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TESTJ710 Release 2024-10-10
Marek Trokenheim's homepage
(c) Marek Trokenheim

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

Table of contents:

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7.0-0 Ne4 8.h3 f5 9.Nc3 c6 10.a4 g5 11.Ne4 fe4 12.Nh2 g4 13.Bg4 Bg4 14.Qg4 d5 15.Be5 Rf7 16.cd5 cd5 17.Rac1 Nd7 18.Bg7 Qe7 19.Bf6 Rg7 20.Be7 Rg4 21.Ng4 Ne5 22.Ne5 Re8 23.Rc7 Kg7 24.Bc5 Kf6 25.Ng4 Kf5 26.Rb7 h5 27.Nh6 Ke5 28.Ra7 Rb8 29.Rh7 Ra8 30.a5 Kf6 31.Bd4 Kg6 32.Rh8 Rh8 33.Bh8 Kh6 34.Rc1 Kh7 35.Bd4 Kg6 36.Rc5 Kf5 37.Rd5 Ke6 38.Rc5 Kd6 39.a6 h4 40.a7 Ke6 41.a8Q Kf7 42.Rc6 Ke7 43.Qb7 Kd8 44.Rc8 1–0. Abdullaevich (1610) – Deanxoxo, lichess.org, 2018.

7.0-0 Ng4 8.h3+= Nh6 9.d4 e4 10.Nfd2 f5 11.Nc3 Nc6 12.a3 Ne7 13.Qc2 g5 14.f3 ef3 15.Bf3 Ng6 16.c5 g4 17.hg4 fg4 (17...dc5!? 18.dc5 Ng4 19.Bg4 fg4 20.Qb3 Kh8 21.Rf8 Qf8+/–) 18.Bd5+/– Kh8 19.Rf8 Nf8 20.Ne2 (20.c6!? Rb8 21.Rf1+/–) 20...Qg5 21.Nf1?? (21.Nf4 Nf5 22.Qe4+=) 21...g3?? (better is 21...Qd5 22.e4 Qg5–+) 22.Be4 d5 23.Bd3 Nf5 24.Qd2 Bh6 The pressure on the backward pawn e3 grows 25.Bf5 Bf5+= 26.Neg3 Bg6 27.Qf2 Ne6 28.Re1 Rf8 29.Qe2 Qh4 30.e4 Nf4+= 31.Qc2 Nh5 32.Qd3?? Rf1!–+ 33.Rf1 Decoy theme: f1 33...Ng3 34.Bc1 Bc1 (34...Bc1 35.Rc1 Be4–+ (35...Ne4?! 36.Qf3 Kg7 37.Rf1-/+); 34...Bg7 35.c6 bc6 36.Rf4 Qh1 37.Kf2 Ne4 38.Re4 Qc1 39.Re1 Qe1 40.Ke1 Bd3 41.Kd2–+) 0–1. Ryzlak,J – Adamski,Andrzej, Warszawa, 1988.

7.0-0 Kh8 8.b5 Ng8 9.h3 f5 10.a4 g5 11.Nh2 Nh6 12.d4 Qd7 13.de5 de5 14.Qd7 Bd7 15.Rd1 Be6 16.Nd2 Nd7 17.Ndf1 Rad8 18.a5 e4 19.Bg7 Kg7 20.Rd4 Ne5 21.Rad1 Rd4 22.Rd4 Rf7 23.c5 Rd7 24.Ng3 Rd4 25.ed4 Nc4 26.Bc4 Bc4 27.b6 ab6 28.ab6 cb6 29.cb6 Kf6 30.Nh5 Ke6 31.Nf1 Kd6 32.Nf6 Kc6 33.Nh7 Kb6 34.Ng5 Kc6 35.Ne3 b5 36.g3 Bd5 37.Kf1 b4 38.Ke1 b3 39.Nd1 Kb5 40.Kd2 Kb4 41.Nb2 Ng8 42.h4 Nf6 43.Nh3 Ng4 44.Nf4 Bf7 45.h5 Nf2 46.h6 Bg8 47.d5 Kc5 48.Kc3 e3 49.Kb3 e2 50.Ne2 Bd5 51.Kc3 Bg8 52.Nd3 Kd5 53.Nf2 Ke5 54.Nf4 Bh7 55.Kd3 Bg8 56.N2h3 Kf6 57.Kd4 Bh7 58.Kd5 Bg8 59.Kd6 Bh7 60.Kd7 Bg8 61.Ke8 Bh7 62.Kf8 Ke5 63.Kg7 Ke4 64.Kh7 Kf3 65.Kg7 Kg3 66.h7 Kf3 67.h8Q Ke4 68.Qh4 Kf3 69.Qf2 Ke4 70.Qe2 1–0. Abdullaevich (1780) – FranzBartl (1735), lichess.org, 2019.

7.a3 Bf5 8.d3 Nbd7 9.e4 Be6 10.0-0 c6 11.Nc3 d5 12.cd5 cd5 13.ed5 Nd5 14.Nd5 Bd5 15.Re1 Rc8 16.Rc1 Re8 17.Rc8 Qc8 18.Qc1 Nb6 19.Qc8 Nc8 20.Rc1 Nd6 21.Kf1 Bc6 22.h3 (22.Rc5 e4 23.Nd4 f5=) 22...Nb5 (22...e4 23.Nd4 Nf5 24.Nc6 Bb2+= (worse is 24...bc6 25.Bg7 Kg7 26.Rc6+/–)) 23.Kg1?? (23.Rc5!?+=) 23...Nd4?? (better is 23...e4 24.Bg7 ef3 (24...Kg7?! 25.de4 Na3 26.Bd3=) 25.Bf3 Kg7 26.Bc6 bc6 27.Rc6 Na3–+) 24.Nd4+= ed4 25.Kf1 Bg2 26.Kg2+/– Re2 27.Ba1?? Rd2?? 28.Rc8+– Bf8 29.Bd4 Rd3 30.Ba7?? Ra3?? 31.Bc5+– Ra2 32.Bf8 Re2 33.Bh6 (33.Bh6 Re8 34.Re8) 1–0. Fournier,Frederic – bilbo, Active, 2007.

7.a3 h6 8.Qc1 Nc6 9.0-0 Nh7 10.Rd1 f5 11.d4 e4 12.Nfd2 g5 13.b5 Ne7 14.Nf1 Nf6 15.Nbd2 Ng6 16.Ng3 Qe7 17.Nh5 f4 18.Ng7 Kg7 19.Qc3 d5 20.cd5 Nd5 21.Qc5 fe3 22.Qd5 Rf2 23.Bc4 Bg4 24.Ne4 Rb2 25.Rf1 Rf8 26.Rf8 Qf8 27.Rf1 Rf2 28.Nf2 ef2 29.Rf2 Nf4 30.Qe5 Qf6 31.Qc7 Kh8 32.Qb8 Kg7 33.Qg8 1–0. Adamkosh (2030) – kookiemonster (2020), lichess.org, 2020.

7.a4 e4 8.Nd4 c5 9.bc5 dc5 10.Nb3 b6 (10...Na6 11.0-0=) 11.a5 (11.d4 Nbd7=) 11...Bb7 (11...Nc6 12.f3 Na5 13.Na5 ba5 14.0-0=) 12.0-0 Nbd7 13.f3 ef3 (13...ba5 14.Na5 Qb6 15.Bc3=) 14.Bf3+= Bf3 15.Rf3 (15.Qf3 Re8+=) 15...Ne4 (15...ba5 16.Ra5 Qc7 17.Nc3=) 16.Bg7+= Kg7 17.Qc2 Nef6 (17...f5 18.Rf4+=) 18.d4 Ne8 (18...cd4 19.ed4 Qc7 20.Na3+=) 19.ab6 ab6 20.Nc3 (20.Ra8 Qa8 21.N1d2 f5+=) 20...Ra1+= 21.Na1 f5 (better 21...cd4 22.ed4 Nd6=) 22.d5 (better 22.Nb3+=) 22...Nd6 23.e4 (23.Ne2 Ne5 24.Rh3 g5-/+) 23...Ne5 24.Rf1 (24.Rf2 Qg5 25.ef5 Rf5–+) 24...f4 (24...Nec4 25.e5 Ne5 26.Ne2–+) 25.Qe2 (25.Nb5 Ndc4 26.Qc3 f3 27.gf3 Qg5 28.Kh1 Kg8–+) 25...Ndc4 26.Nc2 Qd7 27.h3 (27.Ne1 Ne3 28.Rf2 Qg4-/+) 27...b5 (27...f3 28.Qd1–+) 28.Ne1-/+ Ne3 (28...b4 29.Nd1–+) 29.Rf2 b4 30.Nd1 Nd1 31.Qd1 c4 (31...Qd6 32.Nd3 Nd3 33.Qd3-/+) 32.Nf3 (better 32.Qd4!? Qd6 33.Nf3=) 32...Nd3-/+ 33.Rc2 (33.Qa1 Kg8 34.Rc2 Qb5–+) 33...Qa7 34.Kh2 Rc8 (34...Qa4!? 35.Nd4 Kg8 36.Ne6-/+) 35.Ng5 b3 36.Rc4?? (36.Ne6 Kf7 37.Ng5 Kf6 38.e5 Ne5 39.Re2 Ng4 40.hg4 Kg5 41.Qe1-/+) 36...Rc4 37.Qb3 (37.Ne6 Kh8 38.Qd3 Rc1 39.Qd4 Qd4 40.Nd4 b2–+) 37...Ne5 (37...Rc1 38.Qc3 Rc3 39.h4 Qf2 40.Nh3 Qg3 41.Kh1 Rc1 42.Ng1 Qh4) 38.Ne6 Kf6 39.Nf4 Re4 40.Ne6 (40.Qg3 Qd4 41.Ne6 Qd5–+) 40...Qe3 (40...Re1 41.Ng5 Qg1 42.Kg3 Re2 43.Ne4 Kg7 44.Qb7 Kh6 45.Qh7 Kh7 46.Ng5 Kg8 47.Kh4 Qg2 48.Ne6 Nf3) 41.Qb7 (41.Qb2–+) 41...Nf3! 42.gf3 Qf2 (42...Qf2 43.Kh1 Re1) 0–1. retiponziani (1890) – Mr_Peter (2265), ChessWorld.net, 2020.

7.a4 Qe7 8.0-0 a5 (8...e4 9.Nd4=) 9.b5 Nbd7 10.Nc3 c6 11.Ba3 (11.d4 Re8+=) 11...Rd8 (11...e4 12.Ne1=) 12.Rb1 Nf8 (12...e4 13.Ne1=) 13.bc6 bc6 14.Rb6 (14.d4 N8d7+=) 14...Qc7 15.Qb1 Bf5 16.d3 (16.Rb7 Qc8 (worse 16...Bb1 17.Rc7 Be4 18.Ng5+/-) 17.d3 Rd7 18.Rd7 Qd7+=) 16...Rdb8 17.Rb8 Rb8 18.Qa1 (better 18.Qc2=) 18...d5 (better 18...e4 19.Nd4 ed3=) 19.cd5+/- cd5 (19...e4 20.d6 Qc8 21.de4 Ne4 22.Nd4+=) 20.Nb5 (20.Rc1!? Qb6 21.Ne5+/-) 20...Qc2+= 21.Bf8 (21.Nc3 Re8+= (21...Bd3? 22.Rc1+-)) 21...Rf8= (21...Qe2? 22.Bg7 Kg7 23.Ne5+-; worse 21...Bf8 22.Bd1 Qd3 23.Ne5+=) 22.Bd1 Qd3 23.Ne5 Qe4 (23...Qd2!?=) 24.Nd6+= Qh4 25.Nf5 gf5 26.Nf3 (26.Qc1 Ne4 27.Nc6 Nc3+=) 26...Qc4 27.Qe5 Qe4 (27...f4 28.ef4 Re8 29.Qd6+=) 28.Qc7+/- Qb4 (28...f4 29.ef4 Qb4 30.Bc2+/-) 29.Nd4 f4 (29...Qb8 30.Qa5 f4+/-) 30.Nf5 (30.Qf4!? Ne4 31.Nf5+-) 30...fe3 (30...Re8!?+=) 31.fe3+/- Qe4? (better 31...Ne8 32.Qg3 Kh8+/-) 32.Ng7?? (better 32.Qg3 Ne8 33.Nh6 Kh8 34.Nf7 Rf7 35.Rf7+-) 32...Kg7 (32...Qe3!? 33.Kh1 Ne4=+) 33.Qg3 (better 33.Rf3 Re8 34.Qa5+/-) 33...Kh8?? (better 33...Qg6 34.Qh4 Re8+=) 34.Rf6+- d4 (34...Re8 35.Rf7 Qe3 36.Qe3 Re3 37.Bf3+-) 35.Rf1 (better 35.Rf3!? Re8 36.Qd6 Qe5 37.Qe5 Re5 38.ed4 Re1 39.Rf1 Rf1 40.Kf1 Kg7+-) 35...de3 (35...Qe3 36.Qe3 de3 37.Rf5+-) 36.Re1 (better 36.Qd6!? Rg8 37.Qf6 Rg7+-) 36...Re8 37.Bh5 Re7 38.Qb8 (38.Rf1 Qe5 39.Qh4 Kg7+-) 38...Kg7 39.Qb2 Kh6?? (39...Qe5 40.Qa3+-) 40.Bf3 (better 40.Qf6 Kh5 41.h3+-) 40...Qa4?? (40...Qe5 41.Qe2 Kg7+-) 41.Qf6 1-0. carlos78 (2165) - darksquaregames (2280), Rated Blitz game, lichess.org, 2015.

7.b5 Nbd7 8.0-0 e4 9.Nd4 Nc5 10.a4 h5 (10...a6 11.f3=) 11.Qc2 Bg4 (11...h4 12.f3=) 12.h3 (better is 12.f3!? ef3 13.Bf3+/–) 12...Be2= 13.Ne2 Nd3 14.Bc3 Qd7 (14...d5 15.f3 dc4 16.Na3=) 15.Nc1 (15.f3!? ef3 16.Qd3 fe2 17.Qe2+/–) 15...Nc5 16.d4 ed3 17.Nd3 Nd3 18.Qd3 Rad8 19.Nd2 d5 20.c5 c6 21.Bd4 Rfe8 22.Nf3 Ne4 23.Bg7 Kg7 24.Nd4 f5 25.bc6 bc6 26.Rfb1 Rb8 27.a5 Nf6? 28.a6 Ne4+/– 29.Nf3 Qe7 30.Qd4 Kg8 31.Rb8 Rb8 32.Ne5 Qc5 33.Qc5 Nc5 34.Nc6 Rb6 35.Na7 Ra6 36.Ra6 Na6 37.Nc8 Kf7 38.Nd6 Ke6 39.Ne8?? Nc5?? 40.Nc7 Ke5 41.Kf1 d4 42.ed4 Kd4 43.Ke2 Ne4 44.Nb5 Ke5 45.Na3 g5 46.Nc4 Kd5 47.Ne3 Ke5 48.Kd3 Nf2–+ 49.Kc4 f4 50.Nd5 g4 51.hg4 hg4 52.Nc3 f3 53.gf3-/+ gf3 54.Nd1?? Nd1–+ 55.Kd3 Kf4 56.Kd2 f2 57.Ke2 Kg3 58.Kf1 Ne3 59.Ke2 f1Q 60.Ke3 Qf2 61.Ke4 Qf4 62.Kd3 Kf3 63.Kc3 Qe4 64.Kd2 Qe3 65.Kc2 Kf2 66.Kd1 Qe2 67.Kc1 Ke3 68.Kb1 Kd3 69.Ka1 Kc3 70.Kb1 Qb2 0–1. MammaMia – PrinceMyshkin, Caissa.com, 2004.

7.b5 e4 8.Nd4 c5 9.bc6 bc6 10.Qc2 c5 11.Nb5 a6 12.N5c3 Ng4?? (better 12...Re8!?=+) 13.Ne4 (13.Bg4 Bg4 14.Qe4 Qb6+–) 13...Qh4 (13...Bb2 14.Qb2 Bf5 15.Nbc3+–) 14.g3 (14.Bg7 Kg7 15.Qb2 Ne5 16.Nd6 Nbc6+–) 14...Qh3 (14...Qe7 15.Bg7 Kg7 16.0-0+–) 15.Bg7 (15.Bf3 Ne5 16.Be5 Be5 17.Nd6 Ba1 18.Ba8 Be6+–) 15...Kg7 16.Na3 (better 16.Bf1 Qh5 17.Bg2+–) 16...Bb7?? (16...Qg2!? 17.0-0-0 Nf2 18.Nf2 Qf2=) 17.0-0-0 (better 17.Qb2 Ne5 18.Qb7+–) 17...Nh2?? (17...Ra7 18.Qc3 Kh6 19.Bg4 Qg4 20.Nf6+–) 18.Qc3 (better 18.Qb2 f6 19.Qb7 Nd7+–) 18...Kg8?? (better 18...f6 19.Bf3! Nc6 20.Rh2 Qh2+–) 19.Nf6+– Kg7 (19...Kh8 20.Rh2! Qh2 21.Ng4 f6 22.Nh2 Nc6+–) 20.Ne8 Kg8 (20...Kh6 21.Qg7 Kg5 22.f4 Kf5 23.Qf6 Ke4 24.Nd6) 21.Qg7 1–0. GuestYDBL – GuestACGT, freechess.org, 2017.

7.Qc1 c6 8.0-0 Nbd7 9.d4 e4 10.Nfd2 d5 11.cd5 cd5 12.f3 Qb6 13.a3 Qe6 14.fe4 Ne4 15.Ne4 Qe4 16.Bf3 Qe6 17.Nc3 Nf6 18.Qc2 Qe3 19.Kh1 Be6 20.Rae1 Qd4 21.Nd5 Bd5 22.Bd4 Bf3 1–0. Chess4Win (1700) – momo44 (1705), lichess.org, 2020.

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

7.d3 d5 8.cd5 Qd5 9.Nc3 Qe6 10.0-0 b6 11.a3 Bb7 12.Rc1 Nd5 13.Nd5 Qd5 14.d4 ed4 15.Bd4 Bd4 16.Qd4 Qd4 17.Nd4 c6 18.Bf3 Nd7 (18...a6 19.a4+/–) 19.Bc6 (19.b5!? Ne5 20.bc6 Ba6+–) 19...Bc6 20.Nc6 Nf6 21.Ne7 Kg7 22.Rc7 a6 23.Rfc1 a5 24.ba5 (24.b5 Rad8+–) 24...ba5 (24...Ra5!? 25.R7c3 Rfa8+=) 25.f3 Rad8 26.e4 Nd7?? (26...Rd3!? 27.a4 Rd4+–) 27.Nd5 (better is 27.Nc6!? Nf6 28.Nd8 Rd8+–) 27...f5 (27...Nf6 28.R7c5+–) 28.Nf4 fe4 29.Ne6 Kf7 30.Nf8 Rf8 (30...Kf8 31.fe4 Ke8+–) 31.Rd7 Ke6 32.Ra7 Rf5 (32...ef3 33.Rf1+–) 33.fe4 Re5 (33...Rh5+–) 34.Rc6 1–0. Fournier,Frederic – clara659, Active, 2009.

7.d3 Nh5 8.Nfd2 Qh4 9.Nc3 f5 10.g3 Qg5 11.Bf3 Nd7 12.Nd5 Qd8 13.Bh5 gh5 14.Qh5 c6 15.Nc3 a5 16.ba5 Nc5 17.Qe2 e4 18.de4 Qa5 19.e5 Be5 20.Rc1 Qb4 21.Ba1 Ra3 22.Ndb1 Nb3 23.ab3 Ra1 24.0-0 Be6 25.Qc2 Rfa8 26.Nd2 R1a3 27.Qd3 Kh8 28.Rfd1 Bf7 29.Ncb1 Ra1 30.Nf3 Bb2 31.Rc2 Bg7 32.Rcc1 d5 33.Nbd2 Rc1 34.Rc1 Rf8 35.Ng5 Bg8 36.Ndf3 Qa3 37.Qc2 dc4 38.bc4 b5 39.cb5 cb5 40.Nd4 b4 41.Qc5 Ra8 42.Kg2 b3 43.Qa3 Ra3 44.Rc8 Bd4 45.ed4 b2 46.Rb8 h6 47.Nf3 b1Q! 48.Rb1 Bd5 49.Rb5 Bf3 50.Kh3 Be4 51.Kh4 Ra2 52.g4 Rf2 53.gf5 Rf5 54.Rb8 Kg7 55.Kg4 Rf2 56.Kg3 Rf6 57.Re8 Bg6 58.Re7 Rf7 59.Re2 Rd7 60.Rd2 Kf6 61.Rf2 Ke6 62.Rf4 Rf7 63.Rh4 h5 64.d5 Kd5 65.Ra4 Ke5 66.Ra5 Kf6 67.Kg2 Bf5 68.Kf3 Rb7 69.Ra6 Kg5 70.Kg3 Rb3 71.Kf2 Rb2 72.Kg1 h4 73.Ra4 Re2 74.Rb4 Re4 75.Rb8 Kf4 76.Rf8 Rb4 77.Ra8 Rb1 78.Kf2 Rh1 79.Rh8 Rh2 80.Kg1 Rd2 0–1. Bruno,Fabi (2445) – Mogranzini,R (2415), 67th ch–ITA, Martina Franca ITA, 2007. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 e5 6.d3 0-0 7.Be2)

7.h3 Nc6 8.a3 (8.b5 Ne7=) 8...Re8 (8...e4 9.Nd4=+) 9.0-0= e4 10.Nd4 Nd4 (10...Ne5 11.f4 Nd3 12.Bd3 ed3 13.Qb3=+) 11.Bd4 d5 (11...Be6 12.Qc2=) 12.cd5 (12.Nc3 Bf5=) 12...Qd5 13.Nc3 Qd7 (13...Qg5 14.Kh2=) 14.Qb3 (14.f3 Qe7+=) 14...c6 (14...a5 15.f3+=) 15.Na4 (15.f3 ef3 16.Rf3 Qe7+=) 15...Nd5 (15...Qf5!?=) 16.Bg7+= Kg7 17.Nc5 (17.f3 Qd6+=) 17...Qd6 (17...Qe7 18.f3 Bf5 19.fe4 Be4 20.Bc4+=) 18.f3 b6 (18...ef3!? 19.Bf3 a5+=) 19.Ne4+– Qe5 20.d4 (better 20.Rac1 Bd7 21.Bc4+–) 20...Qg5?? (20...Qe6 21.Bc4 f5 22.Bd5 cd5+–) 21.f4 (better 21.Ng5 Re3 22.Qc2+–) 21...Qe7 (21...Qd8!? 22.Bf3 Bf5=) 22.Bf3+– f5 23.Ng5 (23.Nf2 Be6+–) 23...Qe3 (better 23...h6!? 24.Bd5 cd5+=) 24.Qe3+– Ne3? (24...Re3 25.Rac1 Re7+– (25...Ra3 26.Bd5 cd5 27.Rc7 Kg8 28.Re1+–)) 25.Bc6+– Nf1 26.Be8 (worse 26.Kf1 h6 27.Be8 Ba6 28.b5 Re8 29.ba6 hg5 30.fg5 Rc8+–) 26...Bb7 (26...Bb7 27.Rc1 Re8 28.Rc7 Kg8 29.Kf1 h6+–). GuestKVNF – GuestLWTP, freechess.org, 2016..

7.h3 Be6 8.b5 (8.d4 e4 9.Nfd2 d5=) 8...Nbd7 (8...a6 9.d4=+) 9.d4= ed4 10.ed4 (10.Nd4 Qe7=) 10...d5=+ 11.c5 (11.Ng5 Bf5 12.0-0 Re8=+) 11...c6 (11...Ne4 12.c6 bc6 13.bc6=+) 12.a4 (12.Ng5 cb5 13.0-0 a6-/+) 12...Qa5 (12...Ne4 13.Ra2=+) 13.Nbd2 (13.Bc3 Qc7=+) 13...Ne4=+ 14.0-0 (14.Ra2 cb5 15.Bb5 Bh6=+) 14...Nd2 (14...Ndc5 15.Ba3 Nd2 16.Nd2 Bd4 17.Rc1-/+) 15.Nd2 (15.Qd2 Qd2 16.Nd2 Rae8=+) 15...Qb4 (15...Nc5 16.Ba3 Bd4 17.Rc1-/+) 16.Nb3 (16.Nb3 Nc5 17.Ba3 Qb3 18.Bc5 Qd1 19.Rfd1-/+). DEFFM – GuestPKCT, freechess.org, 2016.

7.0-0 Qe7

8.Qb3 e4 9.Nd4=.

8.b5 Nbd7 9.d4 Re8 10.de5 Ne5 11.Ne5 de5 12.Nc3 Nd7 13.Nd5 Qd6 14.a4 Nc5 15.Ba3 c6? (better is 15...e4=) 16.Bc5+/– Qc5 17.Nc7 Bf5 18.Na8 Ra8 19.Ra2 Bf6 20.Qb3 Be7 21.Rd1 h5 22.Rad2 h4 23.h3 Be6 24.Qc3 Kg7 25.Rb2 Re8 26.bc6 bc6 27.Rb7 Rf8 28.Qb2 Bd6 29.Qc3 Bc8?? (29...Be7 30.Re7 Qe7 31.Qe5 Qf6+–) 30.Rb2+– Be6 31.Qd3 Be7 32.Qc3 Re8 33.Rdb1 Bd6 34.Bg4 f5 35.Bf3 Re7 36.Rb7 Rb7 37.Rb7 Kf6 38.Rh7 Kg5 39.Qb3 e4+= 40.Qb7?? Qe5–+ 41.g3 hg3 42.h4 Kf6 43.Qg7 1–0. Grosmelder,Karl – Parfenov,Vjacheslav (2230), Moscow op1, 1999.

8.d3 Nh5 9.Nfd2 Qg5 (9...Nf6 10.Nc3+=) 10.Bh5 gh5 11.Nf3 Qg6 12.Nh4 Qg4 13.Qg4 hg4 14.f4 Nc6 15.b5? (better 15.a3!?=+) 15...Nb4-+ 16.Nc3? (better 16.fe5 Nd3 17.Bc3 Ne5 18.Nd2-+) 16...Nd3 17.Rab1 (17.Ba3 ef4 18.Rad1 Bc3 19.Rd3 Bf6-+) 17...Nb2 (better 17...ef4!? 18.Nd5 Nb2 19.Nc7-+) 18.Rb2 ef4 19.Rc2 fe3 (19...Bf6!? 20.g3 Bh4 21.gh4 fe3 22.Nd5-+) 20.Nd5 Bd4 21.Kh1 (21.Re2 c6 22.Ne7 Kh8 23.bc6 bc6 24.Nc6 Bc5-+) 21...c6 22.bc6 bc6 23.Ne7 Kh8 24.Nef5 (24.Nc6 Bb6 25.Ne7-+) 24...Bc5 25.Re1 Ba6 26.Ne7 Rae8 (26...f5 27.Nhf5 Rf7 28.Rc3-+) 27.Nc6 (27.Nhf5 h5-+) 27...Re4 28.Nf5 Rfe8 29.Ng3 R4e6 (better 29...Rc4 30.Rb2 e2 31.Rbe2 Re2 32.Ne2-+) 30.Na5 (30.Nf5 Bb7 31.Ncd4 Re5-+) 30...Kg7 (better 30...Bb4 31.Rf1 Ba5-+) 31.Nb3 Bb4 32.Ree2 Kg6 33.Nd4 Re4! 34.Ne4 Re4 35.Nc6 (35.Nb5 d5! 36.a3 Bc5-+ (36...dc4?! 37.ab4 Bb5 38.Rc3-+)) 35...Bc5 36.Na5 f5 37.Nb3 f4 38.Nc5 dc5 39.Kg1 Bc4 (better 39...f3 40.Re1 Rc4 41.gf3 Rc2 42.Re3 Ra2 43.fg4-+) 40.Re1 f3 41.gf3 gf3 42.Rc4 (42.Re3 Rg4 43.Kh1-+) 42...f2 43.Kf1 fe1Q (worse 43...fe1N 44.Re4 Nc2 45.Ke2+/-) 44.Ke1 Rc4 45.Ke2 Ra4 0-1. Undertakerle (1890) - LongLiveBelarus (2520), Lichess Liga, lichess.org, 2023.

8.d4 e4 9.Nfd2 h5 (9...a5 10.b5=) 10.Nc3+= Bf5 11.a4 (11.Qb3 a6+=) 11...Nbd7 (11...Nc6 12.b5 Nb4 13.Ba3+=) 12.b5 (12.Nb3 d5+=) 12...Rfe8 (12...a6 13.Qc2=) 13.Qb3 (13.a5 a6+=) 13...h4 (better 13...c5 14.bc6 bc6=) 14.Rac1 (14.h3!?=) 14...c5 (better 14...h3-/+) 15.Nd5? (better 15.bc6 bc6 16.h3=+) 15...Nd5–+ 16.cd5 cd4 (better 16...Qg5!? 17.f4 ef3 18.Nf3 Re3–+) 17.Bd4-/+ Nc5 (17...h3 18.Nc4=+) 18.Qb4 (18.Bc5!? dc5 19.Rfd1=) 18...Bd4=+ 19.ed4 (19.Qd4 h3 20.g3 Rac8=+) 19...e3-/+ 20.fe3?? (better 20.Nf3 ef2 21.Rf2–+) 20...Qe3–+ 21.Kh1 Qe2 22.dc5 h3 23.gh3 dc5 (better 23...Bh3 24.Rg1 Qf2 25.Qc3–+ (25.cd6?? Re2 26.Rg6 fg6 27.Rc8 Rc8 28.d7 Qh2)) 24.Qf4 b6 (24...Qd3 25.d6 Rad8 26.Rf3 Qd6 27.Qd6 Rd6 28.Nc4–+) 25.Rf2 (25.Rfe1 Qd3 26.d6 Re6 27.Re6 Be6–+ (27...fe6?! 28.Rf1-/+)) 25...Qd3 26.d6 Rad8 27.Nc4 Qe4 (27...Qh3 28.a5 ba5 29.Qg3–+) 28.Qe4 Be4 29.Kg1 Bd5 30.Rd2 (30.a5 Bc4 31.Rc4 Rd6 32.ab6 ab6–+) 30...Bc4 31.Rc4 Re6 32.a5 (32.d7 Re7 33.Ra2 Red7–+) 32...Rdd6 (better 32...Red6 33.Re2–+) 33.Rd6? (33.Rf2–+) 33...Rd6 34.ab6 (34.Re4 Kf8–+ (34...ba5?! 35.Ra4–+)) 34...ab6 35.Ra4 Rd1 (35...Rd1 36.Kf2 Rb1–+) 0–1. Miquel Jaureguibeitia,Xavier (2075) – Kalegin,Evgenij (2420), 17. ch–Euro Seniors, 2017.

7.0-0 Nh5

8.b5 f5 9.d4 Nd7 10.de5 de5 11.Qd5 Kh8 12.Ne5 Ne5 13.Be5 Qd5 14.Bg7 Kg7 15.cd5 Nf6 16.Nc3 Rd8 17.Rac1 b6 18.Bf3 Bb7 19.Rfd1 Rd7 20.h4 Rad8 21.a4 a6 22.ba6 Ba6 23.a5 ba5 24.Ra1 Bb7 25.Ra5 Kf7 26.Rc5 Ke7 27.Kf1 Ba8 28.g3 Rc8 29.Ke1 Ke8 30.Ra1 Kd8 31.Ra6 Rd6 32.Ra7 Rd7? 33.Rca5 Bd5 34.Nd5 Nd5 35.Bd5 Ke7 36.Bc6 Rd6 37.Rc5 Rd3 38.Bb7 Rb8 39.Rc7 Kd8 40.Rh7 Rb3 41.Be4! R8b7 42.Bb7 (42...Rb1 43.Ke2 Rb2 44.Kf3 Rf2 45.Kf2 Ke8 46.Ra8) 1–0. orane (2115) – topolov, Caissa.com, 2004.

8.d4 e4 9.Nfd2 Nf6 10.Nc3 Bf5 11.Qb1 (11.g4!? Be6 12.g5+/–) 11...Re8 12.Bd1 Nbd7 13.Bc2 d5 14.cd5 (worse is 14.Nd5 Nd5 15.cd5 Nf6=) 14...Nf8 15.Nce4 Nd5 16.a3 a5 17.b5 c6 18.a4 cb5 19.ab5 Rc8 20.Nc5 (better is 20.Bb3+/–) 20...Bc2+= 21.Qc2 b6 22.Ba3 bc5 23.Bc5 Nb4 24.Qa4? (24.Qc4 Ne6 25.Nb3 Nc5 26.Nc5-/+) 24...Ne6?? (better is 24...Rc5 25.dc5 Ba1 (25...Qd2?! 26.Rab1-/+) 26.Qa1 Qd2 27.Qa5 Qb2–+) 25.Nb3 The isolani on a5 becomes a target 25...Nc5 26.Nc5 Rc5 27.dc5 Ba1 28.Ra1 Re4 29.Qa5 Qa5 30.Ra5 Rc4 31.c6?? Rc1 0–1. carocan (1765) – slepejs (1695), kurnik, 2011.

7.b5 a6

8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.0-0 Nb6 12.d4= e4 (12...Be6 13.c5 dc5 14.dc5=) 13.Nfd2 d5 (13...Qe7!?=) 14.c5+= Nbd7 15.Nc3 c6 (15...Re8!?+=) 16.Qa4+– Qc7 17.Qa7 Qb8 18.Qa4 Re8?? (18...Qc7 19.Bb2 Nb8+–) 19.bc6+– bc6 20.Qc6 Re6 (20...Bb7 21.Qa4 Qa8 22.Bb5 Qa4 23.Ba4+–) 21.Qb5 Qb5 22.Nb5 Bf8 23.Bb2 Ra6 24.Nc3 (better 24.Rb1+–) 24...Be7?? (better 24...Ra7+–) 25.Ba6 Ba6 26.Ra1 Nb8 27.c6! Ne8 (27...Nc6 28.Ra6 Deflection) 28.Nd5 (28.Nd5 Bd8 29.Ne4+–) 1–0. DEFFM – GuestJWQG, freechess.org, 2018.

8.a4 ab5 9.cb5 Nbd7 10.0-0 Nc5 11.d4 ed4 12.Bd4 Ne6 13.Bb2 Ne4 14.Bg7 Kg7 15.Qb3 Qf6 16.Ra2 N6g5 17.Ng5 Qg5 18.Bf3 Nf6 19.Rc2 Be6 20.Qa3 Rac8 21.Bb7 Nd5 22.Bc8 Rc8 23.e4 Nf4 24.Qf3 Bg4 25.Qg3 Nh5 26.Qe3 Qh4 27.g3 Qh3 28.f4 f5 29.e5 Rf8 30.Rc7 Kg8 0–1. Abdullaevich – emkosmos, lichess.org, 2019.

7.b5 c6

8.a4 Nbd7 9.d4 e4 10.Nfd2 d5 (10...c5 11.0-0+=) 11.0-0 (11.cd5 cd5 12.Nc3 b6+=) 11...Qc7 (11...cb5 12.ab5 dc4 13.Nc4+=) 12.Nc3 Re8 (12...Rd8 13.Rc1 Qd6 14.Qb3+=) 13.a5 Nf8 (13...dc4 14.Bc4 c5 15.Qc2 cd4 16.Nce4 Ne4 17.Bf7 (worse 17.Ne4 Ne5 18.Bd3 Qc2 19.Bc2 d3=) 17...Kf7 18.Qc7 Nd2 19.Rfd1+–) 14.Qb3 (14.cd5 cd5 15.Qb3 Be6+–) 14...Be6 (14...Bg4 15.Bg4 Ng4 16.g3 dc4 17.Qc4+=) 15.a6 (15.cd5 cd5 16.Rfc1 Qd8+–) 15...Rab8 (15...dc4 16.Nc4 ba6 17.ba6=) 16.b6 (16.cd5 Nd5 17.Qc2 cb5 18.Bb5 Nd7 19.Nde4 ba6 20.Bd7 Nb4+–) 16...ab6 17.cd5 Nd5 (17...Bd5 18.Nd5 Nd5 19.a7+=) 18.a7 Ra8 19.Nce4 Nf4 (19...Ne7!? 20.Qc2 Nc8+=) 20.Bc4+– Bc4 21.Qc4 Nd5 (21...b5 22.Qc2 Nd5 23.Rfc1+=) 22.Nc3 Nc3 23.Qc3 Ne6 24.Ra2 (better 24.Qb3!?+–) 24...c5 (24...Nc5!=) 25.Nf3 1–0. DEFFM – GuestQXKD, freechess.org, 2018.

8.a4 e4 9.Nd4 c5 10.Nc2 b6 11.0-0 Bb7 12.f3 Nh5 13.Nc3 Nd7 14.fe4 Ne5 15.Bh5 gh5 16.Qh5 Qe7 17.Nd5 Qe6 1–0. Abdullaevich (1835) – korgorush (1830), lichess.org, 2020.

7.b5 Be6

8.0-0 Nbd7 9.d4 ed4 10.Bd4 a6 11.a4=.

8.0-0 Nbd7 9.d4 e4 10.Nfd2+= Nb6 11.Nc3+=.

8.0-0 Nbd7 9.d4 e4 10.Nfd2 d5 11.cd5 Bd5 12.Nc3 a6? 13.Nd5+– Nd5 14.ba6 b6 (14...N7f6 15.ab7 Ra7 16.Qb3+–) 15.Ne4 N7f6 16.Nf6 Qf6 17.Bf3 Qd6? (better 17...c6+–) 18.Qb3 Nf6 19.Ba8 Ng4 20.g3 Ra8 21.Qc4 Qe7 22.h3 Ne3 (22...Nf6+–) 23.fe3 Qe3 24.Kg2 Qe4 (24...Qe7 25.Rf2 b5 26.Qb5+–) 25.Rf3 Re8 (25...Qe6 26.Qc7 Rc8 27.Qf4+–) 26.Qf7 Kh8 27.a7 (better 27.Qc7 Qe2 28.Rf2 Qa6+–) 27...Qe2 (27...c5 28.Bc3 Qa8 29.dc5 Bc3 30.cb6+–) 28.Rf2 Qe4 29.Kh2 (29.Qf3 Qf3 30.Rf3 Ra8+–) 29...Ra8 (29...h6 30.Raf1 Ra8 31.Qd7+–) 30.Rc1 c5 31.dc5 Bb2 32.cb6 Bc1 33.b7 Qb7 (33...Qe8 34.Qe8 Re8 35.b8Q Kg8 36.Qe8 Kg7 37.Qf8) 1–0. DEFFM – GuestCLWR, freechess.org, 2018.

8.0-0 Nbd7 9.d4 e4 10.Nfd2+= d5 11.cd5 Bd5 12.Nc3 Re8 13.Nd5 (13.Qc2 c6+=) 13...Nd5 14.Qb3 (14.Qc2 Qh4+=) 14...N7f6 (14...Qg5 15.Rfd1+=) 15.Nc4+= c6 (15...Qd7 16.Ne5 Qe6 17.Bc4+=) 16.a4 (16.bc6 bc6 17.Ba3 Rc8+–) 16...a5 (16...cb5 17.ab5 Re6 18.Ne5+=) 17.Rfc1 Ng4?? (better 17...Rb8+=) 18.Bg4+– cb5 (18...Rb8 19.Rab1+–) 19.Qb5 Nb4 (19...f5 20.Bd1 Re6 21.Rab1+– (21.Qb7?! Rb8 22.Qa7 Ra8+–)) 20.Nb6 (worse 20.Qb7 Nd3 21.Rc2 f5+–) 20...Rb8 21.Bd7 (worse 21.Qa5 Nd3 22.Rc2 f5+–) 21...Re7 22.Ba3 Rd7 (22...f5 23.Rab1+–) 23.Nd7 Rc8 (23...Ra8 24.Qb7 Qe8 25.Bb4 ab4 26.a5+–) 24.Qb7 Rc1 (24...Nc2 25.Ra2 Rc7 26.Qe4 Bf8 27.Bf8 Qd7+–) 25.Rc1 Nd3 26.Rc8 (26.Rc8 h6 27.Rd8 Bf8 28.Bf8 Kh8 29.Nf6 Nf2 30.Bh6) 1–0. DEFFM – GuestQYRQ, freechess.org, 2018.

7.b5 Re8

8.0-0 c5 9.d3= b6 (9...a6 10.Nc3=) 10.Nfd2 Nbd7 (10...d5 11.cd5 a6 12.d6=) 11.Bf3+– Rb8 12.Nc3 Bb7 13.Nde4 Qe7 14.Nf6 (14.a4 Ne4 15.de4 Nf6+=) 14...Nf6= (worse 14...Bf6 15.Bc6 Bg7 16.Nd5+–; worse 14...Qf6 15.Bc6 Qd8 16.Nd5+–) 15.e4 Bc8 16.h3 h5 17.Nd5 Nd5 18.cd5 f5 19.Re1 f4 20.Bh5?? (better 20.Bc3+=) 20...gh5–+ 21.Qh5 Qf7 22.Qf3 Rf8 23.a4 a5 24.Bc3 (24.ba6 Ba6 25.Bc3 Kh7–+) 24...Ra8 25.Bb2 Bd7 26.Bc3 Be8 27.Ra2 Qh5 28.g4? (28.Qh5 Bh5 29.Bd2–+) 28...fg3! 29.Qg3 (29.fg3 Rf3 Double attack (29...Rf3 Discovered attack; 29...Rf3 Decoy; 29...Qh3 Interception); 29.Qg3 Rf3 Decoy) 29...Rf3 30.Qg4 (30.Qg2 Bd7 31.h4 Raf8–+) 30...Qh3 (better 30...Rh3!? 31.Qh5 Bh5 32.f3–+) 31.Qh3 Rh3 32.Kg2 (32.Re3 Re3 33.fe3 c4 34.dc4 Rc8–+) 32...Bd7 (32...Rd3 33.Bd2 Bh5 34.Be3–+) 33.Rg1 (33.Re3 Rh4–+) 33...Rf8 (better 33...Rd3!? 34.Ra3 Rf8 35.Bb2–+) 34.Kf1 (34.Bd2 Rd3 35.Bg5 Bg4–+) 34...Rd3 (34...Rd3 35.Ra3 Rdf3–+) 0–1. GuestGCPD – GuestYPFF, freechess.org, 2017.

8.0-0 Nbd7 9.Nc3=+.

8.0-0 h6 9.d4 e4 (9...ed4 10.Bd4 a6 11.Nc3=) 10.Nfd2 Bf5 (10...a6 11.a4=) 11.Nc3 (11.a4 a6+=) 11...Nbd7 (11...c5 12.bc6 Nc6 13.Qb3+=) 12.a4 a6 (12...d5 13.a5 c6 14.a6+=) 13.a5 (13.g4 Ng4 14.Bg4 Qg5+=) 13...h5 (13...ab5 14.cb5 d5 15.Qb3+=) 14.Qa4 (14.Qb3 c5+=) 14...Ng4 (14...h4 15.h3+=) 15.ba6+– ba6 (15...Ra6 16.c5 dc5 17.Ba6 ba6 18.d5+=) 16.h3 (16.Qc6 Ndf6 17.Rfb1 Ra7+=) 16...Ngf6+= 17.Qc6 Increases the pressure on e4 17...Nh7? (better 17...Nc5! 18.dc5 Bd7+–) 18.Nde4 Ndf6 19.Bd3 Bd7 20.Nf6 Nf6 21.Qf3 Rb8 22.Rfb1 Nh7 (22...c5 23.Ne2+–) 23.Qd5 Nf6 24.Qf3 g5?? (24...Nh7 25.Bc1 Rb1 26.Rb1 c5+–) 25.Nd5 Nd5 (25...g4 26.hg4 hg4 27.Qf4+–) 26.cd5 g4 27.hg4 Bg4 (27...hg4 28.Qf4 Bb5 29.Bf5+–) 28.Qf4 Rb3 29.Ba6 Qb8 (29...Qa8 30.Bc4 Rb4+–) 30.Ra2 Qb4 (30...Qa8 31.Bc4 Rb4 32.Rc1+–) 31.Bf1 Rb8 (31...Ra8 32.a6+–) 32.a6 Rb2 (32...Qd2+–) 33.Rbb2 Qb2 34.Rb2 Rb2 35.Qe4 Ra2 (35...Bf8 36.Qe8 Ra2 37.Qb8+–) 36.Qe8 Bf8 37.Qb8 Ra1 (37...Bd7 38.Qc7 Bf5 39.a7+–) 38.a7 Be2 (38...Bf5 39.a8Q Ra8 40.Qa8+–) 39.a8Q Rf1 (39...Ra8 40.Qa8 Bd1+–) 40.Kh2 Rf2 (40...c5 41.Qf8 Kh7 42.Qg8 Kh6 43.Qaf8) 41.Qf8 Kh7 42.Qg8 Kh6 43.Qaf8 1–0. DEFFM – berserkergang, freechess.org, 2018.

7.b5 Ne8

8.0-0 e4 9.Nd4 c5 10.bc6 bc6 11.Qc2 c5 12.Nb5 Bb2 13.Qb2 Nc6 14.N5c3 Rb8 15.Qc1 Nb4 16.a3 Nd3 17.Bd3 ed3 18.Nd5 Be6 19.Nbc3 Nf6 20.Rb1 Bd5 21.Nd5 Nd5 22.cd5 Qa5 23.Rb8 Rb8 24.Rd1 Rb3 25.Qc4 Ra3 26.h3 Qb4 27.Qc1 a5 28.f4 a4 29.Re1 Rb3 30.e4 a3 31.e5 de5 32.Re5 Rb1 0–1. druhynejhorsi (1830) – wojo8soul4 (1860), kurnik, 2012.

8.0-0 e4 9.Bg7 ef3 10.Bf8 fe2 11.Qe2 Kf8 12.d4 Nd7 13.Nc3 Ndf6 14.a4 Ng7 15.Qf3 Nf5 16.a5 Nh4 17.Qf4 Nh5 18.Qh6 Kg8 19.Nd5 Nf5 0–1. druhynejhorsi (1750) – dors (1810), kurnik, 2012.

7.Qc2 e4=+

8.Nd4 c5 9.bc5 dc5 10.Nb3 Qe7 (10...Na6 11.d4=+) 11.Nc3 (11.0-0 Rd8=) 11...Rd8 (11...Nc6 12.Nd5 Nd5 13.cd5-/+) 12.0-0 (12.d4 ed3 13.Bd3 Nc6=+) 12...Nc6 13.a3 (13.f3 Nb4 14.Qb1 Nd3=+) 13...Bf5 14.Rad1 Ne5 15.Na4 (15.Rb1 Nf3 16.gf3 ef3–+) 15...b6 16.Nc1 Rd6 (16...Nd3 17.Bc3-/+) 17.d4 ed3 18.Nd3 Rad8 19.Be5 Qe5 20.Ne5 Bc2 21.Rd6 Rd6 22.Nc3 Ne4 23.Ne4 Be4 24.Nf3 (24.f4 Be5 25.fe5 Re6-/+) 24...Bb2 25.h3 a5 (25...Bc6 26.Rb1 Ba3 27.Ra1 Bf3 28.gf3=+) 26.Ng5 Bc2 27.Bf3 Ba3 28.Bd5 (28.Ra1 Bb4-/+) 28...Kg7–+ 29.f4 (29.Ra1!? Bb4 30.Ra2–+) 29…Bb4 (30.Ra1 f5–+; 29...h6 30.Ra1 Bb4 31.Nf3–+) 0–1. Van Esbroeck – Doblas, corr WCCF–CAPEA, 1995.

8.Ng5 Qe7 9.h4 Nc6 10.a3 Bg4 11.Nc3 h6 12.Bg4 Ng4 13.Nge4 f5 14.Nd5 Qf7 15.Bg7 Kg7 16.Ng5 Qe8 17.f4 hg5 18.hg5 Rh8 19.Rh8 Qh8 20.0-0-0 Nf2 21.Rf1 Ne4 22.Qb2 Kf7 23.Qh8 Rh8 24.Nc7 Rh2 25.d3 Nc3 26.Rf2 Ke7 27.Kc2 Na4 28.Kb3 Nb6 29.Nd5 Nd5 30.cd5 Nd8 31.e4 fe4 32.Re2 Kf7 33.de4 b6 34.e5 Nb7 35.e6 Ke7 36.Rf2 Nd8 37.f5 gf5 38.g6 Kf8 0–1. ArgosZgZ – ibito, lichess.org, 2018.

7.d3 a6

8.0-0 b5 9.Nbd2 Nbd7 10.a4 bc4 11.dc4 a5 12.b5 Nc5 13.Nb3 Nfe4 14.Nc5 Nc5 15.Nd2 Bb7 16.Bf3 e4 17.Bg7 Kg7 18.Be2 f5 19.Nb3 Qf6 (19...Nb3 20.Qb3 f4 21.ef4 Rf4 22.c5+=) 20.Ra3 Ne6 21.c5 dc5 22.Bc4 Rfd8 23.Qc2 Bd5 24.Raa1 Qe5 25.Rad1 Bc4 26.Qc4 Rd1 (26...Rd6!?=) 27.Rd1+= Rd8 28.Re1 Rd3 29.Na5 Qb2 30.Qe6 Qd2 31.Rf1 Qa5 32.g4 Qa4 33.Qe7 Kg8 34.gf5 Rd1 (34...Qb5?? 35.f6 Qd7 36.f7 Kh8 37.f8Q) 35.f6 Rf1 36.Kg2 Rf2 37.Kf2 Qa2 38.Kg3 Qf7 39.Qd8 Qf8 40.Qd5 (40.Qc7?! Qf6 41.Qb8 Kg7 42.Qb7 Kg8 43.Qe4 Qg5 44.Kf3 Qh5 45.Qg4 Qd5 46.Kg3 Qd6 47.Qf4 Qb6 48.Qc4 Kf8+=) 40...Qf7 41.Qc6 (41.Qc5?! Qf6 42.Qc4 Kf8 43.Qe4 Qg5 44.Kf3 Qb5 45.Qf4 Ke8 46.Qc7 h6=) 41...c4 42.Kf4 c3 43.Qc3 Qa2 44.Ke4 1–0. Kempinski,Robert (2620) – Sandipan,Chanda (2550), Moscow Aeroflot op–A, 2005. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a6)

8.Nbd2 Ne8 9.Qc2 Nc6 10.a3 f5 11.b5 Nb8 12.c5 (12.a4 ab5 13.ab5 Ra1 14.Ba1 g5=) 12...Be6 13.ba6 Na6 14.cd6 cd6 15.Rc1 g5 16.h4 h6 (16...g4!? 17.Ng5 Bc8=) 17.hg5+= hg5 18.d4 Rc8 19.Qb1 Rc1 20.Qc1 (20.Bc1 g4 21.Qb7 Nac7+=) 20...e4 21.Ng1 d5 22.Bd1 (22.Rh5 f4 23.Nb3 Nd6+=) 22...f4= 23.Ne2 Qf6 24.Rf1 Nd6 25.Bb3 Nf7 (25...Rc8 26.Qb1=) 26.Nc3 Qf5 27.Kd1 (27.Qd1 Nc7=) 27...Nh6 (27...fe3 28.fe3 Qg4 29.Ne2 Qg2 30.Rg1+=) 28.Kc2 (28.Ke1=) 28...Bd4 (28...Nc7+=) 29.Kb1?? (better is 29.ed4 e3 30.Kd1+=) 29...Bg7–+ (29...fe3 30.fe3 Qg6 31.Nd5 (31.ed4?! e3 32.Qc2 Qc2 33.Kc2 ed2 34.Rf8 Kf8+/–) 31...Rf1 32.Qf1+– (32.Nf1?! Bb2 33.Qb2 Kf8 34.Qh8 Ng8+=)) 30.Na4 Re8 (30...Rc8 31.Bc2–+) 31.Qd1 (31.Bg7!? Kg7 32.Qb2 Qf6 33.Nc3-/+) 31...b5–+ 32.Bg7 ba4 (better is 32...Kg7!? 33.Nc3 b4–+) 33.Bh6+= ab3 34.Qh5 d4?? (34...Rb8 35.Bg5 Bf7 36.Qh4=) 35.Qg5 (better is 35.Qe8 Kh7 36.Bg5+–) 35...Qg5= 36.Bg5 de3 37.fe3 ½–½. Gambaeck,Bjoern (2180) – Koroteeva,K (1970), 4th Summer Cup, Porto Carras GRE, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.d3)

7.d3 h6

8.0-0 Be6 9.Nbd2 Nbd7 10.Qc2 Nh7 (10...Re8 11.Rfd1=) 11.d4+= f5 12.de5 de5 13.c5 Ng5 14.Bc4 (14.c6 bc6 15.Qc6 Re8+/–) 14...Qe7 15.Rfd1 Rad8 16.Rac1 Nf3 17.Nf3 Bf7 ½–½. Bravo,Angelo – Cardoso,Pedro M, POR–chT2 Lisbon, 1998. (=1.Nf3 d6 2.c4 Nf6 3.b4 g6 4.Bb2 Bg7 5.e3 0-0 6.Be2 e5 7.d3 h6)

8.0-0 Be6 9.Nbd2 Re8 10.Nb3 Nbd7 11.Rc1 b6 12.d4 e4 13.Nfd2 c6 14.a4 a6 15.Qc2 Bf5 16.Ba3 h5 17.c5 dc5 18.dc5 bc5 19.bc5 Ng4 20.Nc4 Qh4 21.Bg4 Bg4 22.Bb2 Bb2 23.Qb2 Rab8 24.Qa2 Bf3 25.gf3 ef3 26.Kh1 Re4 27.Nbd2 Qh3 28.Rg1 Rh4 29.Nf1 Rb4 30.Nd6 Ne5 31.Rg6 Kf8 32.Rg3 Qd7 33.e4 Rg4 34.Qd2 Rg3 35.fg3 Qh3 36.Nf5 Kg8 37.N1e3 Nd3 38.Qd3 Rb2 39.Rc2 Rb1 40.Nd1 Rb3 41.Qd8 Kh7 42.Rf2 1–0. Tu Hoang Thong – Canfell, Canberra 1995.

8.Nbd2 Be6 9.Qc2 Nfd7 10.d4 f5 11.d5 Bf7 12.e4 f4 (12...a5 13.b5=) 13.c5 dc5 14.bc5 c6 15.Nc4 cd5 16.ed5 Bd5 17.Qg6 Bf7 18.Qd6 Qf6 (18...e4 19.Bg7 Kg7 20.Nfe5 Ne5 21.Ne5 Qd6 22.cd6=) 19.0-0 (better is 19.Nfe5!? Ne5 20.Ne5+/– (worse is 20.Be5 Qd6 21.cd6 Re8+=)) 19...Qd6= 20.Nd6 Nc6 21.Nf5 (21.Rfc1 Rab8+=) 21...Nc5 22.Ng7 Kg7 23.Ne5 Na4 24.Nf7 Nb2 25.Nd6 Nd4 26.Bg4 Rf6 (26...b6 27.Rab1 Rf6 28.Nc8=) 27.Nb7+= Rb8 28.Nc5 Rb5 29.Nb3 Nb3 30.ab3 a6 31.Be2 Rb3 32.Ba6 Rb4 33.Rfc1 Na4 34.Rc7 Kf8 35.Rd1 Re6? 36.h4 Nb6 37.Rb7 Re7 38.Rb8 Re8 39.Re8+– Ke8 40.Rd6 h5 41.Rh6 Rb1 42.Kh2 Rb2 43.f3 Nd5 44.Rh5 Ne3 45.Rg5 Kf7 46.h5 Rb6 47.Bd3 Rd6 48.Be4 Rd1 49.h6 Nf1 50.Kh3 Ne3 51.Rg7 Kf6 52.Rg6 Ke5 53.Kh4 Rg1? 54.Rg8 Nf5 55.Bf5 Kf5 56.Rf8 Kg6 57.Rf4 Kh6 58.g3 Kg6 59.Ra4 Rb1 60.Kg4 Rb6 61.f4 Kf6 62.Ra5 Rc6 63.Ra3 Rb6 64.Kf3 Rc6 65.g4 Kg6 66.g5 Kh5 67.Ra5 Rb6 68.Rd5 Ra6 69.Rd1 Ra3 70.Ke4 Ra4 71.Ke5 Ra5 72.Rd5 Ra4 73.Kf5 Ra8 74.Rd6 Ra5 75.Kf6 Ra8 76.g6 Rf8 77.Ke7 (77.Ke7 Rg8 78.f5+–) 1–0. Lopatskaya,Elena V (2255) – Kovalevskaya,Ekaterina (2350), Elista RUS–ch (Women), 1997. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 h6)

7.d4 ed4

8.ed4 a5 9.b5 Re8 10.0-0 Bg4 11.h3 Bf5 12.Nbd2 Ne4 13.g4 Nd2 14.Nd2 Bc8 15.Bf3 Nd7 16.Rb1 Nf6 17.Re1 Re1 18.Qe1 a4 19.c5 (19.Qe3!?+=) 19...d5 20.Nf1 Bd7 21.Bc1 Qe8 22.Be3 (better 22.Qe8!? Re8 23.Ne3+=) 22...Bb5-/+ 23.Ng3 c6 24.Qb4 a3 25.Re1 Qd8 26.Bg5 h6 27.Bf4 Nd7 28.Be5? (better 28.Bd5 Ra4 29.Bf7 Kf7 30.Qb3 Rc4 31.Ne4 Bd4 32.Nd6 Kg8 33.Re8 Qe8 34.Ne8 Nc5 35.Qa3=) 28...Ne5-+ 29.de5 Qg5 (29...Qa5 30.Qa5 Ra5 31.Be2-+) 30.e6 (better 30.Bd5!? Be5 31.Bg2-/+) 30...fe6-+ 31.Re6 Rf8 (31...Qc1 32.Kg2 Qb2 33.Qf4-+) 32.Qb3 (better 32.Qa3!? Qf4 33.Kg2-+) 32...Qf4 33.Kg2 Qf7 34.Rd6 Bc4 35.Qa3 Be5 36.h4 (36.g5 hg5 37.Nh1 Qf5-+) 36...Bd6 (36...d4 37.h5 Bd6 38.hg6 Qg6 39.cd6 Rf3 A) 40.Kf3?? Bd5 41.Ke2 Qc2 42.Ke1 d3 (42...Qa2?? 43.Qa2 Ba2 44.d7+-) 43.Qd3 Qd3-+; B) 40.Qf3-+) 37.cd6 Qf6 (37...Ba2!? 38.h5 Bb1 39.Qb3 gh5 40.gh5-+) 38.h5 gh5 39.Nf5? (39.Nh5 Qf7 40.Ng3-+) 39...hg4 40.Bg4 Qg5 41.Qg3 d4 (41...Ba2 42.d7 c5 43.f4-+) 42.f4 (42.Nd4 Rd8 43.a3 Bd5 44.Kh3 Qf6-+) 42...Bd5 (42...Qf6!? 43.Nh6 Qh6 44.Be6 Kh8 45.Bc4-+) 43.Kh2 Qf6 44.Ne7 Kh8 45.f5 (45.Nd5 cd5 46.d7 Rg8-+) 45...d3 (better 45...Bf7-+) 46.Ng6 Kh7?? (better 46...Kg7 47.Nf8 Kf8-+ (47...Qf8?? 48.Bh5 Kf6 49.d7+-)) 47.Nf8+- Qf8 48.d7 d2?? (48...Qd8 49.f6 Qf6 50.Bf5 Qf5+-) 49.Qd6 (49.Qc7 Bf7 50.d8Q Qd8 51.Qd8+- (51.Qf7 Kh8 52.f6 Qb8 53.Kh3 Qg8+-)) 49...Qd6 50.Kh3 Qd7 (50...Qf4 51.Be2 Qe3 52.Kg4 Qe2 53.Kg3 Qf3 54.Kh4 d1Q 55.d8Q Qdh1) 51.f6 (51.Kh2 Qe7 52.a4 Qh4 53.Kg1 Qg3 54.Kf1 Qe1) 51...Qg4! 52.Kg4 (52.Kg4 d1Q Mate attack) 52...d1Q 53.Kf5 (53.Kf4 Qd4 54.Kg3 Qg1 55.Kh4 Be6 56.f7 Qg4) 53...Qf3 (53...Qh5 54.Kf4 Qg5) 54.Ke5-+ Qe4 55.Kd6 Qe6 56.Kc7 Qf6 57.a4 h5 (57...c5 58.Kc8 Qc6 59.Kd8 Be6 60.Ke7 Kg7 61.a5 Qd7) 58.Kb6 (58.Kd7 c5 59.a5 Qc6 60.Ke7 Kg7 61.Kd8 Be6 62.a6 Qd7) 58...h4 (58...Qe7 59.a5 c5 60.Ka7 b5 61.Kb6 Qd6 62.Ka7 Qc7 63.Ka6 Qb7) 59.a5 h3 (59...Qd6 60.Ka7 c5 61.Ka8 b6 62.Ka7 Qc7 63.Ka6 Bc4) 60.a6 ba6 61.Ka5 (61.Kc5 a5 62.Kb6 Qd8 63.Kc5 Qf8 64.Kd4 h2 65.Kd3 Qf2 66.Kc3 h1Q 67.Kd3 Qhf3) 61...h2 (61...c5 62.Ka4 Qa1) 62.Kb6 h1Q 63.Ka6 (63.Kc7 Qe7 64.Kc8 Qf3 65.Kb8 Qff8) 63...Qb1 64.Ka7 (64.Ka5 Qb5) 64…Qfa1 0-1. CheryMely (2395) - Banelevich (2555), Outpost Drill, lichess.org, 2023.

8.ed4 d5 9.c5 Ne4 10.0-0 a5 11.a3 Nc6 (11...ab4 12.ab4 Ra1 13.Ba1=+) 12.b5 Ne7 13.Ra2 (13.Nc3 Nf5=+) 13...Bg4 14.Nbd2 Nf5 15.Ne4 (better 15.Re1!?=+) 15...de4-/+ 16.Ne5 Be2 17.Qe2 Qd5 18.Raa1 (better 18.Qc4!? Qc4 19.Nc4 Nd4 20.Bd4 Bd4 21.Rd2 Bc5 22.Rd7-+) 18...Nd4-+ 19.Bd4 Qd4 (19...Be5?! 20.Be5 Qe5 21.Rfe1-/+) 20.Ng4 f5 21.Ne3 Rad8 22.Rac1 Qd3 (22...Qa4 23.b6 cb6 24.Qa2 Kh8 25.cb6-+) 23.Qa2-/+ Kh8 24.g3 (better 24.a4!? Qd7 25.Rfd1-/+) 24...Qb5-+ 25.a4 (25.Rb1 Qc6-+) 25...Qc6 26.Qc4 (26.Rb1 Rd3-+) 26...Rd4 27.Qb3 Ra4 28.Nd5 (28.Nc2 f4 29.Rcd1 h5-+) 28...Rd4 Black prepares a4 29.Nf4 a4 30.Qa2 Re8 31.h4 (31.Rce1 g5 32.Ng2 Qc5-+) 31...Be5 (31...e3 32.fe3 Re3 33.Qf2-+) 32.Ne2 (32.Rfe1 Rd7-+) 32...Rd3 33.Rc4 (33.Rfd1 Red8 34.Rd3 ed3-+) 33...a3 34.Qc2 (34.Rc2 Kg7-+) 34...Red8 35.h5 (35.Nc1 Rf3 36.Rd1 Rd1 37.Qd1-+) 35…Rd2 (35...Rd2 36.Qb3 Re2-+) 0-1. Eekamouse (2485) - AntoineBriet (2610), Rated Blitz game, lichess.org, 2016. (=1.e3 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...g6 2.c4 Bg7 3.Nf3 Nf6 4.b4 0-0 5.Bb2 d6 6.Be2 e5)

8.Nd4 c5 9.Nb5 Nc6 10.a3 Ne4 11.Bg7 Kg7 12.Nd2 Nf2 13.Kf2 a6 14.Nf3 ab5 15.cb5 Ne7 16.bc5 dc5 17.Qc1 b6 18.Rd1 Qc7 19.Qc3 Kg8 20.Qe5 Qb7 21.Nd2 f6 22.Qd6 Nf5 23.Qf4 Qe7 The isolani on e3 becomes a target 24.a4 Be6 25.Nc4 Rae8 (25...Bc4 26.Bc4 Kg7 27.Bd5=) 26.Nd6 (better 26.Nb6!? g5 27.Qf3+/-) 26...g5 27.Nf5 Bf5 (worse 27...gf4 28.Ne7 Re7 29.ef4+-) 28.Qg3 (worse 28.Qf5 Qe3 29.Kf1 Qe2 30.Kg1 Re5-/+) 28...Bg6 29.h4 h6 (29...gh4!? 30.Qf4 Qe5=+) 30.Rd6+= f5?? (better 30...Qa7+=) 31.Rg6+- Kh7 32.Rc6 (better 32.Rb6 f4 33.Bd3 Kg7 34.Rg6 Kf7 35.ef4 Qd7+-) 32...f4 33.Bd3 Kg7 34.Rg6 Kf7 35.Qf3 (35.ef4!? Qd8 36.Rd1 Qd4 37.Kf1 Re4+-) 35...Qe3 36.Qe3 Re3 (36...fe3?? 37.Ke2 Ke7 38.hg5 hg5 39.Ke3 Kd7 40.Kd2 Rf2 41.Kc3 Rg2 42.Rb6+-) 37.Rd6 Ke7 38.Rd5 c4? (38...Rd8 39.Rd8 Kd8 40.Be2+-) 39.Be2 (39.Bc4 Rc8 40.Rd4 Ra8+-) 39...Rc8 (39...c3 40.hg5 hg5 41.Rg5+-) 40.Bg4 Rc7 (40...Rd8 41.Rd8 Kd8 42.Rd1 Ke7 43.Rd7 Ke8 44.Rd6+-) 41.hg5 c3 (41...h5 42.Bh5 Rd7 43.Rd7 Kd7 44.Rd1 Ke7+-) 42.gh6 Kf6 43.Rc1 Re4 44.Bf3 (better 44.Rd6!? Kg5 45.Bd1 Rce7+-) 44...Ra4 45.Rd6 Kg5 (45...Kf5 46.Rc6 Ra2 47.Kg1+-) 46.Rc6 (better 46.Bd1 Ra2 47.Bc2 Rc2 48.Rc2 Kf5+-) 46...Ra2 47.Kg1 Re7 48.R6c3 (48.R6c3 Rb2 49.Rc7 Rc7 50.Rc7 Kh6 51.Rc6 Kg7 52.Rb6 Rb1 53.Kh2+-; worse 48.R1c3 Ra1 49.Kh2 Rae1 50.Rb6 R1e5+-) 1-0. Gonzalez Zamora,J (2530) - Diaz Rosas,J (2360), LXVII Mexican Open (4), 2022. (=1.Nf3 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5)

8.Nd4 c5 9.bc5 dc5 10.Nb3 Qe7 11.0-0 Be6 12.Nc3 Rd8 13.Qc2 Nc6 (13...Bf5 14.Qc1=+) 14.Rad1 (14.e4 Nb4 15.Qb1 Bg4=) 14...Nb4=+ 15.Qc1 Bf5 16.Ba1 b6 17.Bf3 Rd1 (17...Rac8 18.Qb2=+) 18.Rd1= Rd8 19.Rd8 Qd8 20.e4 Bg4 (better 20...Bc8=) 21.Bg4 (21.e5 Bf3 22.ef6 Qf6 23.Ne4+= (worse 23.gf3 Qf3 24.Qe1 Qg4 25.Kh1 Qc4=)) 21...Ng4-/+ 22.h3 (better 22.Nd5!? Ba1 23.f3-/+) 22...Nf2!-+ 23.Nd5 (23.Kf2 Nd3 Double attack) 23...Ne4 24.Bg7 Kg7 25.Nb4 (25.Qa1 Kh6 26.Nb4 cb4-+) 25...cb4 26.Qe3 Qd1 27.Kh2 f5 28.Nd4 h5 29.Ne6 (29.h4 Qa1 30.Ne6 Kf7 31.Nd8 Kf8-+) 29...Kf6 (29...Kf7 30.Nd4-+) 30.Nf4 Qd6 31.Kg1 Qc5 32.Nd5 (32.Qc5 bc5 (32...Nc5?! 33.Nd5 Ke6 34.Nb4-+) 33.h4 a5-+) 32...Ke5 33.Kf1 (33.Qc5 bc5 (33...Nc5?! 34.Nb4 a5 35.Nd5-+) 34.Ne7 Nc3 35.Ng6 Kd4-+) 33...Qe3 (better 33...Qc4 34.Kg1 Kd5-+) 34.Ne3 Kd4 (34...Kd4 35.Nd5 Kc4-+) 0-1. Pakleza,Z (2500) - Baskin,R (2390), Titled Tuesday 7th Sept, 2021. (=1.Nf3 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5)

7.d4 e4

8.Nfd2 Re8 9.Nc3 h5 10.Qb3 Bf5 11.a4 Nbd7 12.a5 a6 13.b5 c6 14.ba6 ba6 15.Qa4 c5 16.Nb3 Rb8 17.0-0 (17.Qa2!?=) 17...Rb4-/+ 18.Qa2 Qb8 19.Bd1 cd4 20.ed4 e3 21.Ba3 Rc4 22.Ne2 ef2 23.Rf2 Ng4 24.Rf4 (better 24.Rf3-+) 24...Bh6 25.Rf5 gf5 26.Ng3 (26.h3 Be3 27.Kh1 Nf2 28.Kh2 d5 29.g3-+) 26...Be3 (26...Re1 27.Nf1 Be3 28.Qf2 Bf2 29.Kh1 Rf1) 27.Kh1-+ Nf2 28.Kg1 Nd1 (28...Nd1 29.Kh1 Nf2 30.Kg1 Ne4 31.Kh1 Ng3 32.hg3 d5-+) 0-1. Migot,T (2350) - Perez Ponsa,F (2550), Titled Tue 5th Jul Early (1), 2022. (=1.Nf3 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5)

8.Nfd2 h5 9.Nc3 Re8 10.h3 h4 11.Qc2 Will e4 fall? Bf5 12.Nd5 Nd5= 13.cd5 Nd7 14.Rc1 Qg5 15.Rg1 Rac8 16.g4 hg3 (16...Nb6 17.Kf1 Bd7 18.Ne4 Qd5 19.Nc3=+) 17.Rg3 Qh4 18.Bg4 Bg4 19.Rg4 Qh3 20.Re4 Nf6 (better 20...Qh1!? 21.Ke2 Qh5 22.Ke1 Red8=+) 21.Re8+= Re8 22.Qb3 (22.Qa4!? Qc8 23.Qa7 Nd5 24.Qa4=) 22...Ng4 23.Nf1 (23.Rc7 Qg2 24.Bc3 Qf2 25.Kd1 Ne3 26.Kc1 Bd4-+) 23...Bh6 24.Rc3? (24.Qa4 Re7 25.Qa7 Qf3-+) 24...Bg5?? (better 24...Qh4 25.Rc2 Be3-+) 25.Qa4 (25.Bc1 Nf2 26.Kf2 Bh4 27.Ke2 Qg2 28.Kd1 Qf1 29.Kc2 c6-/+) 25...Re7-/+ 26.Qa7? (better 26.Qb5-/+) 26...Qf3 27.Rc2 (27.Qb8 Kg7 28.Bc1 Qf2 29.Kd1 Qf1 30.Kc2 Be3-+) 27...Nf2! 28.Qb8 (28.Rf2 Be3 Double attack (28...Be3 Decoy)) 28...Kg7 29.Rf2 Bh4 (29...Bh4 30.Bc1 Bf2 31.Kd2 Be3 32.Kc2 Bc1 33.Ne3 Qf2 34.Kc1 Re3 35.Qh8 Kh8 36.a4 Re1) 0-1. Srihari,L R (2410) - Grischuk,A (2775), Titled Tuesday, 2021. (=1.Nf3 E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5)

7.0-0 a5

8.a3 Nc6 9.b5 Ne7 10.d4 Nd7 11.a4 b6 12.Nc3 Bb7 13.d5 Kh8 14.e4 Ng8 15.Ne1 f5 16.f4 (16.ef5 Rf5 17.Nd3 Nh6+=) 16...ef4 17.Rf4 Qg5 (17...fe4 18.Re4 Nc5 19.Re3=) 18.g3+= Nh6 19.Nf3 Qe7 20.Nd4 (20.ef5 Qe3 21.Kh1 Nf5+=) 20...Nc5 (20...g5 21.Rf2 fe4 22.Rf8 Nf8 23.Nc2+=) 21.ef5+= Nf5 22.Nf5 gf5 (22...Rf5 23.Rf5 gf5 24.Qc2+=) 23.Qc2 Rae8 24.Bh5 (24.Raf1 Na4 25.Qa4 Qe3 26.R1f2 Bc3+=) 24...Qe3+= 25.Kf1 (better is 25.Kg2 Qd3 26.Qf2 Bc3 27.Be8 Re8 28.Rf3 Qc4 29.Bc3 Kg8 30.Re1 Re1 31.Qe1+=) 25...Qd3-/+ 26.Qd3 Nd3 27.Be8 Re8 (27...Nb2!? 28.Bh5 Bc3-/+) 28.Rb1 Nb2 (28...Re3!? 29.Rh4 Nb2 30.Rb2 Rc3–+) 29.Rb2= Bc3 30.Rc2 Be5 31.Rf5 Bc8 32.Rf7 Bh3 33.Kf2 Bd4 34.Kf3 Rc8 (34...Re1 35.Rc7 Rf1 36.Ke2+=) 35.Re2= Be5 36.Ke4 Kg8 37.Ref2 Bg4 38.Re7 Bh5 39.g4 Bg6 40.Ke3 Bc3 41.Kf3 Rf8 42.Kg2 Rf2 43.Kf2 Bd4 44.Ke2 Bc2 45.Rc7 Ba4 46.Kd3 Bg1 47.h3 Bb3 48.Rc6 Bc5+= 49.Kc3 a4 50.Rc8 Kg7 51.Rc7 Kg6 52.h4 Bd1 53.g5 a3 54.Kd2? Bg4 55.Kc3 Bf5 56.Kb3 Kh5 57.Rf7 Bb1 58.Rf4 a2 (58...a2 59.Kb2 Be3–+) 0–1. Cardona Cervera,Joaquin (2035) – Valmana Canto,Jaime (2180), Pobla de Vallbona op, 2004.

8.ba5 e4 9.Nd4=.

8.b5 c5 9.d3+= Nbd7 10.Qc2 Nb6 11.Nc3 Be6 12.a4 Qd7 13.h3 Rfc8 14.Ng5 d5 15.Nb1 d4 16.Nd2 h6 (16...Bh6 17.Ndf3 Qd6 18.Bc1+=) 17.Ne6+/- Qe6 18.Bf3 Rc7 (18...Ra7 19.Rfe1 Qf5 20.Nf1+/-) 19.Rfe1 Qd7 (19...Qd6 20.Nb3+/-) 20.ed4+- ed4 21.Nb3 Nc8? (better 21...Qd6+-) 22.Bb7! Rb7 23.Nc5 Qc7 24.Nb7 Qb7 25.Bd4 Nd6 (25...Ne7 26.c5 Nfd5 27.c6+-) 26.c5 Nf5 27.c6 Qc8 (27...Qc7 28.Be5 Qb6 29.Rac1+-) 28.Be5 Nd5 29.Qc5 Nb4 30.Qc4 Be5 31.Re5 Nd6 (31...Qc7 32.Rae1 Nd6 33.Qc3+-) 32.Qc3 Qc7 33.Rae1 Ra7 (33...Qb6+-) 34.Re8! (34.Re8 Ne8 35.Re8 Kh7 36.Rh8) 1-0. Adlai – Bulket, internet, 2021.

8.b5 Nfd7 9.d4+= e4 10.Nfd2 f5 11.Qb3 (11.Nc3 c5+=) 11...Kh8 (11...a4 12.Qa3+=) 12.Nc3 (12.f3 a4 13.Qa3 ef3 14.Bf3 Qg5+=) 12...Nf6 (12...Nb6 13.f3+=) 13.Rad1 Be6 14.f3 d5 (14...Bh6 15.Na4 Bg7 16.d5 ef3 17.Nf3+=) 15.cd5+– Nd5 (15...a4 16.Na4 Bd5 17.Nc4+–) 16.fe4 Ne3 17.Qe6 Nd1 (17...Nf1 18.Nf1 (18.Kf1?! fe4 19.Kg1 Re8+–) 18...fe4 19.Qe4+–) 18.Rd1 Qd4 19.Kh1 fe4 (19...Qb4 20.Nc4 Bc3 21.Ba3 Qb5 22.Bf8+–) 20.Nc4 (20.Nde4 Qe5 21.Qc4 Ra7+–) 20...Qf6 21.Qe4 Nd7? (better 21...c6+–) 22.Qb7 Rae8 (22...Ne5 23.Ne4 (23.Qc7?! Nc4 24.Qc4 Rac8+–) 23...Qf4 24.g3+–) 23.Qc7 Re2 (23...Ne5 24.Ne4 Qf7 25.Qf7 Nf7 (25...Rf7?? 26.Ned6 Rff8 27.Ne8 Re8 28.Na5+–) 26.Bg7 Kg7+–) 24.Ne2 (24.Qd7?? Qf1 25.Rf1 Rf1) 24...Qf1 (24...Qh4 25.Bg7 (25.Rd7?? Rf1 26.Ng1 Rg1 27.Kg1 Qe1) 25...Kg7 26.Na5+–) 25.Rf1 Rf1 26.Ng1 Bb2 27.Nb2 Nf6 28.b6 Ng4 29.Qc8 (29.Qc8 Kg7 30.Qg4+–) 1–0. DEFFM – jangazy, freechess.org, 2018.

8.b5 e4 9.Ne1 (9.Nd4 b6=) 9...Nbd7 10.d4 ed3 11.Nd3 Ne4 12.Bg7 Kg7 13.a4 (13.f3 Ng5=) 13...Ndc5 14.Nc5 Nc5 15.Nc3 Be6 16.e4 (16.b6 c6=) 16...f5 17.ef5 Bf5 18.Nd5 Be4 19.h3 Bd5 20.Qd5 Rf5 21.Qd4 Kg8 (21...Qf6 22.Qf6 Rf6 23.Bf3=) 22.Ra3 Re5 (22...Qf6 23.Qd2=) 23.Bd1 (23.Bf3 Qf6+=) 23...Qe7 24.f4 Re4 25.Qd2 Re8 26.f5 (26.Bf3 Re1=) 26...Re1 (26...Rc4 27.fg6 Qe5 28.Qh6+/–) 27.Raf3 Rf1 28.Kf1 Qe4 29.f6 Qc4 30.Be2 Qf7 31.Qa5 Ne4 32.Qb4 Nf6 33.Qb2 Kg7 34.a5 Qe6 35.a6 Qe5? 36.Qe5+– Re5 37.a7 Re8+/– 38.g4?? Ra8= 39.Ra3 Ne4 40.Bf3 Nc5 41.Ke2 Kf6 42.Ke3 Ke7 43.Bd1 g5 44.Bc2 h6 45.Kd4 Ne6 46.Ke3 d5+= 47.Bf5 c5 48.Ra5 Kd6 49.Be6 Ke6 1–0. Ambrosi,Arcangelo (1855) – Innocenti,Luca (1665), Lucca op, 2000.

8.b5 Be6 9.a4 c5 (9...Nbd7 10.Ng5=) 10.Ng5 (10.Nc3 h6=) 10...Qd7 (10...Bf5 11.d3=) 11.Nc3 h6 (11...Qc7 12.d3+=) 12.Ne6 Qe6 13.d3 Nbd7 Black intends e4 14.Bf3 Rab8 (14...Ra7 15.Bd5 Nd5 16.Nd5+=) 15.Qb3 (15.Nd5 b6+–) 15...Nb6+= 16.h3 Rfe8 17.Rfc1 e4 (better 17...Qd7!?+=) 18.Ne4+– Ne4 19.Be4 (19.de4?! Bb2 20.Qb2 Nc4+=) 19...f5 (19...Be5 20.Bc3 Qf6 21.Be5 Qe5 22.Qc2+–) 20.Bf3 Bb2 21.Qb2 d5 (better 21...Re7!?+–) 22.cd5+– Nd5 (22...Qd6 23.Qd2+–) 23.Rc5 Ne3 (23...Nb4+–) 24.Rc7 Re7 25.Re7 Qe7 26.Re1 Nc4 (26...f4+–) 27.Bd5 (27.Re7?! Nb2 28.Bd5 Kh8+–; 27.dc4?! Qe1 28.Kh2 Qe7=) 27...Qf7 28.Qf6 (28.Qf6 Nd6 29.Qd6 Qd5 30.Qd5 Kf8 31.Qd6 Kg8 32.Re7 Rc8 33.Qg6 Kf8 34.Qg7) 1–0. Pierre – GuestVelpap, internet, 2020.

8.b5 Re8 9.d3 c6 10.Nbd2 Qc7 11.h3 Nbd7 12.a4 Nc5 Black prepares the advance e4 13.Re1 e4 14.de4 Nfe4 15.Bg7 Kg7 16.Ne4 Ne4 17.Bd3 Nc5 18.Bc2 Be6 19.Qd4 Kg8 20.Rad1 Rad8 21.Re2 Qe7 22.bc6 bc6 23.Red2 d5 24.Ne5 Qd6 25.Ng4 Bg4 26.hg4 Ne6 27.Qf6 Qc5 28.cd5 Rd5 29.Bb3 Rd2 30.Rd2 Qe7 31.Qe7 Re7 32.Rc2 Rc7 (32...Nd8 33.Rc5 Ra7 34.g5+=) 33.Be6+/- fe6 34.Rc5 Kf7 35.Kf1 Ke7 36.Ra5 Kd6 37.Ke2 Rb7 38.f4 h6 39.g5 h5 40.Ra8 Rb2 41.Kf3 Ra2 42.Rg8 Ra4 43.Rg6 c5 44.f5 c4? (better 44...Ke5 45.f6 Ra8+-) 45.Re6 Kd7 46.g6 (46.Rh6 c3 47.Ke2 Ra2 48.Kd3 Rg2 49.Rh5 c2+-) 46...c3 47.g7 Ra8 (47...Rg4 48.Rg6 Rg6 49.fg6 c2+-) 48.Ra6! Ra6 49.g8Q Rc6 (49...c2 50.Qf7 Kd6 51.Qe6 Kc7 52.Qe7 Kb6 53.Qd6 Kb7+-) 50.Qg7 Kc8 51.f6 c2 52.f7 (52.f7 Kb7 53.f8Q Rc7 54.Qb4 Kc6 55.Qc4 Kb7 56.Qgc7 Ka8 57.Qd5) 1-0. PEREIRA – Ristus, internet, 2022.

8.b5 Ne8 9.d4 e4 10.Nfd2 f5 11.a4 Nf6 12.Nb3 Be6 13.Qe1 b6 14.Qd2 Nbd7 15.Nc3 d5 16.Qd1 (16.Ba3 Rf7 17.c5 bc5 18.Bc5 Nc5 19.Nc5 Qd6+/–) 16...dc4 17.Nd2 Nd5 18.Nd5 Bd5 19.Bc4 Nf6 20.Rc1 Qd7 21.Bb3 Rac8 22.Ba3 Rf7 23.Nc4 Bc4 (23...Qe6!? 24.Rc3 Nd7+=) 24.Rc4+/– Nd5 25.Rc6 Bf8 26.Bf8 Kf8 27.Qc1 Rg7 (27...Kg7 28.Bd5 Qd5 29.Rb6+/–) 28.Bd5+– Qd5 29.Rb6! Qb3 30.Rc6 1–0. Jaeger,Erich (2015) – Ferreira,Getulio (2000), remoteschach.de, 2007.

8.Nc3 ab4 9.Nd5 c5 (9...Nd5 10.cd5 e4 11.Bg7 ef3 12.Bf8 fe2 13.Qe2 Kf8 14.d4-/+) 10.d4 (10.Nf6 Qf6 11.Qc2 Be6-/+) 10...Nd5 11.cd5 ed4 12.ed4 Nd7 (12...Re8 13.Qd2-/+) 13.Qc2 (13.Qb3 Re8 14.Rfe1 Qa5-/+) 13...b6 (13...Nb6 14.Qb3-/+) 14.dc5 bc5 15.Rfe1 (15.Bg7!? Kg7 16.Rfe1-/+) 15...Bb2–+ 16.Qb2 Qf6 (16...Bb7 17.Red1–+) 17.Qf6 (17.Qd2 Nb6 18.Rac1 Bb7–+) 17...Nf6–+ 18.Bc4 Ba6 19.Nd2 Bc4 20.Nc4 Nd5 21.Nd6 Nc3 22.Ne4 Ne4 23.Re4 b3 (23...Rfd8 24.Kf1–+) 24.a4 Rfd8 (24...c4 25.Kf1 c3 26.Rc4–+) 25.Kf1 b2 (25...f5 26.Rc4 Rdb8 27.Ke2-/+) 26.Rb1-/+ Rd2 (26...f5 27.Re7 Rdb8 28.Re2–+) 27.Re2 Rad8 (better 27...Re2!? 28.Ke2 Ra4 29.Rb2 h6-/+) 28.Rb2= Rb2 29.Rb2 Rd1 (29...Ra8 30.Ra2=) 30.Ke2 Ra1 31.Rc2 ½–½. tsodikovich (1820) – gkong (2070), gameknot.com, 2015.

8.a3 ab4 9.ab4 Ra1

10.Ba1 c6 11.d3 Qb6 (11...Na6 12.Bc3=) 12.Bc3 Nbd7 (12...Bg4 13.Nbd2=) 13.Nbd2+= Re8 14.Qa1 Qc7 15.Rc1 d5 16.h3 Qb8 17.Bd1 (17.b5 h6+=) 17...h6 (17...Qd6 18.Bb3=) 18.Bc2 b6 19.Nb3 (19.d4 ed4 20.Nd4 c5 21.bc5 bc5+=) 19...c5 20.bc5 bc5 21.Qa4 (21.Rb1 Qd6=) 21...d4=+ 22.ed4 ed4 23.Bd2 Bb7 24.Bd1 Qd6 25.Qa7 Bc6 26.Qa3 Bf8 (26...Ra8 27.Qb2=+) 27.Na5 Ba8 28.Rb1 Nh5 29.Qc1 Kh7 30.Nb3 Ne5 31.Ne1 Qc6 32.Na5 Qc7 (32...Nd3 33.Nc6 Nc1 34.Nd4 cd4 35.Rc1=) 33.Qb2 (33.Bh5 gh5 34.Qd1 h4=) 33...Bd6 (33...Nf6 34.Ba4 Ned7 35.Nc2=+) 34.Qc1 (34.Bh5 gh5 35.Qc1 Rg8=) 34...Bf8 (34...Ng7 35.Ba4 Re7 36.Ra1=+) 35.Qb2 (35.Bh5 gh5 36.Qd1 h4=) 35...Qe7 (35...Nf6=+) 36.Qb6 (36.Bh5 gh5 37.Qb5 Qe6=) 36...Qh4 (better 36...Nf4!-/+) 37.Qc7 Nf4 38.Bf4?? (better 38.Rb8 Rb8 39.Qb8 Ned3 40.g3 Nh3 41.Kh2=) 38...Qf4–+ 39.Qa7 (39.Ba4 Nf3! 40.Nf3 Qc7 41.Be8 Bf3 42.gf3 Qa5 43.Bf7–+) 39...Kg8 (better 39...Nc6 40.Bf3 Na7 41.Ba8 Ra8–+) 40.Ba4=+ Rd8 41.Qb6 Qg5 (better 41...Be7=+) 42.Kf1?? (42.f4 Qf4 43.Qd8 Qe3 44.Kh2 Qf4 45.Kh1 Qf1 46.Kh2 Qf4 47.Kg1 Qe3 48.Kh1 Qh3 49.Kg1 Qe3 50.Kh1 Qh3 51.Kg1 Qe3 52.Kh1 Qh3=) 42...h5 (better 42...Nd3!? 43.Nd3 Bg2 44.Ke2 Rd6–+) 43.f3 (43.Nb7 Rb8 44.Qc7 Rb7 45.Rb7 Bb7 46.Qb7 Qc1=+) 43...Be7 44.Qc7 (44.Nc6 Bc6 45.Bc6 Nc6 46.Qc6 Qg3-/+) 44...Rf8 (44...Bd6 45.Qa7-/+) 45.Rb8 (45.Rb2!?=) 45...Qe3 46.Rf8? (46.Rb2 Bd8 47.Qa7 Bf3 48.gf3 Nf3 49.Nf3 Qf3 50.Rf2 Qd3 51.Kg2–+) 46...Kf8–+ (46...Bf8?! 47.Be8=+) 47.Qb8 (47.Nc2 Qc1 48.Ne1 Nd3–+) 47...Kg7 48.Qb2 (48.Qa8 Bh4 49.Qf8 Kf8 50.g3 Bg3 51.Kg2 Qf2 52.Kh1 Qf1) 48...Bh4 (better 48...Qe1! 49.Ke1 Nd3 50.Kd2 Nb2–+) 49.Qe2 Qf4 0–1. Benko,Pal C – Doda,Zbigniew, Hoogovens, 1969. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 a5 8.a3 ab4 9.ab4 Ra1)

10.Ba1 c6 11.h3 Nbd7 12.Qc2 Ne8 (12...e4 13.Ne1=) 13.Nc3 f5 14.e4 (14.d4 e4 15.Nd2 Nc7+=) 14...Ndf6= 15.d4 ed4 16.Nd4 fe4 17.Ne4 Ne4 18.Qe4 Nf6 19.Qd3 Qe7 20.Re1 Qf7 21.Bf3 Nh5 22.Qe3 Nf4 23.Kh2 (better is 23.c5 d5 24.Bb2=) 23...Be5 24.g3 Nh5 (better is 24...Nh3 25.b5 Bd7-/+) 25.Bh5 gh5 26.f4 Bg7 27.Nf3 Ba1+= 28.Ra1 Qc4 29.Re1 Qf7 30.Ng5 Qf5 31.Qe4 h6 32.Qf5 Bf5 33.Nf3 Kf7 0–1. emeryt85 – borcica (1615), kurnik, 2012.

10.Ba1 Nc6 11.Qb3 Be6 12.Nc3 h6 13.d4 ed4 14.Nd4 Nd4 15.ed4 Re8 16.Bf3 White intends d5 16...c6 17.d5 cd5 18.Bd5 Nd5 19.Nd5 Bd5 20.Bg7 Kg7 21.cd5= Qe7 22.Qc4 Qe4 23.Qb5 Re5 Exerts pressure on the isolated pawn 24.Qb7 Qd5 25.Qb8 Qd4 26.h3 Re7 27.Rc1 Re2-/+ 28.Rf1 Rb2 29.b5 d5 30.h4 h5 31.g3 Rb4 32.Re1 Rb3 33.Re8 Rb1 34.Kg2 Rb2 35.Qe5 Qe5 36.Re5 Rb5 37.Kf3 Kf6 38.Re8 Kf5 39.Rd8 Rb3 40.Ke2 Ke4 41.Rd7 f5 42.Rd6 Rb2 43.Ke1 Kf3 44.Rg6 Rb1 45.Kd2 Kf2 46.Rg5 Rb2 47.Kd3 Rb3 48.Kd4 Rg3 49.Rf5 Kg2 50.Rh5 Kh3 51.Rh8 Rg4 Attacks the isolani on h4 52.Kd5 Rh4 53.Rg8 Rg4 54.Rf8 Rh4 55.Ke5 Rh5 56.Kf4 Rh4 57.Kf3 Rh6 58.Rf5 Rh7 59.Kf2 Rh8 60.Rf3 Kh2 61.Kf1 Rh7 62.Rf2 Kh3 63.Kg1 Rg7 64.Kf1 Rh7 65.Rf3 Kg4 66.Rf2 Kg3 67.Rg2 Kf3 68.Rf2 1–0. orangutanb4 (2015) – rufusek1980 (1660), kurnik, 2011.

10.Ba1 Nc6 11.b5 Ne7 12.d4 ed4 13.Nd4 Nf5 14.Bf3 (14.Bd3 Nd4 15.Bd4 Re8+=) 14...Nh4= 15.Nd2 Nf3 16.Qf3 Qe7 17.h3 Qe5 (17...Re8 18.b6=) 18.Nc6+= Qe8 (18...Qe6 19.Nb4+=) 19.Bf6 (19.Na5 Qe6+/-) 19...Bf6+= 20.Qf6 bc6 21.bc6 (21.Rb1 Bf5 22.e4 A) 22...Be4? 23.Re1+- (worse 23.Ne4 Qe4 24.Rc1 Re8-/+); B) 22...Bd7+/-) 21...Qc6= 22.h4 Bb7 23.Nf3 (better 23.e4=) 23...d5?? (23...Qc4!? 24.h5 Qe6 (worse 24...gh5 25.Qg5 Kh8 26.Qf6 Kg8 27.Qg5 Kh8 28.Qf6 Kg8=) 25.Qe6 fe6-/+) 24.Qb2?? (better 24.Qc6 Bc6 25.Ne5+/-) 24...dc4=+ 25.Qc3 (25.Rc1 Qb6 26.Qe5 Bf3 27.gf3 Qc6=+) 25...Qe4 (25...Qe6 26.Ne5=+) 26.h5 (26.Rd1 c5=+) 26...Qg4 27.h6 Bf3 1-0. carlos78 (2195) - Poubelle (2145), Rated Blitz game, lichess.org, 2015.

10.Ba1 Bg4 11.Qb3 (11.d4 ed4 12.Nd4 Be2 13.Qe2 Nbd7=) 11...Nbd7 (11...e4 12.Nd4=) 12.h3 Bf5 (12...Bf3 13.Bf3 e4 14.Be2+=) 13.d4 ed4 14.Nd4 Bb1 (14...Be6 15.Nc3+=) 15.Rb1 Ne4 16.Qc2 Re8 17.Bf3 f5 18.c5 dc5 (18...d5 19.c6 bc6 20.Nc6+/-) 19.Be4 (19.Qc4 Kh8 20.Ne6 Re6 21.Bg7 Kg7 22.Qe6 Ng5+/-) 19...cd4+= (worse 19...Re4 20.bc5 Bd4 21.Bd4+/-) 20.Bd5 Kh8 21.Bd4 Bd4 22.ed4 c6 23.Bb3 (23.Bf3 Nf6 24.Qc3 Nd5+=) 23...Nf6 24.b5 cb5 25.d5 (25.Qc5 Ne4 26.Qb4 Qe7=) 25...Kg7 (25...Nd5 26.Qd3 Nf6 27.Qb5=+) 26.Rd1 (26.Rc1 Qd7= (26...Nd5? 27.Rd1+-)) 26...Qd6=+ 27.Qd3 b4 28.Qd4 Re7 29.Ra1 Qe5 (29...h6 30.Qd3=+) 30.Qe5= Re5 31.Ra7 (31.d6 Kf8=) 31...Nd5=+ 32.Rb7 Kh6 (32...Kf6=+) 33.Rb5 (33.Bd5 Rd5 34.Rb4 Rd1 35.Kh2 Kg5=) 33...Re1=+ 34.Kh2 Nc3 (34...Nf4 35.Rb4 Nd3 36.Rh4 Kg7 37.Kg3 f4 38.Rf4 Nf4 39.Kf4-/+) 35.Rb4=+ Ne4 (35...Rb1 36.f3=+) 36.f3= Nf6 37.Rb6 Kg7 38.Rb7 Kh6 39.Bf7 Re2 40.Kg1 1-0. carlos78 (2215) - firedark (2210), Rated Blitz game, lichess.org, 2014.

8.ba5 Ra5

9.Bc3 Ra8 10.d3 Na6 11.Nbd2 b6 12.a4 Nc5 13.d4 (13.a5 ba5 14.Ra5 Ra5 15.Ba5 e4 16.de4 Nfe4 17.Ne4 Ne4=) 13...ed4 14.ed4 Nce4 15.Ne4 Ne4 16.Qd3 (16.Bb2 Re8=) 16...Nc3 (16...Bf5 17.Qe3-/+) 17.Qc3=+ c5 (17...Re8 18.Rfe1=+) 18.Qd3 (18.Ra2 Re8=+) 18...Bf5 19.Qd2 (19.Qd1 Re8=+) 19...Qc7 (19...Re8 20.Rfe1-/+) 20.Bd3 (20.Rfe1 Rfe8=+) 20...Bd3 (20...Be6 21.Rfe1-/+) 21.Qd3 Qc6 (21...Rfc8 22.Rfb1=+) 22.d5 Qd7 23.Ra2 Ra4 24.Ra4 Qa4 25.Qd1? (better 25.Rb1=) 25...Qc4–+ 26.Re1 b5 27.Qd2 (27.Re7 Ra8 28.Qf1 Qd5 29.Qb5 Be5 30.Re8 Re8 31.Qe8 Kg7–+) 27...b4 (better 27...Bc3 28.Qd1–+) 28.Rd1 (28.Rc1 Bc3–+) 28...Re8 29.Qf4 (29.Rc1 Qe2 30.Qf4–+) 0–1. sirgeshdb (1895) – druje (1835), lichess.org, 2020.

9.Nc3 c6 10.Qc2 Bf5 11.Bd3 (11.e4 Bg4=) 11...Be6 12.Be2 Ra8 (12...Nbd7 13.d4=) 13.d4 e4 (better 13...ed4!? 14.Nd4 Nbd7=) 14.Ne4+– Ne4 15.Qe4 Bf5 16.Qf4 Nd7 (better 16...Re8!? 17.Qg3 Qb6+=) 17.Qd6+– Qb6 18.Bc3 White prepares c5 18...Rfd8 19.Qf4 Nf6 (19...Qa6 20.Rfc1+–) 20.c5 Nh5?? (20...Qa7 21.Rfc1 Qa3+–) 21.Qf5! Qc7 (21...gf5 22.cb6) 22.Qh3 b6 (22...Nf6 23.Bc4+–) 23.Ng5 (23.cb6!? Qb6 24.Rfb1 Qc7+–) 23...bc5 (23...Qe7 24.Qg4 Nf6 25.Qh4+–) 24.Bh5 gh5 (24...Qe7 25.Nf3 gh5 26.Rfc1+–) 25.Qh5 (25.Qf5!? Rd5 26.Qh7 Kf8+–) 25...h6 26.Nf3 Rd5 27.Qg4 Re8 (27...Qc8 28.Qg3 Qb8 29.Ne5+–) 28.a4 (28.dc5 f5 29.Qg7 Qg7 30.Bg7 Kg7+–) 28...Re6 (28...Qc8 29.Qc8 Rc8 30.a5+–) 29.dc5 Rg6 30.Qc4 (30.Qb4 Qe7 31.Bg7 Rg7+–) 30...Bc3 (30...Qe7 31.Bg7 Rc5 32.Qf4 Kg7 33.a5+–) 31.Qc3 Qe7 32.a5 (32.Rfb1 Kh7+–) 32...Rc5 33.Qb4 (better 33.Qd4 Rd5 34.Qf4+–) 33...Qf8 (33...Rg2 34.Kh1 Rg6+–) 34.a6 Rb5 (34...Re6 35.a7 Re8+–) 35.Qf8 Kf8 36.a7 (36.a7 Kg7 37.a8Q+–) 1–0. sirgeshdb (1835) – Akhunlar (1830), lichess.org, 2020.

8.b5 b6

9.Nc3 Bb7 10.d3 Nbd7 11.a4 Nc5 12.d4 ed4 13.ed4 (13.Qd4? Nfe4 14.Qg7 Kg7 15.Ne4 f6 16.Nc5 bc5-+; 13.Nd4?! Re8=) 13...Ne6 14.d5 Nc5 15.Ba3 (15.Qc2 Bc8+=) 15...Re8 16.Bc5 dc5 17.Re1 (17.Qd2 Ng4 18.Bd3 Ne5 19.Ne5 Be5=) 17...Bc8 (17...Ne4 18.Ne4 Ba1 19.Nc5=+) 18.Qc2 Bf5 19.Bd3 Bd3 20.Qd3 Qd7 21.Ne5 (21.Re8 Re8 22.Re1 Re1 23.Ne1 Ng4=) 21...Qd6= 22.Nc6?? (22.f4 Re7=) 22...Nd7?? (better 22...Ng4 23.g3 Qf6-+) 23.Ne4?? (23.Rad1 Ne5 24.Ne5 Re5+=) 23...Qf4 (23...Ba1 24.Ra1 Qf4 25.Ng3-+) 24.Ra2 (24.Rad1 Ne5 25.Ne5 Re5=) 24...Ne5?? (better 24...f5 25.Rae2 fe4 26.Re4 Re4 27.Re4 Qg5-/+) 25.Qb3?? (better 25.Ne5 Re5 26.Rae2+=) 25...Nc6-+ 26.Rae2 Nd4 (26...Ne5!? 27.Nc5 bc5 28.Re4-+) 27.Nf6 Bf6 28.Re8 Re8 (better 28...Kg7!? 29.Qb1 Re8 30.Re8 Nb3-+) 29.Re8-/+ Kg7 30.Qd1? (better 30.Qe3 Qe3 31.Re3-+) 30...Be5 31.g3 Nf3 (better 31...Qe4 32.h3 Ne2 33.Kh2 Bg3 34.fg3 Qe8 35.Qa1 Nd4-+) 32.Kg2=+ Nh4! 33.gh4 (33.Kg1!? Qe4 34.gh4 Bh2 35.Kh2 Qe8 36.Qa1 f6 37.Qg1-/+) 33...Qh2-+ 34.Kf1 Qh1 (better 34...Qh3!? 35.Ke2 Qg4 36.f3 Qc4 37.Qd3 Qh4-+) 35.Ke2= Qe4 36.Kf1 Qc4 (36...f6 37.Qb3=) 37.Qe2 Qc1 38.Kg2 (38.Qe1 Qe1 39.Ke1 Kf6=+) 38...Bf6=+ 39.Re6?? (39.Qe4 Qd2=+) 39...Qf4 (better 39...fe6 40.de6 Bh4 41.Qe5 Kh6 42.Qe4-+) 40.Qf3?? (better 40.Re4 Qf5 41.Qc4=+) 40...Qf3-+ 41.Kf3 h5 (better 41...fe6 42.Ke4 ed5 43.Kd5 Bh4-+) 42.Re7?? (better 42.d6 cd6 43.Rd6 Bh4 44.Rb6+-) 42…g5 (42...g5 43.Rc7 g4 44.Kg2 Bd8+-). GM_HUSARZ (1870) - Amon44 (2080), Rated Bullet game, lichess.org, 2015.

9.Nc3 Nbd7 10.d3 Nc5 11.Na4 (11.d4 ed4 12.ed4 Nce4+=) 11...Na4 (11...Ne6 12.d4 ed4 13.Nd4 Nd4 14.Bd4+=) 12.Qa4 e4 13.Nd2 ed3 14.Bd3 Bb7 (14...Qe7 15.Bd4+=) 15.Qc2 Re8 16.a4 (16.Rfe1 Ng4 17.Bg7 Kg7 18.Qc3 Kg8=) 16...Qe7 17.Be2 (17.Rae1 Rad8=) 17...Ne4 18.Bg7 Nd2 19.Qd2 Kg7 (19...Qg5 20.g3 Kg7 21.Rad1=) 20.Rfe1 (20.Qd4 f6=) 20...Rad8 (20...Qg5 21.Qd4 f6 22.Bf1=) 21.Red1 (21.Qd4 Kg8=) 21...Qf6 (21...Qg5 22.Qd4 Kg8 23.Qg4 Qg4 24.Bg4=+) 22.Ra3 Re5 23.f4 (23.Rd3 Rg5 24.g3 Re8=) 23...Re7 (23...Ree8 24.Bf3 Bf3 25.gf3=) 24.c5 bc5 (24...Be4 25.cb6 cb6 26.Rc3=) 25.Qa5+= Qb2 26.Qc3 Qc3 27.Rc3 Ra8 28.Ra1 Ra5 29.Kf2 Be4 30.Bf3 f5 31.Ke2 Re8 32.Rc4 (32.Kd2 Kf6=+) 32...Bf3=+ 33.gf3 (33.Kf3 Rea8=+) 33...Rea8-/+ 34.e4 Rb5! 35.ef5 (35.ab5 Exploits the pin 35...Ra1) 35...Rb2–+ 36.Kd3 gf5 37.Rc2 Rc2 38.Kc2 d5 (38...Ra5 39.Rg1 Kf6 40.Kb3–+) 39.a5 Kf6 (39...Ra6 40.Kb3 c6 41.Ka4-/+) 40.a6-/+ Ke6 41.a7 Kd7 (41...Kd6 42.Ra5–+) 42.h4 (42.h3 Kc6–+) 42...Kc6 43.Ra6 Kb5 44.Rh6 Ra7 45.Rh7 Ra4 (45...Kc4 46.Kb1–+) 46.Rc7 (46.Kd3 Rf4 47.Ke2 c6–+) 46…Rf4 (46...Rf4 47.h5 Rf3–+) 0–1. St_Jean,Benoit – Istomin,Sergei, internet, 2001.

9.d3 Bb7 10.Nc3 Nbd7 11.Nd2 Nc5 12.Qc2 Qe7 13.Rae1 Rfe8 14.Ba3 Qd7 15.Bc5 dc5 16.Bf3 Bf3 17.Nf3 Rad8 18.Rd1 Qe7 19.g3 h6 20.e4 Qd7 21.Kg2 c6 (21...Qg4!?=) 22.bc6+/- Qc6 23.Rb1 Rb8 24.Rb5 Qd6 25.Nd5 Nd5 (25...Rb7!?+/-) 26.cd5+- (26.ed5?! f5+/-) 26...Rb7 (26...Bf6 27.Nd2+-) 27.Nd2 Reb8 28.Nc4 Qc7 29.Rfb1 Bf6 (29...h5 30.h4+-) 30.Qb3 Bd8 (30...a4 31.Qa4 h5 32.h4+-) 31.a4 (better 31.Na5 Ra7+-) 31...Kg7 (31...Ra8 32.Qc3 f6 33.Rb6 Rb6 34.Rb6+- (34.Nb6?! Rb8=)) 32.Na5! ba5 (32...Ra7 33.Nc4+-) 33.Rb7 Rb7 (33...c4 34.d6 Qb7 35.Qb7 Rb7 36.Rb7+-) 34.Qb7 Qd6 (34...Qb7 35.Rb7 Kf8 36.Rb5+-) 35.Qc6 Qe7 (35...Be7 36.Rb6 Qc6 37.dc6+-) 36.Rb7 Qg5 (36...Qf6 37.Qc8 c4 38.dc4 Bb6+-) 37.Qe8 Qf6 38.Rb8 (38.Rb8 h5 39.Rd8 Kh6 40.Rd7 Kg7 41.h4 c4 42.f4 ef4 43.e5 fg3 44.ef6 Kh7 45.Rf7 Kh6 46.Qf8) 1-0. Adlai – Sentaures, internet, 2021.

9.d3 Bb7 10.Nc3 Nbd7 11.Nd2 Re8 12.Na4 (12.Bf3 Bf3 13.Qf3 Nc5+=) 12...Qe7 13.Rb1 Rad8 14.Qc2 Nf8 15.Bf3 Bf3 16.Nf3 Ne6 17.Nc3 Nc5 18.d4 ed4 19.Nd4 Rc8 20.h3 Nfe4 21.Nd5 Qd7 22.Nc6 Bb2? (better 22...f5+=) 23.Qb2+- (23.Rb2?! Kg7+/-) 23...Re6 24.f3 Ng5 (24...f5 25.fe4 Ne4 26.g4+-) 25.h4 (25.h4 Nge4 26.fe4 Ne4 27.Rf4+-) 1-0. Pereira – Denlot, internet, 2021.

9.d4 Nbd7 10.Nc3 Bb7 11.Nd2 Ne8 12.d5?! (12.Bf3! Bf3 13.Qf3 f5 14.Qd5 Kh8 15.de5 Be5 16.Na4 Bb2 17.Nb2=) 12...f5 13.Qc2 Nef6 14.f4 Qe7 15.Rae1 Rae8 16.h3 Nc5 17.Bf3 (17.Na4 Nfd7 18.Nc5 Nc5 19.Nb3 Ne4 20.Nd2) 17...Bc8 18.fe5 de5 19.Nb3 Nfd7 20.Ba3? (20.d6 cd6 (20...Qd6 21.Rd1 Qe7 22.Nd5 Qd8) 21.Nd5 Qd8 (21...Qf7?? 22.Nc7 Re7 23.Bd5+–) 22.Nc5 Nc5 23.e4 f4 24.Qe2) 20...e4 21.Bd1 Be5 22.Ne2 (22.Bb2 Nd3 23.Re2 Nb2 24.Qb2 Qf6 25.Rc2 Qg5 26.Rff2 Qg3) 22...Bd6 23.Bc5 Nc5 24.Nc5 Bc5 25.Nd4 f4 26.Qe2 Qh4 27.Qf2 Qg5 28.h4 Qe5 29.Nc2 fe3 30.Qe2 Rf2! 0–1. Plock – Roehl, Torgelow 1996.

