Nac5 31.Qa8 Rf8–+) 31.Qc8+– Ng8 32.Qa6 Qh2 Attacking the backward pawn on f2 33.R4g2 Qf4 34.Qc6 Ne7 35.Qe6 (35.Qc4!?+–) 35...Qe4= 36.Kd1 Qf3 37.Kc1? (37.Ke1 Ng6 38.Qc8 Rf8=+) 37...Qa3 (37...Rf6 38.Qa2 Rc6 39.Kb2 Rb6 40.Ka1 Rb8–+) 38.Kd1= Qf3 39.Kc1 ½–½. yodamo – mantova, ChessWorld.net, 2010. (=1.Nf3 Nf6 2.b4 e6 3.b5 c6)

4.a4 Bc5 5.e3 0-0 6.Bb2 d5 7.Bd3 Bd6 8.g4 (better 8.0-0!?=) 8...Ng4–/+ 9.Rg1 f5 10.h3 Nf6 11.Ng5? (better 11.Be2!?–/+) 11...e5–+ 12.c4 (12.bc6 bc6 13.Be2–+) 12...h6 13.cd5 cd5 (13...hg5?! 14.dc6 bc6 15.Rg5–+) 14.Qb3 (14.Nf3 e4 15.Bc2 ef3 16.Qf3 Rf7–+) 14...Bc7 (better 14...hg5 15.Ba3 Be6 16.Bd6 Qd6–+) 15.Nf3 Qe7?? (better 15...e4 16.Nc3 ed3 (16...ef3?! 17.Nd5 Kh8 18.Nf6 gf6 19.Ba3–/+) 17.Nd5 Be6 (17...Nd5 18.Rg7 Kh8 19.Rd7 Nf6 20.Rd8 Bd8 21.Rc1+–) 18.Nf6 Rf6–+) 16.Nc3 (16.Nh4 e4 17.Ng6 Qe6 18.Nf8 Kf8=) 16...Be6 17.Bf5? (better 17.Ba3 Qd7 18.Bf8 Kf8 19.Nh4=) 17...Rd8?? (better 17...Bf5 18.Nd5 Qe6 19.Ne7 Kf7 20.Qe6 Ke6 21.Nf5 Kf5 22.Rg7 Nbd7–+) 18.Be6 (18.Qc2 Bf5 19.Qf5 Nbd7=) 18...Qe6 19.Rc1 (19.e4 Ba5=) 19...Nbd7= 20.Ne4 (20.Qc2!?=) 20...Rac8–/+ 21.Nc5 (21.Nf6!? Nf6 22.Ke2–/+) 21...Nc5 22.Rc5 Bd6 23.Rc8 Rc8 24.Nh4? (24.Ke2!?–/+) 24...Rc4 (better 24...Qh3 25.Ng6 Kh7–+) 25.Qd3?? (better 25.Ng6 d4 26.Ke2–+) 25...Rh4 26.Qg6 (26.f4 Ne4 27.Qf1–+) 26...Qd7 (better 26...Qf7 27.Qf7 Kf7–+) 27.Qf6= Attacking the backward pawn on g7 27...Rh3 (better 27...Ra4 28.Rg6 Bf8 29.Qe5 Rb4= (29...Qb5?? 30.Rg7 Kh8 31.Rb7 Kg8 32.Qe6)) 28.Be5?? (28.Rg7 Qg7 29.Qe6 Qf7 30.Qh3 Kh7+=) 28...Be5 (better 28...Rh1! 29.Qg6 Rg1 30.Qg1 Be5–+) 29.Qe5+= a5? (29...Kh8 30.Ke2+=) 30.Rg6?? (better 30.Rg7! Qg7 31.Qe6 Qf7 32.Qh3+–) 30...Rh1= 31.Ke2 Qf7? (better 31...Kh7 32.Qe6 Qe6 33.Re6 Ra1=) 32.Rg7!+– Qg7 33.Qd5 Qf7 34.Qh1 Qc4 35.d3 Qa2 (35...Qc2 36.Kf3 Qa4 37.Qh6 Qb5 38.Ke4+–) 36.Kf3 (better 36.Kf1!? Qa1 37.Kg2 Qa4+–) 36...Qd5+– 37.e4 Qd3 38.Kf4 Qd2 39.Ke5 Qg5 (39...Qf2 40.Kd6 (40.Qh6?! Qc5 41.Kf6 Qd6 42.Kg5 Qd2 43.Kg6 Qd6 44.Kh5 Qh2 45.Kg5 Qd2 46.Kg6 Qd6 47.Kg5 Qd2=) 40...Qd4 41.Kc7 Qa4 42.Qg2 Kh7 43.Qe2+–) 40.Kd4 (better 40.Ke6!? Qd8 41.Qh2 Qe8 42.Kd5+–) 40...Qd8 (40...Qd2 41.Kc5 Qf2 42.Kd6 Qd4 43.Kc7 Qa4 44.Qg2 Kh7 45.Qe2+–) 41.Kc5 (better 41.Ke3 Qb6 42.Ke2+–) 41...b6? (41...Qc7 42.Kd5 Qd7 43.Kc4 Qf7 44.Kc3 Qf2 45.Qh6 Qc5 46.Kd3 Qa3 47.Ke2 Qa4 48.Qe6 Kg7 49.Qe7 Kg6 50.Qd6 Kg5 51.Qe5 Kg4 52.Qf5 Kg3 53.Qf3 Kh4 54.Qf6 Kg4 55.Qg7 Kf4 56.Qc7 Ke4 57.Qb7 Kd4 58.Qa7 Kd5=) 42.Kc6+– Kh7?? (42...Qc8 43.Kb6 Qb8 44.Kc5 Qc7 45.Kd5 Qd7 46.Kc4 Qf7 47.Kd4 Qf2 48.Kd5 Qf7 49.Kc6 Qe6 50.Kb7 Qd7 51.Ka6 Qc8 52.Kb6 Qb8 53.Kc6 Qc8 54.Kd5 Qd7 55.Kc4 Qe6 56.Kc3 Qe5 57.Kd3 Qd6 58.Ke2 Qb4 59.Qg1 Kf8+–) 43.Qh2 (43.Qf3 Qe8 44.Kb6 Qb8 45.Ka5 Qa7 46.Kb4 Qe7 47.Kc4 Qc7 48.Kb3 Qd8+–) 43...Qe8 (43...Qf6 44.Kb7+–) 44.Kb6 Qe6 45.Ka5 Qe7 46.Qf4 (46.Qb8!? h5+–) 46...Qa7 47.Kb4 Qe7 (47...Qd4 48.Kb3 Qd3 49.Kb2 Qd4 50.Kc1 Qa4 51.Qf7 Kh8 52.Qf6 Kh7+–) 48.Kc4 Qf7 (48...Qa7 49.Kb3 h5 50.Qf5 Kg7 51.Qe5 Kf7 52.Qh5 Kg7 53.Qe5 Kf7 54.Qf5 Kg7+–) 49.Kd4 (49.Qf7 Kh8 50.b6 h5 51.b7 h4 52.b8Q) 49...Qf4–+ 50.b6 (50.Kd5 Qf2 51.a5 Qd2 52.Kc6 Qa5–+) 50...Qf2 51.Kd5 Qb6 (51...Qb6 52.a5 Qa5 53.Kd4 h5–+) 0–1. yodamo – Huwie35, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 c6)

4.a4 d5 5.Bb2 Be7 6.e3 b6 7.Bd3 c5 8.c4 Bb7 9.Rg1 (9.0-0 0-0=) 9...Nbd7 10.g4 White begins to deal mighty blows (10.cd5 Bd5 11.Nc3 Bb7=+) 10...0-0–/+ 11.g5 Ne8 (11...dc4 12.Bc4 Ne8 13.d3=+) 12.Ne5 (better 12.Qc2!? g6 13.cd5 ed5 14.Qc3=) 12...Ne5–/+ 13.Be5 Bg5 (better 13...dc4!? 14.Bc4 Bg5–/+) 14.Qh5= The mate threat is Qxh7 14...Bf6?? (14...h6 15.f4 dc4 16.fg5 cd3 17.Bg7 Ng7 18.gh6 f5 19.hg7 Rf6+–) 15.Qh7 1–0. yodamo – medley, ChessWorld.net, 2008. (=1.Nf3 Nf6 2.b4 e6 3.b5 c6)

4.c4 Qa5 5.e3 a6 (5...d5 6.bc6 Nc6 7.Bb2=) 6.a4 d5 7.Bb2 Be7 8.Be2 Qd8 (8...dc4 9.Bc4 Qb4 10.Qc2=) 9.0-0 dc4 10.Bc4 0-0 11.Qc2 ab5 12.ab5 Ra1 13.Ba1 cb5 14.Bb5 Qa5 15.Nc3 (15.Bf6 Bf6 16.Bd3 Qh5=) 15...Bd7= 16.Rb1 Nc6 17.Be2 (17.Qb2 Qb4=) 17...Rc8 (17...Ra8 18.d4=) 18.Qb3 h6 (18...Nd8 19.Nb5=) 19.Qb7+= Nb4 (19...Rb8 20.Qa6 Qa6 21.Ba6+/–) 20.Nb5 (20.d4 Rc7 21.Qb8 Rc8+/–) 20...Qa2 21.Rd1 Rd8 (21...Qd5 22.Qd5 Nbd5 23.Be5+/–) 22.Ne5 Bf8 (22...Qd5 23.Qd5 Nbd5 24.Nc3+/–) 23.Bc3 Qc2? (better is 23...Qd5 24.Qb6 Qa8+/–) 24.Nd4+– Qe4 25.Qe4 Ne4 26.Bb4 Bb4+/– 27.Nec6 Bc6= 28.Nc6 Rd2 ½–½. Sternik,Ryszard – Kupryjaniuk, Korsze, 1984.

4.c4 Bc5 5.Bb2 d6 6.e3 Bb4 (6...a6 7.Nc3 ab5 8.cb5=) 7.Nc3 Bc3 (7...Nbd7 8.Qc2+=) 8.Bc3+– e5 9.d4 (9.Be2 cb5 10.cb5 Bf5+=) 9...e4+= 10.Nd2 Bf5 (10...0-0 11.Rb1+=) 11.Be2+– 0-0 12.d5 (better 12.g4!? Bg6 13.Rb1+–) 12...cd5= 13.g4 Bg6 (13...Be6 14.cd5 Nd5 15.Bd4=) 14.g5 (14.h4 h6 15.Nf1 dc4=) 14...Ne8 (14...Nfd7 15.f4 Nc5=) 15.cd5 (better 15.h4!? Nd7 16.cd5=) 15...Qg5=+ 16.h4 Qd5 (better 16...Qg2!? 17.Rf1 h6=+) 17.h5+= Bf5 18.Rg1 (18.Bc4 Qc5 19.Bd4=) 18...Qe6=+ 19.h6 Qh6 20.Qa4 (20.Nc4!? Bg6 21.Qd5=) 20...Nd7–/+ 21.Ne4 Qh2 22.Kd2 Nc5 23.Qb4 0–1. yodamo – urigeller, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e6 3.b5 c6)

4.c4 Bc5 5.Nc3 0-0 6.e3 (6.d4 Bb4 7.Qb3 Ba5=) 6...a6 7.Bb2 ab5 8.cb5 d5 9.a4 Ng4 (9...Bd6 10.bc6 Nc6 11.Nb5=+) 10.h3 Nh6 11.d4 Bb4 12.Qb3 (12.Bd3 cb5 13.ab5 Ra1 14.Qa1 Qe7+=) 12...Ba5 (12...Qa5 13.Bd3=) 13.Ba3 Re8 14.Bb4 f6 (14...Nd7 15.Bd3=) 15.Bd3 (15.Ba5 Qa5 16.bc6 bc6=) 15...Bb4= 16.Qb4 Nd7 (16...e5 17.de5 fe5 18.Qb3=) 17.0-0 (17.bc6 bc6 18.Qb1 f5+=) 17...e5 18.bc6 bc6 19.Rfb1 (19.Bc2!?+=) 19...e4=+ 20.Ne4 de4 21.Bc4 Kh8–/+ 22.Qd6? ef3–+ 23.gf3 Ba6 24.Qc6 Bc4 25.Qc4 Nb6 26.Qb5 Rb8 27.a5 Nd5 28.Qb8 Qb8 29.Rb8 Rb8 30.a6? Nb4 31.a7? Ra8 32.Ra4 Nc6 33.d5 Ra7 (33...Ra7 34.Ra7 Na7–+) 0–1. gtate (1625) – thmiller (1985), net–chess.com, 2001.

4.c4 Bc5 5.d4 Be7=.

4.c4 d5 5.e3 Bb4 6.Bb2 0-0 7.Bc3 Bc3 8.Nc3 Nbd7 9.d4 dc4 10.bc6 bc6 11.Bc4 Qa5 12.Qc2 Nb6 13.Bb3 (13.Bd3 c5=) 13...Nbd5 (13...Bb7 14.Rc1=+) 14.Bd5 (14.Rc1!?+=) 14...Nd5= 15.Rc1 Nb4 16.Qd2 Ba6 17.Ne5? (better is 17.Kd1=+) 17...f6–+ 18.Nd7 (18.Nf3 Nd3 19.Kd1 Nc1 20.Kc1 Rab8–+) 18...Nd3 19.Kd1 Rfd8 20.Ne4 Qd2 21.Kd2 Nc1 22.Rc1 Rd7 23.Nc5 Rd6 24.Na6–/+ e5 25.Kd3 ed4 26.ed4 Rad8 27.Rc4 Kf7 28.h3 f5 29.Nc5 Rb8 30.Nb3 g5 31.Ra4 Rb7 32.Nc5 Re7 33.Kd2 h5 34.g3 Kg6 35.Rb4 Rd5 36.a4 f4 37.a5 f3 38.Nd3? Re2 39.Kc3 Ra5 40.Ne5 Rae5 41.de5 Rf2 42.Kd3 Ra2 43.Ke3 f2 44.Rb1 Kf5 45.Rc1 Ke5 46.Rc5 Kd6 47.Rf5 a5 48.Rf8 a4 49.Rd8 Kc5 50.Rd1 a3 51.Kf3 Rb2 52.Kg2 a2 (52...a2 53.Rf1 Rb1 54.Kf2 Rf1 55.Kf1 a1Q 56.Kg2 Qa2 57.Kg1 Qe6–+) 0–1. Wiczynski,Artur – Sadzikowski,Daniel, Poland–ch U10, 2003.

4.c4 d5 5.e3 dc4 6.Bc4 a6 7.ba6 Na6 8.Bb2 g6 9.0-0 Bg7 10.d4 Ra7 11.Re1 0-0 12.Nbd2 Nb4 13.Qb3 Nbd5 14.e4 b5 15.Bd3 Nb6 16.Ba3 Re8 17.Rac1 Bb7 18.e5 Qa8 19.Bc5 Bc8?? 20.ef6+– Bf6 21.Bb6 Ra2 22.Rc6 Qc6 23.Qa2 Qb6 24.Rb1 Ba6 25.Qb3 Rb8 26.Nc4 Qc6 27.Na5 Qd7 28.Qb4 Qd5 29.Rc1 Bg7 30.Rc5 Qd7 31.Nb3 Qe8 32.Nbd2 Qd7? 33.Nb1 Rb7 34.Rg5 Rb8 35.Na3 Qc6 36.Kf1?? f6? 37.Rc5+– Qb6 38.Bb5 Bb7? 39.Rc4?? Bf3 40.gf3 Bf8 41.Qb3 Rb7?? 42.Rc3 Ba3= 43.Qa3 Qb5=+ 44.Kg1 Qa4?? 45.Qa4 Kg7 46.Qa5 h5 47.Rc7 Rc7 48.Qc7 Kf8 1–0. Bonetti,Shane – MacChess 5.0, 2000.

4.e3 cb5 5.Bb5 a6 6.Ba4 (6.Bd3 d5=) 6...Be7 (6...b5 7.Bb3=+) 7.0-0 (7.Bb2 0-0=) 7...0-0 8.c4 d5 9.cd5 Nd5 10.Bb2 (10.e4 Nf6 11.e5 Nd5=) 10...Bf6 (10...b5 11.Bc2=+) 11.d4= b5 12.Bb3 (12.Bc2 Bb7=) 12...Bb7 13.Nbd2 (13.e4 Nf4 14.Nc3 Nc6=) 13...Nb6 (13...Nd7 14.e4 Nf4 15.Ba3=) 14.Re1 (14.Bc2 Be7=) 14...N8d7 15.Rc1 Rc8 16.e4 Rc1 17.Qc1 Be7 18.Nf1 Nf6 19.Ng3 Qd7 20.Ne5 Qc8 21.Qf4 Bd6 22.Rc1 Qb8 23.Qh4 Be5 24.de5+= Ne8? 25.Ba3+– Qe5 26.Bf8 Kf8 27.Qh7 Ke7 28.Re1 Nd6 29.f3 Qd4 30.Kh1+– Nbc4 31.Qh4 Qf6 32.Qf6 gf6 33.Kg1 Ba8 34.h4 Nd2 35.Rd1 Nb3 36.ab3 f5 37.e5 Ne8 38.Kf2 f4? 39.Ne2 Bd5 40.Nd4 Ng7 41.g4 f6 42.ef6 Kf6 43.b4 Bc4 44.Ra1 e5 45.Ne2 1–0. pumpkin (2290) – bredrook (2245), net–chess.com, 2006.

4.e3 d5 5.a4 a6 6.Bb2 Bd7 7.Ne5 ab5 8.Nd7 Qd7 (< 8...Kd7 9.ab5 Ra1 10.Ba1+=) 9.ab5 Ra1 10.bc6 bc6 11.Ba1 Be7 12.Be2 0-0 13.0-0 c5 14.d3 d4 15.Nd2 Nc6 16.Nc4 e5 17.f4 e4 18.de4 Ne4 19.Bd3 f5 20.Qf3 Qe6 21.Re1 Bf6 22.g4 g6 23.Kg2 Re8 24.g5 Bg7 25.Rb1 Nb4 26.ed4 Nd3 27.cd3 Bd4 28.Bd4 cd4 29.Re1 Qc8 30.Re2 Nc3 31.Re8 Qe8 32.Ne5 Qd8 33.Nc6 Kh8 1–0. Lorenc,To1 (2140) – Bartos,M (1945), Karlovy Vary Open, 2011.

4.e3 d5 5.c4 Bb4 6.Qa4 Be7 7.cd5 ed5 8.Be2 0-0 9.0-0 cb5 10.Qb5 Nc6 11.Bb2 Qc7 12.Rc1 Bd7 13.Be5+= Ne5 14.Rc7 Bb5 15.Bb5 Nf3 16.gf3 Bb4 17.Rb7 Rab8 18.Rb8 Rb8 19.a4 d4 20.Ra2 Rc8 21.Na3 Rc1 22.Kg2 Nd5 23.Nc2 de3 24.de3 Bc3 25.Bd3 g6 26.Be4 Nb4 27.Nb4 Bb4 28.a5 a6 29.Ra4 Be1 30.Bb7 Rc5 31.f4 Ra5 32.Ra5+/– Ba5 33.Ba6 f5 34.h3 Kf7 35.Bd3 Ke6 36.Kf3 ½–½. oldsage – Whiterose, ChessWorld.net, 2006.

4.e3 Be7 5.a4 cb5 6.ab5 a6 7.Bb2 a5 8.d4 b6 9.Nbd2 Bb7 10.Bd3 d5 11.Ne5 Nbd7 12.Ndf3 Rc8 13.0-0 h6 14.Qe2 0-0 15.Rfc1 Ne5 16.de5 Nd7 17.Ra4 Nc5 18.Rg4 Ne4 19.c3? (19.Nd4 Bb4=) 19...f5?? (19...h5 20.Rg3 Ng3 21.hg3–+) 20.Rg6? (better is 20.ef6 Bf6 21.c4=) 20...Kf7–+ 21.Nh4?? Bh4 22.Qh5 Bf2 23.Kf1 Qh4 24.Rf6 Kg8 25.Rf8 Rf8 26.Qg6 Be3 27.Rc2 Qh2 28.Ke2 Qf4 29.Qe6 Kh7 30.Qe7 Ng3 31.Kd1 Rg8 32.Qb7 Qg4 33.Ke1 Ne4 34.Qd5 Bf2 35.Rf2+/– Nf2 36.Kf2 Qh4 37.g3?? Qe7?? 38.Qd6 Qd6 39.ed6 Rd8 40.Ba3 g6 41.c4 Kg7 42.c5 bc5 43.Bc5 Kf6 44.b6 Ke6 1–0. Svoboda,Jaroslav – Savel,Jaroslav, Klatovy op, 1995. (=1.Nf3 Nf6 2.b4 e6 3.b5 c6)

4.Bb2 c5 5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3).

4.Bb2 Bd6 5.c4 0-0 6.e3 b6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0-0 6.c4 b6).

4.Bb2 Be7 5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3).

4.e3 a6 5.c4 dc4 6.Bc4 ab5 7.Bb5 Bd7 8.Qb3 Nc6 9.Bb2 Be7 (9...Bd6 10.Na3=+) 10.0-0 0-0 11.d4 Nd5 12.a3 (12.Bc6 Bc6 (< 12...bc6 13.Rc1+=) 13.Ne5 Qd6=) 12...Na5=+ 13.Qd3 Bb5 14.Qb5 c6 15.Qd3 Qb6 16.Bc3 Qb3 17.Nfd2 Qa4 18.Ba5 Ra5 19.e4 Nf4 20.Qe3 Bg5 21.Nc3= Qc2 22.Rfc1 Qd2!?=+ 23.Qd2 Nh3 24.gh3 Bd2 25.Rc2 Bf4 26.Ne2 Bd6 27.a4 Rfa8 28.Rc4 Kf8 29.e5 Be7 30.Nc3 Ke8 31.Rb1 R8a7 32.Kg2 Bg5 33.Ne4= Be7 34.Nc3 Kd7 35.Kg3 c5 36.Nb5= Ra8 37.dc5 Kc6 38.Nd6 Ra4 39.Ra4 Ra4= 40.Nb7. Karlicky,P – Smolka,Josef, Prague Bohemians, 1977.

4.e3 c5 5.c4 b6 6.Be2 Be7 7.cd5 Nd5 8.0-0 0-0 9.Bb2 Bf6 10.Nc3 Bb7 11.Qb1 Nd7 12.Rd1 Qe7 13.Nd5 (13.Bd3 h6=) 13...ed5 14.d4 (14.Bf6 Nf6 15.Qc2 a6=) 14...c4 15.Bc3 Rfb8 (15...Rfc8 16.Rc1=) 16.Rc1 a6 17.Bd1 (17.ba6 Ra6 18.Bd1 Qe6=) 17...ab5 18.Bc2 Bc6 (18...g6 19.Qb5 Rc8 20.a4=) 19.Bb4 (19.Bh7 Kh8 20.Bb4 Qe8+=) 19...Qd8 (19...Qe8 20.Bh7 Kh8 21.Bf5+=) 20.Bh7+/– Kh8 21.Bc2 (21.Bf5 g6 22.Bg4 Bg7+=) 21...Be7 (21...Rc8 22.Bf5+=) 22.a3 Bb4 (22...Rc8 23.Bf5+=) 23.ab4 Qf6 (23...Ra1 24.Qa1 Ra8 25.Qb2+=) 24.Qb2 Kg8 25.Ra8 Ra8 26.Ra1 Re8 27.Bb1 Kf8 28.Ra6 Ke7 29.Qc2 Qd6 30.Qc3 Bb7 31.Ra7 Rb8 32.Nh4 g6 33.Nf3 Nf6 34.Ne5 Ke8 35.e4 Ne4?? 36.Qh3+/– Ke7 37.Qh4 g5?? 38.Qh7+– Qf6 39.Be4 de4 40.Qe4 (40...Ke8 41.Rb7 Rb7 42.Qb7+–) 1–0. orane – ysw6, caissa.com, 2006.

4.e3 c5 5.c4 d4 6.Bb2 de3 7.fe3 Be7 8.Be2 0-0 9.0-0 a6 10.a4 ab5 11.ab5 (11.cb5 Nbd7+=) 11...Ra1= 12.Ba1 Nbd7 13.Nc3 b6 14.Qc2 Bb7 15.Bd3 Qa8 (15...Qc7 16.Ne4=) 16.Bb2 Bf3 (16...Qb8 17.Ne4+=) 17.gf3+= Ne5 18.Be4 (18.Nd5! ed5 19.Be5+=) 18...Qd8 (better 18...Ne4 19.Ne4 Ng6=) 19.Kf2?? (better 19.Na4 Ne4 20.Qe4=) 19...Nc4–+ 20.Rg1 (20.Ke1 Qd6 21.Rf2 g6–+) 20...Qd2 21.Qd2 Nd2 22.Bd3 c4 (22...Rd8 23.Be2 Nd7 24.Rc1–+) 23.Bc2 (23.Be2 Rc8 24.Na4 c3 25.Nc3 Nc4–/+) 23...Nb3 (23...g6 24.Rd1 Nb3 25.Bb3 cb3 26.Ne2–+) 24.Ne4 (better 24.Na4!? Rd8 25.Bc3–/+) 24...Ne4–+ 25.Be4 f6 (25...g6 26.Ke2–+) 26.h4 (26.Bc3 g6–+) 26...Nc5 27.h5 (27.Bb1 Nd3 28.Bd3 cd3–+) 27...Ne4 28.fe4 e5 29.h6 g6 30.Ra1 Rd8 31.Ke2? (31.Ra7 Bf8 32.Ke2 g5–+) 31...Bc5 (better 31...Bb4 32.Bc1 Ba5–+) 32.Ra7 Rf8 (32...g5 33.Rg7 Kh8 34.Rf7–+) 33.Kd2? (33.Ba3 Ba3 34.Ra3 Rc8–/+) 33...Rd8 34.Kc3?? (better 34.Ke2=) 34...Be3 35.Kc4? (35.Rg7 Kh8 36.Rf7–/+) 35...Bh6 36.Ba3 (36.Rc7 Be3 37.Rc6 Kg7 38.Rc7 Kh6–+) 36...Be3 (36...Rd4!? 37.Kb3 Re4 38.Rb7–+) 37.Rg7 0–1. yodamo – tele, ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e6 3.b5 d5)

4.e3 c6 5.Bb2 Bd6 6.d4 (6.Nc3 Nbd7=) 6...cb5 7.Bb5 Bd7 8.Qd3 0-0 9.0-0 Nc6 (9...Bb5 10.Qb5 Nc6 11.Nbd2=+) 10.c4 (10.Ba3 Ne4=+) 10...Ne4 (better 10...a6!? 11.Bc6 dc4 (11...bc6?! 12.Nbd2=) 12.Qc4 Bc6–/+ (12...bc6?! 13.Nbd2=)) 11.Nc3=+ Nc3 12.Bc3 (12.Qc3 a6 13.Bc6 Bc6 14.Rfc1=) 12...f5 (12...a6!? 13.c5 Ne5 14.de5 Bb5=+) 13.Ba4 (13.cd5 ed5 14.Ne5 a6 15.Bc6 Bc6 16.Nc6 bc6+=) 13...Rf6 (13...dc4 14.Qc4 Rc8 15.Qb3=) 14.Bb3 (14.cd5 ed5 15.Rab1 b6+=) 14...Ne7 (14...Na5 15.cd5 Nb3 16.ab3 ed5 17.Ne5=) 15.Ne5+= Be8 (15...dc4 16.Bc4 Rc8 17.Rfc1+= (worse 17.Nd7 Qd7 18.Rfc1 Bh2 19.Kh2 Qc7 20.Kg1 Qc4 21.Qc4 Rc4=+)) 16.f4 (16.Rab1 Be5 17.de5 Rg6+=) 16...Rh6 17.Rab1 Be5 18.de5 Bc6 19.Bb4 Ng6? (better 19...dc4!? 20.Qd8 Rd8 21.Bc4 Nd5=) 20.cd5+– ed5 (better 20...Bd5!? 21.Bd5 Qd5 22.Qd5 ed5+–) 21.Rfd1 1–0. Shabanov,Nurlan – Rafili,Said, Aydin Guseinov Memorial – Blitz, 2016. (=1.Nf3 Nf6 2.b4 e6 3.b5 d5)

4.e3 Bd6 5.d4=+.

4.e3 Nbd7 5.d4= Ne4 (5...a6 6.ba6 b6 7.Bb5=) 6.Bd2 (6.Bd3 Bb4 7.Nfd2 Nc3=) 6...Nd2 (6...Bd6 7.c4=) 7.Qd2 Bd6 8.Nc3 0-0 9.Bd3 Nf6 (9...c5 10.bc6 bc6 11.0-0=+) 10.0-0= Ba3 (10...Bd7 11.Rab1=) 11.Ne2 (11.Rfb1 Bd6=) 11...Qe7 (11...a6 12.ba6 b6 13.c4=) 12.c4 a6 13.ba6 b6 (worse 13...ba6 14.c5 e5 15.de5+=) 14.cd5 ed5 15.Ne5 Ba6 16.Ba6 Ra6 17.Qd3 (17.Nc6 Qe6 18.Qc2 Rfa8=+) 17...Rfa8 18.Nc6 (18.Qc2 Bd6 19.Rfc1 Be5 20.de5 Ne8=+) 18...Qe8–/+ 19.Qc2 b5 20.Ne5 c5 21.Ng3 c4 (21...Rc8 22.Qb1–/+) 22.Nf3 (22.Rfe1 Bd6 23.e4 de4 24.Ne4 Be5 25.Nf6 gf6 (25...Bf6?! 26.Re8 Re8 27.Qb2+=; worse 25...Rf6 26.Re5 Re6 27.Re6 Qe6 28.Qd2=+) 26.de5 fe5–/+) 22...Bd6 23.Nf5 Bb4 (23...Bf8 24.Qb2–+) 24.Rfb1–/+ Ra4 (24...Bf8 25.Ng5) 25.Ne5 R8a6 (25...Bf8 26.Rb2–/+) 26.Rb2 (26.f3 Ba5–/+) 26...Qf8 (26...Ba3!? 27.Rbb1 Ne4–/+) 27.Ng3=+ g6 28.Ne2 Qd6 (28...Ne4!?=+) 29.Rab1= R6a5 30.a3 (30.h3 Ne4 31.a3 Ba3 32.Rb5 Rb5 33.Rb5 Rb4 34.Rb4 Qb4=+) 30...Ba3=+ 31.Rb5 Rb5 32.Rb5 Rb4 33.Rb4 Qb4 34.Nf3 (34.Qd1 Qb3 35.Qe1 Bd6=+) 34...Ne4–/+ 35.h3 (35.Nf4 Qb3 36.Ne1 Nc3–/+) 35...Qb3 36.Ne1 Qb4 37.Nf3 Qa5 (37...Kg7 38.Nf4 Qb3 39.Ne1–/+) 38.Qa2=+ f6 39.Nf4 Nc3 40.Qa1 (40.Qd2 Qb4=+) 40...Kf7 41.Qe1 Bb4 42.Kh1 (42.Ne2 Qa3=+) 42...Qa2 43.Ng1 (43.h4 Qb2–/+) 43...Qb2 (43...g5!? 44.Nh5 Qb1 45.Qb1 Nb1–+) 44.Qf1=+ Qc2 45.g3 g5 46.Nfe2 Qd3 47.Kh2 (47.Kg2 Ne2 48.Qe2 Qe2 49.Ne2 Bd2–+) 47...h5 (47...Ne2!? 48.Qe2 Qe2 49.Ne2 Bd2–+) 48.Qg2–/+ Ne4 (48...Ne2?! 49.Qd5 Kg7 50.Qb7 Kg6 51.Qb4=) 49.Qf3 Kg6 (49...Ke7!? 50.Qf5 Nc3–/+) 50.g4= hg4 51.hg4 Qb3 (51...Kg7 52.Qf5=) 52.Qf5 (52.Kg2 Kg7=) 52...Kg7 53.Qd7 Kh6 (53...Kf8 54.Kg2 c3 55.f3=) 54.Qf7+= Qc2 (54...Qd3 55.Kg2+=) 55.f3 Nd2 (better 55...Nc3!?+=) 56.Kg2+– (worse 56.Qf6 Qg6 57.Qh8 Qh7 58.Qh7 Kh7+=) 56...c3 57.Qf6 Qg6 58.Qh8 Qh7 59.Qe8 Qg6 60.Qb5 Qd6 (better 60...Qb1 61.Ng3 c2+–) 61.Ng3 Kg6 62.Nh3 Qf8 63.Qd3 Kh6 (63...Kf6 64.Qf5 Ke7 65.Qe5 Kd7 66.Qd5 Kc7 67.Ng5 Kb6+–) 64.Nf5 Kg6 (64...Kh7 65.Ne7 Ne4 66.Nd5+–) 65.Nh4 Kg7 66.Qg6 Kh8 67.Ng5 Qg7 68.Qe8 (68.Qe8 Qf8 69.Qh5 Qh6 70.Qh6 Kg8 71.Qg6 Kf8 72.Qf7) 1–0. GLChess211 – Dragon311_2, computer chess game, 2000.

4.e3 Be7 5.c4 dc4 6.Bc4 0-0 7.0-0 c5 8.Bb2 Nbd7 9.Qc2 b6 10.d3 (10.d4 Bb7=) 10...Bb7 11.Nbd2 Bd6 12.Qc3 (12.Ne4 Ne4 13.de4 Qc7+=) 12...Qc7 (12...a6 13.Ne4 Qe7 14.a4=) 13.a4 (13.Ne4 a6=) 13...e5 (13...a6 14.Rfc1=) 14.Rfd1 (14.a5 Rad8+=) 14...Rfd8 (14...a6!?=) 15.Qb3+/– Nf8 16.Ng5 Rd7 17.Nde4 Ne4 18.de4 (18.Ne4?! a5+=) 18...h6? (better is 18...Rad8!?+–) 19.Nf7 Rf7 20.Bf7 Kh8 (20...Qf7 21.Qf7 Kf7 22.Rd6+–) 21.Bd5 Bd5 (21...Rd8 22.Bb7 Qb7 23.Be5+–) 22.Qd5 (< 22.Rd5 Qe7+–; < 22.ed5 e4 23.h3 Bh2 24.Kh1 Bd6+–) 22...Rd8 23.Be5! Be5 24.Qd8 Bh2 (24...Qf7 25.Rac1+–) 25.Kh1 Qd8 (25...Kg8 26.f4 Qd8 27.Rd8 Bg3+–) 26.Rd8 Be5 27.Rf8 Kh7 28.Rd1 (28…c4 29.Rc8+–) 1–0. oldsage – dannyboy238, ChessWorld.net, 2006.

4.Bb2 c6 5.c4 d5 6.e3 0-0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0-0 6.c4 c6).

4.c4 a6 5.ba6 Na6 6.g3 b6 7.Bg2 Bb7 8.0-0 0-0 9.Nc3 Nc5 10.d3 d6 11.Nd4 Bg2 12.Kg2 Qd7 13.f4 (13.e4!?=+) 13...d5–/+ 14.cd5 ed5 (14...Nd5 15.Ne4–/+) 15.Qc2 Rfe8 16.Nd1 Bd6 17.Nf2 Ra4 18.Qb2 Nb7 19.Re1 (19.e3 Bc5–/+) 19...Bc5 (better is 19...Ba3!? 20.Qc2 Bc1 (20...Rd4?! 21.Ba3 Ra4 22.Bb2–/+) 21.Rec1 Rd4 22.Qc7 Qc7 23.Rc7 Nc5–+) 20.Nf3–/+ d4 21.Ne5 Qd5 22.Kg1 Nd6 23.Nfg4 Ng4–+ 24.Ng4 f6 25.Bd2 Rea8–+ 26.e4? de3 27.Be3 Ra2 28.Ra2 Ra2 (28...Ra2 29.Qa2 Be3 30.Re3 Qa2–+; 28...Qa2?! 29.Qa2 Ra2 30.Bc5 bc5 31.Rc1=+) 0–1. Brodie,Hugh – Doubleday,William G, Canada op Toronto, 1968.

4.e3 0-0 5.Bb2 b6 6.Be2 Bb7 7.0-0 c6 8.a4 a6 9.Na3 cb5 (9...Qc7 10.c4=) 10.ab5 d5 11.c4 dc4 12.Nc4 (12.ba6 Na6 13.Nc4 Nb4=) 12...ab5=+ 13.Ra8 Ba8 14.Nce5 Bc5 15.d4 Bd6 16.Bb5 Nbd7 17.Qa4 Bf3 18.Nf3 (< 18.gf3 Be5 19.de5 Nc5=; < 18.Nd7 Ng4 19.Ne5 Ne5 20.de5 Qg5–/+) 18...Qe7 (18...Nb8 19.Rc1+=) 19.Ra1 (19.e4 e5+/–) 19...h6 (19...Nb8 20.Qa7+/–) 20.Bc6 Rc8 21.d5 Nc5 22.Qb5 ed5 23.Ra8 Ra8 24.Ba8 Ncd7 25.Qc6 Bc5 26.Qc7 Ne8 27.Qg3?? Nef6?? 28.Nd4 ½–½. gtate (1945) – johnstar (1965), net–chess.com, 2003.

4.e3 a6 5.Bb2 ab5 6.Bb5 c6 7.Bd3 Qb6 8.Qc1 d6 9.Nc3 0-0 10.0-0 Bd7 11.Bc4 d5 12.Bb3 Qd8 13.Ne5 Bc8 14.d4 Nbd7 15.Nd3 Qc7 16.Qd2 Bd6 17.h3 Bh2 18.Kh1 Bd6 19.Kg1 Bh2 20.Kh1 Ne4 21.Ne4 de4 22.Nf4 Bf4 23.ef4 Qa5 24.c3 Rd8 25.Qe3 Nf6 26.Rac1 Qf5 27.Rce1 Qa5 28.c4 b5 29.c5 Bd7 30.Kg1 b4 31.Qd2 Qb5 32.Re3 Be8 33.Qc1 Qb8 34.g3 Qa7 35.g4 h6 36.g5 hg5 37.fg5 Nd5 38.Re4 Bd7 39.Rfe1 Bc8 40.g6 fg6 41.Qg5 Nf6 42.Re6 Be6 43.Re6 Kh8 44.Rc6 Kh7 45.Qh4 Nh5 46.Rg6 Kg6 47.Qg4 Kh6 48.Bc1 Nf4 49.Bf4 g5 50.Qg5 Kh7 51.Qh6# 1–0. Green Light Chess v2.15c – Pentagon 1.3, computer chess game, 2001.

4.e3 c5 5.Bd3 0-0 6.0-0 d6 7.Bb2 e5 8.Nc3 b6 9.Ne5+/– de5 10.Qf3 e4 11.Be4 Bg4 12.Bh7 Nh7 13.Qa8 Qd2 14.Qa7 Qc2 15.Nd5 Bg5 16.Be5 Nd7 17.Bd6 Qd2 18.e4 Re8 19.h3 Be6 20.Nc7 Qd6 21.Ne8 Qe5 22.Rad1 Nhf8 23.Nd6 Be7 24.f4 Qc3 25.f5 Qe3 26.Kh1 Ba2 27.Nc8 Bf6 28.Qa2 Qg3 29.Rf3 Qc7 30.Nd6 Ne5 31.Ra3 Be7 32.Ne8 Qb8 33.Ra8 Qb7 34.Ra7 Qe4 35.Re7 Qf5 36.Nd6 Qf6 37.Re5! Qe5 38.Qf7 Kh8 39.Rd5 Qa1 40.Kh2 g6 41.Qf8 Kh7 42.Ne8 g5 43.Rd7 Kg6 44.Qf7 Kh6 45.Qh7 1–0. GLChess211 – EnginMax181, computer chess game, 2001.

4.Bb2 a5 5.Qa4 Na6 6.b5 Nc5 7.Qh4 Be7 8.Na3 Nfe4 9.Qh5 Na4 10.Ne5 0-0 11.Bc1 Bb7 12.f3 f6 13.Nd3 Nec5 14.Nc5 Nc5 15.Nc2 Qe8 16.Qe8 Rae8 17.e3 e5 18.Be2 e4 19.Nd4 Bd5 20.c4 Bb7 21.Nf5 Bd8 22.0-0 Re5 23.Ng3 ef3 24.Bf3 Bf3 25.d4 Be4 26.de5 Bd3 27.Bb2 Bf1 28.Rf1 Nd3 29.Ba3 Re8 30.ef6 Bf6 31.Rd1 Ne5 32.c5 Bg5 33.Bc1 bc5 34.Ne4 Be7 35.Rd5 Bf8 36.Ng5 c4 37.Bb2 Nd3 38.Bd4 h6 39.Nf3 c6 40.bc6 dc6 41.Ra5 c5 42.Bc3 Re3 43.a4 Nb4 44.Bd2 Ra3 45.Ne1 c3 46.Be3 Ra1 47.Kf2 c4 48.Bd4 Nc6 49.Bc3 Ra2 50.Kf1 Na5 51.Ba5 Ra4 52.Bc3 Bb4 53.Bb4 Rb4 54.Ke2 Rb2 55.Ke3 c3 56.Kd3 Rb1 57.Nc2 Kf7 58.Kc3 Rh1 59.h3 Ke6 60.Kd4 Rg1 61.Ne3 g5 62.Ke4 Rb1 63.Nf5 Re1 64.Ne3 Ra1 65.Kf3 Ra3 66.Ke4 Ra4 67.Kd3 Rb4 68.Kc3 Rb1 69.Kd4 Rb2 70.Ke4 Rb4 71.Kd3 Ra4 72.g3 Ra2 73.Nc2 Ke5 74.h4 gh4 75.gh4 Ra4 76.Ne1 Kf4 77.Kc3 Kg4 78.Kb3 Re4 79.Nd3 Kh4 80.Nc5 Re7 0–1. Comet B25 – Comet B50, 2003.

4.g3 Bb7 5.Bg2 Be7 6.Qb3 0-0 7.0-0 d5 8.Ba3 Nbd7 9.d4 Rb8 10.b5 c5 11.bc6 Bc6 12.Be7 Qe7 13.c4 dc4 14.Qc4 Rfc8 15.Qa6 Nd5 16.Nbd2 (16.Qa7?? Ra8 17.Qa8 Ba8–+) 16...Nc3 17.a4 b5 18.ab5 Bb5 19.Qa7 Ne2 20.Kh1 Bc6 (better is 20...Qd8!?=+) 21.Ne5+= Bb5 22.Rfb1 Qd6 23.Bb7 Ne5 24.Ne4?? Bc6–+ 25.de5 Qd3 26.Qe3 Qe3 27.fe3 Rb7 28.Rb7 Be4# 0–1. Sitnic,A (1920) – Schreiner,Pe (2135), EYb16, Herceg Novi MNE, 2008.

4.a3 d5 5.d4 c4 6.Bf4 b5 7.a4 Bd7 8.ab5 Bb5 9.Ra5 a6 10.Na3 Bc6 11.Nc2 Nbd7 12.Ne5 (12.e3 Be7+=) 12...Ne5= 13.de5 (13.Be5 Ne4=) 13...Nd7 (better is 13...Ne4!? 14.Bd2 Qh4=) 14.e4+= Nc5 (14...Qh4 15.ed5 Qf4 16.dc6 Ne5=) 15.ed5 ed5 16.Rc5 Bc5 17.bc5 Qa5 18.Qd4 0-0 19.Be2 Qd8 (19...Qa2 20.Bd1 Rfb8 21.Nb4 Rb4 22.cb4+–) 20.Nb4+– Qd7 21.Bf3 Rfd8 22.Bg5 Rdb8 23.0-0 h6 24.Nc6 (24...Qc6 25.Bd5+–) 1–0. tonycally – touwladder, ChessWorld.net, 2004.

4.bc5= Bc5 5.d4 Be7 6.g3 (6.e3 0-0=) 6...b6 (6...d5 7.Bg2=+) 7.Bg2= Bb7 8.0-0 0-0 9.Na3 Qc7 (9...Be4 10.c4=+) 10.c4 (10.Bf4 Qc6 11.Qb3 d5=) 10...Rc8=+ 11.Bf4 Bd6?? (better 11...Qd8 12.Qa4 Ba3 13.Qa3 Rc4=+) 12.Nb5+– (12.Nb5 Bf4 13.Nc7 Bc7 14.Qb3+–) 1–0. mizuzul (2065) – blackcrowman (1930), ChessWorld.net, 2007. (=1.Nf3 Nf6 2.b4 e6)

4.d4 =+.

4.e3 a5 5.ba5 Ra5 6.c4 b6 7.cd5 ed5 8.Bb2 Nc6 9.Nc3 Bd6 10.Bb5 Bd7 11.0-0 0-0 12.Qb3 Na7 13.Bd7 Qd7 14.Ne2 Ne4 15.d3 Nc5 16.Qc2 Qf5 17.Rfd1 Nc6 18.Qc3 Qg6 19.Nh4 Qh6 20.Nf3 Rfa8 21.Qd2 Ra2 22.Ra2 Ra2 23.Nc3 Ra5 24.Nd5 Qg6 25.Nc3 Ne5 26.Ne5 Be5 27.d4 Nb3 28.Qd3 Ra2?? 29.Na2+– Bh2 30.Kh2 Qd6 31.Kg1 Na5 32.Rc1 h6 33.Ba3 Qd8 34.Bb4 Nb7 35.Qe4 Nd6 36.Bd6 cd6 37.Qf5 g6 38.Rc8 gf5 39.Rd8 Kg7 40.Nc3 f6 41.Nd5 f4 42.Rd6 fe3 43.fe3 b5 44.Rf6 b4 45.g4 b3 46.Rb6 Kh7 47.Ne7 Kg7 48.Nf5 Kf8 49.Nh6 b2 50.g5 b1Q 51.Rb1 Kg7 52.Rb6 Kf8 53.Rd6 Ke8 54.g6 Ke7 55.Nf5 Kf8 56.Rd8# 1–0. GLChess210 – Pepito103, computer chess game, 2000.

4.g3 c5 5.bc5 Bc5 6.Bg2 0-0 7.0-0 Nc6 8.d4 Bb6 9.Nbd2 Re8 10.Bb2 Bd7 11.c4 Rc8 12.Rc1 Bc7 13.Ne5 Ne5 14.de5 Ng4 15.Nf3 Bb6 16.Bd4 Bc6 (< 16...Rc4 17.Rc4 dc4 18.Bb6 ab6 19.Qd4+/–) 17.h3 Bd4 (17...Nh6 18.cd5 ed5 19.Bb6 Qb6 20.Qd3+=) 18.Qd4+= Nh6 19.Qa7 (19.cd5 Qd5 20.Qa7 Ra8=) 19...Ra8= 20.Qc5 Ra5 21.Qb4 dc4 22.Rfd1 Qa8 23.Qc4 Ra4 24.Qd3 Be4 25.Qb3 Bd5 26.Qb1 Be4 27.Qb6 Ra2 28.g4 Ra6 29.Qc7 Rc6 30.Rc6 Bc6 31.Nd4 Qa4 32.Rd3 Bg2 33.Kg2 b5 34.Qb7 b4 35.e4 Kh8 36.Rb3 Rd8 37.Rb4 Qe8 38.Nc6 Rc8 39.Ne7 Rd8 40.Rc4 g5 41.Nc8 ½–½. gtate (2760) – ppost (2750), net–chess.com, 2010.

5.d3 Bd7 6.Be2 a5 7.Ba3 ab4 8.Bb4 c5 9.Qb3?? (better is 9.Ba3=+) 9...cb4–+ 10.cb4 Qe7 11.a3 Bb4! 12.Nfd2 0-0 13.0-0 Nc6 14.e4 Nd4 15.Qb4 Qb4 16.ab4 Ne2 17.Kh1 Ra1 18.g3 Bb5 19.Kg2 Bd3 20.Re1 Ne4 21.Ne4 de4 22.Re2 Rb1 (22...Rb1 23.Re4 Be4 24.Kh3 Rd8–+) 0–1. Rudolf – jnunes (1705), internet, 2007.

5.Bd3 Nbd7 6.Qe2 (6.0-0 e5 7.Be2 0-0=+) 6...a6 7.Bb2 (7.0-0 a5=+) 7...c5 (7...e5 8.e4–/+) 8.bc5=+ Nc5 9.c4 (9.Bc2 Bd7=+) 9...Nd3 10.Qd3 0-0 (10...dc4 11.Qc4 Bd7 12.d3=+) 11.Ng5 (11.Bf6!? Qf6 12.Nc3=) 11...h6?? (better is 11...dc4 12.Qc4 e5=+) 12.Bf6+– (12.Bf6 hg5 13.Bd8 Rd8 14.cd5+–) 1–0. donny38 – divergence (1700), internet, 2007.

5.Bd3 e5 6.Be2 0-0 7.0-0 c6 8.Bb2 Nbd7 9.d3 Qe7 10.Nbd2 e4 11.de4 de4 12.Nd4 Nb6 13.Re1 a5 14.a3 ab4 15.ab4 Ra1 16.Ba1 Bd7 17.Bb2 Ra8 18.Qb3 Ng4 19.h3 Nf2 20.Kf2 Qh4 21.Kf1 Bg3 22.Rd1 Bh3! 23.Bf3? Bg4 24.Ne2 Qh1 25.Ng1 ef3 26.gf3 Bh3 (27.Ke2 Rd8 28.Qf7 Kf7 29.Rf1 Qg2 30.Rf2 Qf2 31.Kd1 Qd2#) 0–1. Jonsson,Gudmundur – Woelfelschneider,Peter, TT–07.06, 2003.

5.d4 =+.

5.g3 e5 6.Bg2 e4 7.Nd4 0-0 8.d3 Bg4 (8...a5 9.ba5 c5 10.Nb5–/+) 9.f3 ef3 10.Nf3 Nbd7 11.0-0 Ne5 12.Qc2 Nf3 13.Bf3 Bf3 14.Rf3 Qe7 15.e4 (better is 15.Nd2!?=+) 15...de4–/+ 16.de4 Ne4 17.Nd2 Ng5 18.Qd3? Nf3 19.Qf3 (19.Nf3 Rfd8 20.Nd4 c5 21.bc5 Bc5–+) 19...Rfe8 20.Bb2 Qe2 21.Qf2 Re7 22.Nf3 Qf2 23.Kf2 Rae8 24.Re1 Re1 25.Ne1 b5 26.Bc1 Be5 27.Bd2 Bf6 28.Nf3 Re6 29.Ne1 Rc6 0–1. yulio – smoothmovermovesagain, ChessWorld.net, 2006.

4.c3 Ba5 5.Ne5 Ne4 6.Nc4 Nc3?? (better is 6...Qh4 7.Be3 Bc3 (7...Nc3?! 8.Qd3=+) 8.Nc3 Nc3–/+) 7.Qa4?? (7.Qc2 Nb1 8.Na5 c5+/–) 7...Na2 (better is 7...Na4 8.Na5 c5–+) 8.Kd1?? (better is 8.Bd2 Bd2 9.Ncd2=) 8...Nc3–+ (< 8...Nc1 9.Na5 b6 10.Nc4–+) 9.Nc3 Bc3 10.Rb1 Nc6 11.e3 d5?? 12.Ne5=+ 0-0 13.Rb3?? Bd4?? 14.ed4 Ne5 15.de5 c6 16.g4 a6 17.g5 b5 18.Qb4 a5 19.Qc5 a4 20.Rb1 Qa5 21.Qc6 a3 22.Rb5?? Qa4–+ 23.Kd2? a2 24.Bb2 Qf4 25.Kc3 a1Q 26.Ba1 Ra1 27.Rb8 Rc1 28.Kb2 Rc6 29.Rb3 Qe5 30.Kb1 Qe4 31.Bd3 Qh1 32.Ka2 Ba6 33.h4 Bd3 34.Rd3 Ra8 35.Kb3 Qb1 0–1. LADY – MrM, playchess.de, 2003.

4.c3 Be7 5.g3 (5.Nbd2 d5–/+) 5...0-0 6.Bg2 c5 7.0-0 Nc6 8.Nbd2 d5 9.Rb1 b6 10.Ne5 Ne5 (10...Bb7 11.Ndc4–/+) 11.de5 Nd7 12.Nf3 (12.f4 Bb7–/+) 12...Bb7 13.Qc2 f5 (13...h6 14.Qd3–/+) 14.h4 Qc7 (14...h6 15.Bf4–/+) 15.Bf4 Rad8 (15...h6 16.Bh3–/+) 16.h5 (16.a4 h6=+) 16...c4 (16...h6 17.Qd2=+) 17.h6 g6 18.Nd4 Nc5 19.Qc1 (19.Nb5 Qd7=+) 19...Bc6 20.Qe3 (20.Bg5 Rc8 21.Bf4 Bd7=+) 20...Bd7 21.Rfd1 Na4 (21...Rde8 22.f3=+) 22.Bd5= ed5 23.e6 Bc6?? (better 23...Qc8 24.ed7 Rd7 25.Qe6 Rf7=) 24.Bc7+– (24.Bc7 Rde8 25.Nc6+–) 1–0. Pierre – Waldorffy, internet, 2020.

4.a3 Ba5 5.Bb2 0-0 6.Nc3 d5 7.Na4 Nbd7 8.Be2 c5 9.0-0 c4 10.d3 b5 11.Nc3 Rb8 12.Nd4 Qb6 13.Rb1 b4 14.ab4 Qb4?? 15.Nc6+– Qb7 16.Nb8 Qb8 17.Ba3 Qc7 18.Nb5 Qe5 19.Bf8 Kf8 20.dc4 a6 21.Na7 Bc7 22.g3 Nb6 23.Rb6! Bb6 24.Nc8 Bc7 25.cd5 Nd5 26.Qd3 a5 27.Qh7 g6 28.f4 Qe3 (29.Rf2 Qd4+–). waller – froilo, playchess.de, 2003.

4.Bb2 d5 5.Be2 (5.a3 Bd6–/+) 5...Nbd7 (5...0-0 6.a3 Bd6 7.Nc3–/+) 6.0-0 0-0 7.a3 Bd6 8.h3 (8.c4 dc4 9.Bc4 a6–/+) 8...Qe7 (8...e5 9.d4 e4 10.Nfd2–/+) 9.Nc3–+ c6 (9...a6 10.d3–+) 10.d4 e5 11.de5 Ne5 12.a4 (12.Nd4 Re8–+) 12...h6 (12...Nf3!? 13.Bf3 Qe5 14.Re1–+) 13.Rb1 (13.Nd4 Re8–/+) 13...Rd8 14.Re1 Nf3 15.Bf3 Bf5 16.Ne2–/+ Bc7 17.Bf6 Qf6 18.Rb7 Qe5 19.Ng3 Bd6 20.Qd4 Qd4 21.ed4=+ Bc2 22.Rc1 Ba4–/+ 23.Nf5 a5 24.Be2? Bb4 25.Bd3 Bb3 26.Rc6–/+ a4?? 27.Rcc7?? Rf8?? 28.Ne7?? Be7–+ 29.Re7 Bc4 30.Bg6 Rae8?? 31.Bf7+– Rf7 32.Rf7 Ra8 33.Rg7 Kf8 34.Rh7 Kg8 35.Ra7 Ra7 36.Ra7 Bb3 37.Kf1 h5 38.Ke2 Bc4 39.Ke3 Bb3 40.Kf4 Bc2 41.Kg5 Be4 42.g3 h4 43.Ra4 hg3 44.fg3 Kf7 45.Ra6 Kg7 46.Kf4 Kf7 47.Ke5 Ke7 48.Ra5 Bg2 49.h4 Bf3 50.Rd5 1–0. savage13 – Bull_Dog_Baz, ChessWorld.net, 2007.

4.c3 Be7 5.d4 d5 6.g3 (6.Ba3 0-0–/+) 6...0-0 7.Bb2 c5 8.dc5 Bc5 9.a4 Nc6 10.h3 Qb6 11.Ra2 e5 12.Bb5 Be6 13.Ba3 d4 14.Bc5 Qc5 (14...Qc5 15.cd4 ed4–+) 0–1. Henkel,Ute (1625) – Boxberg,Marc (2045), RSX16D – Aprilturnier–1, 2008.

3.Na3 Bg7 4.d3 (4.d4!?=) 4...c5–/+ 5.Bb2 (5.Rb1 Nd5 6.Nb5 Nb4–/+) 5...cb4 6.Nc4 0-0 7.e4 d5 8.Ncd2 Nc6 9.e5 Nh5 10.d4 Nf4 11.c4 bc3 12.Bc3 f6 13.h3 (13.Qb3 fe5 14.de5 Qc7–+) 13...Bf5 (13...fe5 14.Ne5 Ne5 15.de5–+) 14.g3 Nd3 15.Bd3 Bd3 16.Nb3 (16.Qb3 Qd7–+) 16...fe5 17.Ne5 Ne5 18.de5 Be4 19.0-0? (better is 19.Rh2–+) 19…Qc8 (19...Qc8 20.Nd2 Qc3 21.Ne4 de4 22.Qd5 Kh8 23.Qe4 Be5–+) 0–1. Bouma,Jan – Trokenheim,Marek, email CTON, 1996.

3.Bb2 d5 4.e3 Bg7 5.d4 b6 6.c4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d5 6.d4 b6).

3.Nc3 e6 4.a3 d5 (4...Bg7 5.Bb2=) 5.e3 a5 6.ba5 Ra5 7.d4 (7.Bb2 Bd7=) 7...b6 8.Bd3 Ba6 9.0-0 Nc6 (9...Bd6 10.Re1=) 10.Bb2 Bd3 11.cd3 Bd6 (11...Bg7 12.Ne5 Ne5 13.de5=) 12.e4 de4 (12...Be7 13.e5 Nd7 14.Qc2=) 13.de4+= Bf8 (13...Be7 14.d5 ed5 15.Nd5+/–) 14.d5+/– Na7 (14...Qd5 15.Nd5) 15.de6 (15.Qb3 ed5 16.Nd5 Bg7+/–) 15...fe6 16.Qd8 (16.Qb3 Qe7+/–) 16...Kd8 17.Nd5! Ne4 (17...Rd5 18.Bf6) 18.Nc7! (< 18.Bh8 ed5 (< 18...Rd5 19.Rfe1 Nc5 20.Rad1+/–) 19.Rfd1 Bd6=) 18...Rg8 (18...Kc7 19.Bh8) 19.Ne6+– Kd7 20.Nf8 (20.Rfe1 Ke6 21.Re4 Kd5 22.Rd4 Kc6+–) 20...Rf8 21.Rfe1 Nd6 22.Ne5 Kc7 23.Rac1 Kb7 24.f3 Rc8 25.Nf7 Nf7 26.Re7 Ka6 27.Ra7! Ka7 28.Rc8 Kb7 29.Rg8 Nd6+– 30.Rg7 Ka6 31.Rh7 Nc4 32.Bf6 Rf5 33.Be7 Rd5 34.Bb4 Rd3 35.a4 Nb2? 36.Rg7 Rd1 37.Kf2 Rc1 38.Ke3 Rc6 39.h4 Na4 40.Rd7 Kb5 41.Rd6 Nc3 42.Rc6 Nd5 43.Kd4 Kc6 44.Bd2 Kd6 45.Bh6 Ne7? 46.Bf8+– Ke6 47.Be7 Ke7 48.Kd5 Kf6 49.g3 Kf5 50.Kc6 b5 51.Kb5 Kf6 52.Kc6 Ke6 53.Kc7 Ke7 54.g4 Kf8 55.Kd7 Kf7 56.f4 Kf6 57.Ke8 Kg7 58.Ke7 Kh7 59.f5 gf5 60.gf5 Kh6 61.f6 Kh5 62.f7 Kg6 63.f8Q Kh5 64.Qf4 Kg6 65.Qg5 Kh7 66.Kf7 Kh8 67.Qh6# 1–0. Chessmaster 3000 – Complete Chess System, computer chess game, 1995.

3.d3 Bg7 4.d4 0-0 5.e3 b6 6.Bd3 Ba6 (6...d5 7.0-0=) 7.e4 d6 8.0-0 c5 9.c3 cb4 10.cb4 Bd3 11.Qd3 Nc6 12.b5 Na5 13.Nc3 Rc8 14.Bg5 Qc7 15.Bf6 Bf6 16.Nd5 Qc4 17.Qc4 Rc4 (17...Nc4 18.Rac1+– (18.Nf6?! ef6 19.a4 Rc7+=)) 18.e5 de5 19.de5 (19.Nf6?! ef6 20.de5 fe5 21.Ne5 Rd4=) 19...Bg7 20.Ne7 Kh8 21.Rfc1 Re4 22.Re1 Re1 (22...Rc4 23.Rad1+–) 23.Re1 Re8 24.Nc6 Nc6 25.bc6 Rc8 26.e6 fe6 27.Re6 a5 28.a4 Bc3 29.Kf1 Bb4 (29...Kg7 30.Ng5+–) 30.Ne5 Kg8 31.Ke2 Bc3 32.f4 Be5 (32...Bb4 33.Kd3+–) 33.fe5 (33.Re5?! Rc6 34.Kd3 Kf7+=) 33...Kf7 34.Rf6 Ke7 35.Kd3 Rd8 36.Kc4 Rd2 37.Kb5 Rg2 38.Ka6 Rh2 39.c7 Rc2 40.Kb7 Kd7 (40...Rc7 41.Kc7 g5 42.Kb6 h5+–) 41.Rd6 Ke7 42.Rc6 (42.Rc6 Rc6 43.Kc6+–) 1–0. marekt (2255) – benhawkes (1835), ICC, 2003.

3.d4 Nc6 4.b5 Na5 5.Bd2 Nc4 (5...c6 6.e3=) 6.e4+= Nd2 7.Nbd2 d6 8.Bd3 Bg4 9.h3 Bd7 10.0-0 Bg7 11.c3 0-0 12.Rb1 c6 13.bc6 Bc6 (13...bc6!? 14.Qe2 Qc7+=) 14.d5+– Bd5 (14...Bd7!? 15.Rb7 e6 16.de6 fe6+–) 15.ed5+– Nd5 16.Rb7 Nc3 17.Qc1 Na2 18.Qa3 Nc3 19.Rb3 Nd5 20.Be4 e6 21.Rd3 Nf4? (better 21...Re8+–) 22.Rd6 (worse 22.Qd6 Nd3 23.Qd3 Qd3 24.Bd3 a5–+; 22.Ba8?! Nd3 23.Qd3 Qa8 24.Qd6 a5+–) 22...Ne2 23.Kh1 Qc7 24.Re1 Nf4 25.Ba8 Ra8 26.Rc1 Qb7 27.Qa5 Ng2 (27...Qb8 28.Qa6 Nd5+–) 28.Rd8 Rd8 29.Qd8 (29.Qd8 Bf8 30.Rc7+–; 29.Kg2?! Rd7=) 1–0. themonkey (2125) – oslo, GameColony.com, 2002.

3.d4 d5 (--> 1.b4 Nf6 2.d4 d5 3.Nf3 g6).

3.d4 d6 (--> 2…d6 3.d4 g6).

3.e3 e6 4.a3 a5 5.b5 Bg7 6.Bb2 0-0 7.Be2 b6 8.d4 d5 9.Nbd2 c6 (9...Nbd7 10.c4=) 10.a4 (10.0-0 Bb7+=) 10...Ne8 (10...cb5!? 11.Bb5 Bd7=) 11.Ba3+– Nd6 12.c4 c5 (12...Qe7 13.0-0+–) 13.dc5 bc5 14.Rc1 dc4 (14...Nd7 15.cd5 ed5 16.Nb3+–) 15.Nc4 (15.Bc5 Re8+–) 15...Ne4 (15...Nc4 16.Rc4 Qd1 17.Kd1 Rd8 18.Kc1+=) 16.0-0 (16.Qd8 Rd8 17.Nfe5 Bb7+–) 16...Nc3 (16...Nd7 17.Bd3 Bb7 18.Be4 Be4 19.Nd6 Bf3 20.Qf3+– (20.gf3?! Qh4+=)) 17.Qc2 (17.Rc3 Bc3 18.Bc5 Nd7 19.Bf8 Qf8+–) 17...Ne2 (17...Nd7!?+–) 18.Qe2+– Nd7 19.Rfd1 Qc7 20.Nfd2 (20.Bb2 Bb7 21.Bg7 Bf3 22.Qf3 Kg7+–) 20...Rd8 21.Nb3 Bb7 22.Ncd2 (22.e4 Bh6 23.Rc3 Nf6 24.Rd8 Rd8+–) 22...Bf8 23.Nc4 Bd5 (23...Bg7 24.e4 Bh6+–) 24.Nbd2 Nb6 (24...h6!?+–) 25.Nb6+– Qb6 26.e4 Bb7 27.Nc4 Qc7 28.Qe3 (28.Bb2!? Bg7 29.Bg7 Kg7 30.Qb2 e5+–) 28...Rd4 (28...Rd1 29.Rd1 Rd8 30.Rc1+–) 29.e5 (better 29.f3!? Bg7 30.e5 Rd1 31.Rd1+–) 29...Rad8= 30.Nd6 Bd6 (30...Rd1!? 31.Rd1 Bd6 32.ed6 Rd6 33.Rd6 Qd6=) 31.Rd4+= (worse 31.ed6 Qd6 (31...R8d6?? 32.Rd4 Rd4 33.Qd4 Qh2 34.Kh2 cd4 35.Rc7+–) 32.Qd4 Qd4 (32...cd4?? 33.Bd6 Rd6 34.Rc7+–) 33.Rd4 Rd4=) 31...cd4 32.Qd2 (32.Qe1 Qe7 33.Bd6=) 32...Be5? (better 32...Bb4 33.Bb4 Qe5 34.Ba5 Ra8=) 33.Rc7+– Bc7 34.h4 (34.Be7 Rd7 35.Bf6+–) 34...e5? (34...d3 35.Bb2 Rd5 36.Bc3+–) 35.f3?? (better 35.b6 Bb8 36.Qa5+–) 35...d3 (35...Bb6 36.h5+=) 36.Bc5 (36.Bb2 Rd5+=) 36...e4 37.fe4?? (better 37.Be3 ef3 38.gf3+=) 37...Bf4–+ 38.Qa5 (38.Qd1 d2 39.g3–+) 38...Re8 (better 38...Ra8 39.Qc3 d2–+) 39.e5?? (better 39.Bb4 Be3 40.Kh2+–) 39…d2–+ (39...d2 40.Qd2 Bd2–+) 0–1. Gainanov,Ramzil – Safin,Nail, Polufinal RB, 2011.

3.g3 c5 4.Bb2 (4.bc5 Qa5+=) 4...b6 (4...cb4 5.Bf6 ef6 6.e3=+) 5.Bg2 (5.bc5 bc5 6.Nc3 d5=) 5...Bb7 (5...cb4 6.Bf6 ef6 7.Nd4=) 6.d3 (6.bc5 bc5 7.Bf6 ef6+=) 6...Bg7 (6...cb4 7.Bf6 ef6 8.0-0=+) 7.e4 (7.bc5 bc5 8.Nbd2 Na6=) 7...d6 (7...cb4 8.a3 ba3 9.Na3=+) 8.Nc3 (8.bc5 dc5 9.Nc3 0-0=) 8...Nbd7 (8...cb4 9.Ne2–/+) 9.0-0 (9.a3 0-0=) 9...0-0 (9...cb4!? 10.Nd5 Bd5 11.ed5 0-0=+) 10.bc5 (10.a3 Re8=) 10...bc5 (10...Nc5 11.Re1=) 11.Re1 Ng4 (11...Rb8 12.Rb1=) 12.h3 (12.Nh4 Nge5=) 12...Nge5 13.Ne5 (13.Nd2 Rb8=) 13...Be5 14.Rb1 Qa5 (14...Rb8 15.f4 Bd4 16.Kh2=) 15.Qd2 (15.Ne2 Rfb8=) 15...Rae8 (15...Rab8 16.f4 Bd4 17.Kf1=+) 16.f4 Bg7 (16...Bd4 17.Kf1=) 17.Re2 (17.a3 Bd4 18.Kf1 Rb8=) 17...f5 18.e5 Bg2=+ 19.Kg2 de5 20.fe5 Ne5 21.Qe3 e6 22.Rbe1 c4 23.Nd1?? Qd5–+ 24.Kf1 Qh1 25.Qg1 Qg1 26.Kg1 Nf3 27.Kf2 Ne1 28.Bg7 Kg7 29.Re1 cd3 30.cd3 e5 31.Nc3 Rd8 32.Ke3 Rf6 33.Rb1 Rb6 34.Rb6 ab6 35.Nb5 Rd7 36.d4 ed4 37.Nd4 Kf6 38.g4 f4! 39.Ke4 g5 40.Nf3 Re7 41.Kd5 Re3 42.Ng1 Re1 43.Nf3 Rf1 44.Nd4 f3 (44...f3 45.Ke4 f2–+) 0–1. gbsrao (2220) – yknets (2280), net–chess.com, 2008.

3.g3 Nc6 4.a3 Bg7 5.Bg2 0-0 6.Bb2 d5 7.0-0 a6 8.d3 Bf5 9.h3 Qd7 10.g4 Be6 11.Ng5 Rad8 12.Ne6 Qe6 13.Nd2 Qd6 14.Rb1 e5 15.c4 Ng4? (better is 15...h6+=) 16.cd5+– Nf2 (16...Ne7 17.hg4 Nd5 18.Ne4+–) 17.Rf2 Nd4 18.Nc4 Qd7 19.e3 Nf5 20.Qg4 Rfe8 21.Be4 Nd6 22.Qd7 Rd7 23.Bg2 f5 24.Rc1 Nf7 25.e4 f4 26.Na5 Nd6 (26...Nd8 27.Nb3+–) 27.h4 h6 (27...Bf6 28.Bh3 Rde7 29.Rfc2 Bh4 30.Rc7+–) 28.Bh3 Rde7 29.Rg2 Kh7 30.Rgc2 g5 31.hg5 hg5 32.Rc7 Kg6 33.Kg2 Kh5 (33...Kf6 34.Bd7 Rd8 35.Be6+–) 34.Nb7! Rc7 (34...Nb7 35.Re7 Double attack (35.Re7 Decoy)) 35.Rc7 Bf8 36.Nd6 (36.Nd6 Bd6 37.Rh7 Kg6 38.Bf5 Kf6 39.Rh6 Ke7 40.d4 ed4 41.Bd4+–) 1–0. Carvalho,Diogo Bobone – Ludovisi,Cristian, CAPA–CNXC corr, 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4)

3.g3 h5 4.Bb2 d5 5.Bg2 a6 6.d3 Nc6 7.a3 Qd6 8.Nbd2 e5 9.c4 Bh6 (9...d4!?=) 10.b5+/– ab5 11.cb5 Bd2? (better is 11...Nd4 12.Nd4 ed4 13.Bd4 Bg7+/–) 12.Qd2+– (12.Nd2?! Nd4=; 12.Kd2?! e4 13.bc6 ef3 14.cb7 Bb7 15.Bf3 c5+/–) 12...Na5 (12...Nb8 13.Be5 Qe7+–) 13.Be5 (13.Ne5?! Nb3 14.Qe3 Na1 15.Ng6 Be6 16.Ba1 Ng4=) 13...Qe6 (13...Qb6 14.Qc3+–) 14.Qf4 (14.Bc7?! Nb3 15.Qb2 Na1 16.Qa1 Rg8+/–) 14...Ke7 (14...Nb3 15.Ra2 Rg8 16.Bf6 Qf5+–) 15.Nd4 g5 16.Qg5 Qb6 (16...Rg8 17.Ne6 Rg5 18.Ng5 c5+–) 17.Nc6! Nc6 (17...Nc6 18.Bf6 Double attack (18.Bf6 Decoy; 18.Bf6 Interception); 17...bc6 18.Qf6 Mate attack) 18.Qf6 Kd7 19.Bh3 Ke8 20.Qh8 Ke7 21.Bf6 Kd6 22.Qf8 Ne7 23.Qe7 1–0. Poleschi,Ricardo D – Million,Ken, UECC email, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4)

3.Ng5 Bg7 4.c3 0-0 5.Ba3 a5 6.Qc2 d6 (7.d4 ab4 8.Bb4 Nd5=+). kings – juanpacio (1680), internet, 2006.

4.Bb2 0-0 5.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.a3 0-0 5.Nf3).

4.d4 0-0 5.e3 a5 6.b5 b6 7.Bd3 Bb7 8.0-0 d6 9.Bb2 c5 10.bc6 Nc6 11.c4 e5 12.d5 Nb8 13.Nbd2 Nbd7 14.e4 Nc5 15.Qe2 Ba6 16.Rfc1 Nh5 17.g3 f5 18.ef5? (18.Rab1 Rc8=) 18...gf5 (better 18...e4!? 19.Bg7 ed3-/+) 19.Nh4 (19.Bc2 e4 20.Nd4 Qg5=) 19...Qg5 20.Ndf3 Qg4 Black intends e4 21.h3 Qh3 22.Bc2? (better 22.Ng5!? Ng3 23.Nh3 Ne2 24.Be2=) 22...Qg4 (22...e4 23.Bg7 ef3 24.Qf3 Ng7 25.Qf4-+) 23.Re1? (better 23.Bd1-+) 23...e4 24.Bg7 (24.Nd4 Qe2 25.Re2 Bc4-+) 24...ef3 (24...Kg7?! 25.Nd4 Qe2 26.Re2 Bc4 27.Nhf5 Kh8 28.Rd2=+; 24...Qg7?! 25.Nd2 Nf4 26.Qd1-+) 25.Qe7 (25.Qf3 A) worse 25...Qg7 26.Qh5 f4 27.Nf5 Rf5 28.Bf5+- (28.Qf5?! fg3 29.fg3 Bc4+=); B) 25...Ng7 26.Qg4 fg4-+) 25...Ng7 (25...Ng3 26.fg3 (26.Bf8?? Nf1 27.Kf1 Bc4 28.Re2 fe2 29.Ke1 Qg1 30.Kd2 Qa1 31.Nf5 e1Q 32.Qe1 Qe1 33.Ke1 Rf8-+) 26...Qg3 27.Kh1 Qh3 28.Kg1-+) 26.Qd6 Ne4 27.Qb6 (27.Be4 fe4 28.Rac1-+) 27...Ng3! 28.fg3 (28.fg3 Qg3 Mate attack) 28...Qg3 29.Kf1 (29.Kh1 Qh4 30.Kg1 Qg3 31.Kh1 Qg2) 29...Qh4 (29...Bc4 30.Bd3 Bd3 31.Re2 fe2) 30.Bd3 f4 (better 30...Qh3 31.Kf2 Qg2 32.Ke3 Rfe8 33.Kd4 Qf2 34.Kc3 Qb6-+) 31.Qf2 (31.Rec1 Qh3 32.Ke1 Rfe8 33.Kd2 Qg2 34.Kc3 Reb8-+) 31...Qh3 32.Kg1 Bc8 (32...Bc4 33.Qh2 Qg4 34.Kh1 Bd3 35.Rg1-+) 33.Qh2 (33.Be4 Qg3 34.Qg3 fg3-+) 33...Qg3 (better 33...f2 34.Qf2 Qd3 35.Rad1 Qc4 36.Qd4 Qd4 37.Rd4-+) 34.Kh1 Bh3 35.Bf1 Bf1 36.Rf1 Ra6 37.Rg1 (37.Ra2 Rf5 38.Rg1-+) 37...Qh2 38.Kh2 Rh6 0-1. Arifars17 (2445) - deni165 (2400), HBD Arifa Rizki Syaputra Arena, lichess.org, 2019. (=1.Nf3 Nf6 2.b4 g6)

(--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7).

4.c4 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0).

4.c4 0-0 5.e3 d6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6).

4.c4 0-0 5.e3 d6 6.d4 Nbd7 7.Nc3 e5 8.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.Nc3).

4.e3 0-0 5.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3).

4.e3 0-0 5.c4 c6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6).

4.e3 0-0 5.c4 c6 6.Be2 d6 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 c6 7.Be2).

4.e3 0-0 5.d4 d5 6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d5 6.d4).

4.e3 0-0 5.Be2 b6 6.0-0 Bb7 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 b6 6.Be2 Bb7 7.0-0).

4.e3 d6 5.Be2 0-0 6.0-0 e5 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.0-0).

4.e4 0-0 5.Bc4 d6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e4 d6 5.Bc4 0-0).

4.g3 0-0 5.Bg2 c6 6.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3 c6 6.Bg2).

4.g3 c6 5.c4 0-0 6.Bg2 d6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3 d6 6.Bg2 c6).

4.g3 d5 5.Bg2 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d5).

4.g3 d6 5.Bg2 Nbd7 6.0-0 e5 7.d3 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 d6 6.0-0 e5 7.d3 Nbd7).

4.Ba3 Nd5?? 5.Nd5 1–0. Martin – Trkn, itsyourturn.com, 2000.

4.Rb1 d5 5.d4 Nc6 6.b5 Ne4 7.Ne4 de4 8.bc6 ef3 9.cb7 Bb7 10.ef3 Rb8 11.Be3 e5 12.de5 Be5 13.Qd8 Rd8 14.Rb7 Bc3 15.Ke2 0-0 16.Rc7 Bd4 17.Ke1 Be3 18.fe3 a5 19.Bc4 Rb8 20.Ke2 Kg7 21.Rd1 h5 22.Rdd7 Kh6 23.Rf7 Rh8 24.Rf6 Kg5 25.f4 Kf6 1–0. mikekelly666 – boldeagle, ChessWorld.net, 2005.

4.Bb2 d5 5.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.Nc3).

4.e3 a6 5.d4 d6 6.Bd3 Nc6 7.Rb1 0-0 8.0-0 e5 (8...d5 9.a3=) 9.a4 (9.d5 Ne7 10.e4 Nd7+=) 9...Bg4 (9...ed4 10.ed4 Re8 11.Re1=) 10.b5 (10.d5 e4 11.Be4 Ne5=) 10...Ne7 (10...ab5 11.ab5 Ne7 12.de5 de5 13.h3=) 11.ba6+= ba6 12.de5 de5 13.Ba3 Re8 14.Bc4 (better 14.h3 Be6 15.e4+=) 14...e4?? (14...Qd1 15.Rfd1 Nc6+=) 15.Qd8+/- Rad8 16.Ne5 Rf8?? (better 16...Ned5 17.Nd5 Nd5 18.Ng4 h5 19.Ba6 hg4+-) 17.Be7+- (17.Be7 Be6 18.Bd8 Rd8 19.Be6 fe6 20.Rfd1+-) 1-0. TOPH (1950) - maziyar1373 (1760), Rated Blitz game, lichess.org, 2015. (=1.Nf3 (A00: Irregular Openings) 1...Nf6 2.b4 g6)

4.Bb2 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0).

4.Bb2 0-0 5.e3 d6 6.Be2 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5).

4.Bb2 0-0 5.g3 d6 6.Bg2 c6 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3 c6 6.Bg2 d6).

4.Bb2 d6 5.g3 0-0 6.Bg2 Nbd7 7.0-0 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3 d6 6.Bg2 e5 7.0-0 Nbd7).

4.Nc3 0-0 5.Ba3 d6 6.g3 (6.e3 Nc6+=) 6...e5 (6...Be6 7.e3+=) 7.Bg2= Re8 8.0-0 c6 (8...Nc6 9.Ng5=) 9.Rc1 (9.b5!?+=) 9...Be6= 10.d3 h6 (10...Nbd7 11.Ng5+=) 11.c5 (11.b5!?+=) 11...dc5= 12.bc5 (12.Ne5 Nbd7 13.Nd7 Nd7 14.bc5 Qa5=) 12...Qa5+= 13.Qa4 Qa4 14.Na4 Ba2 (14...e4 15.de4 Ne4 16.Rfd1+=) 15.Nc3= Bd5 16.e4 Be6 17.Rb1 (17.Ne5 Nbd7 18.Nf3 b5 19.cb6 ab6=) 17...Bc8+= 18.Rfd1 Na6 19.d4 (19.Rb3 Rb8+=) 19...ed4–/+ 20.Nd4 (20.Rd4 Nd7 21.Rc4 b6 22.cb6 Nb6–/+) 20...Nd7 21.Na4 Bf8 22.Rbc1 b5 23.Nc6? (better is 23.e5 Ne5 24.Nc6–/+) 23...ba4–+ 24.e5 Bc5 (24...Nac5 25.Ne7 Re7 26.Ba8 Re5 27.Bc6–+) 25.Bc5 Ndc5 26.Ne7 Re7 27.Ba8 Bb7 28.Rb1 (28.Bb7 Rb7 29.Rc2 Kg7–+) 28...Kg7 (28...Ba8 29.Rd8 Kg7 30.Ra8 Re5 31.Ra7–+) 29.Bb7 Rb7 30.Rb7 Nb7 31.e6 (31.f4 Nac5–+) 31...Kf8 32.Rd7 (32.ef7 Nbc5–+) 32...Nbc5 (better is 32...a3 33.Rf7 (33.Rb7?? a2–+) 33...Ke8 34.Rf3–+ (34.Rb7?? a2–+)) 33.Rf7 Ke8 34.Rf3 Nb3 35.Rc3 Nac5 36.f4 Ne6 37.Re3 Kd7 38.g4 Ned4 39.f5 gf5 40.gf5 Nf5 41.Rf3 Nfd4 42.Rf7 Kc6 43.Ra7 Nc5 44.Kf2 Kb6 45.Ra8 Kb5 46.Ke3 Nc2 47.Kf4? a3 48.Ra3–/+ Na3 49.Kg4 Kc6 50.Kh5 Kd6 51.Kh6+= Ke7 52.Kg5 Ne6 53.Kf5 Kf7 54.h4 Ng7 55.Kg5 Ne6 56.Kf5 Nd4 57.Ke4 Nab5 58.h5 Kg7 59.h6 ½–½. Burggraaf,Jan – Van der Veen,Jan (2090), Dieren op, 2000.

4.Nc3 d5 5.e3 0-0 6.Bb2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d5 6.Nc3).

4.d4 d5 5.e3 0-0 6.Bb2 c6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 c6 6.d4 d5).

4.d4 d5 5.e3 0-0 6.Nbd2 Nc6 7.b5 Na5 8.cd5 Nd5 9.Ba3 a6 10.ba6 b6 11.Rc1 Ba6 12.Ba6 Ra6 13.Qe2 Ra7 14.Bb2 Qd7 15.0-0 c5 16.Ba1 Rc7 17.dc5 Ba1 18.Ra1 Nc3 19.Qa6+= Rc5 20.Qb6 Rb5 21.Qa6 Nc6 22.Qa3 Qd3 23.Kh1 Ra5 24.Qc1 Rd8 25.a4 Ne5 26.Nb3 Rad5 27.Ne5 Re5 28.a5 Red5 29.Nd4 Ra8 30.Ra3 Rc5 31.Re1 Raa5 32.f4 Ra3 33.Qa3 ½–½. pierre – gbsalvio, internet, 2006.

4.d4 d5 5.e3 a5 6.b5 dc4 (6...0-0 7.cd5 Nd5 8.e4=) 7.Bc4+= Nbd7? (better is 7...0-0+=) 8.Bf7!+– Kf8 (8...Kf7 9.Ng5 Combination) 9.Bb2 (9.Ng5 Nb6+–) 9...Nb6 10.Bb3 a4 11.Bc2 Nfd5 12.Na3 Qd6 13.Qd2 Be6 14.Ng5 Bf6 (14...Bg8 15.Bd3+–) 15.Ne6 Qe6 16.0-0 (16.e4 Bg7+–) 16...Qg4 (16...Qd6 17.e4 Qb4 18.Qc1+–) 17.Bd1 Qe6 18.Bf3 g5 (18...Qd6+–) 19.e4 Nf4 20.d5 (better is 20.e5 Bg7 21.Bb7+–) 20...Qd6 21.Rfe1 Be5 22.Be5 Qe5 23.Rac1 g4 24.Qc3 Qc3 25.Rc3 h5 26.Bd1 Rc8 27.f3 1–0. Santasiere,Anthony – Piacenza,R, Coral Gables, 1967. (=1.Nf3 Nf6 2.b4 g6 3.c4 Bg7)

4.d4 d6 5.Nc3 Bf5 =.

