4.a3 a5 +=.

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

4.a4 Bb4 5.c4 0-0 6.Qb3 (6.Nf3 c5-/+) 6...Bd6 7.Nf3 c6 (7...Nc6 8.cd5 ed5 9.Be2-/+) 8.d4 Nbd7 9.c5 Bc7 10.Nbd2 Qe7 11.Bd3 e5 (11...b6 12.cb6 ab6 13.Qc2-/+) 12.de5 Ne5 13.Be5 Be5 14.Ne5 Qe5 15.0-0 Qh5 16.h3 Rb8 17.f4 (17.Qd1 Qe5-/+) 17...Re8 18.Rf3 (18.Rae1 Qh4 19.Qd1 Bh3-+) 18...Ne4-+ 19.Nf1 (better 19.Be4 de4 20.Rg3 Qc5 21.Qb2-+) 19...Nc5 20.Qc2 Nd3 21.Qd3 Qf5 22.Qd4 b6 23.Rg3 (23.Ng3 Qg6-+) 23...f6 24.a5 c5 25.Qd2 (25.Qc3 Re7-+) 25...b5 26.Rf3 (26.Rc1 c4 27.Qb4-+) 26...Be6 (26...b4 27.Ng3 Qd7 28.Rff1-+) 27.g4?? (better 27.Ng3 Qg6 28.f5=) 27...Qe4-+ Black plans b4 28.Kf2 b4 29.Rc1 b3 30.Rc5 (30.Qb2 Qb4 31.f5-+) 30...b2 31.Rc7 (31.f5 b1Q 32.Rc1 Qbb4 33.fe6 Qd2 34.Nd2 Rb2-+) 31...b1Q 32.Ng3 Rb2 33.Ne4 de4 (33...de4 34.Rc6 Rd2 35.Kg3 Qe1 36.Rf2 Qf2) 0-1. upep (1925) - AnatoliyPechenkin (2040), Rated Classical game, lichess.org, 2013.

4.b5 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6).

4.b5 Qe7 5.Nf3 Ne4 (5...Nbd7 6.c4=) 6.a4 (6.Nc3 a6+=) 6…Qb4. GuestLWDF – GuestWBPK, freechess.org, 2020.

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

4.b5 h6 5.Nf3 Nbd7 (5...Bd6 6.Be5=) 6.c4 Bd6 (6...Nb6 7.cd5 Nbd5 8.Bc4=) 7.d4 c5 (7...a6 8.c5 Be7 9.ba6=) 8.dc5 Nc5 9.Be2 (9.cd5 ed5 10.Be2 0-0=) 9...0-0 10.cd5 Nd5 11.0-0 Qe7 (11...Qb6 12.Qd4 f6 13.Ba3=) 12.Nbd2 (12.Qd4 f6=) 12...Rd8 13.Qc2 (13.e4 Nf4=) 13...Bd7 (13...e5 14.Nc4 e4 15.Nd4=) 14.a4 Rac8 (14...a6 15.Nc4=) 15.Nc4 Bc7 16.Ba3 (16.Rfd1 a6=) 16...a5 (16...a6!?=) 17.Rfc1+= e5 18.Qb2 (18.Na5 Ba5 19.Bc5 Qf6=) 18...e4 19.Nfd2 Nb4 (19...b6 20.Bc5 bc5 21.Nb3+=) 20.Bb4 (20.b6 Bh2 21.Kh2 Ncd3 22.Bd3 Qh4 23.Kg1 Nd3=) 20...ab4 21.Qb4 Qg5 22.a5 Bg4 23.Bf1 Qh5 24.g3 Rd5 25.Qb1 (25.a6 ba6 26.ba6 Rb8+=) 25...Nd3 26.Bd3 ed3 27.a6 Rb5 28.Qd3 ba6 (28...Rd5 29.Qb1 b5 30.a7=) 29.Ra6+= Rd5 30.Qf1 (30.Qa3 Rcd8 31.Ra8 Be6+=) 30...Be2= 31.Qe1 Rcd8 (31...Rc5 32.Ra4=) 32.Raa1 R5d7 33.Ra2 (33.f4 f5=) 33...f5 (33...Bc4 34.Rc4 (34.Nc4?? Rd1 35.Raa1 Re1 36.Re1 Qg4–+) 34...Ba5 35.Rcc2=) 34.f4 ½–½. Fels,Bernhard (2025) – Cedeno Ochoa,Rodrigo, BI–2011–P–00023, 2011.

4.Bb5 c6 5.Ba4 Bb4 6.Nf3 0-0 7.0-0 a5 8.Bb3 Na6 (8...Nbd7 9.a4–/+) 9.c3 (9.d4 Bd6–/+) 9...Bd6 10.d3 (10.d4 a4 11.Ba4 Qb6=+) 10...Ng4 (10...Nc5 11.Bc2–+) 11.Re1 (11.h3 a4 12.Bc2 Nf6–/+) 11...e5 (11...Qf6 12.h3 Ne5 13.Ne5 Qe5 14.f4–/+) 12.Nbd2–/+ Nf6 13.Qc2 (13.c4 Nb4 14.Qb1 Nd3 15.Qd3 e4=+) 13...Bg4 (13...g6 14.a4–+) 14.e4 (14.d4!? e4 15.Ne5–/+) 14...Nc5–+ 15.d4 (15.a4 Qb6–+) 15...ed4 (15...Nb3?! 16.ab3 Bf3 17.Nf3 de4 18.Ne5–/+) 16.Nd4 (16.cd4 Nce4 17.Ne4 Ne4 18.Re4 Bf3–+) 16...de4 17.Nc4?? (17.h3 Bh5 (17...Nb3?! 18.ab3 Bd7 19.Ne4 Ne4 20.Qe4–/+) 18.Re3 a4–+) 17...Nd3 (better 17...a4 18.h3 Bh5 19.Ba3–+) 18.Re4 (18.h3 Ne1 19.Re1 Bh5–+) 18...Nb2 19.Nb2 Ne4 20.Qe4 Qg5 (20...Bh5 21.Bc2 g6 22.Nc4–+) 21.g3 (21.Re1 g6–+) 21...Ba3 (21...Rfe8 22.Qd3–+) 22.Nd3 (22.Bc2 g6 23.h4 Qd2–+) 22...Rfe8 23.Qg2 (23.f4 Re4 24.fg5–+) 23...Qd2 24.h3 (24.f3 Qc3 25.Rd1 Qd4 26.Nf2–+) 24...Bh3 (better 24...Qc3 25.Nc2 a4 26.Bf7 Kf7 27.hg4 Qc2–+) 25.Qh3 Qd3 (25...Qc3 26.Nc2 a4 (26...Qd3?! 27.Na3 Qc3 28.Rd1–+) 27.Bf7 Kf7 28.Qh7 Rad8–+ (28...Qc2 29.Ne5 Re5 30.Qc2+–)) 26.Bf7?? (better 26.Bc2 Qc3 27.Qh7 Kf8 28.Rd1 Re1 29.Re1 Qe1 30.Kg2–+) 26...Kf7 27.Qh5 (27.Kg2 Qc3 28.Rd1 Rad8 29.Qh5 Kg8–+) 27...Kg8 28.Qg4 (28.Qf3 Qf3 29.Nf3 Re2–+) 28...Qc3 29.Rd1 (29.Rb1 Re1 30.Re1 Qe1 31.Kg2 Bc5–+) 29...Re7 (better 29...Rad8 30.Kg2 Qc4 31.Qf3 Qa2 32.Nf5 Rd1 33.Qd1–+) 30.Nf5 Re1 31.Re1 Qe1 32.Kg2 g6 (32...Qc3 33.Nh6 Kf8 34.Nf5–+) 33.Qc4 Kf8 34.Nh6 (34.Qd4 Ke8 35.Qh8 Bf8 36.Ne3–+) 34...Qe7 (better 34...Kg7 35.Ng4 Qd2–+) 35.Qg8 1–0. quislingslayer – drhakimi (1705), gameknot.com, 2018.

4.Bb5 Bd7 5.Bd3 (5.Nc3 Bb4 6.Nf3 0-0–/+) 5...Bb4 6.c3 (6.Nf3 Nc6–/+) 6...Bd6 (6...Bc5 7.Nf3–/+) 7.c4 dc4 (7...Na6 8.Nc3–+) 8.Bc4 c5 (8...b5 9.Be2–/+) 9.Nf3–/+ Nc6 10.0-0 h6 (10...a6 11.Bf6 gf6 12.a4–/+) 11.d3 a6 (11...Na5 12.Nbd2–/+) 12.Qc2 (12.a4 0-0–/+) 12...b5 13.Bb3 0-0 14.e4 (14.Qe2 Qe7–/+) 14...Be7 (14...e5 15.a4–+) 15.Nbd2 (15.Qd2–+) 15...Na5 (15...Qc7 16.e5 Nh5 17.a3–+) 16.Bf6 (16.Ne5!?–/+) 16...Bf6–+ 17.e5 Be7 18.d4?? (better 18.Ne4–+) 18...c4 19.Bc4 (19.Qc3 cb3 (19...Nb3?! 20.ab3 cb3 21.Nb3–+) 20.ab3 Nc6–+) 19...Nc4 20.Nc4 bc4 (20...Rc8 21.Rfc1–+) 21.Rfe1 (21.Rfd1 Qc7–+) 21...Rc8 22.Rab1 (22.Qc3 Bc6–+) 22...a5 (22...c3 23.Re3 Qa5 24.Re2–+) 23.Qe4 (23.Rbc1 Ba3 24.Rb1 c3–+) 23...Bc6 24.Qe2 (24.Qe3 c3! 25.Qc3 Bb4–+) 24...Bf3 25.Qf3 Qd4 26.Red1 (26.Rbd1 Qb2 27.Re2 Qb5–+) 26...Qe5 27.Kf1 (27.Re1 Qf6 28.Qe2–+) 27...c3 28.Rd7 c2 29.Rc1 Bg5 30.Rc2 Rc2 31.g3 Qb5 32.Rd3 Rc1 33.Kg2 Qc4 (33...Rd8 34.h3 Rd3 35.a4 Qc4 36.Qb7 Rd2 37.Qb8 Kh7 38.Qf4 Bf4 39.gf4 Qf4 40.h4 Rf2 41.Kh3 Rc3) 34.a3 Qc6 (34...Rd8 35.h3 Rd3 36.Qb7 Rd2 37.Qb8 Kh7 38.Qb1 Rb1 39.g4 a4 40.Kh2 Rf2 41.Kg3 Qf4) 35.Qc6 Rc5 (better 35...Rc6 36.Rd7 Rd8–+) 36.Qc5+– 1–0. quislingslayer – collywobbles, gameknot.com, 2018.

4.c3 Bb4?? 5.cb4+– 0-0 6.a3 g6 (6...Qe7 7.Nf3+–) 7.Nf3 b6 8.Be2 Bb7 9.0-0 Nbd7 10.d4 c5 11.dc5 bc5 12.b5 a6 13.a4 ab5 14.ab5 Ra1 15.Ba1 Qb6 16.Nc3 Qb5?? (16...Ra8+–) 17.Bb5 Nb6 18.Be2 d4 19.ed4 cd4 20.Nd4 (20.Qd4!? Nbd7 21.Bb5 Bf3 22.gf3 e5+–) 20...Nbd5 21.Nd5 Nd5 22.Nf3 Nb4 23.Qb1 (better is 23.Qd4 f6 24.Qb4 Bf3 25.Bf3 Rf7+–) 23...Bf3 24.Bf3 Nd3 25.Qd3 (25.Qd3 h6 26.Qd6 f6 27.Qe6 Kh7 28.Qe7 Kg8 29.Bd5 Kh8 30.Qf8 Kh7 31.Qg8) 1–0. Fournier,Frederic – s2lari (1680), Active Blind, 2008.

4.c3 Bd6 5.Bb5 Bd7 6.Be2 =+.

4.c3 Be7 5.Nf3 0-0 6.d4 c5 (6...Bd6!?+=) 7.dc5 b6 8.cb6 ab6 9.a3 Nc6 10.Be2 Ba6?? (better is 10...Qc7+=) 11.Ba6+– Ra6 12.Nbd2?? (better is 12.b5 Ra5 13.bc6+–) 12...Ra8 (12...b5 13.a4 Ra4 14.Ra4 ba4 15.Qa4=) 13.0-0 Na7 14.Qc2 Nc6 15.Rfd1 Rc8 16.c4 dc4 17.Nc4 Qc7 18.Rac1 Qh2?? 19.Nh2 Ng4 20.Ng4 Ne5 21.Nce5 Rc2 22.Rc2 1–0. Fournier,Frederic (1860) – neuronas2002 (1700), Active blind, 2011.

4.c3 g6 5.d4 Bg7 6.Bd3 a5 (6...Qd6 7.Nf3=) 7.Qa4 (7.Nf3 ab4 8.cb4 0-0=) 7...Bd7 8.Qa3 (8.b5 c6=) 8...Nc6 9.Qb3 ab4 (9...e5 10.b5 Ne7 11.de5=) 10.cb4 0-0 (10...Qe7 11.b5 Na5 12.Qc3=) 11.b5 (11.Nf3 Ne4=) 11...Na5=+ 12.Qb4 Ne4 13.Nc3 Nc3 14.Qc3 b6 (14...Nc4 15.Qb3=+) 15.Nf3= Nc4 (better 15...c5 16.bc6 Bc6=) 16.0-0?? (16.Bc4 dc4 17.Qc4 Qe8+-) 16...Nb2?? (better 16...Bb5 17.Rfb1 Ba6-/+) 17.Qb2+= c5 (better 17...f6+=) 18.Rac1?? (18.bc6!? Bc6 19.Rab1+=) 18...cd4 (better 18...Ra5-/+) 19.Nd4? (better 19.ed4 Ra7 20.Ne5=) 19...Qc8?? (better 19...e5 20.Nc6 Bc6 21.bc6 e4-+) 20.Nc6 (better 20.Rc8 Rfc8 21.Qb3+-) 20...Bc6 (better 20...Bb2 21.Ne7 Kg7 22.Nc8 Rfc8 (worse 22...Rac8 23.Rc8 Rc8 24.a4-+; worse 22...Bc8 23.Rc2 Be5 24.f4-+; 22...Bc1?! 23.Nb6 Bb5 24.Bb5-+) 23.Rc8 Bc8-+) 21.Rc6 (21.Rc6 Bb2 22.Rc8 Rfc8 23.g4-+). Agiant – LinusChessio, lichess.org, 2018.

4.Bc3 Bd6 5.Nf3 0-0 6.Bb5 a6 7.Be2 Qe7 8.a3 e5 9.0-0 Bg4 10.h3 Bf3 11.Bf3 Nbd7 12.d3 Rfe8 13.Nd2 e4 14.Be2 Rad8 15.Rc1 b5 16.de4 de4 17.Bf6 Nf6 (< 17...gf6 18.c4+=) 18.c4 Qe5 19.g3 Qf5 20.h4 Qh3 21.Qe1 c6 22.Nb3 Rc8 23.Rd1 Red8 24.Na5 Rd7 25.Rc1 Rdc7 26.Nb3 h6 27.Rd1 Be5 28.Nc5 bc4 29.Na6? (Better is 29.Rc1=) 29...Ra7–/+ 30.Nc5 Ra3 31.Rc1 Ra2 32.Rc4?? (Better is 32.Rd1–+) 32...Bg3! 33.fg3 Ng4 34.Qf2 Nf2 0–1. GLChess207e – Gromit220, computer chess game, 2000.

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

4.c4 Bd6 5.cd5 Nd5 6.a3 Nf6 7.Nf3 b6 8.d4 Bb7 9.Be2 0-0 10.0-0 c5 11.Nbd2 (better 11.bc5!? bc5 12.Nbd2=) 11...cb4=+ 12.ab4 Bb4 13.Nc4 Be7 14.Ba3 Ne4 15.Be7 Qe7 16.Nce5 Nc3 17.Qd2 Ne4 18.Qc2 (18.Qd1 f6 19.Nc4 Rc8=+) 18...f6 19.Nd3 (19.Bd3 Rc8 20.Qb1 f5=) 19...f5 (19...Rc8 20.Qb2-/+) 20.Nde5 Nd7 (20...Rc8 21.Qb2=) 21.Nd7 (better 21.Qc7!? Bc8 22.Bb5+/-) 21...Qd7 22.Ne5 Qe7 23.Qb3? (better 23.Rfc1=) 23...Rae8?? (23...Nd2 24.Qa2 Nf1 25.Bf1-+) 24.Bc4?? (better 24.Ra7 Nd6 25.Bf3+/- (25.Qb6?! Nc8 26.Qb7 Na7+=)) 24...Nd2-+ 25.Qa2 Nf1 26.Rf1 Bd5! 27.Bd5 ed5 28.Qd5 Qe6 29.Qf3 Kh8 30.Ra1 a5 31.Rb1 Rb8 32.g3 (32.Nc6 Qa2 33.Rd1 Rbc8-/+) 32...b5 33.Qh5 (33.Qc6!? Qc8 34.Qc8 Rfc8 35.Nf7 Kg8 36.Nd6-+) 33...b4-+ 34.h4 (34.Nd3 a4-+) 34...b3 35.Nd3 a4 36.Nf4 (36.Nc5 Qc6 37.Qd1-+) 36...Qf7 37.Qg5 (37.Qd1-+) 37...a3 Black prepares the advance b2 38.Nd3 (38.h5 a2 39.Rf1 h6 40.Ng6 Kg8 41.Ne7 Kh7 42.Qg6 Qg6 43.Ng6 Rfe8-+) 38...b2 39.Nb2 ab2 (39...Rb2!? 40.Ra1 Qb7 41.Qh5 Rb1 42.Rb1 Qb1 43.Kh2-+) 40.Qf4 Qb7 (40...Qa2 41.Rb2 Qb2 42.Kg2-+) 41.Kh2 Qb3 42.Qe5 (42.Qf3-+) 42...Qa2 43.Rf1 Rg8 (43...b1Q 44.Kg2 Rb2 45.Qf4 Qe4 46.Kh2 Qf4 47.d5 Rf2 48.Rf2 Qaf2 49.Kh3 Q2g3) 44.Rb1 (44.Qf5 Rgf8 45.Qf4-+) 44…Qb1 (44...Qb1 45.d5 Qf1 46.Qd4 b1Q 47.Qg7 Kg7 48.g4 Qf2 49.Kh3 Qbf1) 0-1. muhammadaudii (1895) - Yahreinah (1915), Rated Classical game, lichess.org, 2020.

4.Be2 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Be2 e6).

4.Be2 Bd6 5.b5 Bd7 6.c4 (6.Nf3 Qe7=) 6...dc4 7.Bc4 Qe7 (7...a6 8.a4=+) 8.a4 c6 (8...e5 9.d4=) 9.Nf3 cb5 10.ab5 Nc6?? (10...e5 11.d3=) 11.Qb3?? (better 11.bc6 Bc6 12.Ne5+-) 11...Nb4= 12.0-0 0-0-0?? (better 12...0-0=) 13.Ra7+- Bb8 (13...Kb8 14.Bd4 Bc5+-) 14.Ra8 Qd6 (14...Nfd5 15.Bd5 Bb5 16.Rc1 Kd7 17.Bb7+-) 15.Ba3 (better 15.Be5 Qe5 16.Ne5 b6 17.Qb4 Kb7+-) 15...Ng4 (15...Nfd5 16.Bd5 Qd5 17.Rc1 Nc6 18.Qd5 ed5+-) 16.Bb4 Qc7 17.Bc3 (better 17.Rc1 b6 18.Qa3+-) 17...Nh2 18.Re1 (better 18.Rb8 Kb8 19.Nh2 f6+-) 18...Nf3 19.gf3 Qh2 20.Kf1 Kc7 (20...Rdg8 21.Ba5 b6 22.Bb6+-) 21.f4 (better 21.Bg7!? Rhg8 22.Qc3 Rg7 23.Qg7 Be8+-) 21...Qh1 (21...Qh3 22.Ke2 Qg4 23.f3 Qg2 24.Kd1+-) 22.Ke2 Qe4 (22...Qh5 23.f3 f6 24.b6 Kc8 25.Be6 Qc5+-) 23.Be5 Kb6 (23...Qe5 24.b6 Kd6 25.fe5 Ke7 26.Qb4 Ke8 27.Bb5+-) 24.Bd4 (24.Nc3!? Qe5 25.fe5 Rc8+-) 24...Kc7 (24...Qd4 25.ed4 Rc8 26.Qa3+-) 25.Rc1 e5 26.Bd5 (26.b6 Kc8 27.Be6 Qc6 28.Rc6 bc6 29.b7 Kc7 30.Be5) 26...Kd6 27.Be4 (27.Bc5 Kc7 28.b6 Kc8 29.Bd6 Qc4 30.Qc4 Bc6 31.Be6 fe6 32.Qe6 Rd7 33.Rb8) 27...ed4 28.Qd5 Ke7 29.Qe5! Be6 (29...Be5 30.Rd8 Decoy) 30.Rb8! Rb8 (30...Rb8 31.Rc7 Double attack) 31.Rc7 Kd8 (31...Kf8 32.Bd5 Rd8 33.Be6 d3 34.Kf3 f6 35.Qc5 Rd6 36.Qd6 Ke8 37.Qe7) 32.f5 (32.Qd6 Ke8 33.Qe7) 32...f6 (32...d3 33.Kd3 Ke8 34.Qd6 Bc4 35.Kc4 Ra8 36.Qe7) 33.Qd6 Ke8 34.Qe7 1-0. ClayPigeons (2145) - AmatoareFlory (2110), Rated Classical game, lichess.org, 2020.

4.Ne2 c5 5.Ng3 cb4-/+ 6.a3 b3 (better 6...ba3!? 7.Na3 Nc6-/+) 7.cb3= Nc6 8.Bb5 Qb6 9.Bc6 bc6 10.0-0 Ba6 11.Re1 Bc5 (11...Be7 12.Bf6 Bf6 13.d4=) 12.b4 Bd6 13.Ne2 (13.Bf6 gf6 14.d4 Rg8+=) 13...0-0 (13...e5 14.f4 e4 15.Bf6 gf6 16.Nbc3=) 14.Nbc3 (14.Bf6 gf6 15.d4 Be2 16.Qe2 a5 17.ba5 Ra5=) 14...Rac8 (14...Qb8 15.f4=+) 15.Na4= Qc7 (15...Qd8!?=) 16.Bf6+/- gf6 17.Nd4 (better 17.Ng3+/-) 17...e5? (17...Bh2!? 18.Kh1 Be5=) 18.Qg4 (better 18.Nf5!? Kh8 19.Nd6 Qd6 20.Nc5+-) 18...Kh8+/- 19.Nf5 Qd7?? (better 19...Rg8 20.Qh4 Rg6 21.Nd6 Qd6+-) 20.Qg7 1-0. Mustanglx – manuelrojas, Rated Classical game, lichess.org, 2019.

4.Qf3 Bd6 5.Bf6=+ Qf6 6.Qf6 gf6 7.b5 Be5 (7...a6 8.Nc3=+) 8.c3 c6 9.d4 Bd6 10.Nd2 a6 11.a4?? (better 11.b6=) 11...ab5-+ 12.Rb1? (12.a5-+) 12...e5?? (better 12...ba4 13.Ngf3 a3-+) 13.ab5=+ cb5 (13...Bf5!? 14.Rb3 Bc2=+) 14.de5 (14.Rb5 Ra1 15.Ke2 b6 16.Rb6 Ke7=) 14...Be5= 15.Bb5 Bd7 (15...Ke7 16.Ne2=) 16.Bd7 (16.Ne2 Ra3+=) 16...Nd7= 17.f4 (17.Ne2 Nc5+=) 17...Bd6 (better 17...Bc3!? 18.Ne2 Ba5=+) 18.Rb7 Ra1 (18...Nc5 19.Rb5+=) 19.Kf2 (19.Rb1 Rb1 20.Nb1 Nc5+/-) 19...Ke7 (19...Nc5 20.Rb6 Kd7 21.Kf3=) 20.Rb1 Ra2 21.Ke2 Nc5 22.Ngf3 Bc7 (22...Rc8 23.Ra1 Ne4 24.Rhb1+=) 23.g4 (23.c4 Ne4 24.cd5 Rd8+/-) 23...Ba5 (23...Ne4 24.Rb7 Kd6 25.Rc1=) 24.Rhc1 (24.Ra1 Ra1 25.Ra1 Bc3 26.Ra7 Kd6 27.Rf7 Rb8+=) 24...h5 25.g5 (25.gh5!? Kd6 26.h4+=) 25...fg5= 26.Ng5 f6 27.Ngf3 h4 (27...Rg8=) 28.Nd4 (28.Rb5!? Rc8 29.f5+=) 28...Ne4 (28...Rg8 29.Nf5 Ke6 30.Nd4 Kd6 31.Nf5 Kc7 32.Rb5 Rg2 33.Kf3 Rad2 34.Rc5 Kb6 35.Rd5 Rd5 36.Kg2 Rf5 37.Kh3-/+) 29.Rb7=+ Kf8 (29...Kd6!? 30.Rc2 Rc2 31.Nc2 Nc5= (worse 31...Nc3 32.Kf3+=)) 30.Ne6 (30.N4b3 Rg8 (worse 30...Bc3 31.Kd3 Rd2 32.Nd2 Nc5 33.Kc3 Nb7 34.Kd4+/-) 31.Rb8 Kf7 32.Rg8 Kg8=) 30...Kg8?? (better 30...Ke8 31.Ng7 Kf8 32.Ne6 Ke8 33.Ng7 Kf8 34.Ne6=) 31.Rg7 1-0. FelixMart - bazahra1345, Rated Classical game, lichess.org, 2020.

4.Nf3 a6 5.c4 dc4 (5...Bb4 6.Qa4 Nc6 7.Ne5=+) 6.Bc4 b5 (6...Bd6 7.a3=) 7.Be2= Bb7 (7...Bb4 8.a4=) 8.0-0 (8.a4 Bb4 9.ab5 0-0=) 8...Bb4=+ 9.a3 (9.a4!?=+) 9...Ba5 (9...Bd6 10.a4 b4 11.d4–/+) 10.Nc3 (10.Qc2 Nbd7–/+) 10...c5 11.a4 (11.d3 0-0–/+) 11...b4 12.Na2 Nbd7 13.Qc2 (13.d4 Rc8 14.dc5 Nc5–/+) 13...h6 (13...0-0 14.Nc1–/+) 14.d4 (14.Nc1 Bc7–/+) 14...cd4 (14...Rc8 15.dc5 Nc5 16.Rfd1–/+) 15.Bd4 Bd5 (15...Qe7 16.Qb2–/+) 16.Rfc1. Goldmund,Heike – Bromo,Alexis, FICGS, 2017.

4.Nf3 Bd6 5.d4 (5.a3!?=+) 5...Bb4–/+ 6.c3 Bd6 7.Ne5 (7.Ba3 Nc6–/+) 7...Be5 (7...Nbd7!? 8.Nd7 Qd7–/+) 8.de5=+ Ne4 9.Bd3 (9.Nd2 Nc5=+) 9...0-0 (9...Qg5 10.0-0–/+) 10.Qh5 (10.Ba3 Re8=+) 10...g6 (10...Nc6 11.Ba3 Re8 12.f4=+) 11.Qh6 Qg5 (better is 11...Nc5 12.Be2 Nbd7–/+) 12.Qg5+= Ng5 13.Nd2 (13.Ba3 Re8 14.f4 Ne4 15.Be4 de4+=) 13...f6 (13...h6 14.h4 Nh7 15.Ba3=) 14.c4 fe5 15.cd5 ed5=+ 16.Be5 c6 17.0-0 Nd7 18.f4? Ne5–+ 19.fe5 Be6 20.Rf2 Rf2 21.Kf2 Rf8 22.Kg1 Bf5 23.Be2 Re8 24.Rb1?? b6 25.Nf3?? Nf3 26.gf3 Re5 27.f4 Re3 28.Bf1 Bb1 29.Kf2 Ra3 30.Be2 Ra2 31.Kf3 Ra3 32.Kg4 Bf5 33.Kg5 Ra2 34.Bf1 Rh2 35.Bh3 Rh3 36.Kf6 d4 37.Ke5 d3 38.Kf6 d2 39.Ke5 d1Q 40.Kf6 Qd6 41.Kg5 Rg3 42.Kh4 Rh3 43.Kg5 Qd1 44.Kf6 Qg4 45.Ke5 Re3 46.Kf6 Re6 (46...Qh4) 0–1. Nautiluschess – stealthbomber, ICS blitz, 2000.

4.Nf3 Bd7 5.d3 (5.a3 c5=) 5...a6 (5...Bb4 6.Nbd2-/+) 6.Nbd2 (6.a3 a5=) 6...b5 (6...Bb4 7.Be2-/+) 7.c4 (7.a3 a5=) 7...bc4 8.dc4 c5 (8...Bb4 9.Rc1=+) 9.Qb3 (9.bc5 Bc5 10.cd5 ed5+=) 9...Nc6 (9...cb4 10.Rc1=+) 10.Ne5 (10.bc5 Rb8 11.Qc2 Nb4=) 10...d4 (10...Ne5 11.Be5 cb4 12.cd5 Nd5 13.e4=+) 11.Nc6 Bc6 12.b5 Bd7 (12...ab5 13.cb5 Bd5 14.Nc4 de3 15.Qe3=+ (15.fe3? Ne4 16.0-0-0 Nf2-+)) 13.a4 a5? (13...e5!?=) 14.Nf3 (14.ed4 cd4 15.Bd4 Bb4+-) 14...Bd6 15.Be2 (15.ed4 cd4 16.Bd4 Rc8+-) 15...0-0 (15...e5 16.ed4 ed4 17.0-0=) 16.0-0 (16.ed4 cd4 17.Bd4 Bb4 18.Bc3 Bc5+-) 16...Qc7 (16...e5 17.ed4 ed4 18.Rad1=) 17.b6?? (17.ed4 cd4 18.Bd4 e5+-) 17...Qb7 (17...Rab8 18.ed4 Rb6 19.Qc2=+) 18.Ba3?? (better 18.ed4 Ra6 19.dc5 Bc5 20.Bf6 Rb6 21.Qc3+-) 18...Qf3?? (better 18...de3 19.fe3 Ra6-/+) 19.gf3 (19.Bf3 de3 20.Ba8 Ra8 21.Qe3 Bc6+-) 19...Rfb8 (19...e5 20.b7 Ra6 21.ed4+-) 20.Rad1 (better 20.ed4 Rb7 21.Bc5 Bc5 22.dc5+-) 20...Ra7 (20...Ra6 21.b7 Bc6 22.ed4 Rb7 23.Qc2+-) 21.Bc5 (better 21.ba7 Rb3 22.a8Q Rb8 23.Qa5 Rc8+-) 21...Bc5 22.h3 0-1. Whitehouse,Ryan – NN, NZL Auckland Junior Inter-Club Competit, 2002.

4.Nf3 Nbd7 5.a3 c5 6.b5 Bd6 7.c4 0-0 8.Be2 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nb6 12.Na3 (12.d3 Re8=) 12...Bd7 13.Qb3 Qc7 (13...Qe7 14.Be5=+) 14.h3 (14.Bf6 gf6 15.d3 dc4 16.Nc4 Nc4 17.dc4 Qa5 18.Nd2 Rd8=) 14...dc4 (14...e5 15.0-0=+) 15.Nc4= Nc4 16.Bc4 b6 (16...Nd5 17.0-0=+) 17.0-0 Bc8 18.Bf6 gf6 19.Qb2 Qe7 20.Ra1 Bb8 (20...Bb7 21.Be2=) 21.Ra8 (21.d4 Bb7 22.Qe2 Rc8=) 21...Bb7= 22.Ra1 (22.Ra4 Bf3 23.gf3 Kg7=) 22...Qd6 (22...Rd8!?=+) 23.Qf6+= Bf3 24.gf3 (24.Qf3?? Qh2 25.Kf1 Qh1 26.Ke2 Qa1–+) 24...Qh2 (24...Qd2 25.Kh1 Qf2 26.Rg1 Bg3 27.Qg5 Kh8 28.Rg3+–) 25.Kf1 Qh3 26.Ke2 (26.Ke2 Qg2 27.Qe7+=) 1–0. GuestQJFT – GuestDMNS, freechess.org, 2017.

4.f4 a5 5.b5= c5 6.bc6 (6.Nf3 c4=) 6...Nc6 7.Nf3 Be7 8.Be2 0-0 9.0-0 Qb6 10.Bc3 Bc5 (better 10...Ne4!?=+) 11.Bf6+= gf6 12.Nc3?? (12.d4 Qb2 13.Nbd2 Bb4+=) 12...d4?? (better 12...Be3 13.Kh1 Bf4-/+) 13.Na4 Qa7 14.Nc5 Qc5 15.ed4 Nd4 16.Nd4 Qd4 17.Kh1 Rd8 18.d3 (18.Qe1 Bd7+= (18...Qd2?? 19.Rd1 Qd7 20.Rd7 Bd7 21.Qg3 Kf8 22.Qa3 Kg8 23.Rf3+-)) 18...Ra6 19.Rb1 a4 20.Bf3 Exerts pressure on the backward pawn 20...Rd7 21.Qe1 Kh8? (21...Rc7 22.Rf2+=) 22.Qb4 (better 22.Rb4!? Qc5 23.Rc4+-) 22...Qb4 23.Rb4 Rc7 24.h3 (better 24.c4!?+=) 24...Rc2=+ 25.Bb7 (25.a3!?=+) 25...Bb7-/+ 26.Rb7 Kg7 27.f5 (27.Ra1 Rd6-/+) 27...e5 (27...Ra2 28.fe6 Re6 29.Rf3-/+) 28.Rf3 (28.Ra1 Rd2-/+) 28...Ra8 (28...Ra2!? 29.Rg3 Kh6-+) 29.Rg3 Kf8 30.Rg4 Ra2 31.Rc4 Ra1 (better 31...Rd8!?-/+) 32.Kh2= a3 33.Rcc7 Rd1 34.Rf7 Ke8?? (34...Kg8 35.Rg7 Kh8 36.Rh7 Kg8 37.Rbg7 Kf8 38.Rg4+-) 35.Rbe7 (35.Rh7 Rh1 36.Kh1 a2 37.Rh8) 35...Kd8+- 36.Rh7 a2 (36...Rd3 37.Reg7 Kc8 38.Rh8 Rd8 39.Rd8 Kd8 40.Rg8 Kd7 41.Ra8 a2 42.Ra2 Ke7+-) 37.Reg7 Ke8 (37...Rh1 38.Kg3 Rh3 39.gh3 a1Q 40.Rh8) 38.Rg8 (38.Rh8) 1-0. sezwho (1910) - dovuthu (1830), Rated Classical game, lichess.org, 2013.

4.Bf6 Bb4?? 5.Bd8+- Kd8 6.Qf3 f5 7.a4 Nc6 8.Bb5 Na5 (8...Ne7 9.Nh3 c6 10.Ng5+-) 9.Qh5 g6 10.Qg5 Be7 11.Qh6 c6 (11...Bf6 12.Nc3+-) 12.Bd3 (12.Qg7 Re8 13.Be2 g5+-) 12...c5 (12...Bf6 13.Nc3+-) 13.Qg7 Re8 14.Qh7 Bd7 (14...g5 15.Bb5 Rf8 16.Nf3+-) 15.Qg6 Rf8 16.Nc3 a6 (16...Nc6 17.Nf3+-) 17.Nf3 (better 17.Nd5 ed5 18.Qb6 Ke8 19.Qa5 Rg8+-) 17...Be8 (17...Nc6 18.h4+-) 18.Qe6 Rf6 19.Qb6! Kc8 (19...Rb6 20.Nd5 Decoy) 20.Qa5 (better 20.Bf5 Kb8 21.Qa5 Rf5 22.d4+-) 20...Bd8 21.Qc5 Kb8 22.Qd5 (better 22.Nd5!? Rc6 23.Qf8 Ka7+-) 22...Rc6 23.Qe5 (23.Qe5 Rc7 24.Qe8+-) 1-0. atif_zubair – JusticeOfAngel, lichess.org, 2019.

4.g4 h6 5.a3 a5 6.h3 (6.b5 Nbd7=+) 6...Nbd7 (6...ab4 7.f4-/+) 7.b5=+ Nb6 (7...Bd6 8.Nc3=+) 8.Nf3= a4 9.Rg1 Be7 10.h4 Ne4 (10...0-0 11.g5 hg5 12.Ng5+=) 11.g5 (11.Bg7 Rg8 12.Be5 Nd7=) 11...hg5= 12.hg5 Ng5 13.Bg7 Rg8 14.Ng5 Rg7 (14...Bg5?! 15.Bc3 Qe7 16.Be5=) 15.Nf3 Bf6 (15...Rg1 16.Ng1 e5 17.Nc3-/+) 16.d4 (16.Rg7 Bg7 (16...Ba1?? 17.Rg8 Kd7 18.Rd8 Kd8 19.c3+-) 17.d4 Qe7=) 16...Qe7 (16...Rg1 17.Ng1 e5 18.c3-/+) 17.Nbd2 (17.Rh1 Rg8=) 17...Bd7 (better 17...Rg1!? 18.Ng1 e5-/+) 18.Rg7= Bg7 19.Bd3 (19.c4 dc4 20.Nc4 Nc4 21.Bc4 c5=) 19...c6 (19...e5!? 20.Ne5 Be5 21.de5 Qe5=+) 20.bc6= Bc6 21.Rb1 (21.Ne5 Be5 22.de5 Qh4=) 21...Nd7=+ 22.c4 (22.Rb4!?=+) 22...Qa3-/+ 23.Bc2 (23.Qc2!?-/+) 23...dc4-+ 24.Nc4 Qe7 25.Nfe5 Ne5 26.de5 Rd8 (better 26...Qh4!? 27.Bd3 Qh1 28.Kd2 Qd1 29.Rd1 f5-+) 27.Qg4-/+ Kf8 28.f4? (better 28.Be4-/+) 28...Qc5-+ 29.Nd6?? (29.Qe2-+) 29...Qe3 (29...Rd6 30.Bd1 Qe3 31.Qe2 Qc3 32.Kf1-+) 30.Qe2 Qf4 31.Qf2 (31.Ne4-+) 31...Qe5 32.Kf1 Qd6 33.Rd1 Bb5 34.Rd3 Qe7 (34...Bd3 35.Kg2 Qd5 36.Qf3 Qg5 37.Qg3 Bf1 38.Kf2 Rd2 39.Ke1 Qg3 40.Kd2 Bh6 41.Kd1 Qf3 42.Ke1 Qe2) 35.Ke2 Rd3 36.Bd3 Bd3 37.Kd3 Qd7 (37...Qa3 38.Ke2 Qb2 39.Kf3 Qf2 40.Kf2 a3 41.Ke2 a2 42.Kd2 b5 43.Ke3 a1Q 44.Ke2 Qa2 45.Ke3 Qg2 46.Kd3 Qf2 47.Ke4 f5 48.Kd3 f4 49.Ke4 Qe3) 38.Qd4 (38.Kc2 Qc6 39.Kb1 Qc3-+) 38...Qc6 (38...Qd4 39.Ke2 Qg4 40.Kf2 a3 41.Ke1 a2 42.Kd2 a1Q 43.Ke3 Qad4) 39.Ke2 (39.Qd8 Qe8 40.Qb6-+) 39...Qb5 (39...Bd4 40.Kd3 Qc3 41.Ke2 Qe3 42.Kd1 Bc3 43.Kc2 Qd2 44.Kb1 Qb2) 40.Qd3-+ Qd3 41.Kd3 a3 42.Kc2 (42.Ke3 a2 43.Ke2 a1Q 44.Kf3 Qd1 45.Kg3 Be5 46.Kf2 Qd2 47.Kf1 Bg3 48.Kg1 Qf2 49.Kh1 Qf1) 42...a2-+ 43.Kb3 a1Q 44.Kc2 Qb1! 45.Kb1 b5 46.Kc1 b4 47.Kd1 Bf6 (47...b3 48.Kd2 b2 49.Kc2 f5 50.Kd3 b1Q 51.Kc4 Qc2 52.Kb5 Qd3 53.Kc5 Bd4 54.Kb4 Bc3 55.Kb3 e5 56.Ka4 Qc4 57.Ka3 Qb4 58.Ka2 Qb2) 48.Kc1 Be5 49.Kb1 f5 (49...b3 50.Kc1 f5 51.Kd1 b2 52.Ke2 b1Q 53.Kd2 Qa2 54.Ke3 f4 55.Kf3 Qb3 56.Kf2 Qe3 57.Kf1 Bd4 58.Kg2 Qf2 59.Kh3 Qg3) 50.Kc1 f4 (better 50...b3-+) 51.Kb1 f3 (51...b3 52.Kc1 Bc3 53.Kd1 f3 54.Kc1 f2 55.Kd1 f1Q) 52.Kc1 f2 53.Kc2 (53.Kd1 f1Q 54.Kd2 Bf4 55.Kc2 Qc4 56.Kb2 b3 57.Kb1 Qc1) 53...f1Q 54.Kb3 Qe2 (54...Qd3 55.Kb4 Bc3 56.Kb3 e5 57.Ka4 Qc4 58.Ka3 Qb4 59.Ka2 Qb2) 55.Ka4 Qd3 (55...Qc4 56.Ka5 Bc7 57.Ka4 b3 58.Ka3 Bd6 59.Kb2 Qc2 60.Ka1 Be5) 56.Ka5 (56.Kb4 Bc3 57.Kb3 e5 58.Ka4 Qc4 59.Ka3 Qb4 60.Ka2 Qb2) ½-½. blitzbullet (2465) - Kiskadeez (2460), Rated Classical game, lichess.org, 2018.

4.h3 Nc6 5.b5 Ne7 6.c4 c6 7.Nf3 Ng6 8.d4 Bb4 9.Nc3 Ne4 10.Qc2 (10.Qb3!? Qa5 11.Rc1=) 10...Qa5=+ 11.cd5? (better 11.Rc1=+) 11...Bc3-+ (11...Nc3?! 12.a3 Nb5 13.ab4 Qb4 14.Qd2 Qd2 15.Kd2 ed5 16.Bb5 cb5 17.Rhc1-/+) 12.Bc3 Qc3?? (better 12...Nc3 13.dc6 Nb5 14.Qd2 Qd2 15.Kd2 bc6-+) 13.Qc3=+ Nc3 14.dc6 bc6 15.bc6 0-0 (better 15...Ne7!?-/+) 16.Bd3+= f5 17.0-0 a5 18.a3 Ba6 19.Rfc1 Ne2 (19...Nd5 20.Bb1=) 20.Be2+= Be2 21.c7 (better 21.Ng5!? Rfe8 22.Ra2+=) 21...Bf3= 22.gf3 Rfc8 23.Rc5 (23.Rab1!?=+) 23...Ra7-/+ 24.Rac1 Nh4 25.f4 Nf3 (better 25...Kf7!?-/+) 26.Kg2= Nd2 27.Rc6 Kf7 28.R1c2 Nb3 (28...Ne4 29.R2c4-+) 29.R2c3 (29.a4!?=+) 29...a4-/+ 30.h4 g6 31.f3 (31.R6c4 Nd2 32.Rb4 Ne4-+) 31...h5 32.R6c4 Nd2 33.Rc5 Nb1 (33...Ke7!? 34.Rc2 Nb3 35.R5c4-+) 34.Rc1-/+ Na3 (34...Rb7 35.R1c4 Rb2 36.Kh3 Rb3-+) 35.e4? White prepares the advance d5 (better 35.Ra1 Nb1 36.Rb1 Rcc7 37.Rc7 Rc7 38.Ra1=+) 35...Rb7-+ 36.d5? (36.Ra1 Rb2 37.Kg3 Rb3-+) 36...Rb2 (better 36...ed5!? 37.ed5 Rb2 38.Kh3-+) 37.Kg3 fe4 (37...ed5 38.Rd5 Rc2 39.Rc2 Nc2 40.Rc5-+) 38.fe4 (38.d6 Rd2 39.R1c3 Nb1-/+ (39...Rd6?! 40.Ra3 Rd3 41.Rd3 ed3 42.Kf2-/+)) 38...Nb5 39.Rb5 (39.Rd1 Ke7 40.de6 Ke6 41.Rc6 Ke7 42.Rg6 Rb3 43.Kf2 Rc7 44.Rg7 Ke8 45.Rc7 Nc7 46.Ra1-+) 39...Rb5 40.d6 Ke8 41.e5 a3 42.Ra1 Rb3 43.Kf2 Rb2 (better 43...Kd7!? 44.Ke1-+) 44.Ke3 a2 45.Kd3 Kd7 46.Kc3 Rf2 47.Kb3 Rf4 (better 47...Rf3 48.Kb2 Ra8 49.Kc2-+) 48.Ra2 Rh4 (48...Re4 49.Ra5-+) 49.Kc3 (49.Rf2 Rd4 50.Rf7 Kc6 51.Rf6-+) 49...Re4 50.Rg2 (50.Ra5 h4 51.Kd3-+) 50...Re5 51.Rg6 Kd6 52.Rh6 (52.Kd3 Rc7 53.Rg8 h4-+) 52...Rc7 53.Kd4 Rf5 (53...Rf5 54.Rh8 h4-+) 0-1. b4_Bb2 (1665) - Leo_Lorena (1675), lichess.org, 2020.

4.h3 Nbd7 5.c4 Bb4-/+ 6.cd5 Nd5 (better 6...ed5!? 7.Be2 0-0-/+) 7.Bg7=+ Rg8 8.Bh6?? (better 8.Bb2=+) 8...Rg5 (better 8...Qf6 9.a3 Ba5-+ (9...Qh6?! 10.ab4 Nb4 11.d4-/+)) 9.Bg5+/- Qg5 10.Nf3 (10.a3 Qf6 11.Ra2 Bd6+/-) 10...Qg7 11.Nc3?? (11.Nd4 e5 12.Nc2 e4+/-) 11...Bc3?? (better 11...Nc3 12.Qc2 Nd5-+) 12.dc3+/- Qc3 13.Nd2 Nc5 14.Bc4 (better 14.Rc1 Nd3 15.Bd3 Qd3 16.Qg4+/-) 14...Ne3? (better 14...Ne4!? 15.Qc1 Bd7+/-) 15.fe3+- Qe3 16.Qe2 Qe2 17.Ke2 b6 18.Raf1 Bb7 19.Rhg1 Ke7 20.Rf4 Rg8 21.g4 h5 (21...a6 22.Rc1+-) 22.Rgf1 (22.g5 a6+-) 22...hg4 23.Rf7 Kd6 24.hg4 Rg4 25.Bb5 (25.R1f6 a6+-) 25...Rg2 (25...Bd5 26.Rd1 Ne4 27.Ne4 Re4 28.Kf2+/-) 26.Kd1 (better 26.Ke3 Bd5 27.Rd1+-) 26...c6?? (26...Bd5 27.Nc4 Bc4 28.Bc4+-) 27.Ba4 (better 27.Nc4 Kd5 28.Ne3 Ke5 29.Ng2 cb5 30.Ne3+-) 27...Ba6+/- 28.R1f2?? (better 28.R1f4 Be2 29.Kc2+/-) 28...Rg1 (better 28...Rf2 29.Rf2 Na4-+) 29.Kc2=+ Bd3?? (29...Na4 30.R2f4 b5 31.Ra7 Bc8 32.Rd4 Kc5+/-) 30.Kc3+/- Rc1 (better 30...Rg3 31.R2f3 Rf3 32.Nf3 Be4+/-) 31.Kd4?? (better 31.Kb2 Rh1 32.Ra7+-) 31...e5-+ 32.Ke3 Re1 33.Kf3 e4 (33...Na4 34.Ra7 Nc5 35.Kg3-+) 34.Kg3-/+ e3?? (better 34...Na4 35.R2f6 Ke5 36.Rc6 Re3 37.Kg2 Re2 38.Rf2 Re1-/+) 35.R2f6+- Ke5 (35...Ne6 36.Nf3 Rb1+-) 36.Nf3 Kd5 37.Ne1 (37.Bc6 Kc4 38.Ne1 Kc3+-) 37...Bb5 (37...Ne4 38.Kf3 Nf6 39.Nd3+-) 38.Rf3 (better 38.Rf5 Kc4 39.Bb5 Kb5 40.Ra7+-) 38...Ba4 39.Re3 Bb5 (39...a5 40.Rf4 b5 41.Nf3+-) 40.Nf3 a5 (40...a6 41.Rf4 Ne6 42.Rfe4+-) 41.Rf5 (better 41.Rf4 Nd3 42.Rd4 Kc5 43.Red3 Bd3 44.Rd3+-) 41...Kc4 (41...Kd6+-) 42.Rf4 Kd5 43.Re5 (43.Rd4) 43...Kd6+- 44.Rf6 (44.Rd4 Kc7+-) 44...Kc7 45.Rh5 (45.Rg6 Nd7 46.Re7 c5+-) 45...Bd3?? (better 45...Ne4 46.Kf4 Nf6=+) 46.Rf7 Kd6 47.Rh6 Kd5 48.Rfh7! Kc4 (48...Bh7 49.Rh5 Double attack (49.Rh5 Decoy)) 49.Rh4 (49.Ne5 Kb5 50.Rc7 Be4+-) 49...Kc3 50.R7h5 (better 50.R7h6 Be4 51.Ne5+-) 50...b5 (50...Bc4 51.Rh6 Bd5 52.Ne5+-) 51.Ne5 (better 51.Rc5 Bc4 52.Ne5+-) 51...Ne4 52.Kf4 Nd2 (52...Nf6 53.Rh6 Nd5 54.Kg5+-) 53.Nd3 (53.Rh3 Kb2 54.Rd3+-) 53...Kd3 54.Rh3 (54.Rh3 Kd4 55.Re3+-) 1-0. jolubolu – 91123020, Rated Classical game, lichess.org, 2013.

4.h4 Bb4 5.Bf6 Qf6 6.c3 Nc6 7.a3 (7.Qf3 Qf3 8.Nf3 Bd6-/+) 7...Bd6-+ 8.a4 (8.Bb5 Bd7-+) 8...Na5 9.Na3 a6 10.Nc2 e5 11.Nf3 (11.d3 Bd7-+) 11...Bg4 12.Ng5?? (12.Be2-+) 12...Bd1 13.Rd1 h6 14.Nf3 Nc4 (14...e4 15.Nfd4-+) 15.Nb4 c6 16.Bc4 dc4 17.d3 (17.e4 Qf4 18.0-0 a5-+) 17...0-0-0 (17...e4!? 18.Nd2 Qc3 19.Na2-+) 18.dc4 Bb4 19.Rd8 Rd8 (19...Qd8 20.cb4 Qd3 21.Ne5 Qb1 22.Ke2 Qh1 23.Nf7-+) 20.cb4 e4 21.Nd4 c5! 22.bc5 Rd4 (22...Qe5!? 23.0-0 Qc5 24.Rc1-+) 23.ed4 e3 (better 23...Qd4 24.0-0 Qc4-+) 24.f3 (24.fe3 Qe6 25.Rh3-+) 24...Qd4 25.0-0 e2 26.Rf2 (26.Kh2 ef1Q 27.Kg3 Qe1 28.Kh3 Qeh4) 26...e1Q 27.Kh2 Qef2 (27...Qh4) 28.h5 (28.c6 Qfh4) 28…Qdh4 (28...Qfh4) 0-1. FelixMart - C4ylak, Rated Classical game, lichess.org, 2020.

5.Nc3 Bd6=.

5.Nf3 a6 6.a4=.

5.Nf3 c5 6.c4 (6.Be2 Bd6=) 6...a5 (6...Be7 7.d4=) 7.a4 (7.Bf6 gf6 8.cd5 Qd5+=) 7...Ne4 (7...Qd8 8.Be2+=) 8.Nc3 (better 8.d3 Nd6 9.Be2+=) 8...f5?? (better 8...f6+=) 9.Ne5+– Qe7 (9...Qc7 10.Qh5 Ke7 11.Ng6 hg6 12.Qh8+–) 10.Qh5 (10.cd5?! Nf6 11.Bc4 Nbd7 12.Nd7 Bd7+–) 10...Kd8 (10...g6 11.Ng6! Qf7 12.Ne4 fe4 13.Bh8 hg6+–) 11.Nf7 Kc7 (11...Ke8 12.Nh8 g6 13.Ng6 hg6 14.Qg6 Qf7 15.Qf7 Kf7 16.cd5 Nc3 17.de6 Be6 18.Bc3+–) 12.Nh8 Nc3 (12...g6 13.Qh3+–) 13.Bc3 d4 (13...g6 14.Qh3+–) 14.ed4 cd4 (14...g6 15.b6! Kb6 16.dc5 Ka7 17.Qh3+–) 15.Bd4 e5 (15...g6 16.Be5 Kd8 17.Qg5+–) 16.b6 Kc6 17.Qf3 Kd7 (17...e4 18.Qb3 Kd7 19.c5+–) 18.Qf5 Qe6 19.Qf8 (19.Qe5!? Qe5 20.Be5 Kc6+–) 19...ed4 20.Kd1 Qg4 (20...Qf6 21.Nf7 Na6+–) 21.Be2 Qg2 22.Bf3 (22.Qf7 Kd6 23.Qc7 Ke6 24.Re1 Qe4 25.Bg4 Kf6 26.Qd8 Ke5 27.Nf7 Kf4 28.Qg5) 22…Qf2 1–0. DEFFM – GuestMTXW, freechess.org, 2018.

5.Nf3 c6 6.a4 Bb4 7.c4 (7.Bd3 Qc7=) 7...Ne4 (7...Qe7!?=) 8.Bg7 Rg8 9.Bb2 dc4 10.Qc2 c3?? (better 10...f5+–) 11.dc3+– (11.Qe4?! cb2 12.Ra2 Qd5 13.Qd5 ed5 14.bc6 Nc6 15.Rb2 Bf5+–) 1–0. DEFFM – guestmau, freechess.org, 2017.

5.Nf3 c6 6.a4 cb5 7.ab5+= Qc7 8.c4 dc4 (8...Nbd7 9.cd5 ed5 10.Nc3+=) 9.Be5+– Bd6 10.Bd6 Qd6 11.Bc4 Qb4 12.Ra4 Qd6 13.d4 0-0 14.0-0 Nbd7 15.Bd3 Nb6 16.Ra1 Nbd5?? (better 16...Bd7+–) 17.e4+– Nf4 (17...Bd7 18.ed5 Nd5 19.Nbd2+–) 18.e5 Qe7 19.ef6 gf6 (19...Qf6 20.Nc3+–) 20.Nc3 f5 (20...e5 21.Ra4 Rd8 22.Qc2+–) 21.Qd2 Qd6 22.Bc4 Kh8 (22...Bd7 23.Na4 b6 24.Ne5+–) 23.g3 Rg8 (23...Ng6+–) 24.Ne5 Ng6 (24...Kg7 25.Qf4 f6+–) 25.Nf7 (25.Nf7 Kg7 26.Nd6+–) 1–0. DEFFM – GuestSJHC, freechess.org, 2018.

5.Nf3 Bd6 6.c4+= Ke7 (better is 6...Qe7!?+=) 7.Nc3+/– e5 (7...a6 8.Qb3 Re8 9.Bd3+/–) 8.Nd5 (8.cd5 Re8+–) 8...Nd5 9.cd5 e4 (9...Qf5 10.Qb3 Re8 11.Rc1+–) 10.Ng5 (better is 10.Nd4 Qg4 11.f3 Qh4 12.g3 Bg3 13.hg3 Qh1 14.Qc2+–) 10...f6? (10...Qf5 11.Qh5 Re8 12.Bg7 Rg8+–) 11.Ne4 g5 (11...Rd8+–) 12.Bf6 (12.Bf6 Kf8 13.Bh8+–) 1–0. pierre – fta, internet, 2010.

5.Be2 Bb4 6.Nf3 Qd6 (6...a6 7.ba6 Na6 8.0-0=) 7.a3 Ba5 8.0-0 Bd7 (8...a6 9.Be5 Qe7 10.ba6 Na6 11.c4+=) 9.c4 (9.Be5 Qe7+=) 9...dc4 10.Qa4 b6 (10...Qb6 11.Qc4 a6 12.a4+=) 11.Be5 (11.Qc4 a6 12.Bf6 gf6+=) 11...Qc5 12.Bc4 (better 12.Qc4 Qc4 13.Bc4+=) 12...Nd5? (better 12...c6 13.Be2 cb5=) 13.d4+– Qe7 14.Qb3 (better 14.Qc2+–) 14...f6?? (better 14...c6+–) 15.Bd5+– ed5 (15...c6 16.Bb8 cd5 17.Bg3+–) 16.Qd5 (16.Bc7?! Be6 17.Bg3 Kf7+–) 16...c6 (16...fe5 17.Qa8 Qd8 18.Qe4+–) 17.Qg8 Qf8 18.Qh7 fe5 19.Ne5 cb5 (19...Kd8 20.Rc1 Bf5 21.Qh4 Kc8 22.bc6 b5+–) 20.Qe4 Bc6 (20...Qd6 21.Nd7 Kd7 22.Qa8+–) 21.Nc6 Qe7 22.Qe7 1–0. DEFFM – GuestOweii, freechess.org, 2018.

5.Be2 c5 6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 b6 10.Nf3 Bb7 11.0-0 Nbd7 12.d4 cd4 13.ed4 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

5.Be2 Bd6 6.Nf3=.

5.Nf3 Nbd7=.

5.a3 a5 =+.

5.d3 Bd6 6.Nf3 0-0 7.Nbd2 (7.Be2 Qe7=+) 7...Re8 (7...Nbd7 8.Be2=+) 8.e4 (8.Be2 Nbd7=+) 8...c6 (8...a5 9.b5=+) 9.Be2=+ a5 (9...Nbd7 10.0-0=+) 10.a3 Nh5 (10...Nbd7 11.0-0=+) 11.g3 (11.0-0 Nf4=+) 11...Nf6 12.0-0 Nbd7 13.ed5 (13.Qc2 b5=+) 13...cd5–/+ 14.Re1 b6 (14...Qc7 15.Rc1–/+) 15.Nh4 (15.b5 a4=+) 15...Nf8 16.Rc1 (16.b5 Be6=+) 16...Bd7 17.c4? (better is 17.Nb3!?–/+) 17...ab4–+ 18.ab4 Ba4 19.Nb3 Bb4 20.Bc3 Bc3 21.Rc3 d4 22.Rc1 Ne6 23.Rb1 Nc5 24.Qd2 Bb3 25.f3 Ra2 26.Qc1 Bc2 27.Rb2 Rb2 28.Qb2 Bd3 29.Bd1 Bc4 30.Qc1 b5 31.Nf5 Qa5 32.Kf2 Nd3 33.Kg1 Qe1 (34.Kg2 Nf4 35.gf4 Bf1 36.Kg1 Bh3#) 0–1. belazerus – albert_camus, playchess.de, 2002.

5.Nf3 Bg4 6.Qa4 Qd7 7.Bb5 =+.

5.cd5 ed5 6.Nf3 0-0 7.b5 a6 8.a4 c5 9.bc6 Nc6 10.Be2 Bf5 11.0-0 Nb4 12.Nc3 Nd3 13.Ba3 Ba3 14.Ra3 Qe7 15.Qa1 Rfc8 16.Nd5 Nd5 17.Bd3 Bg4 18.Be2 Nb4 19.Rc3 Bf5 20.Nd4 Bg6 21.Rfc1 Rd8 22.Qa3 a5 23.Rc7 Qe5 24.f4 Qd6 25.Bf3 Bd3 26.Rb7 Ba6 27.Rbc7 Rab8 28.h3 g6 29.R7c5 Nd3 30.R1c3 Rb1 31.Kh2 Nf4 32.Rc6 Qb8 33.Rc7 Nd5 34.Bd5 Rd5 35.Qe7 Rf1 36.Nf3 Rf5 37.Qd7 Qb1 38.Rc8 Bc8 39.Rc8 Kg7 40.Qd4 Kh6 41.Qh4 Kg7 42.Qd8 Rh1 43.Kg3 Rf3 44.Kf3 Rf1 45.Kg3 Qe1 46.Kg4 h5 47.Kg5 f6 48.Qf6 Rf6 49.Rc7 Rf7 50.Rf7 Kf7 51.g4 Qd2 52.Kh6 Qe3 53.g5 h4 54.Kh7 Qh3 55.Kh6 Qa3 56.Kh7 Qa4 57.Kh6 Qg4 58.Kh7 Qg5 59.Kh8 h3 60.Kh7 h2 61.Kh8 h1Q Normal 0-1. carlos78 (2235) - IvoryRedLama (2100), Rated Blitz game, lichess.org, 2015.

5.cd5 Qd5 6.Nc3 Qd8 7.Nf3 0-0 (better 7...Bb4 8.Qa4 Nc6=) 8.Bd3?? (8.a3!?=) 8...Nc6 (better 8...Qd3 9.a3 Nbd7-+) 9.Bb1 (9.b5 Qd3 10.bc6 Qd6=+) 9...Nb4-/+ 10.g4 (10.d4!?-/+) 10...Nd3 (10...Ng4 11.Rg1 f5 12.h3-+) 11.Bd3 Qd3 12.Ne5 Qd8 13.g5 (13.d4 Nd5-/+) 13...Nd5 (13...Nd7 14.d4-+) 14.Nd5 (14.f4 Bd6-+) 14...Qd5 (better 14...ed5 15.f4 c5-+) 15.Qh5?? (15.Rg1 Rd8-/+) 15...g6 (better 15...Qh1 16.Ke2 Qe4-+) 16.Ng6?? (better 16.Qf3 Bg5 17.Rg1 Qf3 18.Nf3-+) 16...fg6 17.Qh6 (17.Qh4 Qh1 18.Ke2 Qf3 19.Ke1-+) 17...Rf7 (better 17...Qh1 18.Ke2 Qf3 19.Kd3 e5-+) 18.h4 (18.Rg1-+) 18...Qf5 (better 18...Qh1 19.Ke2 Qf3 20.Kd3 e5 21.Qh5 Bf5 22.Kc4 Qc6 23.Kb3 Be6) 19.h5 (19.f4 Qe4 20.Rh2 Bb4-+) 19...Bg5 (19...Qf2 20.Kd1 Bb4 21.Bc1-+) 20.hg6 Bh6 (better 20...Qf2 21.Kd1 Bh6 22.gf7 Kf7 23.Rh6 e5-+) 21.gh7 (21.gf7 Kf7 22.Rh6-+) 21...Kh7 22.0-0-0 Qf2 (better 22...Bd7 23.Rh4 Bc6 24.f3 Bf3 25.Rg1-+) 23.Rh6 Kh6 24.Rh1 Kg6 25.Rh8 Kf5 (better 25...Qf1 26.Kc2 Qc4 27.Bc3 Qa2 28.Bb2 Qa4 29.Kc3-+) 26.Rh5 Ke4 (better 26...Kg4 27.Rc5-+) 27.Re5 Kd3 28.Bc3 Qe1 (better 28...Qg1 29.Kb2 Rf1 30.Ka3-+) 29.Kb2 Rd7 (29...Rf1 30.Rg5-+) 30.Re6 Rd6 31.Rg6 (31.Rh6 Rh6 32.Ka3 Qc1 33.Ka4 Bd7 34.Kb3 Qb1 35.Ka3 Ra6 36.Ba5 Ra5) 31...Rg6 32.a3 (32.Ba5 Rb6! 33.Bb6 Qd2 34.Kb1 Qc2 35.Ka1 Qc1) 32...Rg2 (32...Rb6 33.Bb4 Qd2 34.Kb1 Qc2 35.Ka1 Qc1 36.Ka2 Be6) 33.Kb3 (33.a4 Be6 34.a5 Rd2 35.Bd2 Qd2 36.Kb1 Qc2 37.Ka1 Qc1) 33…Rd2 (33...Rd2 34.Ka4 Bd7 35.Ka5 Kc2 36.e4 Rd5 37.ed5 Qc3; 33...Qd1 34.Ka2 Be6 35.Kb2 Qc2 36.Ka1 Qc1) 0-1. Agiant – SquareRootOfMoushi, lichess.org, 2019.

5.Nf3 0-0 6.Qb3 c6 7.Be2 Ne4 (7...dc4 8.Qc4 Nd5 9.a3=) 8.d3 Nd6 (8...dc4 9.Qc4 Nd6 10.Qc3=) 9.c5 Nf5 10.g4 (10.0-0 Nd7+=) 10...Nh4= 11.Nh4 Bh4 12.Nd2 Nd7 13.Nf3 Be7 (13...Bf6 14.Rb1=) 14.g5 (14.0-0 Re8=) 14...Bg5 (14...a5 15.Qc3 e5 16.Qa3=+) 15.Rg1 (15.Bg7!? Kg7 16.Rg1=) 15...Bf6-/+ 16.e4 (16.d4 b6-/+) 16...Qc7 (16...b6 17.e5 Be7 18.d4-/+) 17.Rg3 (17.Bf6 Nf6 18.e5 Nd7=+) 17...a5 (better 17...Qf4-/+) 18.0-0-0? (better 18.Bf6 Nf6 19.e5-/+) 18...ab4 (18...Qf4 19.Rd2-+) 19.Rdg1 (19.Bf6 Nf6 20.e5 Nh5-+) 19...g6 (19...e5 20.Qb4 Rd8 21.d4 ed4 22.ed5 Qf4 23.Kd1 Ra2 24.Bc4-+) 20.h4? (better 20.Bf6 de4 21.Be7 ef3 22.Bf3-+) 20...Nc5 21.Qb4 Bb2 22.Qb2 Qf4 (22...de4 23.Ne5 ed3 24.Bd3-+) 23.Kb1 de4 24.Ne5 (24.Rg4 Qf5 (24...ef3?! 25.Rf4 fe2 26.Qe2=) 25.de4 Ne4-+) 24...Nd3 (24...Na4 25.Ng6 fg6 26.Rg6 hg6 27.Rg6 Kf7 28.Rg7 Ke8 29.Bh5 Rf7 30.Rf7 Qf7 31.Qh8 Ke7 32.Bf7 Kf7 33.de4=) 25.Bd3 ed3 26.h5 Qf5 (26...d2 27.hg6 fg6 28.Nd3-+) 27.Rg5?? (27.Ng4 d2 28.Ka1-/+) 27...Qe4-+ 28.Ng4 (28.Qd2 Qa4 29.Nd3-+) 28...d2 29.Ka1 e5 (better 29...Qe1! 30.Qb1 Qb1 31.Kb1 e5-+) 30.Nf6+- Kg7 31.Ne4 f6 (31...d1Q 32.Rd1 f6 33.Re5 fe5 34.Qe5 Kg8 35.h6 Ra2 36.Kb1 Ra1 37.Ka1 Rf7 38.Rd8 Rf8 39.Qg7) 32.h6! Kf7 (32...Kh6 33.Rh1 Double attack (33.Qd2 Zwischenzug)) 33.Nf6 Kf6 (33...Rd8 34.Rd1 Rd3 35.Nh7 Rda3 36.Re5 Ra2 37.Qa2 Ra2 38.Ka2 Be6 39.Ka3 Ke7+-) 34.Qe5 Kf7 35.Qg7 (35.Qc7 Bd7 36.Qd7 Kf6 37.Qg7 Ke6 38.Re5 Kd6 39.Qe7) 35...Ke8 36.Re5 (36.Re5 Be6 37.Re6 Kd8 38.Qf8 Kc7 39.Qd6 Kb6 40.Rb1 Ka7 41.Qe7 d1Q 42.Qb7) 1-0. carlos78 (2285) - DamnGoodCoffee (2190), Rated Blitz game, lichess.org, 2014.

5.a3 Ba5 6.Nf3 0-0 7.0-0 c5 8.Bc3 (8.c4 b6–/+) 8...Bc7 9.Ng5 (better is 9.Be2–/+) 9...Bh2?? (9...e5 10.Bb5–+) 10.Kh1?? (better is 10.Kh2 e5 11.Be2+/–) 10...Bd6–+ 11.Bf6 Qf6 (11...gf6?? 12.Qh5 h6 13.Qh6 Re8 14.Qh7 Kf8 15.Qf7) 12.Nh7 (12.Bh7 Kh8 13.Qh5–+) 12...Qh4 (13.Kg1 Qh2#) 0–1. ramesis – cindya, net–chess.com, 2006.

5.Nf3 Nc6 6.a3 Ba5 7.Bb5 (7.0-0 0-0=+) 7...Bd7 8.Bc6 (8.0-0 a6 9.Bc6 Bc6–/+) 8...Bc6 9.Ne5 (9.0-0 0-0–/+) 9...0-0 (9...Bb5 10.Ng4–/+) 10.Nc6 bc6 11.0-0 (11.Qf3 Ne4–/+) 11...Rb8 12.Bd4 (12.Ra2 c5–/+) 12...Bb6 13.Be5 (13.Bc3 Qe7–/+) 13...Nd7 14.Bb2 c5 15.Qg4 e5 16.f4 f6 17.Nc3 c6 18.fe5 Ne5–/+ 19.Qg3 Bc7–+ 20.Na4? Rb2! 21.Nb2 Nd3! 22.Qg4 Nb2 23.Rab1 Nc4 24.Rf2 Na3 25.Rb2 Nc4 26.Rb1 Ne5 27.Qe2 Qd7 28.Rb7 Rb8 29.Qa6 Ng4 30.Rf1 Bh2 31.Kh1 Rb7 32.Qa3 Qd6 33.Rf3 Rb1 (34.Qc1 Rc1 35.Rf1 Rf1#) 0–1. IroniteNC – Tanuki, internet, 2005.

5.Nf3 Nc6 6.a3 Bd6 7.Nc3 –/+.

5.Bf6 Qf6 6.c3 Bd6 7.Nf3 0-0 8.0-0 h6 9.Re1 Nd7 10.Bc2 Ne5 11.Ne5 Be5 (11...Qe5!? 12.g3 Qf6-/+) 12.d4 Bd6 13.e4 de4 14.Be4 (14.Nd2 Qh4 15.g3 Qd8 16.Be4 c5=+) 14...Qh4 (14...c5 15.Nd2-/+) 15.h3 f5 16.Bd3 Rf6 (16...c5 17.Bc4=+) 17.Re3 (17.Nd2 Rg6 18.Qf3 Rb8=+) 17...Rg6 18.Qf3 Bd7 (better 18...c5 19.Bc4 cd4-+) 19.Nd2?? (19.Qb7 Rd8 20.Bf1 a5=) 19...Rf8 Black prepares the advance f4 (better 19...Bc6 20.Bf5 Bf3 21.Nf3-+) 20.Nf1?? (20.Qb7 Bf4 21.Rae1 a5=) 20...f4 (better 20...Bc6 21.Re6 Bf3 (21...Re6?! 22.d5-+) 22.Rg6 Be4 23.Bc4 Kh7-+) 21.Re4? (better 21.Bg6 fe3 22.Qe3=) 21...Bc6-+ 22.Nh2 Be4 (22...b5 23.Rae1-+) 23.Be4 (23.Qe4 Rff6 24.Ng4 Rg4 25.hg4-+) 23...Qg5?? (better 23...Rg3! 24.fg3 fg3-+) 24.Bg6 Qg6 25.Ng4 (better 25.Qb7!? a5 26.Nf3+=) 25...h5 26.Re1?? (better 26.Nh2 Rb8 27.Qe2=) 26...hg4-+ 27.Qg4 (27.hg4 c6-+) 27...Qg4 28.hg4 Rf6 29.Re6 (29.Kf1-+) 29…Re6 (29...Re6 30.Kf1 Ba3-+) 0-1. Juamadivarius - Ivochess (1910), Rated Classical game, lichess.org, 2016.

5.c3 Be7 6.Ba3 Ba3 7.Na3 0-0 8.Rb1 (8.Nf3 c5!-/+) 8...Nc6 (8...c5 9.dc5 Ne4 10.Qc2-/+) 9.Bb5 a6 10.Bc6 bc6 11.Nf3 Ne4 12.Qc2 a5 13.Ne5 Ra6 (13...c5 14.0-0-/+) 14.0-0=+ Qf6 (14...f6 15.Nd3=+) 15.f3= Nd6 16.e4 Rb6 (16...Qh4 17.Nd3=+) 17.Rb6= cb6 18.ed5 (18.Nc6 Ba6 19.Rb1 de4 20.Rb6 Ra8+-) 18...cd5 19.f4 (19.Rb1!?=+) 19...Ba6 (19...Qh4-/+) 20.Rf2 (better 20.Nd7!? Qh4 21.g3-/+) 20...Ne4 21.Rf3 Qg6?? (better 21...Rc8-+) 22.Ng6+- hg6 23.c4 Rc8 24.Qa4 (24.Rb3 b5 25.c5 b4+-) 24...Nd2 25.Rf2 (25.Rc3 Nc4 26.Qd7 Na3 27.Rc8 Bc8 28.Qc8 Kh7+-) 25...Ne4 (25...Nc4 26.Rc2 g5 27.Nc4 dc4 28.fg5+-) 26.Rc2 Nd6 (26...dc4 27.Nc4 Rb8 28.Ne5+-) 27.c5 (better 27.cd5!? Rc2 28.Nc2 Bb5+-) 27...bc5 28.Rc5 Rb8 29.h3 (29.Qa5 Ra8 30.Qa4 Ne4+-) 29...Ne4 30.Ra5 Bd3 31.Ra8 Ra8 32.Qa8 Kh7 33.Qb7 (33.Qf8 f6+-) 33...Nd6 34.Qc7 Nb5 (34...Nf5+-) 35.Nb5 Bb5 36.Qf7 Bc4 37.a3 Kh6 (37...Bb3 38.Kf2+-) 38.Qe6 Kh5 39.Qe5 (39.Qg4 Kh6 40.Qh4) 39...Kh6+- 40.Qg5 (better 40.a4!? Kh7+-) 40...Kh7 41.h4 Bb3 42.h5 gh5 43.Qh5 Kg8 44.Qe8 (44.Qf5 Bd1+-) 44...Kh7 45.Qe7 Kg6 46.Qe5 (46.Qe6 Kh7 47.Qh3 Kg8 48.Qb3 Kh7+-) 46...Kh7 47.g4 (47.Qf5 Kg8 48.Qc8 Kf7 49.Qb7 Ke6 50.Qb3 g6+-) 47...Kg8 48.f5 Kh7 49.g5 (49.Qe7 Bc2 50.f6 Kg6 51.Qg7) 49...Kg8 (49...Bd1 50.Qe8 Bh5 51.Qh5 Kg8 52.Qe8 Kh7 53.a4 g6 54.fg6 Kg7 55.Qf7 Kh8 56.Qf8) 50.g6 Bc4 (50...Kf8 51.Qe6 Bc4 52.Qf7) 51.Qe8 1-0. TWW_LONDON – jovicicdragi, lichess.org, 2020.

5.Nd2 0-0 6.Bd3-/+.

5.Nd2 Bd2 6.Qd2 Nc6 (6...Ne4 7.Qd3-/+) 7.Nf3 Ne4 8.Qd1 0-0 9.Bd3 Qf6 10.0-0 e5 (10...Rd8 11.c3=+) 11.Be4 (better 11.c4!? Be6 12.Ne5 Ne5 13.de5+=) 11...de4-/+ 12.de5 (12.Ne5 Ne5 13.de5 Qg6-/+) 12...Qg6 13.Nh4 (13.Ne1 Be6 14.f3 Rfd8-/+) 13...Qg5-+ 14.g3 Bh3 15.Re1 Ne5 16.Be5 (16.Qd4 Qh4! 17.Qe5 Qg4-+) 16...Qe5-+ 17.Rb1 Rad8 18.Qe2 b6 19.Rb5 (19.Red1 c5-+) 19...c5 20.Rb3 Be6 21.Ra3 (21.f4 Qd5-+) 21...a5 (21...Rd7 22.Rb1-+) 22.Qb5 (22.Rb1 Qd6-+) 22...Rb8 (22...Rd6 23.c3-+) 23.Rd1 (23.Rf1 Rfd8-+) 23...Bg4 (better 23...Rfd8 24.Rf1 Rd2-+) 24.Rd2? (better 24.Rb1-+) 24...Qa1 25.Kg2 (25.Qf1 Qf1 26.Kf1 Bh3 27.Kg1-+) 25...Qe5 (better 25...Qc1 26.Rad3 ed3 27.Qd3 b5-+) 26.h3?? (26.Kg1 Qf6 27.Rb3-+) 26...Bf3 27.Nf3 ef3 (27...Qa1 28.Rd6 ef3 29.Kf3=+) 28.Kf3= Qf5 29.Kg2 h5 (29...Qe4 30.Kh2=) 30.f3 (30.Qd7 Qg6+=) 30...h4= 31.e4 (31.gh4 Qg6 32.Kf2 Qf6=) 31...Qg6=+ 32.Re3? (better 32.g4=+) 32...Qg3-+ 33.Kf1 Qh3 34.Rg2 Qh1 (better 34...Rfd8 35.Rd3-+) 35.Kf2? (35.Rg1 Qh2 36.Qb2 f6 37.Qb3 Rf7-+) 35...Qc1 (35...h3 36.Rg1 Qh2 37.Kf1-+) 36.Qc6 (36.Qc4 Rbd8 37.Rd3 Qb2-+) 36...Qc2 (better 36...Rbd8!? 37.Re2 Rd1 38.Rh2-+) 37.Re2 Qa4?? (37...Qc3 38.Qh6 f5 39.Qe6 Rf7 40.ef5 Qd4 41.Re3 Qb2 42.Re2-+) 38.Qh6 (better 38.Qa4 Rfd8 39.Rg4+-) 38...Rfe8?? (better 38...Qd4 39.Kf1 Qa1 40.Kf2 f5 41.Qe6 Rf7 42.ef5 Qf6-+) 39.Qg7 1-0. shelkovnikov (1670) - Nitse (1855), Rated Classical game, lichess.org, 2013.

5.b5 Bg7 6.Nf3 c6 7.Be2 Bd7 (7...cb5 8.Bb5 Bd7 9.Bd3=) 8.bc6 bc6 (8...Nc6 9.0-0=) 9.Nbd2 0-0 10.c4 dc4 11.Nc4 Qc7 (11...Nd5 12.0-0+/-) 12.Ba3 Rd8 (12...Rc8!?+/-) 13.Bd6+- Qb7 14.Ba3 a5?? (14...Qc7 15.Bb4 Qb7+-) 15.Rb1+- Qc8 (15...Qc7 16.Bd6 Qc8 17.Nb6+-) 16.Nd6 Qc7 17.Nc4 (better 17.Rb7 Ne8 18.Rc7 Nc7 19.Nb7+-) 17...Na6 (17...Qc8 18.Nb6 Qb7+-) 18.Bd6+/- Qa7 19.Nb6 Nb4? (19...Ne4 20.Na8 Ra8+/-) 20.Na4?? (20.Na8 Qa8 21.a3 Nbd5+-) 20...Bc8? (better 20...Ne4 21.Bc5 Nc5 22.Nc5 e5+= (22...Na2?? 23.Rb7+-)) 21.Bc5+- (21.Bb4 ab4 22.Nc5 Nd5-/+) 21...Qa6 (21...Qc7 22.Bb6 Qd6 23.Bd8 Qd8 24.a3+-) 22.Nb6 (better 22.Ba6 Ba6 23.Bb4 ab4 24.Rb4+-) 22...Qb7 23.Na8 Qa8 24.Bc4 (24.Bb6!? Rd5 25.a3 Nd7+-) 24...Ba6 25.Ba6 Qa6 26.Ne5 (better 26.Bb4!? ab4 27.Rb4 Qa2 28.Qa4 Qa4 29.Ra4+-) 26...Nfd5+/- 27.a3?? (better 27.Bb4!? ab4 28.Qd3+=) 27...Be5 (better 27...Nc3 28.Rb4 ab4-+) 28.ab4 Nc3 29.Qb3?? (29.Qc2 Nb1 30.Qb1 Bf6 31.ba5 Qa5 32.Ke2 e5=) 29...Nb1 (29...Qe2) 30.Qb1=+ (30.de5? Rd2 31.b5 Qb5 32.Qb5 cb5-+) 30...Bg7 31.Qc2 (31.Qa1 Rb8=+) 31...Rb8 (31...ab4!? 32.f4 Qa1 33.Qd1 Ra8-/+) 32.Qe2 (better 32.ba5 e5 33.f3=) 32...ab4?? (better 32...Qb5=+) 33.Qa6+- b3 (33...Bf8 34.Qc6 h5 35.Ke2+-) 34.Qc6 b2 35.Ke2 b1Q 36.Rb1 Rb1 (36...Rd8 37.Qc7 h5 38.Qd8 Kh7 39.Qd7 Bf6 40.Qf7 Kh6 41.h4 Bg7 42.Rb7 Bd4 43.Qh7) 37.Kf3 (37.Qc8 Bf8 38.Qf8) 37...Rb8+- 38.Qc7 Rf8 (38...Re8+-) 39.Bf8 h5 (39...Bf8 40.e4+-) 40.Qc8 (better 40.Bd6 e5+-) 40...Bf8 41.Qe6 (better 41.e4 Kg7+-) 41...Kg7?? (better 41...fe6 42.Ke4 Kf7-/+) 42.Qd7 (42.Qe5 f6 43.Qc7 Kg8+-) 42...Kg8 43.Qd5 (43.d5 Kg7+-) 43...Kg7 (43...h4 44.Kg4+-) 44.Qe5 Kg8 45.Qf4 (better 45.d5!? Kh7+-) 45...Kg7 46.Qe5 Kg8 47.d5 Kh7 48.d6 Kg8 49.d7 Kh7 (49...f6 50.Qf6 Kh7 51.d8Q Bg7 52.Qde7 Kh6 53.Qeg7) 50.Qe8 (50.d8Q Bg7 51.Qee8 Kh6 52.h4 g5 53.Qg5 Kh7 54.Qf7 Kh8 55.Qgg7) 50...Kg8 (50...Be7 51.Qe7 Kg8 52.d8Q Kh7 53.Qf6 h4 54.Qdh8) 51.d8Q Kh7 52.Qf8 (52.Qf8 g5 53.Qf7 Kh6 54.Qd6) 1-0. chessovolution (1705) - LAWWW (1670), Rated Classical game, lichess.org, 2021.

5.f4 Bb4 6.c3 Bd6 7.Nf3-/+.

5.f4 Bg7 6.h3 (6.Nf3 Nbd7=) 6...h5 (6...Ne4 7.Nf3 Bf6 8.Rg1-/+) 7.g3 (7.Nf3 Ne4=) 7...0-0 (7...Qe7 8.a3=+) 8.g4 (8.Nd2 a6=) 8...h4 (8...Ne4 9.Nf3 Ng3 10.Rg1=) 9.Nf3 c6 (9...Ne4!?=) 10.Nh4+= Nbd7 11.g5 Nh5 (11...Ne4 12.Bd3+=) 12.Be2 (better 12.Rg1+/-) 12...b6? (better 12...Ng3 13.Rh2 a5+=) 13.Bh5+- c5? (better 13...gh5 14.Qh5 a5+-) 14.Bg6! fg6 15.Ng6 Rf7 16.Qh5 (better 16.bc5 bc5 17.h4+-) 16...Nf6?? (16...cb4 17.c3+-) 17.Qh4 (better 17.gf6 Rf6 18.bc5 bc5 19.Ba3+-) 17...Ne4 18.Rg1 (18.Nc3 Nd6+-) 18…Nf2 (18...Nf2 19.Qf2 cb4+-). vickyvictors - in_chess, Rated Classical game, lichess.org, 2013.

5.a3 Bd6 6.d3 Nc6 7.c4 dc4 8.dc4 Qe7 9.Nf4 e5 (9...0-0 10.Qf3-+) 10.Nd3 (10.Nd5 Qd8-/+) 10...e4 11.Nf4 Bf4 12.ef4 0-0 13.Be2 Rd8 14.Qc1 Bg4 15.Qc2 Be2 16.Qe2 Nd4 17.Bd4 Rd4 18.0-0 Rad8 19.Nc3 Qc5 20.Rac1 Qa3?? (better 20...c6-+) 21.Nb5= Qc5 22.Nd4 Qd4?? (better 22...Rd4 23.Rfd1 Rd6=) 23.Rcd1 Qd1 (23...b6 24.Rd4 Rd4 25.Rd1 Rd1 26.Qd1+-) 24.Rd1 (24.Qd1?! Rd1 25.Rd1 Kf8=) 24...Rd1 (24...Re8 25.Qa2 a6 26.Qa5+-) 25.Qd1 h6 (25...Kf8 26.Qa4 b6 27.Qa7+-) 26.Qd8 Kh7 27.Qc7 Ng4 (27...b6 28.Qf7 a5 29.Qa7+-) 28.Qb7 e3 29.fe3 Ne3 30.Qa7 (30.Qe4!? f5 31.Qe3 a5+-) 30...Nc4 31.Qc5 (31.Qf7 Ne3 32.Qe6 Nc2+-) 31...Ne3 32.Qe3 g6 33.h3 Kg7 34.g4 h5 35.Kg2 (35.Qe5 Kg8 36.gh5 gh5 37.f5 Kh7 38.f6 Kg6 39.h4 Kh7 40.Qg3 Kh6 41.Qg7) 35...hg4 36.hg4 Kh6 37.Kg3 (37.f5 Kg7 38.Qe5 Kg8 39.f6 Kh7 40.Qh2 Kg8 41.Qh6 g5 42.Qg7) 37...g5 38.Qe4 Kg7 39.fg5 f6 40.Qf5 (40.Qe7 Kg8 41.gf6 Kh8 42.Qg7) 40…Kf7 (40...Kf7 41.gf6 Ke8 42.f7 Kd8 43.f8Q Kc7 44.Q8c5 Kd8 45.Qfc8; 40...fg5 41.Qg5 Kf8 42.Qf6 Ke8 43.g5 Kd7 44.g6 Kc7 45.g7 Kd7 46.g8Q Kc7 47.Qgf7 Kc8 48.Qh8). Mustanglx – joum, Rated Classical game, lichess.org, 2020.

5.a3 Bd6 6.Ng3 0-0 7.Be2 c5 8.0-0 Nc6 9.f3 Bd7 10.Rf2 (10.f4 d4-/+) 10...Rc8 (10...Bg3 11.hg3 Nh5 12.Kh2-+) 11.Nf1 d4 12.d3 (12.c4 Qb6 13.Qc2 Rcd8-+) 12...de3 13.Ne3 Nd4 14.Bd4 (better 14.Nc4 Bf4 15.g3-+) 14...cd4 15.Nc4 Bf4 16.Rf1?! (16.g3 Rc4! 17.dc4-+) 16...b5 17.Ncd2 (17.g3 Bc7 18.Ncd2 Nd5-+) 17...Be3 (better 17...Nd5!? 18.Qe1-+) 18.Kh1 Nh5 (18...Nd5!? 19.Qe1-+) 19.Ne4 e5 20.Ng3 (20.c4 f5 21.Nf2 Qh4-+) 20...Nf4 (better 20...Ng3 21.hg3 Rc6-+) 21.Nd2 (21.a4 Rc6 (worse 21...ba4 22.Ne4-+; 21...Ne2?! 22.Qe2 b4 23.Ne4-+) 22.Rg1 ba4-+) 21...Qh4 22.Nde4 Rc6 23.Qe1 (23.Rg1 f5 24.Nf1 Ne2 25.Qe2 Bg1 26.Kg1 fe4 27.de4-+) 23...Rh6 24.h3 Nh3! 25.gh3 (25.gh3 Qh3 Mate attack) 25…Qh3 0-1. Mustanglx – kimatosuyka, Rated Classical game, lichess.org, 2019.

5.Ng3 Be7 6.Be2 0-0 7.0-0 c5 8.d3 Nc6 9.Nd2 b6 10.Rb1 Bb7 11.c3 Rc8 12.f3 Qc7 13.e4 de4 (13...Bd6 14.Qe1-+) 14.fe4-/+ Rfd8 15.Nf3 (15.Qc2 Bd6-+) 15...Na5 Black plans c4 16.a3 (16.Qc2-+) 16...c4 17.d4 (17.Nd4 e5 18.Ndf5 cd3 19.Bd3 Nc4-+) 17...Ne4 (17...Be4?! 18.Ne4 Ne4 19.Qc2-+) 18.Ne4 Be4 19.Re1 (19.Ra1 Nb3 20.Ra2 Bd6-+) 19...Bb1 20.Qb1 Nb3 21.Ne5 f6 (21...Bd6 22.Bg4 Be5 23.Re5 Nd4 24.cd4-+) 22.Nf3? (better 22.Bc4 Nc5 23.Ng4-/+) 22...e5 23.de5 fe5 (better 23...Qc5 24.Kh1-+) 24.a4 (24.Ne5 b5 25.Bg4 Qb6 26.Kh1 Rc7-+) 24...e4! 25.a5 (25.Qe4 Nc5 Double attack (25...Nc5 Decoy)) 25...ef3 26.Bf3 ba5 (26...Nd2!? 27.Qc2 Bc5 28.Kh1 Nf3 29.gf3-+) 27.Be4 Nd2 28.Bh7 Kh8 29.Qg6 (29.Qf5 Rf8 30.Qh3 Qf4 31.Bf5 Bh4-+) 29...Qc5 30.Kh1 Re8 (better 30...Qf2 31.Ra1 Rd5 32.Qe6-+) 31.Qg3 (31.Bc1 Qf2 32.Bd2 Qd2 33.Rg1-+) 31…Bd6 (31...Bd6 32.Ba3 Qa3-+) 0-1. Mustanglx - egorich132, Rated Classical game, lichess.org, 2019.

5.a3 0-0 6.Ng3 c5 7.Be2 (7.bc5!? Bc5 8.Nh5=+) 7...cb4-/+ 8.ab4 Bb4 9.0-0 Nbd7 10.c3 Bd6 11.d4 e5 12.Nd2 ed4 13.cd4 a6 14.Nf3 (14.Ba3 Ba3 15.Ra3 Qe7=+) 14...b5 (14...Ne4 15.Qb3-/+) 15.Rb1 (15.Bb5 Bg3 16.hg3 Rb8 17.Bd7 Bd7=+) 15...Bb7 (15...Nb6 16.Qc2-/+) 16.Bc1 Bg3 17.fg3 Ne4 18.Qe1 Rc8 19.Bd3 Nc3 (19...Re8 20.Bd2-/+) 20.Rb2 Nf6 21.Bd2 Nfe4 22.Bc3 Nc3 23.Rc2 b4 24.Ne5 a5 25.Qe2?? (better 25.Qf2-+) 25...Ne2 26.Be2 (26.Re2 Rc3 27.Bb5-+) 26…b3 (26...b3 27.Rb2 a4-+) 0-1. Mustanglx - quintana77, Rated Classical game, lichess.org, 2019.

5.a3=+ c5 6.b5 (6.bc5 Bc5 7.Nf4 Nc6=) 6...c4 7.Ng3 c3 (better 7...Qb6 8.a4 a6=+) 8.Be2?? (better 8.Nc3 0-0 9.Be2+/-) 8...cb2-+ 9.Ra2 Nc6?? (9...0-0 10.Rb2 a6 11.ba6-+) 10.Rb2? (better 10.bc6 Qb6 11.cb7 Bb7 12.a4=+) 10...Na5 11.a4 Nc4 12.Bc4 d4?? (12...dc4 13.0-0-+) 13.ed4?? (13.0-0+/-) 13...Bd7?? (better 13...Qd4 14.Nc3 Qc4-+) 14.c3 b6 15.0-0 Qc7 16.d3 Bd6 17.Bb3 Bg3 (17...0-0 18.Bc4+-) 18.fg3+- Qd6 19.Qf3 Rc8 20.Nd2?? (better 20.g4 0-0 21.Rbf2+-) 20...Rc3+= 21.Nc4 (better 21.Qe3 Qa3 22.Ra2+/-) 21...Qd4-/+ 22.Qf2 Rd3 (22...Qd3 23.Rd2 Qg6 24.Ne5+-) 23.Qd4 Rd4 24.Ne3 (better 24.Rf4 Rd5 25.Re2-/+) 24...a6 (24...Ne4 25.Rd1 e5 26.Rc2-+) 25.h3?? (better 25.ba6 Ke7 26.Re2=) 25...ab5-+ 26.ab5 Bb5 27.Re1 Ne4?? (better 27...Kd7-+) 28.Nc2+= Ng3?? (better 28...Rd2 29.Re4 Ke7+=) 29.Be6 (better 29.Nd4 Bd7+-) 29...fe6?? (29...Re4 30.Bd5 Re1 31.Ne1 Ne2 32.Kf2 Nc3 33.Rb5 Nb5 34.Bc6 Ke7 35.Bb5 Ra8=+) 30.Rb5?? (better 30.Nd4 Bd7 31.Rb3+-) 30...Kf7?? (30...Rd2 31.Rb6 0-0 32.Ne3 Ne2 33.Kh2-/+) 31.Rb6 (better 31.Nd4 Re8 32.Rb6+-) 31...Rf4 (31...Rd2 32.Rb7 Kf6 33.Kh2-/+) 32.Rb7 (32.Rbe6 Rc8 33.Re7 Kf8=) 32...Kg6 (32...Kf6 33.Ne3 h5 34.Kh2-/+) 33.Rbb1 (33.Re3 Nh5 34.Re6 Rf6 35.Ree7=) 33...Kf5?? (33...Re8 34.Rb3 Nf5 35.Rb6-/+) 34.Ne3 (better 34.Kh2 Ne4 35.Nd4 Kf6 36.g3+=) 34...Kg5=+ 35.Rf1?? (35.Ng4 Re8=+) 35...Rd4 (better 35...Nf1 36.Nf1 e5-+) 36.Rf3 Ne2 37.Kh2 Nf4 38.Rg3 (38.Rg3 Kf6 39.Rb7=+). Mustanglx – suatuzunoglu, Rated Classical game, lichess.org, 2020.

5.a3=+ Nc6 6.Ng3 a6 7.Be2 Bd7 8.0-0 0-0 9.d3 h6 10.Nd2 Bd6 11.f3 (11.c4 Qe7+=) 11...Ne7 (11...Bg3 12.hg3 e5 13.f4 ef4 14.Rf4=+) 12.Qe1 c6 (12...e5 13.c4 c5 14.bc5 Bc5 15.d4 ed4 16.Nb3=) 13.Rb1 (13.Bf6 gf6 14.c4 b6+=) 13...b6 14.Bf6 Bc7?? (better 14...gf6!? 15.c4 a5+=) 15.Bg7! Kg7 16.Nh5 Kg6 17.f4 Nf5 (17...Kh7 18.c4+/-) 18.e4+- Qh4?? (better 18...Nd4+-) 19.ef5 (19.ef5 Kh7 20.Qh4+-) 1-0. Mustanglx – dcheel, Rated Classical game, lichess.org, 2020.

5.Bf6 Qf6 6.Qf6 gf6 7.a3 Bd6 8.Bb5 (8.d4 c5-/+) 8...Nc6 9.Nf3 Bd7 10.Bc6 Bc6 11.Nd4 Kd7 (11...Bd7 12.Nc3-+) 12.Nc6 bc6 13.Nc3 Be5 14.Rb1 Bc3 15.dc3 Rab8 16.Rb8 Rb8 17.0-0? (better 17.Kd2!?-/+) 17...Rb2-+ 18.Rc1 Kd6 19.f3 (19.c4 Ra2-+) 19...Kc5 20.e4 (20.Kf2 Kc4-+) 20...Kc4 21.Kf2 Kc3 22.Ke2 (22.Kg3-+) 22...Rc2 23.Rc2 (23.Kd1 Rc1 24.Kc1 c5 25.ed5 ed5-+) 23...Kc2 24.ed5 cd5 25.Ke3 c5 26.f4 c4 27.Kd4 Kb2 (27...c3 28.Kc5-+) 28.a4 c3 29.a5 c2 (29...c2 30.Kc5 c1Q 31.Kd6 d4-+) 0-1. FelixMart – rohitp, Rated Classical game, lichess.org, 2020.

5.Bf6 Qf6 6.Qf6 gf6 7.c3 Be7 8.Bb5 (8.Nf3 Rg8-/+) 8...c6 9.Be2 Nd7 10.Nf3 Ne5 11.0-0 Nf3 12.Bf3 Bd7 13.Na3?? (13.d4 e5-/+) 13...e5 (better 13...Ba3 14.Rab1 0-0-0-+) 14.Nc2 e4 (14...Bf5 15.Rfc1-+) 15.Be2-/+ f5 16.a4 Bd6 17.a5 f4 18.a6 (18.f3 fe3 19.Ne3 f5-/+) 18...b6 (18...ba6 19.Ba6 Rb8 20.Rfb1-+) 19.ef4 Bf4 20.g3? (20.Rad1 Rf8-+) 20...Be5 (20...Bd2 21.Ra3-+) 21.d4? (21.f3 Rd8-/+) 21...Bd6 (better 21...ed3 22.Bd3 Bc3-+) 22.Rab1 0-0 23.Kh1 f5 Black prepares the advance f4 24.Rg1 Kh8 25.Bh5 (25.f4 ef3! 26.Bf3 f4 27.gf4 Rf4-+) 25...f4 26.g4 Rg8 27.h3 Raf8 28.Nb4 Rf6 (28...Rg5 29.Rb2-+) 29.f3 (29.g5 Rff8 30.Bg4 Be8-+) 29...e3 (29...Rh6 30.Kh2-+) 30.Rbe1 (30.g5 Rff8-+) 30...Be8 (30...Rh6 31.Kh2-+) 31.Nd3? (better 31.Be8 Bb4 32.g5-+) 31...Bh5 32.gh5 Rg1 (32...Rh6 33.Rg8 Kg8 34.Rb1-+) 33.Rg1 Rf7 34.Rg4 Rg7 35.Rh4?! (35.Kg2-+) 35...Rg3 36.Nf4 (36.Rg4 e2 37.Rg3 fg3 38.Kg2-+) 36...Rf3 (better 36...Bf4 37.Rf4 e2 38.Rf8 Rg8 39.Rg8 Kg8 40.Kg2-+) 37.Ng6 (37.Nd3 e2 38.Ne1 Rc3 39.Rg4-+) 37...hg6 38.hg6 Kg7 39.Rh7 Kg6 40.Rh8 e2 41.Rg8 (41.Re8 Rf1 42.Kg2-+) 41...Kf7 42.Rh8 (42.Kg2 Rf1 43.Rh8 e1Q 44.Rh7 Kg6 45.Rg7 Kg7 46.h4 Qe2 47.Kh3 Qf3) 42...e1Q 43.Kg2 Qf2 (43...Rf2) 44.Kh1 (44.Kh1 Qf1) 1-0. Mohaned0877 (1990) - ClayPigeons (2100), Rated Classical game, lichess.org, 2020. (=1.e3 e6 2.b4 d5 3.Bb2 Nf6)

5.g4 Nbd7 6.Ne2-+.

5.g4 h6 6.Nh3 (6.Bf6 Qf6 7.Qf6 gf6-/+) 6...Nc6 (6...Nbd7 7.Nf4-+) 7.g5 (7.Bf6 Qf6 8.Qf6 gf6-/+) 7...hg5-+ 8.Rg1 (better 8.Ng5 Bd6 9.Nc3-+) 8...Qd6 (8...Ne4 9.Bg7 Rh7 10.Bb2-+) 9.Ng5 (9.Rg5 Rh7 (worse 9...Qh2 10.Rg7 Ne4 11.Qf7 Kd8 12.f3+-) 10.a3 Ba5 11.Bf6 gf6 12.Qf6 Qf8=+ (12...Qh2 13.Rg2 Qh1 14.Ng5=)) 9...Qh2 (9...e5 10.a3 Bc5 11.Qg3-+) 10.Rg2 (10.Bf6 Qg1 11.Bg7 Qg5 12.Bh8 Bd6-/+) 10...Qh1 (better 10...Qh6!?-+) 11.Bf6 gf6 12.Qf6 Be7?? (better 12...Rf8-/+) 13.Qf7+/- Kd7 (better 13...Kd8!? 14.Ne6 Be6 15.Qe6 Nb4+/-) 14.Qe6+- Kd8 (14...Ke8 15.Qf7 Kd8 16.Qd5 Ke8 17.Nc3+-) 15.Nf7 Ke8 16.Qg6 (16.Qd5 Rh2 17.Rg8 Bf8=) 16...Kd7 (16...Rf8 17.Ne5 Kd8 18.Nc6 bc6 19.Qc6+-) 17.Nh8 (17.Nh8 Qh8 18.d4 Bb4 19.c3+-) 1-0. FelixMart – daviderossiacli, Rated Classical game, lichess.org, 2020.

5.Bb5 Bd7 6.Bd7 Nbd7 7.bc5 Bc5 8.0-0 Rc8 9.d4 (9.Nc3 0-0=+) 9...Bd6 10.Qd3 Qc7 11.Ba3 Ba3 12.Qa3 Qc2 (12...a6 13.Rc1=+) 13.Nbd2= Qc3 (13...Rc3 14.Qa7 b5 15.Qa5+=) 14.Nb3 Qc7 15.Rfc1 Qd8 (15...Qb8 16.Rc8 Qc8 17.Qa7=) 16.Qa7+= b6 17.Rc8 Qc8 18.Rc1 Qd8 19.Qa3 Ne4 20.Ne5 Nb8? (better 20...Ne5 21.de5 Qb8+–) 21.Qa4+– Ke7 (21...Kf8 22.Qa7 Nd6+–) 22.Qa7 Kf6 (22...Nd7 23.Nc6 Kf6 24.Nd8 Rd8+–) 23.Qf7 Kg5 24.Qg7 Kh5 25.Qg4 Kh6 26.Nf7 1–0. DEFFM – GuestFDDQ, freechess.org, 2018.

5.bc5 Bc5 6.c4 0-0 7.Qc2 Bb6 8.Ng5 g6 9.h4 Nc6 10.a3 (10.h5 e5 11.hg6 hg6 12.Ba3+/-) 10...Ne4 (better 10...e5!?=) 11.Ne4 de4 12.Qe4 e5 13.h5 (13.Be5?! Qe8 14.c5 Bc7=+) 13...Bf5 14.Qh4 Na5 (14...g5 15.Qg3+=) 15.hg6+/- Qh4 16.gf7 (16.Rh4!? fg6 17.c5 Bc5 18.Be5+/-) 16...Rf7+= 17.Rh4 Nb3 18.Ra2?? (better 18.Nc3 Na1 19.Ba1+/-) 18...Bb1-+ 19.Ra1 Na1 20.Ba1 Bg6 (better 20...Re7-+) 21.Be5 Rc8 22.Be2 a6 (22...Bc5 23.a4-+) 23.f4 Bc5 24.a4 Be7 25.Rg4 (25.Rh3!?-+) 25...Kf8 26.Rg3? (26.d3 Rd8 27.Kd2 Bb4 28.Kc2-+) 26...Bf6 (better 26...Bh4 27.Kf2 Ke7-+ (27...Bg3?! 28.Kg3 Bc2 29.a5-+)) 27.Bd6 Be7 28.Be7 (28.Be5 Bh4 29.Kf2-+) 28...Ke7-/+ 29.Rh3 (29.d4 b6-/+) 29...Kf8 (29...Bc2 30.d4 Ba4 31.c5-+) 30.g4 (better 30.d4-/+) 30...Kg7?? (better 30...Bc2-+) 31.f5+= Bf5 32.gf5 Rf5 (32...Rc5!?+=) 33.Bg4+/- Rcf8 34.Bf5 Rf5 35.Rg3 (35.e4 Rc5 36.Rc3 Ra5+/-) 35...Kh6 36.Ke2 Rc5 37.Kd3 Ra5 38.Kd4 Ra4 39.Kd5 b5 40.c5 Ra2 41.d4 Rc2 42.e4 b4 43.Rb3 (43.c6!? a5 44.e5 Rf2+-) 43...a5 44.c6 Rc3?? (44...Kg7 45.e5 h5 46.e6+-) 45.Rb1 (better 45.Rc3 bc3 46.c7+-) 45...Rc2 46.Kd6 Kg6 47.d5 h5 48.e5 h4 (48...Rf2 49.e6 Rf8+-) 49.e6 h3 50.e7 h2 51.e8Q Kg5 52.Qh8 Kg4 53.Qg8 Kh3 (53...Kh4 54.Qh7 Kg3 55.Qg6 Kf3 56.Rf1 Rf2 57.Qf5 Ke3 58.Rf2 h1Q 59.Qf4 Kd3 60.Rd2 Kc3 61.Qe3 Kc4 62.Qd3) 54.Qe6 (54.Rb3 Rc3 55.c7 Kh4 56.c8Q Rc8 57.Qg3 Kh5 58.Qh3 Kg6 59.Qg4 Kf7 60.Rf3 Ke8 61.Qc8) 54...Kg2 55.c7 Re2 56.Qg4 (56.Qe2 Kg3 57.c8Q h1Q 58.Qcg4) 56…Kf2 (56...Kf2 57.Qf4 Kg2 58.c8Q Re6 59.de6 h1Q 60.Qg8 Kh3 61.Rh1). alekseishmonov (2160) - almasssss (2235), Rated Classical game, lichess.org, 2019.

5.a3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3 Be7).

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

5.b5 0-0 6.a4 b6 7.c4 Bb7 8.Be2 (---> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4 Be7 7.Be2 0-0 8.a4).

5.Nf3 0-0 6.c4 c6 (6...Nbd7 7.Nc3–/+) 7.Nc3 Nbd7 8.Be2 a6 (8...dc4 9.Bc4 Bd6 10.0-0–/+) 9.0-0 (9.cd5 ed5 10.0-0 Re8–/+) 9...Nb6 (9...dc4 10.Bc4 b5 11.Be2–/+) 10.cd5 cd5 (10...ed5 11.Qb3 Bc5 12.Rac1–/+) 11.Ne5 (11.Qb3 Bd6=+) 11...Nbd7 (11...d4 12.Nb1 de3 13.de3–/+) 12.Ng4 (12.Qe1 Qa5=+) 12...b5 (12...d4 13.Nb1 Ng4 14.Bg4–/+) 13.Bf3 (13.a4 Ng4 14.Bg4 ba4 15.Qa4 a5–/+) 13...Bb7 (13...Ng4 14.Bg4 Nb6 15.Be2–+) 14.Ne2 (14.Nf6 Nf6 (worse 14...gf6 15.Qe1=+) 15.a4 ba4 16.Na4 Ne4 17.Be4 de4–/+) 14...Be7 (14...Ne4 15.a3 Ba5 16.d3–/+) 15.Nd4 (15.Ne5 Rc8–/+) 15...Rb8 (15...Nc5 16.Ne5–/+) 16.Qe1 (16.Nf6 Nf6 (worse 16...gf6 17.d3=+) 17.d3 Rc8–/+) 16...Nc5 (16...Ng4 17.Bg4 Nf6 18.Bf3–/+) 17.Ba3 (17.Ne5 Rc8–/+) 17...Ng4 18.Bg4 Qa5 (18...Bd6 19.Qe2–/+) 19.Bc5 Bc5 20.Nb3 Qb6 21.d4 (21.Nc5 Qc5 22.f5 Qb4–/+) 21...Be7 (21...Bd6 22.Qh4–/+) 22.Rc1 (22.f5 Bc8–/+) 22...Rbc8 (22...Ba3 23.Rc2–/+) 23.Qd2 (23.Rc8 Bc8 24.Bf3 Bd7–/+) 23...Rc1 (23...f5 24.Bf3–/+) 24.Rc1 Rc8 (24...Ba3 25.Rc2–/+) 25.Rc8 Bc8 26.Qc3 (26.Qc2 Bd7–/+) 26...Qd8 27.Na5 (27.Be2 Bd6–/+) 27...Qf8 (better 27...b4!? 28.Qc2 Qa5 29.Qc8 Bf8–+) 28.Qc6 Bb4 29.Nb7 Bb7 (29...h6 30.Nc5–/+) 30.Qb7 Bd2 (30...Qd8 31.f5 ef5 32.Bf5–/+) 31.Kf2 f5 (31...b4!?–/+) 32.Qa6= fg4 (32...Kf7 33.Bh5 g6 34.Be2=) 33.Qe6 Qf7 (33...Kh8 34.Qd5 Qe8 35.Qe5 Qe5 36.fe5= (worse 36.de5 Kg8–/+)) 34.Qc8 Qf8 35.Qe6 Kh8 36.Qd5 b4 (36...Qe8 37.Qe5 Qe5 38.fe5=) 37.Ke2 Bc3 38.Qc4 (38.Kd3 Qc8=) 38...h6 (better 38...Qf5 39.Kf2 g5–/+) 39.a3? (39.Qd5 g6=+) 39...Qa8?? (better 39...Qf5 40.Qa2 ba3–+) 40.Kd3 Qa3 (40...g3 41.hg3 Qa3 42.Qc8 Kh7 43.Qf5 Kg8 44.Qe6 Kf8 45.Qc8 Ke7 46.Qc7 Kf6 47.Qd6 Kf7 48.Qd7 Kg6 49.Qe6 Kh7 50.Qf5 Kg8 51.Qe6 Kf8 52.Qc8 Ke7 53.Qc7 Ke6 54.Qc6 Ke7 55.Qc7=) 41.Qc8–/+ Kh7 42.Qf5 Kg8 43.Qe6 –+. Lais,K – Rosar,H, SEM92 C–T, 1989.

5.Nf3 0-0 6.Bd3 h6 7.0-0=+ Be7 8.Ne5 c5 9.c4 (9.Nc3 c4 10.Be2 a6=+) 9...Nc6–/+ 10.Nc3 Ne5 11.fe5 Ne8 (better 11...Nd7!? 12.Qh5 Bg5–/+) 12.a4 d4 (12...Nc7 13.Qg4=) 13.Ne4+= b6 (13...de3 14.de3 Kh8 15.Qe2+–) 14.ed4+– cd4 15.Qg4 Bb7 16.Rf2 f5 (better 16...g6!?+–) 17.ef6+– Nf6 18.Qe6 Kh8 19.Nf6 Rf6 20.Rf6 Bf6 21.Qf7 Bc6 22.Rf1 Qd7?? (better 22...Qd6 23.Qg6 Kg8+–) 23.Qg6 Kg8 (23...Qf5 24.Qf5 Kg8 25.Qe6 Kh8 26.Rf6 Rg8 27.Rh6 gh6 28.Qh6) 24.Rf6 (24.Rf6 Be4 25.Be4 Qf5 26.Bf5 Re8 27.Qe8) 1–0. Pierre – Vardet, internet, 2020.

5.c4 0-0 6.Ne2 (6.a3 Bd6-+) 6...c6 (6...dc4 7.Nec3-+) 7.Nd4 (7.Qc2 Nbd7-+) 7...Na6 (7...e5 8.Nc2 Bd6 9.d4-+) 8.Qb3 (8.cd5 e5 (worse 8...cd5 9.Ba6 ba6 10.Nc6+=) 9.Nc2 Qd5-/+) 8...e5-+ 9.Nf3 Re8 (9...e4!? 10.cd5 Nd5 (10...cd5?! 11.Ba6 Qd6 12.Be2 ef3 13.Bf3=+) 11.Ba6 ef3-+) 10.cd5 cd5?? (better 10...Qd6 11.Ba6 ba6-/+) 11.Ba6+/- Bd2? (better 11...ba6!? 12.Qb4 d4+/-) 12.Nbd2+- (12.Kd2 Qa5 13.Bc3 Qa6 14.Ne5 Ne4 15.Ke1 Re5 16.Be5 Bg4=+; 12.Nfd2?! ba6 13.0-0 Bh3+=) 12...ba6 13.Ne5 Be6 (13...Qd6 14.Qc3+-) 14.Nc6 Qd6 15.Ne5 (15.Nd4 Rab8 16.Qa3 Qb6+-) 15...Ne4?? (15...Qd8 16.Bd4 Rc8+-) 16.Ne4 (16.Qd1 Bf5 17.g4 Rab8+-) 16...de4 17.Qc3 (17.Nc4 Qe7 18.Qc3 f6+-) 17...Rac8 18.Nc6?? (better 18.Nf7 Qf8 19.Nh6 Kh8 20.Qd4+-) 18...f6-/+ 19.Rd1 (better 19.Rc1 Bd5 20.Ne7 Qe7 21.Qc8 Rc8 22.Rc8 Kf7 23.a3=+) 19...Rc6?? (better 19...Qc6 20.Qc6 Rc6-+) 20.Rd6+- Rc3 (20...Rd6 21.Qc2 Red8 22.Bd4+- (22.Qe4 Rd1 23.Ke2 R8d2 24.Kf3 Bd5 25.Qd5 Rd5 26.Rd1 Rd1-/+)) 21.Bc3 Ba2 (21...Rb8 22.Kd2 Rb6 23.Rd4+-) 22.0-0 (better 22.Ra6 Be6+-) 22...Bc4 23.Rc1 Bd3 (23...Bb5 24.h3+-) 24.Rd7 Rc8 25.Kg2 (25.g4 g5+-) 25...Be2 (25...h5 26.f3+-) 26.Ra7 Bf3 (26...h5 27.Bb2 Rc1 28.Bc1+-) 27.Kg1 (27.Kf1 Rc6+-) 27...Rd8 (27...Be2 28.Re7 Bd3 29.g4+-) 28.Bd4 Rd6 (28...Rb8+-) 29.Rc8 Rd8 30.Rd8 1-0. felixrbran – babson, Rated Classical game, lichess.org, 2013.

5.Qf3 Nbd7 6.Qf4 Bd6 7.Qg5 g6 (better 7...h6 8.Qh4 e5-+) 8.h4?? (better 8.f4-/+) 8...h6-+ 9.Bf6 (9.Qg4 Ng4 10.Bh8 f6-+) 9...Nf6 (9...hg5?! 10.Bd8 Kd8 11.Nf3 gh4 12.Rh4 Rh4 13.Nh4-+; 9...Qf6?! 10.Qf6 Nf6 11.c4-+) 10.Qg4 (10.Qf4 Bf4 11.ef4-+) 10...Ng4 11.h5 g5 (better 11...Qf6 12.Bb5 Bd7 13.Bd7 Kd7 14.Nh3 Qa1 15.0-0-+) 12.Nc3 a6 (12...Qf6 13.Nh3 Bb4 14.Rd1 Bc3 15.Be2 Ne3 16.fe3-+) 13.Be2 e5 (13...Nf6 14.Rb1-+) 14.f3 Nf6 (14...Ne3 15.de3 Bb4 16.0-0-0 Bc3 17.Rd3-+) 15.f4 gf4 16.gf4 ef4 17.ef4 Bf4 18.Nf3 Bg4 (18...Ne4 19.Nb1-+) 19.Nd4 Qe7 (better 19...Be5 20.Bg4 Ng4 21.Nce2 Bd4 22.Nd4 Qe7 23.Ne2-+) 20.0-0-0 c6 (better 20...Qb4 21.Nb3 Qc3 22.Bg4 Ng4 23.Kb1-+) 21.Rhe1 0-0-0 (better 21...Bg3 22.Rg1 Bf2 23.Bg4 Qa3 24.Kb1 Bd4 25.Rge1 Kd8-+) 22.Bg4 (22.Bg4 Qd7! 23.Bd7 Rd7 24.Na4-+). FelixMart – Lemuria, Rated Classical game, lichess.org, 2020.

5.Bf6 Qf6-+ 6.c3 Ba5?? (better 6...Bd6-+) 7.Qa4+/- c6 (better 7...Nc6!? 8.Bb5 Bd7 9.Bc6 Bc6 10.Qa5 b6+=) 8.Qa5+- b6 9.Qa4 Bd7 (9...e5 10.f4+-) 10.Be2 0-0 11.Nf3 c5 12.Qg4 (12.Qf4 Qe7+-) 12...e5 13.Qh4 Qh4 14.gh4 (14.Nh4!? Nc6+-) 14...e4+/- 15.Ne5 Be6 16.Rg1 (better 16.f4!?+/-) 16...f6= 17.Ng4 (17.Bg4 Re8 18.Bh5=) 17...Nc6 (17...h5 18.h3 hg4 19.hg4=+) 18.Nh6 (better 18.f4+/-) 18...Kh8-/+ 19.Ng4 a6 (19...h5 20.Bb5 Rac8-/+) 20.h5?? (20.f3+=) 20...Ne7?? (better 20...f5 21.h3 fg4 22.hg4 Ne5-/+) 21.d3+/- Nf5 22.de4 de4 23.c4 Nd6 24.Na3 Rad8 25.Rc1 (25.Rb1 Nc8+/-) 25...Nf7 26.h6! gh6 (26...Nh6 27.Nh6 Combination; 26...gh6 27.Nf6 Deflection) 27.Nf6+- Ng5 28.Rg5! hg5 29.Ng4?? (better 29.Ne4 h6 30.Nc3+/-) 29...h5 30.Ne5 Bf5 (30...Kg7!?=+) 31.Bh5+= Kg7 32.Nc6 Rd3 33.Nc2 Rh8 34.Be2 Rh2 (better 34...Rd6 35.Ne7 Be6=+) 35.Bf1?? (better 35.Bd3 ed3 36.Na1=) 35...Rd6 36.Ne5?? (better 36.Ne7!? Be6 37.Na3-/+) 36...Rh1 (better 36...Kf6!? 37.f4 ef3 38.Nf3 Rc2 39.Rc2 Bc2 40.Nd2-+) 37.Ke2 Bh3 (better 37...Kf6!? 38.f4 ef3 39.Nf3-+) 38.Re1 Rf1 39.Rf1 Bf1 40.Kf1 Rd2 41.Ne1 Ra2 42.Ng4 (42.Nd7 Rb2 43.f4 a5-+) 42...Ra4 (better 42...b5 43.cb5 ab5-+) 43.Ng2? (better 43.Ne5-+) 43...Rc4 44.Ne5 a5 (better 44...Rc1 45.Ke2 Rc2 46.Kf1 b5-+) 45.Nc4+- b5 (45...b5 46.Na5 b4+-) 0-1. FelixMart – SergeyBR, Rated Classical game, lichess.org, 2020.

5.a3 Be7 6.b5 Na5 7.a4 (7.g5 Ne4 8.d3 Nd6 (8...Ng5? 9.h4+-) 9.Bg7 Rg8=+) 7...b6 (7...0-0 8.Nf3-/+) 8.Nf3=+ Bb7 (8...0-0=+) 9.Bg2? (9.g5!? Ne4 10.Bg7=+) 9...0-0 (9...Ng4 10.Na3-+) 10.Ne5 a6 (10...Nd7-/+) 11.c4 (better 11.d3=+) 11...Nc4?? (better 11...dc4 12.Bb7 Nb7-/+) 12.Nc4+/- ab5 13.Ne5 (better 13.ab5 Ra1 14.Ba1+/-) 13...Nd7? (13...b4 14.d3+=) 14.Nd7 (better 14.ab5 Ra1 15.Ba1+-) 14...Qd7+= 15.Qc2 (15.ab5 Qb5 16.Ba3 Qd7+=) 15...c5 (15...ba4 16.Be5=) 16.0-0 (16.ab5!? Ra1 17.Ba1+/-) 16...b4 (16...Ra4!? 17.Ra4 ba4-/+) 17.d3= Bd6 18.e4 (18.Nd2=) 18...d4 (18...Qc7!? 19.h3 de4 20.de4 c4=+) 19.h3 (19.Nd2 f5 20.gf5 ef5+=) 19...Ra7 (19...Bc6 20.Qe2=) 20.f4 Rfa8 21.Nd2 Ra4 22.e5 Be7? (22...Ra1 23.Ra1 Ra1 24.Ba1=) 23.Nc4 (23.Ra4 Bg2 24.Ra8 Ba8+/-) 23...Bd8?? (23...Ra1 24.Ba1 Ra6 25.Bb2=) 24.Bb7 (24.Ra4 Bg2 25.Raa1+/- (25.Qg2?! Ra4 26.Qc2 Ra6=)) 24...Qb7?? (better 24...Ra1 25.Ba8 Ra8=) 25.Ra4+- Ra4 26.Qa4 b5 27.Nd6 ba4 (27...Qf3 28.Rf3 ba4 29.Rf1+-) 28.Nb7 Be7 29.Nc5! Bc5 30.Rc1 Bf8 31.Bd4 a3 32.Rc8 b3 (32...a2 33.Kf2 g6+-) 33.Bc5 g6 34.Ba3 (34.Ba3 b2 35.Rf8 Kg7 36.Rb8 b1Q 37.Rb1 g5 38.fg5 Kg6 39.Be7 f5 40.gf6 h5 41.gh5 Kg5 42.f7 Kh5 43.f8Q Kg6 44.Rb8 Kh7 45.Qf7 Kh6 46.Rh8) 1-0. rookie01 - Bushwacker (1815), ChessWorld.net, 2007.

5.a3 h6 6.Nf3=+.

5.b5 Ne7 6.d4 c6 7.a3 cb5 8.Bb5 Bd7 9.Bd3 Nc6 10.c4 dc4 11.Bc4 Bd6 12.Bd3 0-0 13.h3 Qe7 (13...Qb6 14.Bc3=+) 14.Qc2 (14.Nc3 Nd5=+) 14...g6 (better 14...Rac8 15.Nc3 h6=+) 15.d5? (better 15.Nc3=) 15...ed5 16.g5 Ne4 17.Be4 de4 18.Bf6 Qe6 19.Nd2 Be5 (19...Rfe8 20.Ne2-/+) 20.Ne4=+ Bf6 (better 20...Rfc8 21.Be5 Qe5 22.Nf6 Kg7-/+) 21.Nf6+/- (21.gf6 Rac8 22.Qb1 Ne5-+) 21...Kh8 22.Ne2 (22.Qc3 Qe5 23.Ne2 Rfd8+=) 22...Ne5+= 23.Nd4 Qd6? (23...Qa6 24.Nd7 Nd7 25.h4=) 24.Rd1?? (better 24.f4!? Bc6 25.fe5 Qe5 26.Rg1 Qe3 27.Ne2+/-) 24...Rac8 (better 24...Qa3 25.Qe4 Qb4 26.Kf1 Qd6 27.Nd7 Nd7 28.Qb7 f6=) 25.Nb5?? (better 25.Qe4!? Ba4 26.Rb1+=) 25...Rc2 (25...Nf3!? 26.Kf1 Bb5 27.Kg2-+) 26.Rd6?? (better 26.Nd6 Bc6 27.e4 Nf3 28.Kf1 Ng5 29.h4=+) 26...Bb5-+ 27.Nh7 (27.Ng4 Nf3 28.Kd1-+) 27...Kh7 (27...Rfc8 28.Rc6 Nf3 29.Kd1 R8c6 30.Nf6 Be2) 28.Kd1 Rf2 (28...Rfc8 29.Rc6 R8c6 30.Rh2 Be2 31.Ke1 Nd3) 29.Re1 (29.Rd2 Nd3 30.Rd3 Bd3 31.Rg1-+) 29...Rc8 30.Rd7 (30.Re2 Be2 31.Ke1 Rh2 32.Rf6 Bf3 33.Rf7 Nf7 34.e4 Rc1) 30...Rcc2 (30...Ba4) 31.Rf7 (31.Rd4 Ra2 32.Rh4 Kg7 33.Rh7 Kh7 34.Re2 Be2 35.Ke1 Nd3) 31...Kg8 (31...Nf7 32.Rf1 Bf1 33.h4 Bd3 34.h5 Rf1) 32.Rd7 Nd7 (32...Bd7 33.Re2 Rce2 34.h4 Ba4 35.Kc1 Rf1) 33.Re2 (33.Rf1 Rcd2 34.Kc1 Nc5 35.Rf2 Nb3 36.Kb1 Bd3) 33…Rfe2 (33...Rfe2 34.a4 Rcd2 35.Kc1 Ba4 36.e4 Rd1; 33...Rce2 34.e4 Rf1) 0-1. EvgeniyR (1615) - Kavuncu (1625), Rated Classical game, lichess.org, 2019.

5.g5 Ne4 6.b5 Ne5?? (6...Na5=+) 7.d4?? (better 7.Be5 Ng5 8.f4+-) 7...Nd7 (7...Nc4 8.Bc4 dc4 9.Ba3 Qg5 10.Bf8 Rf8 11.a4-/+) 8.Bd3 (8.f3 Nd6 (worse 8...Ng5 9.h4+=) 9.Nh3 Be7-/+) 8...Ng5 (8...Qg5 9.Qf3-/+) 9.Nf3 Nf3 10.Ke2?? (10.Qf3!? c6 11.bc6 bc6 12.Nd2-/+) 10...Nb6 (better 10...Qf6-+) 11.Kf3 Qf6 12.Ke2 Bd6 (12...Na4 13.Bc3-+) 13.c4 (13.Ke1 e5-+) 13...dc4 (better 13...e5 14.de5 Be5 15.Be5 Qe5-+) 14.Qc2?? (better 14.Be4-+) 14...cd3 15.Qd3 e5 16.de5 Be5 17.Rd1 (17.Qe4 Bg4! 18.Kf1-+) 17...Bb2 18.Nd2 Ba1 19.Qd7 Bd7 20.Ne4 Qb2 (20...Bg4 21.f3 Qf3 22.Ke1 Qe2) 21.Rd2 Qb5 22.Ke1 Bf5 23.Nd6 Kd8 (23...cd6 24.f3 Bh3 25.Rd4 Bc3 26.Kf2 Qf1 27.Kg3 Qg2 28.Kf4 g5 29.Ke4 f5 30.Kd3 Qd2) 24.Nb5 Kc8 25.Na7 Ra7 26.Rd3 Bd3 27.Kd2 Be5 (27...Ra2 28.Kd3 Rd8 29.Ke4 Rf2 30.h3 f5) 28.Kd3-+ Na4 (28...Bh2 29.a4-+) 29.Ke4 Nb2 (better 29...Bh2 30.f4-+) 30.Ke5 Re8 31.Kd5 Ra5 (31...Ra4 32.e4 Nd3 33.f4 Rd8) 32.Kd4 Ra6 (32...Ra3 33.Kd5 c6 34.Kc5 Re5 35.Kb4 Rea5 36.e4 c5) 33.Kc3 Ra4 (better 33...Nd1 34.Kc2 Nf2 35.e4-+) 34.Kb2 Rb4 (better 34...Rh4 35.h3 Rh3-+) 35.Ka3 Rb5 (35...c5 36.h3 Kd7 37.e4 Ra8) 36.Ka4 (36.h4 c6 37.e4 Kd7 38.f4 Ra8) 36...Rb6 37.Ka5 (37.h3 Kd7 38.e4 Ra8) 37...Re4 (37...Kd7 38.e4 Ra8) 38.a4 (38.f3 Ra6 39.Kb5 Rea4 40.e4 R6a5) 38...Rd6 (38...Re5) 39.Kb5 (39.h3 Rd5) 39...Rd2 (39...Rd5) 40.Kc5 Red4! 41.Kb5 (41.ed4 b6 Double attack) 41...R4d3 (41...c6 42.Ka5 Kc7 43.ed4 Rd4 44.h3 b6 45.Ka6 Ra4) 42.e4 Rd1 (42...Rc2 43.Kb4 c5 44.Kb5 Rb3 45.Ka5 Ra2 46.f4 b6 47.Ka6 Ra4) 43.f4 R3d2 (43...Rd4 44.a5 Re4 45.Kc5 c6 46.Kb6 Rb1 47.Ka7 Ra4 48.a6 Ra6) 44.h4 Ra1 45.e5 (45.a5 Rh2 46.f5 Rh4 47.Kc4 Re4 48.Kc3 Ra3 49.Kd2 Rh4 50.Kc2 Rh2 51.Kb1 Re3 52.a6 Re1) 45...Rda2 (45...Rd4 46.Kc5 Rf4 47.h5 Rc1 48.Kd5 b6 49.a5 Rc5) 46.f5 Ra4 47.Kc5 (47.e6 c6 48.Kc5 Kc7 49.ef7 b6) 47...R4a2 (47...b6 48.Kb5 Kb7 49.e6 c6) 48.Kd4-+ Rc2 49.Ke4 (49.Kd3 Rh2 50.f6 Ra3 51.Kc4 Rh4 52.Kb5 Re3 53.fg7 Re5) 49...Rd1 (49...Ra3 50.e6 Rc4 51.Kd5 Rh4 52.ef7 Ra5 53.Ke6 Re4) 50.f6 Ra2 (50...gf6 51.h5 Rc4 52.Ke3 fe5 53.Ke2 Rh1 54.Kd3 Rd4 55.Kc3 Rh3 56.Kc2 Rg4 57.Kd1 Rg2 58.h6 Rh1) 51.fg7 Rda1 (better 51...Rg2-+) 52.g8Q= (52.g8Q Kd7 53.Qf7 Kc6 54.Qc4 Kb6 55.Qb4 Ka7 56.Qc5 Kb8 57.Qf8 Ka7 58.Qc5 Ka6 59.Qc4 Kb6 60.Qb4 Kc6 61.Qc4 Kd7 62.Qf7 Kc6 63.Qe6 Kc5 64.Qe7 Kc6 65.Qe6 Kb5 66.Qd7 Kb6 67.Qd4 c5 68.Qd6 Kb5 69.Qd7 Ka6 70.Qh7=). Agiant – tramvai, lichess.org, 2019.

5.a4 b6 6.c4 Bb7 7.Nf3 dc4 8.Bc4 Nbd7 9.d4 Be7 10.0-0 0-0 11.Nbd2 c5 12.Qb3 (12.bc6!? Bc6 13.Rc1+=) 12...cd4= 13.Bd4 Nc5 14.Qa2 Nfe4 (14...Qc7 15.Rac1=) 15.Rfd1 Nd2 16.Nd2 (16.Rd2 Ne4 17.Rdd1 Bf6+=) 16...Qc7 (16...Rc8 17.Rac1=) 17.Rac1+= Rac8 (17...Rfd8 18.Nb3+=) 18.Bf1 (better 18.Qa1!?+/-) 18...Rfd8 19.Qa1 Bf8 (19...Rd5 20.Nf3= (worse 20.Bg7 e5 21.Bc4 Kg7 22.Bd5 Bd5-/+)) 20.Bc5 (20.Nb3 Nb3 21.Rc7 Na1 22.Rb7 Nc2=) 20...bc5 (better 20...Bc5!? 21.Be2 h6=+) 21.Nc4+= Ba8 (21...g6 22.b6 Qc6 23.Rd8 Rd8 24.Qa3+/-) 22.Qc3 (22.b6 Qc6+-) 22...g6 (22...Rd1 23.Rd1 Bd5 24.g3+/- (worse 24.Qa5 Qa5 25.Na5 Ra8=; worse 24.Na5 Ra8 25.Nc4 Ra4=)) 23.Qa5+- Qe7 (23...Qa5 24.Na5 Rd1 25.Rd1+-) 24.Qe1 Qh4 (better 24...Bg7+-) 25.g3?? (better 25.a5+-) 25...Qe4-+ 26.f3 Qf3 27.e4?? (better 27.Qe2 Qh1 28.Kf2 Qh2 29.Ke1 Qg3 30.Qf2-+) 27...Be4 28.Rd8 (28.Ne3 Qh1 29.Kf2 Qh2 30.Bg2 Bh6-+) 28...Qh1 29.Kf2 Qh2 (29...Rd8 30.Qe2-+) 30.Ke3 Rd8 31.Ke4 Rd4?? (31...Bh6 32.Kf3 Rd5-+) 32.Kf3= Qh5?? (better 32...g5 33.Qf2 g4 34.Ke2 Re4 35.Ne3 Re3 36.Ke3 Bh6 37.Ke2 Qf2 38.Kf2 Bc1=) 33.Kg2+- Qd5 34.Kg1 (34.Kh2 Bd6 35.Bg2 Qh5 36.Kg1 Bb8+-) 34...h5 35.Ne3?? (35.Bg2 Qd8 36.Qf2 Bg7+-) 35...Qf3? (better 35...Qg5 36.Rc3 Ra4=) 36.Bg2+- Qf6 37.Qf2 (better 37.a5 Ra4 38.b6+-) 37...Qf2 38.Kf2 Ra4 39.Bc6 Rb4 40.Nc4 Be7 (40...Bg7+-) 41.Ne5 (41.b6!? h4+-) 41...Bf6 (41...Bd6 42.Nd3 Rg4+/-) 42.Nd7 (better 42.Rc5!? Rb3 43.Kg2+/-) 42...Bd4= 43.Kf3 Exerts pressure on the isolated pawn 43...Rb3 (43...c4!?+=) 44.Kg2 (44.Ke2 Rb2 (44...Rg3?? 45.b6+-) 45.Kd1 Bf2+/-) 44…g5. zembelek (2025) - AcoLaki (2005), Rated Blitz game, lichess.org, 2015.

5.a4 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.a4 e6 4.b5 c5 5.e3 a5).

5.a4 Bd6 6.Nf3 0-0 7.c4 c5 8.Be2 Nbd7 9.0-0 Nb6 10.cd5 ed5 11.d4 c4 12.Nc3 h6 13.Ne5 Re8 14.f4 Bf5 15.Ba3 Bb4 16.Qc1 (16.Bb2!?-/+) 16...Bc3-+ 17.Qc3 Ne4 18.Qc1 Nd7 (18...Na4!? 19.Bh5 g6-+) 19.Bf3 Ne5 (19...f6 20.Ng4-/+) 20.fe5=+ Bg6 21.Re1 Qg5 22.Bb2 (22.Ra2 f6 23.Be4 A) worse 23...de4 24.Rf2+= (24.Qc4?! Bf7 25.Qe2 Ba2 26.Qa2 Kh7=+); B) 23...Be4 24.ef6 Qf6=+) 22...Rac8 23.Bc3 h5 (better 23...b6!?-/+) 24.Ba5= h4 25.Re2 (25.Bb4 f6+=) 25...h3 26.Be1 Qf5 27.Qc2 (27.a5!?=) 27...hg2=+ 28.Bg2 Qg4 29.Qb2 c3 30.Qa2 Nd2?? (better 30...Ng5 31.Rc2 Bc2 32.Qc2 Ne4-/+) 31.Rd2?? (better 31.Rf2 Nc4 32.Bc3 Ne3 33.Qd2 Ng2 34.Rg2+/-) 31...cd2-+ 32.Qd2 Rc2 33.h3 Qg5 (33...Rd2 34.hg4 Rd3 35.Bd5 Re5 36.Bb7 (36.de5?! Rd5 37.Bc3 Bc2+/-) 36...Ree3 37.a5 Rd4 38.a6+-) 34.Bh4 (34.Kh1 Rd2 35.Bd2-+) 34...Qh4 (34...Rd2 35.Bg5 Be4 36.Be4 de4 37.a5=) 35.Qd1 (35.Qc2 Bc2 36.Kh2-+) 35...Qg3 (35...Qf2 36.Kh1 Qg2) 36.Qg4 (36.Qf3 Qg5 37.h4 Qh4 38.Rf1-+) 36...Qe3 (36...Rg2 37.Kh1 Rh2) 37.Kh1-+ Rg2! 38.Qg2 (38.Qg2 Be4 Pinning (38...Be4 Decoy); 38.Kg2 Be4 Double attack) 38...Be4 39.Rg1 Qh3 0-1. BeepBeepImAJeep (2580) - Maksim_Panov (2340), lichess.org, 2016.

5.c4 dc4 6.Bc4 b6 7.Nf3 Bb7 8.0-0 Bd6 9.Qc2 (9.d4 0-0=) 9...Nbd7 (9...Bf3 10.gf3 0-0 11.Nc3=) 10.d3 (10.Be2 0-0=) 10...Bf3 11.gf3 Ne5 12.Be5 Be5 13.d4 Bd6 14.Nc3 0-0 15.Ne2 Nh5 (15...Rc8 16.Bd3 c5 17.bc6=) 16.f4 Qh4 17.Ng3 Rae8 18.Be2 Ng3 (18...Nf6!?=) 19.fg3+– Qe7 20.Bf3 f6 21.e4 (21.Bc6!? Rd8 22.Rad1+–) 21...e5= 22.fe5 fe5 23.de5 Bc5 24.Kg2 Qe5 25.Rad1 Rd8 26.Rd5 (26.Be2 Kh8+=) 26...Rd5= 27.ed5 Bd6 28.Qe2 (28.a4 Qe3=) 28…Qe2 ½–½. Zaichenko,Andrey – Moody,David, FICGS, 2008.

5.c4 Bc5 6.Nf3 0-0 7.d4 Bb4 8.Nbd2 Ne4 (8...c6 9.a3 Be7 10.Rc1=) 9.a3+= Nd2 (9...Be7 10.Ne4 de4 11.Nd2+=) 10.Nd2 Bd2 11.Qd2 c6 (11...Bd7 12.Qc2+=) 12.a4 (12.c5 Nd7+=) 12...Qg5 13.f4 (13.Rc1 Rd8+=) 13...Qf6 (13...Qh4 14.Qf2 Qf6 15.c5+=) 14.Bd3 (14.c5 Nd7+–) 14...dc4 15.Bc4 cb5 16.ab5 Qh4 (16...b6 17.0-0 Qg6 18.Rf3+–) 17.g3 (17.Qf2 Qg4+=) 17...Qh3 (17...Qd8 18.0-0+=) 18.Bf1 (18.Ba3 Re8+=) 18...Qf5 (18...Qh5 19.Bd3+= (19.Ra5? Ra5 20.Qa5 Qf3–+)) 19.Bd3 Qd5 20.e4 Qd6 (better 20...Qh5!?+=) 21.Ra5+– Ra5 22.Qa5 Rd8 23.0-0 b6 24.Qc3 f6 (24...Bb7 25.d5 Qc5 26.Qc5 bc5 27.de6 fe6 28.Bc4 Be4 29.Be6 Kf8 30.Re1+–) 25.Ra1 (25.Rc1 Bb7+–) 25...Qe7 26.Ra8 (26.Rc1 Bb7+–) 26...Qb7 (better 26...Bb7 27.Ra7 Kh8+–) 27.Ra1 (27.Qa3 Rd7+–) 27...h6?? (27...Qe7 28.Rc1 Bb7+–) 28.Rc1+– Qd7 (28...Nd7 29.Qc7 Qc7 30.Rc7+–) 29.Qc7 White prepares e5 29...Qc7 30.Rc7 Re8 (30...Nd7 31.Bc4 Nf8 32.Ba3+–) 31.Ba3 Nd7 (31...Kh8 32.e5 f5 33.h3+–) 32.e5 Kf7 (32...Nf8 33.Bc4+–) 33.Bd6 (33.f5 fe5 34.fe6 Re6 35.Rc8 ed4+–) 33...h5 (33...fe5 34.de5 g6 35.Ra7+–) 34.Be4 (34.f5 fe5 35.de5 g6 36.fg6 Kg7+–) 34...fe5 (34...Rd8 35.Ra7+–) 35.fe5 Rd8 36.Bc6 g6 (36...g5 37.Kf2+–) 37.Ra7 h4 38.Bc7 (worse 38.gh4 g5 39.hg5 Kg6+–) 38...Rh8 39.Bb6 Ke7 40.Bc5 Kd8 41.g4 h3 (41...Nc5 42.dc5 Rf8 43.b6+–) 42.b6 Nc5 43.dc5 Rf8 44.b7 (better 44.Ra3 Rh8+–) 44...Bb7 45.Rb7 Rf4 46.Bb5 (better 46.Rd7!? Kc8 47.Rd6 Rg4 48.Kf2 Rc4+–) 46...Rg4 47.Kf1 Rg5 (47...Rf4 48.Ke2 Rf5+–) 48.c6 Rf5 49.Kg1 Rg5 50.Kf1 (better 50.Kf2 Rg2 51.Kf3 Ra2+–) 50...Rf5 51.Kg1 Rg5 52.Kh1 (better 52.Kf2 Rg2 53.Kf3 Ra2+–) 52...Re5 53.c7 (better 53.Kg1 Rc5 54.Rd7 Kc8 55.Ba6 Kb8 56.Rb7 Ka8 57.c7+–) 53…Kc8–+ (53...Kc8 54.Bd7 Kd7–+). wg_ffm – Computer, Chess Game, 2017.

5.c4 Nbd7 6.cd5 ed5 7.Nf3 Bd6 8.Be2 0-0 9.0-0 a4 10.a3 Nc5 11.Nc3 Nb3 12.Rb1 Nc5 13.d4 Nce4 14.Na4 Bg4 15.Ra1 Bf3 16.Bf3 Re8 (16...c6 17.Be2+=) 17.Qc2 Qe7 (better 17...Qd7 18.Be2 Ng4 19.Bg4 Qg4+=) 18.Rfc1?? (18.Nc5 Bc5 19.dc5 c6+/-) 18...h6?? (18...Nf2 19.Qf2 Ra4 20.Rc3-/+) 19.h3 (19.Nc5 Ra7+/-) 19...b6 (19...Nf2 20.Nc5 Bg3-/+) 20.Be4 (20.Nc3 Nc3 21.Qc3 Ne4+/-) 20...Ne4 21.Nc3 Qg5 22.Ne4 Re4 23.a4 f5? (23...Re6 24.Kh1+/-) 24.Ba3 (better 24.Qc6!? Rd8 25.Qd5 Kh8 26.Kf1+-) 24...Ba3+/- 25.Ra3 f4 (25...Ra7 26.a5! Ra5 27.Ra5 ba5 28.Qc7+-) 26.Qc6 (26.Qc7 fe3 27.fe3 Rae8 28.Qb6 Re3=) 26...Rae8+/- 27.ef4 Qf4 28.Qd5 Kh8 29.Raa1 (29.Rf1 Rd4 30.Rf3 Qd6 31.Qd6 cd6+/-) 29...Rd4+= 30.Qc6 Rf8 31.Rc2 Ra4 32.Re1 Ra7 33.g3 (33.Rce2 Qf6+=) 33...Qf5= 34.h4 Kh7 35.Rce2 Ra5 Exerts pressure on the isolated pawn 36.Re5?? (better 36.Qc7 Rb5 37.Qc2=) 36...Qf2-+ 37.Kh1 Ra2 38.Qe4 Kh8 39.Re2 (39.Qe2 Re2 40.R1e2 Qg3 41.Re8 Qh4 42.Rh2 Qh2 43.Kh2 Re8 44.Kg3-+) 39...Qf1 40.Kh2 Re2 (40...Rf2 41.Rf2 Rf2 42.Qg2 Qg2) 41.Qe2-+ Rf2 42.Qf2 Qf2 43.Kh3 Qf1 (43...Qf6 44.Re1-+) 44.Kh2 Qf6 (44...Kh7!? 45.Re7-+) 45.Re8 (45.Re2 Qf5 46.Rb2 g5 47.hg5 hg5-+) 45...Kh7 46.Re2 Qd6 (46...c6 47.bc6 Qc6 48.Re3-+) 47.Rc2 Qd5 48.Rb2 c5 49.bc6 Qc6 50.h5 (50.Rf2 b5 51.Rf4 Qc1-+) 50...b5 51.Rb4 (51.Kh3 Qc1 52.Rf2 b4-+) 51...Qc5 52.Rb2 b4 53.Kg2 Qc3 54.Rf2 b3 55.g4 Qc2! 56.g5 (56.Rc2 bc2 Passed pawn) 56...hg5 57.h6 gh6 58.Kh3 Qf2 59.Kg4 b2 60.Kh3 b1Q 61.Kg4 Qbg1 62.Kh5 (62.Kh3 g4) 62…Qfh2 (62...Qd1) 0-1. carlos78 (2225) - eloso (2045), Rated Blitz game, lichess.org, 2014.

5.f4 Nbd7 6.Nf3 Be7 7.a4 c5 8.Be2 0-0 9.0-0 Qc7 10.Na3 b6 11.c4 Bb7 12.Nc2 (12.Ne5 Ne5 13.Be5 Qd8=) 12...Rac8 13.Qe1 Bd6 14.Rc1 Rfe8 15.cd5 (15.Qh4 Be7=) 15...ed5 (15...Bd5!? 16.d3 Bb3=) 16.Ncd4+= Bf8 17.Nf5 d4 (17...Ne4 18.Qh4 f6 19.d3=) 18.N5d4 g6 (18...Qd6 19.Nc6 Nd5 20.Nfe5+/–) 19.Qh4 (19.Nc6 Bg7+/–) 19...Qd6 20.Nc6! Bc6 (20...Bg7!?+/–) 21.bc6+– Rc6 22.Bb5 Bg7? (22...Rcc8 23.Be5 Qe7 24.Bf6 Nf6 25.Be8 Re8 26.Ne5+–) 23.Bc6 (better is 23.Be5 Qd5 24.e4 (24.Bc6?! Qc6 25.Rc4 Qd5+–) 24...Qe4 25.Rfe1+– (25.Bc6?! Qc6 26.Rc4 Qd5+=)) 23...Qc6+/– 24.Rc4 Qd5 25.Rfc1 Ne4 (25...Re4 26.Re4 Qe4 27.Ra1+/–) 26.Bg7+– Kg7 27.Qe1 Nd6 28.R4c3 Re4 (28...c4 29.Qd1+–) 29.d4 (29.Qd1 Re7+–) 29...cd4 30.Nd4 Nc5 31.Qd1 (31.Rd1 Qa8+/–) 31...Nc8 (31...Nf5 32.Nf5 Qf5 33.Ra3+/–) 32.g4 (32.Rb1+–) 32...Kg8 (32...Ne7 33.R1c2+–) 33.h3 (33.Nb3 Qd1 34.Rd1 Nb3 35.Rb3 Rc4+–) 33...Qd8 (33...Nd6 34.Qc2+/–) 34.Qf3 White prepares f5 (34.Nb3!? Qh4 35.Kg2 Qe7 36.Nc5 bc5 37.Rc5 Nd6+–) 34...Qe8 35.Kg2 (35.Nb3 Nd6 36.Nc5 bc5+–) 35...Nd6+/– 36.Nb5! Ndb7 (36...Nb5 37.ab5 Combination) 37.Nd4 (37.Ra3 Ra4 38.Ra4 Na4+/–) 37...Qa4 (37...Nd6!?=) 38.f5 Qa2 39.R1c2 Qd5 40.fg6 (40.Rb2 Qd8+/–) 40...hg6+= 41.Ne2 (41.Rb2!? Qd8 42.Rf2+=) 41...Nd6= 42.Nf4 Qe5 43.Nd3 Nd3 44.Rd3 Nc4 Attacking the isolated pawn on e3 45.Re2 (45.Rcc3 b5=) 45...b5 (better is 45...Qe6!?=) 46.Rd8+/– Kg7 47.Kf2?? (better is 47.Rd7 Qe6 48.Rf7 Qf7 49.Qe4+/–) 47...Ne3–/+ 48.Re3 Qh2?? (better is 48...Re3 49.Qe3 Qf6 50.Ke2 Qd8 51.Qe5 f6 52.Qb5 Qc7–+) 49.Ke1+– Rf4 50.Qg3 Qh1 (50...Qg3 51.Rg3 a4 52.Ra3+–) 51.Kd2 g5 (51...Qf1 52.Re2 Rf6 53.g5+–) 52.Re1 (52.Re5!? Qf3 53.Qf3 Rf3 54.Rg5 Kf6 55.Rb5 Rh3 56.Ra5 Rg3 57.Rf5 Ke7+–) 52...Qb7 (52...Qc6 53.Re5 Qf6 54.Rdd5+–) 53.Qc3 f6 (53...Rf6 54.Qe5 (worse is 54.Qa5 Rf2 55.Re2 Re2 56.Ke2 Qg2 57.Kd1 Qb2+–) 54...Kg6 55.Rd5+–) 54.Re2 (54.Qd3 Rf2 55.Kc1 Qc7 56.Kb1 Qc2 57.Qc2 Rc2 58.Re7 Kh6 59.Rdd7 Rb2 60.Kb2 Kg6 61.Rg7 Kh6 62.Rh7 Kg6 63.Rdg7) 54...Qf7 (54...Ra4 55.Qb3 Qf7 56.Re7 Rd4 57.Rd4 Qe7 58.Qb5+–) 55.Qc2 (55.Qa5 Qb3+–) 55...Ra4 (55...Rf1 56.Rd6 Rh1 57.Qb2+–) 56.Ke1 (better is 56.Ree8 Rf4 57.Ke1+–) 56...Qa7?? (56...Ra1 57.Rd1 Rd1 58.Kd1 Qd5 59.Kc1 Qd6+–) 57.Kd2 (57.Rg8! Kg8 58.Qg6 Qg7 59.Re8) 57...Qf7+– 58.Kc1 (58.Ree8 Rf4 59.Ke1+–) 58...Ra1–+ 59.Kb2 (59.Kd2 Ra2 60.Qa2 Qa2 61.Ke1 Qb3–+) 59...Ra2 60.Kc1 Rc2 61.Rc2 Qe7 (61...b4 62.Rc5 a4 63.Rcd5–+) 62.Rcd2 Qa3 63.Kd1 (63.Kb1 Qb3 64.Ka1 a4–+) 63...Kf7 (63...Qb3 64.Kc1–+) 64.R2d3 Qb4 65.R8d7 (65.R3d7 Ke6–+) 65...Ke6 66.R7d4 Qc5 (66...Qb1 67.Ke2–+) 67.Ke2 (67.Re4 Kf7–+) 67...Qc6 (67...b4 68.Re4 Kf7 69.Rd7 Kg6 70.Ree7 Qc2 71.Ke3–/+) 68.Re3 Kf7 69.Kd3 (69.Red3 b4 70.Kd2 Qc5–+) 69...b4 70.Rc4 Qb5 71.Kd4 Qd7 72.Ke4 Qb7 (72...a4 73.Rc1–+) 73.Kd4 (73.Kd3 a4 74.Re1 Qd5 75.Rd4 Qb3 76.Ke2 a3–+) 73...a4 Black plans b3 74.Rc1 (74.Re1 b3 75.Kc3 a3–+) 74...Qd7 75.Ke4 Kg6 76.Rd3 (76.Rf3 a3 77.Rff1 b3–+) 76...Qe6 77.Kf3 b3 78.Rb1 Qc4 (78...Qc4 79.Ke3 Qf4 80.Ke2 Qh2 81.Ke3 Qh3 82.Kd4 Qg4 83.Kc3 Qc8 84.Kb4 Qc2–+) 0–1. Agrest,Roman (2070) – Sandklef,Ake, Schack–SM, 2008.

6.a4 b6 7.Nf3 Bb7 8.d4 Nbd7 9.Nbd2 Rc8 10.Rc1 Be7 11.Qb3 0-0 12.Be2 cd4 13.Bd4 Nc5 14.Qa2 dc4 15.Nc4 Bf3 16.Bf3 Nd3 17.Ke2 Nc1 18.Rc1 Nd5 19.Rd1 Bc5 20.Ba1 Qh4 21.h3 Nb4 22.Qb3 Nd5 23.Ne5 Qb4 24.Qa2 Nc3 25.Bc3 Qc3 26.Nc6 Qf6 27.g4 h5 28.gh5 Qh4 29.Bg4 Kh8 30.Ne5 Qe7 31.Qb2 Qf6 32.f4 Rfd8 33.Rd8 Rd8 34.Kf3 g5 35.Nf7 Kg7 36.Qf6 Kf6 37.Nd8 gf4 38.ef4 e5 39.fe5 Ke5 40.h6 Kf6 41.Nc6 Kg6 42.h4 Kh6 43.Ne5 Bg1 44.Nd7 Kh7 45.Ke4 Kh6 46.Kd5 Kh7 47.Kc6 Kg7 48.Nb6 Kf6 49.Nc4 Kg6 50.Na5 Kh6 51.b6 Kg7 52.b7 Kf8 53.b8Q Ke7 54.Qc7 Kf6 55.Nc4 Bd4 56.Qd6 Kg7 57.Qd4 Kh6 58.Nd6 Kh7 59.Qf6 Kg8 60.Be6 Kh7 61.Qf7 Kh6 62.Qg7 Kh5 ½-½. zembelek (2020) - konakjan (2180), Rated Blitz game, lichess.org, 2014.

6.a4 d4 7.Nf3 b6 (7...de3 8.fe3 Bd6 9.Be2=) 8.ed4+= cd4 9.Bd4 Bb7 10.Bb2 Nbd7 11.Be2 Bb4 12.0-0 0-0 13.d4 Ne4 14.Nbd2 (14.Ba3 Ba3 15.Ra3 Rc8+/-) 14...Ndf6 (14...Nd2!? 15.Nd2 Bg2 16.Kg2 Qg5 17.Kh1 Bd2+=) 15.Nb3 Rc8 16.Ne5 Qc7 17.Rc1 Rfd8 18.Bd3 h6 19.Qe2 Bd6 20.f3 (20.Rfd1+-) 20...Ng5? (20...Be5 A) 21.Be4 Bh2 22.Kh1 Bf4-+ (22...Ne4?! 23.fe4 Bf4 24.Rc3+=); B) 21.de5 Nc5 22.Bc2 Na4 23.Ba1+= (worse 23.ef6 Nb2 24.Bb1 Nc4=)) 21.f4 (21.c5!? Be7+-) 21...Nge4 22.Rfd1 (22.Rf3 Qb8+/-) 22...Bb4+/- 23.c5 (23.Qe3 Qd6+-) 23...bc5+= 24.dc5 Nc5 25.Nc5 (25.Bd4!? Qe7 26.Bc5 Bc5 27.Nc5 Rc5 28.Rc5 Qc5 29.Qf2+=) 25...Bc5= 26.Kh1 Qb8? (26...Nd5 27.Rf1=) 27.Bb1 (better 27.Nc6 Bc6 28.Bf6 (worse 28.bc6 Rc6 29.Bf6 gf6=) 28...gf6 29.Rc5+/-) 27...Qa8?? (better 27...Rd1 28.Qd1 Rd8=) 28.Rd8+- Rd8 29.Rc5 Bg2 30.Kg1 Be4 (30...Qa7 31.Nd3 (31.Kg2?! Qc5 32.Nc6 Qd5 33.Kg3 Qb3 34.Kh4 Rd7+/-) 31...Bb7 32.Qe5+-) 31.Be4 Ne4 32.Rc6 Nd6 33.Ng4 (33.Ra6!? Qd5 34.Nc6 Rd7 35.Ra5 Nf5+-) 33...Nf5 34.Ne3 Qa7 35.Kf2?? (35.b6 Qd7 36.Qg2 Qd3 37.Nf5 Qd1 38.Qf1 Qg4 39.Ng3 Rd1+-) 35...Nd6?? (better 35...Ne3 36.Qe3 Rd2 37.Kf3 Qe3 38.Ke3 Rb2=) 36.Qd3 (better 36.Kf1+-) 36...Qb8? (36...Qe7 37.Bc3 Nb7+-) 37.Be5 Nf5 (37...Ne8 38.Bb8 Rd3 39.Rc8+-) 38.Qf5 Rd3 (38...ef5 39.Bb8 Rb8 40.Nf5 g6 41.Nh6 Kg7+-) 39.Qd3 Qe8 40.Rd6 f6 41.Rd8 Qd8 (41...Qf8 42.Bf6 Kf7 43.Qd7 Kg6 44.Rf8 Kh5 45.Qg7 e5 46.Qf7) 42.Qd8 Kf7 (42...Kh7 43.Bf6! gf6 44.Qd7 Kg6 45.Qe6 Kh7 46.Qf7 Kh8 47.Nf5 h5 48.Qg7) 43.Qd7 (43.Bf6 gf6 44.Qd7 Kg6 45.Qe6 Kh7 46.Qf7 Kh8 47.Nf5 h5 48.Qg7) 43...Kg6 44.f5 ef5 45.Qf5 (45.Qe8 Kg5 46.h4 Kh4 47.Qg6 fe5 48.Nf5 Kh3 49.Qh5) 45...Kf7 46.Bf6! gf6 (46...gf6 47.Qd7 Mate attack) 47.Qd5 (47.Qd7 Kg6 48.Qe8 Kh7 49.Qf7 Kh8 50.Nf5 h5 51.Qg7) 47...Ke7 (47...Ke8 48.Nf5 h5 49.b6 Kf8 50.b7 Ke8 51.b8Q) 48.Qb7 (48.Nf5 Ke8 49.b6 h5 50.b7 h4 51.b8Q) 48...Kd6 (48...Ke6 49.Qc6 Ke7 50.Nd5 Kf7 51.Qf6 Kg8 52.Ne7 Kh7 53.Qf7 Kh8 54.Ng6) 49.Qa6 (49.Qc6 Ke7 50.Nd5 Kf7 51.Qf6 Kg8 52.Ne7 Kh7 53.Qf7 Kh8 54.Ng6) 49...Kc5 (49...Ke7 50.Nd5 Kf7 51.Qf6 Kg8 52.Ne7 Kh7 53.Qf7 Kh8 54.Ng6) 50.Qa5 (50.Qc6 Kb4 51.Qc4 Ka3 52.Qd3 Ka2 53.Nc4 f5 54.Qc2 Ka1 55.Qb2) 50...Kd4 (50...Kd6 51.Qd8 Ke6 52.Qd5 Ke7 53.Nf5 Ke8 54.b6 h5 55.b7 h4 56.b8Q) 51.Qa6 Kd3 (51...f5 52.Qd6 Kc3 53.Nd1 Kb3 54.b6 Kc2 55.b7 f4 56.b8Q f3 57.Qb2) 52.Qf6 (52.Qc6 Kd4 53.Qc4 Ke5 54.Qd5 Kf4 55.Qf5) 52...Kd2 (52...h5 53.Qf4 Kc3 54.Qc4 Kb2 55.Qb4 Ka1 56.Qb3 h4 57.Nc2) 53.Qh6 (53.Qc6 Kd3 54.Qc4 Kd2 55.Qc2) 53...Kc1 (53...Kc3 54.Qc6 Kb2 55.b6 Kb3 56.Qc4 Kb2 57.Qb4 Ka2 58.Nc4 Ka1 59.Qb2) 54.Qf4 Kb2 55.Qf3 (55.Qb4 Ka1 56.Nc4 Ka2 57.Qb2) 55...Ka3 56.Qe2 Kb4 57.Qc4 Ka5 (57...Ka3 58.b6 Kb2 59.Qb4 Ka2 60.Nc4 Ka1 61.Qb2) 58.Qc3 (58.h4 Kb6 59.Nd5 Kb7 60.Qc7 Ka8 61.Nb6) 58...Kb6 59.Qc6 (59.Nd5 Kb7 60.Qc7 Ka8 61.Nb6) 59...Ka5 60.Qc5 (60.Nd5 Ka4 61.Qc4 Ka3 62.Qb4 Ka2 63.Nc3 Ka1 64.Qa3) 60...Ka4 61.b6 Kb3 62.b7 Ka4 63.b8Q (63.Qd5 Ka3 64.b8Q Ka4 65.Qbb3) ½-½. BeepBeepImAJeep (2745) - GABUZYAN_CHESSMOOD (2785), lichess.org, 2020.

6.a4 Bd6 7.Nf3=.

6.a4 0-0 7.Nf3 c5 8.Be2 b6 9.0-0 Bb7 10.d4 dc4 11.Bc4 Nbd7 12.Nbd2 Rc8 13.Rc1 cd4 14.Nd4 Nc5 15.Be2 e5 (15...Qc7!?=) 16.Nf5+= g6 17.Ne7 (17.Nh6 Kg7 18.Ng4 Qd5+/-) 17...Qe7= 18.Nc4 Rfd8 19.Qe1 Qe6 (19...Nfd7 20.Qd1=) 20.Be5 (20.Ne5 Na4 21.Bd4 Bd5+=) 20...Nfe4 21.Bd4 (21.f3 Nd2 22.Nd2 Qe5=) 21...Na4 (21...Nb3 22.Rd1 Nd4 23.ed4 Rc4=+) 22.Qd1 (22.Ne5 Rc1 23.Qc1 Rc8+/-) 22...Nac5 (better 22...Nec3 23.Bc3 Rd1 24.Rfd1 Nc3 25.Rc3 Rc5-+) 23.Qc2 a4 (better 23...Nd7+=) 24.Qb1?? (better 24.f3 Nf6 25.Nb6 Qb6 26.Bc5+/-) 24...Nb3-/+ 25.Nb6? (better 25.Qb2 Bd5 26.Nb6 Rc1 27.Rc1-/+) 25...Rc1-+ (25...Nc1?! 26.Rc1 Rc1 27.Qc1 Rd4 28.ed4 Qb6 29.Qa1-+) 26.Rc1 Nc1 (better 26...Nd4!? 27.ed4 Qb6 28.Qd3 Qd4 29.Qd4 Rd4 30.f3-+) 27.Qc1 a3?? (better 27...Rd4 28.ed4 Qb6-+) 28.Qa3 (better 28.Bc4 Qf5 29.Qc2=+) 28...Rd5?? (better 28...Rd4 29.ed4 Qb6-/+) 29.Nd5+- Qd5 (29...Bd5 30.Qa5 Qd7+-) 30.Bf3 (30.Qe7 f6 31.f3 Qf7 32.Qd8 Qf8 33.Bc4 Kg7 34.Qc7 Kh6 35.fe4 Ba8+-) 30...f5?? (better 30...Qb5 31.h4 Nd2 32.Bb7 Qb7+-) 31.g3 (better 31.Qe7 Qf7 32.Qe5+-) 31...Qb5 (31...Kf7 32.b6 Qd7+-) 32.Qe7 Qb1 33.Kg2 Nd2 (33...Nf6 34.Qe6 Kf8 35.Bc5 Kg7 36.Qe7 Kh8 37.Qf6 Kg8 38.Qf8) 34.Qg7 1-0. BeepBeepImAJeep (2745) - The_Evergreen (2415), lichess.org, 2020.

6.Nf3 0-0 (6...Nbd7 7.Nc3=) 7.Be2 Bd7 (7...Nbd7 8.0-0=) 8.d4 (8.Nc3 c6+=) 8...Bb4 (8...a4 9.Nc3+=) 9.Nbd2+= dc4 10.Bc4 Ne4 (10...c6 11.a4+=) 11.0-0 (11.a3 Bd2 12.Nd2 Nd6+=) 11...Nd6+= 12.a4 Nc4 13.Nc4 c6 14.bc6 Bc6 15.Nfe5 Bd5 16.Na3 (16.f3!?+=) 16...Nc6 (16...Nd7 17.Nd3=+) 17.Nd3= Qg5 18.Nf4 Be4 (18...Rfc8 19.Nd5 ed5 20.Rc1=) 19.f3 Bg6 (19...Bd5 20.Bc1 Qf6 21.Bb2=) 20.Qe2 Bd6 (20...Bf5 21.g3+=) 21.Ng6 hg6 22.e4 (22.Nc4 Rfd8+=) 22...Bf4= 23.Nc4 Rad8 24.Rad1 (24.Rfd1 Rd7 25.g3 Rfd8=) 24...b5= 25.Ne5?? (better 25.ab5 Qb5 26.Rf2=) 25...Ne5-+ 26.de5 ba4 27.Rd8 (27.Qc2 Rb8 28.Ba3 Qe5-/+) 27...Qd8 (27...Be3 28.Kh1 Rd8 29.Rd1-+) 28.g3-/+ Qd2 (28...Qb6 29.Kh1 Be3 30.Ra1-+) 29.Rf2 Qe2 30.Re2 Bg5 31.Ba3 Rb8 32.Bd6?? (better 32.f4 Rb1 33.Kf2=+) 32...Rb1-+ 33.Kf2 (33.Kg2 Bc1 34.Kh3-+) 33...Bd8 (better 33...Bc1-+) 34.Ra2=+ Rb3 (34...g5 35.Kg2=+) 35.Ra4 (35.h4 g5 36.hg5 Bg5=) 35...Rb2=+ 36.Kg1 Bb6 37.Kh1. tpape (2040) - revoltp (2090), Rated Blitz game, lichess.org, 2015.

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

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

5.Nf3 c6 6.a3 Ba5 7.a4 Bd7 8.Be2 b6 9.0-0 0-0 10.Ne5 c5 (10...a6 11.f4=) 11.c4+= dc4 12.Bc4 Nd5 13.Qg4 f6 14.Nd7 Nd7?? (better 14...Qd7 15.e4 Nc7+/-) 15.Qe6+- Kh8 16.Bd5 Re8 17.Qh3 Rc8 18.d4 Bb4 19.Rd1 cd4 (19...Qe7 20.dc5 Nc5 21.Rd4+-) 20.Rd4 Bc5 21.Be4 h6 (21...Re4 22.Re4 f5+-) 22.Rd7 Re4 23.Rd8 Rd8 24.Nd2! Rd2 25.Qc8 Kh7 26.Qf5 Kg8 (26...g6 27.Qe4 Rb2 28.Qb7 Kg8 29.Rd1+-) 27.Qe4 Rb2 28.Rd1 a6 29.Rd8 Bf8 30.ba6 Ra2 31.Qd5 Kh7 32.Qa2 (32.Qa2 Kg6 33.Rf8 b5 34.Qb1 Kg5 35.Qb5 Kg6 36.g4 Kh7 37.Qf5 g6 38.Qd7) 1-0. onur604 (2320) - asdrubcaz (2295), Casual Rapid game, lichess.org, 2021.

5.Nf3 Bd7 6.a3 Bd6 7.c4 c6 8.a4 cb5 9.ab5 0-0 10.Bd4 a5 11.c5 Be7 12.Ne5 (12.Qc2!?+=) 12...Ne4=+ 13.Qc2 Qc7 (13...f6 14.Nd7 Nd7 15.c6 bc6 16.bc6=) 14.Nd7 (better is 14.Bd3!?=) 14...Nd7=+ 15.c6 bc6 16.bc6 (16.Qc6 Qd8 17.Nc3 Nec5 18.Bc5 Nc5=+) 16...e5–/+ 17.Bb2 Ndf6 (17...Rfc8 18.Bb5 Rcb8–/+) 18.d4?? (better is 18.f3 Nc5 19.Qf5=+) 18...Bb4–+ 19.Kd1 (19.Ke2 Ra6 20.Qb3 Rc6 21.Na3–+) 19…Ng4 (20.Bd3 Ngf2 21.Ke2 Nh1 22.Be4 de4 23.Qe4 f5 24.Qd5 Kh8–+) 0–1. gregorgysi (2280) – fifteenminutesofgame (2400), net–chess.com, 2004.

5.Nf3 Nfd7 6.Bg7+– Rg8 7.Bb2 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 (10...Nf6 11.Bd4+–) 11.g3 Qa5 (11...Nf6 12.Nc3+–) 12.Bb2 cb5 13.Bd3 Nc5?? (better 13...h5+–) 14.Bh7 Rg7 (14...Rg6 15.Bg6 fg6+–) 15.Bg7 Na4 (15...Qd8 16.Nc3+–) 16.Ng5 Nc6 17.Qh5 Bd2 (17...Nd8+–) 18.Nd2 Nc5 19.Qf7 Kd8 20.Bf6 Ne7 21.Qe7 1–0. DEFFM – GuestKYPD, freechess.org, 2019.

5.Nf3 Ne4 6.Bg7 Rg8 7.Bb2 Qd7 8.a3 (8.Ne5 Qe7+/-) 8...Ba5 (8...Bd6 9.Ne5 Qe7 10.Qh5+/-) 9.Ne5+- Qe7 10.Qh5 Nf6 11.Qh4 Nbd7 12.Nd7 Nd7 13.Qh7 Qg5 (13...Qf8 14.h4+-) 14.h4 Qg6 (14...Qg4 15.Rh3 Nf8 16.Qd3+-) 15.Qg6 fg6 16.g4 c6 17.h5 g5 (17...gh5 18.gh5 e5 19.h6+-) 18.h6 Nf8 (18...e5+-) 19.h7 Nh7 20.Rh7 cb5 (20...Bd7 21.bc6 Bc6 22.Bf6+-) 21.Bb5 (21.Bb5 Kf8 22.Be5+-) 1-0. DEFFM – GuestCLKK, freechess.org, 2021.

5.Nf3 Qe7 6.Be2 c6 7.a4 (7.Be5 cb5 8.c3 Bd6=) 7...c5 (7...Nbd7 8.Nc3=) 8.c4 (8.0-0 a6=) 8...Nbd7 (8...0-0 9.0-0=) 9.0-0 Nb6 (9...0-0 10.Bc3=) 10.cd5 Nbd5 11.Nc3 0-0 12.Qc2 h6 (12...Rd8 13.Na2=) 13.Ne5 (13.Na2 b6+=) 13...a6 (13...Rd8 14.Rfc1+=) 14.f4 (14.Rfc1 Nd7 15.Ne4 ab5 16.ab5 Ra1 17.Ra1 Ne5 18.Be5 Rd8+=) 14...ab5 (14...Bc3 15.Bc3 (15.dc3? Ne3 16.Qb1 Nf1 17.Qf1 ab5–+) 15...Nc3 16.dc3+=) 15.ab5 Ra1 (15...Bd7 16.Nd5 ed5 17.Nd7 Nd7 18.Bf3+=) 16.Ra1 Nd7 (16...Rd8 17.Na2+=) 17.Nc4 (17.Nd5 ed5 18.Nd3 c4 19.Nb4 Qb4+–) 17...N5b6 (17...Bc3 18.Bc3 Nc3 19.dc3+=) 18.Na2 (18.Nb6 Nb6 19.Na2 Nd5+–) 18...Nd5 (18...Nc4 19.Bc4 (worse 19.Qc4 Bd2 20.Qd3 Ba5=+) 19...Ba5 20.Nc1+=) 19.Nb4 (19.g3 Rd8+–) 19...Nb4 20.Qb1 (20.Qc3 f6+–) 20...b6 (20...Rd8 21.Ra7+–) 21.Ra7 Qd8 (21...Qh4 22.d4+–) 22.Qe1+– Nf6 (22...Kh7 23.d4+–) 23.Qg3 (23.Bf6 gf6 24.d4 Nd5+–) 23...Kh8 (23...Nbd5 24.Bf3+–) 24.Be5 Bd7 (24...Kh7 25.d4 cd4 26.Bd4+–) 25.Bc7 Qc8?? (better 25...Qe8+–) 26.Nd6 (26.Nb6?! Qe8 27.Nc4 Ne4+–) 26…Nh5 1–0. GuestVMZB – GuestWLWK, freechess.org, 2018.

5.Bf6 Qf6–/+ 6.c3 Bd7 (6...Bd6 7.d4=+) 7.Qf3 Be7 8.Qf6 (8.d4 c6=+) 8...Bf6 9.Nf3 (9.d4 c6=+) 9...0-0 (9...a6 10.ba6 Na6 11.d4=+) 10.Be2 (10.d4 a6=+) 10...a6 (10...c5=+) 11.b6 (better is 11.ba6!? Na6 12.d4=+) 11...cb6–/+ 12.0-0 Nc6 13.d4 b5 14.Nbd2 Rac8 15.Nb3 (15.Rfb1 Rc7–/+) 15...Be7 (15...b6 16.Rfd1–+) 16.Rfc1 (16.Rfb1 Nb8–+) 16...Rc7 17.a3 Rfc8 18.Nfd2 Na7 19.a4?? b4 20.c4–/+ dc4 21.Nc4 b5 22.Nb6=+ Rc1 23.Nc1 Rc7 24.Nd7 Rd7 25.ab5 ab5 26.Nb3 h6 27.Rc1 Bd6=+ 28.g3 Rc7 29.Rc7= Bc7 30.f4 Kf8 31.Kf2 Ke7 32.e4 Bb6 33.Ke3 Kd6 34.h4 f6 35.g4 e5–/+ 36.fe5 fe5 37.Kd3 ed4 38.Nd4 Bd4 39.Kd4 Nc6 40.Ke3 Kc5 41.Kf4 b3 42.Bd3 b2 43.Kf5 Nd4 (44.Kg6 b4 45.Kg7 Nb5–+; 43...Kd4 44.Bb1–+) 0–1. Klett,Otto – Wartig,Wolfgang, corr DDR–ch distr, 1984.

6.Nf3 0-0 7.c4 a6 8.a4 (8.Qc2 dc4 9.Bc4 ab5 10.Bb5 Nbd7=) 8...ab5 (8...Bb4 9.Nc3+=) 9.cb5 (9.ab5 c5=) 9...Bd7 (9...Nbd7 10.Be2+=) 10.Nc3 (10.Be2 Ne4=) 10...Ne4 (10...c5 11.Be2+=) 11.Qc2= Nc3 (11...Ng5 12.Be2=) 12.Bc3 Bc3 13.Qc3 c6 14.d4 (14.Be2 Qa5 15.Qa5 Ra5=) 14...cb5 (14...Qe7 15.bc6 Nc6 16.Be2=) 15.Bb5 Bb5 16.ab5 Ra1 17.Qa1 Qc7 18.0-0 Qc4 (18...Rc8 19.Ne5=) 19.Qb2 Rc8 20.Nd2 (20.Ne5 Qc3 21.Qc3 Rc3=) 20...Qd3 (20...Qe2 21.Ra1=) 21.Rc1 (21.Qb4 Qe2=) 21...Rc1+= 22.Qc1 h6?? (better is 22...Nd7+=) 23.Qc8+– Kh7 24.Qb8?? (better is 24.Nf1 Qb5 25.Qb8+–) 24...Qd2= 25.g3 Qa5?? (better is 25...Qd1 26.Kg2 Qd3=) 26.Qb7+– f6 27.b6 e5 28.Qa7 Qb5 (28...Qe1 29.Kg2 Qb1 30.Qc7 Qe4 31.f3+–) 29.Kg2 (better is 29.Qc7 Qb1 30.Kg2 Qe4 31.f3 Qd3+–) 29...ed4 (29...Qd3 30.Qc7 Qe4 31.f3 Qd3+–) 30.ed4 (better is 30.b7 de3 31.b8Q Qb8 32.Qb8 ef2 33.Kf2+–) 30...Qb4?? (30...Qb1 31.Qc7 Qe4 32.Kf1 Qd3 33.Ke1 Qb1 34.Kd2 Qb4 35.Ke3 Qa3 36.Kf4 Qd3+/–) 31.b7 1–0. Fournier,Frederic – De Vallee,Arnaud, Partie Libre, 1996.

6.Nf3 0-0 7.Be2 Nbd7 8.0-0 c6 9.a4 cb5 (9...c5 10.d4=) 10.ab5 a6 11.Nc3 (11.Ne5 Qc7=) 11...ab5 (11...e5 12.Ra2=) 12.Nb5+= b6? (12...Ne4 13.d3 Ng5 14.Ba3+–) 13.d4 (better 13.Ba3+–) 13...Ne4 (13...Ba6 14.c4=) 14.c4 dc4 15.Bc4 Ba6 (15...Bb7 16.Ba3 Nc3 17.Nc3 Bc3 A) worse 18.Bf8 Ra1 (18...Ba1?! 19.Bd6=) 19.Qd3 Bf3–/+ (worse 19...Kf8 20.Qc3 Rf1 21.Bf1=); B) 18.Ra2=) 16.Qb3 (better 16.Qe2+=) 16...Qe7? (better 16...Ng5 17.Ng5 Qg5=) 17.Ba3+– Qf6 18.Bf8 Rf8 (18...Nf8 19.Bd3 Ng5 20.Ne5+–) 19.Na3 (better 19.Bd3 Bb7 20.Rfc1+–) 19...e5?? (better 19...Bb7+–) 20.Ba6 ed4 21.Nd4 (better 21.ed4 Rd8+–) 21...Nd2 (21...Ndc5 22.Qc2 Nd2 23.Bb5 Nf1 24.Bf1+–) 22.Qb5 Nf1 23.Qd7 Nd2 24.Bb7 (24.Bd3 Rd8 25.Qh3 h6+–) 24...Bc3 (24...Rd8 25.Qc6 Qc6 26.Bc6+–) 25.Rc1 Bd4 26.ed4 (26.Qd4 Qd4 27.ed4 Nb3+–) 26...Nb3 27.Rc8 (27.Rc6 Qd4 28.Qd4 Nd4 29.Rb6 Rb8+–) 27...Nd4 (27...Qd4 28.Rf8 Kf8 29.Qc8 Ke7 30.Qc2+–) 28.Re8 (28.Rf8 Kf8 29.Qc8 Ke7+–) 28...Ne2 (28...g6 29.Rf8 Kf8 30.Nc4+–) 29.Kf1 Qa1 (29...Ng3 30.hg3 Qa1 31.Ke2 Qb2 32.Kd1 Qa1 33.Kd2 Qa3 34.Bd5 Qb2 35.Kd3 Qb1 36.Kc4 Qa2 37.Kc3 Qa1 38.Kb4 Qb2 39.Bb3+–) 30.Ke2 Qa3 (30...Qb2 31.Kf1 Qc1 32.Re1 Qa3 33.Rb1+–) 31.Rf8 Qf8 32.Qc6 (better 32.Bd5!? g6+–) 32...Qe7 33.Kf1 (33.Kd3 Qa3 34.Qc3 Qd6 35.Qd4 Qa3 36.Kd2 Qa2 37.Kd1 Qb3 38.Ke1 Qe6 39.Kf1 g6+–) 33...Qc5 (33...Qd8 34.Ke1+–) 34.Qe8 Qf8 35.Bc6 (35.Qd7 Kh8+–) 35...h6 (35...Qe8 36.Be8 Kf8 37.Bb5+–) 36.Ke2 (36.Qd7 Qb4+–) 36...Qe8 37.Be8 Kf8 38.Ba4 Ke7 39.Kd3 g5 (39...Kd6 40.h4+–) 40.Kc4 Kd6 41.Kb5 Kc7 (41...h5 42.Kb6 h4 43.g3+–) 42.Bb3 (42.g4 Kd6+–) 42...f5 (42...f6 43.g4+–) 43.Be6 f4 44.g3 (44.Bd5 Kd6 45.Be4 Ke5+–) 44...fg3 45.fg3 h5 46.h3 (46.Bd5!? Kd6 47.Bf3 g4+–) 46...h4 47.g4 (47.gh4 gh4 48.Bd5 Kd6+–) 47...Kd6 48.Bf5 (48.Bc8 Kc7 49.Ba6 Kd6 50.Kb6 Ke5+–) 48...Kc7? (48...Ke5 49.Kb6 Kf4 50.Kc6+–) 49.Be4 (better 49.Kc4!? Kd6 50.Kd4+–) 49...Kd6 50.Kb6 (50.Bg2 Ke5 51.Bf1 Kf4 52.Kb6 Ke3+–) 50...Ke5+– 51.Bf5 Kf4 52.Kc5 Kg3 53.Kd4 (53.Kd6 Kh3 54.Ke5 Kg3+–) 53...Kh3 54.Ke5 (54.Bd7 Kg3 55.Ke5 h3+–) 54...Kg3 55.Kf6?? (better 55.Bc8 h3 56.Kf5+–) 55...h3 (55...Kf4 56.Be6 h3 57.Bf7–+) 56.Kg6 (56.Kg5 h2 57.Be4 Kf2+–) 56...Kf3?? (56...h2 57.Be4 Kg4–+) 57.Bd7 (57.Kg5 Ke3 58.Bc8 h2+–) 57...h2? (57...Kf4 58.Kh5 h2+–) 58.Kg5 Ke4 (58...Kf2 59.Bc6 Kg1+–) 59.Kh5 (better 59.Bc6 Ke3 60.Kf5+–) 59...Kd5 60.Bc8 Kc6 (60...h1Q 61.Kg6 Qh8 62.Bf5–+) 61.Bf5 (61.Kg6 h1Q 62.Bf5 Kd6–+) 61…h1Q (61...h1Q 62.Kg5 Kd5–+) 0–1. DEFFM – GuestGNTV, freechess.org, 2016.

6.Nf3 Nbd7 7.c4 dc4 (7...a6 8.ba6 ba6 9.Nc3=) 8.Bc4 Nb6 9.Be2 0-0 10.0-0 Qd7 (10...Bd7 11.Ne5=) 11.d4 (11.Bf6 gf6 12.Qc2 Rd8+–) 11...Nbd5 12.Ne5 Qe8 13.Qc2 Nd7 (13...Rb8 14.Rc1+–) 14.Nf3 (14.Nc4 Bb6+–) 14...N7b6 (14...N7f6 15.Bc1+=) 15.e4 (15.Nbd2 Bd2 16.Nd2 a6 17.ba6 ba6+–) 15...Nf6 (15...Nf4 16.Bc3 Bc3 17.Nc3+=) 16.Nc3 (16.Bd3!?+–) 16...Bd7+= 17.a4 Qe7 (17...Qd8 18.Bd3+–) 18.Ne5 (18.Ba3 Bb4 19.Bb4 Qb4+–) 18...Bc3 (18...Rfc8!?+=) 19.Bc3+– Be8 (better 19...a5+–) 20.Qb3 (better 20.a5 Nc8 21.Rfb1+–) 20...Ne4= 21.Bb4 Nd6 22.Bf3 Rb8 23.a5 Nd7 (23...Nbc8 24.Be2=) 24.Nc4+= Nc4?? (better 24...b6+=) 25.Be7+– (25.Qc4?! Qd8+–) 25...Nd2 26.Qd3 Nf1 1–0. GuestPRBF – guestoweii, freechess.org, 2017.

6.Nf3 0-0 7.Be2 Nbd7 (7...a6 8.ba6 b6 9.0-0=+) 8.d4 Bd6 9.0-0 (9.c4 dc4 10.Bc4 a6=) 9...Re8 (9...a6 10.Nc3=) 10.Nbd2 (10.c4 b6=) 10...c5 (10...a6 11.c4=) 11.c4 (11.bc6 bc6 12.c4 Rb8=) 11...cd4 12.ed4 (12.Nd4 Nb6=) 12...b6 13.Ne5 Bb7 (13...a6 14.Bd3=) 14.f4 (14.Bf3 a6=) 14...Qe7 (14...a6=) 15.Nc6 (15.Bf3 a6=) 15...Qf8 (15...Bc6!? 16.bc6 Nb8–/+) 16.Bd3 (16.Ne5 a6=) 16...a6=+ 17.a4 Rec8 18.Ne5 ab5 (18...dc4 19.Ndc4 ab5 20.ab5=) 19.ab5 (19.cb5 Qe7=) 19...Ra1 20.Qa1 (20.Ba1 Bb4=) 20...Bb4 (20...Ra8 21.Qd1=) 21.Bc3 Ra8 (21...dc4 22.Ndc4 Bd5 23.Bb4 Qb4 24.Rc1=) 22.Qb2 Bc3 23.Qc3 Ne5 (23...Qd6!?=) 24.fe5+= (worse 24.de5 Qc5 25.Kh1 Ng4–/+) 24...Ne4 (24...Qa3 25.Qc2 Ne4 26.c5 bc5 27.Be4 Qe3 28.Kh1 de4 29.dc5=) 25.Be4 de4 26.c5 bc5 (26...Bd5 27.Re1+=) 27.dc5+– Bd5 28.Rb1 Qe8 (28...Qe7 29.Qe3+–) 29.c6 (29.Nc4 Qd8+–) 29...Qc8 30.c7 e3 31.Nf3 (31.Qe3?! Qc7 32.b6 Qb7=) 31...e2 (31...Qb7 32.b6+– (32.Qe3?! Qc7 33.b6 Qb7=)) 32.b6+– Qa6 (32...Be4 33.Qd4 f5 34.Re1+–) 33.Kf2 (33.Qd2 Qb7+–) 33...h6 (33...Rc8 34.Qd2 Qb7 35.Qe2+–) 34.Qc2 Qb7 (34...e1B 35.Ne1 (35.Re1?! Qb6 36.Kg3 Rc8=) 35...Qb7 36.Qc5+–) 35.Qe2 Ra2?? (35...Rc8 36.Qe3+–) 36.Rb2 (better 36.Qa2! Ba2 37.Rc1 Qb6 38.Kg3+–) 36...Ra8 37.Kg3 (37.Qe3 Ra1+–) 37...Qc8 (37...Rc8 38.Nd4+–) 38.Qb5 Qb7 (38...Bb7 39.Rd2 Qf8 40.Qd7+–) 39.Qd7 Rf8 (39...Rc8+–) 40.Qd8 Be4 41.Rd2 Bd5 42.Rc2 Qc8 43.Qc8 Rc8 44.Rd2 Bb7 45.Rd8 Kh7 46.Nd4 h5 47.Nb5 g5 48.Nd6 Rc7 49.bc7 Ba6 50.Ra8 h4 51.Kf2 Bc8 (51...Kh6 52.Ra6 Kg7 53.c8Q g4 54.Ra8 Kh6 55.Qh8 Kg5 56.Qf6 Kh5 57.Rh8) 52.Nc8 Kh6 (52...f6 53.Ne7 g4 54.c8Q g3 55.Ke3 Kh6 56.Qh8 Kg5 57.Rg8) 53.Ne7 (53.Ne7 g4 54.c8Q g3 55.Kf3 gh2 56.Qh8 Kg5 57.Rg8; 53.Nd6 Kg7 54.c8Q Kg6 55.Qh8 f5 56.Rg8) 1–0. DEFFM – GuestNVCM, freechess.org, 2018.