9.d4 e4 10.Nfd2 Bb7 11.Nc3 Nbd7 12.Qb1 e4 becomes the focus of attention 12...Re8 13.d5 Qe7 14.Bd1 (14.Qc2 Bc8+=) 14...Nc5= 15.a4 h5 (15...Nd3 16.Be2 Nb2 17.Qb2=) 16.Bc2 Ng4 (16...h4 17.h3+=) 17.h3 (better is 17.Nce4!? Ne4 18.Be4+/–) 17...Ne5 18.Nce4 Ne4 19.Be4 Nc4 20.Nc4 Qe4 21.Bg7 (21.Qe4 Re4 22.Nd2 Bb2 23.Ne4 Bd5+=) 21...Kg7 (21...Qd5!? 22.f3 Kg7 23.Qb2 Kg8+=) 22.Qe4+= Re4 23.Nd2 Re5 24.e4 Rae8 25.f3 R5e7 26.Rfc1 f5 27.Rc4 fe4 28.fe4 Rf8 29.Rac1 Rff7 30.Nf3 Rf4? (better is 30...Kh6!?+=) 31.Ng5+– (worse is 31.Rc7 Rfe4 32.Ng5 R4e5 33.Ne6 Kf6 34.Re7 Bd5+–) 31...Kh6 32.Ne6 Rff7 33.Rc7 g5 34.Re7 Re7 35.Rc7 Rc7 36.Nc7 Kg6 37.Kf2 Kf6 38.Ke3 Ke7 39.Ne6 Kf6 40.Kd4 Bc8 41.Nc7 Bb7 42.g3 h4 43.gh4 gh4 44.Ne6 Bc8+/– 45.Nf4 Kg5 46.Ke3 Bd7 47.Kf3 Bc8 48.Ne6 Be6 49.de6 Kf6 50.Kg4?? Ke6 51.Kh4 Ke5 52.Kg5 Ke4+= 53.h4 d5 54.h5 d4 55.h6 d3 56.h7 d2 57.h8Q d1Q 58.Qe8 Kf3?? 59.Qh5+– Kf2 60.Qd1 Ke3 61.Qd6 Ke4 62.Kf6 (62.Kf6 Ke3 63.Qb6 Kf3 64.Qc6 Kf2 65.b6 Kg3 66.b7 Kh2 67.b8Q Kh3 68.Qf3 Kh4 69.Qbf4) 1–0. carocan (1735) – virgis (1675), kurnik, 2012.

8.b5 c6

9.a4 Nbd7 10.d4+= Qc7 (10...e4 11.Nfd2+=) 11.Nc3 d5 (11...c5 12.de5 Ne5 13.Nd2+=) 12.cd5 cd5 (12...e4 13.d6! Qd6 14.Ng5+–) 13.h3 (13.Rc1!? Qb8 14.de5 Ne5 15.Ba3+–) 13...Re8 Black prepares the advance e4 (13...e4 14.Nd2+=) 14.Rc1 Qb8 (14...Qd6 15.de5 Ne5 16.Qd4+=) 15.Qb3 (15.de5 Ne5 16.Nb1 Nf3 17.Bf3 Rd8+–) 15...e4+= 16.Nd2 Nb6 17.Ba3 Qd6?? (better 17...Be6+=) 18.Bd6+– 1–0. Marcus – 2215, internet, 2018.

8.b5 Nbd7

9.Nc3 Nc5 10.d4 ed4 11.Nd4 Re8 12.Re1 Nce4 13.Ne4 Ne4 14.Bf3 d5 (14...Qh4!? 15.Qc2 a4=) 15.cd5 Qd5 16.Qc2 c5 17.Nb3 (17.bc6 bc6 18.Red1 Bb7+–) 17...b6 18.Bg7 Kg7 19.a4 Bb7 20.Red1 Qe6 21.Qb2 Kg8 22.Rd3 c4 23.Nd4 Qe5 24.Rdd1 c3 25.Qc2 Rac8 26.Ra3 (26.Rd3 Bd5+=) 26...Qc5 27.Rc1?? (better is 27.Ra2=) 27...Qa3–+ 28.Be4 (28.Qd1 Qa2 29.Be2 Bd5–+) 28...Be4 29.Qd1 c2! (29...c2 30.Qd2 Qb4–+) 0–1. emeryt85 (1645) – inspektorkiko (1760), kurnik, 2012.

9.Nc3 e4 10.Nd4 Nc5 11.d3 ed3 12.Bd3 Ng4 13.Be2 h5 14.Nf3 Be6 15.Na4 Bb2 16.Nb2 Ne5 17.Nd4 (17.Ne5 de5 18.Nd3 Nd3 19.Bd3 f5+=) 17...Qh4 18.Ne6 fe6 19.f4 Ng4 20.Bg4 hg4 21.g3 (21.b6 Rf5 22.g3 Qe7+=) 21...Qf6= 22.Nd3 Qf5 (22...Qc3 23.Nf2 Qc4 24.b6 cb6 25.Qd6+=) 23.Nc5 Qc5 24.Qd4 Rf5 25.Rad1 Raf8 26.Rfe1 (26.b6 Qc6+=) 26...g5 27.Qe4 gf4 28.Qe6 Kg7 29.gf4 R8f6 30.Qd7 Rf7 31.Qe6 R5f6 (31...R7f6 32.Qe7 Rf7 33.Qh4 Rf4 34.Rd5 Rf1 35.Rf1 Rf1 36.Kf1 Qc4 37.Ke1 Qd5 38.Qg4 Kf6 39.Qf4 Qf5 40.Qc4=) 32.Qe4 (better is 32.Qd5 Qd5 33.cd5+/–) 32...Rf4+= 33.Qd4. Moehring,Norbert (1945) – Shapiro,Vladimir (1850), Troisdorf op, 2005.

9.Nc3 Re8 10.Rc1 c6 11.Qc2 Nf8 12.d4 e4 13.Nd2 Bf5 14.Qa4 Qc7 15.Nb3 h5 16.c5 d5 17.b6 Qd7 18.Na5 N8h7 19.Nb5 Rf8 (19...cb5!? 20.Bb5 Qc8+=) 20.Nd6+/– Bg4 21.f3 ef3 22.gf3 Bh3 23.Rf2 Bh6 24.Rc3 Bg5 25.Ra3 Bh4 26.Ndb7 (better is 26.Bd3+=) 26...Qf5-/+ 27.Bf1?? (better is 27.Rg2 Qb1 28.Qd1 Qb2 29.Rb3 Qa2 30.Nc6-/+) 27...Qb1 (better is 27...Bf2 28.Kf2 Ne4 29.Ke2 Bf1 30.Kd1 Qf3 31.Kc1 Be2–+) 28.Qc2 Bf2 29.Qf2 Bf1 30.Qf1 Qb2 31.Rd3 Ng5 32.h4 Ne6 33.Rd1 Ng7 34.Rb1 Qa3 35.Nc6 Qe3 36.Qf2 Qd3 37.Rb3 Qd1 38.Qf1 Qc2 39.Nb4 Qd2 40.Qf2 Qd1 41.Kg2 Rfe8 42.Rb2 Nf5 43.c6 Ra3 44.Rd2 Nh4! 45.Kg3 Rf3 46.Kh4 Re4 47.Kg5 0–1. Reis Luis,Sousa (2225) – Ipsarides,Herodotos (2200), Ciro tt, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 a5 8.b5 Nbd7)

9.Nc3 Re8 10.d3 Nc5 11.Na4 e4 12.Ne1 Na4 13.Qa4 Bf5 14.Rc1 h5 (14...ed3 15.Nd3 Nd7 16.Bg7 Kg7 17.Qd1=) 15.Qc2 (15.d4 Nd7+=) 15...ed3 (15...h4 16.f3 ed3 17.Bd3 Bd3 18.Qd3=) 16.Bd3+= Be6 17.Nf3 Nd7 18.Nd4 Nc5 19.Be2 Qg5 20.Bf3 (20.Ne6 Re6 21.Bg7 Kg7 22.b6+=) 20...Bf5 (better is 20...Bg4!? 21.Bd5 h4=) 21.Nf5+/- Bb2 22.Qb2 Qf5 23.Rcd1 Rab8 (23...Rad8 24.Qd2+=) 24.Qc3 (24.Qd2 b6+/-) 24...b6 25.Bc6 Qe5 26.Qc2 Re6 27.Kh1 (27.a3 Qf6+/-) 27...Kg7 28.Rd5 Qf6 29.Re1 h4 30.h3 Rh8 31.Kg1 Re5 32.Re5 de5 33.Rd1 Rd8 34.Bd5 e4 35.Rd4 Qe5 36.Qd1 Re8 37.Bc6 Re7 38.Qg4 Ne6 39.Rd1 Nc5+/- 40.Qh4 Re6 41.Rd8+- Qa1 42.Kh2 Qe5 43.g3 Qh5 44.Qh5 gh5 45.Bd5 Re7 46.Kg2 Na4 47.Bc6 Re6 48.Rd7 Rd6 49.Rc7 Rd2 50.Be4 Nc5 51.Bd5 Ra2 52.Rf7 Kg6 53.e4 a4 54.e5 a3 55.Ra7 Nd3 (55...Kf5 56.Rh7 Nd3 57.Rh5 Kg6 58.Be4 Kh5 59.Bd3 Rf2 60.Kf2 a2-/+) 1-0. Dzieniszewski,Andrzej (2360) - Hass,Roman (2280), Poland-chT Mikolajki, 1991.

9.d3 Nh5 (9...Nc5 10.Nc3=) 10.Na3 (10.Nc3 Re8=) 10...f5 (10...Nc5!?=+) 11.d4= e4 12.Nd2 Nhf6 13.Nab1 g5 14.h3 c6 (14...Nb6 15.Nc3+=) 15.bc6 bc6 16.Nc3 d5 (16...Rb8 17.Ba3 Nb6 18.c5 dc5 19.Bc5+/-) 17.Qa4 Qb6? (better 17...c5+/-) 18.Ba3+- Re8 (18...Ba6 19.Rab1 Qc7 20.cd5 Be2 21.d6+-) 19.Rab1 Qc7 (19...Qd8 20.Qc6 Ra6 21.Qa4+-) 20.cd5 cd5 21.Rfc1 Nb6 (21...Qa7 22.Nb5 Qa6 23.Bf1+-) 22.Qb5 Ba6 23.Qb6 Qd7 (23...Qb6 24.Rb6 Be2 25.Ne2 Rac8+-) 24.Ba6 Re6 25.Nd5! Rb6 (25...Qd5 26.Bb7 Double attack (26.Bb7 Decoy); 25...Nd5 26.Qb7 Double attack (26.Qb7 Decoy)) 26.Nb6 (26.Rb6 Nd5 27.Rb7 Qd8+-) 26...Qe6 27.Bc4 (27.Bc4 Re8 28.Be6 Re6 29.Nc8+-) 1-0. Pereira – Windings, internet, 2021.

9.d4 ed4 10.ed4 Nb6 11.Re1 Re8 12.Nbd2 Bf5 13.Nf1 Be4 (13...d5 14.c5 Nc4 15.Bc4 Re1 16.Qe1 dc4 17.Ne3+=) 14.N3d2+= d5 15.c5 Nbd7 (15...Nc8 16.Ng3+=) 16.Ng3+/– (worse is 16.Ne4 Ne4 17.Rb1 Qh4=) 16...g5 17.Bg4 (17.Nde4 Ne4 18.Ne4 de4+/–) 17...Bg6 (17...Ng4 18.Nde4 Nh6 19.Nc3 Re1 20.Qe1 Bd4 21.Qd2 Bc5 22.Nd5+/– (22.Qd5?! c6 23.Qd3 Nf6=)) 18.Bf5 Re1 19.Qe1 Ne8 20.Qe3 (20.Rb1!?+/–) 20...Nc5= 21.Ba3 Ne6 22.Be6 fe6 23.Qe6 Bf7 24.Qe3 Qf6 25.Nf3 Nd6 26.Bd6 (worse is 26.Qg5 Qg5 27.Ng5 Nb5–+) 26...cd6 27.Qg5 Qg5 28.Ng5 Bd4 29.Rd1 Bc5 30.Nf7 Kf7 31.Rd5 Ke6 32.Rh5+– Rf8 33.Ne4 b6 34.Ng5 Ke7 35.Rh7 Kf6 36.Ne4 Kg6 37.Re7 Bb4 38.g4 Rf4 39.h3 d5 40.Re6 Kg7 41.Ng3 Rf3 42.Kg2 Ra3 43.Re2 Kf7 44.Nf5 Rd3 45.h4 Rd1 46.Rc2 Bc5 47.Kf3 d4 48.Ke2 Rb1 49.Rd2 Rb5 50.Nd4 Bd4 51.Rd4 Rb2 52.Rd2 Rb4 53.Kf3 a4 54.Kg3 b5 55.f4 Rb1 56.f5 b4 57.Kf4 a3 58.Kg5 Rb2 59.Rd7 Ke8 60.Rb7 1–0. Lanica,Lukasz (1745) – Faron,Rafal (2010), c18, 2014.

9.d4 ed4 10.ed4 Nh5 11.Qc1 Re8 12.Re1 Nf8 13.Na3 Qf6 14.Nc2 Nf4 15.Ne3 Ne2 16.Re2 Qd8 17.d5 Bd7 18.Qd2 h5 19.Rae1 Nh7 20.Bg7 Kg7 21.b6 cb6 22.Qd4 Kg8 23.Rb2 b5 24.cb5 Rc8 25.Rbb1 Rc5 26.a4 Qf6 ½–½. Doda – Jimenez, Siegen 1970.

9.d4 ed4 10.Bd4 Nc5 11.Nbd2 (11.Nc3 Bf5=) 11...Re8 12.Bb2 (12.Nb3 Ne6=) 12...Qe7 13.Re1 (13.Nd4 a4=) 13...b6 (13...Bf5 14.Nd4 Bd3 15.N2f3 Be2 16.Qe2=) 14.Nd4 Bb7 15.Qc2 Nfd7 (15...a4 16.Rad1=) 16.Bf3 Ne5 17.Bb7 Nb7 18.N2f3 Nc5 19.Red1 Nf3 20.Nf3 Bb2 (20...Qe4 21.Qe4 Ne4 22.Bg7 Kg7 23.a3=) 21.Qb2 Qe6 22.Qd4 Qf5 23.Qd5 Qf6 24.Qd4 (24.a3 a4+=) 24…Qf5= ½-½. Panzer,Bernhard - Kirbach,Thomas, Regionalliga NO, 1996.

7.0-0 a6

8.b5 ab5 9.cb5 Nbd7 10.a4 Nc5 11.d4 ed4 12.Nd4 Re8 13.Bf3 Nfe4 14.Nc3 d5 15.Ne4 de4 16.Be2 Qd6 17.Rb1 Na4 18.Ra1 Nb2 19.Qc2 Ra1 20.Ra1 Bd4 21.ed4 Qd4 22.Qc7 Nd3 23.Rd1 Qf2 24.Kh1 Qe2 25.Rg1 Nf2 0–1. axtur777 – Andycool1202, lichess.org, 2019.

8.d3 Be6 9.a3 Nc6 10.Nbd2 Bg4 11.h3 Be6 12.Ng5 Qe7 13.Ne6 Qe6 14.Nf3 d5 Black intends e4 15.cd5 Nd5 16.Rc1 e4 (16...Rfd8+=) 17.Bg7?? (17.Ng5 Qe7 18.Bg7 Kg7 19.Ne4 Rae8+–) 17...Kg7?? (better is 17...ef3!? 18.Bf8 fe2 19.Qe2 Rf8+=) 18.de4 Qe4 19.Bd3 Qe6 20.Bc4 Ne3 21.fe3 (21.fe3 Qe3 22.Rf2 Qa3 23.b5 ab5 24.Bb5+/–) 1–0. Fournier,Frederic (1900) – Alvarosoto (1805), Active (5/2) ajedrez21.com, 2005.

8.d4 Re8 9.de5 Ng4 10.Nc3 (10.Qc2 Ne5 11.Ne5 de5+=) 10...Ne5= 11.Ne5 (11.a3 Nbc6=) 11...Be5+= 12.Qb3 (12.Qd2 a5+=) 12...Be6 (12...a5 13.a3=) 13.f4 (13.Nd5 Nd7+=) 13...Bg7= 14.Ne4 (14.Bf3 c6 15.a4 a5=) 14...Nd7 (14...Bb2 15.Qb2 Nd7 16.Qd4=) 15.Bg7 Kg7 16.Qc3 (16.Bf3 Qe7=) 16...Kg8 17.a4 (17.Bf3 Qe7=) 17...d5 (17...a5 18.Bf3=) 18.Nd2 (18.cd5 Bd5 19.Ng3 c6=) 18...c6 (18...Qf6 19.Rac1=) 19.a5 (19.Rad1 Qf6 20.Rc1 Qc3 21.Rc3 Nf6=+) 19...b6 (better 19...Qf6!? 20.Rac1 Rad8=) 20.ab6 Qb6 21.c5 Qb7 22.Ra5 (22.e4 Ra7+–) 22...Reb8+= 23.Rb1 Bf5 24.Rb2 Qc7 (24...Re8 25.Rba2+=) 25.Ba6 (25.Rba2 Qd8+–) 25...Re8 (25...Qd8 26.Rba2+–) 26.Rba2 Rad8 (26...Re6 27.Qd4+–) 27.b5+– cb5 (27...Nb8 28.b6 Qe7 29.R2a3+–) 28.Bb5 Re7 (28...Rb8+–) 29.Ra7 Qb8 30.Bc6 (better 30.R2a5 d4 31.ed4 Qf4+–) 30...Ree8? (better 30...Rde8 31.Qa5 Re3 32.Bd7 Re1 33.Kf2 R8e2 34.Kg3 Rg1 35.Bf5 Rgg2 36.Kh3 Rh2 37.Kg3 Re3 38.Nf3 Rf3 39.Kf3 Qb3 40.Qc3 Qc3 41.Bd3 Qd3 42.Kg4 Qf5 43.Kf3 Qh3) 31.Bd5 Be6 32.Be6 fe6 (32...Re6 33.c6 Rc8 34.cd7 Rc3 35.Ra8+–) 33.c6 Re7 (33...Qd6 34.cd7 Rf8+–) 34.c7 (34.c7 Qb6 35.cd8R Qd8 36.Ra8+–) 1–0. DEFFM – GuestLSWW, freechess.org, 2018.

8.Nc3 Be6

9.d4 ed4 10.Nd4 (worse 10.Qd4 Nc6 11.Qd2 Nb4=+) 10...Qd7 (10...Bd7 11.b5=) 11.Ne6+– fe6 12.Qb3 White intends b5 12...Nc6 13.f4 Kh8 14.a4 White prepares b5 14...Rae8 (14...a5 15.b5 Nb4 16.Bf3+–) 15.Bf3 e5 16.b5 ab5 17.ab5 Nd8 18.fe5 de5 19.Rad1 Qf5? (better 19...Qc8!?+–) 20.Ba3 Rf7 21.Bd5 Qg5 22.Ne4 Ne4 23.Bf7 (23.Rf7?! Nf7 24.Be4 Bh6+–; 23.Be4?! Bh6 24.Bc1 Rf1 25.Rf1 Ne6+–) 23...Nf7 24.Rf7 Bh6 25.Bc1 Nd6 (25...Rf8 26.Rf8 Bf8+–) 26.Rc7 Ne4 (26...Qf6 27.Qd3 Bf8 28.Rd7+–) 27.c5 Rf8 (27...Qg4 28.Rf1 Ng5 29.Qd5+–) 28.Rdd7 Nf6 29.Rf7 Qh5 (29...Qh4 30.Bd2 Ra8+–) 30.Rf8 (30.Rb7?! Qe2 31.Rf8 Bf8=) 30...Bf8 31.h3 Bh6 32.Qe6 Qd1 33.Kh2 Bg7 34.Rc8 Ng8 (34...Qd8 35.Rd8 Bf8 36.Qf6 Kg8 37.Rf8) 35.Rg8 (35.Qg8?!=) 1–0. Pierre – Mannaher, internet, 2020.

8.d4 e4

9.Nfd2 c6 10.Nc3 d5 11.c5 Nbd7 12.f3 ef3 13.Nf3 b6 14.a3 bc5 15.bc5 Ne4 16.Rb1 Ndf6 17.Qa4 Qc7 18.Ne4 Ne4 19.Bd3 Bg4 20.Be4 (20.Ba6? Bc8 21.Qc2 Ba6–+) 20…de4 0–1. gocrazy – cmulligan (2160), net–chess.com, 2011.

9.Nfd2 c6 10.Nc3 d5 11.cd5 cd5 12.h3 Be6 13.f3 (13.Rc1 Nfd7=) 13...ef3 14.Bf3 (14.Rf3 Nbd7=) 14...Qd6 15.b5 (15.Qb3 Nc6+=) 15...Nbd7 (15...Bh6 16.Re1 ab5 17.Nb5 Qb6=) 16.e4 (better is 16.Qb3 Rfc8 17.Ba3=) 16...Qg3?? (16...de4!? 17.Nde4 Qb4-/+) 17.Qe1?? (better is 17.e5 Ne5 18.de5 Qe5 19.ba6 ba6 20.Rf2+/–) 17...Ne4-/+ 18.Nce4 Qe1 19.Rfe1 de4 20.Be4 Rab8 21.a4 Nf6 22.Bf3 Bd5 23.Bd5 Nd5 24.Nf3 f6 25.Rac1 Rbc8 26.Rc5 Nf4 27.Rc8 Rc8 28.Kf1 Kf7 29.Rd1 Nd5+= 30.Kf2 Bh6 31.Ne1 Rc4 32.ba6 ba6 33.Rd3 Ra4 34.Rb3 Rb4 35.Rb4 Nb4 36.Ba3 Nd5 37.Kf3 Bf8 38.Bb2 a5 39.Nd3 Bb4 40.Nc5 Bc5 41.dc5 a4 42.Ke4 Ke6 43.Kd4 Nb4 44.Kc4+= Nc6 45.Kb5 Kd5 46.Ka4 Kc5 47.Bf6 ½–½. Melzig,Ernst – Beyer,Hans Wilfried, Bad Sooden Allendorf Seniors op, 2002.

9.Nfd2 Nc6 10.b5 ab5 11.cb5 Nb4 12.a3 Nbd5 13.Qc2 Bd7 (better is 13...Re8!?=) 14.Ne4+/– Bf5 15.Bd3 Ng4 16.Ng3 (16.Rc1 Re8 17.Nbd2 Qe7+/–) 16...Bd7 (better is 16...Qh4!? 17.h3 Bd3 18.Qd3 Nge3 19.fe3 Qg3=) 17.Re1 Qh4 18.Nd2?? (better is 18.Nf1+/–) 18...Qh2–+ (worse is 18...Nh2 19.Be4 c6 20.Nc4+=) 19.Kf1 Nge3! 20.fe3 Qg3 21.Nf3 Bg4 22.Qf2 Qf2 23.Kf2 Rfe8 24.Bc4 Nb6 25.Bb3 d5 26.Rac1 Re7 27.Kg3 Bf3 28.Kf3 Bh6 29.Rc2 Rae8 30.Rce2 c6 31.a4 cb5-/+ 32.ab5 Nd7?? 33.Ba3+/– Nf6 34.Be7 Re7 35.e4 de4= 36.Re4 Ne4 37.Re4 Rd7 38.d5 Kg7 39.g4 Kf6 40.Ke2 Bg5 41.Kd3 Rc7 42.d6 Rc3?? 43.Kc3+– Kg7 44.d7 Kf8 45.Re8 Kg7 46.d8Q Bd8 47.Rd8 h5 48.gh5 gh5 49.Bf7! Kf7 50.Rd7 Kf6 51.Rb7 (51.Rb7 h4 52.b6 Kf5 53.Rf7 Ke6 54.Rh7 Kf5 55.b7 Kg6 56.Rh4 Kg7 57.b8Q Kf7 58.Qf4 Ke7 59.Rh6 Kd8 60.Rh7 Ke8 61.Qb8) 1–0. elsh1403 – zenusll, kurnik, 2011.

7.0-0 b6

8.a4 Bb7 9.b5 Nbd7 10.d3 Re8 11.e4 Nc5 12.Nbd2 Nfd7 13.h3 f5 14.ef5 gf5 15.Nh2 Qg5 16.Ndf3 Qg6 17.Kh1 Re7 18.d4 Ne4 19.d5 Ndc5 20.Nd2 Kh8 21.Ne4 Ne4 22.Bd3 Bf6 23.Qe2 Rg8 24.Rg1 Nc5 25.Bc2 Reg7 26.f3 Qh5 27.Nf1 f4 28.Nd2 Bc8 29.Kh2 Rg3 30.Ne4 Ne4 31.Be4 Bh3 32.gh3 Qh3 0–1. Abdullaevich (1925) – ayobamz (1980), lichess.org, 2020.

8.Qb3 Nc6 9.a4 a5 10.b5 Ne7 11.Ng5 h6 12.Nf3 Be6 13.d4 e4 14.Nfd2 d5 15.c5 bc5 16.dc5 c6 17.b6 Nd7 18.Bg7 Kg7 19.Na3 Nc5 20.Qc3 Kg8 21.Qc5 Rb8 22.Rab1 Rb7 23.Qa5 Nf5 24.Qc5 Bd7 25.a5 Nh4 26.a6 Qg5 27.g3 Bh3 28.ab7 Nf3 29.Nf3 ef3 30.Qf8 Kf8 31.b8Q Kg7 32.Bf3 h5 33.Qf4 Qf4 34.ef4 Bf1 35.Kf1 1–0. Adjailton (1850) – Marat201878 (1780), lichess.org, 2019.

8.b5 a6 9.d4=.

8.Qc2 Bb7 9.b5 Nbd7 (9...Re8 10.d4 ed4 11.Nd4=) 10.d4 e4 (10...a6 11.de5 de5 12.Rd1=) 11.Nfd2+= d5 (11...Qe7!?+=) 12.Nc3+– c6 (12...dc4 13.Bc4 Qe7 14.a4+–) 13.bc6 Bc6 14.cd5 Bd5 (14...Nd5 15.Nce4 Rc8 16.Ba3+–) 15.Nd5+– Nd5 16.Ne4 (16.Qe4 N7f6 17.Qf3 Rc8+–) 16...N7f6 17.Nf6 (17.Rac1 Re8 18.Nf6 Qf6+–) 17...Nf6 (17...Qf6 18.Rac1+–) 18.Rac1 Qd5 (18...Re8 19.Bf3 Rc8 20.Qa4+–) 19.Bf3 Rac8?? (19...Qa2 20.Ba8 Ra8+–) 20.Qc8 Qa2 21.Qc3 Nd5 (21...a5 22.Rfd1+–) 22.Qa3 Nc3 (22...Qa3 23.Ba3 Ne3 24.fe3+–) 23.Qc3 1–0. GuestZMZH – GuestRWWH, freechess.org, 2018.

8.h3 Bb7 9.b5 Nbd7 10.a4 a6 11.Nh2 ab5 12.cb5 Nc5 13.d4 ed4 14.Bd4 Ne6 15.Bb2 Qe7 16.Nd2 Nc5 17.Qc2 Nfe4 18.Bg7 Kg7 19.Qe4 Ne4 0–1. Abdullaevich (1875) – raslen (1910), lichess.org, 2020.

8.b5 Bb7

9.a4 a5 10.d3 Nbd7 11.Nfd2 d5 12.Nc3 dc4 13.dc4 Nc5 14.Qc2 e4 15.Rad1 Qe7 16.Nb3 Nb3 17.Qb3 Rad8 18.Nd5 Nd5 19.cd5 Bb2 20.Qb2 Qb4 21.Qa2 Qc5 22.Bc4 Rd6 23.Rd4 Rfd8 24.Rfd1 f5 25.h3 Kg7 26.g3 Kf6 27.h4 Ke5 28.Rc1 Bd5 29.Qb2 Qb4 30.Rd5 Ke6 31.Rd6 Kd6 32.Rd1 Kc5 33.Qe5 Kc4 34.Rd8 Qe1 35.Kg2 Qe2 36.Qd4 Kb3 37.Rd7 Qf3 38.Kg1 Qe2 39.Rc7 1–0. Orang4Utan (1885) – neroeto (1885), lichess.org, 2018.

9.a4 a5 10.d4 e4 11.Nfd2 Nbd7+=.

9.a4 a5 10.h3 Na6 11.Nc3 Nb4 12.d4 ed4 13.ed4 Re8 14.d5 Qd7 15.Nd4 Re7 16.Bf3 Rae8 17.Qd2 Nh5 18.Bh5 gh5 19.Nf3 Qf5 20.Rfe1 Nd3 21.Re7 Re7 22.Nd1 Nb2 23.Nb2 Bc8 24.Re1 Re1 25.Ne1 Qg6 26.Nbd3 Bh3 27.Nf4 Qg5 28.Nf3 Bc3 29.Ng5 Bd2 30.Ngh3 1–0. Abdullaevich (1830) – Bobbysocks (1845), lichess.org, 2020.

9.a4 a5 10.h3 Nbd7 11.Nc3 Nc5 (11...Rc8 12.d4=) 12.d4+= Nce4 13.de5 de5 (13...Nc3 14.Bc3 Nd7 15.Qc2 Ne5 16.Be5 de5 17.c5=) 14.Ne5 (14.Ne4 Ne4 15.Be5 Be5 16.Ne5 Re8+=) 14...Nc3 15.Bc3 Ne4 16.Bd4 Re8 17.Nf3 Bd4 18.Qd4 (18.ed4?? Nc3 19.Qd3 Ne2 20.Kh1 Bf3 21.Qf3 Qd4–+; 18.Nd4?! Qf6+–) 18...Qe7 19.Qb2 Ng5 20.Nd4 (20.Qa3 Qa3 21.Ra3 Bf3 22.Bf3 Nf3 23.gf3 Rad8+–) 20...Qe4 Threatening mate... how? 21.Bf3 Nf3 22.Nf3 Rad8 (22...Qc4 23.Rfc1 Qe6 24.Rc7 Bf3 25.gf3 Qh3 26.Qf6+=) 23.Rfd1 (23.c5 bc5 24.Rfc1 Rd5+–) 23...Qf5 (23...Qc4!? 24.Rd4 Qe6 25.Rd8 Rd8=) 24.Ne1 Qg5 25.Rd4 (25.Qe2 Be4+–) 25...Rd4+= 26.Qd4 Rd8 27.Qg4 (27.Qc3 Qh5+–) 27...Qe5 (27...Qg4!? 28.hg4 h6+=) 28.Rd1+– Rd1 29.Qd1 Qd6 30.Qd6 (30.Qd4 h6+–) 30...cd6 31.f3 Kf8 (31...f5 32.Nd3+–) 32.e4 Ke7 33.Kf2 f5 34.ef5 gf5 35.Ke3 (35.Nd3 Ke6+–) 35...Kf6 (35...d5!?+–) 36.Nd3+– d5? (36...Ba8 37.h4 Bb7 38.Kd4+–) 37.Kd4 (better 37.c5 bc5 38.Nc5+–) 37...dc4 38.Kc4 Ke6 39.Kd4 h6 (39...Kd6 40.Ne5+–) 40.Nb2 (40.Ne5 Bd5 41.Nd7 Bb3 42.Nb6 Bd1+–) 40...Bd5 41.Nc4 Bc4 42.Kc4 f4 (42...Ke5 43.g4 fg4 44.fg4 Ke6+–) 43.Kd4 Kf5 (43...Kd6 44.h4 h5 45.Ke4+–) 44.Kd5 Kg5 45.Kc6 Kh4 46.Kb6 Kg3 47.Ka5 Kg2 48.b6 Kf3 49.b7 Kg2 50.b8Q f3 51.Qg8 (better 51.Qf4 h5 52.Qe4 Kg3+–) 51...Kh2 (51...Kh3 52.Qe6 Kg3 53.Qg6 Kf2 54.Kb4+–) 52.Qh7 (52.Qf8!? Kg2 53.Qh6 f2 54.Qc6 Kg1 55.Qc1 Kg2+–) 52...f2 53.Qf5 f1Q (53...Kg2 54.Qe4 Kg3 55.Qg4 Kh2+–) 54.Qf1 h5 55.Kb5 h4 (55...Kg3 56.a5 Kh4 57.Qf4 Kh3 58.a6 Kg2 59.a7 Kg1 60.a8Q h4 61.Qa1 Kg2 62.Qaf1) 56.a5 Kg3 57.a6 (57.a6 Kh2 58.a7 Kg3 59.a8Q Kh2 60.Qfg2) 1–0. RichardSommer (2105) – HabakkukAbiel (2075), lichess.org, 2020.

9.a4 e4 10.Ne1=.

9.d4 ed4 10.Nd4 c5+=.

9.h3 Nbd7 10.Qc2 Nc5 11.d4 Be4 12.Qd2 ed4 13.ed4 Ne6 14.d5 Nc5 15.Bd4 Nfd7 16.Bg7 Kg7 17.Nd4 Qf6 18.Nc3 Rae8 19.Bf3 Bf3 20.Nf3 Ne5 21.Ne5 Re5 22.Rfe1 Rfe8 23.Re5 Re5 24.Re1 Re1 25.Qe1 Nd3 26.Qe3 Nf2 27.Ne2 Nd1 28.Qd2 Qf2 29.Kh2 Ne3 30.Qd4 f6 31.Nf4 g5 32.Ne6 Kf7 33.Qe4 Nf1 34.Kh1 Ng3 0–1. Abdullaevich (1900) – Wolf1219 (1845), lichess.org, 2020.

8.Nc3 Bb7

9.Qc2 Nc6 10.b5 Ne7 11.Rac1 Nd7 12.d4 ed4 13.ed4 c6 (13...a6!?=) 14.bc6 Nc6 15.d5 (15.Nb5!? Nf6 16.Ba3+/–) 15...Nce5 16.Nb5 Nf3 17.Bf3 Ne5 18.Be2 a6 19.Nd4 Rc8 20.Qb3 Re8 21.f4 Nd7 22.Bg4 Nc5 23.Qh3? (23.Qg3 Rc7 24.Rc2-/+) 23...Bd4?? (better is 23...f5 24.Bd1 b5–+) 24.Bd4+– Rc7 25.f5 Re4 26.fg6 fg6 27.Bc5 bc5 28.Be6 Kg7 29.Qc3 Re5?? 30.Rce1 Qg5 31.Re5 de5 32.Re1 Kf6 33.Qa5 Re7 34.Qc5 Kg7 35.Bh3 Qd2 1–0. Donadon,Ivan – Barahona,Miguel (1815), Buenos Aires ARG, 4th Duchamp Open, 2012.

9.d3 a5 10.b5 Nbd7 11.d4 e4 12.Nd2 Qe7 13.d5 (13.Qc2 h6+=) 13...Nc5 14.Na4 Ncd7 15.Nb3 Kh8 16.Nd4 Rae8 17.Nc6 Bc6 18.bc6 Ne5 19.Rc1 Ng8 20.Nc3 f5 21.Nb5 Nf6 22.Be5+/– de5 23.f4?? ef4+= 24.Rf4 Rc8 25.Qc2? Bh6-/+ 26.g3 Qc5 27.Qc3-/+ Bf4 28.gf4 Kg8 29.Rd1 Ne8 30.Rd4 Nd6–+ 31.Nd6 Qd6 32.h4 h6 33.Kf2 Kf7 34.Rd1 g5 35.hg5 hg5 36.Bh5 Kg8-/+ 37.Rg1 g4 38.Rh1? Qf6–+ 39.Qa3 Kg7 40.c5 bc5 41.Qc5 Rh8 42.Qa5-/+ Qb2 43.Kg3+= Kf8?? 44.Qc5+– Kg7 45.Qe7 Kh6 46.Bg4 Kg6 47.Qe6 Qf6+– 48.Rh8 Qe6 49.de6 Rh8+= 50.Be2 Kf6-/+ 51.Bc4 Rg8 52.Kf2+= Ke7 53.Ke2 Rg2 54.Kd1 Kd6 55.Kc1 Rg3 56.Kd2 Rg2 57.Kc3 Ke7 58.Kd4 Rd2 59.Ke5+= Rc2 60.Bb3 Rc3? 61.Kf5+– Re3 62.Ke5?? Re1 63.f5+– Rf1 64.Bc4 e3?? 65.Bf1 Kd8 66.f6 Ke8 67.Bc4 Kf8 68.e7 Ke8 69.Ke6 (69.Ke6 e2 70.f7) 1–0. orangutanb4 (1985) – antique (1935), kurnik, 2011.

9.d4 Nbd7 10.de5 Ne5 11.Ne5 de5 12.Qd8 Rad8 13.Rfd1 Rfe8? (better is 13...a6!?=) 14.Nb5+/– c6 (better is 14...Rd7!?+/–) 15.Nd6+– (15.Na7 Ra8 16.Nc6 Bc6+=) 15...Re7 16.Nb7 Rd1 17.Rd1 Rb7 18.Rd8 Bf8 19.Be5 Nd7 20.Bc3 (20.Bf4!? f6 21.b5 Ne5+–) 20...f6 21.Bg4 f5?? (better is 21...Ne5 22.Be6 Kg7+–) 22.Bf3 Rc7 23.a3 (better is 23.b5 Nc5 24.Be5+–) 23...Kf7 24.Kf1 Ke7 25.Ra8 c5 26.b5 Kf7 27.Bd5 Ke7 28.Ke2 Bh6 29.g3 Nf6 30.Bc6 Ne4? 31.Be5 Nd6 32.Rh8 Ke6 33.Bd5 Ke5-/+ 34.f4 Kf6 35.Kf3 Bg7 36.Rh7-/+ Nf7 37.h3 Re7 38.g4 fg4 39.hg4 Nd6?? 40.g5+/– Kf5 41.e4 Ne4-/+ 42.Be4 Re4 43.Rg7 Rf4 44.Ke3 (44.Ke3 Rc4 45.Ra7-/+). komorowwskij (1735) – cosmopolita, kurnik, 2012.

8.d3 Bb7

9.a4 c5 10.b5 a6 11.Nc3 ab5 12.ab5 Nbd7 13.Nd2 Re8 14.Bf3 Bf3 15.Qf3 (15.gf3?! Ra1 16.Qa1 Nb8=) 15...Nh5 16.Nde4 Nb8?? (better is 16...Ra1 17.Ra1 Qb8+/–) 17.Ra8+– Qd7 18.Nd5 Qb7 (18...f5 19.Nec3 e4 20.de4 fe4+–) 19.Rfa1 Kf8 (19...Qd7 20.R1a7 Qe6 21.Nc7+–) 20.R1a7 Qc8 21.Qf7 1–0. hal1958 – sonnyspock, playchess.de, 2003.

9.Nbd2 Nc6 10.b5 Ne7 11.a4 c6 12.Rc1 cb5 13.cb5 Rc8 14.Rc8 Qc8 15.Ba3 Rd8 16.Ne5 de5 17.Be7 Re8 18.Bf6 Bf6 19.Qb3 Qa8 20.Bf3 Bf3 21.Nf3 e4 22.de4 Re4 23.h3 h5 24.Rd1 a6 (24...Qe8 25.Qc2+–) 25.Rd7 (25.Rd6 Kg7 26.Nd2 Re7+–) 25...Re6 26.Qd3 Kg7? (better is 26...ab5 27.ab5 Qa1 28.Qf1 Qf1 29.Kf1 Kg7+/–) 27.ba6+– Be5 (27...Rc6+–) 28.Ne5 Re5 29.Qd4 Qe8 (29...Qe4 30.Qc3 Kh6 31.Rf7 Qd5+–) 30.a7 Kf8 31.Rd8 (31.Rd8 Qd8 32.Qd8 Re8 33.a8Q Rd8 34.Qd8 Kg7 35.Qb6+–) 1–0. Cornacchini,Gabriele – Sonnyspock, playchess.de, 2002.

9.Nbd2 Nbd7 10.Rb1 d5 (10...Qe7 11.d4=) 11.cd5 (11.Ne5 Re8 12.Nd7 Qd7+–) 11...Bd5 (11...Nd5 12.a3=) 12.Be5 (12.Ne5 a5 13.b5 Ne5 14.Be5 Ba2+–) 12...Ne5 (12...a5 13.a3+=) 13.Ne5 Ba2 14.Rc1 Qd6 15.Nc6 Bd5 16.Bf3 Bc6 17.Bc6 (17.Rc6 Qd3 18.Rc7 Nd5=) 17...Rad8 18.b5 Qd3 19.Rc2 (19.Nc4!?+=) 19...Nd5=+ 20.Nf3 Nc3 The isolani on b5 becomes a target (20...Qd1!? 21.Rd1 Nb4=+) 21.Qd3= Rd3 22.Ne1 (22.e4 Rfd8=) 22...Rd1 (22...Rd6!? 23.Nf3 a6-/+) 23.Nf3=+ Rf1 (23...Rfd8 24.g4=+) 24.Kf1= Rd8 25.g3 (25.Nd4 Nd5=) 25...h5 (better 25...Rd1!? 26.Kg2 Rb1-/+) 26.Nd4= Na4 (26...Nd5 27.Rc4=) 27.Nf3 (27.Ra2!? Nc5 28.Ra7 Bd4 29.ed4 Rd4 30.Rc7+=) 27...Nc5 28.Ra2 Bf8 (better 28...Rd1!? 29.Ke2 Ra1 30.Ra1 Ba1=) 29.Ra7+– Bd6 30.Nd4 (30.Ke2 Kg7+=) 30...Kg7 (30...Be5 31.h3+=) 31.Bg2 Kf6 32.Nc6 Rd7 33.Bh3 (33.f4 g5+–) 33...Ne6 34.Nb8 (34.f4 g5+–) 34...Rd8+= 35.Nc6 (35.Be6 Rb8 36.Bd5 Rd8+=) 35...Rf8 (35...Rd7!?=) 36.Ke2 (36.Bg2 Nd8+–) 36...g5 37.Bg2 h4 38.Kd3 (38.Bf3 Rh8+=) 38...hg3 39.hg3 Rh8 40.Nd4 (better 40.Bd5!?+=) 40...Rh2=+ 41.Be4?? (better 41.Ne6!? Ke6 42.Bc6=+) 41...Rf2 (better 41...Nc5 42.Kc4 Ne4 43.f4–+) 42.Nf5?? (better 42.Ne6 fe6 43.g4-/+) 42...Rf5 (better 42...Nc5!? 43.Kc4 Ne4 44.Nd4–+) 43.Bf5 Kf5 44.Ra4 (44.Kc4–+) 44…Nc5 (44...Nc5 45.Kd4 Na4 46.e4 Ke6–+) 0–1. aravind555 (1810) – Rosada_1 (1785), lichess.org, 2020.

9.Nbd2 Nbd7 10.Bc3 Qe7 11.h3 Bh6 (11...Rfd8 12.Rb1=+) 12.a4 e4 13.de4 Ne4 (13...Bg7 14.a5=) 14.Ne4+= Be4 15.Qd4 f6 16.Nd2 Bb7 17.Bf3 c5 (17...Bf3 18.Nf3 Ne5 19.Ne5 de5 20.Qd5 Kg7 21.Rfd1+=) 18.Bd5 Kh8 (18...Bd5 19.Qd5 Qf7 20.Ne4+–) 19.Qe4+– Qe4 20.Ne4 Bd5 21.cd5 cb4 22.Bb4 Nc5 23.Nd6 Rad8 24.Bc5 bc5 25.Nb5 Rd5 26.Na7 f5 27.Rfc1 Ra8 28.Nb5 Bg7? (better 28...Ra5!?+–) 29.Nc7+– Ba1 30.Na8 (30.Nd5?! Ra4 31.Rc5 Ra7+–) 30...Be5 31.Nb6 Rd2? (better 31...Rd8 32.a5 Bc7+–) 32.Nc4 Rd5 33.a5 Bb8 (33...Bc7 34.a6 Rd8 35.Rb1+–) 34.Rb1 (34.Rb1 Rd8 35.a6+–) 1–0. Dalia – Magadan, internet, 2019.

8.d4 ed4

9.ed4 Bb7 10.Nc3 Nbd7 11.Qb3 Re8 12.Rfe1 Ne4 13.Rac1 Nc3 14.Bc3?? (14.Qc3 c5+=) 14...Nf6?? (better is 14...Re2 15.Re2 Bf3-/+) 15.c5 dc5 16.dc5 Bd5 17.Qb2 bc5 18.bc5 c6 19.Rcd1 Rb8 20.Qa1 Re6? 21.Nd4+– Re2 22.Re2 Ne4 23.Nc6 Bc3+= 24.Nd8 Ba1 25.f3 Rd8?? 26.Re4 Be4?? 27.Rd8+– Kg7 28.fe4 Kf6 29.c6 Be5 30.Rd7 Ke6 31.Ra7 Bd4–+ 32.Kf1 Ba7 33.c7 Kd7 34.Ke2 Kc7 35.Kf3 Kd6 36.Kf4 f6 37.g4 h6 38.h4 White prepares g5 38...Ke6 39.g5 fg5 40.hg5 h5 41.a4 Bb6 42.Kf3 Ke5. elsh1403 – torkarb, kurnik, 2011.

9.ed4 Bb7 10.Nc3 Re8 11.Re1 Nbd7 12.b5 d5 13.Qb3 a6 14.a4 ab5 15.ab5 Ra1 16.Ba1 dc4 17.Qc4 Bf3 18.gf3 Nh5 19.Ne4 Ndf6 20.Bd3 Nf4 21.Bc3 Ne4 (22.Re4 Qg5 23.Kf1 Rd8-/+) 0–1. Ruhle,Ernst Albrecht (1630) – Windhofer,Johann (1855), Graz Schwarzach op–B, 1998.

9.ed4 Bb7 10.d5 Nbd7 11.Nc3 Ne4 12.Qc2 Qe7 13.Rab1 Nc3+= 14.Bc3 Rfe8 15.Bd3 Ne5 16.Ne5 Be5 17.Rfe1 Qf6 18.Be5 Re5 19.Re5 Qe5 20.Qb2 Re8 21.Qe5 Re5 22.Kf1 f5 23.Re1 Re1 24.Ke1 Kf7 ½–½. Sellmer,Dirk – Martensen,Olaf, Schleswig Holstein–ch, 1992.

9.Nd4 a5 10.b5 Bb7 11.Bf3 Ne4 12.Nc3 f5? (12...Re8 13.Ne4 Be4 14.Be4 Re4 15.Qf3+=) 13.Nd5 (better is 13.Ne6!? Qe7 14.Ng7 (14.Nf8?! Bc3 15.Bc3 Nc3=) 14...Qg7 15.Rb1+–) 13...Bd5 14.cd5 Qe7 15.Qc2 Re8 16.Rac1 Ra7 17.Ne6 Bb2 18.Qb2 Nc5 19.Rc5 (better is 19.Nc5 bc5 20.Qc2+/–) 19...bc5+= 20.a4 Nd7 21.h4 Ne5 22.h5 Nf3 23.gf3 Raa8 24.hg6= hg6 25.Kg2 Rf8 26.Rh1 Rf6 27.Nc7 Re8?? 28.Ne6 Qf7 29.f4 Ree6 (29...Ree6 30.de6 Qg7+–). nizinna – 01spartan, kurnik, 2011.

9.Nd4 Bb7 10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Nbd7 14.Nd2 Nc5 15.N2b3 (15.Bf3 Nfe4 16.Ne4 Ne4+=) 15...Nfe4 16.Bf3 Qg5 17.Qc2 Re8 18.Nc5 bc5 19.Nc6 Ba1 20.Ra1 Bc6 21.bc6 Qe5 22.Ra7 Ng5 23.Bd5 Re7 24.h3 Kg7+= 25.Qc1 Ne4 26.Qa1 Qa1= 27.Ra1 Nc3 28.Bf3 f5 29.Ra8 Ne4 30.Rd8 Kf7 31.Rh8 h5 32.h4 Kf6 33.Rd8 Ke6 34.Be4 fe4 35.f4 Kf5 36.Kf2 Ke6 37.g4+/– hg4 38.Kg3 Kf5 39.Rd7 Ke6 40.Re7?? Ke7–+ 41.Kg4 Kf6?? 42.h5+– gh5 43.Kh5 Kf5 44.Kh6?? Kf6= 45.Kh5 Kf5 46.Kh4 Kg6 47.Kg4 Kf6 48.f5 Ke5 49.Kg5 d5 50.f6 dc4 51.f7 c3 52.f8Q c2 53.Qc5 (53.Qc5 Ke6 54.Qc2 Ke5 55.Qc5 Ke6 56.Qd4 Ke7 57.Qd7 Kf8 58.Kf6 Kg8 59.Qg7#) 1–0. carocan (1695) – gayboylt (1710), kurnik, 2012.

9.Nd4 Bb7 10.Bf3 Bf3 11.Nf3 (worse is 11.gf3 c5 12.Nc2 d5+=) 11...Nc6 12.a3 Ne7 13.Nc3 h6 14.Nb5 a6 15.Nbd4 c5 16.Nc2 Qc7 17.Qe2 Rfd8 18.Rad1 d5 19.cd5 Ned5 20.bc5 bc5 21.Be5 Qc6 22.Qc4 Nb6 23.Qc3 Na4 24.Qa1 Ne8 25.Bg7 Ng7 26.Qe5 Ne6 27.Qf6 Qe4 28.Ne5+= Ra7?? 29.Rd8+– Nd8 30.Qd8 Kg7 31.Qb8 Re7+/– 32.Nc6 Qc6 33.h3 c4 34.Nd4 Qb6 35.Qb6 Nb6 36.Rc1 Rc7 37.Kf1 c3 38.Ke2 Na4 39.Kd3 Nb2 40.Ke2 Nc4?? 41.g4 (41.g4 Na3 42.Kd3+=). vihavald (1770) – 10simon, kurnik, 2011.

7.0-0 c5

8.b5 a6

9.a4 e4+= 10.Ng5 h6 11.Nh3 Bh3 12.gh3 Nbd7 13.d3 Re8 14.de4 (better is 14.Nc3!?+=) 14...Ne4–+ 15.Bg7 Kg7 16.f3 (16.ba6 Ra6 17.Nd2 Nc3–+) 16...Qg5 17.Kh1 Nef6 18.Rg1? (better is 18.e4 ab5 19.cb5-/+) 18...Qe3 19.Re1 (19.Rg2 Nh5 20.Ra3 Qe5–+) 19...ab5 20.cb5 (20.Na3 Ra4 21.Nb5 Ra1 22.Qa1 Ne5 23.Nd6 Re6–+) 20...c4! 21.Na3 d5 22.Bf1 Qe1 23.Qe1 Re1 24.Re1 Ra4 25.Nc2 Ra2 26.Nd4 Rd2 27.Ne2 Ne5 28.Bg2 Nd3 29.Ra1 Re2 30.Bf1 Re1 31.Re1 Ne1 32.Kg1 c3 (32...c3 33.Bd3 Nd3–+) 0–1. Neumann,Frank (1650) – SC (2020), RSX16D, 2007.

9.ba6 Ra6 10.Nc3=.

9.Nc3 e4 10.Ng5 h6+=.

8.b5 b6

9.d3 a6 10.a4 ab5 11.cb5 Bb7 12.Nbd2 Nd5 13.Qb3 Nb4 14.Ng5?? (14.e4 Qe7+=) 14...h6 (better is 14...Qg5 15.Bf3 Bf3 16.Nf3 Qg4–+) 15.Nge4 Kh7 16.Nc4 Bd5 17.Qc3 Bc4 18.Qc4?? d5–+ 19.Qb3 de4 20.de4 Qd2 21.Rfe1 Qc2 22.Bc4 Qb3 23.Bb3 Nd3 24.Re2 Nb2 25.Rb2 Nd7 26.Rd1 Nf6 27.Rbd2 Ne4 28.Rd7 Rac8 29.Bf7 c4 30.Rc1 c3 31.Bd5 Nf2 32.Bc6 e4 33.Rb7 Nd3 34.Rc2? Nb4 35.Rc1?? Nc6 36.bc6 Rc6 37.g3 c2 38.Re7 Rd8 39.Kg2 Rd1 40.Rc2 Rc2 41.Kh3 Rdd2 42.Kg4 h5 43.Kf4 Rf2 44.Ke4 Rc4 45.Kd3 Ra4 46.Rb7 Rh2 47.Rb6 Rh3 48.Rc6 Rg3 49.Rc2 Ra3 50.Kd2 Rg2 51.Kd1 Ra1 52.Rc1 Rg1 53.Kd2 Rgc1 54.Kd3 Ra3 55.Ke4 Re3! 56.Ke3 ½–½. elsh1403 – nektaryna13, kurnik, 2011.

9.d4 ed4 10.ed4 Ne4 11.Nbd2 cd4? (11...d5 12.cd5 Nd2 13.Qd2 Qd5 14.Ne5 cd4 15.f4+/–) 12.Bd4 (better is 12.Ne4 d3 13.Bg7 de2 14.Qd4 (14.Qe2?! Kg7 15.Rad1 d5+–) 14...ef1R 15.Rf1+–) 12...Bd4 13.Nd4 Bb7 (13...Nc3 14.Qb3 Ne2 15.Ne2+=) 14.f4 (14.Ne4!? Be4 15.Bf3 Bf3 16.Qf3+/– (worse is 16.gf3 d5+=)) 14...Nc3+= 15.Qe1 Bg2? (15...Re8 16.Qf2=) 16.Rf2?? (better is 16.Kg2!? Re8 17.Qf2 Ne2 18.Ne2+–) 16...Bh3?? 17.Rf3?? Bg4?? 18.Rc3+– Be2 19.Qe2 d5 20.Qg2 Nd7 21.cd5 Nf6 22.f5 Nd5 23.Rf3 Ne3 24.Re3 Qd4 25.Rae1 Rae8 26.Nf3 Qc5 27.Ne5?? Re5–+ 28.Kh1 Re3 29.Re3 Qe3 30.fg6 fg6 (30...fg6 31.h3 Rf3–+) 0–1. gtate (1815) – maf (1610), net–chess.com, 2002.

7.0-0 c6

8.0-0 Na6 9.a3 Nc7 10.Qb3 a5 11.Rd1 a4 12.Qc2 Bf5 (12...e4 13.Ne1=) 13.d3+= Qe7 Black intends e4 14.Nbd2 Rfd8 15.Rac1 Nce8 16.h3 e4 17.Nd4 d5 18.Nf5 gf5 19.Bd4 Nd7 20.Bg7 Kg7 21.cd5 cd5 22.de4 fe4 23.Bb5 Rdc8 (23...Nb6 24.Nb1+=) 24.Qb2 (24.Qc8 Rc8 25.Rc8+–) 24...f6? (better is 24...Qe5 25.Qe5 Ne5 26.Rc8 Rc8 27.Ba4 Nd3+=) 25.Rc8+– Rc8 26.Bd7 (26.Ne4 Nb6 27.Qd4 Nd6 28.Nd6 Qd6+–) 26...Qd7 27.Ne4! b6 28.Qd4 Rc4?? 29.Qc4!! Nc7 30.Nc3 Qf7 31.Nd5 Nd5 32.Qd5 Kg6 33.Qf7 Kf7 34.Rd6 b5 35.Rb6 f5 36.Rb5 Ke6 37.f4 h5 38.Re5 Kf6 39.b5 Kg6 40.Re6 Kf7+– 41.Ra6 (41.Ra6 Ke7 42.Rc6 Kd7 43.Rc3 Ke7 44.b6 h4 45.b7 Kd6 46.b8Q Ke6 47.Qb6 Ke7 48.Rc7 Ke8 49.Qb8#) 1–0. Schaeferhoff,Heinrich – Grueneschild,Hildegard, Bayern–ch Seniors, 1994. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.Bb5 c6 6.Be2 e5 7.c4 0-0)

8.a4 a5 9.b5 c5 10.d4 e4 11.Nfd2 Qe7 12.Nb3 Bf5 13.Qd2 b6 14.Nc3 Nbd7 15.h3 h5 16.f4 ef3 17.Bf3 Bh6 18.Rae1 Rae8 19.Qd1 Be3 20.Kh1 Qd8 21.Bc6 Bh6 22.dc5 dc5 23.Nd5 Nd5 24.Re8 (worse is 24.Qd5 Re1 25.Re1 Qh4–+) 24...Re8 25.cd5 Re3 26.Rf3? (better is 26.Bc1 Rd3 27.Qe2 Bc1 28.Nc1-/+) 26...Bg4!–+ 27.Nd2 Rd3!! 28.Bc1 Bf3 29.gf3 Ne5 30.Qe2 Re3 31.Qd1 Nd3 32.Ne4 Re4! 33.fe4 Nf2 34.Kg2 Nd1 (34...Nd1 35.Ba8 Bc1 36.Bb7 Qg5 37.Kf3 Qd2 38.e5 Qf2 39.Ke4 Qe3) 0–1. Katalymov,Boris N – Kotkov,Yuri M, Spartak–ch Minsk, 1962. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 c6)

8.a4 Be6 9.b5 Nbd7 10.h3 Nc5 11.d4 ed4 12.Bd4 Ncd7 13.Ng5 Qe7 14.Ne6 fe6 15.Bf3 d5 16.cd5 ed5 17.bc6 bc6 18.Nd2 Ne5 19.Be2 Rfc8 20.Nb3 Nfd7 21.Rc1 c5 22.Be5 Qe5 23.Ba6 Rc7 24.Bb5 c4 25.Nd4 Nb6 26.a5 Nc8 27.a6 Rb8 28.Nc6 Rc6 29.Bc6 Ne7 30.Bb7 Rd8 31.Rc4 Nf5 32.Rc8 Rc8 33.Bc8 Bf8 34.Bf5 gf5 35.Qb3 Bd6 36.Rd1 Qh2 37.Kf1 Qh1 38.Ke2 Qg2 39.Qd5 Qd5 40.Rd5 1–0. Abdullaevich (1785) – agathis (2015), lichess.org, 2019.

8.a4 Qe7 9.Nc3 b6 (9...a5 10.b5=) 10.d4+= Bb7 11.Qb3 e4 12.Nd2 d5 13.cd5 cd5 14.b5 Nbd7? (better 14...Qe6!?+/-) 15.Ba3+- Qe6 16.Bf8 Rf8 (16...Bf8 17.Rfc1+-) 17.a5 Ne8 18.ab6 ab6 19.Ra7 Nd6 20.Qb4 (better 20.Nce4!? Ra8 21.Ra8 Ba8 22.Nd6 Qd6+-) 20...f5 21.Qb3 g5 Black plans f4 (21...Ra8 22.Ra8 Ba8 23.Qa2+-) 22.Kh1 f4? (better 22...Ra8 23.Rfa1 Ra7 24.Ra7 Bf6+-) 23.ef4 (better 23.Nde4 Ne4 24.Ne4 Qe4 25.Rb7 Nf6+-) 23...gf4 (better 23...Bd4!? 24.Rb7! Nb7+/-) 24.Nde4!+- f3?? (24...de4 25.Qe6 Double attack (25.Qe6 Pinning; 25.Qe6 Deflection); 24...Ne4 25.Rb7 Deflection (25.Rb7 Overloading)) 25.Bf3 Bd4 (25...Ne4 26.Ne4 Bc8 27.Ng5+-) 26.Nd6 Qd6 27.Rb7 Bc3 (27...Nc5 28.Bd5 Kh8 29.Ne4+-) 28.Qd5 (28.Bd5 Kh8 29.Qc3 Nf6+-) 28...Qd5 29.Bd5 Kh8 30.Rd7 1-0. carlos78 (2190) - jmac26 (1970), Rated Blitz game, lichess.org, 2014.

8.c5 e4 9.Nd4 dc5 10.bc5 Nbd7 11.Nb3 Qe7 12.Qc2 Re8 13.Na3 a5 14.Rac1 a4 15.Nd4 Bf8 16.Nc4 Qc5 17.Ba3 Qd5 18.Bf8 Rf8 19.f3 b5 20.fe4 Ne4 21.Bf3 Re8 22.d3 bc4 23.Be4 Qg5 24.Qf2 f5 25.Bc6 Ra5 26.dc4 Qe3 27.Bd5 Kg7 28.Rce1 Qf2 29.Kf2 Re1 30.Re1 Nf6 31.Re7 Kh6 32.Bc6 Rc5 33.Bb5 Ne4 34.Ke3 Nd6 35.Kd3 Bb7 36.g3 Be4 37.Kc3 Nc4 38.Kb4 Re5 39.Re5 Ne5 40.Ka4 Nf3 41.Nf3 Bf3 42.Kb4 g5 43.a4 f4 44.a5 fg3 45.hg3 Bb7 46.Kc5 Kg7 47.Kb6 Be4 48.a6 h5 49.a7 h4 50.gh4 gh4 51.Bc6 Bc6 52.Kc6 Kf6 53.a8Q Kg5 54.Qa1 Kf4 55.Qh1 Kg3 56.Kd5 1–0. Warner,D (2230) – Bratovic,B (2290), Bled, 2002.

8.d3 a5 9.a3 (9.b5 cb5 10.cb5 a4+=) 9...h6 (9...ab4 10.ab4 Ra1 11.Ba1=) 10.Qb3 (10.d4 e4 11.Nfd2 ab4 12.ab4 Ra1 13.Ba1 d5=) 10...Bg4 11.Nbd2 Nbd7 12.h3 Bf3 (12...Be6 13.e4=) 13.Bf3+= Qc7 14.Rfc1 Qb6 15.Qc3 ab4 16.ab4 Ra1 17.Ba1 (17.Ra1 Rd8+=) 17...Ra8= 18.Bb2 d5 19.c5 (19.Qb3 Rd8+=) 19...Qc7 (19...Qb5 20.Ra1 Ra1 21.Ba1=) 20.Qc2 Ne8 21.Be2 (21.b5 Qd8=) 21...f5 (21...Ra2 22.e4 Nef6 23.Qb3=) 22.Nb3 (22.d4 ed4 23.Bd4 Bd4 24.ed4 Nef6+=) 22...Nef6 23.Na5 g5 Black prepares f4 24.Qb3 f4 (24...Ra7 25.Ra1=) 25.e4+= Kh8 26.Bf3 d4 27.Nc4 h5 (27...Bf8 28.Ra1 Ra1 29.Ba1+=) 28.Nd6 (28.Qd1 Ra2+/-) 28...g4+= 29.hg4 hg4 30.Be2 Bf8 31.Qe6 (31.Nf7!? Kg7 32.Ng5+/-) 31...Bd6= 32.cd6 (worse 32.Qd6 Qd6 33.cd6 Ra4-/+) 32...Qd8 (better 32...Qb6!? 33.Rc4 Ra2=) 33.Bg4+/- Qf8 34.Bf5 (34.Bh5 Rd8 35.Bf7 Kg7+=) 34...Kg7 (34...Re8 35.Qb3+=) 35.b5 c5 (35...cb5 36.Rc7 Combination) 36.b6 Ra2?? (36...Nb6 37.Qe7 Double attack (37.Rc5 Deflection)) 37.Rb1 (better 37.Qa2 Qd6 38.Qa5 Qb6 39.Qb6 Nb6 40.Rc5+-) 37...Qf7 (37...Ra8 38.Bc1=) 38.Kf1 (38.g4 fg3 39.Qf7 Kf7 40.fg3 c4 41.dc4 Nc5+=) 38...Qe6 39.Be6 Kf8?? (better 39...Ra6 40.Bc1 Rb6 41.Rb6 Nb6+=) 40.Ba2+- 1-0. pacal56 (2210) - mecker (2080), Rated Blitz game, lichess.org, 2014.

8.d3 Na6 9.a3 e4 (9...Qe7 10.Nbd2+=) 10.de4+= Ne4 11.Bg7 Kg7 12.Qd3 f5 13.Nc3 Re8 14.Nd4 Nc7 15.Ne4 fe4 16.Qd2 Qf6 17.f3 ef3 18.Rf3 Qe5 19.Raf1 Ne6?? (better is 19...Re7 20.Bd3 c5+/–) 20.Nf5+– gf5 21.Rf5 Qe4 22.Bd3 Qh4 (22...Qg4 23.Rf7 Kg8+–) 23.Rf7 Kg8 24.Qc3 Qh6 (24...Nd4 25.ed4 Bg4 26.Bh7 Kh8 27.d5 Re5+–) 25.Bh7 Qh7 26.Rh7 Kh7 (26...Nd4 27.Qd4 Kh7 28.Rf7 Kg6 29.Qf6 Kh5 30.Rh7 Kg4 31.Qf4) 27.Rf7 Kg8 (27...Kg6 28.Qf6 Kh5 29.Rh7 Kg4 30.Rh4) 28.Qf6 1–0. pierred – anony, internet, 2014.

8.d3 Be6 9.Nbd2 h6 10.a4 a6 11.Qc2 Nbd7 12.h3 d5 (12...a5 13.b5=) 13.c5 (better 13.Ne5!? a5 14.b5 cb5 15.ab5+–) 13...Qc7= 14.Rfc1 d4 (better 14...Rfe8!?=) 15.ed4+– ed4 16.Nd4 Bd5 17.N4f3 (17.Nc4 Bc4 18.Qc4 Rfe8+–) 17...Rfe8 18.Re1 Bf3 (18...a5 19.ba5 Ra5 20.d4+–) 19.Bf3 (19.gf3?! Qf4 20.Nc4 Re7=) 19...Re1 (19...a5 20.Re8 Re8 21.ba5 Qa5 22.d4+–) 20.Re1+– Re8 21.Re8 Ne8 22.Ne4 f5 23.Bg7?? (23.Ng3 Bb2 24.Qb2 Qe5 25.Qe5 Ne5+–) 23...Kg7 (better 23...fe4 24.Bh6 ef3 25.Qc4 Kh7+=) 24.Qc3+– Qe5 25.d4 Qf4 26.d5 (26.Ng3 Nef6+–) 26...Qe5+– 27.Qe5 (27.dc6!? bc6 28.Qd2 Qa1 29.Bd1 fe4 30.Qd7 Kf8 31.a5+–) 27...Ne5+= 28.Nd6?? (better 28.Nc3+=) 28...Nd6-/+ 29.cd6 Kf7 30.dc6 (better 30.Be2 cd5 31.b5 ab5 32.Bb5-/+) 30...bc6?? (better 30...Nf3 31.gf3 bc6-/+) 31.Be2+– Ke6 32.Ba6 Kd6 33.Kf1 (33.Be2 c5 34.f4 Nc6+–) 33...Kc7 (33...c5!? 34.f4 Nc6 35.bc5 Kc5+–) 34.Ke2+– Kb6 (34...f4 35.g3 fg3 36.fg3+–) 35.Bc8 (35.f4!? Nf7 36.Bd3 Nd6+–) 35...Nc4 36.Bd7 Nb2 37.b5 (better 37.a5 Kb5 38.f4+–) 37...c5= 38.Be8 g5 39.g3 Na4 40.f4 (40.Kd2!?=) 40...Nc3 (40...gf4 41.gf4 Nc3 42.Ke3 Nb5 43.Bd7-/+) 41.Kd3=+ Nb5 (41...Ne4 42.fg5 Ng5 3.Bd7 Nh3 44.Bf5-/+) 42.fg5 hg5 43.h4 (43.Bb5 Kb5 44.h4 c4 45.Ke2 f4 46.hg5 fg3=) 43...Nd6 (43...f4 44.hg5 fg3 45.Ke3-/+) 44.Bd7 f4 45.gf4 (better 45.hg5 fg3 46.Ke2-/+) 45...gf4 (better 45...c4 46.Ke3 gh4–+) 46.h5=+ Nf7 (46...Kc7 47.Bg4 Ne8=) 47.Be6 (47.Ke4 c4 48.Kf4 c3+=) 47...Nh6 (47...Ng5 48.Bd5=+) 48.Bc4 (48.Ke4 Kc6+=) 48...Kc6 (better 48...Ng4!? 49.Bd5 Nf6=+) 49.Ke4= Kd6 50.Kf4 Ke7 51.Kg5 Nf7 52.Bf7 Kf7 53.Kf5 c4 54.Ke4 Kg7 55.Kd4 Kh6 56.Kc4 Kh5 ½–½. GuestFWLS – GuestXPCX, freechess.org, 2017.

8.d3 Re8 9.Nc3 Nbd7 10.Nd2 d5 11.cd5 cd5 12.Bf3 Nf8 13.Nb3 b6 14.a4 Bb7 15.a5 e4 16.Be2 Rc8 17.a6 Ba8 18.Nb5 Qd7 19.de4 Re4 20.N3d4 Ne6 21.Rc1 Nd4 22.Rc8 (worse 22.ed4 Ree8=) 22...Qc8 23.Bd4 Qd7 (23...Re7 24.Qa1 Qe6 25.Rc1+–) 24.Qa1 (24.Qc2 Re8+–) 24...Ne8 (24...Re6 25.Rc1 Bc6 26.Nc3+–) 25.Rc1 (better 25.Bg7 Ng7 26.Rc1+–) 25...Bc6+= 26.Bg7 Bb5 27.Bb5 Qb5 28.Bd4 f6 (28...Qb4 29.Rc8=) 29.h3 (29.Rc8!?+–) 29...Qb4= 30.Bf6 Rc4 31.Rd1 Qd6 32.Bb2 b5 33.Be5 Qc6 34.Qa5 Rc1 35.Rc1 Qc1 36.Kh2 Qc6 37.f4 Kf7 38.Bb8 h5 (better 38...Qd7!?+=) 39.Ba7+– Nc7 40.Bb6 (40.Bb6 Na8 41.Bd4+–) 1–0. Gubajdullin,Alexei (2365) – Maximov,Oleg (2280), Moscow Championship Rapid, 2016. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 0-0 6.Be2 c6 7.0-0 e5)

8.d3 Bf5 9.Nbd2 Nbd7 10.Rc1 e4 (10...a5!? 11.b5 Nc5=) 11.de4+= Be4 12.Ne4 Ne4 13.Bg7 Kg7 14.Nd4 d5 (14...Re8 15.Bd3+=) 15.Nb3 (15.cd5 cd5 16.Qb3 Ndf6+/-) 15...Ne5 (15...Ndf6 16.Qd4+=) 16.cd5 (16.Qd4 f6 17.Rfd1 Re8 18.cd5 cd5+/-) 16...cd5 (16...Qd5 17.Qc2 f5 18.Qb2+-) 17.Qd4 f6 18.Nc5 Nc5 19.Rc5 Qe7 20.Rfc1 Rfd8 21.Rc7 (21.Bb5 Nc4+-) 21...Rd7+/- 22.Bb5?? (better 22.Rd7 Qd7 23.b5+/-) 22...Rc7-+ 23.Rd1 Rd8 24.h4 (24.a3 a6 25.Bf1 Nc4-+) 24...a6 25.Bd3 Nd3 26.Qd3 Rc4 27.h5 Qe5 28.f4 (28.hg6 hg6 29.Qd2 Rh8-+) 28...Qe4 29.Qe2 Rb4 30.hg6 hg6 31.g4 (31.Qd3 b5 32.Rd2 Re8-+) 31...Rc4 (31...Rh8 32.Qg2 Qe3 33.Qf2 Rh1 34.Kh1 Qf2 35.Rc1 Qf3 36.Kg1 Qe3 37.Kh1 Qc1 38.Kg2 Rb2 39.Kg3 Qe3 40.Kh4 Rh2) 32.f5 (32.Rf1-+) 32...Rc2 (32...Rh8 33.Qg2 Qe3 34.Kf1 Rf4 35.Qf3 Rf3 36.Kg2 Qf2) 33.fg6 Re2 34.Kf1 (34.Rd5 Qg2) 34…Qg2 0-1. Martinez,Federico - Villagra,Juan Carlos (1775), XX Rio Grande Domingo Int, 2020.

8.d3 Bg4 9.h3 (9.Nc3 Nbd7 10.d4 Qb6) 9...Be6 10.d4= e4.

8.d4 ed4 9.Nd4 Qe7 10.Nc3 Nbd7 (10...c5 11.bc5 dc5 12.Ba3=+) 11.Qb3+= Ne5 12.h3 Be6 (12...a5 13.a3+=) 13.Rad1+– Qd7? (better 13...d5 14.Ne6 fe6 15.cd5 cd5+= (worse 15...ed5 16.e4+–)) 14.f4+– Bh3 (14...Nc4 15.Bc4 Bc4 16.Qc4 Rfe8+–) 15.fe5 (15.gh3?! Qh3 16.fe5 Qg3 17.Kh1 Qh3 18.Kg1 Qg3 19.Kh1 Qh3 20.Kg1=) 15...de5 16.Nc2 (16.gh3?! Qh3 17.Nf3 Bh6+–) 16...Qe6 17.gh3 Qh3 18.Rf2 Ng4 (18...Rad8 19.Rd8 Rd8 20.c5+–) 19.Bg4 Qg4 20.Rg2 Qf3 (20...Qe6 21.Ne4+–) 21.Rf1 Qh3 22.Ne4 Rad8 23.c5 Rd7 (23...b6 24.Nd6 Qe6 25.Qa4+–) 24.Ng5 Qf5 (24...Qh5+–) 25.Rf5 gf5 26.Nf3 Kh8 27.Ne5 Rd1 28.Kh2 Be5 29.Be5 f6 30.Bf6! Rf6 (30...Rf6 31.Rg8) 31.Rg8 1–0. Janek – Freeday, internet, 2018.

8.a4 Nbd7

9.b5 c5 10.d4 ed4 11.ed4 cd4 12.Nd4 Nc5 13.Nd2 b6 14.Bf3 d5 15.Nc6 Qc7 16.cd5 Nd3 17.Bd4 Bf5 18.Nc4 Nd5 19.Bg7 Kg7 20.Bd5 Nf4 21.Bf3 Rae8 22.Qd6 Qd6 23.Nd6 Re6 24.Nf5 gf5 25.Na7 Nd3 26.Nc6 Nc5 27.Rfe1 Re1 28.Re1 Na4 29.Re7 Nc3 30.Nd4 Kf6 31.Rc7 Rd8 32.Rc3 Rd4 33.g3 f4 34.Rc6 Ke7 35.Rb6 fg3 36.hg3 Rd3 37.Kg2 1–0. carocan (1720) – doniar (1645), kurnik, 2012.

9.b5 Re8 10.d4 e4 11.Nfd2 d5 12.Nc3 h5 (12...Nf8) 13.h4 Nf8 14.g3 N8h7 15.Kg2 Bg4 16.Bg4 Ng4 17.cd5 cd5 18.Qb3 Ngf6 19.Ne2 Qd7 20.Rfc1 Rad8 21.b6 a6 22.Rc7 Qg4 23.Nf4 g5 24.hg5 Ng5 25.Rh1 Nf3 26.Qc2 (26.Nf3!? Qf3 27.Kg1+=) 26...h4= 27.Rh3?? (better is 27.Nb3=) 27…Ne1–+ (27...Ne1 28.Kh2 Nc2 29.Rh4 Qd1–+) 0–1. carocan (1775) – atesz (1885), kurnik, 2011.

8.Qb3 e4

9.Nd4 c5!? 10.Nc2 Nc6=+.

9.Nd4 d5 10.cd5 cd5 11.d3 Nc6 12.Nc6 bc6 13.Nd2 Be6 (13...a5 14.de4 de4 15.Rfd1+=) 14.de4+= de4 15.Qc2 Bd5 16.Bc4 (16.Nc4!?+=) 16...Qd6= 17.a3 (17.Rac1 Ng4 18.g3 Bb2 19.Qb2 Rfd8=) 17...Rfe8 (17...Ng4 18.g3 Bb2 19.Qb2=+) 18.Bd5 Qd5 (better 18...cd5!? 19.h3 Rac8=) 19.Rfd1+– Qe6 (19...Qh5 20.h3+– (20.Qc6?! Rac8 21.Qa4 Ng4=)) 20.Nb3 Red8 (better 20...Rac8!?+–) 21.Nd4+– Qe5 22.Nc6 Qc7?? (better 22...Rd1 23.Rd1 Qe6+–) 23.Rd8 Rd8 24.Rc1 (better 24.Be5 Rd6 25.Bd6 Qd6 26.Rd1+–) 24...Ng4+– 25.g3 (25.Nd8?! Qh2 26.Kf1 Qh1 27.Ke2 Qg2=) 25...Bb2?? (better 25...Rd3+–) 26.Nd8+– (26.Qb2?! Rd3 27.Na7 Rb3+–) 26...Qc2 (26...Qd8 27.Qb2 h5 28.Qd4 Qd4 29.ed4+–) 27.Rc2 Ba3 28.b5 (28.Nc6 Kg7+–) 28...Ne5 29.Ra2 (29.Rc7!? Kf8+–) 29...Bc5 30.Nc6 Nc6 (30...Nf3 31.Kg2 Kf8+–) 31.bc6 Bb6 32.Rc2 (32.Ra7! Kg7+– (32...Ba7?? 33.c7 Bc5 34.c8Q Bf8 35.Qc4+–)) 32...Bc7 33.Rd2 Kf8 (33...Kg7 34.Rd7 Bb6 35.Ra7+–) 34.Rd7 Be5 35.c7 Bc7 36.Rc7 a5 37.Ra7 Kg7 38.Ra5 f5 (38...h5 39.Ra6+–) 39.g4! Kf6 (39...fg4 40.Re5 Combination) 40.gf5 gf5 41.Kg2 Kg5 (41...f4 42.ef4 h6 43.Ra6 Kg7 44.f5+–) 42.Kg3 h5 43.h4 Kf6 44.Kf4 Kg6 45.Ra6 (45.Rf5 Kh6 46.Rf6 Kh7 47.Kf5 Kg7 48.Kg5 Kh7 49.Rf7 Kh8 50.Kh5 Kg8 51.Kg6 Kh8 52.Rf8) 45...Kh7 46.Kf5 Kg7 47.Rb6 (47.Ra8 Kf7 48.Ra7 Ke8 49.Ke6 Kd8 50.Rf7 Kc8 51.Kd6 Kb8 52.Kc6 Ka8 53.Kb6 Kb8 54.Rf8) 47...Kh7 (47...Kf7 48.Rb7 Ke8 49.Ke6 Kf8 50.Rf7 Kg8 51.Ke7 Kh8 52.Kf6 Kg8 53.Kg6 Kh8 54.Rf8) 48.Kg5 (48.Kf6 Kg8 49.Rb8 Kh7 50.Rd8 Kh6 51.Rh8) 48...Kg7 49.Rb7 Kf8 50.Kf6 Ke8 51.Rh7 Kd8 52.Ke6 Kc8 53.Kd6 Kb8 54.Kc6 Ka8 55.Kb6 Kb8 56.Rh8 1–0. Sandin,Albin – Nabbing,Johanna, Swedish Championship U16, 2016.

9.Ne1=.

8.Qb3 Be6

9.d4 a5 10.de5+/– de5 11.Ne5 b5 Black prepares a4 12.Rd1 Qc7 13.Nd2 a4 (13...ab4 14.Qb4 Na6 15.Qa3+/–) 14.Qc2 a3 15.Bd4 bc4 16.Nec4 Nd5 (16...Na6 17.Rab1+–) 17.Bg7 Kg7 18.Rab1 Na6 (better is 18...Rd8+–) 19.Nf3 (19.Na3 Qe7 20.Qb2 Kg8+–) 19...Nab4? (better is 19...Rfb8!?+/–) 20.Rb4!+– Nb4 21.Qc3 Kg8 22.Qb4 Rfb8 23.Qc3 Bc4 24.Qc4 Rb2 25.Ng5 Qe7 26.h4 h6 27.Ne4 Rb4?? 28.Qc6 Qe4+/– 29.Qe4 Re4 30.Bf3 Rae8 31.Be4+– Re4 32.Rd3 Ra4+/– 33.g3 Kf8 34.Kf1 Ke7 35.Ke2 Ke6 36.Kd2 Rb4 37.Kc3 Rb2+/– 38.Rd2 Rb7 39.Kc4 Ke5 40.Rd3 Rb2 41.Ra3 Rf2+= 42.Ra7 Ke4? 43.Re7+– Kf3 44.Rf7 Kg3 45.Rf2 Kf2 46.e4 g5 47.e5?? g4?? 48.e6+– g3 49.e7 g2 50.e8Q g1Q 51.Qf7 Ke2 52.Qe6 Kd1 53.Qd5 Kc1 54.a4 Qg4 55.Kb5 Qg7 56.a5 Qb2 57.Kc6 Qb8?? 58.a6 Qa7?? 59.Qc5+– Qc5 60.Kc5 Kc2 61.a7 Kd3 62.a8Q Ke3 63.Qc6 Kf4 64.Qh6 Kg4 65.Qg5 Kh3 66.h5 Kh2 67.h6 Kh1 68.h7 Kh2 69.h8R# (69.h8Q#) 1–0. carocan (1840) – luisfigo1985 (1745), kurnik, 2011.

9.d4 ed4!? 10.Bd4 Qe7+=.

9.d4 e4 10.Nfd2 Nbd7=.

9.Ng5 Bf5= 10.Nc3 h6 11.Nf3 Nbd7 12.d4 e4 13.Nd2 Qe7 14.a4 h5 15.a5+= Bh6 16.Qc2 Rfe8 17.c5 d5 18.b5 Ng4 19.Bg4 Bg4 20.Rfb1 a6 21.bc6 bc6 22.Qc1 f5?? 23.Qe1?? f4= 24.Nf1 Qh4 25.ef4+= Bf3? 26.g3 Qh3= 27.Ne3 Reb8 28.Qf1 Qe6 29.Na4 Rb5 30.Nb6+= Rf8 31.Bc1 Rb1 32.Rb1+= Nb8 33.Ng2 Bg7 34.Be3 Bf6 35.Ne1 Bg4 36.Rb4 Kh7 37.Rb3 Rd8 38.Kh1 Kg7 39.Na8 Qc8 40.Nb6 Qe6 41.Rb1 h4 42.Rb2 Rh8 43.Kg1 Qf5 44.Na4 Qh5 45.Nc3 Rf8 46.Qg2 Qf5 47.Qf1 hg3 48.fg3+= Qc8 49.Na4 Kg8 50.Ng2 Qc7 51.Nb6 Qg7 52.Qf2 Bd8 53.Qd2 Qc7 54.Rb1 Bf6+= 55.Qb4 Be2 56.Na8 Qd8 57.Qb6 Bb5 58.Qd8 Bd8 59.Nb6 Bf6 60.h4 Rd8 61.Kf2 Nd7 62.Rc1 Nf8+= 63.Rb1 Ne6 64.Rb4+/– Kf7 65.g4 Rh8 66.g5 Bg7 67.Kg3 Ke7= 68.Ne1 Nd8 69.Nc2 Nb7 70.Bd2 Ke6= (71.Rb3 Bd3 72.Nd5 Na5 (72...Kd5? 73.Rb7 Bc2 74.Rg7+–) 73.Nc7 Kd7 74.Ba5 Bc2+–). Althoff,Guntram – Buerger,Carsten (2245), Weilburg NBG op, 1995.

8.Nc3 a5

9.a3 Bf5 10.Nh4 Bd7 (10...Be6 11.Nf3=) 11.ba5 (11.b5!?+=) 11...e4 12.d3 (12.f4!?+=) 12...g5-/+ 13.Ne4 Ne4 14.Bg7 Kg7 15.de4 gh4 16.Bh5? (better is 16.Qd6 Bc8 17.c5-/+) 16...Ra5–+ 17.Bg4 (17.Be2 Bc8–+) 17...Na6 18.Bd7 Qd7 19.e5 Re5 20.Qf3 Nc5 21.a4 Qe6 22.a5 Re4 23.Rfb1 Rc4 24.Rb7 Nb7 25.a6 Ra8 26.h3 Qe5 27.Qe2 Qa1 28.Kh2 Qe5 29.f4 Rf4! 30.Kh1 Ra4 31.ab7 Ra1 (31...Ra1 32.Qd1 Rd1#) 0–1. Neumann,Frank – Hammerschmidt,Volker (1825), OP–2012–0-02283, 2012.

9.b5 Nbd7 10.Rc1 e4 11.Ne1 Ne5 12.f3 d5 13.Ne4 Ne4 14.fe4 de4 15.Bd4 Qe7 16.d3 c5 17.Be5 Qe5 18.de4 Qe4 19.Qd3 Bf5 20.Qa3 Bh6 21.Rc3 Rae8 22.Kf2 b6 23.Bf3 Qe5 24.g3 Re7 25.Ng2 g5 26.Rd1 Bg7 27.Rd5 Qf6–+ 28.Rc1 Be4 29.Ne1 Bd5 30.cd5 g4 31.d6 Rd7 32.Qd3 Rd6 33.Qe4 gf3 34.Nf3 Rfd8 35.Kg2 Re6 36.Qc2 Re3 37.Rf1 Rde8 38.Rf2 Qe6 39.h4 Re2 40.Qd1 Qe3 (41.Qg1 Qa3–+) 0–1. Chirpii,Alexandru – Cernea,Radu (2140), Centrocoop Sept op, 1999.

8.Nc3 Nbd7

9.Qb3 a5 10.a3 Ne8 11.d4 Kh8 12.Rfd1 Qc7 13.de5 de5 14.c5 f5 15.Ng5 Ndf6 16.Bc4 h6 17.Ne6 Be6 18.Be6 Ng4 19.h3 Nf2? (better is 19...Ngf6+/–) 20.Kf2+– f4 21.e4 Nf6 22.Kg1 g5 23.Bf5 h5 24.Na4 g4 25.Rd6 gh3 26.Be5 (26.Qh3 ab4 27.ab4 Qf7+–) 26...Qe7 (26...hg2 27.Nb6 Rad8+–) 27.Re6 Qf7 28.Qh3 Rae8 29.Bf6 Bf6 30.Re8 Re8 31.Rf1 Bd4 32.Kh1 Be3 33.Nc3 Rg8 34.Ne2 Rg5 35.Nf4 Qc4 36.Qf3 Bd4 37.Ne6 (37.Ne6 Qc3 38.Ng5 Qf3 39.Nf3+–) 1–0. orangutanb4 (1950) – plamen5 (1640), kurnik, 2011.

9.Qb3 Qc7 10.a4 Nb6 11.a5 Nbd7 12.Rac1 a6 13.d4 Ne8 14.de5 de5 15.Rfd1 f5 16.c5 Kh8 17.Na4 Nef6 18.Nb6 Re8 19.Na8 1–0. orangutanb4 (2010) – doniar (1700), kurnik, 2012.

8.Nc3 Re8

9.Rc1 Nbd7 10.Qc2 Nf8 11.Na4 Ng4 12.Ne1 Qh4 13.Nf3 Qh6 14.h3 Nf6 15.c5 Bf5 16.Qd1 Rad8 17.Qe1 Ne6 18.cd6 e4 (worse is 18...Rd6 19.Be5 Rdd8 20.d4+/–) 19.Nh2 Ng5 20.Bg4 (20.h4!? Qh4 21.f4 Qe1 22.Rfe1+=) 20...Bg4 21.Bf6 Nh3 (worse is 21...Bf6 22.Ng4 Qg7 23.h4+=) 22.gh3 Bf3 (22...Bf3 23.Nf3 ef3–+) 0–1. Lafuente,Pablo (2430) – Valerga,Diego (2495), ARG Circuit Vicente Lopez, 2004. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 c6)

9.Re1 c5 10.bc5 e4 11.Nd4 dc5 12.Nb3=.

9.Re1 Bg4 10.h3 Bc8 (10...Bf3 11.Bf3 d5 12.d3=) 11.d3 (11.d4 ed4 12.Nd4 c5=) 11...Nbd7= 12.e4 Nf8 13.a3 a5 14.b5 Ne6 15.bc6 (15.Rb1 Nd4+=) 15...bc6= 16.d4?? (better 16.Bc1=) 16...ed4–+ 17.Nd4 (better 17.Na4 Ne4 18.Bd3–+) 17...Nd4 18.Qd4 Ne4!! 19.Qd3 (19.Ne4 Bd4) 19...Nc3?? (better 19...Bf5 20.Nd1 Nf2–+) 20.Bc3=+ Bf5 21.Qg3 Bc3 22.Qc3 Qc7 23.Bf3 Rab8 24.Re8 Re8 25.Rb1?? (better 25.c5 d5 26.Re1=+) 25…Bb1–+ (25...Bb1 26.Qd2 Be4–+) 0–1. Markzela (1755) – tigranrules (2200), lichess.org, 2020.

8.d3 Nbd7

9.a4 b6 10.Nbd2 (10.Nc3 c5= (10...a6+=)) 10...Bb7 (10...Qc7 11.Bc3=) 11.Qb3 (11.e4 Qc7+=) 11...c5 (11...a5 12.b5=) 12.b5 Re8 13.e4 Nf8 (13...Nh5 14.g3=) 14.Rad1 (14.a5 Ne6+=) 14...Ne6= 15.Rfe1 Nd4 (15...a6 16.Rb1=) 16.Nd4 ed4 17.Qc2 (17.Ra1 a6=) 17...Nd7 18.Nf1 (18.Bc1 a6=) 18...Ne5 (18...a6 19.Nd2=) 19.f4 Nd7 20.Bg4 Nf6 (20...a6 21.Nd2=) 21.Bh3 (21.Bf3 a6=) 21...Bc8 (21...a6 22.Nd2=) 22.Bc8 Rc8 (22...Qc8 23.Bc1=) 23.Qf2 (23.Ra1 a6=) 23...Rc7 (23...a6 24.Qg3=) 24.h3 (24.Qg3 Nh5 25.Qg4 Rce7=) 24...Rce7= 25.Bc1 Ne4? (better 25...Qd7!?=) 26.de4+– Re4 27.Re4 Re4 28.Ng3 (28.Nd2 Re8+–) 28...Re7 (28...Re7 29.f5 Rd7+–; 28...Re8 29.Qf3+–). Brzoza,Miroslaw – Horbanowicz,R, corr Poland, 1981.

9.a4 Qb6 10.Bc3+= (10.b5 Qc7) 10...c5.

9.a4 Qe7 10.Nc3 d5.

9.a4 Re8 10.Qc2 d5 11.Rd1 Qe7 12.c5 e4 13.Nfd2 (13.de4!? de4 14.Nd4=) 13...ed3=+ 14.Bd3 Ne5 (14...a5!?-/+) 15.Be2=+ Bf5 16.Qb3 Rad8 17.Nf3 Nfg4 (17...Nf3 18.Bf3 Qe6 19.Nd2=) 18.Ne5 (18.Nbd2 Qe6=) 18...Be5 19.h3 Bb2 20.Qb2 Nf2 21.Kf2 Qe3 22.Kf1 Bh3 23.Ra3? (better is 23.Rd2 Bg4 24.Nc3=+) 23...Bg2!-/+ 24.Kg2 Qe2 25.Qe2 Re2 26.Kf3 Rb2 27.b5 cb5 28.ab5 Rb5 29.Ra7 Rc5 30.Rb7 d4 31.Rd3 Rh5 32.Re7 f5 33.Kf4 Rh1 34.Na3 Rf1 35.Kg5 Rg1 36.Kf6 Rf8–+ 37.Ke6 Re1 38.Kd7 Re7 39.Ke7 f4 40.Rd4 f3 41.Rd1 g5 42.Nc4 f2 43.Ne3 g4 44.Nf1 Rf3 45.Rd5 Rf4 46.Rg5 Kh8 47.Ke6 h6 48.Rf5? Re4 49.Kd5 Re2 50.Rf4 h5 51.Ng3 Rd2 52.Ke4 Kg7 53.Nf1?? g3 54.Nd2? (54...g2 55.Rf2–+; 54.Ng3 Kg6 55.Ke3=). Sternik,Ryszard – Rabij,Tomasz, Olsztyn, 1991.

9.Qc2 Re8 10.Nbd2 h6 11.h3 Qe7 12.a3 Nh7 13.e4 Ndf8 14.d4 White plans c5 14...Ne6 15.de5 Nf4 16.Rfe1 de5 17.c5 Ng5 18.Bf1 Nf3 19.Nf3 g5 20.Re3 h5 Black prepares g4 21.Kh2 g4 22.Ng1 Bh6 (22...Rd8 23.Ne2=) 23.Rc3 (23.Rd1 Qf6+=) 23...h4 (23...Rd8 24.Bc4=) 24.Bc1 Qf6 25.hg4 Bg4 26.f3 Be6 27.Qf2 (27.Ne2 a5 28.ba5 Ra5=+) 27...Kh8 28.Nh3 Rg8 29.Bf4 Bf4 30.Nf4 Qf4 (30...ef4?! 31.Rac1=) 31.Kh1 Rg3 32.Rd1 Rag8 33.Rcd3 Kh7 (33...h3 34.Rd8 hg2 35.Bg2 Qh4 36.Kg1–+) 34.Qg1?? (34.Qd2 Qf6 35.Rd8 h3 36.Rg8 hg2 (worse 36...Kg8 37.Qd8 Kg7 38.Qf6 Kf6 39.Rd8+=) 37.Bg2 Rg8-/+ (worse 37...Kg8 38.Qd8 Kg7 39.Qf6 Kf6 40.Rd8+=)) 34...R8g6 (better 34...h3–+) 35.R3d2?? (better 35.Qe3!?-/+) 35...Qf3! 36.gf3 Rg1 37.Kh2 Bb3 38.Rb1 Bc4! 39.Bd3 (39.Bc4 Rb1 Pinning (39...Rb1 Deflection)) 39...Rb1 40.Bb1 Rf6 41.Kg2 Kg6 42.Bd3 Be6 43.Be2 (43.b5 Kg5–+) 43...Kg5 44.Rd8 Kf4 45.Kf2 Rh6 46.Rg8 (46.Rd1 h3–+) 46...h3 47.Rg1 Rh5 48.Rh1 Rh8 49.Bf1 h2 50.Be2 f5 51.ef5 Bf5 (51...Kf5?! 52.Kg3-/+) 52.Kg2 (52.Bf1 b6–+) 52...e4 53.Kf2 (53.Rh2 ef3 54.Bf3 Rh2 55.Kh2 Kf3–+) 53...Rh3 (53...e3 54.Kg2 Bh3 55.Kh2 Bf1 56.Kg1 Rh1 57.Kh1 Be2 58.Kg2 Bf1 59.Kf1 Kf3 60.Ke1–+) 54.Kg2 (54.Bd1 ef3 55.Bb3 b6–+) 54...ef3 55.Bf3 Rf3 56.Rh2 Ra3 57.Rh4 Ke5 58.Kf2 Rb3 0–1. Akgul,Emre Ramazan (1660) – Sat,Eray (1745), TCh–TUR 2nd League, 2018.

9.Nc3 Re8 10.Rb1 d5 11.Qb3 Nb6 12.a4 (12.h3 Qc7=) 12...dc4 13.dc4 Bf5 14.Rbd1 Qc7 15.a5 Nbd7 16.Rd2 (16.h3 Bh6+=) 16...h6 17.Rfd1 Be6 18.Qa4 a6 19.c5 e4 20.Nd4 Bg4 (20...Bd5 21.Qa1=) 21.Qa1 (21.h3 Be2 22.Nde2 Rad8+/–) 21...Be2 (21...Ne5 22.h3 Be2 23.Re2=) 22.Nde2 Ne5 23.Rd4 (23.Na4!?+=) 23...Nd3= 24.Ng3 (24.Rd6 Ng4 (worse is 24...Nb4 25.Na4 Nh5 26.Bg7 Ng7 27.Nb6+–) 25.Nb5 Qe7 (worse is 25...cb5 26.Bg7 Qe7 27.h3+/–) 26.Bg7 Qh4=) 24...Nb2 (24...Rad8 25.Rd8 Rd8+= (worse is 25...Qd8 26.Nce4 Ne4 27.Bg7 Nef2 28.Bh6+/–)) 25.Qb2= Ng4 (25...Nd5!? 26.Nce4 Bd4 27.Rd4 Qe5=) 26.Rd6+/– f5 27.Rg6 Qf7 28.Qa2 Kf8 29.Qf7+– Kf7 30.Rg7! Kg7 31.Nf5 Kg6 32.Nd6 Re7 33.Nce4 Rf8 34.Rd2 Ne5 35.f3 h5 36.h4 Rd7 37.Rd4 Re7 38.Ng5 Rd8 39.e4 Nf7 40.Ngf7 Rf7 41.e5 Re7 42.f4 Rf8 43.g3 Kh6 44.Re4 Kg6 45.Kf2 1–0. Weigel,Hans Juergen (1995) – Pojedziniec,Wladyslaw (2225), EU–chT Seniors, 2001.

9.Nc3 Re8 10.Qc2 Ng4+=.

9.Nc3 Re8= 10.d4 c5.

9.Nbd2 Qe7

10.a3 Re8=.

10.Qb3 a5 11.Qa3=.

10.Qb3 Re8 11.d4=.

10.Qb3 Ne8 11.Rfe1 (11.d4 e4 12.Ne1 Nef6=) 11...Kh8 (11...Nef6 12.Qc2=) 12.c5 (12.Qc2 Nef6=) 12...dc5= 13.bc5 Nc7 (13...Nc5 14.Qa3=) 14.Rac1 (14.Qc2 Nc5 15.Ba3 b6+=) 14...f5 (14...Nc5 15.Rc5 Qc5 16.Ba3+=) 15.Qc2+= g5 16.Nc4 (16.Nb3 Nd5+=) 16...g4 (16...e4 17.Bg7 Kg7 18.Qb2 Kg8 19.Nfe5 Nc5 20.Red1=) 17.Nfd2+= Ne6 (17...Qe6+=) 18.Bf1 (18.Nb3 b5 19.Nca5 Nd8+=) 18...Ng5 (better is 18...b5!? 19.Na5 Nb8+= (19...Nec5? 20.Ba3+–)) 19.Nd6 Nf6 (19...b6 20.d4+/–) 20.N2e4?? (better is 20.Rcd1+/–) 20…Ne8?? (better is 20...fe4 21.de4 Ne8–+) ½–½. Csom,Istvan – Hebden,M, Hastings ENG, 1984. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 c6 5.e3 d6 6.Be2 0-0 7.0-0 e5)

10.Qb3 Nh5 11.Ne4 (11.d4 e4 12.Ne1 Nhf6=) 11...f5 (11...a5 12.Nfd2=) 12.c5+= d5 13.Nd6 b6 Black prepares the advance e4 (13...Nhf6 14.Rfd1+=) 14.Rac1 (14.Qa4 b5 15.Qa5 e4+/–) 14...Ba6 (14...bc5 15.bc5 Nc5 16.Nc8 Rfc8 17.Qa3+=) 15.Qa4+/– Nb8 16.Ba3 (16.Rcd1 Qe6+/–) 16...e4= 17.b5 ef3 18.Bf3 Nf6 (18...f4 19.cb6 ab6 A) worse is 20.ba6 Ra6 (worse is 20...fe3 21.Nc8 ef2 22.Kh1+/–) 21.Qb3 fe3+=; B) 20.bc6+/–) 19.cb6 (19.ba6 b5 20.Qa5 Qd8+=) 19...cb5 (19...ab6 20.Nf5 Qf7 21.Bf8 (worse is 21.Ng7 Bb7 22.Qb3 c5+=) 21...cb5 22.Qf4 Bf8 23.Rc7+=) 20.b7 Bb7 (20...Qb7 21.Qd4) 21.Qb5 Exerts pressure on the isolated pawn (21.Nb5!? Qe8 22.Bf8 Bf8 23.Qb3+=) 21...Ba6+= 22.Bd5 Kh8 23.Qa5 (23.Ba8 Bb5 24.Nb5 Qe5 25.Bf8 Bf8=) 23...Nd5 (23...Qe5 24.Rc5 Nd5 25.Rd5 Qf6+=) 24.Qd5= Nd7 Black is in command 25.Qa5 (25.Nb5 Qe5 26.Qe5 Be5 27.Bf8 Bb5+=) 25...Bd3+= 26.Rfd1 Ne5 27.Nf5 Qg5 (27...Rf5 28.Be7) 28.Bf8 Rf8 29.f4 Qf5 30.fe5 Qf2 31.Kh1 Be4 Threatening mate... how? (31...Qe3?! 32.Qc3 Rd8 33.Rd3 Qd3 34.Qd3 Rd3 35.Rc8 Bf8 36.Rf8 Kg7 37.Rf1=) 32.Rg1 Qe3 Threatening mate: Bxg2 33.Rce1 (better is 33.Qe1 Qf4 34.e6–+) 33...Qf4 34.Qc3 Be5 The mate threat is Qxh2 35.Qg3 Qf5 (better is 35...Qf6 36.Qg4 Bd5–+) 36.Qe3?? (36.Qh4 Bd5 37.a3–+) 36...Qh5 37.h3 (37.h3 Rf3 38.Qf3 Bf3 39.Rgf1 Qh3 40.Kg1 Qg2#; 37.Qh3 Qh3 38.Re4 Qh2#). Schlenker,Rainer – Frolik, 1975.

10.Qc2 Re8 11.Ne4 h6 12.d4 Ne4 13.Qe4 f5 14.Qc2 e4 15.Ne1 Nf6 16.g3 Be6 17.Ng2 Bf7 18.Rac1 (18.Nf4 d5=) 18...g5 (18...a5 19.ba5 Ra5 20.a3+=) 19.c5 (better is 19.a3!?=) 19...Ba2-/+ 20.b5 Bd5 21.cd6 (21.Ba3 dc5 22.Bc5 Qe6-/+) 21...Qd6 22.bc6 Bc6 23.Qb3 Bd5 24.Bc4 Rec8 (24...Rec8 25.Ba3 Bc4 26.Rc4 Qd5 27.Rc8 Rc8-/+) 0–1. Karlicky,P – Spesny,Jan, Prague Bohemians, 1977. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 c6)

8.d4 Nbd7

9.a4 c5 10.de5 de5 11.Ne5 Ne5 12.Be5 Qd1 13.Rd1 cb4 14.Bd6=.

9.a4 Re8 10.b5 (10.de5 Ne4+=) 10...e4 (10...Qe7 11.Nc3+=) 11.Nfd2 d5 (11...c5 12.a5+=) 12.Nc3+= Nf8 (12...dc4 13.Nc4 Re6 14.Qc2+=) ½–½. Franke,Roland – Eckert,Michael, Bahn–ch Pocking, 1996.

9.Nc3 ed4 10.Nd4 Qe7 11.Qb3=.

9.Nc3 e4 10.Nd2+= Re8 11.Qb3 (11.h3 a5 12.b5 c5+=) 11...h5 (11...Qe7 12.Rae1+=) 12.h3+= a5 (12...Qe7 13.Rfe1+=) 13.Qa3 (13.a3 b6+=) 13...Nf8 (13...Qb6 14.b5 c5 15.Rac1+=) 14.c5+– dc5 15.bc5 Bf5 (15...N8d7 16.Nc4 b5 17.cb6 Nb6 18.Ne5+=) 16.Nc4 Nd5 (16...Ne6!?+–) 17.Nd5+– Qd5 (17...cd5 18.Nd6+–) 18.Nb6 Qe6 (18...Qd8 19.Na8 Qa8 20.Bc3+–) 19.d5 cd5 20.Bg7 Kg7 21.Na8 Bh3?? (21...Ra8 22.Qb2 d4 23.ed4 Qd5+–) 22.Nc7 Qf5 23.Ne8 Kg8 24.gh3 Qh3 25.Qc3 Ne6 26.Nf6 Kf8 27.Nd5 Ng5 28.Qh8 1–0. Vendelo – Kwahili, internet free game, 2018.

9.de5 de5 10.Be5 Ne5 11.Ne5 Qd1 12.Rd1 Nd5 13.cd5 Be5 -/+.

9.de5 de5 10.Ne5 Ne5 11.Be5 Qe7? (11...Bf5 12.Nc3+/–) 12.Bc3 (better is 12.Bd6 Qd8 13.Bf8 Qf8 14.a3+–) 12...Rd8+/– 13.Qb3 Bf5 14.Nd2 Ng4 15.Rad1?? (better is 15.Bg7 Kg7 16.Nf3+/–) 15...Ne3+= 16.Bg7 (16.fe3 Qe3 Double attack) 16...Nf1 17.Qc3?? Nd2 18.Bh8?? f6 19.Bf6 Qf7 20.c5?? Ne4–+ 21.Rd8 Rd8 22.Qe5 Re8 23.Bc4 Re5 24.Bf7 Kf7 25.Be5 Ke6 26.Bb8 a6 27.a4 Kd5 28.f3 Nd2 29.g4 Bd3 30.Kf2 Kc4 31.Ke3 Nf1 32.Kf2 Nh2! 33.Bh2 Kb4 34.Ke3 Bb1 35.Kd4 Ka4 36.f4 Kb3 37.Bg3 a5 38.Be1 a4 39.Bc3 a3 40.g5 Bf5 41.Ba1 Ka2 42.Bc3 Kb1 43.Kc4 a2 44.Kb4 a1Q 45.Ba1 Ka1 46.Ka5 Kb2 47.Kb6 Be4 48.Kb7 Kc3 49.Kc7 Kc4 50.Kd6 Bd5 51.Ke5 Kc5 52.f5 gf5 53.Kf5 Kd4 54.Kf6 Be4 55.Ke7 c5 56.g6 c4 57.g7 Bd5 58.Kd6 c3 (58...c3 59.Kc7 c2 60.Kd7 c1Q 61.g8Q Qc6 62.Ke7 Bg8 63.Kf8 Bd5 64.Ke7 Qc7 65.Ke8 h5 66.Kf8 Qf7) 0–1. nizinna (1615) – lecie (1690), kurnik, 2011.

9.de5 de5 10.Ne5 Ne4 11.f4 Ne5+= 12.fe5 Qd1 13.Rd1 Re8 14.Bf3 Ng5 15.b5 Nf3 16.gf3 Be6 17.bc6 bc6 18.Na3 Rab8 19.Bd4 Rb4 Attacks the isolani on c4 20.c5 Ra4 21.Nc2 Ba2 22.Nb4 Rb4 23.Ra2 Rb7 24.f4 Rd8 25.Ra6 Be5?? 26.fe5+– Rc8 27.Kf2 Kf8 28.Kf3 Ke7 29.Ke4 Ke6 30.Rf1 Rcc7 31.Rf6 Ke7 32.Rfc6 Kd7 33.Rc7 Kc7 34.Rf6 Kd8 35.c6 Rc7 36.Ba7! Ra7 37.Kd5 White prepares e6 37...Re7?? 38.Kd6 Rc7 39.e6 fe6 40.Rf8 1–0. carocan (1730) – mjacek (1660), kurnik, 2011.

9.de5 Ng4 +/–.

8.d4 e4

9.Nfd2 Re8 10.Nc3 d5 11.a4 Qd6 (11...Be6 12.cd5 cd5 13.Nb3=) 12.c5 Qd8 (12...Qe6 13.Rb1+=) 13.b5 h5 (13...Qe7 14.bc6 bc6 15.Ra3=) 14.a5 (14.Qb3 Qc7+=) 14...a6 (14...Bg4 15.Bg4 Ng4 16.h3+=) 15.ba6 Na6 16.Na4 Nd7 (16...Qa5?? 17.Nb6 Qa1 18.Qa1+–) 17.Nb6 (17.Ra3 A) 17...Qa5?? 18.Nb6 Nac5 19.Na8+– (19.dc5?! Qa3 20.Ba3 Ra3+–); B) 17...Qg5+=) 17...Rb8 (17...Nb6 18.ab6 Qg5 19.Kh1=) 18.Nb1 (18.Qb3 Nb6 19.ab6 Qg5+=) 18...Nf6 (18...Nac5!? 19.Nc8 Rc8=+) 19.Nc3 (19.Nc8 Qc8 20.Qc2 Qc7+=) 19...Bf5 (19...Bg4 20.Bg4 Ng4 21.h3+=) 20.Ba3 (20.Qb3 Bg4+=) 20...Nc7 21.Bb4 Na6 22.Rb1 Nh7 (22...Bg4 23.Bg4 Ng4 24.h3+=) 23.Ba6 ba6 24.Qe2 Bg4 (24...h4 25.h3+=) 25.Qa6+– Qg5 26.Ne2 (26.Kh1!?+–) 26...h4+= 27.Nf4 (27.Rfc1 h3 28.Ng3 hg2 29.Kg2 Qh4–+) 27...h3= 28.Na4 (28.g3 Qf5 29.Bc3 Nf6=+) 28...hg2 29.Rfe1 (29.Rfc1 Qf6 30.Bc3 Rb1 31.Rb1 Ng5=+) 29...Qf6=+ 30.Ba3? (30.Bc3 Ng5 31.Kg2 Nh3–+) 30...Rbd8 (30...Ng5 31.Kg2 Nf3 32.h3 Ne1 33.Re1 Bf3 34.Kh2–+) 31.Rb6? (better 31.h3 Bd7 32.Ra1=+ (32.Kg2? g5–+)) 31...Ng5–+ 32.Rc6? (better 32.Rc1 Ra8 33.Qb7 Ra5 34.Rb4–+) 32...Nf3 (better 32...Bh3 33.Ng2 (33.Rf6?? Nf3) 33...Nf3 34.Kf1 Bg2 35.Ke2 Nd4 36.ed4 Qf3 37.Kd2 Qf2 38.Re2 Qd4 39.Kc1–+) 33.Kg2 Ne1 (better 33...Qg5 34.Rg6 fg6–+) 34.Kf1 Be6 (better 34...Qg5!? 35.h4 Qh4 36.Ke1 Ra8–+) 35.Ke1-/+ Qg5 (better 35...Ra8!? 36.Qb5 Bd7 37.Rf6 Bb5-/+) 36.Ne6= (worse 36.Re6 fe6 37.h4 Qf5–+) 36...Qg1? (better 36...fe6 37.Bb4 Rb8=) 37.Qf1+– Qf1 38.Kf1 fe6 39.Nb6 Rf8 (better 39...Re7+–) 40.Re6 Rf7?! (40...Kf7 41.Rc6 Bf6+–) 41.c6 Kh7 (41...Bf8 42.Bf8 Rdf8+–) 42.Re7 (42.Re7 Rf6 43.c7+–) 1–0. tsodikovich (1820) – tpursell (1695), gameknot.com, 2016.