4.d4 d6 5.e3 0-0 6.Bb2 a5 7.b5 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 g6 5.d4 Bg7 6.Nf3 0-0 7.c4).

4.d4 d6 5.h3 c5=+ 6.Bb2 cb4 7.Qa4 Bd7 8.Qb4= Nc6 9.Qd2 Ne4=+ 10.Qc1 d5 11.e3 dc4 12.Bc4 Rc8 13.d5 Qa5?? 14.Ke2=+ Nd4 15.Nd4= Qb4 16.Na3+= b5 17.Rb1 bc4 18.Nc6 Bb2 19.Nb4 Bc1 20.Rhc1 0-0 21.f3 Nd6 22.Nbc2 Rc5 23.e4 Ra5 24.e5+/– Nb5 25.Nb5 Bb5 26.a4 Ba6 27.Nb4+= Bb7 28.Rc4 Bd5 29.Rc7 Ba8 30.Nd3 Ra4 31.Re7 Bd5 32.Nc5 Ra2 33.Ke3 Rc8 34.Nd7 Bc6 35.e6+/– fe6 36.Nf6 Kf8 37.Rh7 Rd8 38.Rc1 Rd6 39.Kf4 Ra5 40.Ne4 Rd7 41.Rd7 Bd7 42.Rc7 e5 43.Kg5+– Be8 44.Kh6 Ra6 45.Ng5 Bc6 46.Ne6 Kg8?? 47.Rg7 Kh8 48.Rf7 (48...Bf3 49.Rf8#) 1–0. Andersson,Lars H – Gustavsson,Hans, corr SSKK 1–442, 1992.

4.c4 0-0 5.e3 d5 6.Nbd2 c6 7.Bd3 Nbd7 8.0-0 Qc7 (8...e5 9.de5 Ng4 10.Bb2=) 9.Bb2+= Re8 10.e4 de4 11.Ne4 Ne4 12.Be4 Nf6 13.h3?? (better is 13.Bd3=) 13…Ne4–+ 0–1. Pies,Gerhard – Birnkott,Manfred (1870), Leverkusen op, 2004. (=1.Nf3 Nf6 2.b4 g6 3.d4 Bg7)

4.c4 a5 5.ba5 Nc6 6.Nc3 d5 7.cd5 Nd5 8.Bb2 0-0 9.e4 Nc3 10.Bc3 Bg4 d4 draws heavy fire 11.Rb1 (11.e5 Bf3 12.Qf3 Nd4=) 11...Bd4 12.Bd4 Bf3 13.Qf3 Qd4 (worse 13...Nd4 14.Qc3=) 14.Qe3 (14.Bb5 Ne5 15.Qe2 c6–+) 14...Qa4 15.Bb5 (better 15.a6!? ba6 16.Rc1–/+) 15...Qa5–+ 16.Qd2 Qd2 17.Kd2 Ra2 18.Kc3 (18.Ke3 Ra3 19.Kf4 Nd4–+) 18...Rf2 19.Bc6 bc6 20.Rb7 Rc8 21.Rd1?! (21.Rg1–+) 21...Rg2 22.Rd7 Kf8 23.Rdc7 Rc7 (23...Rh2? 24.Rc8 Kg7 25.Re7+–) 24.Rc7 Rh2 25.Kd3 h5 26.Rc6 h4 27.Ke3 h3 28.Rc1 g5 29.Rg1 (29.e5 Rg2 30.Rc8 Kg7–+) 29...Rg2 30.Rg2 (30.Rh1 g4 31.Kf4–+) 30...hg2 31.Kf2 Kg7 32.Kg2 Kf6 33.Kh3 Ke5 34.Kg4 f6 35.Kf3 e6 (35...e6 36.Ke3 g4–+) 0–1. aimascar (2855) – pierred (2770), net–chess.com, 2014. (=1.Nf3 Nf6 2.b4 g6 3.d4 Bg7)

4.c4 d6 5.Nc3 c6 (5...0-0 6.a3=) 6.e4 (6.Bg5 h6 7.Bf6 Bf6=) 6...0-0 7.Be2 (7.Bg5 c5=) 7...a6 (7...c5 8.Rb1=) 8.0-0+= Nbd7 (8...c5 9.Rb1+=) 9.Rb1 e5 (9...c5 10.bc5 dc5 11.Bb2+=) 10.d5 c5 11.a3 b6 (11...Qc7 12.Qa4+=) 12.Qa4+– Nb8 (12...Rb8 13.h3+–) 13.bc5 bc5 14.Rb2 Bd7 (14...Nh5 15.Bg5 Qc7 16.Rfb1+–) 15.Qc2 Bc8 (15...Nh5 16.Bg5 f6 17.Be3+–) 16.Bd2 h6 (16...Bg4 17.Rfb1+–) 17.Rfb1 Nbd7 18.Qa4 Ne8 19.Bd3 Ndf6 20.Qc6 Bd7 21.Qb6 Qe7 (21...Qc7 22.a4+–) 22.Qa5 (22.Qb7 Qd8+–) 22...Nh7 (22...Bc8 23.Na4 Nd7 24.Rb3+–) 23.Rb7 (23.Na4 Qd8 24.Nb6 Ra7+–) 23...Nef6 (23...Qd8!? 24.Qd8 Rd8+–) 24.Na4+– Rfd8 (24...Qd8 25.Nb6 Bc8 26.Nc8 Qc8 27.R7b6+–) 25.Nb6 Nf8? (25...Rab8 26.Qa6 Rb7 27.Qb7 Nf8+–) 26.Na8 Ra8 27.R1b6 1–0. kamret (2140) – Fetzer (1935), GameColony.com, 2003.

4.e3 0-0 5.Nbd2 a5 6.b5 d6 7.Be2 Nbd7 8.0-0 e5 9.c4 ed4 10.ed4 Re8 11.Re1 Nb6 12.Nf1 Be6 13.Ne3 Ng4 14.Qc2 Ne3 15.Be3 d5 16.c5 Nc4 17.Bc4 dc4 18.Rad1 Qd5 19.Rd2 (19.Rc1 a4=) 19...Bf5+= 20.Qc1 Be4 21.Ne5 f6 (21...Bg2!? 22.Qc4 Rad8+=) 22.f3+= c3 23.Qc3 fe5 24.fe4 ed4? (better is 24...Qe4 25.d5 Qa4+=) 25.Bd4+– (25.ed5 dc3 26.Rde2 Rad8–/+) 25...Bd4 26.Qd4 (26.Rd4 Qe5+–) 26...Qd4+/– 27.Rd4 Re5 28.Rc1 Rf8 29.Rcc4 Rf4 30.a4 Kf7 31.g3 Rg4 32.Rd7 Re7 33.Re7 Ke7 34.Kf2 Rg5? (34...c6 35.Ke3+–) 35.Ke3 (35.c6 b6 36.Rd4 Re5 37.Rd7 Kf6+–) 35...h5? (better is 35...c6+–) 36.c6 bc6 37.Rc6 Kd7 38.Ra6 Rc5 39.Ra5 Rc2 40.h4 Rg2 41.Kf3 Ra2 42.Ra6 (42.Ra6 Ke7 43.Rg6 Ra4 44.Rh6+–) 1–0. Santasiere,Anthony – Keltz, Ventnor City, 1945. (=1.Nf3 Nf6 2.b4 g6 3.d4 Bg7)

4.e3 0-0 5.Bd3 d6 6.0-0 Bg4 (6...e5 7.de5 de5 8.e4=) 7.h3+= Bf3 (7...Be6 8.e4+=) 8.Qf3 (< 8.gf3 e5=+) 8...c6 (8...d5 9.c4+=) 9.c4 Nbd7 10.Bb2 Qb6 11.Bc3 a6 (11...e5 12.a4+=) 12.a4 (12.c5 Qc7+=) 12...Qc7 13.a5 e5 (13...d5 14.Nd2+=) 14.d5 Rfe8 (14...cd5 15.cd5 e4 16.Be4+/–) 15.e4+/– cd5 (15...Rec8 16.dc6 bc6 17.Rd1+/–) 16.cd5 (16.ed5? e4 17.Be4 Ne4 18.Bg7 Kg7–+) 16...Nd5? (better is 16...Rac8 17.Rc1 Qd8+/–) 17.ed5+– e4 (17...f5 18.Rc1+–) 18.Be4 Re4 (18...Bc3 19.Rc1 Qc4 20.Nc3 f5+–) 19.Qe4 Bc3 20.Rc1 Nf6 (20...Nc5 A) < 21.Nc3 Ne4 22.Ne4 Qd8=+; B) 21.bc5?! Ba1 22.Nd2 B1) 22...Qa5? 23.Nc4 (23.cd6?! Bf6 24.Nc4 Qd8=) 23...Qa4 24.Qb1+/–; B2) 22...Bg7+=; C) 21.Rc3 Qa5 22.Qg6 fg6 23.Ra5+–) 21.Qf3 (21...Re8 22.Nc3+–; 21.Nc3 Ne4 22.Ne4 Qd8–/+) 1–0. kamret (2165) – lennart (1775), GameColony.com, 2003.

4.e3 b6 5.Bd3+= Bb7 6.0-0 d6 (6...0-0 7.Bb2+=) 7.Bb2 (7.c3 a5+=) 7...0-0 8.Nbd2 Nfd7 (8...Nbd7 9.a3+=) 9.e4 (9.c4 c5+=) 9...c5 10.c3 Ba6 (10...a6 11.Qb3+=) 11.b5 Bb7 12.Qe2 Re8 (12...a6 13.Rfb1+=) 13.Rfb1 Nf8 (13...Qc7 14.a4+=) 14.Qe3+/– cd4 (14...a6 15.ba6 Na6 16.Bb5+/–) 15.cd4 d5 16.e5 a6 17.a4 ab5 (17...Ne6 18.Rc1+/–) 18.ab5 Ra1 19.Ra1 Nbd7 20.Ra7 (20.Nb3 Ne6+/–) 20...Qb8 21.Ra3 Rc8 22.Ra1 f6? 23.e6+– Nc5 24.dc5 bc5 25.Rb1 Qd6 26.Re1 d4 27.Qe2 (27...Bd5 28.Bc4+–) 1–0. b4_player (2250) – fonix79, GameColony.com, 2003.

4.e3 c6 5.Be2 0-0 6.0-0 a5 7.b5 cb5 8.Bb5 d5 9.c4 dc4 10.Bc4 Nc6 11.Nc3 Bg4 12.h3 Bf3 13.Qf3 (worse 13.gf3 Rc8 14.Qa4 Qd7–/+) 13...Rc8 14.Bb5 Nd4? (better 14...e5 15.Ba3 Re8=) 15.ed4+– Qd4 16.Bb2 Qb4 (16...Ne4!? 17.Na4 Qb4 18.Bg7 Kg7 19.Qe2+–) 17.Rab1 Nh5? (17...Rfd8+–) 18.Nd5 Qd6 (18...Qh4 19.g3 Qh3 20.Ne7 Kh8 21.Nc8 Qc8 22.Rfc1+–) 19.Ba3 Rc5 20.Bc5 Qc5 21.Rfc1 Qd6 22.Rc7 e6 23.Ne7 Kh8 24.Rb7 Nf4 25.Nc6 e5 26.Bc4 f5 27.Rd1 Qc5 28.Rdd7 Nh5 29.Qd5 (better 29.Qh5! Qc4 (29...gh5?? 30.Rg7 Rf7 31.Rgf7 Qf2 32.Kf2 h4 33.Rh7) 30.Qg5 Qg8 31.Rg7 Qg7 32.Rg7 Kg7 33.Qe7 Kg8+–) 29...Qa3 30.Rg7! Qc1 (30...Ng7 31.Qe5 A pinning theme) 31.Bf1 Ng7 Plans Qg5 32.Qd6 Re8 (32...h5 33.Qf8 Kh7 34.Qg7) 33.Qf6 Rg8 (33...Qf1 34.Kf1 Rg8 35.Nd8 h6 36.Qg6 Rd8 37.Qg7) 34.Nd8 (34.Nd8 Qc7 35.Rc7 h6 36.Qg6 Rd8 37.Qg7) 1–0. wesolyPolak (1830) – NN, GameColony.com, 2002.

4.e3 d5 5.Be2 0-0 6.c4 dc4 7.Bc4 c6 8.0-0 Nbd7 9.Qc2 Nb6 10.Bd3 Nfd5 11.a3 (11...a5 12.ba5 Ra5 13.Bd2+=). kamret (2225) – NN, GameColony.com, 2003.

4.e3 d6 5.Bd3 0-0 6.0-0 Re8 7.e4 e5 8.de5 de5 9.a3 Nd5 (9...Nc6 10.Nbd2=) 10.Bg5 Qd6 (better is 10...Qd7+=) 11.Bb5+– c6 (11...Rf8 12.ed5 e4 13.Nd4+–) 12.Be2 (12.ed5?! e4 13.dc6 Qd1 14.Rd1 bc6=) 12...Qc7 (12...a5 13.ba5 (13.ed5?! e4 14.Nd4 ab4+/–) 13...Qc5 14.ed5+=) 13.ed5 e4 (13...cd5 14.Qd2+–) 14.Nd4 Qe5 (14...cd5 15.Re1+–) 15.Be3 f5 16.Nb3 f4 17.Bd4 Qg5 18.Kh1 (18.dc6 f3 19.Bc4 Be6 20.Be6 Re6+–) 18...Bf8 (18...cd5 19.Bg7 Kg7 20.Nc3+–) 19.dc6 Nc6 20.Bc3 Be6 (20...b5 21.N1d2 Qf5 22.a4+–) 21.N1d2 (21.Nd4 Bd5 22.Nc6 bc6+–) 21...Bd5 (21...Qd5 22.Re1 b5 23.f3+–) 22.f3 e3 (22...ef3 23.Nf3 Qf5+–) 23.Ne4 Qf5 (23...Re4 24.fe4 Bb3 25.cb3+–) 24.Nf6 Kf7 25.Qd5 (25.Qd5 Qd5 26.Nd5+–) 1–0. Speisser,Patrick (2120) – Zaunerciks,Ilmars (1815), IECG, 2004.

4.Bg5 0-0 5.e3 h6 6.Bf6 Bf6 7.Bd3 d6 8.0-0 Nd7 9.c3 e5 (9...c6 10.Nbd2=) 10.e4 b6 11.Qa4 Bb7 12.d5 Bg7 (12...a5 13.b5=) 13.Ba6+= Ba6 14.Qa6 Nf6 (14...f5 15.Nbd2+=) 15.Nbd2 Qd7 16.Rfe1 c6 (16...Nh5 17.a4+=) 17.dc6 Qc6 18.c4 Rfc8 19.a4 Rc7 20.Rad1 Bf8 (better is 20...Nd7+=) 21.b5?? (21.Rb1 Rac8+=) 21...Qd7?? (better is 21...Qe8–+) 22.a5+/– Rac8 (22...Qc8!? 23.Qc8 Rac8 24.ab6 ab6+=) 23.ab6+– ab6 24.Qb6 Qg4 25.Ne5! Qh4? 26.Nef3 Qh5 27.Qd4 Ng4 28.b6 Rb7 29.Rb1 Rcb8 30.Rb5 f5 31.ef5 gf5 32.Qd5 Rf7 33.Ne4! Rd8 34.h3 Ne5 35.Nf6 (35...Kh8 36.Nh5 Nf3 37.gf3 Rg7 38.Ng7 Bg7 39.b7 Kh7 40.b8R h5 41.Qf5 Kh8 42.Rd8 Bf8 43.Re7 d5 44.Qf8) 1–0. market (2265) – Cerati (1980), GameColony.com, 2002.

4.Bg5 h6 5.Bf6=+ Bf6 (5...ef6 6.e4=+) 6.e4 d6 7.a4 (7.Nc3 Bg4=) 7...Bg4=+ 8.Qd3 (8.Nc3 Nc6 9.Bb5 0-0 10.Bc6 bc6=+) 8...0-0 (8...Bf3 9.Qf3 Bd4 10.Bc4–/+) 9.Nbd2 Bg7 (9...e5 10.de5 de5 11.h3 Bf3 12.Qd8 Rd8 13.Nf3=+) 10.Ra3 (10.h3 Bf3 11.Nf3 c5 12.bc5 dc5=+) 10...Nd7 (10...e5 11.d5=+) 11.Qc4 (11.Be2 a5 12.b5 e5 13.de5 de5=+) 11...Nf6 (better 11...c5 12.bc5 dc5–/+) 12.Nh4? White prepares the advance d5 (12.Bd3 d5 13.ed5 Nd5=+) 12...Kh8 (better 12...d5 13.ed5 Nd5–+) 13.h3–/+ Be6 (13...Bc8 14.Qd3–/+) 14.Qe2 (14.Ng6!? Kg8 15.d5 fg6 16.de6=) 14...a5 (14...c6 15.a5–/+) 15.b5=+ Nh7 (15...d5 16.e5 Nd7 17.Qe3=+) 16.d5 (16.Qe3 c6=) 16...Bd7=+ 17.g4 (17.Nhf3!?=+) 17...e6–/+ 18.Bg2?? (better 18.de6 Be6 19.Nhf3–/+) 18...Qh4–+ 19.Nf3 (19.0-0 ed5 20.ed5 Rfe8–+) 19...Qf6 20.h4 (20.0-0 Ng5–+) 20...b6 (20...ed5 21.0-0 Rfe8 22.Re3–+) 21.c3 (21.de6 Be6 22.g5 Qb2–+) 21...Qe7 (21...ed5!? 22.g5 Qf4 23.Qe3 Qe4 24.Qe4 de4 25.Nd2–+) 22.c4 (22.g5 hg5 23.Ng5 Ng5 24.hg5 Kg8–+) 22...ed5 23.cd5 Bg4 24.Qc4 Rac8 (24...f5 25.Re3 f4 26.Re2–+) 25.Nd4 Qe5 26.Rd3 (26.Nc6 Qf4 27.f3 Bd7–+) 26...f5 27.Nc2 (27.f4 Qf4 28.Ne6 Qe5–+) 27...f4 (better 27...fe4 28.Rd4 Nf6 29.Qb3–+) 28.f3 Bd7 29.Rd2 Nf6 30.Ke2 (30.Nd4 Kh7–+) 30...Nh5 31.Kd3 Be8 (better 31...Ng3 32.Rc1–+) 32.Bh3 Ng3 33.Rg1 (33.Rhh2 Rd8–+) 33...Rd8 (better 33...Ra8 34.Nd4–+) 34.Qc7 (34.Nd4 Bd7 35.Be6 Kh7–+) 34...Bf7 (better 34...Bd7 35.Bd7 Rd7 36.Qc4–+) 35.Rdg2 (35.Qc4–+) 35...Bd5! 36.Re1 (36.ed5 Qd5 Decoy) 36...Bb3 (better 36...Bc4! 37.Kd2 Qc3 38.Kd1 Be2 39.Ree2 Qc7 40.Ne1–+) 37.h5 Ba4 38.hg6 Qb5 39.Kd2 Bc2 (better 39...d5 40.e5 d4 41.Bg4–+) 40.Qc2 (40.Kc2 Qb2 41.Kd1 Qb3 42.Kc1 Qf3–+) 40...Qb4 41.Kd1 Rc8! 42.Bc8 (42.Qc8 Qc3 Double attack (42...Qc3 Decoy); 42.Bc8 Qc3 Double attack (42...Qc3 Decoy)) 42...Qd4 (42...Bc3 43.Ba6 Be1 44.Qc1–+) 43.Rd2 (43.Kc1 Qc3 44.Qc3 Bc3 45.Rd1 Rc8 46.Rc2–+) 43...Qa1 44.Qc1 Qc1 45.Kc1 Rc8 46.Rc2 Rc2 47.Kc2 Be5 48.Kd3 (48.Rb1 Kg7 49.Rb6 h5–+) 48...Kg7 49.Rb1 h5 50.Rb6 (50.Kc4 Kg6 51.Rg1 h4–+) 50...Kg6 51.Rb2 (51.Ra6 h4 52.Ra5 h3–+) 51...h4 (better 51...Bb2 52.Kc4 h4–+) 52.Rh2 Kg5 53.Kc4 Nf1 54.Rg2 (54.Rh3–+) 54...Kh5 55.Rg1 Ne3 56.Kb3 Bd4 (better 56...h3 57.Rh1 Kh4 58.Rg1–+) 57.Ka4 (57.Rh1 Bf6–+) 57...Bc3 (better 57...h3 58.e5 de5–+) 58.Kb3 Bd4 59.Ka4 h3 60.Kb3 (60.Kb5 Kh4 61.Rg6 h2 62.Rd6 Bg7–+) 60...Ng2 (60...Kh4 61.e5 de5 62.Rh1–+) 61.Rh1 (61.Rd1 h2 62.Rh1 Bg1–+) 61...Kh4 62.Kc4 Be5 63.Kd3 a4 64.Ke2 a3 65.Kf2 Bd4 (65...Bd4 66.Ke2 a2 67.e5 Be5 68.Ra1 Ba1 69.Kf2 Ne3 70.Ke1 Bc3 71.Ke2 a1Q 72.Kd3 Kg3 73.Ke4 Qb1; 65...a2 66.Rc1 Bd4 67.Kf1 Bb2 68.Kf2 Bc1 69.Ke2 a1Q 70.Kf2 Be3 71.Ke2 Qa6 72.Kd1 Qd3) 0–1. rhometal – alexp, net–chess.com, 2019.

4.Bb2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3).

4.d4 0-0 5.Bd3 d5 6.0-0 Bg4 7.h3 Bd7 8.Nbd2 Re8 9.c4 e6 10.Rb1 Nc6 11.b5 Ne7 12.Ne5 c6 13.bc6 Bc6 14.Nc6 bc6 15.Ba3 Nf5 16.Qa4 Qc7 17.Rfc1 Ne4 18.Ne4 de4 19.Be4 Rab8 20.Qc6 Qc6 21.Bc6 Rec8 22.Bd7 Rd8 23.Rb8 Rb8 24.c5 Ne7 25.c6 Nc8 26.c7 Ra8 27.Bc6 1–0. mtrh – Virgularia, internet, 2002.

4.d4 0-0 5.Bd3 d6 6.0-0 Nbd7 7.Bb2 c5 8.bc5 dc5 9.c3 Qc7 10.Nbd2 b6 11.e4 e6 12.e5 Nd5 13.Ne4 Bb7 14.Nfg5 Ne7 (14...Nf4!? 15.Bc1 Nd3 16.Qd3 Bd5=) 15.Nd6+= Ne5? (better is 15...h6 16.Nb7 Qb7+=) 16.de5+– Be5 17.Nb7 Bh2? (better is 17...Qb7 18.Be4 Nc6+–) 18.Kh1 Bf4 19.Qg4 (better is 19.Nh3!? Be5 20.Be4 Rab8+–) 19...h5 (19...Bg5!? 20.Qg5 Qb7+–) 20.Qh4 Bg5 21.Qg5 Qb7 22.c4 Kh7 (22...f5+–) 23.Qh5 (23.Qh5 Kg8 24.Qh8) 1–0. Grosse_Gehling,Thomas (1810) – Jonas,Rainer (1970), Bonn–Bad Godesberg, 2013. (=1.Nf3 Nf6 2.b4 g6 3.e3 Bg7)

4.d4 0-0 5.Bd3 d6 6.0-0 Nbd7 7.e4 c5 8.bc5 dc5 9.e5 Nd5 10.Be4 e6 11.Ba3 Re8 12.Bc5 Nc5 13.dc5 Qc7 14.Qd4 Bd7 15.c4 Nf4 16.Nc3 Rad8 17.Rab1 Bc6 18.Qe3 Bh6 19.Bc6 Nh3 20.gh3 Be3 21.Be8 Bf4 22.Nb5 Qa5 23.Nd6 Re8 24.Ne8 Qc5 25.Rb7 Be5 26.Rd1 Qc8 27.Rdd7 Qe8 28.Ne5 f6 29.Rg7 Kf8 30.Ng4 Qa4 31.Rbf7 Ke8 32.Nf6 Kd8 33.Rg8 1–0. themonkey (1945) – ararat (2105), GameColony.com, 2002.

4.d4 d5 5.Be2 0-0 6.c4 c6 7.0-0 Nbd7 8.Nbd2 Re8 9.Bb2 e6 10.a3 a6 11.c5 Qc7 12.Qc2 e5 13.de5 Ne5 14.Be5+– Re5 15.Ne5 Qe5 16.Nf3 Qe8 17.Nd4 Ne4 18.Bd3 Ng5 19.Rfe1 Ne6 20.Rad1 Qd7 21.Ne6 Qe6 22.e4 d4 23.e5! Qg4 24.Re4 Qg5 25.f4 Qh6 26.Rd4 Bg4 27.Be2 Bf5 28.Qd2 (28...Re8 29.Rd8+–) 1–0. guest2034 – guest143, ICC, 2003.

4.ba5 Bg7 5.Bb2 0-0 6.Bg2 Ra5 7.0-0 d6 (7...d5 8.d3=) 8.c4 e5 9.d3 Nc6 10.Nbd2 (10.Qd2 Bd7=) 10...Bg4 11.Re1 h6 12.Qb3 b6 13.Bc3 Ra7 14.Qb2 Re8 15.a4 Nd7 16.Nb3 Kh7 (16...Qa8 17.Nfd2=) 17.Nfd2 Nd4 (17...Ne7 18.a5=) 18.Nd4+= ed4 19.Bd4 Bd4 20.Qd4 Qg5 (20...Be2!? 21.Nb3 Nb8+=) 21.Ne4+/– Qe5 22.Qe5 Re5 23.Nc3 Raa5 (23...Nf6 24.Nb5 Ra5 25.h3+–) 24.f3 (24.h3 Be6 25.g4 Rec5+–) 24...Bf5 (24...Be6 25.d4 Rh5 26.d5+–) 25.e4 Be6 26.d4 Rh5 27.g4 Rh4 28.d5 Bg4 29.fg4 Rg4 30.Nb5 Ne5 31.h3 Rg5 32.Kh2 Nc4 33.Nc7 Rc5 34.Nb5 h5 35.Nd4 Ne5 36.Nf3 Rg2 37.Kg2 Rc2 38.Kg3 Rc3 39.Rf1 g5 40.Kg2 (40.Kg2 Kg7 41.Ne5 de5 42.d6 Rc2 43.Rf2 Rf2 44.Kf2+–) 1–0. Mueller,Ralf (2285) – Klaus,Ingo, Schwaebisch Gmuend, 1995. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

4.b5 a4 5.Bg2 c6 6.Na3 Bg7 7.Rb1 0-0 8.0-0 d5 9.d3 Nbd7 10.c4 e5? (10...c5 11.Qc2+=) 11.Qc2 (11.bc6!? bc6 12.cd5 Nd5 13.Bd2+–) 11...Re8 (11...e4 12.Nh4=) 12.bc6+– bc6 13.cd5 cd5 14.Nb5 Ba6 15.Nd6 Re6 (15...Re7!?+–) 16.Nf7! Qf8 (16...Kf7 17.Ng5 Double attack) 17.Bh3 Ree8 (17...Qf7?? 18.Ng5 Rb6 19.Nf7 Rb1 20.Ne5 Ne5 21.Qb1+–) 18.N7g5 Qd6 19.Qc3 (19.d4 h6 20.Qg6 hg5 21.Ng5 Nf8 (21...Be2? 22.Qf7 Kh8 23.Qe8 Ne8 24.Nf7 Kh7 25.Nd6 Nd6 26.Bd7+–) 22.Qf7 Kh8 23.Qe8 Ne8 24.Nf7 Kg8 25.Nd6 Nd6 26.de5 Be5+–) 19...Bf8 (better 19...Rac8 20.Qa3 Bf8 21.Qa4 h6+=) 20.Bg2 (better 20.Nh4+–) 20...h6= 21.Nh3 g5 22.Nhg5 hg5 23.Bg5 Nh7 24.Qd2 Qg6 25.h4 (25.Be3 d4 26.Nd4 ed4 27.Bd5 Kh8 28.Bd4 Bg7 29.Bg7 Qg7 30.Ba8 Ra8+–) 25...Rab8 26.Qa5 1–0. Tashev,Aleksandar (2160) – Koutsogiannopoulou,T (1825), Silver Lake Open, 2018. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 a4)

4.b5 a4 5.Bg2 d5 6.0-0 Nbd7 7.Bb2 e6 8.Na3 Bb4 9.c4 Qe7 10.Nc2 Bd6 11.cd5 ed5 12.Rc1 0-0 13.d3 Nb6 14.Ncd4 a3 15.Ba1 Ra4 16.Qc2 Re8 17.Rfe1 Bg4 18.h3 Bf3 19.Nf3 Nfd7 20.e4 de4 21.de4 Rc4 (worse 21...Re4 22.Qc3 Re1 23.Re1+-) 22.Qb3 Nc5 e4 becomes the focus of attention (22...Rb4 23.Qa3 A) 23...Re4?? 24.Qc3 Re1 25.Re1+- (25.Qe1?! Qe2+=); B) 23...Rb5+/-) 23.Qa3+/- Rc1 (23...Ne4?? 24.Qb2 f6 25.Rc4 Nc4 26.Qd4+-) 24.Qc1 Nca4 (24...Nbd7 25.Qc2 f6 26.Bd4+/-) 25.Qh6 Qf8 26.Qg5 White prepares e5 26...Qe7 27.Bf6 Qf8 28.e5 Bb4 29.Rf1 Nc5 (29...Nd7!?+/-) 30.Nh2+- Ne6 31.Qc1 (31.Qh4 Ra8+-) 31...Qc5 (31...Ra8 32.Bb7 Ra2 33.Nf3+/-) 32.Ng4 Bc3 (better 32...Qc1 33.Rc1 h5+-) 33.Qh6?? (33.Bb7 Rb8 34.Bc6 Nd4+-) 33...Bd4?? (33...Qb5 34.Qe3 Qb2 35.Bb7 Rb8 36.Nh6 Kf8+-) 34.Bg7 (34.Rc1 Qb5 35.Rc7+-) 34...Nd7= Can e5 get defended? 35.Bf6 Qb5 (35...Ne5 36.Be5 Be5 37.Qc1 Qb5 38.a4=) 36.Qh4 (better 36.Rd1!? Qc5 37.Bb7+/-) 36...h5= (36...Be5? 37.Be5 Ne5 38.Nf6 Kf8 39.Ne8 Ke8 40.Qh7+-; 36...Ne5?! 37.a4 Qb2 38.Ne5 Be5 39.Be5 Qe5 40.Bb7=) 37.Ne3? (better 37.a4 Qb2 38.Kh2=) 37...Nf6-+ (37...Be5?! 38.Be5 Qe5 39.Bb7=+) 38.ef6 Qe5 (38...c6 39.Qe4-+) 39.Nd5? (better 39.Bb7!? Be3 40.fe3 Qe3 41.Kh1-/+) 39...c6-+ 40.Ne7 (better 40.Ne3-+) 40...Kh7 41.Rb1 Nc5 (better 41...Ra8 42.Be4 Ra2-+) 42.g4?? (better 42.Rd1 Rd8 43.Bf3-+) 42...Nd3 43.gh5 (43.Rf1 Qf4 44.Nf5 gf5 45.Qh5 Kg8 46.Qf5 Qf5 47.gf5 Nf2 48.Rb1 Nd1 49.Kf1 Ne3 50.Kf2 Nf5 51.Kf3-+) 43...Bf2 44.Qf2 Nf2 45.hg6 fg6 46.Rb7 Kh6 47.f7 (47.Kf2 Qf6 48.Bf3 Re7 49.Re7 Qe7-+) 47...Rf8 (better 47...Rd8 48.Rb3 Qe1 49.Kh2 Qe7 50.Rf3-+) 48.Nc6 (48.Kf2 Rf7 49.Kg1 Re7 50.Re7 Qe7 51.a3 Qe3 52.Kh2 Kg5 53.h4 Kh4 54.Bf1 Qf2 55.Bg2 Qf4 56.Kg1 Kg3 57.Bh3 Qf2 58.Kh1 Qh2) 48...Qg3 49.Rb3 Nh3 50.Kh1 Qe1 51.Kh2 Nf4 52.Rg3 Kg7 53.Nd4 (53.Nd8 Rh8 54.Rh3 Rh3 55.Bh3 Qf2 56.Kh1 Qf3 57.Kg1 Ne2 58.Kh2 Qg3 59.Kh1 Qh3) 53...Rh8 54.Bh3 (54.Rh3 Nh3 55.Ne6 Kf7 56.Nd8 Kg8 57.Bd5 Kg7 58.Ne6 Kf6 59.Kg2 Qf2 60.Kh1 Nf4) 54…Rh3 (54...Rh3 55.Rh3 Qf2 56.Kh1 Qg2; 54...Qf2 55.Kh1 Rh3 56.Rh3 Qg2) 0-1. Bocharov,D (2530) - Antipov,M2 (2585), World Blitz, 2018. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5)

4.b5 b6 5.c4 Bg7 6.Bb2 (6.Bg2 Bb7=) 6...a4 (6...0-0 7.Bg2=) 7.Bg2 Bb7 8.0-0 0-0 9.d3 d6 10.a3 Nbd7 11.Nc3 Nc5 12.Rb1 (12.d4 Nb3 13.Rb1 d5 14.cd5 Bd5 15.Nd5 Qd5+/-) 12...Nb3 (12...e5!?=) 13.Na4!+/- Ra4 14.Qb3 Ra8 15.Bc3 d5 (15...e5 16.Rbe1+/-) 16.Ra1 dc4 17.Qc4 Bd5 18.Qb4 Qd6 (18...c5 19.bc6! Bc6 20.Be5+/-) 19.Qd6 cd6 20.Rfc1 Rfc8 21.Bb4 Nd7 22.Rab1 Rc1 (22...Ba2!? 23.Rc8 Rc8+=) 23.Rc1+/- Bb2 (23...Nc5 24.Nd2 Bg2 25.Kg2+/-) 24.Rc7+- Nf6 25.Re7 Ba3 (25...Kf8 26.Bd6 Ba3 27.Ba3 Ra3 28.Rc7 Ra1 29.Bf1 Bf3 30.ef3+-) 26.Ba3 (better 26.Bc3!? Nh5 27.Ng5 Bg2 28.Kg2+-) 26...Ra3+/- 27.h3 Ra1 28.Kh2 Rb1 29.Nd4 Bg2 (29...Rb4 30.e3+-) 30.Kg2 Nd5 31.Rd7 Nc3 (better 31...Rb4 32.e3 Rb2+-) 32.Rd6 Nb5 (32...Rb4 33.e3 Rb2 34.Rc6+-) 33.Nb5 (better 33.Rb6!? Nc3 34.Rb1 Nb1+-) 33...Rb5 34.e4 Rb1 35.h4 (35.Rd8 Kg7+-) 35...h5 36.Kf3 b5 37.Kf4 Kf8 38.d4 Rf1 (38...b4 39.Rb6+-) 39.f3 Rd1 (39...Kg7 40.Rb6 Rb1 41.Rb7+-) 40.d5 b4 41.Rb6 Rb1 42.Ke5 b3 (42...Kg7 43.Kd6 Rb3 44.Ke7 Rf3 45.Rb4+-) 43.d6 (better 43.Kf6 Ke8+-) 43...Ke8 (better 43...Kg7+-) 44.f4 b2 45.Rb7 Kd8 (45...Re1 46.Rb2 f5+-) 46.Kf6 (46.Rf7 Rc1 47.Rb7 b1R 48.Rb1 Rb1=) 46...Rd1 (46...Re1 47.Rb2 Re4 48.Kf7+-) 47.Rb2 Rd6 48.Kf7 Rd3 49.Kg6 (better 49.Rg2!? Kd7+-) 49...Rg3 50.Kh5 Rf3 (50...Rg7 51.Rb6+-) 51.Kg4 Rf1 52.Rb7 Rg1 53.Kf5 Rh1 54.Rh7 1-0. timofeevich (2130) - christopheh (1955), Rated Classical game, lichess.org, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5)

4.b5 b6 5.Bb2 Bg7 6.Bg2 Bb7 7.0-0 d6 8.d3 0-0 9.Nbd2 e5 10.a4 Nbd7 11.e4 Qe7 12.Re1 Rfe8 13.Nc4 Rad8 14.Ne3 Nc5 15.c4 Bc8 16.h3 h6 17.Kh2 Be6 18.Ng1 Nh5 19.Bf3 Nf6 20.Ne2 Qd7 21.Bg2 Nh5 22.Nc3 Nf6 23.Ra2 Rf8 24.Bc1 Qe7 (24...Nh7 25.Ncd5+=) 25.f3 Rd7 26.Rf2 Nh7 (26...h5 27.Ned5 Bd5 28.ed5+=) 27.Ncd5+/- Bd5 28.Nd5 Qd8 29.h4 (29.f4 Nf6+/-) 29...f5 30.Bh3 Rdf7 31.h5 gh5 32.Bf5 h4 33.Rg2 h3 (33...hg3 34.Rg3 Nf6 35.Reg1 Nd5 36.cd5+- (36.ed5?! Rf5 37.Rg7 Kh8=)) 34.Rgg1 Ng5 (34...Nf6 35.Bg6 Rd7 36.Rh1+/-) 35.f4+- Nge6 36.Bh3 ef4 37.gf4 Nf4 38.Bf4 Rf4 39.Nf4 Rf4 40.Qh5 Qf8 (40...Qf6 41.Rg3 Kf8 42.Reg1+/-) 41.Rg2 Rf2 42.Bf5 (better 42.Reg1!? Qf4 43.Kh1 Rg2 44.Rg2+/-) 42...Rg2+= 43.Kg2 Nd3 44.Rf1 Qe7 45.Qg6 Qg5 46.Qg5 hg5 47.Be6 Kh7 48.Bf5 Kg8 49.Rd1 (49.Bd7 Nc5 50.Bc6 Na4 51.Bd5 Kh7=) 49...Nf4 (49...Nc5!?=) 50.Kf3+= Bh6 (50...Kf7!?+=) 51.e5! de5 52.Rd7 Bf8 53.Rc7 Bc5 (53...Kh8 54.Kg4+-) 54.Rb7 (better 54.Rc5 Kf7 55.Rc6+-) 54...Bd4 55.Kg4 Ne2 56.Kg5 Nf4 (56...Kf8 57.Bg6 Nf4 58.Rf7 Kg8 59.Kf6 Ng6 60.Kg6+-) 57.Bg4 (better 57.Rd7 Bf2 58.Kf6 Nh5 59.Ke5 Bg3 60.Ke6 Ng7 61.Kf6 Nf5 62.Kf5+-) 57...Nd3 58.Kg6 Nf4? (better 58...Kf8+-) 59.Kg5 (better 59.Kf6 e4 60.Kf5+-) 59...Nd3 60.Be6 Kf8 61.Kf5 Nc5 (61...Ke8!?+-) 62.Rb6 Na4 (62...Ke7 63.Bd5 Kd7 64.Rg6 Na4 65.Ra6+-) 63.Rb8 (better 63.Ra6!? Nc5 64.Ra5 e4+-) 63...Ke7 64.Bd5 (better 64.Ra8!? Bc3+-) 64...Nb6+/- 65.Ke4 a4 66.c5 (better 66.Rh8!?+/-) 66...Bc5= 67.Ba2 Bd4 68.Rb6 ½-½. Lacasta Palacios,J (2080) - Andreu Termes,F (1825), XXI Foment Martinenc Open, 2019. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5)

4.b5 b6 5.Bg2 Bb7 6.0-0 Bg7 7.Bb2 0-0 8.c4 d6 (8...d5 9.Qc2 (9.cd5 Nbd7 10.Qc2 Nd5 11.Bg7 Kg7 12.Nc3 N7f6 13.Nd5 Bd5 14.Rfe1; 9.Nc3 dc4 10.Qa4 c5 11.Rac1 Nbd7 12.Rfe1 Qc7 13.Qc4 Ne4 14.Ne4) 9...Nbd7 10.d4 c5 11.bc6 Bc6 12.a4 Rc8 13.Nbd2 dc4 14.Rfe1) 9.d4 (9.Nc3 Nbd7 10.Qc2 Nc5 11.d4 Ne6 12.e4 Qd7 13.Rad1 Ng4 14.h3) 9...Nbd7 (9...c5 10.dc5 dc5 11.Nc3 Qc7 12.Qd2 Rd8 13.Qe3 Nbd7 14.Rad1) 10.a4 (10.Nc3 e5 11.Qc2 ed4 12.Nd4 Bg2 13.Kg2 Ne5 14.Nd5) 10...Re8 (10...e5 11.Nc3 ed4 12.Nd4 Bg2 13.Kg2 Ne5 14.Qb3) 11.Nc3 (11.Qc2 e5 12.Nc3 Qe7 13.Rad1 e4 14.Nd2) 11...e5 12.e3 (12.d5 e4 (12...Nc5 13.Qc2 Qe7 14.Rad1) 13.Nd4 e3= (13...Nc5 14.Qc2) 14.f3; 12.Qc2 Qe7 13.de5 de5 14.Rfd1) 12...Ne4 13.Qb3 (13.de5 Ndc5 14.Ne4) 13...g5 (13...Nc3 14.Bc3+= (14.Qc3 ed4 15.ed4=); 13...ed4 14.ed4) 14.Rad1 (14.Ne4 Be4 15.h3 Qf6=) 14...Nc3 15.Bc3 g4 16.Nd2 Bg2 17.Kg2 e4 (17...Qg5 18.Qc2=) 18.Qc2 Qf6 19.Rh1 Qf5 20.h3 Nf6 21.hg4 (better is 21.Rdf1=) 21...Ng4–/+ (worse is 21...Qg4 22.d5 Qg6 23.Rh4+/–) 22.Nf1? (better is 22.Rdf1 Qf2! 23.Rf2 Ne3 24.Kh3 Nc2 25.Ne4 Nd4 26.Rf4–/+) 22...Qf3–+ 23.Kg1 Nf2! 24.Qf2 Qd1 25.Qf5 h6 26.Rh4 Qf3?? (better is 26...Qd3 27.Rg4 Kh8–+ (27...Qc3 28.Qf6 Kf8 29.Qg7 Ke7 30.Re4 Kd8 31.Qf6 Kd7 32.Qf7 Re7 33.Re7 Kc8 34.Qe8 Kb7 35.Qc6 Ka7 36.Qc7)) 27.Rf4= Qe2 28.Qf7 Kh8 29.Qg6?? (better is 29.d5 Bc3 30.Rf6 Bf6 31.Qf6 Kg8 32.Qg6 Kf8 33.Qf6 Kg8 34.Qg6 Kh8 35.Qf6 Kh7 36.Qf7 Kh8 37.Qf6=) 29...Qc4–+ 30.Rf7 Rg8 31.Bb2 Raf8?? (31...Qb3 32.Rf2 d5–/+ (32...Qa4?? 33.d5 Qd4 34.Bd4 Bd4 35.Qh6)) 32.d5!+– (32.d5 Qf1 33.Rf1 Rf1 34.Kf1 Rf8 35.Ke2 Bb2 36.Qh6 Kg8 37.Qg6 Kh8 38.g4+–) 1–0. Spiridonov,Nikolai (2180) – Algaba,Pedro, 2nd Rohde Open, Sautron FRA, 2002.

4.b5 b6 5.Bg2 Bb7 6.0-0 Bg7 7.d4 0-0 8.c4 d5 (8...c5 9.bc6 dc6 10.Bf4=) 9.cd5 (9.Ne5 c5+=) 9...Nd5= 10.Bb2 c5 11.bc6 White gets in control 11...Nc6 12.e4 Nc7 13.Qd2 e6 14.Rd1 Qd7 (14...f5!?=) 15.d5+= Bb2 16.Qb2 (worse is 16.dc6 Bc6 17.Qe2 Bb5–/+) 16...ed5 17.Nc3 d4 18.Na4 (18.Qb6 Ne6+=) 18...Rab8 (better is 18...Rad8!?=) 19.Nb6 Qd6 20.Nd4 Rfd8 21.Nc4 Qc5 22.Nc6 Bc6 23.Rd8 Rd8 24.Rc1 Qb4?? (better is 24...Ne6+/–) 25.Qb4+– ab4 26.Ne3 Rd6 (26...Be4 27.Be4 Nb5 28.Nd5+–) 27.e5 (27.e5 Rd2 28.Rc6+– (worse is 28.Bc6 Ra2 29.Rb1 Ra5+–)) 1–0. Smyslov,Vassily – Soederberg, Stockholm, 1961. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

4.b5 d5 5.Bb2 Bg7 6.Bg2 0-0 7.0-0 c6 8.a4 cb5 9.ab5 Nbd7 10.d3 Nc5 11.Nbd2 Bd7 12.c4 dc4 13.dc4 Bf5 14.Ra3 Qc8 15.Qa1 a4 16.Bd4 Nh5 17.e3 Rd8 18.Qa2 Bd4 19.ed4 (worse is 19.Nd4 Bh3=) 19...Ne6 20.Qa1 Nf6 21.Re1 Qc7 22.c5 Qa5 23.Qb2 Nc7 24.Bf1 Be6 25.b6 Ncd5 26.Rb1 Rac8 27.Nc4 Qa8 28.Nfe5 Ng4 29.Rba1 Ne5 30.Ne5 (30.de5?! Rc5 31.Ra4 Qc8+=) 30...Qa5 31.Nc4 Qb4 32.Qc1 Bf5 33.g4 (worse is 33.Ra4 Qc3 34.Bg2 Qd4+–) 33...e5 (33...Bg4?? 34.Rb1 Qa3 35.Qa3+–) 34.Ra4 (34.gf5?! ed4 35.fg6 fg6+–) 34...Qc3 35.gf5 ed4 (35...Qc1 36.Rc1 ed4 37.Nd6 Nb6 38.Rd4+– (38.cb6?! Rc1 39.Rd4 Rc6+=)) 36.Qg5 f6 37.Qg4 g5 38.Qe4 (38.Qe4 Kg7 39.Nd6 Rc5 40.Nb7+–) 1–0. Poleschi,Ricardo D (2280) – Wilhelms,Harald (2055), IECC, 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

4.b5 d5 5.Bb2 Bg7 6.Bg2 c5 7.bc6 Nc6 8.Na3 0-0 9.c4 d4 10.Nb5 e5 (10...d3 11.Ne5 Ne5 12.Be5 de2 13.Qe2=) 11.Ba3 e4 12.Ng5 (worse is 12.Bf8 ef3 13.Bf3 Bf8–/+) 12...Nb4 13.0-0 (13.Bb4 ab4 14.Ne4 d3 15.ed3 Ne4 16.Be4 Ba1 17.Qa1 Bh3+=) 13...Re8 14.d3 Bf5 15.Bb4 ab4 16.Qc2 e3 17.fe3 (better is 17.Bb7 Ra5 18.Bc6 ef2 19.Rf2= (worse is 19.Kf2 Ng4 20.Ke1 Re5–+)) 17...Ng4–/+ (17...Re3?! 18.Nf3+=) 18.Nf7 Kf7 19.c5?? (better is 19.e4 Ne3 20.Qb2 Nf1 21.Rf1+=) 19...Kg8–+ (19...Re3?! 20.Nd6 Ke7 21.Qb3+=; 19...de3?! 20.Nd6 Ke7 21.Rab1=) 20.Rf5 gf5 21.Nd6 Rf8 (21...de3 22.Qb3 Re6 23.Qe6 Kh8 24.Nf7 Kg8 25.Nd8 Kh8 26.Qe8 Bf8 27.Qf8#; 21...Ne3 22.Qb3 Nc4 23.Qc4 Re6 24.Qe6 Kh8 25.Nf7 Kg8 26.Nd8 Kh8 27.Qe8 Bf8 28.Qf8#; 21...Re3 22.Qb3 Kh8 23.Nf7 Kg8 24.Nd8 Kh8 25.Nf7 Kg8 26.Nh6 Kh8 27.Qg8 Rg8 28.Nf7#) 22.Bb7 Ra7 23.Qc4 Kh8 24.Qb4 (24.Nf7 Rf7! 25.Qf7 Ne3–+) 24...Ne3 (24...Qg5 25.Kh1 de3 26.d4–+) 25.c6 (25.Qb6 Qb6 26.cb6 Ra5–+) 25...Nd5 26.Qc5 Ra5 27.Nb5 Nc7 28.Rb1 Rb5 29.Rb5 Nb5 30.Qb5 Qe7 31.Kf1 f4 (31...f4 32.c7 fg3 33.Bf3 gh2–+) 0–1. Kerr,B (1940) – Brown,An (2275), Doeberl Cup Premier, 2011. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

4.b5 d6 5.Bg2 Bg7 6.Bb2 e5 7.d3 0-0 8.0-0 Nbd7 9.c4 Nc5 10.e4 Ne8 11.Nc3 Be6 12.Na4 Na4 13.Qa4 Nf6 14.Ng5 Nd7 15.Ne6 fe6 16.Qc2 Qg5 17.Rad1 Rf7 18.Bc1 Qh5 19.Qd2 b6 (19...h6 20.Qc2=) 20.Qg5+= Qg5 21.Bg5 Re8 22.h4 h5 23.Bh3 Nc5 24.Kg2 Kh7 25.f3 (25.f4 Ref8+=) 25...Bh6= 26.Kf2 Bg5 27.hg5 Kg7 28.Ke3 h4 (28...Rh8 29.a3=) 29.gh4+= Rh8 30.Bg4 Rh4 31.Rh1 Rh8 32.Rh8 Kh8 33.Rh1 Rh7 (33...Kg7 34.Rh6+=) 34.Rh7+/– Kh7 35.d4 ed4 36.Kd4 Kg7 37.f4 Kf7 38.f5 Ke7 39.f6 Kf7 40.e5 Nd7 41.ed6 cd6 42.Be2 Nc5 43.Bf3 Nd7 ½–½. Dobrovolsky,Ladislav (2390) – Markos,Jan (2155), Tatry op Tatranska Lomnica, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

5.Bb2 Bg7 6.Bg2 d5 7.c4 d4 (7...dc4 8.Ne5=) 8.e3 Be6 (8...de3 9.fe3 Bf5 10.d4+=) 9.Na3 (9.ed4 Bc4 10.Na3 Qd5 11.Nc4 Qc4 12.dc5 Qb5 13.Bf6 Bf6=) 9...d3 (9...de3 10.fe3 Qc8 11.Ne5=) 10.Ng5 (10.Ne5 Ra7+=) 10...Bg4 11.f3 (11.Qb1 Ra7+=) 11...Bc8 (11...Bf5 12.e4 h6 13.ef5 hg5 14.fg6 fg6 15.Qb1+=) 12.Ne4 b6 (12...Nbd7 13.Qb3+=) 13.Nf2 (13.Nf6 ef6 14.f4 Ra7+=) 13...Ra7 14.Qb3 Rd7 15.Rc1 Bb7 (15...h5 16.Rc3+=) 16.Rc3 Nh5 (16...0-0 17.Rd3 Qc7 18.0-0+–) 17.Rd3+– Rd3 18.Nd3 0-0 19.Bg7 (19.Nf2 e5+–) 19...Ng7 20.0-0 Qd6 21.Rd1 Nd7 (21...Rd8 22.Nf2+–) 22.Nc2 (22.Nf2 e5+–) 22...e5 (22...Re8 23.Nde1+–) 23.Nf2 Ne6 24.Qd3 (24.Qc3 f5+–) 24...Qe7 (24...Qd3 25.Nd3 Rd8 26.f4 Bg2 27.Kg2+–) 25.Ne4 (25.Qc3 Ng5 26.Ne1 Re8+–) 25...f5 (25...Rd8 26.Qd6 Kf8 27.Qe7 Ke7 28.Nc3+–) 26.Nc3 e4 (better 26...Rd8!?+–) 27.fe4+– Ne5 (27...fe4 28.Ne4 Nf6 29.Nf6 Rf6 30.Rf1 Rf1 31.Qf1+–) 28.Qe2 fe4 29.Ne4 (29.Be4 Be4 30.Ne4 Qb7+=) 29...Qd8 (29...Kg7 30.d4 Be4 31.Be4+– (31.de5?! Ng5+=)) 30.d4 cd4 (30...Qa8 31.d5+–) 31.ed4 Nf7 32.d5 Neg5 33.Nd4 (33.Ng5 Ng5 34.Nd4 Re8+–) 33...Ne4 34.Qe4 Re8 (34...Qd6 35.Ne6 Re8 36.Qd4+–) 35.Ne6 (35.Qf4 Qd6+–) 35...Qd6 36.Re1 (36.Qd4!? Ne5+–) 36...Bc8 37.Bh3 (better 37.Re2+–) 37...Be6? (better 37...Ng5 38.Qe3 Nh3 39.Kg2 Be6 40.de6 Ng5 41.Qg5 Re6 42.Re6 Qe6+–) 38.Be6+– (38.de6?! Ng5 39.Qd5 Nh3 40.Kg2 Qd5 41.cd5 Ng5+–) 38...Qc5 39.Qe3 (39.Kh1!? Rf8 40.Rf1 Qc7+–) 39...Kg7 (39...Qe3 40.Re3 Kg7 41.Re2+–) 40.Qc5 bc5 41.Kf2 Nd6 42.Rc1 Kf6 43.Ke3 Ke7 44.Kd3 (44.h3 Kd8+–) 44...Rf8 45.Bg4 Rf7 (45...h5 46.Re1 Kd8 47.Re6 Nb5 48.cb5 hg4 49.Rg6+–) 46.Re1 Kd8 47.Re6 Nf5 (47...Rd7 48.b6 Nf7 49.Bd1+–) 48.Bf5 (48.Ra6!? Kc8+–) 48...Rf5 49.Rc6 Rf2 (49...Rf3 50.Ke4 Rf2 51.b6+–) 50.Rc5 (50.b6 Rb2+–) 50...Ra2 51.b6 Rb2 52.Rb5 (52.Rb5 Rb5 53.cb5+–) 1–0. Halmeenmaki,Tuomo (2180) – Eklund,Kari (2225), Ch Finland (team), 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

5.c4 b6 6.Bg2 Bb7 7.0-0 Bg7 8.Bb2 0-0 9.d3 d6 10.Nbd2 Nbd7 11.a4 (11.Qc2 e6=) 11...e5 (11...Qc7 12.Qb3=) 12.e4 (12.Qb3 Bh6=) 12...Bc8 (12...Re8 13.Nb1=) 13.Bc1 (13.Qe2 Bb7+=) 13...Ra7 14.Ra2 h5 (14...Re8 15.Nb1=) 15.Re1 Nh7 (15...Re8 16.Ng5=) 16.Nh4 (16.Nf1 Bb7+=) 16...Re8 17.Nf1 Ndf8 18.Ne3 Ng5 (18...Nf6 19.Qd2=) 19.Rf1 Nge6 20.Qe1 Bh6 21.Nc2 (21.Nf3 Nd7=) 21...Bc1 22.Qc1 Nd7 (22...Nd4 23.Nd4 cd4 24.Qd2=+) 23.Qh6 Nf6 24.h3 Nh7 25.Nf3 Nd4 26.Nfd4 ed4 27.f4 Qf6 28.Ne1 Qg7 29.Qg7 Kg7 30.Re2 Rae7 31.Nf3 Bb7 32.Rfe1 Nf6 33.Nd2 Nd7 34.Kf2 f5 (34...f6 35.h4=) 35.Bf3+= Nf6? (better 35...fe4!? 36.Ne4 Be4 37.Re4 Re4 38.Re4 Re4 39.Be4 Nf6+=) 36.e5+– de5? (better 36...Nh7 37.Bc6 Bc6 38.bc6 de5 39.Re5 Re5 40.Re5 Nf6+–) 37.Bb7?? (better 37.Re5 Re5 38.fe5+– (38.Re5?! Bf3 39.Nf3 Re5 40.Ne5 Kh6=)) 37...Rb7+= 38.Re5 Re5 39.Re5 h4 40.gh4 Nh5 41.Kf3 Kf6 42.Nf1 (42.Nb3 Rb8+=) 42...Re7 (42...Rb8 43.Nd2=) 43.Re7+= Ke7 44.Ng3 Ke6 (44...Ng3 45.Kg3 Kf6 46.Kf3=) 45.Ne2 Kd6 ½–½. Filippov,Vladimir (1965) – Golovchanov,Artiom (2095), Fide Open, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

5.c4 b6 6.Bg2 Bb7 7.Bb2 Bg7 8.0-0 0-0 9.d3 (9.Nc3 d5+=) 9...d6 10.Nc3 Nbd7 11.e4 (11.Qd2 e6=) 11...Ne8 12.Qe2 Ra7 13.Ne1 Nc7 14.f4 Ne6 (14...Bd4 15.Kh1=) 15.Nf3+= Nd4 16.Nd4 Bd4 17.Kh1 e6 18.Na4 Qf6 19.Bd4 Qd4 20.Rae1 f6 (20...Re8 21.Qe3+=) 21.h4 (21.f5 Re8 22.fe6 Re6+=) 21...Kg7= 22.Kh2 h6 (22...Re8 23.Qe3=) 23.Bh3 (23.f5 Ne5 24.fe6 Bc8+/–) 23...Re8 (23...f5 24.ef5 ef5 25.h5+=) 24.Qd2 (24.h5 g5+=) 24...Raa8= 25.Re3 (25.Qc3 Rac8=) 25...Rab8 (25...f5!?=) 26.Rfe1+= Kf7 27.Nc3 f5 28.ef5 (28.h5 Qf6+=) 28...gf5= 29.Na4 (29.Ne2 Qf6 30.d4=) 29...Ba8 (29...Qf6!?=) 30.Qe2+= Kg7 31.Bg2 (31.Nb2 Nf8=) 31...Nf6 32.Bh3 (32.Re6?? Re6 33.Qf1 Ng4 34.Kh3 Re1 35.Qe1 Re8–+) 32...h5 (32...Nd7 33.Nb2= (33.Re6?? Re6 34.Qd2 Re1 35.Qe1 Re8–+)) 33.Qb2 (33.Qd2 Kf7+=) 33...Kf7 34.Qd4 cd4+= 35.R3e2 Bf3 36.Rd2 Ng4 37.Bg4 hg4 38.Kg1 Ke7 39.Rh2 Kd7 40.h5+= e5 41.fe5 de5 42.h6 e4 43.h7 Rh8 44.Rh6?? Kc7 45.c5+= bc5? 46.b6+– Kc8 47.Nc5 Rb6 48.Rb6 Rh7 49.Rc6 Kd8 50.Rd6 Kc8+/– 51.Rd4 f4 52.Ree4 Rh1? 53.Kf2+– Rh2 54.Ke1 fg3 55.Rg4 Re2= 56.Kd1 Ra2 57.Kc1= Bg4 58.Rg4 g2 59.Nb3 a4 60.Nd2 Ra1 61.Nb1 a3 62.Rg2 a2 63.Rb2 ab1Q 64.Rb1 ½–½. Santolini (2235) – Reich (2240), Roncegno, 1988. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

5.c4 Bg7 6.Bb2 d5 7.cd5 0-0 8.Bg2 Nd5 (8...Qd5 9.Qc2=) 9.Bg7+= Kg7 10.Qb3 Nf6 11.0-0 b6 12.d4 cd4 13.Nd4 Ra7 14.Nc6 Nc6 15.bc6 Qd4 16.Nc3 Be6 17.Rfd1 a4 18.Qb2 a3 19.Qd2 Qd2 20.Rd2 Ra5 21.Rb1 Rc8 22.Rb5 Rb5 23.Nb5 Ne8 (23...Bf5 24.f4+/–) 24.Na3+– Nd6 25.Nb1 b5 26.Rb2 Bc4 27.Nc3 f5 28.f4 Kf6 29.Kf2 e6 30.Rb4 e5 31.fe5 Ke5 32.Ke3 Ra8 33.a4 ba4 34.Na4 (34.Ra4?! Ra4 35.Na4 Bd5=) 34...Bb5 35.Nc5 Rc8 36.Nd7 Ke6 37.Nb6 Rb8 38.Bd5 Ke7 39.Nd7 Re8 40.Bf3 Kd8 41.Kd4 Kc7 42.Ne5 g5 43.h3 h6 44.Rb1 Rd8 45.Kc5 Be2 46.Ra1 Bf3 47.Ra7 Kb8 48.Rh7 Kc8 49.Nf3 Ne4 50.Kb6 Nf6 51.Rh6 Nd5 52.Kc5 g4 53.Nd4 f4 54.gf4 (54.hg4?! fg3 55.g5 g2+/–) 54...g3 55.Nb5 (55.Rh7 Nc7 56.f5 Rg8+–) 55...g2 56.Rg6 Nf4 57.Rg7 Rd5? (57...Rh8 58.Nd6 Kb8 59.c7 Ka8+–) 58.Kb6 Ne6 (58...Rb5 59.Kb5 g1Q 60.Rg1 Nd5+–) 59.Rg8 Rd8 60.Na7 Kb8 61.Rd8 Nd8 62.c7 Ka8 63.c8Q# (63.cd8Q#) 1–0. Hoglund,Jan (2385) – Stueber,Guido (2205), ICCF EM/J50/P032 ICCF Email, 2001. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

5.Bg2 Bg7 6.Bb2 0-0 7.c4 d6 8.0-0 e5 9.d3 Bg4 10.h3 Be6 11.Ng5 Qc7 12.Nc3 Nbd7 13.a4 Rae8 14.Qd2 Kh8 15.Kh2 h6 16.Ne6 Re6 17.f4 ef4 18.gf4 (18.Qf4 Ne5+/–) 18...Kh7 19.Rae1 Nb6 20.Bf3 Re7 21.e4 Rd8 22.Rg1 Rg8 23.Rg2 Nfd7 24.h4 Ree8 25.Nd5 (better is 25.h5!?+=) 25...Nd5 26.cd5 Bb2 27.Qb2 Qd8 28.Kh3 Qc7 29.h5 Nb6 30.e5 (30.Reg1 Qe7=) 30...Na4 31.Qa1 Qd7?? (31...Nb6 32.e6 Qc8+/–) 32.e6+– fe6 33.hg6 (33.Qa4 ed5 34.Bg4 Qf7 35.Re8 Re8 36.hg6 Qg6 37.Qa5 Qd3 38.Kh2 Qe3 39.Qc7 Qe7 40.Bf5 Kh8 41.Qe7 Re7+–) 33...Rg6 34.Rg6 (34.Qa4?? ed5 35.Kh2 Re1 36.Rg6 Kg6 37.Qa5 Qe7–+) 34...Kg6 (34...e5 35.Bg4 Qf7 36.Rd6 h5+–) 35.Rg1 (35.Qa4?! ed5 36.Bg4 Qf7 37.f5 Kf6 38.Qa5 h5+/–) 35...Kf5 36.Be4 Kf4 37.Qf6 Ke3 38.Rg3 Kd2 (38...Ke2 39.Rg2 Kd1 40.Qa1) 39.Rg2 (39.Rg2 Kd1 40.Qa1) 1–0. Halfdanarson,Jon – Balaskas,Panayotis, WchT U26 fin–B, 1969. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5)

5.Na3 c5 6.c4 b6 7.Bg2+= Bb7 (7...Bg7 8.Ne5 Ra7 9.Bb2 0-0 10.e3 Qc7 11.0-0 Bb7 12.Bb7 Qb7; 7...d6 8.Ne5 de5 9.Ba8 Bh3 10.Nc2 Bg7 11.Bb2 0-0 12.d3 Qd6) 8.Bb2 Bg7 (8...d6 9.Bf6 ef6 10.0-0 Nd7 11.d4 Bg7 12.Nh4 Bg2) 9.0-0 0-0 10.Nc2 (10.Ng5 Bg2 11.Kg2 d6 12.Qb3 Nbd7) 10...d6 (10...d5 11.Ne5 Qc7 12.d4 cd4) 11.d3 (11.Ne3 Qc7 12.Qc2 Nbd7) 11...Nbd7 12.a4 (12.Ne3 Qc7) 12...Rc8 (12...Ng4=) 13.e4 e5 (13...Ne8 14.Rb1=) 14.Ne3 Nh5 15.Ne1 Qe8 16.Bh3 Rc7 17.N1g2 Bh6 (better is 17...f5!?+=) 18.Nf5!+/– Bg5 (18...gf5 19.Qf3) 19.Nd6 Qe7 20.Nb7 Rb7 21.f4 ef4 22.gf4 Bh6 23.Bg4 Ng7 24.f5 (24.Qf3 Ne6+–) 24...gf5 (24...Ne8 25.Qc2+/–) 25.Bf5 Ne5 26.Qe2 Rd8 27.Rad1 Rc7 28.Kh1 f6 (28...Rd6 29.Rg1+–) 29.Bh3 (29.Ne3 Be3 30.Qe3 Rd6+–) 29...Bg5 30.Ne3 Be3 31.Qe3 Ne6?? (better is 31...Qd6+–) 32.Be5 fe5 33.Be6 Qe6 (33...Kh8 34.Rf7 Qe6 35.Rc7 Qd6+–) 34.Qg5 (34.Qg5 Kh8 35.Qd8 Qe8 36.Rf8 Qf8 37.Qf8#) 1–0. Meyer,B (2235) – Pleininger,R, Ambassador Open, Bern SUI, 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6)

5.Na3 c5 6.Bg2 d5 7.c4 e6 8.0-0 Bg7 9.Bb2 0-0 10.d3 b6 11.Rb1 Bb7 12.Ne5 Qc7 13.e3 Nbd7 14.Nd7 Nd7 15.Bg7 Kg7 16.f4 Nf6 17.Qe2 Rad8 18.Rbd1 Qe7 19.Qb2 Kg8 20.Bf3 h5 21.h3 d4 22.Bb7 Qb7 23.e4 Qe7 24.Qd2 Kg7 25.Rde1 e5 26.f5 Nh7 27.Kh2 Rd6 28.Rf3 g5 29.Ref1 Qf6 30.R3f2 Rh8 31.Kg1 Qh6 32.f6 Rf6 33.Rf6 Nf6 34.Rf5 g4 35.Qh6 Rh6 36.Re5 gh3 37.Nc2? (better is 37.Rf5–+) 37...Rg6 38.Ne1 Rg3 39.Kh2 Re3 40.Rg5 Kh6 41.Rg1 Ng4 42.Kh1 Re2 43.Rf1 Nf2 44.Kh2 (44.Kg1 h2! 45.Kh2 Nd3 46.Ng2–+) 44...Nd3 45.Kh3 Re1 46.Rf6 Kg7 47.Rb6 Re4 48.Ra6 Re6 (48...Ne5!? 49.b6 Re3 50.Kg2–+) 49.Ra5 (49.b6 Nf4 50.Kg3 d3–+) 49...Nb2 (better is 49...Nf2!? 50.Kg2 d3 51.Ra8–+) 50.b6 Rb6 51.Rc5 d3 52.Rd5 Rc6 0–1. Bielmeier,Ludwig (2175) – Schaefer,Uwe (2060), North Bayern–ch, 2004. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6)

5.Na3 d5 6.Bg2 Bg7 7.Bb2 0-0 8.0-0 Nbd7 9.bc6 bc6 10.c4 a4 (10...Rb8 11.Rb1=) 11.Rb1 Qa5 12.Qc2 Qa6 13.Rfc1 Ne8 (13...Re8 14.Ne5+=) 14.Bg7+/– White fights for the Initiative 14...Ng7 15.cd5 cd5 16.Nb5 Ne8 (16...Ne6 17.Qd3+/–) 17.Nfd4 Ndf6 (better is 17...e6!?+/–) 18.Nc6+– Kg7 19.Ne7 Be6 20.Qc5 Rd8 21.d3 Rd7 22.Nc6 Qa8 (22...Rb7 23.Nc3+–) 23.Ncd4 Qa6 (23...Bg4 24.h3 Be6 25.Ne6 fe6 26.Nd4+–) 24.Qb4 (24.Qa3 Qa5+–) 24...Qa8 (24...Kg8 25.Nc3+–) 25.Rc6 Bg4 (25...Kg8 26.Rb6+–) 26.f3 (26.f3 Bh5 27.Bh3+–) 1–0. Smyslov,Vassily – Kuijpers,Franciscus, Moscow, 1963. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6)

5.a4 Bg7 6.Bb2 Qb6 7.Bd4 c5 8.Bb2 d5 9.Bg2 Nbd7 10.0-0 0-0 11.e3 Qc7 12.c4 dc4 13.Na3 Nb6 14.Rc1 Bf5 15.Ne5 (worse is 15.Nc4 Nc4 16.Rc4 Bd3–/+) 15...c3 16.Bc3 Ne4 17.f4 Nc3 18.Rc3 (worse is 18.dc3 c4–/+) 18...Be5 19.fe5 Qe5 20.Bb7 Rad8 21.Qc1 Na4 22.Rc4 Qb8 23.Bc6 Nb6 24.Rc5 Bd3 25.Re1 e5 26.Qa1 f6 27.Qc3 Qa7 28.Rc1 Kh8 29.Qb3 Qe7 30.Bg2 Bf5 (30...e4 31.Rc6 a4 32.Qb2=) 31.Rc6 a4 32.Qb2 Rd6 33.Rc7 (better is 33.Rd6!? Qd6 34.Rc6+=) 33...Qd8+= 34.R7c6 (34.Qb4 Rd2 35.Bf1 Qd6 36.Qd6 Rd6–/+) 34...Rd2–/+ 35.Qb4 Rd1 36.Rd1 Qd1 37.Bf1 Nd7 38.Rd6 Qb3 (better is 38...Qc1!? 39.Nc4 Bh3–/+) 39.Qb3= ab3 40.Nc4 (better is 40.e4 Bg4 41.h3+=) 40...Nc5–/+ 41.Nb2 Ra8 42.Rc6 Ra1 43.g4 Bg4 44.Rc5 Bh3 45.Kf2 Ra2?? (better is 45...Rf1 46.Kg3 Bf5–+) 46.b6= Rb2 47.Be2 Bg2 48.Kg2 Re2 49.Kf3 Rc2 50.b7 Rc5 51.b8Q (51.b8Q Kg7 52.Qa7 Kh6 53.Qc5+–) 1–0. Wiegel,Joerg (2070) – Zunker,Reinhard (2150), Hessenliga, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6)

5.c4 Bg7 6.Bb2 d5 7.cd5 cb5 8.e4 0-0 9.d3 e6 10.de6 Be6 11.Bg2 Nc6 12.0-0 Qb6 13.Qe2 Rfd8 14.Rd1 Rd7 15.Nbd2 Rad8 16.d4 Nh5 17.e5 a4 18.Ne4 Bc4 19.Qe1 b4 (better is 19...Re7!?+=) 20.Nc5+/– ½–½. Mittermeier,Peter (2025) – Sucher,Johannes (2100), AUT–chT2W, 1994. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6)

6.Rb1 d5 7.c4 (7.Bg2 0-0=) 7...Nbd7 (7...dc4 8.Nc4 0-0 9.Bg2=) 8.Bg2 Ne4 (8...0-0 9.d4=) 9.Bb2+= Ndf6 (9...Qb6 10.0-0 Bb2 11.Rb2+=) 10.0-0 (10.d3 Nc5+=) 10...Nd6 (10...0-0 11.d3 Nc5 12.Qc2+=) 11.bc6+– bc6 12.Ne5 Bd7 (12...Qc7 13.Qa4 Bd7 14.Rfc1+–) 13.cd5 (13.Nd7 Qd7 14.cd5 cd5 15.Bd5 Rc8+–) 13...cd5 14.Nd7 Qd7 15.Bd5! Nd5 A pinning theme (15...Rc8 16.Bf3 0-0 17.Bc3+–) 16.Bg7 Rg8 17.Be5 Kf8 (17...a4 18.Re1+–) 18.Qb3+– White gets strong initiative 18...Nf6 19.Bf6 ef6 20.Qd5 Kg7 21.Nc4 Ra6 22.d3 Qe7 23.Ne3 Qe5 (23...Rc8 24.Rfc1+–) 24.Rfc1+– Rc8 25.Qe5 (25.Rc8 Nc8 26.d4 Qc7+–) 25...fe5 (25...Rc1 26.Rc1 fe5 27.Rc5+–) 26.a4 (26.Rc8 Nc8 27.Rb5 e4+–) 26...Rd8 (26...Rac6 27.Rc6 Rc6 28.f4+–) 27.f3 Re8 (27...Ra7 28.Rc5 f6 29.Rd5+–) 28.Kf2 Rd8 (28...g5 29.h4 gh4 30.gh4+–) 29.Rc5 Re8 30.Nd5 Rc8 (30...Ra7 31.Rb6 Rd8 32.Nc7+–) 31.Rc8 Nc8 32.Rb5 (32.f4 ef4 33.gf4 Nd6+–) 32...Na7 (32...Nd6 33.Rc5+–) 33.Rc5 (33.Rb7 Nc6+–) 33...Nc6 34.g4 h6 35.h4 Kf8 36.g5 hg5 37.hg5 Kg7 38.Nf6 Rb6 39.Nd7 (39.Nd7 Ra6 40.Ne5 Ne5 41.Re5+–) 1–0. Smyslov,Vasily – Alvarez del Monte,Jose Luis, Havana, 1962. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6 5.Na3 Bg7)

6.Bb2 0-0 7.Bg2 d5 8.0-0 Bd7 9.c4 dc4 10.bc6 Bc6 11.Nc4 Nbd7 12.a4 b5 (12...Rc8 13.d3=) 13.ab5 Bb5 14.Ne3 (14.d3 Bc4 15.dc4 Qc7=) 14...Bc6 15.Ra3 Ra6 (15...a4 16.Qc2 Qb6 17.Nc4=) 16.Qa1 Qa8 17.Rc1 a4 18.Ne5 (18.d3 Rb8=) 18...Ne5 19.Be5 Bg2 20.Ng2 Rc8 21.Rc8 (21.d4 Rc1 22.Qc1 Rc6=) 21...Qc8+= 22.Ne3 (22.Ra4? Ra4 23.Qa4 Qc1 24.Ne1 Qe1 25.Kg2 Qd2 26.Qa8 Bf8–+) 22...Qe6 23.Bc3 Qd7 24.d3 (24.Qb2 Ra8=) 24...h5 (24...h6 25.Bd4=) 25.h4 Qc6 26.Bd4 ½–½. Jackson (2225) – Hickman, Port Erin, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6 5.Na3 Bg7)

6.Bb2 0-0 7.Bg2 d5 8.0-0 Nbd7 9.Rc1 Nb6 10.bc6 bc6 11.c4 Ba6 12.Ne5 Rc8 13.c5 Nbd7 14.Nd7 Nd7 15.Bg7 Kg7 16.d3 Rb8 17.Qd2 Kg8 18.d4 e5 19.Rfd1 ed4 20.Bd5? (better is 20.Nc2=) 20...cd5–+ 21.c6 Rc8?? (better is 21...Qe7 22.Qa5 Be2–+) 22.cd7= Qd7 23.Qd4 ½–½. Wiegel,Joerg (2060) – Fuhrmeister,Ulf Theo, Kassel op, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6 5.Na3 Bg7)

6.Bb2 0-0 7.Bg2 d5 8.c4 Nbd7 (8...cb5 9.cb5 Bf5 10.0-0=) 9.bc6 bc6 10.Rb1 Re8 11.Qa4 e5 (11...Ra6 12.0-0=) 12.Qc6+= Ra6 13.Qa4 Nc5 14.Qd1 (14.Qb5 Nfe4 15.Ba1 Bd7=) 14...e4 (14...Bf5 15.Rc1 Qb6 16.Ba1+=) 15.Nd4 Ng4 16.0-0 dc4 17.Nab5 (17.Ndb5 Bb2 18.Rb2 Ne5+=) 17...Bb7= 18.Qc1 (18.Qc2 Bd5=) 18...Bd5 19.Nc2 Bb2 20.Qb2 Rb6 21.Qc3 a4 22.h3 Qd7 23.hg4 (23.Nba3 Rb1 24.Rb1 Ne5+/–) 23...Rb5= 24.Ne3 Reb8 25.Rb5 Rb5 26.g5 Be6 (26...Qd8 27.Ng4 Nd7 28.Be4 Qg5 29.Bd5 Qd5 30.Nh6 Kf8 31.Rc1=) 27.Rc1 (better is 27.Nc4 Bc4 28.Qc4+/–) 27...Nb3? (better is 27...Qd8=) 28.ab3+– cb3 29.Qb2 (29.Be4!? Rg5 30.Ra1 Qa7+–) 29...Qe7 (29...Rb4 30.Nd1 Rd4 31.Nc3 Rd2 32.Qa3+=) 30.Ra1 (30.Be4?! a3 31.Nd5 Rd5 (31...ab2 32.Ne7 Kf8 33.Rd1 Ke7 34.Rb1–/+) 32.Qb3 Rd2+=) 30...Ra5 (30...Qb4 31.Nd1+/–) 31.Ra3+– (31.Be4 a3 32.Qd4 b2=) 31...Qg5 (31...Qb4 32.Nd1+–) 32.Be4 f5 33.Bd5 Bd5+= 34.Nd5 Rd5 35.Ra4 Qd2 36.Ra8 Kf7 37.Qh8 Rd7 38.Qh7 Kf6 If Black now only could play Qe1... 39.Qh8 Ke6+/– 40.Re8 Kd5?? 41.Qe5+– (41.Qe5 Kc6 42.Rc8 Kb7 43.Qb8 Ka6 44.Rc6 Ka5 45.Rc5 Ka6 46.Qa8 Kb6 47.Rc6 Kb5 48.Qa6 Kb4 49.Rc4#) 1–0. Sigurjonsson – Garcia Martinez, Lugano, 1968. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6 5.Na3 Bg7)

6.Bb2 d5 7.Rb1 0-0 8.Bg2 Re8 (8...Bf5 9.0-0=) 9.0-0 Nbd7 10.c4 (10.bc6 bc6 11.d4 Rb8=) 10...e5 11.d3 d4 (11...Qe7 12.bc6 bc6 13.h3=) 12.bc6 bc6 13.Ng5 (13.e3 de3 14.fe3 Rb8+=) 13...Qc7 (13...Ra6 14.Nc2=) 14.Nb5 cb5 15.Ba8 bc4 16.dc4 Qc4 17.Ne4 (17.a3 Ba6 18.Bf3 e4+=) 17...Ne4 18.Be4 Qa2 19.Qc2 (19.Bc6 Qc4 20.Rc1 Qb4+=) 19...Ba6 20.Ra1 (20.Rfc1 Bh6 21.Ra1+=) 20...Qe6 (better is 20...Qc4!? 21.Qc4 Bc4 22.Ra5 Be2–/+) 21.Ra5= Rc8 22.Qd1 (22.Qd2!?=) 22...Nc5–/+ 23.Bd3 (23.Bg2 Qb6 24.Qa1 Be2–/+) 23...Nd3 (23...Bd3 24.ed3 Qb6 25.Ra2–/+) 24.ed3+= h5 (24...Rb8 25.Ba1+=) 25.Qe2 (25.Qd2 Bb7 26.f3 Qb6=) 25...e4+= 26.Ra6 (26.de4 Be2) 26...Qa6 27.Qe4 Qb6 28.Ba1 Qc6 29.Qf4 Qf6 30.Qf6 Bf6 31.Kg2 Rc2 (31...Ra8 32.Kf3+=) 32.Kf3= Bg7 33.Ke4 Re2 (33...Ra2 34.Kd5 (34.Bd4? Ra4–+) 34...Ra3 35.Kc4= (35.Bd4 Rd3 36.Ke4 Rd4 37.Ke3 Kf8–+)) 34.Kd5 Rd2 35.Kc4 (35.Bd4?? Rd3 36.Ke4 Rd4 37.Ke3 Kf8–+) 35...Rc2 36.Kd5 Rd2 37.Kc4 (37.Bd4?? Rd3 38.Ke4 Rd4 39.Ke3 Kf8–+) ½–½. Saltik – Durao (2225), Kusadasi, 1990. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6 5.Na3 Bg7)

6.Bb2 d5 7.Bg2 0-0 8.c4 Nbd7 9.bc6 bc6 10.0-0 e6 11.Rb1 Qe7 12.cd5 cd5 (better is 12...ed5 13.Re1 Re8=) 13.Nb5+/– Ba6 14.Ba3 Qd8 15.Bf8 Bf8 16.a4 Bb4 17.Nfd4 (17.Nbd4 Rc8+/–) 17...Qb6 18.Nc2 (18.d3 Nc5+/–) 18...Be7 (18...Bb5!? 19.ab5 Qb5+=) 19.Nca3 Bb4 20.Rc1 (20.d4!?+–) 20...Rb8+/– 21.d4 Ne4 (21...Bb5 22.Nb5 Qd8 23.Na7+–) 22.Be4 de4 23.Nc4 Qd8 24.Ncd6 Nb6 (24...Bd6 25.Nd6 Nf6 26.Rc6+/–) 25.Ne4 Na4 26.Na7 Nb2 27.Qc2 Bb7 (27...Qd4?? 28.Nc6 Rc8 29.Nd4 Rc2 30.Rc2+–) 28.Qb2 (28.e3!?+/–) 28...Be4+= 29.Nc6 Bc6 30.Rc6 a4 (30...Bc5! 31.Qc2 Bd4+=) 31.Qc2 a3 32.e3 Be7 33.Rc1 Kg7 34.Rc8 (34.Qe2 Qd5+/–) 34...Rc8 35.Qc8 Qb6 (35...Qc8 36.Rc8 g5 37.f3+/–) 36.Qc3 Qb7 37.d5 e5 38.e4 (worse is 38.Qe5 Bf6 39.Qd6 a2+=) 38...h5 (38...Bd6 39.Qc6 Qb2 40.Rf1+/– (40.Qd6?? Qc1 41.Kg2 Qb2–+)) 39.f4 (39.Qe5?! Bf6 40.Qe8 a2=) 39...Qb6 40.Kg2 a2 (40...Bd6 41.Rc2 f6 42.fe5 fe5 43.Qf3+–) 41.fe5 (41.Kf3!? f6 42.fe5 fe5+–) 41...Qb1 42.e6?? (better is 42.d6 Qe4 43.Qf3 Qe5 44.de7 Qe7 45.Ra1+–) 42…Bf6= ½–½. Ross,D (2345) – Bolduc,Steve, Quebec Open, Montreal CAN, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 c6 5.Na3 Bg7)

5.Bb2 b6 6.Bg2 Bb7 7.0-0 0-0 8.a4 d6 9.d3 e5 10.Nbd2 (10.Bh1 Bh6=) 10...Re8 11.e4 Nbd7 ½–½. Frantzke,Helmut (1800) – Tochtermann,Georg (1830), Liechtenstein Seniors op, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5)

5.Bb2 b6 6.Bg2 Bb7 7.0-0 0-0 8.c4 d6 9.Na3 e5 10.d4 ed4 11.Nd4 Bg2 12.Kg2 Re8 13.Qb3 Qe7 14.Rad1 Nbd7 15.Nac2 Nc5 16.Qf3 Qe4 17.Ne3 Rac8 18.Nb3 Nfd7 19.Bg7 Kg7 20.Rd4 Qf3 21.ef3 f5 22.f4 Re7 23.Nd2 Ne6 24.Rd5 Nf6 25.Rd3 Nc5 26.Rd4 Rce8 27.Re1 h6 28.h3 Kf7 29.Nf3 Nce4 30.Rd3 Nc5 31.Rdd1 Na4 32.Rd2 Nc3 33.Nd4 Nh5 34.Kf3 Re4 35.a3 Na4 36.Ne2 Nf6 37.g4 fg4 38.hg4 g5 39.Rh1 Kg6 40.Ng2 (better is 40.Nf5!? Rh8 41.Rd4+=) 40...Rc4= 41.Ng3? (better is 41.Ne3 Rc5 42.f5 Kh7 43.Nd4+=) 41...Nc5 42.Nf5 h5 43.gh5 Kf5 44.Ne3 Re3! 45.fe3 (45.fe3 Nce4 Combination; 45.Ke3 Rc3 Double attack (45...Ng4 Deflection)) 45...g4 46.Kg2 Re4 47.h6 Kg6 48.Rd5?? (48.Re2–+) 48...Nd5 49.h7 Ne3 50.Kg3 (50.Kf2 Re8 51.h8Q Rh8 52.Rh8–+) 50...Nf5 (better is 50...Re8!? 51.Kf2 Ne4 52.Ke3 Ng3 53.Kf2 Nh1 54.Kg2–+) 51.Kg4 Re3 52.h8N Kf6 (52...Kf6 53.Rh3 Rh3 54.Kh3 Kg7–+) 0–1. Fernandez Aguado,Enrique (2355) – Munoz Pantoja,Miguel (2470), Sitges op, 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7)

5.Bb2 b6 6.Bg2 Bb7 7.a4 Nh5 8.Qc1 Qc8 =.