6.Nf3 c6 7.c4 0-0 8.a4 cb5 9.cb5 b6 10.Be2 Bd6 11.0-0 Qc7 (11...a6 12.Na3=) 12.d4 e5?? (better 12...Ng4 13.h3 Nh2 14.Nh2 Bh2 15.Kh1 Bd6+=) 13.de5+- (13.Ne5?! Bf5+/-) 13...Be5 14.Be5 Qc6 (14...Qe7 15.Bf6 Qf6 16.Qd5 Qa1 17.Qa8 Bg4 18.Qa7 Qb2+-) 15.bc6 Nc6 16.Bf6 gf6 17.Nc3 Ne5 18.Nd5 Nf3 19.Bf3 Be6 20.Nf6 Kh8 21.Qd4 Rad8 22.Qe5 Bf5 23.Qf5 Rg8 (23...Kg7 24.Nh5 Kh8 25.Qf6 Kg8 26.Qg7) 24.Qh7 1-0. BeepBeepImAJeep (2575) - ali2009, lichess.org, 2017.

6.c4 c6 7.d4 cb5 8.c5 (8.cb5 0-0=+) 8...0-0 9.Bb5 Qa5 (9...b6 10.Nf3–/+) 10.Nc3= a6 (10...Bd7 11.Qa4 Qa4 12.Ba4=+) 11.Bd3 b5 12.Nge2 b4 (12...Nc6!?=) 13.ab4 Qb4 14.Rb1 Qa5 15.0-0 Qd8 16.Qb3 Nc6 17.Qb6 (17.Na4 Rb8 18.Qc3 Ne4 19.Be4 de4+=) 17...Bd7 18.Ba3 (18.Na4 Rb8 19.Qd8 Rfd8+=) 18...Rb8 (better is 18...Qc8=) 19.Qa6?? (19.Qd8 Rfd8 (19...Nd8?? 20.Rb8 Nc6 21.Rb7+–) 20.Nf4 a5=) 19...Rb1?? (better is 19...Ra8 20.Qb6 Ra3–+) 20.Rb1 Ne4? (20...e5!?+/–) 21.Be4 (better is 21.Ne4!? Qa8 22.Rb6 de4 23.Be4 Qa6 24.Ra6 Rc8+–) 21...de4 22.Ne4 f5 23.Nd6 Bd6 24.cd6 Qg5 25.f4 Qg4 26.h3 Qh4 27.Rb7 Qe1 28.Kh2 Bc8 29.Qc6 Bb7 30.Qb7 Qe2 31.d7 Qe3 32.Bf8 Qf4 33.Kh1 Qc1= 34.Kh2 Qf4 35.Kg1 Qe3 36.Kf1 Qd3 37.Kf2 Qd4? (38.Ke2 Qc4 39.Kd2 Qf4 40.Kd3 Qf1 41.Kd4 Qg1 42.Kc4 Qf1 43.Kc5 Qf2 44.Kc6 Qg2 45.Kc7 Qb7 46.Kb7 Kf8 47.d8Q Kf7 48.Qc7 Kf6+–; 37...Qd2 38.Kg3 Qe3 39.Qf3 Qg5 40.Kh2 Qd8+–) +–. cry – abc1, Live Game Caissa's Web, 2004.

6.Nf3 Nbd7 7.c4 (7.Be2 Bd6=) 7...0-0=+ 8.cd5 Nd5 9.Bd3 (9.Qc2 Re8=+) 9...Nc5= 10.Qc2 (10.Bc2 Qd7 11.Qe2 Rd8=) 10...Nd3=+ 11.Qd3 Qd7 (11...a6 12.e4 Nf4 13.Qd8 Rd8 14.Be5 Nd3 15.Ke2 Ne5 16.Ne5 ab5 17.Rc1–/+) 12.Ne5=+ Qd6 13.0-0 (13.e4 f6 14.ed5 fe5–/+) 13...Nb6 (13...a6 14.e4 Nf6 15.ba6 Qd3 16.Nd3 Ne4 17.Rc1=+) 14.Bd4 (14.Rc1 f6 15.Qd6 Bd6=+) 14...f6 (14...Rd8 15.Qe4=+) 15.Nc4= Nc4 16.Qc4 Bd7 (16...c5 17.bc6 Qc6 18.Qc6 bc6 19.Rc1=) 17.Rc1 b6 (17...Rfc8 18.Bc5 Qc5 19.Qc5 Bc5 20.Rc5–/+) 18.a4 (18.Rc2 Rfd8=) 18...Rad8 (18...Rac8 19.a5=) 19.Rc3 (19.d3 Rc8 20.a5 c6=+) 19...Rc8 20.Rd3 Qd5 (20...c6 21.Bf6 cb5 22.Rd6 Rc4 23.Na3 Bd6 24.Nc4 bc4 25.Bc3–+) 21.Qd5 (21.Qc2 Qh5 22.Nc3 Bd6=) 21...ed5 22.Bb2 Be6 23.Nc3 Rfd8=+ 24.Ba3 Ba3 25.Ra3 Kf7 26.Rd4 Rd6 27.Rb3 c5 28.bc6 Rcc6 29.a5 ba5 30.Rb7= Kg6 31.Ra7 Rc5 32.Ra4 Rb6 33.Kf1 Rb2 34.Ke1 Rc2 35.Ne2 Rc7 36.Nf4+– Kf5 37.R4a5 Rc1 38.Ke2 Ra7 39.Ra7 h5 40.Rg7 Rh1 41.Nh5 Rh2 42.g4 Ke5 43.d4 Kd6 44.Nf6 Kc6 45.Ra7 Kd6 46.Ne8 Kc6 47.Ra6 Kd7 48.Nf6 Ke7 49.g5 Rg2 50.Ra7 Kd6 51.Ne8 Kc6 52.Ra6 Kd7 53.Nf6 Ke7 54.Nh7 Bg4 55.Kf1 Bf3 56.Rf6 Be4 57.f3 Rg5 58.fe4 Rh5 59.Rc6 de4 60.Kg2 Kf7 61.Rc7 Kg6 62.Nf8 Kf6 63.Rc6 Kg5 64.Rc5 Kg4 65.Rh5 Kh5 66.Kg3 Kg5 67.d5 Kf5 68.d6 Kf6 69.d7 Ke7 70.Kf4 Kd8 71.Ke4 Ke7 72.Ke5 Kd8 73.Ke6 Kc7 74.e4 Kd8 75.e5 Kc7 76.Kf6 Kd8 77.e6 Kc7 78.e7 Kc6 79.d8Q Kb5 80.e8Q Kc5 81.Ne6 Kb4 82.Qd4 Kb3 83.Qea4# 1–0. Edchess – Waxman, computer chess game, 1995.

6.Qb3 a5 7.a3 Bc5 8.d4 Be7 9.a4 b6 10.Nf3 Nbd7 11.Be2 c5 (11...Bb7 12.0-0=) 12.dc5 (better is 12.bc6 Nb8 13.cd5 Nd5 14.Bb5+/–) 12...Nc5+= 13.Qc2 Nce4 14.0-0 Bb7 15.Nbd2 Bc5 16.Bd4 (16.cd5 Nd2 17.Nd2 Nd5= (worse is 17...Qd5 18.Bf3 Qd7 19.Bf6+/–)) 16...Bb4 (16...Bd4 17.Nd4 Nd2 18.Qd2 dc4 19.Bc4=) 17.Ne4 Ne4 18.Ng5?? (better is 18.Bd3=) 18...Ng5–+ 19.f4 Ne4 20.Rac1 Bc5 21.Bc5 Nc5 22.Bf3 Rc8 23.Qd2 (23.Rcd1 Qe7–+) 23...Ne4 (better is 23...Nb3 24.Qb2 Nc1 25.Rc1 Qe7–+) 24.Be4 de4 25.Qd8 (25.Rfd1–+) 25...Rfd8 (25...Rcd8?! 26.c5–+) 26.Rfe1 g6 27.g3 Rd3 28.Kf1 Rcd8 (28...Ra3 29.c5 bc5 30.Ra1–+) 29.Rb1 (29.c5 bc5 30.Rc5 Ra3–+) 29...Ra3 30.Ra1 Rc3 31.Rac1 Ra3 32.Ra1 Rdd3 (better is 32...Ra1!? 33.Ra1 Rc8 34.Rc1–+) 33.Ra3 Ra3 34.Rd1 Ra4 (34...Rd3!? 35.Ke2 Rd1 36.Kd1–+) 35.Rd8 Kg7 36.Rb8 Rc4 37.Rb7 Rc3 38.Kf2 (38.Rb6 Re3 39.Ra6 Ra3–+) 38...Rc2 39.Kg1 Rc1 40.Kf2 Rc2 41.Kg1 Rc1 ½–½. Valpa – Matthew, playchess.de, 2002.

6.Qb3 c5 7.a3 Ba5 8.Nf3 Re8 (8...Nbd7 9.Be2=+) 9.Be2 Nbd7 10.0-0 Nb6 11.d3 dc4 (11...h6 12.Rd1=) 12.dc4 Ne4 (12...Nbd7 13.Nbd2+=) 13.Rd1+- Qe7 14.Nc3 Nd6 15.Rd2 (15.Na4 Na4 16.Qa4 Bc7+=) 15...a6 (15...Rd8 16.a4=) 16.Rad1 Bc3?? (better 16...Rd8 17.a4 f6=) 17.Qc3+- (17.Bc3 Ne4 18.Rc2 ab5 19.Qb5 Ra6=) 17...f6 (17...Nf5 18.Qa5 Nd7+-) 18.Rd6 Na4 19.Qc2 ab5 (19...Nb2 20.Qb2 e5 21.ba6 Ra6 22.Ra6 ba6 23.Qb6+-) 20.cb5 Nb2 21.Qb2 e5 22.Bc4 Kh8 23.Qb3 (23.h3 e4 24.Nh2 Qf8+-) 23...Bg4 (23...e4 24.Ne1+-) 24.e4 (better 24.h3 Bf3 25.gf3 f5+-) 24...Rf8 (24...Red8 25.R6d5+-) 25.h3 Bf3 (25...Bc8 26.Qe3+-) 26.Qf3 f5 (26...Rfd8 27.Qd3 Rd6 28.Qd6 Qd6 29.Rd6 g6+-) 27.Rd7 Qg5 28.ef5 Rae8 (28...Qf5 29.Qf5 Rf5 30.Rb7+-) 29.Qg4 Rf5 (29...Qg4 30.hg4 b6+-) 30.Qg5 Rg5 31.Rd8 g6 32.Re8 Kg7 33.Rd7 Kh6 34.Rh8 Rh5 35.Rdh7 Kg5 36.Rh5 gh5 37.Bd3 b6 38.Rf8 h4 39.g4 hg3 (39...c4 40.Bc2 c3 41.Kg2 e4 42.Be4 c2 43.f4 Kh6 44.Rf7 c1Q 45.Rh7) 40.fg3 c4 (40...e4 41.Be4 Kh5 42.Rf7 c4 43.Bf5 c3 44.h4 c2 45.Rh7) 41.Bc4 (41.Bf5 c3 42.h4 Kh6 43.Rf7 c2 44.Rh7) 41...e4 (41...Kh6 42.Rf6 Kh7 43.Rb6 e4 44.Kf2 Kg7 45.Re6 Kf8 46.b6 Kf7 47.b7 Kg7 48.b8Q e3 49.Ke3 Kf7 50.Rd6 Kg7 51.Qg8) 42.Kf2 e3 (42...Kh6 43.Rf6 Kg7 44.Rb6 Kf8 45.Re6 Kf7 46.b6 Kf8 47.b7 e3 48.Ke3 Kg7 49.b8Q Kh7 50.Rd6 Kg7 51.Qg8) 43.Ke3 Kg6 44.Kf4 Kg7 45.Rf7 Kg6 (45...Kg8 46.Kg5 Kh8 47.Kg6 Kg8 48.Bd5 Kh8 49.Rh7) 46.h4 Kh5 (46...Kh6 47.Bd3 Kh5 48.Rh7) 47.Bd3 Kh6 48.Rh7 1-0. jaddwarrior (1975) - LAVAREDA (1790), ChessWorld.net, 2015.

6.cd5 ed5 7.Nf3 Bg4 (7...a6 8.Qa4 Bd6 9.Be2+=) 8.Be2= Nbd7 (8...a6 9.Qa4 Qe7 10.0-0=) 9.0-0 Qe7 (9...Bd6 10.h3 Bh5 11.Nc3=) 10.Qc2 (10.Nc3 Rfe8=) 10...Bd6 11.Rc1 Bf3 (11...Rfe8 12.Bd4=) 12.Bf3 Ne5 (12...a6 13.Nc3 Qe5 14.g3=) 13.Be2 Neg4 (13...Rfe8 14.Qf5=) 14.h3 Ne5 15.d4 Ng6 (15...Ned7 16.Nc3+=) 16.a4 (16.Nc3 Rfe8+=) 16...Rfc8 (16...Rac8 17.Nc3=) 17.Bd3 (17.Nc3 c5+=) 17...c5= 18.Bf5 Rc7 19.dc5 Rc5 20.Qd1 Rc1 21.Qc1 (21.Bc1? Nh4 22.Bc2 Qe5–+) 21...Nh4 22.Bd3 Ne4 23.Qc2 (23.Qd1 Re8 24.Qh5 g6=) 23...f5 (23...Re8 24.Qe2 f5=) 24.Nc3 (better is 24.Qb3!? Qe6 25.a5=) 24...Qg5–/+ 25.Be4 (25.g4 Nf3 (25...fg4?! 26.Ne4 de4 27.Be4=) 26.Kf1 Qh4 (worse is 26...fg4 27.Ne4 de4 28.Be4+=) 27.Be4 fe4+=) 25...fe4 26.g4 Qe5 27.f4 (27.Kf1 Rf8 28.f4 ef3 29.Qf2–+) 27...ef3 28.Qf2 (28.Kf1–+) 28...Ng2 29.Nd5 (29.Kf1 Ne3 30.Kg1–+) 29...Qh2 (29...Qh2 30.Kf1 Qh3–+) 0–1. Vettenburg,Louis – Sohy, corr ICCF, 1989.

6.cd5 Qd5? 7.Bf6 e5 8.a3 +–.

7.a4 a5 A) 8.Qc2 dc4 (8...cb5 9.cb5 Bd6 10.Bd3 Nbd7 11.0-0 e5 12.Be2 Qb6 13.Rc1=) 9.Bc4 cb5 10.Bb5 Bd7 11.0-0 Bc6 12.Bc6 Nc6 13.Ng5=; B) 8.Nc3 Re8 (8...Nbd7 9.cd5 cd5 10.Be2 Bd6 11.0-0 e5 12.Rc1 Nb6 13.d4=) 9.Rc1 e5 10.bc6 Nc6 11.cd5 Nd5 12.Nd5 Qd5 13.Bc4=.

7.a4 a6 A) 8.cd5 ed5 (8...Nd5 9.Nc3 b6 10.Nd5 Qd5 11.Qc2 ab5 12.ab5 Ra1 13.Ba1=) 9.Be2 Re8 10.0-0 c5 11.Qc2 ab5 12.ab5 Ra1 13.Ba1=; B) 8.Nc3 Re8 (8...c5 9.Bd3 dc4 10.Bc4 Nbd7 11.0-0 ab5 12.ab5 Ra1 13.Qa1=) 9.Qb3 c5 10.Rd1 ab5 11.Nb5 Ne4 12.Be2 Nc6 13.0-0=.

7.a4 cb5 8.ab5 (8.cb5 Bd6 (8...Nbd7 9.Be2 Bd6 10.0-0 e5 11.Ba3 Ba3 12.Na3 e4 13.Nd4=) 9.Ba3 Ba3 10.Ra3 Re8 11.d4 a6 12.ba6 Na6 13.Bb5=) 8...Nbd7 (8...a5 9.Nc3 b6 10.cd5 Nd5 11.Bc4 Bb7 12.0-0 Nc3 13.dc3=) 9.Qb3 (9.cd5 Nd5 10.Be2 Re8 11.Nc3 N7b6 12.Qb3 a5 13.ba6=) 9...Qe7 (9...Ba5 10.Nc3 dc4 11.Bc4 b6 12.0-0 Bb7 13.Nd4=) 10.Be2 (10.Ba3 Ba3 11.Qa3 Qe8 12.d4 dc4 13.Bc4=) 10...Rd8 (10...dc4 11.Bc4 Nb6 12.Be2 Bd6 13.d4=) 11.0-0 (11.Ba3 Bd6 12.d4 dc4 13.Bd6=) 11...dc4 12.Bc4 Nb6 (12...a5 13.Ba3=) 13.Bf6 gf6 14.Rc1 Bd7 15.Be2 Rdc8 (15...e5 16.d4=) 16.Rc8+= Bc8 17.Nc3 Kh8 18.Rb1 Bc5 19.Ne4 Rb8 20.d4 Bd6 21.Nd6 Qd6 22.e4 Bd7 23.Qe3 White intends e5 23...Rg8 24.Ra1 Nc8 25.e5 Qb4 26.Qh6 Rg6 27.Qc1 Qe7 (27...Qb3+–) 28.ef6 Qd6 29.Ne5 Rf6 (29...Qd4 30.Ng6 fg6 31.Qa3 Qf6 32.Rd1+–) 30.Qg5 Rf2 (30...Rf5 31.Qf5!! ef5 32.Nf7 Kg8 33.Nd6 Nd6+–) 31.Kf2 Qd4 32.Kf3 (32.Kf3 Qd5 33.Kg3+–) 1–0. poesimannen (1925) – bodejax (1720), gameknot.com, 2013.

7.a4 dc4 8.Bc4= a6 9.Qb3 c5 (9...Bd6 10.0-0=) 10.0-0 ab5 (10...b6 11.d4=) 11.ab5 Ra1 12.Ba1 b6 13.Nc3 (13.Bc3 Bc3 14.dc3 Bb7=) 13...Bb7 14.Ng5 1–0. GuestXRRC – GuestNBZT, freechess.org, 2018.

7.a4 c5 A) 8.Bc3 Bc3 (8...Ba5 9.Bd3 Nbd7 10.0-0 Bc7 11.Qc2 Qe7 12.cd5 ed5 13.Bf5=) 9.Nc3 d4 10.ed4 cd4 11.Ne2 e5 12.Ne5 d3 13.Nc3–/+; B) 8.Be2 a6 (8...dc4 9.0-0 Nbd7 10.Na3 Nb6 11.Nc4 Ne4 12.Nb6 ab6 13.d4+=) 9.0-0 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 b6 13.d4=.

7.a4 Nbd7 A) 8.Nc3 Qe7 (8...Qa5 9.Be2 dc4 10.Bc4 Nb6 11.Be2 Bd7 12.0-0 Rac8 13.Qc2=) 9.Be2 dc4 10.bc6 bc6 11.Bc4 e5 12.Qc2 e4 13.Ng5=; B) 8.cd5 cd5 (8...Nd5 9.bc6 bc6 10.Qc2 c5 11.Nc3 N5f6 12.Be2 Rb8 13.Rb1=) 9.Be2 Bd6 10.0-0 e5 11.Ba3 Ba3 12.Na3 e4 13.Nd4=.

6.a3 Ba5 7.c4 a6 8.Ne5 =+.

6.a3 Ba5 7.c4 c6 8.a4 (8.Nc3 dc4 9.Bc4 Bd7=) 8...Nbd7=+ 9.Be2 Rb8 (9...dc4 10.bc6 bc6 11.Bc4=+) 10.0-0= a6 11.d3 (11.cd5 ed5 12.Qc2 c5=) 11...Nc5 (11...Qc7 12.d4=) 12.Nbd2 e5 (better is 12...Ra8!?+=) 13.Be5+– Bc7 14.Bb2 Re8 15.Nb3 Ne6 16.Rc1 h5 17.h3 Qd6?? 18.c5 Qe7 19.b6 (19...Bd8 20.Be5+–) 1–0. Jakubaszek,A – Chalas,Z, corr Poland, 1990.

6.a3 Bd6 7.Bd3 =+.

6.a4 Ba5 7.Be2= c6 (7...c5 8.0-0=) 8.0-0 c5 (8...Nbd7 9.c4=) 9.c4 Nbd7 10.Qc2 (10.d4 Qe7=) 10...h6 (10...Re8 11.d4 cd4 12.Nd4 dc4 13.Rd1=) 11.d4+= cd4 12.ed4 (12.Bd4 Qc7+=) 12...Nb6 (12...dc4!? 13.Nbd2 c3 14.Bc3 Bc3 15.Qc3 Nd5=) 13.c5+= Nbd7 14.Nbd2 b6 (14...Re8!?+=) 15.c6+– Nb8? (better 15...Qc7+–) 16.c7+– (16.c7 Qd6 17.Ba3+–) 1–0. GuestBZSR – GuestJQV, freechess.org, 2020.

6.c4 dc4 7.Bc4 h6 8.0-0 c6 9.a4 (9.Qa4 Bd6=) 9...cb5 (9...a6 10.d3=) 10.ab5+= Ne4 (10...Bd6 11.Qe2+=) 11.Qb3 Bd2?? (better 11...Be7+=) 12.Nbd2+– Nd2 13.Nd2 Qd2 (13...Nd7 14.Rfd1+–) 14.Rfd1 Qd1 (14...Qd7 15.Qc3 Qd1 16.Rd1+–) 15.Rd1 Nd7 16.Be6! fe6 17.Qe6 Kh7 (17...Rf7 18.e4 a6+–) 18.Rd7 Bd7 19.Qd7 Rad8 20.Qg7 1–0. DEFFM – GuestRFMJ, freechess.org, 2018.

6.c4 Nbd7 7.cd5 Nd5 8.Nc3 Nc3 9.dc3 Be7 (9...Bd6 10.Qc2=) 10.Bd3 Bf6 (10...Nc5 11.Be2=) 11.0-0 (11.Qc2 g6+=) 11...b6 (better is 11...Nc5!? 12.Bc2 a6=) 12.Be4+/– Rb8 13.Bc6 (13.Qc2 h6+/–) 13...Ne5 14.Nd4 Nc6 15.Nc6 Qd1 16.Rad1 Ra8 17.Rd2 Bb7 18.Rfd1 Bc6 (18...a6 19.c4 ab5 20.cb5 Bc6 21.bc6 Ra2 22.Bf6 Rd2 23.Rd2 gf6 24.Rd7=) 19.bc6+= a5 20.Rd7 Rac8 21.Ba3 (21.f4 g5+=) 21...Rfd8 (21...Rfe8 22.c4+=) 22.c4 Rd7 (22...Re8+/–) 23.Rd7 (better is 23.cd7!? Rd8 24.c5+/–) 23...h6 24.e4 Be5 25.f3 g5= 26.Kf2 Bh2? 27.g3+– h5 28.Kg2 Bg3 29.Kg3 Kg7 30.Bc1 Kg6 31.f4 f6 32.fg5 fg5 33.Bb2 a4 34.a3 h4 35.Kg4 Rf8 36.Be5 Rg8 37.Rc7 h3 38.Re7 h2 39.Bh2 Kf6 40.Rb7 Rh8 41.e5 Kg6 42.Bg3 Rd8 43.Re7 Rd4 44.Kf3 Rc4 45.Re6 Kf7 46.Rd6 Rc3 47.Kg4 Ra3 48.Kg5 Rg3= 49.Kf4 Rc3 50.Rd7 Ke8 51.Ra7 b5 52.c7 Kd7 53.Rb7 Rc4 54.Kf5= b4?? 55.e6+– Kc8 56.e7 Kb7 57.e8Q b3 58.Qb5 Kc7 59.Qc4 Kd6 60.Qa4 b2 61.Qb3 b1Q 62.Qb1 Kc5 63.Ke5 Kc4 64.Qc2 Kb5 65.Kd5 Kb6 66.Qc4 Kb7 67.Kd6 Kb8 68.Qf7 Kc8 69.Qc7 1–0. Bini,Gabriele – Schapmann,Thomas, Canarias en Red prel 1st blitz, 2004.

6.c4 Nbd7 7.Be2 Nb6 8.cd5 ed5 9.0-0 Bf5 10.Nd4 Qd7 11.Nf5 Qf5 12.Qb3 Bd6 13.f4 Rad8 (13...Nbd7 14.Bd3 Ne4 15.Nc3=) 14.Bd4 Rfe8 (14...Nbd7 15.Rc1=) 15.Nc3 (15.Bd3 Ne4+=) 15...Nfd7 16.a4 Bc5 17.a5 Bd4 18.ed4 Nc8 19.g4 Qe6 (19...Qf6 20.Ra4 Qh4 21.Kg2= (21.Qd5? Ndb6 22.Qb3 Na4 23.Qa4 Nd6–+)) 20.Bf3 d5 seems the pivot of the position 20...c6 (20...Qf6 21.Qb4 (worse 21.Bd5 Qd4 22.Rf2 Nd6–/+) 21...Ne7 22.Rae1+=) 21.a6 ba6 22.bc6 Qc6 23.Nd5 Qd6 24.Rfe1 Nf6 25.Re8 Re8 26.Qb4 Qd8 27.Ne3 Re6 (27...Ne4!?+=) 28.g5+– Ne8 29.Qc5 Rb6 30.Re1 (30.Rc1 Ncd6+–) 30...Ned6 (30...Rb5 31.Qc6 Ne7 32.Qa6+–) 31.Nd5+– Rb2 (31...Rb3 32.d3+–) 32.Bg4 (32.Qa3!? Rb8+–) 32...Rb7+– 33.Bf3 Rb3 (33...Rb2 34.Qa3 Rc2 35.Bg4+–) 34.Bg4 Rb7 35.Bc8 (35.Be2 Qd7+–) 35...Nc8 36.Re5 (36.Nb4 Ne7+=) 36...Nd6+= 37.Kg2 a5 38.Ne3 a4 (38...Rb5 39.Qc6 Rb6 40.Qc2+=) 39.Qc6 a3? (better 39...Qd7 40.Qd7 Rd7+–) 40.Nc4+– Rb6?? (better 40...a2 41.Nd6 Re7+–) 41.Nb6 ab6 42.Rd5 a2 (42...Qe7 43.Rd6 h6 44.Qa8 Kh7 45.Qa3+–) 43.Qd6 Qe8 (43...Qd6 44.Rd6 f6 45.Rd8 Kf7 46.Ra8 fg5 47.fg5+–) 44.Qd8 Kf8 45.Qe8 Ke8 46.Re5 Kd7 47.Re1 Kd6 (47...f6 48.Ra1 fg5 49.fg5+–) 48.Ra1 Kd5 (48...h6 49.Ra2 Kc6 50.Ra7+–) 49.Ra2 Kd4 (49...Ke4 50.Ra7 b5 51.Rf7+–) 50.Ra7 Ke4 (50...h6 51.Rf7 hg5 52.fg5+–) 51.Rf7 g6 52.f5 gf5 53.Rh7 Ke5 (53...Kd4 54.g6 Kd5 55.g7 Kd4 56.g8Q Kc5 57.Rd7 f4 58.Qa2 f3 59.Kf3 Kb4 60.Rd4 Kb5 61.Qd5 Ka6 62.Ra4) 54.Rb7 Kd6 (54...Kd4 55.g6 Kc5 56.g7 Kc6 57.Rb8 Kc7 58.g8Q Kd6 59.Rb6 Kc5 60.Qe6 Kd4 61.Qd6 Ke4 62.Rb4) 55.g6 Kc6 (55...Kc5 56.g7 Kd6 57.g8Q Kc5 58.Qe6 b5 59.Qf5 Kc6 60.Qd7 Kc5 61.Rb5 Kc4 62.Qd5) 56.Rb8 Kc7 (56...Kc5 57.g7 Kd5 58.g8Q Kc5 59.Qc8 Kd6 60.Rb6 Ke5 61.Qe6 Kf4 62.h3 Kg5 63.Qh6) 57.Rf8 Kd6 (57...f4 58.g7 Kd7 59.g8Q Kd6 60.Rf6 Kc5 61.Qc8 Kb5 62.Rf4 Ka5 63.Qd7 b5 64.Qa7) 58.g7 (58.g7 b5 59.g8Q Kc5 60.Rf5 Kb4 61.Qd5 Ka4 62.Qb5 Ka3 63.Rf4 Ka2 64.Ra4) 1–0. DEFFM – GuestBXKL, freechess.org, 2019.

6.Be2 b6 7.0-0 Bb7 8.d4 a6 9.a4 c6 (9...Qe7 10.Qd3=) 10.Ne5 (10.Ba3 Bd6=) 10...ab5 (10...Bd6 11.c4=) 11.ab5 Ra1 12.Ba1 Ne4 (12...cb5 13.Nc3=) 13.bc6 (13.f3 Nf6=) 13...Nc6+= 14.Nc6 Bc6 15.c3 (15.f3 Nf6+=) 15...Bd6 16.Nd2 Nd2 17.Qd2 Qb8 (17...Qc7 18.f4+=) 18.f4 b5 (18...Qc7 19.Rb1+=) 19.Bd3 b4 (19...Qc7!?=) 20.cb4+= Qb4 (20...Bb5 21.Bc3+=) 21.Qc2 (21.Bh7 Kh7 22.Qc2 Kg8 23.Qc6 Qb8+=) 21...Bb5 (21...Ba4 22.Qb1=) 22.Bc3 ½–½. Rosner,Dirk – Eckhardt,HJ, corr DDR–ch I724, 1988.

6.Be2 c5 7.0-0 Nbd7=.

6.Be2 c5 7.c4 dc4 8.Bc4 Nbd7 9.a3 Ba5 10.0-0 Nb6 11.Be2 Bd7 12.Qc2 Rc8 Black plans c4 13.Ne5 Be8 (13...Nfd5 14.f4=) 14.f4 (14.Rc1 Nfd5=) 14...c4 (14...Nfd5 15.e4 Ne7 16.Rf2=) 15.a4+= Nfd5 16.Nc4 (16.Bc4? f6 (worse 16...Nc4 17.Nc4 Nb6 18.Nba3+–) 17.Qe4 fe5 18.Qe5 Qd7–+) 16...Nc4 17.Bc4 Qc7 (17...Nb6 18.d3+=) 18.Na3 1–0. DEFFM – GuestCQHfHccqq, freechess.org, 2018.

6.Be2 c5 7.c4 Nbd7 8.0-0 dc4 9.Bc4 Nb6 (9...b6 10.a3 Ba5 11.d3=) 10.Be2+= Bd7 11.Qc2 Rc8 12.a3 (12.a4 c4+=) 12...Ba5 13.Ng5 g6 14.Ne4 Ne4 15.Qe4 Nd5 16.Nc3 Bc3 (16...f5 17.Qc4 Nb6 18.Qf4=) 17.dc3+= Qf6 18.Rac1 Qf5 19.Qh4 (19.Qf5 ef5 (19...gf5? 20.c4 Nb6 21.Bf6+–) 20.c4 Nb6+/–) 19...Qf6 (19...g5 20.Qg3 c4+/–) 20.Qg3 (20.Qf6 Nf6 21.c4+–) 20...Rfd8= 21.Ba1 (21.f4 Nb6=) 21...c4+= 22.a4 a5 (22...a6 23.Rb1+=) 23.Bf3 b6 (better is 23...Nb6!?=) 24.Rfd1+/– Be8 25.Rd4 Qe7 26.Bb2 Nc3?? (better is 26...Nf6+/–) 27.Bc3 (27.Rd8 Rd8 28.Qe5 f6 29.Qc3 e5 30.Qc4 Qf7+–) 27...Qa3 28.Rcd1 (better is 28.Rc2 Qb3 29.Bd1 f6+–) 28...Rd4?? (28...Qc3 29.Rd8 Rd8+=) 29.Bd4+– Qa4 (29...Qe7+–) 30.Qe5 1–0. Alessandro,Sergio (1665) – Van Der Maas,Johan (1605), 5th Science Park Amsterdam Open – Group, 2015.

6.Be2 Bd6 7.0-0 =.

6.Be2 Bd7 7.0-0 a6 8.a4 c5 9.bc6 (9.c3 Ba5=) 9...Nc6 10.d4 (10.Ne5 Ne5 11.Be5 Bc6=) 10...b6 (10...Qa5 11.Ba3=) 11.c4 Ne4 (11...Qc7 12.cd5 Nd5 13.Bd3=) 12.Nfd2 (12.cd5 ed5 13.Qb3 Nf6=) 12...Nd2 13.Nd2 Qc7 (13...Bd2 14.Qd2 Na5 15.Qb4=) 14.Rc1 (14.Ba3 Ba3 15.Ra3 dc4 16.Nc4 b5 17.ab5 ab5 18.Ra8 Ra8=) 14...Rfc8 15.Bf3 (15.Bd3 Qd6=) 15...Qd6 16.Bc3 Bc3 17.Rc3 Rab8 18.Qc2 Nb4 (18...Ne7 19.Qb3=) 19.Qb3 a5 (19...Qe7 20.Rb1 a5 21.cd5 Rc3 22.Qc3 Ba4 23.Ra1=) 20.Rfc1= Bc6 21.Qa3 Qd7= 22.c5 Ba4 23.cb6+/– Rc3 24.Rc3 Na6 25.Rc1 g5 26.Rb1 Bc2+= 27.Rc1 Ba4+/– 28.Ra1 Bb5 29.Qa5 Qc6 30.Rb1 Bd3= 31.Rd1 (31.Re1 Qb6 32.Qa3 Nb4=) ½–½. Garcia Camejo,Gonzalo – Viota Coll,Osvaldo, corr Giraldilla Cup, 1999.

6.Be2 Bd7 7.0-0 Qe8 8.c4 (8.Bf6 gf6 9.a3 Bd6=) 8...dc4 9.Bf6 gf6 10.a4 Be7 (10...a6!? 11.ba6 Ra6=) 11.Bc4+= Kh8 12.Nc3 Rg8 13.Qb3 f5 14.Ne2 Bf6 15.d4 a6 (15...c5 16.Rac1 cd4 17.Ned4+=) 16.Nf4 Rg4 17.Nh5 Be7 18.Ne5 (18.ba6 b6 19.d5 f6 20.de6 Qh5 21.ed7 Rg2 22.Kh1 Rg7+-) 18...f6 (18...Rg5 19.Nf4+-) 19.Ng4 Qh5 20.Nf6 Bf6 21.Be6 f4 (21...Qe8!? 22.Bd7 Nd7+-) 22.ba6+- Ra6 (22...b6 23.Bd7 Nd7 24.Qe6+-) 23.Bd7 (23.Qb7?! Re6 24.Qb8 Qe8 25.Qc7 f3+-) 23...Nd7 24.Qb7 Rb6 (24...Rd6 25.Qc7 Be7+-) 25.Qc8 Kg7 26.Qd7 Kh6 (26...Qf7 27.Qg4 Kh8 28.a5+-) 27.Qc7 Rb2 28.Qf4 Bg5 (28...Kg7 29.Rfc1 Qg6 30.Rc7 Kg8 31.Qg3+-) 29.Qf8 Kg6 30.Qe8 (better 30.Rac1!? Bf6 31.Rc6 Qg5 32.Qg8 Kh6+-) 30...Kh6 31.Qf8 (better 31.Qh5 Kh5 32.Rfb1 Re2+-) 31...Kg6 32.f4 Bh6 33.Qe8 (33.Qe8 Kg7 34.Qh5+-) 1-0. DEFFM – MarceloCate, freechess.org, 2020.

6.Be2 Ne4 7.0-0 a6 8.d3 Ng5 9.a4 ab5 10.ab5 Ra1 11.Ba1 b6 (11...Nf3 12.Bf3 Qg5 13.c4 dc4 14.dc4=) 12.c4 dc4 13.dc4 Qd1 (13...Bd6 14.Nbd2+=) 14.Rd1+- Nf3 15.Bf3 Nd7 16.Bc6 Ne5?? (better 16...Rd8+-) 17.Be5+- f6 (17...Bd6 18.Bd6 Rd8 19.Nc3 Rd6 20.Rd6 cd6 21.Na4+-) 18.Bc7 Bc5 19.Nc3 f5 (19...Rf7 20.Rd8 Rf8 21.Na4 Rd8 22.Bd8+-) 20.Na4 Rf7 (20...Kf7 21.Nb6 Kg6 22.Na4+-) 21.Rd8 Rf8 22.Nb6 (22.Be8 Bb7 23.Nc5 bc5+-) 22...Rd8 23.Bd8 Bb6 24.Bb6 e5 (24...g5 25.Bd4+-) 25.Bc7 e4 (25...Kf7 26.Be5 Ke6 27.Bg7+-) 26.b6 (26.b6 Kh8 27.c5+-) 1-0. DEFFM – Banassi, freechess.org, 2020.

6.Be2 Ne4 7.0-0 Bd7 (7...a6 8.a4=) 8.Bd3 (8.d3 Nf6 9.c4 c6=) 8...h6 (8...a6 9.a4=) 9.Ne5 (9.c4 c6=) 9...Be8 (9...a6 10.Be4 de4 11.ba6 Ra6 12.d3=) 10.c4 (10.Qg4 Qg5+= (10...Bd2? 11.Nd2 Nd2 12.Nc4 Nf3 13.gf3+–)) 10...f6= 11.Nf3 Nc5 (11...Bh5 12.Be2=) 12.Be2+= Qd6? (better 12...Bg6+=) 13.d4+– Ne4 14.c5 Qe7 (14...Bc5 15.dc5 Nc5 16.Qc2+–) 15.Qa4 a5 (15...Bc5 16.dc5 c6 17.b6+–) 16.a3 Bc5 17.dc5 Nc5 (17...Nd7 18.Rc1+–) 18.Qg4 (18.Qc2 Nbd7+–) 18...h5 (18...c6 19.Nc3+–) 19.Qg3 Ne4 20.Qh3 g5 21.Nfd2 g4 22.Qh4 Nd6 23.Bg4?? (better 23.f3 Nf5 24.Qf2+–) 23...hg4+= 24.Qg4 Kh7 25.Qh4 (25.a4 Bg6+=) 25...Kg7 26.a4 (26.Qg3 Bg6+=) 26...Rh8 27.Qg3 Kh6 (27...Bg6 28.Rc1+=) 28.Nf3 (28.Rc1 c6+–) 28...Nf5 (28...Bh5 29.Nbd2+=) 29.Qf4+– Kg7 30.Rc1 (30.Nbd2 Nd6+–) 30...c5 (30...c6 31.Nbd2+–) 31.g4 Nh4?? (31...Nd6 32.g5 Nd7 33.Rc5 Rc8 34.Rc8 Nc8 35.gf6 Nf6 36.Qg5 Kf7 37.Ne5 Kf8 38.Ng6 Bg6+–) 32.Nh4+– Rh4 (32...Nd7 33.g5 Rg8 34.Kh1+–) 33.Qg5 Bg6 34.Qh4 e5 (34...Nd7 35.g5 e5 36.gf6 Qf6 37.Qg4+–) 35.Nc3 Qd6 36.f4! Nd7 (36...ef4 37.Nd5 Decoy) 37.Rd1 Rh8 (37...d4 38.f5 Rh8 39.Qg3+–) 38.Rd5 Qe6 (38...Qd5 39.Qh8 (39.Nd5?! Rh4 40.g5 fg5=) 39...Kh8 40.Nd5+–) 39.Qg3 Nb6 (39...Bc2 40.fe5 Ne5 41.g5+–) 40.f5 Nd5 (40...Qe8 41.Rc5 Bf7 42.g5+–) 41.fe6 Nc3 42.Bc3 b6 43.g5 Re8 44.gf6 Kh6 45.Qh4 Bh5 46.f7 Rf8 (46...Ra8 47.e7 Kg6 48.e8Q Rd8 49.f8N Kg7 50.Ne6 Kh7 51.Qhh5) 47.Rf1 (47.Rf1 Rd8 48.Rf6 Kg7 49.Qg5 Kf8 50.Qh6 Ke7 51.f8Q Rf8 52.Qf8; 47.Be5 Rd8 48.Bf6 Rd1 49.Rd1 Kg6 50.f8N Kf5 51.e4) 1–0. DEFFM – GuestPPLH, freechess.org, 2018.

7.a3 Bd6=+ 8.0-0 (8.ba6 b6=+) 8...ab5 9.Bb5 Bd7 (9...Nbd7 10.Nc3=+) 10.Nc3 (10.Be2 Nc6=+) 10...Ne4 (10...e5 11.Be2=+) 11.Bd3 (11.a4 f6=+) 11...Nc3 12.Bc3 Nc6 (< 12...Ba3 13.Bb4 Bb4 14.Ra8+/–) 13.Qb1 (13.a4 e5 14.Bb5 e4=+) 13...e5 (< 13...Ra3 14.Ra3 Ba3 15.Qa1+=) 14.Qb2 (14.Qb7? e4 15.Be2 Rb8–+) 14...e4 15.Bg7 ef3 16.g3? Re8–+ 17.Bf6 Qc8 18.Rfb1 b6 19.Qb3 Ne5 20.Bf1 Bh3 21.Bb5 c6 22.Be5 Re5 23.Bd3 Bg2 (24.Qb6 Rh5 25.Bh7 Rh7 26.Qd8 Qd8 27.Rb8 Rb8 28.h4 Rh4 29.gh4 Qh4 30.d4 Qh2#) 0–1. Machete (2280) – SuperBot (2540), ICC, 2003.

7.a3 Bd6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0-0 Nbd7 12.d4 Re8 (12...Qc7 13.Nbd2=) 13.Nbd2= Nf8 (13...c5!?=) 14.c4+= c5 (14...cb5 15.c5 Be7 16.Ne5+=) 15.dc5 Bc5 16.Nb3 (16.Qc2 b6+=) 16...Be7 17.c5 (17.Qc2 Ng6+=) 17...N8d7 (17...Ng6!?+=) 18.c6+- bc6 19.bc6 Nb8 (19...Nc5 20.Be5 Qb6 21.Nc5 Qc5 22.Qa4+-) 20.Qc2 Qd6 (20...Na6 21.Rc1+-) 21.Rc1+- Qb4 (21...Qc7 22.Be5 Bd6 23.Bf6 gf6 24.Nbd4+-) 22.Bc3 Qb6 (22...Qe4 23.Bd3 Qg4 24.Qa2 Nc6 25.h3+-) 23.Bd4 (23.Ba5!? Qa7 24.Nfd4 Na6+-) 23...Qc7 24.Be5 Qb6 (24...Bd6 25.Bd6 Qd6 26.c7+-) 25.Nbd2 Ng4 26.Bd3 (26.Bd4 Qc7 27.h3 Nf6+-) 26...Ne5 27.Bh7 Kf8 28.Ne5 Qc7 29.Ndf3 Bd6 30.Nf7! Qf7 (30...Qf7 31.Bg6 Decoy; 30...Kf7 31.Bg6 Double attack) 31.Bg6 Qf6 32.Be8 Ke8 33.Nd4 Qe5 (33...Na6 34.Nb5 Bc5 35.Nc7 Nc7 36.Qc5+-) 34.Qh7 Kf7 35.Rc3 Bc7 36.f4 Qf6 37.g3 Ba6 38.Rc1 Qh6 (38...Bc4 39.Qh5 Ke7 40.Qh8+-) 39.Qh6 (39.Qc2!? Qf6 40.Rb1+-) 39...gh6 40.Kg2 Ke7 41.g4 Kf7 (better 41...Bd3!?+-) 42.h4+- White intends g5 42...Bd3 43.g5 hg5 44.hg5 e5 (44...Na6 45.Kg3+-) 45.fe5+- Na6 46.e6 Ke7 47.Kf2 (better 47.Rc3 Be4 48.Kh3+-) 47...Bg6?? (better 47...Bb8+-) 48.Ra1 Bd3 (48...Nc5 49.Ra7 Kd6 50.Kg3+-) 49.Ke1 Bb6 (49...Bc4 50.Kd2 Be5 51.g6+-) 50.Kd2 Nc5 51.c7! Bc7 52.Ra7 Kd6 53.e7! Bg6 (53...Ke7 54.Rc7 Deflection) 54.Nb5 Ke7 (54...Kc6 55.Rc7 Kb5+-) 55.Rc7 Nd7 56.Kc3 Bf7 (56...Ke6 57.Nd4 Ke7 58.Nc6 Ke6 59.Rd7+-) 57.Kd4 Be6 58.Ra7 Kf7 59.Nc7 Bh3 (59...Bg4 60.Ra6 Nf8+-) 60.Nd5 Bf1 (60...Kg8+-) 61.Rd7 Kg6 62.e4 Kg5 63.Rg7 Kh6 64.Rg1 Bb5 (64...Be2 65.e5 Bh5 66.e6 Bf3 67.Nf6 Bg2 68.e7 Bc6 69.Kc4 Bb5 70.Kc5 Ba4 71.Rg2 Be8 72.Ne8 Kh5 73.Ng7 Kh6 74.Nf5 Kh7 75.Rg7 Kh8 76.e8Q) 65.e5 Bc6 (65...Kh5 66.Kc5 Ba4 67.Nf6 Kh6 68.e6 Bc2 69.Kd4 Ba4 70.e7 Bc6 71.Kc4 Bb5 72.Kc5 Ba4 73.Rg2 Be8 74.Ne8 Kh5 75.Ng7 Kh4 76.e8Q Kh3 77.Qc6 Kh4 78.Qh6) 66.e6 Bd5 (66...Kh5 67.Kc5 Be8 68.Nf6 Kh4 69.Ne8 Kh3 70.Nf6 Kh2 71.Rg4 Kh3 72.e7 Kh2 73.e8Q Kh3 74.Qh5) 67.Kd5 Kh7 (67...Kh5 68.e7 Kh4 69.e8Q Kh3 70.Qh5) 68.e7 Kh6 (68...Kh8 69.e8Q Kh7 70.Qh5) 69.e8Q Kh7 70.Qh5 1-0. DEFFM (2400) - TheSelim (2470), lichess.org, 2020.

7.a4 ab5 8.ab5 Ra1 9.Ba1 c6 10.0-0 (10.Be5 Nbd7=) 10...Bd7 (10...Nbd7 11.Bb2=) 11.bc6 (11.Be5 cb5 12.c3 Be7=) 11...Bc6 (11...Nc6 12.Ne5=) 12.Nc3 Nbd7 13.Bb2 (13.Nd4 Qe7=) 13...Qe7 (13...e5 14.Qa1 Qc7 15.Rb1=) 14.Qa1 (14.Nb5 Rc8=) 14...Rc8 15.Nd4 e5 16.Nc6 bc6 17.Qa6 (17.f4 Bd6 18.fe5 Be5+=) 17...Qe8 18.Ra1 Nc5 19.Qa2 Rb8 20.d3 d4 21.Nd1 Nd5 22.Qc4 Nb7 23.Bf3 Nd6 24.Qa2 de3 25.fe3 (25.Bd5 e2 26.Nc3 cd5 27.Qd5 Bc3 28.Bc3 Nb5+=) 25...e4 26.de4 Ne4 27.c4 (better is 27.Bd4=) 27...Nf4 28.Qa7?? (28.ef4) 28...Bc5= 29.Qc7 Ne6 30.Qe5 Nd6 31.Qc3 Nf5 Exerts pressure on the isolated pawn 32.Kh1 Ne3 0–1. Schwertel,Gottfried – Krasny,Henryk Jan, corr SOK–98–131, 1999.

7.a4 Bd6 8.0-0=.

7.ba6 Na6 8.0-0= Be7 (8...b6 9.Nc3=) 9.c4 (9.Nc3 Nc5=) 9...c6 (9...Nb4 10.a3 Nc6 11.Qc2=) 10.cd5 (10.d4 dc4 11.Bc4 Nb4=) 10...ed5 11.a3 (11.Be5 Bf5=) 11...Bg4 12.Nc3 (12.Qc2 Re8=+) 12...Nc5 (12...Re8 13.Qc2=+) 13.d4 (13.Qc2 Re8=+) 13...Nce4 14.Ne5 (14.Ne4 Ne4 15.Ne5 Be2 16.Qe2 Bd6=+) 14...Be2 (14...Nc3 15.Bc3 Be2 16.Qe2 Ba3 17.Rfb1–/+) 15.Qe2 (15.Ne2 Re8=+) 15...Bd6 (15...Nc3 16.Bc3 Ba3 17.Rfb1–/+) 16.f3 (16.Ne4 Ne4 17.f3 Nf6=+) 16...Nc3–/+ 17.Bc3 Ra3 18.Ra3 (18.Qb2 Qe7–/+) 18...Ba3 19.Ra1 Bd6 (19...Qe7 20.Qc2–/+) 20.Qb2 Qc7 21.Ra7 Rb8 22.Be1 (22.Ba5 Qc8–/+) 22...Nd7 (22...c5 23.Bg3–/+) 23.Nd7 Qd7 (23...Bh2 24.Kh1 Qd7 25.Kh2 Qd6 26.Kg1+–) 24.Bb4 (24.e4 de4 25.fe4 Qe6–/+) 24...Bf8 (24...Bc7 25.Qb3–/+) 25.Kf2 (25.Bf8 Kf8 (25...Rf8?! 26.Rb7 Qe6 27.Qc3+=) 26.e4 Qe7–/+) 25...Qc7 (25...Be7 26.Be7 Qe7 27.Qc3–/+) 26.Bf8 Kf8 (worse 26...Rf8 27.Qb7 Qh2 28.Qc6 Qh4 29.Ke2+=) 27.Qb4 Kg8 (27...Qe7 28.Qe7 Ke7 29.e4–/+) 28.g3 h6 (28...Qd7 29.e4–/+) 29.Kg2 Qd7 30.Qb3 (30.Qb6 f5=+) 30...Qe7 31.Kf2 Qd7 (31...Qc7 32.Kg2=+) 32.Kg2=+ Qe7 33.Kf2 Qd7 (33...Kh8!?=+) 34.Kg2= ½–½. Janek – Befato, internet, 2017.

7.ba6 b6 8.0-0 Ba6 9.Ba6 Ra6 (9...Na6 10.Ne5=+) 10.Qe2= Qe7 11.c4 c6 12.Rc1 Ra7 (12...Ra8 13.cd5 ed5 14.d3=) 13.d3 Bd6 (13...Rd8 14.Ne5=) 14.a4 Rc8 15.Nbd2 Nbd7 (15...Ra8 16.Nb3=) 16.Nb3+= Nc5 (16...c5 17.e4 Bf4 18.Rcb1 de4 19.de4=) 17.Nc5 bc5 18.e4 (18.Ne5 Be5 19.Be5 Rca8=) 18...Bf4 (18...Bc7 19.Bf6 Qf6 20.e5=) 19.Re1 (19.e5 Nd7 20.Rc3 d4=) 19...Rb8 (19...Bc7!?=) 20.ed5+/– cd5 21.Bf6 Qf6 22.cd5 Rb2 23.Qd1 Re7 (23...Qf5!? 24.de6 fe6+/–) 24.de6 Re6 25.Re6 (25...Qe6 26.a5+–) 1–0. pierre (2090) – Robert Edward (1875), internet, 2006.

7.a4 a6 8.Nc3 Bc3 (8...Bd6 9.bc6 Nc6 10.0-0+=) 9.Bc3 Bd7 10.Qb1 ab5 11.ab5 Ra1 12.Qa1 cb5 13.0-0 Na6 14.Rb1 Attacking the isolated pawn on b5 14...Nc7 15.Bd3 Re8 16.Be5 Ng4 17.Bg7 f6 18.h3 Kg7 19.hg4 e5 20.Nh4 Kh8 (20...Bg4!? 21.Bb5 Nb5 22.Rb5 Qd7=) 21.Nf5 Rg8 22.Nh6 Rg7 23.f3 Qf8 24.Qa7 Bc6 25.Kf2 Rd7 Black intends d4 26.Nf5 Rd8 27.Qb6 Rc8 28.Be2 d4 (better is 28...Qa3!?+=) 29.ed4+/– Nd5 30.Qc5 Qc5 31.dc5 Bd7 32.Bb5 Bf5 33.gf5 Rc5 34.Bd3 Nf4 35.Be4 (worse is 35.Rb7 Rd5+/–) 35...b5 36.c3 Kg7 37.g3 Nd5 (37...Nh3 38.Ke3 Ng5+–) 38.d4 Rc3 39.Bd5 ed4 40.Rb5 Rc2 41.Ke1 Rg2 (41...h5 42.Rb7 Kh8 43.Rf7+–) 42.Rb7 Kh6 43.Rf7 (43.g4 d3+–) 43...Rg1 (43...Rg3 44.Be4+–) 44.Kf2 Rb1 45.f4 Rb6 46.Be6 Rb2 47.Kf3 Rb8 48.Rf6 Kg7 49.Rf7 Kh8 50.f6 d3 51.Bf5 d2 52.Ke2 d1Q 53.Kd1 Rd8 54.Kc2 h5 55.Rh7 (better is 55.Bg6!? Kg8 56.Rg7 Kf8+–) 55...Kg8 56.Bg6 Rc8 57.Kd2 Rd8 58.Ke3 Re8 59.Kf2 Rd8 60.f7 Kf8 61.Rh8 Ke7 62.Rd8 Kd8 63.f8Q Kd7 64.Qc5 h4 65.gh4 Kd8 66.Qa7 Kc8 67.Bf5 Kd8 68.Qd7 1–0. Resp – LaDameBlanche 2.0c, WBEC3_3rdDivision, 2002.

8.0-0 c5 9.d4 Nbd7 10.dc5 Bc5 11.c4 Qc7 12.cd5 Nd5 +=.

8.0-0 Nbd7 9.d4 Bd6 10.c4 dc4 11.bc6 bc6 12.Nbd2 Ba6 +=.

8.0-0 Ne4 9.c4 dc4 10.Bc4 Nd6 11.Be2 a6 12.Nc3 ab5 =.

8.0-0 Ne4 9.c4 Bd6 10.d3 Nc5 (10...Ng5 11.Nbd2 Nd7 12.d4 Nf3+=) 11.d4 Ne4 12.c5 Bc7 13.Nc3 Nd7 14.Qc2 f5 15.h3 Qf6 16.a5 Nf8 17.a6 Ng6 18.Qa4 e5 (18...Rb8!? 19.ab7 Rb7+=) 19.Nd5!+/– cd5 20.b6 Re7 21.bc7 Rc7 22.Rfc1 (22.Ne5!? Be6 23.Qa5 Re7+–) 22...Qe6 23.Ne5 Ne5 24.de5 Nc5 25.Qh4 Bd7 26.Rc5 (26.ab7 Rb7 27.Rc5 Rb2+–) 26...Rc5+= 27.ab7 Rb8 28.Ra7 (Opening the a–file gets White a lot of play) 28...Rc7 29.Ba6 Qb6? (29...Bc6!?+=) 30.e6! Qa7?? (30...Qe6 31.Ra8) 31.Qg3 Rcb7 (31...Rc1 32.Kh2 g6+–) 32.Qg7# 1–0. pierre – camat, internet, 2008.

8.0-0 Ne4 9.d3 Ng5 10.c4 Nf3 11.Bf3 Qh4 12.Qc2 Nd7 =.

8.0-0 Ne4 9.Ne5 f6 10.Nd3 Ba5 11.Bh5 Re7 12.Ba3 Rc7 =.

8.Ne5 Nfd7 9.Nd3 Bd6 10.f4 Qh4 11.g3 Qe7 12.0-0 a6 13.Nc3 =.

9.0-0 a6 10.f4 Nbd7 11.c4 ab5 12.ab5 Ra1 13.Ba1 =.

9.0-0 Bd6 10.f4 Nbd7 11.Nd7 Nd7 12.Nc3 e5 13.Ba3 =.

9.0-0 Nbd7 10.f4 Bd6 11.d4 c5 12.Nd2 a6 13.c4 =.

9.Nd3 Bd6 10.Bf6 gf6 11.Nc3 c5 12.Bh5 c4 13.Nb2 =.

9.Nd3 Bd6 10.Bf6 gf6 11.bc6 Nc6 12.Nc3 a6 13.Bf1 =.

9.Nd3 Bd6 10.Bf6 gf6 11.bc6 bc6 12.c4 e5 13.Nc3 =.

9.Nd3 Be7 10.Be5 Bd6 11.Bf6 gf6 12.bc6 Nc6 13.Nc3 =.

9.f4 a6 10.0-0 b6 11.Nc3 Bd6 12.bc6 Nc6 13.Nc6 =.

9.f4 b6 10.0-0 a6 11.Nd3 Bd6 12.Bf6 gf6 13.Nc3 =.

9.f4 Bd6 10.0-0 a6 11.Bd3 c5 12.c4 b6 13.Na3 =.

9.f4 Nbd7 10.0-0 a6 11.c4 ab5 12.ab5 Ra1 13.Ba1 =.

9.f4 Ne4 10.0-0 f6 11.Nd3 Bd6 12.Nc3 Nc3 13.Bc3 =.

6.a3 Ba5 7.Nc3 (7.ba6 b6=) 7...0-0 (7...ab5 8.Bb5 Nbd7 9.0-0=) 8.Bd3 (8.ba6 Na6 9.Be2 Re8+=) 8...ab5+= 9.Nb5 c6 10.Nbd4 (10.Nc3 Qd6+=) 10...Bc7 11.Be2 (11.Nb3 Nbd7+=) 11...e5 12.Nb3 Nbd7 13.0-0 (13.a4 e4 14.Nfd4 Nb6–/+) 13...b5 14.d3 (14.Ra2 Qe7–/+) 14...Qe7 15.Qe1 (15.Qd2 Re8–/+) 15...Re8 16.Rb1 (16.e4 Ra4–/+) 16...Bd6 17.Na5 Ra6 18.c4 Bc7 (18...Ba3?! 19.cb5 cb5 20.Ba3 Qa3 21.Rb5+=) 19.Nb3 e4 20.cb5 ef3 21.ba6 Bh2 22.Kh1 fe2 23.Qe2 Bb8 24.Rfc1 (24.a7 Ba7 25.Rfc1 Qd6–+) 24...Ne4! 25.Kg1 (25.de4 Qh4 Mate attack) 25...Qh4 26.g3 Bg3! 27.fg3 (27.fg3 Qg3 Double attack) 27...Qg3 28.Qg2 Qe3 0–1. Rosner,Dirk – Woelfelschneider,Peter, email SOK9/E006B, 1999.

6.a3 Bd6 7.Be5 =+.

6.a4 0-0 7.c4 (7.Be2 Nbd7=) 7...Qe7 (7...Nbd7 8.ba6 ba6 9.cd5 ed5 10.Be2=+) 8.Be2 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.Nc3 (12.0-0 e5=+) 12...Nb6 13.Be2 e5 14.0-0 e4 (14...Bd6 15.Qc2=+) 15.Nd4= Bd6 16.f3 Qe5 17.f4 (17.g3 Re8=) 17...Qe7=+ 18.Qc2 g6 (18...Rd8 19.Bb2=+) 19.Bb2= g5? (better 19...Rd8=) 20.Ne4?? (better 20.fg5 Qe5 21.g3 (21.Rf6?! Qh2 22.Kf1 Qh1 23.Kf2 Qh4 24.Kg1 Qh2 25.Kf1 Qh1 26.Kf2 Qh4 27.Kg1 Qh2=) 21...Qg5 22.Ne4 Ne4 23.Qe4+–) 20...Ne4–/+ (worse 20...Qe4 21.Bd3 Qd5 22.Nf5 Bf5 23.Bf5+–) 21.fg5 Qe5 (21...Re8!?–/+) 22.Nf3 0–1. DEFFM – GuestLSLX, freechess.org, 2016.

6.a4 ab5 7.ab5 Ra1 8.Ba1 0-0 9.Be2 Bd7 10.0-0 Qe8 (10...c5 11.bc6 Nc6 12.Ne5=) 11.c4 dc4 12.Qa4 (12.Bf6 gf6 13.Qa4 Qe7+=) 12...Be7 13.Nc3 Na6? (better 13...Bd6!?=) 14.Qc4+/- (14.Bc4?! Nc5 15.Qc2 c6+=) 14...Nb4 15.Qc7 Qa8 16.Bb2 Rc8 17.Qg3 Kf8 18.Ne4! Ne4 (18...Qa4 19.Nf6 gf6 20.Qh4 Bb5 21.Bb5 Qb5 22.Bf6 Bf6 23.Qf6+-) 19.Qg7 Ke8 20.Qg8?? (better 20.Qh8 Bf8 21.Bg7+- (21.Qh7?! Qa2+=)) 20...Bf8 21.Ne5 (21.Qh7 Rc2 22.Bd4 Nd6+=) 21...Nf6 (21...Nd6 22.Nf7! Nf7+-) 22.Qf7 (22.Qf7 Kd8 23.Qf8 Ne8 24.Nf7 Kc7 25.Be5 Kb6 26.Bd4 Kc7 27.b6 Kb8 28.Be5 Rc7 29.Bc7 Kc8 30.Nd6) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.a4 Nbd7 =.

6.c4 ab5 7.Qb3 c5 8.cd5= ed5 9.a3 Ba5 10.Bb5 Nc6 11.0-0 Be6 12.Ba4 Bb6 (12...Bd7!?=) 13.Bf6+= gf6 14.d4 c4 15.Qc2 Qc7 16.Nc3 Ba5 (better is 16...0-0!?+=) 17.Nd5+– Bd5 18.e4 Be6 19.d5 c3 20.Bc6 (20.Nd4 Rd8+–) 20...bc6+/– 21.de6 fe6 22.Nd4 e5 23.Nb3 c5 24.Na5 Qa5 25.Rfc1 0-0 26.Qb3 Kh8 27.Rc3 Rfb8 28.Qc2 Qa4 29.Qd3 Qc6 30.Rac1 Ra5 31.h3 Rab5 32.Kh2 Ra5 33.Qd5 Qd5 34.ed5 Rd8 35.Rc5 Rc5? (better is 35...Rd5 36.Rd5 Rd5+/–) 36.Rc5+– Kg7 37.a4 Ra8 38.a5 Kf7 39.Kg3 Ke7 40.Kg4 Kd6 41.Rb5 Rg8 42.Kf3 Rc8 43.a6 Rc3 44.Kg4 Rc4 (44...Ra3 45.Rb6 Kd5 46.Rf6+–) 45.Kh5 Ra4 46.Rb6 Kd5 47.Rf6 e4 48.g4 Ra1 49.Kh6 Ke5 50.g5 Rh1 51.Kh7 Rh3 52.Kg7 (52...Ra3 53.g6+–; 52.Kg8!? Rc3+–) 1–0. michaelbuss (2680) – ancientmage (2480), ChessWorld.net, 2003.

6.c4 ab5 7.Qb3 Bd6 8.Qb5 c6 9.Qb3 =+.

6.Ne5 0-0 +=.

6.Be2 c4 7.0-0 Bd7 8.a4 a6 9.c3 Bd6 10.Na3 (10.Ba3 Qe7 11.ba6 Ba3 12.Na3 Na6=+) 10...Qc7 11.h3 Ba3 12.Ba3 ab5 13.ab5 Bb5 14.Bb4 (14.Qc2 Ba4 15.Qb2 Ra7=+) 14...Ra1 15.Qa1 Na6 16.Qa3 Nb4 (16...Ne4 17.Nd4 Bd7 18.d3 cd3 19.Bd3 Nb4 20.cb4=+) 17.Qb4 (17.Qa8 Qd8 18.Qb7 Nc6 19.Qb5 Qd7=) 17...Bc6 (17...Ba6!?=+) 18.Ra1= Nd7 19.Ra8 Nb8 20.Nd4 Kd7 21.Qa3 Rc8 22.f4 Na6 (better is 22...Ke8=+) 23.Ra7?? (better is 23.Rc8 Qc8 24.d3=) 23...Qb6–+ 24.Nc6 Kc6 25.Ra6 ba6 26.Bd1 Kb7 27.Ba4 Rc5 28.Be8 f6 29.Qa4 a5 30.Bf7 e5 31.fe5–/+ fe5 32.Qd7 0–1. Hirt,Robert – Wartig,Wolfgang, corr GER–ch distr, 1997.

6.a3 Bd6=+ 7.d4 (7.Be2 e5=+) 7...c5 (7...a6 8.c4=+) 8.c4= 0-0 (8...cd4 9.Bd4 dc4 10.Bc4=) 9.Bd3 (9.cd5 ed5 10.dc5 Nc5=) 9...cd4=+ 10.ed4 (10.Nd4 Nc5 11.cd5 Nd5=+) 10...dc4 11.Bc4 Nb6 (11...a6 12.Nc3=+) 12.Bd3 Qc7 (12...Nbd5 13.0-0=+) 13.Nbd2 Qe7 (13...a6 14.ba6 ba6 15.Ne5=+) 14.0-0= Rd8 (14...a6 15.a4=) 15.Re1 (15.Ne4 Ne4 16.Be4 Nd5=) 15...Bd7 (15...a6 16.ba6 ba6 17.Ne5=+) 16.Ne5 Rac8 17.Qf3 Na4 18.Bc1 Nc3 19.a4 (19.Qb7 Bb5 20.Qf3 Be5 21.Re5 Bd3 22.Qd3 Ng4–+) 19...b6 (19...Be8 20.Bb2 Bb4 21.Rec1=) 20.Ndc4+= Bb4 21.Bd2 (21.Ba3 A) 21...Na4? 22.Bb4 (22.Nd7?! Nd7 23.Reb1 Ba3 24.Ra3 Ndc5 25.dc5 Nc5+–) 22...Qb4 23.Reb1+–; B) 21...Be8 22.Bb4 Qb4=) 21...Nfd5= 22.Qh3 (22.Ne3 Be8+=) 22...h6 23.Nd7 (23.Qg3 Qf6+=) 23...Rd7 24.Ne5 (24.Qg3 Qf6=) 24...Rdc7 25.Qg4 Na4 (25...Qf6 26.f4=) 26.Bb4 (worse 26.Ra4 Bd2 27.Rf1 Qd6–/+) 26...Qb4 27.Nf7 Rf7 28.Qe6 Ne7 29.Bh7 Kh7 30.Qf7 Rc7 31.Qf4 (31.Re4 Qd6 32.Rae1 Nd5 33.Qf5 g6=) 31...Rd7 Exerts pressure on the isolated pawn 32.Qe4 Ng6 33.Qc2 Rd4 34.Re6 Rg4 35.Rg6 Rg6 36.Qa4 Qa4 37.Ra4 Rg5 38.Ra7 (38.Rb4 Rc5 39.f4 Kg6=) 38...Rb5 39.f4 Rb4 (39...Kg6 40.Kf2=) 40.f5 Rf4 41.Rb7 Rf5 42.Rb6 ½–½. DEFFM – GuestDTWP, freechess.org, 2018.

6.Be2 0-0 A) 7.Nc3 e5 (7...Re8 8.0-0 e5 9.a4 c5 10.bc6 bc6 11.Rb1 Rb8 12.Ba1+=) 8.0-0 Re8 9.a3 Bd6 10.a4 c5 11.bc6 bc6 12.Ba3+=; B) 7.0-0 Qe7 (7...Bd6 8.d4 a6 9.Ba3 Ba3 10.Na3 Qe7 11.Qc1 e5 12.c4=) 8.Ne5 Ne5 9.Be5 Bd6 10.f4 Ne4 11.Bd6 Nd6 12.Nc3=.

6.Be2 c6 7.c4 (7.0-0 cb5 (7...0-0 8.d4 cb5 9.Bb5 Qa5 10.Bd3 b6 11.a3 Bd6 12.Qe2=) 8.Bb5 0-0 9.d4 a6 10.Bd3 Qc7 11.Nbd2 Nb6 12.Rb1=; 7.bc6 bc6 8.0-0 Rb8 9.Bc3 Bd6 10.Nd4 Qc7 11.f4 0-0 12.a3+=) 7...a6 (7...dc4 8.bc6 bc6 9.Bc4 Rb8 10.0-0 0-0 11.d3 Bd6 12.Qc2=; 7...0-0 8.cd5 cd5 9.0-0 Re8 10.d4 Ne4 11.Qd3 a6 12.Rc1=) 8.a4 (8.bc6 bc6 9.Qa4 Rb8 10.cd5 cd5 11.Be5 Rb6 12.Bd4+/–) 8...0-0 (8...ab5 9.cd5 ed5 10.ab5 Ra1 11.Ba1 0-0 12.0-0=) 9.0-0 (9.cd5 ed5 10.Nc3 ab5 11.ab5 Ra1 12.Qa1=) 9...dc4 (9...ab5 10.cb5 c5 11.Na3 Qe7 12.Nc2=) 10.bc6 bc6 11.Bc4 (11.Na3 c5 12.Nc4=) 11...Nb6 (11...c5 12.d4=) 12.Be2 Bb7 13.d4 c5 14.Ba3 Ba3 15.Na3 cd4 16.ed4 Rc8 17.Qb3 Nfd5 18.Rac1 (18.a5 Nf4 19.Ba6 Ba6 20.Qb6 Bf1 21.Kf1–/+) 18...Nf4–/+ (18...Nf4 19.Qe3 Qf6–/+) 0–1. algernon (2555) – alaudati (2605), net–chess.com, 2014.

6.Be2 Bd6 7.0-0 0-0 (7...e5 8.d4 e4 9.Nfd2 a6 10.ba6 ba6 11.c4 Rb8 12.Ba3=) 8.d4 a6 9.Ba3 Ba3 10.Na3 ab5 11.Nb5 c6 12.Nd6 +=.

6.Be2 Bd6 7.Nc3 0-0 (7...e5 8.0-0 0-0 9.a4 c5 10.bc6 bc6 11.Ba3 c5 12.Nb5+=) 8.0-0 e5 9.a4 c5 10.bc6 bc6 11.Ba3 c5 12.Nb5 +=.

6.Be2 Bd6 7.d4 =.

6.Be2 Ne4 7.0-0 f6 8.c4 0-0 9.cd5 ed5 10.Qb3 Bd6?? (better is 10...Qe7 11.d3 Ng5+–) 11.Qd5+– Kh8 12.Qe4 1–0. b4_player – branne, casual, 2013.

6.Be2 Qe7 7.0-0 0-0 8.a3 Bd6 9.Nc3 e5 10.a4 c5 11.a5 e4 12.Ne1 +=.

6.Be2 Qe7 7.0-0 (7.a3 Bd6=) 7...e5 8.c3 Bd6 9.d4 h6 (9...e4 10.Nfd2=) 10.a4 (10.c4 dc4 11.Nfd2 Nb6=) 10...e4 11.Nfd2 0-0 (11...c5 12.c4=) 12.c4 c5 13.dc5 (13.cd5 Nd5 14.Nc4 Rd8+=) 13...Nc5 (13...Be5 14.Nc3 Nc5 15.cd5=) 14.cd5 Rd8 15.Nc4 Bc7 16.d6 Bd6 17.Nd6 Rd6 (17...Qd6 18.Qd6 Rd6 19.Bf6 gf6 20.Nc3=) 18.Bd4 (18.Qc2 b6+=) 18...Nfd7 (18...Ne6 19.Bf6 Qf6 20.Qd6 Qa1 21.Qe7 Qa4 22.Qe8 Nf8 23.Rc1+/–) 19.Nc3 (19.Qc2 b6+=) 19...Ne6= 20.Rc1 Nd4 21.ed4 Nf6 22.Qd2 Be6 (22...Bf5 23.Rfd1=) 23.Qe3 Rad8 ½–½. Nemec,Zdenek (1885) – Lonsdale,David Robert (1750), CO7–01 b2–b4.com, 2005.

6.Be2 Qe7 7.0-0 e5 8.c4 dc4 9.Bc4 e4 10.Ng5 0-0 11.f3 ef3 12.Nf3 =.

6.Be2 Qe7 7.Ne5 Ne4 (7...Ne5 8.Be5 Ne4 9.c3 Qg5 10.cb4 Qe5 11.d4 Qd6 12.a3=) 8.Nd7 Bd7 9.0-0 0-0 10.a4 a6 11.ba6 ba6 12.d3 +=.

6.Be2 Be7 A) 7.0-0 0-0 (7...Bd6 8.d4 0-0 9.Ba3 Ba3 10.Na3 Qe7 11.Nb1 e5 12.c4=) 8.d4 a6 9.Ba3 ab5 10.Be7 Qe7 11.Bb5 c6 12.Be2+=; B) 7.a4 Bd6 (7...0-0 8.0-0 Bd6 9.d4 Ne4 10.Ba3 a6 11.Bd6 cd6 12.ba6=) 8.0-0 e5 9.d4 e4 10.Nfd2 a6 11.ba6 ba6 12.c4=.

5.a4 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 c6 9.Nf3 cb5 10.cb5 0-0 11.Be2 Bd7 12.0-0 Qa5 Attacking the isolated pawn on b5 13.Nc3 Bb4 14.Qb3 Bd6 15.Bb2 Rc8 16.Ra1 Qb6 17.h3 Be8 18.d4 Nc6?? (better 18...Nbd7+=) 19.Na4+- Na5 (19...Qc7 20.bc6 Qc6+-) 20.Nb6 Nb3 21.Nc8 Na1 22.Nd6 (22.Nd6 Nb3 23.Nb7+-) 1-0. BeepBeepImAJeep (2520) - Glouragan (2270), lichess.org, 2017.

5.c3 c6 6.d4 Bd6 7.a4 cb5 (7...a6 8.c4=+) 8.ab5= 0-0 9.Nf3 Ne4 10.Be2 (10.Ba3 Ba3 11.Ra3 Nd6=) 10...Qf6 (10...a6 11.c4=) 11.Nbd2 Qh6 (11...Nd2 12.Qd2 Rd8 13.Ba3=) 12.h3 (12.c4 Nd2 13.Qd2 dc4+=) 12...a6 (12...Ng3!? 13.Rg1 Ne2 14.Qe2 a6=) 13.Ne4 de4 14.Nd2 Qf6?? (better 14...Qg6 15.Qc2 Qg2 16.Qe4 Qg5+=) 15.Ne4+- Qe7 16.Nd6 Qd6 17.0-0 (17.Ba3 Qc7 18.Bf8 Kf8+-) 17...Bd7? (better 17...Rd8+-) 18.Ba3 Qc7 19.Bf8 Kf8 1-0. AleksandrNekhoroshik – prestsauce, lichess.org, 2020.

5.c4 a6 6.a4 0-0 7.Nf3 Re8 8.Be2 Nbd7 9.0-0 Bd6 10.d4 c6 (10...dc4 11.Nbd2=) 11.Nc3 Qc7 12.c5 Be7 13.ba6 b6 14.cb6 Qb6 15.Qc2 Ba6 16.Rab1 Qc7 17.Ba6 Ra6 18.Ba3 (18.Rfc1+=) 18...Bd8 (better is 18...Ba3 19.Nb5 Qa5 20.Na3 Qa4–/+) 19.Rb3= Nb6 20.Rfb1 Qc8 21.Bc5 Nbd7 (21...Na4? 22.Rb8 Qc7 23.Na4+–) 22.Ne5 (22.Bb4 Bb6+=) 22...Ne5 (22...Nc5 23.dc5 Bc7 24.Nd3=) 23.de5 (23.Rb8!? Nf3 24.gf3+=) 23...Nd7= 24.Bd6 Bc7 25.Rb7?? (25.Bc7 Qc7 26.Rb7 Qd8=) 25...Bd6?? (better is 25...Bb6 26.R1b6 Nb6–+ (26...Rb6 27.Rc7 Qd8 28.Ra7=)) 26.ed6= Nc5 (26...Qd8 27.Qe2 Nc5 28.d7+=) 27.Rc7+= Qd8 28.Nb5 cb5 29.Qc5 ba4?? (better is 29...Rd6 30.Rc1 h6 (30...ba4? 31.Rc8+–) 31.ab5 d4+=) 30.d7+– Ra8 31.de8Q (31.de8R Qe8 32.Re7 Qf8+–) 31...Qe8 32.Qe7 Qe7 33.Re7 h6 34.Ra1 (34.Rbb7 Rc8 35.Kf1 a3+–) 34...a3 (34...g6 35.Rb7+–) 35.h4 (35.Rc7 e5+–) 35...Kf8 (35...Ra4 36.h5+–) 36.Rb7 Ra4 37.g3 g6 38.Rb3 Kg7 39.Raa3 Rc4 (39...Ra3 40.Ra3 Kf6 41.g4+–) 40.Rb7 Rc8 41.Raa7 Rf8 42.g4 Kf6 (42...g5 43.h5+–) 43.f4 White prepares the advance g5 43...h5 44.g5 Kg7 45.Kf2 Kg8 46.Ke2 Kg7 47.Kd3 Kg8 48.Kd4 (48.Kd4 Kg7 49.Re7+–) 1–0. Nikolic,Jovane (1710) – Custodio,Carolinne Martins (1800), Cordeiropolis BRA, 3rd Open, 2013.

5.c4 dc4 6.Bc4 0-0 7.Nf3 c6 8.0-0 cb5 9.Bb5 Bd7 10.Bd7 Nbd7 11.Nc3 a6 12.Qc2 Qc7 (12...Rc8 13.Rac1+=) 13.Ne2 Rac8 14.d4 Ba7 15.Qc7 Rc7 16.Rfd1 Rfc8 17.Rab1 Rc2 18.Nf4 h6 19.Nd3 Ng4 20.Rdc1 Rc1 21.Rc1 Rc1 22.Bc1 Kf8 23.h3 Ngf6 24.Ba3 Ke8 25.Nde5 Ne5 26.Ne5 Nd7 (better is 26...Bb8=) 27.Nd7+/– Kd7 28.Kf1 (28.Bf8 g6 29.Bh6 f6+/–) 28...Kc6 (28...g6 29.Bf8 h5 30.Ke2=) 29.Ke2 (29.Bf8!? g6 30.Bh6+/–) 29...h5 30.Kd3 Kd5 31.Bb4 b5 32.f3 g6 33.a3 ½–½. Valpa – Mercator, playchess.de, 2004.

5.c4 c6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c6 5.c4 Bc5).

5.d4 Be7 6.Nf3 =+.

5.Be2 c6 6.c4 dc4 7.Bc4 cb5 8.Bb5 Nc6 9.Bc6 bc6 10.Nf3 0-0 11.0-0 (11.Qc2 Be7=) 11...Ba6+= 12.Re1 Qc7 (12...Bd6!?=) 13.Bf6+= gf6 14.d4 Bb4 15.Nfd2 c5 16.Qc2 (16.a3 Bd2 17.Nd2 cd4 18.Qg4 Kh8 19.Qd4 Qe5+=) 16...c4 (16...Rac8 17.a3 Ba5 18.Qe4+=) 17.Rc1 Bd2 (better is 17...Rfc8!?+=) 18.Nd2+/– Rfc8 19.Qa4 (19.Ne4!?+/–) 19...Qc6+= 20.Qc6 Rc6 21.Rab1 (21.Ne4!?+=) 21...c3+= 22.Ne4 (22.Nb3!? Bd3 23.Ra1+=) 22...Bd3–/+ 23.Nf6 Kg7 24.Rb3 Kf6 25.Rbc3 Rc3 26.Rc3 Bb5 27.h3 Rb8 28.Kh2 Be2 29.Rc2 Bh5 30.Rd2 Rb7 31.g4 Bg6 32.Kg3 Be4 33.Kf4 Bc6 34.e4 Ke7 35.e5 (35.g5!?+=) 35...Bd5–/+ 36.Rc2 f6 37.ef6 (37.h4!?–/+) 37...Kf6–+ 38.g5 (38.h4 Rb4 39.g5 Kg6–+) 38...Kg6 39.h4 Rb1 (39...h6 40.gh6 Kh6 41.Kg3–+) 40.Re2 (better is 40.Rc7 a5 41.Ra7–+) 40...Ra1 41.Rd2 Ra2 42.Ra2 Ba2 0–1. Valpa – Gonz_human, playchess.de, 2004.

5.Nf3 Bb6 6.a4 a6 7.c4 Nbd7 8.Be2 0-0 9.0-0 Qe7 10.d4 c5 11.bc6 bc6 12.a5 Bc7 13.c5 (13.Ba3 c5+=) 13...Rb8= 14.Bc3 Ne4 15.Qc2 f5 16.Nbd2 Ndf6 17.Rab1 Bb7 (17...Rb1 18.Nb1 Nc3 19.Qc3=) 18.h3 Nc3 19.Qc3 Ne4 20.Ne4 fe4 21.Nd2 (21.Ne5 Qe8+=) 21...Rf6 (21...e5!?+=) 22.f3 ef3 23.Rf3 (23.Nf3 Qd8+=) 23...e5= 24.Rf6 Qf6 25.Rf1 Qg5 26.Nf3 ed4 27.Nd4 (better is 27.ed4!? Qg3 28.Qe3+=) 27...Qg3 28.Rf3 Qh2 29.Kf2 Rf8?? (better is 29...Be5=) 30.Rf8 Kf8 31.Ne6 Kf7 (31...Ke8 32.Bh5 g6 33.Qh8 Kd7 34.Qg7 Kc8 35.Qg8 Kd7 36.Qf7 Kc8 37.Qe8 Bd8 38.Qd8) 32.Nc7 (32.Qg7 Ke6 33.Bg4) 32...Qc7+= 33.Qb4 Bc8 34.Kf3 Kg6 (34...Kg8 35.Bd3+=) 35.g4 Qf7 36.Qf4 Qf4 37.Kf4 Kf6 38.h4 White plans g5 38...h6 39.g5 Ke7 40.Ke5 hg5 41.hg5 Bd7? (better is 41...Bb7+/–) 42.Ba6+– g6 (42...Be8+–) 43.Bb7 Kd8 44.Kd6 Be8 45.a6 1–0. Hal1958 – Pfox, playchess.de, 2002.

5.Bf6 Qf6 6.d4 0-0 7.Nc3 Bb4 8.Nge2 a6 9.Rb1 Qe7 10.a4 ab5 11.ab5 Bd7 12.Qd3 Ra5 13.Kd1 f6 14.e4 de4 15.Qe4 Qd6 16.Qd3 Ra3 17.Qc4 Ba5 18.Ne4 Qe7 19.Nc5 Bc8 20.Nf4 Re8 21.Bd3 Qd6 22.g3 b6 23.Ne4 Qd7 24.Nh5 Qd8 25.Nf4 Kh8 26.f3? e5–+ 27.Nf6 Qf6 28.Qc7? ef4 29.Qb8 Rd3! 30.cd3 Qd4 31.Qf4 Qd3 32.Kc1 Qc3 33.Kd1 Rd8 0–1. Bestia02c – Nejmet256, computer chess game, 2000.

6.c4 d4 (6...a6 7.d4 Bb4 8.Bc3=+) 7.Nf3= Re8 (7...de3 8.fe3 Bd6 9.Be2=) 8.Bd4 Bb4 (8...Bd4 9.ed4 c5 10.dc5+=) 9.Be2 Ne4 (9...c5 10.Bb2+=) 10.0-0 Nd7 11.d3 Ng5 12.Bc3 Bd6 13.Nbd2 b6 (13...Nf3!? 14.Bf3 Qh4+/-) 14.Ng5 (14.Nd4 Nb8 15.Bf3 Nf3 16.Qf3 c6+-) 14...Qg5 15.Bf3 Rb8 16.Ne4 Qe7 17.Nd6 cd6 18.d4 (18.Bc6 Rf8+-) 18...f5 19.Qb3 Nf6 (19...Bb7 20.Bb7 Rb7 21.Bb4+/-) 20.Bb4 (20.a5 Bb7 21.ab6 ab6+-) 20...Rd8 (20...a5 21.Bc3+/-) 21.Rac1 White prepares c5 (21.a5+-) 21...e5? (better 21...Bb7!?+/-) 22.de5+- Qe5 23.Bc3 Qe7 24.Bf6 Qf6 25.c5 Kh8 (25...Be6 26.Bd5 Bd5 27.Qd5 Qf7 28.Qf7 Kf7 29.c6+-) 26.c6 Qh4 (26...Be6 27.Qc3 Qc3 28.Rc3 Rbc8+-) 27.c7 (27.c7 Bd7 28.Qf7+-) 1-0. BeepBeepImAJeep - ningning (1625), lichess.org, 2016.

6.Nf3 c6 7.c4 cb5 8.cb5 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 b6 12.0-0 Ne4 13.d3 Nf6 14.Nbd2 Nbd7 15.Bb2 Bb7 16.Qa1 Qa8 (16...Qe7 17.Rc1 Ra8 18.Qb1=) 17.Nb3 Qa1 (17...Bd6!?=) 18.Ra1+= (18.Na1?! Ra8=) 18...Bd6 19.Ra7 Rb8 20.g3 Nc5 21.Nc5 Bc5?? (better 21...bc5 22.Ne5 Kf8+/-) 22.Be5+- (22.Be5 Re8 23.d4+-) 1-0. BeepBeepImAJeep - Pere_grine (1645), lichess.org, 2016.

6.Nc3 c6 7.d4 Bb4 8.Qb3 Bc3 (8...Qd6 9.c5 Bc3 10.Bc3+=) 9.Bc3= Qb6 10.c5 Qc7 11.a4 b6 12.Bb4 a5? (better is 12...Re8+=) 13.cb6+– Qd8 (13...Qb6 14.Bc5 Qd8 15.Bf8 Qf8 16.b6+–) 14.Bf8 Qf8 15.bc6 Nc6 16.b7 Rb8 17.bc8Q Rc8 18.Ba6 Rb8 19.Bb5 Nb4 (19...e5 20.Rc1 Na7 21.de5+–) 20.Nf3 Rc8 21.0-0 Ne4 22.Rfc1 Rc1 23.Rc1 h6 24.Ne5 Nd2 25.Qc3 Ne4 26.Qc7 f6 27.Ng6 Qd6 (27...Qa8 28.Qe7 Na6 29.Qe6 Kh7 30.Rc8 Qc8 31.Qc8+– (31.Qa6 Qc1 32.Bf1 Kg6+–)) 28.Qc8 Kh7 29.Qh8 (better is 29.Nf8 Kg8 30.Ne6 Kh7+–) 29...Kg6 30.Be8 Kg5 (30...Kf5 31.Qh7 Kg4 32.Qg7 Kh4 33.Qh6 Kg4 34.Qh5) 31.Qg7 1–0. Taulien,Hans_Juergen – Pieleck,Rudi, remoteschach.de, 2002.

6.cd5 ed5 7.Be2 a6 8.Qa4 =+.

6.cd5 ed5 7.Be2 c6 8.a4 (8.Nf3 cb5 9.Bb5 a6=) 8...cb5 (8...d4 9.Qc1 Ne4 10.Bf3 de3 11.fe3 Qh4 12.g3=+) 9.ab5 Bf5 (9...d4 10.Qa4=) 10.Nf3= Nbd7 11.0-0 Bd6 (11...Re8 12.d4 Bd6 13.Ba3=) 12.d4 (12.Nd4 Be6=) 12...Nb6 13.Nbd2 Rc8 (13...Qe7 14.Qb3=) 14.Rc1 (better is 14.Ra7!? Rc2 15.Ba3 Ba3 16.Ra3+/–) 14...Ne4= 15.Rc8 Qc8 16.Qb3 Nf6 (16...Qb8!? 17.Rd1 Rc8=) 17.Rc1 Qd7 18.Ne5 Be5 19.de5 Ne4 20.Nf3 h6 21.Nd4 Bh7 22.Qb4+/– Rc8 23.Rc8 Qc8 24.Qa3 Nd2 25.Qa7+/– Ndc4 26.Qa1 Nb2 27.Qb2 Nc4 28.Bc4 dc4 29.Qc3 Bd3 30.b6 Qc5=+ 31.Nf3 Qb6–/+ 32.e6 fe6 33.Ne5?? Qb1 (34.Qc1 Qc1) 0–1. gtate (1965) – wmalone (2025), net–chess.com, 2004.

6.cd5 Qd5 7.Bf6 gf6 8.Nc3 +=.

6.Nf3 dc4 7.Bc4 a6 8.Qc2 =.

6.Nf3 dc4 7.Bc4 c6 8.0-0 Nbd7 (8...cb5 9.Bb5 Bd7 10.Bd3=) 9.Nc3 Nb6 10.Bb3 cb5 11.Nb5 a6 (11...Bd7 12.a4=) 12.Nc3 h6 13.d4 Bb4 14.Rc1 Nbd5 15.Nd5 ed5 16.Ne5 Be6 17.Nd3 Ba5 18.Nf4 Qd6 19.Ne6 Qe6 (19...fe6 20.Qd3=) 20.Bc3 (20.Qf3 Ne4+=) 20...Bb6 (20...Bc3 21.Rc3 Rfc8 22.Rc2=) 21.Bd2 Rac8 22.Rc8 Rc8 23.Qb1 Ne4 24.Rd1 g6 25.Bd5?? (better is 25.Bb4=) 25...Qd5–+ 26.f3 Nd2 27.Rd2 Ba5 28.Re2 (28.Rc2 Bc7–+) 28...Qc4 29.Rf2 (29.Kf2 b5–+) 29...Qc3 (29...Re8 30.Qc2 Qc2 31.Rc2 Re3 32.Kf1–+) 30.Qb7 (30.Re2 b5–+) 30...Qe1 31.Rf1 Qe3 32.Kh1 Qc3 (32...Rc1 33.Qa6 Bc7 34.Qe2 Qe2 35.Rc1 Qa2 36.h3–+) 33.Qa6 Re8 34.h3 Bc7 0–1. Valpa – Leroy43, playchess.de, 2002.

6.Nf3 dc4 7.Bc4 Bd7 8.0-0 c6 9.a4 cb5 10.ab5 a6 11.Nc3 (11.d3 Bd6+=) 11...Be8 (11...Qc7 12.Qb3=) 12.Qb3 (12.Qe2 Qd6+=) 12...Qc8 (12...Bd6 13.Rfc1+=) 13.d4 Bb6? (13...Bd6 14.e4 Be7 15.Rfc1+–) 14.Rfc1 (14.ba6 ba6 15.Ba3 Bc7+–) 14...a5? (better 14...Bd7!?+–) 15.Na4 Qc7 (15...Bc7 16.Ba3+–) 16.Be6 Qd6 (16...Qd8 17.Rc8 (17.Nb6?! Qb6 18.Bc4 Ne4+–) 17...fe6 18.Rd8 Bd8 19.Ba3+– (worse 19.Qe6 Bf7 20.Qc8 Bd5+–)) 17.Bc4 (17.Nb6?! Qb6 18.Bc4 Ne4+–) 17...Nbd7 (17...Qd8 18.Ba3+–) 18.Ba3 (18.Nb6?! Qb6 19.Ba3 a4+–) 18...Qb8 (18...Qc7 19.Bf8 Nf8 20.Ne5+–) 19.Bf8 Nf8 (19...Kf8 20.Ng5 Ng4+–) 20.Nb6 a4 21.Ra4 (21.Qb4 Ra7 22.Bf7 Bf7+–) 21...Ra4 22.Na4 N8d7 (22...Qd6 23.Ne5 Qe7 24.b6+–) 23.Nc5 (better 23.Ng5!? Kh8 24.Bf7 h6 25.Be8 Qe8 26.Nf7 Kh7+–) 23...Nc5 24.dc5 Nd7 (24...Qc8 25.Ng5 Qc7 26.b6+–) 25.Bd5 (25.c6 Nb6+–) 25...Qc7 (25...Nf6 26.c6 bc6 27.bc6+–) 26.c6 (26.b6 Qc8+–) 26...bc6 (26...Nb6 27.Ng5 bc6 28.Rc6+–) 27.bc6 Nb6 (27...Nf6 28.Bc4 Qc6 29.Bf7 Bf7 30.Qb8 Qe8 31.Rc8+–) 28.Be4 1–0. GuestTRNQ – GuestJYGM, freechess.org, 2017.

6.Nf3 dc4 7.Bc4 Nbd7 8.0-0 (8.d4 Bd6=) 8...c6 (8...Nb6 9.Ba3 Bd6 10.Bd6 Qd6 11.Be2=) 9.d4 Bb6 (9...Bd6 10.Nc3=) 10.a4 (10.bc6 bc6 11.Nc3 c5+=) 10...a6 (10...cb5 11.ab5 Bc7 12.Bd3+=) 11.Nc3 ab5 (11...cb5 12.ab5 Bc7 13.ba6 ba6 14.Qe2+=) 12.ab5 Ra1 13.Qa1 Nd5 (13...Bc7 14.bc6 bc6 15.Ba3+/–) 14.Ba3 Re8 15.Bd6 (15.bc6 bc6 16.Bd6 Ba5+/–) 15...Nc3 (15...N7f6 16.Be5+=) 16.Qc3 Bc7 (16...Ba5 17.Qa3+=) 17.Bc7+/– Qc7 18.Ra1?? (better is 18.bc6 Qc6 19.Rb1+/–) 18...cb5–+ 19.Qb4 Qc4 20.Rc1 (20.Qb2–+) 20...Qc1 (better is 20...Qb4 21.Kf1–+) 21.Ne1 (21.Qe1 Qe1 22.Ne1 b4–+) 21...Qc4 (22.Qb2 e5–+; 21...Nb8!? 22.Kf1–+) 0–1. toll (1670) – DDS, ICC, 2003.

6.Nf3 Ne4 7.d3 Bb4 8.Nbd2 dc4 9.de4 =+.

6.c3 Ba5 7.Qa4 Bb6 (7...c6 8.Nf3=) 8.Ba3 (8.Nf3 a6+=) 8...Nbd7 (8...a6 9.Nf3=) 9.Nf3 (9.Nd2 e5+=) 9...a6 (9...Ne4!?+=) 10.Nbd2+– Nf8 (10...Ne4 11.Ne4 de4 12.Nd2+–) 11.ba6 Bd7 (11...c6 12.Qb3 Ng6 13.Bd3+–) 12.Qc2 ba6 (12...Ng6 13.Be2+–) 13.Bd3 (13.c4 Ng6+–) 13...Ng6 (13...Rc8 14.0-0+– (14.Ba6?! Ra8 15.Bf8 Kf8+=)) 14.0-0 1–0. GuestZZWX – GuestHVJN, freechess.org, 2020.

6.c3 Ba5 7.Nd2 0-0+=.

6.c3 Ba5 7.Nd2 c6 8.Nb3 b6 (better 8...Bc7!?=) 9.Na5+= ba5 10.a4 cb5 11.Bb5 Bd7 12.Qb3 (12.Bd3!?+=) 12...Bb5= 13.Qb5 Qd7 (13...Nbd7 14.Ba3=+) 14.Qd7 (14.c4!? Qb5 15.ab5 dc4 16.Ra5=) 14...Nbd7=+ 15.Ba3 h5 16.Ne2 Ne4 (16...Rc8!?=+) 17.f3+= Ng5 (17...Nef6 18.Bd6=) 18.0-0 f5 (18...h4 19.Rfb1+=) 19.Rab1 (19.h4 Nf7+=) 19...Kf7 (19...Nb6!?+=) 20.Rb7+/- Rad8 (better 20...Rhd8!?+/-) 21.Ra7+- Kg6? (21...h4 22.Rb1 (22.Ra5?! Ra8 23.Ra8 Ra8+/-) 22...Nh7 23.Rbb7+-) 22.Nf4 (22.Be7 Kh6+-) 22...Kf6 (22...Kf7 23.Rb1 (23.Ra5?! Ra8 24.Rb5 Ra4+-) 23...Nh7 24.Nh5+- (24.Ra5?! Ra8 25.Rb7 Nhf6+-)) 23.Rb1 (23.Ra5?! Ra8 24.Ra8 Ra8+-) 23...h4 (23...Nh7 24.Rbb7 (worse 24.Nh5 Kg6 25.Nf4 Kf7+-) 24...g5 25.Nd3+- (worse 25.Rd7 Rd7 26.Nh5 Kg6 27.Rd7 Kh5+-; 25.Nh5?! Kg6+-)) 24.Ra6 (better 24.Rb6! Rhe8 25.Rd6 Nf7 26.Rdd7 Rd7 27.Rd7 g6+-) 24...h3 (24...Rb8 25.Nd5 Kf7 26.Rb8 Rb8 27.Ra7 ed5 28.Rd7 Kf6 29.Rd6 Ne6 30.Rd5 Rb1 31.Kf2+-) 25.Nd5 (25.Rb7 hg2 26.Kg2 Kf7+-) 25...Kf7 26.Nf4 hg2 27.Kg2 Nb8 (27...e5 28.Nd5 Rh6+-) 28.Ra5 (28.Rb7 Rd7 29.Raa7 Rhd8 30.Rb8 Ra7 31.Rd8 Nh7+-) 28...Nc6 (28...Kf6 29.Rb7 Rd7 30.Rab5 Rb7 31.Rb7+-) 29.Ra6 Nb8 (29...Rb8 30.Rb8 Nb8 31.Ra7 Kg8 32.Ng6+-) 30.Ra7 (30.Rb7 Rd7 31.Rab6 Nh7+-) 30...Rd7 (30...Nd7 31.Rbb7 Ke8 32.Ng6+-) 31.Rbb7 Rb7 (31...Rhd8 32.Rb8! Ra7 33.Rd8 Nh7+-) 32.Rb7 Kf6 33.Be7 Kf7 34.Bg5 Kg8 35.Rb8 Kh7 36.Rh8 Kh8 1-0. Fuirio (1620) – sasik, Rated Classical game, lichess.org, 2013.

6.c3 Bd6 7.Nf3 a6 8.Qa4 0-0 9.c4 dc4 10.Bc4 Nbd7 11.ba6 Nb6 12.Qc2 Nc4 13.ab7 Ne3 14.Qh7 Nh7 15.ba8Q Ng2 16.Kd1 e5 17.Qc6 Nf4 18.Kd2 Bg4 19.Nc3 Bb4 20.Kc2 Bf5 21.Kb3 Be6 22.Kb4 Nd3 23.Ka5 Bc4 24.Nb5 Qa8 25.Qa6 Qd5 26.Ka4 Ra8 27.Na7 Ra7 28.Qa7 Qb5 29.Ka3 Qb4# 0–1. Machete99 (2060) – Plumpudding (2275), ICC, 2002.

6.a4 0-0?? 7.a5 +–.

6.a4 0-0?? 7.Bc3?? c5 (7...a5 8.Bd3=) 8.a5 Bc7 9.Nd2 b6 10.dc5 bc5=+ 11.b6 ab6–/+ 12.ab6 Ra1 13.Qa1 Bb6 14.Bf6 Qf6 15.Qf6 gf6 16.Ngf3 Nc6 17.c3 e5 18.Bb5 Bb7 19.Bc6 Bc6 20.0-0 d4 21.ed4–/+ cd4 22.cd4 ed4 23.Nc4 Rb8 24.Rb1 Ba7 25.Nd4?? Rb1# 0–1. Manure – mazz19, caissa.com, 2007.

6.a4 Ba5 7.Bc3 Bc3 8.Nc3 0-0 9.Nf3 c6 (9...Qd6 10.Bd3=) 10.Rb1 (10.Bd3 a6 11.0-0 Qc7+=) 10...Qa5 11.Qd3 (11.Qd2 Bd7=) 11...Bd7 (11...Ne4 12.Rb3 c5 13.Nd2–+) 12.Ne5 (12.Qd2 cb5 13.Nb5 Qa4–+) 12...a6 (12...Ne4 13.Rb3 c5 14.Ra3–+) 13.b6? (13.ba6 ba6 14.Qd2 c5 15.dc5 Ba4+=) 13...Be8 (13...Ne4 14.Rb3 f6 15.Nd7 Nd7 16.Ke2–+) 14.Be2? (14.Qd2 Nbd7=) 14...Nbd7 (better is 14...Ne4!? 15.Rb3 f6–+) 15.Nd7+= Nd7 16.0-0 Nf6 (16...c5 17.e4 Rc8 18.ed5 cd4 19.Ne4 Qd5 20.Rfd1–/+) 17.f3 (17.Rb3!?=) 17...c5 18.Rb2 (better is 18.dc5 Rc8 19.Rb3+=) 18...Ba4?? (better is 18...Rc8 19.Nb1 Qa4–/+) 19.Ra1 (19.Na4 Qa4 20.dc5 Rfc8–/+) 19...Bc2 20.Qh7?? (better is 20.Ra5 Bd3 21.Bd3 cd4 22.ed4+/–) 20...Bh7–/+ 21.Ra5 cd4 22.ed4 Rac8 23.Na4 Nh5?? (23...Rc1 24.Kf2 Nd7 25.Ba6 ba6 26.Ra6–/+) 24.g3 (better is 24.Nc5 Rb8 25.Nd7+=) 24...Rc1–/+ 25.Kg2 Nf6 26.Nc5 Rb8 27.g4 Rb1 28.Rb1 Bb1 29.g5 Ne8 30.Nd7 Rc8 31.Nc5 Nd6–/+ 32.h4 Kh7 33.h5 Nf5 34.Nb7? Nd4?? 35.Ba6 Rc2 36.Kg3 Nf5 37.Kf4= Rb2? 38.Rb5+– Rb5 39.Bb5 Ne7?? 40.Nd6 f6 41.b7 e5 42.Kg3 1–0. Baer,Cy (1895) – Pieleck,Rudi (1770), RSS4D easy–40, 2007.

6.a4 c6 7.Bd3 =.

6.Nc3 0-0 7.Bd3 a6 =.

6.Nc3 0-0 7.Nge2 Ba5 8.Qd3 =+.

6.Nc3 0-0 7.Nge2 a6 8.Ba3 Re8 =+.

6.Nc3 0-0 7.Nge2 a6 8.Na4 ab5 (better is 8...Ba5!? 9.Nec3 Ne4–/+) 9.Nb6= cb6 10.c3 (10.Nf4 b4=) 10...Bd7 (10...Nc6 11.Nf4=) 11.Nc1 (11.Nf4 Nc6=) 11...Na6 (11...Qe7 12.Qb3=) 12.Be2 (12.Nb3 b4=) 12...b4 13.cb4 (13.c4 dc4 14.Bc4 Bc6=) 13...Nb4 14.0-0 Ba4 15.Nb3 Bb3 (15...Qd6 16.a3 Nc6 17.Qd3=+) 16.ab3 Ra1 17.Ba1 Ne4 18.Bf3 Nd6 19.Qd2 Na6 20.b4 b5 21.Be2 Qd7 22.Rc1 f6 23.Bh5 g6 24.Bf3 f5 25.h4 Nc4–/+ 26.Qc2 Nb4 27.Qe2 Nc6 28.Bc3 b4 29.Be1 b3 30.Bc3 b2 31.Bb2 Nb2 32.Qb2 Rb8 33.Qb6 Qd6–/+ 34.Ra1 Qb4 35.Qb4 Nb4–/+ 36.Rb1 Nd3?? 37.Rb6 Kf7= 38.Rd6 Ke7 39.Rb6=+ Kd7 40.Be2 Nc1 41.Bb5 Kc7 42.Re6 Nb3 43.Re7+/– Kb6 44.Be2 Rh8 45.Re5 Rd8+/– 46.h5 f4 47.ef4 Nd4=+ 48.hg6 hg6 49.Bg4 Kc5–/+ 50.Rg5 Rd6 51.f5 gf5 52.Bf5 b5 53.Bg4 b4–+ 54.Rg8 b3 55.Rc8 Rc6 56.Ra8?? b2 57.Rb8 Rb6 58.Rc8 Nc6 59.Bf5 b1Q 60.Bb1 Rb1 61.Kh2 Kd6 62.g4 Rb2 63.Kg3 Ne5 64.g5 Rb3 65.Kg2 Rb7 66.Rd8 Ke6 67.f4 Nf7 68.Rg8 Kf5 69.g6 Nh6 70.Rf8 Kg6 71.Kf3 Kg7 72.Re8 Rb3 73.Ke2 d4 74.Re7 Kf6 75.Rh7 Nf5 76.Rh8 Ke6 77.Re8 Kd5 78.Re5–/+ Kc4 79.Rf5 Re3 80.Kf2 Rh3 81.Rf8 d3 82.Ke1 Kc3 83.Rc8 Kd4 84.f5 Ke5 85.Rf8 Kd6 86.f6 Ke6 87.f7 Ke7 88.Re8 Kf7–/+ 89.Rd8 Ke6 90.Kd2= Ke5 91.Rd3 Rh2 92.Kc3 Ke4 93.Rd4 Ke5 94.Kc4 Ra2 95.Rd5 Ke4 96.Rd4 Ke5 97.Rd5 Ke6 98.Rd4 Ra4 99.Kd3 Ra3 100.Kc4 Ra4 101.Kd3 Rd4 102.Kd4 ½–½. pinecrest1981 – Azhole, Live Game Caissa's Web, 2005.

6.Nc3 a6 7.Nf3 =.

6.Nf3 0-0 7.Be2 c6 8.a4 a6 9.0-0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3 Nc6 14.Bb2 Re8 15.Ba3 (15.Ne5 Nb4=) 15...Qc7 16.c4 (16.Nbd2 Ra8 17.Qc1 e5 18.de5 Ne5 19.Ne5 Qe5=) 16...e5 (better is 16...dc4!? 17.Be2 Ba7–/+) 17.c5 (17.de5 Ne5 18.cd5 Nf3 19.Qf3 Bg4=) 17...Ba5= 18.Be2 b6 (18...ed4 19.Nd4 Nd4 20.Qd4=) 19.Nbd2 (19.cb6 Bb6 20.de5 Ne5=) 19...bc5 (19...e4 20.Ne1=+) 20.dc5 (20.Bc5 e4 21.Ne1 Nd8=+) 20...Bb4 (20...Bf5 21.Bb5=+) 21.Bb4 Nb4 22.Qa1 (22.Qc1 Rb8=) 22...e4 (22...Qc5?! 23.Ne5 Bf5 24.Rc1=) 23.Ne1 (23.Nd4!? Qc5 24.Rc1=+) 23...Qc5 24.Nb3 Qd6 25.f3? (better is 25.Nd4!?–/+) 25...ef3–+ 26.Rf3 Bg4 27.Rf6–/+ Qf6 28.Qf6 gf6–+ 29.Bg4? Re3 (30.Nc5 Re1 31.Kf2 Rc1–+) 0–1. Suess – Weiss, Odenwald, 1984.

6.Nf3 a6 =.

6.Be2 0-0 7.Nf3 (7.Ba3 Ba3 8.Na3 c5 9.Nb1 Bd7 10.a4 cd4 11.ed4 Qa5 12.Qd2 Qc7 13.Ra3+=) 7...a6 8.c4 dc4 9.Bc4 Bd7 10.ba6 b5 11.Be2 Na6 12.0-0 Qb8 13.Ne5 =.

6.Be2 a6 7.Nf3+= (7.ba6 Na6 8.Ba3 Ba3 9.Na3 c5 10.Nb5 Ne4 11.c3 Bd7 12.Bd3 Qa5 13.Qb1–/+) 7...ab5 8.Bb5 Bd7 9.Bd3 Nc6 10.0-0 0-0 11.a3 Ra5 12.Nbd2 Qe7 13.e4 +=.

6.Be2 Bd7 7.Nf3= (7.Ba3 Ba3 8.Na3 c5 9.bc6 Nc6 10.Nb1 0-0 11.Nf3 Rc8 12.0-0 Ne4 13.c4=) 7...Qe7 (7...a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 0-0 12.0-0 Qc7 13.Qb1=) 8.c4 dc4 9.Nc3 a6 10.Bc4 ab5 11.Nb5 Bb4 12.Nc3 Nd5 13.Bd5 =. TheWelshKnight – pieeater, ChessWorld.net, 2014.

6.Be2 Nbd7 7.c4 (7.Nf3 a6 8.Ba3 Ba3 9.Na3 Qe7 10.Qc1 e5 11.c4 ed4 12.Nd4 dc4 13.0-0=) 7...dc4 8.Bc4 e5 9.Ne2 Nb6 10.Bb3 e4 11.Nbc3 a6 12.Qc2 Qe7 13.ba6 =.

6.Be2 Ne4 7.Nd2 (7.Nf3 a6 8.Nbd2 Bb4 9.ba6 b6 10.c4 0-0 11.a3 Bd2 12.Nd2 Nd2 13.Qd2=) 7...Nd2 8.Qd2 a6 9.Nf3 ab5 10.Bb5 Bd7 11.Bd3 Nc6 12.c4 dc4 13.Bc4 =.

6.Nf3 0-0 7.Bd3 b6 (7...a6 8.a4=) 8.0-0 (8.Nc3 Bb7=) 8...c5 (8...a6 9.Nc3=) 9.c4 (9.dc5 bc5 10.Nbd2 Bb7=) 9...Bb7 (9...Nbd7 10.Nbd2=) 10.Nbd2 Nbd7 11.a4 (11.Qe2 Ne4=) 11...Qc7 (11...h6 12.h3=) 12.g3 Ng4 (12...a6 13.Qe2 ab5 14.ab5=) 13.Bh7 (13.a5 ba5 14.Bc3 f5=) 13...Kh7= 14.Ng5 Kg8?? (better 14...Kg6 15.Ne6 fe6 16.Qg4 Kh7 17.Qh3 Kg6 18.Qg4 Kh6 19.Qh4 Kg6 20.Qg4=) 15.Qg4+- Nf6 16.Qh4 cd4 17.cd5 Bd5 18.Rfc1 Qb7?? (better 18...Qd7+-) 19.e4+- e5 (19...Rfd8 20.ed5 Qd5+-) 20.ed5 Qd5 (20...Rfc8 21.Nde4 Qd5 22.Rc8 Rc8 23.Nf6 gf6 24.Ne4+-) 21.Nde4 Rfc8 (21...Rfd8 22.Rc6 Ne4 23.Qh7 Kf8 24.Ne4+-) 22.Nf6 gf6 23.Rc8 Rc8 24.Ne4 Kf8 (24...Qe6 25.Nd6 Rd8+-) 25.Nd6 Rd8 (25...Qd6 26.Qh8 Ke7 27.Qc8 a6 28.ba6 b5 29.a7 f5 30.a8Q Kf6 31.Qh8 Ke6 32.Qae8 Qe7 33.Qc6 Qd6 34.Qhe8 Kf6 35.Qd6 Kg5 36.Qee5 ba4 37.Qf4 Kh5 38.Qf5) 26.Nf5 Ke8 27.Qf6 (27.Qf6 Kd7 28.Qe7 Kc8 29.Qa7 Rd7 30.Rc1 Qc5 31.Rc5 bc5 32.Ne7 Re7 33.Qe7 f6 34.b6 Kb8 35.Qc7 Ka8 36.Qa7) 1-0. GuestBHFS – ootoro, freechess.org, 2020.

6.Nf3 a6 7.Nc3=.

6.Nf3 c5 7.c4 cd4 (7...0-0 8.Nc3=) 8.Qd4+= 0-0 (8...Qa5 9.Bc3 Qc7 10.cd5 ed5 11.Bd3+=) 9.cd5 ed5 10.Be2 Qa5 (10...a6 11.Nc3 Be6 12.0-0+=) 11.Nbd2 Bf5 12.0-0 Re8 (12...Nbd7 13.Rfc1+=) 13.Bc3 Qa3 (13...Qd8 14.Bb4+=) 14.Nb1 Bb1 15.Rfb1 Nbd7 16.Rb3 Qc5 17.Qh4 (17.Qd1 Qc7+=) 17...Qc7 (17...Ne5 18.Rd1+=) 18.Rc1 (18.Bd4 Qa5+=) 18...Rac8 19.Rbb1 (19.Bd3 Ne4+=) 19...Ne4 (19...Ba3 20.Bb2 Qa5 21.Rc8 Rc8 22.Bf6 Nf6 23.Qf4=) 20.Bb2 Bc5 (20...Ndc5!?+=) 21.Ng5+- Ndf6 22.Bg4 Rcd8 23.Ne4 Ne4 24.Bf5 h6 25.Be4 de4 26.Qg4 g6? (better 26...f6 27.Bf6 Rd5+-) 27.Qh4+- h5 (27...Rd5 28.Qh6 Ree5 29.Rd1+-) 28.Qf6 Kf8 29.Qg7 (29.Rc4 b6 30.Qh8 Ke7 31.Re4 Kd7 32.Rd1 Bd6 33.Re8 Re8+-) 29...Ke7 30.Rc4 Rf8 (30...Rd2 31.Re4 Kd7 32.Qf7 Re7 33.Qg6 Rd5+-) 31.Bf6 Kd7 (31...Ke6 32.Re4 Kd7 33.Bd8 Rd8 34.Qf7 Kc8 35.Qg6+-) 32.Bd8 Qd6 (32...Rd8 33.Qf7 Kc8 34.Qc7 Kc7 35.Rc5 Kb6 36.Re5+-) 33.Qa1 (33.Rbc1 b6 34.Bf6 Qd2+-) 33...Rd8 34.Rd1 Ke6 35.Re4 (35.Re4 Kf5 36.Rf4 Qf4 37.ef4 Rd1 38.Qd1+-) 1-0. GuestYMLD – GuestDRXY, freechess.org, 2020.

6.a4 c6 7.Be2 cb5 8.ab5 Bd7 9.0-0 Bb6 10.c4 dc4 11.Bc4 Qe8 (11...Bc7 12.d3+=) 12.Nc3 (12.Ba3 Bb5 13.Bb5 Qb5 14.Bf8 Kf8+-) 12...Qc8 (12...Qd8 13.Ne5+=) 13.Qb3 h6 (13...Qd8 14.Rfc1+-) 14.d4 (better 14.Na4 Bc7 15.Bf6 gf6 16.d4+-) 14...Be8? (better 14...Rd8+-) 15.Ba3+- Nbd7 16.Bf8 Nf8 17.Rfc1 N8d7 18.e4 Qb8 19.e5 Ng4 (19...Nh7 20.Na4+-) 20.Be6 Nge5 21.Ne5 Ne5 22.de5 Qe5 (22...fe6 23.Qe6 Bf7+-) 23.Bd5 Qf4 (23...Rd8 24.Bb7 Rd2 25.Ne4+-) 24.Rc2 Bc7 (24...Rb8 25.Re1+-) 25.g3 Qd6 (25...Qf6 26.Bb7 Rb8 27.Re1+-) 26.Re2 Kh7 (26...Qd8 27.Bb7 Rb8 28.Rae1+-) 27.Bb7 Rb8 28.Be4 g6 (28...Kg8 29.Bd5 Kf8 30.Ra7+-) 29.Ra7 Bb6 (29...Qc5 30.Rb7 Rb7 31.Bb7 Be5+-) 30.Rf7! Bf7 31.Qf7 Kh8 32.Bg6 Rf8 32...Qg3 33.hg3 Bf2 34.Kf2 Rb5 35.Re8) 33.Qh7 1-0. GuestRGGS – GuestBPYW, freechess.org, 2020.

6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Qc2 Qa5 (better 10...dc4 11.Bc4 Bd6=) 11.Bf6+- gf6 12.cd5 cd5?? (better 12...Qb4 13.dc6 bc6+-) 13.Qc5+- Qa2 (13...Bd7 14.Qc3 Qa2 15.Qb4+-) 14.Bd3 Nd7 15.Qd6 Qb3 (15...Kh8 16.0-0+-) 16.Nc3 e5 17.Nd5 (17.Bf5 Nb8 18.Bc8 Rc8+-) 17...Qd3 (17...Re8 18.Bf5 e4+-) 18.Nf6 (18.Nf6 Nf6 19.Qd3+-; better 18.Ne7 Kg7 19.Qd3 Nb6+-) 1-0. DEFFM – GuestKRMC, freechess.org, 2019.

6.c4 a6 7.d4 Bb4 8.Bc3 =+.

6.c4 dc4 7.Bc4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 cb5 12.Nb5 Nbd7 13.Qc2 b6 14.0-0 Ba6 (14...Bb7 15.d4 Bf3 16.gf3=) 15.d4 Bb5 (15...Be7 16.Bd3+=) 16.Bb5 Be7 17.e4 Qc8 (better 17...Ne8!?+–) 18.Qc8+– Rc8 19.e5 Nf8 (19...h6 20.Bb2+–) 20.ef6 Bf6 21.g3 h6 (21...Ng6 22.Rb1+–) 22.Kg2 (22.Ne5 g6+–) 22...Rc2 (22...Ng6 23.Rb1+–) 23.Bd3 Ra2 24.Bc4 Ra4 25.Bb5 Rb4 26.Bd3 Rb3 27.Bc4 Rb4 28.Rc1 Ra4 29.Ne5 Bg5 (29...g5 30.Kf3+–) 30.f4 Be7 31.f5! ef5 (31...Bg5 32.Bb3 Ra3 33.Rb1+–) 32.Bf7 Kh7 33.Bb3 Rb4 (33...Ra8+–) 34.Rb1 Kh8 (34...Bd6 35.Nc6 Rb3 36.Rb3+–) 35.Nc6 Rb3 1–0. DEFFM – GuestKNFM, freechess.org, 2018.

6.c4 dc4 7.Bc4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bd7 11.0-0 c6 12.Nc3 cb5 13.Nb5 Bb5 14.Bb5 Nbd7 15.d4 Be7 16.Bd3 Qc8 17.Qb3 Qc7 18.Bb2 Ng4 (18...Qb6 19.Qc2+=) 19.h3 Ndf6?? (better 19...Ngf6+–) 20.hg4+– Ng4 21.Rc1 Nf2 (21...Qd7+–) 22.Rc7 Bh4 23.Nh4 1–0. GuestXJLS – GuestSJFK, freechess.org, 2017.

6.c4 dc4 7.Bc4 c6 8.a4 cb5 9.ab5 Qb6 10.0-0 Be7 11.Bd4 Qd6 12.Qb3 (12.Ra7 Ra7 13.Ba7 Nbd7+=) 12...b6 (12...Nbd7 13.Ra7 Ra7 14.Ba7=) 13.Nc3 (13.Be5 Qd7+=) 13...Bb7 14.Ne5 (14.Be5 Qb4+=) 14...Nbd7 15.f4 Bd5 (15...Rfc8 16.Ra4+=) 16.Bd5+- Nd5 17.Ne4 Qb4?? (better 17...Qc7+-) 18.Qb4+- Nb4 19.Nd7 Rfd8 20.Ne5 Nd5 (20...f5 21.Nc3+-) 21.Nc6 Re8 (21...Rd7 22.f5+- (worse 22.Ne7 Re7 23.Nc3 Nc3 24.dc3 Rd8+-)) 22.f5 (worse 22.Ne7 Re7 23.Nc3 Rd8+-) 22...ef5 23.Rf5 Nf6 (23...Nb4+-) 24.Ne7 Re7 25.Nf6 gf6 26.Bb6! Rae8 (26...ab6 Exploits the pin 27.Ra8) 27.Ba7 Kg7 28.Bd4 Kg6 (28...Re6 29.Ra6+-) 29.Raf1 Re6 30.Bf6 (better 30.Rf6 Rf6 31.Rf6 Kg5 32.Rf7+-) 30...Rd6 (30...h6+-) 31.Rg5 Kh6 32.h4 Rd2 (32...Rg8 33.Rg8 Rd5 34.g4 Rb5 35.Bg7 Kg6 36.Rf6) 33.Bg7 1-0. DEFFM – GuestFTCH, freechess.org, 2020.

6.c4 c6 7.a4 b6 8.Nc3 e5 (better 8...a6!?=) 9.Ne5+= d4. GuestKZQQ – GuestRFVK, freechess.org, 2017.

6.c4 c6 7.Bd3 cb5 8.cb5 (8.cd5 ed5 9.Bb5 a6=) 8...Nbd7 9.0-0 b6 (9...Bd6 10.Nc3=) 10.g3 (10.Be2 a6=) 10...Bb7 (10...a6 11.Qe2=+) 11.Qa4 (11.Be2 a6=+) 11...Be7 12.Qh4 (better is 12.Qf4=+) 12...Nc5?? (better is 12...Rc8=+) 13.Bf6+– Nd3 14.Be7 Qd7 15.Bf8 Rf8 16.Qa4 Nc5 17.Qa7 d4 18.Qb6 Rc8?? 19.Nd4 Ne4 20.a4 Qd5 21.f3 e5 22.fe4 Qe4 23.Nf3 g5 24.Nc3 Rc3 25.Qd8 Kg7 26.Qg5 Kf8 27.dc3 (27...Ke8 28.Qe5 Qe5 29.Ne5+–) 1–0. mtrold1 – sondergaard, internet live, 2001.

6.c4 c6 7.Bd3 dc4 8.Bc4 cb5 9.Bb5 =.

6.c4 c6 7.d4 Bb4 8.Bc3 Be7 =.

6.c4 c6 7.cd5 cd5 8.Nc3 Nbd7 9.Be2 Nb6 10.0-0 Nc4 (10...Bd6 11.d3=) 11.Bc4+= dc4 12.Rc1 b6 (12...Bd7 13.Ne5+=) 13.Ne5+– Bb7 14.Nc4 Bd5 (14...a6!?+–) 15.Nd5+– Qd5 16.Bf6 gf6 17.d4 Be7 18.a4 Kh8 19.Qe2 Rg8 20.g3 Rg6 (20...Rac8 21.Rfd1+–) 21.Rfd1 Rag8 (21...Qd7 22.e4+–) 22.e4 Qd8 (22...Qb7 23.Qd3+–) 23.Ne3 Qd6 (23...Qb8 24.Rc6 Rd8 25.Nc4+–) 24.Rc6 Qb4 25.Qa2 f5 (25...Kg7+–) 26.ef5 ef5 27.Nf5 Bf6 (27...Rf8 28.Rc4 Qa3 29.Qb1+–) 28.Rc4 Qf8 29.Rc7 h5 (29...Bd8 30.Rf7 Qe8 31.Ra7+–) 30.Rf7 Qb8 (30...Qe8 31.Nd6 Qa8+–) 31.Qe2 Rg5 32.Rf6 (32.Rf6 Rf5 33.Rf5 Qd6 34.Qh5 Kg7 35.Rf7) 1–0. DEFFM – Oaklands, freechess.org, 2019.

6.c4 c6 7.cd5 ed5 8.a4 (8.Nc3 a6 9.a4 d4 10.ed4 Bd4=) 8...a6 (8...Bf5 9.Nc3=+) 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Bg4 (11...cb5 12.Bb5 Nc6 13.0-0=) 12.0-0 Nbd7 (12...cb5 13.Bf6 Qf6 14.Nc3=) 13.d4 (13.h3 Bf5=) 13...Bb6 (13...Bd6 14.h3 Bf5 15.Nc3=) 14.bc6 bc6 15.Nbd2 c5 16.dc5 Bc5 (16...Nc5 17.Qc2+=) 17.h3+= Bh5 18.Nb3 Bb6 (18...Bd6 19.Nbd4+=) 19.Nfd4 (19.g4 Bg6+–) 19...Bd4 (19...Be2 20.Qe2 Qa8 21.Nf5+=) 20.Nd4 Be2 21.Qe2 Ne4 (21...Qa8 22.Nf5+=) 22.Nc6+– Nb6?? (better 22...Qg5+–) 23.Nd8+– (23.Nd8 Na4 24.Nc6+–) 1–0. GuestSBVJ – GuestHCYG, freechess.org, 2020.

6.c4 Nbd7 7.Nc3 e5 (7...a6 8.ba6 ba6 9.d4=) 8.cd5+= e4 (8...Re8 9.Qc2+=) 9.Ng5 Re8 10.Qc2 Qe7 11.Bc4 Ne5 12.Be2 h6? (better 12...Ned7!? 13.d3 ed3 14.Qd3 Nb6+–) 13.Nge4+– Ne4 14.Ne4 Bf5 15.0-0 Bb6 16.f4 Ng6 (16...Qb4 17.fe5 Be4 18.Rf4 Bc2 19.Rb4+–) 17.Qc3 f6 18.Ng3 Be4 (18...Nh4+–) 19.Qc4 Kh7 20.f5 (20.Qe4?! Qe4 21.Ne4 Re4+–; 20.Ne4?! Qe4 21.Qe4 Re4+–) 20...Nh4 21.Rf4 Ng2 (21...Bd5 22.Qd5 Rad8 23.Qb7 Rd2+–) 22.Re4 (22.Re4 Ne3 23.de3 (23.Re7?! Nc4 24.Kg2 Nb2=; worse 23.Re3 Be3 24.de3 Qe3 25.Kh1 Re7+–) 23...Be3 24.Kg2+–; 22.Ne4?! Nf4 23.Nf6 gf6 24.Qf4 Rad8+=) 1–0. DEFFM – GuestWGLH, freechess.org, 2018.

6.c4 Re8 7.Be2 c6 8.a4 Nbd7 9.Nc3 e5 10.cd5 cd5 11.d4 ed4 12.ed4 Bd6 13.0-0 Bb4 14.Qc2 Ne4 (14...Nf8 15.Bd3=) 15.Ne4 (better is 15.Nd5 Bd6 16.Rfe1+/–) 15...de4= (worse is 15...Re4 16.Bd3 Nf6 17.Qb3+/–) 16.Ne5 Ne5 17.de5 Bf5 18.Rfd1 Qg5 19.g3 (better is 19.Qc1!? Qg6 20.Qe3=) 19...Rac8+= 20.Qb3 Bc5 Black prepares the advance e3 21.Bc4 Be6 22.Be6 Re6 23.Rac1 e3 24.Rc5? (better is 24.Bd4 ef2 25.Kg2 f1Q 26.Kf1=) 24...Rc5?? (24...ef2 25.Kf1 Rc5 26.Qe3=) 25.Bd4?? (25.Qe3 Qe7 26.Ba3+–) 25...Rd5?? (better is 25...ef2!? 26.Kf2 Rc1–+) 26.Be3 (better is 26.Qd5 e2 27.Re1+–) 26...Rd1–/+ 27.Qd1 Qe7 28.f4 g6 29.Ba7+= Kg7 30.Bb8 h6 31.Bd6 Qe8 32.Qd5 Qc8 33.a5 Qc1 34.Kg2 Qc2 35.Kh3 Qc1 36.Qb7 Qf1= 37.Kh4?? g5–+ 38.fg5 hg5 39.Kg5 Qc1 40.Kg4?? Qc4 41.Kf5?? Qd3 42.Qe4+/– Qf1 43.Qf4 Qb5 44.h4?? Qa5 45.h5?? Qd5 46.Qe4?? Qe4 47.Ke4= Kh6 48.g4 Kg5 49.Kf3 f6 50.Ba3 Re5 51.Bb2 Rb5 52.Bc1 Kh4 53.h6 Rb8 54.Kf4 Rb4 55.Kf5 Rg4?? 56.h7+– Rg5 57.Bg5 fg5 58.h8Q Kg3 59.Kg5 Kf3 60.Qd4 Kg3 61.Qf4 Kh3 62.Qf3 Kh2 63.Kg4 Kg1 64.Qe2 Kh1 65.Kg3 Kg1 66.Qe1# 1–0. retiponziani – pieeater, ChessWorld.net, 2012.

6.Bd3 c6 7.a4 Bd7 8.0-0 h6 9.c4 a6 10.Nc3 ab5 11.ab5 Ra1 12.Qa1 Qc7 (12...Qe7 13.Rc1+=) 13.Na4+= cb5 (13...Be7 14.b6 Qd8 15.c5+=) 14.cb5 (14.Nc5!? Qc5 15.cb5+– (15.Bf6?! gf6 16.cb5 e5+=)) 14...Be7+= 15.Rc1 Qd8 16.Be5 Ne8 17.Bd4 Bf6 18.Nc5 Bd4 19.Qd4 Qb6 Attacks the isolani on b5 (19...Nd6 20.Qb4+=) 20.Nd7 (20.Ne5!? Bb5 21.Qb2+/–) 20...Nd7+= 21.Qb6 Nb6 22.Be2 Nf6 (better is 22...Nd6!?=) 23.Rc7+/– Rb8 24.d3 (better is 24.Ne5!?+/–) 24...Ne8= 25.Rc1 Kf8 26.Nd4 Ke7 27.e4 de4 (27...Ra8 28.e5+=) 28.de4= Kd6 29.f4 f6 30.Nf3 g5 31.fg5 hg5 32.Ne1 (32.g3!?+=) 32...Rc8 33.Rc8 Nc8 34.Bf3 (34.Nd3 Na7 35.Nf2 Kc5–/+) 34...Kc5 35.Bg4 (35.e5 fe5 (worse is 35...Kb5 36.Bh5 Ncd6 37.ed6 Nd6 38.Be2 Kc5 39.Kf2=) 36.Bb7 Ncd6+=) 35...Ng7 (worse is 35...Kb5 36.Be6 Ncd6 37.e5 fe5 38.Nf3+=) 36.Be2 Nd6 37.Bd3 (37.e5 fe5 38.Nf3 Nf7–/+) 37...Nb5 38.Nf3 Nd4 39.Nd2 b5 40.e5 (better is 40.Kf2–+) 40...f5 41.Kf2 Ne8 (41...Nc6 42.Ke3–+) 42.g3 (42.g4 Ng7–+ (42...fg4?! 43.Ne4 Kc6 44.Ng5–/+)) 42...Nc7 (42...Kd5 43.h4 gh4 44.gh4 Ke5 45.Nf3 Nf3 46.Kf3–+) 43.h4 gh4 44.gh4 Nc6 45.Nf3 Ne7 (better is 45...Kd5–+) 46.h5 Ng8 47.Kg3 Nd5 48.Kh4 Nf4 (48...b4 49.Kg5–/+) 49.Bf1 (49.Bc2 Kc4–/+) 49...b4–/+ 50.Kg5 Nh5 (50...Nd5 51.h6 Nh6 52.Kh6–/+) 51.Kh5 Ne7 52.Kg5 Nc6 (better is 52...Nd5!?–/+) 53.Kf6= Kd5?? Exerts pressure on the isolated pawn (53...b3=) 54.Ng5?? (54.Bg2 Kc4 55.Nd2 Kd3 56.Bc6+–) 54...Ne5+= 55.Bg2 Kc4 (better is 55...Kd6!? 56.Ne6 Ng4 57.Kf5 b3+=) 56.Ke5+= b3 57.Ne6 b2 58.Bd5 Kc3 59.Ba2 Kc2 60.Nd4 Kc1 61.Ne2 Kc2 ½–½. jlbaf (2455) – croach (2265), net–chess.com, 2016.

6.d4 Bb6 7.Bd3 c6 8.a4 =.

6.d4 Bb6 7.Bd3 Ne4 8.Nbd2+= Nd7 (8...Nd2 9.Qd2 a6 10.a4+=) 9.0-0 (9.Ne4!? de4 10.Be4 Ba5 11.c3+/–) 9...Ndf6+= 10.c4 c6 (better is 10...a6+=) 11.Ne4?? (better is 11.Ba3 Re8 12.bc6 bc6 13.cd5 cd5 14.Ne5+=) 11...de4–+ 12.Ne5 cb5 13.Be2=+ bc4 14.Bc4 Bc7 15.Ng4 Ng4–/+ 16.Qg4 Qd6 17.d5?? Qh2 0–1. gtate (1945) – bar (1945), net–chess.com, 2004.

6.d4 Bd6 7.Bd3 c5 (7...a6 8.a4=) 8.c4 cd4 9.ed4 Nbd7 (9...dc4!? 10.Bc4 Bd7=) 10.c5+= Bf4 (10...Bc7 11.0-0+=) 11.0-0+– Ng4 (11...Ne4!?+–) 12.g3+– Bh6 (12...Bc7 13.Nc3+–) 13.Qc2 White prepares c6 13...Ngf6 (13...Qc7 14.Bh7 Kh8 15.Bd3+–) 14.c6 Nb6 15.c7 Qe7 (15...Qe8 16.Ne5+–) 16.Ba3 Qe8 17.Ne5 Bd7 18.Bf8 (18.Nc3 Rc8 19.Bd6 Na8+–) 18...Kf8 (18...Qf8 19.a4 Rc8 20.a5+–) 19.a4 a5 (19...Rc8 20.a5 Nc4+–) 20.ba6 ba6 21.Qc5 Kg8 22.Qb6 Ba4 (22...Qc8 23.f4 g6+–) 23.Qb7 Ne4 24.Ra4 Qa4 25.Qa8 Qe8 26.Qe8 1–0. DEFFM – GuestWVCG, freechess.org, 2019.

6.d4 Be7 7.c4 a6 8.Nc3 b6 (8...h6 9.a4=) 9.Bd3 (9.a4 Bb7=) 9...dc4 10.Bc4 ab5 11.Bb5 Bb7 12.a4 Nc6 13.0-0 Bd6 14.Qe2 Nb4 15.e4 c6 16.Bc4 Nh5 (16...Bc7 17.Rfd1=) 17.e5 Be7 18.Qe4 (18.g3 Qc7=) 18...g6 (18...Qd7 19.a5 ba5 20.Qg4=) 19.Rfd1 Nd5 20.Nd2 Nhf4 21.Qf3 (21.Ne2 Ne2 22.Qe2 Qc8=) 21...Nc3 (21...f6 22.ef6 Bf6 23.Nde4=+) 22.Qc3 (22.Bc3 Nd5=) 22...Qd5 23.Bd5 (23.f3 Qa5=) 23...Ne2=+ 24.Kf1 (24.Kh1 Nc3 25.Bc3 cd5=+ (< 25...ed5 26.Rdb1=)) 24...Nc3–/+ 25.Bc3 cd5 26.Ke1 Rfc8 27.Rdc1 Bd8 28.Ra3 Rc6 29.Kd1 h5 30.h3 Be7 31.Raa1 Rac8 32.Bb2 Rc1 33.Bc1 Ba6 34.g3 Bb4 35.Rb1=+ Ba5 36.Bb2 Kg7 37.Rc1 Rc1 38.Bc1 Bc3 39.Nf3 Bd3 40.Be3 Kf8 41.Bd2 Ba1 42.Be3 Bf5=+ 43.Ng1 Ke7 44.Kd2 Kd7 45.f3 Bb1 46.Ne2= Ba2 47.Kc2 Bc4 48.Nf4 Kc6 49.h4 Kd7 50.g4 hg4 51.fg4+= Ke7 52.h5 gh5? 53.gh5+– Kf8 54.h6 Kg8 55.Nh5 b5 56.ab5?? Bb5= 57.Kb3 Bd3 58.Kb4 Bb2 59.Nf6 Kh8 60.Ne8 Kh7 61.Nd6 Bg6 62.Kb5 Ba3 63.Kc6 Bh5 64.Kd7+/– Bg6? 65.Ke7+– Kg8 66.Kf6 Kf8 1–0. Zylla,Johannes – Schmid,W, corr, 1993.

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 =+.

6.Be2 a6 7.a4 Bd7 8.0-0= c6 9.d4 (9.ba6 Na6 10.d3 Bd6=) 9...Bd6 10.Ba3 Ba3 11.Na3 cb5 12.ab5 ab5 13.Nb5 Ra1 14.Qa1 Nc6 (14...Ne4 15.Rb1=) 15.Qb2 Bc8 (15...Qb6 16.Rb1+=) 16.Ra1+/– Ne4 17.c4 dc4 18.Bc4 Nf6 (18...Qe7 19.Nc3 Nc3 20.Qc3+/–) 19.Na7 (19.Ne5 Qe7+/–) 19...Na7+= 20.Ra7 Qc7 (20...Qd6 21.h3+/–) 21.Bd3 (21.Qb4 Ne4+/–) 21...h6 (21...Qb8 22.Ra1+/–) 22.Ne5 Nd5 23.Be4 f6 24.Nd3 Qc4 25.Nc5 f5 26.Bd5 Qd5 27.Nd3 b5 28.Nf4 Qc6?? 29.Rg7!!+– (29...Kg7 30.d5 Kf7 31.dc6+–) 1–0. pierre – Tanuki, ChessHere.com, 2005.

6.Be2 b6 7.0-0 Bb7 8.a4 Bd6 9.a5 (9.Nc3 a5=) 9...c6 (9...ba5 10.Ra5 c6 11.bc6 Nc6 12.Ra4=) 10.a6 (10.ab6 a6 11.bc6 Nc6+=) 10...Bc8 11.Nc3 cb5 (11...h6 12.h3+=) 12.Nb5 Nc6 (better 12...Bc5!?+=) 13.Nd6+– Qd6 14.Ba3 Qd7 (14...Qd8 15.Bf8 Qf8 16.d4+–) 15.Bb5 (better 15.Bf8 Kf8 16.d4+–) 15...Rd8? (better 15...Qc7+–) 16.Nd4 Ba6 17.Bc6 Qc7 18.d3 Bb7 19.Ba4 a5 (19...e5 20.Nf5 Bc8 21.Qf3+–) 20.f4 e5 (20...h6 21.Qf3+–) 21.Nb5 Qb8 22.Be7 Re8 (22...ef4 23.Bd8 Qd8 24.Rf4 Bc6+–) 23.Bd6 Qd8 (23...Qc8 24.fe5 Ng4 25.Qf3+–) 24.fe5 Nd7 (24...Bc6 25.ef6 Re6 26.Be7+–) 25.Nc7 Re5 (25...Rc8 26.e6 Re6 27.Ne6 fe6 28.Qg4+–) 26.Qf3 f6 27.Qh3 Rg5 (27...Bc8 28.Na8 Nc5+–) 28.Ne6 Qc8 29.Ng5 fg5 30.Bd7 Qc2 31.Be8! Re8 (31...Re8 32.Qe6) 32.Qe6! Re6 (32...Re6 33.Rf8) 33.Rf8 1–0. Lavendel – Modiz, internet free game, 2018.

6.Be2 b6 7.0-0 Nbd7 8.d4 Bd6 9.c4 dc4 10.Nbd2 Bb7 11.Nc4 Be7 (11...a6 12.a4+=) 12.Qc2 c5 (12...a6 13.a4+=) 13.Rfd1+/– cd4 14.Bd4 Qc7 15.Rac1 Rac8 16.Qb2 Qb8 17.Nce5 Ne5 18.Ne5 Rc1 (18...Qa8 19.Nc6 Bc6 20.Rc6 (worse is 20.bc6 Rc6 21.Bf3 Rc1 22.Rc1 Qd8=) 20...Rc6 21.Bf3+/– (worse is 21.bc6 Qc6 22.Rc1 Qb7=)) 19.Rc1 Rc8 20.Nc6 Qd6 21.Na7 Rc1 22.Qc1 e5 23.Nc8 Qd5?? (better is 23...Bc8 24.Qc8 Bf8+–) 24.Ne7 (24.Ne7 Kh8 25.Nd5 Bd5 26.Be5+–) 1–0. pierred – anony, internet, 2014.

6.Be2 c6 7.a4 a6 8.ba6 ba6 9.c4 Qb6 (9...Nbd7!?=) 10.Bf6+= gf6 11.0-0 Qb2 (11...d4!?+=) 12.Nc3+/- Bb4? (12...Qb4 13.Rb1 Qa5 14.Qc2+/-) 13.cd5 (better 13.Ra2 Bc3 14.Rb2 Bb2 15.Qb3+-) 13...Bc3+/- 14.Rb1 Qa3 15.dc3 Qc3 (better 15...cd5!? 16.Qd4 f5+/-) 16.Rc1+- Qa5 17.dc6 Qc7 (17...Rd8 18.Bd3 Qc7 19.Qc2+-) 18.Nd4 (better 18.Qd4!? e5 19.Qh4+-) 18...e5 19.Nf3 Nc6 20.Qc2 Bb7 21.Bd3 Qe7 (21...h5 22.Bc4 Kg7 23.Nh4+-) 22.Bh7+- Kg7 23.Be4 Na5 (23...Nb4 24.Qb1 Rh8 25.Bb7 Qb7 26.Qf5+-) 24.Bb7 (24.Nh4 Qb4 25.Nf5 Kg8 26.Bb7 Qb7+-) 24...Nb7 25.Qf5 Nd6 (25...Qe6 26.Nh4 Nd6 27.Qf3+-) 26.Qg4 Kh8 27.Qh5 Kg7 28.Qg4 Kh8 29.Qh5 Kg8?? (29...Kg7 30.Rfd1 Rfc8 31.Qg4 Kf8 32.Qh4+-) 30.Qg4?? (30.Qh4 Rfc8+-) 30...Kh8 31.Qh5 Kg7 32.Qg4?? (32.Rfd1 Rfc8+-) 32...Kh8 33.Qh5?? (better 33.Qh4 Kg7 34.Rfd1+-) 33…Kg7= ½-½. Zerjio1992 - JohnRoberts (1635), Rated Classical game, lichess.org, 2013.

6.Be2 c6 7.a4 Bd7 8.0-0 cb5 9.ab5 Qb6 10.Bf6 gf6 11.Nc3 Bb5?? (better 11...Qc7+–) 12.Nb5 (12.Bb5 a6+–) 12...Nc6 13.d4 (13.c4 dc4 14.Bc4 Rfc8+–) 13…Bd6 1–0. DEFFM – GuestKGPL, freechess.org, 2019.

6.Be2 c6 7.a4 Nbd7 8.0-0 Qc7 9.d4 Bd6 10.c4 dc4 11.Bc4 cb5 12.Bb5 Ng4 13.g3 Ndf6 14.Nbd2 Bd7 15.Rc1 Qd8 16.e4 Bb5 17.ab5 Bb4 (17...Be7 18.h3 Nh6 19.Qb3=) 18.Qb3 (18.Qa4 Bd2 19.Nd2 a6=) 18...Qa5 (18...Bd2 19.Nd2 a6 20.f3+=) 19.Bc3 (19.Rfd1 Qb5 20.Bc3 a5=) 19...Bc3= 20.Rc3 Rfc8 21.Nc4 Qc7 22.Nfd2 Qd7 23.Rd3 Qc7 (23...Qd8 24.h3 Nh6 25.g4+=) 24.f3 Nh6 25.Qa3 a6 26.b6 Qd7 (26...Qd8 27.Rb1+=) 27.Ne5 (better 27.g4!?+–) 27...Qd8+= 28.Ndc4 Nd7 29.Rb1 (29.Qd6 Ne5 30.de5 Qd6 31.Nd6 Rc6+–) 29...f6 30.Nd7 Qd7 31.Rc1 Nf7 32.Kg2 Ng5 (32...a5 33.d5=) 33.h4 (33.Qa5 Rc6+=) 33...Nf7= 34.d5 ed5 35.Rd5 Qe6 36.Qb3 (36.Qa2 Rc6 37.Rcd1 h6=) 36...Rc6 37.Rc3 Re8 38.Rd4 Rec8 (38...f5 39.Rcd3=) 39.Na5+= Qb3 40.Rb3 (40.Nb3?? Rc3 41.Na5 Rc2 42.Kh3 Ne5–+) 40...Rd6 41.Rd6 Nd6 42.Rd3 Rd8 43.f4 Kf8 (43...Nf7 44.Ra3 Nd6 45.e5+=) 44.e5+– Nf7 45.Rc3 Rd2 46.Kf3 fe5 47.Nb7 Rb2 48.Nc5 ef4 (48...Ke7!? 49.b7 Nd8+–) 49.b7+– Ke7 50.gf4 (50.Kf4?! Rb4 51.Kf3 Kd6+=) 50...Nd8 (50...Nd6 51.Nb3 Nb7 52.Rc7 Kf6 53.Rb7+–) 51.Rd3 Ke8 52.Rd7 Rb7 (52...Nb7 53.Rb7 Rb7 54.Nb7+–) 53.Rb7 Nb7 54.Nb7 Ke7 55.f5 Kf6 56.Kf4 g6 57.fg6 Kg6 58.Kg4 Kh6 59.h5 Kg7 60.Kf5?? (better 60.Kg5+–) 60...Kh6= 61.Kg4 Kg7 62.Kg5 h6 (62...Kf7 63.Kh6 Kg8 64.Na5+–) 63.Kf5 Kf7 64.Na5 Kg7 65.Ke6 Kf8 (65...Kh8+–) 66.Kf6 Kg8 If Black now only could play Kg6... 67.Kg6 Kf8 68.Kh6 Kf7 69.Kg5 Kg7 70.h6 Kf7 71.Nc4 a5 72.Na5 Kg8 Plans Nc4 73.Kg6 Kh8 74.Nc6 (74.Nc4 Kg8 75.Nb6 Kh8 76.Nd7 Kg8 77.Ne5 Kf8 78.h7 Ke7 79.h8Q Ke6 80.Qf6 Kd5 81.Kf5 Kd4 82.Qc6 Ke3 83.Qc2 Kd4 84.Kf4 Kd5 85.Qc6 Kd4 86.Qc4) 74...Kg8+– 75.Nd8 Kf8 76.h7 (76.h7 Ke8 77.h8Q Kd7 78.Qd4 Kc7 79.Ne6 Kc6 80.Qc5 Kb7 81.Qb5 Kc8 82.Qc6 Kb8 83.Qb6 Kc8 84.Qc7) 1–0. GuestWZNR – GuestRPQF, freechess.org, 2019.

6.Be2 c6 7.a4 Nbd7 8.d4 Bd6 9.0-0 Re8 10.c4 e5 11.cd5 cd5 (11...Nd5 12.de5 Ne5 13.Be5 Be5 14.Ne5 Re5 15.Qd4=) 12.de5+= Ne5 13.Nbd2 b6 14.Rc1 Bb7 15.Ne5 Be5 16.Be5 Re5 17.Nf3 Re7 18.Nd4 Rc7 19.Rc7 Qc7 20.Qa1 Re8 21.Rc1 Qe7 22.Bf3 Ne4 23.Nf5 Qg5 24.Be4 de4 25.Nd6 Rd8?? (better 25...Rb8+/-) 26.Nb7+- Rb8 27.Rc7 h5 (27...Qd5 28.Qd4 Qb3 29.h3+-) 28.Qd4 h4 (28...Re8 29.h3 Qe5 30.Qe5 Re5 31.Nd6+-) 29.Qc4 (29.h3 Rf8+-) 29...Qg6 (29...Qf6 30.Qa2 Rf8 31.h3+-) 30.h3 Qf6 31.Qe4 Qa1 32.Kh2 Qf6 1-0. onur604 (2320) - Brunomezenga (2270), Casual Rapid game, lichess.org, 2021.

6.Be2 Bd7 7.a4 c6 8.0-0 cb5 9.ab5 Qb6 (9...a6 10.Be5+=) 10.Nc3 d4?? (better is 10...Bd6+=) 11.Na4+– (11.ed4?! Be7+/–; 11.Nd4?! Qc7+/–) 11...Qc7 12.Nc5 e5 (12...Qc5 13.Ba3 Qc8 14.Bf8 Qf8 15.Nd4 e5+–) 13.ed4 e4 14.Ne5 Be6 (14...Re8 15.Ra4+– (worse is 15.Ned7 Nbd7 16.d3 Nc5 17.dc5 Qc5+–)) 15.Ne6 fe6 16.Bc4 Re8 17.Qe2 Nbd7 18.Ra3 Ne5 (18...Nb6 19.Bb3+–) 19.de5 Nd5 (19...Nd7 20.Qe4 Kh8 21.Bd3+–) 20.Qe4 Rad8 (20...Qf7 21.Rfa1+–) 21.Ra7 Rf8 22.g3 (22.Bd3 g6+–) 22...Rf5 (22...Rf7 23.Bd3 g6 24.Qg4+–) 23.Bd3 Rdf8 (23...Rh5 24.c4 Qb8 25.Rfa1+–) 24.g4 Rf4 25.Qh7 Kf7 26.Bg6 Ke7 27.Ba3 Nb4 28.Bb4 Rb4 29.Qg7 1–0. Janek – zaquz, internet, 2017.

6.Be2 Ne4 7.0-0 Be7 (7...a6 8.d3 Nf6 9.c4=) 8.c4 Bf6 (8...a6 9.Qc2+=) 9.d4 (9.Nc3 a6+=) 9...dc4 10.Bc4 Nd7 (10...a6!? 11.Bd3 Nd6+–) 11.Qc2+– Nb6 (11...Nd6 12.Bd3+–) 12.Bd3+– Ng5 (12...Nd6 13.Bh7 Kh8 14.Bd3+–) 13.Ng5 (13.Nfd2 Nd5 14.a3 e5 15.de5 Be7+–) 13...Bg5 14.Bh7 Kh8 15.Bd3 Nd5 16.a4 (16.Qd1 Kg8+–) 16...Bd7 (16...Nb4 17.Qb3 Nd3 18.Qd3+–) 17.Qb3+– Be7 18.Nd2 Nb4 (18...a5 19.Nc4+–) 19.Be4 Rb8 20.Bc3 Nd5 21.Bd5 ed5 22.Qd5 Be6 (22...c6 23.Qh5 Kg8 24.Rfc1+–) 23.Qe4 (23.Qh5 Kg8+–) 23...Bd5 (23...c6 24.Qd3+–) 24.Qc2 Bd6 (better 24...f5+–) 25.e4 Be6 (25...Qh4 26.f4 Bf4 27.Rf4 (27.ed5?? Bh2 28.Kh1 Bg3 29.Kg1 Qh2) 27...Qf4 28.ed5 Qe3 29.Kh1+–) 26.d5 Bg4 27.Qb2 (27.e5 Be7 28.Qe4 Bh5+–) 27...Rg8 (27...Qg5 28.f3 Bh3 29.Nc4+–) 28.Bd4 Ra8 29.Nc4 White plans b6 29...Be7 (29...Qg5 30.f3 Bd7 31.f4+–) 30.a5 White prepares b6 (30.Qc3 Bd6+–) 30...Bf6 31.b6 cb6 (31...ab6 32.ab6 Ra1 33.Ra1 Bd4 34.Qd4 cb6 35.Nb6+–) 32.f3 (32.ab6 Bd4 33.Qd4 ab6 34.Ra8 Qa8+–) 32...Bc8 (32...Bd4 33.Qd4 Bd7 34.ab6+–) 33.ab6 a6 34.Ra5 Bd4 35.Qd4 Re8 (35...Rf8 36.Rc5 Bd7 37.d6+–) 36.Rc5 Be6 (36...Kg8 37.Rc7 Qf6 38.e5+–) 37.Rc7 Rb8 (37...Kg8 38.Rb7 Bc8 39.Rc7+–) 38.Rd1 Bd7 (38...Bc8 39.d6 Bd7 40.Na5+–) 39.Nd6 Re7 (39...Kg8 40.Nb7 Qc7 41.bc7 Rb7 42.Qc3+–) 40.Nb7 Qe8 (40...Rb7 41.Rb7 Kh7 42.d6+–) 41.d6 Re6 (41...Re5 42.Nc5 Rc5 43.Qc5+–) 42.Nc5 Rg6 43.Nd7 Rc8 44.Ne5 Re6 45.d7 Rc7 (45...Kg8 46.Rc8 Qd8 47.Rd8 Kh7 48.b7 g5 49.Rh8 Kh8 50.Nf7 Kg8 51.d8Q Kh7 52.Q8h8 Kg6 53.Qdg7) 46.de8Q Re8 47.bc7 (47.bc7 Kg8 48.Qd8 Kh7 49.Qe8 a5 50.Qf7 a4 51.c8Q a3 52.Qh3) 1–0. GuestVVGT – GuestLGRB, freechess.org, 2020.

6.Be2 Re8 7.0-0 a6 8.a4=.

6.Be2 Re8 7.0-0 Nbd7 8.d4 Ne4?? (better 8...Bd6=) 9.dc5+– Ndc5 10.Nc3 Nc3 (10...f6 11.Ne4 Ne4 12.c4+–) 11.Bc3 Ne4 12.Bb2 Bd7 (12...a6 13.ba6 ba6 14.Rb1+–) 13.a4 Re7 (13...a6 14.Qd3+–) 14.c4 c6 15.Bd3 Nc5 (15...cb5 16.ab5 Be8 17.cd5 Qd5 18.Qc2+–) 16.Bh7! Kh7 17.Ng5 (better 17.Qd4 e5 18.Qc5+–) 17...Kg8?? (better 17...Kg6 18.Qd4 f5 19.Qc5 Kg5+–) 18.Qh5 (18.Qh5 cb5 19.Qh7 Kf8 20.Qh8) 1–0. DEFFM – GuestTNzull, freechess.org, 2018.

6.Be2 Re8 7.0-0 e5 8.Ne5+= Bd6 (8...a6 9.d4 Bd6 10.ba6 Na6 11.c4+–) 9.f4+– Ne4 (9...a6!?+–) 10.c4+– f6 11.Nf3 Bc5 (11...Nd7 12.d3 Nec5 13.d4+–) 12.cd5 Qd5 13.Qc2 Qf5?? (13...Kh8 14.Nd4 Bd4 15.Bd4 c5+–) 14.Bd3 Bb6 (14...Qf4 15.Rf2 Qg4+–) 15.Nc3 Qg6 (15...Qc5 16.Be4 Qh5 17.a4+–) 16.Ne4 f5 (16...Qh5+–) 17.Nh4 Qh5 18.Bc4 Kh8 19.Bg7! Kg7 20.Qc3 Kh6 21.Qf6 (21.Qf6 Qg6 22.Ng6 Re6 23.Qf8 Kh5 24.Be2 Kg6 25.Qg8 Kh6 26.Qg5) 1–0. Ddgs – Seer, internet, 2019.

7.0-0 a6 =.

7.a4 a6 8.0-0 =.

7.a4 b6 8.d4 Bd6 9.0-0 Ne4 (9...c5 10.bc6 Nb8 11.Ne5=) 10.Nbd2 Ndf6 (10...a6 11.Bd3 f5 12.c4=) 11.c4 Bb4 (11...a6 12.Ne5=) 12.Ba3 (12.Ne4 Ne4 13.Qc2 a6+=) 12...Ba3 13.Ra3 Qd6 14.Ra1 Nd2 15.Qd2 Ne4 (15...Bb7 16.Ne5+=) 16.Qc1 (16.Qc2 c5+/–) 16...dc4 (16...c5 17.a5+=) 17.Qc4 Bb7 18.Rfd1 (18.Bd3 Rac8+=) 18...Bd5 19.Qc2 Rfc8 (19...c5 20.Rac1+=) 20.Ne5 Qb4 21.Nc6 Qc3 22.Rdc1+– Bc6 23.bc6 Qd2 24.Qe4 Qe2 25.Rc2 Qh5 26.Rd2 Rd8 27.Rad1 Qd5 28.Qd5+= ed5 29.f3 Rd6 30.Kf2 f5 31.Rc2 Re8 32.a5 Ree6 33.ab6 ab6 34.Ra1 Rc6–/+ 35.Ra8 Kf7 36.Rc6 Rc6 37.Ra2 Kf6 38.Rb2 Re6 39.Rb5 Rd6 40.Ke2 Ke6 41.g3 g5 42.h3 h5 43.Kd3 Kf6 44.e4 fe4 45.fe4 de4 46.Ke4 Re6 47.Kd3 Re1 48.h4 gh4 49.gh4 Kg6 50.Rg5 Kh6 51.Re5?? Re5–+ 52.de5 Kg7 53.Ke4 Kf7 (54.Ke3 Ke6–+) 0–1. tanto – dwhitlow (1670), net–chess.com, 2001.

7.a4 Qe7 8.0-0 e5 9.d4 ed4 10.ed4 Bd6 11.c4 dc4 12.Bc4 Nb6 13.Re1 Qd8 14.Bb3 Bg4 15.h3 Bh5 16.Nbd2 Bb4 17.g4 Bg6 18.Ne5 Nfd5 (18...Nbd5!?=) 19.a5+= Nc8 20.a6 ba6 21.Nc6 Qh4?? (better 21...Qd7 22.Bd5 Bd2 23.Qd2 Qd5+/-) 22.Bd5+- Bd6 23.Bg2 (23.Ra6 Qh3 24.Nf1 Qh4+-) 23...ab5 24.Nf3 Qf6 25.Qb3 (25.Nfe5 Re8+-) 25...Nb6 (25...a6 26.Nce5 Nb6 27.Ng6 hg6 28.Bc1+-) 26.d5 (26.Qb5!? Rfe8+-) 26...Qf4 27.Ncd4 Rfe8 28.Re8 Re8 29.Nb5 (29.Ra7?! b4+-) 29...Bc5? (29...Be4+-) 30.Qc3 (30.Na7?! Re2 31.Nc6 f6+-; 30.Ra7 Re1!? 31.Ne1 Qf2 32.Kh2 Qg1 33.Kg3 Qe1 34.Kh2 Bg1 35.Kh1 Be3 36.Bf1 Qf1 37.Kh2 Qg1) 30...Bf8 31.Nc7 (31.Qc7?! Qb4 32.Bd4 Qb5+/-) 31...Rc8 (31...Re2 32.Ra7 Qe4 33.Ba3+-) 32.Ra7 Be4 33.Qd4 Nd7 (33...Rc7 34.Rc7 (34.Qb6?! Ra7 35.Qa7 Bf3+-) 34...Qc7 35.Qe4+-) 34.Nd2 f5 (34...Rc7 35.Be4 Qd6+-) 35.Ne6 Qh6 (35...Qe5 36.Be4 Qd4 37.Bd4+- (37.Rd7? Qb2 38.Bf5 Qd2-+)) 36.Nf8 Nf8 37.Rg7 Qg7 (37...Kh8 38.Rg6 Qg7 39.Qg7) 38.Qg7 1-0. onur604 (2320) - ELSOUEFI (2180), Casual Rapid game, lichess.org, 2021.

7.d3 Nb6 8.a4 a6 9.Nbd2 (9.0-0 Bd6=) 9...ab5 10.ab5 Na4 11.Qb1 Bd7 12.Be5 Ng4 13.Qb3 Ne5 14.Ne5 Nb6 15.Ra8 (15.0-0 Qf6 16.d4 Bd6=) 15...Qa8 16.0-0 Qd8 (16...Qa5 17.Nd7 Nd7 18.Nf3=) 17.d4+= Bd6 18.c4 Be5 19.de5 Qe7 20.Rc1 Qc5 21.Qb2 dc4 22.Nc4 Qb5 23.Qb5 Bb5 24.Nb6 Be2 25.Rc7 Rd8 (25...Ba6 26.h3+=) 26.h3 Ba6 27.Kh2 h6 (27...h5 28.Kg3+=) 28.Kg3 Rd1 (28...Rd2 29.Nc8+=) 29.Nd7+/– Kh7 (29...h5 30.Nc5+/–) 30.Nf8 Kg8 31.Rc8 b5 (31...f6 32.ef6 gf6 33.Ne6 Kf7 34.Nc5+–) 32.Ra8+– Bb7 33.Rb8 Be4 (33...Bd5 34.h4 g6 35.Ne6 Kh7 36.Nd4+–) 34.Ne6 Kh7 35.Nf8 Kg8 36.h4 Rg1? (36...Rd5 37.h5 g6 38.e6+–) 37.Nd7 Kh7 38.f3 Bd3 39.h5 f5 40.e6 f4 41.Kf4 g5 42.Ke5 Re1 43.Nf6 Kg7 44.Rg8# 1–0. bambinik (2455) – GMHowe (2260), internet, 2003.

7.d3 c6 8.a4 =.

7.d4 Bb6 8.0-0+= c6 (8...c5 9.c4+=) 9.a4 (9.c4 Ba5+=) 9...Qc7 (9...c5 10.Nbd2+=) 10.c4 dc4 11.Bc4 Nd5 (11...c5 12.Nbd2+–) 12.Nbd2 f5 13.Rc1 N7f6 (13...Rf6 14.g3+–) 14.Qb3 (14.Ba3 Rd8+–) 14...Bd7 15.Ne5 Ba5 (15...Ba5 16.Ndf3 Ne4+–). GuestGSTS – GuestXSGL, freechess.org, 2019.

6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.c4 Qa5 (9...0-0 10.Qc2 Nbd7 11.d4=) 10.Nc3 (10.Bc3 Bb4=) 10...0-0 (10...Bd6 11.Be2=) 11.Be2 (11.Qa4 Qd8=) 11...Re8 (11...dc4 12.Bc4 Bd7 13.Qa4 Qa4 14.Na4 Be3 15.b6=+) 12.0-0 (12.Qa4 Qc7 13.d4+=) 12...e5 (12...Bd7 13.d3=) 13.cd5 (13.Ne5 Qc7 14.d4 Bd6+–) 13...cd5 (13...e4 14.Qa4 Qb6 15.dc6 ef3 16.Bf3 bc6 17.bc6=) 14.Na4 (better 14.Ne5!? Qd8 15.Nd3+–) 14...Bd6= 15.Bc3 Qa8 (15...Qd8 16.Qc2=+) 16.Qa1 (16.Nb6 Qa2 17.Nc8 Rc8 18.Be5 Be5 19.Ne5 Ne4+–) 16...Qa7 (better 16...Nbd7=) 17.Be5 Be5 18.Ne5 Bd7 (18...Nbd7 19.Nf3+–) 19.Nd7 (19.d4 Ne4+–) 19...Nbd7+– 20.d4?? (better 20.Nc3 Qb6 21.d4+–) 20...Ra8=+ 21.Bd1? (better 21.Rc1 Qa5 22.g3=+) 21...Nb6–+ 22.Qc3 (22.Bc2 Na4 23.Rc1 Nb6 24.Qa7 Ra7–+) 22...Na4 23.Qc7 (23.Ba4 Qa4 24.Qc5 Qc4–+) 23…Qb6 (23...Qb6 24.Qb6 Nb6–+) 0–1. GuestVGMK – GuestJQKP, freechess.org, 2017.

6.ba6 Na6 7.Be2 =.

6.Ne5 =.

6.a4 0-0 7.c4 dc4 8.Bc4 a6 9.0-0 ab5 10.ab5 Ra1 11.Ba1 Bd7 12.Nc3 Bb4 13.Qb3 Bc3 (13...cb5 14.Nb5 Nc6 15.Rc1+=) 14.Bc3+– (worse 14.dc3 cb5 15.Bb5 Bb5 16.Qb5 Qc7=; worse 14.Qc3 cb5 15.Be2 Bc6=) 14...cb5 15.Bb5 Bb5 16.Qb5 Nd5 17.Qb7 Nc3 18.dc3 Qd3 19.Qd7?? (better 19.Qc7+–) 19…Nd7–+. GuestGZTN – GuestZYZF, freechess.org, 2019.

6.a4 0-0 7.d4 Bb4 8.c3 Ba5 9.Bd3 Bd7 10.0-0 b6 (10...a6 11.ba6 Na6 12.Ba3=) 11.c4 (11.Ba3 Re8+=) 11...c5 (better is 11...dc4!? 12.Bc4 a6=) 12.Qc2 a6 (better is 12...cd4 13.Bd4 dc4+/–) 13.Nc3 (13.dc5 dc4 14.Qc4 bc5 15.Qc5 ab5 16.ab5 Nd5+–) 13...Bc8 (better is 13...cd4!? 14.Nd4 e5+=) 14.cd5 ed5 15.dc5 bc5 16.Ng5 (16.Ne2 Bb4+/–) 16...g6+= 17.Ne2 (better is 17.Rfc1+=) 17...c4=+ 18.Bg6? (better is 18.Bc4!? dc4 19.Qc4 ab5 20.ab5=+) 18...hg6 19.Nf4 Bf5 20.Qe2 Ne4 21.h4? f6?? 22.Nge6=+ Qe8 23.Nf8= Qf8 24.Nd5+/– Nc3?? 25.Qc4 Be6 26.e4 Nd7?? 27.Bc3 Rc8 28.Qd4 Bc3 29.Qd3 Ba1= 30.Ra1 Bd5 31.Qd5+/– Qf7 32.ba6 Qd5 33.ed5 Ra8 34.a5 Ra6 35.f4 Kg7 36.Kf2 Kh6 37.g4 f5 38.Kg3?? Nc5 39.Rc1?? Ra5 40.d6? Nd3?? 41.Rc7 Rd5 (42.g5 Kh5 43.Rh7) 1–0. gtate (1810) – mlaurent (1715), net–chess.com, 2002.

6.a4 0-0 7.Be2 =.

6.a4 cb5 7.ab5 0-0 8.d4 Bb6 (8...Bb4 9.c3 Ba5 10.Bd3=) 9.Nbd2 (9.Bd3 a6+=) 9...a6 (9...Ba5 10.Bd3+=) 10.Bd3 h6 (10...Ba5 11.0-0+=) 11.0-0 Nh7 (11...Ba5 12.ba6 b6 13.Ba3+=) 12.c4+– dc4 (12...Nf6 13.c5 Ba5 14.Nb3 ab5 15.Bc3+–) 13.Nc4+– Bc7 14.Nce5 (14.b6 Bb6 15.Ba3 Bc7+–) 14...f6 (14...Ng5!?+–) 15.Qc2+– f5 16.Ba3 Bd6 (16...Re8 17.Rfc1 Be5 18.Ne5+–) 17.Bd6 (17.Bf5 Nf6 18.Bd3 Ba3 19.Ra3 Qd6+–) 17...Qd6 18.Ng6 Rf6?? (better 18...Rd8+–) 19.Qc8 Rf8 (19...Nf8 20.Qb7 Ng6 21.Qa8 ab5 22.Qb7+–) 20.Nf8 Qf8 (20...Nf8 21.Qb7 Qd5 22.ba6 g6+–) 21.Qb7 1–0. GuestQWWS – GuestCDXQ, freechess.org, 2018.

6.a4 Nbd7 7.c4 (7.Nc3 0-0=) 7...Qa5 (7...0-0 8.Be2=) 8.Nc3 0-0 9.Be2 dc4 (9...e5 10.bc6 bc6 11.cd5 cd5 12.0-0+=) 10.Bc4+= Nb6 (10...Qb4 11.Be2+=) 11.Be2 (11.Bd3 Bd6+–) 11...Nfd5 (11...Bd7 12.Ne5+=) 12.0-0 cb5 (better 12...Bd7!?+=) 13.ab5+– Qb4 14.Qc2 Be7 15.Ba3 Qg4 16.Ne5 (16.h3 Qg6 17.Bd3 f5+–) 16...Qh4 (16...Qf5 17.Qf5 ef5 18.Be7 Ne7 19.Ra5+–) 17.g3+– Qf6 18.f4 (18.d4 Ba3 19.Ra3 Qe7+–) 18...Ba3 19.Ra3 Qe7 20.Rfa1 Nc3 (20...f6 21.Nc4+–) 21.dc3 (21.Qc3!? Nd5 22.Qb3+–) 21...f6 22.Nf3 Nd5 (22...Qc5 23.Qe4+– (worse 23.Ra7 Ra7 24.Ra7 Qe3 25.Kg2 Nd5=+)) 23.Kf2 (23.c4 Qc5 24.Qe4 Nb4+–) 23...b6 (23...Qc5 24.c4 e5 25.Qe4+=) 24.c4 Qc5 (24...Nb4 25.Qb2 a5 26.ba6 Ra6 27.Ra6 Na6 28.Qb6+–) 25.Qb3 (25.Bd3 Nb4 (25...Qe3?? 26.Kg2 Nf4 27.gf4 Qf4 28.Bh7 Kh8 29.Be4+–) 26.Bh7 Kh8+–) 25...Ne7+– 26.Ra7 Ra7 27.Ra7 Nf5 28.g4 (28.Qd3!? Nd6+–) 28...Nd6+– 29.Nd4 (better 29.Qa3!?+–) 29...e5= 30.Ne6?? (better 30.Nc6 ef4 31.Ne7 Kh8 32.Nd5=) 30...Be6–+ 31.Re7 (31.Qa3 Qa3 32.Ra3 Bc4 33.Bc4 Nc4 34.Rd3–+) 31…Bc4 (31...Bc4 32.Bc4 Nc4–+ (worse 32...Qc4 33.Qc4 Nc4 34.Rc7–+)) 0–1. GuestQQPV – GuestWDZM, freechess.org, 2019.

7.c4 0-0 8.Qc2 A) 8...Bb4 9.Bd3 a6 10.0-0 ab5 11.cb5 Qe7 12.Ne5 Be8 13.Nc3 Nbd7 14.f4; B) 8...Bd6 9.Bd3 (9.c5 Be7 10.d4 a6 11.b6 a5 12.Nc3 g6 13.Be2 Na6 14.0-0; 9.Nc3 a6 10.c5 Bc5 11.Nd5 ed5 12.Qc5 ab5 13.ab5 Ra1 14.Ba1) 9...a6 10.c5 Be7 11.Na3 ab5 12.ab5 cb5 13.0-0 Nc6 14.Ng5; C) 8...Qe7 9.Nc3 (9.Bd3 a6 10.Nc3 ab5 11.ab5 Ra1 12.Ba1 Rc8 13.0-0 dc4 14.Bc4) 9...e5 10.Be2 e4 11.Nd4 dc4 12.Bc4 Rc8 13.Qb3 Bd4 14.ed4.

7.c4 0-0 8.Nc3 A) 8...Qc7 9.Qb3 (9.Be2 e5 10.bc6 bc6 11.d4 ed4 12.ed4 Bb4 13.0-0 Bf5 14.cd5; 9.Bd3 cb5 10.cd5 b4 11.Nb5 Bb5 12.ab5 Nbd7 13.de6 fe6 14.Ng5) 9...Rc8 10.Be2 Bd6 11.0-0 dc4 12.Qc4 cb5 13.Qc7 Rc7 14.ab5; B) 8...a6 9.cd5 (9.Bd3 dc4 10.Bc4 ab5 11.ab5 Ra5 12.Ra5 Qa5 13.Qb3 cb5 14.Nb5; 9.Be2 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Nb5 Bc6 14.Be2; 9.d4 Bb4 10.Qb3 Qe7 11.c5 Bc3 12.Bc3 ab5 13.Bd3 Ne4 14.Bb2) 9...ed5 10.Be2 Bg4 11.h3 Bf5 12.0-0 Nbd7 13.d4 Bd6 14.Nh4.

7.c4 0-0 8.Bd3 A) 8...dc4 9.Bc4 a6 10.Nc3 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Nb5 Bc6 14.0-0; B) 8...a6 9.Nc3 (9.cd5 ed5 10.Nc3 Bg4 11.h3 Bf3 12.Qf3 Nbd7 13.Qf4 Nh5 14.Qf3) 9...dc4 10.Bc4 ab5 11.ab5 Ra5 12.Ra5 Qa5 13.Qa4 Qa4 14.Na4; C) 8...Qe7 9.0-0 Bd6 10.Bf6 Qf6 11.Nc3 Rc8 12.Rc1 Ba3 13.Rc2 cb5 14.cd5; D) 8...cb5 9.ab5 (9.cb5 Be8 10.Nc3 Nbd7 11.0-0 Rc8 12.Be2 Qa5 13.Qb1 Bd6 14.Rc1) 9...dc4 10.Bc4 Qc7 11.Bd3 a5 12.Nc3 Be8 13.0-0 Nbd7 14.Na4; E) 8...Be8 9.Nc3 (9.0-0 Nbd7 10.Qc2 Bd6 11.bc6 bc6 12.Nc3 Nc5 13.Ba3 Nd3 14.Bd6) 9...Nbd7 10.bc6 bc6 11.cd5 cd5 12.0-0 e5 13.Be2 e4 14.Nd4.

7.c4 0-0 8.Be2 dc4 (8...a6 9.Nc3 (9.Qc2 Qe7 10.Nc3 ab5 11.cb5 cb5 12.ab5 Ra1 13.Ba1 e5 14.d4; 9.cd5 ab5 10.Qc2 Qe7 11.de6 fe6 12.ab5 Ra1 13.Ba1 cb5 14.Bf6) 9...dc4 10.Bc4 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Nb5 Qb6 14.Qa4; 8...Qc8 9.0-0 (9.Nc3 dc4 10.Ne5 a6 11.b6 a5 12.Nc4 Na6 13.d4 Be7 14.0-0; 9.Bf6 gf6 10.cd5 ed5 11.Nc3 Be6 12.0-0 Nd7 13.Nd4 Rb8 14.Bg4; 9.cd5 ed5 10.Bf6 gf6 11.Nc3 Bf5 12.0-0 Nd7 13.bc6 bc6 14.Nh4; 9.Na3 Be8 10.Bf6 gf6 11.0-0 Nd7 12.d4 Bd6 13.bc6 bc6 14.cd5) 9...dc4 10.Na3 Ne4 11.Nc4 cb5 12.ab5 Bb5 13.Qc2 Nf6 14.Bf6) 9.Bc4 (9.Nc3 a6 10.Bc4 ab5 11.ab5 Ra5 12.Ra5 Qa5 13.Qa4 Qa4 14.Na4) 9...a6 10.Nc3 ab5 11.ab5 Ra1 (11...Ra5 12.Ra5 Qa5 13.Qb3 cb5 14.Nb5) 12.Qa1 cb5 13.Nb5 Bc6 (13...Qb6 14.Qa4) 14.Be2 Qd5 (14...Be7 15.Bf6 Bf6 16.d4=) 15.Nc3 (15.Bf6!? gf6 16.Qf6 Bb5 17.Bb5 Be3 18.fe3 Qb5 19.Rf1+=) 15...Qf5= 16.0-0 Nbd7 17.d4 Bd6 18.h3 Nb6 19.Qd1 Nbd5 20.Qb3 Nc3 21.Bc3 Bd5 22.Qb5 (22.Qb6 Qc2 23.Bd1 Qc3 24.Qd6 Bc4=) 22...Rc8 23.Qb6 Ne4 24.Bd3 Rc3 25.Be4 Be4 26.Qd6 h6 (26...Rc8 27.Qd7 Rf8 28.Nd2+=) 27.Qd8 Kh7 28.Ne5 g6?? (better is 28...Bd5=) 29.g4+– Qg5 30.Nf7 (better is 30.Qg5!? hg5 31.Nf7+–) 30...Qd8+/– 31.Nd8 b5? (better is 31...Bd5!?+/–) 32.Ne6+– b4 33.Nc5 b3?? (better is 33...Bc2+–) 34.Ne4 Rc2 35.Nc5 b2 36.Nd3 (better is 36.Na4 Kg8+–) 36...Rd2 37.Nb4 Kg7 38.Rb1 Kf6 39.Kf1 h5 40.Ke1 hg4 41.hg4 1–0. Tolmacheva,Eva (1915) – Yanygina,Olga, Barnaul RUS, SFO Ch (w), 2011.

7.c4 a6 8.Qc2 A) 8...b6 9.cd5 (9.Nc3 0-0 10.cd5 ed5 11.Bd3 ab5 12.ab5 Ra1 13.Ba1 cb5 14.Qb2) 9...cd5 10.Nc3 0-0 11.Bd3 Qc7 12.0-0 e5 13.e4 d4 14.Nd5; B) 8...Bb4 9.Bd3 (9.Nc3 ab5 10.ab5 Ra1 11.Ba1 0-0 12.cd5 cd5 13.Bd3 Qa5 14.0-0; 9.Qb3 Bd6 10.Nc3 ab5 11.ab5 Ra1 12.Ba1 0-0 13.Bd3 Be8 14.bc6; 9.cd5 ed5 10.Bd3 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Nc3 0-0 14.0-0) 9...ab5 10.cb5 0-0 11.0-0 c5 12.Re1 b6 13.Ne5 Bc8 14.Nc3; C) 8...Bd6 9.Na3 (9.c5 Be7 10.Na3 0-0 11.Bd3 ab5 12.ab5 cb5 13.0-0 Nc6 14.Ng5) 9...Qe7 10.Ne5 0-0 11.Bd3 ab5 12.cb5 Rc8 13.Qb3 cb5 14.Nb5; D) 8...dc4 9.Qc4 (9.b6 Qb6 10.Bc4 a5 11.Bf6 gf6 12.Nc3 Na6 13.Ne4 Be7 14.Qc3; 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Qb6 12.Bf6 gf6 13.bc6 Nc6 14.Nc3) 9...Qb6 10.Nc3 0-0 11.Bd3 ab5 12.ab5 Ra1 13.Ba1 cb5 14.Qh4; E) 8...Qe7 9.Nc3 (9.cd5 cd5 10.Bd3 0-0 11.0-0 Rc8 12.Rc1 ab5 13.ab5 Ra1 14.Ba1) 9...ab5 10.ab5 Ra1 11.Ba1 0-0 12.Ng5 g6 13.Na4 Ba3 14.Qc3.

7.c4 a6 8.Nc3 0-0 9.cd5 (9.Bd3 dc4 10.Bc4 ab5 11.ab5 Ra5 12.Ra5 Qa5 13.Ne5 Bd6 14.f4; 9.Be2 dc4 10.Bc4 ab5 11.ab5 Ra5 12.Ra5 Qa5 13.Qa4 Qa4 14.Na4; 9.h3 h6 10.Bd3 dc4 11.Bc4 ab5 12.ab5 Ra5 13.Qe2 Ra1 14.Ba1) 9...ed5 10.Be2 Bf5 11.0-0 Nbd7 12.Nh4 Be6 13.Qc2 g6 14.d4.

7.c4 a6 8.cd5 A) 8...ab5 9.Qc2 (9.dc6 bc6 10.Qc2 Bd6 11.ab5 Ra1 12.Ba1 cb5 13.Nc3 Qc7 14.Nd4; 9.de6 Be6 10.ab5 Ra1 11.Ba1 0-0 12.Nc3 Nbd7 13.Be2 Qc7 14.Qc2) 9...Be7 10.de6 fe6 11.ab5 Ra1 12.Ba1 cb5 13.Bd3 Qa5 14.Bb2; B) 8...cd5 9.Nc3 (9.Bd3 0-0 10.Nc3 Bd6 11.0-0 e5 12.e4 d4 13.Nd5 ab5 14.ab5) 9...0-0 10.Bd3 Qe7 11.0-0 e5 12.e4 d4 13.Nd5 Nd5 14.ed5; C) 8...ed5 9.Nc3 (9.Bd3 0-0 10.Nc3 Bg4 11.h3 Bf3 12.Qf3 Nbd7 13.Qg3 Nh5 14.Qf3) 9...0-0 10.Be2 Bf5 11.0-0 Nbd7 12.d4 Bd6 13.bc6 bc6 14.Ba3.

7.Bd3 a6 8.0-0 =.

7.Bd3 Bd6 8.Ne5 (8.0-0 a6=) 8...Qc7 (8...a6 9.0-0=) 9.f4 c5 (9...0-0 10.0-0=) 10.c4 (10.Ng4 Qd8+=) 10...Ne4 (better is 10...0-0!?=) 11.Qg4+/– g6?? (better is 11...Rg8+/–) 12.Nd7+– Nd7 13.Bh8 h5 14.Qe2 f6 15.cd5 ed5 16.Nc3 Nc3 17.Bg6 Kd8 18.dc3 Ke7 19.Qh5 Rf8 20.Bg7 Qd8 21.Qd5 b6 22.0-0-0 Nb8 23.Bf8 (23...Kd7 24.Qb7 Ke6 25.Qf7) 1–0. pcmvr (2225) – dennism (2195), net–chess.com, 2006.

7.Be2 a6 =.

8.Nc3 A) 8...Qc7 9.Qb3 (9.bc6 bc6 10.d4 Qa5 11.c5 Bc7 12.Be2 Na6 13.0-0 0-0 14.Nb5; 9.cd5 ed5 10.Bd3 0-0 11.Rc1 c5 12.Ne2 Qd8 13.0-0 a6 14.Nc3) 9...0-0 10.Bd3 Rc8 11.0-0 dc4 12.Qc4 cb5 13.Qc7 Rc7 14.ab5; B) 8...0-0 9.Be2 (9.Qb3 a6 10.Bd3 ab5 11.ab5 Ra1 12.Ba1 Be8 13.bc6 bc6 14.Bb2; 9.h3 e5 10.d4 e4 11.Ne5 Be6 12.Qd2 Qc7 13.bc6 bc6 14.cd5; 9.h4 Qa5 10.Bd3 e5 11.c5 Bc5 12.Ne5 Re8 13.bc6 bc6 14.Ne2; 9.Qc2 a6 10.c5 Bc5 11.Nd5 ed5 12.Qc5 Bg4 13.Ne5 ab5 14.Qb4) 9...Be8 10.d4 dc4 11.Bc4 Nbd7 12.bc6 bc6 13.0-0 Rb8 14.Qe2.

8.Bd3 A) 8...dc4 9.Bc4 a6 10.Nc3 Qc7 11.Bd3 0-0 12.0-0 e5 13.h3 h6 14.Qe2; B) 8...0-0 9.cd5 (9.0-0 Be8 10.Na3 Nbd7 11.Qc2 Rb8 12.a5 g6 13.Be2 Rc8 14.bc6; 9.Qc2 Qe7 10.cd5 cd5 11.Nc3 e5 12.Rc1 g6 13.Be2 Be6 14.0-0) 9...cd5 10.0-0 Be8 11.Ba3 e5 12.Be2 Ba3 13.Na3 e4 14.Nd4; C) 8...Bc8 9.0-0 (9.Qc2 Nbd7 10.bc6 bc6 11.cd5 cd5 12.Ba3 Ba3 13.Na3 e5 14.Be2) 9...Nbd7 10.Ba3 dc4 11.Bc4 Nb6 12.Be2 0-0 13.Qc2 Ba3 14.Ra3.

8.Be2 A) 8...a6 9.cd5 (9.Nc3 0-0 10.0-0 ab5 11.ab5 Ra1 12.Qa1 dc4 13.Bc4 Qe7 14.d3; 9.Ba3 Ne4 10.Bd6 Nd6 11.bc6 Nc6 12.cd5 ed5 13.Nc3 Be6 14.0-0) 9...ed5 10.Nc3 0-0 11.0-0 Qc7 12.Qc2 Be6 13.g3 Bg4 14.bc6; B) 8...Qc7 9.Qb3 (9.Bf6 gf6 10.Nc3 dc4 11.Bc4 Rg8 12.g3 a6 13.b6 Qb6 14.a5; 9.cd5 ed5 10.Bf6 gf6 11.Nc3 Be6 12.Nd4 Nd7 13.f4 Nc5 14.0-0; 9.Nc3 0-0 10.Qb3 Rc8 11.0-0 dc4 12.Qc4 cb5 13.Qc7 Rc7 14.ab5) 9...0-0 10.Bf6 gf6 11.Nc3 Rc8 12.0-0 cb5 13.Nb5 Bb5 14.Qb5; C) 8...dc4 9.Bc4 (9.Nc3 0-0 10.Bc4 Qc7 11.Qe2 Bc8 12.0-0 Nbd7 13.h3 Rb8 14.Rac1) 9...a6 10.Nc3 Qb6 11.a5 Qd8 12.b6 c5 13.Qc2 Nc6 14.Ne4; D) 8...Bc8 9.d4 (9.Nc3 Nbd7 10.0-0 0-0 11.d4 c5 12.h3 b6 13.cd5 ed5 14.Nh4; 9.Qc2 0-0 10.0-0 Nbd7 11.Nc3 Qc7 12.h3 h6 13.d4 c5 14.Rfd1; 9.0-0 0-0 10.d4 Nbd7 11.c5 Bc7 12.Nc3 h6 13.Qc2 e5 14.Rab1; 9.cd5 cd5 10.Nc3 Nbd7 11.0-0 b6 12.d4 0-0 13.Qb3 Bb7 14.Ba3) 9...dc4 10.Bc4 0-0 11.Nc3 Nbd7 12.0-0 c5 13.a5 Qc7 14.d5; E) 8...0-0 9.Nc3 (9.0-0 Be8 10.Nc3 Nbd7 11.d4 dc4 12.bc6 bc6 13.Bc4 Rb8 14.Qc2) 9...Qc7 10.Qb3 Be8 11.d4 dc4 12.Bc4 Nbd7 13.0-0 Nb6 14.Bd3.

8.Be5 A) 8...Bc8 9.Bd6 (9.cd5 Be5 10.Ne5 cd5 11.Be2 Nbd7 12.Nd3 0-0 13.0-0 e5 14.Qb3; 9.Bg3 0-0 10.Nc3 Ne4 11.Qc2 f5 12.Be2 Ng3 13.hg3 Nd7 14.Rb1) 9...Qd6 10.d4 c5 11.Nc3 Nbd7 12.Be2 dc4 13.Nd2 Qc7 14.Nc4; B) 8...Be5 9.Ne5 Ne4 10.Nc3 Nc3 11.dc3 0-0 12.cd5 ed5 13.Qd4 f6 14.Nd3.

8.h4 A) 8...0-0 9.Nc3 (9.Be2 a6 10.Nc3 Qc7 11.Qb3 ab5 12.ab5 Ra1 13.Ba1 Rc8 14.b6; 9.h5 h6 10.Nc3 e5 11.d4 Bg4 12.de5 Be5 13.Qd2 Nbd7 14.Ne5; 9.Qc2 Qe7 10.Nc3 a6 11.Qb3 h6 12.d4 ab5 13.c5 Bc7 14.ab5) 9...Qa5 10.Be2 Rc8 11.Qb3 dc4 12.Bc4 Qb4 13.Qb4 Bb4 14.Bd3; B) 8...Bc8 9.d4 Bb4 10.Bc3 a5 11.Qb3 Qe7 12.Bd3 0-0 13.c5 Nbd7 14.Nbd2; C) 8...Qe7 9.Be2 (9.Be5 0-0 10.Nc3 Rc8 11.Rc1 a6 12.bc6 Nc6 13.Bf6 Qf6 14.cd5; 9.Nc3 0-0 10.Qb3 a6 11.Bd3 dc4 12.Bc4 ab5 13.ab5 Ra1 14.Ba1; 9.Qb3 0-0 10.d4 Bb4 11.Nc3 a6 12.c5 Bc3 13.Bc3 ab5 14.Bd3) 9...0-0 10.Nc3 e5 11.d4 e4 12.Nd2 Be6 13.0-0 Nbd7 14.c5; D) 8...h6 9.Nc3 (9.Bd3 Bc8 10.Qc2 0-0 11.0-0 Nbd7 12.Nc3 Nc5 13.Ba3 Nd3 14.Bd6; 9.Be2 0-0 10.Nc3 Be8 11.d4 Nbd7 12.c5 Bc7 13.Nd2 e5 14.0-0) 9...Bc8 10.d4 0-0 11.c5 Bc7 12.Bd3 Nbd7 13.0-0 e5 14.Bf5; E) 8...a6 9.Nc3 0-0 10.Bd3 Qc7 11.Qb3 ab5 12.ab5 Ra1 13.Ba1 dc4 14.Bc4.