9.Nfd2 Re8 10.Nc3 Bf5 11.Nb3 b6 12.d5 c5 13.b5 a5 14.a4 Nbd7 15.Nd2 Ne5 16.f3 (16.Ra3=) 16...Nd3?? (better 16...ef3 17.gf3 Bh3-/+) 17.Bd3+– ed3 18.e4 Bd7 19.Ndb1 (better 19.Nb3!?+–) 19...Nh5= 20.Bc1 (20.Kh1!?=) 20...Bd4=+ 21.Kh1 Qh4 (better 21...Ng3! 22.hg3 Re5-/+) 22.Qe1= Qe1 23.Re1 f5 24.Ra2 Re5 25.f4 (better 25.Be3=) 25...Re7-/+ 26.Bd2 (26.e5 de5 27.fe5 Re5 28.Re5 Be5-/+) 26...Rf8 27.g3 fe4 (27...Rfe8!? 28.e5 de5 29.fe5 Re5 30.Re5 Be5–+) 28.Re4-/+ Re4 (28...Ref7!?-/+) 29.Ne4= Bf5 (better 29...Nf6 30.Nf6 Bf6=) 30.Nbc3?? (30.Nd6 Bh3+=) 30...Be4 31.Ne4 Re8 32.Nd6 Re2 33.Nc8? (better 33.Ne8–+) 33...Be3 (better 33...Nf6 34.Ne7 Re7–+) 34.d6 Nf6 (34...Bd2 35.d7 Re1 36.Kg2 Re2 37.Kh3 Nf4 38.gf4 Rh2 39.Kg4 h5 40.Kf3 Rh3 41.Ke4 Re3 42.Kd5+–; 34...Rd2?? 35.Rd2 Nf6 36.Rd3+–) 35.Nb6 Rd2 36.Nd5 (36.Rd2 Bd2 37.Kg2 Bf4–+) 36...Ra2 37.Ne3 (37.Nf6 Kf7 38.d7–+) 37...d2 38.g4 (38.d7 Nd7 39.Kg1 Ra1 40.Kf2–+) 38...Ra1 39.Kg2 d1Q (better 39...Ng4 40.Nd1 Rd1–+) 40.Nd1 Rd1 0–1. Vaast,Jean Philippe – Ah Soune,Steeve, Reunion op St Denis, 2008.

9.Nfd2 Bh3 10.gh3 Nbd7 11.Nc3 Qe7 12.a3 h5 (12...d5 13.f3+–) 13.Qc2 g5 (13...d5+–) 14.Nce4 Ne4 15.Qe4 Qe4 (15...Rfe8 16.Qf5+–) 16.Ne4 f5 (16...d5 17.Ng5 dc4 18.Bc4+–) 17.Nd6 Rad8 (17...Rab8 18.f4 Rf6 19.c5 gf4 20.Rf4+–) 18.Nb7 Rde8 19.Nd6 Re6 (19...Rd8 20.c5+–) 20.c5 Rg6 (20...Kh7 21.Bf3 Nb8 22.Bh5+–) 21.Bc4 Kh7 22.Bd3 h4 (22...Rgf6 23.e4 fe4 24.Be4 Kh8 25.Bc6+–) 23.Bf5 Kh6 (23...Rf5 24.Nf5 a6 25.a4+–) 24.Bd7 (24...Rd6 25.cd6+–) 1–0. pcmvr – aliwood, internet, 2005.

9.Nfd2 h5 10.Nc3 Qe7 11.Qb3 Bf5 12.Rae1 Nbd7 13.f3 ef3 14.Bf3 Bh6 15.Kh1 Ng4 The pressure on the backward pawn e3 grows (15...Be3?? 16.Nd1 Ng4 17.Ne3+– (17.Re3?! Ne3 18.Ne3 Bg4+–)) 16.Nce4 Ne3 17.Ng3 Qg5 (better is 17...Bg4+=) 18.Nde4+/– Qe7 (better is 18...Nf1 19.Ng5 Ng3 20.hg3 Bg5+=) 19.Nd6?? (better is 19.Re3 Be3 20.Qe3+–) 19...Qd6= 20.Re3 Be3 21.Nf5 gf5 22.Qe3 Rfe8 (22...Qb4 23.Qg5 Kh8 24.Be2 Qb2 25.Qh5 Kg7 26.Qg5 Kh8 27.Rf3 Qa1 28.Bf1 Qf1 29.Rf1+–) 23.Qc3 Qh6 24.Bc1 f4 25.g3 Re3 26.Be3 fe3 27.b5 Re8 28.bc6 bc6 29.Qd3 c5 (29...h4 30.gh4 Qh4 31.Qe2+=) 30.Be2 cd4 31.Qd4 Qc6 32.Kg1 Nc5? (better is 32...Re5+=) 33.Rf5 Ne4 34.Bh5 Nf2?? (34...Rf8+–) 35.Bf7 Kf8 (35...Kh7 36.Rh5 Qh6 37.Rh6 Kh6 38.Qf6 Kh7 39.Qg6 Kh8 40.Qh6) 36.Be8 (36.Be6 Ke7 37.Rf7 Ke6 38.Qf6) 36...Ke8 (36...Kg8 37.Bc6 Nh3 38.Kg2 e2 39.Qg4 Ng5 40.Qg5 Kh7 41.Rf7 Kh8 42.Qg7) 37.Qe3 (37.Qe3 Ne4 38.Re5 Kd7 39.Qe4 Qe4 40.Re4+–; 37.Qe5 Kd8 38.Rf8 Kd7 39.Rf7 Kd8 40.Qe7 Kc8 41.Rf8 Qe8 42.Re8) 1–0. Zude,E (2395) – Hinrichs,Lars (2205), Politiken Cup, 2015. (=1.Nf3 Nf6 2.c4 g6 3.b4 c6 4.Bb2 Bg7 5.e3 d6 6.Be2 0-0 7.0-0 e5 8.d4 e4)

9.Nfd2 h5 10.Nc3 Bf5 11.a4 Nbd7 12.Qb3 White plans b5 12...Kh7 13.Rfd1 Qe7 14.b5 g5 (14...h4 15.h3+=) 15.a5 a6 16.bc6 bc6 17.Qa4 Rfc8 18.Ba3 h4 19.h3 Bf8 (19...c5 20.Qc2+=) 20.Rdb1 g4 (better 20...c5!? 21.Qc2 Bg7+=) 21.hg4+- Bg4? (21...Ng4 22.Bg4 Bg4 23.Nce4 c5+-) 22.Bg4 Ng4 23.Nde4 Qe6?? (23...c5+-) 24.Ng5 (24.Ng5 Kg7 25.Ne6 fe6 26.Ne4+-) 1-0. jhonores (2220) - Leyendaplazanorte (2175), Hourly SuperBlitz Arena, lichess.org, 2020.

9.Ne1 a5 10.b5 cb5 11.cb5 Nbd7 (11...Be6 12.Nc3+=) 12.Ba3 (12.Nc3 d5+=) 12...Nb6= 13.Nd2 Be6 14.Qb1 Bd5 15.Nc2 Na4 16.Bb2 Rc8 17.Na3 (17.Rc1 Qb6=) 17...Nd7 (17...Qd7 18.Ndc4=) 18.Nac4 Nb2 (18...Nf6 19.Rc1=) 19.Qb2+= Nf6 20.b6 Rc6 21.Rab1 Qa8 22.Qa3 (22.Qb5 Rfc8=) 22...Rfc8 23.Rb5 (23.Nd6? Bf8 24.Rb5 Bd6 (< 24...Rd6 25.Ra5 Qb8 26.Qb2–+) 25.Qa5 Qa5 26.Ra5 Rb6–+; 23.Qa5 Qa5 24.Na5 Rc2-/+) 23...Bc4 24.Nc4 Bf8 25.Ra5 Qb8 26.Qb3 d5+= 27.Ne5 Rc3 28.Qb5 Bd6 29.Ng4 Ng4 30.Bg4 Bh2 31.Kh1 Rd8 32.Qb2 Rc6+= 33.Rc1 Rc1 34.Qc1 f5 35.Bd1+/– f4? 36.Kh2 fe3 37.g3 ef2 38.Bb3 Rf8 39.Rd5 Kh8 40.Qf1 Rf3 41.Re5 e3 42.Bc4 Qc8 43.Be2 Qg4? 44.Bf3 Qf3 45.a4 h5= 46.a5 h4 47.gh4 Qf4 48.Kh3 Qf3 49.Kh2 Qf4 50.Kh3 Qf3 ½–½. Kerzdoerfer,Harry (2060) – Doerfler,Guenther (2045), Regionalliga SO, 1997.

9.Ne1 c5 10.Nc2=.

9.Nfd2 d5

10.a4 Be6 11.b5 Qc8 12.Nc3+= Bg4? (better 12...dc4!? 13.Qc2 Nd5+=) 13.Bg4+– Ng4 14.cd5 cd5 15.Nd5 Nh2?? (better 15...Qd8 16.Ba3 Qd5 17.Bf8 Ne3 18.fe3 Bf8+–) 16.Ne7 (16.Ne7 Kh8 17.Nc8 Nf1 18.Kf1 Rc8 19.Ne4+–) 1–0. GuestVQYP – GuestZQMD, freechess.org, 2018.

10.Nc3 Be6 11.b5 Nbd7 12.a4 a6 13.Qb3 ab5 14.ab5 Qc7 15.c5 b6 16.bc6 Qc6 17.Bb5 Qc7 18.c6 Ra1 19.Ra1 Nb8 20.Qa4 Rc8 21.Rc1 Nc6? (21...h6 22.Ne2=) 22.Nce4 (better is 22.Na2!?+–) 22...de4 23.Rc6 Qb7 24.Qc2 Bd7 25.Rc8 Qc8 26.Qc8 Bc8 27.Bc6 Bf5 28.Nc4 Bd7 29.d5 b5 30.Na5?? (30.Bf6 Bf6 31.Nd6+/– (worse is 31.Bd7 bc4 32.d6 Kf8+=)) 30...Bc6 31.dc6 Nd5 32.Bg7 Kg7 33.Nb3 Kf8 34.Nd4 Nc7 35.Kf1 Ke7 36.Ke2 Kd6 37.Kd2 Kc5 38.Kc3 Kb6 39.Kb4 Nd5 40.Kb3 Nc7 41.Kb4 Nd5 ½–½. Mikhaylov,Dimitri (1815) – Rubtsov,Daniil, St Petersburg RUS, Chigorin Mem, 2013.

10.Nc3 Be6 11.cd5 cd5 12.f3 ef3 13.Bf3 Nc6 14.b5 Nb4 (better 14...Na5!?=+) 15.Be2+– Bf5 16.Rf5! gf5 17.a3 Bh6 18.Nf1 a5 19.Kh1 (19.ab4 ab4 20.Ra8 Qa8+–) 19...Re8 The backward pawn on e3 becomes a target 20.Ng3 Nc6? (better 20...Be3 21.Nf5 Bg5+=) 21.bc6 bc6 22.Nf5 Bf8 (22...Be3 23.Bc1 Bc1 24.Qc1+– (24.Rc1?! Re6+–)) 23.Qe1 Rb8 24.Rb1 Qd7 25.Bd3 Rb3 26.Bc2 Rbb8 27.Qg3 (27.Ne2 Ne4 28.Neg3 Rb6+–) 27...Kh8 28.Qf4 Qe6 29.Na4 Nh5 30.Qh4 Qg6 31.Rf1 Re4 (31...Ng7 32.Rf3 Be7+–) 32.Be4 de4 33.d5 f6 (33...Rb2 34.Nb2 cd5 35.Qd8+–) 34.dc6 Rb5 (34...Rc8 35.g4 Ng7 36.Bf6 Qe8+–) 35.g4 Ng7 36.c7 Rf5 37.Rf5 Nf5 (37...Be7 38.c8Q Qe8 39.Qe8 Ne8 40.g5 Kg8 41.gf6 Bf6 42.Bf6 h6 43.Qg4 Kf7 44.Bh4 Ke6 45.Qe4 Kd7 46.Rf7 Kc8 47.Qe8) 38.c8Q Nh4 (38...Ng3 39.hg3 Kg7 40.Qd7 Kg8 41.Qe6 Kh8 42.Qhf6 Qf6 43.Bf6 Bg7 44.Qe8) 39.Qf8 (39.Qf8 Qg8 40.Bf6) 1–0. Jeremiah – Indoors, internet, 2019.

10.Nc3 Ne8 11.Bg4 (11.cd5 cd5 12.b5 Nf6+=) 11...f5 12.Be2 Be6 13.a4 (13.Qb3 Nc7=) 13...f4= 14.Bg4 (14.cd5 cd5 15.Qb3 Nc7=) 14...Qd7 15.Be6 Qe6 16.cd5 (16.ef4 Rf4 (worse 16...Bd4 17.cd5 cd5 18.Nde4+–) 17.Qe2 Nd6=) 16...cd5 17.Qb3 Nc7 18.ef4 Bd4 (18...Rf4 19.Rae1=+) 19.Ne2 (19.Nd5!? Nd5 20.Bd4+=) 19...Bb2=+ 20.Qb2 Nd7 (20...Qf6 21.Qb3 Nc6 22.Ne4=) 21.Rac1= Rac8 22.Qd4 (22.Qb3 Nb6=) 22...b6 (22...Qb6 23.Nb3=+) 23.Qe3 (23.Rfd1 Nf6=) 23...Na6 (23...Qd6 24.Qb3 Rfe8 25.Rc2=) 24.Rc8 Rc8 25.Qb3 (25.Rb1 Nf6=) 25...Nf6=+ 26.Ng3 (26.Rb1 Qd6=) 26...Kg7 27.Re1 (27.Rb1!?=+) 27...Qd6-/+ 28.f3 (28.b5 Nc5 29.Qc3 Qf4-/+) 28...Qb4 (28...Qf4 29.Qb2 ef3 30.Re7 Kh6 31.Rf7–+) 29.Qb4-/+ Nb4 30.fe4 Nd3 31.Re3 (31.Rd1 Nf4 32.ed5 N6d5–+) 31...Rc1–+ 32.Ngf1 de4 (32...Nf4 33.g3 d4 34.Rb3–+) 33.Ne4 Ne4 (33...Nf4 34.Nf6 Kf6 35.Rf3–+) 34.Re4-/+ Kf6 35.g3 (35.Rd4 Nc5-/+) 35...Nc5–+ 36.Rd4 Ra1 37.Kg2 (37.Kf2 Ra4 38.Ra4 Na4-/+) 37...Ra4 38.Rd8 Ra2 (38...Ra3 39.h3–+) 39.Kh3 (39.Kf3 b5-/+) 39...Ne6 (39...Re2 40.Kg4–+) 40.Rd7 Ra3 (40...h5 41.Nd2 Nc5 42.Rd6 Ke7 43.Rd5–+) 41.Kg2 h5 (41...g5 42.fg5 Ng5 43.g4–+) 42.Nd2 (42.Kf2 b5–+) 42...Nc5 43.Nc4? (better 43.Rd5!?–+) 43...Rg3!! (43...Rg3 44.Kg3 Nd7–+; 43...Nd7?! 44.Na3 a6 45.Kf3–+) 0–1. Djurisic,Dusan (1925) – Vujanovic,Aleksa (1920), Beograd SER, City Team Championship, 2017.

10.Nc3 h5 11.a4 (11.b5 Be6+–) 11...Bg4 (11...Be6 12.Qb3+=) 12.Qb3 White intends b5 (12.Bg4 hg4 13.b5 Qd7+=) 12...Bh6 (12...Be2 13.Ne2 Re8 14.Nc3+=) 13.b5 (13.Bg4 Ng4 14.Rae1 Qd6=) 13...Be2 14.Ne2 Nbd7 15.cd5 (15.Ba3 Re8+=) 15...cd5+= 16.a5 Re8 17.Rfc1 Rc8 18.Rc8 Qc8 19.Nc3 Qb8 (19...Nf8!?+=) 20.Nd5+– Nd5 21.Qd5 Nf6 22.Qb3 Ng4 23.Nf1 Bf8 (23...Qd8 24.a6 b6 25.Rc1+–) 24.h3 Nh6 (24...Nf6!? 25.d5 Qd6 26.Rd1+–) 25.b6+– a6 (25...Nf5 26.Nd2+–) 26.Rc1 Bd6 (26...Rc8 27.Rc8 Qc8 28.Ng3+–) 27.Nd2 Qd8 28.d5 Nf5 (28...Be5 29.Be5 Re5 30.Rc7 Qd5 31.Qd5 Rd5 32.Nc4+–) 29.Rc4 Qh4 (29...Be5 30.Be5 Re5 31.Ne4 Kh7+–) 30.Qa4 Re7 (30...Qd8 31.Ne4 Re4 32.Re4 Ng7+–) 31.Rc8 (31.Rc8 Re8 32.Qe8 Bf8 33.Qf8 Kh7 34.Qh8) 1–0. Pierre – Gargannyi, internet, 2020.

10.Nc3 h5 11.b5 Bg4 12.f3 (12.bc6 bc6 13.Bg4 Ng4+=) 12...ef3 13.Bf3 Bh6 14.Re1 Re8 15.h3 Bf3 16.Qf3 a6 17.a4 (17.bc6 bc6 18.Rad1 Nbd7+=) 17...Nbd7 18.bc6 bc6 19.cd5 cd5 20.Nf1 (20.Rac1 Rb8 21.Ba3 Qa5=) 20...Nb6 (20...Rb8 21.Bc1 Ne4 22.Ne4 (22.Nd5? Qa5-+) 22...de4 23.Qe2=+) 21.e4 (21.Nd2 Qd6=) 21...Nc4 (21...de4!? 22.Ne4 Ne4 23.Re4 Qd5 24.Re8 Re8=+) 22.e5+= Ne4 23.Bc1 Bc1 24.Rac1 Nc3 25.Rc3 Rc8 26.Ne3?? (better 26.Rec1+=) 26…Nd2 (26...Nd2 27.Qf2 Rc3 28.Qd2 Rb3-/+) 0-1. Sarkar,J (2375) - Diaz Perez,Michel Alejandro (2455), Titled Tuesday, 2020.

7.0-0 Nc6

8.a3 e4 9.Nd4=.

8.Qb3 Bg4 9.h3 Bf3 10.Bf3 Rb8 (10...e4 11.Be2=) 11.a4 (11.Nc3 a6+=) 11...Nd7 (11...e4 12.Be2=) 12.b5 Ne7 13.d4 f5 14.c5 Kh8 15.cd6 cd6 16.Ba3 ed4 17.Bd6 de3 18.Ra2 ef2 (18...Ne5 19.Rd1 Nf3 20.gf3=) 19.Raf2 (better 19.Kh1+=) 19...Rc8 (19...Bd4 20.Qb4 Bf2 21.Rf2=) 20.Bb7 (20.Qb4 a5 21.ba6+/- (21.Be7 ab4 22.Bd8 Rcd8-/+)) 20...Nc5= 21.Bc5 Rc5 22.Kh1 Qb6 23.Bf3 a6 (23...f4 24.Be4=) 24.Re2 Nc8 (24...Nc6 25.Bc6 Rc6 26.Rfe1=) 25.Na3 (25.Re6 Nd6 26.Rd1 Be5+-) 25...ab5 (25...Rc3 26.Qa2=+) 26.Nb5 Nd6 (26...Re5 27.Re5 Be5 28.Re1+=) 27.Re6+= Rd8? (better 27...Qb8 28.Rd6 Rb5 29.ab5 Qd6+=) 28.Rd1 (28.Rb1 Be5+-) 28...Qb8 (28...Re5 29.Re5 Be5+=) 29.Nd6?? (better 29.Qd3 Rb5 30.ab5+- (30.Rd6?! Rd6 31.Qb5 Rd1 32.Bd1 Qb5 33.ab5 Bd4=)) 29…Rd6 1-0. carlos78 (2290) - philsals (1980), Rated Blitz game, lichess.org, 2015.

8.b5 b6 9.h3 Bb7 10.a4 c5 11.d4 ed4 12.ed4 Ne4 13.Qc2 d5 14.cd5 Bd5 15.dc5 Bb2 16.Qb2 Ndc5 17.Rd1 Qf6 18.Qf6 Nf6 19.Nc3 Be6 20.Ng5 Rfd8 21.Ne6 Ne6 22.Bf3 Rac8 23.Rd8 Rd8 24.Ne4 Ne4 25.Be4 Rd2 26.a5 Nc5 27.Bc6 Nd3 28.ab6 ab6 29.Ra6 Nb4 30.Rb6 Nc6 31.bc6 Rc2 32.Rb8 Kg7 33.Rc8 Kf6 34.c7 Ke7 35.Rh8 Kd7 36.Rh7 Kc7 37.Rf7 Kd8 38.Rf6 Ke7 39.Rg6 Kf7 40.Rg5 Kf6 41.h4 Rc1 42.Kh2 Rc2 43.f4 Rc4 44.g3 Rc2 45.Kh3 Rc3 46.Kg4 Rc4 47.h5 Re4 48.Rg6 Kf7 49.Kg5 Ra4 50.g4 Rb4 51.f5 Rb5 52.h6 1–0. Abdullaevich (1870) – wow2 (1830), lichess.org, 2019.

8.b5 c5 9.a4 a5 10.h3 Nb6 11.Qc2 Bf5 12.d3 Re8 13.e4 Bd7 14.Nc3 Nh5 15.Nd5 Nd5 16.cd5 Nf4 17.Nh2 Qg5 18.Kh1 Bh3 19.gh3 Nh3 20.Bg4 Qh6 21.Bc1 g5 22.Qe2 Nf4 23.Qf3 Ng6 24.Qf5 Nh4 25.Qg5 Qg5 26.Bg5 Ng6 27.Bf5 h6 28.Be3 Nh4 29.Bg4 Kh8 30.Rg1 Rg8 31.Rg3 Bf8 32.Rag1 Ng6 33.Bf5 Kh7 34.Nf3 Rc8 35.Nh4 Rc7 36.Ng6 fg6 37.Rg6 Rg6 38.Rg6 Kh8 39.Bh6 Bh6 40.Rh6 Kg7 41.Rh7 1–0. Abdullaevich (1840) – SchachHolzig (1835), lichess.org, 2019.

8.b5 e4 9.bc6+– ef3 10.Bf3 bc6 11.Bc6 Rb8 12.Bd4 d5? (12...Bd7 13.Qf3+–) 13.Qa4 (better 13.Ba7!? Rb4 14.Nc3 Rc4 15.Bb5 Rc3 16.dc3+–) 13...dc4+– 14.Ba7 Nd5 (14...Nd7 15.Bb8 Ba1 16.Ba7+–) 15.Bb8 Ba1 16.Na3 Nb6 17.Qa5 Qf6 (17...Bb2!? 18.Nb5 Qf6 19.Bc7 Qc6 20.Qb6 Qb6 21.Bb6 Bf5+–) 18.Bc7 c3?? (18...Qc6 19.Qb6 Qb6 20.Bb6 Bg7 21.Nc4 Be6+–) 19.Qb6 (19.Ra1 cd2 20.Rf1 Qc6 21.Qb6 Qb6 22.Bb6 Ba6+=; worse 19.Bb6 Bb2 20.Bc5 Qc6 21.Bf8 Kf8 22.Qb4 Kg8+–) 19...cd2 20.Nb1 Bc3 21.Bf3 Be6 22.a4 Bc4 (22...h6 23.Qc5 Bb2 24.Nd2+–) 23.Qf6 (better 23.Rd1 Rc8 24.Qc5 Bb3 25.Nc3 Qd8+–) 23...Bf1 1–0. GuestJDHB – GuestXZSK, freechess.org, 2017.

8.d3 Nb4-/+ 9.Qb3 Nc6 10.Nc3 Kh8 (10...Nd7 11.Nd5-/+) 11.d4=+ e4 (11...ed4 12.ed4 Re8 13.Rfe1=+) 12.Nd2 Bf5 (12...Re8 13.d5 Na5 14.Qc2=) 13.Qc2 e4 seems the pivot of the position (13.Nd5 Rb8=+) 13...Re8 14.d5 Ne5 (14...Nb4 15.Qb3 a5 16.Ba3=+) 15.Nce4 Ne4 (15...c6 16.dc6 Ne4 17.Ne4 bc6 18.Rad1=+) 16.Ne4= Nc4 (16...Qh4 17.f3=) 17.Bc4 (17.Bg7 Kg7 18.Qc3 f6 19.Nf6 Qf6 20.Qc4 Re7+=) 17...Be4 (worse 17...Re4 18.Bd3 Re7 19.Bf5 gf5 20.Rab1+–) 18.Bg7 Kg7 19.Qc3 (19.Qb2 Kg8 20.Qb7 Qg5=+) 19...f6 (19...Qf6 20.Rfc1=+) 20.Rad1 Qd7?? (better 20...a6=+) 21.f3+– Bf5 (21...Bd5 22.Bd5 c6 23.Bb3+–) 22.e4 Be4 (22...c5 23.Rb1 a6 24.a4+–) 23.fe4 Rf8 (23...Re5 24.Rb1 c5 25.dc6 Qc6 26.Qb2 Qc5 27.Kh1+–) 24.Rd3 (24.Bd3 c6+–) 24...Rae8 25.Rdf3 (25.Rb1 Qc8 26.Rd4 Re7+–) 25...Qe7 (better 25...Re5+–) 26.e5 (better 26.Bd3+–) 26...de5 27.Bb5 (27.Kh1 a6+–) 27...Rd8+= 28.a4 (28.Rd3 Qd6 29.Ba4 b5+=) 28...Qd6 (better 28...Rd5!? 29.Rc1 c6=+) 29.Bc4+= Rf7 30.Qa5 a6 31.Qd2?? (31.Rb1 b5 32.Ba2 ba4+–) 31...e4?? (better 31...Qc5 32.Qf2 Qc4 33.Rf6 Qf1 34.Qf1 Rf6–+) 32.Re3+= f5 (32...b5 33.ab5 ab5 34.Ba2+=) 33.Qd4 (33.Qb2 Qf6 34.Qb7 Qd4+–) 33...Kg8+= 34.g4 Re8 (34...c5!? 35.Qb2 Rdd7+–) 35.gf5+– gf5?? (better 35...c5 36.Qb2 Re5+–) 36.Rg3+– Kf8 37.Qh8 (better 37.Rf5! Qg3 38.hg3 Rf5 39.d6 cd6 40.Qh8 Ke7 41.Qh7 Kf6 42.Qf7 Ke5 43.Qe8 Kd4 44.Qe7+–) 37...Ke7=+ 38.Rg8?? (better 38.Qd4 Kd8 39.Rb3=) 38...Rg8–+ 39.Qg8 Qc5 40.Rf2 (40.Kg2 Qc4 41.Rf5 Qc2 (41...Rf5? 42.d6 Kd6 43.Qc4+–) 42.Kg3 Qc3 43.Kh4 Qg7 44.Rf7 Qf7–+) 40...Qc4 41.Qg5 Kd6 42.Qh6 (42.a5 Qd4 (42...Qd5?! 43.Rd2 c6 44.Qd8 Ke6 45.Rd5 cd5 46.Qe8 Re7 47.Qg8 Ke5 48.Qh8 Ke6 49.Qg8 Kd6 50.Kg2=) 43.Kf1 Qa1 44.Ke2 f4 45.Rf4 Qb2 46.Ke3 Qc1 47.Ke4 Rf4 48.Qf4 Qf4 49.Kf4 Kd5–+) 42...Kc5 (42...Kd5 43.Qd2 Ke6 44.Kh1–+) 43.Qe3 Qd4 (43...Kd5 44.Qd2 Ke5 45.a5–+) 44.Qa3?? (44.Rc2 Kd5 45.Rd2 Rg7 46.Kf2 c5 47.Rd4 cd4=) 44...Kd5 (better 44...Kc4 45.Qa2 Kb4–+) 45.Qa2 Ke5 (better 45...Qc4 46.Rd2 Kc5=) 46.Qf7+– Qd1 47.Kg2?? (better 47.Rf1 Qg4 48.Kh1+–) 47...Qg4= 48.Kf1 Qd1 49.Kg2 Qg4 (49...Qa4?? 50.Qf5 Kd4 51.Rd2 Kc3 52.Qf2+–) 50.Kh1 Qd1 51.Kg2 ½–½. Markzela (1760) – Maxiaus (1995), lichess.org, 2020.

8.a3 a5

9.b5 Nb8 10.Nc3 Nbd7 11.d4 b6 12.d5 Nc5 13.Na4 Na4 14.Qa4 Nd7 15.Qc2 Nc5 16.Nd2 f5 17.f4 ef4 18.ef4 Re8 19.Bf3 Bd7 20.Bg7 Kg7 21.Nb3 Nb3 22.Qb3 Qf6 23.Rae1 Qd4 24.Kh1 Qf4 25.c5 Re1 26.Re1+= Re8 27.Qc3 Re5 28.cd6 cd6 29.h3 Kh6 30.Rd1 Re3 31.Qc7 Rf3 32.Qd7 Rf1 33.Rf1-/+ Qf1 34.Kh2 Qf4 35.Kh1 Qf1 36.Kh2= Qf4 37.Kg1?? Qe3 38.Kh1 Qc1 39.Kh2-/+ Qf4 ½–½. orangutanb4 (2035) – szachmatek123 (1760), kurnik, 2011.

9.b5 Nb8 10.Nc3 Nbd7 11.h3 Nc5 12.d4 ed4 13.ed4 (worse is 13.Qd4 Nfe4 14.Qg7 Kg7 15.Ne4 f6 16.Nc5 dc5–+) 13...Nce4 14.Qc2 Nc3 15.Bc3 Bf5 16.Qd2 Ne4 17.Qe1 Nc3 18.Qc3 Re8 19.Bd3 Qf6 20.Bf5 Qf5 21.Rae1 b6 22.Qd2 h6 23.Re3 Re3 24.Qe3 Qd7 25.Re1 Kf8 26.Qe4 Re8 27.Qd5 Re1 28.Ne1 Qe6 29.Qa8 Qe8 30.Qe8+= Ke8 31.Nc2 Kd7 32.Kf1 d5 33.c5 Bf8 34.c6 Ke6 35.a4 f5 36.Ke2 g5 37.Kd3 f4 38.Ne1 Kf5 39.Nf3 Bd6 40.h4 g4 41.Nd2 h5 42.Nb1 Be7 43.Nc3 Ke6 44.Ne2 Kf5 45.g3 Bd6 46.gf4 Bf4 47.Ng3 Kg6 48.Ne2 Kf5 49.Nc3 Ke6 50.Ke2 Bd6 51.Kf1 Be7-/+ 52.Kg2 Bh4 53.f3 Bf6 54.fg4 hg4 55.Ne2 Kf5 56.Kg3 Be7 57.Nc3 Bd6 58.Kg2 Ke6 59.Ne2= Bb4 60.Nf4 Kd6 61.Kg3 Bc3 62.Ne2 Bb2 63.Kg4 Ke6 64.Kg5 Kd6 65.Kf6 Ba1 66.Kf7 Bb2?? 67.Ke8+– Ba1 68.Kd8 Bb2 69.Ng3 Bd4 70.Nf5 Ke5 71.Ne7 Ke4 72.Kc7 Be5 73.Kb6 d4 74.c7 Bc7 75.Kc7 d3 76.b6 d2 77.b7 d1Q 78.b8Q Qc2 79.Nc6 (79.Nc6 Qa4 80.Qe8 Kf4 81.Qe5 Kg4 82.Kb6+– (82.Na5?! Qf4 83.Qf4 Kf4=)) 1–0. orangutanb4 (2025) – szachmatek123 (1775), kurnik, 2011.

9.b5 Ne7 10.Nc3 b6 (10...Re8 11.d4 ed4 12.Nd4+=) 11.d4 Nd7 12.Qc2 Bb7 13.Rad1 Qe8 (13...ed4 14.ed4 Re8 15.Rfe1+=) 14.d5 (14.de5 de5 15.Rd2 Nc5+/-) 14...h6 15.Ne4 f5 16.Ned2 Nc5 17.Nb3 Ne4 18.Nfd2 Nf6 19.f4 Nd7 (19...a4 20.Nc1+=) 20.Nf3 Nc8 21.Rde1 (21.fe5 Ne5 22.Nfd4+/-) 21...Nc5? (better 21...a4!? 22.Nc1 e4 23.Bg7 ef3 24.Bf8 fe2 25.Re2 Qf8+=) 22.Nc5+- bc5 23.fe5 de5 24.Bc3 (24.e4 f4+-) 24...Nd6 (24...e4 25.Bg7 Kg7 26.Nd2+/-) 25.Qb2+- Nf7 26.Qd2 (26.Bd3 Bc8+-) 26...a4 (26...Nd6 27.Qc1+/- (27.Ba5? Ne4 28.Qc1 Ra5-+)) 27.Nh4 (27.Qb2 Bh8+/-) 27...Kh7 (27...Nd6 28.Qc2+/-) 28.g4 Qe7 29.Nf3?? (29.gf5 Qg5 30.Kh1 Qh4 31.fg6 Kh8 32.gf7 (32.Rf7?! Rf7 33.gf7 Qe4 34.Kg1 Qg6 35.Kf2 Qf7 36.Kg1 Qg6 37.Kh1 Qe4 38.Kg1 Qg6 39.Kh1 Qe4 40.Kg1 Qg6=) 32...Qe4 33.Bf3 Qc4 34.Bg2+-) 29...e4?? (better 29...fg4 30.Ne5 Ne5-+) 30.Bg7+= Kg7 31.gf5?? (better 31.Qc3 Kg8 32.Nd2+=) 31...ef3-/+ 32.Rf3 Qg5?? (better 32...Ne5 33.Rf4 Rf5 34.Rf5 gf5-/+) 33.Rg3= Qf5 34.Bd3 Qe5 35.Bg6 (35.Rg6 Kh8 36.Qf2 Rae8=) 35...Kh8 (35...Ng5 36.Bh5=+) 36.e4 Rg8 (better 36...Ng5!? 37.Qe3 Rf4-/+) 37.Ree3 (37.Ree3 Ng5 38.Bf5=+). carlos78 (2210) - LookYourKing (2075), Rated Blitz game, lichess.org, 2014.

9.b5 Ne7 10.d3 Nd7 11.Nc3 Nc5 12.Nd2 b6 (12...Qd7 13.Qc2+=) 13.a4 f5 14.Nd5 (14.Nb3!?+=) 14...Bb7 15.Ne7 Qe7 16.d4 ed4 17.ed4 Ne4 18.Bf3 (18.Ne4 fe4 (18...Qe4?? 19.Bf3+-) 19.Qb3 Qg5=) 18...g5 (18...Qh4 19.Nb3=) 19.Re1 Rae8 (19...Qf6 20.Qc2 (20.Ne4? fe4 21.Be2 Qf2 22.Kh1 e3-+) 20...Rae8 21.Bh5+=) 20.Rb1 (20.Bh5 Rd8 21.f3 g4 22.fe4 Qh4+/-) 20...d5 (20...Qd7 21.Bh5 Re7 22.Ne4 Be4 23.Rc1+=) 21.cd5 (21.Bh5 Qb4 22.Be8 Qd2 23.Qd2 Nd2+/-) 21...Bd5+= 22.Ne4 (22.Qc1!? Qd7 23.Ba3+=) 22...fe4= (worse 22...Be4 23.Bh5 Qd8 24.Be8 Bb1 25.Bc6+- (worse 25.Qb1 Re8 26.Re8 Qe8+/-)) 23.Bg4 Qf6 24.Qd2 Qg6 (24...Rd8 25.Rbc1 Qf4 26.Qe2=) 25.Rbc1+= h5 (25...Rf4 26.Bd7 Ref8 27.Re2+=) 26.Bd7 Re7 27.Bc6 (worse 27.Rc7 Qd6 28.Rec1 Rd7=+) 27...Bc6 (27...Rd8 28.Qe3 Qf6 29.Bd5 Rd5 30.Re2+=) 28.Rc6 (better 28.Ba3 Rff7 29.Be7 (29.bc6?! Re8+=) 29...Bb5 30.Rc7 Ba4 31.Rc8 Kh7 32.Bg5+-) 28...Qf5? (28...Rf6 29.d5 Rc6 30.dc6 Bb2 31.Qb2+/-) 29.d5?? (better 29.Ba3 Rd7 30.Bf8 Rd4 31.Qe3+-) 29...Ref7 (29...Bb2!? 30.Qb2 Qd5+=) 30.Bg7+/- Kg7 31.d6 (31.Re2 Rd7 32.Qc3 Kg8+/-) 31...cd6 32.Rd6 (better 32.Re2!?+/-) 32...Qf2= 33.Qf2 Rf2 34.h4 (34.Rd7 Kg6 35.Rd6 R2f6 36.Rf6 Kf6 37.Re4 Rc8=+) 34...g4 (34...Ra2 35.Re4 Rff2 36.g4=+ (worse 36.Rb6 Rg2 37.Kf1 Rgf2 38.Kg1 Rfb2-/+)) 35.Re4 (35.Rb6 Ra2 36.Rb7 Kg6 37.Rb6 Kg7 38.Re4 Rff2 39.Re7 Kf8=) 35...Rf1 (35...g3!? 36.Rd7 Kh8=) 36.Kh2+= R8f2? (36...R8f6!? 37.Re7 Kg6+=) 37.Re7 (37.Rb6!? Ra2 38.Rc4 Rf3 39.Rc7 Rf7+/-) 37...Kf8? (better 37...Rf7 38.Ree6 R1f6 39.Rb6 Re6 40.Re6 Rf4+/-) 38.Rb7 (38.Rb7 Rf7 39.Rd8 Kg7 40.Rb6+-) 1-0. Seppo (2360) - carlborz (2025), Rated Bullet game, lichess.org, 2014.

8.a3 Ne7

9.Qb3 Ne4 (9...e4 10.Nd4=) 10.Nc3 Nc3 11.dc3 (11.Qc3 Re8+=) 11...Be6 12.Rad1 b5 13.a4 a6 14.Ng5 bc4 15.Qa2 d5 16.Bc4 c6 17.Ne6 fe6 18.Be2 Nf5 (18...a5 19.b5+=) 19.c4 (19.e4 Ne7+=) 19...Qg5= 20.f4 ef4 (20...Qe7 A) 21.fe5? Ne3 (21...Qb4?! 22.cd5 ed5 23.Bd4=+) 22.Qb3 Qg5-+ (worse 22...Nd1 23.Rd1 Rab8 24.Qh3-+); B) worse 21.Be5 Ne3 22.Bg7 Kg7-/+; C) 21.Qb3=) 21.ef4+= Qe7 22.Bg7 Kg7 23.b5?? (better 23.Qb2 Qf6 24.Qd2+=) 23...ab5 24.cb5 (24.Qb2 Kg8 25.ab5 Ne3-/+) 24...cb5 25.Bb5 Qc5?? (better 25...Ne3-+) 26.Kh1 Qb5?? (better 26...Ne3 27.Qb2 Kg8=+) 27.Qa1+/- (27.ab5?? Ra2 28.Rfe1 Kf6-+) 27...d4 28.ab5 Ra1 29.Ra1 Ne3 (29...Kf6 30.Rfb1 Rb8 31.Ra4+-) 30.Rf3 (30.Rfb1!? d3 31.Rb3 Rd8+-) 30...Rb8+/- 31.Rb1 Kf6 32.h3 (32.b6 Rb7+/-) 32...Kf5 33.Kg1 Ke4 34.Kf2 (34.b6+/-) 34...Nf5? (34...Ra8 35.Kg3 Ra2 36.Re3 de3+/-) 35.g4 (35.b6 Ne3+-) 35...Nh4 (35...Ne3 36.Rb3+/-) 36.Rfb3 (better 36.Re1 Kd5 37.Ra3 Rb5 38.Ra4+-) 36...Kf4+/- 37.b6 e5 38.b7 e4 39.Ra3 e3 40.Ke2 Ke4 41.Rb4 Ng2 42.Ra8 Nf4 43.Ke1 (43.Kd1!? Rb7 44.Rb7 Nh3+-) 43...Nd3 44.Ke2 Nf4 45.Ke1 (45.Kd1!? Rb7 46.Rb7 Nh3+-) 45...Nd3 46.Kd1 Nf2 47.Ke2 Rb7 48.Re8 Kf4 49.Rd4 (49.Rf8 Kg3 50.Rf3 Kg2 51.Rb7 Nh3 52.Rh3 Kh3 53.Rh7 Kg3+-) 49...Kg5 (49...Kg3 50.Re3 (50.Ke3?! Nh3 51.Kd2 Rb2 52.Kc3 Rf2=) 50...Kg2 51.Rd2+-) 50.Re5 (50.Re3 Rb2 51.Kf1 Ra2+-) 50...Kh4 51.g5 (51.Re3 Nh1+-) 51...Kh3+/- 52.Re3 Kg2 53.Rh4 (53.Rf4 Rb2 54.Ke1 Rb1 55.Kd2 Rb2 56.Kc1 Ra2+/-) 53...Rb2 54.Ke1 Rb1 55.Kd2 Rb2 56.Kc1 Rb7 (56...Rb5 57.Rf4 Rc5 58.Kd2+=) 57.Kc2 (57.Rf4!? Rb2 58.Rf6+/-) 57...Rc7 58.Kb3 Rb7 (58...Rc5!?+=) 59.Kc4+/- Rf7 60.Kd5 Rf5 61.Re5 Re5 62.Ke5 h6?? (better 62...Kg3 63.Rh7 Ng4 64.Ke4 Nf2 65.Kd4 Kg4+=) 63.gh6+- Kg3 64.h7 (64.Rd4 Ng4 65.Rg4 Kg4 66.h7 Kh3 67.h8Q Kg2 68.Qa8 Kf2 69.Ke4 Kg3 70.Qg8 Kg2 71.Qg6 Kf2 72.Kf4 Ke2 73.Qc2 Ke1 74.Ke3 Kf1 75.Qf2) 64...Kh4 65.h8Q Kg5 (65...Kg3+-) 66.Qf6 Kg4 (66...Kh6 67.Qf2 Kg7 68.Qf6 Kh6 69.Qf8 Kh5 70.Qf3 Kh4 71.Kf4 g5 72.Kf5 g4 73.Qg4) 67.Qf2 (67.Qf2 g5 68.Qg2 Kh5 69.Kf6 Kh4 70.Kf5 g4 71.Qg4) 1-0. carlos78 (2140) - mehdi56 (1865), Rated Blitz game, lichess.org, 2015.

9.Nc3 h6 (9...e4 10.Ne1=) 10.d3 (10.d4 ed4 11.Nd4 Nf5+=) 10...Nh5 (10...a5 11.d4 ed4 12.Nd4+=) 11.Qb3 (11.d4 a5+=) 11...c6 (11...a5 12.Rfd1+=) 12.d4 (12.Rad1 Nf6+=) 12...Qc7 (12...ed4 13.Nd4 Nf4 14.ef4 Bd4 15.Rad1+/–) 13.Rac1 (13.Ne4 Bg4+=) 13...Be6 (13...Nf6 14.Rfd1+=) 14.de5 de5 15.Nd5 Qd8 (15...Bd5 16.cd5 e4 17.Nd4+/–) 16.Ne7 Qe7 17.Ne5 Be5 18.Be5 Bc4 19.Bc4 (19.Qc4 Qe5) 19...Qe5 20.f4 (20.Rfd1 Nf6+/–) 20...Qe7 (20...Qe4 21.f5+=) 21.Rf3 (21.f5 Kh7+=) 21…Nf6 22.Qc2 (22.f5 g5+=) 22...Ne4 (22...Kg7 23.f5+=) 23.f5 g5 (23...gf5 24.Rf5 Rae8 25.Rf3+=) 24.f6+/– Qe5 25.Rcf1 (25.Rh3 Kh7+/–) 25...Rac8 (25...Rfe8 26.Qa2 Nd6 27.Rd1 Nc4 28.Qc4=) 26.h4 (better is 26.Rf5!? Qe8 27.Rd1+–) 26...Ng3?? (better is 26...Rcd8=) 27.Qg6 (27...Kh8 28.Qg7) 1–0. Margraf,A – Weinrich, tt Tirol, 1993.

9.d4 e4 10.Nfd2 d5+=.

8.Qb3 h6

9.Nc3 Be6 10.a4 Kh7 11.a5 a6 12.Qa4 d5 13.b5 ab5 14.cb5 Ra5 15.Qc2 (15.Qh4 Ra1 16.Ra1 Ne7 17.Ne5 Nf5=) 15...Ra1 16.Ra1 Ne7 17.Ne5 Ne4 18.Ne4 de4 19.d4 (19.Qe4? Qd2 20.Ng6 Ng6 21.Bg7 Kg7–+) 19...ed3 20.Bd3 Bf5 21.e4 Be6 22.Rd1 Nc8 23.Nf3 Bb2 24.Qb2 f5 (better is 24...Qe7!?+=) 25.Qc2+/– Nd6 26.e5 Nc8? 27.Bf5+– Bf5 28.Rd8 Rd8 29.Qc7 Rd7 30.Qc1 Nb6 31.h3 Be4 32.Qc5 Nd5 33.Nd4 Nf4 34.Ne6 Ne6+= 35.Qc8 Rd1 36.Kh2 Bd5 37.b6 g5?? 38.Qd7 Kg6+= 39.Qe8 Kf5 40.Qh8 Nf4 41.e6 Ng2?? 42.e7+– Nf4 43.Qf8 Ke6 44.e8Q 1–0. orangutanb4 (2020) – dors (1815), kurnik, 2011.

9.Nc3 Be6 10.d4 ed4 11.ed4 d5 12.c5 Ne4 13.Rad1 Qd7 14.Bb5 (14.Ne4 de4 15.d5 Bb2 16.de6 (worse is 16.Qb2 Bd5 17.Nd4 Rfd8+=) 16...Qe6 17.Qb2 ef3 18.Bf3+/–) 14...Rae8 (better is 14...a6 15.Be2 Rad8=) 15.Ne5+/– Be5 16.de5 Nc3 17.Qc3 Qe7 18.Bc6 bc6 19.Qd4 Rb8 20.a3 a5 21.Bc1 Kh7 22.Qd2 Qh4 23.g3 Qh5 24.ba5 (24.Qc3 ab4 25.ab4 Bh3+=) 24...Rb5 25.Qc3 Bf5 26.f3 Rfb8? 27.g4+– Bg4 28.fg4 Qg4 29.Qg3 Qh5? 30.Rf7 Kg8 31.Rf6 g5?? 32.Qf3 Qh4 33.e6 Rb3 34.Qg2 Rh3 35.e7 (35.e7 Re8 36.Rc6+–) 1–0. orangutanb4 (1985) – dors (1850), kurnik, 2011.

9.Nc3 Be6 10.d4 ed4 11.Nd4 Nd4 12.ed4 d5 13.c5 c6 14.b5 Ne4 15.Rad1 f5 16.a4 Qh4 17.f3 Ng3 (17...Nf6!?=) 18.hg3+/– Bd4 19.Rd4 Qd4 20.Kh2 f4 21.g4 Rf7 22.Ne4 (22.Qc2 Qf6+/–) 22...de4 23.Qe6 (23.Bd4? Bb3 24.fe4 Rd8–+ (24...Ba4?! 25.bc6 bc6 26.Bc4-/+)) 23...Qb2 24.Bc4 (24.Qg6?! Qg7 25.Qe4 cb5 26.ab5 Rc7+=) 24...ef3?? (better is 24...Qg7 25.bc6 bc6 26.fe4 g5+–) 25.Qf7+– Kh8 26.Rf3 Rd8 (26...Qg7 27.Rf4 cb5 28.Qg7 Kg7 29.Rf7 Kh8 30.Bb5 Rb8+–) 27.Qf4 (27.Qf4 Qg7 28.Qe4 Qc7 29.g3+–) 1–0. orangutanb4 (1960) – dors (1875), kurnik, 2011.

9.Nc3 Be6 10.d4 ed4 11.Nd4 Nd4 12.ed4 Bf5 13.Bf3 c6 14.b5 Qc7 15.Rad1 White plans d5 15...Rfe8 16.Ba3 Ne4 17.Ne4 Be4 18.Be4 Re4 19.d5 c5 20.f3 Re2 21.Rfe1 Rae8 22.Re2 Re2 23.Kf1 Qe7 24.Bc1?? Bd4–+ 25.a4 Rf2 26.Kg1 Rb2 27.Kh1 Rb3 28.Bh6 Rd3! 29.Rf1 Qe2 30.Rb1 Be3 31.Be3–+ Rd1 32.Rd1 Qd1 33.Bg1 Qa4 0–1. orangutanb4 (2000) – agnelo (1755), kurnik, 2011.

8.b5 Na5

9.Bc3 c6 10.Na3 Ne4 11.Bb4 c5 12.Ba5 Qa5 13.Nc2 Bg4 14.h3 Bf3 15.Bf3 Qb5 16.cb5 1-0. fantantric (1680) – Hungria, Rated Classical game, lichess.org, 2014.

9.Nc3 b6 10.Nd5 a6 11.a4 Bb7 12.Nc3 ab5 13.ab5 Bf3 14.Bf3 Nc4 15.Ba8 Nb2 16.Qb1 Nc4 17.Qc1 Na5 18.Bf3 Nb3 19.Qb2 Na1 20.Ra1 Qd7 21.Bc6 Qe6 22.e4 Qc4 23.Qa3 Bh6 24.Nd5 Nd5 25.ed5 Bd2 26.h3 Bc3 27.Rc1 Qb4 28.Rc3 Qa3 29.Ra3 Re8 30.f3 Re7 31.Ra8 Kg7 32.Ra4 f5 33.g3 e4 34.fe4 fe4 35.Kf2 e3 36.Ke2 h5 37.Ra3 g5 38.Re3 Re3 39.Ke3 Kf6 40.Kf3 Kf5 41.Bd7 Ke5 42.Bc6 Kf5 43.g4 hg4 44.hg4 Ke5 45.Bb7 Kf6 46.Ke4 Kg6 47.Bc8 Kf6 48.Be6 Kg6 49.Bd7 Kf6 50.Be8 Ke7 51.Bg6 Kf6 52.Bf5 Ke7 53.Be6 Kf6 54.Ke3 Ke5 55.Kf3 Kf6 56.Ke4 Kg6 0–1. axtur777 – Svyatosha163, lichess.org, 2019.

9.Nc3 Bg4 10.Qa4 c6 (10...c5 11.Nd5=) 11.h3 (11.d4 cb5 12.cb5 e4+=) 11...Bd7 (better 11...Be6+=) 12.c5 (better 12.d4 ed4 13.Nd4+=) 12...e4-/+ (worse 12...dc5 13.Ne5 cb5 14.Nb5=) 13.Ng5 (13.Ne4? Ne4 14.Bg7 Nc5–+) 13...d5 14.h4 (14.f3!? h6 15.fe4 hg5 16.ed5 Nd5 17.Nd1–+) 14...h6–+ 15.Nh3 Bh3 (15...cb5!? 16.Bb5 Nc4 17.Qc2 Nb2 18.Qb2 Bh3 19.gh3–+) 16.gh3-/+ Nh5 (16...Nd7!? 17.Qb4 Ne5-/+) 17.Rab1=+ Nc4 (17...Kh7 18.d3 ed3 19.Bd3=+) 18.Bc4= dc4 (18...Bc3 19.Bc3 (worse 19.dc3 dc4 20.Qc4 Qh4=+) 19...dc4 20.bc6 bc6 21.Qc4 Qh4 22.Kh2+=) 19.Ne4 (19.bc6 bc6 20.Ne4 Qh4 21.Bg7 Kg7 22.Qc6 Qh3+=) 19...Bb2= 20.Rb2 Qh4 21.bc6 (21.Qc4 Qh3 22.Rfb1 cb5 23.Rb5 b6 24.cb6 ab6 25.Rb6 Qg4 26.Kf1 Rac8+–) 21...Qe4= 22.cb7 Rab8 (22...Rad8 23.c6 (worse 23.Qa7 Rd5 24.f4 Ng3-/+) 23...Rd5 24.f4=+ (24.Qa7 Rg5 25.Kh2 Qg2)) 23.c6 Qe5 (23...Qh4!?=) 24.Rb5 Qc7 25.Qc4 Nf6 (25...Rfd8!? 26.d4 Nf6+–) 26.Rc1+– a6 (26...Ne8!? 27.Qf4+–) 27.Rb4 Ne8 28.Qa6 Nd6 0–1. GuestXBBF – NemDodona, freechess.org, 2018.

9.d4 ed4 10.Nd4 c5 11.bc6 bc6 12.Nb3 Bf5 13.N1d2 Re8 14.g4 Be6 Attacking the isolated pawn on c4 15.Na5 Qa5 16.f4? (better is 16.Nb3 Qg5 17.Bf6 Bf6 18.Rb1+=) 16...Ng4–+ 17.Bg4 (better is 17.Bg7 Ne3 18.Nb3–+) 17...Bb2 18.Rb1 Bg4 19.Qg4 Qd2 20.Rf2 Qe3 21.Rbb2 Qc1 22.Kg2 Qc4 23.Qf3 c5 24.Rbc2 Qe4 25.Rfd2 Qf3 26.Kf3 Re6 27.Rd5 Kg7 28.Rc4 (28.Rcd2 Rc8 29.Rd6 Rd6 30.Rd6 c4–+) 28...Rae8 29.h3 Re3 30.Kg4 R8e6 31.Ra4 ½–½. cmulligan (2265) – iamachessstudent (2720), net–chess.com, 2011.

8.b5 Ne7

9.a4 Nd7 10.d4 Nf5 11.Qc2 Re8 12.Bd3 Nh4 13.Nbd2 f5 14.de5 Nf3 15.Nf3 Ne5 16.Be2 b6 17.Ne5 Be5 18.Bf3 Rb8 19.Bd5 Kg7 20.Be5 Re5 21.a5 Qf6 22.ab6 ab6 23.Ra7 Re7 24.g3 Qe5 25.Rd1 Be6 26.Bc6 Bf7 27.Rd4 Bg8 28.Qd3 Rf8 29.h4 h6 30.Qd2 g5 31.hg5 hg5 32.Bg2 Bf7 33.g4 fg4 34.Rg4 Bg6 35.Rd4 Bh5 (35...Qf6!?+=) 36.Rd5+/- Qf6 37.e4 Kh6 38.Rf5 Qg7 39.Rf8 (better 39.Rc7! Rc7 40.Qd6 Kh7 41.Qf8 Qf8 42.Rf8 Rc4 43.Rb8+-) 39...Qf8+= 40.Ra3 Qf4 41.Re3 Rf7 42.Qe1 Qe5 43.Rh3 Kg6 44.Rd3 Qb2 45.Rd5 Qe2 46.Qf1 Qf1 47.Kf1 Bg4 48.Rd2 Kf6 49.Ke1 Ke5 50.Rd5 Kf4 51.Rd3 Be6 52.Rc3 Ke5 53.Bf1 g4 (53...Ke4?! 54.Re3 Kf5 55.Bh3 g4 56.Bg4 Kg4 57.Re6-/+) 54.Be2 Rf4 (worse 54...Ke4 55.Re3 Kf5 56.Bg4 Kg4 57.Re6-/+) 55.f3? (better 55.Re3-+) 55...gf3 56.Bf3 Kd4 57.Ra3 Bc4 (57...Kc4?! 58.Be2 Kd4 59.Ra7-+) 58.Kf2 Bb5 59.Rb3 (59.Kg3 Rf7-+) 59...Bc4 60.Rb4 b5 61.Kg3 Rf8 (better 61...Re4!? 62.Be4 Ke4 63.Rb2-+) 62.Rb1 c5 63.Rd1 Ke5 64.Rh1 Rf6 65.Rh5 Kd4 66.Rh1 b4 67.Rd1 Bd3 68.Bg2 (68.Be2 c4 69.Bd3 cd3 70.Kh4-+) 68...b3 69.Bf3 b2 70.Be2 b1Q (70...b1Q 71.Rb1 Bb1-+) 0-1. Bulatovic,M (1930) - Turek,L (2000), TCh-SLO Div, 2018.

9.a4 Be6 10.h3 Qd7 11.Nh2 Bh3 12.gh3 Qh3 13.Bg4 Qh4 14.Qf3 h5 15.Bh3 e4 16.Qg3 Qg3 17.fg3 Nh7 18.Bg7 Kg7 19.Nc3 f5 20.Rf2 c6 21.Nf1 cb5 22.cb5 Rac8 23.Ra3 Ng5 24.Bg2 d5 25.Nd1 Rc1 26.Nb2 Rc2 27.d3 Rf2 28.Kf2 Rc8 29.Kg1 Rc2 30.Rb3 Nf3 31.Bf3 ef3 32.e4 Rg2 33.Kh1 de4 34.de4 fe4 35.Nd1 Kf6 36.Nde3 Re2 37.Rc3 Nf5 0–1. Abdullaevich (1640) – gio7 (1605), lichess.org, 2018.

9.a4 Ne8 10.d4 e4 11.Nfd2 f5 12.c5 d5 13.Qb3 Be6 14.Nc3 g5 15.Nce4 (better is 15.a5+=) 15...fe4+= 16.Ne4 Ng6 17.Ba3 Rf7 18.Rac1 White prepares the advance c6 18...h6 19.c6 b6 (19...de4 20.Qe6 Nf8 21.Qb3 bc6 22.Bc4+– (22.bc6?! Rb8 23.Qa2 Nf6+/–)) 20.Ng3 Nf6 21.Bf3 Bf8 22.Bf8 Qf8 23.Nf5?? (better is 23.Be2+=) 23...Bf5 24.Bd5 Nd5 25.Qd5 Rd8 26.Qb3 Kg7 27.f3 Qd6 28.Rfd1 Be6 29.Qc3 Kh7 30.e4 Nf4 31.d5 Ne2 (31...Ne2 32.Kh1 Nc3 33.Rc3 Qb4–+) 0–1. elsh1403 – ppss43, kurnik, 2012.

9.a4 Bg4 10.d4 e4 11.Nfd2 Be2 12.Qe2 d5 13.cd5 Ned5 14.Nc3 Re8 15.Rfc1 Nb4 16.Ba3 Nbd5 17.Nd5 Nd5 18.Nc4 f5 (18...Qg5 19.Rab1+=) 19.Rc2 (better is 19.Nd6!+/–) 19...f4= 20.Rac1 Qf6 21.Ne5 Qh4 22.ef4 Nf4 23.Qg4 (better is 23.Qc4!? Ne6 24.Re2+=) 23...Qg4+= 24.Ng4 Bd4 25.g3 (better is 25.Rc7 Ne2 26.Kf1 Nc1 27.Nh6 Kh8 28.Nf7 Kg7 29.Nd6 Kg8 30.Ne8 Re8 31.Rc1=) 25...Nd3 26.Rd1 Rac8 27.Rc4 h5 28.Nh6 Kh7 29.Rd4 Kh6 30.Bc1 g5 31.h4 1–0. elsh1403 – laufer25, kurnik, 2011.

9.Qc2 Nf5 10.d4 ed4 11.Nd4 Nd4 12.Bd4 a6 13.a4 ab5 14.ab5 Bd7 15.Ra8 Qa8 16.Nd2 Qc8 17.Bf3 Re8 18.Rb1?? (18.Qb2 Re6+/–) 18...b6?? (18...Bf5 19.Qb2 Bb1 20.Nb1-/+) 19.Nb3?? (19.Qb2 Qd8+/–) 19...Be6?? 20.h3?? Bf5-/+ 21.Qb2 Bb1 22.Bf6 Bf6 23.Qf6 Ba2 24.Bd5= Rf8 25.Nd4 Qd8?? 26.Qf4 Kg7 27.Nc6?? Qf6-/+ 28.Qg4 Qc3 29.Nd4 Qe1 30.Kh2 Qf2 31.Nf3?? Qe3–+ 32.Ng5 h6 33.Nf3 Bb3 34.h4 Bd1 35.h5 Bf3 36.Bf3 g5 37.Qf5 Qf4 38.Qf4 gf4 39.Kh3 Kf6 40.Kg4 Ke5 41.Bd5 f5 42.Kf3 Rh8 43.Bf7 Rh7 44.Bd5 Re7 45.Bc6 Rg7 46.Bd5 Rg3 47.Kf2 Rd3 48.Ke2 Rd5 49.cd5 Kd5 50.Kf3 Ke5 51.Ke2 d5 52.Kf3 d4 53.Ke2 Ke4 54.Kf2 d3 55.Ke1 Ke3 56.Kd1 f3 57.gf3 Kf3 58.Kd2 Ke4 59.Kc3 f4 60.Kc4 f3 61.Kc3 f2 62.Kc4 f1Q (62...f1Q 63.Kb3 d2 64.Kc3 Qc1 65.Kb4 Kd3 66.Kb3 d1Q 67.Kb4 Qc3) 0–1. carocan (1750) – egerbeshi09, kurnik, 2011.

9.Nc3 a6 10.a4 Nd7 11.d4 ed4 12.Nd4 Nc5 13.Bf3 ab5 14.ab5 Ra1 15.Qa1 Nd3 16.Ba3 Nf5 17.Nde2 Ne5 18.Bd5 c6 19.bc6 bc6 20.Be4 Nc4 21.Bc6 Be6 22.Rd1 Na3 23.Qa3 Qc7 24.Bd5 Qc5 25.Qc5 dc5 26.Be6 fe6 27.Ne4 Rc8 28.Rd7 c4 29.N2c3 Bc3 30.Nc3 h5 31.g3 Kf8 32.Kf1 Ke8 33.Ra7 Ne7 34.e4 Nc6 35.Rg7 Ne5 36.f4 Kf8 37.Rh7 Nf7 38.f5 ef5 39.ef5 gf5 40.Rh5 Rc5 41.Ke2 Nd6 42.Ke3?? (42.Rh4 Re5 43.Kf3 Ke7=) 42...Ra5 (better 42...f4 43.Kf4 Rh5-+) 43.Rh6 Ke7 44.Kd4 Nb5 45.Nb5 Rb5 46.Kc4 Rb2 47.Kd5 Re2 48.h4 Kf7 49.h5 Re3 50.Rg6 Re1 51.Rg5 (better 51.Kd4!?+/-) 51...Kf6= 52.Rg8 Rh1 (better 52...Rd1!? 53.Kc4 Rh1=) 53.Rg6+/- Kf7 54.Ke5 Rh5 55.Rf6 Kg7 56.Rf5 Rh1 57.Rf3 Ra1 58.Rd3 Kg6 59.Kf4 Ra4 60.Kf3 Kg5 61.Rd5 Kg6 62.Re5 Rb4 63.Re4 (63.g4 Rb1+/-) 63...Rb3 (better 63...Re4!? 64.Ke4 Kg5=) 64.Kg4 Rb6 65.Rc4 Ra6 66.Rd4 Rb6 67.Rc4 Ra6 68.Rd4 Rb6 69.Rc4 ½-½. bjoernsen (2435) - Arturo_Vidarte (2515), Rated blitz game, lichess.org, 2022.

9.Nc3 b6 10.d4 a6 11.de5 de5 12.Ne5 ab5 13.cb5 Qd1 14.Rad1 Ne8 15.Bf3 Ra5 16.Nd7 Bd7 17.Rd7 Nf5 18.Rd2 Ned6 19.Be2 Rfa8 20.Ra1 Nb7 21.Rc1 Nc5 22.Bf3 Rb8 23.Rcd1 Ne6 24.Be2 Nd6 25.Nd5 Bb2 26.Rb2 Ne4? 27.Ne7 Kg7 28.Nc6 Rba8 29.Na5 Ra5 30.Bc4 N6c5 31.Rc1 Ra3 32.Rbc2 Ra5 33.Be2 Nd6 34.Rb2 Na4 35.Rb4 Nc5 36.Rc2 Kf6 37.f3 Nf5 38.e4 Nd6 39.Rd2 Ke7 40.Rb1 Kf6 41.Kf1 Na4 42.Rb3 Nc5 43.Rb4 Ke7 44.Rb1 Kf6 45.g3 Na4 46.Rb3 Nc5 47.Rb4 g5 48.Ke1 h6 49.h3 Ke7 50.e5 Nf5 51.Kf2 Ke6 52.g4 Ne7 53.Bc4 Ke5 54.Bf7 Kf6 55.Bc4 Ng6 56.Kg3 Ne5 57.Be2 Ke7 58.h4 Ra3 59.hg5 hg5 60.Kg2 Ne6 61.Re4 Nf4 62.Kg3 Kf6 63.Rc2 Ra7 64.Rf4 gf4 65.Kf4 Ng6 66.Ke4 Ne7 67.f4 Ra4 68.Bc4 Ng6 69.g5 Ke7 70.f5 Nf8 71.f6 Ke8 72.Kf5 Rc4 73.Rc4 Kf7 74.Rc7 Kg8 75.Rb7 Kh8 76.g6 Kg8 77.Rb8 Kh8 78.Rf8 1–0. Bonetti,Shane – ChessHouseDK (2130), ICC, 2002.

9.Nc3 c6 10.a4 Qc7 11.Qc2 Nd7 12.Rfc1 f5 13.d4+/= (13.a5 e4 14.Nd4 Ne5 15.f4 ef3 16.Nf3 Be6 17.Ng5+= 0.38) 13...Nf6 (13...f4 A) 14.Ng5 fe3 (14...Nf6 15.de5 de5 16.e4+/– h6 17.Nf3+= 0.56) 15.Ne6 ef2 16.Kf1 Qa5 17.Nf8= –0.09; B) 14.Rf1 Nf5 15.Qd3 a6 16.Rab1 ab5 17.ab5= 0.25) 14.Qb3 (14.c5 A) 14...dc5 15.de5 Ng4 (15...Nd7 16.bc6 Qc6 17.Nb5+/– 1.19) 16.bc6 (16.Bc4 Kh8+– 17.e6+/– 0.81) 16...Nc6 17.Nb5+/– 1.19; B) 14...ed4 15.cd6 Qd6 16.Ba3 c5 17.ed4+/– 1.16) 14...Kh8 (14...e4 15.c5 d5 16.Ne5+= Bh6 17.a5+= 0.31) 15.a5 (15.c5!? dc5 (15...ed4 16.cd6 Qd6 17.Ba3+/– 0.78) 16.Ne5+/– cd4 17.ed4+/– 0.78) 15...e4+/= 16.Nd2 Nd7 (16...h6 17.d5+= 0.63) 17.f3 (17.h3 Nf6+=; 17.Qb4+= 0.63) 17...c5 (17...ef3 18.Bf3 (worse is 18.gf3 f4+=) 18...Nf6 19.Re1+=) 18.d5 (18.Nd5 Nd5 19.cd5 ef3 20.Bf3 Rb8+=) 18...ef3 19.Nf3 Ne5 (19...Qd8 20.Re1+=) 20.b6 Qd8 21.Ne5+/– Be5+/– 22.Nb5 ab6 23.Be5 de5 24.d6 Nc6= 25.ab6 Ra1 26.Ra1 Qb6 27.Ra8 Kg8=/+ 28.Qd1 Bd7 29.Qd5= Kg7 30.Rf8 Kf8 31.Nc7 e4 32.Kf2= Qa5 33.Ne6 Be6=/+ 34.Qe6 Qd8 35.g3 Kg7= 36.Qd5= Qa5 37.g4 Qd8=/+ 38.Kg3? Qf6?? 39.Qc5= Qe5 40.Qe5 Ne5 41.Kf4 Kf6 42.g5 Ke6 43.c5 Nd3 44.Bd3 ed3 A pawn endgame occured 45.Kf3 b6 46.cb6 Kd6 47.Kf2 Kc6 Black threatens to win material: Kc6xb6 48.Ke1 Kb6 49.Kd2 White threatens to win material: Kd2xd3 49...Kc5 50.Kd3 Kd5 ½–½. Schoppmeyer,Herbert – Gudath,Rainer, OWL–ch Bad Oeynhausen, 1964.

9.Nc3 c6 10.a4 e4 11.Nd4 Nf5 (11...d5 12.cd5 cd5 13.d3+=) 12.Nf5+= gf5 (12...Bf5 13.d4+=) 13.d3 (13.d4 Be6+–) 13...d5 14.Qb3 (14.Qc2 Be6+=) 14...Be6 15.Rfd1 (15.a5 Qd7+=) 15...Qb8 (15...dc4 16.dc4 Qc7 17.a5+=) 16.g3 (16.Rab1 Rd8+=) 16...Rd8 (16...dc4 17.dc4 Rd8 18.a5=) 17.Rab1 (17.cd5 Nd5 18.Nd5 Bd5+=) 17...Qc7 (17...dc4 18.dc4 Qc7 19.bc6 bc6 20.f3=) 18.bc6+= bc6 19.cd5 Nd5 (19...Rab8 20.Nb5 Bd5 A) worse 21.Nc7 Bb3 (21...Rb3? 22.Bf6 Rdb8 23.Nd5 Rb1 24.Ne7 Kf8 25.Bg7 Ke7 26.Rb1 Rb1 27.Kg2+–) 22.Rd2 Ba4-/+; B) 21.Qd5 Nd5 22.Nc7 Rb2 23.Rb2 Bb2 24.de4 fe4 25.Bc4+–) 20.Nd5 Bd5 (20...cd5 21.Bg7 Kg7 22.Qb2 Kg8 23.d4+=) 21.Qa3 (21.Qc2 Bb2 22.Rb2 Rab8+=) 21...ed3 (21...Bb2 22.Qb2 Rab8 23.Qc3+=) 22.Bd3+– (worse 22.Qd3 Be4 23.Qa3 Bb1 24.Bg7 Rd1 25.Bd1 Rd8-/+; 22.Rd3 Rdb8 23.Rd2 Rb3 24.Qb3 Bb3 25.Bg7 Qa5–+) 22...Bf3 (22...Bb2 23.Rb2 Qe5 24.Rb7+=) 23.Rdc1 (23.Bg7 A) 23...Bd1? 24.Ba1 Bf3 25.Qc3+– (25.Bf5?! Qd6 26.Qc1 c5=); B) 23...Kg7 24.Qc3 Kg8+–) 23...Bb2 24.Rb2 Qd7 (24...Qd6 25.Qd6 Rd6 26.Bf5+=) 25.Bf1 Qd5 (25...Bd5 26.Qc5+–) 26.Qc3 (26.Rb7 Rd7 27.Rd7 Qd7+–) 26...Rd6 (26...Rab8 27.Rb8 Rb8 28.h3+–) 27.Rb4 (27.Bc4 Qe4+–) 27...Rad8 (27...Qd2 28.Qd2 Rd2 29.Bg2 Bg2 30.Kg2+–) 28.Rd4 (28.Rf4!?+–) 28...Qe6+– 29.Rd6 Qd6 30.h4 (30.Qa5 Qd7+–) 30...Re8 (30...Be4 31.Bg2+=) 31.Qa5 (31.Bg2 Bg2 32.Kg2 Qd5 33.Kh2 Re6+–) 31...Qd7 (31...Re3 32.Qa7 Re7 33.Qa8 Kg7 34.Qa5+=) 32.Qc5 Be4 33.a5 (33.Bg2 Qd2+–) 33...Rb8 34.a6 (34.Qc3 Qd6+=) 34...Rb2 (34...Qd2!? 35.Qc3 Qc3 36.Rc3 Rb1=+) 35.Qc3+= Rd2 36.Qf6 The isolani on c6 becomes a target (36.Qe5 Qd6 37.Qd6 Rd6+=) 36...Rd6 (36...Rd1 37.Rd1 Qd1 38.Qg5 Kh8 39.Qe7=) 37.Qg5 (37.Qe5 Qe6 38.Qf4 Kg7+–) 37...Rg6 38.Qf4 Rd6 (38...Qd6 39.Qd6 Rd6 40.Rc4+=) 39.Qe5 (39.f3 Bd3 40.Rd1 c5+–) 39...f6 40.Qb2 (40.Qf4 Qe7 41.Qh6+=) 40...Rd2 (40...Kg7!?+=) 41.Qf6+– Rd1? (41...Qg7 42.Bc4 Kh8 43.Qe6+–) 42.Qa1?? (better 42.Rd1 Qd1 43.Qe7+–) 42...Rc1+– 43.Qc1 Bd5 (43...Kf7 44.Qc5+–) 44.Qc5 Qg7 (44...Kf7 45.Qd4+–) 45.Qd6+– Qg4 (better 45...Qf8 46.Qf4 Qf7+–) 46.Qb8 Kf7 47.Qa7 Ke6 48.Bg2 (48.Qh7 Qf3 49.Qh6 Kd7=) 48...Bg2 49.Kg2 Qe4 50.Kh2 (50.Kg1 Qb1 51.Kh2 Qa2+–) 50...Qf3 51.e4 f4 52.gf4 (better 52.g4 h5 53.Qc5 hg4 54.Qc6 Kf7 55.Qd7 Kf8 56.Qd8 Kf7 57.Kg1+–) 52...Qe4?? (52...Qf4 53.Kg2 Qg4 54.Kh1 Qf3 55.Kg1 Qg4 56.Kf1 Qd1 57.Kg2 Qg4 58.Kf1 Qd1 59.Kg2 Qg4=) 53.Kh3 (better 53.Qe3 Kf5 54.Qe4 Ke4 55.Kg3+–) 53...Qf3= 54.Kh2 Qf4 55.Kg1 Qg4 56.Kf1 Qd1 (56...Qh4? 57.Qe3 Kd7 58.a7 Qc4 59.Kg2 Qg8 60.Kh3+–) 57.Kg2 Qg4 58.Kf1 Qd1 59.Kg2 Qg4 60.Kh2 Qf4 61.Kg1 Qg4 62.Kf1 Qd1 ½–½. Schiefelbusch,Dirk (2100) – Heinichen,Nils (2115), 2nd Bundesliga West, 2017.

9.Nc3 c6 10.bc6 Nc6 11.d4 ed4 12.ed4 Re8 13.Qd2 Bf5 14.d5 Ne5 15.Ne5 Re5 16.Nb5 Re7 17.Bf3 Ne4 (17...Rc8!? 18.Rac1 a6=) 18.Be4+/– Re4 19.Bg7 Kg7 20.Qb4 a5 21.Qd6 Rc4 22.Rfd1 Qg5 (22...Rac8 23.Qd8 Rd8 24.d6+=) 23.Qe5 Kg8 (23...Qf6!? 24.Qf6 Kf6+=) 24.Nd6+/– f6 25.Qe7 Bh3 26.g3 Rf4? (26...Rb4 27.Qf7 Kh8+–) 27.Ne8 Re8 28.Qe8 Kg7 29.Qe3 Rc4 30.Qg5 fg5 31.d6 Rc8 32.Rab1 Rb8 33.Re1 Kf6 34.Re7 Rd8 35.Rh7 Bg4 36.Rb6 Bf3 37.d7 Kf5?? 38.Rf7 Ke4 39.Re6 (39.Re6 Kd5 40.Re8 (40.Rf3?! Ke6 41.Ra3 Rd7+/–) 40...Rd7 41.Rd7 Kc4 42.Rc7 Bc6 43.Re5+–) 1–0. Riesen,Markus (2045) – Heinatz,Maria (1800), Bern op, 2004.

9.Nc3 Nd7 10.Qc2 f5 11.d4 e4 12.Ng5 Nf6 13.h4 h6 14.Nh3 c6 15.Nf4 g5 16.Nh3 Nh7 17.hg5 hg5 18.Rfd1 Ng6 Black intends f4 19.Ba3 f4? (better 19...g4 20.Nf4 Nf4 21.ef4 Nf6=) 20.Ne4+– (20.Qe4? Bf5 21.bc6 Be4 22.Ne4 bc6 23.Nd6 Qd7–+) 20...Bh3 (20...Bf5 21.Bd3 fe3 22.fe3 g4+–) 21.gh3 f3 (21...fe3 22.fe3 c5 23.Nc5+–) 22.Bf1 White plans c5 22...Nh4 (22...c5 23.Nc5 dc5 24.Qg6+–) 23.Bd6 Re8 24.c5 Qd7 25.Bg3 Qf5 (25...Nf5+–) 26.Qb3 Kh8 (26...Re6 27.Bc4 Qe4 28.Be6 Kh8 29.bc6 bc6 30.Qb7+–) 27.Nd6 1–0. Janek – Larry, internet free game, 2017.

9.Nc3 Nd7 10.d4 f5 11.de5 Ne5 12.Ne5 de5 13.Ba3 Bf6 14.e4 Be6 15.ef5 gf5 16.Nd5 Nd5 17.cd5 Qd5 18.Bf8 Rf8 19.Qc1 e4 20.Rd1 Qe5 21.Bc4 Rf7 22.Rb1 Kg7 23.Be6 Qe6 24.Qa3 Qb6 25.Rd5 Bd4 26.Qg3+– Kf8 27.Rd1 Bf6 28.Rf5 a6 29.Qb3 (29...Kg7 30.Re1+–) 1–0. Bonetti,Shane – Talchess (2115), ICC, 2002.

9.Nc3 Ne8 10.d4 Bd7 11.d5 f5 12.Ng5 Nf6 13.h3 h6 14.Nf3 g5 15.Nh2 f4 16.Ng4 Ng6 17.Nf6 Qf6 18.Ne4 Qf7 19.Bh5 Bf5 20.f3 Be4 (20...a6!?=) 21.fe4+= Qf6 22.ef4 gf4 23.Bg6 (23.Bg4 a6+=) 23...Qg6= 24.Qe2 Bf6 25.Qg4 (25.Qf3!?=) 25...Qg4+= 26.hg4 Kg7 (26...Kf7 27.Kf2+=) 27.Kf2 Bh4 28.Ke2 ½–½. Szkodnikow_i_ofiar – craig4000, ChessWorld.net, 2015.

9.Nc3 Bf5 10.Nh4 (10.d4 e4 11.Nd2 Qd7+=) 10...Qd7 (10...Be6 11.Nf3=) 11.Nf5 Nf5 12.Nd5 (12.Bf3 Rab8=) 12...Nd5 (12...a6 13.Nf6 Bf6 14.Qb3=) 13.cd5+= Ne7 (13...e4 14.Bg7 Kg7+=) 14.a4 (better is 14.Qb3!?+=) 14...Nd5+= 15.e4 (15.Qb3 c6+=) 15...Nf4-/+ 16.Bf3 Nd3 (16...a6 17.Qb3-/+) 17.Bc3 Qe7 (17...Bf6 18.g3+=) 18.Qe2 Nf4 (18...Nc5 19.Rfb1+=) 19.Qe3 (19.Qc4 a6+=) 19...Bh6-/+ 20.Qe1 Qg5 (20...a6 21.g3 Nh3 22.Kg2-/+) 21.Qe3 (21.g3 Ne6+=) 21...Qf6-/+ 22.d4?? (better is 22.Qe1-/+) 22...Nh3!!–+ 23.gh3 Be3 24.fe3 Qg5 25.Bg2 (25.Kf2–+) 25...Qe3 26.Kh1 Qc3 27.Rac1 Qd4 28.Rc7 Qa4 29.Rb7 Rab8 30.Rd7 Rb5 31.Rd6 a5 32.Rdd1 Qc2 33.Rc1 Qd2 34.Rfd1 Qe3 35.Re1 Qd2 36.Red1 Qf2 37.Rf1 Qe3 38.Rfe1 Qg5 39.Rc2 Rfb8 40.Rc6 Rb2 41.Rg1 a4 42.Ra6 Rg2! 43.Rg2 Rb1 (43...Rb1 44.Rg1 Rg1#) 0–1. Neumann,Frank – Mori,Roberto, SN–2012–0-00443, 2012.

9.Nc3 h6 10.Qb3 Nd7 11.Rfd1 Nc5 12.Qc2 Bf5 13.e4 Bd7 14.a4 (14.d4 ed4 15.Nd4 f5+=) 14...Ne6 (14...a6 15.d4 ed4 16.Nd4=) 15.a5 g5 (15...a6 16.ba6 ba6 17.Rdb1=) 16.Nd5 (16.a6 ba6 17.Ra6 g4+=) 16...Ng6 17.Bf1 (17.a6 ba6 18.Ra6 Nc5+=) 17...g4= 18.Ne1 c6 19.bc6 (19.Nb4 cb5 20.cb5 Rc8=) 19...bc6 20.Ne3 Nd4 21.Bd4 (21.Qa4 c5 22.Qa3 Qh4=+) 21...ed4 22.Nf5 d3 23.Nd3 (23.Qd3 Ba1 Discovered attack; 23.Nd3 Ba1 Discovered attack; 23.Bd3 Ba1 Discovered attack) 23...Ba1 24.Ra1 Bf5 25.ef5 Qf6 26.Nb2 (26.Qa4!? Ne5 27.Nb4=+) 26...Ne7-/+ 27.Ra3 (27.Bd3 Rab8 28.Rb1 Qe5-/+) 27...Nf5 28.h3 (28.Nd1 Qe5-+) 28...Nd4 (28...Rab8 29.Nd1-+) 29.Qe4 h5 30.hg4 (30.Rd3 c5 31.Re3 Rfe8 32.Qe8 Re8 33.Re8 Kg7 34.hg4 Nb3-+) 30...Rae8 (30...Rfe8 31.g5 Qf2 32.Kf2 Re4 33.g3-+) 31.Qb1 hg4 32.Rg3 Qg7 33.Nd3? (33.c5 dc5 34.Qc1 Re4-+) 33...f5 (33...Nf5 34.Re3 Ne3 35.fe3-+) 34.Nf4? (34.Re3 Rb8 35.Qd1 f4-+) 34...Qg5 (better 34...Re4!? 35.Nh3 Rfe8 36.Re3 gh3 37.Rg3 h2 38.Kh1-+) 35.Nh3 Qd2 36.Qb7 (36.Rd3 Ne2 37.Be2 Qe2 38.Nf4-+) 36…Re1 (36...Re1 37.Kh2 Rf1-+; 36...Qa5?? 37.Ng5 Rf6 38.Qh7 Kf8 39.Qh8 Ke7 40.Qg7 Kd8 41.Qf6 Kc7 42.Qd4+-) 0-1. Tokman,A (2315) - Aldokhin,I (2410), Titled Tuesday, 2020. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5)

9.Nc3 h6 10.Qb3 Kh7 11.d4 ed4 12.Nd4 Nd7 13.Rfd1 Nc5 14.Qc2 Bd7 15.Bf3 Qc8 16.h3 Nf5 17.Nd5 Qd8 18.Nb3 Nh4 19.Nc5 Nf3 20.gf3 dc5 21.Bg7 Kg7 22.Qb2 f6 23.Kh2 c6 24.Nf4 Qc7 25.Kh1 Bf5 26.Rg1 Kh7 27.Rg3 g5 28.Ng2 cb5 29.e4 Be6 30.cb5 Rad8 31.Ne3 Qe5 32.Qc1 Rf7 33.a4 Rfd7 34.Ra3 Rd3 35.Nd5? Ra3–+ 36.Qc5?? Ra1 37.Kg2 Bd5 (38.Qb4 Bf7–+) 0–1. Bennett,Hilton Petrie (2200) – Berezina,Irina (2230), Sydney Challenge op, 1999.

9.d3 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 b6 (12...Re8 13.Nbd2=) 13.Nc3 Bb7 Black prepares e4 14.Nd2 Qa8 15.Bf3 Bf3 16.Nf3 e4 17.Nd4 ed3 18.Qd3 Nd7 19.Ne4 Qb7 20.Nf3 f5 21.Neg5 Nc5 22.Qc2 h6 23.Nh3 g5 24.Bg7 Kg7 25.Nd4 Qe4 26.Qc3 Kh7 27.f3 (27.f4 gf4 28.Nf4 Ra8+=) 27...Qe5 28.f4 Qg7 (28...gf4 29.Nf4 Ra8 30.Kh1+=) 29.fg5 hg5 30.Qc2 Now all is on f5 30...Kh6 31.Rf5 (31.Nf5? Nf5 32.Qe2 Qe5–+) 31...Nf5 32.Nf5 Rf5 33.Qf5 Qe5 34.Qe5 de5 35.Nf2 Kg6 ½–½. Kadic,Aladin (1770) – Grab,Ratko (1980), Wattens op 9th, 1994. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nc6)

9.d3 b6 10.Nbd2 Bb7 11.e4 Nd7 12.Qb3 Nc5 13.Qc2 Kh8 14.d4 ed4 15.Bd4 f6 16.a4 a5 17.Rad1 Ne6 18.Bb2 Nf4 19.Nb3 Qc8 20.Bc1 Qg4 21.Bf4 Qf4 22.Bd3 f5 23.Qd2?? fe4–+ 24.Qf4 Rf4 25.Rfe1 Nf5 26.Ng5 ed3 27.Ne6 Rc4 28.Rd3 Re8 29.Kf1 Ra4 30.Nc7 Bg2! 31.Kg2 Re1 32.Nd5 Rg4 33.Kf3 h5 (34.Nb6 Nh4#) 0–1. Reimer,Karl – Teixeira,Jose, Nord West Cup, 2000.

9.d3 Bd7 10.Nc3 h6 11.a4 c6 12.e4 c5 13.Ne1 g5 14.f3 Nh5 15.g4 Nf4 16.Nc2 h5 17.Ne3 Neg6 18.Ncd5 Be6 19.Nf4 ef4 20.Bg7 (20.gh5?? Bb2 (20...fe3?! 21.Bg7 Kg7 22.hg6+=) 21.Ng4 Bd4 22.Kh1 Ne7–+) 20...fe3? (better is 20...Kg7!? 21.Nf5 Bf5 22.gf5 Nh4+=) 21.Bf8+– Nf4 22.Ra2 Qf8 23.Qc1 Qh6 24.Qe3 hg4 25.fg4 Qf6 26.Rf4! gf4 (26...Qf4 27.Qf4 Combination; 26...gf4 27.Qf2 Decoy) 27.Qf3 Kf8 28.Bf1 Ke7?? (better is 28...Rd8+–) 29.e5! Qe5 (29...de5 30.Qb7 Double attack (30.Qb7 Discovered attack); 29...Qe5 30.Qb7 Double attack (30.Qb7 Discovered attack)) 30.Qb7 Kf6 31.Qa8 Bg4 32.Qh8 (32.Qh8 Kf5 33.Qc8 Qe6 34.Qc7+–) 1–0. Nemeth,Laszlo1 (1985) – Mako,Zoltan (2095), Gyongyos Matra Cup, 2004.

9.d3 Nd7 10.Nc3 f5 11.Qc2 f4 12.d4 fe3 13.fe3 Nf5 14.Nd1 Qe7 15.Bd3 Nh4 16.Nh4 Rf1 17.Bf1 Qh4 18.Qf2 Qe7 19.Nc3 Nf6 20.h3 Be6 21.Qf3 Rf8 22.Qb7 Bh6 23.Re1 Nh5 24.Ne4 Qh4 25.Bc3 Bf5 26.Qd5 Kh8 27.Bd3+/– Be4 28.Qe4 Qf2 29.Kh2 Ng3 30.Qg4 Be3 31.de5 Nf5?? 32.ed6+– Kg8 33.Bf5 Rf5 34.dc7 Bf4 35.Kh1 Bc7 36.Qe4 Qf1!? (37.Rf1 Rf1#) 0–1. Bennett,Hilton Petrie (2200) – Tindall,Brett (2250), Sydney Challenge op, 1999.

9.d3 Nd7 10.d4 ed4 11.Nd4 Nc5 12.Nc3 Nf5 13.Nd5 Be6 14.Ne6 (14.Rb1 Nd4 15.Bd4 Be5+=) 14...fe6= 15.Bg7 Kg7 16.Nf4 Qf6 17.Qc2 a6 18.Nd3 Nd3 19.Bd3 a5 (19...Rf7 20.Rab1=) 20.Be4 Rab8 21.Bf5 Qf5 22.Qc3 Qe5 23.Qa5 b6 24.Qd2 Ra8 25.a4 Ra5 26.Ra3 Rfa8 27.Rfa1 (better is 27.Qc2+=) 27...Ra4+= 28.Qc1 R4a5 (28...Rc4! 29.Ra8 Rc1 30.Rc1 Qb5 31.Rc7 Kf6+=) 29.h3 Ra3 ½–½. Kelly,Lad (2235) – Costachi,M (1970), Arad ROM, Romania Open, 2012.

9.d3 Ne8 10.Nbd2 f5 (10...Nf6 11.c5+=) 11.e4 (11.Qb3 Nf6+=) 11...Nf6= 12.Qb3 Kh8 13.Ng5 (13.Qc2 c5=) 13...h6 14.Ngf3 f4 (14...Be6 15.Qc2=) 15.Nh4 (15.d4 ed4 16.Bd4 a6+=) 15...g5= 16.Nhf3 Ng6 17.g3 (17.h3!?=) 17...g4=+ 18.Nh4? (better 18.Ne1!?=+) 18...Nh4–+ 19.gh4 f3 20.Bd1 Nh5 21.Bc2 (21.c5 Qh4 22.Nc4–+) 21...Qh4 22.Rfe1 (22.Bd1 Qh3 23.Nf3 gf3 24.Bf3–+) 22...Nf4 (22...Qh3 23.Nf3 gf3 24.Be5 Qg2) 23.Nf3 gf3 24.Bd1 (24.Kh1 Qf2 25.Rg1 Bh3 26.Rg7 Bg2 27.Rg2 Qg2) 24...Nh3 (24...Qg5 25.Kh1 Qg2) 25.Kh1 Nf2 (25...Qg5 26.Be5 Nf2) 26.Kg1 Ng4 (26...Nh3 27.Kf1 Qf2) 27.Bf3 (27.Re2 f2 28.Rf2 Qf2 29.Kh1 Qh2) 27...Qf2 (27...Qf2 28.Kh1 Qh2; 27...Qh2 28.Kf1 Rf3) 0–1. Goldmund,Heike – McDonagh,Michael (1700), FICGS, 2015.

9.d3 Nh5 10.Ne1 (10.Nc3 Bd7+=) 10...Nf6= 11.Nd2 (11.Nf3 a6=) 11...c6 (better 11...a6=) 12.f4 (better 12.Nef3!?=) 12...Nf5-/+ 13.e4?? (better 13.Nc2 Qb6 14.Kh1 Ne3 15.Ne3 Qe3 16.Rf3-/+) 13...Ne3–+ 14.Qc1 (14.Qa4 Nf1 15.Kf1 cb5 16.Qb5 ef4–+) 14...Nf1 15.Kf1 Ng4 (better 15...ef4!? 16.bc6 bc6 17.Rb1–+) 16.Bg4 Bg4 17.h3 (17.f5 gf5 18.h3 Bh5 19.ef5 f6 20.bc6 bc6–+) 17...Be6 (17...Bd7 18.fe5 de5 19.a4–+) 18.fe5 (18.bc6 bc6 19.fe5 de5–+) 18...de5 19.Ndf3 (19.bc6 bc6 20.Ba3 Re8–+) 19...f5 (better 19...cb5 20.cb5 f5–+) 20.Be5 (20.ef5 Bf5 21.Qe3 cb5 22.cb5–+) 20...Be5 21.Ne5 (21.Rb1 fe4 22.Qe3 ef3 23.Nf3 Qd6–+) 21...fe4 22.Ke2 Qd4 23.Ng4 Bg4 24.hg4 ed3 (24...ed3 25.Kd1 Rf1 26.Qf4 Qa1 27.Kd2 Qe1 28.Kd3 Rf4 29.bc6 Rd8 30.Kc2 Qb4 31.cb7 Rc4) 0–1. Rubio Fuentes,Rodrigo – Rodriguez Gonzalez,A, Interclubes Club Chile, 2012.

9.d3 h6 10.Nbd2 (10.d4 ed4 11.Nd4 Re8=) 10...Be6 (10...a6 11.Qc2=) 11.Qc2 Rc8 (11...a6 12.d4 ed4 13.Nd4=) 12.d4 (12.Rfd1 c6 13.a4 Qc7+=) 12...ed4 13.Nd4 Bd7 (13...c5 14.bc6 bc6 15.Rfd1+=) 14.e4 (14.Rfd1 c5 15.N4f3 Bf5+=) 14...c6 15.a4 (15.Qd3 Re8+=) 15...d5 (15...Re8 16.Rfd1+=) 16.e5 Ng4 (16...Ne8 17.f4+=) 17.e6!+– fe6 (17...Be6 18.cd5 Double attack (18.cd5 Decoy); 17...fe6 18.Bg4 Decoy (18.Bg4 Interception)) 18.bc6 Nc6 (better 18...bc6!? 19.Bg4 Bd4 20.Bd4 Rf4 21.Ba7 Rg4+–) 19.Nc6+– (19.Bg4?! Nd4 20.Bd4 Bd4 21.Qg6 Bg7 22.Be6 Kh8 23.Bd7 Qd7 24.cd5 Qd5+–) 19...Rc6 (19...bc6 20.Bg4 Bb2 21.Qb2+–) 20.Bg4 (20.Bg7 Kg7 21.Bg4 e5 22.Bd7 Qd7+–) 20...e5 21.Bf3 Bf5 (21...e4 22.Bg7 Kg7 23.Be2+–) 22.Qb3 (22.Qd1 Be6+–) 22...e4 23.Bg7 (23.cd5 Rb6 24.Qe3 Bb2 (worse 24...Rb2 25.Ne4 Rb4 26.Rae1+=) 25.Ne4 Ba1 (25...Qd5?? 26.Nf6 Bf6 27.Bd5 Kh7 28.Rac1+–) 26.Ra1 Be4 (26...Qd5 27.Nf6 Rff6 28.Bd5 Be6 29.a5+–) 27.Be4 Re8=+) 23...Kg7 24.cd5 ef3 25.dc6 fg2 (25...Qd2 26.cb7 fg2+–) 26.Qb7 Rf7 27.Qb2 Kh7 28.Rfe1 Qg5 (28...Bg4 29.Rac1+–) 29.Re8 Rg7 (29...Qf6 30.Qf6 Rf6+–) 30.Rae1 Bh3 31.Ne4 Qf4 (31...Qf5 32.Nf6 Qf6 33.Qf6 Be6 34.Qf8 Rg8 35.Re7 Bf7 36.Qf7 Rg7 37.Qg7) 32.Nf6 Qf6 33.Qf6 (33.Qf6 Be6 34.Qf8 Rg8 35.Re7 Bf7 36.Qf7 Rg7 37.Qg7) 1–0. Janek – Manelle, internet free game, 2017.

9.d4 Bd7 10.de5+– de5 (10...Ng4 11.Nd4 (worse 11.ed6 Bb2 12.de7 Qe7=+) 11...de5 12.Bg4 Bg4 13.Qg4+–) 11.Be5 a6 (11...Nf5 12.Qd3+–) 12.Nc3 (12.Qc2 ab5 13.cb5 c6+–) 12...ab5 13.cb5 c6 14.a4 cb5 (14...Re8 15.e4+–) 15.ab5+– Ned5?? (better 15...Be6+–) 16.Nd5 Ra1 (16...Nd5 17.Bg7 Kg7 18.Ra8 Qa8 19.Qd5+–) 17.Qa1 Nd5 18.Bg7 Re8 19.Bc4 Be6 (19...Bg4 20.Bh8 Kf8 21.Rd1 Bf3 22.Qg7 Ke7 23.gf3+–) 20.Rd1 Nc3 1–0. DEFFM – GuestKNQK, freechess.org, 2018.

9.d4 Nd7 10.Nc3 a6 11.a4 ab5 12.cb5 ed4 13.ed4 (13.Nd4 Nc5+=) 13...Nb6 14.Re1 Nbd5 15.Ne4 Bg4 16.h3 Bf5 17.Bc4 Nb6 (17...Nf4 18.Nc3=) 18.Bb3 Be4 (18...Nbd5 19.a5+=) 19.Re4 d5 20.Re1 Nf5 (20...Re8 21.a5 Nc4 22.Bc4 dc4 23.a6+=) 21.Qd3 Nd6 22.Ba3 Nbc4 (22...Re8 23.Re8 Ne8 24.Bb4+/-) 23.Bb4 (23.Bd6 Nd6 24.Bd5 Re8 25.Re8 Qe8+/-) 23...c6 (23...Nb2 24.Qf1 Re8 25.Bd5 Re1 26.Qe1 Nd3+/-) 24.Ne5 (better 24.bc6!? bc6 25.Bc4 dc4 26.Qc3+/-) 24...cb5+= 25.ab5 Ra1 26.Ra1 Ne5 27.de5 Be5 28.Re1 Qh4 29.Re5 Qb4 Attacking the isolated pawn on b5 30.Qd5 (30.Rd5 Rd8+=) 30...Nf5 (30...Rc8 31.g3=) 31.g4 (31.g3 Nd6+=) 31...Nd4 (31...Nd6!?+=) 32.Bc4+/- Nf3 33.Qf3 Qc4 34.Qb7 Rd8 35.Kg2 (35.Qf3+/-) 35...Qf4? (35...Rd1!? 36.Kg3 Kg7+=) 36.Re7 (36.Qe4 Qe4 37.Re4 Rb8+-) 36...Rd2 (36...Qf6 37.Rd7 Rf8 38.Qc6+-) 37.Qf3 Qf3 38.Kf3 Rb2 39.Rb7 Rb4 (39...Rb3 40.Ke4+-) 40.h4 (40.g5 Kg7+-) 40...h6 (40...h5!? 41.gh5 gh5+/-) 41.Kg3+- Kg7 (41...h5 42.gh5 gh5 43.b6+/-) 42.f3 (42.g5 Rb1+-) 42...g5 43.h5 Rb2 44.Rb6 Kh7 45.Rb8 Kg7 46.b6 Kh7 (46...Kf6!?+/-) 47.b7+- Kg7 48.Kh3 (48.f4 Rb3 49.Kg2 gf4+/-) 48...Kh7= 49.Kg3 Kg7 50.f4 Rb3 51.Kf2 gf4 52.g5?? (better 52.Ke2+=) 52...hg5-+ 53.h6? (better 53.Ke2-+) 53...Kh7 54.Ke2 (54.Rd8 Rb7 55.Rd6 g4-+) 54...g4 55.Kd2 (55.Rd8 Rb7 56.Rd4 f3 57.Ke3 Re7 58.Kf2 Re2 59.Kf1-+) 55...g3 56.Kc2 Rb6 57.Kd3 (57.Rc8 f3 58.Rc7-+) 57...g2 58.Rf8 g1Q (58...Rb7 59.Re8 g1Q 60.Kc4 Rc7 61.Kd3 Rd7 62.Ke4 Qe3 63.Kf5 Rd5 64.Kf6 Qb6 65.Kf7 Qg6 66.Ke7 Qe4 67.Kf6 Rf5) 59.Rf7 Kh6 60.b8Q Qe3 61.Kc4 Rb8 (61...Qe4 62.Kc3 Rc6 63.Kb2 Qc2 64.Ka3 Rc3 65.Kb4 Rb3 66.Ka5 Qa2) 62.Rf6-+ Kg5 63.Rf7 (63.Rc6 Qe4 64.Kc3 Qc6 65.Kd3 Qd5 66.Kc3 Rb3 67.Kc2 Qd3 68.Kc1 Rb1) 63...Qb3 (63...Qc1 64.Kd3 Rd8 65.Rd7 Rd7 66.Ke2 Rd2 67.Kf3 Qc6) 64.Kd4 Qf7 65.Ke4 (65.Kd3 Qd5 66.Kc3 Rb3 67.Kc2 Qd3 68.Kc1 Rb1) 65...f3 (65...Rd8 66.Kf3 Rd2 67.Ke4 Qd5) 66.Ke3 Re8 (66...Rd8 67.Kf2 Qa2 68.Kf3 Rd3 69.Ke4 Qe2) 67.Kf2 (67.Kd4 Rd8 68.Ke3 f2 69.Ke2 f1Q 70.Ke3 Qd3) 67...Re2 68.Kg3 (68.Kf1 Qc4 69.Kg1 Qc1) 68...Qf4 69.Kh3 Qg4 0-1. Eekamouse (2550) - grandmatt (2605), Rated Blitz game, lichess.org, 2016. (=1.e3 A15: English Opening: 1...Nf6 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.Nf3 d6 6.Be2 e5)

9.d4 Nd7 10.Nc3 ed4 11.Nd4 Nc5 12.a4 Nf5 13.a5 a6 14.Nd5 Nd4 15.ed4 Ne6 16.Re1 Bd7 17.Qd2 h5 18.Bf1 Kh7 19.Ra3 Rb8 20.Rb3 c6 21.Nb6 Be8 22.Bc3 cb5 23.cb5 ab5 24.Bb5 Bb5 25.Rb5 Nc7 26.Rbb1 d5 27.Qa2 (27.Bb4 Re8 28.Re8 Ne8+–) 27...Bf6 (27...Re8 28.Qb2+/–) 28.h3 Kg7 29.Qa4 Re8 30.Nd7 Re1 31.Re1 Rc8 32.Nb6 ½–½. Melich,Jindrich (2070) – Novak,Radomir (2110), CZE–chT2c, 2006.

9.d4 ed4

10.Nd4 Re8 11.Nd2 a6 12.a4 c5 13.N4b3 Qc7 14.Bf3 Bf5 15.Qc1 g5 16.e4 Bd7 17.h3 Ng6 18.Bc3 h5 Black prepares the advance g4 19.Qb2 Ne5 Black plans g4 20.Be2 g4 21.f3 gf3 22.Bf3 Be6 23.Be2 Nfd7 24.a5 h4 25.Kh1 Qd8 26.Nf3 Bc4+= 27.Ne5 Ne5 28.Bc4 Nc4 29.Qe2 Ne5 30.ba6 Ra6 31.Rf5 c4 32.Nd2 d5 33.Rd1 Rd6 34.ed5 Rd5 35.Rdf1 Re7 36.Bb4 Rc7 37.Qh5 Rd2 38.Bd2+= Qd2 39.Re5 Be5 40.Qe5 Rd7 41.Rf4 Qd1 42.Kh2 Qd6 43.Qd6 Rd6 44.Rc4 Ra6 45.Rb4 Ra5 46.Rb7 Ra4 47.Rb5 f6 48.Rb7 f5 49.Kg1 Ra3 50.Rb4 Kf7 51.Rh4 Kf6 52.Rb4 Ke5 53.h4 f4 54.Rb5 Ke4 Black intends f3 55.h5 f3 56.gf3+– Rf3 57.Kg2 Rf6 58.Kg3 Rf1 59.Rb8 Rd1 60.Kg4 Rg1 61.Kh4 Rg2 62.h6 Kf4 63.Rf8 Ke5 64.Kh5 Rh2 65.Kg6 Rg2 66.Kf7 Rf2 67.Kg7 Rg2 68.Kh7 Rh2 69.Kg7 Rg2 70.Kh7 Rh2 71.Kg7 Rg2 72.Kh7?? Rh2 73.Kg7?? Rg2= ½–½. Bristol,Mike (2175) – Tremblay,Louis (2105), KE63 Canadian Championship (CCCA), 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nc6)

10.Nd4 Nf5 11.Nd2 Nd4 12.Bd4 Re8 13.Bf3 Qe7 (13...a6 14.a4+=) 14.a4 Nd7 15.Nb3 (15.Bg7 Kg7 16.a5 a6+=) 15...Bd4 (15...Ne5 16.Bd5+=) 16.ed4+– Nf8 (16...Qf6 17.a5+–) 17.Qd2 Bf5 (better 17...Qf6!?+–) 18.Bb7+– Rab8 19.Bc6 Bd7 20.Rfe1 Qf6 21.Na5 (21.Bd7 Nd7 22.Qa5 Re1 23.Re1 Qd8+–) 21...Kg7 (21...Re6 22.Bd7 Nd7 23.Nc6+–) 22.Bd7 Nd7 23.Nc6 Re1 (23...Ra8 24.a5+–) 24.Re1 Ra8 25.Re7 (25.a5 a6+–) 25...Nb6 26.Qb4 Qg5 (26...a6 27.a5 (27.Rc7?! ab5 28.a5 Re8=) 27...ab5 28.Qb5+– (28.ab6? Qe7 29.h3 Qe2–+; 28.cb5? Nd5 29.Qe1 Ne7 30.Qe7 Qe7 31.Ne7 Ra5–+)) 27.a5 Na4? (27...Nc8 28.Re1 d5+–) 28.Re1 1–0. DEFFM – berserkergang, freechess.org, 2018.

9.d4 e4

10.Nfd2 a6 11.a4 (11.ba6!? Ra6 12.Nc3+/–) 11...ab5+= 12.ab5 Ra1 13.Ba1 c6 14.Nc3 d5 15.Qb3 Re8 16.Bb2 Qc7 17.Rc1 h5? (17...Bg4!?+=) 18.Ba3 (18.cd5 Bg4 19.Bf1 Bf5+–) 18...h4? (18...Qd8 19.bc6 bc6 20.cd5 Ned5 21.Bc5+/–) 19.Be7?? (better is 19.cd5 Nf5 20.dc6 bc6 21.bc6+–) 19...Qe7 20.cd5 cd5 21.Nd5 Nd5 22.Qd5 h3 23.g3 Kh7 24.Bc4 f5 25.Qc5 Qc5 26.dc5 Rd8 27.Nb3 Bb2 28.Rb1 Ba3 29.Bf1 Be6 30.Nd4 White prepares c6 30...Bf7 31.c6 bc6 32.bc6 Bc5?! 33.c7 Rc8 34.Rc1 Bb6? 35.Nb5+– Be6? 36.Nd6 Rc7= 37.Rc7 Bc7 38.Nb5 Bb6 39.Bh3 g5 40.Bf1 g4 41.Kg2 Kg6 42.h3 Kg5 43.hg4 Kg4 44.Be2 Kg5 45.Nd4 Bd4 46.ed4 Bd5 47.f4 Kf6 48.Kf2 Ke6 49.Ke3 Kd6 50.g4 fg4? 51.Bg4 Ke7 52.Bf5 Kf6 53.Be4 (53.Be4 Bf7 54.d5+–) 1–0. carocan (1865) – kriskris73 (1680), kurnik, 2011.

10.Nfd2 c5 11.Nc3 cd4 12.ed4= (12.Nce4? Ne4 13.Ne4 f5-/+).

10.Nfd2 d5 11.Nc3+= c6 (11...Re8 12.h3=) 12.a4 (12.Qb3 Re8+=) 12...Be6= 13.Ba3 Re8 14.Qb3 Nd7 (14...Nf5 15.bc6 bc6 16.Qb7=) 15.Be7 (15.bc6 bc6 16.cd5 cd5 17.Be7 Qe7 18.Nd5 Qh4+=) 15...Re7 16.cd5 cd5 17.Nd5 Re8 18.Bc4 (18.Ne4? Nb6 19.Bc4 Nc4–+ (19...Nd5?! 20.Nc5–+; 19...Bd5?! 20.Bd5 Nd5 21.Nd2–+)) 18...Rc8 19.Nf4 Bc4 20.Nc4 Qc7 21.Na3 Bd4?? (better 21...Red8 22.Rfd1 Nf6+=) 22.Nd5+– Nc5 (22...Qe5 23.ed4 Qd4+–) 23.Qc4 Qd6 24.Qd4 (24.ed4?! Nd3 25.Qb3 Red8+–) 24...Nb3 (24...Red8 25.Rfd1 Nd3 26.Nf6 Kh8 27.Qd6 Rd6 28.Ne4 Rd7+–) 25.Nf6 (25.Nf6 Qf6 26.Qf6 Na1 27.Ra1+–) 1–0. Honegger,Rudolf – Kandioller,Wolfgang, Danube op Aschach, 1998.

10.Nfd2 d5 11.Nc3 Be6 12.a4 c6 13.cd5 cd5 14.Nb3 b6 (14...Rc8 15.Rc1+=) 15.Rc1 (15.a5 Rc8+=) 15...Ne8 (15...Rc8 16.Ba3+=) 16.f3 (16.Nd2 Nd6+=) 16...f5 (16...Nd6 17.Ba3+=) 17.fe4 (17.Ba3 Nf6+=) 17...fe4 18.Ba3 (18.Rf8 Bf8 19.Bg4 Nf5 20.Bf5 Bf5=+) 18...Rf7 (18...Rf1 19.Qf1 Nf5 20.Qf2=) 19.Rf7+= Bf7 20.Bg4 (20.Qd2 Nf5=) 20...Nd6 21.Nd2 Nef5 22.Qe2 Bh6 23.Nd1 Qh4 24.Bd6 Nd6 25.Nf2 Qg5 26.Nf1 (26.Rc3 Qe7=) 26...Nc4 (26...Qe7=) 27.Nh3 (better 27.Ne4!? de4 28.Rc4 Bc4 29.Qc4 Kf8 30.Bd7+=) 27...Qe7-/+ 28.Nf4 (28.Rc3 a6 29.ba6 Ra6=+) 28...Qa3 29.Rb1 (29.Qe1 Qa4 30.Bd7 Bf4 31.ef4 Na3-/+) 29...Ne3! 30.Qe3 (30.Qe3 Qe3 Double attack; 30.Ne3 Bf4 Remove defender) 30...Qe3 31.Ne3 Bf4 32.Kf2 h5 33.Be2 (33.Bd7!?-/+) 33...Rc8 34.g3 Bd6 (34...Bh6 35.Rb3–+) 35.Rb2 Kg7 36.Rc2 (36.Bd1 Be7–+) 36...Rc2 37.Nc2 Kf6 38.Ne3 (38.Bd1 Ke7–+) 38...Bb4 39.h4 (39.Ng2 Bc3 40.Ke3 g5–+) 39...Bc3 40.Nc2 g5 41.hg5 Kg5 42.Ke3 Be6 43.Bd1 (better 43.Kf2–+) 43...Bg4 44.Bg4 (44.Be2 Be2 45.Ke2 Kg4–+) 44...Kg4 (44...hg4?! 45.Kf2–+) 45.Kf2 (45.Ke2–+) 45…Bd2 0–1. tsodikovich (1880) – elmerx25 (1850), gameknot.com, 2018.

10.Nfd2 d5 11.cd5 Qd5? 12.Qc2 Qf5 13.Nc3 Ned5 14.Nce4 Ne4 15.Qe4 Qd7 16.a4 Re8 17.Qf3 c6 18.Bc4 Nb6 19.Bb3 1–0. nizinna – piosa2011, kurnik, 2011.

10.Nfd2 d5 11.cd5 Ned5!? 12.Nc3 Re8=.