5.Bb2 c5 6.c4 b6 7.Bg2 Bb7 8.0-0 0-0 9.d3 d6 10.Qc2 Nbd7 11.Nc3 e6 12.Ne4 Qe7 13.Nc3 Ne8 14.Na4 Rb8 15.Rab1 f5 16.e3 Nc7 17.Bc3 e5 18.h4 d5 19.Nb6? (better is 19.Nb2!?+=) 19...Nb6–+ 20.Ba5 Qd6 21.Nd2 d4 22.ed4 ed4 (22...cd4? 23.c5 Qe6 24.Bb7 (24.cb6?! Nd5+/–) 24...Rb7 25.Bb6+–) 23.Bb6 Qb6 24.Bb7 Rb7 25.a4 f4 26.Kh2 g5! 27.Nf3 (27.hg5 h6 Decoy) 27...Ne6 28.Qe2 Bf6 (28...Bf6 29.a5 Qd6=) 0–1. Oosthuizen,G – Bohak,Janko (2330), CCOL12 prel2–03, 1992. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5)

5.Bg2 c6 6.a4 (6.Na3 0-0=) 6...0-0 (6...d5 7.d4=) 7.c4 (7.0-0 d5=) 7...d5+= 8.cd5 cd5 (8...Nd5 9.d4+=) 9.Bb2 (9.d4 Bf5=) 9...Bg4 10.0-0 Nbd7 11.d3 Bf3 12.Bf3 e5 13.Qb3 (13.Nd2 Rc8=) 13...e4 (13...Rc8 A) 14.Bd5? Nc5 (worse is 14...Nd5 15.Qd5 Nc5 16.Nc3+=) 15.Bf7 Rf7–+; B) 14.Rc1 Rc1 15.Bc1+=) 14.de4 de4 15.Bg2 Nc5 16.Qa3 Qd5 17.Nc3 Qh5 18.Rad1 Rad8 19.Bc1 b6 20.Bf4 Rd1 21.Rd1 Rc8 22.h3 Qf5 (22...Ne6 23.Qc1=) 23.Be3 Bf8 (23...Qe6!?=) 24.Qa2+= h5 25.Rd4 (25.Bd4 Bg7+=) 25...Re8 26.Qc2 Qe5 27.Rd1 Ne6? (better is 27...Bg7!?+=) 28.Ne4 (28.Bb6 Qb8 29.Be3 Rc8+–) 28...Ne4 29.Qe4 (29.Be4 Bc5 30.Bc5 Qc5 31.Bg6 h4+–) 29...Qe4+/– 30.Be4 Bc5 31.Bc6 Re7 32.Rd3 (32.Bc1!? Rc7+–) 32...Be3+/– 33.Re3 (33.fe3?! Nc5 34.Ra3 f5=) 33...Kf8 34.Kf1 Nc5 35.Ra3 Re6 36.e3 Rd6 37.Ke2 Ke7 38.Bg2 Kf6 39.Bf1 Ne4 40.Ke1 Nc5 41.Bc4 Rd7 42.Ke2 Ke5 43.f3 g5 44.Bd3 f5 45.Bc2 f4 46.gf4 gf4+= 47.Rc3 Rg7 48.Kf2+/– h4 49.Rc4 Rf7 50.Be4 fe3 51.Ke3 Re7 52.Rd4 Re8 53.Bc2 Rh8 54.Rc4 Rh6 55.Rg4 Kf6 56.f4 Ne6 57.Rg8 Nc5 58.Rc8 Ke7 59.Rc7 Kd8+/– 60.Rc6 Rc6 61.bc6 Kc7 62.Be4 Na4+/– 63.f5 Nc5 64.Bd5 Kd6 65.f6 Na6 66.Ke4 Nc7 67.Ba2 b5 68.Kf5 a4 69.Kg6 Ne8 70.f7 Ke7 71.fe8Q Ke8 72.Kf6 Kd8 73.Ke6 b4?? 74.Kd6 b3 75.Bb1 (75.Bb1 Kc8 76.Bf5 Kb8 77.c7 Kb7 78.c8Q Kb6 79.Qc5 Kb7 80.Qc7 Ka6 81.Bd3#; 75.c7 Kc8 76.Bb1 Kb7 77.Bf5 Ka6 78.c8Q Kb6 79.Qc5 Kb7 80.Qc7 Ka6 81.Bd3#) 1–0. Haik (2455) – Zueger (2425), Dubai, 1986. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7)

6.Na3 d5 7.Bg2=+.

6.Na3 d6 7.Bg2 e5 8.d3 Nbd7 9.0-0 Nc5 10.c4 (10.Nc4 Be6=+) 10...h6 (10...Bg4 11.Nc2=+) 11.e4 (11.Nc2 Bd7=) 11...Bg4 12.h3 (12.Nc2 Be6=) 12...Bd7 13.Rb1 Nh7 (13...Qc8 14.Kh2=+) 14.Bc1 (14.Nc2 Be6=) 14...Qe8 15.Ne1 (15.Re1 Nf6=+) 15...Ng5 16.h4 Nge6 17.Nac2 f5 18.ef5 gf5 19.Ne3 Qg6 (19...f4!? 20.Nd5 fg3 21.fg3 Rf1 22.Bf1 Kh8=+) 20.Nd5= Rae8 (20...Qe8 21.Bb2=) 21.h5 (better 21.Bf3!? f4 22.Bh5+–) 21...Qf7= 22.Bf3 (22.Ba3 Rd8=+) 22...Bc8 (22...f4 23.g4=+) 23.Be2 (23.Bd2 Nd4 24.Ba5 c6=+) 23...Kh8 (23...Nd4!? 24.Be3 Ne2 25.Qe2 Ne6–/+) 24.Ng2 (24.Nf3=) 24...Rg8 (better 24...f4!? 25.gf4 Nd4=+) 25.Nh4+= b6 26.Kh1 (26.Bb2 Bb7+=) 26...Nf8 (26...Bb7 27.Be3=) 27.Be3+– Nce6 (better 27...Bf6 28.Ng6 Kh7+=) 28.Qd2?? (28.Bf3 f4 29.Bd2 Nd4=) 28...Kh7?? (better 28...f4–/+) 29.Bf3+– Nc5 30.Bc5 (30.Qc2 Nfe6+–) 30...dc5 31.Rbd1 (31.Rfe1 Ne6+–) 31...Bf6+= 32.Nf6 Qf6 33.Qb2 (33.Rde1 Rg5+=) 33...Rg7 (better 33...Ne6 34.Bc6 Nd4 35.Be8 Re8=+) 34.Rd2 (34.Rde1 Bd7+=) 34...Bd7 (better 34...Ne6!?=+) 35.Re1 Rge7 (35...Kh8 36.Ng2 Qd6 37.Bd5+=) 36.Bg2 (36.Rde2 f4+–) 36...Kg8 (36...Qg5!?+=) 37.Bd5 Be6 (37...Kg7+–) 38.Bc6 (better 38.Re5!? Nd7 39.Re6 Re6 40.Qf6 Nf6 41.Be6 Re6 42.Nf5+–) 38...Bd7+= 39.Bd5 Be6 40.Bc6 Bd7 ½–½. Prevot,Jean_Luc (2055) – Onley,David E (2130), 27th NATO Chess, 2016. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0)

6.a4 b6 7.c4 Bb7 8.Bg2 c5 9.0-0 Ra7 10.d3 (10.d4 d6+=) 10...d5 11.cd5 Bd5 (11...Qd5 12.Qc2=) 12.Nbd2 Nbd7 13.Rc1 e6 14.Nc4 Qc7 15.Ne3 Ba8 16.Qb3 Nd5 (16...Rd8 17.Rfd1+=) 17.Bg7 Kg7 18.Nc4 N7f6 (18...e5 19.e3+=) 19.Qb2 Rb8 20.d4 cd4 21.Nd4 Qc5 22.Ne3 (22.e4 Ne7+/-) 22...Qb4 23.Qa1 Rc7?? (better 23...Ne3 24.fe3 e5 25.Rf6 Bg2+/-) 24.Nd5 (better 24.Ne6 Kg8 25.Nc7 Ne3 26.Na8 Ng2 27.Qf6 Ra8 28.Rc7+-) 24...Rc1 (24...Bd5 25.Rc7 Qd6+-) 25.Rc1 (better 25.Ne6 fe6 26.Qf6 Kh6 27.Nb4+-) 25...ed5 26.Nc6 (26.Ne6 fe6 27.Rc7 Kg8 28.Qf6 Qf8 29.Qe6 Kh8 30.Qe5 Kg8+-) 26...Qd6? (better 26...Bc6 27.bc6 Qd6+/-) 27.Nb8+- Qb8 28.g4 (better 28.Qc3!? Qd6+-) 28...g5 29.e3 Bb7 (29...Qd6 30.Qc3+-) 30.Qd4 (30.Qc3 Qd6+-) 30...Qd8 (30...Qd6 31.f4 Kg6 32.e4 Ng4 33.e5+-) 31.e4! Kg6 (31...de4 32.Qd8 Pinning (32.Qd8 Deflection)) 32.h3 Qd7 (32...h6 33.e5 Ne8 34.Rd1+-) 33.Rd1 (better 33.e5!? Ne8 34.Qb6 Kg7 35.Qa5 f6 36.ef6 Kf6 37.Qb6 Kg7+-) 33...Qe6 34.ed5 Qe2 (34...Qd6 35.Qd3 Kg7 36.Qg3 Qg3 37.fg3+-) 35.Qd3 (35.Rc1 h6+-) 35...Qd3 36.Rd3 Nd7 37.d6 Bg2 38.Kg2 Kf6 39.Re3 Ne5 (39...h6+-) 40.Re5! (40.Re5 Ke5 41.d7+-) 1-0. timofeevich (1940) - stronger (1905), Rated Blitz game, lichess.org, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5)

6.a4 d6 7.Bg2 e5 8.0-0 Nbd7 9.d3 Nc5 10.c4 Nfd7 11.Qc2 f5 (11...Nb6 12.Nc3 (12.Nfd2 Re8 13.Nc3 f5 14.Nb3 Nb3 15.Qb3=) 12...Re8 13.Nd2 f5 14.e3 Be6 15.Nd1=; 11...Re8 12.Nc3 (12.Nfd2 Nb6 13.Nc3 f5 14.Nb3 Nb3 15.Qb3=; 12.Nbd2 Nb6 13.h3 Qe7 14.Ra2 h6 15.Re1=; 12.Rd1 Nb6 13.Nfd2 Qg5 14.Nc3 Qh5 15.Ba3=; 12.h3 Nb6 13.Nbd2 Qf6 14.Rfd1 Be6 15.e4=) 12...Nb6 13.Nd2 f5 14.Ba3 e4 15.Bb2=) 12.Nc3 (12.d4 ed4 13.Bd4 f4 14.Bg7 Kg7 15.Nc3=) 12...Nb6 (12...f4 13.gf4 Rf4 14.Rab1 Rf8 15.Bc1=) 13.Nd5 (13.Rfd1 Be6 14.Bc1 e4 15.Ng5=) 13...Nd5 14.cd5 f4 (14...e4 15.de4=) 15.d4 (15.Be5+=) 15...Bf5 16.Qd1 e4 17.Ne1 (17.dc5? ef3 18.Bg7 fg2 (worse is 18...Kg7 19.Qd4 Qf6 20.Qf6 Kf6 21.Bf3+/–) 19.Kg2 Kg7 20.Qd4 Kg8–+) 17...g5 18.Ra3 Nd7 19.Bc1 Bh6 20.Kh1 Nb6 21.Rg1 Kh8 22.Qb3 Qe7 23.gf4 gf4 24.Bh3? (better is 24.Nc2–/+) 24...e3!–+ 25.Bf5 (25.fe3 Be4 (25...Bh3)) 25...ef2 (25...Rf5?! 26.fe3 fe3 27.Be3 Qe4 28.Nf3+=) 26.Be6 fg1Q (26...fe1B 27.Re1 Bg7 28.Rf1=) 27.Kg1 f3 28.Nd3 (28.Bh6 f2 29.Kf1 fe1Q 30.Ke1 Qh4 31.Qg3 Qh6 32.Rc3–+) 28...Bc1 (28...Qg7 29.Bg5 Qg5 30.Bg4 Qg4 31.Kf2 Qg2 32.Ke1 Qe2) 29.Nc1 Qg5 (29...Qg5 30.Kf2 fe2 31.Qf3 Qc1 32.Ke2 Qc2 33.Ke1 Rf3 34.Rf3 Qe4 35.Kf2 Qd4 36.Kg3 Nd5–+; 29...f2 30.Kf1 Qg5 31.e3 Qg1 32.Ke2 f1Q 33.Kd2 Qc1 34.Kd3 Qge3#) 0–1. Michalek – Walter, 1994. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0)

6.c4 c5 7.Bg2 d6 8.0-0 Nbd7 9.Na3 Re8 10.e3 Ne5 (10...e5 11.d3=) 11.Ne5+= (worse 11.Be5 de5 12.Ne5 Nd7 13.Nd7 A) worse 13...Ba1 14.Nc5 Bb2 15.Nb1+– (15.Nb7?! Qc7=); B) 13...Qd7=) 11...de5 12.Be5 Qd3 13.Bc3 Ng4 (13...Rd8 14.Qc2+=) 14.Rc1 Ne5 (14...Rd8!?+–) 15.f4+– Bg4 (15...Nd7 16.Bg7 Kg7 17.Rc3+–) 16.Qe1 (16.Qc2 Qc2 17.Rc2 Nd3 18.Bb7 Rab8+–) 16...Nd7 17.Bb7 Rad8 (17...Rab8 18.Bc6+–) 18.Bf3 (18.Bc6 a4+–) 18...Nf6 (18...Bf3!? 19.Rf3 Nf6+–) 19.Bg4+– Ng4 20.Nb1 Nf6 (20...Bf6 21.Bf6 Nf6 22.Rc3+–) 21.Ba5 Ra8 22.Rc3 Qf5 23.Ra3 h5 (23...Ra7 24.d4+–) 24.Bc7 (better 24.Nc3!? Qh3+–) 24...Ra3 25.Na3 Qd3 26.Qc1 (26.Nb1 Qc4 27.Nc3+–) 26...h4? (26...Ra8 27.Nb1 Ra2 28.b6+=) 27.gh4 (27.b6 Nd7 28.b7 hg3 29.hg3 Qe4+–) 27...Ng4? (better 27...Ra8 28.Nb1 Ra2+–) 28.h3 Qe2 (28...Nf6 29.b6+–) 29.f5 (better 29.hg4 Qg4 30.Kf2+–) 29...e5?? (better 29...Be5 30.Be5 Ne5+–) 30.fe6 (worse 30.hg4 Qg4 31.Kf2 Bf6+–) 30...Re6 31.Qd1 Qd3 32.hg4 Qa3 33.b6 Re3 (33...Qa2 34.b7 Re8+–) 34.de3 Qe3 35.Kg2 Qe4 36.Qf3 (36.Qf3 Qc4 37.b7+–) 1–0. Maes,Valeer – Frank,Albert, Belgian championship, 1975. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0)

6.Bg2 b6 7.Ne5 d5 8.0-0 Bb7 9.c4 e6 (9...c5 10.d4=) 10.a4 (10.Ba3 Re8=) 10...Re8 (10...c5 11.d4=) 11.Na3 Nbd7 12.d4 (12.Rc1 Ng4 13.Nd3 Ngf6+=) 12...Rb8 (12...Ne5!? 13.de5 Ng4=) 13.Nc6 Bc6 14.bc6 Nf8 15.cd5 (15.e3 h6+=) 15...ed5= 16.Rc1 Ne4 17.e3 f5 18.Nb5 g5 (18...Ne6 19.Ba3=) 19.Ba3 Ng6 20.Qd3 Qf6?? (better 20...f4+/-) 21.f3 (21.Nc7 Red8 22.Nb5 Rbc8+-) 21...Nd6 (21...Ng3 22.hg3 f4 23.gf4 (23.Nc7?! Re3 24.Qa6 Ra3+-) 23...gf4 24.e4+- (24.Nc7?! Re3 25.Qa6 Ra3+/-)) 22.Bd6 (22.Nc7!? f4 23.Nd5 Qe6+-) 22...cd6 23.c7 Ra8 24.Rc6 (24.f4 Ne7 25.fg5 Qe6+-) 24...Ne7 (24...Rac8 25.Rd6 Qf7 26.f4+- (worse 26.Rb6 f4+-)) 25.Rd6 Qf7 26.Rb6 Rec8 (26...Nc8 27.Rb8 Ra6 28.f4+-) 27.Nd6 Qe8 (27...Qf8 28.Rc1 Kh8+-) 28.Ne8 (28.Ne8 Re8 29.Qb5+-) 1-0. geochess (2190) - elfili17 (2020), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

6.Bg2 c5 7.c4 Ra7 8.d4 Ne4 (8...d6!?+=) 9.Qc2 d5 10.cd5 Bf5? (better is 10...Qd5 11.Nfd2 f5 12.Ne4 fe4 13.dc5 Bb2 14.Qb2 Nd7+/–) 11.g4+– Nf2 12.gf5 Nh1 13.Bh1 (13.Qc5!? b6 14.Qc4 Rc7+–) 13...Qd5+/– 14.e4 Qd7 15.Qc5 b6 16.Qd5 (16.Qb6?! Rb7 17.Qc5 Rc8=) 16...Qc7 (16...Qd5!? 17.ed5 gf5+/–) 17.Nbd2+– Rd8 18.Qc4 gf5 19.e5 Qc4 (19...Rc8!? 20.Qd3 e6+/–) 20.Nc4+– Rc7 21.Nfd2 Bh6 22.Ke2 Rdc8? 23.Kd3 Bd2 24.Nd2 Rc2 25.Rb1 a4 26.a3 R2c7 27.Bf3 Nd7 28.Bc6 Rd8 29.Ke2 Nf8? 30.d5 Ng6 31.Rf1 f4 32.Nc4 1–0. Soppe,Guillermo (2465) – Malajovich,S (2140), LXXVII ch–ARG, Tres de Febrero ARG, 2003. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

6.Bg2 c5 7.c4 b6 8.d3 d5 (8...Bb7 9.e4=) 9.cd5+= Nd5 10.Bg7 Kg7 11.0-0 Ra7 (11...Bb7 12.Qc2+=) 12.Qd2 Bb7 13.Qb2 (13.d4 Nd7+=) 13...Kg8 (13...Nf6 14.Nbd2+=) 14.Na3 Nf6 15.Nc4 Bf3 16.Bf3 (16.ef3?! Rd7+=) 16...Rd7 17.Ne5 Rd4 18.a3 Qc7 19.e3 Rdd8 20.d4 (20.Rfd1 Qc8+/–) 20...cd4 21.ed4 Qd6 22.Rfd1 Nd5 23.Rac1 Qf6 24.Qb3 e6 25.h4 (25.Ng4 Qg5+=) 25...h5 (25...Rd6 26.Nc4 Rdd8 27.Bd5 ed5 28.Ne5+=) 26.Bd5 (26.Be4 Rd6+=) 26...Rd5 27.Rc7 Qd8 (27...Kg7 28.Rb7+=) 28.Qc2+/– Rd4 (28...Nd7 29.Ng6 fg6 30.Qg6 Kh8 31.Qh6 Kg8 32.Qe6 Kg7+–) 29.Rd4+– Qd4 30.Ng6 Rd8 (30...fg6 31.Qg6 A beautiful mate combination) 31.Nf4 Qd1 (31...Nd7 32.Nh5 Ne5 33.Qe2+/–) 32.Qd1+– Rd1 33.Kg2 Nd7 34.Nh5 Nc5 (34...Kf8 35.Nf4+/–) 35.g4 Rd4 36.f3 (36.Rc8 Kh7 37.f3 Rd3+–) 36...Ra4 (36...Kf8 37.Nf6 Kg7 38.Ne8 Kf8 39.Rc8+/–) 37.Rc8 Kh7 38.Rf8 Kg6?? (better is 38...f5 39.Rb8 fg4 40.Nf6 Kg6 41.Ng4 Ra3 42.Rb6 Rb3+/–) 39.Rg8 Kh6 (39...Kh7 40.Nf6 Kh6 41.g5) 40.Nf6 (40.Nf6 Rg4 41.fg4 Ne4 42.g5 Ng5 43.hg5) 1–0. Smyslov,Vassily – Pietzsch, Dortmund, 1961. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

6.Bg2 c5 7.c4 d5 8.a4 d4 9.e3 Bg4 (9...de3 10.fe3 Qd3 11.Ne5=) 10.ed4+= cd4 11.h3 Bf3 12.Qf3 Ra7 13.d3 e5 14.Nd2 Nbd7 15.0-0 Nc5 16.Rfe1 Re8 17.Ne4 (17.Ra3!?=) 17...Nfe4=+ 18.de4 b6 19.Red1 Rd7 20.Ba3 (20.Bc1 Qf6 21.Qf6 Bf6=+) 20...Bf8 (20...Na4!? 21.Be7 Qe7 22.Ra4 Rc8-/+) 21.Bc5=+ Bc5 22.Rd3 Qc7 23.h4 (23.Rc1 Rc8=) 23...Bb4 24.Rc1 Bc3 25.Bh3 Rde7 26.Bf1 Qd6?? (26...Qc5 27.h5-/+) 27.Rdd1?? (better 27.Rcc3 Qb4 28.Rc1+-) 27...Qb4-/+ 28.Bd3 (28.h5 Qa4 29.h6 Re6-/+) 28...Qa4 29.Rc2 (29.h5 Qb4-+) 29...Qb4 (29...Qb3 30.Rcc1-+) 30.Qe2 (30.Ra2 Ra8-/+) 30...Qc5 (better 30...a4-+) 31.f4? (better 31.Ra2-/+) 31...ef4-+ 32.gf4 (32.Qf3 fg3 33.Qg3-+) 32...f5 (better 32...Re4! 33.Qg4 Re1 34.Re1 Re1 35.Kh2 Re3-+) 33.e5-/+ a4 34.Ra2 a3 35.Qc2 Bb2 36.Qb3 Ra7 37.Rf1 Kg7 38.Rf3 (38.h5 g5! 39.fg5 Re5-+) 38...Qe7 39.Rh3 (39.h5 Bc1 40.hg6 hg6-+) 39...h6 (better 39...Bc1-+) 40.Qc2 Kh7 (better 40...Kh8-/+) 41.Rg3? (41.h5 g5 42.Qg2 Qe6-/+) 41...Rc7?? (41...Qh4 42.Rf3-+) 42.Bf5? (better 42.h5 g5 43.Qf2-/+) 42...gf5-+ 43.Qf5 Kh8 44.Rg6 (44.Qh5 Qe6 45.Kf2-+) 44...Qh7 (44...Qh4 45.Kg2 Rg7 46.Rg7 Kg7 47.Qd7 Re7-+) 45.Qf6 Rg7 46.h5 Reg8?? (46...Kg8 47.Qb6 Rg6 48.Qg6 Qg6 49.hg6 Kg7-+) 47.f5 (better 47.Kf2+-) 47...d3=+ 48.Rb2?? (better 48.Kf1 d2 49.Ke2=+) 48...ab2-+ 49.e6 b1Q 50.Kg2 Qc2 51.Kg3 d2 52.Rg7 (52.Rg7 Qg7 53.Qg7 Rg7 54.Kf4 Qc4 55.Ke3 d1Q 56.f6 Qcd4; 52.Qa1 d1Q 53.Qd1 Rg6 54.hg6 Qc7 55.Qd6 Qd6 56.Kf3 Qdd3 57.Kg4 Qf5 58.Kh4 Qcf2). geochess (2125) - Fetzo (2000), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

6.Bg2 c5 7.c4 d5 8.cd5 Qd5 9.Nc3 =.

7.0-0 c6 8.c4 d5 9.d3 Nbd7 10.Na3 Nc5 11.Qc2 Ne6 12.e3 Ne8 (12...cb5!? 13.Nb5 Bd7=) 13.Bg7+/- N8g7 14.bc6 bc6 15.Rfc1 Qd6 16.Qc3 (16.cd5 cd5 17.Nb5 Qa6+/-) 16...Ba6 17.Rab1 Nf5 (17...Rfb8 18.d4+/-) 18.d4 Rab8 19.Ne5 Rfd8 20.h4 (20.c5!? Qc7 21.Rb4+/-) 20...Rb1= 21.Rb1 c5 22.dc5 Qc5 23.Nd3 Qc7 24.Nb4 Bc4 25.Rc1 Rc8 26.Nc4 (better 26.Qd2 Qb8 27.Nc4 Rc4 28.Nd5 Rc1 29.Qc1+=) 26...Qc4 (better 26...dc4!? 27.Bc6 Nd6=+) 27.Nd5+/- Qc3 28.Rc3 (worse 28.Nc3 Nd6=) 28...Rb8 29.Be4 Nd6 30.Bc2 (30.Ne7 Kf8 31.Ng6 hg6-/+) 30...Rb2 31.Ba4 (better 31.a3!?+/-) 31...Ra2+= 32.Bd7 Ne4 33.Rc8 (worse 33.Ne7 Kf8 34.Nd5 Nc3 35.Nc3 Rc2-/+) 33...Kg7 34.f3 (34.Nc3 Nc3 35.Rc3 Nd8=) 34...Ng3 35.Ne7 Ne2 36.Kf1 Ng3 37.Kg1 Kf6 38.Nd5 Ke5 39.Bc6 (39.Be6 fe6 40.Nb4 Ra1 41.Kf2 Nf5=) 39...Ng7 (39...Rc2 40.Nb4 Rd2 41.f4 Kd6 42.Bb5=+) 40.f4 Kd6 41.Bb7 N7f5 42.Rd8 Kc5 43.Nc3 (43.Rc8 Kd6=) 43...Rc2 (43...Ra3 44.Nd1 Kb6-/+) 44.Rd3?? (better 44.Ne4 Kb6 45.Ng3 Ng3 46.Rd7=) 44...Kb6-+ (44...Nh4?! 45.Ne4 Ne4 46.Be4-/+) 45.Bf3 Rc3?? (better 45...Nh4 46.Na4 Kb5 47.Rd5 Ka4-+) 46.Rc3+/- Nh4 47.Kf2 Ngf5? (47...Nf3 48.Kf3 Nf5 49.e4+/-) 48.e4 (48.Bd5!? Ne7 49.Bf7 Nhf5+-) 48...Ng7 (48...Nf3 49.Kf3 Nd4 50.Ke3+/-) 49.e5 (49.Rb3 Kc6+-) 49...Nhf5 (49...Nf3 50.Kf3 h5 51.Rc8+-) 50.Bd5 (50.Rc6 Ka5 51.Be4 Ne6 52.Bf5 gf5+-) 50...Ne6 51.Rc6 (51.Be6 fe6 52.Rc8 Kb5+-) 51...Kb5+/- 52.Rc4 Nfd4 53.Ke3 Nb3. Hjartarson,J (2525) - Kaasen,Tor Fredrik (2395), Titled Tuesday, 2021. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.Na3 c6 8.0-0 d6 9.c4 Nbd7 10.d3 (10.bc6!? bc6 11.Nd4+/-) 10...e5= 11.Rb1 Qe7 12.bc6 bc6 13.Nd2 d5 14.cd5 cd5 15.Nb5 Nc5 16.Ba3 Be6 17.Qc2 Rfc8 18.Rfc1 Nfd7 (18...Qd8 19.Qd1 Nfd7 20.Nc3=) 19.Qd1 (19.Nc3!?+/-) 19...Bf8 20.d4 ed4 21.Nd4 Qg5 22.N2f3 (22.e4 Bg4 23.N2f3 Qh5 24.ed5 Nf6+=) 22...Qh5= 23.Ne6 fe6 24.Nd4 Qg4 (24...Qe5 25.Bb2 Qd6 26.Nf3=) 25.e3 (25.Bc5 Nc5 26.Rc5 Bc5 27.Ne6+-) 25...Qd1= 26.Rd1 Kf7 27.Bb4 Ra7 (27...Rab8 28.g4=+) 28.a3 Rb7 29.h4 Nb3?? (29...Rb6!?=) 30.Bf8 (better 30.Ne6 Bb4 31.Bd5+- (31.ab4?! Rb4 32.Nf4 Ndc5+=)) 30...Nf8+= 31.e4 de4 32.Be4 Rd7 33.Nf3 (33.Nc6 Rdc7 34.Ne5 Ke7+=) 33...Rd1 (33...Kf6 34.Re1=) 34.Rd1 Rc1 (better 34...Rc3!? 35.Rd3 Rd3 36.Ne5 Kf6 37.Nd3 Nd7=) 35.Rc1+/- Nc1 36.Bc6 Ne2 37.Kf1 Nc3 38.Ne5 Ke7 39.Nc4 (39.f4 Kd6+/-) 39...Nd7+= 40.Ke1 Nc5 41.Kd2 Nd5 42.f3 h6 43.Ne3 (43.Kc2 Kf6=) 43...Kd6 (43...Ne3 44.Ke3 e5 45.f4+=) 44.Be8 (44.Nd5 ed5 45.Be8 g5+=) 44...g5 45.h5 Nf6 46.Bg6 Nd5? (better 46...Nb3!? 47.Kc3 Kc5=) 47.Ng4+/- Nb6 (47...Nb3!? 48.Kd3 Nc1 49.Kc4 Ne2 50.Nh6 Ng3 51.Nf7 Ke7+-) 48.Nh6+- Nc4 49.Kc3 Na3 (49...Ne5+-) 50.Nf7 Ke7 51.h6 Nb5 52.Kb2 (better 52.Kb4 Nd6 53.Nd6 Kd6+-) 52...Nd3 (52...Kf6 53.Bh5 Nd3 54.Ka1+-) 53.Bd3 (better 53.Ka1 Nd6 54.h7 Nf7 55.Bf7 Kf7+-) 53...Kf7 (53...a3 54.Ka2 Nc3 55.Kb3+-) 54.Bb5 Kg6 55.g4 (55.f4!? Kh6 56.Bc4 e5 57.fe5 Kg6+-) 55...Kh6 56.Ba4 1-0. Arencibia Rodriguez,W (2485) - Khader,Sam (2380), UAE National Day GM Stars blitz, 2020. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.c4 c6 8.Na3 d6 9.0-0 e5 10.d3 Re8 11.bc6 Nc6 12.Rb1 d5 13.Nd2 Be6 14.Ba1 Qd7 15.cd5 Bd5 16.Nac4 Bg2 17.Kg2 Ra7 18.Nb6 Qf5 19.e4 Qe6 20.Na4 Qa2 (20...Bf8 21.Nc3 Rd8 22.Nc4+=) 21.Nc3+= Qa5 22.Nb5 Raa8 23.Nc4 Qd8 24.Nbd6 Re6 25.Nb7 Qe7 26.Bc3 h5 27.h3 h4 28.g4 Bh6 29.Nba5 Na5 30.Ba5 Nh7 31.Bb4 Qc7 32.Bc3 Bf4 33.Rb5 Ng5 34.Qb3 Rc8 35.Ba5 Qc6 36.Rb6 Qc5 37.Bb4?? (better is 37.Rb4+/–) 37...Rb6–+ 38.Nb6 Qb6 39.Qa3 (39.Qa4–+) 39...Rc2 40.Qa8 (40.d4 Qd4 41.Qa8 Kh7–+) 40...Kg7 (40...Kh7 41.Be1 Qe3 42.Qh8 Kh8 43.Rh1 Qf3 44.Kg1 Rc1 45.Kf1 Qh1 46.Ke2 Qe1) 41.Be7 Qe3 (41...Qe3 42.Bf6 Kf6 43.Qh8 Ke7 44.Qh4 Kd7 45.Rb1 Qf3 46.Kg1 Rf2 47.Rb7 Kc6 48.Rb6 Kc7 49.Rc6 Kc6 50.Qf2 Nh3 51.Kf1 Qf2) 0–1. Spiridonov,Nikola (2490) – Westerinen,Heikki MJ (2485), Eksjoe SWE, 1976. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.c4 c6 8.bc6 bc6 9.0-0 d5 10.cd5 cd5 11.a3 Nc6 12.d3 Bd7 (12...Qb6 13.Qc2=) 13.Nbd2 Qa5 14.Ne5 Ne5 15.Be5 Rfc8 16.Nf3 Ne8 (16...Ra6 17.Rc1=) 17.Qb1 (17.Bg7 Kg7 18.Ne5 Nf6=) 17...Be5 (17...f6 18.Bf4=) 18.Ne5 Rab8 19.Qa2 Be6 20.Rfc1 (20.d4 Qc3 21.Bd5 Rb2 22.Be6 Ra2 23.Bf7 Kg7 24.Ba2 Qd4=+) 20...d4=+ 21.Nc4 Qa6 22.Qd2 Bc4 23.dc4 Rc4 24.Bd5 (24.Rc4 Qc4 25.Rc1 Qb3 26.Qd4 Qa3=) 24...Rc1-/+ 25.Rc1 e5 26.h4 (26.Qa2 Qa7-/+) 26...Qd6 (26...Nf6!? 27.Bf3 Qe6-/+) 27.Qa2=+ Qe7 28.Rc6 (28.Rc4!?=+) 28...Nf6-/+ Black plans e4 29.Ra6 Rd8 30.Bc4 (30.Bc6 d3 31.ed3 Rd3-/+) 30...e4 (30...Ne4 31.Qb2-+) 31.Ra4 e3 (better 31...d3 32.Qb1 Qd7-+) 32.f4? (better 32.f3!?-/+) 32...d3! 33.Bb3 (33.Bd3 Rd3; 33.ed3 e2 Passed pawn) 33...de2 34.Qe2 Rd2 35.Qe1 (35.Qc4 Qb7 36.Qf7 Qf7 37.Bf7 Kf7 38.Ra7 Kf8 39.Ra8 Kg7 40.Ra7 Kh6 41.Re7-+) 35...Qe4 (better 35...Qb7 36.Qf1 e2-+) 36.Re4+- Ne4 37.Qe3 Rd4 (37...Rb2 38.Bf7! Kf7 39.Qe4 Rb6+-) 38.Qd4 Ng3 (38...Kf8 39.Qd7 Nd6 40.Qd6 Kg8 41.Qf6 g5 42.Qf7 Kh8 43.Qf6) 39.Qe5 (39.Qf6 Nh5 40.Qf7 Kh8 41.Qf8) 39...Nf5 (39...Nf1 40.Qe8 Kg7 41.Qf7 Kh6 42.Bd1 Ne3 43.Qf8) 40.Qb8 (40.Qe8 Kg7 41.Qf7 Kh6 42.Qf8 Kh5 43.Bd1 Kh4 44.Qf6 Kh3 45.Qb2 Ne3 46.Qh2) 40...Kg7+- 41.Kf2 (better 41.Qa7 Nh6 42.a4+-) 41...Kh6 42.Qb7 (42.Qf8 Kh5 43.Bd1 Kh4 44.Qd8 f6 45.Qf6 Kh3 46.Qc6 Ng3 47.Qg2 Kh4 48.Qg3) 42...Nh4 43.Qf7 Nf5 44.Qf8 Kh5 45.Qb4 (45.Bd1 Kh4 46.Qf6 Kh3 47.Qc6 Ng3 48.Qg2 Kh4 49.Qg3) 45...h6 (45...Kh6 46.Kg2 Kg7 47.Qb7 Kh6 48.Bg8 Kh5 49.Qf3 Kh6 50.Qh3 Nh4 51.Qh4 Kg7 52.Qh7 Kf6 53.Qf7) 46.Ke1 (46.Bd1 Kh4 47.Qe1 Ng3 48.Kg2 h5 49.Qg3) 46...Kg4 (46...Kh4 47.Bd1 Ne3 48.Qe7 Kg3 49.Qe3 Kh2 50.Qf3 h5 51.Kf2 h4 52.Qg2) 47.Bd1 Kg3 48.Qd2 Nh4 (48...Ne3 49.Qe3 Kh2 50.Qe2 Kg3 51.Qg4 Kh2 52.Bf3 h5 53.Qg2) 49.a4 (49.Qf2 Kh3 50.Kf1 h5 51.Kg1 Nf3 52.Bf3 h4 53.Qg2) 49...Kh3 50.Qe3 Kh2 (50...Kg2 51.Bg4 h5 52.Qf2 Kh1 53.Kf1 hg4 54.Qh4) 51.Qf2 (51.Kf2 Nf5 52.Qf3 Ne3 53.Qg3 Kh1 54.Qh4) 51...Ng2 (51...Kh3 52.Kf1 h5 53.Kg1 Nf3 54.Bf3 h4 55.Qg2) 52.Kd2 (52.Kf1 Kh3 53.Qg2 Kh4 54.Qg4) 52…Kh3 1-0. Mendonca,Leon Luke (2530) - Purtseladze,M (2270), Titled Tuesday 1st Dec, 2020. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.c4 d6 8.0-0 e5 9.d3 Nbd7 10.a3 Nc5 11.Nfd2 Bg4 12.f3 Be6 13.Nc3 Qd7 14.Qc2 c6 15.bc6 bc6 16.Nce4 (16.Rab1 Rfe8=) 16...Nfe4+= 17.Ne4 Nb3 18.Rab1 h6 19.Bc3 (19.f4 d5 20.Nd2 Qa7 21.Kh1 Nd4 22.Bd4 ed4=) 19...d5+= 20.Nd2 Nd2 21.Bd2 Rfc8 (21...dc4 22.f4 Qd4 23.Rf2–/+) 22.Be3 Bf8 23.Qb2 d4 (23...Qe7!? 24.cd5 cd5 25.Qe5 Bg7–/+ (25...Qa3?? 26.Bd4 f6 27.Qe6 Kh7 28.Qf6 Kg8 29.Qg6 Bg7 30.Qg7)) 24.Bd2 Qc7 25.Qc1 Rcb8 26.Rb8 Rb8 27.Bh6 Bh6 28.Qh6 Rb3 29.f4 ef4 30.Rf4 Qe5 31.Be4 Ra3 32.Rh4 Qg7?? 33.Qg5+– Ra1 34.Kg2 f6 35.Qa5 f5?? 36.Qd8 Kf7 37.Bc6 a3 38.Be8 Kg8 39.Bd7 Kf7+– 40.Be8 Kg8 41.Bg6 Qf8 42.Rh8! Kh8 43.Qf8 Bg8 44.Qh6 (44.Qh6 Bh7 45.Qh7; 44.Qf6) 1–0. Stripunsky,Alexander (2555) – Ayrapetyan,Yuri, Dos Hermanas Internet qual–D, 2009. (=1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0 5.Bg2 a5 6.b5)

7.a4 cb5 8.ab5 b6 9.Nd4 (9.c4 Qc7=) 9...Ra7 10.0-0 Bb7 (10...d5 11.Na3=) 11.c4 (11.Nc3!?+=) 11...Bg2= 12.Kg2 d5 13.d3? (better 13.Nf3!?=) 13...dc4-/+ 14.dc4? (better 14.Ra4!? cd3 15.Qd3-/+) 14...Rd7-+ 15.f4? (15.e3 e5 16.Qf3 ed4 17.Bd4 Rd4 18.ed4 Qd4-+) 15...e5 (better 15...Ng4 16.Qb3 Bd4 (16...Rd4?! 17.Qf3-+) 17.Bd4 Rd4-+) 16.fe5-/+ Ng4 17.Qd3 (17.Qd2 Be5 18.e3-+) 17...Be5 18.e3 Re8 (better 18...Nh2 19.Rg1 Ng4-+) 19.Nd2?? (better 19.Rf3-+) 19...Ne3! 20.Qe3 Bd4 (20...Bd4 21.Qf3 Bb2-+) 0-1. Lance5500 (2590) - AstanehChess (2545), lichess.org, 2016. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.g3 0-0 5.Bg2 a5 6.b5)

7.a4 cb5 8.ab5 Qb6 9.Nd4 Nh5 (9...d5!?+=) 10.e3 Bd4 (better is 10...Nf6=) 11.Bd4+– (worse is 11.ed4 Qb5 12.Ra2 Qc4+=) 11...Qb5 12.Nc3 Qc4 (12...Qa6 13.Nd5 Qd6 14.Nb6+–) 13.Nd5 e5 14.Be5 Re8 15.Bd6 Na6 (15...Re6 16.d3 Qa6 17.Ba3+–) 16.d3 Qd4 17.g4 Ng7 18.0-0 Qa7 19.Nf6 Kh8 20.Ne8 Ne8 21.Be5 Kg8 22.Ra5 b6 23.Bd4 Bb7 24.Rb5 (24.e4!? Nec7+–) 24...Bg2 25.Kg2 Nac7 (25...Nc5 26.Qf3 Rc8 27.Rfb1+–) 26.Rb6 Qa2 27.Rb2 Qe6 28.Qf3 Ra5 29.Qe4 Qd6 (29...h5 30.h3+–) 30.Rb8 Kf8 (30...f5 31.gf5 (worse is 31.Re8 Kf7 32.Re7 Qe7 33.Qe7 Ke7+–) 31...gf5 32.Qh4+–) 31.Bc3 f5 32.Qb4 Ra6 33.Qd6 Rd6 34.Bb4 (34.Bb4 Ke7 35.gf5 gf5 36.Rb1+–) 1–0. Ciejka – Plater,Kazimierz, Poland (year?).

7.a4 b6 8.c4 Bb7 9.0-0 cb5 10.ab5 d6 (10...d5 11.cd5 Qd5 12.Nc3=) 11.d4+= Qc7 12.Nbd2 Nbd7 13.Rc1 Rac8 14.Re1 Ne4 15.Ne4 Be4 16.Nd2 Bg2 17.Kg2 Qb7 18.f3 d5 19.e3 dc4 20.Nc4 Qd5 21.Qa4 e5 (21...Rc7 22.Re2=) 22.Red1 (22.e4!? Qe6 23.d5+/-) 22...ed4 (22...e4 23.f4=+) 23.Bd4= Bd4 24.Rd4 Qe6 25.Rcd1 Nc5 (25...Ne5 26.Ne5 Qe5 27.Qb3=) 26.Qa3 (better 26.Qa2 Nb7 27.Re4+/-) 26...Rfe8?? (26...Rc7 27.e4=) 27.e4 (better 27.Nd6+-) 27...Nb7= 28.Ne3 Rc5 29.Nd5 Rc2 (29...Nd6!? 30.Nb6 Rc2 31.R4d2 Rd2 32.Rd2 Ne4 33.fe4 Qb6=) 30.R4d2+/- Rec8? (better 30...Rd2 31.Rd2 Qe5+/-) 31.Ne7 Kg7 32.Nc8 Qc8 33.Qd3 Rc3 (33...Rd2 34.Rd2 Qc5+-) 34.Qd4 Kg8 35.Qb6 Rc2 36.Qd4 Qc5 (36...Rc5 37.Rb2+-) 37.Qc5 (better 37.Qd7!? Nd6 38.Qc6 Qc6 39.bc6 Rc6 40.Rd6 Rc4+-) 37...Rc5 (37...Nc5?? 38.Rc2 Na4 39.Rc6+-) 38.Rd5 Rc2 39.R1d2 Rc1 (39...Rc8 40.Rd7 Rb8 41.Rc2+-) 40.Ra2 (40.Rd7!? Nc5 41.Rc7 a4+-) 40...Rb1 (40...Rc7 41.Kf2+-) 41.f4 (41.Rc2 a4 42.Rc8 Kg7+-) 41...Kf8 (41...Kg7 42.e5+-) 42.e5 (better 42.Rc2 a4 43.Rc8 Kg7+-) 42...Ke7 43.Rad2 Ke6 44.g4 a4 45.R5d4 a3 46.Ra4 Rb5 47.Ra3 Nc5 48.Kg3 (48.Rd6 Ke7 49.f5 Rb2 50.Kf3 Rb3 51.Rb3 Nb3 52.f6 Ke8 53.Ke4+-) 48...Ne4-+ 49.Kf3 (49.Kg2 Nd2 50.Ra6 Ke7 51.Ra7 Kf8 52.g5-+) 49...Nd2 50.Ke2 Nc4 51.Ra6 (51.Ra4 Kd5 52.g5 Nb2-+) 51...Rb6 (51...Kd5 52.Ra7 Ke4 53.Rf7 Rb2 54.Kd1 Rh2 55.e6-+) 52.Ra4 Rc6 53.Kf3 h6 (53...g5 54.Ra8-+) 54.Ke4 Nd2 55.Kd3 Nb3 (55...Nf3 56.Ra2-+) 56.Ke3 (56.Ra3 Rb6 57.Kc4 Nc1-+) 56...Nc5 (56...Rc3 57.Kf2-+) 57.Rc4 (better 57.Ra7-+) 57...Kd5?? (57...g5!? 58.h4-+) 58.Rc1?? (58.Rd4 Ke6 59.Rc4-+) 58...Ne6 (58...g5!? 59.Rd1 Ke6 60.Rd8-+) 59.Rd1 Kc5 (59...Kc4 60.f5 gf5 61.gf5-+) 60.f5 gf5 61.gf5 Ng5 (61...Ng7 62.Ke4 Kb5 63.e6 fe6 64.f6 Rc4 65.Ke5 Rc5 66.Kd6 Ne8 67.Ke7 Nf6 68.Kf6=) 62.Kf4? (better 62.h4 Nh3 63.Rd7=+) 62...Ra6-+ 63.Rc1 Kd4 64.Rd1 Kc3 65.h4 (65.Rc1 Kd2 66.Rc4 Kd3-+) 65…Kc2 (65...Kc2 66.Rd7 Ra4 67.Kg3 Ne4 68.Kg2 f6=+) 0-1. timofeevich (2155) - stronger (2050), Rated Classical game, lichess.org, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.a4 b6 8.d4 d5 9.0-0 cb5 10.ab5 Bd7 (10...Bb7 11.Nbd2+=) 11.Nbd2 (better is 11.Ne5!?+/–) 11...Bb5= 12.Re1 (12.c4!? Be8 13.cd5 Nd5 14.Nc4+=) 12...Nbd7 13.e4 de4 14.Ne4 Ne4 15.Re4 Rc8 16.c3 Nf6 17.Re5 Nd5 18.Re1? (better is 18.Qb3!? Bc4 19.Qa4–/+) 18...Nc3–+ 19.Bc3 Rc3 20.Qd2 Rd3 21.Qe2 Qd7 (21...a4 22.Qe4 Rb3 23.Qe7–+) 22.Qe7 Qf5 (better is 22...Qe7 23.Re7 Bd4 24.Nd4 Rd4–+) 23.Rac1?? (better is 23.Rab1 Rd4 24.Nd4 Bd4 25.Kh1–+) 23...Rf3–+ 24.Bf3 Qf3 25.d5 (25.Qd6 Ba6 26.Re3–+) 25...Bd4 26.Rf1 (26.Re3 Be3 27.Qe3 Qd5 28.Qb6–+) 26...Re8 27.Qh4 Bd3 (27...Bf1 28.Qh7 Kh7 29.Rf1 Bf2 30.Rf2 Re1 31.Rf1 Rf1) 28.Qd4 (28.Qf4 Qf4 29.gf4 Bf1 30.Kf1 Rd8–+) 28...Be4 (28...Be4 29.Qe4 Re4 30.Rc8 Kg7–+) 0–1. gbsrao (2360) – croach (2465), net–chess.com, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 c6)

7.a4 Qc7 8.0-0 d5 9.d4 cb5 10.ab5 Bf5 11.Nc3 Nbd7 12.h3 b6 (better is 12...Nb6!? 13.Qc1 Ne4–/+) 13.g4= Be6 14.Ng5 Ne8?? (better is 14...Rac8+=) 15.Ne6+– (15.Nd5?! Bd5 16.Bd5 Rd8+/–) 15...fe6 16.Nd5! ed5 17.Bd5 Kh8 18.Ba8 Nef6 (18...e5 19.Bc6 ed4 20.Bd4+–) 19.Bc6 Rd8 20.e4 Qf4 (20...Nb8 21.e5 Nd5 22.Bd5 Rd5 23.Qe2+–) 21.e5 (21.Ra3 Qc7+–) 21...Ng8 (21...Ne5 22.de5 Rd1 23.Rad1 Ng8+–) 22.Bc1 Qe5 (22...Qf7 23.Qe2 e6+–) 23.de5 (23.de5 Be5 24.Ra3+–) 1–0. gbsrao (2280) – croach (2530), net–chess.com, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 c6)

7.a4 d6 8.Na3 Nbd7 (8...e5 9.0-0=) 9.bc6+= bc6 10.Nd4 Qb6 (10...Nb8 11.Nc6 (11.Bc6? Nc6 12.Nc6 Qd7–+) 11...Nc6 12.Bc6+=) 11.Nc4 (11.Nc6 Re8 12.Bf6 Nf6 13.Ne7 Re7 14.Ba8+=) 11...Qc5 (11...Qc7 12.Nc6 (12.Bc6? Bb7–+) 12...Bb7 13.Ne7 Kh8 14.Bb7 Qb7 15.0-0+=) 12.Nc6 Qc4?? (better is 12...d5 13.N4e5 Ne5 14.Ne5 Bf5=) 13.Ne7+– Kh8 14.Ba8 Qa6 15.Bg2 Bb7+= 16.f3 Re8 17.Ng6 fg6 18.Rb1 Nc5 19.Kf2 Na4= 20.Ba3? Nd5?? 21.e3= Qa7 22.Rb3 Nac3 23.Qc1= White gets in control 23...Na2 24.Qe1 Bd4 25.Bb2 Bb2 26.Rb2 Nab4 27.Qa1 Kg8 28.Re1 Rc8 29.Bh3+= Rc2?? 30.Be6+– Kf8 31.Rc2 Nc2 32.Qh8 Ke7 33.Qg8 Kf6 34.Qf7 Ke5 35.f4 Ke4 36.Bd5 Kd3 37.Bb7 Kd2 38.Re2 Kc1 If Black now only could play Nxe3... 39.Rc2! (39.Rc2 Kd1 40.Qb3 Qe3 41.Ke3 a4 42.Qb1#) 1–0. Nabbing – Stiessel, 1993. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.c4 cb5 8.cb5 Qb6 9.a4 d5 10.Bd4 Qd6 11.0-0 Bg4 12.Ne5 Bf5 13.Nc3 Nh5 14.f4 e6 15.e3 f6 16.Ng6 hg6 17.g4 Bd3 18.gh5 Bf1 19.Kf1 f5 20.hg6 Bd4 21.Qh5 Qc7 22.ed4 (better is 22.Nd5 Qd7 23.Rc1+–) 22...Qg7? (22...Rd8 23.Re1 Qf4 24.Bf3 Qc7+–) 23.Re1+– Nd7 24.Re6 Nf6 25.Qf5 Kh8 (25...Rad8 26.Nd5 Nd5 27.Bd5 Rd5 (27...Rf5?? 28.Re8) 28.Qd5 Rf4 29.Ke2 Qd4 30.Re8 Kg7 31.Re7 Kf6 32.Qd4 Rd4+–) 26.Nd5 (26.Nd5 Nh7 27.Qe5 Qe5 28.de5+–) 1–0. Smith,Douglas Royston (2110) – Weggen,Rick (1830), WS/H/042 ICCF, 2006. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.c4 cb5 8.cb5 Qb6 9.a4 Ne4 10.d4 d5 11.0-0 Bf5 12.Nbd2 Nd7 13.Nh4 Rfc8 14.Nf5 gf5 15.e3 e6 16.Ne4 fe4 17.Qb3 Rc4 18.Rfc1 Rac8 19.Bf1 Rc1 20.Rc1 Rc1 21.Bc1 Qc7 22.Bd2 Bf8 23.Be2 b6 24.Qc3 Qc3 25.Bc3 Ba3 26.Kf1 Kf8 27.Ke1 Ke7 28.Kd1 Bd6 29.Ke1 f5 30.Bd1 e5 31.Kd2 ed4 32.Bd4 Be5 33.h3 Kd6 34.g4 f4 35.g5 f3 36.h4 Bd4 37.ed4 Nf8 38.Ke3 Ne6 39.Bb3? (better is 39.Bc2!?+=) 39...Ng7–+ 40.Kf4 Ke6 (40...Nf5 41.Bc2 Nd4 42.Be4 de4 43.Ke4–+) 41.Bc2 Nf5 42.h5 Nd4 43.h6 Kf7 (43...Nc2 44.g6 e3 45.gh7 ef2 46.h8Q+–) 44.Bb1 Kg6 45.Kg4 Ne6 46.Ba2 Ng5 47.Bd5 Kh6 48.Bc6 (48.Kf4 Kh5–/+) 48...e3 49.fe3 f2 50.Bg2 Ne4! 51.Kf3 (51.Be4 f1Q Combination) 51...f1Q 52.Bf1 Nd2 (52...Nd2 53.Kf2 Nf1 54.Kf1 Kg5–+) 0–1. Skalkotas,Nikolaos – Qendro,Llambi, Balkaniad (Men), 1982. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 c6)

7.c4 d5 8.Na3 dc4 9.bc6 Nc6 10.Nc4 Be6 11.Na3 (11.Rc1 b5 12.Nce5 Ne5 13.Ne5 Ra6=) 11...Rb8 (11...Qb6!? 12.Rb1 Nb4–/+) 12.Nb5 Qb6 13.Qa4 Ne4 14.Nfd4 (14.Qe4? Bb2 (14...Qb5?! 15.Bg7 Kg7 16.0-0=) 15.Rb1 Bf5 (15...Qb5?! 16.Qc2–/+) 16.Qf5 gf5 17.Rb2 e5–+) 14...Bd5 15.0-0 (15.Be4 Be4 16.f3 Bd3 17.ed3 Rfd8–/+) 15...e5 (15...Rfd8 16.Nc6 A) 16...Bc6?! A1) 17.Be4? Bb2 (17...Qb5?! 18.Qb5 Bb5 19.Bg7 Kg7 20.d3=; 17...Bb5?! 18.Qb3=) 18.Rab1 Rd4–+ (18...Qb5?! 19.Qb5 Bb5 20.Rb2 Be2 21.Re1–/+; 18...Bb5?! 19.Qb3–/+); A2) 17.Bg7 Nd2 18.Be5 Bb5 19.Qf4=; B) 16...bc6 17.Bg7 cb5–+ (17...Kg7?! 18.Nc3 Nc3 19.dc3=+)) 16.Nb3=+ Ra8 17.d3 Nf6 18.Ba3 Rfd8 19.Bc5 (better 19.Rac1!? Bg2 20.Bc5=) 19...Bb3–/+ 20.Bb6 Ba4 21.Nc3 Bc2 22.Bd8 Rd8 (worse 22...Nd8 23.Rac1 Bd3 24.ed3+–) 23.Rac1? (better 23.Bc6 bc6 24.Rac1 Bd3 25.ed3=) 23...Nd4–+ 24.Rfe1 (24.Bb7 Bh6 25.e3 Bd3–+) 24...Rc8 25.Nd5 Kf8 (25...Nd5 26.Bd5 Rc7 27.e3–/+) 26.Nb6 (26.Nf6 Bf6 27.e3 Nb5–/+) 26...Rc3 (26...Rc7!? 27.Na8 Rc5 28.Bb7–/+) 27.Bb7–/+ Bh6 28.e3 Rc7 (better 28...e4!? 29.Be4 Ne4 30.ed4 Bc1 31.de4 Bd2–+) 29.Bg2=+ Ne6 30.Nc4 Bd3 31.Ne5 Rc1 (31...Bf5!?=) 32.Rc1+= Be4 33.Be4 Ne4 34.Rc8 Ke7 35.Ra8 Kf6 36.Ng4 Kg7 37.Nh6 Kh6 38.Ra5 f5 39.Re5 N6c5 (39...N6g5!? 40.Kg2 Nc3+–) 40.f3+– Nd3? (better 40...Nd7 41.Re7 Nec5+–) 41.Rb5?? (better 41.Rd5 Ndc5 42.fe4 Ne4 43.a4+–) 41...Nd2 (41...Nc3 42.Ra5=) 42.a4 (42.Kg2 Nc4 43.Rb3 Nde5+–) 42...Nf3+= 43.Kg2 Nfe5 (better 43...Nfe1!? 44.Kf1 Nf3+–) 44.a5+– Nc6 45.a6 1–0. algernon (2515) – croach (2340), net–chess.com, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 c6)

7.bc6 bc6 8.0-0 Na6 9.c4 Rb8 10.Bc3 Nc5 11.d3 Qc7 12.Nbd2 Ra8 (12...d6 13.Nb3 Nb7 14.a4=) 13.Qc2 d6 14.Rab1 Bd7 15.Rb2 Rfb8 16.Rfb1 Rb2 17.Rb2 a4 18.Rb4 e5 19.a3 Qa7 20.h3 (20.d4 Bf5 21.Qb2 Nfe4 22.Ne5 de5 23.dc5 Nc3 24.Qc3 Qc5=) 20...Nh5 21.Kf1 Bf6 22.Qb2 Bd8 (22...Qc7!?+=) 23.d4+/– ed4 24.Bd4 Qa6 (24...Qc7 25.Qc2+/–) 25.Ne5 (25.Bc5 dc5 26.Rb8 Bc8+/–) 25...Be8 (25...de5 26.Bc5 f6 27.Kg1+/–) 26.Ng4 Nb3 27.Ne4 (27.Nb3 ab3 28.Qb3 f5 29.Nh6 Kf8+–) 27...c5+/– 28.Bc5! dc5? (28...Nc5 29.Nh6) 29.Nh6 Kf8 30.Qh8 Ke7 31.Rb7 Bd7?? (31...Qb7 32.Qe5) 32.Ng5 (32.Ng8 Ke6 33.Nc5 Nc5 34.Qd4 Ng3 35.fg3 Qd6 36.Bd5 Kf5 37.Qg4 Ke5 38.Qf4) 32...Qc4?? (better is 32...Bc7! 33.Qc3 Re8 34.Rc7 Qd6 35.Rd7 Kd7=) 33.Qe5+– Kf8 34.Nh7 1–0. Arnaudov,Petar – Mikhevic, Bulgaria, 1975.

8.0-0 Qb6 9.Nc3=.

8.0-0 Nbd7 9.Qc1 Re8 10.Na3 e5 11.d3 Rb8 12.Re1 e4 13.de4 Ne4 14.Bg7 Kg7 15.c4 Qf6 16.cd5 cd5 17.Nc2 Nb6 18.Qf4 (18.Ne3 Bd7=) 18...Qf4=+ 19.gf4 Bg4 (19...Nc3 20.Nfd4=+) 20.Nfd4 Nc3 21.Ne3 Bd7 22.Ra3 Rbc8 23.h4 Ne4 (23...Nba4 24.Bd5 b6 25.Kg2=+) 24.Rd1 ½-½. arcandor (2205) - marekt (2260), gameknot.com, 2021.

8.0-0 Re8 9.d3 Nbd7 10.Nfd2 (10.Nbd2 Nc5=) 10...Qc7 (10...Nc5 11.d4 Ne6 12.c4+=) 11.Na3 (11.Nc3 e5+=) 11...c5 (11...Nc5 12.c4 Bg4 13.Nf3+=) 12.c4= d4 13.Nc2 e5 14.h3 (14.Ne1 Nf8=) 14...Ra7 15.Bc1 (15.e3 Nb6+=) 15...Nf8 16.e4 Nh5 17.Rb1 b6 18.Nf3 Ne6 19.Nce1 h6 (19...Qe7 20.Nh2+=) 20.Bd2+= Kh7 21.Nh4 Nf6 22.Kh2 Ng8 (22...Qd6 23.Nef3+=) 23.Rh1 Ne7 24.Rb2 Qd6 25.Kg1 Rf8 26.Bc1 Bf6 27.Nhf3 Bg7 28.h4 (28.Nh4 Bb7–/+) 28...f6 (28...h5 29.Nc2+=) 29.Nh2 (29.h5 g5=) 29...Ng8 (29...h5+=) 30.f3 (better is 30.h5!? g5 31.Ng4=) 30...Raf7 (30...h5 31.Nf1–/+) 31.Rf2 (31.h5 g5–/+) 31...Ne7 32.Nf1 Bd7 (32...h5 33.Nd2–/+) 33.Bh3 (33.h5 g5 34.Nd2–/+) 33...Bc8 (33...h5 34.Kg2–/+) 34.Ng2 (better is 34.Bg2!?=) 34...Bb7 35.Rh2 (35.h5 g5–/+) 35...Ba8 (35...h5 36.Nd2–+) 36.f4 (36.h5 g5 37.Bf5 Nf5 38.ef5–/+) 36...Nd8 (36...f5!? 37.Nd2–/+) 37.g4 (37.f5!? gf5 38.ef5=) 37...f5–/+ 38.ef5 gf5 39.g5 e4 40.h5 e3 41.g6 (41.Nfe3 de3 42.Ne3–/+) 41...Kh8 (better is 41...Ng6 42.hg6 Qg6–+) 42.gf7+= ef2 43.Kf2 Rf7 (43...Nf7 44.Nh4 Qf6 45.Nf3+=) 44.Ne1 (44.Nh4 Qf6 45.Bg2 Bg2 46.Kg2 Qe6=) 44...Ne6 45.Qd2 Ng8 (45...Bb7 46.Bg2 Bc8 47.Nf3+=) 46.Bg2 (46.Ng3!?=) 46...Bg2+= 47.Ng2 Nf6 48.Rh3 Bf8 (48...Ng4 49.Kg1+=) 49.Nh2 (49.Ng3!?+=) 49...Rg7 ½–½. Hammer,Jon Ludvig – Lund,Frode_Ryan (1685), NOR–ch int U18, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 c6)

8.0-0 Bg4 9.d3 Nbd7 10.Nbd2 Re8. Haroldlee123 (1785) - craig4000 (2080), ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

8.Na3 e5 9.Ne5+= Ne4 10.d3 Nc5 (10...Qd6 A) worse 11.de4 Qb4 12.Kf1 Qb2=+; B) 11.Be4? Qb4 (worse 11...de4 12.0-0+=) 12.c3 Qb2-+; C) 11.0-0 Ng3 12.Nac4 dc4 13.Nc4 Ne2 14.Qe2+=) 11.c4+/- dc4 12.Nac4 (12.dc4 Qe7 13.f4 Rd8-/+) 12...Be6 (12...cb5 13.ab5 a4 14.0-0+/-) 13.0-0 cb5 14.ab5 a4 (14...Bc4 15.Nc4 Bb2 16.Nb2+/-) 15.d4 (15.Ba3 Bc4 16.Nc4 Ba1 17.Bc5 Bd4 18.Bb7 Bc5 19.Ba8 a3+-) 15...Nb3+/- 16.Bb7 Ra7 17.Nc6?? (better 17.Ra4 Ra4 18.Qb3+-) 17...Qb6?? (better 17...Nc6 18.d5 Ncd4 (18...Na1?! 19.Bg7 Kg7 20.Qa1 Kg8 21.Bc6 Bd5 22.Rd1 Bc4 23.Rd8 Rd8 24.b6=; 18...Rb7?! 19.bc6 Rb4 20.Bg7 Kg7 21.Ra4 Ra4 22.Qb3 Qd5 23.Qa4 Qc4 24.Qc4 Bc4 25.Rc1 Be2 26.c7-/+; 18...Bd5?! 19.bc6 Bc4 20.Qd8 Rd8 21.Bg7 Kg7 22.c7-+; 18...Qd5?! 19.Qd5 Bd5 20.Bg7 Kg7 21.Bc6 Bc4 22.b6-+) 19.de6 Na1 20.Bd4 Qd4 (20...Rb7?! 21.ef7 Rbf7 22.Bg7 Qd1 23.Rd1 Kg7 24.Ra1=; 20...Bd4?! 21.e7 Bf2 22.Kf2 Qe7 23.Bd5-+) 21.ef7 Kf7 22.Bd5 Ke7 23.Qd4 Bd4-+) 18.Na7 (better 18.Nb6 Rb7 19.Na4 Na1 20.Qa1+-) 18...Na1 (18...Bc4 19.Ra4 Na5+-) 19.Nb6 (19.Nb6 Nb3 20.d5 Bb2 21.de6+-; 19.Ba1?! Bc4 20.Qa4 Qb7 21.Qc4 Qa7=) 1-0. chesserstein (2195) - jpruk (1825), Rated Bullet game, lichess.org, 2014. (=1.Nf3 (A05: Reti Opening: 1 Nf3 Nf6) 1...Nf6 2.g3 g6 3.Bg2 Bg7 4.b4 0-0 5.Bb2 a5 6.b5)

8.Na3 Bg4 9.h3 Bf3 10.Bf3 Nbd7 11.d4 Re8 12.c4 e5 13.0-0 e4 14.Bg2 dc4 (14...Rc8 15.Rc1=) 15.Nc4 (15.bc6 Nb6=) 15...cb5 (15...Nb6 16.Nb6 Qb6 17.Qb3=) 16.ab5+= b6 17.Ne5 Rc8 18.Nc6 Qc7 19.d5 (19.Qb3+=) 19...Nh5 (better 19...Qd6!? 20.Qc2 Nc5=) 20.Bg7 Ng7 (better 20...Kg7 21.d6 Qb7+/-) 21.Qb3?? (better 21.d6!? Qb7 22.Ne7 Re7 23.de7+-) 21...Ne5 (21...Nc5!? 22.Qe3 Nf5=) 22.Rfd1 Nc6 23.bc6 (23.dc6 Re7+=) 23...Nf5+= 24.Rac1 (24.Kh2 Nd6=) 24...Nd6 25.Qa4 Kg7 (25...b5 26.Qa3=) 26.e3 f5 (26...b5 27.Qa1 f6 28.Rd4=) 27.g4 (27.Bf1 Red8+=) 27...fg4= 28.hg4 Rb8 (28...Kg8 29.Bf1=) 29.Rd4 Rbc8 (29...Re5!?+=) 30.Be4+/- Ne4 (better 30...Re5!? 31.Bd3 Rf8+/-) 31.Re4+- Qd6 (31...Red8 32.Qd4 Kg8 33.Qf6+-) 32.Qd4 (32.Re8 Re8 33.c7 Rc8+-) 32...Kg8 (32...Kf7 33.Rf4 Kg8 34.Rf6+- (34.Qb6?! Qd5 35.c7 Qa2+-)) 33.Re8 (33.Rb1 Re4 34.Qe4 Rb8+-) 33...Re8 34.Qb6 (better 34.Rb1 a4+-) 34...Re4? (better 34...Qd5 35.Qd4 Qe6+-) 35.f3 (better 35.f4 Re8 36.Qc5+- (worse 36.Qa5 Qe7 37.Qe1 Qd6+-)) 35...Re3 (35...Qg3 36.Kh1 Qf3 37.Kh2 Rg4 38.Qd8 Kg7 39.Qd7 Kh6 40.Qg4 Qg4-+) 36.Qe3+- Qg3 37.Kf1 Qh3 38.Ke2 (38.Ke2 Qh2 39.Kd3+-) 1-0. geochess (2135) - JMC (1950), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

8.d3 Nbd7 9.0-0 e5 10.Nbd2 (10.Ne5!? Re8 11.Nf3+=) 10...Re8= 11.e4 d4 12.Nb3 (12.Nc4 cb5 13.ab5 Qc7=) 12...c5 (12...cb5 13.ab5 a4 14.Qd2-/+) 13.Ba3 (13.c3 dc3 14.Bc3 b6=) 13...b6 (13...c4 14.Nbd2 Nb6 15.dc4 Na4 16.Qe2=+) 14.c3 dc3 15.Qc2 Nh5 (15...h6 16.Qc3 Bb7 17.Rac1=) 16.Qc3 f5 (better 16...Qf6!?=) 17.ef5+/- gf5 (17...e4 18.Qc4 Kh8 19.de4 Ba1 20.Ra1 gf5 21.Bb2 Ndf6 22.ef5 Bf5 23.Ng5+-) 18.Qc4 Kh8 19.Bc1 (19.Ng5 Qg5 20.Ba8 Nb8+/-) 19...Nf8 (19...e4 20.Qd5 Ra7 21.de4 Ba1 22.Na1 Nhf6= (22...fe4? 23.Qh5 Nf6 24.Bb2+-)) 20.Bg5 (20.Ng5 Ra7 21.Nf7 Rf7 22.Qf7 Ng3 23.fg3 Be6+/-) 20...Qc7 (20...Be6 21.Qh4 Qd3 22.Nc5 bc5 23.Rfd1=+) 21.Rad1 (better 21.Qh4!? e4 22.Qh5 ef3 23.Bf4+/-) 21...Be6= 22.Qc2 Qf7 (22...Nf6 23.d4 Bb3 24.Qb3 cd4 25.Rc1=) 23.Nbd2 Ra7 24.Nc4 Qc7 (24...Bc4 25.Qc4 (worse 25.dc4 e4=+) 25...Qc4 26.dc4=) 25.Rfe1+/- Pawn e5, live or die! 25...Ng6 26.Bd2 Bd5? (26...Bc4 27.Qc4 Nf6 28.Ng5+=) 27.Bc3 (27.Nfe5 Ne5 28.Bd5 Qd8 29.Ne5 Re5+-) 27...Qf7? (better 27...Bc4!? 28.dc4 e4+=) 28.Be5 (28.Nd6!? Qg8 29.Ne8 Bb3+-) 28...Ne5 29.Nfe5 Be5 30.Re5 (30.Ne5 Qf6 31.Nc6 Bc6 32.bc6 Re1 33.Re1 f4+-) 30...Bg2 (30...Re5 31.Ne5 Qe6 32.Re1 Bg2 33.Kg2+-) 31.Re8 (31.Nd6!? Re5 32.Nf7 Rf7+-) 31...Qe8 32.Kg2 Rg7 (32...Qa8 33.Kg1 Qd8 34.d4 cd4 35.Qf5+-) 33.Qb2 (better 33.Nb6!? f4 34.Qc5 fg3+-) 33...Qe6 (better 33...Qa8 34.f3 Nf4 35.Kf2 Nh3 36.Ke3 Ng5+-) 34.Ne3 (better 34.Kf1 f4 35.Re1+-) 34...f4+= 35.Nf1 (35.Nc4 Qd5 36.Kf1 Qh1 37.Ke2 Qh2+=) 35...Qd5 36.Kg1 (36.Kg1 fg3 A) worse 37.Ng3 Nf4 38.Kf1 Qf3-/+ (38...Nd3?! 39.Qf6 c4 40.Qb6=); B) 37.fg3=) 1-0. zistambo (1760) - franzzi (1730), Rated Classical game, lichess.org, 2014. (=1.Nf3 (A05: Reti Opening: 1 Nf3 Nf6) 1...Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

8.d4 Ne4 9.Nbd2 (9.0-0 cb5 10.ab5 Qb6=) 9...Bf5 (9...cb5 10.ab5 Nd6 11.0-0=+) 10.Ne4 (10.Nh4 Nd2 11.Qd2 Bg4=) 10...Be4=+ 11.0-0 Nd7 (11...Qc7 12.c3=+) 12.Ng5 (12.bc6 bc6 13.e3 c5=+) 12...Bg2–/+ 13.Kg2 e5 (13...Nb6 14.Nf3–/+) 14.Nf3 (14.Nh3 e4=+) 14...e4–/+ 15.Ne5 (15.Nd2 cb5 16.ab5 Qb6–/+) 15...Ne5 16.de5 c5 (16...Re8 17.c4–/+) 17.Qd2 (17.f4!?=+) 17...d4–/+ 18.Qf4 (18.e3 Be5 19.Rad1 Qd5–/+) 18...Qd5 19.Rfd1 (19.c3 Be5 20.c4 Bf4 21.cd5 Bd6–+) 19...Be5 (19...Qe5 20.Qe5 Be5 21.e3–+) 20.Qg5 (20.c4!? Bf4 21.cd5–/+) 20...e3 21.f3 (21.Kg1 f6 22.Qg4 f5–+) 21...Qe6 (21...f6 22.Qh4 Qc4 23.Qe4 Qe2 24.Kh1–+) 22.h4? (22.Rd3 Rfe8 23.Raa3 Rad8–+) 22...f5 (22...f6 23.Qh6 Qc4 24.Re1 Qc2 25.Ba3–+) 23.h5 (23.Rd3 f4–+) 23...Bf6 (23...Qc4 24.Re1 Qc2 25.Ra2–+) 24.Qh6 Bg7 25.Qg5 f4! 26.g4? (26.gf4 Qf5 Double attack (26...Qf5 Decoy)) 26...Rf6?? (better 26...Qc4 27.Kf1 Bf6–+) 27.Qc5 Rc8 28.Qa7 gh5 (better 28...Rc2 29.Bd4 Qc4–+ (29...Re2 30.Kg1 Qd5 31.Rf1–+)) 29.g5?? (29.Bd4 Rg6 30.Qb7 hg4 31.Kf1 gf3 32.Qf3–+) 29...Rg6 30.Rg1 (30.Rh1 Rg5 31.Kf1 Rg2 32.Qb7 Rf2 33.Ke1 Qc4 34.Qd5 Qd5 35.Rc1 Qc4 36.Bd4 Qe2) 30...Rg5 (better 30...Rc2 31.Rae1 Rb2 32.Qb7 Bf8–+) 31.Kh2 Rg1 32.Rg1 Rc2?? (better 32...Qe7 33.Rg2 Rc2–+) 33.Qb8 (better 33.Rg7!? Kg7 34.Qd4 Kg6 35.Qg7 Kf5 36.Qh7 Qg6 37.Qd7 Kg5 38.Qd8 Kh6 39.Qf8 Kg5 40.Qe7 Kh6 41.Qf8 Kg5 42.Qe7 Kh6 43.Qf8=) 33...Qc8–/+ 34.Qc8 Rc8 35.Bd4 Rc7 36.Rg7?? (better 36.Be5 Rf7 37.Bc3–/+) 36...Rg7–+ 37.Bg7 Kg7 38.Kh3 b6 39.Kh4 Kg6 40.Kh3 Kg5 41.Kg2 Kf5 42.Kh3 Ke5 43.Kh4 Kd4 44.Kh5 Kc3 45.Kg4 Kd2 46.Kf4 Ke2 47.Ke4 Kd2 0–1. gbsrao – croach, net–chess.com, 2017. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 c6)

7.0-0 a4 8.Na3 c6 (8...Bg4 9.c4=) 9.Rb1 (9.c4 cb5 10.cb5 Qd6=) 9...Ne4 (9...c5 10.c4+=) 10.c4 Bb2 11.Rb2 Qd6 12.bc6 bc6 (worse is 12...Qa3 13.cb7 Bb7 14.Rb7+=) 13.Nb1 (13.Nc2 Nd7=) 13...Nd7 14.d3 Nef6 15.cd5 cd5 16.Nc3 The isolani on a4 becomes a target 16...Qa3 (16...Ba6 17.Qd2=) 17.Qd2+= Ba6 18.Nd4 e6 19.Ncb5 Bb5 20.Nb5 Qe7 21.Rc1 Rfb8 22.h3 Rb6 23.Nd4 (23.d4 Ne4 24.Be4 de4+=) 23...Qd6 24.Rb6 Qb6 25.Qc3 Kg7 26.e3 Ra5 27.Qc7 Ra6 (27...Qc7 28.Rc7 Rc5 29.Rc5 Nc5 30.Bf1=) 28.Qc8 Qb2 29.Rc2 (worse is 29.Qa6 Qc1 30.Bf1 Qa3–/+) 29...Qb1 30.Kh2 Rb6 31.Qd8?? (better is 31.Qc3=) 31...e5–+ 32.Rc8 (32.Rc7 ed4 33.Rd7 Nd7 34.Qd7 de3 35.fe3 Qa2–+) 32...ed4 33.g4 Rb8 (better is 33...Kh6 34.Qc7 de3 35.Qf4 Kg7 36.Qe3 Qb4–+ (worse is 36...Qa2 37.g5–+)) 34.g5?? (better is 34.Qh8 Kh6 35.f4 Rc8 36.g5 Kh5 37.Qg7–+) 34...Rc8 35.gf6 (35.Qc8 de3 36.fe3 Qa2 37.e4–+) 35...Nf6 36.Qc8 de3 37.fe3 Qa2 38.e4 de4 39.de4 (39.h4 Qb2 40.Kg3 e3–+) 39...Ne4 (better is 39...Qb2 40.Qc7 a3 41.e5–+) 40.Qb7 (40.Qc1 a3 41.Kg1 Qf2 42.Kh2–+) 40...Nf6 41.Kg1 Qb3 (better is 41...Qa1 42.Bf1 a3–+) 42.Qc7 (42.Qb3 ab3 43.Bf1–+) 42...Qb1 43.Bf1 a3 44.Kh2 0–1. Spiridonov,Nikola (2220) – Gochev,Plamen (1960), Albena BUL, Grand Europe Cup, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 d5)

7.0-0 c5 8.bc6 Nc6 9.d3 e6 10.c4 dc4 11.dc4 Rb8 12.Nc3 Nd7 13.Rb1 Nc5 14.a3 b6 15.Qc2 Ba6 16.Rfd1 Qe7 17.Nb5 Rfd8 18.Bg7 Kg7 19.e3 Rd1 20.Rd1 Rd8 21.Nfd4 Nd4 22.Nd4 (22.ed4 Nb7+=) 22...Bb7= 23.Nc6 Rd1 24.Qd1 Qc7 25.Nd4 Bg2 26.Kg2 Qd6?? (26...Nd7 27.Nb5 Qc6 28.Kh3–/+) 27.Qa1 (better is 27.Nf5! ef5 28.Qd6+–) 27...Kf8 28.f3?? e5–+ 29.Nb5 Qd2 30.Kh3 Qe3 31.Qc3?? Qc3 32.Nc3+= Nd7 33.Nd5 f6 34.Kg2 Kf7 35.Kf2 Ke6 36.Ke3 f5 37.h4 h5 38.Nc7 Kd6–+ 39.Nb5 Kc5 40.Nc7? Kc4 41.Ne6 b5 42.f4 e4 43.Nd4 b4 44.ab4 ab4 45.Nc2 Kc3 (45...Kc3 46.Nb4 Kb4–+) 0–1. Delzant,Pierre Richard – Parisot,Anthony, FRA–ch op–D Pau, 2008. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d5)

7.0-0 c6 8.a4 cb5 (8...Qb6 9.Nc3=) 9.ab5 Nbd7 10.d3 (10.Nc3 Nc5=) 10...b6 (10...a4 11.Na3=) 11.Nbd2 (11.c4 Bb7=) 11...Bb7 (11...Nc5 12.c4=) 12.c4 dc4 13.Nc4 Rc8 14.Qb3 Nc5 15.Qa3 (15.Qc2 a4=) 15...Bd5 (15...a4 16.Be5=) 16.Rfc1+= Ne6 17.Nce5 Rc1 18.Rc1 Nc7 (18...Re8 19.e4 Bb7 20.Bh3+=) 19.e4 Ba8 (19...Nb5? 20.Qa4 Nd6 21.ed5 Nd5 22.Nc6+–) 20.Nc6 Nb5 21.Nd8 (21.Ne7 Kh8 22.Qb3 Na7+=) 21...Na3 22.Nc6 Bc6 23.Rc6 Nb5 24.Rb6 Nd6 (24...Nc7+/–) 25.Bf6+= Bf6 26.e5 Nc8 27.Rb5 (27.ef6 Nb6 28.fe7 Re8–+) 27...Bg7 28.Ra5 Nb6 29.Ra7 e6 30.d4 h6 31.Rb7 (31.Kf1 Nd5+–) 31...Nd5 32.Nd2 Ra8 (32...Nc3 33.Kf1+–) 33.Bd5 ed5 34.Rd7 (34...Ra2 35.Nf1+–) 1–0. Pommerel,Wim – Gnuechtel, CiF–CP5–95–0005B, 1995.

7.0-0 Nbd7 8.Nc3 =.

7.0-0 Nbd7 8.c4 dc4 9.Na3 Nb6 10.Ne5 Nfd5 11.Nac4 Nc4 12.Nc4 Bb2 13.Nb2 Be6 14.Nd3 Qd6 15.a3 Rfc8 16.Qb1 c5 17.bc6 bc6 18.Qc2 c5 19.Nb2 Rab8 20.Nc4 Qa6 21.d3 Nb6 22.Ne5 c4 23.Nc6 Rb7 24.Na5 Rbc7 25.Nc4 Nc4 26.dc4 Rc4 27.Qb2 R8c7 28.Rfd1 f6 29.Rd2 Kg7 30.h4 Qa4 31.Bf3 Rc3 32.Qb4 Qb4 33.ab4 Rb3 34.Rd4 (34.Ra6 Bf7 35.Rb6 Rc4+/–) 34...Bf7 (better is 34...Bc4!?=) 35.Rad1+/– f5 36.Rd7 Rd7 37.Rd7 Rb4 38.Re7 Kf6 39.Ra7 Rb6 40.Kh2 h6 41.g4 f4?? (better is 41...fg4 42.Bg4 g5+/–) 42.g5!+– (42.g5 hg5 43.hg5 Kg5 44.Rf7+–) 1–0. Soppe,Guillermo (2450) – Mahia,Gustavo (2360), Olavarria Magistral op 5th, 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 0-0 6.Bg2 d5)

7.0-0 Nbd7 8.c4 c6 9.a4 (9.Nc3 dc4 10.bc6 bc6=) 9...Re8 (9...dc4 10.bc6 bc6 11.Na3=) 10.d4 (10.cd5 cd5 11.d3 e5=) 10...Nb6 11.Nfd2 (11.cd5 cd5 (worse 11...Qd5 12.Ne5 Qe6 13.bc6+–) 12.Nbd2 Bf5=) 11...Nc4 12.Nc4 dc4 13.Na3 Be6 (13...Bd7=) 14.Rb1 (14.bc6 Bd5 15.cb7 Rb8=) 14...Rc8 (14...cb5 15.ab5 Bd5 16.Rc1–/+) 15.e4 (15.bc6 bc6 16.e4 Rb8=+) 15...c3=+ 16.Bc3 cb5 17.Nb5 Bc4 18.e5 Bf1 19.Bf1 (19.Qf1 Nd5 20.Ba5 Qa5 21.Bd5 Qa4 22.Bb7 Rb8=+) 19...Nd5 20.Bd2 b6 21.Bh3 Rc6 22.Na7 Rc4 (22...Rc7!? 23.Nb5 Rb7=+) 23.Qb3= Rd4 24.Nc6 Rd2 25.Nd8 Rd8 26.e6 (26.f4 Nb4=) 26...f5 (26...Bd4!? 27.ef7 Kf7=+) 27.Rd1= Rd4 28.Bf1 Bf6 29.h4 Rd6 30.h5 (30.Rd4 Bd4 31.Qf3 Nf6=) 30...Kg7 (30...Rd1 31.Qd1 Nf4 32.Qb3 Nh5 33.Bb5=+) 31.Qf3 (31.Rd4 Bd4 32.Bc4=+) 31...Rd1=+ 32.Qd1 Nc3 33.Qc1 gh5 34.Qf4 Kg6 35.Qf3 (35.Qc4 h4–/+) 35...Re6 (35...Na4?! 36.Bd3 Rd3 37.Qd3=) 36.Bd3 Re5 37.Qc6 ½–½. Reid,Malcolm (2090) – Parmet,Daniel (2135), FICGS, 2017. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 d5)

7.Na3 c5 8.0-0 Qd6 =.