6.c4 dc4 7.Bc4 Nbd7 8.d4 0-0 9.0-0 Nb6 10.Bd3 c6 (10...Nfd5 11.Nc3+=) 11.a4 a5 12.e4 Bf4 (12...Bb4!?+–) 13.g3 Bh6 14.Qc2 (14.Nc3 cb5 15.Nb5 Bd7+–) 14...Ng4 (14...cb5 15.ab5 g6 16.Nbd2+–) 15.h3+– Nf6 16.bc6 e5?? (better 16...bc6 17.Ba3 Re8+–) 17.c7 Qc7 (17...Qd7 18.de5 Nh5+–) 18.Qc7 (18.Qc7 Nbd5 19.ed5+–) 1–0. DEFFM – GuestFGVZ, freechess.org, 2019.

6.Be2 0-0 7.0-0 Nbd7 8.d4 Re8 9.c4 c6 (9...dc4 10.Nbd2=) 10.c5+= Bc7 11.a4 (better 11.Na3+=) 11...b6 (better 11...e5=) 12.bc6+– Nf8 (12...Nb8 13.cb6 ab6 14.Bb5+–) 13.cb6 Bb6 (13...ab6 14.Nc3+–) 14.Qc2 (14.Nc3 Rb8+–) 14...Qc7 15.Nbd2 (15.Rc1 Ng6+–) 15...a6 (15...a5 16.Ne5+–) 16.Ne5 Ng6 (16...a5 17.Rab1+–) 17.Ndf3 (17.Rfc1 Rb8+–) 17...Ne4 (17...Rb8 18.Ng6 hg6 19.Rfc1+–) 18.Bd3 (18.Ng6 hg6 19.Bd3 Nf6+–) 18...Ne5 (18...Ne7 19.Be4 de4 20.Qe4+–) 19.Ne5 f6 20.a5 (20.Nf3 f5+–) 20...Ba7 (20...Ba5 21.Be4 de4 22.Nc4+–) 21.f3 (21.Nf3 Rb8+–) 21...Ng5 22.h4 Nf7? (22...fe5 23.hg5 g6 24.Bg6 Re7+–) 23.Bh7 Kf8 (23...Kh8 24.Nf7 Qf7+–) 24.Ng6 1–0. DEFFM – GuestZHQV, freechess.org, 2018.

6.a4 0-0 7.Bd3 c6 8.c4 dc4 9.Bc4 cb5 10.ab5 a6 11.0-0 Ra7 (11...Bd6 12.d3=) 12.Nc3 (12.Qc2 Qe7+=) 12...ab5 13.Nb5 Bb5 (13...Ra1 14.Qa1 Be7 15.d3+=) 14.Bb5 Ra1 15.Qa1 Qb6 (15...Be7!?+=) 16.Bf6+– Qb5 (16...gf6!? 17.Rb1 Qd8+–) 17.Bg7+– f5? (better 17...Rc8+–) 18.Bf8 Bf8 19.Qf6 Qd7 20.Nd4 e5 (20...Be7 21.Qe6 Qe6 22.Ne6+–) 21.Qe5 Bg7 (21...Nc6 22.Qf5 Qf5 23.Nf5 b5+–) 22.Qb8 (22.Qb8 Bf8 23.Rb1+–) 1–0. DEFFM – GuestCYRM, freechess.org, 2018.

6.a4 a6 7.Be2 ab5 8.ab5 Ra2?? (better 8...Ra1 9.Ba1 c6=) 9.Ra2+– 1–0. Pierre – Rikkert, internet, 2019.

6.a4 b6 7.Be2 0-0 8.0-0 a6 9.Ne5 c6 10.Nd7 Nfd7 11.c4 cb5 (11...dc4!? 12.Bc4 Qh4=) 12.ab5+= Ne5?? (better 12...dc4 13.Bc4 a5+=) 13.Be5+- 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.a4 c6 7.Be2 Qb6 8.0-0 (8.Bf6 gf6 9.a5 Qc7 10.bc6 Bc6=) 8...Qd8 (8...cb5!? 9.a5 Qd8=+) 9.d4 Bd6 (9...Be7 10.Ba3+=) 10.c4 (10.Ba3 Bc7+=) 10...dc4 11.Bc4 Qe7 (11...a6 12.Nc3+=) 12.Nc3 (12.Ba3+=) 12...b6 (12...0-0 13.Qe2+=) 13.e4 (13.Ne5+–) 13...e5 (better 13...Bb4!? 14.Qd3 0-0+–) 14.de5+– Be5 15.bc6 (15.Ne5 Qe5 16.Nd5 Qb2 17.Nc7 Ke7 18.Na8 Rc8+–) 15...Nc6 (15...Bc6!? 16.Ne5 Qe5+–) 16.Ba3 (16.Ne5?! Qe5 17.Qb3 Qh5+–) 16...Qd8 17.Nb5 (17.Qb3 Qb8 18.Rad1 Na5 19.Bf7 Kd8+–) 17...Ne4 (17...Bb8 18.Qb3 Rf8+–) 18.Ne5 Ne5 19.Qd5 Nc4 (19...f6 20.Rfe1 Qc8 21.Qe4 Kd8+–) 20.Qe4 Be6 21.Qc6 (21.Qc6 Qd7 22.Qa8 Qc8 23.Qa7 Qd7 24.Nc7 Qc7 25.Qc7 Na3 26.Qb8 Ke7 27.Qh8 (27.Ra3?! Rb8 28.Rb1 Rd8+–) 27...Nc2 28.Rad1 Kf6 29.Qh7 Bf5 30.Qh4 Kg6 31.g4 Nd4 32.Rd4 Be6 33.Qh5 Kf6 34.h4 Ke7 35.Qg5 f6 36.Qg7 Ke8 37.Re1 f5 38.Re6) 1–0. DEFFM – kimozo, freechess.org, 2018.

6.a4 Qe7 7.Be2 a6 8.0-0 b6 9.c4 Bd6 10.Nc3 dc4 11.Bc4 e5 12.Nd5 Qd8? (12...Nd5 13.Bd5 Ra7 14.Qb3+=) 13.Ng5 (13.Ne5 Be6 14.Nf6 Qf6 15.Be6 Qe6 16.Qf3+-) 13...Nd5?? (better 13...ab5!? 14.Nf6 Qf6 15.Bf7 Ke7+=) 14.Bd5 (better 14.Nf7 Kf7 15.Bd5 Ke8 16.Ba8 ab5 17.Be5 Be5 18.Qh5 Kf8 19.Qe5 ba4 20.Qf4 Ke8 21.Bd5+-) 14...c6?? (14...Qg5 15.Ba8 ab5 16.f4 ef4 17.ef4+/-) 15.Bf7 (better 15.Nf7 Qc7 16.bc6 (worse 16.Nh8 cd5 17.Rc1 Qd8 18.Qh5 g6 19.Qh7 Be6+-) 16...Bc6 17.Bc6 (worse 17.Nh8 Bd5 18.d4 Qb7 19.de5 Bc5+-) 17...Nc6 18.Nh8+-) 15...Kf8 16.Qf3?? (16.Qh5 ab5 17.Bb3+-) 16...Qg5-/+ 17.Be6 Ke7 (17...Qf6!? 18.Qf6 gf6 19.Bd7 Nd7 20.bc6 Nc5=+) 18.Qf7= Kd8 19.Bd7 Nd7 20.bc6 Nc5 21.Ba3 (21.f4 Qh6 22.fe5 Be7+-) 21...Rf8 (better 21...Qe7 22.Qd5 e4=) 22.Qd5+/- Kc7? (22...Qh6 23.a5 Ke7 24.ab6 Qe6 25.Qe6 Ne6+-) 23.Bc5?? (better 23.a5 b5 24.Bc5+-) 23...bc5=+ 24.Rab1 Rab8 25.a5 Rfd8 (better 25...Qg6!? 26.d3 Rb4 27.Rb4 cb4-/+) 26.Rb6+= Bf8 (26...Be7 27.Qb3 Qf5 28.d3+/-) 27.Qf7 (27.Qb3 Qe7+/-) 27...Qe7+= 28.Qb3 Rb6?? (better 28...Rdc8+=) 29.Qb6+- (worse 29.ab6 Kc6 30.Ra1 Qb7 31.Qe6 Bd6=+) 29...Kc8 (29...Kd6 30.c7 Kd7 31.cd8R Qd8 32.Qa6 Bd6+-) 30.Rb1 Rd2 (30...Qa7 31.Qa7 Rd2 32.Rb8) 31.Qb8 1-0. Delaza62 (1655) - Aceves (1610), Rated Classical game, lichess.org.

6.c4 dc4 7.Bc4 0-0 8.0-0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qe8 (11...Bd6 12.Qc2=) 12.Nc3 (12.Bf6 gf6 13.Nc3 Bb4+–) 12...c6 13.Qb3 cb5 (13...Bd6 14.bc6 Nc6 15.Nb5+=) 14.Bb5 (14.Nb5 Qe7+=) 14...Bc6 15.Ne5 Bd6 16.Nc6 bc6 17.Be2 Qd7 18.d4 Qc7 19.h3 Nbd7 20.Qc2 Nd5 21.Ne4 N7f6 (21...Nb4 22.Qd2+=) 22.Nf6 Nf6 23.e4 e5 24.d5 (24.Bd3 c5 25.d5 Nh5+=) 24...c5 (better 24...cd5!? 25.Qc7 Bc7=+) 25.Bc3 h6 26.f4 (26.Rb1 Ra8+=) 26...ef4 27.Bf6 gf6 28.Bc4 (28.Kh1 Be5=) 28...Be5 (28...Qe7 29.Qe2=) 29.Qe2 Kh7 30.Qg4 Exerts pressure on the isolated pawn 30...Qd6 31.Qf5 (31.Qh5 Kg7=) 31...Kh8 (31...Kg7 32.Rd1=) 32.Rf3 (32.Qh5 Kg7=) 32...Rg8 33.Qh5 Rg6 34.Qf5 Kg7 35.Kh1 Qc7 (35...Qb6=+) 36.h4 (36.Qh5 Qa5 37.Rf1 Qd2=) 36...Qb8 (36...Qa5 A) 37.Rf4?? Qc3 (37...Bf4?! 38.Qf4 Qe1 39.Bf1–+) 38.Rf1 Rg2–+; B) 37.Kh2–/+) 37.Qd7 (37.Rb3!? Qa8 38.Rb1–/+) 37...Qb1 (37...Qb4 38.Bd3–+) 38.Rf1?? (better 38.Kh2 Qe1 39.Qf5–+) 38…Qe4–+ (38...Qe4 39.Qh3 Qc4–+) 0–1. GuestQJBS – GuestXFMN, freechess.org, 2017.

6.c4 c6 7.a4 cb5 8.cd5 (8.ab5 dc4 9.Bc4 0-0+=) 8...Nd5 (8...ba4!? 9.de6 fe6=) 9.Bg7+= Rg8 10.Be5 ba4 11.Qc2 b6 (11...Bf8 12.Qh7 Rg6 13.Nc3+=) 12.Qh7+– Rg6 13.Nh4 (13.Nc3 Bf8+–) 13...Rg4+= 14.Nf3 Nc6 (better 14...Rg6!?=) 15.Nc3+– Nc3 16.Qh8 (better 16.Bc3 Bf8 17.h3+–) 16...Ke7?? (better 16...Bf8 17.Bd6 Ne7 18.dc3 Rg8+=) 17.Bf6+– Kd6 18.Bd8 Rd8 19.Qc3 1–0. Anonymous – Anonymous, lichess.org, 2020.

6.Bd3 0-0 7.0-0 b6 (7...a6 8.a4=) 8.Ne5 Ne8? (8...a6 9.a4+=) 9.f4 (9.c4!? a6 10.Nc3 dc4 11.Bc4 ab5 12.Nb5 Nd6 13.Nd6 cd6 14.Nd7 Nd7+=) 9...Nd6 (9...a6 10.a4 ab5 11.ab5 Ra1 12.Ba1+–) 10.Qh5 g6? (better 10...Nf5+–) 11.Qh6+– Bb5 (11...f6 12.Rf3 Qe7 (12...fe5?? 13.Bg6 Rf5 14.Qh7 Kf8 15.fe5+–) 13.Ng6 Qg7 (13...hg6?? 14.Rg3 Qg7 15.Rg6+–) 14.Qg7 Kg7 15.Nf8 Kf8+–) 12.Ng6! Nf5 (12...fg6 13.Qg7; 12...hg6 13.Qg7) 13.Bf5 f6 14.Nf8 (14.Be6 Rf7 15.Ne5 Be3 16.de3 Qf8 17.Qf6 h5 18.Nf7 Qf7 19.Qf7) 14...ef5+– 15.Qh7 Kf8 16.Qh8 Ke7 17.Bf6 (17.Bf6 Kf7 18.Qd8+–) 1–0. GuestBGTK – GuestHDHG, freechess.org, 2019.

6.a4 c6 7.Be2 cb5 (7...0-0 8.0-0=) 8.ab5 0-0 9.0-0 a6 10.d4 Bb6 (10...Bd6!?+=) 11.c4+– dc4 12.Bc4 Qc7 (12...a5 13.Nc3+–) 13.Nbd2 Qb8 14.Qb3 ab5 (14...a5!?+–) 15.Ra8 Qa8 16.Bb5 Qb8 (16...Rd8 17.Ba3+–) 17.Bc4 (better 17.Ba3!? Re8 18.Nc4+–) 17...Qd6?? (better 17...Bc7+–) 18.Ba3+– (18.Ba3 Qc7 19.Rc1+–) 1–0. GuestFDDB – GuestTLMZ, freechess.org, 2019.

6.c4 0-0 7.cd5 ed5 8.Bd3 Re8 9.Nc3 Ne5 (9...Bd6=+) 10.Bb1?? (better 10.Ne5 Re5 11.Na4+-) 10...Nc4 11.Qc2 g6 (11...Bg4 12.0-0-/+) 12.Nd5 Bf5?? (better 12...Nb2 13.Qc5 Nd5=+) 13.Qc4 (better 13.Nf6 Qf6 14.Bf6 (14.Qc4?! Qb2 15.Qc3 Qc3 16.dc3 a6+=) 14...Bc2 15.Bc2+-) 13...Qd5 14.Qd5 Nd5 15.Bf5 gf5 16.0-0 b6 (16...a6 17.a4+-) 17.Ne5 Re6 0-1. b4_Bb2 (1685) - igalan77 (1775), lichess.org, 2019.

6.c4 a6 7.d4 Bb4 8.Bc3 Bc3 9.Nc3 ab5 10.cb5 =.

6.c4 Nb6 7.d4 Bb4 8.Bc3 Bc3 9.Nc3 dc4 =.

6.c4 Nb6 7.cd5 ed5 8.Qc2 Qe7 9.Be2 =.

6.c4 Nb6 7.cd5 Nbd5 8.Qc2 b6 (8...Be7 9.Be5=) 9.a3 (9.d4 Bb4 10.Nbd2 0-0+=) 9...0-0 (9...a6 10.e4 Nf4 11.d4+=) 10.Be2 (10.d4!? Be7 11.Bc1+=) 10...a6= 11.Ne5 (11.d4 Be7=) 11...Bb7 12.0-0 a5 (12...ab5!? 13.Bb5 Ra5=) 13.Bf3 (13.Rc1 Bd6+=) 13...Bd6 (13...Nd7 14.Nc6 Bc6 15.bc6+=) 14.Nc6 Ne7?? (better is 14...Bc6 15.Qc6 a4+=) 15.Ne7 Qe7 16.Bb7 Rad8 17.a4 Nd5 18.Bd5 ed5 19.Ba3 Ba3 20.Ra3 Rfe8 21.Rc3 d4 22.Rc7 Rd7 23.Rc1 Rc7 24.Qc7 Qc7 25.Rc7 h6 26.Rc6 de3 27.fe3 Rb8 28.Nc3 f5 29.d4 Kh7 30.Nd5 g5 31.Rb6 Re8 32.Nf6 (32...Kg6 33.Ne8 Kf7 34.Nd6 Kf6 35.Nc4 Ke7 36.Rd6+–) 1–0. nogumo – Master1, mySchach.de, 2005.

6.c4 dc4 7.Bc4 b6 8.0-0 Bb7 9.Bf6 Nf6 10.d4 Be7 11.Nbd2 c5 12.bc6 Bc6 13.Ne5 Bb7 14.Bb5 Nd7?? (better is 14...Kf8+=) 15.Nd7 (15...a6 16.Nb6 ab5 17.Na8 Qa8 18.Qg4+–; better is 15.Bd7 Kf8 16.Rc1+–) 1–0. hal1958 – rchessmaster, HCL–A1526 playchess.de, 2003.

6.d3 c6 7.a4 Bb4 8.c3 c5?? (better is 8...Bd6=) 9.cb4+– cb4 10.Be2 0-0 11.0-0 a6 12.Nbd2 ab5 (12...Qe7 13.d4+–) 13.ab5 Ra1 14.Ba1 (14.Qa1 Qb6+–) 14...b6 (14...Qa5 15.d4+–) 15.Nd4 Bb7 16.Qb3 Qe7 17.Nc2 (17.Rc1 Ra8+–) 17...Ra8 18.Qb4 Qb4 19.Nb4 Ra4 20.Rb1 e5 21.Nf3 e4 22.de4 de4 23.Nd2 Nd5 24.Nd5 Bd5 25.Kf1 Nc5 26.Bd4 Ra2 27.Bc5 bc5 28.Ke1 (28...f5 29.b6+–) 1–0. Mroz,Antoni – Osowicki,Leszek, corr Poland, 1986.

6.d4 Bb4 7.c3 Be7 8.Bd3 =.

6.d4 Bb6 7.Bd3 a6 8.ba6 ba6 9.0-0 c5 10.Nbd2 (10.c4 cd4 11.Nd4 dc4 12.Bc4 Bb7=) 10...0-0 (10...c4 11.Be2=) 11.Ba3 (11.c4 cd4 12.Nd4 Bb7=) 11...Re8 12.c4 e5 (12...cd4 13.ed4 e5 14.de5 Ne5 15.Ne5 Re5 16.c5=) 13.Ne5 (13.de5 Ne5 14.Ne5 Re5+=) 13...Ne5 14.de5 Re5 15.Rb1 (15.Bb2 Bg4 16.Bh7 Kh7+=) 15...Rh5 (15...Bg4 16.Qc2=) 16.Nf3 (16.Bb2 Qd6 17.h3 Bc7+/–) 16...Bc7= 17.h4 (better is 17.Bb2!?=) 17...Bg4–/+ 18.g3 (18.Rc1 Qd6 19.g3 dc4–/+) 18...Qd6 19.Be2 Bh3 20.Re1? Re8?? 21.cd5 Re3 22.Qc1 Re4 23.Qc5 Rd5?? 24.Qd6+– Bd6 25.Bd6 Rd6 26.Ng5 Re5 27.Rb8 Re8 28.Re8 Ne8 29.Nh3 h6 30.Ba6! Ra6 31.Re8 Kh7 32.Re2 f6 33.Nf4 g5 34.Re7 Kg8 35.hg5 hg5 36.Re6 Ra2 37.Nh5 Ra7 38.Rf6 Rf7 39.Rf7 Kf7 40.g4 Kg6 41.Kg2 Kh6 42.Kf3 Kg6 43.Ke4 Kh6 44.Kf5 Kh7 45.Kg5 Kh8 46.Kg6 Kg8 47.f4 Kh8 48.f5 Kg8 49.f6 Kh8 50.Ng7+– Kg8 51.f7 Kf8+– 52.Ne6 (52...Ke7 53.Nd4+–) 1–0. Trkn – monkey_x, itsyourturn.com, 2001.

6.d4 Bd6 =.

6.Be2 0-0 7.0-0 Qe7 8.d4 Bd6 9.c4 dc4 10.Nbd2 Nb6 (10...c3 11.Bc3 Nd5 12.Bb2=) 11.Nc4 Nc4 12.Bc4 b6 (12...a6 13.ba6 ba6 14.Ne5=) 13.Qe2+= Bb7 14.Ne5 Be5 (14...Rfd8 15.Bd3+=) 15.de5 Ne4 16.f3. b4_player – idyll, casual, 2013.

5.a4 a6 6.Nc3 (6.Nf3 Nbd7=) 6...Bd7 (6...e5 7.Nf3=) 7.Nf3 (7.Ba3 c5=) 7...e5 8.a5 (better is 8.ba6 ba6 9.Ba3=) 8...ab5 (better is 8...Qe6!?=) 9.Nb5+/– (9.Bb5?! Bb5 10.Nb5 Qd7=) 9...Bb5 10.Bb5 c6 11.Be5 Qd8 12.Bd3 Bd6 (12...Nbd7 13.Bc3+/–) 13.Bd6 Qd6 14.Qb1 Qd7 (14...Qc7 15.0-0+/–) 15.0-0 Qc7 (15...0-0 16.c4+/–) 16.Qb6+– Qd7? (better is 16...Qb6 17.ab6 Ra1 18.Ra1 Nfd7+–) 17.Rfb1 0-0 18.Qb7 Qb7 (18...Ra7 19.Qb8 Rb8 20.Rb8 Ne8 21.Ne5+–) 19.Rb7 Na6 (19...Rd8 20.a6+–) 20.Rb6 Nc5 (20...Nb8 21.a6 Nfd7 22.Rbb1+–) 21.Rc6 Nd3 22.cd3 Ne8 (22...Rfb8 23.Kf1+–) 23.a6 Nf6 (23...f6 24.Nd4+–) 24.a7 Rfd8 25.Rb6 (25.Ne5 Ne8+–) 25...h6 (25...Ne8 26.Nd4 Kf8 27.Kf1+–) 26.Ne5 d4 (26...Re8 27.d4+–) 27.Rb7 de3 (27...Kh7 28.Nc6 Rdc8 29.Nd4+–) 28.de3 Nd5 (28...Rf8 29.Nc4 Rad8 30.Nb6 Rd3 31.Kf1+–) 29.Nf7 Nc3 (29...Rf8 30.Nd6 g6+–) 30.Nd8 Rd8 31.Rb8 1–0. Janek – ijmagen, internet, 2017.

5.c4 Qb4 6.Qb3 Qb3= 7.ab3 Bb4 (7...Nbd7 8.Nf3=) 8.Nc3 0-0 9.Nf3 c6 (9...Nbd7 10.Ba3 Bc3 11.dc3=) 10.bc6+= bc6 11.Ba3 Bc3 (11...c5 12.cd5 Nd5 13.Nd5 ed5 14.Bb4 cb4 15.d4+=) 12.dc3 Ne4? (better 12...Re8!?+=) 13.Bf8+– Kf8 14.cd5 ed5 15.c4 Ba6 (15...Be6 16.Nd4+–) 16.Ne5 (16.cd5 Bf1 17.Rf1 cd5+–) 16...Ke7 (16...dc4 17.Nc4 Bc4 18.Bc4+– (worse 18.bc4 a5+–)) 17.cd5 (better 17.Nc6 Nc6 18.Ra6+–) 17...cd5?? (better 17...Bf1 18.Rf1 cd5+–) 18.Ba6 (18.Ra6?! Na6 19.Ba6 Nc5+–) 18...Na6 19.Ra6 Nc5 20.Nc6 Kd7 21.Ra7 Ra7 22.Na7 Nb3 23.Nb5 (23.Ke2 Kd6+–) 23...Na5 (23...Kc6 24.Na3+–) 24.Ke2 Kc6 (24...Nc6 25.Rc1+–) 25.Nd4 Kc5 26.Rc1 (26.Rb1 Nc4+–) 26...Nc4 27.Kd3 (27.Ra1 Kb6+–) 27...g6 28.e4 Kd6 (28...de4 29.Ke4 Kb4 30.Rb1 Kc5 31.Rb5 Kd6 32.f4+–) 29.ed5 (better 29.Nb5!? Ke5 30.ed5 Nb6+–) 29...Nb2 (29...Ne5 30.Kc3+–) 30.Kc3 Na4 31.Kb4 Nb6 32.Rc6 Kd5 33.Rb6 Kd4 34.Rb7 Kd3 (34...h5 35.Rf7 Ke5 36.h4+–) 35.Rf7 h5 36.Rg7 Ke2 37.Rg6 Kf2 38.Kc3 (better 38.h4 Ke3+–) 38...Kg1 39.h3 Kh2 (39...Kf2 40.h4+–) 40.Rh6 (40.h4 Kg1 41.g4 hg4 42.h5 Kg2 43.h6 Kg3 44.h7 Kh3 45.h8Q Kg2 46.Rg4 Kf2 47.Qh3 Ke2 48.Rg2 Ke1 49.Qh1) 40...Kg2 41.Rh5 Kh2 42.Rg5 (42.h4!? Kg3 43.Rh8 Kh3+–) 42...Kh3 43.Kd3 Kh4 44.Rg8 Kh5 45.Ke4 Kh6 46.Kf5 Kh7 47.Rg6 Kh8 48.Kf6 Kh7 49.Kf7 Kh8 50.Rh6 1–0. jaddwarrior (2090) – rico41, ChessWorld.net, 2016.

5.c4 c6 6.a4 cb5 7.ab5 a6 (7...Nbd7 8.Nf3=) 8.Nf3 Qc5 (8...Nbd7 9.Ba3 Qc7 10.Bf8 Rf8 11.cd5 Nd5 12.ba6 ba6 13.Bb5=) 9.cd5 ab5?? (better 9...Nd5 10.e4 Nb4+=) 10.Ra8+– (10.Ra8 Nfd7 11.de6 fe6 12.Bd4+–) 1–0. GuestSFDF – BakaisNofal, freechess.org, 2017.

5.Nf3 Qb4 6.Ba3 Qg4 (6...Qa5 7.Bf8 Kf8 8.c4+=) 7.h3 Qg6 8.Bd3 Qg2?? (better 8...Ne4 9.Bf8 Qf6+=) 9.Rh2+– (9.Rh2 Qh2 10.Nh2+–) 1–0. GuestGBJY – GuestHRYK, freechess.org, 2020.

5.Nf3 Bd7 6.a4 Be7 (6...Qb4 7.Bc3 Qg4 8.Bf6 gf6 9.Nc3=) 7.Ba3 Qb6 (7...c5 8.bc6 Qc6 9.Be7 Ke7 10.Bb5=) 8.Be7+= Ke7 9.Bd3 (9.d4 Qa5 10.Qd2 Qd2 11.Nbd2 a6+=) 9...h6 (9...Qd6 10.0-0=) 10.0-0 (10.Nc3 c5+=) 10...g5 (10...Qd6 11.c4+=) 11.c4 (11.Nc3 a6+–) 11...g4 (11...Qd6 12.cd5 ed5 13.Nc3+=) 12.Ne5+– Qd6 (12...Qc5 13.Na3 dc4 14.Nac4+–) 13.Ng4 h5 (13...dc4!? 14.Bc4 Ng4 15.Qg4 a6 16.Qh4 f6+–) 14.Nf6+– Kf6 15.Qf3 Ke7 16.cd5 (better 16.Nc3 c6 17.Rab1+–) 16...Qd5?? (better 16...ed5 17.Nc3 c6+–) 17.Be4 Qe5 18.d4 Qg5 (18...Qf6 19.Qf6 Kf6 20.Bb7+–) 19.Bb7 Rg8 (19...c5 20.Ba8 cd4 21.ed4+–) 20.Ba8 Be8 (20...a6 21.ba6 Na6 22.Rc1+–) 21.Nd2 (21.Rc1 a6+–) 21...Nd7 (21...a6 22.Rfc1 Nd7 23.Rc7+–) 22.Ne4 (22.Qb7 c5+–) 22...Qg6 (22...Qg4 23.Qg4 hg4 24.Rfc1+–) 23.Rfc1 Nb6 (23...f5 24.Nd2+–) 24.Rc7 Kd8 25.Ra7 Na8 26.Ra8 Kc7 27.Qf4 Kd7 (27...e5 28.Qe5 Qd6 29.Qd6 Kb7 30.Qb8) 28.Qd6 1–0. GuestMMLL – GuestCBBP, freechess.org, 2020.

5.Nf3 Nfd7 6.Be2 (6.Ba3 Qb6=) 6...c5 (6...e5 7.0-0=) 7.c4 (7.0-0 e5+=) 7...a6 (7...e5 8.cd5 e4 9.Ng5 Qd5 10.h4+=) 8.a4 1–0. GuestSKNX – GuestBTHQ, freechess.org, 2018.

6.Bc4 Qb6 7.a4 a6 8.Nc3 Bd7 9.Nf3 Bb4 10.Qb3 Bc3 (10...ab5!? 11.Nb5 Nc6+=) 11.Bc3+/- (11.Qc3?! ab5 12.ab5 Ra1 13.Ba1 Bb5 14.Bb5 Qb5 15.Qc7 0-0=) 11...ab5 12.Bb5 (12.ab5!? Ra1 13.Ba1+/-) 12...Bb5= 13.Qb5 Qb5 14.ab5 Ra1 15.Ba1 0-0 (15...Ke7 16.Ke2+=) 16.0-0 (16.Bf6 gf6 17.Ke2 c5+/-) 16...Ne8 17.Rc1 c6 18.Rb1 (18.Be5 Nf6+=) 18...Nf6 (better 18...Nd6!? 19.bc6 Nc6= (worse 19...bc6 20.Be5 Nb5 21.Bb8 Rb8 22.Ne5+/-)) 19.bc6 bc6 20.Ne5 c5 21.d3 Nbd7 22.Nd7 Nd7 23.Rb7 Ne5?? (better 23...Rb8 24.Rb8 Nb8=) 24.Be5+- f6 25.Bd6 Rd8 26.Bc5 (26.Rb8!? Rb8 27.Bb8 Kf7+-) 26...Rd3 27.h3 h6 28.Kf1 e5 29.Ke2 Rd8 30.Ba7 Ra8 31.Rb8 Rb8 32.Bb8 Kf7 33.Kf3 Ke6 34.Ke4 (34.e4 h5+-) 34...f5 35.Kf3 e4 36.Kg3 g5 37.h4 Kf6 (37...gh4 38.Kh4 Kf6 39.Kh5+-) 38.h5 Ke6 39.f4 (39.Ba7 Ke7+-) 39...g4 40.Kh4 Kd5 (40...Ke7 41.Be5 Kf7+-) 41.Be5 Kc4 42.Bg7 Kd3 43.Bh6 Ke3 44.Bf8 Kd3 45.Bc5 e3 46.Be3! Ke3 47.h6 (better 47.g3 Ke4+-) 47...Kf4 48.h7 Ke4 49.h8Q f4 50.Qg8 f3 51.Qg4 Kd3 52.Qf3 Kd2 53.Kg3 (53.g4 Kc1 54.g5 Kb2 55.g6 Kc1 56.g7 Kd2 57.g8Q Kc1 58.Qc3 Kd1 59.Qg4) 53...Ke1 54.Qf2 Kd1 55.Kf3 (55.Qb2 Ke1 56.Kf3 Kd1 57.g4 Ke1 58.Qe2) 55...Kc1 56.Ke3 Kb1 57.Kd3 Ka1 58.Kc3 Kb1 59.Qb2 1-0. Lisyonok – bondarevsergey, Rated Classical game, lichess.org.

6.Bc4 c6 7.a4 Qb4 8.Qc2 cb5 9.ab5 Nbd7 10.Nf3 Nb6 11.Be2 Bd7 The isolani on b5 becomes a target 12.Nc3 Nc4 13.Bc4 Qc4 14.Ra4 Qc8 15.Qb3 Be7 16.Rc4 Qd8 17.0-0 0-0 18.Ne5 Be8 19.Rd4 Nd5? (better 19...Qc7!? 20.f4 Nd7 21.Nd7 Bd7+=) 20.Nd5+– ed5 21.Rd5 Qc8 22.Rc1 Qe6 23.e4 a6 24.b6 (24.ba6 ba6 25.Rc7 Bd6+–) 24...Bf6 (24...f6 25.Nf3 Bf7 26.Qe3+=) 25.f4 Be5 (25...Bc6 26.Nc6 bc6 27.Rd3 Bb2 28.Qb2 Qe4 29.Qd4+–) 26.Re5?? (26.Be5 Bc6 27.Qg3+=) 26…Qb3–+ (26...Qb3 27.Bd4 Bc6–+) 0–1. GuestXVHW – GuestLLDL, freechess.org, 2017.

5.a4 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 Bd7).

5.a4 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.a4 e6 4.b5 c5 5.e3 Bd7).

5.a4 c6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 Bd7).

5.c4 a5 6.a3 (6.Nf3 c6+=) 6...Bd6 (6...c6 7.Nc3=) 7.Nf3 0-0 8.Qc2 (8.Nc3 c6=) 8...dc4 (8...Bc8 9.d4+=) 9.Bc4 c6 10.a4 (10.Nc3 cb5 11.Nb5 Bb5 12.Bb5 Nbd7+=) 10...cb5= 11.ab5 Qc7 12.Bf6 gf6 13.Nc3?? (better 13.Qd3=) 13...Qc4–+ 14.d3 Qc7 15.Qb2 (15.Ke2 Bb5! 16.Rhc1–+) 15...Bb4 16.Rc1 (16.Kd2 Rd8 17.Nd4 Rc8–+) 16…Rc8 1–0. Reimer,Karl – Schaefer,Udo, PF–op, 1993.

5.Nc3 Bb4 6.Nf3+= 0-0 7.Be2 Bc3 (7...Be8 8.0-0=) 8.Bc3+= b6 (8...Ne4 9.Bb2+=) 9.Ne5 (9.0-0 c6 10.a4 Ne4+–) 9...c6 (9...Ne4 10.0-0+=) 10.a4 (10.Nd7 Qd7 11.Bf6 gf6+–) 10...Ne4 11.Bb2 f6 (11...Qc7 12.f4+=) 12.Nd7 Nd7 (12...Qd7 13.0-0+=) 13.f3 (13.bc6 Ne5 14.d3=) 13...Nd6= 14.bc6 Ne5 (14...Nb8 15.0-0=) 15.Be5+= fe5 16.c4 dc4 (16...d4!?+=) 17.Rc1+– e4 (17...Qh4 18.g3 Qh3 19.Bc4 Nc4 20.Rc4+=) 18.Bc4 (better 18.f4+–) 18...ef3? (better 18...Nc4 19.Rc4 ef3 20.gf3 Rc8+=) 19.Be6+– Kh8 20.gf3 h6 (20...Qh4 21.Ke2+–) 21.0-0 Qc7 (21...Qe7 22.Bg4+–) 22.Bd7 (22.f4 Rad8+–) 22...Nf5 (22...Rf6 23.d4 Raf8 24.Kh1+–) 23.Rc4 (23.Qc2 Nd6+–) 23...Ne7 (23...Rf6 24.Qc2 Raf8 25.f4+–) 24.d4 (24.Qc2 Rad8+–) 24...Nd5 25.Qd2 (25.Qd3 Rad8+–) 25...Nf6 (25...b5 26.Rc5 Nb6+–) 26.Be6 White prepares the advance d5 26...a6 (26...Rad8 27.f4 Rd6 28.d5+–) 27.e4 White plans d5 (27.d5 Rad8+–) 27...Rae8 (27...b5 28.Rc5 ba4 29.e5+–) 28.d5 Nh5 (28...Rd8+–) 29.d6 Rd8 (29...Qa7 30.d7 Rd8 31.c7 b5 32.Qf2 Qf2 33.Kf2 bc4 34.c8Q Rc8 35.dc8R Rc8 36.Bc8+–) 30.Qh6! gh6 31.dc7 b5 (31...Rde8 32.c8R Rc8 33.Bc8 Rc8+–) 32.cd8Q (32.cd8R Rd8 33.Rd4 Rd4+–) 32...Rd8 33.ab5 Nf4 34.c7 Rf8 35.c8Q Ne6 36.Qe6 Rg8 37.Kf2 (37.Kf2 Rg7 38.Qh6 Kg8 39.Rc8 Kf7 40.Rc7 Kf8 41.Rg7 ab5 42.Qh8) 1–0. shakattack – 19larry, ChessWorld.net, 2016.

5.Nc3 Bd6 6.Nf3=.

5.c4 Bd6 6.Nf3 c6 7.a4 cb5 8.ab5 0-0 9.d3 dc4 (9...a6 10.Be2=) 10.dc4 a6?? (better is 10...Qe7=) 11.Qd6+– 1–0. Janek – Nicolas, internet, 2016.

5.d4 Bb4 6.Bc3 Bd6 7.Bd3 =+.

5.d4 Bd6 6.Bd3 (6.Ba3 Ba3 7.Na3 c5=+) 6...c6 7.a4 Qc7 (7...cb5 8.ab5 0-0 9.Ba3 Ba3 10.Ra3=) 8.Nf3 0-0 (8...cb5 9.ab5 (< 9.Bb5 Bb5 10.ab5 0-0=+) 9...a6 10.0-0=) 9.Nbd2 (9.0-0 cb5 10.ab5 a6=) 9...cb5=+ 10.ab5 Qb6 11.Qe2 Bb4 12.0-0 Bd2 13.Nd2+= Rc8 14.c4 dc4 15.Nc4 Qc7? 16.Ra7!? Ra7 17.b6 Qc6 18.ba7 Na6 19.Ne5 Qb6 20.Nd7 Nd7 21.d5 Ndc5 22.Bd4 Qb3? 23.Bc5 Nc5 24.Ra1 Ra8 25.Qc2 Qd3+= 26.Qc5 Qd5 27.Qd5 ed5 28.Kf1 Kf8 29.Ke2 Ke7 30.Kd3 Ke6 31.Kd4 Kd6 32.f3 Kc6 33.Ke5 b6 34.Kd4 Kb7= 35.Kd5 Ra7 36.Ra7 Ka7 37.Kc4 Ka6 38.Kb4 b5 39.h4 Kb6 40.g4 Kc6 41.e4 Kd6?? 42.f4?? Kc6=+ 43.h5 f6 44.e5 fe5 45.fe5 Kd5 46.g5 Ke5 47.h6 g6 0–1. Richter,Rainer (2220) – Garban,Alexandru, Timisoara op, 1995.

5.Be2 a6 6.ba6 Na6 7.Nf3 =.

5.Be2 c5 6.Nf3 Bd6 7.0-0 0-0 8.c4 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qc7 12.Bf6+/– gf6 13.Nc3 Kh8 14.cd5+/– ed5 15.Nd5+– Qd8 16.Qa1 Be6? 17.Nf6 (17...Bf5 18.Nd7 Kg8 19.Nf8 Qf8 20.d4+–; 17.Qf6?! Qf6 18.Nf6 Be7+–) 1–0. pierre – tsvetomir, internet, 2006.

5.Nf3 Bb5?? 6.Bb5+– (6.Bb5 Nbd7 7.Nc3+–) 1–0. GuestCRFJ – GuestVZLP, freechess.org, 2019.

5.Nf3 Bc5 6.d4 Bb6 (6...Bb4 7.c3 Be7 8.Nbd2+=) 7.Bd3 0-0 (7...a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Ba5 11.Bc3=) 8.0-0 (8.Nbd2 a6 9.a4 c5 10.dc5 Bc5+=) 8...a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 c6 12.Bb2 cb5 13.Ba3 Re8 14.Nc3 Attacks the isolani on b5 14...Ne4 (14...Qc7 15.Nb5 Bb5 16.Bb5+=) 15.Ne4+– de4 16.Be4 Nc6 (16...Bc6 17.Qd3 f5 18.Bc6 bc6 19.c4+–) 17.Qb1 (17.c3+–) 17...Na7 (17...Na5!?+–) 18.Bb7 (18.Ne5 Bc7+–) 18...Qc7 (18...Nc6 19.Ba6 (19.Qb5?! Nd4 20.Qb2 Ne2 21.Kh1 Qc7+=) 19...Bd4 20.ed4+– (20.Nd4?! Nd4 21.ed4 Qa5+=)) 19.Be4+– Rc8? (better 19...Nc6+–) 20.Ne5 Be8 21.Qb4 Bd7 22.c4! bc4? (22...Nc6 23.Bc6 Bc6 24.Nc6 Qc6 25.Qb5 g6 26.Qc6 Rc6+–) 23.Nd7 Qd7 1–0. Anonymous – Anonymous, lichess.org, 2020.

5.Nf3 Ne4 6.d3 Nd6 7.c4 dc4 (7...a6 8.a4+=) 8.dc4+– Ne4 (8...c6 9.a4+–) 9.Bd3 Nc5 (9...Bb4 10.Kf1 Nf6 11.Nc3+–) 10.Bc2 a6 11.a4 ab5 (11...Be7 12.0-0 0-0 13.Nc3+–) 12.ab5 (12.cb5 Be7+–) 12...Ra1 13.Ba1 c6 14.Nc3 cb5 (14...Qa5 15.0-0 cb5 16.Nb5 Bb5 17.cb5 Qb5 18.Ne5+=) 15.Nb5 Nc6 (15...Nba6 16.0-0 Nb4 17.Nd6 Bd6 18.Qd6 Nc2 19.Qc5 Na1 20.Ra1+–) 16.Bc3 f6 17.0-0 (17.Nh4 Ne5+–) 17...Be7 18.Qb1 g6 19.Ng5! 0-0?? (19...fg5 20.Bh8 Pinning (20.Bh8 Deflection)) 20.Bg6+– fg5 (20...Ne5 21.Bh7 Kh8+–) 21.Bh7 Kf7 22.Qg6 1–0. GuestJXBB – GuestWBHB, freechess.org, 2020.

5.Nf3 Be7 (---> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 Bd7).

5.f4 Ne4 6.Nf3 =.

5.f4 Be7 6.Nf3= 0-0 7.Be2 a6 (7...Qe8 8.Nc3=) 8.ba6 (8.a4 Qe8=) 8...Na6 (8...b5 9.Ne5+=) 9.Ne5 (9.Nc3 c5=) 9...Ba4 (9...b5 10.Nc3 b4 11.Nb1+=) 10.Nc3= Nc5 11.0-0 Nfd7 (11...Nfe4 12.Ne4 de4 13.d4 ed3 14.Nd3=) 12.d4 Ne5 13.fe5 Ne4 14.Bd3 (14.Ne4 de4 15.Qb1 Bg5=) 14...Nc3 15.Bc3 c5 16.dc5 Bc5 17.Rf3 (17.Bd4 Qc7=) 17...g6 (17...d4!? 18.Bd4 Bd4 19.ed4 Qd4 20.Rf2 Qe5–/+) 18.Bd4 (18.Qb1 d4 19.Bb4 Qc7+=) 18...b6 (18...Bd4 19.ed4 Qh4 20.Be2 Bc2 21.Qd2+=) 19.Rf4 (19.Rf2 Qh4 20.Rb1 Bc6=) 19...Qg5 (19...Qc7 20.Rf2=) 20.h4 (20.Qf3 Bc6=) 20...Qh6 (20...Qf4 21.ef4 Bd4 22.Kh2 Ba1 23.Qa1+=) 21.Qf3 Bc6 22.Kf2 Rab8 23.Rh1 Be7 24.Qh3 b5 25.Rf6? Qg7 26.h5+= Rbe8?? 27.hg6+– hg6 28.Ke2 Bd7 29.Bg6 fg6 30.Rg6! Qg6?? 31.Qh8 Kf7 32.Rh7 Qh7 33.Qh7# 1–0. Miralles,Giles – Vincent,F, Pegomas, 1980.

6.c3 Ba5 7.c4 0-0 (7...a6 8.Qf3=) 8.Nf3 (8.Qf3 Ne4=) 8...Ne4 (8...a6 9.Ne5=+) 9.Be2 (9.Qc2 c5=) 9...c6 (9...dc4 10.Qc2 Nd6 11.Na3=) 10.0-0 (10.cd5 ed5 11.0-0 Qe7=) 10...cb5 (10...dc4 11.Bc4 a6 12.Ne5=) 11.ab5 (11.d3 Nc5 12.ab5 dc4 13.dc4 Bb6+=) 11...dc4= 12.Bc4 (12.Qa4 Bc7+=) 12...Bb4 (12...Nd6 13.Bd3+=) 13.d3 (13.Qb3 Be7 14.d4+=) 13...Ng5 (13...Nd6 14.Qb3 Nc4 15.dc4+=) 14.Nbd2 (better 14.Ne5 Bc8 15.Qb3+–) 14...Qb6?? The isolani on b5 becomes a target (better 14...a5+=) 15.Ng5+– Bb5 (15...a5 16.Bd4 Qd8 17.Qh5+–) 16.Bb5 (better 16.Qh5 h6 17.Be6 Qe6 18.Ne6 fe6 19.Qb5 Bd2 20.Qb7+–) 16...Qb5 17.Nge4 (better 17.Nde4+–) 17...Qd3? (17...f5 18.Ng5 Qd7 19.Ndf3+–) 18.Rc1 (better 18.Qg4 f6 19.Nf6 Kf7 20.Nfe4+–) 18...Nc6 (18...Bd2 19.Qg4 e5 20.Be5 f6+–) 19.Qc2 (19.Qg4 e5 20.Qf5 Rfd8+–) 19...Qe2 (19...Rfd8 20.Nc4+=) 20.Qc4 (20.Bc3 a5+–) 20...Qh5 (20...Qc4!? 21.Nc4 Rfd8+–) 21.Ng3 Qh6 (21...Qg6 22.Nf3+–) 22.Nf3 Bd6 (22...a5 23.Rfd1+–) 23.Qg4 (23.Ne4 Be7+–) 23...Bc7 (23...a5 24.Rfd1 Rfd8 25.Nh5+–) 24.Nd4 Bd6? (24...f5 25.Qe2 Bg3 26.fg3+–) 25.Qe2 (25.Nc6 bc6 26.Rc6 Bg3 27.Qg3 Qg6 28.Qg6 hg6+–) 25...a5 (better 25...Nd4 26.Bd4 Qg6+–) 26.Rc5?? (better 26.Nc6 bc6 27.Nh5+–) 26...a4 (better 26...Bc5 27.Nc6 bc6–+) 27.Qb5 (27.Rc4 a3 28.Nc6 bc6+–) 27...Rfb8 (27...Na7 28.Qb6 Bc5 29.Qc5=+) 28.Rfc1 (better 28.Rh5 Qg6 29.f4+=) 28...Rc8?? (better 28...a3 29.Ba1 Nd4 30.Bd4 Bc5 31.Rc5 a2=) 29.Qa4?? (29.Qb7 Bc5 30.Nc6+– (worse 30.Rc5 Rcb8 31.Qc6 e5 32.Qh6 gh6+–)) 29...Nd4 (better 29...Ra4 30.Nc6 Bc5 31.Ne7 Be7 32.Rc8 Bf8 33.h3–+) 30.Qa6 (better 30.Rc8 Bf8 31.Qa8+–) 30...f6 (better 30...Bc5 31.Qd3 Nf5 32.Nf5 ef5 33.Qf5 Qe6–+) 31.h4 ½–½. DEFFM – GuestTGKT, freechess.org, 2016.

6.c3 Ba5 7.Nf3= 0-0 8.Be2 c6 9.0-0 c5 (9...Bc7 10.Ba3 Re8 11.d4=) 10.c4 Ne4 (10...Qe7 11.Ne5=) 11.d3 (11.d4 Bc8+=) 11...Nf6 (11...Nd6 12.Qc2+=) 12.Nbd2 (12.d4 Bb4+=) 12...Bd2 (12...Bb4 13.d4+=) 13.Nd2 a6 14.h3 (14.Bf3 Qe7+–) 14...ab5 (14...dc4 15.dc4 Qe7 16.Bf3+–) 15.ab5+– Ra1 16.Qa1 dc4 17.dc4 Qe7 (17...Bb5 18.Bf6 (18.cb5?! Qd2 19.Bf3 Nbd7+=) 18...gf6 19.Ne4+– (19.cb5?! Qd2 20.Bf3 b6+–)) 18.Nf3 (18.Be5 Be8+–) 18...Re8? (18...Bc8 19.Rd1 Nbd7 20.Ne5+–) 19.Bc3 (better 19.Qa7+–) 19...Bc8+– 20.Qb2 (20.Bf6 gf6 21.Qc3 e5+–) 20...Nbd7+= 21.Rd1 (21.Ne5 Ne4+=) 21...b6 (21...e5 22.Nd2+=) 22.Ne5+– Ne4 23.Nc6 (23.Nd7 Nc3 24.Qc3 Bd7+–) 23...Qg5 24.Be1 (better 24.f4 Qg3 25.Bf3+–) 24...Ndf6? (24...e5!?+=) 25.f4 (better 25.Qe5!? h6 26.Qc7+–) 25...Qg6+– 26.Ne5 Qf5?? (better 26...Qh6+–) 27.g4+– Ng4 28.hg4 (28.Ng4?! h5 29.Ne5 f6+–; worse 28.Bg4 Qf6 29.Bh5 Rd8 30.Bf7 Kf8+–) 28...Qf6 29.Bf3 Bb7 (29...Ng5 30.Bc6 Rf8 31.Bg3+–) 30.Rd7 Ba8 (30...Bd5 31.cd5 ed5 32.Qa2+–) 31.Rf7 (31.Qg2!? Rf8 32.Be4 Be4 33.Qe4 h6+–) 31...Qh6 32.Kg2 (32.Ra7 Qh3 33.Qa2 Nd2 34.Ra8 Nf3 35.Nf3 Qg4 36.Kf2 Qg6+–) 32...Rd8 (32...Nd6 33.Rd7 Bf3 34.Nf3+–) 33.g5 (better 33.Ra7 Rf8+–) 33...Ng5 34.fg5 Qg5 35.Ng4 (better 35.Bg3 Qe3 36.Rg7 Kg7 37.Ng4 Qd4 38.Be5 Kf7 39.Bd4 Rd4 40.Ne5 Kf6 41.Nc6+–) 35...Bf3?? (better 35...Qg4! 36.Kh2 Bf3–+) 36.Rf3+– h5? (36...Qg4 37.Rg3 Qe4 38.Kh2+–) 37.Kf2 (better 37.Rg3 hg4 38.Qe2+–) 37...hg4 38.Rg3 Rf8? (38...Qf5 39.Kg2 Qe4 40.Kf1 Qc4 41.Qe2 Rf8 42.Bf2 Qe2 43.Ke2 Kf7+=) 39.Ke2?? (better 39.Kg1+–) 39...Qf5= 40.Kd1?? (better 40.Qc3=) 40...Rd8–+ 41.Kc1 Qf1 (41...Qd3 42.Qc2 Qa3 43.Kb1 Rd3–+) 42.Qf2=+ Qc4 43.Qc2 Qb5 (43...Qf1 44.Qf2 Qd3 45.e4 Qd1 46.Kb2–/+) 44.Rg4=+ Qd7 (better 44...Qf1 45.Qf2 Qf2 46.Bf2 Rf8=+) 45.Bc3+– e5 46.Be5?? (better 46.Qa2 Qf7 47.Qf7 Kf7 48.Be5+–) 46...Qg4–+ 47.Bg7 (47.Bc7 Re8 48.Bf4–+) 47...Qg7 48.Qc4 Kh8 (better 48...Qf7 49.Qe2 c4–+) 49.Qh4= Qh7 50.Qd8 Qg8 51.Qh4 Qh7 52.Qd8 Kg7 53.Qe7 Kh8 (53...Kh6 54.Qh4 Kg6 55.Qe4 Kg7 56.Qb7 Kh8 57.Qb6 Qh1 58.Kb2=) 54.Qf8 Qg8 ½–½. DEFFM – GuestKFNP, freechess.org, 2016.

6.c3 Ba5 7.Nf3 a6=.

6.c3 Ba5 7.Nf3= c5 8.Be2=.

6.c3 Bd6 7.c4 dc4 8.Bc4 Qe7 9.Nf3 c6 (9...a6 10.Nc3=) 10.Nc3 (10.0-0 0-0=) 10...0-0 (10...e5 11.d4=) 11.0-0 (11.d3 e5=) 11...e5 (11...Rc8 12.d3=) 12.d4 e4 13.Nd2 Bg4 (13...cb5 14.Nb5 Bb5 15.ab5=) 14.Qc2+= The pressure on e4 grows 14...Nbd7 (14...Re8+=) 15.Be2?? (better 15.bc6 Nb6 16.Bb3 bc6 17.Nce4 Ne4 18.Qe4+–) 15...Be2=+ 16.Ne2 cb5 (16...Rac8 17.Nc3 Rfe8 18.Rfd1=) 17.ab5= Rfc8 (17...Rfe8 18.Rfd1=) 18.Qd1 (18.Nc3 Re8=) 18...Ng4=+ 19.g3 (19.h3 Ngf6=+) 19...Ngf6 (19...Qe6 20.Nc3 f5 21.Qb3 Qb3 22.Nb3=+) 20.Qb3 Nb6 21.Rfc1 (21.Nc3 Rd8=) 21...Bb4 (21...Rc1 22.Rc1 Nbd5 23.Nc3 Nc3 24.Bc3=+) 22.Nc3 (22.Rc8 Nc8 23.Bc3 Bd6=) 22...Bc3–/+ 23.Rc3. GuestXSBG – guestito, freechess.org, 2016.

6.Nf3 0-0 7.Be2 Ba5 8.0-0 Re8 9.Ne5+= c6 10.c4 dc4 11.Bc4 cb5 (11...Qb6 12.Bc3+=) 12.ab5 a6 (better 12...Bc8!?+=) 13.ba6+– (13.Nd7?! Nbd7 (13...Nfd7? 14.Qg4 e5 15.ba6+–) 14.ba6 ba6+=) 13...Na6 14.Nd7 Qd7? (better 14...Nd7 15.Qg4 e5 16.Ra5 Nf6 17.Bf7 Kf7 18.Qc4 Re6 19.Re5 Qd7+–) 15.Bf6 gf6 (15...Bd8 16.Bc3+–) 16.Ra5 Qc7 17.Qg4 Kh8 18.Rh5 Rg8 19.Qh4 Rg6 (19...Rg7+–) 20.Rh7 (20.Rh7 Kg8 21.Rh8 Kg7 22.Qh7) 1–0. GuestMSNF – GuestFSBM, freechess.org, 2019.

6.Nf3 0-0 7.Be2 Bd6 8.0-0 c6 (8...a6 9.Na3=) 9.c4 (9.Be5 Be5 10.Ne5 Qe8=) 9...Re8 (9...dc4 10.Na3=) 10.d4 (10.Be5 Qe7=) 10...dc4 11.Bc4 cb5 (11...a6 12.ba6 Na6 13.Ne5=) 12.ab5+= Ne4 (12...a6 13.Qe2+=) 13.Nbd2 (13.Bd3 f5 14.Nbd2+=) 13...f5 (13...Nd2!? 14.Qd2 Qe7+=) 14.Ne4+– fe4 15.Nd2 (15.Ne5 Qg5+–) 15...Qh4 (15...Qg5 16.h3+–) 16.g3+– Qg5 (16...Qe7 17.Ne4 Bb4 18.Qb3+–) 17.Ne4 Bc7 1–0. DEFFM – kimozo, freechess.org, 2018.

6.c4 c6 7.cd5 cd5 8.Nf3 Be7 9.Be2 0-0 10.0-0 Bc8 (10...a6 11.Nc3=) 11.d4 a6 12.Nbd2 ab5 (12...Nbd7 13.Bd3+=) 13.ab5+= Ra1 14.Qa1 Bb7? (14...Nbd7 15.Ba3+=) 15.Rc1?? (better 15.Qa7 Bc6 16.bc6 Nc6 17.Qa4+–) 15...Nbd7+= 16.Bd3 Qa8 17.Qa8 Ba8 (17...Ra8 18.Rc7 Bc8 19.Ne5+=) 18.Rc7 Bd8 (18...Bd6!? 19.Ra7 Rc8+–) 19.Ra7+– Be7 20.Ne5 Rc8 1–0. GuestZVTQ – GuestLDBM, freechess.org, 2018.

6.Nf3 Bb4 7.Be2 h6 (7...a6 8.0-0=) 8.0-0 0-0 9.Ne5 (9.Bc3 Bc3 10.Nc3 a6=) 9...Bd6 (9...a6 10.Nd7 Nfd7 11.c4 dc4 12.Bc4 ab5 13.ab5 Ra1 14.Ba1+=) 10.d4 c5 11.c4 Qc7 12.f4 Be5 (better 12...a6=) 13.de5+– Ne4 14.cd5 ed5?? (better 14...Qb7 15.d6 a6+–) 15.Qd5 Bc8 (15...Na6 16.Qe4 (worse 16.ba6 Bc6 17.Qc4 Rad8+–) 16...Nb4 17.f5+–) 16.Qa8 Bb7 (16...Qb7 17.Qb7 Bb7 18.Nc3 Nc3 19.Bc3+–) 17.Qa7 Rd8 (17...Nd7 18.Rd1 Ra8 19.Rd7 Qd7 20.Qb6+–) 18.Bf3 White intends a5 18...Rd7 (18...Qc8 19.Qb6 Rd3 20.Nc3 Nc3 21.Bb7+–) 19.a5 (19.e6 fe6 20.Be5 Nd6+–) 19...Qd8 (19...ba5 20.e6 fe6 21.Be5+–) 20.ab6 (20.Bg4 Re7 21.Rd1 Qf8 22.Qb6 Ba8+–) 20...c4 (20...Re7 21.Rd1 Qe8 22.f5+–) 21.e6! fe6 22.Be5 Bd5 (22...Nd6 23.Bd6 Rd6 24.Qb7 Rb6 25.Qe4+–) 23.Qb8 Qb8 24.Bb8 Rb7 25.Bc7 c3 26.Be4 Be4 27.Nc3 (27.Nc3 Bd3 28.Rfd1+–) 1–0. DEFFM – GuestKSNK, freechess.org, 2018.

6.Nf3 Bd6 7.c4 dc4 (7...0-0 8.Ne5=) 8.Bc4 Qe7 (8...a6 9.Nc3=) 9.0-0 Ne4 (9...a6!?+=) 10.d3 (10.Bg7 Rg8 11.Bb2 a6+-) 10...Ng5 (10...Nf6!?+-) 11.Ne5 Be5 12.Be5 Bc8 (12...a6 13.Nd2 (13.Bc7?! ab5 14.Ba2 f6+-) 13...Ra7 14.Bg7+-) 13.h4 f6 14.hg5 (better 14.Bg3!? a6 15.hg5 ab5 16.Bb5 c6 17.gf6 gf6 18.Qf3+-) 14...fe5 15.Qf3 c6 16.bc6 Rf8 17.Qe4 Qc7 18.Qh7 Nc6 19.Qg6 (19.Rc1 Qd7+-) 19...Qf7+- 20.Qe4 Bb7 21.Bb5 Qc7 22.Nc3 a6 (22...Kd8 23.Qg6+-) 23.Qg6+- Kd8 (23...Qf7 24.Qf7 Kf7 25.Bc4+-) 24.Bc6 Bc6 25.Rac1 (25.Qe6!? Re8 26.Qb3+-) 25...Qf7 26.Qh7 Kd7 27.g6 Qf6 (27...Qe7 28.Qh5 Rf5 29.Qh2+=) 28.Ne4 Be4 29.de4 Rh8?? (better 29...Rac8 30.Rc8 Rc8+-) 30.Rfd1 Ke7 31.Rc7 Ke8 32.Qh8 Qf8 33.Qf8 (33.Qh3 Qe7 34.Rdd7 Qd7 35.Qh8 Ke7 36.Qg7 Ke8 37.Qd7 Kf8 38.Qf7) 33...Kf8+- 34.Rdd7 Ke8 35.Rg7 Kf8 (35...Kd8 36.Rcf7 Rc8 37.Rg8) 36.Rh7 (36.Rcf7 Ke8 37.Rg8) 36...Kg8+- 37.Rb7 Rc8 38.Rhc7 (38.Rb6 Ra8+-) 38...Rd8 39.g3 Rd1 40.Kg2 Rd8 41.Rb6 Re8 42.Ra6 Kh8 43.Raa7 Kg8 44.a5 Kf8 (44...Rb8 45.a6 Rd8 46.Rab7 Kf8 47.a7 Ke8 48.Rh7 Rd7 49.a8Q Rd8 50.Rh8) 45.a6 (45.Rg7 Rc8 46.Raf7 Ke8 47.Rg8) 45...Rb8 (45...Kg8 46.Rg7 Kh8 47.Rh7 Kg8 48.Rag7 Kf8 49.a7 Ra8 50.Rb7 Kg8 51.Rb8 Rb8 52.ab8Q) 46.Rab7 (46.Rg7 Rb7 47.Rgb7 Ke8 48.Rb8) 46...Rd8 (46...Re8 47.a7 Rd8 48.Rf7 Kg8 49.Rb8 Rb8 50.ab8Q) 47.a7 Ke8 48.Rb8 Kf8 (48...Rb8 49.ab8Q) 49.Rd8 1-0. KLINGON09 (1795) - ariescxo (1835), lichess.org, 2020.

6.Nf3 Be7 7.c4 0-0 8.Ne5 (8.Nc3 Bc8+=) 8...Be8 9.f4 Ne4 10.Nc3 f6 11.Ne4 (11.Nf3 Nc3 12.Bc3 Nd7=) 11...de4 12.Ng4 c5 (12...Nd7 13.Be2=+) 13.Be2 (13.Qc2 Bg6=) 13...Bg6 (13...Nd7 14.Qc2 f5 15.Qc3 Bh4 16.g3=) 14.0-0 Nd7 15.d4 (15.Qc2 Qc7+=) 15...f5 (15...h5 16.Nf2 cd4 17.ed4+=) 16.Ne5 Ne5 17.fe5 Qc7 (better 17...cd4!? 18.ed4 a5=) 18.d5+– ed5 (better 18...Bg5!? 19.Qd2 a5+–) 19.cd5+– Bg5 20.Qb3 (20.Qd2 Rad8+–) 20...Kh8 (20...c4 21.Bc4 Be3 22.Qe3 Qc4 23.d6+–) 21.d6 Qd8 (21...Qd7!? 22.Bc4 Rae8 23.a5+–) 22.Bc4 (22.Rad1 f4 23.ef4 Rf4 24.Rf4 Bf4+–) 22...f4 23.ef4 (better 23.Bd5!? Rb8 24.h4+–) 23...Bf4+– 24.g3 (24.Bd5!? Rb8 25.Rfe1+–) 24...Qg5+= 25.Bc1 (25.h4 Qg3 26.Qg3 Bg3 27.Kg2 Bh4 28.e6+–) 25...e3?? (better 25...Bc1 26.Rac1 Qe5–/+) 26.Rf4!+– Rf4 27.Be3 (better 27.Qe3 Raf8 28.d7+–) 27...Qe5–+ 28.Rd1?? (28.Bf4 Qa1 29.Bf1 Qd4 30.Qe3 Qa4–+) 28...Re4 (better 28...Rc4 29.d7 Rd8–+) 29.Bf4–/+ Re1?? (29...Qh5 30.Rf1 Rd4–/+) 30.Re1 (better 30.Kf2 Rf8 31.Re1 Qd4 32.Re3 Qd6 33.Qc3+–) 30...Qe1–+ 31.Kg2? (31.Bf1 Bf5 32.Bg5 Bh3–+) 31...Be4 (31...Re8 32.d7 Be4 33.Kh3 Bf5 34.Kg2 Bd7 35.Qf3–+) 32.Kh3 Qb1?? (better 32...Re8 33.Bd3 Bd3 34.Qd3 Qe6 35.Kg2 c4–+) 33.Qb1= Bb1 34.Bd5 (34.Be6!?=) 34...Rf8=+ 35.d7?? (better 35.Kg2=+) 35...Bf5–+ 36.Kg2 (36.g4 Bd7 37.Kg3 Re8–+) 36…Bd7 0–1. GuestTTRM – GuestWPPX, freechess.org, 2019.

6.c4 Bd6 7.Nf3 dc4 8.Be2 (8.Bc4 a6=) 8...c3 (8...a6!? 9.Nc3 c6 10.Bc4 cb5 11.ab5 0-0=) 9.Nc3= c6 10.0-0 cb5 11.ab5 0-0 12.d4 a6 13.Ne5 ab5?? (better 13...Qc7+=) 14.Ra8+- Be5 (14...b4 15.Nd7 Qd7+-) 15.de5 Nd5 (15...b4 16.ef6 bc3 17.Bc3+-) 16.Nd5 ed5 17.Qd5 (17.Ba3 b4 18.Bb4 Re8+-) 17...b6 (17...Bc6 18.Qd8 Rd8 19.e6+-) 18.Bb5 (better 18.e6 fe6 19.Qe5 Qf6 20.Qb8 Rb8 21.Rb8 Qf8 22.Rf8 Kf8+-) 18...Bb5 19.Qb5 Qc7 20.Bd4 Nd7 (20...Qc6 21.Qc6 Nc6 22.Rfa1+-) 21.Rf8 (better 21.Rfa1!? Nb8 22.e6 Rc8 23.ef7 Qf7+-) 21...Kf8 22.h3 Ke8 23.e6! fe6 24.Bg7 Ke7 (24...Qc2 25.Bd4+-) 25.Bd4 (better 25.Qg5 Ke8+-) 25...Qc8 (25...e5 26.Bb2 Qd6 27.Ra1+-) 26.Qb4 (26.Qg5 Kd6 27.Rd1 Qe8+-) 26...Nc5 (26...Ke8+-) 27.Rc1 Kd6 28.Bc5 (better 28.Qb6 Ke7+-) 28...bc5 29.Rd1 Ke7 30.Rc1 (30.Qh4 Kf7 31.Qh7 Kf6 32.e4 Qc7 33.Qc7 Kg6 34.Qe5 Kf7 35.Rd7 Kg6 36.Rg7 Kh6 37.Qg5) 30...cb4?? (30...Kd6 31.Qb6 Ke7 32.Rc5 Qd7+-) 31.Rc8+- Kd7 32.Rb8 Kc7 (32...Ke7 33.Rb7 Kd6 34.Rh7+-) 33.Rb4 Kc6 34.Rh4 Kc5 35.Rh7 Kd6 36.Rh4 Kd5 37.Rg4 Kd6 38.f3 Kd5 39.e4 Kd6 40.Kf2 Ke5 41.Ke3 Kd6 42.Rg5 (42.h4 Kc7 43.h5 Kc6 44.h6 Kb7 45.Rg7 Kc6 46.h7 Kb5 47.h8Q Kb6 48.Qb8 Kc6 49.Rb7 Kc5 50.Qc7) 42...Ke7 43.Kd4 Kd6 44.h4 Ke7 45.Ke5 Kf7 46.h5 Ke7 47.Rg7 Kf8 (47...Kd8 48.h6 Ke8 49.h7 Kf8 50.h8Q) 48.h6 Ke8 49.Kd6 (49.h7 Kf8 50.h8Q) 49...Kf8 (49...e5 50.h7 Kf8 51.h8Q) 50.Ke6 Ke8 51.Rg8 1-0. BeepBeepImAJeep (2485) - mukii222 (1715), lichess.org, 2017.

6.Nf3 0-0 7.Be2 c6 8.0-0 cb5 (8...a6 9.d4 Be7 10.Ba3=) 9.ab5+= b6 (9...Qe7 10.Nc3 a6 11.Na4 Bb5 12.Nc5 Be2 13.Qe2 Qc5 14.Ba3 Qc2 15.Bf8 Kf8 16.Rfc1+–) 10.Ne5 (10.Be5 Ne4+=) 10...Bc8 (10...Qc7 11.f4+=) 11.d4 Bd6 12.c4 (12.Ba3 a6+=) 12...Nbd7 (12...Bb7 13.Ba3+=) 13.Nc6 (13.f4 Qc7+=) 13...Qc7 14.g3 (14.cd5 ed5 (worse 14...Nd5 15.e4+–) 15.h3 Nb8 16.Nb8 Qb8+=) 14...Bb7 (14...dc4!? 15.Qa4 a6 16.Qc4 Kh8+=) 15.cd5+– Nd5 16.e4 (16.Ra7?! Ra7 17.Na7 Ra8=) 16...Bc6 (better 16...Nb4!? 17.e5 Nc6 18.ed6 Qd6 19.bc6 Qc6+–) 17.bc6+– Qc6 18.ed5 Qd5 (18...ed5 19.Qb3 Nf6 20.Nc3+–) 19.Nc3 Qg5 (19...Qf5 20.Bf3 Rac8 21.Ra7+–) 20.Bf3 (20.Ne4 Qe7 21.Nd6 Qd6+–) 20...Rac8 (20...Rad8 21.Ra7 Bb8 22.Rb7+–) 21.Ne4 Qe7 22.Ra7 (22.Nd6 Qd6 23.Ba3 Qc7+–) 22...Nf6 (22...Bb8 23.Ra6 Rfe8+–) 23.Re7 (23.Re7 Be7 24.Nf6 Bf6 25.Qb3+–) 1–0. DEFFM – Mohamedemam, freechess.org, 2018.

6.Nf3 Be7 7.Be2 a6 (7...0-0 8.0-0=) 8.c4 (8.0-0 0-0=) 8...0-0 (8...dc4 9.Bc4 c6 10.ba6 Na6 11.0-0=) 9.0-0 Ne4 (9...dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1=) 10.d3+= Nc5 11.d4 (11.Nbd2 dc4 12.Nc4 ab5 13.ab5 Ra1 14.Qa1 Nb3+=) 11...Ne4 12.Nbd2 g5 (12...ab5!? 13.cb5 Nf6+=) 13.Ne5 (13.Ne4 de4 14.Nd2 f5+–) 13...f6 (13...Nd2 14.Qd2 (14.Nd7?! Nf1 15.Nf8 Ne3 16.fe3 Bf8=) 14...Bc8 15.c5+–) 14.Nd7+– Qd7 (14...Nd7 15.Ne4 de4 16.c5+–) 15.cd5 ed5 16.Ne4 de4 17.Qb3 (17.ba6 b6+–) 17...Kh8 18.ba6 b6 (18...ba6 19.f3+–) 19.a5 Na6 (19...ba5 20.Ra5 Nc6 21.Qa4+–) 20.ab6 Nb4 21.Ra7 (21.Ra8 Ra8 22.Ba3 Nd3+–) 21...Ra7 22.ba7 c5? (22...Ra8 23.Qf7 Nd5+–) 23.dc5 Bc5 (23...Nd3 24.Ra1 Ra8 25.Qb8 Qd8 26.Qd8 Bd8+–) 24.a8Q! (24.a8Q Qe7 25.Qa5+–) 1–0. DEFFM – GuestVYLR, freechess.org, 2018.

6.c4 0-0 7.Nf3 dc4 8.Bc4 c6 9.Be2 cb5 10.ab5 b6 11.Nc3 Qc7 12.0-0 Be5?? (12...Rc8 13.Qb1 Bb4 14.Bd3+-) 13.Rc1 (better 13.Ne5 Qe5 14.Bf3 Bb5 15.Nb5 Qb5 16.Bf6+- (16.Ba8?! Qb2 17.Ra7 Rd8+-)) 13...Bc3+/- 14.Bc3 Qb7 (14...Qd8 15.Be5+/-) 15.Ne5 (15.Bf6 gf6 16.Qa4 a6+-) 15...Rd8? (15...Nd5 16.Qb3+=) 16.Bf3 (better 16.Nf7 Kf7 17.Bf6 Kf6 18.Bf3+-) 16...Qc7?? (16...Nd5 17.Qb3 a6 18.ba6 Qa6 19.Bd5 Ba4+/-) 17.Nd7+- Qd7 18.Ba8 Qb5 19.Bf6 gf6 20.d4 Nd7 (20...Qf5 21.Qb3 Nd7 22.Bf3+-) 21.Bc6 Qg5 22.Bd7 (better 22.Qa4 Nb8 23.Qa7 Nc6 24.Qb6 f5 25.Rc6 Qf6+-) 22...Rd7 23.Rc8 Kg7 24.h3 Rd5 (24...Qf5 25.Qa4 e5 26.e4+-) 25.Qg4 (better 25.Qa4!? b5 26.Qa7 f5+-) 25...h6 (25...Qg4 26.hg4 Rb5 27.e4+-) 26.Qg5 (26.Qd1 Ra5+-) 26...Rg5 (26...hg5 27.Ra1 a5 28.Rb1+-) 27.Ra8 Ra5 28.Rb1 Ra6 (28...Kg6 29.Rc1 f5 30.Rc7 Ra1 31.Kh2+-) 29.Rc1 (29.e4 f5 30.ef5 Kf6 31.fe6 Ke6+-) 29...Ra4 (29...b5 30.Rc7 Ra1 31.Kh2+-) 30.Rcc8 b5 (30...f5 31.Rcb8+-) 31.Kh2 (better 31.Rg8 Kh7 32.Rh8 Kg6 33.Rag8 Kf5 34.f3 Rd4 35.ed4+-) 31...Rb4 (31...f5 32.Rc7 a6 33.Raa7+-) 32.Rcb8 (32.Rg8 Kh7+-) 32...Rb2 33.Ra7 (33.Kg3 Ra2 34.Rb5 f5+-) 33...Rf2 34.Rab7 (34.Rb5!? Re2+-) 34...Re2 35.Rb5 Re3 36.R5b7 (36.g4 Re2 37.Kg3 Re3 38.Kg2 Re2 39.Kf3 Rd2+-) 36...Re4 37.Rc8 (37.Rd8!? f5+-) 37...Rd4 38.Rcc7 Rf4 (38...Kg6 39.Rf7 f5 40.Rg7 Kf6 41.Rbf7 Ke5 42.Rg6+-) 39.Rf7 Kg6 40.Rg7 Kf5 41.Rg4! Ke5 (41...Rg4 42.hg4 Combination) 42.Rf4 (better 42.Rb5 Ke4 43.Rb4 Kd5 44.Rgf4+-) 42...Kf4 43.Rh7 Ke5 (43...Kg5 44.Rg7 Kf4 45.Rg6+-) 44.Rh6 f5 45.Rh5 (45.h4 f4+-) 45...Ke4 (45...Kf4 46.g3 Ke4 47.h4+-) 46.g4 f4 (46...fg4 47.hg4 Kf4+-) 47.Rh6 f3 48.Re6 Kd3 49.Re8 f2 If Black now only could play g5... 50.Rf8 Kd2 White now must not overlook the idea g5 51.Rf2 Kd1 52.Rg2 Kc1 (52...Ke1 53.h4 Kd1 54.h5 Kc1 55.h6 Kd1 56.h7 Ke1 57.h8Q Kd1 58.Qa1) 53.Kg3 (53.h4 Kb1 54.h5 Kc1 55.h6 Kd1 56.h7 Ke1 57.h8Q Kd1 58.Qa1) 53...Kd1 (53...Kb1 54.g5 Kc1 55.g6 Kd1 56.g7 Ke1 57.g8Q Kf1 58.Qc4 Ke1 59.Qe2) 54.h4 Kc1 (54...Ke1 55.h5 Kd1 56.h6 Kc1 57.h7 Kd1 58.h8Q Ke1 59.Qa1) 55.h5 Kd1 56.h6 Kc1 57.h7 Kd1 58.h8Q Kc1 (58...Ke1 59.Qa1) 59.Qh1 (59.Qa1) 1-0. BeepBeepImAJeep (2625) - DraganStankovic002 (2190), lichess.org, 2018.

6.c4 dc4 7.Bc4 0-0 8.Nf3 c6 9.Nc3 cb5 10.ab5 b6 11.Be2 Be7 12.Nd4+= Bc8? (better 12...e5!? 13.Nf3 Bd6+=) 13.Bf3+- Nd5 14.Nd5 (14.Nf5! Bb4 15.Ng7+-) 14...ed5+/- 15.Qb3 Bb7 16.0-0 Bf6 17.Rfc1 Nd7 18.Nc6 (18.Bd5 Bd5 19.Qd5 Nc5+/-) 18...Bc6 19.bc6 (better 19.Bf6!? Nf6 20.bc6+/-) 19...Nc5= 20.Rc5 bc5 21.Bf6 Qf6 22.Ra6? (22.Rc1 Qc6 23.Bd5 c4 24.Bc4 Qd7=+) 22...Rac8?? (better 22...Rfb8 23.Qd1 Rb6-+) 23.Bd5= Rfd8 (23...Rb8 24.Qd3=) 24.g3 (24.Ra7 Ra8 25.Ra8 Ra8+/-) 24...Qd6 25.e4 Kh8 (25...Rc7!?+=) 26.Ra7+/- Rc6? (better 26...f5!? 27.Qc3 Rc7 28.Rc7 Qc7 29.Qc5 Re8+-) 27.Bc6 Qc6 28.Qf7 Qg6 (28...Rg8 29.Qd5 Qd5 30.ed5+-) 29.Qg6 hg6 30.Rc7 Rd2 31.Rc5 Kh7 32.Kg2 Re2 33.Kf3 Ra2 34.h4 Rb2 35.Rd5 Rc2 36.Rd3 Rb2 37.Re3 (37.e5 Rb7+-) 37...Rc2 (37...g5 38.hg5 Kg6 39.Re2+-) 38.e5 Rc7 (38...Kg8 39.Rb3+-) 39.e6 Re7 40.Kg4 Kh6 41.f4 Re8 42.e7 Kh7 43.Kg5 Kg8 (43...Rb8+-) 44.Kg6 Kh8 45.Kf7 (45.Rd3 Kg8 46.Rd8 Rd8 47.ed8Q) 45...Ra8 (45...Kh7 46.Ke8 Kg6 47.Kd7 Kh7 48.e8Q Kh6 49.Re6 Kh7 50.Qh5 Kg8 51.Re8) 46.e8Q Re8 47.Re8 Kh7 48.g4 g6 (48...g5 49.Rg8 gf4 50.Rg5 f3 51.Rh5) 49.Kf6 (49.f5 g5 50.h5 Kh6 51.Rh8) 49...g5 50.Re7 Kg8 51.fg5 Kf8 (51...Kh8 52.Kg6 Kg8 53.Re8) 52.g6 Kg8 53.Re8 1-0. BeepBeepImAJeep - hernanparra85 (1815), lichess.org, 2018.

6.c4 dc4 7.Bc4 0-0 8.Nf3 c6 9.Nc3 c5 10.0-0 a6 11.d4 ab5 12.ab5 Ra1 13.Qa1 cd4 14.Nd4 (14.ed4 Qc7 15.Bd3=) 14...Be5 (better 14...Qc7!? 15.Be2 Bh2 16.Kh1 Bd6-/+) 15.Be2 (15.Nf3 Bd6+/-) 15...Qc7 (15...Bd6 16.Bd3+=) 16.Nf3 Bd6 17.Rc1 Qb6 (17...Qd8 18.Na4+/-) 18.Na4 Qa7? (better 18...Qd8!?+/-) 19.Bd4 Qa5 20.Bf6 gf6 21.Qf6 Qa4 (better 21...Rc8 22.Rc8 Bc8+-) 22.Rc4 Be7 23.Qe7 (23.Ra4 Bf6 24.Ra7 Bc8-+) 23...Qa1 24.Bf1 Bb5 (24...Re8 25.Rg4 Kh8 26.Qf7 b6 27.Nd4 Qf1 28.Kf1 Bb5 29.Nb5 Rd8 30.Qf6) 25.Qg5 (better 25.Rg4 Qg7 26.Rg7 (26.Bb5 Qg4 27.Bd3 Qg7=+) 26...Kg7 27.Bb5+-) 25...Kh8 26.Qb5 Nc6 27.Qb7 Na5 (27...Ne5 28.Rc7 Nf3 29.Qf3 Kg7+-) 28.Qa7 Nb3 29.Qa1 (better 29.Qe7 Qg7 30.Rg4 Qg4 31.Qf8 Qg8+-) 29...Na1 30.Nd2 (30.Rc7!? Kg8+-) 30...Rd8 31.Rc1 (31.Ne4 Kg7+-) 31...Rd2 32.Ra1 Kg7 33.g3 Kg6 34.Ra4 f5 (34...h6 35.Rd4 Rb2 36.Kg2+-) 35.Kg2 (35.Ra6 Kg7+-) 35...Kg5 (35...Rd6 36.Rd4 Rb6 37.g4 fg4 38.Rg4 Kf7 39.f4+-) 36.h4 (36.Ra6 e5 37.h4 Kg4+-) 36...Kg6 (36...Kf6 37.Ra6 Rc2 38.Kf3+-) 37.Bc4 (37.Ra6 Kg7+-) 37...e5 (37...Rd6 38.Bb5 e5 39.Ra7+-) 38.Ra6 Kg7 39.Be6 (39.h5 f4 40.h6 Kf8 41.gf4 ef4+-) 39...f4 40.ef4 ef4 41.g4 h5 42.g5 Rd8 (42...Kf8 43.Ra4 Ke7 44.Re4+-) 43.Bf5 (43.Ra7 Kg6+-) 43...Rf8 44.Be4 Kg8 (44...Rd8 45.Ra7 Kf8 46.Kf3+-) 45.Kf3 Kh8 (45...Rb8 46.Kf4 Rf8 47.Ke3+-) 46.Rh6 Kg8 47.Rh5 Kg7 (47...Kf7 48.g6 Kf6 49.Rf5 Kg7 50.Rf8 Kf8 51.Kf4 Kg8 52.h5 Kg7 53.Kg5 Kf8 54.Kf6 Ke8 55.g7 Kd8 56.g8Q Kc7 57.Qe6 Kd8 58.Qb6 Ke8 59.Bc6 Kf8 60.Qd8) 48.Rh7 Kg8 49.Rh6 (49.g6 Rd8 50.Rb7 Rd1 51.h5 Rg1 52.h6 Kf8 53.h7 Rg6 54.h8Q Rg8 55.Qf6 Ke8 56.Qe7) 49...Kg7 50.Rc6 Rd8 (50...Rb8+-) 51.h5 Rh8 52.Kg4 (better 52.h6 Kf7 53.g6 Ke7+-) 52...Kf8 53.Rc8 Kg7 54.h6 Kf7 55.Rh8 f3 (55...Ke6 56.g6 Ke7 57.g7 Ke6 58.g8Q Ke5 59.Qd5 Kf6 60.Qd6 Kf7 61.Bd5) 56.Bf5 (56.g6 Ke6 57.g7 Ke7 58.g8Q Kf6 59.Qg5 Ke6 60.Re8 Kf7 61.Qe7) 56...Ke7 57.g6 (57.h7 Kd6 58.Rc8 Kd5 59.h8Q Kd6 60.Qd4 Ke7 61.Qd7) 57...Kf6 (57...Kd6 58.Rc8 Kd5 59.g7 Ke5 60.Rd8 Kf6 61.g8Q Ke5 62.Qe6) 58.Rf8 (58.Rd8 Ke7 59.Rd7 Kf6 60.h7 Ke5 61.h8Q) 58...Ke7 59.Rf7 Ke8 (59...Kd6 60.h7 Kc6 61.g7 Kd5 62.g8Q Kc5 63.Qc8 Kb4 64.Rb7 Ka4 65.Qa8) 60.h7 Kd8 61.h8Q 1-0. BeepBeepImAJeep - AuRaseARS (1875), lichess.org, 2017.

6.c4 Qe7 7.cd5 ed5=+ 8.Nf3 Bb4 9.Be2 Ne4 (9...0-0 10.Qc2 c5 11.Nc3=) 10.0-0 Bg4 (10...0-0!?=) 11.Bg7+- Rg8 12.Bb2 Bf3 (12...Bh3 13.Ne1+-) 13.Bf3 Ng5? (better 13...Bd6!? 14.Qe2 Nd7+-) 14.Bd5+- Bd6?? (14...c6 15.Bb3 Qe4+-) 15.Bb7 Nh3 16.Kh1 Bh2 (16...Ng5 17.Ba8 Ne6 18.Nc3+-) 17.Kh2 Ng5 (17...Qd6 18.g3 Nd7 19.Ba8 Nf2 20.Qf3 (worse 20.Rf2 Qg3 21.Kh1 Qf2 22.Qg4 Rg4 23.b6 Rg1) 20...Ng4 21.Kg2+-) 18.Ba8 Qe5 19.Be5 Nh3 20.gh3 Rg2 21.Kg2 (21.Kg2 Nd7 22.Qh5 Ke7 23.Bd5 Ne5 24.Qe5 Kf8 25.Qf6 Ke8 26.Bf7 Kf8 27.Bd5 Ke8 28.Bc6) 1-0. AleksandrNekhoroshik – IAIE, lichess.org, 2020.

6.c4 Qe7 7.Nf3 dc4 8.Bc4 c6 9.0-0 cb5 10.ab5 a6 (10...0-0 11.d3=) 11.d4 ab5 (11...0-0 12.Ne5+=) 12.Ra8+/- bc4 13.Ne5 0-0? (better 13...b5!?+=) 14.Nc4+- Bb4 15.Nbd2 (15.Ba3 Bb5 16.Qd3 Nc6 17.Rf8 Qf8 18.Bb4 Bc4 19.Qc4 Qb4 20.Qb4 Nb4+-) 15...Bc6+/- 16.Ne5 Bd5 17.Ndf3 Ne4 18.Nd3 b5 19.Ra1 Bd6 20.Nfe5 Qc7 (20...f6 21.Nf4+-) 21.Nf4 (21.f3 Nf6+-) 21...Be5 22.de5 Bc4 23.Rc1 (23.Re1 Rd8 24.Qf3 Nc5+-) 23...Qb6 (23...Nc6!? 24.Re1 Rd8+/-) 24.Re1 Rd8 25.Qg4 Rd2? (better 25...Nf2 26.Kf2 Rd2 27.Re2 Be2 28.Ne2 Qd8+-) 26.Bd4?? (26.Nh5 g6 27.Bd4 Qd8 28.Qe4 gh5+-) 26...Qd8? (better 26...Nf2 27.Qg3 Qc7+/-) 27.Nh5+- g6 28.Qe4 gh5 29.Rcd1 Rd1 30.Rd1 Nd7 (30...Kg7 31.Qb7+-) 31.Qf4 Qc7 (31...Nf8 32.Qh6+-) 32.h3 Bd5 33.e4 Qc2 (33...Bc6+-) 34.Rc1 (better 34.Qg5 Kh8 35.Rc1 Be4 36.Rc2 Bc2 37.Qd8 Kg7 38.Qd7+-) 34...Qe4 35.Qe4 Kf8?? (better 35...Be4 36.Rc7 Nf8+-) 36.Qh7 (36.Rc8 Kg7 37.Qe3 Be4 38.Qg5 Bg6 39.Qf6 Nf6 40.ef6 Kh6 41.Be3) 36...Be4 (36...Ke7 37.Rc7 Bf3 38.Qg8 Bg2 39.Bc5) 37.Rc8 (37.Rc8 Ke7 38.Qg8 Nf8 39.Qf8 Kd7 40.Qd8) 1-0. BeepBeepImAJeep (2635) - gaurav_t (1865), lichess.org, 2016.

6.Nf3 a6 7.Ba3 =.

6.Nf3 a6 7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 0-0 11.0-0 Qe8 (11...Qe7!?=) 12.Bf6+– gf6 13.Nc3 Kh8 14.Qa1 (better 14.d4+–) 14...c6? (better 14...e5+=) 15.Ne4+– Be5 (15...Qe7 16.Nd6 cb5 17.Nb5+–) 16.Ne5 fe5 (16...Qe7 17.Ng4 e5 18.Ngf6 cb5 19.Be2+–) 17.Qe5 Kg8 (17...f6 18.Nf6 Rf6 19.Qf6 Kg8+–) 18.Nf6 (18.Nf6 Kh8 19.Qh5 Kg7 20.Qg5 Kh8 21.Qh6 cb5 22.Qh7) 1–0. DEFFM – guestanon, freechess.org, 2017.

6.Nf3 c5 7.c4 0-0 8.Be2 Qc7 9.Bf6+= gf6 10.Nc3 dc4 11.Bc4 Be5 (11...Rd8!?+=) 12.Ne5+/- Qe5 13.f4 Qf5 14.0-0 Kh8 (14...a6 15.Qe2 Qg6 16.f5+-) 15.d4 cd4 16.Qd4 Rg8 17.Ne4 Rg6 18.Rf2 Be8? (18...Rh6+-) 19.Nd6 e5 20.fe5 (20.Nf5?! ed4 21.ed4 a6+-) 20...fe5 21.Qd5 (21.Nf5?! ed4 22.Nd4 a6 23.Bf7 Bf7 24.Rf7 ab5 25.Nb5 Rg7 26.Rf8 Rg8+-; 21.Rf5 ed4 22.Ne8 Nd7 23.Rf7 Re8 24.Rd7 Rg7 25.Rg7 Kg7 26.ed4 h5+-) 21...Qg5 22.Ne8 Qe3 (22...Nc6 23.Qf7 Ne7 24.Qf8 Ng8+-) 23.Qf7 Nd7 24.Qd7 (24.Qd7 Qc5 25.Raf1+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.Nf3 c6 7.c4 a6=+ 8.Qb3 0-0 9.Nc3 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 cb5 (12...e5 13.d3=) 13.Nb5 Be7 14.Nbd4 Nc6 15.Nc6 (15.Qb7 Na5 16.Qa6 Bc8+= (16...Nc4?! 17.Qc4 Qb6 18.0-0=)) 15...Bc6 16.0-0 Ne4 (16...Bf3 17.gf3 Qd2 18.Rd1=) 17.d4 Bd6 18.Rd1 Qe8 19.Qb1 Qe7 20.Bd3 f5 21.Bc4 Nf6 (21...Bd5 22.Bd5 ed5 23.Qb5=) 22.Qb3 (22.Qf5 Bd5 23.Bd5 ed5+/–) 22...Nd5 23.Bb2 Qe8 24.Ra1 Qg6 25.Ba3 Ba3 (25...b5!? 26.Bb5 Bh2 27.Kh2 Rb8=) 26.Ra3 Nc7 27.Ne1 (27.Be2 b5+=) 27...f4 28.f3 (28.Bd3 Be4+=) 28...fe3= 29.Qe3 Nd5 30.Qe4 Qh6 31.Bd5 Bd5 32.Qc2 (32.Qe5 b5=) 32...Qf4=+ 33.Qc3 Qf6 (33...b5 34.Ra7=+) 34.Nc2 (34.Qb2 Qg5=) 34...Qg6 35.Ne1 Qf6 (35...b5 36.Qb4=) 36.Nc2 (36.Nd3 b5=) 36…Qg6 (36...Qf5 37.Ra5=) ½–½. Labahn,Wolfgang – Wolf,Heinrich, GER, 1990.

6.Nf3 c6 7.Be5 Qc7 8.d4 Qa5 9.Nbd2 Be5 10.Ne5 a6 11.ba6 Na6 =.

6.Nf3 h6 7.c4 c6 8.Qc2 cb5 9.ab5 dc4 10.Bc4 0-0 11.0-0 Qe7 12.d3 Rc8 13.Qb3 Be8 14.Nc3 Nbd7 15.d4 Nb6 16.Bd3 Rc7 17.Ne4 (17.Ba3!?+=) 17...Ne4= 18.Be4 Nd5 (18...Rc4 19.Ba3 Ba3 20.Qa3 Qa3 21.Ra3 Bb5 22.Bb7=) 19.Rfc1 (better 19.Bd5!? ed5 20.b6+–) 19...Rc1= 20.Rc1 Bd7 (20...Nb4 21.Qc4+=) 21.Bd5+– ed5 22.Qd5 Rb8 (22...Bg4 23.Nd2+=) 23.Ne5 Ba3?? (better 23...Be6 24.Qe4 Rd8+–) 24.Ba3 (24.Qd7 Qd7 25.Nd7 Bb2+–) 24...Qa3 25.Qf7 Kh8 26.Rf1 (better 26.Rb1 Bb5 27.Qc7+–) 26...Rc8?? (better 26...Bb5 27.Qc7 Rg8+–) 27.Qd7 Rc1 28.Nf7 (28.Qb7!? Kh7 29.Qd7 a5+–) 28...Kh7 29.Qf5 Kg8 30.Nh6! gh6 31.Qg6 Kf8 32.Qh6 Ke8 33.Qh5 Kd7 34.Qe2 (34.Qd5 Kc7+–) 34...Rf1 35.Qf1 Qb4 (35...a5 36.ba6! ba6 37.h4+–) 36.h4 a6 (36...Qe7 37.h5+–) 37.ba6 ba6 38.Qa6 Qb1 39.Kh2 Qe4 1–0. GuestLYLX – srdaaa, freechess.org, 2017.

6.f4 0-0 7.Nf3 c6 8.Bd3 cb5 9.ab5 Qe8. pcmvr (2515) – futurechild (1960), net–chess.com, 2006.

7.c4 b6 8.Be2 a5 (8...a6 9.Nc3=) 9.0-0 Qe7 (9...c6 10.d3=) 10.d4 Bb4 (10...c6 11.Ne5=) 11.Nbd2 (11.Ne5 c6+=) 11...dc4 (11...c6 12.Ne5+=) 12.Nc4+– Nd5 (12...Bc8 13.Rc1+=) 13.Qc2 (13.Rc1 Ra7+–) 13...f5 (13...c6 14.bc6 Bc6 15.e4+=) 14.Nfe5+– Be8 (14...Rc8 15.Bf3+=) 15.Bf3 Qg5 Black intends f4 (15...Qh4 16.Qb3 Qd8 17.Rfc1+–) 16.Bc1 (better 16.Qb3 Qd8 17.Rfc1+–) 16...Bg6?? (better 16...Qh4+–) 17.e4+– (17.Ng6?! Qg6 18.Ne5 Qe8+–) 17...f4 (17...Nf4 18.Ng6 Nh3 19.Kh1 Qg6 20.ef5 Nf2 21.Rf2 Qf5 22.Qf5 (22.Ba8?? Qc2 23.Rf8 Kf8–+) 22...Rf5 23.Raa2+– (worse 23.Ba8 Rf2 24.Be3 Rf8+–)) 18.Ng6 Qg6 19.Ne5 (19.Ne5 Qf6 20.ed5+–) 1–0. DEFFM – GuestQVWS, freechess.org, 2018.

7.c4 c6 8.Qb3 Re8 9.Be2 e5 10.d4 ed4 11.Bd4 c5 12.Bb2 Be6 13.0-0 dc4 14.Bc4 Bc4 15.Qc4 Nbd7 16.a5 Ne5 17.Ne5 Be5 18.Be5 Re5 19.Nc3 b6 20.Rfd1 Qe8 21.Rd6 Ne4 22.Ne4 Re4 23.Qd5 Qe5?? (better 23...ba5 24.Qc5 Rb4+=) 24.Qa8+- (24.Qa8 Qe8 25.Qe4+-) 1-0. Mely (2265) - sparrow213 (2030), ChessWorld.net, 2016.

7.c4 c6 8.d4 b6 9.Nbd2 (9.Ba3 Ba3 10.Na3 a6=) 9...a5 (9...a6 10.bc6 Nc6 11.Ba3 Ba3 12.Ra3=) 10.Bd3 c5 (better 10...Qe7!?=) 11.0-0 Qc7 (11...Bc8 12.dc5 Bc5 13.Qc2+/-) 12.Rc1 (better 12.dc5 bc5 13.Bf6 gf6 14.Qc2+-) 12...e5?? (better 12...Ng4 13.h3 Nh2+/-) 13.de5+- (13.Ne5?! Be6+-) 13...Ng4 (13...Be5 14.Be5 Qd8 15.cd5 Nd5 16.Be4+-) 14.ed6 Qd6 15.h3 1-0. Mely (2225) - sparrow213 (2040), ChessWorld.net, 2016.

7.Be2 a6 8.0-0 c6 9.Ne5 Be5 10.Be5 ab5 11.ab5 Ra1 12.Ba1 cb5 13.d3 (13.Nc3 b4 14.Na2 Nc6=+) 13...Bc6 (13...Nc6 14.Nd2–/+) 14.Bd4 (14.Nd2 Qe7=) 14...Nbd7 (14...Qe7 15.Qd2=+) 15.f4= Qa5 16.Nd2 Ra8 17.Nb3 Qd8 18.Qe1 (18.Qb1 Qe7=) 18...h6 (18...Qe7 19.Bc3=) 19.Qc3 (19.Bc3 Ra4=) 19...Ra2 20.Ra1 Ra1 (20...Ra4 21.Qb2=) 21.Qa1+= Qe7 (21...b4 22.Nc5=) 22.Bc3 Qd8 (22...h5 23.h3+=) 23.Nd4 Qb6 24.Qa8 Kh7 25.Bb4 e5 26.fe5 Ne5 27.Qf8 (27.Qb8 Ng6+=) 27...Nfg4?? (better 27...Bd7=) 28.Nf5+– (28.Nf5 Qe3 29.Ne3+–) 1–0. GuestZNHB – PaulFang, freechess.org, 2020.

7.Be2 c6 8.c4 cb5 9.ab5 b6 (9...dc4 10.Bc4 Qe7 11.0-0=) 10.cd5 Nd5 11.0-0 Qe8 (11...Bc8 12.Nc3=) 12.Nc3+= Nc3 (12...Qe7 13.Nd5 ed5 14.Bd4+=) 13.dc3+– Bc5 14.Qd3 e5 (14...h6!?+–) 15.Ng5 g6 16.Ne4 Bf5 (16...Kg7+–) 17.Nf6 Kg7 (17...Kh8 18.e4 Qd8 19.Qd8 Rd8 20.ef5 a5+–) 18.Ne8 Re8 19.Qd5 Nd7 20.c4 Kg8 21.Rfd1 Nf6 (21...h6 22.Bf3 Rab8 23.Ra7+–) 22.Qc6 Ne4 (22...Ng4 23.Bg4 Bg4 24.Ra7+–) 23.Ra7! Rac8 (23...Ra7 24.Qe8 Double attack (24.Qe8 Deflection; 24.Qe8 Overloading)) 24.Rc7 Rc7 (24...h5+–) 25.Qe8 Kg7 26.Qe5 (26.Qe5 f6 27.Qc7 Kh6 28.g4+–) 1–0. DEFFM – GuestZTYX, freechess.org, 2017.

7.Be2 Bc8!? =.

7.Be2 e5 8.Ne5+= Be5 9.Be5 Be6 10.0-0 Nbd7 11.Bb2 Ne4 12.a5 f5 13.a6 b6 14.d3 Ng5 15.Qe1 Nf6 16.Qb4 Nf7 17.Nd2 Nh6 18.Qf4 Qd7 19.Rab1 Rac8 20.Nf3 Nf7 21.Bf6 gf6 22.Nd4 Kh8 23.Bg4 fg4? 24.Qf6 Kg8 25.Ne6 Nd6 26.Qg5 Kh8 27.Qe5 Kg8 28.Rb4 h5 29.Qg5 Kf7 30.Nf8 Rf8 31.Rf4 Ke8 32.Qe5 Qe7 33.Qh5 Kd8 34.Qd5 Rf4 35.ef4 Qg7 36.Re1 Qf7 37.Qa8 Kd7 38.Qa7 Nb5 39.Qa8 Nd6 40.a7 Qf4 41.Qd5 Qd2 42.Qe6 Kc6 43.a8Q Kb5 44.Rb1 Qb4 45.c4 Nc4 46.Qc4 1–0. marekt – zavtra2002, Yahoo, 2005.

6.c4 0-0 7.Nf3 a5 8.Be2 c6 9.0-0 Bb4 10.Nc3 c5 11.d4 Be8 12.cd5 Nd5 13.Nd5 Qd5 14.Ne5 Nd7 15.Bf3 Qd6 16.Bb7 Rb8 (16...Rb8 17.Be4 Ne5 18.de5 Qd1 19.Rfd1 f6+–) 0–1. Piriyev,Maksat – Tago,Shunnichi (1810), AA/C15/pr/L ICCF, 2012.

6.c4 0-0 7.Nf3 a6 8.d4 Ne4 Bb4=/+ (9...c6 10.Ne4 de4 11.Nd2 Bb4 12.Be2 ab5 13.0-0 bc4 14.Nc4 Na6) 10.Qc2 (10.Qb3 c5 11.bc6 Nc6 12.Bd3 Bc3 13.Bc3 Na5 14.Qb4 Nc3) 10...c6 (10...ab5 11.cd5 (11.cb5 c5 12.Kd1 Bc3 13.Bc3 cd4 14.Bd4 Qe7) 11...Nc3 (11...ed5 12.Bb5 Bb5 13.ab5 Ra1 14.Ba1 Qd7) 12.Bc3 Bc3 (12...Ra4 13.Ra4 Bc3 14.Qc3 ba4) 13.Qc3 ba4 (13...Ra4 14.Rb1 ed5) 14.de6 Be6 15.Bb5+=) 11.Bd3 (11.b6 Qb6 (11...c5 12.Bd3 cd4 13.ed4 Nc3 14.Bc3 Bc3) 12.Bd3 c5+= (12...Qa5 13.Rc1 Nc3 14.Bc3 dc4) 13.0-0 Bc3 14.Bc3 Nc3) 11...f5 (better is 11...ab5!? has some apparent merit 12.cb5 cb5–/+ 13.0-0 Bc3 14.Bc3 Nc3) 12.0-0= Nc3 (12...dc4 13.Bc4 Bc3 (13...Nc3 14.Bc3 Bc3) 14.Bc3 ab5 15.ab5 Ra1 16.Ba1 cb5 17.Ba2+=; 12...Qc7 13.Ne5 ab5 14.ab5 Ra1) 13.Bc3+/= Bc3 14.Qc3 dc4 15.Bc4 (15.Qc4 ab5 16.ab5 cb5+=) 15...ab5 16.ab5 Ra1 17.Ra1 cb5 18.Bd3 Na6 19.Qb3 (19.Ne5 Be8+=) 19...Nc7= 20.Rb1 (20.Ne5 Bc6=) 20...Qe7 21.Ne5 Be8 (21...Bc6 22.Rc1 Qd6 23.Bf1=) 22.Rc1 Qd6 23.Rc5 Qb6? (better is 23...g6= would keep Black alive) 24.Nc4+– Qa6 (24...Qa7 25.Rc7 bc4 26.Bc4+/–) 25.Rc7 bc4 26.Bc4 ½–½. Roelen,Jolanda – Knoppert,Wilma, NED–ch U20 Girls, 1979.

6.c4 0-0 7.Nf3 c6 8.Qc2 Qc7 9.Ng5 e5 10.f4 e4 11.Be2 Re8 12.0-0 cb5 13.ab5 Bb5 14.Bf6 Bf6 15.Ra2 dc4 16.Ne4 Re6 17.Na3 Bc6 18.Nf6 Rf6 19.Nc4 Bd5 20.Rb2 Rc6 21.Rc1 a6 22.Qd3 Rc5 23.Rcc2 b5 24.Ne5 Rc2 25.Rc2 Bc6 26.Bf3 Ra7 27.Nc6 Nc6 28.Rc6 1–0. Schutz – Nottenkamper.

6.c4 0-0 7.Nf3 Ne4 8.Nc3 Nc3 9.Bc3 Bf6 (9...a6 10.d4=) 10.Bd3 (10.Bf6 Qf6 11.d4 c6+=) 10...dc4 (10...a6 11.0-0+=) 11.Bc4 c6 (11...Be7 12.0-0+=) 12.Qb1 (12.Bf6 Qf6 13.d4 Rc8+=) 12...Bc3= 13.dc3 Qa5 14.0-0 (14.Qb2 Qc7=) 14...cb5 (14...Qc3 15.Ng5 g6 16.Ne4=) 15.ab5 Qc3 16.Qe4 h6?? (better is 16...Bc8+=) 17.Rfc1+– (17.Qb7?! Qc4 18.Qa8 Bb5+–) 17...Qf6 (17...Qb4 18.Qb7 Na6 19.Qa6+– (< 19.Ra6 Bc8 20.Qa8 Ba6+–)) 18.Qb7 Nc6 (18...a6 19.Qa8 ab5+–) 19.bc6 (19...Bc6 20.Qc6+–) 1–0. pierre – fiddler, ChessHere.com, 2006.

6.Nf3= a6 7.Be2 =.

6.Nf3 c6 7.c4 a6 8.Nc3 =+.

6.Nf3 c6 7.c4 cb5 8.ab5 a6 9.Bd3 (9.Be5 0-0=) 9...dc4 10.Bc4 0-0 11.0-0 Qb6 (11...Nd5 12.Qc2=) 12.Bd4+= Bc5 (12...Qc7 13.d3+=) 13.Bf6 gf6 14.Nc3 Kh8 (14...Rc8 15.Qe2+=) 15.Na4 (15.Qe2 Rc8+–) 15...Qc7 16.Nc5 Qc5 17.Qb3 Qh5 (17...Rg8 18.Kh1+–) 18.Be2 (18.ba6 ba6 19.Qc3 Qh6+–) 18...Qg6 (18...Rg8 19.Kh1+–) 19.Rfc1 Rg8 20.Ne1 a5 (20...Bc8!?+–) 21.Rc7 b6 22.Rb7 (22.d4 Rc8 23.Qc4 Qg8+–) 22...e5 23.Rb6 (23.Bc4 Kg7+–) 23...Be6 24.Bc4 Bh3?? (better 24...Nd7 25.Rc6 Nb8 26.Be6 a4+–) 25.Bf7 Rg7 (25...Qg5 26.Bg8 Nd7+–) 26.Bg6 (26.Bg6 Nd7 27.Be4 Nb6 28.Ba8 Na8 29.Qd5+–) 1–0. DEFFM – GuestGSSG, freechess.org, 2018.

6.Nf3 c6 7.c4 cb5 8.ab5= dc4 (8...0-0 9.Bd4=) 9.Bc4 b6 (9...0-0 10.0-0=) 10.Nc3 (10.Ne5 a5+/–) 10...Bc8 (10...Qc7 11.d3+=) 11.0-0 (11.Qe2 Bb7+=) 11...Bb7 12.Be2 (12.Qe2 0-0+=) 12...Nbd7 (12...0-0 13.d4+=) 13.d4 0-0 14.Qd3 Qc8 (14...Nb8 15.Ra4+=) 15.Nd2 (15.Rfc1 Qb8+/–) 15...Rd8 (15...Qb8 16.Ba3 Ba3 17.Ra3+=) 16.Qc2 (16.Rfc1 Qb8+=) 16...Bd6 (16...a6 17.ba6 Ba6 18.Bf3=) 17.g3 (17.Nc4 Bb8+=) 17...Nf8 (17...a5 18.Nc4 Bb4 19.Qa4=) 18.Bf3 (18.Ba3 e5 19.Bd6 ed4=) 18...Bf3= 19.Nf3 Qb7 (19...a6 20.ba6 Ra6 21.e4 Ra1 22.Ra1=) 20.Kg2 (20.Qe2 Ng6=) 20...Rac8 21.Ra2 Bb4 22.Qb3 Be7 23.Rc1 Ra8 24.Ba3 Ba3 25.Ra3 Ng6 26.Qa2 Rd7 27.Qe2 Ne8 28.Kg1 Nc7 29.Ne5 Ne5= 30.de5 Nd5 31.Nd5 Rd5= 32.f4 Qd7 33.Rb1 Rc8 34.Rab3 h6 35.Qf3 Rd3 36.R3b2 Rd5 37.Kg2 Rcc5 38.Qe2 Qb7 39.Kh3 Qd7 40.Kg4 Rd3 41.h4 Rcc3–/+ 42.Re1 Qd5 43.Rc2 Re3 44.Qe3 Re3 45.Re3 f5 46.ef6?? Qf5 47.Kf3 Qc2 48.fg7 Qd1 49.Kf2 Qc2 50.Kf3 Qc4 51.Ra3 Qd5 52.Kf2 Qd7 53.Re3 Kg7 54.Ra3 Kf6 55.Kf3 h5 56.Kg2 Kf5 57.Kf3 Qd5 58.Ke2 Qb5 59.Kf2 a5 60.Re3 Qc5 (61.Ke2 a4–+) 0–1. Eisenhauer,Erik – Spinnler,Wolfgang, Rheinhessen–ch HT2, 2000.

6.Nf3 c6 7.Be2 a6 =.

6.Nf3 c6 7.Be2 cb5 8.ab5 0-0 9.0-0 Ne4 10.d3 Nd6 11.c4 Qc7 12.Qd2 (12.Qb3 dc4 13.dc4 a5+/–) 12...dc4+= 13.Qc3 (13.dc4 Nc4 14.Qc2+/–) 13...Bf6–/+ 14.d4 (14.Qc2 Bb2 15.Qb2 Bb5 16.dc4 Bc6–/+) 14...Bb5 15.Ne5 (15.Nbd2 Nd7–/+) 15...Nd7 16.Ba3? (16.Nd2 Nb6 17.Ba3 Rfd8–/+) 16...Rfc8 (16...Ne5!? 17.de5 Ne4 18.Qd4 Be5 19.Qe4–+) 17.Nd7 (17.Nd2 a6–/+) 17...Qd7 (17...Bd7 18.Bd6 Qd6 19.Nd2–+) 18.Bf3 (18.Nd2 Be7 19.g3 Bc6 20.Nc4 Nc4 21.Be7 Ne3 22.fe3 Qe7–+) 18...Ba6 (18...Bc6 19.Bc6 Qc6 20.Bd6 Qd6 21.Nd2–+) 19.Bc5 (19.Bb4!?–/+) 19...Rc5!–+ 20.Ra6 (20.dc5 Bc3 Pinning (20...Bc3 Deflection)) 20...Rcc8 (better is 20...Rf5 21.Ra1 Rb5–+) 21.Rd6–/+ Qd6 22.Bb7 Rab8 23.Bc8 Rc8 24.Na3 (24.Nd2!?+=) 24...e5–/+ 25.Rd1 (25.Nc4 Qe6 (25...ed4?! 26.Nd6 Rc3 27.Rb1+=) 26.Rc1 ed4 27.ed4 h5–/+) 25...ed4–+ 26.ed4 Qd5 27.Nc2 Qb5 28.Qa1 (28.Ne3 a5–/+) 28...a5 (28...c3 29.d5–+) 29.Rb1 Qa6 (29...Qf5 30.Rc1–+) 30.Qa4–/+ g6 31.d5 c3 32.Rd1? (32.Rb5 Bd8–/+) 32...Rd8 (32...Qe2 33.Re1 Qd2 34.d6–+) 33.h3 (33.h4 Qe2 34.Ne3 Rb8–+) 33...Qe2 34.Re1 (34.Ne3 Bg5 35.Qg4 Qg4 36.hg4 a4–+) 34...Qd2 35.Re8 (35.Rf1 Qd5 (35...Rd5?! 36.Ne3–+) 36.Rb1 Qf5–+) 35...Kg7 36.Rd8 (36.Re3 Rd5 37.Kf1 Bd4–+) 36...Bd8 37.Qd4 Qd4 38.Nd4 a4 (38...Kf6 39.Kf1 Ke5 40.Ne2–+) 39.Nc2 (39.Kf1 Kf6 40.f4 Bc7–+) 39...Kf6 40.Kf1 (40.f4 Ke7 41.Na3 Ba5–+) 40...Ke5 41.Ke2 Kd5 42.Kd3 Bf6 43.Nb4 Ke6 44.Na2 Kd5 45.Nb4 Ke6 46.Na2 Kf5 47.g3?? h5 48.Nb4 g5 49.f3 a3 50.Ke3 c2! 51.Nc2 a2 52.g4 hg4 53.hg4 Kg6 54.Ke4 a1Q 55.Na1 Ba1 56.Kd5 Kf6 57.Kd6 Bb2 58.Kd5 Ba3 59.Ke4 Bc1 60.Kd5 Bd2 61.Ke4 Ke6 62.Kd3 Bf4 63.Ke4 f6 64.Kd4 Kd6 65.Ke4 Kc5 66.Kf5 Be5 67.Ke6 Kd4 68.Kf5 Ke3 69.Kg6 Kf3 70.Kh5 Bd4 71.Kg6 Kg4 0–1. Pan,Konstantin – Abdurahmanov,Afer (1660), Ulyanovsk RUS, Povolje Open, 2014.

6.Nf3 Ne4 7.d3 (7.Bg7!? Rg8 8.Bb2+–) 7...Nf6= 8.Nbd2 c6 9.c4 dc4 10.dc4 cb5 11.ab5 0-0 (11...a6 12.Be2+=) 12.Be2 (12.Qc2 a6+=) 12...a6 13.0-0 Bc5 14.Qc2 b6 (14...Qe7 15.Bd3 h6 16.Nb3+–) 15.Rfd1 (15.Ng5 g6 16.Qc3 Be7+–) 15...Qc7 (15...Qe7!?+–) 16.Ne4+– Ne4 17.Qe4 Qa7 (17...Ra7+–) 18.Ng5 Bc8?? (18...f5 19.Qe5 Rf6+–) 19.Qh7 1–0. DEFFM – UTDUN, freechess.org, 2017.

6.Nf3 h6 7.c4 dc4 8.Bc4 (8.Nc3 0-0 (8...Bc8 9.Bc4 Nbd7 10.Qc2 0-0 11.0-0 b6 12.d4 Bb7 13.Ne5) 9.Bc4 Be8 10.0-0 Nbd7 11.d4 Rc8 12.Rc1 Bd6 13.Bd3; 8.Qc2 0-0 (8...a6 9.Nc3 ab5 10.ab5 Ra1 11.Ba1 0-0 12.Bc4 Be8 13.0-0; 8...Bc5 9.Bc4 a6 10.Nc3 ab5 11.ab5 Ra1 12.Ba1 0-0 13.0-0) 9.Bc4 Be8 10.0-0 Nbd7 11.a5 Rc8 12.Nc3 c6 13.bc6) 8...0-0 (8...Bc8 9.Nc3 Nbd7 10.Qc2 0-0 11.0-0 b6 12.Rfd1 Bb7 13.d4) 9.0-0 c6 (9...Be8 10.Nc3 Nbd7 11.d4 Rc8 12.Qb3 Nb6 13.Bd3) 10.bc6 (10.Nc3 Qc7 11.Qb3 Rc8 12.Rac1 Be8 13.d4) 10...Bc6 (worse 10...bc6 11.Ne5+– c5 12.Qf3 Qb6 13.Nc3; 10...Nc6 11.Nc3 Rc8 12.Rc1 Na5 13.Bd3) 11.Be2 (11.Nc3 Nbd7 12.Nd4 Ne5 13.Nc6) 11...Nbd7 12.Nd4 Rc8 (12...Qb6 13.Nc6) 13.Nc6 (13.Nc3=) 13...Rc6 14.Bf3 Rc7 15.Nc3 a6 16.Rc1 Qc8 (16...Ne5 17.d4 Nc4 18.Qe2=) 17.Ne4 Ne4 18.Be4 Nf6 (18...Rc1 19.Qc1 Nc5 20.Bc2=) 19.Bf3 Rd8 20.d4 Rdd7 (20...Rc1 21.Qc1 Qc1 22.Rc1=) 21.Qd2 e5 (21...Rc1!? 22.Rc1 Rc7=) 22.Rc7+– Qc7 23.Qc3 (23.Rc1!? Qd8 24.Qc2 ed4 25.Bd4+–) 23...e4 24.Qc7 Rc7 25.Bd1 g6 26.f3 ½–½. Ruhle,Ernst Albrecht – Trautwein,Helmut, Wch Seniors, 1995.

7.Nc3 Bd6 8.Be2 =+.

7.Nc3 h6 8.Be2 c6 (8...a6 9.Bd3=) 9.0-0 (9.Ne5 Be8=) 9...a6 (9...Qc7 10.bc6 Nc6 11.Nb5=) 10.Ne5 ab5 11.ab5 Ra1 12.Qa1 (12.Ba1 cb5 13.Nb5 Nc6+=) 12...Bc8 (12...Be8 13.bc6 bc6 14.d4+=) 13.Qa7 (13.f4 d4 14.ed4 Qd4 15.Kh1 Qd2+=) 13...Qc7 14.f4 Nfd7 15.bc6 (15.Nf3 Na6 16.Qd4 Bf6+=) 15...Ne5 16.Nb5?? (16.fe5 Nc6 17.Nb5 Na7 18.Nc7 Bd7+=) 16...Qc6?? (better is 16...Nec6 17.Qa1 Qa5 18.Bg7 Qa1 19.Ba1 Na6–+) 17.Be5+= Qb5?? 18.Bb5+– Nd7 19.Bd7 Bd7 20.Qb7 Rd8 21.Ra1 f6 22.Bc7 Re8 23.Ra8 Kf7 24.Re8 Be8 25.Bd6 Bd7 26.Qd7 Kg6 27.Be7 Kf5 28.Bf8 Ke4 29.Qe6 1–0. Fredek (2090) – Guest72271, Freundschaftspartie, 5m + 0s, 2005.

7.c4 dc4 8.Bc4 c6 9.0-0 cb5 10.ab5 Bd6 11.Nc3 (11.d3 a6+=) 11...Qc7 (11...e5 12.d4 e4 13.Ne5+=) 12.h3?? (better 12.d3=) 12…Qc4–+ 0–1. GuestVSPS – Guestwick, freechess.org, 2016.

7.c4 dc4 8.Bc4 c6 9.Ne5 Be8 10.0-0 cb5 11.ab5 Nbd7 12.Qf3 Qc7 13.Nd7 Bd7 14.Rc1 Rfc8 15.h3 Qd8 16.Qb7 Rab8 17.Qa7 Ra8 (17...Bb5!? 18.Bb5 Rc1 19.Bc1 Rb5+=) 18.Qd4+/– Ra1 19.Ba1 Bc5 (19...Bb5!? 20.Qd8 Bd8+/–) 20.Qf4 Be7 21.Qd4 Bc5 22.Qf4 ½–½. Bouvier,Clement (1665) – Couronne,Patrice (1825), Montigny le Bretonneux op, 2007.

7.Be2 c6 8.0-0 cb5 9.ab5 a6 10.Ne5 Be8 11.f4 Ne4 12.Nc3 Nd6 (12...Nc3 13.Bc3 a5 14.Bd3+=) 13.Qe1 (13.Bd3 a5+–) 13...Qb6 (13...a5 14.Qg3+=) 14.Na4 (14.Bd3 Nd7 15.Na4 Qc7 16.ba6 ba6+=) 14...Qc7 15.Nc3 Bf6 (better 15...Qb6=) 16.Qg3+– Nf5 (16...Nd7 17.Bd3+–) 17.Qh3+– d4 (17...Bd7 18.g4 Nd6 19.Bd3+–) 18.ed4 Nd4 (18...Qb6 19.Na4 Qc7 20.Nc5+–) 19.Bd3 g6?? (19...h6 20.Qe3 Nf5 21.Bf5 ef5+–) 20.Ne4 Be5 21.fe5 h5 (21...f5 22.ef6 Nf5+–) 22.Bd4 Nd7 23.Qe3 Kh7 24.Nd6 (better 24.b6 Qb8+–) 24...Kg7 (24...f5+–) 25.b6 Qb8 26.Be4 1–0. DEFFM – GuestRRMW, freechess.org, 2019.

7.Be2 c6 8.c4 dc4 9.Bc4 Qe8 10.Qb3 cb5 11.ab5 Bc5 (11...Ne4 12.Nc3 Nd6 13.Bd3=) 12.0-0 (12.Bf6 gf6 13.d4 Bd6+/-) 12...Qe7+= 13.Nc3 Rc8 (13...Bd6 14.Na4 a6 15.Nb6+/-) 14.d4 Bb4 15.Rfc1 Bc3 (15...a6 16.Ne5+=) 16.Bc3+/- (worse 16.Qc3 Bb5 17.Ba3 Qd8=+) 16...Be8 17.Bb4 Qd8 18.h3 Nbd7 19.Rc2 a6 (19...Nb6 20.Bd3+/-) 20.Rac1 (20.ba6 ba6 21.Ra6 Nb6+-) 20...a5 (20...ab5 21.Bb5 Rc2 22.Qc2+=) 21.Ba3+/- b6 22.d5 (22.Bd3!?+=) 22...ed5= 23.Bd5 (23.Bf1 Rc2 24.Qc2 Nc5=+) 23...Rc2 24.Rc2 Nd5 25.Qd5 Nf6 (25...Nf8 26.Qd8 Rd8 27.Nd4=) 26.Qd8 Rd8 27.Nd4 Ne4 28.Rc7 Rb8 (28...Nd2 29.Nc6 Ra8 30.Ne7 Kh8 31.Nc8 Bb5 32.Nb6+=) 29.Nc6 Bc6 (29...Ra8!?+=) 30.bc6+/- (worse 30.Rc6 h6+=) 30...f6?? (better 30...h5+/-) 31.Rd7+- Nc5 (31...Rc8 32.c7 Rc7 33.Rc7 b5+-) 32.Bc5 (32.Bc5 Rc8 33.c7 Rc7 34.Rc7 bc5 35.Rc5+-) 1-0. Mely (2225) - VincentNJ (2065), ChessWorld.net, 2016.

7.Be2 Ne4 8.0-0 Bf6 9.d4 c6 10.Nbd2 Nd2 11.Qd2 cb5 12.ab5 (worse 12.Bb5 Bb5 13.ab5 Qc7=) 12...b6 (12...Qb6 13.Ba3 Rc8 14.Bc5 Rc5 15.dc5 Qc5 16.Nd4+=) 13.c4 dc4 14.Bc4 Bc8 15.Qc2 Bb7 16.Qe2 Bd5 17.Bd3 Re8 18.e4 Bb7 19.Rfc1 Bg5?? (better 19...Be7+/-) 20.Ng5+- Qg5 21.Rc7 Re7 22.f4! Qf6 (22...Qf4 23.Re7 Deflection) 23.e5 Qh4 24.g3 Qf4 (24...Qg3 25.hg3 Rc7+-) 25.Re7 Qf3 26.Re8 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

7.Be2 h6 8.0-0 Bd6 9.c4 Qe7 (9...Be8 10.Qc2+=) 10.d4+/- c6 11.c5 Bc7 12.Nbd2 e5 (12...Be8 13.Rb1+/-) 13.Ne5 Be5? (better 13...Bf5!?+/-) 14.de5+- Nh7 15.Bg4?? (15.Qc2 Rc8+-) 15...f5? (better 15...Bg4 16.Qg4 Nd7+/-) 16.Be2+- Be6 17.Bd4 Nd7 (17...Ng5 18.Nb3+-) 18.bc6 bc6 19.f4 Rab8 20.Nb3 g5 (20...Rfc8 21.Rb1+-) 21.Na5 Rbc8 (21...Rfc8 22.Rb1+-) 22.Qc2 gf4 (22...Rc7 23.Rab1+-) 23.ef4 (23.Rf4?! Ng5+-) 23...Kh8 (23...Rc7 24.Rab1+-) 24.Rab1 Rc7 (24...Qd8 25.Qd2+-) 25.Nb7 Rg8 (25...Rcc8 26.Bd3 Kg8 27.Nd6+-) 26.Nd6 Ndf8 (26...Nhf8 27.Bd3+-) 27.Nf5 (better 27.Kh1 Rg7+-) 27...Bf5 28.e6 Nf6 (28...Rg7 29.Qf5 Qe6+-) 29.Qf5 Rg6 (29...N8h7+-) 30.Rb8 Kg7 31.Bh5 Qe6 32.Bg6 (32.Bg6 Qf5 33.Bf5+-) 1-0. DEFFM – Trellos, freechess.org, 2021.

6.a4 ab5 7.ab5 Ra1 8.Ba1 Bb4 9.Qb3 Bc5 10.Nf3 0-0 11.Bd3 Qe7 (11...dc4 12.Qc4 Bd6 13.Qh4=) 12.0-0 b6 (12...dc4!? 13.Bc4 c6=) 13.Bf6+/– Qf6 14.cd5 ed5 15.Nc3 Be6 16.Nd5 Bd5 17.Qd5 Rd8 18.Qe4 g6 19.Bc4 Nd7 20.d4 Bd6 21.Qc2 Nf8 22.e4 Qf4 23.e5 Be7 24.Bb3 Rc8 25.Qc6 Kg7 (25...Qf5 26.Ra1+–) 26.Qb7 Qf5 27.e6! Rd8 (27...fe6 28.Qc8 Decoy (28.Qc8 Interception); 27...Ne6 28.Qc8 Decoy (28.Qc8 Interception)) 28.Qc7 (28.ef7?! Qb5 29.Qc7 Qb3 30.Qe7 Rd7 31.Qe5 Kf7+–) 28...Qf6 29.ef7 Bd6 30.Qc3 Nd7 (30...Rd7 31.Ne5 Rc7 32.Qe3+–) 31.Qc6 Kf8 (31...Bb4 32.Qf6 Nf6 33.Rc1+–) 32.Re1 Nb8 (32...Be7+–) 33.Re8 (33.Qb6?! Bh2 34.Kh2 Qb6+=) 33...Kg7 34.Qb6 Bh2 35.Nh2 Qb6 36.f8Q 1–0. Janek – Zack, internet, 2016.

6.a4 ab5 7.ab5 Ra1 8.Ba1 dc4 9.Bc4 c6 10.Qa4 (10.bc6 Bc6 11.Nf3 Bd6=+) 10...Qc7 (10...Bd6 11.Nf3=+) 11.Ne2 (11.Bf6 cb5 12.Bb5 gf6=) 11...Bd6 (11...cb5 12.Bb5 Be7 13.Bf6 Bf6 14.d4=) 12.f4 (12.Bf6 gf6 13.d4 Bh2+–) 12...Nd5 (12...cb5!? 13.Bb5 Bb5 14.Qb5 Qc6=) 13.Bd5 (13.Bg7 Rg8 14.bc6 Bc6=+) 13...ed5 14.Nbc3 (better is 14.Bg7!? cb5 15.Qb3+=) 14...0-0=+ 15.0-0 Be6 (15...Re8 16.Nd4=+) 16.h3 (16.Nd4 c5 17.Ne6 fe6=) 16...f6 (16...Re8 17.Nd4=+) 17.Nd4 ½–½. Horch,Juergen – Plock,Joerg, Magdeburg GER, 1994.

6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.Nf3 Qb6 (9...dc4!? 10.bc6 Bc6 11.Bc4 Bd6=) 10.Be5+= Qa7 (10...Qd8 11.Nc3+=) 11.Nc3 Be7 12.cd5 Nd5 (12...cd5!? 13.Bd3 0-0+=) 13.Nd5 ed5 14.Bg7 Rg8 15.Bd4 (15.Be5 f6 16.Bg3 Rg7+–) 15...Bc5 (15...c5 16.Be5+–) 16.Bb2 (16.Bc5 Qc5 17.Qb1 h6+–) 16...cb5 (16...Bf5 17.Nh4 Qa2 18.bc6 bc6 19.Qc1+–) 17.Qc2 Qa2 (better 17...f5+–) 18.Qh7 (18.Qc5?! Qb2 19.Qc7 Nc6 20.Qb7 Qc1 21.Ke2 Qc4 22.Kd1 Qa4 23.Ke1 Rg6+–) 18...Kf8 19.Ne5 Be6 20.Qc2 Ba3? (20...Qa7+–) 21.Ng6!! Ke8 (21...fg6 22.Qd3 Double attack (22.Ba3 Decoy); 21...Rg6 22.Qd3 Double attack (22.Ba3 Decoy)) 22.Bb5 Bd7 (22...Nc6 23.Bc6 Bd7 24.Bd7 Kd7 25.Qf5 Kc6 26.Ne5 Kb6 27.Bd4 Ka5+–) 23.Qc8 1–0. Janek – Balcony, internet, 2018.

6.a4 ab5 7.ab5 c6?? 8.Ra8+- cb5 (8...Ne4 9.Nc3 Nf6 10.Nd5 cd5 11.Be5+-) 9.cb5 (better 9.Be5 Bc8 10.Bf6 gf6 11.Rb8 bc4 12.Qa4 Ke7+-) 9...Be7 (9...Bd6+-) 10.Be5 0-0 11.Rb8 (11.Rb8 Qb6 12.Rf8 Kf8 13.Qc2+-) 1-0. BeepBeepImAJeep (2775) - sasaue (1795), lichess.org, 2016.

6.a4 dc4 7.Bc4 Bb4 8.Nf3 =.

6.a4 dc4 7.Bc4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Nc3 cb5 11.Nb5 Nc6 12.Nd4 Be7 13.Ngf3 0-0 14.0-0 Qc7 15.Nb5 Qb6 16.Qb1 h6 17.Nbd4 Qc7 18.Rc1 Ra8 19.Nc6 Bc6 20.Ne5 Bd6 21.f4 Be5 22.Be5 Qa5 23.Qc2 Ng4 24.Bc3 Qd8 25.h3 Nf6 26.d3 Nd5 27.Bd5 Qd5 ½–½. Mc Cartney,P (2145) – Jackson,T (2155), US Open, Dallas USA, 2008.

6.a4 dc4 7.Bc4 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nf3 c6 11.Nc3 0-0 12.Qb3 Qc7 (12...cb5 13.Bb5 Na6 14.Bd7 Qd7 15.d4=) 13.0-0+/– Ne8 (13...Qa5 14.Ne5+/–) 14.d4 Nd6 15.b6 Qd8 16.Bd3 Be8 17.Ne5 Nd7 18.Nd7 Bd7 19.Na4 Qb8 (19...Nb5 20.Nc5+/–) 20.Nc5 Rd8 21.Bb2 Nc8 (21...g6 22.e4+/–) 22.Ba3 Bd6 23.g3 e5 24.de5 Be5 (24...Bc5!? 25.Bc5 Bh3+/–) 25.f4+– Bd6 26.Bc4 (26.Nd7 Rd7 27.Rd1 Ne7+–) 26...Be8+/– 27.e4 Be7 28.e5 g6? (28...Rd4 29.Qb4 Rc4 30.Qc4 Nb6 31.Qd4+/–) 29.Ne4?? (better is 29.e6 Nd6 30.Ne4+–) 29...Ba3+= 30.Nf6 Kg7 31.Qa3 Nb6 32.Qc3 (better is 32.Ba2!? Qc7 33.Qc3+=) 32...Nc4+= 33.Ne8 (33.Qc4 Qa7 34.Kh1 c5 35.Ne8 Re8–/+) 33...Re8 34.e6 (34.Qc4 Qa7 35.Kg2 Qa5–/+) 34...f6 (34...Kf8 35.Qc4 Re6 36.f5–+) 35.Qc4–/+ Qa7 (35...Qd6 36.Re1–/+) 36.Kg2+= Qe3 37.Qb4 (better is 37.Rb1!?+=) 37...Qe6–+ 38.Qb7 Re7 39.Qa6 (39.Qb2 c5–+) 39...Qd5 40.Kg1 (40.Rf3 c5 41.Qd3 Qc6–+) 40...Qc5 (40...c5 41.f5–+) 41.Kg2 (41.Rf2 Re1 42.Kg2 Qd5 43.Kh3 Re7–/+) 41...Ra7 (41...Qc2 42.Rf2 Qe4 43.Kh3 Qf5 44.Kg2 Qd5 45.Kh3–+) 42.Qc8?? (better is 42.Qe2–/+) 42…Ra2 0–1. Krueger,Bernhard – Feinshtein,Janir, 4th Baunatal op, 1998.

6.a4 dc4 7.Bc4 Ne4 8.Na3 =+.

6.a4 Be7 7.Nc3 =+.

6.ba6 Na6 7.Nf3 Be7 =+.

6.Nc3 c6 7.a4 Bd6 8.d4 0-0 (8...dc4 9.Bc4 ab5 10.ab5 Ra1 11.Qa1=) 9.c5= Be7 10.Nf3 (10.b6 Be8+=) 10...Ne8 (10...ab5!? 11.ab5 Ra1 12.Qa1 cb5 13.Bb5 Bb5 14.Nb5 b6+=) 11.Bd3 ab5 12.ab5 Ra1 13.Qa1 Nc7 (13...b6!?=) 14.Qb1 f5 15.b6 Ne8 16.Ne5 ½–½. Noack,Rolf – Moschell,Hans Helmut (1865), GER–chT Seniors, 2003.

6.cd5 Nd5 7.a4 ab5 8.ab5= Ra1 9.Ba1 Nf6 (9...c6 10.bc6 Nc6 11.Nf3=) 10.Nf3 Bd6 11.Be2 (11.Be5 0-0=) 11...0-0 12.0-0 Nd5 (12...Qe7 13.Bf6 Qf6 14.d4=) 13.Nc3 c6 (13...Qe7 14.Qb3=) 14.Qc2 (14.Nd5 ed5 15.bc6 bc6=) 14...Be7 (14...Nc3 15.Qc3 f6 16.Bd3=) 15.bc6 (15.Nd5 cd5 16.Bd3 f5+=) 15...Bc6= 16.Ne5 Be8 (16...Nb4!? 17.Qb2 Bf6+=) 17.Nd5+/– ed5 18.Bd3 h6 19.Ng4 Nd7? 20.Nh6!+– gh6?? 21.Bh7# 1–0. Erlandsson,C_E – Ahlen, Malmoe, 1966.

6.cd5 Nd5 7.a4 c6 8.Nf3 =+.

6.Qf3 ab5 7.cb5 Bd6 =+.

6.Bc4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Nc3 cb5 11.Bb5 Nc6 12.Nf3 Be7 13.Bb2 0-0 14.0-0 Ng4 15.h3 Nge5 (15...Nf6 16.Qe2=) 16.d4+= Nf3 17.Qf3 Qb6 18.Qe2 Qd8 19.Ra1 Bf6 20.Ba3 Re8 21.Ne4 Be7 22.Bb2 (22.Nd6 Bd6 23.Bd6 Qb6+–) 22...Nb8 23.Ra8 Qc7 24.Bd7 Qd7 25.Ra1 (25.Qg4 Qb5 26.Ba3 Na6 27.Re8 Qe8 28.Be7 Qe7+=) 25...Rc8= 26.Qd2 (26.Ba3 Ba3 27.Ra3 Na6+=) 26...Qc6 (26...f5 27.Nc3=) 27.Rc1+= Qd7 28.Nc5?? (28.Rc8 Qc8 29.d5 Qc4=) 28...Bc5 (better 28...Rc5 29.Rc5 Bc5–+) 29.dc5?? (better 29.Qc3=) 29…Qd2–+ 0–1. GuestNPTV – GuestPMBB, freechess.org, 2017.

6.Bc4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Nc3 cb5 11.Nb5 Bb5 12.Bb5+= Nbd7 13.Bf6 Qf6 14.Nf3 Be7?? (better 14...Bd6+/-) 15.Qa4+- 0-0 16.Bd7 Qb2 17.0-0 g6 18.d4 Bd6 19.Ng5 Qb4 (19...Be7 20.Ne4+-) 20.Qa2 (20.Qb4 Bb4 21.Rb1 Ra8+-) 20...Be7 (20...Bh2 21.Kh2 Qd6 22.Kg1 Qd7 23.Rb1+-) 21.Ne6! fe6 22.Be6 (22.Rb1!? Qd6 23.Qe6 Kg7 24.Rb7 Rf6 25.Qd6 Rd6+-) 22...Kh8 (22...Kg7 23.Rb1 Ra8 24.Rb4 Ra2 25.Rb1+-) 23.Rb1 Qd6 (23...Qc3 24.g3 Qc7 25.Qb2+-) 24.d5 Qe5 25.Rb7 Bd6 (25...Bf6 26.Qa7 Bg7 27.h3+-) 26.g3 Qf6 27.f4 Qc3 28.Kg2 Qe3 (28...Bc5 29.Rc7 Qa3 30.Qa3 Ba3+-) 29.Qb2 (29.Qb2 Be5 30.Qe5 (30.fe5?! Qf3 31.Kh3 Qh5 32.Kg2 Qf3 33.Kh3 Qh5 34.Kg2 Qf3=) 30...Qe5 31.fe5+-) 1-0. DEFFM – GuestWBCH, freechess.org, 2021.

6.Bc4 a6 7.ba6 Na6 8.Nf3 =+.

6.Bc4 Bc5 7.a4 0-0 8.Nf3 c6 9.Qb3 cb5 10.ab5 b6 (10...Qe7 11.0-0=) 11.0-0 Qe7 (11...Bc8 12.d3+=) 12.d4 Bd6 13.Nbd2 Rc8 14.Ra2 Qe8 (14...Rc7!?+=) 15.Rfa1+/- Rc7 16.Ne5 (16.Bd3 Bf8 17.Nc4+-) 16...Be5? (better 16...Bc8!?+/-) 17.de5+- Nh5? (17...Nd5 18.Bd5 ed5 19.Qd5 Bb5 20.e6+-) 18.Nf3 (better 18.Be2!? a5+-) 18...g6 (18...Bc8 19.g4+-) 19.Nd4 (19.Bd4 a6+-) 19...Ng7 20.Nf3 Rc5?? (20...Nh5 21.Nd2 Bc8+-) 21.Ra7?? (better 21.Bd4 Rc4 22.Qc4 Bb5 23.Qc3+-) 21...Ra7+/- 22.Ra7 Bb5 23.Nd2 Bc4 24.Nc4 b5 (24...Qc8 25.Ra8 Rc4 26.Rb8 Qb8 27.Qc4+=) 25.Nd2 (25.Nd6 Qc6 26.h3 Nf5 27.Nf5 gf5+-) 25...Nc6 (25...Qc8!?+/-) 26.Ne4+- Rc4?? (better 26...Qb8 27.Rd7 Rc4 28.Nf6 Kh8 29.Rf7 Ne5+-) 27.Nf6 Kf8 (27...Kh8 28.Ne8 Na7 29.Qa3+-) 28.Ne8 (28.Ba3!? Ne7 29.Ne8 Ne8 30.Qb5 Rc7+-) 28...Ne8 (28...Na7 29.Nf6 Nh5 30.Qa3 b4 31.Qa7+-) 29.Ra8 Rb4 (29...Kg7 30.Qb5 Rc2 31.Re8 h6+-) 30.Ba3 Kg7 31.Bb4 Ne5 32.Bc3 f6 33.Ra7 Nf7 34.Qb5 (34.Qe6 Kh6 35.Qf7 Ng7 36.Qg7 Kh5 37.Qh7 Kg5 38.Qh3 b4 39.f4) 34...Ned6 35.Qd7 Kh6 (35...e5 36.Qd6 h5 37.Qe7 h4 38.Qf7 Kh6 39.Qf6 Kh5 40.Rh7 Kg4 41.Rh4) 36.Qe7 (36.Qe7 e5 37.Qf6 Kh5 38.Qf3 Kh4 39.Be5 Nc4 40.Bf6 g5 41.Qh3; 36.Bf6 g5 37.g4 Kg6 38.Qe6 h5 39.Be5 Kh7 40.Rf7 Nf7 41.Qf7 Kh6 42.Qh5) 1-0. ClayPigeons (2200) - cleber_x (2160), Rated Bullet game, lichess.org, 2020.

6.Bc4 Bc5 7.Nf3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 0-0 11.0-0 c6 12.Nc3 cb5 (12...Bd6 13.Qc2=) 13.Nb5 Bc6 14.Nbd4 (14.Qe2 Qe7+=) 14...Bd4 15.Nd4 (15.Bd4 Nbd7=) 15...Bd5 16.Qb3 Bc4 17.Qc4 Nd5 18.Rb1 Qd7 19.Nf3 (19.Qb3 Rc8+=) 19...Rc8 20.Qg4 g6 (better 20...f5!? 21.Qg3 Nc6=) 21.Qd4+– f6 22.Qh4 (22.e4 Qb5 23.Qb2 Qb2 24.Bb2 Nf4 25.Bf6 Nd7+–) 22...Qb5 (22...g5 23.Qh6 g4 24.Ne1+–) 23.Rf1 (23.Re1 Nd7 24.e4 Nb4 25.Bf6 Nd3+–) 23...Nd7 (23...e5 24.d4 Nd7 25.Re1+=) 24.Nd4 (24.e4!? Nb4 25.Bf6+–) 24...Qb6 25.Qe4 (25.Qg4 f5 26.Qg3 N5f6+=) 25...Kf7 (25...Nc5 26.Qg4=) 26.f4 Rc4 27.f5 (better 27.Qf3+=) 27...e5?? (27...gf5 28.Qh4 Nf8 29.Qh6=) 28.d3 (better 28.Qd5 Ke7 29.Qc4 ed4 30.Bd4+–) 28...Rd4? (better 28...Rc5+=) 29.ed4+– Ne7 30.fg6 hg6 31.Kh1 Nf5? (31...ed4 32.Bd4 Qd6+–) 32.de5 Ne5 (32...Qc6 33.Qc6 bc6 34.g4+–) 33.Be5 fe5 34.g4 (34.Qe5?! Kg8+–) 34...Qc6 35.Qc6 (35.Qc6 bc6 36.gf5+–) 1–0. GuestJXBM – GuestTSHH, freechess.org, 2017.

6.Bc4 c6 7.a4 Be7 8.Nf3 0-0 9.0-0 Qb6 10.Nc3 Bb4 (10...cb5 11.ab5 Bd6 12.Qe2+=) 11.Be2 (11.Qb3 a5+=) 11...cb5 12.ab5 Bc3 13.Bc3 Bb5 14.Bf6 Be2 (14...gf6 15.d4=) 15.Qe2+= gf6 16.Rfb1 Qc7 17.Nd4 Nc6 18.Rc1 Nd4?? (better 18...f5 19.Nc6 bc6+=) 19.Qg4+– (19.Rc7 Ne2 20.Kf1 Nd4 21.ed4 Rfb8–/+) 19...Kh8 20.Rc7 (20.Qd4?! Qd8 21.Qb2 a5=; 20.ed4 Qd8=+) 20...Nc6 (20...Nb3 21.Ra3 Rac8 22.Qf4 Rc7 23.Qf6 Kg8 24.Qg5 Kh8 25.Qe5 Kg8 26.Qg3 Kh8 27.Qc7 Nd2 28.Ra7+–) 21.Qh4 f5 22.Qf6 Kg8 23.Ra4 Ne5 24.Qg5 (better 24.Qe5 a6 25.Rb7 Rad8+–) 24...Ng6 (24...Kh8 25.Qh5 Ng6 26.Rb7+–) 25.Rb7 Rad8 (25...Rfb8 26.Rb8 Rb8 27.h4+–) 26.Rb2 (26.d4 Rb8 27.Raa7 Rb7 28.Rb7 Kg7+–) 26...Rc8 (26...f6 27.Qh5 Rf7 28.d4+–) 27.h3 (27.h4 Rc1 28.Kh2 f6+–) 27...Rc1 28.Kh2 Rc7 29.h4 (better 29.Rba2 f6 30.Qg3 e5+–) 29...Rd7 (29...f6 30.Qg3 Rg7 31.Qd6+–) 30.h5 Rd5 (30...f6 31.Qg3 (31.hg6?! fg5 32.Rba2 Ra8=) 31...Kg7 32.hg6 hg6 33.Rb8+–) 31.hg6 hg6 32.Rh4 Kg7 33.Qh6 Kf6 34.Qf8 Rd7 35.Qh8 Ke7 36.Rh7 (36.Rd4 Rd4 37.Qd4 e5 38.Qe5 Kd7 39.Rb7 Kc6 40.Rc7 Kb6 41.Qc5 Ka6 42.Ra7) 36...Kd6 37.d4 (37.Qd4 Ke7 38.Rf7 Kf7 39.Qd7 Kf6 40.Qd8 Kg7 41.Rb7 Kh6 42.Qh4) 37...Kd5 (37...Re7 38.Qe5 Kc6 39.Qc5 Kd7 40.Rb7 Kd8 41.Qe7 Kc8 42.Qd7) 38.Qe5 Kc6 (38...Kc4 39.Qc5 Kd3 40.Qc2) 39.Qc5 1–0. GuestDZJW – NormalVector, freechess.org, 2017.

6.Bc4 Nd5 7.a4 a6 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 cb5 12.Nb5 Bb5 13.Bb5+/– Nc6 14.Bb2 Qa5 15.Be2 Bb4 16.0-0 0-0 17.Qc2 Rc8 18.Ra1 Qc7 19.Qe4 Nce7 20.Ne5 f5 21.Qh4 g6 22.h3 Nc6 23.Nc6+/– Qc6 24.Qh6 Bf8+= 25.Qg5 Bg7 26.Bg7 Kg7 27.h4 Qe8 28.h5 Qe7 29.h6 Kg8 30.Qg3 Qc7 31.Qh4 Qe7 32.Qd4 e5?? 33.Qd5+– Qf7 34.Qe5 Kf8 35.Bb5 Qe7 36.Qh8 Kf7 37.Qg7 Ke6 38.d4 Qg7 39.hg7 Kf7 (40.Ra7 Rc7+–). toll (1605) – AllGood, ICC, 2003.

6.Bc4 Nd5 7.Qf3 c6 =.

6.Bc4 Bd6 7.Nf3 0-0 8.0-0 c6 9.a4 cb5 10.ab5 Be7 11.Be2 Qb6 Exerts pressure on the isolated pawn (11...Bd6 12.Qa4+=) 12.Nc3 (12.Bd4 Bc5+=) 12...Nd5 (12...Rc8 13.Ba3 Bd8 14.Ne5+=) 13.Nd5+= ed5 14.Bd4 (14.Qb3 Be6+–) 14...Qg6 (14...Bc5 15.Bc5 Qc5 16.d4+=) 15.Ne5 (15.Ra7 Ra7 16.Ba7 Bh3+–) 15...Qe6+= 16.Qb3 f6?? (better 16...Bf6 17.f4 a6+–) 17.Bf3+– (worse 17.Nd7 Qd7 18.Bf3 Bd6+–) 17...fe5 (17...Kh8 18.Nd7 Nd7 19.Bd5 Qf5+–) 18.Bd5 ed4 (18...Rf6 19.Be5 (19.Be6?! Be6 20.Qc3 ed4 21.Qd4 a5+–) 19...Rg6 20.Qc4+–) 19.Be6 Be6 (19...Kh8 20.Bd7 Nd7 21.Qe6+–) 20.Qe6 Rf7 21.Rac1 g6 (21...Nd7 22.Qd7 Bd8 23.Qd4+–) 22.Rc7 Kf8 (22...Nd7 23.Rd7 Re8 24.ed4+–) 23.Qc8 Kg7 24.Qb7 de3 25.Re7 ef2 (25...Re7 26.Qe7 Kg8 27.fe3 Nc6 28.Qe6 Kh8 29.Rf7 Kg8 30.Qf6 a6 31.Qg7) 26.Rf2 Re7 (26...a6 27.Rff7 Kh6 28.Rh7 Kg5 29.Qd5 Kf4 30.Rh4) 27.Qe7 Kh6 28.Rf7 Nc6 (28...Kh5 29.Rf4 a6 30.Qh4) 29.Rh7 1–0. Janek – Streiker, internet, 2017.

7.Nf3 0-0 8.0-0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 c6 12.Nc3 cb5 13.Nb5 Qb6 14.Qb1 Bb5 (14...Rc8 15.Bd4 Bc5 16.d3+=) 15.Bb5+/– Nc6 16.Ng5 (16.Bc6 Qc6 17.Ng5 g6+=) 16...h6 (16...g6 17.Bf6 Bf6 18.Ne4+=) 17.Bf6+/– hg5 18.Bc6 Bf6?? (Better is 18...Qb1 19.Rb1 gf6 20.Rb7 Rc8 21.Re7 Rc6+/–) 19.Qb6+– bc6 20.Qc6 1–0. Trkn – guest2345, ICC, 2004.

7.Nf3 0-0 8.0-0 c6 9.a4 a6 10.Nc3 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Nb5 Bb5 14.Bb5+= Qb6 (14...Qd5 15.Qb1+=) 15.Qa4 (15.Qe2 Rc8+=) 15...Nc6 (15...Rc8 16.d3+=) 16.Rc1 Na7 17.Bd3 Nd5?? (better 17...Nc6+=) 18.Bd4+– Qd6 19.Qa7 (19.Ba7?! Ra8 20.Rb1 b6+–) 19...b6 (19...Qb8 20.Qa1 Bf6 21.Bc2+–) 20.e4 Nf4 21.Ba6 g5 (21...Bd8 22.Be5 Qa3 23.Ra1 (23.Bf4?! Qc1 24.Bf1 Qc6+–) 23...Nh3 24.Kf1+–) 22.h3 (better 22.Bb6 Qa3 23.Rb1+–) 22...Ne2 (22...Bd8+–) 23.Be2 g4 (23...Bd8 24.e5 Qb4 25.Rc8+–) 24.hg4 Qf4 (24...Bd8+–) 25.Qe7 Qg4 26.Qf6 Rd8 (26...e5 27.Be5 Qg2 28.Kg2 Rd8 29.Qd8) 27.Qd8 1–0. Janek – Rilii, internet free game, 2017.

7.Nf3 0-0 8.a4 c6 9.0-0 cb5 10.ab5 Qe8 11.Qb3 Bc8 12.Nc3 Nbd7 13.d4 Nb6 14.Be2 Bd7 15.Rfc1 Nfd5 16.g3 Nc3 17.Bc3 (17.Qc3?! Bb5 18.Qe1 a5=+; 17.Rc3?! Nd5 18.Rcc1 a5+–) 17...Nd5 (17...f6 18.Bd2+–) 18.Ba5+– b6 19.Bd2 Bd6? (better 19...f5+–) 20.e4 Nc7 (20...Ne7 21.e5 Bb8 22.Bd3+–) 21.e5 Bb5 22.ed6 Be2 23.dc7 Bf3 24.Qf3 Rc8 (24...Qd7+–) 25.Bb4 Qd7 (25...a5 26.Bf8 Kf8 27.Qb7+–) 26.Bf8 Kf8 27.Ra7 Qd4 (27...Qd5 28.Qa3 Ke8+–) 28.Ra8 Qd7 29.Qa3 Ke8 30.Rb8 f6 31.Qa6 Ke7 32.Qc8 (32.Qc8 Qc8 33.Rc8 f5 34.Rh8 Kf6 35.c8Q Kg5 36.Qe6 h6 37.f4 Kg4 38.Qe2 Kh3 39.Qh5) 1–0. Pierre – Kuyce, internet, 2019.

7.Nf3 0-0 8.Nc3 c6 9.Qb3 cb5 10.Bb5 a6 11.Bd7 Qd7 (11...Nbd7 12.Ba3= (12.Qb7?? Nc5 13.Qa8 Qa8–+)) 12.Na4 Qd8 (12...Nd5 13.e4 b5 14.ed5 ba4 15.de6 ab3 16.ed7 ba2 17.Ra2 Nd7 18.Kd1=) 13.Nb6 (better 13.Qb7 Nbd7 14.Rc1+–) 13...Nbd7? (better 13...Ra7!?+=) 14.Na8+– Qa8 (14...Nc5 15.Qc2 Nd3 16.Ke2 Nb2 17.Qb2+–) 15.d4 b5 16.0-0 b4 (16...Qb7 17.Rac1+–) 17.a3 Rb8 (17...a5 18.ab4 Bb4 19.Bc3+–) 18.ab4 Bb4 (18...Rb4 19.Qc2 Rb6 20.Rfc1+–) 19.Qa4 (19.Ba3 Be7 20.Qd3 Bd8+–) 19...Nf8? (better 19...a5+–) 20.Qa6 Qa6 (20...Qe4 21.Rfc1+–) 21.Ra6 h6 22.h3 (22.Rfa1 Ne4+–) 22...Ne4 (22...Ng6 23.Ba3 Bc3 24.h4+–) 23.Ba3 Ba3 24.Ra3 Nd7 (24...g5 25.Ne5+–) 25.Rfa1 Kh7 (25...f6 26.Ra8 Ra8 27.Ra8 Kf7 28.Ra7+–) 26.Ra7 Rd8 (26...Nef6 27.Rc7+–) 27.Rc1 Kg6 (27...Nb6 28.Rf7 Nd5 29.Ra1+–) 28.Rcc7 (better 28.Rd7 Rd7 29.Ne5 Kf6 30.Nd7 Ke7+–) 28...Ndf6 (28...Nef6 29.e4! Rf8 30.e5+–) 29.Ne5 Kh7 30.Nf7 (30.Rf7 Ne8+–) 30...Rg8 31.f3 (better 31.Re7 h5+–) 31...Ng5 (31...Ng3 32.Nd8! Nd5 33.Rf7 Rd8 34.Rg7 Kh8 35.Rg3 Ne3 36.Rg6+–) 32.Ng5 hg5 33.Re7 Nd5 (33...Rd8 34.Rg7 Kh8 35.e4+–) 34.Re6 Rc8 (34...Rd8 35.Kf2+–) 35.Kh2 (better 35.Re5!? Nf6 36.Rg5 Ne8+–) 35...Rf8 (35...Rc3 36.e4 Nf4 37.Ree7+–) 36.Re5 (36.Re5 Rd8 37.Rg5 Ne3 38.Rgg7 Kh8 39.h4+–) 1–0. jaddwarrior (1940) – Brennybhoy (1895), ChessWorld.net, 2019.

7.Nf3 a6 8.a4 0-0 9.0-0 ab5 10.ab5 Ra1 11.Ba1 c6 12.Nc3 cb5 13.Bb5 Bb5 (13...Qc7 14.Qe2 (14.Qb3 Rc8 15.Rb1 Nc6 16.d3 Bd6 17.Ne4 Ne4 18.de4 e5=) 14...Rc8 15.Rb1 e5 16.d3 Nc6 17.Bc4 Bg4 18.h3 Bh5+=) 14.Nb5 Nc6 (14...Qd5 15.Bf6 Bf6 16.Qe2 Nc6 17.Rd1 Qb3 18.d4 Ra8=) 15.d4 (15.Bf6 Bf6 16.d4 Qd7 17.Qb3 Rc8 18.Ra1 e5=) 15...Qd5 16.Nc3 Qh5 17.Qb3 Rb8 18.h3 (18.Rb1 b5+=; 18.Qb6 Bd8=) 18...Qa5 (18...b5 19.Rb1+=) 19.Bb2 Qd8 20.Qb5 h6 21.Ra1 Qc8 (21...Bb4=) 22.Ba3 (22.e4 Qd8+=) 22...Ra8 (better is 22...Nd4!? 23.Nd4 Qc3–/+) 23.Qb2= Ba3 24.Ra3 Ra3 25.Qa3 Qd7 26.Qb2 Ne8 27.Ne4 Nd8 28.Ne5 ½–½. algernon (2555) – sgp (2420), net–chess.com, 2014.

7.Nf3 a6 8.a4 0-0 9.0-0 ab5 10.ab5 Ra1 11.Ba1 c6 12.Nc3 cb5 13.Nb5 A) 13...Bc6 14.d3 (14.Qe2 Nfd7 15.d4 Na6 16.Bc3 Nb6 17.Ba5 Bb4 18.Bb4 Nb4+=) 14...Nbd7 15.Nbd4 Nb6 16.Nc6 bc6 17.Bb3 Nfd5 18.Qc2 c5+=; B) 13...Nc6 14.Qb1 (14.d4 Qb6 15.Qe2 Rc8 16.Rb1 Nb4 17.Nc3 Qc7 18.Ne5 Bd6=) 14...Na5 15.Be2 Nd5 16.Rc1 f6 17.d4 Qb6 18.Bd3 Bb5+=.

7.Nf3 a6 8.a4 0-0 9.0-0 ab5 10.ab5 Ra1 11.Ba1 c6 12.Nc3 cb5 13.Be2 A) 13...Qa5 14.Qb1 (14.d3 Rd8 15.Qb3 b4 16.Ne4 Ne4 17.de4 Bc6 18.Qb2 Bf6+=) 14...b4 15.Ne4 Ne4 16.Qe4 Qh5 17.Rc1 Bc6 18.Qf4 Qg6+=; B) 13...b4 14.Nb1 (14.Nb5 Qa5 15.Nbd4 Qd5 16.d3 Rc8 17.Nd2 Nc6 18.Bf3 Qg5+=) 14...Bc6 15.Bf6 Bf6 16.d4 Qd6 17.Qd3 Rd8 18.Rd1 Be7+=.

7.Nf3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 cb5 12.Bb5 Bb5 13.Nb5 0-0 14.0-0 Qd5 15.Qa4 (15.Qb1 Nc6+=) 15...Nc6 (15...Rc8 16.Bd4=) 16.Nc3 (16.Bf6 Bf6 17.d4 Rc8=) 16...Qh5 (16...Qd3 17.Rb1 Rb8 18.Qb5 Qb5 19.Nb5=) 17.Rb1 (better 17.Ne2=) 17...Ng4? (better 17...Qa5!?=) 18.h3+– Nf2?? (better 18...Nge5 19.Ne5 Qe5 20.Rb7 Rc8+–) 19.Kf2+– Bh4 (19...Rb8+–) 20.Nh4 Qh4 (20...Rb8+–) 21.Qh4 Ne5 22.Rb7 Nd3 23.Ke2 Nc1 24.Kd1 Nd3 25.Ne4 f5 26.Rg7 Kh8 27.Qh7 1–0. gho8811h – lel340h, private online chess game, 2018.

6.Nf3 a6 7.Nc3 Qa5 8.ba6 Na6 9.Ne5 Bc6 10.a3 Bd6 11.Nc6 bc6 12.cd5 cd5 13.Bb5 Ke7 14.Qe2 Rab8 15.a4 Nb4 16.0-0 c4 17.Ba3 Nd3 18.Bd6 Kd6 19.e4 de4 20.Ne4 Ne4 21.Qe4 Ne5 22.Qd4 Ke7 23.Qe5 1–0. guest128 – guest183, ICC, 1999.

6.Nf3 dc4 7.Bc4 b6 (7...a6 8.Nc3=) 8.Ne5 (better 8.Qe2+=) 8...g6?? (better 8...a6 9.Nd7 Nbd7 10.ba6 Bd6+=) 9.Qf3+– (9.Nd7?! Nbd7 10.0-0 Bg7+=) 9...Nd5 (9...a6 10.Qa8 ab5 11.Nd7 Nbd7 12.Qd8 Kd8 13.Bb5 Bg7+–) 10.Qf7 1–0. Adlai – Spoim, corr, 2018.

6.Nf3 Be7 7.Nc3 dc4 (7...a6 8.ba6 Na6 9.Qb3=) 8.Bc4+= 0-0 9.0-0 a6 10.a4 ab5 11.ab5 Ra1 12.Qa1 b6 13.Ne5 (13.Rd1 Qc7+=) 13...Bd6 14.Ne2 Qc7 15.Nd7 Nbd7 16.g3 (16.f4 Rc8=) 16...Ne5=+ 17.d3 Nf3 18.Kg2 Qb7 19.e4 (19.Bf6 Ne1 20.Kh3 Qg2 21.Kg4 h5 22.Kh5 Qh3 23.Bh4 Qf5 24.Bg5 Qh7 25.Bh6 Qh6 26.Kg4 f5) 19...Ne4 20.Bg7?? (20.de4 Nd2 Double attack (20...Nd2 Decoy)) 20...Neg5-+ 21.Nf4 (21.Kh1 Nd2 22.f3 Nf1 23.Qf1 Kg7 24.Kg2-+) 21...Ne1 22.Kg1 Nh3!! (22...Nh3 23.Nh3 Qg2) 0-1. Nf3 (2105) – Micki, Rated Classical game, lichess.org, 2013.

6.Nf3 Be7 7.Be2 0-0 8.d3 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Bd6 12.Be5 Be5 13.Ne5 Qc7 14.Nd7 Nbd7 15.Nd2 Ra8 16.0-0 Ra2 17.Qb3?? Qa5 0–1. Trkn – radufotescu, itsyourturn.com, 2001.

6.Nf3 Be7 7.Be2 dc4 8.Bc4 a6 9.a4 0-0 10.0-0 ab5 11.ab5 Ra1 12.Ba1 Qb6 13.Qb3 Rd8 14.d4 Ne4 15.Nc3 Nd6 The pressure on the isolated pawn grows 16.Na4 Qc7 17.dc5 (worse is 17.Nc5 Nc4 18.Qc4 b6–/+) 17...Nc4 18.Qc4 Be8 19.Nd4 Bf6 20.Nb6 Be7 21.Rc1 e5 (21...Kh8 22.Bb2+/–) 22.Nb3 Kf8 23.h3 f6 24.Nd5 Qd7 25.Ne7 Qe7 26.Bb2 Bf7 27.Qa4 Rd3 28.Na5 White prepares the advance c6 28...g6 29.c6 bc6 30.Nc6 Nc6 31.bc6 Be6 32.Bc3 Qe8 (32...Kg7 33.Bb4 Qc7 34.Qb5+–) 33.Bb4 Kg8 34.Qa7 Bc8 35.Qc5 Qf7 36.Ra1 Rd5 37.Qb6 Qe8 38.Ra7 Qd8 39.c7 Qe8 40.Qf6 (better is 40.Ra8 Rd1 41.Kh2+–) 40...Rb5 (40...h6 41.Ra8 Rd1 42.Kh2 Rd7 43.Rc8 Qc8+–) 41.Bd6 (41.Qd8 Kf7 42.Ra8 Rb4 43.Rc8 Qe7 44.Qg8 Kf6 45.Rf8 Kg5+–) 41...Rb6 (41...Rb1 42.Kh2 Rb6+–) 42.Ra8 1–0. Svitek,Volker (2100) – Tierling,Detlef (2005), Frankfurt–ch, 2008.

6.a4 a5 7.Nf3 Bb4 8.Qb3 0-0 9.Be2 Qb6 10.Nc3 Be8 11.0-0 Bd7 (11...Nbd7!?+/–) 12.Ne5 Be8 13.d4 Ne4 (13...Nbd7!? 14.c5 Qc7+–) 14.Ne4+– dc4?? (better is 14...de4 15.f3 ef3 16.Rf3 Nd7+–) 15.Nc4 Qd8 16.Ba3 cb5 17.ab5 (17.Bb4?! bc4 18.Bc4 ab4 19.Qb4 Bc6+–) 17...Ba3 18.Ra3 b6 19.Ned6 Bd7 (19...Nd7 20.Rc1+–) 20.e4 f6 21.Rc1 Kh8 (21...Ra7 22.Qe3+–) 22.Qe3 Ra7 (22...a4 23.Bh5+–) 23.d5 e5 (23...ed5 24.ed5 f5 25.Nb6+–) 24.Nb6 1–0. pierred (2840) – samantho (1890), net–chess.com, 2015.

6.a4 a5 7.Nf3 h6 8.Nc3 Ng4 (8...Bd6 9.Ba3 Ba3 10.Ra3 cb5 11.ab5+=) 9.Qb3 Bb4 10.cd5 0-0 (10...ed5!? 11.bc6 Bc6+=) 11.dc6+– bc6 12.Be2 Qe7 13.0-0 Rd8 (13...e5 14.b6+–) 14.Qc2 e5 15.h3 Nf6 16.Ne4 c5 (better 16...cb5 17.ab5 Be6+–) 17.Ne5 Bf5 18.Nf6 Qf6 19.d3 Qg5 20.f4 Qg3 21.Rf3 Qh4 22.e4 Be6 (22...Bc8 23.Rd1+–) 23.f5 Bc8 24.f6! g6 (24...gf6 25.Ng6 Decoy) 25.Ng6! fg6 (25...Qg5 26.Kh2 Qg6+–) 26.f7 Kf8 27.Bf6 Qh5 (27...Qf6 28.Rf6 Nd7 29.Rg6+–) 28.Bd8 Be6 (28...c4 29.d4 Bg4 30.hg4 Qg4+–) 29.Be7! Ke7 30.f8Q Kd7 31.Rf7! Bf7 32.Qf7 Kc8 33.Qb2 Qg5 (33...Nd7 34.Qbg7 Qh3 35.gh3 Ra7 36.Qe8 Kb7 37.Qed7 Kb8 38.Qf8) 34.Qh8 Qd8 35.Bg4 Nd7 36.Qd8 Kb7 (36...Kd8 37.Qd7) 37.Qfd7 1–0. Karl – Berano, internet private, 2018.

6.a4 Bb4 7.cd5 cd5 (7...ed5 8.Nf3=+) 8.Nf3= 0-0 (8...Qe7 9.Be2=) 9.Be2 a6 (9...Qe7 10.0-0=) 10.0-0 ab5 (10...Qe7 11.Nc3=) 11.Qb3 Qe7 12.ab5 Ra1 13.Ba1 Rc8 14.Bf6 gf6 15.Nc3 Bc3 (15...b6 16.Na4 Ba5 17.Ra1+=) 16.dc3 Qc5 17.Qa4 (17.Rc1 e5+=) 17...Be8 (17...Qc3!? 18.Qg4 Kf8=) 18.Rc1+= Nd7 19.Qg4 Kf8 (19...Kh8 20.e4+=) 20.Qh4 Ke7 (20...Qa3 21.Rd1+=) 21.e4+/– de4 22.Qe4 Ne5 23.Nd4 f5? 24.Qb7+– Rc7?? 25.Nc6! Bc6 26.Qc7 Bd7 27.Qc5 Kf6 28.f4 Ng6 29.Qd4 Ke7 30.Rd1 Bc8 31.Qd8# 1–0. b4_player – opponent, gamecolony.com, 2007.

6.a4 Bb4 7.Nf3 0-0 8.Nc3!? +=.

6.a4 Bb4 7.Nf3 0-0 8.Be2 cb5 9.cb5 Bd6 10.0-0 a6 11.Qb3 ab5 12.ab5 Ra1 13.Ba1 Re8 14.d3 e5 15.Nbd2 e4 (better is 15...Qe7!?=) 16.de4+/– de4 17.Ng5 Be6 18.Ne6 Re6 19.Bc4 Re7 20.Bf6 gf6 21.Bd5 f5 22.Ra1 (22.f3 Qc7+/–) 22...Nd7 (better is 22...Rd7!? 23.Nc4 Bh2 24.Kh2 Rd5+=) 23.Nc4+= (worse is 23.Bb7 Nc5 24.Ra8 Qa8 25.Ba8 Nb3 26.Nb3 Ra7=) 23...Nc5 24.Qa2 (better is 24.Qc3!? Rd7 25.Nd6 Rd6 26.Bc4+=) 24...Bh2+= 25.Kh2 Qd5 26.Nb6?? (better is 26.Qb2 Re8 27.Qd4+=) 26...Qd6–+ 27.g3 (27.Kg1 Qb6 28.Qd5 Re8 (28...Qb5?! 29.Ra8 Kg7 30.Qf5–+) 29.Qf5 h6–+) 27...Qb6 28.Qd5 Nd3 29.Ra8 Kg7 30.Qf5 Qg6 31.Qc8 Kf6 32.Kg1 Ne5 33.Rb8 Qh6 34.Qh8 Qg7 35.Qd8 Ke6 36.Qc8 Kf6 37.Rb7?? Rb7–+ 38.Qb7 Qh6?? 39.Qe4+= Qh3 40.Qf4 Qf5 41.Kg2 Qf4–/+ 42.ef4 Nd7 43.g4 Kg6 44.Kf3 f5 45.g5 h6 –+. Starr,Albert Martin – Sandberg,Evan, San Francisco Konig mem, 2006.

6.a4 Bb4 7.Nf3 0-0 8.Ne5 Be8 9.Nd3 Bd6 10.Ne5 (10.cd5 cd5 11.g3 Nbd7+=) 10...Qc7 11.f4 cb5 (11...Nbd7 12.Nd7 Nd7 13.Nc3+=) 12.cb5 (12.ab5 Nbd7=) 12...Ne4 13.Be2 f6 14.Nd3 a5 15.0-0 Nd7 16.Nf2 (16.Nc3!?=) 16...Nf2+= 17.Rf2 Bg6 18.d4 Nb6 19.Na3 Rfc8 20.Rc1 Qd7 21.Bd3? (better is 21.Qb3–/+) 21...Bd3–+ 22.Qd3 Na4 23.Qb3 Nb2 24.Rc8 Rc8 25.Qb2 Bb4 26.Nc2 Qb5 27.Nb4 ab4 28.Rf1 (28.f5 ef5 29.h3 b3–+) 28...b3 29.Rb1 (29.Qd2–+) 29...Rc2 (29...Rc2 30.Qc2 bc2 31.Rb5 c1Q 32.Kf2 Qc6–+) 0–1. algernon (2440) – asterique (2355), net–chess.com, 2015.

6.a4 cb5 7.cb5 a6 8.Nc3 ab5 9.Bb5 Bb5 10.Nb5 Bc5 (10...Be7 11.Nf3=) 11.Qc2 (11.Bf6 gf6 12.Rc1 Qe7+=) 11...b6 12.d4 Bd6 13.Nf3 0-0? (13...Bb4 14.Bc3 Be7 15.Ne5=) 14.0-0 (14.Nd6 Qd6 15.Ba3 Qd8 16.Bf8 Qf8+-) 14...Na6? (better 14...Be7=) 15.Nd6+- Qd6 16.Ba3 Nb4? (16...Qc7 17.Qc7 Nc7 18.Bf8 Kf8 19.Rfc1+-) 17.Qd2 (17.Qb3 Qd7 18.Bb4 Rfc8+-) 17...Ne4? (better 17...Ra4 18.Qb2 Rc8+-) 18.Qb4 (worse 18.Bb4 Nd2 19.Bd6 Nf1 20.Bf8 Ne3 21.fe3 Kf8+-) 18...Qb4 19.Bb4 Rfc8 20.h3 White prepares a5 20...Rc4 21.Rfb1 b5 (21...f6 22.Ne1+-) 22.a5 (22.ab5 Ra1 23.Ra1 h5+-) 22...Nc3 (22...Rc2 23.Bc5 Nc5 24.dc5 Rc5 25.a6+-) 23.Rb3 (23.Bc3 Rc3 24.Rb5 Rc7+-) 23...Ne2 (23...Ne4 24.Ne1+-) 24.Kh2 (24.Kf1 Rc1 25.Rc1 Nc1+-) 24...Rc2 (24...Nc1 25.Rbb1 Nd3+-) 25.Bc5 Nc3 26.a6 Ne4 (26...f6+-) 27.Rb5 Rf2 (27...Nc3 28.Rb3 h6+-) 28.a7 Nc5 29.Rb8 Rb8 30.ab8R (30.ab8Q) 1-0. iamdudum (1625) – mohammadd, Rated Classical game, lichess.org, 2013.

6.a4 cb5 7.cb5 Be7 8.Nf3 0-0 9.Be2 a6 10.0-0 ab5 11.ab5 Ra1 12.Ba1 Qe8 13.Nc3 b6 14.Qb3 Bc5 (14...Qd8 15.Rc1+=) 15.d4 (15.Na4!? Qd8 16.Bf6 Qf6 17.d4+/-) 15...Bd6+= 16.Ne5 Be5? (better 16...Qe7+=) 17.de5+- Ne4 18.Bd3?? (18.Ne4 de4 19.Bd4 Qc8+-) 18...Nc3? (18...Nd2 19.Bh7 Kh7 20.Qc2 Ne4=) 19.Qc3?? (19.Bc3 Qd8+/-) 19...Qc8?? (better 19...Bb5 20.Rc1 Bd3 21.Qd3 Qd7-/+) 20.Qd4 Qc5 21.Bb2 Qd4 (21...Rc8!? 22.Ra1 h6+/-) 22.Bd4+- (worse 22.ed4 Rc8+/-) 22...Rc8 23.Bb6 Rc1?? (better 23...Rc3 24.Be2 Rc2+-) 24.Bd4 (24.Bd4 Rf1 25.Kf1+-) 1-0. BeepBeepImAJeep (2645) - EMMANUEL32, lichess.org, 2015.

6.a4 cb5 7.cb5 Be7 8.Nf3 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Nc3 0-0 13.0-0 Be8 14.Qb3 Nbd7 15.Bb2 Nc5 16.Qc2 Qb6 17.Ra1 Bd7 18.Ba3 Re8 (18...Ra8!?+=) 19.d4+/- Nce4 20.Na4 (20.Ne4 Ne4 21.Be7 Re7+/-) 20...Qa7 (20...Qd8 21.Be7 Qe7 22.Nb6+=) 21.Be7+/- Re7 22.Ne5 Qb8 23.Nb6 Be8 24.Ra8 (better 24.Rc1 Nd6 25.Nc8 Nc8 26.Qc8 Qc8 27.Rc8+/-) 24...Qa8?? (better 24...Qc7 25.Qc7 Rc7+=) 25.Na8+- Nf2 (25...Nd6 26.b6+-) 26.Kf2 Ne4 27.Kg1 Bb5 (27...f6 28.Nf3 g5+-) 28.Bb5 f6 29.Qc8 Re8 30.Qe8 1-0. BeepBeepImAJeep (2665) - xonion (2120), lichess.org, 2016.

6.a4 b6 7.Nf3 cb5 8.cb5 a6 9.Nc3 Bb4 10.Qb3 Bc3 11.Bc3 0-0 12.Be2 ab5 13.Bb5 (13.ab5 Ra1 14.Ba1 Ne4+=) 13...Bb5 14.Qb5 Ne4 15.Bb4 (15.Bd4 Nd7=) 15...Nd6=+ 16.Bd6 Qd6 17.0-0 Ra5 18.Qb2 Nd7 19.Nd4 Rfa8 20.Nb5 Qe5 (20...Qb8 21.Nc3=+) 21.Nc3 (21.d4!? Qf5 22.Rfc1=) 21...d4=+ 22.ed4 Qd4 Attacks the isolani on a4 23.h3 (23.Rfe1 Rf5 24.Re2 Ne5=+) 23...h6 24.Qc2 (24.Ra2 R8a6-/+) 24...Nc5 25.Nb5?? (25.Ra3 b5-/+) 25...Qf4 (better 25...Rb5 26.ab5 Ra1-+) 26.Nc3 (26.d4 Na4 (26...Ra4?! 27.Ra4 Na4 28.Ra1=) 27.Rfb1 Qb8-/+) 26...Na4 27.Ne2 Qe5 28.d4 Qd5 29.Rfb1 b5 30.Rb4 Qd8 31.Qb1?? (31.Rab1 Rb8-/+) 31...Rb8 (better 31...Nc3! 32.Ra5 Nb1 (32...Ne2?! 33.Kf1 Ra5 34.Ke2-+) 33.Ra8 Qa8 34.Rb1 Qa2-+) 32.Qd1 Rc8 33.Rab1 Qd7 34.Qb3 Rb8 35.Qg3 Rb7 36.Nf4 Qc7 37.Qg4 Nc3 38.Nh5 (38.Re1!?-/+) 38…f5-+ (38...f5 39.Qg6 Qf7 40.Qf7 Kf7-+) 0-1. iamdudum (1805) - irinakursk (1765), Rated Classical game, lichess.org, 2013.

6.a4 dc4 7.Bc4 a6 8.Nc3 Qc7 9.Qb3 (9.Be2 ab5 10.ab5 Ra5+=) 9...ab5= 10.ab5 Ra1 11.Ba1 cb5 (11...Qa5 12.Bb2=) 12.Nb5+– Bb5 13.Bb5 Nfd7 (13...Nbd7 14.Nf3+–) 14.Nf3 (14.Ne2+–) 14...Nc6 (14...Qc1 15.Qd1 Qd1 16.Kd1+–) 15.Ke2 (15.0-0!? Nf6+–) 15...Be7 16.Rc1 (16.Bg7!? Rg8 17.Bc3 Rg2 18.Ra1+–) 16...0-0+= 17.Qc4 (17.Bb2 Ra8+=) 17...Rc8 18.Bc6 bc6 (18...Qc6?? 19.Qd4 Nf6 20.Rc6 bc6 21.Qa7+–) 19.d4 (19.Rb1 Ra8+=) 19...Qa7 20.Nd2 (20.Bc3 Nf6=) 20...Nb6=+ 21.Qd3 Nd5 22.Bc3 h6 (22...Qa3 23.Qc2=+) 23.g3 (23.Kf3 c5 24.Nc4 Qb7=+) 23...Qa3 24.Qc2 c5 25.Qb2?? (better 25.Bb2 Qa8 26.Qb3=+) 25...cd4–+ 26.Qb7 (26.Qa3 Ba3 27.Bb2 Rc1 28.Bc1 Bc1 29.Nb3–+) 26...Nc3 27.Rc3 Qc3 (27...Qc3 28.ed4 Bb4–+) 0–1. Meckel,Helmut (1750) – Palmi,Herbert (2080), 5th Arber Open, 2016.

6.a4 dc4 7.Bc4 Be7 8.Nf3 0-0 9.0-0 Qb6 10.Bd4 Qc7 11.d3 cb5 12.ab5 Ne8? (Better is 12...a6!?+=) 13.Ra7+– Ra7 14.b6 (14...Qc8 15.ba7+–) 1–0. pcmvr (2055) – pascals1975, ChessWorld.net, 2003.

6.a4 dc4 7.Bc4 Be7 8.Nf3 cb5 9.Bb5 (9.ab5 0-0=) 9...Qb6 (9...0-0 10.Bf6 Bf6 11.d4=) 10.Qb3 0-0 (10...Nc6 11.Ba3=) 11.0-0 (11.Bd4 Qc7=) 11...a6 (11...Nc6 12.a5 Na5 13.Ra5 Qa5 14.Bf6 Qb5 15.Qb5 Bb5 16.Be7 Bf1 17.Kf1–+) 12.Bc4 (12.Bd4 Qc7 13.Be2 Bc6=) 12...Qb3 13.Bb3 Nc6 14.d4 (14.d3 b5=) 14...Na5+= 15.Bc2 (15.Nbd2 Nb3 16.Nb3 b5+=) 15...Rac8 (15...Nc4 16.Bc3+=) 16.Bd3= Bc6 (16...Nc4 17.Bc3=) 17.Nbd2 Bb4 18.Rfc1 Nd5 (better is 18...b5=) 19.Nc4?? (better is 19.Ba3=) 19...Nb3–+ 20.Nce5? (better is 20.Nfe5–+) 20...Nc1 21.Bc1 f6 (better is 21...Ba4 22.e4 Nc3–+) 22.Bc4?? (better is 22.Nc6 Rc6 23.e4–+) 22...fe5 23.Ne5 Bd6 (23...Bd6 24.e4 Be5 25.de5 Nc7–+; 23...b5 24.ab5 Bb5 25.Bb3–+) 0–1. Trkn – Barnes,Will, itsyourturn.com, 2000.

6.a4 Bc5 7.Nc3 0-0 8.Nf3 a6 9.Qb3 (9.cd5 ed5 10.Be2 Re8=) 9...ab5 10.cb5 Qb6 (10...Qa5 11.Be2=+) 11.Be2 (11.d4 Bd6 12.Bd3=) 11...Ne4 (11...Bd6 12.0-0=) 12.0-0 (12.Ne4 de4 13.Ng5 cb5 14.Ne4 b4+=) 12...cb5 (12...Be7 13.Ne4 de4 14.Ne5+=) 13.Bb5 (13.ab5 Ra1 14.Ra1 Be7+=) 13...Nc3 14.Qc3 Bb5?? (better 14...f6 15.Rfc1 Rc8=) 15.Qg7 (15.ab5?! d4 16.Nd4 Bd4 17.Qd4 Qd4 18.Bd4 Nd7+-) 1-0. iamdudum (1745) - milad124 (1605), Rated Classical game, lichess.org, 2013.

6.a4 Be7 7.Nf3 h6 8.Nc3 0-0 9.Be2 Bd6 (9...Qc7 10.Qb3+=) 10.0-0+– Bc8 11.d4 dc4 (11...Nbd7 12.Qc2+–) 12.Bc4 Nd5 (12...Nbd7 13.e4 e5 14.h3+–) 13.e4 Nc3 14.Bc3 cb5 15.ab5 Qc7 (15...Nd7 16.Qb3+–) 16.Qb3 b6 (16...Nd7 17.Rfc1+–) 17.Rfc1 (17.e5 Be7 18.d5 Bc5+–) 17...Bb7 (17...Nd7 18.e5 Be7 19.Bb4 Bb4 20.Qb4+–) 18.d5 (18.Be6 fe6 19.Qe6 Rf7+–) 18...e5 19.Nd2 (19.Nh4 Nd7+–) 19...Nd7 20.f3 Nc5 21.Qb2 Qe7 22.Nb3 (22.Kh1 Qc7+–) 22...Rfc8 23.Bb4?? (23.Nc5 Rc5 24.Bd2 Rc7+–) 23...Rc7?? (better 23...Ne4 24.fe4 Bb4–/+) 24.Bc5 Bc5 25.Nc5 Rc5 26.Be2 Qd6 27.Rc5 Qc5 28.Kf1 a5?? (better 28...Qd6+–) 29.ba6+– Bc8 30.Bb5 (better 30.Qe5 f6 31.Qe8 Kh7+–) 30...Ra7 31.Ra2 (31.Bd3 f6 32.Rc1 Qf8 33.Qb6 Ra8+–) 31...Qd6 (31...f5 32.ef5 Bf5+–) 32.Qc1 Bd7 33.Bd7 Qd7 34.Qc6 Qd8 35.Qb7!! Qg5 (35...Rb7 36.ab7 Passed pawn) 36.Qa7 Qc1 37.Kf2 Qc4 38.Re2 Qd4 39.Kf1 (39.Kg3 f5 40.Qb8 Kh7+–) 39...g5 40.g4 (40.Qb8 Kh7 41.a7 Qa1 42.Kf2 g4 43.a8Q Qa8 44.Qa8 Kg7 45.fg4 b5 46.d6 b4 47.d7 b3 48.d8Q Kg6 49.Qab8 Kg7 50.Qg8 Kf6 51.Qd6) 40...Qd1 41.Kf2 Qh1 42.Qb8 Kh7 43.Qe5 (43.Qe5 Qc1 44.a7 Qc5 45.Kg2+–) 1–0. Sebesta,Petr (1610) – Havlik,Vlastimil (1780), 12th Orlova Open A, 2015.

6.a4 Be7 7.Nf3 h6 8.Be2 0-0 9.d4 a6 10.Nc3 Bb4 11.0-0 Bc3 (11...dc4 12.ba6 Na6 13.Bc4=) 12.Bc3+= ab5 13.ab5 (13.cb5 Qe7+=) 13...Ra1 14.Qa1 dc4 15.Bc4 cb5 16.Bb3 (16.Bd3 Bc6=) 16...Bc6 17.Ne5 Nbd7 18.Nc6 bc6 19.Ba5 (19.Bb4 Re8=) 19...Qb8 (19...Qa8 20.Bb4 Rc8 21.Qb1=+) 20.Qa3 (20.Bb4 Rc8=+) 20...Ng4 21.g3 Qb7 (21...Qa7 22.Ra1 Rc8 23.Qd6-/+) 22.Qd6 Ndf6 23.h3 (23.Bb4 Re8=+) 23...Ne4-/+ 24.Qb4 (24.Qf4!? Ngf6 25.Kh2-/+) 24...Ngf6 25.Kg2 (25.Rc1-/+) 25...Ng5 (better 25...c5 26.dc5 Nd2 27.Kg1 Nf1 28.Kf1 Qh1 29.Ke2 Qh3-+) 26.h4?? (better 26.f3=+) 26...c5-+ 27.f3 cb4 28.Bb4 (28.hg5 Nd5 29.Bd5 Qd5 30.Bb4 Rc8-+) 28...Ngh7 (better 28...Ng4! 29.e4 Nf3 30.Kf3 Nh2 31.Kg2 Nf1 32.Kf1-+) 29.Bf8 Nf8 30.Rb1 (30.Rc1 Qa8 31.Kf2 Qa3-+) 30...Nd5 (30...Qc8 31.Bd1 Nd5 32.Kf2-+) 31.e4 (31.Bd5 Qd5 32.Rb2 Qc4-+) 31...Nc3 32.Rb2 (32.Rf1 Qd7 33.Rf2 Qd4-+) 32...b4 (32...Qe7!? 33.Rf2-+) 33.Rd2 White plans d5 33...Nd7 34.d5 Nc5 (34...ed5!? 35.ed5 Qa7 36.d6-+) 35.Bc4 (35.d6 Qd7 36.Bc4 e5-+) 35…Nb1 (35...Nb1 36.Rb2 Na3-+) 0-1. upep (1750) - alex1311 (1680), Rated Classical game, lichess.org, 2013.