10.Nfd2 Nf5 11.Nc3 Re8 12.Qc2N Now all is on e4 12...Qe7 13.a4 (13.Rac1 Bd7=) 13...h5 (13...Bd7 14.a5=) 14.Ba3 (14.Nd5 Nd5 15.cd5 b6=) 14...Bh6 (14...Bd7 15.h3=) 15.Kh1 (15.c5 Bd7+=) 15...h4 16.Bd1 (16.Nd5 Nd5 17.cd5 Be3 18.fe3 Ne3=+) 16...h3 (16...b6 17.Be2=+) 17.g3 (17.g4 Nh4 18.Nd5 Qd8 19.Nf6 Qf6 20.Ne4 Qe7=) 17...Be3 (better 17...Bd7-/+) 18.Nb3?? (better 18.fe3 Ne3 19.Qa2 Nf1 20.Nf1=) 18...Nd4-+ 19.Nd4 Bd4 20.Bc1 Qe5 21.Bf4 Qc5 (21...Bc3?! 22.Be5 Be5 23.Rc1=) 22.Bg5 (22.Rc1-+) 22...Qg5 23.Ne2 0-1. joamie - Lance5500 (2620), lichess.org, 2018. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.c4 e5 7.0-0 Nc6)

10.Nfd2 h5 11.Nc3 Bf5 12.a4 Re8 13.a5 Kh7 14.Qb3 Neg8 15.b6 cb6 16.ab6 a6 17.c5 (17.Ra2 h4+/–) 17...Rc8 (17...dc5 18.Rfd1 cd4 19.ed4 A) 19...Qd4 20.Nce4 Ne4 21.Bd4 Bd4 22.Ne4 Ba1 23.Nd6 (worse is 23.Ra1 Be4 24.f3 Bc6 25.Qf7 Kh6+–; 23.Qf7?! Bg7 24.Nd6 Re7+/–) 23...Re2 24.Qf7 (24.Ra1?! Re7+/–) 24...Kh6 25.Qb7+–; B) 19...Ng4+=) 18.Qf7 Re7 19.Qb3 dc5 20.Nc4 cd4 21.ed4 Qd4 22.Nb5 Qd7 23.Nbd6 Rc6 24.Rfd1 Qe6 25.Qb4 Nh6 26.Ra6?? Nd5?? 27.Qb5? Bb2 28.Rd5 Bg7?? 29.Nb7?? Rb7–+ 30.Rd6?? Rd6 31.Nd6 Qd6 32.Ra7 Qd7 33.Rb7?? Qb7–+ 34.Qc5 Ng4 35.Qc7 Bc8 36.Qb7 Bb7 37.h3 Nf2! (37...Nf2 38.Kf2 Bd4 39.Kf1 Bd5–+) 0–1. elsh1403 (1605) – rolnik31 (1920), kurnik, 2011.

10.Nfd2 c6

11.Nc3 d5 12.Ba3 Re8 13.Qb3 Be6 14.Rac1 (14.bc6 bc6 15.cd5 Ned5 16.Nce4 Ne4 17.Ne4 Nf4=) 14...Rc8 15.bc6 Nc6 (15...bc6 16.cd5 cd5 17.Bb5+=) 16.Qb7 Rc7? (better 16...Na5!? 17.Qa6 Nc4 18.Nc4 dc4+–) 17.Qa6+– Bc8 (17...Qd7 18.cd5 Bd5 19.Bb5+–) 18.Qa4 Bd7 19.cd5 (worse 19.Nd5 Nd5 20.cd5 Nd4-/+) 19...Nd5 20.Nd5 Nd4 21.Qd1 Rc1 22.Bc1 Ba4? (better 22...Ne2!? 23.Qe2 Re5+–) 23.Qa4 Ne2 24.Kh1 Qd5?? (better 24...Re5 25.Qa6 Nc1 26.Rc1 Rd5+– (26...Qd5?? 27.Rc8 Bf8 28.Qa3+–)) 25.Qe8+– Bf8 26.Ba3 Kg7 (26...h6 27.Qf8 Kh7 28.Ne4 g5 29.Nf6 Kg6 30.Nd5 Kf5 31.Qf7 Ke4 32.Nf6 Ke5 33.Nd7 Ke4 34.Nc5 Ke5 35.Qe6) 27.Bf8 Kf6 28.Qe7 Kf5 29.f3 Qd2 (29...g5 30.fe4 Kg4 31.ed5 Nf4 32.Qf7 a6 33.Qh7 Ng2 34.Kg2 a5 35.h3) 30.g4 1–0. DEFFM – jangazy, freechess.org, 2018.

11.Nc3 d5 12.Ba3 Re8 13.Rc1 Bd7 (13...cb5 14.cb5 Bf5 15.Qb3+=) 14.Qb3 Qa5 (14...Bf5 15.Bc5+=) 15.Bb4+– Qb6 16.Be7 Re7 17.cd5 cd5 (17...cb5 18.Bb5 Bb5 19.Nb5+–) 18.Nd5 Nd5 19.Qd5 Be6 (19...Bf5!?+–) 20.Qe4+– Rae8 21.d5 (21.Qb1 Qa5 22.Nc4 Qd8+–) 21...Bd7 22.Qb4 (22.Qd3 Qa5 23.d6 Re6+–) 22...a5 (22...Re3 23.fe3 Re3 24.Kh1 Re2 25.a4+–) 23.Qc5 Qf6 24.b6 (24.Nc4 Rc8 25.Qb6 Bf5+–) 24...h5 (24...a4 25.Nc4+–) 25.d6 (25.Qa5 h4+–) 25...Re5 (25...Re6 26.Bf3 Rd6 27.Ne4 (27.Qa5?! Rb6 28.Ne4 Qb2+–) 27...Re4 28.Be4 Rb6 29.Qc7+–) 26.Qc7 Bc6 27.d7 Rd8 (27...Rf8 28.Rc6! bc6 29.b7+–) 28.Rc6! bc6 (28...bc6 29.b7 Passed pawn; 28...Qc6 29.Qd8 Deflection (29.Qd8 Overloading)) 29.b7 (29.b7 Rd5 30.Ne4+–) 1–0. DEFFM – jangazy, freechess.org, 2018.

11.Nc3 d5 12.Ba3 Re8 13.bc6 bc6 14.Rb1 h5 (14...Nf5 15.h3+=) 15.Qa4+/– Bf5 (15...Bd7 16.Bc5+/–) 16.Rb7 dc4 17.Rc1 Ned5 18.Bc4 (18.Nc4 Bc8 19.Ra7+/– (19.Qc6?! Nc3 20.Rc3 Bb7 21.Qb7 Rb8 22.Qa7 Rb1 23.Rc1 Qb8 24.Qb8 Reb8=)) 18...Nc3?? (better is 18...Bc8 19.Ra7 Ra7 20.Qa7 Bd7+/–) 19.Bf7+– (19.Rc3?! Nd5 20.Qc6 Nc3 21.Bf7 Kh7 22.Qc3 Rh8+–) 19...Kh8 (19...Kh7 20.Rc3 Bd7 21.Be8 Qe8 22.Qc2+–) 20.Rc3 Ng4 (20...Re5 21.Rc6 (21.de5?! Qd2 22.Rc1 Ng4+–) 21...Bd7 22.de5 Bc6 23.Qc6 (23.ef6?! Ba4 24.fg7 Kg7 25.Be8 Kh8 26.Bb2 Kg8 27.Bf7 Kf8 28.Ba3 Kg7 29.Be8 Kg8 30.Bf7 Kg7=) 23...Qd2 24.Rb1+–) 21.h3 (21.Be8 Qh4 22.Rb1 Rb8=) 21...Nh6 (21...Nf6 22.Rc1+– (worse is 22.Rc6 Bd7+–)) 22.Be8 Qh4 (22...Qe8 23.Qc6 Qc6 24.Rc6 g5+–) 23.Be7 g5 24.Bc6 Bh3 25.Be4 Be6 26.Bd6 Rf8 27.Bf8 Ng4 (27...Qh2 28.Kh2 Bf8 29.Qe8 Ng4 30.Kg1 Bf7 31.Qf8 Bg8 32.Rh7) 28.Bg7 1–0. zunsurfer (2040) – lletram22 (1935), gameknot.com, 2014.

7.0-0 Nbd7

8.a3 Kh8 9.Nc3 Ne8 10.d4 ed4 11.Nd4 c5 12.Nf3 cb4 13.ab4 Ne5 14.Ne5 Be5 15.h3 Nf6 (15...Be6 16.Qd2+/–) 16.Na4 (better is 16.f4!? Bc3 17.Bc3+–) 16...Bb2 17.Nb2 Be6 18.Rc1 (better is 18.Qd4!?+/–) 18...Qb6+= 19.b5 a6 20.ba6 (20.Na4 Qd8+/–) 20...ba6 21.Na4 Qb4 22.Rb1 Qa3? (better is 22...Qa5+/–) 23.Qc2?? (better is 23.Ra1 Qb4 24.Qd4+–) 23...Rab8 24.Ra1+/– Qb4 25.Rfb1 Qa5 26.Nc3 Qc7 27.Ra6+/– Rb1 28.Qb1 Bc4 29.Bc4 Qc4 30.Ra3 Rc8 31.Qb3 Qb3 32.Rb3 Kg7 33.Ne2 Rc2 34.Nd4 Rd2 35.Kf1 Ne4-/+ 36.f3 Ng3 37.Kg1= Ne2 38.Ne2+= Re2 39.Kf1 Rd2 40.e4 d5 41.ed5 Rd5 42.Re3 Rd2 43.Re2 Rd1 44.Kf2 Rh1 45.Kg3 h5 0–1. Fournier,Frederic (1715) – voyvodine (1725), rated blitz game (3/0), 2002.

8.a4 e4 9.Ne1 Re8 10.d4 h5 11.Nc2 Nf8 12.a5 a6 13.Nc3 N8h7 14.b5 Ng4 15.Nd5 Be6 16.Ncb4 ab5 17.cb5 c5 (17...Nhf6!? 18.Nf4 d5+/–) 18.bc6+– bc6 19.Nc6 Qh4 20.Bg4 Bg4 21.Qb3 Ng5 22.Nde7 Kh7 23.f4?? (better is 23.Qd5 Bf6 24.Ba3+/– (worse is 24.Qd6 Be7 25.Ne7 Re7=)) 23...ef3+= 24.e4? (better is 24.Qc2 fg2 25.Rf7 Nh3 26.Kg2-/+) 24...fg2–+ 25.Rf7 Nf7?? (better is 25...Rf8 26.Ng6 Kg6 27.Ne7 Kh6 28.Rf8 Rf8–+) 26.Qf7-/+ Qg5 (better is 26...Qf6 27.Qf6 Bf6-/+) 27.Re1?? Rf8–+ 28.h4 Rf7 29.hg5 Bh3 30.Nf5 gf5 31.Re3 Bg4 32.ef5 Bf5 33.Kg2 Rc8 34.Nb4 d5! 35.Kg3 Be4 36.Ra3 Rb8 37.Bc3 Rf3 (37...Rf3 38.Kh2 Rbf8 39.g6 Kg6–+) 0–1. Marchio,Enrico (2270) – Kraemer,Martin (2210), Oberliga Ost–B, 2004. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 d6 5.e3 Nbd7 6.Be2 0-0 7.0-0 e5)

8.a4 Qe7 9.Nc3 c6 (9...c5 10.bc5 dc5 11.d3=) 10.Qc2 (10.d4 Re8=) 10...b6 (10...e4 11.Ne1=) 11.d3 (11.d4 c5 12.bc5 bc5 13.de5 Ne5 14.Ne5 de5+=) 11...Bb7 (11...a6 12.d4=) 12.a5+= ba5 13.Ra5 d5 (13...c5 14.bc5 Nc5 15.Rfa1+=) 14.c5+– Rfe8 (14...Rfb8 15.Qa4+=) 15.Rfa1 a6 16.h3 (16.d4 Ng4+–) 16...Nh5 (16...Reb8 17.d4+=) 17.g4 (better 17.d4+–) 17...d4? (17...Nhf6 18.Kg2+=) 18.ed4 (better 18.Ne4!? Nhf6 19.Nd6+– (19.ed4?! Ne4 20.de4 ed4+=)) 18...ed4+= 19.Ne4 (19.gh5? dc3 20.Bc3 Bc3 21.Qc3 Qe2–+) 19...Nf4 20.Bf1 (worse 20.Bd4 f5 21.Qa2 Kh8 22.Bg7 Qg7-/+; worse 20.Nd4 Bd4 21.Bd4 f5 22.gf5 gf5=) 20...f5 (better 20...Ne5!? 21.Nd4 Ned3 22.Bd3 Nd3=) 21.Nd6 fg4 22.hg4 (22.Qc4 Kh8 23.hg4 Reb8+–) 22...Qe6 (22...Ne5 23.Ne5 (worse 23.Nd4 Qh4+=) 23...Be5 24.Ne8+–) 23.Nb7?? (better 23.Qc4 Qc4 24.dc4+– (24.Nc4?! Ne5 25.Nce5 Be5+–)) 23...Qg4-/+ (23...Qg4 24.Kh2 Qf3 25.Qb3 Kf8–+) 0–1. GuestTCKV – GuestNJLT, freechess.org, 2017.

8.Qb3 e4 9.Ne1 a5 10.a3 Qe7 11.d4 ed3 12.Nd3 Nb6 13.Nd2 Bd7 14.b5 a4 15.Qc2 Bf5 16.Nf3 Rfe8 17.Nd4 Be4 18.Bf3 Nbd7 19.Be4 Qe4 20.Rac1 Nc5 21.Nc5 dc5 22.Ne2 Qc2 23.Rc2 Ne4 24.Bg7 Kg7 25.f3 Nd6 26.Kf2 Rad8 27.Nf4 Rd7 28.Rb1 Nf5 29.Re2 Re5 30.g4 Nd6 31.Rc1 g5 32.Nh5 Kg6 33.Ng3 f5 34.h3 Rde7 35.gf5 Nf5 36.Nf5 Rf5 37.e4 Rf6 38.Rd1 b6 39.Rd8 Kf7 40.Kg3 Ke6 41.Red2 h6 42.R2d3 Rff7 43.R3d5 Rf6 44.Rd3 (better is 44.Ra8!?+/–) ½–½. Buettner,Ulrich – Schneider,Bernd (2420), Solingen–ch, 2003.

8.b5 c5 9.a4 a5 10.h3 Nb6 11.Qc2 Bf5 12.d3 Re8 13.e4 Bd7 14.Nc3 Nh5 15.Nd5 Nd5 16.cd5 Nf4 17.Nh2 Qg5 18.Kh1 Bh3 19.gh3 Nh3 20.Bg4 Qh6 21.Bc1 g5 22.Qe2 Nf4 23.Qf3 Ng6 24.Qf5 Nh4 25.Qg5 Qg5 26.Bg5 Ng6 27.Bf5 h6 28.Be3 Nh4 29.Bg4 Kh8 30.Rg1 Rg8 31.Rg3 Bf8 32.Rag1 Ng6 33.Bf5 Kh7 34.Nf3 Rc8 35.Nh4 Rc7 36.Ng6 fg6 37.Rg6 Rg6 38.Rg6 Kh8 39.Bh6 Bh6 40.Rh6 Kg7 41.Rh7 1–0. Abdullaevich (1840) – SchachHolzig (1835), lichess.org, 2019.

8.Qc2 a5 9.a3 Re8 10.d3 ab4 11.ab4 Ra1 12.Ba1 c6 13.Nc3 Nf8 14.Bb2 Ne6 15.Ra1 Nc7 16.h3 d5 17.Bf1 Nd7 18.Qb3 Nb6 19.cd5 Nbd5 20.Nd5 Qd5 21.Qc2 Qd8 22.Rb1 Bf5 23.e4 Bc8 24.Rd1 Nb5 25.Qc5 The pressure on e5 grows 25...Qe7 26.Ra1 Qc5 27.bc5 Bd7 28.Be2 f6 29.d4 (29.Kf1!?+=) 29...Nd4+= 30.Nd4 ed4 31.Bd4 Re4 32.Be3 Re8 33.Rb1 Bc8 34.Bc4 Kh8 35.g4 Bf8 36.Bd4 Bg7 37.Be3 ½–½. Stocek,J (2570) – Havlikova,K (2295), Pardubice CZE, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5)

8.Qc2 Re8 9.Nc3 a5 10.a3 c6 11.d4 Bf8 12.Rfd1 e4 13.Nd2 d5 14.b5 Re6 15.a4 Bb4 16.Ba3 Nb6 17.Rdb1 (17.c5 Ba3 18.Ra3 Nbd7+/–) 17...cb5 (17...Bc3 18.Qc3 dc4 19.Bc4 Nc4 20.Nc4 cb5 21.Rb5+=) 18.ab5 Ba3 19.Ra3 dc4 (19...Nc4 20.Bc4 dc4 21.Rba1+= (21.Nde4? Ne4 22.Ne4 Re4–+; 21.Nce4? Ne4 22.Ne4 Re4–+)) 20.Nc4 (20.Rba1!?+/–) 20...Nc4+= 21.Bc4 Re7 22.b6 Be6 23.Qb3 Bc4 24.Qc4 Re6 25.Qb5 Ra6 26.Rab3 Rc6 27.h3 Qd6 28.Na4 Nd5 29.Nc5 Rab6 30.Qa5 Rb3 31.Nb3 b6 32.Qa8 Kg7 33.Nd2 Nc3 34.Ra1 Qd5 35.Qe8 Qe6 36.Qb8 Rc8 37.Qb7 Nd5 38.Kh1 Rc2–+ 39.Nf1 Rf2 40.Kg1 Rc2 41.Qb8 Qf6 42.Qe5 Qe5 43.de5 f5 44.ef6 Kf6 45.Ra8 b5 46.Rd8 Ke6 47.Re8 Ne7 48.Ng3 Rc4 49.Kf2 b4 50.Ke1 Kd7 51.Rb8 Nd5 52.Nf1 Kc7 53.Rb5 Kc6 54.Rb8 Rc1 55.Ke2 Nc3 56.Kf2 Rc2 57.Kg1 Kc5 58.Kh2 Kc4 59.Rd8 Nd5 60.Ng3 b3 61.Ne4 b2 62.Rb8 Nb4 63.Nd6 Kb3 (63...Kb3 64.Nb5 b1Q 65.Nd4 Ka3 66.Nc2 Qc2 67.Ra8 Kb2–+) 0–1. Eising,Johannes – Marovic,Drazen, EU–chT (Men), 1965.

8.Nc3 c5 9.bc5 dc5 10.d4 ed4 11.ed4=.

8.Nc3 Qe7 9.Rc1 e4 10.Ne1 c6 11.d3 a5 12.b5 ed3 13.Nd3 Nb6 14.bc6 bc6 15.c5 dc5 16.Ba3 Nfd7 17.Na4 Increasing the pressure on the isolated pawn on c5 17...Na4 18.Qa4 Ba6 19.Rfd1 Rfd8 20.Bf3 Bd3 21.Rd3 Ne5 22.Rd8 (22.Bc5? Nf3 23.Kh1 Qh4 24.Qh4 Nh4 25.Rd8 Rd8–+) 22...Qd8 23.Be2 Qd2 24.Qc2 Qc2 25.Rc2 Nd7 26.Bc5 Rb8 27.Ba3 Bf8 28.Bb2 c5 29.a4 Rb4 30.g3 Nb6 31.Ba3 Rb1 32.Rc1 Rc1 33.Bc1 c4 34.Bd2 Bb4 35.Bb4 ab4 36.a5 b3 37.Bd1 Nc8 38.Kf1 Kf8 39.Ke2 Ke7 40.Kd2 Kd6 41.f4 (41.Be2 Kc5-/+) 41...Kc5–+ 42.e4 Kd4 43.e5 Na7 44.Kc1?? (better is 44.a6–+) 44...Kc3 45.Bf3 b2 46.Kb1 Nb5 47.Ka2 Kc2 48.Be4 Kc1 (48...Kc1 49.Bb1 Nc3 50.Ka3 Nb1 51.Kb4 Na3–+) 0–1. Mrykhin,Igor (2125) – Kryakvin,D (2570), ch–Southern FR Men, 2011.

8.d3 a5 9.b5 Re8 10.Nbd2 b6 11.Ne1 Bb7 12.Bf3 e4 13.de4 Ne4 14.Bg7 Kg7 15.Qc2 Ndc5 16.Ne4 Be4 17.Be4 Re4 18.Nf3 Qf6 19.Rad1 Rae8 20.Rd4 h6 21.Re4 Re4 22.Nd4 Qe7 23.Rd1 Kg8 24.h3 Qf6 25.Nb3 Re5 26.Nc5 Rc5 27.Rd5 (27.Rd4 Rg5+=) 27...Qa1 28.Kh2 Rd5 29.cd5 Qe5 30.Kg1 Qd5 31.Qc7 Qb5 32.Qd6 Qb1 33.Kh2 Qa2 34.Qb6 a4 35.Qd8 Kh7 36.Qf6 a3 37.h4 h5 38.g4 (better is 38.f3!?-/+) 38...Qe6–+ 39.Qc3 Qd6 40.Kh3 (40.Kg2 a2 41.Qa1 Qc6 42.Kg3–+) 40...hg4 41.Kg4 Qd1 42.Kg5 a2 0–1. Ferretti,Folco (2315) – Vuelban,Virgilio (2420), Bologna, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.0-0 Nbd7)

8.d3 Re8 9.Qc2 a5 10.a3 b6 (10...ab4 11.ab4 Ra1 12.Ba1=) 11.Nc3+= Bb7 Black prepares the advance e4 12.Rfd1 Qe7 13.Qb3 e4 14.de4 Ne4 15.Ne4 (15.Nd5 Bd5 16.cd5 ab4 17.Bg7 Kg7 18.ab4 Ne5+=) 15...Qe4 16.Bg7 Kg7 17.Qc3 Kg8 18.Rd4 Qe7 19.Rad1 ab4 20.ab4 (20.Qb4?? c5 21.Rd6 cb4 22.Rd7 Qe4 23.ab4 Ra2-+) 20...Ne5 21.Rf4 (21.Ne5 Qe5 22.Qb3 Ra7=) 21...Nf3 22.Bf3 Bf3 23.gf3 Qe5 24.Qd4 Qd4 25.Rfd4 Re5 26.b5 (26.f4 Ree8=) 26...Rc5 27.Re4 (27.Rf4 Ra4=+) 27...Kf8 (27...f5!? 28.Red4 Ra4-/+) 28.Rdd4=+ Re8 (28...h5 29.h4=+) 29.Kg2= f5 30.Re8 Ke8 31.f4 Ke7 32.f3 Ke6 33.e4 c6 34.bc6 Rc6 35.Kf2 Rc5 36.Ke3 b5 37.cb5 Rb5 38.h4 (38.Rd2 d5=) 38...Rb2 (38...fe4 39.fe4 Rh5 40.Ra4=+) 39.Rd2 Rb3 40.Rd3 Rb1 41.Ra3 (41.h5 gh5 42.Rd5 Rb3 43.Kf2 fe4 44.fe4 h4=) 41...Rh1 42.Ra6 fe4 43.fe4 Rh3 44.Kd4 Rh4 45.Ke3 Rh3 46.Kd4? (better 46.Ke2-/+) 46...Rf3-+ 47.e5? (47.Ra8 Rf4 48.Re8 Kd7 49.Rh8-+) 47...Rf4 48.Ke3 Ke5 49.Ra5 (49.Ra7 h5-+) 49...d5 50.Ra7 h5 51.Re7 Kf6 52.Rd7 Rf5 53.Rd8 (53.Rh7 Kg5-+) 53...h4 54.Rh8 Rh5 55.Rf8 Ke5 56.Rf1 (56.Re8 Kd6 57.Rd8 Ke7-+) 56...h3 57.Rh1 h2 58.Kf3 d4 59.Kg2 Kd5 60.Re1 (60.Kf3-+) 60...h1Q! 61.Rh1 Rh1 62.Kh1 d3 (62...d3 63.Kg2 d2 64.Kh3 d1Q 65.Kg2 Ke4 66.Kg3 Qg1 67.Kh3 Kf4 68.Kh4 Qg3) 0-1. pacal56 (2170) - shaf (2280), Rated Blitz game, lichess.org, 2015.

8.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0-0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0-0).

8.h3 b6 9.b5 Bb7 10.a4 Bf3 11.Bf3 Rb8 12.Bc6 Qe7 13.d4 ed4 14.Bd4 Ne8 15.Bg7 Kg7 16.Qd4 Ne5 17.f4 Kg8 18.fe5 Rd8 19.ed6 Rd6 20.Qf4 Qf6 21.Qf6 Rf6 22.Be8 Rf1 23.Kf1 Re8 24.Ke2 Kg7 25.Nd2 Re6 26.Rf1 c6 27.Rf4 cb5 28.cb5 Re5 29.g4 Rc5 30.h4 Rc2 31.Kd3 Ra2 32.g5 Ra4 33.Ra4 h6 34.Ra7 hg5 35.hg5 Kh7 36.Rf7 Kg8 37.Rf6 Kg7 38.Rb6 Kh7 39.Ne4 Kg7 40.Nf6 Kf7 41.Rd6 Ke7 42.Rd5 Kf7 43.b6 Ke6 44.b7 Kf7 45.b8Q Ke6 46.Qb6 Kf7 47.Rd7 Kf8 48.Qb8 1–0. Abdullaevich (1605) – ChessPlayer7a, lichess.org, 2018.

8.h3 e4 9.Ne1 Re8 (9...c5 10.bc5 dc5 11.f3=) 10.d3 ed3 11.Bd3 (11.Nd3 a5=) 11...Ne5=+ 12.Nf3 (12.Be2 Be6 13.Nd2 a5=+) 12...Nd3 13.Qd3 Bf5 (13...a5 14.a3=+) 14.Qb3 b6 (14...a5 15.ba5 Qc8 16.Bd4=+) 15.Nd4= Be4 16.Nd2 Bb7 17.b5 (17.Rad1 a5 18.b5 Qe7=) 17...a5 18.a4 Qd7 (18...Qe7 19.Rfe1=+) 19.Rac1 (19.Rad1 Qe7=) 19...Qe7=+ 20.Qc2 Kh8 (20...Ne4 21.Ne4 Be4 22.Qd2=) 21.Ne2 (21.Rfd1 Rad8=) 21...Rad8 22.Rfd1 Nd7 (22...Kg8 23.Nf4=) 23.Bg7 Kg7 24.Nf4 Nc5 (24...Qg5 25.Nd5 Rc8 26.Nf3+=) 25.Nd5 Bd5 26.cd5 Qh4 27.Qc4 Qh5 28.Qd4 Kg8 29.f3 (29.Re1 Re5 30.e4 Rc8+=) 29...Rd7= 30.e4 (30.Re1 Rde7=) 30...Rde7 31.Rc3 f5 32.Re3 (32.Re1 Qh4 33.Re2 h6=) 32...fe4 (32...f4 33.Rc3=) 33.Rde1 Re5 34.fe4 ½–½. Ruhle,Ernst Albrecht – Senft,R, Wangs Pizol op, 1996.

8.h3 Nh5 9.Nh2 Nhf6 10.d4 Ne4 11.de5 Ne5 12.Qc2 f5 13.Nf3 Be6 14.Ne5 de5 15.c5 Qe7 16.Bc4 Rad8 17.Rd1 Kh8 18.Be6 Qe6 19.Nc3 Qc4 20.Rac1 Nc3 21.Bc3 Rd1 22.Qd1 Qe6 23.a3 h5 24.Qd2 Kh7 25.Rd1 Rf7 26.Qd5 Qd5 27.Rd5 e4 28.Bg7 Kg7 29.b5 Kf6 30.a4 Ke6 31.Rd4 Rd7 32.Kf1 Rd4 33.ed4 Kd5 0–1. Abdullaevich (1965) – Bold123 (2185), lichess.org, 2019.

8.h3 h6 9.a4 Kh7 10.d3 Ng8 11.e4 f5 12.ef5 gf5 13.Nh2 Ndf6 14.Nd2 Qe8 15.d4 Bd7 16.de5 de5 17.Ndf3 Ne4 18.Qc2 Rd8 19.Ng4 fg4 20.hg4 Bg4 21.Qe4 Bf5 22.Qh4 Bf6 23.Qh2 Qg6 24.Nh4 Bh4 25.Qh4 Rd2 26.Bh5 Qg7 27.Bc1 Rd4 28.Qg3 Bd3 29.Rd1 Qg3 30.fg3 Bc4 31.Rd4 ed4 32.Bf3 Nf6 33.Bb7 Rb8 34.Bf3 Rb4 0–1. Abdullaevich (1765) – Jesim (1930), lichess.org, 2019.

8.Qb3 Re8

9.Nc3 c6 10.d4 e4 11.Nd2 h5 12.a4 Nf8 13.b5 Bg4 14.Ba3 (14.Bg4 hg4 15.Qc2 d5+=) 14...Ne6 (14...Be2 15.Ne2 Rc8 16.f3+=) 15.h3 (15.Bg4!? hg4 16.bc6 bc6 17.Qb7+=) 15...Be2= 16.Ne2 Ng5 17.Rab1 Qd7 18.Rfc1 Rad8 19.bc6 bc6 20.Qb7 Qf5? (20...Re7 21.Qd7 Red7 22.d5 cd5 23.cd5+=) 21.Ng3 (21.Qc6 d5+–) 21...Qe6? (better is 21...Qa5 22.Rb4 h4+=) 22.Qc6 Nh3? 23.gh3 Qh3 24.Nde4?? h4? 25.Nf6+– Bf6 26.Qg2 Qg2 27.Kg2 hg3 28.Kg3 d5 29.cd5 Rd5 30.Rc5 Rd6 31.Ra5 Rd7 32.Rbb5 Kg7 33.Bc5 Rh8? 34.Ra7 Bh4 35.Kf3 Rd5 36.Bf8! (36.Bf8 Kf8 37.Rd5+–) 1–0. orangutanb4 (2020) – johnny75 (1730), kurnik, 2012.

9.d4 e4 10.Nfd2 c6 11.Nc3 d5 (better is 11...Qe7!?+=) 12.cd5+/– Nd5 13.Nd5 cd5 14.Qd5 Nb6 (better is 14...Qe7!? 15.a3 Nb6+/–) 15.Qd8+– Rd8 16.Rfc1 (16.Ne4 f5 17.Nc5 Nd5+–) 16...Bf5 (16...f5 17.Rc7+/–) 17.a4 (17.g4!? Be6 18.Ne4 Na4+–) 17...Rac8 18.a5 Nd5 19.b5 Nb4 20.Rc8 Rc8 21.Rc1 Rc1 22.Bc1 Nd3 23.Bd3 ed3+/– 24.f3 Bd7 25.b6+/– ab6 26.ab6 Bf8 27.Kf2 Bb4 28.e4+/– Ba5 29.Ke3 Bb6 30.Kd3 Bb5 31.Ke3 Kf8 32.e5 Ke7 33.Ke4 Ke6 34.d5+– Ke7 35.Ba3 Ke8 36.Nb3 Bf1 37.g3 Bg2 38.Nc5 Bc5 39.Bc5 b5 40.Ke3 Bf1 41.g4 Bc4 42.Kd4 h6 43.f4 Kd7? 44.f5 gf5 45.gf5 h5 46.Ba3 h4 47.d6 h3 48.Kc5 Bf1?? 49.Bc1 Bc4 50.Bd2 Bd3 51.Ba5 Bc4 52.Kd4 Bf1 53.Ke4 Bg2 54.Kf4 Kc6?? 55.Kg5 Kd5?? 56.Kf6 Kc6 57.Ke7 Bd5 58.e6 fe6 59.fe6 Kc5 60.d7 Kc6 61.d8Q b4 62.Bb4 (62.Bb4 Be6 63.Qd6 Kb5 64.Qc5 Ka4 65.Bd2 Kb3 66.Qc3 Ka2 67.Bc1 Bd5 68.Qb2#; 62.Qb6#) 1–0. carocan (1705) – kwako4444, kurnik, 2011.

8.Qc2 Qe7

9.Nc3 c6 10.b5 Nc5 11.d3 Bf5 12.bc6 bc6 13.Nd2 Qc7 14.Nb3 Ncd7 15.Rac1 Rfe8 16.Rfd1 Rab8 17.Rd2 h5 18.Qd1 Bh6 19.Bf3 Nf8 20.Ne4 Be4 21.de4 Red8 22.Bc3 Qe7 23.Na5 Rbc8 24.c5 Ne8 25.Qa4+– Ne6 26.cd6 Rd6 27.Qa3 Ng5+= 28.Rd6 Nd6 29.Qc5 Bg7 30.Nc6 Qe6 31.Rd1?? Bf8=+ 32.Ba1? Nc4–+ (32...Nc4 33.Ne7 Be7 34.Qa7 Qf6–+; 32...Nge4 33.Qc2+/–) 0–1. Steinbacher,Matthias (2335) – Wahls,Matthias (2570), Neu Isenburg op rapid, 1992.

9.d4 Re8 10.a4 a6 11.b5 ed4 12.Nd4 Nc5 13.Nd2 Nfe4 14.N2b3 Nb3 15.Nb3 (< 15.Qb3 Nd2 16.Qc2 Nf1 17.Rf1 Be5–+) 15...Bb2 16.Qb2 Qe5 17.Qe5 Re5 18.Bf3 f5 19.Be4 Re4 20.Rfc1 b6 21.Nd4 Bd7 22.Kf1 a5 23.Ke2 Rae8 24.Kd3 Kf7 25.Re1 f4 26.Nc2 Bf5 27.Kc3 fe3 28.Re3 Rf4 29.Re8 Ke8 30.Re1 Kd7 31.Ne3 Rf2 32.Nf5 Rf5 33.Re3 Re5 34.Rh3 h5 35.Rg3 g5 36.Rf3 Ke7 37.h3 g4 38.hg4 hg4 39.Rg3 Rg5 40.Kd4 Ke6 41.Ke4 Rg8 42.Kf4=+. carocan (1765) – bialanoga (1795), kurnik, 2011.

8.Nc3 a5

9.a3 ab4 10.ab4 Ra1 11.Qa1 c6 12.d4 e4 13.Nd2 d5 14.cd5 cd5 15.b5 Re8 16.Ba3 Nf8 17.Qa2 h5 18.Rc1 h4 19.h3 N8h7 20.Na4 Ng5 21.Bc5 Bf5 22.Kf1 (22.b6 Qd7+/–) 22...Qd7 (better is 22...Qb8!? 23.Kg1 Qd8=) 23.Nb6+/– Qe6 (better is 23...Qd8!?+/–) 24.Qa7+– Bh3 25.gh3 Qh3 26.Ke1 Qh1 (26...Qg2!? 27.Qb7 Nh3 28.Nd5 Nd5 29.Qd5 Qf2 30.Kd1 Qe3+–) 27.Nf1+– h3 28.Kd2?? (28.Bd6 Bf8 29.Bf8 Rf8 30.Rc5+/–) 28...Nf3+= 29.Bf3 Qf3 30.Qb7? (30.Ng3 Qf2 31.Ne2–+) 30...Qf2–+ 31.Kc3 Ng4?? 32.Qd7+= Re6 33.Nd5 Qe2?? 34.b6 Qd3 35.Kb2 Ne3 36.Nfe3 Qd2 37.Rc2 Qa5 38.b7 Ra6 39.b8Q (39.b8Q Kh7 40.Qh3 Bh6 41.Qh6 Kh6 42.Qh8 Kg5 43.Rg2#) 1–0. orangutanb4 (1975) – kezojek (1820), kurnik, 2011.

9.a3 e4 10.Nd4 c6 11.d3 ed3 12.Qd3 ab4 13.ab4 Ra1 14.Ra1 Ne5 15.Qd1 d5 16.cd5 Nd5 17.Qb3 Nc3 18.Bc3 Qc7 19.h3 Re8 20.Ra8 Bd7 21.Qa3 Ra8 22.Qa8 Qc8 23.Qa7 Be8 24.Kf1 Nd7 25.Bf3 Nf8 26.Ne2 Bd7 27.Bg7 Kg7 28.Nc3 Ne6 29.Ne4 f6 30.g4 (30.Kg1 Qc7+=) ½–½. Fabisch,Christian (2325) – Titz,Heimo (2135), AUT–chT2S, 1996.

9.b5 Qe7=.

8.Nc3 b6

9.a4 a5 10.b5 Bb7 (10...Re8 11.d4 (11.e4 Nc5 12.Qc2 Bb7 13.d3 Nfd7 14.Nd5 f5 15.ef5 gf5 16.d4+=; 11.Qc2 Nc5 12.e4 Bb7 13.d3 Nfd7 14.Nd5 f5 15.ef5 gf5 16.d4+=; 11.d3 Nc5 12.d4 ed4 13.Nd4 Bb7 14.Bf3 Bf3 15.Qf3 Nfd7 16.Rad1=) 11...Qe7 12.Qc2 h6 13.de5 Ne5 14.Ne5 de5 15.Nd5 Qd6 16.Ba3+/–; 10...Qe7 11.d4 (11.d3 Bb7 12.e4 Rae8 13.Bc1 Nc5 14.Qc2 Qd7 15.Re1 Nh5 16.Nd5=; 11.e4 Nc5 12.Qc2 Bb7 13.d3 Rac8 14.Bc1 h6 15.Rb1 Nfd7 16.Nd5=; 11.Qc2 Bb7 12.e4 Nc5 13.d3 h6 14.Bc1 Rae8 15.Rb1 Qd7 16.Nd5+=) 11...Re8 12.Qc2 Bb7 13.d5 Rac8 14.e4 Bh6 15.Rad1 Nc5 16.Rfe1+=) 11.d4 (11.d3 Qe7 12.e4 Rae8 13.Qc2 Nc5 14.Bc1 Qd7 15.Ng5 h6 16.Nf3=; 11.Qc2 Re8 12.e4 Nc5 13.d3 Nfd7 14.Nd5 f5 15.ef5 gf5 16.d4+=; 11.Rb1 Qe7 12.d3 Rae8 13.e4 Nc5 14.Bc1 Nfd7 15.Nd5 Qd8 16.Qc2=) 11...e4 (11...Re8 12.d5 Nc5 13.Qc2 Bc8 14.e4 Nh5 15.Bc1 Nf4 16.Be3+=) 12.Nd2 Re8 (12...Qe7 13.Qc2 Rad8 14.d5 Rde8 15.Nb3 h6 16.Rad1+=) 13.d5 (13.Qc2 Qe7 14.Rfd1 Qe6 15.Rac1 Rac8 16.d5+=) 13...Nc5 (13...Bc8 14.Rb1 Nc5 15.Nb3 Nb3 16.Qb3=) 14.Qc2 Will e4 fall? (14.Nb3 Bc8 15.Nd4 Qd7 16.f3=) 14...Qe7 (14...Bc8 15.Rad1 Bf5 16.Nb3+=) 15.Nb3 (15.Rad1 Bc8 16.Nb3+=) 15...Nfd7 (15...Nb3 16.Qb3+=) 16.Nd4 Qg5 17.g3 h5 18.h4 Qe7 19.Nc6 Qf8 20.Rfc1 Nf6 21.Qd1 Bc8 22.Ra3 Bg4 23.Kg2 Be2 24.Ne2 Ng4 25.Bg7 Qg7 26.Qd4 Qd4 27.Ned4 Nd3 28.Rf1 Nb2 29.Rc1 Ne5 30.Ne5 Re5 31.Kf1 Nd3 32.Rb1 Nc5 33.Kg2 Rae8 34.Nc6 Rf5 35.Rf1 Nd3 36.f4? (36.Rd3 ed3 37.Rd1 g5=) 36...Nc5 (better is 36...ef3 37.Kg1 f2 38.Kg2 Ne1 39.Kh3 Nc2–+) 37.Nd4= Rf6 38.f5 Kg7 39.Raa1 Re5 40.fg6 fg6 41.Rf4 Rf4 42.gf4 Re7 43.Ra3 Kf6 44.Nb3 Nd3 45.Ra2 Kf5 46.Ra1 (46.Kg3 Kf6=) 46...Nb2 47.Nd2 (47.Nd4 Kf6=) 47...Nd3 (47...Kg4 48.Kf2+=) 48.Rg1 Nc5 49.Ra1 Kg4 50.Rg1 (better is 50.Kf2!?=) 50...Kf5 (worse is 50...Kh4 51.Nf3 Kg4 52.Kf2 Kf5 53.Nh4 Kf6 54.Rg6 (54.Ng6? Rg7 55.Nf8 Rg1 56.Kg1 Na4–+) 54...Kf7 55.Rg5=; 50...Na4?! 51.Kf2 Kf5 52.Ke2-/+) ½–½. Kamaletdinov,Farit (1945) – Akopov,Victor (1780), 2012.

9.a4 Bb7 10.d4 ed4 11.ed4 (worse is 11.Qd4 Nd5 12.Qd2 Nb4+=; worse is 11.Nd4 Re8=) 11...Ne4 12.Qc2 Nc3 13.Bc3 Re8 14.a5 Qf6 15.a6 Be4 16.Qb2 Qf4 (16...c5 17.b5=) 17.Bd2 Qf6 18.Rad1 Bf5 (better is 18...d5!?=) 19.Bg5+/– Qe6 20.Rfe1 Bg4? (20...d5 21.Bd3 Be4 22.cd5 Qd5 23.Be4 Re4 24.Re4 Qe4 25.Re1+=) 21.h3 (21.Bd3 Bf3 22.Re6 (worse is 22.gf3 Qe1 23.Re1 Re1 24.Kg2 Rae8=) 22...Bd1 23.Re3+–) 21...Bf3+= 22.Bf3 Qe1 23.Re1 Re1 24.Kh2 Rae8 25.Qd2 c5 26.dc5 bc5 27.Qd6?? Be5–+ 28.Qe5 R1e5 29.b5 Rg5 30.Bc6 Rd8 31.h4 Re5 32.f3 Nb6 33.f4 Re2 34.h5 Nc4 35.Kh3 Ne3 36.b6 ab6 37.a7 Nf5 38.a8Q Ra8 39.Ba8 c4 40.g4 Ne3 41.Kg3 Nd1 42.hg6 hg6 43.Kf3 Re7 44.Bd5 b5 45.f5 gf5 46.g5 c3 47.g6 c2 48.gf7 Kf8 49.Bb3 c1Q 50.Bd1 Qd1 51.Kf4 Kf7 52.Kg5 Qg4 53.Kh6 Re6 54.Kh7 Qg7# (54...Qh5#) 0–1. orangutanb4 (2030) – anthrax (1675), kurnik, 2011.

9.Qc2 Bb7 10.d4 e4 11.Nd2 d5 12.cd5 c5 13.dc5 bc5 14.Nce4 Rc8 15.b5 Bd5 16.Rfd1 Qe7 17.Bf3 c4 18.Nf6 Nf6 19.Bf6 Bf6 20.Bd5 Ba1 21.Ra1 Rfd8 22.Bc4 Qf6 23.Rc1 Kg7 24.Ne4 Qe5 25.f4 Qf5 26.Qc3 Kh6 27.Ng3 Qc5 28.Kf2 Rc7 29.Qf6 Re8 30.Qd4 Qd4 31.ed4 Rec8 32.f5 Rc4 33.Rc4 Rc4 34.fg6 hg6 35.Ke3 Rb4 0–1. emeryt85 – 7895, kurnik, 2012.

9.d4 Bb7 10.de5 de5 11.Qc2 Qe7 12.a4 Rfd8 13.a5 a6 14.Ba3 e4 15.Nd4 Qe5 16.ab6 cb6 17.b5 ab5 18.Ndb5 Nc5 19.Bc5 bc5 20.Ra8 Ra8 21.Rd1 h5 22.h3 g5 23.g3 h4 24.g4 Bc6 25.Nd5 Nd5 26.cd5 Bb5 27.Bb5 Bf8 28.Bf1 Bd6 29.Bg2 Qh2 30.Kf1 Re8 31.Qa4 Qe5 32.Rb1 Re7 33.Qc6 Ra7 34.Qc8 Kg7 35.Qf5 Qf5 36.gf5 Ra4 37.Rb6 Ra1 38.Ke2 Ra2 39.Kd1 Ra1 40.Kc2 Ra2 41.Kb3 Rf2 42.Be4 Be5 43.Kc4 Kf8? 44.d6+– Rd2 45.Kc5 Bb2 46.Rb8 Kg7 47.Rb2! Rb2 48.d7 Rb8 49.Kd6 (49...Kf6 50.Kc7+–) 1–0. Llanos,Guillermo (2370) – Schweber,Samuel (2355), Boca Juniors op, 1998.

8.Nc3 c6

9.a3 Qc7 10.d4+= e4 (10...Re8 11.Qc2+=) 11.Nd2 d5 12.Qb3 (12.Rc1 Qd6+=) 12...Qd6 13.cd5 Nb6? (better is 13...cd5 14.Rac1 a6+=) 14.dc6+– bc6 (14...Be6 A) 15.Nce4 Ne4 16.Ne4 Qc6=+ (16...Bb3? 17.Nd6 bc6 18.Rac1+–); B) 15.Nde4?! Ne4 (15...Bb3? 16.Nd6 bc6 17.Rfc1+–) 16.Ne4 Qc6=+ (16...Bb3? 17.Nd6 bc6 18.Rac1+–); C) 15.Qc2 Qc6 16.Nde4 Ne4 17.Qe4+–) 15.Nde4 Ne4 16.Ne4 Qd5 17.Qd5 cd5 18.Nc5 h5 (18...Be6 19.Rfc1+–) 19.h3 (19.Rac1 Bf5+–) 19...Nd7 (19...Be6 20.Rac1+–) 20.Rac1 Nf6 21.a4 (21.Bd3 Re8+–) 21...Nd7 (21...Bf5 22.Rc3+–) 22.Ba3 (22.Rc2 Nc5 23.dc5 Bf5+–) 22...Re8 23.Bf3 Nf6 24.Be2?? Bf8?? 25.Rb1 Bf5 26.Bd3 Bd3 27.Nd3+– Ne4 28.Rb2 a5 29.Nc5 Nd6 30.Ra2 Nc4 31.b5 f5 32.Bc1 Kf7 33.Nd3 Bd6 34.Ne1 Kf6 35.Nc2 Bb4 36.Ba3+– Bc3 37.Rd1 Rac8 38.Rd3 Na3 39.Ra3?? Bb2= 40.Ne1 Ba3 41.Ra3 Rc4 42.Nd3+/– g5 43.Nc5 Ke7 44.Kf1 f4 45.Ke2 Kf6 46.Nd7 Kf5 47.Ne5 Rc2 48.Kd3?? Rf2–+ (49.g3 fg3–+) 0–1. Vaast,Jean_Philippe (1640) – Vebret,Samuel, Sainte Marie FRA, Open, 2005.

9.a3 d5 10.cd5 cd5 11.Nb5 Ne8 12.Qb3 a6 13.Nc3 d4 (13...Nb6 14.Rac1=) 14.Ne4 Nb6 15.Nc5 Nc7 16.Rfc1 (16.ed4 ed4 17.Rfe1 Be6+=) 16...Ne6 17.a4 Nd5 18.Bc4 Nc5 19.bc5 Be6 20.Rab1 (20.ed4 e4 21.Ne5 Nf4+/–) 20...Rb8+= 21.ed4 e4 22.Ne5 b5 23.ab5 ab5 24.Bf1 (24.Bb5 Nc7 25.Qg3 Rb5–+ (25...Nb5 26.Nc6 Qe8 27.Nb8 Qb8 28.Qb8 Rb8 29.d5 Bd5 30.Bg7 Kg7 31.c6+/–)) 24...Qc7 25.f3 White prepares the advance c6 (worse is 25.Bb5 Be5 26.de5 Qa5+=) 25...f6? (better is 25...ef3 26.Qf3 Rfd8+=) 26.fe4+– Nf4 27.d5 White plans c6 27...fe5 28.de6 Qe7 (28...Rfe8 29.e7 Kh8 30.g3+–) 29.c6 Qe6 30.Ba3 Qb3 31.Rb3 Rfc8 32.Bb5 (better is 32.c7 Rb7 33.Bd6+–) 32...Ne2?? (better is 32...Rb5 33.Rb5 Ne2 34.Kf2 Nc1 35.Bc1 Rc6+–) 33.Be2 Rb3 34.Bc4 (34.Bc4 Kh8 35.Bb3+–) 1–0. Basman,Michael – Broome,T, St George, 1979.

9.a3 e4 10.Nd4 c5 11.Nb3 Qe7 12.f3 ef3=.

9.Qb3 a5 10.a3 Re8 11.d4 ed4 12.Nd4 Qe7=.

9.Qb3 e4 10.Nd4=.

9.Qb3 e4 10.Ne1 a5 11.d3 ab4 12.Qb4 Qb6=.

9.Qb3 Qe7 10.d4+= e4 11.Nd2 d5 12.f3+=.

9.Qb3 Qe7 10.d4+= e4 11.Nd2 Bh6 12.a4 Re8 13.Ba3 (13.Rfd1 Bg7+=) 13...Nf8 (13...Bg7 14.Bb2+=) 14.b5 Bf5 15.c5 d5 16.Qc2 (16.bc6 bc6 17.Rfb1 Ne6+=) 16...Ne6 (16...Bg4 17.Bg4 Ng4 18.bc6=) 17.Nb3 (17.bc6 bc6 18.Qd1 Rab8=) 17...Ng5 (17...Bg4 18.Bg4 Ng4 19.Bb2=) 18.Rfe1 (18.bc6 bc6 19.Rfb1 Rab8+=) 18...Ng4 (18...Bg4 19.Bg4 Ng4 20.bc6 bc6 21.h3=) 19.Nd2 (better is 19.bc6 bc6 20.Reb1+=) 19...Nf3 20.gf3 (20.Nf3 ef3) 20...ef3 21.Qf5?? (21.Bd3 Qh4 22.Nf1=) 21...gf5–+ 22.Bf3 Qh4 23.Bg4 fg4 (23...Qg4 24.Kh1 f4 25.Rg1+/–) 24.Re2 (24.bc6 bc6 25.Rab1 Rab8–+) 24...Re6 (24...Bg7 25.a5–+) 25.Nf1 (25.bc6 bc6 26.Rb1 Bg7–+) 25...Rae8 26.Raa2 Bg5 (27.bc6 bc6–+; 26...Bg7 27.a5–+) 0–1. Kern,Guido (2300) – Emmerich, Hessen clubgame, 1995.

9.Qb3 Re8= 10.d3 Nf8 (10...a5 11.a3 Qc7 12.d4 ed4=) 11.h3 (11.Rfd1 a5 12.b5 Ne6+=) 11...Bf5 (11...Ne6 12.Rfd1 a5=) 12.Ng5 (12.Rfd1 a5=) 12...Qc7 (12...Qe7=) 13.Nge4 Rad8 14.Rac1 (14.Nf6 Bf6 15.Qa4 a6=) 14...Qb8 (14...Ne4 15.de4 Be6 16.Rfd1=) 15.c5 Ne4 16.Ne4 dc5 17.bc5 Be4 18.de4 Ne6 19.Rc2 Qc7 20.Rb1 Bf8 21.Ba3 Rd7 22.Qa4 a6 (22...Qb8 23.Bg4=) 23.Bb4 Qd8 24.Ba3 ½–½. Benko,Pal – Kraidman,Yair, Netanya, 1969.

9.Qb3 Re8= 10.d4 a5 11.a3 ed4 12.Nd4 Qe7=.

9.Qb3 Nh5 10.d4+= f5 (10...ed4 11.Nd4 Qh4 12.Nf3+=) 11.c5+– d5 12.Ne5 Ne5 13.de5 Be5 (13...Qh4!?+–) 14.Bh5 (14.Nd5 Bh2 15.Kh2 cd5 16.Bh5 gh5+–) 14...gh5 15.Nd5 Be6 16.Be5 Bd5 17.Qc3 Qg5 18.f3 Rae8 (18...h4 19.Rad1+–) 19.Bf4 (19.Rad1 h4+–) 19...Qg6 (19...Qg7 20.Qg7 Kg7 21.Rfd1+–) 20.a4 (20.Rad1 h4+–) 20...h4 21.h3 Rf7 22.Kh1 Rg7 23.Rf2 h6 24.b5 Kh7 (24...Rd7 25.Qa5+–) 25.Rd1 Reg8 (25...Rd7 26.Rfd2+–) 26.bc6 (26.Qa5 Ra8+–) 26...bc6 27.Rb1 (27.Rfd2 Rd7+–) 27...Qh5 (27...Qe6 28.Rfb2+–) 28.Qf6 (better 28.Be5 Rd7 29.Rfb2+–) 28...Rg2?? (better 28...Rf7 29.Qe5 Qg6+–) 29.Rg2 Bf3 30.Rb7 (30.Rb7 Rg7 31.Qg7) 1–0. Wall,Bill – Palmtree, internet, 1996.

9.d3 Re8 10.Re1 Nf8 11.a4 a5 12.b5 d5 13.cd5 cd5 14.Rc1 h6 15.b6 (15.Nb1!? Qd6 16.Ba3+=) 15...Bd7 16.Qb3 Bc6 (16...Re6 17.Nd5 Nd5 18.Qd5 Ba4 A) worse 19.Qb7 Rb6 (19...Qb6? 20.Qa8 Qb2 21.Qa5+–) 20.Qe4 Rb4-/+; B) 19.Qd8 Rd8 20.Ra1=) 17.Nb5 Qb6 (17...Bb5 18.Qb5 N8d7 19.Rc7+–) 18.Ne5 Bb5 19.d4 (worse 19.Qb5 Qb5 20.ab5 N6d7 21.Nd7 Bb2= (worse 21...Nd7 22.Bg7 Kg7 23.Rc7+–)) 19...Rec8 20.Bb5 Qe6 21.Nd3 Ne4 (21...Qf5!?+–) 22.Nf4+– Qf6 (22...Qe7 23.Ba3 Qh4 24.g3+–) 23.Qd5 Rc1 (23...Qe7 24.Bd3 Re8 25.Re2+–) 24.Rc1 Nf2 (24...Nd6+–) 25.Qb7 (25.Kf2?! g5 26.Qb7 Rd8+–) 25...Rd8 26.h3 (26.Kf2?! g5 27.g3 gf4 28.gf4 Ne6+–) 1–0. Panza (2520) – Sinuhe (2370), ChessWorld.net, 2010.

9.d4 Qb6 10.a3 Re8+=.

9.d4 c5+=.

9.d4 ed4 10.Qd4 Nd5 11.Qd2 Nb4 12.Rad1 Nc5+=.

9.d4 e4 10.Nd2 Re8+=.

9.d4 Qe7 10.a3 Re8 11.Qc2 ed4 12.Nd4 Nb6=.

9.d4 Re8+= 10.a3 Qe7 11.Qc2 ed4 12.ed4 Nb6=.

9.d4 Re8 10.Qb3 e4 11.Nd2 Nf8 12.b5 h5 (12...Bf5 13.a4+=) 13.Rac1 Bf5 14.a4 Ng4 15.h3 Qh4? (better 15...Nf6+=) 16.hg4+– hg4 17.g3 Qh3 (17...Qe7 18.a5+–) 18.Rfe1 (18.Qc2 Nd7+–) 18...Nh7 (18...Nd7 19.Bf1 Qh5 20.Ba3+–) 19.Bf1 (19.Ba3!? Rad8+–) 19...Ng5?? (19...Qh6+–) 20.Bh3 (20.Bh3 gh3 21.Ba3+–) 1–0. UncleBulgaria – whitecat25, ChessWorld.net, 2014.

8.Nc3 e4

9.Nd4 c5 10.bc5 dc5 11.Nb3 Qe7 12.d3 ed3 13.Qd3 Ne5 14.Qd2 Bg4 15.Bg4 Nfg4 16.Nd5 Qh4 17.h3 Nc4 18.Qe2 Nb2 (18...Bb2?! 19.Qc4 Ba1 20.Na1=) 19.Rab1 (19.hg4 c4 20.Na5 Rfc8–+) 19...c4 (better is 19...Rfd8!? 20.Nf4 c4 21.Nd4–+) 20.Nd4 Nd3 21.Nf3?? (better is 21.hg4 Qd8 22.Qf3–+) 21...Qd8 22.Nc3 (22.Nb4 Ngf2 23.Rf2 Nf2 24.Qf2 Re8–+) 22...Bc3 23.Rb7 Nge5 24.Ne5 Be5 25.Rd1 Qd5 26.Re7 Bd6 27.Rd7 Bh2! 28.Kh2 Qd7 29.Qc2 Rac8 30.Kg1 Qf5 31.g4 Qf2! 32.Qf2 Nf2 33.Kf2 c3 34.Rc1 Rfd8 35.Ke2 Rd2 Black plans c2 36.Ke1 Ra2 37.e4 Rh2 38.Kd1 c2 39.Ke1 Rc3 40.e5 Rg3 (40...Rg3 41.Kf1 Rb3 42.Kg1 Rd2 43.e6 Rb1 44.ef7 Kf7 45.Rf1 Rf1 46.Kf1 c1Q#; 40...Rb3 41.Kf1 Rb1 42.Kg1 Rd2 43.Rf1 Rf1 44.Kf1 c1Q#) 0–1. Neumann,Frank – Suarez,Richard, OP–2012–0-01999, 2012.

9.Nd4 Ne5 10.d3 ed3 11.Bd3 c5 12.Nc2 Be6 13.Qe2 Nfg4 14.f4 Nd3 15.Qd3 cb4 16.Nb4 (16.Nd1!? Qh4 17.h3-/+) 16...Qb6–+ 17.Ncd5 Bd5 18.Bg7 Bc4 19.Qc3 Rfc8 (19...Bf1?! 20.Nd5 Qd8 21.Bf8 Qf8 22.Rf1=) 20.Bd4 0–1. ramoschessbrasil – rgpchesspeii (1980), net–chess.com, 2011.

9.Nd4 Re8 10.d3 ed3 11.Bd3 Ne5 (11...a5 12.a3=) 12.Be2 h5 (12...Bg4 13.f3 Bd7 14.e4=) 13.Rc1 (13.h3 Nc6 14.Nc6 bc6+=) 13...h4 14.h3 a5 15.a3 ab4 16.ab4 c6 (16...Nc6 17.Nc6 bc6 18.Bf3+=) 17.Nf3 (17.Ra1!? Ra1 18.Qa1+=) 17...Nf3=+ 18.Bf3 Qe7 (18...Nd7 19.Be2= (worse 19.Qd6 Ne5 20.Qd8 Nf3 21.gf3 Rd8-/+)) 19.Qd2 (19.b5 Bd7=) 19...Nd7=+ 20.Rfd1 Ne5 21.Be2 Be6 22.Ne4 d5 23.Nc5? (23.Be5 Be5 24.Nc5 dc4 25.Bc4 Bc4 26.Rc4 Red8=+) 23...dc4?? (better 23...Ra2 24.cd5 Rb2 (24...Bd5?! 25.Rc2=+) 25.Qb2 Nf3 26.Bf3 Bb2-/+) 24.Ne6= Qe6 25.Be5 Be5 26.Bc4 Qe7 27.Qd7 Rad8 28.Qe7 Rd1 (28...Re7?? 29.Rd8 Kg7 30.Rcd1+-) 29.Rd1 Re7 30.b5 cb5 31.Bb5 Rc7 32.f4 Bf6 33.Kf2 Rc5 34.Bd3 b5 35.Rb1 Rc3 36.Bb5 Be7 37.Bf1 Bc5 Exerts pressure on the backward pawn 38.Re1 Kg7 39.Kf3 f5 40.g3 hg3 41.Kg3 (41.h4 Kh6=) 41...Be3=+ 42.Rb1 Bc1 43.Kg2 Bf4 44.Rb4 Be5 45.Be2? (better 45.Rb5!? Kf6 46.Rb6 Kg5 47.Re6 Rc2 48.Kf3=+) 45...Rg3-+ 46.Kf2 Rh3 47.Rb5 (47.Bf3 Rh8-+) 47...Bf6 (47...Kf6 48.Bf3-+) 48.Rb6 (48.Bf3!?-+) 48...Bd4 49.Kg2 Bb6 50.Kh3 Kf6 51.Bd1 Bc7 52.Kg2 Kg5 53.Kf3 Kh4 54.Be2 g5 Black prepares the advance f4 55.Bf1 g4 56.Kg2 f4 57.Be2 Kg5 58.Bd1 Kf5 (58...Be5 59.Kf2-+) 59.Be2 (59.Bc2 Ke5 60.Bd1 g3-/+) 59...Bb6-+ 60.Bd1 Ba7 61.Be2 Bb8 62.Bd1 Kg5 63.Be2 Kh4 64.Bd1 Bc7 65.Be2 Bd6 66.Bd1 g3 (66...Bc5 67.Be2-+) 67.Be2 Kg5 68.Bf3 Kf5 69.Be2 Ke5 70.Bf3 Kd4 71.Bg4 Ke3 72.Bf3 Kd2 73.Bg4 Ke1 74.Bf3 Be5 75.Bg4 Kd2 76.Bf3 Kd3 77.Bg4 Ke3 78.Bf3 Kd4 79.Bg4 Kd5 80.Bf3 Ke6 81.Bg4 Kf6 82.Bf3 Kf5 83.Be2 Ke4 84.Bf3 Ke3 85.Bg4 Bd4 86.Bf3 Bc5 87.Bg4 Bb6 88.Bf3 Ba7 89.Bg4 Bb8 90.Bf3 Kd4 91.Bg4 Ke5 92.Bf3 Kf5 93.Bd1 f3 94.Bf3 (94.Bf3 Kg5 Combination; 94.Kf3 Bf4 Combination) 94...Kf4 95.Bd1 Bc7 96.Bf3 Bb6 97.Bd1 Bc7 98.Bf3 Bb6 99.Bd1 Bc7 ½-½. Lance5500 (2400) - Valera_B5 (2645), lichess.org, 2019.

9.Nd4 Re8 10.f3+= a5 (10...c5 11.Nc2+=) 11.b5 Nc5 (11...ef3 12.Bf3 Ne5 13.Qe2+=) 12.Qc2 Bd7 13.Rae1 (13.fe4 Nce4 14.Bf3 Qe7+=) 13...Qe7 (13...a4 14.fe4 Nfe4 15.Bf3+=) 14.fe4 Nce4 15.Ne4 Ne4 16.Bf3 Rab8 17.d3 Ng5 18.Bd5 Ne6 (18...c6!? 19.bc6 bc6 20.Nc6 Nh3 21.Kh1 Bc6 22.Bg7 Bd5+=) 19.Bc3 b6 (19...Nd4 20.ed4 (20.Bd4?! Bd4 21.ed4 Qe1 22.Bf7 Kg7 23.Re1 Re1 24.Kf2 Rh1=) 20...Be6 21.Bb7 Rb7 22.d5+/–) 20.Nc6 Bc6 21.Bg7?? (21.Bc6 Rf8+/–) 21...Kg7?? (21...Bd5 22.Bf6 Qd7 23.cd5 Nc5+/–) 22.Qc3 f6 23.Bc6 Rf8 24.e4 Rf7 25.d4 Rbf8 26.Bd5 Rd8 27.a3 Rff8 28.Qd3 Rc8 29.Re3 Rcd8 30.Rg3 Rc8 31.Rf2 Rcd8 32.Re3 Rc8 33.Qc3 Rcd8 34.Qd2 Rfe8 35.Ref3 Rf8 36.Rf1 Rc8 37.Re3 Rcd8 38.Rg3 Rc8 39.Rh3 Ng5 40.Re3 Ne6 41.Qc3 Rcd8 42.Ref3 ½–½. pcmvr (2715) – quetzalkoatl (2665), net–chess.com, 2006.

9.Ne1 Ne5 10.f3 Be6 11.Ne4 Ne4 12.fe4 Bc4 13.Bc4 Nc4 14.Bg7 Kg7 15.Qc1 Ne5 16.Nf3 ½–½. Benko – Reshevsky, Palma de Mallorca 1971.

9.Ng5 Re8 10.Qc2 Qe7 11.f4 ef3 12.Nf3 Ne5 13.Ne5 de5 14.Rf2 e4 (better is 14...Qb4!? 15.Raf1 Bf5+=) 15.Raf1+= Ng4?? (better is 15...Bf5+=) 16.Bg4 Bg4 17.Nd5 (17.Rf7?! Qf7 18.Rf7 Kf7+/–) 17...Qg5 18.Bg7 Bf3 (18...Kg7 19.Rf7 Kh6+–) 19.Bf6 Qg4 20.Nc7 Rac8 21.Ne8 (21.Rf3?! ef3 22.Rf3 Rc7+/–) 21...Re8 22.Qc3 Re6 (22...a5 23.Bh8 Kf8 24.Qg7 Ke7 25.Qf6 Kd7 26.Qd4 Kc8 27.Rf3+–) 23.Bh8 Kf8 24.Bg7 (24.Kh1 Ke8 25.gf3 ef3+–) 24...Kg8 25.Bh6 f6 26.Qd4 Kf7 27.Qd7 Re7 28.Qd5 Re6 29.Rf3 ef3 30.Rf3 Qh4 31.Bg5 Qe1 32.Rf1 Qe2 33.Rf6 Kg7 34.Qd7 1–0. elsh1403 – nafrak (1830), kurnik, 2011.

8.Nc3 Re8

9.a4 Nf8 10.a5 a6 11.Qb3 h5 12.Nd5 N8h7 13.Rfc1 Bg4 14.Qd1 e4 15.Nf6 Bf6 16.Bf6 Qf6 17.Ne1 Be2 18.Qe2 Ng5 19.d4 ed3 20.Nd3 h4 21.h3 Qf5 22.Ne1 Re7 ½–½. Krotki – Ligterink, Stockholm 1969.

9.Qb3 e4 10.Ne1 (10.Nd4 a5 11.b5 a4=) 10...Ne5 (10...a5 11.a3=+) 11.f3 ef3 12.Nf3 Nfg4 13.Rae1 Nf3 14.Bf3 (worse 14.gf3 Nh2 15.Rf2 Qh4-/+; 14.Rf3?? Qh4 15.h3 Qe1 16.Rf1 Qd2 17.hg4 Bc3 18.Bc3 Qe2–+) 14...Ne5 15.Be2 c6 16.d4 (16.Rf4!?=) 16...Ng4=+ 17.Nd1 d5 (17...Qh4 18.Bg4 Bg4 19.Nf2=+) 18.cd5 cd5 (worse 18...Qd5 19.Bc4 Qd6 20.Bf7 Kh8 21.g3+–) 19.Bf3 Nf6 20.Nf2 Bf5 21.Nd3 Ne4 22.Rd1 Ng5 (22...a5 23.Nf4 Qd7=) 23.Qd5 (better 23.Bd5!? Re3 24.Rf5 gf5 25.Bc1 (worse 25.Bb7 Bd4 26.Kf1 Rb8-/+) 25...Bd4 26.Be3 Be3 27.Kh1=) 23...Re3-/+ 24.Qd8 Rd8 25.Ne1 Nf3 26.Rf3 (26.Nf3 Bf8 27.a3 Rb3-/+) 26...Re2 (26...Re4 27.Ra3 a6 28.Nf3–+) 27.Rf2-/+ Re4 28.Nf3 Bg4 (28...Bh6 29.Bc1 Bf8 30.a3-/+) 29.Kf1 (29.h3 Bd7-/+) 29...Be6 30.Ng5 Bc4 31.Kg1 ½–½. Kaczur,Florian (2420) – Dobrovoljc,Vid (2245), European YOUTH TEAM Chess Championship, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nbd7 8.Nc3 Re8)

9.Qb3 Nf8 10.a4 a5 11.b5 Ne6 12.d4 e4 13.Nd2 Ng5 14.Nd5 Bf5 15.Rac1 h5 16.Nf6 Bf6 17.d5 Nh7 18.c5 Bg4 19.Bg4 hg4 20.Rc4 dc5 21.Rc5 Be5 22.Be5 Re5 23.Rfc1 c6 24.bc6 bc6 25.Rc6 Rd5 26.Ne4 Kg7 27.Rc7 Rb8 28.Qc3 Kh6 29.h3 gh3 30.Rf7 Qg8 31.Qc7 Ng5 32.Ng5 Rg5 33.g3 Rf8 34.Rf8 Qf8 35.Qf4 Qf4 36.ef4 Re5?? 37.Rc4 g5?? 38.fg5 Rg5 39.Rh4 Kg6 40.Rh3 Kf5 41.Rh4 Ke6 42.Kg2 Kd6 43.Re4 Kc5 44.f4 Rg8 45.f5 Kd5 46.Kf3 Rb8 47.f6 Rb3 48.Kf4 Rb1 49.Re5 Kd6 50.Ra5 Ke6 51.Kg5 Rg1 52.g4 Rf1 53.Ra6 Kf7 54.Ra7 Kg8 55.Kg6 Rf6 56.Kf6 Kh8 57.Kg6 Kg8 58.Ra8# 1–0. Bennett,Hilton Petrie – Tian,Kuan Kuan, Australian op, 1999.

9.Qb3 Nf8 10.d3 h5 11.Nd5 N8h7 12.Rfd1 Bg4 13.h3 Be6 14.e4 Nd7 15.Qc2 f5 16.Nc3 f4 17.d4 g5 18.d5 Bf7 19.Nh2 Bf8 20.g4 ½–½. Benkoe – Byrne, USA 1970.

9.Qb3 Nf8 10.d4 e4 11.Nd2 h5 12.d5 N8h7 13.Rfe1 Bf5 14.Nb5 Ng4 15.h3 Ne5 16.Nd4 Qh4 17.Nf5 gf5 18.f4 ef3 19.Be5?? f2–+ (20.Kf1 fe1R (20...de5?! 21.Red1-/+; 20...Re5?! 21.Red1 Qg3 22.Nf3-/+; 20...Be5?! 21.Red1–+; 20...fe1N?! 21.Bg7 Ng2 22.Kg2 Kg7 23.Nf3–+) 21.Re1 de5–+ (21...Re5?! 22.Nf3 Qg3 23.Ne5 Be5 24.Bh5–+)) 0–1. Mielke,Sven – Hitzgerova,Gabriela (2170), Crailsheim op, 2000.

9.Qb3 Nf8 10.d4 e4 11.Nd2 h5 12.Rfe1 Bh6 13.a4 N8h7 14.a5 Bg4 (14...Ng5 15.a6+/–) 15.Bf1 (15.Bg4 hg4 16.a6 b6+/–) 15...Ng5 16.d5 Qc8 17.Nb5 Nfh7? (17...Bg7 18.Bd4+/–) 18.c5 (18.h4 Nf3 19.gf3 Bf3=) 18...a6+/– 19.Qc3 The mate threat is Qh8 19...f6 20.Nd4 dc5 21.bc5 h4 22.Rac1 Re5 23.Qb3 Kh8 24.Nc4 Nh3?? 25.gh3 Rg5 Threatening mate... how? 26.Kh1 Bg7 27.Nd2 Bf5 28.Ne6 Qd7 29.Qb7 (29.Qb7 Qc8 30.Qc8 Rc8 31.Ba6 Be6 32.de6+–) 1–0. Sher,M (2520) – Henderson, Colorado USA, 1974.

9.Qc2 a5 10.a3=.

9.Qc2 c6 10.b5 Nc5 11.bc6 bc6 12.d3 Rb8 13.Nd2 d5 14.Nb3 Nb3 15.ab3 d4 16.ed4 ed4 17.Na4 Nd7 18.Ba3 Qc7 19.Nc5 Qe5 20.Nd7 Bd7 21.Bf3 a5 22.Bc1 Bf8 23.g3 Qf6 24.Be4 Bb4 25.Bd2 Bh3 26.Bf4 Bf1 27.Rf1 Rbc8 28.c5 Qe6 29.Kg2 Kg7 30.h4 f6 31.Rc1 Bc3 32.Qe2 Re7 33.Bd2 Bd2 34.Qd2 Qb3 35.Qa5 f5 36.Bc6 Rc6 37.Qd8 Qe6 38.Qd4 Qe5 39.Qe5 Re5 40.d4 Rd5 41.Rc4 Kf7 42.Kf3 Rc7 43.Ke3 Rd8 44.Kd3 Ke6 45.Rc2 Rcd7 0–1. Steinbacher – Himmel, 1995.

9.Qc2 Nf8 10.Rfd1 (10.e4 Ne6+=) 10...h5 (better is 10...e4!? 11.Nd4 N8d7=) 11.d4+/– e4 (11...Bf5 12.e4 ed4 13.ef5 dc3 14.Bc3+=) 12.Nd2 Bf5 13.Qb3 (13.a3 N8d7+/–) 13...N8h7 (13...Ne6 14.Qc2+=) 14.Nf1 (14.a4 Ng5+/–) 14...h4 (14...Ng5 15.Ng3 Be6 16.Qc2+=) 15.b5 (15.a4 Ng5+=) 15...Ng5 16.a4 Ng4 (16...h3 17.Ng3+=) 17.Nd5 (17.a5 Qf6+=) 17...Bh6 (17...h3 18.Ng3+=) 18.Nf4 (18.a5 c6 19.Nf4 cb5 20.Qb5 Qc7+/–) ½–½. Berlacki,Piotr – Lemanczyk,Thomas, The Hague op, 1993.

9.d3 a5 10.a3=.

9.d3 c6 10.e4 (10.d4 Qb6 11.a3 c5=) 10...Nf8 (10...Qb6 11.a3=) 11.a4 (11.Bc1 Qb6 12.a3 Ne6+=) 11...Ne6 (11...Qb6 12.Qb3=) 12.a5 Nf4 13.Bc1 d5 (13...Ne2 14.Qe2 Bg4 15.Qe3=) 14.Bf4 (14.ed5 Qd6 15.c5 Qd8 16.dc6 bc6 17.Bf4 ef4+/–) 14...ef4 15.e5 Ng4 16.d4 dc4 17.Bc4 (17.h3 Nh6 18.Bc4 Be6 19.Be6 fe6+/–) 17...Bf5 18.Qd2 g5 19.Rad1 Bf8 20.h3 Nh6 21.Ne2 (21.a6 b5 22.Nb5 cb5 23.Bb5=+) 21...Be4= 22.Nh2 Qd7 23.Rfe1 Rad8 24.Nf4!+/– gf4? 25.Re4+– Qf5 26.f3 Qg5 27.Ng4 Bg7 28.Qf4 Qf4 29.Rf4 Ng4 30.hg4 Re7 31.Rf5 Be5 32.Bf7 Kg7 33.Bh5?? Bd4 34.Kf1+= Red7 35.Rf4 Bc3 36.Rd7 Rd7 37.Rc4 Bf6 38.a6 Be5 39.ab7 Rb7 40.Rc6 Rb4= 41.Re6 Bd4 42.Re7 Kh6 43.Be8 a5 44.f4+– Bf6 45.g5 Bg5 46.fg5 Kg5 47.Rh7 Rb1 48.Kf2 Rb2 49.Kg3 Rb3 50.Kh2 Rb8 51.Rh5 Kg4 52.Re5 Ra8 53.g3 (53...Re8 54.Re8+–) 1–0. Iosif,Daniela – Kalies,Grit, GER–ch op (Women), 1994.

9.d3 e4 10.Ne4 Ne4 11.Bg7 Nf2 12.Rf2 Kg7 13.Qd2 a5 14.b5 Nc5 15.e4 Qe7 16.Raf1 Rf8 17.Bd1 Bd7 18.Bc2 f6 19.Nd4 Be6 ½–½. Benassi,Aspasio (2290) – Kirkov,Toshko Dimitrov (2295), VWC5/pr17 ICCF, 2012.

9.d3 Nf8 10.Qc2 c6 11.Rfd1 d5 (11...Qe7 12.a3+=) 12.d4 Bf5 Black intends e4 (12...e4 13.Ne5+=) 13.Qb3 White prepares b5 13...e4 14.Ne5 Be6 15.b5 dc4 16.Bc4 cb5 17.Qb5 (17.Nb5 Nd5+=) 17...a6 18.Qb3 b5 (18...N8d7 19.d5 (worse is 19.Qb7 Rb8 20.Qa6 Rb2-/+) 19...Bf5 20.Nc6 bc6 21.dc6+=) 19.Be6 Ne6 20.a4 1–0. pcmvr (2745) – emanuelle (2445), net–chess.com, 2006.

9.d4 c6 10.de5 de5 11.Qc2 Qe7 12.a3 a5 (12...c5 13.Nb5 e4 14.Nd2+=) 13.c5+= Nf8 14.Rfd1 Bf5 15.e4 Bg4 16.Rd2 ab4 17.ab4 Ra1 18.Ba1 Bf3 19.Bf3 (worse 19.gf3 Ra8 20.Bb2 Nh5=+) 19...Ne6 20.Rd6 (20.Na2!?+=) 20...Nd4=+ 21.Qd3 Ra8 22.Bb2 Ne8 23.Nd5? (better 23.Rd4 ed4 24.Nd1–+) 23...cd5–+ 24.Rd5 Ra2 25.Bc3 (25.Bd4 ed4 26.g3 Be5–+) 25...Ra3 (better 25...Nc7 26.Rd6 Ra3–+) 26.h3 (26.Qd2–+) 26...Nc7 (26...Nf3?! 27.Qf3 Nc7 28.Rd3–+) 27.Qc4 (27.Bg4 Ncb5 (worse 27...Nd5 28.ed5 h5 29.d6–+) 28.Rd4 ed4 (28...Nc3?! 29.Rd8 Bf8 30.Qd6-/+; 28...Rc3?! 29.Rd7 Rd3 30.Re7=+) 29.Qb5 dc3–+) 27...Nd5 (27...Nf3 28.Kh1 Nd5 29.ed5–+) 28.ed5 (28.Bd4 ed4 29.Qd5–+) 28...Nf3 29.gf3 Qg5 30.Kh2 Qf4 (better 30...Qc1 31.Qh4 Qc3–+) 31.Qf4 ef4 32.Bg7 Kg7 33.d6 Kf6 0–1. poesimannen (2060) – zhengqjf (2175), FICS rated standard game, 2013.

9.d4 ed4 10.Nd4 c5 11.Nc2=.

9.d4 ed4 10.Nd4 Nf8 11.a4 (11.Nd5 Nd5 12.cd5 Qg5+=) 11...c5 12.bc5 (12.Nc2 cb4 13.Nb4 Be6+=) 12...dc5= 13.Nb3 Qd1 (13...Ne4 14.Qc1 Qf6 15.Nd1=) 14.Rfd1 b6 (14...Ne4 15.Ne4 Bb2 16.Rab1 (16.Nec5?! Ba1 17.Na1 Ne6=) 16...Re4 17.Bd3+=) 15.a5 Bf5 (15...Bg4 16.Bg4 Ng4 17.Na4+=) 16.Rd2 (16.Nd5 N8d7 17.Nc7 Nd5 18.Rd5 Bb2+–) 16...Rad8 17.Nb5 (17.Rd8!? Rd8 18.ab6 ab6 19.Ra6=) 17...Rd2= 18.Nd2 Rd8 (18...a6 19.Nd6 Rd8 A) 20.Nf5 Rd2 21.Ng7 A1) 21...Kg7?! 22.Bf6 (22.ab6? Rb2 23.b7 Rb7–+) 22...Kf6 23.Bf3=; A2) 21...Rb2–+; B) 20.Be5=) 19.Bc3 (19.Nf3 a6 20.Nc7 ba5 21.Na6 Ne6+=) 19...ba5 (better is 19...a6!? 20.Nc7 Nh5 21.Bg7 Rd2 22.Bf8 Re2+=) 20.Ra5+/– Ne4 (20...Rd7 21.Na7 Ne6 22.Nb5+/–) 21.Ne4 Be4 22.Ra7 Bd3 23.Kf1 Be2 24.Ke2+– Bc3 25.Nc3 Rd7 26.Rd7 Nd7 27.f4 Kf8 28.g4 Ke7 29.Kd3 f5 30.g5 Ke6 31.Na4 Kd6+/– 32.e4 fe4 33.Ke4 Ke6 34.h4 Kd6 35.f5 Ne5 36.Nb6 gf5 37.Kf5 Ng6 38.h5 Nh4 39.Kf6 Nf3 40.g6 hg6 41.h6 (41...g5 42.h7+–; 41.Kg6 Kc6 42.Nd5 Ne5 43.Kf6 Nc4+–) 1–0. Bulcourf,Carlos (2260) – Fischer,Luis, Najdorf op Buenos Aires, 2002.

9.Ne1 Nf8 10.f4 ef4 11.Rf4 Ne6 12.Rf1 Ng5 13.Qc2 Bf5 14.Bd3 Bd3 15.Nd3 d5 16.cd5 Nd5 17.Nd5 Qd5 18.Bg7 Kg7 19.Qc3 Kg8 20.Nf4 Qd6 21.Qc4 (21.Rad1 Rad8 22.Qc4 c6=) 21...Rad8 (worse is 21...Qd2 22.Nd5 Re5 23.Nf6 Kg7 24.Rf2+=) 22.Nh3 (better is 22.Rad1!?=) 22...Nh3 23.gh3 Rd7 (23...Qd2?! 24.Qf7 Kh8 25.Qf6 Kg8 26.Qf7 Kh8 27.Qf6 Kg8 28.Qf7=) 24.Rf2 Re5 25.h4 Qe6 26.Qe6 Re6 27.Rc1 Re4 28.a3 Rh4 29.Rc3 Rh5 30.d4 a5 31.ba5 Ra5 32.Rb2 c6 33.Rcb3 Ra7 34.Kf2 Kf8 35.Kf3 Ke7 36.Ke4 f6 37.Rb1 Kd8 38.R1b2 Kc8 39.Rf2 Rd6 40.Rfb2 Rd5 41.Rf2 f5 42.Kf4 Rda5 43.Ra2 Kd7 44.Rb6 Ke6 45.Kg5 Kd5 46.Kf4 h6 47.h4 Ke6 48.Rab2 Kf6 49.Rb7 Rb7 50.Rb7 Ra3 51.Rb6 g5 52.hg5 hg5 53.Kf3 Rc3 54.d5 Ke5 55.dc6 f4 56.Rb5 Kf6 57.Kf2 fe3 58.Kf3 Kg6 59.Re5 Kh5 60.Re3 Rc6 61.Kg3 Rc1 62.Ra3 Rg1 63.Kh2 Rg4 64.Kh3 Rf4 65.Kg3 Re4 66.Rb3 Re5 67.Ra3 Kg6 68.Rf3 ½–½. Kuehnemund,Lutz (1920) – Vogel,Robert (2315), Berlin Lichtenberger op 8th, 2009.

9.e4 a5 10.a3 Qe7+=.

8.Nc3 Ne8

9.a3 Ndf6 10.Rc1 c6 11.d4 e4 12.Nd2 d5 13.Qb3 Be6 14.f3 ef3 15.Nf3 Ng4 16.e4?? (better is 16.cd5!? cd5 17.Na4+=) 16...Ne3 (better is 16...dc4!? 17.Bc4 Bd4 18.Kh1 Nf2 19.Rf2 Bc4 (19...Bf2 20.Be6 a5 21.Rf1 ab4 22.Rf2 fe6 23.Qe6 Kh8 24.Nd5 Ng7 25.Qe5+–) 20.Qc4 Bf2–+) 17.ed5+= cd5 18.Nd5 Bd5?? (18...Nf1 19.Rf1 Bd5 20.cd5+=) 19.cd5?? (better is 19.Qe3 Be6 20.Ne5+–) 19...Nf1+= 20.Bf1 Nd6 21.b5 Rc8 22.Qb4 Rc1 23.Bc1 Re8 24.a4 Bf8 25.Qc3 Ne4 26.Qd3 Qd5 27.Ne5? Nc5 28.Qe3 f6 29.Bc4+= Qc4 30.Nc4 Re3 31.Ne3 Nd3 32.Bd2= f5 33.Nd5 Bg7 34.Bc3 Kf7 35.Kf1 Ke6 36.Nc7 Kd7 37.Na8 Nf4 38.g3? Nd5 39.Bb2? Kc8–+ 40.a5 White prepares the advance b6 40...Kb8 41.b6 Ka8 42.Ke2 ab6 43.ab6 Nb6 44.Kd3 Nd5 45.Kc4 Ne3 46.Kc5 Nf1 47.Bc1 Nh2 48.d5 Nf3 49.d6 Kb8 50.Ba3 Kc8 0–1. elsh1403 – pluszowy (1685), kurnik, 2011.

9.d4 f5 10.de5 de5 11.c5 e4 12.Nd4 Ne5 13.Qb3 Kh8 14.Rad1 Qe7 15.Nd5 Qf7 16.Nf4 Qb3 17.ab3 Nc6 18.Nfe6 Nd4 19.Nd4 c6 20.b5 cb5 21.Bb5 Nc7 22.Bc4 Bd7 23.Rd2 Rae8 24.Rfd1 Bc8 25.Nb5 Ne6 26.Ba3 Rd8 27.Na7 Rd2 28.Rd2 Nc7 29.c6 Re8 30.Nc8 Rc8 31.cb7 Rb8 32.Bd6 1–0. Ostl – Rostalski, BL 1986.

9.e4 f5 10.ef5 gf5 11.Nd5 (11.d4 e4 12.Ne1 a5=) 11...c6 12.Ne3 f4 13.Ng4? (better is 13.Nc2=) 13...h5–+ 14.Nge5 de5 15.Ne5?? (better is 15.Qc2–+) 15...Ne5 16.Bh5 (16.d4 Ng4–+) 16…Qh4 (16...Qh4 17.Be5 Be5–+) 0–1. gtate (1810) – moonlightconcert (2125), net–chess.com, 2002.

8.d3 c6

9.Qc2 Re8 10.Nbd2 a5 11.a3 Qe7 12.Rfb1 b6 13.h3 (13.Bc3 ab4 14.ab4 Bb7+=) 13...Bb7 14.ba5 (14.Bc3 ab4 15.ab4 d5=) 14...Ra5 15.Bc3 Ra6 16.a4 Nc5 17.a5 ba5 18.Ra5 Ra5 19.Ba5 e4 20.de4 (20.Ne1 ed3 21.Nd3 Nce4=) 20...Nfe4 21.Ne4 Ne4 22.Nd2 Nf2=+ 23.Nf1 Ne4–+ 24.Bf3 Ng5 25.Be2 c5 0–1. Engles,Michael – Stanley,Bob (1935), IECC, 2002.

9.Nc3 Qe7=.

9.Nbd2 Qe7 10.Qc2 Re8 11.Rfc1 Nh5 12.c5 d5 13.e4 Nf4 14.Bf1 Nf8 15.g3 Nh3 16.Kg2 g5 17.Ng1 Ng1 18.Kg1 Be6 19.Re1 Ng6 20.d4 f6 21.Bd3 Bf7 22.de5 fe5 23.Nf1 d4 24.Nd2 Qf6 25.Qd1 Rad8 26.Rc1 Bf8 27.Qg4 Be6 28.Bc4 Bc4 29.Nc4 Qe6 30.Qe6 Re6 31.Rcd1 Be7 32.a3 Rd7 33.Rd3 Rf6 34.Bc1 Rf7 35.Kg2 Kg7 36.h4 gh4 37.f4 hg3 38.f5 Nh4 39.Kg3 Bf6 40.Rh1 Nf5 41.ef5 e4 42.Rdd1 Rd5 43.Bf4 e3 44.Kf3 Re7 45.Rdg1 Kh8 46.Rg6 Rf5 47.Nd6 Rf4 48.Kf4 Be5 49.Kf3 e2 50.Nf5 Rf7 51.Ke2 Rf5 52.Re6 Bf6 53.Rf1 d3 54.Kd3 Rf1 55.Re8 Kg7 56.Rb8 Rd1 57.Ke4 Rb1 58.Kf5 Bb2 0–1. Benko – Saidy, New York, 1968.

9.Nbd2 Nh5 10.Ne1 Nhf6 11.Nef3 Qe7 12.Qb3 d5 13.a3 Re8 14.Qc2 e4 15.de4 de4 16.Nd4 Ne5 (better is 16...Rd8!?+=) 17.Ne4+/– Neg4 18.Ng3 Qc7 19.c5 h5 20.Nf3 Be6 21.h3 Nh6 22.Be5 Qc8 23.Qb2 Bh3?? (23...Qd8+–) 24.Bf6 Bf6 25.Qf6 Bg4 26.Bc4 Be6 27.Ne5 Bc4 28.Nc4 Re6 29.Qg5 Kh7 30.Nd6 Qc7 31.Ne2 b6 32.Nf4 Re7 33.Nf7! Nf7 34.Qg6 Kh8 35.Qh5 Kg8 36.Qg4 Kf8 37.cb6 Qe5 38.Rfd1 Qg7 39.Qg7 Kg7 40.Kf1 ab6 41.Ke2 Rg8 42.Rd6 Kf8?? 43.g3 Ne5?? 44.Ne6 Kf7 45.Rad1 Re6= 46.Rd7?? Kf6 (46...Kf6 47.R7d4 Ra8=). Fournier,Frederic (1815) – Bruns (1855), rated blitz game (5/0), 2002.

8.d3 Qe7

9.Qc2 c6 10.Nbd2 Re8 11.Rab1 b6 12.Rfd1 Bb7 13.a4 d5 14.b5 Rac8 15.Ra1 c5 16.a5 d4 17.e4 Rf8 18.ab6 ab6 19.Ra7 Rb8 20.Rda1 Ne8 21.Nf1 f5 22.ef5 gf5 23.Ng3 Nd6 24.Bc1 e4 25.Bg5 Qe6 26.Nh4 Bf6 27.Qd2?? e3!–+ 28.fe3 Bg5 29.Nhf5 Nf5 30.Nf5 Qf5 31.Qe1 Be3 32.Kh1 Bf2 33.Qd1 Ne5 34.R1a2 Qg5 35.Bf1 Qh4 36.Qe2 Bg3 37.Rb7 Qh2# 0–1. Dias,Jose OG (1635) – Guerreiro,N (2100), VII Open Figueira da Foz POR, 2010.

9.Nc3 b6 10.Nd2 Bb7 11.Bf3 d5 (11...c6!?+=) 12.cd5+/– Qb4 13.Qc2 Rfe8 14.Nc4 e4 15.Ba3 (better is 15.Ne4!? Nd5 16.Rab1+=) 15...ed3= 16.Qd3 (worse is 16.Bb4 dc2 17.Rac1 Ba6-/+) 16...Ne5 17.Ne5 (worse is 17.Bb4 Nd3 18.Ba3 Ba6-/+) 17...Qa3 18.Nc4 Qc5 Increases the pressure on d5 19.Rac1 Rad8 d5 draws heavy fire 20.Rfd1 Ba6 21.Ne4 White prepares the advance d6 21...Ne4 22.Be4 c6 23.d6 Rd7 24.Bf3 Red8 25.Qb3 Bc4 26.Rc4 (worse is 26.Qc4 Qc4 27.Rc4 c5-/+) 26...Qe5 27.Rc6 Rd6 28.Rcd6 Rd6 29.Bd5 Rd7 30.g3 Bf8 (30...Rc7 31.Kg2=) 31.Kg2 Bc5 32.a4 Kg7 33.e4 Rc7 34.f4 Qe7 35.e5 a5 (35...Qd7 36.Be4 Qg4 37.Rd2+=) 36.Qf3 (36.Qb2 Bb4+=) 36...Bb4+= 37.Qe4 Qc5 38.Bb3 Re7 (38...b5 39.ab5 Qb5 40.f5 gf5 41.Qf5 Qc6 42.Rd5=) 39.h4 (39.Rd8 Qc3 40.Rd3 Qc1+=) 39...Qc3= 40.Rd3 Qb2 41.Kh3 Qf2 (41...Qb1!?=) 42.Rd1+/– Qb2 43.Rb1 (better is 43.Bc4!?+/–) 43...Qc3+= 44.h5 Qc8 45.Kg2 Qg4 (45...Rd7 46.Rd1+=) 46.hg6+= hg6 47.e6 f6 (47...Bc3!?+=) 48.Rc1+/– Bc5 49.Rd1 Qh5 50.Rd8 Bb4 51.Bd1 (51.Rd7 Qg4 52.Bd1 Qf5+/–) 51...Qc5? (better is 51...Qf5!? 52.Qf5 gf5+=) 52.Qa8+– Kh6 (52...Re6 53.Rg8 Kf7 54.Bb3 Qe7 55.Rh8 Qf8 56.Rf8 Bf8 57.Qc6 Bd6 58.Qd7 Be7 59.Be6 Kf8 60.Qc8 Bd8 61.Qd8 Kg7 62.Qg8 Kh6 63.Qh8) 53.Rd5 Qc3 54.Rd7?? (better is 54.f5 Kg7 55.fg6 Re6 56.Rd7 Re7 57.Re7 Be7 58.Qd5 Kg6 59.Qg8 Kh6 60.Qh8 Kg6 61.Qe8 Kh6 62.Qe7 Qc6 63.Kh2+–) 54...Rd7 0–1. Langheinrich,Ferenc (2435) – Syperek,Sebastian (2195), Dresden GER, ZMDI Open, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.d3 Qe7)

9.Nc3 c6 10.a4 (10.d4 Re8=) 10...Rd8 11.b5 Nc5 (11...d5 12.cd5 Nd5 13.Nd5 cd5 14.a5=) 12.a5 Bg4 (12...cb5 13.cb5 Bg4 14.d4+=) 13.d4 ed4 14.Nd4 (< 14.Qd4 Nb3 15.Qf4 Na1 16.Ra1 a6-/+) 14...Be2 15.Qe2 cb5 16.cb5 a6 17.b6 Ncd7 (17...Ne6 18.Rfd1+=) 18.Rfc1 Ne5 (18...Rac8 19.Rc2+=) 19.Rc2+/– d5 20.Ba3 Qd7 (20...Qe8 21.Rac1+=) 21.Rac1 Re8 22.Nb3 Rad8 23.Bb2 Qf5 24.Qd1 Nc4 25.Na4 Nb2 26.Nb2 Bf8 27.Nd4 Qg5 28.Nd3 Ba3 29.Rb1 Bd6 30.Nc5 Ng4 31.g3 Bc5= 32.Rc5 Re3 33.Rc7 Re4 34.Nf3 Qf5 35.Rb7 Rde8 36.Rb2 Qh5 37.Qd2 Qh3 38.Rb1 R4e5 39.Qd4 Rf5=+ 40.Re7 Rf8 41.Rb3 Rf3 42.Rf3 Qh2 43.Kf1 Qh1 44.Ke2 Nh2 45.Rb3 Qc1 46.Qc3 Qf1 47.Kd2 Qf2 48.Re2 Nf1 49.Kd1 Qg1 50.Kc2 d4 51.Qe1 d3 52.Rd3 Qc5 53.Kb2 Qc4 54.Qc3 Qc3 55.Rc3 Kg7 56.g4 Rd8 57.g5 h6 58.b7 Rb8 59.Rc7 hg5 60.Rf2 (60.Rf2 g4 61.Rf1+–) 1–0. Hoch,Hubertus (2165) – Offenborn,Heinz (2180), remoteschach.de, 2005.

9.Nbd2 b6 10.Qc2 Bb7 11.a4 e4 12.de4 Ne4 13.Bg7 Kg7 14.Ne4 Be4 15.Qc3 Nf6 16.Ng5 Bf5 17.Bf3 Rae8 18.Bc6 Bd7 (18...Qe5!? 19.Qd2 Bd7+=) 19.Bd7+/– Qd7 20.Nh7! Kh7 21.Qf6 Rh8 22.a5 Kg8 23.ab6 ab6 24.h3 Qc6 25.b5 Qb7 26.Ra3 Rh5 27.Rfa1 Rf5 28.Qd4 Rg5 29.g3 Qc8 30.h4 Rge5 31.Ra7 Kh7 32.R1a4 g5 33.hg5 Rg5 34.Qf6 Rg7 35.Qf3 Kg6 36.c5! dc5 37.Rg4 Kh7 38.Rh4 Kg8 39.Qh1 (39.Qh1 Rg6 40.Rh8 Kg7 41.Qh7 Kf6 42.Rc7 Qc7 43.Re8 Rg3 44.fg3 Qg3 45.Kf1 Qf3 46.Ke1 Qg3 47.Kd2 Qg2 48.Kc3+–) 1–0. Fournier,Frederic (1820) – akalai (1710), rated blitz game(2/12), 2002.

9.Nbd2 h6 10.Qc2 Nh7 11.Rac1 c6 12.d4 ed4 13.Bd4 Ne5 14.Ne5 Be5 15.Nf3 Bd4 16.Nd4 c5 17.bc5 ½–½. Ianov,Viktor (2415) – Blehm,Pawel (2435), Frydek Mistek op, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 Nbd7 7.0-0 e5 8.d3 Qe7)

8.d3 Ne8

9.Qc2 Qe7 10.Nc3 c6 11.Rfd1 (11.d4 Nef6+=) 11...f5 (11...Nef6 12.Ne4+=) 12.a3 (12.d4 Nc7+=) 12...g5 (12...Nc7 13.h3+=) 13.h3 h5 (13...Nc7 14.Re1+=) 14.Nh2 (14.Nd2!?+/–) 14...g4+= 15.hg4 hg4 16.Ng4?? (better is 16.e4 Ndf6 17.ef5 Bf5 18.Nf1+=) 16...fg4-/+ 17.Bg4 Ndf6 18.Bf3 Ng4 19.Ne4 (19.b5 Rb8-/+) 19...Qh4–+ 20.Ng3?? (better is 20.Bg4 Bg4 21.Rf1–+) 20...Qh2 21.Kf1 Ne3! 22.fe3 Rf3! (22...Rf3 23.gf3 Qc2–+ (23...Qg3?! 24.Qf2 Qf2 25.Kf2+=)) 0–1. Souza,K Garcia De (1765) – Montufar Berrios,LV (1750), Curitiba BRA, Terzian Mem, 2014.

9.Nc3+= f5 10.Qb3 g5 11.Rac1 g4 (11...Rf7 12.Nd2+=) 12.Nd2 Qh4 (12...a5 13.c5 Kh8 14.Qa3+=) 13.c5 (13.f4 Rf7+=) 13...Kh8 14.Nd5 (better is 14.cd6!? Nd6 15.Nd5+/–) 14...c6=+ 15.g3 Qg5 16.f4 (16.Nc3 dc5 17.bc5 Nc5-/+) 16...gf3 17.Nf3 Qh6 18.Ne7 Qe3 19.Rf2 e4 (better is 19...dc5!? 20.bc5 Nc5 21.Rc5 Qc5-/+) 20.Nh4= Ne5 (20...dc5? 21.Nhf5 c4 22.Rc4+– (22.Ne3?! cb3 23.Rf8 Nf8 24.Bg7 Ng7=; 22.Qc4?! Qf2 23.Kf2 Bb2+/–)) 21.Nc8 (21.de4 Qb3 22.ab3+/–) 21...Rc8= 22.Ng2 Qh6 (22...Qg5 23.Rcf1 Nd3 24.Bd3 ed3 25.Bg7 Qg7 26.Qd3 dc5 27.bc5=) 23.de4 Nf6 24.ef5 (24.Qe6 Nfg4 25.Qh6 Bh6 26.Rf4+/–) 24...Ne4?? (better is 24...Neg4 25.Bg4 Ng4 26.Bg7 Kg7 27.Qc3 Rf6-/+) 25.Rf4+/– Ng5 (25...d5 26.Re1+/–) 26.Rh4 Qf6 (26...Nh3 27.Kf1 Qf6 28.g4+/– (< 28.Rh3 Qf5 29.Kg1 Qf2 30.Kh1 Qe2-/+)) 27.Rf1 (27.Nf4 Qf5 28.cd6 Ngf3 29.Bf3 Nf3 30.Qf3 Bb2+–) 27...Nef3 28.Bf3+– Qb2 29.Qb2 Bb2 30.cd6 Rf5 31.Nf4 Rd8 32.Bg4 Rf6 33.d7+– Bc3 34.a3 Bb2? 35.Re1 Kg8 36.Rh5 Nf7 37.Re8 Kg7 38.Ne6 Re6 39.Be6 Bf6 (39...Ba3 40.Rf5 Rd7 41.Bd7 Bb4 42.Re4+–) 1–0. Cottarelli,Franco – Bonnafous, Cannes FRA, 1996.

9.Nc3 f5 10.Qb3 Kh8 11.d4 e4 12.Nd2 Ndf6 13.Rac1 Be6 14.d5 Bg8 15.Qa4 Nd7 16.Nb3 Ne5 17.Na5 Qh4 (17...Rb8 18.a3+=) 18.Qc2 (18.Nb7!? f4 19.ef4 Qf4 20.Nd1+/–) 18...g5 19.Nb5 c6 (19...b6!? 20.Be5 Be5+=) 20.dc6+/– bc6 21.Nd4 (better is 21.Be5!? cb5 22.Bg7 Ng7 23.cb5+–) 21...c5+= 22.bc5 dc5 23.Ndc6 Nc6 24.Nc6 Nf6 25.Ne7 Be6 26.Nd5 Bd5 (26...Rad8!?+=) 27.cd5+/– Rae8 (27...Rac8+/–) 28.f4 (better is 28.Qc5 Rd8 29.Rfd1+–) 28...ef3+= 29.Rf3 (29.Bf6 Rf6 30.Rf3 g4+=) 29...Nd5 30.Bg7 Kg7 ½–½. Espig,Lutz – Podgaets,Mikhail, WchT U26, 1968.

9.Nc3 f5 10.Qc2 g5 11.Nd2 Ndf6 12.f4 g4 13.d4 e4 14.d5 Nh5 15.c5 Rf6 16.g3 Rh6+= 17.Kf2 Qe7 18.Nb3 Bd7 19.Bc4?? Ng3!–+ 20.Rg1 Rh2 21.Rg2 Qh4 22.Rag1 Qh3 23.Ke1 Rg2 24.Qg2 Qg2 25.Rg2 Nh5 26.c6 Bc8 27.Nb5 Bb2 28.Rb2 a6 29.N5d4? b5 30.Bf1 Nef6 31.Rd2 Nd5 32.Nf5 Nb4 33.Ne7 Kf7 34.a3 Ke7 35.ab4 g3 36.Bg2 Nf6 37.Kf1 h5 38.Kg1 h4 0–1. Zainutdinov,I (2085) – Zubaidullin,Rustem, 6th ch–PriFO Men, Kazan RUS, 2008.

9.Nc3 f5 10.Qc2 g5 11.c5 c6 12.cd6 Nd6 13.Qb3 Kh8 14.d4 e4 15.Ne5 Qe7 (worse is 15...Be5 16.de5 Ne8 17.Na4+/–) 16.Nd7 Bd7 17.d5 Nf7 18.Rad1 ½–½. Mittelbachert,Ulrich – Schippan,Bernd, Ruhrgebiet VL1, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.d3 Ne8)

9.Nbd2 e4 10.Bg7 ef3 11.Bf8 fe2 12.Qe2 Nf8 13.Ne4 Nf6 14.f3 Bd7 15.Qb2 Ne4.

8.d3 Nh5

9.Nc3 a5 10.b5 Nhf6+=.

9.Nbd2 e4 10.Bg7 ef3 11.Bf8 fe2 12.Qe2 Qf8 13.d4=.

9.Nbd2 f5 10.e4 (10.c5 d5+=) 10...f4 (10...Nf4!?=) 11.d4+= Qf6 (11...a5 12.Qb3+=) 12.de5 de5 13.c5 b6? (better 13...Kh8!?+–) 14.Bc4+– Kh8 15.c6! Nb8 (15...Qc6 Decoy theme: c6 16.Bd5) 16.Be5 Qe7 17.Bg7 Qg7 18.b5 a6 19.a4 (19.Qa4 Re8+–) 19...ab5 (better 19...g5+–) 20.ab5 Ra1 21.Qa1 Qa1? (21...Bg4+–) 22.Ra1 Bg4 (22...Re8 23.Ra7+–) 23.h3 (23.Ne5!? Nf6 24.Ra7 Bh5+–) 23...Bf3 24.Nf3 (24.gf3?! Rd8 25.Nb3 Nf6+–) 24...Nf6 (24...Re8 25.Ng5 h6 26.Ne6+–) 25.Ra7 (25.e5!? Ne4+–) 25...Ne4 26.Bd3 (better 26.Rc7 Re8 27.Ne5 Nc6 28.Nf7 (28.Rc6?! Re5 29.Rb6 Nd2 30.Rb8 Kg7 31.Rg8 Kf6+–; 28.bc6?! Re5 29.Rc8 Kg7+–) 28...Kg7 29.Nd6 Re7 30.bc6 Rc7 31.Ne8 (31.Ne4?! Rc6 32.Bb5 Rc1 33.Kh2 Rb1=) 31...Kf8 32.Nc7+–) 26...Nc5 27.Be2 (better 27.Ne5 Rc8 28.Be2+–) 27...Ne6?? (better 27...Rf7+–) 28.Bc4+– Nc5 (28...Nc6 29.bc6 Re8 30.Be6 Re6 31.Rc7+–) 29.Rc7 (29.Rc7 Ne4 30.Re7+–) 1–0. sirgeshdb (1615) – Blaunase (1820), lichess.org, 2020.

9.Nfd2 f5 10.Bh5 gh5 11.Qh5 Nf6 12.Qf3 e4 13.Qe2 Qe8 14.Nc3 d5 15.cd5 Nd5 16.Nd5 Bb2 17.Nc7 Qg6 18.Na8 f4 19.ef4 Bh3 20.Qe4 Rf4 21.Qg6 1–0. Bonetti,Shane – capanegra, ICC, 2002.

7.0-0 e4

8.Nd4 Na6 9.a3 c5 10.bc5 Nc5 11.d3 Re8 12.Qc2 ed3 13.Bd3 Nd3 14.Qd3 d5 15.Rd1 Be6 (15...Ng4 16.cd5 Qh4-/+ (16...Qd5?! 17.h3 Ne5 18.Qc2=)) 16.Ne6+= fe6 17.cd5 Nd5 18.Qe2 Qb6 19.Bg7 Kg7 20.Nd2?? (better is 20.Ra2+=) 20...Nc3-/+ 21.Qf3 Nd1 22.Rd1 Rf8 23.Qe2 Rad8 24.g3? (24.Ne4 e5 25.Rc1 Qb3–+) 24...Rd5 25.Qe1 Rfd8 26.Kg2 (26.Rb1 Qa5 (26...Rd2?! 27.Rb6 ab6 28.Qa1 Kf7 29.Qe5=) 27.Ne4 Qe1 28.Re1 b5–+) 26...Qb2 27.Rb1 Qa3 28.Nc4 Qa2 29.Rb7 Kh6 30.Nb2? Rd2–+ 31.Qc1 Re2 32.e4?? Rdd2?? 33.Rh7 Kh7–+ 34.Qc7 Kh6 35.Qf4 Kg7 36.Qc7 Kf6 37.Qf4 Ke7 38.Qc7 Rd7 39.Qc5 Kf7 (40.Nc4 Rc2 41.Ne5 Kg7–+) 0–1. valpa – adamant, playchess.de, 2003.

8.Nd4 Nc6 9.a3 Ne5 10.f4 Ned7 11.Nc3 a6 12.Rc1 c5 13.Nb3 b6 14.d4 ed3 15.Qd3 Qe7 16.Bf3 Rb8 17.Rcd1 Bb7 18.Bb7 Rb7 19.Rfe1 Rc7 (19...Qe6 20.b5 Ra8 21.ba6 (21.Qd6?! Qc4 22.Nd2 Qe6 23.Qe6 fe6=) 21...Ra6 22.Nb5+/-) 20.b5 d5 21.ba6 dc4 22.Qc4 Ra8 23.e4 Qe6 (better 23...Rca7!?+/-) 24.Qe6+- fe6 25.e5 Ne8 (25...Nd5 26.Nd5 ed5 27.Rd5 Nf8+-) 26.Nb5 (26.Nb5 Nf8 27.Nc7 Nc7 28.Rd6 Ra6 29.g3+-) 1-0. Teralion (2780) - Banelevich (2625), Rated blitz game, lichess.org, 2022. (=1.Nf3 A15: English Opening: 1...Nf6 1...Nf6 2.e3 g6 3.c4 Bg7 4.b4 0-0 5.Bb2 d6 6.Be2 e5)

8.Ne1 Re8 9.Nc3 Nc6 10.b5 Ne5 11.d4 ed3 12.Bd3 Nd3 13.Nd3 Ne4 (13...a6 14.ba6 Ra6 15.Nd5=) 14.Ne4= (14.Ne4 Bb2 15.Nb2 Re4 16.Qd5=). pumpkin (2255) – kerger (2315), net–chess.com, 2003. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.c4 e5 7.0-0 e4)

8.Ne1 Bf5 9.d3 ed3 (9...Nc6 10.b5 Na5 11.Nd2=+) 10.Nd3 Nbd7 11.Nc3 Re8 12.Rc1 (12.Nb5 a5 13.a3 Nb6=) 12...Ne4 13.Ne4 Be4 (13...Bb2 14.Nb2 Be4 15.f3=) 14.Bg7= Kg7 15.Nf4 Qf6 (15...b6 16.Bf3=) 16.Nd5 (16.c5 Qe5+=) 16...Bd5 (16...Qd8 17.Qd4 Nf6 18.Rfd1+=) 17.cd5 Rac8 (17...Qd8 18.Qd4 Nf6 19.Qc3+=) 18.Qd3 (18.Bg4 Re7+/-) 18...a6 (18...Qb2 19.Rfd1=) 19.Rc2+= Re7 20.Rfc1 Nb6 (20...h5 21.h3+= (21.Rc7? Rc7 22.Rc7 Ne5-+)) 21.Bf3 (21.Bg4!? Rb8 22.Rc7 Rc7 23.Rc7 Qa1 24.Bd1+/-) 21...h5 22.Qc3 (22.Qb3 Qg5+=) 22...Qc3 23.Rc3 Kf8 (23...g5 24.g4 hg4 25.Bg4+=) 24.h4+= Ke8 25.g4 (25.Kh2 Kd8+=) 25...hg4 26.Bg4 Rd8 27.Rc7 Nd5 28.Re7 Ke7 29.Bf3 (29.a3 f5 30.Bf3 Ke6+=) 29...Nb4= 30.a3 (30.Rb1!? Nd3 31.Rb7 Ke6 32.Bg4 f5 33.Be2=) 30...Nc6=+ 31.Bc6 (31.Bd5 Rd7=+) 31...bc6 (better 31...Rc8!?-/+) 32.Rc6= a5 33.Ra6 Rb8 (33...Rh8 34.Ra5 Rh4 35.Kg2=) 34.Ra5+= Rb2 35.Kg2 Ke6 36.Kg3 f5 37.f3 (37.Ra8 Rb1+=) 37...Rb3 (37...Re2 38.Ra8+=) 38.Kf4 Rb1 39.h5 gh5 40.Rf5 h4 41.Rh5 Rh1 42.a4 h3 (42...Ra1 43.a5 h3 44.e4+=) 43.a5 (43.Rh6 Kd7+/-) 43...Rh2 44.a6 Ra2 45.a7 Ra7 46.Rh6 Kd5 47.Rh3 Ra4 48.e4 Kd4?? (better 48...Ke6+=) 49.Rh5+- Ra6 (49...Kd3 50.Rd5 Ke2 51.Rd6+-) 50.Rd5 Kc4 51.Kf5 Ra3 (51...Rb6+-) 52.f4 Ra6 53.Ke6 Ra8 54.Rd6 Re8 (54...Rf8 55.Ke5 Kc5 56.f5 Re8 57.Re6+-) 55.Kf5 Rh8 56.Rf6 (56.e5 Rf8 57.Ke4 Rg8+-) 56...Kc5 (56...Rb8 57.e5 Ra8 58.Rd6+-) 57.e5 Rh1 (57...Ra8 58.e6 Kd6 59.Rf7+-) 58.Rd6 Re1 (58...Rh5 59.Kg6 Rh8+-) 59.Ke6 Rf1 60.f5 Rh1 61.Rd5 (61.f6 Rh8+-) 61...Kc6 62.Rd6 Kc7?? (62...Kc5 63.f6 Rh6+-) 63.Rd7 (63.Rd7 Kc6 64.f6+-) 1-0. Lance5500 (2435) - magdanoz (2325), lichess.org, 2016.