7.Na3 c5 8.bc6 bc6 9.c4 Qb6 10.Bd4 Qa6 11.Rb1 Bf5 (worse is 11...dc4 12.Rb6 Qa7 13.Rc6+/–) 12.d3 Rd8 13.0-0 Qc8 14.cd5 cd5 15.Qd2 Nc6 16.Bb6 Rf8 17.Rfc1 Qd7 18.Nb5 Rfc8 19.Nbd4 Nd4 20.Nd4 Bh3 21.Rc8 Qc8 22.Ba5 Bg2 23.Kg2 e5 24.Nb3 Qf5 25.h3 h5 26.Nc5 g5 27.Bb6 e4 28.a4 h4 29.Rb5 Re8 (29...g4 30.hg4 (30.gh4? gh3 31.Kh1 Qf2–+) 30...h3 31.Kg1 h2 32.Kh1 Qf2 33.Rb1 Qg3 34.Qe1 Qe1 35.Re1 Ng4 36.de4 de4 37.a5–/+) 30.Nb3 (30.gh4 e3 31.fe3+=) 30...g4= 31.Qf4 (31.hg4 h3 (worse is 31...Qg4 32.Rb4=) 32.Kg1 Ng4 (32...Qg4?! 33.Rb4=) 33.de4 h2 34.Kh1 Nf2 35.Kh2 Qh3 36.Kg1 Qg3 37.Kf1 Ng4–+) 31...Qg6 (better is 31...gh3!? 32.Kg1 Qh5 33.Qh4 Qe2 34.Qh3 ed3–+ (34...Qd3?! 35.Bd4=)) 32.Bd4+= gh3 33.Kh3 hg3 34.fg3 (better is 34.Qg3 Qf5 35.Kh2+=) 34...Qh5–/+ 35.Qh4 (35.Kg2 ed3 36.ed3 (36.Bf6?? de2 37.Rb8 e1Q 38.Re8 Qe8–+) 36...Re2 37.Kf1–+) 35...Qf5–+ 36.Kg2 ed3 37.e4 Re4 (37...Re4 38.Rb8 Ne8–+; 37...Qe4?! 38.Qe4 de4 39.Rg5–+) 0–1. Hellmayr,Alois (2240) – Freitag,Manfred (2400), AUT–ch Werfen, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5 d5)

7.Na3 c5 8.bc6 bc6 9.c4 Nbd7 10.Rb1 Nc5 11.d3 Ba6 (11...Rb8 12.0-0=) 12.Qc2+= Ne6 13.0-0 (13.Be5 Rc8+=) 13...Rc8 14.Bh3 (14.Ne5 Qd6+=) 14...Nd7 (14...Rb8!?+=) 15.Be6+/– fe6 16.Ng5 Bb2 17.Ne6 Ba3 (17...Qe8 18.Rb2 Rf6 19.Ng5+/–) 18.Nd8+– Rfd8 19.Qa4 (better is 19.cd5 cd5 20.Qb3+–) 19...Bb4? (better is 19...Bc5+/–) 20.Rb4!+– ab4 21.Qa6 Nf6 (21...d4 22.c5 Nc5 23.Qc4 Rd5 24.Qb4+–) 22.Rc1 (22.Qb7 Kf7 23.Qb4 Ra8+–) 22...c5 23.Qe6 Kf8 24.cd5 Nd5 25.Rc4 Nf6 (25...Rc7 26.Qe5 Rd6 27.e4+–) 26.d4 Rb8 (26...Rc7 27.dc5 Rdc8 28.c6+–) 27.dc5 b3 28.ab3 Rb3 29.Rc1 Rb7 30.e4 Rc7 31.Kg2 Rdc8 32.c6 Ne8 33.Rc3 Nd6 34.e5 Nf5 35.g4 Nh6 36.h4 Kg7 37.Kg3 Nf7 38.g5 Nd8 39.Qd5 Nc6 40.e6 Kg8 41.f3 Kg7 42.h5 gh5 43.Kh4 Kg8 44.Kh5 Rd8 45.Rc6 Rd5 46.Rc7 Re5 47.Re7 Kf8 48.Rf7 Ke8 49.Rf6 Ke7 50.Kh6 Ra5 51.f4 (51.f4 Ra1 52.Kh7+–) 1–0. Saliba – Lampitt, Siegen, 1970. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d5)

7.a4 Nbd7 8.Na3 (8.0-0 c6=) 8...Ne4 (8...Nb6 9.c4=+) 9.Bg7= Kg7 10.c4 c6 (10...Ndc5 11.cd5 Qd5 12.0-0+=) 11.d3 Nef6 12.d4 Ne4 13.0-0 Ndf6 14.Ne5 Qc7 (14...cb5 15.Nb5 dc4 16.Qc2+=) 15.Rc1+/- White plans c5 15...Qd6 16.c5 Qc7 17.h4 (17.e3 Nd7 18.b6 Qd8+/-) 17...h5 (17...Bf5 18.Qe1 Nh5 19.g4+/-) 18.e3 (18.b6 Qd8+/-) 18...Ng4 19.Qe1 (better 19.b6 Qb8 20.Ng4 Bg4 21.Qe1+=) 19...Ne5=+ 20.de5 Qe5 21.Be4 (21.f4 Qf5=+) 21...Qe4 22.Qc3 e5 23.f3 Qf5 (23...Qa4!? 24.Qe5 f6-/+) 24.e4=+ Qh3 (24...Qf6 25.f4 d4 26.Qd3=+) 25.f4 (better 25.Qe5!? f6 26.Qf4=) 25...d4-/+ 26.Qd3 Bg4 27.Nc4 f6 (27...f5 28.Nd6=+) 28.Rc2 (28.fe5 f5 29.e6 fe4 30.Qd4 Kh7 31.Qe4 Be6 32.bc6 Qg3 33.Kh1 Rae8-+) 28...ef4 (better 28...Be6!?=+) 29.Rf4+= g5? (better 29...Bd1 30.Rh2 Qe6+=) 30.Rh2?? (better 30.hg5 cb5 31.ab5+-) 30...Qh2 (better 30...Be2! 31.Qd2 Qg3 32.Rg2 Qd3 (32...Qf4? 33.Qf4 Bc4 34.hg5+-; worse 32...gf4 33.Qe2 Qg2 34.Qg2 Kh7 35.Qf3 Rg8 36.Kf2+-) 33.hg5 Qc4 34.gf6 Kf7 35.Re2 cb5= (35...Qc5 36.Qa2 Kg6 37.Rg2 Kh6 38.Rf5 Qc1 39.Kh2+-; 35...Qa4? 36.e5 Rg8 37.Kf2+-)) 31.Kh2+= gf4 32.gf4 (better 32.b6 f3 33.Nd6+/-) 32...Rfe8? (better 32...cb5!? 33.ab5 a4=) 33.Qd4 (33.b6+-) 33...Rad8? (better 33...cb5!? 34.ab5 Re7+-) 34.Nd6+- White prepares the advance e5 34...Re6 35.b6 Rg8? (35...Re7 36.Nf5 Bf5 37.Qd8 Re4 38.Qc7 Kg6 39.Qb7 Rf4 40.Qc6+-) 36.e5 (better 36.Nb7 Rge8 37.Nd6 Rb8+-) 36...f5?? (36...fe5 37.fe5 Rb8+-) 37.Nb7 Rge8 (37...Rg6 38.Qd7 Kh8 39.Nd6+- (39.Na5 Bf3 40.Kh3 Rg3 41.Kh2 Rg2 42.Kh3 R8g3)) 38.Nd6 (better 38.Nd8 R6e7 39.Qd6 Bf3+-) 38...R8e7 (38...Rb8+-) 39.b7 Re8 (39...Rb7 40.Nb7 Re7 41.Na5 Kh7+-) 40.Ne8 Re8 (40...Kf7 41.Qd7 Re7 42.Nd6 Kf8 43.b8Q Kg7 44.Qe7 Kh6 45.Qe6 Kg7 46.Qbg8) 41.Qd7 Kf8 (41...Kh6 42.Qe8 Bf3 43.Qe6 Kg7 44.b8Q Bd5 45.Qbg8) 42.Qe8! Ke8 43.b8Q Ke7 (43...Kf7 44.Qb7 Ke6 45.Qc6 Kf7 46.e6 Kg7 47.Qd7 Kh6 48.e7 Bf3 49.e8N Kg6 50.Qg7) 44.Qd6 (44.Qg8 Kd7 45.e6 Kc7 46.Qf7 Kb8 47.e7 Kb7 48.e8Q Ka6 49.Qc6) 44...Ke8 (44...Kf7 45.Qf6 Kg8 46.Qg6 Kh8 47.e6 Bf3 48.e7 Bd5 49.e8Q Bg8 50.Qgg8) 45.e6 Bf3 46.Qd7 Kf8 47.Qf7 1-0. geochess (2110) - darhaa (2050), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.d3 c6 8.a4 Nbd7 9.0-0 cb5 10.ab5 Nc5 11.Nc3 a4 12.e3 Bg4 13.Ra2 Be6 (13...e6!?=) 14.Ng5 Bd7 15.d4 (15.Bd5 Nd5 16.Nd5 Bb2 17.Rb2 e6-/+) 15...Ne6 16.Ne6 Be6 17.Qa1 Qd7 18.Ra4 Ra4 19.Qa4 (worse 19.Na4 Ra8=+) 19...Bh3 20.Ra1 Bg2 21.Kg2 Rc8 22.Qb3 h5 23.h3 Qf5 24.f3 Bh6 25.Re1 h4 26.g4 Qd7 27.Ba3 e6 28.Ne2 Ra8 29.Rb1 Ne8 30.Qd3 Nd6 31.Bd6 Qd6 32.f4 Bf8 33.c4 Qa3 34.Qa3 Ra3 35.c5 Re3 36.Rb2 Be7 37.b6 g5 (37...Kg7 38.g5+/-) 38.c6 bc6 39.b7 Bd6 40.b8Q Bb8 41.Rb8 Kg7 42.Rb2 Kf6 (42...gf4 43.Nf4 Re4 44.Ne2+-) 43.fg5 Kg5 44.Ng1 ½-½. endre969 (2435) - marekt (2405), ChessWorld.net, 2012. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.0-0 a4 8.c4 e5 9.d3 Bg4 10.Nc3 Nbd7 (10...a3!? 11.Bc1 e4=) 11.Na4+/- c6 12.bc6 bc6 13.Nc3 Nc5 14.Qc2 Qa5 15.Ne4 (better 15.h3!? Be6 16.d4+/-) 15...Nfe4= 16.de4 Rfb8 17.Bc3 (17.h3!? Qa4 18.Rfc1=) 17...Qa4=+ 18.Qa4 Na4 (18...Ra4 19.Rfb1 Rb1 20.Rb1 Rc4 21.Rb8 Bf8 22.Bd2-/+) 19.Bd2= Bf3 (19...Nc5!? 20.Be3 Ne4=+) 20.ef3+= Rb2 21.Be3 (21.Rfd1 Rc2+=) 21...Rc2 (better 21...Nc3!?=) 22.Rfc1+/- Rc1 23.Rc1 Rb8 24.Bf1 (24.Bh3 Nc5+/-) 24...Rb2 (24...Kf8 25.Kg2+/-) 25.Rd1 Bf8 26.Rd2 Rb1 27.Kg2 c5 28.Bd3 Ra1 29.f4 (29.Rc2 Bg7+/-) 29...Nc3 30.fe5 de5 31.Rb2 (31.g4 f6+=) 31...Nd1 32.Rb1 (better 32.Rc2 Ne3 33.fe3+=) 32...Ne3-/+ 33.fe3 Ra2 34.Kf3 (34.Kh3 Bh6-/+) 34...h5 (34...Rh2!? 35.Bf1 h5-/+) 35.h4 Kg7 36.Rb8 Rd2 37.Be2 Be7 38.Re8 Kf6 39.Rc8 Ke6 40.Rc6 Kd7 41.Ra6 g5 (41...Kc8 42.Ra8 Kb7 43.Rh8=+) 42.hg5= Bg5 43.Ra3 Rb2 (43...h4 44.Ra7 Ke6 45.gh4 Bh4 46.Ra6 Rd6 47.Ra5=+) 44.Rd3 (44.Ra7 Ke6=) 44...Ke6 45.Rd5 Rb3 The isolani on e3 becomes a target 46.Rd3 Rb6 (46...Rd3 47.Bd3 Bd8 48.Bc2=+) 47.Kf2 h4 48.Bg4 Kf6 49.gh4 Bh4 50.Kf3?? (50.Kg2=+) 50...Kg5 (50...Rb2 51.Rd6 Kg5 52.Rd2 Rd2 53.Bf5 Rf2) 51.Rd5= f6 52.Rd8 (52.Rc5?? Rb2 53.Re5 fe5 54.c5 Rf2) 52...Rb2?? (better 52...Be1=) 53.Rg8+- Kh6 54.Bf5 (better 54.Rh8 Kg7 55.Rh4+-) 54...Rf2-+ 55.Kg4 Bg5?? (better 55...Rg2 56.Kh4 Rg8-+) 56.Rh8 (better 56.Rg6 Kh7 57.Rg5 Kh8 58.Rh5 Kg8 59.Rh6 Rg2 60.Kf3+-) 56...Kg7= 57.Rh7 Kf8 58.Kh5 Rh2 59.Kg6 Rh7 60.Kh7 Be3 61.Kg6 Ke7 62.Kg7 Bf4 63.Kg6 Bg5 64.Kg7 Kd6 65.Kf7 Kc6 66.Ke6 Kb6 67.Kd5 Be3 68.Ke6 Bg5 69.Kd5 Bh4 70.Ke6 Ka5 71.Kd5 Kb4 72.Be6 Bg5 73.Kc6 (73.Kd6 Bf4=) 73...Be3 (73...f5!? 74.Kd5 fe4 75.Ke4 Bf4=+) 74.Bd5 Kc3 75.Kd6 Kd4 76.Ke6 Bg5 77.Kf5 Bd2 78.Kf6 Bf4 79.Kf5 Kc3 80.Ke6 Kb4 81.Kd6 Bg3 82.Be6 Bh2 83.Bf7 Bg3 84.Bg8 Bh2 85.Bd5 Bf4 86.Bg8 Bh2 87.Bd5 Bf4 88.Bg8 Bh2 89.Bd5 ½-½. homoeporediensis (1925) - coolmcs (1840), Rated Blitz game, lichess.org, 2014. (=1.g3 (A05: Reti Opening: 1 Nf3 Nf6) 1...Nf6 2.Bg2 g6 3.b4 Bg7 4.Bb2 0-0 5.Nf3 a5 6.b5)

7.0-0 Nbd7 8.c4 e5 9.Nc3 Re8 10.Qc2 Nc5 11.d3 Qe7 (11...e4 12.Ne1=) 12.Nd2 Bf5 (12...Ne6 13.Nde4+=) 13.Nb3 (13.Ba3 Reb8+=) 13...e4 14.Nc5 dc5 15.de4 Be4 16.Be4 Ne4 17.Nd5 Qd6 (17...Qd8 18.f3 Nd6 19.Bg7 Kg7 20.Qb2 f6 21.Rad1+=) 18.Bg7 Kg7 19.Qb2 Qe5 20.Qe5 Re5 21.f4 Rd5 22.cd5 Nc3 23.Rfe1 ½–½. Reis,Thomas (2165) – Klundt,Klaus (2335), Augsburg Afro Seniors op 9th, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6)

7.0-0 Nbd7 8.c4 e5 9.d3 Re8 10.Nc3 Nc5 11.Nd2 Bd7 12.a4 c6 13.Nb3 Nb3 14.Qb3 Qc7 15.Rfc1 c5 (15...Rad8 16.Rab1=) 16.b6 (16.Rab1 Qb6+=) 16...Qc8 (16...Qd8 17.Rcb1=) 17.Nd5 (17.Nb5!? Bb5 18.Qb5+= (worse 18.cb5 Re7=+)) 17...Nd5= 18.Bd5 Bc6 19.e3 (19.e4 Bd5 20.cd5 Qg4=) 19...Bd5 20.cd5 Qd7 21.d4 (better 21.Rab1!?=) 21...ed4-/+ (21...cd4?! 22.Rc7 Qf5 23.Rb7+=) 22.ed4 Re2 23.Rab1 (23.Rc2 Rae8-/+) 23...Qf5 (worse 23...Bd4 24.Bd4 cd4 25.Qf3+=; 23...cd4?! 24.Qf3 Qe8 25.Rc7=) 24.Rf1 Rf2! 25.dc5? (25.Rf2 Qb1 Deflection (25...Qb1 Overloading)) 25...Bb2-+ 26.Rf2 Qb1 27.Kg2 Qe4 28.Qf3 Qf3 29.Kf3 Bd4 30.Re2 (30.c6 Rb8 31.c7 Rc8-+) 30...Bc5 (worse 30...dc5 31.Re7 Rb8 32.Rc7-+) 31.Re7 Bb6 (31...Rb8!? 32.Rd7-+) 32.Rb7 Bc5 33.Rb5 Bb4 34.Rb6 Re8 35.Kg2 (35.Rb7 Re1-+) 35...Re5 36.Rb7 (36.Rb5 Re2 37.Kh3 Ra2-+) 36...Rd5 37.Rd7 (37.g4 Rd2 38.Kg3 Ra2-+) 37...Rd2 38.Kf3 (38.Kh1 Ra2-+) 38...Kg7 (38...Rh2 39.g4-+) 39.h4 h5 40.g4 Rd3 41.Ke4 Rh3 42.gh5 Rh4 43.Kd5 Rh5 44.Kc6 Rc5 45.Kb7 Rc3 46.Kb6 Ra3 47.Kb5 Kf6 48.Rd8 Ke6 49.Rd7 (49.Re8 Kd5-+) 49...Kd5 (49...Kd7 50.Ka6 Kc6 51.Ka7 Bc5 52.Ka6 g5 53.Ka5 f5 54.Ka6 Ra4) 50.Rd8 (50.Rf7 Bd2-+) 50...f5 51.Re8 (51.Rf8 Ke4 52.Rg8 Rg3-+) 51...f4 52.Rg8 Ke4 53.Rg6 Kf3 (53...f3!? 54.Rf6-+) 54.Re6 Kf2 55.Re4 f3 56.Rb4 (56.Re8-+) 56...ab4 57.Kb4 Ra1 58.a5 Ra5! 59.Ka5 d5 60.Kb4 d4 61.Kc4 d3! 62.Kd3 Ke1 63.Ke3 f2 64.Ke4 f1Q 65.Ke5 Qe2 66.Kd5 Kd2 67.Kd4 Qe3 68.Kc4 Qd3 69.Kb4 (69.Kc5 Ke3 70.Kb4 Kd4 71.Ka5 Kc5 72.Ka4 Qb1 73.Ka3 Kc4 74.Ka4 Qb4) 69...Qc3 (69...Qd5 70.Ka3 Qb5 71.Ka2 Kc3 72.Ka3 Qb3) 70.Kb5 Kd3 (70...Qc7 71.Kb4 Kd3 72.Kb3 Qb7 73.Ka4 Kc4 74.Ka5 Qb5) 71.Kb6 Kd4 72.Kb5 Qc5 73.Ka4 (73.Ka6 Qc7 74.Kb5 Qb7 75.Ka4 Kc4 76.Ka5 Qb5) 73…Kc3 (73...Qb6 74.Ka3 Kc3 75.Ka4 Qb4) ½-½. BabaRamdev (2865) - chessasuke (2605), Rated Bullet game, lichess.org, 2020.

7.d3 a4 8.0-0 Nbd7 9.c4 Nc5 10.Nbd2 a3 (10...e5 11.Ng5=) 11.Bc3 Bg4 12.h3 Bf5 (12...Bf3 13.Nf3 e5 14.Rb1=) 13.Nd4 (13.g4 Bd7+=) 13...Bd7= 14.N4b3 Na4 15.Bb4 Qc8 16.Kh2 (worse 16.Ba3 Nc3 (16...Bh3?! 17.Qc2=+) 17.Qc2 Ne2 (17...Ra3?! 18.Qc3 Bh3 19.Qb2=+) 18.Kh1 Bh3-+) 16...c5 17.bc6 Bc6 18.Nf3 (worse 18.Ba3 Nc3 19.Qc1 Ne2-/+) 18...Nc5 19.Nc5 dc5 20.Bc3 (20.Bd2 Qe6=) 20...Rd8 (better 20...Ng4!? 21.hg4 Bc3-/+) 21.Qc1 h6 22.Ne5 Bg2 23.Kg2 Qe6 24.Rb1 Nh7 (24...Nd7 25.Nd7 Rd7 26.Bg7 Kg7 27.Qc3 f6 28.Rfe1=) 25.f4 Be5 26.fe5 (26.Be5 f6 27.Qe3 fe5 28.Rb7 Qc6 29.Qf3 e4 30.Qe4 Qe4 31.de4 Rd2-+) 26...Ng5 27.g4 Kh7 (27...Ra7 28.Rb3+=) 28.Qf4 Rf8 29.h4 Qc6 30.Kg3 Ne6 31.Qf3 Qf3 32.Rf3 Rab8 (32...Ra7 33.Rf2+=) 33.Rb3 Rfc8?? (better 33...Kg7+/-) 34.Rf7+- Kg8 35.Re7 Rc6 36.Rbb7 Rb7 37.Rb7 g5 38.hg5 hg5 39.e3 Rc8 (39...Ra6 40.Bd2+-) 40.Rd7 (40.Kf3 Rc7 41.Rb8 Kf7+-) 40...Rb8 (40...Ra8 41.Kf3+-) 41.Rd6 Kf7 42.Ra6 (42.d4 Rd8+-) 42...Rb1 (42...Rd8 43.d4 cd4 44.Ra7 Kg6 45.ed4 Nd4 46.Ra3+-) 43.Ra3 Rd1 44.Ba5 Rg1 (44...Rb1 45.Kf3+-) 45.Kf3 Nf8 46.Bb6 Ng6 47.d4 cd4 48.Bd4 (48.ed4!? Nh4 49.Ke4 Rg4 50.Kd5 Nf5+-) 48...Nh4 49.Ke4 Rg4 50.Kd5 Rg1 51.Ra7 (51.e6 Kg6 52.e7 Kf7 53.e8Q Ke8 54.Ke6 Kd8 55.Be5 Kc8 56.Rb3 Rb1 57.Rb1 g4 58.Rb8) 51...Kg6 52.e6 Nf5 53.Ke5 (53.Rf7 Nd4 54.ed4 Re1+-) 53...Rh1 (53...Rb1 54.Rf7 Nd4 55.ed4 Re1 56.Kd6+-) 54.e7 Rh8 (54...Ng7 55.Kd6 Nf5 56.Ke6 Ne7 57.Re7+-) 55.Ke6 (better 55.Ra6 Kf7 56.Kf5 Rc8+-) 55...Rg8 (55...Re8 56.Bf6 Rb8 57.c5+-) 56.Kd7 (better 56.Ra6 Ne7 57.Ke7 Kf5+-) 56...g4 (56...Kf7 57.Ra5 Ne7 58.Re5+-) 57.e8Q Re8 58.Ke8 g3 59.Bc5 g2 60.e4 Ng3 61.e5 Kf5 62.Rg7 Kf4 (62...Ne4 63.Be7 Ke5+-) 63.Rg3! Kg3 64.e6 1-0. Fourie,Brandon - Bhawoodien,S (2020), SWVG Arnold Classic, 2019. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 0-0 5.Bg2 a5 6.b5)

7.d3 e5 8.0-0 Nbd7 9.a4 Nc5 10.Nbd2 Bd7 (10...Re8 11.c4=) 11.Nb3 (11.c3 Bf5=) 11...Nb3 12.cb3 c6 13.Nd2 (13.bc6 bc6 14.Nd2 Qc7=) 13...cb5 14.ab5 (worse is 14.Bb7 Rb8 15.Bg2 ba4+=) 14...Ra7 15.b6 Qb6 16.Nc4 Qc7 17.Qd2 Rfa8 18.d4 (18.f4 Ng4 19.Rac1 Qc5 20.d4 ed4–/+) 18...e4 19.Rfe1 (19.Qf4 Be6 20.Qd6 Qd6 21.Nd6 b6=) 19...Bc6 (better is 19...b5!? 20.Na3 d5–/+) 20.d5+= Nd5 (20...b5!? 21.Nb6 Qb6=) 21.Bg7= Kg7 22.Qd4 (22.Be4 Nf6 23.Bc6 bc6 24.Nd6 Nd5+=) 22...Nf6 23.Nb6 Qe7 (23...Rd8 24.Nd5 Bd5 25.Qa7=) 24.Nc8 Rc8 (24...Qe5 25.Qe5 de5 26.Na7 Ra7 27.Rec1+=) 25.Qa7= Qe6 26.Qb6 Ra8 27.Ra5 Ra5 28.Qa5 Qb3 29.Qd2 Qe6 (29...Qd5 30.Qb4=) 30.Qc3 (30.Rd1 e3 31.fe3 h6=) 30...h5 (30...Qe5 31.Qc2+=) 31.Ra1 (31.Rd1 Bd5=) 31...h4 (31...Qe5 32.Qe1+=) 32.gh4 (32.Rd1 Qe5 33.Qe3 Ng4=) 32...Qg4 (32...Qe5 33.Qe5 de5 34.Rc1+=) 33.e3 Qh4 34.Qd4 d5 35.Ra8 Qg4 36.h3 Qe6 37.Kh1 Qe7 38.Kg1 Kh7 39.Bf1 (39.f3 Ne8=) 39...Ne8+= 40.Qa7 Qe5 41.Be2 (41.Qb6 Qf6+=) 41...Nc7 42.Rf8 Qg7 (42...Ne6 43.Rf7 Kg8 44.Rb7 Bb7 45.Qb7+=) 43.Rb8 (43.Qa3 Qf6=) 43...Ne6 (43...Qb2 44.Bf1+=) 44.Rb7= Bb7 45.Qb7 ½–½. Forintos (2485) – Honfi (2435), Budapest, 1971. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6)

7.d3 e5 8.Nbd2 Nbd7 9.c4 Rb8 (9...Nc5 10.0-0=) 10.0-0= b6 11.e4 Nc5 12.Qe2 Nh5 (12...Bb7 13.Nb3 Ne6 14.a4=) 13.Nb3 Nb3 14.ab3 Bg4 15.h3 Bf3 16.Bf3 Nf6 17.h4 Nd7 18.h5 Nc5 19.Qd1 Ne6 20.Kg2 Ng5 21.Be2 f5 22.hg6 hg6 23.ef5 gf5 24.Rh1 f4 25.Bg4 f3 (25...fg3!? 26.fg3 e4 27.Bg7 Kg7=) 26.Kg1+= Qf6 27.Rh5 (27.Ra2 Rbe8+/–) 27...Qg6+= 28.Qf1 (28.Rh4 Bf6 29.Bd7 Kg7+=) 28...Bf6 29.Bc1 Kg7 30.Bg5 Bg5 31.Qh3 Rh8 32.Bf3+/– Rh5 33.Bh5 Qf6 34.Re1 Rf8 35.Re2 Qf5+= 36.Qf5 Rf5 37.Re4 Bd2 38.Bg4 Rg5 39.d4 Kf6 40.Kf1 Rg7 41.Bf3 Bc3 42.de5 de5 43.Rh4 Bd4 44.Bd5 Bc5 45.Ke2 Rg5 46.g4 Rg6 47.f3 Kg7+= 48.Rh5 Bd6 49.Be4 Rh6 50.Rg5 Kf7 51.Bd5 Ke7 52.Ke3 Rf6 53.Rg7+/– Ke8?? 54.g5+– Rf5 55.Ke4 Rf4 56.Ke3 Rf5 57.Be6 Rf4? 58.g6+– Bc5 59.Ke2 e4 60.Rg8 Rf8= 61.f4 Rg8 62.Bg8 Kf8 63.Bd5 Kg7 64.Be4+= Kf6 65.Kf3 Bf8 66.Bd3 Bc5 67.f5 Bg1 68.Ke4 Bh2 69.Kd5 Bd6 70.Kc6 Kg7 71.Bc2 Kf6 72.Kd7 Be5 73.c5 Bd4 74.c6 Be5 75.Kd8 Kg7 ½–½. Poley,Vladimir (2375) – Andersen,Jimmy, get2net Cup IM, Aars DEN, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6)

7.d4 c6 8.a4 cb5 9.ab5 d5 10.Na3 Bf5 11.c4 dc4 (11...Qc8 12.cd5 Be4 13.Rc1=) 12.Nc4+= Be4 13.Ncd2 Bd5 14.0-0 Nbd7 (14...Qd7 15.Qa4=) 15.Qb1+= b6 16.e4 Bb7 17.d5 (17.Rc1 Rc8+=) 17...Nc5 18.Nd4 Qd7 (better 18...e6!? 19.Nc6 Bc6 20.bc6 ed5=) 19.Nc4 Qc7 20.Nc6 Bc6 (20...Ne8 21.Bg7 Kg7 22.Qc2+/-) 21.bc6 (21.Be5 Qa7 22.bc6 a4 23.Nb6 Rab8 24.Bb8 Rb8+-) 21...Ra6 (21...a4 22.Bd4 Ra6 23.e5+-) 22.Be5 Qa7 23.Bd4 Ne8 24.Bg7 (24.e5 a4 25.Qb4 Nd6+-) 24...Kg7 25.e5 a4 26.d6 ed6 (26...f6!? 27.Qd1 ed6 28.ed6+-) 27.ed6+- Nf6 28.c7 (28.Qb4 Re8+-) 28...a3 (28...Nb3 29.Ra4! Ra4 30.Qb3 Ra6+-) 29.Ra2 Nfd7 (29...Ne6 30.Qb4 Nc7 31.dc7 Qc7 32.Na3+-) 30.Qa1 Kg8 (30...Nf6 31.Ra3 Ra3 32.Qa3 (worse 32.Na3 Qa4+-) 32...Qa3 33.Na3+-) 31.Re1 (better 31.Ne3 b5 32.Nd5 h6 33.Ne7 Kh7+-) 31...b5 32.Ne5 (better 32.Bd5 Nb3 33.Bf7 Rf7 34.c8Q Rf8 35.Qa6 Qa6 36.Ra3+-) 32...Rd6+/- 33.Ng4 (better 33.Nc6 Rc6 34.Bc6+-) 33...h5?? (better 33...f6=) 34.Nh6+- Kh7 35.Nf7! Qc7 (35...Rf7 36.c8Q Combination) 36.Re7 Nb3 (36...Rf6 37.Ng5 Kh6+-) 37.Nd6 Kh6 (37...Rf7 38.Rf7 Kh6 39.Qg7 Kg5 40.f4 Kg4 41.Qg6) 38.Qg7 Kg5 39.h4 Kg4 40.Qg6 1-0. Grigoryan,K2 (2605) - Moussard,J (2605), chess24.com INT blitz, 2019.

7.d4 c6 8.c4 d5 9.Na3 cb5 10.Nb5 dc4 11.Ne5 Nc6 12.Nc4 Be6 13.Ne3 Rc8 14.0-0 Nd5 15.a4 Ncb4 (15...f5 16.Qd3=) 16.Nd5 (16.Rc1 Ne3 17.fe3 Bh6 18.Rc8 Be3 19.Kh1 Qc8+=) 16...Bd5 17.Bc3 Bg2 18.Kg2 Qd5 (18...Nd5 19.Bd2=) 19.f3= Rc4 20.e4 Qd7 21.Qd2 Rfc8 22.Rad1 (22.Rac1!?=) 22...Na6 (22...Bd4 23.f4 Qc6 24.Nd4 Qe4 25.Kg1 Rc3 26.Rfe1–+) 23.Rb1 b6 24.Rfc1 Ra4 25.d5 Bc3 26.Rc3 Rac4 27.Rc4 Rc4 28.Rb3 (28.Na3 Rb4–/+) 28...Nb4 29.Na3 Rc6! 30.Qf4 Rc8 31.Qd2 Qc7 32.h3 h5 33.f4 Qc1 34.Qc1 Rc1 35.Nb5 Rc5 36.Nc3 b5 37.g4 f5! 38.Kg3 hg4 39.hg4 fe4 40.d6 ed6 41.Ne4 Rc6 42.Nc3 Rb6 43.Kf3 Kf7 44.Ke4 Rb8 45.Rb1 d5! 46.Ke5 g5! 47.f5 Rd8 48.Kd4 Nc2 49.Kd3 Na3 50.Rh1 b4 51.Na4 Kf6 52.Rh6 Ke5 53.Nc5 Rc8 54.Re6 Kf4 55.f6 Rf8 56.Nd7–/+ Rf7 57.Re7 b3 58.Kc3 Nb5 59.Kb3 Nd6 60.Nb6 Kg4 61.Nd5 Kf5 62.Ka4 Re7 63.fe7 Ke6 ½–½. Nolan,Tom (1710) – Lyew,Merrill (1610), IECC, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 0-0 6.Bg2 d6)

7.d4 d5 8.0-0 =.

7.d4 Nbd7 8.c4 e5 9.0-0 ed4 10.Nd4 Re8 11.Qc2 Nc5 12.Nc3 Ne6 (12...a4 13.Rad1=) 13.Ne6+= fe6 14.c5 d5 15.Rad1 c6 (15...Qe7 16.Na4+=) 16.bc6 (16.e4 Qe7 17.Na4 cb5+=) 16...bc6= 17.Na4 Nd7 (17...e5 18.e4 Ba6 19.Rfe1+=) 18.Bg7+= Kg7 19.Rb1 (19.e4 Qf6+=) 19...Qf6 (19...e5 20.Nb6 Ra7 21.Qc3=) 20.Nb6+= Nb6 (20...Ra7 21.e4+=) 21.Rb6 Bd7 22.Rfb1 Rf8 23.e3 Rf7 24.Qb2 (24.f4 g5+=) 24...Qb2= 25.R1b2 a4 26.Bf1 (26.f4 Ra5 27.Rc2 h6=) 26...a3 (26...Ra5!?=) 27.R2b3+= Ra5 28.Rc3 Be8 (28...e5 29.f4 d4 30.ed4 ed4 31.Rc4=) 29.f4 Re7 (29...Kf6 30.Bg2+=) 30.Kf2 (30.Bd3 h6+/–) 30...h6 (30...Kf6 31.Rbb3+=) 31.Bd3 g5 32.Rb4 (32.e4 d4 33.Rc4 e5+=) 32...Kf6 (32...Bg6 33.Be2=) 33.e4 gf4 34.gf4 e5 (34...Bg6!?=) 35.ed5+/– cd5 36.Rb6 Kg7 37.fe5 d4 38.Rc4 Re5 (38...Bf7 39.Rd4 Rc5 40.Rg4 Kf8 41.Rh6 Ba2 42.Rh8 Kf7 43.Rf4 Ke6 44.Rh6 Kd7 45.Rd4 Kc7 46.Ra4 Rf7 47.Rf6 Re5 48.Rf7 Bf7 49.Ra3+/–) 39.Rb7 Kf6 40.Rd4 Rac5 41.Rf4+– Kg5 42.h4 Kh5 43.Rg7 Rc3 44.Be4 Re4 45.Re4 Bc6 46.Rc7 Rc2 47.Re2 Rc4 48.Re3 Kh4 49.Re6 Rf4 50.Ke3 Rf3 51.Ke2 Bd5 52.Rh6 Kg5 53.Ra6 Rf5 54.Ra3 Kf4 55.Re7 Rh5 56.Ra4 Kf5 57.Kd3 Rh3 58.Re3 (58.Re3 Rh1 59.a3+–) 1–0. Barcza – Hecht, Hamburg, 1965. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6)

8.c4 Nbd7 9.Nc3 Nc5 10.d3 Re8 11.Nd2 h5 12.Nd5 Nd5 13.cd5 a4 14.Nc4 b6 15.Rb1 Bd7 16.Ba3 Nb7 17.Rb4 Rf8 18.Qc2 Qe8 19.Rfb1 Nc5 20.Bc1 f5 21.Be3 Rb8 22.R4b2 (22.Na3 Ra8+/–) 22...Qe7 23.Rb4 f4 24.Bc5 bc5 25.Ra4 fg3 26.hg3 h4 27.gh4 Qh4 28.Rf1 Bb5 29.Ra7 e4! 30.Rc7 (30.de4 Bc4 Combination; 30.Be4 Bc4 Combination) 30...Bc4 31.Rg7 Kg7 32.dc4 Rbe8 33.e3 Re5 34.Rb1 Rg5 35.Rb7 Kh6 36.Qb2 Rf6! 37.Rb8 Qg4 (37...Qg4 38.Rh8 Kg7 39.f4 ef3 40.Rh7 Kh7 41.Qb7 Kh6 42.Qb2 Qg2 43.Qg2 fg2 44.e4 Rf1 45.Kh2 Rh1) 0–1. Fuller,Maxwell L (2355) – Plachetka,Jan (2480), Politiken Cup, 1980. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6 7.0-0 e5)

8.c4 Nbd7 9.Nc3 Re8 10.d3 e4 (10...Nc5 11.Rb1=) 11.Ne4+= Ne4 12.Bg7 Kg7 13.de4 Re4 14.Nd2 Re8 15.Ne4 Qe7 16.Nc3 Nc5 (16...Nb6 17.e3=) 17.Rc1 (17.Nd5 Qd8+=) 17...Rb8 (17...Be6 18.Na4 Na4 19.Qa4+=) 18.e3 (18.Nd5 Qd8+= (worse is 18...Qe2 19.Nc7 Re7 20.Qd6+–)) 18...Be6 (18...Qe5 19.Nd5 c6 20.Nf4+=) 19.Nd5 (19.Qd4 Kg8+=) 19...Bd5= 20.cd5 ½–½. Soppe,Guillermo (2430) – Llanos,Guillermo (2365), Buenos Aires PRENAJ, 1994. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6 7.0-0 e5)

8.c4 Nbd7 9.d3 Nc5 10.Nfd2 Be6 11.Nc3 Qd7 12.Re1 Bh3 13.Bh1 Ng4 14.Nde4 Ne4 15.Be4 Rab8 16.Qa4 f5 17.Bd5 Kh8 18.f3 (18.Qa5!? c6 19.Bh1+=) 18...Nf6 19.Nd1 (19.Qa5? Ra8 (19...Nd5 20.Nd5 c6 21.Qc7+=) 20.Qb4 c6–+ (worse is 20...Nd5 21.Nd5 Rae8 22.f4+=)) 19...f4 20.Nf2 (worse is 20.Qa5 c6 (20...Nd5?! 21.cd5 Ra8 22.Qb4=) 21.Be4 A) 21...Ne4?! 22.de4 (22.fe4 fg3 23.Qb6 Qg4–+) 22...Be6 23.Qb4+=; B) 21...d5 22.bc6 bc6 23.Bg6 Ra8–/+) 20...fg3 21.hg3 c6 22.bc6 bc6 23.Bc6 Qa7 24.Bc3 (24.Ba3 Ng4 25.c5 Nf2 26.Kf2 dc5=) 24...Qe3 25.Bd2 Qd2 26.Nh3 Rb2 27.Nf2 Qe3 28.Kg2 (28.Qa5? Ng4 29.Rf1 Re2–+) 28...Re2 29.Re2 Qe2 30.Qd1 (30.Qa5 e4 31.Rf1 Qf3 32.Kh2 Nh5–+) 30...Qb2 31.Qc1 Qe2 32.Qe1 Qb2 33.a4 e4 34.de4 Ng4 35.Rb1 Ne3 36.Kh3 Qd4 37.Qe2 Nc4 38.Bb5 Ne5 39.f4= Nf7 40.Rc1 Ng5 41.Kg2 Ne6 42.Qc4 Qe3 43.Rd1 Nf4 44.gf4 Qf4 45.Qe2 Be5 46.Rg1?? Qh2–+ 47.Kf1 Bd4 48.Rg2 Qh1 49.Rg1 Qh3 50.Rg2 Bf2 51.Qf2 Rf2 52.Kf2 Qe6 53.Ke3 Kg7 54.Rf2 d5 55.Bd3 de4 56.Be4 Qb3 57.Kf4 Qa4 58.Rc2 Qd7 59.Ke5 a4 60.Rc6 a3 61.Rc2 h5 0–1. Hepting,Heinrich (2240) – Liepold,Stefan (2260), GER Cup region, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6)

8.c4 Re8 9.d3 Nbd7 10.e3 Nb6 11.Ng5 h6 12.Ne4 Nfd7 13.Nbc3 f5 14.Nd2 Nc5 15.Qc2 Bd7 16.Nd5 c6 17.bc6 Bc6 18.Nb6 Qb6 19.Rab1 Bg2 20.Kg2 Qc6 21.Kg1 Ne6 22.Qd1 d5 23.cd5 (23.f4 d4 24.fe5 de3=) 23...Qd5=+ 24.Qb3 Rad8 25.Qd5 Rd5 26.Nc4 Nc5 (26...b5 27.Na5 Rd3 28.Nc6=+) 27.Na5 (better 27.Be5!? Be5 28.Ne5 Ree5 29.d4+=) 27...Ra8=+ 28.Nc4 Ra2 29.Be5 Rd3 (worse 29...Be5 30.Ne5 Re5 31.d4+/-; 29...Re5? 30.Ne5 Be5 31.d4 Bd4 32.ed4+-) 30.Bg7 Kg7 31.Rb5 Rc3 (31...Rd5!?+=) 32.Rc5+/- Rac2 33.Rb1 Rc4 34.Rb7 Kf6 35.Rb6 Kg5 36.Ra5 Rc6 37.Rc6 Rc6 38.e4 Re6 39.ef5 gf5 40.Kg2 Kg6 41.Kf3 Rb6 42.Ra3 Kg5 43.h4 Kg6 44.Ra4 Rc6 45.Kf4 Rb6 46.Rd4 Kf6 47.Kf3 Rb3 48.Kg2 Rb6 49.Kh3 Ra6 50.Rb4 Rc6 51.Rb8 Ra6 52.Rf8 Kg6 53.h5! Kh5 54.Rf5 Kg6 55.Rb5 Rc6 56.Kg4 Rc4 57.f4 Rc6 58.Kh4 Rc1 59.Rb6 Kf5 60.Kh3 (60.g4 Kf4 61.Rf6 Ke5 62.Rh6 Rg1+-) 60...Ra1 61.Rb5 Kg6 62.Kg4 Ra6 63.Re5 Rb6 64.Kf3 Rb3 65.Kg4 Rb6 66.Re3 Ra6 67.Kf3 Rb6 68.g4 Ra6 69.Kg3 Kf6 70.Rb3 Rc6 71.Kh4 Rc1 72.Rh3 Rc4 73.Rf3 Ra4 74.Kh5 Ra1 75.Rh3 Kg7 76.Kh4 Kg6 77.f5 Kf6 78.Kh5 Kg7 79.Rh2 Rb1 80.Kh4 Kf6 81.Rc2 Rh1 82.Kg3 Rg1 83.Kf3 Rf1 84.Kg2 Ra1 85.Rc6 Kg7 86.Kg3 Ra3 87.Kf4 Ra4 88.Ke5 Rg4 89.Rc7 (89.f6 Kg6 90.Rc7+-) 89...Kg8+/- 90.Ke6 Re4 91.Kf6 h5 (91...Rg4 92.Rc8 Kh7 93.Kf7+/-) 92.Rg7 Kh8 93.Rg5 Ra4 (better 93...Rh4+/-) 94.Kg6?? (94.Rh5 Kg8+-) 94...Kg8?? (better 94...Rg4=) 95.Rh5+- Ra1 96.Rh2 Rg1 97.Kf6 Rg7 98.Rb2 Rf7 99.Ke6 Kg7 100.Rg2 Kf8 101.f6 Ra7 102.Rb2 Ra6 103.Kf5 Ra1 104.Rg2 Rf1 105.Kg6 Ra1 106.Rg3 Rb1 107.Rf3?? (better 107.Re3+-) 107...Rg1= 108.Kf5 Kf7 109.Rf2 Rg6 110.Ke5 Rg5 111.Ke4 Ra5 112.Rf1 Ra6 ½-½. Mwale,Joseph (2230) - Issa,R (2385), 43rd Olympiad, 2018. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2)

8.d3 c5 9.bc6 (9.c4 Nbd7=) 9...bc6 10.Nbd2 Ne8 (10...Na6 11.c4=) 11.Rb1 f5 12.c4 Nd7 13.Qc2 Nc7 14.Ne1 (14.Bc1 Qf6=) 14...Ra6 15.e3 Ne6 16.f4 g5 17.Kh1 (17.fe5 de5 18.a4 Qe7=) 17...Nf6 (17...gf4 18.gf4 ef4 19.ef4=) 18.Qc1 (18.Qa4 ef4 19.ef4 gf4 20.gf4 Qc7=) 18...gf4= 19.ef4 ef4 20.gf4 Nh5 21.Bg7 Kg7 22.Qc3 Qf6 23.Qa3 Qh4 (23...Nef4 24.Bf3 c5 25.Nc2+=) 24.Rf3 (24.Ndf3 Qe7+=) 24...Qe7 25.Nc2 Nhf4 26.Ne3 (26.Rg1 Kf7+=) 26...Ng2 (26...Nd4 27.Rg3 Kh8 28.Nc2 Nc2 29.Qc3 Qe5 30.Qc2–/+) 27.Qc3+= Qf6 (better is 27...Kg8!? 28.Rg1 Ng7 29.Ng2 c5+=) 28.Nf5+= Kh8 (28...Kg6 29.Qf6 Kf6 30.Nd6 Ngf4 31.Rb8+=) 29.Qf6+/– Rf6 30.Rb8 Nf8? (better is 30...Rf8 31.Nd6 Ngf4+/–) 31.Rc8+– Ne1 (31...Rb6 32.Nd6!! Nf4+–) 32.Ne4 Rf7 33.Ned6 Raa7 34.Re3 Rad7 (34...Rf5 35.Nf5 Rf7 36.Re1 Rf5 37.Rc6 Rf2+–) 35.Re1 (35.Re1 Rf6 36.c5+–) 1–0. Vadasz,Laszlo – Liptay,Laszlo, HUN–ch, 1968. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.Bg2 d6 7.0-0 e5)

8.d3 Nbd7 9.c4 Nc5 10.Nfd2 Be6 11.Nc3 Qc8 12.Re1 c6 13.Ba3 Rd8 (13...cb5 14.Nb5 Rd8 15.Rb1=) 14.Rb1 Bh3 (14...Nfd7 15.Nde4 Qc7 16.bc6 bc6 17.Nc5 Nc5 18.Bc5 dc5 19.Qa4+/–) 15.bc6 (15.Bh3!? Qh3 16.Bc5 dc5 17.bc6 bc6 18.Qa4+/–) 15...Bg2= 16.Kg2 Qc6 17.Kg1 h5 (17...Rab8!?=) 18.Bc5+= dc5 19.Qa4 Qc8 (19...Qc7!?+=) 20.Qb5+/– Rb8 21.Nde4 (21.Qa5!? Rd6 22.Qb5+/–) 21...Ne4+= 22.Ne4 b6 23.Nc3 h4 24.Nd5 Kh7? (better is 24...Qe6+=) 25.Ne7+– (25.Nb6?! Qc7+/–) 25...Qh3 (25...Qe6 26.Nc6 hg3 27.hg3+– (27.Nd8?! gf2 28.Kf2 Qf6 29.Kg2 Qd8+/–)) 26.Nc6 hg3 27.hg3 Rd6 (27...e4 28.Nd8 Rd8 29.Qb6 Rh8+–) 28.Nb8 g5 29.Qa6 e4 (29...Rh6 30.Qb7 Qh2 31.Kf1 Qh3 32.Qg2 Qc8+–) 30.Qb7 (30.Rb6 Bd4 31.e3 Rb6 32.Qb6 Be5+–) 30...Re6 31.Rb6 Rb6 32.Qb6 e3 33.Qc5 (33.Qa5 Bd4 34.f4 Qg3 35.Kh1 g4 36.Qa8 Qe1 37.Kh2 Qh4 38.Kg2 Qf2 39.Kh1 Qf1 40.Kh2 Qf4 41.Kg2 Qf2 42.Kh1 Qf1 43.Kh2 Be5) 1–0. Milijanovic,Goran (2185) – Babic,Drasko (2305), YUG–chT Vrnjacka Banja, 1996. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 0-0 6.Bg2 d6 7.0-0 e5)

8.d3 Nbd7 9.c4 Re8 10.e4 a4 11.Nc3 Nc5 12.Ba3 Nfd7 13.Ne1 Nb6 14.Nc2 Ne6 15.Nd5 (cont. unknown, 40 moves) 1–0. Arnaudov – Kupka, Bulgaria 1971.

8.d4 ed4 9.Nd4 Nbd7 10.c4 Nc5 11.Nc3 Be6 12.Ne6 fe6 13.Na4 Na4 14.Qa4 Ra7 15.c5 b6 16.cb6 cb6 17.Rac1 Rc7 18.Qb3 d5 19.Qe3 Rc1 20.Qe6+– Kh8 21.Rc1 Re8 22.Qf7 Re2?? 23.Bf6 Bf6 24.Bh3 Bd4 25.Rc8 Bf2 26.Kf1 Qc8 27.Bc8 (27...Re8 28.Qe8 Kg7 29.Qe7 Kh6 30.Qf8 Kh5 31.Bg4 Kg4 32.Qf4 Kh3 33.Qh4#) 1–0. guest1200 – guest404, ICC, 2005.

6.Na3 0-0 7.Bg2 d6 8.0-0 e5 9.d3 Nbd7 10.Rb1 Nd5 11.Qd2 Nc5 12.c4 Ne7 13.Qd1 Ne6 14.Nd2 Bd7 15.e3 Qc7 16.Qe2 f5 17.f4 g5 18.Kh1 gf4 19.ef4 ef4 20.Bg7 Kg7 21.bc6 bc6 22.d4 (22.gf4 Ng6+=) 22...d5 (22...Rae8 23.d5 cd5 24.cd5+=) 23.gf4 Ng6 24.cd5 Nef4 (worse is 24...Ngf4 25.Qc4 Ng2 26.de6+/–) 25.Qc4 Ng2 26.Nb5?? (better is 26.Kg2 Nf4 27.Kh1 Nd5 28.Nf3–/+) 26...Qc8 27.Nd6 cd5?? (better is 27...Ne3 28.Nc8 Nc4 29.Nc4 Bc8–+ (29...Rfc8?! 30.Rb7 Nf8 31.Ne5=)) 28.Qc8–/+ (28.Nc8?? dc4 29.Nb6 Ne3 30.Nd7 Rfd8–+) 28...Bc8 29.Kg2 f4 30.Rfc1 Ba6 31.Rc7 Kg8 32.Nf3 Rab8–/+ 33.Rb8 Rb8 34.Ng5 Rb2 35.Kh3? h5 36.Rc1 Ra2 37.Rb1 Rb2! 38.Rb2 Bf1 39.Rg2 a4 40.Nb5 Bb5 41.Rg1 a3 42.Nf3 Kf7 43.Ra1 a2 44.Nd2 Kf6 45.Ra2+= Be2 46.Kg2 Nh4 47.Kf2 Bd3 48.Ra5 Be4 49.Ne4 de4 50.Rh5 e3 51.Ke2 Nf5 52.Rf5 Kf5 53.Kf3 e2 ½–½. Leveille,Francois – Bolduc,Steve, Quebec–ch Montreal, 1983. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 c6)

6.Na3 d5 7.Rb1 0-0 8.Bg2 c5 9.0-0 (9.c4 d4 10.d3 Qd6 11.0-0 e5 12.Qc2 Re8 13.e3 Nbd7 14.Nd2=; 9.d3 Qb6 10.c4 d4 11.0-0 Re8 12.e3 e5 13.Nc2 a4 14.h3=) 9...Nbd7 (9...Qb6 10.c4 d4 11.d3 Re8 12.e3 e5 13.Nc2 a4 14.a3=) 10.c4 d4 (10...Nb6 11.Rc1 d4 12.e3 d3 13.Ne1 a4 14.h3=) 11.e3 (11.d3 e5 12.e3 Re8 13.Qc2 de3 14.fe3=) 11...e5 12.d3 Ra7 (12...Re8 13.Qc2 Nb6 14.Rfe1=) 13.Nc2 b6 (13...Qb6 14.Qe2=; 13...Re8 14.Qe2=) 14.Nd2 (14.Qe2=) 14...h5 (14...Re8 15.Qe2=) 15.Qe2+= Bh6 16.Rbe1 Re8 17.Bc1 (17.ed4?! ed4 18.Ne4 Ne4 19.Be4 Nf6+=) 17...Nf8 18.ed4 Bg4 (18...cd4 19.h3+=) 19.f3+/– ed4 20.Ne4 Re4? (20...Ne4 21.Bh6 (worse is 21.fg4 Nf6 22.Qd1 Re1 23.Qe1 Bc1 24.Qc1 Ng4+=) 21...Nf6 22.Qd2+=) 21.de4+/– d3 22.Qd1 d2? (22...Bc1 23.fg4 Ng4 24.Qc1 dc2 25.Kh1+=) 23.Bb2 (better is 23.fg4 Rd7 24.Bd2 Bd2 25.Re2 Ng4 26.Qa1+–) 23...Be6+= 24.Re2 (24.Re3!? Bc4 25.Rf2 Be3 26.Ne3 Bb5 27.a4=) 24...Bc4+= 25.f4 Rd7 (worse is 25...Be2 26.Qe2 h4 27.Rd1=) 26.Rff2 Ng4 (26...Be2?! 27.Re2 g5 28.e5+=) 27.Rd2 (27.Ne3!? Be2 28.Re2 Ne3 29.Re3+=) 27...Nf2–/+ 28.Rd7 Nd1 (28...Nd7?! 29.Kf2 Bb5 30.Kg1+=) 29.Rd8 Nb2 30.Ne3 (30.Na3 Be6–+ (30...Ba2?! 31.Rd2=)) 30...Ba2 31.Rb8 Na4 (31...Bg7 32.e5 f6 33.ef6 Bf6 34.Bd5 Bd5 35.Nd5 Bd4 36.Kf1–+) 32.e5 ½–½. Soppe,G (2435) – Santa Cruz,Arthur, Itau Cup, 2004. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 c6)

6.Na3 d5 7.Bg2 0-0 8.0-0 Nbd7 9.c4 e6 (9...cb5 10.cb5 Re8 11.Rc1 e5 12.d3 h6 13.Qd2=) 10.bc6 (10.Rb1 Qc7 11.bc6 bc6 12.Qa4 e5 13.cd5+=; 10.Qc2 Qe7 11.d4 Rd8 12.Rfc1 Ne4 13.Rab1=; 10.Rc1 Qe7 11.d4 Ne4 12.Qd3 c5 13.Rfd1+=; 10.d3 Re8 11.bc6 bc6 12.Qa4 Ra6 13.Rab1=) 10...bc6 11.Rb1 Qe7 (11...Qc7 12.Qa4 Ba6 13.Bc3+=) 12.cd5 (12.Qa4 Bb7 13.Ne5+=) 12...ed5 (worse is 12...cd5 13.Nb5+/–) 13.d3 (13.Re1=) 13...Re8 14.Re1 Rb8 15.Nc2 Rb2 (better is 15...Rb6=) 16.Rb2+/– Ne4 17.Qc1 (17.d4!?+/–) 17...Bb2+= 18.Qb2 Nef6 19.Ne3 Ba6 20.Rc1 Rb8 21.Qc3 a4 22.Nd4 Ne5 23.Qa5 Qa3 24.Rc2 Rb1 25.Bf1 (25.Nf1 Bb7 26.Qc7 Ned7 27.Nc6 Kg7+/–) 25...Bb5 26.Qd8 Kg7 27.Qc7 Ned7 28.Nb5 cb5 29.Nd5 Nd5 30.Qd7 Qb4 (30...Nf6!? 31.Qd4 b4+=) 31.Qd5+/– Rf1 32.Kf1 Qb1 33.Kg2 Qc2 34.Qe5 Kf8 35.Qd6 Ke8 36.Qe5 Kd8 37.Qd5 Kc7? 38.Qf7+– Kb6 39.h4 Qe2+/– 40.Qh7 Qd3 41.Qf7 Qe4 42.f3 Qc2 43.Kh3 b4 44.Qf6 Kc5 45.Qe5 Kc4 46.Qe6 Kc3 47.Qe5 Kc4 48.Qe6 Kb5 49.Qe5 Qc5 50.Qe8+/– Qc6 51.Qe2 Ka5 52.Qe5 Kb6 53.Qd4 Kb5 54.Qd3 Qc4 55.Qd7 Qc6 56.Qd3 Ka5 57.Qd8 Ka6 58.Qd3 Kb7 59.g4+/– Qc3 60.Qd7 Kb6 61.Qd6 Kb5 62.Qd5 Qc5 63.Qd3 ½–½. Rohrmueller (2185) – Lochte (2165), 1997. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 c6)

6.Na3 d5 7.Bg2 cb5 8.Nb5 Bd7 9.a4 Bb5 10.ab5 Qd7 11.Bd4 Qb5 12.Rb1 Qd7 13.Ne5 Qc7 14.Nd3 Nc6 15.Bf6 Bf6 16.Bd5 0-0 17.c3 a4 18.Bc4 Rfd8 19.f4 e6 20.Bb5 a3 21.Qb3 Qb6 22.Qa2 Ra5 23.Bc4 Qa7 24.Nf2 Bg7 25.Ne4 Kh8 26.d4 Qb8 27.0-0 Qc7 28.Kg2 Ne7 29.Rf3 Rc8 30.Nd2 Nf5 31.Rb3 Rca8 32.Bd3 Ra4 33.e4+= Nh6 34.e5 Qe7 35.Nc4 R4a7 36.Nd6 f5 37.Bc4 Rd8 38.Rb1 Nf7 39.Nf7 Qf7 40.Be6 Qe7 41.Bd5 Rd7 42.c4 Bf8 43.Rfb3 Qd8 44.Rb6 Bh6 45.R1b5 Bf8 46.Qa1 Qa8 47.h3 Be7 48.Rb3 Bd8 49.R6b5 Be7 50.Rb1 a2 51.R1b2 h5 52.Rb6 Kh7 53.Bf7?? Rd4+/– 54.Bg6 Kg7 55.Bf5 Rc4 56.Rg6+– Kf7 57.e6 Kf8 58.Rh6 b5 59.Kh2 Rc1 60.Rh8 (60...Kg7 61.Ra8 (61.Qc1 Qh8 62.Qa1 Kg8–/+) 61...Ra8 62.Qc1+–; 60.Qc1 a1Q 61.Qa1 Ra1 62.Rh8 Kg7 63.Ra8 Ra8 64.Rb5 Ra2 65.Kg1 h4 66.gh4 Ra4+–) 1–0. Comet B50 – Doctor? 3.0, 2005.

6.Na3 d5 7.Bg2 Qb6 8.Bd4 Qc7 9.c4 0-0 10.0-0 Nbd7 11.bc6 bc6 12.cd5 cd5 13.Rc1 Qd8 14.Nb5 Ba6? (better is 14...Rb8 15.a4 Nb6=) 15.Nc7+– e6 16.Na8 Qa8 17.d3 Rb8 18.Qd2 Bb7 19.Rc7 Bf8? (19...Rc8 20.Rfc1 a4+–) 20.Qf4 Bg7 21.Ne5 Ne5 (21...g5 22.Qg5 h6+–) 22.Be5 (22.Qe5?! Ne8 23.Qf4 Nc7 24.Bg7 Kg7 25.Qc7 Rc8 26.Qe5 Kg8+=) 22...g5 23.Qg5 Ne8 (23...h6 24.Qf4 Rc8 25.Rc8 Qc8 26.Bf6 Bf6 27.Qf6 Qc2+–) 24.Re7 Kf8 (24...Nf6 25.Bf6 Kh8 26.Qg7#) 25.Bg7 Ng7 (25...Kg8 26.Bh6 Kh8 27.Rf7 e5 28.Rf8#) 26.Qf6 Re8 (26...Kg8 27.Qf7 Kh8 28.Qg7#) 27.Rf7 (27.Qf7#) 27...Kg8 28.Rg7 (28.Qg7#) 28...Kh8 29.Rg5# (29.Rg6#) 1–0. Krojanski,Hans Georg – Lichtner,Ralph, NRW–chT, 1992. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5 c6)

6.a4 0-0 7.c4 d5 8.cd5 cd5 (8...Qd5 9.Nc3 Qh5 10.Rc1 Bg4 11.Bg2 Bh3 12.Bh3 Qh3 13.Qc2 cb5=) 9.Bg2 Bg4 (9...Bf5 10.0-0 Qd7 11.Bd4 Bh3 12.Nc3 Bg2 13.Kg2 Qe6=) 10.0-0 Nbd7 11.d3 (11.Ra3 Rc8 12.Rc3 Qb6 13.d3 Bf3=) 11...Bf3 (11...Rc8 12.Nbd2 Qb6 13.Nb3 Rc7=) 12.Bf3 e5 (12...Rc8 13.Nd2 e6=) 13.Qb3 (13.Nc3 Nb6=) 13...e4 (13...Rc8 A) 14.Bd5? Nc5 (worse is 14...Nd5 15.Qd5 Nc5 16.Nc3+=) 15.Bf7 Rf7–+; B) 14.Rc1=) 14.de4 de4 15.Bg2 Nc5 16.Qa3 Qd5 17.Nc3 Qh5 18.Rad1 Rad8 19.Bc1 b6 20.Bf4 Rd1 21.Rd1 Rc8 22.h3 Qf5 23.Be3 Bf8 (23...Qe6 24.Bc5 Rc5 25.Rd8 Bf8 26.Nd1=) 24.Qa2+= h5 25.Rd4 Re8 26.Qc2 Qe5 27.Rd1 Ne6? (better is 27...Qf5!?+=) 28.Ne4 Ne4 29.Qe4 (29.Be4 Bc5 30.Bc5 Qc5 31.Bg6 h4+–) 29...Qe4+/– 30.Be4 Bc5 31.Bc6 Re7 32.Rd3 Be3+/– 33.Re3 Kf8 34.Kf1 Nc5 35.Ra3 Re6 36.e3 Rd6 37.Ke2 Ke7 38.Bg2 Kf6 39.Bf1 Ne4 40.Ke1 Nc5 41.Bc4 Rd7 42.Ke2 Ke5 43.f3 g5 44.Bd3 f5 45.Bc2 f4 46.gf4 gf4+= 47.Rc3 Rg7 48.Kf2+/– h4 49.Rc4 Rf7 50.Be4 fe3 51.Ke3 Re7 52.Rd4 Re8 53.Bc2 Rh8 54.Rc4 Rh6 55.Rg4 Kf6 56.f4 Ne6 57.Rg8 Nc5 58.Rc8 Ke7 59.Rc7 Kd8+/– 60.Rc6 Rc6 61.bc6 Kc7 62.Be4 Na4+/– 63.f5 Nc5 64.Bd5 Kd6 65.f6 Na6 66.Ke4 Nc7 67.Ba2 b5 68.Kf5 a4 69.Kg6 Ne8 70.f7 Ke7 71.fe8Q Ke8 72.Kf6 Kd8 73.Ke6 b4?? 74.Kd6 b3 75.Bb1 (75.Bb1 Kc8 76.Bf5 Kb8 77.c7 Kb7 78.c8Q Kb6 79.Qc5 Kb7 80.Qc7 Ka6 81.Bd3#; 75.c7 Kc8 76.Bb1 Kb7 77.Bf5 Ka6 78.c8Q Kb6 79.Qc5 Kb7 80.Qc7 Ka6 81.Bd3#) 1–0. Haik,Aldo – Zueger,Beat, Ol, 1986. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 c6)

6.a4 cb5 7.ab5 d5 8.Bg2 Qb6 9.Bd4 (9.Na3 Ne4 10.d4 Bd7 11.Nd2 Nd2 12.Qd2 Bb5=) 9...Qd8 (9...Qb5 10.Nc3 Qd7 11.Na4+= Qd8 12.Bb6 Qd6+=) 10.c4 (10.Nc3 0-0 11.Ra4 Nbd7 12.Qa1 e6=) 10...dc4 11.Na3 (11.Ra4 Nbd7 12.Rc4 Nb6=) 11...Be6 12.Qa4 0-0 (12...Bd5 13.Bb2=) 13.0-0 (13.Nc4 Bc4 14.Qc4 Nbd7+=) 13...h6 (better is 13...Bd5!? 14.e3 Nfd7 15.Nc4 Bd4 16.Nd4 Nc5=) 14.Nc4+= Nbd7 15.Rfc1 (worse is 15.Na5 b6–/+) 15...b6 16.Nfe5 Nd5 (better is 16...Bc4 17.Rc4 Ne5 18.Be5 Rc8+/–) 17.Nd7+– Bd4 18.Nf8 Kf8 19.Rab1 Bg7 20.Ne3 Rb8 21.Nd5 Bd5 22.Qf4 Ba2 23.Ra1 Ba1 24.Ra1 Be6 (24...g5!? 25.Qe5 f6+=) 25.Qh6+– Kg8 26.Ra4 Qf8 27.Qg5 Rc8 28.Bc6 Bb3 29.Rh4 a4 30.Qe5 f6 31.Qe3 Rb8 32.Qd3 Kg7 33.Rg4 Qf7 34.Be4 g5 35.h4 a3 36.hg5+– f5?? 37.Qc3 Kg6 38.Rh4 fe4 39.Rh6 Kf5 40.Qe3 (40.Qe3 Qg6 41.Qf4 Ke6 42.Rg6 Kd5 43.Qb8+–) 1–0. Davis – Knight, corr, 1985. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5)

6.Nc3 d5 7.Bg2 Ne4 8.Rb1 Nc3 9.Bc3 d4 10.Ba1 Be6 11.bc6 bc6 12.a3 0-0 =.

6.c4 cb5 7.cb5 Qb6 8.e3 0-0 9.a4 Nc6 10.Na3 d5 (better 10...Nb4=) 11.Bf6+/- Bf6 12.bc6 Ba1 13.cb7 Bb7 14.Qa1 Qb4 15.Bb5 (15.Nc2 Qb6+/-) 15...Rfd8? (better 15...d4 16.Be2 Qa4 17.ed4 Rfd8=) 16.0-0+- Rac8 17.d4 Qd6 18.Rc1 (18.Be2 Ba6 19.Nb5 Qf6+-) 18...Rc1 19.Qc1 Rc8 20.Qb2 Qb4 21.Qa1?? (better 21.Qa2+-) 21…Rc3-/+ 0-1. Gravett,A (1820) - Magnussen,P (2000), 44th Guernsey Open, 2018. (=1.Nf3 (A05: Rιti Opening: 1 Nf3 Nf6) 1...Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5)

6.bc6 bc6 7.c4 d6 8.Bg2 0-0 9.0-0 Bd7 10.d3 Na6 11.Nbd2 Rb8 12.Bc3 Nb4 (better is 12...Nc5!?=) 13.a3+/– Na6 14.Qc2 Qc7 15.Rab1 c5 16.e4 Rb1 17.Rb1 Rb8 18.e5 Ne8 19.Re1 e6 20.ed6 Nd6 21.Bg7 Kg7 22.Qc3 f6 ½–½. Kivipelto,KE (2185) – Olesen,P (2080), TCh–Eur Seniors, Dresden GER, 2010. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 c6)

6.Bg2 0-0 7.0-0 Bd7 8.a4 Qc8 9.Re1 (9.Be5 Bg4 (9...c6 10.Nc3 Bh3 11.Rb1 Bg2 12.Kg2 Qe6 13.bc6=) 10.Re1 (10.Ra3 Nbd7 11.Bd4 c5 12.bc6 Qc6 13.Ne5+=; 10.Nc3 Nbd7 11.d4 c5 12.Qe1 cd4 13.Bf6–/+; 10.d4 Nbd7 11.Nbd2 c6 12.h3 Bf3 13.Nf3+=; 10.c3 Nbd7 11.Bf4 Bf3 12.Bf3 e5 13.Bg5=) 10...Nbd7 11.d4 c5 12.h3 Be6 13.Nc3=) 9...Bh3 10.Bh1 Nbd7 (10...Qg4 11.d3 Nbd7 12.Nbd2 c5 13.c4=) 11.c4 c6 12.Nc3 (12.cd5 cd5 13.d3=) 12...Re8 (12...dc4!? 13.bc6 bc6+=) 13.Ng5 (13.cd5+=) 13...Nb6 14.cd5 (worse is 14.Nh3 Nc4 (worse is 14...Qh3 15.Bg2 Qh5 16.cd5 cd5 17.Rc1=) 15.Nf4 Nb2–/+) 14...cd5 (worse is 14...Nfd5 15.Nd5 cd5 16.Bg7 Kg7 17.Qb3+/– (worse is 17.Nh3 Qh3 18.e4 Qd7=); worse is 14...Nbd5 15.Nd5 (worse is 15.Nh3 Qh3 16.Bg2 Qe6+=) 15...Nd5 16.Bg7 Kg7 17.Rc1+/–) 15.Rc1 Qf5 16.Nh3 Qh3 17.Bg2 Qg4 18.d3 Qb4 19.Rb1 e6 20.Nd5 Nfd5 21.Bg7 Qa4 22.Qa4 Na4 23.Bd5 ed5 24.Bd4 Rac8 25.Ra1 Nc3 26.Bc3 Rc3 27.Ra5 Rd3 28.Ra7 Re7 29.ed3 Re1 30.Kg2 Re7 ½–½. Bergman – Clausen, Denmark, 1989. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 d5)

6.Bg2 c5 7.c4 e6 (7...dc4 8.Qa4=) 8.Qc2 (8.d4 dc4 9.Qc2 Nbd7+=) 8...Nbd7= 9.d4 cd4 10.Bd4 Qc7 11.Na3 (11.Qc3 Qc4 12.Qc4 dc4+=) 11...0-0 (11...e5 12.Bb2 d4 13.0-0+=) 12.Qb2 (12.cd5 Qc2 13.Nc2 Nd5 14.Bg7 Kg7+=) 12...Nh5 (12...Qd6 13.0-0+=) 13.Rc1 Qd6 14.Bg7 Ng7 15.0-0 Qb4 16.Rb1 (16.Rc2 Nf5+/–) 16...Nb6 (16...Nf5 A) 17.Qb4?! ab4 18.Nc2 dc4= (worse is 18...Ra2 19.Nb4 Re2 20.cd5+=); B) 17.Rfc1+=) 17.Qc1 (worse is 17.Qb4 ab4 18.Nc2 Nc4 (worse is 18...Ra2 19.Nb4 Re2 20.c5=) 19.Nb4 Bd7+=) 17...Qc5 (17...Qe7 18.Rd1+=) 18.Nd2 (18.cd5 Qc1 19.Rbc1 ed5+/–) 18...Bd7 (18...Qe7 19.Rd1+=) 19.cd5+/– Qc1 20.Rfc1 (20.Rbc1 ed5 21.e4 Be6+=) 20...ed5+= 21.e4 (21.Rc7 Bc8+=) 21...Rfd8 (21...Be6 22.Rc7 Rab8 23.Rbc1+=) 22.Rc7 Rab8 23.ed5 Bf5 24.Be4 (24.Rd1 Nd5 25.Rcc1 Bg4+=) 24...Nd5+= 25.b6 (25.Rc4 Ne3 26.fe3 Rd2=) 25...Ne6 (25...Nc7?? 26.bc7 Be4 27.cd8R Rd8 28.Ne4+–) 26.Rcc1 Nb6 (26...Nb4 27.Bf5 gf5 28.Ndc4 Na2 29.Re1–/+) 27.Bf5 gf5 28.Nf1 (28.Ndc4 Nc4 29.Nc4 a4+=) 28...Nd5 29.Rc4 Nb4 30.Nb5 Rd5 31.a4 Ng5 32.Kg2+= Ne4 33.Rbc1 Rbd8 34.Nc3 Nc3 35.R1c3 b5 36.ab5 Rb5 37.g4 Nd3 38.Ne3 fg4 39.Rg4 Kh8 40.Rc7 Rb2 41.Nc4? Rf2–+ 42.Kg3 Rf6 43.h4 Nf2 44.Rf4 Rd3 45.Ne3 Re3 46.Kf2 Rf4 47.Ke3 Rh4 48.Rf7 a4 49.Ra7 Rb4 (49...Rb4 50.Kf3 h5–+) 0–1. Davey,S – Weiner,M, 5.corr ol, 1968. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 d5)

6.Bg2 c6 7.bc6 Nc6 8.0-0 (8.Nc3 Ne4 9.Rb1 Nc3 10.Bc3 e5 11.0-0 0-0+=) 8...0-0 (8...Bf5 9.Na3 0-0 10.d3 Rc8 11.Rb1 b6=; 8...Bg4 9.Na3 0-0 10.Rb1 Qd6 11.c4 Rac8=) 9.d3 (9.Na3 Bf5 10.d3 Qd7 11.c4 d4=) 9...Re8 (9...b5 10.c4 dc4 11.dc4 bc4+=) 10.Nfd2 (10.Na3 e5 11.Rb1 a4=) 10...Qb6 11.Qc1 e5 (11...Bg4+=) 12.c4 Be6 13.Na3 Rac8 14.Rb1 Qd8 15.Bc3 d4 16.Ba1 Qd7 17.Qb2 Bf8 18.Nc2 Rb8 (better is 18...Nb4!?=) 19.f4+/– Bh3 20.fe5 Bg2 21.Kg2 Ng4 22.Ne4 (better is 22.Nf3+/–) 22...Be7? (better is 22...Re5 23.Nd4 f5 24.Nc6 Qc6=) 23.h3 Nge5 24.Nd4 Nd4 25.Qd4 Qd4 26.Bd4 Bd8 (26...Nc6 27.Bf6+–) 27.Nd6 Re7 28.Rf2 b6 (28...f5 29.Ba7 Ra8 30.Bc5+– (30.Nb7?! Ra7 31.Nd8 Ra8+/–)) 29.Be5 Re5 30.Nf7 Re6 31.Nd8 Rd8 32.a4 Kg7 33.Rb3 h5 34.h4 Rdd6 35.e4 Rd4 36.Rf3 Red6 37.Kf2 Kg8 (37...Rc6 38.Ke3 Rd7 39.Rc3+–) 38.Ke2 (38.Ke3 Rd8+–) 38...Kg7 (38...Rc6 39.Ke3 Rd7 40.Rc3+–) 39.e5 Re6 40.Ke3 Rg4 41.d4 g5 42.hg5 Rg5 43.Ke4 1–0. Broomes (2200) – Shoumali (2200), Buenos Aires, 1978. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 d5)

6.Bg2 0-0 7.0-0 e5 8.c4 e4 9.Nd4 Nbd7 10.Na3 Re8 11.Nac2 Ng4 12.d3 ed3 13.ed3 Nc5 14.Qd2 Ne5 15.Bc3 (15.Ne1 Na4 16.Rb1 h5+=) 15...Ned3–/+ (15...Ncd3 16.f4 Nb4 17.fe5 de5 18.Bb4 (worse is 18.Nb4 ed4 19.Nc6 bc6–/+) 18...ab4 19.Nb3 Qd2 20.Nd2=) 16.Ba5 Ne5 (16...h5 17.h4–/+) 17.Ne3 Ra7 (17...Ng4 18.Ng4 Bg4 19.Bc3+=) 18.Bc3 Ra3 19.f4 Na4 20.fe5 Rc3 (worse is 20...Nc3 21.Ndc2 Re5 22.Rfe1 Ra2 23.Ra2 Na2 24.Qa5+=) 21.Nd1 Ra3 (21...Rc4?! 22.Bd5 Nb6 23.Bf7 Kh8 24.Nf3=) 22.Bd5 (22.Nc2 Be5 23.Qb4 Rd3 (worse is 23...Ba1 24.Qa3 Nb6 25.Na1+/–) 24.Qa4 Ba1 25.Na1 Re2–/+) 22...Re5 (22...Re7 23.Nf3 Nb6 24.Qb4–/+) 23.Bf7 (better is 23.Rf7!? Rd5 24.Rg7 Kg7 25.cd5+=) 23...Kh8–/+ 24.Nc2 Rf5 (24...Bh3!? 25.Qb4 Bf1 26.Qa3 Qf8–/+) 25.Nde3 Rf1 26.Nf1 Rf3 27.Bd5 Rf8 28.Nd4?? (28.Rb1 Nc3 29.Re1 Na2–/+) 28...Qf6 29.Nb3? Bh3–+ 30.Bg2 Nc5 31.Rd1 Ne4! 32.Qd4? Qd4 33.Nd4 Nc3 34.Bh3 Bd4 35.Rd4 Ne2 36.Kg2 Nd4 37.Ne3 Ra8 0–1. Murphy,Conor (1955) – Gu Xiaobing (2205), 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bb2 a5 5.b5)

6.Bg2 0-0 7.0-0 e5 8.d3 Nbd7 9.Nbd2 Nc5 10.a4 (10.c4 h5=) 10...h5 (10...Bg4 11.h3 Bd7 12.Nb3=) 11.Nb3 e4 (11...Nfd7 12.Bh3=) 12.Nfd2 e3 13.fe3 Ng4 14.Bg7 Kg7 15.Rf3 Ne5 16.Rf4 Ne6 (16...g5 17.Rd4 Qe7+/–) 17.h3 Covers g4 (better is 17.Re4+=) 17...Nf4+= 18.ef4 Nd7 19.Nc4 Nf6 (19...h4 20.Nba5 d5 21.Bd5–/+) 20.Nca5= (20.Nba5? d5–+) 20...d5 21.Qd2 Qd6 22.c4 c6 (22...h4 23.g4=) 23.c5 (23.bc6 bc6 24.Nd4 Bd7=) 23...Qc7= 24.e4 de4 25.de4 Rd8 26.Qc3 Be6 27.bc6 (27.Nb7 Qb7 28.Na5 Ra5 29.Qa5 Qd7+=) 27...bc6 28.Nc4 Rab8 29.Nd4 Bc4–/+ 30.Qc4 h4 31.e5 Nd5+= 32.gh4?? Rb4–+ 33.Qd3 Ne7 34.f5?? Rbd4–+ 35.f6 Kg8 36.Qb3 Nd5 37.Re1 Re8 38.Qg3 Qa7 39.Rc1 Qa4 40.e6 Rd1 41.Rd1 Qd1 42.Kh2 Re6 0–1. Fluvia Poyatos,Jordi (2245) – Rada Equiza,Miguel (2155), ESP–ch U20 Mondariz, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7)

6.Bg2 a4 7.0-0 0-0 8.d3 Nbd7 9.Na3 e5 10.e4 Nc5 11.Re1 Bg4 12.h3 Bd7 13.Rb1 Be6 14.c4 Nfd7 15.Bc1 h6 16.Be3 f5 17.Nh4 fe4 18.de4 Qf6 19.Qd2 g5 20.Nf5 Bf5 21.ef5 Qf5 22.b6 Nb6 (worse is 22...cb6 23.Nb5+=) 23.Nb5 Kh8 (better is 23...e4!? 24.Nd6 cd6 25.Rb6 Nd3=) 24.Nd6= cd6 25.Rb6 Rad8 26.Rd1 Ne6 27.Rb7 (worse is 27.Bb7 Qh3 28.Qc2 Nd4 29.Bd4 ed4=) 27...Nd4 28.Qd3 Qd3 29.Rd3 Rb8 30.Bd4 Rb7 31.Bb7 ed4 32.Bc6 Rc8 33.Bb5 Be5 34.Kg2 Rc5 35.f4 Bf6 36.fg5 hg5 37.Ba4 Rc4 38.Bd1 Rc3 39.Rf3 Be5 40.Bb3 Rc1 41.h4 gh4 42.gh4 Rc3 43.a4 d3 44.Bd1 d2 45.Rf2 Rg3 46.Kf1 Bc3 47.Rf3 Rf3 ½–½. Cempel,Jaroslav (2270) – Blazkova,Petra (2255), Morava–chT, 1997. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7)

6.Bg2 Bd7 7.c4 a4 8.0-0 c6 9.Na3 Qb6 10.d3 cb5 11.Nb5+= Bb5 12.Rb1 Qa5 13.Bf6+/– Bf6 14.Rb5 Qa6 15.Qb1+– Ra7 16.Rb6 Qa5 17.Rb7 Rb7 18.Qb7 0-0 19.Rb1 Qc3 20.Qa7 a3? 21.Rb8 Qa1 22.Bf1 Qa2 23.Rb5 Bb2 24.Qe7 Qb1 25.Ng5 a2 26.Rb8! Qf1 27.Kf1 a1Q 28.Kg2 (28...Qf1 29.Kf1 Bg7 30.Rf8 Bf8 31.Qf7 Kh8 32.Qf8#) 1–0. Fritz 10 – NN, 2006.

6.Bg2 e5 7.d3 0-0 8.0-0 Nbd7 9.c4 Nc5 10.Nc3 Re8 11.Nd2 h5 12.Qc2 (12.Nde4 A) 12...Nfe4 13.Ne4 Ne6 14.e3 a4 15.a3 f5 16.Nc3+=; B) 12...Ne6 13.e3 (13.Nf6 Qf6 14.e3 Qd8 15.a3 h4 16.Qc2+=) 13...Ne4 14.Ne4 a4 15.a3 h4 16.Rb1+=; C) 12...Nce4 13.Ne4 h4 14.Qd2 a4 15.f4 hg3 16.hg3+=; 12.Nce4 A) 12...Nce4 13.Ne4 Ne4 14.Be4 h4 15.Qd2 hg3 16.fg3+=; B) 12...Ne6 13.Nf6 (13.e3 Ne4 14.Ne4 a4 15.a3 h4 16.Rb1+=) 13...Bf6 14.e3 a4 15.a3 Bg7 16.Rb1+=; C) 12...Ncd7 13.Bc1 (13.a3 Ne4 14.Ne4 f5 15.Nc3 Nc5 16.Rb1+=; 13.Rb1 Ne4 14.Ne4 f5 15.Nc3 Nc5 16.Nd5+=) 13...Ng4 14.h3 Ngf6 15.Rb1 h4 16.Qc2+=; D) 12...Nfe4 13.Ne4 Ne4 14.Be4 h4 15.Qd2 hg3 16.fg3+=) 12...h4 (12...Ng4 13.Rab1 (13.a3 h4 14.h3 Nh6 15.Bc1 Nf5 16.Nde4=; 13.Nde4 Ne4 14.Ne4 h4 15.Bc1 f5 16.Bg5+=; 13.Nce4 Ne4 14.Ne4 Qe7 15.Bc1 f5 16.Nc3+=; 13.Rad1 h4 14.h3 Nh6 15.e3 hg3 16.fg3+=) 13...h4 14.h3 Nh6 15.e3 hg3 16.fg3+=) 13.Nd5 (13.Nde4 Nfe4 14.Ne4 Ne6 15.e3 h3 16.Bh1+=; 13.Nce4 Nce4 14.Ne4 a4 15.a3 Ne4 16.Be4+=; 13.a3 Bf5 14.Rab1 Qd7 15.e4 Bg4 16.f3=) 13...Bg4 (13...Nd5 14.Bd5 Bh3 15.Rfb1 Rc8 16.a3=) 14.Nb3 (14.Nf6 Qf6 15.f3 Be6 16.f4=) 14...Nd5 (14...Nb3 15.ab3 Nd5 16.Bd5=) 15.Bd5 Rb8 (15...Nb3 16.ab3 Qc8 17.Bc3=) 16.Nc5+= dc5 17.f4 (better is 17.Bc3!?+=) 17...c6= 18.Bg2 h3 19.Bh1? (19.Bf3 Bf3 20.Rf3= (worse is 20.ef3 ef4 21.Bg7 Kg7–/+)) 19...ef4–+ 20.Bg7 fg3 (20...Kg7?! 21.Rf4 Be2 22.Qc3 f6 23.Re1 cb5 24.Rf2=) 21.Bf3 gh2 (21...Bf3 22.Rf3 Kg7 23.e3 gh2 24.Qh2 cb5 25.cb5–+) 22.Kh2 Qd6 23.Kh1 Bf3 24.Rf3 Kg7 25.Raf1 Re7 26.R1f2 (26.bc6 Qc6 27.Qc3 Kg8–/+) 26...Rbe8 27.bc6 bc6 (27...Qc6!? 28.Qb2 Kg8–/+) 28.Rh3 Re3 29.Rhh2 Qd4 30.Qc1 a4 31.Qg1 R8e5 32.Qg2 a3 33.Qf1 f5 34.Qg2 Qa1 35.Rf1 Qa2 36.Qg5 Re2 37.Rh6 Re6 38.Rg1 Kf7 39.Qd8 (39.Qd8 Qb2 40.Rh7 Qg7 41.Qh8 Qh7 42.Qh7 Kf8 43.Rg6 Rg6 44.Qg6+–) 1–0. Sigurjonsson (2435) – Root (2400), Lone Pine, 1981. (=1.Nf3 Nf6 2.g3 g6 3.b4 a5 4.b5 Bg7 5.Bb2 d6)

4.a3 d5 5.Bb2 Bg7 6.d3 0-0 7.Nbd2 a5 8.Bg2 ab4 9.ab4 =.