6.Qb3 dc4 7.Bc4 Be7 (7...Bd6 8.Nf3=) 8.Nf3= cb5 (8...0-0 9.0-0=) 9.Bb5 Nc6 (9...0-0 10.0-0=) 10.Nc3 (10.0-0 0-0=) 10...a6 (10...Rc8 11.0-0+=) 11.Be2 (11.Bd3 b5+=) 11...0-0 (11...e5 12.Ng5 (12.Qb7 Na5 13.Qa8 Qa8–+) 12...0-0 13.Rc1+= (13.Qb7? Rb8 14.Qa6 Nb4–+)) 12.0-0 (12.Qb7?? Na5 13.Qa8 Qa8–+) 12...Na5 (12...e5 13.Qc2= (13.Qb7? Na5 14.Qa8 Qa8–+)) 13.Qd1 (13.Qc2 Rc8=) 13...Rc8 (13...b5 14.d4=) 14.Ne5 (14.Rc1 Bd6=) 14...Bd6 15.Nd7 (15.d4 b5=) 15...Qd7 16.Qa4 (16.d3 Rfd8=) 16...Nc6 (16...Qa4 17.Na4 Nd5 18.Rfc1=) 17.Rac1 (17.Rfc1 Rc7=) 17...Rfd8 (17...Rc7 18.Ne4 Ne4 19.Qe4=) 18.d4 (18.d3 Qc7 19.Qh4 Qe7=) 18...h6 (18...b5!? 19.Qd1 Na5+=) 19.Bf3= Rc7 (19...Qc7 20.h3=) 20.Ne4 Ne4 21.Be4 Rdc8 (21...f5 22.Bc6 Rc6 23.Qb3=) 22.a3 (22.Ba3 Be7=) 22...Qe7 23.g3 (23.f4 f5 24.Bf3 Na7+=) 23...Qg5 (23...Na7 24.Rc7 Rc7 25.Rc1+=) 24.Kg2 (24.Rfd1 Qe7=) 24...h5 (24...a5 25.f4 Qh5 26.Qd1=) 25.h4 (25.Rfd1 Qe7+=) 25...Qe7 (25...Qg4 26.Bf3 Qg6 27.Rfd1+=) 26.Rc3 g5 27.hg5+/– Qg5 28.Rh1 Kg7? 29.f4 Qa5+/– 30.Qd1 Rh8?? 31.Rc5 Qb6? 32.Rg5 Kf8+/– 33.Qe2 Rg8 34.Rg8 Kg8 35.Rh5 Kf8 36.d5 ed5 37.Bf6 Threatening mate... how? Ne7 38.Rh8 Ng8 39.Qg4 Ke8 40.Qg8 Bf8 41.Qf8 (41.Qf8 Kd7 42.Qf7 Kd6 43.Qd5#) 1–0. Bittner – Peschke, corr, 1987.

6.Qb3 Be7 7.Nf3 dc4 8.Bc4 cb5 9.Bb5 Bb5 10.Qb5 Qd7 11.Nc3 (11.Qd7 Nbd7 12.Ke2 Rc8=) 11...Nc6 12.0-0 0-0 13.Rac1 a6 14.Qe2 b5 (14...Rfd8 15.d4=) 15.d4 (15.d3 Rac8=) 15...Rfd8 (15...b4 16.Ne5 Ne5 17.de5 bc3 18.ef6 cb2 19.fe7=) 16.Rfd1 (16.Ne5 Ne5 17.de5 Ne8=) 16...Nd5 (16...Rac8 17.e4=) 17.Ne5 (17.e4 Nc3 18.Bc3 Ba3=) 17...Ne5 18.de5 Nc3 19.Bc3 Qb7 20.Rd8 (20.Bd4 Rac8=) 20...Rd8 21.f4 (21.Bd4 Rc8 22.Rc8 Qc8+=) 21...Rc8 22.Qd2 b4 (22...Rc4 23.Bd4+=) 23.Bd4 Rc1 (23...Rc6 24.Qd1+=) 24.Qc1= g6 (24...Qd7 25.Qc4=) 25.Qc2 a5 26.Kf2 (26.Kh1 Qd7=) 26...h5 (26...Qd7 27.Bb6=) 27.e4 a4 28.Qa4 (better is 28.Ke3!? b3 29.ab3 ab3 30.Qb2+=) 28...Qe4–/+ 29.Be3 Qd5 (better is 29...Bc5! 30.Bc5 Qf4 31.Ke2 Qc4 32.Kf3 Qc5 33.Qa8 Kg7–+) 30.Qb3 Qc6 31.h3 (31.Qd3 Kg7=) 31...Qe4+= 32.g3 (32.Kg1 g5 33.fg5 Qe5+=) 32...Qh1 (32...h4 33.g4–/+) 33.h4 Qh2 34.Kf3 Qh1 35.Ke2 (35.Kf2!?=) 35...Qg2 (35...Bf8 36.Bf2+=) 36.Bf2 Qe4 37.Kd2 Qg2 (37...Bf8 38.Kd1+=) 38.Ke2 Qe4 39.Kd1 (39.Kd2!?=) 39...Kg7 ½–½. Kalanyos,Ferenc (2000) – Zamodics,Peter (1890), HUN–chT2 Asztalos, 2007.

6.bc6 Bc6 7.cd5 Bd5 8.f3 Qb6 9.Bd4 Nc6 1–0. Valpa – MasterStefan, playchess.de, 2004.

6.bc6 Bc6 7.cd5= Bd5 8.Nf3 (8.Nc3 Bc6=) 8...Bb4 (8...Ne4 9.Bb5 Nc6 10.0-0=) 9.Nc3 0-0 (9...Bc3 10.Bc3 Nbd7 11.Be2=) 10.Nd5 Nd5 11.Be2 (11.e4 Nf6 12.Qa4 Be7=) 11...Nc6 12.0-0 Nf6 (12...Rc8 13.Rc1=) 13.h4 (13.Qb3 Nd5+=) 13...Bd6 (13...Rc8 14.Rc1=) 14.Bd3 (14.Qb3 Rb8=) 14...Qc7 (14...Rc8 15.Bf6 Qf6 16.Qb1+=) 15.Bf6= gf6 16.g3 (16.Rc1 Rfd8+=) 16...f5 (16...Rfc8 17.Be2=) 17.Ng5 (17.Bb5=) 17...Be7 (better is 17...h6!? 18.Qh5 Kg7=) 18.Qh5+= Threatening mate: Qxh7 18...Bg5 19.Qg5 (worse is 19.hg5 Rfd8 20.Bb5 Rd2+=) 19...Kh8 20.Qf6 Kg8 21.Qg5 (21.Be2 Rac8+=) 21...Kh8 22.Qf6 (22.Bc4 Rac8+=) 22...Kg8 23.Qg5 (23.Be2!?+=) 23...Kh8= 24.Qf6 (24.Bc4 Rfd8+=) ½–½. Nautiluschess – ths, ICS blitz, 2001.

6.bc6 Nc6 7.Nf3 +=.

6.Qf3 cb5 7.Bf6 Qf6 8.Qf6 gf6 9.cd5 a6 =.

6.Qf3 cb5 7.Bf6 Qf6 8.Qf6 gf6 9.cd5 b4 =.

6.Nf3 a6 7.a4 (7.cd5 ab5 8.dc6 bc6=) 7...ab5+= 8.cb5. Wozniak – Lach, corr 1. AMM Poland, 1991.

6.Nf3 Bb4 7.Be2 0-0 8.a4 Ne4 9.0-0 c5 10.d3 Nf6 11.Bc3 a5 12.Bb4 cb4 13.cd5 (13.c5 Qc7 14.d4 Rc8+/–) 13...Nd5 14.Qd2 b6 15.Ne5 f6 16.Nd7 Nd7 17.Bf3 Nc5 18.Qc2 Rc8 19.Qe2 (19.d4 Nb7 20.Qe4 Qd6=) 19...Nc3 20.Nc3 bc3 21.d4 Nb3 22.Ra3?? (22.Bb7 Rc7 23.Rab1 c2–+ (23...Rb7 24.Rb3 Rc7 25.Rc1+/–)) 22...c2 23.Bc6 c1Q 24.Rc1 Nc1 25.Qc2 e5 26.Qc1 ed4 27.ed4? (better is 27.Rd3=) 27...Qd4–+ 28.Qe1 Rcd8 29.Bf3 f5 (29...Rfe8 30.Qf1–+) 30.g3 (30.Qe6!? Rf7 31.h3–+) 30...f4 31.Qe2 fg3 32.hg3 Rd6 33.Ra2 Rh6 34.Ra1?? Qa1 (35.Qd1 Qf6 36.Bd5 Kh8–+) 0–1. Hasler,Ueli – Tortoza,Carlos, CiF, 2006.

6.Nf3 cb5 7.cb5 Bd6 8.Be2 0-0 9.0-0 Qc7 10.g3 (better is 10.Bf6!? gf6 11.Qa4+=) 10...e5+= 11.Ba3 Bh3 12.Re1 e4 13.Nd4 Re8 14.Bd6 Qd6 15.a4 Nbd7 16.Bf1 Bg4 17.Be2 Ne5 18.Bg4 Nfg4 19.Qe2 Qh6 20.h4 1–0. Valpa – Abzgpf, playchess.de, 2003.

6.Nf3 cb5 7.cb5 Bd6 8.Be2 a6 9.a4 (9.Qa4 0-0=) 9...ab5 (9...Qe7 10.Nc3=) 10.ab5 Ra1 11.Ba1 0-0 12.0-0 b6 (12...Ne4 13.Bd4=) 13.Qb3 (13.Be5 Be5 14.Ne5 Ne4=) 13...Bc8 (13...Qe7 14.Nc3=) 14.d3 (14.Be5 Be5 15.Ne5 Nfd7 16.Nd7 Bd7+=) 14...Bb7 (14...Nbd7 15.d4=) 15.h3 (15.Be5 Be5 16.Ne5 d4=) 15...Nbd7 16.Nbd2 e5 (16...Qe7 17.Bf6 Nf6 18.d4=) 17.Rb1 (17.d4 e4 18.Nh4 g6=) 17...Re8 Black prepares e4 (17...Qe7 18.Rc1+=) 18.g4 (18.d4 e4 19.Nh4 Bb8=) 18...h6 (18...Qe7 19.d4+=) 19.Bb2 (19.Rc1 Qe7+=) 19...e4 (19...Qe7 20.d4+=) 20.de4 (20.Nd4 Nc5 21.Qc2 ed3 22.Bd3 Nfe4=) 20...de4 21.Nd4 Nc5 22.Qc2 ½–½. mr5reasons1 (1680) – chessjester11 (1655), gameknot.com, 2012.

6.Nf3 dc4 7.bc6 Bc6 8.Bc4 +=.

6.Nf3 dc4 7.bc6 Nc6 8.Bc4 Be7 9.0-0 0-0 10.d4 Rc8 11.Nc3 Na5 12.Bd3 a6 (12...Nc4 13.Bc4 Rc4 14.Ne5=) 13.Re1 (13.Ne5 Nc6=) 13...b5 14.a3 (14.Ne5 Nc4 15.Qe2 Nb2 16.Qb2 Bd6=) 14...Nc4 15.Bc4 bc4 16.a4 (16.e4 Qc7=) 16...Bb4 17.Qc2 Bc3 (17...Bc6 18.Ne5=+) 18.Qc3 (18.Bc3 Bc6 19.e4 Ne4 20.Re4 Be4 21.Qe4 Qd5=) 18...Bc6 (18...Nd5 19.Qc1 Nb4 20.Qc3=) 19.a5 (19...Bf3 20.gf3–+). gtate (1705) – larsuno, net–chess.com, 2001.

7.Qb3 ab5 8.ab5 Ra1 9.Ba1 Qb6 10.Nc3 Be7 11.Nf3 0-0 12.Be2 h6 13.0-0 Na6?? (13...dc4 14.Bc4 cb5 15.Nb5=) 14.d4?? (better 14.Na4 Qa5 15.ba6 dc4 16.Qb7 Qa4 17.Bf6 Bf6 18.Qd7 Qa6 19.Rc1+–) 14...dc4= 15.Qc4 (15.Bc4 cb5 16.Bb2 Rc8=) 15...cb5 16.Nb5? (better 16.Qb3!?=) 16...Rc8–/+ 17.Qb3 Nc7 18.Nd2? (better 18.d5 Nb5 19.Nd4 Nd5 20.Nb5 Bb5 21.Bb5–/+) 18...Nb5–+ 19.Rb1 Ra8 (19...Nd5 20.Nc4 Qc7 21.Bb2–+) 20.Bb5 (20.Bb2 Nd5–+) 20...Qb5 21.Qb5 Bb5 22.Bc3 (22.Rb5 Ra1 23.Rb1 Rb1 24.Nb1 b5–+) 22…Bc6 0–1. jaddwarrior (2045) – Sacrifice (2000), ChessWorld.net, 2015.

7.Qb3 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nf3 0-0 11.Be2 (11.Bd4 dc4 12.Bc4 cb5 13.Bb5 Nc6=) 11...Qb6 (11...dc4 12.Bc4 cb5 13.Bb5=+) 12.Nc3 Na6?? (better is 12...dc4 13.Bc4 Rc8=) 13.Na4+– Nc5 (13...Qa5 14.ba6 dc4 15.Qb7 Qa4 16.Bf6 Bf6 17.Qd7 Qa1 18.Bd1 Qa6+–) 14.Bf6 Bf6 15.Nb6 Nb3 16.Nd7 Ra8 17.Nf6 gf6 18.0-0 e5 19.bc6 e4 20.cb7 Rb8 21.Nd4 Nd2 22.Rd1 Nc4 23.Nf5 Rb7 24.Bc4 (24...Rc7 25.Bd5+–) 1–0. De Visser,Arno – Ruiter, (year?).

7.Qb3 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nf3 Qa5 11.Bc3+= Qb6 12.Be5 (12.cd5 ed5 13.Bd4 c5 14.Bf6 Bf6 15.Qd5 0-0+=) 12...Na6= 13.Qb2 (13.Nc3 Nc5 14.Qc2 0-0=) 13...cb5 (13...Nb4 14.bc6 Qc6 15.cd5 Nfd5 16.Bg7+=) 14.cb5= Nc5 15.Nc3 0-0 16.Be2 Ra8 17.0-0 Ne8 (17...Qa5 18.Rc1=) 18.Ra1 Ra1 19.Qa1 f6 20.Bg3 (20.Bd4 Nc7=) 20...Nc7 Increasing the pressure on the isolated pawn on b5 (20...Nd6 21.Qa8 Bf8 22.Bd6 Qd6 23.Bd1=) 21.h3 (21.d4 Ne4 22.Ne4 de4+=) 21...e5 (21...Ne4!?+=) 22.Qa2+= Be6 23.d4 (better is 23.Qc2!? Bd6 24.d4 ed4 25.ed4 Bg3 26.fg3+=) 23...Ne4+= 24.Na4 Qa5 25.b6 (25.de5 Ng3 26.fg3 fe5–/+ (26...Nb5?! 27.Bb5 Qb5 28.Nd4=)) 25...Ng3 26.fg3–/+ Na8 27.Qb3 e4–+ 28.Nc5? Bc5 29.dc5 ef3 30.Bf3? Qc5 31.Qa4 Qc8 32.Qb5 Qd7 (32...Qd7 33.Qd7 Bd7 34.Bd5 Kf8–+) 0–1. Lein,Marina (2015) – Woisetschlaeger,Adolf (1890), 7th ch–Euro Senior, Hockenheim GER, 2007.

7.Qb3 ab5 8.ab5 Ra7?? 9.Ra7+- 1-0. jhonores (2215) - pecastojkovic (2275), Rated Blitz game, lichess.org, 2020.

7.Qc2 Be7 8.Nf3 (8.Nc3 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Qa5+=) 8...0-0 (8...ab5 9.cb5 Bd6 10.Be2=) 9.Ng5 h6 10.h4?? (10.Bf6!? hg5 11.Be7 Qe7 12.h4=) 10...g6 (better is 10...hg5!? 11.Bf6 gf6 (11...Bf6?! 12.hg5 g6 13.gf6=) 12.hg5 f5–+) 11.Nf3+= Be8 (11...ab5 12.cb5 Ne4 13.Bd3=) 12.Qc3 (12.cd5 ed5 (worse is 12...cb5 13.de6 Nc6 14.ab5+/–; 12...Qd5?! 13.h5=; 12...Nd5?! 13.e4 Nf6 14.h5=) 13.h5 g5= (worse is 13...Nh5 14.g4+/–)) 12...Kh7 (12...dc4 13.ba6 b5 14.g4=) 13.g4 (13.h5 g5= (13...Nh5? 14.Rh5 Bf6 15.Qf6 Qf6 16.Bf6 gh5 17.Bd3 Kg8 18.ba6 Na6 19.Be7+–)) 13...Rg8 14.Ng5 hg5 15.hg5+– Kg7 16.e4 d4 17.gf6 Bf6 18.Qh3+– The mate threat is Qh6 18...Kf8 19.Ba3 Be7 20.Qh6 Rg7 21.Be7 Qe7 22.Qh8 Rg8 23.Qd4 ab5 24.cb5 c5 25.Qe3 Nd7 26.Nc3 Ne5?? 27.Be2 b6?? 28.f4 Nd7 29.e5 Rd8 30.Ne4 f6 31.Nd6 fe5 32.fe5 Qg7?? 33.Rf1 Ke7 34.Qg5 (34.Qg5 Nf6 35.ef6 Kd6 36.fg7+–) 1–0. De Visser,Arno – Bruidegom, 1982.

7.Nc3 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Qa1 Be7 (10...cb5 11.Bb5 Be7 12.Nf3=) 11.Nf3 0-0 12.0-0 Qc7 (12...Ne8 13.d4=) 13.h3 cb5= 14.Bb5 Nc6 (14...Bc6 15.Bc6 Nc6 16.Nb5=) 15.d4 b6 (15...Rc8 16.Rc1=) 16.Rc1 Qb8 (better is 16...Rc8=) 17.Ne5 (better is 17.Ba3+=) 17...Ne5–/+ 18.de5 Qe5 19.Bd7 Nd7 20.Ne2 (20.Rd1 Rd8 21.Nd5 Qg5 22.Ne7 Qe7 23.Bg7 f6+=) 20...Qg5 (20...Qh5 21.Nd4 Ne5 22.Qa6+=) 21.Rc7 (21.Nd4 Nc5–/+) 21...Rd8 22.Nd4 Nb8?? (better is 22...Bd6 23.Ra7 Qd5–/+) 23.Nf3+– Qd5 24.Re7 Nc6 25.Rc7 Nb4? (25...Qd6 26.Be5 Ne5 27.Qe5 Qe5 28.Ne5 f6+–) 26.Bg7 Qd1 27.Kh2 Qa1 28.Ba1 Nd5 (28...Nd3 29.Ng5 Rf8 30.Ne4+–) 29.Rb7 (29.Rb7 h5 30.e4+–) 1–0. Sternik,Ryszard – Jezierski,B, corr Poland, 1985.

7.Nc3 Be7 8.Nf3 ab5 9.ab5 c5 10.Ra8 1–0. mtr – Riel, Internet, 2001.

7.Nf3 ab5 8.ab5 Ra1 9.Ba1 dc4 10.bc6 Bc6 11.Bc4 Bd6 12.Ne5 (12.Nc3 Qa5+=) 12...Be4 (12...Bg2 13.Rg1 Nc6 14.Nf7 Kf7 15.Rg2+=) 13.f3 Nc6 (better is 13...Bc6=) 14.Nf7!+/– Bf3?? (14...Kf7 15.fe4) 15.Nd6 (15.Nd8 Bd1 16.Nb7 Be5+–) 15...Qd6 16.gf3 0-0 (16...Qd7 17.f4+–) 17.Qb3 Nd5 18.Qb7 Rf7 19.Qb2 Qc5 20.Be2 (20.Qb5 Qd6+–) 20...Ncb4 21.0-0 (21.Nc3 Ra7 22.Kf2 Rb7+–) 21...Nc2?? (better is 21...Nf4 22.Rf2 Nh3 23.Kg2 Nf2 24.Kf2 Qh5+–) 22.d4 (better is 22.Rc1 Rc7 23.Qb8 Qf8 24.Qf8 Kf8 25.Bb2+–) 22...Qa7 (22...Qc8 23.e4 Nf4+–) 23.Qc2 Ne3 (23...Re7 24.Nd2 Ne3 25.Qc8 Kf7+–) 24.Qc8 (24.Qc8 Rf8 25.Qe6 Qf7 26.Qe3+–) 1–0. COMP – tst1, internet, 2001.

7.Nf3 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 =+.

8.Qb3 Bc3 9.Bc3 0-0 10.ba6 Na6 11.Qb7 Ne4+=.

8.Qb3 Bc3 9.Bc3 0-0 10.Nf3 ab5 11.ab5 (11.cb5 Ne4=) 11...Ra1 12.Ba1 Qa5 (12...dc4!? 13.Bc4 cb5=) 13.Bc3 (13.Bf6 gf6 14.Be2 dc4 15.Qc4 Qa1 16.Bd1 Qb1+=) 13...Qb6 (13...Qd8 14.b6+=) 14.Bd4 (14.Bf6 gf6 15.Be2 Na6+–) 14...Qa5 15.Qb2 White prepares the advance b6 (15.Qc3 Qa2 16.Qb2 Qb2 17.Bb2 dc4 18.Bf6 gf6 19.Bc4 cb5=) 15...Qd8 (15...dc4 16.b6+=) 16.Be2 (16.b6 Bc8+–) 16...Re8 (16...dc4 17.b6+–) 17.0-0 (17.cd5 ed5 18.Bf6 Qf6 19.Qf6 gf6+–) 17...dc4 18.b6 Na6 (18...Qe7 19.Bc4 c5 20.Bf6 Qf6 21.Qf6 gf6 22.d4+=) 19.Bc4+– c5 20.Ba6 (20.Bf6 Qf6 21.Qf6 gf6+–) 20...cd4 (20...ba6 21.Bc5 Bc6 22.Bd4+–) 21.Bb7 de3 22.fe3 Qb8 23.Ba6 Bc6? (better 23...e5!?+–) 24.Ne5+– Bb7 (24...Qd6 25.Rc1 Ba4+–) 25.Rf6! gf6 (25...Ba6 26.Rf7 Rf8 27.Rf8 Qf8 28.d3+–) 26.Nd7 Qd8 (26...Ba6 27.Nf6 Kf8 28.Nd7 Kg8 29.Nb8 Rb8 30.Qe5+–) 27.Nf6 (27.Bb7?! Qd7 28.Bf3 Rb8+=) 27...Kf8 (27...Qf6 28.Qf6 Ba6+–) 28.Bb7 Re7 29.Nh7 Ke8 (29...Kg8 30.Nf6 Kf8+–) 30.Qh8 Kd7 31.Nf6 Kd6 32.Ne4 Kd7 33.Nc5 Kd6 34.Qd4 1–0. Janek – enoli, internet free game, 2017.

8.Qb3 Bc3 9.Bc3 0-0 10.Nf3 Ne4 11.Bb2 (11.cd5 cd5 12.Be2 Nc3 13.Qc3 Qe8=) 11...f6 (11...ab5!? 12.ab5 Ra1 13.Ba1 dc4 14.Qc4 Ng5=) 12.b6 a5 (12...Rf7 13.d4+=) 13.Ba3 Na6? (13...Rf7 14.d3 dc4 15.Qc4+=) 14.cd5 (14.Bf8 Kf8 15.d4 Nb4+–) 14...Nec5 (14...Re8!? 15.dc6 Bc6+/–) 15.Qc2+– Qb6 16.d4 (16.de6 Be6 17.Rc1 Nd7 18.Bf8 Nf8+–) 16...Nb4+/– 17.Bb4 (17.Qc5 Qc5 18.dc5 Nc2 19.Kd2 Na1+/–) 17...Qb4 18.Nd2 Na6 19.Rb1 Qd6 (19...Qe7 20.Ba6 Ra6 21.Rb7 cd5 22.Qc7+/–) 20.de6 (20.Nc4 Qd5 21.Nb6 Qd6 22.Na8 Nb4+/–) 20...Be6 21.Rb7 Nb4 22.Qc5 Qc5 23.dc5 Rfd8 24.Bc4 Bc4= 25.Nc4 Rd5 26.0-0 Rc5= 27.Na5 Rca5 28.Rb4 ½–½. De Visser,Arno – Roet, 1981.

8.Qb3 Bc3 9.Bc3 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1=.

8.Qb3 Qe7 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 0-0 12.Na2 Bd6 13.d4 Ne4 (better is 13...dc4 14.Bc4 cb5 15.Bb5 Bb5 16.Qb5 Rc8+=) 14.c5+= Bc7 15.b6 Bd8 16.Qa4 Qf6 17.Qa8 (17.Qa7 Be7 18.Nb4 e5+=) 17...Nc5 18.Qb8 Bb6 19.Qe5 Ne4 20.Qf6 gf6 21.Bd3 Ra8 22.Bb1 Ba5 23.Ke2 Bb6? (better is 23...c5!? 24.Bd3 Bc7=) 24.Nd2 c5? (better is 24...f5+/–) 25.dc5?? (better is 25.Ne4 de4 26.dc5 Bb5 27.Kd2 Bc5 28.Bf6+–) 25...Bb5= 26.Kd1 Nf2 27.Kc2 (better is 27.Ke1!? Nh1 28.cb6=) 27...Bc5–/+ (27...Nh1?! 28.cb6 Nf2 29.Bf6 Bd3 30.Kc1 Bb1 31.Kb1+=) 28.Rf1 Be3 29.Rf2 Bf2 30.Bf6 Be3 31.Nc3 Ba6 32.Nf3 Rc8 33.Kb3 Bc4 34.Kb2 Rc6 35.Na4 Be2 36.Nd4?? Bc1 37.Ka1 Rd6?? 38.Bc2?? Bc4–+ 39.Kb1 Ba3 40.Nb2 Bf1 41.g3 Rb6 42.Nb3 Bd6 43.Bd4 Rb5 44.Nd2 Be2 45.Ba4 Rb4 46.Bc3 Rg4 47.Bd7 d4 48.Ba5 Rg5 49.Nbc4 Bc5 50.Bc7 Rf5 51.Bf4 Bb4 52.Kb2 b5 53.Nd6 Rf4! 54.gf4 Bd6 55.Nb3 d3 56.Bb5 Bf4 57.Nc5 Bh2 58.Kc3 Be5 59.Kd2 Bf4 60.Ke1 e5 61.Nd3 Bd3 62.Bd3 h5 63.Kf2 Kg7 64.Kf3 Kh6 65.Bc4 f5 66.Bd3 Kg5 67.Kg2 e4 68.Be2 h4 69.Bb5 Bg3 70.Bd7 Kf4 71.Be6 Ke5 72.Bc8 f4 73.Bb7 f3 74.Kg1 Kf4 75.Ba6 e3 76.Kf1–+ h3 77.Kg1 e2 78.Be2 fe2 79.Kh1 e1Q 0–1. Liszewski,Krzysztof – Ceglowski,Ryszard (1925), OLM (Poland), 2007.

8.Nf3 0-0 9.bc6 Bc6 10.Rc1 =+.

8.Nf3 0-0 9.Be2 Re8 10.0-0 e5 11.cd5 cd5 12.Qb3 Bd6 13.Nd5 Ne4 14.Qc2 Nf6 15.Nf6 Qf6 16.d4 e4 17.Ne5 Bf5 18.Bc4 Be5 19.de5 Qg6 20.Rfd1 Nd7? (better is 20...Bh3 21.f4 ab5+–) 21.Rd6+– Qg5 22.e6 Be6 23.Be6 Rac8 (23...Re6 24.Rd7 Re7 25.Qc7 Rd7 26.Qd7+–) 24.Qd2 (better is 24.Bf7 Kf7 25.Rd7 Ke6 26.Qd2+–) 24...Ne5 25.Be5 (better is 25.f4!? Nf3 26.Kh1 Qh5 27.Bf7 Kf7 28.Rd7 Re7 29.Re7 Ke7 30.Qb4 Kf7+–) 25...Qe5 26.Bf7! Kf7 27.Qd5 (better is 27.Rb1!?+–) 27...Qd5+/– 28.Rd5 Rc4 29.ba6 ba6 30.g4 Rb8 31.Rd6 Ra8 32.h4 Ke7 33.Rb6 Kd7 34.Rb7 Rc7 35.Rb6 Rc6 (35...Rc4 36.a5 Ke7+/–) 36.Rd1 Kc7 37.Rc6 Kc6 38.Rd4 Re8 39.Kg2 Re7 40.Kg3 Kc5 41.f4 (41.Kf4!? Rf7 42.Ke4 Rf2+–) 41...ef3 42.Kf3 a5 43.g5 Rb7 44.h5 Rf7 45.Ke4 g6 46.hg6 hg6 47.Rd5 Kb4 48.Rd6 Ka4 49.Rg6 Rf1 (better is 49...Kb5!?+/–) 50.Rb6+– Rg1 51.g6 Ka3 52.Kf5 a4 53.e4 Ka2 54.e5 a3 55.e6 Rf1 56.Ke5 Ka1 (56...Re1 57.Kf6 Rf1 58.Kg7+–) 57.g7 Rg1 58.e7 a2 59.Ra6 (59.Ra6 Kb2 60.Kf4 Rf1 61.Kg3+–) 1–0. Melich,Jindrich (2080) – Koubek,Vaclav Jr (2060), CZE–chT2A, 2009.

8.Nf3 Bc3 9.Bc3 ab5 10.ab5 Ra1 11.Qa1 dc4 12.bc6 Bc6 13.Bc4 (13...Nbd7 14.d3=). Sokolik – Lach, corr 1. AMM Poland, 1991.

8.ab5 Ra1 9.Qa1 Qb6 10.cd5 ed5 (10...cd5 11.Qa8 Bd6 12.Ba3=) 11.bc6 bc6 12.Nf3 (12.Na4 Qb3+=) 12...Bb4 13.Be2 0-0 14.0-0 Bg4 (14...Qd8 15.Na4+=) 15.Rb1 (15.Na4 Qa5 16.Bf6 gf6+=) 15...Qc7 (15...Nbd7 16.Na4 Qa5 17.Nd4 Be2 18.Nc6-/+) 16.h3 (16.Nb5 Qa5 17.Bf6 Bf3 18.Bf3 gf6+/-) 16...Bh5 (16...Bf3 17.Bf3 Nbd7 18.Nb5+=) 17.Rc1 (17.Nd1!? Qe7 18.Bf6 gf6 19.d4+/-) 17...Qb7 18.Na4 (18.Na2 Be7=) 18...Nbd7 19.Bc3 (19.Bf6 Nf6 20.Qb2 Ra8=) 19...Bd6 (19...Ra8 20.Qb1 Ra4 21.Bd1=+) 20.Rb1 (20.Qb2 Qc7=) 20...Qc7=+ 21.Bd4 (21.Nb2 Ne4=+) 21...c5 22.Rc1 (22.Bf6!? Nf6 23.Nc3=+) 22...Ra8-/+ 23.Bd1 Qa5 24.Bc3 Qa7 25.g4 Bg6 26.Qb2 h6 (26...Be4 27.Ne5 Ne5 28.Be5-/+) 27.Ne5 Be5 28.Be5 Ne5 29.Qe5 Re8 30.Qd6 c4 31.Qc5 Qd7 32.Nc3 Rc8 33.Qd4 Rd8 34.Bf3 Can d5 get defended? 34...Qd6 35.Ra1 Bd3 36.Ra5 d5 draws heavy fire 36...Qc7 37.Rc5 Qa7 (37...Qb8 38.Rb5 Qc7 39.Nd5 Nd5 40.Bd5+=) 38.Rd5 (better 38.Nd5!? Nd5 39.Rc4+/- (39.Bd5?! Qe7+=)) 38...Qa1+= 39.Nd1 Rd5?? (better 39...Qd4 40.Rd4 Rd4 41.ed4 Kf8+=) 40.Qa1+- (40.Qa1 Rd8 41.Nb2+-) 1-0. BeepBeepImAJeep - FurnitureMan (1785), Winter Marathon, lichess.org, 2017.

8.ab5 Ra1 9.Qa1 Bd6 10.bc6 bc6 11.Nf3 =+.

8.ab5 Ra1 9.Qa1 Be7 10.Nf3 0-0 11.Ne5 dc4 12.Bc4 cb5 13.Nd7 (worse is 13.Bb5 Bb5 14.Nb5 Qd5–+) 13...Nbd7 14.Nb5 Bb4 15.0-0 Qa5 16.Qa5 Ba5 17.Ra1 (17.d3!?+=) 17...Bd2= 18.Rd1 Bb4 19.Nd6 Bd6 20.Rd6 Rc8 21.Bb5 Nc5 22.f3 h6 23.Rb6? (better is 23.e4+=) 23...Nd5–+ 24.Rd6 Ne3 25.Bd4 Nf5 26.Bc5 Rc5 27.Rd8 Kh7 28.Bd3 g6 29.Rb8? (29.g4!? Ng7 30.Rb8–/+) 29...Rc7 30.Kf2 Kg7 31.g4 Ne7 32.Be4 Nc6 33.Rb7 (33.Bc6 bc6 34.h4–+) 33...Rb7 34.Bc6 Rb2 35.Kg3 Kf6 36.h4 g5 37.Be4 Ke5 38.hg5 hg5 39.Bc6 f5 40.gf5 ef5 41.f4 gf4 42.Kf3 Rb3 43.Kf2 Ra3 44.Bf3 (44.Ke2–+) 44...Ra2 45.Kf1 Kd4 46.Bb7 Ke3 0–1. Nemeth,Laszlo (2060) – Bednay,Bence (2030), HUN–chT2 Erkel, 2003.

8.ab5 Ra1 9.Qa1 Be7 10.Nf3= cb5 11.cb5 Bc8 (11...Qc7 12.Qa2=+) 12.Be2 Nbd7 (12...0-0 13.0-0=) 13.0-0 (13.d4 0-0=) 13...Bd6 (13...e5 14.Qa2 e4 15.Nd4+=) 14.Rc1 0-0 15.d4 Re8 (15...Qe7 16.Qb1+=) 16.Ba3+= Qe7 17.Bd6 Qd6 18.Bd3 e5 19.de5 (19.Qa8 ed4 20.Nd5 Qd5 21.Rc8 Rf8 22.Rf8 Nf8 23.Nd4 Qd7+–) 19...Ne5 20.Ne5 Qe5 21.Ne2 Ng4 22.Qe5 Ne5 23.Bc2 g5 24.Nd4 Be6 25.Ne6 fe6= 26.Bd1 Re7 27.Be2 Kf7 28.Kf1 h6 29.h3 Nd7 30.Rc7 Nb6 31.Re7 Ke7 32.Ke1 Kd6 33.f4 gf4 34.ef4= Kc5 35.g4+= Nc4 36.Bc4=+ dc4 37.g5+– hg5 38.fg5 Kd6 39.Kd2 e5 40.Kc3 e4 41.Kd4 c3 42.Kc3 Ke5 43.Kd2 (43...Kf5 44.h4+–) 1–0. Skaug,Thorbjorn – Midtvage,Rolf, Klubbmesterskap, 2003.

8.cb5 Bb4 9.Na2 Ba5 (9...Be7+=) 10.Ba3 (10.Nf3 Qe7=) 10...b6 11.Bd3 (11.bc6 Bc6 12.Nf3 Ne4+=) 11...c5 (11...cb5 12.ab5 Bd2 13.Qd2 Ra3 14.Nf3–/+) 12.Ne2 (12.Nf3 Qe7+=) 12...0-0 13.0-0 e5 14.Bc2 Ng4 (14...Re8!?+=) 15.d4= cd4 (better is 15...ed4!? 16.ed4 Qc7=) 16.Bf8+/– de3? (better is 16...Qf8 17.ed4 e4+/–) 17.Qd5+– Qh4 (17...Ra7 18.Bb4 ef2 19.Kh1 Qh4+–) 18.h3 ef2 19.Kh1 Ne3 (19...Ra7 20.Qd6 Qd8+–) 20.Bh7 (better is 20.Qe5 Kf8 21.Qe3+–) 20...Kh7?? (better is 20...Qh7 21.Qf3 Nf1 22.Rf1 Be1–/+) 21.Qd3 (21.Qd3 Nf5 22.Bg7 Kg7 23.Qd5+/–; better is 21.Qf7!? Qf6 22.Rf2 Qf7 23.Rf7 Kg8+–) 1–0. mtr – softi, internet, 2001.

8.cb5 cb5 9.Bb5 Bc5 10.Rc1 b6 11.Nf3 0-0 12.0-0 Bb5 13.Nb5 Nbd7 14.Bf6 Qf6 15.d4 Be7 16.Rc7 Rfd8 17.Qc2 Nf8 (17...Nb8 18.Ne5+=) 18.Ne5+– Bd6? (better 18...Qh4+–) 19.Rf7+– Qf7 (19...Qh6 20.Nd6 Rd6 21.Rb7+–) 20.Nf7 Kf7 21.f4 Be7 (21...g6 22.Qc6 Be7 23.g4+– (worse 23.Qb6 Ra4 24.g4 Kg8+–)) 22.f5 Kg8 23.fe6 Ne6 (23...Rac8 24.Nc3 Rc6+–) 24.Qf5 Ng5 25.Nc7 Rf8 (25...Ra4 26.Nd5 Ra7 27.Ne7 Re7 28.Qg5 Ree8+–) 26.Qd5 Kh8 27.Na8 Rf1 28.Kf1 h6 29.Nb6 Bf6 30.h4 (better 30.a5 Bd4 31.ed4 Kh7+–) 30...Nh7 31.Qa8 Nf8 32.Qf8 Kh7 33.Qe8 (33.a5 h5 34.a6 Kg6 35.a7 Be7 36.Qe8 Kh7 37.Qh5 Kg8 38.a8Q Bf8 39.Qad5) 33...Bh4 34.Qe4 (34.Qe4 Kg8 35.Qh4 g5 36.Qh6 g4 37.Nc4 g3 38.d5 Kf7 39.Ne5 Ke7 40.Qe6 Kd8 41.Qd7) 1–0. Janek – Tmowy, internet, 2019.

7.d4 b6 8.Nf3 0-0 9.Qc2 Qc7 10.Bd3 a6 (better is 10...cb5!? 11.ab5 Rc8=) 11.c5+= ab5? (better is 11...Be7 12.cb6 Qb6+/–) 12.cd6+– Qd6 13.0-0 b4 14.Rc1 Rc8 15.Nbd2 Na6 16.a5 c5 (16...ba5 17.Nb3 Nc7 18.Na5 Rab8+–) 17.ab6 c4 (17...Qb6 18.dc5 Rc5 19.Qc5 Nc5 20.Ra8 Ne8+–) 18.b7 Bb5 19.Bc4! (19...dc4 20.ba8Q (< 20.bc8B Rc8 21.Ra5 Qb6+–; < 20.bc8N Rc8 21.Ra5 Qb6+–; < 20.bc8Q Rc8 21.Ra5 Qb6+–) 20...Ra8 21.Nc4 Bc4 22.Qc4+–) 1–0. Dessing,Bastiaan – Cornelies,William, Hengelo U14 open, 2002.

7.cd5 ed5 8.Qf3 =+.

7.Nf3 0-0 8.Qc2 Qe7!? =+.

7.Nf3 0-0 8.Qc2 Ne8 9.Bd3 f5 10.g4 (10.c5 Be7+=) 10...Qe7 (better is 10...fg4!? 11.Bh7 Kh8–/+) 11.gf5= ef5 12.Nc3 Nc7 (12...dc4 13.Bc4 Kh8=) 13.0-0-0 (13.cd5!? cd5 14.Rc1+=) 13...Ba3 14.Rhg1 Bb2 15.Qb2 dc4 (15...Kh8 16.cd5 cb5 17.d6 Qd6 18.Rg7 ba4 19.Ng5+–) 16.Bc4= Be6 17.Rg7 Qg7 18.Be6 Kh8 19.Rg1 Qf6 20.Bf5 Nd5? (20...Qf5 21.Ne4) 21.Nd4 (better is 21.Nd5!? Qb2 22.Kb2 cd5 23.Be6+–) 21...Nc3+/– 22.Qc3 Rg8?? (better is 22...a6 23.b6 c5 24.Qc5 Nc6 25.Nc6 Qa1 26.Bb1 Rac8 27.Qc3 Qc3 28.dc3 Rc6+/–) 23.Rg8+– Kg8 24.Bc8 Qg7 25.Qc4 Kh8 26.Qe6 a6 27.b6 Nd7 28.Qd7 Qf8 29.Ne6 Qa3 30.Kd1 Qb3 31.Ke1 Qb1 32.Ke2 Qg6 33.Qd4 (33...Qf6 34.Qf6 Kg8 35.Qg7#) 1–0. Simms,Robert – Ehret,Wolfgang, Baden–ch HT Endingen, 1987.

7.Nf3 0-0 8.Be2 dc4 9.Bc4 a6 10.ba6 Na6 11.0-0 =.

7.Nf3 0-0 8.Be2 Re8 9.0-0 e5 10.d4 e4 11.Nfd2 Be6 12.Nc3 Qc7 13.g3 Qd7 14.c5 Bc7 15.a5 Bh3 16.Re1 h5 (16...Qf5 17.Qb3 Re7 18.Reb1=) 17.b6+= Bd8 18.Bf1 (18.f3 h4=) 18...Bf1= 19.Nf1 (19.Rf1 h4=) 19...Qf5 20.Kg2 Nbd7 21.f4 g5 (21...Qg6 22.Qe2=+) 22.h3 gf4 23.ef4 Kh8 24.Ne3 Qg6 25.Rg1 (25.Qd2 Be7=) 25...Rg8 26.Kf1 Qh6 (26...h4 27.g4 Nh5 28.Ne2=) 27.Ne2 Qh7 28.Ke1 Be7 29.Kd2 Ne8 30.g4 Ng7 31.g5 Nc5? (better is 31...Rge8=) 32.dc5+– Bc5 33.Nc4?? (better is 33.ba7 Ra7 34.Qb3+–) 33...e3?? (better is 33...dc4 34.Nd4 ab6 35.ab6 Rad8–+) ½–½. Kleinke,Uwe – Herde,Dittmar, Germany, 2005.

6.a4 dc4 7.Bc4 c6 (7...a6 8.Nc3=+) 8.Nc3 cb5 9.ab5 0-0 10.Qb3 Qc7 11.Nf3 Rc8 12.Be2 (12.b6 Qc5+= (12...Qc4? 13.Qc4 Rc4 14.Ra7+-)) 12...a6= 13.0-0 ab5?? (better 13...Bd6+=) 14.Ra8+- Nc6 (14...Na6 15.Nb5 Nc5 16.Qa3 Ra8 17.Qa8 Qd8 18.Qd8 Bd8 19.Ra1+-) 15.Rc8 Qc8 16.Nb5 Na5 17.Qa2 Bb5 (17...Nc6 18.Ra1+-) 18.Bb5 (18.Qa5?! Be2 19.Rc1 Qe8+-) 18...Nc6 19.Rc1 Qd7 (19...Nd5 20.d3+-) 20.Ne5 (20.Qa8 Bf8+-) 20...Qd5 (20...Qd2 21.Bc6 bc6 22.Qa8 Bf8+-) 21.Bc6 (better 21.Qd5 Nd5 22.Bc6 bc6 23.Rc6+-) 21...Qa2-+ 22.Bb7 (22.Bc3 bc6 23.Nc6-+) 22...Qb2 23.Rc8 Bf8 24.f4 Qb7 25.Rc3 (25.Rc1 Qb2 26.Rd1 Qc2-+) 25...Qb1 26.Kf2 Ne4 27.Ke2 Nc3 28.dc3 Qb2 29.Kf3 Qc3 30.Ng4 f6 (30...Bc5 31.g3-+) 31.Nf2 Qc6 (31...Bc5!? 32.Ng4-+) 32.Kg3 Kf7 (32...Qc1 33.Ng4-+) 33.Ng4 h6 (33...Qc3 34.Kh4 Qe1 35.Kh3 h5 36.e4 g5 37.Ne5 Ke8 38.fg5 fg5 39.g4 Qf1 40.Kg3 h4) 34.Nf2 h5 (better 34...Qc1 35.Ng4-+) 35.h3 Qc7 (35...Qc1 36.Nd3 Qe3 37.Kh2 h4 38.g4 Qd3 39.Kg2 Qg3 40.Kf1 Qf3 41.Kg1 Bc5 42.Kh2 Qf2 43.Kh1 Qg1) 36.Kf3 Qb7 37.Ke2 g6 (better 37...Qb2 38.Kf3 Qd2 39.Ne4 Qd1 40.Kf2-+) 38.Kf1 Bh6 (38...Bc5 39.Nd1-+) 39.Kg1 e5 (39...Qb1 40.Kh2 Qe1 41.Ng4 hg4 42.hg4 Qe3 43.g5 Qf4 44.Kg1 Bf8 45.g3 Bc5 46.Kg2 Qf2 47.Kh3 Bd6 48.gf6 Qg3) 40.g3 ef4 (40...Qf3 41.Kf1 Qe3 42.fe5-+) 41.gf4 Qf3 42.Kf1 Qe3 43.f5 g5 (43...gf5 44.Nd1 Qd3 45.Kf2 Qd1 46.h4 f4 47.Kg2 Qe2 48.Kg1 f3 49.Kh1 Qg2) 44.Kg1 Bf8 45.h4 (45.Kf1 Bc5 46.Nd1 Qf3 47.Ke1 Bb4 48.Nc3 Bc3) 45...g4 (45...Bc5 46.Kh1 Qf2 47.hg5 Qg1) 46.Kg2 (46.Kf1 g3 47.Nd3 Qd3 48.Kg2 Qe2 49.Kg3 Bd6 50.Kh3 Qf3) 46...Bc5 47.Nd1 (47.Kh1 Qf3 48.Kh2 Qf2 49.Kh1 Qg1) 47...Qf3 (47...Qg1) 48.Kh2 Qd1 (48...Qh3) 49.Kg2 (49.Kg3 Qd3 50.Kg2 Qh3) 49...Qf3 (49...Qg1) 50.Kh2 Qh3 0-1. ClayPigeons (2195) - Quinnzie (2150), Rated Bullet game, lichess.org, 2020.

6.Nf3 0-0 7.Be2 dc4 8.Bc4 c6 9.bc6 Bc6 (< 9...bc6 10.d3+=) 10.0-0 a6 11.d4 b5 12.Bb3 Qc7 13.Nc3 Qb7 14.Rc1 Bf3 15.Qf3 Qf3 16.gf3 Nbd7 17.Kh1 Bb4 18.Ne4 Ne4 19.fe4 Nf6 20.e5 (20.d5!?+/–) 20...Ne4= 21.Bc2 Ng5?? (better is 21...Nd2 22.Rfd1 Nc4=) 22.f4+– Nh3 23.Kg2 Nf4 24.ef4 Rfc8 25.Be4 Rab8 26.Rf3 Rc1 27.Bc1 g6 28.Rf2 Rc8 29.Rc2 Rc2 30.Bc2 Bc3 31.Bb3 (31.Be3!? Kf8+–) 31...Bd4 32.Kf3 a5 33.a4 ba4 34.Ba4 f6 35.ef6 Bf6 36.Ke4 Kf7 37.Bd2 Bd8 38.Ke5 Bc7 39.Ke4?? (39.Kd4 Ke7+–) 39...Kf6?? (39...Bd8 40.Bc3 Bb6+–) 40.h3 h6 41.Bb3 g5 42.Bc3 Kg6 43.Be6 (better is 43.fg5!? Kg5 44.Be6 Kh4+–) 43...gf4 44.Bf5 Kg5 (45.Bd7 Kg6+–) 0–1. revbodio1 – more, Live Game Caissa's Web, 2004.

6.a4 a6 7.c4 ab5 (7...dc4 8.ba6 b5 9.ab5 cb5 10.a7–/+) 8.cb5= (8.cb5 Bd6 9.Nf3=). Hirtreiter – Luciani, BdF, 1988.

6.a4 Bd6 7.Nf3 =.

7.Nf3 a6 8.0-0 =.

7.Nf3 a6 8.Na3 ab5 9.ab5 0-0 10.0-0 Ra5 11.c4 cb5 (11...dc4 12.bc6 Nc6 13.Nc4 Ra1 14.Qa1=) 12.cb5 Be8 (12...Bd6 13.Qb3=) 13.Qc2+= Nbd7 (13...Ne4 14.Rfc1+=) 14.Nb1 (14.Ra2 Ra8+=) 14...Ra1 15.Ba1 Ne4 (15...Bd6 16.Rc1=) 16.Nc3+= f5 17.Nd4 Bf7 18.Ne4 (18.f4 Bf6=) 18...fe4 19.d3 Qc8 (19...ed3 20.Bd3 h6 21.Bb2=) 20.Qb2 (20.Qc8 Rc8 21.de4 de4+=) 20...ed3= 21.Bd3 Bf6 22.Rc1 (22.Qb1 h6+=) 22...Qb8 (22...Qe8 23.Qc2 e5 24.Nf5= (worse is 24.Bh7 Kh8+=)) 23.Qc2+= h6 24.Nb3 (24.Qc7 Ne5 25.Be2 Nc4 26.Qb8 Rb8=) 24...Ba1 (24...Ne5 25.f4 Nd3 26.Qd3 Ba1 27.Ra1=) 25.Ra1 Rc8 (25...Ne5 26.Rc1=) 26.Qd2 (26.Qd1 Ne5+=) 26...Ne5= 27.Nd4 (27.Bb1 Qd6+=) 27...Qd6 (27...Nd3 28.Qd3 e5 29.Nf5=) 28.f4+= Nc4 (28...Nd3 29.Qd3 Qb4 30.h3+=) 29.Rc1 (29.Qc3 e5 30.Nf5 Qd7 31.fe5 Be6+=) 29...g6 (29...e5 30.Nf5 Qe6 31.fe5 Qe5 32.Qc3=) 30.Qc2+= Nb6 31.Qd1 (31.Qb1 Rc1 32.Qc1 e5 33.fe5 Qe5=) 31...Rc1 32.Qc1 e5 33.fe5 Qe5 34.Nf3 Qe7 35.Kh1 (35.e4 de4 36.Qe3 Nc4 37.Qe4 Qe4 38.Be4 Nd6=) 35...Kh7 (35...Nc4 36.Qb1=) 36.Qe1 Nc4 Attacking the isolated pawn on e3 37.e4 de4 38.Be4 Kg8 (38...Qc5 39.Qb1=) 39.Qb1 g5 40.Bd3 Ne3 41.Bh7 Kg7 42.Be4 b6 (42...Bd5 43.Bd5 Nd5 44.Qa1 Kg8 45.Qa2=) 43.Qa1 Qf6 44.Qe1 (44.Qc1 Nd5=) 44...Nf5 (44...Nc4 45.Qg1=) 45.Bd3 Bd5 46.Be4 (46.Ne5 Nh4 47.Bf1 Ng6=) 46...Be4 47.Qe4 h5 48.Qe8 (48.Kg1 g4 49.Ne5 Qe6+=) 48...Qd6 (48...g4 49.Ng1 h4 50.Qe4+=) 49.Ng1 (49.Qc8 Ne7 50.Qc3 Qf6=) 49...Qg6 (49...h4 50.Qc6+=) 50.Qd8 (50.Qd7 Qf7 51.Qc6 Qf6=) 50...Qf6 51.Qd7 Kf8 52.Ne2 Ne7 (52...Nd6 53.h3=) 53.Qd1 (53.Kg1 Qe5 54.Qd3 Ke8=) 53...g4 (53...h4 54.Nd4=) 54.Kg1 (54.Nd4 Nd5=) 54...Qe5 55.Qd3 Kf7 (55...Nf5 56.Qd8 Kf7 57.Qd7 Ne7 58.Qd3=) 56.g3 (56.h3 Nf5=) 56...Nd5 (56...Kf6 57.Nd4=) 57.Kg2 (57.Nd4 Qe1 58.Qf1 Qf1 59.Kf1 Ke7–/+) 57...Kg7 58.Kf1 Kf6 59.Nd4 Ne3 (59...Ne7 60.Kg1=) 60.Kg1 (60.Kf2 Nf5 61.Nc6 Qc5 62.Ke2 Nd6=) 60...Kg7 61.Kf2 Nd5 62.Nf5 (62.Kf1 Kf6=) 62...Kf6 63.Nd4 h4 64.Kf1 (64.Qd2 hg3 65.hg3 Qe4=) 64...h3 65.Qh7 Qg5 (65...Ne3 66.Kf2 Nc4 67.Qh8 Kf7 68.Qe5 Ne5 69.Ke3=) 66.Qh8 (66.Qe4 Qc1 67.Kf2 Qd2 68.Ne2 Nb4 69.Qf4 Qf4 70.gf4 Kf5+=) 66...Ke7+= 67.Qh7 (67.Nc6 Kd7 68.Qe5 Qc1 69.Kf2 Qc2 70.Qe2 Qf5 71.Ke1 Kd6–/+) 67...Kd6 68.Qe4 Qe5 69.Qd3 Nf6 70.Nc6 Qd5 71.Qa3 Ke6 72.Qe3 Kf7 73.Qe7 (73.Qb6?? Qd1 74.Kf2 Ne4 75.Ke3 Qg1 76.Ke4 Qb6 77.Ne5 Ke6 78.Ng4 Qb5–+) 73...Kg6 74.Qe8 Ne8 75.Ne7 Kg5 76.Nd5 Nd6 77.Nb6 (77.Nc3 Nc4+=) 77...Nb5 78.Nc4 Nc3 (78...Nd4 79.Nd2+=) 79.Ne3 Ne4 (better is 79...Kh5+=) 80.Ke1? (better is 80.Nc4+=) 80...Ng3!–+ 81.Ng4? (81.hg3 h2 Passed pawn) 81...Kg4 ½–½. Protector 1?4?0 32_bit – Gull II b2 32_bit, CCRL, 2012.

7.Nf3 a6 8.Na3 ab5 9.ab5 0-0 10.0-0 Ra5 11.bc6 Nc6 12.Qc1 Re8 =.

7.Nf3 a6 8.Na3 ab5 9.ab5 0-0 10.0-0 Ra5 11.bc6 Nc6 12.c4 Qb6 13.Rb1 Qd8 (13...Ba3? 14.Ba3 Qb1 15.Qb1 Ra3 16.cd5 Nd5 17.Qb7+–) 14.Qb3 Ra8 (14...e5 15.d4 ed4 16.cd5 Rd5 17.Nd4+=) 15.cd5 Nd5 16.Nc2 Rc8 17.Rfc1 (17.Qb7? Na5 18.Qa6 Rc2–+) 17...Na5 18.Qa2 (18.Qd3 b5=) 18...Ra8 (18...b6 19.Ncd4=) 19.Ba3 Ba3 20.Qa3 (20.Na3 Qf6+=) 20...Nc4 (20...Qf6 21.d4=) 21.Qb3+= Nd6 22.Ne5 (22.d4 Ba4 23.Qb2 Bc2 24.Qc2 Qf6+=) 22...Ba4 23.Qd3 (23.Qb2 Qf6+=) 23...Qf6= 24.f4 (24.Ng4 Qe7=) 24...Bc2 25.Rc2 Qe7 26.Nc4 Nc4 27.Qc4 Ra6 (27...Rfb8 28.Bf3 Qd8 29.Bd5 ed5 30.Qc7+=) 28.h3 (28.Rcb2 Rc6 29.Rb7 Rc4 30.Re7 Rc2+=) 28...Rc6= 29.Qa4 Nb6 30.Qb3 Nd5 31.Bf3 (31.Rc6 bc6 32.Rc1 Qd6=) 31...Rb6 (31...Rd8 32.Rc6 bc6 33.Qc2=) 32.Qa2 (32.Qb6 Nb6 33.Rb6 Qh4+=) 32...Ra6 (32...Rb1 33.Qb1 Qd7 34.Qb3=) 33.Qc4 (33.Qb2 Rb6 34.Qb6 Nb6 35.Rb6 Qh4+=) 33...Rc6 34.Qa4 (34.Qe4 Rc2 35.Qc2 Rd8+=) 34...Rfc8 35.Rcb2 R6c7 36.Rb5 Qd7 (36...Qh4 37.Qd1+=) 37.Bd5 (37.Qb3 Rb8+/–) 37...ed5 38.Qa5 (38.Qb3 d4 39.Rb7 de3 40.Rc7 Qc7 41.Qe3 Qd7+/–) 38...d4 39.Rd5 Qe8 40.Rd4 h6 (40...Rc5 41.Qb6 R8c7 42.e4+/–) 41.Qf5 g6 (41...Qe7 42.Kh2 Ra8 43.e4+/–) 42.Qd3 f5 (42...Qe7 43.e4+/–) 43.Rd6 Kh7 44.Qd5 Qf7 (44...Qe7 45.Rbb6 Rg8 46.Kh2+/–) 45.Qf7+– Rf7 46.Rbb6 Rg7 47.Kf2 h5 48.Kg3 Rc2 (48...Rc1 49.d4+–) 49.Kh4 Rc1 50.d4 Rg1 (50...Re1 51.Rb3+–) 51.g3 Rd1 52.Rf6 Rd3 53.Rfe6 Rd1 54.Kg5 (54.Re8!? Re1+–) 54...Rg1+/– 55.d5 Rf7 (better is 55...Rg3 56.Kf6 Rh3+–) 56.Kh4 Rd1 57.Rg6 Rd5 58.Kh5 Kh8 (58...Rc5 59.Rbf6 Re7 60.h4+–) 59.Kg5 (59.Rh6 Kg8+–) 59...Rd3 (59...Rdd7 60.Rbe6 Rde7 61.Re7 Re7 62.Kf5 Re3 63.h4+–) 60.Rge6 (60.Rh6 Kg7 61.Rbg6 Kf8 62.Rh8 Ke7+–) 60...Rd8 61.Rh6 Kg8 62.Rbg6 Kf8 63.Rh8 (63.Rf6 Rd3 64.Rh7 Rf6 65.Kf6 Ke8 66.Re7 Kd8+–) 63...Ke7 64.Rd8 Kd8 65.h4 Ke7 (65...Re7 66.Kf5 Re3 67.h5+–) 66.h5 1–0. Gull II b2 32_bit – Protector 1?4?0 32_bit, CCRL, 2012.

7.Nf3 a6 8.Na3 ab5 9.ab5 0-0 10.0-0 Ra5 11.bc6 Nc6 12.c4 e5 13.d4 e4 14.Ne5 =.

7.Nf3 c5 8.c4 dc4 9.Bc4 a6 10.0-0 Qb6 (10...0-0 11.Nc3=) 11.Qb3 (11.a5 Qd8 12.ba6 Na6+=) 11...ab5 12.ab5 Ra1 13.Ba1 0-0 14.d4 cd4 (14...Rc8 15.Rd1+=) 15.Bd4 Qa5 16.Nbd2 Rc8 17.Ra1 Qd8 (17...Qb4 18.Qd3+/–) 18.Ra7 b6 19.Ne5 (19.e4 Be8+/–) 19...Be8 20.Ndf3 Bc5 21.Ra1 (21.Bc5 Rc5 22.Nd3 Rc7 23.Rc7 Qc7+=) 21...Qc7 (21...Bd4 22.Nd4 Qc7 23.Ndf3=) 22.Bb2 (22.Bc5 Qc5 23.Ra8 Ne4+=) 22...Nbd7 (22...Bd6!?+=) 23.Nc6+/– Bf8 24.Ra7 Qd6 25.Ba3 (25.Qc2!?+/–) 25...Nc5+= 26.Bc5 Qc5 27.Nfe5 Ne4 (better is 27...Bc6 28.Nc6 Bd6+=) 28.Nd3 (better is 28.Qb2!?+=) 28...Qd6+= 29.Nde5 (29.Qb2 Bc6 30.bc6 Rc6+=) 29...Qd2 (29...Nd2 30.Qa2–/+) 30.Ra2 (30.Qa2!? Qe1 31.Bf1+=) 30...Qe1–/+ 31.Bf1 Ra8?? (better is 31...Nd2 32.Qd3 Nf1–/+) 32.Ra8 (better is 32.Nd3 Qa1 33.Ra1 Ra1 34.Qc2+–) 32...Qf2 0–1. Petrochenko,Maria – Demura,Anna, St Petersburg RUS, 2012.

6.a4 c5 7.c4 ab5 8.ab5 Ra1 9.Ba1 dc4 10.Bc4 Be7 11.Qa4 0-0 12.Qa7 Qc8 13.Nc3 Bd6 14.0-0 Qc7 15.Na4 Nd5 (15...Ng4 16.Kh1=) 16.e4 (16.d4 Rc8+/–) 16...Nb4 17.e5 Be7 18.Rc1 Bc8 (18...Nd5 19.h3+=) 19.Bb2 Nd7 20.d4 cd4 21.Be6! Qc1? (21...fe6 22.Rc7 Discovered attack) 22.Bc1+– fe6 23.Qd4 Nd5 24.Ng5 Nc7 25.b6 Bg5 26.Bg5 (26.bc7?! Bc1 27.Qc4 Bf4 28.Qe6 Kh8=) 26...Nd5 27.Bc1 Nb8 28.f4 Nc6 29.Qe4 g6 30.g3 Bd7 31.Ba3 (31.h3!? Ra8+–) 31...Ra8 32.Bd6 Nd8 33.Nc5 Ra1 34.Kg2 Bc6 35.Kh3 Rf1 (35...Nb6 36.Qd4 Ra8 37.Nb7 Nb7 38.Qb6 Bd5+–) 36.Bc7 (better is 36.Qe2 Ra1 37.Bc7+–) 36...Nf4+/– 37.Qf4 Rf4 38.gf4 Nf7 39.Kh4 Bd5 40.Nd7 Kg7 41.Bd6 Bc6 42.Nc5 Bd5 43.Be7 Nh6 44.Bf6 Kf7 45.Kg3 Nf5 46.Kf2 Nh6 47.Bg5 (47.h3 Nf5+=) 47...Ng4= 48.Kg3 Ne3 49.Bd8 h6 50.Kf2 Ng4 51.Kg1 Ne3 52.h3 Nc4 53.Kf2 g5 54.fg5 hg5 55.Bg5 Nb6 56.h4 Kg6 57.Kg3 (better is 57.Ke3!?=) 57...Kf5+= 58.Bf6 Nc4 59.h5 Ne5 60.Be5 Ke5 61.h6? (better is 61.Kg4!? Kf6 62.Kf4–/+) 61...Kf6–+ 62.h7 Kg7 63.Kf4 b5 64.Nd3 Kh7 65.Ke5 Kg7 66.Nb4 Bc4 67.Na6 Kf7 68.Nb4 Ke7 69.Nc6 Kd7 70.Nb4 Kc7 71.Na6 (71.Nc2 Kc6 72.Kd4 Bd5–+) 71...Kb6 72.Nb4 Ka5 73.Nc6 Ka4 74.Kd4 Bd5 75.Ne5 b4 76.Nd3 Ka3 77.Ke3 b3 78.Kd2 (78.Kd4 Bf3 79.Kc3 Be2–+) 78...b2 (better is 78...Be4 79.Ne5 Kb4 80.Kc1–+) 79.Nb2 Kb2 0–1. Krstev,Emil (2125) – Cvetkovski,Slobodan (1890), Karpos Open, 2013.

6.a4 c6 7.Na3 Bd6 8.c4 (8.Be2 Qe7 9.b6 e5=+) 8...ab5 (8...0-0 9.Be5 Be5 10.Ne5=+) 9.ab5= 0-0 10.Qb3 (10.Be2 Qe7 11.bc6 Nc6=) 10...Qb6 (10...Ne4 11.Be2=) 11.d4 (11.Bd4 Bc5=) 11...dc4 (11...Ne4!?=) 12.Nc4+= (< 12.Qc4 cb5 13.Qb3 Rc8=+) 12...Ra1 13.Ba1 Qa7 14.Bc3 Be7 15.b6 Qa8 (15...Qa6 16.Nce5 Qa8 17.Bd3+/– (17.Nd7?! Nbd7 18.Bd3 Nd5=+)) 16.Bd3 Nd5 17.Bb2 (17.0-0!?+/–) 17...Na6 18.0-0 Qd8 19.Ra1 Nab4 20.Bf1 (20.Ba3 c5+=) 20...Re8 (20...Nb6 21.Ba3 Nc4 22.Bc4+=) 21.Nfe5 (21.Ba3 f5+/–) 21...f6 22.Nd3 Nd3 23.Bd3 f5 24.Ra7 Bc8 25.Ra8 Bf8 26.Ba3 Ba3 27.Ra3 Qg5 28.Bf1 f4 29.e4+– Rf8? 30.ed5 f3 31.Qe3 Qd5 32.Ne5 fg2 33.Bg2 Qb5 34.Rb3 Qa4 35.Be4 Rd8 36.Qf3 Rf8 37.Bh7! Kh7 38.Qh5 Kg8 39.Rh3 Qa1 40.Kg2 Rf2 41.Kf2 Qd4 42.Kg3 Qe3 43.Nf3 Bd7 44.Qh7 Kf8 45.Rh4 Qc3 46.Qg6 Kg8 47.Rd4 (47…Kf8 48.Rd7+–; 47.Rf4 Qe3 48.Qf7 Kh8 49.Rh4 Qh6 50.Rh6 gh6 51.Ne5 c5 52.Ng6#) 1–0. Kulbacki,James – Thomas,Johnny, Lansing op, 1997.

6.a4 c6 7.Nc3 Bb4 (7...Bd6 8.bc6 Nc6 9.Ba3 Ba3 10.Ra3+=) 8.Ne5= 0-0 9.ba6 (9.Be2 Qc7 10.f4 Bd6=) 9...Na6+= 10.Na2 (10.Be2 Nc5+=) 10...Ba5 (10...Bd6 11.f4+=) 11.Rb1 (11.Ba3 Re8+=) 11...Ne4 (11...Nc5 12.Nc3+=) 12.c3 Qf6 (12...Bc7 13.Nd7 Qd7 14.d3+=) 13.Nf3 (13.f4 Rfd8 14.Qh5 c5+=) 13...Nac5 (13...c5 14.Qc2–/+) 14.Nb4 (14.d4 Na6+=) 14...Qf5 (14...Bc7 15.Ra1–/+) 15.d3+= Nf6 (15...Nd6 16.Ba3+=) 16.Ra1 (16.Ba3 b6+=) 16...e5–/+ 17.d4 (17.Ne5 Qe5 18.d4 Qe7 19.dc5 Qc5–/+) 17...Nce4 18.de5 (18.Bd3!?–/+) 18...Ng4–+ 19.Bd3 Ngf2 20.Be4 Ne4 (worse is 20...de4 21.Kf2 ef3 22.Qf3–/+) 21.0-0 Qh5 22.Qc2 Bf5 (22...Rfe8 23.Nd3 Qh6 24.Rae1–+) 23.Nd4 (23.Nd3 Nc5! 24.Nfe1 Nd3 25.Nd3 Bb6–+) 23...Bg6 24.Nd3 Nc5! 25.Nf4 (25.Nc5 Bc2 Pinning (25...Bc2 Deflection; 25...Bc2 Clearance)) 25...Qe5 26.Qc1 (26.Qe2 Bb6–+) 26...Rfe8 (26...Nd3 27.Nf3 Qe8 28.Nd3 Bd3 29.Ba3 Bf1 30.Kf1–+) 27.Rf3 (27.c4 Nd3 28.Nd3 Bd3 29.Nf5–+) 27...Bc7 28.c4 (28.Rh3 Ra4 29.Ra4 Na4 30.Ng6 fg6–+) 28...Na4 (28...Nd3 29.Nd3 Qh2 30.Kf2 Bd3 31.Rh3–+) 29.Ra4?! (29.cd5 Nb2 30.Ra8 Ra8 31.Qb2 c5 (31...cd5?! 32.Qb7 Rb8 33.Qd5–/+) 32.Qb7 Rb8–+) 29...Ra4 30.cd5?! (30.Nde6 Rc4 (30...Re6 31.Be5 Re5 32.cd5+=) 31.Qa1 A) 31...Re6 32.Be5 Rc1 33.Qc1 Re5 34.Qb2+– (worse is 34.Ng6 hg6 35.Qc5 f5+–); B) 31...Qd6–+) 30...Rb4 (30...Ra2 31.dc6 bc6 32.Bc3–+) 31.dc6 (31.Nb3 Qe4 32.Nd2 Qc2 33.Qc2 Bc2–+) 31...bc6 32.Ng6 hg6 (32...Qh2 33.Kf2 hg6 34.Rh3–+) 33.Rh3 (33.g3 Qe4 34.Qc3 Rb6–+) 33...c5 (33...Qe4 34.Kf2–+) 34.Ba3 cd4 (34...Rd4!? 35.ed4 Qd4 36.Kf1–+) 35.Bb4 de3 36.Bc3 (36.Be1 e2 37.Qc4–+) 36...Qf4 37.Bg7 (37.Qf1–+) 37...Kg7 (37...e2 38.Rh8 Kg7 39.Rh7 Kh7 40.Qe1 Qh2 41.Kf2 Qh4 42.g3 Qg3) 38.Qc3 Be5 39.Qe1 Bd4 40.Rf3 e2 41.Kh1 Qd2! 0–1. Bende,Ede – Soponyai,Andras, HUN tt3, 2000.

6.a4 c6 7.Be2 Bd6 =.

6.a4 c6 7.Ne5 Bd6 8.Nd7 (8.f4!?=) 8...Nbd7=+ (worse 8...Kd7 9.Nc3+=) 9.c4 (9.Nc3 0-0=+) 9...0-0 (9...ab5 10.ab5 0-0 11.Ra8 Qa8 12.Nc3=+) 10.Be2 (10.bc6 bc6 11.Qc2 e5=+) 10...Qc7 (10...ab5 11.ab5 Ra1 12.Ba1 cb5 13.cd5 Nd5 14.Bb5–/+) 11.d4 (11.cd5 cd5 12.Nc3 Nb6=+ (12...Bh2?! 13.ba6 ba6 14.g3 Bg3 15.fg3=)) 11...dc4 12.ba6 Qa5 (12...Bb4 13.Kf1–/+) 13.Bc3=+ Bb4 (13...Qa6 14.Nd2 Nd5 15.Qc1 Nc3 16.Qc3=) 14.Bb4 Qb4 15.Qd2 Qd2 16.Nd2 b5 (16...Ra6!? 17.Nc4 b5=+) 17.ab5= cb5 18.a7 (better 18.Bf3 Nd5 19.Bd5 ed5 20.Ke2=) 18...Nd5 (18...Rfc8 19.Bf3 Nd5=) 19.e4?? (better 19.Ne4!? N7b6 20.Nd6+–) 19...Nc7 (19...Nb4 20.0-0 Nc2–+) 20.0-0 (20.Nf3 Nb6 21.Ne5 Rfd8=) 20...Nb6 21.Ra5 (21.Ra2 Nc8 22.Rfa1 Rd8=) 21...Rfd8 22.Nf3 Nc8 23.Rfa1 Rd6 24.h3 (24.d5 ed5 25.ed5 Rd5=) 24...Rb6 25.Rb1 (25.d5!? Rb7 26.de6 Rba7 27.Ra7 Ra7 28.Rd1 Ne6 29.Nd4=) 25...c3–/+ (worse 25...Na7 26.Bc4 Rb7 27.Ra2+=; worse 25...Ra7 26.Ra7 Na7 27.Bc4+=) 26.Ne5? (better 26.Ra3!? b4 27.Rab3=+) 26...Ra7–+ 27.Ra7 Na7 28.Ra1 (28.f4 f6 29.Nf3 b4–+) 28...Nc8 (28...Ra6!? 29.Rd1–+) 29.Bd1 f6 (29...Rd6 30.Bc2 f6 31.Nf3–+) 30.Nf3 White prepares e5 (30.Nd3 Ra6 31.Ra6 Na6–+) 30...b4 (30...Ra6 31.Ra6 Na6 32.Kf1–+) 31.Bb3 Nd6 32.e5 Ndb5 33.ef6 (33.Kf1 Nd5 34.Ke2–+) 33...gf6 34.Ra4 (34.Kf1 Rd6 35.Rd1 Ra6–+) 34...Na3 (better 34...Rc6!? 35.Rb4 c2 36.Bc2 Rc2 37.Rb1–+) 35.Ne1 Nd5 36.Ra8 (36.f3 Kf7–+) 36...Kg7 37.Rc8? (37.Kf1 Nb1 38.Nf3–+) 37...Nb1 38.Nf3 (38.Nc2 Nd2 39.Bd5 ed5 40.Nb4 Rb4 41.Rc3 Rd4 42.f3–+) 38…Nd2 (38...Nd2 39.Nd2 cd2–+) 0–1. Portnoy,Yuriy (1935) – Nikiforov,Alexander (1790), 5th V. Smyslov Memorial, 2010. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 Bd7 5.e3 a6)

6.a4 Bd6 7.Ba3 =+.

6.a4 Bd6 7.c4 0-0 8.Qc2 b6 (8...c5 9.Ng5 g6 10.Nf3=) 9.Ng5= g6 10.Be2 (10.d4 Qe7=) 10...h6 (10...dc4 11.Ne4 e5 12.Nd6 cd6 13.Bc4=) 11.Nf3 dc4 12.0-0 (12.Qc4 Nd5=) 12...ab5 13.ab5 Ra1 14.Ba1 c6 15.Qc4 cb5 16.Qh4 Kg7 17.Nc3 Attacking the isolated pawn on b5 17...b4 (17...Bc6 18.Nb5 Be7 19.Bd4+=) 18.Ne4+/– Be7 19.Nf6 Bf6 20.Qb4 Ba1 21.Ra1 Bc6 22.Ra7 (22.Ne5 Qc7 23.Qb2 f6 24.Nc6 Qc6+/–) 22...Kg8 (22...Bf3 23.Bf3 (23.gf3?! Kg8 24.Rb7 Nc6 25.Qb6 Qd2=) 23...e5 24.Rb7+/–) 23.d4 Be4 24.Qb2 Nd7 25.Nd2 (25.Qa3 Nf6+/–) 25...Bc6 26.e4 (26.Bf3 Qb8 27.Ra3 Bf3 28.Nf3 Rc8+=) 26...Qb8+= 27.Ra3 Rc8 28.e5 Qc7 (28...Bd5 29.Nb1+=) 29.Rc3+/– Qd8 30.Nc4 Exerts pressure on the isolated pawn 30...Bd5 31.Nd6 Rc3 32.Qc3 f5 (32...f6!?+/–) 33.Bb5+– Nf8 (33...f4 34.Qc8 Qc8 35.Nc8+–) 34.Qc8 Qc8 35.Nc8 g5 36.Nb6 Bb3 37.Kf1 (37.Nc8 Ng6+/–) 37...Ng6+/– 38.Bc4 (38.Nc8 Bd5+/–) 38...Bc4 39.Nc4 Kf7 (39...Nf4 40.Nd6+/–) 40.Nd6 Ke7 41.f3 (41.g3 Kd7+/–) 41...Kd7 42.g3 (42.Kf2 Kc6 43.Ke3 h5+/–) 42...h5 Black prepares the advance g4 43.Ke2 g4 44.f4 Ne7 45.Kd2 (45.Kd3+/–) 45...Nc6 (45...Nd5 46.Nc4+/–) 46.d5!+– Nd4 (46...ed5 47.Nf5 Deflection) 47.Kd3 Nf3 48.de6 Ke6 49.Nb5 Nh2 (49...Kd5 50.Nc7 Kc6 51.Ne6+–) 50.Nd4 Kd5 51.Nf5 Nf3 52.Ke2 Ng1 1–0. Stefanov,Plamen (2185) – Rogers,Henry, IECG, 2004.

6.a4 Bd6 7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 cb5 (11...0-0 12.0-0=) 12.Nb5 Bb5 (12...Be7 13.Bf6 Bf6 14.Nd6 Ke7 15.Ne4+=) 13.Bb5+= Nbd7 (13...Nc6 14.Qa4 0-0 15.Bc6 bc6 16.Qc6+=) 14.Bf6+– Qf6 (14...gf6 15.Qa4+–) 15.Qa4 Qd8 16.Qd4 Bf8?? (better 16...Ke7 17.Bd7 Kd7 18.Qg7 Qg8+–) 17.Ne5+– Bc5 (17...Qc7 18.Bd7 Ke7+–) 18.Bd7 (better 18.Qc5! f6 19.Bd7 Qd7 20.Nd7 Kd7 21.Qb5 Kd6 22.Qb6 Kd7 23.Qb7 Kd6+–) 18...Qd7 (18...Kf8 19.Qc5 Kg8+–) 19.Qd7 (19.Qd7 Kf8 20.Qf7; worse 19.Nd7 Bd4 20.ed4 Kd7–/+; 19.Qc5 b6 20.Qb6 Qc8+–) 1–0. GuestMHMG – Guestismo, freechess.org, 2018.

6.a4 Bd6 7.Be2 0-0 8.0-0 a5 9.Ne5 b6 (9...Be8 10.d4+=) 10.f4 Ne8 (better 10...Bc8!?+=) 11.c4+– f6 (11...Nf6 12.Nc3+–) 12.Nd7 Qd7 (12...Nd7 13.cd5 e5 14.fe5 fe5 15.Rf8 Kf8 16.Na3+–) 13.cd5 ed5 (13...e5 14.fe5 fe5 15.Rf8 Kf8 16.Qc2+–) 14.Bf3 (14.Nc3 d4 15.Qb3 Kh8 16.ed4 Bb4+–) 14...Bc5 (14...c6 15.Nc3 Nc7 16.bc6 Nc6 17.Nd5 Nd5 18.Bd5 Kh8+–) 15.Nc3 Ra7 16.Nd5 Nd6 17.Qb3 Kh8 18.d4 Bb4 19.e4 f5 20.e5 Ne4 21.Nb4 ab4 (21...Nd2 22.Qa3 Nf3 23.Rf3 (23.Qf3?! ab4 24.d5 Qe7+–) 23...ab4 24.Qb4+–) 22.Qb4 Qd8 (22...Rc8 23.Rfc1+–) 23.Be4 fe4 24.d5! Nd7 (24...Qd5 25.Qf8 Deflection) 25.Qe4 Nc5 (25...Qe7 26.Ba3 Nc5 27.Qc2+–) 26.Qc4 Qh4 (26...Qa8 27.e6 Rf5 28.a5+–) 27.a5! Raa8 (27...Ra5 28.Ra5 Combination; 27...ba5 28.Qc5 Deflection) 28.Ba3 Ra5 (28...Qe7+–) 29.Bc5 Ra1 30.Bf8 Rf1 (30...Ra8 31.Bb4 Qd8 32.e6+–) 31.Kf1 Qh2 (31...Qg4 32.e6 Qd1 33.Kf2 Qd2 34.Kf3 Qd1 35.Kg3 Qe1 36.Kh3 c5 37.dc6 Qd1 38.c7 h5 39.g3 Qg4 40.Kg2 Kh7 41.c8Q Qd1 42.Qe4 Kh6 43.e7 Qe2 44.Qe2 h4 45.Qec2 hg3 46.Qh3) 32.Bg7! Kg7 33.Qc7 Kg6 34.Qb6 Kf5 35.Qf6 White plans e6 35...Ke4 36.e6 Qh1 37.Kf2 Qc1 38.Qe5 Kd3 39.Qe2 (39.e7 Qc5 40.Kf3 Kd2 41.e8Q Qc3 42.Qc3 Kc3 43.b6 Kc4 44.b7 Kb4 45.b8Q Kc5 46.Qe4 h5 47.Qbb4) 39...Kd4+– 40.Qe5 Kd3 41.e7 Qd2 42.Kg3 (42.Kg3 Qa2 43.e8Q Qd2 44.Qe4 Kc3 45.Qc6 Kb2 46.b6 Qc3 47.Qc3 Kc3 48.b7 Kb3 49.b8Q Ka3 50.d6 h5 51.Qea8) 1–0. DEFFM – GuestRVFR, freechess.org, 2019.

6.ba6 Na6 7.Nc3 Bd6 8.Ne2 (8.Nb5 Bb5 9.Bb5 c6+=) 8...0-0 9.Ng3 (9.Rb1 Qe7+=) 9...Ba4 (9...c5 10.Be5 Be5 11.Ne5+=) 10.a3 (10.Ba6 Ra6 11.0-0 Qe7+=) 10...Qe7 (10...Re8 11.Be5+=) 11.Ng5 (11.Be5 b5+=) 11...Nc5 (11...Rfb8–/+) 12.h4 (12.d4!? Nce4 13.N5e4 Ne4 14.Ne4 de4 15.Be2+=) 12...Bg3–/+ 13.fg3 Nce4 (13...Qd6 14.Rh3–+) 14.Be5 (14.Bd3 e5–/+) 14...Bc6 (14...Ng5 15.hg5 Ne4 16.Rb1–/+) 15.d3 Nd6 16.Qf3 (16.Be2 Ra4–/+) 16...Ra4 (16...Nd7 17.Bb2–/+) 17.Bf6 (17.Be2 Nd7 18.Bd6 Qd6–/+) 17...Qf6 (17...gf6 18.Nh3–/+) 18.d4 (18.Qf6 gf6 19.Nf3 Rfa8–/+) 18...Qf3 (18...Qe7 19.Be2–+) 19.Nf3 (19.gf3!? Rfa8 20.h5–/+) 19...Rfa8–+ 20.Bd3 Ra3 (20...Bb5 21.Ke2–+) 21.Ra3 Ra3 22.0-0 (22.Kf2 Bb5 23.Bb5 Nb5–+) 22...Bb5 23.Bb5 Nb5 24.Re1 Nc3 25.Kh2 Ne4 (25...Ra2 26.Rc1–+) 26.Rc1 (26.g4 Rc3–+) 26...Re3 27.Ra1 (27.c4 dc4 28.Rc4 Rc3–+) 27...f6 (27...Kf8 28.Ra7–+) 28.Ra8 Kf7 29.Ra1 (29.g4 Rc3 30.Ra2 Rc4–+) 29...Rc3 30.Rc1 (30.Ra7 b6–+) 30...b6 0–1. Von Oppen,O – Klafki,Christoph, Koblenz, 1990. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 e6 4.b5 Bd7 5.e3 a6)

6.ba6 Na6 7.c4 Bd6 8.Be2 dc4 9.Bc4 b5 10.0-0?? (better is 10.Be2+=) 10…bc4–+ 0–1. Endean,Andrew (1665) – Rogers,Henry, IECG, 2004.

6.ba6 Na6 7.Ne5 Nc5 =.

7.ab5 Bb5?? 8.Ra8+– (8.Ra8 Bf1 9.Bf6 gf6 10.Rf1+–) 1–0. DEFFM – GuestTLDT, freechess.org, 2019.

7.ab5 Bc5 8.Ra8 0-0 9.c4 (9.Be2 Ne4+–) 9...b6 (9...dc4 10.Bc4 Nd5 11.Qc2+–) 10.Qc2 c6 (10...dc4 11.Bc4 Nd5 12.0-0+–) 11.Be5 Qe7 12.Rb8 (12.Bb8 dc4 13.Qc4 cb5+–) 12...Rb8 (13.Bb8 dc4 14.Qc4 cb5+–). pcmvr (2400) – dmendiola (2155), net–chess.com, 2006.

8.Ba1 Bb4 9.c4 c6 10.Nc3 Bc3 (10...0-0 11.Ne5=) 11.Bc3 cb5 (11...dc4!? 12.bc6 Bc6 13.Bc4 Ne4=) 12.cb5+= 0-0 13.Be2 Ne4 14.Bb4 Re8 15.0-0 Qb6 Attacks the isolani on b5 16.Qa4 e5 17.d4 Bg4 18.de5 Nd7 19.Qd1 White gets the initiative 19...Bf3 20.gf3 (20.Bf3?! Qb5 (worse is 20...Re5 21.Be4 Qb5 22.Bh7 Kh7 23.Qb1 f5 24.Bc3 Qb1 25.Rb1+/–; worse is 20...Ne5 21.Be2+=) 21.Qd4 Ne5 22.Be4 de4 23.Qe4 Nd3–/+) 20...Nf2?? (better is 20...Re5 21.fe4 Qg6 22.Bg4 Re4+=) 21.Kf2 Re5 22.Qd4 Qh6 23.h4 g5? (23...Qh5+–) 24.Rg1 f6 (24...Qg6 25.Qc3 f6 26.Qc8 Qe8 27.Qe8 Re8 28.hg5+–) 25.Qg4 (25.Qg4 Nb6 26.Bd6+–) 1–0. Labahn,Wolfgang – Koss,R, Paderborn GER, 1988.

8.Ba1 Bb4 9.Be2 0-0 10.0-0 (10.Bc3 Be7=) 10...c6 11.Ne5 (11.Bc3 Be7=) 11...cb5 12.Nd7 Qd7 (12...Nbd7 13.Nc3=) 13.Bf6 gf6 14.f4 f5 15.Bd3 (15.Qc1 Bc5=) 15...Kh8 (15...Na6 16.Qh5 f6 17.Rf3=) 16.Na3 Attacks the isolani on b5 (16.Qe2 Nc6=) 16...Ba3 (16...Nc6 17.Nb5 Bc5 18.Qe2=) 17.Qa1+= f6 18.Qa3 Qg7 (18...Rg8 19.Rb1+=) 19.Rb1 (19.Bb5 Rg8 20.Rf2 Qf8+=) 19...Rg8 20.g3 h5 21.Qd6 (21.Bb5?! h4=) 21...h4 (better 21...Qd7!? 22.Qd7 Nd7 23.Rb5 b6+–) 22.Qe6+– (22.Rb5?! hg3 23.h3 Re8=) 22...hg3 23.h3 (23.Bf5?? gh2 24.Kf1 Qg2 25.Ke1 h1Q; 23.Rb5?? gh2 24.Kf2 Qg2 25.Ke1 h1Q 26.Bf1 Qhf1; 23.Bb5?? gh2 24.Kf1 Qg2 25.Ke1 h1Q 26.Bf1 Qhf1; 23.Qd5?? gh2 24.Kf2 Qg1 25.Rg1 hg1Q 26.Ke2 Rg2 27.Qg2 Qg2 28.Kd1 Na6 29.Bb5 Nc5–+) 23...Nc6 (23...b4 24.Rb4 (24.Bf5?! Nc6+–) 24...Nc6 25.Qf5+–) 24.Rb5 g2 (24...Nd8 25.Qf5 Qh6 26.Rd5+–) 25.Bf5 (better 25.Qf5 Rd8 26.Rd5+–) 25...Qg3 (25...Nd8 26.Qd5 Qg3+–) 26.Qf6 Rg7 27.Qf8 Rg8 28.Qh6 1–0. DEFFM – GuestSJLM, freechess.org, 2018.

8.Ba1 Bb4 9.Be2 Ne4 10.c3 (10.0-0 0-0+=) 10...Be7 (10...Bd6 11.d3 Ng5 12.c4=) 11.d3 Nc5 (11...Nd6 12.c4+=) 12.c4 dc4 (12...0-0 13.0-0=) 13.dc4+= 0-0 14.0-0 Bf6 (14...f6 15.Bd4+=) 15.Ne5 (15.Bf6 Qf6 16.Qd4 Qe7+=) 15...Be5 (15...Bc8 16.Qd8 Rd8 17.Bh5=) 16.Be5+– f6 (16...b6 17.Nc3+–) 17.Bb2 (better 17.Bc3+–) 17...e5 (better 17...Qe7!?+–) 18.Qd5+– Ne6 19.Qb7 Kh8 (19...Qc8 20.Qc8 Rc8 21.Nc3+–) 20.Nc3 Nc5 (20...Re8 21.Rd1+–) 21.Qa7 Ne6 22.Rd1 Qc8 (22...Qe8 23.Ba3 Rf7 24.Bh5+–) 23.Ba3 (23.Nd5 Qd8+–) 23...Rd8 (23...Rf7 24.Bh5 g6 25.Bf3+–) 24.Nd5 White intends b6 (24.Be7 Rg8+–) 24...Be8 25.Bg4 Bf7 26.b6 Nc6 27.Be6 Be6 (27...Qe6 28.Qc7 Bg6 29.Nc3+–) 28.Qc7 Qc7 29.bc7 (29.Nc7?? Rd1) 29...Rc8 30.Rb1 Bd5 (30...Re8+–) 31.cd5 Ne7 (31...h6 32.d6 Kg8+–) 32.Rb8 (32.Rb8 g5 33.Be7 h5 34.Rc8 Kg7 35.Rg8 Kg8 36.c8Q Kg7 37.Qf8 Kg6 38.Qf6 Kh7 39.Qf7 Kh6 40.Bf8) 1–0. Anonymous – Anonymous, lichess.org, 2020.

8.Ba1 c5 9.c4 Be7 10.Be2 (10.Qc2 Qb6=) 10...0-0 11.0-0 (11.d3 Bd6=) 11...dc4 12.Nc3 (12.Bc4 Ne4=) 12...b6 (12...Bd6 13.Bc4 e5 14.d4 cd4 15.ed4+=) 13.Bc4 Bc8 14.Bb2 (14.Qe2 Bb7=) 14...Bb7 15.d3 Nbd7 16.h3 Qc7 17.Qe2 Nd5 (17...Ra8 18.Rc1=) 18.Ne4 h6 (18...Ra8 19.Ra1=) 19.Ra1 N5f6 20.Ned2 (20.Nc3 Ra8=) 20...Bd6 (20...Ra8 21.Ra8 Ba8 22.e4=) 21.Ra2 (21.e4 Ne5+=) 21...Ra8 22.Bb3 (22.Ra8 Ba8 23.e4 Ne5=) 22...Ra2 23.Ba2 Nd5 (23...Ne5 24.Bc4=) 24.Nc4 Be7 (24...Nb4 25.Nd6 Qd6 26.Bc4=) 25.Nfe5 (25.e4 Nb4 26.Bb3 Qf4+=) 25...Bf6 (25...Ne5 26.Be5 Qd7 27.Na3=) 26.f4 (26.Nd7 Qd7 27.Bf6 Nf6 28.Nb6 Qb5=) 26...Ne5 27.Ne5 Kf8 (27...Qd6 28.Bb3=) 28.Bc4 (28.Qf2 Qd8=) 28...Ne7 (28...Qd6 29.g3=) 29.e4 (29.Bc3 Kg8=) 29...Qd8 (29...Kg8 30.Kh1=) 30.g3 (30.Qg4 Qc7+=) 30...Be5 (30...Nc8!?=) 31.Be5+= Ng6 32.Bc3 Qd6 (32...Qd7 33.Qa2 Bc8 34.Qa1+/–) 33.Qg4 (33.Qb2 h5+/–) 33...e5 (33...Kg8 34.h4 h5 35.Qh5+–) 34.Qf5 Qf6 (34...Qc7 35.Be5 Ne5 36.fe5+– (36.Qe5?! Qe5 37.fe5 Bc8=)) 35.fe5 (35.Qd7 Qe7 36.Qe7 Ke7+–) 35...Qf5 36.ef5 Ne7 37.g4 (37.f6 Nd5 38.fg7 Kg7+–) 37...Nd5 (37...h5 38.Kf2+–) 38.Bd2 Ke7 39.Kf2 f6 (39...Ba8 40.Ke2+–) 40.e6 Kd8 41.Kg3 Ne7 42.Bf4 (42.Bc1 Bd5+–) 42...Ba8 (42...h5 43.Bd6+–) 43.Bd6 (43.h4 h5+–) 43...Bb7 (43...h5 44.Kh4 hg4 45.Kg4+–) 44.Kf2 (44.Kf4 Bg2+–) 44...Ba8 45.Kg3 Bb7 46.Bb3 (46.h4 Ba8+–) 46...Ba8 (46...h5 47.Be7 Ke7 48.gh5+–) 47.Bd1 (47.Kf4 Bg2 48.h4 h5+–) 47...Bd5 48.Kf2 Ba2 (48...g6 49.Be7 Ke7 50.Ke3+–) 49.Bf3 Bb3 50.Ke3 Ba4 (50...g6 51.Be7 Ke7 52.d4 gf5 53.gf5+–) 51.Be7 Ke7 52.Bc6 Kd6 (52...h5 53.gh5 Bd1 54.d4 cd4 55.Kd4 Bh5 56.Be4+–) 53.d4 cd4 54.Kd4 Bb3 (54...Ke7 55.Ke3+–) 55.Ke3 (55.Bf3 Bc2+–) 55...Bc4 56.Kf4 Ke7 (56...Bd3 57.h4+–) 57.h4 White plans g5 (57.Ke4 Bf1 58.h4 Bg2 59.Ke3 Bh3+–) 57...Kd6 (57...g6 58.Ke3+–) 58.g5 (58.h5 Be2+–) 58...hg5 (58...fg5 59.hg5 h5+–) 59.hg5+/– Ke7 (59...Bd3 60.gf6 gf6 61.Kg4+=) 60.Kg4 (60.Bd7 Bd3 61.g6 Kd8+/–) 60...Bd3 (better is 60...Be2 61.Bf3 Bb5+/–) 61.Kf4 Bc4 62.gf6 gf6 63.Ke3 Kd6 ½–½. Mittelbachert,Ulrich (2000) – Strathoff,Jens (2030), Ruhrgebiet VL1, 2007. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 Bd7 5.e3 a6 6.a4 ab5 7.ab5 Ra1)

8.Ba1 Bc5 9.d4 Bb4 10.c3 Bd6 11.c4 c6 (11...dc4!? 12.Bc4 c6=) 12.c5+= Be7 13.b6 0-0 (13...Na6 14.Nc3+–) 14.Nbd2 (14.Bd3 Ne4+–) 14...Ne4 (14...Na6 15.Ba6 ba6 16.0-0+–) 15.Ne4 de4 16.Nd2 f5 17.Qb3 (17.Bc4 Kh8+–) 17...Bf6 (17...Kh8 18.Bc4+–) 18.Be2 (18.Bc4 Qe7+–) 18...Qe7 (18...Na6 19.0-0+–) 19.0-0 Kh8 (19...Be8 20.Nc4+–) 20.Nc4+– Bc8 21.Bb2 (21.Nd6 Rd8+–) 21...Qf7 (better 21...Nd7!?+–) 22.Nd6+– Qg6 23.Ra1 Be7 24.Nc8 Rc8 25.Ra7 f4 (25...Rd8 26.Rb7 Bg5 27.d5 ed5 28.Rg7 Qg7 29.Bg7 Kg7 30.Kf1+–) 26.ef4 (26.Rb7?! f3 27.Bf1 Re8+–) 26...Rf8 (26...Qf5 27.Rb7 Bf6 28.g4 Qf4 29.Qe3 Qe3 30.fe3+–) 27.Rb7 Bh4 28.d5 ed5 (28...Bf6 29.Bf6 Qf6 30.de6+–) 29.Be5 h6 (29...d4 30.Bh5 (30.Rb8 Rb8 31.Bb8 d3+–) 30...Qh6 31.Qf7+–) 30.Qh3 1–0. Janek – Malin, internet, 2018.

8.Ba1 Bd6 9.d4 c5 10.c4 Qc7 (10...0-0 11.Be2=) 11.Be2 Ng4? (better 11...dc4!? 12.Bc4 0-0+=) 12.dc5+– Bh2?? (better 12...Bc5 13.cd5 0-0+–) 13.Nh2+– Nh2 (13...Nf6 14.Qd4 dc4 15.Qc4+–) 14.Bg7 Rg8 15.Qd4 Qa5 (15...dc4 16.Nc3 Bb5 17.Be5+–) 16.Nc3 Qa1 (16...dc4 17.Qe5 Rg7 18.Qg7 (18.Qb8?! Ke7 19.Kd2 Qa3+–) 18...Bb5 19.Rh2+–) 17.Bd1 e5 (17...f6 18.Qf6 Ng4+–) 18.Qe5 Be6 19.Qb8 Ke7 20.Qb7 Bd7 21.Nd5 (21.Nd5 Ke6 22.Qb6 Kf5 23.Ne7 Ke4 24.Qb7 Bc6 25.Qc6 Kd3 26.Qd5 Qd4 27.Qd4) 1–0. GuestMTYT – Hrekall, freechess.org, 2020.

8.Ba1 Bd6 9.Be2 0-0 10.0-0 c5 11.c4 Qb6 12.Qb3 (12.Bf6 gf6 13.cd5 ed5+= (13...Bb5?? 14.Qb3+-)) 12...Nc6 (12...dc4 13.Qc4 Nd5 14.Nc3+=) 13.Nc3 (13.Bf6!? gf6 14.cd5+/-) 13...Na5= 14.Qa2 (14.Na4 Qc7 15.Qc2=) 14...Ra8 (better 14...Nc4!? 15.Bc4 dc4 16.Qc4 e5=+) 15.cd5+= Nd5 (15...e5 16.Qb2+/-) 16.Nd5+/- ed5 17.Qd5 Be6 18.Qg5 g6?? (better 18...Bf8+/-) 19.Qf6+- Kf8 20.Ng5 (20.Qh8!? Ke7 21.Bf6 Kd7 22.Qa8 c4+-) 20...Ke8 21.Ne6 (better 21.Qh8 Bf8 22.Nh7 Ke7 23.Bf6 Kd6 24.Nf8 Nc4+-) 21...fe6 22.Qe6 Kd8 (22...Kf8 23.f4 c4+-) 23.Qg8 (23.Qg8 Kd7 24.Bg4 Kc7 25.Qa8 Qb5 26.d4+-) 1-0. zembelek (2115) - tarn (2120), Rated Blitz game, lichess.org, 2014.

8.Ba1 Bd6 9.Be2 0-0 10.0-0 Re8 11.c4 dc4 12.Bc4 Nd5 (12...Bc8!?+=) 13.e4 (13.e4 Nb6 14.Be2+=) 1–0. GuestXGNX – GuestVWJJ, freechess.org, 2019.

8.Ba1 Bd6 9.Be2 c5 10.c4 0-0 11.Ne5 Ne4 12.0-0 f6 (12...Qa5 13.Bb2=) 13.Nd7+= Nd7 14.cd5 ed5 15.d3 Ng5 16.Nc3 d4 (16...Nb6 17.f4 Nf7 18.Bg4=) 17.Qb3 Kh8 18.h4 Nf7 (18...dc3 19.hg5 fg5 20.Bc3+=) 19.Ne4 (19.ed4 f5 20.dc5 Nc5+/-) 19...Be7 (19...de3!? 20.fe3 Qe7+=) 20.ed4+/- f5 (20...cd4!? 21.Qd5 f5 22.Qd4 Nfe5+/-) 21.Nc5+- Bc5 22.dc5 Nc5 23.Bg7! Kg7 24.Qc3 Qf6 25.Qc5 Qh4 (25...Re8 26.Bf3 Re5 27.Qc4+-) 26.Qf5 Ng5 (26...Re8 27.Bh5 Re7 28.Bf7 Rf7 29.Qe5 Kg8 30.g3+-) 27.Qd5 Rf7 (27...Kh8+-) 28.f4! Rf4 (28...Nh3 29.gh3 Qh3+-) 29.Qe5 (29.Qe5 Kh6 30.Rf4 Nh3 31.gh3 Qg5 32.Qg5 Kg5 33.Rf3+-) 1-0. onur604 (2320) - Barnak (2180), Casual Rapid game, lichess.org, 2021.

8.Ba1 Bd6 9.Be5 =.

8.Ba1 Be7 9.c4 dc4 10.Bc4 0-0 11.Nc3 Bb4 12.0-0 Qe8 13.Qb3 b6?? (better 13...Qe7+=) 14.Qb4+– 1–0. GuestGHWF – GuestTCTM, freechess.org, 2017.

8.Ba1 Be7 9.Be2 0-0 10.0-0 Ne4 (10...c6 11.bc6 Nc6 12.Ne5=) 11.d3 Nd6 (11...Nf6 12.c4=) 12.c4+= dc4 (12...c6 13.Nc3+=) 13.dc4 c6? (better is 13...f6+=) 14.Be5+– Be8 (better is 14...Bc8 15.c5 Nb5 16.Bb8 Qd1 17.Rd1 Bc5+–) 15.c5 Nb5 (15...Ne4 16.Qd8 Bd8 17.Bb8+–) 16.Qd8 Bd8 17.Bb8 Be7 18.Bb5 cb5 19.Bd6 Bd6 20.cd6 Bc6 21.Rd1 (21...Rd8 22.Rd4+–) 1–0. Ackermann,P – Budde,U, corr, 1993.

9.c4 cb5 10.cb5 Qa5 11.Be5 Qa7 12.Bd3 Ng4 (12...Be7!?+–) 13.Bd4+– Qa6 1–0. DEFFM – GuestNGQL, freechess.org, 2019.

9.c4 cb5 10.cb5 Bc8=.

9.c4 cb5 10.cd5 Nd5 11.Be2 (11.Nc3 Nc3 12.Bc3 b4=) 11...Bd6 (11...b4!?–/+) 12.Bg7 Rg8 13.Be5 (13.Bb2 Rg2 14.Bf1 Rg8=+) 13...Be5 14.Ne5 Rg2 15.Bh5 Rg7 (15...Nc6 16.Nf7 Qh4 17.Qf3=+) 16.Qf3 Can f7 get defended? (16.Nf7 Qh4 (worse 16...Rf7 17.Rg1 Qh4 18.Rg8 Ke7 19.Bf7+=) 17.Nd6 Ke7 18.Nb7 Nb4–/+) 16...Qe7 (16...Qf6 17.d4–/+) 17.Ke2 (17.Nf7 Bc6 18.Ne5 Kd8 19.Nc3=+) 17...Nf6 (better 17...Bc6!? 18.e4 Qg5 19.Bf7 Ke7–+) 18.Qb7= Nh5?? (better 18...Qd6 19.Nd7 Nbd7+=) 19.Qb8+– Qd8 20.Qb7 (better 20.Nd7 Rg5 21.h4 Rd5+–) 20...Nf6? (better 20...f6 21.Nd7 Qd7 22.Qb8 Kf7+–) 21.Rc1+– Nd5 22.Nd7 (22.Qd7?! Qd7 23.Nd7 Kd7=) 22...Qd7 23.Rc8 (better 23.Qb8 Ke7 24.e4+–) 23...Ke7+= 24.Qb8 Kf6 (24...Rg4 25.Nc3 Rc4 26.Rg8 Nc3 27.dc3+=) 25.e4+– Nb4 26.Qf4 Kg6 27.Rc3 h6?? (better 27...h5+–) 28.Rh3+– h5 (28...f6 29.Rh6 Kf7 30.Qf6 Kg8 31.Qe6 Qe6 32.Re6 Nc2 33.Re8 Kf7+–) 29.Qg3 Kf6 30.Qh4 (better 30.e5 Ke7 31.Qg7 Qd4+–) 30…Ke5 (30...Ke5 31.f4 Kd6+–). GuestDQLY – GuestPHLN, freechess.org, 2019.

9.c4 dc4 10.Bc4 cb5 11.Be2 Bc6 12.0-0 Bd6 13.d3 Qc7 (13...0-0 14.Qb3=+) 14.Bf6= gf6 15.Nbd2 Rg8 16.Ne4 Be4 17.de4 f5? (better 17...b4=) 18.Bb5+- Kf8 19.ef5 ef5 20.Qb1 f4 (20...Kg7 21.Rc1 Qd8 22.Bc4+-) 21.Qh7 fe3 22.fe3 Qb6?? (22...Rg7 23.Qh8 Rg8 24.Qh6 Rg7+-) 23.Ng5!! Qe3 (23...Rg5 24.Qf7 The nicest combinations are those leading to mate) 24.Kh1 Qg5 (24...Qg1 25.Kg1 Bc5 26.Kh1 Ke7 27.Rf7 Kd6 28.Qd3 Ke5 29.Rf5) 25.Rf7 (25.Qf7?!=) 1-0. DEFFM – GuestWGGV, freechess.org, 2020.

9.c4 dc4 10.bc6 bc6 11.Bc4+= Qa5 12.Be5 Na6 13.0-0 Ng4 14.Bc3 Bb4 (14...Nb4!?+/-) 15.Bg7+- Rg8 16.Bc3 Bc3 17.Nc3 Nc5 (17...Nb4 18.d4+-) 18.Qb1 Ke7 (18...Nf6 19.Rc1+-) 19.Qh7 Rb8? (19...Nf6 20.Qc2 Nd5+-) 20.Qg7 Nf6 21.Ne5 Rg8 (21...Be8+-) 22.Qf7 (22.Qf7 Kd8 23.Qf6 Kc7 24.Rc1+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.c4 dc4 10.bc6 Nc6 11.Bc4= Be7 12.0-0 0-0 13.d4 Na5 (13...Qc7 14.Ne5=) 14.Bd3 b5 (14...Qc7 15.Qe2=) 15.Ne5 Qb6 (15...Qc7 16.Nd2=) 16.d5 (16.Nd7 Nd7 17.Qh5+=) 16...ed5 (better 16...Bc8=) 17.Nd7+– Nd7 18.Bg7! Kg7 19.Qg4 Kh8 20.Qd7 Qe6 21.Qb5 Nc4 (21...Nc6 22.Nc3 Nb4 23.Rb1+–) 22.Nc3+– Rd8 (22...Nb6 23.Rb1 Rc8 24.Ne2+– (24.Qb6?! Qb6 25.Rb6 Rc3+–)) 23.Nd5! Qd5 (23...Rd5 24.Qe8 Double attack (24.Qe8 Decoy; 24.Qc4 Remove defender); 23...Qd5 24.Qc4 Remove defender) 24.Qd5 (24.Qc4 Qd3 25.Qf7 Qe4=+) 24...Rd5 25.Bc4 (25.Bc4 Rf5 26.Rd1+–) 1–0. GuestDDNK – GuestHYMT, freechess.org, 2019.

9.c4 c5 10.Ne5 (10.Be5 Be7+–) 10...dc4 (10...Bd6 11.Bd3=) 11.Bc4 (11.Nc3 Bc8+=) 11...b6 (11...Bc8 12.Qf3+=) 12.0-0 (12.Nc3 Qc7 13.Ng4 Be7+–) 12...Bd6 13.f4 (better 13.Ng4 Bc8 14.Nf6 gf6 15.f4+–) 13...Ne4?? (better 13...Bc8+–) 14.Qg4+– 0-0 (14...Rf8 15.Qg7 Qf6 16.Qh7 Qf5+–) 15.Nd7 Nf6 1–0. DEFFM – GuestNNLY, freechess.org, 2018.

9.bc6 bc6 10.c4 Bd6 11.d4 0-0 12.Nbd2 c5 (12...Bb4 13.Bd3=) 13.cd5 Nd5 (13...ed5 14.dc5 Bc5 15.Bd3=) 14.dc5 (14.Ne4 Qa5 15.Nfd2 Be7+=) 14...Bc5 15.Bc4 (15.Ne5 Nc6=) 15...Nf6 (15...Nc6 16.0-0=) 16.Qc2 Be7 17.Ng5+= g6 18.0-0 Kg7 19.Nde4+/– h6 20.f4 Bc6+= 21.Ng3 hg5 22.fg5+/– Nbd7 23.Be6! fe6 24.Qc6 e5 25.Rd1 Rf7 26.gf6 Bf6 27.Ne4 Qa5 28.Bc3 Qa7 29.Re1 Qb8 30.Rf1 Qd8? 31.Qd6 Qf8 32.Nf6 Nf6 33.Qe5 (33...Qd8 34.g4+–) 1–0. Bendig,Frank – Wallace,Gary, corr or01–001 E–mail, 2001.

9.bc6 bc6 10.Be2 Bb4 =.

9.bc6 bc6 10.Be2 Ne4 11.0-0 Qa5 12.Nc3 Bb4 13.Ne4 de4 14.Ne5 Bd2 15.Nc4 1–0. Machete99 – guest162, ICC, 2002.

9.bc6 bc6 10.Be2 Be7 11.0-0 0-0 12.d4 c5 13.c4 dc4 14.Bc4 cd4 15.Nd4 Bc6 16.Nc6 Nc6 17.Bf6 Bf6 18.Qe2 Ne5 19.Nd2 Nc4 20.Nc4 ½–½. Kaltschmidt,Andreas – Wenski,Wolfgang (1620), 2nd Rottal Open, 2018.

9.bc6 Nc6 10.Bb5 =.

9.Bd3 cb5 10.Ne5 Bd6 11.f4 (11.Nd7 Nbd7 12.Bb5 0-0=) 11...Nc6 (11...b4!?=+) 12.Nd7= Nd7 13.Qg4 g6. DEFFM – GuestSCBL, freechess.org, 2019.

9.Be2 cb5 10.0-0 Bc6 11.Nc3 Attacks the isolani on b5 11...b4 12.Na2 Na6 13.Nd4 Be7 (13...Bd7!?=) 14.Ba6+= e5? (better 14...Qa5 15.Nc6 bc6=) 15.Nc6+- bc6 16.Qb1 Qb6 (16...Bd6 17.Bd3 Qe7 18.f4+-) 17.Be2 Bd6 18.d4 e4 19.c3 c5? (19...b3 20.Nc1 b2 21.Qb2 Qb2 22.Bb2 Kd7+-) 20.dc5 Bc5 21.c4 (better 21.cb4!? Be7+-) 21...0-0 22.cd5 Nd5 23.Qe4 Rd8 (23...Qe6 24.Qc4 Be7 25.Bg4+-) 24.Rb1 (24.Rd1 b3 25.Bc4 Nf6 26.Rd8 Qd8 27.Bf6 Qf6+-) 24...b3 (24...Qe6 25.Qc4 Rc8 26.Qb3+-) 25.Bc4 Nb4 (25...Qe6 26.Nc3 Qe4 27.Ne4+-) 26.Nb4 Qb4 (26...Bb4 27.Bb3 Qg6 28.Bf7 Qf7 29.Qb4+-) 27.Qf4 h6 (27...Rd7 28.Qg4 Bf8 29.Bg7 Bg7 30.Bf7 Kf7 31.Qb4 b2+-) 28.Qf7 Kh8 (28...Kh7 29.Qg7) 29.Qg7 1-0. DEFFM – GuestNLVP, freechess.org, 2021.

9.Be2 Bd6 =.

9.Be5 Ne4 10.d3 (10.Bd3 f6 11.Bd4 Nc5 12.Bc5 Bc5=) 10...Nc5 (10...Nd6 11.bc6 Nc6 12.Bc3=+) 11.Nbd2 (11.b6 Nca6=) 11...f6 (11...cb5!? 12.d4 Na4=+) 12.Bg3= e5 (better 12...Kf7 13.c4 cb5 14.cd5 ed5=) 13.Ne5+– fe5?? (better 13...Bf5 14.Nef3 Bd6+–) 14.Qh5+– g6 15.Qe5 Be7 (15...Be6 16.Qh8 Nbd7 17.Qh7 Bf5+–) 16.Qh8 (16.Qb8?! Qb8 17.Bb8 cb5+–) 16...Bf8 17.d4 Ne6 (17...Ne4 18.Ne4 de4 19.Bd6 Qa5 20.Kd1 Bg4 21.f3 Qa1 22.Kd2+–) 18.Qh7 (18.Qh7 Qc8 19.Qg6 Kd8 20.e4+–) 1–0. GuestVNCM – GuestHQQK, freechess.org, 2020.

9.Ne5 Qa5 10.Bc3 Qc7 11.Be2 Bd6 12.f4 cb5 13.Nd7 Qd7 14.Bf6 gf6 15.Nc3 b4 16.Nb5 Be7 17.0-0 Rg8 (17...Nc6 18.Qa1=) 18.Bd3 f5 19.Qh5 Rg7 (19...Bf6 20.Rb1= (20.Qh7?? Rh8 21.Qh8 Bh8–+)) 20.Ra1 Na6 21.Nd4 Qc8 22.Bb5 Kf8 23.Ba6 ba6 24.Qe2 Rg6 (24...Bf6 25.Qa6 Qa6 26.Ra6 Bd4 27.ed4 Rg4+=) 25.Qa6+– (worse 25.Ra6 b3 26.Ra1 bc2=) 25...Qc5 (25...Qa6!? 26.Ra6 Bf6+–) 26.Qb7 Bf6?? (better 26...b3 27.Nb3 Qb4+–) 27.Ne6! fe6 (27...fe6 28.Ra8) 28.Ra8 (28.Ra8 Qc8 29.Rc8 Bd8 30.Rd8) 1–0. GuestPVDY – GuestHYBX, freechess.org, 2019.

9.Ne5 Bd6 10.f4 Qc7 (10...0-0 11.Nc3=) 11.c4 (11.Ng4!? Be7 12.Be5=) 11...0-0= 12.Bd3 dc4 (12...Ne4 13.cd5 ed5 14.Nc3=) 13.b6+= Qb6 (13...Qd8 14.Nc4 Be7 15.Bf6 Bf6 16.0-0+=) 14.Nc4 Qc7?? (better 14...Qc5 15.Bd4 Qd5+=) 15.Bf6+– gf6 16.Qh5 (16.Qg4 Kh8 17.Qh4 f5 18.Qf6 Kg8+–) 16...f5 17.Qg5 Kh8 18.Qf6 (18.Nd6?! f6 (worse 18...Qd6 19.Qf6 Kg8 20.Rf1+–) 19.Qh6 Qd6=+) 18...Kg8 19.0-0 (19.0-0 Qd8 20.Qh6+–) 1–0. DEFFM – GuestLPNN, freechess.org, 2019.

6.c4 0-0 7.Qb3 a5 (7...Bd6 8.Nc3=) 8.a3 Be7 (8...Bd6 9.Nc3=) 9.Nc3 c6 10.cd5 Nd5 11.Bd3 (11.Nd5 cd5 12.Rc1 a4=) 11...Nc3 12.Qc3 Do you see the mate threat? 12...Bf6 13.Ne5 (13.Qc2 Bb2 14.Qb2 b6=) 13...cb5 14.Qc2 Be5 (14...h6 15.Nd7 Nd7 16.Bb5=) 15.Be5 g6 (15...f5 16.Qb2 Qg5 17.0-0=) 16.0-0 Bc6 17.f3 (17.Bc3 Nd7=) 17...Nd7 18.Bf4 (18.Bd4 Rc8=) 18...e5+= 19.Bg3 Rc8 (19...Qe7 20.Rfb1+=) 20.Qb2 (20.Rfc1 Qf6+=) 20...Nc5 21.Bb1 e4 22.fe4 Ne4 23.Be4 Be4 24.Rac1 Rc1 25.Rc1 Qd3 26.Rf1 Rd8?? d2 becomes a target 27.Qf6+– Rd7 28.Be5 (28.Be5 Qf1 29.Kf1+–) 1–0. Woschkat,Karl_Heinz – Angus, email CTON, 1997.

6.c4 dc4 7.Bc4 0-0 8.Qb3 Ba5 9.0-0 Bb6 10.a4 c6 11.Nc3 cb5 12.ab5 Re8 13.d4 a6 14.Ne5 Bc7 (14...a5 15.Rfd1+–) 15.Bd3 (15.Rfd1 a5+–) 15...a5 16.Qc2 (16.Nc4 b6+–) 16...b6 (16...Bc8 17.f4+–) 17.Ba3 (17.Ra4 g6+–) 17...h6 (17...g6 18.f4+–) 18.Ne4 (18.f4 Bc8 19.Rac1 Ra7+–) 18...Ne4 (18...Be5 19.de5 Ne4 20.Be4+–) 19.Be4 Ra7 (19...Be5 20.Ba8 Bf6+–) 20.Bh7 Kh8 21.Nf7 1–0. DEFFM – GuestABCK, freechess.org, 2019.

6.c4 c6 7.Qb3 Qe7 8.cd5 ed5 9.bc6 Nc6 10.a3=.

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c6=.

6.Be2 Ne4 7.c4 dc4 8.0-0 (8.Qa4 Bf8=) 8...Nf6 (better 8...Bb5!? 9.Qc2 Nf6–/+) 9.Bc4= Qe7 (9...c6 10.Qb3 Bd6 11.d3=) 10.Ne5+= Bd6 (10...c6 11.Qf3+=) 11.Ng4 (11.Qf3 Bc8+=) 11...Ng4 12.Qg4 g6?? (better 12...f6+=) 13.Bh8+– Bh2 (13...e5 14.Qd1 a6+–) 14.Kh2 Qd6 (14...a6 15.ba6 Na6 16.d4+–) 15.Kg1 Qb4 (15...a6 16.a4+–) 16.Nc3 c6 17.Ne4 Qc4 (17...f5 18.Nf6 Kd8+–) 18.Nd6 (18.Nd6 Ke7 19.Nc4+–) 1–0. DEFFM – GuestFGOX, freechess.org, 2018.

6.Be2 a6 A) 7.a4 Bb4 (7...Bd6 8.0-0 0-0 9.Ne5 c5 10.f4 c4 11.Nc3 Bc5 12.Bf3=) 8.0-0 0-0 9.Nc3 Bd6 10.ba6 Na6 11.a5 c5 12.ab6+=; B) 7.ba6 Be7 (7...Na6 8.0-0 Be7 9.Ne5 0-0 10.Nc3 Nc5 11.d4 Na6 12.Ba6=) 8.a4 Na6 9.a5 c5 10.ab6 Qb6 11.Be5 0-0 12.0-0=.

6.Be2 c5 7.c4 dc4 8.Bc4 Be7 9.0-0 Nd5? (better 9...a6!? 10.Qa4 0-0=) 10.Bg7+– Rg8 11.Bb2 Nc7 (11...Bf6 12.Ne5+–) 12.Ne5 Bb5? (better 12...Bf6 13.Qh5 Rg7+–) 13.Qf3+– Nd7 1–0. DEFFM – GuestLZWH, freechess.org, 2018.

6.Be2 c6 7.a4 a6 8.Be5 ab5 9.ab5 Ra1 10.Ba1 Be7 11.Nc3 0-0 12.0-0 =.

6.Be2 c6 7.a4 a6 8.Ne5 ab5 (8...Bd6 9.0-0=) 9.ab5 Ra1 10.Ba1 cb5 11.Nd7 Nbd7 12.Bf6 Qf6 13.Bb5 Qb2 (13...Bd6 14.c3=) 14.c4 (14.Nc3 Bd6+=) 14...dc4= 15.Nc3 Bb4 16.0-0 Bc3 17.Bd7 Kd7 18.dc3 Ke7 19.Qd4 Rd8 20.Qc4 f6 (20...b5 21.Qh4 Ke8 22.Qh7 Qc3 23.Qh8 Ke7 24.Qh5=) 21.h3 (21.e4 Rd2+=) 21...Rd2 22.Qc8 f5 (22...Kf7 23.Qb7 Kf8 24.Qe4 Qc3 25.Qe6=) 23.e4 (23.c4 Kf7+=) 23...fe4 24.Qb7 Kf6 25.Qe4 Qc3 26.Re1 (26.Qh7 Qd4=) 26...Rd6 27.Re3 Qc7 28.Rf3 (28.g3 g5=) 28...Ke7 29.g3 Rd1 (29...g6 30.Qh4 Ke8 31.Qf6 Rd1 32.Kh2+–) 30.Kh2+= h6 (30...Rd5 31.Qh4 Kd6 32.Qh7+=) 31.Qh4+/– Kd6 32.Qf4 (32.Qb4 Qc5 33.Qf4 Qe5 34.Qf8 Kc7+=) 32...e5 33.Qf8 Qe7 34.Qb8 Qc7 35.Qf8 (35.Qe8 Qd7 36.Qg6 Kc5 37.Qc2 Kb5 38.Qe2 Kc6 39.Qe5 Qd5 40.Rc3 Kb7 41.Qg7 Ka6 42.Ra3 Kb5 43.Qb2 Kc6 44.Qf6 Kb5+–) 35...Qe7 36.Qg8 Qb7 37.Qd8 Qd7 38.Qb6 Qc6 39.Qd8 Qd7 40.Qb8 Qc7 41.Qf8 Qe7 42.Qa8 Qc7 43.Rf8 Rd4 44.Rc8 Qb6 45.Rb8 Qc7 46.Rb7 (better is 46.Qa6 Ke7 47.Rb7 Qb7 48.Qb7 Rd7+–) 46...Qc6 47.g4 g6 (47...Rf4 48.Qd8 Kc5 49.Qe7 Kd5 50.Rd7 Kc4 51.Rc7 Rf2 52.Kg3 Rf3 53.Kg2 Rf6 54.Rc6 Rc6 55.Qe5+–) 48.Qd8 Kc5 49.Qa5 Kd6 50.Rg7 (better is 50.Rb6 Rc4 51.Qd2 Ke7 52.Rc6 Rc6 53.Qh6+–) 50...Qc2 (50...Ra4 51.Qd8 Kc5+–) 51.Qa6 (51.Qd8 Kc5 52.Qc8 Kd5 53.Rd7 Ke4 54.Qc2 Kf3 55.Rf7 Rf4 56.Kg1 Rf7 57.Qd3 Kf4 58.Qe3) 51...Kd5+– 52.Rd7 1–0. Nemec,Zdenek (1800) – Valica,Slavo (1800), corr ICCF EM/O1, 2003.

6.Be2 c6 7.a4 Bd6 8.Be5 Be5 9.Ne5 0-0 10.0-0 a6 11.Nc3 Qc7 12.f4 =.

6.Be2 c6 7.Nc3 a6 (7...cb5 8.Nb5 a6 9.Bf6 gf6 10.Nc3 Bb4 11.0-0 Qc7 12.Rb1=) 8.ba6 Bd6 9.0-0 e5 10.a4 e4 11.Nd4 Na6 12.f3 +=.

6.Be2 Bd6 A) 7.Be5 a6 (7...Be5 8.Ne5 a6 9.ba6 Na6 10.0-0 0-0 11.d4 c5 12.Nd2=) 8.Bd6 cd6 9.ba6 0-0 10.0-0 Na6 11.d4 Qc7 12.Na3+=; B) 7.0-0 0-0 (7...a6 8.a4 0-0 9.Ne5 c5 10.f4 c4 11.Nc3 Qe8 12.d3=) 8.Be5 a6 9.ba6 Qe7 10.d4 Na6 11.c4 dc4 12.Bc4=.

6.Be2 Be7 7.0-0 (7.a4 a6 (7...0-0 8.0-0 a6 9.Ne5 c5 10.Nc3 ab5 11.Nd7 Nbd7 12.Bb5=) 8.0-0 0-0 9.Ne5 c5 10.Nc3 ab5 11.Nd7 Nbd7 12.Bb5=) 7...0-0 (7...a6 8.a4 0-0 9.Ne5 c5 10.Nc3 ab5 11.Nd7 Nbd7 12.Bb5=) 8.c4 (8.a4 a6 9.Ne5 c5 10.Nc3 ab5 11.Nd7 Nbd7 12.Bb5=) 8...a6 9.a4 ab5 10.cb5 c6 11.Nc3 Qc7 12.bc6 =. chessxliv (2100) – johnabc, net–chess.com, 2014.

6.a4 Qa5 7.c4 Bb4 8.cd5 ed5 9.Bd3 0-0 (9...Qd8 10.0-0=) 10.Qc2 (10.Bf6!? gf6 11.Nd4+/-) 10...h6 11.0-0 Re8 (11...Be7 12.Bc3 Qd8 13.Bd4=) 12.Bf6+/- gf6 13.Qb2 Kg7 14.Nc3 Bc3 15.dc3 Qd8 16.Qb4 Qe7 17.Qf4 Qe5?? (better 17...a6+-) 18.Ne5 (18.Ne5 fe5 19.Qg3 Kh8 20.e4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.a4 Qa5 7.Bd3 Bb4 (7...Bd6 8.0-0=) 8.0-0 cb5 (8...Bd6 9.c4=) 9.ab5+= Qb6 10.Qe2 (10.Be5 0-0+=) 10...a6 11.Bd4 Bc5 12.Be5 (12.Bf6 gf6 13.Nc3 Qd6+=) 12...Ke7 (12...Bd6!?+=) 13.Nc3+/– Bb4 (13...Bd6!?+/–) 14.Rfb1+– a5?? (better is 14...Bc3 15.Bc3 Qd8+–) 15.Rb4! 1–0. Rooijen Van,Peter (1655) – Miemelt,Bernd, OP–2009–0-01036, 2010.

6.a4 Qa5 7.Bd3 cb5 8.ab5+/– Qb6 9.0-0 Bb5? (better is 9...Bc8+/–) 10.Bd4+– Bc5 11.Bc5 Qc5 12.Ra5 a6 13.Bb5 ab5 (13...Nc6 14.Bc6 Qc6+–) 14.Ra8 0-0 15.d4 Qc6 16.Qd3 Na6 (16...b4 17.Nbd2+–) 17.Ne5 Qb6 18.Rf8 Kf8 19.Nc3 b4 20.Rb1 Qa5 21.Ne2 Ne4 (21...g6 22.f3+–) 22.f3 Nd6 (22...Nf6 23.c3+–) 23.Qh7 Qa2 24.Re1 Qc2 (24...Nc7+–) 25.Qc2 (25.Qc2 g6 26.Qa4+–) 1–0. pierre – anony, internet, 2015.

6.a4 b6 7.Ne5 Qc7 8.Nd7 (8.f4!?+/–) 8...Nbd7= (worse is 8...Qd7 9.Qf3+=; worse is 8...Kd7 9.c4+/–) 9.c4 c5 10.Be2 (10.cd5 ed5 11.g3 Be7+=) 10...Rd8 (10...Bd6 11.cd5 ed5 12.f4=) 11.f4 Bd6 12.0-0 0-0 13.Rf3 (13.cd5!? ed5 14.Bf3=) 13...d4+= 14.Qf1 (14.a5+=) 14...de3 (better is 14...e5!?–/+) 15.de3= Ne4 16.Rh3 Ndf6 (16...e5 17.Bf3 f5 18.Be4 fe4 19.Nc3+=) 17.g4+= e5 (17...Be7 18.g5 Nd7 19.Qf3 Ng5 20.fg5 Bg5 21.Nc3+–) 18.g5+/– Nd7 19.Bd3 (better is 19.Qg2 f5 20.Nc3 Nc3 21.Bc3+/–) 19...Qb7?? (19...f5 20.Qg2 Rf7 (20...ef4? 21.Be4 fe4 22.Qe4+–) 21.Be4 fe4 22.Qe4 Nf8+/– (22...ef4 23.Qh7 Kf8 24.Nc3+–)) 20.Qg2+– f5 21.gf6! Rf6 (21...Ndf6 22.fe5 Double attack (22.Be5 Deflection; 22.fe5 Decoy); 21...Nef6 22.fe5 Double attack (22.Qb7 Pinning; 22.Qb7 Deflection; 22.fe5 Decoy); 21...Rf6 22.fe5 Double attack (22.fe5 Decoy)) 22.Be4 Qc7 23.Rh7 Nf8 24.Rh4 Qd7 (24...Rd7 25.Nc3 Be7 26.Nd5+–) 25.fe5 Be5 26.Bd5 Ne6 (26...Qd5 27.cd5 Rg6+–) 27.Be5 Qf7 28.Bf6 Qf6 29.Rf4 (better is 29.Qe4 Rd5 30.cd5 Nf8+–) 29...Qa1 30.Be6 1–0. Stolzenwald,Frank (1625) – Howe,Dietrich (1740), Kiel GER, Open–B, 2014.

6.a4 c5 7.c4 b6 8.Ne5 Bd6 9.f4 a5 (9...Bc8 10.Bd3+=) 10.Bd3+/- Ne4? (10...Bc8!?+/-) 11.Qg4+- Rg8 (11...Qf6 12.Qf3 0-0 13.Nc3 Be5 14.Ne4 (14.fe5?! Qf3 15.gf3 Nc3 16.Bc3 dc4 17.Bc4 Bc8+/-) 14...de4 15.Qe4+-) 12.Nd7 (better 12.Nc3 Kf8 13.cd5 Nc3 14.Bc3 ed5 15.Qh5 (15.Nd7?! Nd7 16.0-0 Nf6+/-) 15...Be5 16.fe5+- (worse 16.Qe5 Bg4 17.f5 f6+-)) 12...Nd7+/- 13.0-0 f5 (13...Ndf6!? 14.Qe2 Bc7+/-) 14.Qh3+- Ndf6 15.cd5 (better 15.Be2 Be7 16.d3+-) 15...Nd5?? (better 15...ed5 16.Qf5 Qd7 17.Be4 de4+/-) 16.Be4+- fe4 17.Qe6 Ne7 18.Qe4 g6 (18...Bc7 19.Nc3 (worse 19.Qh7 Qd7+-) 19...Rc8 20.d4+-) 19.Nc3 Kd7 20.Nd5 Nd5 21.Qd5 Ke8 1-0. DEFFM – Tafra, freechess.org, 2021.

6.a4 c5 7.c4 dc4 8.Bc4 a6 9.Ne5 (9.0-0 Bd6+=) 9...ab5 10.ab5 Ra1 11.Ba1 b6 (11...Bd6 12.Ng4 Be7 13.Be5+=) 12.0-0 Ke7. GuestHVPN – Metalpren, freechess.org, 2018.

6.a4 c5 7.c4 Bd6 8.d4 a5 9.Nbd2 0-0 10.Bd3 dc4 (10...Qe7!?+=) 11.Nc4+– Bc7? (better 11...Be7+–) 12.dc5+– 1–0. onur604 (2320) – JustADGTBoard (2010), lichess.org, 2020.

6.a4 g6 7.c4 Bg7 8.d4 0-0 9.Be2 a6 10.Nc3 cb5 (10...dc4 11.ba6 Na6 12.Bc4=) 11.ab5+= b6 (11...dc4 12.Bc4 Qc7 13.Ne5+=) 12.Ba3 (12.ba6 Na6 13.cd5 Nc7 14.de6 Be6+/–) 12...Re8+= 13.Bd6 a5 14.c5 Bf8 (better is 14...bc5!? 15.dc5 Ne4 16.Ne4 Ba1 17.Qa1 de4+/–) 15.Bf8+– Rf8 16.c6 Qc7 17.0-0 Nc6 18.bc6 Bc6 19.Nb5 (19.Qb3 Rfc8+–) 19...Bb5 20.Bb5 Rfc8 21.Ne5 Qd6 22.Qf3 Ra7?? (better is 22...Kg7+–) 23.Qf6 (23.Qf6 Qe7 24.Qe7 Re7 25.Rfb1+–) 1–0. Kleinke,Uwe – Haenecke, corr DDR–ch I749, 1980.

6.a4 g6 7.Be2 Bg7 8.0-0 c5 (8...a6 9.Nc3+=) 9.c4 0-0 (9...a6 10.d4 ab5 11.ab5 Ra1 12.Ba1 dc4 13.Bc4+=) 10.Qc2 a6 (10...Qe7 11.Rc1+=) 11.d3 (11.cd5 ab5 12.ab5 Ra1 13.Ba1 Qe7 14.Bf6 Bf6+/–) 11...ab5 (11...b6 12.Nc3+=) 12.ab5 Ra1 13.Ba1 b6 (13...Qe7 14.Be5+=) 14.Nbd2 (14.Be5 h6+/–) 14...Re8 (14...Bc8 15.Rc1+=) 15.Be5+/– h6 (15...Ng4 16.Bg7 Kg7 17.h3+/–) 16.Qb2 (better is 16.Ra1 Ng4 17.Bg7 Kg7 18.h3+/–) 16...Bc8?? (16...dc4 17.dc4 Qe7 18.Ne4 Ne4 19.Bg7+/–) 17.Ra1 (better is 17.Bb8 Nd7 18.Be5 Ne5 19.Ne5 dc4 20.Ndc4+–) 17...Nbd7+= 18.Bc3 (better is 18.Ra8+=) 18...e5+/– 19.Ra7?? (better is 19.Ne5 Ne5 20.Be5 Re5 21.Qe5–/+) 19...d4–+ 20.e4 (20.Nb1 dc3 21.Nc3 e4–+) 20...dc3 21.Qc3 Re7 (21...Nh5 22.g3–+) 22.Qa3 (22.Ne1 Nb8 23.Ra8 Qd6–+) 22...Nf8 (22...Nh5 23.Ne1 Nf4 24.Bg4–+) 23.Ra8 Qc7 24.Nf1 Bb7 25.Ra7 Qd6 26.Ne3 Bc8 27.Ra8 Bg4 28.Nd5 Nd5 29.cd5 Rd7 30.h3 Bf3 31.Bf3 Rd8 32.Ra7 Rd7 33.Ra8 Rd8 34.Ra6?? Nd7 35.h4 Nb8 36.Ra7 Rd7 37.Ra8 Rd8 38.Bg4?? h5–+ 39.Bh3 Nd7?? 40.Ra7 Nf6 41.f3 Rd7?? 42.Bd7= Nd7 43.Qa6 Kh7?? 44.Qb7+– c4 45.dc4 Nf6 46.Qf7 Qf8 47.Qf8 Kh6 48.Qg7# 1–0. Fredek (2065) – URKO (1615), Freundschaftspartie, 5m + 0s, 2006.

6.a4 h6 7.c4 dc4 (7...a6 8.cd5 Nd5 9.Nc3=) 8.Bc4 cb5 (8...a6 9.ba6 Na6 10.0-0=) 9.ab5+= a6 (9...Bd6 10.0-0+=) 10.0-0 (10.Be5 Ne4+=) 10...Bd6 11.Be5 Qe7 12.Qb3 0-0 13.Nc3 Be8 (13...Rd8 14.d4+–) 14.d4+– Nd5 (better 14...Bd7!?+–) 15.Bd5+– ed5 16.Nd5 Qe6 (16...Qd8 17.Rfc1 Bb5 18.Bd6 Qd6 19.Nc7+–) 17.Rfb1 Bb5? (17...Nd7 18.Bd6 Qd6+–) 18.Nb6 Nd7 (18...Qb3 19.Rb3 Be5 20.Ne5+– (20.Na8?! Bd6+–)) 19.Qe6 fe6 20.Nd7 (20.Na8!? Ne5 21.Ne5 Be5 22.de5 Rc8+–) 20...Bd7 21.Bd6 Rfd8 22.Rb7 Rac8 (22...Bc6 23.Rb6 Rd6 24.Ne5+–) 23.Be5 Rc6 (23...Ra8 24.Bg7! Bc6 25.Re7 Bf3 26.gf3+–) 24.g3 (better 24.h4 Kh7+–) 24...Rdc8 (24...g6+–) 25.Rd7 Rc1 (25...g5 26.Nd2+–) 26.Rc1 Rc1 27.Kg2 a5 28.Rg7 Kf8 29.Rg6 a4 30.Bd6 Kf7 31.Ne5 Ke8 32.Rg8 1–0. DEFFM – GuestCQXF, freechess.org, 2018.

6.a4 h6 7.Ne5 Bc8= 8.c4 (8.f4 Nbd7=) 8...Nbd7 (8...Bd6!?=+) 9.bc6= Ne5 10.cb7 Bb7 11.Be5 dc4 12.Bc4 Bg2 (12...Nd7 13.Bb5+=) 13.Bb5 Nd7 14.Rg1 Bd5 (14...Bb7!?+=) 15.Nc3+– (15.Bg7? Bg7 16.Ra3 Rg8–+) 15...Rg8?? (better 15...a6 16.Nd5 ed5+–) 16.Nd5+– ed5 17.Qf3 a6 18.Bc6 Rc8 19.Qd5 f6?? (19...Qe7 20.Rc1 Qe6 21.Bd7 Qd7 22.Rc8 Qc8+–) 20.Qe6 Be7 21.Qg8 (21.Qg8 Bf8 22.Rg7 Qe7 23.Re7 Ke7 24.Qh7 Bg7 25.Qg7 Ke6 26.Qd7 Ke5 27.d4) 1–0. GuestLBCN – GuestHCMN, freechess.org, 2020.

6.c4 a5 7.a3 (7.Nc3 Bd6=) 7...a4 (7...dc4 8.bc6 Bc6 9.Bc4=) 8.Nc3 Be7 (8...dc4 9.Bc4 Bd6 A) 10.Na4? cb5 11.Be6 fe6–+ (worse is 11...Ra4 12.Bb3–+); B) 10.bc6 Bc6 11.Nb5=) 9.Ne5 (9.cd5 ed5 10.bc6 Nc6+=) 9...dc4= Black launches an attack 10.Bc4 cb5 11.Nb5 0-0 12.Nd7 Nbd7 13.Nc3 (13.d4 Nb6 14.Bd3 Rc8=) 13...Ne5+= 14.Bb5 Nd3 15.Bd3 Qd3 16.Na4 (16.Qe2!? Rfd8 17.Qd3 Rd3 18.Rb1=) 16...Qe4–/+ 17.Nc3 (17.Bf6 Bf6 18.d4 Qg2–+) 17...Qg2 18.Ke2 Qg4 (18...Rfd8 19.d3–/+) 19.Kf1 (19.Ke1 Qh3 20.Ne2 Rfd8–/+) 19...Qh3 20.Ke2 Rfd8 21.Qg1 (21.d3 Qg4 22.Ke1 Qd1 23.Kd1 Rd3 24.Ke2 Rdd8–/+) 21...Qf5 22.Qd1?? (22.Qb1 Qg4 23.Ke1 Qg2–/+) 22...Qd3 (better is 22...Ng4 23.Qg1 Ne5–+) 23.Ke1–/+ Nd7 24.Qe2 Nc5 25.Rg1?? Qc2–+ 26.Rg7 Kg7 27.Nd1 Kf8 28.Bc3 Ne4 29.Bd4 Ra3 30.Ra3 Ba3 31.f3 Nc5 32.Qg2 Nd3 33.Ke2 Nf4! 34.ef4 Rd4 35.Ke3 Rd3 (35...Rd3 36.Kf2 Rd2 37.Kg3 Rg2 38.Kh3 Rh2 39.Kg4 Qg6#) 0–1. Reimer,K – Kratz, Mehlingen Pfalz, 1992.

6.c4 Bb4 7.cd5 ed5 8.a4 0-0 9.Nc3 Re8 10.Nd4 c5 11.Nf3 (11.Na2!? a5 12.ba6 (< 12.Nb4 ab4 13.Nf3 Bg4=+) 12...Na6 13.Ba6 ba6 14.Nb4 cb4 15.Qb3=) 11...Bg4 12.Be2 Bh5 13.0-0 Nbd7 14.Ne1 Be2 15.Qe2 d4 16.Nd1 Nb6 17.Qf3? (better is 17.a5 Nbd5 18.Nd3=+) 17...Nc4 (17...Bd2?! 18.Qb7 Nfd5 19.Nf3–+) 18.Bc1 Rc8 (18...Ne4 19.d3 Ned2 20.Qh5 de3 21.Ne3–+) 19.Nd3? (19.ed4!? Nd2 20.Bd2 Bd2 21.Nc2–/+) 19...Bd2 (better is 19...de3 20.N1b2 Nb2 21.Nb4 Nc4–+ (< 21...cb4 22.Bb2 Qd2 23.Bf6–+)) 20.N1b2 Nb2 21.Nb2 Bc1 22.Rac1 d3 (22...Qd5!?–/+) 23.Qb7 h6 (23...d2 24.Rc2 c4 25.Qa7 c3–+) 24.Rfd1+/– d2 25.Rc2 Ne4 26.f3 Ng5?? (better is 26...Rc7 27.Qa6 Qg5=+) 27.Rcd2+– Qf6 28.e4 (28.Qa7 c4 29.Rd4+/–) 28...c4+/– (29.Nc4 Rc4 30.Qa7 Qg6+=) +=. bashful – MVLousProfits, Live Game Caissa's Web, 2004.

6.c4 dc4 7.bc6 Bc6 8.Bc4 Be7 9.0-0 0-0 10.Nc3 Nbd7 (10...a6=) 11.Ne2 (11.Nd4 Rb8=) 11...Rc8 (11...Bf3!? 12.gf3 Rc8-/+) 12.Nfd4=+ Bg2 13.Ne6 Qa5 (13...fe6 14.Be6) 14.Kg2+= Rc4 (14...fe6!? 15.Be6 Kh8+=) 15.Nf8+/- Rg4 (15...Bf8 16.d3 Rc7 17.Nd4+/-) 16.Ng3 Bf8 17.f3 Rg6 18.Kh1 Bd6 19.Ne4 (better 19.Bc3!? Qg5 20.Bf6 Qf6 21.f4+/-) 19...Bh2= Threatening mate: Qh5 20.Nf6 (20.Kh2 Decoy theme: h2 20...Qh5 A classical mating theme) 20...Nf6 21.Qc2?? (21.Rc1 Bc7 22.f4-+) 21…Bc7 (21...Bc7 22.Qg6 fg6-+) 0-1. algernon (2535) - rollerblade (2595), net-chess.com, 2022.

6.Be2 cb5+= 7.a3 (7.Ne5 Bd6+=) 7...Bc6 (7...Bd6 8.Be5 Be5 9.Ne5–/+) 8.0-0 Bd6 9.Nd4 (9.Be5 Be5 10.Ne5 0-0–/+) 9...a6 10.f4 Qc7 (10...0-0 11.Nc3–/+) 11.Nc6 (11.Qe1 Nbd7+=) 11...Nc6 12.a4 (12.Bf6 gf6 13.Qe1 d4–/+) 12...ba4 13.c4 (13.Ra4!? Be7 14.Nc3–/+) 13...dc4–+ 14.Bc4 (14.Bf6 gf6 15.Bc4 b5–+) 14...b5 15.Be2 (15.Bf6 gf6 (15...bc4?! 16.Bg7 Rg8 17.Bc3=) 16.Be2 Nb4–+) 15...e5 (15...Be7 16.Qc2–+) 16.Na3 (16.Bf3 e4 17.Bg4 Ne7–+ (worse is 17...Ng4 18.Qg4 f6 19.Qf5–/+)) 16...0-0 17.Rc1 Rfc8 (17...ef4?! 18.Bf3 fe3 19.Rc6 Bh2 20.Kh1=) 18.Be5 (18.fe5 Be5 19.Rc6 Bh2 (19...Qc6?! 20.Be5 Nd5 21.Bd3=) 20.Kh1 Qc6 21.Kh2 Ne4–+) 18...Be5 (18...Ba3?! 19.Bc7 Bc1 20.Be5=) 19.fe5 Qe5 20.Bf3 Qe8 (20...Qd6 21.Qc2–+) 21.Re1 (21.g4 h6–+) 21...Ra7 22.d4 (22.Rf1 Rac7–+) 22...Rac7 23.d5 (23.Qd2 Qe7 24.Rc5 Ne5 25.Re5 Qa3–+) 23...Ne5 24.Rc7 Rc7 25.e4 Qf8 26.Nb1 Rc4 27.Qe2 (27.Kf1 Qc5 (27...Nf3?! 28.gf3 Qc5 29.Nd2–+) 28.Qe2 Rc2–+) 27...Qc5 28.Kh1 (28.Kf1 Rc2 29.Qe3 Qe3 30.Re3 Nf3 31.gf3 Rh2–+) 28...a3 0–1. Steingraeber,Barbara (1770) – Schueller,Rudolf (1865), DESC, 2003.

7.Be2 Bd6 =.

7.Ne5? ab5 8.ab5 Ra1 9.Ba1 Qa5 10.Bc3 Bb4 (10...Qc7 11.Qf3=) 11.bc6 bc6 12.Bb4 Qb4 13.c3 (13.Be2 0-0=) 13...Qa5 (13...Qd6 14.d4+=) 14.d4 0-0 15.Bd3 c5 16.0-0 cd4 (16...Ba4 17.Qc1=) 17.cd4 Bb5 18.Bb5 Qb5 19.Nc3 Qa5 20.Qa1 Qa1 21.Ra1 Nbd7 (21...Rc8 22.Nb5 Ne8 23.h4+=) 22.Nc6 g6 23.Nb5 Kg7 24.Nd6 (24.f3 Rc8 25.Ra6 Nb8 26.Nb8 Rb8=) 24...Ne4= 25.Nb7 (25.Ne4 de4 26.h3 Rc8=) 25...Nb8 (better is 25...Rc8!? 26.Nbd8 Nb8 27.Nb8 Rb8+=) 26.Ne5+= f6 27.Nd3 Rf7 (better is 27...Kh6!?+=) 28.Nd8+– Re7 29.f3 (better is 29.Ra8 Nd7 30.Ra7+–) 29...Ng5? (better is 29...Re8 30.Ra7 Kg8+–) 30.Ra8+– Nd7 31.h4 Nf7 (31...Nf3 32.gf3 Nb6 33.Ra6+–) 32.Nc6 Nb6 33.Ra6 (33.Ne7?! Na8 34.e4 Nd6+=) 33...Rb7 (33...Re8 34.Rb6 g5 35.Nc5 gh4 36.Rb8 Rb8 37.Ne6 Kh6 38.Nb8+–) 34.Nc5 1–0. Czuczai,J (2175) – Temes,S (2120), tt–HUN2 Gyor–BEAC, 1996.

7.Ne5? cb5 8.ab5 a5 9.f4 Bd6 (9...Bc8 10.Bd3+–) 10.Be2 (better 10.Bd3+–) 10...Be5? (better 10...0-0+=) 11.fe5+– (11.Be5?! Bc8+–) 11...Ne4 (11...Ng8 12.0-0+–) 12.0-0 Nc5 (12...0-0 13.d3 Nc5 14.Ba3+–) 13.Nc3 (better 13.Ba3 b6 14.Nc3+–) 13...Rg8 (13...Qg5+–) 14.d4 Ne4 15.Ne4 de4 16.Rf4 (better 16.d5+–) 16...f5 (16...Bc8+–) 17.ef6! gf6 18.Bh5 Kf8 (18...Rg6 19.Qg4 Qe7 20.Bg6 hg6 21.Qg6 Qf7 22.Qe4+–) 19.d5 e5 20.Be5 Rg5 (20...f5 21.Qd4 Qe7+–) 21.Bf6 Qe8 22.Bg5 Kg8 (22...Bf5 23.Rf5 Kg8 24.Be8 Nd7 25.Bh6 Ra6 26.ba6 ba6 27.Bd7 a4 28.Rf8) 23.Be8 Be8 (23...Ra6 24.Bf7 Kf8 25.Be6 Kg7 26.Qd4 Kg6 27.Qf6 Kh5 28.g4) 24.Bh6 (24.Bh6 Nd7 25.Qg4 Bg6 26.Qd7 Bf7 27.Qf7 Kh8 28.Bg7) 1–0. GuestNDSG – GuestWRVG, freechess.org, 2020.

7.Ne5? cb5 8.ab5 Bd6 9.f4 (9.Bd4+–) 9...Ne4 (9...0-0!?+=) 10.Qg4+– Be5 (better 10...g5!? 11.Qh5 Rf8+–) 11.Be5+– (11.fe5?! 0-0 12.Ra2 g6+=) 11...Nf6?? (11...Rg8+–) 12.Qg7 Ne4 (12...Rg8 13.Qf6 Qf6 14.Bf6 Bc8+–) 13.Qh8 Ke7 14.Qh7 Qc8 15.Qh4 Ke8 16.Qh8 (better 16.d3 Bb5 17.de4 Bf1 18.Rf1 Nc6+–) 16...Ke7 17.Nc3 a5 (17...Qh8 18.Bh8 f6 19.Ne4 de4+–) 18.Qh4 Ke8 (18...f6 19.Ne4 Qc7 20.Qf6 Ke8 21.Nd6 Qd6 22.Bd6 Bb5 23.Qe7) 19.Ne4 de4 (19...f5 20.Nd6 Kf8 21.Qg5 Qc2 22.Qg7) 20.Bd6 Qd8 (20...f6 21.Qf6 Qc2 22.Qe7) 21.Qh8 1–0. DEFFM – dalma, freechess.org, 2019.

7.Ne5? cb5 8.Nd7 Nbd7 9.ab5 ab5 (9...a5 10.Be2=) 10.Bb5 (10.Bf6 Nf6 11.Bb5 Nd7 12.Ra8 Qa8 13.Bd7 Kd7+=) 10...Ra1= 11.Ba1 Be7 12.0-0 0-0 13.c4 dc4 14.Bc4 Ne5?? (better 14...Qc7 15.d3 Bd6=) 15.Be5+- Nd5 16.Bd5 (16.Qf3 Bd6 17.Bd5 Be5 18.Bb7 Qc7+-) 16...Qd5 17.Bc3 (17.d4 f6 18.Bf4 Rc8+-) 17...Rc8 18.Qf3 (better 18.Qg4!? Qg5 19.Qd4 Rd8+-) 18...Qg5?? (better 18...Qf3 19.gf3 b5+-) 19.Qg3 1-0. AhmedSultanov (1680) - krarorah (1705), lichess.org, 2019.

8.ab5 Ra1 9.Ba1 Qa5 10.Be5+= Qa8 (10...Qd8 11.Nc3+=) 11.Nc3 cb5 (11...Be7 12.bc6 Bc6 13.cd5 ed5 14.Be2+=) 12.cb5 (12.Bf6 gf6 13.cd5 b4+–) 12...Be7+= 13.Bd3 0-0 14.0-0 Rc8 (better 14...Qa5!?+=) 15.Qa1+– Qa1 16.Ra1 Be8 17.Ra7 Nbd7 18.Rb7 Ra8 (18...Ne5 19.Ne5 Bd6 20.Nf3+–) 19.g3 Bb4 (19...Ne5 20.Ne5 Bd6 21.Nc6+–) 20.b6 (better 20.Bf6 gf6 21.Rc7+–) 20...Nc5? (better 20...Ne5!? 21.Ne5 Bd6+–) 21.Ra7+– Ra7 22.ba7 Bc6 23.Bb5 Bb7 (23...Ba8 24.Bf6 gf6 25.Nd4+–) 24.Bf6 gf6 25.Nd4 Ne4 (25...Ba8+–) 26.Bc6 (26.Ne4 de4 27.Bc6 Bc5 28.Bb7 Ba7+–) 26...Bc5 27.Ne4 Bc6 (27...Bd4 28.Bb7 Ba7 29.Nf6 Kg7+–) 28.Nc5 f5 (28...Ba8+–) 29.Nc6 (29.Nc6 Kh8 30.a8Q Kg7 31.Nd7 Kh6 32.Qf8 Kg6 33.Nce5 Kh5 34.Nf6 Kg5 35.Qg7) 1–0. DEFFM – GuestDYVF, freechess.org, 2018.

8.ab5 Ra1 9.Ba1 cb5 10.cb5 Bb4 11.Be5 0-0 12.Qa4 Ne4?? (better is 12...Be7+=) 13.Qb4+– (13...f6 14.Bb2+–) 1–0. orane (2195) – acac (2160), Live Game Caissa's Web, 2004.

8.ab5 Ra1 9.Ba1 cb5 10.cb5 Be7 11.Bd3 (11.Be2 0-0=) 11...Qb6 Attacks the isolani on b5 (11...0-0 12.Bd4=) 12.Nc3 (12.Bd4 Bc5 13.Bf6 gf6+=) 12...Bc8 (12...Qd6 13.Ne2=) 13.0-0 (13.Qc2 Qc5+=) 13...Nbd7= 14.Na4 Qd8 (14...Qd6 15.Qc2 0-0 16.Rc1=) 15.Ne5 g6 (15...0-0 16.Qc2=) 16.Ng4 (16.Nd7 Bd7 17.Qf3 0-0+/–) 16...0-0 17.Nh6 Kg7 18.Ng4 Kg8 19.Qf3 (19.Nf6 Nf6 20.Be2 Bd7+=) 19...Ng4= 20.Qg4 Bf6 (20...e5 21.Bc2=) 21.Nc3 (21.Bf6!? Nf6 22.Qd4+=) 21...Ne5= 22.Qe2 Nd3 (22...Bd7 23.Bc2=) 23.Qd3 Qa5 24.Bb2 Re8 (24...Rd8 25.Ra1 Qb4 26.Qc2=) 25.Ra1 Qd8 26.Qb1 (26.Ra8 Qe7=) 26...Bg7 27.Qc2 (27.Ra8 Qd6=) 27...e5 (27...Bd7 28.d4=) 28.Na4 (28.Ra8 h6+=) 28...Bf5= 29.d3 Qd7 30.e4 (30.Qb3 Ra8=) 30...Be6+= 31.Ba3 (31.ed5 Bd5 32.Nc3 Be6+=) 31...de4 (31...Qb5 32.Rb1 Qc6 33.Qc6 bc6 34.Nc5–/+) 32.de4 Rd8 (32...Qb5 33.Nc5 Rc8 34.Rb1–/+) 33.Nc5 (33.Nc3 f5=) 33...Qc7 (33...Qb5 34.Ne6 fe6 35.h3+=) 34.b6 (34.Qb2 Bc8=) 34...Qc6 (34...Qb6!? 35.Qc1 Qc6–/+) 35.Qb2 (35.Qb1 f5=) 35...Bc8 (35...f5 36.Ne6 Qe6 37.ef5 gf5 38.Qb5+=) 36.Rc1 Qf6 (36...Bh6 37.Rb1 Rd4 38.Qb3=) 37.Nd3 (37.Qb5 Bf8=) 37...Bd7 (37...Bg4 38.Qb1 Qg5 39.Qc2+=) 38.Rc7+= Bc6?? (38...Qe6 A) 39.Rb7? Bc6 40.Be7 Bb7 41.Bd8 Qd6–+ (41...Be4? 42.b7 Bb7 43.Qb7+–); B) 39.Qb1 Bc6 40.Be7+=) 39.Qb3?? (39.Be7!? Qf4 40.Rc6 Qe4+–) 39...Be4?? (better is 39...Qe6 40.Qe6 fe6=) 40.Be7+– Qf5 41.Bd8 Bd3 42.Be7 (42.Rb7!? e4 43.Rb8 Be5 44.Bc7 Kg7+–) 42...h6 (42...Ba6 43.h3 h5 44.Bd6+/–) 43.Rb7+– Qe4 (43...e4 44.Bc5 Be5 45.Qa4+–) 44.Rb8 Kh7 45.Qd1 (45.h3 Bc4 46.Qe3 Qb1 47.Kh2 Bd5+–) 45...Bc4 46.Rd8 Ba6 (46...Be6 47.Bc5+–) 47.Bc5 Be2? (better is 47...Bb7 48.f3 Qc4+–) 48.Qe1 Qg4 49.h3 Qg5 50.Qd2 (50.Qe2?! Qd8 51.b7 e4 52.Qe4 Qc7+–) 50...Qd2 51.Rd2 Ba6 52.Rd7 g5 53.Rf7 Kg6 54.Rc7 (54.b7!? Bb7 55.Rb7 Bf6+–) 54...e4 55.b7 Bb7 56.Rb7 h5 57.g4 hg4 58.hg4 Be5 59.Rb6 (59.Rb6 Kf7 60.Be3+–) 1–0. Font Garcia,Xavier (1720) – Moran Rubio,F (1800), 16th Balaguer Open, 2011. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 Bd7 5.e3 c6 6.a4 a6)

8.ab5 Ra1 9.Ba1 Ne4 10.Nc3 Nc3 11.Bc3 cb5 (11...dc4 12.Ne5=) 12.cb5 (12.cd5 ed5 13.Ne5 Qg5+=) 12...Qb6 (12...f6!?=) 13.Bd4 Qa5 14.Bc3 Qc7 (14...Qb6!?=) 15.Bd3 f6 16.0-0 e5 17.Ne5! fe5 18.Qh5 g6 19.Bg6! hg6 20.Qh8 (20.Qg6 Kd8 21.Qf6 Ke8 22.Qh8 Be6 23.Be5 Qd8+–) 20...Bb5+– 21.Be5 Qc8 22.Ra1 Nd7 23.Qg8 Ne5 24.Qd5 Bc6 25.Qe5 Be7 (25...Kf7 26.Qf4 Qf5 27.Qf5 gf5 28.d4+–) 26.Qh8 (26.e4 Kf7 27.Qf4 Kg7+–) 26...Kd7 27.Qg7 Qe8 28.d4 Kc7? (better 28...g5+–) 29.d5! Bd5 (29...Bb5+–) 30.Qe5 Kc6 31.Rc1 Kb6 (31...Kd7 32.Qd5 Bd6+–) 32.Qd4 Ka6 33.Ra1 Kb5 34.Qd5 Bc5 (34...Kb6 35.Rb1 Bb4 36.Rb4 Kc7 37.Rb7 Kc8 38.Ra7 Qe4 39.Qd7 Kb8 40.Qc7) 35.Rb1 (35.Rb1 Ka4 36.Qc4 Ka5 37.Qc5 b5 38.Ra1) 1–0. DEFFM – GuestXVWV, freechess.org, 2018.

8.cb5 Bd6 9.Ne5 Ne4 (better is 9...cb5!? 10.ab5 Ra1 11.Ba1 0-0=) 10.Nd7+= Nd7 11.bc6 bc6 12.Bg7 Rg8 13.Bb2 Qh4 14.Qe2 Nb6 15.g3 Qd8 16.Qd1 Kd7 17.a5 Nc8 18.Qh5 Qe7 19.Qh7 Rf8 20.Bg2 Nf6 21.Qc2 Na7 22.a6 Nb5 23.h4 Ng4 24.h5 Rg8 25.h6 Be5 26.h7 Qf6 (26...Rh8 27.d4 Bd6 28.Bf3+–) 27.hg8Q (better is 27.d4 Bg3 28.hg8Q (< 28.fg3 Ne3 29.Qf2 Ng2 30.Ke2 Qf2 31.Kf2 Rgb8+–; < 28.hg8R Ne3 29.Qe2 Ng2 30.Kd1 Rg8 31.fg3 Rg3+–; < 28.hg8B Ne3 29.Qe2 Ng2 30.Kd1 Qf2 31.Qf2 Bf2 32.Bf7 Bd4 33.Bd4 Nd4+–) 28...Bf2 29.Ke2 Rg8 30.Rc1+–) 27...Rg8?? (27...Qf2 28.Kd1 Rg8+–) 28.d4 Ne3 (28...Bd6 29.Rf1+–) 29.fe3 (29.de5? Nc2 30.Ke2 Qf5–+) 29...Bg3 30.Kd1 Nd6 31.a7 Ra8 32.Ra6 Nc4 33.Qc4! dc4 34.Bc6 Kc7 35.Ba8 Qf2 36.Be4 Qe3 37.a8Q Qb3 (37...Qe4 38.Qe4 Kd8 39.Rh8 Ke7 40.Ba3 Kf6 41.Rh6 Kg5 42.Bc1 Bf4 43.Qf4) 38.Bc2 (38…Qd3 39.Bd3 Kd7 40.Rh8 Bb8 41.Ba3 cd3 42.Qc6) 1–0. Bonetti,Shane – Rookster, ICC, 2002.

8.ba6 Na6 9.Bc4= Be7 (9...Nc5 10.0-0=) 10.0-0 0-0 11.Nc3 (11.d4 Nb4=) 11...Nc5 (11...Qa5 12.d4=) 12.Qc2 (12.d4 Na6+=) 12...Nd5 (12...Na6 13.d4=) 13.d4+= Na6 14.Qb3 Qc7 (14...Nab4 15.Ba3+=) 15.Rfc1 Bb4?? (better is 15...Nb6+=) 16.Nd5+– ed5 17.Ba6 Ra6 18.Qb4 Rfa8 19.Ne5 Be8 20.Ba3 h6 21.Bb2 Rd8 22.Rab1 Rda8 23.Ra1 Rd8 24.Nd3 b6 25.Nf4 Qa7 26.Ba3 Ra8 27.Qf8 Kh7 28.Bd6 Ra4 29.Ra4 Qa4 30.Nh5 Kg6 31.g4 (31...Qd4 32.ed4 Kg5 33.Qg7 Kh4 34.Bg3 Kh3 35.Nf4#) 1–0. Tilp,Andreas – Strasser, corr, 1987.

8.ba6 b5 9.ab5 cb5 10.d3 cd3 11.a7 =+.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Be2 Bc6 12.0-0 Nbd7 13.Nd4 The isolani on b5 becomes a target 13...Be7 (13...b4 14.Qc2 Qc7 15.Nc6 bc6 16.Bf6 gf6 17.Rc1=+) 14.Bb5= Bb5 15.Nb5 0-0 16.Qe2 Qb6 17.Rc1 Nd5 (17...e5 18.Bb2=) 18.Bd4 Bc5 19.Bb2 Ra8 20.d4 Be7 21.N1c3 N7f6 22.f3 Bb4 23.Nd5 Nd5 24.e4 Nf4 25.Qc4 h6 1–0. DEFFM – GuestNPLG, freechess.org, 2018.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Be2 Be7 12.0-0 0-0 13.d4 (13.Bf6 Bf6 14.d4 Bc6=) 13...Nd5 (13...Bc6 14.Bd3=+) 14.Ne5 (14.Bb2 Bc6=) 14...b4 (14...Bc6 15.Qb3=+) 15.Qc2 (15.Bd3 Nc6=) 15...Qa5 (15...Qc7 16.Qd2=+) 16.Nd2 (16.Nd7 Nd7 17.Bb2 N7b6=+) 16...Ba4 (16...Rc8 17.Ndc4 Qc7 18.Qb3=+) 17.Nb3 Qc7 18.Qc7 (18.Qa2 b5=+) 18...Nc7 19.Rc1 Nd5 (19...Rc8 20.Na5=+) 20.Nc5 Bc5 (20...Rc8 21.Bb2 Bc5 22.dc5–/+) 21.dc5 (21.Rc5 Nc6=+) 21...Rc8 22.Bb2 (better 22.e4 Nf6 23.f3–/+) 22...Na6 Attacks the isolani on c5 (better 22...b6–/+) 23.c6+= bc6? (better 23...Nb8!? 24.cb7 Rc1 25.Bc1 Nc3+=) 24.Ba6+– (24.Ba6 Ra8 25.Bb7+–) 1–0. DEFFM – GuestMJTV, freechess.org, 2018.

8.Bc4 ab5 9.ab5 cb5 10.Ra8 bc4 11.Be5 Ke7 (11...Bc8 12.Rb8 (worse 12.Bb8 Bd7+–) 12...Nd7 13.Qa4+–) 12.Bb8 (better 12.Rb8 Qb6 13.Na3+–) 12...Nd5 (12...Ke8 13.Nc3 Bd6 14.Bd6 Qa8+–) 13.Bd6! Kd6 14.Rd8 Nb4 15.0-0 (15.Qa4! Nd3 16.Ke2 Nc5 17.Qc4 b6 18.Qf4 Ke7+–) 15...Kc7 16.Rd7! Kd7 17.Ne5 Kd6 18.Nf7 (18.Nf7 Kd7 19.Nh8+–) 1–0. DEFFM – zoranshady, freechess.org, 2019.

8.bc6 Nc6 9.Bc4 Rc8 =.

8.Ne5? cb5 9.ab5!? A) 9...Qc7 10.Bc4 (10.f4 Bb5 11.Nc3 Bc6 12.Bc4 Bg2 13.Rg1 Bc6 14.h4) 10...Bd6 11.d4 Be5 12.de5 Qc4 13.ef6 gf6 14.Bf6; B) 9...Bb5 10.Nc3–/+ (10.Nc4 Nbd7 11.Nc3 Bc4 12.Bc4 b5 13.Be2 b4 14.Na4) 10...Nbd7 11.Nc4 Bc4 12.Bc4 Rc8 13.Be2 Bb4 14.0-0.

8.Ne5? cb5 9.Nd7 Kd7 10.ab5 Qc7 (10...Ne4 11.Nc3 Nd6 12.d3 Ke8 13.dc4 Nd7 14.Be2) 11.Ra4+= Qb6 12.Bc4 Ke8 13.Nc3 Nbd7 14.d4.

8.Ne5? cb5 9.Nd7 Qd7 10.ab5 (10.Bf6 gf6 11.ab5 Qb5 12.Nc3 Qc6 13.Qf3 Rg8 14.Qf6) 10...Qb5 11.Bf6 gf6 12.Ra4–/+ Bb4 13.Nc3 Bc3 14.dc3.

8.Ne5? cb5 9.Nd7 Nbd7–+10.ab5 (10.Qf3 Bb4 11.Bf6 gf6 12.Qb7 Nc5 13.Qc6 Ke7 14.ab5; 10.Be2 Nc5 11.ab5 ab5 12.Ra8 Qa8 13.0-0 Qa2 14.Bf6) 10...ab5 11.Nc3 (11.Ra8 Qa8 12.Qc2 Nd5–+ (12...b6 13.Nc3 Qc6 14.f3) 13.Nc3 Nb4 14.Qb1) 11...Ra5 12.Be2 (12.Ra5 Qa5 13.Qf3 (13.Qa1 Qa6 14.Be2) 13...b4 (13...Nc5 14.Qg3) 14.Qb7 bc3 15.Bc3 Qc5–+) 12...b4 13.Na2 (13.Bc4 bc3 14.Bc3) 13...b5 14.0-0 Bd6 15.Qb1 Qe7 (15...0-0 16.f4–+) 16.Nc1 Ra1 17.Qa1 0-0 18.Qa6 Rb8 19.Bf3 e5 20.g3 e4 21.Bg2 Ne5 22.Ne2 Nf3 23.Bf3 ef3 24.Nd4 Be5 25.Nc6 Qe6 26.Nb8 Qh3 27.Qc8 Qc8 28.Nd7 Qd7 29.Ra1 h5 30.Kf1 Bb2 31.Ra8 Kh7 32.Ra1 Ba1 33.d4 Qf5 34.e4 Qe4 35.h4 Qb1 0–1. Blasig,Volker – Huberty,Marc (2130), Luxembourg–chT, 1993.

8.Ne5? cb5 9.Nd7 Nfd7?! 10.ab5 Qg5 (10...Qc7 11.Na3 Ba3 12.Ra3 0-0 13.Qg4 Ne5 14.Qe4) 11.ba6 (11.Nc3 Nc5 12.h4 Qg6 13.h5 Qg5 14.g3) 11...Na6 (11...Ra6 12.Ra6 Na6 13.Qa4 Bb4 14.Na3) 12.Nc3+= Qc5 13.d4 Qb6 14.Qd2.

7.ab5 b6 8.c4 dc4 9.Bc4 Qc7 (9...a5 10.0-0+=) 10.Qb3 Be7 11.0-0 0-0 12.Rc1 Qb7 13.d3 Rc8 (13...a5 14.Be5+=) 14.Nbd2 (14.Bd4 Nd5+/–) 14...Be8 (14...a6 15.Qa2 a5 16.Qa4+/–) 15.Ne5 Nbd7 16.Nc6 Nc5 17.Ne7 Qe7 18.Qa3 Qd8 19.d4 (19.Bd4 Ncd7+/–) 19...Nce4 20.Ne4 Ne4 21.Bd3 Nd6 The isolani on b5 becomes a target (21...Qd5 22.Rc8 Rc8 23.Qb4+/–) 22.Qb4 Qd7? (better is 22...Qe7+/–) 23.Ba3+– Rd8 (23...Rc1 24.Rc1 (24.Bc1?! Nb5 25.Qb1 h6=) 24...a6 25.ba6+–) 24.Rc6 Qc6 (24...a6 25.Rd6 Qd6 26.Qd6 Rd6 27.Bd6+–) 25.bc6 Bc6 26.f3 Rab8 (26...Nf5 27.Rc1 Rac8 28.Bf5 ef5 29.Qe7+–) 27.Qc3 (27.Qc3 Rbc8 28.Bd6 Rd6 29.Ra7+–) 1–0. Bulcourf,Carlos (2215) – Chiappano,Marcelo, Siembra Villa Ballester op, 1996.

7.ab5 b6 8.c4 Bd6+–.

7.ab5 b6 8.Be2 Bd6+=.

7.ab5 b6 8.Ne5 Bd6 (8...Bc8 9.Bd3+–) 9.f4 (9.Ng4 Be7+–) 9...Be5 (9...Bc8 10.Bd3+–) 10.Be5 (10.fe5 Ne4 11.Qg4 0-0+–) 10...a6 (10...Bc8 11.Bd3+–) 11.Be2 (11.Bd3 a5+–) 11...a5+– 12.0-0 (12.Nc3 Bc8+–) 12...0-0 13.Qe1 Ne4 (13...Bc8 14.Nc3+–) 14.d3+– Nc5 15.Qg3 (15.Nc3 Bc8 16.f5 f6+–) 15...f6+– 16.Bd6 Rf7 (16...Bb5 17.Bf8 Qf8 18.Nc3+–) 17.Bh5 (17.Nc3 f5+–) 17...g6 18.Bc5 bc5 19.c4 Rg7 20.Bf3 Ra7 (20...Bc8+–) 21.Nc3 d4 (21...dc4 22.dc4 Be8 23.Qf2+–) 22.ed4 cd4 23.Ne4 f5 (23...Kh8 24.Qf2 e5 25.fe5 fe5 26.Qe1+–) 24.Nc5 Qb6 (24...Qe7 25.Nb3+–) 25.Na4 Qd6 26.Rfb1 (26.c5 Qf8 27.c6 Bc6 28.bc6 Rgc7+–) 26...Be8 (26...g5 27.c5 Qf4 28.Qf4 gf4 29.c6 Bc6 30.bc6+– (worse 30.Bc6 Nc6 31.bc6 Rac7 32.Rb8 Kf7+–)) 27.c5 White plans b6 27...Qf8 28.b6 (28.Qe1 Rge7+–) 28...Raf7 (28...Ra6 29.Qf2 Bc6 30.Qd4 Bf3 31.gf3+–) 29.Qe1 Bc6 (29...Re7 30.b7 g5 31.fg5 Rg5+–) 30.Bc6 Nc6 31.Qe6 Nb4 (31...Nd8 32.Qd5 Qe8 33.b7 Nb7 34.Rb7+–) 32.c6 Nd3 (32...Kh8 33.c7 Rc7 34.bc7 Rc7 35.Qe5 Qg7 36.Qa5 Qe7+–) 33.b7 Qb8 34.c7! Qc7 (34...Qc7 35.b8Q) 35.b8Q Qb8 1–0. DEFFM – GuestHBZD, freechess.org, 2019.

7.ab5 Bc5 8.Be2 0-0 9.0-0 Re8 10.c4 dc4 11.Bc4 Nd5 12.Nc3 Nc7 Attacks the isolani on b5 (12...Nc3 13.Bc3 Bd6 14.Qc2+=) 13.Qb3 b6 (13...Qe7 14.Ne4+–) 14.Ne5 Bc8 15.d4 Bd6 16.Nc6 Nc6 17.bc6 Qh4 18.g3 Qh6 19.Ne4 Be7 20.Rfc1 Rd8 21.Rd1 (better 21.Ba3 Ba3 22.Qa3+–) 21...Ba6?? (better 21...b5 22.Be2 Qg6+=) 22.Ba6+– (22.Ra6?! b5 23.Bb5 Rdb8+–) 22...Na6 23.Ra6 Rd5 (23...Rdc8 24.Qb5+–) 24.Ba3 Rh5 (24...Ba3 25.Qa3 e5 26.Ra7 Rc8+–) 25.Be7 Rh2 26.Kf1 (better 26.Bh4 Rh4 27.gh4 Qh4 28.Qc2+–) 26...Qh5 27.Bh4 (better 27.g4 Qg4 28.Ng3+–) 27...Qf3+– 28.Ke1 Qe4. GuestDHGV – GuestFFXY, freechess.org, 2017.

7.ab5 Bc5 8.Be2 0-0 9.0-0 Re8 10.c4 dc4 11.Bc4 Qe7 12.d4 Bb6 (12...Bd6 13.Ne5+=) 13.Ne5 Nd5 14.Qh5 f6 (better 14...Rc8!?+/-) 15.Ba3+- Qf8?? (better 15...g6 16.Qf3 Qg7 17.Bd5 ed5 18.Nd7 Qd7+-) 16.Bf8 (16.Bf8 fe5 17.Bc5+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

7.ab5 Bc5 8.Be2 a5 9.0-0+– Qb6 (9...0-0 10.c4+–) 10.c4 (better 10.Nc3!? Bd6 11.Na4+–) 10...dc4+= 11.Bc4 Bb5 12.Bb5 Qb5 13.Nc3 Qd7 14.d4 (14.Na4 Ba7+=) 14...Be7 15.Ne5 Qc7 16.Qa4 Nc6 17.Nb5 Qb6 18.Ba3 Ba3? (better 18...Qd8!?+=) 19.Nc4+– (19.Ra3?! 0-0 20.Nc4 Qd8=; 19.Na3?! Qb4 20.Qc2 Ne5 21.de5 Nd7=) 19...Qd8 20.Qa3 (20.Ra3?! 0-0+=; worse 20.Nca3 0-0=+; worse 20.Nba3 0-0=) 20...Nb4 (20...Qe7 21.Nbd6 Kf8 22.Rfb1+–) 21.Nbd6 (21.Nbd6 Kf8 22.Nb7+–) 1–0. GuestTHLW – GuestKJFH, freechess.org, 2019.

7.ab5 Be7 8.c4 dc4 9.Bc4 Qc7 10.Qb3 0-0 11.0-0 b6 12.Rc1 Qb7 13.d4 Nd5 (13...Rc8 14.Ba3 Ba3 15.Na3+=) 14.Ne5 Be8? (14...Rd8 15.Ba3 Bf6 16.Bd6+–) 15.e4 (better 15.Bd5!? ed5 16.Nc3+–) 15...Nf6 (15...Nb4 16.Qf3+–) 16.d5 ed5 17.ed5 Bd6 18.Nc6 Nbd7 (18...Ne4 19.Qe3 f5 20.Nd8+–) 19.Qh3 Ne4 (19...h6!?+–) 20.Bg7!+– Kg7 21.Qg4 Kh8 22.Qe4 Nc5 23.Qd4 (23.Qh4 f6+–) 23...f6 24.g3 (24.Nc3 Bg6+–) 24...Bc6 (24...Bg6 25.Nc3+–) 25.dc6 Qe7 (25...Qc7 26.Nc3+–) 26.Nc3 Be5 27.Qe3 (27.Qg4 f5 28.Qf3 Qg5+–) 27...Rae8 (27...Qg7 28.Ra2+–) 28.Qh6 Qg7 (28...a5+–) 29.Qg7 Kg7 30.Ra7 Rf7 (30...Kh6+–) 31.Bf7 (31.Bf7 Rc8 32.Bc4 Kh6 33.Nd5+–) 1–0. DEFFM – guestkuku, freechess.org, 2018.

7.ab5 Be7 8.Bd3 0-0 9.0-0 (9.Bd4 a6+=) 9...a6 (9...a5 10.Ne5=) 10.Ne5 a5 (10...Qc7 11.Bd4=) 11.c4 (11.Ra4 Qc7+=) 11...dc4 (11...Qc7 12.Qa4+=) 12.Bc4 b6 (12...Ne4 13.Qg4 f5 14.Qf3+=) 13.Qf3 Ra7 14.Rc1 Rc7 15.d4 Ne8 (15...Bb4 16.Nc3+–) 16.Nc3 White plans d5 16...Nd6 (16...Bb4 17.Bd3+–) 17.Bd3 Be8 (17...Qe8 18.Ba3+–) 18.Qh3 (18.Ba3 h6+–) 18...g6 (18...f5 19.Ba3+–) 19.d5 Bf6 (19...Bd7 20.Qf3+–) 20.Nc6 Nc6 (20...Bc6 21.dc6 (worse 21.bc6 ed5 22.Rab1 Bc3 23.Rc3 Ne4=+) 21...Be5 22.f4+–) 21.dc6+– (worse 21.bc6 ed5 22.Qg3 Bc6–/+) 21...Bg7 (21...Be5 22.Ra2+–) 22.Ba3 (22.Qg3 f5+–) 22...f5 (22...Be5 23.f4 Bf6 24.Ra2+–) 23.Qg3 e5 (23...f4 24.ef4 Nf5 25.Qh3+–) 24.Nd5 Bf7 25.Nb6 (25.Nc7 Qc7 26.e4 fe4 27.Bd6 Qd6 28.Be4 Bh6+–) 25...Re8 Black intends e4 (25...f4 26.ef4 e4 27.Nd7+–) 26.Rd1 (better 26.Rab1 Nc8 27.Nd7+–) 26...Re6? (26...f4 27.Qf3 e4 28.Be4 fe3 29.Bd6 ef2 30.Kf1 Re4 31.Bc7 Qc7+–) 27.Bc4 e4 (27...f4 28.Qh3 Rf6 29.Bf7 Rcf7+–) 28.Be6 Ba1 (28...Be6 29.Qd6 Qd6 30.Bd6+–) 29.Rd6 (better 29.Qd6 Qd6 30.Bf7 Rf7 31.Bd6 Bf6+–) 29...Qe7 (29...Qe8 30.Rd7 Be6 31.Qc7 Bf6+–) 30.Nd5 Qe6 31.Re6 Be6 1–0. DEFFM – GuestDFXJ, freechess.org, 2018.

7.ab5 Be7 8.Bd3 0-0 9.Ne5 h6 10.Nd7 (better 10.Bd4!?+=) 10...Nbd7= 11.0-0 b6 (11...Bd6 12.Nc3=) 12.Ra4 Nc5 13.Rh4 Nd3 14.cd3 Nh7 (14...a5 15.ba6 Ra6 16.Rh3=+) 15.Rh3 Ng5 (better 15...Qd7!? 16.Qb3 Rfc8=) 16.Rg3+- Bf6 Black plans d4 17.Nc3 d4 18.ed4 Bd4 19.Qh5 (19.Ba3 Re8+=) 19...Qf6 (better 19...Be5!? 20.Re3 Bf4-/+) 20.h4 Nh7 (20...Qe5!? 21.hg5 Qg3=) 21.Ne4+- Qe5?? (better 21...Bf2 22.Rf2 Qb2 23.Qh6 Kh8+=) 22.Qh6 (better 22.Qe5 Be5 23.Be5+-) 22...Bb2-+ 23.f4 (23.Qe3 Rfd8-+) 23...Qd4 (better 23...Bd4 24.Kh1 Qf5 25.Rg5 Ng5 26.Qg5-+) 24.Kh2 g6 (better 24...Rad8!? 25.Nc3 Rd5 26.Nd5 Qd5 27.f5-+) 25.h5 Qg7 26.Qg7 Kg7 27.hg6 fg6 28.Nd6 (28.Re3 Nf6 29.Kg3 Nd5-+) 28...Nf6 (28...Be5 29.fe5 Rf1 30.d4-+) 29.Re1 (29.Rgf3 Nd5 30.Kh3 Bd4-+) 29...Rh8 (29...Nh5 30.Rf3 Nf4 31.Kg3-+) 30.Kg1 (30.Rh3 Nd5 31.g3 Kf6-+) 30...Bd4 31.Kf1 Rh1 32.Ke2 Re1 33.Ke1 Rh8 (33...Nd5 34.f5 Ne7 35.Rg4-+) 34.Ke2 (34.f5 Rd8 (worse 34...ef5 35.Nf5 Kf7 36.Nd4+=) 35.Rg6 Kf8-+) 34...Nd5 35.Kf3 (35.Rg4 Rf8-+) 35...Rf8 36.Rg4 Nb4 (36...Be5! 37.Ne4-+) 37.Ne4?? (better 37.f5 Bf6 38.Rb4-+) 37...Nd3 38.Ng5 Ne5 (38...Nc5 39.Rh4 e5 40.g3-+) 39.Ke4 Ng4 40.Ne6 Kf7 41.Nd4 (41.Nf8 Kf8 42.Kd4-+) 41...Nf6 42.Kf3 Rd8 43.Ke3 Rd4! 44.Kd4 Nh5 (better 44...Ke6!? 45.Ke3-+) 45.Ke5 Ke7 46.g4 White intends f5 46...Ng3 47.d4 (47.f5 gf5 48.gf5 Ne2-+) 47...Ne2 48.d5 (48.f5 gf5 49.gf5 Nc3 50.f6 Ke8-+) 48...Nc3 49.d6 (49.f5 gf5 50.g5 Nb5 51.Kf5 a5-+) 49...Kd7 50.f5 gf5 51.gf5 (51.g5 Nb5 52.g6 Nd6 53.g7 Nf7 54.Kf5 Nh6 55.Kg6-+) 51...Nb5 52.f6 Nd6 53.Kd5 a5 54.Kd4 Ke6 0-1. hamidrezaderakhshan – VladKHR, lichess.org, 2020.

8.ba6 ba6= 9.Ne5 Bc8 10.Bb5+= White gets kings attack 10...Nfd7 (10...Bd7 11.Nd7 Nfd7 12.Qg4+=) 11.Qf3 The mate threat is Qxf7 11...Qe7 (11...Qf6 12.Qf6 gf6 13.Nd7 Bd7 14.Bf6+=) 12.0-0 (12.Ba4 Bb7+/–) 12...Bb7 (12...Qf6 13.Qh5+/–) 13.Ba4 Qf6? (better is 13...Rg8+/–) 14.Nd7+– Qf3 15.Ne5 (15.gf3 Nd7 16.Bd4 Bd6+=; 15.Nf8?! Bc6 16.gf3 Rf8+–) 15...Bc6 16.Nf3 Ba4 17.Ra4 Nc6 (17...Nd7 18.Bd4+–) 18.c4 f6 (18...dc4 19.Rc4 Na5 20.Rc2+–) 19.cd5 ed5 20.Nc3 Rb8 (20...Ne7 21.Rfa1 Rb8 22.Ba3+–) 21.Rb1 (21.Ra6 Nb4 22.Ra4 Nc6+–) 21...Nb4 (21...a5 22.Nd5 Kd7 23.e4+–) 22.Bc1 (22.Bc1 Nc6 23.Ra6 Rb1 24.Nb1+–; 22.Ba3 Nc6+–) 1–0. mtre – daxx, internet, 2002.

8.c4 a5 9.Be2 b6 10.0-0 Qc7 (10...dc4 11.Bc4 Bd6 12.Qa4+=) 11.d4 (11.Bf6 gf6 12.cd5 ed5+/-) 11...Ne4 12.Nbd2 (12.Qa4 dc4 13.Bc4 Bd6+/-) 12...Nd2+= 13.Nd2 (worse 13.Qd2 dc4 14.Rfc1 Bb5=+) 13...Bb4 (13...Bd6 14.f4+=) 14.Rc1+/- dc4 (14...Qa7 15.Bf3 0-0 16.Bc3 Bc3 17.Rc3+/-) 15.Nc4 Qb7?? (better 15...Qd8!?+/-) 16.Bc3 (better 16.Bf3 Qa7 17.Be4+-) 16...Bc3?? (16...Qc7 17.Bb4 ab4+-) 17.Nd6 Ke7 18.Nb7 (18.Nb7 Bb4 19.Rc7+-) 1-0. BeepBeepImAJeep (2735) - Jules1976, lichess.org, 2015.

8.c4 ab5 9.Ra8 (9.Ra8 Bd6 10.c5+–) 1–0. GuestFDVT – GuestSGBJ, freechess.org, 2019.

8.c4 dc4 9.Bc4 Be7 10.0-0 0-0 11.Nc3 Bc8 12.d4+= Nbd7 13.Qc2 Nb6 14.Bd3 Bd7 (14...ab5 15.Ra8 Na8 16.Nb5+=) 15.Ne5 (15.ba6 ba6 16.Ba6 Nbd5+–) 15...g6 (15...Bb5!? 16.Nb5 ab5 17.Ra8 Na8 18.Bb5 Nb6+=) 16.Nd7 (16.ba6 ba6 17.Ba6 Nfd5+–) 16...Qd7+– 17.ba6 ba6 18.Ra6 Rfb8 19.Ra8 Ra8 20.Ne4 Nbd5 21.Nc5 Qe8 (21...Qc7 22.Rc1+–) 22.Ra1 (22.Qe2 Bd6+–) 22...Nb4 23.Qe2 Nd3 24.Qd3 Rb8 25.Bc3 Nd5 26.Qc4 (26.Bd2 Bc5 27.dc5 Qc6+–) 26...Rc8 (26...Qb5 27.Qb5 Rb5 28.Na4+=) 27.e4 (27.Bb2 Nf6+–) 27...Nb6 (27...Nc3 28.Qc3 e5 29.Qf3=) 28.Qb4 (28.Qd3!?+–) 28...Nd7+= 29.Ra5?? (29.Qb1 Nc5 30.dc5 Bc5 31.Qd3=) 29...Rb8?? (better 29...Nc5 30.Rc5 Bc5 31.dc5 Rb8–+) 30.Rb5+– Ra8 31.g3 Nb8 (31...Rc8 32.Bb2+–) 32.Qb3 Nc6 33.d5 ed5 34.ed5 Na7 (34...Na7 35.Ra5 Bc5 36.Rc5 Rb8+–). GuestRDMJ – GuestMBLT, freechess.org, 2017.

8.Be5 Be7+=.

8.Ne5 a5 9.c4 Bd6 10.cd5 (10.d4 Ne4 11.Nc3 Bb4+=) 10...ed5 (10...Nd5? 11.Qg4 Rg8 12.Na3+–) 11.Bd3 (11.d4 Bf5=) 11...0-0 (11...Be6 12.0-0 Nbd7 13.Nd7 Nd7 14.Qc2= (14.Bg7? Rg8–+)) 12.0-0+= Re8 (12...Qe8 13.Nf3 Bb5 14.Bb5 Qb5 15.Bf6 gf6 16.Nc3+=) 13.f4+– b6 (13...Be6 14.Bd4+–) 14.Bd4 Bc5 15.Bc5 bc5 16.Qf3 Be6 Black prepares d4 (16...Bc8!?+–) 17.Nc3+– Qc7 18.Bc2 (better 18.Rfc1!?+–) 18...Nbd7+– 19.Nc6 (19.d4 Rac8 20.Rfc1 g6+–) 19...d4+= 20.ed4 (20.Ne4 Bd5 21.Nf6 Nf6=) 20...cd4= 21.Nd4 Bc4? (better 21...Qb6 22.Qd3 Rac8=) 22.Qc6+– Qc6 23.bc6 (23.Nc6?! Bf1 24.Kf1 Nb6=) 23...Bf1 24.cd7 (24.Rf1?! Nb6=; 24.Kf1?! Nb6=) 24...Nd7 (24...Red8 25.Kf1 Rd7 26.Ra4+–) 25.Kf1 Nf6 26.Nb3 (26.Nc6 Ra6 27.Ne5 g6+–) 26...Rec8 (26...Reb8!?+–) 27.Ra5 Ra5 28.Na5 Ra8 (28...Nd5 29.Nd5 Rc2 30.Ke2+–) 29.Nc6 Kf8 30.Ke2 g6 31.Ba4 (31.Ne5 Ra1+–) 31...Nd5 32.Nd5 Ra4 33.d4 h5 34.Kd3 (better 34.Kf3+–) 34...Kg7? (better 34...Ra2 35.Ne3 Rf2+–) 35.Nc3 Ra3 36.d5 Kf8 (36...Ra6+–) 37.d6 Ke8 38.Ne5 (better 38.Kc4 Rc3 39.Kc3 Kd7 40.Ne5 Kd6 41.Nf7 Ke6+–) 38...Kd8 (38...f6 39.Nc4 Rb3+–) 39.Nf7 Kd7 40.Ne5 Kd6 (40...Kd8+–) 41.Nc4 (41.Nc4 Ke6 42.Na3+–) 1–0. DEFFM – GuestXYBT, freechess.org, 2019.