8.Nd4 c5

9.Nc2 cb4 10.Nb4 Nc6 11.Nc6 bc6 12.f3=.

9.Nc2 b6 10.b5 (10.f3 cb4 11.fe4 Nc6+=) 10...Bb7 (10...a6 11.ba6 d5 12.cd5 Na6 13.f3=) 11.Nc3 (11.f3 d5+=) 11...d5 12.Nd5 Nd5 13.Bg7 Kg7 14.cd5 Qd5 15.d4 ed3 16.Bf3 Qd7 (< 16...dc2 A) 17.Bd5?? cd1Q (< 17...cd1N 18.Bb7 Ne3 19.fe3+=; < 17...cd1B 18.Bb7 Be2 19.Rfe1+=) 18.Rfd1 Bd5 19.Rd5 a6–+; B) 17.Qd5 Bd5 18.Bd5+/–) 17.Bb7 Qb7 (17...dc2?? 18.Qf3+–) 18.Qd3 Nd7 19.Rfd1 Ne5 20.Qc3 f6 21.a4 Rad8 22.a5 Rfe8 23.a6 (23.Na3 Qe4=) 23...Qe4= 24.h3 Qc4 25.Qc4 Nc4 26.Kf1 Kf7 27.Ke1 Rd3?? (better is 27...Nb2 28.Rd8 Rd8=) 28.Rd3+– (28...Ne5 29.Rd6+–) 1–0. Bothe,Erhard – Dopper,Johan, corr, 1992.

9.Nc2 Nc6 10.a3 Be6 11.d4 ed3 12.Bd3 Ne5 13.Be5 de5 14.Nc3 e4 15.Be2 (15.Ne4 Ne4 Combination; 15.Be4 Bc4 Deflection) 15...Qc7 16.Nb5 Qe5 17.bc5 Qc5 18.Ncd4 Bd7 19.Nb3 Qg5 20.Re1 Rfd8 21.N3d4 Ng4 22.h3? (better is 22.Qb3+=) 22…Ne3!–+ (22...Ne3 23.fe3 Qe3 24.Kh1 Bb5 25.cb5 Rd4–+ (25...Qd4?! 26.Qd4 Bd4 27.Rac1–+; 25...Bd4?! 26.Bc4 Qg3 27.Re4 Ba1 28.Qa1–+)) 0–1. Tirado Parra,A (1925) – Paunovic,D (2520), Pamplona ESP, 6th San Juan Open, 2012.

9.Nc2 Nc6 10.a3 Be6 11.d4 ed3 12.Bd3 Ne5 13.Be5 de5 14.e4 b5 15.Qe2 cb4 16.ab4 Nh5 17.g3 Bg4 18.f3 Bh3 19.Rd1 bc4 20.Bc4 Qb6 21.Qf2 Rfd8 22.Nba3 Bf8 23.Rab1 Ng7 24.Bd5 Rac8 25.Qb6 ab6 26.Ne3 Rc3 27.Bf7 Kf7 28.Rd8 Re3 29.Nc4 Re2 30.Ne5 Ke7 31.Nc6 Kf7 32.Ra1 Ne6 33.Ra7 Kf6 34.e5 Kg5 35.f4 Kg4 36.Rh7 Rg2 37.Kh1 Rc2 38.Rh4 Kf3 39.Rd1 Bg2 40.Kg1 Rc6 41.f5 gf5 42.Rh5 Ke2 43.Ra1 Be4 0–1. Miltner – Pfrommer, BL, 1991.

9.Nc2 Nc6 10.b5 Nb4 (10...Na5!?=) 11.Nb4+= cb4 12.Qb3 (12.Qa4 Be6+=) 12...a5 (12...Qa5 13.f3+=) 13.ba6 ba6 14.Qb4 Be6 15.a4 (15.d4 Rb8 16.Qd2 Qb6+/–) 15...Rb8= 16.Qa3 Qc7 (16...Qc8=) 17.Nc3 (17.Bd4!?+=) 17...Bc4=+ 18.Bc4 Qc4 19.Rac1 (19.f3 Rb3 20.Qa2 d5=+) 19...Rb3 (19...Qd3 20.Nb1 Qa3 21.Ba3=) 20.Qa1 Qb4 21.Ne2?? (21.Nd5 Nd5 22.Bg7-/+) 21...Rb2–+ 22.Rc6 (22.Rb1 Rb1 23.Rb1 Qd2–+) 22...Nd5 (22...Qd2 23.Nd4–+) 23.Nc3 (23.Ra6 Nc7 24.Rc6 Rd2–+) 23...Nc3 (23...Rd2 24.Nd5 Rd5 25.Qa2–+) 24.dc3 Qb7 25.Rd6 Rd2 26.Qc1?? Rd6–+ 27.c4 Rfd8 28.c5 Rc6 29.Rd1 Rdc8 30.Qa3 Rc5 31.Qb3 Qb3 32.Rf1 Rc1 33.h3 Rf1 34.Kf1 Rc1 35.Ke2 Qc2 (35...Qd3) 0–1. toll (1640) – foxbat, ICC, 2003.

9.bc5 dc5

10.Nb3 Na6? 11.d4! Dopper.

10.Nb3 Qc7 11.Nc3 Be6 12.f4 (12.f3 ef3 13.Rf3 Nbd7=) 12...Qc8 (12...Rd8 13.Qc2 Bf5 14.Nb5=+) 13.Rb1 (13.d3 Rd8 14.Qc2 ed3 15.Bd3 Ng4=) 13...Rd8=+ 14.Qc2 b6 (better is 14...Bf5=+) 15.Ne4+/– Ne4 16.Qe4 Nc6 (16...Qc6 17.Bf3 Bb2 18.Rb2 (18.Qc6?! Nc6 19.Rb2 Rac8+/–) 18...Qe4 19.Be4+–) 17.Qf3 (17.Bf3 Bb2 18.Rb2 Rd6+/–) 17...Qd7 18.Bg7 Kg7 19.a3 Re8 20.g4 (20.d3 Rad8+/–) 20…f5 (21.g5 Rad8+=). Bedbur,Heinz – Dopper,Johan, corr SOK–92–78, 1992.

10.Nb3 Qc7 11.Nc3 Bf5 12.f3 Nbd7 13.fe4 Be4 14.d3 Bc6 15.d4 Ne4 16.Qd3 f5 17.d5 Ne5 18.Qc2 Nc3 19.Bc3 Bd7 20.Rad1 Qd6 21.Nd2 Rae8 22.e4 Rf7 23.Qb3 b6 24.Bb2 Rfe7 25.Rf2 Nf7 26.Bg7 Kg7 27.Qa3 fe4 28.Qc3 Kg8 29.Qe3 Qe5 30.Nf1 Nd6 31.Ng3 Bf5 32.a4 Rf7 33.a5 Ref8 34.ab6 ab6 35.Qb3 Rb8 36.Nf1 b5 37.cb5 c4 38.Qe3 Rb5 39.g4 Bd7 40.Rf7 Kf7 41.Nd2 Rd5 42.Bc4 Nc4 43.Rf1 Kg7 44.Nc4 Qd4 45.Qd4 Rd4 46.Ne3 Rd3 47.Kf2 Kf6 48.h4 Ke5 49.Re1 h6 50.Re2 Be6 51.Re1 Rd2 52.Kg3 Kd4 53.g5 hg5 54.hg5 Ra2 55.Ng2 Ra3 56.Kf2 Rf3 57.Kg1 Rg3 58.Rd1 Ke5 59.Ra1 Rg5 60.Ra5 Kf6 61.Rg5 Kg5 62.Kf2 Kg4 (63.Ke3 Bf5–+) 0–1. Dopper,Johan (2195) – Pommerel,Wim (2405), corr 3GMM–F, 2001.

10.Nb3 Qc7 11.f3 ef3 (11...Ng4 12.fg4 Bb2 13.Nc3 Ba1 14.Qa1=+) 12.Bf3 Ng4 13.Bg7?? (better 13.Bg4 Bb2 14.Bc8 Rc8 15.Nc3 Ba1 16.Nd5-/+) 13...Qh2 0–1. GuestNSDK – GuestZBZL, freechess.org, 2017.

10.Nb3 Qd6 11.Nc3= Nc6 12.f3 ef3 13.Bf3 Ne5 14.Nb5 Qb8 (14...Nf3?? 15.Qf3 (15.Rf3?! Qe7=) 15...Qc6 16.Bf6 Qf3 17.Rf3+– (worse is 17.gf3 Bf6 18.Rab1 Bf5+=)) 15.Be5 Qe5 16.Re1 Qe7 (16...Bh6 17.Kh1=) 17.Qe2 (17.d4 a6 18.Nc3 cd4 19.ed4 Qb4=) 17...Ne4 (17...Re8 18.Rad1+=) 18.d4= a6 19.Be4 (19.Nc7 Nc3 20.Qd3 Qc7 21.Qc3 Rb8+=) 19...ab5+= 20.Bd5 (20.Nc5 Ra3 21.Bd5= (21.cb5? b6–+)) 20...cd4+= 21.Nd4 bc4 22.Bc4 Ra5 23.Rac1 Rc5 24.Qf3 Bh6 Attacking the isolated pawn on e3 25.Rc2 b6 26.Bb3 (26.Nc6 Qd7 27.Nd4 Bb7-/+) 26...Bb7 27.Qf2 Rd8 28.Rd2 Re5 29.Rde2 Rd6 (29...Rd6 30.e4 Ba6+= (30...Be4? 31.Re4 Re4 32.Re4+–; 30...Re4? 31.Re4 Be4 32.Re4+–)) 0–1. Recasens Sanchez,JA (2120) – Alonso Gonzalez,C (2465), AEAC W/X COPA/Pr–01, 2008.

10.Nb3 Qd6 11.d4 ed3 12.Qd3 (12.Bd3?? Ng4 13.g3 Bb2–+) 12...Qd3 13.Bd3=.

10.Nb3 Nbd7 11.f3 ef3 (11...b6 12.Nc3=) 12.Bf3 Rb8 (12...Qe7 13.Qe2=) 13.Na3 (13.Nc3 Ne5 14.Nd5 Nd5 15.Bd5 Qd6=) 13...a6 (13...Qe7 14.Nb5 a6 15.Na7=) 14.Qe2 (14.Rb1 Re8=) 14...Re8= 15.Rae1 Qc7 16.Qf2 b6 (16...b5 17.cb5 ab5 18.Rc1+=) 17.d4 Bb7 18.Bb7 Qb7 19.Nd2 (19.dc5 Qe4+=) 19...Re7 20.d5 Rbe8 21.Qf3 Ne5 22.Be5 Re5 23.e4 b5 24.Re2 Qd7 25.Rb1 (25.Ref2 h6=+) 25...R5e7 26.Rbe1 h5 27.h3 h4 28.Qf2 Nh5 29.Qc5 Ng3 30.cb5 Ne2=+ 31.Re2 Rc8 32.Qb6 Rc1 33.Nf1 Qe8 34.d6= Re6 35.Nc2? Qb5 36.Qb5 ab5 37.Rd2 Rf6 38.Nce3–+ Bh6 39.Rd1 Rd1 40.Nd1 Rd6 41.Nc3 Rb6 42.Nh2 Bg7 43.Nd5 Ra6 44.Nf3 Ra2 45.e5 Rb2 46.Nf4 b4 47.Nd3 Rb3 48.Nc5 Rc3 (49.Ne4 Re3–+) 0–1. St_Jean,Benoit – Benassi,Aspasio, Orang–Utan Invitational, 2001.

10.Nb5 a6 11.N5c3 Nc6 12.f3 ef3 13.Bf3 Ne5 14.Be2 Nd3 15.Ba3 Be6 (15...Bf5 16.Rf5 gf5 17.Qc2=+) 16.Bd3= Qd3 17.Bc5 Rfc8 18.Bd4 Nh5 19.Bg7 Ng7 20.Nd5 Bd5 21.Nc3?? (better 21.cd5 Qd5 22.Nc3+=) 21...Bc4–+ 0–1. samyaksamadhi – abhailey, net–chess.com, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4 8.Nd4 c5 9.bc5 dc5)

10.Nb3 Qe7

11.Nc3 b6 12.f3 Bb7 (12...Rd8 13.Qc1 ef3 14.Bf3=) 13.fe4 (13.Ne4 Ne4 14.Bg7 Kg7 15.fe4 Be4=) 13...Ne4 14.Nd5 (14.Qc1 f5=) 14...Bd5 15.Bg7 Kg7 16.cd5 Nd7 17.Qc2 f5 18.Rac1 (18.Bf3 Ndf6=+) 18...Nef6 (18...Ndf6 19.Bc4=+) 19.Qb2 Kh6 (19...Kg8 20.d6 Qd6 21.Bc4 Kg7 22.d4=+) 20.Rf3= Qe5 (20...a5 21.d4=) 21.d4+= Qd5 (21...cd4 22.Nd4 Rae8 23.Bb5+=) 22.Rh3 (22.dc5 Kg7 (worse 22...Nc5 23.Nc5 bc5 24.Rh3 Kg7 25.Bf3+–) 23.c6 Ne5+=) 22...Kg7= 23.Bf3 Ne4 24.dc5 Rf6 (24...Ndf6 25.Rd1 Qe6 26.Rh4+=) 25.Rd1 Qb7 (better 25...Qe6 26.Rh4 Raf8 (26...Ndc5? 27.Nc5 bc5 28.Qb7 Rf7 29.Qa8+–) 27.cb6 ab6 (27...Nb6? 28.Be4 fe4 29.Nc5+–) 28.Be4 fe4+=) 26.g4+– h6 (worse 26...bc5 27.g5! c4 28.Rd6+– (28.gf6?! Ndf6 29.Be4 fe4+=)) 27.gf5 Re8 28.Qd4 (28.Rd4 bc5 29.Re4 Re4 30.Qg2+– (worse 30.Be4 Qe4 31.Nd2 Qf5-/+)) 28...Ndc5+= 29.Nc5 bc5 30.Qd7 Rf7?? (better 30...Qd7 31.Rd7 Rf7 32.Rf7 Kf7 33.Rh6 gf5=) 31.Qe8+– (31.Qe8 Qe7 A) 32.Be4? Qe8 33.fg6 Re7–+ (33...Qe4?! 34.gf7 Kf7 35.Kf2=); B) 32.Qe7 Re7 33.Be4 Re4 34.Rd7 Kf6 35.fg6 Kg6 36.Ra7+–) 1–0. Sergienko,Vladislav (2035) – Terekhov,Andrey (2300), Kyiv UKR, Independence Cup, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4 8.Nd4 c5 9.bc5 dc5 10.Nb3 Qe7)

11.Nc3 Nc6 12.d4 (12.Nd5 Nd5 13.Bg7 Kg7 14.cd5) 12...ed3 13.Bd3 Rd8 14.Qe2 Ne5 15.Rad1 Be6 16.Na4 Qc7 (16...Nd3 17.Rd3 Rd3 18.Qd3 Rd8) 17.Be5 Qe5 18.Nac5 Bc8 19.Qc2 Ng4 20.g3 b6 (20...Qh5 21.h4 Ne5) 21.Be4 (21.Bg6 Rd1 22.Bh7 Kh8 23.Rd1 (23.Qd1 Kh7 24.Qf3 Rb8)) 21...Bf5 (21...Rd1 22.Rd1 Rb8 23.Rd8 Bf8) 22.Bf5 (22.Ba8 Ra8 23.e4) 22...gf5 23.Nd7 (23.Nb7 Rd1 24.Rd1 (24.Qd1 Qc7)) 23...Qe6 24.h3 Nh6 25.Qd3 Rac8 26.Qd6 Rc4 27.Qe6 fe6 28.Nb6 Rd1 29.Nc4 Rd3 30.Rc1 Kf7 31.Kf1 Ke7 32.Ke2 Rd7 33.Nca5 Nf7 34.Nc6 Kf6 35.Rc5 Ng5 36.Ne5 Rb7 37.h4 Ne4 38.Ra5 Nc3 39.Kf3 Na2 (39...Rc7) 40.Nc5 Rb2 41.Ra6 (41.Ncd3 Rd2 42.Ra7 Rd3 43.Nd3) 41...Ke7 (41...Ke5 42.Nd3 Kd5 43.Nb2 Nb4 44.Ra5 Kc6) 42.Re6 (42.Ra7 Kd6 43.Ned3 Rc2 44.Rg7 Rc5 45.Nc5 Kc5 46.Rh7 Kd6) 42...Kd8 43.Rd6 Ke8 44.Nc6 Bf8 (44...Nb4 45.Re6 Kf8 46.Nb4 Rb4) 45.Rd8 Kf7 46.Nd7 (46.Ne5 Kg7 47.Rd7 Kg8 48.Ne6) 46...Be7 (46...Bg7) 47.Ra8 (47.Nde5 Kf6 48.Rd7 Bc5 49.Rh7 Nb4 50.Rh6 Kg7 51.Rg6 Kh7 52.Nb4 Bb4) 47...Rb7 48.Ra7 Ra7 49.Na7 Ke6 50.Nb8 Bc5 51.Nb5 Nb4 52.Nd4 (52.Ke2) 52...Kd6 53.Nb5 (53.Nf5 Kc7 54.Kf4) 53...Ke6 54.Nc7 Ke7 55.Nca6 Na6 56.Na6 Bd6 57.Ke2 Ke6 58.Kd3 Kd5 59.h5 h6 60.f4 Ba3 (60...Kc6 61.Kd4 Kd7 62.Nc5 Ke7) 61.Nc7 Kc6 62.Ne6 Kd7 63.Ng7 Ke7 64.Nf5 Kf6 65.e4 Bf8 66.g4 Kf7 67.Nh6 Bh6 1–0. Faber – Logak, Sachsen–Anhalt 1996.

11.d4 ed3 12.Qd3 Bf5 13.Qd1 Nc6 14.Bf3 Rad8 15.Qc1 Nb4 16.Nc3 Nd3 17.Qb1 Nf2! 18.Qe1 Nd3 19.Qe2 Nb2 20.Qb2 Qe3 21.Kh1 Ne8 22.Rac1 Rd3 23.Rfe1 Bc3 24.Re3 Bb2 25.Rce1 Re3 26.Re3 b5 27.Bc6 bc4 28.Be8 c3 29.Re1 c2 30.Bb5 Rd8 31.Be2 Re8 32.h3 c4 (33.Rg1 cb3–+) 0–1. hal1958 – Orlok, playchess.de, 2003.

11.f3 Nc6 12.Nc3 ef3 13.Bf3 Nb4 14.Qe2 Rd8 15.d4 cd4 16.ed4 Qe2 17.Ne2 Ng4 18.Bc3 Nc2 19.Ba5 b6 20.Rac1 Rb8 21.Rc2 ba5 22.Bg4 Bg4 23.d5 Rbc8 24.Na5? (better 24.Rf4!? f5 25.h3=+ (worse 25.Na5 Rd5 26.Nb3 Re5-+)) 24...Rd5!-/+ 25.Nb3 (25.cd5 Rc2 Pinning (25...Rc2 Deflection)) 25...Re5 26.Ned4 Re4 27.Nb5 Rec4 28.Rcf2 Rb4 29.Nd6 Rf8 (better 29...Rcb8!? 30.Rf7 Bf8-+) 30.Rf7-/+ Rf7 31.Nf7 Be6 32.Ng5 Bb3 33.ab3 Rb3 34.Ne6 Ra3 (34...Bh6!?-/+) 35.Ng7=+ Kg7 36.h3 (36.Rc1 Kf6=+) 36...h5-/+ 37.Kh2 h4 38.Kg1 a5 39.Rf4 g5 40.Rf5 Kg6 41.Rb5 (41.Rc5 a4-+) 41...Ra2 42.Rc5 a4 43.Ra5 Kf6 44.Kf1 a3 45.Kg1 Ke6 46.Kh2 Kd6 47.Kg1 Kc6 48.Kh2 (better 48.Kf1-+) 48...Kb6 49.Ra8 Ra1 50.Rg8 (50.g4 Ra2 51.Kg1 Kc5-+) 50...Rc1 51.Rb8 (51.Ra8 Rc3 52.Kg1-+) 51...Ka5 52.Ra8 Kb4 53.Rb8 Kc3 54.Ra8 Kb2 55.Rb8 Ka1 56.Rb5 (56.g3 Rc2 57.Kg1 hg3-+) 56...a2 57.Rg5 Kb2 58.Rb5 (58.Ra5-+) 58…Kc3 (58...Kc3 59.Ra5 a1R 60.Ra1 Ra1 61.g4 Kd4 62.Kg2 Ke3 63.g5 Ra2 64.Kf1 Ra5 65.Kg2 Rg5 66.Kh2 Rg3 67.Kh1 Kf3 68.Kh2 Kf2 69.Kh1 Rh3) 0-1. Kostenko,P (2465) - Shyam,SM (2510), Aeroflot Open B, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 d6 4.Bb2 e5 5.e3 Bg7 6.Be2 e4 7.Nd4 0-0 8.0-0 c5 9.bc5 dc5 10.Nb3)

11.f3 Nc6 12.fe4+= Ne4 13.Bg7 Kg7 14.Qc1 Rd8 15.d3 Nf6 16.Nc3 Ne5 (16...Nb4 17.Qd2=) 17.d4+= Neg4 18.Bg4 Ng4 19.Rf3 (worse 19.Nc5 Qe3 20.Qe3 Ne3-/+) 19...Qd6 (19...Qc7 20.Rf4 (20.Nc5 Qh2 21.Kf1 Qh1 22.Ke2 Qg2 23.Ke1 Qf3–+) 20...g5 21.Nd5+=) 20.Rg3+= (20.Nc5?? Qh2 21.Kf1 Qh1 22.Ke2 Qg2 23.Ke1 Qf3–+) 20...b6 (20...cd4 21.ed4 Re8 22.c5+=) 21.Qb2 (21.dc5 bc5 22.Ne4 Qe7 23.Nec5 Nh2 24.Qb2 Kg8 25.Kh2 Qh4 26.Rh3 Bh3 27.gh3 Rac8+–) 21...h5 (21...cd4 22.ed4 Bf5 23.Rf1+=) 22.Nd5 (22.Nb5 Qe7+=) 22...Kg8 23.dc5 bc5 24.e4 Bb7 25.Qc3 Bd5 26.cd5 Exerts pressure on the isolated pawn 26...c4 (26...Rac8 27.Rf1+=) 27.Nd4 (better 27.Qc4!? Rac8 28.Qd4+–) 27...Re8= 28.h3 Nf6 29.Ne6 Qb6 30.Kh2 Re6 31.de6 Qe6 32.Qd4 Ne4 33.Re3 f5 34.Rc1 The isolani on c4 becomes a target 34...Rc8 35.Ra3 a6 36.Rb1 Qe7 37.Ra6 Kh7 38.Kg1 (38.Ra7 Rc7 39.Rc7 Qc7 40.Kg1+=) 38...Kh6 (better 38...Qc5 39.Qc5 Nc5 40.Ra7 Kh6=) 39.Rbb6+– Rg8 (better 39...Qg7 40.Qg7 Kg7 41.Rg6 Kf7+–) 40.Rc6 (better 40.Qc4!? Qg5 41.Qc7+–) 40...c3+= 41.a4 Qh4 42.Qe3 Qg5 43.Qg5 (43.Rc3!? Nc3 44.Qc3+=) 43...Kg5= 44.a5 Rd8 (44...Kf4!?=) 45.Rg6+= Kf4 46.Rac6 Rd1 47.Kh2 Rc1 48.Rc4 Ra1 49.Rh6 Ra5 50.Rh5 Ke3 51.g4 Ra2 52.Kg1 Kd3 53.Rc3 (53.Rc7 fg4 54.hg4 c2=) 53...Nc3=+ 54.Rf5 (54.gf5?? Ne2 55.Kf2 Nf4 56.Kf3 Nh5–+) 54...Ke3 55.Kf1 Ne2 56.Rf7 (56.Rc5!?=+) 56...Nf4-/+ 57.Re7 Kf3 58.g5 Ra1 (58...Nh3 59.g6 Ra1 60.Re1-/+) 59.Re1 Ra5 60.Re7 (60.Rc1 Rg5 61.Rc3 Ke4-/+) 60...Rg5 61.Ra7 Nd5 (61...Nh3 62.Ra3 Kg4 63.Ke2-/+) 62.Rf7 Ke3 63.Ra7 Nf4 64.Re7 Kd4 65.Rd7 Nd5 66.Kf2 Rf5 67.Kg3 Ke4 68.Ra7 Rf3 69.Kh4 Kf5 (69...Ne3 70.Ra4 Ke5 71.Ra5 Ke6 72.Ra6 Kf5 73.Ra5 Kf6 74.Ra6 Ke7 75.Ra7 Kd6 76.Ra6 Kd5 77.Ra5 Kd4 78.Ra4 Kd3 79.Ra3 Kc4 80.Ra4 Kc5 81.Ra5 Kb4 82.Ra8=+) 70.Ra5 Rd3 71.Rb5 Rd1 72.Ra5 Rd3 ½–½. pierred – pcmvr, net–chess.com, 2018.

11.f3 Rd8 12.fe4 1–0. Iglesias,Pablo – De Vreesse,Seppe, UECC olm1 Gr, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.0-0 e4 8.Nd4 c5 9.bc5 dc5 10.Nb3 Qe7)

11.f3 Be6 12.fe4 Ne4 13.Bg7 Kg7 14.d4 Qg5 15.Qc2?? (better is 15.Rf4 f5 16.N1d2+/– (worse is 16.Nc5 Nc5 17.dc5 Qf6=)) 15...Qe3–+ 16.Kh1 Nf2 (worse is 16...cd4 17.Bf3 Bf5 18.Be4 Be4 19.Qb2–+) 17.Kg1 (17.Rf2 Qf2 18.Qd2–+) 17…Nh3 (17...Nh3 18.Kh1 Qg1 19.Rg1 Nf2) 0–1. Gilsky – Rawlings, corr, 1983. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4 8.Nd4 c5 9.bc5 dc5 10.Nb3 Qe7)

11.f3 ef3 12.Bf3 a5 13.Nc3 (13.a4 Bf5+=) 13...a4= 14.Nc1 Rd8 (14...Be6!? 15.Na4 Bc4=) 15.Na4+= Bf5 16.Ne2 Nc6 (16...Bd3 17.Bf6 Bf6 18.Nb6 Ba1 19.Na8=) 17.Bc6+/- bc6 18.Rf5 (better 18.Ng3 Bd3 19.Rf4+/-) 18...gf5=+ 19.Ng3 Qd6 20.Ba3?? Attacking the isolated pawn on c5 (20.Bc3 Ne4 21.Nf5 Nc3 22.Nc3 Qd2 23.Qd2 Rd2 24.Ng7 Kg7 25.Ne4 Rda2 26.Ra2 Ra2 27.Nc5-+) 20...Qd2-+ 21.Qd2 Rd2 0-1. Mely (2755) - ZaphodB (2380), ChessWorld.net, 2011.

11.f3 ef3 12.Bf3 Nc6 13.Nc3 (13.Bc6 bc6 14.Qf3 Bf5+=) 13...Ne5 14.Ba3 Nc4 (14...Nfd7!? 15.Nd5 Qd6 16.Nc5 Nc5+=) 15.Bc5+/- Nd6 16.Nb5 Nfe8 17.Rb1 Qd8 (17...Bf5 18.Nd6 Nd6 19.e4+/-) 18.N3d4 a6 19.Nd6 Nd6 20.Qb3 Bd4 21.ed4 (21.Bd4 Be6 22.Qb2 f5+/-) 21...Bf5 (21...Re8 22.Qb6 Nf5 23.Rbe1+/-) 22.Rbe1 (22.d3 Qe7+/-) 22...Qd7 23.Bd5 Rad8 (23...Rfd8 24.Bd6 Qd6 25.Qb7+/- (worse is 25.Bf7 Kg7=)) 24.Re5 Qb5 (24...a5 25.Rfe1+/-) 25.Qg3 Qd3 (25...Kh8 26.Re7 f6 27.Qe3+-) 26.Qh4 (26.Re3 Qb5+-) 26...Rd7 (26...b6 27.Bb6 Rde8 28.Re8 Re8 29.Qf4+/-) 27.Qh6 (27.Re7 Qd2 28.Rd7 Bd7 29.Bd6+-) 27...Rfd8+/- 28.Rfe1 Do you see the mate threat? (28.Rfe1 Be6 29.Be6 fe6 30.Re6+-) 1-0. Jove Grau,Luis - Wiedemann,Norbert, corr ICCF EU/M/GT/409, 1995.

11.f3 ef3 12.Bf3 Nc6 13.Nc3 Ne5 14.Nd5 Nd5 15.Bd5 Bg4 16.Qc2 Be2 17.Be5 Qe5 18.Rf2 Bg4 19.Raf1 Be6 20.Bb7 Rad8 21.Re2 Rd7 22.Bc6 Rd6 23.d4 Qg5 24.d5 Bg4 25.Ree1 Rb8 26.Nc5 Rb2 27.Ne4 Qh5 28.Qd3 Be5 29.Ng3 Bg3 30.hg3 Rg2 0–1. Ivlev – Vitolins, Riga 1964.

11.f3 ef3 12.Bf3 Nc6 13.Nc3 Bf5 14.Na4 Rac8 15.Nac5 b6 16.Na6 Nh5 17.Bg7 Ng7 18.a3 (18.c5 Ne5 19.Be2 Ne6 20.cb6 Bc2+/–) 18...Rfd8 19.Nb4 Nb4 20.ab4 Bd3 21.Be2 Bc4 (worse is 21...Rc4 22.Bd3 Rd3 23.Qe2+/–) 22.Bc4 Rc4 23.Nd4 Ne6 (23...Rb4? 24.Nc6 Qd6 25.Nd8 Qd8 26.Ra7+–) 24.Ne6 fe6 25.Qb3 Qb4 26.Qb4 Rb4 27.Ra7 Rb2 28.Rc1 Rf8 29.d4 b5 30.h4 Rf7 31.Rf7 ½–½. Degterev,Pavel (2225) – Dard,Michel (2155), WC–2014–S–00011, 2011.

11.f3 ef3 12.Bf3 Nbd7 13.Qe2=.

8.Nd4 Nbd7

9.b5 Nc5 10.Nb3 (10.Nc3 Bd7=) 10...Be6 11.Qc2 Na4 12.Bd4 c5 (12...a6 13.Nc3 Nc3 14.Bc3 ab5 15.cb5=) 13.bc6 bc6 14.Nc3 c5?? (better is 14...Nc3 15.Bc3 c5=) 15.Bf6+– (15.Na4?! cd4 16.Nd4 Bd7+/–) 15...Bf6 16.Na4 Ba1 17.Ra1 f5 18.d3 ed3 19.Qd3 Qf6 (19...f4+–) 20.Qd6 Rad8 21.Qa6 Qe5 Black plans f4 22.Nac5 Bc8 23.Qa7 Qb2 (23...f4 24.Nd3 Qe8 25.Re1+– (25.Nf4?! Rf4 26.ef4 Qe2+–)) 24.Bf3 f4 25.ef4 Rf4 26.Rf1 Rc4 (26...Rff8+–) 27.Qe7 Rcd4 28.Ne4 (28.Ne4 R4d7 29.Nf6 Qf6 30.Qf6+–) 1–0. pierred – anony, internet, 2014.

9.d3 c5 10.Nc2=.

9.d3 ed3 10.Bd3 (10.Qd3 Ne5 11.Qd2 Ne4=) 10...Ne5= 11.Be2 Qe7 12.f4 (better is 12.Nd2!?=) 12...Neg4-/+ 13.Qb3 (13.Qd3 Qe3 14.Qe3 Ne3-/+) 13...Qe3 (13...Ne3 14.Re1-/+) 14.Qe3 Ne3 15.Re1 c5 16.bc5 dc5 17.Nb5 (17.Nb3 Nc2 18.Na3 Na1 19.Ba1–+) 17...Nc2–+ 18.Nd2 (18.Nc7 Rb8 (18...Na1?! 19.Na8 Nc2 20.Rd1-/+) 19.Nd2 Rd8–+) 18...Ne1 19.Re1 Bg4?? (better is 19...Rd8 20.Bc3 Bf5–+) 20.Bf6+= Be2 (20...Bf6 21.Bg4 Rad8 22.Ne4 Bd4 23.Nd4 cd4 24.Nc5+=) 21.Bg7+/– Kg7 22.Re2 Rfe8 23.Re8 Re8 24.Kf2 a6 (24...Rd8 25.Ke3+=) 25.Nc7 Rd8 26.Nd5 (26.Ne4!?+=) 26...b5= 27.Ke3 (27.Ne4 bc4 28.Nec3 f5=) 27...bc4=+ 28.Nc7 Rd3 29.Ke2= Ra3 30.Nc4 Ra2 31.Kf3 a5 32.Nb5 f5 33.Nba3 Kf6-/+ 34.h3 Ke6 35.g4 Kd5 36.gf5 gf5 37.Ne3 Ke6 38.Nec4 a4 39.Kg3 Kd5–+ 40.Kh4 Ke4 41.Kg5 Rg2 42.Kh6 Kf4 43.Kh7 Rh2 44.Kg6 Rh3 45.Kf6 Rc3 46.Ke6 (46...Ke4 47.Nd6 Kd3 48.Nab5–+). CementHead – silverhammer, Live Game Caissa's Web, 2006.

8.Ne1 a5

9.b5 Nbd7 10.f3 (10.Nc3=+) 10...a4 (10...Nc5!?=+) 11.fe4= Ne4 12.Bg7 Kg7 13.Qc2 f5 (13...Ndf6 14.Nc3 Qe7 15.Ne4 Qe4 16.Nd3+=) 14.Nc3 (14.Nf3 Ndc5=) 14...Nc3 15.Qc3 Qf6 16.Rc1 Qc3 17.Rc3 Nc5 18.Bf3 (18.Nd3 Ne4 19.Rc2 g5=) 18...Bd7 (18...g5 19.Bd5=) 19.Nc2 c6 (19...g5 20.g3=) 20.Nd4 Rfc8 (20...Ne4 21.Rc2=) 21.Rb1+= Kf6 22.Ra3 Ke7 (22...Rcb8 23.Rb4+=) 23.Kf2 (23.Rb4 h6+=) 23...Ra7 (23...g5 24.d3+=) 24.bc6 (24.Rb4 cb5 25.Nb5 Ra5+=) 24...bc6 25.Rb6 (25.Ke2 Kd8+=) 25...Rac7 (25...Ne4 26.Ke2+=) 26.Ne2 Be6 (26...Rf8 27.Kg1+=) 27.Rb4 (27.d3 g5 28.Nd4 Bd7+=) 27...g5+= 28.g3 d5 (28...Rf8 29.d3+=) 29.Nd4 dc4 (29...Ne4 30.Be4 fe4 31.Rba4+–) 30.Ne6+– Ke6 (30...Ne6 31.Ke2+– (worse 31.Raa4 Nc5-/+)) 31.Rc4 Kd6 (31...Nd7 32.Rca4 (worse 32.Raa4 Nb6=+) 32...Rb8 33.g4+–) 32.Rac3 Ne4 (32...Nd7!?+–) 33.Be4+– fe4 34.Rd4 (34.Ra4?! Rf7 35.Ke2 Rcf8+–) 34...Ke5 35.Rc5 Kf6 36.Ra4 (36.Re4 Rb8 37.Ra4 Rb2+–) 36...Rd7 37.Rd4 Ra7 (37...Re7+–) 38.a4 Kg6 (38...Re7 39.Rd6 Re6 40.Re6 Ke6 41.Rg5+–) 39.Re4 Rf8 (39...Rd7 40.Ke2 Kf7 41.Rg5+–) 40.Ke2 Rf6 (40...Raf7 41.Rc6 Kg7 42.a5+–) 41.a5 Raf7 (41...h6 42.Rb4+–) 42.h4 h6 43.hg5 hg5 44.Rg4 (44.d4 Kh6+–) 44...Rf2 45.Kd1 1–0. Rooze,Jan (2305) – Gruzmann,Boris (2210), 17. ch–Euro Seniors +65, 2017. (=1.Nf3 Nf6 2.c4 d6 3.e3 g6 4.b4 Bg7 5.Bb2 0-0 6.Be2 e5 7.0-0 e4)

9.b5 Nfd7 10.Bg7+= Kg7 11.Nc3 Nc5 (11...f5 12.d4 ed3 13.Nd3 Ne5 14.Nf4 Re8 15.b6 c6+= 0.69) 12.d4 ed3 13.Nd3 Nd3 (13...Ne6 14.Qc2+= (14.b6 c6 15.Rb1 Nd7+= 0.44) 14...Nd7 15.Rfd1 Re8+= 0.59) 14.Qd3+/– Be6 (14...Nd7 15.Rfd1+/– (15.Qd4 f6+/– 0.78) 15...Re8+/– 0.78) 15.Bf3 Qc8 16.Qd4 Kg8 17.c5 dc5 18.Qc5 Nd7 19.Qd4 c5 20.bc6 bc6 21.Ne4 Rb8 22.Rfc1 Rb4 23.Qd6 Exerts pressure on the isolated pawn 23...Qb8 24.a3 Rb6 (24...Rb5 25.Qc6 Ne5 26.Qa6+/–) 25.Rc6 Rc6 26.Qc6 Ne5 (26...Qb2 27.Qc3 Rb8 28.Qd4+/–) 27.Qc3 Rc8 (27...f5 28.Ng5 Nf3 29.gf3+–) 28.Qa5+– Qb2 29.Rd1 Bb3 30.Re1 f5 (30...Nf3 31.gf3 h6 32.Kg2+–) 31.Nd6 (31.Nd2!? Rc1 32.Bd5 Bd5 33.Qd5 Nf7 34.Qa8 Kg7 35.Rc1 Qc1 36.Nf1 Nd6+–) 31...Rc1+/– 32.h4 (32.Bd5 Bd5 33.Qd5 Kf8=) 32...Re1 33.Qe1 Nf3 34.gf3 Qa3 35.Qd2 Qa1 36.Kg2 Qf6 37.Qb4 Bf7 (37...Be6!?+/–) 38.Qb8+– Kg7 39.Qc7 Kf8 40.Qf7 (40.Nf7 Qf7 41.Qf7 Kf7+–) 40...Qf7 41.Nf7 Kf7 42.f4 Ke6 43.Kf3 Kd5 44.Ke2 Kc4 45.Kd2 h6 46.f3 Kd5 47.Kd3 Ke6 48.Kc4 1–0. Panno,O (2485) – Duarte,L (2285), II Manuel Pereyra Puebla Mem, Mendoza A (6), 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4)

8.Ne1 c5

9.b5 b6 10.d3 Nbd7 11.de4 Ne4?? (better is 11...a6+/–) 12.Bg7+– Kg7 13.Qd5 Rb8 14.Qe4 Bb7 15.Qc2 Nf6 16.Bf3 d5 17.cd5 Nd5 18.Nd3 Qg5 19.Nd2 Rfe8 20.Rfe1 Rbd8 21.Rad1 c4 (21...h6 22.Ne4 Qe7 23.Qc4+–) 22.Qb2 (better is 22.Qc4 Rd7+–) 22...c3 23.Qa1 Rc8 24.Ne4 Qe7 25.Ng3 Nf6 26.Bb7 Qb7 27.Nb4 Re5 28.Rc1 Rb5 29.Nd3 Qc7 30.Rc2 Rd5 31.Nf4 Rd2 32.Rd2 cd2 33.Rd1 Qc1 34.Nfe2 Qa1 35.Ra1 Rc2 36.a4 Nd7 37.Ne4 Nc5 38.Nc5 Rc5? 39.Rd1+– Rc2 40.Kf1 a6 41.Nd4 Ra2 42.Ke2 Ra4 43.Rd2 b5 44.Rb2 b4 45.Nb3 Ra3 46.Kd3 a5 47.Kc4 h5 48.Nc5 a4? 49.Kb4 Ra1 50.Na4 f5 51.Nc3 Kf6 52.Nd5 Ke5 53.Nf4 Kf6 54.Kc3 Ra6 55.Rb8 Kg7 56.Rb7 Kh6 1–0. Bedbur,Heinz – Grabner,Helmut, EU/II/GT/39 corr ICCF, 1973.

9.b5 d5 10.cd5 Qd5 11.f3 Qd6 12.Na3 Be6 13.Qc2 ef3 14.Nf3 Nbd7 15.Nc4 Qc7 16.Nce5 Rac8 17.Bc4 Bc4 18.Qc4 Nb6 19.Qh4 h6 20.Rac1 Nbd5 21.Ba1 Qa5 22.Nc4 Qd8 23.Nfe5 Qe7 24.e4 g5 25.Qe1 Nf4 26.d3 Rcd8 27.Ne3 Rd4 28.Bd4 cd4 29.N3c4 N6h5 30.g3 Be5 31.Ne5 (31.gf4 Nf4 32.Qd1+= (worse is 32.Ne5 Qe5 33.Rf3 Qb5+=)) 31...Qe5+= 32.gf4 Nf4 33.Rf3 Qb5 34.Qd2 Kh7 35.Kh1 Qe5 36.Qc2 Kg7 37.Qc7? (better is 37.Qb3 b5 38.Qa3+=) 37...Nd3!–+ 38.Qe5 (38.Rd3 Qe4 Double attack (38...Qe4 Decoy)) 38...Ne5 39.Rb3 b6 40.Rc7 Rd8 0–1. Reis,Luis Sousa (2245) – Timon Piote,Silvia (2155), La Coruna op, 1999. (=1.Nf3 Nf6 2.b4 g6 3.c4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4 8.Ne1 c5)

9.b5 Nbd7 10.d3 Nb6 11.de4 (11.Nd2 ed3 12.Nd3 a6+=) 11...Ne4= 12.Bg7 Kg7 13.a4 a6 14.a5 ab5 15.cb5 d5 16.f3 Nd6 17.Nc3 Nbc4 18.Nc2 Be6 (worse is 18...Ra5 19.Qd5 Ra1 20.Ra1+/– (20.Na1?! Qe7 21.Ne4 Ne4 22.Qc4 Nf6=)) 19.Nd5 Ra5 20.b6 Ra1 (20...Rb5 21.Na3 Bd5 22.Qd5 Na3 23.Ra3+=) 21.Qa1 (worse is 21.Na1 Qg5 22.Nf4 Qe5 23.Ne6 Qe6 24.Bc4 Qe3 25.Kh1 Nc4-/+) 21...f6 22.Nc7 Bf7 23.Rd1 (23.Qa7!?=) 23...Nb6+= 24.Nb5 Nbc8 25.Qa8 (25.e4 Qe7+=) 25...Qe7 (25...Bb3 26.Nba3-/+) 26.Qb8 Bb3 27.Rd2 Bc2 28.Rc2 Nb5 (28...Nb5 29.Bb5 Nd6–+ (29...Qe3?! 30.Kf1–+); 28...Qe3?! 29.Kh1 Qe7 30.Nd6 Nd6 31.Qa7–+) 0–1. Melich,J (2120) – Nikolaou,G (2275), 9th Georgiev–Kesarovski Mem, 2010.

8.Ne1 c6

9.d3 ed3 10.Nd3 Qe7 11.Nd2 Nbd7 12.Qb3 White intends b5 12...Re8 13.b5 c5 (13...cb5 14.cb5 Nc5 15.Qa3=) 14.Bf3 g5 15.a4 g4 16.Be2 Ne5 17.Ne5 de5 18.Rfd1 Bf5 19.Bd3 e4 20.Be2 Rad8 21.Nf1 Rd1 22.Rd1 Rd8 23.Ng3 Bg6 24.Bf6 Qf6 25.Bg4 Rd3 26.Qb1 Qc3 27.h4 h5 28.Bh5 The passed pawn on h4 will quickly become a dangerous weapon 28...Bh5 29.Nh5 Be5 30.Rc1 Qd2 (30...Qa3 31.Rc2+=) 31.Kf1 f5 32.g3 Kh7 (32...Ra3 33.Rd1 Qc3 34.Kg2 Qc4 35.Rd8 Kf7 36.b6+=) 33.Rc2 (33.Nf4 Ra3 34.Rd1 Qc3+/–) 33...Qa5+= 34.Nf4 White begins to deal mighty blows 34...Bf4 35.ef4 Qa4 36.Kg2 Kg6 37.Qa2 Ra3 38.Qb2 Qb3? (better is 38...Rd3!?+/–) 39.h5 Kh5?? (39...Kf7 40.Qb3 Rb3+–) 40.Qg7 (40.Qg7 Qf3 41.Kh2 Qf4 42.gf4 Rh3 43.Kh3 e3 44.Qg5#) 1–0. Sulskis,S (2520) – Jovanic,O (2330), Open, Zadar CRO, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4)

9.d3 d5 10.Nd2 Qe7 11.Rb1 (11.cd5 Nd5 12.Bg7 Kg7 13.Ne4 f5+=) 11...Rd8+= 12.de4 de4 13.Qc2 White prepares c5 13...Nbd7 14.c5 (14.Rd1 Qb4 15.Ne4 Ne4 16.Bg7 Kg7 17.Qe4 Nf6+=) 14...Ne5 15.Be5 (15.Ne4?? Ne4 16.Nd3 Nd3 17.Bd3 Nf6–+) 15...Qe5 16.Nc4 Qg5 (16...Qe7 17.Nd6-/+) 17.Nd6 (17.f4 ef3 18.Nf3-/+) 17...Qh4 (17...Bf8!? 18.Rd1 Bd6 19.Rd6 Be6-/+) 18.Rd1 (18.g3 Qh3=) 18...Bg4 (18...Nd5 19.Qe4 Qe4 20.Ne4=) 19.a3 (better is 19.f3!? ef3 20.Nf3+=) 19...Be2+= 20.Qe2 Rd7 (20...Nd5 21.Qc2+=) 21.f4 (21.Qc4 Ng4 22.h3 Be5=) 21...ef3 (21...Nd5!? 22.Rd2 a5-/+) 22.Nf3= Qh5 23.Rd4 Ng4 24.Rf4 (better is 24.h3 Ne5 25.Rf4=) 24...Nh2!-/+ 25.Qc4? (25.Nh2 Qe2 Pinning (25...Qe2 Deflection; 25...Qe2 Clearance)) 25...Nf1–+ 26.Qf1 (26.Kf1 Qd5–+) 26...Rf8 (better is 26...Qd5!? 27.a4–+) 27.e4 g5 (27...Qh6 28.Qc1–+) 28.Rf5 h6 29.e5 Qg4 30.Qd3 Re8! 31.Nh2 (31.Ne8 Rd3 Pinning (31...Rd3 Deflection)) 31...Qh4 32.Nf3 Qg3 33.Qc4 Rf8 34.e6 Rd6 35.cd6 Qd6 36.ef7 Kh8 37.Qe4 (better is 37.Kh1-/+) 37...Qd1 (better is 37...Bf6!?–+) 38.Kh2 Qd6 39.Kg1 Qd1 (better is 39...Bf6!?–+) 40.Kh2+= Qd6 (40...Qd7 41.Ne5 Qd6+=) 41.g3 (41.Kg1 Bf6–+) 41...Qg6 (better is 41...Bf6 42.Ra5 Rf7–+) 42.Ne5 Qh5 (42...Qe6 43.Rg5 Qa2 44.Kh3 Qe6 45.Kh2 Be5 46.Re5 Qf7 47.Re7 Qf2 48.Kh3=) 43.Kg2+= Rd8?? (43...Be5!? 44.Qe5 Kh7+=) 44.Ng6 (44.Rf2 Bf8 45.g4 Qh4 46.Ng6 Kg7 47.Nh4 gh4 48.Qe5 Kh7 49.Qf5 Kg7 50.Qf6 Kh7 51.Qd8 h5 52.Qf8 h3 53.Kf1 hg4 54.Rf6 h2 55.Rh6) 44...Kh7?? (better is 44...Qg6 45.f8Q Rf8 46.Rf8 Kh7 47.Qg6 Kg6+/–) 45.f8Q (45.f8N Rf8 46.Nf8 Kg8 47.Qe6 Kh8 48.Ng6 Kh7 49.Ne7 Qe2 50.Qe2 a6 51.Qe4 Kh8 52.Qc4 Be5 53.Qg8) 45...Bf8 (45...Rd2 46.Rf2 Rf2 47.Qf2 Qg6+–) 46.Rf8 Rf8 1–0. Petakov,Uros (2355) – Tomilova,Elena (2310), Novi Sad Serbia, Vojvodina Championship, 2010. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.0-0 e5 7.c4 e4)

8.Ne1 Nc6

9.a3 a5 10.b5 Ne5 11.f3 Be6 12.Qc2 ef3 13.gf3 (13.Nf3 Bf5 14.Qc3 Ne4=) 13...Re8 14.f4 (14.d4 Ned7 15.Ng2 Qe7=) 14...Ned7 15.Ng2 Nc5 16.Nc3 c6 17.Rae1 Rc8 18.bc6 bc6 19.Na4 Bf5 20.d3 Na4 21.Qa4 Nh5 22.Bg7 Ng7 (worse is 22...Kg7 23.e4 Bd7 24.Bh5 gh5 25.Kh1+/–) 23.Qc2 Qb6 24.Rb1 Qc5 25.Qc3 d5 26.Rb7 Bh3 27.d4 Qd6 (27...Qf8 28.Re1=) 28.Bf3 (worse is 28.Qa5 Nf5 29.Rf2 Bg2 30.Rg2 Re3-/+) 28...Nf5 29.Re1 (worse is 29.Qa5 Bg2 30.Bg2 Ne3–+) 29...dc4 30.Qc4 Qf6 31.Qc1 h5 (31...Bg2 32.Bg2 g5 33.fg5 Qg5+=) 32.Ra7 (32.Rb3=) 32...Qe6?? (better is 32...Nd4 33.Bd1 Re4-/+) 33.Ra5+/– Bg2 34.Bg2 (worse is 34.Kg2 Nd4 35.Bd1 Qe4 36.Kf2 Qe7+=) 34…Nh4 ½–½. Sydor,Andrzej – Vasiukov,Evgeni, Capablanca Memorial Elite (17), 1975. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4)

9.a3 a5 10.b5 Ne5 11.f4 Ned7 12.Nc3 Nc5 13.g4 b6 (13...h6 14.Rb1+=) 14.Rb1 (14.g5 Nfd7=) 14...Bb7 15.Nc2 d5 16.Ba1 (16.g5!? Ne8 17.cd5=) 16...dc4+= 17.Bc4 Ne8 18.Qe2 Nd6 19.Ba2 Nd3 20.a4 g5 (20...c5 21.bc6 Bc6 22.Nd4-/+) 21.f5 Ne8 22.Qg2 (22.Ne1 Qd6+=) 22...Nf6 23.Ne2 (23.Nd4 Qd6+=) 23...Qe7 24.h3 (24.Bc4 Qc5 25.Bb3 Qd6-/+) 24...Rad8 25.Ned4 Ne5 (25...Qd6 26.Bc4 Nc5 27.h4-/+) 26.Bb2 Nf3 (26...Rfe8 27.Qg3-/+) 27.Kh1 (27.Nf3 ef3 28.Qh2 Ne4-/+) 27...Rfe8+= 28.Rbc1 Nd7 29.Ba3 Nc5 30.Nb3 (30.Nf3? ef3 31.Rf3 Qe4–+) 30...Qe5 The backward pawn on d2 becomes a target 31.Ncd4 (31.Bc5 Qb2 32.f6 Qa2+=) 31...Nb3 (31...Na4 32.f6 Bf6 33.Rc4 Nd4 34.Nd4-/+) 32.Nb3-/+ Bf8 33.Bf8 Kf8 34.Rc2 Rd7 35.Rfc1 Red8 36.Qf2 Bd5 37.Rd1 (37.Nd4 Nd4 38.ed4 e3 39.Bd5 Qd5 (39...ef2?! 40.de5 Rd5 41.Kg2=) 40.Qg2 Qd4 41.de3 Qe3–+) 37...Bb3 (37...h5 38.gh5 Qf5 39.Qg2–+) 38.Bb3-/+ Rd3 39.Bc4 Ra3 (better is 39...Re3! 40.Ra2 Rc3–+) 40.Be2+= Ra4 41.Bf3 ef3 42.Qf3 Qb5 43.Rc7 Ra2 44.Qe4 Qd5 (44...Qe8!? 45.Qe8 Ke8-/+) 45.Qd5+= Rd5 46.f6 Re5 (46...Rd8 47.Kg2=) 47.Rb7+= Rb2?? (better is 47...Re8+=) 48.Rc1+– Rd2?? (48...Re8 49.Rcc7 Kg8 50.Rf7 Rc8 51.Rg7 Kf8 52.Rh7 Rb1 53.Kg2 Rg1 54.Kg1 Rc1 55.Kf2 Rf1 56.Kf1 Kg8 57.Rhg7 Kf8 58.Rb8#) 49.Rc8 (49.Rc8 Re8 50.Rbb8 Rd1 51.Kg2 Rd2 52.Kf3 Rf2 53.Kf2 Rc8 54.Rc8#) 1–0. Conquest,Stuart (2520) – Moskalenko,Viktor (2525), Arkadia op Greece, 1995. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4)

9.a3 Re8 10.d3 a5 (10...d5 11.Nc3-/+) 11.Nd2 (11.b5 Ne5=+) 11...ed3 12.Nd3 Bf5 13.b5 Ne5 14.Ne5 de5 (worse 14...Re5 15.Bf3 Qc8 16.Be5 de5 17.h3+–) 15.c5 (15.Nf3 Ne4=+) 15...Qe7-/+ 16.Qc1 a4 (16...Red8 17.Rd1-/+) 17.Qc4 c6 18.e4 (18.Rfd1 Red8 19.Rac1 Bd7=) 18...cb5-/+ 19.Qb4 Bd7 20.Bb5 Rec8 (20...Bb5 21.Qb5 Rec8 22.Rfc1=+) 21.Rfc1 (21.Bd7 Nd7 22.Rfd1 Qc5 23.Qb7 Ra7-/+) 21...Bb5-/+ 22.Qb5 Nd7 (22...Bh6 23.Rc2 Bd2 24.Rd2 Rc5 25.Qb4-/+) 23.Bc3=+ Rc5 24.Qb7 Rac8 25.Qb2 Qe6 26.Bb4 R5c6 27.Nf1 Nb6 28.Rd1 (28.Ne3 Nc4 29.Qe2 Ne3 30.Qe3 Bf8 31.Bf8 Kf8=) 28...Nc4 29.Qe2 Bf8 30.Ne3 Ne3 31.Qe3 Qb3 32.Qb3 (32.Bf8!? Qe3 33.fe3 Kf8 34.h3-/+) 32...ab3-/+ 33.Rab1 (33.Bf8 Kf8 (worse 33...Rf8 34.Rdb1=+) 34.Rab1 Rc3-/+) 33...Bb4–+ 34.ab4 Rc3 35.b5 R8c5 36.Kf1 Rb5 37.Rb2 Rc2 38.Rdb1 Rb2 39.Rb2 Kf8 (better 39...Rb4!?–+) 40.Ke2-/+ Ke7 41.Kd3 Rb4 42.f3? (better 42.Kc3 Re4 43.Kb3-/+) 42...Kd6–+ 43.Kc3 (43.Rb1 f5–+) 43...Kc5 44.h4?? (44.h3 f5 45.Rd2 b2 46.Rb2 Rb2 47.Kb2 Kd4–+) 44...Rb8 (better 44...Rc4 45.Kd3 Kb4 46.Rb1 Rc3 47.Kd2 Rc2 48.Ke3–+) 45.Rb3?? (better 45.g3 f5 46.ef5 gf5 47.g4-/+) 45...Rb3 46.Kb3 Kd4 47.Kb4 Ke3 48.Kc5 Kf2 49.Kd6 Kg2 50.Ke5 Kf3 51.Kf6 Ke4 52.Kf7 Kf5 53.Kg7 h5 54.Kh6 Kg4 55.Kg6 (55.Kg7 g5 56.Kf7 gh4 57.Ke6 h3 58.Ke5 h2 59.Kf6 Kf4 60.Ke7 h4 61.Kf7 h3 62.Kg7 h1Q 63.Kh8 Qg2 64.Kh7 h2 65.Kh6 h1Q) 55...Kh4 56.Kf5 (56.Kh6 Kg4 57.Kh7 Kg3 58.Kg6 h4 59.Kf5 h3 60.Ke5 h2 61.Kd6 Kf4 62.Kd5 Ke3 63.Kc4 Kf4 64.Kd5 Kf5 65.Kc5 h1Q 66.Kd6 Qh2 67.Kd7 Kf4 68.Kd6 Ke4 69.Kc5 Qd2 70.Kb5 Qg5 71.Kc6 Qg6 72.Kc5 Ke5 73.Kb4 Qg1 74.Kb3 Qg7 75.Ka2 Qg8 76.Kb2 Kd4 77.Ka3 Kc3 78.Ka4 Qd5 79.Ka3 Qb3) 56...Kg3 (56...Kg3 57.Ke4 h4 58.Kd4 h3 59.Kc5 h2 60.Kd6 Kf4 61.Kd5 Kg5 62.Kd4 h1Q 63.Kc4 Qc6 64.Kb3 Qe4 65.Ka2 Qc2 66.Ka1 Qd1 67.Ka2 Qd7 68.Ka1 Qd8 69.Kb2 Qc7 70.Ka1 Qe5 71.Kb1 Qd6 72.Kc1 Kh6 73.Kb2 Qb4 74.Kc1 Qc4 75.Kb1 Qd5 76.Kc2 Qe5 77.Kb3 Kg6 78.Kc2 Qe4 79.Kc1 Qg2 80.Kd1 Kg7 81.Ke1 Qb2 82.Kf1 Kf6 83.Ke1 Kf5 84.Kd1 Kf4 85.Ke1 Ke3 86.Kd1 Qd2) 0–1. Nieves Cabanes,Jose Manuel – Marchena Hurtado,J, Navarra Promotional, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 e4 8.Ne1 Nc6)

9.b5 Ne5 10.Be5 (10.f3 a6=) 10...de5=+ 11.Nc3 b6 (11...a6 12.f3 ab5 13.cb5 ef3 14.Nf3=+) 12.a4 (12.f3 Bb7+=) 12...Bb7 13.a5 ba5 (13...a6 14.ab6 cb6 15.ba6 Ba6 16.f3 ef3 17.Nf3=) 14.Ra5 c6 15.Ra2 cb5 16.Nb5 (16.cb5 Qb6=) 16...a6=+ 17.Nc3 Qc7 (17...Qd6 18.f3=+) 18.Nc2 (18.f3 ef3 19.Nf3 Rfd8=) 18...Rad8 (18...Rfd8 19.Qe1=+) 19.Qc1 (19.Nb4 Rd6=+) 19...Rd7 20.Rd1 Rfd8 21.Nb4 a5 22.Nc2 Ba6 23.Na3= Bf8 24.Ncb5 Qb8=+ 25.Qb2 Bb4 26.Nb1 Rc8 27.N1c3 Kg7 28.Ra4 Rcd8 29.g3 Qc8 30.Kg2 Bb5–+ 31.Rb4 ab4 32.Nb5 Qc5 33.Bf1 Ne8 34.f3 ef3 35.Kf3 Nd6 36.d4 Nc4 37.dc5 Nb2 38.Rb1 Rd1 39.Rb2 Rf1 40.Ke2 Rc1 (41.Rb4 Rc5–+) 0–1. Troc,Ryszard – Dopper,Johan, corr 3GMM–07, 1997.

7.0-0 Be6

8.a3 a6 9.d4 ed4 10.ed4 Bg4 11.h3 Bf3 12.Bf3 Re8 13.Bb7 Ra7 14.Bf3 Ne4 15.Nd2 f5 16.Ne4 fe4 17.Bg4 Nc6 18.Rb1 a5 19.b5 Ne7 20.Be6 Kh8 21.d5 Bb2 22.Rb2 Nf5 23.g4 Ng7 24.Qd4 c5 25.bc6 Qg5 26.Qa7 Ne6 27.de6 Re6 28.Rb8 1–0. Adamkosh (2040) – gid141, lichess.org, 2020.

8.a3 c6 9.d3 d5 (9...Nbd7 10.Nbd2=) 10.Nbd2 (10.Be5 dc4 11.dc4 Nbd7+–) 10...d4? (better 10...Nfd7!?+=) 11.ed4 ed4 12.Bd4 Bg4 13.h3 Bf3 14.Nf3 a5 15.Bc3 ab4 16.ab4 Ra1 17.Qa1 Nbd7 18.Re1 Qc7 19.Ne5 Ne5 20.Be5 Qe7 21.Kf1 Rd8 22.c5 Re8 23.d4 (23.Bf3 Qd8+–) 23...Nd5 24.Bg7 Kg7 25.b5 Nc3?? (better 25...Qf6 26.Bf3 Re1 27.Ke1 Nc7 28.bc6 bc6+=) 26.Qc3+– Kg8 (26...Qf6 27.Bc4 Rd8 28.Re4+–) 27.bc6 bc6 28.Bf3 Qd7 29.Re8 Qe8 30.Qe3 (better 30.Qa1!? Kf8+–) 30...Qd7 (30...Qa8 31.g4+–) 31.Qe4 1–0. Fournier,Frederic (1955) – anjoteru (1920), Active, 2005.

8.a4 a5 9.ba5 Ra5 10.Bc3 Ra7 11.Na3 c6 12.d3 Nbd7 13.Bb4 Qc7 14.a5 Nc5 Black prepares e4 15.Qb1 e4 16.Nd2 ed3 17.Bd3 Nfd7 18.Ra2 Na6 19.Ne4 Nb4 20.Qb4 d5 (20...Ra5 21.Rd1 Rfa8 22.Nd6 Bf8–+) 21.cd5+= Bd5 (worse is 21...cd5 22.Nb5 Qb8 23.Ng5+/– (23.Na7?! de4 24.Bc4 Qa7+=)) 22.Nc4 Ne5 23.Nc5 Nd3 24.Nd3 Bc4 25.Qc4 Ra5 26.Ra5 Qa5 27.Rb1 Rb8 28.Qf4 Rd8 29.Qe4 Qd2 30.Ne1 Qe2 31.Qf3 Qf3 32.Nf3 b5 33.Kf1 Bc3 34.Ke2 b4 35.Ne1 (35.Ng5 Rd2 36.Kf3 f5–+) 35...Rd2 36.Kf3 c5 37.Kg3 c4 38.Nf3 Ra2 39.Rd1 (39.Rc1–+) 39...b3 40.Rc1 b2 41.Rc3 0–1. Beck,A – Auer,Conny, PF–op Mehlingen, 1992. (=1.c4 Nf6 2.Nf3 g6 3.e3 Bg7 4.Be2 0-0 5.0-0 e5 6.b4 d6 7.Bb2 Be6)

8.b5 b6 9.Ng5+= Nbd7 (9...c6 10.f4 e4 11.Nc3+=) 10.Ne6 fe6 11.Nc3 Nc5 (11...a6 12.Bf3 Ra7 13.a4+=) 12.d4+– ed4 13.ed4 Ncd7 (13...Nce4 14.Qe1 Nc3 15.Bc3+–) 14.Bf3 Rb8 15.Qe2 (15.Re1 e5+–) 15...Re8 (15...e5 16.Nd5 Re8 17.Nf6 Bf6 18.Bd5 Kg7 19.Qd2+–) 16.Qd2 (16.Bc6 e5 17.d5 Re7+–) 16...e5 17.Bc6 (17.Rae1 ed4 18.Qd4 Ne5+–) 17...ed4 18.Qd4 Rf8 19.f4 Nc5 (19...Ng4 20.Qd5 Kh8 21.Qd2+–) 20.Rae1 (20.f5 Nh5 21.Qd5 Kh8 22.fg6 Nf4+=) 20...Nh5 (20...Nfd7 21.Qd2+–) 21.Qd2 Qh4 (21...a6 22.Nd5+–) 22.Nd5 (22.g3 Qd8+–) 22...Bb2 23.Qb2 Nf4?? (better 23...Nd3 24.Ne7 Qe7 25.Bd5 Qf7+–) 24.Ne7 (24.Nc7 Ncd3 25.Qd2 Ne1 26.Re1 Nd3-/+) 24...Kf7 25.Bd5 Ke8 26.Ng6 (26.Ng6 Qe1 27.Re1 Nce6 28.Nf4 Kd7 29.Be6 Ke8 30.Bf5 Kf7 31.Nh5 Rbe8 32.Qg7) 1–0. GuestSSPB – GuestHGKM, freechess.org, 2018.

8.b5 c6 9.a4 Nbd7 10.d4 e4 11.Nfd2 d5 12.Nc3 Re8 13.Ba3 Qc7 (13...c5 14.dc5 (worse 14.Bc5 Nc5 15.dc5 Rc8=) 14...Rc8 15.cd5 Bd5 16.Nd5 Nd5 17.Ne4 Ne3 18.fe3 Re4 19.c6 bc6 20.bc6 Rc6 21.Bf3+–) 14.Rc1+= h5 (14...Qa5!?+=) 15.cd5+– Bg4? (better 15...Bd5 16.Nd5 Nd5 17.bc6 bc6+–) 16.bc6+– bc6 17.Nb5! Qb8 (17...cb5 18.Rc7 Pinning (18.Rc7 Deflection; 18.Rc7 Clearance)) 18.dc6 Be2 19.Qe2 (19.cd7?! Bd1 20.de8R Qe8 21.Rfd1 Nd5+=) 19...Ng4 (19...Nb6 20.c7 Qc8 21.Nd6+–) 20.c7 (20.Nd6!? Qc7 21.cd7 Qd7 22.Ne8 Re8+–) 20...Qb6 21.Nd6 Re6 (21...Rec8 22.Qc4 Ndf6 23.Qf7 Kh7 24.Rfd1+–) 22.c8Q Rc8 23.Rc8 Kh7 24.Nf7 Ndf6 (24...Qa6 25.Qa6 Ra6 26.Ne4+–) 25.h3 Rc6 26.Ng5 (26.Bc5 Qb7 27.Rc6 Qc6 28.hg4 hg4+–) 26...Kh6 27.Bc5 Qb7 28.Rc6 Qc6 29.Nf7 Kh7 30.hg4 Ng4 31.Ne4! Qc7 (31...Qe4 32.Ng5 Double attack (32.Ng5 Decoy)) 32.Neg5 Kg8 33.Bd6 Qd7 34.Qa2 (34.Qa2 Qe8 35.Bc5+–) 1–0. guest110 – guest120, chessclub.com, 2018.

8.b5 Nbd7 9.Ng5 Nc5 (9...Bf5 10.Nc3=) 10.d4+= Nce4 (10...ed4 11.ed4 Nfe4 A) worse 12.dc5 Bb2 (worse 12...Qg5 13.Bg7 Kg7 14.Qd4 Qe5 15.Qe5 de5 16.c6=+; worse 12...Ng5 13.Bg7 Kg7 14.Nc3+=) 13.Ne4 Ba1-/+; B) 12.Ne6 Ne6 13.f3+=) 11.Ne6 fe6 12.de5 Nd7 13.Qc2 Qh4? Pawn f2, live or die! (better 13...Nec5 14.ed6 cd6 15.Bg7 Kg7+–) 14.g3+– Qg5 (14...Ng3 15.hg3 (15.fg3?! Rf1 16.Bf1 Qg5+–) 15...Qe7 16.ed6 cd6 17.Bg7 Kg7 18.Nd2+–) 15.Qe4 d5 (15...Nc5 16.Qg4 Qg4 17.Bg4 Rad8+–) 16.cd5 Nc5 17.Qc2 (17.Qc4 Qe7+–) 17...ed5 (17...Qe7 18.Bd4 b6+–) 18.Qc5 1–0. GuestHQPC – GuestDTLK, freechess.org, 2018.

8.Nc3 Nfd7 9.Qc2 f5 (9...Nc6 10.b5 Na5 11.Ne4+=) 10.d4 e4 11.Nd2 Nc6 (better 11...a5!? 12.a3 Bf7+=) 12.d5+- Nb4 13.Qb3 Nd3 14.Bd3 (14.de6?! N7c5 15.Qc2 Nb2=+) 14...ed3 (better 14...Nc5 15.Qa3 Nd3 16.de6 Re8+-) 15.de6 Nc5 16.Qa3 Ne6 17.Rab1 (17.Na4 Bb2 18.Nb2 f4+-) 17...Nc5 (17...f4 18.Nd5 Bb2 19.Qb2+-) 18.Na4 Bb2 (18...f4 19.ef4 b6 20.Bg7 Kg7 21.g3+-) 19.Nb2 b6 20.Nd3 Nd7 (20...Qd7 21.Nf3+-) 21.Nf3 Qf6 22.Qa4 Ne5 23.Nfe5 de5 24.c5 e4 (24...Rad8 25.Rfd1+-) 25.Nf4 Qe5 (25...Qf7 26.Rfd1 Rad8 27.Qc6+-) 26.Rfd1 g5 (26...Rfd8 27.Rd7 Rd7 28.Qd7+-) 27.Qb3 Kh8 28.Ne6 Rf6 Black prepares the advance f4 (28...Rfe8 29.Ng5 Qf6 30.h4+-) 29.Ng5 f4 (29...Qe8 30.Qc3 Qe7 31.c6+-) 30.Nf7 Kg7 (30...Rf7 31.Qf7 Qg7 32.Qf4 Rf8 33.Qe4 Qf7+-) 31.Ne5 fe3 32.Rd7 Kh6 (32...Kh8 33.Qe3 Rd6 34.Nf7 Kg8 35.Qg5 Rg6 36.Nh6 Kh8 37.Qe5 Rf6 38.Qf6) 33.Qe3 Kh5 34.Rh7 Rh6 35.Rh6 (35.Qh6?!=) 1-0. Vendelo – Tucuman, internet, 2021.

8.Nc3 h6 9.d4+= e4 (9...a5 10.ba5 Ra5 11.de5 de5 12.Nb5=) 10.Nd2+– d5 (10...Qe7!?+–) 11.cd5 Nd5 12.Nde4 Nb4 13.Nc5 Bc8 14.Bf3 c6 15.a3 Nd5 16.Nd5 cd5 17.Qb3 1–0. Dalia – Zardusi, internet, 2019.

8.d3 h6 9.Nbd2 Nh7 (9...a5 10.Qa4=) 10.h3 f5 11.Rb1 Nc6 12.a3 (12.b5 Ne7+=) 12...g5 13.Nh2 Ne7 14.f4 (14.d4 e4+=) 14...Ng6 (better is 14...ef4 15.ef4 Bb2 16.Rb2 Ng6 17.fg5 Qg5=) 15.fg5?? (better is 15.fe5 Be5 16.d4+=) 15...Qg5-/+ 16.Nhf3 (16.Rf3!? Nh4 17.Rf2 Qe3 18.Nhf3-/+) 16...Qe3–+ 17.Kh1 (better is 17.Rf2 Ng5 18.Bc1–+) 17...c6?? (better is 17...Nf4 18.Ng1 e4 19.Bg7 Kg7 20.de4 fe4–+) 18.c5-/+ Nf4 19.Re1 Qf2 20.Bf1 Ba2 21.cd6 Bb1 22.Qb1 Rad8 23.Be5 Be5 24.Ne5?? (24.Qb3 Kh8 25.Re5 Rd6–+) 24...Ng5 (24...Qd2 25.b5–+) 25.d7?? (better is 25.Ndc4–+) 25...Nd5 (better is 25...Qd2 26.b5 cb5–+) 26.Re2 Qd4 27.Qb3 (better is 27.Nb3!? Qc3 28.Nc5 Qa3 29.Nb7+/–) 27...Kh7 28.Nef3? (better is 28.b5!? cb5 29.Ndf3 (29.Qb5?? Nc3 30.Qa5 b6–+) 29...Nf3 30.Nf3= (30.gf3?? Qa1 31.Kg1 Rg8 32.Kf2 Qd4 33.Ke1 Rg7–+)) 28...Nf3 29.Nf3 Qg7 30.Ne5 Nb6 31.b5 Nd7 32.Nd7 Rd7 33.bc6 bc6 34.Rc2 (34.Qc4!?–+) 34...Qa1 35.Kg1 Qd4 36.Kh2 Qd6 37.Kg1 f4 38.Qc3 Rc7 (38...Rf6 39.Be2–+) 39.Be2-/+ Rg8 40.Bf3 Rgg7 41.Be4 Kg8 42.Qb3 Kf8 43.Qb8 Kf7 44.Qb3 Kf6 45.Qc3 Qe5 46.Qb4 c5 47.Qa5 Qd4 48.Kf1 f3 (better is 48...Rge7!? 49.Re2 Rcd7–+) 49.Qa6+= Kg5 (49...Kf7 50.Bf3 Qf6 51.Qb5+=) 50.Bf3 (50.h4 Kf4 (worse is 50...Kh4 51.Qh6 Kg3 52.Qh3 Kf4 53.Qf5 Kg3 54.Qf3 Kh4 55.g3 Rg3 56.Rh2 Rh3 57.Rh3 Kg5 58.Qf5) 51.Qh6 Kg3=) 50...Qa1 51.Kf2 Rge7?? (better is 51...Qf6 52.Qf6 Kf6+=) 52.h4! Kh4 (52...Kh4 53.Qh6 mate Mate attack) 53.Qh6 1–0. Souza,Kim Garcia De (1770) – Lisboa,Joana Cunha (1765), Championship Paranaense Women de Xadrez, 2016.

8.Ng5 Bd7 9.d4 h6 10.Nf3 e4 11.Nfd2 Re8 12.Nc3 Qe7 13.Nd5 (better 13.Nde4!? Ne4 14.Ne4 Qe4 15.Bf3=) 13...Nd5=+ 14.cd5 Qg5 15.g3 (15.Kh1 Qd5 16.f3 ef3 17.Bf3 Qb5=+) 15...Bh3-/+ 16.Re1 Qd5 17.Bf1 (17.f3 ef3 18.Bf3 Qb5-/+) 17...Qf5 (17...Bf1!? 18.Rf1 Na6–+) 18.Bh3-/+ Qh3 19.Qc2 (19.f3 a5-/+) 19...c6 20.Ne4 (better 20.f3!? ef3 21.Nf3-/+) 20...Qf5–+ 21.Qb1? (21.f3 d5 22.g4 Qf3 23.Nf2 Re3 24.Qd2 Re1 25.Re1–+) 21...Qe4 22.Qe4 Re4 23.Rac1 Nd7 24.Rc4 (24.f3 Re7–+) 24...Nb6 (better 24...Ne5 25.Rc2 Nf3 26.Kf1 Ne1 27.Ke1–+) 25.Rc2 Nd5 26.a3 a5 27.Rec1 (27.ba5 Ra5 28.h4 c5–+) 27...ab4 28.ab4 Nb4 29.Rc4 (29.Rc3 c5–+) 29...Nd3 30.Rb1 c5 31.Rc3 (31.Rc2 b5–+) 31...Nb2 32.Rb2 cd4 33.ed4 (33.Rc7 de3 34.Re2 ef2 35.Kf2 f5 36.Re4 fe4–+) 33...Bd4 34.Rc4 (34.Rcc2 Bb2 35.Rb2 Re7–+) 34...Re1 35.Kg2 Bb2 36.Rc7 Bd4 37.Rb7 Ra2 38.Rd7 Rf2 39.Kh3 Be5 (39...Rh1 40.Rd8 Kg7 41.Rg8 Kg8 42.Kh4 Rhh2 43.Kg4 f5) 40.Rd8 (40.Rc7 Ree2 41.Rc8 Kg7 42.Rc7 Rh2 43.Kg4 h5 44.Kg5 Bf6 45.Kf4 Rhf2) 40...Kg7 41.Rc8 (41.Ra8 Ree2 42.Ra7 Rh2 43.Kg4 h5 44.Kg5 Bf6 45.Kf4 Rhf2) 41...h5 (41...Ree2 42.Rc7 Rh2 43.Kg4 h5 44.Kg5 Bf6 45.Kf4 Rhf2) 42.g4 (42.Rc4 Ree2 43.Kh4 Rh2 44.Kg5 f6) 42...Re3 (42...Rh2) 43.Kh4 Bf6 44.g5 Rf4 (44...Rh2) 0–1. Markzela (1720) – GanzAnders (2160), lichess.org, 2020.

8.Nc3 a5

9.ba5 e4 10.Nd4=.

9.b5=.

8.Nc3 a6

9.a4 Nc6 10.b5 Na5 11.d3=.

9.a4 Nbd7 10.Qc2 (10.Ng5 a5 11.b5 Rc8+=) 10...c5= 11.b5 (11.bc5 Nc5 12.d4 ed4 13.ed4 Bf5=) 11...a5 (11...Qe7 12.Ng5+=) 12.e4 (12.Ng5 Qe7+=) 12...h5 (12...Nb6 13.d3=) 13.h3 (13.Ng5 Bh6 14.Ne6 fe6+=) 13...Nh7 14.d3 Bh6 (14...Ng5 15.Ng5 Qg5 16.Bc1+=) 15.Bc1 (15.Rae1 Ng5+=) 15...Kg7 15...Bc1 16.Qc1 Nb6 17.Qe3+=) 16.Bh6+= Kh6 17.Qd2 Kg7 18.Nd5 (18.Nh2 Qg5 19.Qe3 Qe3 20.fe3 Ng5=) 18...f5 (18...Bd5 19.ed5 f5+=) 19.ef5 (19.Nc3 Nb6+=) 19...Rf5 (19...Bd5 20.cd5 Rf5 21.Bd1+=) 20.Ne3 (20.Nc3 Qb6+=) 20...Rf7 21.g4 (21.Rfe1 Ng5=) 21...Qf8 (21...hg4 22.hg4 Qf6 23.Kg2-/+) 22.Kg2 (22.Nh2 Ng5 23.Kg2 hg4 24.Bg4 Qh8-/+) 22...Ndf6 (22...hg4 23.hg4 Rf4 24.Rh1-/+) 23.Nh2 h4 (23...hg4 24.hg4 d5 25.Bf3+=) 24.f4= ef4 25.Rf4 g5 (25...d5 26.cd5 Bd5 27.Nf3=) 26.Rf2 b6 (26...Kg8 27.Bf3+=) 27.Raf1 (27.Bf3 Rd8 28.Raf1 Kg8+/–) 27...d5+= 28.cd5 Nd5 29.Rf7 Bf7 30.Nd5 Bd5 ½–½. Holz auf der Heide,Gerhard (2010) – Schwagrowski,Bernd, Essen GER Senior Ch (B), 2005.

9.d4 ed4 10.Nd4 c5 11.Ne6 fe6 12.bc5 dc5 13.Qd8 Rd8+=.

9.Ng5 Bf5 10.f3 Nc6 11.Qb3 Nd7 (11...Qd7 12.a3+=) 12.Nge4+= Be4 (12...Be6 13.Nd5+=) 13.fe4+– Nf6 14.Rad1 Qc8 (14...Qd7 15.Rf3+–) 15.Rf3 b6 (15...Ra7!?+–) 16.Rdf1 Nd7? (better 16...Qd8!?+–) 17.c5! Qe8 (17...bc5 18.Rf7 Combination; 17...dc5 18.Rf7 Combination) 18.Nd5 Ra7 (18...Qd8 19.Rf7! Kh8 20.cb6 cb6 21.Qc2 Rf7 22.Rf7+– (22.Qc6?! Rf1 23.Bf1 Rc8 24.Qd6 Nf6 25.Qd8 Rd8=)) 19.cd6 cd6 20.Ba6! Ndb8 (20...Ra6 21.Nc7 Double attack (21.Nc7 Decoy)) 21.Bc4 1–0. Vendelo – Lucy, internet free game, 2018.

8.Nc3 c6

9.d3 Nbd7 10.e4 Nh5 (10...d5 11.Ng5=) 11.d4 (11.Bc1=) 11...f5 (11...ed4!? 12.Nd4 Nf4=+) 12.d5+= cd5 13.cd5 (13.ed5 Bf7+=) 13...Bf7= 14.ef5 gf5 15.Nd2 (15.Ne5 Ne5 16.Bh5 Bh5 17.Qh5-/+) 15...Nf4-/+ 16.Bf3 (16.Nc4!? Nf6 17.Ne3=+) 16...e4–+ 17.Be2 Nd5 (17...Rc8 18.Rc1–+) 18.Nd5 Bd5?? (better 18...Bb2!? 19.Rb1 Bg7-/+) 19.Bg7 (19.Nc4 Bc4 20.Bc4 Kh8 21.Bg7 Kg7 22.Qd6 Nb6 23.Qe5 Qf6 24.Qc7 Kh8+=) 19...Kg7= 20.Bb5 (20.Bc4!? Bc4 21.Nc4=) 20...Bc6 (20...Ne5 21.Nb3 Bb3 22.Qb3-/+) 21.Bc6 bc6 22.Nc4 d5 23.Ne3 (23.Na5 Ne5-/+) 23...Qf6 (23...Ne5 24.Nc2-/+) 24.Rc1 (24.b5 d4 25.bc6 A) 25...de3?! 26.cd7 (worse 26.Qd7 Rf7 27.Qd1 ef2 28.Rf2 Rc8-/+) 26...ef2 27.Rf2=; B) worse 25...Qc6 26.Qd4 Kg8 27.Rfc1+–; C) 25...Nc5 26.Nf5 Qf5 27.Qd4 Kg8-/+) 24...Rab8 (24...Ne5 25.f3 ef3 26.gf3 Qg5 27.Ng2-/+) 25.Qa4 Exerts pressure on the backward pawn (better 25.f3!? Qe6 26.Qa4=) 25...Ne5-/+ 26.Qa7 Kh8 27.Qc7 (better 27.a3-/+) 27...Qg6?? (27...f4!? 28.Nc2 f3–+) 28.a3 (28.Qe5 Qf6 29.Qc7 Rbc8+–) 28...f4?? (better 28...Rbe8 29.Kh1 f4-/+) 29.Nd1?? (29.Qe5 Kg8 30.Nc2 f3+–) 29...Rbc8?? (better 29...Nf3 30.Kh1 Rg8–+) 30.Qe5+– Kg8 31.f3 Rce8 32.Qc7 (32.Qd4 Rf7+–) 32...e3? (better 32...ef3 33.g3 Rc8+–) 33.Re1 e2 (33...Rf6 34.a4+–) 34.Nf2 (34.Rc6?! Qb1 35.Rc1 ed1N 36.Red1 Qf5+–) 34...d4 (34...Re6+–) 35.Rc6 Qh5 (35...Qb1 36.Rcc1 (36.Rb1?? e1Q 37.Re1 Re1) 36...Qb3 37.Qc4 Qc4 38.Rc4+–) 36.Ng4 Qh4 Threatening mate... how? 37.Rcc1 d3 (37...Rc8 38.Qc8 Qe1 39.Re1 Rc8 40.Re2 Rc3+–) 38.Qd6 (38.Qc4 Rf7 39.Qd3 Rd8 40.Qe2 Qg5+–) 38...Rd8?? (better 38...Qd8 39.Nh6 Kh8+–) 39.Qe6 Kh8 40.Qe5 Kg8 41.Qe6 (better 41.g3 Qg4 42.fg4+–) 41...Kh8 42.Qe5?? (better 42.Ra1 d2 43.Qe2 de1R 44.Re1+–) 42...Kg8= 43.Qe6 (better 43.g3 Qg4 44.fg4+–) ½–½. Markzela (1735) – UEssPfau (1905), lichess.org, 2020.

9.d4 a5 10.b5 cb5 11.Nb5 e4+=.

9.Ng5 Na6 10.a3=.

9.Ng5 Qe7 10.d4 ed4 11.ed4 d5 12.c5 Re8 13.Re1 (13.Ne6 Qe6 14.Re1 Qf5+=) 13...Qc7 (better is 13...Bf5=) 14.Bg4?? (better is 14.Ne6 Re6 15.b5+=) 14...Ng4–+ (14...Bg4?! 15.Re8 Ne8 16.Qg4=) 15.g3 (15.Qg4 Bg4 16.Re8 Bf8–+) 15...Nf6 16.Bc1 (16.Ne6 Re6 17.Re6 fe6–+) 16...h6 (16...Bf5 17.Re8 Ne8 18.Bf4–+) 17.Bf4 Qd7 18.Ne6 Re6 19.Qd2 (19.Re6 Qe6 20.Qd2 Kh7–+) 19...Kh7 (19...Ne4 20.Ne4 Re4 21.Be5–+) 20.Re2 (20.Re6 Qe6 21.Re1 Qh3–+) 20...Re2 21.Qe2 Na6 22.a3 (22.b5 cb5 23.Nb5 Ne4–+) 22...Re8 23.Qd2 Ne4 24.Ne4 Re4 25.Be3 Nc7 (25...Qg4 26.f4–+) 26.Rd1 (26.f3 Re8–+) 26...Nb5 27.f3 Re8 28.Qd3 (28.a4 Na3 29.Qd3 Nc4–+) 28...Qe6 29.Bf2 Qe2 30.Qe2 (30.Rd2 Qd3 31.Rd3 f5–+) 30...Re2 31.Rd3 (31.Kf1 Rb2–+) 31…Ra2 (32.Kg2 Bd4–+) 0–1. Richter,Rainer (2240) – Grabek,R, Marijampole op, 1994.

8.Nc3 Nbd7

9.Qc2 Nb6 10.Qb3 a5 11.a3 a4 12.Qa2 Nbd7 13.Rac1 c6 14.d4 b5 (better is 14...Qe7!?+=) 15.d5+/– cd5 16.cd5 (16.Nd5?! Rc8 17.Nd2 bc4 18.Bc4 Rc4 19.Nf6 Qf6 20.Nc4 Rc8=; 16.cb5? d4 17.Qb1 Bf5–+) 16...Bf5 17.Nb5 Nb6 18.Nc3 Nfd5?? (better is 18...Ne4+/–) 19.Nd5+– Be6 20.e4 f5 21.Bc4 Nc4 22.Qc4 Rc8 23.Qc8! Bc8 24.Rc8! Qc8 25.Ne7 Kh8 26.Nc8 Rc8 27.ef5 gf5 28.Rc1 Rc1 29.Bc1 e4 30.Ng5 d5 31.Ne6 d4 32.Ng7 Kg7 33.Bb2 (33.Bb2 Kf7 34.Bd4+–) 1–0. orangutanb4 (2095) – latofe2003 (1630), kurnik, 2011.

9.d4 c6 (9...a5 10.a3=) 10.de5 (10.d5 cd5 11.cd5 Bg4+=) 10...de5 11.Qc2 Qc7 (11...a5 12.b5=) 12.Rac1 Rad8 13.Rfd1 b6 (13...Nb6 14.c5 Nbd5 15.Nd5 Nd5 16.a3+=) 14.h3 h6 15.Qa4 White intends b5 15...e4 (15...Qb7 16.Nd2+=) 16.Nd4+/– White plans b5 16...c5 17.Ne6 fe6 18.b5 g5 (18...Ne5 19.Qc2+=) 19.Qc2 Qb7 20.Rd6 Rfe8 (20...Ne5 21.Rcd1 (21.Re6?! Nd3=) 21...Rd6 22.Rd6+/–) 21.Rcd1+– Bf8 22.Rc6 Be7? 23.Ne4 Ne4 24.Qe4 Bf6 25.Qg6 Kf8 26.Bf6 Nf6 27.Qf6 Qf7 28.Qf7 Kf7 29.Rd8 Rd8 30.Bg4 Rd2 31.Rc7 Kg6 32.Ra7 Rd6 33.Rb7 h5 34.Bf3 Kf5 35.Bc6 Rd2 36.Rb6 Ra2 37.Bd7 Ra1 38.Kh2 Ra2 39.Re6 Rf2 40.b6 Rb2 41.Bc8 g4 42.b7 Kg5 43.hg4 hg4 44.Re4 Kh4 45.Rg4 Kh5 46.Rg8 Rg2 47.Kg2 (47.Kg2 Kh6 48.b8Q Kh7 49.Bf5 Kh6 50.Qh2#) 1–0. orangutanb4 (1955) – czarnysalem1 (1875), kurnik, 2012.

8.d4 ed4

9.Nd4 Bd7 10.Qb3 Nc6 11.Nd2 a5 12.b5 a4 (12...Nd4 13.Bd4 c5 14.bc6 bc6 15.Rab1=) 13.Qa3+= Na5 (13...Nd4 14.Bd4 Qe7 15.Bf3+=) 14.h3 Re8 15.Bf3 h6 (15...Nh5 16.Rac1+=) 16.Bc3 Qc8 (16...Nh5 17.g4 Qh4 18.Bg2 (18.gh5?! Re5 19.Ne2 Rg5 20.Ng3 Rg3 21.fg3 Qg3 22.Kh1 Qh3 23.Kg1 Qg3 24.Kh1 Qh3 25.Kg1 Qg3 26.Kh1 Qh3=) 18...Bd4 19.Bd4+–) 17.Rfe1 (17.Rab1 Nh7+–) 17...g5 (17...Nh7 18.h4+–) 18.Rab1 (18.Rac1 h5+–) 18...h5 Black intends g4 19.Be2 (19.Bd1 g4 20.hg4 hg4 21.Qa4 c5+–) 19...g4 20.hg4 (worse 20.Qa4 gh3 21.Ba5 b6=) 20...hg4 21.Bd3 (21.g3 b6+=) 21...b6 (21...g3 22.fg3 Ng4 23.N4f3+–) 22.Qa4+– Nb7 23.Qc2 Nc5 24.Bf5 Bf5 (24...Ra3 25.Bd7 Qd7 26.Ne2+–) 25.Nf5 Nce4?? (better 25...Ra2 26.Ne7! Re7 27.Qa2 Qf5+–) 26.Ng7+– Nc3 (26...Re7 27.Ne4 Ne4 28.Bd4+–) 27.Ne8 (27.Qc3?! Kg7 28.Nf1 Ra2=) 27...Ne8 (27...Qe8 28.Qc3 Nd7 29.Qc2+–) 28.Qc3 Qf5 (28...Qe6 29.e4+–) 29.e4 Qf4 (29...Qe5 30.Qe5 de5 31.Rb2+–) 30.Ra1 Nf6 (30...Rd8 31.Nb3+–) 31.e5 Nh5 (31...de5 32.Qe5 Qe5 33.Re5+–) 32.ed6 g3 (32...Qd6 33.Ne4 Qe7 34.Rad1+–) 33.fg3 Ng3 (33...Qd6 34.Ne4 Qg6+–) 34.d7 Kh7 35.Re8 Kg6 36.Qd3 (36.Qd3 Kg7 37.Ra8 Qe5 38.d8Q Qa1 39.Nf1 Ne2 40.Qe2 Qd4 41.Qd4 f6 42.Qh5 c6 43.Qd7) 1–0. Leonco – Turner, internet corr, 2018.

8.d4 e4

9.Nfd2 a5 10.ba5 Ra5+=.

9.Nfd2 a5 10.b5+=.

9.Nfd2 a5!? 10.Nc3 ab4 11.Nce4 Ne4 12.Ne4 Re8=.

9.Nfd2 c6 10.a4 d5 11.Nc3 Qe7 12.Ba3 Rd8 13.b5 Qe8 14.Qb3 Bf8 15.Bb2 Nbd7 16.Rac1 Rac8 17.Rfd1 Bg7 18.h3 h5 19.Ba3 Bf8 20.Bb2 Bd6 21.cd5 cd5 22.Na2 Nb6 23.Nb4 Bb4 24.Qb4 Qf8 25.Qb3 Qh6 26.Rc8 Rc8 27.Rc1 Rc1 28.Bc1 Qf8 29.Ba3 Qc8 30.Bc5 Nbd7 31.Ba3 Nb6 32.a5 Nc4 33.Nc4 dc4 34.Qb4 c3 35.Qc5 b6 36.ab6 ab6 37.Qb6+/– c2 38.Qc6 Bd7? 39.Qc8 Bc8 40.b6 Bb7 41.Bc4 Nd5 42.Bb3 Nb6 43.Bc2 Kg7 44.Kf1 f5 45.Ke2 Bd5 46.Bc5 Nc4 47.Bb3 Nb6 48.Bb6 Bb3 49.f3 Bd5 50.fe4 Be4 51.g3 Bd5 52.Bc7 Kf6 53.Bf4 g5 54.Bd6 Kg6 55.Kd3 f4? 56.ef4 gf4 57.Bf4 Kf5 58.h4 Kg4 59.Ke3 1–0. elsh1403 – pluszowy (1610), kurnik, 2011.

9.Nfd2 d5 10.Qb3 c6 11.a4 Nbd7 12.Nc3 White intends b5 12...Nb6 13.a5 Nc8 14.b5 Ne7 15.Ba3 Re8 16.cd5 cd5 17.Be7 Qe7 18.Qa3 Qd7 19.Rab1 b6 20.a6 Rac8 21.Rfc1 Rc7 22.Na4 Rec8 23.Rc7 Rc7 24.Rc1 Ne8 25.Rc7 Qc7 26.Qc3 Qc3 27.Nc3 Nc7 28.f3 f5 29.Kf2 Bf8 30.fe4 fe4 31.Nce4 de4 32.Ne4 Bd7?? 33.Nc3 Bb4–+ 34.Na2 Ba5 35.e4 Bb5 36.Bb5 Nb5 37.Nc1? Nc7 38.Nb3 Bb4 39.Kf3 Kf7 40.Kf4 Ke6 41.d5 Nd5! 42.ed5 Kd5 43.Kg5? Kc4 44.Nc1 Kb5 45.Kh6? Bd2 46.Kh7 Bc1 47.Kg6 Ka6 48.h4 Kb5 49.g4 a5 50.g5 a4 51.h5 a3 52.Kf6 Bb2 53.Kf7 a2 54.g6 a1Q 55.h6 White prepares the advance g7 Kc4 56.g7–+ Bg7! 57.hg7 Qg7! 58.Kg7 b5 59.Kf6 b4 60.Ke5 b3 61.Kf5 b2 62.Ke5 b1Q 63.Kf4 Qe1 64.Kf5–+ Qe3 65.Kf6 Qe4 66.Kg5 Qf3 67.Kg6 Qf4 68.Kg7 Qf5 69.Kg8 Qd7 70.Kf8 Kd5 71.Kg8 Ke6 72.Kh8 Kf6 73.Kg8 ½–½. carocan (1735) – biklebowski (1760), kurnik, 2011.

9.Nfd2 h5 10.Nc3+/– d5 11.cd5 Bd5 12.Qc2 +/–.

9.Nfd2 h5 10.Nc3+/– d5 11.f3 +/–.

9.Nfd2 h5 10.Nc3+/- Bf5 11.f3 Qe8 (11...ef3 12.Bf3 (< 12.Nf3 Qe7=) 12...c6 13.Qb3+/-) 12.fe4 Ne4 13.Nde4 (13.Nd5 c6 14.Nc7 Nc3 15.Bc3 Qe3 16.Kh1 Qc3 17.Na8 Qd4+-) 13...Be4 14.Bf3 (better is 14.Qd2 Bc6 15.b5+/-) 14...c6?? (better is 14...Bf3 15.Qf3 f5+/-) 15.Be4 (15.Ne4 d5 16.cd5 cd5+-) 15...Qe6 (15...f5 16.Bd3 Qe3 17.Kh1+-) 16.Re1 (better is 16.d5 Qe7 17.Qf3+-) 16...Be5 (16...Qc4 17.Rf1+-) 17.c5 (better is 17.de5 de5 18.Qd3 f5+-) 17...Bg7 18.Qe2 (better is 18.d5 Qe7 19.dc6 Nc6 20.cd6+-) 18...Qd5 (18...d5 19.Bd3+-) 19.a3 (better is 19.Nd5 cd5 20.Bd5 dc5 21.Bb7 Nd7 22.Ba8 Ra8 23.bc5 Rb8+-) 19...Qa2 (19...Qe6+-) 20.Qf3 (20.Ra2 d5 21.Bd3 Nd7+-) 20...Bh6?? (20...Qb2 21.Rec1 Bh6 22.Ne2+/-) 21.Rf1 (21.Ra2 d5 22.Bc2 Bg7+-) 21...Re8?? (21...Qb2 22.Na4 Qb3 23.cd6 Qa4-+) 22.Qg4 (better is 22.Ra2 f5 23.cd6 Nd7+-) 22...Re5?? (22...Be3 23.Kh1 Qa1+- (23...Qb2? 24.Qf3 f5 25.Qe3 fe4 26.Qh6+-)) 23.Qh3 (better is 23.Qc8 Kg7 24.Ra2 Be3 25.Kh1+-) 23...f5 (23...Qb2 24.de5 Qc3 25.Qc8 Bf8 26.Qb7 Nd7 27.Qa8 Qe3 28.Rf2 Ne5 29.Bg6 Ng6 30.cd6 Ne5+-) 24.Qh5 (24...gh5 25.Ra2 (25.Na2?! Be3 26.Kh1 Re4+/-) 25...Be3 26.Kh1 Re4 27.Ne4 fe4 28.Re1+-; better is 24.Ra2 Re7 25.cd6+-) 1-0. Bulcourf,Carlos (2295) - Pereyra,Lorena, San Isidro VALLE, 1993.

9.Nfd2 h5 10.Nc3+/- Bf5 11.f3 Qe8 (11...ef3 12.Bf3 a5 13.Bb7+/-) 12.fe4 Ne4 13.Nde4 Be4 14.Bf3 (14.Qd2 Bc6+/-) 14...f5 15.Be4 fe4 16.Rf8 Bf8 17.Nd5 (better is 17.Qc2 Na6 18.Nd5+/- (18.Qe4?! Qe4 19.Ne4 Nb4+=; 18.Ne4?! Nb4 19.Nf6 Kf7+/-)) 17...Qf7? (better is 17...Qd8!?+/-) 18.Qc2+- c6 (18...a5 19.Rf1 Qg7 20.Nf6 Kh8 21.Nh5 gh5+-) 19.Rf1 Qe6 (19...cd5 20.Rf7 Kf7 21.cd5+-) 20.Nf6 (20.Nc7 Qe7 21.Na8 Na6+-) 20...Kg7 (20...Kh8 21.d5 cd5 22.Nh5 Kg8 23.Nf6 Kg7 24.Qf2+-) 21.d5 (21.Ne4?! d5 22.cd5 Qd5+-; 21.Qe4?! Qe4 22.Ne4 Na6 23.d5 Kh6+-) 21...Qe7 (21...cd5 22.Nd5 Kg8 23.Qc3+-) 22.Nd7 (better is 22.dc6 Nc6 23.Nd5 Kh6 24.Ne7 Be7 25.Qe4 a6+-) 22...Kg8 (22...Kh6 23.Rf8 Nd7 24.Ra8+-) 23.Rf8 Kh7 (23...Qf8 24.Nf8 Kf8 25.Qe4 Nd7 26.dc6 bc6 27.Qc6 Rd8 28.Qd6 Kf7+-) 24.Rh8 1-0. Bulcourf,Carlos (2295) - Pereyra,Lorena, San Isidoro op, 1993.

9.Ng5 Nc6+=.

9.Ng5 Bf5 10.g4 Bc8 11.Nh3 Qd7 12.d5 Ng4 13.Bg7 Kg7 14.Nf4 Ne5 15.Nd2 Qf5 16.h3 Re8 17.Qc2 Nd3 18.Bg4 Qg5 19.Kh2 f5 20.Be2 Nf4 21.ef4 Qf4 22.Kh1 Nd7 23.f3 e3 24.Nb3 Ne5 25.Qc3 Bd7 26.Nd4 Re7 27.Rae1 Rae8 28.Bd1 Qg3 29.Re3 Qh3 30.Kg1 Kg8 31.f4 Qh4 32.Rh3 Qf6 33.fe5 de5 34.Nf3 a5 35.b5 Qb6 36.c5 Qb5 37.d6 cd6 38.cd6 Qb6 39.Kg2 Qd6 40.Bb3 Be6 41.Be6 Qe6 42.Ng5 Qb6 43.Qf3 Kg7 44.Qc3 h6 45.Nf3 Qb4 46.Qb4 ab4 47.Rg3 Rd7 48.Rh1 Kf6 49.Nh4 g5 50.Nf3 Kg6 51.Ne5 Re5 52.Rb3 Rd2 53.Kf1 Re4 54.Rhh3 Ra2 55.Rhd3 Rc4 0-1. Tirza (1855) - ketapi (2255), Rated Blitz tournament, lichess.org, 2016.

7.0-0 Re8

8.a3 c6 9.Nc3 d5 10.cd5 cd5 11.Bb5 (11.d4 e4 12.Ne5 a6+=) 11...Bd7= 12.Bd7 Nbd7 13.Nb5 (13.d3 Rc8=) 13...e4 14.Nfd4 Nb6 (14...Ne5 15.Nb3=+) 15.Nb3 Nc4 16.Bd4 a6 17.Nc3 Rc8 18.Ra2 b6 19.Qa1 (19.Qe2 Qd6=) 19...Qd6 20.h3 Nh5 21.Bg7 Ng7 (worse 21...Kg7 22.Ne4 Qe5 23.Nc3+/-) 22.b5 a5 23.Na4 (23.Rd1 Qe5=) 23...Rc7 24.Nd4 Ne6 25.f4 f5 26.Nc6 Nc5 (26...Nd8 27.Nd4=+) 27.Nc5= Qc5 28.a4 Rd7 29.Rc1 Qd6 30.Qd4 h5 (30...Qe6 31.Rac2=) 31.Rac2 Rf7?? (better 31...Re6+=) 32.Rc4+- 1-0. chessajedrezz2020 (2505) - theken (2465), Rated blitz game, lichess.org, 2020. (=1.Nf3 A15: English Opening: 1...Nf6 1...Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.c4 d6 6.Be2 e5)

8.a4 b6 9.Nc3 Bb7 (9...e4 10.Ne1=+) 10.Re1 (10.a5 ba5 11.b5 c5=) 10...Nbd7 (10...e4 11.Ng5=+) 11.d4 c5 (11...a5 12.b5=) 12.dc5 (12.Nb5 Ne4 (worse 12...cb4 13.Nd6 Qc7 14.Ne8 Re8 15.a5+–) 13.Nd2 Ndf6 14.de5 de5 15.Ne4 Ne4=) 12...bc5 (12...dc5!? 13.b5 e4=+) 13.b5+= a6 (13...e4!? 14.Nd2 d5 15.cd5 Nd5= (worse 15...Bd5 16.Nd5 Nd5 17.Bg7 Kg7 18.Ne4+–)) 14.Qd6+– Re6 (14...e4!? 15.Nd2 Re6+–) 15.Qd2+– ab5 (15...e4 16.Ng5 Re5 17.h4+–) 16.ab5 Rd6?? (better 16...Ra1 17.Ra1 Re8+–) 17.Qd6 1–0. retiponziani (1980) – Hacko_11 (2005), ChessWorld.net, 2019.

8.Nc3 Nc6 9.b5 Ne7 10.d4 e4 (10...ed4 11.Nd4 a6 12.Bd3=) 11.Nd2+= Nf5 12.Qc2 e4 seems the pivot of the position 12...Qe7 13.Nd5 (13.g4 Nh4 14.Qd1 Qe6=) 13...Nd5 14.cd5 b6 (14...h6 15.Kh1+=) 15.Qc6 (15.Rfc1 Bb7+–) 15...Rb8+= 16.Rfc1 Attacks the backward pawn on c7 (16.Rac1 Bb7 17.Qc7 Bd5 18.Qe7 Re7+=) 16...Bb7 (better 16...Nd4!? 17.Bd4 Bd4 18.ed4 e3=+) 17.Qc7+– Bd5 18.Qe7 Re7 19.Ba3 Rd7 20.Bc4 (20.Bb4 Rbd8+=) 20...Bb7 (20...Bc4 21.Rc4 d5 22.Rc2=) 21.Rc2 (21.Bb4 Rc8 22.Bb3 Ra8+=) 21...Rc8 22.Rac1 Ne7 (22...d5 23.Bf1 Rc2 24.Rc2+=) 23.Kf1 (23.Be2 Rc2 24.Rc2 Nf5+=) 23...Bf8 (23...d5 24.Be2+–) 24.Ke2 (24.Bb4 Bg7+–) 24...d5+= 25.Be7 (25.Bb3 Rc2 26.Rc2 a6+=) 25...Be7= 26.Bb3 Rc2 27.Rc2 Bd6 (27...Kg7 28.f3=) 28.h3 ½–½. Kreuzer – Fellhauer, tt Verb'Liga, 1988.

8.Nc3 Bg4 9.a4 Nbd7 10.d4 ed4 11.Nd4 (worse is 11.Qd4 Ne4 12.Qd3 Bf5 13.Ne4 Bb2–+ (worse is 13...Re4 14.Bg7 Kg7 15.Nd4+/–; 13...Be4?! 14.Qd2=); 11.ed4?! c5 12.bc5 dc5=) 11...Be2 12.Nde2 Ne5 13.Qb3 Nd3 14.Ba3 (14.Rad1 Nb2 15.Qb2 Ng4=) 14...Ne5 (better is 14...Ng4!? 15.h3 Ngf2 16.Rf2 Nf2 17.Kf2 Qh4 18.g3 Qf6 19.Kg2 Re3–+) 15.Rad1= Qc8 16.f3 Qe6 17.Rd4 Nc6 18.Rd3 Ne5 19.Rd4 Nc6 20.Rd3 ½–½. Havlicek,P (1735) – Pychova,Nela (1640), Ricany Open A, 2011.

8.d3 h6 9.Nbd2 Kh7 10.Qc2 Bf5 11.Rfe1 Nc6 12.e4 Bg4 (12...Nb4? 13.Qb3 Nd3 14.Qd3+- (14.ef5?! Ne1 15.fg6 fg6 16.Re1 e4=)) 13.b5 Nb8 14.h3 Bf3 15.Nf3 (worse 15.gf3 Nh5-/+) 15...Nbd7 16.a4 Nc5 17.Ba3 Nfd7 18.a5 Rb8 19.Bb4 Ne6 (19...c6 20.Bd2+=) 20.Bc3 (20.a6 Nf4+/-) 20...Ndc5 21.Nd2 Qf6 22.Rf1 Nf4 23.Qd1 (23.Nf3 a6=) 23...Nfd3 (23...Ncd3 24.Bd3 Nd3 25.a6=+) 24.Bd3 (better 24.g3!?+=) 24...Nd3=+ 25.Qc2 (25.a6 b6=+) 25...Nf4-/+ 26.Kh2 h5 (26...a6 27.Nf3=+) 27.c5 (27.a6!?=+) 27...dc5-/+ 28.Nc4 Qe6 29.Rad1?? (better 29.Ne3-/+) 29...Qc4-+ 30.Qb2 (30.Rb1 Qd3 31.Rfc1 Rbd8-+) 30...Qe6 (better 30...Qe4 31.Rg1 Nd3-+) 31.g3 (31.Bd2-+) 31...Qh3 32.Kg1 Qg2 0-1. maestroangel (2550) - chessajedrezz2020 (2685), Casual bullet game, lichess.org, 2022.