4.a3 d5 5.d3 Nc6 6.Bg2 Bg7 7.0-0 Nd7 8.c3 0-0 9.d4 =.

4.a3 d5 5.d4 Bg7 6.Bg2 Ne4 7.0-0 0-0 8.Ne5 Nd7 9.Bb2 =+.

4.a3 d5 5.Bg2 Bg7 6.0-0 Nc6 7.Bb2 h5 8.d3 h4 9.Nh4 =.

4.Bb2 Bg7 5.Bg2 d6 6.0-0 0-0 7.Nc3 c6 8.a4 Nbd7 9.b5 ab5 10.ab5 Ra1 11.Qa1 c5 12.Qa8 Nb6 13.Qa7 Qc7 14.Ra1 Bd7 15.Qa2 e6 16.d4 c4 17.Nd2 d5 18.e4 h5 19.e5+= Ng4 20.h3 Nh6 21.Nf3 Rb8 22.Qb1 Qc8 23.Bc1 Ra8 24.Bh6 Bh6 25.Ra8 Qa8 26.Qb4 Bf8 27.Qb2 Qa5 28.Nd2 Ba3 29.Qa1 Qb4 30.Ndb1+= Bb2 31.Qa7 Bc3 32.Nc3 Qc3 33.Qb6 Qa1 34.Kh2 Qa8 35.h4 Qe8 36.Qb7 Bb5 37.c3 Bc6 38.Qc7 Qd7 39.Qd7 Bd7 40.Bh3 Ba4 41.Kg2 Bd1 42.f3 Bc2 43.Kf2 Bd3 44.Ke3 Kf8 45.Kf4 Ke7 46.Kg5 Be2 47.Bg2 Bd3 48.g4 hg4 49.fg4 Kf8 50.h5 gh5 51.gh5 Kg7 52.h6 Kh7 53.Bf3 Bg6 54.Bh5 Bh5 55.Kh5 Kg8 56.Kg5 Kh7 57.Kf6 Kh6 58.Kf7 (58.Kf7 Kg5 59.Ke6 Kg6 60.Kd5 Kf7 61.Kc4 Ke6 62.Kc5 Kf5 63.c4 Ke6 64.Kc6 Kf5 65.Kd6 Ke4 66.e6 Kd4 67.c5 Ke4 68.c6 Kd4 69.c7 Ke4 70.e7 Kf5 71.c8Q Ke4 72.e8Q Kf4 73.Qe5 Kf3 74.Qh3 Kf2 75.Qee3) 1–0. gbsrao (2340) – vampirex (2385), net–chess.com, 2011.

4.c3 a5 5.Qa4 Bg7 6.Bg2 c6 7.b5 d5 8.0-0 Ne4 9.Bb2 =.

4.c3 a5 5.b5 c6 6.Na3 d5 7.Bg2 Ne4 8.Bb2 Bg7 9.Qc2 =.

4.c3 b6 5.a4 Bg7 6.Bg2 Bb7 7.0-0 0-0 8.d3 d6 9.h3 =.

4.c3 b6 5.d3 Bg7 6.Bg2 0-0 7.0-0 Nc6 8.d4 d5 9.Bf4 =.

4.c3 b6 5.d4 Bg7 6.Nbd2 0-0 7.Bg2 d5 8.0-0 Nbd7 9.a4 =.

4.c3 b6 5.Bg2 Bg7 6.d4 Bb7 7.0-0 0-0 8.Nbd2 d6 9.Re1 =.

4.Nc3 d5 5.a3 Bg7 6.Bb2 Nc6 7.Bg2 0-0 8.d4 Bf5 9.0-0 =+.

4.Nc3 d5 5.d4 Bg7 6.Ne5 Nbd7 7.Bg2 c6 8.f4 0-0 9.0-0 =.

4.Nc3 d5 5.Bg2 Nc6 6.a3 Bg7 7.0-0 0-0 8.d4 Ne4 9.Bb2 =+.

4.Bg2 Nc6 5.c3 Bg7 6.d4 0-0 7.0-0 d5 8.Nbd2 Re8 9.a4 =.

4.Bg2 d5 5.0-0 Bg7 6.c3 0-0 7.Qb3 a5 8.b5 a4 9.Qc2 =.

4.Bg2 d5 5.c3 Bg7 6.h3 0-0 7.0-0 Nc6 8.d4 Ne4 9.Bf4 =.

4.Bg2 d5 5.d3 Bg7 6.c3 Nc6 7.0-0 e5 8.d4 e4 9.Ne5 =.

4.Bg2 d5 5.d4 Bg7 6.Ne5 Nbd7 7.0-0 c6 8.Nd3 h5 9.Nd2 =+.

4.Bg2 e6 5.a3 Bg7 6.0-0 d6 7.d4 0-0 8.c4 Nbd7 9.Nc3 =.

4.Bg2 e6 5.c3 Bg7 6.d4 0-0 7.0-0 d6 8.Nbd2 Nc6 9.a4 =.

5.Bb2 Bb7 6.Bg2 Bg7 7.d3 Nc6 8.0-0 0-0 9.c4 =.

5.d3 Bg7 6.Bg2 Bb7 7.0-0 d6 8.c4 Nfd7 9.Ra2 =.

5.d4 Bg7 6.Bg2 Bb7 7.c4 0-0 8.0-0 c5 9.dc5 =.

5.Bg2 Bg7 6.0-0 0-0 7.Bb2 Bb7 8.d3 d6 9.c4 =.

5.h3 Bg7 6.Bb2 0-0 7.Bg2 Bb7 8.0-0 d6 9.d3 =.

5.a4 Nbd7 6.d4 Bg7 7.Nbd2 0-0 8.Bg2 Re8 9.0-0 =.

5.Qb3 a5 6.Qa4 Nbd7 7.Bg2 Bg7 8.d3 0-0 9.0-0 =+.

5.d3 Bg7 6.Bg2 Nc6 7.Nbd2 e5 8.0-0 e4 9.de4 =.

5.d4 a5 6.Qa4 Bd7 7.b5 c6 8.e3 Bg7 9.Ne5 =+.

5.Bg2 Bg7 6.Qb3 Nc6 7.d4 0-0 8.0-0 h6 9.Bf4 =.

5.a4 0-0 6.Bg2 d5 7.0-0 Nc6 8.d4 Ne4 9.Bf4 =.

5.Bb2 0-0 6.Bg2 d5 7.0-0 Nc6 8.a4 Qd6 9.d4 =.

5.Qc2 Nc6 6.Bg2 0-0 7.0-0 d5 8.d3 e5 9.Nbd2 =+.

5.d3 0-0 6.Bb2 d5 7.Bg2 Re8 8.0-0 e5 9.c4 =+.

5.Bg2 d5 6.0-0 Nbd7 7.d4 h6 8.Nbd2 0-0 9.h3 =.

5.a4 Bg7 6.Bg2 0-0 7.0-0 d6 8.a5 e5 9.d4 =.

5.Bb2 Bg7 6.Bg2 0-0 7.0-0 d5 8.d3 Nbd7 9.c4 =.

5.d3 Bg7 6.Bg2 d6 7.Bb2 e5 8.0-0 0-0 9.Nbd2 =.

5.d4 d5 6.Nbd2 Bg7 7.Bg2 0-0 8.a4 a5 9.b5 =.

5.h3 Bg7 6.Bg2 0-0 7.d4 a5 8.b5 d5 9.Ne5 =.

5.a3 Bg7 6.Bg2 e5 7.d4 ed4 8.Nd4 0-0 9.0-0 =.

5.Rb1 e5 6.a3 e4 7.Ng1 Bg7 8.d3 d5 9.de4 =+.

5.d3 Nb4 6.Bg2 Bg7 7.0-0 0-0 8.h3 Nc6 9.Rb1 =+.

5.d4 Nb4 6.a3 Nc6 7.d5 Na5 8.Bg2 Bg7 9.Rb1 =+.

5.Bg2 e5 6.Bb2 Bb4 7.a3 Ba5 8.Nb1 d6 9.0-0 =+.

5.a3 d5 6.d4 0-0 7.Bg2 c6 8.0-0 Bf5 9.Bf4 =.

5.a4 d5 6.Bb2 Qd6 7.b5 0-0 8.Bg2 d4 9.Nb1 =+.

5.Rb1 d5 6.Bg2 0-0 7.d4 c6 8.0-0 Nbd7 9.a4 =.

5.Bb2 0-0 6.a4 d5 7.Bg2 Re8 8.0-0 e5 9.d3 =+.

5.Bg2 0-0 6.0-0 d5 7.d4 Bf5 8.Nh4 Be6 9.a3 =.

5.0-0 Bg7 6.a3 0-0 7.Bb2 d6 8.c4 Nbd7 9.Nc3 =.

5.Bb2 d5 6.0-0 Bg7 7.a4 0-0 8.d3 Qd6 9.b5 =.

5.c3 Bg7 6.d4 d5 7.0-0 0-0 8.Nbd2 Qd6 9.a4 =.

5.d3 Bg7 6.c3 0-0 7.0-0 d6 8.Bb2 Nc6 9.Nbd2 =.

5.d4 Bg7 6.0-0 0-0 7.c3 d6 8.Nbd2 Nc6 9.e4 =.

4.a3 c5 5.b5 Nc7 6.a4 a6 7.b6 (7.ba6 Bg7=+) 7...Ne6 8.a5 d6 9.Bg2 Bd7 10.Bb2 Bg7 11.0-0 Bc6 12.c4 0-0 13.e3 Rc8 14.d3 h6 15.Nbd2 Ng5 16.d4 cd4 17.ed4 (< 17.Nd4 Bg2 18.Kg2 Qd7–/+) 17...Nf3 18.Nf3 Be4 19.Qe2 ½–½. Matamoros Franco,C (2490) – Garcia Luque,A (2330), Open, Dos Hermanas ESP, 2000.

4.a3 c5 5.b5 Nc7 6.a4 Bg7 7.Bb2 0-0 8.c4 (8.Bg2 d5=) 8...d5=+ 9.cd5 Ncd5 10.Bg2 a6 11.Na3 ab5 12.ab5 b6 ½–½. Saralegui,Adolfo Enrique (2080) – Sanhueza,Cristian (2260), 47 Abierto Internacional, 2016. (=1.Nf3 Nf6 2.g3 g6 3.b4 Na6)

4.c3 Bg7 5.d4 d6 6.Bg2 0-0 7.0-0 c5 8.a3 Rb8 (8...cd4 9.cd4 Bf5 10.Nc3=) 9.dc5+= dc5 10.Bf4 Ra8 11.Ra2 (11.b5 Nb8=) 11...Be6 12.Rd2 Qb6 13.Ng5 Bc4 (worse 13...cb4 14.Be3 Qb5 15.Ne6 fe6 16.cb4+–) 14.Ne4 Rad8 (14...Ne4 15.Be4 Rac8 16.Be3=) 15.Be3 (15.Nc5!? Nc5 16.bc5 Rd2 17.cb6 (17.Bd2?! Qb5=; 17.Nd2?! Qc5 18.Be3 Qc7+=) 17...Rd1 18.Rd1 ab6 19.e3+–) 15...Ne4= 16.Be4 Qc7 17.Bf3 (17.Bb7 cb4 18.cb4 Be2 19.Qe2 Qb7+=) 17...b5 18.h4 (18.Qc2 e5=) 18...Be6 (18...Rd2 19.Nd2 Rd8 20.Qc1=) 19.Bf4 Qc8 20.Qc1 Nb8 (20...Bg4 21.Rd8 Rd8 22.Bg4 Qg4 23.Rd1=+) 21.Rfd1 (21.Bg5 f6 22.Bf4 Nd7=) 21...Bb3 (21...Nd7 22.Qb2=) 22.Rd8 Rd8 23.Rd8 Qd8 24.Qd2 Qc8 25.bc5 Nd7 (25...e5!? 26.Be3 a6+=) 26.c6+– Ne5 27.Bg2 (27.Be5 Be5 28.Qd7 Qc7+–) 27...h5 (27...Be6!?+=) 28.Qe3+– Qc7 29.Nd2 Ba2 30.Qc5 (30.Kh1 a6+–) 30...a6 31.Qb4 e6 (31...Be6!?+–) 32.a4 ba4? (32...Bd5 33.Bd5 ed5 34.ab5 ab5 35.Qb5+–) 33.Qa4 (33.c4 Nc6 34.Qa4+– (34.Bc7 Nb4 35.Bd6 Bf8–/+)) 33...Bd5 34.Bd5 ed5 35.Qa6 (35.Qa6 Qc6 36.Qc6 Nc6 37.c4 dc4 38.Nc4+–) 1–0. Demirbag,Alihan (2035) – Karahan,Anil (1780), Turkish Cup (11), 2018. (=1.Nf3 Nf6 2.g3 g6 3.b4 Na6)

4.a4 ba4 5.Bg2 Bb7 6.Nc3 Bg7 7.0-0 (7.Ra4 a5=) 7...0-0 (7...Nd5!?=+) 8.Na4+= Nc6 (8...Nd5 9.Rb1+=) 9.Nc5+/- Bc8 10.b5 Nb8 11.Ne5 c6 12.bc6 d6 (12...dc6 13.Nc6 (13.Bc6? Nc6 14.Nc6 Qd6 15.Ne7 Qe7-+) 13...Nc6 14.Bc6+/-) 13.Ncd7! Nbd7 (13...Nbd7 14.cd7 Double attack (14.cd7 Passed pawn); 13...Bd7 14.cd7 Passed pawn; 13...Nfd7 14.cd7 Double attack (14.cd7 Passed pawn)) 14.cd7 (14.Nd7?! Nd7 15.cd7 A) worse 15...Bd7 16.c3+= (16.Ba8?! Qa8 17.c3 Bh3=); B) 15...Ba1 16.Ba8 Bd7=) 14...Rb8?? (better 14...Bd7 15.Ba8 Qa8 16.Nd7 Nd7+-) 15.Nc6 (worse 15.dc8B de5 16.Bch3 Qc7+-) 15...Nd7 (15...Qd7 16.Nb8 Qc7 17.Nc6+-) 16.Nd8 (16.Nd8 Ba1 17.Nc6+-) 1-0. JorgeRomero (2140) – antonionycz, Rated Blitz tournament, lichess.org, 2015. (=1.Nf3 (A05: Reti Opening: 1 Nf3 Nf6) 1...Nf6 2.g3 g6 3.b4)

4.a4 c6 5.ab5+= cb5 6.Bg2 Bb7 7.Bb2 Bg7 8.d3 (8.Nc3 Nc6+=) 8...d6 9.Nbd2 Nbd7 (9...Na6 10.c4=) 10.Nb3 e5 11.Na5 Qb6 (11...Bf3 12.Bf3 d5 13.Nc6+=) 12.Nb7+/– Qb7 13.0-0 d5 (13...Qb8!?+/–) 14.Ne5+– 0-0 (14...Ne5 15.Be5 Qe7 16.d4+–) 15.Nf3 (15.Nd7 Qd7 16.Ra6 Nh5 17.Bg7 Ng7+–) 15...Rab8 (15...Nb8 16.Nd4+–) 16.Ra5 Rfd8 17.Qa1 Rdc8? (better is 17...a6+–) 18.Ra7 Qc6 19.Nd4 Qd6 20.Qa5 Bf8 21.Bh3 Rd8 22.Ra1 Qb6 23.Qb6 Nb6 24.Nc6 Kg7 25.Nd8 Rd8 26.R1a6 Nbd7 27.Rd7 Rd7 28.Bf6 Kg8 29.Bd7 Bb4 30.Ra8 (30.Ra8 Bf8 31.Be7+–) 1–0. jvanmechelen (2520) – grahamtrue (2180), net–chess.com, 2009.

4.Bb2 Bb7 5.Bg2 Bg7 6.0-0 0-0 7.d3 d6 8.Nbd2 Nbd7 9.e4 e5 10.c4 a6 11.Rc1 Nb6 12.c5 dc5 (better is 12...Na4 13.Ba1 Re8=) 13.Rc5 (13.bc5 Na4 14.Be5 Qd3 15.c6+/– (15.Bc7?! Nc3 16.Ne5 Qd4 17.Rc3 Qc3=)) 13...Nfd7 (13...Na4!? 14.Qc2 Nc5 15.bc5 Re8 16.Ne5 Ne4=+) 14.Rc2= Re8 15.Qa1 Na4 16.Rfc1 c6 17.Bh3 (17.Nb3 Qc7=) 17...Nb2 18.Qb2 Nb6 19.Qb3 Na4 20.Nb1 a5 21.Nc3 (better is 21.a3!?=+) 21...ab4–+ 22.Na4 Ra4 (22...ba4?! 23.Qb4 Ra7 24.Qd2=) 23.Rc5 Qe7 24.Kg2 Rd8 (24...Rea8 25.R1c2–+) 25.Rd1?? (better is 25.R1c2–/+) 25...Qc5–+ 0–1. gbsrao (2285) – grahamtrue (2325), net–chess.com, 2010.

4.Bb2 Bb7 5.Bg2 Bg7 6.0-0 0-0 7.d4 d5 (7...a5!?+=) 8.Nbd2 Nbd7 9.Re1 (9.Nb3 Nb6+=) 9...Re8 (9...Nb6 10.Qc1=) 10.a4 ba4 11.Ra4 Bc6 12.Ra5 a6 13.Qa1 Bb5 14.e4 de4 15.Ne4 Nd5 16.Nfd2 (16.c3 N7b6+=) 16...N7b6 (16...Nb4 17.Rc1 Rb8 18.c4=) 17.Qa2 (17.c3!?+=) 17...Nb4= 18.Qb3 Nc6 Can d4 get defended? 19.Ra3? (19.Ng5 e6 20.Rb5 ab5 21.Bc6 Qg5 22.Nf3=) 19...Nd4–+ 20.Bd4 Bd4 21.c4 Bc5?? (better is 21...Bc6–+) 22.Nc5+– (22.cb5 Ba3 23.Qa3 ab5=) 22...Qd2 23.Rea1?? (better is 23.Rd1 Bc4 24.Rd2 (24.Ba8?! Qg5 25.Qe3 Qe3 26.Re3 Na8=) 24...Bb3 25.Ba8+– (25.Nb3?! Nc4 26.Ba8 Ra8+/–)) 23...Bc4–+ (23...Nc4?! 24.R3a2 Qd6 25.Ba8 Qc5 26.Bf3–/+) 24.Qd1 Qd1 25.Rd1 Rad8 (25...Red8 26.Re1 Ra7 27.Bf3–+) 26.Rda1 Rd2 27.Na6 Nd5 (better is 27...Red8!? 28.h4 Rd1 29.Kh2 Ra1 30.Ra1 Rd7–+) 28.Bd5+= Bd5 (worse is 28...Rd5 29.Nc7 Rb8 30.Nd5 Bd5 31.Kf1+=) 29.Nc7 Rc8 30.Nd5 Rd5 31.Ra8 Ra8 ½–½. gbsrao (2435) – alaamattar (2365), net–chess.com, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 b5)

4.Bb2 Bb7 5.Bg2 Bg7 6.d3 d6 (6...a5 7.ba5 0-0 8.c4 bc4 9.dc4=) 7.e4 (7.a4 ba4 8.0-0 0-0=) 7...a5 8.a3 ab4 9.ab4 0-0 10.0-0 Ra1 11.Ba1 Nc6 12.Bc3 Qa8 13.Re1 Re8 14.Nbd2 Qa4 15.Qb1 Ra8 16.Qb2 e5 17.Nb3 Qa6 18.Ra1 Qb6 19.Na5 Na5 20.ba5 Qc6 21.Nd2 Bc8 22.d4+= Nd7 23.d5 Qc5 24.Bb4 Qa7 25.Bf1 Ba6 26.Rc1 Bh6 27.c4 bc4 28.Bc4 Bc4 29.Rc4+= Rb8 30.Qc3 Nc5 31.Bc5+/– dc5 32.Nb3 Rb5 33.Nc5+– Rb1 34.Kg2 Rc1? 35.Qe5 Rc4 36.Qe8 Kg7 37.Nd7 g5 38.Qf8 Kg6 39.Ne5 Kh5 40.Qf7# 1–0. gbsrao (2300) – grahamtrue (2100), net–chess.com, 2009.

4.Bb2 e6 5.a4 Bb4 6.ab5 Bb7 7.Bg2 0-0 8.0-0 Bc5 9.d4 Bb6 (9...Be7 10.c4+=) 10.c4+– c6 11.c5 Bc7 12.Nc3 d5 13.cd6 Bd6 (13...Bd6 14.Ne5 Combination; 13...Qd6 14.Ba3 Decoy) 14.Ne5 Qb6? (better 14...Qc8+=) 15.Nc4+– Qc7 16.Nd6 Qd6 17.Ba3 Qd8 (17...Qc7 18.Bf8 Kf8 19.Qb1+–) 18.Bf8 Qf8 19.Rb1 Nd5 20.Qb3 Nd7 21.bc6 Bc6 22.Nd5 (22.Bd5?! ed5 23.Nd5 Qd6+–) 22...ed5 23.Bd5 Bd5 24.Qd5 Nf6 25.Qf3 Kg7 (25...Qd8 26.e4+–) 26.e4 Rd8 27.e5 Nd5 28.Rb7 a5 (28...Qe8 29.Ra1 Rd7 30.Raa7 Rb7 31.Rb7+–) 29.e6 (better 29.Ra1 Kg8+–) 29...Kh8 (29...Ne7 30.Qa3 Kf6+–) 30.Rf7 Qd6 31.Rb1 Ne7 (31...Qe6 32.Rbb7 Qe1 33.Kg2 Ne3 34.fe3 Qf2 35.Kf2 Kg8 36.Qf6 Rd4 37.Qg7) 32.Qf6 Kg8 33.Qg7 1–0. marekt – ffrancis, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 b5)

4.Bb2 Bg7 5.Bg2 Na6 6.a3 Rb8 (6...c6 7.c3=) 7.0-0 c5 8.c3 0-0 9.d4 cd4 10.cd4 d5 11.Nbd2 Bg4 12.h3 Bd7 13.Nb3 Ne4 14.Nfd2 Ng5 15.h4 (worse 15.Bd5 Bh3 16.Bg2 Bg2 17.Kg2 Qd5 18.f3 Ne6=+) 15...Ne6 16.Bd5 Bc8 17.Be6 Be6 18.Nf3 Qd5 19.Nc5 Nc5 20.bc5 h6 21.Re1 Bf5 22.Qd2 a6 23.Rac1 Bd7 (23...Rfc8!?+=) 24.e4+– Qh5 25.Nh2 White prepares the advance d5 25...Rfc8 26.d5 Bb2 27.Qb2 Bh3 28.Qe2 Qe2 29.Re2 Rc7 30.f3 Bc8 31.Nf1 a5 Black intends b4 32.Ne3 Ba6 33.Rd2 b4 34.Rb2 b3 35.Kf2 a4 36.e5 h5 37.d6 ed6 38.ed6 Rd7 39.Nd5 Kg7 40.c6?? (better 40.Nc3 Rc8 41.Na4 Rd6 42.cd6 (42.Rb3?! Rd2 43.Kg1 Re8+–) 42...Rc1 43.Rb3+–) 40...Rd6+= 41.c7 Re8 42.Nb4 Bc8 43.Rc6 (43.Nc6 Kf8=) 43...Rde6 44.Re6 Re6 (44...Be6?! 45.Na6–+) 45.Rd2 Bb7 (45...Re7 46.Nd5 Rd7 47.Ke3=) 46.f4 (46.Rd1 Rf6 47.f4 Rb6=) 46...Re7 (46...Re4 47.Nd3 Rc4–+) 47.Nd5= Rd7 48.Ke3 f5 49.Nb6 (49.Rd4!? Bc8 50.Rd2=) 49...Rc7=+ 50.Na4 Be4 51.Nb2 (51.Kd4 Rc2 52.Ke3–+) 51...Rc3–+ 52.Kd4 Rg3 53.Ke5 Rh3 54.Rd7 Kh6 55.a4 (better 55.Rd8!? Rc3 56.a4–/+) 55...Rh4–+ 56.a5? (56.Kf6 Bc6 57.Rc7 Bd5=+) 56...Rh2 57.Kf6 h4?? (57...Rc2 58.Rd8 Rc6 59.Ke7–+) 58.Rd8?? (better 58.Nc4=+) 58...Kh5–+ 59.Nc4 b2 (better 59...Kg4 60.Rb8 Kf4 61.Rb3 g5–+) 60.Nb2 (60.Ne5 b1Q 61.Rh8) 60...Rb2–+ 61.a6 Ra2 62.Rh8 Kg4 0–1. whitecat25 – JAY2PLAY, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 b5)

4.Bb2 Bg7 5.Bg2 Bb7 6.0-0 0-0 7.d3 d6 8.Nbd2 Nbd7 9.a4 c6 10.c4 (10.ab5 cb5 11.Ra5 Bc6+=) 10...e5 (10...bc4 11.Nc4 c5 12.b5=) 11.c5 (11.cb5!? cb5 12.ab5+=) 11...dc5= 12.Ne5 Re8 (better is 12...Ne5 13.Be5 Qe7 14.Bf6 Bf6=) 13.Nc6 Bc6 (13...Qc7!? 14.ab5 a6+/–) 14.Bc6+– cb4 15.Ba8 Qa8 16.ab5 Rb8 17.Qa4 Nd5 (17...Qd5 18.Qb4 Rb5 19.Qd4+–) 18.Bg7 Kg7 19.Qa7 Qa7 20.Ra7 N7b6? (20...Nc5 21.d4 Ne6 22.Nb3+–) 21.Ne4 Rd8 22.Ng5 Rf8 23.Ne6 Kg8 24.Nf8 Kf8 25.Rb7 h5 26.e4 1–0. gbsrao (2195) – grahamtrue (2210), net–chess.com, 2010.

4.Bb2 Bg7 5.Bg2 Bb7 6.0-0 0-0 7.d3 d6 8.Nbd2 Nbd7 9.c4 bc4 10.Nc4 Nb6 11.Na5 Rb8 12.Nb7 Rb7 13.Nd4 d5 14.Nc6 Qa8 15.Ne7 Kh8 16.Nc6 Na4 1-0. timofeevich (1940) - raul50 (1615), Rated Blitz game, lichess.org, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4)

4.Bb2 Bg7 5.Bg2 Bb7 6.c4 0-0 7.0-0 a5 8.b5 c5 9.Nc3 e6 10.d3 d5 11.cd5 ed5 12.d4 Nbd7 13.e3 cd4 (13...Rc8 14.a4=) 14.Nd4+= Ne5 15.Rc1 Nc4 16.Ba1 Rc8 17.Qe2 Qc7 18.Nd1 (18.Rc2 Qd6+=) 18...Qd6 (18...Ne4 19.Nf3=) 19.Nb2+= Nb2 20.Bb2 Ne4 21.Rfd1 Rfe8 22.Be4 (22.Rc8 Bc8 23.Nc6 Bb2 24.Qb2 Bd7+/-) 22...Re4 (22...Rc1 23.Bc1 Re4 24.f3=) 23.Qd3 Ree8 24.Ba3 Qd7 25.Qb3 h5 26.Rc2 (26.Bb2 Rc5=) 26...h4 (26...Rc2 27.Nc2 d4 28.Nd4 Bd4 29.ed4 Qd4-/+) 27.Ne2? (27.Bb2!?=) 27...Qg4 (27...Rc2 28.Qc2 d4 29.Nf4-+) 28.Rd4? (28.Bb2 Rc2 29.Qc2 Bb2 30.Qb2-+) 28...Bd4-+ 29.Nd4? (29.Rc8 Bc8 (worse 29...Qc8 30.Nd4 hg3 31.hg3-+; worse 29...Rc8 30.Nd4 Qe4 31.gh4-+) 30.Nd4 Qe4-+) 29...h3?? (29...Qd1 30.Kg2 Rc2 31.Qc2 Qc2 32.Nc2 d4 33.Kf1-+) 30.Rd2? (better 30.Rc8 Bc8 31.Qd3-+) 30...Qe4-+ 31.f3 Qe3 32.Qe3 Re3 33.Bd6 Rc1 34.Kf2 Ree1 35.Re2?! (35.g4-+) 35...Re2 36.Ke2 Rh1 (better 36...Ra1 37.g4 Ra2 38.Kd3-+) 37.g4 Rg1 38.Ke3 Rg2 39.a4 Ra2 40.Nc6 (40.Bc7-+) 40...Ra4 41.Nd8 (41.Nd4 Ra1-+) 41...Ba8 (41...d4 42.Kd3 Bf3 43.Nc6-+) 42.f4 (42.Nc6 Bc6 43.bc6 Rc4-+) 42...Rc4 (42...d4 43.Kd3 Bg2 44.f5-+) 43.f5 (43.Kd3 a4-+) 43...gf5 44.gf5 a4 45.Be5 (45.Kd3-+) 45…a3 (45...a3 46.Kd3 a2-+) 0-1. timofeevich (2140) - stronger (2100), Rated Classical game, lichess.org, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 b6)

5.0-0 Bg7 6.Bb2 0-0 7.c4 c5 8.b5 e6 9.d3 (9.Nc3 d5=) 9...d5 10.Nbd2 d4 11.a4 Nbd7 12.Re1 (12.a5 a6= (worse is 12...ba5 13.Nb3+/–)) 12...Qc7 (12...a5 13.Ng5 Bg2 14.Kg2+=) 13.Qc2 (13.a5 a6=) 13...Rfe8 (13...a6 14.Nb3+=) 14.a5 ba5 15.Nb3 a6 (15...a4 16.Ra4 a6 17.ba6 Ra6 18.Ra6 Ba6 19.Ra1=) 16.Na5+/– ab5 17.Nb7 Ra1 (17...Qb7? 18.Nd4 Ra1 19.Ra1+– (19.Bb7 Re1 20.Kg2 cd4 21.cb5 Bh6+=; 19.Ba1?! Qb6 20.Nb5 Ng4+–)) 18.Ra1 Qb7? (better is 18...bc4!? 19.Na5 c3+=) 19.Nd4+– Qb6 20.Nb5 e5 (20...Nd5 21.Bg7 Kg7 22.Ra7+–) 21.Bc3 Ng4? (21...Rb8+–) 22.Ra7 Nf8 (22...Nb8 23.Bd5 Rf8 24.h3+–) 23.Bd5 Ne6 24.Ba5 Qb8 25.Ra8 (25.Rf7! Kf7 26.Bc7 Qa8 27.Ba8 Ra8+–) 25...Qa8 26.Ba8 Ra8 27.Bc3 h5 (27...f6 28.Qb2 Bf8 29.Bd2+–) 28.h3 Nh6 29.Qb2 f6 (29...Nf5 30.Be5 Be5 31.Qe5+–) 30.Nd6 Rd8 (30...Kh7 31.Ne4 Ra7 32.Qb6+–) 31.Qb6 Bf8 32.Nb7 Re8 33.Qc6 Re7 (33...Kf7 34.e4+–) 34.Nc5 Nc5 35.Qc5 Nf5 (35...Kf7 36.Qd5 Re6 37.c5+–) 36.Qb6 (better is 36.e4 Rf7 37.Qc6 Ng7+–) 36...Bg7 (36...Kf7+–) 37.c5 Re8 38.Qb3 Kh7 39.c6 Nd6 (39...Ne7 40.c7 Nc8+–) 40.Qd5 Nc8 41.Qd7 Rh8 (41...Rg8 42.Ba5 h4 43.gh4+–) 42.Ba5 (42.Ba5 e4 43.de4+–) 1–0. Hepting,Heinrich (2155) – Radeck,Jochen (1890), Mittelfrankenliga–B2a, 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 b6)

5.0-0 Bg7 6.Bb2 0-0 7.c4 d6 8.d3 c5 9.a3 Nbd7 10.Nbd2 d5 11.cd5 Bd5 12.Rc1 Rc8 13.b5 Re8 14.Nc4 Ng4 (14...a6!? 15.ba6 Ra8+=) 15.Bg7+= Kg7 16.e4 Ba8 17.Re1 e5? (better is 17...Bb7!?+/–) 18.Nd6+– Nf8 19.Nc8 Qc8 20.Qb3 Qe6 21.Qc4 f6 22.h3 Nh6 23.Kh2 Nf7 24.Qe6 Ne6 25.h4 Rd8 26.Red1 Nd4 27.Nd4 Rd4 28.Rc4 f5 (28...Rd8 29.Ra4 a5 30.ba6+/–) 29.Rd4+– ed4 30.ef5 Bg2 31.Kg2 gf5 32.Re1 Kf6 33.f4 Nh6 (33...Nd6 34.a4+–) 34.a4 (34.Re8 Nf7+–) 34...Ng4 (34...Kf7 35.Re5 Kf8 36.a5+–) 35.Kf3 (better is 35.Re8+–) 35...Kf7 36.a5! h5 (36...ba5 37.Ra1 Decoy) 37.ab6 ab6 38.Ra1 Ne3 (better is 38...Nf6+–) 39.Ra7 Ke6 40.Rh7 1–0. NikMed – Ollemsolrac, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 b6 4.Bg2 Bb7)

5.0-0 Bg7 6.Bb2 0-0 7.c4 d6 8.d3 c5 9.b5 Qc7 10.Qd2 Nbd7 11.Nc3 Rae8 12.Rad1 e6 13.e4 d5 14.ed5 ed5 15.cd5 Nd5 16.Nd5 Bd5 17.Bg7 Kg7 18.Rfe1 h6 19.Qb2 Kh7 20.d4 c4? (better is 20...Re1!? 21.Re1 Rd8+=) 21.Ng5!+/– hg5 22.Bd5 Nf6 23.Bc6 Rd8 24.Qd2 g4 25.Rc1 Qd6 26.Rc4 Nd5 27.Qg5 f5?? (better is 27...Nf6+–) 28.Bd5 Qd5 (28...Rde8 29.Re8 Re8 30.Bf7 Re1 31.Kg2+–) 29.Rc7 (29.Rc7 Rd7 30.Rd7 Qd7 31.Re7 Rf7 32.Rd7 Rd7 33.Qe3+–) 1–0. steveberkley – Ollemsolrac, ChessWorld.net, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 b6 4.Bg2 Bb7)

5.0-0 Bg7 6.Bb2 0-0 7.d3 d6 8.Nbd2 e5 9.Re1 Re8 10.e4 Nbd7 11.Nc4 Nf8 12.a4 a6 13.Ne3 Ne6 14.c4 a5 15.ba5 ba5 16.Nd5 Nd7 17.Rb1 c6 18.Nc3 Ndc5 19.Ba3 Rb8 20.Re2 Ba6 21.Reb2 Rb2 22.Rb2 Qc7 23.h4 (23.Qe2 Rb8=) 23...Bf6 24.Bh3 Bc8 25.Bc5 (25.h5 h6=) 25...Nc5 26.Bc8 Qc8 (26...Rc8 27.Qc2=+) 27.Kg2 (27.Qe2 Qc7=) 27...Bg7 28.Nb1 f5 29.Nc3 Rf8 Black prepares f4 30.Qe2 f4 31.Rb1 Bh6 32.Rd1 (32.h5 fg3 33.hg6 hg6–/+) 32...fg3 33.fg3 Qg4 34.Ng1 Qe2 35.Nge2 Be3 36.d4 Rf2 37.Kh3 ed4 (37...Na4!? 38.d5 Nc3 39.Nc3–/+) 38.Nd4–/+ Bd4 39.Rd4 Rf3 40.Nd1 Kf7 41.Rd6 (41.Kg2 Rf6–/+) 41...Rg3! 42.Kh2 (42.Kg3 Ne4 Double attack) 42...Ne4 43.Rc6 (43.Rd4 Rg4 44.Rd7 Kg8 45.Ra7–+) 43...Rd3 44.Rc7 Kf6 45.Rh7 Rd1 46.Ra7 Kf5 47.Ra5 Kg4 48.Ra6 (48.Rd5 Ra1 49.Rd4 Ra2 50.Kg1 Kg3 51.Rd3 Kf4–+) 48...Rd2 49.Kg1 Ng3 (49...Ng3 50.Rg6 Kh3 51.Rg3 Kg3–+) 0–1. Spiridonov,Niko1 (2140) – Demchenko,A (2670), 17th Rochefort Open (1), 2018.

6.c4 0-0 7.0-0 e6 8.d3 Nc6 9.a3 d5 10.Nbd2 Re8 11.Qc2 Qd7 12.Rfc1 Re7 13.b5 Nd8 (13...Na5 14.Ne5 Qe8 15.Bc3+=) 14.a4 c5 15.a5 ba5 (15...d4 16.Re1+/–) 16.Ra5 Qc7 (16...d4 17.Rca1+–) 17.Rca1+– Qb6 18.Qa4 Bc8 19.Qa3 Rc7 20.Be5 1–0. Poleschi,Ricardo D (2425) – Gandolfo,Hugo (2185), LIAPE Magistral I, 2002. (=1.Nf3 Nf6 2.g3 g6 3.b4 b6 4.Bg2 Bb7 5.Bb2 Bg7)

7.c4 c5 8.a3 Na6 9.Qb3 d5 10.d3 d4 11.b5 Nc7 12.e3 de3 13.fe3 Ne6 14.Nbd2 Bh6 15.Rfe1 Qd6 16.a4 Rad8 17.Ra3 Qc7 18.a5 Ng4 19.ab6 ab6 20.Nf1 Ra8 21.Ra8 Ra8 22.h3 Nf6 23.Be5 Qc8 24.Bb2 Ra7 25.e4 Nd7 26.Ne3 Qb8 27.Kh2 Nf6 28.Nd5 Qd8 29.Ne5 Bf8 30.Nc6 Bc6 31.bc6 Nd5 32.cd5 Ng7 33.Rb1 Ne8 34.Bc3 Ra6 35.Qb5 Nc7 36.Qb2 f6 37.d4 cd4 38.Bd4 b5 39.Ra1 Qa8 40.Ra6 Qa6 41.e5 Qa5 42.Qf2 Ne8 43.d6 ed6 44.ef6 Qc7 45.Bd5 Kh8 46.f7 Ng7 47.Qf6 1–0. Ivanka Budinsky – Erenska Radzewska, Balatonfured 1987.

7.c4 c5 8.Qb3 cb4 9.Qb4 d6 10.d3 Na6 11.Qd2 Nc5 12.Nc3 Rc8 13.e4 Nfd7 14.Qe2 Ne5 15.Rad1 Nf3 16.Qf3 f5 17.Qe3 fe4 18.d4 Nd7 19.Ne4 Ba6 20.Nd2 Nf6 21.Rc1 Rc7 22.d5 Qc8 23.Qb3 g5 24.Bd4 b5 25.Qe3 bc4 26.Rc3 h6 27.Qe2 Qf5 28.f4 g4 29.Bf6 Bf6 30.Ra3 Qc8 31.Be4 Bb7 32.Qe3 c3 33.Nb3 c2 34.Ra7 Rc3 35.Qc1 Rb3 36.ab3 Qc5 37.Kh1 Qa7 38.Qc2 Qc5 39.Qe2 Bd5 40.Qg4 Bg7 41.Qf3 Be4 42.Qe4 Rc8 43.Qe6 Kh8 44.b4 Qc6 45.Kg1 Bd4 0–1. Gasparian – Polovnikova, 1998.

7.c4 d6 8.d4 Nbd7 9.Nbd2 Ne4 10.Qc2 Nd2 11.Qd2 c5 12.dc5 Bb2 13.Qb2 dc5 14.b5 Qc7 15.a4 a6 16.h4 h5 17.Ra3 Rfd8 18.Re3 Nf8 19.Ne5 Bg2 20.Kg2 ab5 21.ab5 Rd6 22.Nc6 e6 23.Ra1 Ra1 24.Qa1 Rd2 25.Qf6 Qb7 26.f3 Rd7 27.Ra3 Nh7 28.Qa1 Nf8 29.Ra7 Qc8 30.Ra8 Rd1 31.Ne7 1–0. Smyslov – Arnlind, Stockholm 1964.

7.d3 a6 A) 8.a3 A1) 8...Nc6 9.c4 (9.Nbd2 Qc8 10.d4 d5 11.c4 dc4 12.Nc4 Rd8 13.Qb3 Bh6 14.Ne3) 9...e6 10.d4 Ne4 11.Qd3 d5 12.Nbd2 Qe7 13.Rac1 Bf6 14.Rfd1; A2) 8...d5 9.Nbd2 (9.c4 dc4 10.dc4 Nc6 11.Qb3 Qd7 12.Nc3 Rfd8 13.Rfd1 Qf5 14.Nd5) 9...Nc6 10.c4 Qd7 11.Qc2 Rad8 12.cd5 Qd5 13.Nc4 Qh5 14.e4; A3) 8...e6 9.c4 (9.d4 d5 10.Qd3 Qe7 11.Nbd2 Nbd7 12.c4 c5 13.Qb3 cd4 14.Nd4; 9.e4 Nc6 10.Nc3 e5 11.Nd5 Nd5 12.ed5 Nd4 13.Nd4 ed4 14.Re1; 9.Nbd2 Nc6 10.e4 d6 11.Qe2 e5 12.Nc4 Re8 13.Rab1 Qe7 14.Ne3; 9.Nc3 d5 10.d4 Qe7 11.Bc1 a5 12.b5 c5 13.bc6 Nc6 14.Rb1; 9.Re1 Nc6 10.Nc3 d5 11.d4 Ne7 12.Qd2 Nf5 13.Ne5 Qd6 14.e3) 9...Nc6 10.Nc3 d5 11.cd5 ed5 12.d4 Re8 13.Qc2 Qd7 14.Rfd1; A4) 8...d6 9.c4 c5 10.Nc3 Nc6 11.bc5 bc5 12.Rb1 Na5 13.Qc2 Rb8 14.Nd1; A5) 8...Qc8 9.c4 (9.Nc3 d5 10.e4 de4 11.Ne4 Ne4 12.Bg7 Nf2 13.Rf2 Kg7 14.Qd2; 9.e4 Nc6 10.Nc3 e5 11.Nd5 d6 12.c4 Qd7 13.Qd2 Rfe8 14.Rfe1; 9.Nbd2 Nc6 10.e4 d5 11.Bf6 Bf6 12.ed5 Nd4 13.Nd4 Bd4 14.Rb1) 9...Nc6 10.Nc3 d6 11.Qd2 Qf5 12.Nd5 Nd5 13.cd5 Ne5 14.Ng5; A6) 8...Ra7 9.c4 (9.Nbd2 Nc6 10.c4 d5 11.Qb3 e6 12.Rac1 d4 13.b5 ab5 14.cb5; 9.e4 Nc6 10.Nc3 e5 11.Re1 Qe7 12.Nd5 Qd6 13.Ne3 b5 14.a4) 9...Nc6 10.Nc3 e6 11.d4 d5 12.c5 Ng4 13.Rb1 Re8 14.Qd2; A7) 8...Re8 9.c4 Nc6 10.Nc3 e5 11.Ng5 Nh5 12.Qd2 h6 13.Nf3 Nf6 14.e4; B) 8.Nbd2 B1) 8...d5 9.Rb1 (9.a4 e6 10.b5 Nbd7 11.c4 Ng4 12.Bg7 Kg7 13.Qc2 Re8 14.d4; 9.c4 Nc6 10.a3 e6 11.Qc2 Qd7 12.Rac1 Rac8 13.cd5 ed5 14.e4; 9.a3 Nc6 10.c4 Qd7 11.Qc2 Rad8 12.cd5 Qd5 13.Nc4 Qb5 14.Nfe5; 9.Ne5 Nc6 10.Nc6 Bc6 11.c4 Qd6 12.Rc1 Qb4 13.cd5 Qb2 14.Rc6; 9.Qb1 Nc6 10.c4 Re8 11.b5 Na5 12.a4 dc4 13.dc4 Qc8 14.Rd1) 9...Nc6 10.c4 Qd7 11.a4 Rfd8 12.a5 Ra7 13.ab6 cb6 14.c5; B2) 8...Nc6 9.a3 (9.Qb1 e6 10.Nc4 b5 11.Ne3 Qe7 12.a3 Nd5 13.Bg7 Kg7 14.Qb3; 9.Nd4 d5 10.Nc6 Bc6 11.c4 Qd6 12.Rc1 Qb4 13.cd5 Qb2 14.Rc6; 9.Ne5 d5 10.Nc6 Bc6 11.c4 Qd7 12.Rc1 Ra7 13.Qb3 Re8 14.Be5) 9...d6 10.Nc4 Qd7 11.Qc1 Rfe8 12.Bc3 e5 13.e4 Ng4 14.h3; C) 8.Na3 C1) 8...d5 9.c4 (9.Ne5 Nc6 10.Nac4 Nb4 11.Qd2 Nc6 12.Nc6 Bc6 13.Ne5 Bb7 14.Rab1) 9...Nc6 10.Qd2 Qd6 11.Rab1 e6 12.b5 ab5 13.Nb5 Qd8 14.Rfc1; C2) 8...Nc6 9.Rb1 (9.Ne5 d5 10.Nc6 Bc6 11.Nc4 Qe8 12.Ne5 Ng4 13.d4 Ne5 14.de5; 9.Nd4 d5 10.Nc6 Bc6 11.Nc4 Qe8 12.Ne5 Ng4 13.d4 Ne5 14.de5) 9...d5 10.Qd2 e6 11.c4 Qe7 12.Rfc1 e5 13.b5 ab5 14.cb5; D) 8.Nc3 D1) 8...d5 9.a3 (9.d4 Nc6 10.a3 Qd6 11.Qd2 Rfe8 12.Qf4 Qf4 13.gf4 Red8 14.Rfd1; 9.a4 Nc6 10.b5 Nb4 11.Qd2 Qd6 12.Ba3 Ng4 13.ba6 Ba6 14.h3; 9.Qd2 Nc6 10.Nd1 Ra7 11.c3 Ng4 12.h3 Bh6 13.Qc2 Nf6 14.Bc1; 9.e3 Nc6 10.a3 e5 11.Ng5 h6 12.Nf3 Re8 13.Re1 Qd6 14.Qd2; 9.Rb1 Nc6 10.a3 e5 11.Qd2 Qd6 12.Ng5 Rad8 13.Rbd1 h6 14.Nf3) 9...Nc6 10.d4 Qd6 11.Qd2 Rfe8 12.Qf4 Qf4 13.gf4 Red8 14.Rfd1; D2) 8...Re8 9.a4 (9.e4 e5 10.Qd2 Qe7 11.Nd1 Nc6 12.Ne3 Qb4 13.Qb4 Nb4 14.Be5) 9...e5 10.a5 b5 11.Qd2 Nc6 12.Ne4 Ne4 13.de4 Re6 14.Rfd1; D3) 8...Nc6 9.a3 (9.Ng5 d5 10.a3 d4 11.Nce4 Nd5 12.Qd2 h6 13.Nh3 g5 14.Rae1) 9...d5 10.d4 Qd6 11.Qd2 Rfe8 12.Qf4 Qf4 13.gf4 Red8 14.Rfd1; E) 8.c4 E1) 8...e6 9.Qb3 (9.Nbd2 d5 10.Rc1 Nc6 11.Qb3 Qe7 12.a3 Rfd8 13.Ne5 Rac8 14.cd5; 9.Qd2 Nc6 10.b5 ab5 11.cb5 Ne7 12.Na3 Ra5 13.Qc2 Nf5 14.e4; 9.Qc2 Nc6 10.a3 d5 11.Nbd2 Re8 12.Rac1 Rc8 13.b5 ab5 14.cb5; 9.a3 Nc6 10.Qc2 Qe7 11.Nbd2 Ra7 12.d4 b5 13.Qd3 Ng4 14.h3; 9.Nc3 Nc6 10.a3 d5 11.cd5 ed5 12.d4 Re8 13.Qc2 Qd7 14.Rad1) 9...Nc6 10.Nbd2 Qe7 11.Ne5 Rab8 12.Nc6 Bc6 13.Bc6 dc6 14.Rab1; E2) 8...c5 9.bc5 bc5 10.Nc3 Nc6 11.Rb1 Rb8 12.Na4 d6 13.Bc3 Ng4 14.Ng5; E3) 8...d5 9.Nc3 (9.a3 Nc6 10.Nbd2 Qd7 11.Qc2 e6 12.d4 Rfe8 13.Qd3 Ng4 14.Rac1; 9.Nbd2 Nc6 10.a3 e6 11.Qc2 Qd7 12.d4 Rfd8 13.Rad1 Qe7 14.Rfe1; 9.cd5 Nd5 10.Bg7 Kg7 11.Qd2 Nc6 12.a3 e5 13.Nc3 Nc3 14.Qc3) 9...Nc6 10.Nd5 Nd5 11.Bg7 Kg7 12.cd5 Qd5 13.Qd2 Qd6 14.Rab1; E4) 8...Nc6 9.b5 (9.Qb3 e6 10.Nbd2 Qe7 11.a3 Rfe8 12.Ne5 d5 13.Ndf3 Ne5 14.Ne5; 9.Qd2 d5 10.cd5 Nd5 11.Bg7 Kg7 12.a3 e5 13.Nc3 Nc3 14.Qc3; 9.a3 e6 10.Nc3 d5 11.Qb3 d4 12.Ne4 Ne4 13.de4 Qe7 14.Rac1) 9...Na5 10.Nbd2 d5 11.Qc2 ab5 12.cb5 Qd7 13.a4 c5 14.bc6.

7.d3 Na6 A) 8.Qe1 A1) 8...c5 9.bc5 Nc5 10.Nc3 Rc8 11.Qd2 Ne6 12.Ne5 Bg2 13.Kg2 Qc7 14.d4; A2) 8...e6 9.b5 (9.e4 c5 10.b5 Nc7 11.e5 Nfd5 12.Qe2 d6 13.c4 Ne7 14.Nbd2; 9.Na3 Qe7 10.Rb1 c5 11.bc5 Nc5 12.Nc4 Bd5 13.Qb4 Rfc8 14.Nd4; 9.a3 c5 10.e4 Qe7 11.e5 Ng4 12.h3 Nh6 13.c3 Rad8 14.Nbd2) 9...Nc5 10.Nc3 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 Qe7 14.Qc1; A3) 8...c6 9.c4 (9.Qd2 Ne4 10.Qc1 Nf6 11.Qd2 d5 12.a3 c5 13.Be5 Qd7 14.bc5; 9.Na3 c5 10.bc5 Nc5 11.Rb1 d6 12.Nc4 Qd7 13.Qd2 b5 14.Ne3; 9.e4 d6 10.Na3 c5 11.bc5 Nc5 12.Nc4 Rc8 13.Qb4 d5 14.ed5; 9.a3 c5 10.c4 d5 11.b5 Nc7 12.Nbd2 a6 13.a4 Ne6 14.cd5) 9...Nc7 10.Nc3 a5 11.b5 cb5 12.cb5 a4 13.Ne5 Qb8 14.a3; A4) 8...Qb8 9.Qd2 (9.Na3 c5 10.bc5 Nc5 11.Rb1 d6 12.Nc4 Qc7 13.Qd2 Nce4 14.Qe1; 9.e4 c5 10.bc5 Nc5 11.Nc3 d6 12.Rb1 Qc7 13.Nb5 Qd7 14.Qb4) 9...Re8 10.c4 c5 11.a3 d6 12.Rc1 e5 13.b5 Nc7 14.Nc3; A5) 8...d6 9.Qd2 d5 10.a3 c5 11.Be5 Qd7 12.bc5 Nc5 13.Nc3 Rad8 14.Bd4; A6) 8...Qe8 9.Na3 (9.Qd2 Ne4 10.Qc1 Nf6 11.Qd2 Ne4 12.Qc1 Nf6 13.Qd2 Ne4 14.Qc1; 9.a3 c5 10.Qc3 Nc7 11.Nbd2 Ne6 12.Qb3 d6 13.e4 Qb5 14.e5) 9...d5 10.Rb1 Qa4 11.Qd2 Rfe8 12.c4 Rad8 13.Qd1 Qd1 14.Rfd1; A7) 8...d5 9.Na3 Qd7 10.Rb1 Qa4 11.Qd2 Rfe8 12.c4 Rad8 13.Qd1 Qd1 14.Rfd1; B) 8.a3 c5 9.Qd2 (9.c3 Nc7 10.c4 Ne6 11.Nc3 a6 12.Qc2 Qc7 13.e4 Nd4 14.Nd4) 9...d6 10.b5 Nc7 11.Nc3 Ne6 12.a4 Qc7 13.e4 a5 14.Rfe1; C) 8.c3 c5 9.Qb3 (9.a3 Nc7 10.c4 Ne6 11.Nc3 d6 12.Bh3 a6 13.Rb1 Qc7 14.Qd2; 9.Qd2 cb4 10.cb4 Rc8 11.Na3 Nd5 12.Bg7 Kg7 13.Rab1 d6 14.e4; 9.b5 Nc7 10.c4 a6 11.ba6 Ra6 12.Nc3 d5 13.Qb3 d4 14.Nb5) 9...Rc8 10.a3 Nc7 11.Nbd2 Ne6 12.Nc4 Qc7 13.Ne3 d5 14.Rad1; D) 8.Qd2 d5 (8...Ne4 9.Qc1 Nf6 10.Qd2 d5 11.Be5 Qd7 12.a4 Rfd8 13.b5 Nc5 14.Nc3) 9.c3 (9.b5 Nc5 10.Be5 a6 11.Nc3 ab5 12.Nb5 c6 13.Nc3 Ncd7 14.Bf4; 9.Be5 Qd7 10.a4 Rfd8 11.b5 Nc5 12.Nc3 a5 13.h3 Nfe4 14.de4; 9.a4 c5 10.bc5 Nc5 11.Nc3 a6 12.a5 b5 13.Nd1 Ne6 14.Ne3; 9.Bd4 Qd7 10.Ne5 Qe6 11.b5 Nc5 12.Qe3 a6 13.Nc3 ab5 14.Nb5) 9...c5 10.Na3 Qd7 11.Ne5 Qd6 12.Nec4 Qd7 13.Ne5 Qd6 14.Nec4.

7.d3 d5 A) 8.Nc3 A1) 8...Qd6 9.Nb5 (9.a3 Nc6 10.Nb5 Qd7 11.Qd2 e5 12.c4 Rfe8 13.cd5 Nd5 14.Rfc1; 9.Rb1 a5 10.b5 Nbd7 11.e4 de4 12.Ng5 Nc5 13.d4 Ne6 14.Nce4) 9...Qb4 10.a4 Nc6 11.Bc3 Qg4 12.Nc7 Rac8 13.Nb5 a6 14.Nbd4; A2) 8...a6 9.d4 (9.a3 Nc6 10.d4 Qd6 11.Qd2 Rfd8 12.Rab1 Qd7 13.Qd3 Qf5 14.e3; 9.Qd2 Nc6 10.a3 e5 11.Ng5 Qd6 12.Rfd1 Rfe8 13.Re1 h6 14.Nf3; 9.a4 Nc6 10.b5 Nb4 11.Qd2 Qd6 12.Ba3 a5 13.Na2 Qd7 14.Nb4; 9.e3 Nc6 10.a3 e5 11.Qd2 Re8 12.Rfe1 Bh6 13.Qe2 Qd6 14.Rab1; 9.Ng5 Nc6 10.a3 e5 11.Qd2 Qd6 12.e3 h6 13.Nf3 Rfe8 14.Rfe1) 9...Qd6 10.a3 Nbd7 11.Bc1 Ne4 12.Qd3 e5 13.Be3 Qc6 14.Ne4; B) 8.Qd2 B1) 8...Na6 9.a3 (9.c3 c5 10.Na3 Qd7 11.Ne5 Qd6 12.Nec4 Qd7 13.Ne5 Qd6 14.Nec4; 9.b5 Nc5 10.Be5 Ncd7 11.Nc3 Ne5 12.Ne5 Qd6 13.Nc4 Qe6 14.d4) 9...c5 10.Be5 d4 11.c3 dc3 12.Nc3 cb4 13.ab4 Nb4 14.Rfc1; B2) 8...c5 9.bc5 (9.Rd1 Nc6 10.b5 Na5 11.Be5 d4 12.Na3 Rc8 13.c3 Bf3 14.Bf3) 9...Ne4 10.Qc1 Nc5 11.Bg7 Kg7 12.Qb2 f6 13.d4 Ne6 14.Nbd2; B3) 8...a6 9.a4 (9.a3 Nc6 10.Nc3 e5 11.Ng5 Qd7 12.Rfe1 h6 13.Nf3 e4 14.de4; 9.Nc3 Nc6 10.Nd1 Ra7 11.c3 Ng4 12.h3 Bh6 13.Qc2 Nf6 14.Bc1; 9.Re1 Nc6 10.a3 Re8 11.Nc3 e5 12.Rad1 Qd6 13.Ng5 h6 14.Nf3; 9.Ne5 Nfd7 10.f4 e6 11.c4 Ne5 12.Be5 Nc6 13.Bg7 Kg7 14.cd5) 9...Qd6 10.Be5 Qd7 11.Nd4 Ne4 12.de4 Be5 13.f4 Bd4 14.Qd4; C) 8.b5 C1) 8...Nbd7 9.Nbd2 (9.a4 a6 10.Nbd2 Nc5 11.d4 Ng4 12.h3 Nh6 13.c4 Ne6 14.cd5; 9.Nc3 e5 10.e3 a6 11.a4 ab5 12.ab5 Qe7 13.Qe2 Qb4 14.Rfb1) 9...a6 10.a4 Nc5 11.d4 Ng4 12.h3 Nh6 13.c3 Ne6 14.Qb3; C2) 8...a6 9.a4 (9.c4 ab5 10.cb5 c5 11.bc6 Nc6 12.Nc3 Qd7 13.Qb3 d4 14.Na4) 9...ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Qd2 Nc5 13.Be5 Qd7 14.Nc3; D) 8.Nbd2 Qd6 9.a3 (9.c4 Qb4 10.Rb1 Qa5 11.cd5 Bd5 12.e4 Bb7 13.e5 Nfd7 14.Re1; 9.Rb1 Nbd7 10.e4 Ng4 11.Nd4 Bd4 12.Bd4 de4 13.Bc3 Ndf6 14.de4) 9...Nbd7 10.c4 Ng4 11.Nd4 c6 12.h3 Nh6 13.cd5 cd5 14.Nb5; E) 8.Na3 a5 (8...Nbd7 9.c4 a5 10.b5 Nc5 11.Qd2 Re8 12.Ne5 Na4 13.cd5 Bd5 14.Nc6) 9.c3 (9.b5 Nbd7 10.c4 Nc5 11.Qd2 e6 12.cd5 ed5 13.Rab1 Re8 14.Nc2) 9...Nbd7 10.Qb3 Qb8 11.Rfd1 Re8 12.Ng5 e5 13.Rac1 h6 14.Nf3; F) 8.e3 F1) 8...a6 9.Nc3 (9.a3 Nc6 10.Nbd2 Qd7 11.Qe2 Rad8 12.Nd4 Ng4 13.N2f3 Qd6 14.Nh4; 9.Qe2 Nc6 10.a3 Qd6 11.Nbd2 Rad8 12.Rfd1 e5 13.c4 Rfe8 14.cd5; 9.Nbd2 Nc6 10.a3 Qd7 11.Qe2 Rac8 12.Nd4 Ng4 13.Rab1 Rce8 14.N2f3; 9.Qd2 Nc6 10.a3 Re8 11.Nc3 e5 12.Rae1 e4 13.Nd4 Nd4 14.ed4; 9.Re1 Nc6 10.a3 Qd6 11.Nbd2 Rad8 12.Qe2 Rfe8 13.d4 Qe6 14.c4) 9...Nc6 10.a3 e5 11.Qd2 Re8 12.Rfe1 Bh6 13.Nh4 Qd6 14.Qe2; F2) 8...Na6 9.Bc3 (9.Qd2 Qd6 10.b5 Nc5 11.Nc3 a6 12.a4 a5 13.Ba3 Qd7 14.Ne5; 9.a3 c5 10.bc5 Nc5 11.Nc3 Qd6 12.Nb5 Qd7 13.Rb1 a6 14.Nbd4; 9.c3 c5 10.a3 Nc7 11.Nbd2 Ne6 12.c4 Rb8 13.Qc2 Ng4 14.h3; 9.Qe1 Qd6 10.a3 c5 11.Be5 Qc6 12.bc5 Nc5 13.Nd4 Qd7 14.Nc3) 9...c5 10.b5 Nc7 11.a4 Ne6 12.Qd2 a5 13.Be5 Qd7 14.Na3; G) 8.Qc1 G1) 8...Qd6 9.b5 (9.Qf4 Qf4 10.gf4 Nh5 11.Bg7 Kg7 12.e3 a6 13.Nc3 Nf6 14.a4; 9.a3 Nbd7 10.Nc3 a6 11.e4 de4 12.Ng5 Ne5 13.Nce4 Ne4 14.Ne4; 9.Nc3 a6 10.Qf4 Nc6 11.Qd6 ed6 12.a3 Rfe8 13.e3 b5 14.Nd2; 9.Na3 Qb4 10.Rb1 Qa4 11.Nb5 Nbd7 12.Bh3 c5 13.Bd7 Nd7 14.Bg7; 9.Bc3 a6 10.Nbd2 Nc6 11.Qb2 Rfe8 12.Rfe1 e5 13.Qb3 Ng4 14.h3) 9...Nbd7 10.Ba3 Qe6 11.Nc3 c5 12.Qf4 h6 13.Bb2 d4 14.Nb1; G2) 8...Na6 9.a3 (9.b5 Nc5 10.Na3 a6 11.Be5 Ncd7 12.Bb2 ab5 13.Nb5 c6 14.Nbd4) 9...c5 10.Be5 cb4 11.Qb2 ba3 12.Na3 Nb8 13.Bc3 Nc6 14.Ne5; G3) 8...Re8 9.a3 (9.Na3 Nbd7 10.Ne5 Ne5 11.Be5 Qd7 12.Qb2 c6 13.c4 Bh6 14.f4; 9.c4 Na6 10.b5 Nc5 11.Nbd2 dc4 12.Qc4 Bd5 13.Qc2 a6 14.a4; 9.Qd2 a6 10.a4 Nbd7 11.a5 e5 12.Nh4 b5 13.c4 bc4 14.dc4; 9.Ne5 Qd6 10.c4 c6 11.c5 Qe6 12.Nd2 Nfd7 13.Nd7 Nd7 14.Bg7) 9...Nc6 10.b5 Na5 11.Ne5 a6 12.ba6 Ra6 13.Nc3 Nd7 14.Nd7; G4) 8...a6 9.c4 (9.Bc3 Nc6 10.Qb2 Re8 11.Nbd2 Qd6 12.e4 e5 13.ed5 Nd5 14.Ne4; 9.a3 Nc6 10.c4 e6 11.Nbd2 Qe7 12.Qc2 Rfd8 13.e3 Ra7 14.Rfe1) 9...Nc6 10.a3 e6 11.Nbd2 Qd7 12.Qc2 Rfe8 13.d4 Ng4 14.Rad1; H) 8.a3 H1) 8...Nc6 9.Nbd2 (9.Nc3 a6 10.d4 Qd6 11.Qd2 Rfe8 12.Qf4 Qf4 13.gf4 Rad8 14.Rfd1; 9.d4 Qd6 10.Nc3 a6 11.Qd2 Rfe8 12.Qf4 Nd8 13.Bh3 h5 14.Ne5; 9.Qd2 Qd7 10.a4 Rfd8 11.b5 Na5 12.Bc3 c5 13.Ba5 ba5 14.Qa5) 9...Qd7 10.c4 Ng4 11.Bg7 Kg7 12.Qc2 a6 13.cd5 Qd5 14.Qc3; H2) 8...Qd7 9.Nbd2 (9.Nc3 a6 10.d4 Nc6 11.Qd3 Ne4 12.Bc1 Rfe8 13.Be3 Nc3 14.Qc3; 9.d4 a5 10.Nc3 ab4 11.ab4 Nc6 12.b5 Nb4 13.Qd2 Ng4 14.h3; 9.c4 dc4 10.Ne5 Qc8 11.Bb7 Qb7 12.Nc4 Nc6 13.Nbd2 Rad8 14.Nf3) 9...Nc6 10.c4 a6 11.cd5 Nd5 12.Qc2 Bb2 13.Qb2 Rad8 14.Nc4; H3) 8...Qd6 9.Nc3 (9.Nbd2 Nbd7 10.c4 Ng4 11.Nd4 c6 12.h3 e5 13.hg4 ed4 14.cd5; 9.c4 dc4 10.dc4 Nc6 11.Qd6 cd6 12.Nc3 Ne4 13.Rfc1 a5 14.b5) 9...Nc6 10.Nb5 Qd7 11.Qd2 e5 12.c4 Rfe8 13.cd5 Nd5 14.Rac1; H4) 8...e6 9.Nbd2 (9.Nc3 a6 10.Re1 Nc6 11.d4 Ne7 12.Qd3 Nf5 13.Ne5 Qe7 14.Nd1; 9.Re1 Qe7 10.Nc3 a5 11.b5 Nbd7 12.d4 Rfd8 13.Qd3 Ne4 14.Nd2; 9.Qd2 a6 10.Nc3 Nc6 11.Nd1 Re8 12.Ne3 e5 13.c3 Bh6 14.a4; 9.Qc1 a6 10.Nbd2 Nc6 11.Nb3 Qd6 12.c4 Rfe8 13.Nbd4 Nd7 14.Nc6; 9.e3 Nbd7 10.Nbd2 Qe7 11.Qe2 c5 12.bc5 Nc5 13.a4 Rfd8 14.a5) 9...Nbd7 10.c4 Qe7 11.Qc2 Rfc8 12.b5 a6 13.a4 e5 14.cd5; H5) 8...a6 9.Nbd2 (9.c4 dc4 10.dc4 Nc6 11.Nc3 Qc8 12.Nd5 Rd8 13.Qb3 Qb8 14.Rad1) 9...Nc6 10.c4 Ng4 11.d4 e6 12.Qc2 Qd7 13.cd5 ed5 14.h3; H6) 8...Nbd7 9.Nbd2 (9.c4 c5 10.Nbd2 d4 11.Rb1 Qc7 12.Re1 e5 13.Ng5 Bg2 14.Kg2; 9.Qd2 c5 10.Nh4 Qb8 11.Nc3 d4 12.Ne4 Ne4 13.de4 Rd8 14.Rfd1; 9.Re1 c5 10.e3 e6 11.Nbd2 Qe7 12.c4 Ng4 13.Qb3 Rad8 14.Bg7; 9.e3 e6 10.Qe2 Qe7 11.Nbd2 a5 12.Bc3 Ne8 13.Bg7 Kg7 14.e4; 9.Nc3 e5 10.e3 Qe7 11.Qe2 a5 12.b5 Rad8 13.Rfe1 Rfe8 14.Rad1) 9...c5 10.c4 d4 11.Qc2 Qc7 12.Rae1 Qd6 13.Rb1 Rab8 14.Ng5; H7) 8...c5 9.Nbd2 (9.Nc3 Nc6 10.bc5 bc5 11.Rb1 Rb8 12.Na4 Qd6 13.c4 d4 14.Ba1; 9.bc5 bc5 10.Nbd2 Nc6 11.c4 d4 12.Rb1 Rb8 13.Qa4 Bh6 14.Bc1) 9...Nbd7 10.c4 d4 11.Qc2 Qc7 12.Rfe1 Rfd8 13.Rab1 Rab8 14.e3.

7.d3 e6 A) 8.e4 A1) 8...Qe7 9.e5 (9.Qc1 Nc6 10.b5 Na5 11.Nc3 Ng4 12.Ne2 Bb2 13.Qb2 a6 14.h3) 9...Ng4 10.h3 Nh6 11.Nbd2 Nc6 12.b5 Na5 13.Ne4 Be4 14.de4; A2) 8...Na6 9.e5 (9.a3 c5 10.e5 Ng4 11.h3 Bf3 12.Qf3 Ne5 13.Qa8 Qa8 14.Ba8) 9...Ng4 10.h3 Nh6 11.a3 c5 12.Nc3 cb4 13.Ne4 Nf5 14.Nf6; A3) 8...Nc6 9.e5 (9.b5 Ne7 10.e5 Nh5 11.Nbd2 a6 12.a4 f6 13.Ne4 f5 14.Nc3) 9...Nh5 10.Qd2 f5 11.b5 Ne7 12.Nc3 a6 13.a4 d6 14.ed6; B) 8.Nbd2 B1) 8...d5 9.c4 (9.Bc3 Nbd7 10.Qb1 e5 11.Ne5 Ng4 12.d4 Nde5 13.de5 Be5 14.Be5; 9.a3 Nbd7 10.c4 Qe7 11.Qc2 Rfc8 12.Rab1 c6 13.Bc3 e5 14.e3; 9.Qc1 Nbd7 10.Bc3 Ng4 11.Qb2 Bc3 12.Qc3 e5 13.h3 Ngf6 14.Ne5; 9.a4 a6 10.c4 Qe7 11.b5 ab5 12.ab5 Nbd7 13.Qc2 Qb4 14.Rfb1; 9.Rb1 Nc6 10.c4 a6 11.Qb3 Qe7 12.cd5 ed5 13.Rfe1 Qe6 14.Rbc1) 9...Qe7 10.a3 Nbd7 11.Qc2 Rfc8 12.Bc3 c5 13.bc5 dc4 14.Nc4; B2) 8...Nd5 9.Qc1 (9.Bg7 Kg7 10.Nc4 Nb4 11.Qd2 Bf3 12.Bf3 N8c6 13.c3 Nd5 14.e4) 9...Nc3 10.Re1 Nc6 11.Ne4 Ne4 12.de4 a6 13.Rd1 Qe7 14.Rb1; B3) 8...Nc6 9.b5 Ne7 10.Nc4 a6 11.a4 Nf5 12.Qd2 Bh6 13.e3 Nd5 14.Nfe5; B4) 8...a6 9.Nc4 (9.a3 Nc6 10.c4 Qe7 11.Qc2 Ra7 12.d4 d6 13.e4 Nd7 14.Rfe1; 9.c4 Nc6 10.a3 Ng4 11.Qc2 Bb2 12.Qb2 Qe7 13.h3 Nf6 14.Ne5) 9...Nc6 10.Qd2 Qe7 11.Rab1 b5 12.Nce5 Ne5 13.Ne5 Bg2 14.Kg2; B5) 8...Qe7 9.b5 (9.Rb1 d5 10.c4 a6 11.Qb3 Nbd7 12.cd5 ed5 13.Rbc1 c6 14.Nd4) 9...a6 10.a4 d6 11.Nc4 Nbd7 12.Qd2 Nc5 13.Nd4 d5 14.Ne5; B6) 8...Na6 9.c3 (9.a3 c5 10.c3 Qe7 11.Qb3 d5 12.d4 Nb8 13.dc5 bc5 14.c4) 9...c5 10.a3 Qe7 11.Nc4 d5 12.Nce5 Nd7 13.d4 Ne5 14.Ne5; C) 8.a3 C1) 8...a6 9.Nbd2 (9.c4 Nc6 10.Qc2 Qe7 11.Nbd2 Rab8 12.e3 Rfd8 13.Rfd1 d6 14.d4; 9.e4 Nc6 10.Nc3 d5 11.e5 Ng4 12.d4 Nh6 13.Ne2 Nf5 14.Qd3; 9.d4 Nc6 10.Qd3 d5 11.Nbd2 Qe7 12.c4 Rad8 13.c5 Ng4 14.h3; 9.Nc3 d5 10.d4 Nc6 11.Qd3 Ne4 12.Rfe1 f5 13.Rad1 Nd6 14.Nb1; 9.Re1 Nc6 10.c4 d5 11.Nbd2 Re8 12.Qc2 Qd7 13.Rac1 Re7 14.e4) 9...Nc6 10.c4 Qe7 11.Qc2 Ng4 12.h3 Nf6 13.Ne5 Rfe8 14.Bc6; C2) 8...d5 9.Nbd2 (9.Nc3 a6 10.d4 Nc6 11.Qd3 Ne4 12.Rfe1 f5 13.Rab1 Nd6 14.Bc1; 9.Qd2 a6 10.Re1 Nc6 11.Nc3 Qd6 12.d4 Rfe8 13.Rad1 Rad8 14.Qf4; 9.Re1 Nc6 10.Nc3 a6 11.Qd2 Qd6 12.d4 Rfe8 13.Rad1 Rad8 14.Qf4; 9.Qc1 Nc6 10.Nbd2 a6 11.Nb3 Qd6 12.c4 dc4 13.Qc4 Nd5 14.Bg7) 9...Nc6 10.c4 a6 11.Qc2 Qd7 12.d4 Rad8 13.Rac1 Rc8 14.Qd3; C3) 8...Qe7 9.Nc3 (9.c4 a5 10.b5 d6 11.Nc3 Nbd7 12.Nd4 Bg2 13.Kg2 e5 14.Nc6; 9.e4 a5 10.e5 Ng4 11.h3 Nh6 12.b5 d6 13.ed6 cd6 14.Bg7; 9.Nbd2 Nc6 10.Qc1 a6 11.c4 d5 12.Qc2 Rfd8 13.Rfe1 Ng4 14.cd5; 9.Qc1 c5 10.bc5 bc5 11.Nbd2 Nc6 12.Rb1 Rab8 13.Nc4 Ba6 14.Nfe5) 9...a5 10.b5 d5 11.Qd2 e5 12.Nd1 Nbd7 13.Ne3 Rfe8 14.Rfe1; C4) 8...Nc6 9.c4 (9.Nbd2 Qe7 10.c4 Rfd8 11.Qc2 a6 12.Ne5 Nh5 13.f4 a5 14.Bc3; 9.Nc3 a6 10.d4 d5 11.Qd3 Ne4 12.Rfe1 f5 13.Nb1 Qe7 14.Nbd2; 9.d4 d5 10.Qd3 Qe7 11.Nbd2 a6 12.c4 Rfd8 13.Rac1 Ne4 14.Rfd1; 9.e4 Ng4 10.Bg7 Kg7 11.Nc3 Nce5 12.Ne5 Ne5 13.f4 Nc6 14.d4; 9.Qc1 d5 10.Nbd2 a6 11.Nb3 Qd6 12.c4 dc4 13.Qc4 Nd5 14.Bg7) 9...Qe7 10.Qd2 d5 11.cd5 ed5 12.Nc3 a6 13.e3 Rfe8 14.Ne2; D) 8.Qc1 D1) 8...a6 9.a3 (9.Bc3 Nc6 10.Qb2 d6 11.Nbd2 e5 12.e4 b5 13.a4 Qd7 14.Ra2; 9.Nbd2 Nc6 10.Bc3 Ng4 11.Bg7 Kg7 12.Qb2 Nf6 13.Ne5 d5 14.Nc6; 9.Nc3 Nc6 10.a3 d5 11.Na4 Qd7 12.c4 d4 13.Qc2 Ng4 14.h3; 9.c4 Nc6 10.a3 d5 11.Nc3 Qd6 12.Na4 Qe7 13.Qc2 Rfd8 14.Rfd1) 9...Nc6 10.Nbd2 d5 11.Nb3 Qd6 12.c4 Rfe8 13.c5 Qe7 14.Ne5; D2) 8...d5 9.Bc3 (9.Nbd2 Nbd7 10.Bc3 Qe7 11.Qb2 Rac8 12.Ne5 Ne5 13.Be5 Nh5 14.Bg7; 9.Na3 Qe7 10.Bc3 a6 11.Qb2 Nc6 12.Ne5 b5 13.Rab1 Rfb8 14.Bf3; 9.Nc3 a6 10.a3 Nc6 11.Na4 Qe7 12.Qg5 h6 13.Qd2 e5 14.h3; 9.a3 Nc6 10.b5 Ne7 11.Be5 Nf5 12.Nc3 d4 13.Nd4 Bg2 14.Nf5; 9.b5 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.Bb2 Nc5 14.Bd4) 9...Nbd7 10.Nbd2 Ng4 11.Qb2 Bc3 12.Qc3 e5 13.h3 Ngf6 14.Ne5; D3) 8...Na6 9.a3 (9.c3 c5 10.a3 Rc8 11.b5 Nb8 12.Nbd2 d5 13.Qc2 Nbd7 14.a4) 9...c5 10.b5 Nc7 11.Nc3 d6 12.a4 Ncd5 13.Ng5 Qc7 14.Qd2; E) 8.c4 E1) 8...Nc6 9.b5 Ne7 10.Nc3 a6 11.a4 d5 12.cd5 ed5 13.Ne5 Nd7 14.Ng4; E2) 8...Qe7 9.Qd2 (9.b5 a6 10.Nc3 ab5 11.cb5 d5 12.Qb3 Nbd7 13.d4 Rfc8 14.Rac1; 9.Qb3 Nc6 10.b5 Na5 11.Qa3 Qa3 12.Na3 Ng4 13.Nd4 c5 14.bc6) 9...a6 10.a3 Nc6 11.Nc3 d5 12.cd5 ed5 13.e3 Rad8 14.Ne2; E3) 8...c5 9.bc5 (9.Qd2 cb4 10.Qb4 Nc6 11.Qd2 Rc8 12.Nc3 d5 13.cd5 Nd5 14.Rac1; 9.Qb3 cb4 10.Qb4 Na6 11.Qa3 Nc5 12.Nc3 Rc8 13.Rab1 Ng4 14.Nb5; 9.b5 d5 10.e3 Qd6 11.Nc3 Nbd7 12.Re1 a6 13.e4 d4 14.ba6; 9.Qa4 Nc6 10.b5 Ne7 11.Nc3 Qc7 12.Rfe1 Nf5 13.e4 Nd4 14.Qd1; 9.Bc3 cb4 10.Bb4 d6 11.Bc3 Nbd7 12.Nbd2 Nc5 13.Qc2 Qd7 14.Rab1) 9...bc5 10.Nc3 Nc6 11.Rb1 Rb8 12.Qa4 d6 13.Ne4 Ne4 14.Bg7; E4) 8...a6 9.Qc2 (9.Nc3 Nc6 10.a3 d5 11.Qb3 d4 12.Ne4 Ne4 13.de4 e5 14.Rfc1; 9.a3 Nc6 10.Qc2 Qe7 11.Nbd2 Ng4 12.d4 d6 13.e4 Rfe8 14.h3; 9.Qd2 Nc6 10.b5 ab5 11.cb5 Ne7 12.Nc3 c5 13.bc6 dc6 14.a4; 9.Qb3 Nc6 10.Nbd2 Qe7 11.a3 d5 12.cd5 ed5 13.Rfe1 Rad8 14.Rac1; 9.Nbd2 Nc6 10.Qb3 Qe7 11.a3 Ng4 12.d4 d5 13.Qc2 Rfd8 14.Rfd1) 9...Nc6 10.a3 d5 11.Nbd2 Qd7 12.Rac1 Rac8 13.cd5 ed5 14.e4.

7.d4 c5 8.dc5 bc5 9.b5 d5 10.Nbd2 Nbd7 11.Ne5 Ne5 12.Be5 Qd7 13.Rb1 Rfd8 14.Nb3 Rac8 15.Na5 Ba8 16.c4 Qe6 17.Bf6 Bf6 18.Qc2 Qb6 19.Qa4 e6 20.Rfd1 Kg7 21.cd5 ed5 22.Nc6 Bc6 23.bc6 Qc6 24.Qc6 Rc6 25.Rd5 Rc7 26.Rd8 Bd8 27.Bd5 c4 28.Rc1 c3 29.f4 f5 30.Kf1 Be7 31.e3 Bb4 32.Bb3 Ba3 33.Rc2 Bb2 34.Ke2 Rd7 35.Bc4 Kf6 36.h3 h5 37.h4 Rd6 38.Bb3 Ke7 39.Bc4 Kd7 40.Bd3 Ke6 41.Bc4 ½–½. Nikolac – Golubovic, Tucepi 1996.

8.a3 A) 8...Nc6 9.c4 (9.Qd2 a6 10.c4 d5 11.cd5 Qd5 12.Nc3 Qd7 13.Rad1 Rfd8 14.d4; 9.Nc3 a6 10.e4 e5 11.Qd2 Qd7 12.Rfe1 Rfe8 13.Nd5 Nd5 14.ed5; 9.d4 d5 10.Nbd2 Ne4 11.e3 Nd6 12.Qe2 Qd7 13.c4 dc4 14.Nc4) 9...d5 10.Nbd2 a6 11.cd5 Nd5 12.Qc2 Bb2 13.Qb2 e6 14.e4; B) 8...Qd7 9.Nc3 (9.Qd2 c5 10.bc5 bc5 11.Nc3 Nc6 12.Rab1 Nd4 13.e4 Rab8 14.Nd4; 9.Ne5 Qc8 10.Nf3 Nc6 11.Nc3 a6 12.e4 e5 13.Nd5 Nd5 14.ed5) 9...Nc6 10.Re1 a6 11.d4 d5 12.Qd3 Qf5 13.e4 de4 14.Ne4; C) 8...c5 9.Nc3 (9.bc5 bc5 10.Nbd2 Nc6 11.Rb1 Rb8 12.c4 Qd7 13.Qc2 Ng4 14.Bg7; 9.Nbd2 Nbd7 10.Ng5 Qc7 11.Bb7 Qb7 12.c4 h6 13.Ngf3 Ng4 14.Bg7; 9.Qd2 Qd7 10.bc5 bc5 11.Bf6 Bf6 12.Nc3 Nc6 13.Rab1 Rab8 14.Nd5; 9.c4 Nc6 10.b5 Na5 11.Qc2 Qd7 12.Nc3 Rab8 13.Ng5 Qf5 14.Bb7) 9...Nc6 10.bc5 bc5 11.Rb1 Rb8 12.e4 Qd7 13.Nd5 Nd4 14.Ne3; D) 8...a6 9.c4 (9.d4 d5 10.Nbd2 Qd6 11.c4 Nbd7 12.cd5 Bd5 13.Qc2 Rfc8 14.e4; 9.Nc3 d5 10.d4 Nc6 11.Qd3 Qd7 12.Rad1 Rad8 13.Bc1 Rfe8 14.Rfe1; 9.Re1 Nc6 10.d4 Qd7 11.e4 e5 12.d5 Ne7 13.Nc3 Rad8 14.Qe2; 9.e4 Nc6 10.Nc3 e5 11.Qd2 Qd7 12.Nd1 a5 13.b5 Nd8 14.a4) 9...Nc6 10.Nc3 d5 11.Qb3 e6 12.d4 Re8 13.Rfd1 Qd6 14.e3; E) 8...Qc8 9.Qd2 (9.Nc3 c5 10.d4 cd4 11.Qd4 Nc6 12.Qh4 Ne5 13.Ne5 de5 14.Rad1; 9.Qc1 Nc6 10.Nc3 a6 11.Qg5 h6 12.Qd2 d5 13.d4 Qg4 14.Qd3; 9.c4 c5 10.Nc3 Nc6 11.bc5 bc5 12.Qd2 Qd7 13.Nd5 Rab8 14.Nf6; 9.d4 c5 10.Nc3 cd4 11.Qd4 Nc6 12.Qh4 Ng4 13.h3 Nge5 14.Rfd1; 9.e4 c5 10.bc5 Qc5 11.Nc3 Nc6 12.d4 Qa5 13.Re1 Rac8 14.e5) 9...c5 10.c4 Nc6 11.bc5 bc5 12.Nc3 Rb8 13.Nd5 Qd7 14.Nf6; F) 8...d5 9.Nbd2 (9.c4 Nc6 10.Nc3 dc4 11.dc4 Qd1 12.Rad1 Ne4 13.Ne4 Bb2 14.Rd7; 9.e3 Qd6 10.Nc3 a6 11.e4 de4 12.Ng5 Nc6 13.Nce4 Ne4 14.Ne4; 9.Nc3 a6 10.d4 Nc6 11.Qd3 Qd7 12.Rfe1 Qf5 13.e4 Ne4 14.Ne4; 9.Re1 Nc6 10.Nc3 a6 11.d4 Re8 12.Qd3 Qd7 13.Rad1 Rad8 14.Ne5) 9...Nc6 10.b5 Na5 11.Nb3 Nb3 12.cb3 a6 13.a4 ab5 14.ab5.