8.c4 dc4 9.Bc4 Bb5 10.Bd4 Qc6?? (better 10...Bc5 11.Bb5 Qb5=+) 11.Ne5+- Qg2 12.Bb5 Ke7?? (better 12...Nc6 13.Rf1 Bd6+-) 13.Bc5 Kd8 14.Nf7 Kc8 15.Rf1 Rg8 16.Bf8 Rf8 17.Qc1 Nc6 18.Ne5 Kc7 19.Bc6 bc6 20.f3 Rac8 (20...Rfc8 21.Qc6 Kd8 22.Qd6 Ke8 23.Qe6 Kd8 24.Nf7 Kc7+-) 21.Ra7 Kd8 (21...Kb8 22.Qc5 Qf2 23.Rf2 Rce8 24.Qb6 Kc8 25.Qc7) 22.Nc6 Rc6 23.Qc6 (23.Qc6 Qf2 24.Rf2 Ne4 25.Qd7) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

8.c4 dc4 9.Bf6 gf6 10.Nc3 Bb5 (10...Bd6 11.Bc4 Rg8 12.0-0+=) 11.Rb1+= a6 12.Bc4 Bg7 (12...Qc6 13.Bb5 ab5 14.Nb5+=) 13.Bb5 (13.Nb5 ab5 14.Bb5 Kd8+–) 13...ab5+= 14.Rb5 Qc6 15.0-0 0-0 16.Qb3 Na6 17.Nd4 Qd6 (17...Qc8 18.Rb1+– (18.Rb7 Nc5–+)) 18.Ne4 (worse 18.Rb7 Nc5 19.Rb6 Qd4 20.ed4 Nb3 21.Rb3 Rfd8+=) 18...Qe7 (18...Qd8 19.Rb7 f5 20.Nc6+–) 19.Rb7+– Qd8? (better 19...Qe8+–) 20.Nc6 Qe8 21.Qb6 f5 (21...e5+–) 22.Nd6 (22.Nd6 Qc6 23.Qc6+–) 1–0. GuestKRQW – kalitt, freechess.org, 2018.

8.c4 Ne4? 9.Ne5 (better 9.Nc3+–) 9...f6? (better 9...dc4 10.Nc4 Qc5+–) 10.Qh5+– g6 (10...Ke7 11.Ba3 (11.Nd7?! Nd7 12.cd5 f5+–) 11...Nc5 12.d4+–) 11.Ng6! hg6 12.Qg6 (better 12.Qh8 Kf7 13.Nc3+–) 12...Kd8?? (better 12...Ke7=+) 13.Bf6+– Nf6 14.Qf6 Be7 15.Qh8 Kc7 (15...Be8 16.Nc3 dc4 17.Bc4 Nd7+–) 16.cd5 ed5 17.Nc3 Bf6 (17...Kd6+–) 18.Nd5 (18.Nd5 Kd6 19.Qf6 Be6 20.Qe7 Kd5 21.Ra4 a5 22.f4 Qe3 23.de3 Nc6 24.e4) 1–0. guest308 – guest766, chessclub.com, 2019.

8.Bd3 Bb5 9.Bd4 Qc6 10.Ne5 Qc7N 11.Bb5 Nfd7 (11...Nc6 12.Ra6! Bd6 13.Bc6 bc6 14.Rc6 Qe7+–) 12.Qh5 g6 (12...Nc6 13.Qf7 Kd8 14.Nf3+–) 13.Qf3 Kd8 (13...f5 14.Nd7 Nd7 15.Bh8+–) 14.Nf7 (14.Nf7 Kc8 15.Qh3+–) 1–0. GuestFVNG – GuestGPHJ, freechess.org, 2020.

8.Bd3 Be7 9.Bd4 Bc5 10.0-0 (better 10.Bc5!? Qc5 11.Nc3+=) 10...Bd4=+ (10...Bb5? 11.Bc5 Qc5 12.Ra5+–) 11.Nd4 e5 12.Nb3 Bb5 13.Bb5 Qb5 14.f4 (14.Nc3 Qc6=+) 14...ef4 (14...e4 15.Nc3 Qd7 16.Qb1–/+) 15.Nc3 Qb6 (15...Qd7 16.Rf4 Nc6 17.Nc5=+) 16.Rf4= 0-0 17.Qf3 Exerts pressure on the isolated pawn 17...Nc6 (better 17...Rd8!?=) 18.Rf6+– (worse 18.Nd5 Nd5 19.Qd5 Qc7=) 18...gf6 19.Nd5 (worse 19.Qd5 Nb4 20.Qf3 Nc2=+) 19...Qd8 20.Nf6 Kh8?? (better 20...Kg7 21.Rf1 Ne5+–) 21.Qf5+– Kg7 22.Qg5 (22.Nh7?! Rh8 23.Ng5 Qf6+–) 22...Kh8 23.Qh6 (23.Qh6 Qf6 24.Qf6 Kg8 25.Ra4+–) 1–0. DEFFM – GuestQXWM, freechess.org, 2018.

8.Bd4 Bc5 9.Bf6 gf6 10.Nc3 Ke7 (10...Bb4 11.Na4 Qc7 12.Qb1+=) 11.Be2 (11.Bd3 Bb4 12.Na4 Qc7+–) 11...Qc7 (11...Rg8 12.0-0+–) 12.0-0 Bd6 (12...Bb4 13.Na4 h6 14.Qb1+–) 13.g3 (13.e4 d4 14.Nd4 Bh2 15.Kh1 Be5+–) 13...h5 (13...Bb4 14.Na4 a6 15.Qb1+–) 14.e4 (14.Ra4 Qb6+–) 14...h4+– 15.Nh4 (15.ed5?! hg3 16.hg3 Bg3+=) 15...d4? (15...Rh4 16.gh4 Bh2 17.Kg2+–) 16.Na4?? (better 16.Nf5! Kf8 17.Nd4+–) 16...Rh4+– 17.gh4 Bh2 18.Kh1 (better 18.Kg2!? Nc6 19.bc6 Rg8 20.Kh3 Bc6 21.f4 Bf4 22.Rg1 Rg1 23.Qg1+–) 18...Qf4= 19.Ra3 Qh4 20.Kg2 Nc6?? (better 20...d3 21.Rd3 Bb5=) 21.Rh3+– (21.bc6?? Rg8 22.Bg4 Rg4 23.Qg4 Qg4 24.Kh2 Bc6–+) 21...Rg8 (21...Qe4 22.Kh2 Nb4 23.Rh5 Bb5 24.Bb5= (24.Rb5 Qh4 25.Kg2 Rg8 26.Bg4 Rg4 27.Qg4 Qg4 28.Kh2 Nd5 29.Rb7 Kd6–+)) 22.Kh2 Qf4 (22...Qe4 23.Rg1 Qe5 24.Rgg3+–) 23.Kh1 e5 (23...Ne5 24.f3 a6 25.Qc1 ab5 26.Qa3 Kd8 27.Nc5 Qd2 28.Rh2+–) 24.Rh2 (24.bc6 Bh3 25.Rg1 Rh8–+) 24...Nd8 25.d3 (25.d3 Bb5 26.Qa1+–) 1–0. GuestMBFD – GuestSPJN, freechess.org, 2019.

9.Ra2 A) 9...e5 10.Nb1 (10.Na4 Qc7 11.Be5 Be5 12.Ne5 Qe5 13.Nb6 ab6 14.Ra8 0-0=) 10...Bg4 11.h3 Bf3 12.Qf3 0-0 13.Nc3 Rc8 14.g4 h6+=; B) 9...a6 10.Be2 (10.Bd3 0-0 11.Na4 Qd8 12.Bf6 Qf6 13.Nb6 Ra7 14.0-0 Bc7=) 10...0-0 11.Na4 Qc7 12.Bf6 gf6 13.Nc3 Bb4 14.ba6 Bc3=.

9.Na4 Qc7 10.Bd3 a6 11.Bf6 gf6 12.ba6 ba6 13.Nc3 Bc6 14.0-0 f5 =.

9.Na4 Qc7 10.Bd4 e5 11.Ba7 Bf5 12.c3 0-0 13.Be2 Qe7 14.Bb8 Rfb8 =.

9.Na4 Qc7 10.Bf6 gf6 11.Nc3 Rg8 12.Nd4 Rg7 13.Qh5 Kf8 14.Qh6 f5 15.Bd3 Bb4? (15...Kg8 16.0-0=) 16.Nce2 (16.b6 Qd8 (16...Qb6?? 17.Nf5 ef5 18.Qb6 ab6 19.Ra8+–) 17.Ra7 Nc6 18.Ra8 Qa8+=) 16...Bc5? (16...Kg8 17.Nf4 Qd8 18.Rg1+=) 17.Nf3?? (better is 17.Nf4 Bd4 18.ed4+–) 17...e5= 18.Ng5 Be7 (18...Kg8 19.f4 Qd6 20.Qd6 Bd6+=) 19.b6?? (better is 19.Nh7 Kg8 20.Nf6 Bf6 21.Qf6=) 19...Qd6?? (19...Qc6 20.Nh7 Kg8 21.Nf6 Bf6 22.Ra7 Rh7 23.Qh7 Kh7 24.Ra8 Qb6–+) 20.Nh7+– Kg8 21.Qd6 Bd6 22.ba7 (better is 22.Nf6 Kf8 23.Ra7+–) 22...Kh7= 23.0-0 (23.Ng3 e4 24.Bf1–+) 23...e4 24.ab8Q Rb8 25.Be4 fe4 26.g3 Bb5 27.Rfe1 Be2 28.Re2 b5 29.Ree1 b4 30.Ra5 Rg5 31.Rb1 Rc8 32.Rb2 Rc5 33.Rc5 Bc5 34.c3 bc3 35.dc3 Kg6 36.Rb5 Be7 37.Rb7 Bf6 38.Rc7 Kg7 39.c4 d4 40.c5?? d3–+ 41.Kf1 Rf5 42.c6 d2 43.Rd7 Rc5 44.Rd2 Rc6 45.Kg2 ½–½. Bot,Florian – Le Port,Luc, Montigny le Bretonneux–C final 7th, 2008.

9.Na4 Qd8 10.Bd4 (10.Bf6 gf6 11.Nc3 Bb4 12.Bd3 Bc3 13.dc3 Qc7 14.0-0 Qc3=) 10...Bc7 11.Be2 a6 12.Nc5 Qc8 13.ba6 ba6 14.Qb1 Bd6 +=.

9.Qe2 A) 9...a6 10.Qd3 (10.e4 de4 11.Ne4 Bb5 12.Qb5 ab5 13.Nd6 Qd6 14.Ra8 0-0=) 10...0-0 11.Be2 Rc8 12.0-0 Rc4 13.Ba3 Ba3 14.Ra3 Qd6+=; B) 9...e5 10.e4 (10.Qd3 Be6 11.Ng5 e4 12.Na4 Qd8 13.Ne6 fe6 14.Qb3 0-0+=) 10...d4 11.Na4 Qc7 12.c3 dc3 13.Nc3 0-0 14.Qc4 Qd8=.

9.Be2 e5 (9...0-0 10.Na4 (10.0-0 Rc8 11.Na4 Qc7 12.Bd4 e5 13.Ne5 Be5 14.Be5 Qe5=) 10...Qc7 11.Bf6 gf6 12.Qb1 Rc8 13.0-0 e5 14.Nc3 Qc5+=; 9...Qc7 10.Ba3 (10.0-0 0-0 11.Ba3 e5 12.Bd6 Qd6 13.d4 e4 14.Ne5 Rc8=) 10...Ne4 11.Bd6 Qd6 12.Ra4 Nc3 13.dc3 Qc7 14.c4 dc4+=) 10.0-0 (10.Na4 Qc7 11.Be5 Be5 12.Ne5 Qe5+= 13.Nb6 ab6 14.Ra8 0-0+=; 10.Ne5 Be5 11.Na4 Qc7 12.Be5 Qe5 13.Nb6 ab6 14.Ra8 0-0+=) 10...Be6 (10...e4!? 11.Nd4 a6= 12.f4 0-0 13.g4 h6 14.g5 hg5+=) 11.Na4+= Qc7 12.b6 (12.Be5 Be5 13.Ne5 Qe5 14.Nb6 ab6+=) 12...e4?? (12...ab6 13.Nc3 Ra1 14.Qa1 e4+/– (14...Bb4 15.Qa4 Nc6+/–)) 13.bc7+– (13.bc7 Bc7 14.Nd4+–) 1–0. pumpkin – xina (2255), net–chess.com, 2014.

8.c4 dc4 9.Bc4 0-0 10.0-0 Qc7 11.Qb3 e5? (better 11...Rc8 12.d3 Qd8+=) 12.b6!+– Qd8 (12...ab6 13.Ra8 Pinning (13.Ra8 Deflection); 12...Qb6 13.Qb6 Combination) 13.Be5 (13.Ra7?! Nc6 14.Ra8 Qa8+–) 13...Be5 (13...Ne8 14.Ra7 Nc6 15.Ra8 Qa8 16.Bd6 Nd6 17.Bd5+–) 14.Ne5 Ne4?? (14...Na6 15.Nf7 Qb6 16.Qb6 ab6 17.Ne5 Kh8+–) 15.Ra7 Ra7 (15...Nc5 16.Nf7 (16.Ra8?! Nb3 17.Bb3 Be6 18.Be6 fe6+–) 16...Qf6 17.Qc3+– (17.Ra8?! Nb3 18.Bb3 Qb6+–)) 16.ba7 (better 16.Nf7 Rf7 17.ba7 Nc6 18.Bf7 Kh8 19.Qb7 Nd6 20.Qd7 Qd7 21.a8Q Nd8+–) 16...Nc6 17.Nf7 Qh4 (17...Qa8 18.Ne5 Kh8 19.Nd7 Rd8+–) 18.Ng5 Kh8 19.Qa3 Rf2 20.Qf8! Rf8 (20...Rf8 21.Rf8) 21.Rf8 1–0. DEFFM – GuestZKXC, freechess.org, 2018.

8.c4 dc4 9.Bc4 Qb6 10.Nc3 (10.Bd4 Bc5+=) 10...Bb4 (better 10...0-0!?=) 11.Qb3 Bc3 12.Bc3 0-0 (12...a6 13.Bd4 Qc7 14.0-0+–) 13.0-0 (13.Ba5 Qc5 14.Bb4 Qc8 15.Bf8 Qf8+–) 13...Ne4 14.Ba5 Qd6 15.Bb4 Nc5? (15...Qb6 16.Bf8 Kf8 17.d4+–) 16.Qa3 (16.Qc2 Rc8 17.d4 b6+–) 16...b6 (16...Rc8 17.d4 Bb5 18.Bc5+– (18.dc5?! Qd7 19.Rfd1 Qe8+–)) 17.d4 a5 (17...Rc8 18.Rfd1 Qc7 19.dc5 bc5 20.Bc3+–) 18.ba6 (18.Bc5?! bc5 19.dc5 Qe7+–) 18...Qc6 (18...Qc7 19.dc5 (19.Bc5?! bc5 20.Qc5 Rc8+–) 19...b5 20.c6 Ra6 21.Qc3 (21.Bf8?! Ra3 22.Ba3 bc4 23.cd7 Nd7+–; 21.cd7?! Ra3 22.Ba3 bc4 23.Bf8 Kf8+–) 21...Rc6 22.Bf8+–) 19.a7 (worse 19.Bc5 bc5 20.a7 cd4+–) 19...Nb7 (19...Qb7 20.dc5 (worse 20.ab8R Rfb8 21.Qb2 Ne4+–; worse 20.ab8Q Rfb8 21.Qb2 Ne4+–; 20.ab8N?! Ra3 21.Ba3 Rb8 22.dc5 bc5+–; 20.ab8B?! Ra3 21.Ba3 Rb8 22.dc5 bc5+–) 20...b5 21.c6 Nc6 22.Bf8 Ra7 23.Qb2 Kf8 24.Qb5 Qb5 25.Bb5+–) 20.Bf8 Qc4 21.Ne5 Qc8 22.Qe7 Qf8 (22...Be8 23.Rac1 Nc6 24.Rc6 Qd8 25.Qb7 Kf8+–) 23.Qf8 (23.Nd7?! Qe7 24.ab8R Rb8 25.Nb8 h6+–; 23.ab8R Rb8 24.Qf8 Rf8 25.Nd7 Rd8 26.Nb6 h6+–; 23.ab8Q Rb8 (23...Qb8?? 24.Nd7 Qd8 25.Ra8 Qa8 26.Nb6+–) 24.Qf8 Rf8 25.Nd7 Rd8 26.Nb6 h6+–; 23.ab8B?! Qe7 24.Ra8 Be8+–) 23...Kf8 24.ab8Q Rb8 1–0. GuestQCSQ – GuestDTYC, freechess.org, 2019.

8.Be2 a6 9.0-0 0-0 10.Bd4 (10.Nc3 Be8+=) 10...Be8 11.c4 dc4 12.Bc4 Nbd7 13.ba6 e5 (13...ba6!? 14.d3 Qc7+=) 14.ab7+– Rb8 15.Bc3 Rb7 (15...e4 16.Nd4 Rb7 17.Na3+–) 16.d3+– Qc7 (16...e4 17.de4 Ne4 18.Bd4+–) 17.Nbd2 Nc5 (17...Nb6 18.Ba5 Qb8 19.Ba6+–) 18.Ra8 (better 18.Be5 Be5 19.Ne5 Qe5 20.d4+–) 18...Nd3?? (better 18...Bc6 19.Rf8 Kf8+=) 19.Ba5+– (19.Bd3?! Qc3 20.Ne4 Ne4 21.Be4 Rb6+=) 19...Qe7 (19...Qc5 20.Bd3 Bb5 21.Rf8 Bf8 22.Bb5 Rb5+–) 20.Bd8 Qd7 21.Bd3 Bb8 22.Bf6 gf6 (22...Qd3 23.Be5 Bc6+–) 23.Ne4 Qe7 (23...Qc6 24.Nh4 f5 25.Nf5+–) 24.Ra6 1–0. GuestYZYP – didiboy, freechess.org, 2020.

8.Be2 h6 9.0-0 Qc7 10.c4 (10.Bd4 a6 11.Nc3+=) 10...0-0? (better 10...dc4!? 11.Qa4 a6 12.Bc4 0-0+=) 11.Bf6+/- gf6 12.cd5 ed5 (12...Rc8 13.de6 fe6 14.Qa4+/-) 13.Nc3 (13.Qb3 Be6 14.b6 Qd7+-) 13...a6 (13...Be6!?+/-) 14.Nd5+- Qc5? (better 14...Qd8+-) 15.Nf6 Kg7 16.Ne4 (16.Nd7 Nd7 17.ba6 ba6 18.Ba6 Qh5+-) 16...Qc7 (16...Qd5 17.Qc2 Be7 18.Bc4+-) 17.Qb1 f5 (17...Be7 18.ba6 Na6 19.Rc1+-) 18.Qb2 Kh7 19.Nf6 Rf6 (19...Kg6 20.Nh4 Kf7 21.Bh5 Ke6+-) 20.Qf6 Be5 (20...Be8 21.Bd3 Kg8+-) 21.Ne5 (21.Ne5 Be8 22.Rfc1+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

8.Be5 Be5 9.Ne5 =.

7.a5 Qc7 8.Be5 Bd6?? (better 8...Qd8=) 9.b6!+– ab6? (9...Qc8 10.Bd6 ab6+–) 10.ab6 Ra1 (10...Be5 11.Ra8 Qb6 12.Ne5+–) 11.bc7 Be5 1–0. DEFFM – GuestDYPF, freechess.org, 2018.

7.a5 Qd8 8.a6!? b6 9.Nc3=.

7.a5 Qd8 8.Nc3=.

7.a5 Qd8 8.Ne5 cb5=+ 9.Be2 a6 10.Bh5 g6 11.Bf3 Bg7 12.0-0 0-0 13.d3 Nc6 14.Nc6 bc6 15.e4 de4 16.de4 Qc7 17.Re1 Rad8 18.c4 b4 19.Qb3 c5 20.e5 Ne8 21.Nd2 Bc6 22.Qe3 Bf3 23.Nf3 Bh8 24.Ng5 Bg7 25.f4 (25.Nf3 Qe7=+) 25...Qe7 (25...Bh6 26.Ne4–/+) 26.Ne4 Rc8 27.Rad1 Qc7 28.Ra1 Qc6 29.Red1 Nc7 (better 29...h6!?=+) 30.Rd6+– Qb7 (30...Qa8!?+–) 31.Nc5+– Qa7 (31...Qa8 32.Bd4+–) 32.Bd4 Qa8 33.Rb1 Rb8 (33...Rfd8 34.Rb4 Bf8 35.Rbb6+–) 34.Nd7 b3?! (34...Rb7 35.Nf8 Bf8 36.Rb6+–) 35.Nb8 Rb8 36.Rb6 Rd8 37.R1b3 Bf8 38.Rd3 Rc8 (38...Qc8 39.Qe4+–) 39.Kf2 Ne8 40.Qf3 Qf3 41.Kf3 (worse 41.gf3 Rc4 42.Rb8 Rc2 43.Ke1 Nc7+–; 41.Rf3?! Rc4 42.Be3 Nc7+–) 41...Rc4 42.Ra6 (42.Rb8 Nc7 43.Rc8 Kg7+–) 42...Ng7 (42...Nc7 43.Ra7+–) 43.g4 h5 44.h3 hg4 45.hg4 f5 (45...Rc8+–) 46.ef6 Ne8 47.Be5 Bb4 (47...Rc1+–) 48.Ra8 Kf7 49.Rd7 Kf8 50.f7 (50.f7 Rf4 51.Bf4 Kg7 52.fe8Q Kf6 53.Qf7) 1–0. DEFFM – GuestFGHK, freechess.org, 2018.

7.Bd3 a6 8.a5 (better 8.Nc3!?+–) 8...Qd8= 9.b6 c5 10.c4 Nc6 11.0-0 Bd6 12.cd5 (12.Bf6!? Qf6 13.Nc3=+) 12...ed5–/+ 13.Nh4 (13.Nc3 0-0–/+) 13...0-0 Black prepares d4 14.Nf5 Bf5 (14...Be5 15.Nc3–/+) 15.Bf5=+ d4 16.Ra4 Qe7 (16...g6 17.Bc2=) 17.ed4= cd4 18.Re1 (worse 18.Bd4 Nd4 19.Rd4 Qe5 20.Rd6 Qd6–+ (20...Qf5?! 21.Qa4=)) 18...Ne5?? (better 18...Qd8=) 19.f4+– Nf3 (19...Rfe8 20.fe5 Be5+–) 20.gf3 Qd8 21.Bd4 (21.Rd4?! Bc5 22.Qa4 Qd5+–) 21...Bf4 22.Nc3 Re8 23.Kh1 Qd5 1–0. DEFFM – GuestYVGM, freechess.org, 2019.

7.Bd3 Be7 8.0-0 cb5 9.ab5 Bb5?? (better is 9...Na6 10.ba6 Qb2+/–) 10.Bd4+– Qc6 (10...Bc5 11.Bc5 Qc5 12.Ra5+–) 11.Ne5 (11.Ne5 Qc7 12.Bb5 Nc6 13.Nc3+–) 1–0. pierred (2825) – chaman, net–chess.com, 2015.

7.Ne5 cb5 8.Nd7 Nbd7 9.Bb5 a6 10.Bd7 Nd7 11.Bd4 Bc5 (11...Qc7 12.f4=) 12.Bg7 (12.a5 Qc7=) 12...Rg8=+ 13.Bc3 Rg2 14.Na3 (14.Qh5 Nf8=+) 14...d4 (better 14...Qd6 15.Nb1 Rh2-/+) 15.Rb1? (15.Nc4 Qc6 16.ed4 Bd4 17.Bd4 Qc4=+) 15...Qd6?? (15...Qc6 16.Bb2 Ne5 (16...Qa4?! 17.Qf3 Rg5 18.ed4 Ba3 19.Ba3-/+) 17.ed4 Nf3 18.Kf1 Nh2 19.Ke1 Rg6-+) 16.Nc4=+ Qd5 17.ed4 Bd4 (17...Rg6 18.f3 Qc4 19.dc5 Qa4 20.Rb4-/+) 18.Bd4=+ Qd4 19.Qe2 Qd5 (19...Nc5 20.Kf1 Rg4 21.Rg1 Rg1 22.Kg1=+) 20.Ne3= Qg5?? (better 20...Qa2 21.Rb7 Qa1 22.Qd1 Qd1 23.Nd1 Rg4+=) 21.Ng2 (better 21.Kf1 Qg6 22.Ng2 Qc2 23.Rb4+-) 21...Qg2+/- 22.Qf1 (better 22.Rf1!?+/-) 22...Qe4= 23.Kd1 Qf3 24.Kc1 Qa3 25.Kd1 Qf3 26.Ke1 Qe4 27.Kd1 Qf3 ½-½. Martinez,Federico Daniel - Krasilnikova,Marija, Mikhail Tal Blitz, 2020.

7.c4 0-0 8.Qc2 a6 9.c5 Be7 10.Nc3 (10.Ng5!? Re8 11.ba6 Na6 12.d4=) 10...ab5=+ 11.ab5 Ra1 12.Ba1 cb5 13.Nb5 Qa5 (better 13...Ne4!?=+) 14.Bc3= (14.Bc3 Qd8 15.Ng5=). GuestMTSZ – GuestZZDL, freechess.org, 2017.

7.c4 0-0 8.Qc2 a6 9.Be2 ab5 10.ab5 (10.c5 Be7 11.ab5 Ra1 12.Ba1 cb5=+) 10...Ra1 11.Ba1 Qa5 (11...dc4!? 12.Qc4 cb5=+) 12.Bc3 Bb4 13.Bf6 gf6 14.0-0 cb5 (14...Rc8 15.bc6 Rc6=) 15.cb5 (better 15.cd5!? ed5 16.Bd3+–) 15...Bb5=+ 16.Bb5 Qb5 17.Nc3 Bc3 (17...Qc4 18.Qb2=+) 18.Qc3= f5 (18...Nd7 19.Qc7=) 19.Qf6 Nd7 20.Qh6 (20.Qg5 Kh8=) 20...Qb2 (20...f6 21.Nd4 Qb6 22.d3=) 21.d4 (better 21.Qg5 Qg7 22.Qe7=) 21...e5?? (better 21...f6=) 22.Ng5+– Rc8 23.Qh7 Kf8 24.Qf7 1–0. GuestNCHN – GuestNJQB, freechess.org, 2017.

7.c4 0-0 8.Nc3 e5 9.d4 Bg4 10.cd5 cd5 11.de5 Be5 12.Be2 Bf3 13.Bf3 The pressure on the isolated pawn grows 13...Qd6 (13...Nbd7 14.Rc1= (worse 14.Bd5 Qa5 15.Rc1 Qb4–+)) 14.0-0 (better 14.Ra2!?+=) 14...Bh2=+ 15.Kh1 Be5 16.Ba3 Qd8 17.Bf8 Ne4 18.Kg1 (18.Ne4?? Qh4 19.Kg1 Qh2; 18.Be4?? Qh4 19.Kg1 Qh2) 18...Qh4?? (better 18...Nc3 19.Qd3 Kf8=) 19.g3= Bg3?? (19...Ng3 20.Re1 A) 20...Kf8? 21.Qd5 Nd7 22.Qd7+– (22.fg3 Qg3 23.Bg2 Bc3–/+); B) 20...Bc3 21.Qd5 B1) 21...Ba1?? 22.Qb7 Nd7 23.Qa8 (23.Ra1 Rf8 24.Qd7 Qf6–/+) 23...Nf8 24.Ra1+– (24.fg3?! Qg3 25.Kf1 Bf6+–); B2) 21...Be1 22.Re1 Nd7+– (22...Kf8 23.Qb7 Qg5 24.fg3 Qg3 25.Kf1+–)) 20.fg3+– Qg3 21.Bg2 Qe3 22.Kh2 Qc3 23.Qd5 Qc7 24.Bd6 Nd6 (24...Qd6?? 25.Qd6 Nd6 26.Rad1+–) 25.Rac1 Nc6 26.Kh1 (26.bc6?! Ne4 27.Kg1 Qb6 28.Kh1 Ng3 29.Kh2 Nf1 30.Rf1 Qc7 31.Kh3 bc6 32.Qc6 Rc8+=). Human – Human, Chess Game, 2019.

7.c4 0-0 8.Nc3 Re8 9.Be2 e5 10.d3 (10.0-0 dc4 11.Bc4 e4=) 10...Qc7 (10...dc4 11.dc4 Qc7 12.0-0=) 11.Rc1 (11.0-0 d4 12.ed4 ed4=) 11...e4 (11...dc4 12.dc4 e4 13.Nd4+=) 12.Nd2 ed3 (12...Bh2 13.cd5 ed3 14.Bd3+/–) 13.Bd3 dc4 (better is 13...d4!? 14.Nce4 Ne4 15.Ne4 Bb4 16.Ke2 de3–/+) 14.Nc4= Bb4 15.Qb3 Nd5 (15...Bc5 16.0-0+=) 16.0-0 Nc3 (16...Bc3 17.Bc3 Nc3 18.Rc3 (worse is 18.Qc3 cb5 19.ab5 Bb5=) 18...cb5 19.ab5+=) 17.Bc3 (17.Qb4 Nd5 18.Qd6 cb5 19.Qd5 bc4+/–) 17...Bc3+= 18.Rc3 (worse is 18.Qc3 cb5 19.ab5 Bb5=) 18...Be6 (18...cb5 19.ab5 Qc5 20.Rfc1+/–) 19.Qb1 h6 20.Nd2 (20.Rfc1 Rc8+/–) 20...Qa5+= 21.Qc2 Rd8 22.Nf3 (22.Rb1 Bd5+=) 22...cb5 23.ab5 Qb6 (23...a6 24.ba6 Na6 25.Rc1+=) 24.Nd4 Bd5 25.Rc7 Nd7 26.Rc1+/– Ne5 27.Bf5 g6 28.Bh3 Nc6= 29.Rc6 bc6 30.bc6 f5 31.g4 Be4 32.Qc4 Bd5 33.Qc3 Rac8 34.gf5+= Rd6 35.fg6 Rg6 36.Kf1 Qa6 37.Ke1 Rf8 38.f4 Rg1= 39.Kf2 Rc1 40.Qc1 Qa2 41.Kg3 Rf7 42.Nf5+/– Rc7 43.Qc5 Bh1?? 44.Nh6+– Kh7 45.Qf5 Kh8 46.Qf8 (46.Qf8 Qg8 47.Qg8#) 1–0. Finenko – Zagrekov,V, USSR, 1990.

7.c4 0-0 8.d4 dc4 (8...Bb4 9.Bc3 Be7 10.Ne5=) 9.Bc4 Bb4 (9...a6 10.ba6 Na6 11.0-0=) 10.Bc3 Qa5 (10...Be7 11.0-0+=) 11.Qd2 (11.Qb3 Bc3 12.Qc3 Qb6=) 11...Bc3 (11...Ne4 12.Bb4 Nd2 13.Ba5 Nc4 14.Bb4=) 12.Qc3 Qb6 13.a5 (13.Na3 Ne4 14.Qc2 Qa5 15.Kf1 Nf6=) 13...Qd8 14.Na3 (14.a6 A) 14...cb5?? 15.ab7 Na6 16.ba8Q (16.Ra6?! Rb8 17.Bd3 Rb7+–) 16...Qa8 17.Ra6 bc4 18.Qa3+– (18.Qc4?! Rc8 19.Qa2 Rc1 20.Kd2 Rh1+=); B) 14...Qb6 15.ab7 Qb7 16.bc6 Bc6=) 14...Ne4 15.Qb4 cb5 16.Bb5 Nc6 17.Bc6 Bc6 18.0-0 Ng5 (18...Qd6 19.Nc2=) 19.Ne5+= Bd5 (19...Nh3 20.Kh1 Bd5+=) 20.h4 (20.Nb5!?+=) 20...Ne4+= 21.f3 (21.Nf3 Nd6+=) 21...Ng3 22.Rfc1?? (better is 22.Rfb1!?+=) 22...Qh4 (better is 22...Ne2 23.Kf2 Nc1 24.Rc1 Qh4 25.Kg1 f6–+) 23.Qd2?? (23.Qb5 a6 24.Qd3 Rac8–+) 23...Qh1 (better is 23...Bf3 24.Qd3 Ne2 25.Kf1 Nc1 26.Rc1 Rac8 27.Rc8 Qh1 28.Kf2 Qg2 (28...Rc8?! 29.Kf3 Qh5 30.Kf2–/+) 29.Ke1 Qg1 30.Kd2 Qd1 31.Kc3 Rc8 32.Nac4 Qc1 33.Kb3 Bd5–+) 24.Kf2–/+ Qh4 25.Kg1 f6 (25...Bf3 26.Qd3 Ne2 27.Kf1 Nc1 28.Rc1–+) 26.Nd7?? (better is 26.Ng4–/+) 26...Rfd8 (26...Bf3 27.Qa2 Ne2 28.Qe2 Be2 29.Nf8 Kf8 30.Rc3–+) 27.Nc5 (27.e4 Be4 28.Qe3 Rd7 29.fe4 Rd4 30.Rc4 Rc4 31.Nc4 Qh1 32.Kf2 Qa1 33.Kg3–+) 27...e5 (better is 27...Bf3 28.Qa2 Qh1 29.Kf2 Qg2 30.Ke1 Qf1 31.Kd2 Qe2 32.Kc3 Qe3 33.Kb4 Rd4 34.Nc4 Rc8–+) 28.e4–/+ Bf7 29.d5 f5 30.Qb4?? (30.Nb7 fe4 31.Nd8 Rd8 32.Qe3 Bd5 33.Rd1 ef3 34.gf3 Qh1 35.Kf2 Qh2 36.Ke1–+) 30...fe4 (better is 30...Ne2!? 31.Kf1 Nc1 32.Qe1–+) 31.fe4 (31.Re1–+) 31...Ne2 (31...Ne2 32.Kf1 Bh5–+) 0–1. Hal1958 – MindenFele, playchess.de, 2002.

7.c4 0-0 8.Be2 Ne4 9.0-0= Ng5 10.d3 (10.Ne5 cb5 11.ab5 dc4+=) 10...Nf3 11.Bf3 Qh4 (11...Qc7 12.h3=) 12.g3 Qe7 (12...Qg5 13.Ba3 Ba3 14.Na3=) 13.cd5 (13.Nd2 Qg5=) 13...ed5 14.Nc3 Bh3 (14...Re8 15.a5=) 15.Re1 Nd7 16.bc6 (16.d4 f5=) 16...bc6 17.e4 (17.d4!? Rfb8 18.Rb1=) 17...d4=+ 18.Ne2 (18.Na2 Qf6=+) 18...c5 (18...Bb4 19.Nd4 Be1 20.Qe1=+) 19.Kh1 (19.Bc1 Ne5 20.Nf4 Nf3 21.Qf3 Be6=+) 19...Ne5 20.Ng1 (20.Bg2 Ng4 21.Kg1 Qf6–/+) 20...Bd7 (20...Be6 21.Bc1–/+) 21.Bg2 Qg5 (21...Rab8 22.Bc1–/+) 22.Nf3 (22.Rb1 Qg6=+) 22...Qh6 (22...Nf3 23.Bc1 (23.Qf3?? Bg4–+) 23...Qg6 24.Bf3=+) 23.Bc1 (23.Ne5 Be5 24.Qc1 Qc1 25.Rec1=) 23...Qf6 (23...Qe6!?=) 24.Ne5+= Be5 25.f4 Bc7 26.e5 Qb6 (26...Qd8 27.Ba8 Qa8 28.Kg1=) 27.Ba8+– Ra8 28.Kg1 Bh3 (28...Rc8 29.Qc2+–) 29.Qe2 (29.Qc2 Rc8+–) 29...Qc6 (better 29...Qg6+–) 30.Qe4 (30.Ba3 Ba5 31.Rec1 Bc3+–) 30...Qe8 (better 30...Qe4 31.de4 c4=) 31.Ba3 Bb6 32.Qd5 (32.f5 Rc8+–) 32...Rd8 (32...Rc8+–) 33.Qe4 g6 (33...Ra8 34.Qf3 Bd7 35.Rec1+–) 34.a5 (better 34.Rec1!? Rc8 35.a5 Ba5 36.Rc5+–) 34...Bf5 (34...Ba5 35.Red1 Bf5 36.Qg2+=) 35.Qf3 (35.Qg2 Ba5 36.Red1 Rc8+=) 35...Ba5 36.Re2 (36.Rec1 Bc3 37.g4 Ba1 38.Ra1 Bc8 39.Bc5 Qb5 40.Ba7 Qb2+=) 36...Bb6 (36...Qb5 37.Rf2 A) worse 37...Qd3 38.Qd3 (worse 38.Bc5 Qc3 39.Qc3 Bc3=+) 38...Bd3 39.Bc5+=; B) 37...Bc3–/+) 37.g4 (37.Rd2 Be6+=) 37...Be6 38.f5 Bd5 39.Qf2 (39.Qg3 c4+=) 39...c4= 40.fg6 (40.Bd6 Rc8=) 40...hg6 (better 40...fg6 41.Bd6 Qe6=+) 41.Rf1?? (better 41.Qf4=) 41...cd3–+ 42.Rd2 Qe5 43.Qf7?? (better 43.Re1 Qe3! 44.Bb4–+) 43…Bf7 0–1. GuestBZNP – GuestHPKF, freechess.org, 2018.

7.c4 cb5 8.ab5 0-0 9.Be2 dc4 10.Bc4 Bb4 (10...Qe7 11.0-0=) 11.0-0 Qb6 Attacking the isolated pawn on b5 (11...Bd6 12.d3+=) 12.Nc3 (12.Bd4 Bc5 13.Bf6 gf6+–) 12...Bc3 (12...Rc8!? 13.Qb3 Bd6+=) 13.Bc3+– Bb5 14.Rb1 a6 15.Bf6 gf6 16.Nd4 Nd7 (16...Qc7 17.Qg4 Kh8 18.Nb5 ab5 19.Bb5+–) 17.f4 (17.Qg4 Kh8 18.Nb5 ab5 19.Bb5 f5+–) 17...Qc5 (17...Qd6 18.Bb5 ab5 19.Nb5+–) 18.Bb5 (worse 18.Nb5 Qc4 19.d3 Qc5=) 18...ab5 19.Rb5 Qc4 (19...Qc7 20.Qb1+–) 20.Rh5 (better 20.Rb7!? Qd5 21.Rb5+–) 20...f5+= 21.Rg5 (21.Qe1 Rfd8+–) 21...Kh8 22.Qh5 Ra2?? (better 22...b6+=) 23.Qh6+– f6 (23...Rg8 24.Rg8 Kg8 25.Qg5 Kh8 26.Qd8 Kg7 27.Qd7 h6+–) 24.Qg7 1–0. GuestCKQB – GuestQGFM, freechess.org, 2016.

7.c4 dc4 8.Bc4 cb5 9.ab5 =.

7.d4 0-0 8.Bd3 c5 9.dc5 Bc5 10.0-0 a6 11.Nbd2 ab5 12.ab5 b6?? (better 12...Ra1 13.Qa1 Bc8+–) 13.Ra8+– Qc7 (13...Bd6 14.c4+–) 14.Qa1 e5 (14...Ne8+–) 15.Be5 Bd6 16.Bf6 gf6 17.Qf6 Be6 18.Qg5 (18.Bh7 Kh7 19.Ra4 d4 20.Rd4 Bf4 21.ef4 Qd8 22.Rd8 Rd8 23.Ng5 Kg8 24.Qd8 Kg7 25.Ne6 fe6 26.Qb8 e5 27.Qe5 Kf7 28.Ra1 Kg6 29.Ra7 Kh6 30.Qg5) 18...Kh8 19.Qf6 Kg8 20.Bh7! Kh7 21.Ra4 Be7 22.Rh4 Kg8 23.Qh8 (23.Rh8) 1–0. DEFFM – GuestWPPX, freechess.org, 2019.

7.d4 0-0 8.Bd3 h6 9.0-0 cb5 10.ab5 Qb6 11.Na3 (11.Ba3 Rc8+=) 11...a6 (11...Rc8!?=) 12.c4+– ab5 (better 12...dc4!? 13.Nc4 Qb5 14.Nd6 Qb2+=) 13.c5+– (13.cb5?! Na6=) 13...Bc5 14.dc5 Qc5 15.Bd4 (15.Nc2 Nc6+–) 15...Qb4 (15...Qe7 16.Nb5 Nc6 17.Ne5+–) 16.Nc2 (16.Nb5 Na6 17.Bf6 gf6+–) 16...Ra1 17.Qa1 Qa4? (better 17...Qe7+–) 18.Bf6 gf6 19.Qf6 (19.Qf6 Qg4 20.Qh6+–) 1–0. onur604 (2315) – owl77 (1995), lichess.org, 2020.

7.d4 Qa5 8.Qd2 Bb4 (8...Qc7 9.Bd3=) 9.c3+= Bd6 10.Bd3 cb5 (10...Qc7 11.0-0+=) 11.ab5+– Qb6 12.Na3 Ba3? (better 12...0-0!? 13.c4 Qc7+–) 13.Ba3+– (13.Ra3?! Bb5 14.Rb3 a6=) 13...a6 14.Bc5 (14.ba6 ba6 15.0-0 Bb5+–) 14...Qc7 15.0-0 (15.Qe2 b6 16.Bb4 Ne4+–) 15...b6 (15...Ne4 16.Be4 de4+–) 16.Bb4 a5 17.Qc2 (17.Qb2 Bc8+–) 17...Ng4? (better 17...Bc8+–) 18.h3 (better 18.Ba3+–) 18...e5 (18...Nf6 19.Ba3 Bc8+–) 19.hg4 e4 (19...Qb7 20.Ba3 e4 21.Be4 de4 22.Ng5+–) 20.Be4! de4 (20...Qb7 21.Ba3 de4+–) 21.Qe4 Be6 22.Ba3 Ra7 (22...Qa7 23.d5 Qb7 24.Qd4+–) 23.d5 Qc3 (23...Qb7 24.Qd4 Bg4 25.Qg7 Bf3 26.Qh8 Kd7 27.gf3 Qc7+–) 24.de6 Re7 25.ef7 (25.ef7 Kd8 26.Qe7 Kc8 27.Rfc1 Qc5 28.Bc5 Nd7 29.Bd6 Kb7 30.Qd7 Ka8 31.Rc7 a4 32.Ra7) 1–0. DEFFM – GuestQYNB, freechess.org, 2019.

7.d4 a6 8.Nc3=.

7.d4 c5 8.c4 (8.dc5 Bc5 9.Bd3+=) 8...b6 (8...0-0!?=) 9.Be2 (9.Nc3 0-0+–) 9...a6 10.0-0 ab5 11.ab5 Ra1 12.Ba1 Qc7 (12...0-0!?+–) 13.dc5+– Bc5 (13...Qc5 14.cd5 0-0 15.Bd4+–) 14.cd5 ed5 (14...0-0 15.Bf6 gf6 16.Nc3+–) 15.Bf6 gf6 16.Nc3 Be6 (16...0-0 17.Nd5 Qd6 18.Qb3+–) 17.Nd5 Bd5 (17...Qd8 18.Bc4+–) 18.Qd5 Nd7 (18...Be7 19.Nd4 Qe5 20.Qf3+–) 19.Rd1 Ke7 (19...Nb8+–) 20.Bc4 Rf8 (20...Kd8 21.Qa8 Qc8 22.Qc6 Qc6 23.bc6+–) 21.Nh4 1–0. GuestCMNS – GuestBXRM, freechess.org, 2020.

7.Be2 0-0 8.0-0 a6 9.c4 dc4 10.d4? (10.ba6 Na6 11.Bc4 b5=) 10...cd3 (better 10...ab5!? 11.Nbd2 Na6–+) 11.Qd3=+ Bc7 (11...Nd5 12.Nc3=+) 12.Ng5 e5 (12...g6 13.Nc3=) 13.f4 (13.b6!? Bb6 14.Be5=) 13...Re8=+ 14.b6 Bb6 15.fe5 h6?? (better 15...Bg4 16.Qb3 Nd5 (16...Be2?? 17.Qf7 Kh8 18.ef6 Be3 19.Kh1 Qf6 20.Qe8 Qf8 21.Rf8) 17.Nf7 Qd7 18.Bg4 Qg4=) 16.Nf7+– (16.ef6 hg5 17.Bd4 c5–/+) 16...Kf7? (16...Qe7 17.Nh6! gh6 18.Rf6 Be3 19.Kh1 Be6 20.Rg6 Kf8 21.Qe3 Qh4+–) 17.Bh5 (17.ef6 Be3 18.Kh1 g6 19.Qb3 Re6+–) 17...Kg8 18.ef6 Be3 19.Kh1 Rf8 (19...Be6 20.Qg6 Re7 21.f7 Rf7 22.Rf7 Bd4 23.Rg7 Kf8 24.Rf7 Bf7 25.Qf7) 20.Qc4 Kh8 21.fg7 (21.fg7 Kh7 22.g8Q Rg8 23.Qf7 Rg7 24.Qg7) 1–0. guest288 – guest89, chessclub.com, 2018.

7.Be2 0-0 8.0-0 a6 9.Ne5 ab5 10.ab5 Ra1 11.Ba1 c5 12.c4 Be5? (better 12...Be8=) 13.Be5+– 1–0. GuestPQBY – GuestHCRR, freechess.org, 2019.

7.Be2 0-0 8.0-0 Qb6 9.Bf6 (9.Bf6 gf6 10.Nc3=). WG_Anonymous – Anonymous, lichess.org, 2021.

7.Be2 cb5 8.ab5 0-0 9.0-0 a5 10.c4 dc4 11.Bc4 b6 12.Be5 (12.d3 Bc8=) 12...Bb4 (better 12...Bb5!? 13.Bb5 Be5 14.Ne5 Qd5=+) 13.d4 Nd5 (13...Bc8 14.Qa4=) 14.e4 Nf6 15.Nbd2 Be8 (15...Bc8 16.Qe2+=) 16.Qc2 Nbd7 17.Bf4 Nh5 18.Be3 g6 (18...Nhf6!?+=) 19.Bh6 Ng7 20.Qb2 Nf6 21.d5! ed5 22.ed5 Bd7 23.Ne4 Be7?? (better 23...Nfe8+–) 24.d6+– Bf5 (24...Nfh5 25.de7 Qe7+–) 25.de7 Qe7 26.Nf6 Kh8 27.Bg7 (27.Bg7 Kg7 28.Ne8 Kh6 29.Qg7 Kh5 30.Qh7 Kg4 31.Qh3 Kf4 32.Qg3 Ke4 33.Rfe1) 1–0. DEFFM – perifeue, freechess.org, 2017.

7.Be2 Qb6 8.c4 c5 (8...dc4 9.Bc4 cb5 10.ab5 Bb5 11.Qb3=) 9.a5 (9.Bf6 gf6 10.cd5 ed5+=) 9...Qc7 (9...Qd8 10.d4+=) 10.0-0 a6 11.Bf6 gf6 12.b6 Qd8 (12...Qc6 13.cd5 Qd5 14.Nc3+=) 13.d4 (13.cd5 ed5 14.d4 cd4 15.Nd4 Qe7+–) 13...Rg8 (13...dc4 14.Bc4 cd4 15.Qd4+=) 14.g3 (14.dc5 Bc5 15.cd5 f5+–) 14...h5? (14...dc4 15.Bc4 cd4 16.Qd3+=) 15.Nh4 (better 15.dc5 Bc5 16.cd5+–) 15...f5+= 16.Bh5?? (better 16.Nf3 dc4 17.Bc4=) 16...Qh4–/+ 17.cd5 ed5 (17...f4 18.de6 Be6 19.ef4 cd4 20.Bf3–/+) 18.Bf3 (18.dc5 Be7 19.Nc3 Nc6= (worse 19...Bc5 20.Nd5 Bd6 21.Nc7 Bc7 22.bc7+–)) 18...Qh6 19.Bd5 Rh8 20.h4 Nc6 21.dc5 Be5 22.Ra4 (better 22.Bf7 Ke7 23.Ra2–/+) 22...Rg8?? (22...0-0-0!? 23.Qf3 Kb8–/+) 23.Qf3?? (23.Bf7 Ke7 24.Bg8 Rg8+–) 23...Bg3?? (better 23...0-0-0=+) 24.fg3+– Ne5 (better 24...Qf8 25.Rd4! Rg7+–) 25.Qg2?? (25.Qf4 Qf4 A) 26.Rff4?! Ba4 27.Bb7 A1) 27...Rg3? 28.Kh2 Re3 29.Ba8+– (29.Ra4?! Rd8=); A2) 27...Bc6 28.Ba8 Ba8=; B) 26.ef4 Ba4 27.fe5 0-0-0 28.Bf7 Rg3 29.Kh2 Re3=; C) 26.Raf4+–) 25...Qe3 (better 25...Ba4 26.Bb7 Rd8–+) 26.Kh1?? (26.Qf2 Rg3 27.Kh2 Rh3 28.Kg2 Ba4 29.Bb7 Rh2 30.Kh2 Ng4 31.Kg2 Nf2 32.Rf2–+) 26...Ba4–+ 27.Rf5 (27.Bb7 Rb8 28.Bd5–+) 27...Qe1 (27...Rg3 28.Qf2 0-0-0 29.Qe3 Re3 30.Bg2 Rd1 31.Rf1 Rf1 32.Bf1–+) 28.Kh2?? (better 28.Qg1 Qg1 29.Kg1–/+) 28...Ng4–+ (28...Qb1?! 29.Re5 Kf8 30.Qf2+=) 29.Kh3 Bd7 (29...Qb1 30.Bf7 Kd8 31.Qb7=) 30.Bf7 (30.Qe4 Qe4 31.Be4 Nf2 32.Kh2 Bf5 33.Bf5 Ng4 34.Kh3 Ne3–+) 30...Kd8 (30...Ke7 31.Bg8 Rg8 32.Rd5–+) 31.Bg8 (31.Rd5 Qe7 32.Rd7 Qd7–+) 31...Bf5 (better 31...Nf2 32.Kh2 Bf5 33.Qd5 Bd7–+) 32.Qd5 (32.Qd2 Qd2 33.Nd2 Nf6 34.g4 Bg4 35.Kg3–+) 32...Bd7 33.Be6 Qe6 (33...Qe6 34.Qe6 Be6–+) 0–1. GuestVCXX – GuestYGZH, freechess.org, 2017.

7.Be2 Qe7 8.0-0 0-0 9.d4 c5 10.c4 cd4 (10...dc4 11.Bc4 cd4 12.Qd4+=) 11.Qd4+– Bc5 12.Qf4 b6 (12...Bd6 13.Qh4+–) 13.Ne5 (13.Nc3 Bd6 14.Qh4 Rd8+–) 13...Bc8 14.a5 Nbd7 (14...ba5!? 15.Nd2 Bd6+–) 15.ab6+– Ne5 16.Be5 Bb7 (16...Ne4 17.Bd4+–) 17.ba7 Rfc8 18.cd5 Bd5 19.Bf6 Qf6 20.Qf6 gf6 21.Nc3 Ra7 22.Nd5 ed5 23.Ra6 Rb8 (23...d4 24.ed4 Bd4+–) 24.Rd1 Rd7 25.Rf6 Kg7 26.Rf5 Rbd8 27.Rg5 Kf6 28.Rh5 Kg6 29.e4! de4 (29...Rd6 30.Rd3 Kg7+–) 30.Rd7 Bf2 (30...Rd7 31.Rc5 Rd8 32.g3+–) 31.Kf2 Rd7 32.g4 Rd2 (32...Rd6 33.Ke3+–) 33.b6 Rb2 (33...Rd8 34.b7 f5 35.Rf5 Rb8+–) 34.Rb5 (34.Rb5 Rd2 35.b7+–) 1–0. DEFFM – GuestWBPN, freechess.org, 2019.

7.Be5 Be5 8.Ne5 0-0 =.

7.Ne5 Be5 8.Be5+= a6 (8...cb5 9.ab5 Bc8 10.Nc3+/-) 9.Nc3+/- cb5 (9...Bc8!?+/-) 10.ab5+- Ne4?? (better 10...Bc8+-) 11.Ne4 (11.Bg7?! Rg8 12.Bd4 Qg5+-) 11...de4 12.Qg4 Rg8 (12...Qb6 13.Qg7 Rf8 14.c4+-) 13.Qe4 Bb5 (13...f6 14.Bc3 Bc8 15.Qh7 Rf8+-) 14.Bb5 Ke7 (14...Nd7 15.Qb7 Ke7+-) 15.Qb4 (15.Qb4 Qd6 16.Qd6) 1-0. DEFFM – MarriedAQueen, freechess.org, 2021.

8.Bd3 A) 8...Qe8 9.bc6 (9.Nc6 bc6 10.Bf6 gf6 11.Qh5 f5 12.Qg5 Kh8 13.Qf6 Kg8 14.Qg5=) 9...bc6 10.0-0 c5 11.c4 Qe7 12.f4 Rd8 13.Qf3 Bc6=; B) 8...c5 9.Be2 (9.0-0 c4 10.Be2 a6 11.Nd7 Nbd7 12.Nc3 Qc7 13.f4 e5+=) 9...a6 10.0-0 ab5 11.ab5 Ra1 12.Ba1 c4 13.Nd7 Nbd7+=.

8.Nd7 A) 8...Nfd7 9.Nc3 (9.Bd3 Nc5 10.Be2 Qh4 11.Nc3 a6 12.g3 Qb4 13.Ra2 Qa5=) 9...a6 10.Be2 Ne5 11.f4 Nc4 12.Bc4 dc4 13.ba6 Na6=; B) 8...Nbd7 9.Be2 (9.Nc3 a6 10.Be2 ab5 11.ab5 Qc7 12.bc6 bc6 13.h3 Rab8+=) 9...Qc7 10.f4 Rfc8 11.bc6 Qc6 12.Bc3 Ne4 13.0-0 a6+=.

8.Be2 Qc7 (8...a6 9.f4 (9.0-0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.f4 b4 13.Bd3 Ba4+=) 9...ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nd7 Nbd7 13.Bb5 Ne4+=) 9.f4 (9.bc6 Nc6 10.Nc6 Bc6 11.Bf6 gf6 12.Bb5 f5 13.Qh5 f6=) 9...cb5 (9...Rc8 10.Bd4 Be8 11.c4 Ne4 12.0-0 f6 13.Nf3 e5=) 10.ab5 Qb6 (10...Rc8 11.Bd4 Bc5 12.Bc5 Qc5 13.Nc3 Ne4=) 11.Nc3 (11.Bd4 Bc5 12.Bc5 Qc5 13.Nc3 a6+=) 11...Be5 (11...Rc8!?= 12.Na4 Qd8 13.Bd4 Ne4+=; 11...a6 12.0-0 Rc8 13.Ra2 Bb4+=) 12.Na4 (12.fe5 Ne4 13.Ne4 de4+–) 12...Qd8 13.Be5 (13.fe5 Ne4+/–) 13...Ne4 14.0-0 f6 (14...a6!? 15.Nc3 f6+=) 15.Bd4+/– Be8 (15...e5!? 16.fe5 fe5 17.Be5 Rf1 18.Bf1 a6 19.ba6 Na6+/–) 16.d3+– Nd6 17.Nb6! Bb5? (17...ab6 18.Ra8 Pinning (18.Ra8 Deflection; 18.Ra8 Clearance)) 18.Na8 Nc6 (18...Na6 19.c4 Bc6 20.cd5 ed5 21.Ba7 Qa8+–) 19.Nb6! Nd4 (19...ab6 20.Bc3 Combination) 20.ed4 ab6 (20...Qb6 21.c3+=) 21.Bf3 (21.Re1!?+–) 21...Nf5+/– 22.c3 (22.Bg4!? Nd4 23.c3+/–) 22...Ne3= 23.Qe2 Nf1 24.Qe6 Kh8 25.Rf1 Bd3 26.Re1 Bc4 ½–½. blackdogs (2450) – rollerblade (2495), net–chess.com, 2014.

8.f4 cb5 9.ab5 Be8 (9...Ne4!? 10.Nf3 Qe8=) 10.Be2+= Nbd7 11.0-0 Nc5 12.c4 (12.Bd4+=) 12...Nfd7? (better 12...dc4!? 13.Bc4 Nd5+=) 13.cd5 ed5 14.Bf3 (14.Nc3 Nf6+–) 14...Ne5 (14...Be5 15.fe5 Nd3 16.Ba3 N7e5 17.Bf8 Kf8 18.Qa4+–) 15.fe5 Bc7 (15...Be7 16.d4 Bb5 17.dc5 Bf1 18.Kf1 Bc5 19.Nc3+–) 16.Qc2 (16.d4 Bb5 17.dc5 Bf1 18.Kf1 Qg5+–) 16...Bb6 (16...Ne6 17.Na3+=) 17.Bd4 (17.d4!? Ne4 18.Be4 de4+–) 17...Rc8 (better 17...Ne4 18.Be4 de4 19.Bb6 Qb6+–) 18.Qa2?? (18.Nc3 Ne6 19.Bb6 ab6 20.Qd3+– (20.Bd5? Qd5 21.Qh7 Kh7 22.Nd5 Rd8 23.Nb6 Rd2–+)) 18...Bb5–/+ 19.Nc3 Bc4 20.Qb2 Bf1 (20...Re8 21.Bc5 Rc5 22.d4–/+) 21.Rf1=+ Nd3 22.Qb3? (better 22.Qb1!? Bd4 23.ed4=+) 22...Bd4–+ 23.ed4 Qg5 24.Bd5? (24.Qa2 Nb4 25.Qb2 a5–+) 24...Qd2 25.Bf7?? (25.Ne4 Qe2 26.h3–+ (26.Rf7 Rc1 27.Qd1 Rd1 28.Rf1 Kh8 29.h3 Qf1 30.Kh2 Rf3 31.gf3 Qg1; 26.Qb7?? Qe3 27.Kh1 Rc1–+; 26.Bf7?? Kh8 27.h3 Qe4–+)) 25...Kh8 26.Ne4 (26.Nd1 Nf4 27.Nf2–+) 26...Qe3 (better 26...Qe2 27.h3 Qe4–+) 27.Kh1?? (better 27.Nf2 Rc1 28.Qd3 Rf1 29.Kf1 Qc1 30.Nd1 Rf7 31.Ke2–+) 27…Qe4 (27...Qe4 28.h3 Nf2 29.Kh2 Qf4 30.Qg3 Qf7–+) 0–1. GuestHJSB – GuestZVVH, freechess.org, 2019.

8.f4 Ne4 9.Qf3 f6 10.Nd7 Nd7 11.Nc3 Nc3 12.Bc3 e5 13.a5 a6+=.

8.f4 Ne4 9.Nf3=.

8.f4 Ne4 9.Qg4 f5 10.Qf3 a6 11.Bd3 ab5 12.ab5 Ra1 13.Ba1 Qa5+=.

8.f4 Qe8 9.Nc3 (9.Qf3 cb5 10.Nd7 Nbd7 11.ab5 Qc8 12.Nc3 Bb4 13.Qg3 g6=) 9...c5 10.Qf3 a6 11.Be2 ab5 12.Nd7 Nbd7 13.Nb5 Qe7=.

7.c4 a6 8.d4 (8.cd5 ed5 (worse 8...cb5 9.de6 Be6 10.ab5+=; worse 8...cd5 9.Be2=) 9.Be2 0-0=) 8...dc4 (8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5=+) 9.Bc4 (9.bc6 Nc6 10.Bc4 Rc8=) 9...ab5=+ 10.ab5 Ra1 11.Ba1 cb5 12.Bd3 0-0 13.0-0 Bc6 14.Qe2 b4 15.e4 (15.Nbd2 Qd5=) 15...Qb6 (15...Qc7 16.Bb2=+) 16.Nbd2 (16.Rc1 Qa5 17.Nbd2 Qh5=) 16...h6 (16...Qc7 17.Bb2=) 17.d5 (17.Rc1!?=) 17...ed5=+ 18.ed5 Nd5 19.Qe4 f5?? (better 19...g6 20.Nh4 Bh4 21.Qh4 Kh7=+) 20.Qe6+– Kh8 (20...Rf7 21.Ne5 Be8 22.Qd5 Qd6 23.Qd6 Bd6 24.Nf7 Kf7 25.Bf5 Bd7 26.Bd7 Nd7+–) 21.Qh6 Kg8 22.Qg7 1–0. DEFFM – GuestYFNS, freechess.org, 2018.

7.c4 dc4 8.Bc4 0-0 9.0-0 a6 10.Nc3 cb5 11.ab5 a5 12.Ne5 (12.Qe2 Be8+–) 12...Bd6 (12...Be8 13.Be2+–) 13.f4 Bb4 (13...Be8 14.d4+–) 14.Na2 (14.Qf3 Bc8+–) 14...Bd6+– 15.Ng4 Nd5 (15...Be7 16.Nf6 Bf6 17.Bf6 Qf6 18.Nc3+–) 16.Nh6! Kh8 (16...gh6 17.Qg4 Decoy) 17.Qf3 f6 (17...Be7 18.f5 Bg5 19.Qe4 Bh6 20.fe6+–) 18.Bd5 ed5 19.Qd5 Qe7 20.Qb7 Bc6?? (20...Na6 21.ba6 Rab8+–) 21.bc6 Nc6 (21...Ra7 22.Qe7 Be7 23.Rfc1+–) 22.Qc6 Rac8 (22...gh6 23.Nc3 Rac8 24.Qa6+–) 23.Nf7! Rf7 (23...Qf7 24.Qd6 Deflection; 23...Rf7 24.Qc8 Deflection) 24.Qc8 Rf8 1–0. DEFFM – GuestQKVC, freechess.org, 2018.

7.c4 dc4 8.Bc4 0-0 9.Qc2 cb5 10.ab5 Qc7 11.Ng5 (11.Be5 Bd6 12.Bd6 Qd6+=) 11...g6 (11...Rc8 12.Ra4 h6–/+) 12.Qc3+= Bc8 (12...Rc8 13.d3 a6 14.0-0+–) 13.h4 Nbd7? (13...h6 14.d3+/–) 14.h5 (better is 14.Ne6 Qb6 15.Nf8 Nf8 16.Qd4+–) 14...Qe5?? (better is 14...Nb6 15.Nh7 Kh7 16.hg6 Kg8 17.Qf6 Bf6 18.Bf6 fg6 19.Rh8 Kf7 20.Rh7 Kf6 21.Rc7 Nc4 22.Rc4 Rh8+/–) 15.Qe5+– Ne5 16.Be5 Ng4 (16...Nh5 17.Ne4+–) 17.Nf3 Ne5 18.Ne5 1–0. Leon Manas,JF (1685) – Suarez Fleitas,Alberto, Liga Insular de Ajedrez por Equipos Cat, 2013.

7.Be2 0-0 8.0-0 a6 9.Nc3 (9.Ne5 ab5 10.ab5 Ra1 11.Ba1 cb5=) 9...Bd6 10.bc6 (10.Nb1 ab5 11.ab5 Ra1 12.Ba1 cb5=) 10...Bc6 (10...Nc6 11.Ba3 Ba3 12.Ra3=) 11.d4 (11.Ba3 b6=) 11...Re8 (11...Qe7 12.a5=) 12.Ne5 (12.Ba3 Bc7=) 12...Qc7 13.f4 Nbd7 (13...Bd7 14.Bd3=) 14.Ba3 Ba3 (worse is 14...Be5 15.fe5 (15.de5?! Ne4 16.Ne4 de4+=) 15...Ne4 16.Ne4 de4 17.Bd6+/–) 15.Ra3 Ne5 (15...Rec8 16.a5=) 16.fe5+= Nd7 17.Bg4 (17.Bd3 Rac8+=) 17...f6 (17...Nb6 18.Bh5 Rf8 19.Be2=) 18.Qf3 Qd8 (18...Kh8 19.ef6 Nf6 20.Rb3=) 19.Qh3 (better is 19.Rb3+=) 19...h6? (better is 19...Qe7 20.ef6 Nf6=) 20.Be6+– Kh8 21.Bd5 Bd5 (better is 21...fe5!? 22.Qg3 Rf8 23.Rf8 Qf8+/–) 22.Nd5+– fe5 23.c4 (23.Rf7 Nf8 24.Qg3 g6+–) 23...Rf8 (23...ed4!? 24.Qg4 Ne5 25.Qd4 Qg5+/–) 24.Rf8+– Qf8 25.Ra1 Rd8 26.Rf1 Qe8 27.Nc7 Qe7 28.Qe6 Qe6 29.Ne6+– Re8 30.d5 b6 31.h3 Re7 32.g4 Nc5 33.Nc5 bc5 34.Rf8 Kh7 35.Rc8 e4 36.Rc5 Kg8 37.Ra5 Ra7 38.d6 Kf8 39.c5 Ke8 40.c6 Kd8 41.Re5 Ra8 42.Re4 g5 43.Re6 Rc8 44.d7 Rb8 45.Re8 Kc7 46.Rb8 (46.Rb8 Kd6 47.d8Q Ke5 48.Qd4 Ke6 49.Re8 Kf7 50.Qd7 Kf6 51.Re6#) 1–0. Del Val,J – Agustoni,Marco, Leukerbad op, 1992.

7.Be2 a5 8.0-0 cb5 (8...0-0 9.Be5=) 9.ab5 0-0 10.c4 dc4 11.Na3 1–0. pcmvr – alexp, net–chess.com, 2017.

7.Be2 a6 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Bb5 Bb5 12.Nb5 0-0 13.0-0 Na6 14.d4 (14.Rb1!?+=) 14...Qc8 (14...Nc7 15.Nc3=) 15.Rc1 (15.Qa4 Ne4=) 15...Ne4 16.Ne5 (16.Qa4 Nb4 17.Qb3=) 16...Bf6 (16...f6!? 17.Nd3 Qd7=) 17.c4 (17.f3 Be5 18.de5 Qd7+=) 17...Be5 18.de5 Qc6 (18...dc4 19.Qa4+=) 19.Na3 (19.Nd4!? Qd7 20.Ba3+=) 19...Nd2 20.cd5 Qd5 21.Rd1 Rd8 (21...Nc5 22.Bd4 Ncb3 23.Qb2=) 22.Bd4+= Nb3 23.Qc3 (23.Qb1 Nac5=) 23...Nbc5 (23...Nac5 24.Nc4=) 24.Rb1 Ne4 (24...f6 25.f3 Na4 26.Qa1=) 25.Qb2 (better 25.Qc4+=) 25...Nac5?? (25...f6 26.f3 Nec5 27.ef6 e5 28.Bc5 Nc5+=) 26.Qe2?? (better 26.f3+–) 26...h6 (26...Nb3 27.Nb5=) 27.Nb5 (27.f3 Nb3 28.fe4 Nd4 29.ed4 Qd4 30.Kh1 Qe5+–) 27...Na4 (27...Nb3 28.Rd1=) 28.Nc7 (better 28.f3!? Nec5 29.e4+–) 28...Qd7 (28...Nec3 29.Bc3 Qe4 30.Rb4 Nc3 31.Re4 Ne2 32.Kf1–+) 29.Qb5 (29.Nb5 Qd5=) 29...Nac3 30.Qd7 Rd7 31.Rb7 Ne2 32.Kf1 Nd4 33.Rb8?? (better 33.ed4 Rd4 34.f3=) 33...Kh7–+ 34.ed4 Rc7 35.f3 (35.Ke2–+) 35...Ng5?? (better 35...Nc3–+) 36.h4= Rd7 (36...Nf3 37.gf3 Rd7 38.Rb4=) 37.hg5 hg5 38.Rb4 f6 39.ef6 gf6 40.Ke2 Kg6 41.Ke3 Kf5 42.Rb5 Kg6 43.Ke4 Kf7 44.g4 Ra7 45.Rb6 Ra1 46.Rb7 Kg6 47.Ke3 Re1 48.Kf2 Ra1 49.Rb6 Kf7 50.Ke3 Ra3 51.Ke4 Ra5 52.Rb7 Kg6 53.Re7 Ra6 54.f4 f5 55.gf5 ef5 56.Kf3 (56.Ke5 Ra5 57.d5 gf4 58.Kf4 Rd5 59.Re6 Kf7=) 56...g4=+ 57.Kf2 (57.Kg2 Rd6 58.Kg3 Rd4 59.Re6 Kf7=+) 57...Kf6 (57...Ra3 58.Re6 Kf7 59.Re3 Re3 60.Ke3=+) 58.Re2 (58.Re8!?=) 58...Ra3–/+ 59.Re8 (59.Kg2 Rf3 60.Rf2 Rf2 61.Kf2 Ke6–/+) 59...Rf3 60.Kg2?? (better 60.Ke2–/+) 60...Rf4–+ 61.Rd8 Ke7 62.Rd5 Rf3 63.Re5 Kd6 (63...Kf6 64.Re8–+) 64.Re8 (64.Ra5 Ke6–+) 64...Kd5 65.Rd8 Kc6 0–1. GuestMVSH – GuestRRSV, freechess.org, 2020.

7.Ne5 0-0 8.Be2 Bd6 9.0-0 Be5 (9...a6!?=) 10.Be5+= Ne4 11.f4 (11.d3 Nf6 12.c4 a6+-) 11...f6+= 12.Bb2 c5 13.d3 Nd6 14.Nd2 a6 15.c4 ab5 (15...Nf5 16.Rf3=) 16.cb5 (16.ab5 Ra1 17.Ba1 Nf5=) 16...b6 (16...Nf5 17.Rf3=) 17.e4 d4 18.e5 Nf5 19.Ne4?? (better 19.Nc4+=) 19...Ne3-+ 20.Qd2 (20.Qb3 Nf1 21.Rf1 fe5 22.fe5 Rf1 23.Bf1 Qc7-+) 20...Nf1 21.Rf1 (21.Bf1 fe5 22.fe5 Bc8-+) 21...f5 (better 21...Ra4!? 22.Nd6-+) 22.Nd6 Bc8 (22...Ra4 23.Bf3-+) 23.Qe1? (better 23.Ra1!?=+) 23...Ra4-+ 24.Qg3 (24.Qf2 Bd7-+) 24...Qd7 (24...Qe7 25.Bd1 Ra2 26.Bc1-+) 25.Bh5 (25.Bf3 Rb4 26.Qf2 Rb5 27.Nb5 Qb5-+) 25...Rb4 (25...Bb7 26.Rf2-+) 26.Bc1 (26.Ba3 Rb5 27.Nb5 Qb5-+) 26...Bb7 27.Qg5 (27.Ba3 Ra4 28.Ra1 Bd5-+) 27...Bd5 28.Bd2 (28.Be2 Ra4-+) 28...Rb2 29.Be1 (29.Rf2 Bb3-+) 29...Qd8 (29...Rg2 30.Qg2 Bg2 31.Kg2-+) 30.Qg3 (30.Bf7 Kh8 31.Rf2 Qg5 32.fg5 Rb3-+) 30...Qe7 (better 30...Rg2 31.Qg2 Bg2 32.Kg2 Nd7-+) 31.Bf2 Rb3 32.Qh3 (32.Ra1 Nd7-+) 32...Nd7 (32...Ra3 33.Be2-+) 33.Be2? (33.Bh4 Nf6! 34.Ne8 Re8 35.ef6 gf6 36.Qg3 Kf8 37.Be8 Qe8 38.Bf6-+) 33...Rb2 (33...Ra8 34.Bh5-+) 34.Bf3 Rb3?? (34...Bf3 35.Qf3 Kh8 36.Ra1-+) 35.Bd5?? (35.Bh4 Nf6 36.Bd5 ed5 37.Nf5+-) 35...ed5-+ 36.Bh4 (36.Nf5 Qe6 37.g4-+) 36...Nf6?? (better 36...Qe6-+) 37.Qg3 (37.Nf5!? Qc7 38.ef6 gf6 39.Qg4 Kh8 40.Re1+-) 37...Qd7 (37...Qe6 38.Bf6 Rf6 39.ef6 Qf6 40.Ne8+-) 38.ef6 (better 38.Bf6 Rf6 39.ef6+-) 38...Rf6?? (better 38...g6 39.f7 Rf7 40.Nf7 Qf7+=) 39.Bf6+- Kf8 (39...g6 40.Be5 Qd8+-) 40.Be5 Qe7 (40...Ra3 41.Qg5 Kg8 42.Ne8+-) 41.Ra1 (41.Ra1 Qe5 42.fe5 Ra3 43.Ra3 g6 44.Qg5 h5 45.Qg6 c4 46.Qf7) 1-0. alt20 – cjx, lichess.org, 2016.

6.a4 0-0 7.c4 dc4 8.Bc4 c6 9.0-0 Qb6 10.Qb3 cb5 11.ab5 a6 12.Bd4 Bc5 (12...Qc7 13.d3+-) 13.Bc5+- Qc5 14.d4 Qc7 15.Nc3 ab5 16.Ra8 (16.Ra8 bc4 17.Qb4+-; 16.Nb5?! Bb5 17.Bb5 Nc6+-) 1-0. onur604 (2320) - MVPJCS (1980), lichess.org, 2020.

6.a4 0-0 7.c4 c5 8.d4 b6 9.Nbd2 Ne4 10.Bd3 f5 11.Qb3 Nd2 12.Nd2 dc4 (12...cd4!? 13.Bd4 f4+=) 13.Bc4+/- (worse 13.Qc4 a6+=) 13...Qe7 (13...Kh8 14.Be6 Be6 15.Qe6 cd4 16.Bd4+-) 14.Nf3 (14.dc5 Bc5 (14...bc5 15.Rd1+/-) 15.Bd5 ed5 16.Qd5 Be6 17.Qa8 Rd8+=) 14...a5 (14...a6 15.0-0+/-) 15.0-0 Ra7 16.h4 (16.dc5 bc5 17.Rab1 Rb7+-) 16...Kh8 17.Ng5 h6 18.dc5 bc5 19.Ne6 Be6 20.Be6 Qh4 21.f4 Nd7? (21...Qg3!?+/-) 22.Rf3 (better 22.Qd5 Bb8 23.Rad1 Nf6 24.Qc5 Nh7+-) 22...Nf6? (better 22...Qe7+-) 23.Rh3 (23.Bf5?! Ng4 24.Bg4 Qg4+-) 23...Qg4 24.Qd3 Ne4 (24...Bf4 25.ef4 Qf4 26.Bf6 gf6+-) 25.Rh6 1-0. DEFFM – GuestTKGN, freechess.org, 2021.

6.c4 0-0 7.Be2 c6 8.Nc3 cb5 9.cb5 a6 10.a4 ab5 11.ab5 Ra1 12.Qa1 Ne8 13.Qa7 Qc8 14.Qd4 f6 15.0-0 Bc5 16.Qa4 b6 17.Rc1 Qb7 18.Ba3 Ba3 19.Qa3 Nc7 20.Ra1 e5 21.Qa7 Qa7 22.Ra7 Rc8 23.h3 Be6 24.d4 e4 25.Nd2 Nd7 26.Nb3 Kf8 27.Na4 Ke8 28.Rb7 Na8 29.Ra7 Kd8 30.Kf1 g6 31.Ke1 h5 32.Kd2 f5 33.f4 Ke7 34.h4 Kd6 35.Nc1 Nc7 36.Rb7 Na8 37.Na2 Rc7 38.Rc7 Kc7 39.Nb4 Nf6 40.Nc3 Kd6 41.Nc6 Bd7 42.Ne5 Be8 43.Na4 Kc7 44.Nc3 Kb7 45.Kc2 Nc7 46.Kb3 Ng4 47.Ng4 hg4 48.Kb4 Bf7 49.Bd1 Ne8 50.Ne2 Nf6 51.Ng3 Kc7 52.Be2 Kd6 53.Kb3 Ke6 54.Kb4 Be8 55.Kb3 Ng8 56.Kb4 Nh6 57.Kb3 Nf7 58.Kb4 Nd6 59.Bf1 Kf6 60.Be2 Bf7 61.Bf1 Ne8 62.Be2 Nc7 63.Bf1 Ne6 64.Be2 ½–½. Vormann – Michels, 1991.

6.c4 c6 7.a4 a6 8.Qb3 ab5 9.cb5 Qb6 (9...c5 10.Be5 c4 11.Qc3+=) 10.Bf6 gf6 11.Qb2 (11.Qc3 Qd8=) 11...e5+= 12.Nc3 Na6?? (better is 12...e4 13.Nd4 Rg8–/+) 13.a5+– Qc5 (13...Qd8 14.ba6 ba6 15.d4+–) 14.ba6 ba6 15.d4 ed4 (15...Qa7 16.Rb1+–) 16.ed4 Qb4 17.Qb4 Bb4 18.Kd2 0-0 19.Bd3 Rfc8 (19...Bg4 20.Rhb1 Rfb8 21.Nh4+–) 20.Rhb1 c5 (20...Rcb8 21.h3+–) 21.dc5 Bc3 (21...Rab8 22.Rb4 Rb4 23.Nd5 Rb2 24.Kc3 Rc5 25.Kb2 Rd5 26.Ba6+–) 22.Kc3 Rc5 23.Kd2 (23.Kd4 Rc7+–) 23...Bb5 (23...Kg7 24.Rc1 Rc1 25.Rc1+–) 24.Bb5 ab5 25.Nd4 b4 26.Rb4 (26.a6 Rc4 27.Nc2 Rf4+–) 26...Rca5 (26...Raa5 27.Rb8 Kg7 28.g4+–) 27.Ra5 Ra5 28.Rb8 Kg7 29.Nf5 Kg6 30.Ne7 Kg5 31.Rg8 (31.Rd8 Ra2 32.Ke3 d4 33.Rd4 f5+–) 31...Kf4 32.f3 (better is 32.Kd3!? Ra4 33.Nd5 Ke5+–) 32...Ra2 33.Kd3 Ke5 34.Rd8 (34.Nc6 Kd6 35.Nb4 Ra3 36.Kd4 Ra4+–) 34...Ra3 35.Ke2 Ra2 36.Kf1 Rd2 37.Nc6 Ke6 38.f4 Kf5 39.g3 (39.Rh8 Kf4 40.Rh7 Ke3 41.Rh3 Ke4+–) 39...Ke4 (39...Kg4 40.Ne7+–) 40.Re8 (40.h4 Rb2+–) 40...Kf3 41.Re2 Rd1 42.Re1 Rd2 43.Kg1 d4 44.Nb4 (44.f5 Rg2 45.Kh1 Rd2+–) 44...d3+/– 45.Rf1 Kg4 (45...Ke4 46.Nc6+/–) 46.Rf2+/– Rd1 47.Kg2 d2 48.h3 Kf5 49.Kf3 Rb1 50.Rd2 Rb4 51.Rd5 Ke6 (51...Kg6 52.f5 Kg5 53.h4 Kh5 54.Rd3+/–) 52.Rh5 f5 53.g4 (53.h4!?+/–) 53...Rb3+= 54.Kg2 fg4 (54...Rb2 55.Kg3+/–) 55.hg4 Rb2 56.Kg3 Rb3 57.Kh4 White fights for the Initiative 57...f6 (57...Rb1!?+=) 58.Rh7+/– Rb1 (58...Rb4!? 59.Kg3 Rb5+/–) 59.Kh5+– Rb8 (59...f5 60.Kg5 fg4 61.f5 Kd5 62.Kg4+–) 60.Kg6 Rg8 (60...Re8 61.g5+–) 61.Rg7 Rf8 62.f5 Ke5 63.Re7 Kf4 64.Rf7 Rg8 65.Kf6 Rg4 (65...Kg4 66.Ke7+–) 66.Ke6 (66.Rb7 Ke3+–) 66...Rg5 67.f6 Re5 68.Kd6 Rf5 69.Ke7 Re5 70.Kf8 Kg5 71.Kg7 (71.Kg7 Re6 72.Rf8+–) 1–0. Rohde,Angela – Solice,Renate, BL2 Mitte, 1992.

6.c4 c6 7.a4 a6 8.Qc2 ab5 9.c5 (9.cb5 Qe7=+) 9...Bc7 (better 9...Be7!?–/+) 10.ab5= Ra1 11.Ba1 cb5 12.Nc3 0-0 13.Bb5 Ne4 (13...Nc6 14.Be2=) 14.Bd7 (14.Ne4 de4 (14...Bb5?? 15.Neg5 f5 16.Ne6+–) 15.Bd7 ef3+=) 14...Nc3?? (better 14...Nd7 15.Ne4 de4 16.Qe4 Nc5+=) 15.Qc3+– (15.Bc3?! Nd7 16.0-0 e5+= (worse 16...Nc5 17.Bb4 b6 18.d4+–)) 15...Qd7 (15...Qf6 16.Bb5 Qc3 17.Bc3 Nc6+–) 16.Qg7 1–0. GuestTHLW – GuestNPDX, freechess.org, 2019.

6.c4 c6 7.Qb3 0-0 8.Be2 (8.Nc3=) 8...Qe8 (8...dc4 9.Bc4 cb5 10.Bb5=+) 9.0-0 (better 9.Bf6!? dc4 10.Qc4 gf6 11.Nc3+=) 9...dc4=+ 10.Qc4 cb5 11.Qd4 (11.Qd3!? Be7 12.Nc3=+) 11...Qe7–/+ 12.Qh4 e5 (12...a6 13.Nc3–/+) 13.Nc3 a6 14.Bd3 (14.Ng5 h6 15.Nge4 Ne4 16.Qe7 Be7 17.Ne4 f5–/+) 14...h6 (14...Bc6 15.Ne2 Nbd7 16.Ng3–/+) 15.Ne4 Ne4 (better 15...Nc6–/+) 16.Qe4? Pawn e5, live or die! (16.Qe7 Be7 17.Be4 Bc6 18.Bc6 Nc6 19.Ne5 Ne5 20.Be5 Rfc8=+) 16...g6?? (16...f5 17.Qb7 Nc6 18.Bf5–+) 17.Qb7?? (better 17.Be5 Nc6 18.Bd6 Qd6 19.Be2=+) 17...Nc6–+ 18.Ne5 (18.Be4 Ra7 19.Bc6 Rb7 20.Bb7 e4–+) 18...Be5 (better 18...Ne5!? 19.Be5 Be5 20.Rac1 Bh2 21.Kh1–+) 19.Be5 Ne5 (19...Ne5 20.Be2 Qd6–+) 0–1. Lord Cuthbertson (1655) – Brennybhoy (1780), ChessWorld.net, 2007.

6.d4 0-0 7.Bd3 h6 (7...a6 8.a4=+) 8.0-0= Ne4 (8...a6 9.a4=+) 9.c4+= c6 10.c5 Be7 11.a4 f6 (11...b6 12.Qc2+=) 12.Nbd2 a6 (12...f5!?+-) 13.Ne4+- de4 14.Be4 f5 15.Bd3 Bf6? (better 15...ab5!? 16.ab5 Ra1 17.Qa1 cb5+-) 16.Qb3 Qe7 17.Bf5 Kh8 18.bc6 bc6 (18...ef5 19.cb7 (worse 19.cd7 Qd7 20.Rab1 Rd8+-) 19...Ra7 20.Qb6 Ba4 21.Qa7+- (worse 21.Ra4 Rb7 22.Qa5 Rb2=+)) 19.Qb7 ef5 20.Qa8 Be6 21.Bc3 Bc4 (21...Qd8 22.Rfb1+-) 22.Rfb1 Nd7 (22...Qe8 23.Rb7 Be6 24.Rab1+-) 23.Qc6 g5 (23...Qf7 24.Nd2 Bd5 25.Qd6+-) 24.Rb7 Rd8 (24...Rf7 25.Rc1 Kg7 26.Nd2+-) 25.Ba5 (25.Ba5 Nb8 26.Qc7 Qc7 27.Bc7+-) 1-0. DEFFM – Oaklands, freechess.org, 2020.

6.d4 c6 7.a4 0-0 8.Bd3 cb5 9.ab5 Qb6 (9...a6 10.0-0=) 10.Qe2 (10.Ba3 Rc8+=) 10...Rc8 11.0-0 Be8 (11...Na6!=) 12.Nbd2 Qc7 13.Rfc1 Qe7 14.Ra2 (14.c4 Nbd7+/–) 14...b6 (14...a6!?+=) 15.Rca1+/– Rc7 16.e4 de4 17.Be4 (17.Ne4 Nbd7+–) 17...Nd5 18.c4 f5 19.cd5 (worse is 19.Bd5 ed5 20.Qe7 Re7+/–) 19...fe4 20.Qe4 Bb5 21.de6 Nc6 22.Qd5 Be2 23.Ng5 Rd8 24.Qf5 g6 (24...Bd3!? 25.Qf7 Qf7 26.ef7 Rf7 27.Nf7 Kf7+/–) 25.Qf7+– Qf7 26.ef7 Rf7 27.Nf7 Kf7 28.Ne4 (better is 28.d5!? Na5 29.Bc3+–) 28...Be7+/– 29.Bc3 Bd3 30.f3 Nd4 (30...Be4!? 31.fe4 Nd4 32.Bd4 Rd4 33.Ra7 Re4+/–) 31.Ra7+– Ne2 32.Kf2 Nc3 33.Nc3 Kf8 (33...Kf6 34.Ne4 Be4 35.fe4 Bc5 36.Ke2+/–) 34.Ra8 Bc5 35.Kg3 Bd6 36.Kh3 Ra8 37.Ra8 Kf7 38.Ra7 Kg8 (38...Ke6 39.Rb7 Bc5 40.Rh7+–) 39.Rb7 Bc5 40.Na4 Bf2 41.Nb6 Bb6 42.Rb6 Kg7 43.g4 Be2 44.Kg3 Kh6 (44...g5 45.Rb2 Bd1 46.Rd2+–) 45.h4 Kg7 46.Kf4 Bd3 (46...h6 47.Rb7 Kg8 48.Re7+–) 47.Rb7 Kg8 48.Kg5 1–0. Marinc,Damir (2015) – Georgiev,Emil, Kesarovski Georgiev Memorial 7th, 2008.

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 0-0 10.0-0 Bc8 11.Be5 Be5 12.Ne5 Nbd7 (12...Qd6 13.f4=) 13.Nd7 (13.d4 Ne4=) 13...Bd7 14.d4 Ne4 (14...Qe7 15.c4=+) 15.Bd3 Nd6 (15...f5 16.c4=) 16.Nc3 Qh4 (16...Qg5 17.Qa1=) 17.Qa1+= Rc8 18.Qa3 b6 19.Ra1 f6 20.Qb4 Qh5 21.Ne2 (21.Qb3!?+=) 21...Qe8= 22.c4 (better 22.Nc3!?=) 22...dc4-/+ 23.Bc4 Nc4 (worse 23...Nb5 24.Qb3 Kh8 25.h4=+) 24.Qc4 Bb5 25.Qc2 c5 26.Qb2 Bc4 27.Nc3 1-0. Bushwacker (1795) - JenerusJohn (1675), ChessWorld.net, 2007.

6.Be2 a6 7.ba6 Na6 8.0-0 (8.Be5 Qe7=) 8...0-0+= 9.c4 (9.Be5 Qe7+=) 9...dc4 10.Bc4 Bc6 (10...b5 11.Be2+=) 11.Nd4 (11.Ne5 Be5 12.Be5 b5=) 11...Bd5 12.Bd5 (12.d3 Bc4 13.dc4 Nc5+=) 12...Nd5 13.Nb5 (13.Nc3 Nab4+=) 13...Be7 (13...Nab4 14.Qb3+=) 14.d4 (14.Qg4 Bf6 15.d4 Nab4+=) 14...c6 15.N5c3 Nc3 (15...Qb6 16.Qc2+=) 16.Nc3= Nc7 (16...Bd6 17.Qb3=) 17.e4 (17.Qb3 Bd6=) 17...Qd7 (17...f5 18.Qb3+=) 18.Qb3= Rfd8 (18...Rfb8 19.Na4 Qd6 20.Nb6=) 19.Na4 (19.Qb7?? Rdb8 20.Qa8 Na8–+) 19...Rab8 (19...Qe8 20.Rfd1= (20.Qb7? Ra4 21.Rfc1 Rb8 22.Qc7 Rb2–+)) 20.Nb6 (20.Nc5 Qe8=) 20...Qe8 (20...Qd6 21.Rab1=) 21.Rad1 (21.a4 Bd6+=) 21...Bf6 (21...Na8 22.Na8 Ra8 A) 23.Qb7? Rdb8 (23...Ra2?! 24.Qb3 Ra6 25.Ra1 Ra1 26.Ra1=) 24.Qc7 Rb2–+; B) 23.Rfe1=) 22.a4 (22.Rfe1 Na8+=) 22...Be7 (22...Na8 23.a5=) 23.Qc3 (23.a5 Na8+=) 23...Bf8 (23...Na8 24.a5=) 24.Qg3 (24.a5 f5+=) 24...Na8= 25.Nc4 b5 26.ab5 cb5 27.Na5 (27.Ne3 Bd6 28.Qg4 Qf8+=) 27...Nb6= 28.Rc1 Nc4 29.Nc4 bc4 Black gets strong play along the open b–file 30.Qc3 (30.Ba1 Rb3 31.Qg4 Rc8=) 30...Rb3+= 31.Qc2 Qb5 32.Bc3 Rb8 33.h3 (33.Qe2 Bd6+=) 33...h6 (33...Ba3 34.Ra1+=) 34.g3 (34.Rfe1!?=) 34...Ba3 35.Ra1 Bb2 (35...Qh5 36.Kg2–/+) 36.Bb2+= Rb2 37.Qa4 (37.Qc3 Qc6 38.Qe3 R8b3+=) 37...Qa4 38.Ra4 c3 (38...Rc8 39.Rc1 c3 40.Kf1+=) 39.Rc4 ½–½. Nestler,Daniel – Emmel,Francis, Luxembourg–chT, 1993.

6.Be2 a6 7.ba6 Na6 8.Be5 Qe7 =.

6.Be2 c6 7.a4 cb5 (7...a6 8.0-0=) 8.ab5 0-0 9.0-0 (9.Bd4 a6=) 9...Be8 (9...Ne4 10.d3 Ng5 11.Nfd2=) 10.Ne5 (10.Qe1 a6=) 10...Nbd7 (10...a5 11.f4=) 11.f4 Nb6 12.c4 (12.Bd4 Ne4=) 12...dc4 (12...Qc7 13.d3=) 13.Nc4+= Nc4 14.Bc4 Nd5 (14...Be7 15.Qf3+=) 15.Qb3 (15.Qg4 Nf6 16.Qf3 Rc8+–) 15...Bc5 (15...Qb6 16.Nc3 Nf6 17.Ne2+=) 16.f5 Qd6 (better 16...Nb6!?+=) 17.fe6+– fe6 18.Rf8 (18.Nc3 Qd7 19.d4 Bd6 20.Nd5 ed5 21.Bd5 Kh8 22.Rf8 Bf8+–) 18...Kf8 (18...Qf8 19.Bd5 ed5 20.Qd5 Kh8 21.Qb7+–) 19.Nc3 Bf7? (better 19...Qd7+–) 20.Ne4 Qe7 (20...Be3 21.de3 Qb6 22.Bd5 ed5 23.Rf1+–) 21.Nc5 Qc5 (21...b6 22.Nd3 Kg8+–) 22.Ba3 (22.Ba3 Qa3 23.Qa3 Ne7 24.Rf1+–) 1–0. GuestJLXB – GuestRZPB, freechess.org, 2020.

6.Be2 h6 7.c4 (7.Be5 Qe7=) 7...dc4 8.Bc4 c6 9.a4 cb5 10.ab5 Qb6 (10...0-0 11.0-0=) 11.Nc3 (11.Qe2 0-0+=) 11...Bb4 (11...0-0 12.0-0=) 12.Qb3+= Bc3 (12...Bd6 13.Na4 Qd8 14.Bd4+–) 13.Bc3+– Ne4 (13...Qd8!?+–) 14.Bd4 (14.Bg7 Rg8 15.Bd4 Qd8+–) 14...Qc7 (14...Qd8 15.0-0+–) 15.b6 Qc6?? (15...Qc8 16.Ra7 Nc6 17.Ra8 Qa8 18.Bg7 Rg8+–) 16.Ra7 Ra7 (16...0-0 17.Ra8 Nd6+–) 17.ba7 (17.ba7 0-0 18.a8Q+–) 1–0. GuestTDMH – GuestNCMT, freechess.org, 2018.

6.Be5 0-0 =.

7.Bc4 0-0 8.0-0 a6 9.a4 b6 10.Ne5 Be5 (10...c6 11.Nd7 Nfd7 12.Qh5=) 11.Be5+= c5 (11...ab5!? 12.ab5 Ra1 13.Ba1 c6=) 12.Qf3+– Ra7 13.Nc3 ab5? (better 13...Ne8!?+–) 14.ab5+– (14.Nb5?! Bb5 15.ab5 Ra1 16.Ra1 Qd2 17.Bf6 gf6 18.Qf6 Nd7+–; 14.Bb5?! Bb5 15.ab5 Ra1 16.Ra1 Ne8+=) 14...Ra1 (14...Ra5 15.Ra5 ba5 16.Bf6 Qf6 17.Qf6 gf6 18.Ra1+–) 15.Ra1 Nd5?! (15...Be8 16.Qg3 Nh5+–) 16.Ra8 (16.Nd5 ed5 17.Qg3 g6+–) 16...Qg5 (16...Qh4 A) 17.Bb8 Qc4 18.h3 Bb5 (worse 18...Nc3 19.dc3 Qb5 20.Bd6 Ra8 21.Qa8 Be8 22.Bc7=) 19.Nb5 Qb5–/+; B) 17.Rb8?! Qc4 18.Bg7 Re8+–; C) 17.Bd5 ed5 18.Rb8 Rb8 19.Bb8+–) 17.Bd6 (17.Rb8?! Qe5 18.Rf8 Kf8 19.Bd5 ed5 20.Qd5 Qd5 21.Nd5 Bb5+=) 17...Rc8 (17...Re8 18.Bb8 Nc3 19.dc3+–) 18.Rb8 Rb8 19.Bb8 (19.Bd5?! Rd8 20.Bc4 Qh4+–; 19.Nd5?! ed5 20.Bb8 dc4+=) 19...Nc3 20.dc3 Qf5 (20...Qd8 21.Qb7 Be8 22.Ba7+–) 21.Qb7 (better 21.Qd1!? e5 22.e4 Qg4+–) 21...Qb1 22.Bf1 Kf8 (22...Qd1+–) 23.Bd6 (23.Bd6 Kg8 24.Qb8 Bc8 25.Qc8) 1–0. DEFFM – kotobanja, freechess.org, 2017.

7.Bc4 0-0 8.0-0 c6 9.a4 Qe8 10.Bf6 gf6 11.Nc3 a6 12.Qb3 ab5 13.ab5 Ra1 14.Ra1 Qe7 15.Ra7 (15.Ne4 cb5 16.Bb5 Nc6+–) 15...Bc8 (15...cb5 16.Bb5 Nc6 17.Bc6 (worse 17.Rb7 Na5 18.Qa4 Nb7 19.Bd7 f5=+) 17...Bc6 18.Nd4+–) 16.Ne4 Bc5 17.Qc3 Nd7? (better 17...Kg7 18.Ra4 e5+–) 18.bc6 (18.Nc5?! Qc5 19.Qd4 Qd4 20.Nd4 c5+=) 18...Bb4 (18...Ne5 19.Ne5 fe5+–) 19.Qb2 (19.Qb2 f5 20.cd7 fe4 21.Ne5+–) 1–0. DEFFM – GuestYBYF, freechess.org, 2018.

7.Bc4= 0-0 8.0-0 Qe8 9.a4 (9.Bf6 gf6 10.Nc3 Qe7+=) 9...Nd5 (9...e5 10.d4 e4 11.Ne5=) 10.Nc3 Nc3 11.Bc3 c6 (11...Qe7 12.Be5+=) 12.Ng5 cb5 13.ab5 Bb5?? (better is 13...f6 14.Ne4 Be7+/–) 14.Qb1+– g6 15.Bb5 (15.Qb5?! Qb5 16.Bb5 Be7+–) 15...Qe7 (15...Nc6 16.Ne4 Be7 17.Bf6+–) 16.Ne4 f5 (16...Rc8 17.Qd3 Rd8 18.Nf6 Kf8 19.Nh7 Kg8 20.Nf6 Kf8 21.Qe4+–) 17.Nd6 Qd6 18.Bb4 (18...Qb6 19.Bf8 Kf8 20.Qb4 Kg8 21.Qe7 Qb5 22.Qd8 Kf7 23.Rfc1+–) 1–0. b4_player – daribuc, gamecolony.com, 2007.

7.Bc4= a6 8.ba6 Na6 9.Ne5=.

7.Bc4 c6 8.a4 0-0 9.0-0 Ne4 10.d3 (10.Nc3 Ng5 11.Ng5 Qg5+–) 10...Nc5 (10...Nf6!?+–) 11.Nc3+– cb5 (11...b6 12.Qc2+–) 12.ab5 b6 13.Ne4 Ne4 14.de4 Bc5 15.Nd4 (15.Ne5 h6 16.Qf3 Qe7+–) 15...a6 16.Qf3 (16.Qg4 Bd4 17.ed4+– (worse 17.Bd4 e5 18.Qg3 ed4–+)) 16...a5? (16...ab5 17.Nf5 Qg5+– (17...bc4?? 18.Qg4 Qf6 19.Bf6 Ra1 20.Qg7; worse 17...ef5 18.Qg3 Qf6 19.Bf6+–)) 17.Qg3 (17.Nf5 Qg5 (17...ef5?? 18.Qg3 Qf6 19.Bf6+–) 18.h4 Qg6 19.Ng7 Be7+–) 17...Qf6 (17...e5 18.Qe5 Qe7 19.Qg3+–) 18.Ne6 Qb2 19.Nf8 Bf8 20.Qc7 (better 20.Bd5 Qb5 21.Ba8+–) 20...Qf6 (20...a4 21.Qb7 Ra5 22.Qb8 a3+–) 21.Qb7 Bc6 (21...Nc6 22.Qa8 Ne5+–) 22.bc6 Qc6 (22...Nc6 23.Qa8 Ne5+–) 23.Qf7 (23.Qf7 Kh8 24.Qf8) 1–0. GuestRJRV – nexnexnex, freechess.org, 2019.

7.Bc4 Qe7 8.0-0 h6 9.d4 (9.Ne5 c6+=) 9...c5 (9...a6 10.Nc3=) 10.Nbd2 (10.dc5 Bc5 11.Ne5 a6 12.ba6 ba6+=) 10...cd4= 11.Nd4 e5 12.N4f3 e4? (12...0-0 13.Bd3 Rd8 14.Qa4=) 13.Nd4 (13.Bf6 gf6 14.Ne4 Qe4 A) 15.Qd6?! Qc4 16.Nd4 Qd3= (16...Bb5?? 17.Nf5 Qf1 18.Rf1 Bf1 19.Qe7); B) 15.Bd5+–) 13...Bc5 (13...Ng4!? 14.g3 Nf6=) 14.Qc2+– b6? (14...Bd6 15.Ne2 Ng4 16.h3 Bh2 17.Kh1+–) 15.a4 (15.N4b3 Bd6 16.Bf6 gf6 17.Ne4 Be5+–) 15...0-0 (15...Bd6+–) 16.Rac1 (16.Ne4 Bd4 17.Bd4 Ne4+–) 16...Bg4? (16...Bd6!?+=) 17.h3 (better 17.Ne4 Qe4 18.Qe4 Ne4 19.Bd5+–) 17...Bh5? (better 17...Bc8+–) 18.Nf5+– Qd7 (18...Qd8 19.Ne4 Ne4 20.Qe4+–) 19.g4 (19.Ne4!? Ne4 20.Qe4 Re8+–) 19...Bg6 20.Bf6 (20.Ne4 Bf5 21.gf5 Qe7 22.Bf6 gf6 23.Nc5 bc5+–) 20...gf6 (20...Bf5 21.gf5 gf6 22.Qe4 Na6+–) 21.Ne4 Bf5 22.Nf6 (22.gf5?! Qf5 23.Bd5 Nd7 24.Ba8 Ra8 25.Nc5 Qc2 26.Rc2 Nc5+–) 22...Kg7 23.Nd7 (better 23.Qc3!? Bd4 24.Nd7 Bc3 25.Nf8 Be4 26.Rc3 Kf8+–) 23...Bc2 24.Nf8 (better 24.Nc5 bc5 25.Rc2+–) 24...Kf8?? (better 24...Be4+–) 25.Rc2 Nd7 26.Bd5 (26.Rd1 Nf6+–) 26...Rd8 27.e4 (27.Rfc1 Ke7+–) 27...Ne5 (27...Nf6 28.Rfc1+–) 28.Kg2 Rd6 (28...Nd3 29.Kg3+–) 29.f4 Nd3 (29...Ng6 30.a5!+–) 30.Rc3 Nb4 31.Rd1 Rd7 (31...Ke7 32.Kg3+–) 32.Kf3 (32.g5 Kg7+–) 32...Re7 (32...a6 33.ba6 Na6 34.g5+–) 33.a5! Rc7 (33...ba5 34.Rc5 Deflection) 34.ab6 (34.g5 Kg7+–) 34...ab6 35.Rc4 (35.g5 h5+–) 35...Re7 (35...Ra7 36.Rdc1+–) 36.Bc6 (36.g5 h5+–) 36...Kg7 (36...Nc6 37.bc6 Rc7 38.Ra4 Rc6 39.Ra7+–) 37.Rd7 (37.e5 Rc7 38.Be4 Ra7+–) 37...Rd7 38.Bd7 Nd3 (38...f6 39.Bf5+–) 39.e5 Kf8 40.Ke4 (better 40.Bf5 Nb4 41.Ke4+–) 40...Ke7 (40...Nf2 41.Kd5 Ke7+–) 41.Kd3 Kd7 42.f5 (better 42.Rc5 Kd8+–) 42...Ke7 (42...Bf8 43.Rc6 Be7 44.Rh6+–) 43.Ke4 (better 43.Rc5 bc5 44.Kc4 f6+–) 43...Kf8 (43...Ba3 44.Rc6 Ke8 45.Rb6+–) 44.h4 (44.Rc5 Ke8+–) 44...Kg7 (44...Ba3 45.Rc6 Kg7 46.Rb6+–) 45.g5 (45.Rc5 bc5 46.b6 Kg8 47.b7 f6 48.b8Q Kg7 49.Qc7 Kg8 50.ef6 Kf8 51.Qe7 Kg8 52.Qg7) 45...hg5 46.hg5 Kf8 (46...Ba3 47.Rc6+–) 47.e6 (better 47.Rc5 bc5 48.b6 Ke8+–) 47...fe6 48.fe6 (better 48.f6 Kf7 49.Rc5 bc5+–) 48...Kg7 (48...Ba3+–) 49.Kf5 Kf8 50.Kf6 (50.Rc5 bc5 51.b6 Ke7 52.b7 Kd6 53.b8Q Kc6 54.e7 Kd5 55.e8Q Kc4 56.Qe2 Kd5 57.Qe4) 50...Be7 51.Kg6 Bc5 (51...Bd6 52.Rc6 Ba3 53.Rb6+–) 52.Rf4 (better 52.Rc5 bc5 53.Kf6+–) 52...Ke7 53.Kf5 Bd6 54.Re4 Bc5 Plans Ra4 55.g6 Kf8 56.Re2 (56.g7 Kg8 57.Kg6 Bf8 58.Rh4 Bg7 59.e7 Bh6 60.e8Q Bf8 61.Qe6) 56...Ke7 (56...Be7 57.Rc2 Bd6 58.Rc8 Ke7 59.g7 Bf4 60.g8Q Be5 61.Qd8) 57.g7 Bd4 (57...Ke8 58.g8Q Ke7 59.Qf7 Kd6 60.Qd7) 58.Kg6 (58.Kg6 Be3 59.g8Q Kd6 60.e7 Kc5 61.Rc2 Kd6 62.e8Q Bc5 63.Qge6 Kc7 64.Q8c8; 58.g8Q Bc3 59.Qc8 Kd6 60.Qc6 Ke7 61.Qd7 Kf8 62.Qf7) 1–0. GuestTGGC – GuestXPYK, freechess.org, 2018.

7.0-0 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Ne5 cb5=+ 12.Nd7 Qd7 (12...Nbd7 13.Bb5 Qc7 14.f4=) 13.Bf6 gf6 14.Bd3 (better 14.Nc3=) 14...e5 (better 14...f5!?=) 15.Nc3+– e4 (15...Qe6 16.Nd5! f5 17.Nc3+–) 16.Bb5 (16.Nd5!? Bh2 17.Kh2 Qd6 18.Kh1 ed3 19.Qg4 Kh8 20.Qf5+–) 16...Qe6+= 17.Qh5 f5 18.f3 Be5 (18...Bb4 19.fe4 Bc3 20.dc3 fe4 21.Rf5+–) 19.fe4+– Bc3 20.ef5 Qf6 21.dc3 Qc3 22.Qg5 Qg7 23.Qe7 f6 (23...Nc6 24.Qb7 Nb4 25.Qc7+–) 24.Qd6 Qf7 25.Rf3 (25.Rd1!? Nc6+–) 25...Kh8 (25...Nc6 26.Bc6 bc6 27.Qc6+–) 26.Rf4 Nc6 (26...Rc8 27.Rd4+–) 27.Bc6 bc6 28.Qc6 Rg8 (28...Qe7 29.Rf3 Qe5 30.Qc5+–) 29.Rd4 Qg7 (29...Qe7 30.Qe6 (30.Qd5?! Qe3 31.Kf1 Re8+–; 30.Rd5?! Qe3 31.Kf1 Re8 32.Qf6 Kg8=) 30...Qe6 31.fe6+–) 30.Qd5 Qg5 (30...Re8 31.Qc6 Qe7 32.e4+–) 31.Qe4 h5 (31...Rb8 32.Ra4+–) 32.Rd7 (32.c4 Rb8+–) 32...h4 (32...Qg4 33.Qg4 Rg4 34.Rf7+–) 33.c4 (33.Rd4 Kg7+–) 33...h3 34.g3 Qh5 35.c5 (better 35.Rd4 Rb8+–) 35...Rb8 (35...Re8 36.Qf4 Ra8+–) 36.c6 Re8 37.Qh4 (37.Qd4 Qf5 38.c7 Rc8 39.Qh4 Kg8 40.Qc4 Kh8 41.Rd8 Kg7+–) 37...Qh4 38.gh4 Re3 39.c7 Rc3 40.Rd8 Kg7 41.c8Q Rc8 42.Rc8 Kh6 43.Kf2 (43.Rg8 Kh7 44.Rg6 Kh8 45.Rf6 Kg8 46.Rg6 Kf8 47.h5 Ke7 48.h6 Kf7 49.h7 Ke7 50.h8Q Kf7 51.Qh7 Kf8 52.Rg8) 43...Kh5 (43...Kh7 44.h5 Kh6 45.Kf3 Kg5 46.Ke4 Kg4 47.h6 Kg5 48.h7 Kh6 49.h8Q Kg5 50.Rg8) 44.Kg3 Kh6 45.Rc7 Kh5 46.Rh7 1–0. DEFFM – GuestLYSR, freechess.org, 2018.

7.0-0 c6 8.a4 a6 9.Ne5 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nd7 Qd7 13.Bf6 gf6 14.Nc3 Kh8 (14...b4!? 15.Nb5 Nc6=) 15.Nb5+= Rg8 16.f4 e5 (16...Be7 17.d4+=) 17.Qa1 (better 17.Nd6 Qd6 18.Bh5+/-) 17...ef4?? (better 17...Nc6+/-) 18.Qf6+- Rg7 19.Nd6 Qh3 (19...Qe6 20.Qf4 Kg8+-) 20.Nf7 Kg8 21.Qd8 Kf7 22.Rf4 Kg6 (22...Qf5 23.Rf5 Ke6 24.Rf6 Ke5 25.Qd6 Ke4 26.Qe6) 23.Qf6 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

7.0-0 Ne4 8.d3 Nf6 9.c4 dc4 (9...a6 10.Nc3=) 10.dc4 a6 11.a4 (11.Be5 Be5 12.Ne5 ab5 13.cb5 Nd5=) 11...Ne4 (11...Qe7 12.Nbd2=) 12.Qd4 Nf6 (12...Qf6 13.Qf6 Nf6 14.Bf6 gf6 15.Nc3+=) 13.e4 (better 13.c5 Be7 14.Rd1+–) 13...b6? (better 13...e5 14.Ne5 Re8+–) 14.e5+– Bc5 15.Qh4 Ne8?? (15...Nd5 16.Qe4 ab5 17.cd5 Ra4 18.Ra4 ed5 19.Qd5 ba4+–) 16.Qd8 Nf6 (16...c6 17.Qh4 h6 18.Ba3 ab5 19.cb5 Ba3 20.Na3+–) 17.Qc7 ab5 18.ef6 gf6 19.Qg3 Kh8 20.Bf6 1–0. GuestTTSD – crepaccio, freechess.org, 2018.

7.0-0 h6 8.h3. GuestHJQM – JustMicgo, freechess.org, 2017.

7.a4 a6 8.c4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 c6 12.Qb3 cb5 13.Bb5 Qa5 14.Bd7 Nbd7 15.Bf6 Nf6 16.0-0 (16.Qb7?? Rb8 17.Qb8 Bb8-+) 16...b5 (16...Rb8 17.Rc1=+) 17.Rc1 (17.Nd4 Qc7=) 17...b4 18.d4 Rb8 19.Nbd2 Qa3 20.Qb1 Nd5 (20...Qa8 21.Nc4 Bc7 22.Nb2=) 21.Nc4 (21.Ng5 f5 22.Rc6 Be7 23.Ne6 Ne3+=) 21...Qa6= 22.Ng5 g6 23.Qd3 b3 24.Ne4 Be7 (better 24...Bc7!?=) 25.Ned2+/- Qa2 Black prepares b2 26.Rb1 b2 27.g3 Nb4 28.Qc3 Nd5 29.Qc2 Ba3 30.e4 Nb4 (30...Nf6 31.f3 (31.Na3?! Qa3 32.Nc4 Qa7=) 31...Rd8 32.Na3 Qa3 A) 33.Rb2?! Qe3 34.Kg2 Qe2 35.Kh3 Kg7= (35...Rd4? 36.Rb8 Kg7 37.Qc5+-); B) 33.Nb3+/-) 31.Qc3 Rc8 32.Kg2 e5? (better 32...Ra8+-) 33.Qa3 Rc4 (33...Qa3 34.Na3 ed4+-) 34.Qa2 Na2 35.Nc4 1-0. onur604 (2320) - bbh (2185), Casual Rapid game, lichess.org, 2021.

7.a4 c6 8.0-0 b6 9.c4+= Re8 (9...dc4 10.Bc4 Bc8 11.Na3+–) 10.d4 c5 (10...a6 11.Nc3+–) 11.Ne5 (11.Nc3 cd4 12.Qd4 e5+–) 11...Bc8+= 12.a5 Be5?? (better 12...Nbd7 13.ab6 Qb6+=) 13.de5+– Nfd7 14.cd5 ed5 (14...Bb7 15.de6 Re6+–) 15.Qd5 Qc7 (15...ba5 16.Qa8 Qb6 17.Bf3+–) 16.Qa8 Bb7 (16...ba5 17.f4 Nb6+–) 17.Qa7 ba5 18.Bf3 Ne5 19.Qb7 Qb7 20.Bb7 Re7 21.Be5 (better 21.Rd1 Rd7 22.Rd7 Ned7 23.Ra5 Kf8+–) 21...Re5 22.Rd1 g6 1–0. guest774 – keoki, chessclub.com, 2019.

7.Be5 =.

6.c4 a6 7.cd5 ed5 8.Nc3 =.

6.c4 Bg7 7.a4 (7.d4 0-0=) 7...0-0 8.Na3 (8.d4 a6=) 8...b6 (8...a6 9.d4=) 9.cd5 (9.Be5 a6=) 9...Nd5 (9...ed5!? 10.d4 Ne4=) 10.Bg7+= Kg7 11.d4 c6 (11...a6 12.Bc4+=) 12.Qb3 (12.Bd3 a6+=) 12...Qe7 (12...a6 13.Bc4+=) 13.Rb1 (13.e4 Nf4+=) 13...Rc8 (13...cb5 14.ab5 a5 15.ba6 Na6 16.e4+=) 14.Bc4 a6 15.Bd5 (15.ba6!? Na6 16.0-0+=) 15...cd5 16.ba6 (16.0-0 ab5 17.Nb5 Bb5 18.ab5 Qc7=) 16...Ra6 (16...Ba4!? 17.Qb2 Qc7–/+) 17.Nb5= Nc6 18.0-0 Na5 19.Qd1 Nc4 20.h4 (20.Ne5 Ne5 21.de5 Rc4+=) 20...Ra5 (20...Rca8 21.Qe2 Ra4 22.Nc3–/+) 21.Ne5 (21.h5 Rca8–/+) 21...Bb5 22.Rb5 Rb5 (22...Ne5 23.de5 Qh4 24.Rb6 Ra4 25.Qf3–+) 23.ab5 Ne5 24.de5 Qh4 25.Qa1 Rc5 26.Qa6 Qb4 (26...Qd8!?–+) 27.Qb6–/+ Rb5 ½–½. Raine,Marcus – Zivanovic,Andjelija, Box Hill, 2000. (=1.Nf3 Nf6 2.b4 d5 3.e3 e6 4.b5 Bd7 5.Bb2 g6)

6.Be2 Bg7 7.0-0 0-0 8.c4 dc4 9.Bc4 c6 10.a4 cb5 11.ab5 Qc7 12.Qb3 Rc8 13.Na3 (13.Rc1 Qd8+/–) 13...Be8 (13...a5 14.Be5 a4 15.Qb2+= (15.Bc7 ab3 16.Be5 b2 17.Bb2 Ra3 18.Ra3 Rc4+–)) 14.Rac1 (14.Rfc1 Qd8+/–) 14...Qe7 (14...Qd8 15.d4+=) 15.Nc2 (15.Be2 Rd8+=) 15...Nbd7 (15...a6 16.Ncd4 ab5 17.Nb5=) 16.Ba3 (16.d4 Nb6 17.Bd3 Nfd5+=) 16...Qd8 17.Rfd1 (17.d4 Nb6 18.Bd3 a6=) 17...Nb6= 18.Be2 Rc7 (18...a6 19.ba6 ba6 20.d4=) 19.Nce1 (19.d4 Ne4 20.Na1 Rac8 21.Rc7 Rc7=) 19...Rac8 (19...Qd5 20.Qb4 Rac8 21.Rc7 Rc7 22.Bb2+=) 20.Rc7+= Rc7 21.Rc1 (21.Bb2 Qd5 22.Qb4 Qa2=) 21...Ne4 (21...Qd5 22.Qb4 Rc1 23.Bc1=) 22.Rc7+= Qc7 23.Bb2 (23.Qb4 f5+=) 23...Bb2 24.Qb2 Nd5 (24...Nd6 25.Ne5=) 25.Nd3 (25.Qd4 Nd6 26.Qa7 Bb5 27.Qa8 Kg7 28.Bb5 Nb5=) 25...Qc4 The isolani on b5 becomes a target (25...Qa5 26.Nde5=) 26.Nf4 (26.Nd4 Qc7 27.Bf3 Ndf6+=) 26...Qa4 (26...Qb4!? 27.Qb4 Nb4=) 27.Nd5+= ed5 28.h3 (28.b6 ab6 29.d3 Nc5+=) 28...a6 (28...Qa5 29.Bf1+=) 29.ba6+/– ba6 30.d3 Nc5 31.Qc3 (31.Qf6 Ne6+/–) 31...Qc6 (31...Ne6!?+=) 32.d4+/– Na4 (32...Ne4 33.Qc6 Bc6 34.Ba6+/–) 33.Qc6 (33.Qa5 Nc3 34.Ba6 Ne4+–) 33...Bc6+/– 34.Ba6 f6 35.Nd2 Kf7 36.f3 (36.Nb3 Ke6+/–) 36...Nc3 37.Kf2 g5 (37...h5 38.Nb3+/–) 38.Bd3 (38.g4 Bb5 39.Bb5 Nb5+/–) 38...Nd1 (38...h5 39.Nb3+/–) 39.Ke2+– Nc3 40.Ke1 h5 41.e4 (41.Nb3 Na4+–) 41...de4+/– 42.fe4 g4 (42...f5 43.e5+/– (worse is 43.ef5 Bg2 44.h4 gh4=)) 43.d5 (43.Kf2 Ke7+–) 43...gh3+/– 44.gh3 (44.dc6? h2 45.c7 h1Q 46.Nf1 Qh4 47.Kd2 Ne4 48.Be4 Qf2 49.Kc3 Qc5 50.Kd3 Qc7–+) 44...Bd7 45.h4 Na4 (better is 45...f5!?+/–) 46.Be2+– Nc5? (46...Bg4+–) 47.Bh5 (47.Bh5 Ke7 48.Ke2+–) 1–0. d2d4 – Marceli, playchess.de, 2002.

6.a4 c6 7.c4 (7.Be2 a6=) 7...Bb4 (7...a6 8.cd5 ed5 9.bc6 Nc6 10.Be2=) 8.Be2 (8.cd5 ed5 9.Be2 0-0=) 8...0-0 (8...dc4 9.Bc4 a6 10.Qb3=) 9.0-0 a6 (9...Qe7 10.Ne5=) 10.Qb3 Ba5 (10...Qe7 11.bc6 dc4 12.Bf6 (worse 12.cb7 cb3 13.ba8Q Bc6 14.Qc6 Nc6=) 12...gf6 13.Qc4 (worse 13.cb7 cb3 14.ba8Q Bc6 15.Qc6 Nc6=+) 13...Nc6 14.Nc3+=) 11.Ne5 (11.ba6 b6+=) 11...ab5 (11...cb5 12.cb5 Bc7 13.Rc1+=) 12.ab5 cb5 13.cb5 b6 (13...Ne4 14.Bd4+=) 14.Rc1 Bc8 (14...Ne4 15.Nc3+–) 15.Nc6 Nc6 16.bc6 Ne4 (16...Qc7 17.Bf6 gf6 18.d4+–) 17.Bd4 f6?? (better 17...Qh4 18.g3 Qg5+–) 18.Bb6!+– Bb6 (18...Bb6 19.Ra8 Pinning (19.Ra8 Deflection); 18...Qb6 19.Qb6 Combination) 19.Ra8 Qc7 20.d4 f5 (20...Re8 21.Na3+–) 21.Na3 f4 (21...Nd6 22.Rb1 Qc6 23.Qb6 Qa8 24.Qd6+–) 22.Nb5 Qf7 (22...Qd8 23.ef4 Rf4 24.c7+–) 23.f3 Nd2 24.Qc3 fe3 (24...Nc4 25.Bc4 dc4 26.Qc4+–) 25.Qe3 Nb3 (25...Nc4 26.Bc4 dc4 27.Nd6+–) 26.Qb3 Ba6 (26...Qf4 27.Rd1 Qe5+–) 27.Ra6 (27.Ra6 Bc7 28.g3+–) 1–0. GuestSWHX – GuestBCJP, freechess.org, 2018.

6.Be2 Bd6 7.a4 0-0 8.0-0 a6 9.c4 dc4 (9...ab5 10.ab5 Ra1 11.Ba1=) 10.Bc4+= ab5 11.ab5 Ra1 12.Ba1 c6 13.Nc3 cb5 14.Nb5 Bb5 15.Bb5 Ne4 (15...Na6 16.Qb1+=) 16.Qb1 Nc5 (16...Nf6 17.e4 Be7 18.Bd3+–) 17.Qb2+– f6 18.Rb1 (18.d4 Nca6+–) 18...b6 (18...Nc6!?+–) 19.Bc4 Bc7? (better 19...Qe7+–) 20.d4 Na4 (20...Ne4 21.Be6 Kh8+–) 21.Be6 (21.Qc2!? Qd7+–) 21...Kh8 22.Qc2 Qd6 23.Bb3 (23.Qa4?! Qe6 24.Qb5 Qd7+–) 23...b5 24.Qf5 (24.g3!? f5 25.Nh4 Bd8 26.Nf5 Qc7+–) 24...Qd7 25.Qg6 Qe8 (25...Nb6 26.Bc2 f5 27.Nh4+–) 26.Nh4 Nc6 (26...Nd7 27.Bc2 Qg6 28.Ng6 Kg8 29.Nf8 Nf8 30.Rb5 Nb6 31.Bb3 Kh8+–) 27.Bc2 Qg6 (27...f5 28.Bf5 Qg6 29.Ng6 Kg8 30.Be6 Rf7 31.Rc1 Bh2 32.Kh2+–) 28.Ng6 Kg8 29.Nf8 Kf8 30.Rb5 Nb6 31.Rc5 Nb4 (31...Bh2 32.Kh2 Ne7 33.e4+–) 32.Rc7 Nc2 33.Rc2 1–0. GuestGHFP – GuestT, freechess.org, 2019.

6.a4 ab5 7.ab5 Ra1 8.Ba1 Ne4 9.Nf3 c5 10.bc6 (10.Nc3 Nd6+=) 10...bc6 (10...Nc6 11.Nc3=) 11.Bd3 Nf6 (11...Na6 12.Be4 de4 13.Ng5+=) 12.Ne5 c5 13.c4 Bd6 14.g4 (14.0-0+/–) 14...Ke7?? (better is 14...Nc6=) 15.g5+– Be5 16.Be5 Ne8 (better is 16...Bc6!? 17.0-0 Na6+/–) 17.cd5+– ed5 18.Qb3 c4 (18...Nc6 19.Qd5 Qb6 20.Nc3+–) 19.Qb4 (19.Bc4!? f6 20.gf6 gf6 21.Qb4 Ke6 22.f5 Ke5+–) 19...Ke6 20.Bf1 (better is 20.Bc4 f6 21.gf6 (21.Qb8?! Qb8 22.Bd5 Kd5 23.Bb8 Kc6+/–) 21...gf6 22.f5 (22.Qb8?! Qb8 23.Bd5 Kd5 24.Bb8 Kc6+/–; 22.Bb8?! dc4 23.f5 Kf5+–) 22...Ke5 23.Rf1 Bf5 24.Bd5+–) 20...Nc6? (20...Na6 21.Qa3 Nac7 22.Bh3 f5 23.gf6 Kf7 24.Bd7 Qd7 25.fg7 Ng7+–) 21.Bh3 f5 22.gf6 Kf7 23.Qb7 gf6 24.Bd7 (24.Qd7?! Qd7 25.Bd7 Ne5 26.fe5 fe5 27.Rf1 Nf6+–) 24...Ne7 25.Be8 Re8 26.Bd4 Qb8 (26...Qa8 27.Qd7+–) 27.Qb8 Rb8 28.Nc3 (28.Kf2 Nc6+–) 28...Ke6 (28...Nf5 29.Kf2+–) 29.Ke2 Rg8 30.Kf2 Nf5 31.Ne2 (31.Rb1 Nd4 32.ed4 Rd8+–) 31...Nd6 (31...Ra8 32.Rb1 Ra6 33.Rb7+–) 32.Ng3 Ra8 (32...Nb5 33.Ba1 Ra8 34.Rb1+–) 33.Rb1 Ra6 34.Rb8 h6 (34...Kf7 35.f5+–) 35.Rf8 Nf7 36.f5 Ke7 37.Bc5 Nd6 38.Rh8 Kf7 (38...Kd7 39.Rh6 Nf7 40.Rh7+–) 39.Rh7 (39.Rh6 Rc6 40.Bd6 Rd6 41.Rh7 Kf8+–) 39...Kg8 (39...Ke8 40.Bd6 Rd6 41.Rh6+–) 40.Rh6 Kg7 (40...c3 41.dc3 Nb5 42.Bb4+–) 41.Rg6 Kf7 42.Bd6 Rd6 43.Ke2 1–0. Posch,Sandor (1965) – Reiter,Laszlo (1795), Szekesfehervar HUN, City Ch, 2014.

6.a4 Bd6 7.Nf3 0-0 8.Be2 ab5 (8...c5 9.0-0=) 9.ab5 Ra1 10.Ba1 Qe8 (10...c6 11.0-0=) 11.Nc3 (11.Bf6 gf6 12.Nc3 Kh8+=) 11...Ne4= 12.Ne4 (12.Qb1 f6=) 12...de4 13.Ng5 Bb5 (13...e5 14.Ne4 ef4 15.Nd6 cd6 16.ef4 Bb5 17.Kf2=) 14.Bb5+= Qb5 15.Qh5 Qf5 16.g4 Qg6 17.Qg6 hg6 18.Ne4 Nc6 19.Ke2 Be7 20.Rb1 Ra8 21.g5 (21.Bc3 b6+=) 21...Ra4 (21...b5 22.Bc3 b4 23.Ra1 Ra1 24.Ba1+=) 22.d3 Ra2 23.Kd2 b6 (23...Nb4 24.Bb2+=) 24.Bc3 Ba3 (24...Kf8 25.h3+=) 25.h3 (25.Ra1 Ra1 26.Ba1 b5+=) 25...Kf8 26.h4 Kg8 (26...Be7 27.Rb2 Rb2 28.Bb2+=) 27.Ra1 Ra1 28.Ba1 Kf8 (28...b5 29.Nc3 Na7 30.e4+=) 29.Ke2 (29.c4 Bb4 30.Ke2 Be7+/–) 29...Kg8 (29...b5 30.Nc3 Na7 31.Kd2+=) 30.c4+/– Bc5 (30...Bc1!?+/–) 31.Nc5+– bc5 32.Bc3 Kh7 (32...Kf8 33.Be5 Ne5 34.fe5+–) 33.Kf3 Nb8 34.Be5 Na6 35.d4 (35.Ke2 c6+–) 35...cd4+/– 36.ed4 (36.Bd4 Nb4+/–) 36...c6 37.Bd6 Kg8 38.Ke4 White plans d5 38...f6 39.d5 ed5 (39...cd5 40.Kd4+/–) 40.cd5+/– cd5 41.Kd4 Kf7 42.Kd5 1–0. Becker,Godelind – Thieme,Joerg, DESC, 2006.

5.a4 Bd6 6.Nf3 e5 7.c4 (7.Be2 e4 8.Nd4 0-0=+) 7...Qe7 (7...e4 8.Nd4–/+) 8.Be2 (8.cd5 Nd5 9.a5 e4=+) 8...e4 (8...dc4 9.Bc4 Nb6 10.Bb3=+) 9.Nd4=+ Qe5 (9...Nb6 10.Na3=+) 10.Qc2= Qg5 (10...0-0 11.f4 Qe8 12.0-0=) 11.Kf1 (11.0-0 dc4 12.Bc4 Ne5=) 11...Qg6 (11...dc4 12.Nc3 0-0 13.Ne4 Ne4 14.Qe4= (14.Bc4? Nb6 15.Ba2 Nf6–+)) 12.d3 (12.cd5 Nd5 13.f3 f5=+) 12...Nc5–/+ 13.de4 de4 14.Nc3 0-0 (14...Bg4 15.Bg4 Ng4 16.Ba3–/+) 15.Rd1 Be6 16.Ne6=+ fe6 17.Rd2 Qf5 18.Nd1 Rf7 19.Bf6 Qf6=+ 20.g3 Raf8 21.Kg2 Qh6 22.Re1 Rf2?? 23.Nf2= Rf2 24.Kf2 Qh2 25.Kf1 Qh3 26.Kg1 Qg3 27.Kf1 Qh3 28.Kg1 Bh2 29.Kf2 Qg3 30.Kf1 Qg1# 0–1. Kamminga – Arens, BEL–NLD, 1993.

5.a4 Be7 6.Ne2 0-0=+ 7.f4 b6 (7...c5 8.bc6 bc6 9.Nd4=+) 8.Ng3 Bb7 9.Be2 h6 (9...c5 10.0-0=) 10.0-0= Nh7 (better 10...c5=) 11.Bg7?? (better 11.f5=) 11...Kg7-+ 12.Bd3 f5 13.Nh5 (13.Nc3-+) 13...Kg6?? (13...Kh8 14.Ng3-+) 14.Ng3?? (14.Qg4 Ng5 15.fg5 hg5 16.Nf4 Kf6 17.Ne6 Ke6 18.Bf5 Rf5 19.Qf5 (worse 19.Rf5 Ne5 20.Qh3 g4 21.Re5 Ke5 22.Qg3 Kf6=) 19...Kd6 20.Nc3+-) 14...Ndf6 15.Nc3 Bb4 16.Nce2 Be7 (16...c5 17.bc6 Bc6 18.Bb5-+) 17.Nd4 (17.Nc3 Kg7-+) 17...Qd7 (17...Kf7 18.a5-/+) 18.Rc1? (18.Ne6 Qe6 19.Bf5 Qf5 20.Nf5 Kf5=) 18...Bc5?? (18...Kf7 19.c4-+) 19.c4?? (better 19.Ne6 Qe6 20.Bf5 Qf5 21.Nf5 Kf5 22.Qf3=) 19...Bd4-+ 20.ed4 dc4 21.Rc4 (21.Bc4 Qd4 22.Kh1 Rfe8-+) 21...Rg8 22.Qc2 (22.Re1 Nf8-+) 22...Rac8 (22...Nd5 23.Be2-+) 23.Be2 (23.Re1 Kf7-+) 23...Bd5 (23...c6 24.Re1-+) 24.Rb4 (24.Rc3 c6-+) 24...Ne4 (24...c6 25.Qb1-+) 25.Bh5 (25.Ne4 Be4 26.d3 Bd5-+) 25...Kg7 (25...Kf6 26.Bf3 Ng3 27.hg3-+) 26.Bf3 (26.Ne4 fe4 27.Qc3 Nf6-+) 26...Ng3 27.hg3 Kh8 (27...c6 28.Bd5 cd5 29.Qd1-+) 28.Kh2 (28.Bd5 ed5 29.Rb3 Nf6-+) 28...Nf6 (better 28...c6 29.Bd5 cd5 30.Qd1-+) 29.Rbb1 (29.Bd5 Nd5 30.Rc4 a6-+) 29...Be4 (29...Qg7 30.Qc3 Qg3 31.Kg1 Qg2 32.Bg2 Rg2 33.Kh1 Rcg8 34.Rg1 Rg1 35.Kh2 Rb1 36.Qf3 Bf3 37.a5 Rh1) 30.d3 Bf3 31.Rf3 Nd5 (31...Ng4 32.Kg1-+) 32.Qb2 (32.Rc1 Kg7-+) 32...Kh7 33.Rh1 Rg6 34.Kg1 (34.Rc1 c6-+) 34...Rcg8 (34...c6 35.Kh2-+) 35.Kf2 (35.Kh2 a6!-+) 35...Qd6 (35...c6 36.Qa1-+) 36.Qc2 (36.Rc1 a6!-+) 36...Nb4 (36...Qb4 37.Rh3-+) 37.Qc4 (37.Qc3-+) 37...Nd5 (37...Rg3 38.Rh2 Nd5 39.Qc1 Rf3 40.Kf3-+) 38.Re1?? (38.Qc2 Qb4 39.Kf1-+) 38...Re8 (38...Rg3 39.Rg3 Rg3 40.Re5-+) 39.Re5 (39.Rc1 Ra8-+) 39...Re7 40.Qc1 (40.Kg1 Kg7-+) 40...Qb4 (better 40...Nf6 41.Qc3-+) 41.Qd1 (41.Qc4 Qa3-+) 41...Nc3 (better 41...Qd4!? 42.Kf1 Reg7 43.Qe1-+) 42.Qe1 Qb2 (42...Qd4!? 43.Kf1-+) 43.Ke3 (43.Kf1 Na4 44.Rf5 Qd4 45.Qe5-+) 43…Nd5 (43...Nd5 44.Rd5 ed5) 0-1. Akrapovik (1605) – Alistassio, lichess.org, 2020.

5.c4 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Bb4 9.Nf3 0-0 10.Be2 Qe7 11.Qb3 dc4 12.Bc4 Bd6 13.g3 (13.d4 Nb6=) 13...Nc5 14.Qc2 e5 15.Ng5 h6 16.Nf3 e4 17.Nd4 Bh3 18.Ne2 Ra8 19.Bc3 Ra4 20.Bb3? (20.Bf6 Qf6 21.d4 Rc4 22.Qc4 Nd3 23.Kd2 Bb4 24.Nbc3 Qf2 25.Qb4 Nb4 26.Rb1–+) 20...Nd3–+ 21.Kd1 Ng4 (22.Bf7 Kf7 23.Qa4 Ngf2 24.Kc2 Nh1–+) 0–1. Hasler,Ueli – Pegoraro,Erivaldo (1890), CiF, 2005.

5.c4 Bb4 6.cd5 ed5 7.Nf3 0-0 8.Nc3 Qe7 9.d4 Ne4 10.Qc2 c6 11.bc6 bc6 12.Bd3 Re8 13.0-0 Bb7 14.Rab1 Ndf6 15.Be4 de4 16.Nd2? (better is 16.Ne5=) 16...Ba6–+ 17.Rfc1 Bd3 18.Qa4 Bb1 19.Rb1 Rac8 20.a3 Bc3 21.Bc3 Nd5 22.Ba1 Qc7 23.Rc1 Re6 24.Nb3 Qb7 (better is 24...Rh6 25.h3 f5–/+) 25.Nc5= Qb5 26.Qa7 (better is 26.Qc2!? Rh6 27.Qe4=) 26...Re7–/+ 27.Qa6 Rd8 (27...Qa6!? 28.Na6 Ra8–/+) 28.Qb5 cb5 29.Rb1 Rb8 30.a4 b4 31.Bb2 b3 32.Ba3 Ra7 33.g3 f5 34.Rb2 Kf7 35.Rb3 Rb3 36.Nb3 Ra4 37.Bc5 Ra2 38.Kg2? (better is 38.Kf1–+) 38...Ne3 39.Kh3 Ng4 (39...Ng4 40.d5 Nf2 41.Bf2 Rf2–+) 0–1. Jokmin,Alex – Trevis,Robert, RN–2009–0-00243, 2009.

5.c4 b6 6.cd5 Nd5 7.Nc3 N7f6 8.Nd5 Nd5 9.Nf3 Nf6 10.Be2 Be7 11.Nd4 Bb7 12.Bf3 Qc8 13.Bc6 Bc6 14.Nc6 Bd8 15.0-0 0-0 16.Qf3 Nd5 (16...a6 17.a4+–) 17.e4 Nf6 18.Rfc1 Qd7 19.d3 Re8 20.Ne5?? (20.Rc4 Be7+–) 20...Qe7 (better 20...Qb5 21.Rab1 Qa5=) 21.a4+– Qf8 (21...Nd7!?+–) 22.Nc6+– Be7 23.Qg3 (23.Ne7 Qe7 24.Bf6 Qf6 25.Qf6 gf6 26.Rc7 Red8+–) 23...Nh5 24.Qg4 Nf6 25.Qg3 g6?? (25...Nh5 26.Ne7 Qe7+–) 26.Qc7 (better 26.Ne7 Qe7 27.Qe5+– (27.Qc7?! Nh5+–)) 26...Bd8?? (26...Nh5 27.Na7 Bg5 28.Nc6 Bc1 29.Bc1+– (29.Rc1?! Ra4 30.Qb6 Nf4+–)) 27.Qf4 (better 27.Nd8 Red8 28.Bf6 Rd3 29.a5 ba5 30.Ra5+–) 27...Nh5 28.Qf3 Ng7? (28...Bg5 29.Rc2 Qd6 30.a5+–) 29.Ne5 (29.Ba3!? Be7 30.Ne7 Re7+–) 29...Qe7 (29...f5 30.Nd7 Qd6 31.Bg7 Qd7 32.Be5 fe4 33.Qe4+–) 30.Ng4 f5 (30...Qh4+–) 31.ef5 Nf5 (31...h5 32.Qa8 hg4 33.f6+–) 32.Nf6 (32.Nf6 Qf6 33.Bf6 (33.Qa8?! Qb2 34.Qa7 Rf8=) 33...Bf6 34.Rab1+–) 1–0. GuestSTHN – nexin, freechess.org, 2017.

5.c4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7).

5.c4 g6 6.cd5 ed5 7.Be2 Bg7 8.f4 0-0 9.Nf3 b6 10.Nc3 Bb7 11.Qc2 Re8 12.Nd4 Nc5 13.0-0 h5 (13...a6 14.a4+=) 14.f5+/– g5 15.h3 Bh6 (15...g4 16.a4+=) 16.Qd1 g4 17.hg4 hg4 18.Bg4 Nd3 19.Bc1 (19.Ba3 a6+=) 19...Ne5 20.Bf3 Kh7 (20...a6 21.Be2=) 21.Kf2 (21.a4 a6+/–) 21...Rh8 (21...Nd3!? 22.Ke2 Nf4 23.Ke1 Nd3 24.Ke2 Nf4 25.Ke1 Nd3 26.Ke2=) 22.Rh1 Kg7 23.Rh3 (23.Ke2 Ne4 24.Qe1 Qg5+/–) 23...Qd6 (23...a6 24.Ke2+=) 24.a4 (24.Ke1 a6+/–) 24...Rae8 25.Rg3 Kh7 26.Ba3 (better is 26.d3!?+/–) 26...Nd3=+ 27.Ke2 Qg3 28.Kd3 Ne4 29.Kc2 (29.Qc2 a6=+) 29...Nc3–/+ 30.Kc3 Kg8 (30...Bg7 31.Rc1–/+) 31.Kb3 (31.Kd3 Bg7 32.Bb2 a6=+) 31...Bg7–/+ 32.Bb2 Qg5 (32...Qd6 33.Qc2–/+) 33.Qc2=+ Be5 34.a5 Rh6 (34...ba5 35.Ra5 Qf6 36.Qc5=+) 35.Ra4 Bd4 (35...ba5 36.Nc6 Bc6–/+) 36.Rd4+/– (36.Bd4?! Bc8=) 36...Rh4 37.Qc7 (37.Bd5?! Rd4 38.Bb7 Rd6=+) 37...Rd4 38.Bd4 (38.ed4?! Ba8 39.Qd7 Rd8=) 38...Ba8 39.Qd7 (39.Qh2!? Kf8 40.Qh8 Ke7 41.f6 Kd8+–) 39...Rd8 40.Qc7 (40.Qa7 Qf5 41.Qb6 Rc8+/–) 40...ba5 (better is 40...Re8!?=) 41.Qa5 Rc8 42.g4 (< 42.Qa7 Qf5 43.Ka3 Qd3 44.Bc3 Qb5=) 42...Qe7 43.Qa6 (better is 43.Qa7!? Bb7 44.Qb6+–) 43...Qc7+= 44.Qf6 (< 44.Qa7 Qc4 45.Ka3 Qb5–/+; 44.Ba7 Qc2 45.Ka3 Qd3 46.Ka4 Rc4 47.Ka5 Qa3 48.Kb6 Qc5 49.Ka5 Qb4 50.Kb6 Rc6) 44...Qc2 45.Ka3 Qd3 46.Bc3 d4 47.Qg5 Kf8 48.Qh6 Ke8 49.Bc6 Bc6 50.Qh8 Kd7 51.bc6 Rc6 52.Qd4 Qd4 53.Bd4 (< 53.ed4 Rc8–/+) 53...a6 54.Kb3 Rc1 55.e4 Re1 56.Be3 (56.d3!?+=) 56...Rh1 (57.g5 Rh4=) =. Otte,Marco – Karsowidjojo,Herman, Wag.Intcomp, 1998.

5.d4 c6 6.bc6 bc6 7.Nd2 Qa5 8.c3 Bd6 9.Bd3 0-0 10.Ngf3 h6 11.c4 Rb8 12.Qc2 Ba3 13.Bc3 Bb4 14.Bb4 Rb4 15.c5 Ba6 16.0-0 Bd3 17.Qd3 Rfb8 18.Nb3 Qc7 19.Nfd2 a5 20.a4 Ra8 21.f4 Nb8 22.Nf3 Na6 23.f5 Ne4 (better is 23...ef5!? 24.Ne5 g6+=) 24.fe6+= fe6 25.Ne5 Rb3 26.Qb3 Nd2 27.Qc2 Nf1 28.Rf1 (28.Kf1?! Rf8 29.Kg1 Nb4+=) 28...Rf8?? (28...Qe7 29.Qg6 Rf8 30.Rf8 Kf8 31.Nc6 Qd7+–) 29.Rf8 Kf8 30.Qh7 Nb4 (30...Qe5 31.Qh8 Kf7 32.de5 Nc5+–) 31.Qh8 Ke7 32.Qg7 Kd8 (32...Ke8 33.Qg8 Ke7 34.Qf7 Kd8 35.Qf8) 33.Qf8 1–0. Griffiths,Hywel (1690) – Kitchen,Michael J (1730), BCF–chT4, 2008.

5.Be2 Nc5 6.Nf3 Bd6 7.c4 (7.Be5 0-0=) 7...c6 (7...dc4 8.Bc4 a6 9.Nc3=) 8.d4 Ncd7 (8...Nce4 9.0-0=) 9.c5+= Bc7 (9...Be7 10.0-0+=) 10.Nbd2 (10.bc6 bc6 11.Qa4+=) 10...b6 (10...0-0!?+=) 11.bc6+– Nb8 (11...Nf8 12.Ba3+–) 12.Rc1 Nc6? (better 12...Ba6+–) 13.Bb5 (better 13.cb6 ab6 14.Rc6 Ra2+–) 13...0-0?! (13...Bd7 14.Bc6 Bc6 15.cb6 ab6 16.Rc6 Ra2+–) 14.Bc6 Rb8 15.Ba3 bc5 (15...b5 16.Bb2+–) 16.Bc5 (worse 16.dc5 Ba5+–) 16...Rb2 (16...Bd6 17.Ba7 Rb2 18.Bc5+–) 17.Bf8 (17.Qa4 Bd6 18.Qa3 Bc5 19.Qb2 Bd6+–) 17...Qf8 18.Qa4 Ne4 (18...a6 19.Ne5+–) 19.Ne4 de4 20.Be4 Bd6 (20...Bb7 21.Bb7 Rb7 22.0-0+–) 21.0-0 (21.Qa7 f5 22.Bc6 Ba3+–) 21...Rb4 (21...Bb7 22.Bb7 Rb7 23.Rb1+–) 22.Qc2 (22.Qc2 Bb7 23.Bh7 Kh8 24.Be4+–) 1–0. DEFFM – GuestZTFL, freechess.org, 2018.

5.Nf3 a6 6.c4 (6.Nc3 ab5 7.Bb5 Bd6=) 6...c6 (6...dc4 7.ba6 b6 8.Bc4 Ba6 9.Ba6 Ra6 10.Qc2=) 7.a4 (7.bc6 bc6 8.Nc3 e5=) 7...Bb4 8.Nc3 (8.bc6 bc6 9.Be2 Rb8=+) 8...0-0=+ 9.Be2 Re8 (9...ab5 10.ab5 Ra1 11.Qa1 dc4 12.Bc4=) 10.Qb3 (10.cd5 ed5 11.0-0 ab5 12.ab5 Ra1 13.Qa1 Qe7=) 10...Ba5 (10...Bd6 11.d4=) 11.d4 dc4 12.Bc4 c5 (12...Nb6 13.bc6 bc6 14.Ne5=) 13.0-0 (13.Rd1 ab5 14.ab5 cd4 15.Rd4 Qb6=) 13...cd4 14.Nd4 Nc5 15.Qc2 Bd7 (15...e5 16.Nf3=) 16.Nde2 Qc7 17.Rac1 Rac8 18.Ba3 ab5 19.Nb5= Qe5 20.Ned4 Red8= 21.Bb2 Qb8 22.Nf3 Nce4 23.Be5 Qa8 24.Qa2 Bb5 25.Bb5 Nd2 26.Nd2+= Rd2 27.Rc8 Qc8 28.Qa1 Qd8 29.Qc1 Ng4 30.Bg3 h5 31.h3 Nh6 32.Qc5 Nf5+= 33.Bf4 g5 34.Be5?? Rd5–+ 35.Qc2 Re5 36.e4? Ng7 37.Rd1 Qc7 38.Qb2 Re4 39.Qf6 Qe5 –+. Zylla,Johannes – Wuttke, BS–Kreismeisterschaft, 1992.

5.Nf3 Bb4 6.Be2 Qe7 7.c4 dc4 8.Bc4 0-0 9.0-0 e5 10.d3 e4 11.de4 Ne4 12.Qc2 Ndc5 13.Rd1 Bg4 14.h3 Bf3 15.gf3 Ng5 16.Kg2 Rfe8 17.Nc3 Bc3 18.Bc3 Nge6 19.f4 b6 (19...a6 20.ba6 Na6 21.f5+/–) 20.Bd5 Rad8 21.a4 Rd6 22.Bc6 Red8 23.Rd6 Rd6 24.f5 Ng5 25.Bd4 Nge4 26.Rg1 Rd4 27.ed4 Qg5 28.Kh1 Qf5 29.Rg2 Nd3 30.Kg1 Ng5 31.Rg3 Nh3 32.Kf1 Nhf2 33.Rf3 Qe6 34.Qe2 Qe2 35.Ke2 Kf8 36.Bd5 (36.Rf2?! Nf2 37.Kf2 Ke7+/–; 36.Rd3?! Nd3 37.Kd3 f5=) 36...f6 37.Be6 (37.Rf2?! Nf2 38.Kf2 Ke7+/–; 37.Rd3?! Nd3 38.Kd3 f5+=) 37...g6 38.Bc4 Nb2 39.Rf6 Ke7 40.Rc6 Nh3 41.Rc7 Kd6 42.Rc6 Ke7 43.Bb3 h5 44.Rc7 Kf6 45.Rf7 Kg5 46.d5 Na4 47.Ba4 Nf4 48.Rf4! Kf4 49.d6 g5 50.d7 Kg3 51.d8Q (51...Kg4 52.Qd4 Kf5 53.Bc2 Ke6 54.Bb3 Ke7 55.Qe5 Kd7 56.Be6 Ke7 57.Bf5 Kf7 58.Qe6 Kg7 59.Qe7 Kg8 60.Qh7 Kf8 61.Bg6 a5 62.Qf7) 1–0. marekt – David Lonsdale, ChessWorld.net, 2004.

5.Nf3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 Nbd7).

5.Nf3 g6 6.d4 Bg7 7.c4 c6 8.a4 Ne4 9.c5 (9.Be2 dc4 10.Bc4 Qa5 11.Nbd2=) 9...Ndc5 10.Qc2 Qa5 11.Nbd2 Qb4 12.Be2 (12.Ba3!! Qc3 (12...Qa5 13.Bc5+–) 13.Qc3 Nc3 14.Bc5+–) 12...Bd7 13.0-0 cb5 14.Ne4 Ne4 15.ab5 Rc8 16.Qb1 Bb5 17.Bb5 Qb5 18.Ra7 Qb6 19.Qa2 0-0 20.Rb1 Rc2 21.Ra8 Rf2 22.Ne5 Qc7 23.Qa3 Qc2 0–1. Plock – Bigalke, 1996.

5.f4 c5 6.bc6 bc6 7.Nf3 Be7 (7...Rb8 8.Be5 Ne5 9.fe5=+) 8.Be2 (8.Nc3 c5=) 8...0-0 (8...Rb8 9.Qc1=+) 9.0-0 (9.Nc3 Ba6=) 9...a5 (9...Rb8 10.Be5 Ne5 11.fe5=+) 10.a3 Qb6 11.Qc1 Rb8 12.Bd4 c5 13.Be5 Ne5 14.Ne5 (14.fe5 Ne4=+) 14...Ne4 (14...Nd7 15.Nd7 Bd7 16.c4-/+) 15.a4 (15.d3 Nd6=+) 15...c4 16.d3 (16.Bf3 Nc5-/+) 16...cd3 17.cd3 Nc5 (17...Bc5 18.Rf3 Bd4-/+) 18.d4? (better 18.Nd2 Ba6 19.Rb1=+) 18...Nb3-+ 19.Qb2 Na1 20.Qa1 Qb2 (20...f6 21.Nd3-+) 21.Qb2 Rb2 22.Bb5 Bb4 (22...Bb7!? 23.Rc1 Rc8 24.Rc8 Bc8 25.Nc3-+) 23.Nd3 Re2?? (better 23...Rb3-+) 24.Nb4+- Re3 25.Nc6 Bb7 (25...f6 26.Na5 e5 27.fe5 fe5 28.de5 Re5 29.Nc6+-) 26.Na5 Ba8 27.Nc6?? (better 27.g3!? Rc8+-) 27...Re4 (27...Bc6 28.Bc6 Re4 29.a5+=) 28.g3 (better 28.Ne7!? Kh8 29.Rd1+-) 28...Bc6+= 29.Bc6 Rd4 30.Bb5 g6 (30...Rc8 31.Kf2+=) 31.Nc3 Rc8 32.Na2 (better 32.Ne2 Rd2 33.Ra1+=) 32...Rc2-/+ 33.Nc1 Rdd2 34.Re1? (34.Ne2 Re2 35.Be2 Re2=+) 34...Rh2?? (34...Rg2 35.Kh1 Rh2 36.Kg1 Rhg2 37.Kh1 Rg3 38.Ne2-+) 35.Nd3? (better 35.Ne2 Rh5 36.Nd4=) 35...Rcg2-+ 36.Kf1 Rg3 37.Ne5 f6 38.Nd7 Kf7 39.Re2? (better 39.Nc5-+) 39...Rf3 40.Kg1 Rhh3 (40...Re2!? 41.Be2 Rf4 42.Nc5-+) 41.Kg2 (41.Nc5 Re3-+) 41...Rhg3 42.Kh2 h5 43.Rc2 (43.Nc5 Re3-+) 43...h4 44.Be2?? (44.Rc7 Rf4 45.Nc5 Kg8 46.Ne6 Rf2 47.Kh1-+) 44...Rf2 45.Kh1 1-0. ErdalPekcan (1705) - amirgloo (1785), lichess.org, 2020.

5.f4 Bc5 6.Nf3 0-0 7.Bd3 a6 (7...c6 8.bc6 bc6 9.0-0=) 8.ba6 b6 9.Qe2 Be7 (9...Nb8 10.a7 Ra7 11.0-0=) 10.0-0 Nc5 11.Bb5 Ba6 12.Ba6 Na6 (< 12...Ra6 13.d4 Na4 14.Qa6 Nb2 15.Ne5+–) 13.d3 Nc5 (13...Nd7 14.Nd4=) 14.Nbd2 Na4 15.Bd4 (15.Be5!?=) 15...c5=+ 16.Be5 Nd7 17.Nb1 b5 18.c4 b4 (18...f6 19.Bc3 b4 20.Bd2–/+) 19.cd5 ed5 20.a3 b3 21.e4 (21.Nfd2!?–/+) 21...Ne5 22.fe5 (better is 22.Ne5 c4 23.d4–+) 22...b2 23.Ra2 Qb6 24.ed5 c4 (24...Qb3 25.d6 Bd8 26.Qe4–+) 25.Rf2 cd3 26.Rb2 de2 27.Rb6 Nb6 28.d6 Bg5 29.Re2 Bf4 30.g3 Bc1 31.Nd4 Ba3 32.Na3 Ra3 33.Re1 Ra2 34.Nc6 Nd7 (35.Rf1 Rfa8–+) 0–1. guest3672 – guest1919, ICC, 2005.

5.f4 c6 6.Nf3 Be7 (6...a6 7.bc6 bc6 8.Nc3=) 7.Be2 (7.bc6 bc6 8.Nc3 Rb8=) 7...0-0 (7...cb5 8.Bb5 0-0 9.0-0=) 8.0-0 (8.a4 c5=) 8...Ne4 (8...cb5 9.Bb5 a6 10.Be2=) 9.Qe1 (9.a4 a6=) 9...Bf6 (9...cb5 10.Bb5 Qc7 11.Nc3=) 10.c3 (10.Bf6 Qf6 11.d4 cb5 12.Bb5 Rd8=) 10...Qb6 (10...cb5 A) worse is 11.Bb5 Qb6 12.Na3 Nd6 13.Bd7 Qb2 (13...Bd7?! 14.Rb1+=) 14.Bc8 Qa3–+ (14...Rac8?! 15.Qc1 Qc1 16.Rac1+=); B) 11.Ba3 Re8 12.d3+=) 11.a4 cb5 (11...Nd6 12.Ba3 c5 13.d4=) 12.a5 (12.ab5!? Rd8 13.Ba3=) 12...Qc7+= 13.Bb5 a6 (13...Ndc5 14.Ra2+=) 14.Be2 b5 (14...Nec5 15.Qd1+=) 15.d3 (15.ab6 Nb6 16.Ba3 Rd8=) 15...Nec5+= 16.Qg3 (16.Nd4 Rd8+=) 16...Na4 (16...Nb3!? 17.Ra2 Na5–/+) 17.Ba3+= Re8 (17...Bc3 18.Rc1 Qa5 19.Nc3 Nc3 A) 20.Bf8?? A1) 20...Nf8?! 21.Qe1 Ne2 22.Qe2=; A2) worse is 20...Kf8 21.Qh4 (worse is 21.Ra5 Ne2 22.Kf2 Ng3 23.Kg3 Rb8+=) 21...Ne2 22.Kf1 Nc1 23.Ra5+–; A3) 20...Ne2 21.Kf2 A31) 21...Ng3?! 22.Ra5 Kf8 23.Kg3+=; A32) worse is 21...Kf8 22.Qh4 (worse is 22.Ra5 Ng3 23.Kg3 Rb8+=; 22.Ke2?! Qb4=) 22...Nc1 23.Ra5+/–; A33) 21...Nf8?! 22.Ra5 Ng3 23.Kg3=; A34) 21...Qa1 22.Bg7 Qg7 (22...Qc1?! 23.Qg5 Nf4 24.ef4 Qf4 25.Qf4 Kg7 26.Qg5 Kf8 27.Qd8 Kg7 28.Qg5 Kh8 29.Qh5+=) 23.Qg7 Kg7 24.Ke2 a5–+; B) 20.Kf2+=) 18.Bb4= Bb7 (18...Nc3? 19.Nc3 Bc3 20.Rfc1+–) 19.d4 (19.Ra2 Ndc5= (19...Nc3? 20.Nc3 Be7 21.Be7 Re7 22.Nb1+–)) 19...Nb8 (19...Be7 20.Ra3=) 20.Bd3 (20.Ne5!?=) 20...Nc6+= Exerts pressure on the isolated pawn 21.Qh3 Threatening mate: Qxh7 21...g6 (21...h6 22.Qg3+=) 22.Ng5 Bg5 (22...h5 23.Qg3+=) 23.fg5= Nb4 (23...Na5? 24.Ba5 Qe7 25.Rf6+–) 24.cb4 Nb2 (24...Qe7 25.Bc2=) 25.Be2 Qe7 26.Nd2 (better is 26.Na3=) 26...Qb4?? (better is 26...e5 27.Qf3 Rac8=) 27.Rf7!+– h5 28.Bh5?? Kf7+= 29.Bg6 Ke7 30.Qh7 Kd6 31.Be8 Re8 32.Qb7 Qd2 33.Qa6 Ke7 34.Qb7 Kd6 35.Qb6 Ke7?? 36.Qc7 (36.Qc7 Kf8 37.Rf1 Kg8 38.Qf7 Kh8 39.Qe8 Kg7 40.Qf8 Kh7 41.Qh6 Kg8 42.Rf8#) 1–0. Hegyhati – Kovacs,Laszlo, Hungary, 1955.

6.bc6 bc6 7.Nf3 (7.Be2 Bd6 (7...Rb8 8.Rb1 Bd6 9.Nf3 0-0 10.g3 Qc7 11.0-0 e5 12.Nh4 Nc5; 7...Qc7 8.Rb1 Bd6 9.Nf3 Rb8 10.0-0 0-0 11.h3 h6 12.d4 e5; 7...Bb7 8.Nf3 Bd6 9.Nd4 a6 10.0-0 c5 11.Nf3 0-0 12.Rb1 Rb8; 7...e5 8.Nf3 Bd6 9.0-0 0-0 10.Rb1 Rb8 11.Nh4 g6 12.Nf3 Qc7) 8.Nf3 Rb8 9.Rb1 0-0 10.0-0 Qc7 11.g3 e5 12.d3 Re8; 7.Rb1 Bd6 (7...Rb8 8.Nge2 e5 9.Ng3 Nc5 10.d4 ed4 11.ed4 Nce4 12.Nce4 de4; 7...e5 8.Nh3 Rb8 9.Be2 Bd6 10.0-0 0-0 11.f4 h6 12.fe5 Ne5; 7...Qc7 8.Nf3 Bd6 9.g4 h6 10.Rg1 Rb8 11.h4 Nc5 12.Ba3 Rb1) 8.Nf3 Rb8 9.Be2 0-0 10.0-0 e5 11.Ba1 Rb1 12.Qb1 Qc7) 7...Bd6 (7...Rb8 8.Rb1 Bd6 9.Bd3 e5 10.Be2 0-0 11.0-0 h6 12.h3 Qc7; 7...e5 8.Qc1 Rb8 9.Ba3 e4 10.Nd4 Ne5 11.Be2 Be7 12.0-0 0-0; 7...Qc7 8.Rb1 Bd6 9.g3 Rb8 10.Bg2 0-0 11.0-0 e5 12.d3 Nc5; 7...Nc5 8.Rb1 Bd6 9.Ba3 0-0 10.Be2 Nce4 11.Bd6 Qd6 12.0-0 e5; 7...Bb7 8.Be2 Bd6 9.0-0 0-0 10.Rb1 Qc7 11.d4 Rab8 12.Qd3 h6; 7...Bc5 8.Rb1 0-0 9.Be2 Rb8 10.0-0 e5 11.d4 Bd6 12.de5 Ne5; 7...Be7 8.Be2 Rb8 9.Rb1 0-0 10.Nd4 Bb7 11.0-0 c5 12.Nf3 Qa5) 8.Be2 (8.Rb1 0-0 9.Bd3 h6 10.e4 Ne5 11.Ne5 Be5 12.0-0 Qd6) 8...a5 (8...0-0 9.Rb1 Rb8 10.0-0 Qc7 11.h3 h6 12.Nd4 Nc5) 9.0-0 (9.Nd4 Qc7 10.f4 Ba6 11.0-0 0-0 12.a3 Rfb8) 9...Ba6 (9...Qc7 10.Rb1 0-0 11.d4 Ba6 12.Bd3 Rfb8) 10.Nd4 (10.Rb1 0-0= 11.h3 Qc7 12.Ba6 Ra6) 10...Qc7 (10...0-0 11.Rb1 Qc7 12.f4 Rfb8) 11.f4 0-0 12.Na4 (12.Rf3 Rab8) 12...c5 (12...Be2=+) 13.Nb5 Bb5 14.Bb5 c4 15.Bd7 Nd7 16.Qg4 Nf6?? (better 16...g6=) 17.Bf6+– g6 18.Qh4 Be7 (18...Rfb8+–) 19.Be7 f5 (19...Rfe8 20.Bf6 Qd6 21.Rab1+–) 20.Bf8 Rf8 21.Rab1 Qc6 22.Nc3 Rf7 (22...Qc7+–) 23.Rb8 Kg7 24.Qd8 a4 25.Rf3 Qd7 (25...Qe8 26.Qe8 Kf6 27.Nd5 Kg7 28.Qg8 Kh6 29.Rh3) 26.Qh8 Kh6 27.Rh3 1–0. usingprogram – parishilton, internet, 2011.

6.Nf3 Qa5 A) 7.Be2 Bd6 8.h3 0-0 9.0-0 e5 10.d3 d4 11.Ne4 Ne4 12.de4 Nf6; B) 7.g3 Bd6 8.Be2 0-0 9.0-0 e5 10.d3 d4 11.Ne4 Bc7 12.ed4 cd4; C) 7.h3 e5 (7...Bd6 8.Be2 0-0 9.0-0 e5 10.d3 d4 11.Ne4 Bc7 12.c4 Ne4; 7...Nb6 8.Be2 Bd6 9.0-0 0-0 10.d4 c4 11.a3 Bd7 12.Ne5 Bb5; 7...c4 8.Be2 Bd6 9.0-0 Nc5 10.d3 cd3 11.cd3 Bd7 12.Rc1 Rc8; 7...h6 8.Be2 Bd6 9.0-0 0-0 10.d4 b6 11.Rb1 Re8 12.Qd2 Bb7) 8.Qe2 Bd6 9.e4 d4 10.Nd5 0-0 11.c3 Re8 12.c4 Nd5; D) 7.Qb1 e5 (7...Bd6 8.Be2 e5 9.g4 h6 10.Nh4 Nb6 11.f3 d4 12.ed4 ed4; 7...h6 8.Be2 Bd6 9.0-0 0-0 10.Qe1 b6 11.h3 Bb7 12.d3 Rac8; 7...Nb6 8.Bd3 Bd6 9.a4 e5 10.Ne2 d4 11.ed4 ed4 12.c3 0-0; 7...c4 8.Be2 Bd6 9.0-0 0-0 10.d3 Nb6 11.Qe1 Qb4 12.Rb1 Qc5; 7...Be7 8.Be2 e5 9.0-0 d4 10.ed4 cd4 11.Nd1 Bd6 12.c3 0-0) 8.Ne2 Qc7 9.Ng3 e4 10.Nh4 Ne5 11.Be5 Qe5 12.f4 ef3; E) 7.a3 Bd6 (7...h6 8.Be2 Bd6 9.0-0 0-0 10.d3 a6 11.ba6 Ra6 12.a4 Qb4) 8.Be2 e5 9.g4 h6 10.Nh4 g6 11.0-0 d4 12.Na2 0-0; F) 7.Bd3 Bd6 (7...h6 8.Rc1 Bd6 9.0-0 0-0 10.a3 c4 11.Be2 a6 12.Nd4 Nc5; 7...c4 8.Be2 Bd6 9.0-0 Nc5 10.d3 cd3 11.cd3 Bd7 12.Rc1 Rc8) 8.0-0 0-0 9.a4 e5 10.e4 c4 11.Be2 de4 12.Ng5 Nc5; G) 7.g4 h6 (7...Ng4 8.Rg1 Ngf6 9.Bh3 Rg8 10.Qe2 Bd6 11.a4 Kf8 12.Qd3 Nb6; 7...Bd6 8.g5 Ng4 9.h3 Nge5 10.Ne5 Ne5 11.f4 Ng6 12.h4 h6) 8.Be2 Bd6 9.Rg1 e5 10.g5 hg5 11.Ng5 Nb6 12.Rg2 Bf5; H) 7.Rb1 e5 (7...c4 8.Be2 Bd6 9.0-0 0-0 10.h3 a6 11.ba6 Ra6 12.d3 Rb6; 7...Bd6 8.Be2 0-0 9.0-0 e5 10.a3 d4 11.Na2 Nb6 12.ed4 cd4; 7...Nb6 8.Bd3 Bd6 9.e4 de4 10.Be4 a6 11.0-0 0-0 12.Qe2 ab5) 8.b6 e4 9.Nh4 c4 10.ba7 Ra7 11.Be2 d4 12.ed4 g5.

6.Nf3 Nb6 A) 7.d4 Bd6 (7...Qc7 8.Be2 Bd6 9.0-0 cd4 10.Qd4 e5 11.Qh4 Bg4 12.a4 0-0; 7...Bd7 8.a4 cd4 9.Qd4 Rc8 10.Nd2 Bc5 11.Qh4 d4 12.Nce4 Ne4; 7...cd4 8.Qd4 Bd6 9.Bd3 Nbd7 10.Qh4 0-0 11.0-0 h6 12.Rac1 Re8; 7...h6 8.a4 Nbd7 9.Be2 Bd6 10.0-0 0-0 11.a5 Qc7 12.g3 Re8) 8.Be2 0-0 9.0-0 cd4 10.Qd4 Qc7 11.a4 e5 12.Qh4 Bg4; B) 7.Ne2 Nc4 (7...Bd6 8.Nf4 d4 9.Nd3 Na4 10.Qc1 Nb2 11.Qb2 de3 12.fe3 0-0; 7...Qc7 8.a4 Bd6 9.Bf6 gf6 10.g3 Rg8 11.Nf4 Bd7 12.a5 Nc4; 7...Na4 8.Be5 Ng4 9.Bf4 Be7 10.h3 Nf6 11.Ng3 0-0 12.Be2 Bd7; 7...Bd7 8.Nf4 Bd6 9.a4 0-0 10.g3 a6 11.Ne5 ab5 12.Nd7 Nbd7) 8.Bf6 Qf6 9.Nc3 Na3 10.Be2 Bd6 11.0-0 0-0 12.e4 c4; C) 7.Bd3 Bd6 (7...h6 8.a4 Bd6 9.a5 Nbd7 10.0-0 0-0 11.Ba3 Qe7 12.Qc1 e5; 7...h5 8.0-0 Bd6 9.a4 0-0 10.a5 Nbd7 11.Be2 c4 12.Ng5 g6) 8.a4 0-0 9.0-0 c4 10.Be2 Nbd7 11.d3 cd3 12.cd3 Nc5; D) 7.a4 d4 (7...Bd6 8.a5 Nbd7 9.Be2 0-0 10.0-0 e5 11.Nh4 d4 12.Na4 g6; 7...h6 8.a5 Nbd7 9.g3 Bd6 10.Bg2 c4 11.0-0 Nc5 12.d3 cd3; 7...a5 8.ba6 ba6 9.a5 Nbd7 10.Bd3 e5 11.e4 c4 12.Be2 Rb8) 8.ed4 cd4 9.Ne2 d3 10.cd3 Qd3 11.Nc3 Qg6 12.d4 Bb4.

6.Nf3 Bd6 A) 7.Bd3 c4 (7...0-0 8.0-0 e5 9.e4 c4 10.Be2 d4 11.Nd5 Nd5 12.ed5 Nb6; 7...Qa5 8.0-0 0-0 9.Be2 e5 10.d3 d4 11.Ne4 Bc7 12.a4 Ne4) 8.Be2 0-0 9.0-0 Nc5 10.d3 cd3 11.cd3 Bd7 12.Rc1 Qb6; B) 7.g4 0-0 (7...h6 8.Be2 0-0 9.Rg1 e5 10.g5 hg5 11.Ng5 c4 12.d4 cd3; 7...Ng4 8.Rg1 h5 9.Be2 0-0 10.h3 Ngf6 11.Ng5 h4 12.a4 Qa5; 7...Qe7 8.g5 Ne4 9.h4 0-0 10.Na4 c4 11.d3 Ndc5 12.Nc5 c3) 8.g5 Ne4 9.Rg1 c4 10.d3 cd3 11.cd3 Nc3 12.Bc3 Nc5; C) 7.d3 e5 (7...h6 8.Be2 0-0 9.0-0 Qa5 10.Qd2 b6 11.h3 Bb7 12.a4 Rfe8; 7...0-0 8.Be2 e5 9.0-0 Nb6 10.Nd2 a6 11.a4 ab5 12.ab5 Bd7; 7...Ne5 8.Be2 0-0 9.0-0 Bd7 10.Ne5 Be5 11.f4 Bd6 12.a4 Qc7; 7...Qa5 8.Qd2 Ne5 9.Be2 Bd7 10.a4 0-0 11.Ne5 Be5 12.f4 Bc7; 7...a6 8.a4 Qa5 9.Qd2 0-0 10.Be2 b6 11.0-0 Bb7 12.g3 g6) 8.Nd2 Nb6 9.Be2 0-0 10.0-0 Be6 11.a4 d4 12.Nce4 Ne4; D) 7.Be2 0-0 (7...e5 8.0-0 0-0 9.d3 Nb6 10.Nd2 Be6 11.Bf3 a6 12.a4 ab5; 7...h6 8.0-0 0-0 9.d3 e5 10.Nd2 Nb6 11.a4 Be6 12.Bf3 a6; 7...Qa5 8.0-0 0-0 9.d4 Qc7 10.Qd3 cd4 11.ed4 h6 12.g3 b6; 7...Qe7 8.0-0 0-0 9.a4 e5 10.a5 e4 11.Nh4 g6 12.f4 d4; 7...b6 8.0-0 0-0 9.h3 Bb7 10.d3 Qc7 11.Qd2 h6 12.g3 d4; 7...c4 8.0-0 0-0 9.d3 cd3 10.cd3 Nc5 11.Rc1 Bd7 12.d4 Nce4; 7...Qc7 8.0-0 0-0 9.d3 b6 10.Qd2 Bb7 11.g3 h6 12.Rfe1 e5) 8.0-0 e5 9.d3 d4 10.Ne4 Ne4 11.de4 Nf6 12.ed4 cd4.

6.Nf3 e5 A) 7.Be2 e4 (7...Bd6 8.0-0 0-0 9.d3 Nb6 10.Nd2 Be7 11.a4 d4 12.Nce4 Nbd5; 7...h6 8.0-0 Bd6 9.d3 0-0 10.Nd2 Nb6 11.a4 Be6 12.Bf3 a6) 8.Ng5 h6 9.Nh3 d4 10.Na4 Qa5 11.c4 d3 12.Bg4 Bd6; B) 7.Na4 Bd6 (7...e4 8.Nh4 Nb6 9.Nb6 ab6 10.Be2 g5 11.g4 h5 12.f4 d4; 7...Qc7 8.Nh4 Nb6 9.Nb6 ab6 10.c4 Be6 11.Qc2 Bd6 12.cd5 Nd5) 8.Be2 0-0 9.0-0 Qc7 10.Nh4 Nb6 11.Nb6 ab6 12.c4 d4; C) 7.h3 e4 (7...Be7 8.Na4 e4 9.Ne5 Qc7 10.Ng4 0-0 11.c4 Qd6 12.d4 cd4; 7...Bd6 8.Be2 e4 9.Nh4 Nb6 10.d3 g5 11.de4 gh4 12.Nd5 Nbd5) 8.Nh2 Bd6 9.Ng4 Qa5 10.d4 0-0 11.dc5 Bc5 12.Qd2 b6; D) 7.d3 Bd6 (7...Be7 8.Be2 d4 9.Ne4 Qa5 10.Qd2 Qb5 11.c3 de3 12.fe3 Ne4; 7...d4 8.Ne4 Be7 9.Be2 Qa5 10.Qd2 Qb5 11.c3 de3 12.Nf6 Bf6) 8.Be2 0-0 9.0-0 Nb6 10.Nd2 a6 11.a4 ab5 12.ab5 Bd7; E) 7.a4 Bd6 (7...e4 8.Nh4 g5 9.Nf5 Ne5 10.Ng3 Bd6 11.h4 Bg4 12.Be2 Be2; 7...Be7 8.d3 d4 9.Ne4 0-0 10.Be2 Ne4 11.de4 b6 12.0-0 Bb7) 8.Nh4 g6 9.g3 d4 10.Ne2 Nb6 11.Bg2 Nc4 12.Bc1 g5; F) 7.g3 Bd6 (7...e4 8.Nh4 Bd6 9.Be2 Nb6 10.d3 0-0 11.0-0 Be6 12.a4 g5) 8.Be2 Nb6 9.0-0 d4 10.ed4 cd4 11.Nb1 0-0 12.c4 d3; G) 7.Ne2 Bd6 (7...e4 8.Nh4 Nb6 9.Ng3 Na4 10.Ba3 g6 11.c4 Nb6 12.Qc2 Be7; 7...Qc7 8.Ng3 e4 9.Nh4 Ne5 10.f4 ef3 11.gf3 Be6 12.f4 Ng6) 8.Ng3 g6 9.c4 e4 10.Ng5 h6 11.Nh3 d4 12.ed4 cd4.

6.Nf3 Be7 A) 7.Bd3 0-0 (7...Bd6 8.0-0 0-0 9.Rc1 Nb6 10.Re1 Bd7 11.e4 de4 12.Ne4 Ne4; 7...c4 8.Be2 0-0 9.0-0 Nc5 10.d3 cd3 11.cd3 Bd7 12.Ne5 Rc8; 7...h6 8.0-0 0-0 9.Re1 c4 10.Be2 Nc5 11.d3 cd3 12.cd3 Bd7; 7...Qc7 8.0-0 0-0 9.h3 e5 10.Be2 e4 11.Nh4 Nb6 12.a4 d4; 7...Qa5 8.0-0 0-0 9.Be2 Bd6 10.d4 Qc7 11.Na4 cd4 12.Qd4 e5; 7...Qb6 8.0-0 0-0 9.a4 c4 10.Be2 Nc5 11.d3 cd3 12.cd3 Qa5) 8.0-0 e5 9.Bf5 e4 10.Ne1 Bd6 11.f4 Nb6 12.Bc8 Rc8; B) 7.g3 0-0 8.Be2 e5 9.0-0 e4 10.Nh4 d4 11.Na4 Nb6 12.Nb6 Qb6; C) 7.Be2 e5 (7...0-0 8.0-0 e5 9.d3 d4 10.Ne4 Qa5 11.a4 Nd5 12.c4 dc3; 7...h6 8.0-0 0-0 9.d4 Qc7 10.h3 cd4 11.ed4 b6 12.Qd2 Bb7; 7...Bd6 8.0-0 0-0 9.h3 h6 10.Qe1 b6 11.Rc1 Bb7 12.Rb1 Qe7; 7...Qc7 8.0-0 0-0 9.a4 e5 10.a5 d4 11.b6 Qc6 12.Nb5 ab6; 7...b6 8.0-0 Bd6 9.g3 0-0 10.a4 Bb7 11.d3 h6 12.Qd2 Qc7; 7...Nb6 8.d4 Qc7 9.0-0 0-0 10.Ba3 Ne4 11.Ne4 de4 12.Nd2 cd4) 8.0-0 0-0 9.d3 d4 10.Ne4 Qa5 11.Nf6 Bf6 12.a4 e4.

6.Nf3 h6 A) 7.Be2 Bd6 (7...e5 8.d3 Bd6 9.Nd2 0-0 10.0-0 Nb6 11.a4 Be6 12.Bf3 a6; 7...b6 8.0-0 Bd6 9.h3 0-0 10.d3 Bb7 11.Re1 Qc7 12.Qb1 Rfe8; 7...Nb6 8.d4 Bd6 9.0-0 0-0 10.Ne5 Nbd7 11.f4 cd4 12.ed4 a5) 8.0-0 e5 9.d3 0-0 10.Nd2 Nb6 11.a4 Be6 12.Bf3 a6; B) 7.g3 e5 (7...Bd6 8.Bg2 e5 9.0-0 e4 10.Nh4 Ne5 11.d3 g5 12.Nd5 Nd5; 7...Nb6 8.Bd3 Bd6 9.a4 e5 10.a5 Nc4 11.Bc4 dc4 12.d3 0-0) 8.Bh3 Bd6 9.Nh4 0-0 10.Nf5 Nb6 11.0-0 d4 12.Ne2 g6; C) 7.Bd3 Bd6 (7...e5 8.Bf5 e4 9.Nh4 Rg8 10.f3 d4 11.ed4 cd4 12.Na4 g6; 7...c4 8.Be2 Bd6 9.0-0 0-0 10.d3 cd3 11.cd3 Nc5 12.Rc1 Bd7; 7...Qa5 8.0-0 Bd6 9.h3 0-0 10.Be2 e5 11.d3 d4 12.Ne4 Bc7) 8.0-0 0-0 9.Be2 e5 10.d3 Nb6 11.a4 d4 12.Ne4 Ne4; D) 7.Ba3 e5 (7...Bd6 8.Be2 0-0 9.0-0 e5 10.d3 Nb6 11.Qc1 Be6 12.d4 e4; 7...Qa5 8.Bb2 Bd6 9.Be2 e5 10.0-0 d4 11.Nb1 0-0 12.Re1 Nb6) 8.h3 Qa5 9.Qc1 e4 10.Nh4 Nb6 11.Bb2 g5 12.Nd1 d4; E) 7.d3 Bd6 (7...b6 8.g3 Bb7 9.Bg2 Bd6 10.0-0 0-0 11.Qd2 Qc7 12.Qe2 Rad8; 7...e5 8.Qd2 Bd6 9.Be2 d4 10.Ne4 Ne4 11.de4 Nf6 12.ed4 cd4; 7...Qa5 8.Qd2 Bd6 9.Be2 b6 10.h3 0-0 11.0-0 Bb7 12.a4 Rfe8; 7...a6 8.a4 Qa5 9.Qd2 Bd6 10.Be2 0-0 11.ba6 ba6 12.0-0 Rb8) 8.Be2 0-0 9.0-0 b6 10.Qc1 Bb7 11.Qd2 Qc7 12.g3 e5; F) 7.a4 Bd6 (7...e5 8.Ne2 Bd6 9.Ng3 0-0 10.Nf5 Bc7 11.N3h4 Ba5 12.c3 Nb6; 7...c4 8.d3 Bb4 9.Qd2 Qa5 10.Nd4 e5 11.Nde2 0-0 12.Ba3 Ba3) 8.Be2 0-0 9.d4 cd4 10.ed4 Ne4 11.0-0 Ndf6 12.Ne5 Qc7; G) 7.Rc1 e5 (7...Bd6 8.Bd3 0-0 9.0-0 e5 10.Nh4 e4 11.Nf5 Bh2 12.Kh2 ed3; 7...Nb6 8.d4 Bd6 9.Bd3 0-0 10.0-0 c4 11.Be2 a6 12.Ra1 Bd7; 7...a6 8.ba6 ba6 9.Rb1 Bd6 10.h3 0-0 11.Be2 Rb8 12.0-0 Bb7; 7...Qa5 8.Be2 Bd6 9.0-0 0-0 10.Qe1 e5 11.d3 d4 12.Ne4 Qa2; 7...Be7 8.Be2 0-0 9.0-0 e5 10.d3 d4 11.ed4 ed4 12.Ne4 a6; 7...b6 8.g3 Bd6 9.Bg2 0-0 10.0-0 a6 11.Ra1 Qe7 12.Qe2 Bb7; 7...Qc7 8.g3 Bd6 9.Bg2 0-0 10.0-0 Nb6 11.d3 e5 12.Nd2 Be6) 8.Ne2 Bd6 9.Ng3 0-0 10.Nf5 Bc7 11.c4 d4 12.N3h4 Nb6; H) 7.a3 e5 (7...Bd6 8.Be2 0-0 9.0-0 e5 10.h3 e4 11.Nh2 d4 12.Na4 Qa5; 7...b6 8.g3 Bb7 9.Bg2 Bd6 10.0-0 0-0 11.Qe2 Ng4 12.d3 Qc7; 7...Qb6 8.Be2 Bd6 9.0-0 0-0 10.h3 Qa5 11.d3 Ne5 12.Qe1 Nf3; 7...Qa5 8.Be2 Bd6 9.0-0 0-0 10.d3 a6 11.a4 b6 12.Qd2 Bb7; 7...Qc7 8.g3 Bd6 9.Bg2 0-0 10.0-0 Nb6 11.d3 e5 12.a4 d4) 8.d3 d4 9.Ne4 Qa5 10.Qd2 Qb5 11.c3 de3 12.fe3 Be7; I) 7.h3 Bd6 (7...e5 8.d3 Bd6 9.Nd2 0-0 10.Be2 d4 11.Nce4 Ne4 12.Ne4 Nf6; 7...Qc7 8.Be2 Bd6 9.0-0 0-0 10.a4 b6 11.Qb1 Bb7 12.a5 ba5; 7...c4 8.d3 cd3 9.cd3 Bd6 10.Be2 0-0 11.0-0 Nc5 12.Rc1 Bd7) 8.Be2 0-0 9.0-0 e5 10.d3 d4 11.Ne4 Ne4 12.de4 Re8.

6.Bc4 Nb6 7.Be2 Bd6 8.Nf3 0-0 9.0-0 Bd7 10.Qc2 Qe7 11.d4 c6 12.e4 Bb4 (worse is 12...cb5 13.e5+/–) 13.a3 Ba5 14.Bd3 h6 15.Bc3 Bc3 16.Nc3 cb5 17.Bb5 Bb5 18.Nb5 Rac8 19.Qb3 Ra8 (worse is 19...Ne4 20.Rfe1 Nd6 21.Na7+–) 20.e5 Nfd5 21.Rfc1 Rfc8 22.Nd6 Rc1 23.Rc1 Qd7 24.Qb2 Rb8 25.h3 f5 26.Nd2 Nf4 27.Rc2 Nbd5 28.Kh2 Nd3 29.Qb3 Nf2 30.Qf3 Ne4 31.N2e4 fe4 32.Qe4 Rf8 33.Qd3 a6 34.Qg3 b6 35.Rc4 Kh7 36.Rc1 g6 37.Qd3 b5 38.a4 Rf2 39.Kh1 b4 40.Ne4 Rf4 1–0. Karpenko – Kozlov, RUS–Cup2 email, 2002.

6.Bc4 Nb6 7.Be2 Be7 8.Nf3 0-0 9.0-0 Bd7 10.Nc3 Nfd5 11.a4 Bf6 12.d4 Nc3 13.Bc3 Nd5 14.Bd2 c6 15.e4 Nc7 16.Rb1 cb5 17.ab5 b6 18.Bb4 (18.Qb3 Bc8+/–) 18...Be7 19.Be7 Qe7 20.Ne5 Rfd8 21.f4 f6 22.Nd7 Rd7 23.Qa4 Rad8 24.Rfd1 (24.Rbd1 f5=) 24...Ne8 (24...f5!?+=) 25.Rb3 ½–½. Noack,Rolf – Scheide,Helmut (1920), GER–chT Seniors, 2003.

6.d4 Ncd7 7.Qb3 a6 8.a4 Be7 9.cd5 Nd5 10.Nf3 0-0 11.Bd3 Bb4 12.Nbd2 N7f6 13.0-0 Bd2 (13...Qe7 14.Rfc1+=) 14.Nd2+/- b6 15.g3 Bb7 16.e4 Ne7 17.Qc2 Ng6 (17...h6!?+=) 18.Rfc1+/- Ne8 19.Ba3 Ne7 20.e5 f5 21.Bc4 Bd5 22.ba6 f4 (22...Rf7 23.a5!+/-) 23.Ne4 fg3 24.hg3 Rf3? (better 24...h6+-) 25.Ng5 Rf5 (25...Ng6 26.Nf3 Bf3 27.Be6 Kh8 28.Qb3+-) 26.Ne6 (better 26.Be7 Qd7 27.Bd5 Qd5 28.Qc6 Qc6 29.Rc6 Ra6 30.Bd8+-) 26...Qd7 (26...Rh5 27.Qe4! Be4 28.Nd8 Bd5 29.f3 Bc4 30.Rc4+-) 27.Be7 (27.Bd5 Qd5 28.Nf4 Rf4 29.gf4+- (29.Be7?! Rd4 30.Rd1 c5+=)) 27...Be6?? (better 27...Rh5 28.f3! Be6 29.Be6 Qe6+-) 28.Qf5 Nd6 (28...Qe7 29.Be6 Kh8+-) 29.Be6 Kh8 30.ed6 (30.ed6 Rc8 31.Bd7 h6 32.Bc8 c6 33.d7 g6 34.Qg6 b5 35.d8Q) 1-0. DEFFM – korytov, freechess.org, 2021.

6.d4 Nce4 7.c5 b6 (better 7...Nd7=) 8.c6?? (better 8.f3 bc5 9.fe4 Ne4 10.Nf3+/-) 8...Bb4-+ 9.Ke2 a6 (9...Ng4 10.Nh3 Ngf2 11.Nf2-+) 10.a4 ab5 11.ab5 Ra1 12.Ba1 Qe7?? (12...Ng4 13.Nh3 Ngf2 14.Nf2 Qh4-+) 13.f3=+ Ng5 (13...Nd6 14.Qa4 Nf5 15.g4=) 14.h4= e5?? (better 14...Nge4 15.fe4 Ne4=) 15.hg5+- ed4 (15...Ng8+-) 16.gf6 (better 16.Qd4 Bc5 17.Qf4+-) 16…Qe3 0-1. Fuirio (1690) – Myroslav, Rated Classical game, lichess.org, 2013.