8.d4 ed4 9.ed4 Bg4 10.h3 Bd7 11.b5 a6 12.a4 ab5 13.ab5 Ra1 14.Ba1 Bf5 15.Nc3 Ne4 16.Ne4 Be4 17.Re1 Nd7 18.Nd2 c6 19.Ne4 Re4 20.bc6 bc6 21.Bf3 Re1 22.Qe1 c5 23.dc5 Nc5 24.Bg7 Kg7 25.Bd5 Qf6 26.Qa5 h5 27.Qc7 h4 28.Kf1 Nd3 29.f3?? Nf4 30.Qd7?? Qa1 31.Kf2 Qb2 32.Ke3 Nd5 33.cd5–+ Qe5 34.Kf2 Qd5 35.Qg4 Qc5 36.Kf1 Qc1 37.Kf2 Qd2 38.Kg1 Qe1 39.Kh2 Qg3?? 40.Qg3= hg3 41.Kg3 Kf6 42.Kf4 g5 43.Ke4 Ke6 44.g3 f5 45.Kd4 Kf6 46.g4?? fg4 47.hg4= Ke6 48.Ke4?? d5–+ 49.Kd4 Kd6 50.Kc3 Ke5 51.Kd3 Kf4 52.Ke2 d4 53.Kf2 d3 54.Kg2 d2 55.Kh3 d1Q 56.Kg2 Qe2 57.Kh3 Qf3 58.Kh2 Qg3 59.Kh1 Qg4 60.Kh2 Kf3 61.Kh1 Qg2 0–1. nizinna – alek1, kurnik, 2011.

8.d4 Qe7 9.Nc3 Bg4 10.a3 a5 11.b5 Nbd7 12.h3 Bf3 13.Bf3 e4 14.Be2 Qe6 15.Rc1 Nb6 16.Na4 Na4+=.

8.Nc3 a5

9.a3 e4 10.Ne1 Nc6 11.b5 Ne5 12.Rc1 Be6 13.Na4 White intends c5 13...Nfd7 14.f4 ef3 15.Nf3 Bf5 16.Nd4 Bd3 17.c5 dc5 18.Nc5 Nc5 19.Rc5 Be2 20.Qe2 Qd6 21.Rc2 Rad8 22.Qf2 Rd7 23.Qg3 Qd5 24.Ba1 a4 25.Qe1 Nd3 26.Qg3 Nc5 27.Qf3 Qf3 28.Nf3 b6 29.Bg7 Kg7 30.d4 Nb3 (30...Nd3!?=) 31.Ne5+= Rde7 32.Rc6 Rf8 33.g4 f6 34.Nc4 Rff7 35.d5 Re4 36.h3 Na5 37.Na5 ba5 38.Kf2 Re5 39.Rd1 Rd7 40.d6 cd6 41.b6 Rb5 42.Rdd6 Rd6 43.Rd6 Kf7 44.Kf3 Rb3 45.Rd7 Ke6 46.Rh7 Rb6 47.Rg7 (47.h4 Rb3+=) 47...Rb3 (better is 47...g5!?+=) 48.Rg6+= Kf7 49.Rh6 Ra3 50.Rh5 Ra1 51.Ra5 a3 52.Kg3 a2 53.Kh4 Kg6 54.e4 Kf7 55.Ra6 Ke7 56.Kh5 Rh1 57.Ra2 Rh3 58.Kg6 Rg3 59.Ra7 Ke6 60.Ra6 Ke5 61.Rf6 Rg4 62.Kf7 Ke4 63.Ra6 ½–½. Diaz,Nah (2420) – Della Morte,P (2280), ITT, Vicente Lopez ARG, 2007. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8 8.Nc3)

9.b5 b6 10.Nd5 Nd5 11.cd5 Bg4 12.d4 e4 13.Nd2 Be2 14.Qe2 c5 15.Nc4 cd4 16.ed4 Qc8 17.Nd2 e3 18.fe3 Nd7 19.Qf3 Re7 20.Ne4 Qc2 21.Rab1 Qe4 22.Qe4 Re4 23.Rfe1 Rae8 24.Kf2 Nf6 25.Rbc1 Nd5 26.Rc6 Ne3 27.Rec1 Bd4 28.Bd4 Rd4 29.Rc8 Ng4 30.Kg3 Rc8 31.Rc8 Kg7 32.Rc6 Ne5 33.Rb6 Rd3 34.Kf2 Rd2 35.Kg3 Rb2 36.Rd6 Rb5 37.a4 Rb3 38.Kf2 Ra3 39.Rd5 Nc4 40.Rc5 Ra4 41.g3 Nb2 0–1. axtur777 – MrX911, lichess.org, 2019.

8.Nc3 c6

9.Qb3 Nbd7 10.d4 e4 11.Nd2 Qe7 12.Rae1 Nf8 13.f3 ef3 14.Bf3 (worse is 14.Nf3 Qe3 15.Kh1 Bg4=) 14...h5 15.b5 Bd7 16.Ba3 Bg4 17.Qb4 Bf3 18.Nf3 Rad8 19.Kh1 Qc7 20.Ng5 N8h7 21.Nh7 Kh7 22.Qb1 Rd7 ½–½. Aguila,Gustavo (2280) – Alvarez,Roberto Gabriel (2045), Villa Ballester op, 2004. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.0-0 Re8)

9.d4 e4 10.Nd2 d5 11.Rc1 Be6 12.a4 a6 13.a5 Bf8 14.Qb3 Bd6 15.Na4 Bg4 (15...Nbd7 16.h3=) 16.f3 (16.Bg4!? Ng4 17.g3+=) 16...ef3= 17.Bf3 (worse is 17.gf3 Bh3 18.Rf2 Nbd7+=) 17...Nbd7 18.h3 Bf5 (18...Bf3 19.Rf3 Bc7 20.Rcf1+=) 19.cd5+= cd5 20.Nc5 (20.Bd5 Nd5 21.Qd5 Nf6+=) 20...Nc5= 21.dc5 Be5 22.Be5 Re5 23.c6 bc6 24.Rc6 Qe7 25.Qc3 Re6 26.Re6 Qe6 27.Nb3 (27.g4 Be4 28.Bd1 Ne8+=) 27...Re8 (27...Rc8!? 28.Nc5 Qd6+=) 28.Nc5+= Qd6 29.Qd4 Ne4? (better is 29...Qc6+=) 30.Be4+– Be4 31.Qf6 Qc7 (31...Qe7 32.Qe7 (32.Na6?! Bd3+/–; 32.Qa6?! Rb8+–) 32...Re7 33.Rf6+–) 32.Na6 Qa7 33.Nc5 Rb8 34.h4 h5 (34...Bc2 35.Qe5 Bf5 36.Rf4+–) 35.Qe5 Bf5 36.Rf5 gf5 37.Nd7!! Rd8 (37...Qd7 38.Qg3 Double attack (38.Qb8 Deflection; 38.Qb8 Decoy)) 38.Nf6 (better is 38.Qg3!? Kh8 39.Nf6 f4 40.Qf4 Kg7+–) 38...Kf8 39.Nh5 d4?? (39...Qb8 40.Qd4 Qd6+–) 40.Qh8 Ke7 1–0. Cordova,Emilio (2625) – Goh,Wei Ming Kevin (2430), Tromso NOR, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8)

8.Nc3 Nbd7

9.a3 e4 10.Nd4 c5 11.bc5 dc5 12.Nb3 Qe7 13.Qc2 Ne5 14.Ne4 Ne4 15.Qe4 Bf5 16.Qf4 Bd3 17.Rfe1? (better is 17.Be5 Be5 18.Qf3-/+) 17...Be2–+ 18.Re2 Nd3 19.Qf3 Bb2 20.Ra2 Rad8 21.g3 b6 22.a4 Qe6 23.Qb7 (23.Rb2 Qc4 24.Rb1–+) 23...Qc4 24.Qc6 (24.Rb2 Nb2 25.Re1 Qb3 26.a5–+) 24...Qb3 25.Rb2 Qd1 26.Kg2 Qe2 27.Qf3 Ne1 28.Kh3 (28.Kg1 Qf3 29.Kf1 Nd3 30.Kg1 Qf2 31.Kh1 Qf1) 28...Qf3 29.Rb1 Qh5 0–1. Neumann,Frank – Cvak,Rudolf (1925), OP–2011–0-01729, 2011.

9.a4 a5 10.b5 Nf8 11.d4 e4 12.Nd2 h5 13.Qc2 Bf5 14.Rac1 N8h7 15.Nb3 Ng4 16.Bg4 hg4 17.Ne2 Ng5 18.Ng3 Kh7 19.Nd2 Rh8 20.f4 gf3 21.gf3 Bh3 22.Rf2 Bd7 23.Rff1 Bh3 24.Rf2 Bd7 25.Rff1 Bh3 ½–½. Nagel – Weyerstrass, 1981.

9.Qc2 b6 10.d4 e4 11.Nd2 Bb7 12.d5 Qe7 13.Nb5 Nf8 14.Rfd1 h5 15.Rac1 N8h7 16.g3 a6 17.Nc3 Bc8 18.Nb3 Bg4 19.Nd4 Ng5 20.Bg4 hg4 21.Kg2 Nf3 22.Nce2 Nh7 23.Rh1 Nhg5 24.c5 bc5 25.bc5 Qf8 26.cd6 cd6 27.Nc6 Be5 28.Nf4 Qh6 29.h3 gh3 30.Nh3 Bb2 31.Qb2 ½–½. Althoff,Guntram (2165) – Van der Weide,Karel (2465), Sportland NRW–Cup, 2000.

9.Qc2 Nf8 10.d4 e4 11.Nd2 Bf5 12.a4 h5 13.Rfc1 N8h7 14.b5 Ng5 15.Bf1 Ng4 16.Nd5 Nf3 17.Nf3 ef3 18.Qd2 Qh4 19.h3 fg2 20.Bg2 Nf6 21.Nc7 Bh3 22.f3 Bh6 23.Ra3 Bg2 24.Kg2 Ng4 25.Rh1 Ne3 26.Re3 Qg5 27.Kf2 Re3 28.Qd1 Rc8 29.Nd5 Re6 0–1. Ivlev – Ivanov,G, Pavlodar, 1975.

9.d3 e4 10.Ne4 Ne4 11.Bg7 Nf2 12.Rf2 Kg7 13.Qd2 Ne5 14.Nd4 c6 15.Raf1 Qg5 16.Rf4 Bh3 17.R1f2 Bg4 18.Bg4 Ng4 19.Rf7 Kg8 20.R2f4 Re3 21.Nf3 Qh6 22.Rg4 Rae8 23.Rgf4 g5 24.R4f6 Qh5 25.Rf8 Kg7 26.R6f7 Kg6 27.Qc3 1–0. Benko – Vukcevic, USA 1969.

9.d3 Nf8 10.Rb1 c6 11.b5 c5 12.Nd2 h5 13.a4 Be6 14.Qc2 Rc8 15.Bf3 d5 16.cd5 Nd5 17.Nd5 Bd5 18.Bd5 Qd5 19.Nc4 Rcd8 20.Rfd1 Nh7 21.Rbc1 Ng5 22.b6 a6 23.Na5 Rc8 24.Qc4 Qd7 25.h4 Ne6 26.Qe4 Nd8 27.Ba3 Bf8 28.Rd2 f5 29.Qc4 Ne6 30.Rdc2 Kh7 31.Nb3 Rc6 32.a5 Rd8 33.Bb2 Bg7 34.Nd2 Qd3 35.Qd3 ½–½. Speelman,J (2600) – McShane,L (2510), Politiken Cup (Copenhagen DEN) (9), 2001.

9.d3 Nf8 10.Qc2 h5 11.c5 d5 12.Rfc1 c6 13.Rab1 N6h7 14.b5 g5 15.bc6 bc6 16.Qa4 Re6 17.d4 e4 18.Ne5 Qc7 19.Bh5 Be5 20.de5 Rh6 21.Qd1 Be6 22.Be2 Ng6 23.Qd4 f6 24.f3 ef3 25.gf3 fe5 26.Qd2 Rf8 27.Rf1 e4 28.Rf2 ef3 29.Bf3 Ne5 30.Rbf1 Nc4 31.Qe2 Nb2 32.Qb2 Qe5 33.Qd2 g4 34.Bh1 Rf2 35.Rf2 Ng5 36.Bg2 Qh2 37.Kf1 g3 38.e4 gf2 39.Qg5 Kf7 (time, 0–1). Benko – Liberzon, 1974.

9.d4 e4 10.Nd2 Nf8 11.a4 h5 12.a5 a6 13.Qc2 Can e4 get defended? 13...Bf5 14.Rfc1 N8h7 15.Qd1 h4 16.h3 Qd7 17.Nf1 Ng5 18.Nh2 Kh7 19.Rab1 Bh6 20.Nd5 Nd5 21.cd5 Rec8 22.Bc3 b5 23.ab6 cb6 24.b5 a5 25.Bb2 Rc1 26.Rc1 Qd8 27.Bg4 Bg4 28.Qg4 (worse 28.Ng4 Bg7+=; 28.hg4?! h3=) 28...f5 29.Qe2 Kg8 30.Rc6 Nh7 31.Nf1 Nf6 32.Nd2 Bf8 (32...Nd5?? 33.Qc4 Bf8 34.Qd5 Kh7 35.Nc4+-) 33.Ba3 Rb8 (33...Kg7 34.Nc4+/-) 34.Nc4 Ne8 35.f3 ef3 36.Qf3 Rb7 37.Qf4 Kh7 38.Nd6 Nd6 39.Bd6 (39.Rd6? Bd6 40.Bd6 Rd7-+) 39...Bh6 40.Qe5 Rd7 41.Kf2 f4 42.ef4 Bg7 43.Qe6 Bd4 44.Kf3 Rg7 45.Rc8 Qd7 46.Qd7 Rd7 47.Ke4 Bf6 (47...Rd6 48.Kd4 Rd7+-) 48.Be5 (48.Be5 Kg7 49.d6+-) 1-0. Guijarro,D Anton (2665) - Shyam,N (2465), 28th Abu Dhabi Masters (2), 2022. (=1.Nf3 E61: King's Indian: Early deviations for White, including Smyslov System 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5)

9.e4 c6 10.Ne1 (10.Qc2 Nb6=) 10...d5 11.cd5 (11.ed5 cd5 12.Nd5 Nd5 13.cd5 Nb6=+) 11...cd5 12.d3 (12.Nd5 Nd5 (< 12...Ne4 13.Qc2 Ng5 14.Nc7+-) 13.ed5 Nb6=+) 12...Nf8 (12...d4 13.Nb1=+) 13.ed5 (13.Rc1 Bh6 14.Rc2 d4=+) 13...Nd5 14.Nd5 Qd5 15.Nc2 (15.f4 ef4 16.Bg7 Kg7 17.Rf4 Qd6=+) 15...Ne6 (15...Qd6 16.Bf3=+) 16.Bf3 Qd8 (16...Qd6 17.Re1=) 17.Re1= Nf4 (17...e4 18.Bg7 ef3 19.Bb2 fg2 A) 20.Kg2? Nf4 21.Kh1 Qd5 22.Re4 Bg4-+ (22...Re4?! 23.de4 Qe4 24.f3=+); B) 20.Qf3=) 18.d4 Bf5 19.Ne3 (19.Bb7!? Nd3 20.Ba8 Nb2 21.Qb1=) 19...Nd3 20.Nf5 Nb2 (< 20...Ne1 21.Bb7 (< 21.Qe1 ed4 22.Qd2 gf5-/+) 21...gf5 22.Ba8 (< 22.Qe1 ed4 23.Qd2 Rb8-/+) 22...Qa8 23.Qe1 ed4 24.Qf1=) 21.Ng7 (21.Qe2 A) < 21...ed4 22.Qb2 gf5 A1) 23.Bb7? d3 24.Qd2 Re2 25.Re2 de2 (25...Ba1? 26.Re3 Rb8 27.Rd3+-) 26.Qe2 Ba1 27.Ba8 Qa8-+; A2) 23.Re8 Qe8 24.Qd2= (24.Bb7? Rb8-+); B) 21...gf5 22.Qb2 e4-/+) 21...Nd1 (21...Kg7 22.Qb3 e4 23.Re4 Re4 24.Be4 Qd4 25.Qf3+=) 22.Ne8 Nf2! (22...Qe8 23.Rad1 Qa4 24.de5 Qb4 25.e6 fe6 26.Re6-/+) 23.Re5 (23.Kf2 Qd4) 23...Qd4 24.Nf6 Kg7 (25.Kf1 Nd3-+) 0-1. Conner,T - Shibut,Macon, Washington, DC USA, 1993.

8.Nc3 e4

9.Nd4 c5 10.bc5 dc5 11.Nb3 Na6 12.a3 (12.f3 Bf5=) 12...Bf5 13.Qc2 (13.f3 ef3 14.Bf3 Qd7=) 13...Qd6=+ 14.Nb5 Qb6 (14...Qd7 15.Bc3=) 15.Bc3 h6 (15...Qe6 16.h3=) 16.Rfd1 Qe6 17.d3 ed3 18.Bd3 Bg4 (18...Bd3 19.Rd3 Red8 20.Rad1 Rd3 21.Qd3+=) 19.Re1 (19.Rd2 Qe7+=) 19...Qe7 (19...Qd7 20.f3 Be6 21.e4+=) 20.Rab1 Nc7 (20...Reb8 21.e4+=) 21.Nc7 (21.Bf6 Bf6 22.Bg6 Nb5 23.Bh7 Kg7 24.cb5 Rac8+–) 21...Qc7+= 22.Bf6 (22.Qb2!? Nh5 23.h3+=) 22...Bf6= 23.Nd2 Rad8 24.Ne4 (24.h3 Be6=) 24...Bg7 (24...Be5 25.f4 Bg7 26.Nf2=+) 25.Ng3 (25.Nc3 Be6=+) 25...h5 (25...Qa5 26.h3 Bc8 27.Be4=+) 26.h3= Bc8 (26...Be6 27.Ne2=) 27.Rbd1 (27.Red1 Qa5=) 27...h4 28.Ne4 (28.Ne2 Qa5=+) 28...Qa5 29.Ng5 (29.Qb3 Bd7 30.Bc2 Bc6=+) 29...f5 (29...Qa3!? 30.Rf1 Qb2-/+) 30.Nf3= Qa3 31.Nh4 Qa6 (31...Bd7 32.Qb1 Qa6 33.Bc2=+) 32.Nf3 (32.Be2 Qf6 33.Nf3 b6=) 32...Bd7=+ 33.Rb1 Bc6 34.Nh4 (34.Nd2 b6=+) 34...Rd6 35.Red1 (better 35.Qe2!?-/+) 35...Ba4–+ 36.Qe2 Bd1 37.Rd1 Red8 38.g4 (38.Nf3 Qa4 39.Nh4 Qa3 40.Ng6 Rd3–+ (40...Rg6?! 41.Bf5 Rd1 42.Qd1–+)) 38...Qa3 39.Bc2 (39.Ng6 Rd3 40.Ne7 Kf8 41.Rd3 Qd3 42.Qd3 Rd3 43.Nf5–+) 39...Rd1 40.Bd1 Qa1 (40...Qa1 41.Ng6 Qd1 42.Qd1 Rd1 43.Kg2 fg4 44.hg4 a5 45.Ne7 Kf7–+) 0–1. tsodikovich (1850) – kennys (2050), gameknot.com, 2018.

9.Nd4 c5 10.bc5 dc5 11.Nb3 b6 12.d4 cd4 13.ed4 Nc6 14.Re1 Bf5 15.Qd2 Nb4 (15...Rc8 16.Rad1+=) 16.Rac1 (16.Ne4 Ne4 17.Qb4=) 16...e3 17.fe3 Bh6 18.Bf1 Ng4 The pressure on the backward pawn e3 grows 19.Nd1 Qd6 (19...Na2 20.Ra1 Qd6 21.g3=) 20.g3 Na2 21.Ra1 Nb4 (21...Qb4 22.Ra2 Qb3 23.Ra3=) 22.Ba3+= a5 23.Bg2 (23.Bb4 ab4 24.Ra8 Ra8=) 23...Rac8= 24.Rc1 Qe7 Increases the pressure on the backward pawn 25.Rc3 Qd7 (25...Nf6 26.Nf2=) 26.Bf3+= Qa4 (26...Nc6 27.Qe2+=) 27.Qb2= Nc2! Black gets deadly initiative 28.Bg4 (28.Qc2 Bc2) 28...Ne1 29.Bf5 gf5 30.Qc1 (30.Qe2!? Qa3 31.Qe1-/+) 30...Nf3 (30...Bg7 31.Nd2 Qc6 32.d5–+) 31.Kg2 Ng5 32.Nf2 (better is 32.Nd2!?–+) 32...Ne4 33.Ne4 Re4 34.h3 (34.c5–+) 34...Rce8 35.Qc2 Re3 (35...Re3 36.Nc1 Qc2 37.Rc2 Ra3–+; 35...Qa3 36.Nc5 Qc3 37.Qc3 bc5 38.dc5 Re3 39.Qf6 Re2 40.Kf1–+) 0–1. Schulz,Hans_Juergen – Woelfelschneider,Peter, TT–11 ETC, 2003.

9.Ne1 Nc6 10.b5 Ne5 11.f3 ef3 (11...Be6 12.Qb3 d5 13.cd5 Nd5 A) 14.fe4? Ne3 15.Nd5 Nf1 (15...Bd5?! 16.Qe3 Be4 17.Qe4-/+) 16.Bf1 c6–+; B) worse 14.Ne4 Nf4 15.Qd1 Ne2 16.Qe2 Bc4=; C) 14.Nd5 Bd5 15.Qc2=) 12.Nf3 Nfg4 (12...a6 13.a4=) 13.Ne5+= Ne5 14.d4 Nd7 15.Qd3 Nb6 16.Bf3 (16.e4 Be6 17.d5 Bd7+=) 16...Bf5 (16...Be6 A) worse 17.Bb7 Bc4 18.Qd1 Bf1 19.Ba8 Bb5-/+ (worse 19...Na8 20.Qf1 Re3 21.Nd5=+; 19...Qa8?! 20.Qf1 Re3 21.Nd1–+; 19...Re3?! 20.Qf1 Bd4 21.Nd5 Re1 22.Bd4 Rf1 23.Kf1 Qa8 24.Nf6 Kg7 25.Rc1–+); B) 17.d5 Bd7 18.e4=) 17.e4 Be6 18.Nd5 Na4 (18...Nd5 19.cd5 Bd7 20.Rae1+=) 19.Ba3 c6 (19...a6 20.Nf4+=) 20.bc6 bc6 21.Nf4 Qb6 (21...Rb8 22.Ne6 fe6+=) 22.Ne2 (22.Rad1 Rab8+=) 22...Rad8 (22...Qa6 23.Rac1=) 23.Rac1 c5 24.Rfd1 (24.d5 Bd7=) 24...Qc7 (24...cd4 25.Nd4 Rb8 26.Kh1=+) 25.Kh1 (25.d5 Bd7=) 25...Qe7 (25...Rb8 26.Rc2=+) 26.Qe3 (26.e5 de5 27.Qc2 Bd7 28.dc5 Nc5=+) 26...Rc8 (26...Nb6 27.Qd3=+) 27.e5 (27.Qb3 Bd7=+) 27...de5 28.dc5 (better 28.d5 Bd7 29.d6-/+) 28...Nc5 (28...Qh4 29.Rb1 e4 (29...Qc4?! 30.Bb7-/+; 29...Bc4 30.Rb4 Nc5 31.Rc4 Qc4 32.Rc1–+) 30.Qe4 Qe4 31.Be4 Bg4–+ (worse 31...Nc5 32.Bc5 Rc5 33.Ng3-/+)) 29.Nc3+= Qh4 (29...f5 30.Na4!? Bf8 31.Nc5 Rc5 32.Bc6+=) 30.Bc5+– Bh6 31.Qf2?? (better 31.Qe4 Qe4 32.Ne4 (32.Be4? Bc1 33.Bd6 Rc4 34.Rc1 Rec8–+) 32...Bc1 33.Nf6 Kh8 34.Rc1 (34.Ne8?! Bg5=) 34...Rc5 35.Ne8 Rc4 36.Rc4 Bc4 37.a4+–) 31...Qf2-/+ 32.Bf2 Bc1 33.Rc1 Rc4 (33...Bc4?! 34.Ba7 f5 35.Nd5=) 34.Ne2? (better 34.Kg1-/+) 34...e4–+ 35.Rc4 Bc4 36.Be4 Re4 37.Nc3 Re7 38.h4 (38.Kg1 f5–+) 38...Ba2 (38...Rd7 39.Bc5–+) 39.Na2 Re2 40.Ba7 Ra2 41.Bd4 (41.Bc5 Ra4 42.Bf2 f5–+) 41...h5 (41...f5 42.Kh2–+) 42.Kh2 Kf8 43.Bf6 Ke8 44.Bg5 (44.Kg3 Kd7–+) 44...Kd7 45.Bf6 (45.Kg3 Ke6–+) 45...Kd6 (45...Ke6 46.Bg7–+) 46.Bg5 (46.Kg3 Ra4–+) 46...Ke5 47.Kh3 Ra3 (47...Ra3 48.Kh2 f6–+) 0–1. Hellmayr,Alois (2300) – Tibensky,Robert (2425), Siemens IMT Linz, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8 8.Nc3 e4)

8.d4 e4

9.Nfd2 d5 10.cd5 Nbd7 11.Nc3 Nb6 12.Qb3 a6 13.b5 a5 14.a4 Bf5 15.Rfc1 Qd7 16.Nc4 Nfd5 17.Nd5 Nd5 18.Ne5 Qd8 19.Rc5 Be6 20.Bc4 Nb6 21.d5 Bf5 22.d6 Nc4 23.Nf7 Kf7 24.Qc4 Kf8 25.Bg7 Kg7 26.Rc7 Bd7 27.Rb7 Rc8 28.Qd4 Kh6 29.b6 Rc6 30.Rc7 Re6 31.Rd1 Qe8 32.b7 Red6 33.Qd6 Rd6 34.Rd6 Qe5 35.Rcd7 Qc3 36.Rd1 Qb3 37.h3 1–0. Katalymov – Zhukhovitsky, Stalinabad 1958.

9.Nfd2 h5 10.Nc3 Bf5 11.b5 Nbd7 12.a4 Nf8 13.h3 Qd7 14.Nb3 White prepares d5 14...N8h7 15.a5 Bh6 16.a6 b6 17.d5 Bh3 18.Kh2 Ng5 19.Rh1 Re5? (19...Bg4 20.Kg1=) 20.Kg1 (20.Nb1 Rf5 21.gh3 Nh3 22.Nd4 Rf2 23.Kg3 h4 24.Kh4–+) 20...Bg4+= 21.Bg4 Ng4 1–0. Valente,H (1845) – Pereira,Aug (2220), 1st Marcel Duchamp, 2011.

9.Nfd2 h5 10.Nc3 Bg4 11.a4 Nbd7 12.Qc2 Increases the pressure on e4 12...Be2 13.Ne2 Qe7 14.a5 c6 15.Nc3 Rac8 16.Qb3 Qe6 17.a6 Rb8 18.ab7 Rb7 19.Ra6 Nb8 20.Ra5 a6 21.Qa4 Rc8 22.Ne2 Qe7 23.Ba3 Qe8 24.Rc1 Nfd7 25.Qc2 f5 26.Nc3 Bf6 27.Qb3 Kh7 28.Bb2 Bd8 29.Raa1 Bf6 30.Ra5 Bd8 31.Raa1 ½–½. Polugaevsky,Lev – Hort,Vlastimil, Sarajevo, 1964. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8)

7.0-0 Ne8

8.a4 f5 9.b5 Nf6 10.h3 Be6 11.Nc3 Nbd7 12.Nh2 (12.Ng5 Qe7+=) 12...c6 (12...e4 13.a5+=) 13.Bf3 (13.Nf3 Qe7=) 13...d5 (13...Nb6 14.bc6 bc6 15.Bc6-/+) 14.bc6 bc6 15.cd5 cd5 16.Nb5 Qb6 17.Rb1 a6 18.Nc3 Qd6 19.Qc1 Rfc8 20.Ba3 Qc6 21.Qd1 e4 22.Be2 Nc5 The isolani on a4 becomes a target 23.Bc5 Qc5 24.Re1 d4 25.Na2?? d3 26.Bf1 Ba2 27.Rc1 Qe5 0–1. alfons78 – gordonon12, kurnik, 2012.

8.Nc3 c5 9.Qb3+=.

8.c5 e4 9.Nd4 d5 10.f4 ef3 (10...a5 11.b5=) 11.Bf3+= c6 12.a4 Nd7 13.Qc2 Ne5 14.b5 Qc7 15.d3 Bg4 16.Nd2 Nf6 17.Rae1 Rfe8 18.e4 Rad8 19.ed5 Nf3 20.gf3 (20.Rf3?? Re1 21.Kf2 Bf3–+) 20...Bh3 21.d6 Qd7 22.Re8 Re8 23.Rd1 Re5 24.Kf2 (better is 24.Ne4 Nd5 25.Qd2+=) 24...Ng4-/+ 25.fg4 Qg4 26.Ne4 Bh6?? (better is 26...Re4 27.de4 Bd4 28.Bd4 Qg2 29.Ke3 Qc2–+) 27.Nf6+– (27.Nf6 Kf8 28.Ng4 Bg4 29.Re1+–) 1–0. Bosma,Achim – Wakker,Peter, NED–ch op Velp, 1977. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Ne8)

8.d4 a5 9.b5 Be6 10.Nc3 Nd7 11.Re1 Nb6 12.c5 dc5 13.dc5 Nd7 14.Ne4 Qe7 15.c6 bc6 16.bc6 Nb6 17.Qc2 Bd5 18.Ned2 f5=.

8.d4 f5 9.de5+/– Nc6 10.b5 Ne7 11.Qd4 c5 12.Qh4 de5 13.Be5 Be5 14.Ne5 Qc7 15.Qf4 a6 16.a4 ab5 17.cb5 Nd5 18.Bc4 Be6 19.Bd5 Bd5 20.Nc3 Bf7 21.Nf7 (21.a5!?+–) 21...Qf4+/– 22.ef4 Kf7 23.Rfe1 Nc7 24.Re5 b6 25.Rae1 Rfe8 26.Kf1 Rad8 27.Re8 Re8 28.Re8 Ke8 29.Ke2 Kd7 30.f3 Kd6 31.Kd3 Nd5 32.Nd5 Kd5 33.h3 h5 34.g4 h4 35.Kc3 c4 36.Kd2 Kc5 37.Kc3 Kd5 38.Kd2 Kc5 39.Kc3 ½–½. Verhaeren,Gertjan – Howes,Tony, IECG, 2004.

8.Nc3 f5

9.Qb3 Nc6 10.a4 e4 11.Ne1 Kh8 12.d4 ed3 13.Nd3 Ne5 14.Nf4 c6 15.Rad1 Qf6 16.Rd2 Qh4 17.Nd1 Bd7 18.c5 d5 19.Nd3 Nc4 20.Bg7 Ng7 21.Rc2 Rae8 22.Ne1 Ne5= 23.Nf3 Nf3 24.Bf3 g5 25.Rd2 g4 26.Rd4?? Rf6?? 27.g3= Qh5 28.Bg2 Rh6-/+ 29.h4? gh3–+ 30.Bf3 h2 31.Kg2 h1Q 32.Rh1 Qh1 0–1. orangutanb4 (2040) – dors (1685), kurnik, 2011.

9.d4!? a5 10.ba5+=.

9.g3 e4 10.Nd4 =+.

9.g3 Be6 10.d4 Nd7 11.b5 e4 12.Ne1 c6 13.f3 Nef6 14.fe4 fe4 15.Ng2 Bf7 16.Rc1 Qe7 17.Ba3 Rfc8 18.bc6 bc6 19.Rb1 Nf8 20.h4 h6 21.Qc2 N8h7 22.Nf4 g5 23.hg5+= hg5 24.Ng2 Bg6 25.Qd1 Qd7 26.Kh2 Rf8 27.d5 c5= 28.Qa4 Qe7 29.Nb5 a6 30.Nc3 Nh5 31.Bh5 Bh5 32.Qc2 Bf3 33.Bb2-/+ Nf6 34.Rh1 Kf7 35.Nd1 Rh8-/+ 36.Kg1 Rh1 37.Kh1 Rh8 38.Kg1 Rh3 39.Bf6 Bf6 40.Qb3?? Rg3 41.Qb8 Rg2 42.Kf1 Qd8 43.Qa7 Kg6 44.Rb8 Qa5 45.Rg8-/+ Kh6 (46.Rg5 Qa2 47.Rh5 Bh5–+) 0–1. Bulcourf,Carlos (2185) – Quinteros,Miguel Angel (2505), Buenos Aires Clarin op, 1995.

8.d4 ed4

9.Bd4 Nc6 10.Bg7 Kg7+=.

9.Nd4 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Nf6 13.Nd2 Re8 14.Bb2 Na6 15.Qb3 c5 16.bc5 dc5 17.N4f3 Qe7 18.Rd1 Bf5=.

9.Nd4 Nd7 10.Nc3 Nef6 11.a3 Re8 12.Qc2 Ne5 13.Rad1 Bg4 14.c5 Be2 15.Nde2 Nc4 16.Nd4 d5 17.c6 Rb8 18.cb7 Rb7=.

9.Nd4 Nd7 10.Nc3 Nef6 11.Qc2 Re8 12.Rfd1 Ne5 13.Nd5 c6 14.Nf4 Bg4 15.c5 d5 16.Rac1 Be2 17.Qe2 Qc7 18.Nd3 Nc4=.

9.Nd4 Nd7 10.Nc3 Nef6 11.Qc2 Re8 12.Rfd1 Ne5 13.Nd5 c6 14.Nf4 Bg4 15.c5 d5 16.Bg4 Nfg4 17.h3 Nf6 18.a4 Nc4=.

9.Nd4 Nd7 10.Nc3 Nef6 11.Qc2 Re8 12.Rfd1 Ne5 13.Nd5 c6 14.Nf6 Qf6 15.c5 Ng4 16.Bg4 Bg4 17.Rd2 dc5 18.Qc5 Qh4=.

8.d4 e4

9.Nfd2 f5 10.Qb3 Kh8 11.Nc3 f4? (better is 11...Qg5!?+=) 12.Nde4+– fe3 13.fe3 Nf6 14.Nf6 Bf6 15.Ne4 Bg7 16.Rf8 Qf8 17.Rf1 Qe7 18.Bd3 Bf5 19.Nf2 Qe3 20.Bf5 Qb3 21.ab3 gf5 22.Nh3 Nc6 23.Rf5 Nb4 24.Rf7 Nd3 25.Bc3 c5 26.Rb7 cd4 27.Bd2 a5 28.Rd7?? Nc5-/+ 29.b4?? Nb3 30.Bf4 ab4 31.Bd6= d3 32.Bb4 Bd4 33.Rd4 Nd4 34.Bc3 Rd8 35.Nf2 Kg8 36.Kf1 Ne2 37.c5?? Nc3–+ 38.Ke1 d2 39.Kf1 d1Q 40.Nd1–+ Nd1 41.Ke2 Rc8 (41...Rc8 42.Kd1 Rc5–+) 0–1. nizinna – tuniu51 (1650), kurnik, 2011.

9.Nfd2 f5 10.Nc3 c6 11.Qb3 Kh8 12.a4 f4? (better is 12...Qg5!?+=) 13.Nce4+– Bf5 14.ef4 Be4 (14...d5 15.Ng3+–) 15.Ne4 Rf4 16.Bd3 Nf6 17.Nf6 Qf6 18.g3 Rg4? 19.f4 Nd7 20.Be2 h6 21.Bg4 (21.Bg4 Qf7 22.f5+–) 1–0. carocan (1755) – epilogue (1815), kurnik, 2012.

9.Nfd2 f5 10.Nc3 Nf6 11.Rc1 Be6 12.Nb3 Bf7 13.Qc2 Nc6 14.b5 Ne7 15.d5 Nd7 16.Nd4 Nc5 17.Na4 b6 18.f4 a6 19.Nc5 dc5 20.Nc6 Nc6 21.bc6 Qe7 22.Rcd1 Rfd8 23.a4 a5 24.g4 Rd6 25.Kh1 Bb2 26.Qb2 Qf6 27.Qc2 Kf8 28.Rg1 Ke7 29.Rg3 Rg8 30.Rdg1 Rdd8 31.Bf1 Rde8 32.Bh3 Kd6 33.Qc1 Ke7 34.R1g2 Kd6 35.Qg1 Rgf8 36.gf5+/– gf5 37.Rg5 Qh6 38.Bf5+– Bh5 39.Bg4 Bg6? 40.Bd7 Bh5 41.Be8 Re8 42.Rg7 Re7 43.Qa1 Bf3 44.Qe5! (44.Qe5 Re5 45.Rd7) 1–0. Molner,M (2500) – Schmakel,Sam A (2230), Middleton USA, 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Ne8 8.d4 e4)

9.Nfd2 Nf6 10.Nc3 Re8 11.d5 h5 12.Qc2 Bf5 13.Nb3 a6 14.Rfd1 Qc8 15.c5 Nbd7 16.a4 Ne5 17.Nd4 Bg4 18.Rac1 Nd3 19.Bd3 Bd1 20.Qd1 (worse is 20.Nd1 ed3 21.Qd3 dc5 22.Rc5 Bf8-/+) 20...ed3 21.cd6 Qd7 22.dc7 Rac8 23.Qd3 Rc7 24.e4 (better is 24.Nb3+=) 24...Ne4!-/+ 25.Ne4 (25.Nde2 Nc3 26.Nc3–+) 25...Rc1–+ 26.Bc1 Qd5 27.f3 Qd4 28.Qd4 Bd4 29.Kf1 Rc8 30.Bd2 Rc6 31.Ke2 f5 32.Nf2 Rc2 33.Nd1 Ra2 34.Kd3 Kf7 35.a5 Ke6 36.Ne3 Be3 37.Ke3 Kd5 38.h3 (38.Be1 Rg2 39.b5 Rh2 40.ba6 ba6–+) 38...Kc4 39.g4 hg4 40.hg4 fg4 41.fg4 Rd2! 0–1. Farto Orozco,David (1785) – Berbatov,Kiprian (2250), Cambados op, 2008.

8.d4 Be6

9.Nc3 Nd7 10.d5 Bg4 11.h3 Bf3 12.Bf3 f5 13.e4 a5 14.a3 Qh4 15.Qd3 fe4 16.Qe4 Qe4 17.Ne4 Nb6 18.Rfc1 Nf6+=.

9.Nbd2 ed4 10.Nd4 c5 11.Ne6 fe6 12.Bg7 Kg7 13.bc5 dc5 14.Qb3 Qc7 15.Rab1 Rf7 16.Nf3 Re7 17.Ng5 h6 18.Ne4 b6 +/–.

8.d4 Qe7

9.a3 a5 10.Nc3 Nf6 11.Qc2 Re8 12.Rfe1 Bg4 13.Ne4 ed4 14.Nf6 Bf6 15.Nd4 Be2 16.Qe2 Nd7 17.Red1 Nb6 18.Rac1 ab4=.

9.Nc3 Nf6 10.Qa4 Nbd7 11.Rad1 Nb6 12.Qa5 ed4 13.ed4 Bg4 14.Rde1 Qd8 15.Nd2 Be2 16.Ne2 Re8 17.Nc3 Re1 18.Re1 Ng4=.

7.0-0 Bf5

8.a4 Nc6 9.b5 Ne7 10.d4 e4 11.Nfd2 c5 12.d5 a6 13.f3 ef3 14.Bf3 ab5 15.ab5 Ra1 16.Ba1 Qa5 17.Bc3 Qd8 18.e4 Bd7 19.Qe1 b6 20.Nb3 Bg4 21.N1d2 Bf3 22.Nf3 Nc8 23.Nbd2 Bh6 24.e5 de5 25.Ne5 Bd2 26.Bd2 Re8 27.Bf4 Ng4 28.h3 Ne5 29.Be5 f6 30.Bf6 Re1 31.Bd8 Rf1 32.Kf1 Nd6 33.Bb6 Nc4 34.Bc5 Kf7 35.b6 Ke8 36.b7 1–0. axtur777 – Dragon808, lichess.org, 2019.

8.Nc3 Nbd7 (8...a5 A) 9.a3 Nbd7 (9...ab4 10.ab4 Ra1 11.Ba1 Na6 12.b5 Nc5 13.d4 ed4 14.Nd4 Be6 15.Ne6 fe6= 0.09) 10.d4 Re8 11.Nh4 ed4 12.ed4 Be6 13.Nf3 d5 14.c5 Ne4 15.Re1 Nc3= –0.03; B) 9.b5 Qe7 (9...Nbd7 10.d4 c5 11.d5 Nb6 12.Nd2 a4 13.e4 Bd7 14.Qc2 Bh6 15.Bc1 Bf4+= 0.41) 10.d4 Re8 11.a3 c5 12.d5 e4 13.Nd2 Rf8 14.Ra2 h6 15.Qa1 Nbd7+= 0.37) 9.d3 (9.d4 c6 (9...a5 10.b5 c5 11.d5 e4 12.Ne1 Ne5 13.h3 Qe7 14.Qc2 Rfe8 15.Rb1 Rab8= 0.25) 10.a3 Re8 11.de5 de5 12.Nd2 e4 13.Qc2 Qe7 14.Rfd1 a5 15.b5 Red8= 0.19; 9.a3 a5 (9...c5 10.d4 cd4 11.ed4 Re8 12.Nb5 Ne4 13.Bd3 Ndf6 14.de5 de5 15.Be5 Nc3+= 0.37) 10.d4 Re8 11.Nh4 ed4 12.ed4 Be6 13.Nf3 d5 14.c5 ab4 15.ab4 Ra1= 0.00) 9...h5 (9...a5 10.b5= Nc5 11.d4 ed4 12.Nd4 Be6 13.Qc2 Qe7 14.Rad1 Rae8 15.Na4 Na4= 0.25; 9...h6 10.e4 Be6 11.a3 a5 12.d4 ed4 13.Nd4 Ne5 14.Qb3 Qd7 15.ba5 Rfb8= 0.25) 10.h3 (10.e4 Be6+= 11.Ng5 c6 12.Ne6 fe6 13.Qd2 Kh7 14.Qg5 Bh6 15.Qg3 Bf4+= 0.41) 10...e4 (10...a5 11.b5 (11.a3+= Qe7 12.e4 Be6 13.Qd2 ab4 14.ab4 c6 15.d4 ed4+= 0.34) 11...Nc5 12.e4 Be6 13.Bc1 Nfd7 14.Ng5 f5 15.Ne6 Ne6+= 0.59) 11.Ne4 Ne4 (11...Be4 12.de4 Re8 13.Nd2 a5 14.a3 Ne4 15.Bg7 Nd2+= 0.69) 12.Bg7 Kg7 13.de4 Be4 14.Qd4 (14.Nd2 Bf5 15.a3 Qh4+= 0.56) 14...Nf6 15.Nd2 (15.Rad1 Qe7+= 0.47) 15...Qe7 16.a3 Bf5? (better is 16...Rfe8+=) 17.g4+– hg4 (17...c5 18.Qb2 Bc8 19.g5 Bh3 20.Rfd1 cb4 21.Qf6 Qf6 22.gf6 Kf6 23.Ne4 Ke7 24.ab4+–) 18.hg4 Bg4 19.Bg4 Rh8 (19...c5 20.Qc3+–) 20.Bf3 Kg8 (20...c6 21.Rfd1 Qe5 22.Nb3+–) 21.Kg2 (21.b5 c6+–) 21...c5 22.Qf4 g5 (22...Kg7 23.Rh1+–) 23.Qg3 g4 (23...Kf8 24.Rh1 (24.Qg5 Rg8 25.Qg8 Ng8+=) 24...Rg8 25.Kf1+–) 24.Bg4 (24.Rh1 Qe5 25.Rh8 Kh8 26.Rh1 Kg7+–) 24...Ng4 (24...Kf8 25.Rh1 Rg8 26.Rh4+–) 25.Qg4 Kf8 26.Kf3 Qf6 (26...Qe5 27.Rh1 Ke7 28.Qe4+–) 27.Ke2 Rh4 28.Qg3 Rh6 (28...Rd8 29.Rh1 Rh1 30.Rh1 cb4 31.ab4+–) 29.Rg1 Rg6 30.Qf3 (30.Qh2 cb4 31.Rg6 fg6+–) 30...Qf3 31.Nf3 Rg1 32.Rg1 cb4 (32...b6 33.Rh1 Ke7 34.Rh6+–) 33.ab4 Rc8 34.Rg4 (34.Kd3 Ke7+–) 34...a6 35.Kd3 1–0. Gibbons,Robert (2095) – Thornton,Gino, Open, Auckland NZL, 2003.

8.d3 c5 9.a3 Re8 10.Qc2 e4 11.Nh4 ed3 12.Bd3 Bd3 13.Qd3 Ne4 14.Bg7 Kg7 15.Nf3 Nc6 16.b5 Ne5 17.Ne5 Re5 18.f4 Re8 19.Nc3 Nc3 20.Qc3 Qf6 21.Qd3 Re6 22.Rad1 Rae8 23.Rfe1 Qe7 24.Kf2 f5 25.g3 Re4 26.Qd6 Qd6 27.Rd6 Rc4 28.Rd7 Kg8 29.Rb7 Rc3 30.Ra7 Rb3 31.a4 c4 32.Rc7 c3 33.b6 Rb6 34.Rc3 Ra6 35.Ra3 Rea8 36.Rea1 Kg7 37.Kf3 h6 38.e4 fe4 39.Ke4 Kf6 40.g4 Re6 41.Kf3 Ra5 42.h4 g5 43.f5 Ree5 44.hg5 hg5 45.Re3 Red5 46.Re6 Kf7 47.Ke4 Re5 48.Re5 1–0. Chess4Win (1700) – UweJS (1695), lichess.org, 2020.

8.d3 Nbd7 9.e4 Bg4 10.Nbd2 c6 11.h3 Bf3 12.Nf3 h6 13.a3 Nh7 14.Qc2 Ng5 15.Ng5 Qg5 16.Bc1 Qe7 17.Be3 a6 18.Rac1 f5 19.ef5 gf5 20.Bf3 f4 21.Bd2 Nf6 22.Rfe1 Rae8 (22...Qf7 23.d4 ed4 24.Bf4+=) 23.Bc3 (23.Bf4!? Qd7 24.Be3+/–) 23...Qf7 24.Re2 Nh5 (24...Nh7!? 25.h4 Qe7+=) 25.Rce1 Bf6 (25...Nf6 26.c5+/–) 26.a4 (26.c5!? Ng7+/–) 26...Ng7+/– 27.b5 ab5 28.ab5 c5 29.Bd5 Ne6 30.f3 (30.Ra1 Qg7 31.Ra7 Re7+/–) 30...Kh8 31.Ra1 Ra8 32.Ree1 Qe7 33.Ra8 Ra8 34.Be6 Qe6= 35.Ra1 Ra1 36.Ba1 Kg7 37.Bc3 Bh4 38.Qb1 Kf7 39.Be1 Be1+= 40.Qe1 d5 41.Qa5 b6 42.Qa7+= Kg6 43.Qa2 dc4 44.Qc4 Kf6 45.Qe6? Ke6–+ 46.Kf2 Kd5 47.Ke2 Kd4 48.Kd2 h5 49.h4 c4 50.dc4 Kc4 51.Kc2 Kb5 52.Kd3 Kc5 53.Ke4 Kd6 54.Kf5 b5 55.Kg5 b4 56.Kh5 b3 57.Kg5 b2 58.h5 b1Q (58...b1Q 59.Kh6 Qf5 60.g4 fg3 61.f4 g2 62.fe5 Kd5 63.e6 g1Q 64.e7 Qgg5) 0–1. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com (3+2), 2013.

8.d4 Nc6 9.b5 Ne7 10.de5 de5 (10...Nd7!?+=) 11.Be5+– c6 12.Qb3 Qb6 13.Nd4 cb5 14.cb5 Qc5 15.Nf3 Rac8 16.Nbd2 Qc2? (16...Ned5 17.Nc4 Rfd8 18.Nd4+–) 17.Bc4 (better 17.Qa3 Nfd5 18.Rac1 Be5 19.Rc2 Rc2 20.Bd1+–) 17...Qb3+– 18.Bb3 (better 18.ab3 Ra8 19.Bd4+–) 18...Ned5?? (better 18...Bd3+=) 19.Bd5+– Nd5 20.Bg7 Kg7 21.e4 Be6 22.ed5 Bd5 23.Rfc1 Rcd8 24.Rc7 Rd6 25.Re1 Rb6 26.a4 a6 27.Re5 Rd8 28.Rc5 Be6 (28...Rbd6 29.a5+–) 29.Nc4 (better 29.Kf1!? h6+–) 29...Bc4 30.Rc4 ab5 31.Rb4 Re6 (31...Rd1 32.Re1 Re1 33.Ne1+–) 32.Re6 fe6 33.g3 ba4 34.Rb7 (34.Ra4!? Rd7+–) 34...Kf6 35.Ra7 Rd3 36.Kg2 Ra3 (36...a3 37.Rh7 e5 38.Ra7+–) 37.Rh7 Ra1 38.Ra7 a3 39.Nd4 a2 (39...e5 40.Nb5+–) 40.Nc2 Rc1 41.Ra2 e5 42.Ne3 Ke6 (42...Rc6 43.Kf3+–) 43.Ra6 Kf7 44.Ng4 e4 (44...Rc5 45.Rf6 Kg7 46.Re6+–) 45.Ne5 Ke7 46.Ng6 Kf7 47.Nf4 Rc2 48.Re6 Rc4 49.h4 Kg7 50.Kf1 Rc1 51.Ke2 Rc2 52.Ke3 Rb2 53.Re4 Kf6 (53...Rb3 54.Nd3+–) 54.Kf3 Rb3 55.Kg4 Rb8 56.Re6 Kg7 57.Kg5 (57.Kf5 Rb7+–) 57...Rb7 (57...Rb5 58.Nd5! Rd5 59.Kf4 Rd2+–) 58.h5 Kf8 (58...Rb5 59.Kg4+–) 59.h6 (59.Ng6 Kg8 60.f4 Kg7 61.f5 Kg8 62.Re8 Kf7 63.Rf8 Kg7 64.f6 Kh7 65.Rh8) 59...Rb5 (59...Kf7 60.Re5 Kg8 61.Re8 Kf7+–) 60.Kg6 (60.Kg6 Rb1 61.h7 Rh1 62.Nh5 Rh5 63.Kh5 Kf7 64.Rh6 Kf8 65.h8Q Kf7 66.Rf6 Ke7 67.Qg7 Ke8 68.Rf8) 1–0. Silva,Janderson Rossi Da (1810) – Rayzel,Daniel Moeller (1745), Championship Paranaense Absoluto, 2017.

8.d4 ed4 9.Bd4 Nc6 10.Bc3 d5 11.b5 Ne7 12.Bb2 dc4 13.Bc4 Ned5 14.Nd4 Bg4 15.Qd2 Qd6 16.h3 Bd7 17.f4 Rfe8 18.Rf3 Ne4 19.Qc1 Nb6 20.Bd3 Nc5 21.Bf1 Nd5 22.a4 Ne3 23.Re3 Bd4 24.Bd4 Qd4 25.Raa3 Re3 26.Re3 Re8 27.Kh1 Qe3 28.g3 Qc1 0–1. axtur777 – aroraprince, lichess.org, 2019.

8.d4 Nbd7 9.de5 Ne5 10.Nc3 (10.Ne5 de5 11.Be5 Qe7+=) 10...Re8 (10...Qe7 11.Nd4 Be6 12.Ne6 fe6 13.f4=) 11.Nd4 (11.a3 a5=) 11...Bd7 (11...Bg4 12.f3 Bd7 13.e4=) 12.Qb3 (12.a3 a5=) 12...Nc6 (12...a5 13.a3=) 13.Rfe1 (13.Nc6 Bc6 14.Rfd1 Qe7+=) 13...Nd4 14.ed4 c6 15.Bf3 Qc7 16.h3 (16.Rad1 Bf5+=) 16...Re1 (16...Bf5 17.b5=) 17.Re1+= Re8 18.Re8 Be8 19.Bc1 Bd7 20.Bf4 a6 (20...Bf5 21.Qa3 b6 22.Qa4+–) 21.c5 Ne8 (21...Be6 22.Qc2+= (worse 22.Bd6 Qd6 23.cd6 Bb3 24.ab3 Nd7=)) 22.Ne4 (22.d5 Qd8+–) 22...Be6+= 23.cd6 Nd6? (better 23...Qd8 24.Qa4 Bf5+=) 24.Bd6+– Bb3 (24...Qb6 25.Qe3 Qd4 26.a3+–) 25.Bc7 Ba2 26.Nc5 Bd4 (26...Bd5 27.Be2+–) 27.Nb7 Bc3 (27...Bd5 28.Be2+–) 28.Bd6 (worse 28.Bc6 Bb4 29.Be4 Bc4+–) 28...Bd5 29.Be2 c5 (29...f5 30.Bc5+–) 30.Nc5 Bb4 31.Ba6 1–0. Janek – Ferenc, internet, 2017.

8.d4 e4 9.Nfd2 Nc6 (9...Re8 10.Qa4=) 10.b5+– Nb4 (10...Nb8 11.g4 Ng4 12.Bg4=) 11.Nc3 Qe7 12.g4 Bd7 13.g5 Ne8 14.Nde4 (14.Nce4 Bh3 15.a3 d5+–) 14...d5 (14...Bh3 15.a3 Bf1 16.Bf1 d5 17.Nf6 Nf6 18.gf6 Qf6 19.cd5 Qe7+–) 15.cd5+– Nd5 16.Ba3 Nd6? (better 16...Qa3 17.Nd5 Be6+–) 17.Nd5 Qe4 18.Nc7 Bh3 19.Bf3 Qe7 20.Na8 Ra8 21.Bd6 Qd6 22.Bb7 Rd8 (22...Rb8 23.Bc6 Bf1 24.Qf1+– (worse 24.Kf1 Qh2 25.Qg4 Rd8+–)) 23.Qf3 (better 23.Re1 Qe7 24.Bc6 Qg5 25.Kh1 Bf8+–) 23...Qe6 (23...Bf1 24.Rf1 Qe7+–) 24.Rfc1 Bg4 (24...Qd7 25.Bc6 Qe6 26.Rc5+–) 25.Qf4 Bh3 (25...Bf8 26.Qe4+–) 26.Rc6 Qe7 27.Rc7 Qf8 (27...Rd7 28.Rac1 Qf8 29.Bc8 Rc7 30.Qc7 Bc8 31.Qc8+–) 28.Bc6 Be6 29.a4 (29.Ra7 Qb4+–) 29...Bd5 (29...a5 30.ba6 Bd5 31.Bd5 Rd5 32.a7+–) 30.Ra7 Bc6 31.bc6 Rc8 (31...h6+–) 32.Rb1 Qe8 33.Rbb7 (33.Rbb7 Bd4 34.Qd4+–) 1–0. DEFFM – simonet, freechess.org, 2018.

7.0-0 Bg4

8.Nc3 c6 9.h3 Be6 10.Ng5 Bd7 11.d4 Bh6 (11...ed4!? 12.ed4 d5=) 12.de5 de5 13.Nge4 Bf5?? (better 13...Bg7+=) 14.Qd8+– Rd8 15.Nf6 Kg7 16.Nce4 Nd7 (16...Be4 17.Be5 Bc2 18.Ng4 Kf8 19.Nh6+–) 17.Nd7 Be4 (17...Rd7 18.Be5 Kf8 19.Bd6 Kg7+–) 18.Be5 f6 (18...Kg8 19.Nf6 Kh8 20.Ne4 Bg7 21.Nd6+–) 19.Nf6 Kf7 (19...Bd3 20.Ng4 Kf7 21.Nh6 Ke6 22.Bd3 Rd3 23.Bd4+–) 20.Ne4 Re8 (20...Bg7 21.Ng5 Kg8 22.Bg7 Kg7 23.Ne6 Kf7 24.Nd8 Rd8 25.Rad1+–) 21.Nd6 Ke7 22.Nb7 Kd7 23.Rad1 Ke6 24.f4 Re7 25.Nc5 (25.Nd8!? Rd8 26.Rd8 Kf7+–) 25...Kf7 26.Bf3 Bg7 27.Bc6 Rae8 28.Bd5 Kf8 29.Bd6 Bf6 30.f5 Kg7 31.Be7 Re7 32.Ne6 Kh8 33.fg6 hg6 34.Rf6 Re8 (34...Rd7 35.Rf8 Kh7 36.Rd4 Rd5 37.Rd5 g5 38.Rd7 Kg6 39.Rg7 Kh5 40.Rh8) 35.Rg6 Rg8 (35...Re6 36.Be6 Kh7 37.Bf5 a5 38.Rd4 ab4 39.Rh4) 36.Rh6 1–0. DEFFM – GuestSDFF, freechess.org, 2018.

8.d3 Nc6 9.a3 Qd7 10.Nbd2 a5 11.Qb3 ab4 12.ab4 Ra7 13.Ra7 Na7 14.Ra1 Nc6 15.b5 Ne7 16.Ra7 Rb8 17.Ne4 Ne4 18.de4 Qc8 19.Bc3 Ra8 20.Ra8 Qa8 21.h3 Be6 22.g4 (22.Ng5 Qc8+=) 22...c6 23.bc6 Nc6 24.Ng5 h6 25.Ne6 fe6 26.c5 d5 (26...dc5 27.Qc4 Double attack (27.Qe6 Discovered attack; 27.Qc4 Decoy)) 27.ed5+– ed5 28.Qd5 Kh7 29.Bd3 Qa3? (29...Qe8 30.h4+–) 30.Qe4 (better is 30.Qd6!? Ne7 31.Be5 Be5 32.Qe5 Qd3 33.Qe7 Kg8 34.Qb7 h5+–) 30...Ne7 31.Be5 Be5? 32.Qe5 Qc1 33.Kg2 Nc6 34.Qc7 Kg8 35.Qc8 Kg7 36.Qd7 Kg8 37.Qe8 Kg7 38.Qg6 Kf8 39.Qf6 Ke8 40.Bg6 Kd7 41.Bf5 Kc7 42.Qf7 Kb8+– 43.Qe8 Ka7 44.Qe4 Qc5 45.Qa4 Qa5 46.Qa5 Na5 47.e4 Nc4 48.e5! Ne5 49.f4 Nf7 50.Kg3 b5. Fournier,Frederic (1770) – sacken (1785), Active (5/0), 2004.

8.d3 Re8 9.Nc3 Nc6 10.b5 Ne7 11.Qc2 c5 12.a4 Rb8 13.a5 h5 14.Ng5 Nf5 15.h3 (15.Nge4 Be2 16.Qe2 a6+/–) 15...Be2+= 16.Qe2 Bh6 (16...d5!?+=) 17.Nge4+/– Ne4 18.Ne4 Qh4 19.Qf3 (19.g4 hg4 20.hg4 Ng7 21.Nd6 Re6+/–) 19...Qe7 20.Rfe1 Rbd8 21.Nc3 Nh4 22.Qg3 Nf5 23.Qf3 Nh4 24.Qe2 Qg5 25.g3 Nf5 26.Ne4 (26.Qf3 Rd7+/–) 26...Qe7+= 27.Kh2 d5 28.cd5 Rd5 29.Nc3 Rd7 30.Ne4 Ng7 (30...Rd5 31.Rec1+=) 31.Rab1 (31.Qc2 h4+/–) 31...b6 32.ab6 ab6 33.Ra1 f5 34.Nd2 Red8 35.Ra3 (35.Nc4!? Rd3 36.Be5+=) 35...e4= 36.Nc4 ed3 37.Qd2 Qe6 38.Ne5 Rd5 39.Nc6 (39.Rd3? Rd3 40.Nd3 c4–+; 39.Nd3? c4–+) 39...R8d6 40.Ra7 Bg5?? (better is 40...Rd7 41.Ra8 Ne8=) 41.Rg7+– (41.Bg7?! Rd7 42.Rd7 Rd7+–) 41...Kf8 42.Ra1 Rc6 43.bc6 Bf6 (43...Rd8 44.c7 Rc8 45.Qd3 c4+–) 44.Bf6 (better is 44.Rg6!? Re5 45.c7 Kf7 46.Rf6 Kf6+–) 44...Qf6 45.Raa7 (better is 45.c7 Kg7 46.c8Q Qa1 47.Qb7 Kh8 48.Qd5+–) 45...Qc6 (45...Rd8 46.Rgd7 Rd7 47.cd7 Qd8 48.Qd3 h4 49.Qd6 Kf7 50.Qd5 Kg7 51.Qe5 Kh6 52.gh4 f4 53.Qg5 Kg7 54.Qd8 Kf7 55.Qe8 Kf6 56.d8Q Kf5 57.e4#) 46.Rgc7 (46.e4 Qb7 47.Qh6 Qg7 48.Qg7 Ke8 49.Qe7#) 46...Qe8 47.e4! (47.e4 Rd7 48.Rd7 Qd7 49.Qh6 Ke8 50.Qg6 Kd8 51.Qg8 Ke7 52.Qg7 Ke6 53.Qd7 Ke5 54.Qd5 Kf6 55.Qf5) 1–0. Shiakallis,Theodosis – Kleopas,Georgios, CYP–ch Cyprus, 1995. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0)

8.d4 Nc6 9.b5+= Ne7 10.de5 de5 (10...Nd7!?+=) 11.Be5+/- Qd1 (11...c5 12.Qa4+/-) 12.Rd1 c6 13.Nc3 cb5 14.cb5 Rac8 15.Rac1 Rc5? (better 15...Rfd8+-) 16.Bd6 Bf3 (16...Rc3 17.Rc3 Ne8+-) 17.Bf3 (worse 17.gf3 Rg5 18.Kf1 Re8+-; 17.Be7?! Rc3 18.Bf3 Rc1 19.Rc1 Rb8+-) 17...Rc3 18.Rc3 (18.Be7?! Rc1 19.Rc1 Rb8+-) 18...Re8 (18...Ne8 19.Rc2 Nd6 20.Rd6+-) 19.Be7 Re7 20.Rd8 Re8 21.Re8 Ne8 22.Rc8 Bf8 1-0. Mely (2425) - vulcan7, ChessWorld.net, 2003.

8.d4 ed4 9.Nd4 Be2 10.Qe2 Nc6 11.b5 Nd4 12.Bd4 Ne4 13.Nd2 Nd2 14.Qd2 Bd4 15.Qd4 Qe7 16.e4 Rfe8 17.f3 Qe5 18.Rfd1 Qd4 19.Rd4 Re5 20.Rd5 Rd5 21.cd5 Kf8 22.Rc1 Rc8 23.a4 Ke7 24.Kf2 Kd7 25.Ke3 c6 26.bc6 bc6 27.Kd4 c5 28.Kc3 Rb8 29.Rc2 Rb4 30.Ra2 a5 31.g3 Ke7 32.h4 h5 33.Ra3 Kf6 34.Kd3 Ke5 35.Ke3 f5 36.f4 Kf6 37.ef5 Kf5 38.Kf3 Rd4 39.Rb3 Ra4 40.Rb6 Ra3 41.Kg2 Kg4 42.Rd6 Ra2 43.Kf1 Kg3 44.Rg6 Kf4 45.d6 Rd2 46.Rg5 c4 47.Ra5 c3 48.Rc5 c2 49.Ke1 Rh2 50.d7 Rh1 51.Kd2 Rd1 52.Kc2 Rd7 53.Rh5 Kg4 54.Rh8 Rd5 55.Kc3 Rh5 56.Rh5 Kh5 57.Kd4 Kh4 ½–½. carocan (1790) – bebi52 (1695), kurnik, 2012.

8.d4 Nbd7 9.h3 Bf3 10.Bf3 c6 11.Nd2 Qe7 Black plans e4 12.Ba3 b5?? (12...d5 13.Qa4 e4 14.Be2=) 13.Rc1?? (better is 13.Bc6 Rab8 14.Bb5+–) 13...Rac8 14.Nb3 a6 15.Na5 e4 16.Be2 Nb6 17.cb5 cb5 18.Nc6 Qd7 19.Na5 Rc1 20.Bc1 d5 21.Qb3 Nc4 22.a4 Rc8 23.ab5 ab5 24.Rd1 Ne8 25.f3 f5 26.fe4+= fe4 27.Bg4 Qc7 28.Bc8 Qc8 29.Qc2 Ned6 30.Qf2 Qd7 31.Rf1 Qf5 32.Nc6 Bh6?? 33.Ne7+– Kg7 34.Nf5 Nf5 35.g4 Nce3 36.Kh2 Nf1 37.Qf1 Nh4 38.Bh6 Kh6 39.Qf6 Nf3 40.Kg3 Nd2 41.h4 e3 42.Qf8 1–0. nizinna (1620) – mb88, kurnik, 2011.

8.h3 Bc8 9.Nc3 Nc6 10.b5 Ne7 11.d4 e4 (11...ed4!? 12.Nd4 a6+=) 12.Nd2+/– d5 13.cd5 Nfd5 14.Nce4 f5 15.Nc5 b6 16.Ncb3 Be6 17.Bc4 Qd6 Black intends f4 18.a4 Kh8 19.Ba3 Qd7 20.Rc1 Rf7 21.Nf3 f4? 22.Ne5 Be5+/– 23.de5 fe3 24.Bb2 Rf4? 25.Bd5 Nd5+/– 26.fe3 Rf1 27.Qf1 Ne3 28.Qf6 Kg8 29.Nd4 Re8 30.Ne6 Re6 31.Qf3 Qd2?? 32.Rc7 Qe1–+ 33.Kh2 Nf1 34.Kg1 Ng3 35.Kh2= Nf1 36.Kg1 Nd2 (36...Nd2 37.Kh2 Nf3 38.gf3 Qf2 39.Kh1 Qb2–+) 0–1. emeryt85 – alexcoinc, kurnik, 2011.

8.h3 Bd7 9.Nc3 a6 10.a4 Nc6 11.Qb3 b6 12.d4 ed4 13.ed4 a5 14.b5 Nb4 15.d5 Re8 16.Rfe1 Ne4 17.Ne4 Re4 18.Bg7 Kg7 19.Qc3 f6 20.Bd3 Re1 21.Re1 Qf8 22.Nd4 Re8 23.Ne6 Be6 24.de6 Qg8 25.Be4 Re6 26.Bd5 Re1 27.Qe1 Qd8 28.Bb7 Kf7 29.Qe4 Qe7 30.Qb1 Qe5 31.Bc8 f5 32.Qc1 Kg7 33.f4 Qd4 34.Kh2 Nd3 35.Qd2 Qf4 36.Qf4 Nf4 37.Kg3 Ne2 38.Kf3 Nc3 39.Ke3 Na4 40.Kd4 Kf6 41.Kd5 Ke7 42.Kc6 Kd8 43.Be6 Nc3 44.Bg8 a4 45.Kb7 a3 46.c5 dc5 47.Bc4 a2 48.Ba2 Na2 49.Kc6 Nc3 0–1. brozal – tsd123 (1610), kurnik, 2012.

8.h3 Bf5 9.d4 e4 10.Nfd2 h5 11.Nc3 Re8 12.b5 Nbd7 13.a4 b6 14.Nb3 a5 15.Ba3 White prepares the advance c5 15...Nh7 16.Qc2 Nhf6 17.Rfd1 g5 18.c5 bc5 19.dc5 dc5 20.Nc5 Qc8 21.Nd7 Nd7 22.Rac1 Ne5? (better is 22...c6!?+/–) 23.Nd5+– (23.Bh5?! Nd3 24.Nd5 Nc1 25.Qc1 Bh3 26.Ne7 Re7 27.Be7 Qe8 28.Qc7 Be6+–; worse is 23.Ne4 g4 24.hg4 hg4+–) 23...Nd3 24.Bd3 ed3 25.Qc7 (25.Qd2!? g4 26.Nc7 gh3 27.Ne8 Qe8+–) 25...Qe6 26.Ne7 Kh7 27.Nf5 Qf5 28.Rc5 Qg6 (better is 28...Re5+–) 29.Rd5 Rac8 30.Qd7 Red8 31.Qd8 Rd8 32.Rd8 g4 33.hg4 Qg4 34.R8d3 h4 35.Rd4! Qg5? 36.Rf4 h3 37.g3 Be5 38.Rf7 Kg6 39.Rdd7 Qg4 40.Bd6?? Bf6 41.Kh2?? Kf5?? 42.Bf4 Ke6?? 43.Ra7 Qf3 44.Kh3 Qh1 45.Kg4 Qd1 46.f3 (46.f3 Qa4 47.Rfb7+–) 1–0. carocan (1735) – reksio2, kurnik, 2011.

8.d3 Nbd7

9.Nbd2 a6 10.h3 Bf3 11.Nf3 c6 12.a4 Re8 Black plans e4 13.Qc2 d5 Black prepares the advance e4 14.cd5 cd5 15.Rfc1 Rc8 16.Qb3 e4 17.de4 de4 18.Nd4 White intends b5 18...Ne5 19.Rc8 Qc8 20.Rc1 Qd7 21.b5 Qd6 22.ba6 ba6 23.Ba3 Qd5 24.Qd5 Nd5 25.Ba6 Nd3 26.Bd3 ed3 27.Rd1 Bd4 28.ed4 Nf4 29.a5 Re2? 30.Kf1 Ra2+/– 31.Bb4 Ra4 32.Bd6 Ne6 33.Rd3 Ra5 34.Be5 Rd5 35.Ke2 Kf8 36.Ke3+/– Ke7 37.Ra3 Rd7 38.Ra6 f6 39.Bg3 Nd4= 40.f3 Nf5-/+ 41.Kf2 Rd2 42.Ke1 Rg2 43.Bb8 Rb2 44.Ra7 Ke6 45.Bc7 h5 46.Ra6 Kf7 47.Bd8 Nd4 48.Bf6 Nf3 49.Kf1 Nd2 50.Ke1 Ne4?? 51.Bb2+– g5 52.Rf6 Ke7 (52...Ke7 53.Rf5 Kd6+–). Fournier,Frederic (1985) – noja1008 (1965), Active (5/0), 2004.

9.Nbd2 Re8 10.a3 a6 11.Qb3 c6 12.h3 Be6 13.Qc3 White prepares the advance c5 13...b5 14.Rac1 Nb6 15.c5 Nbd5 (better is 15...Na4!? 16.Qc2 Nb2 17.Qb2 e4=) 16.Qc2+= Rc8 (16...dc5!? 17.Qc5 a5 18.ba5 Ra6+=) 17.cd6+/– Qd6 18.Qc5 (better is 18.Be5 Qd8 19.Nd4+–) 18...Qc5= 19.Rc5 Nd7 20.Rc2 a5 21.ba5 c5 22.Rfc1 Ra8 23.Ne4 Ra5 24.Nc5 Nc5 25.Rc5 e4 26.Bg7 (26.Nd4!? Bd4 A) 27.ed4?! Nf4 28.Re1 ed3+= (28...Nd3? 29.Bd3 ed3 30.d5+–); B) 27.Bd4 ed3 28.Bd3 Ra3 29.Bb5+–) 26...ef3+/– 27.Bf3 Kg7 28.Bd5 Bd5 29.Rd5 Ra3 30.Rb5 Rd3 31.Rb7 Rd6 32.Rcc7 Rf8 33.Rd7 Rd7 34.Rd7 Rc8 35.Rd2 Rc1 36.Kh2 h5 37.Re2 h4 38.f4 f5 39.g4 Kf6 40.g5 Ke6 41.Kg2 Kd5 42.Kf3 Rh1 43.Kg2 Rd1 44.Kf3 Rf1 45.Kg2 Rd1 46.Kf3 Rf1 47.Kg2 Rd1 ½–½. Fournier,Frederic (1985) – noja1008 (1955), Active (5/0), 2004.

8.d4 e4

9.Nfd2 Be2 10.Qe2 Qe7 11.Nc3 c6 (11...Re8 12.Rae1+=) 12.h3 (12.a3 Nbd7+=) 12...Nbd7 (12...d5 13.a3=) 13.b5 (13.a3 Rfe8=) 13...a6 (13...Rfe8 14.a4=) 14.bc6 (14.a4 Rfe8=) 14...bc6 15.Rab1 Rab8 16.Ba3 (16.f3 ef3 17.Qf3 d5=) 16...c5 17.Nb3 (17.Nd5 Qe6 18.Nf6 Bf6= (worse 18...Nf6 19.dc5 dc5 20.Bc5+–)) 17...cd4 (17...Rfc8 18.Rfd1=) 18.ed4+= Nh5?? (better 18...Rfe8+=) 19.Qe4+– (19.Ne4?! f5 20.Ng3 Qe2 21.Ne2 Rfe8+–) 19...Qe4 (19...Qd8 20.Bd6 Re8 21.Qd3+–) 20.Ne4 Nhf6 (20...Rfe8 21.Nd6 Re2+–) 21.Nf6 (worse 21.Nd6 Rfd8+–) 21...Bf6 (21...Nf6 22.Bd6 Rbc8 23.Bf8 Kf8 24.Rfc1+–) 22.Bd6 Rfc8 (22...Rbc8 23.Bf8 Nf8 24.Rbc1+–) 23.Bb8 Rb8 (23...Nb8 24.Rbc1+–) 24.c5 Rc8 25.Rfd1 Kg7 (25...Bg5 26.Rb2+–) 26.d5 Nc5 (26...Be7 27.c6 Nc5 28.Rbc1 Nb3 29.ab3+–) 27.Rbc1 Nb3 (27...Be7 28.d6 Bd6 29.Rd6+–) 28.Rc8 Na5 (28...Nd4 29.d6+–) 29.Rb1 Bd4 (29...Be7 30.Rb6 Bf6 31.d6+–) 30.d6 1–0. Janek – visbag, internet free game, 2017.

9.Ng5 Bf5 10.g4 (10.f3!?=) 10...Bd7 (better 10...Ng4!? 11.Ne4 Nh2 (11...Be4?! 12.Bg4 Qh4 13.Nd2=) 12.Nd6 Qd6-/+) 11.Nc3=+ h6 (better 11...Qe7=+) 12.Nge4+– Ne4 13.Ne4 Nc6 14.a3 f5 15.gf5 gf5 16.Ng3 f4 17.ef4 Rf4 18.Bf3 (18.Nh5 Rd4 19.Qc1 Qe7+=) 18...Bh3 (18...Qh4+=) 19.Bg2 (19.Re1 Bd4 20.Bd5 Kf8 21.Bd4 Nd4 22.Bb7 Rb8+–) 19...Qd7 (19...Bg2!? 20.Kg2 Bd4 21.Bd4 Nd4=) 20.Nh5 (better 20.Qd2!? Raf8 21.Bd5 Kh8 22.Bc6 bc6 23.Rfe1 Rf2 24.Re2 Re2 25.Qe2= (25.Ne2? h5–+)) 20...Rg4 (20...Rg4 21.Ng3 Bg2 22.Kg2 Rf8-/+ (22...Bd4?! 23.Bd4 Rd4 24.Qh5=)) 0–1. algernon (2330) – marcosarrudaa (2485), net–chess.com, 2014.

8.h3 Be6

9.a3 Nbd7 10.d3 b6 11.Nbd2 a5 12.Qc2 ab4 13.ab4 Qe7 14.Ra8 Ra8 15.Ra1 Ra1 16.Ba1 Nf8 17.Qa4 Qd7 18.Qd7 N6d7 19.Bc3 c5 20.bc5 bc5 21.Ne4 d5 22.cd5 Bd5 23.Ned2 f5 24.e4 fe4 25.Ne4 (25.de4 Be6+=) 25...Be4 (25...Ne6!?=) 26.de4+= Ne6?? (better is 26...Kf7+=) 27.Bc4+– Kf7 28.Ng5 Ke7 29.Ne6 (29.Ne6 Bh6 30.Ba5+–) 1–0. Fournier,Frederic – jchez, Active (5/0), 2004.

9.a4 h6 10.b5 Nbd7 11.d4 ed4 12.Nd4 Nc5 13.Nd2 Qe7 14.Qc2 Nfd7 15.Bf3 Rab8 16.a5 Ne5 17.Be2 Bd7 18.N2b3 Nb3 19.Nb3 Be6 20.Nd4 Nd7 21.Rac1 Nc5 22.Ba3 Nd7 23.a6 Qf6 24.ab7 Rb7 25.Nc6 Nb6 26.Rb1 Qc3 c4 draws heavy fire 27.Qc3 Bc3 28.Rfc1 Bf6 29.Bb2 Kg7 30.Bf6 Kf6 31.Ra1 Ra8 32.Bf3 Nc4? (better is 32...Re8+–) 33.Nd4 Rab8 34.Bb7 Rb7 35.Ne6 (35.Ne6 Ke6 36.Rc4+–) 1–0. carocan (1835) – anamarija86 (1845), kurnik, 2011.

9.Qc2 h6 10.d4 e4 (10...Bf5 11.Qb3 e4 12.Nfd2+=) 11.Nfd2+= d5 12.cd5 Bd5 13.Nc3 Can e4 get defended? 13...Re8 14.Nd5 Nd5 15.a3 f5 16.Bc4 c6 17.Rae1 Nd7 (17...b5 18.Bb3=) 18.f3 (18.b5 N7b6 19.bc6 bc6+=) 18...ef3= 19.Rf3 Kh8 20.e4 fe4 21.Re4 Qg5 (21...Re4!? 22.Ne4 Qe7=) 22.Rg4 Qe7 23.Qg6 Rg8 (23...N7f6 24.Rgg3+/-) 24.Rf7 (better 24.Re4!? Qd8 25.Rf7+-) 24...Qe3+/- 25.Kh1 Nf8 (better 25...Qd2 26.Rg7 N7f6+/-) 26.Qh5?? (better 26.Qc2 b5 27.Bd5 cd5 28.Qc6+-) 26...Qd2-/+ 27.Bd5 cd5 28.Kh2 (better 28.Qd5 Re8 29.Qb7 Re1 30.Kh2-+) 28...Rc8?? (28...Nh7 29.Rgg7 Rg7 30.Rg7 Kg7 (30...Qb2 31.Qg6 Qg2 32.Kg2 Nf6 33.Qh6 Nh7 34.Qh7) 31.Qd5 Qf4 (31...Qb2?! 32.Qb7 Kg6 33.Qe4 Kg7 34.Qb7 Kg6 35.Qe4 Kg7 36.Qb7=) 32.g3 Qf2 33.Qg2 Qg2 34.Kg2 Kg6-+) 29.Rb7? (better 29.Rgg7!? Rg7 30.Rg7 Kg7 31.Qg4 Kf7 32.Qc8 Qb2 33.Qc7 Kg8 34.Qg3 Kh7 35.Qc7 Kg8 36.Qg3 Kf7 37.Qc7 Ke8 38.Qe5 Kd8 39.Qf6 Ke8 40.Qe5 Kd8 41.Qd5 Nd7 42.Qg8 Kc7 43.Qg3 Kc6 44.Qg6 Kb5 45.Qh5 Ka4 46.Qa5 Kb3 47.Qd5 Ka3 48.Qd7 Qb4 49.d5=) 29...Rc6-/+ (29...Qb2?? 30.Rbg7 Qg2 31.Rg2 Rg7 32.Qh6 Rh7 33.Qf6 Rg7 34.Qg7) 30.Ra7? (better 30.Qd5 Rg6 31.Ba1-/+) 30...Qb2-+ 31.Qe8 (31.Qd5 Rg6 32.Rg6 Ng6 33.Ra8 Ra8 34.Qa8 Kh7 35.Kh1-+) 31...Rf6 32.Rgg7 (32.b5 Ne6 33.Qc6 Nd4 34.Qd5 Nf3 35.Kg3 Ng5 36.Rg7 Qf2 37.Kh2 Rg7-+) 32...Rg7 33.Rg7 Kg7 34.Qe5 (34.Qe7 Kg6 35.Qe8 Rf7 36.Qc6 Kg7 37.Qd5 Qa3 38.Qe5 Kg8-+) 34...Qd2 (better 34...Qa3 35.Qe7 Rf7 36.Qe5 Kg8 37.Qd5 Qb4 38.h4-+) 35.Qg3 (35.Qc7 Kg8 36.Qe5 Qf4 37.Qf4 Rf4-+) 35...Ng6 (35...Rg6 36.Qf3-+) 36.Qc7 (36.b5 Qd4 37.Qc7 Rf7-+) 36...Rf7 37.Qd6 (37.Qg3 Kh7 38.Qg4 Nf4-+) 37...Qf4 (37...Nf4 38.Qf4 Qf4 39.Kh1 Re7 40.g4 Re2 41.g5 Qc1) 38.Qf4-+ Nf4 0-1. antonsworld (2135) - almostadams (2570), Swedish Chess, 2020.

9.Nc3 Nbd7 10.d3 (10.Ng5 Qe7+=) 10...c6 (10...a5 11.a3=) 11.Ng5 h6 (11...Qe7!?+=) 12.Ne6+– fe6 13.a4 White prepares b5 (13.Qc2 Qb6+–) 13...a5 (13...d5 14.a5+–) 14.b5 c5 15.Nb1 b6 (15...Qb6 16.Nd2+–) 16.Bf3 Rb8 17.Nc3 Nh7 18.Be4 Qg5 19.g3 h5 20.Bg2 Ndf6 21.Qe2 Rbd8 22.Rad1 d5 (better 22...Nd7!?+–) 23.Bc1+– Qf5?? (23...e4 24.cd5 Nd5 25.Nd5 ed3 26.Qd3 ed5 27.Bd5 Kh8+–) 24.e4 de4 25.de4 Ne4 26.Ne4 (worse 26.Qe4 Qe4 27.Be4 Kf7+–; worse 26.Be4 Qh3 27.Rd8 Rd8 28.Bg6 Nf6+–) 26...Qf7 27.Rd8 Rd8 28.Rd1 Rd4 (28...Qe7 29.h4 Rd7 30.Rd7 Qd7 31.Ng5+–) 29.Bb2 Rd1 30.Qd1 Nf6 (30...Qe7+–) 31.Qd8 Kh7 (31...Qf8 32.Qb6 Qe7 33.Qc5 Qc5 34.Nc5 Bf8 35.Ne6 Bd6+–) 32.Ng5 (32.Ng5 Kh6 33.Nf7 Kh7 34.Ng5 Kh6 35.Be5 h4 36.Bf6 hg3 37.Bg7 Kg7 38.Qe7 Kh6 39.f4 Kh5 40.Qh7) 1–0. Jan_Ek (2125) – Pruess (2005), internet, 2020.

9.d4 ed4 10.Nd4 Bd7 (10...a5 11.a3=) 11.a4 Nc6 12.b5 Nd4 13.Bd4 Ne8 (13...c5 14.Bb2+=) 14.Nd2 Bd4 15.ed4 Qf6 16.Nb3 Ng7 17.Bf3 c6 18.c5 (18.Na5 Rac8+=) 18...d5 19.bc6 bc6 20.Na5 (20.Re1 Rfe8=) 20...Nf5 21.Bg4 h5 22.Bf5 Bf5 23.Qd2 Rfe8 24.Rfe1 Rab8 25.Re8 Re8 26.Ra2 (26.Nb7 Re4 27.Rd1 Re6+=) 26...Be4 (26...Re4 27.Nb3 Bh3 28.gh3 Qf3–+) 27.Rb2+/– g5 28.Qe3 Re6+= 29.Qd2 Bf5 Black prepares the advance g4 30.Nb7+/– g4 31.hg4 Bg4 32.Nd6 Re2 33.Rb8 Kg7?? 34.Qd3 Re1 35.Kh2 Qf4 36.Qg3= Qc1 37.Qh4?? Rh1 38.Kg3 Rh4 39.Kh4 Qe1 40.Kg3–+ f5 41.Rb7 Kf8 42.Rf7?? Attacking the isolated pawn on f5 42...Kg8–+ 43.Ra7 Qc3 44.Kh4 Qd4 45.Kg5 Qc5 46.Nf5 Bf5 47.Kf5 Qf2 48.Ke6 Qg2 49.Kd6 Qg3 50.Kc6 h4 51.Ra8 Kg7 52.Ra7 Kf6 53.Ra8 h3 54.Rh8 Ke5 55.a5 h2 56.a6 Qg2 57.a7 d4 58.Kb6 h1Q 59.Rh1 Qh1 60.Kc7 Qa8 61.Kb6 Qa7! 62.Ka7 d3 63.Kb6 d2 64.Kc7 d1Q 65.Kc6 ½–½. carocan (1685) – cugierkotka, kurnik, 2011.

9.d4 e4 10.Nfd2 c5 11.bc5 dc5 12.d5 Bc8 13.Qc2 Re8 14.Nc3 Now all is on e4 14...Na6 15.Nce4?? (better is 15.a3+=) 15...Ne4–+ 16.Ne4 Nb4 17.Qb1 Bb2 18.Qb2 Re4 19.a3 Na6 20.Bd3 Re8 21.e4 Qd6 22.f4 White plans e5 22...b6 23.e5 Qf8 24.f5 Bf5 25.Bf5 gf5 26.Rf5 Qh6 27.Raf1 Re7 28.Qf2 Rf8 (better is 28...Qg7=) 29.Qg3+/– Kh8 30.e6 (30.Rg5 f5 31.Qf4+/– (31.Rgf5?! Rg8 32.Qc3 Qg7+=)) 30...fe6?? (better is 30...Qg7 31.Qg7 Kg7 32.Rg5 Kh8=) 31.Rf8 (31.Rf8 Qf8 32.Rf8) 1–0. carocan (1685) – anyrteb (1695), kurnik, 2011.

8.h3 Bf3

9.Bf3 Nbd7 10.a4 Rb8 (10...e4 11.Be2=) 11.Nc3 (11.d3 Re8+=) 11...c5 (11...e4 12.Be2=) 12.b5 b6 (12...e4 13.Be2+=) 13.d4 (better 13.d3+–) 13...ed4 14.ed4 cd4 15.Qd4 Ne4?? (better 15...Re8=) 16.Qe4+– f5 (16...Rc8 17.Be2+–) 17.Qd5 (17.Qc2 Nc5+–) 17...Kh8 18.Qd6 (18.Rad1 Rc8 19.Be2 Nc5+–) 18...Nc5 (18...Ne5 19.Qd1 Rc8 20.Qe2 Nc4 21.Bc6 Nb2 22.Qb2+–) 19.Qd8 (19.Rfd1 Qd6 20.Rd6 Rbd8+–) 19...Rbd8 20.Bd5 (20.Rad1 Rfe8+–) 20...Nd7?? (better 20...Nd3 21.Ba3 Bc3+–) 21.Rab1 (21.a5 Nc5 22.ab6 ab6+–) 21...Nf6 (21...Ne5 22.Na2 Rc8 23.Rfe1+–) 22.Bf3 (22.Rfe1 Rfe8+–) 22...Rd2 (22...Rd4 23.Ba3 Re8 24.Bc6+–) 23.Nd5 (23.Ba3 Re8+–) 23...Nd5 (23...Rb2 24.Rb2 Nd5+–) 24.Bg7 (24.cd5?! Bb2 25.Rfd1 Bc3+–; 24.Bd5?! Bb2 25.Rfd1 Rd1 26.Rd1 Kg7+=) 24...Kg7 25.Bd5 Re8 26.Rfd1 Rd1 27.Rd1 h5 (27...Kf6 28.Rc1+–) 28.g3 Re7 (28...Kf6 29.a5! g5 30.a6+–) 29.Kg2 (29.a5 Kf6+–) 29...g5 (29...Kf6 30.a5! ba5 31.Ra1+–) 30.Rd2 (30.Rc1 Rd7+–) 30...Kf6 31.Kf1 f4 (31...Rd7 32.Re2+–) 32.Kg2 (32.gf4!? gf4 33.Re2 h4+–) 32...fg3 33.fg3 Kg6 (33...g4 34.h4 Re1 35.a5 ba5 36.Ra2+–) 34.g4 hg4 (34...h4 35.Kf2 Re8 36.Re2 Rf8 37.Kg2+–) 35.hg4 Kf6 (35...Re3 36.Ra2 Re7 37.Kf2+–) 36.Rf2 Kg7 (36...Kg6 37.Kg3+–) 37.Rf5 Kg6 38.Kf3 Rc7 (38...Re1 39.Rf7 Rf1 40.Ke4 Re1 41.Kd4 Rd1 42.Ke5 Re1 43.Kd6+–) 39.Bc6 (39.c5 bc5 40.a5 c4+–) 39...Re7 (39...Rh7 40.c5 Rh3 41.Ke4+–) 40.c5 bc5 41.Rc5 Rf7 (41...Re6 42.a5 Rf6 43.Ke3+–) 42.Rf5! Rh7 (42...Rf5 43.gf5 Passed pawn) 43.Ke3 (43.Be8 Kh6 44.Rf6 Kg7 45.Rf7 Kg8 46.Rh7 Kf8 47.Bg6 Kg8 48.Ra7 Kh8 49.b6 Kg8 50.Rf7 Kh8 51.b7 Kg8 52.b8Q) 43...Rh4 (43...Rh3 44.Ke4 Ra3 45.Be8 Kh6 46.Rf6 Kg7+–) 44.Be8 Kh6 45.Rf6 Kg7 46.Rg6 (better 46.Rf7 Kh6 47.Bc6 Kg6 48.Ra7 Rg4+–) 46...Kf8 47.Bd7 Ke7 (47...Rh7 48.Bf5 Rh1 49.Kd4+–) 48.Bf5 Rh3 (48...Rh8 49.Ra6 Rd8 50.Ra7 Kf6 51.b6+–) 49.Kd4 Ra3 50.Ra6 Kd8 51.Ra7 (51.Ra7 Rf3 52.b6 Rf2 53.a5 Rh2 54.Kc4 Rd2 55.Rh7 Rb2 56.b7 Ke8 57.a6 Rb6 58.a7 Rc6 59.Kd5 Rc5 60.Kc5 Kd8 61.b8Q) 1–0. retiponziani (1925) – Napoleon (1890), ChessWorld.net, 2018.

7.0-0 h6

8.b5 b6 9.Nc3 Bb7 10.d4 ed4 11.Nd4 a6 12.a4 (12.Bf3 Qc8+=) 12...a5 (12...Nbd7!?=) 13.Bf3+– Bf3 14.Qf3 (14.gf3?! Re8=) 14...Nbd7 15.Nc6 Qe8 16.Qe2 (16.Nd5 Nd5 17.Bg7 Kg7 18.cd5 Nc5+–) 16...Nc5 17.f3 h5 (17...Rc8 18.e4+=) 18.Rad1 Bh6 (18...h4 19.e4+–) 19.e4 Nfd7? (better 19...h4+–) 20.Nd5+– Na4 (20...Ne6 21.f4 Kh7+–) 21.Nc7 1–0. GuestVMJM – GuestCFCN, freechess.org, 2018.

8.b5 e4 9.Nd4=.

8.Nc3 Nc6 9.b5 Ne7 10.d4 ed4 11.Nd4 c5 (11...Nf5 12.Qd2=) 12.bc6+= Nc6 13.Ndb5 Qb6 (13...Ne8 14.Re1+=) 14.Na4+– Qa6? (better 14...Qd8+–) 15.Nc7+– (15.Nc7 Qa5 16.Na8+–) 1–0. DEFFM – GuestRMHX, freechess.org, 2017.

8.d3 Re8 9.Nbd2 Nbd7 10.Qc2 c6 11.a3 Nh7 (11...Qe7 12.Rfd1+=) 12.Ne4 White plans c5 12...Ndf8 (12...Ndf6 13.Rad1+=) 13.c5+– dc5 14.bc5 Re6 15.Nfd2 (15.d4!? ed4 16.Nd4+–) 15...Nf6 16.Nd6 Ne8 17.N2c4 b5 (17...Nd7 18.f4 ef4 19.Bg7 Kg7 20.Rf4+=) 18.Ne8 (18.Nc8?! bc4 19.Nd6 Nd6 20.cd6 cd3 21.Bd3 Rd6=+) 18...bc4? (better 18...Qe8!? 19.Nd6 Qe7+–) 19.Ng7+– Kg7 20.Qc4 Qe7 21.Rab1 Rf6 (21...Nd7 22.d4+–) 22.Bf3 (better 22.f4 Be6 23.Qe4+–) 22...Rf3 23.gf3 Bh3 24.f4 Bf1 25.Kf1 Nd7 26.fe5 Ne5?? (better 26...Nc5 27.e6 Kh7 28.ef7 Rf8+–) 27.f4 Qd7 (27...f6 28.fe5 fe5 29.Qe4 Qf6 30.Ke2+–) 28.Be5 (28.fe5?! Qh3 29.Ke2 Qh2 30.Kd1 Qg1 31.Kc2 Qf2 32.Kb3 Qe3+–) 28...f6 29.Qa6 (29.Bd4 Re8+–) 29...Qh3 30.Ke2 Qh2 31.Kd1 Qg1 32.Kc2 Qh2 (32...Qg2 33.Kc3 fe5 34.Qb7 Kf6 35.fe5 Kg5 36.Qa8 Qh2 37.Qd8 Kh5+–) 33.Kc3 fe5 34.Qb7 (34.Rb7 Kg8 35.Qc4 Kh8 36.Qf7 Qb2 37.Kb2 ef4 38.Qg7) 34...Kf6 35.Qc6 Kf5 36.Qa8 Kg4 37.Rb2 Qh5 38.Rg2 Kh3 39.Rg1 Qe2 (39...e4 40.Qe4 Qc5 41.Kb3 Qb5 42.Ka2 Qb7 43.Qb7 g5 44.Qh1) 40.Qh1 (40.Qh1 Qh2 41.Qf3 Qg3 42.Qg3) 1–0. Souza,Kim Garcia De (1730) – Da Cunha,Pedro Lisboa, Championship Paranaense Absoluto, 2017.

8.d4 ed4 9.Nd4 Nc6 10.Nc6 bc6 11.Qa4 (11.Bf3 Rb8 12.Bc3 Be6+=) 11...Bd7 (11...a5 12.Nd2+= (worse 12.Qc6 Bd7 13.Qb7 Rb8=+)) 12.Bf3 (12.Nc3 Re8+=) 12...c5 (12...a5!?+=) 13.b5+– Rb8 14.Qa7 Bf5 (14...c6 15.a4 Ra8=) 15.Nd2+– Re8 16.Bc6 (16.Rfd1 Re7+–) 16...Bd7+– 17.Bd7 Qd7 18.Rfd1 Ra8 (18...Qc8 19.Qa3+–) 19.Qb7 Reb8 (19...Ra4 20.Qf3 Qg4 21.Qc6+– (worse 21.Bf6 Qf3 22.gf3 Bf6=)) 20.Qf3 g5?? (better 20...Qe6+–) 21.Bf6+– g4 22.Qf4 1–0. DEFFM – berserkergang, freechess.org, 2018.

8.Nc3 Be6

9.d4 ed4 10.Nd4 Bd7 11.Bf3 c6 12.a4 White prepares b5 12...a6 (12...Qe7 13.b5+=) 13.b5 (13.a5 c5 14.bc5 dc5+–) 13...Kh7 (13...Re8 14.Re1+=) 14.Ba3 Be8 (14...Qa5!? 15.Nce2 Ne8+–) 15.Nde2+– Qc7? (better 15...Bd7+–) 16.Bd6 (16.Bd6 Qa5 17.Bf8 Bf8 18.Qb3+–; 16.Qd6?! Qd6 17.Bd6 Rg8+–) 1–0. DEFFM – GuestMYFB, freechess.org, 2018.

8.d4 e4

9.Nfd2 c6 10.Nc3 d5 11.Qb3 Kh7 12.Rad1 Bg4 13.f3 Bc8? (better is 13...ef3 14.Bf3 Re8+=) 14.fe4+– de4 15.Nde4 Ne4 16.Ne4 Bf5 17.Bf3 Qh4 (17...Be4 18.Be4 f5 19.Bf3+–) 18.Ng3 Bg4 19.Rde1 Nd7 20.Bg4 Qg4 21.Rf4 Qe6 22.Ref1 Nf6?? 23.e4 Nh5 24.d5 Qd7 25.Bg7 Kg7 26.R4f3 cd5? 27.ed5 Rae8? 28.Qc3 Kg8 29.Nh5 gh5 30.Rg3 Kh7 31.Qg7 1–0. futsalboy (1730) – janek3555, kurnik, 2011.

9.Nfd2 c6 10.Nc3 Re8 11.Qc2 Will e4 fall? 11...d5 12.Rad1 a6 13.a4 White intends b5 13...Be6 14.b5 Nbd7 15.cd5 cd5 16.Ba3 Rc8 17.Qb3 a5 18.Rc1 b6 19.Nd1 Bf8 20.Rc8 Qc8 21.f3 Qc7 22.Bf8 Kf8 23.fe4 Ne4 24.Ne4 de4 25.Qa3 Kg7 26.Nc3 Nf6 27.d5 Nd5 28.Ne4 Bf5 29.Qb2 Kh7 30.Nf6 Nf6 31.Qf6 Re3 32.Bf3 Qe7 33.Qb6 Re1?? 34.Qf2 Rf1 35.Qf1 Qe3 36.Qf2 Qf2?? 37.Kf2+– Bc2?? 38.Ke3 Ba4 39.b6 1–0. elsh1403 – suxfyjh, kurnik, 2011.

9.Nfd2 Nc6 10.b5 Ne7 11.Nc3 Bf5 12.Qb1 d5 13.cd5 Ned5 14.Nce4 Ne4 15.Ne4 Re8 16.Bd3 Nb4 17.Nc5 Nd3 18.Nd3 c5 19.Rd1?? (better is 19.bc6 bc6 20.Qd1+/–) 19...c4–+ (19...cd4?! 20.ed4 Re2 21.Bc3+=) 20.Qc1 Bd3 21.f3 Qe7 22.Kf2 Rad8 23.a4 Qh4 24.Kg1 Re6 25.Ra3 Rde8 26.Rad3 cd3 27.Rd3 Qg5 28.Kf2 h5 29.Qc3 h4 30.Bc1 h3! 31.g3 Qd5 32.e4 Qa2 33.Qd2 Qa4 34.d5 Rb6 35.d6 Qb5 36.d7 Rd8 37.Ba3 Qe5 38.Rd5 Qe6 39.Bc5 Rb2 40.Ba7 Rd2 41.Rd2 Rd7 42.Re2 Qc4 43.Be3 Bd4 44.f4 Be3 45.Ke3 (45.Ke3 Rd3 46.Kf2 Qc5 47.Kf1 Rf3 48.Ke1 Qc1; 45.Re3 Qc2 46.Re2 Qc5 47.Re3 Rd3 48.Kf3 Re3 49.Kf2 Qc3 50.g4 Qe1). carocan (1845) – kriskris73 (1700), kurnik, 2011.

9.Nfd2 Qe7 10.Nc3 c6 11.a3 (11.a4 Bf5+=) 11...d5 (11...Bf5 12.d5+=) 12.b5 (12.Rc1 Bf5+=) 12...h5 (12...Be6 13.cd5 cd5 14.a4+=) 13.a4 a6? (better 13...Rd8+=) 14.Ba3+– Qe6 15.Bf8 Bf8 16.Qc2 (16.bc6 bc6 17.Rb1 h4+–) 16...Bd6 (16...Nbd7 17.c5+–) 17.Rfb1 (17.c5 Be7+–) 17...Qf5 (17...h4 18.bc6 bc6 19.h3+–) 18.bc6 (18.cd5 cd5 19.a5 Be6+–) 18...bc6 19.cd5 cd5 20.Rb6 Bc7 (20...Qe6 21.Nd5! Nd5 22.Rd6 Qd6 23.Qc8 Kg7 24.Ne4 Qc6+–) 21.Rf6! (21.Rf6 Qf6 22.Nd5 Bh2 23.Kh2 Qd6 24.Kg1+–) 1–0. Pierre – Playmaster, internet, 2020.

9.Nfd2 Bf5 10.Nc3 Qd7 11.Qc2 Can e4 get defended? 11...Re8 12.b5 c6 13.a4 c5 14.dc5 dc5 15.Rad1 Qe6 16.a5 Nbd7 17.Qb3 Ng4? (17...Ne5 18.h3+=) 18.Nd5 Rac8? (better is 18...Qd6!? 19.Bg4 Bg4+/–) 19.Bg7 Kg7 20.Qc3 (20.h3 Nge5+–) 20...f6 (20...Ngf6 21.h3 Qe5 22.g4 Qc3 23.Nc3+/–) 21.Nb3 Qd6 22.Nf4 Qe5 23.Qe5 Nge5 24.Nd5 Be6 25.f4 Nf7 26.g4 f5 27.h3 Nf6 28.Rd2 fg4 29.hg4 Ng4 30.Rfd1 Bd5-/+ 31.Rd5?? Ne3–+ 32.Rd7 Nd1 33.Bd1 Rcd8 34.Rd8 Rd8 35.Bg4 Rd3 36.Nc5 Rg3 37.Kf2 Rg4 38.Ke3 Nd6 39.Ne6 Kf6 40.c5 Ke6 41.cd6 Kd6 42.Ke4 Kc5 0–1. nizinna (1650) – uomonelmuro (1705), kurnik, 2011.

7.d3 a5

8.a3 b5.–+

8.a3 b6 9.0-0 Bb7 10.Nc3 Nc6 11.Qb3 (11.b5 Ne7+= 12.d4 e4 13.Nd2 Qd7 14.Qc2 Qf5 15.d5 Rfe8+/– 0.78) 11...Nd7 (11...ab4 12.ab4 Qe7 13.e4 Nd4 14.Nd4 ed4 15.Nd5 Nd5+= 0.47) 12.Nd2 (12.b5 Ne7 13.d4 Nf5 14.Qd1 Re8 15.Re1 Qf6+= 0.37) 12...Ne7 (12...Qh4 13.b5 Ne7 14.Bf3 Bf3 15.Nf3 Qg4+= 0.41) 13.Nd5 (13.Bf3 Bf3 14.Nf3 c6+= (14...f5 15.Ng5 a4+/– 1.37) 15.b5 Nc5+= 0.41) 13...Kh8 (13...a4 14.Ne7 (14.Qa2 Nd5 15.cd5 c6= 0.00) 14...Qe7 15.Qc2= f5= 0.12) 14.Bf3 (14.f4 c6 15.Ne7 Qe7+= 0.34) 14...c6 15.Ne7 (15.Nc3 f5+= 0.34) 15...Qe7 16.Bc3 f5 (16...ab4 17.ab4 f5 18.Qb2+=) 17.Rab1 (17.ba5 Nc5 18.Qd1 e4 19.Bg7 Kg7 20.de4 fe4 21.Ne4 Ne4 22.ab6 c5=) 17...a4 (17...ab4 18.ab4 f4 19.b5=) 18.Qb2 Nf6 19.c5 dc5 (19...Nd7!?+=) 20.bc5+/– Ba6 (20...Nd5 21.Bd5 (21.cb6 Nc3 22.Qc3 e4-/+) 21...cd5 22.cb6+/– (22.Qb6?! Ba6=)) 21.cb6 Bd3 22.Bc6+– Bf1 23.Ba8 Ra8 24.b7 Rb8 25.Be5 Ba6? 26.Bb8 Nd7 27.Bd6! White prepares b8 27...Qd6 28.b8Q Nb8 29.Qb8 Qf8 30.Rb4 Bc8 31.Ra4 f4 32.Rf4 (32.Rf4 Qg8 33.Ra4+–) 1–0. Gaprindashvili,V (2475) – Duman,A (2235), European GP, Izmir TUR, 2003. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 e5 6.d3 0-0 7.Be2 a5)

8.a3 c6 9.0-0 Nbd7 10.Nbd2 Nh5 11.d4 f5 12.de5 de5 13.Ne5?? (better is 13.c5+/–) 13...Ne5–+ 14.Bh5 gh5 15.Qc2 Qg5?? (better is 15...f4–+) 16.f4+= Qh6 17.fe5 Qe3 18.Kh1 Be5?? (18...ab4 19.Rfe1 Qf2 20.ab4 Ra1 21.Ra1 Rd8=) 19.Rae1+– (19.Rae1 Qh6 20.Re5+–) 1–0. Fournier,Frederic (1800) – asgd (1755), rated blitz game (3/3), 2002.

8.a3 Ne8 9.Nc3+= Nc6 (9...Nf6 10.0-0+= Qe7 11.d4 Re8 12.b5 Bf5+= 0.28; 9...ab4 10.ab4 Ra1 11.Qa1 Na6 12.Qa5 Nf6+= 0.37; 9...Nd7 10.0-0 Nef6 11.Qc2 Re8 12.Rfd1 Nb6+= 0.31; 9...Be6 10.0-0 f5 11.d4 e4 12.Nd2 Qg5+= 0.34; 9...Bf5 10.0-0 ab4 11.ab4 Ra1 12.Qa1 Nf6+= 0.47; 9...Bg4 10.0-0 Nd7 11.Nd2 Bf5 12.Qc2 Nef6+= 0.37; 9...f5 10.0-0 Be6 11.d4 e4 12.Nd2 Qg5+= 0.34) 10.Qb3 (10.b5 Ne7+= 11.0-0 Nf6 12.d4 ed4+= 0.44) 10...Be6 (10...ab4 11.ab4 Ra1 12.Ba1 Bg4= 0.22) 11.0-0 (11.b5 Nb8 12.0-0 Nd7+= 0.37) 11...g5 (11...Nf6 12.b5 Ne7 13.Ng5+=; 11...f5 12.b5 Nb8+= 0.37) 12.b5 Nb8 13.Qd1 Nd7 14.a4 f5 15.d4 g4 16.Nd2 (16.Ne1 Qg5=) 16...e4 (better is 16...ed4!? 17.ed4 Bd4+=) 17.Rc1 b6 (17...Qh4 18.Nd5+=) 18.Qc2+/– ½–½. Benko,Pal – Petrosian,Tigran, Palma de Mallorca, 1968. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5)

8.b5 a4 9.a3 Nbd7 10.d4 ed4 11.ed4 Re8 12.0-0 Ne4 (12...d5 13.Re1=) 13.Qc2 Ndf6 14.Nbd2 d5 15.Bd3 c6 16.Be4 (16.bc6!? bc6 17.Rfe1=) 16...Ne4 17.Ne4 (17.bc6 bc6 18.Ne4 Bf5=+) 17...Re4 (17...de4!? 18.Nd2 Bf5-/+) 18.cd5 cd5 19.Rfe1 (19.Rac1 Bf5=+) 19...Bf5-/+ 20.Re4 de4 21.Ne5 e3 22.Qe2 (22.fe3 Bc2 Discovered attack) 22...ef2 23.Qf2 Qd5 0–1. GuestBFQC – GuestVBBT, freechess.org, 2017.

8.b5 Ne8 9.Qb3 a4 10.Qc2 f5 11.c5 Be6 12.Na3 Nd7 13.cd6 cd6 14.0-0 g5 15.Nd2 g4 16.f4 gf3 17.Nf3 Kh8 18.e4 Nc5 (18...Kg8!?=) 19.Ne5+= Nb3 20.ab3 ab3 21.Qd1 de5 22.ef5 Rf5 23.Rf5 Bf5 24.Qb3 Qb6 25.Kh1 Qe3 Black intends e4 26.Qd1 e4 27.Bg7 Ng7 28.Nc4 (28.Nc2 Ra1 29.Qa1 Qe2+/–) 28...Ra1+= 29.Qa1 Qe2 30.Qa8 Ne8 31.Qe8 Kg7 32.Qe5 (32.Qe7!? Kg8 33.Qd8 Kf7 34.Qc7 Kf6 35.Qb6 Kg5 36.de4 Be4 37.Qe3 Qe3 38.Ne3+=) 32...Kg6= 33.h3 ed3 34.Ne3 Bh3? (34...Bc8!?+=) 35.Qg3 (35.gh3 h5+–) 35...Kf7 (better is 35...Bg4!? 36.Qg4 Qg4 37.Ng4 Kf5+/–) 36.Qh3 d2 37.Qh7 Kf8 1–0. Espig,Lutz (2430) – Radosavljevic,Slobodan D (2320), HUN–ch op Eger, 1987. (=1.Nf3 Nf6 2.c4 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.e3 d6 7.Be2 e5 8.d3)

8.a3 Na6

9.0-0 Bg4 10.h3 Bd7 11.Qb3 c6 12.Nc3 Re8 Black plans e4 13.Rfd1 ab4 14.ab4 Qb6 15.Ba3 e4 16.de4 Nc5 17.Qc2 Nce4 18.Ne4 Ne4 19.c5 Qd8 (19...dc5 20.bc5 Qc7 21.Bb2 Bb2 22.Ra8 Ra8 23.Qe4+=) 20.Bb2+= Ra1 21.Ba1 (worse is 21.Ra1 Bb2 22.Qb2 dc5 23.bc5 Nc5+=) 21...Ba1 22.Ra1 dc5 23.bc5 Qe7 24.Rc1 Bf5 25.Nd4 Bh3 26.gh3 Nf2 27.Kf2 Qe3 28.Kg2 Qd4 29.Bf3 Re5 30.Kh1 Re3 31.Bg2 Qe5 (31...Re5 32.Qc3 Qc3 33.Rc3=) 32.Qc4 h5 33.Rf1 Qe7 34.Rc1 Re2 35.Rf1 Re5 (35...Re3 36.Qb4+=) 36.Rc1 Re1 37.Re1 Qe1 38.Kh2 Qe5 39.Kg1 Qb2 40.Qf4 Kg7 41.Qe3 Qf6 42.Kh2 g5 43.Kg1 Qa1 ½–½. Espig,Lutz – Tal,Mikhail, Dubna, 1973. (=1.Nf3 Nf6 2.c4 g6 3.b4 d6 4.Bb2 e5 5.e3 Bg7 6.Be2 0-0 7.d3 a5)

9.Nbd2 Be6 10.Bc3 Nh5 11.d4 ab4 12.ab4 ed4 13.Nd4 Qe7 14.Bh5 gh5 15.Qh5 Nb4 16.0-0 Nd3 17.Ne4 Ne5 18.f4 Nc4 19.Rae1 f6 20.Ng3 Ra2 21.e4 Qf7 22.Ne6 Qe6 23.Nf5 Qf7 24.Qg4 Kh8 25.Rf3 Rg8 26.Rg3 Raa8 27.Qh4 Raf8 28.Rh3 Qg6 29.Ne7 1–0. Loseries – Huettig, 1994.