8.Nc3 A) 8...Na6 9.b5 (9.a3 c5 10.b5 Nc7 11.Qd2 Nfd5 12.a4 Ne6 13.Nd5 Bb2 14.Ra2) 9...Nc5 10.d4 Ne6 11.Qd3 Qd7 12.Ne5 de5 13.Bb7 ed4 14.Ne4; B) 8...c5 9.bc5 (9.b5 d5 10.e3 Nbd7 11.Qe2 Qc7 12.Ng5 d4 13.ed4 cd4 14.Nce4; 9.a3 Na6 10.b5 Nc7 11.Qd2 Ne6 12.a4 Qc7 13.Ng5 Bg2 14.Ne6) 9...bc5 10.Rb1 Nc6 11.Ne4 Rb8 12.Nf6 Bf6 13.Bf6 ef6 14.Qd2; C) 8...d5 9.Qc1 (9.Re1 a6 10.a3 Nc6 11.d4 Qd6 12.Qd2 Rae8 13.Rad1 Rd8 14.Qe3; 9.a3 a6 10.d4 Nc6 11.Qd3 Qd7 12.Rfe1 Qf5 13.Nh4 Qd3 14.ed3; 9.b5 c5 10.e3 Nbd7 11.Qe2 Qc7 12.Rad1 e5 13.Ng5 h6 14.Nh3; 9.Ng5 a6 10.a4 Nc6 11.b5 Nb4 12.ba6 Ra6 13.Nb5 Nc6 14.Qd2; 9.Qd2 a6 10.a3 Nc6 11.d4 Ne4 12.Qd3 Qd7 13.Bc1 Rfe8 14.Be3) 9...a6 10.e4 Nc6 11.Nd5 Nd5 12.ed5 Qd5 13.Re1 Qd6 14.a3; D) 8...Nc6 9.b5 (9.a3 a6 10.d4 d5 11.Qd3 Re8 12.Rad1 Qd7 13.Ne5 Qe6 14.e4) 9...Na5 10.e4 a6 11.a4 Re8 12.Qd2 Qd7 13.Ng5 Ng4 14.h3; E) 8...a6 9.a4 (9.Re1 Nc6 10.a3 Qd7 11.d4 d5 12.Qd3 Qf5 13.Nh4 Qd3 14.ed3; 9.a3 Nc6 10.d4 d5 11.Qd3 Qd7 12.Rad1 Rad8 13.Bc1 Rfe8 14.Rfe1; 9.e4 Nc6 10.a3 e5 11.Qd2 Qd7 12.Nd1 a5 13.b5 Nd8 14.a4) 9...Nc6 10.b5 Nb4 11.Qd2 a5 12.Na2 Ne4 13.de4 Bb2 14.Rab1.

8.c4 A) 8...Nbd7 9.Nc3 (9.a3 a5 10.Nc3 ab4 11.ab4 Ra1 12.Qa1 Qa8 13.Rd1 c5 14.bc5; 9.Qc2 a5 10.b5 Nc5 11.Nc3 e5 12.Ng5 Bg2 13.Kg2 Qd7 14.Rad1; 9.Nbd2 a5 10.b5 Nc5 11.Qc2 e5 12.Ng5 Bg2 13.Kg2 Re8 14.Nge4) 9...a5 10.b5 e5 11.Ba3 Qe7 12.Nd2 Bg2 13.Kg2 Qe6 14.Qc2; B) 8...c5 9.bc5 (9.Qb3 cb4 10.Qb4 Na6 11.Qd2 Nc5 12.Nc3 Qd7 13.Ng5 h6 14.Bb7; 9.Qa4 Na6 10.a3 Nc7 11.bc5 bc5 12.Nc3 Qd7 13.Qd7 Nd7 14.Rab1; 9.Qd2 cb4 10.Qb4 Na6 11.Qd2 Nc5 12.Nc3 Qd7 13.Ng5 h6 14.Bb7) 9...bc5 10.Nc3 Nc6 11.Rb1 Qd7 12.Qa4 Rfd8 13.Ba1 Rab8 14.Ng5; C) 8...a5 9.b5 Nbd7 10.Nc3 e5 11.Qd2 Nc5 12.Ba3 e4 13.Ng5 ed3 14.ed3.

8.Nbd2 A) 8...Na6 9.Qb1 (9.c3 c5 10.Qb3 cb4 11.cb4 Qd7 12.Nd4 Bg2 13.Kg2 Nh5 14.Rac1; 9.a3 c5 10.Qb1 Qd7 11.Nc4 Rab8 12.e4 Nc7 13.e5 Ng4 14.ed6; 9.Rb1 Nd5 10.b5 Nc5 11.c4 Nf6 12.d4 Ne6 13.Nb3 a6 14.d5) 9...c5 10.a3 Qd7 11.Nc4 Rac8 12.e4 b5 13.Na5 Ba8 14.Re1; B) 8...Nc6 9.b5 Na5 10.Nb3 Qd7 11.Na5 ba5 12.c4 Ng4 13.Bg7 Kg7 14.Qc2; C) 8...Nd5 9.Nd4 (9.Bg7 Kg7 10.Qc1 Nd7 11.Qb2 e5 12.e4 N5f6 13.Nc4 Rb8 14.a4) 9...e5 10.c4 ed4 11.cd5 Nd7 12.Nb3 Nf6 13.Nd4 Bd5 14.e4; D) 8...a5 9.b5 (9.a3 ab4 10.ab4 Nc6 11.b5 Na5 12.Bh3 h5 13.Qb1 e5 14.e4) 9...Nbd7 10.d4 Re8 11.Rb1 a4 12.Nc4 e6 13.Re1 Bd5 14.Qd3; E) 8...Nbd7 9.Nc4 (9.a3 c5 10.Ng5 Bg2 11.Kg2 Qc7 12.c4 Ng4 13.Bg7 Kg7 14.Qb3; 9.Nb3 c5 10.bc5 dc5 11.Rb1 Qc7 12.Qe1 Rfe8 13.Qc3 b5 14.Qa5; 9.c4 a5 10.b5 Nc5 11.Qc2 a4 12.Ng5 Bg2 13.Kg2 Qd7 14.d4; 9.Ng5 Bg2 10.Kg2 c5 11.a3 Qc7 12.c4 Ng4 13.Bg7 Kg7 14.Qb3; 9.Nd4 Bg2 10.Kg2 Ne5 11.N2f3 Nf3 12.Nf3 Qd7 13.c4 Nh5 14.Bg7) 9...c5 10.Qd2 Qc7 11.Rab1 Bd5 12.bc5 Nc5 13.Ng5 Bg2 14.Kg2.

8.e4 Nbd7 (8...Na6 9.Bc3 (9.Qe1 Qd7 10.Na3 Qa4 11.c3 c5 12.b5 Nc7 13.Qd1 Qd1 14.Rfd1; 9.a3 c5 10.b5 Nc7 11.Nc3 a6 12.ba6 Ra6 13.a4 Qd7 14.Qd2) 9...Qd7 10.Nbd2 c5 11.bc5 Nc5 12.Nb3 Na4 13.Bb4 Rac8 14.c4) 9.Nbd2 (9.a3 c5 10.Nc3 a5 11.bc5 Nc5 12.Bh3 Nfd7 13.a4 Rc8 14.Ra3; 9.Nc3 a5 10.a3 c5 11.bc5 Nc5 12.e5 Nd5 13.Nd5 Bd5 14.c4; 9.Qe2 a5 10.b5 Nc5 11.Nc3 a4 12.Rab1 e5 13.Ba3 Re8 14.Rfd1; 9.Na3 a5 10.b5 Nc5 11.Rb1 d5 12.e5 Ng4 13.d4 Ne4 14.Nd2; 9.Re1 a5 10.b5 Nc5 11.Nc3 a4 12.Ba3 Qd7 13.Qd2 Rfe8 14.e5) 9...Re8 (9...c5 10.bc5 Nc5 11.Nb3 Na4 12.Ba3 Qd7 13.Qd2 Ng4 14.Nbd4) 10.Re1 (10.Nc4 c5 11.a3 Qc7 12.Qe2 d5 13.ed5 Nd5 14.Bg7) 10...Ne4 (10...a5 11.ba5 (11.b5 Nc5 12.Rb1 Qd7 13.Nc4 e5 14.Ba3) 11...Ra5 12.d4= (12.Nc4 Rc5 13.Nfd2 e5 14.Nb3) 12...e5 13.a4 ed4 14.Nd4) 11.Bg7 (11.Nd4!? c5 12.Ne4 (12.bc5 dc5 13.Be4 Be4 14.Ne6) 12...Bd4 13.Bd4 (13.Rb1 Qc7 14.bc5) 13...cd4 14.c4–/+ (14.Nd6 Bg2 15.Ne8–/+)) 11...Nd2+= 12.Bc3 (12.Qd2 Kg7 13.d4 (13.a4 a5 14.b5) 13...e6+= (13...Nf6 14.Qd3) 14.Qd3) 12...Nf3 13.Bf3 Bf3 (13...Qc8 14.a4) 14.Qf3 c5 15.b5 Nf8 16.a4 Qd7 17.h4 (17.a5 Rab8 (worse is 17...Qb5 18.ab6 Qd7 19.b7+=) 18.Reb1 e5+=) 17...e5 18.Qd5 Rad8 19.a5 Ne6 20.Reb1 Re7 21.Qf3 (21.ab6 ab6 22.Qc6 Qc7–/+) 21...Nd4 22.Bd4 cd4 23.ab6 ab6 24.Ra6 Rb8 25.h5 Kg7 (25...d5 26.hg6 fg6 27.Qf6–/+) 26.Ra4 (26.Kg2 Re6–/+) 26...Rc8 27.c4 (27.Ra6–/+) 27...Qf5 (27...dc3 28.h6 Kf8 29.Rc4–/+) 28.Qd5? (better is 28.Qf5 gf5 29.Rba1–/+) 28...Qd3–+ 29.Rba1 (29.Rc1 Rd7–+) 29...Qf5 (29...gh5 30.Qd6 Re6 31.Qd5–+) 30.Qd6 Qe6 31.Qb4 (31.Qe6 Re6 32.hg6 Kg6–+) 31...e4 (31...Rec7 32.Rc1–+) 32.h6 Kh6 (32...Kg8!?–+) 33.Qd2–/+ e3 34.Qd4 ef2 35.Qf2 (better is 35.Kf2!? f6 36.Ra7–/+) 35...Rc4–+ 36.Rc4 Qc4 37.Qb6?? (37.Qf4 Qf4 38.gf4–+) 37...Qc3 38.Qa5 Qg3 39.Kf1 Qf3 40.Kg1 Re2 (40...Re2 41.Qd2 Rd2 42.b6 Qg2#) 0–1. Cempel,Jaroslav (2275) – Suran,Jan (2260), Czech Extra League, 2000.

4.Na3 Bg7 5.Bb2 0-0 6.Rb1 d5 7.Bg2 Nbd7 8.c4 Re8 9.0-0 a5 10.b5 cb5 11.Nb5 dc4 12.Qc1 Nb6 13.Be5 Nfd5 14.e4 Be5 15.Ne5 Nb4 16.a3 Na6 17.Qc3 a4 18.f4 Bd7 19.Nd4 Nc5 20.f5 Rf8 21.Ng4 f6 22.Ne3 Nb3 23.Ne2 Rc8 24.h4 Be8 25.Nd5 Bf7 26.fg6 hg6 27.Nef4 Nd5 28.ed5 Qb6 29.Kh1 Kg7 30.Bh3=+ Qd6 31.Be6 Nc5 32.Bf7= Kf7 33.Qc4 Rg8 34.Rfe1 g5=+ 35.hg5 Rg5 ½–½. Nannelli,P (2215) – Pegoraro,N (2060), Open, Porto San Giorgio ITA, 2000.

4.Na3 Bg7 5.Bg2 Na6 6.Rb1 0-0 7.0-0 d5 8.c4 Bf5 9.d3 Qd7 10.b5 cb5 11.Rb5 Rad8 (11...Rac8!?=) 12.Bb2+= Be6 13.Ne5 Qc8 14.Qa1 Bh6 (14...Nc7 15.Rb3+=) 15.e3 Nc7 16.Rb3 (16.Ra5 a6+=) 16...Nfe8 17.Rc1 f6 18.Nf3 Qa8 19.Nd4 Bf7 20.Nab5 e5 21.Ne2 (21.Nc7 Nc7 22.Ne2 Rfe8+=) 21...Nb5= 22.Rb5 (< 22.cb5 d4 23.Ra3 de3=+) 22...Nc7 23.Rc5 Na6 24.Rb5 (24.Rd5 Bd5 25.Bd5 Kg7+/–) 24...Nc7+= 25.Rb3 Rfe8 26.Nc3 a6 (26...Bg7 27.Qb1=) 27.a4 Bg7 28.Rb6 f5 (28...dc4!? 29.dc4 Bc4+=) 29.cd5+/– Nd5 30.Nd5 Bd5 31.Bd5 Rd5 32.Qa2 Qd8 33.Rb7 Kh8 34.Rcc7 Rg8 35.Qc4 Rd3 36.Rg7! Rd1 37.Kg2 Rg7 38.Be5 Rdd7 39.Rb8 Qb8 40.Bb8 h5 41.Be5 Kh7 42.Bg7 (42.Bg7 Kg7 43.Qa6+–) 1–0. Smyslov,Vassily – Borisenko,G, URS, 1964.

4.a4 Bg7=+ 5.Na3 d5 6.Bg2 0-0 7.0-0 Qd6 8.c3 (8.Rb1 Bg4=) 8...e5 (8...Ne4 9.Rb1=+) 9.a5 (9.d4 ed4 10.Bf4 Qe7 11.Nd4 Re8=+) 9...Bf5 10.Nc2 Re8 11.d3 (11.Ne3 Bd7=) 11...Qd7 12.Re1 Na6 13.Nd2 (13.Bg5 e4 14.Nfd4 Bh3=+) 13...e4=+ 14.Nb3 Bh3 15.Bf4 Bg2 16.Kg2 Nc7 (16...Nh5 17.Bd2=+) 17.Qd2 (17.Ncd4 ed3 18.ed3 Re1 19.Qe1 Re8=) 17...Nb5 (17...Ne6 18.Be5=) 18.c4 (18.Nc5 Qe7=) 18...Nc7 (18...dc4 19.dc4 Qd2 20.Nd2=) 19.Nc5= Qc8 20.Rad1 Ne6 21.Ne6 Qe6 22.Nd4 Qe7 23.a6 Rad8 24.ab7 Qb7=+ 25.c5 Nh5 26.Be3 f5 27.de4 Re4 28.f3 Ree8 29.Bf2 Bf6 30.b5 cb5=+ 31.c6 Qc7 32.Qa2 Bd4–/+ 33.Bd4 Qc6 34.Qa7 Ra8 35.Qc5 Qc5 36.Bc5 Red8 37.Rb1 Rab8 38.Rb4 Rdc8 39.Bf2 Rc4 40.Rb3 Nf6 41.Reb1 b4 ½–½. Bronstein,David – Doroshkievich,Vladimir K, Ch URS, Tbilisi (Georgia), 1967.

4.Bb2 Qb6 5.a3 d6 6.Nc3 a5 7.Na4 Qc7 8.c4 b5 (8...Bg7!?=) 9.cb5+= cb5 (9...ab4!? 10.ab4 cb5+=) 10.Rc1+/– Nc6 11.Nc3 (11.Nd4 Bd7 12.Bg2+– (12.Nb5?! Qb8 13.e3 ab4+=)) 11...ab4 12.Nb5 Qd7 (12...Qb8 13.e4 (13.Rc6?! Qb5 14.Qc2 Bb7+=) 13...Bb7 14.Bf6 ef6 15.ab4+/–) 13.ab4 (13.Bh3! Qb7 14.Nd6 ed6 15.Bc8 Rc8 16.Bf6+–) 13...Bg7+/– 14.Bg2 0-0 15.Qb3 Rb8 16.Nfd4 Nd4 17.Nd4 Bb7 18.Bc6 Bc6 19.Nc6 (19.Rc6? e5–+) 19...Qb7 20.0-0 Rbc8 21.b5 Ne8? (better is 21...Rc7+/–) 22.Ne7!+– (22.Ne7 Qe7 23.Rc8 Bb2 24.Qb2+–) 1–0. Nowarra – Tragsdorf, DDR, 1969. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6)

4.Bb2 Qb6 5.a3 Bg7 6.c4 d6 7.Nc3 0-0 8.Bg2 a5 (8...e5 9.0-0 e4 10.Ne1 Re8 11.d3 e3 12.Na4 Qa6=) 9.Na4 (9.c5 Qd8 10.0-0 Bf5 11.d3 Na6 12.cd6 ab4=) 9...Qc7 (9...Qa6 10.d3 b5 11.cb5 cb5 12.Nc3 Bb7=) 10.b5 Bd7 (10...e5 11.0-0 Nbd7 12.d4 Re8=) 11.Rc1 Be8 (11...e5 12.0-0= Re8=) 12.0-0+= (12.Qb3 e5+=) 12...Nbd7 (12...Bd7+=) 13.d3 Rc8 (13...Nb6 14.Rb1+=) 14.Qd2 c5 15.Nh4 b6 16.f4 Nh5 (16...Nb8 17.Nc3+=) 17.g4 Bb2 18.Qb2 Ng7 19.Rf3 (19.Nc3 f6+/–) 19...Nf6 (19...e5 20.Nc3+=) 20.g5 Nfh5 21.Bh3 Rb8 22.Nc3 Bd7 23.Nd5 (23.f5 Bf5 24.Bf5 Nf5+=) 23...Qd8= 24.Bd7 Qd7 25.Rcf1 Ne6 (25...e6 26.Nc3=) 26.R3f2 Nc7 27.Nc7 Qc7 28.f5 Ng7 29.e4 Qd7 30.Ng2 e5 (30...gf5 31.ef5 d5 32.Ne3 dc4 33.dc4+/–) 31.Ne3+/– Qd8 32.Rg2 Nh5 33.Nd5 Kh8 34.Rf3 Kg8 35.Rh3 Kg7 36.Qe2 Kh8? (better is 36...Rb7+–) 37.Rh5 gh5 38.Qh5 Kg7 1–0. Lupu (2440) – Kereszturi (2170), Budapest, 1990. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6)

4.c3 a5 5.ba5 Qa5 6.Bg2 Bg7 7.0-0 0-0 8.Bb2 d5 9.d3 Nbd7 10.Nbd2 e5 11.e3 e4 12.de4 de4 13.Nd4 c5 (13...Re8 14.Qb1=+) 14.N4b3= Qa4 15.c4 Re8 16.Bf6 Nf6 17.Nc5 Qc6 (17...Qa3 18.Ncb3=) 18.Ncb3+= Bg4 19.Qb1 Be2 20.Nd4 Qd7 21.Ne2 Qd2 22.Nd4 Ng4 23.Qd1 Qd1+= 24.Rfd1 f5 25.Rd2 Ne5 26.Rc2 Rec8 27.Rac1 Bf6 28.Ne6 Ra4 29.Bf1 Nf3 30.Kg2+= Rc6 31.Nf4 b6 32.Nd5 Kg7 33.Nf6 Kf6+= 34.Rd1 Ne5 35.Rdc1 Ng4 36.Kh3 h6 37.Kg2 Rd6 38.Rb2 Ne5 39.Rc3 Nd7 40.Rc1 Ne5 41.Rc3 Nd7 42.Kh3 Nc5= 43.Bg2 Nd3=+ 44.Re2 Ne5 45.Rec2 g5 46.c5? bc5–/+ 47.a3 g4 48.Kh4 Ra7 49.Rc5 h5 50.Rc7 Rc7 51.Rc7 Rd2 52.Rb7 Rf2 53.Rb6 Kg7 54.Be4 Rh2 55.Kg5 Nf7 56.Kf5 Rf2 57.Bf3 Rf3 58.Ke4 Rg3 (58...Rg3 59.a4 Rg1–+) 0–1. SSEChess 2.02 – AnMon 5.09, Boissel, BB–17, K6–2, 2000.

4.c4 a5 5.b5 Bg7 6.Bb2 0-0 7.Bg2 d5 8.bc6 Nc6 9.Na3 Be6 10.Ng5 Qd7 11.Ne6 fe6 12.0-0 Rfd8 13.Bh3 Rab8 14.Qb3 dc4 15.Nc4 a4 16.Qe3 Kf7 17.Be5 b5 18.Bb8 bc4 19.Bf4 Nd5 20.Qe4 Ba1 21.Ra1 c3 22.Qa4 c2 23.Qc2 Nf4 24.gf4 Nb4 25.Qe4 Qd2 26.Be6 Kf8 27.a3 Nc2 28.Ra2 Qc1 29.Kg2 Na3 30.Qe5 1–0. Michalek,C – Schoenfeld,S, GER–chJ, 1991. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6)

4.c4 a5 5.b5 Bg7 6.Bb2 Qb6 7.Nc3 0-0 8.Rb1 cb5 9.cb5 d6 10.Bg2 Nbd7 11.Na4 Qd8 12.0-0 Nb6 13.d3 Be6 14.Nb6 Qb6 15.Bd4 Qd8 16.Qa4 h6 17.Rfc1 Qd7 18.Nd2 Rfc8 19.Nc4 Bc4 20.Rc4 Rc4 21.Qc4 d5 22.Qc3 Qe6 23.Bf3 g5 24.e3 Rc8 25.Qa5 Qf5 26.Be2 Rc2 27.Qe1 Ra2 28.Ra1 Ra1 29.Qa1 Qd7 30.b6 Ne8 31.Bg7 Ng7 32.Qa8 Kh7 33.d4 Ne8 34.Qa5 Nf6 35.Qc5 Kg7 36.Bd3 Qe6 37.Qc7 Nd7 38.Qb7 Nb6 39.Qc7 Nd7 40.h4 gh4 41.Qf4 Nf6 42.Bf5 Qa6 43.Qh4 e6 44.Bh3 Qa1 45.Bf1 Ne4 46.Kg2 Qd1 47.Qf4 Qh5 48.Bb5 Ng5 49.Bf1 Qd1 50.Qe5 Kg8 51.Qf6 Qh5 52.Bb5 Qh3 53.Kg1 Qh5 54.Kg2 Qh3 55.Kg1 Qh5 ½–½. Ricardi – Needleman, Buenos Aires 1998.

4.c4 d5 5.Na3 Bg7 6.Bb2 Qb6 7.Qb3 Na6 8.b5 (better is 8.Rb1!?=) 8...Nc5–/+ 9.Qc2 Bf5 10.d3 cb5 11.cd5 Rc8 12.Qd1? (better is 12.Qd2!?+=) 12...Ng4 13.d4? (better is 13.Qd2 Nd3! 14.ed3–+) 13...Ne4 14.e3 (14.Bg2 Ngf2 15.Qb3 Qa5 16.Kf1 Nh1 17.Bh1 b4–+) 14...a6 (better is 14...Qa5 15.Nd2 Ngf2–+) 15.Rc1 0-0 (15...0-0 16.Rc8 Rc8–+ (16...Bc8?! 17.Qb3–+)) 0–1. Goettmann,Holger (1890) – Lisanti,Andre (2330), Rheinhessen–ch M1, 1997. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6)

4.Bg2 a5 5.ba5 Ra5 6.0-0 Bg7 7.d4 0-0 8.Bd2 (8.Nc3 d5=) 8...Ra6 9.Nc3 d5 10.Qc1 (10.Bf4 Nbd7=) 10...Ne4 11.Ne4 de4 12.Ng5 Qd4 13.c3 Qc4 14.Ne4 (14.Be4 Ra2 15.Bd3 Qa4+=) 14...Bf5 15.Ng5 h6 (15...Rd8 16.Rd1 h6 17.e4=) 16.Nf3 Kh7 (16...g5 17.h4=) 17.Re1 (17.Nd4 Bg4+=) 17...e5 (17...Be4 18.Qb2+=) 18.e4 Be6 (18...Be4 19.Re4 Qe4 20.Qb1) 19.Bf1+= Qa4 20.Ba6 Na6 21.Qb2 Nc5 (21...Bg4 22.Nh4+=) 22.Qb4+= b6 (22...Qb4 23.cb4 Na4 24.Be3+=) 23.Be3 Qb4 24.cb4 Ne4 (24...Nd3 25.Reb1 f5 26.Bb6 fe4 27.Nd2+/–) 25.Bb6 Nf2?? (better is 25...Rb8 26.Re4 Rb6 27.Ne5 Bd5+/–) 26.Kf2 (26.Bf2 e4 27.Nd4 Ra8+–) 26...e4 27.Nd4 Bd5 1–0. Scharff,Klaus – Raabe,Joachim (2085), Leverkusen op, 2001. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6)

4.Bg2 a5 5.ba5 Bg7 6.Bb2 Qa5 7.0-0 0-0 8.d3 d5 9.Nbd2 Re8 10.c4 Nbd7 11.cd5 Nd5 12.Nc4 Qa4 13.Qd2 Bb2 14.Qb2 Qa7 15.Nfe5 Ne5 16.Ne5 Qa3 17.Qd4 (17.Rfb1 Nc3 18.Nc4 Qb2 19.Rb2 Nb5=) 17...Ra4 (17...Qc3!? 18.Qc3 Nc3=+) 18.Nc4= Qc3 19.Qh4 (19.Qc5 Be6=) 19...Be6 20.Rfc1 Qf6 (better is 20...Qg7!? 21.Qg5 Nc3=+) 21.Qf6= Nf6 22.Rab1 Bc4 23.dc4 Ra7= 24.Rb2 Rea8 25.a4 Ra4 26.Rb7 Ra1 27.Rbb1 Rb1 28.Rb1 Ra4 29.Bc6 Rc4 30.Bf3 Kg7 31.Rb7 e6 32.Kg2 e5 33.e3 e4 34.Bd1 Rc8 35.Bb3 Rf8 36.h3 Kg8 37.g4 g5 38.Kg3 h6 39.f4 ef3 40.Kf3 Kg7 41.e4+– Kg6 42.e5 Nh7 43.Ke4 (43.Ke4 Kg7 44.e6+–) 1–0. snowshinethedog – Letsplay!, ChessWorld.net, 2006.

4.Bg2 Bg7 5.0-0 Nd5 6.Nc3 Nc3 7.dc3 Bc3 8.Rb1 b6 9.Rb3 Bg7 10.Bb2 Bb2 (10...Bb2 11.Rb2 0-0=). Ozdemir,Yasin – Lykhomano,Romano, ZN–2011–0-01683, 2011.

4.Bg2 Bg7 5.c4 Na6 6.a3 d5 7.cd5 Nd5 8.d4 Nac7 9.0-0 Nb5 10.Bb2 0-0 11.e4 Ndc7 12.a4 Nd6 13.Nbd2 Be6 14.Ng5 Bd7 15.Qc2 Ne6 16.Ngf3 a5 17.ba5 Qa5 18.Ne5 Rfd8 19.Nb3 Qb6 20.f4 Nc7 21.Nd7 Rd7 22.f5 e5 23.f6 Bh6 24.Kh1 ed4 25.Bd4 Qb4 26.Bc3 Qc4 27.Rfd1 Rdd8 28.Rd4 Qe6 29.Nc5 Qc8? 30.e5+– Be3 31.ed6 Bd4 32.Bd4 Rd6 33.Qd2 Ne8 34.Re1 Nf6 35.Qb2 Nd5 36.Be5 Qe8 37.Qe2 Qe7 38.Bd6 Qd6 39.Qc4 b6 40.Nd3 Rd8 41.Qd4 c5 42.Qc4 Nf6 43.Ne5 Qc7 44.Qf4 Qd6 45.Nc4 Qf4 46.gf4 Nh5 47.Nb6 Nf4 48.Bf1 Ne6 49.a5 Rd6 50.Bc4 Nc7 51.Re7 Ne6 52.Rd7 Rd7 53.Nd7 Nc7 54.Nf6 Kf8 55.Nd5 Na8 56.a6 Ke8 57.Bb5 Kd8 58.Bc6 (58.Bc6 Nc7 59.a7+–) 1–0. Bendig,Frank (2205) – Pintonello,Gilberto (2015), BI–2007–F–00003, 2008.

4.Bg2 Bg7 5.d4 Qb6 6.a3 a5 7.ba5 Qa5 8.Bd2 Qb6 9.Nc3 d6 10.0-0 Nbd7 11.e4 e5 12.de5 de5 13.Qb1 Qc7 14.Qb4 Bf8 15.Qb2 Bc5 16.Rfb1 0-0 17.Bf1 Ng4 18.Be1 h6 19.h3 Ngf6 20.Bd3 Re8 21.Kg2 Bf8 22.Nd2 Nc5 23.Bf1 Be6 24.a4 Ra7 25.f3 Rea8 26.Kh2 Nfd7 27.Bf2 Na4 28.Na4 Ra4 29.Ra4 Ra4 30.Qb7 Qb7 31.Rb7 Ra2 32.Bd3 Nc5 33.Bc5 Bc5 34.Kg2 Be3 35.Nf1 Bd4 36.Nd2 c5 37.Kf1 Bh3–+ 38.Ke2 Be6 39.Rc7 h5 40.Rb7 Ra1 41.Bc4 Bc4 42.Nc4 Rg1 43.Nd6 Rg2 44.Ke1 Rg3 45.Rf7 h4 46.f4 h3 47.f5 h2 (47...h2 48.Rh7 Kh7 49.fg6 Rg6 50.Ke2 h1Q 51.Nf7 Rg2 52.Kd3 Qf1) 0–1. Baumgartner,Heinz – Opl,Klaus (2305), AUT–chT, 1981.

4.Bh3 Bg7 5.a4 (5.d4!?=+) 5...Nd5–/+ 6.0-0?? (better is 6.c3 Nb4 7.d4–/+) 6...Ba1–+ 7.e4 (7.c3 h5 8.Bg2–+) 7...Bg7 (better is 7...Nb6–+) 8.ed5 0-0 (8...cd5 9.d4–+) 9.b5 (9.Nc3 Na6 10.Ba3 Nc7–+) 9...cb5 (9...cd5!? 10.Re1–+) 10.ab5 Qb6 11.Ng5 Qb5 12.c4?? Qc4 13.d3 Qd5 14.Bd2 Nc6 15.Bg2 Qd3 16.h4 h6 17.Re1 hg5 18.Re3 Qd4 19.hg5 d6 20.Na3 Bg4 21.f3 Be6 22.Qe2 Qa1 23.Bf1 Bd4 24.Qd3 Be3 25.Qe3 Bh3 26.Bc3 Qf1 27.Kh2 Qg2 0–1. Gr8test Alive – Letsplay!, ChessWorld.net, 2005.

5.a3 d5 6.Bg2 ab4 (6...Bg7 7.0-0=) 7.ab4= Ra1 8.Ba1 Na6 (8...Nbd7 9.0-0=) 9.c3 (9.b5 Nc7 10.bc6 bc6=) 9...Bg7+= 10.d3 0-0 11.0-0 Bg4 12.Nbd2 Nd7 (12...Qd6 13.h3 Bf3 14.Nf3=) 13.h3 Bf3 14.Bf3 (14.Nf3 Qb6=) 14...e6 15.Bg2 Qb6 16.Qc2 Ra8 17.Bb2 Nc7 18.Ra1 Ra1 19.Ba1 ½–½. Smyslov,Vassily – Grefe, Lone Pine, 1976. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6 4.Bb2 a5)

5.a3 Bg7 6.Bg2 0-0 7.0-0 Re8 8.c4 d6 9.d3 e5 10.Qb3 Qc7 11.Nc3 Nbd7 12.Nd2 Nf8 13.b5 Ne6 14.bc6 bc6 15.Nce4 Nd7 16.Rfc1 f5 17.Nc3 Rb8 18.Qa2 Ndc5 19.Rcb1 Nd4 20.Bc1 Bd7 21.Rb8 Rb8 22.Rb1 Kf8 23.Kf1 Rb6 24.e3 Nde6 25.Qc2 Qb8 26.Rb6 Qb6 27.Bb2 h6 28.Ke2 Kf7 29.h3 Ng5 30.h4 Nh7 31.Bf3 Nf6 32.Bg2 Ng4 33.Bh3 Nf2 34.Kf2 Qb2 35.Qb2 Nd3 36.Ke2 Nb2 37.Bf1 e4 38.Na2 Be6 39.Ke1 d5 40.cd5 cd5 41.Nc1 Bc3 42.Ke2 Bd2 43.Kd2 0–1. Piepho – Benner, 1989.

5.ba5 Qa5 6.Bg2 Bg7 7.0-0 0-0 8.d3 d6 9.Nbd2 e5 10.a4 Qc7 11.c4 Re8 12.Qc2 Na6 13.Rfe1 d5 (13...Nc5 14.e4+=) 14.cd5= Nd5 15.Rec1 Nab4 16.Qb1 c5 17.Nc4 f6 18.a5 Be6 (18...Bh6 19.Nb6 Nb6 20.ab6 Ra1 21.bc7 Rb1 22.Rb1+=) 19.e4+= Ne7 20.Nb6 Rad8 (20...Bh6 21.Na8 Ra8 22.Rc3+/–) 21.d4 ed4 22.Nd4 Bf7 23.Nb5 Qc6 24.Na7 Qd6 25.Nb5 Qc6 26.Na7 Qd6 27.Nb5 Qc6 ½–½. Lang,S – Zwanzger, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6 4.Bb2 a5)

8.c3 d5 9.Bg2 Bg7 10.0-0 0-0 11.d3 Na6 12.Nbd2 Rd8 13.Qc2 Ne8 14.Rb1 Qa7 (14...Nd6 15.Re1=) 15.Qa4 Nd6 (15...Qb6 16.c4+=) 16.c4+= Ba1 (16...dc4 17.Bg7 Kg7 18.Qa5+=) 17.Qa1 (17.Ra1 dc4 18.dc4 Qb8+=) 17...dc4 18.dc4 Bf5 19.Rc1 Ra8 20.Qe5 Nb4 21.Qe7 Qa3 22.Rf1 (22.Rd1 Bc2 23.Re1 Na6+=) 22...Nc2= 23.Qh4 h5 (23...Re8 24.g4 Be4 25.Ng5 Bg2 26.Qh7 Kf8 27.Qh6 Ke7 28.Kg2=) 24.Qf4 Ne8 (24...Qc5 25.Rd1+=) 25.e4 Be6 26.e5 Qe7 27.Rb1 Kg7 (27...Ra2 28.Qh6 Bf5 29.Ne4+=) 28.h4 (28.Qg5 Qg5 29.Ng5 Bc8+=) 28...Nb4 (28...Ra2 29.Ng5+=) 29.Ng5 (29.Nd4 Bg4+=) 29...Bf5= 30.Be4 Nd3 31.Bd3 Bd3 32.Re1 (32.Rb6 Ra1 33.Kg2 Ra5+=) 32...Bf5 (32...Nc7 33.Re3 Bf5 34.Nb3=) 33.e6 (33.Ndf3 c5+=) 33...Be6 (33...f6 34.Qd4+=) 34.Ne6 fe6 35.Ne4 (35.Qe5 Qf6=) 35...e5+= 36.Ng5 (36.Qe3 b5+=) 36...Ra1 (36...ef4?! 37.Re7 Kf6 38.Rb7 fg3 39.fg3=) 37.Qe3 Re1 38.Qe1 b5 (38...Nf6+=) 39.Nf3 (39.f4 bc4 40.fe5 Nc7+=) 39...e4 40.Nd4 bc4 41.Qc3 Kh7 42.Qc4 e3 43.fe3 Qe3–+ 44.Kg2 Nd6 45.Qc5? Nf5 46.Qa7–/+ Kg8 47.Qb8 Kf7 48.Nf5 Qe4 49.Kh2 gf5 50.Qc7 Ke6 51.Qd8 Qe2 52.Kh3 Qf3 53.Kh2–/+ Ke5 54.Qe7 Kd4 55.Qb4–/+ Ke3 56.Qc3= Kf2 57.Qc5 Ke1 58.Qc1 Ke2 59.Qc2 ½–½. Tiggelman,R – Ooms,A, Belgian Interteams, 2001. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6 4.Bb2 a5)

8.c3 Bg7 9.Bg2 0-0 10.0-0 d5 11.d3 Bg4 12.Nbd2 Nbd7 13.Qa4 e5 14.c4 Re8 15.h3 Bf3 16.Nf3 e4 17.Bd4 Qc7 18.Nd2 ed3 19.ed3 Qd6 20.Nf3 b6 21.Bc3 Bh6 22.Nd4 dc4 23.dc4 c5 24.Nb5 Qb8 25.Rd1 cb4 26.Qb4 Re2 27.Qd6 Qd6 28.Rd6 Re6 29.Re6 fe6 30.Bc6 Bf8 ½–½. Bokelmann – Leers Fischer, corr 1993.

8.c3 Bg7 9.Bg2 0-0 10.0-0 d5 11.d3 Bg4 12.Nbd2 Nbd7 13.Qa4 e5 14.h3 Bf3 15.Bf3 Bh6 16.Qa2 Rd8 17.Rb1 Re8 18.e4 Qd8 19.Nb3 Qc8 20.Kg2 Nf8 21.h4 de4 22.de4 Ne6 23.Qe2 Bg7 24.Qe3 h5 25.Bb2 Ng4 26.Qb6 Nf6 27.Na5 Re7 28.Rd1 Kh7 29.Bc1 Bh6 30.Bh6 Kh6 31.Nc4 Qb8 32.Rd6 Kg7 33.b5 cb5 34.Qb5 Rc7 35.Qe5 Rc5 36.Rd5 Qe5 37.Ne5 Nd5 38.ed5 Nf8 39.Be4 f6 40.Nd3 Rc4 41.Bf3 Rc3 42.Nf4 b5 43.d6 b4 44.Nd5 Rc4 45.Ne3 Rc8 46.Bd5 Rc3 47.Nc4 b3 48.Kf1 Rc1 49.Kg2 Rc2 50.Na3 Rd2 51.Be4 Rd6 52.Kf3 f5 53.Bb1 Ne6 54.Ke3 Nc5 55.Nb5 Rd1 56.Nc3 Rg1 57.Kd4 Ne4 58.Ne4 fe4 0–1. Poley – Fries Nielsen, Rimavska Sobota 1991.

8.c3 Bg7 9.Bg2 0-0 10.0-0 Re8 11.d3 d5 12.Nbd2 Nbd7 13.Qb3 e5 14.c4 h6 15.cd5 cd5 16.Rc1 Qd6 17.d4 e4 18.Ne5 Qe6 19.f3 ef3 20.ef3 Qb6 21.Kh1 Nb8 22.Ne4 Nc6 23.Nf6 Bf6 24.Qd5 Be6 25.Qc5 Qb4 26.Nc6 Qc5 27.dc5 Ba1 28.Ra1 bc6 29.f4 Rc8 30.Rd1 Rc7 31.Rd6 Bd7 32.Be4 Kg7 33.Kg2 Be8 34.Kf3 f5 35.Bd3 Bf7 36.Ke3 h5 37.Kd4 Bd5 38.Bc4 Bf3 39.Ke5 Re7 40.Re6 Rd7 41.Rd6 Re7 42.Be6 h4 43.Rd7 Rd7 44.Bd7 hg3 45.hg3 Kh6 46.Kd6 Kh5 47.Bc6 Be4 48.Be4 1–0. Sigurjonsson – German, Lugano 1968.

8.Bf6 ef6 9.c3 d5 10.Bg2 Bd6 11.0-0 0-0 12.d3 Bg4 13.Nbd2 Nd7 14.Qa4 Re8 15.e3 Bf5 16.d4 Qc7 17.Ra1 Nb6 18.Qd1 Qd7 19.Nb3 Nc4 20.Nfd2 Nd2 21.Qd2 b6 22.Ra6 Qb7 23.Qa2 Bd3 24.Ra7 Qc8 25.Qa1 Bb8 26.Ra8 Qg4 27.Bf1 Qf5 28.Nd2 Bf1 29.Nf1 Qe6 30.Qa6 Bc7 31.Re8 Qe8 32.Nd2 Kf8 33.Qb7 Qd7 34.c4 Ke7 35.cd5 cd5 36.b5 h5 37.Nb1 Bd8 38.Qa8 Qc7 39.Qa2 f5 40.Qb3 Ke6 41.Nc3 Qc4 42.Qc4 dc4 43.Kf1 Be7 44.Na2 g5 45.Ke2 g4 46.Kd2 h4 47.Kc3 f4 48.gf4 ½–½. Poleschi,Ricardo D – Buijsman,Johan, SIMUL, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6 4.Bb2 a5)

8.Bf6 ef6 9.c3 Bg7 10.Bg2 0-0 11.0-0 Re8 12.Nd4 d6 13.d3 f5 14.e3 Nd7 15.Nd2 Ne5 16.Qc2 h5 17.N4f3 Be6 18.Ng5 Bd7 19.d4 Ng4 20.Qa2 d5 21.Ra1 Bh6 22.Ndf3 Nf2 23.Kf2 f6 24.Nh3 Be3 25.Kf1 Qb5 26.Qe2 Qb6 (better is 26...Qe2 27.Ke2 f4=) 27.Qd3+/– Kg7 28.Nf4 Qc7 29.Re1 Bf4 30.Re8 Be8 31.gf4 Qf4 32.Kf2 Bf7 33.Qe3 Qd6 34.h4 f4 35.Qd2 Be6 36.Bf1 Bf5 37.Bd3 Be4 38.Qe2 Qe6 39.Nd2 f5 40.Nf3 Qd6 41.Qd2 Qd8 42.Qf4 Bd3 43.Qe5 Qf6 44.Qc7 Kh6?? (44...Kf8 45.Qc8 Ke7 46.Qb7 Kf8 47.Ng5=) 45.Qb7 (better is 45.Ng5 Qg7 46.Qd8+–) 45...Qg7 (better is 45...Bb5!?=) 46.Qc6+/– Qe7 47.Qc5 Qe2 48.Kg3 f4? 49.Kf4+– Qe4 50.Kg3 Qg4 51.Kf2 Qf5 52.Qe7 Qf4? 53.Qg5 Qg5 54.Ng5 Kg7 55.Ke3 Bc4 56.Kf4 Kf6 57.Nf3 Ba6 58.Ne1 Bb5 59.Ng2 Bd7 60.Ne3 Bc6 61.b5! Bb7 62.Ng2 Ke6 63.Kg5 Kd6 64.Kg6 Bc8 65.Kh5 1–0. Chernov,Alexander (2160) – Fominyh,Evgeny (2290), RUS–ch sf Novosibirsk, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 c6 4.Bb2 a5 5.a3 ab4 6.ab4 Ra1 7.Ba1 Qb6)

4.a3 a5 5.Bb2 ab4 6.ab4 Ra1 7.Ba1 Bg7 8.h3 Qd6 9.Be5 Qb4 10.Bc7 Nbd7 11.Bg2 Nh5 12.g4 Nf4 13.Bf4 Qf4 14.c3 0-0 15.Qb3 e6 16.g5 Ne5 17.Ne5 Be5 18.h4 f6 19.gf6 Bf6 20.h5 Bh4 21.Bf3 gh5 22.Qb2 Bd7 23.d4 Be8 24.Qd2 Qf6 25.Qb2 b5 26.Nd2 Qf4 27.Nb3 Be7 28.Nd2 h4 29.Rh3 Qf6 30.Nf1 Qg5 31.Ne3 Qg1 32.Nf1 Kh8 33.Rh1 Qg5 34.Ne3 Bd6 35.Kf1 Rg8 36.Ke1= Bf4 37.Nf1 Rf8 38.Qa1 Bd7 39.e3 Be3 40.Ne3 Rf3 41.Qa8 Kg7 42.Qb7 Rf7 43.Qb8 Qf4 44.Rg1 Kh6 45.Ng4 Kh5 (45...Kh5 46.Qe5 Qe5 47.Ne5 Re7=+). amoruritme – Double Wood, ChessWorld.net, 2005.

4.Bb2 e6 5.a3 Bd6 6.Bg2 Nc6 7.0-0 Bd7 8.d3 Qe7 9.e4 (better 9.c4 Qd8 10.e4 de4 11.de4+–) 9...0-0-0?? (9...de4!? 10.de4 e5+=) 10.ed5 (better 10.e5 Ne5 11.Ne5+–) 10...ed5+– 11.Re1 h6?? (better 11...Be6+–) 12.Re7+– Be7 13.c4 (better 13.b5 Nb8 14.Qe1 Rde8+–) 13...g5 (13...dc4 14.b5 Nb8 15.dc4+–) 14.Ne5 (14.cd5 Nd5 15.b5 Nb8 16.Bh8 Rh8+–) 14...Be6 (14...Ne5 15.Be5 Rhe8 16.Nc3+–) 15.cd5 Bd5 16.Bd5 Rd5 17.Ng4 (better 17.Nc6!? bc6 18.Nc3 Rf5+–) 17...Ng4 (17...Nd4 18.Nc3 Rdd8 19.Ne2 Ng4 20.Nd4+–) 18.Bh8 f5 (18...Nge5 19.Qh5+–) 19.Nc3 (19.Qf3 Rd8 20.Qf5 Kb8+–) 19...Rd7 (19...Rd8 20.Qf3 Rf8 21.Qd5 Rh8 22.Qf5 Kb8 23.Qg4+–) 20.f3 (better 20.Qf3 Nf6 21.Qf5 Nd4+–) 20...Ne3 21.Qe2 f4 22.Nd1 Nf5 23.gf4 gf4 24.Qe4 Nh4 25.Nf2 Bg5 26.Nh3 (26.Qe2!? Nf5+–) 26...Re7 27.Ng5 (better 27.Qd5 Rd7 28.Qc4 Nf3 29.Kg2+–) 27...Rd7 (27...Re4 28.Ne4 Ne5+–) 28.Nh3 Re7 29.Qf4 Ng6 30.Qh6 (30.Qf5!? Rd7 31.Qg6 Nd8+–) 30...Nge5 31.Be5 (better 31.Qf8 Kd7 32.Qf5 Kd6+–) 31...Re5 32.Qh8 Kd7 33.Kf2 Rd5 34.Nf4 Rd4 35.Qd4! Nd4 36.h4 Nf5 37.h5 Ke7 (37...c6 38.Rg1 a5 39.Rg7 Kd6 40.ba5 Ng7 41.h6+–) 38.Rh1 Kf6 (38...Nh6 39.Re1 Kd7 40.Ne6+–) 39.h6 (better 39.Nd5!? Kg5+–) 39...a6 (39...Nh6 40.Rh6 Kg5+–) 40.h7 (40.h7 Kg7 41.h8Q Kf7 42.Rh7 Ng7 43.Qg7 Ke8 44.Qe7) 1–0. zucchini – pieeater, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.Bb2 Bg4 5.Bg2 Bf3 6.Bf3 a5 7.b5 Qd7 8.0-0 Qb5 (8...Bg7!? 9.c4 0-0+=) 9.Bf6+/– ef6 10.Nc3 Qd7 11.Bd5 (11.Nd5!? Bg7 12.Rb1+/–) 11...c6+= 12.Bf3 Bb4 13.Ne4 Qe7 14.c3 (14.Qc1 0-0 15.Qb2+=) 14...Bd6 (better is 14...f5!? 15.Ng5 Qg5 16.cb4 ab4=) 15.d4 f5 (15...Ba3 16.Rb1 f5 17.Nd2+/–) 16.Nd2 (16.Nd6!? Qd6 17.Qb3+/–) 16...0-0+= 17.c4 White prepares d5 17...Bb4 18.d5 (18.e3 Nd7+=) 18...Bd2 (18...Rd8!?=) 19.Qd2+/– Rd8 20.Qh6 c5 (20...Nd7 21.Rfd1+=) 21.h4 (21.Rab1 Na6+/–) 21...Nd7+= 22.Rad1 Nb6 23.h5 (better is 23.Qf4+=) 23...f6?? (better is 23...Nc4 24.Qf4 Nd6–/+) 24.hg6+– Kh8 (24...Rd6 25.Rb1+–) 25.gh7 (better is 25.Qh4 Rd7 26.Kg2+–) 25...Qh7?? (better is 25...Nc4 26.Kg2 Rac8+–) 26.Qf6 Kg8 27.Qb6 Rdc8 (27...Qd7 28.d6+–) 28.Qe6 (28.d6 Rab8 29.Bd5 Kg7+–) 28...Kf8 (28...Qf7 29.Qe3 f4 30.Qf4 Qf4 31.gf4+–) 29.d6 Re8 30.Qf6 Kg8 (30...Qf7 31.Qg5 Qg7 32.Qf5 Qf7 33.Qc5 Rac8+–) 31.Kg2 (31.Bd5 Re6 32.Be6 Qf7 33.Bf7 Kf8 34.Bd5 Ke8 35.Qe7) 31...Rf8 32.Bd5 Rf7 33.Rh1 Qg7 (33...Kf8 34.Bf7 Qh1 35.Rh1 Rd8 36.Rh8) 34.Bf7 Qf7 35.Rh8 1–0. Tony_Farrell – Billbob, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.Bb2 Bg4 5.Bg2 Bf3 6.Bf3 c6 7.0-0 Qd6 8.a3 d4 (8...Bg7!?=) 9.e3 de3 10.de3 Qd1 11.Rd1 Nbd7 12.Nc3 e5 13.Ne4 Ne4 14.Be4 Bg7 15.Rab1 a5 (15...Rd8 16.g4=) 16.ba5 (16.b5!? Rc8 17.bc6 bc6 18.Bc3+–) 16...Ra5+= 17.Rd6 Ra4 18.Bf3 f6 19.Rbd1 Nb6 20.Rd8 Ke7 21.Rh8 Bh8 22.Be2 g5 (22...Nc4 23.Bc3 c5 24.Rb1=+) 23.f3 Nd5 (23...Nc4 24.Bc4 Rc4 25.Rd2=+) 24.e4 Ne3 25.Rd2 Ke6 26.Kf2 Nc4 Exerts pressure on the isolated pawn 27.Bc4 Rc4 28.Ke3 ½–½. zucchini – Billbob, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.Bb2 Bg4 5.Bg2 Bf3 6.Bf3 Bg7 7.0-0 Qd6 8.b5 b6 (better is 8...e5!?=) 9.c4!+/– a6 (9...dc4 10.Ba8 Pinning (10.Ba8 Deflection)) 10.Bd5 Nd5 11.Bg7 Rg8 12.cd5 Rg7 13.Nc3 Nd7 14.ba6 Ra6 15.Nb5 Qc5 16.Qb3 Ra5 17.a4 Ne5 (17...e5 18.Rfc1 Qf8 19.d6+–) 18.Rac1 Qd4 (18...Rb5 19.ab5 Qd6+–) 19.Nd4 Kd7 20.Nb5 c6 21.dc6 Nc6 22.Qd5 Ke8 23.Qc6 1–0. steveberkley – Billbob, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.Bb2 Bg4 5.Bg2 Rg8 6.Ne5 h5 7.Ng4 Ng4 8.h3 Nh6 9.0-0 f6 (9...h4 10.g4+=) 10.Nc3 (10.c4 e6+–) 10...e6 11.a3 Nc6 12.b5 (better 12.Nb5+–) 12...Nd4? (12...Ne5!?+=) 13.e3 (13.Nd5!? Nhf5 14.Nf4 e5 15.Bd4 Nd4+–) 13...Ndf5+– 14.e4 Ne7 15.ed5 ed5 16.Re1 Nhf5?? (better 16...c6+–) 17.Bd5 (better 17.Nd5 Kf7 18.Nf6 Bg7+–) 17...Rg7 18.Bb7 Rb8 19.Bc6 Kf7 20.a4 (20.Qe2 Kg8 21.Bg2 c6+–) 20...Nd4?? (20...Nc6 21.Qb1 Ne5 22.Qa2 Ke8+=) 21.Bg2+– Ndf5 (21...c5 22.d3+–) 22.Ne4 (22.Qe2 Rh7 23.Ne4 Bg7 24.Qc4 Kf8+–) 22...Nd5 (22...Nd4 23.Ra3 Nef5 24.Rd3+–) 23.c4 Nb4 24.d4 (better 24.c5 Be7 25.Qb3 Nd5 26.Nf6 Bf6 27.Qd5 Kf8 28.Qd8 Bd8+–) 24...Kg8 25.d5 Be7 26.Qb3 g5 (26...Rf7 27.c5 Nd5 28.Nd6 cd6 29.Bd5+– (29.Qd5?! dc5 30.Qc4 Kg7+–)) 27.Rad1 (27.c5 Nd5 28.Qd5 Qd5 29.Nf6 Kf8 30.Nd5 Bc5 31.Bg7 Kg7+–) 27...g4 (27...a5 28.c5 Rf7 29.Bf3+–) 28.h4 (better 28.c5 Rf7 29.Qb4 Rc8+–) 28...a5 29.ba6! Na6 30.Qc3 Bb4 (30...Rf7 31.Ng5 Bb4 32.Nf7 Bc3 33.Nd8 Be1 34.Bf6+–) 31.Qf6 Be1 32.Re1 (32.Qa6?! Bf2 33.Nf2 Rb2 34.Qe6 Rf7+=; 32.Qf5 Rb2 33.Re1 Rb8+–) 32...Nb4 (32...Qf6 33.Nf6 Kf7+–) 33.Qf5 Nd3 34.Bg7 Ne1 35.Bc3 (35.Qg6 Nf3 36.Bf3 Rb1 37.Kh2 Rh1 38.Bh1 Qe7 39.Nf6 Qf6 40.Bf6 Kf8 41.Qg7 Ke8 42.Qe7) 35...Ng2 36.Kg2 (36.Qg6 Kf8 37.Bg7 Kg8 38.Bh6 Kh8 39.Qg7) 36...Rb1 37.Qg6 Kf8 38.Bg7 Ke7 (38...Kg8 39.Bh6 Kh8 40.Qg7) 39.Bf6 (39.Bf6 Kd7 40.Qf5 Ke8 41.Qh5 Kf8 42.Qh8 Kf7 43.Qg7 Ke8 44.Qg8 Kd7 45.Qd8; 39.Qe6) 1–0. zucchini – Eries, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.d3 Bg7 5.Bb2 0-0 6.Bg2 c5 (6...Qd6 7.Qd2=+) 7.bc5= Qa5 8.Nbd2 Qc5 9.0-0 Nc6 10.c4 dc4 11.Nc4 Qh5 12.Rb1 Rb8 13.Nce5 Bh3 14.Nc6 bc6 15.Bd4 (15.Bh3!? Qh3 16.Qa4+=) 15...Bg2= 16.Kg2 Qd5 (16...c5 17.Be5 Rb6 18.Qc2=) 17.Qa4+= Rb5 (17...Rb1 18.Rb1 c5 19.Bf6 Bf6 20.Qa7+=) 18.Qa7+– (worse 18.Ba7 Ra8 19.Qd4 Rb1 20.Rb1 Qa2 21.Rb8 Rb8 22.Bb8 Qe2 23.Qd8 Bf8=+) 18...Ra5 19.Qe7 Re8 20.Bf6 Re7? (better 20...Raa8 21.Qb7 Bf6+–) 21.Rb8 Bf8 (21...Re8 22.Re8 Bf8 23.Rb1+–) 22.Be7 Ra2 (22...Qa2 23.Bf8 Rb5 24.Re8+–) 23.Bf8 (better 23.Rf8 Kg7 24.Rd8 Re2 25.Rd5 cd5+–) 23...f6 (23...h6 24.Bc5 Kg7 25.Bd4 f6+–) 24.Rfb1 (24.Rfb1 Re2 25.R1b7+–) 1–0. Fan Run,Kun – Malek,Omid (2015), Montreal Open, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.d3 Bg7 5.d4 0-0 6.Bf4 Nh5 7.Bc1 Qd6 8.c3 a5 9.b5 c5 10.Bg2 Bf5 11.Ba3 b6+=.

4.d3 Bg7 5.d4 a5 6.b5 Bd7 7.e3 0-0 8.c4 c5 9.Bb2 Be6 10.dc5 dc4 11.Na3 Qc7=.

4.d3 Bg7 5.d4 Bf5 6.Bf4 (6.Bg2 a5 7.b5 c6 8.Na3 0-0 9.Nh4 Bd7 10.Rb1 cb5 11.Nb5 Nc6+=) 6...Nh5 7.Bc1 0-0 8.Bg2 a5 9.b5 c5 10.0-0 Nd7 11.Bb2 Nb6+=.

4.d3 Bg7 5.Bg2 a5 (5...Ne4 6.d4 a5 7.b5 0-0 8.0-0 c6 9.a4 Qb6 10.bc6 Nc6 11.c3 Bf5+=; 5...0-0 6.0-0 a5 7.b5 Ne4 8.d4 c6 9.a4 Qb6 10.bc6 Nc6 11.c3 Bf5+=) 6.b5 Ne4 7.d4 0-0 8.0-0 c6 9.a4 Qb6 10.bc6 Nc6 11.c3 Bf5 +=.

4.d4 e6 5.c3 =.

4.d4 Bf5 5.Bg2 e6 (5...Bg7 6.0-0=) 6.a3 a5 7.b5 Nbd7 (7...c6 8.bc6 Nc6 9.Nh4=) 8.0-0 (8.Nh4 Ne4=) 8...Bg7 (8...Ne4 9.Nh4=) 9.Nh4 Ne4 (9...Nb6 10.Nf5 gf5 11.Qd3=) 10.Nf5 ef5 (10...gf5 11.Bf4=) 11.c4 (11.e3 h5=) 11...dc4 12.e3 0-0 (12...h5 13.Nd2 Nd6 14.Qc2=) 13.Nd2 Nd6 14.a4 Re8 (14...Nb6 15.Ba3+=) 15.Qc2 Nb6 (15...Nf6 16.Nc4 Rc8 17.Na5+/–) 16.Ba3 Qd7 (16...Re7 17.Bc5+/–) 17.Bd6+/– cd6 18.Nc4 Nc4 19.Qc4 Rac8 20.Qd5 Re7 21.b6 Rc2 (21...f4!? 22.gf4 Ra8 23.Rfc1+–) 22.Qa5 Qc8 23.Qd5 Rd7 24.a5 h5 (24...h6 25.Rfb1+–) 25.a6 ba6 26.b7 Qc7 27.Ra6 Rd8 28.Ra8 (28.Ra8 Rb2 29.Rd8 Qd8 30.Rc1+–) 1–0. Atterl – Double Wood, ChessWorld.net, 2005.

4.Bg2 a5 5.b5 Bg7 6.d4 c6 7.Nc3 (7.Na3 Ne4=) 7...Ne4=+ 8.Bb2 Nc3 9.Bc3 cb5 10.Rb1 (10.a3 Nc6=+) 10...b4–/+ 11.Bd2 Nc6 12.e3 0-0 13.0-0 Qd6 14.c3 Bf5 15.Rb2 Bd3 16.Re1 b5 17.cb4 ab4 18.Qb3 (18.Bf1!? Bc4 19.Qb1–+) 18...Ra3–+ 19.Qd1 Rfa8 20.Qa1 (better 20.Rb3 Be4 21.Ne5 Rb3 22.Qb3 Be5 23.de5 Qe5 24.f3–+) 20...b3! 21.Bc3 (21.ab3 Ra1 Pinning (21...Ra1 Deflection); 21.Rb3 Ra2 Deflection) 21...b4 22.Qd1 (22.Bd2 e5 23.Kh1 ed4 24.ed4 Nd4–+ (24...ba2?! 25.Ne5–+; worse 24...Ra2 25.Ra2 ba2 26.Bf4–+)) 22...bc3 (22...ba2!? 23.Qd3 bc3 24.Ra2 Ra2 25.Qc3–+) 23.Rb3 Rb3 (23...Bc4 24.Ra3 Ra3 25.Bf1 Bf1 26.Rf1–+) 24.ab3 Nb4 25.Bf1 Bf5 26.Qc1 (26.Qe2 Qc6 27.Rc1 Na2–+) 26...Na2 27.Qa1 c2 28.Rc1 (28.Qb2 Qa3 29.Qa3 Ra3–+) 28...Nc1 29.Qa8 Bf8 30.Nd2 (30.Ne1 Ne2! 31.Be2 c1Q–+) 30...Nd3 31.Bd3 c1Q (31...c1Q 32.Kg2 Bd3–+) 0–1. ffrancis – marekt, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5)

4.Bg2 Qd6 5.a3 Bg7 6.d4 Bf5 7.Nh4 Bd7 8.Bf4 Qc6 9.0-0 =.

4.Bg2 Qd6 5.c3 Nbd7 6.d4 Bg7 7.Bf4 Qb6 8.0-0 Nh5 9.Be3 =.

4.Bg2 e5 5.Ne5 Bb4 6.0-0 Bf5 (6...0-0 7.d4=) 7.c4+= 0-0 (7...Qe7 8.d4+=) 8.cd5+/– Nbd7 (better is 8...Re8 9.d4 Nbd7+/– (9...Nd5? 10.Qb3 c6 11.e4+–)) 9.Nd3 (9.Qb3 a5 10.d4 Re8+/–) 9...Bd6 (9...Bd3!? 10.ed3 Bd6=) 10.Qb3 (10.Nb2 Nb6+=) 10...Qe7 (better is 10...Re8 11.Re1 Nb6+=) 11.f3?? (better is 11.Re1+=) 11...Qe2–/+ 12.Nf2 Nc5 13.Qe3 Qe3 14.de3 Be5 15.Ba3 Ba1 16.Bc5 Rfe8 17.e4 b6 18.Bb4 a5 19.Bd2 Bd7–/+ 20.Nc3 Bb2 21.f4 Ng4 22.Nd3 Bc3–+ 23.Bc3 Bb5 (23...Bb5 24.Nf2 Bf1 25.Ng4 Bg2 26.Nf6 Kf8 27.Kg2 Rec8–+) 0–1. Kapote – Double Wood, ChessWorld.net, 2005.

4.Bg2 e5 5.Ne5 Bb4 6.c3 Bd6 7.Ba3?? (better is 7.d4=) 7...Be5–+ 8.Bd5 (8.0-0–+) 8...Qd5 9.Rg1 Nc6 10.d3 (10.Qa4 Be6–+) 10...Be6 11.c4 (11.f4 Bd4 12.Rf1–+) 11...Qd4 12.e3 Qa1 (12...Qa1 13.Qc2 Ng4–+) 0–1. Gr8test Alive – Double Wood, ChessWorld.net, 2005.

4.Bg2 e5 5.Ne5 Bb4 6.c4 0-0 (6...c6 7.cd5 Nd5 8.0-0=) 7.cd5 Nd5 8.a3 Be7 9.d4 f6 (9...c6 10.e4 Nb6 11.0-0=) 10.Nd3 Nc6 11.Bb2 (11.Nc5 Kg7=) 11...Nb6 (11...Qd6 12.Nd2=) 12.e3 (12.Bc6 bc6 13.Nd2 Ba6+=) 12...Be6 13.Nd2 f5 (13...Rb8 14.0-0+=) 14.Nf4 (14.Nc5 Bc5 15.dc5 Nd7+=) 14...Bf7 15.Rc1 (15.0-0 Qd7+=) 15...Na5 (15...g5 16.Bc6 gf4 17.Bb7=) 16.Bc3 Nac4 17.Nc4 Bc4 18.Ba5 Bf7 19.0-0 Ba3 20.Rc3 Bd6 21.Bb7 Rb8 22.Ba6 Qd7 23.Qc2 g5+= 24.Nd3 Nd5 25.Nc5 Qe7 26.Ra3 Bc5 27.Qc5 Qc5= 28.dc5 Rb2 29.Bd3 f4 30.Rb1 Rb1+= 31.Bb1 Rd8 32.Bf5 Ne7+= 33.Rd3 Rb8 34.Be4+/– fe3 35.fe3 Rb1 36.Kf2 Rb2 (36...Rb2 37.Ke1 Rb1 38.Kd2 Rb2 39.Kc1 Rb5 40.Rd8 Be8 41.Re8 Kf7 42.Re7 Ke7+/–; 36...Rc1 37.Rd8 Kg7 38.Bc7+–). Subedei – Double Wood, ChessWorld.net, 2006.

4.Bg2 Bf5 5.Bb2 Bg7 6.0-0 0-0 7.c4 c6 8.cd5 cd5 9.d3 e6 10.Nbd2 Nbd7 11.h3 Qe7 12.g4 Bg4 13.hg4 Qb4 14.Rb1 Qg4 15.Bf6 Bf6 16.Rb7 Nc5 17.Rb5 Nd7 18.Nh2 Qh4 19.Ndf3 Qh5 20.d4 g5 21.e3 Bg7 22.Ne5 Qd1 23.Rd1 Ne5 24.de5 a6 25.Rc5 Rfc8 26.Rdc1 Rc5 27.Rc5 Be5 28.e4 Bd4 29.Rc6 de4 30.Be4 Ra7 31.Nf3 Bf6 32.Rc8 Kg7 33.Bc6 a5 34.Nd2 h6 35.Nc4 h5 36.Nd6 Be5 37.Nb7 h4 38.Nd8 g4 39.Be8 Rc7 40.Rc7 ½–½. Gutbier – Escher, 1995.

5.a3 Bg7 6.d3 0-0 7.Nbd2 Nbd7 8.Bg2 e5 9.c4 c6 10.Qc2 Re8 11.c5 Qc7 12.e4 b6 13.cb6 Qb6 (13...ab6 14.0-0+=) 14.0-0= Bb7 15.Rfc1 Bh6 16.ed5 (16.Rab1!?=) 16...cd5+= 17.Re1 Rac8 18.Qd1 Ng4 19.d4 (better is 19.Re2!?+=) 19...e4–/+ 20.Nh4 Nf2! 21.Kf2 e3 22.Kg1 ed2 23.Re8 Re8 24.Nf3 Qe6 25.Bf1 Qe3 26.Kg2 Nf6 (better is 26...Rc8–+) 27.Ne5?? (better is 27.Qa4–+) 27...Re5! 28.de5 (28.h3–+) 28...d4 29.Kh3 Ne4 (29...Ne4 30.Qg4 Nf2 31.Kh4 Bf8 32.Qg6 hg6 33.g4 Be7 34.g5 Bg5) 0–1. Wuesten,Christian (1825) – Toel,Karl Ludwig (2100), Duisburg Grossenbaum op, 2005. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bb2 Qd6)

5.a3 Bg7 6.d3 0-0 7.Bg2 a5 8.b5 Qb6 9.a4 =.

5.Na3 Bg7 6.b5 Nbd7 7.c4 e5 8.cd5 e4 9.Nd4 =+.

5.b5 Nbd7 6.Bh3 Qb4 7.Bf6 Nf6 8.Bc8 Rc8 9.Nc3 =+.

5.Nc3 Bg7 6.Nb5 Qb6 7.e3 Nc6 8.a4 Nb4 9.Be5 =.

5.Be5 Qb4 6.Nc3 c6 7.e4 Nbd7 8.Rb1 Qa5 9.Bd4 –/+.

5.a3 0-0 6.Bg2 Re8 7.d3 c6 8.0-0 Nbd7 9.c4 =.

5.Na3 0-0 6.Bg2 Qd6 7.Rb1 Qb4 8.Bf6 Qa3 9.Rb3 =+.

5.Bc3 a5 6.b5 c5 7.Bg2 0-0 8.Bb2 Nbd7 9.0-0 =.

5.Bg2 Qd6 6.Nc3 e5 7.a4 e4 8.Nd4 0-0 9.b5 =+.

5.h3 Qd6 6.a3 Nbd7 7.Bg2 e5 8.d3 0-0 9.0-0 =+.

5.a3 Bg7 6.Bg2 Qd6 7.Be5 Qd7 8.Nd4 0-0 9.0-0 =.

5.Na3 a5 6.b5 Nbd7 7.c4 e5 8.cd5 e4 9.Nd4 =.

5.Nc3 Bg7 6.Bg2 0-0 7.0-0 Qd6 8.Nb5 Qb6 9.a4 =+.

5.d3 Qd6 6.a3 Bg7 7.Nbd2 0-0 8.c4 c6 9.c5 =.

5.h3 Qd6 6.a3 Nbd7 7.Bg2 Bg7 8.d3 a5 9.b5 =+.

5.0-0 Bg7 6.Bb2 0-0 7.d3 a5 8.a3 ab4 9.ab4 =.

5.a4 Bg7 6.Bb2 0-0 7.0-0 Qf5 8.h3 Nbd7 9.Nc3 =.

5.Bb2 Qd6 6.a3 Nbd7 7.d3 Bg7 8.Nbd2 0-0 9.c4 =.

5.d3 Bg7 6.a3 a5 7.Bb2 ab4 8.ab4 Ra1 9.Ba1 =.

5.h3 Bg7 6.Bb2 Qd6 7.a3 Nbd7 8.0-0 0-0 9.d3 =.

5.0-0 0-0 6.Nd4 (6.d4 a5 7.b5 Ne4=) 6...Ne4 (better is 6...Qd6=+) 7.Be4? (better is 7.Bb2!?=+) 7...de4 (better is 7...Bd4 8.c3 de4 9.cd4 Qd4–/+) 8.f3?? (better is 8.c3–/+) 8...Bd4 (8...Qd4!? 9.Kg2 Qa1 10.Nc3–+) 9.e3 Ba1 10.fe4 Be5 (10...Bh3!? 11.Rf2–+) 11.d4 Bd6 (11...Bd6 12.a3 e5–+; 11...Bg7 12.Qd3–+) 0–1. Gr8test Alive – toolman, ChessWorld.net, 2005.

5.0-0 Qd6 6.a3 0-0 7.d4 Ne4 8.Bf4 Qb6 9.c4 =.

5.a3 a5 6.b5 c6 7.Bb2 0-0 8.a4 cb5 9.ab5 =.

5.Bb2 Qd6 6.Be5 Qb4 7.Nc3 Qa5 8.Rb1 c6 9.Bd4 –/+.

5.c3 0-0 6.d4 a5 7.b5 c6 8.a4 cb5 9.ab5 Nbd7 10.Na3 Nb6 11.0-0 Ne4 12.Qd3 Bf5 13.Qe3 Qc7 The backward pawn on c3 becomes a target 14.Bb2? (better 14.Bd2!?=+) 14...Na4–+ 15.Rfb1 Rfc8 (better 15...Nb2 16.Rb2 Qc3 17.Qc3 Nc3–+) 16.Rc1? (better 16.g4 Bg4 17.c4–+) 16...Nb2–+ 17.c4 Na4 18.Rab1 (18.Nh4 Qd7–+) 18...Bf6 19.cd5 (19.c5 Nec5 20.Ra1 Qd7 21.dc5 Ba1 22.Ra1 Qe6–+) 19...Nac3 20.Kf1 (20.Ra1 Qb6–+) 20...Qd6 21.Rb3 (21.Ra1–+) 21...Nd5 22.Rc8 Rc8 23.h3 (23.Qd3 Ng3! 24.fg3 Bd3 25.Rd3 Rc1 26.Kf2–+) 23...Ne3 (23...Ne3 24.Re3 Rc1 25.Ne1 Nd2 26.Kg1 Re1 27.Kh2 Bd4–+) 0–1. shm19cs – marekt, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 d5 4.Bg2 Bg7)

5.c3 Nbd7 6.d4 0-0 7.0-0 h6 8.Qd3 a5 9.b5 =.

5.d4 Ne4 6.c3 c6 7.Nfd2 f5 8.0-0 0-0 9.Nf3 =+.

5.0-0 Bg7 6.a4 0-0 7.a5 Ne4 8.d4 Bf5 9.c3 =.

5.Bb2 Bg7 6.b5 Qd6 7.c4 Qb4 8.Qb3 Qc4 9.Qc4 =.

5.d3 Bg7 6.Bb2 Qd6 7.a3 a5 8.0-0 ab4 9.Be5 =.

5.d4 Bg7 6.0-0 0-0 7.Bf4 g5 8.Bc1 Qd6 9.Ne5 =.

5.h3 Bg7 6.Bb2 Qd6 7.0-0 Qb4 8.Bc3 Qb6 9.d3 =+.

4.a3 b5 5.Bb2 (5.e4 Nf6 6.e5 Nd5 7.Bb5 Bg7+–) 5...f6 (5...Nf6!?+=) 6.e4+– Nb6 7.Be2 (7.Bb5!? Bb7 8.Nc3+–) 7...a6+= 8.Nc3 e5 9.d3 d5 10.ed5 Bg4? (10...Nd5 11.Nd5 Qd5 12.c4 bc4 13.dc4 Qd1 14.Rd1=) 11.0-0 (11.Ne5 Bh3 12.Ng4 Bg7+–) 11...Bf3 (11...Bh3 12.Re1 Bg7+–) 12.Bf3+– Ra7 13.d4 ed4 (13...Bd6!?+–) 14.Qd4 Be7 15.Rfe1 Qd6?? (15...0-0+–) 16.Re6 (16.Ne4 Qd8 17.d6 cd6 18.Nf6 Kf7 19.Bd5 Nd5 20.Nd5 Rf8 21.Qa7 Nc6+–) 16...Qd7 (16...Qd8 17.Rae1 0-0 18.Re7+–) 17.Rae1 Nc8 (17...0-0 18.Bg4 c5 19.bc5 Nc4+–) 18.Ne4 f5 (18...Rf8 19.Re7! Qe7 20.Nf6 Rf6 21.Re7 Ne7 22.Qf6 Nd7 23.Qh8 Kf7+–) 19.Qh8 Kf7 20.Qh7 (20.Qg7 Ke8 21.Qg8) 20...Ke8 (20...Kf8 21.Qg7 Ke8 22.Qg8) 21.Qg8 1–0. pieeater – Billbob, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Nd5)

4.a3 Bg7 5.c3 a5 6.b5 c6 7.e4 Nb6 8.d4 d5 9.e5 Bg4 10.h3 Bf3 (better 10...Bd7=) 11.Rg1?? (better 11.Qf3 0-0 12.Nd2=) 11...Bd1–+ 12.Kd1 f6 13.Bf4 (13.ef6 Bf6 14.Bh6 Na4–+) 13...g5 (13...fe5 14.Be5 Be5 15.de5–+) 14.Bd2 (14.ef6 Bf6 15.Bc1 Nc4–+) 14...Qd7 (14...fe5 15.de5 Be5 16.Bg5–+) 15.Be3 (15.ef6 Bf6 16.bc6 Nc6–+) 15...fe5 16.a4 (16.de5 Nc4 17.Bg5 cb5–+) 16...h6 (better 16...ed4 17.cd4 c5 18.Nd2–+) 17.h4 gh4 (better 17...ed4!? 18.cd4 Bd4 19.bc6 Nc6 20.Ra3–+) 18.de5 Be5 (better 18...Nc4 19.gh4 Be5 20.bc6 Nc6 21.Bh6 Rh6 22.Rg8 Kf7 23.Ra8 Qg4 24.Kc1–+) 19.Bb6 Rg8 20.Be3 (20.Be2 hg3 21.Bh5 Kf8 22.fg3 Qh3–+) 20...d4 21.cd4 Bd4 22.Ra2 Be3 23.Ke2 Bc5 24.Rc2 Qe6 (better 24...Qg4 25.Kd2 Bf2 26.Bc4 Bg1 27.Bg8 hg3 28.Nc3 Qg8 29.Ne2–+) 25.Kd1 b6 (25...Qd5 26.Nd2 Bf2 27.Rg2 hg3 28.Rc3–+) 26.Bc4 Qg4 27.Kc1 cb5 (better 27...Bf2!? 28.Rd1 Be3 29.Nd2 hg3 30.Bg8 Qg8 31.bc6 Nc6 32.Kb1–+) 28.Bg8 Qg8 29.Nd2 Kf7 (better 29...Qg7 30.Kb1 Bf2 31.Rg2 Bg3 32.ab5–+) 30.Ne4 ba4 31.Nc5 bc5 32.Rc5 Nd7 33.Rf5 Kg6 (better 33...Ke8 34.Kd2 Qa2 35.Ke3 Qe6 36.Kf4 Rb8 37.Rf8 Nf8–+) 34.g4 e6 (34...Rc8 35.Rc5 Rc5 36.Kd2 Qa2 37.Kd3 Qc2 38.Ke3 Rc3 39.Kd4 Qd3) 35.Rh5 e5 36.Rh4 Rc8 37.Kb2 Qb3 38.Ka1 Rb8 (38...Qa3 39.Kb1 Rb8 40.Kc2 Rb2 41.Kd1 Qa1) 39.g5 (39.Rh6 Kh6 40.Rh1 Kg7 41.Rh7 Kh7 42.g5 Qb2) 39...Qb2 0–1. Eries – Billbob, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Nd5)

4.Bb2 a5 5.b5 Bg7 6.Bg2 Bf5 7.c4 0-0 8.0-0 Nbd7 9.d4 a4 (9...c6 10.Nc3=) 10.a3 e5 (10...c6!?=) 11.de5 Ne4 12.Nd4 Be5 (12...Ne5 13.Nf5 gf5 14.Qc2+=) 13.Nf5 (13.g4 Bg4 14.Be4 Bh3+/-) 13...gf5 14.Be5 de5 15.f4 (15.Be4!? fe4 16.Qd5+/-) 15...ef4+= 16.Rf4 (better 16.Be4 fe4 17.Rf4+=) 16...Nd6? (better 16...Ndc5!? 17.Qd8 Rad8=) 17.Nc3 Nc5 18.e4 (18.Qc2 Re8+/-) 18...Nde4 (18...Nc4 19.Rf5 Qd1 20.Rd1=) 19.Ne4 fe4 20.Rg4 (better 20.Be4!? Qd1 21.Rd1+/-) 20...Kh8=+ 21.Qc2?? Now all is on e4 (21.Rf4 f5 22.Qd8 Rad8 23.Bh3-/+) 21...Qd4-+ 22.Qf2 Qa1 23.Bf1 f5 24.Rf4 (24.Rh4 Nd3 25.Qe3 Rae8-+) 24...Nd3 25.Qe3 Nf4 26.Qf4 0-1. zistambo (1700) - mahmoodreza1981 (1785), Rated Blitz tournament, lichess.org, 2014. (=1.Nf3 (A05: Reti Opening: 1 Nf3 Nf6) 1...Nf6 2.g3 g6 3.b4 d6)

4.Bb2 Na6 5.a3 Bg7 6.Bg2 c5 7.b5 Nc7 8.c4 a6 9.a4 =.

4.Bb2 Na6 5.b5 Nc5 6.Bg2 a6 7.ba6 Ra6 8.Bf6 ef6 9.0-0 =.

4.Bb2 Na6 5.Bf6 ef6 6.a3 Bg7 7.Nc3 c6 8.Bg2 Nc7 9.0-0 =.

4.Bb2 Nbd7 5.c4 h6 6.Bg2 Bg7 7.0-0 0-0 8.h3 c6 9.Nc3 =.

4.Bb2 Nbd7 5.d3 c6 6.c4 Bg7 7.Bg2 Qb6 8.a3 a5 9.Bd4 =.

4.Bb2 Nbd7 5.Bg2 e5 6.d3 c6 7.c4 Qb6 8.Qd2 a5 9.ba5 =.

4.Bb2 Bg7 5.a4 e5 6.Bg2 0-0 7.d4 e4 8.Nfd2 Qe7 9.0-0 =+ .

4.Bb2 Bg7 5.c4 Qd7 6.Bg2 0-0 7.Nc3 h6 8.0-0 Qf5 9.e4 =.

4.Bb2 Bg7 5.d3 Na6 6.b5 Nc5 7.Bg2 Na4 8.Bd4 a6 9.c4 =+.

4.Bb2 Bg7 5.d4 0-0 6.Bg2 Nbd7 7.c4 Nb6 8.Nbd2 d5 9.c5 =.

4.Nc3 d5 5.Bb2 Bg7 6.Bg2 0-0 7.0-0 Re8 8.Ne5 c6 9.d4 =+.

4.Nc3 d5 5.d4 Bg7 6.Bg2 0-0 7.Ne5 Nfd7 8.f4 Nb6 9.0-0 =.

4.Nc3 d5 5.Bg2 Nbd7 6.d4 Bg7 7.0-0 0-0 8.Bf4 c6 9.b5 =.

4.Nc3 e6 5.Bb2 Nbd7 6.Bg2 e5 7.e4 Bg7 8.0-0 0-0 9.a4 =.

4.Nc3 e6 5.d4 Bg7 6.Bg2 0-0 7.0-0 a6 8.Rb1 Nc6 9.h3 =.

4.Nc3 e6 5.Bg2 d5 6.a3 Bg7 7.0-0 Ne4 8.Bb2 0-0 9.Na4 =.

4.Nc3 Bh6 5.a3 Nbd7 6.Bg2 0-0 7.0-0 Bg7 8.Bb2 e5 9.e4 =.

4.Nc3 Bh6 5.d4 Bg7 6.Bg2 0-0 7.0-0 Nbd7 8.e4 c5 9.bc5 =.

4.Nc3 Bh6 5.Bg2 Bg7 6.Bb2 0-0 7.0-0 e5 8.a4 Re8 9.d3 =.

4.d4 a5 5.ba5 Bg7 6.Nbd2 0-0 7.Bg2 c5 8.c3 Qa5 9.Nb3 =+.

4.d4 a5 5.b5 Bg7 6.Nc3 0-0 7.Bg2 c6 8.a4 Bf5 9.Nh4 =.

4.d4 Bg4 5.Nbd2 Bg7 6.h3 Bf5 7.c4 0-0 8.Bg2 Ne4 9.Bb2 =.

4.d4 Bg4 5.Nfd2 c5 6.Bg2 Nc6 7.h3 Bc8 8.dc5 Nb4 9.cd6 =.

4.d4 Bg4 5.Bg2 Bg7 6.h3 Bf5 7.Nfd2 d5 8.g4 Bc8 9.c3 =.

4.d4 Bg4 5.h3 Bf3 6.ef3 Bg7 7.Bg2 0-0 8.c3 Nbd7 9.0-0 =.