6.a4 dc4 7.Bc4 cb5 8.ab5= Qc7 9.Qb3 Ne5 (9...a5 10.Nf3=+) 10.Be2 b6 (10...Ned7 11.Nf3=) 11.d4+= Ng6 12.Nd2 Bb7 13.Rc1 Qd7 14.Ngf3 Bd6 15.0-0 0-0 16.Rfd1 Ne4 17.Nc4 Rac8 (17...Bd5 18.Qa4+=) 18.Nd6 Qd6? (18...Rc1 19.Bc1 Nd6 20.Ne5+/-) 19.Ne5?? (19.Ba3 Bd5 20.Qa4+- (20.Bd6?! Bb3 21.Bf8 Nc3 22.Rc3 Rc3+/-)) 19...Rc1 (19...Ne5 20.de5 Qe7 21.f3+=) 20.Rc1+/- Ne5 21.de5 (21.Ba3 Qd8 22.Bf8 Qh4-/+) 21...Qd2 22.Rc2 (22.Qc2!? Qd7 23.Ra1+=) 22...Qe1= 23.Bf1 Rd8 24.Re2 (24.Bd4 Rc8 25.Rc8 Bc8=) 24...Qb1 (better 24...Qd1 25.Qc2 Qd7=) 25.Qa3?? (25.Qc2!? Qc2 26.Rc2=) 25...Nd2 (better 25...Rd1 26.Bc1 Rc1 27.Qc1 Qc1-+) 26.Rd2=+ Rd2 27.Qc3?? (27.Qa7 h6 28.Qb7 Qb2 29.Qa8 Kh7 30.Bd3 g6 31.Qf8 Rf2 32.Bg6 Kg6 33.Qg8 Kh5 34.h3-+) 27...Qd1 (better 27...Rd1!? 28.Qc4-+) 28.Ba3?? (28.Qb4-+) 28...h6 29.h3 (29.Qc1 Be4-+) 29…Bd5 0-1. ClayPigeons (2180) - kafa_bi_milyon (2125), Rated Bullet game, lichess.org, 2020.

6.Nc3 Nb6 7.cd5 cd5 8.Nf3 Nc4 9.Bc4+= dc4 10.Qa4 Qc7 11.b6+/– Qc6 12.Nb5 Nd5?? 13.Ne5+– Nb6 14.Nc7 Kd8 15.Nc6 Kc7 16.Be5 Bd6 17.Bd6 Kd6 18.Qd1 bc6 19.0-0 Ba6 20.Re1 Ke7 21.e4 Rhd8 22.Re3 g6 23.Qc2 Rd6 24.Qc3 c5 25.Rf3 Nd7 26.Rc1 f6 27.Qa5 Rd8 28.h3 Ne5 29.Ra3 Rc8 30.d3?? Nd3 31.Rd1 Rcc6 ½–½. Dopper,Johan – Bloom, 1994.

6.bc6 bc6 7.Nf3 Rb8 =+.

6.Nf3 dc4 7.bc6 bc6 8.Na3 (8.Bc4 Nb6 9.Be2 Rb8=) 8...Nb6 (8...Ba3 9.Ba3 Ba6 10.Qc2=) 9.Nc4 Nc4 (9...Ba6 10.Rc1=) 10.Bc4+= Be7 11.Bf6 Bf6 12.Be2 (Better is 12.d4=) ½–½. Quabach,Juergen – Lenzen,Josef, Koeln CC Christmas op, 1994.

6.Nf3 Bd6 7.bc6 bc6 8.Qa4 =+.

6.a4 dc4 7.Nf3 c6 (7...a6 8.Bc4 ab5 9.ab5 Ra1 10.Ba1=) 8.Bc4 cb5 9.ab5 Nb6 10.Be2 Bd7 11.0-0 0-0 12.Nc3 Rc8 (12...Qc7 13.d4=) 13.d4 (13.Ra7 Qc7+/-) 13...Nbd5 (13...Ra8!?+=) 14.Nd5+/- Nd5 15.Ra7 Qb6 16.Ra1 (better 16.Qa4+/-) 16...Bb5= 17.Bb5 Qb5 18.Rb1 Qc6 19.Ne5 Qc7 20.Qb3 f6 21.Rfc1 (21.Nd3 Kf7+=) 21...Qd6 (21...Qb6 22.Qb6 Nb6 23.Nd3=) 22.Nd3+= b6 (22...Qb6 23.Qb6 Nb6 24.Nc5 Bc5 25.dc5=) 23.Ra1 (23.e4 Nc7 24.Bc3+/-) 23...Qd7? (23...Rc1 24.Bc1 f5 25.Qb1+=) 24.Ba3 (24.e4 Nc7 25.Qb6 Nb5+/-) 24...h6? (better 24...Ba3!? 25.Qa3 Rfd8+=) 25.Be7+- Qe7 26.h3 (26.e4 Nc7 27.Qb6 Na8+-) 26...g5? (better 26...Qd6+=) 27.e4+- Nf4 28.Nf4 gf4 29.Qb6 Rc1 30.Rc1 Rd8 31.Rc6 e5? (better 31...Kf7+-) 32.d5 (32.Re6 Qd7 33.Rf6 Qe7 34.Rh6 ed4 35.Qg6 Qg7 36.Qe6 Qf7 37.Rh8 Kh8 38.Qf7 Ra8+-) 32...Rf8 33.Rc7 Qa3 (33...Qe8+-) 34.Qe6 Kh8 35.Qf5 (35.Qd7 Qa1 36.Kh2 Qg1 37.Kg1 Rf7 38.Qf7 f5 39.Qg7) 35...Qc1 (35...Qa1 36.Kh2 Qh1 37.Kh1 Rf7 38.Rf7 f3 39.Qc8) 36.Kh2 (36.Rc1 Rb8 37.Rc7 Rb1 38.Kh2 Rh1 39.Kh1 f3 40.Qc8) 36...Qc7-+ 37.Qg6 (37.g3 fg3 38.fg3 Qh7 39.Qh7 Kh7-+) 37...Qg7 38.Qh5 f3! 39.Qf3 (39.gf3 Rd8 Combination; 39.Qf3 Rd8 Combination) 39...f5! 40.ef5 e4 (better 40...Qg5 41.g4 Rd8-+) 41.Qe4=+ Qf6 42.g4 Qg5 (42...Qd6!? 43.f4 Rd8-/+) 43.f4 Qf6 44.Kg3 Qg7 (44...Rd8 45.Qe6 Kg7 46.Kf3=) 45.h4 (45.Qe5 Kg8+=) 45...Rc8 (45...Qc3 46.Kf2 Qh3 47.Qe5 Kg8 48.Qe6 Rf7 49.Qe8 Kg7 50.f6 Rf6 51.Qe7 Rf7 52.Qe5 Kf8 53.Qb8 Kg7 54.Qe5 Kh7 55.Qe4 Kg8 56.Qe8 Kg7 57.Qe5=) 46.g5+= Rc3? (46...hg5 47.hg5 Rd8+/-) 47.Kg4+- h5 (47...Rc8 48.f6 Qd7 49.Kh5 hg5 50.Qe7 (50.hg5?? Qh3 51.Kg6 Qh7) 50...Qe7 51.fe7-/+) 48.Kh5 Qh7 (48...Qf7 49.g6 Qf6 50.d6+-) 49.Kg4 Rc1 (49...Rc8 50.h5+-) 50.Qe8 Qg8 51.Qe5 Qg7 52.f6 Rg1 53.Kf3 (better 53.Kh3 Qf7 54.f5 Rh1 55.Kg3 Rg1 56.Kh2+-) 53...Qb7 (53...Qf7 54.Ke2 Kg8+-) 54.f7 Kh7 55.Qf5 Kg7 56.f8Q 1-0. BeepBeepImAJeep (2715) - Jarko (2465), lichess.org, 2016.

6.Nd2 Na4 7.Qc1 (7.Bd4 a6 8.Rb1 ab5 9.Rb5 Bd6=+) 7...Nb2 8.Qb2 b6 9.Be2 Bd6 (9...a6 10.c4=+) 10.Ngf3 Bd7 (10...a6 11.e4 Be7 12.e5=) 11.0-0 (11.e4 de4 12.de4 Qe7+=) 11...c5 (11...a6 12.a4=) 12.c4 Qc7 13.a4 a6 14.ba6 Ra6 15.Rfb1 Ng4?? (better 15...Ra4 16.Ra4 Ba4 17.Qb6 Qb6 18.Rb6 Ke7=) 16.Qg7+– Nh2?? (16...Bh2 17.Kf1 Ne3 18.fe3 Rf8+–) 17.Qh8 Ke7 18.Qh7 Nf3 19.Nf3 Ra8 (19...dc4 20.Ng5 Be8 21.Bg4 Bh2 22.Kh1+–) 20.Qh4 Ke8 21.Qh8 Bf8 22.cd5 (22.Ng5 Ke7+–) 22...Ke7 (22...ed5 23.Ng5 Qd6 24.Qg8+–) 23.de6 Be6 24.Qh4 Ke8 25.Qe4 Rd8 (25...Ra7 26.Ng5 Qd6 27.Bg4+–) 26.Ng5 Rd6 (26...Bg7 27.Ne6 fe6 28.Qe6 Kf8 29.Qf5 Ke7 30.Qe4 Kf8 31.Ra3+–) 27.Bg4 (better 27.a5 b5 28.Rb5 Be7+–) 27...Bg7 (27...Qe7 28.Ne6 Re6 29.Qa8 Qd8 30.Qd8 Kd8 31.Be6 fe6 32.Rb6+–) 28.Ne6 (better 28.Be6 Re6 29.Ne6 fe6 30.Qe6 Kf8 31.Rb6 Ba1+–) 28...fe6 29.Be6 (better 29.Ra3 Qa7 30.a5+–) 29...Ba1 (29...Qe7 30.Qa8 Qd8 31.Qb7+–) 30.Ra1 (30.Qg6 Qf7 31.Qf7 Kd8 32.Qf8 Kc7 33.Qc8) 30...Qe7 (30...Kd8 31.a5! ba5 32.Rb1+–) 31.Qg6 Kd8 32.Qg8 Qe8 33.Qe8 Ke8 34.Bc4 Ke7 35.f4 Rf6 (35...Rd8 36.g4+–) 36.Kf2 Rh6 37.a5 ba5 38.Ra5 Rc6 39.g4 1–0. jaddwarrior (1990) – kwikclaude (1950), ChessWorld.net, 2017.

6.Be2 Bd6 7.Nf3 Bd7 8.a4 Bb5?? (better is 8...a6=) 9.ab5+– c5 10.bc6 (10...bc6 11.0-0+–) 1–0. Plock,Joerg – Biebel,R, corr DDR, 1989.

6.Bc3 Bd6 7.Nf3 =+.

6.Nd2 Ne4 (6...0-0 7.a3 Ba5 8.Bd3=+) 7.Ngf3 (7.c3 Nd2 (worse 7...Nc3 8.Qb3+–) 8.Qd2 Be7=) 7...Bd2 (7...a6!?=+) 8.Nd2+= Nf2? (better 8...Nd2 9.Qd2 a6+=) 9.Kf2+– Qf6 (9...a6 10.Qf3+–) 10.Qf3 Qe7 11.a4 f5 (11...Qh4 12.g3 Qe7 13.Ba3+–) 12.Qh5 (12.Ba3 Qd8+–) 12...g6 13.Qh6 Nf6 14.Be2 b6 (14...Ng4 15.Bg4 fg4 16.e4+–) 15.Ba3 Qf7 16.h3 (16.Rhf1 a6+–) 16...Rg8 17.g4! g5 (17...fg4 18.Kg1 Decoy) 18.gf5 ef5 (18...Bd7 19.Rhg1+–) 19.Bh5! Nh5 (19...Nh5 20.Qc6 Double attack; 19...Qh5 20.Qf6 Deflection) 20.Qc6 Qd7 (20...Kd8 21.Qa8 f4 22.e4+– (22.Qa7?! fe3 23.Ke3 Qf4 24.Kd3 Re8=)) 21.Qa8 Kf7 (21...Nf6 22.Qa7 g4 23.Raf1+–) 22.Nf3 Kf6 (22...Ke8 23.Ne5 Qe6 24.Qa7+–) 23.Ne5 Qe6 (23...Qd8 24.Rag1+–) 24.c4 (24.Qa7!? Rg7 25.Bf8 Rg8 26.Qc7 Rf8 27.Qh7 Rg8 28.Qh5 Ke7+–) 24...dc4 25.Qf3 (worse 25.Qa7 Rg7 26.Bf8 Rf7+–) 25...Qe8 26.Rac1 Be6 27.Nc4 Kg7 (27...a6 28.ba6 Ng7 29.d5+–) 28.Ne5 c5 29.bc6 Nf6 30.Rhg1 Ne4 31.Kg2 (31.Ke1 Qd8+–) 31...Bd5 32.Kh2 Qe6 33.Qh5 h6 34.c7 (34.Qe2 Rc8 35.Qa6 Rc7+–) 34...Bb7 (34...Rc8 35.Qe2+–) 35.Rg2 Kh7 (35...Rc8 36.Rb2 Bd5 37.Qe2+–) 36.Rgc2 Rc8 37.Rf1 (better 37.Qf7 Qf7 38.Nf7 Bd5+–) 37...Rg8 (37...Kg7 38.Rb1 Nd6 39.Bd6+–) 38.Qf7 Qf7 39.Nf7 Bc8 40.Rc6 Rg6 41.Ne5 Rg8 42.d5 h5 (42...Re8 43.Nf7 Nd2 44.Rd1 Nf3 45.Kg3 Re3 46.Bc1 f4 47.Kf2+–) 43.d6 Nd2 (43...Nf6+–) 44.Rd1 Nf3 45.Nf3 Bd7 46.Ne5 f4 47.Nd7 g4 48.Nf6 Kg6 49.Ng8 f3 (49...g3 50.Kg1 f3 51.d7 Kf7 52.d8Q f2 53.Kg2 f1Q 54.Rf1 Kg7 55.Bb2 Kh7 56.Rf7) 50.d7 Kh7 (50...Kg7 51.Bb2 Kh7 52.Rh6 Kg8 53.c8Q Kf7 54.Qe8) 51.d8Q g3 52.Kg3 h4 53.Qh4 Kg8 54.c8Q Kf7 (54...Kg7 55.Qf8) 55.Qf8 1–0. GuestMSNF – GuestJXWY, freechess.org, 2019.

6.Nc3 c5 7.Nf3 cd4 8.Qd4 e5 9.Qd2? (better 9.Qd1 Bb4 10.a3-/+) 9...Bb4-+ 10.a3 (10.Bd3 e4-+) 10...Ne4 11.Qd5 Bc3 (worse 11...Nc3 12.Qc4 Nd5 13.ab4+/-) 12.Bc3 Nc3 13.Qc4 Qa5 14.Nd2 Nb6 15.Qc7 Be6 16.Qe5 0-0 17.Bd3 Rfd8 18.Qc5 Na2 19.Qh5 g6 20.Qe2 (20.Qd1 Nc3 (worse 20...Qa3 21.0-0-+) 21.Qf3 Nb5-+) 20...Nc3 (worse 20...Qa3 21.0-0-+) 21.Qf3 Nca4 22.Ke2 Nc3 23.Ke1 Rd3! 24.cd3 Qb5 (24...Nb5?! 25.Qb7 Qc3 26.Rd1-+) 25.Rc1 Nba4 26.Rc2 Qd3 27.Rc1 Rd8 28.Nb1 Nb1 29.Qd1 Nd2 30.Qc2 Qa3 31.Qd2 Rd2 32.Kd2 Qb2 33.Rc2 Qb4 34.Ke2 Qg4 35.Kd2 Qg2 36.Re1 Qf2 37.Re2 Qf3 38.Re1 Qd5 39.Kc1 Qd3 40.h3 Bb3 41.Ree2 Nc3 42.Red2 Qe3 43.h4 Na4 44.h5 Kg7 45.h6 Kh6 (45...Kh6 46.Kb1 Qe1 47.Rc1 Qd2 48.Rh1 Kg7 49.Rh7 Kh7 50.Ka1 Qe1) 0-1. ravindraveena04 (1990) - marekt (2230), gameknot.com, 2021.

6.Nf3 0-0 7.Bd3 c6 8.a4 a6 9.Nbd2 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Bb5 b6 13.0-0 Bb7 14.c4 Qa8 (14...dc4 15.Rc1=) 15.Qb1 (15.Ne5 Bb4 16.Bd7 Bd2+=) 15...dc4= 16.Bc4 Ne4 (16...Bb4 17.Qa1=) 17.Ne4 (17.Bb5 Nd2 18.Nd2 Rd8=) 17...Be4 18.Bd3 (better 18.Qd1!?=) 18...Bf3–/+ 19.gf3 Qf3 20.Bh7 (20.Qc2 Nf6 21.Qe2 Qe2 22.Be2 b5–/+) 20...Kh8–+ 21.Be4 Qh3 22.Bg2?? (better 22.f4 Qe3 23.Kh1–+) 22…Qh2 0–1. GuestHDDH – GuestQKLL, freechess.org, 2017.

6.Nf3 c6 7.Bd3=+.

6.Nf3 Qe7 7.c4= dc4 8.Bc4 Nb6 (8...Bh2 9.Rh2 Qb4 10.Nbd2 Qb2 11.Rc1=) 9.Bb3 (9.Bd3 0-0=) 9...Nbd5 (9...a6 10.ba6 Ra6 11.Ne5=+) 10.0-0 Ne4 (10...Bd7 11.Bc4=) 11.Bc2 (11.Qc2 Ng5 12.Ne5 Bd7+=) 11...Ndf6 (11...f5 12.Nfd2 Nd2 13.Nd2=) 12.Nbd2 (12.Bd3 0-0=) 12...Nd2+= 13.Qd2 Nd7 (13...Bd7 14.Bd3+=) 14.e4 (14.Bd3 0-0+=) 14...e5 15.d5 0-0= 16.a4 f6 17.Nh4 Nb6 18.Qe2 Bd7 19.Bb3 Rae8 20.Rac1 Kh8 21.Qh5 Qf7+= 22.Qf7 Rf7 23.Rfd1 Ref8 24.h3 f5 25.ef5 Bf5 26.Nf5 Rf5 27.f3 Rf4 28.a5 Nd7 29.Rc4 Rc4 30.Bc4 Rf4 31.Be2 Ra4 32.Ra1 Ra1 33.Ba1 b6 34.a6 g5 35.g3 Kg7 36.h4 h6 37.hg5+/– hg5 38.Kg2 Nf6 39.Kh3 Kh7 40.Bd3 Kh6 41.Be4 Kh5 42.Kg2 Ne4 43.fe4 g4 44.Kf1 Kg5 45.Ke2 Kf6 ½–½. Tcheau,Alain – Trachsel,Peter, SUI–ch op2 Luzern, 1994.

6.c4 a6 7.cd5 Nd5 8.Nc3 =.

6.c4 a6 7.Be2 =.

6.c4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4 Nbd7).

6.c4 dc4 7.Bc4 Bb7 8.0-0 Bd6 9.d4 Ng4 (9...a6 10.Nc3=) 10.h3 (10.Nbd2 a6=) 10...Bf3+= 11.gf3 Nh2 12.f4? Nf1–/+ 13.Kf1 Nf6 (13...Qf6 14.Nc3–+) 14.Qf3–/+ Rc8 (14...a6 15.Qc6 Nd7 16.d5 ab5 17.Bg7+=) 15.e4 Be7 (15...Bf8 16.f5 Qd7 17.fe6 fe6 18.Nc3–/+) 16.Nd2 (16.f5 ef5 17.Qf5 0-0–/+) 16...0-0 (16...Qd7 17.f5 Bb4 18.Qg3–/+) 17.Ke2 (17.f5!? ef5 18.e5–/+) 17...c6–+ 18.bc6 Rc6 19.Bd3 Bb4 20.Rg1 g6 (20...Kh8 21.f5–+) 21.e5 (21.a3 Bd2 22.Kd2 b5–+) 21...Nd5 22.Ne4 (22.f5 Rc7–+) 22...Qc8 (22...Qc7 23.a3 Be7 24.Nd2–+) 23.Kd1 Nc3 (23...Rc7 24.a3 Be7 25.f5–+) 24.Bc3 Rc3 25.Nc3 Qc3 26.Qe3 (26.Ke2 Qd4 27.Rb1 Qc3–+) 26...Rc8 (better is 26...Qa1!? 27.Qc1 Qa2–+) 27.Ke2–/+ Qb2 28.Kf3 Bd2 29.Qe4 Rc3 30.Kg4 Bf4! 31.Rg2 Qd2 32.Be2?? h5 33.Kh4 g5 34.Kh5 Rh3 35.Kg4 Rh4 36.Kf3 Qc3 37.Bd3 Rh3 38.Rg3 Bg3 39.fg3 Rh1 40.Kg4 Rd1?? 41.Qh7+= Kf8 42.Qh8 Ke7 43.Qf6 Kf8 44.Qd8 Kg7 45.Qg5 Kf8 ½–½. De Visser,Arno – Hage, Noordkop, 1997.

6.c4 dc4 7.Bc4 g6 8.0-0 Nc5 9.d4 Nce4 10.Nbd2 Bg7 11.Ba3 Bb7 12.Ne4 Ne4 13.Nd2 Nd6 14.Be2 Rc8 15.Bd6 cd6 16.Bf3 d5 17.Qb3 0-0 18.Rfc1 Qd7 19.a4 h5 20.Qb2 Rfe8 21.Rc8 Rc8 22.Rc1 Rc7 23.Nb3 Rc1 24.Qc1 a6 25.Be2 a5 26.Nd2 ½–½. hal1958 – Macchess, HCL–B2214 playchess.de, 2003.

6.c4 c5 7.bc6 Nc5 8.cd5 ed5 9.Bb5 a6 10.c7 Qd7 11.Bd7 Bd7 12.Bf6 gf6 13.Nc3 Bg4 14.Nd5 Nd3 15.Ke2 Nb2 16.Qc1 Ba3 17.Qc6 Kf8 18.Qa8 Kg7 19.Qd8 Nc4 20.Qf6 Kg8 21.Qh6 Bb2 22.Ne7 1–0. Bonetti,Shane – guest1062, ICC, 2002.

6.c4 Bd6 7.Be2 0-0 8.Nd4 Bb7 9.f4 Re8 10.0-0 Ne4 11.Nf3 Ndf6 12.Qc2 Qd7 (12...a6 13.d3 Nc5 14.Nc3=) 13.Nc3 Nc3 14.Bc3 Ne4 15.Bb2 f6 16.Nd4 e5 17.fe5 Be5 18.Bf3 c5 19.bc6 Bc6 20.d3 Bd4 21.Bd4 Ng5 22.Bd5 Bd5 23.cd5 Qd5 24.Rad1 Rec8 25.Qb3 Qb3 26.ab3 Rc6 27.Rc1 Rac8 28.Rb1 a6 29.Ba1 Rc2 30.Rf2 Rf2 31.Kf2 Rc2 32.Kg3 Rd2 33.d4 Ne4 34.Kf3 f5 35.Rb2 Rd1 36.Ra2?? a5 37.Kf4 g6 38.g4 Rf1 39.Ke5 Kf7 40.gf5 gf5 41.d5 Ke7 42.Bd4 Rb1 43.Bb6 Rb3 44.Bd4 Rb5 45.Rg2 Nd6 46.Rg7 Nf7 47.Kf5 Rd5 48.Kg4 Kf8 49.Rh7+/– Rg5 50.Kf4 Rg6 51.Rh5 Ra6 52.e4 a4 53.Bc5 Ke8 54.Kf3 Rf6 55.Ke3 Rc6 56.Kd4 Nd8 57.Rh8 Kd7 58.Bb4 Ne6 59.Kd3 Ra6 60.h4 a3 61.Bc3 a2 62.Ba1 Nc5 63.Ke3 Ra3 64.Kf4 Nd3 65.Kf5 Ra5 66.e5 Ne5 67.Ke4 Nf7 68.Rh7 Ke6 69.Kd4 Rb5 70.h5 Rb1 71.Bc3 a1Q 72.Ba1 Ra1 73.Rg7 Rh1 74.Rg6 Kf5 75.Rg7 Nh6 76.Ra7 ½–½. Furlong,Kevin – Schuster,Mathias, Bayern–chI Bank Hofmann 2nd, 1998.

6.c4 Be7 7.cd5 ed5 8.Nd4 Bb7 (8...0-0 9.Nc6 Qe8 10.Ne7 Qe7 11.Ba3+–) 9.Be2 (9.Nf5 Bf8+=) 9...0-0 10.0-0 (10.Qc2 Nc5=) 10...a6 11.a4 ab5 (11...Ne5 12.Qc1=) 12.ab5 Ne5 (12...Ra1!? 13.Ba1 Nc5=) 13.Ra8+– Ba8 14.Nf5 Ng6 (14...Bd6 15.Nd6 cd6 16.Qc2+–) 15.Qc2 (15.Ne7 Ne7 16.Bf6 gf6+–) 15...d4 (15...Ne8!?+–) 16.Bd4+– Be4 (16...Re8 17.Rc1 Bf8 18.d3+–) 17.Ne7 Qe7 18.d3 Bb7 (18...Bf5 19.Rc1+–) 19.Nd2 (19.Bf6 Qf6 20.Qc7 Ba8+–) 19...Rc8 (19...Nd5 20.Bf3+–) 20.g3 (20.Bf3 Bf3 21.Nf3 Nd5+–) 20...c5 (20...Qe6 21.Qb2+–) 21.bc6+– Rc6 22.Qb2 Qc7 (22...Nf8 23.Rb1+–) 23.Nc4 b5 (23...Re6 24.f4 Ne7 25.Bb6+–) 24.Qb5 Ba6 25.Qb2 Qe7 (25...Bc4 26.dc4 Qc8 27.Ra1+–) 26.Ra1 Bc4 (26...Re6 27.Nb6 Qb7 28.Qa3+–) 27.Ra8 Nf8 28.dc4 Ne8 29.c5 Rh6 (29...Nf6+–) 30.Qb8 Nc7 (30...Nf6 31.c6 Ne8 32.Qe8 Qe8 33.Re8 Rc6 34.Bb2+–) 31.Ra7 Qd7 (31...Rc6 32.Bf3 Rc5 33.Bc5 Qc5 34.Rc7 Qe5+–) 32.Rc7 Qh3 33.Bc4 Qh2 34.Kf1 Rf6 35.Bf6 Qh1 36.Ke2 Qh5 37.Kd2 (37.Kd2 gf6 38.Qe8 Kg7 39.Rf7 Kh6 40.Rf6 Ng6 41.Qf8 Kg5 42.Rf5 Kg4 43.Be2 Kh3 44.Rh5 Nh4 45.Rh4 Kg2 46.Qf3 Kg1 47.Rh1) 1–0. DEFFM – GuestYYHZ, freechess.org, 2018.

6.c4 Be7 7.Be2 0-0 8.0-0 Nc5 9.a4 dc4 10.Bc4 Bb7 11.d4 Nce4 12.Bd3 Qd5 13.Nc3 Nc3 14.Bc3 Bd6 15.Re1 Qh5 16.Be2 (better is 16.Ne5!?+=) 16...Bf3=+ 17.Bf3 Qh2 18.Kf1 Rad8 19.e4 Bf4 20.Ke2 Qh6 21.Rh1 Qg5 (better is 21...Qg6 22.Qb1 e5=) 22.g3+/– Be5 23.Bd2 (better is 23.Qc1 Qc1 24.Rac1 Bd4 25.Bb4=) 23...Qg6–/+ 24.de5 Ne4 25.Ra2 Nc3?? (25...Rd2 26.Qd2 Nd2 27.Rd2 Qf5–+) 26.Bc3+– Rd1 27.Rd1 Qg5 28.Rad2 Rc8 29.Kf1 h5 30.Rd7 Qf5 31.Bb7 Qh3 32.Bg2 Qg4 33.Rd8 Rd8 34.Rd8 Kh7 35.Rd4 Qg6?? (better is 35...Qg5 36.Be4 g6+–) 36.Be4 f5 (36...Qe4 37.Re4 g5 38.Rc4+–) 37.ef6 gf6 (37...Qe4 38.Re4 gf6 39.Re6+–) 38.Bg6 (38.Rd7 Kh8 39.Bg6 e5 40.Bd2 Kg8 41.Bh6 c5 42.Rd8) 38...Kg6 39.Rd7 1–0. hal1958 – mrchess, HCL–A1276 playchess.de, 2003.

6.d4 Bb7 7.Bd3 a6 =.

6.d4 Bb7 7.Bd3 Bd6 8.0-0 0-0 9.a4 c6 10.Ba3 Qc7 11.Bd6 Qd6 12.c4 Rac8 13.Qb3 e5 14.de5 Ne5 15.Ne5 Qe5 16.Nd2 Rc7 17.Nf3 Qe6 18.Nd4 Qe8 19.cd5 cd5 20.Rac1 Qc8 21.Qb1 Rc1 22.Rc1 Qd7 23.h3 Re8 24.Bf5 Qd6 25.Nc6 Bc6 26.Rc6 Qe5 27.Qc2 Qa1 28.Kh2 Qe5 29.g3 g6 30.Bd3 Kg7 31.Rc7 Qh5 32.Be2 Qe5 33.Ra7 Ne4 34.Kg2 Ng5 35.h4 Qe4 36.Qe4 Ne4 37.Bf3 Nc3 38.Rb7 Na4 39.Bd5 Rf8 40.Ra7 Nc3 41.Bc6 Rb8 42.g4 Kf6 43.f4 h6 44.g5 hg5 45.hg5 Ke6 46.Kf3 f6 47.gf6 Kf6 48.e4 g5 49.e5 Ke6 50.Rg7 gf4 51.Kf4 Rf8 52.Ke3 Ke5 ½–½. hal1958 – CYTO, playchess.de, 2002.

6.d4 Bb7 7.Bd3 Ne4 8.Be4 de4+= 9.Nfd2 (9.Ne5 Ne5 10.de5 a6+=) 9...Qg5–/+ 10.g3 (10.0-0!? Qb5 11.Ba3–/+) 10...Qb5–+ 11.Qc1 (11.Ba3 c5 12.dc5 Nc5–+) 11...Qg5 (11...c5 12.dc5 Nc5 13.Nc3–+) 12.c4 (12.Nc3 Bb4–+) 12...c5 13.0-0 Qg4 (13...cd4 14.ed4 e3 15.fe3 Qe3 16.Rf2–+) 14.Nc3–/+ Qh3 15.f4 (better is 15.Nb5!? Kd8 16.dc5 Nc5 17.Qc3–/+) 15...Nf6 16.Re1 h5 17.Nf1 h4 18.Qc2 hg3 19.hg3?? (19.Ng3 Rc8 20.Re2 cd4 21.Qa4 Bc6 22.Qa6–+) 19...Qh1 20.Kf2 Qf3 21.Kg1 Rh1 0–1. De Visser,Arno – Groot, 1984.

6.d4 Bd6 7.Nbd2 Ne4 (7...a6 8.a4=) 8.Ne4 de4 9.Nd2 f5 10.Qh5 g6 11.Qh6 Qe7 12.a4 Bb7 13.Nc4 0-0-0 (13...a6 14.Nd6 cd6 15.Be2+=) 14.Be2 Qf8 15.Qh3 h5 16.Nd6 Qd6 17.0-0 Nf6 (17...Qb4 18.Rfb1 Qd2 19.Bc4+=) 18.Qh4 (18.a5 g5 19.ab6 ab6+/-) 18...Ng4 19.Ba3 Qd5 (19...g5 20.Bd6 gh4 21.Be7+-) 20.h3 Nh6 (20...e5 21.Rad1+- (21.Bg4 hg4 22.Qg3 gh3-/+; 21.hg4?! hg4 22.Qg3 Qd7+/-)) 21.Be7 Rdg8 22.a5 f4 (22...Nf7 23.Qf6 Rh7 24.ab6 ab6 25.Ra4+-) 23.Qf4 Nf5 24.a6 (24.a6 Ne7 25.ab7 Qb7 26.Bc4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.d4 Ne4 7.Nbd2 Nd6 (7...a6 8.Ne4 de4 9.Nd2=) 8.c4 (8.Bd3 Be7+=) 8...dc4= 9.Nc4 Nb5 10.Bd3 Bb4 11.Nfd2 Nd6 12.0-0 Bb7 13.Qc2 Qg5 14.Nd6 Bd6 (14...cd6!? 15.Ne4 Qe7=+) 15.Ne4= Qh4 16.Nd6 cd6 17.Qc7 Rb8 (17...Bg2!? 18.Kg2 Qg4 19.Kh1 Qf3 20.Kg1 Qg4 21.Kh1 Qf3 22.Kg1 Qg4 23.Kh1=) 18.Bb5+/- Qd8? (18...0-0 19.Bd7 Bg2 20.Kg2 Qg4 21.Kh1 Qf3 22.Kg1 Qg4 23.Kh1 Qf3 24.Kg1 Qg4 25.Kh1=) 19.Qd6 (better 19.Bd7!? Ke7 20.Qd8 Rhd8 21.Bb5+-) 19...Rc8+/- 20.d5 Qe7 21.Qg3 Rg8 22.de6 Qe6 (22...fe6!? 23.Rac1 Kf7+-) 23.Rfd1+- (23.Bg7?! Qd5 24.Bd7 Qd7+/-) 23...Rd8?? (23...Bc6 24.Rd6 Qd6 25.Qd6 Bb5+-) 24.Bd7 Rd7 25.Qb8 Ke7 26.Qg8 Rd1 (26...Bg2 27.Ba3 Kf6+-) 27.Rd1 Qg6 (27...Bd5 28.Ba3 Kf6 29.Qd8 Kg6 30.Rd5 f6+-) 28.Qd8 Ke6 29.Qd7 1-0. DEFFM – GuestJTXV, freechess.org, 2021.

6.d4 Be7 7.Be2 c5 8.0-0 (8.bc6 Nb8+=) 8...c4 9.Nc3 0-0 10.Ne5 Qc7 11.Nc6 (11.e4 Bb7 12.Nd7 Nd7=+) 11...Re8 (11...Bd6 12.f4=+) 12.e4 (12.Ne7 Re7 13.a4=) 12...Bb7 (12...de4 13.Ne7 Re7 14.d5=) 13.ed5 (better 13.Ne7!? Re7 14.e5+–) 13...ed5= 14.Bf3? (better 14.Ne7!? Re7 15.Bf3=) 14...Bc6–/+ 15.bc6 Qc6 16.a4 a5 (16...Bb4 17.Qc1–/+) 17.Re1 (17.Nb5 Bb4–/+) 17...Bb4 18.Re8 Re8 19.Ne2 h6 20.c3 Bd6 21.Ba3 Qc7 22.Bd6 Qd6 23.Qd2 Qb8 (23...Qe6 24.Re1–/+) 24.Nf4 b5 (24...Qb7 25.Re1 Ne4 26.Qb2–/+) 25.Bd5 (25.Rb1 b4 26.Nd5 b3=+) 25...Nd5 (better 25...Qd6!? 26.Bf3 Nc5–+) 26.Nd5= b4 (better 26...Nb6!? 27.Nb6 Qb6 28.ab5 Qb5=) 27.cb4+– Qb7 28.Ne3 ab4 29.Nc4 b3?? (better 29...Rb8+–) 30.Nd6+– Qb8 31.Ne8 Qe8 32.Rb1 Qb8 (32...Nb6 33.Qe3 (33.Rb3?! Qa4 34.Qd3 Qc6+–) 33...Qa4 34.Qb3 Qb3 35.Rb3+–) 33.Qc3 Qa7 34.Rb3 (better 34.a5!? Nf8+–) 34...Qa4 35.Qc8 (35.Rb1 Qa8+–) 35...Kh7 (better 35...Nf8 36.Rb1 Qd4+–) 36.Rc3?? (better 36.Qc2 g6 37.Qd3+–) 36…Qd1 0–1. GuestRPGP – srrty, freechess.org, 2017.

6.d4 h6 7.Ne5 Bb7 8.c4 (8.Bd3 Bd6=) 8...Ne5 9.de5 Nd7 (9...Ne4 10.a3=+) 10.Be2 (10.cd5 Bd5 11.Nd2 Bb4=) 10...Nc5 (10...Bb4 11.Bc3 Bc3 12.Nc3 dc4 13.0-0 Ne5 14.f4 Qd1 15.Rfd1-/+) 11.0-0 dc4 12.Bc4 (12.Bd4 Bd5=) 12...Be7 (12...Qg5!? 13.g3 Be7=+) 13.Qc2 0-0 14.f3 (14.Rd1 Qe8=) 14...Qe8 15.Nd2 c6 16.a4 cb5 17.ab5 a6 18.Ne4 (better 18.ba6!? Ba6 19.Ba6 Na6 20.Bd4=) 18...ab5 (18...Be4 19.fe4 ab5 20.Ra8 Qa8 21.Bb5 Qe4 22.Qe2-/+) 19.Ra8 Ba8 (19...Qa8 20.Nc5 Bc5 21.Bb5-/+) 20.Be2 (better 20.Bd3!?=+) 20...Ne4-+ 21.fe4 Bg5 (21...Qc6 22.Qd2-/+) 22.Qb3 (22.Bd4 Qc6 23.Qd2 Qe4 24.Bb5 Rd8-/+) 22...Qc6 23.Bd4 Qe4 24.Qb5?? (better 24.Bf3 Bd5 25.Qc3-+) 24...Be3 (24...Qg2) 25.Be3 (25.Rf2 Qg2) 25…Qg2 0-1. AhmedSultanov – tusun, lichess.org, 2019.

6.Nd4 Bb7 7.Nc6 Bc6 8.bc6 Nb8 9.c4 Nc6? (9...a6!?=) 10.Qa4+= Qd7 (10...Qd6 11.cd5 ed5+– (11...Nd5?? 12.Ba3 Ndb4 13.Bb4 Qb4 14.Qc6 Ke7 15.Qa8+–)) 11.cd5+– ed5?? (better 11...Nd5 12.Bb5 Nde7+–) 12.Bb5 0-0-0 (12...Nb4 13.Bd7 Nd7+–) 13.Bc6 Qf5 14.Qa6 (14.Qa6 Kb8 15.Qb7) 1–0. DEFFM – devilachab, freechess.org, 2018.

6.Nd4 Bb7 7.Be2 Bc5 8.0-0 0-0 9.a4 a6 10.c4 (10.f4 Bd4 11.Bd4 Re8=) 10...Bd4 11.Bd4 ab5 (11...dc4 12.Na3=) 12.cb5 c6 13.bc6 Bc6 14.f4 e5? (better 14...Ra5!?=) 15.fe5+/- (15.fe5 Ne4 16.Qc2+/-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.Nd4 Bb7 7.Be2 g6 8.0-0+= Bg7 9.Ba3 (9.a4 a6=) 9...e5 10.Nc6 Bc6 11.bc6 Nb8 Black prepares d4 12.c4 d4 13.Qa4 Ne4 (13...d3 14.Bd1=) 14.Bf3 Nd6 (14...f5 15.Be4 fe4 16.Re1+=) 15.ed4 0-0 (15...e4!? 16.Re1 f5+=) 16.Nc3+– ed4 17.Nb5 Be5 18.Rfe1 f6 (18...Bf4!?+–) 19.Bd5+– Kg7? (better 19...Kh8+–) 20.f4 Bf4 21.Nd4 Re8 22.Re8 Ne8 (22...Qe8 23.Ne6 Kh8+–) 23.Ne6 (23.Ne6 Kh8 24.Nd8 Bd2 25.Qc2 Be3 26.Kf1+–) 1–0. GuestRMKW – GuestFLNX, freechess.org, 2017.

6.Nd4 e5?? 7.Nc6+– 1–0. GuestQWRT – GuestTXBS, freechess.org, 2019.

6.Be2 a6 7.0-0 =.

6.Be2 Bd6 7.0-0 0-0 8.c4 (8.d4 a6=) 8...Bb7 (8...a6 9.d3=) 9.d4 (9.cd5 Nd5 10.d4 a6=+) 9...dc4 (9...a6 10.Nbd2=) 10.Bc4 (10.Nbd2 a6 11.Nc4 ab5 12.Nd6 cd6 13.Bb5 Qe7=) 10...Ne4 (10...a6 11.Ba3=) 11.Nc3 (11.Qc2 Ndf6=) 11...Ng5 (11...Nc3 12.Bc3 a6 13.a4=) 12.Be2 (12.Nd2 e5 13.d5 f6+=) 12...Nf3 (12...a6 13.a4=) 13.Bf3 Bf3 14.Qf3 (< 14.gf3 a6–/+) 14...Qh4 (14...a6 15.Rfc1=) 15.g3 Qh3 (15...Qh6 16.Rfd1=) 16.Ne2 (16.Ne4 a6 17.Nd6 cd6+=) 16...Nf6 17.e4 Ng4 18.Qg2 Qg2 (18...Qh5!? 19.Nc3 a6=) 19.Kg2+= Be7 20.e5 (20.Rfc1 Rfc8+/–) 20...Rfd8 (20...a6 21.Rfc1 Rfc8 22.h3+=) 21.h3 Nh6 22.g4 Rd5 23.a4 Kf8 24.Kg3 Ke8 25.h4 g6 26.f3 Bb4 27.Rfc1+/– Kd8 28.Rc4 Be7 29.Bc1 Ng8 (29...a6 30.Nc3 ab5 31.Nd5 ed5 32.Rc2+/–) ½–½. Schwichtenberg,Juergen – Kaschte,Heinz, GER–ch Seniors, 2001.

6.Be2 Bd6 7.0-0 0-0 8.c4 dc4 9.Bc4 Bb7 10.d4 Bd5 11.Bd3 Ne4 (11...a6 12.ba6 Be4 13.Ba3=) 12.Nc3 f5 (12...Nc3!? 13.Bc3 f5=) 13.Nd5+– ed5 14.Qb3 (14.Rc1 a6+–) 14...Ndf6+= 15.Rfc1 f4?? (better 15...Qe7+=) 16.Be4+– Ne4 (16...fe3 17.Bd5 Nd5 18.Qd5 Kh8+–) 17.Qd5 Kh8 18.Qe4 c5 (18...a6 19.a4+–) 19.bc6 Rc8 (19...Re8 20.Qd3+–) 20.d5 fe3 21.fe3 Rc7 (21...a6 22.Bd4 Ba3 23.Qe5+–) 22.Nd4 Re7 (22...Rcf7 23.Ne6 Qe7 24.Qg4+–) 23.Ne6 Qe8 (23...Qc8 24.Qg4 Rg8 25.Rf1+–) 24.Qg4 Qd7 (24...Rg8+–) 25.cd7 (25.cd7 Bh2 26.Kh2 h5 27.Bg7 Kh7 28.Qh5 Kg8 29.Qh8 Kf7 30.Rf1 Kg6 31.Qh6) 1–0. DEFFM – Thrillers, freechess.org, 2018.

6.Be2 Bd6 7.0-0 a6 8.a4 =.

6.Be2 Bd6 7.0-0 Bb7 8.c4 0-0 9.cd5 Bd5 10.Nc3 Bb7 11.d4 Nd5 12.Bd3 c5 13.bc6 Bc6 14.e4 Nf4 15.Bb1 e5 16.Qd2 ed4 17.Nd4?? (better is 17.Ne2 Ne2 18.Qe2=) 17...Qg5–+ 18.f3 (18.Qf4 Qf4 19.g3–+) 18…Nh3 (18...Nh3 19.Kh1 Qd2–+) 0–1. mr5reasons1 (1675) – ubermensch43 (1635), gameknot.com, 2012.

6.Be2 Bd6 7.Nd4 Bb7 8.f4 Ne4 9.0-0 Ndf6 10.d3 Nc5 11.a4 a5 12.Nd2 Qe7 13.Qe1 0-0-0 14.Nc6 Bc6 15.bc6 h5 16.d4 Nce4 17.Ba6 Kb8 18.Ne4 de4 19.Qe2 Ka7?? (Better is 19...h4+/–) 20.Bb7 (20...Nd5 21.Qa6 Kb8 22.Qa8) 1–0. Krafzik,Joachim (1935) – Frommann,Waldemar, 13sen.WttgEM/Ellwangen, 2001.

6.Be2 Bd6 7.h3 h6 8.0-0 0-0 9.d3 (9.c4 Nc5=) 9...Bb7 10.Nbd2 Re8 (10...a6 11.c4=+) 11.c4= c6 (11...a6 12.Qc2=) 12.a4 (12.bc6 Bc6 13.Nd4 Rc8+=) 12...a5 (12...c5 13.a5=) 13.Qc2 (13.bc6!? Bc6 14.Nd4+=) 13...cb5= 14.ab5 Rc8 15.Rfc1 e5 16.Qd1 (16.d4 Qe7=) 16...Nc5 Black intends e4 (16...e4 17.Ne1=+) 17.d4 (17.Ne5 Be5 18.Be5 Re5+=) 17...e4 (17...ed4!? 18.Bd4 Re6=+) 18.dc5+= ef3 19.Bf3 Bc5 20.Nb3 (better 20.Bf6 Qf6 21.cd5+=) 20...Qd6? (better 20...Bd6+=) 21.Nc5+– Qc5 22.Bf6 gf6 23.cd5 Qb5 (23...Qd6 24.Rc6! Bc6 25.bc6+– (25.dc6?! Qd1 26.Rd1 a4=)) 24.Qd4 Qb4? (better 24...Red8+–) 25.Qf6 Rc1 (25...Rc5 26.Rcb1 Qc4 27.e4+–) 26.Rc1 Rc8 (26...Rf8 27.Qh6 Qb2 28.Qg5 Qg7 29.Qe7+–) 27.Rc8 (better 27.Rd1!? Qf8 28.Qb6 Ba8+–) 27...Bc8 28.Bh5 (better 28.Qh6 b5 29.Qg5 Kh7 30.Qe5+–) 28...Qb1+– 29.Kh2 Qh7?? (better 29...Qf5 30.Qc6 Qd7+–) 30.Qd8+– Kg7 31.Qc8 Qg8 32.Qc7 a4 33.d6 a3 34.Qc3 (34.d7 a2 35.Qg3 Kh7 36.Qg8 Kg8 37.d8Q Kg7 38.Qd4 Kg8 39.Qg4 Kh7 40.Bf7 h5 41.Qg6 Kh8 42.Qh6) 34...f6 35.Qa3 Qd5 (35...Qb8 36.Qd3 Kh8 37.Kg1 Qc8 38.d7 Qc1 39.Bd1 Kg7 40.d8Q Qd1 41.Qd1 f5 42.g4 Kg6 43.Qe7 fg4 44.Qg4) 36.Qa7 Kf8 (36...Kh8 37.Qb8 Kg7 38.Qc7 Kh8 39.d7 Kg8 40.d8Q Qd8 41.Qd8 Kg7 42.Qc7 Kh8 43.Bg6 Kg8 44.Qf7 Kh8 45.Qh7) 37.Qe7 Kg8 38.d7 Qe5 (38...b5 39.Bf7! Qf7 40.d8Q Kg7 41.Qdf8 Kg6 42.Qff7 Kf5 43.Qff6) 39.Qe5 fe5 40.d8Q Kg7 41.Qb6 (41.Qb6 e4 42.Qg6 Kh8 43.Be2 h5 44.Bc4 h4 45.Qh6; 41.Qc7 Kf6 42.Qf7 Kg5 43.Kg3 b5 44.h4) 1–0. Genne,Rene (1725) – Caminade,Lionel, 7th Saint Denis REU, Open, 2015.

6.Be2 Be7 7.0-0 0-0 8.a4 a6 9.c4 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Bb7 13.d4 Nd5 14.Nbd2 c6 15.e4 N5f6 16.Qb1 cb5 17.Bb5 Ne4? (better 17...Nb8+=) 18.Ne4+- Be4 19.Qe4 Nf6 20.Qb1 Nd5 21.Ne5 Bd6 (21...Qd6 22.Bd3 g6 23.Rc1+-) 22.Nd7 Qh4 (22...Re8 23.Nb6! Re7 24.Nd5 ed5 25.Bd3+-) 23.g3 Qg4 (23...Qd8 24.Nf8 Bf8 25.Bd3+-) 24.Nf8 Nf4 (24...Bf8 25.Bc4 Nf6+-) 25.Qh7 (25.Nh7?! Nh3 26.Kg2 Nf4 27.Kg1 Nh3 28.Kg2 Nf4 29.Kg1=) 25...Kf8 26.Qh8 Ke7 27.Qe8 (27.f3 Nh3 28.Kg2 Nf4 29.Kh1 Qf5+-) 27...Kf6 28.d5 e5 (28...Kg6 29.f3 Qf5 30.gf4 Qf4 31.Bd3 Kh5 32.Qh8 Qh6 33.Bh7+-) 29.Qd8 Kg6 (29...Be7 30.Qb6 Kg5 31.f3+-) 30.Qd6 f6 31.f3 Nh3 (31...Qg5 32.Kh1 Nh5 33.Bd3 Kf7 34.Qd7 Kf8 35.Bc3+-) 32.Kg2 Qf5 33.Qe6 Qc2 34.Kh3 Qe2 35.Qe8 Kg5 (35...Kh7 36.Be2 g6 37.Qf8 b5 38.Rc1 g5 39.Bd3 e4 40.Be4 f5 41.Bf5) 36.f4 ef4 (36...Kf5 37.Be2 Ke4 38.Bf3 Kd3 39.Qc6 ef4 40.Qc3) 37.gf4 (37.Be2 f3 38.Bf3 Kf5 39.Qh5 g5 40.Qh7) 37...Kh6 38.Be2 (38.Be2 Kh7 39.Bd3 f5 40.Bf5 Kh6 41.Qg6) 1-0. DEFFM – GuestQVSS, freechess.org, 2021.

6.Be2 Be7 7.0-0 0-0 8.d4 Bb7 9.Nbd2 Qc8 10.c4 dc4 11.Nc4 a6 12.a4 ab5 13.ab5 Ra1 14.Qa1 Qa8 15.Rc1 Qa1 16.Ra1 Ra8 17.Ra8 Ba8 18.Nfe5 Ne5 19.Ne5 Nd5 20.Bc4 f6 21.Nc6 Bd6 (21...Bc6!? 22.bc6 f5+=) 22.Nd8+– Be7? (better 22...f5+–) 23.Ne6+– Kh8 1–0. DEFFM – GuestDWFG, freechess.org, 2018.

6.Be2 Be7 7.0-0 a6 =.

6.Be2 Be7 7.d4 a6=+ 8.a4 0-0 9.0-0 =.

6.Be2 Be7 7.d4 a6=+ 8.a4 a5 9.Nbd2 0-0 10.Qc1 (10.0-0 Bb7=) 10...Bd6 (10...Bb7 11.Ba3=) 11.Ba3 Qe7 (11...Re8 12.c4=) 12.Bd6 Qd6 (12...cd6 13.0-0=) 13.Qb2 Bb7 14.Ne5 (14.0-0 Rae8+=) 14...Rae8 (14...Rac8 15.0-0+=) 15.0-0+= Nb8 (15...c5 16.bc6 Bc6 17.Rfb1+=) 16.Qa3 (16.Bd3 Nfd7+=) 16...Qa3 (16...Rc8 17.c4+=) 17.Ra3 Re7 (17...Nfd7 18.f4+=) 18.f4 h5 (18...Rc8 19.c4+=) 19.h3 (19.c4 Nbd7+/–) 19...g6 (19...Rc8 20.Rc3+=) 20.Ndf3 (20.c4 Rc8+/–) 20...Ne4+= 21.Kh2 Kg7 22.Nd3 f6 23.Nf2 Nd6 24.Nd2 f5 25.Rc3 c6 26.Rb1 Nc8 27.Nf3 Rc7 28.Ne5 c5 29.Rd1 c4+= 30.h4 Nd6 31.Bf3 Nd7 32.Nd7 Rd7= 33.Nh3 Rf6 34.Ng5 Nf7 35.Nf7 Rff7 36.Be2 Bc8 37.Rf1 Rc7 38.Rf3+= Rf6 39.Rg3 Bb7 40.Bh5+/– Kh6 41.Be2 Bc8 42.Rg5 Bd7 43.Ra3 Be8 44.c3 Rg7 45.Ra1+– Bf7 46.Rf1 Be8 47.Rf3 Bf7 48.Rfg3 Be8 49.h5 Kh7 50.h6+– Rg8 51.Rh3 Bf7 52.Bd1 Be8 53.Bc2 Bf7 54.Bd1?? Be8 55.g4 Bf7 56.gf5?? Rf5?? 57.Bg4+– Rf6 58.Re5 Re8 59.Kg3 Rg8 60.Kf3 g5+/– 61.f5 ef5 62.Rf5 Rgg6 63.Kg3 Be6 64.Rf6 Rf6 65.Be6 Re6 66.Kg4 Rg6 67.Rh5 Re6 68.Rh3?? Re4?? 69.Kg5+– (69...Re8 70.Kf4+–) 1–0. Skaug,Thorbjorn – Kolstad,Arvid, NM Roros, 2002.

6.g3 Bb7 7.Bd4 a6 =.

6.g3 Bb7 7.Bg2 Bd6 8.0-0 0-0 9.d3 a6 10.a4 c5 (10...e5 11.c4=+) 11.bc6 Bc6 12.Nbd2 Nc5 13.e4 (better is 13.a5!?=+) 13...de4–/+ (< 13...Ba4 14.e5 Nd3 15.Bd4 Ne5 16.Ne5=; 13...Na4?! 14.Ra4 Ba4 15.e5–/+) 14.Ng5 Na4 (14...e5 15.Nde4 Nfe4 16.Be4 Ne4 17.Ne4–/+) 15.Bf6 gf6 (better is 15...Qf6!? 16.Nge4 Qd4–/+) 16.Nge4=+ f5 17.Ng5 (17.Nd6 Qd6 18.Qh5 f6=+) 17...Qg5–/+ 18.Bc6 Nc3 19.Qe1 Ra7 20.Nc4 Bb4 21.Nb6 Nd5 (21...f4!? 22.Nd7 Rc8=+) 22.Qb1+= Bc3 23.Nd5 Ba1 24.Qb6 Raa8 25.Ba8+– Ra8? 26.Qb7 Qd8?! 27.Ne7 Kf8 28.Ra1 Rb8 29.Nc6 Rb7 30.Nd8 Rb6 31.Ra4 Ke7 32.Rb4 Rb4 33.Nc6 Kd6 34.Nb4 a5 35.Na2 Kc5 36.Kf1 e5 37.Ke2 h5 38.Kd2 e4 39.Ke3 (39...ed3 40.cd3 f4 41.Kf4+–) 1–0. Lorenz,K – Hultin,S, corr SSKK 2–747, 1991.

7.0-0 a6 8.a4 Bd6 9.Nd4 0-0 10.f4 ab5 11.ab5 Ra1 12.Ba1 Qe7 13.d3 (13.Nc6 Bc6 14.bc6 Ra8+=) 13...Ra8 14.Nd2 Nc5 15.Qe1 Qe8 16.Qg3 Ra2 17.N2f3 Qa8 18.Bc3 Qa3 19.Bd2 Na4 20.Qe1 Nd7 21.Qh4 Be7 22.Qh3 Qd6 23.Rb1 Bf6 (23...h6 24.Qg4=) 24.Bb4 Ndc5 25.Qg3 g6 26.Qh3 (26.Ne5 Qd8=) 26...Bg7= 27.Rf1 Qd8 28.Ne5 Qe8 29.g4 (29.Qh4 f6 30.Nec6 Bc6 31.bc6 Na6=) 29...f6+= 30.Nec6 Bc6 31.Nc6 Rc2 32.Bd1 Rb2 33.f5 Rb4 34.Nb4 Qb5 35.g5 ef5 (35...Qb4 36.fg6 f5 (36...hg6 37.gf6 Bf8 38.d4+/–) 37.gh7 Kh8=) 36.Nd5= Qd3 (36...fg5 37.Ne7 Kf8 38.Nf5 Qd3 39.Qh7 gf5 40.Rf5 Ke7 41.Qg7 Kd6 42.Qf6 Kd7 43.Bg4 Qe3 44.Kg2+–) 37.Nf6 Bf6 38.gf6 Nc3 39.f7 Kg7 40.Qh6 Kf7 (40...Kh6?? 41.f8Q Kg5 42.h4 Kh4 43.Qh6 Kg3 44.Qh2) 41.Qh7 Kf6 42.Qh8 Kf7 43.Qh7 Kf6 44.Qh8 ½–½. Nonnenmacher,Thomas (2070) – Zylla,Johannes (2145), BdF T, 2004.

7.0-0 a6 8.ba6 Ba6 9.Ba6 Ra6 10.Qe2 Ra8 11.Nd4 c5 (11...Bd6 12.f4=) 12.Nb5= Be7 13.a4 (13.d3 0-0=) 13...0-0 14.d3 Qc8 15.Nd2 Qc6 16.e4 de4 17.de4 e5 18.Rfe1 Ne8 (18...Bd6 19.Qf3=) 19.Nc4+= Bf6 (19...Qe6!?+=) 20.Red1+– Nc7?? (better 20...Rd8+–) 21.Rd6+– (21.Rd6 Qd6 22.Nbd6+–) 1–0. DEFFM – GuestZQNG, freechess.org, 2018.

7.0-0 Bd6 8.d4 0-0 9.Nbd2 c6 (9...a6 10.a4=) 10.a4 Qc7 11.c4 c5 (11...a6 12.cd5 Nd5 13.bc6 Bc6 14.Nc4=) 12.h3 (12.cd5 Nd5 13.Nc4 a6=) 12...a6 (12...cd4 13.Nd4 Rfd8 14.Rc1=) 13.Qb3 (13.dc5 bc5 14.Qc2 ab5 15.ab5 Qb6=) 13...a5 (13...ab5 14.ab5 cd4 15.Nd4=+) 14.Rac1 (14.cd5 Bd5 15.Qc2 cd4 16.Qc7 Bc7 17.Nd4 Be5=) 14...Qb8 (14...Rfc8 15.Qd1=) 15.Rfd1 (15.cd5 Bd5 16.Qc2 Rc8=) 15...dc4 (15...Rc8 16.Qd3=) 16.Bc4 (16.Nc4 Bd5+=) 16...Nd5 (16...Rd8 17.Qc2=) 17.Ne4 White gets the initiative 17...Be7 18.dc5 Nc5 19.Nc5 bc5 (19...Bc5 20.Nd4+– (20.Bd5?! Bd5 21.Qc3 f6=)) 20.e4 Nb6 21.Be6 Be4 22.Ne5 c4 (22...Bg6!?+–) 23.Bc4+– (23.Bc4 Qe8 24.Re1 Nc4 25.Qc4+– (25.Re4?! Nd2 26.Qe3 Ne4 27.Qe4 Bf6=; worse 25.Rc4 Bd5 26.Nc6 Bc6 27.Rc6 Qd8+–; worse 25.Nc4 Bb4 26.Bc3 Bc3 27.Qc3 Qe7+–)) 1–0. Grund,Karl – Jonsson,Bjorgvin, corr ICCF Cup, 1977.

7.0-0 Bd6 8.d4 Qe7 9.Nbd2 0-0-0 (9...0-0 10.c4=) 10.a4 c6 (10...c5 11.a5+/–) 11.bc6 (11.a5 cb5 12.ab6 a6=) 11...Bc6 12.c4 e5 (12...Rde8 13.cd5 Bd5 14.a5+=) 13.de5 (13.a5 e4 14.Nh4 dc4+–) 13...Ne5 (13...Be5 14.Ne5 Ne5 15.Be5 Qe5 16.a5 dc4 17.ab6=) 14.Qc2 (14.Be5 Be5 15.Ne5 Qe5+/–) 14...Kb7 (14...Nf3 15.Bf3 Qc7 16.Kh1+/–) 15.Rfc1 (15.a5 Nf3 16.Bf3 Qc7+/–) 15...Rc8 (better is 15...Nf3!? 16.Bf3 Qc7+/–) 16.a5+– dc4 17.Ne5 Be5 18.Nc4 (better is 18.ab6!? ab6 19.Be5 Qe5 20.Qc4 Qc7+–) 18...Bb2+/– 19.Qb2 (19.Nb2?! Qe4 20.Qe4 Be4= (20...Ne4? 21.ab6 a5 22.Ra5+/–)) 19...b5 20.a6 Ka8 21.Ne5 Bd7 (21...Bd5 22.Bb5 Rb8 23.Nd3+–) 22.Bf3 Kb8 23.Nc6 (better is 23.Nd7!? Qd7 24.Qe5 Rc7 25.Rc7 Qc7 26.Qb5 Kc8+–) 23...Bc6 24.Bc6 1–0. Kolb,Wolfgang – Torunsky,Robert, Wuerzburg op, 1995.

7.0-0 Be7 8.d3 (8.a4 0-0=) 8...h6 (8...0-0 9.c4=) 9.Nbd2 (9.c4 dc4 10.dc4 a6=) 9...Nc5 (9...a6 10.c4=) 10.Rc1 (10.Bf6 Bf6 11.d4 Ne4=) 10...Na4 (10...a6 11.ba6 Na6 12.c4=) 11.Ba1 (11.Be5 Ba3 12.Rb1 a6+=) 11...Nc5 (11...Ba3 12.Rb1 a6 13.c4 ab5 14.cb5+=) 12.Nd4 (12.Bf6 Bf6 13.d4 Nd7+=) 12...0-0 13.N2f3 (13.c4 Bd6=) 13...Bd6 (13...a6 14.Nc6 Qe8 15.Ne7 Qe7 16.Bf6 Qf6 17.d4=) 14.Nc6 (14.c4 a6 15.cd5 ed5=) 14...Bc6 15.bc6 a5 16.c4 Na6 (16...Re8 17.cd5 ed5 18.Rb1=) 17.cd5+= Nd5 18.Qb3 (18.Qa4 Nc5 19.Qg4 Nf6 20.Bf6 Qf6+=) 18...Nc5 (18...a4 19.Qb2 Nf6 20.Ne5+=) 19.Qb2 Do you see the mate threat? 19...Qf6 (19...f6 20.Qb1+=) 20.Qc2 (20.Qf6 Nf6 21.Bf6 gf6+=) 20...Qe7 (20...Qg6 21.a3=) 21.d4 Nb4 (21...Na6!?+=) 22.Qb1+/– Nca6 23.a3 (better is 23.e4!? Bf4 24.a3 Bc1 25.Rc1+/–) 23...Nd5+= 24.Ba6 (24.a4 Nab4+=) 24...Ra6= 25.Qb5 (25.Qd3 Raa8 26.Bb2 Rad8=) 25...Raa8 26.e4 (26.a4 f5=) 26...Nf4 27.Ne5 (better is 27.a4!?=) 27...Be5 28.Qe5? (28.de5 Qa3 29.Rcd1 Qb4 30.Qb4 ab4–/+) 28...Nd3 (28...Ne2!? 29.Kh1 f6 30.Qb5 Nc1 31.Bb2–+) 29.Qg3–/+ Nc1 30.Rc1 Qg5 31.Qc3 Rad8 32.Re1 f5 33.f4 Qf4 34.d5 0–1. Acevedo,Daiana – Ibarra,Diego, Magistralito Najdorf U14, 2002.

7.c4 Bd6 8.0-0 a6 9.cd5 ed5 (9...Bd5 10.ba6 0-0 11.Nc3=) 10.a4 (10.Nd4 ab5 11.Nf5 Bf8=) 10...ab5 11.ab5 Ra1 12.Ba1 Qa8 (12...0-0 13.Nd4=) 13.Bd4+= Bc5 (13...0-0 14.Qc2+=) 14.Qc2 0-0 15.Rc1 (15.Bc5 bc5 16.d4 c4+=) 15...Re8 16.Nc3 Bd6 17.Qf5 (17.Nh4 Bc5+=) 17...Qa3 18.Rb1 Ne5?? (better is 18...Qa8+=) 19.Ne5 (better is 19.Be5 Bc8 20.Qf4 Re6+–) 19...Be5 (19...Bc8 20.Qg5 h6 21.Qg3+–) 20.Be5 Bc8 (20...Re6 21.Bf3+– (< 21.Bc7 Qe7 22.Bf4 d4 23.ed4 Re2 24.Ne2 Qe2+–)) 21.Qf4 Qe7 (21...Qc5 22.Bd4 Qe7 23.Bf6 Qf6 24.Qf6 gf6 25.Nd5+–) 22.Bf6 gf6 (22...Qf6 23.Qf6 gf6 24.Nd5 Rd8 25.Nf6 Kf8+–) 23.Nd5 Qd8 24.Nf6 Kf8 25.Bc4 Be6 (25...Re6 26.Nh7 Kg7 27.Be6 Be6 28.Qg3 Kh8 29.Ng5+–) 26.Qh6 Ke7 27.Be6 fe6 28.Qg7 Kd6 29.Ne4 Kd5 30.Qd4 1–0. pereira – Sarmad Edward, internet, 2006.

7.Bd4 Bd6 8.0-0 0-0 9.Bb2 e5 10.d4 e4 11.Nh4 g6 12.a4 Ne8 13.g3 Be7 14.Ng2 Ng7 15.f3 f5 16.c4 Nf6 17.Nc3 ef3 18.Bf3 Ne4 19.Nd5 Bd5 20.cd5 Qd5 21.Nf4 Qd7 22.Qb3 Kh8 23.d5 Bf6 24.Be4 fe4 25.Ng6 hg6 26.Rf6 Rf6 27.Bf6 Rf8 28.Rf1 Qd6 29.Qc3 Rf7 30.Bg7 Rg7 31.Rf7 1–0. lucya (2120) – El_Gato_Volador (1650), GameColony.com, 2002.

6.a4 a6 7.c4 (7.Ne5 Bd6=) 7...ab5 (7...Nc4 8.Bc4 dc4 9.Nc3–/+) 8.ab5 (8.cb5!? Bd6 9.a5=) 8...Ra1–/+ 9.Ba1 Bb4 (9...Nc4!? 10.Qc2 Na3 11.Na3 Ba3=+) 10.Qb3= c5 (better 10...Bd6=) 11.bc6!+– bc6?? (better 11...Qe7 12.Bf6 gf6 13.cd5 Nd5+–) 12.Qb4+– 1–0. GuestNPTJ – abadjm, freechess.org, 2018.

6.a4 Nc4 7.Bc4+– dc4 8.Na3 Ba3 (8...Qd5 9.0-0 a6 10.Qe2 Ba3 11.Ba3 ab5 12.ab5+=) 9.Ba3+– b6 10.0-0 Bb7 11.d3 cd3 (11...c5 12.bc6 Bc6 13.e4+–) 12.cd3 Bf3 13.Qf3 (13.gf3?! Nd5=) 13...Rb8 (13...Rc8 14.Qb7+–) 14.Qg3 Rg8 (14...Rc8 15.Rfc1+–) 15.Rac1 Rc8 16.Bb2 Nh5 (16...Nd7 17.Bd4+– (17.Bg7 f5–/+)) 17.Qg4 (17.Qf3 Nf6+–) 17...g6 (17...Nf6!? 18.Bf6 Qf6 19.Qe4+–) 18.Rc6 Qd3?? (better 18...h6+–) 19.Re6! fe6 20.Qe6 Kf8 21.Qc8 Kf7 22.Qc7 Ke6 23.Rc1 Rd8 24.Bd4 (24.g4!? a6+–) 24...Rd4 25.ed4 Qd4 26.Re1 Kf5 27.h3 Qa4 (27...Nf6 28.g4 Ng4 29.Qc8 Kg5 30.Qg4 Qg4 31.hg4 Kf6+–) 28.Qe5 1–0. DEFFM – GuestQFYC, freechess.org, 2018.

6.a4 Nc4 7.Bc4 dc4 8.Qe2 Qd5 (8...a6 9.Qc4 Bd6 10.0-0+–) 9.Bf6 (9.Nc3 Qh5 10.e4 e5 11.Qc4 Bd6+–) 9...gf6 10.Nc3 Qc5 (10...Qf5 11.Qc4 Rg8 12.Qe4+–) 11.0-0 (11.Ne4 Qe7+–) 11...Bd7 (better 11...Rg8!?+=) 12.Ne4+– Qh5?? (better 12...Qf5 13.Qc4 Qg6+–) 13.Nf6+– Ke7 14.Nh5 Kd8 1–0. DEFFM – GuestMJTS, freechess.org, 2018.

6.a4 c5 7.a5 (7.bc6 bc6 8.Ne5 Bd7=) 7...Nbd7 8.c4 Nb8 (8...Bd6 9.Be2=) 9.Be2+= Bd6 (9...a6 10.b6+=) 10.cd5 (10.0-0 0-0+=) 10...ed5= 11.0-0 Bd7 (11...0-0 12.Qc2=) 12.Qb3 (12.Qc2 Qe7+=) 12...c4= 13.Qc3 (13.Qa4 Na6=) 13...Bb5=+ 14.e4 (14.Nd4 Be5=+) 14...Nbd7 (14...de4 15.Nd4 Bd7 16.Qc4–/+) 15.e5 (better 15.ed5 0-0 16.Bc4 Bc4 17.Qc4=) 15...Ne5?? (better 15...Ne4 16.Qc2 Bc7–/+) 16.Ne5+– 0-0 17.Na3 (17.Ng4 Be7+–) 17...Ba6 (17...Re8 18.f4 (worse 18.Nb5 Be5 19.Qe5 Re5 20.Be5 Qe7 21.Bf6 Qf6=) 18...Bc5 19.Kh1=) 18.f4 (18.Ng4 Re8 19.Nf6 Qf6 20.Qf6 gf6+–) 18...b6 (18...Bc5 19.d4 cd3 20.Qc5 de2 21.Rfe1=) 19.Rf3 (19.Bf3 ba5 20.Rf2 Bc5+=) 19...b5? (19...Bc5 20.Kf1=) 20.Nc6 (better 20.Nd7 Be7 21.Nf8+–) 20...Qc7?? (better 20...Bc5 21.d4 b4+=) 21.Ne5 (21.Qf6 Bc5 22.Kh1+–) 21...Bc5 (better 21...b4 22.Qe3 ba3 23.Ba3 Ba3 (worse 23...Qa5 24.Qd4 Qc7 25.Bd6 Qd6 26.Rfa3=+) 24.Qa3 Rfe8–+) 22.d4?? (better 22.Kh1 b4 23.Qc2 ba3 24.Ba3–/+) 22...cd3–+ 23.Kh1 de2 (better 23...b4!? 24.Qc1 de2 25.Nc2–+) 24.Ng4 (24.Nd7 Rfe8 25.Nf6 gf6 26.Qf6 e1Q 27.Rf1 Qf1 28.Rf1 d4 29.Qg5 Kf8 30.Qh6 Ke7 31.Qa6 Rab8–+) 24...d4 (24...Rfe8 25.Nf6 gf6 26.Qf6 e1R 27.Rf1 Rf1 28.Rf1–+) 25.Nf6 gf6 26.Rg3 (26.Qd3 Rfe8 27.Re1 Qa5–+) 26...Kh8 27.Qd3 (27.Qd2 Rfe8 28.Re1 b4–+) 27...Qf4 (27...Rfe8 28.Re1 Qf4 29.Rf3–+) 28.Rf3 (28.Rh3 h6 29.Qe2 Rg8–+) 28...Qe5 (28...Qg4 29.Qe2 Bb7 30.Nb5–+) 29.Re1 Bb7 (better 29...Rfe8 30.Nc2 Bb7–+) 30.Re2 Qh5 (30...Qg5 31.Rh3 h6–+) 31.Bd4? (31.Rf6 Rae8 32.Bd4 Bd4 33.Qd4 Qe2 34.Re6 f6 35.Re2 Re2 36.Kg1 Rg2 37.Kf1–+) 31...Bd4–+ (31...Bf3 32.Bf6 Kg8 33.gf3+–) 32.Qd4 Bf3 33.Qf6 Kg8 34.gf3 Rad8?? (34...Rfe8 35.Rg2 Kf8 36.Qh8 Ke7=) 35.Rg2+– Qg6 36.Rg6 fg6 37.Qe6 Kg7 (37...Rf7 38.Nb5 Kg7 39.Nd6+–) 38.Qe5 (38.Qe7 Kh6 39.Qe3 Kh5 40.Qa7 h6+–) 38...Kh6 (38...Kg8 39.Nb5 Rf3 40.Na7+–) 39.Qe3 Kg7 (39...Kh5 40.Qa7 h6 41.Qb7+–) 40.Nb5 Rd1 (40...a6 41.Nc7 Rd1 42.Kg2+–) 41.Kg2 a6 (41...Rfd8 42.Qa7 R8d7 43.Qb6+–) 42.Nc7 (better 42.Nd6+–) 42...Rc8 (42...Rf7+–) 43.Ne6 (43.Qe7 Kh8 44.Ne6 Rd7 45.Qd7 Rc2 46.Kg3 Rg2 47.Kg2 g5 48.Qe8) 43...Kg8 (43...Kf6 44.Nd4 Rd4 45.Qd4 Ke7 46.Qg7 Ke6 47.Qh7 Kf6+–) 44.Nf4 (44.Qa7 Rc2 45.Kh3 Rd7 46.Qd7 Rh2 47.Kh2 g5 48.Qe8) 44...Rc2 (44...Rd6+–) 45.Kh3 (45.Kg3 Rdd2 46.Qe8 Kg7 47.Qe7 Kg8 48.Ne6 Rg2 49.Kf4 Rc4 50.Ke3 Re2 51.Ke2 Rc2 52.Kd3 Rd2 53.Kd2 g5 54.Qe8) 45...Rdd2 46.Qe6 (46.Qe8 Kg7 47.Qe7 Kg8 48.Ne6 Rh2 49.Kg3 Rh3 50.Kh3 Rh2 51.Kh2 g5 52.Qe8) 46...Kg7 (46...Kf8 47.Qf6 Ke8 48.Qh8 Kd7 49.Qh7 Kd8 50.Qg8 Kd7 51.Qg6 Rh2 52.Kg3 Rhd2+–) 47.Qe7 Kh6 (47...Kg8 48.Ne6 Rh2 49.Kg3 Rh3 50.Kh3 Rh2 51.Kh2 g5 52.Qe8) 48.Qf8 Kg5 49.Ne6 Kh5 (49...Kh5 50.Ng7 Kh6 51.Ne8 Kh5 52.Nf6 Kg5 53.Ne4 Kh5 54.Ng3 Kg5 55.f4) 0–1. GuestRWNC – maximodecimo, freechess.org, 2018.

6.a4 Bd6 7.a5 Nbd7 8.d4 0-0 9.Bd3 Re8 (9...c6 10.Nbd2=) 10.0-0= e5 11.de5 Ne5 12.Ne5 Be5 13.Be5 Re5 14.Nd2 Bf5 (14...Bg4 15.Nf3=) 15.a6 Bd3 (15...b6 16.Nf3 Bg4 17.c4=) 16.ab7+= Rb8 (16...Bf1 A) worse 17.ba8B Bg2 (worse 17...Qa8 18.Qf1 Re7 19.c4+=; 17...Bb5?! 18.Ra7 Qd6 19.Nb3=+) 18.Kg2 Qa8–/+; B) 17.ba8R?! Qa8 18.Qf1 Re7+=; C) 17.ba8Q Qa8 18.Qf1+=) 17.cd3+– Rb7 18.Nf3 Re6 19.Nd4 Reb6 20.Nc6 (20.f4!?+–) 20...Qa8+= 21.Nd4 Ne8 (better 21...Qd8!?=) 22.Qf3+– Qd8 23.Rfc1 Nd6 (23...Qd7 24.Ra5+–) 24.Qd5+– Qe8 25.Nc6 (25.e4 Nb5 26.Nc6 a6+–) 25...Rb5 26.Qf3 Rf5 27.Qd1 Rb2 (27...f6 28.Ra7 Ra7 29.Na7+–) 28.Rc2 Rc2 (28...Rb7 29.Qc1+–) 29.Qc2+– Nb5 30.Na7 Na7 31.Ra7 c6 32.d4 Rb5 33.Qe4! Qb8? (33...Qe4 34.Ra8 Mate attack) 34.g3 h6 (34...g6 35.Qe7 Qf8 36.Qd7+–) 35.Re7 Rb1 (35...Kf8 36.Rd7 Qe8 37.Qc6+–) 36.Kg2 Qb2 (36...Kf8 37.Rd7 Qe8 38.Qc6 g6+–) 37.Re8 1–0. DEFFM – GuestPCHW, freechess.org, 2018.

6.a4 Bd7 7.c4 dc4 (7...Nc4 8.Bc4 dc4 9.Qc2=+) 8.a5 (better 8.Ne5=) 8...Bb5?? (better 8...Nc8=+) 9.ab6+– ab6 (9...cb6 10.Nc3 a6 11.Nb5 ab5 12.Qb1 Ra1 13.Ba1+–) 10.Nc3 (10.Ra8 Qa8 11.Qc1 Qd8+–) 10...Ba6 11.Be2 (better 11.d3+–) 11...Bb4?? (11...b5 12.Qb1 b4 13.Ne4+–) 12.0-0 (better 12.Qa4 b5 13.Qb4+–) 12...0-0+– 13.Ne5 (13.Qc2+–) 13...Qd6 (better 13...b5!?+=) 14.Nc4+– Bc4 15.Bc4 Bc3 (15...c6 16.d4+–) 16.Bc3 Ne4? (16...Nd5 17.Bb2+–) 17.Qc2 (better 17.Bg7 Kg7 18.Qg4 Kh8 19.Qe4+–) 17...Nc3 18.Qc3 Rfd8 19.d4 c5 (19...Ra1 20.Ra1 c5 21.Rd1+–) 20.dc5 (20.Ra8 Ra8 21.Rd1 Rd8+–) 20...bc5 21.Be2 (21.Ra8 Ra8 22.Bd3 Rd8+–) 21...g6 (21...Qe7 22.Ra8 Ra8 23.Rb1+–) 22.Bf3 (22.Ra8 Ra8 23.Rd1 Qc7+–) 22...Rab8 (22...Ra1 23.Ra1 b5 24.Qc2+–) 23.Rfd1 Qe7 (23...Qc7 24.Rd8 Rd8 25.Qc4+–) 24.Rd8 Qd8 (24...Rd8 25.Qb2+–) 25.Qc5 Rc8 (25...b5 26.Qb4+–) 26.Qd4 (26.Qb4 b6+–) 26...Qc7 (26...Qd4 27.ed4 b5 28.Kf1+–) 27.h3 (27.Rb1 b6+–) 27...b5 (27...b6 28.Rb1+–) 28.Ra7 (28.Rb1 Qc4 29.Qd7 Rc5+–) 28...Rb8 (28...Qc1 29.Kh2 Qc2+–) 29.Rc7 (29.Rc7 h6 30.Qf6 Rf8 31.Be4 h5 32.Bg6 b4 33.Rf7 Rf7 34.Qf7 Kh8 35.Qf8) 1–0. GuestSJSZ – GuestTYLM, freechess.org, 2016.

6.a4 Be7 7.d3 a6=+ 8.a5 c6?? (8...Nbd7!? 9.ba6 Ra6=) 9.ba6 (better 9.bc6 bc6 10.ab6 Qb6 11.Be5+-) 9...Nbd7= 10.ab7 Bb7 a5 gets attention 11.Be2 (11.Bc3 0-0=) 11...0-0 (11...Ra5 12.Ra5 Qa5 13.Nbd2=+) 12.0-0 (12.Bc3 Qc7=) 12...c5 (12...Ra5 13.Ra5 Qa5 14.c4=) 13.c4 (13.Qd2 Qc7=) 13...d4 (13...dc4!? 14.Bc3 Qc7=) 14.ed4+- cd4 15.Bd4 Nc5 (15...Ra5!? 16.Nbd2 Ra1 17.Qa1 Qc7+-) 16.Bc3 Qc7 (16...g6 17.Qc2+-) 17.Qc2 (17.Na3 Qf4+-) 17...Ba6 (17...Qf4 18.Nbd2+-) 18.Na3 Rad8 (18...Rfb8 19.Rfb1+-) 19.Nb5 Bb5 (19...Qc8 20.Ne5+-) 20.cb5 Nb7 (20...Nd5 21.b6 Qb7 22.d4+-) 21.Rac1 (21.b6!? Qc6 22.Ne5 Qc8+-) 21...Qd7 (21...Nd5 22.Bd2 Qc2 23.Rc2+-) 22.a6 (22.d4!? Nd5 23.Ne5 Qe8+-) 22...Nd6 23.b6 Rc8 (23...Qb5 24.Ra1 Nd5+-) 24.b7 (better 24.Qb2 Nb5 25.Ne5+-) 24...Rc6 (24...Nb7 25.Ne5 Qc7 26.ab7 Qb7+-) 25.Ne5 Rb8 (25...Rc3 26.Nd7 Rc2 27.Nf8+-) 26.Nc6 (better 26.Nd7 Nd7 27.a7 Nb7 28.ab8Q Nb8+-) 26...Qc6 27.Bf6 Qa6 28.Qc3 (better 28.Be7 Qb7 29.Bd6+-) 28...Qb7 (28...gf6 29.Bf3 Rb7 30.Ra1+-) 29.Be7 (better 29.Bg7 Nf5 30.Be5+-) 29...Rc8 (29...Qe7 30.Qc7 Qc7 31.Rc7 g6+-) 30.Qc8! Nc8 (30...Qc8 31.Rc8 Decoy; 30...Nc8 31.Rc8) 31.Ba3 (better 31.Bf3 Qd7 32.Rc8 Qc8+-) 31...g6 (31...h6 32.Bf3 Qd7 33.Rc3+-) 32.Bf3 Qe7 (32...Qd7+-) 33.Be7 (33.Rc8 Qe8 34.Re8 Kg7 35.Bb2 Kh6 36.Bf6 g5 37.Rg8 g4 38.Bg4 e5 39.Bg5) 33...Kg7 34.Rc7 (34.Rc7 Ne7 35.Re7+-; 34.Rc8 h5 35.Bg5 e5 36.Rb1 e4 37.Rbb8 ef3 38.Rg8 Kh7 39.Rh8 Kg7 40.Rbg8) 1-0. Lance5500 (2725) - azuaga (1915), lichess.org, 2016.

6.d3 Bd7 7.a4 Bb4 8.Nc3 0-0 (8...a6 9.a5 Nc8 10.ba6 Ra6 11.Be2–/+) 9.Be2 Bc3 (9...a6!? 10.0-0 Qe7=+) 10.Bc3+= a6 11.0-0 (11.a5 Nc8 12.ba6 Ra6+=) 11...ab5= 12.ab5 Bb5 13.Ra7?? (13.Ra8 Na8 14.Qb1 Ba6=) 13...Bc6 (better 13...Ra7 14.Bd4 Nfd7–+) 14.Ra8= Qa8 15.Nd4 (15.Qd2 Qd8=) 15...Na4=+ 16.Ba1 Bd7 (16...b6 17.Qe1=+) 17.Qb1 (17.Qd2 Qd8=) 17...c5 (17...e5 18.Nf3 e4 19.Nd2=+) 18.Nb3 (18.Nf3 b5=+) 18...Bc6 (18...Qd8 19.c4=+) 19.Bf6 gf6 20.Qa1 (20.Qe1 b5=+) 20...Kg7 21.f4 Rd8 (21...Rg8 22.Rf3 Qd8 23.Rg3 Kh8 24.Rg8 Kg8 25.Qe1=+) 22.Rf3= d4 23.Rg3 Kf8 (23...Kh8!? 24.Bh5 Qb8=) 24.ed4+– cd4 (24...Nb6 25.Qc3 Na4 26.Qd2+–) 25.Nd4 (better 25.Qa3 Ke8 26.Rg8 Kd7 27.Rg7+–) 25...Qa5?? (25...Qa7!? 26.Qa3 Qc5 27.Qc5 Nc5 28.Nc6 bc6+=) 26.Nc6 (better 26.Ne6 Ke7 27.Nd8 Qd8 28.Qa3 Ke6 29.Bg4 Kd5 30.c4 Kd4 31.Bd1+–) 26...bc6+– 27.Qf6 Qe1 (better 27...Nc3!? 28.Kf2 Qc5 29.Kf1 Qd4+–) 28.Bf1+– (28.Bf1 Rd7 29.f5+–) 1–0. GuestRZGB – Smehta, freechess.org, 2016.

6.Be2 Bd6=.

6.Ne5 Bd6 7.a4 (7.Be2 Nfd7 8.Nd7 Qd7=) 7...0-0+= 8.d3 (8.f4 Nbd7=) 8...a6 9.Nd2 (9.ba6 Ra6 10.a5 Nbd7+=) 9...ab5= 10.ab5 Bd7 (10...Ra1 11.Qa1 Bd7 12.c4=) 11.c4 (11.Ra8 Qa8 12.c4 Qa5=) 11...c5 (11...Ra1 12.Qa1 Qe7 13.Qa7 dc4 14.dc4+= (14.Ndc4? Be5 15.Be5 Nc4 16.dc4 Qb4 17.Ke2 Qc4 18.Kd1 Qb3 19.Kc1 Ng4–+; 14.Nd7 Nfd7 15.dc4 Bb4–/+)) 12.Be2 Qc7 (12...Ra1 13.Ba1 Bc8 14.0-0=) 13.Nd7 (13.f4 Ra1 14.Ba1 Bc8=) 13...Nbd7 (13...Nfd7 14.Nf3+=) 14.Nf3 (14.cd5 ed5 15.Nf3 Ra5=) 14...dc4 Black gets the initiative 15.dc4 Rfd8 (15...e5 16.Nd2+=) 16.0-0 (16.Ra8 Ra8 17.Qd3 Ra2 18.Bf6 Nf6=) 16...e5 17.Qc2 (17.Ra8 Ra8 18.Nd2 e4+=) 17...e4+= 18.Ng5 (18.Bf6 Nf6 19.Ra8 Ra8+=) 18...Bh2 19.Kh1 Be5 20.Ra8 Ra8 21.Be5 (21.Bc1!?+=) 21...Qe5–/+ (21...Ne5?! 22.Ne4 Ne4 23.Qe4=) 22.Nh3 b6 23.Nf4 h5 (23...Ra3 24.Kg1–/+) 24.Rd1 Ra1 (24...h4 25.Kg1–/+) 25.Ra1 (25.Qd2 h4–/+) 25...Qa1 26.Qd1 (better is 26.Kh2–/+) 26...Qe5 (better is 26...Qd1 27.Bd1 Ne5–/+) 27.Nh5= Nh5 28.Bh5 Nf6 (28...Qe6 29.Kg1=) ½–½. Gross,Wilhelm – Merten,Rainer, xii/19, 1985.

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

6.c4 b6 7.d3 Bd6 8.Nbd2 0-0 9.Be2 Bb7 10.0-0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0-0 8.0-0 b6 9.d3 Bb7 10.Nbd2).

6.c4 dc4 (---> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 dc4).

6.c4 Bd6 7.Nc3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Nc3).

6.c4 Bd6 7.Be2 0-0 8.0-0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0-0 10.Be2 Nbd7 11.0-0)

6.a4 Bd6=+ 7.Be2 0-0 8.0-0 Qe7 (8...Nce4 9.d3 Nc5 10.Ne5=) 9.d4 (9.Ne5 Nce4=) 9...Ncd7 (9...Nce4 10.Ba3=) 10.c4 dc4 11.Bc4 e5 (11...Nb6 12.Bd3=) 12.de5 (12.Ne5 Ne5 (< 12...Be5 13.de5 Ne5 14.Ba3+/–) 13.de5 Be5 14.Be5 Qe5=) 12...Ne5 (< 12...Be5 13.Ne5 Ne5 14.Ba3+–) 13.Ne5 Be5 14.Be5 Qe5 15.Nd2 Bg4 16.Be2 (16.Nf3 Qe4 17.Nd2 Qg6=) 16...Be2 17.Qe2 Rad8 (17...Rfd8 18.Rfd1=) 18.Nf3 (18.Rad1 Rfe8=) 18...Qe7 (18...Qe6 19.Rac1 Nd5 20.Rfd1=) 19.Nd4?? (better is 19.Rfd1=) 19…Rd4–+ 0–1. Kolb,Wolfgang – Klovans,Janis (2505), Wuerzburg op, 1995.

6.Be2 Na4 7.Be5 Bd6 8.c4 Be5 9.Ne5 Nc5 (9...Nb2 10.Qc2 Nc4 11.Nc4 dc4 12.Bc4=) 10.d4+= Nce4 11.0-0 0-0 12.Qc2 Nd7 13.cd5 Ne5 (better 13...ed5!? 14.Nd3 Nb8+=) 14.Qe4+– (14.de5?! ed5 15.Nc3 Nc3 16.Qc3 Re8+=) 14...Ng6 15.de6 Be6 (15...fe6 16.Nc3+–) 16.Qb7 Qf6 (16...Bd5 17.Qa6+–) 17.Qc7 Nh4 18.Nd2 Qg5 (18...Bd5 19.g3 Rfc8 20.Qa5+–) 19.Qg3 Qg3 20.hg3 Nf5 21.a4 Rfc8 22.Rfc1 g6 (22...Kf8 23.a5+–) 23.Bf3 Rab8 24.Rc8 Rc8 25.a5 Rc2 (25...Nd6 26.b6 ab6 27.ab6 Kg7+–) 26.b6 ab6 27.a6 Rd2 (27...Kg7 28.a7 Rc8 29.d5+–) 28.a7 b5 (28...Kg7 29.a8Q Bc4 30.g4+–) 29.a8Q White prepares d5 29...Kg7 30.d5 Bd7 (30...Bd5 31.Bd5 h5 32.Bf7 Kf7 33.Ra7 Ke6 34.Qe8 Kd5 35.Qb5 Ke6 36.Qe8 Kf6 37.Qf7 Ke5 38.Ra5 Kd6 39.Ra6 Kc5 40.Qc7 Kd5 41.Qc6 Ke5 42.Qe6) 31.Ra7 b4 32.Rd7 b3 33.Qe8 b2 (33...Nh6 34.Qe5 Kf8 35.Rd8) 34.Rf7 Kh6 35.Qf8 Kg5 (35...Ng7 36.Qg7 Kg5 37.Qf6 Kh6 38.Qh4) 36.Rf5! gf5 (36...gf5 37.Qg7) 37.Qg7 1–0. DEFFM – GuestMLZG, freechess.org, 2018.

6.Be2 Bd6=.

6.a4 a6 7.c4 Bd6 8.Be2 (8.d4 dc4 9.bc6 bc6=) 8...0-0 (8...ab5 9.cd5 cd5 10.ab5 Ra1 11.Ba1=) 9.0-0 e5 10.c5 Nc5 11.Ne5 ab5 12.ab5 Ra1 13.Ba1 cb5 14.d4 (14.Bb5? Qa5 15.Nc3 Be5–+) 14...Nce4 (14...Ncd7 15.Bb5 Qc7 16.Nf3=) 15.Bb5 (15.f3!? Ng5 16.Bb5=) 15...Qa5=+ 16.Qa4 Qa4 17.Ba4 Be6 18.Bb2 (18.Bb3 Ra8 19.Bb2 Ra6–/+) 18...Ra8 19.Bb3 Ra6 20.Bc1 Be5 21.de5 Ng4 (21...Nd7 22.Rd1 Rb6 23.Bc2=+) 22.f4 (22.f3 Nc5 23.Bd5 Ne5=) 22...Nh6 (22...Rc6 23.Re1–/+) 23.Bc2 (23.Rd1 Rc6=+) 23...Rc6 24.Ba4 (24.Be4 de4 25.Rd1=+) 24...Ra6 (24...Rc5 25.Ba3 Ra5 26.Bc2=+) 25.Bc2 Rc6 26.Bd3 (26.Ba4 Rc8–/+) 26...f6 (26...Ng4 27.Be4 de4 28.h3=+) 27.ef6 (27.Bb2 Bf5=+) 27...Nf6 28.Bb5 (28.Bb2 Bf5 29.Bf5 Nf5 30.Bf6 gf6=+) 28...Rc5 29.Na3 (29.Be2 Ne4=+) 29...Ne4 (29...Rc3 30.Nb1 Rb3 31.Na3–/+) 30.Bb2 Nc3 31.Rc1 Ne4 (31...Rb5 32.Bc3 Rc5 33.Bb2 Rc1 34.Bc1=+) 32.Rc5= Nc5 33.h3 Nf5 34.g4 Nd6 (worse 34...Ne3 35.Bd4 Ng4 36.Bc5+– (36.hg4?! Nb3 37.Be5 Bg4=)) 35.Bd4 Bd7 (35...Nce4 36.Bd3=) 36.Bc5 (36.Bd7 Nd7 37.Nc2 Nb5=) 36...Nb5 37.Nb5 (37.Nc2 Nc3=) 37...Bb5 38.f5 Bd7 (38...Bd3 39.Kg2=) 39.Kf2 Kf7 (39...Ba4 40.Kf3=) 40.Kf3+= Ba4 41.Kf4 (41.e4 de4 42.Ke4 g5+=) 41...Bb5 (41...Bc2 42.Bb6=) 42.Ke5 Bc4 (42...Bf1 43.h4+= (worse 43.Kd5 Bh3 44.Ke4 Bg4–/+)) 43.g5 Bd3 44.h4 (44.Kd5 Bf5 45.h4+=) 44...g6 (44...Be4!?+=) 45.f6+– Be4 46.Bb6 Bg2 (46...Bf3 47.Kd6+–) 47.Bd4 Bf3 (better 47...b5 48.Kd6 b4+–) 48.Bb6 (48.Kd6 b5 49.Kc5 Be2+–) 48...Bg2 49.Kd6 Bf3 50.Bd4 Bg2 (50...b5 51.Bc3+–) 51.Kc5 Be4 52.Kb6 Bf5 53.Kb7 Be4 (53...Bd3 54.Kc7+–) 54.Kc7 (54.Kb6 Ke6+–) 54...Ke6 (54...Kf8 55.Kd7 Kf7 56.Kd8+–) 55.Kd8 Kf7 56.Kd7 Bf5 (56...Bf3 57.Kd6+–) 57.Kd6 Be4 58.Ke5 Bg2 (58...Bf3 59.Bc3+–) 59.Bb2 Bf3 60.Kf4 (60.Kd6 Bg2+–) 60...Be2 (60...Be4!?+–) 61.e4+– Bc4 (61...de4 62.Ke4 Ke6 63.Kd4+–) 62.e5 Ke6 (62...Bd3 63.Ke3 Bf5 64.Kd4+–) 63.Bc3 (63.Ke3 Bb5+–) 63...Be2 (63...Bb5 64.Ke3+–) 64.Ke3 Ba6 65.Kd4 Bc4 (65...Bf1 66.Kc5+–) 66.Bb2 (66.Kc5 Bf1+–) 66...Bf1 (66...Bb5 67.Kc5 Bd3 68.Bd4+–) 67.Kc5 Bg2 68.Bd4 Bh3 (68...Be4 69.Kc6+–) 69.Kc6 Bg2 70.Kc7 Kf7? (better 70...Bf1+–) 71.Kd6 Bh3 72.Kd5 Bf5 73.Kd6 Bh3 74.Bc5 Bg4 (74...Be6+–) 75.Bd4 Bc8?? (75...Bh3 76.Be3 Be6+–) 76.Be3 (76.Kc7 Bf5+–) 76...Bh3 (76...Be6 77.Kc7+–) 77.Kd5 (77.Kc7 Ke8+–) 77...Bf5 78.Bd4 Bc8 79.Bc5 Bb7 80.Kd6 Bc8 81.Bb6 (81.Kc7 Bf5+–) 81...Bg4 82.Bd8 Be6 83.Kc5 (83.Be7 Bf5+–) 83...Bf5 (83...Ke8 84.Bb6+–) 84.Kd5 Bg4 85.Bb6 Bf5 86.Bf2 Bd7 (86...Bg4 87.Kc6+–) 87.Bc5 Bh3 88.Kd6 Be6?? (88...Bg4 89.Kc7+–) 89.Bd4 (89.Kc7 Ke8+–) 89...Bf5?? (better 89...Bh3=) 90.Bf2 (90.Kc7 Ke8+–) 90...Bh3 (90...Be6 91.Kc7+–) 91.Ba7 (91.Bg1 Bf5+–) 91...Bg4 (91...Bf5+–) 92.Bd4 (92.Kc7 Ke8+–) 92...Bf5 93.Be3 Bc8?? (93...Bh3 94.Kc7+–) 94.Bc5 (94.Kc7 Bf5+–) 94...Be6 95.Ba7 (95.Kc7 Ke8+–) 95...Bg4 96.Bf2 Bh3 97.Bd4?? (better 97.Kc7+–) 97…Bf5= ½–½. Anonymous – lichess AI level 6, lichess.org, 2020.

6.a4 Bd6 7.Be2 0-0 8.d4 a6 (8...Qc7!?=+) 9.Nbd2= ab5 10.ab5 Ra1 11.Qa1 Qe7 (11...Qc7 12.0-0 Ne4 13.Ne4 de4 14.Nd2 Bh2 15.Kh1=+) 12.c4 cb5 13.c5 Bc7 14.Bb5 e5 15.0-0 (15.de5 Ne4=) 15...e4= 16.Ne1 Bh2 (16...Ng4!? 17.g3 Nb8=) 17.Kh2+= Ng4 18.Kg1 Qh4 19.Ndf3 ef3 20.Nf3 Qh5 (20...Qh6 21.Bc1 Ndf6 22.Qa2+=) 21.Qa8+- Ndf6 (better 21...Ngf6+-) 22.Ba3 Bf5?? (22...Qf5+-) 23.Qf8!! (23.Qb7?! Ne4 24.Bb4 Ng5+/-) 23...Kf8 24.c6 Kg8 25.cb7 h6 26.b8Q Kh7 27.Qc7 Ne4 28.Be7 f6 (28...Be6+-) 29.Bf8 Qg6 30.Nh4 Qg5 31.f4 (31.f4 Nc5 32.dc5 Ne5 33.fg5 Bd7 34.Bd7 Kh8 35.Bh3 Nd7 36.Qd7 hg5 37.Qg7) 1-0. DEFFM – GuestLGJJ, freechess.org, 2021.

6.a4 Be7 7.c4 dc4 8.Bc4 cb5 9.ab5 Nb6 10.Be2 0-0 11.0-0 Bd7 (11...a5 12.Nc3=) 12.Ne5 (12.d4 Nbd5=) 12...Qc7 (12...Nfd5 13.Nc3=) 13.Nd7 (13.d4 Nfd5+=) 13...Nbd5?? (better 13...Qd7 14.Bd4 Nfd5=) 14.Nf8+– 1–0. GuestSBKR – GuestBBDC, freechess.org, 2018.

6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

6.d4 0-0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0-0 7.d4).

6.d4 0-0 7.Bd3 a6 A) 8.a4 c5 (8...c6 9.Nbd2 c5 10.dc5 Nc5 11.0-0 Qe7 12.Be5 Be5 13.Ne5 Nd3=; 8...ab5 9.ab5 Ra1 10.Ba1 c6 11.bc6 bc6 12.0-0 c5 13.dc5 Nc5=; 8...Qe7 9.0-0 e5 10.de5 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nd2 Bg4+=) 9.dc5 Nc5 10.0-0 Qe7 11.ba6 ba6 12.Be5 Be5 13.Ne5 Qc7+=; B) 8.Ba3 Ba3 (8...ab5 9.Bd6 cd6 10.0-0 b4 11.c3 e5 12.Nfd2 bc3 13.Nc3 Re8+=; 8...e5 9.de5 Ne5 10.Bd6 Qd6 11.ba6 Nd3 12.cd3 Qa6 13.0-0 Bg4+=) 9.Na3 Qe7 10.Qc1 e5 11.de5 Ne5 12.Ne5 Qe5 13.ba6 b6+=; C) 8.ba6 b6 (8...ba6 9.Nbd2+= Rb8 10.Rb1 c5 11.dc5 Nc5 12.0-0 Nfd7 13.Be2 Qc7+=) 9.Qe2 Nb8 10.a7 Ra7 11.0-0 Ba6 12.Ba3 Bd3 13.Qd3 c5+=.

6.d4 0-0 7.Bd3 c5 8.bc6 bc6 9.c4 =+.

6.d4 0-0 7.Bd3 c6 A) 8.Nc3 c5 (8...e5 9.de5 Ne5 10.Ne5 Be5 11.Rb1 cb5 12.0-0 a6 13.Ne2 Re8+=; 8...Qc7 9.0-0 c5 10.dc5 Nc5 11.Be2 Rd8 12.Rb1 e5 13.Nd5 Nd5+=; 8...a6 9.bc6 bc6 10.0-0 c5 11.dc5 Nc5 12.Rb1 Rb8 13.Ne2 Rb2+=) 9.dc5 Nc5 10.0-0 e5 11.Be2 Be6 12.Ng5 Qc7 13.h3 Rad8+=; B) 8.a4 c5 (8...a6 9.0-0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qc7 13.Bb2 Nb6=; 8...Qc7 9.Nbd2 a6 10.c4 ab5 11.ab5 Ra1 12.Qa1 dc4 13.Nc4 Bb4=; 8...Qe7 9.0-0 e5 10.de5 Ne5 11.Be5 Be5 12.Ne5 Qe5 13.Nd2 Bg4=) 9.0-0 c4 10.Be2 Re8 11.Ba3 Bc7 12.Nbd2 a6 13.Re1 Ba5=; C) 8.0-0 cb5 9.Bb5 a6 10.Bd3 Qc7 11.a4 Ng4 12.h3 Nh2 13.Nh2 Bh2=.

6.d4 0-0 7.Bd3 Qe7 8.Ne5 (8.0-0 a6 (8...e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Qe5 12.Nd2 Bg4 13.Nf3 Qh5=; 8...c6 9.bc6 bc6 10.Ne5 Bb7 11.Nd7 Nd7 12.Nd2 c5 13.Ba3 Rab8=; 8...c5 9.bc6 bc6 10.Ne5 Bb7 11.c4 c5 12.Qc2 dc4 13.Nc4 cd4=) 9.ba6 b6 10.Qe2 c5 11.c4 Ba6 12.cd5 Bd3 13.Qd3 ed5+=; 8.Nbd2 c6 (8...a6 9.ba6 b6 10.Qe2 c5 11.e4 c4 12.Bc4 dc4 13.e5 Ba6+=; 8...c5 9.bc6 bc6 10.Rb1 c5 11.c4 cd4 12.ed4 Ba6 13.Ne5 dc4=; 8...e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Qe5 12.0-0 Bg4 13.Nf3 Qh5=) 9.bc6 bc6 10.Rb1 c5 11.dc5 Nc5 12.Be5 Be5 13.Ne5 Qc7+=; 8.c4 dc4 9.Bc4 e5 10.de5 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nd2 Rd8+=) 8...Be5 (8...Bb4 9.c3 Bd6 10.c4= Ne5 11.de5 Bb4 12.Bc3 Nd7 13.cd5 ed5=; 8...Ne4 9.0-0 a6 10.ba6 ba6 11.Nd2 Bb7 12.Rb1 Rab8 13.Qe2 Nd2=; 8...a6 9.ba6 b6 10.Nc6 Qe8 11.Qe2 e5 12.Ba3 e4 13.Bb5 Ba3+=; 8...a5 9.0-0 Rd8 10.Nd2 a4 11.c4 a3 12.Bc3 Qe8 13.f4 Be7+=) 9.de5 Ne8 (9...Ne4 10.0-0 (10.Qh5 Qb4 11.Bc3= Qc5 12.Bd4 Qb4 13.Ke2 f5=) 10...Nec5 11.Qh5 Nd3 12.cd3 c5 13.bc6 bc6=) 10.0-0 (10.Ba3 Nc5 11.Qh5 f5 12.0-0 a6 13.ba6 b6+=) 10...f6 (10...Nc5 11.Ba3 f6 12.Qh5 g6 13.Qh4 a6+=) 11.Qh5 f5 (11...h6 12.Ba3 Nc5 13.Qg6+/– f5+/–; 11...g6 12.Qh4 a6 13.a4 ab5+=) 12.Ba3+/– Nc5 13.Nd2 (13.c4 b6+/–) 13...b6+= 14.Nb3 a6 15.Bb4 Bb7 (15...ab5 16.Bb5 Ba6 17.Ba6 Ra6 18.Qe2+/–) 16.a4 a5 17.Ba3 c6 18.Rfb1 Nc7 19.bc6 (19.Nc5 bc5 20.b6 Na6+/–) 19...Bc6 20.Nd4 Be8 21.Qe2 Rb8 22.Bb5 (22.Nb3 Ra8+/–) 22...Nb5 (22...f4 23.ef4 Rf4 24.Qd2+=) 23.Nb5 (23.ab5 f4+=) 23...Bb5= 24.Rb5 Qc7 25.f4 Rfc8 (25...Na4 26.Bd6 (worse is 26.Bf8 Nc3 27.Qd3 Nb5–/+) 26...Nc3 27.Qd3 Nb5 A) 28.Bf8? Qc3 (worse is 28...Rf8 29.Qb5 Ra8 30.Qa4–+) 29.Qc3 Nc3–+; B) 28.Bc7 Nc7 29.Qa3=) 26.Bc5+= bc5 27.Rab1 (27.c4!?+=) 27...c4= 28.Qd2 Rb5 29.Rb5 Ra8 (29...c3 30.Qd4=) 30.Qd4 (better is 30.Rd5!? c3 31.Qd4+/–) 30...Ra6 (30...Rb8 31.Kf2+=) 31.Kf2 h6 32.Qb2 Kh7 33.Rb7 Qc6 34.Qb5 Qb5 35.Rb5 Kg6 36.Ke2 (36.h3 h5=) 36...Kh5 37.Rb7 g5 38.g3 Kg4 39.Rh7 gf4 (better is 39...Kh5!?=) 40.ef4+/– (worse is 40.gf4 h5=) 40...Kh5 41.Rg7 (41.Rd7 Rb6 42.Rd6 Rb2+/–) 41...Rb6+= 42.Ra7 (42.Kd2 Rb1 43.Kc3 Rh1+=) 42...Rb2 (42...Rb1 43.Ra5 Rh1 44.Ra6 Rh2 45.Kf3 Rc2 46.Re6=) 43.Kd2+= d4 44.Kc1 (44.Rc7 Rb4+=) 44...Ra2= 45.Ra5 (45.Ra6 Ra4 46.Re6 Ra1 47.Kb2 Rh1=) 45...d3 (45...Kg4 46.Ra6 c3 47.Kb1=) 46.cd3 cd3 47.Ra6 Kg4 48.Re6 Kf3 49.Rd6 Ke2 50.e6 (50.Rh6?? d2 51.Kb1 Ra3–+) 50...Ra4 51.e7 Rc4 52.Kb2 Re4 53.Rd7 Re6 ½–½. Lammi,Jyri (2200) – Koskela,Niina (2275), TCh–FIN, 2001.

6.d4 a6 7.Ba3 Ba3 8.Na3 Qe7 =+.

6.d4 a6 7.ba6 ba6 8.Nbd2 =+.

6.d4 a6 7.ba6 b6 8.Bb5 0-0 =+.

6.d4 a6 7.ba6 b6 8.Bd3 Ba6 9.Qe2 Bb7 (9...Bd3 10.Qd3 Ra5 11.c4=+) 10.c4 (10.0-0 0-0=+) 10...0-0 (10...dc4 11.Bc4 0-0 12.0-0=+) 11.0-0 dc4 12.Bc4 Ne4 (12...Ra5 13.Rc1=+) 13.Bd3 Qf6 (13...Bd5 14.Nc3 Nc3 15.Bc3=) 14.Qc2 Qg6 15.Nbd2 f5 16.Nc4 Bd5 17.Rfc1 Ra7 (17...Ng5 18.Ng5 Qg5 19.f4=) 18.a4 Rfa8 19.Nd6 Nd6 20.Be2 c6 21.Nh4 Qe8 22.Nf3 Qe7 (22...Ne4 23.Ne1=) 23.Bf1 (23.Ba3 b5=) 23...Qd8 (23...Ne4 24.Ba3 Qf6 25.Bb2=) 24.Ne1 ½–½. Luzuriaga,Norberto H (1700) – Woelfelschneider,Peter (1700), TT–02 TSC, 2002.

6.d4 Ne4 7.Bd3 f5 8.c4 c6 9.0-0 0-0 10.Nbd2 g5 11.Ne5 Qf6 12.f4 Be5 13.de5 Qg6 14.bc6 bc6 15.Nf3 g4 16.Nd4 Bb7 17.Rb1 g3 18.hg3 Ng3 19.Rf3 c5? (Better is 19...Ne4!?+=) 20.Ne6!+– Qe6 21.Rg3 Kh8 22.Qh5 Rf7?? (Better is 22...Rae8+–) 23.Qf7! Qf7 24.e6 Qf6 25.Bf6 Nf6 26.Rb7 1–0. Diaz Lombardo,Isidro (2045) – Araiza,Fernando (2065), Mexico DF Mercenarios FIDE–42, 1999.

6.Be2 0-0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0-0 6.Be2 Nbd7).

6.Be2 e5 7.0-0 0-0 =+.

6.Be2 e5 7.0-0 c5 8.d3 Qc7 9.Nbd2 Nb6 10.e4 Na4 11.Qc1 d4 12.Nc4 Nh5 13.g3 Nf6 14.c3 Nd7 15.cd4 ed4 (< 15...Nb2 16.dc5 (16.Qb2?! ed4 17.Rac1 Be7=+; 16.Nd6?! Qd6 17.dc5 Nc5 18.Qb2 Bg4+/–) 16...Nc4 17.cd6 Qd6 18.dc4+/–) 16.Qc2 Nb2 17.Qb2 0-0 18.a4 Re8 19.a5 Be7 20.Rfb1 b6 21.ab6 Nb6 22.Nfe5 Be6 23.Ra6 Reb8 24.Bf3 Bc8 25.Ra3 Nc4 26.Nc4 Bd7 27.Ra5 Be6 28.Rba1 Bc4 29.dc4 Rb6 30.Bg2 a6 31.Ra6 Raa6 32.Ra6 Rb8 33.f4 f6 34.Bh3 Bd6 35.Be6 Kh8 36.Qa3 Qd8 37.Bd5 Qd7 38.Kg2 Qg4 39.Qf3 Qd7 40.h4 Bc7 41.Ra7 Qd6 42.h5 h6 43.Qg4 d3 44.Qd1 d2 45.Qd2 Qd8 46.Qe3 Qd6 47.Qa3 Qd8 48.Qa6 Bb6 49.Rb7 Qd6 50.Rb8 Qb8 51.Qb7 Qb7 52.Bb7 Bc7 53.Bd5 Kh7 54.Kf3 g6 55.e5! fe5 56.Be4 Kg7 57.Bg6 Kf6 1–0. Meyer,Torben – Schueller,Rudolf (1865), T0076 DESC, 2003.

6.Be2 e5 7.c4 e4 8.Nd4 Ne5 (8...dc4 9.Bc4 Ne5 10.Be2=+) 9.cd5= Nd5 10.0-0 (10.f4 Ng4 11.Qc2 Ngf6=) 10...Qg5 (10...Qh4 11.g3 Qe7 12.Nc3 Nc3 13.Bc3=) 11.f4= ef3 12.Nf3 Nf3 13.Rf3 (13.Bf3 0-0=) 13...Be5 (13...0-0 14.Nc3=+) 14.Nc3 (14.Be5 Qe5 15.d4 Qd6=) 14...Nc3 (14...Be6=) 15.dc3 (15.Bc3!? Bc3 16.dc3=) 15...0-0 (15...Bg4 16.Rf2 Rd8 17.Qc2=+) 16.Qc2 (16.h3 Be6=+) 16...Bg4 17.Raf1? (better 17.Rf2!?=+) 17...Bf3 (17...Qh6 18.g3 Bf3 19.Rf3–+) 18.Rf3 h5 (better 18...Rad8–+) 19.Rf5? (better 19.Qe4 Rfe8 20.Qb7–/+) 19...Qe3–+ 20.Kh1 Bf4 (20...Rad8!? 21.Ba3 Rfe8 22.Bc4–+) 21.Rh5 Rfe8 (better 21...Bh6!? 22.Rh3 Qe6–+) 22.Qh7=+ Kf8 23.Ba3 Bd6 24.Qh8 Ke7 25.Bd6?? (25.Qg7 Kd8 26.Qf6 Qe7 27.Qe7 Ke7 28.Bd6 Kd6 29.Rh6 Kc5 30.Rh5 Kb6 31.Bf1=+) 25…cd6–+ (25...cd6 26.Re5 Qe5–+) 0–1. GuestMVNT – GuestCTWX, freechess.org, 2018.

6.Be2 e5 7.d4 e4–/+ 8.Nfd2 0-0 9.c4 (9.Ba3 Nb6=+) 9...dc4 10.Nc4 (10.0-0 a6 11.Nc4 Bb4=) 10...Nb6 (10...Bb4 11.Bc3 Qe7 12.Qd2 Bc3 13.Nc3=) 11.Nd6= cd6 (11...Qd6 12.Ba3 c5 13.Bc5+–) 12.0-0 Be6 13.Nd2 Rc8 14.a4 (14.f3 Nc4 15.Bc4 Bc4 16.Nc4 Rc4+=) 14...Nbd5 15.Qb1 Qa5 (15...Bf5 16.Rc1=) 16.Nc4 (16.Ne4!? Ne4 17.Qe4+=) 16...Qb4= 17.Rc1 Nf4 18.ef4 Bc4 19.Bc4 Rc4 20.Rc4 Qc4 21.Ra3 Qe6 (21...d5 22.Qe1=+) 22.Re3 Qf5 23.g3 (23.b6 ab6 24.Bc3 Nd5–+) 23...Re8 24.Qe1 Nd5 25.Re2 Qg6 26.Bc1 Qe6 27.Rc2 Qg4 28.Be3 Qh5 29.Qc1 Qf5 30.Kg2 Qg4 31.h3 Qd7 32.Rc4 Qe6 33.Rc2 f5 34.a5 Qd7 35.Qb2 Qf7 36.Qa2 Rf8 37.Qc4= ½–½. Schalkwijk,Peter – Just,Bent, internet, 2002.

6.Be2 Qe7 7.a4 c5 (7...0-0 8.Nc3+=) 8.c4 dc4 (8...0-0 9.Nc3=) 9.Bc4 (9.Na3 c3 10.Bc3 e5=) 9...Nb6 10.Be2 a5 (10...e5 11.d3 0-0 12.Nbd2=) 11.Na3 (11.ba6!? ba6 12.Bf6 gf6 13.Nc3=) 11...e5= 12.Nc4 Nc4 13.Bc4 0-0 14.0-0 e4 15.Bf6 (15.Ng5 h6 16.Bf6 gf6+=) 15...Qf6–/+ (worse is 15...gf6 16.Nh4=) 16.Ne1 Qh4 (16...Bf5 17.f3 Qe7 18.fe4 Be4 19.Qh5+=) 17.g3+= Qh3 (17...Qg5 18.f3 h5 19.fe4=) 18.Ng2 (18.f3 Be6 19.Rc1 Qh5=) 18...Bg4+= 19.Be2 Be6 (19...Bf5 20.Nf4 Bf4 21.ef4+=) 20.Nf4 (20.f3!? Bd5 21.fe4 Be4 22.Bf3=) 20...Bf4+= 21.ef4 f5 (21...Rad8 22.Qc2+=) 22.Qc2 Rf6 (22...b6 23.f3=) 23.f3+= (23.Qc5 Rh6 24.Qc8 Rc8 25.Bh5 Rh5 26.Rfc1 Qh2 27.Kf1 Qh1 28.Ke2 Qf3 29.Kf1 Rh1) 23...Rg6 (better is 23...b6!?+=) 24.Rf2+/– ef3 (24...b6!? 25.fe4 Rd8+/–) 25.Bf3+– Rd8 (25...h5 26.Bb7 Rd8 27.Re1+– (27.Qc5?! h4+–)) 26.Qc5 Rc8 (26...Qh4 27.Bb7 Qf6 28.Rc1+–) 27.Qd4 (27.Qb6 Kf8 28.Qd6 Kg8 29.Bb7 Rf8+–) 27...Qh6? (27...Qh4 28.Bb7 Qd8 29.Qd8 Rd8 30.Re2+–) 28.d3 (better is 28.Bb7!? Rf8+–) 28...Bf7 29.Qd7 Be6? (29...Rf8 30.Bb7 Re6+–) 30.Bd5 Rf8 31.Qb7 Bd5 32.Qd5 Kh8 33.Rc1 Rd6 34.Qf3 Qf6 35.Qe3 Re6 36.Qd2 Qd4 37.Rc4 Qa1 38.Rf1 Qa3 39.Qc3 Qc3 40.Rc3 Rg8 41.Rfc1 1–0. Bouvier,Clement (1770) – Clere,Philippe (1760), 8e Tournoi d'Automne – Tournoi B, 2009.

6.g3 0-0 7.d4 a6 8.a4 Nb6 (8...c5 9.dc5 Nc5 10.Nbd2+=) 9.Nbd2 ab5 10.ab5 Na4 (10...Ra1 11.Qa1 Bd7 12.Bd3=) 11.Qc1 (11.Ba3 Nc3 12.Qc1 Bd7+=) 11...Bd7 12.Bd3 (12.Ne5 Qe8 13.c4 dc4 14.Nd7 A) 14...Nb2?? 15.Nf6 gf6 16.Ra8 (worse is 16.Qb2 Ra1 17.Qa1 Qb5+–) 16...Qa8 17.Qb2+–; B) 14...Qd7 15.Bc4 Nb2 16.Qb2 Ra1 17.Qa1 Bb4=) 12...Qe8 13.0-0 (13.e4 Bb5 14.e5 Bd3 15.cd3 Qb5=) 13...Bb5–/+ 14.c4 dc4 15.Nc4 Bc4 16.Bc4 Qc6 17.Nd2 Bb4 (17...Rfd8 18.Ba3–/+) 18.Bb3 (18.Ba3 Bd2 19.Qd2 Qc4 20.Bf8 Rf8–/+) 18...Nb2 (18...Qc1 19.Bc1 b5 20.Bc2–+) 19.Ra8–/+ Ra8 Black is in command 20.Qb2 Qc3 21.Qc3 Bc3 22.Nc4 (22.Rd1 b5 23.Nb1 Bb4–/+) 22...b5–+ 23.Ne5 c5! 24.Rc1 (24.dc5 Theme: Deflection from e5 24...Be5) 24...cd4 25.Nc6? (better is 25.Nf3–+) 25...Bd2 26.Rc2 (26.Rd1 de3 27.fe3 Be3 28.Kf1 Bb6–+) 26...de3 27.fe3 Be3 28.Kf1 g6 29.Ne5 Ra3 30.Rc8 Kg7 31.Bd1 (31.Rc7 Ra7 32.Rc8 b4–+) 31...Nd5 32.Be2 b4 33.Rb8 Bd4 34.Nc4 (34.Nc6 Bc5–+) 34...Ra1 35.Kg2 Ra2 36.Kf3 (36.Kf1 Nc3 37.Bd3 Rf2 38.Ke1 Nd5–+) 36...Nc3 37.Bd3 (37.Rb4 Re2 38.Rb2 Rb2 39.Nb2 e5–+) 37...Rf2 38.Kg4 Rh2 (38...Rh2 39.Ne3 Be3–+; 38...h5 39.Kh3 g5 40.g4–+) 0–1. Biberger,Hans – Klovans,Janis (2465), Wch Seniors Grieskirchen, 1998.

6.g3 e5 7.Be2 –/+.

7.Nc3 c5 8.bc6 bc6 9.Be2 Rb8 10.Rb1 e5 11.0-0 Qc7 12.h3 Rb4 13.d4 Re8 +=.

7.Nc3 Nc5 A) 8.d4 Nce4 (8...Ncd7 9.Ba3 Ne4 10.Qd3 Ba3 11.Ra3 Nd6 12.Be2 a6 13.Ra2 Nb6=) 9.Ne4 de4 10.Ne5 Nd5 11.Ba3 Qe7 12.Nc4 Ba3 13.Ra3 a6+=; B) 8.a5 a6 (8...Re8 9.Be2 e5 10.Ne5 Be5 11.d4 Bd4 12.Qd4 Ne6 13.Qh4 a6=; 8...e5 9.d4 ed4 10.Qd4 Be6 11.Be2 Re8 12.0-0 a6 13.Rfd1 Qe7=; 8...Nce4 9.Be2 Nc3 10.Bc3 Ne4 11.Bb2 a6 12.ba6 ba6 13.0-0 Rb8=) 9.Be2 Bd7 10.ba6 Na6 11.0-0 c5 12.Nb5 Bb5 13.Bb5 Nb4+=; C) 8.Ne2 a6 (8...Qe7 9.Be5 Be5 10.Ne5 Ncd7 11.d4 Ne4 12.f3 Ne5 13.de5 Nc5+=; 8...Re8 9.Be5 Nce4 10.Ng3 Qd7 11.Ne4 de4 12.Bf6 ef3 13.Bc3 fg2=; 8...Rb8 9.Ba3 Qe7 10.d4 Nce4 11.Bd6 Qd6 12.Nf4 Qb4 13.Nd2 c5+=) 9.Be5 Nce4 10.Ng3 Ng4 11.Ne4 de4 12.Bd6 cd6 13.Ng1 Nf6+=; D) 8.Be2 Rb8 (8...Qe7 9.0-0 a6 10.d4 Nce4 11.Ne4 Ne4 12.c4 Qf6 13.Qc2 b6+=; 8...h6 9.0-0 Qe7 10.a5 a6 11.d4 Nce4 12.ba6 ba6 13.Ne5 Nc3=; 8...Kh8 9.0-0 Kg8 10.a5 Qe7 11.d4 Ncd7 12.Nb1 a6 13.c4 dc4=) 9.0-0 Qe7 10.a5 Re8 11.d4 Ncd7 12.Nb1 e5 13.de5 Ne5=.

7.Nc3 e5 A) 8.Be2 a5 (8...a6 9.0-0 Re8 10.Re1 c5 11.Nh4 d4 12.Nb1 Nb6 13.a5 Nbd5+=; 8...Re8 9.0-0 c5 10.bc6 bc6 11.Ba3 c5 12.Nb5 Bb8 13.Bb2 a6+=; 8...c5 9.bc6 bc6 10.0-0 Qc7 11.Ba3 d4 12.ed4 ed4 13.Bd6 Qd6+=) 9.0-0 Nb6 10.d3 Re8 11.Re1 Qe7 12.Ng5 e4 13.de4 de4–/+; B) 8.Rb1 a6 (8...e4 9.Nd4 Bb4 10.Be2 Nb6 11.Ra1 Bc5 12.Ba3 Ba3 13.Ra3 Nc4=; 8...Re8 9.Be2 a6 10.ba6 ba6 11.0-0 Rb8 12.Ng5 c5 13.Bh5 Re7–/+; 8...Rb8 9.Be2 c5 10.bc6 bc6 11.0-0 Qc7 12.h3 Re8 13.Re1 a6+=) 9.ba6 ba6 10.Be2 Rb8 11.0-0 c5 12.d3 Rb4 13.Ba3 Rb1–/+.

7.Nc3 Ne5 A) 8.Rb1 Ng6 (8...Neg4 9.Be2 e5 10.h3 Nh6 11.0-0 e4 12.Nd4 Nf5 13.Nf5 Bf5=; 8...Re8 9.Ne5 Be5 10.Bd3 Bc3 11.Bc3 e5 12.0-0 d4 13.Bb2 Bg4=; 8...c5 9.bc6 Nc6 10.Nb5 Be7 11.Be2 Ne4 12.0-0 Nc5 13.Nc3 Qa5=) 9.Be2 e5 10.0-0 a6 11.Ra1 c5 12.bc6 bc6 13.Rb1 Rb8+=; B) 8.Be2 Nf3 (8...Ng6 9.0-0 e5 10.a5 a6 11.Re1 Bd7 12.ba6 ba6 13.Ba3 e4+=; 8...c5 9.Ne5 Be5 10.0-0 d4 11.Na2 Bd6 12.f4 e5 13.Nc1 Qe7=; 8...Nfd7 9.Ne5 Be5 10.f4 Bf6 11.0-0 a6 12.Rf2 c5 13.bc6 bc6=) 9.Bf3 c6 10.Be2 e5 11.0-0 Qc7 12.Kh1 Bf5 13.d3 a6+=; C) 8.a5 Nf3 (8...a6 9.Ne5 Be5 10.d4 Bd6 11.ba6 ba6 12.Ba3 e5 13.Be2 Rb8+=; 8...c5 9.Ra4 Nf3 10.Qf3 Bc7 11.b6 Be5 12.d4 cd4 13.ed4 Bd6=; 8...c6 9.a6 Nf3 10.Qf3 e5 11.ab7 Bb7 12.Qf5 Re8 13.Bd3 Qc7+=) 9.Qf3 c6 10.a6 e5 11.ab7 Bb7 12.Ba3 Ba3 13.bc6 Bb2+=; D) 8.Ne5 Be5 9.d4 Bd6 10.Bd3 c6 11.Ba3 e5 12.0-0 Re8 13.bc6 bc6=.

7.d4 a6 A) 8.Bd3 c6 (8...ab5 9.ab5 Ra1 10.Ba1 c6 11.bc6 bc6 12.0-0 c5 13.c4 Bb7+=; 8...c5 9.dc5 Nc5 10.0-0 b6 11.Nbd2 Nfd7 12.Be2 Qc7 13.Nb3 Bb7+=; 8...Re8 9.0-0 c5 10.bc6 bc6 11.Nbd2 c5 12.c4 cd4 13.ed4 Rb8=) 9.Ba3 Ba3 10.Na3 Qa5 11.Qd2 Qa4 12.ba6 b5 13.0-0 Ra6+=; B) 8.Ba3 Ba3 (8...Ne4 9.Bd6 cd6 10.ba6 ba6 11.Bd3 Qa5 12.Nfd2 Rb8 13.0-0 Bb7=; 8...Qe7 9.Bd6 Qd6 10.Nbd2 e5 11.de5 Ne5 12.ba6 b6 13.Bb5 Nf3+=; 8...e5 9.Bd6 cd6 10.Be2 Re8 11.0-0 ab5 12.Bb5 Qc7 13.Qe2 Re7=) 9.Ra3 Qe7 10.ba6 b6 11.Bb5 Ba6 12.Rc3 Bb5 13.ab5 Ne4+=; C) 8.Be2 c5 (8...Ne4 9.Nbd2 ab5 10.ab5 Ra1 11.Ba1 Ndf6 12.0-0 Nd2 13.Nd2 Bd7=; 8...ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 Qc7 12.0-0 c5 13.dc5 Nc5+=; 8...Nb6 9.0-0 ab5 10.ab5 Ra1 11.Ba1 Bd7 12.Ne5 Qe7 13.Nd2 Ra8=) 9.dc5 Nc5 10.0-0 Qe7 11.Nc3 Rd8 12.a5 Bd7 13.Re1 ab5+=; D) 8.Nbd2 c5 (8...ab5 9.ab5 Ra1 10.Qa1 Ne4 11.Bd3 Nd2 12.Nd2 Qe7 13.0-0 e5=; 8...c6 9.c4 c5 10.cd5 ed5 11.dc5 Nc5 12.Be2 Qe7 13.0-0 Bg4=; 8...Qe7 9.Bd3 c5 10.bc6 bc6 11.0-0 Rb8 12.Rb1 c5 13.Ne5 Bb7=) 9.bc6 bc6 10.Rb1 Rb8 11.c4 c5 12.Be2 cd4 13.Nd4 Qc7+=.

7.d4 c5 A) 8.Be2 Re8 (8...cd4 9.Qd4 e5 10.Qd2 Qc7 11.Qc3 Qc3 12.Nc3 Nc5 13.Rd1 Be6=; 8...b6 9.dc5 Nc5 10.0-0 a6 11.Nc3 Re8 12.Qd2 Qc7 13.a5 ba5+=; 8...a6 9.dc5 Nc5 10.0-0 Qe7 11.Nc3 Rd8 12.a5 Bd7 13.Re1 ab5+=) 9.dc5 Nc5 10.0-0 e5 11.a5 Qc7 12.c4 e4 13.b6 Qb8–/+; B) 8.c4 Re8 (8...cd4 9.Qd4 e5 10.Qh4 a6 11.Nc3 ab5 12.cd5 ba4 13.Ra4 Ra4+=; 8...Ne4 9.Nbd2 Qa5 10.dc5 Ndc5 11.cd5 ed5 12.Be2 Bg4 13.0-0 Nd2+=; 8...Rb8 9.cd5 Nd5 10.Nc3 Qa5 11.Qd2 Nb4 12.Ne4 Be7 13.Bc3 b6=) 9.dc5 Nc5 10.Be2 e5 11.Nbd2 e4 12.Nd4 Bg4 13.0-0 Nd3–/+; C) 8.Nbd2 c4 (8...cd4 9.ed4 Re8 10.Be2 a6 11.0-0 b6 12.Bd3 Qc7 13.Re1 Bb7=; 8...Qe7 9.c4 Rd8 10.cd5 ed5 11.dc5 Nc5 12.Be2 Bg4 13.0-0 Rac8=; 8...b6 9.dc5 Nc5 10.Be2 a6 11.0-0 Qe7 12.Be5 Bb7 13.Nb3 Rfc8=) 9.Be2 a6 10.ba6 Ra6 11.Ba3 Ba3 12.Ra3 b5 13.Qa1 Qa5–/+; D) 8.dc5 Nc5 (8...Bc5 9.Bd3 Bb4 10.Bc3 Bc3 11.Nc3 e5 12.Be2 Qc7 13.Qd2 Rd8+=) 9.Be2 Qe7 10.0-0 e5 11.Nc3 e4 12.Nd4 Qe5 13.g3 Bh3+=.

7.d4 Ne4 8.Bd3 (8.Ba3 a6 (8...e5 9.Bd6 cd6 10.de5 Ne5 11.Qd4 Qa5 12.Nfd2 Be6 13.Bd3 Nd3=; 8...Ba3 9.Ra3 c5 10.bc6 bc6 11.Bd3 Qa5 12.Nfd2 e5 13.Be4 de4=; 8...Qf6 9.Bd6 cd6 10.Bd3 a6 11.Ra3 e5 12.0-0 ab5 13.ab5 Ra3=) 9.Bd6 cd6 10.ba6 b6 11.c4 dc4 12.Bc4 d5 13.Qc2 Ba6+=; 8.Nbd2 c5 (8...Bb4 9.Bd3 Qe7 10.0-0 Nc3 11.Qc1 c5 12.bc6 bc6 13.Bc3 Bc3=; 8...a6 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 Nd2 12.Nd2 Qe7 13.0-0 e5=; 8...Ndf6 9.Bd3 a6 10.0-0 ab5 11.ab5 Ra1 12.Ba1 Bd7 13.Ne5 Qe7=) 9.Ne4 de4 10.Nd2 cd4 11.Bd4 f5 12.Bc4 Ne5 13.Bb3 a6=; 8.Be2 Qf6 (8...Bb4 9.c3 Be7 10.0-0 a6 11.Nbd2 ab5 12.ab5 Ra1 13.Qa1 Nd6=; 8...Ndf6 9.0-0 a6 10.Ne5 ab5 11.f3 Ng5 12.ab5 Ra1 13.Ba1 h6=; 8...a6 9.0-0 Qf6 10.Nbd2 ab5 11.ab5 Ra1 12.Ba1 Nd2 13.Qd2 Nb6=) 9.0-0 a6 10.Nbd2 ab5 11.ab5 Ra1 12.Ba1 Rd8 13.Bd3 Qg6=) 8...f5 (8...c5 9.bc6 bc6 10.Nbd2 Rb8 11.Rb1 Qa5 12.0-0 Ba6 13.Nb3 Qb6=) 9.0-0 (9.Ba3 a6 10.0-0 ab5 11.ab5 Rf7 12.Qc1 c5 13.c4 b6=) 9...Ndf6 (9...a6 10.Ba3 ab5 11.ab5 Rf7 12.Qc1 c5 13.c4 b6=) 10.c4 (10.Ne5 Nd7 11.Nd7 Qd7 12.c4 c5 13.bc6 Qc6=) 10...c6 (10...c5 11.a5 Bc7 12.Qe1 dc4 13.Bc4 Nd6+=) 11.Ne5 (11.c5 Bc7 12.Nbd2 Bd7 13.Qe2 Qe7+=) 11...cb5 (11...dc4 12.Bc4 cb5 13.ab5 Be5+=) 12.ab5 (12.cb5 Nd7 13.f3 Nef6+=) 12...Bd7 (12...Be5 13.de5 dc4+=) 13.Nd2 (13.f3 dc4+/–) 13...Qe8 (13...Qe7+=) 14.Nd7 Qd7 15.c5 Bc7 16.f3 Ng5 17.Qe2 h6 18.Rfc1 Qf7 19.Nf1 Ngh7 20.Ba3 Rfe8 21.Qf2 g5 22.Bb4 g4 23.f4 Ne4 24.Be4 de4 25.Ra2 Nf6 26.Rca1 Nd5 27.Bd2 (27.Ra7?! Ra7 28.Ra7 Nb4 29.Rb7 Nd3=) 27...Qf8 (better is 27...Bb8!?+/–) 28.Ra7+– Rab8 29.b6 Bd8 30.Be1 Bf6 31.Bd2 Ne7?? (31...Bd8 32.Bc1 Qf7+–) 32.Qe2 Nc6 33.R7a4 Qe7 34.Qc4 Qd7 35.Ng3 Kh7 36.Kh1 Kg6 37.Ne2 Red8 38.Be1 h5 39.Nc3 Ne7 40.Qb5 Nc6 (better is 40...Qb5 41.Nb5 Nd5+–) 41.Qc4 Qf7?? (41...Ne7 42.Qe2 Nd5+–) 42.Nb5+– Ne7 43.Nc7 Nd5 44.Qb3 Rdc8 45.Nb5 Qd7 46.Ra7 (46.Nd6 Rc6+–) 46...Rd8 (better is 46...Ne3!? 47.Qe3 Qb5+/–) 47.Nd6+– Be7 48.Nc4 Bf6 49.Bd2 (49.Bh4! Qe8 50.Ne5 Kg7 51.Bf6 Kf6+–) 49...Ne7 50.Na5 Rdc8 51.Rc1 Nc6 52.Nc6 Qc6 53.Kg1 Rd8 54.Qa4 Rdc8 55.Qc6 Rc6 56.Kf1 Kf7 57.Ke2 Ke7 58.Bb4 Kf7 59.Rd1 Be7 60.Kd2 Kg6 61.Kc3 Rcc8 62.Kc4 Bd8 63.Kb5 Bf6 64.Rc1 Rc6?? (64...Be7+–) 65.Rb7!! Rc5 (65...Rb7 66.Kc6 Remove defender) 66.dc5 Rb7 67.c6 Rb8 (67...Rb6 68.Kb6 Bd8 69.Kb7+–) 68.c7 (68.c7 Rh8 69.b7+–) 1–0. Enkhtuul,A (2120) – Roos,Ez (1815), 39th Olympiad Women, 2010.

7.d4 Qe7 8.c4 c5 (8...dc4 9.Bc4 e5 10.de5 Ne5 11.Ne5 Be5 12.Ba3 c5 13.bc6 Qe8=) 9.cd5 Nd5 10.e4 Nf4 11.e5 Bc7 12.Qd2 Nd5 13.Bd3 Nb4 =.

7.d4 Re8 A) 8.Bd3 c5 (8...e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Re5 12.0-0 Bg4 13.Qc1 c5+=) 9.bc6 bc6 10.0-0 Rb8 11.Ra2 e5 12.de5 Ne5 13.Be5 Be5+=; B) 8.c4 c5 (8...dc4 9.Bc4 Nb6 10.Bd3 a6 11.Ne5 ab5 12.ab5 Ra1 13.Ba1 Nbd5=) 9.dc5 Nc5 10.Be2 e5 11.Nbd2 e4 12.Nd4 Bg4 13.0-0 Nd3–/+; C) 8.Be2 c5 (8...a6 9.Ba3 Ba3 10.Ra3 ab5 11.ab5 Ra3 12.Na3 e5 13.0-0 Qe7=; 8...Qe7 9.c4 Bb4 10.Bc3 Ne4 11.Qc2 Nc3 12.Nc3 dc4 13.0-0 Nb6=; 8...e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Re5 12.Nd2 Bf5 13.Nf3 Re8=) 9.dc5 Nc5 10.c4 e5 11.Nbd2 Bg4 12.0-0 e4 13.Ne1 Be2+=; D) 8.Ba3 Qe7 (8...Ba3 9.Ra3 e5 10.Be2 e4 11.Nfd2 a6 12.0-0 Qe7 13.c4 dc4=; 8...a6 9.Bd6 cd6 10.Be2 e5 11.0-0 ab5 12.Bb5 Qc7 13.Qe2 Re7=; 8...e5 9.Bd6 cd6 10.a5 Qc7 11.Be2 e4 12.Nfd2 Rb8 13.0-0 Nf8=) 9.Bd6 Qd6 10.Be2 e5 11.0-0 e4 12.Ne1 a6 13.Nd2 ab5=.

7.Be2 a6 A) 8.0-0 c5 (8...e5 9.Ba3 Qe7 10.Bd6 Qd6 11.Nc3 Ne4 12.Na2 c5 13.bc6 bc6+=; 8...ab5 9.ab5 Ra1 10.Ba1 e5 11.d3 Qe7 12.Nbd2 Rd8 13.c4 e4+=; 8...Qe7 9.Nd4 ab5 10.Nb5 b6 11.Nd6 Qd6 12.f4 Ba6 13.d3 Bb7=) 9.d4 cd4 10.Qd4 e5 11.Qc3 Re8 12.Rd1 Nc5 13.a5 ab5+=; B) 8.Nc3 e5 (8...Re8 9.0-0 e5 10.Ba3 Ba3 11.Ra3 ab5 12.Nb5 b6 13.d4 Ne4+=; 8...ab5 9.Nb5 Bc5 10.0-0 c6 11.Nbd4 Bb4 12.c3 Bd6 13.Ba3 Ba3+=; 8...c5 9.0-0 e5 10.d3 Qc7 11.Nd2 b6 12.ba6 Ba6 13.Nb5 Bb5+=) 9.0-0 Re8 10.Qe1 c5 11.Nh4 Nf8 12.ba6 ba6 13.Rb1 Bd7–/+; C) 8.ba6 ba6 (8...b6 9.a5 Ba6 10.ab6 Be2 11.bc7 Qc7 12.Ke2 Ra1 13.Ba1 e5+=) 9.Nc3 Rb8 10.Rb1 e5 11.0-0 c5 12.d3 Qc7 13.e4 d4–/+; D) 8.Ba3 Qe7 (8...Ba3 9.Ra3 ab5 10.ab5 Ra3 11.Na3 Qe7 12.Nb1 c5 13.d4 c4=; 8...Nb6 9.Bd6 Qd6 10.ba6 ba6 11.d4 Rb8 12.0-0 c5 13.Nbd2 Nbd7=; 8...Nc5 9.d4 Nce4 10.0-0 ab5 11.ab5 Bd7 12.Ne5 Qe8 13.Bd6 Ra1=) 9.Bd6 Qd6 10.Nc3 e5 11.0-0 Ne4 12.Na2 c5 13.bc6 bc6+=.

7.Be2 c5 A) 8.bc6 bc6 9.Nc3 Rb8 10.Rb1 e5 11.0-0 Qc7 12.h3 Re8 13.Re1 a6+=; B) 8.d3 Qc7 (8...a6 9.0-0 e5 10.c4 dc4 11.dc4 Qc7 12.h3 e4 13.Nfd2 ab5+=; 8...e5 9.0-0 Qc7 10.h3 a6 11.Nc3 d4 12.Ne4 Ne4 13.de4 de3+=; 8...Qe7 9.0-0 e5 10.a5 Rd8 11.Nbd2 e4 12.Ng5 h6 13.Nh3 Ne5+=) 9.a5 e5 10.Nbd2 Rd8 11.0-0 e4 12.de4 de4 13.Ng5 Bh2–/+; C) 8.0-0 e5 (8...Qc7 9.a5 e5 10.h3 Re8 11.d3 Rd8 12.Nc3 Nf8 13.b6 Qd7=; 8...a6 9.d4 b6 10.c4 cd4 11.Qd4 e5 12.Qh4 e4 13.Nfd2 Be7=; 8...Qa5 9.c4 Rd8 10.cd5 Nd5 11.Nc3 N5f6 12.Qc2 e5 13.Rfd1 Nb6=) 9.Nh4 Bc7 10.d4 ed4 11.ed4 c4 12.Re1 Ne4 13.Nf3 Re8+=.

7.Be2 e5 A) 8.Nc3 a5 (8...Re8 9.0-0 c5 10.bc6 bc6 11.Ba3 c5 12.Nb5 Bb8 13.Bb2 a6+=; 8...a6 9.0-0 Re8 10.Re1 c5 11.d3 Qc7 12.Nd2 b6 13.ba6 Ba6+=; 8...c5 9.bc6 bc6 10.0-0 Rb8 11.Rb1 Re8 12.Qe1 Qc7 13.h3 a6+=) 9.0-0 Nb6 10.Rb1 Re8 11.d3 Rb8 12.Re1 Qe7 13.Ng5 e4–/+; B) 8.0-0 Qe7 (8...a6 9.Ba3 Qe7 10.Bd6 Qd6 11.Nc3 Ne4 12.Na2 c5 13.bc6 bc6+=; 8...Re8 9.Nc3 c5 10.bc6 bc6 11.Ba3 c5 12.Nb5 Bb8 13.Rb1 d4+=; 8...c5 9.bc6 bc6 10.Nc3 Qc7 11.Ba3 d4 12.Bd6 Qd6 13.ed4 ed4+=) 9.Nc3 c5 10.bc6 bc6 11.Rb1 Rb8 12.Ng5 Re8 13.Re1 h6+=; C) 8.d3 Qe7 (8...a6 9.0-0 ab5 10.ab5 Ra1 11.Ba1 Qe7 12.Nbd2 Rd8 13.c4 e4+=; 8...c6 9.0-0 Qc7 10.h3 a6 11.c4 dc4 12.dc4 b6 13.Nc3 Rd8+=; 8...Re8 9.0-0 a6 10.c4 dc4 11.dc4 Qe7 12.Qc2 ab5 13.ab5 Ra1=) 9.0-0 Rd8 10.Nbd2 e4 11.Nd4 Qe5 12.g3 Qg5 13.de4 de4+=; D) 8.Ba3 Qe7 (8...Ba3 9.Na3 a6 10.0-0 ab5 11.ab5 Qe7 12.Qc1 c5 13.bc6 bc6+=; 8...e4 9.Nd4 Ne5 10.0-0 a6 11.Bd6 Qd6 12.Nc3 ab5 13.ab5 Ra1+=; 8...Nb6 9.Bd6 Qd6 10.a5 Nbd7 11.0-0 a6 12.Na3 ab5 13.Nb5 Qc6=) 9.0-0 a6 10.Bd6 Qd6 11.Nc3 Ne4 12.Na2 c5 13.bc6 bc6+=.

7.Be2 Re8 A) 8.Nc3 e5 (8...c5 9.bc6 bc6 10.Ba3 c5 11.0-0 a6 12.d4 Rb8 13.dc5 Nc5+=; 8...a6 9.0-0 e5 10.Ba3 Ba3 11.Ra3 ab5 12.Nb5 b6 13.d4 Ne4+=; 8...a5 9.0-0 e5 10.Ba3 Bb4 11.Bb2 Nb6 12.Nb1 Bd6 13.d4 e4+=) 9.0-0 c5 10.bc6 bc6 11.Ba3 c5 12.Nb5 Bb8 13.Bb2 a6+=; B) 8.0-0 e5 (8...c5 9.c4 e5 10.d3 dc4 11.dc4 Qc7 12.h3 e4 13.Nfd2 Bh2=; 8...a6 9.d4 ab5 10.ab5 Ra1 11.Ba1 Ne4 12.Nbd2 Qf6 13.Ne4 de4=; 8...Qe7 9.d4 e5 10.de5 Ne5 11.Nbd2 Nf3 12.Nf3 Be6 13.a5 a6=) 9.Ba3 e4 10.Nd4 Nc5 11.Nc3 Ne6 12.Bd6 Qd6 13.Ne6 Be6=; C) 8.d4 c5 (8...Qe7 9.c4 c5 10.0-0 cd4 11.Qd4 Nc5 12.Qh4 dc4 13.Bc4 e5=; 8...a6 9.0-0 ab5 10.ab5 Ra1 11.Ba1 Ne4 12.Nbd2 Qf6 13.Bd3 Qf5=; 8...e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Re5 12.Nd2 Bf5 13.Nf3 Re8=) 9.dc5 Nc5 10.c4 e5 11.Nbd2 e4 12.Nd4 Bg4 13.0-0 Nd3–/+; D) 8.Ba3 Qe7 (8...Ne5 9.Ne5 Be5 10.d4 Bd6 11.c4 dc4 12.Bc4 e5 13.0-0 Be6=; 8...Ba3 9.Ra3 e5 10.d4 e4 11.Nfd2 a6 12.0-0 Qe7 13.c4 dc4=; 8...a6 9.Bd6 cd6 10.0-0 e5 11.Nc3 Qa5 12.Qe1 b6 13.Rb1 Re6=) 9.0-0 e5 10.Bd6 Qd6 11.d4 a6 12.Nbd2 ab5 13.ab5 Ra1=.

6.a4 Be7 (6...Bd6 7.Be2=) 7.Be2 0-0 8.0-0 Nh7 (8...a6 9.ba6 ba6 10.Ne5=) 9.c4 c6 (9...Nhf6 10.d4+=) 10.d4 dc4 (10...cb5 11.ab5 dc4 12.Nbd2+=) 11.Nbd2 (11.bc6 bc6 12.Nbd2 Nhf6+=) 11...cb5 12.ab5 b6 (12...c3 13.Bc3 Nhf6 14.Qc2+=) 13.Bc4+/– Bb7 14.Qb3 (14.Qe2 Nhf6+/–) 14...Ng5 (14...Nhf6 15.Rfc1+/–) 15.Ng5+/– Bg5 16.Rfc1 (better is 16.Ra4+/–) 16...Nf6? (better is 16...Be7+/–) 17.f4+– Nd5 18.fg5 Qg5 19.Nf3 Qg6? (better is 19...Qe3 20.Qe3 Ne3+–) 20.Bd3 f5 21.Kf2 Qf6 22.Ba3 Rfd8 23.Bc4 Kh7 24.Qd3 Ne7 25.Be7 Qe7 26.Qb3 Bf3 27.Kf3 e5 28.d5 e4 29.Kf2 Qh4 30.Kg1 Qg5 31.Re1 f4 32.ef4 Qf4 33.Qe3 Qf6 34.Qe4 Kh8 35.Qe5 Qf7 36.Qe6 Qf4 37.Qe4 Qf6 38.Bd3 g6 39.Qg6 Qg6 40.Bg6 Rd5 41.Be4 (41...Rdd8 42.Ba8 Ra8 43.Re7+–) 1–0. Grossmann,P (1890) – Blaschke,M, Willy–Irrgang2001, 2001.

6.c4 dc4 (6...a6 7.ba6 ba6 8.Nc3=) 7.Bc4 Nb6 (7...Bd6 8.0-0=) 8.Be2 Bd6 (8...a6 9.ba6 ba6 10.0-0=) 9.0-0 Qe7 (9...0-0 10.Qc2=) 10.d4 Bd7 11.a4 c5 (11...0-0 12.Qc2 Nbd5 13.Nbd2=) 12.dc5 (12.dc5 Bc5 13.Nbd2+=). DEFFM – GuestYSDX, freechess.org, 2018.

6.Be2 b6 (6...Bd6 7.0-0=) 7.0-0 Bb7 8.d4 Bd6 9.Nbd2 0-0 10.c4 Re8 11.a4 Ne4 (11...c5 12.a5=) 12.Ne4 de4 13.Nd2 f5 (13...c5 14.bc6 Bc6 15.Ba3=) 14.f3 Qg5 15.f4 Qh4 16.g3 Qe7 17.Qb3 Nf6 (17...a6 18.Rfd1=) 18.Rf2 (18.a5 Red8+=) 18...h5 (18...a6 19.Rff1=) 19.Rc1 (better 19.a5+–) 19...g6?? (19...Red8 20.Qc2 Rac8 21.c5 bc5 22.dc5 Bc5 23.Qc5 Qc5 24.Rc5 Rd2 25.Bf6 gf6 26.Bc4+–) 20.d5?? (better 20.c5+–) 20...e5 (20...ed5 21.cd5 Qf7 22.Qc3+=) 21.fe5 (21.c5 Bc5 22.d6 Qf7 23.Qf7 Kf7 A) worse 24.dc7 ef4 25.Nc4 fe3–+ (worse 25...Be3 26.Ne3 fe3 27.Rff1–/+); B) 24.fe5=) 21...Be5+= 22.Ba3 Bd6 23.Bb2 Ng4 (23...Be5 24.Be5 Qe5 25.Rb1+=) 24.Rg2 (24.Bg4 hg4 25.a5 a6+= (25...ba5? 26.c5+–)) 24...Bc5= 25.Qc3 (better 25.Bg4 hg4 26.Qc3=) 25...Ne3?? (better 25...Be3 26.Kf1 Qf6 27.Bg4 Qc3 28.Rc3 Bd2 29.Rd2 hg4=+) 26.Qh8 Kf7 27.Qg7 1–0. GuestZDVD – GuestVCTG, freechess.org, 2017.

6.a4 ab5=+ 7.ab5 Ra1 8.Ba1 c5 (8...Be7 9.Nf3=+) 9.c4 (9.Nc3 Bd6=+) 9...Bd6 10.Nf3 0-0 11.Be2 b6 12.0-0 Bb7 13.Bb2 (13.Be5 Be7=) 13...Qe7 14.Ne5 (14.Na3 Ra8=) 14...Ra8 (14...dc4 15.Nc4 Ne4 16.Bf3=) 15.Bf3 Bc7 (15...Ra2 16.Qb3 Ra5 17.Nc6 Bc6 18.bc6 dc4 19.Qc3+=) 16.Nc6 (16.Nd7 Qd7 17.Bf6 gf6+=) 16...Qe8 (16...Qd6 17.Ne5=) 17.cd5 (17.d3 dc4 18.dc4 Ra2+=) 17...Nd5 18.Bd5 (18.Nc3 N7f6=) 18...ed5 19.Qg4 d4 20.ed4 Nf6 (20...Ra2 21.Bc3 Nf6 22.Qf3+=) 21.Qf3 (21.Qh4 Bc6 22.bc6 Ra2=+) 21...Ra2 22.Bc3 Qe4 23.Qe4 Ne4+= 24.Re1 f5 25.d3 Nd6+= 26.d5 Kf8 27.Be5?? Nb5=+ 28.Nc3? Nc3–+ 29.Bc7 Re2?? 30.Re2+= Ne2 31.Kf2 Nc3 32.Bb6+/– Nd5 33.Bc5 Ke8 34.Nd4 Nf4–/+ 35.Bd6 Nd3 36.Ke3 Nb2 37.Nf5 g6–+ 38.Ng7 Kf7 39.Be5?? Nc4–+ 40.Kd4 Ne5 41.Ke5 Kg7 42.g3 h5 43.Kf4 Kf6 0–1. Vokac,Marek (2475) – Pribyl,Josef (2390), CZE–chT, 1995.

6.a4 Bd6=+ 7.Nf3 0-0 8.Be2 c5 (8...ab5 9.ab5 Ra1 10.Ba1=) 9.bc6 bc6 10.c4 (10.0-0 Qc7=+) 10...Rb8 11.Qc2 a5 (11...Qb6 12.Be5 c5 13.0-0=+) 12.Nc3 (12.0-0 dc4 13.Na3 Nb6=) 12...Ba6=+ 13.cd5 Be2 14.Ne2 cd5 15.Rc1 Qb6 16.Bd4 Qa6 17.Qd1 Rfc8 18.0-0 Rc1 19.Qc1?? (better is 19.Nc1 Rb1 20.Qc2=) 19...Qe2–+ 20.Qc6 Bb4 21.Qc7 Qc4 (22.Rc1 Qc7 23.Rc7 Bd6–+; 21...Rf8 22.Qc2–+) 0–1. Gross,Wilhelm – Merten,Rainer, xx/02, 1990.

6.ba6 b6 =+.

6.c4 dc4 7.Bc4 ab5 8.Bb5 c6 (8...Be7 9.Nf3=+) 9.Ba4 (9.Be2 Be7–/+) 9...Qa5 (9...Ne4 10.Nf3 Ndc5 11.Bc2 Nd3 12.Bd3 Qd3 13.Ne5=+) 10.Bb3 Nc5 (10...Be7 11.Nf3=+) 11.Qc2 (11.Bc2 Be7=+) 11...Be7 (11...Ng4 12.Nc3=+) 12.Nf3=+ Nb3 (better is 12...Qd8!?=+) 13.ab3+/– Qa1 14.Ba1 Ra1 15.0-0 h6 (15...0-0 16.Nc3 Ra3 17.d4+/–) 16.Qb2 Ra6 17.Qe5 0-0 18.h3 Nd5 (18...Rd8 19.Qc7 Nd5 20.Qe5=) 19.Qe4 Nf6 20.Qc2 Rd8 21.Ne5 Bd7 22.g4 Bd6 23.Nc4 Bc7 24.Nc3 b5 25.Nb2 Bb6 26.Nd3 Be8 27.Ne5 Ra7 28.g5+/– hg5 29.fg5 Nd5 30.Qe4 Ne7 31.d4+/– Rc7 32.Qh4 Nf5 33.Rf5+= ef5 34.g6 f6 35.Qh7 Kf8 36.Qh8 Ke7 37.Qg7 Kd6 38.Qf6 1–0. Rohrbacher,Walter – Lambacher,Emil, Baden–ch Sen, 1990.

6.Nf3 Bd6 7.a4 0-0 8.Be2 c5 9.0-0 Qc7 10.c4 (10.Qe1 b6=) 10...Re8 (10...b6 11.Na3=) 11.Na3 (11.Qb3 ab5 12.ab5 Ra1 13.Ba1 dc4 14.Bc4 b6=) 11...d4 (11...e5 12.ba6 ef4 13.Nb5=) 12.a5 (12.ed4 Bf4 13.dc5 e5=) 12...e5 (12...Qa5 13.ba6 ba6 14.Nb5=) 13.b6= Qd8 (13...Qb8 14.fe5 Ne5 15.ed4 Nf3 16.Rf3 Bh2 17.Kh1–+) 14.Nh4 (14.fe5 Ne5 15.ed4 cd4=) 14...e4 (14...ef4 15.ed4 cd4 16.Nc2+=) 15.ed4+= cd4 16.Bd4 Nc5 17.Kh1 (17.Be3 Nd3=) 17...Bd7 (17...Nd3 18.Bd3 ed3 19.Nf3=) 18.d3 (18.Qc2 Rc8=) 18...ed3 19.Bd3 Nd3 20.Qd3 Ne4 21.Nf3 Bf4 22.Nc2 (22.Rad1 Bf5 23.Qb3 Qe7=) 22...Bf5+= 23.Qa3 Rc8 24.Ne3 (24.Bg7 Rc4 (worse is 24...Kg7 25.Nfd4 Qg5 26.Qf3=) 25.Ncd4 Bg4–/+ (worse is 25...Kg7 26.Nf5 Kg8 27.Rae1+=)) 24...Be3–/+ 25.Be3 Rc4 26.Rad1 Qc8 27.Rc1 Nc3 (27...Rc3 28.Rc3 Qc3 29.Qc3 Nc3 30.Bd4–/+) 28.Bd2 (28.Nd2 Rc6 29.Rf5 Re3–/+) 28...Nb5 29.Rc4 Qc4 30.Qc1 Qc1 ½–½. Bonetti,Shane – Muller,Henri, TT–14 ETC, 2004.

6.Nf3 Be7 =.

6.Nf3 a6 7.a4 =.

6.Nf3 a6 7.Be2 =.

6.Nf3 Bb7 7.Be2 a6 8.a4 =.

6.Nf3 Bb7 7.Be2 c5 8.c4 (8.bc6 Bc6 9.Nc3 Bc5=) 8...Qc7 (8...Be7 9.0-0=) 9.0-0 (9.cd5 Nd5 10.0-0 a6=) 9...Bd6 10.Qc2 (10.Qe1 0-0=) 10...dc4 (10...d4 11.Na3=) 11.Bc4 (11.Na3 a6=) 11...0-0 12.Nc3 e5 13.g3 Bf3 (13...Rae8 14.Rad1 ef4 15.gf4 Bf4 16.ef4 Qf4–+) 14.Rf3+= Qb7 (14...Rad8 15.d3+=) 15.Raf1 e4 (15...Rad8 16.e4+=) 16.R3f2 Rae8 (16...Rad8 17.Rd1+/–) 17.Rg2 (17.Rd1 Rd8+/–) 17...h5 (17...h6!?+/–) 18.h3 g6 (18...a5 19.ba6 Qa8 20.d3 ed3 21.Qd3+–) 19.g4 (19.d3 Bc7+–) 19...h4 (19...hg4 20.hg4 a5+–) 20.g5 Nh5 21.Bd5 Qc7 22.Ne4 Re4 (22...Kh7+–) 23.Qe4 Kh7 24.Rg4 f5 (24...Qc8 25.Rh4 f5+–) 25.gf6 Ndf6 26.Qg6 (26.Qg6 Kh8 27.Qh5 Qh7 28.Bf6 Rf6 29.Rg8#) 1–0. Kjaerstad,Eivind J – Nilsen,A, telefon Oslo–Bodoe NOR, 1967.

6.Nf3 Bb7 7.Be2 Bd6 8.0-0 0-0 9.d4 (9.a4 c5=) 9...Ng4 (9...a6 10.Ba3+=) 10.Qc1 (10.Qd3=) 10...Qf6 (10...a6 11.Ba3=) 11.h3 (11.Ne5!? Be5 12.fe5+= (worse is 12.Bg4 Bd6+=)) 11...Nh6= 12.Ne5 Be5 (12...Rfd8 13.c4 dc4 14.Nc6 Bc6 15.bc6=) 13.fe5 Qg5 14.Rf4 (14.Ba3 Rfc8=) 14...f5 (14...f6!? 15.ef6 Rf6=) 15.Nd2 (15.Qf1 Rfc8+=) 15...c6 (15...a6 16.a4+=) 16.bc6 Bc6 17.a4 (17.Ba3 Rfd8+=) 17...Qd8 (better is 17...Rfc8+=) 18.Nf3?? (better is 18.Qe1+=) 18...g5–+ 19.Ng5 Qg5 20.Bb5 (20.a5 ba5 21.e4 Kh8–+ (21...de4? 22.Rg4 Qg4 23.hg4 Ng4 24.c4+–)) 20...Bb5 21.ab5 Kh8 (21...Rf7 22.Qd2 Rg7 23.Qe2–+) 22.c4 (22.Qf1 Rfc8 23.Qe2 Rc7–+) 22...Rg8 (22...Rfc8 23.Ra4–+) 23.Qf1? (better is 23.Rf2!?–/+) 23...dc4–+ 24.Bc3 (24.Ra4 Rac8–+) 24...Nf8 25.Ra2 (25.Be1 Ng6 26.Rf3 Qh5–+) 25...Ng6 26.Rff2 (26.Rf3 Nh4 27.Rf4 Qg3–+) 26...Nh4 27.Bd2 c3 28.Bc1 Qg7 29.Qc4 Qg3 30.Qc3?? Qh3 31.Qe1 Nf3 32.Rf3 Qf3 33.Rf2 Qh5 34.Rf3 Qf3 (34...Qf3 35.g3 Rg3 36.Qg3 Qg3 37.Kf1 Qh2 38.e4 Rg8 39.Be3 Rg2 40.Bf2 Rf2 41.Ke1 Qg1#) 0–1. Degen,Magda – Prien,Heidi, DDR–ch (Women), 1967.

6.Nf3 0-0 7.Bd3 Bb4 8.Nc3 c5 9.bc6 bc6 10.Ne2 Rb8 11.Rb1 c5 12.Bf6 Qf6 13.c3 Ba5 14.Rb8 Nb8 15.Qb1 Ba6 16.Ba6 Na6 17.Qb5 Rb8 18.Qa5 Rb1 19.Kf2 Rh1 20.Qa6 Qe7 21.Qc8 Qf8 22.Qf8 Kf8 23.Neg1 1–0. Kilpatrick – McMorran, corr SCCA 1985–87.

6.Nf3 0-0 7.Bd3 Ne4 8.0-0 c5 (8...Ndc5 9.Nc3=) 9.Nc3 (9.Be4 de4 10.Ng5 Be7+=) 9...f5 (9...Nc3 10.Bc3 f6=) 10.Be4 (better 10.Be2!?=) 10...fe4-/+ 11.Ng5 Nf6 12.Ne2 (12.d3 h6 13.Nh3 ed3 14.cd3 Qc7-/+) 12...h6-/+ 13.Nh3 Qe7 (13...Bd7 14.a4-/+) 14.Ng3 e5 (14...Bd7 15.Rb1-/+) 15.fe5 Be5 16.Be5 Qe5 17.Nf4 Bg4 18.Qb1 Qg5 (18...Kh7 19.h3 Bd7 20.Qb3=+) 19.Qb3 (19.c4 dc4 20.Ne4 Qe5 21.Nf6 Rf6+= (worse 21...Qf6 22.Qc2+/-)) 19...Rad8 (19...Rf7!?=+) 20.Qa3= d4 21.Qa7 de3 (21...Rf7 22.a4+=) 22.de3 Rd2 (better 22...c4!?+=) 23.Qb7+- Rc2 (better 23...Re8 24.Qa7 c4+/-) 24.Ne4 Ne4 25.Qe4 Bf5 26.Qd5 Kh7 27.Rac1 Rc1 (27...Rd8 28.Qe5 Ra2 29.Rc5 Bd3+-) 28.Rc1 Re8 (28...Qf6 29.a4+- (29.Rc5?! g5 30.Nd3 Be6+-)) 29.Qc5 (29.Rc5!? Rf8+-) 29...Qf6 30.b6 (better 30.Rd1 Bg4 31.Rf1 Re5 32.Qc2 Qf5 33.Qf5 Bf5+-) 30...Be4?? (better 30...Rc8 31.Qa3 Rc1 32.Qc1 Qb6+/-) 31.Qd4 Re5 (31...Qd4 32.ed4 Rb8+-) 32.Rc7 Qg5 33.b7 Rb5 (33...Bb7 34.Rb7 Re8+-) 34.Qe4 (34.Qe4 Qf5 35.Qf5 Rf5 36.b8Q h5 37.Qb1 h4 38.Qf5 Kg8 39.Rc8) 1-0. ttmzt (2110) - Appie (2135), Rated Blitz game, lichess.org, 2015.

6.Nf3 a6 7.a4 0-0 8.Be2 Qe8 9.0-0 e5 10.fe5 Ne5 (Worse is10...Be5 11.Ne5 Ne5 12.Ba3–/+) 11.Na3 Qe7 12.Ne5 Be5 13.Be5 Qe5 14.c3 Bd7 15.ba6 ba6 16.Bf3 (16.Nc2 c5=+) 16...Rab8=+ 17.Qe2 Qd6 18.Nc2 Bf5 19.Qd1 c5 20.Be2 Bg6 21.Qc1 Rb3 22.Na3 Rfb8 23.Bd1 R3b7 24.Rf4 c4 25.Bc2 Nd7 26.Rd4 Nc5 27.Nc4 Qc7 (27...dc4 28.Rd6) 28.Rd5 Bc2 29.Qc2 Nb3 30.Rb1 Qc4 31.Qd3 Qd3 32.Rd3 Kf8 (33.Rd5 Ke7–/+) 0–1. Kuni,Richard – Woelfelschneider,Peter, TT–02.06, 2001.

6.Nf3 a6 7.a4 Ndf6 8.Ne5 Bd6 9.Be2 Be5 10.Be5 Nd7=+ 11.Bb2?? Qh4–+ 12.g3 Ng3! (13.hg3 Qh1 14.Bf1 Nf6–+) 0–1. algernon (1700) – dbryant (1835), net–chess.com, 2001.

6.Nf3 Be7 7.Bg7 Rg8 8.Bb2 (better is 8.Be5!?=) 8...Bh4–/+ 9.g3 Rg3 10.hg3 Bg3 11.Ke2 Nf2 12.Rh7 Nf8 13.Rh8 f6 (13...Nd1 14.Ba3 Qe7 15.Kd1+–) 14.Ba3 (14.Qc1 d4 15.d3 c5 16.bc6 bc6+–) 14...Kf7 (14...Nd1 15.Rf8 Kd7 16.Kd1 a6+–) 15.Qc1 (15.Qc1 Bd7 16.Qb2+–) 1–0. Stader,J – Gesierich,W, BdF, 1956.

6.Be2 0-0 7.Nf3 c5 (7...a6 8.ba6 ba6 9.Nc3=) 8.c4 (8.0-0 a6=) 8...b6 (8...dc4 9.0-0+=) 9.0-0 (9.Ne5 Bb7=) 9...Bb7 (9...a6 10.Nc3=) 10.Ne5 (10.Nc3 a6=) 10...Rc8 (10...Ne5 11.fe5 Nd7 12.Qc2=) 11.d3 (11.Bf3 Qc7=) 11...Ne8 (11...Ne5 12.Be5 Nd7 13.Bc3=) 12.Nd2 (12.Bf3 Bf6=) 12...f6 (12...Ne5 13.fe5 Bg5 14.Kf2+=) 13.Nef3 (13.Ng4 Ra8=) 13...Nd6 14.g4 (14.Ne1 Ra8=) 14...Qc7 (14...Ra8 15.a4+=) 15.Qe1 (15.Qc2 Rce8=) 15...Nf7 (15...Ra8 16.Qh4+=) 16.Nb3 (16.Qg3 Ra8=) 16...dc4 (16...e5 17.f5+=) 17.dc4 Bd6 (17...e5+=) 18.h4 (better is 18.Bd3!?=) 18...e5–/+ 19.f5 (better is 19.fe5 Nfe5 20.Ne5 Ne5 21.Qf2–/+) 19...e4–+ 20.Nfd2 Bg3 21.Qb1 Bh2 22.Kh1 Qg3 Black threatens strongly Bg1 23.Qe1 (23.Re1–+) 23...Qh3 24.Rf2 Be5 25.Kg1 Bb2 26.Rb1 (26.Nf1 Qh4 27.Qd1 Be5 (27...Ba1 28.Rh2 Qg5 29.Rh5 Qh5 30.gh5–+) 6 28.Qd7 Rc7–+ (worse is 28...Ba1 29.Na1 Rb8 30.Nc2–+)) 26...Be5 27.Nf1 Bb8 (27...Bb8 28.Nbd2 Qh4–+; 27...Qh4 28.Rg2 Qh6 29.Qd2–+) 0–1. Testard,Gerard – Gaidot,Guy, corr FRA AJEC58, 1985.

6.Be2 a6 7.ba6 b6 8.Nf3 +=.

6.Nf3 0-0 7.a4 Ne4 8.d3 Nd6 9.Nbd2 Bf6 10.d4 Be7 11.c4 Nf5 12.Qb3 Nf6 13.Ne5 Ne8 14.g4 Nh4 15.c5 f6 16.Nef3 Ng6 17.h4 f5 18.g5 Bd7 19.h5 Nh8 20.Ne5 c6 21.Bg2 Nc7 22.Bf1 Be8 23.Ndf3 Bd7 24.Bc3 a5 25.b6+/– Na6 26.Ba6 Ra6 27.Qb2 Be8 28.Qd2 Qa8 29.Nd3 Bd7 30.Nfe5 Be8 31.Nc1 Nf7+= 32.g6 Ne5 33.gh7 Kh7 34.fe5 Bg5 35.Nd3+/– Qd8 36.0-0-0 Kg8 37.Rdg1 Bh6 38.Nf4 Bf7 39.Qg2 Qe8 40.Be1 Kh7 41.Bh4 Rg8 42.Bg5+– Ra8 43.Rh3 Rc8 44.Rg3 Ra8 45.Bh6 gh6 46.Rg8 Qg8 47.Qg8 Rg8+/– 48.Rg8 Kg8 49.Kd2 Kf8 50.Ke2 Ke7 51.Kf3 Kf8 52.Kg3 Kg7 53.Kh4 Kf8 54.Nd3 Ke7 55.Nc1 Kd7 56.Nb3 Kc8 57.Na5 Kb8 58.Nb3 Kc8 59.a5 Be8 60.Nc1 Kd7 61.Nd3 Bf7 62.Nb4 Be8 63.a6 ba6 64.Na6 Kc8 65.Nb4 Kb7 66.Nd3 Bf7 67.Nf4 Kb8 68.Kg3 Kb7 69.Kf2 Kb8 70.Ng6 Kb7 71.Ke1 Kb8 72.Ne7 Kb7+/– 73.Kd2 Bh5 74.Ng8 Bf7 75.Nh6 Bh5 76.Ng8 Bf7 77.Ne7 Bh5 78.Ke1 Bf7 79.Kf2 Bh5 80.Kg3 (80...Bf7 81.Kf4+–) 1–0. De Cat,Ben – Altieri,Alejandro, NATO–ch Germany, 1989.

6.Nf3 0-0 7.c4 Nb6 8.cd5 Qd5?! 9.Qc2 Ne4 10.Qc7–/+ Bc5 11.Qe5 Qe5 12.Ne5 Nd5 13.Bd3 Nef6 14.Nc3 Rd8 15.Nd5 Nd5 16.Rc1 Bb4 17.Rc4 Ba5 18.Ra4 Bb6 19.Be4 Nf6 20.Bf3 Bd7 21.Nd7 Nd7 22.d4 Rab8 23.0-0 Nf8 24.Rc4 Nd7 25.g3 Nf6 26.e4 Rbc8 27.Rfc1 Rc4 28.Rc4 Rb8 29.Kf2 h6 30.a4 Ne8 31.e5 g5 32.fg5 hg5 33.Bc1 f5 34.Bg5 Kg7 35.g4 Kg6 36.h4 Nc7 37.gf5 Kf5 38.Kg3 Rd8 39.Bd8 1–0. marus – im8u, internet, 2001.

6.Nf3 0-0 7.Be2 a6 8.a4 (8.0-0 ab5 9.Bb5 c6=+) 8...b6 (8...ab5 9.ab5 Ra1 10.Ba1=) 9.Nc3 (9.0-0 Ne4=) 9...Bb7 10.0-0 c6 11.bc6 Bc6 12.Bd3 Bb7 13.Qe2 Nc5 14.Ng5 d4 15.Nd1 Nd3–/+ 16.cd3 Bc5=+ 17.Nf2 Rc8–/+ 18.Nge4 Ne4 19.de4 f5 20.ef5 ef5 21.Nd3=+ Re8 22.Nc5 Rc5 23.Rac1 Qd5 24.a5 Ra5 25.Rf2 d3 26.Qh5–/+ 26...Re7 27.Bd4 b5 28.Rf3 Ra2 29.Rg3? Rc2 30.Rb1 Qe6 31.Bc3 g6 32.Qh6 Rc7 33.Qg5 Qd7 34.Qf6=+ R7c3. Pappert,Thomas – Waibel,Ulrich, compuserve, 1996.

6.c4 dc4 7.Bc4 Bg7 8.Nf3 0-0 9.0-0 Nb6 10.Bb3 Bd7 11.a4 a6 12.Qe2 ab5 13.ab5 Ra1 14.Ba1 c6 15.bc6 Bc6 16.Ne5 Bd5 17.Bd5 Nbd5 18.Nc3 Qa5 19.Qb5 b6 20.Qa5 ba5 21.Bb2 Nc3 22.Bc3 Ra8 23.Ra1 a4 24.Nc4 Nd7 25.Bg7 Kg7 26.Kf2 ½–½. Hasler,Ulrich – Fiechter, OV, 1989.

6.Nf3 Bg7 7.Be2 0-0 8.0-0 (8.a4 c5 9.0-0 a6 10.Ra3 ab5 11.ab5 Ra3 12.Na3 Qa5 13.Qc1=) 8...b6 (8...c5 9.bc6 bc6 10.Na3 Rb8 11.Rb1 Qe7 12.Qc1 c5 13.c4=) 9.a4 (9.Ne5 Bb7 10.Qe1 Ne4 11.Bd4 f6 12.Nc6 Bc6 13.bc6+=) 9...Bb7 (9...a6 10.Bd4 ab5 11.ab5 Ra1 12.Ba1 Qe7 13.Bd4+=) 10.Na3 (10.Nd4 a6 11.Nc3 Ne4 12.Ne4 de4 13.Qe1=) 10...Ne8 (10...c5 11.bc6 Bc6 12.Nb5 a6 13.Nbd4=) 11.Bg7 Ng7 12.c4 (12.Nd4 Rc8 13.c3+=) 12...c5 13.bc6 Bc6 14.cd5 Bd5 15.Ne5 (15.d4 Rc8=) 15...f6 16.Nec4 e5 17.fe5 fe5 18.d3 Rb8 19.Bf3 Ba8 20.Ba8 Ra8 21.Nd6 Rf6 22.Qb3 Kf8? (22...Re6 23.Nab5 Nc5 24.Qd5=) 23.Nf7 (better is 23.Rf6!? Qf6 24.Qd5+–) 23...Qe7+/– 24.Nh6 Rb8?? (better is 24...Qe6 25.Qb4 Qe7+/–) 25.Qg8 1–0. Gorniewicz,Oskar (1895) – Dejna,Miroslaw, Ostroda Poland, 2010.

5.Nc3 b6 6.Ne4+= de4 7.Ne2 (7.Qg4 Bb7+=) 7...Nd7 (7...a6 8.Ng3+=) 8.Ng3+= Nf6 (8...Bb7 9.Be2+=) 9.a4 (9.Bf6 Qf6 10.Ne4 Qg6+–) 9...Bd6 (9...Be7!?+=) 10.Bf6+– Qf6 11.Ne4 Qe5 (11...Qe7 12.Nd6 cd6 13.a5 ba5 14.Ra5+–) 12.Bd3 (12.Nd6 cd6 13.d4 Qf6+–) 12...0-0 (12...Bb7 13.f4 Qd5 14.a5+–) 13.f4 Qd5 14.Ng5 (better 14.Nc3 Qc5 15.Be4+–) 14...g6?? (better 14...f5 15.Qe2 Be7+–) 15.Be4+– Qc4 16.Ba8 Bf4 (16...e5 17.fe5 Be5 18.d4+–) 17.ef4 Qf4 18.Ne4 f5 19.g3 (better 19.Nc3 a5+–) 19...Qg4 (19...Qe5 20.d4 Qg7 21.Ng5+–) 20.Qg4 fg4 21.Rf1 Rf7 (21...Rf1 22.Kf1 Kf8 23.a5+–) 22.Ra3 (better 22.Nf6 Kg7 23.Ng4 Rf1 24.Kf1 a6+–) 22...Kg7 (22...Rf1 23.Kf1 e5 24.Rc3+–) 23.Rf7 Kf7 24.Rc3 c5 1–0. michaelbuss (2790) – MorphiusDragon, ChessWorld.net, 2011.

5.Nc3 Nc3 6.Bc3 c6 (6...a6 7.Nf3=) 7.Rb1 (7.Nf3 a6 8.bc6 Nc6=) 7...cb5 (7...a6 8.a4=) 8.Bb5 Bd7 9.Bd3 b6 10.Nf3 f6? (better 10...Nc6+=) 11.Ne5!+– Nc6 (11...fe5 12.Qh5 Double attack (12.Qh5 Decoy)) 12.Qh5 g6?? (12...Ke7 13.Ng6! hg6 14.Qh8 g5+–) 13.Ng6! hg6 14.Qg6 Ke7 15.Bf6 Kd6 1–0. michaelbuss (2855) – sykyng, ChessWorld.net, 2009.

5.Nf3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Bb4 (8...Nd7 9.Bb2=) 9.c4 (better 9.Bg7!? Rg8 10.Bd4+-) 9...0-0= 10.Be2 dc4 11.Bc4 c6 (11...Nd6 12.Bd3=) 12.0-0 (12.Qc2 Nf6=) 12...cb5 13.Bb5 Nc6 (13...Qa5 14.Qa4=) 14.Qb3 (14.Qc2 Ng5 15.Bc6 bc6+=) 14...Be7 (14...Qa5 15.Bc6 bc6 16.Qc2=) 15.d4 (15.Rc1 Bd7+=) 15...Bf6 (15...Qd5 16.Nbd2=) 16.Nbd2 Nd2 17.Nd2 Na7 (17...Be7 18.Bc3+=) 18.Be2 Nc6 19.Bf3 Bd7 (better 19...e5!? 20.d5 Nb8+-) 20.Qb7+- Na5 21.Qb4 Nc6 22.Qb1 Qa5 (22...Be7 23.Rc1 Qc7 24.Nc4+-) 23.Ne4 Be7 24.Qc2 Nb4 25.Qb3 Bb5 26.Rb1 Bd3 27.Rc1 Be4 28.Be4 Nd5 29.Rc5?? (better 29.Qc2 Nf6 30.Bd3+-) 29…Qe1 0-1. AhmedSultanov (1715) - Riass (1700), lichess.org, 2019.

5.Nf3 Bb4 6.Bg7+= (6.Bg7 Rg8 7.Bd4+/–) 1–0. marekt – prokyon, sachy.sk, 2008.

5.Nf3 Nf2?? 6.Kf2+– Nd7 7.c4 Bd6 (7...Nf6 8.Qc2+–) 8.Bg7 (8.cd5 Nf6 9.Bf6 Qf6+–) 8...Rg8 9.Bb2 e5 10.cd5 (10.Nc3 e4 11.Nd5 c6 12.bc6 bc6+–) 10...e4 11.Nd4 (better 11.Ne1!? Nb6+–) 11...Qh4 (11...Nc5 12.Kg1 Qh4 13.Qe2+–) 12.Kg1 Nc5 13.d3 (better 13.Qe2!? Nd3 14.g3 Nb2 15.Nc3+–) 13...Nd3+= 14.Qd2 (14.Qe2 Bg4 15.Qc2 Bf3=) 14...Bh3 15.Nc3 (better 15.Na3!?+=) 15...0-0-0= 16.a4? (better 16.Rd1=) 16...Rg6–+ 17.Rb1?? (17.Bd3 Rg2 18.Qg2 Bg2 19.Kg2 Rg8 20.Kf1 ed3 21.Nf3 Qh3 22.Ke1 Qf3 23.Kd2–+) 17...Bg2! 18.Bg2 (18.Bg2 Rdg8 Pinning (18...Rdg8 Decoy)) 18...Rdg8 19.Ne4 (19.Kf1 Rg2 20.Qg2 Rg2 21.Kg2 Qf2 22.Kh3 Qe3 23.Kg2 Qf2 24.Kh3 Nf4 25.Kg4 Qg2 26.Kh4 Be7) 19...Rg2 (19...Qe4 20.Nf3 Qf3 21.Bg7 R6g7 22.Rb2 Rg2 23.Qg2 Qd1) 20.Qg2 Rg2 21.Kg2 Qe4 (21...Qe4 22.Kg1 Qe3 23.Kg2 Qf2 24.Kh3 Nf4 25.Kg4 Qg2 26.Kh4 Be7) 0–1. GuestXFHR – GuestNYHN, freechess.org, 2020.

6.a4 a6 7.c4 (7.Be2 Bd6=) 7...ab5 (7...dc4 8.ba6 Na6 9.Bc4=) 8.ab5 (8.cb5 c5=) 8...Ra1 9.Ba1 dc4 10.Bc4 c6 (10...Nd6 11.Qe2=) 11.Nd4 (11.bc6 Bc6 12.0-0 Nf6=) 11...c5 12.Nf3 Qa5 13.Nc3 Nc3 (better 13...Nd6!? 14.Ne5 Bb5 15.Bb5 Nb5=+) 14.Bc3+– Qa3 (14...Qd8 15.Ne5 Qe7 16.0-0+– (worse 16.Nd7 Nd7 17.Qa1 Nb6 18.Bg7 Rg8 19.Bf8 Kf8+–)) 15.0-0 f6 (15...Qa7!?+–) 16.Qc2 Qa7 17.Ra1 Qb6 18.d4 (18.Qe4!? Qc7 19.Be6 b6+–) 18…Bb5 1–0. GuestLGYN – GuestSTQD, freechess.org, 2018.

6.a4 c5 7.d3 Qa5 8.Nfd2 Qb4 (8...Nf6 9.Be5=) 9.Qc1 (better is 9.Ba3!? Nf2 10.Kf2 Qa4 11.Nb3 Qb5 12.Bc5 Bc5 13.d4+/–) 9...Nd2= 10.Nd2 a6 (10...Qg4 11.Qd1 Qd1 12.Rd1=) 11.c4+= Qa5 (11...ab5? 12.Bc3 (12.ab5?! Ra1 13.Qa1 d4+/–) 12...Qa4 13.Ra4 ba4 14.Qb2+–) 12.Be2 ab5?? (better is 12...dc4 13.dc4 Qc7+=) 13.ab5+– Qa1 14.Ba1 dc4 15.dc4 Ra2 16.Be5 Ra8 17.Qb2 f6 18.Bf6! gf6 19.Qf6 Rg8 20.Bh5 Rg6 21.Bg6 hg6 22.Ne4 Ra2 23.Ng5 Bd6 24.Ne6 Bc8 25.Qd8 Kf7 26.Ng5 Kg7 27.Qc8 Ra1 28.Ke2 Rh1 29.Qb7 Be7 30.Qe7 Kh6 31.f4 Kh5 32.Qh7 Kg4 33.Qh3# 1–0. Woelfelschneider,Peter – Weinreich,M, corr ICCF, 1993.

6.Be2 a6=.

6.a4 Ndf6 7.Be2 Ng4 (7...Bd6 8.0-0=) 8.0-0+= Nef2 9.Rf2 Nf2 10.Kf2 Bd7 11.c4 Qe7 12.cd5 ed5 13.Nc3 0-0-0? (better 13...Be6!?+/-) 14.Nd5+- Qd6 (14...Qe6 15.Qb3 f6+-) 15.Nc7! Kc7 (15...Kc7 16.Be5 Combination; 15...Qc7 16.Rc1 Pinning (16.Rc1 Decoy)) 16.Be5 Bg4 (16...Be6 17.Qc2 Kb8 18.Bc4+-) 17.Bd6 Bd6 18.Rc1 Kb8 19.Nd4 Be2 20.Qe2 Bh2 (20...g6 21.a5 Rc8 22.Rc8 Rc8 23.Qf3+-) 21.g3 h5 22.Kg2 Bg3 23.Kg3 h4 (23...f6 24.Ne6 Rde8 25.Qc4 h4 26.Kh2 Re7 27.Qc5 Rhe8 28.Qd6 Ka8 29.Nd8 a5 30.Rc8 Ka7 31.b6 Ka6 32.Ra8) 24.Kh3 g5 25.Qf3 Rhf8 (25...Rdg8 26.Rg1+-) 26.Qf5 f6 27.Ne6 g4 28.Qg4 f5 29.Qf4 Ka8 30.Nc7 Kb8 31.Na6 Ka8 32.Qb8! Rb8 (32...Rb8 33.Nc7 Mate attack) 33.Nc7 1-0. DEFFM – GuestRMNP, freechess.org, 2021.

6.Be2 =.

5.c4 c5 6.d4+= cd4 7.Bd4 Bg7 (7...Bb4 8.Bc3 Be7 9.Nf3+=) 8.Nd2 (8.cd5 ed5 9.Nf3 a6+=) 8...0-0 9.Ngf3 Nbd7 (9...a6 10.Qa4+=) 10.Be2 (10.cd5 Nd5 11.Bg7 Kg7+=) 10...b6 (10...Qe7 11.0-0=) 11.0-0+= Re8 (11...a6 12.cd5 Nd5 13.Bg7 Kg7 14.Qc2=) 12.Rc1 (12.cd5 e5 13.Bb2 e4+=) 12...Bb7 13.a4 (13.Ne5 Ne5 14.Be5 a6+=) 13...e5= 14.Ba1 (14.Bb2 Rc8=) 14...Rc8 15.cd5 Nd5 (15...Bd5 16.Nc4 e4 17.Nd4=) 16.Nc4 (16.Rc8 Qc8 (< 16...Bc8 17.Nc4 Nc5 18.Nfe5+/–) 17.Bc4 Nc5=) 16...e4 17.Nfd2 Nc5 18.Bg7 Kg7 19.Nb2 Nb4 20.Nbc4 Ncd3 21.Bd3 Nd3 22.Rc2 Rc7 23.Nb2 Qc8 24.Rc7+= Qc7 25.Nbc4 Bd5 26.Qa1= f6 27.Nb2 Qc2 28.Nd3 ed3 29.Rd1 Rd8 30.h3 Bb3 31.Rc1?? Qd2–+ 32.Rc7 Bf7 33.Rc1?? Qb4 (34.Kh1 d2–+; better is 33...Qa2 34.Qc3 Qe2 35.Re1–+) 0–1. valpa – Validus, playchess.de, 2002.