8.a3 ab4 9.ab4 Ra1

10.Ba1 Na6 11.Qb3 c6 12.0-0 Qb6 13.Bc3 e4 14.Ne1 d5 15.Nd2 Re8 16.c5 Qd8 17.de4 de4 18.Nc4 Bf8 19.Nb6 Be6+= 20.Qb2 Nd7 21.Nd7 Qd7 22.f3 Qd5 23.Rf2 ef3 24.gf3 Bh6+= 25.Ng2 Qb3 26.Qd2 Bg7 27.Bg7 Kg7 28.Qd4 f6 29.Ba6 ba6 30.Rb2 Rd8 31.Qd8 Qb2 32.Qc7 Bf7= 33.Qc6 Qb4 34.Qc8 a5 35.c6 a4 36.c7 Qb1 37.Kf2 a3 38.Qd8 Qc2 39.Kg3 a2 40.c8Q Qc8 41.Qc8 a1Q 42.Qc7 g5 43.h4 h6 44.hg5 hg5 45.f4 Qf1 46.Qd7 Kg6 47.e4 Kg7 48.Qd4 Qc1 49.fg5 Qg5 50.Kf2 Bg6 51.Qd7 Kh6 52.Qd5 Qg4 53.Qd8 Qe4 54.Qf6 ½–½. pierre – luzpinto, internet, 2006.

10.Ba1 Na6 11.Qb3 c6 12.Nbd2 b5 13.0-0 Qb6 14.Bc3 Bd7 (14...bc4 15.Nc4 (worse 15.Qc4 Be6 16.Qh4 Nd5=+) 15...Qb8 16.Rb1=) 15.Rb1 (15.Ra1 c5 16.bc5 Nc5+=) 15...Qb8 (15...Bg4 16.Ra1+=) 16.Qa3 (16.Ra1 bc4 17.Qc4 Nc7=) 16...Nc7 17.Ra1 Ne6 (17...bc4 18.dc4 (18.Nc4? Nb5 19.Qb3 Nc3 20.Qc3 e4–+) 18...Ne6 19.Bd3+=) 18.Nb3 (18.c5 Nd5 19.cd6 Nc3 20.Qc3=) 18...c5 (18...bc4!? 19.dc4 Ne4=) 19.bc5+– bc4 20.dc4 Ne4 21.Be1 (21.Bb4!? dc5 22.Nc5 N6c5 23.Bc5 Nc5 24.Qc5+=) 21...N4c5= 22.Nc5 dc5 (22...Nc5 23.Bb4=) 23.Bc3 ½–½. Kovacevic,Blazimir (2485) – Jankovic,Alojzije (2560), CRO Ch, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.a3 ab4 9.ab4 Ra1)

10.Ba1 Na6 11.Qb3 e4 12.de4 Ne4 13.Bg7 Kg7 14.Nc3 Nc3 15.Qc3 Qf6 16.Kd2 c6 17.Rd1 Rd8 18.Qf6 Kf6 19.Kc3 Ke7 20.Ra1 Bg4 21.h3 Bf3 22.Bf3 Kd7 23.h4 Nc7 24.Ra7 Kc8 25.Ra5 White prepares the advance b5 25...Kd7 26.b5 Ra8 27.Kb4 f5 28.g3 Ra5 29.Ka5 Ne6 30.Kb6 Nd8 31.Bg2 d5 32.cd5 cb5 33.Kb5 Nf7 34.Kc5 Ne5 35.f4 b6 36.Kb6 Nc4 37.Kc5 Ne3 38.Bh3 Nd1 39.Bf1 Nf2 40.Bg2 Ng4 41.d6 Nf6 42.Bf3 h6 43.Bc6 Ke6 44.Bg2 (44.h5 gh5 45.d7 Ke7+–) 44...Kd7+/– 45.Bc6 Ke6 46.Bg2 Kd7 47.Bd5 Nh5 48.Bc6 Ke6? (better is 48...Kd8+/–) 49.Bf3 Nf6 50.Kc6 Kf7 51.Kc7?? (better is 51.h5 g5 52.Bd5 Ke8 53.fg5 hg5 54.h6+–) 51...Ne8= 52.Kd7 Nf6 53.Kc6 h5 54.Bg2 Ke6 55.Bf1 Kf7 56.Bc4 Kf8 57.Be6 Ke8 58.Kc7 (58.Kc7 Kf8 59.d7 Nd7 60.Kd7+–) 1–0. Lenic,Luka (2635) – Jones,Gawain C B (2635), Arvier ITA, Team Ch (m), 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5)

10.Ba1 Nbd7 11.0-0 b6 12.Nc3 Bb7 13.Qb3 Qe7 14.Nd2 h5 15.Bb2 Bh6 16.Bf3 Bf3 17.Nf3 Ra8 18.Rd1 Bg7 19.h3 Nf8 20.Ra1 Qd8 21.Ra3 Ne6 22.Qa2 Ra3 23.Qa3 g5 24.Ne2 g4 25.hg4 hg4 26.Nh4 Nh5 27.Nf5 Qg5 28.Qa8 Kh7 29.Nfg3 Ng3 30.Ng3 Qg6 31.Qe4 Qe4 32.de4 Bf8 33.Kf1 Kg6 34.Ke2 Ng7 35.Kd3 Be7 36.Ne2 Bh4 37.g3 Bd8 38.Nc3 Ne6 39.Ba3 Ng5 40.Bc1 Nh3 41.Nd1 Ng5 42.Bd2 Kf6 43.Nc3 Ke6 44.Nb1 Nh3 45.Be1 Ng5 46.Nc3 Kd7 47.Nd5 Be7 ½–½. Csom,Istvan (2510) – Brondum,Eric (2315), Politiken Cup, 1980. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5)

10.Ba1 Nbd7 11.0-0 Qe7 12.Nc3 c6 13.Nd2 d5 14.cd5 cd5 15.Nb5 (15.Qb3 Nb6=) 15...Qb4+= 16.d4 ed4 17.Bd4 b6 18.Bc3 (18.Qc2 Ba6 19.Rb1 Qe7=) 18...Qe7+= 19.Qa1 Nc5 20.Bd4 Bf5 21.Rc1 Rc8 22.Bf3 Qe6 23.h3 Bd3 24.Nc3 The isolani on d5 becomes a target 24...Nce4 25.Rd1 (better is 25.Qb2-/+) 25...Ne8?? (better is 25...Bc2 26.Be4 Bd1 (worse is 26...Ne4 27.Nde4 Bd4 28.Rd4 Be4 29.Ne4 de4 30.Rb4+=; 26...Be4?! 27.Nce4 de4 28.Ne4 Ne4 29.Bg7=) 27.Bg6 fg6 28.Qd1 Ne8-/+) 26.Bg7 Ng7 (26...Kg7?? 27.Nde4 Qe5 28.Bg4+–) 27.Nd5 Ng5? (27...Qd5 28.Ne4 Qb3 29.Nf6 Kh8 30.Bb7+–) 28.Nf6?? (better is 28.Nf4 Qd6 29.Ne4 (29.Nd3?! Qd3 30.Bg4 N5e6+=) 29...Nf3 30.gf3+–) 28...Kh8+/– 29.Bg4 Bf5 30.Nf3 (30.Bf5 Qf5 31.Nc4 Rf8+–) 30...Ne4 31.Bf5 Qf5 (31...gf5 32.Nd5+/–) 32.Nd5 (better is 32.Ne4!? Qe4 33.Qf6+/–) 32...Qe6+= 33.Nf4 Qb3 34.Qd4 Qc2 1–0. Majzik,L (2280) – Szeberenyi,A (2230), Tapolca Open, Budapest HUN, 1999. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.c4 e5 7.d3 a5)

10.Ba1 Bf5 11.Qb3 h6 12.0-0 Nbd7 13.Nbd2 Re8 14.Bc3 e4 15.de4 Ne4 16.Bg7 Kg7 17.Ne4 Be4 (worse is 17...Re4 18.Bd3 Re8 19.Bf5 gf5 20.Nd4+/–) 18.Nd2 Bf5 19.Bf3 b6 20.Bc6 Qe7 21.Ra1 Rc8 22.Bd7 Bd7 23.b5 Qe5 24.Ra7 Be6 25.f4 Qf5 26.Nf3 Kh7 27.Nd4 Qc5 28.Ra4 Re8 29.Kf2 Bf5 30.Nf5 ½–½. Zeven,Frank (1895) – Van der Meer,Kees (2035), Leiden NED, 7th LCT Open, 2013.

8.a3 e4

9.Nd4 ab4 10.ab4 Ra1 11.Ba1 Na6 12.Nc2 ed3 13.Bd3=.

9.Nd4 c5 10.Nb5 ab4 11.ab4 Ra1 12.Ba1 ed3 13.Qd3=.

9.Nd4 ed3 10.Qd3 Na6 (10...ab4 11.ab4 Ra1 12.Ba1 Na6 13.Qb3= 0.00) 11.Qb3 (11.Qd1 Qe7 12.0-0 ab4 13.ab4= 0.06) 11...Bg4 (11...ab4 12.ab4 c5 13.bc5= 0.09) 12.0-0 (12.Bg4 Ng4 13.0-0= 0.16) 12...c5 (12...Be2 13.Ne2= 0.09) 13.bc5 (13.Bg4= 0.19) 13...Nc5 14.Qc2 Be2 15.Ne2 (15.Qe2 Rc8=) 15...Qb6 16.Nd2 Rac8 17.Rab1 Qa6 (17...Qc6 18.Bd4+=) 18.Nf4 Ncd7 19.Qb3 g5 (19...a4 20.Qb4 Ne5 21.Bd4+=) 20.Bf6 Nf6 21.Nd3 d5 22.cd5 Rfd8 23.Nf3 (23.Rfc1 Rc1 24.Rc1 (worse is 24.Nc1 a4 25.Qb7 Qb7 26.Rb7 Nd5+=) 24...Rd5 25.Rc8 Bf8 26.Rc3+=) 23...Rd5 24.Nd4 Rcd8 25.Rfd1 Ne4 26.Ne1 (26.Qb7? Qb7 27.Rb7 Bd4 28.ed4 Rd4–+) 26...Bd4 27.ed4 (worse is 27.Rd4 Nd2 28.Qb5 Rb5 (worse is 28...Qb5 29.Rb5 Rd4 30.Rg5 Kf8 31.ed4+=) 29.Rd8 Kg7 30.Rb5 Qb5 31.Rd2 Qc4–+) 27...Rd4 28.Rd4 Rd4 29.Qe3 Qf6 ½–½. Panno,Oscar – Kavalek,Lubomir, Eksjoe, 1973. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d3 e5 7.Be2 a5 8.a3 e4)

9.Nd4 ed3 10.Bd3 ab4 11.ab4 Ra1 12.Ba1 Ng4 (12...Na6 13.Nc2-/+) 13.Be2+= Qh4 14.g3 Qh3 15.Bf1 Qh5 16.Bg2 Qh6 (16...Na6!? 17.Bc3 Qh6+=) 17.Nc3= Re8 18.Nd5 c6 19.Nf4 Ne5 (worse is 19...Nh2 20.Kd2 c5 21.Nde2 Ba1 22.Qa1+=) 20.0-0 g5 21.Nd3 Nc4 22.e4 Qg6 23.Qc2 Ne5 24.Ne5 Be5 (worse is 24...Re5 25.Nf5 Rf5 26.ef5 Bf5 27.Qa4+/–; worse is 24...de5 25.Nf5=) 25.f4 (25.Rd1 Na6 26.Bc3 Bg4+=) 25...gf4+= 26.gf4 Bf6 27.Kh1 Kh8 (27...Bg4 28.Qd3+=) 28.Bc3 (28.Rg1 Rg8+=) 28...Rg8 29.e5 Qc2 (29...de5 30.Qg6 fg6 31.Nf3+=) 30.Nc2 Bg7 31.Ne3 b5 32.Rd1 de5 33.fe5 Re8 34.h3 (34.Bd4 Bd7+=) 34...Kg8 (34...h5 35.Bf3+=) 35.Rg1= Kf8 36.Bd4 Nd7 Increasing the pressure on the isolated pawn on e5 37.Bc6 Be5 38.Nc2 (38.Nf5 Re6 39.Bf3 Rf6+=) 38...Re6 39.Bg2 Rd6 40.Rd1 Ke7 41.Bf3 Ke6 42.Kg1 f5 43.Bf2 Rd1 44.Bd1 Bc3 45.Bd4 Bd2 46.Be2 ½–½. Trokenheim,Marek (1815) – Berti,Massimiliano (1835), FICGS, 2009.

9.Nd4 ed3 10.Bd3 c5 11.Nb3 ab4 12.ab4 Ra1 13.Ba1=.

9.Nd4 Qe7 10.0-0 (10.de4) 10...ab4 11.ab4 Ra1 12.Ba1 Na6 13.Nc2=.

9.de4 Ne4

10.0-0?? Bb2–+ 11.Ra2 Bg7 12.Qc2 (12.Qc2 Re8 13.Bd3–+). Goldmund,Heike – Niglio,Biagio, FICGS, 2015.

10.Bg7 Kg7

11.b5 Qf6 12.Qd4 Nd7 13.0-0 Ndc5 14.Nfd2 Nd2 15.Nd2 Bf5 16.Qf6 Kf6 17.Nf3 b6 18.Nd4 Be4 19.Bf3 Rae8 20.Be4 Re4 21.Ra2 Kg7 22.g3 f5 23.Rc2 g5 24.Nf3 h6 25.Nd2 Re6 26.Rc3 f4 27.ef4 gf4 28.g4 Rg6 29.f3 Re6 30.Nb3 Nb3 31.Rb3 Rfe8 32.Rd3 Re3 33.Rfd1 a4 34.R1d2 R8e5 35.Kf2 Kf6 36.h4 Ke6 37.Rd4 Ra3 38.Rf4 Rc3 39.Kg3 a3 40.Rf8 Ke7 41.Rf4 Rb3 42.Ra2 Re1 43.Rd4 Kf6 44.Rdd2 Ree3 45.Rf2 h5 46.gh5 Re5 47.Kg4 Rc5 48.Rfc2 d5 49.cd5 Rc2 50.Rc2 Rb5 51.Rc6 Ke7 52.Rc7 Kd6 53.Rc2 Ra5 54.Ra2 b5 55.h6 b4 56.h7 Ra8 57.Kf5 0–1. Hammer – Gruenfeld, Biel 1981.

11.Qd4 Nf6 12.Nbd2 (12.b5!?+=) 12...Nc6+= 13.Qb2 ab4 14.ab4 Ra1 15.Qa1 Nb4 16.0-0 Qe7 17.Nb1 Re8 18.Nc3 c5 19.Qb2 Kg8 20.Qd2 Bf5 21.Ra1 Ne4 22.Qc1 Qf6 23.Ne4 Be4 24.Ra7 b6 25.Nd2 Bc6 26.h3 d5 27.cd5 Bd5 28.Bc4 Re7 29.Re7 Qe7 30.Bb5 Qf6 31.Qa3 Bc6 32.Bc6 Qc6 33.Qa7 Qd5 34.Nf1 Qd6 35.Ng3 Kg7 36.Qa1 Qf6 37.Qf1 Qe5 38.Qb5 Qa1 39.Kh2 Qf6 40.Kg1 Nd5 41.Qc4 Qa1 42.Kh2 Qe5 43.Qb3 Qd6 44.Qc4 Nf6 45.Kg1 Qd5 46.Qb5 c4 (46...c4 47.Qb2 Qd3–+) 0–1. Boyd,John M (1890) – Stilman,Eduardo (2050), SA–2009–0-00105, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.a3 e4)

11.Qd4 Qf6

12.b5 Nd7 13.0-0 Ndc5 14.Ra2 Re8 15.Rd1 b6 16.Qf6 Kf6 17.Nfd2 Bb7 18.Ne4 Be4 19.Nc3 Rad8 20.Bf3 Bf3= 21.gf3 Rc8 22.Nd5 Ke6 23.Kg2 Rf8 24.Rad2 f5 25.Rd4 Rf7 26.f4 Ne4 27.f3+= Nf6 28.Kf2 Kd7 29.R4d2 Re8= 30.h4 Kc8 31.Re1 Nh5 32.Rb1 Kb7 33.Rc2 Rc8 34.Rcb2 Nf6= 35.Ke2 Nd7 36.Rd2 Nc5 37.Re1 Na4 38.Rc1 Ka8 39.Nc3 Nc3= 40.Rc3 Re7 41.Rcd3 Re6 42.Kf2 Kb7 43.a4 Rd8 44.Rc2 Kc8 45.Rc1 Rde8 46.Rc2 R8e7 47.Rc1 Rd7 48.Rc2 Kd8 49.Rc1 Ke7 50.Rh1 Kf6 51.Rc1 Ree7 52.Rcd1 Rd8 53.Rc1 Rc8 54.Rh1 Rd7 (54...Re6 55.Re1=) ½–½. Saradjen,Janko (2150) – Sher,Miron N (2500), Bled op, 1993.

12.b5 Nd7 13.0-0 Re8 14.Re1=.

12.b5 Nd7 13.Nbd2 Nc3 14.Bd3 Nc5 15.Bc2 Bf5 16.Bf5 gf5 17.Nh4 f4 18.Nf5 Kg6 19.Ne7 Qe7 20.Qc3 fe3 21.fe3 Rae8 22.Qc2 f5 23.0-0 Qe3 24.Kh1 Qd3 25.Qc1 f4 26.a4 Re2 27.Nf3 Qc2 28.Qc2 Rc2 29.Rae1 Rc4 30.g3 Re4 31.Rd1? Na4 32.gf4 Rff4 33.Rg1 Rg4 34.Nh4 Kg5 35.Ng2 Kh6 36.Rgf1 Nb6 37.Rd3 Nc4 38.Rf7 Rd4 39.Rd4 Rd4 40.Nf4 Ne5 41.Rf8 0–1. Pedersen,Erik (2400) – Mortensen,Erling (2445), Arhus DEN–chT, 2000.

12.b5 Nd7 13.Qf6 Ndf6 14.Nbd2 Be6=.

12.Nbd2 Nc3 13.b5 Qd4 14.Nd4 (worse is 14.ed4 Re8 15.Ng1 Bg4=) 14...Nd7 15.Rc1 Ne2 16.Ke2 b6 17.Rhd1 Bb7 18.N2f3 Rae8 19.Kf1 Ne5 20.Ne5 Re5 21.Ne2 g5 22.Nc3 Rc5 23.Na4 Re5 24.Nc3 Rc5 25.Rd4 Re8 26.Na4 Rce5 27.Rcd1 f5 28.Nc3 Rc5 29.Na4 Rce5 30.Nc3 Kf6 31.Rc1 Rc5 32.Na4 Rce5 33.Nc3 Rc5 34.Rcd1 Rce5 35.Rc1 Rc5 36.Rcd1 ½–½. Csom,Istvan – Mortensen,Erling, Esbjerg, 1980. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.a3 e4)

12.Nbd2 Nc3 13.b5 Qd4 14.Nd4 Ne2 15.Ke2 Re8 16.f3 f5 17.h4 Nd7 18.h5 Nf6 19.hg6 hg6 20.b6 c6 21.c5 (better is 21.Rab1!?+=) 21...dc5+= 22.N4b3 Ra6 23.Nc5 Rb6 24.Nc4 Rb5 25.Nd3 Rd5 26.Rab1 f4 27.Nf4 Rd4 28.Rbc1 Rf4 29.Nd6 Re6 30.Nc8 Ra4 31.Rc3 Nd5 32.Rb3 b5 33.e4 b4 34.Kf2 Nc3 35.ab4 ab4 36.Nb6 Ra2 37.Kg3 c5 38.Nd7 Ra7?? (better is 38...Rc6-/+) 39.Nc5+/– Re5 40.Nd3 Rg5 41.Kf4 Rg2 42.Nb4 Ne2 43.Ke3 Ra4 (better is 43...g5!?+/–) 44.Nd5+– (44.Nd5 Ra6 45.Rhb1+–) 1–0. Panocki,Adrian (2270) – Gumula,Daniel (2385), Poland–chT U20 Szklarska Poreba, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 e5 6.d3 a5 7.a3 0-0 8.Be2 e4 9.de4 Ne4 10.Bg7 Kg7 11.Qd4 Qf6)

12.Nbd2 Nc3 13.Rc1 ab4 14.ab4 Ne2 15.Ke2 (15.Qf6 Kf6 16.Ke2 Bg4=) 15...Re8 (15...Bf5 16.Qf6 Kf6 17.c5=) 16.Ra1 Ra1 17.Ra1 Na6 18.Rb1 (18.Ra4 Bf5 19.Qf6 Kf6+=) 18...Bf5= 19.Rb3 c5 (19...g5 20.Qf6 Kf6 21.Nd4=) 20.bc5 Nc5 21.Ra3 (21.Rb6 Bd3 22.Ke1 Qd4 23.Nd4 Ra8=) 21...h6 (21...h5 22.Qf6 Kf6 23.h4=) 22.Qf6 Kf6 23.Nd4 Be6 24.f3 (24.Ra5 Rc8=) 24...d5 25.cd5 Bd5 26.e4 Ne6 (26...b6 27.Ke3=) 27.Ke3 Nd4 28.Kd4 Bc6 29.Ra5 (29.Nb3 Rd8 30.Ke3 Rd1=) 29...Rd8 30.Ke3 Rd7 (30...Ke7 31.Ra7=) 31.g4 (31.Nb3 b6 32.Ra2 Bb5=) 31...Rc7 (31...b5 32.Ra6 Rc7 33.h4=) 32.Rc5 (32.Nb3 Bd7 33.e5 Ke7=) 32...b6= 33.Rc1 Rc8 34.h4 g5 35.h5 Ke7 36.f4 f6 37.f5 Bd7 (37...Bb7 38.Rc8 Bc8 39.Nc4=) 38.Rc8 Bc8 39.Nb1 ½–½. pcmvr (1700) – agmac, net–chess.com, 2006.

12.Nbd2 Nc3 13.Qf6 Kf6 14.b5 Nd7 15.Rc1 Ne2 16.Ke2 Nc5 17.Nd4 b6 18.N4b3 Bb7 19.Nc5 dc5 20.f3 Rad8 21.Rc3 Rd6 22.Rd3 Rfd8 23.Rd6 cd6 24.e4 Ke5 25.Kd3 f5 26.Re1 Kf6 27.g3 Re8 28.Re3 Re6 29.f4 h6 30.h3 Re7 31.Re2 Bc8 32.Rh2 Kf7 33.g4 Kg7 34.ef5 gf5 35.Rg2 White prepares g5 35...fg4 36.hg4 Re1 37.Rg3 Be6 38.f5 Bf7 39.g5 (better is 39.Kc3!? d5 40.cd5 Bd5 41.Rd3+=) 39...hg5-/+ 40.Rg5 Kf6 41.Rg3 Kf5 42.Rf3 Ke6 43.Rg3 Ke7 44.Kc3 Re6 45.Nf1 Re4 46.Ne3 Rf4 47.Rh3 Kf6 48.Rg3 Be6 49.Kd3 Rd4 50.Kc3 Ke5 51.Rg6 Rh4 52.Kd3 Rh3 53.Kd2 Rh2 54.Kc3 Re2 55.Nd5? (55.Re6 Ke6 56.Nd5 Ke5-/+) 55...Bd5 (better is 55...Bf5!? 56.Rg5 a4 57.Rf5 Kf5 58.Nb6 Ra2–+) 56.Rg5-/+ Ke6 57.Rd5 Re3 58.Kb2 a4 59.Rh5 Rb3 60.Ka2 Rc3 61.Rh4 Ke5 0–1. Sloth,Jorn (2375) – Mortensen,Erling (2440), DEN–ch Denmark, 1987. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.a3 e4)

12.Nbd2 Re8 13.Ne4+=.

12.Qf6 Nf6=.

12.Qf6 Kf6

13.b5 Nd7 14.Nd4 Nb6 (14...Re8 15.Ra2=) 15.Nd2+= Nc5 16.0-0 Be6 17.Rac1 Ke7 18.Bf3 f5 ½–½. Petrosian,Tigran – Kavalek,Lubomir, Skopje, 1972.

13.b5 Nd7 14.Nd4 Nb6 15.Nd2+= Nc5 16.0-0 Be6 17.Rac1 Rfe8 18.Rfd1 Nba4 19.Rc2 Bf5 20.Nf5 Kf5 21.Nf1 (21.Bf3 Re7=) 21...h5 22.Ng3 Kf6 23.Bf3 Nb6 24.Ne2 Re5 (24...Re7 25.Nf4=) 25.Nf4+= Rae8 26.h4 Kg7 27.g3 (27.Kf1 Kf6+=) 27...Rb8 (27...Kf6 28.Nd3 Nd3 29.Rd3+=) 28.Kf1 Ree8 (28...a4 29.Ke2+=) 29.Nd3 Nd3 30.Rd3 Na4 31.Ke2 Nc5 32.Rd1 b6 (32...Rbd8 33.Rcd2+=) 33.Bc6+/- Re7 34.f3 f5 35.Rcd2 Rf8 36.Kf2 Kf6 37.Rd5 Rg8 38.Re1 Reg7 39.Rd4 (39.Rh1 g5 40.hg5 Rg5+=) 39...Ne6 (39...g5 40.hg5 Rg5 41.Rg1+=) 40.Rdd1 ½-½. Markus,Roland (2355) - Kerr,Stephen (2300), IECG, 2001.

13.b5 Nd7 14.Nd4 Re8 15.Nd2=.

13.b5 Be6 14.Nfd2 Nd2 15.Kd2 (15.Nd2 Nd7+=) 15...Nd7= 16.Nc3 Kg7 (16...Nb6 17.Ne4 Ke7 18.c5 dc5 19.Nc5+=) 17.Nd5 Rac8 (17...c6 18.Nf4+=) 18.Kc3 (18.Rab1 Nc5+=) 18...c6= 19.bc6 bc6 20.Nf4 Nc5 21.Bd3 (21.Bf3 g5 22.Ne6 fe6=) 21...Kf6 (21...d5 22.Ne6 fe6 23.f3=) 22.Bc2 Rb8 23.Rhd1 (23.Rab1 Rfe8=) 23...Ke7 24.Rab1 f5 25.f3 (25.Kd4 g5 26.Ne6 Ke6=) 25…Rfe8 ½–½. pcmvr (2775) – borisfalcov (2720), net–chess.com, 2008.

13.Bd3 Bf5 14.b5 (14.Be4 Be4 15.b5 Bf3 16.gf3 Nd7=) 14...Nd7 (better is 14...Nf2!? 15.Kf2 Bd3-/+) 15.Be4 Be4 16.Nc3 Nc5 (16...Bf3 17.gf3 Rac8 18.Ke2=) 17.Rd1 (17.Nd2 Bg2 18.Rg1 Bh3 19.Nd5 Kg7 20.Nc7 Rac8+=) 17...Kg7 (17...Bf3 18.gf3 Ke6 19.Nd5=) 18.Ke2+= Rfe8 (18...Bc2 19.Rd4+=) 19.Rd4 (19.b6 Bc2 20.Rd4 c6+=) 19...Rad8 20.Ne4 (20.b6 cb6 21.Rhd1 Bc2=) 20...Ne4= 21.g4 b6 (21...c5 22.Rd3=) 22.h4+= Re7 23.Nd2 Nc5 24.Nb1 Na4 (24...Re5 25.Nc3+=) 25.Kd2+=. pcmvr (2845) – bryanotb (2630), net–chess.com, 2009.

8.a3 Re8

9.0-0 e4 10.Ne1 (10.de4 Ne4 11.Bg7 Kg7 12.Qd4 Qf6 13.Qf6 Kf6=) 10...d5 (10...Be6 11.Nd2=) 11.cd5 Nd5 (11...Bf5 12.de4 Be4 13.b5=) 12.Bg7+= Kg7 (12...ed3 13.Nd3 Kg7 14.b5=) 13.de4 Re4? (better is 13...Nf6 14.Nc3 Qd1 15.Rd1 c6+=) 14.Nc3!+– Re5 (14...Nc3 Exploits the pin 15.Qd8) 15.e4 (15.Nf3 Nc6 16.Ne5 Nc3 17.Nc6 Qf6+–) 15...ab4 16.Nd5 ba3 17.Qc2 (17.Qb3 Re4 18.Bf3 Re6+–) 17...c6 18.Nf3 Re8 19.Nb4 (19.Ne3 b5+–) 19...Qa5 (19...Bg4 20.Rfb1+–) 20.Rfb1 c5? (better is 20...Be6+–) 21.Nd5 Nc6 22.Nb6 Nb4 23.Qc3 Kg8 24.Na8 Qa8 25.Bb5 Re4 26.Qc5 Nc6 27.Ra3 (27.Ra3 Qb8 28.Bc6+–) 1–0. pierre (1970) – davetoner (1760), Chess.com, 2007.

9.Nbd2= Bf5 10.0-0 h6 11.Nb3 ab4 12.ab4 Nbd7 (12...Nc6 13.b5 Ra1 14.Ba1+=) 13.Na5 (13.Qc2 Ra1 14.Ra1 e4 15.de4 Be4+= (15...Re4? 16.Bd3+–)) 13...Qc8= 14.Nd2 c6 15.Nab3 Qc7 16.e4 Be6 17.Qc2 Nf8 (17...Nb6 18.Na5=) 18.Ra8 Ra8 19.Ra1 Ra1 20.Ba1 Bc8 21.d4 ed4 22.Nd4 Qb6 23.Bc3 Ne6 24.Ne6 Be6 25.Qb2 Ng4 26.Bg4 Bc3 27.Qc3 Bg4 28.c5 dc5 29.bc5 Qb5 30.f3 Be6 31.Qd4 Qe2 32.h3 h5 ½–½. Lee,GD (2245) – MacQueen,C (2245), 4NCL, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5)

8.b5 b6

9.0-0 Bb7 10.Nc3 Nbd7 11.Qc2 Ng4 (11...Nc5 12.Ng5=) 12.h3 Nh6 (12...Ngf6 13.Ng5+=) 13.d4 (13.e4 Nc5+/–) 13...f6 (13...Nf5!? 14.Nd5 ed4+=) 14.Rad1 Qe7 (14...Nf5 15.Rfe1+/–) 15.Ba3 (15.Nd5 Bd5 16.cd5 e4+/–) 15...Rfd8 (15...Nf5+/–) 16.Na4 White intends c5 (better is 16.Nd5!? Bd5 17.cd5+/–) 16...Bf8 (16...e4 17.Nd2+/–) 17.c5 (17.Qb3!? Qf7 18.Nc3+/–) 17...dc5= 18.dc5 bc5 (18...Nc5 19.Bc4 Kh8 20.Nd2+=) 19.Rc1 (better is 19.Nd2+=) 19...c6?? (better is 19...Kg7+=) 20.Nc5+– Nc5 21.Bc5 (21.Qc5?! Qc5 22.Bc5 cb5 23.Bb5 Bc5 24.Rc5 Rac8=) 21...Qc5 22.Qb3 (22.Qc5?! Bc5 23.bc6 Bc6 24.Rc5 Be4+=) 22...Kh8 (22...Qd5 23.Bc4 cb5 24.Qb5 Nf7 25.Bd5 Bd5+–) 23.Rc5 (23.Rc5 Bc5 24.Rc1+–) 1–0. Jeric,S (2335) – Gomboc,M (2110), 10th Open, Ljubljana SLO, 1999. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5)

9.0-0 Qe7 10.b5=.

9.Nbd2 Bb7 10.Qc2 Nbd7 11.0-0 Qe7 12.Rfe1 Rae8 13.Rad1 Nh5 14.Nb1 f5 15.Nc3 Nhf6 16.Ba3 e4 17.de4 Ne4 18.Ne4 fe4 19.Nd4 Ne5 20.Rf1 Nf3 21.Nf3 ef3 22.Bd3?? fg2 23.Rfe1 Be5 24.e4 Qh4 25.Kg2 Qh2 26.Kf1 Bd4 27.Rd2 Bc8 28.Bb2 Bh3 29.Ke2 Bg4 30.Kf1 Qh1# 0–1. Poley,Vladimir (2410) – Nielsen,Peter Heine (2515), Viking op Aaland–Stockholm, 1997.

8.b5 Nbd7

9.0-0 a4 10.a3 Nc5 11.Nc3 Re8 12.d4 ed4 13.Nd4 Bd7 14.Bf3 Nfe4 15.Qc2 Ng5 16.Bd5 Qe7 17.Rab1 Ra7 18.Rbd1 Nb3 19.Nce2 Nc5 20.Ng3 Nge4 21.Ne4 Ne4 22.Ne2 Nc5 23.Bg7 Kg7 24.b6 cb6 25.Qb2 f6 26.Qb6 Ra6 27.Qb4 Bg4 28.Rd2 Qc7 29.Nd4 Rb6 30.Nb5 Qe7 31.h3 Bd7 32.Rfd1 Nb3 33.Rd3 The isolani on d6 becomes a target 33...Bf5 34.e4 (34.Qa4 A) worse is 34...Bd3 35.Qb3 (worse is 35.Rd3 Nc5 36.Qd1 Nd3 37.Qd3 Qe5-/+) 35...Bf5 36.Qc3+=; B) 34...Nc5 35.Qc2 Bd3 36.Rd3 Nd3 37.Qd3 Qe5–+) 34...Bd7 (34...Be4? 35.Re3 Nc5 36.f3+–) 35.Re3 Nc5 ½–½. Fournier,Frederic (2380) – Dartayet,Gustavo (2515), Chess.com (Master tournament), 2009.

9.0-0 a4 10.a3 Nc5 11.Nc3 Re8 12.d4 ed4 13.Nd4 Nfe4 14.Ne4 Ne4 15.Qc2 Nc5 16.Rad1 h5 17.Bc3 Qe7 18.h3 Ne4 19.Bb2 Ng5 20.Rfe1 Bd7 21.Bf1 c5 22.Ne2 Bf5 23.Qc1 Bb2 24.Qb2 Bh3 25.gh3 Nf3 26.Kh1 Ne1 27.Re1 Qe4 28.Bg2 Qc4 29.Nf4 Re5 (29...Qf4 30.ef4 Re1 31.Kh2 Rae8+/–) 30.Bb7+/– Rb8 31.Rc1 (31.Bc6!?+/–) 31...Qb3+= 32.Qb3 ab3 33.Bc6 c4 34.Rc4 b2 35.Rb4 Rc5 36.Rb2 Rc6 37.Rb4 (37.bc6 Rb2 38.Nd5 Rc2= (38...Rf2? 39.c7 Rc2 40.Ne7 Kg7 41.c8Q Rc8 42.Nc8+–)) 37...Rc5 (better is 37...Rc2!? 38.Kg2 Ra2=) 38.a4+= d5 39.Kg2 Kf8 40.Rd4 The isolani on d5 becomes a target 40...Rd8 41.b6 Ke7 42.Nd3 Rc4 43.Nb2?? (43.Rc4 dc4 44.Nb4=) 43...Rc5 (better is 43...Rd4!? 44.ed4 Kd6-/+) 44.Nd3 Rc3?? (better is 44...Rc4=) 45.Nb4 Rc5 ½–½. Gubajdullin,A (2455) – Voitsekhovsky,S (2510), XXX Nezhmetdinov Mem, Kazan RUS, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 Nbd7)

9.0-0 a4 10.a3 Nc5 11.Nbd2 Re8 12.Qc2 Bf5 13.Rad1 c6 14.Qc3 cb5 15.d4 Nce4 16.Ne4 Ne4 17.Qb4 bc4 18.Bc4 Qb8 19.Bd5 ed4 20.Bd4 Nc5 21.Ng5 Be6 22.Qc3 Bd4 23.ed4 Bd5 24.dc5 Bb3 25.Rd6 h6 26.Nf3 Qc7 27.Ne5 Be6 28.Rc1 Rac8 29.Qd2 Qe7 30.Qd4 Bf5 31.f4 h5 32.h3 Qh4 33.Kh2 Red8 34.Rf1 Be6 35.Nf3 Qe7 36.Rd1 Re8 37.Re1 Qc7 38.Re5 Bb3 39.Ng5 Re5 40.Qe5 Bc2 41.Qd5 Re8 42.Qd4 Qc8 43.Rd7 Bb3 44.Ne4 Re4 45.Rd8 Re8 46.Rc8 Rc8 47.g4 hg4 48.hg4 Rc6 49.Kg3 Kf8 50.Qd8 Kg7 51.Kh4 Kh7 52.Qd4 Kg8 53.Kg3 Kf8 54.Qd8 Kg7 55.Kf3 Be6 56.f5 gf5 57.Qg5 Kf8 58.gf5 Bd5 59.Ke3 Ke8 60.Kd4 Bb3 61.Qf4 Kd7 62.Qb8 Rc7 63.Qa7 Kc8 64.Qa8 Kd7 65.f6 Kc6 66.Qe8 Rd7 67.Kc3 Be6 68.Kb4 Kc7 69.Ka4 Rd8 70.Qe7 Rd7 71.Qf8 Rd4 72.Ka5 Bd7 0–1. Anastasian – Gurevich, Glendale 1994.

9.0-0 Nc5 10.a4 Re8 11.Nbd2 Bf5 12.Nb3 b6 (12...e4 13.de4 Nb3 14.Qb3 Be4 15.Nd2=) 13.Nc5+= bc5 14.Nd2 Rb8 (14...Qe7 15.e4 Be6 16.Rb1=) 15.Nb3+/– c6 16.Bc3 Ra8 17.Qd2 cb5 18.cb5 c4 (better is 18...Nd5!? 19.Ba5 Qg5+/–) 19.Ba5+– (19.dc4?! Ne4 20.Qe1 Nc3 21.Qc3 Qb6+/–) 19...Ra5 20.Na5 cd3 21.Nc6 (21.Bd3 Ne4 22.Qb4 Ng3 23.Bf5 Nf1+–) 21...Ne4 (21...de2 22.Nd8 ef1Q 23.Kf1 Rd8 24.a5+–) 22.Qd3 (22.Nd8 Nd2 23.Rfd1 e4-/+) 22...Qg5 23.f4 ef4 24.ef4 Qh4 25.Nd4 (25.Rae1 Bc3 26.Rb1 Nd2 27.Qc3 Nb1+–) 25...Nc5 26.Nf5 gf5 27.Qc4?? (27.Qf3!? Ba1 28.Ra1+–) 27...Re4+/– 28.Qc2 Ba1?? (28...Bd4 29.Kh1 Ba1 30.Ra1 Qf2–+) 29.Ra1+= Qf4 30.Bf3 Rc4 31.Qd1 (31.Qf2 Rc1 32.Rc1 Qc1 33.Qf1 Qe3 34.Kh1 Na4=) 31...Qe3= 32.Kf1?? (better is 32.Kh1 Ra4 33.Rb1+=) 32...Ne4?? (32...Nb3 33.Ra2 Rc1 34.Qc1 Qc1 35.Kf2 Nc5–+) 33.Be4+/– Re4 (33...fe4 34.Qd6 Rc1 35.Rc1 Qc1 36.Ke2 Qc4 37.Ke3 Qb3 38.Kf4 Qa4 39.b6+–) 34.g3 Rd4 35.Qe2 Qc3 (better is 35...Qb3+/–) 36.Qe1 (36.Rd1 Ra4 37.Rd6 Re4 38.Rd8 Kg7+=) 36...Rd2 37.Rc1?? (37.Kg1 Qd4 38.Kf1 Rh2 39.Rd1 Rh1 40.Kg2 Qd1 41.Qh1 Qa4 42.Qf1-/+) 37…Qf3 (38.Qf2 Qf2) 0–1. Sternik,Ryszard – Rabij,Tomasz, Mragowo, 1990.

9.0-0 Nc5 10.Nc3 Re8=.

9.0-0 Nc5 10.Nfd2 Bf5 11.e4 Bd7 12.Nc3 Ne6 13.h3 c5 (13...Nf4 14.Bc1=) 14.a4 (14.Nf3 Re8=) 14...Bh6 15.Re1 Nd4 16.Nf1 (16.Nb3 Rc8=) 16...Be6 17.Ne3 b6 18.Ncd5 Nd5 19.cd5 (19.Nd5 Rc8=) 19...Bc8 20.Nc4 f5 21.Ra2 Rb8 22.Bd4 cd4 23.ef5 gf5 24.Bf3 Kh8 (24...Bb7 25.Kh2=) 25.Rc2 Rg8 (25...Bb7 26.g3=) 26.Na3 Bd7 27.Rc6 (27.Kh2 Qf6=) 27...Rg6 (27...Bc6 28.bc6 Bf4 29.Nb5-/+) 28.Qc2 (28.Bh5 Bc6 29.Bg6 Bd5 30.Bf5 Qg5=+) 28...Bg5 (28...Bc6 29.dc6 Qc7 30.Qe2-/+) 29.Nc4 (29.Rc4!?=) 29...Bc6=+ 30.bc6 Qc7 31.Rb1 Bd8 (31...Rgg8 32.Qb2=+) 32.Kh1 Rf6 33.Rb5 Qa7 34.Qe2 Qe7 (34...Bc7 35.Bh5 Rg8 36.f4=) 35.Qb2 Rf8 36.Na5 Ra8 37.Nc4 Ra4 38.Nb6 Bb6 39.Rb6 Ra7 40.Kh2 (40.Rb8 Rb8 41.Qb8 Kg7=+) 40...Qc7 41.Qb1 (41.Rb5 Kg7=+) 41...h6 42.Rb2 Rfa8 43.Bh5 Kh7 (43...Rg8 44.Qd1=+) 44.g3 (44.Qd1 Qg7=) 44...Rg8 (44...Qg7 45.Bf3=+) 45.Kg2 (45.Qd1 Kg7=) 45...Qd8 46.Bf3 Kg6 (46...Rc7 47.Qd1=+) 47.Rb5 (47.Kh2 Qc7=) 47...Qc7 48.Qb2 Rga8 49.Qb4 Rg8 50.Qb3 (50.Qb2 Kg7=+) 50...Rga8 51.h4 (51.Qb4!?=) 51...Kg7 52.Qb2 Kh7 53.Kh3 (53.h5 Kg8=+) 53...Rg8 (53...Kh8 54.Qd2 Qg7 55.Qb4=+) 54.Qb1 (54.Kh2 Rf8=+) 54...Qc8 (54...Kh8 55.Qd1=+) 55.h5 (55.Kh2 f4=+) 55...Kh8 56.Qb4 Qc7 ½–½. Panza – bulent_2010, ChessWorld.net, 2016.

9.0-0 Nc5 10.d4 ed4 11.ed4 Nfe4+=.

9.0-0 e4 10.Nd4 ed3 11.Bd3 Nc5 12.Nc3 Re8 13.Qc2 Bd7 14.Rac1 a4 15.Ba3 Qb8 16.Rfd1 Bg4 17.Re1 Qa7 18.h3 Nd3 19.Qd3 Be6 20.Red1 Nd7 21.Nd5 Rac8 22.b6 cb6 23.Nb5 Qa5 24.Bb4 Qa6 25.Ndc7 Ne5 26.Qf1 Bc4 27.Rc4 1–0. Stippekohl – Pioch, Wilmersdorf, 1981.

9.0-0 e4 10.Nd4 ed3 11.Bd3 Nc5 12.Nc3 Re8 13.Be2 h5 14.h3 Nfe4 15.Ne4 Ne4 16.Bf3 Qh4 17.Be4 Qe4 18.Rc1 b6 19.Qc2 Bb7 20.Qe4 Re4 21.Rfd1 Rae8 22.Rd2 f5 23.Ne2 Bh6 24.Rdc2 h4 25.Bd4 Kf7 26.Nc3 Rd4 27.ed4 Bc1 28.Rc1 Re7 29.f3 g5 30.c5 dc5 31.dc5 bc5 32.Na4 g4 33.Rc5 g3 34.Kf1 Kf6 35.Nc3 Rd7 36.Ke2 Re7 37.Kf1 Rd7 38.a4 Re7 39.Rc4 Kg5 40.Ne2 Bd5 41.Rc3 Kf6 42.Nd4 Rd7 43.Ke2 Ke5 44.Nc2 f4 45.Ne1 Kd4 46.Kd2 Bc4 (46...Re7!? 47.Nd3 Re2 48.Ke2 Kc3 49.Nf4 Bc4 50.Ke3 Kb4=) 47.Nd3+= Rd8 48.Nf4 Kc5 49.Nd3 Kd4 50.Nf4 ½–½. Gelashvili,T (2620) – Vovk,Y (2545), 25th Open, Cappelle la Grande FRA, 2009. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.c4 e5 7.d3 a5 8.b5 Nbd7)

9.a4 Nc5 10.Nbd2 Re8 11.0-0 Bf5 12.e4 Bg4 13.h3 Bd7 14.Nb3 Ne6 15.Re1 Nf4 16.Bf1 b6 17.Qc2 N6h5 18.Rad1 Qf6 19.Nbd2 Ne6 20.Nb3 Nhf4 21.Nh2 Nc5 22.Nc5 dc5 23.Re3 h5 24.Bc1 Ne6 25.Bb2 Rad8 26.Rg3 Bh6 27.Rf3 Qg7 28.Qb1 f6 29.Bc1 Nd4 30.Rg3 Bf4 31.Bf4 ef4 32.Rf3 g5 33.Kh1 Qh6 34.g3 Bg4! 35.hg4 hg4 36.Rf4 gf4 37.Kg1 Kf7 38.Ng4 Qh5 39.Nf6 Kf6 40.Qc1 Rh8 41.Qf4 Kg6 (42.Qg5 Kg5 43.f4 Kf6 44.e5 Ke7 45.Rd2 Qh1 46.Kf2 Rh2 47.Ke1 Nf3 48.Kd1 Rd2 49.Kc1 Qf1#) 0–1. Luneau,Gilles – Georgiev,Vladimir (2515), Andorra op, 1997.

9.a4 Nc5 10.d4 ed4 11.ed4 Nce4 12.Nbd2 Re8 13.Ne4 Ne4 14.0-0 Bf5 15.Bd3 c5 16.Qc2 d5 17.Rfe1 Rc8 18.Rad1 Qb6 (better is 18...Bg4!?=) 19.dc5+/– Rc5 20.Bg7 Kg7 21.Nd4 Qf6 22.Nb3 Rcc8 23.Na5 Qb6 24.Nb7 (better is 24.Nb3!?+=) 24...Qb7+= 25.Be4 Be4 26.Qc3 f6 27.c5 Red8 (27...Ra8 28.f3 Bf5 29.g4 Re1 30.Re1 Ra4 31.gf5=) 28.Qd4 (better is 28.f3!? d4 29.Rd4 Rd4 30.Qd4+/–) 28...Qa7 29.f3 (29.f3 Bf5 30.c6+=) 1–0. Koehn,Peter (2300) – Sukharisingh,Ralf (2340), BL2–West, 1997. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 Nbd7)

9.a4 e4 10.Nd4 ed3 11.Qd3 Nc5 12.Qc2 Be6 13.0-0 Nfd7 14.Nd2 Qg5 15.N2f3 Qh6 16.Ra3 Rfe8 17.Rd1 Nb6 18.Bc1 f5 19.Ne6 Re6 20.Ne1 Re4 21.Bf3 Rh4 (21...Nc4?? 22.Be4 fe4 23.Qc4 Kf8 24.Ra2+–) 22.e4 g5 23.ef5 Kf8 24.g3 (better is 24.Nd3!? Nd3 25.Rad3 Rc4 26.Qb3+=) 24...Rc4+= a4 draws heavy fire 25.Qd2 Ra4 26.Ra4 Nba4 27.Nd3 Nb3 28.Qg5 Qg5 29.Bg5 Nd4 30.Bb7 Rb8 31.Bc6 Nc3 (worse is 31...Nb5 32.Re1 Nb2 33.Be7 Kg8 34.Bd5 Kh8 35.Nb2 Bb2 36.f6+/–) 32.Re1 h6 (32...Ndb5? 33.f6 Nd4 34.fg7 Kg7 35.Bh1+–; 32...Ncb5?! 33.Be7 Kg8 34.Bd5 Kh8 35.f6=) 33.Bd2 Ncb5 34.Be4 Nb3 35.Be3 a4 36.Nf4 Nc3 37.Ng6 Kf7 38.Bc6 Rd8 39.Nf4 a3 40.Nd5 Na5 41.Nc3 Nc6 (worse is 41...Bc3 42.Bd5 Kf6 43.Rc1+=) 42.Na2 Nd4 43.Rb1 Nf5 44.Bc1 Bb2! 45.g4 (45.Bb2 Rb8 Decoy) 45...Nh4 46.Bh6 c5 47.Kf1 Ng6 48.Bg5 Rh8 49.Rd1 Bd4 50.Kg2 Ne5 51.h3 Rb8 52.Bc1 Rb3 53.f3 Rb1 (53...Nf3 54.Rf1+/–) 0–1. Pedro,Fernando (2100) – Pott,Brian (1740), BI–2007–P–00001, 2007. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 Nbd7)

9.Nc3 b6 10.0-0+= Bb7 11.Qc2 Re8 12.Nd2 (12.e4 Nc5+=) 12...Nc5 Black intends a4 13.Bf3 d5 14.Rfd1 (14.cd5 Nd5 15.Nd5 Bd5+=) 14...a4 (14...c6 15.Rab1=) 15.Ba3+= Ne6 16.Rab1 Qd7 (16...Ra7 17.Rb4+= (17.Na4 Qa8–+)) 17.Na4+/– Ra7 (17...Ng5 18.Be2+=) 18.c5 Qd8 19.Bb4 (19.c6 Bc8+/–) 19...h6 (19...Qa8!? 20.c6 Bc8+=) 20.a3 Ng5 21.Be2 Bc8 22.Nb2 Bf5 23.Nf1 Bd7 24.a4 Ne6 25.c6 Bc8 26.a5 ba5 27.Ra1 d4 28.Ra5 Ra5 29.Ba5 Nd5 30.Nc4 Ng5 31.Ng3 de3 32.fe3 Be6 33.Bf1 Qe7 34.Qf2 Nf6 35.Qe1 Nd5 36.Qf2 h5 37.Ne4 Ne4 38.de4 Nf6 39.Qc2 Bh6 40.h3 Bc4 41.Bc4 Be3 42.Kh1 Ra8 43.Be1 Kg7 44.Bf1 Ne8 45.Qb3 Qg5 46.Be2 Nf6= 47.Bf3 Ng4 48.Bg3 Nf2 49.Bf2 Bf2 50.Rf1 Qe3 51.Qe3 Be3 52.h4 Ra4+= 53.Rd1 f5 54.Rd7 Kh6 55.Kh2 fe4+= 56.Be2 Ra2 57.Bd1 Bb6 58.Re7+= Rd2 (58...Rd2 59.Bb3 e3 60.Re5 Rb2-/+) 0–1. Popstein,Sheila – Kocandrle,Jaroslav (2140), IECG, 2004.

9.Nc3 Nb6 10.0-0=.

9.Nc3 Nc5 10.0-0 Re8 11.Nd2 Bf5 12.Nb3 Nfd7 13.d4 (13.e4 Nb3 14.Qb3 Be6=) 13...ed4 (13...Nb3 14.ab3 ed4 15.ed4=) 14.Nd4 (worse 14.ed4 a4 15.g4 Be6-/+ (15...ab3?! 16.gf5 Na4 17.Na4 Ra4 18.fg6 fg6 19.ab3 Ra1 20.Ba1+=)) 14...Be6 15.Qc2 Nb6 16.Ne6 Re6 (16...fe6 17.Rad1=) 17.Rad1 Qh4 18.Nd5 Nd5 19.cd5 Re7 20.Bg7 Kg7 21.Rd4 Qf6 22.Rfd1 b6 23.h4 (23.Rf4 Qe5+–) 23...h5 24.Bf3 Rae8 25.Rf4 Qe5 26.Rdd4 (26.Rc1!?+=) 26...Rh8 27.g3 f5 28.Rc4 Rf8 29.Kg2 Ree8 30.Qd1 Re7 31.Rcd4 Ref7 32.Rc4 (32.Qc2 Re8+=) 32...Rf6 33.Rc2 R6f7 34.Rfc4 Rf6 35.Qd4 Re8 36.Qf4 Rf7 37.R2c3 Ree7 38.Rd4 (38.a3 Ne4 39.Qe5 Re5 40.Be4 fe4+=) 38...Qf6 39.Rcc4 Re5 40.Bd1 Re4 41.Qf3 (worse 41.Re4 Nd3 (worse 41...Ne4 42.Rd4+=; worse 41...fe4 42.Qf6 Kf6 43.f4+=) 42.Bb3 Qa1=+) 41...Rd4 42.Rd4 Re7 43.Bc2 Re5 44.Rf4 Qe7 45.Qd1 Qe8 46.a4 Qe7 47.Rd4 Qf6 48.Qd2 Re7 49.f3 (49.Rc4 Ne4 50.Qe1 Qf7=) 49...Rf7 (49...Qe5 50.Kf2=) 50.Rf4 Qa1 (50...Qe5 51.Rc4=) 51.Qd4+= Qd4 52.Rd4 Re7 53.Kf2 Re5 54.Ke2 Kf6 55.g4 fg4 56.fg4 Kg7 57.g5 Re7 58.Rf4 Nd7 59.Rc4 Ne5 60.Rc3 ½–½. Londyn,R (2420) – Cvek,R (2500), TCh–CZE Extraliga, 2018. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 a5 6.b5 d6 7.Be2 e5 8.d3 Nbd7)

9.Nc3 Re8 10.0-0 b6 11.Qc2 Nc5 12.Rad1 Bb7 13.d4 ed4 14.Nd4 Nce4 15.Bf3 Nc3 16.Bc3 (16.Bb7 Nd1 17.Nc6 Qd7 18.Rd1 Qe6+=) 16...Ne4= 17.Bb2 Qf6 18.Rfe1 (18.a3 Qh4=) 18...h5 (18...Qh4 19.Re2=) 19.Ba1 Qg5 20.Nc6 (20.Nb3 Ba1 21.Na1 Re5+=) 20...Bc6= 21.bc6 Qe7 (21...Ba1 22.Be4 Bc3 23.Qc3 Re4 24.Rd5=) 22.Bd4 a4 23.Be4 (23.a3!?=) 23...Qe4+= 24.Qe4 Re4 25.f3 Ree8 (25...Re6 26.Kf2+=) 26.Bg7 (26.Kf2 a3=) 26...Kg7 27.Rd5 a3 28.Kf2 Ra4 29.Rc1 Rb4 30.Rc2 Ra8 31.Rd3 Ra5-/+ 32.Ke2 Rc5 33.Ra3 Rbc4 34.Rc4 Rc4 35.Kd3 Rc6 36.Ra4 Rc5 37.h3 Kf6 38.Rb4 Ke6 39.Rb2 h4–+ 40.Rb4 g5 41.f4 f6 42.fg5 fg5 43.a4 Kd7 44.Rg4 Ra5 45.Rb4 Kc6 46.Rg4 Kb7 47.Rb4 Rd5 48.Ke4 Re5 49.Kd3 Ka6 50.Rc4 c5 51.Rg4 Ka5 52.Ke2 d5 53.Kd3 c4 (53...c4 54.Kd4 Re4 55.Re4 de4 56.Kc4 Ka4+=) 0–1. Lange,Ca (2055) – Renner,Christo (2420), 3rd LGA Premium Cup, Nuernberg GER, 2006. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 Nbd7)

9.Nbd2 Re8 10.0-0 Nc5 11.Qc2 a4 12.a3 b6 13.Rfe1 Bb7 Black prepares the advance e4 (13...Qe7 14.Rad1+=) 14.Bf1 (14.d4 Nce4+=) 14...e4= 15.de4 Nce4 16.Ne4 Be4 17.Bd3 (17.Qd1 h6=) 17...Bd3 (17...Bf3 18.gf3 Ra7 19.Rad1=) 18.Qd3+= Qd7 (18...Qe7 19.Rad1+=) 19.Rad1 Qg4 20.h3 Qe4 21.Ng5 (21.Qe4 Ne4 22.Nd4 f5+=) 21...Qd3= 22.Rd3 h6 23.Nf3 Ne4 24.Bg7 (24.Bd4 Re7=) 24...Kg7 25.Nd4 Nc5 26.Nc6?? (better 26.Rdd1=) 26...Nd3–+ 27.Rd1 Ne5 28.Ne5 Re5 29.Rd4 Rae8 30.Kf1 Re4 0–1. Goldmund,Heike – Niglio,Biagio, FICGS, 2016.

9.0-0 Re8

10.Qc2 Nc5 11.Nbd2 b6 (11...a4 12.a3=) 12.Rfd1 (12.Rae1 a4=) 12...Bb7 Black plans e4 13.h3 e4 14.de4 Nfe4 15.Bg7 Kg7 16.Qb2 Qf6 17.Qf6 Kf6 18.Ne4 Ne4 19.Rac1 Kg7 (19...h6 20.Kf1=) 20.Nd4 Ng5 (20...Nc5 21.Bf3=) 21.h4 Ne6 22.Bf3 (22.Kf1 h6=) 22...Nd4 23.Bb7 (better 23.Rd4!? Bf3 24.gf3=) 23...Ne2-/+ 24.Kf1 Nc1 25.Ba8 Na2 (25...Ra8?! 26.Rc1 Re8 27.Rd1=) 26.Bc6 Re5 27.g4 (27.Bf3!?-/+) 27...Rc5–+ 28.e4 (28.Rd4 a4 29.Rf4 Nc3–+) 28...Nc3 29.Re1 (29.Rc1 Rc4 30.Ke1–+) 29...Rc4 30.f3 (30.Rc1 Rc5–+) 30...Rc5 31.Rc1 Ne4! 32.Rc5 (32.Be4 Rc1 Discovered attack (32...Rc1 Deflection); 32.fe4 Rc1 Discovered attack) 32...Nc5 (32...dc5?! 33.fe4 Kf6 34.g5 Ke5 35.Ke2=) 33.Ke2 Kf6 34.f4 Ke6 35.Ke3 d5 36.Kd4 Nb3 37.Kc3 a4 38.Kb2 (38.Ba8 d4 39.Kc4 d3–+) 38...Na5 (38...Nd4 39.Bb7 Nb5 40.Bc6 a3 41.Ka2–+) 39.Ba8 Nc4 40.Kc3 Kd6 41.Kd4 (41.Kb4 a3 42.Kb3–+) 41...a3 42.Bd5 a2 43.Kc4 a1Q 44.Bf7 (44.Bc6 Qf1 45.Kc3 Qf4–+) 44...Qa2 (44...Qa2 45.Kd4 Qf7–+) 0–1. Goldmund,Heike – Cuaycong,Virgilio, FICGS, 2015.

10.Nc3 Nc5 11.Qc2 e4 12.de4 Nfe4 13.Ne4 Ne4 14.Bg7 Kg7 15.Nd2 Nd2 16.Qd2 b6 17.Bf3 Rb8 18.Bc6 Bd7 19.Qd4 Kg8 20.Bd5 Be6 21.Rac1 Qe7 22.Rfd1 Qf8 23.h3 Qg7 24.Qg7 Kg7 25.a4 Re7 26.h4 h5 27.g3 Rbe8 28.Kf1 Bh3 29.Ke1 Bf5 30.Kd2 Bg4 31.Re1 Be6 32.Kd3 f5 33.f3 Kf6 ½-½. Lenderman,A (2645) - Chigaev,M (2640), Chess24 Banter Blitz Cup blitz, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 Nbd7)

10.Nc3 Nc5 11.d4 ed4 12.ed4 Nce4 13.Ne4 Ne4 14.Qc2 Ng5 15.Ng5 Qg5 16.Bf3 Bf5 17.Qc1 Qc1 18.Rac1 (18.Bc1? Bd4 19.Be3 Ba1 20.Ra1 Be4–+; 18.Rfc1?! Be4 19.Be4 Re4=) 18...Bh6 19.Rc3 Be4 20.Bc1 Bc1 21.Rfc1 Bf3 22.gf3 Re2 23.R3c2 Rae8 24.Kf1 R2e6 25.d5 Re5 26.b6 cb6 27.Rb1 Rc8 28.Rb6 Rd5 29.Rb7 Rh5 30.Rd7 Rh2 31.Rd6 Rh5 32.Ke2 Rf5 33.Rc3 h5 34.Rd4 g5 35.Rcd3 Kg7 36.Rd5 Rc5 37.Rf5 Rf5 38.Rc3 Kf6 39.c5 Ke7 40.c6 Kd8 41.c7 Kc8 42.Kf1 f6 43.Kg2 Rf4 44.Rc6 a4 45.Kg3 h4 46.Kg2 f5 47.Rc3 g4 48.fg4 fg4 49.Rc2 Rb4 50.Rc3 h3 51.Kg3 Rb1 52.f3?? (better is 52.Kh2 Rb2 53.Kg3–+) 52...Rg1 53.Kh2 Rg2 54.Kh1 g3 55.f4 Rh2 (55...Ra2?! 56.Rg3 Rf2 57.Rh3 Kc7 58.f5 Rf5 59.Ra3–+) 56.Kg1 Ra2 57.Rc1 Rg2 (57...Rg2 58.Kh1 Rf2–+) 0–1. Panchenko,Alexander N (2425) – Sumaneev,Dmitry (2435), Volgograd, 1997. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d3 e5 7.Be2 a5 8.b5 Nbd7)

10.Nc3 Nf8 11.Ng5 h6 12.Nge4 Ne4 13.Ne4 f5 14.Nc3 c6 15.Rb1 Bd7 16.Qb3 Ne6 17.bc6 bc6 18.Ba3 Bf8 19.Qc2 Qc7 20.Na4 White prepares the advance c5 20...Reb8 21.c5 dc5 22.Bc5 Nc5 23.Nc5 Bc5 24.Qc5 Be6 25.a3 Bd5 26.e4 Rb1 27.Rb1 fe4 28.de4 Be4 29.Bc4 Kh7 30.Re1 Qb7 31.f3 Bd5 32.Bd5 cd5 33.Re5 Rc8 34.Qa5 Rc1 35.Kf2 Rc2 36.Re2 Re2 37.Ke2 d4 38.Qb4 Qa6 39.Kd2 Qf1 40.Qe7 Kg8 41.Qe2 Qa1 42.Qc4 Kg7 43.a4 Qg1 44.Qe2 (44.Qc7!? Kg8 45.Qc8 Kf7 46.Qd7 Kf6 47.Qd6 Kf7 48.Qf4 Ke6 49.h4+/– (49.Qh6?! Qg2 50.Kd3 Kd5=)) 44...Qh2+= 45.Kd3 Qd6 46.Qb2 Qa6 47.Qb5 Qd6 48.a5 Qa3 49.Kd4 Qa1 50.Kd5 Qa2 51.Kd6 Qg2 52.a6 Qd2 53.Qd5 Qb4 54.Kd7 Qa4 55.Qc6 Qa2 56.Kc7 h5 57.Kb8 Kh6 58.Qc1 Kh7 59.Qc8 Kh6 60.Qf8 Kh7 61.Qe7 White plans a7 61...Kh6 62.Qe3 Kh7 63.a7 Qg8 64.Kc7 Qc4 65.Kd6 Qa6 66.Ke5 Qa5 67.Ke4 Qf5 68.Kd4 Qd7 69.Kc3 Qb7 70.Kd2 Kg7? (70...h4 71.Qa3 Qa8 72.Qe7 Kg8+–) 71.Qa3 Qa8 72.Ke1 Kh7 73.Qa5 Kh6 74.Kf2 h4 75.Qa1 (75.Qa4!? Kg7+–) 75...h3 76.Kg3 Kh7 77.Qa4 (77.Qa4+–; 77.Kh3?! Qf3 78.Kh2 Qf2 79.Kh1 Qf3 80.Kg1 Qg3 81.Kf1 Qf3 82.Kg1 Qg3 83.Kf1 Qf3 84.Kg1=) 1–0. Montag,Wilfrid Franz (2390) – Brachtel,Ralph (2355), ICCF corr MN/037 ICCF, 1996. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 Nbd7)

10.Nbd2 Nc5 11.Rc1 Bf5 12.Nb3 Nfd7 13.Bc3 Nb3 14.ab3 Nc5 ½–½. Espig – Kirov, Lodz 1978.

11.d4 ed4 12.ed4 (worse is 12.Qd4 Nfe4 13.Qg7 Kg7 14.Ne4 Kf8+=) 12...Ne6 13.Re1 Nf4 14.Bf1 Re1 15.Qe1 Bg4 16.Qd1 d5 17.h3 Bf5 18.Ne5 dc4 19.Bc4 Be6 20.Bf1 Qe7 21.a3 N6d5 22.Na4 Qg5 23.Kh2 Qf5 24.Qb1 f6 25.Qf5 Bf5 (worse is 25...gf5 26.Nf3+/–) 26.Ng4 Bd3 27.Ne3 Rd8 28.Nc5 Bf1 29.Rf1 (worse is 29.Nf1 b6 30.Na4 Nd3-/+) 29...b6 30.Na6 Re8 31.Rc1 Ne3 32.fe3 Re3 33.Rc7 Re2 34.Bc1 Rg2 35.Kh1 Rf2 36.Bf4 Rf4 37.Nb8 Rd4 38.Nd7 Rd6 39.Rb7 h5 40.Nb6 Rd3 41.Nd7?? f5 42.b6 Bd4 43.Rc7 Bb6 44.Nf6 Kf8 45.Rd7 Rh3 46.Kg2 Ra3 47.Nh7 ½–½. Hoebel,Hartmut (2140) – Zwicker,Thomas (2185), GER–ch36 V7 email, 2004.

8.b5 e4

9.de4 Ne4

10.Bg7 Kg7

11.0-0 Nd7 12.Nfd2 Qf6 13.Nb3 Re8 14.Bf3 Qb2 15.Qd4 Qd4 16.Nd4 Nb6 17.Be4 Re4 18.Nd2 Re5 19.Rfc1 Na4 20.N2f3 Re8 21.h3 b6 22.Rab1 (22.Kf1 Bb7=) 22...Bb7= 23.Nc6 (23.a3 f6=) 23...Bc6=+ 24.bc6 Nc5 25.Nd4 Re4 26.Nb5 Ne6 27.Rc3 Re5 28.Nd4 Re8 29.Rb5 Nd4 30.ed4 Rb5 31.cb5 Re1 32.Kh2 Rd1 33.Rc4 (33.Re3 Kf8-/+ (33...Rd4?! 34.Re7=)) 33...Rd2 34.a4 (34.a3!?-/+) 34...Rf2 35.Kg3 Ra2 36.Kf3? (better 36.d5 f5 37.Kf3–+) 36...d5 37.Rc5 (37.Rc3 Ra4 38.Re3 Kf6–+ (38...Rd4?! 39.Re7–+)) 37...Ra3 38.Kf2 bc5 39.b6 c4 (39...Ra4 40.bc7 c4 41.c8Q+–; 39...cd4? 40.bc7 Ra4 41.c8Q Ra2 42.Kf3+–; 39...cb6 40.c7 cd4 41.c8Q Ra4 42.Qc7=) 40.bc7 (40.Ke2 c3 41.Kd1 c2 42.Kc2 cb6 43.c7 Ra4 44.c8R Rc4 45.Rc4 dc4 46.d5–+) 40...c3 41.c8Q (41.Ke3 c2 42.Kd2 Rc3–+) 41...c2 42.Qe8 c1Q 43.Qe5 f6 44.Qe7 Kh6 45.Qf8 Kg5 46.h4 Kg4 47.Qc8 f5 (47...f5 48.Qe6 Qf4 49.Ke1 Ra1 50.Ke2 Ra2 51.Kd1 Qd2) 0–1. chesswolff (2035) – high (2625), gameknot.com, 2011. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 a5 8.b5 e4)

11.0-0 Nd7 12.Qd4 Ndf6 (12...Qf6 13.Nbd2 Nd2 14.Qd2+=) 13.Nbd2 Nd2 14.Nd2 Bf5? (better is 14...Qe7+=) 15.g4+– Bg4 (15...Be6 16.g5 h6 17.f4+–) 16.Bg4 Kg8 17.Bf3 1–0. Mirzoev,A (2555) – Dastan,B (2090), Campomanes Mem IM, Ankara TUR, 2010. (=1.Nf3 Nf6 2.b4 d6 3.Bb2 e5 4.e3 g6 5.c4 Bg7 6.d3 0-0 7.Be2 a5 8.b5)

11.0-0 Nd7 12.Nd4=.

11.0-0 Qf6 12.Nd4 Nd7 13.f3 Nec5 14.Nc3 Nb6 15.Qd2 Be6 16.Ne6 Qe6 (16...fe6 17.Rad1=) 17.Rfe1 (17.Nd5 Nd5 18.cd5 Qe5=) 17...Rfe8 (worse 17...Nc4 18.Qd4 Ne5 19.f4+/-) 18.Bf1 (18.e4 Qe5= (worse 18...Nc4 19.Qd4 Ne5 20.f4+/-)) 18...Qf6 (worse 18...Nc4 19.Qd4 Ne5 20.f4+/-) 19.Rac1 Re7 20.e4 Rae8 21.Nd1 a4 22.Nf2 h5 (22...Nbd7 23.Ng4 Qh4 24.Ne3=) 23.Re3 Kg8 24.Rce1 Qe6 25.Qc3 Qe5 26.Qc1 Qd4 27.Rd1 Qg7 28.g3 (28.Nd3 Ncd7=) 28...f5=+ 29.Nh3 (29.Qc2!?=+) 29...fe4-/+ 30.f4 Nd3 (30...h4 31.Ng5-/+) 31.Bd3=+ ed3 32.Red3 Nd7 (32...Qf7 33.Rc3-/+) 33.b6 (33.Ng5 Qf6=+) 33...Nc5 (better 33...Nb6!? 34.c5 dc5 35.Qc5 Re1 36.Re1 Re1 37.Kf2 Re8-/+) 34.Rd5 Ne4 35.Re1 (better 35.R5d3!?=) 35...c6 36.Rd3 Nf2 37.Rde3? (better 37.Re7!? Nh3 38.Kg2 Qe7 39.Qd1 Nf4 40.gf4 Qe4 41.Kg1 Qc4 42.Rd6-/+) 37...Nh3 38.Kg2 Re3 39.Re3 Re3 40.Qe3 Qd7 0-1. Svidler,Peter (2720) - Nepomniachtchi,I (2780), Legends of Chess Prelim, 2020. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3)

11.0-0 Qf6 12.Nd4+= Nd7 13.f3 (13.Bf3 Ndc5+=) 13...Nec5= 14.Nc3 Nb6 15.Nd5 Nd5 16.cd5 Qe5 17.Nc2 ½–½. Sherbakov,R – Mortensen,E, Hastings B (Open), Hastings, 1993. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.d3 a5 8.b5)

11.Qd4 Qf6 12.Nfd2 Qd4 13.ed4 Re8 14.Ne4 Re4 15.Nc3 Rd4 16.Nd5 Rd5 (16...Nd7!? 17.Nc7 Rb8=) 17.cd5+/– Nd7 18.Kd2 b6 19.Rac1 Nc5 20.Rhe1 Kf8 21.h4 Bd7 22.Bc4 a4 23.a3 Ra5 24.Rb1 Bf5 25.Rb4 Ne4 26.Ke3 Nc5 27.Re2 h5 28.f3 Kg7 29.Kd2 Bd7 30.Re3 Ra8 31.Be2 Kf8 32.Kc3 Kg7 33.Rf4 f5 34.g4 Kf6 (34...g5 35.hg5 Kg6 36.gh5 Kh5 37.g6+/–) 35.g5+– Kf7 36.Rd4 Kf8 37.f4 Be8 38.Rd1 Bf7 39.Bc4 Ra5 40.Rde1 Ra8 41.Re7 Ra7 42.R1e3 Rb7 43.Be2 Ra7 44.Bf3 Rb7 45.Kc4 Ra7 46.Bd1 Rb7 47.Bc2+/– Ra7 48.Re2 Rb7 49.Re1 Ra7 50.R1e3 Rb7 51.R7e6?? Be6= 52.de6 Ke7 53.Kd5 Ra7 54.Kc6 Ra5 55.Bd3 Ra7 56.Bc4 Nb7 57.Kc7 Na5 58.Kb6 Nc4 59.Ka7 Ne3 60.b6 Nc4 61.Ka6 Nb6 62.Kb6 d5 63.Kb5 Ke6 64.Kc5 d4 65.Kd4 Kd6 66.Kc4 Kc6 67.Kd4 Kd6 ½–½. Garcia Palermo,Carlos H (2480) – Rombaldoni,Axel (2445), Torino ITA, 2012. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 d6 5.e3 e5 6.d3 0-0 7.Be2 a5 8.b5 e4)

11.Qd4 Qf6 12.Bd3 Nc5 13.Qf6 Kf6 14.Be2 Be6 15.Nc3 Nbd7 16.Nd5 Bd5 17.cd5 Nb6 18.Rd1 Rfe8 19.0-0 Re4 20.Rd2 Rae8 21.Rc1 a4 22.Kf1 Rb4 23.a3 Rb3 24.Ra1 Rc3 25.Rdd1 Nb3 26.Ra2 Rc5 27.Ne1 Rd5 28.Rd5 Nd5 29.Rc2 Re5 30.g3 h6 31.Bf3 Nc5 32.Ke2 Ne6 33.Kd2 Nb6 34.Bb7 Rb5 35.Bc6 Rb3 36.Rc3 Nd8 37.Bf3 c5 38.Bd1 Rc3 39.Kc3 Ne6 40.Nf3 Nc7 41.Be2 d5 42.g4 Ne8 43.h4 Nd6 44.Nd2 Ke6 45.f3 f5 46.Bd3 Kf6 47.Be2 g5 48.hg5 hg5 49.gf5 Nf5 50.Nf1 d4 51.ed4 Nd4 52.Ng3 Ke5 53.Kd2 Ne2 54.Ke2 Kd4 55.Nf5 Kc3 56.Nd6 c4 57.Ne4 Kb2 (58.Kd1 c3 59.Nc3 Kc3–+) 0–1. Matson,Richard – Larsen,Soeren M, corr ICCF EM/M/GT/A012, 1998.

8.b5 Re8

9.Nbd2 b6 10.a4 Bb7 11.0-0 Nbd7 12.Nb3 e4 13.de4 Ne4 14.Qc2 Ndc5 15.Nc5 Nc5 16.Bg7 Kg7 17.Rfd1 Qf6 18.Nd4 Be4 19.Qc1 Qg5 20.Bf3 Bf3 21.Nf3 Qf6 22.Ra3 Re7 23.Qc3 (23.Nd4 Rae8=) 23...Rae8 (better is 23...Qc3!? 24.Rc3 Na4-/+) 24.Qf6= Kf6 25.Nd4 Re4 26.Kf1 Kg7 27.h3 f5 28.Re1 f4 29.Raa1? (better is 29.Re2!?+=) 29...fe3–+ 30.Re3 Re3 31.fe3 Re3 32.Kf2 Re4 33.Nf3 Rc4 34.Ng5 Ra4 35.Re1 (35.Ra4 Na4 36.Ne6 Kf6 37.Nc7 Ke5–+) 35...Ra2 (better is 35...Nd3 36.Ke2 Ne1 37.Ke1–+) 36.Kf1 Nd3 (36...Nd3 37.Rd1 Nf4–+) 0–1. Fournier,Frederic (1805) – GuardiaImperial (1970), Active, 2007.

9.Nbd2 Nbd7 ½–½. Vogt,Lothar (2490) – Popovic,Petar (2460), Rubinstein Memorial, 1982. (=1.Nf3 Nf6 2.c4 g6 3.b4 a5 4.b5 Bg7 5.Bb2 0-0 6.e3 d6 7.Be2 e5 8.d3)

8.b5 Bg4

9.0-0 Nbd7 10.Nbd2 Re8 11.Ng5 Be2 12.Qe2 a4 13.a3 Nc5 14.f3 d5 15.Rac1 dc4 16.dc4 Qd3 17.Qd3 Nd3 18.Rb1 Bh6 19.f4 Ng4 20.Rf3 ef4 21.ef4 Nf4 22.h4 Ne6 23.Ne6 Re6 24.Nf1 Rae8 25.Rd1 Ne3 26.Ne3 Be3 27.Kf1 Re4 28.Re1 Bc5 29.Re4 Re4 30.Rd3 Rh4 31.Rd8 Bf8 32.Bd4 Rf4 33.Ke2 Rf5 34.Ke3 Rg5 35.Bf6 Rh5 36.Bd4 c5 37.bc6 bc6 38.g4 Rh3 39.Kf4 Rd3 40.Ke4 Rd1 41.c5 h5 42.gh5 gh5 43.Ra8 f5 44.Ke3 h4 45.Rc8 h3 46.Rf8 Kf8 47.Be5 Re1 48.Kd4 Re4 0–1. Doctor? 3.0 – EXchess 3.11, 2003.

9.0-0 Nbd7 10.Nbd2 Re8 11.Ng5 Be2 12.Qe2 Nb6 13.Rfb1 a4 14.Qf3 a3 15.Bc3 Ra7 16.Rb3 Bh6 17.Nde4 Bg5 18.Ng5 Nbd7 19.e4 Nc5 20.Rb4 h6 21.Nh3 Ra5 22.Rab1 Ne6 23.Qe3 Ng4 24.Qg3 Nf6 25.f3 Qe7 26.Kh1 Raa8 27.Nf2 Nh5 28.Qg4 Nef4 29.b6?? Nf6–+ 30.Qf4 ef4 31.bc7 Nh5 32.Rb7 Rec8 33.R1b3 Rc7 34.Rb8 Rc8 35.Rc8 Rc8 36.Ng4 Qf8 37.Ra3 d5 38.Ra4 Rb8 39.Kg1 Rb1 40.Kf2 dc4 41.Rc4 Rd1 42.Nh6 Kh7 43.Ke2 Rb1 44.Ng4 Qa3 45.Bd2 Rg1 46.Kf2 Qd3 47.Kg1 Qc4 48.Kf2 Qd4 49.Ke2 Qg1 50.Kd3 Qg2 51.Ne5 f6 (52.Nc4 Qf3 53.Kd4 Qf2 54.Kc3 Qh2–+) 0–1. Doctor? 3.0 – EXchess 3.11, 2004.

7.d3 b6

8.0-0 Re8 9.Nc3=.

8.Nc3 Bb7 9.0-0 Nbd7 10.Qc2 c5!? =.

8.Nfd2 Bb7 9.Bf3 Qc8 10.Nc3 Nbd7 11.Bb7 Qb7 12.Qf3 (12.0-0 a5 13.b5 Nc5+= 14.Qe2) 12...Qf3= 13.gf3 (13.Nf3 a5 14.Nb5+= –0.28 (14.b5 a4+=)) 13...Rfc8 (13...a5 14.b5=) 14.Ke2 (14.Nde4 h6=; 14.0-0= 0.17) 14...c6 15.Rhc1 (15.Rhg1 d5=) 15...d5 (15...a6 16.Rc2+=) 16.Rab1 (16.b5 dc4 17.Nc4 Ne8=) 16...d4 (16...a6 17.Rg1+=) 17.Nce4= a5 18.b5 c5 19.Nf6 Nf6 20.Rg1 Re8 21.Nf1 Nd7 22.e4 Nf8 23.Bc1 Ne6 24.Ng3 h5 25.Kd1 Kh7 26.Ne2 Bh6 27.Kc2 Rg8 28.Rg2 Raf8 29.Bh6 Kh6 30.Re1 Rg7 31.h4 f5 32.ef5 (32.f4 ef4 (32...Nf4?! 33.Nf4 ef4 34.ef5=) 33.ef5 Rf5-/+) 32...Rf5 33.f4 Rgf7 (33...ef4 34.Ng1 Rf6 35.Nh3-/+) 34.Reg1 Nf8 35.fe5 Rf2 36.Kd2 R7f5 (36...Rg2 37.Rg2 Rf5-/+) 37.Rg5? (better is 37.Rf2!? Rf2 38.Ke1+=) 37...Rg5-/+ 38.hg5 (38.Rg5 Ne6 39.Rg1–+) 38...Kg7–+ 39.Ke1 (39.Kd1 Rf5–+) 39...Rf5 40.Rf1 Ne6 0–1. Romanishin,Oleg – Petrosian,Tigran, Leningrad, 1977. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 b6)

8.0-0 Bb7

9.b5 Nbd7 10.d4 ed4 11.ed4 c6 (11...a6 12.ba6 Ra6 13.Re1=) 12.a4 (12.bc6 Bc6 13.Nc3 Re8+=) 12...a5 (12...d5 13.a5 ba5 14.bc6 Bc6 15.Ne5=) 13.Nbd2 (13.bc6 Bc6 14.d5 Bb7+=) 13...Re8 (13...cb5 14.ab5 Re8 15.Re1=) 14.Rb1 (14.bc6 Bc6 15.d5 Bb7+=) 14...cb5= 15.cb5 Rc8 16.Nc4? (16.Re1 Nd5=) 16...Nf8 (better 16...Bf3!? 17.gf3 Bf8-/+) 17.Ne3 (17.Bd3 Nd5=) 17...Ne6 18.h3 (18.Re1 Nf4=) 18...Nf4 19.Bc4 Rc4 (19...d5 20.Bb3=) 20.Nc4= Ne2 21.Kh1?? (better 21.Kh2 Ng4 22.Kh1 Bf3 23.Qb3–+ (23.gf3?? Qh4 24.Kg2 Nf4 25.Kg1 Qh3 26.fg4 Qg2)) 21...Bf3–+ 22.gf3 (22.Qb3 Bd5 23.Kh2–+) 22...Qc8 (22...Qc8 23.Qe2 Re2 24.Nb6 Qh3 25.Kg1 Nh5 26.Rbc1 Nf4 27.Rc8 Bf8 28.Rf8 Kf8 29.Nd7 Ke7 30.Rb1 Qg2) 0–1. algernon (2440) – truss (2485), net–chess.com, 2014.

9.Nc3 a5 10.a3=.

9.Nc3 Nbd7 10.Qb3 (10.Qc2 Qe7=) 10...e4 (10...a5 11.a3=) 11.de4 Ne4 12.Rfd1 (12.Ne4 Bb2 13.Qb2 Be4=) 12...Nc3 13.Bc3 Bc3 14.Qc3 Qf6 (14...a5 15.a3=) 15.Qf6 Nf6 16.Nd4 a6 (16...Rfe8 17.Rac1=) 17.c5 dc5 18.bc5 Rad8 (18...b5 19.c6 Bc8 20.f3+=) 19.Rdc1 (19.cb6 cb6 20.Rac1 Rd7=) 19...Ne4 (19...Rfe8 20.cb6 cb6 21.Rc7=) 20.cb6+= cb6 21.Rab1 (21.a4 Nf6+=) 21...Rd6 22.Rc7 Bd5 (22...Nc5 23.Rc1=) 23.Ba6 (23.a4 a5+=) 23...Ba2 (23...Ra8 24.Bb7 Ra2 25.Bd5 Rd5 26.f3+=) 24.Rb2 (24.Ra1 Bd5+=) 24...Bd5 25.Bb7 Nf6 26.h3 (26.Nb5 Rdd8 27.g3 Bb7 28.Rb7 Rb8+=) 26...Rb8 27.Bd5 (27.Bc6 Kg7+=) 27...Nd5 28.Ra7 Nf6 (28...Rbd8 29.Rc2=) 29.Nf3 (29.g3 Rd7 30.Rd7 Nd7=) 29...Rd7= 30.Ra6 Attacking the isolated pawn on b6 (30.Rd7 Nd7 31.Nd4 Ra8=) 30...Nd5 (30...Ne4 31.Nd4+=) 31.Ne5+= Rc7 32.e4 (32.Rd2 Nf6+=) 32...Nf6 (32...Nc3 33.f3=) 33.f3+= Nd7 (33...Re8 34.Rb5+=) 34.Nd7 Rd7 35.Rab6 Rb6 36.Rb6 Rd2 (36...Kg7 37.Kh2+=) 37.Kh2 (37.h4 Kg7+=) 37...Kg7 (37...g5 38.h4 gh4 39.Rh6+=) 38.h4 h5 (38...Re2 39.Kh3+=) 39.Kh3 Re2 (39...Rc2 40.Ra6+=) 40.Kg3 Kf8 41.Rb1 (41.Rb5 Rc2+=) 41...Kg7 (41...Ke7 42.Kh3+=) 42.Rg1 (42.Kh3 Kf6+=) 42...Kf6 (42...f6 43.Kf4+=) 43.Kf4+– Ke6 (43...Rc2 44.g3+–) 44.g3 f6 (44...Rc2 45.Rb1+–) 45.Ra1 (45.Rb1 Rf2+–) 45...Kf7 46.Ra7 (46.Ra8 Rg2+–) 46...Kf8 47.g4 (47.Rc7 Rf2+–) 47...hg4 48.fg4 (48.Kg4 Rg2 49.Kf4 Rh2+–) 48...Rf2 (48...Rh2 49.Ra6 Kf7 50.Kg3+–) 49.Ke3 (49.Kg3 Re2 50.Kf3 Rh2+–) 49...Rh2 (49...Rf1 50.g5+–) 50.g5 fg5 51.hg5 Rg2 52.Kf4 Kg8 53.Rd7 (53.Ra6 Kf7+–) 53...Rg1 (53...Kf8 54.Rb7+–) 54.Ke5 (54.Rb7!?+–) 54...Rg5 55.Kf6 (better 55.Kd6 Ra5 56.e5=) 55...Rg1?? (better 55...Rg2=) 56.e5+– Rf1 57.Ke7 g5 (57...Kg7 58.e6 g5 59.Rd5+–) 58.e6 Kg7 59.Kd8 Kg6 (59...Kf6 60.e7 Rb1 61.Rd6 Kf5 62.Rd5 Kf4 63.Rd4 Kf3 64.Rd3 Kf4+–) 60.e7 Re1 61.e8Q Re8 62.Ke8 Kf5 63.Rg7 g4 64.Kf7 Kf4 65.Kg6 g3 66.Kh5 Kf3 67.Kh4 g2 68.Kh3 1–0. Philippe,Guillaume (2340) – Dhanush,Bharadwaj (2210), 92. ch–Paris IdF, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 b6 8.0-0 Bb7)

9.Nbd2 c5 10.bc5 (10.a3 Nbd7+=) 10...bc5= 11.Rb1 (11.Qb3 Qc7=) 11...Bc6 (11...Nbd7 12.Qc2 Rb8 13.Bc3=) 12.Qc2 (12.d4 cd4 13.ed4 e4+=) 12...Na6 13.a3 Nd7 (13...Rb8 14.d4 e4 15.Ng5+=) 14.d4 cd4 15.ed4 Bf3 (15...Rc8 16.c5 Nab8 17.Ne4 ed4 18.Nd4 (18.cd6? Re8 19.Rbc1 Re4–+) 18...Be4 19.Qe4 dc5 20.Nb5=+) 16.Nf3+/– ed4 17.Nd4 Nac5 (17...Nb6 18.Bf3 Bd4 19.Bd4+/–) 18.Bf3 Rc8 (18...Bd4 19.Bd4 Rc8 20.Rfd1+/–) 19.Nc6 Qg5 20.Bg7 Kg7 21.Na7 Rb8 22.Nb5 Ne5 23.Bd5+– Qf6 24.Rfd1 Rfd8 25.a4+– Nb7 26.Qc3 Ng4 27.Qd4 Qd4 28.Rd4 Nf6 29.Bf3 Ne8 30.Kf1 f5 31.Bb7 Rb7 32.c5 Nc7 33.Rd6 Rd6 34.cd6 Nb5 35.Rb5 Ra7 36.Rd5 Rd7 37.Ke2 Kf6 38.Kd3 Ke6 39.Kd4 Rd6 40.Rd6 Kd6 41.f4 h6 42.h3 h5 43.h4 (43...g5 44.hg5+–) 1–0. pierre – Raysand, ChessWorld.net, 2005.

9.Nbd2 Re8 10.Qc2 Nbd7 11.Rfe1 c5 12.a3 Qc7 13.h3 Rac8 14.b5 d5 15.e4 de4 16.de4 Nf8 17.Bf1 N6d7 18.Nb1 Ne6 19.Nc3 Nd4 20.Qd1 f5 21.Nd5 Qd6 22.Nd2 Bh6 23.Bc3 Bd2 24.Bd2 fe4 25.Nc3 Nf6 26.Bg5 Rf8 27.a4 Qe6 28.a5 Rcd8 29.Qb1 Qf5 30.Be3 g5 31.ab6 ab6 32.Ra7 Rf7 33.Qc1 g4 34.h4 Nh5 35.Ne2 Nf3 36.gf3 gf3 37.Kh2 fe2 38.Be2 Nf4 39.Bf4 Qf4 40.Qf4 ef4 41.Bg4 Rd6 42.Bf5 e3 43.Rb7 Rb7 44.fe3 fe3 45.Re3 Kg7 46.Be4 Rf7 47.Bd5 Rfd7 48.Kg3 Kf6 49.Re8 Re7 50.Rb8 Ke5 51.Bc6 Rg7 52.Kf3 Kd4 53.Rb6 Rf6 54.Ke2 Re7 55.Kd2 Rf2 56.Kd1 Kd3 0–1. Tu Hoang Thong – Temirbaev, Singapore 1996.

9.Nbd2 Nbd7

10.a4 a5 11.b5 Re8 12.Re1 Nc5 13.d4+= ed4 14.ed4 Nce4 15.Qc2 Nd2 16.Nd2. marekt – madsickkill, ChessWorld.net, 2004.

10.Rc1 a5 11.a3 ab4 12.ab4 c6 13.Qb3 Qe7 14.Rfd1 d5 15.cd5 cd5?? (better is 15...Nd5 16.b5 Nc5=) 16.Rc7+/– Rfb8 17.Be5! Ne8 18.Rd7! Qd7 19.Bb8 Rb8 20.d4 Nd6 21.Rc1 b5 22.Ne1 Bc6 23.Ra1 Nc4 24.Ndf3 f5 25.Nd3 Qe7 26.Ra6 Rc8 27.Qa2 g5?? 28.Ra7 Qf6 29.Qa6 (29.Qa6 Rb8 30.Ng5+–) 1–0. FournierF+NorbergS+RobesonC – FroideveauxJM+TranA, Consultation, 2008.

10.Qc2 Qe7 11.a4 a5 12.b5 Nc5 13.d4 ed4 14.ed4 Qe2 15.dc5 Bf3 16.Rfe1 Be4 17.Qc1 Qg4=+ 18.Ne4 Ne4 19.Bg7 Kg7 20.cb6 Qf5 21.Qe3 cb6 22.Qe4+= Qe4 23.Re4 Rae8 24.Rd4 Re6 25.Kf1 Kf6 26.Re1 Ke7 27.Ree4 Kd7 28.Ke2 Rfe8 29.Kd3 f5 30.Re6 Re6 31.Kd2 Re5 32.Rh4 h5 33.Rd4 ½–½. MrkT – alinabi, Internet, 2005.

10.Qc2 Re8 11.e4 a5 12.b5 Nc5 13.a4 Qe7 = 14.Ne1 Ne6 15.g3 h5 16.Ng2 Ng5 17.f4 Ngh7 18.f5 g5 19.Qd1 g4 20.h3 gh3 21.Nh4 Bh6 22.Bc1 Kh8 23.Bh5 Rg8 24.Kh2 Rg7 25.Kh3 Rag8 26.Rg1 Bg5 27.Nf1 Bh4 28.Bh6 Ng5 29.Kh4 Rh7 30.Bg5 Rg5 31.Kh3 Ne4 32.de4 Be4 33.g4 Rhh5 34.Kg3 Rf5 35.gh5 Qg5 36.Qg4 Rf3 37.Kh2 Rf2 38.Kg3 Rf3 39.Kh2 Rf2 40.Kg3 ½–½. Dietert – Landmann, corr 1972.

10.Ng5 h6 11.Bf3 e4 (better is 11...d5!? 12.Nh3 c5=) 12.Nge4+/– Ne4 13.Bg7 (13.Be4?! Be4 14.Bg7 Bg2 15.Bf8 Bf1 16.Qf1 Kf8+=) 13...Nd2 (13...Kg7 14.Be4 Be4 15.Ne4+/–) 14.Bb7+– (14.Qd2 Bf3 15.Bh6 Qh4+=) 14...Nf1 15.Bf8 Rb8 16.Bh6 Ne3 17.fe3 Rb7 18.Qf3 Rb8 19.d4 Qh4 20.Bf4 Kg7 (20...Qe7 21.b5+–) 21.Qc6 Qd8 22.Rf1 f6 23.Qf3 (23.a3 a6+–) 23...Qe7 24.Qg4 (24.Rf2 f5+–) 24...Nf8 25.Qf3 a5?? (25...Nd7 26.Rf2 f5+–) 26.b5+/– Ne6 27.Bg3 Ng5 28.Qe2 Ne4 29.Bh4 Rh8 30.Qg4 g5 31.Be1 Qe8 32.h4 Rh5 33.Rf5 Kh6 34.Rf3 Qe7 35.Rh3 Qe8 36.Qf3 Qg6? 37.hg5 Ng5 38.Rh5 Qh5 39.Qf6 Qg6 40.Qg6 Kg6 41.Bh4 Ne4 42.Bd8 Nd2 43.Bc7 Nc4 44.Kf2 Kf5 45.Kf3 d5 46.g4 Ke6 47.Kf4 a4 48.e4 de4 49.Ke4 Na3 50.d5 Kd7 51.Bb6 Nb5 52.Ke5 Ke7 53.Bc5 Kd7 54.g5 Ke8 55.g6 Nc3 56.Ke6 Ne4 57.Be3 Kf8 58.Bh6 Kg8 59.d6 a3 60.d7 Nc5 61.Ke7 Nd7 62.Kd7 (62.Kd7 Kh8 63.Ke6 Kg8 64.g7 Kh7 65.Kf7 Kh6 66.g8Q Kh5 67.Qg3 Kh6 68.Qg6#) 1–0. Schmidbauer,Josef – Hilmer,Karl, Niederbayern–ch, 2005.

8.0-0 Nbd7

9.Nc3 Bb7+=.

9.Nbd2 Bb7 10.a3 Qe7=.

9.Nbd2 Bb7 10.a4 a6 11.Qc2 Re8 12.Rfc1 Rb8 13.Rab1 c5 14.Bc3 d5 15.bc5 d4 16.c6 dc3 17.cd7 Nd7 18.Ne4 Be4 19.de4 Nc5 20.Rd1 Qc7 21.Rd5 Qc6 22.Ra1 a5 23.h4 Na6 24.Qc3 Nb4 25.Qb3 Nd5 26.cd5 Qc5 27.Ba6 Bf8 28.Bb5 Re7 29.h5 Qd6 30.hg6 hg6 31.Qc3 Kg7 32.Rd1 Rd8 33.g3 f6 34.Nh4 Rc7 35.Qd3 Be7 36.Kg2 Qb4 37.Rb1 Qc5 38.Qe2 f5 39.Ng6 Kg6 40.Rh1 Bf6 41.Qh5 Kg7 42.Qf5 Rf7 43.Be2 Qc8 44.Rh7 Kg8 45.Qg6 Rg7 46.Rg7 Bg7 47.Bg4 Rd6 48.Qd6 Qg4 49.f3 Qc8 50.Qc6 Qa6 51.Kh3 Qe2 52.Qe8 Kh7 53.Qh5 Kg8 54.d6 Qf1 55.Kg4 Qc4 56.Qe8 Kh7 57.d7 Bf6 58.Kf5 Bd8 59.Qd8 Qf7 60.Ke5 Qh5 61.Ke6 1–0. Anastasian – Smirin, Moscow 1992.

9.Nbd2 Bb7 10.Qc2 Qe7 11.a4 a5 12.ba5 (12.b5 Nc5=) 12...Ra5 13.Nb3 Ra7 (13...Ra6 14.a5=) 14.a5 e4 15.Nfd4 Ne5 (15...Ne5 16.ab6 Ra1 17.Ra1 ed3 18.Bd3 cb6+=; 15...Ra6 16.Nb5 ed3 17.Bd3=). Panchenko,AN – Smirin,I, Moscow, 1992.

9.Nbd2 Bb7 10.Qc2 Qe7 11.b5 a6=.

9.Nbd2 Re8 10.Qa4=.

7.d3 c6

8.0-0 a5 9.b5 cb5 (9...Bg4 10.Nfd2 Be6 11.Nc3=) 10.cb5 Nbd7 (10...Be6 11.d4=) 11.Nbd2+= Re8 12.Rc1 b6 (12...Nb6 13.a4+=) 13.Nc4+/– Nc5 (13...Nb8 14.Nfd2+/–) 14.d4 ed4 15.Qd4 Re4 (15...Bd7!? 16.Nd6 Re6+/–) 16.Qd6+– Qd6 17.Nd6 Rb4 18.Ba3 (18.Nc4 Rb5 19.Nd4 Rb2 20.Nb2 Nd5+–) 18...Ra4 19.Nc4 (19.Nc8?! Rc8 20.Bc5 Rc5 21.Rc5 bc5+=) 19...Be6 (19...Nd5 20.Nd4 Ne6+–) 20.Nb6 Ra3 21.Na8 (21.Rc5?! Rb8 22.Rc6 Ra2+=) 21...Bf8 22.Nd4 Bd5 23.Nc7 Be4 24.Bc4 Nd3 25.Bd3 Bd3 26.Rfd1 Be4 27.Ra1 Bc5 28.Nc6 Bc6 29.bc6 Rc3 30.Nb5 Rc4 31.c7 Be7 32.Rac1 Rc1 33.Rc1 Bb4 34.c8Q Kg7 35.Qd8 h5 36.Rc8 Kh6 37.Qf6 1–0. pierred – DANIELO, ChessWorld.net, 2005.

8.0-0 Nbd7 9.Nc3 Re8 10.a4 Qc7 11.a5 Nf8 (11...c5 12.b5+=) 12.d4 Bg4 (12...Bf5 13.Qd2+=) 13.a6 b6. pcmvr (2305) – gtan (2290), net–chess.com, 2006.

8.0-0 Be6 9.Nc3+= h6 10.d4 Nbd7 11.a4 (11.d5 cd5 12.cd5 Bg4+=) 11...Qe7 (11...Qb6 12.b5=) 12.b5 (12.d5 Bg4+=) 12...c5 (12...Bf5 13.h3 Rac8 14.Qd2=) 13.de5 (13.d5 Bg4+/–) 13...de5 14.Qb3 (14.e4 a6+/–) 14...g5 (14...e4!? 15.Nd2 Bf5=) 15.Rfd1 Rad8 (15...e4 16.Nd2 Bf5 17.Nd5 Nd5 18.cd5 Bb2 19.Qb2+=) 16.a5 (16.e4+/–) 16...Kh8? (better is 16...e4!? 17.Nd2 Bf5+=) 17.Nd2 (17.Nd5 Qe8+/–) 17...Ne8 18.Bf3 (18.e4!?+–) 18...Nd6+/– 19.Bd5 (19.Ra4 f5+/–) 19...f5 20.Nf1 (20.a6!? b6 21.e4+=) 20...e4= 21.Na4 b6 (21...f4!?=) 22.ab6 ab6 23.Ng3 Kh7 24.Nh5 Bb2= 25.Qb2 Kg6 26.Ng3?? Nc4-/+ 27.Qe2 Nde5 28.Nc3 Na5 29.f4 Ng4 30.Be4? fe4–+ 31.f5 Rf5 32.Nce4 Rfd5 33.Rf1 Rf8 34.Rf8 Qf8 35.Rf1 Qg7?? 36.h3+= Re5? 37.hg4+– Bc4?? 38.Qc2 Bf1 39.Nh5 Qc7 40.Nd6 (40.Nd6 Bd3 41.Qd3 Re4 42.Qe4#) 1–0. Kaenel,H (2450) – Vovsha,E (2350), MTO Open Biel SUI, 2000. (=1.Nf3 Nf6 2.e3 g6 3.b4 d6 4.Bb2 Bg7 5.c4 e5 6.d3 0-0 7.Be2)

8.0-0 Qe7 9.Nbd2 Bd7 10.a4 Na6 11.Qb3 h6 12.Rac1 Be6 13.Ba3 Nd7 14.Rfe1 f5 15.Qc2 g5 16.g3 Bf6 17.h3 g4 18.hg4 fg4 19.Nh2 h5 20.b5 Nac5 21.d4 ed4 22.Qg6 Qg7 23.Qh5 de3 24.fe3 Bg5 25.Bg4 Nf6 26.Be6 Ne6 27.Qh3 Kf7? 28.Bd6 Rh8 29.Qf5 Qh6 30.Ndf3?? Be3-/+ 31.Kg2 Nd4 32.Ng4?? Qh3# 0–1. Menzel – Coelsch,Christof (2000), Hoechst – Stadt Baden–Baden, 1999.

8.0-0 Bg4 9.h3 Bf5 10.e4=.

8.0-0 h6 9.d4 e4 10.Nfd2 d5 (10...c5 11.Qb3+=) 11.Nc3 Na6 (11...Qe7 12.Qb3+=) 12.b5 Nc7 (12...cb5 13.cb5 Nc7 14.Rc1+=) 13.bc6 bc6 14.Ba3 Re8 15.Rb1 Ba6 (15...a6 16.Qa4+/–) 16.Qc2 (16.Qa4 Qd7+/–) 16...Qd7+= 17.Na4 (17.Qa4 Red8+=) 17...Ne6 18.Rfe1 Red8 (better is 18...Qc7!?+/–) 19.cd5+– cd5? (better is 19...Bd3 20.Bd3 ed3 21.Qc6 Qd5 22.Qd5 Nd5+–) 20.Ba6 Ng4 (20...Rab8 21.Rec1+–) 21.Bb5 Qc7 (21...Qc8 22.Qd1 Nc7 23.Be2+–) 22.Qc7 Nc7 23.Bc6 Rab8 (23...Rac8 24.Rec1 Ne6 25.h3+–) 24.Rb8 Rb8 25.Bd6 (25.Bd6 Bf8 26.Bc7+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

8.a3 Nbd7 9.Nc3 Qe7 10.h3 e4 11.Ne4 Ne5 (11...Ne4 12.Bg7 Kg7 13.de4+=) 12.Ned2+– Bd7 13.0-0 Rad8 14.Qb3 Be6 (14...Rfe8!?+–) 15.Ne5+– de5 16.Be5 Bh3 17.Bf6 (17.gh3?! Qe5 18.d4 Qe6+–) 17...Qf6 18.Ne4 Qf5 19.Ng3 (19.gh3 Qh3 20.Ra2 Be5+–) 19...Qd7 20.gh3 Qh3 21.Ra2 Be5 (21...h5 22.Bd1+–) 22.Bf3 Bg3 23.fg3 Qe6 (23...Rfe8 24.d4 Qg3 25.Rg2+–) 24.e4 (24.d4 Rfe8 25.Kf2 Rd6+–) 24...b5 (24...Qd6+–) 25.Kg2 Rd4 26.Rc2 Rfd8 27.Be2 a6 28.Rc3 Kg7 (28...bc4 29.Rc4 Rc4 30.Qc4 (worse 30.dc4 Qe4 31.Qf3 Qe6+–) 30...Qc4 31.dc4+–) 29.cb5 Qb3 30.Rb3 cb5 31.Rc3 1–0. Silent Move (2115) – rlsomga, redhotpawn.com, 2016.

8.a4 Na6 9.Qd2 (9.Qb3 c5 10.bc5 e4+=) 9...Bg4 (9...e4 10.Ng5 ed3 11.Bd3 Ng4=) 10.0-0 (10.Ng1 c5 11.f3 Bd7=) 10...Re8 (10...e4!? 11.Nd4 Be2 12.Ne2 ed3+=) 11.e4 (11.h3 Be6=) 11...c5 12.b5 Nb4 13.a5 (13.Bc3 a5 14.ba6 Na6=) 13...b6 (13...a6!? 14.ba6 Ra6+=) 14.a6+= Nh5 15.h3 (15.Ne1!? Be2 16.Qe2+=) 15...Bf3+= 16.Bf3 Nf4 17.Be2 (17.Ra3 Qf6 18.Kh2 Rf8+=) 17...Bh6 18.Qd1 Qg5 (18...Qe7!?+=) 19.g3= f5 20.Bc1? (20.Kh1 Nh3 21.Kh2 Nf2 22.Rf2+=) 20...Bg7?? (better is 20...Nh3 21.Kg2 Qc1 22.Qc1 Bc1 23.Rc1 fe4 24.Kh3 ed3-/+) 21.Kh2+= Qh6? (21...fe4 22.Ra3 d5 (worse is 22...ed3 23.Bd3 Nbd3 24.Rd3+=) 23.cd5 ed3 24.Bd3 A) 24...Nbd5?? A1) 25.gf4?! Nf4 (25...ef4?? 26.Rg1 Qh4 27.Bc4+–) 26.Be4 Rab8+=; A2) 25.Bc4 Qf5 26.gf4+–; B) 24...Nbd3 25.Rd3 Qf5 26.gf4 c4=) 22.gf4+– ef4 23.Ra3 (23.Ra4 d5 24.cd5 fe4 25.de4 Re4+–) 23...Be5 (23...fe4 24.de4 A) 24...Re4?? 25.Bf3 Be5 26.Bb2+– (26.Be4?? f3 27.Kg1 Qh3 28.Qd5 Nd5 29.Bd5 Kh8 30.Ba8 Qg2); B) 24...Kh8+–) 24.f3?? (better is 24.Bf3 Rad8 25.ef5+–) 24...Bd4 25.Nc3?? Qh4 26.Qe1 Qe1-/+ 27.Re1 Nc2 28.Nd5 Ne1 29.Nc7 Nc2 30.Na8 Ra8 31.Ra2 Ne3 32.Bb2 Kf7 33.Bd4 cd4 34.Ra1 Kf6 35.Rg1 g5 36.Rh1 Re8 37.Kg1 fe4 38.fe4 Rg8 39.Kf2 Rg6 40.Rg1 Rh6 41.Bg4? Rh4 42.Ke2?? h5–+ 43.Bf3 Rh3 44.Rh1 Rh1 45.Bh1 g4 46.Kf2 h4 47.Ke2 h3 48.Kf2 g3 49.Kf3 g2 50.Bg2 hg2 51.Kf2 Ke5 52.c5 dc5 53.Kg1 f3 54.Kf2 c4 55.dc4 Nc4 56.Kg1 Ke4 57.Kf2 d3 58.Kg1 Ke3 (58...Ke3 59.Kh2 d2 60.Kh3 g1Q 61.Kh4 Kf4 62.Kh3 Qh1; 58...d2 59.Kf2 d1Q 60.Kg3 Qh1 61.Kf2 g1Q) 0–1. Hoehnemann,Hans Juergen – Frantzke,Helmut (1820), Kurpfalz Seniors op, 2001.

8.Nbd2 a5 9.a3 Re8 10.0-0 Nbd7 11.Ne4 Qe7 12.Qb3 Ne4 13.de4 Nf6 14.Qc2 Bg4 15.Rfd1 Qc7 16.h3 Bf3 17.Bf3 Bf8 18.g3 Ra7 19.Bc3 ab4 20.ab4 Rea8 21.Qb2 Nd7 22.Ra7 Ra7 23.c5 dc5 24.Bg4 Nb6 25.Be5 Nc4 26.Bc7 Nb2 27.Rd8 h5 28.Bd6 (28.Be2!? Ra1 29.Kg2+–) 28...hg4 29.Bc5 Ra1 30.Kh2 (30.Kg2 gh3 31.Kh3 Nd3 32.Rd3 Bc5 33.bc5 Rc1+/–) 30...b6 (30...Ra2 31.Rf8 Kg7+/–) 31.Bf8+/– (31.Rf8?! Kg7 32.Be7 Nd3=) 31...Rd1 32.Rc8 f6 (better is 32...Nd3!? 33.Bc5 Kh7 34.Bb6 Nf2+=) 33.Bc5+– Kf7 34.Bd4 Nd3 (better is 34...Rd2!? 35.Rc6 Rf2 36.Kg1 Nd3 37.hg4 b5+–) 35.Rc6+– Ne1 36.hg4 (36.Rf6?! Ke7 37.Rf4 Nf3 38.Rf3 gf3+–; 36.Bb6?? Nf3 37.Kg2 Rg1) 36...Nf3 37.Kg2 Nd4 38.Rd6 1–0. Kempinski,Robert (2620) – Moser,Eva (2435), Neckar op–A 9th, 2005. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 c6)

8.Nbd2 Bf5 9.0-0 Nbd7 10.e4 Be6 11.Ng5 Qe7 12.Ne6 Qe6 13.f4 d5 14.cd5 cd5 15.f5 (better is 15.fe5!? Ne5 16.Qb3+=) 15...Qb6-/+ 16.Kh1 de4 17.Ne4 Ne4 18.de4 Qb4 19.Qc2 Rac8 20.Qb1 Nc5 21.Bf3 Rfd8 22.a4 Rd3 23.Bc1 Qb1 24.Rb1 b6 25.a5 Rb8 (better is 25...ba5!? 26.fg6 hg6–+) 26.ab6 ab6 27.Ba3?? (better is 27.Re1-/+) 27...Ra3–+ 28.Rfc1 Nd3 29.Rc6 b5 30.Be2 (30.Kg1 b4–+) 30...Nf2 31.Kg1 Ne4 32.Bb5 (32.fg6 hg6 33.Bc4 Rd8–+) 32...Nc3 (better is 32...Rb5!? 33.Rf1–+) 33.Rc5 Nb1 (33...Nb1 34.fg6 Ra5 35.gh7 Kh8–+) 0–1. Fournier,Frederic (1840) – jemarin1 (1905), Active (5/0), 2004.

8.h3 a5 9.b5=.