4.d4 Bg7 5.Bb2 (5.Bg2 c5 6.c3 0-0=) 5...b6 (5...d5 6.Bg2=) 6.Bg2 Bb7 7.0-0 0-0 8.a4 Nbd7 9.Na3 a5 (9...c5 10.dc5 dc5 11.b5=) 10.b5 Nd5 11.c4 Nb4 12.Nc2 White plans d5 12...c5 13.d5?? (better 13.bc6 Nc6 14.Rb1+=) 13...Bb2-+ 14.Rb1 Bc3 15.e4 Ne5 16.Ne5 Be5 17.f4 Bg7 18.Ne3 Bc8 19.Kh1 f5 (19...Bd4 20.Qf3-+) 20.Qe2 (20.ef5 Rf5 21.Nf5 Bf5-+ (21...gf5?! 22.Re1-/+)) 20...fe4 21.Be4 e5 (21...Bh3 22.Rf3 Qc8 23.Rg1-+) 22.de6 Be6 23.Ba8 Qa8 24.Ng2 Bf5 25.Rbe1 (25.Rbd1 Re8 26.Qd2 Nd3-+) 25...Bd3 (25...Nc2!? 26.Rc1 Re8 27.Qd2-+) 26.Qe6 Kh8 27.Rf2 (27.Qd6 Bf1 28.Rf1 Rd8-+) 27...Bf5 28.Qd6 Nd3 29.Ref1 (29.Rfe2 Ne1 30.Re1-+) 29...Nf2 30.Rf2 Re8 (better 30...Rd8 31.Rd2 Rd6 32.Rd6 Bd4-+) 31.h4 Bd4 32.Rd2 Qe4 (32...Bc3 33.Rd5 Be4 34.h5-+) 33.Kh2 (33.Rd1 Kg7 34.Qc6 Qc6 35.bc6 Bc2-+) 33...h5 (better 33...Bc3 34.Rd5 Qc4-+) 34.Qb6 Bc3 (34...Be6!? 35.Qa5 Qf5 36.Rd4 cd4 37.Qb6-+) 35.Rd8 Bg7 (35...Rd8 36.Qd8 Kh7 37.b6-/+) 36.Re8 (36.Qa5 Rd8 37.Qd8 Kh7 38.Qd5-+) 36...Qe8-+ 37.Qc5 (better 37.Qa5 Qe2 38.Qe1-+) 37...Kh7?? (better 37...Qe2 38.Qg1 Qc4-+) 38.Qd5?? (38.b6 Qe2 (38...Qa4?? 39.b7+-) 39.Qe3 Qb2-/+ (worse 39...Qc4 40.b7 Qb4 41.Qa7+=)) 38...Be4 (better 38...Qe2 39.c5 Be4 40.Qe4 Qe4-+) 39.Qd2=+ Bg2 (39...Qf8!?=+) 40.Qg2= (worse 40.Kg2 Qe4 41.Kh2 Qc4-/+) 40...Qe3 41.Qc2 Bc3 42.Qc1 0-1. geochess (2155) - AsChess (2105), Rated Bullet game, lichess.org, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 d6)

4.Bg2 Qd7 5.a4 Bg7 6.Bb2 0-0 7.b5 e5 8.0-0 Re8 9.c4 =.

4.Bg2 Qd7 5.Bb2 a5 6.a3 Bg7 7.Nc3 0-0 8.b5 d5 9.e3 =.

4.Bg2 Qd7 5.Nc3 Bg7 6.Bb2 0-0 7.b5 a6 8.a4 Qf5 9.d3 =.

4.Bg2 Qd7 5.c4 Bg7 6.Nc3 0-0 7.d4 Rd8 8.Bb2 c5 9.dc5 =.

4.Bg2 e5 5.d3 Bg7 6.0-0 0-0 7.Nc3 h6 8.h3 Be6 9.Be3 =.

4.h3 a6 5.Bg2 Bg7 6.d4 Nc6 7.c3 0-0 8.0-0 e5 9.de5 =.

4.h3 c6 5.Na3 Bg7 6.Bg2 Qb6 7.Rb1 0-0 8.0-0 Ne4 9.b5 =.

4.h3 c6 5.Nc3 Bg7 6.a3 Qb6 7.Bb2 0-0 8.Bg2 e5 9.d3 =+.

4.h3 c6 5.d4 Bg7 6.Bg2 a5 7.ba5 Qa5 8.Bd2 Qf5 9.Nc3 =.

4.h3 c6 5.Bg2 Bg7 6.Bb2 Qb6 7.a3 Ne4 8.d4 Nd7 9.Nbd2 =.

4.h3 e5 5.d3 Bg7 6.Bg2 e4 7.Nd4 c5 8.Nb3 Nfd7 9.c3 =+.

4.h3 e5 5.Bg2 e4 6.Nd4 d5 7.c3 Bg7 8.d3 0-0 9.0-0 =.

4.h3 h6 5.Bb2 e5 6.Bg2 Bg7 7.c4 0-0 8.d3 Be6 9.0-0 =.

4.h3 h6 5.c4 Bg7 6.Bb2 0-0 7.Bg2 Na6 8.b5 Nc5 9.0-0 =.

4.h3 h6 5.d4 Bg7 6.Nc3 0-0 7.Bg2 e5 8.de5 de5 9.Be3 =.

4.h3 h6 5.Bg2 Bg7 6.0-0 Be6 7.Nc3 Qd7 8.Kh2 Nd5 9.Bb2 =+.

5.a3 Nbd7 6.Bg2 Bg7 7.d4 Qe7 8.de5 de5 9.c4 =+.

5.a4 e4 6.Nd4 Bg7 7.Bg2 Qe7 8.0-0 d5 9.c3 =.

5.Nc3 Bg7 6.a3 0-0 7.Bg2 e4 8.Nd4 Re8 9.0-0 =.

5.c4 Bh6 6.Bg2 0-0 7.0-0 c6 8.Nc3 Be6 9.d3 =.

5.d3 Bg7 6.Nbd2 0-0 7.Bg2 Nh5 8.Rb1 f5 9.e3 Qe7 10.0-0 Nd7 11.c4 Kh8 12.Qc2 g5 13.c5 d5 (13...a5 14.cd6 cd6 15.ba5 Ra5 16.Bc3=) 14.c6+= Nb8 (14...bc6!? 15.Qc6 Rb8+=) 15.cb7+/– Bb7 16.Qc5 Qc5 17.bc5 Nd7 18.Ng5 Rfe8 (18...c6 19.Be5! Ne5 20.Rb7 Nd3 21.Nb3+–) 19.Rfc1 (better is 19.Be5!? Be5 20.Rb7 Nc5 21.Rb5+–) 19...Bc6 20.Bh3 Bf6 21.Ngf3 Ng7 22.d4 e4 23.Ne1 Reb8 24.Bc3 Bb5 (24...Rb1!? 25.Nb1 Kg8+/–) 25.Ba5 Bd8 26.c6 Nf6 27.Bf1 a6 28.Ng2 Kg8 29.Nf4 Kf7 30.Rb3 (30.Bh3 Ke8+/–) 30...Bf1 31.Kf1 Rb5 32.Rb5 ab5 33.Nb3 Nge8 (33...Ne6 34.Ne6 Ke6 35.Nc5 Kf7 36.Nb7+/–) 34.Rc5+– Be7 35.Rb5 Nd6 36.Rd5 Nd5 37.Nd5 Ne8 38.Bc7 Nc7 39.Nc7 Rc8 40.Nd5 Rc6 41.Ne7 Ke7 42.Nc5 Rb6 43.a4 Rb1 44.Kg2 Ra1 45.h3 (45.g4!? fg4 46.Kg3 Ra2+–) 45...Ra2+/– 46.g4 f4 47.Kf1 Ra1 48.Kg2 Ra2 49.Kf1 (better is 49.ef4!? e3 50.Kf3 ef2 51.Kg2+/–) 49...Ra1= 50.Kg2 ½–½. Kivipelto (2350) – Gruenfeld (2200), Buenos Aires, 1978. (=1.Nf3 Nf6 2.g3 g6 3.b4 d6 4.Bb2 e5)

5.Bg2 e4 6.Nd4 d5 7.a3 a5 8.b5 Bg7 9.d3 =.

5.b5 a6 6.a4 e5 7.Bg2 ab5 8.ab5 Ra1 9.Ba1 =.

5.Nc3 e5 6.Bg2 Bg7 7.0-0 0-0 8.a4 Re8 9.d3 =+.

5.c4 Bg7 6.Nc3 e5 7.d4 ed4 8.Nd4 Nbd7 9.Bg2 =.

5.d3 e5 6.Bg2 Bg7 7.0-0 0-0 8.c4 Nc6 9.b5 =.

5.Bf6 ef6 6.Bg2 d5 7.a3 Bg7 8.0-0 0-0 9.d4 =.

5.a3 Bg7 6.Bg2 e5 7.d3 0-0 8.0-0 d5 9.Nd2 =+.

5.Rb1 Bg7 6.Bg2 h6 7.0-0 0-0 8.Re1 e5 9.d3 =+.

5.d4 Bg7 6.Bg2 0-0 7.0-0 e5 8.de5 de5 9.Rb1 =.

5.h3 Bg7 6.d4 0-0 7.Bg2 e5 8.de5 de5 9.Rb1 =+.

5.Bh3 Bg7 6.d4 0-0 7.0-0 c5 8.bc5 dc5 9.Bg2 =+.

5.Rb1 e4 6.Nd4 Bg7 7.Bb2 0-0 8.d3 e3 9.fe3 =+.

5.b5 a6 6.e4 ab5 7.d4 ed4 8.Qd4 Bg7 9.Bb5 –/+.

5.d3 d5 6.Rb1 a5 7.b5 d4 8.Na4 Be6 9.a3 =.

5.e4 Bg7 6.d3 0-0 7.Bg2 Nc6 8.b5 Ne7 9.a4 =.

5.Bg2 e4 6.Nd4 d5 7.Rb1 Bg7 8.f3 h5 9.fe4 =.

5.a3 Bg7 6.Bg2 0-0 7.0-0 Nc6 8.Nbd2 e5 9.c3 =.

5.Nc3 Bg7 6.Bg2 0-0 7.0-0 Nc6 8.Rb1 Bf5 9.d5 =.

5.c4 Qd7 6.Nc3 Bg7 7.Bg2 0-0 8.0-0 Nc6 9.Rb1 =.

5.Bg2 Bg7 6.c4 0-0 7.0-0 d5 8.cd5 Nd5 9.a3 =.

5.h3 Bg7 6.Bg2 0-0 7.0-0 Bf5 8.Nc3 Nc6 9.Rb1 =.

5.c3 Bg7 6.Bg2 0-0 7.0-0 h6 8.Qd3 Bf5 9.Qe3 =.

5.Nfd2 Nd2 6.Qd2 Bg7 7.c3 0-0 8.Bg2 Nd7 9.0-0 =.

5.Qd3 d5 6.Nbd2 e5 7.de5 Bb4 8.Bg2 Nc6 9.0-0 =.

5.e3 Bg7 6.Bd3 Nf6 7.e4 0-0 8.c3 h6 9.0-0 =.

5.Bg2 Bg7 6.Qd3 d5 7.Nc3 Nc6 8.Ne5 Ne5 9.de5 =+.

5.Nc3 d5 6.a3 Bg7 7.Bg2 0-0 8.0-0 a5 9.b5 =.

5.c4 d5 6.Qa4 Bd7 7.b5 dc4 8.Qc4 c6 9.Nc3 =.

5.Nbd2 Bg7 6.e4 0-0 7.c3 e5 8.de5 Ng4 9.ed6 =+.

5.Bg2 Bg7 6.0-0 0-0 7.c4 c5 8.bc5 dc5 9.Ba3 =.

5.h3 Bg7 6.Bg2 0-0 7.0-0 Nbd7 8.Nc3 e5 9.de5 =.

5.0-0 a5 6.b5 cb5 7.Bb2 Bg7 8.a3 0-0 9.Nc3 =+.

5.Bb2 Bg7 6.0-0 Na6 7.a3 0-0 8.c4 Nc7 9.Nc3 =.

5.Nc3 Bg7 6.Rb1 0-0 7.0-0 d5 8.d3 d4 9.Na4 =.

5.c4 Bg7 6.0-0 Nd5 7.d4 Nb4 8.Bb2 0-0 9.Qd2 =+.

5.d4 a5 6.b5 cb5 7.a3 Nc6 8.d5 Na7 9.Nc3 =.

5.a3 Bg7 6.Nc3 0-0 7.0-0 e5 8.d4 e4 9.Ng5 =.

5.a4 Bg7 6.Bb2 0-0 7.0-0 c6 8.c4 e5 9.b5 =.

5.Bb2 Bg7 6.c4 0-0 7.0-0 c6 8.a3 e5 9.d3 =.

5.Nc3 Bg7 6.Bb2 0-0 7.0-0 c6 8.a4 Na6 9.b5 =.

5.c4 h6 6.0-0 Bg7 7.Nc3 0-0 8.d4 Qc8 9.e4 =.

5.0-0 c6 6.c4 Bg7 7.Bb2 0-0 8.Nc3 h6 9.b5 =.

5.Bb2 e5 6.c4 Bg7 7.d4 Qe7 8.0-0 e4 9.Ne1 =+.

5.Nc3 e5 6.0-0 d5 7.Rb1 c6 8.a3 Bg7 9.d4 =.

5.c4 Bg7 6.Bb2 0-0 7.d3 c6 8.0-0 e5 9.Nc3 =.

5.d4 Bg7 6.0-0 0-0 7.c4 c5 8.bc5 dc5 9.Bb2 =.

5.Bb2 e5 6.d3 Bg7 7.Bg2 0-0 8.0-0 Qe7 9.c4 =.

5.c4 Bg7 6.Bb2 c6 7.Bg2 Qb6 8.a3 a5 9.Bd4 =.

5.d3 Bg7 6.Bb2 c6 7.Bg2 Qb6 8.c3 a5 9.Qb3 =.

5.d4 Bg7 6.Bg2 h6 7.0-0 0-0 8.c4 c5 9.bc5 =.

5.Bg2 Bg7 6.0-0 0-0 7.d4 e5 8.c4 ed4 9.b5 =+.

4.Ne5 Bb4 5.Bg2 Nc6 6.Nd3 Be7 7.c4 d5 8.cd5 Nd5 9.Bb2 0-0 10.Qb3 Nb6 11.Qc3 f6 12.0-0 Be6 13.Nf4 (13.Bc6 bc6 14.Qc6 Bd5+=) 13...Bf7 (13...Nd5!? 14.Ne6 Nc3 15.Nd8 Ne2 16.Kh1 Bd8 17.Bd5 Rf7+=) 14.Bc6+= bc6 15.Qc6 Nc4 16.Bc3 Re8 17.d3 Ne5 18.Be5 fe5 19.Ne6 Qc8 (19...Qd6!? 20.Qd6 Bd6+= (20...cd6? 21.Nc7+–)) 20.Nc7+/– Rb8 21.Rc1 Rd8 22.Nd2 Qg4 23.Nf3 Rb2 24.h3 (24.Ne5? Qe2 25.Ng4 Qg4–+) 24...Qh3 25.Ne5 Re2 26.Re1 (26.Nf7 Rd3 27.Rc3 Rf2 28.Kf2 Qg3 29.Ke2 Qe3 30.Kf1 Qf4 31.Kg1 Qe3 32.Kf1 Qf4 33.Kg1 Qe3 34.Kf1=) 26...Rd6 27.Qa8 Rd8 28.Qa7 (28.Re2 Ra8 29.Nf7 Kf7 30.Na8 Bc5–/+) 28...Rb2?? (28...Re5 29.Re5 Bf6 30.d4 Be5 31.de5+–) 29.Nf7 Rd3 30.Re3 Re3 31.Qe3 Kf7 32.Qd4 Rc2 33.Qd5 Kg7 34.Ne6 (34.Ne6 Kh6 35.Qe5+–) 1–0. Poleschi,Ricardo D – Rossell,Everest, SIMUL, 1999. (=1.Nf3 Nf6 2.g3 g6 3.b4 e5)

4.Ne5 Nc6 5.Nc6+= dc6 6.Bg2 (6.a3 a5+=) 6...Bb4= 7.0-0 Bg4 8.Bb2 Qe7 9.Re1 (9.h3 Be6+=) 9...0-0-0= 10.a3 Bc5 11.d4 (11.h3 Bf5=) 11...Rhe8 (11...h5 12.h3 Be6 13.e4=) 12.f3 (12.f3 Qe3 13.Kh1 Bd4 14.Bd4 Rd4 15.Qc1–+). gbsr (2210) – fifteenminutesofgame (2170), net–chess.com, 2003.

4.a3 a5 5.b5 c6 6.Nc3 Bg7 7.Rb1 d5 8.e3 0-0 9.Bg2 Re8 10.d4 Nbd7 11.Na4 Ne4 12.Nd2 Nd6 13.c4 cb5 14.cb5 Nb6 15.Nb6 Qb6 16.a4 Qd8 17.0-0 b6 18.Ba3 Bb7 19.Rc1 Ne4 20.Be4 de4 21.Qg4 e5 22.Nc4 (22.Ne4? f5 (22...ed4 23.Nd6 Re7 24.ed4+/–) 23.Qe2 Qd5–+) 22...Bd5 23.Rfd1 (better is 23.Ne5!? Be5 24.de5 Re5 25.Rfd1+=) 23...ed4–/+ 24.ed4 Bc4 25.Rc4 Rc8 (25...Qd5 26.Qe2+=) 26.Rc6 (better is 26.Rc8 Qc8 27.Qc8 Rc8 28.d5+=) 26...e3?? (26...Rc6 27.bc6 Qd5= (27...Bd4 28.Bb2 Bf2 29.Kf2+–)) 27.fe3 (better is 27.Be7! ef2 28.Kf2 Rc6 29.Bd8 Rc2 30.Kg1 Rd8 31.d5+/–) 27...Rc6+= 28.bc6 Re3 29.Qd7 Qd7 30.cd7 Bf6 31.Bd6 Rc3?? (31...Re4 32.Rc1 Kg7+–) 32.Re1 Bd4 (32...h5 33.Be7 Bd4 34.Kh1+–) 33.Kg2 (33.Kg2 h5 34.d8Q Kh7 35.Qf8 Rc2 36.Kh3 Rf2 37.Bf4 g5 38.Qf7 Bg7 39.Qf5 Kg8 40.Re8 Bf8 41.Qg6 Kh8 42.Rf8) 1–0. Stadler,Tereza (2115) – Chaves,Joara, Malta ol (Women), 1980. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.a3 c5 5.c3 cb4 6.cb4 a5 7.Bb2 (7.b5 d5=) 7...Bg7 (7...ab4 8.Bg2=+) 8.e3 Nh5 (better 8...0-0=) 9.Be2?? (better 9.Bg7 Ng7 10.ba5 Qa5 11.Nc3+=) 9...Bb2–+ 10.Ra2 Qf6?? (better 10...Bg7!? 11.b5–+) 11.0-0?? (11.Qc2!? 0-0 12.Rb2 ab4 13.Rb4+=) 11...b6 (better 11...Be5!? 12.Qc2 Nc6–+) 12.d4 Bd4 13.ed4 (13.Nd4 ab4 14.Rc2=+) 13...g5 (13...ab4 14.Ne5–/+) 14.Bc4 (14.Nfd2!? Ng7 15.ba5 ba5 16.Ne4=) 14...d5=+ 15.Bb3 Nd7 16.Nbd2 (16.Ne5 Ng7=) 16...g4 17.Ne5 Ne5 18.de5 Qe5 19.Re1 (19.ba5!? Ra5 20.Qg4=+) 19...Qd4–+ 20.Nf1? (better 20.Ba4 Bd7 21.Bd7 Kd7 22.ba5 ba5 23.Qe2–+) 20...Qf6?? (better 20...Qd1 21.Rd1 Nf6–+) 21.Bd5?? (better 21.Qd5! Qf3 22.Ba4 Ke7 23.Qg5 f6 24.Qe3 Qe3 25.Ne3 ab4 26.ab4–/+) 21...Ra7+– 22.Bc6 (22.Qg4 Ng7+=) 22...Kf8 (22...Bd7!? 23.Bd7 Rd7 24.Qg4 Qg6+=) 23.b5 e5 24.Rd2 Ng7?? (24...Kg7 25.Ne3+–) 25.Kg2 (better 25.Rd8 Ne8 26.Re8 Kg7 27.Rc8+–) 25...Ne6+= 26.Ne3 Nd4 27.Nd5 (better 27.Ng4!? Bg4 28.Qg4+=) 27...Qf3=+ 28.Qf3 Nf3 (worse 28...gf3 29.Kh1 Bb7 30.Bb7 Rb7 31.Re5 Nb5 32.Nf6+–) 29.Red1 Nd2 30.Rd2 h5 31.Nf6? (better 31.Nb6!? Be6 32.Re2–/+) 31...Rh6 (31...Be6 32.Rd8 Kg7 33.Rh8 Kh8 34.Nh5–+) 32.Ne4 (32.Rd8 Ke7 33.Rc8 Rf6 34.Re8 Kd6 35.Rd8 Kc5 36.Rd5 Kc4 37.Re5 Kb3 38.Rh5 Re7–+) 32...Bf5 33.Nd6 (33.Rd8 Kg7 34.Nd6 Be6–+) 33...Be6 34.Ne4 f5 (34...Ke7 35.Nc3–+) 35.Nd6 (35.Rd8 Kg7 36.Nc3–+) 35...h4 36.a4 e4 37.gh4 Rh4 (37...Rah7 38.Bd5 Bd7 39.Nc4–+) 38.Nb7 (38.Bd5 Ke7 39.Nc4 Rd7 40.Be6 Rd2 (40...Ke6?! 41.Rd7 Kd7 42.Nb6 Kd6 43.Nc4 Kc5 44.Na5–+) 41.Nd2 Ke6–+) 38...Kg7 39.Nd8 Bb3 40.Rd6 Ba4 41.Ne6 Kf7 (41...Kh7!? 42.Ng5 Kh8 43.Rf6–+) 42.Ng5 Ke7 43.Re6 Kd8?? (better 43...Kf8 44.Kg3 Rh5 45.Rf6 Kg8 46.Rf5 Bd1 47.Be4 a4–+) 44.Re8= Kc7 45.Ne6?? (better 45.Re7 Kb8 46.Re8 Kc7 47.Re7 Kb8 48.Re8 Kc7=) 45...Kd6–+ 46.Nd4 Bd1 (better 46...Rh5 47.Rd8 Kc5 48.Rd5 Kb4 49.Nf5 Bb3–+) 47.Nf5+– Kc5 48.Nh4 Bc2 49.Re5 Kd6 (49...Kb4 50.Nf5+–) 50.Rg5 a4 (50...e3 51.fe3 a4+–) 51.Nf5 (51.Rg4?! a3 52.Nf5 Ke5+–) 51...Kc5 (51...Ke6 52.Nd4 Kf6 53.Rf5 Kg6 54.Be8 Kh6 55.Nc2 Kg7+–) 52.Ne3 Kb4 53.Nc2 Kb3 54.Be4 a3 55.Na3! Ra3 (55...Ra3 56.Bd5 Double attack; 55...Ka3 56.Rg4 Combination) 56.Rg4 Kb2 (56...Kb4 57.Bc6 Kc5 58.h4+–) 57.h3 (57.Rg6 Ra5 58.Rb6 Kc3+–) 57...Rb3 (57...Ra5 58.Bc6 Kc3 59.Rg7+–) 58.Bc6 Kc2 59.h4 Rd3 (59...Rc3 60.Ra4+–) 60.h5 (60.Be4 Kc3 61.Bd3 Kd3 62.h5 Kd2 63.h6 Kc2 64.h7 Kd2 65.h8Q Kd3 66.Qh3 Kc2 67.Rc4 Kb2 68.Qc3 Ka2 69.Ra4 Kb1 70.Ra1) 60...Kd2 (60...Rd6 61.Rg6 Rd8 62.Be4 Kb3 63.h6+–) 61.h6 Ke1 (61...Rd6 62.h7 Rh6+–) 62.h7 Rd8 63.Rg8 Ra8 64.Ba8 (64.Ba8 Kd2 65.Rd8 Kc2 66.h8Q Kb3 67.Bd5 Kb4 68.Qd4 Kb5 69.Qc4 Ka5 70.Ra8; 64.Ra8 Kd2 65.Ra2 Kc3 66.h8Q Kb3 67.Bd5 Kb4 68.Qd4 Kb5 69.Qc4) 1–0. pieeater – Eries, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.a3 c5 5.bc5 Bc5 6.d4 Bb6 7.Bg5 d5 8.h4 0-0 (8...h6 9.Bd2=) 9.c3 Nbd7 10.e3 (10.h5 Qc7 11.Bh6 Re8+=) 10...Kg7= 11.Bb5 Qc7 (11...h6 12.Bf4=) 12.Bf6 (better 12.h5!? Nh5 13.g4+–) 12...Nf6=+ 13.Ne5 a6 (13...Ne4 14.h5–/+) 14.Bd3=+ Ng8 (14...Ba5 15.Qb3=+) 15.h5= Ba5 Attacking the backward pawn on c3 (15...g5 16.Bc2=) 16.Qd2 (16.hg6!? hg6 17.Qd2+=) 16...g5= 17.e4 h6 (17...f6 18.Nf3=+) 18.f4= Nf6?? (better 18...g4=) 19.fg5+– Ng8? (better 19...Ne4 20.Be4 de4 21.gh6 Kh7+–) 20.gh6 Nh6 21.g4 (better 21.Qg5 Kh7 22.ed5 Nf5 23.de6 fe6 24.Qd2+–) 21...f6 22.Ng6?? (22.Rf1 Qd8 23.Ng6+–) 22...Rg8?? (better 22...Qg3!? 23.Kf1 Qf3 24.Kg1 Rf7=) 23.Nf4 (better 23.e5!? f5 24.g5 Nf7+–) 23...Ng4 (23...Qc6 24.e5 fe5 25.Ng6+– (worse 25.de5 d4 26.Rf1 dc3+=)) 24.Rg1+– Kf7 (better 24...f5 25.Ne6 Be6 26.ef5 Kf6 27.fe6 Rae8+–) 25.Rg3?? (better 25.ed5!? f5 26.Rf1+–) 25...b5 (better 25...Ne5!? 26.Ng6 Nd3 27.Qd3 de4=+) 26.ed5 Nh6? (better 26...ed5 27.a4 ba4 28.Bg6 Kg7 29.Ra4 Rb8+–) 27.Rg8 Ng8 28.Bg6 Ke7 29.Qe3 (better 29.de6!? Bb7 30.a4+–) 29...e5+– 30.Nd3?? (better 30.Ra2 Nh6 31.Re2+–) 30...Bc3–+ 31.Nc3 Qc3 32.Kf2 Qa1 33.Nc1?? (33.de5 Kf8 34.Qc5 Kg7 35.Qc7 Kh6 36.e6 Qd4 37.Kf3 Qd5 38.Be4 Qh5 39.Kf2 Qh4 40.Ke3 Qg5 41.Kf3–/+) 33...Qd4 34.Bh7 (34.Qd4 ed4 35.Nb3 Kd6 36.Nd4 Ne7–+) 34...Qh4 (34...Qe3 35.Ke3 Bg4 36.Bg6–+) 35.Kf1 (35.Kg2 Qh5 36.Bg8 Qg6 37.Qg3 Qc2 38.Kf3 Kf8–+) 35...Bh3 36.Ke2 (36.Kg1 Rc8 37.Ne2 Qh5–+) 36...Qh5 37.Kf2 (37.Ke1 Qh7 38.Qc5 Kf7 39.Qc7 Kg6 40.Qc2 Kg7 41.Qh7 Kh7–+) 37...Qh7 38.Qc5 Kf7 39.d6 Qf5 40.Kg3 Qg4 (40...Ne7! 41.Qc8 Rc8 42.Ne2 Qg4 43.Kf2 Rc2 44.de7 Re2) 41.Kf2–+ Qg2 42.Ke1 Qf1 (better 42...Rc8 43.Qa7 Kf8 44.Ne2 Qf1 45.Kd2–+) 43.Kd2 Qg2 44.Ke1 Qe4 (better 44...Rc8 45.Qa7 Kf8 46.Qc7–+) 45.Kd2 Qf4 (45...Rc8 46.Qa7 Kf8 47.Nd3–+) 46.Ke1 Qe4 47.Kd2 Qf4 48.Ke1 Qf1 49.Kd2 Qf4 (49...Rc8!? 50.Qd5 Be6 51.Qb7 Kf8 52.Nd3–+) 50.Ke1 Qe4 (50...Rc8 51.Qa7 Kf8 52.Nd3 Qg3 53.Kd2–+) 51.Kd2 Qf4 (better 51...Rc8 52.Qa7 Kf8 53.Nd3–+) 52.Kc2?? (52.Ke1 Rc8 53.Qa7 Kf8 54.Nd3 Qf1 55.Kd2–+) 52...Bf5 53.Kb2 Qd2 54.Ka1 Rc8 55.Nb3 (55.Qd5 Qd5 56.Ne2 Qd1 57.Nc1 Rc1 58.Kb2 Qc2) 55...Rc5 (55...Qd1 56.Kb2 Rc5 57.a4 b4 58.Nc1 Qc1 59.Kb3 Qb1) 56.Nc5 Qc3 (56...Qc1 57.Ka2 Qb1) 57.Ka2 Qc5 (57...Qc2 58.Ka1 Qb1) 58.Kb3 (58.a4 b4 59.Kb2 Qc3 60.Ka2 Qa3) 58...Be6 (58...Qc4 59.Kb2 Qc2 60.Ka1 Qb1) 59.Kb2 Qd6 (59...Qd4 60.Kb1 Bf5 61.Ka2 Qd2 62.Ka1 Qc1 63.Ka2 Be6) 60.Kc2 Qa3 61.Kd2 (61.Kd1 Bg4 62.Kd2 Qb2 63.Kd3 f5 64.Ke3 Qd4) 61...b4 (61...Qb2 62.Ke3 f5 63.Kf3 f4 64.Ke4 Qe2) 62.Ke2 b3 (62...Bg4 63.Kf2 Qf3 64.Kg1 Bh3 65.Kh2 Qg2) 63.Kf2 (63.Kd2 Qb2 64.Kd3 a5 65.Ke3 Bg4 66.Ke4 Qd4) 63...b2 64.Ke2 b1Q 65.Kd2 (65.Kf2 Qc2 66.Ke1 Qac1) 65...Qad3 0–1. Billbob – Eries, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.a3 d5 5.e3 Bd6 6.c4 0-0 7.c5 Be7 8.Bb2 a5 9.h4 ab4 10.ab4 Ra1 11.Ba1 b6 12.Qb3 bc5 13.bc5 Nbd7 14.d4 c6 15.Nbd2 e5 16.Ne5 Ne5 17.de5 Nd7 18.Bd4 Nc5 19.Qc3 Qb6 20.f3 Na4 21.Qc2 Nc5 22.Qc3 Bf5 23.h5 Ra8 24.e4 de4 25.g4 Be6 26.hg6 fg6 27.Bc4 Bd5 28.fe4 Ne4 29.Bb6 Nc3 30.Rh3 Bc4 31.Nc4 Nd5 32.Ba5 Ra5 33.Na5 Bb4 34.Kf2 Ba5 35.Kf3 Kf7 36.Rh7 Ke6 37.Ke4 Bc3 38.Rh8 Ne7 39.Rh7 c5 40.Rh8 Be5 41.Ra8 g5 42.Ra5 Bd6 43.Ra8 Nc6 44.Rc8 Kd7 45.Rg8 Bf4 46.Rg7 Kd6 47.Rg6 Kc7 48.Re6 c4 49.Kd5 Na5 50.Ra6 Bd2 51.Kd4 Kb7 52.Rf6 c3 53.Rf7 Kc8 54.Kd3 Nc6 55.Rg7 Ne5 56.Kc2 Ng4 0–1. GnuChess 4.14 – Arasan 5.4, Boissel, BB–17, K6–2 333, 8 HT (France, 60), 2000.

4.a3 Bg7 5.Bb2 0-0 6.d3 b5 7.Bg2 Bb7 8.0-0 a5 9.Nc3 c6 10.e4 a4 (10...Na6 11.e5 Ne8 12.Qd2=) 11.Re1 d6 12.Ne2 e5 13.d4 Ne4 14.de5 d5 15.Bd4 Nd7 16.Nf4 Qc7 Will e5 fall? (better 16...Qe7!?=) 17.e6+– Ne5 (17...Ndf6!? 18.Ne5 Rae8 19.ef7 Rf7 20.Nf7 Qf7+–) 18.ef7 Rf7 19.Ne6 Qd6 20.Ng7 Nf3 21.Bf3 Nf2? (21...Ng5 22.Bg2 Rg7+–) 22.Kf2 (22.Bf2?! Qf6+–) 22...Raf8 23.Re8 Rg7 24.Rf8 Kf8 (24...Qf8 25.Bg7 Qg7 26.Qe1+–) 25.Bg7 (better 25.Bc5 Qc5 26.bc5+–) 25...Kg7 26.Qd4 Kf7 (26...Qf6 27.c3+–) 27.Re1 (27.Re1 Qd8 28.Qa7+–) 1–0. ffrancis – KMiroslav, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.a3 Bg7 5.Bb2 0-0 6.Bg2 c6 7.c4 d5 8.cd5 ed5 9.0-0 Bf5 10.d3 Re8 11.Re1 Nfd7 12.Bg7 Kg7 13.Qc2 Qf6 14.Nbd2 (14.Nc3 a5=) 14...Kg8 (better is 14...Re2! 15.h3 a5–/+) 15.Rad1 Ne5 16.Ne5 Re5 17.e4 de4 18.de4 Bc8 19.Nc4 Re6 20.e5 Qe7 21.Qd3 Nd7 22.f4 Qd8 23.Nd6 Re7 24.Nc8 Rc8 25.Re4 Qc7 26.Rd4 Nf8 27.Rd6 Ree8 28.Bh3 Rb8 29.Qd4 Qb6 30.Qb6 ab6 31.b5! Ra8 32.bc6 bc6 33.R1d3 Reb8 34.Rc6 b5 35.Rc5 b4 36.ab4 Rb4 37.Rdc3 Rbb8 38.Rc2 Rd8 39.Rc7 1–0. Batres Bianchi,Luis Carlos – Hasler,Ueli, CiF, 2000. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.Bb2 Bg7 5.Bg2 0-0 6.0-0 d5 7.d3 b5 8.a4+= ba4 9.Nc3 Qd6 10.Ra4 Bd7 11.b5 c5 Black prepares the advance d4 12.Nd2 Na6?? (better 12...Ne8=) 13.Ra6+– (13.ba6?! Ba4 14.Na4 Rac8+–) 13...Qc7 (13...Qe7 14.Ra5+–) 14.Qa1 d4 (14...Rfb8 15.Nd5 ed5 16.Bf6 (worse 16.Rf6 Be6+–) 16...Bf6 17.Rf6+–) 15.b6 ab6 (15...Qe5 16.Ba8 Ra8 17.Ra7+–) 16.Ba8 dc3 17.Bc3 Nh5 18.Bg7 Ng7 19.Rb1 Nf5 (19...Rb8 20.Ra7 Qc8 21.Bg2+–) 20.Ne4 f6 1–0. marekt – KMiroslav, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.Bb2 Bg7 5.Bg2 d5 6.0-0 0-0 7.d4 Ne4 8.Nbd2 Nd6 9.c3 Nd7 10.Qc2 b6 11.Rfe1 c5 12.dc5 bc5 13.bc5 Nc5 14.Ba3 (14.c4!? Bb2 15.Qb2 dc4 16.Qd4+=) 14...Qc7=+ 15.Rab1 Bd7 (15...Ba6 16.Nd4–/+) 16.Rec1 (16.c4!? Ba4 17.Qc1=) 16...Ba4 17.Nb3 Nce4 The pressure on the isolated pawn grows 18.Nfd4 Rfc8 19.Bd6 Nd6 20.Qd3 Bc6 (20...Rab8 21.e3–/+) 21.f3 (21.Nc6 Qc6 22.Nd2 Nc4= (22...Bc3? 23.Rb3+–)) 21...a5 22.Nc5? (22.e4 Bb7=+) 22...Nc4 (better 22...Qa7!? 23.Ncb3 Bb5–+) 23.f4 a4 24.e4 Na3 25.Rb2? (25.Rb4 Bf8 26.Na6 Qa5–+) 25...Be8 (better 25...Qa7 26.Nce6 fe6–+) 26.Nce6–/+ fe6 27.Ne6 Qa7 28.Kf1? (28.Kh1 Bb5 29.Rb5 Nb5 30.Qb5 de4 31.Ng7 Rab8 32.Qd5 Kg7 33.Qe4 Re8=) 28...de4 (28...Nc4!? 29.Rf2 Ne3 30.Ke2–+) 29.Be4–/+ Qa6 (29...Rab8 30.Rb8 Qb8 31.Ng7 Qb2 32.Ne8 Qc1 33.Kg2 Qc3+– (33...Rc3?? 34.Qd8 Rc2 35.Kh3 Qf1 36.Kg4 Qe2 37.Kg5 Rc5 38.Kf6 Qb2 39.Ke7 Re5 40.fe5 Qe5 41.Kd7+–)) 30.Ng7 Qd3 31.Bd3 Kg7 32.Rb7 Bf7 33.c4 Rc5?? (better 33...Kg8 34.c5 Ba2–/+) 34.Rc3+– Kg8 35.Ra3 Bc4 36.Bc4 Rc4 37.Re3 Rc1 38.Kf2 Rc2 39.Re2 Re2 (39...Rac8 40.Rd7+–) 40.Ke2+– a3 41.Kd2 Ra4 42.Re7 Ra6 43.Re4 (43.Kc3 Rb6 44.Ra7 Rb2 45.Ra3 Rh2+–) 43...Kf7 (43...Rb6!? 44.Rc4 Kf7+–) 44.Kc3+– Kf6 45.Kb3 Kf5 46.Ra4 Rb6 47.Ka3 Kg4 48.Rd4 Kh3 49.Rd2 Rb8 50.Ka4 Ra8 51.Kb3 Rb8 52.Kc2 Ra8 53.Kb1 Rb8 54.Rb2 Ra8 55.Rf2 h5 56.Kb2 Rb8 57.Kc3 Ra8 58.Kd4 Ra5 59.Kc4 Ra8 60.Kd5 Kg4 61.Ke6 Ra6 62.Kf7 Kf5 63.Re2 Ra7? (63...h4 64.a3+–) 64.Kg8 (better 64.Re7 Ra3 65.Re5 Kg4 66.Kg6 Ra6 67.Kf7 Ra7 68.Ke6 Ra6 69.Ke7 Ra7 70.Ke8 Ra8 71.Kd7 Ra7 72.Kc8+–) 64...Kf6 (64...h4!?+–) 65.Rb2 Ra8 ½–½. stampyshortlegs – double_bishops, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.b5 a6 5.c4 Bb4 6.Qa4 Bc5 7.d4 Bd6 8.Nc3 ab5?? (better is 8...b6+=) 9.Qa8+– (9.Qa8 Bb4 10.Bd2 (10.Qb8?! Bc3 11.Kd1 Ba1=) 10...Bc3 11.Bc3+– (11.Qb8?! Ba1 12.cb5 d5=)) 1–0. Ramponelli,Roberto (1750) – Bryant,Barry, CFriend AP–2004–Q–00008 email, 2004. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.b5 c5 5.Bg2 Bg7 6.Bb2 a6 7.ba6 Na6 8.Na3 Nc7 9.0-0 0-0 10.d3 Rb8 11.Nc4 b5 12.Nd6 Nce8 13.Be5 Rb6 14.Nc8 Qc8 15.Qd2 d6 16.Bb2 Nc7 17.Rfb1 Qb8 18.Qf4 Ncd5 19.Qh4 c4 20.e4 (20.dc4? bc4 21.Nd2 c3 22.Bc3 Nc3 23.Rb6 Qb6–+) 20...Nb4 21.Bf6 Bf6 22.Qf6 Nc2 23.dc4 Na1 24.c5 dc5 25.Ra1 e5 26.Qh4 f6 27.Qh6 c4 28.h4 c3 29.Ne1 b4 30.Bf1 Qc7 31.Rc1 Ra8 32.Rc2 Qf7 33.Qe3 Rd6 (better is 33...Rb7!? 34.Qc5 Qc7 35.Qd5 Kg7+=) 34.Qc5+/– Rd4 35.Nf3 Re4? (better is 35...Qf8 36.Bc4 Kh8 37.Qf8 Rf8 38.Nd4 ed4+/–) 36.Qc6+– Rg4 37.Qa8 Kg7 38.Qc8 Rg3 39.fg3 e4 40.Nd4 Qa7 41.Qc7! Qc7 42.Ne6 Kf7 43.Nc7 h5 44.Bc4 Kg7 45.Nd5 g5 46.Nb4 g4 47.Rc3 f5 48.a4 e3 49.Nd3 e2 50.a5 f4 51.a6 f3 52.a7 f2 53.Kf2 e1Q 54.Ke1 Kh6 55.a8Q Kg7 56.Qg8 Kf6 57.Qf7 1–0. Bielmeier,Ludwig (2055) – Ammerl,Christian, Deggendorf op 2nd, 2008. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.c3 b6 5.Bg2 Bb7 (5...Bg7 6.0-0=) 6.0-0 Bg7 7.d4 0-0 8.a4 (8.Nbd2 d5=) 8...d6 (8...Re8 9.Bb2=) 9.a5 (9.Nbd2 Nbd7=) 9...c5 10.bc5 (10.ab6 ab6 11.Ra8 Ba8=) 10...bc5 11.Nbd2 (11.Na3 cd4 12.cd4 Nc6=+) 11...Qc7 (11...Na6 12.Ba3=) 12.Re1 (12.dc5 dc5 13.Rb1 Nc6=) 12...Rd8 (12...Nbd7 13.a6 Bc6 14.e4=+) 13.e4 d5 (13...Nbd7 14.a6 Bc6 15.Bb2=+) 14.e5= Ne4 15.Bb2 Nd2 (15...Nd7 16.a6 Nd2 17.ab7 Nf3 18.Qf3 Qb7 19.Ba3=) 16.Nd2 (16.Qd2 Nd7+=) 16...Nd7 (16...Nc6 17.a6 Bc8 18.Nf3=) 17.Nf1 (17.Nb3 Rab8=) 17...Rab8=+ 18.h4 (18.Qd2 Ba6=+) 18...Bc6 19.Bc1 Rb5 The isolani on a5 becomes a target 20.Bg5 Rdb8 21.Qd2 (21.h5 h6 22.Bd2 g5=+) 21...Ra5 (21...Rb2 22.Qf4–/+) 22.Nh2 (22.h5 gh5 23.Bf3 Ra1 24.Ra1 Qb6=+) 22...Ra1 (22...h5 23.Ra5 Qa5 24.Nf3–/+) 23.Ra1 a5 (23...h5 24.Qa2–/+) 24.Ng4=+ a4 25.h5 (25.Bh6 Bh6 26.Nh6 Kf8=+) 25...Qb6 (25...gh5?! 26.Nh6 Bh6 27.Bh6=+) 26.Qf4? (better 26.Nh6 Bh6 27.Bh6–/+) 26...Qb2–+ 27.Rc1 (27.Rf1 Bb5 28.Rc1 a3 29.Nf6 Bf6 30.Bf6 Kf8 (30...Nf6 31.ef6 Bd3 32.Bf1+–) 31.Qh6 Ke8–+) 27...a3 28.Kh2 Ra8 (better 28...cd4!? 29.Nf6 Nf6 30.ef6–+) 29.Bf6 (29.Nf6 Nf6 30.ef6–+) 29...Qb8 (better 29...a2!? 30.Nh6 Kf8–+) 30.hg6 (30.Bg7 Kg7 31.Qh6 Kh8 32.c4–+) 30...hg6 (30...fg6!? 31.Bg7 Kg7 32.Qh6 Kh8–+) 31.Bg7=+ Kg7 32.Qh6 Kg8 33.Nf6? (better 33.c4 a2 34.cd5 Bd5 35.Bd5 ed5 36.e6 fe6 37.Qg6 Kf8 38.Qe6=) 33...Nf6–+ 34.ef6 Qf8 35.Qe3 (35.Qd2 Qd8 36.Qg5 a2–+) 35...a2 (35...cd4 36.cd4 a2 37.Ra1–+) 36.Ra1 cd4 37.cd4 Bb5 38.Bf3 Ra3 39.Qf4 Bd3 40.Kg2 (40.Qc1 Ra8–+) 40...Bb1 41.Qh4 (41.Qd2–+) 41...Rf3 42.Kf3 Qa3 43.Kg2 Qc1 44.Qf4 Be4 (better 44...Qf4 45.gf4 Be4 46.Kf1 Bd3 47.Ke1 Bb1=) 45.Qe4+– Qa1 (45...de4?? 46.Rc1 g5 47.Ra1+–) 46.Qf4 Qf1 (46...Qg1 47.Kg1 a1Q 48.Kg2+=) 47.Kf1 a1Q 48.Kg2 Qa8 49.Kf3 (better 49.Qh6 Qf8 50.Qf8 Kf8 51.Kh3+–) 49...Qd8?? (better 49...Qa3 50.Kg4 Qd3=) 50.Kg4+– Kh7? (50...Kf8 51.Qh6 Ke8+–) 51.Kg5 Kg8 (51...Qf8 52.Qh4 Kg8 53.g4+–) 52.Qh4 Qf8 53.Qh1 Qc8 (53...e5 54.de5 d4+–) 54.Qh6 (better 54.g4+–) 54...Qf8+– 55.Qf8 Kf8 56.g4 Ke8?? (better 56...Kg8+–) 57.f4+– Kf8 58.f5 gf5 (58...ef5 59.gf5 gf5 60.Kf5+–) 59.gf5 ef5 60.Kf5 Ke8 61.Ke5 Kd8 (61...Kd7 62.Kf4 Ke8+–) 62.Kd6 Ke8 63.Kc7 (63.Kc7 Kf8 64.Kd7+–) 1–0. Czebe,Attila (2475) – Kreisl,Robert (2440), Dunajska Streda GM, 2017. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.Bg2 Bb4 5.Bb2 Bf8 6.0-0 Bg7 7.d3 d5 8.Nbd2 c5 9.e4 0-0 10.e5 Nfd7 11.Qe2 d4 12.Ne4 (12.c3!? dc3 13.Bc3=+) 12...Nc6–/+ (12...Be5?! 13.Ne5 Ne5 14.Nc5=) 13.Nd6 (13.Nfd2!? Be5 14.Nb3–/+) 13...Nde5–+ 14.Nc8 Nf3 15.Qf3 Qc8 16.c3? (better 16.Bc1–+) 16...dc3 17.Ba3 Na5 (17...c2 18.Rac1 Nd4 19.Qe4–+) 18.Rfc1 c2! 19.d4 (19.Rc2 Ba1 Discovered attack (19...Ba1 Deflection)) 19...Bd4 20.Rc2 (20.Qe2 Qc7 21.Qc2 Ba1 22.Ra1 Rac8–+) 20...Ba1 21.Bb2 (21.Rc5 Nc6 22.Rc1–+) 21...Bb2 22.Rb2 b6 (22...Rd8 23.h3 Qc7 24.Kh2–+) 23.h4 (23.Qa8 Qa8 24.Ba8 Ra8–+) 23...Qd7 24.h5 Rfd8 25.h6 (25.Rb1 Rac8–+) 25...Qd1 26.Qd1 Rd1 27.Kh2 Rad8 28.Re2 (28.a4 Ra1–+) 28...R8d2 29.Rd2 Rd2 30.Kh3 Rf2 0–1. pipesharp – double_bishops, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.Bg2 Bb4 5.c3 Bc5 6.d4 Be7 7.0-0 0-0 8.Bg5 Nd5 9.Be7 Qe7 10.e4 Nf6 11.Nbd2 b5 12.Re1 Bb7 13.Rb1 a6 14.Qc1 (14.a4 Bc6+=) 14...c5 (14...d5 15.e5 Nfd7 16.a4=) 15.Ne5 (15.e5 Nh5=) 15...c4 (15...d6 16.Nef3=+) 16.Rb2 (better 16.Nec4!? Bc6 17.Na5+–) 16...d6=+ 17.Nef3 Nbd7 (17...Rd8 18.a4=) 18.Nh4 (18.a4 Bc6=) 18...Ng4 (18...Ra7 19.Nhf3–/+) 19.Nf1 (better 19.Nc4 Rac8 20.Na5=) 19...Ndf6?? (19...Rab8 20.Nd2–/+) 20.Qb1?? (better 20.f3+–) 20...g5 (20...e5!?–/+) 21.Nf3= Be4 22.Qc1 Bf3 (22...Bf3 23.Bf3 Kh8+–). sturgav – KMiroslav, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.Bg2 Bb4 5.c3 Bf8 6.d4 d5 7.0-0 Bg7 8.Nbd2 b6 9.e3 Ba6 10.Re1 0-0 11.Ba3 Re8 12.Rb1 Bf8 (12...Bd3!? 13.Rc1 Nbd7=+) 13.Bf8= Kf8 14.h4 (14.c4 c6=) 14...c5 15.dc5 bc5 16.c4 dc4 17.Nc4?? (better 17.Qc1=) 17...Bc4 (17...Qd1 18.Red1 Bc4 19.Ne5–+) 18.Ng5 (18.Qc2 Bd5 19.e4 Ne4 20.Re4 Be4 21.Qe4 Nd7–+) 18...Bd5 19.f4 (19.Qc2 Bg2 20.Qc5 Kg8 21.Kg2 Nbd7–+) 19...Bg2 (19...h6!? 20.e4 Ba2 21.Rb2 Qd1 22.Rd1 hg5 23.Ra2 gf4 24.e5–+) 20.Kg2 Qd1 21.Red1 h6 22.Nf3 Nd5 23.Re1 Nc6 24.e4 Ndb4 25.a3 Nc2 26.Red1 (26.Rec1 N6d4 27.Ne5 Na3 28.Rb2–+) 26...Ne3 27.Kf2 Nd1 28.Rd1 Rab8 0–1. davidscott – double_bishops, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.h3 Bb4!? 5.a3 Be7 –/+.

4.h3 Bg7 5.Bb2 d5 6.Bg2 b6 7.d3 Bb7 8.Nbd2 c5 9.c4 (9.bc5 bc5 10.Rb1 Bc6+=) 9...Nbd7 10.0-0 0-0 11.Qc2 (11.a3 Qe7=) 11...Rc8 (11...cb4 12.Rfc1+=) 12.Rfe1 (12.b5 Ra8=) 12...Qe7 (12...cb4!? 13.a3 dc4 14.dc4 ba3 15.Ba3 Re8+=) 13.bc5 Nc5 (worse is 13...Rc5 14.Ba3 e5 15.Rac1+/–; 13...Qc5?! 14.Bd4 Qe7 15.Qb2=; 13...bc5?! 14.Rab1=) 14.a4 Rfd8 15.Ne5 dc4 16.Nec4 ½–½. Herrmann – Kuci, Schoeneck, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 e6)

4.Bb2 h6 (4...g4 5.Ne5 d6 6.Nd3=) 5.Bg2 (better is 5.Nc3=) 5...Ng4?? (better is 5...Bg7=) 6.Bh8+– f5 (6...d5 7.a3+–) 7.Bb2 (7.0-0 d5+–) 7...e5 8.h3 e4 9.hg4 fg4 10.Ne5 d6 11.Nc4 d5 12.Ne3 a5 13.a3 ab4 14.ab4 d4 15.Ra8 Bb4 16.Rb8 Qf6 17.Nd5 Bd2 18.Qd2 Qd8 19.Qd4 Qe7 20.Rc8 Qd8 21.Nf6 Kf7 22.Qd8 (22.Qd8 e3 23.Qc7 Ke6 24.Qd7) 1–0. snowshinethedog – Gr8test Alive, ChessWorld.net, 2005.

4.Ng5+= Ng4 5.e4+/– f6?? (better is 5...d5 6.Be2 Bg7+/–) 6.Qg4+– h5 7.Qf5 Rg8 (7...Rh6 8.Be2 e6 9.Bh5 Ke7 10.Qg4+–) 8.Nf3 (better is 8.Nh7 e6 9.Nf6 Kf7 10.Qh5 Rg6+–) 8...Bh6 (8...e6 9.Qh5 Ke7+–) 9.Qh5 (9.Qh5 Kf8 10.Qh6 Kf7 11.Bb2+–) 1–0. toolman – Gr8test Alive, ChessWorld.net, 2005.

4.Ng5+= Bg7 5.Bb2 (5.d4 d5+=) 5...0-0 (5...d5 6.Bg2+=) 6.Bg2 Bh6 (6...d5!?+=) 7.Bf6+– ef6 8.Nh3 (8.Nf3 Re8+/–) 8...Re8 (8...d5 9.0-0+/–) 9.Nf4 (9.e3 c6+/–) 9...Re7 (9...c6 10.e3+/–) 10.Nh5 Re5 (10...Re8 11.e3+–) 11.e3 Re8 (11...a5 12.f4 Re6 13.b5+–) 12.b5 (12.Qf3 Re6+–) 12...f5 13.c4 d6 14.a4 Bg5 15.d4 Re7 16.Nc3 Re6 17.a5 Be3? 18.fe3 Qe8 19.a6 Re3 20.Kf2 Re2 21.Ne2 f4 22.Nf6 Kg7 23.Ne8 Kf8 24.ab7 Bg4 25.ba8Q fg3 26.hg3 Be6 27.Qb8 (27.Qb8 Bc4 28.Nf6 Ke7 29.Ng8 Kd7 30.Bc6 Ke6 31.Qc8) 1–0. amoruritme – Gr8test Alive, ChessWorld.net, 2005.

5.Nf3 a5 6.b5+/– Ng4 (6...Bg7 7.d4+=) 7.Bg2 (7.Bb2 Rg8+–) 7...Bg7+/– 8.d4 a4 (8...d5 9.Bf4+/–) 9.e4 Ne3?? (better is 9...d6+/–) 10.Be3+– Ra5 (10...c6 11.Nbd2+–) 11.Nc3 (11.c4 d6+–) 11...d6 12.0-0 (12.0-0 Be6 13.Qd3+–; 12.Rb1 Nd7+–) 1–0. Double Wood – Gr8test Alive, ChessWorld.net, 2005.

5.Nf3 d5 6.Bg2 Bg4 (6...Nbd7 7.d4+/–) 7.0-0 (7.Ne5 Bf5+/–) 7...Rg8 8.d3 (8.d4 e6+/–) 8...Nc6 (8...Bg7 9.c3+=) 9.c4 (9.c3 Bg7+=) 9...Nb4 (9...dc4 10.b5 Nd4 11.dc4 Bf3 12.ef3+=) 10.Qa4+/– Qd7?? (better is 10...Nc6 11.cd5 Nd5+/–) 11.Qb4+– (11.Qb4 c6 12.Nc3+–) 1–0. ncc_1701 – Gr8test Alive, ChessWorld.net, 2005.

5.Nf3 Ng4 6.Bg2 (6.Bb2 Rg8+/–) 6...a5 (6...Bg7 7.d4+/–) 7.Bb2 ab4?? (better is 7...Rg8 8.h3 Nf6 9.Bf6 ef6+/–) 8.Bh8+– (8.Bh8 e6 9.e4+–) 1–0. Atterl – Gr8test Alive, ChessWorld.net, 2005.

5.Nf3+/– Bg7 6.Bb2 c5 7.bc5 b6 (7...Qa5!?+/–) 8.cb6+– ab6 9.Bg2 Ra5 (9...d5 10.h3+–) 10.0-0 (better is 10.c4+–) 10...Ne4?? (better is 10...d5+–) 11.Bg7 Rh7 12.Bc3 (12.Bb2 d5+–) 12...Rc5 13.Nd4 Rf5 14.Nf5 e6 15.Ng7 Rg7 16.Be4 d5 17.Bg7 de4 18.Bh6 Qf6 19.Nc3 Qh6 20.Ne4 Nc6 21.Nd6 Kd7 22.Nc8 Kc8 23.Rb1 Nd4 24.c3 e5 25.cd4 ed4 26.Qc2 Kb7 27.Rfc1 Qf8 28.Qc6 Ka7 29.Qb6 Ka8 1–0. Letsplay! – Gr8test Alive, ChessWorld.net, 2005.

5.Nf3+/– Bg7 6.Bg2 e5 7.Ne5+/– Ne4 (7...Ng4!? 8.d4 Ne5 9.de5 Be5+/–) 8.d4+– c5?? (better is 8...d5+–) 9.Be4 a5 (9...d5 10.Bg2 cd4 11.Nd3+– (11.Qd4?! Nc6 12.Nc6 Bd4 13.Nd4 Be6+–)) 10.0-0 (better is 10.bc5!? Nc6 11.Bf4 a4+–) 10...Ra6 11.bc5 Rd6 12.cd6 f6 13.Bg6 Kf8 14.Nf7 Qe8 15.Nh8 Qg6 16.Ng6 Kg8 17.Ne7 Kf8 18.Nc8 f5 19.e4! (19.e4 Nc6 20.Qh5 Nd4 21.Bh6 Bh6 22.Qh6 Kf7 23.Ne7 Nf3 24.Kh1 Ne5 25.Nf5 Ng6 26.Qg7 Ke6 27.f4 Nf4 28.Qe7) 1–0. Kapote – Gr8test Alive, ChessWorld.net, 2005.

4.a3 a5 5.Bb2 d5 6.h3 0-0 7.Bg2 Qd6 8.Be5 Qd7 9.Bb2 =+.

4.a3 a5 5.b5 Ne4 6.Ra2 d5 7.Bg2 e5 8.Bb2 d4 9.c4 =.

4.a3 d5 5.Bb2 0-0=+ 6.Bg2 e6 (6...a5 7.0-0=+) 7.Qc1 (7.0-0 a5=) 7...Nbd7 (7...a5 8.0-0=) 8.c4 a5 (8...Re8 9.Ne5=) 9.b5 (9.0-0 c6=) 9...c6 10.a4 (10.cd5 cd5 11.0-0 Re8=) 10...cb5 (10...Re8 11.0-0=) 11.ab5 b6 (11...Re8 12.0-0=) 12.d4 Bb7 (12...Re8 13.0-0=) 13.c5+= bc5 14.dc5 Rc8 (14...Bc8 15.0-0+=) 15.c6 Qb6 16.Nc3 (16.Nd4 Ne4 17.Qe3 Bc6 18.Nc6 Qe3 19.fe3 Bb2=) 16...Ne4 (better is 16...Bc6 17.bc6 Ne4–/+) 17.Ne4+= de4 (17...de4 18.Bg7 ef3 19.Bf3 Kg7 20.Qb2 f6 21.cb7 Rc5+=). amoruritme – toolman, ChessWorld.net, 2005.

4.a3 d5 5.Bb2 Nbd7 6.Bg2 0-0 7.0-0 Re8 8.d4 h6 9.Nbd2 =+.

4.a3 d5 5.d3 a5 6.Bb2 ab4 7.ab4 Ra1 8.Ba1 Qd6 9.b5 =+.

4.a3 d5 5.Bg2 a5 6.b5 c6 7.Bb2 cb5 8.0-0 0-0 9.Nc3 =+.

4.a3 Ne4 5.Ra2 d6 6.c4 0-0 7.Bg2 h6 8.0-0 f5 9.d3 =.

4.a3 Ne4 5.c3 d5 6.Qb3 a5 7.d3 Nf6 8.ba5 Nc6 9.Bg2 =.

4.Na3 0-0 5.Bg2 c6 6.0-0 d5 7.c4 a5 8.b5 cb5 9.Nb5 (better is 9.cb5!? Bf5 10.Bb2=) 9...dc4–/+ 10.Bb2 Nc6 (10...Qb6 11.a4=+) 11.Rc1=+ a4 (11...Be6 12.a4=+) 12.Na3 Be6 13.Nc4 Na5 14.Na5 Qa5 15.a3 Bb3 16.Qe1 Rac8 17.d3 Qb6 18.Qd2 Rfd8 19.Rc8 Rc8 20.Rc1 Rd8 21.Qc3 Ne8 (21...Bd5 22.Qc7 Qc7 23.Rc7=) 22.Ne5+= Qb5 23.Qc5 Qc5 24.Rc5 Nd6 (24...b6 25.Rc6 f6 26.Nc4+=) 25.f4 (25.Rc7 Be6+=) 25...h5 (25...f6 26.Nf3+=) 26.Kf2 Bf8 27.Rc7 Be6 28.Ke3 Rc8 29.Rc8 Bc8 30.Kd4 Be6 31.Kc5 Bb3 32.Kb6 Nf5 33.Bb7+/– Ne3 34.Bc6 Nd1 35.Bd4+– e6 36.Nc4 Bg7 37.Bg7 Kg7 38.Kc5 Nc3 39.e4 Kf6 40.e5 Ke7 41.Nd6 Bc2 42.Be8 (42.Be8 Ne2 43.Bf7 Bd3 44.Be8+–) 1–0. Smyslov,Vassily (2570) – Magerramov,Elmar (2470), Palma de Mallorca GMA, 1989. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Na3 0-0 5.Bg2 d5 6.c4 c6 7.0-0 Na6 8.Rb1 Nc7 9.d3 b6 10.Qc2 Bb7 11.e4 d4 12.e5 Nd7 13.Re1 Ne6 14.Qe2 Qc7 15.h4 h5 16.Bd2 Rad8 17.Nc2 Rfe8 18.Kh2 c5 19.bc5 Ndc5 20.Nb4 Rc8 21.Nd5 Qd7 22.Ng5 Red8 23.Ne6 Ne6 (23...Qe6? 24.Bh3 f5 25.ef6 Qe2 26.Re2 ef6 27.Bc8 Bc8 28.Re7+/–) 24.a4 Nc5 25.a5 ba5 26.Ba5 Re8 27.Bb4 Bd5 28.cd5 e6 29.d6 Na4 30.Qf3 Nc3?? (better is 30...Rf8 31.Ba3 Nb6+/–) 31.Bc3+– dc3 32.Rb7 Qb7 33.Qb7 Rb8 34.Qa7 c2 35.d7 Red8 (35...Rf8 36.Qc7 Rb1 37.Rh1 Rh1 38.Bh1+–) 36.Qc7 Rb1 1–0. Ivanisevic,Ivan (2555) – Torrallardona,Eduard (2130), Internet Section, 2003. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Na3 0-0 5.Bg2 d6 6.0-0 e5 7.d3 Nc6 8.b5 Ne7 9.c4 e4 10.Nd2 (better is 10.Nd4!? Nf5 11.Nac2= (11.de4? Nd4 12.Bb2 Ne6–+)) 10...ed3–/+ 11.ed3 Nfd5 12.Nc2 Ba1 13.Na1 Nf6 14.Bb2 Nf5 15.Qf3 Nd7 16.Ne4 Ne5 17.Qe2 Ng7 18.f4 Bg4 (better is 18...Nd7!?+=) 19.Qd2 Nd7 20.h3 (better is 20.Nf2!? Bf5 21.Bb7+=) 20...Be6+= 21.Qc3 f6 22.Ng5 Rb8 23.Ne6 Ne6 24.Bd5 Re8 25.Re1 Kf7 26.c5 Ndc5 27.Nb3 (better is 27.d4 Nd7 28.f5 gf5 29.Qf3–/+) 27...Nb3?? (better is 27...Na4 28.Qc4 Nb2 29.Be6 Kg7=) 28.Qb3+– Qd7 29.Qc3 Qd8 30.Qc4 Qd7 (better is 30...Kg7!? 31.Re6 Re6 32.Be6 a6+/–) 31.Qd4 Qd8 32.Qe4 (better is 32.f5!? gf5 33.Qh4 Kg7 34.Be6 h6+–) 32...Kg7+/– 33.Be6 c6 34.f5 d5 35.Qh4 c5 36.Bc1 g5 37.Qh5 Qc7 38.Kh2 b6? (better is 38...Kh8+–) 39.h4 gh4 40.Bh6 Kh8 41.Qh4 Qd8 42.Qg4 Qc7? 43.Bf4 Qg7 44.Qh4 Rbd8 45.Bh6 Qe7 46.g4 d4 47.g5 fg5 48.Bg5 Qc7 49.Bf4 Qg7 50.Be5 (50.Be5 Qe5 51.Re5 Rf8 52.Bf7 Rf7 53.Qd8 Kg7 54.Qg5 Kf8 55.Qh6 Rg7 56.Qf6 Rf7 57.Qh8) 1–0. Apryshko,Gleb (2180) – Khobotova,Olesia (1950), Obninsk op, 2009. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Na3 0-0 5.Bg2 d6 6.Bb2 e5 7.d3 c6 (7...Nc6 8.b5 Ne7 9.0-0=+) 8.0-0 Nbd7 9.c4 Qe7 10.e4 d5 11.ed5 Qb4 12.Qb3 Qd6 13.dc6 bc6 14.Rad1 Rb8 15.Qc2 Qc7 (15...Re8 16.Rfe1=) 16.d4 ed4 17.Bd4 (worse 17.Rd4 Nh5=+) 17...Nh5 (17...Qa5 18.Qc3 Qa4 19.Rfe1=) 18.Bg7+= Ng7 19.Nd4 Bb7 20.c5 Qa5 21.Nb3 (21.Nc6 A) 21...Qa3? 22.Nb8 (22.Rd7?! Bc6 23.Bc6 Rbc8+–) 22...Nc5 23.Nd7 Nd7 24.Rd7 Bg2 25.Kg2+–; B) 21...Bc6 22.Bc6 Ne5=) 21...Qa3 22.Rd7 Ne6 23.h4 (23.Rfd1 a5+=) 23...a5+= 24.Bh3 Ng7 25.Rd4 (25.Rd2 Rfd8+=) 25...Bc8 26.Bg2 Bf5 27.Qd2 Attacking the isolated pawn on a5 27...a4 (27...Ne6 28.Rd6 a4 29.Nd4=) 28.Na5 Rb2 (worse 28...Qc5 29.Nc6 Rb7 30.Ra4+–) 29.Qd1 The isolani on a4 becomes a target (29.Qc1 Ne6 30.Rd2 Ra2 31.Ra2 Qa2 32.Nc6 Re8=) 29...Ra2 (worse 29...Qa2 30.Ra4 (30.Bc6?! a3=) 30...Qe6 31.Qd4+– (worse 31.Nc6 Bc2 32.Qd4 Ba4 33.Qa4 Nf5=+)) 30.Nc6 Qc5 31.Ra4 ½–½. Pacl,Vaclav (2115) – Dobes,Ludek (2010), Ostravsky Konik Open, 2016. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Na3 c6 5.Bg2 0-0 6.0-0 Nd5 7.c3 (7.Rb1!?=) 7...Nb4=+ 8.d4 Nd5 9.Bb2 (9.c4 Nf6=+) 9...d6 (9...Nf6 10.c4–/+) 10.e4 (10.c4 Nf6–/+) 10...Nb6 (10...Nf6 11.Re1–/+) 11.c4 (11.Re1 N8d7–/+) 11...c5 (11...d5 12.ed5 cd5 13.c5=+) 12.Rb1=+ Na6 (12...N8d7 13.d5=+) 13.Bc3 (13.d5 e5=+) 13...cd4–/+ 14.Nd4 Bd7 (14...Nc5 15.Ba5–/+) 15.Qd2 (15.Ba5 Nc5–/+) 15...Nc5 (15...Qc7 16.Rfc1–/+) 16.f4 (16.Nb3 Bc3 17.Qc3 Rc8–/+) 16...Qc8 17.f5 (17.Ndb5–/+) 17...e5 18.fe6 Ne6 19.Ne6 Bc3 20.Qc3 Be6 21.Rf6 Na4 22.Qd3 Nc5 23.Qd6 Rd8–+ 24.Qe7? Rd7 25.Rg6 hg6 26.Qh4 Qf8 27.e5 Nd3 28.Bh3 Qc5 29.Kh1 Nf2 30.Kg2 Bh3 31.Kg1 Ng4 32.Kh1 Qc6 33.Kg1 Qg2# 0–1. mi (2060) – lga, net–chess.com, 2008.

4.Na3 d5 5.d3 0-0 (5...Ne4 6.de4 Ba1 7.ed5–/+) 6.Rb1=+ a6 7.Bg2 c6 8.0-0 Re8 9.Bb2 Nbd7 10.c4 e5 11.cd5 cd5 12.Rc1 b5 13.Qc2 Bb7 14.Qc7 Now all is on e5 14...Qc7 15.Rc7 Bc8 16.Rfc1 Nh5 17.Ng5 Nhf6 18.f4 Rb8? (better 18...ef4 19.gf4 h6+=) 19.fe5+– Ne5 20.Be5 Be6? (20...Re5 21.Rc8 Rc8 22.Rc8 Bf8+–) 21.Rf1 (21.Rf1 Nh5 22.Bg7 Ng7 23.Nf7+–) 1–0. marekt – sturgav, ChessWorld.net, 2013. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Na3 d5 5.Bg2 c6 6.0-0 0-0 7.c4 dc4 8.Nc4 Nd5 9.Rb1 Bf5 10.Rb3 Nb6 11.Ne3 Be6 12.Rd3 N8d7 13.a4 a5 14.b5 cb5 15.ab5 Qc8 16.Nd4 Nc5 17.Ne6 Qe6 (< 17...Ne6 18.Ba3=) 18.Ra3 Qd7 19.Ra2 a4 20.Qc2 Rfc8 21.Ba3 Nb3 22.Qd3 Rc7 23.Qd7 Rd7 24.Bb4 Nd4 25.Re1 Rc7 26.Bc3 Nb5 27.Bg7 Kg7 28.Rb1 Ra5 29.f4 a3 30.Rba1 Kf6 31.Be4 e6 32.Kf2 Nc8 33.Nc2 Ncd6 34.Bd3 Nc4 35.Na3 Ra3 36.Bc4 Ra2 37.Ba2 Ke7 38.Bb3 h6 39.Ke3 Nd6 40.Kd3 Rd7 41.Kc2 g5 42.d3 Rc7 43.Kd2 gf4 44.gf4 Rc5 ½–½. Hess,John (1675) – Sadler,Craig (1890), Swiss–518.3.03, 2007.

4.Bb2 0-0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0-0).

4.Bb2 0-0 5.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.g3).

4.Bb2 a6 5.a3 0-0 6.Bg2 Re8 7.0-0 Nc6 8.c4 e5 9.d3 =.

4.Bb2 a6 5.Bg2 d6 6.0-0 0-0 7.a3 e5 8.c4 Re8 9.d4 =.

4.b5 a6 5.e3 ab5 6.Bb5 0-0 7.Bb2 c6 8.Be2 d6 9.d3 e5 10.0-0 Qb6 11.Qc1 Bg4 12.Nbd2 Nbd7 13.h3 (better 13.c4!?=+) 13...Bh3-+ 14.Rb1? (better 14.Rd1-+) 14...Bf1 15.Bf1 Qc7 16.Kg2 (16.Ba3 Ra4-+) 16...Ra2 17.d4 e4 18.Ng5 d5 19.Be2 (19.c4 Rc8-+) 19...b5 20.Nf1 (20.Ra1 Rfa8-+) 20...Nb6 21.Nh2 (21.Ra1 Ra1 22.Ba1 Ra8-+) 21...Nc4 22.Ng4 Ng4 23.Bg4 h6 24.Ne6 (24.Nh3-+) 24...fe6 25.Be6 Kh7 26.Ba1 (26.Bc3 Qd6 27.Bg4 Qf6-+) 26...Qe7 27.Bg4 Qg5 28.Bd7 Qf6 29.Qf1 Rc2 30.Kh3 Rf2 (30...Rf2 31.Rb2 Rf1 32.Bg4 Rh1 33.Rh2 Qf1 34.Kh4 Bf6) 0-1. imHIVpositive (1895) - soapytime (2080), Rated Classical game, lichess.org, 2015. (=1.Nf3 (A05: Reti Opening: 1 Nf3 Nf6) 1...Nf6 2.g3 g6 3.b4 Bg7)

4.c3 0-0 5.d4 d5 6.Bf4 Nh5 7.Qd2 Nf4 8.Qf4 Qd6 9.Qd6 ed6 10.Bg2 c6 11.Ng5 (11.e3 Bf5=) 11...h6 12.Nf3 Re8 13.Na3 Be6 14.h3 Nd7 15.b5 Nb6 16.0-0-0 Nc4 (16...a6 17.bc6 bc6=+) 17.Nc2?? (better 17.Nc4 dc4 18.bc6 bc6 19.Nd2=) 17...cb5–/+ 18.g4 a5 19.g5 (19.e3 Rac8–/+) 19...h5 (19...b4 20.cb4 ab4 21.Nb4–+) 20.Ne3 Ne3 (better 20...b4 21.Nc4 dc4–+) 21.Rdg1?? (better 21.fe3 Bf5 22.Kd2–/+) 21...Ng2–+ 22.Rg2 Bf5 23.Re1 (23.Kd2 b4 24.Rc1 Bh3–+) 23...Bh3 (23...b4 24.cb4 ab4 25.Kb2 Bh3 26.Rg3–+) 24.Rh2 (24.Rg3 Bf5 25.Kd2 b4–+) 24...Bg4 25.Ng1 (25.Kd2 Bf3 26.ef3 Re1 27.Ke1 b4–+) 25...b4 26.f3 (26.Kd2 bc3 27.Kc3 Rac8 28.Kd2 Bd4–+) 26...Bf5 27.Kb2 (27.e3 bc3 28.Rh4 f6 29.gf6 Bf6–+) 27...bc3 28.Kc3 (28.Kc1 Bd4 29.e4 de4 30.fe4 Re4 31.Re4 Be4–+) 28...Rac8 29.Kb3 Bd4 (29...Re3 30.Ka4 Bd7 31.Ka5 Ra3 32.Kb4 Rca8 33.Rh5 R8a4) 30.e3 Re3 (30...Rc3 31.Kb2 Rce3 32.Kc1 Re1 33.Kd2 Bc5–+) 31.Re3 Be3 32.Ne2 Bg5 (32...Rc2 33.Rg2–+) 33.f4 (33.Nc3 Bf6 34.Nd1 b5–+) 33...Bf6 34.Ka4 Bd8 (34...Rc4 35.Ka3 b5 36.Nc1 Rc1 37.Rb2 Rc3 38.Rb3 d4 39.Kb2 d3 40.Rc3 d2 41.Kb3 d1Q 42.Ka3 b4 43.Kb2 Bc3) 35.Kb3 Bf6 36.Ka4 Rc5 (36...Rc4 37.Ka3 b5 38.Nc1 Rc1 39.Rb2 Rc3 40.Rb3 d4 41.Kb2 d3 42.Rb5 d2 43.Rb8 Rc8 44.Ka3 Rb8 45.Ka4 d1Q 46.Ka5 Qd2 47.Ka4 Qa2) 37.Ng3 Bc2 38.Ka3 Rc3 (38...b5 39.Rc2 Rc2 40.Ne4 de4 41.Kb3 Rb2 42.Ka3 Rb4 43.f5 Bb2) 39.Kb2 Rg3 (39...Bd3 40.Nh5 gh5 41.Rg2 Kf8 42.Rg1 Rc4 43.Ka3 Bc2 44.Rg8 Kg8 45.f5 Ra4) 40.Kc1 (40.Kc2 Rf3 41.Rd2–+) 40...Be4 41.a4 Ra3 42.Kd2 Ra2 (42...Ra2 43.Kd1 Rh2 44.Kc1 Bc3 45.Kd1 Bd3 46.f5 Rh1) 0–1. Eries – zucchini, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.c3 0-0 5.d4 e6 6.Bg5 h6 7.Bf6 Bf6 8.e4 d6 9.e5 de5 10.de5 Qd1 11.Kd1 Rd8 12.Nbd2 Bg5 (12...Bg7 13.Bg2=+) 13.h4 (13.Ng5 hg5 14.Bg2 Nd7+=) 13...Bd2 14.Nd2 Nc6 15.Bg2 (better 15.f4!?+=) 15...Ne5=+ 16.f4? (better 16.Ke2=+) 16...Nc4–+ 17.Kc2?? (17.Kc1 Nd2 18.Rd1–+) 17...Rd2 (17...Nd2?! 18.Rad1 a5 19.b5–/+) 18.Kb3 Rg2 (better 18...b5 19.Rab1 Rg2–+) 19.Kc4 Kf8 (19...Rg3 20.Rad1–+) 20.Rad1 (20.Rhg1 Rg1 21.Rg1 Bd7–+) 20...Ke7 (20...Rg3 21.Rhg1 b5 22.Kd4–+) 21.Rd3 Ra2 22.Kb3 (22.h5 Kf6–+) 22...Rg2 23.Rhd1 b6 (23...b5 24.R1d2 Rd2 25.Rd2–+) 24.R1d2 (24.b5 a6 25.ba6 Ba6 26.Rd7 Kf6–+) 24...Rd2 25.Re3 (25.Rd2 a5 26.ba5 ba5 27.h5–+) 25...Bb7 26.c4 a5 27.g4 ab4 28.Kb4 (28.Re2 Re2 29.c5 Bd5 30.Kb4 Re3 31.cb6 cb6 32.h5 Rb3) 28...Rb2 (28...c5 29.Kc3 Rda2 30.Re6 fe6 31.f5 R8a3) 29.Rb3–+ Rb3 (29...c5 30.Kc3 Rg2 31.Rb2 Ra3 32.Rb3 Rg3 33.Kb2 Rab3 34.Kc2 Be4 35.Kd1 Rg2 36.h5 Rb1) 30.Kb3 f6 31.g5 fg5 32.fg5 hg5 33.hg5 e5 34.Kc3 Rd8 35.Kb4 e4 (35...e4 36.c5 e3 37.Kb3 e2 38.Kc3 e1Q 39.Kc2 Qd2 40.Kb3 Bd5 41.Ka4 Qa5) 0–1. Billbob – zucchini, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Nc3 0-0 5.Bb2 (5.a3 a5 6.Bb2 d5=+) 5...d5 6.Bg2 Re8 7.0-0 e5 8.e3 Nbd7 9.Ne2 (9.a3 Nb6=+) 9...Qe7 10.a3 e4 (10...a5 11.b5=+) 11.Nfd4 Ne5 12.Nf4 (12.f3 Nc4 13.Qc1 a5=+) 12...a5 13.b5 (13.Bc3 g5 14.Nfe2 g4=+) 13...c5 14.Nb3 (14.bc6 bc6 15.Rb1 Nc4 16.Nc6 Qd6 17.Bf6 Bf6=+) 14...Bg4–/+ 15.f3? (better is 15.Qe1 a4 16.Be5 ab3 17.Bf6 Qf6 18.Nd5 Qa1 19.Qa1 Ba1 20.Ra1–+) 15...ef3–+ 16.Bf3 (16.Rf3 Nf3 17.Bf3 Bf3 18.Qf3–+) 16...Nf3 17.Rf3 a4 18.Rb1 ab3 19.cb3 Qe4 20.Kf2 Bf3 (20...Bf3 21.Qc1 d4–+) 0–1. ncc_1701 – Atterl, ChessWorld.net, 2005.

4.Nc3 Nd5 5.Nd5 (5.Bb2 Nb4 6.Rb1 0-0–/+) 5...Ba1 6.c3 c6 (6...a5 7.b5 c6+=) 7.Ne3+= a5 8.Ba3 (better is 8.b5 cb5 9.Nc2 Bc3 10.dc3+=) 8...ab4–+ 9.Bb4 Ra2 10.Qb3 (10.Qb1 Ra8–/+) 10...Rb2 (10...Ra6 11.Nc2 d5 12.e3–+) 11.Qa3 (11.Qd1!? Rb4! 12.cb4 Bg7–/+) 11...Rb1 12.Nd1 Na6 13.Qa2 Rc1 (better is 13...Rb4!? 14.cb4 Nb4–+) 14.Ba3 Qa5 15.Ne5 Qa4?? (better is 15...d5 16.Nd3 Rb1 17.Qb1 Qa3=) 16.Qf7+– Kd8 17.Qe7 Kc7 18.Bc1 Qe4 19.f3 (19.f3 Qd5 20.Nf7+–) 1–0. gbsrao (2425) – jvanmechelen (2445), net–chess.com, 2010.

4.c4 Ne4 5.Nc3? (better 5.d4=+) 5...Nc3-+ 6.dc3 Bc3 7.Bd2 Bg7 (better 7...Ba1!? 8.Qa1 f6-+) 8.Rc1-/+ 0-0 9.e3 d5 (9...d6 10.Bg2-/+) 10.cd5 Qd5 11.Rc7 (better 11.Bc3!? Bc3 12.Rc3 Qa2 13.Rc7-/+) 11...Nc6-+ (11...Qa2?! 12.Be2=+) 12.b5 Qd6?? (better 12...Ne5 13.Bg2 Bg4-+) 13.Rc8= Rac8 14.bc6 Rc6 15.Bg2 Qd3 16.Nd4 Rd6 (16...Rb6 17.Nb3 Rd8=) 17.Bf3 (better 17.Bb4!? Qd1 18.Kd1+=) 17...Rfd8 18.Be2 (18.Bb7? Bd4 19.Qb3 Qb3 20.ab3 Bf6-+) 18...Qe4 19.Bf3 Qe5 20.0-0 Qf6 21.Bb4 R6d7 22.Ba5 (22.Qe2!?+=) 22...b6=+ 23.Bg4? (23.Bd2 e5 24.Nb3 a5=+) 23...Rc7 (better 23...Rd4!? 24.ed4 ba5-+) 24.Bd2=+ h5 (24...e5 25.Nb3=+) 25.Bh3= e5 26.Nb5 (26.Nb3!?=) 26...Rc5-/+ 27.Qe2 (27.Na7? Rcd5-+) 27...Rc2 28.Rd1 Ra2 (28...Qc6 29.Nc3-/+ (29.Na7? Qa4-+)) 29.Qe1 Qc6 30.Nc3 Rc2 31.Bg2 Qc4 32.Be4? (better 32.Nb1 Qd3 33.Bf3-/+) 32...Rc3!-+ 33.Bc3 Rd1 34.Qd1 Qe4 35.Qd8 Kh7 36.Qc7 (36.Qd7 Qc2 37.Be1 a5-+) 36...Qc2 37.Be5 (37.h3 e4 38.Be5 Qc7 39.Bc7-+) 37...Qc7 (better 37...Qd1 38.Kg2 Qd5 39.Kg1 Be5 40.Qa7 b5-+) 38.Bc7 f5 39.Kf1 Kg8 40.Ke2 Kf7 41.Kd3 Ke6 42.Kc4 Kd7 43.Bb8 Kc6 44.Ba7 Be5 45.Bb6 Kb6 46.Kd5 Bc3 47.Ke6 Kc6 48.f3 Bd2 (48...h4 49.gh4 Bd2 50.Kf6+=) 49.e4 (better 49.Kf6+/-) 49...f4=+ 50.gf4 Bf4 51.h3? (better 51.h4=+) 51...h4-+ 52.Kf6 g5 53.e5 Kd7 54.e6 Ke8 55.e7 Be3 56.Ke6 Bc5 57.Kf5 Be7 58.f4 gf4?? (better 58...g4 59.Kg4 Bf6-+) 59.Kf4=+ Kf7 60.Kf5 Kg7 61.Kf4 Kg6 62.Kg4 Bg5 63.Kf3 Kf5 64.Kf2 Kf4 65.Kg2 Ke3 66.Kh1 Kf2 ½-½. anteallach al (2120) - bobby fissure (2070), ChessWorld.net, 2008. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.d4 a6 5.c3 d5 6.Bg2 0-0 7.0-0 Ne4 8.Ng5 f5 9.Qb3 =.

4.d4 a6 5.Nbd2 Nd5 6.Bb2 Nb4 7.c3 Nd5 8.c4 Nf6 9.Bg2 =+.

4.d4 a6 5.Bg2 0-0 6.0-0 d6 7.c3 Bf5 8.Nbd2 Nc6 9.Nh4 =.

4.d4 a6 5.h3 0-0 6.Bg2 d5 7.Nbd2 Bf5 8.c3 Nc6 9.Nh4 =.