5.Be2 Bg7 6.Nf3 Ng4?? 7.h3 (7.Bg7!? Rg8 8.Bb2 f6+-) 7...Ne5 (better 7...Bb2 8.Nc3 Ba1 9.Qa1 Nf6-+) 8.Be5+- c6 (8...f6 9.Bg3 a6+-) 9.Bg7 Kd7 (9...Rg8 10.Bb2+-) 10.Bh8 Qh8 11.Nc3 d4 (11...cb5 12.Bb5 Kd8 13.Rb1+-) 12.Nd4 c5 (12...e5 13.bc6 Nc6 14.Nc6 bc6 15.Rb1+-) 13.Nf3 (13.Nb3 Kc7+-) 13...b6 (13...Kc7 14.a4+-) 14.a4 (better 14.Ne5! Qe5 15.Bf3 Kc7 16.Ba8 Qf6+-) 14...a5 15.0-0 1-0. AhmedSultanov – coolguymorris, lichess.org, 2019.

5.Qf3 Bg7 6.Nh3 0-0 7.Bd3 (7.Be2 Re8=) 7...c6 (7...Re8 8.Nc3=+) 8.a4 (8.0-0 cb5 9.Bb5 a6=) 8...b6 (8...Re8 9.Nc3=+) 9.Ng5 (9.0-0 a6=) 9...h6 10.Nh3 c5 (10...Re8 11.Be5 Nbd7=+) 11.g4 (better 11.0-0=) 11...Qd6?? (better 11...e5 12.Be5 Bg4-/+) 12.Bf6+- Bf6 13.Qf6 c4 14.Bg6! Nd7 (14...fg6 15.Qg6 Double attack) 15.Bf7! Rf7 16.Qh6 Rf6 (16...Rh7 17.Qg6 Rg7 18.Qe8 Nf8 19.Qh5+-) 17.Qg5 Kf7 18.Nf4 (18.f4 Bb7 19.Qh5 Ke7+-) 18...e5 19.Qh5 Ke7 (19...Kg7 20.g5 Rf8 21.Qh6 Qh6 22.gh6 Kh6 23.Nd5+-) 20.Qh7 (20.g5 ef4 21.gf6 Nf6+-) 20...Kd8 21.Qg8 Rf8 (21...Nf8 22.g5 Rf5 23.Qd5 Qd5 24.Nd5 Rg5+-) 22.Ne6 Ke8 23.Nf8 Nf8 24.Nc3 Be6 (24...Bb7 25.Qg7 Nd7 26.f3+-) 25.Qh8 (25.Qg5 a6+-) 25...d4 (25...Bg4 26.Rg1 Be6 27.Rg5+-) 26.Ne4 Qd5 (26...Qc7+-) 27.Nf6 Ke7 28.Nd5 Bd5 29.Qe5 Be6 30.Qd4 Rd8 31.Qg7 Bf7 32.Qg5 Ke8 33.c3 (33.Qe5 Be6+-) 33...Ne6 34.Qe5 Ke7 35.f4 Kd7 36.Qd5 (better 36.a5!? Nc7 37.ab6 ab6+-) 36...Ke8 37.Qc4 (better 37.Qe4!? Kf8 38.Qb7 Nc5 39.Qa7 Rd6+-) 37...Nc5 38.Qf1 Nd3 39.Ke2 Bc4 40.Qb1 Nf4 41.Kf3 Nd3 42.h4 Kf8 43.h5 Kg7 44.h6 Kh7 45.g5 Rf8 46.Kg3 Rg8 47.Kh4 (better 47.Rh4 Rg5 48.Kh2 Rg6+-) 47...Rg6 48.Rf1 (better 48.a5 a6 49.ab6 Bb5+-) 48...Ne5 49.Rf6 (49.Qe4 a6 50.Qe5 Bg8 51.Rf6 Rf6 52.Qf6 Bd5 53.Qg7) 49...Bd3 50.Rf7! Nf7 51.Qd3 Ne5 52.Qf5 Nc4 (52...Kh8 53.Qe5 Kh7 54.Rf1 Rh6 55.gh6 Kh6 56.Qh8 Kg6 57.Rf6) 53.Kh5 (53.Qf7 Kh8 54.Qg6 Nd2 55.Qg7) 53...Nd6 (53...Ne5 54.Qe5 Rg8 55.Rf1 Rg5 56.Kg5 a6 57.Qg7) 54.Qg6 Kh8 55.Qg7 1-0. Fuirio (1675) – thiferet, Rated Classical game, lichess.org, 2013.

5.Nf3= a6 6.c4 (6.ba6 Na6 7.Ne5 Nc5=) 6...ab5 7.cd5 Qd5?? (better is 7...ed5 8.Bb5 c6=) 8.Bf6+– (8…Rg8 9.Nc3+–) 1–0. Wall,Bill – Tibikefor, Internet, 2002.

6.c4 0-0 7.Nf3 Ne4 8.Bg7+= Kg7 9.Be2 f6 (9...dc4 10.Bc4 Nd6 11.d3+=) 10.0-0 f5 (10...dc4 11.Na3+=) 11.d3+/- Nc5 12.d4 Ne4 13.Nfd2 (13.Qc2 c6+/-) 13...Bd7 14.Ne4 de4 (14...fe4 15.Nc3+/-) 15.Nc3 c6 16.Rc1 cb5 17.cb5 a6 18.d5 (18.Qd2 Qe8+/-) 18...ab5 19.ab5 Ra3 20.Qd4 Qf6 21.Rfd1 (better 21.Qb4!? Ra8 22.d6+/-) 21...Qd4 22.Rd4 Rb3 (22...Rc8!? 23.Rc4 Rc4 24.Bc4 ed5 25.Bd5 Ra5=) 23.Bc4 Be8?? (better 23...e5 24.Bb3 ed4 25.ed4 Rc8+/-) 24.Bb3+- Nd7 (24...ed5 25.Bd5 b6 26.Ra1+-) 25.de6 Ne5 (25...Nc5 26.Ba2 Nd3 27.Rb1+-) 26.h3 (better 26.Na2!? Bb5 27.Rc5 Bc4 28.Bc4 Nc4 29.Rd7 Kf6 30.Rc4 Ra8+-) 26...Nd3 Black plans f4 27.Rd1 (27.Ra1 Nc5 28.Bc4 h6+-) 27...Rf6 (27...Kf6 28.Rd6 Rh8 29.Nd5 Ke5 30.Rb6+-) 28.R4d3 ed3 29.Rd3 Kh6 (29...Rf8 30.Rd6+-) 30.Rd8 f4 (30...Rf8 31.e7 Rh8 32.Bf7 Bf7 33.Rh8+-) 31.e4 (better 31.Re8 Rf5 32.e7 fe3+-) 31...Bb5 (31...Rf8 32.e7 Rh8 33.Bf7 Bf7 34.Rh8+-) 32.Nb5 Re6 33.Be6 b6 34.Rd7 g5 (34...Kg5 35.e5 Kh6 36.Nd6 f3 37.Nf7 Kg7 38.Ng5 Kf8 39.Nh7 Ke8 40.Nf6 Kf8 41.Rf7) 35.Bf5 Kh5 (35...g4 36.h4 f3 37.Rh7) 36.Rh7 1-0. BeepBeepImAJeep (2590) - drakanvaran (1850), lichess.org, 2016.

6.Nf3 0-0 7.c4 c5 8.Qc2 b6 9.Be2 Bb7 10.0-0 dc4 (10...Nbd7 11.cd5 ed5 12.d3=) 11.Qc4 (11.Na3 Nbd7=) 11...a6 12.Nc3 ab5 13.ab5 Ra1 14.Ra1 Nd5 (better 14...Bf3!? 15.Bf3 Qd2=+) 15.Ra7+– Nc3 16.Bc3 (worse 16.dc3 Bd5 17.Qd3 Bf3 18.gf3 Qg5 19.Kf1 Rd8=) 16...Bd5 17.Qa4 (17.Qf4 Bc3 18.dc3 Bf3 19.Bf3 Qd3+–) 17...Bf3 18.Bf3 Bc3 19.dc3 Qd2 (19...Qd3 20.g3+=) 20.Qa1 (20.g3!?+–) 20...Nd7+= 21.Ra8?? (better 21.Qd1!? Qd1 22.Bd1+=) 21...Ne5 (21...Ra8 22.Qa8 Kg7 23.Qa1–+) 22.Rf8 (22.Ra2!? Nf3 23.gf3=+) 22...Kf8–/+ 23.Bc6? (better 23.Kf1–/+) 23...Nd3–+ 24.Qf1 Qc3 0–1. GuestMJRN – ostix, freechess.org, 2017.

6.Bc4 Bg7 7.d4 0-0 8.Nf3 b6 9.Ba3 Re8 10.0-0 Bb7 11.Ne5 Nbd7 (11...c5!?=) 12.Nc6+/– Bc6 13.bc6 Nb8 14.Nc3 a6 15.Qf3 Bf8 (15...h6 16.Rfd1+/–) 16.Bf8 Rf8 17.a4 Qd6? (better is 17...Kg7+/–) 18.Qf6+– Qc6 19.Qf3 Qc4 20.Qa8 Qc3 21.Rfc1 Qb2 22.Qb7 Nd7 23.Qa6 e5 (23...Nf6 24.Qb7 Ng4 25.Qf3+–) 24.Qb5 Nf6 (24...Qb5 25.ab5 ed4 26.Rc7 Nf6+–) 1–0. Trkn – guest1863, ICC, 2004.

6.Bc4 Bg7 7.d4 0-0 8.Nf3 c6 9.a4 Bd7 10.0-0+– cb5 (10...a6!? 11.Nc3 ab5 12.ab5 Ra1 13.Qa1 Nd5+–) 11.ab5+– a6 (11...Bc8 12.Nc3+–) 12.Nc3 a5 13.Qd2 (13.Ba3 Re8+–) 13...b6 (13...Re8 14.e4+–) 14.e4 Qc7 (14...Qc8 15.Qe2 Nh5 16.g3+–) 15.Bd3 Bc8 (15...Qb7+–) 16.e5 Nfd7 (16...Nd5 17.Nd5 ed5 18.Ba3+–) 17.Ba3 Re8 (17...Bb7 18.Bf8 Bf8 19.Ng5+–) 18.Ne4 Bf8 (18...Qd8 19.Nd6 Bf8 20.Ne8 Qe8+–) 19.Bf8 Kf8 (19...Rf8 20.Qh6 f6+–) 20.Rfc1 Qd8 21.Qh6 Kg8 22.Rc8! Qc8 (22...Qc8 23.Nf6) 23.Nf6 Nf6 24.ef6 (24.ef6 Qc1 25.Rc1 Nc6 26.Qg7) 1–0. Adlai – Adekst, corr, 2018.

6.Nf3 Bg7 =.

8.d4 a6 9.Nc3 Ne4 10.Bd3 (10.Be2 Nc3 11.Bc3 dc4 12.bc6 Nc6 13.Bc4 Rb8+=) 10...Nc3= 11.Bc3 dc4 12.Bc4 ab5 13.ab5 Ra1 14.Qa1 (worse 14.Ba1 Qa5 15.Ke2 cb5–/+) 14...cb5 (14...Bd7 15.bc6 Bc6 16.Be2+=) 15.Bb5 Nc6 (15...Bd7 16.Be2+=) 16.0-0+– Ne7 17.Qa4 Nd5 18.Bd2 Qb6 (18...f5!?+–) 19.e4+– Nc7 20.Bd3 Rd8 (better 20...f5!?+–) 21.Rc1 Bd7 22.Ba5 Qb2 (22...Qd6 23.e5 (23.Bc7?! Qc7 24.Rc7 Ba4=) 23...Qd5 24.Qb4+–) 23.Qc2 Qc2 24.Rc2 (24.Bc2?! Rc8 25.Bd3 Na6 26.Rc8 Bc8+=) 24...Rc8 (24...Ra8 25.Rc7 Bc6+–) 25.Rc7 Rc7 26.Bc7 1–0. Pierre – Kebab1, internet, 2020.

8.d4 dc4 9.Bc4+= cb5 10.ab5 Nbd7 (10...Nd5 11.Nc3+=) 11.Nc3 (11.0-0 Nd5+=) 11...Nb6 (11...Re8 12.0-0+=) 12.Qb3 (12.Bd3 Nfd5+=) 12...Qc7 (12...Nc4 13.Qc4 Nd5 14.0-0+=) 13.Be2 (13.Bd3 Rd8+/–) 13...Bd7 (13...Nfd5 14.0-0+/–) 14.0-0+/– Rfc8 15.Rfc1 Qd8 16.Ne5 Nfd5 (16...Nbd5 17.Bf3+/–) 17.Nd7 (17.Bf3 Be8+/–) 17...Qd7 (17...Nc3 18.Rc3 Rc3 19.Qc3 Qd7 20.e4+=) 18.Ne4+/– Rc1 (18...Qd8 19.Rc8 Nc8 20.Ba3+/–) 19.Rc1 f5 (19...Rc8 20.Nc5 Qe7 21.Qa2+/–) 20.Nc5 Qf7 21.Bf3 g5 22.g4 (22.Qd3 g4 23.Bd1 Bf8+/–) 22...Rf8 23.Rc2 h5 (23...Kh8!?+/–) 24.gh5 g4 25.Bg2 Nc8?? (better is 25...Rc8+/–) 26.Ne6!+– Nde7 (26...Qe6 Decoy to e6 27.Bd5 A pinning theme) 27.Rc7 Re8 (27...a5 28.Bb7 a4 29.Qa2+–) 28.Bd5 Kh8 (28...Qf6 29.Bb7 Qf7 30.Bd5+–) 29.Ng7 (29.Ng7 Qd5 30.Qd5 Nd5 31.Ne8 Nc7 32.d5 Kh7 33.Nc7+–) 1–0. Frezza – Baumcart, corr Italy, 1969.

8.d4 Nbd7 9.Nc3 Re8 10.Be2 Qc7 (10...c5 11.dc5 Ne4 12.Rc1 (12.cd5? Nc3 13.Qc2 Qa5–+) 12...Ndc5 A) 13.cd5? Bc3 14.Rc3 Qa5–+ (14...Nc3?! 15.Bc3 Qd5 16.Qd5 ed5 17.a5–/+); B) 13.0-0+=) 11.0-0+= Ne4 (11...dc4 12.Bc4 c5 13.Rc1+=) 12.Ne4 de4 13.Nd2 f5 14.Qb3 Nf6 (14...c5 15.Rfd1+=) 15.Rac1 (15.c5 Nd5+–) 15...h5 (15...c5 16.Rfd1+=) 16.d5 (16.c5 Nd5+–) 16...c5 (16...Qd7 17.bc6 bc6 18.Rfd1+=) 17.Ra1 (17.Rfd1 Qd6+–) 17...Ng4 (17...Rd8!?+=) 18.a5?? (better 18.Bg4 Bb2 19.Qb2 hg4 20.Rfd1+–) 18…Qh2 0–1. GuestBKPP – GuestVSZC, freechess.org, 2019.

8.d4 Nbd7 9.c5 Re8 (9...Ne4 10.Qc2=) 10.Be2 (10.Bd3 Ne4 11.Qc2 e5=) 10...h6 (10...Ne4 11.Qc2=) 11.Nbd2+= Kh7 (11...Ne4 12.Qc2+=) 12.Qc2+/– Qc7 13.0-0 Ng8 (13...Kg8 14.Rfb1+/–) 14.Nh4 (14.e4 e5+/–) 14...e5 (14...Ne7 15.Rfb1+=) 15.Nb3 (15.de5 Ne5 16.Bd4 Qe7+=) 15...e4= 16.g3 (16.f3 ef3 17.Rf3 Ndf6=) 16...Ndf6 17.Ng2 Bh3 (17...Bg4 18.Bg4 Ng4 19.Qe2=) 18.Rfe1 Bg2 (18...Bg4 19.Bf1=) 19.Kg2 h5 (19...Ne7 20.Reb1=) 20.f4 (20.a5 cb5 21.Bb5 Reb8+=) 20...Nh6 (20...ef3 21.Bf3 Re6 22.Re2=) 21.Bc3 (21.Qc3 Nf5=) 21...Nf5 (21...Rh8 22.Ba5 Qe7 23.Rh1=) 22.Bd2 Bf8 (22...Rac8 23.Reb1=) 23.Qd1 (23.a5 cb5 24.Bb5 Reb8=) 23...Kg7 (23...cb5 24.ab5 Qd7+=) 24.g4 (better is 24.Rb1!?+=) 24...hg4 (24...Ng4 25.Bg4 hg4 26.Qg4+=) 25.Bg4 (25.bc6 bc6 26.Bg4 Ng4 27.Qg4 Be7–/+) 25...Ng4 26.Qg4 Be7 27.Re2 Qd7 28.Kh1 Rh8 29.bc6 bc6 30.Be1 Bh4 31.Nd2?? Ng3!!–+ 32.Qg3 Bg3 33.Bg3 Rab8 34.Rg1 Rb2 35.f5 Qf5 36.Rf2 Qf2 37.Bf2 Rd2 38.Bg3 Ra2 39.Rf1 f6 40.Rb1 Rf8 41.Bd6 Rf7 42.Rb8 Ra4 43.Rc8 Ra6 44.Kg2 g5 45.Kg3 Kg6 46.Rg8 Rg7 47.Rc8 Kf5 48.h3 Rh7 49.Rf8 Ra3 50.Be5 Re3 51.Kg2 Rhh3 52.Rf6 Kg4 53.Rf2 a5 54.Bc7 (54.Ra2 a4 55.Kf1 Rhf3 56.Kg1 Re1 57.Kh2 Rh3 58.Kg2 e3 59.Bc7 Rd1 60.Rb2 Rd2 61.Rd2 ed2 62.Bb8 d1Q 63.Bh2 Qe2 64.Kg1 Kf3 65.Be5 Qe1#) ½–½. SC 1947 Immenhausen – SC Hofgeismar, Telefon (year?).

8.d4 Nbd7 9.Be2 dc4 10.Bc4 Nb6 +=.

8.d4 Re8 9.Bd3+= dc4 (9...Nbd7 10.0-0=) 10.Bc4 Ne4 (10...Nd5 11.0-0+=) 11.Nc3 (11.0-0 c5+=) 11...Nc3 (11...cb5 12.ab5 Nd6 13.Bd3+=) 12.Bc3 Qc7 13.Qd3 White plans a5 13...Rd8 (13...Bd7 14.0-0+=) 14.0-0 c5 (14...e5 15.Ng5 Rd7 16.Qe2+=) 15.h3 (15.Rac1 Nd7+/–) 15...cd4 (15...Nd7 16.Rfc1+=) 16.ed4 (16.Bd4 Bd4 17.ed4 Qd6+=) 16...Nd7= 17.a5 b6 Black gets strong initiative 18.Bb4 (18.a6 Ba6 19.ba6 Rac8 20.Be6 Qc3 21.Qc3 Rc3 22.Bd7 Rd7=) 18...Bb7= 19.Nd2 (better is 19.Rfc1!? Qb8 20.Be7=) 19...Nc5! 20.ab6 (20.dc5 Exploits the pin 20...Rd3) 20...ab6 21.Bc5 Ra1 22.Ra1 bc5 23.Nb3 cd4 24.Na5 Ba8 25.Bb3 e5 26.Nc6 Bc6–+ 27.bc6 Qc6 28.Ra7 Rf8 29.Qg3 Qc5 30.Ra4 e4 31.Ra1 d3 32.Rb1 Kh8 33.Qf4 f5 34.Bd1 Qc3 35.Kf1 h6 36.g3 d2 37.Qe3 Qd3 38.Qd3 ed3 39.Rb3 Rd8 (39...Rd8 40.Kg2 Kh7–+; better is 39...Re8 40.Kg2 Re1 41.Rb8 Kh7–+) 0–1. Rosner,Dirk – Mueller, corr, 1985.

8.cd5 ed5 9.Be2 Be6 ½–½. Rancic,Danijela (1870) – Markovic,Nikola M, Nis SER, City Ch, 2012.

8.Be2 a6 9.cd5 ed5 10.bc6 Nc6 11.0-0 =.

8.Be2 cb5 9.ab5+= dc4 10.Bc4 Nbd7 11.d4 Nb6 (11...Qc7 12.Qe2+=) 12.Bb3 (12.Bd3 a5+=) 12...Bd7 13.Ba3 (13.Qe2 Nbd5+=) 13...Re8= 14.Qd3 (14.Qe2 a6 15.ba6 ba6=) 14...Nfd5 (14...Bc8 15.Bc2+=) 15.Bc5+= Nc7 (15...Qf6 16.Nbd2+=) 16.Nc3 (16.Na3+=) 16...Ncd5 (16...Nbd5!? 17.Bd5 Nd5+=) 17.Ne4+/– Bf8 (17...Nc8 18.0-0+/–) 18.0-0 Bc5? (better is 18...f5 19.Ng3 Nb4+/–) 19.dc5+– Nb4 20.Qd4 N6d5 21.Bd5 Nd5 22.Nd6 Rf8 23.Nb7 Qf6? 24.Qf6 Nf6 25.c6 Bc8 26.b6! Nd5 27.Rfb1 Rb8 28.ba7 Ra8 29.Nd6 f6 30.Rb8 (30...Ba6 31.Rb7+–) 1–0. Schirmer,Michael – Hohlbein,F, corr, 1985.

6.a4 0-0 7.Nf3 Nh5 8.Bg7+= Ng7 (8...Kg7 9.Nc3+=) 9.Nc3 dc4 (9...Qd6 10.d4+–) 10.Bc4+– b6 (10...Nd7 11.0-0+–) 11.d4 Bb7 12.0-0 Nd7 13.e4 c6 (13...a5 14.Qe2+–) 14.bc6 Bc6 15.Ba6 Rb8 16.Re1 Bb7 (16...Nh5 17.Rc1+–) 17.Bb7 Rb7 18.Qd2 Rc7 (18...Qb8 19.d5+–) 19.Nb5+– Rc4 (19...Rb7 20.Rac1+–) 20.Qa2 Rb4 21.Na7 Qc7 22.Qa3 (22.Nb5 Qc4+–) 22...Rc4 23.Nb5 Qb7?? (better 23...Qc6+–) 24.Nd6 (24.Nd6 Qc6 25.Nc4 Qc4 26.Rec1+–) 1–0. Pierre – Bulletos, internet, 2020.

6.d4 =.

6.cd5 ed5 7.Nf3 0-0 8.a4 a6 (8...Re8 9.Be2=) 9.d3 (9.Be2 Re8=) 9...ab5=+ 10.ab5 Ra1 11.Ba1 c6 (11...Bd7 12.Nc3=) 12.Nc3 (12.bc6 bc6 13.Be2 Bf5=) 12...Re8 (12...cb5 13.Be2=+) 13.Be2 (13.d4 Ne4=) 13...Bg4 (13...cb5 14.0-0=) 14.0-0 Nbd7 (14...c5 15.Qc2=) 15.bc6 (15.d4 Qe7=) 15...bc6 16.h3 Bf3 17.Bf3 Ne5 1–0. GuestPKNM – GuestKTTL, freechess.org, 2016.

6.cd5 ed5 7.Nf3 0-0 8.Be2 c6 9.0-0 cb5 10.Ba3 (10.Bb5 Nc6=) 10...Re8+= 11.Bb5 Bd7 (11...Nc6 12.d4+=) 12.Bd7 (12.Nc3 Ne4 13.Qb3 Bb5 14.Qb5 Nc6+=) 12...Qd7 (12...Nbd7 13.d4+=) 13.Bb2 Nc6 14.d4 Rac8 15.Nc3 a6 16.Re1 Rc7 17.a3 Qd6 18.h3 Na5 19.Nd2 Nc4 20.Nc4 Rc4 21.Rc1 b5 22.Qd3 Rec8 23.Ne2 Ne4 24.Rc4 (24.f3 Ng3–/+) 24...Rc4 (24...bc4 25.Qc2–/+) 25.Rc1 Rc1 (25...Qc6 26.Rc4 bc4 27.Qc2–/+) 26.Nc1 Qc6 27.Nb3 f5 28.g3 Qc7 29.Kg2 Bf8 30.Nd2 Bd6 31.Ne4 fe4 (worse is 31...de4 32.Qd2=) 32.Qe2 Qc4 (32...Kg7 33.Qd2–/+) 33.Qg4+= Bf8 (33...Kf7!?+=) 34.Qe6= Kh8 ½–½. Melzig,Ernst – Tobi,Kurt, 2rd Berlin Germany, Senior Championship, 2010.

6.Nf3 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 0-0 10.Nc3 c6 11.Be2 Nbd7 12.d4 Nb6 (12...dc4!? 13.Bc4 c5=) 13.c5+– Nbd7 14.0-0 cb5 15.Nb5 b6? (better 15...Ne4+–) 16.c6+– Nb8?? (16...Ba6 17.cd7 Qd7+–) 17.c7 (17.c7 Qc7 18.Nc7+–) 1–0. GuestTHRL – GuestWWHT, freechess.org, 2017.

7.Nc3 a6 8.a4 =.

7.d4 a6 =.

7.d4 c6 8.Ba3 (8.Nc3 cb5 9.cb5 a6=) 8...Re8 9.Nbd2 Bd7 (9...a6 10.bc6 Nc6 11.Rc1=) 10.Qb3 cb5 11.cb5 Qa5 (11...a6 12.Qa4=) 12.Bb4 Qb6 (12...Qc7 13.Qa3=) 13.Bd3 Rc8 (13...a6 14.Bc5 Qa5 15.ba6 Na6 16.Bb6=) 14.0-0 a6 (14...Bb5? 15.Bc5 Bd3 16.Bb6 Bf1 17.Nf1 ab6 18.Qb6+–) 15.ba6 (15.a4 h6+=) 15...ba6 (15...Na6 16.Be7 Qb3 17.ab3+=) 16.Bc5 (16.Rfc1 Rc1 17.Rc1 Nc6+=) 16...Qb3 17.ab3 Nc6 (better is 17...a5!?+=) 18.Ba6+– Rcb8 19.Bd3 Ra1 20.Ra1+– Nb4 21.Be2 Nc6 22.Ra6 Ne4 23.Ne4 de4 24.Nd2 Nb4? 25.Bb4 Rb4 26.Ne4 Rb3 27.Ra8 Bf8 28.Nf6 Kg7 29.Nd7 Rb1 30.Bf1 Bd6 31.f4 h5 32.Ra7 f6 33.Ne5 Kf8 34.Rf7 (34...Ke8 35.Rf6+–) 1–0. mtrold1 – ZaBaku, internet live, 2001.

7.Be2 c6 8.a4 a6 9.Qc2 ab5 10.ab5 (10.cb5 Bd7=) 10...Ra1 11.Ba1 cb5 (11...dc4 12.Qc4 Bd7 13.bc6 Bc6 14.d4=) 12.cb5+= Bd7 13.0-0 Qa5 Attacking the isolated pawn on b5 14.Nc3 (14.Bd4 Rc8 (14...Bb5? 15.Qc5+–) 15.Qb2 Qd8+=) 14...Rc8= 15.Qb3 Ne4 16.Bb2 (16.Rc1 Nd6 17.Bb2 Nc4=) 16...Nc5 (16...Bc3!? 17.Bc3 Nc3 18.dc3 Qc3 19.Qc3 Rc3=+) 17.Qc2= Bb5?? (better 17...Ne4 18.Ra1 Nc3 19.dc3 Qc7=) 18.Bb5 (18.Nb5 Qa2 19.Rb1 Nbd7+–) 18...Bc3 19.Qc3 Qc3 20.Bc3 Ne4 21.Bd4 Nc6 (21...f6 22.Ba4+–) 22.Bc6 (22.Rc1 Ne7 23.Rc8 Nc8+–) 22...bc6 (22...Rc6 23.Rb1+–) 23.d3 (23.Rc1 c5 24.d3 Ra8+–) 23...Nd6 24.Ra1 (24.Rc1!? Nf5+–) 24...c5 25.Be5 Nf5 (25...Ne8 26.Bc3+–) 26.Ra7 h6 (26...c4 27.dc4 dc4 28.g4+–) 27.g4 Ng7 28.Bf6 (better 28.Bg7!? Kg7 29.Ne5 Rf8+–) 28...c4 29.dc4 Rc4 (29...dc4 30.Bc3 Ne8+–) 30.Ne5 Rc1 31.Kg2 Ne8 (31...h5 32.Ra8 Kh7 33.Nf7 g5+–) 32.Ra8 (32.Ra8 Re1 33.Re8 Kh7 34.Rh8) 1–0. GuestPHHT – GuestTHWN, freechess.org, 2017.

8.Ba3 Re8 =.

8.Qb3 a6 9.d4 =.

8.Qb3 Bb7 9.Ba3 Re8 =.

8.Qb3 Bb7 9.Be2 dc4 10.Qc4 a6 11.a4 =.

8.Qb3 Bb7 9.Be2 c6 10.d4 (10.cd5 ed5 11.0-0 c5=) 10...dc4= 11.Qc4 (11.Bc4 a6 12.ba6 Na6+=) 11...cb5 12.Nb5 Nc6 (12...a6 13.Nc7 Ra7=+) 13.Ba3+= Na5 (13...a6 A) < 14.Bf8 ab5 15.Be7 Qe7 (< 15...bc4 16.Bd8 Rd8 17.Bc4–/+; < 15...Ne7 16.Qb5 Ned5 17.Qb3–/+) 16.Qb5 Nb4–+; B) 14.Nd6 Na5 15.Qc2 (< 15.Nb7 Nc4 16.Nd8 Na3–/+) 15...Bf3 16.Bf3+/– (16.gf3?! Nd5=)) 14.Qa4 (14.Qd3 Re8+/–) 14...Re8 (14...a6 15.Nd6 (< 15.Bf8 Bf8 16.0-0 ab5 17.Qb5 Ba3–/+) 15...Bd5 16.Qc2+=) 15.Rc1 Nd5 (15...Rc8 16.0-0 (16.Na7? Rc1 17.Bc1 Bf3 18.Bf3 Qc7–+) 16...Qd7 17.Ne5+–) 16.Nd6+/– Re7 17.0-0 Rc7 18.Rc7 Qc7+/– 19.Ng5 Bc6 20.Qc2+/– Be8 21.Rc1 Qc2+= 22.Rc2 h6 23.Ne8 Re8 24.Ne4 Bf8 25.Bf8 Kf8 26.Bb5 Rd8 27.a3 Ke7 28.Kf1 f5 29.Nc3 Nc7 30.Be2 a6 31.Na4+/– Nb5 32.Bb5 ab5 33.Nc3 Rc8 34.Nd5! Kd8 35.Rc8 Kc8 36.Nc3 Kc7 37.Nb5 Kc6 38.Nc3 b5+= 39.Ke2 Nc4 40.Nb1 Kd6 41.f3 Kc6 42.e4 Kb6 43.Kd3 Ka5 44.g3 Kb6 45.Kc3 Ka5 46.Kb3 h5 47.a4 Ne3 48.ab5 Kb5 49.Nc3 Kc6 50.Ne2 Nf1+= 51.Nf4 fe4 52.fe4+/– Nd2 53.Kc3 Ne4 54.Kd3 Nf2 55.Ke2 Ng4 56.h3 Nh6 57.Ne6 Kd6 58.Nf4+– Nf5 59.Kf2 g5+/– 60.Nh5 Nd4 61.Ke3 Ke5 62.g4 Ne6 63.Kf2 Ke4 64.Kg3+/– Ke5 65.Kf2 Nf8 66.Ke3 Ng6 67.Kf3+= Nh4 68.Kg3 Ng6 69.Ng7 Nh4 70.Ne8 Ng6 71.Ng7 Nh4 72.Kf2 Ng6 73.Nf5+/– Nf4 74.Kg3 Nh5 75.gh5 Kf5= 76.Kf3 Kf6 77.Ke4 ½–½. Berlacki,Piotr – Menzinger,O, Bad Woerishofen, 1992.

8.d4 Bb7 9.c5 bc5 10.Ba3 =.

8.d4 Bb7 9.c5 c6 10.Qb3 (10.Ba3 Re8=) 10...Nbd7 (10...bc5 11.dc5 Nfd7 12.Ba3=+) 11.Na4 bc5 12.dc5 Qc7 13.Rc1 Rfc8 14.Nd4 Qd8 15.bc6 Bc6 16.Nc6 Rc6 17.Bb5 Rc7 18.0-0 Ne4 19.Bg7 Kg7 20.c6 Ne5 21.f3 Nd6 22.Nc5 (22.f4!? Nec4 23.Nb2=+) 22...Nb5–/+ (22...Nc6 23.Bc6 Rac8 24.Qa4+/–) 23.Qb5 Rc6 24.f4 Rb6 (24...Qb6 25.Qb3–/+) 25.Qa4 (25.Qa5 Nc4 26.Qc3 f6–/+) 25...Nc4 26.e4 Qc7 27.Nd3–/+ Qc6 28.Qc6=+ Rc6 29.ed5 ed5 30.Nb4 Rd6 31.Nd5 Rd5 32.Rc4 ½–½. Zschalich,A – Schmidt,E, corr DDR, 1989.

8.d4 Bb7 9.cd5 Nd5 10.Nd5 ed5 =.

6.a4 0-0 7.c4 c6 (--> 5.c4 c6 6.a4 Bg7 7.Nf3 0-0).

6.a4 0-0 7.Be2 a6 8.0-0 ab5 9.ab5 Ra1 10.Ba1 c6 11.Be5 Nbd7 12.Bd6 Re8 13.c4 cb5 14.cb5 Ne4 15.Bb4 Qb6 (15...Ng5 16.Ng5 Qg5 17.d4+=) 16.d4+= Ndf6 17.Qb3 Bd7 Attacking the isolated pawn on b5 18.Ne5 Bb5? (better 18...Rc8+=) 19.Ba3+- Nd6 (19...Ra8 20.Bb5 Ra5 21.Rc1+-) 20.Bd6 (20.Bd6 Qd6 21.Bb5+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

6.c4 a6 7.Qa4 =.

6.c4 a6 7.ba6 b6 8.cd5 ed5 9.Qa4 Bd7 10.Qa3 =.

6.c4 c6 7.a4 0-0 8.Be2 (8.d4 Nbd7=) 8...a6 9.0-0 ab5 10.ab5 cb5?? (better is 10...Ra1 11.Ba1 dc4 12.Bc4 cb5 13.Bb5 Bd7=) 11.Ra8+– Nc6 12.cd5 Nd5 13.Bb5 Qb6?? 14.Bg7 Kg7 15.Bc6 bc6 16.Nc3 Ba6 17.Nd5 cd5 18.Qa1 f6 19.Ra6 (19...Qb8 20.Ng5+–) 1–0. Moxie – Mnvikings, Live Game Caissa's Web, 2005.

6.d4 a6!?=.

6.d4 c6 7.a4 cb5 8.ab5 b6 9.Bd3 0-0 10.0-0 Nbd7 11.c4 Bb7 12.cd5 (12.Nbd2 Ne4+–) 12...Bd5 (12...Nd5 13.Nbd2 Qc8+–) 13.Nbd2+– Qb8 14.e4 Bb7 15.e5 (better 15.g3+–) 15...Ne8? (better 15...Nd5+–) 16.Ba3+– Kh8 (16...Nc7 17.Bf8 Qf8 18.Re1+–) 17.Bf8 Bf8 18.Ng5 Kg7 19.Qg4 Qd8 20.Qf4 Qe7 21.Be4 (21.Rfc1 h6 22.Nge4 Qb4+–) 21...Be4 22.Nde4 h6 23.Nf3 f5 24.ef6! Nef6 (24...Ndf6 25.Rfc1 Combination; 24...Nef6 25.Ne5 Combination) 25.Nf6 Nf6 26.Rfc1 Qd6 (26...Nd5 27.Qe4 Qf6+–) 27.Ne5 g5 (27...Qe7 28.Ng4 Ng4 29.Rc7+–) 28.Qf3 Rd8 (28...Qb8 29.Rc6 g4 30.Qd3+–) 29.Qd3 (better 29.Ra7 Be7 30.Rcc7+–) 29...Qd4 (29...Qe5 30.Ra7 Kh8 31.de5 Rd3 32.ef6 Kg8+–) 30.Qg6 Kh8 31.Nf7 1–0. DEFFM – GuestJBMZ, freechess.org, 2019.

6.d4 Rf8 7.Bd3 c6 (7...a6!?+–) 8.a4 a6 9.Ba3 Rg8 10.0-0 ab5 11.ab5 Bf8 (better 11...cb5!? 12.Nc3 Bf8 13.Nb5 Ba3 14.Na3 Nc6+–) 12.Be7!+– Be7 (12...Qe7 13.Ra8 Discovered attack; 12...Ke7 13.Ra8 Discovered attack; 12...Be7 13.Ra8 Discovered attack) 13.Ra8 Nbd7 14.bc6 bc6 15.Ba6 Nb6 16.Ra7 Kf8 17.Ne5 Bd7 (17...Ba6 18.Nc6 Qd6 19.Ne7 Bf1 20.Ng8 (20.Qf1?! Rh8+=; worse 20.Kf1 Rh8–/+) 20...Kg8 21.Qf1+– (21.Kf1?! Qh2 22.Qf3 Qb8+–)) 18.Qf3 Qb8 (18...Rg7+–) 19.Rb7 Qd8 20.Rb6! Qb6 21.Qf6!! Bf6 (21...Bf6 22.Nd7 Double attack) 22.Nd7 Kg7 (22...Ke7 23.Nb6 Rb8 24.Na4+–) 23.Nb6 Rb8 24.Nd7 Rb2 25.Bd3 h5 (25...Be7 26.Nc3 Rb7 27.Ne5+–) 26.c4 (26.Nd2 Rb7 27.Nf6 Kf6+–) 26...dc4 (26...Be7 27.Ne5 c5 28.cd5 ed5 29.Nc3 cd4 30.ed4+–) 27.Bc4 g5 (27...Be7 28.Ne5+–) 28.Rc1 Be7 (28...h4 29.Nf6 Kf6 30.Bd3+–) 29.Ne5 c5 (29...Bd6 30.Nc6 Rb6 31.Bd3+–) 30.dc5 Bc5 (30...Rb8 31.c6 Bd6 32.Nd7+–) 31.Nd3 Rb8 32.Nc5 Rc8 33.Be6! fe6 34.Ne6 (34.Ne6 Kf6 35.Rc8 Ke6 36.Nc3+–) 1–0. DEFFM – GuestSNYD, freechess.org, 2019.

6.d4 Nh5 7.Be2 Nf6 8.0-0 0-0 9.a4 a6 10.c4 ab5 11.ab5 Ra1 12.Ba1 c6 13.bc6 bc6 14.c5 (14.Bb2 Nbd7+=) 14...Ba6= 15.Nc3 Be2 16.Qe2 Nbd7 17.Ne5 (better 17.Rb1=) 17...Qe7?? (better 17...Ne5!? 18.de5 Nd7-/+) 18.Nd7 (better 18.Nc6 Qe8 19.Qb5+-) 18...Nd7= 19.f4 (19.Qa6 Nb8 20.Qb6=) 19...e5 (better 19...Ra8!?=+) 20.fe5+= f6 21.ef6 Nf6 22.Nd1 Re8 23.Bc3 Ne4 24.Qc2 Bh6 25.Re1 (25.Ba5 Ra8 26.Bb6 Ra1=) 25...Kg7 26.Nf2? (26.Ba5 Rf8=) 26...Nf6?? (better 26...Nf2 27.Qf2 Be3 28.Re3 Qe3-+) 27.h3 (27.Bd2!?+=) 27...Be3= 28.Kh2 Bf4?? (better 28...Qc7 29.g3 Bf2 30.Qf2 Ne4=+) 29.g3+- Bg3 (29...Qc7 30.gf4 Qf4 31.Kg2 Re1 32.Be1 Qd4 33.Bc3+-) 30.Kg3 Qe1? (30...Qf7+-) 31.Be1 Re1 32.Qd2 Re6 33.Qf4 (33.Kf3 h5+-) 33...h6?? (better 33...Nh5 34.Kg4 Nf4 35.Kf4 h6-+) 34.Qc7+- Re7 (34...Kf8+-) 35.Qf4 (35.Qe7 Kh8 36.Qf6 Kg8 37.Nd3 h5 38.Ne5 h4 39.Kg4 g5 40.Qf7 Kh8 41.Ng6) 35...Nh5-+ 36.Kg4 Nf4 37.Kf4 Rf7 38.Kg3 Rf2! 39.Kf2 Kf6 40.Kf3 g5 41.Kg4 Kg6 42.Kf3 h5 43.Kg3 Kf5 44.Kf3 g4 45.hg4 hg4 46.Kg3 Ke4 47.Kf2 Kd4 48.Kg3 Kc5 49.Kg4 Kc4 50.Kf5 Kc3 (50...d4 51.Kf4-+) 51.Ke6 d4 (51...Kd4 52.Kd6 c5 53.Kc6-+) 52.Kd6 d3 (52...d3 53.Kc5 d2 54.Kc6 d1Q 55.Kc7 Qd4 56.Kc6 Kc4 57.Kb7 Kc5 58.Kc7 Qg7 59.Kd8 Kd6 60.Ke8 Qe7) 0-1. CronusCR (2240) - hugomaese (2340), Weekly HyperBullet Arena, lichess.org, 2017.

6.Be2 0-0 7.0-0 c5 8.c4 a6 9.Qc2=.

6.Be2 0-0 7.0-0 c5 8.c4 Nbd7 9.Nc3 b6 (9...dc4 10.Bc4 Re8 11.Qc2+=) 10.cd5+= ed5 (10...Nd5 11.Qc2+=) 11.d4 cd4 (11...a6 12.dc5 Nc5 13.a4+=) 12.Nd4+/– Nc5 13.Nc6 Attacks the isolani on d5 13...Qd7 14.a4 (14.Bf3 Nfe4 15.Rc1 Re8+/–) 14...Bb7 (14...a6 15.Nd4+=) 15.Ne5 (15.Bf3 a6+=) 15...Qe6 (15...Qe7 16.Nf3+=) 16.Nd3 (16.Nf3 Ng4 17.Rc1 Rfc8+=) 16...Nd3 (16...Rfd8 17.Nb1=) 17.Bd3 (17.Qd3 Ne4+=) 17...Rac8 (17...Ne4!? 18.Ra3 Nd6=) 18.Ne2+/– Rfd8 (18...Rfe8 19.a5+=) 19.Nf4 (19.a5 Qd6 20.Bd4 Ng4+=) 19...Qd7 (19...Qg4 20.a5+/–) 20.Bd4 (20.a5 Ne4 21.Bg7 Kg7+/–) 20...Ne4+= 21.Ne2 Nc3 22.Bc3 (22.Qd2 Ne2 23.Be2 Qf5+/–) 22...Bc3= 23.Nc3 Rc3 24.a5 Qc7 (24...d4 25.e4=) 25.Qd2 (25.a6 Bc8+=) 25...d4= 26.ab6 Qb6 (26...ab6 27.Rfe1=) 27.e4 Rdc8 (better is 27...Re8 28.Rfe1 Re7+=) 28.Rfc1 (28.Rfd1 Re8 29.f3 Bc8+=) 28...R8c7 (28...Rc1!? 29.Rc1 Rc1 30.Qc1 a6+=) 29.Rc3 (29.Rd1 f6+=) 29...dc3= 30.Qc2 Bc8 31.g3 (31.Ra3 Qc5 32.Ra4 Qg5=) 31...Bd7 Attacking the isolated pawn on b5 32.Rb1 Rc5 The pressure on the isolated pawn grows 33.Kg2 h5 34.h4 (34.Ra1 h4 35.gh4 Bb5 36.Bb5 Qb5 37.Ra7 Rc4=) 34...Kh7 (34...Bb5 35.Bb5 Rb5 36.Rb5 Qb5 37.Qc3=) 35.Qa2 Be6 36.Qe2 Qa5 (36...Kg8 37.Rc1=) 37.f4 (37.Rc1 Qa3 38.Qe3 Rc8=) 37...Qa2 (37...Kg8 38.Rc1=) 38.Qa2 Ba2 39.Rc1 Bb3 40.Kf3 Ba4 (40...Rc7 41.e5=) 41.Ke3+= Rc7 (41...Bb5? 42.Kd4+–) 42.f5 (42.e5 Kh6=) 42...Kg7 (42...gf5 43.ef5 Kg7 44.Kd4=) 43.e5 gf5 44.Kd4 c2 45.Bf5 Bb5 (45...Bb3 46.Bd3=) 46.Rc2 (46.Bc2? Ba4 47.Ba4 Rc1–+) 46...Rc2 47.Bc2 a5 (47...Be2 48.Bf5=) 48.Bb1 (48.Kc5 Bd7+=) 48...Bd7 (48...Ba4 49.Be4=) 49.Kc5+= Kf8 (49...Be8 50.Bf5+=) 50.Kd6 (50.Bd3 Kg7+=) 50...Ke8 (50...Ba4 51.Bd3+=) 51.Kc5 (51.Bd3 Bg4+=) 51...Kf8 (51...Ke7 52.Bc2=) 52.Bc2 Kg7 (52...Ke7 53.Bd1 Bg4 54.Bg4 hg4 55.h5+=) 53.Bd1 (53.Kd6!? Bb5 54.Bd1+=) 53...Kg6+= 54.Bc2 Kg7 55.Bd3 Kh6 56.Be2 (56.Kd6 Bg4 57.Bc2 Kg7+/–) 56...Kg6= 57.Kd6 (57.Bf3 Kh6=) 57...Be6 (57...Bg4 58.Bb5=) 58.Bd3 (58.Bd1 Kf5+=) 58...Bf5 59.Bb5 Bc2 (59...Bg4 60.Bc6=) 60.Kd5 (60.Bc4 Kg7 61.Kc5 Bd1=) 60...a4 61.Kd4 a3 62.Kc3 a2 63.Kb2 Bb1 (63...Bb3 64.Bd3 Kg7 65.Be2+=) 64.Be8 (64.Be2 Kh6+=) 64...Kg7 (64...Bf5 65.Ka2 Be6 66.Kb2=) 65.Ka1 Kf8 66.Bd7 Kg7 (66...Ke7 67.Bh3+=) 67.Kb2 Kg6 68.Be8 (68.Bc6 Kg7+=) 68...Kg7 (68...Bf5 69.Ka2 Be6 70.Kb2=) 69.Ka1 Kf8 70.Bd7 (70.Bb5 Kg7+=) 70...Kg7 71.Bc6 Kg6 72.Bd5 (72.Bf3 Kh6=) 72...Kg7 (72...Bf5 73.Ba2 (73.Ka2?? Be6–+) 73...Be6 74.Bb1 Bf5 75.Ba2=) 73.Bc4 (73.Bf3 Kg6+=) 73...Kg6 (73...f6 74.ef6 Kf6 75.Be2=) 74.e6 (74.Kb2 Kg7+=) 74...fe6 75.Be6 Kf6 76.Bd7 Bg6 (76...Bf5 77.Bc6=) 77.Ka2 Ke5 78.Kb2 ½–½. Hirt,Robert – Schmidt,Eckhard, corr DDR–M–793, 1988.

6.Be2 0-0 7.0-0 c5 8.c4 Nbd7 9.d4 b6 10.Nbd2 Bb7 11.Qc2 dc4 12.Nc4 cd4 13.ed4 (13.Bd4 Be4 14.Qb2 Qe7+=) 13...Rc8 14.Qa4 Bf3 (14...Nd5!?=) 15.Bf3+= Qc7 16.Rac1 Qb8 17.Ba3 Nd5 (better 17...Rfe8!?+–) 18.Bf8+– Bf8 19.Bd5 ed5 20.Ne3 Nf6?! (20...Rc1 21.Rc1 Nf6+–) 21.Rc8 Qc8 22.Qa7 1–0. GuestFQTS – GuestHZFR, freechess.org, 2018.

6.Be2 0-0 7.0-0 c5 8.c4 Nbd7 9.d4 Qe7=.

6.Be2 0-0 7.d3 Bd7 8.a4 a6 9.c4 ab5 10.cb5 c6 11.Qb3 (better is 11.Nc3!?=) 11...cb5–/+ 12.ab5 Ra1 13.Ba1 Qa5 14.Bc3 Qb5 15.Qb5 Bb5 16.0-0 Nc6 17.Na3 Ba6 18.Rb1 Rb8 19.Nb5 Nd7 20.Bg7 Kg7 21.d4 Nf6 22.Bd1 Ne4 23.Ba4 Bb5 24.Bb5 Nc3 25.Rb3 Nb5 26.Rb5 b6 27.g4 Na5 28.Ne5 Nc4 29.Nc6 Rc8 30.Nb4 Ra8 31.Kg2 (31.Nc6 f6–+) 31...Ra5 32.Ra5 ba5 (worse is 32...Na5 33.Kf3–/+) 33.Na2 a4 34.Kf3 f5 35.g5 h6 36.h4 hg5 37.hg5 Kf7 38.Ke2 Ke7 (38...a3 39.Kd3–+) 39.Kd3–/+ Kd6 40.f4 (40.Nc3!? a3 41.Kc2–/+) 40...a3 41.Nb4 Kc7 42.Nc2? (better is 42.Kc3 Ne3 43.Kb3–+) 42...a2 43.Kc3 (43.Na1–+) 43...Ne3! 44.Na1 (44.Ne3 a1Q Skewer) 44...Ng2 45.Kb2 Nf4 46.Nb3 Nh3 0–1. Junghaenel,Dieter (1755) – Schmalzried,Volker (1755), Berlin Lichtenberger op 7th, 2008.

6.Be2 a6 =.

6.Be2 c5 7.c4 0-0 8.0-0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3+= Qa2 (12...Qb6 13.d3+=) 13.Be5 (13.d3 Nbd7+=) 13...Nbd7 14.Nc3 Qa8 15.Bd6 Re8 16.Qb3 (16.d4 b6=) 16...dc4 (16...b6 17.d3=) 17.Bc4 Nb6 (better 17...b6!?=) 18.Bc5+– Nc4 19.Qc4 b6 20.Bb6 Nd7? (20...Bb7!? 21.Qe2 Nd7+–) 21.Bd4+– Bd4 (better 21...Bb7 22.Bg7 Kg7+–) 22.Qd4 (22.ed4?! Bb7 23.Qd3 Nb6+–) 22...f6 (22...e5 23.Qd6+–) 23.Ne4 e5 (23...Rf8+–) 24.Qc4 Kf8 (24...Kh8 25.Nd6 Rf8+–) 25.Nd6 Nb6 (25...Ke7 26.Qb4 Kf8+–) 26.Qf7 1–0. GuestNTFH – GuestLGDY, freechess.org, 2020.

7.a4 c6 8.Be2 a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.0-0 e5 13.cd5 cd5 14.d3 Qb6 15.d4 ed4 (15...e4 16.Nd2+=) 16.Nd4 Ne4 (16...Re8 17.Rc1+=) 17.Ne4 (17.Nd5!? Qc5 18.Nf4+–) 17...de4+– 18.Rc1 Bd4 (better 18...Rd8!?+=) 19.Bd4+– Qb5?? (better 19...Qd6+–) 20.Bb5+– (20.Bb5 f6 21.Qa2 Kg7 22.Qe6+–) 1–0. GuestHWQG – Troi, freechess.org, 2017.

7.a4 c6 8.Be2 cb5 9.ab5 dc4 10.0-0 Qd5 (10...Nbd7!?+=) 11.Nc3+- Qc5 (11...Qd8!?+-) 12.Ba3+- Qa3?? (better 12...Qc7 13.Bf8 Kf8+-) 13.Ra3 Bd7 (13...Nd5 14.Bc4 Nc3 15.dc3+-) 14.Bc4 b6 (14...a5 15.ba6! Nc6 16.d4+-) 15.Ne5 Ne8 16.Nd7 (better 16.d4!? Nd6 17.Bd3 Bc8+-) 16...Nd7 17.d4 Nd6 18.Bd3 Nf6 (18...Rfc8 19.Qf3+-) 19.e4 Nde8 (19...Nd7 20.e5 Nf5 21.Bf5 gf5 22.Qf3+-) 20.e5 Nd5 (20...Nd7 21.Qb3+-) 21.Nd5 ed5 22.Qf3 (22.Qc1 Bh8+-) 22...Nc7 23.Rfa1 a6 (23...Ne6 24.Qe3+-) 24.ba6 Na6 25.Ra6 Ra6 26.Ra6 Rb8 27.Qd5 Bf8 28.Bc4 Rb7 (28...Kg7 29.Qf7 Kh6 30.Ra7 b5 31.Qf4 g5 32.Qf6 Kh5 33.Be2 g4 34.Rh7 Bh6 35.Rh6) 29.Qb7 (29.Qb7 Be7 30.Qe7 Kg7 31.Qf6 Kh6 32.Ra3 Kh5 33.f4 b5 34.Qg5) 1-0. DEFFM – GuestDFVN, freechess.org, 2020.

7.a4 Bd7 8.Nc3 c6 9.Be2 b6 (9...a6 10.cd5 ed5 11.0-0=) 10.Qb3 c5 (10...a6 11.cd5 cd5 12.0-0+=) 11.0-0 dc4 12.Bc4 Bc8 13.Rfd1 Bb7 14.Be2 Qc7 15.h3 (15.d4 Nbd7+=) 15...Rd8= 16.d4 Nbd7 17.dc5 (17.Rac1 Rac8=) 17...Nc5 18.Qc2 Rac8 19.Rac1 Rd1 20.Rd1 (20.Qd1 Nfe4 21.Nd4 Nc3 22.Rc3 Rd8=) 20...Nce4 (better 20...Nfe4 21.Ne4 Be4-/+ (worse 21...Ne4 22.Qc7 Rc7 23.Rd8 Bf8 24.Ne5+=)) 21.Rd3?? (better 21.Rc1=) 21...Nd5-+ 22.Qd2 (22.Nd4 Nec3 23.Bd1 e5-+ (worse 23...Nd1 24.Qd1 Qe7 25.Qd2-+)) 22...Ndc3 (better 22...Nd2 23.Nd4 Bd4 24.ed4 Qf4-+) 23.Qe1 Ne2 24.Qe2 Bb2 25.Qb2 Qc1 26.Qc1 Rc1 27.Kh2 Nf2 (better 27...Rh1 28.Kh1 Nf2 29.Kh2 Nd3-+) 28.Ne5 (28.Rd8 Kg7 29.Rd7 Rh1 30.Kg3 Ne4 31.Kh4-+) 28...Nd3 29.Nd3 Rc3 30.Nf4 (30.Nf2 Re3 31.Kg1 Rg3-+) 30...Re3 31.Kg1 (31.h4 e5 32.Nh3 Re2-+) 31...Re4 (31...e5!? 32.Ng6 hg6 33.Kf2-+) 32.g3 Ra4 33.Nd3 (33.Kf2 Ra5-+) 33...Rd4 (33...Ra3!? 34.Ne5 Rg3 35.Kf2 Rh3 36.Nc4-+) 34.Ne5 Rd5 35.Nc4 Rb5 36.Nd6 Rb1 37.Kf2 Bd5 38.Nc8 a5 39.Nb6 Rb6 40.Ke2 Rb3 41.Kd2 a4 (41...a4 42.h4 a3 43.Ke2 a2 44.Kd2 a1Q 45.h5 Qa2 46.Ke1 Rb1) 0-1. AhmedSultanov (1775) - platina21 (1815), lichess.org, 2019.

7.d4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 cb5 12.Nb5 (12.cb5 Nbd7=) 12...Bd7=+ 13.Qb3 Bb5 (13...Nc6!? 14.Nd6 Na5=+) 14.Qb5= Nc6 15.Bd3 (15.Qb7 Qa5 16.Ke2 Rb8 17.Qb8 Nb8–+) 15...Qa5 16.Qa5 Na5 17.cd5 ed5 18.Ke2 Nc6 (18...Nc4 19.Bc3+=) 19.Rb1+– Rb8 20.Bc3 Ne4 21.Be4 de4 22.Ng5 f5 23.Ne6 Ne7 24.Rb5 Kf7 (24...b6 25.Bb4 Bf6 26.Nc5+=) 25.Ng7 (25.Nc5 b6 26.Nd7 Rb7 27.Nb6 f4+–) 25...Kg7 26.Bb4 Kf7 (26...Nc8!?+–) 27.Bd6+– Re8?? (better 27...Nd5 28.Rd5 Rd8+–) 28.Rb7 Ke6 29.Be7 Re7 30.Re7 Ke7 31.Kd2 Kd6 32.Kc3 Kd5 33.h3 g5 (33...Kd6+–) 34.g4 f4 (34...fg4 35.hg4 h6+–) 35.Kb3 h6 (35...Ke6 36.Kc4 Ke7 37.Kd5+–) 36.Kb4 f3 (36...Kd6 37.Kc4 Ke6 38.d5 Kd6+–) 37.Kb5 1–0. Janek – Gusten, internet, 2018.

7.d4 a6 8.Nc3 ab5 9.cb5 c5 10.Bd3 (10.dc5 Ne4 11.Rc1 Qa5= (< 11...Nc5 12.Qd2=)) 10...b6 (10...c4 11.Bc2=) 11.0-0 (11.dc5 bc5 12.0-0 Nbd7=) 11...Nbd7 12.Qc2 Re8 (12...Qe7 13.Rfc1=) 13.Na4 (13.Rfc1 c4 14.Be2 e5=) 13...c4 14.Be2 Bb7 15.Ng5 (15.Nc3 Qc7=) 15...Qc7 (15...e5 16.de5 Ne5 17.Rfd1=) 16.Rac1 Bh6 17.Nh3 (17.Nf3 Ng4 18.Nc3 e5 19.de5 Ne3 20.fe3 Be3 21.Kh1 Bc1 22.Qc1 Rac8+=) 17...Ne4 18.Nc3 Nc3 19.Bc3 Bf8 20.Ng5 Ra3 21.Bd2 (21.Nf3 Nf6=+) 21...Rea8 22.Ra1 Bd6 23.f4 Nf6–/+ 24.h3 Bc8 25.Rfb1 Qa7 26.Rb2 h6 27.Nf3 Ne4 28.Rbb1 Ra2 29.Ra2 Qa2 30.Rb2 Qa4 31.Qa4 Ra4 32.Be1 Ra1 33.Kh2 Bd7 34.g3 Ba3 (35.Rc2 Bb5–+) 0–1. Waibel,Ulrich – Pope,CR, compuserve, 1997.

7.d4 c6 8.a4 (--> 5.c4 c6 6.a4 Bg7 7.Nf3 0-0 8.d4).

7.d4 Ne4 8.Nc3 f5 9.Qb3 a5 10.Bd3 Qd6? (better is 10...Nc3 11.Qc3 c5+/–) 11.Ba3+– (11.cd5?! a4 12.Na4 Qd5+–) 11...Nc5?? (11...Qd8 12.Bf8 Bf8+–) 12.Bc5 Na6 (12...Qd8 13.Bf8 Bf8 14.cd5 a4+–) 13.Bd6 Nb4 14.Bf8 Nc2 15.Bc2 Bd4 16.ed4 b6 17.Qa3 c5 18.bc6 Ba6 19.Qe7 Bc4 (19...Rf8 20.Ng5 Rf6 21.Qf6 h5 22.Qg6 Kh8 23.Nf7) 20.Qg7 1–0. Janek – Larry, internet, 2016.

7.Be2 a6 8.d4 =.

7.Be2 c5 8.0-0 a6 9.Qa4 =.

7.Be2 c5 8.0-0 b6 9.Qc2 (9.cd5 ed5 10.d4 c4=) 9...Bb7 (9...dc4 10.Bc4 Bb7 11.Be2=) 10.Rd1 (10.cd5 Bd5 11.Nc3 a6+=) 10...Qc7 (10...dc4 11.Qc4 a6 12.Nc3=) 11.d3 (11.cd5 ed5 12.d4 Nbd7+=) 11...Rd8 (11...a6 12.Nc3=) 12.Be5 (12.cd5 ed5 13.d4 c4=) 12...Qe7 13.Nbd2 (13.Nc3 Nbd7=) 13...Nbd7 14.Bc3 Qd6 (14...e5 15.d4=) 15.Nf1 (15.cd5 ed5 (15...Bd5? 16.e4+–) 16.d4 c4=) 15...Qc7 (15...a6 16.ba6 Ra6 17.cd5 Qd5 18.d4=) 16.Qb2 (16.cd5 ed5 17.a4 a6=) 16...Re8 (16...a6 17.ba6 Ra6 18.Ne5=) 17.Ne5 Rad8?? (better is 17...Ne5 18.Be5 Qe7=) 18.Nd7+– d4 19.Nf6 (19...Bf6 20.ed4 cd4 21.Bd2+–) 1–0. Kreuzer,Uwe – Inhofen, 1982.

7.Be2 c5 8.Qc2 dc4 9.0-0 b6 =.

8.0-0 a6 9.Qa4 =.

8.0-0 a6 9.d4 =.

8.0-0 c6 9.a4+= a6 10.d4 +=.

8.0-0 c6 9.a4 cb5 10.ab5 b6 11.d4 Bb7 12.Nbd2 Nbd7 13.Qc2 Nd5 (13...Qb8 14.Rfc1+–) 14.Qb3 (14.Ba3 Ne7+–) 14...N7f6 (14...Qb8 15.Rfc1+–) 15.Rfc1 Qd7 (15...Ne8 16.Ne5+–) 16.Ne5 Qd8 17.Nc6 (17.Ndf3 Re8+–) 17...Bc6 18.bc6 Qc7 19.Bd5 (19.Ba6!? Rab8 20.e4+–) 19...Nd5+= 20.Ne4 (20.Ra6 Rfb8+=) 20...Rfc8 (20...a6 21.Ng3+=) 21.Ba3 (21.Ra6 Qd8+=) 21...Bf8 (21...Rd8 22.Rc4=) 22.h3 (22.Bf8 Rf8 23.Ra6 Rfd8+–) 22...a6 (22...Ba3 23.Qa3 b5 24.Qb2+=) 23.f4 (23.Bf8 Rf8 24.Ng5 b5+=) 23...b5 (23...Ba3 24.Qa3 b5 25.Qd6=) 24.Bc5 (24.Bf8 Kf8 25.Ra2 Kg8=) 24...b4 (24...Qc6 25.Ba3 Qe8 26.Rc8 Qc8 27.Rc1–/+) 25.Qd3 (25.Bf8 Kf8 26.Rc5 a5=) 25...a5 (better 25...Qc6 26.Ra5 f5–/+) 26.Qb5? (26.Bf8!? Kf8 27.Ra4=+) 26...Bc5 (26...Qc6 27.Qe2–+) 27.Rc5 (27.Qc5 Ne3 28.Nf6 Kg7–/+) 27...Ne3–+ 28.Nf6 (28.g3!?–+) 28...Kg7 29.Nd7 (29.Qd3 Qf4 (29...Kf6?! 30.Qe3 Kg7 31.f5–/+) 30.Nd7 Qg3–+) 29...Nd5 (29...Qf4 30.Qd3 Qg3 31.Ra2 Qe1 32.Kh2 Nf1 33.Kg1 Ng3 34.Kh2–+) 30.Rd5 (30.g3 g5! 31.Ra5 Ra5 32.Qa5 Qa5 33.Ra5 gf4–+) 30...ed5 31.Qd5 Qc6 32.Qe5 Kg8 (32...f6!? 33.Qe7 Kh8 34.Nf6–+) 33.Nf6 (33.Nf6 Kh8 34.Nd5 f6 35.Nf6–+). GuestKYJS – GuestFBYP, freechess.org, 2018.

8.0-0 c6 9.a4 cb5 10.ab5 Qc7 11.d3+=.

8.0-0 c6 9.a4 cb5 10.ab5 Nbd7 11.Nc3 Nb6 12.Bb3 Nfd5 13.d4 Nc3 14.Bc3 Nd5 15.Bb2 a6 16.ba6 ba6 17.e4 Nf6 18.Qe2 Bb7 19.Ba3 (19.Bc2 Qc7+=) 19...Re8 20.Ba4 Nd7 (20...Be4!? 21.Be8 Qe8+=) 21.Rab1 Bc8 (21...Ra7 22.Ne5! Be5 23.de5+/–) 22.Ne5 Bf8 (22...Ne5 23.Be8; 22...Be5 23.de5) 23.Bf8 (23.Qf3 Ne5 24.de5 Bd7+–) 23...Rf8 24.Nc6 Qf6? (better is 24...Qc7+/–) 25.e5+– Qg7 26.Ne7 Kh8 27.Nc8 Ne5 28.de5 Rfc8 29.Rb7 h6 30.f4 Rcb8 31.Rfb1 Rb7 32.Rb7 Qf8 33.Qe3 Kg7 34.h3 Qc8 35.Qf3 Qc4 36.Bb3 Qc1 37.Kh2 Rf8 38.Be6 a5 39.f5 (39...Qg5 40.Ra7+–) 1–0. Fredek (2090) – Guest10087, Freundschaftspartie, 5m + 0s, 2005.

8.0-0 c6 9.a4 Qb6 10.d3 Bd7 (10...Nbd7 11.a5 Qc7 12.Nc3+=) 11.Bd4+/– Qc7 12.Be5 (12.Nc3 c5 13.Be5 Qa5+/–) 12...Qc8 (12...Qb6 13.Qe2+=) 13.Nbd2+/– cb5 (13...a6 14.Qb1+/–) 14.ab5 Ne8 (14...h6 15.Nd4+/–) 15.Ne4 (15.Qb3 Qd8+/–) 15...Be5 (15...Qd8 16.Qb3+/–) 16.Ne5+– Qc7 17.d4 Bc8 18.Qb3 Nd7 19.Rfc1 (better is 19.Nd7!? Bd7 20.b6+/–) 19...Ne5+= 20.Be2 (20.Bd3 Qb8 21.de5 Qe5+=) 20...Qb8 21.Rc8 Qc8. Roczniak,Jan – Czajkowski,Piotr, corr Poland, 1985.

8.0-0 c6 9.d4 cb5 10.Bb5 a6 +=.

8.d4 b6 9.Qb3 Bb7 (9...a6 10.a4=) 10.Nbd2 Nbd7 (10...a6 11.a4 ab5 12.Bb5=) 11.0-0+= c5 (11...Ne4 12.Ne4 Be4 13.Be2+=) 12.bc6 Bc6 13.Rfc1 (13.Bd3 Qb8+=) 13...Bb7 (13...b5 14.Bd3 (14.Bb5? Bb5 15.Ba3 Rb8–+) 14...Bd5 15.Qb4+= (15.Qb5? Rb8–+)) 14.Bd3+– Rc8 15.Ba3 Rc1 (15...Re8 16.Ng5+–) 16.Rc1 (worse 16.Bc1 Qa8=) 16...Re8 17.Nc4 (17.Ng5 Qb8+–) 17...Bf3 18.gf3 Qa8 (18...Nd5 19.Qa4 Qg5 20.Kh1+–) 19.Nd6 Rd8 20.Kg2 (better 20.e4+–) 20...Nh5? (better 20...Bf8+=) 21.Bb5 (21.Rc7 Bf8 22.Be4 Qb8+–) 21...Ndf6 (21...Nhf6 22.Rc7 Bf8 23.Bc6+–) 22.Rc7 Rf8 (22...Rd6 23.Bd6 Qd8 24.Bg3 Ng3 25.Qc4+–) 23.Bc6 Qb8 (23...Qd8 24.Ra7 Nd5+–) 24.Rb7 Qd8 (24...Qb7 25.Bb7 Rd8 26.Nc8+–) 25.Nf7! Rf7 (25...Qc8 26.Nd6 Qc6 27.Qe6 Kh8 28.Nf7 Rf7 29.Qc6 Rb7 30.Qb7+–) 26.Qe6 (26.Qe6 Kh8 27.Qf7+–) 1–0. ggo7801g – kadelk85, private chess game online, 2018.

7.a4 Bd7 8.Nc3 c6 9.Bd3 Qc7 1–0. Bardyn,K – Krzyzanowski,J, Radom–ch corr Poland, 1993.

8.Nc3 a5 A) 9.Bd3 dc4 (9...Nb6 10.cd5 ed5 11.0-0 Re8 12.h3 Qd6 13.a4 Ne4 14.Qc2; 9...Re8 10.cd5 Nd5 11.0-0 Nc3 12.Bc3 e5 13.Qc2 Qe7 14.Ne5) 10.Bc4 Nb6 11.Bd3 Nfd5 12.0-0 a4 13.Nd5 ed5 14.Bc3; B) 9.Qc2 a4 (9...c5 10.bc6 bc6 11.Ba3 Re8 12.cd5 Nd5 13.Ne4 c5 14.Nd6; 9...Re8 10.cd5 ed5 11.Bd3 Nb6 12.0-0 Be6 13.Rac1 Qd6 14.h3; 9...Qe7 10.cd5 ed5 11.Bd3 Nb6 12.0-0 a4 13.a3 Be6 14.h3; 9...dc4 10.Bc4 Nb6 11.Be2 Nbd5 12.0-0 Qd6 13.e4 Nc3 14.Bc3) 10.Na4 Qe7 11.Qb3 Rd8 12.Ba3 Qe8 13.Be2 e5 14.b6; C) 9.ba6 Ra6 (9...ba6 10.Bd3 c5 11.0-0 Rb8 12.Qe2 Qc7 13.cd5 ed5 14.Rab1; 9...b6 10.Ba3 c5 11.cd5 Ba6 12.Ba6 Ra6 13.Bb2 Nd5 14.Qe2; 9...c5 10.cd5 ed5 11.Qb3 ba6 12.Nd5 cd4 13.Nf6 Bf6 14.Nd4) 10.cd5 Rb6 11.Na4 Rb2 12.Nb2 ed5 13.Bd3 c5 14.0-0; D) 9.cd5 ed5 10.Bd3 Nb6 11.0-0 Re8 12.h3 Be6 13.Qe2 Qd6 14.Rac1.

8.Nc3 a6 9.ba6 b6 (9...Ra6 10.cd5 Rb6 11.Na4 Rb2 12.Nb2 ed5 13.Be2 c5 14.0-0; 9...c5 10.cd5 ed5 11.dc5 Nc5 12.Rc1 b6 13.Ne5 Re8 14.f4; 9...ba6 10.Be2 Rb8 11.Rb1 c5 12.0-0 Bb7 13.cd5 cd4 14.Nd4) 10.cd5 Nd5 11.Nd5 ed5 12.Ba3 Re8 13.Qa4 Ba6 14.Ba6.

8.Nc3 Rb8 A) 9.Bd3 a6 (9...dc4 10.Bc4 c5 11.Rc1 Nb6 12.Be2 cd4 13.Qd4 Qd4 14.Nd4; 9...Nb6 10.cd5 Nbd5 11.0-0 Nc3 12.Bc3 Nd5 13.Bd2 f5 14.Ne5; 9...c5 10.cd5 ed5 11.0-0 c4 12.Bc2 Re8 13.Qe2 b6 14.h3) 10.0-0 dc4 11.Bc4 ab5 12.Bb5 b6 13.a4 Bb7 14.Qe2; B) 9.Qb3 c5 10.cd5 ed5 11.Be2 c4 12.Qb4 Re8 13.0-0 a6 14.h3.

8.Nc3 c5 A) 9.Rc1 cd4 (9...Qa5 10.cd5 ed5 11.Be2 c4 12.0-0 a6 13.a4 Qb4 14.Qd2) 10.Nd4 e5 11.Nf3 e4 12.Nd4 Ne5 13.cd5 Nd5 14.Ne4; B) 9.bc6 bc6 10.Rc1 Re8 11.cd5 ed5 12.Be2 Rb8 13.Qc2 c5 14.0-0; C) 9.Bd3 cd4 (9...dc4 10.Bc4 cd4 11.ed4 Nb6 12.Bd3 Qd6 13.Qb3 Re8 14.0-0) 10.ed4 dc4 11.Bc4 Nb6 12.Bd3 Nbd5 13.0-0 Nc3 14.Bc3; D) 9.Be2 cd4 (9...Nb6 10.dc5 Nc4 11.Bc4 dc4 12.Qa4 Nd5 13.Qc4 Bd7 14.0-0-0) 10.ed4 Nb6 11.cd5 ed5 12.0-0 Nc4 13.Qb3 Nb2 14.Qb2; E) 9.cd5 Nd5 10.Be2 Nc3 11.Bc3 cd4 12.ed4 Nb6 13.0-0 Nd5 14.Rc1.

8.Nc3 Ne4 A) 9.Qc2 Nc3 10.Bc3 Nb6 11.Bb4 Re8 12.c5 Nc4 13.Bc4 dc4 14.Qc4; B) 9.cd5 ed5 (9...Nc3 10.Bc3 ed5 11.Rc1 Re8 12.Bd3 Nf6 13.Bb4 Rb8 14.0-0) 10.Nd5 Ndc5 11.Nb4 Bf5 12.Qc2 a5 13.ba6 Na6 14.Na6; C) 9.Rc1 Ndf6 (9...Re8 10.Be2 Nc3 11.Bc3 Nb6 12.c5 Nc4 13.Nd2 Nd2 14.Qd2; 9...c5 10.Bd3 cd4 11.ed4 Nc3 12.Bc3 dc4 13.Bc4 Nb6 14.Bd3) 10.Bd3 Nc3 11.Bc3 a6 12.ba6 Ra6 13.0-0 Ra2 14.Qb3; D) 9.Ne4 de4 10.Nd2 f5 11.Be2 e5 12.Nb3 ed4 13.Nd4 Nc5 14.0-0.

8.Nc3 Re8 A) 9.Qc2 Rb8 (9...Nb6 10.c5 Nc4 11.Bc4 dc4 12.Qa4 a6 13.Qc4 ab5 14.Nb5; 9...c5 10.bc6 bc6 11.cd5 cd5 12.Bd3 Rb8 13.0-0 Qa5 14.a4; 9...Qe7 10.cd5 Nb6 11.de6 Be6 12.Bd3 Nc4 13.Bc4 Bc4 14.Ne5; 9...c6 10.cd5 Nd5 11.bc6 bc6 12.Be2 Qa5 13.0-0 Ba6 14.Ba6) 10.Bd3 c5 11.0-0 cd4 12.ed4 dc4 13.Bc4 Nb6 14.Bd3; B) 9.Be2 e5 (9...dc4 10.Bc4 Nd5 11.0-0 N7b6 12.Bd3 Nc3 13.Bc3 Nd5 14.Bd2; 9...Nb6 10.c5 Nc4 11.Bc4 dc4 12.0-0 Nd5 13.Qe2 a6 14.Qc4; 9...a6 10.0-0 dc4 11.Bc4 Nb6 12.Bd3 ab5 13.Nb5 Nfd5 14.Qb3; 9...c5 10.bc6 bc6 11.0-0 Ba6 12.Ne5 Ne5 13.de5 Nd7 14.cd5) 10.de5 Ne5 11.Ne5 Re5 12.0-0 Be6 13.Nd5 Nd5 14.Be5; C) 9.cd5 ed5 (9...Nd5 10.Qb3 c5 11.Rc1 Nc3 12.Bc3 cd4 13.Bd4 e5 14.Bb2) 10.Bd3 Ne4 11.Qc2 Nc3 12.Bc3 Nf6 13.Rc1 Qd6 14.Ba5; D) 9.h4 e5 (9...a5 10.Qb3 dc4 11.Bc4 Nb6 12.a4 Nc4 13.Qc4 b6 14.0-0; 9...c5 10.bc6 bc6 11.cd5 cd5 12.Rb1 Ne4 13.Ne4 de4 14.Ng5; 9...c6 10.Be2 cb5 11.cb5 Ne4 12.h5 gh5 13.Rc1 a6 14.Qb3) 10.de5 Ne5 11.Ne5 Re5 12.cd5 Nd5 13.Bc4 Rh5 14.Be2; E) 9.Qb3 c5 10.Be2 cd4 11.ed4 dc4 12.Bc4 Nb6 13.Be2 Nfd5 14.0-0.

8.Nbd2 a6 A) 9.ba6 Ra6 (9...Re8 10.cd5 ed5 11.Qc2 b6 12.Rc1 c5 13.dc5 bc5 14.Qa4; 9...b6 10.cd5 ed5 11.Ba3 Re8 12.Qa4 Ba6 13.Ba6 Nb8 14.Qb3; 9...c5 10.Be2 b6 11.0-0 Ba6 12.h3 Qc7 13.a4 Rfc8 14.Rc1; 9...ba6 10.Bd3 Rb8 11.Rb1 c5 12.0-0 Bb7 13.Qe2 Qc7 14.dc5) 10.cd5 Rb6 11.Nc4 Rb2 12.Nb2 ed5 13.Bd3 c5 14.0-0; B) 9.a4 c5 (9...ab5 10.ab5 Ra1 11.Qa1 Ne4 12.Bd3 Nd2 13.Nd2 dc4 14.Nc4; 9...Re8 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Ne4 13.Ne4 de4 14.Nd2; 9...Ne4 10.ba6 ba6 11.Ba3 c5 12.Bd3 f5 13.0-0 Rb8 14.Qc2; 9...dc4 10.Bc4 ab5 11.ab5 Ra1 12.Qa1 Nb6 13.Bd3 Bd7 14.0-0) 10.bc6 bc6 11.Bd3 Rb8 12.Rb1 Bb7 13.0-0 c5 14.Qc2; C) 9.cd5 ed5 (9...Nd5 10.e4 Ne7 11.ba6 b6 12.Qb3 Nb8 13.Rc1 Na6 14.h4) 10.ba6 ba6 11.Rb1 c5 12.Be2 Qa5 13.0-0 Rb8 14.a4.

8.Nbd2 c5 A) 9.bc6 bc6 10.Bd3 Rb8 11.Qc2 Qc7 12.0-0 Ba6 13.Rab1 c5 14.dc5; B) 9.Be2 cd4 (9...a6 10.ba6 Ra6 11.cd5 Rb6 12.Nc4 Rb2 13.Nb2 ed5 14.0-0; 9...b6 10.0-0 Bb7 11.h3 Qc7 12.Qc2 cd4 13.Bd4 Rfe8 14.Rac1) 10.ed4 a6 11.ba6 Ra6 12.0-0 Rc6 13.Rc1 Re8 14.c5; C) 9.Bd3 cd4 (9...Nh5 10.0-0 cd4 11.ed4 Nf4 12.Qc2 Nb6 13.c5 Na4 14.Ba3) 10.ed4 Nh5 11.0-0 Nf4 12.Qc2 a6 13.a4 Re8 14.Rfe1.

8.Nbd2 c6 A) 9.Bd3 dc4 (9...Qa5 10.0-0 cb5 11.cb5 Nb6 12.a4 Nbd7 13.Qb3 Re8 14.Rfc1; 9...a6 10.bc6 bc6 11.0-0 Rb8 12.Ba3 c5 13.Rb1 Bb7 14.cd5; 9...Qb6 10.Qb3 dc4 11.Bc4 Nd5 12.0-0 Rb8 13.Ba3 Rd8 14.Ne4) 10.Bc4 Nb6 11.bc6 Nc4 12.Nc4 Qd5 13.Qc2 bc6 14.Nce5; B) 9.bc6 bc6 10.Bd3 Rb8 11.Qc2 Qc7 12.0-0 Ba6 13.Rab1 c5 14.dc5; C) 9.Rc1 Ne4 (9...c5 10.cd5 Nd5 11.Ne4 b6 12.Qb3 Qe7 13.Be2 a6 14.0-0; 9...Qa5 10.Bc3 Qa3 11.Bd3 c5 12.0-0 a6 13.ba6 Qa6 14.Qe2; 9...Re8 10.Bd3 a6 11.bc6 bc6 12.0-0 Rb8 13.Qc2 Qc7 14.Ba3; 9...Rb8 10.Ba3 c5 11.dc5 Qa5 12.Qb3 Rd8 13.Bd3 dc4 14.Rc4) 10.cd5 cd5 11.Be2 Qa5 12.0-0 Ndf6 13.Ne4 Ne4 14.Qb3; D) 9.cd5 ed5 10.bc6 bc6 11.Be2 Rb8 12.Qc2 Ne4 13.0-0 c5 14.Rab1; E) 9.Be2 Qb6 (9...cb5 10.cb5 a6 11.ba6 ba6 12.0-0 Qa5 13.Qc2 Bb7 14.Rfc1; 9...a6 10.bc6 bc6 11.0-0 Rb8 12.Qc2 Qe7 13.Rab1 Bb7 14.h3; 9...Qc7 10.0-0 c5 11.Qc2 cd4 12.ed4 b6 13.Rac1 Bb7 14.Qb3; 9...c5 10.0-0 b6 11.cd5 Nd5 12.g3 Bb7 13.e4 N5f6 14.e5) 10.Qc2 dc4 11.bc6 Qc6 12.Qc4 Qc4 13.Nc4 Ne4 14.Nfd2.

8.Nbd2 Ne4 9.Be2 (9.Ne4 de4 10.Nd2 Nf6 11.g4 e5 12.g5 Ng4 13.Ne4 Bf5 14.Bg2) 9...Ndf6 (9...Nd2 10.Qd2 Nb6 11.cd5 ed5 12.Qb4 Be6 13.0-0 Nc4 14.Bc3; 9...a6 10.ba6 ba6 11.0-0 Rb8 12.Rb1 Bb7 13.Qc2 Nd2 14.Nd2; 9...Qe7 10.0-0 Rd8 11.Qc2 Nd2 12.Nd2 Nf6 13.a4 c6 14.bc6; 9...Nb6 10.Ne4 de4 11.Nd2 f5 12.0-0 Qg5 13.a4 Nd7 14.Qb3) 10.0-0 Bd7 11.Ne5 c6 12.cd5 cd5 13.f3 Nd6 14.Ba3.

8.Nbd2 Qe7 A) 9.Qc1 Re8 (9...Qd8 10.Bd3 dc4 11.Qc4 a6 12.0-0 Nb6 13.Qb3 ab5 14.Bb5) 10.Be2 c5 11.bc6 bc6 12.0-0 Ba6 13.Rb1 c5 14.Bc3; B) 9.Qb3 c5 10.bc6 bc6 11.Qa3 c5 12.Bd3 Rb8 13.Rb1 Bb7 14.0-0; C) 9.Qa4 Rd8 (9...Nb6 10.Qb3 dc4 11.Bc4 Nc4 12.Nc4 Rd8 13.0-0 Ne4 14.Qc2; 9...Re8 10.Bd3 Nb6 11.Qb3 Nc4 12.Nc4 dc4 13.Bc4 Ne4 14.Ba3; 9...Ne8 10.Ba3 Qf6 11.Bf8 Bf8 12.Qc2 c6 13.bc6 bc6 14.Rb1) 10.Bd3 Nb6 11.Qa3 Qa3 12.Ba3 a6 13.ba6 dc4 14.Nc4; D) 9.Qc2 c5 (9...dc4 10.Bc4 Nb6 11.a4 Nc4 12.Qc4 Ne8 13.0-0 Nd6 14.Qc2; 9...a6 10.ba6 c5 11.Bd3 cd4 12.ed4 dc4 13.Nc4 b5 14.Nce5; 9...Ne4 10.Bd3 Nd2 11.Nd2 e5 12.0-0 ed4 13.Bd4 Bd4 14.ed4; 9...Rd8 10.Bd3 dc4 11.Nc4 Qb4 12.Ncd2 Nd5 13.0-0 Qa5 14.Ng5) 10.bc6 bc6 11.Bd3 Rb8 12.0-0 Ba6 13.Rfb1 c5 14.Qa4.

8.Nbd2 Re8 A) 9.Bd3 a6 (9...e5 10.de5 Ng4 11.0-0 Nde5 12.Ne5 Ne5 13.Be2 dc4 14.Qc2; 9...dc4 10.Nc4 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 Nc5 14.Bg6) 10.a4 e5 11.de5 Ng4 12.cd5 Nde5 13.Ne5 Ne5 14.Be4; B) 9.cd5 Nd5 (9...ed5 10.Be2 Ne4 11.0-0 Ndf6 12.Rc1 Bg4 13.h3 Bf5 14.Ba3) 10.Qc2 a6 11.ba6 b6 12.e4 Nf4 13.g3 Nh5 14.Qa4; C) 9.Be2 a6 10.a4 Ne4 11.0-0 ab5 12.cb5 b6 13.Qc2 Bb7 14.Ne4; D) 9.Qb3 a6 (9...c5 10.Bd3 cd4 11.ed4 e5 12.Ne5 Ng4 13.0-0 Nge5 14.de5) 10.Be2 ab5 11.cb5 c5 12.0-0 c4 13.Qc2 b6 14.Bc3.

9.a4 Ne4 (9...Bb7 10.Bd3 Ne4 11.cd5 ed5 12.Qc2 Nd2 13.Qd2 Qf6 14.0-0; 9...a6 10.Bd3 dc4 11.Bc4 Nd5 12.0-0 Bb7 13.Qb3 a5 14.Ba3) 10.Be2 Bb7 11.0-0 Nd2 12.Nd2 c5 13.bc6 Bc6 14.cd5.

9.Qb3 Bb7 10.Bd3 a6 11.ba6 Ra6 12.0-0 Ra7 13.a4 Ne4 14.cd5.

9.Qc2 dc4 (9...a6 10.cd5 Nd5 11.e4 N5f6 12.ba6 Ba6 13.Ba6 Ra6 14.0-0; 9...Bb7 10.Be2 a6 11.0-0 dc4 12.a4 c3 13.Bc3 Nd5 14.Bb2) 10.Nc4 (10.Bc4 a6 11.Qa4 Bb7 12.ba6 Ba6 13.Ba6 Nb8 14.0-0) 10...Bb7 (10...a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Bb7 14.Bb2) 11.Be2 (11.Ba3 Re8 12.Nce5 Ne5 13.Ne5 Nd5 14.h4) 11...Nd5 (11...a6 12.ba6 Ra6 13.0-0 Be4 14.Qb3) 12.a4 (12.0-0 a6 13.a4 Qe7 14.Qd2) 12...a5 13.Ba3 (13.0-0 Nb4 14.Qb3) 13...Re8 (13...Nb4 14.Qb2) 14.0-0 Rc8 15.Qd1 (15.Rac1!?+/–) 15...Nc3= 16.Qc2 Ne2 17.Qe2 Qf6 18.e4 Qf4 19.Ncd2 Nf6 20.Rfe1 Red8 21.Ra2 Qg4 22.Bc1 Qh5 23.h3 g5 24.e5 Nd5 25.Ne4 h6 26.Nh2 (26.Rc2 Bf8=) 26...Qg6 (26...Qe2 27.Rae2 Bf8 28.Ra2–/+) 27.Bb2 (27.Rc2 Nf4 28.Bf4 Rd4 29.Nf6 Bf6=) 27...Nf4 (27...Nb4 28.Raa1–/+) 28.Qc2 h5 29.Nf3 g4 30.Nh4 Be4 (30...Qh6!?+=) 31.Re4 Qg5 (31...Qh7!?=) 32.hg4+= hg4 33.g3 Nd5 34.Qd1 (34.Ra1 c5 35.bc6 Qh5+=) 34...f5= 35.ef6 Nf6 36.Re6 Qd5 37.Rf6 Bf6 (37...Qa2? 38.Qg4 c5 39.Nf5+–) 38.Qg4 Bg7?? (38...Qg5 39.Qe6 Kh8 40.Qf5+=) 39.Nf5+/– Rd7 40.Ra1 (better is 40.Ng7!? Kh8 41.Bc1+–) 40...Rf8= 41.Ne3 (worse is 41.Ng7 Rg7 42.Qh3 Rh7+=) 41...Qf7 42.f4 Rd6 43.f5 (43.Rc1 Rf6=) 43...Re8 (better is 43...Qb3 44.Qe2 Re8 45.Qc4 Qc4 46.Nc4 Bd4 47.Bd4 Rd4–+) 44.Re1?? (better is 44.Ra3 Kh7 45.Rd3=) 44...Qb3–+ 45.Bc1 Qc3 (45...Qa4!? 46.f6 Rf6 47.Qd7–+) 46.Kf2–/+ Qd4 47.Qh5 (47.Qd1 Qc3 48.Qe2 Bh6–/+) 47...Rdd8 (better is 47...Re5!?–+) 48.Rh1 Qa4 49.Qh7 Kf8 50.Qg6? Qa2 51.Kf3 Rd6 52.Qg5 Qa4 53.Rh7 Qe4 54.Kf2 Qe7 55.Qg4? Kg8 56.Rh5 Rd4 57.Qf3 Rd3 58.g4 Kf8?? 59.Rh3?? Bd4 60.Rg3?? a4 61.g5 Be3 62.Be3 Qe3! 63.Qe3 Rde3 64.Rg1 R3e5 65.Ra1 Rf5 66.Kg2 Re2 67.Kg3 Re4 0–1. Heyar,Fred (1625) – Schneider,Raymond (1950), Luxembourg op, 1996.

9.Bd3 a6 (9...Bb7 10.0-0 a6 11.a4 ab5 12.ab5 Qe7 13.Qc2 dc4 14.Qc4; 9...dc4 10.Bc4 a6 11.a4 Bb7 12.0-0 ab5 13.ab5 Ra1 14.Qa1; 9...Re8 10.0-0 Bb7 11.a4 a6 12.Qc2 c5 13.bc6 Bc6 14.Rfc1) 10.a4 Bb7 11.0-0 dc4 12.Nc4 ab5 13.ab5 Ra1 14.Qa1.

9.cd5 Nd5 10.e4 N5f6 11.Qc2 a6 12.ba6 Ba6 13.Ba6 Ra6 14.0-0.

9.Be2 a6 (9...Bb7 10.0-0 a6 11.a4 Re8 12.Qc2 c5 13.bc6 Bc6 14.cd5; 9...dc4 10.Bc4 Bb7 11.0-0 a6 12.a4 ab5 13.ab5 Ra1 14.Qa1; 9...Re8 10.0-0 Bb7 11.Qc2 c5 12.bc6 Bc6 13.cd5 Bd5 14.Ba6) 10.a4 Ne4 11.0-0 ab5 12.ab5 Ra1 13.Qa1 Bb7 14.Qa7.

5.b5 e5 6.Nf3 Bd6 7.d4 ed4 8.cd4 =+.

5.b5 Be7 6.Nf3 0-0 7.d4 a6 (7...Nbd7 8.Bd3=+) 8.a4 (8.dc5 Bc5 9.c4 ab5 10.cb5 Ne4=+) 8...ab5 9.Bb5 Nc6 (9...Bd7 10.0-0=+) 10.0-0 Qb6 11.Na3 c4 12.Rb1 Bd7 13.Bc1 Qa5 14.Qe1 Ne4 15.Bb2 h6 16.Nc2=+ Rfd8 17.Nd2 Nd6 18.Ba1 Nb8 19.e4 Nb5 20.ab5 Qa4 21.Ne3 Bb5 22.ed5 ed5 23.Nd5 Rd5 24.Qe7 Qa6 25.Rfe1 Nc6 26.Qe4 Rad8 27.Re3 Ne5 28.Nf3 Nf3 29.Qf3= R5d7 30.Qe2 Bc6= 31.Re8 Re8 32.Qe8 Kh7 33.Qe5 Rd5 34.Qe4 Kg8 35.Qe7 Rg5 36.g3 Qa5 37.Rf1 Qf5 38.Qd8 Kh7 39.Re1 Qf3 40.d5? Bd5–+ 41.Qd5 Rd5 (42.h3 Rd2–+) 0–1. SuperForte5 – REXChess, 1994.

5.Nf3 a6 6.bc5 Bc5 7.d4 Bd6 8.Bd3 0-0 9.Nbd2 Nc6 10.0-0 Bd7 11.e4 e5 12.ed5+/– Nd5 13.de5 Ne5 14.Ne5 Be5 15.Qh5 f5=+ 16.Bc4 Bc6 17.Nf3 Qe8? 18.Qe8+– Rfe8 19.Rad1 Rad8 20.Rfe1 Bf6 21.Re8 Re8 22.Bd5 Bd5 23.Rd5 Re2 24.Rd2 Re4 25.Kf1 g5 26.Rd5 g4 27.Nd2 Ra4 28.a3 f4 29.f3 (29...gf3 30.gf3+–) 1–0. UPS – Naunhofer, mySchach.de, 2004.

5.Nf3 cb4 6.Ne5 =+.

6.Ba3 Ba3 7.Na3 e5 =+.

6.Ba3 Ba3 7.Bb5 Bd7 8.Na3 0-0 =+.

6.c4!? =.

6.d4 cb4–/+ 7.c4? dc4–+ 8.d5? Be7 9.Ng5? 0-0 10.g3?? c3 11.Bg2 cb2 (12.Nd2 ba1Q 13.Qa1 Nd5–+) 0–1. Plath – Fischer,A, corr SOK–89–30, 1989.

6.d4 cb4–/+ 7.Bd3!? –/+.

5.a3 Bc5 6.d4 Bb6 7.c5 Ba5 8.Nc3 b6 9.c6 (9.Nf3!?-/+) 9...Nc6 10.Bb5 Bd7 11.Qa4 0-0?? (better 11...Ne7-+) 12.Bc6+/- Bc6 13.Qc6 Bc3 14.Bc3 Ne4 15.Bb4 Re8 16.f3?? (better 16.Nf3+/-) 16...Ng5?? (better 16...Qh4 17.Kd1 Nf2 18.Ke2 Nh1-/+) 17.f4 (better 17.h4!? e5 18.hg5 ed4 19.Qc2+-) 17...Ne4+/- 18.Rd1?? (better 18.Nf3!?+/-) 18...a5 (better 18...Qh4 19.g3 Ng3-+) 19.Bd2= Qd6 (19...Qh4 20.g3 Ng3 21.Nf3=) 20.Qa4 g6 (20...b5!? 21.Qb3 Reb8=) 21.Nf3+/- c6 22.Qb3 b5 Black intends a4 23.Ng5 Ng5 24.fg5 a4 25.Qc2 (better 25.Qc3!?+-) 25...Qa3+= 26.Qc6 Qb3 27.0-0 Rac8 28.Qa6 (28.Qd7 Rf8+/-) 28...Ra8 29.Qc6 (29.Qb7 Rf8+-) 29...Rec8?? (29...Rac8 30.Qb7 Rf8+/-) 30.Qb6 (30.Qd7 Rf8+-) 30...Qd3 (30...Rf8 31.Qb7+/-) 31.Kh1 (31.Qb7 Rf8+-) 31...Rab8? (31...Rc2 32.Qb7 Rf8 33.Bb4+-) 32.Qa5 (32.Qa7 Rf8+-) 32...Qe4? (32...Rc2 33.Qa7 Rf8 34.Rf2+/-) 33.Rf4 (33.Qa7 Rf8+-) 33...Qd3? (better 33...Qc2 34.Rdf1 Qc7+/-) 34.Rff1?? (better 34.Qa7 Rf8 35.Rf7 Rf7 36.Qb8 Kg7 37.Qe5 Kg8 38.h3+-) 34...Rc2 (34...Qe4 35.Qa7 Rf8+-) 35.Bb4 Qe4 (35...Qe3 36.Qa7 Qg1 37.Kg1 Rf8 38.Bf8 Rc8 39.Qf7 Kh8 40.Bg7) 36.Rfe1?? (better 36.Rd2 Rd2 37.Bd2+/-) 36…Qg2 0-1. alex296 – quez, Rated Classical game, lichess.org, 2013.

5.a3 Bd6 –/+.

5.Qb3 Bd6 6.Nf3 c6 (6...Nbd7 7.Nc3-/+) 7.d4 Nbd7 8.Nc3 0-0 9.a4 Re8 10.a5 dc4 (10...Bc7 11.Qb4-/+) 11.Bc4=+ Nf8 (11...Bc7 12.Qa3=+) 12.0-0 e5?? (better 12...Ng6=+) 13.Bf7+- Kh8 14.Be8 Qe8 15.de5 Be5 16.Ne5 Qe5 17.Ne2 Qg5 (17...Qe7 18.Rad1+-) 18.Ng3 Be6? (18...Rb8+-) 19.Qb7 Re8 20.Qc6 Bd7 21.Bf6 gf6 (21...Bc6?? 22.Bg5 Ne6 23.Rfc1+-) 22.Qd6 h5 (22...Qe5 23.Qe5 Re5 24.Rfb1+-) 23.Qf4 (23.Qd4 Qe5+-) 23...Qg6 (23...Qf4 24.ef4 h4 25.Nh5+-) 24.Qh4 Nh7 (24...Re5 25.Rfb1+-) 25.Qh5 Qg7 (25...Qh5 26.Nh5 Bg4 27.Nf4+-) 26.Nf5 (26.Rab1 Ba4+-) 26...Qg8 (26...Qg5 27.Qg5 Ng5 28.Nd4+-) 27.Nh6 Qg7 28.Nf7 Kg8 29.Nd6 (29.Rfd1 Bc6 30.Nh6 Kh8+-) 29...Re5 30.Qf3 Rg5 (30...Bg4 31.Qc6+-) 31.g3 (31.h4!? Re5+-) 31...Nf8 32.Ne4 (32.Rfc1 Qe7 33.Nc8 Bc8 34.Rc8 Rg7+-) 32...Rf5 33.Qh5 (33.Qh5 Rh5 34.Rfd1-+) 1-0. ClayPigeons (2125) - anymore73 (2055), Rated Classical game, lichess.org, 2021.

5.Bc3 Bc3 6.Nc3 c6 7.Nf3 Nbd7 8.Be2 0-0 9.0-0 Nb6 10.c5 Nbd7 11.d4 Re8 12.Re1 Qc7 13.g3 (13.Qa4!?–/+) 13...e5 14.Qc2 e4 15.Nd2 Nf8 16.f3 ef3 17.Bf3 g6 (better is 17...Ne6!?–/+) 18.e4= de4 (18...Be6 19.a3=) 19.Be4 (19.Nde4 Re6=) 19...Ne4 (19...Be6 20.Rf1 Kg7 21.Qd3–/+) 20.Nce4 Kg7 21.Nd6 Re1 22.Re1 Be6 23.N6c4 (23.Qb2 Kg8+=) 23...Rd8 24.a4 Qd7 (24...Rd4?? 25.Qc3+–) 25.Nf3 (25.Nd6!?+=) 25...Qd5–/+ 26.Ncd2 Bg4 27.Qe4 (27.Qc3 Nd7–/+) 27...Qe4 (27...Bf3!? 28.Nf3 Ne6 29.Qd5 Rd5 30.Kf2 Nd4 31.Nd4 Rd4 32.Rb1–+) 28.Re4–/+ (28.Ne4?? Bf3 29.Nd6 Ne6–+) 28...Bf5 29.Re7 Rd7 30.Rd7 Nd7 31.Kf2 f6 32.Nc4 b6 33.cb6 ab6 34.a5 ba5 35.Na5 Be4 36.Ke3 Bf3 37.Kf3 Nb8 38.Ke4 Kf7 39.d5 cd5 40.Kd5 Nd7 41.Nc4 h5 42.Kd6 Nf8 43.Kd5 g5 44.Ke4 (44.h3 f5–/+) 44...Kg6 45.Ne3 Nd7 46.g4? (better is 46.h4–/+) 46...hg4–+ 47.Ng4? (47.Kd5–+) 47...f5 48.Kf3 fg4 49.Kg4 Nf6 50.Kg3 Kf5 Black prepares the advance g4 51.h3 Nh5 52.Kg2 Kf4 (52...Nf4 53.Kg3 Nh3 54.Kh3 Kf4–+) 53.Kh2 (53.Kf2–+) 53...Kf3 54.h4 (54.Kg1 Ng3 55.h4 g4 56.h5 Ne2 57.Kf1 g3 58.Ke1 g2 59.Kd1 g1Q 60.Kc2 Qc5 61.Kb3 Nd4 62.Ka4 Qc4 63.Ka5 Qb5) 54…g4 0–1. Valpa – Mrchess, playchess.de, 2002.

5.cd5 0-0 6.de6 Be6 7.Nf3 Nc6 8.Be2 Qd7 9.0-0 Be7 10.Nc3 Rad8 11.d4 Bf5 12.Qa4 a6 13.Rac1 Ne4 14.Rfd1 Nc3 15.Rc3 Be4 16.Nd2 Qf5 17.Ne4 Qe4 18.Bf3 Qg6 19.Bc6 bc6 20.Qc6 Bd6 21.h3 h5 22.Ba3 Rfe8 23.Bd6 cd6 24.Qa6 Re6 25.Rc8 Rc8 26.Qc8 Kh7 27.Rc1 Qg5 28.Qc2 Rg6 29.f4 Qg3 30.Qf2 Qh3 31.Rc6 Qe6 32.Qf3 Rg4 33.d5 Qf6 34.Qe4 g6 35.Rc1 Qb2 36.Qc2 Qb6 37.Kf2 Qd8 38.Rh1 Qf6 39.Qe2 Kg7 40.a4 Qf5 41.Qf3 Qc2 42.Qe2 Qa4 43.Qb2 Kh7 44.Qf6 Kg8 45.Rb1 Qc2 46.Ke1 Qb1 47.Ke2 Qc2 48.Kf3 Qg2 Normal 0-1. carlos78 (2255) - Whitemouse (2100), Rated Blitz game, lichess.org, 2015.

5.Nf3 0-0 6.cd5 ed5 7.Be2 c5 8.0-0 Nc6 9.Nc3? d4–+ 10.ed4 cd4 11.Nb5 d3 12.Bf6 de2 13.Qe2 Qf6 14.Nc7 Bg4 15.Na8 Nd4?? 16.Qe5?? Nf3–+ (17.gf3 Qe5–+) 0–1. FR (1660) – Zylla,Johannes (2135), BdF T, 2004.

6.cd5 ed5 7.Bb5 Qd6 8.Bc6 bc6 9.Nf3 =+.

6.cd5 ed5 7.Bb5 Bd6 8.Bc6 bc6 9.Qc6 Bd7 10.Qc2 0-0 11.Nf3 c5 12.0-0 Bg4 13.Ng5 h6 14.Bf6 1-0. carlos78 (2390) - midoal (2150), Rated Blitz game, lichess.org.

6.cd5 ed5 7.Bb5 Bd6 8.Bc6 bc6 9.Qc6 Bd7–/+ 10.Qc2 0-0 11.Nf3 Bg4 12.Nd4 Qd7 13.h3 Bh5 14.0-0 Bg6 15.d3 c5 16.Nf3 Bh5 17.Bf6 Bf3 18.Bg7?? (better is 18.Bb2=) 18...Kg7–+ 19.gf3?? (19.Nd2 Bh5 20.Qc3 Kg8 21.Rfc1–+) 19...Qh3 20.f4 Kh6 (20...Kh6 21.f3 Rg8 22.Kf2 Qg2 23.Ke1 Qc2 24.Rh1 Kg7–+) 0–1. orangutanb4 (1980) – pecky987 (1705), 2012.

6.cd5 ed5 7.Bb5 Bd6 8.Bc6 bc6 9.Bf6!? Qf6 10.Qc6 Kd8 11.Nc3=.

6.cd5 ed5 7.Bb5 Bd7?? 8.Bc6+– Bd2 9.Nd2 (9.Kd2?! Bc6 10.Qd4 Ne4 11.Ke1 Qg5 12.Qe5 Qe5 13.Be5 Rc8+/–) 9...Bc6 10.Qc2 0-0 11.Ngf3 Qd7 (11...Re8 12.Bd4+–) 12.0-0 (12.Bf6 gf6 13.Qc3 Kg7+–) 12...Ne4 13.Ne4 de4 14.Ne5 Qe6 15.Nc6 bc6 16.Qc3 f6 17.Rfc1 Rab8 18.Ba3 Rfd8 19.Qc6?? (19.Qa5 a6+–) 19...Qc6?? (better is 19...Rd1! 20.Rd1 Qc6–+) 20.Rc6+– Rd3 21.Bc5 Rb7 22.Bd4 h6 23.h4 f5 (23...a5+–) 24.Rac1 g5 25.hg5 hg5 26.Rc7 Rc7 27.Rc7 g4 (27...Rd1 28.Kh2 Rd2 29.Ra7 Rf2 30.Kg1+–) 28.Ra7 (worse is 28.Ba7 Rd1 29.Kh2 Rd2+–) 28...Rd1 29.Kh2 Rf1 (29...Rd2 30.Kg3+–) 30.Kg3 Kf8 31.a4 Rd1 32.a5 Ke8 (32...Rd2 33.a6 f4 34.Kf4 Rf2 35.Kg3+–) 33.a6 Kd8 34.Rb7 Kc8 35.Rb6 Rd3 36.a7 Ra3 37.Rb8 Kc7 38.a8R Ra8 39.Ra8 Kb7 40.Ra7 (40.Ra7 Kc8 41.Kf4+–) 1–0. orangutanb4 (2020) – futrzak27 (1655), 2012.

6.cd5 ed5 7.Bb5 Be7 8.Bc6 bc6 9.Qc6 Bd7 10.Qc2 0-0 11.Nf3 Qc8 (11...c5 12.Ng5 Re8 13.0-0–/+) 12.0-0 Rb8 (12...c5 13.d3=+) 13.Be5= Rb7 14.Nd4 c5–/+ 15.Nf3 Bf5 16.Qa4 Nd7 17.Bg3 Bd3 18.Re1 Nb6 19.Qa3 c4 20.Qc1 Nd7 21.Nc3 Bf6 22.Nd5= Qc6 23.Nf6 Qf6 24.Nd4 (24.Qc3 Re8=) ½–½. Schmidt,Gregor – Callam,Hannes, Bingen op, 1996.

6.cd5 Qd5 7.Bb5 a5 8.Bf6? (8.Nf3 Bd7=+) 8...gf6 (better 8...Qg2 9.Bg7 Rg8-+ (9...Qh1?! 10.Bh8 Qg1 11.Ke2-+; 9...Qg7?! 10.Bc6 Kd8 11.Nc3-/+)) 9.Bc6 Qc6 10.Qc6 bc6 11.Nf3 e5 12.0-0 Bf5 (12...e4 13.Nd4 Rg8 14.f3=+) 13.a3 Bd6 14.Nc3 Rb8 15.h3 (15.Rfc1 Ke7-/+) 15...h5 (15...Rg8 16.h4-/+) 16.Nh4 (16.e4!? Bc8 17.Rfc1-/+) 16...Bd3-/+ 17.Rfc1 Kd7 18.e4 (18.Na4 Rb5-/+) 18...Rb2 19.Nf5 Rd2 (better 19...c5-/+) 20.Nd6? (better 20.Rd1 Rd1 21.Rd1-/+) 20...cd6-+ (20...Kd6? 21.Rd1 Rd1 22.Rd1+-) 21.Rd1 Rd1 22.Rd1 Bc4 23.Rd2 (23.Rb1 Kc7-+) 23...Rb8 24.Kh2 (24.Na4 Rb1 25.Kh2 Ke6-+) 24...Ke6 (24...Rb3 25.Na4 Bd3 26.f3 Ra3 27.Nb2-+) 25.g3 (25.Nd1 Rb3 26.a4 Bd3-+) 25...Rb3 26.Na4 (26.Nd1 Bd3 27.f3 Ra3-+) 26...Ra3 27.Nb6 Bb5 (27...Bd3 28.g4 Rb3 29.gh5 Be4 30.Nc4-+) 28.f4 (28.Nc8 Bd3-+) 28...ef4 29.gf4 d5! 30.f5 (30.ed5 cd5 Passed pawn) 30...Kd6 31.Nc8 (31.ed5 c5 32.Nc8 Kd7 33.Nb6 Kd8 34.d6-+) 31...Kc7 32.Ne7 de4 33.Ng8 (33.Rd1 e3 34.Rc1 e2 35.Nd5 Kd6 36.Nf6 Rf3 37.Ne4 Ke5-+) 33...e3 34.Rd1 (34.Rd4 e2 35.Re4 Ra1 36.Nf6 h4 37.Ne8 Kd7 38.Nf6 Kd6-+) 34...Ra2 (better 34...e2 35.Re1 Rf3 36.Nf6-+) 35.Kg3 e2 (35...Rf2 36.Re1 h4 37.Kh4-+) 36.Re1 Rd2 (36...Ra3!? 37.Kg2-+) 37.Nf6 Rd1 38.Kf2 h4 39.Ne8 Kb6 40.Nf6 a4 41.Ne4 a3 42.Nc3 Re1 43.Ke1 Kc5 44.Ne4 (44.Na2 Kc4 45.Nc1-+) 44...Kd4 45.Nd2 Kc3 (45...a2 46.Nb3 Kc3 47.Na1 Kb2 48.Kd2 Ka1 49.Ke1 Kb2 50.Kf2 a1Q 51.Kf3 Qg1 52.Kf4 Qg3 53.Ke4 e1Q 54.Kd4 Qge3) 46.Nb1 Kb2 47.Nd2 a2 (47...a2 48.Nf3 a1Q 49.Kf2 Qa7 50.Kg2 Qc7 51.Kg1 Qg3 52.Kh1 Qf3 53.Kg1 e1Q 54.Kh2 Qfe2) 0-1. alex296 – hobchess, Rated Classical game, lichess.org, 2013.

6.cd5 Nd5 7.Bg7 Rg8 8.Bb2 Qh4 9.Qd1 Ne3 (10.Qe2 Nc2 11.Kd1 Na1–+) 0–1. Sochor,G – Scholz, corr III.ICCF World Cup, 1974.

6.Nf3 Bd7 7.Na3 Qe7 8.Nb5 0-0 9.a3 Bd6 10.Qc2 a6 11.Nd6 cd6 (worse is 11...Qd6 12.Bf6 gf6 13.c5=) 12.Bd3 dc4 13.Qc4 e5 14.Qh4 d5 (better is 14...b5!?–/+) 15.Ne5= h6 16.Nc6 Bc6 17.0-0 Rfe8 18.Qd4 Qd7 19.Rfc1 Rad8 20.f3 Rc8 21.Qf4 Qe7 22.Bf5 Rcd8 23.a4 Qd6 24.Qd6 Rd6 25.a5 g6 26.Bh3 Nh7 27.f4 h5 28.g3 f5 29.Bg2 Nf8 30.Be5 Rdd8 31.d4 Ne6 32.Rc3 Rd7 33.Rac1 Nd8 34.Kf2 Kf7 35.h3 Ke6 36.Bf3 Rh7 37.Rc5 Rg8 38.Rb1 Rd7 39.Rb6 Re8 40.Be2 Kf7 41.g4 hg4 42.hg4 Ree7 43.Rc1 Ke6 44.Rg1 Rh7 45.gf5 gf5 46.Rg6 Ke7 47.Bd3 Rf7 48.Rg5 Ke6 49.Rb1 Rde7 50.Rh1 Re8? (50...Kd7+–) 51.Rh6 Kd7 52.Bf5 Ne6 (52...Re6 53.Bg4 Ke7 54.Rh8+–) 53.Bg4 Bb5 54.Rgg6 Rfe7 1–0. Oprisor,Razvan_Gabriel – Toma,Ra (2050), ch–ROU Men, 2012.

6.cd5 ed5 7.Bb5 Bd6 8.Nf3-/+.

6.cd5 Qd5 7.Nc3 (7.Qd5 ed5 8.Bf6 gf6=+) 7...Qb3 8.ab3 0-0 9.Nf3 e5 (9...Bd7 10.Na2-/+) 10.Bb5 Bg4?? (better 10...Bd7-/+) 11.Bc6+/- bc6 12.Ne5 c5 13.Ng4 Ng4 14.Nd5 (14.Nb5 Rad8 15.Ba3 Bd2 16.Ke2 Rfe8+=) 14...a5 (14...Bd2 15.Ke2 Rfd8 16.Ne7 (worse 16.Kd2 Nf2 17.Ke2 Nh1 18.Ne7 Kf8-/+; 16.Nc7?! Rac8 17.Ra7 Bb4=) 16...Kf8 17.Nc6=) 15.Nc7 (15.h3 Nh6+/-) 15...Rad8+= 16.Bc3 Bc3 17.dc3 Rd3 (17...Rb8 18.Rb1=) 18.Rc1 (18.Nb5 Ra8+/-) 18...Rb8 (18...Rc8 19.Ke2 Nf2 (worse 19...Rc7 20.Kd3 Nf2 21.Kc4+/-) 20.Kf2 Rc7=) 19.Na6 (better 19.Ke2 Rd6 20.Rhd1+=) 19...Rb3?? (better 19...Rc8=+) 20.Nc5+- Rbc3 (20...Nf2 21.Kf2 Rb2 22.Kf3 Rdd2+-) 21.Nd3 Rc1 22.Nc1 h5 23.0-0 a4 (23...Ne5 24.Ne2+-) 24.Na2 (24.Nd3 g5+-) 24...a3 25.Ra1 Ne5 26.Nb4 Nc4 27.Kf1 g5 28.Ke2 f5 (28...Kg7 29.Kd3 Ne5 30.Ke4+-) 29.Kd3 Nb2 (29...Nd6 30.Ra3 h4 31.Ra7+-) 30.Kc2 (better 30.Kd4 Kf7+-) 30...Nc4 31.Kc3 Ne5 (31...Nd6 32.Kd3+-) 32.Ra3 Ng4 33.Ra7 (33.Ra5!? Nh6+-) 33...Nf2 34.Nd5 Ng4 35.Kd3 (35.h3!? Ne5+-) 35...Nh2 36.Nf6 Kf8 37.Nh5 Ng4 38.g3 (better 38.Kd4!? f4 39.ef4 gf4+-) 38...Ne5 39.Kd4 (better 39.Kc3+-) 39...Nc6 40.Kd5 Na7 41.Ke5 Nc6 (41...f4 42.Nf4 Kg7+-) 42.Kf5 Ne7 43.Kg5 Kf7 44.Nf4 Nd5 (44...Nd5 45.Nd5 Ke6 46.Nc7 Ke5+-). ClayPigeons (2175) - worldhenyo (2175), Rated Classical game, lichess.org, 2020.

6.Nf3 dc4 7.Bc4 0-0 (7...Bd6 8.0-0-/+) 8.0-0 (8.Bb5 Bd6-/+) 8...Ba5 (8...Bd6 9.Qc3-/+) 9.d4=+ Bb6 10.Bd3 Qd5 11.Qc2 (11.Nc3!? Qh5 12.Rfc1=+) 11...Nb4-/+ 12.Qe2 Nd3 (12...Na2? 13.Ba3 Re8 14.Ra2+-) 13.Qd3 Qe4 14.Qe2 Nd7 (14...Rd8 15.Nbd2 Qg4 16.Nc4-/+) 15.Nbd2 Qc6 (15...Qc2 16.Ba3 Rd8 17.Rfc1=+) 16.Rfc1= Qd6 (16...Qd5 17.Nc4=) 17.Nc4 Qe7 18.a3 (18.Ba3!? c5 19.Nce5=) 18...c6=+ 19.a4 Nf6?? (better 19...Bc7=) 20.Ba3+/- (20.Nb6?! ab6 21.Ba3 c5+=) 20...Qd7 21.Bf8 Kf8 22.Nb6 ab6 23.Ne5 Qd8 24.Qb2 Nd7 25.Nc4 b5? (better 25...Ra6+-) 26.ab5 Ra1 27.Ra1 (27.Qa1 Kg8+-) 27...cb5 28.Qb5 Qc7 29.Qb4 Kg8 30.h3 g6 (30...Qc6 31.Ra8 g6 32.Qe7 Qc4 33.Qd7+-) 31.Rb1 (31.Ra8 b5 32.Qb5 Kg7+-) 31...b6 32.Nb6 Nb6 33.Qb6 Qb6 34.Rb6 Bd7 35.Rb8 Kg7 36.f3 Bc6 37.Kf2 Kf6 (37...h5 38.h4+-) 38.e4 h5 (38...Kg7 39.Rb6 Bd7 40.g4+-) 39.Ke3 (39.d5 Bd7+-) 39...e5 (39...Ke7+-) 40.d5 (40.d5 Bd7 41.f4 ef4 42.Kf4 g5 43.Ke3+-) 1-0. ClayPigeons (2125) - L_D_S (1965), Rated Classical game, lichess.org, 2019.

6.Nf3 dc4 7.Bc4 0-0 8.d4 c6 (8...a6 9.Bd3-/+) 9.0-0=+ Nd5 10.Nbd2 Nb6 (10...a5 11.Ba3=+) 11.Bd3= N8d7 12.a4 c5 (12...Nd5 13.Ba3=+) 13.a5 Nd5 14.Qc2 (14.Rfc1 Rb8=) 14...cd4 15.Bh7 Kh8 16.Nd4 f5?? (16...Nb4 17.Qc3 Kh7 18.Nc2=) 17.Bg6 (better 17.Ne6 Qe8 18.Bf5+-) 17...Rf6+= 18.Bh5 Rh6 19.Bf3 f4? (19...Nb4 20.Qb3 Ne5 21.Rfd1+=) 20.e4 (20.Ne6 Re6 21.Bd5 Rh6+-) 20...N5f6? (20...Nb4 21.Qc3 Qf8+/-) 21.e5?? (21.Ne6 Qg8 22.Nc7 Rb8+-) 21...Nd5?? (better 21...Ne5 22.Rfd1 Nf3 23.N4f3 Nd5=) 22.Ne6!+- Re6 23.Qf5?? (better 23.Bd5!? Ra6 24.Nc4+-) 23...Ne5?? (better 23...Nc5-+) 24.Be5+/- Rf6? (better 24...Kg8+/-) 25.Qh5+- Kg8 26.Bf6 Bf6?? (26...Nf6 27.Qe5 Qd6 28.Qd6 Bd6+-) 27.Bd5 Kf8 28.Qf7 1-0. ClayPigeons (2040) - DeMarco1990 (2030), Rated Classical game, lichess.org, 2020.

6.Nf3 dc4 7.Bc4 Nc6 8.Bb5 Bd7 9.d4 a6 10.Be2 b5 11.Nc3 Na5 12.Qc2 Rc8 (12...0-0 13.Ne5=+) 13.a4 c5 14.ab5 ab5 (14...cd4 15.Nd4 e5 16.Nb3=) 15.Bb5= Bb5 16.Nb5 cd4 17.Qa4 0-0 18.Bd4 (18.0-0 Nc6 19.Nbd4 Nd4 20.Bd4 Qd5=) 18...Nc4 (18...Rc4 19.Qa2 Bb4 20.Ke2=+) 19.0-0= Nd5 (19...Qd5 20.Rfd1 Qe4 21.Na7=) 20.Rfd1+= Bf6 21.Rac1 (better 21.Na7!? Rc7 22.Nc6+=) 21...Bd4=+ 22.Rd4 (22.Nbd4? Nb2 23.Qb3 Nd1 24.Rc8 Qc8 25.Qd1 Qc3-+) 22...Nd6 (better 22...Ne5! 23.Rc8 Nf3 24.gf3 Qc8=+) 23.Rc8+= Nc8 24.e4 Ncb6? (24...Ndb6 25.Rd8 Na4 26.Rd4+=) 25.Qd1 (25.Qb3 Qf6 26.ed5 Nd5+-) 25...Qc8? (better 25...Qe8 26.ed5 Qb5 27.de6 fe6+/-) 26.ed5+- Nd5 27.Nd6 Qc6 28.Ne4 Nc3?? (28...Rb8+-) 29.Nc3 (better 29.Qc2+-) 29…Qc3. ClayPigeons (2050) - Pumpkinst (2035), Rated Classical game, lichess.org, 2020.

6.Nf3 c6 7.d4 dc4 8.Bc4 Nbd7 9.a3 (9.0-0 Nb6=+) 9...0-0 10.Nc3 Nd5 (10...b5 11.Bd3-/+) 11.0-0=+ Nc3 12.Bc3 Nf6 13.Rfd1 (13.Bb4 Bb4 14.ab4 Qd6=) 13...Ne4 (13...Nd5 14.Bd2=+) 14.Bb2 (14.Bb4 Nd6=) 14...Bf6 (14...Qa5 15.Qc2 Ng5 16.Nd2=) 15.Bd3= Nd6 16.Rac1 Bd7 17.Ne5 b6 (17...Be7!?=) 18.Nc6 (18.Qc2 h6+/-) 18...Bc6 19.Rc6 Qd7 20.Rcc1 (20.Qc2 Rfc8 21.Bh7 Kh8+/-) 20...Rac8 21.e4 Ne8 (21...Rc1 22.Rc1 (worse 22.Bc1 Bd4 23.Bc2 e5-/+) 22...Bg5 23.Rd1+=) 22.Rc8+/- Qc8 23.Rc1 Qd8 24.e5 Be7 25.Qc2 (25.Be4 Bg5 26.Rc6 h6+/-) 25...g6 (25...Bg5 26.Rd1 h6 27.Qa4+/-) 26.Qc8 Ng7 (26...Qd5 27.Bc4 Qa5 28.Qa6+/-) 27.Qc7 (27.Qb7 Bg5 28.Rc7 Bf4+-) 27...Nf5? (better 27...Bg5!? 28.Qd8 Rd8+/-) 28.Bf5+- ef5 (28...gf5 29.Qa7 Bg5 30.Rc6+-) 29.h3 (29.Qa7!? Re8+-) 29...Bg5 30.Rc2 (30.Qd8 Bd8 31.d5 Re8+-) 30...Qd5+/- 31.Qa7 Qb3 (31...Qe4 32.Qc7+/-) 32.Qc7+- Bd8? (32...Qd3 33.Qc4 Qd1 34.Kh2+-) 33.Qc3 (33.Qc4 Qc4 34.Rc4 Be7+-) 33...Qd5 (33...Qa2 34.Kh2+-) 34.Qc4 Qe4 35.Qe2 (35.d5 Qe1 36.Kh2 Bg5+-) 35...Qb7 (better 35...Qd5+-) 36.Qc4 b5?? (36...Qe4 37.d5 Qe1 38.Kh2 Bg5+-) 37.Qc6+- Qb8 (37...Qa7 38.Qb5 Be7 39.a4+-) 38.d5 White plans e6 38...Ba5 (38...b4 39.e6 Qa7 40.ab4 fe6 41.Re2+- (worse 41.de6 Bg5+-)) 39.e6 fe6 (39...Qe8 40.Qd6 Qd8 41.ef7 Rf7 42.Qe5+-) 40.de6 (40.Qe6 Rf7 41.Rc8 Qc8 42.Qc8 Bd8 43.Qd8 Rf8 44.Qe7 Rf7 45.Qe8 Rf8 46.Qe5 Rf6 47.Qf6 b4 48.Qg7) 40...Qe8?? (40...Rd8 41.Qf3 Kf8+-) 41.Qd5 Qe7 42.Qe5 Rf6 (42...Rf6 43.Qf6 Qf6 44.Bf6 Bc3 45.Rc3 h6 46.Rc8 Kh7 47.Rh8; 42...Qf6 43.Qf6 Rf6 44.Bf6 Bc3 45.Rc3 h6 46.Rc8 Kh7 47.Rh8). ClayPigeons (2155) - Miloff (2070), Rated Classical game, lichess.org, 2019.

6.Qa4 Nc6 7.Bb5 Qd6 8.Nf3 Bd7 9.a3 Bc5 10.Nc3 a6 11.0-0 0-0 12.Bc6 Bc6 13.Qc2 Ne4 14.Rfc1 Bb6 15.Ne2 Bd7 16.d3 Nf6 17.a4 a5 18.Ned4 c5 19.Nb5 Bb5 20.ab5 d4 21.ed4 cd4 22.h3 Rad8 23.Ba3 Qf4 24.Bf8 Kf8 25.Qd2 Qf5 26.Rc4 Qb5 27.Qc2 Qd7 28.Rb1 Ba7 29.Rc7 Qd6 30.Rbb7 Bc5 31.Qc5 Kg8 32.Qd6 Rd6 33.Nd4 Normal 1-0. carlos78 (2210) - Pilligrim (2200), Rated Blitz game, lichess.org, 2015.

6.Qa4 Nc6 7.Bb5 Bd6 8.Bc6 bc6 9.Qc6 Bd7 10.Qc2 0-0 11.Nf3 c5 12.0-0 Ne4 (12...Rb8 13.Be5 Qe7 14.Bd6 Qd6 15.Nc3-/+) 13.d3=+ Nf6 (13...Ng5 14.Nbd2=+) 14.Nbd2 Bf5 15.Qc3 (15.e4 de4 16.Ne4 Nd5=) 15...Rc8 (15...Re8 16.Rfe1 Rb8 17.e4 de4 18.de4=) 16.h3 (better 16.e4!? de4 17.de4+=) 16...Bg6 17.Nh4 d4 18.ed4? (better 18.Qc4!? Rb8 19.Ba3=+) 18...Nd5-+ 19.Qb3? (better 19.Qc4 Nb6 20.Qc3 Qh4 21.dc5-+) 19...Rb8 (19...Qh4?! 20.Qd5 Qf4 21.Nf3=) 20.Qc4 Nb6 21.Qc3 (21.Qc2 Qh4 22.dc5-+) 21...Na4 (21...Qh4 22.dc5 Qh6 A) worse 23.cd6 Na4 24.Qd4 Nb2-/+ (worse 24...Rb2 25.Nf3 Bf5 26.Qa4+=); B) 23.cb6 ab6 24.Ne4+=) 22.Ng6 (22.Qc2 Rb2 23.Qa4 Qh4 24.Nc4-+) 22...Nc3 23.Bc3 hg6 24.dc5 Bc5 25.Nf3 (25.Nb3 Qd5-+) 25...Qd3 26.Be5 Rbd8 27.Bc7 Rd7 (better 27...Rd5 28.Bg3-+) 28.Ne5 Qd5 (28...Qf1! 29.Kf1 Rc7 30.Rd1-+) 29.Nd7 Qd7 30.Be5 (30.Bg3 Rd8-+) 30...Re8 31.Bc3 (31.Bg3 Re2-+) 31...f6 (better 31...Re2!? 32.Rae1 Ra2 33.Ra1-+) 32.Rad1 Qa4 33.Rd5 (33.Rd2-+) 33...Qc4 34.Rd7 (34.Rc5 Qc5 35.Bb2 Re2-+) 34...Qc3 35.Rc7 Bf2! (35...Bf2 36.Rf2 Qc7 37.Rf3 Qb6 38.Kh2 Re1 39.Kg3 Qd6 40.Kf2 Qd2 41.Kg3 Re2 42.Rf6 Qg5 43.Kf3 Qg2 44.Kf4 Re4) 0-1. carlos78 (2200) - BLC2316 (2210), Rated Blitz game, lichess.org, 2015.

6.Qa4 Nc6 7.Bb5 Bd6 8.Bc6 bc6 9.Qc6 Bd7 10.Qc2 0-0 11.Nf3 Re8 12.0-0 Rb8 13.d3 c5 14.Nbd2 Bb5 (14...Bf5 15.e4 de4 16.Bf6 Qf6 17.de4=+) 15.Rab1 Ne4?? (better 15...Qe7=+) 16.de4+- (worse 16.Ne4 de4 17.de4 Bf1 18.Rf1 Qd7-/+) 16...Bf1 17.Kf1 (17.Nf1?! Re4 18.Rd1 Rc4+/-) 17...de4 18.Ne4 Bf8? (better 18...Qe7 19.Neg5 g6+/-) 19.Nc5?? (19.Neg5!? g6 20.Qc3 Rb2 21.Qb2 Be7+-) 19...Qd5?? (better 19...Bc5 20.Kg1 Qd5-/+) 20.Nb3+- a5 21.Rd1 (better 21.Kg1+-) 21...Qb5+/- 22.Kg1 (22.Qe2!? a4 23.Qb5 Rb5 24.Nfd4+=) 22...a4+= 23.Nfd4 ab3 24.Nb3 (24.Qb3?? Qh5 25.Qd3 Rb2-+; 24.ab3?! Qh5=) 24...Rec8 25.Qe4?? (better 25.Qd2=) 25...Qe2-+ 26.Qb1 (26.Rb1 Rc2 27.Be5 Qf2 28.Kh1-+) 26...Rc2 27.Ba1 (27.Rf1 Rb2 28.Qf5-+) 27…Qf2 (27...Qf2 28.Kh1 Qg2) 0-1. fishissushi (1780) - Wesleysnipe5, Rated Classical game, lichess.org, 2019.

6.Qa4 Nc6 7.Bb5 Bd6 8.Bc6 bc6 9.Qc6 Bd7 10.Qc2 c6 11.Nf3 0-0 12.0-0 g6 (12...Qe7 13.Rc1=+) 13.d3 (13.Be5 Qe7 14.Bd6 Qd6+=) 13...Rb8 14.Qc3 d4 (14...Be7!?=) 15.Qd4+/- Be7 16.Nbd2 Rb4 (16...Bf5 17.e4 Be6 18.Qc3+/-) 17.Qc3+- Rb2? (better 17...c5+-) 18.Qb2 Nd5 19.Rfc1 Bf6 (19...Nb4 20.Ne5 Qc7 21.a3+- (21.Nd7?! Qd7 22.Qc3 Nd3 23.Qc6 Qf5+-)) 20.d4 Qe7 21.Qc2 (21.Qb7 Be6 22.Qc6 Rc8+-) 21...Rb8 22.Ne4 (22.Rab1 Rb6+-) 22...Bg7 23.Nc5 Bf5 24.Qe2 Nf6 (24...Bg4 25.Rc2+-) 25.Ne5 Ne4 (25...Rb6 26.a4 Qe8 27.Nc4+-) 26.Ne4 (better 26.Nc6 Qd6 27.Nb8 Qb8 28.Rab1+-) 26...Be4 27.f3 Bd5 28.e4 Be5 29.de5 Be6 (29...Qe5 30.Qd1 Be6 31.Rc6+-) 30.Qc2 Bd7 31.Qc5 Qe6 (31...Qc5 32.Rc5 Kf8 33.Rd1+-) 32.Rd1 (32.Qa7 Re8+-) 32...Re8 (32...Rb7 33.Rab1 Rb1 34.Rb1+-) 33.Qd6 (better 33.Qa7!? Bc8+-) 33...Qe5 (33...Bc8+-) 34.Qe5 (34.Qe5 Re5 35.Rd7+-) 1-0. fishissushi (1890) - zeyrion (2110), Rated Classical game, lichess.org, 2020.

6.Qf3 Nbd7 7.Nc3 c6 8.Rb1-+.

6.Qf3 Be7 7.Nc3 (7.Bf6 Bf6 8.Nc3 c6-/+) 7...c6 8.Nge2 Bf5?? (better 8...0-0-/+) 9.Qf5+- 0-0 10.Ng3 Nbd7 11.Bd3 g6 12.Qf3 (12.Qf4 Nc5 13.Bc2 Ne6+-) 12...Ne5 13.Qe2 Nfd7 14.0-0 f5 15.Bc2 Nc4 16.Rab1 b6 (16...Bf6 17.Rfc1+-) 17.Bc1 (17.Bb3 Nb2 18.Nd5 cd5 19.Bd5 Kg7 20.Ba8 Qa8 21.Rb2 Rc8+-) 17...Nc5 18.d3 Nd6 19.Na4 (19.Bb2 Bf6+-) 19...Nd7 20.Bb2 Re8 21.Qd2 b5 (21...Bf6 22.Rfc1+-) 22.Nc3 (22.Qc3!? Nf6 23.Nc5 a5+-) 22...a5 23.Nce2 Qc7 (23...Bf6 24.Rfc1+-) 24.Nd4 (24.Rfc1 Nb7+-) 24...Bf8 (24...Bf6 25.Rfc1 c5 26.Bd1+-) 25.a3 (25.Qc3 Ne5 26.Bb3 Rac8+-) 25...c5 Black plans b4 26.Nf3 b4 27.Bb3 Nb6 (27...Qb7 28.ab4 ab4 29.Rfc1+-) 28.Rfc1 c4 (28...ba3 29.Ba3 Nb7 30.Ba2+-) 29.dc4 (29.ab4 ab4 30.Bd4 Ndc8+-) 29...dc4 (29...Ndc4 30.Bc4 dc4 31.ab4 ab4 32.Qd4+-) 30.Qd4 (better 30.ab4 a4 31.Ba2+-) 30...Bg7 31.Qg7 (31.Qf4 Bb2 32.Rb2 Qe7 33.Rc4 Ndc4 34.Bc4 Kh8 35.ab4 Qg7+-) 31...Qg7+/- 32.Bg7 Kg7 33.Bc2 b3 34.Bd1 (34.Bb3 cb3 35.Rb3 Nbc4+/-) 34...a4+= 35.Be2 (35.Nd4 Kf6+=) 35...Rac8 (35...Nb5 36.Bc4 Na3 37.Bb3 Nb1 38.Ba2+=) 36.Rd1 (better 36.Nd4+=) 36...Nb5-/+ 37.h3? (better 37.Ra1-/+) 37...Nc3-+ 38.Rd6? (38.Nd4-+) 38...Nb1 39.Rb6 c3 40.Rb7 Kf6 (better 40...Kg8 41.Bd3 c2-+) 41.Nd4 (41.Rb6 Re6 42.Re6 Ke6 43.Nd4 Kf6 44.Bd3 Na3 45.Nf1-+) 41...c2 42.Rb6 Kf7 (42...Kg7 43.Rb7 Kh8 44.Bb5 c1Q 45.Kh2-+) 43.Rb7 Re7 (43...Re7 44.Nb3 ab3 45.Rb3 c1Q 46.Kh2 Na3-+) 0-1. Fuirio (1640) - anatoli (2045), Rated Classical game, lichess.org, 2013.

6.Nf3 Bd6 7.Bb5 c6 8.Bd3 0-0 9.0-0 h6 10.Be2 Bg4 11.h3 Bf3 12.Bf3 Nbd7 13.d3 Ne5 14.Nd2 (14.Be2 Qe7-/+) 14...Nf3 (better 14...Nd3!? 15.Bc3 Re8-+) 15.Nf3 Re8 16.Qd2 Rc8 17.a3 Qb6 (better 17...b6!?-/+) 18.Bf6= gf6 19.Rab1 Qc7 20.Rfc1 (20.Qb2 b5=) 20...Qe7 (20...Ba3 21.Rc2 Bd6 22.Qc3=+) 21.Rb3 b5 (21...Ba3 22.Ra1 Bc5 23.Nh4=+) 22.d4 (22.Qa5 f5=) 22...Qe6 (22...Ba3!? 23.Rc2 Bd6-/+) 23.Ne1 f5 24.Nd3 Qg6 25.Nc5 Bb8 26.Ra1 f4 27.a4 (27.ef4 Qf5=) 27...fe3=+ 28.fe3 Qd6 29.ab5 (29.Qf2 Qh2 30.Kf1 Bg3=+) 29...Qh2 30.Kf2 Qg3 (30...Bg3 31.Kf3 Bh4-/+) 31.Ke2?? (better 31.Kf1=) 31...Qg2-+ 32.Kd3 Qg6 33.Ke2 Qg2 (better 33...cb5!? 34.Kd1 Bd6-+) 34.Kd3-/+ Qg6 35.Kc3?? (35.Ke2 cb5 36.Ra5-+) 35...Qg3 (35...cb5 36.Rb5 Qg3 37.Kd3-+) 36.Kc2 (better 36.Kb2 cb5 37.e4-+) 36...Bf4?? (36...cb5!? 37.Qe1 Qg2 38.Qd2-+) 37.Re1?? (better 37.ef4 Qg6 38.Kb2 cb5 39.Ra7+-) 37...Bg5 38.bc6 Rb8 (38...Rc6 39.Qc1-+) 39.c7 (39.Rb7!?=) 39...Rbc8 (39...Rb3 40.Nb3 Qc7 41.Nc5-+) 40.Rb7 (better 40.Na6=+) 40...Qc7?? (better 40...Qh3 41.Kd3 Qf5 42.Kc3 Qf3-+) 41.Rc7+- Rc7 42.Kd3 (better 42.Qg2 Kh7+-) 42...Rec8 (42...Rce7 43.Qg2 Re3 44.Re3 Re3 45.Kc2+-) 43.Qb4 (43.Qg2 Kf8+-) 43...a5 (43...Be7+-) 44.Qa5 Rc5 (44...Re7 45.e4+-) 45.Qc5 (better 45.dc5 Kg7 46.Qa1 Kh7 47.Qa7+-) 45...Rc5 46.dc5 f6 (46...Kf8+-) 47.Kd4 (47.Kd4 f5 48.Rf1+-) 1-0. fishissushi (1920) - Euge_chess (1935), Rated Classical game, lichess.org, 2020.

6.Nf3 Be7 7.Be2 c6 8.0-0 0-0 9.Qb3 Bg4 (9...Nbd7 10.d4-/+) 10.d3 (better 10.Qb7!? Qb6 11.Qa8=) 10...Qb6 11.h3 Qb3 12.ab3 Bf3 13.Bf3 Nbd7 14.Nd2 Rfe8 15.Rfc1 Bb4 16.Bc3 Bc3 17.Rc3 a5 18.Ra4 (18.d4 Ra7-/+) 18...b5 19.Ra1 Ne5 (19...c5 20.g4 h6 21.h4-/+) 20.Rc2 (20.d4 Nf3 21.Nf3 a4 22.Rc6 ab3=) 20...Nf3 (20...Nd3 21.Rc6 Ne4 22.Be4 de4=+ (22...Re4? 23.Ne4 de4 24.Ra5+-)) 21.Nf3= Rec8 22.Rac1 (better 22.Rca2!?=) 22...a4-/+ 23.ba4 ba4 24.Rc6 Rc6 25.Rc6 a3 26.Rc1 a2 27.Ra1 Nd7 28.Kh2? (better 28.d4!?-/+) 28...Nc5-+ 29.Nd2 (29.Nd4 Kf8-+) 29...Nd3 30.Nb3 (30.Kg3 d4! 31.Nb3 de3 32.fe3 Kf8-+) 30...Nf2 (30...Kf8!? 31.Kg3 Rb8 32.Ra2 Rb3 33.h4-+) 31.Nc1 Nd1 32.Ra2 Ra2 33.Na2 Ne3 34.Nc1 (34.Nb4 d4-+) 34...d4 35.Nd3 (35.Kg3 f5-+) 35...f5 36.Kg3 g6 (36...Kf7 37.Kf3-+) 37.Kf3 Nd5 (37...Kf7 38.Nc5-+) 38.g3 (38.Nc5 Kf7-+) 38...Kf7 39.h4 Ke6 40.Nf4 (40.Nc5 Kd6 41.Nd3-+) 40...Nf4 41.gf4 (41.Kf2-+) 41...Kd5 42.Ke2 Kc4 43.Kd2 d3 44.Kd1 Kd4 45.Kd2 Ke4 46.Ke1 Kf4 47.Kd2 Ke4 48.Ke1 f4 49.Kd2 f3 50.Ke1 d2! 51.Kf2 (51.Kd2 h5 Combination) 51...d1Q 52.h5 Qe2 53.Kg3 Qg2 54.Kh4 Qh2 (54...g5) 55.Kg4 Qf4 (55...g5 56.Kg5 Qf4) 56.Kh3 f2 57.hg6 f1Q 0-1. fishissushi (1950) - Masrur_Number_One (1980), Rated Classical game, lichess.org, 2020.

7.a3 Bd6 8.Bb5 c6 9.Ba4 Bg4 10.h3 Bh5 11.0-0 Nbd7 12.d3 Ne5! 13.Nbd2 (13.Be5 Be5 Combination; 13.Ne5 Bd1 Pinning (13...Bd1 Deflection)) 13...Nd3-+ 14.Bc3 (14.Bd4 c5 15.Qb3 cd4 16.Qd3 de3 17.Qe3 Qa5-+) 14...Ne4 15.Ne4 de4 16.g4 (16.Bc2-+) 16...ef3 17.Qf3 Bg6 18.h4 (18.Rfd1 Qe7-+) 18...Qh4 19.Rad1 (19.Qg2-+) 19…Qh2 0-1. anais - Tree2011 (1765), Rated Classical game, lichess.org, 2013.

7.Bc3 Bc3 8.Nc3 c6 9.d4 Bg4 10.Be2 Nbd7 11.0-0 Re8 12.Qc2 Nf8 13.h3 Be6 14.Rab1 g6?? 15.Rb7+/– Bf5 16.Qb3 Ne4 17.Bd3 Nd2 18.Nd2 Bd3 19.Rd1 Bf5 20.Nf3 Rb8 21.Ne5+– a5 22.Nf7 Rb7 23.Qb7 Qe7? 24.Nh6 Kg7 25.Nf5 gf5 26.Qc6 Qe6 27.Qc7 Re7 28.Qa5 Rd7 29.Rb1 Qg6 30.Nd5 f4 31.Nf4 Qb1+= 32.Kh2 Qb8 33.g3 Qd6 34.Qg5 Ng6 35.Nh5 Kf7 36.Qf5 Ke7 37.a4 Qe6 38.Qc5 Kf7 39.a5 Qd5= 40.Qb6?? Qd6?? 41.Qb3 Qd5 42.Qa4 Re7 43.a6 Qh5?? 44.a7+– Ra7 45.Qa7 Ne7 46.Qc7 Qd5 47.Qf4 Ke8 48.h4 Ng6+/– 49.Qb8 Kf7 50.Qc7 Kf6 51.Qh7+/– Qf5 52.Kg1 Qb1= 53.Kh2 Qb2?? 54.Kg2+– Qc2 55.Qh6 Qe4 56.Kg1 Qb1 57.Kh2 Qf5 58.Kg2 ½–½. coloplayah (2150) – macedon (1985), net–chess.com, 2006.

7.Bc3 Bd6 8.Be2 –/+.

7.Bd3 Nc6 8.h4 Bg4 9.Bf6? Qf6 10.Bh7 Kh7 11.Ng5 Kg8 12.Qg4 Qa1 13.0-0 Qb1 14.Rb1+– Bd2 15.Qh5 Rfb8 16.Qf7 Kh8 17.Qh5 Kg8 18.Qh7 Kf8 19.Qh8 Ke7 20.Qg7 Kd6 21.Qf6 Kc5 22.Qf5 Nb4 23.Ne4 Kb5 24.Nd2 c5 25.a3 Rd8 26.ab4 cb4 27.Nb3 a5 28.Qd3 Kb6 29.Nd4 Ka7 30.Ne6 Rd7 31.Qd4 b6 32.Rc1 Rb8 33.Rc7 Rb7 34.Rb7 Kb7 35.Nf8 Rd8 36.Qg7 Kc6 37.Ne6 Rd7 38.Qf8 Kb5 39.Nd4 Kc4 40.Nc2 b5 41.Qf4 Kc3 42.Ne1 Rb7 43.Qe5 Kc4 44.Qa1 a4 45.Qc1 Kb3 46.Nd3 a3 47.Qb1 Kc3+– 48.Ne5 b3 49.Qd3 Kb2+– 50.Qd2 Kb1 51.Qd1 Kb2 52.Nd3 Kc3 53.Ne5 Kb2 54.Qd2 Kb1 55.Qd1 Kb2= ½–½. Nautiluschess – rusalka, ICS blitz, 2001.

7.Nd4 c5 8.Nf3 Be6 9.a3 Ba5 10.Be2 Bc7 11.0-0 Nc6 Black plans d4 12.d3 (12.Qc2 c4-/+) 12...d4-+ 13.ed4 Nd4 14.Nd4 cd4 15.Qa4 Bb6 16.Nd2 Bd5 (16...Nd5 17.Rfe1-/+) 17.Rfc1 (17.Bf3 Qe8 18.Qb4 Qe5=+) 17...Nd7 (17...Bc6 18.Qb3-/+) 18.Rc2 (18.Bd4 Re8 19.Bg4 Ne5 20.Be5 Re5=+) 18...Nc5 (18...Ne5 19.Qb5-/+) 19.Qb4? (better 19.Qd4 Ne6 20.Qg4=) 19...Qg5-+ 20.Bf3 Nd3 21.Qb5 Nf4 (21...Nb2 22.Bd5 Qe7 23.Rb2+- (23.Qb2?! d3 24.Rcc1 Rad8+=)) 22.Bd5 Qd5 23.Qd5 Nd5 24.Nf3 Rac8 25.Rc8 Rc8 26.Nd4? (26.Bd4 f6-/+) 26...Bd4?? (better 26...Nf4 27.Nf5 Rc2 28.Bg7 Rf2-+) 27.Bd4-/+ Nb6 (better 27...a5!?-/+) 28.Bb6= ab6 29.f3 f6 30.Kf2 (30.Rb1 Rc6=) 30...Kf7 (30...Ra8!?-/+) 31.Rb1= Rc6 32.Ke3 (32.h4 h5=) 32...Ke6 (32...Rc3 33.Ke4-/+) 33.f4 (33.a4 f5=) 33...Rc3 (33...Kf5 34.Rb3=+) 34.Kf2 Ra3 35.Rb6 Kf5 36.g3 (36.Rb7 Kf4 37.Rg7 Ra2 38.Kf1 h5=) 36...g5 37.Rb5 Kg6 38.fg5 fg5 39.Rb6 Kg7 (39...Kf5 40.Rb7 Ra2 41.Kg1=) 40.Rb7= Kg6 41.Rb6 (41.Rb6 Kf5 42.Rh6=). fishissushi (1865) - Maugdag (2020), Rated Classical game, lichess.org, 2019.

7.Be2 Re8 –/+.

6.Nc3 Qa5 7.a3 Be7 8.d4–/+.

6.Nc3 Bc3 7.Bc3 b5 (7...e5 8.f4 Nc6 9.fe5–/+) 8.Nh3 (8.Qf3 Qf3 9.Nf3 a6=) 8...Ba6 (better is 8...e5!? 9.Ng1 Nc6–/+) 9.Nf4= b4?? (better is 9...Qd6=) 10.Nd5+– Nd5 11.Bg7 Rg8 12.Be5 Bf1 13.Rf1 Rg2 14.Qh5 Nd7 15.Qh7 0-0-0 16.Qf7 Ne5 17.Qe6 Nd7 18.Qd5 Rh2. abhijit (1780) – ppopp (1810), net–chess.com, 2002.

6.Nc3 Qd8 7.Qa4 Nc6 8.Nf3 Be7 9.Nd4 Bd7–/+ 10.Nc6 Bc6 (10...bc6?! 11.Rb1=) 11.Bb5 Qd7 (11...Bd7!?–/+) 12.Bc6=+ bc6 13.0-0 0-0 14.Rfd1 Nd5 15.Ne4 Nb6 16.Qc2 Rfd8 17.Qc3 e5 (better 17...f6=+) 18.Qe5+– f6 19.Qg3 Rf8 (19...Qe6 20.d3+=) 20.d4 (20.d3 Na4 21.Rab1 Nb2 22.Rb2 Rab8 23.Rb8 Rb8+=) 20...Qe6 21.Qf3 Nd5 22.Nc5 Bc5 23.dc5 Nb4 24.Bc3 (24.a3 Nd5+–) 24...Na6 (24...Na2 25.Ba5 Rfb8 26.Bc7+–) 25.Bd4 Rab8 26.Qe2 Rb5 (26...Nb4 27.a3 Nd5 28.Qa6+–) 27.Qc2 (better 27.a4!? Ra5 28.Qd2 Rc5 29.Bc5 Nc5 30.Qc2+–) 27...Nb4+– 28.Qa4 Ra8 (28...a5 29.Rab1+–) 29.a3 Nd5 30.Rab1 a6 31.Qc4 Rb1 32.Rb1 Qe4 33.Rb7 h6 34.h3 Kh7 35.f3 Qe7 (35...Qg6 36.Rb3+–) 36.Qd3 g6 37.Kf2 Qd7 38.Bf6 (38.e4!? Ne7 39.Qc4+–) 38…Nf6 (38...Nf6 39.Qd7 Nd7 40.Rc7 Rd8+–). GuestKHXJ – GuestNVTD, freechess.org, 2017.

6.Nf3 0-0 7.Nc3 Qd8 8.a3 Be7 9.Be2 b6 10.0-0 Bb7 11.d4 c5 12.dc5 Bc5 13.Nd4 Nc6 14.Bf3 Qc7 (14...Bd4 15.ed4 Rc8 16.Ne4-/+) 15.Nc6 (15.Ncb5!? Qe5 16.Na7=) 15...Bc6-/+ 16.Bc6 Qc6 17.Qb3 Rad8 18.Rad1 Rd7 19.Rd7 Qd7 20.Rd1 Qc7 (20...Qe7 21.Na4-/+) 21.Nb5=+ Qc6 (better 21...Qe7!?=+) 22.Bf6+= gf6 23.a4 (better 23.Na7!? Qe4 24.Nb5+=) 23...a6=+ 24.Nc3 Qc7 25.Ne4 Be7 26.g3 Rd8 27.Rd8 Qd8 28.Qc3 (28.g4!?-/+) 28...Qd1-+ 29.Kg2 f5 (29...Qa4 30.Nf6 Bf6 31.Qf6 Qe4 32.Kf1-+) 30.Qc8 (30.Nf6 Bf6 31.Qf6 Kf8-/+) 30...Kg7-+ 31.Nc3 (31.Qe8 Bh4-+) 31...Qb3 (31...Qd3 32.a5 ba5 33.Qc6-+) 32.Qc6 Qd5?? (better 32...Qc2 33.Qd7 Bf6-+) 33.Qd5 (better 33.Nd5 ed5 34.Qb6+-) 33...ed5+/- 34.Nd5 a5?? (better 34...Bd8+=) 35.Ne7+- Kf6 36.Nd5 Ke5 37.Nb6 Kd6 38.Nc4 Kc5 39.Na5 Kb4. muhammadaudii (1930) - giupeppino (1890), Rated Classical game, lichess.org, 2020.

6.Nf3 b6?? 7.a3?? Bb7?? (better 7...Be7=+) 8.ab4+- Nbd7 (8...Qd8 9.Bb5 c6 10.Be2+-) 9.Be2 (9.Nc3 Qf5+-) 9...0-0 10.0-0 Ne4 (10...Qd6 11.Nc3+-) 11.Qc2 Ng5 (11...c5 12.d3 Nef6 13.Nc3+-) 12.d3 (better 12.Nc3!? Nh3 13.gh3 Qh5+-) 12...c5 (12...c6 13.Nbd2+-) 13.e4 (better 13.h4 Nh3 14.gh3 cb4+-) 13...Nf3 14.Bf3 Qg5 15.Nd2 (15.bc5 Rfc8+-) 15...Rac8? (15...cb4 16.Nc4 a5+-) 16.bc5 (16.Ra7 cb4 17.Nc4 Rc7+-) 16...Nc5 (16...Rc5 17.Qd1 Ra8 18.Nc4+-) 17.Qd1 (better 17.Ra7!? Rfd8+-) 17...Nd3 18.Qb1?? (18.Bd4 Ra8+-) 18...Nf4?? (better 18...Qd2 19.Ra7 Nb2 20.Rb7 Rb8-/+) 19.Ra7+- Bc6 20.Ra6?? (20.Ba3 Nh3 21.Kh1 Qd2 22.gh3 Qf4+-) 20...f5?? (better 20...Bb5 21.Ra2 Nh3 22.Kh1 Bf1 23.Nf1 Nf2 24.Kg1 Qc5-/+) 21.Rb6 (better 21.Ra7!? Rf7 22.Rf7 Kf7+-) 21...fe4 (21...Nh3 22.Kh1 Qd2 23.gh3+-) 22.Ne4 Be4 23.Be4 (23.Qe4?? Nh3 24.Kh1 Nf2 25.Kg1 Ne4-+) 23...Nh3 24.Kh1 Nf2 25.Rf2 Rf2 26.Bg7?? (26.g3 Qd2 27.Kg1 Rh2 28.Qf1-+) 26...Kg7 (26...Rc1 27.Qc1 Qc1) 27.Qb2?? (27.Rb7 Kg8 28.Rb8 Rb8 29.Qb8 Kg7 30.Qc7 Kf6 31.Qd8 Kf7 32.Qd7 Qe7-+) 27...Qf6 (27...Rb2 28.Rb7 Kg8 29.Rg7 Kg7 30.h3 Rc1 31.Kh2 Qf4) 28.Qf6 (28.Rb7!? Kf8 29.Qa3 Kg8 30.Qg3 Qg6 31.Qg6 (31.Bg6?? Rc1) 31...hg6 32.h3-+) 28...Kf6 29.h3 Rc4 (29...h6 30.Kh2-+) 30.Bf3 (30.Bh7!? Rd4 31.Kh2-/+) 30...Rf4 31.Kh2?? (31.Rb7-+) 31...R4f3 32.Kh1 (32.Rb8 Ke5-+) 32...Rb3 (better 32...Rg3 33.Rb4 Rfg2-+) 33.Re6 (33.Re6 Ke6 34.Kg1 Rbb2 35.Kh2 Rg2 36.Kh1 Rge2 37.Kg1 Re1). fishissushi (1870) - Habibshojaei (1845), Rated Classical game, lichess.org, 2019.

6.Nf3 b6?? 7.Qa4 Nc6 8.Bb5+-.

6.Nf3 b6?? 7.Be2?? Bb7 (7...Be7 8.Nc3 Qd8 9.0-0=+) 8.0-0 (better 8.Qa4 Nc6 9.Bb5+/-) 8...0-0 9.Qa4 (better 9.Bf6 gf6 10.Nc3=+) 9...Bd2?? (9...Be7-/+) 10.Bc3?? (better 10.Nbd2 Qf5 11.Rac1+-) 10...Bc3-+ 11.Nc3 Qd7 12.Rfd1 (12.Qh4!? Nc6-+) 12...Qa4 13.Na4 Nc6 14.Nc3 Rad8 15.h3 Nb4 16.Nd4 (16.a3 Nbd5 17.Nd5 Rd5-+) 16...a6 17.Rd2 (17.a3 Nbd5 18.Nd5 Nd5-+ (18...Bd5?! 19.Ba6 c5 20.Nb5-/+; 18...Rd5?! 19.Bf3-/+)) 17...c5 18.Rb1 (18.Nb3-+) 18...cd4 19.Rb4 (19.ed4 Nbd5 20.Nd5 Nd5-+ (worse 20...Rd5 21.Rb6 Bc8 22.Bf3-+; 20...ed5?! 21.Rb6 Bc8 22.Ba6-+; worse 20...Bd5 21.Rb6 a5 22.Rb5-+)) 19...dc3 20.Rd8 (20.Rc2 b5-+) 20...Rd8 21.Rc4 Nd5 22.Bf3 (22.a3 a5 23.e4 Ba6-+) 22...Rc8 23.Rc8 Bc8 24.Be4 f5 25.Bc2 Nb4 26.Bb3 c2 27.Bc2 Nc2 28.Kf1 Nb4 29.Ke2 (29.a3 Nc2-+) 29...Na2 30.f3 (30.Kd3 b5-+) 30...Nb4 (30...b5 31.g3-+) 31.e4 (31.g4 a5-+) 31...a5 (31...fe4 32.fe4 Bb7 33.Ke3-+) 32.ef5 ef5 33.Kd2 a4 34.Kc3 Nc6 (better 34...a3 35.h4 a2 36.Kb2-+) 35.Kb2 b5 36.Ka3 Bd7 37.g3 Nd4 38.Kb4 Nf3 39.g4 Ng1 (better 39...f4 40.Kc3 Nh4 41.g5-+) 40.gf5 Bf5 41.Kb5 Nh3 (better 41...a3 42.Kc5 Bh3 43.Kd4-+) 42.Ka4 g5 43.Kb4 g4 44.Kc3 g3 45.Kd2 g2 46.Ke3 g1Q 47.Kd2 h5 (47...Qd4 48.Ke1 Qe3 49.Kf1 Qf2) 48.Kc3 Ng5 (48...Qc5 49.Kb3 h4 50.Kb2 Qb4 51.Ka2 Be6 52.Ka1 Qa3 53.Kb1 Bf5) 49.Kc4 (49.Kb2 Qb6 50.Kc3 Ne4 51.Kd3 Qb3 52.Ke2 Qc2 53.Ke1 Qd2 54.Kf1 Qf2) 49...h4 (49...Qc1 50.Kb4 Be6 51.Kb5 Bd7 52.Kb4 Ne4 53.Kb3 h4 54.Kb4 Qc3) 50.Kc3 (50.Kb4 Qb6 51.Kc3 Ne4 52.Kd3 Qb3 53.Ke2 Qc2 54.Ke1 Qd2 55.Kf1 Qf2) 50...h3 (50...Qc5 51.Kb3 h3 52.Kb2 Qb4 53.Ka2 h2 54.Ka1 Qa3) 51.Kc4 h2 (51...Ne4 52.Kb5 Qc5 53.Ka4 h2 54.Kb3 Qc3 55.Ka2 Be6 56.Kb1 h1Q) 52.Kd5 (52.Kb3 Qb6 53.Kc3 h1Q 54.Kd2 Qd4 55.Ke2 Qhd1) 52...h1Q 53.Kd6 (53.Kc4 Qb6 54.Kc3 Qc1) 53...Qf3 (53...Qb6 54.Ke5 Qe4) 54.Ke5 (54.Kc7 Qc5 55.Kd8 Qa8) 54...Qe1 (54...Qc5 55.Kf6 Ne4) 55.Kf6 (55.Kd6 Qb7 56.Kc5 Qeb4) 55...Qd3 (55...Nh7) 56.Kg5 Qdg3 57.Kf5 ½-½. fishissushi (1935) - VladP_708 (1900), Rated Classical game, lichess.org, 2020.

6.Bf6 gf6 7.Nc3 Qa5–/+.

6.Bc4? 0-0 7.Bd5 Qd5 8.Qb3?? (better 8.Bg7 Qg2 9.Bh6-/+) 8...Qg2-+ 9.Qb4 (9.Nf3 Qh1 (9...Qf3?! 10.Rg1 e5 11.Qb4-+) 10.Ke2 Qg2 11.Qb4 b6-+) 9...Qh1 10.Kf1 (10.Qg4 e5 11.Qg3 Nc6-+) 10...Qd5 (10...Qh2 11.Nf3 Qh5 12.Qc3-+) 11.Qc3 f6 12.Ba3 Nc6 (better 12...Rf7 13.d4-+) 13.Bf8 Kf8 14.Qc2 Nb4 (better 14...Qe5!? 15.d4 Qh2 16.Nf3 Qh1 17.Ke2-+) 15.Qh7 Qb5 (15...b6!? 16.Nc3 Ba6 17.Nce2-+) 16.Ne2 Nc2?? (better 16...Qd3 17.Qh8 Kf7 18.Qh5 Ke7 19.Qc5 Qd6 20.Qd6 Kd6-/+) 17.Qc2+- b6 (better 17...Qe5 18.d4 Qh2+-) 18.Qc7 Ba6 19.Nbc3 Qc4 (19...Qd3 20.Kg2 e5+-) 20.Rc1 (better 20.Qd6 Ke8 21.d3+-) 20...Qc7-+ 21.Ne4 (21.f4 Qc5 22.Kf2 Qh5-+) 21...Qh2 (better 21...Qc1! 22.Kg2 Be2-+) 22.N4g3 Qh3 23.Ke1 Be2 24.Ke2 Qh2 (better 24...Qg4!? 25.Ke1-+) 25.Rh1 (25.Kf3 Qh7 26.d4-+) 25...Re8 (better 25...Qg2 26.a3 Qd5-+) 26.Rh2+- e5 27.Rh8 Kf7 28.Re8 Ke8 29.Nf5 Kd7? (29...g6 30.Ng3 Kd7+-) 30.Ng7 Kc6 (30...Ke7 31.Nf5 Kd7 32.Kd3+-) 31.Ne6 (31.Nh5!? f5+-) 31...a5 (31...Kd6 32.Nf8+-) 32.Nd8 (32.f4 Kd5 33.Nc7 Kd6 34.Nb5 Kc5+-) 32...Kb5 (32...Kd5+-) 33.Ne6 a4?? (33...Kc6 34.f4 b5+-) 34.Nc7 (34.Kf3 Kb4+-) 34...Kc4 35.Ne6 (35.d3!? Kc5+-) 35...b5?? (35...Kb5 36.Kf3+-) 36.Nf4 (36.d3 Kb4 37.Nc7 Kc5+-) 36...b4?? (36...ef4 37.d3 Kc3-+) 37.Nd5?? (better 37.d3 Kc5 38.d4 ed4 39.Nd3 Kc4 40.ed4 Kd4 41.Nb4+-) 37...b3?? (37...Kd5 38.Kd1 e4-+) 38.Ne7 (38.Ne7 ba2 39.Ng8-+; 38.Nf6?? ba2 39.f4 a1Q-+). EvgeniyR – yomlod, Rated Classical game, lichess.org, 2018.

6.Bg7 Rg8 7.Bb2 b6 8.a3 (8.e4 Ne7+=) 8...Be7 9.Nc3 (9.Qh5 Nf6 10.Bf6 Bf6 11.Qh7 Rg6+=) 9...Nc3 10.Bc3 Bb7 11.Qb3 (11.Nf3 Nd7=) 11...Nd7 (better 11...Rg2!? 12.Qa4 Qd7 13.Qd7 Nd7-+) 12.Nf3=+ c5 13.Be2? (13.Rd1 Bd5 14.Qc2 f5=) 13...Qc7 (better 13...Rg2!? 14.Qc2 f5-/+) 14.0-0= 0-0-0 (better 14...Bd6 15.h3 a6=) 15.Ne5?? (better 15.Rfc1=) 15...Ne5 (better 15...Rg2 16.Kh1 Ne5 17.Be5 Qe5 18.Qe6 fe6 19.f4 Re2 20.e4 Be4 21.Kg1 Rg8) 16.Bh5 (16.f3 c4 17.Qa4 Kb8-+) 16...f5 (16...Rg2 17.Kh1 Rg1 18.Kg1 Rg8 19.Bg6 Rg6) 17.d4 (17.Qe6 Qd7 18.Qd7 Rd7 19.g3 Nf3 20.Bf3 Bf3 21.d4-+) 17...cd4 (17...Rg2 18.Kh1 Rg1 19.Kg1 Rg8 20.Bg6 Rg6) 18.ed4 (18.e4 dc3 19.Qe6 Kb8 20.Qf5-+) 18...Nc6 (18...Rg2 19.Kh1 Rg1 20.Kg1 Rg8 21.Bg6 Rg6) 19.Rfd1 (19.Bf3 Kb8 20.Rfd1 Qf4-+) 19...Kb8 (19...Rg2 20.Kf1 Rf2 21.Ke1 Qf4 22.Ba5 Rf1 23.Ke2 Ba6 24.Qc4 Bc4 25.Rd3 Nd4) 20.d5 (20.Bf3 Ne5 21.de5 Bf3 22.Rd8 Bd8-+ (22...Rd8?! 23.gf3 Rd3 24.Rc1-+)) 20...ed5 (better 20...Ne5 21.Be5 Qe5-+) 21.Rd5 (21.Bf7 Rg2! 22.Kg2 d4-+) 21...Rd5 (better 21...Rg2! 22.Kg2 Nd4 23.Bd4 Bd5 24.Qd5 Rd5-+) 22.Qd5 Bd6 (better 22...Qd8 23.Bf3 Qd5 24.Bd5 Rd8-+) 23.Qg8+- Bc8 24.Bf3 (better 24.h3!?+-) 24...Bh2+/- 25.Kf1 Be5 (25...Ne5 26.Be5 Be5 27.Re1+/-) 26.Be5 (26.Rc1 Bf4 27.Rd1 Nd8+-) 26...Qe5 (26...Ne5!? 27.Be2 Ng4+/-) 27.Re1 Qb5 (27...Qc5 28.Qg3 Kb7 29.Qg5+-) 28.Kg1 Nd4?? (28...Qc5 29.Qg3 Kb7+-) 29.Re8 (29.Qg3 f4 30.Qf4 Qe5 31.Qe5) 29...Qa6?? (better 29...Nf3 30.gf3 Qc6+=) 30.Bd5 (30.Qg3 f4 31.Qf4) 30...Ne2+- 31.Kh2 Nf4 32.Re5 (better 32.Qg3 Qa4 33.Re4+-) 32...Nd5+/- 33.Qd5 Qb7? (better 33...Qa3 34.Qd8 Qc1 35.Rf5 Qh6 36.Kg3 Qe6+/-) 34.Re8?? (better 34.Qb7 Kb7 35.Re7 Ka6 36.Kg3+-) 34...Qd5-+ 35.f3 Qe5 (better 35...Qd6 36.Kg1 Qa3-+) 36.Kh1?? (better 36.Re5 Kc7 37.Re7 Bd7 38.Rh7+-) 36…Qe1 (36...Qe1 37.Re1 b5+-). EvgeniyR – stoebken, Rated Classical game, lichess.org, 2018.

6.Bg7 Rg8 7.Bb2 c5 8.Bb5 (8.a3 Ba5+=) 8...Nc6 (better 8...Nd7=+) 9.Bc4 (9.Bc6 bc6 10.a3 Ba5=) 9...a6 (better 9...Ne3!? 10.fe3 Qh4 11.g3 Qc4-+) 10.a3 Ba5 11.Bd5? (11.Bf1!?=+) 11...ed5 (11...Qd5 12.Nc3 Qg2 13.Qf3-+) 12.Ne2 (12.g3-/+) 12...Be6 (better 12...Rg2!? 13.Nf4 Qg5-/+) 13.Nf4=+ Qd7 (13...Qg5 A) worse 14.Ne6 Qg2 (14...fe6?! 15.g3=+) 15.Ng7 Rg7-+; B) 14.Nc3=+) 14.0-0 (14.Qc2 Qd6+=) 14...0-0-0 (14...Qe7 15.Qf3 Qg5 16.Rc1=) 15.Nc3 (15.Bf6 Rde8 16.Qh5 Bc7=+) 15...Kb8 (15...d4 A) worse 16.Ne6 dc3 (16...fe6?! 17.Ne4=) 17.Nd8 cb2-/+; B) 16.Ne4 de3 B1) 17.Ne6? B11) 17...fe6?! 18.de3 (18.Nc5?? Qd5 19.g3 Qc5-+) 18...Qd1 19.Rad1=; B12) 17...Qe6 18.Qf3 ed2-+; B2) 17.Bf6=) 16.Nce2 Bc7 17.d4 (17.Qc2!?+=) 17...c4= 18.Nc3?? (18.Rc1 Rc8=) 18...f5?? (better 18...Bf4 19.ef4 Bh3-+) 19.Nfe2 (19.Nce2 Rde8=) 19...f4 20.ef4 Qf7 21.f3 Bf4 22.Nf4 Qf4 23.Qc1? (better 23.Ne2 Qe3 24.Rf2-/+) 23...Qd4-+ 24.Rf2?? (24.Kh1 Qg7 25.Rf2 d4-+) 24...Qc5 (better 24...Rg2! 25.Kg2 Rg8 26.Kh1 Qf2-+) 25.a4? (25.Qh6 Qe7-+) 25...d4 (25...Rg2 26.Kg2 Rg8 27.Kf1 Bh3 28.Ke2 Nd4 29.Kd1 Rg1 30.Kd2 Nb3 31.Ke2 Nc1 32.Bc1-+) 26.Ba3 Nb4 (better 26...Qg5 27.f4 Qh4-+) 27.Ne4-/+ Qe7?? (better 27...Qa5 28.Qe1 Nc6-/+) 28.Qc4?? (better 28.a5+/-) 28...Bc4-+ 29.Bb4 (29.Rb2 a5 30.Kh1 Bd5-+) 29...Qb4 30.Rff1 (30.h3 Rge8 31.g4 d3-+) 30...d3 (better 30...Bf1 31.Rf1 d3 32.g3-+) 31.Rab1 Qa4 32.Ra1 Ba2 (32...Qc2 33.Ng3 Qb2 34.Rab1 Qd4 35.Kh1 Rg3 36.Rfe1 Rg2 37.Kg2 Rg8 38.Kh1 Qf2 39.Rb7 Kb7 40.Re7 Kc6 41.Rc7 Kc7 42.f4 Bd5) 33.Rfd1 Qd4 34.Kh1 Bc4 (34...Bb3 35.Rg1 d2 36.Nd2 Qd2 37.Raf1-+) 35.Ra4 b5 (better 35...Qb2 36.Nd2 Bb3 37.Rb4-+) 36.Rb4 d2! 37.Nd2 (37.Rd2 Qa1 Mate attack; 37.Nd2 Rg2 Decoy) 37...Rge8 (37...Qf2 38.Rg1 Rd2 39.Rb5 ab5 40.h3 Rg2 41.Rg2 Qg2) 38.h3 Qd2 39.Rd2 Rd2 40.Kh2 Ree2 (40...Rg8 41.Kh1 Rgg2 42.Rc4 bc4 43.f4 Rge2 44.f5 Re1) 41.Rb1 Rg2 42.Kh1 Rh2 43.Kg1 Rdg2 0-1. EvgeniyR (1775) - olegfr151 (1795), Rated Classical game, lichess.org, 2020.

6.Bg7 Rg8 7.Bb2 Nc6 8.Bb5 (8.Nf3 a6=) 8...Bd7 (8...Rg2 9.Bc6 bc6 10.Qf3-/+) 9.Nc3 (9.e4 Nb6 10.a3 Bc5=+) 9...Nc3 (9...Rg2!? 10.Nd5 ed5-/+) 10.dc3=+ Bd6 11.Qc2 (11.Bf1 Qf6=+) 11...Qg5 (11...Rg2 12.Qh7 Qf6-+) 12.Bc6? (better 12.Qh7 Rg7 13.Qh8 Bf8 14.c4=+) 12...Bc6-+ (12...bc6?! 13.g3 (13.Qh7? Qg2 14.0-0-0 0-0-0-+) 13...Rb8 14.e4=) 13.0-0-0? (better 13.Nf3 Qh5 14.0-0-0-+) 13...Qg2 14.Ne2 Bf3 (14...Qf2 15.e4-+) 15.Nf4?? (better 15.Rhg1 0-0-0 16.Rg2 Rg2 17.Rf1+-) 15...Qf2 (better 15...Bd1 16.Rd1 Qh2 17.Qa4 Ke7-+) 16.Rdf1 (better 16.Qf2 Bh1 17.Rh1+-) 16...Qe3-+ 17.Kb1 (17.Qd2 Bf4 18.Qe3 Be3 19.Kc2 Bh1 20.Rh1 Rg2 21.Kb3 a5-+) 17...Bf4 (better 17...Be4!? 18.Nd5 Bc2 19.Ka1 ed5 20.Re1-+) 18.Qh7 (18.Bc1 Qb6 19.Ka1 Bh1 20.Qa4 Qc6 21.Qf4 0-0-0-+) 18...0-0-0 (better 18...Be4 19.Qe4 Qe4 20.Ka1-+) 19.Qc2 (19.Re1 Qd2 20.Bc1 Qc3 21.Qc2 Qc2 22.Kc2 Bc1 23.Kc1 Bh1 24.Rh1-+) 19...Be4 20.Qe4 Qe4 21.Ka1 Rd2 22.Rd1 Qc2 23.Rd2 (23.Rb1 Rgg2 24.Rhg1 Rg1 25.Rg1 Qb2) 23...Bd2 24.Rb1 (24.a3 Bc3 25.Bc3 Qc3 26.Kb1 Rg2 27.h4 Qb2) 24...Rg2 (24...Bc3 25.a3 Qb3 26.Bc3 Qa3) 25.h4 (25.Bc1 Bc3 26.Bb2 Bb2 27.Rb2 Qb2) 25...Bc3 26.Bc3 (26.a3 Bb2 27.Rb2 Qb2) 26...Qc3 (26...Qa2) 27.Rb2 Qb2 0-1. Agiant (1645) - JulayE3 (1785), lichess.org, 2019.

5.b5 Bd6 6.Bc4 0-0 7.Nf3 Qe7 8.d4 Nbd7 (8...a6 9.Nc3=) 9.Nc3 e5 10.0-0 e4 11.Nd2 Nb6 12.Be2 Bf5 13.a4 a5 14.g3 (14.ba6 ba6 15.Rb1 Nfd5=) 14...Bh3 15.Re1 Qe6 (15...Rad8 16.f3=) 16.Qc2 Pawn e4, live or die! (better 16.f3=) 16...Qf5 (better 16...Bf5=+) 17.Nce4 Rae8 (17...Ne4 18.Qe4 Bb4 19.Red1+/-) 18.Nf6 (18.Bd3!? Bb4 19.f3 Ne4 20.Be4 Qh5+-) 18...Qf6+/- 19.Bf3 Nd7? (better 19...Bf5 20.Qd1 Qg6+-) 20.Ne4?? (better 20.Bb7 Bb4 21.Bc3+-) 20...Qg6 (20...Qf3 21.Nf6 Nf6 22.Qh7 Kh7 23.e4 Qg2) 21.Rac1?? (better 21.Ba3 Re7 22.Bh1+=) 21...Bf5-+ 22.h4 (better 22.Bc3 b6 23.Bd2-/+) 22...Kh8?? (better 22...Be4 23.Be4 Re4-+) 23.h5+= Qh6 (23...Qe6 24.d5 Qe7 25.h6+=) 24.Qc4?? (better 24.g4 Be4 25.Be4+/-) 24…Nf6 (24...Nf6 25.Nf6 Qf6 26.Bb7 Qg5+-; 24...Re4?! 25.Qd5 Qe6 26.Qb7=) 0-1. ClayPigeons (2110) - hjjng (2210), Rated Classical game, lichess.org, 2020.

5.Bc4 Nbd7 6.a3= Be7 7.Nf3 b6 (7...0-0 8.0-0=) 8.0-0 Bb7 9.d4 0-0 10.Nc3 Ne4 (10...c5 11.dc5 bc5 12.b5=) 11.d5 Nc3 12.Bc3 ed5 13.Bd5 Bd5 14.Qd5 Bf6 15.Bf6 Nf6 16.Qd8 (16.Qc6 a5+=) 16...Rfd8 17.Rfd1 (17.Rac1 Rd3 18.Rc7 Ra3+=) 17...Kf8 (17...c5 18.bc5 bc5 19.Ne5=) 18.Kf1 (18.Rdc1 Rd7=) 18...Ke7 (18...c5 19.bc5 bc5 20.Ne5=) 19.Ke2 (19.Rd8 Rd8 20.Nd4 Rd5+=) 19...Ne4 (19...c5 20.bc5 bc5 21.Ne5=) 20.Rd4 (20.Rd8 Rd8 21.Nd4 Kf6+=) 20...Rd4 (20...Nc3 21.Kf1 Rd4 22.ed4=) 21.Nd4 (21.ed4 Kd6=) 21...c5 22.Nf5 (22.Nb5 a5 23.bc5 bc5=) 22...Kf6+= 23.Ng3 Ng3 24.hg3 cb4 25.ab4 a5 26.Ra4 Ke5 27.ba5 ba5 28.Kd3 Kd5 29.Kc3 Kc5 30.Rc4 Kb6 31.Kb3 Ra7 32.Rh4 h6 33.Rg4 g5 34.Rd4 Kc5 35.Rc4 Kb5 Black intends a4 36.Rd4 a4 37.Ka3+= Kc5 38.Rb4 Rd7= 39.Rb2 Kc4 40.Rc2 Kd3 41.Rb2 Kc3 42.Rb6= Rd1 43.Rc6+= Kd3 44.Ka4 Ke2 45.Rh6 Kf2–/+ 46.Rf6 Kg2 47.Rf7 Kg3 0–1. Knight,Timothy – Dennis,N (1930), Guernsey GCI, 2011.

5.Bc4 Be7 6.Nf3= 0-0 7.0-0 (7.a3 c6=) 7...b6 (7...Bb4 8.d4=+) 8.d4 (8.a3 Bb7=) 8...Bb7 (8...Bb4 9.Nbd2=+) 9.Qc2 (9.a3 Bd6=) 9...Nc6 (9...Bf3!? 10.gf3 Bb4-/+) 10.b5 (10.a3!?+=) 10...Nb4=+ 11.Qc3 (11.Qb3 Bf3 12.gf3 c6=+) 11...Bf3 12.gf3 h6 (12...c6 13.bc6 Rc8 14.Rc1=+) 13.e4 (better 13.a3 Nbd5 14.Qb3=) 13...Nh5?? (better 13...Rc8=) 14.Bd3?? (14.a3 Nf4 15.Kh1+- (15.ab4?? Bb4 16.Kh1 Bc3 17.Bc3 Qh4-+)) 14...Nf4 (better 14...Nd3 15.Qd3 Nf4-/+) 15.e5?? (15.Bc4 Bd6 16.Rd1 Qg5 17.Kf1-+) 15...Nbd3-+ 16.Rd1 Nb2 (16...Bh4 17.Kf1 Qg5 18.Rd3 Bf2 19.Kf2 Qg2 20.Ke3 Nd5 21.Ke4 Qg6) 17.Qb2 Bc5 18.dc5 (18.Kh1 Qh4 19.Qc1-+) 18…Qd1 0-1. Agiant – pantrokrator, lichess.org, 2019.

6.a3 Be7 7.Nc3 0-0 8.Qc2 a6 9.Bd3 Nc6 (9...b5 10.Nf3-/+) 10.Nge2 (10.Nf3!?-/+) 10...Ne5-+ 11.0-0?? (better 11.Nc1-+) 11...Nd3 12.Qd3 (12.Nc1 Nb2 13.Qb2-+) 12…Qd3 0-1. EvgeniyR (1605) – anotherskintowear, Rated Classical game, lichess.org, 2018.

6.a3 Be7 7.d4 c6 8.f3 (8.Nf3 Nd5=+) 8...Qa5 9.Bc3 Qc7 10.Qa4? (better 10.Ne2-/+) 10...b5-+ 11.Bb5 cb5 12.Qb5 Qc6 13.Qc6 Nc6 14.Nd2 (14.Ne2 Ba6-+) 14...0-0 (better 14...Nd5 15.Ra2-+) 15.Ne4 Nd5 16.Bd2 Nb8 (16...f5 17.Nc3-+) 17.Ne2 (17.Nc5 Rd8-+) 17...Nd7 (17...Na6 18.0-0-+) 18.N2c3 (18.N4g3 N5b6-+) 18...Nc3 (18...N5b6 19.Nb5-+) 19.Bc3 Nf6 (better 19...Bb7-+) 20.Ng5?? (20.Nf6 Bf6 21.Rb1 Ba6-+) 20...h6 (better 20...Nd5 21.Nf7 Kf7 22.Bd2-+) 21.Nh3 Nd5 22.Bb2 (22.Bd2 Rd8-+) 22...Bd8 (22...Ne3 23.Kf2 Nc4 24.Bc3 Na3 25.Rhc1-+) 23.0-0? (23.Kf2 Bh4 24.g3 Be7-+) 23...Ba5 (23...Ne3 24.Rfc1-+) 24.Rab1 (24.e4 Rb8 25.Rf2 Nc3 26.Bc3 Bc3-+) 24...Nc3 (better 24...Ne3 25.Rfc1 Rb8-+) 25.Bc3 Bc3 26.Rfc1? (26.Rb3 Ba5-+) 26...Ba5 (26...Bd2 27.Kf2 Bc1 28.Rc1-+) 27.Rb5?? (27.Kf2 Ba6-+) 27...Bd8 (better 27...Bd2 28.Rd1 Be3 29.Kh1 Rd8-+) 28.Rcc5 (28.Rb3 Bb6-+) 28...Bf6 (28...Ba6 29.Rb3-+) 29.Nf4 a5! 30.Nd3? (30.Ra5 Bd7 Decoy) 30...Ba6-+ 31.Rb3 Bd3 32.Rd3 a4 (32...Rfc8 33.Rcc3-+) 33.e4 (33.Rdc3 Rfb8 34.Rc7 e5-+) 33...Kh7 (33...Rfb8!? 34.Rcc3-+) 34.e5 Bg5 35.g3 Rab8 36.f4 Rb1 37.Kg2 Be7 (37...Be7 38.Rc7 Rb3 39.Rb3 ab3-+) 0-1. alex296 – CHUPETIN, Rated Classical game, lichess.org, 2013.

6.a3 Be7 7.d4 Nc6 8.Nf3-/+.

6.Qa4 Nc6 –/+.

6.Bc3 Bc3 7.Nc3 0-0 (7...c5 8.Nf3–/+) 8.Nf3 Nc6 (8...c5 9.d4–/+) 9.0-0 (9.d4 Qe7=+) 9...a6 (9...e5 10.Bb5 Bg4 11.Bc6 bc6 12.h3 Bf3 13.Qf3 Qd2 14.Qc6–/+) 10.Re1 (10.d4 b5 11.Bd3 Nb4=+) 10...b5–/+ 11.Be2 Bb7 12.d4 Ne7 (12...Qd6 13.Nd2–/+) 13.Ne5 (13.Qb3 Rb8–/+) 13...Ned5 (13...Qd6 14.Nd3–/+) 14.Nd5=+ Bd5 15.Bf3 (15.Qc2 Qd6=+) 15...Bf3 (15...Nd7 16.Nd7 Qd7 17.Rc1=+) 16.Nf3 (16.Qf3 Qd5=+) 16...Rc8 17.Ne5 (17.Rc1!?=+) 17...c5–/+ 18.dc5 (18.a4 b4–/+) 18...Qd1 (18...Rc5 19.f4–+) 19.Red1–/+ Rc5 20.Nd7 Nd7 21.Rd7 Rfc8 22.g3 h5 (22...g5 23.Ra7 R5c6 24.Rd1–/+) 23.Rdd1 (23.Ra7 R5c6–/+) 23...Rc2–+ 24.Kf1 (24.Rd6 a5–+) 24...Rb2 (24...Kf8 25.a3–+) 25.Rdb1 Rcc2 26.Rb2 Rb2 27.Kg2 (27.e4 g5–+) 27...a5 (27...f5 28.a3–+) 28.h4 (28.e4 f5 29.ef5 ef5–+) 28...a4 (28...f5 29.Kf3–+) 29.a3 b4 (29...f5 30.Kf1–+) 30.ab4 Rb4 31.Kf3 Kf8 32.Ke2 Ke7 33.Kd3 Rb2 (33...Kd6 34.Rd1 Kc5 35.Rc1 Kb6 36.Rc8–/+) 34.Ra4–/+ Rf2 35.Rf4 (35.g4 hg4 36.Rg4 g6–/+) 35...Rg2 (35...Rf4 36.gf4 f6 37.e4–+) 36.Rf3 f5 (36...Ra2 37.Kc4–+) 37.e4–/+ fe4 (37...Ra2 38.ef5 Ra3 39.Ke4 Rf3 40.Kf3 ef5 41.Ke3–+) 38.Ke4 Re2 39.Re3? (better 39.Kf4 Kf6 40.g4–/+) 39...Re3–+ 40.Ke3 Kd6 41.Kf3 (41.Ke4 e5 42.Kf3 g6–+) 41...Kd5 42.g4 hg4 (42...hg4 43.Kg4 e5–+) 0–1. Valpa – Marceli, playchess.de, 2002.

6.Bc3 Bd6 7.Nf3–/+.

6.Nf3 0-0 7.0-0 Nc6 8.Nc3 b6 9.a3 Bc3 (9...Ba5 10.Qc2+=) 10.Bc3+= Bb7 11.d4 Ne4 12.Bb2 Na5 13.Bd3 Bd5 14.Qc2 f5 15.Ne5 Nb3 (15...Qg5 16.Nf3 (worse is 16.Qc7 Nd2 17.g3 Qh5–+) 16...Qe7 17.Ne5+=) 16.Rad1= Ned2? (better is 16...Nd6!?=) 17.Rd2+/– Nd2 18.Qd2 Qd6 19.f3 Rad8 20.e4 (better is 20.Rc1!? c5 21.Qc3 cd4 22.ed4+–) 20...fe4+= 21.fe4 Rf1 22.Kf1 (22.Bf1 Be4 23.Qf4+=) 22...Rf8?? (22...Be4 23.Ke2 Bd3 (worse is 23...Bg2 24.Qc2 Rf8 25.Ke1+/–) 24.Qd3 Qd5–/+) 23.Kg1+/– Bb7 24.Qg5 c5 25.Nc4 Qf4? (better is 25...Qd7!?+/–) 26.Qf4+– Rf4 27.Bc1 (27.Nd6 Bc6+–) 27...Rg4? (27...Re4 28.Be4 Be4 29.dc5 bc5 30.Be3+–) 28.Ne5 (better is 28.Nd6!? Bc6 29.dc5 bc5 30.Be3+–) 28...Rh4 29.g3 Rh5 30.Be2 Re5 31.de5 Be4 32.Bg5 Kf7 33.Bc4 (33.Bd2 Bd5+/–) 33...Kg6 (33...Bd5 34.Bd3+/–) 34.Bd8 Bd5 35.Bd5 (35.Bd3!? Kf7 36.Kf2+/– (36.Bh7?! g6+=)) 35...ed5 36.e6 d4? (better is 36...h5!?+=) 37.Kf2 (37.g4 d3 38.Kf2 h6+–) 37...c4? (37...h5 38.h4 d3 39.Ke3+–) 38.Ke2 (38.h4 h5 39.g4+–) 38...b5?? (38...h5 39.h4 b5+–) 39.g4 a5 (39...d3 40.Kd2 b4 41.h4+–) 40.h4 (40.Ba5?! Kf6=) 40...b4 (40...h6 41.h5 Kh7 42.e7+–) 41.h5 (41.Ba5?! ba3 42.Bd8 d3 43.Ke3 a2=) 41...Kh6 42.ab4 (42.e7 g6 43.e8Q d3 44.Kd1 Kg7 45.h6 Kh6 46.Qf8) 42...ab4 43.e7 b3 (43...g6 44.e8Q d3 45.Kd1 Kg7 46.h6 Kh6 47.Qf8) 44.e8Q d3 45.Kd2 (45.Kd1 c3 46.g5) 45...c3 46.Kc3 1–0. zabazaba (1645) – paulatica, gameknot.com, 2015.

6.Nf3 Nc6 7.0-0 0-0 8.a3 Be7 9.Be2 (9.Qc2 Qd6–/+) 9...a6 (9...Bd6 10.d4–/+) 10.d4 b5 11.Nbd2 Bb7 12.Bd3 Na5 (better is 12...Qd5=+) 13.Ne4?? (better is 13.Qc2=+) 13...Ne4 (13...Be4 14.Be4 Ne4 15.Qc2–+) 14.Be4 Be4 15.Ne5 Bf6 16.Qg4 Bf5 17.Qg3 Be5 18.Qe5 Nc4 19.Qf4 Nb2 20.e4 Bg6 21.h4 Nd3 22.Qe3 Nb2 23.Rab1?? Nc4–+ 24.Qc3 Be4 25.f3 Bb1 26.Rb1 Qh4 27.a4 Rad8 28.ab5 ab5 29.Rb5 Rd4 30.Rb1 Nd2 31.Rd1 Rfd8 32.Qc7 Nf3! 33.gf3 Rd1 34.Kg2 R8d2# 0–1. guest1069 – guest470, ICS blitz, 2001.

5.cd5 ed5 6.bc5 Bc5=.

6.Qb3 Nc6=+ 7.Nf3 0-0 8.cd5 ed5 (8...Nd5 9.Nc3=) 9.a3 (9.Be2 Qe7=+) 9...Qe7 10.Be2 Bf5 11.d4 Bd6 12.Nc3 Be4 13.Ng5 Bg2–/+ 14.Rg1 Be4 15.Nge4 de4 16.Qc2 Rac8 17.Bg4 Ng4 18.Rg4 f5 19.Rg2 Qf7 20.Qa4 Rfe8 21.Nb5–/+ Bb8 22.Kd2 a6–+ 23.Nc3 Ne7 24.Rag1 g6 25.h4 Qc4 26.Qc4 Rc4 27.h5 Kf7 28.hg6 hg6 29.Rh1 Rec8 30.Rh7 Kg8?? 31.Re7+– Bd6 32.Re6 Ba3 33.Reg6 Kh7 34.R6g3 (34…Bf8 35.Rh3 Bh6 36.Rg5+–; 34.Rg7 Kh6 35.R7g3 Rd4 36.ed4 e3 37.fe3 Be7 38.Rh3 Bh4 39.Rh4#) 1–0. Rist,Joachim – Wiwie,Manfred, Oberschwaben–chB, 1995.

6.cd5 ed5 7.Bb5 Bd7 8.Bd7 Nbd7 = (< 8...Kd7 9.Bf6 Qf6 10.Nc3+/–; < 8...Qd7 9.Bf6 gf6 10.Nc3+=).

6.cd5 ed5 7.Nf3 0-0 8.Be2 Nc6 9.0-0 Bf5 10.Nc3 d4 11.Na4 d3 12.Nc5 de2 13.Qe2 b6 14.Bf6 gf6 15.e4 Re8 16.Qb5 bc5 17.ef5 Nd4 18.Nd4 Qd4 19.Rac1 Rac8 20.Rc4 Qd2 21.Rg4 Kf8 22.Qa6 Qe2 23.Qd6 Qe7 24.Qd2 Qe5 25.Qh6 Ke7 26.Ra4 Red8 27.Ra6 Rd6 28.Ra7 Rd7 29.Ra5 Rd6 30.Ra3 Qf5 31.h3 c4 32.Re3 Re6 33.Rfe1 c3 34.Re6 fe6 35.Qg7 Kd6 36.Rd1 Ke5 37.Qd7 Qc2 38.Re1 Kf5 39.Qe6 Kg6 40.Qg4 Kf7 41.Qc8 Qd2 42.Qe8 Kg7 43.Re7 Kh6 44.Qf8 Normal 1-0. carlos78 (2205) - Goran_Krastev (2270), Rated Blitz game, lichess.org, 2015.

6.cd5 ed5 7.Nf3 Nc6 8.Be2 Bg4 9.0-0 0-0 10.d4 Bd6 11.Nbd2 (11.Ba3 Rc8=) 11...Re8 12.h3 Be6 (12...Bf5 13.Rc1=+) 13.Ne5= Qc8 (13...Rc8 14.Nc6 bc6 15.Qa4=) 14.f4 (14.Rc1=) 14...Bh3 (better 14...Rb8=+) 15.gh3+/- Qh3 16.Rf2 (better 16.Rf3!? Qe6 17.Rc1+/-) 16...Qe3= 17.Nf1 Qh3 18.Rh2 Qf5 19.Qd2 Bb4 20.Qe3 Rac8 21.Bd3 Qe6 22.Ng3 h6? (better 22...Rc7+=) 23.Bf5+- Qd6 (23...Qe7 24.Bc8 Rc8 25.Nf5+-) 24.Bc8 Rc8 25.Nf5 Qe6 (25...Qf8 26.Rg2 g6+-) 26.Qd3 (better 26.Nh6 gh6 27.f5+- (27.Rh6?! Bf8 28.Rh2 Bg7+/-)) 26...Ne4 27.Ne3 Ne5 28.de5 Qg6? (better 28...Bc5 29.Bd4 Bb6+-) 29.Rg2 Qe6 (29...Qb6 30.Kh2 Bc5 31.Nd5 Qd8+-) 30.Nd5 (worse 30.Qd5 Qd5 31.Nd5 Bc5 32.Kh2 Kf8+-) 30...Bc5 31.Kh2 f5 (31...Rd8 32.Rd1 Rd5 33.Qd5 Qf5 34.Qd8 Kh7+-) 32.ef6 Nf6 (32...g5 33.Re2 Rd8+-) 33.Nf6 Kh8 34.Qh7 1-0. BeepBeepImAJeep (2510) - BehindBluEyes (2395), lichess.org, 2017.

6.cd5 ed5 7.Nf3 Be6 8.Be2 Nc6 9.0-0 Qd6 (9...0-0 10.Qb3=) 10.d3 (10.Bf6 gf6 11.d4 Bb6+/-) 10...Nb4 (10...Qe7!?=) 11.a3 Nc6 12.Nbd2 (12.Bf6 gf6 13.d4 Bb6+/-) 12...Rc8 (12...Qe7 13.Qa4+=) 13.Qa4 0-0 (better 13...Qe7+=) 14.Bd4 (better 14.Bf6!? gf6 15.Rfc1+/-) 14...Bd4 (14...Nd4 15.Nd4 Bd7 16.Qb3 Bd4 17.ed4-/+) 15.Nd4= Bd7 (15...a6 16.Rfb1 Nd4 17.Qd4=) 16.Nc6 Bc6 (16...a6 17.Rfc1=) 17.Qa7+= d4 (17...Ra8!? 18.Qd4 Ra4+=) 18.Qd4+/- Qd4 19.ed4 Rfe8 (19...Rcd8 20.Nb3+/-) 20.Bf3+- Bf3 21.Nf3 Rcd8 22.Rfe1 Re1 23.Re1 Ng4? (23...Ra8!? 24.Re7 Ra3+-) 24.h3 (24.Re7 Rb8+-) 24...Nf6 25.Re7 (25.Rb1 Rd7+-) 25...Nd7 (25...Rd7 26.Rd7 Nd7 27.d5+-) 26.Kf1 (26.Ng5 b6+-) 26...b5 (26...Kf8 27.Re1+-) 27.Ke2 (27.Ng5 Nf6 28.Rb7 h6 29.Nf7 Rd4+-) 27...Nb6 (27...Kf8 28.Re3 Ra8+-) 28.Kd2 Nd5 29.Rb7 Nf6 (29...Nf4 30.Ne1+-) 30.Rb5 Nh5 (30...Nd5 31.g3+-) 31.a4 (better 31.Rh5 Ra8 32.Rc5+-) 31...Nf4 32.a5 Ne6 (32...h6 33.Ne1+-) 33.Rb4 Ra8 34.Ra4 (34.d5 Nd8 35.Nd4 Kf8+-) 34...Ra6 35.d5 (35.Ke3 Nc7+-) 35...Nc5 36.Ra3 (better 36.Rb4 g6 37.d4 Ne4 38.Kd3 Nf2 39.Ke3 Nd1 40.Kd2+-) 36...Nb7 (36...Ra5 37.Ra5 Nb3 38.Kc3 Na5 39.Kb4+-) 37.Kc3 (better 37.Rb3 Ra5 38.Rb7+-) 37...Ra5 38.Ra5 Na5 39.Kd4 (better 39.Kb4!? Nb7 40.Kb5 Nd8+-) 39...Nb7 40.Ke5 Kf8 41.d6 Ke8 42.Kd5 Kd7 (42...Nd8+-) 43.Ne5 Kd8 (43...Ke8 44.Kc6 Nd8 45.Kc7 Ne6 46.Kc8+-) 44.Kc6 (better 44.Nf7!? Kd7+-) 44...Na5 45.Kb5 Nb3 46.Kc6 Nd4?? (46...Na5 47.Kb6 Nb3 48.Nf7 Kd7+-) 47.Kd5+- Ne6 (47...Ne2 48.Nf7 Ke8+-) 48.Nf7 Kd7 49.Ne5 Kd8 50.Ke6 Kc8 51.d7 Kd8 (51...Kc7 52.Nf7 Kb6 53.d8Q Kc5 54.Qa5 Kd4 55.Ne5 g5 56.Qb4) 52.Nf7 (52.Kd6 g5 53.Nc6) 52...Kc7 53.Ke7 (53.d8Q Kb7 54.Nd6 Kc6 55.Qa5 g6 56.d4 h6 57.d5) 53...Kc6 54.d8Q Kb5 55.Qd4 Kc6 (55...h6 56.Nd6 Kc6 57.Qc4 Kb6 58.Qb5 Kc7 59.Qb7) 56.Qg7 (56.Qc4 Kb7 57.Nd6 Ka7 58.Qb5 g5 59.Qb7) 56...Kb5 (56...Kb6 57.Qb2 Ka6 58.Nd6 h6 59.Qb5 Ka7 60.Qb7) 57.d4 (57.Nd6 Kb4 58.Qb2 Kc5 59.Qb5 Kd4 60.Qc4 Ke5 61.f4) 57...Kc6 58.d5! White plans d6 58...Kb5 (58...Kd5 59.Qh7 Zwischenzug) 59.d6 (59.Nd6 Kb4 60.Qb2 Kc5 61.Qb5 Kd4 62.Qc4 Ke5 63.f4) 59...Kc4 60.d7 Kc5 (60...Kb3 61.d8Q Kc4 62.Qgd4 Kb3 63.Q8b6 Kc2 64.Qbb2) 61.d8Q Kb4 (61...Kc4 62.Qgd4 Kb3 63.Q8b6 Kc2 64.Qbb2) 62.Qgd4 (62.Qb6 Kc4 63.Qgd4) 62...Kb3 63.Qc8 (63.Q8b6 Kc2 64.Qbb2) 63...Ka3 64.Qb6 Ka2 (64...h6 65.Qca6) 65.Qa8 (65.Qca6) 1-0. fishissushi (1845) - chess_ptr (1900), Rated Classical game, lichess.org, 2019.

6.Nf3 Nc6 7.cd5 ed5 8.Be2 Be6 9.Qc1 Bb6 10.0-0 0-0 11.Nc3 Rc8 12.Qb1 a6 13.Ng5 h6 14.Ne6 fe6 15.f4 d4 16.Na4 de3?? (16...Ba7!? 17.Ba3 Rf7–/+) 17.Nb6?? (better is 17.Bf6 Rf6 18.Nb6+–) 17...Qb6= 18.Bf6 Qb1 19.Rab1 Rf6 20.de3 b5 (20...Rc7 21.Bf3+=) 21.Rfc1 e5? (21...Ne7 22.Rc8 Nc8 23.a4+/–) 22.Bf3 (better is 22.fe5 Re6 23.Bf3+–) 22...ef4= 23.ef4 b4? (better is 23...Ne7!? 24.Rc8 Nc8=) 24.Rb4! Nb4 25.Rc8 Kf7 26.a3 Nd3 27.g3 Rd6 28.Rc7 Kf6 29.Be4 Nb2 30.Rc6 Rc6 31.Bc6 a5 32.Kf2 Nd3 33.Ke3 Nc5 34.g4 g5 35.f5 Ke5 36.h3 Nb3 37.Kd3 Nd4 38.a4?? Nc6–+ 39.Kc4 Kf4 40.Kc5? Nb4 41.f6+= Ke5?? 42.f7+– Nd5 43.f8Q Nf6 44.Qf6! Kf6 45.Kb5 h5 46.Kc5 hg4= 47.hg4 Ke5 48.Kb5 Kf4 49.Ka5 Kg4 50.Kb5 Kf4 51.a5 g4 52.a6 g3 53.a7 g2 54.a8Q g1Q 55.Qf8 Ke3?? 56.Qc5+– (56.Qc5 Ke4 57.Qg1+–) 1–0. orangutanb4 (1985) – sunwukong2012 (1710), 2012.

6.Qa4 Bd7–/+ 7.Bb5 Nd5 0–1. vampierketjen – clochard (2120), net–chess.com, 2003.

6.de6!? Be6 7.Qf3 =.

5.c4 0-0 6.Qb3 Bd6 7.Nf3 Nc6 8.cd5 Nd5 9.a3 b6 (9...Re8 10.0-0-/+) 10.0-0 Bb7 11.d3 Na5 12.Qc2 Qe7 (12...c5 13.Nbd2-/+) 13.Nbd2 (13.e4 Nf4 14.e5 Bc5=+) 13...c5-/+ 14.Rfc1 Rac8 15.Ne4 Bb8 16.Ng3 (16.Rab1 f5 17.Ned2 Nc6-/+) 16...Nc6 17.Nd2 (17.Ne4 Rfd8-/+) 17...Nf6 (17...f5 18.Bf3-/+) 18.Nc4 Ba6 19.Bf3 Bc4 20.dc4 Rfd8 21.Rd1 Rd1 (21...Ne5 22.Qe2-/+) 22.Rd1 Ne5 23.Be2 Rd8 24.Ne4 (24.Rd8 Qd8 25.f4 Ng6=+) 24...Ne4 25.Qe4 Rd1 26.Bd1 Ng6 (26...Qd6 27.Bc2 f5 28.Qb7-/+) 27.Bf3 h6 28.g3 Qc7 29.Bh5 Kh7 (29...Ne7 30.Bf3=+) 30.Qd3 (30.Bg6 fg6 31.Qe6 a6+=) 30...Kg8 (30...Qd6 31.Qc2=+) 31.Qe4 (31.Bg6!? fg6 32.Qg6=) 31...Ne5=+ 32.f4 Ng6?? (better 32...Nd7=+) 33.Bg6+/- fg6 34.Qe6 (34.Qg6?! Qd7=) 34...Qf7 (34...Kh7 35.Be5 Qd8 36.Qd5+/-) 35.Qc8+- Qf8 36.Qe6 (36.Qb7!?+/-) 36...Kh7 (36...Qf7 37.Qd5+/-) 37.Qd5 (37.e4 Qd8 38.Qd5 Qe7+=) 37...Qd6 (37...Qf5!? 38.e4 Qg4=) 38.Kg2 (38.Be5 Qf8 39.Qa8 Bd6 40.Qf8 Bf8+-) 38...Qd5 (38...Qe7!? 39.e4 a6+=) 39.cd5+/- Bd6 (39...b5 40.Kf3+/-) 40.e4+- Kg8 41.Kf3 Kf8 (better 41...c4+-) 42.e5 Bc7 (42...Bb8 43.d6 Kf7 44.Ke4+-) 43.Ke4 (43.d6 Bd8+-) 43...Bd8 (43...Ke7 44.d6 Bd6 45.ed6 Kd6 46.g4+-) 44.d6 Ke8 45.Kd5 Kd7 (45...Kf8 46.e6 b5+-) 46.e6 Kc8 47.Bg7 (47.Kc6 Bh4 48.e7 a6 49.e8Q Bd8 50.Qd7 Kb8 51.Qb7) 47...Bf6 48.Bf6 (48.Kc6 Bg7 49.e7 Bf6 50.d7 Kb8 51.d8Q) 48...Kb7 (48...a6 49.Kc6 Kb8 50.d7 Ka7 51.e7 c4 52.d8Q c3 53.Qb6 Ka8 54.e8Q) 49.e7 Ka6 (49...g5 50.e8Q Ka6 51.Qd7 Ka5 52.Qa7 Kb5 53.Bc3 gf4 54.a4) 50.e8Q (50.e8Q h5 51.Qa4 Kb7 52.Qd7 Ka6 53.Kc6 c4 54.Qb7 Ka5 55.Qa7) 1-0. ClayPigeons (2150) - arazan (1915), Rated Classical game, lichess.org, 2020.

5.c4 dc4 6.Bc4 Be7 7.Nf3 0-0 8.0-0 b6 9.d4 Bb7 10.Nbd2 c5 11.Bd3 (11.Qe2 cd4 12.Nd4 Nc6=+) 11...cd4 12.ed4 (12.Nd4 Na6-/+) 12...Nc6 13.Qb1 Nb4 14.Be2 (14.Ba3 Nd3 15.Qd3 Ba3 16.Qa3 Ne4-+) 14...Nbd5 15.a3 Nf4 16.Bd1 (16.Qd1 Rc8-+) 16...Qd7 (16...Ba6 17.Re1-+) 17.g3 (17.Re1 Rac8-+) 17...Ng6 18.Bc2 Qd5 19.Re1 Rac8 20.Bd3 Bd6 (better 20...Rc7-+) 21.Bc4?? (better 21.Ne4 Nd7 22.Nd6 Qd6 23.Ne5-/+) 21...Rc4-+ 22.Nc4 (22.Qd1 Rc7-+) 22...Qc4 (better 22...Qf3 23.d5 Bd5 24.Qe4 Ne4 25.Re4 Be4 26.Kf1 Bd3 27.Kg1 Nf4 28.gf4 Qg4 29.Kh1 Be4 30.f3 Bf3) 23.Qd1 Qd5 24.Re3 Ng4 25.Rd3 Ne7 (25...Qb5 26.Rb3 Qh5 27.Rc1-+) 26.Rc1 Nc6 (better 26...Qh5-+) 27.Nh4 (27.Rdc3 Nf6 28.Qb3 Na5 29.Qd5 Nd5-+) 27...Na5 (better 27...Nce5 28.f3 Nd3 29.Qd3-+) 28.Nf3 (28.f3 Nh2! 29.Kh2 Qg5-+) 28...Nc4 29.h3 (29.Rc2-+) 29...Nb2 30.Qc2 Nd3 31.Qd3 Qf3 (better 31...Ne5 32.de5 Qd3-+) 32.Qf3 Bf3 33.hg4 Bg4 34.Re1 (34.a4 Bf3-+) 34...Bf5 35.Kh2 (35.Re3 Rc8-+) 35...Rc8 36.Kg2 Ba3 37.Re2 Bb4 38.f4 a5 39.Kf3 Rc2 40.g4 Rc3 (better 40...Bg4 41.Kg4 Re2 42.f5-+) 41.Kf2 Bd3 (41...Bg4!? 42.Re5-+) 42.Rd2 Rc2 43.Rc2 Bc2 44.Ke3 Bb3 45.f5 Bd5 (better 45...a4 46.f6-+) 46.fe6 Be6 (46...fe6 47.Kd3-+) 47.Kf4 Bd5 (47...a4 48.d5 Bd7 49.Ke5 a3 50.Kf4 Bd6 51.Kf3 a2 52.Ke3 a1Q 53.Kf3 Qc3 54.Kf2 Qd2 55.Kf3 Bb5 56.Ke4 Qd3) 48.Ke5 Bc4 49.g5 b5 50.g6 hg6 51.d5 Bd5! 52.Kf4 (52.Kd5 a4 Passed pawn) 52...a4 53.Ke3 a3 54.Kd4 a2 55.Ke5 (55.Ke3 a1Q 56.Kf4 Qf6 57.Ke3 Qf3 58.Kd4 Qe4) 55…a1Q (55...a1Q 56.Kd5 Qc3 57.Ke4 f5 58.Kd5 Qc4 59.Ke5 Qe4; 55...Bb7 56.Kf4 a1Q 57.Kg3 Qg1 58.Kh3 Qg2 59.Kh4 Be7) 0-1. ClayPigeons (2115) - Victor_Viageiro (2095), Rated Classical game, lichess.org, 2021.

6.0-0 Nc6 7.a3 Ba5 A) 8.Kh1 a6 (8...Bd7 9.Ne5 Ne5 10.Be5 Ne4 11.d3–/+; 8...Qe7 9.Ne5 Ne5 10.Be5 Nd7 11.Bc3–/+; 8...Rb8 9.Nd4 Qe7 10.Nc6 bc6 11.Be5–/+) 9.Qe1 Qe7 10.Ne5 Ne5 11.Be5–/+; B) 8.Nc3 Qe7 (8...Re8 9.d4 a6 10.Bd3 b5 11.Rb1–/+; 8...e5 9.Na4 Qd6 10.d4 e4 11.Ne5–/+; 8...a6 9.Re1 e5 10.Na2 Qd6 11.Nc1–/+) 9.Ng5 e5 10.Nf3 Re8 11.Bb5–/+; C) 8.Qc1 Re8 (8...Qe7 9.c4 Rd8 10.cd5 Nd5 11.Nc3–/+; 8...a6 9.c4 dc4 10.Qc4 Re8 11.Qf4+=; 8...Bd7 9.Ra2 Re8 10.Ne5 Ne5 11.Be5–/+) 9.Ne5 Ne5 10.Be5 Nd7 11.Bc3–/+.

6.0-0 Nc6 7.a3 Bc5 A) 8.Nc3 e5 (8...a6 9.d4 Bd6 10.Bd3 b5 11.e4–/+) 9.d4 ed4 10.ed4 Bd6 11.Bc1–/+; B) 8.Re1 Bd6 (8...a6 9.d4 Bd6 10.Ne5 Bd7 11.Nd2–/+; 8...Re8 9.d4 Bd6 10.Nbd2 Ne4 11.Ne4–/+; 8...Be7 9.Ra2 Bd6 10.Nc3 a6 11.Ra1–/+) 9.Nc3 a6 10.Rb1 Qe7 11.a4–/+; C) 8.d4 Be7 (8...Bd6 9.Nbd2 a6 10.c4 b6 11.Rc1+=) 9.Nbd2 a6 10.Ne5 Ne5 11.de5–/+.

6.0-0 Nc6 7.a3 Bd6 8.d4 (8.Nc3 a6 9.d3 e5 10.Qd2 b5 11.Rfb1–/+; 8.c4 Rb8 (8...a6 9.cd5 Nd5 10.Qc2 e5 11.d4–/+; 8...Bd7 9.d4 dc4 10.Bc4 Re8 11.Ne5–/+; 8...dc4 9.Bc4 Na5 10.Be2 c5 11.d4–/+) 9.cd5 ed5 10.Nc3 a6 11.Qa4–/+) 8...Re8 (8...a6 9.Ne5 Bd7 10.c4 dc4 11.Bc4–/+; 8...Rb8 9.Nbd2 b5 10.a4 b4 11.Rb1–/+; 8...Ne4 9.Nbd2 Qf6 10.Rb1 Nd2 11.Qd2–/+; 8...Bd7 9.Nbd2 Qe7 10.c4 b6 11.Ne5+=) 9.Qd3 (9.Nbd2 e5 10.de5 Ne5 11.Ne5–/+) 9...e5 10.de5 Ne5 11.Ne5 (11.Be5–/+) 11...Be5 (11...Re5?! 12.Be5 Be5 13.Nc3=) 12.Be5 Re5 13.Nd2 Qe7 14.f4?? (better is 14.Nf3 Rh5 15.Rab1–/+) 14...Re3–+ (14...Re3 15.Qb5 Re2–+) 0–1. camaleandro – garcia2102 (1805), gameknot.com, 2014.

6.0-0 Nc6 7.a3 Be7 A) 8.Qe1 Bd6 (8...a6 9.d3 Bd6 10.c4 dc4 11.dc4–/+; 8...Qd6 9.Nc3 a6 10.Rb1 e5 11.d3–/+; 8...Bd7 9.Qd1 Bd6 10.Nc3 e5 11.Nb5–/+) 9.Nc3 a6 10.Rb1 e5 11.d3–/+; B) 8.Ra2 Bd6 (8...a6 9.Qe1 Qd6 10.d4 b5 11.a4–/+; 8...Qd6 9.d4 a6 10.Nbd2 b5 11.a4–/+; 8...Qd7 9.Re1 Qd6 10.d4 a6 11.Nbd2–/+) 9.Nc3 a6 10.a4 e5 11.Ra1–+; C) 8.Re1 Bd7 (8...Qd6 9.d4 a6 10.a4 Ne4 11.Ba3–/+; 8...a6 9.d4 Qd6 10.a4 Ne4 11.Ba3–/+; 8...Bd6 9.Nc3 a6 10.Rb1 e5 11.d3–/+) 9.Ra2 Bd6 10.Nc3 a6 11.Ra1–/+.

5.a4 0-0 6.Bd3 c5 7.0-0 c4 8.Be2 Bd7 9.Ne5 Nc6 10.Ng4 (10.d3 cd3 11.cd3 Rc8–/+) 10...Ng4–+ 11.Bg4 e5 12.f4 Bg4 13.Qg4 f5 14.Qg3 Qf6 (14...Qa5 15.Rd1–/+) 15.fe5 Qe6 16.d4 a5 (16...Rae8 17.Ba3+=) 17.c3= Be7 18.Rf4 (18.Ba3 Rab8=) 18...Nd8 19.Nd2 Nf7 20.Nf3 Nh6 21.Ng5 (21.Ba3 Ba3 22.Ra3 Rae8=) 21...Bg5 (21...Qg6 22.h4+=) 22.Qg5= Qg6 (22...b5 23.Ba3 Rfb8 24.Bd6=) 23.Qh4 (23.Qg6!? hg6 24.Ba3+/–) 23...Ng4 (23...Qc6 24.Qh5=) 24.Bc1 Rab8 25.Ba3 Rf7 26.Bd6 (26.h3 Nh6+/–) 26...Rc8 (26...Ne3 27.Rf2 Re8 28.Qf4=) 27.Qg3 Nh6? (better is 27...Re8!?+=) 28.Qg6+/– hg6 29.Rb1 Ng4 30.Rf3 Rc6 (30...Rd7 31.Rb5 Nf6 32.ef6 Rd6 33.Rb7 gf6 34.Rg3+/–) 31.h3 (31.Rb5!? b6+–) 31...Nf6+/– 32.Bc5?? (better is 32.e6!? Rd6 33.ef7 Kf7 34.Rb7 Rd7 35.Rb5+/–) 32...Nd7 33.Ba7+= b5?? 34.ab5+– Rc7 35.b6 Rb7 36.e6 Re7 37.ed7 Red7 38.Rb5 a4 39.Rf2 Kf7 40.Ra2 g5 41.Ra4 f4 42.ef4 gf4 43.Rc5 Ke6 44.Kf2 g5 45.Ra1 Kf5 46.Re1 g4 47.Re5 Kf6 48.hg4 Rg7 49.Rf5 Kg6 50.Rcd5 1–0. Willi_weizenkeim – Sarx, playchess.de, 2005.

5.Bb5 Nc6 6.Ne5=+ 0-0?? 7.Nc6?? bc6=+ 8.Bc6 Rb8 9.Ba3?? Ba3–+ 10.Na3 Rb6?? 11.Bb5–/+ Ba6 12.Ba6 Ra6 13.Qc1 Qd6 14.Nb1 Ng4 15.g3 Qe5 16.Nc3 Qf6 17.f4 e5?? 18.Nd5= Qd6 19.Nc3 Rd8 20.d3 Qc6–/+ 21.Ne4 Nf6?? 22.Nf6+= gf6 23.Rf1 Qg2 24.Qd2+/– Qd2 25.Kd2 Rd5 26.fe5 fe5+/– 27.e4 Rd4 28.Rg1 Rad6 29.h4 c5 30.h5 c4 31.h6 cd3–/+ 32.Rab1 f6?? 33.Rb8 Kf7=+ 34.Rb7 Kg6 35.Rh1 dc2–/+ 36.Kc2 Rd2 37.Kb3 R6d3 38.Kc4 Rd4 39.Kc3=+ R4d3 40.Kc4–/+ Rd4 41.Kc3= ½–½. guest889 – guest250, ICC, 1999.

5.c3 Bd6 6.Bb5 Bd7 7.Bd7 Nbd7 8.d4 0-0 9.0-0 c5 10.Nbd2 c4 11.Ng5 h6 12.a3?? (better is 12.Ngf3–+) 12...hg5 13.f3 b5 14.g3 a5 15.e4 e5 16.a4 b4 17.g4 (17.Rc1 ed4 18.cd4 c3–+) 17...ed4 18.cd4 c3 19.Bc1 (19.e5 cb2 20.Rb1 Ne5 21.de5 Be5–+) 19...cd2 20.Qd2 Bf4 21.Qg2 Rc8 (21...Bc1!? 22.Rac1 de4 23.fe4–+) 22.Bf4 gf4 23.h3 (23.e5 Nh7–+) 23...b3 (23...de4 24.fe4 Nb6 25.d5–+) 24.Rab1 Rc2 25.Qh1 (25.Rf2 Rf2 26.Qf2 de4 27.g5–+) 25...Qb6 26.Rb3 Qd4 27.Rf2 Qf2 0–1. jmcauley (1800) – geldridge (2320), net–chess.com, 2013.

5.Bc3 Be7 6.Bb5 c6 7.Be2 0-0 8.0-0 b5 9.a3 Bb7 10.Bb2 Nbd7 11.d3 c5 12.a4 b4 13.Ne5 Qc7 14.Nd7 Nd7 15.c3 Bf6 16.Qc2 Rac8 17.c4 Bb2 18.Qb2 dc4 19.dc4 Qe5 20.Ra2 a5 21.Nd2 Qb2–+ 22.Rb2 Nb6 23.Ra1 Rfd8 24.Nb3 Rc7 25.Na5=+ Rcd7 26.Nb7 Nc4?? 27.Nc5 Nb2 28.Nd7 Rd7 29.Rb1 Nd3 30.Rd1 Nc5+= 31.Rb1 b3= 32.g3 Rd2 33.Bc4 b2= 34.a5 Rc2 35.Ba2? Rc1 36.Kg2= Rb1 37.Bb1 Kf8 38.Kf3 Ke7 39.Ke2 Kd6 40.Kd2 Nb3 41.Kc3 Na5 42.Kb2 Nc4 43.Kc3 Ne5 44.h3 f5 45.f4 Nf7 46.Kd4 (46...g6 47.e4+=). chrisalvin2005 (1630) – fiddler, chessHere.com, 2006.

5.Nc3 c5 6.Bb5 Bd7 7.Ne5 (7.Qe2 Nc6–/+) 7...a6 8.Bd7 Nbd7 9.Ne2 (9.Nd7 Qd7 10.0-0 0-0–/+) 9...0-0 (9...Ne4 10.Nf3–/+) 10.0-0 c4 11.a3 Bd6 12.f4 (12.Nd7 Nd7 13.f4 g6–/+) 12...Nc5 (12...Be5 13.fe5 Ng4 14.Qe1 Nge5 15.Qg3–+) 13.d3–/+ b5 14.Nd4 Qb6 15.Rf3 (15.Ndf3!?–/+) 15...Na4–+ 16.Bc1 Rfc8 (16...cd3 17.cd3 Be5 18.fe5–+) 17.Bd2 c3 18.Be1 (18.Bc1–/+) 18...Rc7 (18...Be5 19.fe5 Ng4 20.Rf4 Ne5 21.Qh5–+) 19.Bh4 (19.Rg3!?–/+) 19...Be5–+ 20.fe5 Ng4 21.Bf6?? (better 21.Qe2 Ne5 22.Rh3–+) 21...gf6 (better 21...Ne3 22.Re3 Qd4–+) 22.Rg3 f5 (better 22...h5 23.Rg4 hg4 24.Qg4 Kf8 25.ef6 Nc5–+) 23.h3–/+ h5 24.hg4 fg4 (24...f4 25.Rh3 fe3 26.Ne2 hg4 27.Rh4=+) 25.Qe2? (25.Qf3 f5 26.ef6 Qd6=+) 25...Qb8 (25...Rac8 26.Rf1 Nc5 27.Qf2+–) 26.Rf1 (better 26.Kf2 Rc8 27.Rg4 Kf8 28.Rg8 Ke7 29.Nc6 Rc6 30.Rb8 Rb8 31.Qh5+–) 26...Qd8?? (better 26...Nc5–/+) 27.Rf6+= Nc5 28.Qf2 (28.Qf3 Qf8 29.Qf4 Qg7+–) 28...Nd7= 29.Rh6 Qh4?? (29...Qg5 30.Qf4 A) worse 30...Qe5 31.Ne6 Qf4 32.Nf4+– (32.ef4?? fe6 33.Rh5 Nf6–+); B) 30...Qf4 31.ef4 Re8=) 30.Qf4+– Re8?? (30...Nf8 31.Nf3 Qg3 32.Qg3 Ng6+–) 31.Nf3 Qd8 32.Rh5 Nf8 (32...Kf8 33.Rh7 Ne5 34.Ne5 Qf6 35.Qf6 b4 36.Rh8) 33.Rg4 Ng6 (33...Qg5 34.Qg5 Ng6 35.Qf6 Kf8 36.Rg6 b4 37.Rh8) 34.Qh6 b4 (34...Qg5 35.Ng5 Rb7 36.Ne4 f6 37.Qh8 Kf7 38.Rh7) 35.Nh4 (35.Qh8) 35...b3 (35...Qg5 36.Rgg5 f5 37.Rg6 Rg7 38.Qg7) 36.Qh8 1–0. janpor (1620) – danielcraciun (1745), gameknot.com, 2015.

5.Nc3 Be7 6.Bb5 c6 7.Ba4 b5 8.Bb3–/+ c5 9.a3? c4–+ 10.Ba2 0-0 11.Nb5–/+ a6 12.Nbd4 Nbd7 13.d3 e5 14.Nf5 e4 15.Ne7 Qe7= 16.Nd4 Ne5=+ 17.de4 Ne4 18.0-0 Bf5?? 19.Bb1 c3 20.Bc1 Nc4?? 21.Nf3?? Bg4–/+ 22.h3 Bf3–+ 23.Qf3 f5 24.Qe2 Ned2 25.Bd2 Nd2 26.Rd1 f4 27.Rd2 cd2 28.Qd2 fe3 29.Qe3 Qe3 30.fe3=+ Rae8 31.Ba2 Re3 32.Bd5 Kh8 33.Kh2 Re2 34.Ra2 g6 35.Bc4=+ Rd2 36.Ba6 Rff2 37.Bb7 Rf1 38.a4= Rdd1? 39.a5+/– Rh1 40.Kg3+– Rd8?? 41.a6 Re1 42.a7 Re7 43.a8Q Ra8 44.Ba8 Re3 45.Kf2 Rc3 46.Be4 Kg7 47.Ra6 h5 48.Bd3 Kf7 49.g4 hg4 50.hg4 Kg7 51.Rg6 Kf7 52.Rg5 Kf6 53.Rb5 Rc8 54.g5 Kg7 55.g6 Rf8 56.Kg3 Re8 57.Rb7 Kg8 58.g7 Rc8+– 59.Rd7 Rc5 60.c4 (60...Rg5 61.Kf4 Rg7 62.Rg7 Kg7 63.Ke5+–; better is 60.Kf4 Rc6+–) 1–0. Nautiluschess – baezaus, ICS blitz, 2001.

5.c4 dc4 6.Bc4 Be7 (6...0-0 7.0-0–/+) 7.0-0 0-0 8.d4 a6 9.Qc2 (9.Ne5 b5 10.Qf3 Ra7–/+) 9...Bd7 (9...Nc6 10.Ba3–/+) 10.a4 (10.Rc1 Nc6=+) 10...b6 (10...Nc6 11.Nc3–/+) 11.Nbd2 (11.Ba3 Nc6=+) 11...Bc6 (11...Nc6 12.Rfc1=+) 12.Ne5 (12.Rfc1 Bb4=+) 12...Bb7 13.Bd3 h6 (13...Bd6 14.Rfc1=+) 14.Rac1 (14.Rfc1 c5=) 14...Nd5 15.Bh7 Kh8 16.Be4 Bd6 17.Ndc4 Nb4 18.Qb1 Be4 19.Qe4 Nd7 (19...Ra7 20.Qf3 Be5 21.Ne5=) 20.Nd6 (20.Ba3 a5=) 20...cd6 21.Ng6? (better 21.Ba3 de5 22.Bb4=) 21...Kg8?? (better 21...fg6 22.Ba3 d5 23.Qg6 Qe7–+) 22.Nf8+– Nf8 (22...Qf8 23.Ba3 d5 24.Qb1+–) 23.d5 (better 23.Ba3!? a5 24.Qb1+–) 23...Nd5+= (23...ed5?? 24.Qb4 b5 25.Rfd1 ba4 26.Rd5+–) 24.Rc6 Nf6 (24...Nh7 25.Qd4 Nhf6 26.e4+–) 25.Qf3 (25.Bf6 Qf6 26.Rd6 Rb8+–) 25...Nd5 (25...Ne8 26.Ba3+–) 26.Qg3 e5 27.f4 (27.Ba3 Qe8 28.Rfc1 Rd8+–) 27...Qd7 (27...Nb4 28.Rc3 Nd7 29.fe5 Ne5 30.Rd1+=) 28.Rfc1 Ne6 (28...Ng6 29.fe5 de5 30.Be5 Ne5 31.Qe5+=) 29.fe5 (29.Qf3 Ne7 30.Rd6 Qd6 31.Qa8 Nf8 32.Be5 Qd2+–) 29...de5 30.Be5 Kh7?? (better 30...f6 31.Rd6 Qa4 32.Bf6 Nf6 33.Re6 Qa3+–) 31.Rd6+– Qb7 0–1. GuestLGLT – GuestWYFB, freechess.org, 2016.

5.c4 c5 6.a3 Ba5 7.cd5 ed5 8.Be2 Nc6 (8...0-0 9.0-0–/+) 9.0-0 (9.Qc2 c4–/+) 9...0-0 10.d3 (10.Qc2 c4–/+) 10...b5 (10...Re8 11.Nc3–/+) 11.Nbd2 Be6 12.Rc1 Qd6 13.Bf6=+ gf6 14.a4 b4 15.Nb3 Bb6 16.Qc2 Rfc8 17.Nc5 Bc5 18.Qc5 Qc5 19.Rc5 Rab8 20.d4 b3= 21.Bd3 Rb4 22.Rb1 Ne7 23.Nd2 b2= 24.Kf1 Rc5 25.dc5+= Bf5 26.Bf5 Nf5 27.a5 Ne7 28.Ke1 Nc6 29.a6 Kf8 30.Kd1 Rb5 31.e4 d4 32.Nc4 Rc5 33.Nb2= Ra5 34.Nc4 Ra6 35.Ke2 Ra2 36.Rb2 Rb2–/+ 37.Nb2 Ke7 38.Kd3 Kd6 39.f4 Kc5 40.g4 a5 41.h4 Nb4 42.Kd2 Kb5 43.Nd3 a4 44.Nc1 a3 45.Nb3 a2 46.Na1 Kc4 47.h5 d3 (48.g5 Nc2–+) 0–1. Rush,Bradley – Mark,Kevin, IECG, 1995.

5.Bd3 0-0 –/+.

5.Bd3 Nc6 6.0-0 Bd7 (6...Bd6 7.Bb5–/+) 7.a3 Bd6 8.Nc3 (8.Bb5 0-0–/+) 8...Qe7 (8...e5 9.e4 d4 10.Nd5–/+) 9.Qe2 0-0-0 10.Nb5=+ e5 11.Nd6 Qd6 12.c3?? e4–+ 13.Be4 de4 (14.Nd4 Ne5–+; 13...Ne4?! 14.d3 Nc5 15.Rab1–+) 0–1. Davis,D – Patterson,S, IECG, 1996.

5.Bd3 Nbd7 6.0-0 0-0 7.Nc3 c6 8.Ne2 Bd6 9.Ng3 Qc7 10.c4 b6 11.cd5 cd5 12.Rc1 Qb8 13.Qc2 Bb7 14.Ng5 h6 15.Nh7 Nh7 16.Bh7 Kh8 17.Bd3 Rc8 18.Qa4 Nc5 19.Qh4 Be5–/+ 20.Be5 Qe5 21.Be2 Ne4 22.Qe7= Bc6 23.Ne4 de4 24.Qf7 Bd5 25.Rc8+= Rc8 26.Qa7 Rc2 27.Qb6 Rd2= 28.Qd8 Kh7 29.Bc4 Bc4 30.Qd2 Bf1 31.Kf1 Qh2 32.g3 Qh1 33.Ke2 Qf3 34.Kf1 Qh1 ½–½. Whiterose – dannyboy238, ChessWorld.net, 2006.

5.Bd3 Be7 6.0-0 c5 7.Nc3 c4 8.Be2 a6 9.d3 b5 10.a4 (better 10.dc4!? bc4 11.e4-/+) 10...b4-+ 11.Nb1 c3 12.Bc1 a5 13.e4 (13.Ne5 Qd6 14.Ng4 Ng4 15.Bg4 0-0-+) 13...de4 14.de4 Qd1 15.Rd1 Ne4 16.Bb5 Bd7 17.Nd4 Nc5 (17...Bc5 18.Be3 Bb5 19.Nb5 Be3 20.fe3-+) 18.Bf4 (18.Be2 0-0 (18...Na4 19.Nb5 b3 20.Nc7 Kf8 21.Rd7 Nd7 22.Na8 bc2 23.Na3=+) 19.Bf3 Ra6-+) 18...Bb5 19.Nb5 Nba6 20.N1c3 bc3 21.Nd6 (21.Be5 0-0-+) 21...Bd6 22.Bd6 Rd8 (22...Ne4 23.Be5 Nb4 24.Rac1-+) 23.Bc5 (23.Be5 0-0 24.Bc3 Rd1 25.Rd1-+) 23...Rd1 24.Rd1 Nc5 25.Rd6 (25.Rd4 Ke7 26.Kf1 Rd8-+) 25...Ke7 26.Rc6 Rd8 27.g3 Na4 28.Rc4 Nb6 (28...Rd1!? 29.Kg2 Ra1 30.h3-+) 29.Rc3 Rc8 30.Ra3 a4 31.c3 Rc4 32.Kg2 (32.Kf1 e5-+) 32...Nd5 33.Kh3 (33.Kf1 Nc3 34.f4 f6-+) 33...Nc3 34.f4 (34.Kg2 Nb5 35.Ra2 a3-+) 34...Kd6 35.f5 (35.Kg2 Kc5 36.Kf2 Kb4-+) 35...Kc5 36.fe6 fe6 37.Ra1 Kb4 38.Re1 (38.Kg2 a3 39.h3 a2-+) 38...a3 39.Re6 (39.Rf1 e5-+) 39...a2 40.Re8 Ka3 (better 40...a1Q 41.Rf8-+) 41.Rb8 Na4 (41...a1Q 42.Ra8 Na4 43.Rf8 Qg1 44.Rf7 g5 45.Rf3 Kb4 46.Rf4 Rf4 47.gf4 h5 48.fg5 Qg4) 42.Rh8 a1Q 43.Rh7 (43.Rf8 Qg1 44.Rf3 Kb2 45.Rf8 g5 46.Rb8 Kc3 47.Rf8 Rh4 48.gh4 g4) 43...Qf6 (43...Qf1) 44.Rh4 (44.Kg2 Rc2 45.Kh3 Qe6 46.Kh4 Rc4 47.Kg5 Qg4) 44...Rg4! 45.Rg4 (45.Kg4 g6 Combination; 45.Rg4 Qe6 Decoy) 45...g5 (45...Qe6 46.Kg2 Qg4 47.Kf2 Nc3 48.Kg2 Qe4 49.Kf2 Qe2 50.Kg1 Qf3 51.h4 Ne2 52.Kh2 Qg3 53.Kh1 Qg1) 46.Kg2 (46.Ra4 Ka4 47.Kg4 Qh6-+) 46...Qf5 (46...Nc3 47.Rc4 Nd1 48.Rc1 Ne3 49.Kg1 Qb2 50.Ra1 Kb3 51.Rb1 Qb1 52.Kf2 Ng4 53.Kf3 Qf5 54.Ke2 Kc2 55.h4 Qf2) 47.Rd4 g4 (better 47...Qc2!? 48.Kh3-+) 48.Rf4 Qd3 49.h3 (49.Rf8 Qd5 50.Kg1 Nc3-+) 49...gh3 (49...Qe2 50.Kg1 gh3 51.Rf2 Qe1 52.Kh2 Qf2 53.Kh3 Nc3 54.Kg4 Ne4 55.Kh5 Qf5 56.Kh6 Qg5 57.Kh7 Nf6 58.Kh8 Qh6) 50.Kh3 Nc3 51.Kg4 Ne2 (better 51...Nd5-+) 52.Rf3= Qf3 53.Kf3 Ng3 ½-½. LUISJAVIERLP (2230) - luis_alfredop (2220), Rated Bullet game, lichess.org, 2015.

5.Nd4 Bd6 6.Bd3 0-0 7.Qf3 c5 8.Nb5–/+ a6 9.Nd6= Qd6 10.Bf6 e5 11.Bh4 e4+= 12.Be4 de4 13.Qe4 Nc6 14.Nc3 Qe5? 15.Qe5+– Ne5 16.Be7 Re8 17.Bc5 Bf5 18.e4 Be6? 19.0-0 Rac8 20.Bd4 Ng6 21.f4 Bd7 22.f5 Ne5 23.Be5 Re5 24.d4 Ree8 25.Rf3 Rc4 26.f6 gf6? 27.Nd5+– Re7?? 28.Ne7 (28...Kf8 29.Nd5+–) 1–0. rabelloenter (1960) – tomy (2115), net–chess.com, 2006.

5.Nd4 e5 6.a3 Bd6 7.Nb5 –/+.

5.Be2 a6 6.0-0 Be7 7.c4 c6 (7...dc4 8.Bc4 b5 9.Be2–/+) 8.cd5 ed5 9.Qc2 0-0 (9...Nbd7 10.Nc3–/+) 10.Nc3 (10.Bf6 Bf6 (worse 10...gf6 11.d4=) 11.d4 Re8=+) 10...Nbd7 11.d4 Re8 12.a4 Nf8 (12...Rb8 13.Ba3–/+) 13.Bd3 h6 (13...Bg4 14.Ne5–/+) 14.Ne5 (14.Ba3 Bg4=+) 14...Bd6–/+ 15.f4 Bg4 (15...c5 16.dc5 Bc5 17.Nd1–/+) 16.h3 Bh5 17.g4 (17.Rae1 Bb4–/+) 17...Bg6! 18.Bg6 (18.Bg6 Ng6 Decoy; 18.Ng6 Re3 Pinning (18...Re3 Deflection)) 18...fg6 (18...Ng6 19.Ba3–/+) 19.Qb3 (19.Ba3 Rb8–/+) 19...Qc7 (19...Ra7 20.Ba3=+) 20.Rac1 Ne4?? (better 20...Rad8=+) 21.Nd5!+– Qd8 (21...cd5 22.Qd5 Double attack (22.Rc7 Pinning; 22.Rc7 Deflection; 22.Rc7 Clearance)) 22.Nf6 Kh8 23.Nf7 (23.Qg8) 1–0. GuestRKXC – GuestPGZJ, freechess.org, 2019.

5.Be2 c5 6.0-0 0-0 7.c3 Ba5 8.Na3 a6 9.d4 cd4 10.cd4 b5 11.Rc1 Nbd7 12.Rc2 Re8 13.Qd3 Bc7 14.Rfc1 e5?? 15.de5 Ne5=+ 16.Qc3 Nf3 17.Bf3=+ Be5 18.Qb3 Bb2 19.Qb2 Be6 20.Rc7 Rc8 21.Rc8 Bc8 22.Nc2 Be6 23.Nd4 h6 24.Nc6 Qd7 25.Ne5 Qb7 26.Rc3 a5 27.Qc1 Rc8 28.Nc6 Kh8 29.Nd4 Rc3=+ 30.Qc3 b4 31.Qc6 Qa7 32.Ne6= fe6 33.Qc8 Kh7 34.Qe6 Qc5 35.h3 Qc2–+ 36.Bg4 Qa2?? 37.Bf5+= Kh8 38.Qc8 Ng8 39.Be6 Qa1?? 40.Kh2+– Qe5 41.g3 Kh7 42.Qg8 Kg6+– 43.Qf7 Kh7 44.Bf5 (44...Qf5 45.Qf5 Kh8 46.Qd5+–) 1–0. kehrsam – Bull_Dog_Baz, ChessWorld.net, 2007.

5.Be2 Bd6 A) 6.Nc3 a6 (6...Bd7 7.0-0 a6 8.Nb1 0-0 9.Be5 Nc6 10.Bd6 cd6 11.c3–/+) 7.d3 0-0 8.0-0 e5 9.Qd2 b5 10.Nd1 Qe7 11.c4–+; B) 6.0-0 0-0 (6...Nbd7 7.c4 0-0 8.d4 dc4 9.Bc4 a6 10.Bd3 b5 11.e4–/+) 7.Be5 c5 8.d4 Nc6 9.Bb5 Ne4 10.Bd6 Qd6 11.a3–/+.

5.Be2 Bd7 A) 6.Ne5 0-0 (6...Bd6 7.0-0 0-0 8.Nd7 Nbd7 9.Nc3 c6 10.f4 b5 11.Rb1–/+) 7.0-0 Bd6 8.Nd7 Nbd7 9.Nc3 c6 10.f4 b5 11.a3–/+; B) 6.0-0 0-0 (6...Nc6 7.a3 Be7 8.Ne5 Ne5 9.Be5 0-0 10.Nc3 a6 11.a4–/+) 7.Ne5 Bd6 8.Nd7 Nbd7 9.Nc3 c6 10.f4 Qc7 11.Rb1–/+.

5.Be2 Nbd7 A) 6.a3 Bd6 (6...Be7 7.Ra2 0-0 8.0-0 Bd6 9.d4 a6 10.Ne5 c5 11.c4–/+) 7.Nc3 a6 8.0-0 0-0 9.Qb1 e5 10.a4 c5 11.Qa2–+; B) 6.0-0 0-0 (6...Bd6 7.c4 0-0 8.d4 b6 9.Nc3 c6 10.Qa4 Qc7 11.Ba3–/+) 7.Nc3 e5 8.a3 Be7 9.Rb1 a6 10.d4 e4 11.Nd2–/+.

5.Be2 Bf8 6.0-0 g6 7.Nc3 Bg7 8.Ne5 0-0 9.f4 c6 10.Qe1 Nbd7 11.Ba3 Re8 12.Qg3=+ Ne5 13.fe5 Nd7 14.Bd6 Bf8 15.Qf4 Bd6 16.Qf7+= Kh8 17.ed6 Rf8 18.Qe6+/– Rf1? 19.Rf1+– Nc5 20.Qe5 Kg8 21.e4 de4 22.Ne4 Ne4 23.Bc4 Be6 24.Be6# 1–0. kamret (2235) – mrhappy (1840), GameColony.com, 2003.

5.Ne5 0-0 6.Be2 –/+.

5.Ne5 0-0 6.Qf3 –/+.

5.Ne5 a6 6.a3 Be7 (6...Bd6 7.Bd3–/+) 7.c4 (7.Be2 0-0–/+) 7...0-0 8.g3 (8.Be2 c5–/+) 8...Nbd7–+ 9.Nf3 Nc5 (9...Nb6 10.cd5 ed5 11.d3–+) 10.Qc2–/+ dc4 11.Bc4 b5 12.Be2 h6 (12...Bb7 13.Nc3–+) 13.0-0 (13.Nc3 Bb7–/+) 13...Bb7 14.d3 (14.Nc3 Nd3!–/+) 14...Qd5 (14...Bf3 15.Bf3 Qd3 16.Qd3 Nd3 17.Ba8 Ra8 18.Ra2–/+) 15.Nbd2 (15.Nc3 Qf5 16.e4–/+) 15...Qh5 (15...Na4 16.Be5–/+) 16.Nd4? (16.Bf6!? Bf6 17.Rac1=) 16...Qh3 (better is 16...Ng4 17.Bg4 Qg4–/+) 17.Bf3?? (better is 17.N4f3 Nfd7 18.d4–/+) 17...Ng4 18.Rfe1 Qh2 (18...Qh2 19.Kf1 Qf2#) 0–1. Mane Vila,Albert (1960) – Carbonell Valles,Carlos (1825), Tortosa op, 1996.

5.Ne5 a6 6.Ba3 Ba3 7.Na3 Qd6 –+.

5.Ne5 a6 6.Bd3 Nbd7 –/+.

6.Nc3 0-0 7.Bb5 Ne4 8.Ne4 de4 9.Nd4 e5 10.Nb3 Qf6 11.0-0 Bd7?? 12.f4?? ef4?? 13.Rf4 Qb6?? 14.Qg4?? Bb5 15.Qg7# 1–0. wesolyPolak – flip909, GameColony.com, 2002.

6.Nc3 0-0 7.Bb5 Qe7 8.Be2 –/+.

6.Nc3 0-0 7.Be2 Nbd7 –/+.

6.c4 0-0 7.Be2 dc4 8.Bc4 a6 9.0-0 b5 10.Be2 Nbd7 11.d4 Bb7 12.Nbd2 c5 13.dc5 Nc5 14.Rc1 Rc8 15.Nd4 (15.Bd4!? Qe7 16.Nb3 Nb3 17.Qb3–/+) 15...Na4–+ 16.Ba1 Rc1 17.Qc1 Qd6 18.N2b3 Rc8 19.Qb1 Bc7 20.g3 Qa3 21.Rc1 Nd5 22.Bg4 Nf6 23.Be2 Be4 24.Bd3 Ne8?? (better is 24...Bd3 25.Qd3 Nb2 26.Bb2 Qb2–+) 25.Be4+– 1–0. Wurm,Tamas – Poulsen,Rene (2080), IECG, 2004.

6.Bd3 0-0 7.0-0 c5 –/+.

6.Bd3 0-0 7.Ng5 Nbd7 –/+.

6.Bd3 0-0 7.Ng5 h6 8.Bf6?? Qf6–+ 9.Nh7 Qe7 (10.Nf8 Qf8+=; better is 9...Qa1 10.Nf8 Kf8–+). bayonet attack 1 – chessH, ChessWorld.net, 2002.

6.Bd3 c5 7.0-0 0-0 8.c4 –/+.

6.Bd3 c5 7.0-0 Nc6 8.c4 0-0 9.Nc3 d4 10.ed4 b6 11.dc5?? Qd3–+ 12.cb6 Bb6 13.Re1 Qc4 14.d3 Qc5 15.d4 Qd6 16.Ne4 Qd8 17.Nf6 Qf6 18.Rb1 Nd4 19.Nd4 Bd7 20.Nc6?? Qf2–+ 21.Kh1 Bc6 22.Rg1 Bg2 23.Rg2+/– Qc5?? 24.Rg7 Kh8 25.Rg5 f6+– 26.Rc5 Bc5 27.Qf3 Rad8 28.Bf6 Kg8 29.Qg4 Kf7+– 30.Qg7 Ke8 31.Re1 Rd7 32.Re6 Re7 33.Qg6 Kd8 34.Be7 Be7 35.Rc6 (35...hg6 36.Rg6 Ba3 37.Kg2–+; 35.Qd3 Ke8 36.Qb5 Kf7 37.Qd7 Kg8 38.Re7 Rf1 39.Kg2 a6 40.Qg4 Kf8 41.Qg7#) 1–0. Nautiluschess – pyves, ICS blitz, 2000.

6.Be2 0-0 –/+.

6.c4 Nc6 7.Bd3 e5 (7...dc4 8.Bc4 a6 9.d4–/+) 8.cd5 Nd5 9.Ng1 (9.Be4!? Be6 10.d4 ed4 11.Nd4 Nd4 12.Bd4+=) 9...Be6 10.Nf3 0-0 11.Qc2 a6 (better is 11...f5!? 12.Bb5 Qf6–/+) 12.Bh7+= Kh8 13.Be4 (13.Bf5 Qd7 14.Be6 Qe6=) 13...Qd7 14.Bd5 Bd5 15.Ng5 g6 (better is 15...f5+=) 16.h4?? (16.e4 Nd4 17.Bd4 ed4+=) 16...Kg8?? (16...Bg2!? 17.Rg1 Qg4 18.Nc3 Qh4 19.Nge4–+) 17.h5 (17.e4 Be6+=) 17...Qf5 (better is 17...Qg4 18.Nc3 Bg2–+) 18.Qf5+= gf5 19.h6 Bg2 (better is 19...f6!? 20.Nf3 Kh7+=) 20.Rg1+/– Bd5 21.Nc3 (better is 21.Ne4! Kh7 22.Nf6 Kh6 23.Nd5+/–) 21...Bc4 22.Rc1 (better is 22.Ne6 Kh7 23.Rg7 Kh8 24.Nf8 Bf8 25.Rg5=) 22...Ne7?? (better is 22...Kh8+=) 23.Na4 Bb5 24.Nc3 (24.d4 f6 25.Ne6 Kh7 26.Nf8 Rf8+=) 24...Rfd8 (24...Bc6!?=) 25.Ne6 Kh7 26.Nd8 Rd8 27.Nb5 ab5 28.Rh1 Ng8 29.Ke2 f6 (29...Nh6 30.Rh5 Kg6 31.Rch1+=) 30.Rcg1 (30.Rh5 c6+/–) 30...Bf8 (30...Nh6 31.Rh3+=) 31.Rg2 (31.f4 Rd5+–) 31...Bh6 32.d4 e4 33.Rgh2 (33.Rh5 Ra8 34.f4 c6+/–) 33...Rd6 34.Bc3 Rc6 35.Kd2 f4 36.ef4 f5 37.Rh5 Kg6 38.R5h4 Kf7 (better is 38...Bg7+/–) 39.Rg1?? (better is 39.Rb1+–) 39...Bf8?? (39...Ne7!? 40.Rgh1 Bg7=) 40.Rh5 (better is 40.Rh7 Ke6 41.Rg8 Ba3 42.Re8 Kd5 43.Rf7+–) 40...Ne7+= 41.Bb4 Ra6? (41...Rh6!? 42.Rgh1 Rh5 43.Rh5 Kg6 44.Rg5 Kf6+/–) 42.Be7 (42.Rh7 Ke6 43.d5 Kd5 44.Be7 Be7 45.Re7 Ra3 46.Rc7 Ra2 47.Rc2 Rc2 48.Kc2 b4+–) 42...Be7 43.Rf5 Ke8? (43...Bf6 44.Rb5 Bd4 45.Re1 Ra3 46.Re4+/–) 44.Rb5 (44.Rg8!? Kd7 45.Rg7 Ra8+–) 44...b6 45.Re5 Ra3?? (45...Kf7 46.Re4 Ra3 47.Rb1+–) 46.Re4 (better is 46.Rg7 Kf8 47.Ree7 Rd3 48.Ke2+–) 46...b5?? (46...Kf7+–) 47.Rge1 1–0. pittol – bekind, gameknot.com, 2014.

6.Be2 c6 7.0-0 Nbd7 8.Nc3 0-0 9.Rb1 (9.Nd4 c5 10.Nb3 a6-/+) 9...a5 (9...e5 10.Nh4-+) 10.Na4 (10.Nd4 Qc7 11.f4 b5-/+) 10...b5 11.Nc3 b4 12.ab4? (better 12.Na2 e5 13.Nh4-+) 12...ab4 (12...Bb4?! 13.Na4-/+) 13.Ra1 Ra1 (13...bc3?! 14.Ra8 cb2 15.Qb1-+) 14.Ba1 (14.Qa1 bc3 15.Bc3 Qe7-+) 14...bc3 15.Bc3 Ne4 16.Bb2 Ndf6 (16...Qc7 17.c4-+) 17.Nd4 (17.d3 Nc5-+) 17...Qb6 18.Bc1 (18.Nb3 e5-+) 18...c5 19.Nf3 Ba6 Black intends c4 (19...Qb8 20.d3 Nc3 21.Qe1 Ne2 22.Qe2-+) 20.c3 (20.Ba6 Qa6 21.d3 Nc3-+) 20...Be2 21.Qe2 c4 22.Nd4 e5 (22...Ra8 23.d3 Nc3 24.Qe1-+) 23.Nf5 Ra8 24.f3 Nc5 25.d4 (25.Nd6 Qd6 26.d4 cd3-+) 25...ed4 (better 25...cd3 26.Qf2-+) 26.ed4 Nd3 27.Bg5 Re8 28.Qd2 Bf8 29.Ne3 h6 (better 29...Qe6 30.Nd1-+) 30.Bf6 Qf6 31.Nd5 Qd6 32.Ne3 Qe6 33.Re1 (33.Nc4 Qc4 34.Rd1 Nc5 35.dc5 Re2-+) 33...Qc6 (better 33...Ne1 34.Nf1 Qg6-+) 34.h3?? (34.Rd1-+) 34...Ne1 35.Qe1 Qe6 (35...Qe6 36.Kf2 Bd6-+) 0-1. Akrapovik (1695) - frankenstein13 (1925), lichess.org, 2021.

6.d4 a6 7.c4 c6 8.cd5 cd5 9.Nbd2 Nbd7 10.Bd3 b5 11.0-0 Bb7 12.Nb3 Rc8 13.Nc5 Bc5 14.dc5 Nc5 15.Ne5 0-0 16.Rc1 Qe7 17.Ng4 Ng4 18.Qg4 f5 19.Qg3?? Nd3 20.Rb1 Nb2 21.Rb2 Qa3 22.Rfb1 Qb2!? (23.Re1 Rc1–+) 0–1. guest460 – guest382, ICC, 1999.

6.Be2 b6 7.0-0 Bb7 8.c4 dc4 9.Bc4 Nbd7 10.Nd4 0-0 11.d3 Nc5 12.Nd2 Nd5 (better 12...a6 13.a4 Qd7-/+) 13.Ba2? (13.Qg4 Bf6 14.Ne4 Ne4 15.de4 Bd4 16.Bd4=+ (16.ed4? Nf6 17.Qg3 Ne4-+)) 13...Nd3-+ 14.Bd5 (14.Qc2 Nb2 15.Bb1 g6 16.Qb2 Bf6-+) 14...Bd5 (14...Qd5 15.e4 Nb2 16.ed5 Nd1 17.Rfd1-+) 15.Qc2?! (15.Bc3-+) 15...Nb2 16.Qb2 Bf6 17.Qc2 c5 18.N4f3 Ba1 19.Ra1 f5 20.Rd1 a5 (20...Qf6 21.Re1-+) 21.a4 Qf6 22.Nc4 Bf3 23.gf3 Qg6 (23...Qg5 24.Kh1 Qh5 25.f4-+) 24.Kh1 (24.Kf1 Qh5 25.Nb6 Rad8 26.Rd8 Rd8-+) 24...Qh5 25.Kg2 f4 26.e4 Rf6 (better 26...Rab8-+) 27.Rg1 (27.Nb6 Rh6 28.Kf1 Qf3 29.Qd3 Qd3 30.Rd3-+) 27...Rh6 (better 27...Rg6 28.Kf1 Qh3 29.Ke2 Rg1-+) 28.Kf1 Qh3 (28...Qf3 29.Ne5 Qh3 30.Ke2-+) 29.Ke1 (29.Ke2 e5 30.Rb1-+) 29...Qf3 30.Nd2 Qa3 31.Nc4 (31.Rh1 Rh3 32.Nb1 Qb4 33.Kf1 Rd8-+) 31...Qa1 32.Ke2 (32.Qd1 Qc3 33.Nd2-+) 32...Qg1 33.Nb6 Rf8 (33...Rh2 34.Qc5 f3 35.Kd3 Rf2 36.Na8 Qd1 37.Kc4 Qa4 38.Kd3 Qd1 39.Kc4 Rc2 40.Kb5 Qd7 41.Qc6 Qc6 42.Ka5 Rc5 43.Kb4 Rb5 44.Ka3 Qa8) 34.Qc5 f3 35.Ke3 Qe1 36.Kd4 Qf2 (36...Qf2 37.Kc4 Qe2 38.Kd4 Qb2 39.Kc4 f2 40.Qf8 Kf8 41.Kc5 Qb4 42.Kc6 e5 43.Kb7 Rb6 44.Ka7 f1Q 45.h3 Qa6) 0-1. alaindubleu - Adjailton (1730), lichess.org, 2016.

6.Ba4 a5 7.c3 Be7 8.0-0 b5 9.Bc2 a4 10.Ba3 (10.d4 0-0–/+) 10...0-0 (10...Ba3 11.Na3 Qd6 12.Nb1–/+) 11.Be7–/+ Qe7 12.d4 Ba6 (12...Nbd7 13.Re1–/+) 13.Re1 Nbd7 14.Nbd2 h6 (14...c5 15.e4–/+) 15.e4 de4 16.Be4 Ne4 17.Ne4 Rac8 (17...c5 18.Ne5 Ne5 19.de5=+) 18.Rb1 Rfd8 19.Qc2 c5 20.d5 Nf8 21.c4 bc4 (21...b4 22.d6 Qb7 23.Ne5=+) 22.d6 Qd7 (22...Qa7!?=+) 23.Ne5+= Qa7 (23...Qe8 24.d7 Rd7 25.Nd7 Qd7 26.Nc3+=) 24.Qa4 Nd7? (better 24...Qa8!?+=) 25.Nc6+– (25.Nc4?! Ra8=) 25...Nb6 (25...Rc6 26.Qc6 Rc8 27.Qa4+–) 26.Ne7 (26.Na7 Na4 27.Nc8 Bc8+–) 26...Kh8 27.Qa3 (27.Qa3 c3 28.Qc3+–) 1–0. Pierre – GuestJaser, internet, 2020.

6.Ba4 Be7 7.0-0 a6 8.c4 (8.Bb3 0-0-/+) 8...0-0 (8...dc4 9.Bc2-+) 9.cd5 cd5 10.Nd4 b5 11.Bc2 Bb7 12.Nc3 Nc6 13.Nce2 Na5 14.Ng3 (14.d3 Qd6-/+) 14...Nc4-+ 15.Bc3 b4 16.d3 (16.Rb1 a5-+) 16...bc3 (16...Ne3!? 17.fe3 bc3 18.Qe1-+) 17.dc4 dc4 18.Qe2 e5 19.Ndf5 g6 20.Ne7 Qe7 21.Qc4 Rfc8 22.Qe2 a5 23.Rfd1 Ba6 24.Qf3 Bb7 25.Qe2 Kg7 26.h4 (26.Rab1 Bd5 27.Bf5 Rc5-+) 26...h5 27.Rab1 Bc6 28.Qd3 Bd7 (better 28...a4!? 29.e4 Qa3-+) 29.Rb7=+ Rd8 (29...Qd8 30.Bb3=) 30.Qc3= Qe6 (30...Rac8 31.Qb3=) 31.Bb3 (31.Ne4 Nd5 32.Qb2+-) 31...Qc6?? (better 31...Qe8+=) 32.Qc6+- Bc6 33.Rf7 Kh6 34.Rd8 Rd8 35.Rf6 a4 (35...Bd5 36.Bc2 e4 37.Be4 Be4 38.Ne4+-) 36.Rc6 (36.Bc2 Be8 37.Nf5 Kh7+-) 36...ab3 37.ab3 Rb8 (37...Rd3 38.b4 Rb3 39.Rb6+-) 38.Nf5 Kh7 39.Ne7 Rb3 40.Rc7 (better 40.Rg6!? Rb4+-) 40...Kg7 41.Nd5 Kf8 42.e4 Rb1 43.Kh2 Re1 44.Kg3 (better 44.f3 Rd1+-) 44...Re4 45.Nf6 Rd4 46.Nh7 (46.Nd7!? Ke7 47.Ne5 Kf6+-) 46...Ke8 47.Ng5 Kd8 (47...Rg4 48.Kh3 Rf4 49.f3+-) 48.Rg7 (better 48.Ne6!? Ke8 49.Nd4 ed4+-) 48...Rd7 49.Rg6 Rd6 (49...Rd3 50.f3 Rd5+-) 50.Rd6 Ke7 51.Re6 Kd7 52.Re5 Kd6 53.Rf5 (53.f4 Kc6 54.f5 Kd6 55.Re6 Kc5 56.f6 Kc4 57.Re4 Kc5 58.f7 Kb6 59.f8Q Kc6 60.Qf5 Kb7 61.Qb5 Kc8 62.Nf7 Kc7 63.Rc4) 53...Kc6 54.Kf4 Kd6 55.Nf7 Kc6 56.Rh5 Kd7 57.Rg5 Ke7 58.Ne5 Ke6 59.h5 Kd5 60.h6 Kd4 61.h7 Kc3 (61...Kc5 62.h8Q Kb4 63.Nc6 Kb3 64.Rb5 Kc2 65.Rb2 Kc1 66.Qc3 Kd1 67.Qd2) 62.Rf5 (62.h8Q Kc2 63.Qh7 Kb3 64.Qb1 Kc3 65.Nf3 Kc4 66.Qb5 Kc3 67.Rc5) 62...Kd2 63.h8N (63.h8Q Ke2 64.g3 Kd2 65.Nf3 Kc2 66.Rc5 Kd3 67.Qc3 Ke2 68.Qe1 Kd3 69.Qe3) 63...Ke2 64.Nhf7 (64.f3 Kd2+-) 64...Kf1 65.Ng5 Kg1 (65...Ke2 66.Nef3 Kd3 67.Rc5 Ke2 68.Ne4 Kd3 69.Rc3 Ke2 70.Nd4 Kd1 71.g4 Ke1 72.Rc1) 66.Nef3 (66.Ngf3 Kf1 67.Ke3 Kg2 68.Rg5 Kh3 69.Rg3) 66...Kf1 (66...Kf2 67.Ne4 Ke2 68.Rd5 Kf1 69.Rd1 Kg2 70.Rd2 Kh3 71.Rh2) 67.Nh3 (67.Kg3 Ke2 68.Rd5 Kf1 69.Ng1 Ke1 70.N5f3 Kf1 71.Rd1) 67...Kg2 (67...Ke2 68.Rd5 Kf1 69.Ke3 Kg2 70.Nf4 Kf1 71.Rd1) 68.Ke3 Kf1 ½-½. ONGAROV (2200) - almasssss (2300), Rated Classical game, lichess.org, 2021. (=1.e3 e6 2.Nf3 d5 3.b4 Nf6 4.Bb2)

6.Be2 Bd7 7.Ne5 c5 8.c3 Ba5 9.Qb3 Qc7 10.d4 (10.c4 0-0+=) 10...c4 11.Qd1 Nc6 12.Nd7 Kd7 13.Na3 Ne4 14.Nb5?? (better is 14.Qc2 Nd6 15.0-0–/+) 14...Qb6–+ 15.Qa4 a6 16.f3 ab5 (16...Qb5?! 17.Qb5 ab5 18.fe4–+) 17.Qc2 Nf6 18.0-0 h5 (18...b4 19.Rfb1–+) 19.Rfb1 g5 20.a4 g4 (20...b4 21.Ba3 b3 22.Qb2–+) 21.f4 (21.Ba3–+) 21...b4 22.g3 (22.Bc1 b3 23.Qb2 Ne4–+) 22...b3 23.Qd2 h4 24.Kg2 (24.Bf1 hg3 25.hg3 Ne7–+) 24...hg3 25.Kg3 (25.hg3 Ne4 26.Qe1–+) 25…Ne4 (25...Ne4 26.Kg2 Nd2–+) 0–1. acaudron (2265) – pallen (2220), net–chess.com, 2013.

6.a4 Bb5 (6...0-0 7.0-0–/+) 7.ab5 Nbd7 8.0-0 0-0 9.d3 (9.Qe2 Bd6–/+) 9...Bd6 10.c4 c5 11.Qc2 Qc7 12.Nbd2 a6 13.ba6 Ra6 14.Ra6 ba6 15.Ra1 Ra8 16.e4 (16.cd5 ed5 17.e4 Bf4–/+) 16...de4 (16...d4 17.Bc1–/+) 17.de4 h6 18.Nb3 Ne5 19.Ne5 Be5 20.Be5 Qe5 21.Rd1 (21.f3!?–/+) 21...a5–+ 22.f3 a4 23.Na1 a3 24.Qb3 Qc7 (24...Ra7 25.Rb1 Nd7 26.Nc2–+) 25.Nc2 (25.Qa2 Qa5–/+) 25...Qa5 (25...a2 26.Ra1 Qa5 27.Qd3–+) 26.g4 (26.e5 Ne8–/+) 26...a2 (26...e5 27.Ra1 a2 28.Qb2–+) 27.Kf2 (27.e5 Nh7–+) 27...Kf8 (27...Qc7 28.Kg2–+) 28.e5 Ne8 29.f4 (29.Ra1 Qd2 30.Kg3 Qe2 31.Ra2 Ra2 (31...Qe5?! 32.f4 Qb8 33.Qb8 Rb8 34.Ne3–/+) 32.Qa2 Qe5 33.Kh3 Qe2–+) 29...Ke7 (29...Qa4 30.Na1–+) 30.Ke3 (30.Qb7 Nc7 31.Na1 Rd8–/+) 30...Nc7 31.h4 (31.Qd3 Kf8–+) 31...Qa7 (31...Kf8 32.Qd3–+) 32.h5 (32.Ra1 Nd5! 33.Kf3 Qb6 34.Qb6 Nb6–+) 32...Rb8 (better is 32...Nd5 33.Kf3 Qb6–+) 33.Qc3? (33.Qd3 Nd5! 34.Kf3 Nb4 35.Qd6 Ke8–+) 33...Rb1 (better is 33...Qa4 34.Kf2 Rb1–+) 34.Ke2?? (better is 34.Qd2 Rd1 35.Qd1–+) 34...Rd1 (better is 34...Qa8 35.Qd3 Qg2 36.Ke1 Qg1 37.Ke2 Qg4 38.Ke1 Qh4 39.Ke2 Qh5 40.Ke1 Ne8 41.Qd7 Kf8–+) 35.Kd1 Qb7 (better is 35...Qa8!?–+) 36.Qa3 Na6 37.Qa2 Nb4?? (better is 37...Qf3!? 38.Kd2 Qf4 39.Kd3 Qg3 40.Kd2 Qh2 41.Kd1–+) 38.Qb3 (better is 38.Nb4 cb4 39.Qf2=) 38...Qh1–/+ 39.Ne1 Qe4 40.Qf3 White prepares the advance f5 (better is 40.Nc2 Nc2 41.Qc2 Qh1 42.Kd2 Qh2 43.Kc3 Qf4 44.Qe2–+) 40...Qf3 (better is 40...Qd4!? 41.Ke2 Qc4 42.Kf2 Nd5–+) 41.Nf3+= Nd3 42.f5?? (better is 42.Ke2!? Nf4 43.Ke3=) 42...Nb2 (better is 42...Nf2 43.Kc2 Ng4 44.fe6 Ke6–+) 43.Kc2 (43.Kd2 Nc4 44.Kd3 Nb6–/+) 43...Nc4 44.Kc3? (better is 44.Kd3!? Nb6 45.Nh4–/+) 44...Ne3–+ 45.f6? (45.g5 ef5 46.Kd3–+) 45...gf6 46.ef6 Kf6 47.Kd3 (47.g5 hg5 48.h6 Nd5 49.Kc4 Nf4 50.Kc5 g4–+) 47...Ng4 48.Kc4 (48.Nd2–+) 48...Ne5 49.Ne5 (49.Kc5 Nf3 50.Kc4–+) 49...Ke5 50.Kc5 f5 51.Kc4 Ke4 52.Kc3 Ke3 53.Kc2 Ke2 (better is 53...f4!? 54.Kc3–+) 54.Kc3 f4 0–1. Goldmund,Heike – Trigance,Emile, FICGS, 2013.

6.Be2!? –/+.

6.Bf6 Qf6–+ 7.Bd7 Nd7 8.c3 Bd6 9.d4 0-0 10.0-0 c6 11.Nbd2 Rfe8 12.c4 Qe7 13.c5 Bc7 14.Rb1 (14.Qa4 e5–/+) 14...b6 15.Qa4 Rec8 16.Rfc1 bc5 17.Rb7 cd4 18.ed4 c5 19.Qa3 Bd6 20.Qc3 (20.dc5 Bc5 21.Qa4 Nb6–+) 20...Qd8 21.Nb3 cd4 22.Qd4 Rc1 23.Nc1 Qc8 24.Rb1 Rb8 (24...Qc2!? 25.Qd3 Rc8 26.Ne1 Qd3 27.Ncd3–+) 25.Rb8 Nb8 26.Qe3 (26.Qd2 Nc6–+) 26...Nc6 (26...Qc2 27.Qe1–+) 27.Nd3 Qb7 28.Qe1 e5 29.Nde5 (29.Nc1–+) 29...Be5 30.Ne5 Ne5 31.Qe5 Qb1 (32.Qe1 Qe1#) 0–1. Valica,Slavo – Efthimakis,Dimitris, b2–b4.com, 2004.

6.Bb5 Nbd7 7.Ne5 (7.d4 a6 8.Bd7 Bd7–/+) 7...0-0–+ 8.Nd7 Nd7 (8...Bd7 9.Be2–+) 9.Ba3 c5 10.d4 a6 11.Bd7 Bd7 12.dc5 (12.Bc5 Bc5 13.dc5 Rc8–/+) 12...Qa5 (12...Bb5 13.c6 Bc6 14.0-0–+) 13.0-0 Bc5 14.Bb2 (14.Bc5 Qc5 15.Qd4 Rac8–+) 14...b5 15.Qh5 Rac8 16.e4 (16.Rd1 Rfd8–+) 16...de4 17.c4 (17.Qe5 Rfd8–+) 17...bc4 (better is 17...Qb4 18.Ba3 Qc4 19.Bc5 Rc5–+) 18.Bc3 (18.Qg4 f6 19.Qe4–+) 18...Bf2! 19.Rf2 (19.Kf2 Qh5) 19...Qh5 20.Nd2 e3 (21.Rf3 ed2 22.Bd2 Bc6–+) 0–1. pinecrest1981 – mels01, Live Game Caissa's Web, 2004.

6.Be2 0-0 7.0-0 c5 8.d4 c4 9.e4? (better is 9.Ba3!?–/+) 9...Ne4–+ 10.Nfd2 Nd2 11.Nd2 Nd7 12.Qc2 Nf6 13.Nf3 b5 14.Ne5 Bb7 15.a4 b4 16.cb4 Bb4 17.Rfb1 a5 18.Bc3 Qd6 19.g4? (better is 19.Qd2–+) 19...Rfb8 (19...Ne4 20.Bb4 ab4 21.Qb2–+) 20.f3 Bc8 21.g5 Nd7 22.f4 f6 23.gf6 Nf6 (23...gf6 24.Nd7 Bd7 25.Rf1–+) 24.h4 Ne4 25.Be1 Be1 26.Re1 c3 (26...Qb6 27.Red1 Qb3 28.Qb3 cb3 29.Rac1–+) 27.Bd3 Rb2 28.Qc1 Qd8 29.Be4 de4 30.Qc3 Rab8 31.Nc6?? (better is 31.Ra3 Qh4 32.Qg3 Qg3 33.Rg3–+) 31…Qh4 0–1. madik – silhouet2003, gameknot.com, 2008.

6.h3 0-0 7.Be2 c5 8.0-0 Nc6 9.a4 e5 10.Na3 e4 11.Ne1 Bf5 12.a5 Qd7 13.a6 b6 (13...ba6!? 14.Ba6 Rab8 15.Rb1-+) 14.Bb5 Rac8 15.d3 Bd6 16.de4 Be4 17.Nf3 Rfd8 18.c4 Qe6 (18...Qf5 19.cd5 Nd5 20.Nc4-+) 19.cd5 Nd5 20.Ng5 Qg6 21.Ne4 Qe4 22.Bd3 Qh4 23.g3?? (better 23.Bc4 Ndb4 24.Qb3-/+) 23...Bg3!-+ 24.Bh7 (24.fg3 Qg3 Double attack (24...Qg5 Decoy)) 24...Kh7 25.Qc2 Kg8 26.fg3 (26.Qf5 Rc7-+) 26...Qg3 27.Qg2 Qg2 28.Kg2 Ne3 29.Kf2 Nf1 30.Kf1 Rd2 31.Nc4 Rc2 32.Nd6 (32.Rc1 Rc1 33.Bc1-+) 32...Rd8 33.Nb7 Rdd2 34.Be5 Ne5 35.Nc5 (35.Nd6 Rf2 36.Ke1 Nd3 37.Kd1 Rcd2) 35...Rf2 36.Ke1 Nf3 37.Kd1 Rfd2 0-1. Gapawa (2025) - titanos444 (2335), Rated Bullet tournament QvCkUSAK, lichess.org, 2015. (=1.e3 A00: Irregular Openings 1...d5 2.b4 Nf6 3.Bb2 e6 4.Nf3)

6.Bb5 c6 7.Be2 b6 8.0-0 (8.Ne5 Qc7 9.Nd3 Bd6 10.f4 d4 11.Nb1 de3 12.de3 Nbd7 13.0-0–+; 8.Rb1 Ne4 9.0-0 Bc3 10.dc3 Ba6 11.c4 dc4 12.Qe1 f6 13.Nd4–/+; 8.a3 Bd6 9.0-0 e5 10.d3 Qc7 11.h3 Re8 12.Qd2 Na6 13.Rab1–+) 8...Bb7 (8...Bd6 9.Ng5 e5 10.d3 Nbd7 11.Rb1 b5 12.Qd2 Re8 13.Nd1–+) 9.Ne5 Bd6 (9...Nbd7 10.Nd3 Bd6 11.f4 c5 12.Ne1 Be7 13.Nf3–/+) 10.f4 b5 (10...Nbd7 11.Nf3 b5 12.Qe1 b4 13.Nb1–/+) 11.Bf3 (11.Qe1 a6 12.a4 b4 13.Nb1–/+) 11...a5 (11...Nbd7 12.Ne2 c5 13.a4–/+) 12.Rb1 (12.Qe1 b4 13.Ne2–/+) 12...a4 (12...Nbd7 13.Ne2–/+) 13.Ne2 b4 14.Nd4 Qc7 15.c4 a3 16.cd5 (better is 16.Ba1!?–/+) 16...ab2–+ (16...Be5?! 17.fe5 Nd5 18.Bd5 ab2 19.Ne6 Qe5 20.Nf8 Qd5 21.Nh7 Kh7 22.Rb2+=) 17.de6 0–1. Vasilev,Sergey – Fabian,Las GER (1725), FSFMB July Budapest HUN, 2011. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.e3 Bb4)

6.d4 Ne4 7.Qd3 f5 8.Nd2 Qf6 9.Be2 c5–+ 10.Nce4? fe4 11.Qb3 Qf2 12.Kd1 Qg2 13.Rf1 Rf1 14.Nf1 Nc6 15.a3 c4 16.Qa4 Bd6 17.Kd2 Bd7 18.c3 Nd4! 19.Qd1 Nb3 (20.Kc2 Na1 21.Kb1 Nb3–+) 0–1. alaamattar (2180) – jjrizzo (2250), net–chess.com, 2006.

6.Rb1 –/+.

6.Bd3 e5 7.Bb5 e4 8.Nd4 0-0 9.0-0 c5 10.Nb3 c4 11.Bd7 Bd7 (11...Nd7?! 12.Nd5 Bd6 13.Nd4=+) 12.Nd4 Bc5 13.f3 Qb6 14.Rb1 Bd4 15.Nd5 Nd5 16.Bd4 Qg6 17.fe4 Qe4 18.d3 Qe6 19.dc4 (19.e4 Nb6 20.Qf3–+) 19...Ne3 20.Qd3 (20.Be3 Qe3 21.Rf2 Bc6–+) 20...Nf1 21.Rf1 Rfe8 22.Qg3 Qg4 23.Qd3 Bc6 24.Qd2 Re2 25.Rf2 Rd2 26.Rd2 Qe4 27.Bb2 Qe1# 0–1. sushibu (1675) – b4_player (2180), GameColony.com, 2003.

6.a3 Bd6 7.Qc2 Nbd7 8.Be2 h6 9.h4 c5 10.Nc3 b6 11.Ng5 Bb7 12.cd5 ed5 (12...hg5 13.hg5 ed5 14.gf6+/–; 12...Bd5?! 13.Nd5 ed5 14.Nf3–/+) 13.Bf3 Ne5 (13...hg5 14.hg5 Be5 15.Nd5 Bd5 16.gf6 Nf6 17.Be5+/–) 14.Nd5 Bd5 15.Bd5 Rc8 (15...hg5 16.hg5 Re8 17.gf6 Qf6 18.Ba8 Ra8 19.Qh7 Kf8 20.Qh8 Ke7 21.Qa8 Nd3 22.Ke2 Nb2 23.Qb7 Ke6 24.Qc8 Kd5 25.Qa8 Ke6 26.Rh8+–) 16.f4 Ned7 (16...hg5?? 17.hg5 Re8 18.gf6 Qf6 19.fe5 (19.Be5?! Be5 20.Qh7 Kf8+–) 19...Be5 20.Bf7 Kf7 21.Rf1+–) 17.0-0-0 (17.Qg6! Qe8 18.Ne4=) 17...b5 (17...hg5 18.hg5 Re8 19.Qg6+– (19.gf6 Qf6 20.Bf6 Nf6 21.Rh8 Kh8 22.Bf7 Bf4 23.ef4 Ng8+–)) 18.Qf5 Qe7 (18...Be7!?–/+) 19.e4 g6?? (better is 19...c4 20.e5 A) 20...hg5 21.hg5 c3 22.ef6 cb2 23.Kb2 Nf6 24.Qh3+– (24.gf6?! Qf6 25.Qf6 gf6+/–); B) 20...Ba3 21.ef6 Bb2 22.Kb1 Nf6 23.Bf7 Kh8 24.Kb2 Qb4 25.Kc2 Qb3 26.Kc1 Qa3 27.Kb1 Qb3 28.Kc1 Qa3 29.Kb1 Rc6+=) 20.Qg6 Kh8 21.Qh7 1–0. combijack (1800) – cougarbait (1665), gameknot.com, 2011.

6.Qa4 Nc6 7.a3 Bd6 8.Nc3 –/+.

6.Qa4 Nc6 7.a3 Be7 8.d4 Bd7 9.Qc2 Na5 10.cd5 ed5 11.Bd3 c5 12.dc5=+ Rc8 13.Bd4 Bc5 14.Bc5 b6 (Black gets strong initiative) 15.0-0 Rc5–/+ 16.Qb2 Nc4 17.Qd4 Qc7 18.g3 Ne4 19.Bc4 Rc4 20.Qd5–/+ Bh3 21.Re1 Rd8 (22.Qh5 Be6–/+) 0–1. Valica,Slavo (1630) – Bonetti,Shane (2105), TT–16 ETC, 2005.

6.Qa4 Nc6 7.Nc3 dc4 8.Bc4 Bd7 –/+.

6.Qc2 b6 7.Ng5 Nbd7 8.cd5=+ ed5 9.Bb5 h6 10.Bd7 hg5 11.Bc8 Rc8 12.Nc3 d4 13.Ne4 Ne4 14.Qe4 c5 15.0-0 Bd2 16.ed4 c4 17.Rad1 Re8 18.Qc2 c3–+ 19.Bc1 Bc1 20.Qc1 Qd5 21.Qc2 b5 22.f4 Re4 23.fg5 Rd4 24.Rd4 Qd4 25.Kh1 Qc4 26.Rf3 Re8 (27.h3 Re1 28.Kh2 Qc7 29.g3 Qe5–+) 0–1. De Visser,Arno – de Vries,J, corr NL ch, 1989.

6.Qc2 b6 7.Ng5 g6 8.Be2 –/+.

6.Qc2 Nc6 7.Nc3–/+.

6.Qc2 Nc6 7.cd5 Nd5 8.Nc3 –/+.

6.Qc2 Ne4 7.a3=+ Be7 8.Nc3 Nc3 9.Bc3 Bf6 10.d4 c5 (10...Nc6 11.Bd3 g6 12.0-0=) 11.cd5 Qd5 (11...ed5 12.Bd3=) 12.Bd3 h6 13.e4 Qh5 (13...Qd8!? 14.dc5 Bc3 15.Qc3 Nd7=) 14.e5+= Be7 15.0-0 (15.dc5 Nd7+– (15...Bc5 16.h3 f5 17.ef6 gf6 18.Bg6 Bf2 19.Kf2 Qc5 20.Kg3 Qc7 21.Kh4+–)) 15...Nc6 (15...Rd8 16.dc5 Rd5 17.Bh7 Kf8 18.Be4 Rc5 19.Rfd1+–) 16.Rad1 (better 16.dc5!? Bc5 17.h3+–) 16...cd4= 17.Bd4 Nd4 18.Nd4? (better 18.Bh7!? Kh8 19.Rd4=+) 18...Qe5–/+ 19.Nf3 (19.Nb5 a6 20.Rfe1 Qc5–+) 19...Qc5–+ 20.Qb1 (20.Qc5 Bc5 21.a4 Bb6–+) 20...b6 (20...Qa3 21.Rfe1–+) 21.Be4 (21.a4 Bf6–+) 21...Rb8 (21...Ba6 22.Rfe1 Rad8 23.Rc1 Qa3 24.Rc7–+) 22.a4 Ba6 23.Rc1 (23.Bh7 Kh8 24.Bd3 Bd3 25.Qd3 Rbc8–+) 23...Qb4 24.Rfd1 Qb1 (24...Rbc8 25.Ne5 Qa4 26.Bh7 Kh8 27.Rc8 Bc8 28.Bc2–+) 25.Rb1 (worse 25.Bb1 Rbc8 26.Be4 Bf6–+) 25...Rfd8 26.Ne5 Rd1 27.Rd1 Rd8 28.Rd8 Bd8 29.Nc6 Bc7 30.Na7 f5 31.Bc6 Kf7 32.Nb5 Bb8 33.f3 e5 34.g3 Ke6 35.Kf2 Bd6 36.h3 Bc8 37.g4 fg4 (37...Bc5 38.Ke2–+) 38.hg4 (38.fg4 Bc5 39.Kf3 Kf6–/+) 38...Bd7–+ 39.Be4 Bc5 40.Kg3 Kf6 41.Bc2 Bc6 42.Bd3 Bd5 (42...Be8 43.Bc4–+) 43.Bc2 (43.Nc3!? Bb7 44.Ne4 Ke6 45.Nc5 bc5 46.a5=+) 43...Bc4 44.Be4 Bb3 45.Nc3 Bd4 (better 45...Ke6 46.Bc6 Be3–+) 46.Nd5? (better 46.Bd5 Bd5 47.Nd5 Ke6 48.Nc7 Kd7 49.Nb5–+) 46...Ke6 47.Nc7 Kd7 48.Bd5 (48.Nb5 Ba4 49.Na7 Kc7–+) 48...Ba4 (48...Kc7?! 49.Bb3 Kd6 50.Kg2=) 49.Na6 (49.Ne6 Kd6 50.Ba2–+) 49...Kd6 50.Be4 Bc3 51.f4 (51.Kf2 Bb5 52.Bb7 Bc6–+) 51...b5 (51...Bb5 52.Bb7 Bc6 53.Bc6 Kc6 54.Kf3 ef4 55.Kf4–+) 52.f5 (52.fe5 Be5 53.Kf2–+) 52...b4 53.Kf2 (53.Nb4 Bb4 54.Bf3 Be1 55.Kh2 Kc5–+) 53...b3 54.Ke3 (54.Nb8 Bb5–+) 54...Bb5 55.Nb8 Kc7 0–1. combijack (1920) – mapo (1955), gameknot.com, 2016.

6.Nc3 c6 7.Bd3 Nbd7 8.0-0 e5 9.cd5 (9.cd5 Bc3 10.Bc3–+ (worse is 10.dc3 e4–+)) 1–0. chaman – mgilbert (2375), net–chess.com, 2015.

6.cd5 ed5 7.Be2 –/+.

6.cd5 Nd5 7.Nc3 Nf6 –/+.

6.cd5 Nd5 7.Bd3 b6 8.0-0 Bb7 9.Ng5?? h6 10.Ne4 Nd7 11.Nbc3 N7f6 12.Nf6 Nf6 13.Ne4?? Qd3–+ 14.Nf6 gf6 15.Qg4 Kh7 16.Bf6?? Rg8–+ 17.Qf3 Bf3 (18.Be7 Rg2 19.Kh1 Rg3#) 0–1. guest907 – guest739, ICS blitz, 2001.

6.cd5 Nd5 7.Bd3 Bd6 8.Nc3 –/+.

6.Ne5 –/+.

6.Qb3 a5 –/+.

6.Nc3 0-0 7.Bd3 Nbd7 8.0-0 Qc7 9.Ne2 (9.Be2 Bd6–/+) 9...Bd6 (9...e5 10.Qb1 e4 11.Bf6 ed3–+ (11...gf6?! 12.Qb4 c5 13.Qc3 ef3 14.gf3=)) 10.Rc1 Re8 11.cd5 ed5 12.Ned4 Nc5 13.Bb1 Bg4 14.h3 Bd7 15.Ba3 Nfe4 (15...b6 16.Bf5–/+) 16.Nb3 (16.Be4 Ne4 17.Nb5 Qb8 (worse is 17...cb5 18.Rc7 Bc7 19.Qb3+/–) 18.Nd6 Nd6+=) 16...Nb3 17.Bd6 Qd6 18.ab3 Qb4 19.d3 Nc5 20.Bc2 Ne6 21.d4 Qd6 22.Ne5 f6 23.Bh7 1–0. chaman – workchess (2220), net–chess.com, 2015.

6.cd5 ed5 7.Be2 0-0!? –/+.

6.cd5 ed5 7.Be2 Bg4 8.Qb3=+ Qe7 9.Bf6 =+. marekt – OffTheWall, ChessWorld.net, 2004.

6.Be2 dc4 7.Bc4 0-0 8.0-0 –/+.

6.Be2 Bd6 7.0-0 0-0 8.d4 –/+.

6.Be2 Bd6 7.0-0 Nbd7 8.d3 (8.d4 0-0–/+) 8...Qe7 (8...0-0 9.d4–/+) 9.Nbd2 (9.d4 0-0–/+) 9...e5 10.Re1 (10.Qc2 0-0–/+) 10...Ng4 (10...0-0 11.Qc2–/+) 11.h3 (better is 11.e4–/+) 11...h5 (11...Ngf6!?–/+) 12.hg4=+ hg4 13.g3? (better is 13.Nh2 Qh4 14.Ndf1=) 13...gf3–+ 14.Nf3 Bb4 15.Nd2 d4 16.ed4 Qg5 17.Ne4 Qh6 18.Bf3 Be1 19.Qe1 f5 20.Nc5 0-0 21.Nd7–/+ Bd7 22.de5 f4 23.Bg2 f3 24.Bh1 Bg4 25.Qe4 Qh3 26.Ba3 Rf5 (27.Bd6 Re8–+) 0–1. Cinca,Daniel (2215) – Ciortan,Mircea, Telechess, 2004.

6.0-0 a6 7.Ne5 Nbd7 8.f4 Ne5 9.fe5 Ne8 10.Bd3 f5 11.Rf3 g5 (11...Bd7 12.a3 Be7 13.Nc3–/+) 12.Nc3 c5 Black intends d4 13.Bf1 d4 14.Ne2 de3 15.c3 Ba5 (worse is 15...Qd2 A) 16.cb4? Qb2 17.Re3 Qb4–+ (17...cb4? 18.Nd4+–); B) 16.Qd2 ed2 17.cb4 cb4 18.Rd1+/–) 16.Re3 f4 17.Rf3 Ng7 18.Ba3 Qc7 19.d4 Bb6 (19...b6 20.Qd3+=) 20.g4 (20.Rb1!? Ba7 21.Qd3+=) 20...Bd7–/+ 21.Qc2? (21.Qb3 Bc6 22.Rf2 Ba7–/+) 21...Be8?? (better is 21...cd4!? 22.Rf2 Rfc8 23.Bd6–+) 22.Nc1 (22.Qb2 Bc6 23.Rf2 Rad8–/+) 22...Bg6 (22...cd4!? 23.Bd3 h5 24.Bf8 Kf8 25.c4 hg4 26.Rf2–+) 23.Bd3 Bd3 24.Nd3 cd4 25.Bf8 Rf8 (better is 25...dc3!? 26.Kg2 Rf8–/+) 26.c4+= 1–0. residencialfil (2510) – pushtiu (2245), net–chess.com, 2016.

6.0-0 c5 7.a3 Ba5 8.c4 Nc6 9.cd5 Nd5 10.e4 (10.Qc2 Qd6+=) 10...Nf6 (10...Nf4 11.Nc3–/+) 11.Qb3 (11.Qc2 b6–/+) 11...Ne4 12.Qe3 Nf6 13.Qc5 Bb6 14.Qg5 h6 15.Bf6 hg5 16.Bd8 Bd8 17.d4 (17.h3 e5–/+) 17...Bf6 18.Rd1 (18.Ra2 Rd8–+) 18...g4 19.Nfd2 Bd4 20.Ra2 e5 21.Nb3 (21.Nc4 Rd8–+) 21...Bb6 (21...Be6 22.N1d2–+) 22.Nc3 (22.N1d2 Be6 23.Nc4 Rfd8–+) 22...Be6 23.Rb2 f5 (23...Nd4 24.Nc1–+) 24.Nd5 (24.Na4 Bd4 25.Nd4 Nd4–/+) 24...Bd5 (24...Rfd8 25.Bc4–+) 25.Rd5 Rad8 26.Rd8 Rd8 27.g3 g5 28.Bc4 Kg7 29.a4 Nd4 30.a5 Nf3 31.Kg2 Rd1 32.ab6?? Rg1# 0–1. Neumann,Frank (1650) – Baer,Cy (1895), RSS7E easy–57, 2007.

6.0-0 c5 7.c4 Nc6 8.d4 cd4 9.ed4 (9.Nd4 Bd6–/+) 9...dc4 10.Bc4 b6 11.a3 Bd6 12.Nc3 Bb7 13.d5 (13.Re1 Rc8–/+) 13...Na5–+ 14.Ba2 ed5 15.Re1 (15.Nb5 Bc5–+) 15...Nc4 16.Bc4 dc4 17.Nb5 Bc5 18.Qc2 (18.Rc1 Qd1 19.Red1 Ng4–+) 18...Bf3 19.gf3 Qd3 20.Qd3 cd3 21.Rad1 Rfd8 22.Nc3 (22.Re3 a6 23.Nd4 Bd4 24.Red3 Ra7–+) 22...Rac8 23.Ne4 Ne4 24.Re4 (24.fe4 Be7–+) 24...f5 25.Re5 g6 26.h4 Kf7 27.h5 Be7 (27...gh5 28.Rf5 Kg6 29.Rf6 Kg5 30.Rf7 Bf2 31.Kf2 Rc2 32.Kg3 h4 33.Kh3+/–) 28.hg6 hg6 29.Kg2 Rc2 (30.Rb5 Bh4–+) 0–1. arturo – ChelseaMick, ChessWorld.net, 2005.

6.0-0 Nc6 7.Re1 Bd6 8.c4 dc4 9.Bc4 e5 10.d3 a6 11.Nbd2 –/+.

6.0-0 Bd6 7.Bd3 Nbd7 8.Kh1 (8.Nc3 e5 9.Be2 a6–/+) 8...c5 (8...e5 9.Be2–+) 9.c4 (9.Nc3 a6–/+) 9...Qc7 (9...e5!? 10.Be2–+) 10.Nc3 (10.Qc2 a6–/+) 10...Ne5 (10...a6 11.Qc2–/+) 11.Nb5 (11.Ne5 Be5 12.f4 Bc3 13.Bc3 Ne4=+) 11...Qb8–/+ 12.Ne5 Be5 13.Be5 Qe5 14.f4 Qb8 15.cd5 (15.Rb1 b6–/+) 15...ed5 (< 15...Nd5 16.Qc2=+) 16.Qf3 a6 17.Nc3 Qd6 18.Rg1 Qd7 19.h3 b5–+ 20.g4 Bb7 21.Kh2 d4 22.Ne4 Ne4 23.Be4 Be4 24.Qe4 Rae8 25.Qc2 de3 26.de3 Re3 27.Qc5 Re2 28.Rg2 Rfe8 29.Rag1 h6 30.Qa3 Qd2 31.f5 Qf4 32.Qg3 Qa4 33.a3 R2e3 34.Qd6 Qa3 35.Qa3 Ra3 36.g5 Ree3 37.Rg3 Rg3 38.Rg3 Rg3 39.Kg3 hg5 40.Kf3 b4 41.Ke3 a5 42.Kd2 b3 43.Kc3 a4 44.Kb2 Kf8 45.Ka3 Ke7 46.Kb2 Kf6 47.Ka3 Kf5 48.Kb2 g4 49.hg4 Kg4 50.Kc3 f5 51.Kb2 f4 52.Kc3 f3 53.Kb2 f2 54.Kc3 f1Q 55.Kd4 b2 56.Kc5 b1R 57.Kc6 Qc4 58.Kd7 Rd1 59.Ke7 Qe4 60.Kf7 Rd6 (61.Kf8 Rf6 62.Kg8 Qc4 63.Kh7 Qf7 64.Kh8 Rh6#; 60...Rd7 61.Kg8 g5 62.Kf8 Qa8#) 0–1. Saak,Sarah – Popovic,Nathalie, GER–ch U14 Girls, 2003.

6.0-0 Bd6 7.Be5 Nc6 8.Bd6 Qd6 –/+.

6.0-0 Bd7 7.c4 (7.Ne5–/+) 7...c6 (7...dc4!? 8.Bc4 Bd6–/+) 8.Qb3= Qb6 9.Bd4 (better 9.Bf6 gf6 10.Nc3=) 9...Qa5 (better 9...dc4!? 10.Qc4 Qb5=) 10.a3+– Bd6 (10...Be7 11.Qb7 c5 12.cd5 Nd5=) 11.Qb7+– c5 12.Bf6 (12.Qa8 Bc6 13.Bc3 Qc7 (13...Ba8?? 14.Ba5 dc4 15.Rc1+–) 14.Qc6 Nc6 15.Bf6 gf6 16.cd5 Ne5=+) 12...gf6 13.cd5 (13.Qa8 Bc6 14.Qc6 Nc6 15.cd5 ed5–/+) 13...ed5 (13...Qb6 14.Qa8 Rc8 15.Nc3+–) 14.Qd5 (14.Qa8 Bc6 15.Qc6 Nc6–/+) 14...Qc7 15.Qh5 (15.Qa8?! Bc6 16.Qc6 Nc6+=) 15...c4 (15...Kg7 16.Nc3+–) 16.Rc1 Be6 17.Bd3!! f5 (17...cd3 18.Rc3 Double attack (18.Rc7 Pinning; 18.Rc7 Deflection; 18.Rc3 Decoy)) 18.Ng5 f6 (18...h6 19.Ne6 fe6 20.Qh6 Qe7 21.Bc4 Rf6+–) 19.Ne6 Qf7 20.Qf7 (20.Qf3 cd3 21.Nf8 Nc6 22.Nh7 Be5 23.Qc6 Rb8+–) 20...Kf7 (20...Rf7 21.Bc4 Nd7 22.Nc7+–) 21.Bc4 Ke8 (21...Nd7+–) 22.Nf8 Kf8 23.Bd5 Be5 24.d4 (24.Rc8 Kg7 25.d4 Nc6 26.Ra8 Nd4 27.ed4 Bd6 28.Ra7 Kg6+–) 24...Bd6 25.Rc8 (25.Rc8 Ke7 26.Rh8+–) 1–0. Anonymous – Anonymous, lichess.org, 2020.

6.0-0 Nbd7 7.a3 Bd6 8.d4 –/+.

6.0-0 Nbd7 7.Nc3 c5 8.Nb5 c4 –/+.

6.0-0 Nbd7 7.Nc3 c5 8.d4 cd4 (8...Qa5 9.Nb5–/+) 9.Nd4 (9.Qd4 Qe7–/+) 9...a6 10.Rb1 (better is 10.a3 Bd6 11.f4–/+) 10...b5?? (10...Qc7 11.Qe1–/+) 11.Bf3?? (better is 11.Nc6 Qc7 12.Nb4+–) 11...Bb7 (11...Bd6 12.Nce2–+) 12.Nce2 e5 13.Nf5–/+ Ba5 14.Ba3 e4–+ 15.Bf8 ef3 16.Ned4?? Qf8 17.Qf3 Ne5 18.Qg3 Ng6 19.f3 Qa3 20.Ne2 Rc8 21.Nf4 Rc2 22.Ng6 hg6 23.Qb8 Kh7 24.Nd4 Qe3 25.Kh1 Qd4 26.Qb7 Qd2 27.Rg1 Bc3 28.Qc8 Bd4 29.Qh3 Kg8 30.Rgd1 Qe3 31.Re1 Qa3 32.Rb3 Qa2 33.Rd3 Bc5 34.Qc8 Bf8 35.Qh3 Re2 36.Rc1 b4 37.Rd4 Qb2 38.Rcd1 a5 39.Rh4 Nh5 40.g4 Rh2 41.Qh2–/+ Qh2 42.Kh2? Nf4 43.g5 Bd6 44.Kh1? b3 45.Rg4? a4 46.Rd4 b2 47.Rd1 a3 48.Rgg1 a2 (49.Ra1 ba1R 50.Ra1 Be7–+; better is 48...Be5 49.Rde1 Bd4 50.Rgf1–+) 0–1. kehrsam – khani9, ChessWorld.net, 2007.

6.0-0 Nbd7 7.Nc3 e5 8.Rb1 –/+.

6.0-0 Nbd7 7.c4 dc4 8.Qc2 Nb6 9.Na3 Ba3 10.Ba3 Re8 11.Bb2 –/+.

6.a3 Bd6 7.0-0 Nc6 8.Bb5 Bd7 9.d3 a6 10.Bc6 Bc6 11.Ne5 –/+.

6.a3 Be7 7.0-0 Nbd7 8.Ne5 c5 9.f4 Ne5 10.fe5 Nd7 11.c4 –/+.

(6.0-0 0-0=+). Klaus Behrmann – colinwebb, ChessWorld.net, 2004.

6.a3 Ba5 7.0-0 (7.Nd4 0-0 8.Nb3 Nc6 9.0-0 a6 10.Qe1 Re8 11.f4+=) 7...0-0 (7...c5 8.Ne5 0-0 9.d4 c4 10.Bc3 Bc3 11.Nc3–/+) 8.c4 (8.Nd4 c5 9.Nb3 Nc6 10.Bb5 Bd7 11.Qf3+=) 8...dc4 9.Bc4 Ba6 10.Qc2 (10.Ba6 Na6 11.Ne5+=) 10...Bc4 11.Qc4 c5 12.Nc3 a6 13.d4 Nbd7 14.Rfd1 b5 15.Qe2 Rc8 16.d5 Bc3 17.de6 Bb2 18.ed7 Ba1 19.dc8Q Qc8 20.Ra1 c4 21.Nd4 Qc5 22.Qb2 Nd5 23.Qd2 c3 24.Qd3 Rc8 25.Nc2 Qc4 (25...Nf6!?–+) 26.Qc4+= bc4 (worse is 26...Rc4 27.Rd1+–) 27.Rd1 Nb6 28.Rd6 Rb8 29.Kf1 a5 30.Rc6 f6 31.Nd4 Rb7 32.Ke2 h5 33.Rc5 ½–½. phildo (1860) – eaglecrest (1685), gameknot.com, 2013.

6.a3 Bd6 7.Nc3–/+ (7.0-0 0-0 8.Nc3 c6 9.Na2 Qe7 10.Nc1 e5 11.d4–+) 7...0-0 8.Nb5 Ba6 9.Nd6 Be2 10.Qe2 cd6 11.d3 –/+.

6.a3 Be7 7.0-0 0-0 8.Ne5 Qd6 9.f4 Ba6 10.Ba6 Na6 11.Ng4 –/+.

6.Nc3 0-0 7.a3 Bd6 8.Nb5 Ba6 9.Nd6 Be2 10.Qe2 cd6 11.d3 –/+.

6.Nc3 Ba6 7.d3 0-0 8.a3 Bd6 9.0-0 e5 10.a4 c6 11.Qd2 –/+.

6.0-0 0-0 7.a3 Bd6 8.c4 dc4 9.d3 (9.Bc4 e5–/+) 9...e5 (9...cd3 10.Bd3 e5 11.Nbd2–+) 10.dc4–/+ e4 11.Nd4 Ne5 (better is 11...Nd4 12.ed4 c6–/+) 12.Nf5? (better is 12.Nb5 Nd3 13.Bd4+=) 12...Bf5–+ 13.Nc3 (13.c5 Nd3 14.Bd3 Bh2 15.Kh2 Ng4 16.Kg1–+) 13...c6 14.Qb3 Nfd7 15.Rad1 Nc5 16.Qa2 Ned3 17.f3 ef3 18.Bf3 (18.Rf3 Bg4 19.Bd3 Bf3 20.gf3 Nd3–+) 18...Qg5 19.Ne2 (19.e4 Qe3 20.Kh1 Qh6–+) 19...Qe3 20.Kh1 Ne4 21.Bd4 (21.Rd3 Qd3 22.Qa1 Rfe8–+) 21...Ndf2 22.Kg1 Bh2! 23.Kh2 Qh6 24.Kg1 Qh1# 0–1. Neumann,Frank (1650) – Brueske,Thomas (2355), RS–No–Engine–Pyramide, 2009.

6.0-0 0-0 7.Ba3 Qd6 8.Qc1 e5 9.Qb2 Ba3 10.Qa3 Nb4 11.Rc1 c5 12.c3 Nc6 13.d4 Nd7 14.Bb5 e4 15.c4?? (better is 15.Nfd2 a6 16.Be2–/+) 15...ef3–+ 0–1. gregorgysi (2570) – sbeaul (2470), net–chess.com, 2016.

6.0-0 0-0 7.d4 c5 8.c4 b6 9.a4 Bb7 10.a5 ba5 11.Qa4 Nc6 (11...Nbd7 12.cd5 Bd5 13.Nc3-/+) 12.dc5 Bc5 13.cd5 (13.Qb5 Qb6 14.Bf6 gf6 15.cd5 ed5=+) 13...Nd5-/+ (13...Qd5?! 14.Bf6 gf6 15.Rd1=) 14.Nc3 Nb6 15.Qa2 Nb4 (15...Qe7 16.Rfd1-/+) 16.Qb1 N6d5 17.Na4 (17.Rd1 f5-/+) 17...Be7 18.Bd4 Bf6 19.Nc5 Bc6 20.Ne5?? (20.Rd1-/+) 20...Qd6 (better 20...Be5 21.Be5 Qg5-+) 21.Nc6 (21.Ne4 Qb8 22.Nf6 Nf6=+) 21...Nc6 22.Qa2?? (better 22.Ne4 Qd8 23.Nf6 Nf6 24.Bc5=+) 22...Nd4-+ (22...Bd4?! 23.ed4 Nd4 24.Ne4-+) 23.ed4 Bd4 24.Nb7 Qc7 25.Rab1 (25.Na5 Ba1 26.Qa1 Rfb8-+) 25...Nc3 26.Qc2 Rfc8 (26...Ne2 27.Qe2 Bb6 28.Na5 Ba5 29.Rbc1-+) 27.Rb3 (27.Bd3 Nb1 28.Qb1 g6-+) 27...a4 28.Rb4 Ne2 29.Qe2 Bc3 (better 29...Bb6 30.Qf3 Rab8 31.Rg4-+) 30.Rb5 (30.Rbb1 Rab8 31.Qa6 a3-+) 30...a6 31.Rbb1 a3 32.Rb3 (32.Rfd1 Rab8 33.Qc2 Qh2 34.Kh2 Be5 35.Kh3 Rc2-+) 32...Bb2 (32...Rab8 33.Rc3 Qc3 34.Nd6-+) 33.h3 (33.Qe4 Rab8 34.Rd1 Be5-+) 33...Ra7 (33...Rcb8!? 34.Qe4 Bf6 35.Qb1-+) 34.Qf3 Bf6 35.Rd1 (35.Ra3 Qb7 36.Qb7 Rb7 37.Ra6 Rb2-+) 35...a2 36.Ra3 a1Q 37.Raa1 Ba1 38.Ra1 (38.Nd6 Rf8-+) 38...Qb7 (38...Rb7 39.g3-+) 39.Qa3 (39.Qb7 Rb7 40.Ra6 Rb2-+) 39...Qc7 40.g3 Rb7 (40...a5 41.Qa4-+) 41.Kg2 (41.Qa6 Rb2-+) 41...Qc6 42.Kg1 g6 43.Qa5 h5 44.Qa6 (44.Qa3 Rcb8 45.Qd3 Rb3-+) 44...Qa6 (better 44...Rb1! 45.Rb1 Qa6 46.Re1-+) 45.Ra6 Rb1 (45...Rb1 46.Kg2 Rc2-+) 0-1. greay (2325) - BeepBeepImAJeep (2605), lichess.org, 2019.

6.0-0 0-0 7.d4 Re8 8.c4 Nc6 9.cd5 ed5 10.Nc3 Bd6 11.Ne5? (better 11.Nb5!?-/+) 11...Ne5-+ 12.de5 Be5 13.f4 (13.Qc2 Qe7-+) 13...Bd6 14.e4 (14.Nd5 Nd5 15.Qd5 Bf4-+ (15...Re3 16.Qd4 Qf6 17.Qe3 Qb2 18.Qe8 Bf8 19.Kh1+=)) 14...Ne4 15.Bf3 (15.Ne4 Re4 16.Bf3 Rf4 17.Qd5 c6-+) 15...Nc3 (15...Bc5!? 16.Kh1 Nf2 17.Rf2 Bf2 18.Qd5-+) 16.Bc3 c5 (16...c6 17.Kh1-+) 17.Qc2?? (better 17.Bd5 Re7 18.Qf3-/+) 17...d4 (17...Bf4 18.Rae1 Re1 19.Re1-+) 18.Bb2 (18.Bd2-+) 18...c4 (18...Qe7 19.Bc1-+) 19.Bd5?? (19.Qc4 Bf4 20.Bh5 Be3 21.Kh1 g6 22.Qf7 Kh8-+) 19...Qb6 (better 19...c3 20.Bc1 Bc5-+) 20.Bc4?? (better 20.Qc4!? Be6 21.Bd4-/+) 20...Bc5 (better 20...d3 21.Qf2 Bc5 22.Bd3 Bf2 23.Rf2 Rd8-+) 21.Bd3 Re3 (21...Bf5 22.Rad1-+) 22.Bh7? (better 22.Rab1!? Qc6 23.Bc1-/+) 22...Kh8-+ 23.Bd3 Bg4 (better 23...Rd3 24.Qd3 Qb2-+) 24.h3?? (better 24.Bc1 Re2! 25.Bd2-/+) 24...Be2!!-+ 25.Be2 Re2! 26.Qd3 (26.Qe2 d3 Double attack (26...d3 Decoy; 26...d3 Passed pawn)) 26...Re3 (better 26...Qb2 27.Qf3 Rd8-+) 27.Bd4?? (better 27.Qf5 d3 28.Kh2-+) 27...Bd4 (better 27...Rd3 28.Bc5 Qc5 29.Kh2 Rd2-+) 28.Qf5 (28.Qe3 Be3 29.Kh1-+) 28...Rh3 29.Rf2 Bf2 30.Kf1 Rh1 31.Ke2 Qe3 0-1. anotherheaven (1795) - mkhoshkalam (1840), lichess.org, 2015.

6.0-0 Nc6 7.d3 Bd7 8.Nbd2 0-0 9.Re1 a6 10.e4 b5 11.e5 Ne8 12.d4 f6 13.Bd3 f5 14.Re3 Nb4 15.Ne1 c5 16.Rh3 c4 17.Be2 Rc8 18.c3 Nc6 19.a3 Bg5 20.Ndf3 Bh6 21.Nh4 g5 (better 21...Na5-/+) 22.Bh5?? (better 22.Nf5 ef5 23.Rh6+=) 22...g4 (22...gh4 23.Bc1 Bg7 24.Nf3-+) 23.Rg3? (23.Bg4 Bg5 24.Nf5 ef5 25.Be2-+) 23...Bg5 (23...Qh4 24.Bg4 Bf4 25.Bf5 Bg3 26.hg3-+) 24.Bg4 (24.Nhf3 Bf4 25.Be8 Be8 26.Nd2-+) 24...Bh4 (24...fg4?! 25.Qg4 h6 26.f4 Ne5 27.fe5+=) 25.Rh3 (25.Be2 Bg3 26.fg3-+) 25...fg4 (better 25...Bf2 26.Kh1 fg4 27.Qg4 Ng7-+) 26.Qg4 Qg5 27.Qh4 Qh4 28.Rh4 Rf5 29.Nf3 Ng7 30.Rh6 Be8 31.Bc1 Bg6 32.Be3 Kf7 (better 32...Rf7-+) 33.Ng5-/+ Ke7 34.Nh7 Rh8 35.Rg6 Rh7 36.Bg5 (better 36.g4 Rf8 37.h4-/+) 36...Rg5?? (better 36...Kf7 37.Rh6 Rh6 (worse 37...Rg5 38.Rh7 Kg8 39.Rh6+=) 38.Bh6 Rh5 39.Bg7 Kg7-/+) 37.Rg5+= Nf5 38.h3 Rf7 0-1. alessandrocarvalhaes (1630) - martiallaw (1635), lichess.org, 2019.

5.a3 A) 5...Bd6 6.b5 (6.c4 dc4 7.Bc4 0-0 8.d3 a6 9.Qc2 e5 10.0-0 Qe7=) 6...Ne7 7.Bf6 gf6 8.c4 Rg8 9.cd5 Nd5 10.d4 Bd7=; B) 5...Bd7 6.Be2 (6.b5 Nb8 7.Be2 a6 8.ba6 Na6 9.Be5 Be7 10.Nc3 Ne4=) 6...Bd6 7.b5 Nb8 8.Be5 Be5 9.Ne5 a6 10.ba6 Na6=.

5.b5 Na5 6.Be2 (6.Bc3 c5 7.bc6 Nc6 8.Bb5 Bd6 9.0-0 0-0 10.Bc6 bc6+=) 6...Bd6 7.0-0 0-0 8.Bc3 c5 9.d4 a6 10.dc5 Bc5=.

5.Bb5 a6 (5...Bb4 A) 6.Ne5 Bd7 7.Bc6 (7.Nd7 Qd7 8.Bf6 gf6 9.c4 dc4 10.Qa4 0-0-0–/+) 7...Bc6 8.Nc6 bc6 9.0-0–/+ Bd6 10.Nc3 a6–/+; B) 6.a3 Bd6 7.Ne5 Be5 8.Be5 Bd7 9.Bc6 Bc6 10.Qf3 Rg8+=; 5...Bd7 6.c3 (6.a3 a5 7.ba5 Ra5 8.Be2 Bd6 9.Nc3 e5 10.Nb5 Bg4+=) 6...Bd6 7.0-0 a5 8.a3 0-0 9.d4 Nb8 10.Bd3 Qe7=) 6.Ba4 (6.Bc6!? bc6 7.Ne5 (7.c3= c5 8.0-0 Rb8 9.Ne5 Bd7 10.a3 a5+=) 7...c5 8.bc5 Bc5 9.0-0 Bb7 10.c4 0-0+=; 6.Bf6 Qf6 7.Bc6 bc6 8.c3 c5 9.bc5 Bc5 10.d4 Bd6+=) 6...Bb4 (6...b5 7.Bb3 Bb4 8.0-0 Bd6 9.a4 b4 10.a5 0-0–/+) 7.0-0 (7.Ne5 Bd7 8.Bc6 Bc6 9.Nc6 bc6 10.c4 Be7–/+) 7...d4?? (better is 7...b5 8.Bb3 Bd6 (8...0-0–/+ 9.a4 Na7 10.Na3 c6–/+) 9.Qe2 0-0 10.a4 b4–/+; 7...0-0 8.Bc6 bc6 9.Ne5 Bb7 10.Ng4 Be7–/+) 8.Nd4+= 0-0 9.Nf3 (better is 9.Bc6!? e5 10.Bf3 ed4 11.Bd4+/–) 9...b5= 10.Bb3 Bb7 11.d3 e5 (11...Qe7 12.e4=) 12.Nbd2 (12.Ne5 Ne5 13.Be5 Re8+=) 12...Bd2 (12...Qd6 13.e4+=) 13.Qd2= b4 (better is 13...Qd6!?=) 14.Ne5+/– Ne5 15.Be5 c5 16.e4 (16.a3 a5+/–) 16...Ne4 17.Qf4 Bd5?? (better is 17...Nf6+=) 18.Qg4 (18.de4 Bb3 19.ab3 Re8+–) 18...f6 (18...Nf6 19.Bf6 Qf6 20.Bd5 Rad8+–) 19.Bd5 (better is 19.Bc7! Qc7 20.Bd5 (20.de4?! Bf7=) 20...Kh8 21.Ba8 (worse is 21.Qe4 Rae8 22.Qc4 Qd6+–; worse is 21.de4 Rad8+–) 21...Nf2 22.Rf2 Ra8 23.Re2+–) 19...Qd5= 20.de4 Qe5 21.f4? (better is 21.Rfe1!?+=) 21...Qe4–+ 22.Rae1 Qc2 23.Re7 Rf7 (23...Qg6 24.Qe6 Kh8 25.Re1–+) 24.Qf3?? (better is 24.Rf7 Kf7 25.Qd7 Kg6 26.Qg4 Kh6 27.Qh4 Kg6 28.Qg4 Kf7 29.Qd7 Kg6 30.Qg4=) 24...Re7–+ 25.Qa8 Kf7 26.Qd5 Kf8 27.Rd1 (27.Qa8 Re8 28.Qa6 Qd2–+) 27...Qe2 28.Rf1 Qe3 29.Kh1 Qf4?? (better is 29...Re8–+) 30.Qd8+/– (30.Rf4?? Re1 31.Rf1 Rf1) 30...Kf7 31.Qe7! (31.Rf4?? Re1 32.Rf1 Rf1) 31...Ke7 32.Rf4 a5 33.Re4 Kd6 34.Re8 a4 35.Ra8 (35.Rb8 Ke5+/–) 35...a3 (35...b3 36.ab3 (36.Ra4?? b2 37.Ra6 Kc7–+) 36...ab3 37.Rb8=) 36.Ra7 (better is 36.Rb8!?+/–) 36...c4+= 37.Rb7?? (37.Ra8 Kd5=) 37...Kc5?? (37...b3 38.ab3 (38.Rg7 ba2 39.h4 a1Q 40.Kh2 Qe5 41.g3 Qe2 42.Kh3 c3–+) 38...a2 39.h4 a1Q 40.Kh2 Qe5 41.g3 cb3 42.Rb4–+) 38.Rg7?? (38.Kg1 b3 39.ab3= (39.Rg7?? ba2 40.Kf2 a1Q–+)) 38...c3?? (better is 38...b3 39.Rc7 Kb4 40.ab3 cb3 41.Rb7 Kc4 42.Rc7 Kd5 43.Rh7 b2 44.Rd7 Ke6–+) 39.Kg1 (39.Rh7 b3 40.Rc7 Kb4 41.Rb7 Kc4 42.ab3 Kd3 43.Rd7 Kc2 44.g4–+) 39...b3–+ 40.Rc7 (40.ab3?? a2 41.Ra7 c2–+) 40...Kb4 41.Rb7 Kc4 42.Rc7 Kd3 43.Kf2 (43.ab3 a2 44.Ra7–+) 43...ba2 44.Rd7 Kc2 0–1. mbeatini – raven_king, gameknot.com, 2014.

5.c3 A) 5...Bd6 6.d4 (6.b5 Ne5 7.Ne5 Be5 8.d4 Bd6 9.c4 0-0 10.c5 Be7=) 6...Ne7 7.Bd3 0-0 8.0-0 Bd7 9.Nbd2 a6 10.a4 Ra7=; B) 5...Bd7 6.Be2 (6.Ba3 a6 7.d4 Ne7 8.Bd3 Bb5 9.Bb5 ab5 10.0-0 Nf5+=) 6...Bd6 7.b5 Na5 8.Ba3 c5 9.bc6 Bc6 10.Bd6 Qd6=.

6.Be2 c6 7.a4 Bd7 8.0-0 cb5 (8...Ng6 9.Ne5=) 9.ab5+= Nc8 10.c4 (10.Ne5 Bd6+=) 10...Nb6 (10...dc4 11.Bc4 Nd6=) 11.c5 (11.d3 a6+=) 11...Nc4 (11...Bc5!? 12.Be5 Nc4=+) 12.Bc4 dc4 13.Qc2 (13.Bd4!? Qc8 14.Qa4+=) 13...Bb5=+ 14.d4? (14.Nd4 Ba6 15.c6=+) 14...Nd5?? (better 14...cd3!? 15.Qb3 Bc6-+) 15.Nbd2 (15.Na3 a6+=) 15...Be7 (better 15...c3 16.Bc3 Bf1 17.Nf1 b6-/+) 16.Nc4+= 0-0 17.Nce5?? (17.Rfb1 b6+=) 17...f6 (better 17...Bf1!? 18.Rf1 f6-/+) 18.Nc4 Bc6 19.Rfb1 b6 20.cb6 Nb6?? (better 20...ab6 21.Ba3 b5 22.Be7 Ne7 23.Ra8 Qa8=) 21.Nb6+- ab6? (21...Qb6 22.Ba3 Bf3 23.Rb6 ab6 24.gf3 Ra3 25.Ra3 Ba3+-) 22.Ra8 (better 22.Qc6 Kf7 23.Rc1+-) 22...Ba8 23.Bc3 Bd5 (better 23...Qc7 24.Qb2 Rb8=+) 24.Rb6?? (better 24.e4 Bb7 25.Nd2+=) 24...Qb6-+ 25.h3 (25.e4 Bb7 26.Bd2 f5-+) 25...Bb4 (25...Qc6!? 26.Qd3-+) 26.Bb2 (26.Bb4 Qb4 27.Nd2 Ra8-+) 26...Ba5 (26...Qc6 27.Qc6 Bc6 28.d5 Bd5 29.Nd4-+) 27.Ba3 Rb8 28.Ne1 (28.Nd2 Bd2 29.Qd2 Qb1 30.Kh2 Ra8-+) 28...h6 (better 28...Be1!? 29.Qe2 Qb1 30.Kh2-+) 29.Nd3 (29.e4 Ba8 30.Nf3 Qb1 31.Qb1 Rb1 32.Kh2 Be4-+) 29...Qb3 30.Qc7 (30.Qb3 Rb3 31.Nf4 Ra3 32.Nd5 Ra1 33.Kh2 ed5-+) 30...Kh7 (30...Qd1 31.Kh2 Bc7 32.Bd6 Bd6 33.Nf4 Qf1 34.f3 Rb2 35.Kg3 Qg2 36.Kh4 Qg5) 31.Qa5 (31.Qg3 Rb7 32.Nf4 Qa3 33.Qg6 Kg8 34.Nd5 Qc1 35.Kh2 ed5-+) 31...Qb1 (better 31...Qd3 32.Bb4 Ra8 33.Qa8 Ba8 34.Bd6-+) 32.Kh2 (32.Ne1 Ra8 33.Qb4-+) 32...Qd3 33.Qc7 Rg8 (better 33...Rb7!? 34.Qf4 Qa3 35.e4-+) 34.Bd6 (34.Be7 Ra8 35.f3 f5-+ (worse 35...Qe3 36.Bf6 Rg8 37.Be5-+)) 34...Qf5 (34...Qe4 35.f3 Qe3 36.Qc2 Kh8 37.Qb2-+) 35.Bg3 (35.f3 Ra8 36.e4 Be4 37.fe4 Qe4-+) 35...e5! 36.Qd6 (36.de5 fe5 Combination) 36...ed4 37.ed4 1-0. fishissushi (1805) - cascando (1795), Rated Classical game, lichess.org, 2020.

6.Be2 Bd7 7.0-0 c6 8.a4 cb5 9.ab5 Qb6 10.Nc3 (10.Bd4 Qd6+/-) 10...Ne4 (10...Qc7!?+=) 11.Ne5+/- Nc3 12.Bc3 Bb5? (better 12...Nf5+/-) 13.Rb1 (better 13.Qb1 Ba6 14.Qb6 ab6 15.Bb5 Nc6 16.Nc6+-) 13...a6 (13...Be2 14.Qe2 Qc7 15.Qb5 Nc6 16.Nc6 bc6 17.Qa6=) 14.Bd4 (14.Bb5 ab5 15.Qe2+=) 14...Qa5 (better 14...Be2 15.Qe2 Qc7=+) 15.Bb5+/- ab5 16.Qf3 (16.Qh5 Ng6+/-) 16...f6 (16...Nf5 17.Nf7 Kf7 18.g4 Qd2 19.gf5 Qc2 20.Qh5 Ke7 21.Qg5 Kd6 22.Qf4 Ke7 23.Rb5 Qf5 24.Rb7 Ke8 25.Qf5 ef5 26.Rfb1+= (26.Bg7? Rg8-+)) 17.Nd3 (17.Ra1!? Qd8 18.Ra8 Qa8 19.Qh5 g6 20.Ng6 Ng6 21.Bf6=) 17...Nf5 Black plans b4 (17...Qd2 18.Rfd1 Qa5 19.Nf4+=) 18.Bc3 (18.Nf4 Kd7 19.Qh5 Be7+=) 18...b4 (18...Qc7 19.Rb5 Bd6 20.Rfb1 Bh2 21.Kh1+=) 19.Ba1 (19.Nb4!? Qd8 20.e4 de4 21.Qe4+/-) 19...Be7 20.e4 Nd4?? (better 20...Nd6 21.e5 Ne4 22.Qh5 g6=) 21.Qh3 (better 21.Bd4 Rc8 22.Nf4 de4 23.Qe4+-) 21...Nc2 (21...Ne2 22.Kh1 de4 23.Nb4 Qg5-/+ (worse 23...Bb4 24.Qe6 Kd8 25.Qe4+=)) 22.Qe6=+ Qc7 (22...Qa6 23.ed5 Kd8= (23...Na1?? 24.Ra1 Kd8 25.Ra6 Ra6 26.Qg4+-; 23...Qd3 24.Rfe1 Ne1 25.Re1+-)) 23.ed5 Qd6 24.Qd6 (24.Qg4 A) 24...Na1? 25.Qg7 (25.Ra1?! 0-0=) 25...Kd7 26.Qg4 Ke8 27.Ra1+-; B) 24...Qd5 25.Qg7 Rg8=) 24...Bd6=+ 25.Bd4?? (better 25.Rfc1 Na1 26.Ra1=+) 25…Nd4-+ 0-1. Malolin – Yannyi, Rated Classical game, lichess.org, 2013.

6.Be2 Nf5 7.0-0 Bd6 8.Be5 Nh4 9.Bd6 Nf3 10.Bf3 Qd6=.

6.Bf6 gf6 7.d4 Rg8 8.Rg1 Nf5 9.c4 Bb4 10.Nbd2 e5+=.

6.Bf6 gf6 7.Be2 Bd7 8.0-0 a6 9.a4 (better 9.ba6 ba6 10.d4+=) 9...ab5-/+ 10.Nc3 (10.a5 c6-/+) 10...b4 (10...ba4!? 11.Qb1 b6-+) 11.Nb5-/+ Bb5 (11...e5 12.d4 e4 13.Nd2-+) 12.Bb5 (12.ab5 Rg8 13.Ra8 Qa8 14.d4=) 12...Nc6 (12...c6 13.Be2=+) 13.Bc6 (better 13.a5!? Ke7 14.a6+=) 13...bc6=+ 14.Nd4 (14.c3 c5=+) 14...Qd6 15.Qf3 Bg7 16.Qg4 Rg8 17.Qe2 e5 (17...f5!? 18.Ra2 f4=+) 18.Nf5= Qe6 19.Ng7 Rg7 20.c3 (20.Rfb1 Qd6=) 20...Kd7 (better 20...bc3!? 21.dc3 Ra5=+) 21.cb4+= Rag8 22.g3 Qd6 23.Qf3 Rg6 24.Qf5 Ke7 25.b5 cb5 26.ab5 Rg5 (26...Rb8 27.Rfb1+=) 27.Qf3 (27.Qh7 R5g7 28.Qc2 Rb8+-) 27...e4 28.Qg2 Qc5 29.Rac1 Qb6 30.Rfe1 (better 30.d4+=) 30...Kd6?? (30...Kd8=) 31.Rf1 (better 31.Rc6 Qc6 32.bc6+-) 31...Qb5=+ 32.Qh3 Qd7 33.Qg2 Qg4 (33...f5 34.f3=+) 34.h3 (34.f3 Qh4 35.fe4 (35.gh4? Rg2 36.Kh1 Rd2 37.fe4 Rgg2 38.Rf6 Ke5 39.Rf7 Ke4-/+) 35...Rg3 36.hg3 Rg3 37.Rf6 Ke5 38.Rf5 Ke6 39.Rf4 (39.ed5?? Kf5 40.Rc7 Rg2 41.Kg2 Qe4 42.Kf2 Qd5-+) 39...Rg2 40.Kg2=) 34...Qh5 35.g4?? (35.Rc3 c5=+) 35...Qh4?? (better 35...Rg4 36.hg4 Rg4 37.Qg3 Rg3 38.fg3 Qh3 39.Rf6 Ke7-+) 36.Qg3 (better 36.f3=+) 36...Ke6?? (better 36...Qg3 37.fg3 f5-/+) 37.Qh4 (37.Rc6 Kd7 38.Qc7 Ke8 39.Qb8 Ke7 40.Qd6 Ke8 41.Rc8) 37...Rg4 (37...h5+-) 38.hg4 Rg4 39.Qg4 f5 40.Qg3 (40.Qg5 f6 41.Qg8 Kd7 42.Qf7 Kd8 43.Rb1 c5 44.Rb8) 40...Kf6 (40...c5 41.Rc5 f4 42.Qg4 Ke7 43.Rc7 Kf6 44.Qf4 Ke6 45.Rc6 Ke7 46.Qd6 Ke8 47.Rc8) 41.Qg2 (41.Rc6 Ke7 42.Qc7 Kf8 43.Qd8 Kg7 44.Qf6 Kf8 45.Rc8) 41...Ke6 (41...Ke7 42.Rc7 Kd6 43.Qh2 f4 44.Qf4 Ke6 45.Rc6 Ke7 46.Qd6 Ke8 47.Rc8) 42.Qh3 (42.Rc6 Ke7 43.Rc7 Kd6 44.Qh2 f4 45.Qf4 Ke6 46.Rc6 Ke7 47.Qd6 Ke8 48.Rc8) 42…Ke7 (42...Ke7 43.Rc7 Ke6 44.Qh6 f6 45.Qh7 f4 46.ef4 e3 47.Qd7). Mustanglx - r0drigor, Rated Classical game, lichess.org, 2019.

5.c3 Bb4 6.Qa4 Nc6 7.Bb5 Bd7 8.Bc6 Bc6 9.Qb4 a5 10.Qa3 (10.Qg4 h5 11.Qg3 0-0-0+-) 10...b5 (10...Qg5!? 11.g3 d4+/-) 11.Qc5+- Bd7 (11...e5 12.Na3 Qd6 13.Qd6 cd6 14.Rb1+-) 12.Nf3 Qe7 (12...Rc8 13.a4! ba4 14.0-0+-) 13.Qc7 0-0 14.0-0 b4 15.cb4 (15.Ne5 Rfd8+-) 15...ab4 (15...Rfc8 16.Qe5 Bb5 17.Re1 ab4 18.Qb2+-) 16.Qg3 (16.Ne5 Qf6 17.Nd7 Qa1 18.Nf8 Rf8+-) 16...Qf6 17.d4 Rfc8 (17...b3 18.a3+-) 18.Ne5 (18.Nbd2!? Bb5 19.Rfb1 Bd3 20.Rb4 Qe7+-) 18...Bb5 19.Re1 b3 20.Nd2 ba2 21.h4 Rc2 22.Nb3 Ba4 23.Nc5 g6 (23...Bb5 24.e4+-) 24.Na4 (24.Ng4!? Qe7+-) 24...Ra4 25.h5 Qf5 (25...Ra8 26.Nd7 Qe7 27.Nc5+-) 26.hg6 (26.Ng4 Kf8 27.e4 Qg5 28.Qb8 Ke7+-) 26...hg6 27.Nd7 (27.Ng4!? Qg5+-) 27...Rb4+/- 28.Qh4 (28.Qh4 g5 29.Qg3+=) 1-0. euderlevi (1910) - muhammadaudii (1905), Rated Classical game, lichess.org, 2020.

5.c3 Bd6 6.d4 (6.Qf3 Qf3 7.Nf3 e5=+) 6...0-0 (6...e5 7.Nf3 e4 8.Nfd2–/+) 7.Nf3 (7.Qf3 Nd7=+) 7...h6 (7...Nd7 8.Qb3–/+) 8.Bd3 e5 (8...Nd7 9.e4 e5 10.ed5 ed4 11.Nd4 Re8 12.Be2=+) 9.de5= Be5 10.Ne5 Qe5 11.0-0 Bf5 (11...a5 12.ba5 Re8 13.Qf3=) 12.Bf5 (12.Qh5 g6 13.Qe2 Nd7=) 12...Qf5 13.Nd2 (13.Qd4 Re8=) 13...Qe5 (13...Re8 14.Qf3 Qf3 15.Nf3=) 14.Nf3 Qc3 (14...Qe4=) 15.a3 Qf6 16.Nd4 Nd7=+ 17.Nb5 c6–/+ 18.Nd4 Ne5 19.f4 Nc4–+ 20.a4? Ne3 21.Qe2 Nf1 22.Rf1 Qd4 23.Kh1 Qb4 24.f5 f6 25.g4 c5 26.g5 fg5 27.f6 Qe4 28.Kg1 Qe2 29.fg7 Kg7 30.Rf8 (30.Rb1 Qg4 31.Kh1 Qe4 32.Kg1 Qb1 33.Kg2 Qf1 34.Kg3 Qf3#) 0–1. badboy1221 – Beachbum, Live Game Caissa's Web, 2005.

5.Nc3 c5 6.b5 (6.bc5 Bc5 7.Qf3 Be7=+) 6...d4 (6...Bd6 7.Nf3=+) 7.Ne4= Qe5 8.Ng3 de3 9.Rb1? (better 9.fe3 Bd6 10.Nf3=+) 9...ef2 (9...ed2 10.Kd2 Qd5 11.Ke1 Qa2 12.Nf3-+) 10.Kf2 Bd6 11.Qe2 Qf4 12.Ke1 (12.Nf3 Nd7-/+) 12...0-0 13.Nh3 Qa4 14.Ne4 (14.Qc4!? Qa3 15.Ne4-/+) 14...Qc2 15.Rd1 Be7 16.Nhg5? (16.d4 Qe2 17.Be2 cd4 18.Rd4 e5-+) 16...Bg5 (better 16...Qa2!? 17.Qh5 h6 18.Nc3-+) 17.Ng5 Qa2 18.Qd3 (18.Qe4 g6-+) 18...g6 (18...f5 19.Qc4 Qc4 20.Bc4-+) 19.Qh3 h5 20.Ne4 e5 (20...Nd7 21.Qe3-+) 21.Nf6 (21.Qc3 Nd7 22.Bc4 Qa4-+) 21...Kg7 22.Nh5 (22.Qf3 Qa4 23.g3 e4-+) 22...gh5 23.Qh5 Qe6 24.Bd3 (24.Qg5 Kh8-+) 24...Qh6 (24...e4!? 25.Bc4 Qe7 26.Rf1-+) 25.Qe5 f6 (25...Qf6 26.Qg3 Kh8 27.Qe3-+) 26.Qg3 (26.Qc5 Bg4 27.Qc7 Kh8-+) 26...Qg5 27.Qc7 (27.Qe3 A) 27...Qg2 28.Rg1 Qg1 29.Qg1 Kf7 30.Bg6 (30.Qc5?! Nd7 31.Qd5 Ke7+-) 30...Ke6 31.Qc5+-; B) 27...Bg4 28.Rc1 Nd7 29.Qe7 Rf7-+) 27...Kh6 (better 27...Rf7 28.Qg3 Qg3 29.hg3 Bg4 30.Rh7 Kg8 31.Rf7 Kf7-+) 28.Qh7 1-0. FelixMart – DG, Rated Classical game, lichess.org, 2020.

5.Nc3 Nc6 6.b5 Na5 7.a4 (7.Qf3 Be7=+) 7...Bb4-/+ 8.Nce2 Nc4 9.c3 Nd2?? (better 9...Bd6=+) 10.Kd2 (better 10.cb4 Nf1 11.Kf1+-) 10...Bc3?? (better 10...Ba5 11.Nf3 e5+/-) 11.Nc3+- Qf2 12.Nge2 c6 13.Qe1 Qe1 14.Re1 cb5 (14...e5 15.bc6 bc6 16.Rb1+-) 15.Nb5 0-0 16.Ned4 a6 17.Nd6 (better 17.Nc7 Rb8 18.a5 Bd7+-) 17...Rb8 (17...Rd8 18.Nc8 Rac8+-) 18.Rb1 Bd7 19.e4 (better 19.a5!? e5 20.Nf3 f6 21.Rb7 Rb7 22.Nb7 Rb8 23.Ba6 Bc8+-) 19...Ba4 (19...de4 20.Rb7 Rb7 21.Nb7+-) 20.ed5 ed5 (20...b5 21.de6 fe6 22.Re1+-) 21.N6f5 (better 21.Nb7!? Ra8+-) 21...g6 22.Nh6 (better 22.Ne7!? Kg7 23.Bd3 Rfd8+-) 22...Kg7 23.Ng4 f5? (23...b5 24.g3 Rfc8 25.Ne3+-) 24.Ne5 (better 24.Ne6 Kf7 25.Nf8 Kf8 26.Ba6 fg4 27.Rb7 Ra8+-) 24...Be8 (24...Rfe8 25.Nd3 Re4 26.Rb4+-) 25.Be2 (25.Ne6 Kg8 26.Nf8 Kf8 27.Ba6 b5+-) 25...Kf6 (25...Rf6 26.Rhc1 b5 27.Rc7 Kg8 28.Nec6 Bc6 29.Nc6+- (worse 29.Rc6 Rb6 30.Bf3 Rfc6 31.Bd5 Kg7 32.Nc6 Kf6+-)) 26.Nef3 (better 26.Rb6!? Ke7 27.Rc1 Rf6 28.Rc7 Kd8 29.Rbb7 Rb7 30.Rb7 h6+-) 26...Bd7? (26...b5 27.Ng5! Rh8 28.Nge6+-) 27.Ne1 (better 27.Rb6 Kg7+-) 27...b5 28.Bf3 Be6 (28...Rb6 29.Nec2 (29.Bd5?! Rd6=) 29...Rd6 30.Nb4+-) 29.Nc6 (better 29.Nd3!? Rb6+-) 29...Rbc8 (29...Rb6 30.Rc1 g5 31.Nd3+-) 30.Nb4 d4 (30...a5 31.Nd5 Bd5 32.Bd5+-) 31.Nd5 (better 31.Na6!? Bc4+-) 31...Bd5 32.Bd5 Ke5? (32...Rcd8 33.Bb7 Rb8 34.Bf3+-) 33.Bf3 (33.Bb7 Rc7 34.Ba6 Ra7 35.Nf3 Kf4 36.Bb5 Ra2 37.Kd3 Rg2+-) 33...Rfd8 (33...Rcd8 34.Nd3 Kf6 35.Bb7+-) 34.Nd3 (34.Bb7 Rb8 35.Ba6 Rd5+-) 34...Kd6 (34...Kf6 35.Bb7 Rc4 36.Ra1+-) 35.Rhe1 (35.Ra1 Rd7 36.Ra6 Ke7+-) 35...Rc3 (35...Rd7+-) 36.Ra1 Rb3 (36...Kd7+-) 37.Ra6 Kc7 38.Ra7 (38.Re7 Rd7 39.Ra7 Kb6 40.Red7 Rd3 41.Kd3 Kc5 42.Ra6 Kb4 43.Rd4 Kb3 44.Bd5 Kb2 45.Rb4 Kc1 46.Ra1) 38...Kb6 (38...Kd6+-) 39.Rh7 (39.Rh7 Rd3 40.Kd3+-; 39.Rb7 Ka5 40.Ra1 Ra3 41.Ra3) 1-0. FelixMart - Isaac_8, Rated Classical game, lichess.org, 2020.

5.Nc3 Bd6 6.Rb1 (6.Nb5 e5=) 6...0-0 7.b5 (7.Nb5 e5=+) 7...Nd7 8.a4 a6 9.Na2? (better 9.ba6!? b6 10.Nb5-/+) 9...ab5-+ 10.Bb5 Nb6 (10...c6!? 11.Be2-+) 11.Nc3-/+ Nc4 (11...Qg6 12.g3-/+) 12.Nf3 (12.Bc4 dc4 13.Qg4 e5 14.Qc4 Qg6=+) 12...c6 (better 12...Na3 13.Rb2 Nb5 14.ab5 Bd7-/+) 13.Bc6?? (better 13.Bc4 dc4 14.0-0=) 13...bc6-+ 14.d3 (14.0-0 e5 15.h3 Ba6-+) 14...Ne5 (better 14...Qc3 15.Kf1 Na3-+) 15.Ne5 Be5 16.Ne2 (16.d4 Bc7-+) 16...Ba6 (16...Ra4!? 17.0-0-+) 17.0-0 Qh4 18.f4 Bb8 19.Nd4 Ba7 (better 19...c5 20.Nc6 c4-+) 20.Nc6?? (better 20.Qe1 Qe1 21.Rfe1 (worse 21.Rbe1 Rfc8-+) 21...Bd4 22.ed4-+) 20...Be3 21.Kh1 Bf4 22.h3 Qg3 23.Kg1 Qh2 24.Kf2 Bg3 25.Ke2 (25.Ke3 Bd6 26.Qg4 Bc5 27.Kd2 Qc7-+) 25...Qg2 26.Ke3 f5 (better 26...Bh4 27.Rf3 d4 28.Kd4 Rfc8-+) 27.Rg1 (27.Qe2 Qh3 28.Rh1-+) 27...f4 (27...Qf2) 28.Kd4-+ Bf2 29.Kc3 (29.Ke5 Bg1 30.Qg1 Qc2-+) 29...Bg1 (29...d4 30.Nd4 Rfc8 31.Kb3 Bg1 32.Qe2 Qb7 33.Nb5 Bb5 34.Qe6 Kh8 35.Qc8 Rc8 36.Ka3 Qe7 37.Rb4 Rc3 38.Kb2 Qb4 39.Kc1 Be3 40.Kd1 f3 41.ab5 Qb1) 30.Qg1 d4! 31.Kd4 (31.Kd4 Qg1 Double attack (31...Qc6 Discovered attack; 31...Qc2 Deflection; 31...Qh3 Zwischenzug); 31.Nd4 Rac8 Deflection (31...Qh3 Zwischenzug); 31.Qd4 Qc6 Discovered attack (31...Qc6 Deflection; 31...Qh3 Zwischenzug)) 31...Qc6 32.Qg5 Rad8 33.Ke5 (33.Qd8 Rd8 34.Ke5 Qc5 35.Kf4 Qf2 36.Ke4 Rd4 37.Ke5 Qe3) 33...Rf5 (33...Qd5) 34.Qf5 ef5 (34...Qc5 35.Kf4 Qf2 36.Kg4 ef5 37.Kh5 g6 38.Kg5 Qe3 39.Kf6 Rd6) 35.Kf4-+ Qd6 (35...Qd6 36.Ke3 Qg3 37.Kd2 Qf2 38.Kc3 Rc8 39.Kb4 Qb6 40.Ka3 Qb1 41.c4 Rb8 42.d4 Qb3; 35...Qc2 36.Re1 Qf2 37.Kg5 Qg3 38.Kf5 Bd3 39.Re4 Rd5 40.Ke6 Qd6) 0-1. FelixMart - n_fontao, Rated Classical game, lichess.org, 2020.

5.Nf3?? Qa1-+ 6.a3 Qa3 (better 6...a5 7.c3-+) 7.Bd3?? (better 7.Na3 Bb4 8.Nb5+-) 7...Qb4-+ 8.Nc3 Qa5 9.0-0 Bb4 10.Ne5 (10.Ne2 Nd7-+) 10...Bc3 11.dc3 Qc3 12.f4 Nd7 13.Qh5 Ne5 (better 13...g6 14.Qf3-+) 14.Qe5 (14.fe5 Rf8-+) 14...Qe5 15.fe5 Bd7 16.c3 0-0 17.Rf2 c5 18.h3 b5 19.Be2 (19.e4 a5-+) 19...a5 Black plans b4 20.Rf1 a4 21.Ra1 a3 22.e4 b4 23.cb4 cb4 24.ed5 ed5 25.Kh2 Be6 26.Bf3 b3 Black intends a2 27.Bd1 b2 28.Rb1 Rfb8 29.Be2 a2 30.Rb2 Rb2 (30...Rb2 31.Bf3 a1Q 32.Kg3 Qe1 33.Kf4 Ra4 34.Be4 Qe4 35.Kg5 Qe5) 0-1. Mustanglx – Kondybovich, Rated Classical game, lichess.org, 2020.

6.Nc3 Qa3 (better 6...Qd1 7.Kd1 c6 8.Nb1-+) 7.Be2?? (better 7.Nb5 Qb4 8.Nc7 Kd8 9.Na8-/+) 7...Qb4 8.Nf3 Qe7 9.0-0 Bd7 10.Ne5 g6 11.Nd7 Nd7 12.Bb5 (12.Nb5 Nf6-+) 12...Bg7 13.Bd7 Qd7 14.Ne2 0-0 15.Nf4 c5 16.h3 b5 17.d4 c4 18.c3 (18.Qa1 a5-+) 18...a5 19.Ne2 b4 20.f4 (20.Qc2 Rfb8 21.cb4 ab4-+) 20...b3 21.Qb1 a4 22.Qb2 (22.Re1 a3 23.e4 de4-+) 22...a3 23.Qb1 a2 24.Qb2 Qa4 25.Ra1 Rfc8 (better 25...Qa3 26.Qa3 Ra3 27.Kf2-+) 26.Nc1 Qc6 (better 26...Qa3 27.Qa3 Ra3 28.Na2-+) 27.Na2 (27.e4 Qd6 28.Na2 Qa3-+) 27...ba2 (better 27...Qa4!? 28.Qc1-+) 28.Ra2 Ra2 29.Qa2 Ra8 30.Qb2 Qa4 31.Kh2 Qa2 32.Qa2 (32.Qc1 Ra3-+) 32...Ra2 33.Kg3 Rc2 34.Kf3 Rc3 35.g4 Rd3 (better 35...Bd4 36.Ke2 Re3 37.Kd2 c3 38.Kc2 Re2 39.Kd1 Rg2 40.Kc1 Be3 41.Kb1 c2 42.Kb2 c1Q 43.Kb3 Rb2 44.Ka4 Qa1) 36.h4 Ra3 (36...c3 37.Kg3 c2 38.h5 Re3 39.Kf2 c1Q 40.hg6 Qd2 41.Kf1 Re1) 37.g5 c3 38.h5 (38.Kg2 c2 39.h5 c1Q 40.hg6 Qd2 41.Kf3 Qe3 42.Kg2 Ra2 43.Kf1 Qc1) 38...c2 39.hg6 (39.Kf2 c1Q 40.hg6 Qe3 41.Kf1 Ra1 42.Kg2 Ra2 43.Kf1 Qc1) 39...fg6 40.f5 (40.Kg3 c1Q 41.Kg2 Qd2 42.Kf3 Qe3 43.Kg2 Ra2 44.Kf1 Qc1) 40...c1Q 41.fe6 (41.fg6 Qe3 42.Kg2 Ra2 43.Kf1 Qf2) 41...Qc7 (41...Qe3 42.Kg2 Ra2 43.Kf1 Qf2) 42.e7 (42.Kg2 Qc2 43.Kf3 Qd2 44.Kg4 Qe3 45.e7 Qd4) 42…Qe7 (42...Qe7 43.Kf2 Qe3 44.Kf1 Qd2 45.Kg1 Ra1) 0-1. Mustanglx – nenetico, Rated Classical game, lichess.org, 2020.

6.Nf3 Qf6 7.Bb5 (7.d4 Bd7-+) 7...c6 8.Ba4 a6 9.Bb3 b5 10.0-0 a5 11.ba5 Ra5 12.d3 Ba3 13.Qd2 Ra8 14.Nc3 (14.Na3 Ra3 15.Qb4 Qe7-+) 14...b4 15.Ne2 0-0 16.Ng3 Nd7 17.Nh5 Qe7 18.Ng3 g6 19.c4 bc3! 20.Qc3 c5 21.h3 Nf6 22.Ng5 Nd7 23.Nf3 f6 24.Nd2 e5 (24...Bb4 25.Qc2-+) 25.f4?? (better 25.Bd5 Kg7 26.Ba8=) 25...e4! 26.f5?? (26.Nde4 Bb7 Decoy; 26.de4 c4 Passed pawn; 26.Nge4 Bb7 Decoy) 26...g5 (26...Nb6 27.de4 Bb4 28.Qc1-+) 27.Nh5?? (27.Bd5!? Kh8 28.Ba8-/+) 27...Ne5 (better 27...Bb7 28.de4 Bb4-+) 28.Bd5 Kh8 29.Bb3?? (better 29.Ba8 Bb4 30.Qb2 Nd3 31.Qa2 Bd2 32.Qd2-+) 29...Bb4 30.Qc2 Bd2 (30...ed3!? 31.Qc1-+) 31.Qd2 Qd7 (31...Nd3 32.Bc4-+) 32.Nf6 (32.d4 cd4 33.Qd4 Qd4 34.ed4 Nd3-+) 32...Qd3 (better 32...Rf6 33.Qc3 Qd6 34.de4-+) 33.Qd3 Nd3 (better 33...ed3 34.Ng4 Ng4 35.hg4-+) 34.Nh7 (34.Bd5 Ra4 35.Ne4 Rf5 36.Rf5 Bf5 37.Ng5 Ra1 38.Kh2-+) 34...c4 (better 34...Kh7 35.Bd5 Ra4 36.g4-+) 35.Bc4 (35.Bc4 Kh7 36.Bd5-+). Mustanglx - Mr_MM, Rated Classical game, lichess.org, 2019.

6.Rb1 Ba5 7.Nb5 c5 (7...a6 8.Nd4-+) 8.Nf3 (8.Nd6!? Kd7 9.Nc8 Kc8 10.c4-/+) 8...0-0 (8...e5 9.c4 Bf5 10.Qa4-/+) 9.Bd3 (9.Nd6 b6-/+) 9...Nc6 (9...e5 10.Be2-+) 10.a4 (10.0-0 Rd8-+) 10...c4 11.Be2 Bd7 12.Nfd4 (12.0-0 Rfb8-+) 12...Nd4 13.Nd4 c3 (13...e5 14.Nb5-+) 14.d3 (14.0-0 b6 15.dc3 Ba4-+) 14...Ba4 (14...b6 15.Ra1-+) 15.Rb7 (15.Ra1 b5 16.Nb5 Bb5 17.Ra5 a6-/+) 15...Rab8 (better 15...e5!? 16.Qa1 ed4 17.Qa4 Bb6-+) 16.Ra7-/+ Bb6?? (better 16...Ra8 17.Ra8 Ra8-/+) 17.Ra4+- Bd4 18.ed4 (18.Rd4 Rb2+-) 18...Rb7 19.Qa1 Rfb8? (19...Rb2 20.Qa3 Rc2+-) 20.Qc3 Rb1 21.Bd1 Qf4 22.Qc6 (22.0-0 R1b7+-) 22...Qc1?? (better 22...Qg4 23.Kd2 Qg2+=) 23.0-0?? (better 23.Ke2 Qf4+-) 23...Qg5 (better 23...Qd1 24.h3 Qf1 25.Kh2 Qh1 26.Kg3 Rg1-+) 24.Ra8 Rd8 (24...Qd8 25.Rb8 Rb8 26.Qc3+-) 25.Rd8 (25.Qe8! Re8 26.Re8) 25...Qd8+- 26.c4 Rb6 27.Qc5 dc4 28.Qc4 Rd6 29.d5! Rd5 (29...Rd5 30.Be2 Combination; 29...ed5 30.Qd4 Combination) 30.Bf3 (30.Be2 h6+-) 30...Rd3 31.h3 Rd4 32.Qc5 h6 33.h4! Rh4 (33...Rh4 34.Ra1 Combination; 33...Qh4 34.g3 Decoy) 34.Qe5 (34.Rd1 Qf6+-) 34…Rd4 0-1. FelixMart - C_ker, Rated Classical game, lichess.org, 2020.

6.Rb1 c5 7.Nb5 Na6?? (7...Qe7 8.Nf3-/+) 8.Nf3?? (better 8.c3 Qe7 9.cb4 Nb4 10.Nc3+/-) 8...0-0-/+ 9.Ne5?? (better 9.a3 Ba5 10.Nd6-/+) 9...Qe5-+ 10.Qg4 (10.c3 Ba5-+) 10...Ba5 11.Bd3 (11.Be2 c4-+) 11...Qf6 12.Qh3 g6 13.Nd6 e5 (13...Nb4!? 14.a3 Nd3 15.cd3-+) 14.Nc8 Rac8 15.Rb7 c4 16.Be2 Bb6 (better 16...Nc5 17.Rb1-+) 17.g4 (17.Rd7-+) 17...Nc5 18.Rd7 (18.Rb6 Qb6 19.Bd1 Qa5-+) 18...Nd7 19.g5 Qe6 (19...Qe7 20.Bf3 e4 21.Bg4-+) 20.Qe6 (20.Bg4 Qe7 21.Bd7 Rb8-+) 20...fe6 21.h4 (21.Bg4 Kf7-+) 21...Kg7 (21...Rb8 22.0-0-+) 22.h5 (22.Bg4 Nc5 23.f3 Rb8-+) 22...Rh8 (22...Bd8 23.Bg4 Nc5 24.hg6 Kg6 25.Ke2-+) 23.hg6 (23.h6 Kf7 24.Rh3 Rc5-+) 23...hg6 24.Rg1 (24.Rh8 Rh8 25.a3 Rh1 26.Bf1 Bd8-+) 24...Nc5 25.d3 (25.Bf1-+) 25...cd3 26.cd3 Na4 (better 26...Nd3 27.Bd3 Rc1 28.Kd2 Rg1 29.Kc3-+) 27.d4 Rc1 28.Bd1 ed4 (28...Ba5 29.Kf1 Rh2 30.Ke2-+) 29.ed4 Nc3 (29...Ba5 30.Kf1 Rh2 31.Ke2 Nc3 32.Kf3-+) 30.Kd2 Rd1 (30...Rd1 31.Rd1 Nd1 32.Kd1 Rh2-+) 0-1. FelixMart – arumugaabinesh, Rated Classical game, lichess.org, 2020.

6.Nb5 Ba5-+.

6.Nb5 a6?? 7.Nc7+- Kd7 (7...Kd8 8.Na8 b5 9.Nb6+-) 8.Na8 Bd2 (8...Bc5 9.Rb1+-) 9.Kd2 Qf2 10.Qe2 Qf6 11.Rb1 Nc6 Black intends d4 (11...Ke7 12.Nb6 Nd7 13.Qd3 Nb6 14.Rb6+-) 12.Nb6 Ke7 (12...Kd8 13.Nf3+-) 13.Nc8 Kd7 (13...Rc8 14.Rb7 Kf8 15.Qf3+-) 14.Nb6 (better 14.Rb7 Ke8 15.Qa6+-) 14...Ke7 15.Nf3 d4 (15...Rd8 16.Qd3+-) 16.Nd4 (better 16.ed4!? Rd8 17.c3 Qg6+-) 16...Nd4 17.ed4 Qd4 18.Kc1 Rd8 19.Nc4 (19.g3 Qc5 20.Bg2 Qg5 21.Kb2 Qc5+-) 19...Qf4 (19...b5 20.Nd2+-) 20.Kb2 (20.Qe3!? Qe3 21.Ne3 Rd7+-) 20...b5 21.Ne5 (21.Qe3 Qd4 22.Qd4 Rd4+-) 21...Qd4 (21...Qb4 22.Ka1 Qc3 23.Rb2 Rd2+-) 22.Kc1 (better 22.c3 Qc5 23.Re1+-) 22...Qf4= 23.Kb2 Qd4 24.c3 Qa4 (24...Qc5 25.Re1 f6 26.Nd3+-) 25.Nc6 Kd7 26.Nd8 Kd8 27.Qd3 Ke7 28.Qh7 (28.Rd1 Qa5 29.Qd6 Ke8 30.Qc6 Kf8+-) 28...b4 29.Qh4 Kf8 30.Qb4 Qb4 31.cb4 1-0. FelixMart - mike137911, Rated Classical game, lichess.org, 2020.

6.Nb5 Na6 7.c3 Ba5?? 8.Nd4?? (better 8.Qa4 c6 9.Qa5 cb5 10.Bb5 Bd7 11.Rb1+=) 8...0-0 (8...Nc5 9.Qf3-/+) 9.Ba6 ba6 10.Ngf3 (10.Qf3 Qe7=+) 10...c5 11.Nc6 Bb6 12.g4 (better 12.Rb1-/+) 12...Bb7?? (better 12...Re8 13.Nce5 Qe7-/+) 13.g5+- Qg6 (13...Qf3 14.Ne7 Kh8 15.Qf3 Rae8 16.Nd5 ed5+-) 14.Ne7 (14.Ne7 Kh8 15.Ng6 fg6 16.d4+-) 1-0. FelixMart - SD124622, Rated Classical game, lichess.org, 2020.

6.Nb5 Na6 7.c3 Be7 8.Nd4 0-0 (8...e5!? 9.Nb3-+) 9.Ba6-/+ ba6 10.Ngf3 (10.Nc6 e5 11.Ne7 Qe7-/+) 10...Bb7 (10...e5 11.Ne2-+) 11.Qa4 c5 (11...e5 12.Ne2-/+) 12.Nc6 Bd6 13.Nfe5?? (better 13.Rb1 Bc6 14.Qc6=+) 13...Be5-+ 14.Ne5 Qe5 15.Qd7 Rab8 16.a4 (16.d4 Qe4 17.0-0 c4-+) 16...Rfd8 17.Qe7 Bc6 Black prepares d4 (better 17...d4!? 18.0-0-+) 18.Qc5 Be8 (18...Ba4 19.f4 Qf6 20.Qa7-+) 19.Qa7 (19.0-0 Rb2-+) 19...Qg5 (19...Ba4 20.0-0 Bb5 21.Rfb1-+) 20.g3 (20.0-0 Ra8 21.Qd4 e5-+) 20...d4! 21.cd4 (21.cd4 Ba4 Combination; 21.ed4 Rb2 Combination) 21...Qd5 22.Qa6 (22.0-0 Qf3 23.d5-+) 22...Qh1 23.Ke2 (23.Qf1 Qh2 24.Ke2-+) 23...Qa1 24.Qd3 Qa4 (24...Ba4 25.Kf3 Qh1 26.Kf4 e5 27.Kg5 h6 28.Kg4 Bd7 29.Qf5 Bf5 30.Kf5 Qf3 31.Ke5 Rd5) 25.f3 Bb5 26.Qb5 (26.Ke1 Bd3 27.Kf2 Qd1 28.g4 Qf1 29.Kg3 Qg1 30.Kh3 Qf2 31.d5 Bf1) 26...Qb5 27.Kf2 Qb2 (27...Qa5 28.Kg2 Rb2 29.d5 Qd2 30.Kh3 f5 31.Kh4 Qh2 32.Kg5 Qh6) 28.Kg2 (28.Ke1 Qc1 29.Ke2 Rb2 30.f4 Qd2 31.Kf3 f5 32.e4 Qc3) 28...Qd2 29.Kh3 Qe3 (29...Rb2 30.Kg4 Rd4 31.f4 Qd1 32.Kh4 Rh2 33.Kg5 h6) 30.Kg4 Rb3 (30...f5 31.Kh3 Qh6 32.Kg2 Rb2 33.Kf1 Qc1) 31.h3 (31.f4 Qe2 32.Kh3 Qh5 33.Kg2 Rb2 34.Kf1 Qd1) 31...Qf3 (31...f5 32.Kh5 Qh6) 32.Kh4 Qg3 33.Kh5 f6 (33...Rd5) 34.h4 (34.d5 Rd5) 34...Rb5 (34...Rd5) 35.d5 Rbd5 0-1. FelixMart – undogrel, Rated Classical game, lichess.org, 2020.

6.Nb5 Na6 7.c3 Be7 8.Qf3-+.

6.Nb5 Qe7 7.Nf3 c6 8.Nbd4 (8.a3 Bc5 (8...cb5?! 9.Bb5 Nc6 10.ab4=+) 9.d4 a6-+) 8...c5 (8...e5 9.Nb3-+) 9.Nb5 (9.Bb5 Bd7 10.Bd7 Nd7-/+ (worse 10...Kd7 11.c3 cd4 12.cb4=+)) 9...a6-+ 10.a3 ab5?? (better 10...Ba5 11.Nc3 b5-+) 11.ab4= Ra1 12.Qa1 Qc7?? (12...0-0!? 13.Qa7 Nd7=) 13.bc5 (better 13.Qg7 Rf8 14.Ng5+- (14.Qh7?! c4+-)) 13...Qc5? (better 13...0-0!? 14.Qe5 Qe5 15.Ne5 f6+=) 14.Qg7+- Rf8 (14...Qf8 15.Bb5 Bd7 16.Qe5+-) 15.Qe5 (15.Ng5 Qc2 16.Nh7 Qc1 17.Ke2 Nd7+-) 15...Qc2? (15...Nd7 16.Qb2 Rg8+/-) 16.Bb5?? (better 16.Qb8 Qc1 17.Ke2+-) 16...Nd7 17.Bd7 (17.0-0 Ke7 18.Qa1 Rg8+/-) 17...Bd7+= 18.0-0 f6 19.Qb8 Ke7 (19...Qc8!? 20.Qg3 e5+=) 20.Qb7+/- Rc8 21.Qb4 Kd8?? (better 21...Ke8+/-) 22.Qf8+- Kc7 23.Qf6 Rb8 (23...Qf5 24.Qh4 Kd6 25.Qb4 Kc7 26.Qe7+-) 24.Ne5 (better 24.Nd4 Qd2 25.Qe5 Kc8 26.Ne6 Be6 27.Qe6 Kc7 28.Qe5 Kc8 29.Ra1+-) 24...Rb1 25.Qe7?? (better 25.g4 Bb5 26.Rb1 Qb1 27.Kg2 Qf1 28.Kg3 Qg1 29.Kh4 Qh2 30.Kg5+-) 25...Rf1 26.Kf1 Qd1. FelixMart – chessjj, Rated Classical game, lichess.org, 2020.

7.dc3 Qc3 8.Qd2 Qa3 9.c3 Nc6 10.Rb3 Qa5 (10...Qd6 11.Nf3-+) 11.Bb5 Bd7 12.Bc6 Bc6 13.Nf3 0-0 14.Nd4 Ba4 (14...Qc5 15.f4-+) 15.Ra3 (better 15.Rb7!? Rfb8 16.Rb8 Rb8 17.0-0-+) 15...c5 16.Nc2 (16.Nb3 Qb5-+) 16...b5 (16...Qb5 17.Qc1-+) 17.c4?! (17.0-0 Qb6-+) 17...b4 (better 17...Qd2 18.Kd2 dc4-+) 18.0-0 (18.cd5 Qa6 19.Nb4 cb4 20.Qb4-+) 18...ba3 (better 18...dc4 19.Ra4 Qa4-+) 19.Qa5+/- Bc2 20.cd5 (20.Qc5?! Rfc8 21.Qa3 dc4=+) 20...ed5 21.Qc5 Be4 (21...Bd3 22.Rc1+/- (22.Qd5?! Bf1 23.Kf1 Rab8=)) 22.f3 (22.Rd1 Bf5+/-) 22...Bd3+/- 23.Rd1 Bg6? (better 23...Bc4 24.Qa3 a6+/-) 24.Rd5+- Rac8 25.Qa7 (25.Qa3 Rc7+-) 25...Rc1 26.Kf2 Rc2 27.Kg3 Ra2 28.Ra5 Re8 29.Ra3 Rd2 30.Qc5 h6 31.Qc6 Re5 32.Ra8 Kh7 33.Qc3?? (33.e4 Bh5 34.Qc8+-) 33...Rg5= 34.Kf4 Rdg2 (better 34...Rf5 35.Kg3 Rg5 36.Kh3 Rdg2=) 35.e4+- Rh5?? (better 35...Bh5 36.Qc8 Rf2 37.Qg8 Kg6 38.Ra6 f6+-) 36.Qe1 (better 36.Qc8 Rh4 37.Ke3 Be4 38.fe4 Rhh2 39.Qf5 Rg6 40.e5+-) 36...Rhh2= 37.Ra5 (37.Qd1 Bh5=) 37...f6 (37...Bh5!?=+) 38.Ra7= Bh5 39.Qd1?? (better 39.e5 Re2 40.Qg3=) 39...Rf2 40.Qd7?? (better 40.Ke3 Rf3 41.Kd4-+) 40…Rf3 0-1. FelixMart - veet1, Rated Classical game, lichess.org, 2020.

7.dc3 Qc3 8.Qd2 Qd2 9.Kd2 0-0 10.Bb5 c6 11.Bd3 Nd7 12.Nf3 Nc5 13.Ng5 (13.h3 Re8-+) 13...Nd3 (13...f6!? 14.Nf3-+) 14.cd3 h6 15.Nf3 b5 (better 15...f6!?-+) 16.Ne5 Bd7?? (better 16...Bb7-/+) 17.Nd7+- a5? (better 17...Rfc8+-) 18.Nf8 (18.Nf8 Kf8 19.d4+-) 1-0. FelixMart – dumbestwitch, Rated Classical game, lichess.org, 2020.

7.dc3 Qc3 8.Qd2 Qd2 9.Kd2 0-0 10.Bd3 c5 11.Rb5 (11.Nf3 c4 12.Be2 Rd8-+) 11...c4 12.Be2 Nc6 13.Nf3 a6 14.Rb6 Rd8 15.g4 e5 16.h4 (16.h3 Kf8-+) 16...Bg4 17.h5 (17.Rb7 Rab8 18.Rhb1 Rb7 19.Rb7 d4-+) 17...h6 (17...Ra7 18.Rhb1-+) 18.Nh4?! (18.Rb7 Rab8 19.Rhb1 Rb7 20.Rb7 Rd6-+) 18...Be2 (18...c3 19.Ke1 Be6 20.Rg1-+) 19.Ke2 Rd7 20.Rg1 f6 (20...Kh7!? 21.Nf5 g6 22.Ng3-+) 21.Nf5 Kh7 22.c3 Rc8 23.a4 d4 (23...Rcc7 24.Rg4-+) 24.ed4 ed4 25.cd4 Re8 (25...c3 26.Ke3-+) 26.Kf3?! (26.Kf1 Red8-+) 26...Re6 (better 26...c3-+) 27.d5?? (27.Rbb1-+) 27...Ne5 28.Kf4 (28.Ke4 Rb6 29.f4 Nd3-+) 28...Rb6 29.d6 (29.Ke4 Rb4 30.Nd4 c3-+) 29...Rb3 (29...c3 30.Ke4-+) 30.Ke4 Rd3 (better 30...Rh3 31.Kd5 Rh5 32.Ng3-+) 31.f4 (31.a5 Nf3 32.Rg2 Ng5 33.Rg5 hg5-+) 31...Nf3 32.Rc1 (32.Rg2 Nd2 33.Rd2 Rd2-+) 32...b5 (32...Nd2) 33.ab5 (33.Rc2 Nd2 34.Rd2 Rd2 35.ab5 ab5-+) 33...ab5 (33...Nd2) 34.Rf1 (34.Rc2-+) 34…Nd2 0-1. FelixMart – Kandilov, Rated Classical game, lichess.org, 2020.

7.dc3 Qc3 8.Qd2 Qd2 9.Kd2 b6 10.Be2 0-0 (10...Ba6 11.Nf3-+) 11.Nf3 Nd7 12.Nd4 c5 13.Nf3 f6 14.Nh4 (14.Rhd1 Ne5-+) 14...e5 (14...c4 15.Nf3-+) 15.Bf3 (15.Nf5 Re8-+) 15...Bb7 (15...e4 16.Bg4 Ne5 17.Bc8 Rfc8 18.Nf5-+) 16.c4 (16.Nf5 e4 17.Be2-+) 16...e4 17.Bg4 Ne5 18.Be6 Kh8 19.Bd5 Rad8 20.Kc3 Bd5 21.cd5 Rd5 22.Nf5 (22.Rhd1 Rfd8 23.Rd5 Rd5-+) 22...Rd3 (better 22...Rfd8!? 23.Rbc1 Nd3 24.Ng3 Nf2 25.Rhg1-+) 23.Kc2 Rfd8 24.Rhf1 (24.Rhd1-+) 24...Rd2 25.Kc3 (25.Kc1 Ra2 26.Rb3 Rdd2-+) 25...Ra2 (25...R8d3) 26.f4 (26.Rbd1 Rd3 27.Rd3 ed3-+) 26...Nc6 (26...Rd3) 27.Rfd1-+ Rd1 (27...Ra3 28.Kc4 Rad3 29.Rd3 Na5 30.Kb5 ed3 31.e4-+) 28.Rd1 g6 29.Nd6 (29.Rd6 gf5 30.Rc6 Kg7-+) 29...Rg2 (better 29...f5 30.g4 fg4 31.Nf7 Kg7 32.Rd7-+) 30.h4 (30.Ne4 f5 31.Ng5-+) 30...Rg3 31.Kd2 Nb4 (31...f5 32.h5-+) 32.Ke2 (32.Ne4 Rh3 33.Ke2-+) 32...Nd3 (better 32...f5 33.Nf7 Kg8 34.Rd7-+) 33.Rh1?? (33.Ne4!? Rg2 34.Kd3=) 33...h5 (33...Rg2 34.Kf1 Rf2 35.Kg1-+) 34.f5?? (better 34.Ne4 Nf4 35.ef4=) 34...Kg7 (34...Rg2!? 35.Kf1 Rf2 36.Kg1 gf5 37.Rh3-+) 35.fg6 (35.Ne4 Rg4 36.Kd3 c4 37.Kc4 Re4 38.Kd3 gf5-+) 35...Kg6 (better 35...Rg2 36.Kf1 Rf2 37.Kg1 f5-+) 36.Ne4 Rg2?? (better 36...Rg4 37.Kd3 c4 38.Kc4 Re4 39.Kd3 f5-+) 37.Kf3 (37.Kf3 Rg4 38.Nd6-+). FelixMart - Vandan_Ochir, Rated Classical game, lichess.org, 2020.

7.dc3 Qc3 8.Qd2 Qf6 9.Nf3 0-0 10.Nd4 (10.c4 Rd8-+) 10...Nc6 (10...c6!? 11.Nf3-+) 11.Nc6 bc6 12.Be2 a5 13.0-0 c5 (13...Rd8 14.Rfc1-+) 14.Bb5 (14.c4 c6-/+) 14...c4 15.c3 (15.Rfd1 Ba6-+) 15...Ba6 (15...Rd8 16.Rfd1-+) 16.Ba6 Ra6 17.Rb7 Rc6 18.Ra7 h6 (18...Rc5 19.Rb7-+) 19.Ra5 Rc8 20.Rb1 (20.Qd4 Qd4 21.ed4 Rb6-/+) 20...Qe7 (20...Rb6 21.Rb6 cb6 22.Rb5-/+) 21.Qd4 Rd8 22.Qa7 (better 22.a4-/+) 22...Rd7?? (better 22...Qf6-/+) 23.Qa8+- Kh7 24.Rb8 (24.Qc6 Rd6 25.Qc5 Qd8+-) 24...Kg6?? (better 24...Rb6 25.Rb5 Rb5 26.Rb5 c6 27.Qc6 Ra7-+) 25.Rh8 (better 25.Qc6 Qd6 26.Qd6 Rd6 27.a4+-) 25...Rcd6 (better 25...Rb6 26.g3 Qf6 27.Rh6 Kh6 28.Qh8 Kg6-+) 26.Qg8-/+ Qf6 27.Qh7 Kg5 (27...Kh5 28.Qc2-/+) 28.h4 (better 28.Rg8!? g6 29.f4 Kf5 30.Qh6=) 28...Kh4-/+ 29.g3? (29.Rg8 Qg6 (29...Qc3 30.Rg7 Qc1 31.Kh2 Qe3 32.fe3 e5 33.g3 Kh5 34.Qf5) 30.Qg7 Qg7 31.Rg7 e5=+) 29...Kg5 (29...Kh3 30.Qb1 Rb6 31.Qd1-+) 30.Rg8 Qc3?? (better 30...g6-+) 31.Rg7= Kf6 32.Qh6 (better 32.Ra8!? Rb6 33.Rf8+/- (worse 33.Qh6 Ke7+=)) 32...Ke7-/+ 33.Qg5 (33.Ra8!? Rd8 34.Rg8 Rg8 35.Rg8 Qe1 36.Kg2=) 33...Qf6-+ 34.Qf6 Kf6 35.Rh7 c6 36.Rh6 Ke7 37.Ra8 (37.Kg2 c5!-+) 37...c5 38.Rhh8 (38.Rc8 Ra6 39.Rc5 Ra2-+) 38...d4 39.Rae8 (39.e4 Rd8 40.e5 R6d7 41.Rad8 Rd8 42.Rd8 c3-+) 39...Kf6 40.Rh6 Ke5 (40...Kg7 41.Rh4 d3 42.Rg4 Kf6 43.Rf4 Ke5 44.Rc8-+) 41.Rh5 Kf6 42.ed4?? (42.Rh6 Kg7 43.Rh4 c3 44.Rg4 Kf6 45.Rf4 Ke5-+) 42...c3 (42...cd4 43.Rh6 Ke5 44.Rh5 Ke4 45.Rc8-+) 43.Kg2?? (43.Rc5 Ra7=) 43...Rd4 (better 43...cd4 44.Rh6 Ke5 45.Rc8-+) 44.Rh1?? (better 44.Rc5 Ra4 45.Rc3 Ra2 46.g4=) 44...c2 (better 44...Rd1 45.Rh6 Kg7-+) 45.Rc1 Rc4 46.Rh8 Rd1 (better 46...Ra7-+) 47.Rc2?? (better 47.Rh1 Rh1 48.Kh1-+) 47...Rc2 48.Rh6 Ke7 49.Rh4 Ra2 50.Re4 (50.Rf4 e5 51.Rf5 Ke6-+) 50...Rc2 (better 50...Rdd2 51.Rf4-+) 51.Kh3 (51.g4 Rdd2 52.Rf4 c4-+) 51...c4 (51...Rf2 52.Re5 f5 53.g4 f4 54.Kh4 Kf6 55.g5 Ke5 56.Kh5 Kf5 57.Kh6 Rd7 58.g6 Rh2) 52.f4 (52.Rf4 c3 53.Rc4 f5-+) 52...c3 (52...f5 53.Re6 Ke6 54.g4 Rc3 55.Kh4 Rh1 56.Kg5 Rg3 57.Kg6 Rg4) 53.f5 Rh1 (53...Rcd2 54.g4 c2 55.Rc4 Rd3 56.Kg2 R1d2 57.Kg1 Rb3 58.f6 Ke8 59.Rc8 Kd7 60.Rd8 Kd8 61.Kf1 c1Q) 54.Kg4 Rg2 55.Kf3 c2 56.Kg2 Rc1 (56...c1Q 57.Kf3 Qd1 58.Re2 Rf1 59.Ke3 e5 60.f6 Ke6 61.Rb2 Rf3 62.Ke4 Qd3) 57.fe6 (57.Rc4 e5 58.Rc6 e4-+) 57...Rg1!! 58.Kg1 c1Q 59.Kg2 (59.Kf2 Qd2 60.Re2 Qd4 61.Kf3 Qf6 62.Kg2 fe6-+) 59...Qc2 (better 59...Qc6 60.Kh3 Qe4 61.ef7 Kf7 62.Kh2 Kg6 63.g4 Qg4 64.Kh1 Kf5 65.Kh2 Ke4 66.Kh1 Kf3 67.Kh2 Qg2) 60.Kf3 fe6 61.Kf4 (61.Ke3-+) 61...Qf2 62.Ke5 Qg3 (62...Qf6) 63.Kd4-+ Qd6 64.Ke3 Kf6 0-1. FelixMart - MAGnEnR1, Rated Classical game, lichess.org, 2020.

6.a3 a5 7.c3 e5-+.

6.Nc3 Qd1 7.Nd1 Bb4 8.Bb5 c6 9.Bd3 0-0 (9...e5 10.h5-+) 10.c3 Ba3 11.Nf3 c5 12.Ne5 (12.h5 h6-+) 12...c4 13.Bc2 Bd6 14.g4 (14.Nf3 f5-+) 14...f6 (14...Be5 15.d3-+) 15.f4 (15.Nf3-+) 15...fe5 16.fe5 Be5 17.g5 (17.Rg1 Nc6-+) 17...h6 (17...Bg3 18.Ke2-+) 18.gh6 gh6 19.Rg1 Kh8 20.Rg6 Bg3! 21.Ke2 (21.Rg3 Nd7 Combination) 21...Bh4 (better 21...Rg8 22.Rh6 Kg7 23.Rh7 Kf8 24.h5-+) 22.Rh6 Kg7 23.Rh4 Rh8 (23...e5 24.Nb2 b5 25.d3-+) 24.Rg4 (24.Rh8 Kh8 25.e4 Bd7-+) 24...Kf6 25.Rg6 Ke7 26.Nf2 Kd6 (26...e5 27.d4-+) 27.Ba4 (27.a3 Nc6-+) 27...Nd7 (27...Bd7 28.Bc2-+) 28.Rg7 (28.e4 Ne5 29.Rg5 Rh2-+) 28...Ne5 29.Re7 (29.Rg2 Bd7 30.Bc2 Rag8 31.Rg8 Rg8-+) 29...b6 (better 29...Ke7 30.e4 Bd7 31.Bd7 Kd7 32.ed5 ed5 33.d4 cd3 34.Nd3 Rh2 35.Ke3 Nc4 36.Kf4 Rf8 37.Kg3-+) 30.Rg7 Bb7! 31.d4 (31.Rb7 Rh2 Combination) 31...Rhg8 (better 31...cd3 32.Ke1 Raf8-+) 32.de5= Ke5 33.Rb7?? (better 33.Ng4!? Kd6 34.Rd7 Kc5 35.Rc7 Kd6 36.Rd7 Kc5 37.Rc7 Kd6 38.Rd7=) 33...Rg2 (better 33...Raf8 34.Kf1 Rg3-+) 34.Kf3 (better 34.Rf7-/+) 34...Rf8?? (better 34...Rag8 35.Rf7 Rg1-+) 35.Kg2+- Rf2 (35...Rg8 36.Kf3 Rf8 37.Kg3 Kd6+-) 36.Kf2 1-0. FelixMart - ibrahem990, Rated Classical game, lichess.org, 2019.

6.Nc3 Qd1 7.Nd1 Bb4 8.Bb5 Bd7 9.c3 Bb5 10.cb4 Nd7 (10...Nc6 11.Nc3 Bc4 12.b5-+) 11.Nc3 a6 (better 11...Bc4 12.Nge2-+) 12.Nb5 (12.d4 b6-+) 12...ab5 13.Nf3 Ra2 14.Nd4 (14.Ke2 Rb2-+) 14...c6 (better 14...Ra1 15.Ke2 Rh1 16.Nb5 Rh4 17.d4-+) 15.Ke2 0-0 16.Nf3 (16.Rc1 e5 17.Nc2 Rfa8-+) 16...Nf6 17.g4 (17.Rb1 Rfa8-+) 17...Ng4 18.Rg1 (18.h5 Rb2-+) 18...Nf6 19.Ng5 (19.Rb1 Ne4 20.Rf1 Rfa8-+) 19...h6 20.Nf3 Ne4 21.Rg4 (21.Rc1 Rfa8-+) 21...Rfa8 22.Rf4 Nd6 (better 22...R8a4!? 23.Rg4-+) 23.Rd4 Nc4 24.Ne5 Ne5 25.f4 Nc4 26.Kf3 R8a3 27.d3 Nd2 28.Kg4 Nf1 (28...f5 29.Kg3 Nf1 30.Kf3 Rd2 31.Rd5 ed5 32.h5 Raa2 33.e4 Rd3) 29.Kf3-+ Rb3 30.Kg4 Raa3 (30...f5 31.Kf3 Rbb2 32.Rd5 Rf2) 31.Kf3-+ (31.Kf3 f5 32.Kg2 Rb2 33.Kg1 Ne3 34.Rc4 Ra1 35.Rc1 Rc1). FelixMart – beyo, Rated Classical game, lichess.org, 2019.