4.d4 b6 5.c4 c5 6.bc5 bc5 7.Bg2 (7.dc5? Ne4 8.Qd5 Nc6 (8...Ba1?! 9.Qa8 Nc6 10.Bg2+=) 9.Qe4 Ba1–+) 7...Bb7 8.e3 (worse is 8.dc5 Ne4 9.Nd4 Qa5 10.Kf1 Qc5–/+) 8...cd4 9.ed4 0-0 10.Nbd2 Nc6 11.Rb1 Qc7 12.d5 Na5 13.Qa4 Ba6 (13...Rfc8 14.Ba3+=) 14.Ba3 Bc4 (14...Bc8 15.Rb5 Nb7 16.0-0= (16.Be7? Re8–+)) 15.Bb4 (15.Rc1 Nd5 16.Nc4 Nc6+/–) 15...Bd3 16.Ba5 (16.Qa5?! Qa5 17.Ba5 Bb1 18.Nb1 Nd5+=) 16...Qc8 17.Ra1 Nd5 18.Nd4 Nc3 19.Qb4 Nb5 20.Nb5 (20.Ba8 Qa8 21.f3 Nd4–+ (21...Bd4?! 22.Qb3 Ba1 23.Qd3–+)) 20...Ba1 21.Nc7 Rb8 22.Qa3 Ba6 23.Nd5 Bb2 24.Ne7 (24.Qa4 Qc1 25.Qd1 Qc5–+) 24...Kg7–/+ 25.Nc8 Ba3 26.Na7 Bc5 27.Bc3 f6 28.a4 (better is 28.g4!? Rbe8 29.Kd1–/+) 28...Ba7–+ 29.Ne4 (29.a5 Rfe8 30.Kd1 Rbc8–+ (30...Bf2?! 31.Ne4 Re6 32.Bf3–+)) 29...d5 30.Nd6 d4 31.Ba5 Rb1 32.Kd2 Rb2 33.Kd1 Be2 34.Ke1 Bb8 35.Bd2 d3 (35...d3 36.Bh6 Kh6–+) 0–1. Fantoni – Poleschi, e–mail, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.d4)

4.d4 Nc6 5.b5 Nb8 6.Bg5 h6 7.Bf6 Bf6 8.c3 d6 9.h3 Bd7 10.a4 Be6 11.g4 Nd7?? (11...a6 12.Nbd2=) 12.e3?? (12.d5 Bd5 13.Qd5 c6+–) 12...Qc8?? (better 12...d5=) 13.d5+– Bg4 (13...Bd5 14.Qd5 c6 15.Qd2+–) 14.hg4 Nc5 15.Bh3 Qd7?? (15...e6+–) 16.g5 Qd8 17.gf6 ef6 18.0-0 (18.a5!? f5+–) 18...f5 19.Na3 Qf6 20.c4 g5 21.Qd4 Qd4 (21...Ke7 22.Bg2+–) 22.Nd4 g4 23.Bg2 0-0-0 (23...Na4 24.f3+–) 24.Nac2 (24.Nf5 Kd7+–) 24...h5 25.f3 g3 26.Nf5 h4 27.Bh3 Kb8 28.Ncd4 Nd3 29.Rad1 (29.a5 Rdg8+–) 29...Ne5 (29...Nb2 30.Rc1+–) 30.Rc1 f6 31.Ne6 White prepares c5 31...Rd7 32.Nfd4 Rf7 (32...Rg8 33.a5+–) 33.c5 dc5 34.Rc5 b6 (34...Nd3 35.Rc3 Nf2 36.Rf2 gf2 37.Kf2+–) 35.Rc3 Rg8 (35...a6 36.f4 Ng6 37.Rfc1+–) 36.Nc6 (better 36.Rfc1 a6+–) 36...Kb7 (36...Nc6 37.Rc6 Rd7 38.Rfc1+–) 37.f4 (better 37.Ned8 Ka8 38.Ne5 Rh7+–) 37...Ng4 (37...Nc6 38.dc6 Kb8 39.Rd1+–) 38.Bg4 (38.Ncd8 Kb8 39.Nf7 Nf2 40.Rf2 gf2 41.Kf2 a6 42.Rc7 a5 43.d6 Rg3 44.Nfd8 Rg2 45.Bg2 f5 46.Nc6 Ka8 47.Ra7) 38...f5 39.Bh5 (better 39.Ncd8 Kb8 40.Nf7 g2+–) 39...Rd7 40.Re1 (40.Rfc1!? h3 41.Ne5 Rd6+–) 40...h3 41.Ne5 Rd5 42.Bf3 (42.Rc7 Kb8 43.Nc6 Ka8 44.Ra7) 42...h2 43.Kg2 Kb8 44.Bd5 Kc8 45.Rc7 Kb8 46.Rb7 (46.Nd7) 46...Kc8 47.Rc1 1–0. Billbob – pieeater, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.d4 Nd5 5.a3 0-0 6.e4 Nb6 7.c4 d6 8.a4 (8.c5 dc5 9.bc5= (9.dc5? Ba1 10.Qd8 Rd8 11.cb6 ab6–+)) 8...Bg4–/+ 9.c5? (better is 9.Ra3–/+) 9...dc5–+ 10.dc5?? (10.bc5 Bd4! 11.Ra2 Bc5 12.Nbd2–+) 10...Qd1 11.Kd1 Bf3 12.Be2 Bh1 13.Ra3 N6d7 14.Bg5 Be4 15.Nd2 Bf5 16.Be7 (16.Bf3 c6 17.Be7 Re8–+) 16...Re8 17.Bh4 Bc2! 18.Kc2 Re2 19.g4 (19.Rd3 a5 20.Bd8 Ne5 21.Bc7 Nd3 22.Kd3 Rf2 23.Ba5 Nc6–+) 19...Nc6 20.b5 Nd4 21.Kd1 Rae8 22.Kc1 Re1 23.Kb2 Nf3 (better is 23...Nc5 24.Bf6 Bf6 25.g5–+) 24.Kc2 Nh4 25.Rh3 g5 26.f4 h6 (better is 26...Nc5!? 27.Nb3 R8e2 28.Nd2–+) 27.fg5 hg5 28.c6 bc6 29.bc6 Nb8 30.Nf3 R8e2 31.Nd2 Nc6 32.Ra3 Nd4 (32...Nb4 33.Kb3 a5 34.Nb1 Rb1 35.Kc4 Rc1 36.Rc3 Rc3 37.Kb5 Re5) 33.Kc3–+ Ndf3 34.Kd3 Rd2 35.Kc4 Rc1 36.Kb5 (36.Rc3 Rc3 37.Kb5 Rb2 38.Ka6 Ra3 39.Ka5 Bc3 40.Ka6 Ra4) 36...Rb2 37.Ka6 (37.Rb3 Rb3 38.Ka6 Ra1 39.Ka5 Bc3 40.Ka6 Ra4) 37...Rc6 38.Ka7 (38.Ka5 Rc5 39.Ka6 Rb6 40.Ka7 Ra5) 38...Bd4 39.Ka8 Ra6 0–1. Billbob – stampyshortlegs, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.d4 Nd5)

4.d4 d6 5.Bb2 0-0 6.Nbd2 a6 7.a4 Nbd7 8.Bg2 Rb8 9.c4 c6 10.e3 d5 11.0-0 dc4 12.Nc4 b5 (better is 12...Nd5!?=) 13.Na5+/– Qc7 14.Rc1 Bb7 15.Qc2 Nd5 16.Ba3 N7b6 17.Nd2 (17.ab5 ab5 18.e4 Nf6+/–) 17...e6? (better is 17...ba4!? 18.Ndc4 Nc4 19.Nc4 Bc8+=) 18.Nb7+/– Rb7 19.a5 (19.Qc6?! Qc6 20.Rc6 ba4+/–) 19...Na4 20.Qc6 Qc6 21.Rc6 Ra7 22.Rfc1 Rd8 23.Bd5 ed5 24.Rc8 Ra8 25.Rd8 Rd8 26.Rc6 Bf8 27.Nb3 Rd6 28.Rc8 Kg7 29.Kg2 1–0. Hartlaub,Marianne – Kattinger,Ingeborg (2005), Wch Seniors (Women), 1992. (=1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.b4)

4.Bg2 a5 5.0-0 Nd5 (better is 5...ab4 6.Bb2 0-0–/+) 6.ba5?? (better is 6.d4 ab4 7.c4=+) 6...Ba1–+ 7.Bh3 (7.c3 c6 8.Nd4 Qa5 9.Ba3 Nc3 10.dc3 Bc3 11.Nb3–+) 7...Ra5 8.Ng5 Ra2 9.c4 Nb4 10.Qb3 N8c6 11.Qe3 d5 12.Ba3 Bh3 13.Re1 Bf5 14.Qb3 Bc2 15.Qf3 Ne5 16.e4 Nf3 17.Kg2 Ne1 18.Kh1 Qd7 19.ed5 Qf5 20.Bb4 Qf2 21.h3 Qg2 0–1. Gr8test Alive – amoruritme, ChessWorld.net, 2005.

4.Bg2 Nc6 5.a3 Ng4 6.Nc3 d5 7.Rb1 d4 8.Ne4 Qd5 9.d3 Bf5 10.Neg5 (10.b5 Nd8 11.h3+=) 10...0-0 (10...Qb5 11.0-0=) 11.0-0 (better 11.Nh7!? Rfe8 12.b5+–) 11...Qd7 (11...Qb5 12.h3 Nf6 13.c4 dc3 14.a4=) 12.b5 Nd8 13.Re1 f6 14.e4 (better 14.Ne4!?+=) 14...de3–/+ (worse 14...fg5 15.ef5 Rf5 16.Bh3+=) 15.Nh3 ef2 16.Nf2 Nf2 17.Kf2 Be6 18.Bf4 (18.Qe2 a6 19.b6 Rc8=+) 18...g5 (18...Ba2 19.Ra1 e5 20.Ra2 ef4 21.c4–/+) 19.Bd2 a6 20.ba6 Ra6 21.d4 (better 21.Bc1!?–/+) 21...g4–+ 22.Nh4 Qd4 (22...Ra3?! 23.d5 Bf5 24.Rb2=+) 23.Be3 Qd1 24.Rbd1 Ra3 (better 24...Kf7–+) 25.Bc5=+ Rc3 (25...Ra8 26.Be7 Kf7 27.Bf8 Bf8= (27...Kf8? 28.Rd8 Rd8 29.Re6+–)) 26.Be7+– Rc2 27.Kg1 Re8 28.Bd8 (28.Rd8 Rd8 29.Bd8 Bf7 30.Bb7 c5+–) 28...c6+= 29.Nf5 Bf7 (29...Bf5 30.Re8 Pinning (30.Re8 Deflection)) 30.Nd6?? (better 30.Re8 Be8 31.Nd6+–) 30...Rd8–+ 31.Nb7 (31.Nf7 Rd1 32.Rd1 Kf7 33.Rd7 Kf8 34.Rb7 f5–+) 31...Rd1 32.Rd1 Bd5! (32...Bd5 33.Bd5 cd5 34.Rd5 Bh6–+) 0–1. fybliss – JAY2PLAY, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Bg2 Ne4 5.c3 a5 6.Qc2 d5 7.d3 Nd6 8.ba5 0-0 9.0-0 =.

4.Bg2 Ne4 5.c3 d5 6.Bb2 Nc6 7.d3 Nd6 8.a3 0-0 9.Nbd2 a5 10.0-0 e6 11.Qb3 Qe7 12.a4 ab4 13.cb4 Nf5 14.Bg7 Kg7 15.Rfb1 (15.Qb2 Qf6 16.Qf6 Kf6+=) 15...Ncd4 (15...Rd8!?+=) 16.Qb2+= Qf6 17.e3 Ne2 18.Kf1 Nc3 (18...Qb2!? 19.Rb2 Nc3+=) 19.Rc1+/– Na4 20.Qf6 Kf6 21.Rc7 Nb6 22.Ra5 Ne7 23.e4?? (better is 23.Ne5! Ra5 24.Ng4 Kg7 25.ba5+/–) 23...Nc6+= 24.Rb5 Ra1 25.Ke2 Na8 26.Rcb7 Bb7 27.Rb7 Rb8 28.Rb8 Nb8 29.ed5 ed5 30.Nd4 Nc7 31.b5 Nd7 32.f4 (32.Bh3!? Nb6 33.Ke3–+) 32...Nb6 33.g4 Ra4 34.g5 Kg7 35.Ke3 Rb4 36.f5 Nb5 37.N2f3 Nd4 38.Nd4 Rb2 39.f6 Kf8 40.Ne2 Ke8 41.Nf4 Kd7 42.h4 Kd6 43.Bf3 Rb3 44.Kd4 Rb4 45.Ke3 d4 46.Ke4 (46.Kf2–+) 46...Na4 47.Bg4 Nc5 48.Kf3 Rb3 49.Bc8 (49.h5 Nd3 50.Nd3 Rd3 51.Ke4 Rg3–+) 49...Nd3 0–1. Arnaudov,P (2015) – Schmidek,Emil (2190), 30th Teteven Open, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

4.Bg2 Ne4 5.d4 d5 6.0-0 0-0 7.Ng5 f5 8.Nf3 a5 9.b5 =+.

4.h3 0-0 5.Bb2 d5 6.b5 (6.Bg2 Qd6 7.a3 Nbd7=+) 6...c5 (6...c6 7.a4=+) 7.Bg2 Bd7 (7...a6 8.a4=+) 8.c4 dc4 (8...a6 9.ba6 Na6 10.cd5=+) 9.Ne5= Qc7 10.Na3 Nh5 (10...a6 11.Nd7 Nbd7 12.Qc2=) 11.Qc1= Be5 (11...Rd8!?=) 12.Be5+/– Qe5 13.Bb7 Be6? (better is 13...Nc6! 14.bc6 Rab8+/–) 14.Ba8+– Bd5 (14...Na6 15.Bf3 Nb4 16.0-0+–) 15.Bd5 Qd5 16.Rg1 (16.Rh2 Nd7+–) 16...Nd7 17.Nc4 Rd8 18.f3 Nb6 19.Ne3 Qe5 20.Kf2 Nf6 21.a4 Ne8 22.a5 Nc8 23.Qc3 Qd6 24.Rgb1 Qd2 25.Qd2 Rd2 26.b6 ab6 27.ab6 Nb6 28.Rb6 Kg7 29.Ra7 e5 30.Nc4 (30.Nc4 Rd4 31.Ne5+–) 1–0. amoruritme – ncc_1701, ChessWorld.net, 2005.

4.h3 Nd5 5.d4 =+.

5.Bb2 d6 6.d3 Qb6 7.c4 a5 8.Bg2 0-0 9.0-0 =.

5.d3 0-0 6.Bg2 a5 7.Bb2 ab4 8.ab4 Ra1 9.Ba1 =.

5.d4 d5 6.Bf4 0-0 7.Bg2 Ne4 8.Nbd2 Bf5 9.Ne4 =.

5.Bg2 d6 6.Bb2 0-0 7.0-0 e5 8.c4 h6 9.d3 =.

5.Bh3 d6 6.Bg2 Ne4 7.d4 0-0 8.0-0 a5 9.Bb2 =+.

5.Nc3 d5 6.Bg2 d4 7.Na2 a6 8.Bb2 Nc6 9.a4 =+.

5.d3 0-0 6.Bg2 d6 7.0-0 Qd7 8.c4 Qe6 9.Bb2 =.

5.d4 0-0 6.Bg2 d5 7.Nc3 Bf5 8.Nh4 Be6 9.0-0 =+.

5.Bg2 0-0 6.0-0 d6 7.Nc3 Nbd7 8.d4 Re8 9.e4 =.

5.h3 d6 6.Nc3 e5 7.d3 0-0 8.Bg2 Be6 9.Be3 =+.

5.Na3 0-0 6.Bg2 Qb6 7.Rb1 d6 8.0-0 e5 9.d3 =.

5.c4 0-0 6.Bg2 d5 7.cd5 cd5 8.0-0 Qd6 9.b5 =.

5.d3 d6 6.Nbd2 0-0 7.Bg2 Qb6 8.c3 Nd5 9.Qc2 =.

5.Bg2 Qb6 6.c3 d5 7.d3 0-0 8.Nbd2 Re8 9.0-0 =.

5.Bh3 0-0 6.0-0 d5 7.Bg2 Qd6 8.a3 Nbd7 9.d3 =+.

5.a3 0-0 6.Bg2 Re8 7.0-0 Nbd7 8.d4 Nb6 9.Nbd2 =+.

5.b5 c6 6.a4 Qb6 7.e3 0-0 8.Bg2 cb5 9.Bd4 =+.

5.d3 Qd6 6.a3 a5 7.b5 Qc5 8.c4 dc4 9.dc4 =+.

5.Bg2 Qd6 6.a3 Nbd7 7.0-0 0-0 8.d3 c6 9.Nbd2 =.

5.h3 a6 6.Bg2 Nc6 7.a3 0-0 8.0-0 Qd6 9.d3 =.

5.b5 a6 6.a4 e5 7.Bg2 Nbd7 8.0-0 0-0 9.d3 =.

5.Nc3 e5 6.Bg2 0-0 7.0-0 Nbd7 8.a4 d5 9.a5 =+.

5.c4 0-0 6.Nc3 e5 7.Bg2 e4 8.Nd4 Ng4 9.Nc2 =.

5.Bg2 h6 6.c4 0-0 7.Nc3 e5 8.0-0 Re8 9.d3 =.

5.h3 e5 6.Bg2 e4 7.Nd4 0-0 8.c4 d5 9.c5 =+.

5.b5 c5 6.Bg2 Qa5 7.c3 Qb5 8.dc5 Nc6 9.Na3 (9.Ba3!?–/+) 9...Qc5–+ 10.Nd4?? (better is 10.Nb1–+) 10...Qc3 11.Bd2 Qd4 (11...Qd4 12.Nb5 Qb6–+) 0–1. Morchadze,Lolita – Aliferenko,A (2205), 5th Geller Mem Open A, Odessa UKR, 2009. (=1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.b4 0-0)

5.Nc3 a6 6.Bg2 Nc6 7.a3 d5 8.Ne5 Ne5 9.de5 =.

5.c4 a5 6.ba5 Ra5 7.Bd2 Ra8 8.Bg2 c5 9.Nc3 (9.dc5? Ne4 10.Nh4 Nf2 11.Kf2 Bd4 12.Be3 Ba1–+) 9...cd4 10.Nd4 Nc6 11.Nb3 d6 12.0-0 Ne5 13.c5 dc5 14.Nc5 Qc7 15.N5e4 Ne4 16.Ne4 Bf5 17.Rc1 Qb6 18.Qb3 Qb3 19.ab3 Ra2 20.Be3 Nc6 21.Nc5 b6 (21...Nd4!? 22.Bd4 Bd4=+) 22.Bc6+= bc5 23.Rc5 ½–½. wvmaniac (2665) – croach (2265), net–chess.com, 2016.

5.Bg2 h6 6.0-0 d6 7.Nc3 c5 8.dc5 dc5 9.b5 =.

5.Bg5 d6 6.Bf6 Bf6 7.h3 c5 8.c3 (8.bc5 Qa5 Double attack (8...Qa5 Decoy); 8.dc5 Ba1 Pinning (8...Ba1 Deflection)) 8...cb4 9.cb4 b5 (9...Nc6 10.a3–/+) 10.e4 a6 11.g4 Bb7 12.Qe2? (12.Nc3 Nc6 13.Nd5 Bg7–/+) 12...Nd7 (better is 12...Nc6 13.Qd2 Qb6–+) 13.g5 Bg7 14.Nc3 Rc8 15.Rc1 Be4?? (better is 15...f5 16.gf6 ef6–/+ (16...Bf6?! 17.Qe3+=; worse is 16...Rf6 17.Qe3+=)) 16.Qe4+/– e5 17.de5 Ne5 18.Ne5 Be5 19.Qe3?? (19.Ne2 Rc1 20.Nc1 Bc3 21.Kd1=) 19...Re8?? (better is 19...Bc3 20.Rc3 Re8 21.Rc8 Qc8–+) 20.Be2?? (better is 20.Ne2 Bc3 21.Rc3 Re3 22.fe3 Rc3 23.Nc3 Qg5 24.Kd2+=) 20...Bc3–+ 21.Qc3 (21.Rc3 Re3 22.Re3 Rc1 23.Bd1 Qg5–+) 21...Rc3 22.Rc3 Qg5 23.Kf1 Qd2 24.Re3 Re3 25.fe3 Qb4 26.Rh2 (26.Kf2 Qh4 27.Kg2 Qe4 28.Bf3 Qe3–+) 26...Qb1 27.Kf2 Qa2 28.Rh1 b4 29.Rd1 b3 30.Rd6 (30.Kf1 Qc2 31.Ke1 b2–+) 30...b2 31.Rb6 b1Q 32.Rb1 Qb1 33.Ba6 f5 (33...Qf5!? 34.Kg2–+) 34.Bc4 Kg7 35.Be2 Kf6 36.Kf3 (36.Bf1 Qc2 37.Kf3 Qd2–+) 36...Qe4 37.Kf2 f4 (better is 37...Qh4!? 38.Kg2–+) 38.ef4 Qf4 39.Bf3 g5 (39...Kg5 40.Kg2–+) 40.Kg2 Ke5 41.Kf2 Kd4 42.Kg2 Ke3 43.Bg4 Qf2 44.Kh1 Kf4 45.Bh5 Kg3 46.Bf3 Qh2# 0–1. Billbob – steveberkley, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.d4 0-0)

6.0-0 e6 7.Nbd2 Bd7 8.Ne5 Ba4 9.Nb3 b6 10.Bb2 Nc6 11.Qd2 Ne5 12.de5 Nd7 13.f4 f5 (better is 13...c6!?=) 14.Nd4+/– Kf7 15.c4! c5 (15...dc4 16.Ba8 Pinning (16.Ba8 Deflection)) 16.Ne6! (16.cd5 cd4 17.de6 Ke6 18.Qd4 Ne5+–) 16...Ke6 17.Qd5?? (better is 17.cd5 Kf7 18.e6 Kg8 19.Bg7 (19.ed7?! Bb2 20.Qb2 Qd7+/–) 19...Kg7 20.d6+–) 17...Ke7+= 18.Qd6 Ke8 19.Ba8 Qa8 20.b5 Qb7 21.Rac1 a6 22.ba6 Qa6 23.Rf3 Qb7 24.Rd3 Bc6?? 25.Kf2?? Be4? 26.Rdd1 Qc6+/– 27.Ba1 Qd6 28.Rd6 Ke7 29.Rcd1 Rd8 30.Bb2?? Bb7? 31.Ba3+– Bc8 32.e6 Bd4?? 33.R1d4 cd4 34.Rd7 Ke8 35.Rh7 Be6 36.Re7 Kf8 37.Re6 Kf7 38.Rb6 d3 39.ed3 Rd3 40.Bb4 Rd2 41.Bd2 (41.Bd2 Ke8 42.Rg6+–) 1–0. Berendino,Giacomo – Centofante,M (1605), Arvier ITA, 2012. (=1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.0-0 0-0 6.b4)

7.b5 a4 8.Na3 Ne4 9.Bb2 Qd6 10.Ne5 c5 (10...f6 11.Nd3=) 11.Be4 (11.c4 cd4 12.Qd4 Be6 13.cd5 Be5 14.Qe5 Qe5 15.Be5 Bd5+–) 11...cd4 12.Qd4 Be5 13.Qe5 Qe5 14.Be5 de4 15.Rfd1 Be6 16.Rd4 e3 17.Rad1 ef2 18.Kf2 f6 (worse is 18...Ba2 19.Rd8 Nc6 20.bc6 bc6 21.R8d7+/–) 19.Bc7 Rc8 (worse is 19...Ba2 20.Rd8+/–) 20.Rd8 Kf7 21.Rc8 Bc8 22.Rd8 Nd7 23.Nc4 h5 24.a3 g5 25.Nb6 (25.Rh8 Kg6+/–) 25...Nb6+= 26.Bb6 Ke6 27.c4 Kf5 28.Ke3 Kg4 (28...e5 29.Bc7+/–) 29.Rh8 (29.Bc5!? e5 30.Be7+–) 29...e5 30.c5 f5 (30...Kf5!?+/–) 31.Bc7+– f4 32.Kf2 fg3 33.hg3 Kf5 34.Re8 e4 35.Ke3 h4 36.gh4 gh4 37.b6 (37.Rf8 Ke6 38.Ke4 h3+–) 37...h3 (37...Kf6 38.Be5 Kf7 39.Rh8+/–) 38.Bh2 (38.Rf8!? Kg6+–) 38...Kf6+/– 39.Rh8 Kg7 (39...Kg6 40.Kd4+–) 40.Rd8 (40.Be5!? Kf7+–) 40...Kf6+/– 41.c6 bc6 42.Rc8! Rc8 43.b7 Re8 44.b8Q Rb8 45.Bb8 Kf5 46.Kd4 Ke6 47.Ke4 c5 (47...Kd7 48.Kf3+–) 48.Bh2 1–0. Gemy,J (2325) – Cabanas Bravo,J (2045), I Memorial Oliver Gonzalez, 2010. (=1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 0-0 5.0-0 d5 6.b4)

7.b5 a4 8.Ne5 Ne4 9.f3 Nd6 10.Nc3 c6 11.bc6 bc6 (11...Nc6 12.f4 Nf5 13.e3=) 12.f4 Qa5 13.Bd2 Qa6 (13...Qa7 14.e3=) 14.Rb1+= Nc4 (14...Bf5 15.Rb4+=) 15.Rb4+– Exerts pressure on the isolated pawn 15...Be5 16.fe5 (16.de5?! A) worse 16...Nd2 17.Qd2 Bf5 18.e4 (worse 18.Na4 Qa5=+) 18...de4 19.Qe3+–; B) 16...Qa7 17.Rf2 Na6= (worse 17...Nd2 18.Ra4 Na6 19.Qd2+–)) 16...Nd2 (16...a3 17.Bh6 Rd8 18.e4 de4 19.Ra4 Qa4 20.Na4 Ra4 21.c3+–) 17.Qd2+– Qa7 18.Ra4 (18.Na4?! Qa5 19.Nc5 Na6 20.Na6 Ba6+–) 18...Ba6 19.e6! fe6 20.Rf8 Kf8 21.Qh6 (21.Qf4 Ke8 22.Bh3 Nd7 23.Be6 Nf6+–) 21...Kg8 22.Bh3 Qd7 23.Qe3 Qc7 24.Be6 Kg7 25.Qe5 (better 25.Qf3!? Qd8 26.e4 Qe8+–) 25...Qe5 26.de5 Bb7 27.Rf4 (27.Rb4 Ra7+–) 27...Ra3+– 28.Rf7 Kh6 29.Nd1 Na6 (29...Ba6 30.Kf2 d4 31.Re7 c5+–) 30.Nf2 (30.Re7?! Nc5 31.Bg8 Kg5 32.Rh7 Bc8+–) 30...g5 (30...Ra4+–) 31.Bf5 (31.Bf5 Rg3 32.hg3+–) 1–0. Gemy,Jose Daniel – Cabanas Bravo,Juan Andres, Cto Absoluto de Madrid – Semifinal A, 2011. (=1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.0-0 0-0 5.d4 d5 6.b4 a5)

7.b5 c5 8.Bb2 c4 (8...Nbd7 9.dc5 Nc5 10.e3+=) 9.a4 Bf5 10.Ne5 Nbd7 11.Nc3 Nb6 12.f3 Bc8 13.e4 e6 (13...de4 14.fe4 Ne8 15.Kh1=) 14.Kh1 Nfd7 (14...Qc7 15.Ng4=) 15.Ng4 (15.f4 de4 16.Ne4 f5+/–) 15...f5 16.Nf2 Nf6 (16...f4 17.e5+=) 17.e5 Ne8 18.Ne2 (18.Bc1 Ra7+=) 18...Kf7 (18...Bh6 19.Qb1+=) 19.Bc3 (19.Nh3 Rh8+=) 19...g5 (19...Rh8!?+=) 20.Qd2 Nd7 21.b6! Rh8 (21...Nb6 22.Ba5; 21...Qb6 22.Qg5) 22.Ba5 Nb8 (22...h5 23.Nh3 Bh6 24.g4+=) 23.Bc3 Bd7 24.a5 h5 25.Qc1 Kg6 (25...Bf8 26.Nh3 Bh6 27.Bd2+–) 26.Bd2 (26.Bb4 h4 27.gh4 Rh4+/–) 26...Bh6 (26...Bf8 27.Nh3 Be7 28.Ra2+/–) 27.Kg1 (27.Nh3 Qe7+/–) 27...Na6 (27...Bf8 28.Nh3 Be7 29.Qe1+–) 28.g4 (28.Nh3 Qe7+/–) 28...Ng7 29.Qa3 Qf8 30.Ng3 Qa3+= 31.Ra3 h4 32.gf5+/– ef5 33.Ne2 Bc6 34.h3 f4 35.Ng4 Ne6 36.Nh6 Rh6 37.Rb1 Rh7 38.Bf1 Rd7 39.Kf2 Rc8 40.Bb4 Ra8 41.Bd6 Rg7 42.c3 Rd7 43.Nc1 Kf7 44.Be2 Nd8 45.Bd1 Ke6 46.Bc2 Nf7 47.Bb4 Rg8 48.Ne2 Rdd8 49.Raa1 Bd7 50.Rg1 Nh6? 51.Kg2 Nf5 52.Bf5+– Kf5 53.Kh2 Rg6 54.Rg4 (54.Be7 Re8 55.Rg5 Rg5 56.Bg5 Kg5 57.Rg1 Kh6 58.Nf4 Rf8 59.Rg6 Kh7+–) 54…Rdg8 1–0. Slabek,Grzegorz (2225) – Smolak,Krzysztof (2155), Podhale–ch Poland, 2002. (=1.Nf3 Nf6 2.d4 d5 3.g3 g6 4.Bg2 Bg7 5.0-0 0-0 6.b4)

7.b5 c6 8.a4 cb5 9.ab5 Nbd7 10.c4 dc4 11.Nc3 Nb6 12.e4 Bg4 13.Be3 e6 (13...a4 14.Qb1=) 14.Qc1 (14.Qc2 Bh5=) 14...Bf3 15.Bf3 Nfd7 (15...a4 16.Rd1=) 16.e5 Qc7 17.Bg2 a4 18.Re1 Ra5 19.Bh6 Rfa8 20.Bg7 Kg7 21.Re4 h6 22.Rh4 g5 (better is 22...Rh8!?=) 23.Rh5+/– f6 (23...Kg6 24.Qc2 Kg7 25.f4 gf4 26.Qf2+–) 24.h4 Qd8 (24...Rf8!?+/–) 25.Ne4 Rb5 (25...fe5 26.hg5 ed4 27.Qd2+–) 26.hg5 (26.Nd6!? Raa5 27.hg5 hg5 28.Nb7 Qe7+–) 26...fg5 27.Ng5 Qe8?? 28.Rh6!+– Kh6 29.Ne6 Kg6 30.Qg5 Kf7 31.Qg7 Ke6–+ 32.d5! Mate attack. . . . . (32.d5 Kf5 33.Re1 Qg6 34.Be4 Kg4 35.Qg6 Kh3 36.Qf5) 1–0. Gutman,Lev (2530) – Nimtz,Manfred, Oberliga Nord W, 2000. (=1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.0-0 0-0 5.d4 d5 6.b4)

7.c3 b5 8.Nbd2 Nbd7 (8...ab4 9.cb4 Ra4 10.a3+=) 9.a4= ab4 10.cb4 Ra4 11.Ra4 ba4 12.Qa4 Nb6 13.Qa5 Bg4 14.e3 Qd6 15.Ne5 Ra8 16.Qc5 (worse is 16.Ng4 Ra5 (worse is 16...Ng4 17.Qc5=) 17.Nf6 Bf6 18.ba5 Nd7–/+) 16...Ra2 17.f3 Bc8 18.Nb3 Na4 19.Qd6 ed6 20.Nc6 Bd7 21.Nb8 Nc3 22.Nd7 Ne2 23.Kh1 Nd7 24.Re1 Nb6 25.Bf1 Nc3 26.Bd2 Rb2 27.Bc3 Rb3 28.Rc1 Nc4 29.Bc4 dc4 30.e4 c6 31.d5 (31.g4!?+=) 31...cd5–/+ (31...Rc3? 32.Rc3 cd5 33.Rc2+–; 31...Bc3?? 32.dc6 Ra3 33.Rc3 Ra1 34.Kg2+–) 32.Bg7 Kg7 33.ed5 Rb4 34.f4 Kf6 35.Kg2 Kf5 36.Kf3 h5 37.Ke3 Kg4 38.Rc2 h4 39.gh4 Kh4 40.Ra2 Rb5–+ 41.Ra7 Rd5 42.Rf7 Rd3 43.Ke2 Kg4 44.Rf6 d5 45.h4 d4 46.Rg6 Kf4 47.Re6 Rh3 48.Rc6 Rh2 (48...Rh2 49.Kd1 c3–+) 0–1. Enzendorfer,Alfred (2115) – Sucher,Johannes (2195), St Veit op–A, 2009. (=1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.d4 Nf6 5.0-0 0-0 6.b4)

7.a4 a6 8.Nbd2 Ne4 9.Ne4 de4 10.Ne5 Nd7 11.Nc4 Nb6 12.Nb6 Qb6 13.c3 f5 14.Bf4 Be6 15.f3 Bd5 16.fe4 fe4 17.a5 Qa7 18.Kh1 Rae8 19.Qc2 e5 20.de5 Be5 21.Be5 Rf1 22.Rf1 Re5 23.c4 Be6 24.Qd2 (24.Be4 Qd4 25.Bd3 Bh3+=) 24...Qb8+= (24...Bc4?? 25.Qd8 Re8 26.Qe8 Kg7 27.Qf8#) 25.Qd4 e3 26.Rf3 Bf7 27.Rf6 Re6 (27...Re8!?+=) 28.Re6+/– Be6 29.c5 (29.Qe3?! Qd6 30.h3 Bc4=) 29...Qf8 30.Qe3 Qf6 31.Kg1 Qa1 32.Kf2 Qf6 33.Bf3 g5 34.Kg2 h6 35.g4 Kg7 36.h3 Kg8 37.Qd2 Qe5 (37...Kg7 38.Qd6+–) 38.e3 (38.Qd8!? Kf7 39.Qa8 Qc7+–) 38...Bd5 39.Bd5 cd5 40.Qd4 Qe6 41.Kf3 Qf7 42.Ke2 Qe6 43.Kd2 Kh7 44.e4 de4 45.Ke3 Kg8 (better is 45...Qb3 46.Ke4 Qe6 47.Kd3 Qb3 48.Kd2 Qf7+–) 46.Qd8 Kf7 47.Qc7 Kf6 48.Qb6 (48.Qb6 Ke5 49.Qe6 Ke6 50.Ke4+–; 48.Qb7?! Qb3 49.Ke4 Qb1 50.Kd4 Qa1 51.Kd3 Qd1 52.Kc3 Qc1 53.Kb3 Qb1 54.Kc4 Qf1 55.Kd4 Qa1 56.Ke3 Qe1 57.Kd4 Qd1 58.Kc4 Qf1 59.Kd4 Qd1 60.Kc4 Qf1=) 1–0. Gutman,Lev (2475) – Fischer,Gerold (2035), Bad Zwesten op 7th, 2003. (=1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.d4 Nf6 5.0-0 0-0 6.b4 c6)

7.a4 Qb6 8.Ba3 Ne4 9.c4 dc4 10.Qc2 Nd6 11.Nc3 a5 (worse is 11...Bd4 12.a5 Bf2 13.Rf2+–) 12.b5 cb5 (12...Bd4 13.Nd4 Qd4 14.bc6 Nc6 15.Nb5 Nb5 16.ab5+=) 13.Bc5 (13.Bd6 ed6 14.Nd5+=) 13...Qa6 (better is 13...Qd8 14.Nb5 Be6+=) 14.Nd5+– Bf5 15.Ne7 Kh8 16.Nf5 Nf5 17.ab5 Qb5 18.Rab1 Qd7 19.Bf8 Bf8 20.Ne5 Qe6 21.Rb7 Nd4 22.Qe4 Bg7 23.Nf7 (23.Qd4?! Be5 24.Qd8 Kg7+–) 23...Kg8 24.Qe6 Ne6 25.Bd5 Nd4 26.e3 (26.e3 Ndc6 27.Rfb1+–) 1–0. Gutman,Lev (2470) – Wolff,Christoph (2100), Recklinghausen op, 1999. (=1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.0-0 0-0 5.d4 d5 6.b4 c6)

7.Nc3 Re8 8.Bf4 Nh5 9.Bb8 Rb8 10.e4 de4 11.Ne4 Bf5 12.Nc5 a5 13.a3 ab4 14.ab4 Bg4 (14...b6 15.Na6 Rc8 16.Re1=) 15.c3+= Nf6 16.h3 Bc8 17.Re1 Nd5 18.Qb3 b6 19.Nd3 Bf5 (19...Be6 20.Ng5 Bf5 21.Ne5 Be5 22.de5+/-) 20.c4 (20.Nfe5!? Qd6 21.Nc6 Qc6 22.Bd5 Qf6+-) 20...Nc7 21.Nfe5 (21.Nde5 Bd7+/-) 21...Qd4 (21...Ne6!? 22.d5 Nd4=) 22.Rad1+/- (worse 22.Bc6 Red8 23.Rad1 A) 23...Bh3?? 24.Nf4 Qd1 25.Rd1+- (worse 25.Qd1 Rd1 26.Rd1 Be5 27.Nh3 Ne6-/+); B) 23...Qd6+=) 22...Qd6 23.Nc6 (23.Bc6 Red8 24.g4 Bd3 25.Rd3 Qf6+/-) 23...Rbc8 24.c5 (24.g4 Bd3 25.Qd3 Qd3 26.Rd3 Kf8+/-) 24...bc5 25.Nc5 Qf6 26.Nd7 Bd7 27.Rd7 e6 28.b5 Nd5 29.Bd5 ed5 30.Ne7 Kh8 31.b6 Rb8 (31...d4 32.b7 (32.Nc8?! Re1 33.Kg2 Qc6 34.Qd5 Qd5 35.Rd5 Bf8+-) 32...Rb8 33.Rc7+-) 32.b7 (32.Qd5?! Bf8 33.Qc5 Rb6 34.Ng6 Kg7+/-) 32...Bf8 (32...d4 33.Ng6! hg6 34.Re8 Re8 35.b8Q Rb8 36.Qb8 Kh7 37.Qc7+-) 33.Ng6! hg6 (33...Qg6 34.Re8 Combination; 33...fg6 34.Re8 Combination; 33...hg6 34.Re8 Combination) 34.Re8 Re8 35.b8Q Rb8 36.Qb8 Kg7 37.Rd5 Qf3 38.Rd8 Be7 39.Rg8 Kh6 (39...Kf6 40.Qb6 Kf5 41.g4 Ke5 42.Re8 Qd1 43.Kh2+-) 40.Rh8 Kg7 41.Qg8 Kf6 42.Rh7 Ke6 43.Qc8 Kf6 (43...Kd6+-) 44.Qc4 Qd1 45.Kg2 (45.Kg2 Qd8 46.Qf7 Ke5 47.Qe7 Qe7 48.Re7 Kf6 49.Rc7+-) 1-0. regnir (2230) - bobby fissure (2140), ChessWorld.net, 2008. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bg2 0-0 5.d4 d5 6.0-0)

9.c4 Nbd7 10.Bb2 Rfd8 11.Rc1 a5 12.ba5 Ra5 13.c5 Qc7 14.Nh4 Be6 =.

7.Bb2 Nd7 8.Nbd2 Nb6 9.a4 a5 10.b5 Bf5 11.Ne5 f6 (11...Qc8 12.Nd3=) 12.Nd3= Nd2 13.Qd2 Nc4 14.Qc3 Nb2 (14...Qd6 15.Qb3=) 15.Qb2+= Qd6 16.Qb3 c6? (better is 16...e6!?+=) 17.e4+/– Be6 18.Nf4 (18.Nc5 Bf7 19.Nb7 Qc7 20.bc6 de4+–) 18...Bf7 (18...Rad8 19.Ne6 Qe6 20.c3+=) 19.ed5+/– cd5 (19...Rfd8!? 20.c4 g5+/–) 20.Bd5+– Bd5 21.Qd5 (better is 21.Nd5!? Rf7 22.Rfe1+/–) 21...Qd5+= 22.Nd5 Rad8 23.Nf4 (worse is 23.Ne7 Kf7 24.Rae1 Rd7–/+) 23...Rc8 (23...Rd6 24.Rae1 Kf7 25.Re3+=) 24.Rfe1 e5 25.Ne6 Rfe8 26.Ng7 Kg7 27.de5 Re5 28.Re5 fe5 29.Rd1 Rc2 30.Rd7 Kh6 ½–½. Slabek,Grzegorz (2155) – Luksik,Mateusz (2165), 2rd Polanica Zdroj Poland, TCh, 2004. (=1.d4 Nf6 2.Nf3 d5 3.g3 g6 4.Bg2 Bg7 5.0-0 0-0 6.b4 Ne4+=)

5.a3 a5 6.Bb2 ab4 7.ab4 Ra1 8.Ba1 0-0 9.Bg2 =+.

5.c4 d5 6.Nbd2 0-0 7.Bg2 a5 8.ba5 Qa5 9.Qb3 =+.

5.Nbd2 0-0 6.e4 d6 7.a3 h6 8.c3 a5 9.b5 =+.

5.Bg2 a5 6.ba5 d6 7.0-0 0-0 8.Re1 c5 9.c3 =.

5.h3 0-0 6.Bg2 a5 7.ba5 Qa5 8.Bd2 Qf5 9.Bf4 =+.

5.Nc3 0-0 6.Bg2 Qd6 7.Rb1 Bf5 8.Nh4 Bg4 9.Bf4 =.

5.Nbd2 a5 6.b5 0-0 (6...Ne4 7.Ne4 de4 8.Ne5=+) 7.Bg2= Bd7 (7...c5 8.Bb2=) 8.Rb1 c6 9.bc6 Bc6 (9...Nc6 10.c4=) 10.Ne5 Qc7 11.0-0 (11.c4 dc4 12.Nc6 Nc6 13.Nc4 Nb4=) 11...Ba4 12.Nb3 Nbd7 (12...Ne4 13.Be4 A) < 13...Be5 14.Bd5 (14.de5?! de4 15.e6 f6+=) 14...Bd6 15.c4+–; B) 13...de4=+) 13.Bf4+= Ne5 (13...Qc8 14.Nd7 Bd7 15.Nc5+=) 14.Nc5+/– Qc6 15.Be5 (< 15.de5 Qc5 16.ef6 Bf6 17.Qd5 Qc2 18.Rb7 Qe2=+) 15...Bb5 (15...Ra7 16.Bf6 Bf6 17.e4+/–) 16.a4 (16.Nb7 Bc4+/–) 16...Ba6 (16...Ba4!? 17.Rb7 Rfc8=) 17.c4+/– Bc4 18.Rb7 Ne4 (18...Rfc8!?+=) 19.Rc7+/– Qe8? (better is 19...Qb6 20.Nd7 Qa6 21.Nf8 Be2+/–) 20.Ne4+– Be5 21.de5 Qd8 (21...Qb8 22.Rc5 Qb4 23.Qd2+–) 22.Rc6 Qd7 (22...Rb8 23.Qd2 Rb6+–) 23.Rc4! 1–0. orane – kordun4, caissa.com, 2006.

5.Nbd2 Ne4 6.Ne4 de4 7.Ne5 Be6 8.h3 Be5 9.de5 =+.

5.e3 0-0 6.Bd3 Bg4 7.Be2 Nc6 8.a3 Ne4 9.Bd2 (9.0-0 e6=+) 9...e5–/+ 10.Ne5 Be2 11.Qe2 Ne5 12.de5 Be5 13.0-0?? (better 13.Ra2–/+) 13...Ba1–+ 14.a4 Nd2 15.Qd2 d4 16.ed4 Qd4 17.Qe2 (17.Qd4 Bd4 18.h3 a5–+) 17...Rfe8 (17...Qb4 18.Qb5 a5 19.h3–+) 18.Qd1 (18.Qb5 Rab8–+) 18...Qb4 19.Kg2 (19.c3 Bc3 20.Nc3 Qc3–+) 19...Rad8 (19...Qa4 20.Qd5–+) 20.Qc1 (20.Qf3 Re1 21.Re1 Qe1–+) 20...Qe4 21.Kg1 Bd4 (better 21...Qa4 22.Nd2–+) 22.Nd2 (22.c3 Bc5 23.Qf4 Qf4 24.gf4–+) 22...Qe2 23.Kg2 c5 (better 23...Be3 24.Qd1 Rd2 25.Qe2 Re2 26.c3–+) 24.h3 (24.Nf3–+) 24...Be3 (24...Be3 25.Qd1 Qd2–+) 0–1. pieeater – zucchini, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.d4 d5)

5.Bf4 Nh5 6.Bc1 0-0 7.Bg2 Nf6 8.0-0 Ne4 9.c3 =+.

5.Bg2 Ne4 6.0-0 a5 7.b5 c6 8.a4 0-0 9.Bf4 =.

5.h3 Ne4 6.Bg2 a5 7.b5 c6 8.a4 Qb6 9.Na3 =.

5.h3 Bf5 6.g4 Be4 7.Bg5 (7.Nbd2 a5 8.b5 c5=) 7...0-0 8.Bf6 Bf6 9.Bg2 Nc6 10.a3? (better is 10.c3+=) 10...Bf3–+ 11.Bf3 Bd4?? (better is 11...Nd4 12.Ra2 Nf3 13.ef3 c6–+) 12.c3= Bg7 13.b5 (13.Bd5 Qd6 14.Be4 Qf6+=) 13...Na5 14.Qd2?? (better is 14.Qd5 Qe8 15.Ra2+=) 14...e6 (14...Nb3 15.Qb2 Na1 16.Qa1–+) 15.e4? (15.Qf4 Nc4–+) 15...Nc4 (better is 15...Nb3 16.Qb2 Na1 17.Qa1–+) 16.Qc2 de4 17.Be4 f5 (17...Nd6 18.h4–+) 18.Bd3? (better is 18.gf5!? ef5 19.Bb7–/+) 18...Ne5 (better is 18...Qd5 19.Rg1 a6 20.ba6 Ra6–+) 19.gf5?? (better is 19.Be2–+) 19...Nd3 20.Ke2 Nf4 (better is 20...Rf5 21.f3 Re5 22.Kd1–+) 21.Kf3 (21.Kf1 Qd5 22.Rh2–+) 21...Rf5 22.Nd2 Bc3! 23.Rad1 (23.Qc3 Qd3 Double attack (23...Qd3 Decoy)) 23...g5 (23...Nd3 24.Ke2 Rf2 25.Ke3 Qd4) 24.Qc3 (24.Ne4 Bd4 25.Qa4 Nh3 26.Ke2 Nf4 27.Kf1–+) 24...Nd5 25.Kg4 Nc3 (25...Qd6 26.Kh5 Qf4 27.Qc4 g4 28.Kh4 Qf2 29.Kg4 Ne3) 26.Rde1 (26.Kg3 Qd3 27.Kg2 Rf2 28.Kf2 Rf8 29.Kg2 Qe2 30.Kg3 Qf2 31.Kg4 Qh4) 26...Qd2 (26...Qd4 27.Ne4 h5 28.Kh5 Qh8 29.Kg4 Qh4) 27.Re6 (27.Re3 Qd4 28.Re4 Qe4 29.f4 Qf4 30.Kh5 Qh4) 27...Qf4 28.Kh5 Qh4 0–1. Billbob – Tony_Farrell, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.d4 d5)

5.Nc3 d5 6.Bf4 g5 7.Bc1 Qd6 8.a3 Bf5 9.e3 =+.

5.c4 d5 6.cd5 0-0 7.Bg2 Nd5 8.a3 a5 9.b5 =.

5.Nbd2 0-0 6.e4 d6 7.c3 Nbd7 8.Bg2 e5 9.0-0 =.

5.Bf4 d6 6.Bg2 0-0 7.0-0 g5 8.Bc1 g4 9.Nfd2 =+.

5.Bg2 0-0 6.Nc3 d5 7.0-0 Nbd7 8.Bf4 c6 9.h3 =.

5.0-0 c6 6.d4= d5 7.Bf4 (7.Nbd2 Bf5=) 7...Nbd7 (7...a5 8.ba5 Qa5 9.Qc1=) 8.c4 (8.Nbd2!?=) 8...dc4=+ 9.e4 (better is 9.Qc1!?=+) 9...Ne4–+ 10.Re1 (10.Qe2 Nd6–+) 10...f5 (better is 10...Nef6–+) 11.g4?? (better is 11.Qc2!?–/+) 11...Ndf6 (better is 11...Nf2!? 12.Kf2 fg4 13.Qd2 gf3 14.Bf1–+) 12.gf5 (12.g5 Nd5 13.Be5 Nb4 14.Bg7 Kg7–+) 12...Bf5 13.Bg5 Qb6 14.d5 Nf2 15.Kf1 Bd3 16.Re2 Nd1 17.Nbd2 Qf2 0–1. Gr8test Alive – snowshinethedog, ChessWorld.net, 2005.

5.0-0 d5 6.h4 (6.d4!?=) 6...c6=+ 7.b5 (7.d4 a5=+) 7...Nbd7 (better is 7...cb5!? 8.c3 Nc6–/+) 8.bc6=+ bc6 9.Ng5 (9.d4 Rb8=+) 9...Qb6 (9...Rb8 10.c3–/+) 10.Ba3 (10.Na3 e5=+) 10...Re8 (10...Ne4 11.Nc3 Ng3 12.Re1–/+) 11.Nc3 (11.c3 Rb8–/+) 11…e5 (11...e5 12.Rb1 Qa6–/+; 11...h6 12.Nh3–/+) 0–1. Gr8test Alive – ncc_1701, ChessWorld.net, 2005.

5.0-0 Nd5=+ 6.d4 Nb4 7.a3 N4a6 8.c4 (8.Bb2 d5–/+) 8...c5–/+ 9.e3 (9.Bb2 Nc6–/+) 9...Nc6 10.Nc3 (10.Bb2 d6–/+) 10...d6 11.Rb1 Rb8 12.Bb2 Bf5 13.Rc1 Qd7 14.Nd5 (14.d5 Na5 15.Qe2 Nc7–/+) 14...Be4 (14...Rfc8 15.Qd2–/+) 15.Qd2 (15.Bc3 Rfc8–/+) 15...e6 (15...b5 16.Bc3–/+) 16.Nf4 b5 17.cb5 Rb5 18.Bc3 c4 19.a4 (19.d5 Bc3 20.Rc3 ed5–/+) 19...Rb3 20.d5 Bc3 21.Rc3 ed5 22.Rb3 cb3 23.Nd5 Qf5 24.Ng5 Bg2 25.e4 Be4 26.Ne4 Nc5 27.Nd6 Qe6 28.Nc7 Ne4 29.Ne4 Qe4 30.Nd5 Qf3 31.Nc3 Rd8 32.Qb2 Nd4 33.Re1 Qc6 (33...Qc6 34.Rc1 Nf3 35.Kf1 Re8–+; 33...Qb7 34.Rd1–+) 0–1. Double Wood – Subedei, ChessWorld.net, 2006.

5.0-0 Nd5 6.d4 Nb4 7.a3 N4c6 8.Nc3 (8.c3 d5–/+) 8...d6 9.Qd3 (9.Rb1 Nd7=+) 9...Bg4 10.Rb1 (10.d5 Bf3 11.ef3 Na5=+) 10...Qc8 (10...Nd7 11.Bd2–/+) 11.d5=+ Bf3 12.ef3 (12.Qf3 Ne5 13.Qe4 c6=+) 12...Ne5 13.Qe2 (13.Qb5 Ned7 14.Na4 Nb6–/+) 13...Ned7 (13...c6 14.f4 Ned7 15.Bb2–/+) 14.Bd2 (14.Bb2 Re8=+) 14...Na6 (14...Nb6 15.f4–/+) 15.Bh3 (15.Qe7 Nb6 16.Qh4 Re8=+) 15...Nac5 (15...f5 16.Bg2=+) 16.Qe7 Re8 17.Qg5 Re5=+ 18.Qf4 Rh5 19.Bg4= Bh6 20.Qd4 Bg7 21.Qb4 a5 22.Qf4 Bh6 23.Qd4 Bg7 24.Qf4 Bh6 25.Qd4 ½–½. Double Wood – Letsplay!, ChessWorld.net, 2005.

5.0-0 Nd5=+ 6.d4 Nb4 7.Bb2 d5 8.a3 N4c6 9.Nc3 Bg4 10.h3 Bf3 11.Bf3 e6 12.Re1 (better is 12.e3!?–/+) 12...Nd4–+ 13.Bg2 Nf5 (13...Nb5 14.Nb5 Bb2 15.Rb1–+) 14.e4–/+ de4 15.Be4 Qd1 (15...Nd6 16.Rb1–+) 16.Rad1–/+ c6 17.g4 Ne7 18.Rd3 Nd5 19.Bd5 (19.Na4 Na6–+) 19...cd5 20.Ba1 a6 21.Na4 Ba1 22.Ra1 Nd7 23.Rb1 b5 24.Nc3 Ne5 25.Re3 Nc4 26.Ree1 Na3 27.Rbc1 Rfc8 28.Ne2 Rc2 29.Rc2 Nc2 30.Rc1 Na3 31.Nd4 Nc4 32.Ra1 b4 33.Kf1 a5 34.Ke2 e5 35.Nc6 Kf8 36.Nb4 Nb6 37.Nc6 Nc4 38.Kd3?? f6–+ 39.h4 a4 40.Nb4 Rd8 41.Kc3 Nb6 42.Nc6 Rc8 (42...Rc8 43.Kd3 Rc6–+) 0–1. gbsrao (2100) – petre (2265), net–chess.com, 2007.

5.0-0 Nd5 6.d4 Nb4 7.c3 =+.

5.0-0 Ne4 6.Nc3 d5 7.d3?? (better is 7.Bb2=) 7...Nc3–+ 8.Qd2 Ne2! 9.Qe2 Ba1 0–1. Ozdemir,Yasin – Shapovalov,Dima (1645), 50. LSS No Engine Cup Preliminary, 2011.

5.c4 c6 6.Nc3 d5 7.d4 dc4 8.0-0 Nd5 9.Qc2 Bf5 10.e4 Nc3 11.ef5 gf5 12.Qc3 b5 13.a4 a6 14.ab5 cb5 15.Ne5 Ra7 16.Be3 1-0. connnard - jonafib (1635), Rated Classical game, lichess.org, 2014.

5.c4 d5 6.cd5 Qd5 (better is 6...Nd5!? 7.d4 Nb4–/+) 7.Bb2= a5 8.Nc3 Qh5 9.b5 Bh3 10.0-0 Ng4 11.Qa4 c6 12.Rab1 Rd8 13.Rfd1 e5 14.Ne4 cb5 (better is 14...Bg2!? 15.Kg2 Qf5+=) 15.Qb5+/– h6 16.d3 Nd7 17.Rdc1 Nf8 18.Rc7 Ne6 19.Rb7 Rf8 20.Rc1 Kh8 21.a4 f5 22.Ned2 Rad8 23.Nf1 f4 24.Ba3 fg3?? (better is 24...Rf5 25.Qb6 Bg2 26.Kg2 Re8+–) 25.hg3 (better is 25.Ng3 Rf3 26.Nh5+–) 25...Rf3?? (25...Nd4 A) 26.Bf8 Ne2 27.Kh1 Nf2 28.Kh2 Bd7 29.Nh4 Ng4 (29...Bb5 30.Bg7 Kh7 31.Rc4+=) 30.Kh1 Ng3 31.Ng3 Qh4 32.Kg1 Rf8 33.Nf5 Qh2 34.Kf1 Rf5 35.Ke1 Qg1 36.Kd2 Rf2 37.Kc3 Qc1 38.Kb3 Rb2 39.Ka3 Qa1; B) 26.Qb2 e4 27.de4 Nf3 28.Bf3+–) 26.ef3?? (26.Bf3 Bf1 27.Bg4 Qg4 28.Kf1 Nd4+–) 26...Nd4?? (26...Bg2!? 27.Kg2 Ng5=) 27.fg4 Ne2?? 28.Kh1+– Bg4 29.Nh2 Nd4 30.Qb6 Rg8 31.Kg1 Ne2= 32.Kh1 Nd4 33.Rg7! Rg7 34.Qd8 Kh7 35.Rc7 Ne6 36.Rg7 Ng7 37.Bf8 (37.Bf8 Ne6 38.Qe7 Kg8 39.Bd5 Bf3 40.Bf3+–) 1–0. Mittermeier,Peter – Pocak,Edmund, AUT–chT3, 1998. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7)

5.d3 d6 6.Nbd2 e5 7.Bb2 Nh5 8.Rb1 f5 9.0-0 g5 10.h3 g4 11.hg4 fg4 12.Nh4 Bf6 13.d4 Bh4 14.gh4 Nf4 15.de5 Qh4 16.Ne4 Bf5 17.Ng3 Be6 18.ed6 Nc6 19.b5 Rad8 20.bc6 Rd6 21.Qe1 Rc6 22.Qd2 Rc4 23.Qe3 Rc2 24.Rfc1 Rc1 25.Rc1 c6 26.Rd1 Qh6 27.Rd6 Ng2 28.Qh6 1–0. Jadoul – Reeh, 1987.

5.h4 d5=+ 6.h5 (6.Bb2 Bg4=+) 6...Nh5–/+ 7.g4?? (better is 7.d4–/+) 7…Ng3!–+ (7...Ng3 8.Rh3 Ne2–+; 7...Ba1?! 8.gh5 e5 9.d3–+; 7...Bg4?! 8.d4–+) 0–1. Gr8test Alive – Atterl, ChessWorld.net, 2005.

5.Bb2 a5 6.a3 ab4 7.ab4 Ra1 8.Ba1 Qb6 9.c3 0-0 10.0-0 d5 11.d3 Nh5 12.Nbd2 Bg4 13.Qb3 Na6 14.e4 de4 15.de4 Be6 16.Qc2 h6 17.Rb1 Rd8 18.Bf1 Nf6 19.b5 cb5 20.Rb5 Qc7 21.Qb1 Nc5 22.Nd4 Bd7 23.Rb4 e5 24.N4f3 Bc6 25.Rb5 Bb5 26.Bb5 Qd6 27.Kg2 h5 28.c4 Qd3 29.Qd3 Rd3 30.Be5 Nfe4 31.Ne4 Ne4 0–1. Eriksson – Sandstroem, Helsingborg 1991.

5.c4 a5 6.b5 d5 7.Na3 0-0 8.Bb2 cb5 9.cb5 Nbd7 10.0-0 Re8 11.Qc2 e5 12.d3 Bf8 13.Rac1 Bd6 14.e4 Qe7 15.Nb1 d4 16.a4 Nb6 17.Nbd2 Bd7 18.Qd1 Rac8 19.Ne1 Rc1 20.Bc1 Rc8 21.Nb1 Nh5 22.f4 f6 23.fe5 fe5 24.Nf3 Rf8 25.Bh6 Ng7 26.Nbd2 Kh8 27.Ng5 Rf1 28.Bf1 Be6 29.Be2 Bg8 30.Bg4 Bb4 31.Ndf3 Bc3 32.Qf1 Qf6 33.Ne5 Qf1 34.Kf1 Na4 35.Ngf7 Bf7 36.Nf7 Kg8 37.Nd6 Nc5 38.Ke2 a4 39.Bc1 Bb4 40.Nc4 Nge6 41.Be6 Ne6 42.Kd1 Kf7 43.Kc2 Ke7 44.Bb2 Bc5 45.Na5 b6 46.Nc6 Kd6 47.Kb1 Kc7 48.Ka2 Kb7 49.Ba3 Nc7 50.Na5 Kc8 51.Bc5 bc5 52.b6 Nb5 53.e5 1–0. Zimmerer – Eisenbeiser, Lauda 1986.

5.d4 a5 6.ba5 Qa5 7.c3 0-0 8.0-0 d6 9.Qb3 Nbd7 10.Bg5 (10.Nbd2 Qa4=) 10...e5 11.Bf6 Bf6 12.Nbd2 d5 13.de5 (13.e4 Rd8=) 13...Ne5–/+ 14.Rfc1 Rb8 (14...Nf3 15.Nf3 Qa3 16.Nd4–/+) 15.Ne5=+ Be5 16.Nf3 Bg7 17.e3 Bf5 18.Nd4 Bd7 19.c4? (better 19.Rab1!?=+) 19...c5–+ 20.Ne2 Ba1 21.Ra1 dc4 22.Qc4 Be6 23.Bd5 (23.Qc1 Rfc8–+ (23...Ba2 24.Nc3+–)) 23...Bd5 24.Qd5 Qc7 (24...Rfd8 25.Qc4–+) 25.f4 (25.Rc1 b6–+) 25...Rbd8 26.Qg5 (better 26.Qf3–+) 26...f6 27.Qh6 Rd2 28.Kf2 (28.Nc3 Qc6 29.Qh3 Qf3–+) 28...Qc6 (better 28...Qd7–+) 29.Ke1 (29.Qh3–+) 29...Re2! 30.Ke2 Qg2 31.Kd3 (31.Ke1 Re8 32.f5 g5 33.Qh3 Re3 34.Kd1 Qe2 35.Kc1 Rc3 36.Kb1 Qc2) 31...Rd8 32.Kc4 Qc2 33.Kb5 Qb2 (33...Qd3 34.Kb6 Qa6 35.Kc5 Rc8 36.Kd5 Qc6 37.Kd4 Rd8) 34.Kc5 Qa1 (34...Qa1 35.Qf8 Kf8 36.Kb6 Rd6 37.Kc5 Rc6 38.Kd5 Qd1 39.Ke4 Rc4; 34...Rc8 35.Kd5 Qb5 36.Ke4 Qc6 37.Kd3 Qc2 38.Kd4 Rd8) 0–1. fybliss – whitecat25, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bg2 c6)

5.0-0 Qd6 6.b5 c6 7.Nc3 (7.a4 Bd7=) 7...Nbd7 (7...d4!? 8.Nb1 cb5=+) 8.Rb1 Nb6 9.bc6 bc6 10.a4 Ba6 11.a5 (11.d4 Nc4=) 11...Nbd7 (11...Nc4 12.d3 Na5 13.Ra1=) 12.Rb3 Nc5 (better 12...Qc7=) 13.Ba3+– Nfd7 14.Na4 (better 14.d4 Qc7 15.dc5+–) 14...Qc7? (better 14...e5+=) 15.Nc5+– (15.Bc5?! Qa5 16.Be7 Ke7= (worse 16...Qa4 17.Bd6+–)) 15...Nc5 16.Bc5 e6 (16...Qa5 17.d4+–) 17.d4 Qa5 18.Ra3 Qb5 19.Rb3 Qa5 20.Re1 Kd7 (20...Qc7 21.Nd2+–) 21.e4 Rab8 (21...Qc7+–) 22.ed5 (22.Ra3 Qb5 23.Bf1 Qb7 24.Ra6 Ra8+–) 22...cd5 (22...Rb3 23.dc6 Ke8 24.cb3+–) 23.Ra3 Qb5 24.Bf1 Qb7 25.Ra6 Rhc8 26.Ra7 1–0. gbsrao (2370) – chessleon (2200), net–chess.com, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bg2 d5)

5.a3 Ne4 6.Ra2 e5 7.Bb2 f6 8.d4 ed4 9.Nd4 =.

5.Bb2 Qd6 6.a3 a5 7.Nc3 0-0 8.b5 e5 9.0-0 =+.

5.c3 0-0 6.0-0 h6 7.d3 Nbd7 8.Nbd2 Re8 9.e4 =+.

5.Nc3 Qd6 6.Rb1 e5 7.d4 e4 8.Ne5 Nbd7 9.0-0 =.

5.d4 0-0 6.Nbd2 Qd6 7.c3 Re8 8.0-0 Nbd7 9.a4 =.

5.Kf1 0-0 6.Bb2 (6.d4 c6=+) 6...Nbd7 (6...Qd6 7.a3–/+) 7.h4 (7.a3 a5–/+) 7...e5 (7...a5 8.ba5 Re8 9.h5=+) 8.Ne5=+ Ne4 (better is 8...Ng4 9.d4 Nde5 (< 9...Be5 10.de5 c6 11.e4 Nde5 12.ed5+=; 9...Nge5?! 10.de5 Ne5 11.Qd4=+) 10.de5 c6=+) 9.Nd7? (better is 9.d4!?=) 9...Bb2–/+ (9...Bd7 10.Bg7 Kg7 11.Nc3+=; < 9...Qd7 10.Bg7 Kg7 11.h5+=) 10.Nf8 Ba1 11.Nh7 Kh7 12.c3 Qf6 13.Be4–/+ de4 14.Na3 e3 15.de3? Bc3–+ 16.Nb5?? Qc6 17.Kg1 Qb5 18.h5 Bf6 19.hg6 Kg6 20.Qc2 Bf5 21.Qc7?? Qe2 22.Qf4 Bg5 23.Qd6 f6 24.Qe7 Qd1 25.Kg2 Qd7 (25...Qd7 26.Qd7 Bd7–+) 0–1. snowshinethedog – toolman, ChessWorld.net, 2005.

5.Kf1 Ne4 6.d4 –/+.

5.c3 0-0 6.0-0 Nb4=+ 7.d4 N4c6 8.Bf4 (8.a3 d5–/+) 8...d6–/+ 9.Nbd2 (9.Qd2 e5 10.Bh6 Nd7–/+) 9...e5 10.Bg5 (10.de5 de5 11.Bg5 Qe8–/+) 10...Qe8 (10...f6 11.Qb3 d5 12.Be3–/+) 11.d5 (11.Rb1 ed4 12.Nd4 Nd4 (< 12...Bd4 13.cd4 Kg7 14.Be3=) 13.cd4 Nc6–/+) 11...Ne7 12.Rb1 (12.e4 f5–/+) 12...h6 (better is 12...Nd5!? 13.Qc2 h6–+) 13.Be7–/+ Qe7 14.Ne4 (14.Ne1 f5–/+) 14...f5 15.Ned2 Nd7 (15...Qf7 16.Qb3–/+) 16.Qb3 (16.e4 Nc5–/+) 16...Nc5 17.Qc4 g5 18.Nb3–/+ Ne4 19.Nfd2 Nd2 20.Nd2 e4 21.e3 Rf7 22.g4 fg4 23.Be4 Qe5 24.Bg2? Qc3–+ 25.Qc3 Bc3 26.Ne4 Ba5 27.Rfc1 Bb6 28.a4 Bf5 29.Rc4 Raf8 30.Rbc1? Be4 31.Re4 Rf2 32.Rg4 Be3 (32...Be3 33.Kh1 Bc1–+) 0–1. toolman – Letsplay!, ChessWorld.net, 2006.

5.c3 0-0 6.d4 Nf6 7.0-0 d6 8.Nbd2 c6 9.a4 =.

5.c3 Nb4 6.Qa4 N4c6 7.0-0 0-0 8.d4 d5 9.Ba3 Re8 10.Nbd2 e5 11.de5 Ne5 12.e3 c6 13.Nd4 Nbd7 14.Rab1 Nb6 15.Qc2 Nbc4 16.Bc1 White claimed a win on time 1–0. fybliss – Snoopy85, ChessWorld.net, 2014. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bg2 Nd5)

5.c3 Nb4 6.Bb2 d5 7.d4 N4a6 8.Nbd2 c5 9.0-0 Nc6 10.e4 de4 11.Ne4 0-0 12.Re1 (12.dc5 Qd1 13.Rfd1 f5–/+) 12...cd4 13.cd4 Bg4 (13...Be6 14.Ne5–/+) 14.Rb1 Qd5 15.Qa4 Be6 (15...Nab4 16.a3 b5 17.Qd1=+) 16.Nc3 Qa5 17.Qa5 Na5 18.d5 Bf5 19.Ne4 Rfd8 20.Bg7 Kg7 21.Rbd1 Nb4 22.Nh4 Bg4 23.f3 Bc8 24.d6 ed6 25.Nd6 Be6 26.f4 Ba2 27.Nb7–/+ Nb7 28.Bb7 Rab8 29.Rd8 Rd8 30.Re4 a5 31.Kf2 Rd2 32.Re2 Re2 (32...Re2 33.Ke2 Bc4 34.Kd2 a4–+) 0–1. Morgan,Michael – Fels,Bernhard (1900), IECC, 2001.

5.c3 Nb4 6.Bb2 d5–/+ 7.d4 N4c6 8.0-0 0-0 9.Nbd2 Nd7 10.Rb1 (10.e4 de4 11.Ne4 Nb6=+) 10...Nb6 (10...Nf6 11.c4–/+) 11.Re1 Be6 12.Ne5 (better is 12.a3!?–/+) 12...Ne5–+ 13.de5 Be5 14.Nf3 (14.e4 de4 15.Be4 Qd6–+) 14...Bg7 15.Ng5 (15.c4 dc4 16.Qc2 Bb2 17.Rb2 c6–+) 15...Bc8 16.e4 (16.Qb3 e5 17.Nf3 e4–+) 16...e5 (16...h6 17.Nf3 de4 18.Nd2–+) 17.Qc1 (17.h4 h6 18.Nh3 de4–+) 17...f6 (17...h6 18.Nh3 de4 19.c4–+) 18.Nf3 (18.Ba3 Re8 19.Nh3 c6–+) 18...de4 19.Re4 Bf5 20.Re1 Bb1 21.Qb1 Re8 22.Qe4 Qd5 23.Qd5 Nd5 24.Nd2 Rad8 25.Re4 f5 26.Ra4 Nb6 27.Ra7 Rd2 28.Ba3 (28.Ba3 Ra2 29.Bb7–+) 0–1. toolman – Subedei, ChessWorld.net, 2006.

5.c3 Nb4 6.Qb3 N4c6 7.Ng5 (7.d4 0-0=+) 7...e6 8.d4 0-0 9.0-0 b6 (better is 9...d5–/+) 10.Nd2?? (10.Bf4 f6 11.Nf3 g5=+) 10...Bb7 (10...Qg5 11.e4–+) 11.e4?? (better is 11.Ngf3=+) 11...Qg5–+ 12.e5 Ne7 13.Bb7+/– Nbc6 14.Ba8 Ra8 15.Kg2 Nf5 16.h3 Qe7 17.Ne4 Na5 18.Qd1 d5+= 19.Bg5 Qd7 20.Nf6+= Bf6 21.Bf6 Rc8 22.Qc1 c5 23.g4 Ne7?? 24.Qh6 Nf5 25.gf5 (25.gf5 cd4 26.Qg7) 1–0. geebs (2190) – guerino (2115), net–chess.com, 2005.

5.Nc3 Nb4 6.Ba3 Bc3 (better is 6...N8c6!?+=) 7.dc3+/– N4c6 8.0-0 d6 9.Nd4 (9.Qd2 0-0+=) 9...Bd7 (9...e5 10.Nc6 Nc6 11.Rb1=) 10.e4 (10.Rb1!?+=) 10...0-0= 11.Re1 Qc8 12.Nf3 (12.Qe2 e5 13.Nf3 Na6+=) 12...Na6 13.Rb1 Rb8 14.c4 Re8 15.Qe2 e5 16.Bc1 Be6 17.Bh6 Nc5 18.Ng5 (18.c3–/+) 18...Na4 (18...Nd4!? 19.Qd1 Bc4–+) 19.h4 (better is 19.Qf3 Qd8 20.Ne6 fe6 21.Re3+=) 19...Nc3?? (better is 19...Nd4 20.Qd3 Nc5–/+) 20.Qf3+– Nb1?? (better is 20...f6 21.Ne6 Nb1 22.Qf6 Qd7+–) 21.Qf6 1–0. gbsrao (2265) – tjong (2320), net–chess.com, 2015. (=1.Nf3 Nf6 2.g3 g6 3.b4 Bg7 4.Bg2 Nd5)

5.Nc3 Nc3 6.dc3 Bc3 7.Bd2 Ba1 8.Qa1 –/+.

5.d4 Nb4 6.0-0 c5 7.c3 N4a6 (7...cd4 8.cd4 d5 9.Nc3=+) 8.Bb2 (8.d5 d6–/+) 8...h6 (8...d5 9.Nbd2–/+) 9.e4 (9.Qb3 0-0=+) 9...Nc7 (9...0-0 10.Nbd2=+) 10.Nbd2 (10.dc5 Nba6=+) 10...cd4 (10...0-0 11.Qb3=+) 11.cd4 0-0 12.Qb3 (12.Rc1 d5=+) 12...Nba6 (12...d5 13.Ne5=+) 13.Rfe1 Ne6 (13...d5 14.ed5 Nd5 15.Ne5=+) 14.Nc4 (14.Nc4 Rb8 15.Ne3=+; 14.Rac1 b6=) ½–½. Subedei – amoruritme, ChessWorld.net, 2005.

5.d4 Nb4 6.c3 Nd5 7.Nbd2 0-0 8.e4 Nb6 9.0-0 =+.

5.0-0 Nd5 6.c3 Nb4 7.d4 N4c6 8.h3 0-0 9.Qd3 =+.

5.0-0 e5 6.c4 a6 7.Nc3 Nc6 8.a3 h6 9.d3 Be6 10.e4 Qd7 11.Nd5 Rc8 12.Ne1 Nd4 13.Nc2 Nc2 14.Nf6 Bf6 15.Qc2 Bg7 16.f4 b5 17.c5 ½–½. Soppe (2485) – Agnos (2515), Yerevan, 1996.

5.a3 Ne4 6.c3 0-0 7.Bb2 d5 8.d3 Nd6 9.Qb3 =.

5.c3 0-0 6.0-0 c6 7.a4 h6 8.a5 Qc7 9.d4 =.

5.d4 0-0 6.0-0 c5 7.bc5 dc5 8.dc5 Nc6 9.Bb2 =.

5.h3 0-0 6.Bb2 e5 7.0-0 Re8 8.d3 h6 9.c4 =.

4.a3 a5 5.Bb2 ab4 6.ab4 Ra1 7.Ba1 Bg7 8.Bg2 0-0 9.0-0 =.

4.a3 a5 5.b5 d5 6.Bg2 Bg7 7.Bb2 0-0 8.0-0 c6 9.a4 =.

4.a3 c6 5.d4 Bg7 6.Bg2 a5 7.b5 cb5 8.Nc3 0-0 9.Nb5 =.

4.a3 c6 5.Bg2 Bg7 6.0-0 0-0 7.Bb2 d6 8.c4 Re8 9.Nc3 =.

4.a3 d5 5.Bb2 Nbd7 6.Bd4 Bg7 7.Nc3 0-0 8.Bg2 Re8 9.Ne5 =+.

4.a3 d5 5.d3 Bg7 6.Bb2 a5 7.b5 a4 8.Nbd2 0-0 9.Bg2 =.

4.a3 d5 5.Bg2 Bg7 6.Bb2 Nbd7 7.a4 0-0 8.0-0 Re8 9.Ne5 =+.

4.a3 Bg7 5.Bb2 0-0 6.Bg2 d6 7.c4 e5 8.0-0 Re8 9.d3 =.

4.a3 Bg7 5.d3 d5 6.Bg2 Ne4 7.Ra2 Ng5 8.Ng5 hg5 9.Bg5 =.

4.a3 Bg7 5.d4 0-0 6.Nbd2 d5 7.Bg2 a5 8.b5 c5 9.Bb2 =.

4.a3 Bg7 5.Bg2 0-0 6.d3 d6 7.0-0 a6 8.c4 Nfd7 9.Ra2 =.

4.Bb2 c6 5.a4 Bg7 6.Bg2 Qb6 7.c3 a5 8.b5 cb5 9.Qb3 =+.

4.Bb2 c6 5.d3 Bg7 6.Bg2 0-0 7.0-0 Na6 8.a3 Nc7 9.c4 =.

4.Bb2 c6 5.Bg2 Bg7 6.0-0 0-0 7.c4 d5 8.d3 Qd6 9.c5 =.

4.Bb2 c6 5.Bh3 Bg7 6.Bd4 d6 7.Bc8 Qc8 8.Bf6 Bf6 9.c3 =+.

4.Nc3 d5 5.a3 Bg7 6.Bg2 0-0 7.d4 Nc6 8.b5 Na5 9.Ne5 =+.

4.Nc3 d5 5.Rb1 Bg7 6.Bg2 d4 7.Na4 0-0 8.Bb2 e5 9.0-0 =+.

4.Nc3 d5 5.d4 Bf5 6.Bg2 e6 7.a3 a5 8.b5 c5 9.bc6 =.

4.Nc3 d5 5.Bg2 Qd6 6.a3 Bg7 7.d4 0-0 8.0-0 Ne4 9.Ne4 =+.

4.Nc3 e6 5.a3 Bg7 6.Bg2 0-0 7.d4 d6 8.0-0 Nbd7 9.Qd3 =.

4.Nc3 e6 5.Rb1 d5 6.Bg2 Bg7 7.0-0 0-0 8.d4 Nc6 9.b5 =.

4.Nc3 e6 5.b5 d5 6.Bb2 Bg7 7.Bg2 a6 8.0-0 ab5 9.Nb5 =.

4.Nc3 Bg7 5.d4 c6 6.Bg2 d5 7.0-0 0-0 8.Bf4 g5 9.Bc1 =+.

4.Nc3 Bg7 5.Bg2 Nd5 6.0-0 Nc3 7.dc3 Bc3 8.Rb1 d6 9.a3 =+.

4.Nc3 Bg7 5.h3 Nd5 6.Bb2 Nb4 7.Rb1 e5 8.d4 ed4 9.Nb5 =+.

4.c4 d5 5.Na3 Be6 6.Nd4 Bg4 7.Bg2 e5 8.Ndc2 Be6 9.Bb2 =.

4.c4 d5 5.Qa4 Bd7 6.b5 dc4 7.Qc4 Bg7 8.Bb2 a6 9.a4 =+.

4.c4 d5 5.c5 Bg7 6.d4 Ne4 7.Bg2 a5 8.b5 Nc5 9.Nc3 =+.

4.c4 d5 5.cd5 Bg7 6.Bb2 0-0 7.Bf6 Bf6 8.Nc3 Nd7 9.Rc1 =.

4.Bh3 d5 5.Bc8 Qc8 6.Bb2 Bg7 7.a3 Qh3 8.Rg1 0-0 9.d3 =+.

4.Bh3 d5 5.Bg2 Bg7 6.0-0 0-0 7.d3 Re8 8.Bb2 Qd6 9.a3 =+.

4.Bh3 d6 5.Bc8 Qc8 6.Bb2 Bg7 7.Bf6 Bf6 8.c3 Qh3 9.Qc2 =+.

4.Bh3 d6 5.Bg2 Bg7 6.0-0 Nd5 7.c3 Nb4 8.d4 Nd5 9.e4 =+.

5.Nc3 Bg7 6.Bg2 0-0 7.Bb2 Nbd7 8.0-0 e5 9.d3 =+.

5.d3 Bg7 6.Bg2 0-0 7.0-0 Qd7 8.c4 Qf5 9.Nc3 =.

5.d4 Bg7 6.Bg2 0-0 7.0-0 c5 8.c3 cd4 9.cd4 =.

5.Bg2 Nbd7 6.c4 a5 7.b5 Bg7 8.0-0 0-0 9.Nc3 =.

5.h3 Bg7 6.Bg2 e5 7.d3 0-0 8.c4 e4 9.de4 =+.

5.a3 d6 6.Bg2 Nbd7 7.c4 0-0 8.Nc3 c6 9.0-0 =.

5.a4 0-0 6.Bg2 d6 7.0-0 Nbd7 8.a5 e5 9.d3 =.

5.c4 0-0 6.Nc3 c6 7.Bg2 d5 8.cd5 cd5 9.0-0 =.

5.d3 d6 6.Nbd2 0-0 7.Bg2 e5 8.0-0 Re8 9.a4 =.

5.Bh3 0-0 6.a3 d6 7.Bg2 e5 8.0-0 Be6 9.d3 =+.

5.Rb1 d5 6.Bg2 Bg7 7.0-0 0-0 8.d4 Nbd7 9.b5 =.

5.Bb2 d5 6.Bg2 Nbd7 7.Na4 a5 8.b5 Bg7 9.c4 =.

5.d4 Bg7 6.Bg2 0-0 7.0-0 d6 8.Qd3 Nd5 9.Nd5 =.

5.e4 d5 6.e5 Ne4 7.Na4 Bg7 8.d3 Ng5 9.d4 =.

5.Bg2 Bg7 6.0-0 0-0 7.d3 d5 8.Rb1 d4 9.Na4 =+.

5.b5 Bg7 6.Bb2 0-0 7.Bg2 d5 8.cd5 cb5 9.0-0 =+.

5.Nc3 Bg7 6.d4 d5 7.cd5 Nd5 8.Nd5 cd5 9.Qa4 =+.

5.d4 Bg7 6.Bg2 d5 7.Nbd2 a5 8.Qb3 dc4 9.Nc4 =.

5.Bg2 Bg7 6.Bb2 d5 7.cd5 Qd5 8.Nc3 Qf5 9.d3 =.

5.Bh3 Bg7 6.Bb2 0-0 7.d3 d5 8.Bc8 Qc8 9.h4 =+.

5.Qa4 Nbd7 6.Bg2 Bg7 7.0-0 0-0 8.Bb2 e5 9.d3 =.

5.Nc3 Be6 6.Bg2 Bc4 7.d3 Be6 8.Nd4 Bc8 9.0-0 =+.

5.d3 Bg7 6.Bb2 0-0 7.Bg2 Nbd7 8.0-0 Re8 9.Nc3 =.

5.d4 Bg7 6.Nc3 0-0 7.Bg2 c5 8.bc5 dc5 9.dc5 =.

5.Bg2 Bg7 6.Nc3 d5 7.Qa4 c6 8.cd5 Nd5 9.Bb2 =+.

5.a3 Bg7 6.d4 0-0 7.Bg2 d6 8.0-0 Nbd7 9.Bb2 =.

5.Qa4 Bg7 6.Bg2 Nd5 7.d4 Nc6 8.Bb2 Ndb4 9.Nbd2 =.

5.Qb3 Bg7 6.Bg2 0-0 7.0-0 d6 8.d4 Re8 9.Nc3 =.

5.b5 a6 6.Bb2 Bg7 7.Bg2 d5 8.Qa4 Nbd7 9.cd5 =.

5.Bg2 Bb4 6.0-0 Bf8 7.Nc3 Bg7 8.d4 d6 9.h3 =+.

5.Bb2 d5 6.cd5 Qd5 7.Nc3 Qe6 8.b5 0-0 9.Bg2 =.

5.Qb3 0-0 6.Bg2 d5 7.cd5 Qd5 8.Nc3 Qd8 9.0-0 =.

5.Nc3 d5 6.Qa4 c6 7.cd5 Nd5 8.Bb2 Nb6 9.Qc2 =+.

5.d4 0-0 6.Bg2 d5 7.cd5 a6 8.Nc3 Nd5 9.Nd5 =.

5.Bg2 d5 6.Na3 0-0 7.d4 Be6 8.c5 Bf5 9.0-0 =+.

5.0-0 Bb4 6.d3 Bf8 7.e4 d6 8.Nbd2 Bg7 9.Bb2 =+.

5.a3 Bg7 6.Bg2 0-0 7.0-0 d6 8.d4 Qe7 9.c4 =.

5.Ba3 d6 6.Bb2 Bg7 7.0-0 0-0 8.Bg2 e5 9.d3 =.

5.c3 Bg7 6.0-0 0-0 7.Bg2 d6 8.d4 Nbd7 9.Qd3 =.

5.Bg2 Bb4 6.0-0 d5 7.d3 Bd6 8.c4 dc4 9.dc4 =+.