8.h3 b6 9.Nbd2 (9.Nc3 Be6=) 9...Bd7 (9...a5 10.b5=) 10.0-0 a6 (10...Qe7 11.c5 dc5 12.bc5 Qc5 13.Be5+=) 11.a4 (11.c5 Be6+=) 11...b5 (11...c5 12.bc5 bc5 13.Ne4=) 12.ab5 (better 12.c5 Be6 13.Ng5+=) 12...a5? (better 12...cb5!? 13.Bc3 Qc7+=) 13.bc6 (13.Qa4 Qe8 14.d4 ed4 15.Nd4 c5+–) 13...Bc6 14.b5 Bd7 (14...Bb7 15.Qc2+–) 15.Qc2 (15.Qa4 Re8+–) 15...Qc8 (15...Be6 16.d4+–) 16.Ne4 (better 16.Bc3!?+–) 16...Ne4+– 17.de4 Qd8? (better 17...Bb5 18.Rfd1 Nd7+–) 18.Rfd1 (18.Ba3 Re8+–) 18...Be6 (18...Qc8 19.Bc3+–) 19.Nh2 (19.Ba3 Qc8+–) 19...Nd7 (19...Qg5 20.Bg4 Bg4 21.Ng4+–) 20.Rd6 (20.Ba3 Qb6 21.Rd6 Qb7+–) 20...Qe7 (20...Qc7 21.Rc6 Qb7 22.c5+–) 21.Ba3 (better 21.Rc6 Rfd8+–) 21...Rfe8?! (21...Rfc8 22.Bg4 Nc5 23.Rad1+–) 22.Rad1 (22.Bg4 Bg4 23.Ng4 Rec8 24.Rg6 Qe8 25.Nh6 Kh8 26.Rg7 Kg7 27.Nf5 Kh8+–) 22...Qd8 (22...Rec8 23.Bg4 Nc5 24.Be6 Ne6 25.Nf3+–) 23.c5 White plans b6 (better 23.Bg4 Ra7 24.b6+–) 23...Rb8 (23...Bf8 24.Rc6 Qe7+–) 24.c6 Rc8 (24...Qc8 25.Rd7 Bd7 26.Rd7+–) 25.Qb2 (25.Bc4 Bf8 26.Rd7 Bd7 27.Rd7 Qg5+–) 25...Rc7 (25...Rb8 26.Qd2 Qc7 27.cd7+–) 26.cd7 (better 26.b6 Rc6 27.Rc6 Qb8+–) 26...Rd7 (26...Re7 27.b6 Rb7 28.Bb5+–) 27.b6 (27.Rd7!? Bd7 28.Qd2 Bf8 29.Bf8 Kf8 30.Qd7 Qd7 31.Rd7 Re7 32.Rd8 Kg7+–) 27...Rd6 (27...Bf8 28.Rd7 Bd7 29.Ng4 Ba3 30.Qa3+–) 28.Rd6 (better 28.Bd6 Bc8 29.b7 Bb7 30.Be5 Be5 31.Rd8 Bb2 32.Re8 Kg7+–) 28...Qb8 29.b7 Bf8 30.Rb6 (30.Qb6 Bh3 31.gh3 Be7+–) 30...Ba3 31.Qa3 Qc7 (31...Qa7 32.Qb2 Rb8 33.Nf3+–) 32.Qa5 Qc1 (32...Rb8 33.Ng4 h5 34.Nf6 Kg7+–) 33.Nf1 Qc7 34.Qa8 (better 34.Re6 Qa5 35.Re8 Kg7+–) 34...Ra8 (34...Rb8+–) 35.ba8Q Kg7 36.Rb8 Kf6 37.Rc8! Bc8 (37...Qc8 38.Qa5 Combination; 37...Bc8 38.Ba6 Decoy) 38.Qd5 (38.f4 Kg7+–) 38...Be6 39.Qd3 h6 40.g3 (40.Kh2 Kg7+–) 40...g5 (40...Bh3 41.Nd2+–) 41.Qd2 (41.g4!? Kg7+–) 41...Bh3 42.Qb2 (42.g4 Bf1 43.Kf1 Ke7+–) 42...Be6 43.f4 gf4 (43...Qc5 44.f5 Bd7 45.Qd2+–) 44.gf4 (44.ef4 Qc5 45.Kg2 Bd7+–) 44...Ke7 45.Qe5 Qe5 46.fe5 Ke8 (46...Ba2 47.Nh2+–) 47.Nd2 (47.Ng3!? Kd7+–) 47...Kf8 (47...Ke7 48.Kh2+–) 48.Nf3 (48.Nc4 Bc4 49.Bc4 Kg7+–) 48...Kg7 49.Kh2 h5 (49...Kg6 50.Nd4 Ba2 51.Bb5+–) 50.Kg3 Bd7 (50...Bg4 51.Nd4 Be2 52.Ne2+–) 51.Kh4 (51.Nd4 Kf8+–) 51...Be8 (51...Bg4 52.Nd4 Be2 53.Ne2+–) 52.Kh5 (52.Nd4 Bd7+–) 52...f6 (52...Bc6 53.Ng5+–) 53.Kg4 fe5 54.Ne5 (54.Kf5 Kf7+–) 54...Kf6 55.Kf4 Ba4 (55...Ke7 56.Bc4+–) 56.Ng4 (56.Nf3 Bb3+–) 56...Kg6 (56...Ke7 57.e5+–) 57.Bd3 (57.Bc4 Kg7 58.e5 Kf8+–) 57...Bd1 58.e5 Kf7 (58...Kg7 59.Nf6+–) 59.Nf6 (better 59.Nh6 Ke6 60.Bc4 Kd7 61.e6 Kc6+–) 59...Ke6 (59...Bb3 60.Bf5 Bc4 61.e4+–) 60.Bc4 Ke7 61.e4 Bc2 (61...Ba4 62.Nd5 Kf8 63.e6+–) 62.Nd5 Kd7 63.Kf5 Bd1 (63...Kd8 64.Bb5 Bd1 65.e6+–) 64.Kf6 (64.Bb5 Kc8 65.e6 Kb7+–) 64...Bh5 (64...Kc6+–) 65.Bb5 Kd8 66.e6 (66.e6 Kc8 67.Kg5 Bd1 68.e7 Be2 69.e8Q Kb7 70.Bc6 Ka6 71.Qa8) 1–0. GuestNMSB – GuestCFVC, freechess.org, 2016.

8.0-0 Na6

9.a3 Nc7 10.Nbd2 Nd7 (10...Qe7 11.Qc2=) 11.Ne4 Qe7 12.Qb3 f5 (12...Nf6 13.h3+=) 13.c5+= d5 14.Nd6 Ne8 15.Ne8 (15.Nc8 Rc8 16.e4 Nc7+=) 15...Re8= 16.e4 fe4 (16...Nf6 17.ef5 Bf5 18.Ne5+=) 17.de4+= Nf6 18.Be5 (better is 18.ed5!? Nd5 19.Bc4+=) 18...Ne4+= 19.Bg7 Kg7 (19...Qg7 20.Bd3+=) 20.Bd3 (20.Nd4 b6 21.f3 Nf6=) 20...Bf5 (20...Qf6!?+=) 21.Nd4 Qf6 22.Nf5 (22.Qb2 Kg8=) 22...gf5 (22...Qf5? 23.f3 Nc5 24.bc5+–) 23.Qc2 (23.Rfe1=) 23...Re5 (better is 23...Re6!?+=) 24.f3+= Qh6?? (better is 24...Ng5 25.f4 Re3 26.Bf5 Ne4+=) 25.f4 ½–½. Fett,Sabine (1800) – Erler,Mark (1675), Mittelfranken–ch, 2003.

9.a3 Bg4+=.

9.Qd2 Nc7 10.Qc2 (10.Nc3 Bg4=) 10...Qe7 (10...a5 11.a3=) 11.Nbd2 h6 (11...Bg4 12.c5 dc5 13.Qc5 Qc5 14.bc5=) 12.c5 Nd7 (12...dc5 13.Qc5 Qc5 14.bc5=) 13.cd6 Qd6 14.Nc4 (14.a3 f5+=) 14...Qe7 15.a4 (15.a3 Nd5+=) 15...Nd5 (15...Rd8 16.Rfc1+=) 16.b5 c5 17.a5 b6 (better is 17...Qe6!?+=) 18.ab6+/– N5b6 19.Be5 Nc4 (19...Ne5 20.Nb6 (20.Nfe5?! Be5 21.Nb6 Ba1 22.Nc8 Rfc8 23.Ra1 Rab8=) 20...Rb8 21.Nc8 Rfc8 22.Ra5+/–) 20.Bg7+– Ne3? (better is 20...Kg7 21.Qc4 Rd8+–) 21.Bf8 (21.fe3?! Qe3 22.Rf2 Kg7=) 21...Nf8 (21...Nc2 22.Be7 Na1 23.Ra1+–) 22.fe3 Qe3 23.Kh1 Bf5 (23...Ne6 24.d4+–) 24.Rfe1 (24.Rfe1 Ne6 25.b6+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.Qd2 Re8 10.a3=.

7.d3 Nc6

8.a3 b6 9.Nbd2 Bd7 10.Qc2 Re8 11.0-0 Ne7 12.Rfe1 h6 13.e4 g5 14.h3 c5 15.bc5 bc5 16.Rab1 a5 17.Bc3 a4 18.Rb7 Rb8 19.Reb1 Rb7 20.Rb7 Qa8 21.Qb2 Be6 22.Ne1 Ng6 23.f3 Nf4 24.Bf1 Kh7 25.Nc2 Bc8 26.Rb6 Nd7 27.Rd6 Ne6 28.Ne3 Bf8 29.Re6 Re6= 30.Nd5 Bb7? 31.Nc7+– Qc8 32.Ne6 fe6 33.Be2 Nf6 34.Nb1 Qd7 35.Be5 Bg7?? 36.Bf6 Bf6 37.Qf6 Qg7 38.Qg7 Kg7 39.Nc3 Kg6 40.Na4 Bc6 41.Nc5 Kf6 42.a4 Ke7 43.a5 Kd6 44.Nb3 Kc7 45.d4 Ba4 46.Bd1 Kb7 47.d5 ed5 48.ed5 Ka6 49.Kf2 Bb3 50.Bb3 Ka5 51.Ke3 Kb6 52.Kd4 Kc7 53.c5 h5 54.Ke5 h4 55.Kf5 g4 56.Kg5 gf3 57.gf3 Kd7 58.Kh4 Ke7 59.Kg5 Kd7 60.h4 Ke7 61.h5 Kf7 62.h6 Kg8 63.f4 Kh8 64.f5 Kh7 65.f6 Kg8 66.d6 Kf8 67.h7 Ke8 68.h8Q Kd7 69.Qg7 Kc6 70.Qc7 Kb5 ½–½. Fournier,Frederic – chessbono, Active, 2008.

8.a3 d5 9.cd5 (worse 9.Be5 Ne5 10.Ne5 d4=) 9...Nd5 (better 9...Qd5 10.e4 Qd8+=) 10.e4 (better 10.b5 Nb8 11.Be5 Be5 12.Ne5+–) 10...Nf4-/+ 11.0-0 Nd4 (11...Bg4 12.b5 Bf3 13.Bf3-/+) 12.Nd4 ed4 13.Bg4 (13.Bf3 Be5=+) 13...Qg5 (13...Bg4!? 14.Qg4 Nd3-/+) 14.Bf3=+ Bh3 (better 14...a5=+) 15.g3? (15.Bc1 Be6 16.g3 Nh3 17.Kg2=) 15...Be6?? (better 15...Bf1 16.Qf1 Ne6–+) 16.Kh1 (16.h4 Nh3 17.Kg2 Qb5+=) 16...Nh3= 17.Bg2 Be5? (better 17...Qg4 18.Qc2 c6=) 18.Bc1 Qf6 (18...Qd8 19.f4 Nf4 20.Bf4 (20.Rf4?! Bf4 21.Bf4 c6+–) 20...Bf4 21.Rf4+–) 19.f4 Bf4 20.Bf4 Qe7?! (20...Nf4 21.Rf4 Qg7+–) 21.Bh6 f5 (21...Rfe8+–) 22.Bh3 (22.Bf8 Rf8 23.Bh3 fe4 24.Rf8 Kf8+–) 22...fe4 (22...Rfe8 23.ef5 Bd5 24.Bg2 Bg2 25.Kg2 Qe2 26.Qe2 Re2 27.Kh3 gf5 28.Rf5+–) 23.Be6 (23.Rf8 Rf8 24.Bf8 Kf8+–) 23...Qe6 24.Rf8 Rf8 25.Bf8 ed3 (25...Kf8 26.de4 Qe4 27.Kg1 Qe3 28.Kg2+–) 26.Bh6 Qe4 (26...g5 27.Qh5 Qe1 28.Kg2 Qe2 29.Qe2 de2 30.Kf2+–) 27.Kg1 (27.Kg1 Kf7 28.Nd2+–) 1–0. GuestPNDS – GuestVXVT, freechess.org, 2017.

8.a3 Bd7 9.0-0 Nh5 10.Nfd2 Qh4 11.g3 Qg5 12.Ne4 Qe7 13.Nbc3 Bh3 14.Nd5 Qd8 15.Re1 f5 16.Nec3 Qd7 17.f4 ef4 18.Nf4 Nf4 19.gf4 Rae8 20.Bf3 Bg4 21.Rb1 g5 22.b5 Nd8 23.fg5 Nf7 24.Bg4 fg4 25.Ne4 Re4 26.de4 Ng5 27.Qd5 Qf7 28.Rf1 Nf3 29.Kg2 Qd5 30.cd5 Bb2 31.Rb2 Nh4 32.Kg1 Nf3 33.Kh1 Re8 34.Rb4 Kg7 35.Rc4 Kg6 36.Rf2 Re7 37.a4 h5 38.Kg2 Ne5 39.Rd4 Nd7 40.h3 gh3 41.Kh3 Re5 42.Rg2 Kf7 43.Kh4 Nc5 44.Rg5 Re4 45.Re4 Ne4 46.Rh5 Ke7 47.Rh7 Kd8 48.Rh8 Kd7 49.Ra8 Nc3 50.Ra7 b6 51.Kg3 Nd5 52.Kf3 Kc8 53.Ra8 Kb7 54.Rh8 Nc3 55.Rh4 d5 56.Kf2 c5 57.Ke1 Kc7 58.Kd2 Ne4 59.Kd3 Nf2 60.Kc2 Ne4 61.Rh7 1–0. Panno – Garcia Palermo, Villa Gesell 1972.

8.a3 Bg4 9.0-0 b6 10.b5 Ne7 11.d4 e4 12.Nfd2 Be2 13.Qe2 d5 14.Nc3 Re8 15.Rac1 a6 16.ba6 c6 17.cd5 Ned5 18.Nd5 Qd5 19.a4 Qa2 20.Rb1 Nd5 21.Rfc1 Re6 22.Qd1 Ra6 23.Ne4 Qa4 24.Qf1 Nc7 25.Ng5 Rd6 26.Bc3 Rd5 27.Ne4 f5 28.Nd2 Kf8 29.Nc4 Rb5 30.Ra1 Qb3 31.Ra6 Na6 32.Nd6 Rd5 33.Qa6 Rd6 34.Qc8 Ke7 35.Qc7 Rd7 36.Qc6 Rd6 37.Qc8 Rd7 38.h3 Bf6 39.Ra1 Bh4 40.g3 Bf6 41.Ra8 Qb1?? 42.Kh2 (42...Bg7 43.Qg8+–) 1–0. marekt – JF_, ChessWorld.net, 2004.

8.Qb3 Bd7 9.0-0 Ne8 10.Nbd2 f5 11.c5 Kh8 12.Nc4 Be6 13.b5 Ne7 14.Qc2 h6 15.e4 g5 16.ef5 Bf5 17.Ne3 Bh7 18.cd6 cd6 19.Rac1 Qd7 20.Nd2 Qb5 21.Ndc4 Qd7 22.Bf3 Rf3 23.gf3 Qh3 24.Qe2 Bg6 25.Ng4 Nd5 26.Nce5 de5 27.Be5 h5 28.Bg7 Ng7 29.Ne3 Nf4 0–1. Reuter – Frueh.

8.Qb3 e4 9.de4 Ne4 10.0-0+=.

8.Qb3 Be6 9.b5 Na5 (9...Ne7 10.Ng5=) 10.Qa4 (10.Qb4 c5 11.bc6=) 10...c6 (10...b6!?=) 11.Bc3+= b6 12.bc6 Qc7 13.Ba5 ba5 14.Nbd2 Rfb8 15.Nb3 Rb4 (15...Rb6 16.d4+– (16.Na5? Ra6–+)) 16.Qa5 Qa5 (16...Rb6 17.d4+–) 17.Na5+– Rc8 18.a4 Ne8 (18...Rc7 19.0-0 Rb2 20.Rfe1+–) 19.d4 (19.Ng5 Rb6+–) 19...e4 (19...Bg4 20.de5 de5 21.Nd2+–) 20.Nd2 (20.Ng5 Nf6+–) 20...f5 21.Kd1 (21.Rf1 Kf8+–) 21...Bf6 (21...Rcb8 22.Kc2+–) 22.Kc2 (22.f3 Kf8+–) 22...Bd8 23.Ndb3 Nc7 (23...Rcb8 24.Rhb1 Bc7+–) 24.d5 Bf7 (24...Bf6 25.de6 Ba1 26.Ra1 (26.Na1?! Ra4 27.N1b3 Ra2 28.Kd1 Ne6+=) 26...Ne6 27.Kc3+–) 25.Nb7 Be7 (25...Rb8 26.Nd8 Rd8 27.Na5+–) 26.Rhb1 (26.Nd4 Rb8+–) 26...Na6? (26...Nd5 27.cd5 Bd5+–) 27.Nd4 Rb1 28.Rb1 Nc7 29.Nb5 (29.Nb5 Ne8 30.f3 ef3 31.gf3+– (31.Na7?! Ra8+–)) 1–0. Pierre – The_Winner, internet, 2020.

8.Qb3 Ne7 9.Nc3= h6 (9...Bf5 10.0-0=) 10.h3 Be6 11.d4 ed4 (11...e4 12.Nd2 d5 13.0-0=) 12.Nd4+= Bd7 ½–½. Milovanovic,Nebojsa (2150) – Begus,Drasko (2325), Sabac SER, 2nd League–West, 2014. (=1.Nf3 Nf6 2.c4 d6 3.b4 g6 4.Bb2 Bg7 5.e3 0-0 6.d3 e5 7.Be2 Nc6)

8.b5 Nb8 9.0-0 Ne8 10.d4 e4 11.Nfd2 f5 12.Nc3 Be6 13.Nd5 Bd5 14.cd5 Nd7 15.Rc1 Qh4 16.Qb3 g5 17.f4 g4 18.a4 g3 19.h3 Ndf6 20.a5 Ng4 21.Ne4 Nh2 22.Ng5 Nf1 23.Kf1 h6 24.Ne6 Rf7 25.b6 ab6 26.ab6 cb6 27.Qb6 Nf6 28.Rc7 Nd5 29.Rf7 Nb6 30.Rg7 Kh8 31.d5 Nd5 32.Rg4?? (better is 32.Rb7 Kg8 33.Rg7 Kh8 34.Rg3 Kh7 35.Rg7 Kh8 36.Rg4 Qf6 37.Bf6 Nf6 38.Rg6 Ra1 39.Kf2 Ne4 40.Kf3+–) 32...Kh7 (32...Qf6 33.Bf6 Nf6 34.Rg6 (34.Rg3?! Ne4 35.Rg6 Ra1 36.Bd1 Rd1 37.Ke2 Rd2 38.Ke1 Kh7 39.Rg7 Kh8=) 34...Ra1 35.Bd1+–) 33.Rg7 Kh8 34.Rb7 (34.Rb7 Qf6 35.Bf6 Nf6 36.Bf3+–) 1–0. Towsley – Cocomo, Horowitz Memorial open, 1992. (=1.Nf3 d6 2.b4 e5 3.Bb2 Nf6 4.c4 g6 5.e3 Bg7 6.d3 0-0 7.Be2 Nc6)

8.a3 a5

9.b5 Ne7

10.0-0 h6 11.Nc3 c6 12.Rb1 Be6 13.Qb3 Nd7 14.Na4 d5 15.Nd2 f5 16.f4 d4 17.Nf3 c5 18.fe5 de3 19.d4 f4 20.d5 (20.Nc5?! Nc5 21.dc5 Qc8+=) 20...Bg4 21.e6 Bf3 22.Bf3 Ne5 (22...Bb2 23.Rb2 (worse is 23.ed7 Bd4+=) 23...Ne5 24.Be2+/–) 23.Be2 Nf5 (23...Rc8 24.Rbd1 Qd6 25.Nc3+–) 24.Rf4 Qg5 25.Rbf1 Nd4 26.Rf8 Rf8 27.Rf8 (27.Qd1 Rf2 28.Rf2 ef2 29.Kf1+/–) 27...Bf8+/– 28.Qd1 Qf4 29.Qf1 Bd6 30.Bd4?? Nf3!! (30...Nf3 31.Qf3 Qh2 32.Kf1 Qh1) 0–1. Barbarickiy,Yuri (2020) – Savitskiy,Sergey (2140), Salekhard op, 2008. (=1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.c4 0-0 5.Nf3 d6 6.Be2 e5 7.d3 Nc6 8.a3 a5)

10.0-0 h6 11.Nbd2 Nh7 12.a4 f5 13.Qc2 g5 14.Rac1 Ng6 15.c5 g4 16.Ne1 h5 17.g3 (17.c6!?+/–) 17...h4 18.Ng2 hg3 19.fg3 Ng5 20.cd6 cd6 21.Qc7 b6 22.Qd8 Rd8 23.Rc6 Nh3 24.Kh1 Bb7 25.Rb6+– Rab8 26.Rc1?? Bh6?? 27.Rc7?? Bg2–+ 28.Kg2 Be3?? 29.Rb8+– Rb8 30.Nc4 Bc5 31.Be5 Ne5+/– 32.Ne5 Re8? 33.Bg4?? fg4? 34.Ng4+– Ng5 35.Nf6 Kf8 36.Ne8 Ke8 37.Rc6 Kd7 38.Ra6 Bb4 39.b6 Kc8 40.Ra7+– Ne6 41.h4 Nc5 42.d4 Na4 43.h5 Nb6+/– 44.Rf7 Bd2? 45.g4 Kb8? 46.Rf6+– Kc7 47.h6 Bh6 48.Rh6 a4 49.Rh1 a3? 50.Ra1 Nc4 51.g5 Kd7 52.Kg3 Ke6 0–1. Fournier,Frederic (1920) – ahahah (1760), Active (5/0), 2005.

10.a4 b6 11.0-0 Bb7 12.Nbd2 Qd7 13.Qc2 Rad8 14.Rac1 c5 15.Rfd1 Qf5 16.Nf1 h6 17.Ng3 Qd7 18.d4 e4 19.Nd2 Nf5 ½–½. Greenock – turm_schiefbahn, playchess.de, 2002.

10.a4 c6 11.bc6 bc6 12.c5 Ng4 13.cd6 Qd6 14.h3 Qb4 15.Bc3 Ne3 16.fe3 Qd6 17.0-0 Bb7 18.Nbd2 Nf5 19.Nc4 Qc5 20.Qd2 Ng3 21.Rfc1 Ne2 22.Qe2 Rfe8 23.Qf2 f6 24.Rab1 Qf8 25.Rb7 Rad8 26.Ba5 Rd3 27.Bd2 Qc5 28.Qe1 e4 29.Nd4 f5 30.Nb2 Qa3 31.Nd3 ed3 32.Nc6 Qa4 33.Ra7 Qe4 34.Qg3 Rc8 35.Ne7 Qe7 36.Re7 Rc1 37.Bc1 Bc3 38.Qb8 1–0. Chess4Win (1700) – EJCG (1705), lichess.org, 2019.

10.Nc3 Nd7 11.0-0 f5 12.d4 e4 13.Ng5 Nf6 14.Rc1 h6 15.Nh3 g5 16.Kh1 f4 17.ef4 Bh3 18.gh3 gf4 19.Bg4 Ng6 20.Be6 Kh8 21.Qc2 Qe8 22.d5 Nh4 23.Ne4 Qg6 24.Rg1 Qe4 25.Qe4 Ne4 26.Bg7 Kh7 27.Rcf1 Rfe8 28.Ba1 Ng5 29.Rg4 1–0. Luzuriaga,Norberto Horacio – Fernandez,Esteban, Buenos Aires vs. Cuyo, 2000.

10.Nc3 Nd7 11.d4 ed4 12.ed4 Nf6 13.0-0 Nf5 14.Re1 h6 15.Bf1 d5 16.Ne5 dc4 17.Bc4 Nd6 18.Bb3 Kh7 19.a4 Nh5 20.Qf3 Be6 21.Nd5 Nf5 22.g3 Nf6 23.Nf6 Bf6 24.Be6 fe6 25.Qb7 Be5 26.de5 Qd2 27.Qc7 Ng7 28.Qc3 Qf2 29.Kh1 Rac8 0–1. Csom – Harestad, Gausdal 1993.

10.Nc3 Bf5 11.d4 (11.0-0 Bd7=) 11...ed4 (11...Qc8 12.h3=) 12.Nd4 Nd7 (12...d5 13.0-0+=) 13.0-0 Be6 (13...Nc5 14.Bf3=) 14.Na4 Nc8 (14...Nf5 15.Ne6 fe6 16.Bg7 Kg7 17.e4+=) 15.Ne6 (15.Qc2 Ncb6+=) 15...fe6 16.Bg7 Kg7 17.Rc1 b6 18.f4 Rb8 (18...Nc5 19.Bf3 Rb8 20.g4+=) 19.Bg4+– Qe7 (19...Qf6 20.e4+–) 20.Bh3 (20.Qd3 Nc5 21.Nc5 dc5 22.Qc3 Kg8+=) 20...Nc5+= 21.Nc5 (21.Rf2 Na4 22.Qa4 e5+=) 21...bc5 (21...dc5 22.Qd3=) 22.Qg4 (22.Qd3!?+=) 22...Nb6= 23.g3 (23.Qg5 Qg5 24.fg5 Rbe8=) 23...Rbe8 24.e4 (24.Qg5 Qg5 25.fg5 Nd7=) 24...Qf6 (24...d5!?=) 25.Qe2+= e5 (25...Qd4 26.Kg2+=) 26.f5 Qg5 27.Rc3 (27.Rcd1 Na4 28.Rd3 Rf7+=) 27...Rf6 (27...Rf7 28.Bg4+=) 28.Kh1 (28.Bg4 h5 29.Bh3 Rg8+=) 28...Ref8 (28...Rh8 29.Bg4+=) 29.g4 (29.Kg2 R6f7+=) 29...Kf7 (29...Nd7 30.Bg2=) 30.Rg1 (30.Bg2 Kg8+=) 30...Ke7 (30...Kg8 31.Bg2=) 31.Bf1+= R6f7 (31...Rg8 32.Rh3+=) 32.Qe1+– Qf4 (32...Rg8 33.Rf3 gf5 34.ef5+–) 33.Rgg3 gf5 34.gf5 Qh4 35.Rce3 (35.Qe2 Qh6+–) 35...a4 36.Qe2 Qf6 37.Qg2 Rd8 (37...Qh6 38.Rh3 Qf4 39.Be2+–) 38.Rg5 Kd7 39.Reg3 Kc8 40.Be2 ½–½. Chandler,Patrick (2085) – Danin,Alexandre (2585), 8. Pfalz Open, 2017. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.c4 e5 7.d3 Nc6 8.a3 a5 9.b5 Ne7)

8.a3 a6

9.0-0 Re8 10.Nc3 d5 11.Qc2 Bg4 12.h3 d4 13.Na4 Bh5 14.Rfe1 de3 15.fe3 Qd6 16.Rad1 Bh6 17.Bc1 e4 18.de4 Qg3 19.Nc3 Rad8 20.Nd5 Rd6 21.Nf6 Rf6 22.Rf1 Ne5 23.Ne5 Be3 24.Kh1 Rf1 25.Rf1 Be2 26.Qe2 Bc1 27.Nd7 Bg5 28.Qf3 Qf3 29.gf3 Rd8 30.Rd1 Kg7 31.c5 Be3 32.Rd5 Bc1 33.a4 Ba3 34.b5 ab5 35.ab5 c6 36.bc6 bc6 37.Rd3 Bc1 38.Kg2 Bf4 ½–½. Schwertel,Gottfried – Deneuville,Christian, corr SOK–98–131, 1999.

9.Nbd2 Re8 10.0-0 d5 11.cd5 Nd5 12.Qc2 Bg4 13.h3 Be6 14.Nc4 Bc8 15.Rad1 b5 16.Ncd2 Bb7 17.Ne4 Rb8 18.Nc5 a5?? (better is 18...Qd6+/–) 19.Nb7+– Rb7 20.Qc6 Rb6 21.Qc1 ab4 22.ab4 Nb4 23.Qa1 c5 (23...Qd6 24.Ba3 Ra8 25.Qb2+–) 24.Ne5 Qd5? 25.Nf3 Rbe6?? 26.Bg7 Nc2 27.Qb2 Ne3 28.fe3 Re3 29.Bh6 (29.Bh6 f6 30.Qf6+–) 1–0. Fournier,Frederic (1865) – alekineback (1780), Active (4/0), 2005.

8.a3 Re8

9.0-0 a6 10.Qc2 Qe7 11.Rd1 Ne4 12.de4 Bh8 13.b5 Nb8 14.b6 cb6 15.Qd3 Nc6 16.a4 Na5 17.Qd6 Qg5 18.Kh1 Re6 19.Qd7 Rc6 20.Rd6 Rd6 21.Qd6 Qh4 22.Bc3 Qg5 23.Qd7 Rb8 24.Qg4 Qg4 25.h4 g5 26.hg5 f5 ½–½. Kucharkowski,Jens – Zednik,Martin, Orang Utan Invitational 2002, 2002.

9.0-0 e4 10.de4 Ne4 11.Bg7 Kg7 12.Nfd2 Qf6 13.Ra2 Bf5 14.Ne4 Be4 15.Nd2 Bf5 16.Bf3 a5 17.b5 Nd8 18.Qa1 Qa1 19.Rfa1 g5 20.h3 Rc8 21.Rc1 b6 22.Bd5 Kf6 23.g4 Be6 24.Ne4 Kg6 25.Ng3 Bd5 26.cd5 Nb7 27.e4 Nc5 28.f3 Kf6 29.Rh2 Nd3 30.Rc6 Ne5 31.Rc3 Ng6 32.Rhc2 Re7 33.Nh5 Ke5 34.Rc6 Nf4 35.Nf4 gf4 36.Rb6 f5 37.ef5 cb6 38.Rc8 Kd5 39.Kf2 h6 40.h4 (40...Rd7 41.Rc6+–) 1–0. Rohde,Friedhelm – Dopper,Johan, corr 3GMM–F, 2001.

8.b5 Ne7

9.0-0 a6 10.a4 a5 11.Nc3 b6 12.d4 ed4 13.Nd4 Bb7 14.Bf3 Qc8 15.Bb7 Qb7 16.Qf3 Qc8 17.Rfd1 Re8 18.Rd2 Qg4 19.Rad1 Qf3 20.Nf3 Nf5 21.Nd5 Nd5 22.cd5 Bb2 23.Rb2 Re7 24.Rc2 Kf8 25.Rdc1 Rc8 26.Rc6 Rd7 27.Rb6 Ne7 28.Ra6 Nd5 29.Ra5 Ke7 30.Ra7 Kd8 31.Nd4 Nb6 32.a5 Nd5 33.a6 Nb6 34.Nc6 Ke8 35.Rb7 Na8 36.a7 Nb6 37.Rb8 1–0. Bonetti,Shane – guest1487, ICC, 2002.

9.0-0 a6 10.Nc3=.

9.0-0 c6 10.Nc3 Qc7 11.d4 Bf5 12.a4 Rfe8 13.a5 Rad8 14.Qb3 Nc8 15.a6 b6 16.bc6 Qc6 17.Nb5 Ne4 18.Bd3 Qd7 19.Qc2 Ng3 20.e4 Nf1 21.ef5 Nh2 22.Kh2 ed4 23.Bd4 Be5 24.Kg1 Bd4 25.Nfd4 (25...d5 26.c5+–) 1–0. marekt – bemweeks, ChessWorld.net, 2003.

9.0-0 c6 10.bc6 bc6 11.c5 e4 (11...Rb8 12.Qc1 Nfd5 13.cd6 Qd6 14.Nbd2=) 12.de4+= Ne4 (12...Rb8!? 13.Bc3 dc5+/–) 13.Bg7+/– Kg7 14.Qd4 Nf6 15.cd6 Nf5 16.Qc3 Qd6 (16...Nd6 17.Qc6 Bb7 18.Qc3+/–) 17.g4+– Ne3 18.fe3 Bg4 19.e4 Bf3 20.e5 Ne4 21.ed6 Nc3 22.Bf3 Nd5 23.Rc1 Rad8 24.Rc6 (24.Rc6 Nb4 25.Rc4+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.0-0 c6 10.Nbd2 Be6=.

9.0-0 Nd7 10.Qc2 f5 11.Nc3 Bf6 12.Nd5 Nd5 13.cd5 Nb6 14.e4 Nd7 15.Nd2 (15.Rfc1 Nc5+=) 15...Nc5 (15...Bg5 16.Nb3=) 16.Nb3 (16.f4 b6+=) 16...b6 17.a4 a6 18.Qc4 Qe8 19.Nc5 bc5 20.ba6 Ba6 21.Qc2 fe4 22.de4 Be2 23.Qe2 Ra4 24.f3 Ra1 25.Ra1 Qb8 26.Qc2 Qb6 27.Bc3 Rb8 (27...c4 28.Kh1+=) 28.Ra3 (28.f4!?=) 28...Bg5 29.Kf1 Kf7 30.Ra2 Qb5 31.Kf2 Ke7 32.Bd2 Bf6 33.Bc3 Qb3 34.Qb3 (34.Qd2 Qc4=) 34...Rb3+= 35.Ba5 Rb7 36.Bd2 Kd7 37.Ke2 c6 38.dc6 Kc6 39.Kd3 Bd8 40.Kc4 Bb6 41.Bc3 Rd7 42.Ra6 Ra7 43.Ra7 Ba7 44.Ba5 Bb6 45.Bd2 Bc7 46.Be1 Bd8 47.Bd2 Bh4 48.Bc3 Bg5 49.Be1 Bf4 50.h3 Bh6 ½–½. Buldrova,Monika – Pirklova,Hana, CZE–ch U16 Girls, 1997. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

9.0-0 Nd7 10.Nc3 f5 (10...a6 11.ba6 Ra6 12.d4=) 11.d4+= h6 12.Qc2 e4 13.Nd2 Nf6 14.f3 ef3 15.Bf3 g5 (15...a6 16.a4+=) 16.Rae1 (16.a4 a6+/–) 16...g4 17.Be2 a6 18.ba6 Ra6 19.c5 Ra5 20.cd6 cd6 21.Qb3 d5 22.Ba3 Rf7 23.Bc5 Ra8 (23...Qd7 24.Nb5+/–) 24.Nc4! Bf8 25.Nd6+– (25.Nd6 Rg7 26.e4 Ne4 27.Nde4 fe4 28.Nd5+–) 1–0. pereira – cooler, internet, 2006.

9.0-0 Nd7 10.Nbd2 a6 11.a4=.

9.0-0 Nd7 10.Nbd2 f5 11.Ng5 (11.Qc2 Nf6+=) 11...Nf6 12.f4 (12.d4 ed4 13.ed4 h6+=) 12...h6= 13.Nh3 Nd7 (13...Ng4 14.Bg4 fg4 15.Nf2=+) 14.e4 (14.Nb3!?+=) 14...c6 (14...Nc5 15.fe5 de5 16.Qc2=+) 15.a4 Nc5 16.fe5 (16.Nb3 Ne6=+) 16...de5 17.Nf2 Ne6 (17...f4 18.Nb3 Ne6 19.Qc2=+) 18.Nf3= Qc7 19.Rb1 (19.ef5 Nf5 20.Qd2 Nc5=) 19...Rd8 (19...Nf4 20.Qd2=+) 20.Qc1 (20.Qd2 Bd7=) 20...Nf4 21.Qc2 cb5 22.ab5 Be6 23.g3+= Ne2 24.Qe2 f4 25.gf4 ef4 26.Bg7 Kg7 27.Qb2 Kh7 28.Qe5 Qe5= 29.Ne5 g5 30.Rbd1 Ng6=+ 31.Nfg4 h5–+ 32.Nf6 Kh6 33.Ng6= Kg6 34.Nd5 Bd5 35.ed5 a5 36.h4 b6 37.hg5= Kg5 38.Rf2 Rf8 39.Re1 Rae8=+ 40.Rfe2 Re2 41.Re2 Kf5 42.Re6 Rf6 43.Re4 Rg6 44.Kh2 a4 45.c5 bc5 46.Ra4 Rb6 47.Rc4 Rb5 48.d6 Ke6 49.Rf4 Kd6 50.Rh4 Kd5–+ 51.Kg3 Rb3 52.Kf2? Rd3 53.Ke2 c4 54.Rh5 Kd4 55.Rh8 Kc3 56.Rc8 Rd7 57.Rc6 Kb3 58.Rb6 Kc2 59.Ke3 c3 60.Rc6 Kb2 61.Rb6 Kc1 62.Rc6 c2 63.Ke2 Rd2 64.Ke1 Rh2 65.Kf1 Rh3 66.Ke2–+ Kb2 (66...Kb2 67.Kd2 Rh2 68.Kd3 c1Q 69.Rc1 Kc1–+) 0–1. Kuhmann,Heinz (1645) – Rabe,Thomas (2005), Nuremberg Zabo op 3rd, 2001.

9.0-0 Ne8 10.Nc3 f5 11.e4 Nf6 12.ef5 gf5 13.a4 Ng6 14.Re1 Kh8 15.Rb1 Qe8 16.d4 e4 17.Bf1 Nf4 18.g3 Rg8 19.gf4 Bh6 20.Ng5 Bg5 21.fg5 Rg5 22.Kh1 Ng4 23.Qd2 Qh5 24.h3 Qh4 25.Re2 Bd7 26.Bg2 e3 27.fe3 Rh5 28.Kg1 Rg8 29.Nd5 Qg3 30.hg4 fg4 31.Nf4 Rgg5 32.Nh5 Rh5 33.d5 Kg8 34.Qd4 Qh2 35.Kf1 Rf5 36.Rf2 Re5 37.Qa7 g3 38.Be5 1–0. machete99 (2165) – Constant (1915), ICC, 2002.

9.0-0 Ne8 10.Nbd2 f5 11.a4 Be6 12.Nb3 h6 13.Qc2 Qd7 14.c5 d5? (better is 14...Bd5=) 15.Ne5+– Be5 16.Be5 Kh7 17.Nd4 Bf7 18.c6 bc6 19.bc6 Qd8 20.Nb5 g5 21.d4 Ng6? 22.Qf5 a6 23.Nc3 Nd6 24.Qg4 Qe7 25.Bd3 Be6 26.Qh5 Bf7 27.f4 Ne4 28.Ne4 de4 29.Be4 Rad8 30.Rf3 Rg8 31.Rh3 Qf8+– 32.fg5 Bd5 33.Qh6 Qh6 34.Rh6# (34.gh6 Be4 35.Bc7 Rc8+/–) 1–0. konto33 – angel2610, kurnik, 2011.

9.0-0 Ne8 10.d4 ed4 11.Nd4 Nf5 12.Qd2+=.

9.0-0 Ne8 10.d4 e4 11.Ng5 (11.Nfd2 f5+=) 11...f5 (11...d5 12.cd5 f5 13.Ne6 Be6 14.de6+/–) 12.Nc3+= h6 (12...Nf6 13.Qc2+=) 13.Nh3 g5 (13...Nf6 14.a4+=) 14.a4 Ng6 (14...Nf6 15.Qc2+=) 15.f3 ef3 (15...Nf6 16.Nf2 ef3 17.Bf3+=) 16.Bf3+/– (16.Rf3?! g4 17.Rg3 Nf6=) 16...Nf6 17.Nd5 Nd5 18.Bd5 (18.cd5? g4–+) 18...Kh8 19.Nf2 (19.Qh5 Qe8+=) 19...g4 (19...f4 20.Qd3 fe3 21.Qg6+=) 20.g3+/– h5 (20...Qg5 21.Qd3+/–) 21.a5 a6 22.Qb3 ab5 23.cb5 (< 23.Qb5 c6 24.Bc6 bc6 25.Qc6 Ra6-/+) 23...c6 24.bc6 bc6 25.Bc6 Ra5 26.Ra5 Qa5 27.Ba3 Qc7 28.Rc1 Qe7 29.Bd5 Bh6 (29...Bd7 30.Rc7+/–) 30.Rc6 (30.Qb6 Qe3 31.Qd6 f4=) 30...Qe3 31.Bd6 (31.Rd6 Qe1 32.Kg2 f4 33.Rg6 f3 34.Bf3 gf3 35.Qf3 Rf3 36.Rh6 Kg7 37.Kf3 Bb7 38.d5 Bd5 39.Kf4 Kh6–+) 31...Qe1 32.Kg2 Be3 33.Qc2 Bf2 (33...Bb7 34.Bf8 Bc6 35.Bc6+=) 34.Qf2 Qf2 35.Kf2 Bb7 36.Bf8 Bc6 37.Bc6 Nf8 38.Be8 Ne6 (38...Kg7 39.Bh5 Kf6 40.Ke3+/–) 39.d5 (39...Nf8 40.Ke3+–) 1–0. van Rooijen,Peter – Szokol,Imre, ER2471 WCCF, 2002.

9.0-0 Bf5 10.Nc3 Nd7 11.Nd2 Nc5 12.Nb3 b6 (12...Nb3 13.Qb3 c6 14.Rab1=) 13.Qc2 (13.d4 Ne4+=) 13...Rc8 (13...a6 14.Nc5 dc5 15.Rfd1+=) 14.Rfd1 Qd7 15.Nc5 bc5 16.Bf3 Bg4 17.Qe2 Bf3 18.Qf3 (worse 18.gf3 Rb8=) 18...c6 19.a4 f5 20.Rab1 Rc7 21.Ba1 Qe6 22.bc6 Nc6 23.Nb5 Rcc8 24.Qd5 Rf6 25.Bc3 a5 (25...Qd5 26.cd5 Ne7 27.e4+=) 26.Nd6 Qd5 27.cd5 Rd6 28.dc6 Rdc6 29.Ba5 Ra6 (29...c4 30.dc4 Rc4 31.Rb4+=) 30.Rb5 Rca8 (30...e4 31.de4 fe4 32.Bb6+=) 31.Bc3+/- Ra4 32.Rc5 Ra3 33.g3 Bf8 34.Rc7 Bg7 (34...Bd6 35.Rc6+/-) 35.Rb1 (35.f4!? Re8 36.e4 Bh8+-) 35...R3a7+/- 36.Rc5 Re8 37.Rd5 Rc7 38.Ba5 Rf7 39.Rbb5 f4 40.gf4 ef4 41.e4 f3 42.h3 Bh6 43.Bc3 (43.Bb4 Rc7 44.Bd6 Rc2+/-) 43...Rc8 (better 43...Rc7 44.Rdc5 Rd7=) 44.Be5 Be3 (44...Re7 45.Rb8 Rb8 46.Bb8+/-) 45.Rb8 (45.fe3 f2 46.Kh2 f1Q 47.Rd8 Rd8 48.Bb8 Rf2 49.Kg3 Rg2 50.Kh4 Qf6 51.Rg5 Qg5) 45...Rb8 46.Bb8 Bb6 47.d4 Kg7 (47...h5 48.h4+-) 48.Kh2 Re7 49.Be5 Kf7 (49...Re5 50.de5 Bf2 51.Rd7 Kf8 52.Rh7+-) 50.Kg3 Bc7 51.Bc7 Rc7 52.Kf3 Rc3 53.Kg2 Ke6 54.f3 Rd3 55.Kg3 h6 56.h4 Rd2 57.h5 g5 (57...gh5 58.f4+-) 58.Rd8 Ke7 (58...Kf7 59.Rd7 Ke6 60.Rh7 Rd4 61.Rh6 Ke5 62.Rg6+-) 59.Rh8 Rd4 60.Rh6 Rd1 61.Rg6 1-0. Pantzar,Milton (2390) - Ziegler,Nathalie (1785), Deltalift Open, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

9.0-0 Ng4 10.h3 Nh6 11.Nc3 c6 12.Rb1 f5 13.a4 Nf7 14.Nd2 d5 15.bc6 bc6 16.cd5 cd5 17.Ba3 Re8 18.Nb3 d4 19.ed4 ed4 20.Na2 Be6 21.Nb4 Nd5 22.Nd5 Bd5 (worse 22...Qd5 23.Bf3 Qd8 24.Bc6+-) 23.Bf3 Rb8 24.Nd2 Rb1 25.Qb1 Ne5 26.Bd5 Qd5 27.Rc1 Bh6 28.Rc5 Qe6 29.Nc4 Nd7 30.Rb5 f4 (30...Bf4 31.g3 Bb8 32.Qb2 Bg3 33.Qd4=+ (33.fg3?? Qe1 34.Kg2 Re2 35.Qe2 Qe2 36.Kh1 Qd3-+)) 31.Nd2 Ne5 32.Qb3 Qb3 33.Rb3 (worse 33.Nb3 a6 34.Rb7 Nd3 35.Nd4 Re1 36.Kh2 Nf2 37.Rb8 Kf7 38.Rb7 Ke8-/+) 33...f3 34.Nf3 Nf3 35.gf3 Re1 36.Kg2 Rd1? (better 36...Ra1!?+=) 37.Bc5+- Bg7 (37...a5!? 38.Bd4 Bf8 39.Rb5 Rd3 40.Bb6+-) 38.Ba7 Rc1 (38...Be5 39.f4! Bf6 40.a5+-) 39.a5 (better 39.Rb8 Kf7 40.Rb7 Kg8 41.Rd7+-) 39...Rc3?? (39...Rc2+-) 40.Rb8 Kf7 41.Rb7 Kg8 (41...Ke6 42.Rg7 Rd3 43.Bc5+-) 42.Rg7! (42.Rg7 Kf8 43.Rh7+-) 1-0. Pantzar,Milton (2390) - Sjoberg,Isak (2205), Kvibergspelen, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

9.0-0 h5 10.Qc2 Nh7 11.d4 ed4 12.Nd4 Nf5 13.Nd2 Ng5 14.N2f3 Nf3 15.Bf3 (15.gf3? Nd4 16.ed4 Bh3–+) 15...Qg5 16.Nf5 Bf5 17.Qd2 Bb2 18.Qb2 Rab8 19.Qa3 Be6 20.Rac1 Qc5 21.Qc5 dc5 22.Bd5 Bd5 23.cd5 b6 24.a4 a6 25.Rfd1 Rfe8 26.Kf1 Re4 (26...ab5 27.ab5 Rbd8 28.Rc4=) 27.Ra1 (27.ba6!? Ra8 28.a5 Ra6 29.ab6 cb6 30.d6+=) 27...ab5 28.ab5 Rb4 29.Rab1 Rb1 30.Rb1 Ra8 31.Rb2 Kf8 ½–½. Buldrova,Monika – Cedikova,Katerina, CZE–ch (Women), 1997. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

9.0-0 h6 10.Nc3 Bd7 11.a4 Nh7 12.d4 ed4 13.Nd4 f5 14.Qb3 Kh8 15.Rad1 Qe8 16.Rfe1 g5 (16...Ng5 17.a5+/–) 17.c5 dc5 18.Ne6 Be6 19.Qe6 Nc8 (19...c6 20.Rd7 Ng6 21.Qe8 Rfe8 22.Rb7 cb5 23.ab5+/–) 20.Qe8 (20.Qd5!? Nd6 21.Qc5+/–) 20...Re8+= 21.Rd7 Be5 22.Rd5 Kg8 23.Rc5 Nb6 24.Rd1 Nf6+= 25.a5 Nbd7 26.Rc4 Red8 27.f4+/– Bd6 28.Bf3 Rab8 29.Nd5 Nd5 30.Rd5+– Rf8 31.Rc7! (31.Rc7 Bc7 32.Rd7+–) 1–0. Enders,P (2485) – Langheinrich,F (2245), Open, Bad Zwesten GER, 1999.

9.0-0 h6 10.Nbd2 g5 11.c5 (11.h3 a6+=) 11...Ng6 (11...g4 12.Nh4=) 12.cd6+= cd6 13.Nc4 Ne8 (13...a6 14.Qa4+=) 14.Qa4 (14.h3 Be6+/–) 14...f5 (14...g4 15.Nfd2 d5 16.Na3=) 15.Nfd2 (15.d4 g4 16.Nfd2 ed4 17.Bd4 Bd4 18.ed4 Nf6+/–) 15...f4 (15...d5!? 16.Na3 Nd6+=) 16.d4 (16.Rac1 g4 17.d4 ed4 18.ed4 f3 19.gf3 Nf4+=) 16...g4 (16...ed4 17.ed4 d5 18.Ne5 Ne5 19.de5+/–) 17.de5 d5 18.Na3 (18.Bd3 dc4 19.Bg6 Qd2 20.Qc4 Kh8+–) 18...f3? (better is 18...Ne5!? 19.ef4 Nf3 20.gf3 Bb2=) 19.gf3+/– gf3 (19...Ne5!? 20.fg4 Qh4+–) 20.Nf3+– Bh3 21.Kh1 Nc7? (21...Bf5 22.Nd2 Be5 23.Be5 Ne5+–) 22.Rg1 Bf5 23.Rg3 (23.Nb1 a6 24.ba6 Na6+–) 23...Ne6 24.Rag1 (24.Nd4 Nd4 25.Qd4 Re8+–) 24...Kh7 25.Nb1 (25.Nd4 Nc5 26.Qb4 Ne4+–) 25...Rf7?? (25...Nc5 26.Qd1 Ne4+–) 26.Rg6! (26.Rg6 Bg6 27.Rg6 Rf3 28.Rg7 Kg7 29.Bf3+–) 1–0. Sluka,Radek (2340) – Brychta,David (2105), Rymarov op, 1999. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

9.0-0 h6 10.Nfd2 Ne8 11.d4 ed4 12.Bd4 Bd4 (12...Nf6 13.Nc3=) 13.ed4+= d5 (13...Nf6 14.Nc3+=) 14.Nc3 (14.c5 Nf6+=) 14...dc4 15.Nc4 Nf5 16.d5 Ned6 17.Rc1 (17.Re1 Re8+=) 17...Bd7 (17...Re8 18.Nd6 Nd6 19.Qd4=) 18.Ne5 Re8 19.Nd7 Qd7 20.Re1 Re5 21.Bf1 Re1 22.Qe1 Re8 23.Qd1 Qe7 24.Qa4 Qg5 25.Rb1 Qd2 26.Qa3 Nd4 27.Qc1 Qc1 28.Rc1 Kf8 29.Bd3 Ke7 30.f3 Kd7 31.Kf2 Re7 32.Rb1 N4f5 (32...c5 33.bc6 bc6 34.Rc1=) 33.g4 Ng7 34.Rb4 Nge8 35.Ra4 ½–½. Gaprindashvili,V (2370) – Omidi,Arya (2395), Fuad Jafarov Mem, 2018. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

9.a4 a5 10.0-0 b6 11.Qc2 Ne8 12.d4 ed4 13.Nd4 d5 (13...Bb7!?+=) 14.Rd1+/– Nf5 (14...Nd6!?+/–) 15.Nc6+– Qg5 16.Bg7 Neg7 17.cd5 Nh4 (17...Bb7 18.Bf3+–) 18.g3 Bf5 (18...Re8+–) 19.e4 Bh3 20.Qd2 Qf6 21.Ra3 (21.gh4?! Qa1 22.Qc3 A) worse is 22...Qa4 23.Nd2+/– (worse is 23.Qh3 Qe4 24.Nc3 Qc2+/–); B) 22...Qc3 23.Nc3 Rae8=) 21...Nh5 (21...Rae8 22.e5 (worse is 22.gh4 Qh4 23.Nc3 Bd7+–) 22...Qf5 23.gh4+–) 22.e5 Qf5 (22...Qg7 23.gh4 Bf5+–) 23.Ne7 (23.Ne7 Kh8 24.Nf5 Nf5 25.g4 Bg4 26.Bg4+–) 1–0. PeterRs – craig4000, ChessWorld.net, 2015.

9.Nc3 b6 10.0-0 Bb7 11.Qc2 Nd7 12.h3 f5 13.Ng5 Rf6 14.Nd5 Nd5 15.cd5 Bd5 16.d4 h6? (better is 16...Qb8=) 17.Bc4+– Bc4 18.Qc4 Kh8 19.de5 Ne5 20.Be5 de5 21.Nf7 Rf7 22.Qf7 Qd6 23.Rad1 Rf8 24.Rd6 Rf7 25.Rg6 Rf6?! 26.Rf6 Bf6 27.Rd1 Kg8 28.Rd7 1–0. Fournier,Frederic (2100) – Xvivx, chessworld.net (T70209), 2008.

9.Nc3 Bg4 10.0-0 (10.d4 ed4 11.Nd4 Be2 12.Qe2 c5 13.Nb3 a5 14.Rd1 Qc7 15.a4 Rad8 16.Qf3 Nd7+= 0.56; 10.a4 a6 11.0-0 Re8 (11...h6 12.d4 ab5 13.ab5 Ra1 14.Ba1 ed4 15.Nd4 Qd7 16.Bf3 Ra8= 0.22; 11...Qd7 12.d4 ab5 13.ab5 Ra1 14.Ba1 ed4 15.ed4 Re8 16.Re1 d5= 0.22) 12.a5 Qd7 13.b6 cb6 14.ab6 Nc8 15.Na4 Qd8 16.Qb3 Bd7= 0.06) 10...h6 (10...a6 11.a4 Re8 12.a5 ab5 13.cb5 c6 14.Qa4 cb5 15.Qb5 Bd7 16.Qb3 Nc6= –0.19) 11.a4 (11.d4 ed4 (11...Nd7 12.de5 de5 13.Qc2 f5 14.Rad1 a6 15.ba6 ba6 16.Rd2 Qe8+/– 0.72) 12.Nd4 Be2 13.Qe2 a6 14.a4 Nd7 15.Rfd1 Re8 16.a5 Nc5+= 0.34) 11...Qd7 (11...a6 12.d4 ab5 13.ab5 Ra1 14.Ba1 ed4 15.Nd4 Qd7 16.Bf3 Ra8= 0.22) 12.d4 ed4 13.Nd4 (13.ed4 Rfe8 14.Re1 a6 15.a5 ab5 16.cb5 Ned5= 0.19) 13...Be2 (13...Rfe8 14.a5 a6 15.Bf3 c5 16.Nb3 Qf5= 0.25) 14.Qe2 Rfe8 (14...Qg4 15.Qg4 Ng4 16.a5 Ne5+= 0.28) 15.Rfd1 (15.a5 Nf5 16.Qf3 Nd4+= 0.44) 15...Nf5 (15...Qg4 16.Qg4 Ng4= 0.25) 16.Nb3 (16.Qf3 Nd4+= 0.37) 16...Qe6 (16...c6= 0.22) 17.Na5 Rab8 18.Rac1 Ne4 19.Nd5 Bb2 20.Qb2 c6 21.Nb4 Nh4 22.f3 (22.bc6 Qg4 23.g3 Nf3 24.Kg2 Neg5–+) 22...Nc5 23.e4 Na4 24.Qf2 g5 (better is 24...Qe5+=) 25.bc6+– (worse is 25.Qa7 c5 26.Nbc6 bc6 27.Nc6 Ra8+=) 25...bc6 26.Nac6 Rb7 27.Qd4 Rc8 28.Ra1 a5 29.Nd5 Rc6 30.Ra4 Rc5 31.Nf6 Kf8 32.Ng4 Ke7 (32...Rb4 33.Rb4 ab4 34.Ra1+–) 33.e5+– Re5 34.Ne5 Qe5 35.Qe5 de5 36.Rd2 Rb1 37.Kf2 Rc1 38.Ra5 Rc4 39.Re5 Kf6 40.Re4 Rc1 41.Ra4 Rc6 42.Rda2 Kg7 43.Ra6 Rc3 44.R6a3 Rc6 45.Re3 Rb6 46.g3 Nf5 47.Re4 Rb3 48.Rea4 Rc3 49.R4a3 Rc1 50.Kg2 Rb1 51.Rd3 Rb4 52.Ra5 Kg6 53.Ra6 Kg7 54.Kh3 h5 55.Ra2 Kg6 56.Re2 g4 57.fg4 hg4 58.Kg2 Rb5 59.Rd8 Nh6 60.Rd6 f6 61.Ree6 Rf5 62.Rd7 Nf7 63.Re8 Nh6 64.Ree7 Ra5 65.Rg7 Kf5 66.Rd2 Ra4 67.Rf2 Ke6 68.Rh7 Nf5? (better is 68...Nf7+–) 69.Re2 Kd5 (69...Kd6 70.Rf7 Ra5+–) 70.Rh5 1–0. Khurtsidze,N (2445) – Hairapetian,A (2225), European Ind w, 2012. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 e5 6.d3 0-0 7.Be2 Nc6 8.b5 Ne7)

9.Nc3 h6 10.0-0 c5 11.bc6 (11.a4 a6=) 11...Nc6= 12.Qb3 b6 (12...Re8 13.Rfb1=) 13.Nd2+= Bb7 14.Ba3 Re8 (14...Rc8 15.Rab1+=) 15.Nde4 Ne4 (15...Na5 16.Qc2 Re6 17.Nf6 Qf6 18.e4=) 16.Ne4 (16.de4 Na5 17.Qc2 Bc6+=) 16...Re6 17.Nc3 (17.Rfb1 Na5 18.Qb4 Nc4 19.Qc4 d5=) 17...Kh7 (17...Rc8 18.Nd5=) 18.Rad1 (18.Nd5 Ne7=) 18...f5 (18...Rc8 19.Nd5=) 19.Nd5 (19.c5 Qd7 20.cd6 Na5+=) 19...Ne7 (19...Qd7 20.Rb1=) 20.Rc1 (20.d4 Rc8=) 20...Rc8 21.Bf3 Qd7 (21...Bc6 22.Bb4=) 22.Rc2 (22.Ne7 Qe7 23.Bd5 Rf6=) 22...h5 (22...Nd5 23.Bd5 Rf6 24.Bb7 Qb7 25.Rb1=) 23.Rfc1 (23.Ne7 Qe7 24.Bb7 Qb7+=) 23...e4 24.de4 (24.Bd1 Nd5 25.cd5 Ree8=) 24...fe4= 25.Be2 Rf8 (25...Nd5 26.cd5 Rc2 27.Rc2=) 26.Bb2 (26.Nf4 Re5+=) 26...Bb2 27.Qb2 Re5 28.Nc3 (28.Nf4 Rc5+=) 28...Rg5 29.Nd5 (29.Nb5 Nc8=) 29...Qf5 (29...Bd5 30.cd5 Nd5 31.Bc4=+) 30.Nf4= Qf7 (30...Qf6 31.Rd1=) 31.Rd1+= d5? (better 31...Qf6+=) 32.cd5+– Nd5 33.Bc4 Rf5? (33...Rc8 34.h4 Rf5 35.Bd5 Rd5 36.Nd5 Rc2 37.Nf6 Kh6 38.Qc2 Qf6+–) 34.Rcd2 Rd8 (34...Qf6 35.Nd5 Qb2 36.Rb2+–) 35.Qb3 g5 (35...Rg5+–) 36.Nd5 b5 (36...Rdd5 37.Bd5 Bd5 38.Rd5 Rd5 39.Rd5+–) 37.Qb5 (better 37.Nf6 Qf6 38.Rd8+–) 37...Rc8 (37...Rd6 38.Qc5 Rc6 39.Qd4+–) 38.Bb3 (better 38.Nf6! Kh6 39.Qf5+–) 38...Kh6 (38...Bc6 39.Qa6 Bb7 40.Qa3 Bd5 41.Bd5+–) 39.Qe2 (39.Qa4!? Rc5 40.Nb6 Qg6 41.Qa7 Rc6+–) 39...a5 (39...Qe8+–) 40.Nb6 (40.Nb6 Qg6 41.Nc8+–) 1–0. Ivanchuk,Vassily (2745) – Li,Chao2 (2720), World Blitz, 2016.

9.Nbd2 a6 10.0-0=.

9.Nbd2 a6 10.a4 b6 11.0-0 Bb7 12.Qc2 Re8 13.d4 ed4 14.Nd4 c5 15.N4f3 d5 (15...Qd7 16.a5=) 16.Rfd1+= ab5 17.ab5 Ra1 18.Ra1 Nf5 19.cd5 Nd5 (19...Bd5 20.Bc4+=) 20.Bg7 Kg7 21.Qb2 (21.Ra7 Qb8 22.Ra4 Qd6+=) 21...Qf6= 22.Qf6 Nf6 (22...Kf6 23.Ra7 Re7 24.Bd3=) 23.Nc4+= Bf3 24.Bf3 Re6 25.Rd1 Ne4 (25...h5 26.Bb7+=) 26.Rc1 Nf6 27.Kf1 h5 28.h3 Ne7 (28...h4 29.Bb7 Nd6 30.Bc6+=) 29.Rd1 Nc8 30.Bb7 Na7 31.Ba6 Re4 32.Nb6 (32.Nd6 Re6+=) 32...Nb5 33.Rb1 (33.Bb5 Rb4) 33...Na3= 34.Rb3 Rb4 35.Rb4 (35.Ra3 Rb6 36.Bd3 Nd7=) 35...cb4=+ 36.Na4 Nd7 (36...b3 37.Ke2 Ne4 38.Bb7=) 37.Ke2 Kf6 38.f4 (38.Bb7 Ke6=+) 38...Ke7 (38...h4 39.Kd3=+) 39.g4 Kd6 (39...hg4 40.hg4 f5 41.gf5 gf5 42.Bd3=) 40.gh5 gh5 41.h4 (41.e4 Kc6=) 41...Kc6 42.Kd2 Nb5 43.e4 Nc5 44.Nc5 Kc5 45.e5 (45.Kd3 Kb6 46.Bb5 Kb5-/+) ½–½. Myrberg,Johnny – Dopper,Johan, corr 3GMM–F, 2001.

9.Nbd2 a6 10.a4 Be6 11.0-0=.

9.Nbd2 h6 10.0-0 Bf5=.

9.Nbd2 h6 10.a4 Nd7 11.0-0+= f5 12.e4 (12.a5 a6+=) 12...Nc5= 13.ef5 gf5 (13...Nf5 14.Ne4 Ne6 15.a5=) 14.Nh4 (14.d4 e4 15.Ne5 Ne6–+ (15...de5?! 16.dc5 Be6 17.Re1=)) 14...Bf6 (14...Nd5 15.Nhf3 Ne7 16.d4=) 15.Nhf3 Ng6 (15...Be6 16.d4 e4 A) < 17.dc5 Bb2 18.cd6 cd6–+ (18...ef3?! 19.de7 Qe7 20.Bf3 Ba1 21.Qa1=+; 18...Qd6?! 19.Rb1 ef3 20.Nf3–+); B) 17.Ne5=) 16.Nb3 (16.d4 e4 17.dc5 Bb2–+) 16...Ne6 (16...Nb3 17.Qb3 Nf4 18.Rae1=) 17.Re1+= Qe7 18.Kh1 Qg7 19.Rg1 (19.d4 Ngf4 20.Bf1 e4=) 19...Bd7 (19...Ngf4 20.a5=) 20.Bf1 (20.a5 Ngf4=) 20...Rae8 21.Bc3 (21.d4 c5 22.de5 de5=) 21...Kh7 22.Qc2 c5 23.a5 Ng5 24.Nbd2 Nf3 25.Nf3 e4 26.Bf6 Qf6 27.Be2 ef3 28.Bf3 Bc8 29.g3 Kh8 30.Qd2 Ne5 31.Bd5 Re7 32.h3 Be6–+ 33.Bg2 f4 34.Kh2 Bf5 35.Rge1 Bd3 36.Bd5 fg3 (37.fg3 Kg7–+; 36...Bc4 37.gf4 Bd5 38.Qd5 Qf4 39.Kh1–+) 0–1. Owen,R – Wagner,Claude (2415), Las Vegas Seniors, 1995.

9.Nbd2 h6 10.a4 Re8 11.0-0=.

9.Nbd2 h6 10.Rc1 Be6 11.c5 Nd7 (11...Ba2!? 12.e4 Nd7=+) 12.cd6= cd6 13.Nc4 Nb6 14.0-0 e4 (better 14...a6 15.a4 ab5 16.ab5 f5=) 15.de4?? (better 15.Nd4 ed3 16.Bd3+=) 15...Bc4-/+ 16.Bg7 Be2 17.Qe2 Kg7 18.Rfd1 Rc8 19.Rb1 (19.Qb2 Kg8-+) 19...Qc7 20.h4 (20.Qd2 Nc4 21.Qd4 Kg8 22.Qa7 Qc5-+) 20...Nd7 21.h5 Ne5 22.Nh2 Qc2 23.Qe1 (23.Qc2 Rc2 24.Rd6 Ra2 25.hg6 N7g6-+) 23...Nd3 (23...Nc4 24.Nf3-+) 24.Qf1 (better 24.Qd2 Qd2 25.Rd2-+) 24...gh5?? (better 24...Nc5 25.Rbc1 Qa2-+) 25.Rd3 Ng6 26.Rd6 Qe4 27.Rbd1 h4 28.R6d4 Qe6 29.Nf3 h3 30.gh3 Qa2 31.Rg4 (31.Rd7 Qe6 32.R1d6+/- (32.Rb7 Qe4 33.Ra7 Qf3-/+)) 31...Kh7 32.Qd3 Rcd8 33.Qd8 (33.Nd4!?+=) 33...Rd8=+ 34.Rd8 Qb1 35.Kg2 Qb5 36.Ra8 a5 37.h4 b6 38.Ra7 Kg7 39.Nd4 Qd5 40.f3 h5 (better 40...Kf6!?-/+) 41.Rg5= Qa2 42.Kg3 Qd2 43.Rh5 Qe1 44.Kh3 Qe3?? (better 44...Qf1 45.Kg4 Qg1 46.Kh3 Nf4 47.ef4 Qd4=) 45.Nf5+- Kf6 46.Ne3 Nf4 47.Kg4 Nh5 48.Kh5 Ke5 49.Kg4 Kd4 50.Nf5 Kc5 51.Rf7 (better 51.h5 b5+-) 51...b5 52.Ra7 (better 52.h5 Kd5+-) 52...a4 53.Ne3 (53.h5 Kb6 54.h6 Ka7+-) 53...Kd4 54.Nc2 Kc3 (54...Kc3 55.Rc7 Kd2+-). bjoernsen (2440) - MaxBouaraba (2505), Rated blitz game, lichess.org, 2021.

9.Nbd2 Nd7

10.Qc2 a6 11.b6=.

10.Qc2 f5 11.0-0 h6 (11...a6 12.Rac1+=) 12.Nb3 (12.h3 Rb8+=) 12...Nf6 (12...a6 13.a4+=) 13.Nfd2 Kh7 (13...c6 14.Rfc1=) 14.Rfe1 Be6 15.a4 Rc8 (15...c5 16.h3+=) 16.Bf3 (16.d4 e4+=) 16...b6 17.a5 g5 (17...c6 18.bc6 Nc6 19.ab6 ab6 20.g3+=) 18.ab6 ab6 19.Be2 (19.h3 Kg8+/–) 19...Ng6 (19...Ra8 20.Ra8 Qa8 21.Ra1+=) 20.d4 ½–½. Tu Hoang Thong (2510) – Nguyen Anh Dung (2555), VIE–ch Can Tho, 2001. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7)

10.Qc2 f5 11.Ng5 Nc5 12.d4 h6 13.dc5 hg5 14.Rd1 g4 15.cd6 cd6 16.Nb3 Be6 17.Ba3 Nc8 18.Qd2 Rf7 19.Nc5 Qe8 20.Ne6 Qe6 21.c5 dc5 22.Bc5 Nb6 23.0-0 Rc7 24.Rc1 Rac8 25.Bb6 Qb6 26.g3 Kh7 27.a4 Qe6 28.Rc7 Rc7 29.Rd1 Re7 30.a5 f4 31.Qd5 Qf6 32.ef4 ef4 33.Bg4 fg3 34.hg3 Rf7 35.Rd2 Bh6 36.Re2 Rg7 37.Qe6 Qa1 38.Kg2 Qa5 39.Qd5 Qc7 40.Ra2 b6 41.Re2 Re7 42.Re6 Re6 43.Qe6 Bf8 44.Bf3 Qe7 45.Qh3 Kg7 46.Qg4 Qf6 47.Bd5 Bc5 48.Qd7 Qe7 49.Qc8 Qf8 50.Qb7 Qe7 51.Qa8 Bd4 52.Be4 Qf7 53.Qb7 ½–½. Fochtler – Pieper, 1993.

10.d4 ed4 11.Bd4 Ne5 12.Qb3 Nf5 13.Bb2 Nh4 14.Nh4 Qh4 15.Nf3 Nf3 16.Bf3 Bb2 17.Qb2 a6 18.0-0 Qc4 19.Rfc1 Qb5 20.Qb5 ab5 21.Rc7 Be6 22.Rb7 Bc4 23.Bc6 Rfb8 24.Rb8 Rb8 25.e4 (25.a3!?=) 25...Rc8-/+ 26.Bd5 Bd5 27.ed5 Rc2 28.g3 Rd2 29.a4 ba4 30.Ra4 Rd5 31.Kg2 h5 32.Kf3 Kg7 33.h4 Kf6 34.Ra7 Ke6 35.Ra8 Rf5 36.Ke3 Re5 37.Kf3 Kd5 38.Ra7 Rf5 39.Ke3 Kc4 40.Rc7 Kd5 41.Ra7 Ke6 42.Ra8 Rb5 43.Kf4 Rb4 44.Ke3 Ke5 45.Re8 Kf5 46.Re7 Rb3 47.Ke2 Kf6 48.Ra7 d5 49.Rd7 Ke6 50.Rd8 Rb7 51.Ke3 Ke5 52.Re8 Kd6 53.Rd8 Rd7 54.Ra8 Re7 55.Kd3 Re4 56.Rd8 Ke6 57.Re8 Kf5 58.Rd8 Re5 59.f3 Kf6 60.Kd4 Re2 61.Rd6 Kg7 62.Rd5 Rg2 63.Ke3 Rg3 64.Kf2 Rh3 65.Rd4 Rh2 66.Kg3 Re2 67.Ra4 Kf6 68.Ra7 Ke6 69.Ra8 Kf5 70.Rf8 f6 71.Rh8 Re5 72.Rf8 Re7 73.Rh8 Ke6 74.Rg8 Kf7 75.Ra8 g5 76.Ra6 Kg7 77.Ra5 Kg6 78.Ra6 Kf5 79.Ra5 Re5 80.Ra4 Re3 81.Ra5 Kg6 82.hg5 fg5 83.Ra6 Kf5 84.Ra5 Re5 85.Ra8 h4 86.Kg2 Re2 87.Kh3 Rf2 88.Rf8 Ke6 0–1. Paredes Galan,Angel (2285) – Paunovic,Dragan (2475), La Coruna op, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d3 e5 7.Be2 Nc6 8.b5 Ne7)

10.d4 f6 11.0-0 b6 12.a4 Bb7 13.Nb3 e4 14.Nfd2 f5 15.Qc2 Nf6 16.c5 Bd5 17.a5 Nc8 18.Rfc1 Ne8 19.Nb1 Qg5 20.Nc3 Bf7 21.Ba3 Nf6 22.Bb4 Nd5 23.Nd5 Bd5 24.ab6 cb6 25.cb6 Nb6 26.Bd6 Rfc8 27.Qb2 Qf6 28.Be5 Qe6 29.Nc5 Rc5 30.Rc5 Nd7 31.Bg7 Kg7 32.Rc7 Kh6 33.Raa7 Ra7 34.Ra7 Nb6 35.Qa3 Nc8 36.Qf8 Kg5 37.h4 Kh4 38.Qh6 1–0. Muniz,Alberto – Crespo Varela,Salvador, Galiza–ch (Lalin), 2000.

7.d3 Nbd7

8.0-0 c5 9.b5 b6 10.a4 Bb7 11.Nbd2 Qe7 12.e4 Nh5 13.g3 f5 14.Nh4 (14.ef5 gf5 15.Ne5 Ng3 (< 15...de5 16.Bh5 a6 17.Re1+=) 16.fg3 Ne5=+) 14...fe4 (14...Nf4 15.a5=+) 15.Ne4 (15.Bh5!? gh5 16.de4+=) 15...Nhf6=+ 16.f3 Ne4 17.fe4 Nf6 18.Nf3 Ng4 19.Bc1 h6 20.Nh4 Rf1 21.Qf1 Rf8 22.Nf3 g5 23.h3 Nf6 24.g4 Nd7 25.Qg2 Rf7 26.Bd2 Nf8 27.Rf1 Ng6 28.Kh2 Nf4 29.Bf4 ef4 30.Bd1 Qe6 31.Qe2 Be5 32.Kg2 Rd7 33.Bc2 Bf6 34.Bd1 Re7 35.Re1 Bc3 36.Rf1 d5 37.cd5+= Bd5? 38.Qc2+– Bd4 39.ed5 Qd5 40.Rf2?? Bf2= 41.Kf2 Re3 42.Qc4 Qc4 43.dc4 Rc3 44.Be2 Kg7 45.Ke1 Ra3 46.Bd1 Kf6 47.h4 gh4–+ 48.Nh4 Rh3 49.Nf5 h5 50.Nd6 hg4 51.Bg4 Re3 52.Kf2 Ra3 53.Bd1 Ke5 54.Nf7 Kd4 55.Nd6 Ra1 56.Ke1?? f3–+ 57.Nf5 Kc4 58.Ne3-/+ Kc3 59.Nf1 f2! 60.Ke2 Ra2 61.Ke3 c4 62.Be2 Ra4 63.Kf2 Ra2 0–1. Fournier,Frederic (1640) – negrobuin, Active, 2008.

8.0-0 Re8 9.e4 a5 10.ba5 Ra5 11.Bc3 Ra8 12.Nbd2 Nc5 13.h3 Na4 14.Rc1 (14.Nb1!?=+) 14...Nc3-/+ 15.Rc3 Ra2 16.Qb1 Ra8 17.Qb2 b6 18.Ng5 h6 19.Ngf3 Nd7 20.Ra1 Bb7 21.Ra8 Qa8 22.Ra3 Qb8 23.Qc2 Nc5 24.Ra1 Bc6 25.Qa2 (25.Nb1 f5 26.Nc3 Rf8-/+) 25...Ne6 26.g3 h5 27.h4 Bh6 28.Kg2 Nc5 29.Nb3 Nb3 30.Qb3 Qb7 31.Kg1 Ra8 32.Ra8 Qa8 33.Qb2 (33.Qd1 Qd8-/+) 33...Qa5 (33...f5!? 34.Nd2 Qa5 35.Nf1 fe4 36.de4 Be4 37.Qb3-+) 34.Kh2 Qc5 35.Bf1 b5 36.d4 (36.cb5!? Qb5 37.Qe2-+) 36...ed4 37.cb5 Be4 38.Ne1 Qd5 39.Kg1?? (39.Bd3-+) 39...d3 40.Nd3 Bd3 41.Bd3 Qd3 42.Kh2 (42.Kg2 d5-+) 42…Qf3 0-1. conoRJ (2430) - cheese101 (2500), Rated bullet game, lichess.org, 2020.

8.0-0 h6 9.Qc2 (9.d4 a5 10.a3 ed4 11.Nd4 Ne5=) 9...Nh7 (9...Re8 10.a3=) 10.Nc3+= f5 (10...Re8 11.a3+=) 11.d4 e4 12.Nd2 Ndf6 13.a4 (13.Rad1 Ng5+=) 13...Kh8 (13...a5 14.b5+=) 14.a5 Be6 (14...Ng5 15.Nd5+=) 15.d5 (15.a6 Rb8+/–) 15...Bf7 (15...Bc8 16.Ra2+/–) 16.Na4 (16.a6 Qb8+/–) 16...Qe7 (16...c6 17.dc6 bc6 18.Nc3+=) 17.Bd4 (17.a6 b5 18.Nc3 bc4 19.Bc4 Rab8+=) 17...g5 (17...c6 18.dc6 bc6 19.c5+=) 18.Rac1 (18.f3 c6+/–) 18...f4 (18...c6 19.dc6 bc6 20.c5+/–) 19.Nc3+/– Bg6 20.c5 Qf7 (20...Bf5 21.a6 ba6 22.Ba6+/–) 21.Bc4 f3 22.g3 Qd7 23.Rfd1 Qh3 24.Bf1 Qh5 25.Qb2 Rf7+/– 26.Rc2 Bf5 27.Rdc1 Re7 28.cd6+/– cd6 29.Nb5 Bh3 30.Rc7?? Rae8? 31.Nd6 Ng4?? 32.Bg7 Kg8 33.Re7 Rd8 34.Bh8 Nhf6 35.Bf6 Bf1 36.Rg7 Kf8 37.Rf7 Kg8+– 38.Rg7 Kf8 39.Be7 1–0. Dyga,Ryszard – Wallrabenstein,Udo, Karl Mala mem op, 1997.

8.Qc2 b6 9.Nbd2 Bb7 10.0-0 Re8 11.Rab1 e4 12.Nd4 ed3 13.Qd3 Ne4 14.N2f3 a5 15.a3 Ne5 16.Qc2 Ng5 17.Nd2 c5 18.Nb5 Nh3 19.Kh1 Qh4 (better is 19...ab4!? 20.ab4 Qd7+= (< 20...cb4 21.f4+/–)) 20.f3+/– (20.Nd6 Nf2 21.Rf2 Qf2–+) 20...Nf2 21.Kg1 Bh6 22.Rf2 Be3 23.Rbf1 Rad8 24.ba5 ba5 25.Qc3 Bf2 26.Rf2 f6 27.f4 d5?? 28.cd5 Rd5 29.fe5 Rde5 30.Bc4 Kg7 31.Nd6 R8e7 32.Nb7 Rb7 33.Nf3 (33.Nf3 Qf4 34.Ne5 Qe5 35.Rf6 Qc3 36.Bc3+–) 1–0. Todor,Razvan (2165) – Kajnih,Danilo (2240), Eger, 1994.

8.Qc2 c6 9.Nbd2 Qe7 10.0-0 Rd8 11.Rab1 a5 12.a3 d5 13.cd5 Nd5 14.ba5 Ra5 15.Nc4 Ra8 16.Rfc1 f6 17.a4 Bf8 18.Ba3 Qe6 19.Bf8 Nf8 20.d4 e4 21.Nfd2 f5 22.Nb6 Nb6 23.Rb6 Qe7 24.Rcb1 Nd7 25.R6b2 Nf6 26.Nc4 Kg7 27.Nb6 Ra7 28.Bc4 Be6 29.Be6 Qe6 30.Qc5 Ra6 31.a5 f4 32.Nc4 Nd5 33.Rb7 Kg8 34.Rb8 Ra8 35.Rd8 Rd8 36.h3 Rf8 37.Qd6 Qd6 38.Nd6 fe3 39.fe3 Ne3 40.a6 Ra8 41.Rb6 Nd5 42.Rc6 Nb4 43.Rc8 Rc8 44.Nc8 Na6 45.Kf2 Kf7 46.Nd6 Ke6 47.Ne4 h6 48.Ke3 Nc7 49.Nc3 Ne8 50.Ne2 g5 51.Nc3 Nf6 52.g4 Ne8 53.Ne4 Nc7 54.Ng3 Nd5 55.Ke4 Nf6 56.Kf3 Kd5 57.Nf5 Kc4 58.Ke3 Nd5 59.Ke4 Nf4 60.h4 Ne2 61.h5 Nc3 62.Ke5 Nb5 63.d5 Kc5 64.d6 Kc6 65.Ke6 Nc3 66.Nh6 Ne4 67.Nf7 1–0. Giffard – Kleinplatz, Cannes 1996.

8.Nc3 h6 9.0-0 Nh7 10.d4 ed4 11.ed4 a5 12.a3 b6 13.Re1 Bb7 14.Qd2 Re8 15.Rad1 Nhf6 16.d5 Ng4 17.h3 Ngf6 18.Nd4 ab4 19.ab4 Ne4 20.Ne4 Re4 21.Bf1 Re1 22.Qe1 b5 23.Bc3 Ra3?? 24.Nc6 Bc6+= 25.Bg7 Kg7 26.dc6 Ne5?? 27.Qe5!!+– (27...Qf6 28.Qf6 Kf6 29.Rd6 cd6 30.c7 bc4 31.c8Q+–) 1–0. Kleiser,Gregor (2150) – Heilinger,Dietmar (2180), AUT–chT2W, 1999.

8.Nbd2 a5 9.ba5 Re8 10.0-0=.

8.Nbd2 b6 9.Nb3 (9.0-0 a5 10.b5 Bb7) 9...Bb7 (9...a6 10.0-0=) 10.0-0 c5 11.b5 Re8 12.a4 (12.e4 a6=) 12...d5 (12...a6 13.e4=) 13.Nfd2 (13.a5 a6 14.ba6 Ra6 15.cd5 ba5=) 13...a5 (13...a6 14.Bf3=) 14.cd5 Nd5 15.Nc4 (15.Ne4 f5 16.Nd6 Qc7 17.Ne8 Re8+–) 15...Qe7 (15...Qg5 16.e4 Nf4 17.Bg4=+) 16.Nbd2 f5 17.Bf3 Rab8 18.Qb3 (18.Rc1 Rbd8=) 18...Qe6 19.e4 (19.Rac1 Red8=) 19...Nf4 20.ef5 gf5 21.Bb7 Rb7 22.Nd6 Qb3 23.Nb3 Nd3 24.Ne8 Nb2 25.Nd6 Rc7 26.Nf5 Nf6 27.Ra2 Nd3 28.Nc1 e4 29.Rc2 Nd5 30.Rc4 Nc3?? 31.Ng7+– Nc1 32.Nf5 N1e2 33.Kh1 Rd7 34.g3 Kf7 35.f3+– ef3 36.Rf3 Ke6 37.Rh4 Rf7 38.Rh6 Ke5 39.Rh5 Rd7 40.Re3 Kf6 41.Nh4 Kg7 42.Rg5 Kf7 43.Rf5 Kg7 44.Kg2 Rd2 45.Rf2 Ra2 46.Re7 Kg8 47.Re8 Kg7 48.Nf5 (48...Kg6 49.Re6 Kf7 50.Rb6+–) 1–0. Luzuriaga,Norberto Horacio – Suc,Timothy, corr or01–003 E–mail, 2001.

8.Nbd2 c5 9.a3 Re8 10.Ng5 (10.0-0 Qc7=) 10...b6 (10...Qb6 11.Bc3=) 11.h4 (11.Bf3 Rb8+=) 11...b5 (11...Bb7!?=) 12.Nge4 bc4 (12...d5 13.Nd6 Re6 14.Nb5+=) 13.Nd6+– (worse 13.Nc4 d5 14.Nf6 Qf6=+) 13...cd3 14.Ne8 (14.Nc8?? de2 (14...Rc8?! 15.Bd3 Qe7 16.Be2=+; 14...Qc8?! 15.Bd3 Qb7 16.Be2=+) 15.Qe2 Rc8–+) 14...de2 15.Nf6 Bf6 16.Qe2 h5 (16...Bh4 17.Nc4 cb4 18.ab4+– (18.Be5?! Ne5 19.Ne5 Bf6=)) 17.g3 (17.g4 cb4 18.ab4 e4 19.Ne4 Bb2 20.Qb2 Bb7+–) 17...e4 (17...cb4!? 18.ab4 Qb6+–) 18.Ne4 Bb2 19.Qb2 Bb7 20.f3 Rb8 (20...Be4 21.fe4 cb4 22.ab4+– (22.Qb4 Qf6 23.0-0-0 Rc8 24.Kb1 Rb8 25.Rd7 Rb4 26.ab4 Qe6-/+)) 21.Rd1 (21.Nd2 cb4 22.ab4 a5+–) 21...Qe8 (21...Be4 22.fe4 Qc7 23.Kf2+–) 22.Qc2 (22.Rd7 Be4 23.Qd2+– (worse 23.fe4 Qd7 24.0-0 cb4=+)) 22...f5?? (22...cb4!? 23.ab4 Be4 24.fe4 Rb4+–) 23.Qc4 (better 23.Rd7 Be4 24.Qc4 Bd5 25.Qd5 Kh8+–) 23...Kh8?? (23...Kf8 24.Qc3 fe4 25.Rd7 Qd7 26.Qh8 Kf7 27.Qb8 ef3+–) 24.Qc3 Qe5 (24...Ne5 25.Nd6 Qe7 26.Qe5 Qe5 27.Nf7 Kg8 28.Ne5+–) 25.Rd7 Qc3 26.Nc3 cb4 27.ab4 Bf3 28.0-0 Bg4 (28...Rc8 29.Rf3 Rc3 30.Ra7+–) 29.Ra7 (29.Nd5 Rf8 30.Ra7 Kg8 31.Ne7 Kg7 32.Nf5 Kh8+–) 29...Rb4 (29...Kg8 30.Nd5 Kf8+–) 30.Rb1 (30.Rb1 Rb1 31.Nb1+–) 1–0. Cerami,Giuseppe (1680) – Meo,Antonino, Sicilia Regional–ch, 2009.

8.Nbd2 c6 9.0-0 Re8 (--> 8.Nbd2 Re8 9.0-0 c6).

8.Nbd2 Ne8 9.0-0 f5 10.a3 Nef6 11.Rc1 Ng4 12.h3 Nh6 13.e4 f4 14.d4 g5 15.de5 de5 16.Qb3 Kh8 17.c5 Rg8 18.Rcd1 Qe7 19.Nc4 Nf7 20.Rd2 h5 21.Rfd1 g4 22.hg4 hg4 23.Nh2 Nf8? 24.Bg4+– Qh4 25.Qh3 Qh3 26.Bh3 Bh3 27.gh3 Ng5 28.Kg2 Ne4 29.Rd3 Bf6? 30.Ng4+– Ne6 31.Be5 Be5 32.Nce5 N6g5? 33.f3 Nf6 1–0. Fournier,Frederic (1700) – SilaWody, Active, 2007.

8.Nbd2 Ng4 9.h3 Nh6 10.Qc2 f5 11.Nb3 Nf6 (11...Nf7 12.0-0=) 12.a3 Nf7 13.d4 Qe7 14.Nfd2 (14.Rd1 e4 15.Nfd2 f4=) 14...b6 15.de5 Ne5 16.Nd4 Bb7 17.0-0 c5 18.N4f3 Ne4 19.Ne5 de5 20.Ne4 Be4 21.Bd3 Bd3 (worse 21...cb4 22.Be4 fe4 23.ab4+=) 22.Qd3 Rad8 23.Qb3 e4 24.Bg7 Qg7 25.Rad1 Qe7 26.b5 Rf6 27.Rd8 Qd8 28.Rd1 Rd6 29.Rd6 Qd6 30.Qc2 ½–½. Harutyunyan,Ruben (2295) – Gely,Yann (2110), Angers FRA (3), 2018. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 0-0 6.Be2 e5 7.d3 Nbd7)

8.e4 Re8 9.0-0 Nf8 10.Nc3 c6 11.h3 Ne6 12.Bc1 d5 13.Qc2 (worse 13.Ne5 de4 14.de4 Nd7-/+) 13...Qc7 14.g3? (better 14.cd5 cd5 15.Qb2=) 14...Nd4–+ 15.Nd4 ed4 16.Na4 dc4 17.Qc4 (better 17.Bf4 Qe7 18.Kg2–+) 17...b5 18.Qc2 ba4 19.Kg2 (19.Bf4 Qb7–+) 19...Qd7 20.g4 Bb7 (20...Ne4 21.de4 d3 22.Bd3 Ba1 23.Rd1–+) 21.Bf4 (21.Rb1–+) 21...c5! 22.bc5 (22.Qc5 Decoy to c5 22...Ne4) 22...Ne4! 23.f3 (23.de4 Be4 Theme: Double Attack) 23...Nc3 24.Bd1 Qd5 25.Bd6 Re3 26.Bf4 Re6 (worse 26...Qc5 27.Be3 de3 28.Re1–+; worse 26...Nd1 27.Qd1 Rae8 28.Qa4–+) 27.Bd6 Rae8 28.Rf2 (28.Kg1 Be5 29.Be5 Qe5–+) 28...Re1 29.h4 (29.Qd2 Nd1 30.Rd1–+) 29...Nd1 30.Rd1 R8e2! 31.Re2 Deflection from f3 (31.Qe2 Re2) 0–1. petrobbo (2005) – sinjoor1 (2135), ChessWorld.net, 2017.

8.h3 Nh5 9.0-0 b6 10.Nh2 Qg5 11.Nf3 Qd8 12.Nh2 Qg5 13.Nf3 Qf5?? (13...Qd8 14.d4+=) 14.e4?? (better is 14.g4!? Qe6 15.gh5 Qh3 16.Nh2+–) 14...Qf4 15.Bc1 Qf6 16.Nh2 Nf4 17.Bf4? ef4-/+ 18.Nc3?? Qc3–+ 19.a3 Qf6 20.Nf3 Ne5 21.Nd4 Qg5 22.g4 h5 23.f3 hg4 24.fg4 Ng4 25.Bg4 Bd4 26.Kh2 Be5 27.d4 Bg4 28.Qg4 Qg4 29.hg4 Bd4 30.Rad1 Be5 31.Kg2 Kg7 32.Kh3 Rh8 33.Kg2 Rh6 34.Rh1 Rah8 35.Rh6 Rh6 36.Rh1 Rh1 37.Kh1 Bb2 38.a4 Bc3 39.b5 f3 40.Kg1 Bd4 41.Kf1 f2 42.Ke2 f5! 43.gf5 g5 44.Kf1 g4 45.Kg2 g3! 46.Kf1 Kf6 47.Kg2 Kg5 48.Kf1 Kf4 49.Kg2 Ke4 (49...Ke4 50.a5 Ke3 51.a6 Ke2 52.Kh3 f1Q 53.Kh4 Bf6 54.Kg4 Qf3 55.Kh3 Kf2 56.c5 Qf5#) 0–1. pallinaama – bombelek12, kurnik, 2012.

8.0-0 a5

9.a3 b6 10.Qc2 Bb7 11.Nc3 Qe7 12.Rfd1 Rfe8 13.e4 c6 14.b5 c5 15.Nd5 Nd5 16.cd5 Bh6 17.Bc1 Bc1 18.Rac1 f5 19.Nd2 Rf8 20.Nc4 Rf6 21.Rf1 Raf8 22.Qd2 R8f7 23.Qh6 Qd8 24.Ne3 Kh8 0–1. David,Giampiero (2190) – Weeks,Mark A (2390), WCCC29SF14(WS), 2005.

9.b5 Nb6 10.Nbd2 Re8 11.a4 Bg4 12.h3 Be6 13.Ng5 Bf5 14.e4 Bd7 15.Nb3 Nh5 16.Nf3 Nf4 17.Bc3+= Ra7 18.Ba5 Na4 19.Ra4 b6 20.Qd2 ba5 21.Rfa1 c6 22.bc6 Bc6 23.Ra5 Ra5 24.Na5 Bd7 25.Bd1 Bh6 26.Qb4 Bf8 27.Qc3 Qb6 28.Nb3 Bh3 29.c5! dc5 30.gh3 Nh3 31.Kg2 Nf4 32.Kf1 g5 33.Be2 Qh6 34.Ke1 g4 35.Ne5 Bg7 36.Nc5 Be5 37.d4 Bd6 38.Ra7 Qh1 39.Kd2 Ne2 40.Qc4 Qh5 41.Nd7?? Qh6 (41...Qh6 42.Ke2 Re4 43.Kd3 Qh3 44.Kc2 Qf3–+) 0–1. Malmstroem,Jan – Dopper,Johan, TKM/SF/02, 2001.

9.b5 Nc5 10.d4 ed4 11.ed4 (11.Qd4 Na4 12.Bc3 Bf5=+) 11...Nce4 12.Bd3 b6 (12...Re8 13.Re1=) 13.Re1+= Bb7 14.Nc3 Re8 15.Qc2 (15.d5!? Nc5 16.Re8 Qe8 17.Qd2+=) 15...Nc3= 16.Qc3 Bf3 17.gf3 Qd7 18.Qd2 (18.Re3 d5=) 18...Nh5 (better 18...d5!?=+) 19.Be4+= Rad8 20.Bc6 Re1 21.Re1 Qh3 (21...Qf5 22.Bc1+=) 22.Re7 Bf6 23.Rc7 g5 24.Qe1 (24.Qd3 Nf4 25.Qf1 d5 26.Bd5 Qf1 27.Kf1 Nd5=) 24...Nf4 25.Qf1 Qh4 (25...d5!? 26.Bd5 Qf1 27.Kf1 Nd5=) 26.Rb7+= g4 (26...Nh3!? 27.Kg2 Nf4 28.Kh1 d5 29.cd5 Nd5 30.Bd5 Rd5+=) 27.fg4 Nh3 28.Kg2 (28.Kh1 Nf2 29.Kg2 Ng4+–) 28...Qg4+– 29.Kh1 Bh4? (better 29...Qd1 30.Qd1 Nf2 31.Kg2 Nd1+–) 30.f3+– Qf5 31.Qg2 (31.Be4!? Qc8 32.Qg2 Kf8+–) 31...Kf8 32.Be4 Qf4?? (32...Qe6 33.d5 Nf2 34.Qf2 Qe4+– (34...Bf2?? 35.de6 fe6 36.Bg7 Kg8 37.Bf6+–)) 33.Qh3 (33.Qh3 Re8 34.Qg2+–) 1–0. GuestNZWM – Xekmat, freechess.org, 2017.

8.0-0 b6

9.Nc3 Bb7 10.Nd2 c5 11.a3 Qe7 12.Bf3 Rab8 13.Bb7 Rb7 14.Qf3 Rfb8 15.b5 Nf8 16.Nde4 Ne6 17.a4 Ne4 18.de4 a5 19.ba6 Ra7 20.Qd1 Ra6 21.Qd3 Raa8 22.Rfd1 Rd8 23.Ra3 Nc7 24.Rb3 Rab8 (24...Ra6!?+=) 25.Ba3 Bf8 26.Rdb1 Na8 27.Bb2 Kg7 28.Ba1 Qa7 29.f4 f6 30.Nb5 Qa6 31.Rd1 Be7 32.Bb2 Qb7 33.Qc2 Nc7 34.Nc3 Qa7 35.Qe2 Qa6 36.Ra3 Ra8 37.Rf1 White prepares the advance f5 37...Rf8 38.Raa1 Rad8 39.Rf3 Qc8 40.Raf1 Qe6 41.f5 Qf7 42.Rh3 Rh8 43.Ba3 g5 44.Rb1 Rb8 45.Rh5 h6 46.g4 Kh7 47.h4 Ne8 48.Nd5 Bd8 49.Qh2 Qf8 50.Kf2 Ng7? (better 50...Ra8!? 51.hg5 fg5+/-) 51.hg5+- Nh5 52.Qh5 Qg7 (52...Rg8 53.g6 Kh8 54.Rh1+-) 53.gh6 Qg8 54.a5 Rb7? (better 54...Qe8+-) 55.Rb6 (55.ab6?! Qg5 56.Qg5 fg5+-) 55...Rb6 56.ab6 (56.Nb6 Qg5 57.Nd5 Qh5 58.gh5 Kh6=+) 56...Qg5 57.Qg5 fg5 58.Bc1 Kh6 59.Bd2 Rh7 60.Ba5 Rb7 61.Ke2 Rb8 62.Kd3 Kg7 63.Kc3 Kf7 64.Kb3 Ke8 65.Ka4 Kd7 66.Kb5 Rb7 (66...Ra8 67.f6 Rb8 68.Ne7 Be7 69.fe7 Ke7 70.Kc6 Rc8 71.Kb7+-) 67.f6 Ke6 (67...Rb8 68.Ne7! Be7 69.fe7 Ke7 70.Kc6 Rc8 71.Kb7+-) 68.Ka6 Bb6 69.Kb7 Ba5 70.Kc8 Bd2 71.Kd8 Kf7 72.Kd7 Bc3 (72...Bc1+-) 73.Nc3 Kf6 74.Kd6 (74.Kd6 Kg6 75.Kc5 Kh7 76.Kc6 Kg6 77.Kd6 Kh6 78.c5 Kg7 79.c6 Kg8 80.c7 Kh8 81.c8Q Kg7 82.Nd5 Kg6 83.Ne7 Kg7 84.Qg8 Kf6 85.Nd5) 1-0. Hasangatin,R (2490) - Kurinov,Mikhail (1765), 40th Nezhmetdinov Mem, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7)

9.Nbd2 Bb7 10.a4 a6 11.Qc2 Re8 12.Rfc1 (12.e4 c5 13.Qc3 Nh5=) 12...Rb8 13.Rab1 c5 14.Bc3 d5 (14...cb4 15.Rb4 Qc7 16.e4=) 15.bc5+= d4 16.c6 (< 16.ed4 ed4 17.Nd4 bc5-/+) 16...dc3 17.cd7 Nd7 18.Ne4 Be4 19.de4 Nc5 20.Rd1 Qc7 21.Rd5 Qc6 22.Ra1 a5 23.h4 Na6 24.Qc3 Nb4 25.Qb3 Nd5=+ 26.cd5 Qc5 27.Ba6 Bf8 28.Bb5 Re7 29.h5 Qd6 30.hg6 hg6 31.Qc3 Rd8 32.Rd1 f6 33.g3 Kg7 34.Kg2 Rc7=+ 35.Qd3 Be7 36.Nh4 Qb4 37.Rb1 Qc5 38.Qe2 f5 39.Ng6 Kg6-/+ 40.Rh1 Bf6 41.Qh5 Kg7 42.Qf5 Rf7 43.Be2 Qc8 44.Rh7= Kg8 45.Qg6 Rg7 46.Rg7 Bg7 47.Bg4 Rd6?? 48.Qd6 Qg4 49.f3 Qc8 50.Qc6 Qa6 51.Kh3 Qe2 52.Qe8 Kh7 53.Qh5 Kg8 54.d6 Qf1?? 55.Kg4 Qc4 56.Qe8 Kh7 57.d7 Bf6 58.Kf5 (58.Kf5 Bd8 59.Qd8 Qf7 60.Ke5 Qh5 61.Ke6 Qh6 62.Qf6 Qe3 63.Qf7 Kh6 64.Qf4 Kg6 65.Qe3 Kh7 66.d8Q b5 67.Qeg5 ba4 68.Qdg8) 1–0. Anastasian (2490) – Smirin (2555), Moscow, 1992.

9.Nbd2 Bb7 10.Qc2 c5 11.a3=.

9.Nbd2 Bb7 10.Qc2 Ne8 1.d4 f5 12.d5 (12.Rfd1 c5) 12...Kh8 (12...c6 13.dc6 Bc6 14.Rfd1) 13.e4 (13.a4 a5) 13...f4 (13...c6 14.dc6 Bc6 15.Rad1) 14.Nb3 (14.Bc3 g5+/-) 14...Rg8 (14...a5 15.a3+/-) 15.c5 Nf8 (15...dc5 16.bc5 c6 17.Rfd1+/-) 16.c6 (16.Rfc1 Nf6+/-) 16...Bc8 17.h3 g5 18.Nh2 Nf6 19.Ng4 (19.a4 Qe7+/-) 19...Qe8 (19...Ng4 20.Bg4 Bg4 21.hg4) 20.Nf6 Bf6 21.Qd1 Qg6 22.f3 h5 23.Kh2 g4= 24.fg4 hg4 25.hg4 Qe4=+ 26.a3 Qh7 27.Kg1 Qh4 28.Nd2= Bg4 29.Bg4 Qg4=+ 30.Qg4 Rg4 31.Ne4 Bh4 32.Rf3 Kg7 33.Bc3 Nh7-/+ 34.Be1 Be1 35.Re1 Nf6 36.Nf6 Kf6 37.Kf2 Rag8-+ 38.Rg1 Rg3 39.a4 Rf3 40.Kf3 Rg3 41.Kf2 Kg7 42.Ra1 a6 43.b5 a5 44.Rc1 Rd3 45.Rg1 Rd5 46.g3 Kf6 47.gf4 ef4 48.Rh1 Kg6 49.Kf3 Rf5 50.Rh8 Rf7 51.Rg8 Kf5 52.Re8 Kg6?? 53.Rg8 Kf5?? 54.Re8 Rh7 55.Rf8 Ke5 56.Re8 Kf5?? 57.Rd8?? Rh3-+ 58.Kg2 Rg3 59.Kf2 Ra3 60.Rd7 Ra4 61.Rc7 Rb4 62.Rf7 Ke6 63.c7? Rc4-+ 64.Rh7 a4 ½-½. Ostroverkhova,Elena - Shepeleva,Sofia, UKR-ch U12 Girls, 2001.

9.Nbd2 Re8 10.Qa4=.

8.0-0 c6

9.Nc3 a6 10.a4 d5 (10...a5 11.b5=) 11.cd5+= Nd5 12.Nd5 cd5 13.Qb3 e4 14.de4 de4 15.Nd2 Qe7 16.Bg7 Kg7 17.Rac1 Nf6 18.Qb2 h5 19.Rc5 Bf5 (19...a5!?+=) 20.Re5+/- Qd7 21.Ne4 Be4 (21...Ne4 22.Re7 Nf6 23.Rd7 Bd7 24.h3+-) 22.Re4 Qa4 23.Rf4 Qc6 24.Bf3 Qb6 25.h3 g5 (25...a5!?+/-) 26.Rf5+- Kg6? (better 26...g4 27.Bb7 Ra7+-) 27.Qe5 Nh7 (27...Rae8 28.Rg5 Kh7 29.Qf5 Kh8+-) 28.Bh5 Kh5 (28...Kh6 29.Bf7 Rae8 30.Be8 Rf5 31.Qf5 Qf6+-) 29.Qg7 Qg6 (29...Rh8 30.g4 Kh4 31.Qe5 Qe3 32.Qe3 Nf6 33.Qg3) 30.g4 Kh4 31.Qe5 (31.Qe5 Qd6 32.Qd6 Kh3 33.Qg3) 1-0. Spata,G (2320) - Gonzalez,Pablo (1800), Norberto La Porta Cup, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7)

9.Nbd2 Qe7 10.Qb3 b6 11.d4 e4 12.Ng5 h6 13.Nh3 Re8 14.a4 a5 15.b5 c5 16.Nf4 cd4 17.ed4 g5 18.Nh5 Nh5 19.Bh5 Nf6 20.Be2 Bf5 21.Rae1 Rac8 22.Ba3 e3 23.fe3 Qe3 24.Qe3 Re3 25.Bd6 (worse is 25.Rf5 Ra3 26.c5 Ra2+= (worse is 26...dc5 27.Nc4 Rc3 28.dc5=; worse is 26...bc5 27.Nc4 Ra4 28.Nb6+/–)) 25...Bg4 26.Kf2 Re6 27.c5 Be2 28.Re2 Ng4 29.Kf3 Rd6 30.cd6 (30.Kg4? Rd4 31.Kf3 Rc5 32.Re8 Kh7–+) 30...Nh2 31.Ke4 Nf1 32.Nf1 Re8 33.Kd3 Rd8 34.Ne3 Rd6 35.Nf5 Rf6 36.Re5 Bf8 37.g4 Bb4 38.Ke4 Kf8 39.Kd5 h5 40.gh5 g4 41.Ke4 Bd2 42.Kd3 Bf4 43.Rd5 Kg8 44.Ke4 Bh2 45.Nh4 Kg7 46.Nf5 ½–½. Thau,Oliver (1700) – Kuni,Richard (1700), T16–01 corr TSC, 2002. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7)

8.0-0 Qe7

9.a3 a5=.

9.Nc3 c6 10.b5 Ne8 (10...cb5 11.Nb5 a6 12.Nc7=) 11.a4+= a5 12.Nd2 f5 13.Bf3 Nc5 14.Nb3 Nd3 15.Bd5 cd5 16.Nd5 Qf7 17.Qd3 Be6 18.Rfd1 Nf6 19.Rac1 Rfd8 20.Bc3 Bd5 21.cd5 b6 22.f3 Rac8 23.Bb2 Rc1= 24.Bc1 Rc8 25.Ba3 e4=+ 26.Qd2 ef3 27.gf3 Bh6 28.Bb2 Qe7 29.Bf6 Qf6 30.f4 g5 31.Nd4 gf4 32.ef4 Kh8 33.Re1 Qg6 34.Kh1 Qg4 35.Ne6 Qf3= 36.Kg1 Rg8 37.Ng5 Bg5 38.fg5 Qg4 39.Kf2 Qh4 (39...Qh4 40.Kf1 Qg5 (40...Rg5?? 41.Qc3 Kg8 42.Qc8 Kf7 43.Qe8 Kg7 44.Re7 Kh6 45.Qf8 Kh5 46.Rh7 Kg4 47.Rh4 Kh4 48.Qh6 Kg4 49.h3 Kf3 50.Qg5+–) 41.Qg5 Rg5=+). Timurova,L (2180) – Zozulia,A (2370), V ECC Women, Halle GER, 2000.

9.Nc3 c6 10.Qc2 Re8 11.Rfd1 Nf8 12.a4 (12.a3 Bf5+=) 12...Bg4 (12...Ne6 13.a5+=) 13.h3 Bd7 14.a5 h5 (14...Rac8 15.Ne4+=) 15.d4 (15.Ne4 Bf5+/–) 15...e4 (15...ed4 16.Nd4 c5 17.bc5 dc5 18.Ndb5+/–) 16.Nh2 (16.Nd2 d5+=) 16...a6 (16...d5 17.Ba3+=) 17.d5 cd5 (17...Rab8 18.Nf1+=) 18.Nd5 Nd5 19.Rd5 (19.cd5?! Qg5 20.Kh1 Rac8=) 19...Bb2 20.Qb2 Bc6 (20...Be6 21.Rd4 Qg5 22.Kh1+/– (< 22.Re4 Bh3 23.Bf3 Bg2 24.Bg2 Re4-/+)) 21.Rd2 Red8 22.b5 Be8 23.Qd4 f5 24.Qb6 Bf7 25.Nf1 Rd7 26.Rad1+/– ab5 27.cb5 d5 28.a6 ba6 29.ba6 Rd6 30.Qa5 Qd8 31.Qa3 Ne6+= 32.Rb2 d4 33.Bc4 d3 34.Rb7 Rd7 35.Qb3+= Qe7 36.Rc1 Kh7 37.Qb6 Rb7 38.ab7 Rb8 39.Ba6 d2?? 40.Nd2+– Qd7 41.Rc8 (41.Rc8 Qc8 42.bc8Q (42.bc8B? Rb6 43.Nc4 Rb1 44.Kh2 Kg7–+; 42.bc8N?! Rb6 43.Nb6 Nc5+–; < 42.bc8R Rb6 43.Bf1 h4=+) 42...Rb6 43.Bc4+–) 1–0. Tu Hoang Thong (2510) – Elsness,F (2380), 34th Olympiad, Istanbul TUR, 2000.

9.Nc3 Ne8 ½–½. Berkley,Stephen (1615) – Szokol,Imre (1680), IECC, 2002.

9.Nbd2 h6 10.d4 e4 11.Ne1 d5 12.Qb3 a5 13.cd5 Qb4 14.Qc2 Re8 15.a3 Qd6 16.Rc1 Nb6 17.Qc7 Qc7 18.Rc7 Nbd5 19.Rc1 Bg4 20.Bg4 Ng4 21.Rc5 Ngf6 22.Rb5 b6 23.Nc4 Re6 24.f3 Rc8 25.fe4 Rc4 26.ed5 Re3 27.Rb6 Nd5 28.Rb5 Nc3 29.Rb8 Kh7 30.Nf3 Re7 31.Kh1 Na4 32.Ba1 Rc2 33.d5 Ba1 34.Ra1 Rd7 35.Rf1 Re2 36.d6 Nc3 37.Rb6 Kg7 38.Kg1 Re6 39.Rc6 Ne4 40.Ra6 Red6 41.Ra5 f5 42.Rb5 Kf6 43.Re1 Ra7 44.Rb3 Rc7 45.h3 Rc2 46.Reb1 g5 47.Kh2 g4 48.hg4 fg4 49.Ne1 Re2 50.Rc1 Nd2 51.Rb8 Nf1 52.Kg1 Ne3 53.Rf8 Kg7 54.Rf2 Rdd2 55.Re2 Re2 56.Kh2 Kf6 57.a4 h5 58.a5 h4 59.Kh1 g3 60.a6 Ra2 61.Rc6 Kf5 62.Rc1 Ra6 63.Nf3 Ra2 64.Nh4 Kg4 65.Nf3 Ng2 66.Ne5?? Kh3 67.Ng6?? Ra6 68.Rg1 Rf6 69.Ne7 Nh4 70.Nf5 0–1. Fritz 6 – Fritz 8, 2004.

8.0-0 Ne8

9.a4 e4 10.Bg7 ef3 11.Bf8 fe2 12.Qe2 Nf8 13.Nc3 Qh4 14.d4 h6 15.a5 Nh7 16.b5 Nhf6 17.Qd1 Ne4 18.Ne4 Qe4 19.Re1 a6 20.f3 Qh4 21.b6 cb6 22.ab6 Qg5 23.e4 Be6 24.d5 Bh3 25.Qc2 Bd7 26.Qc3 Rc8 27.Qd4 Ng7 28.Ra2 Nh5 29.Rea1 Nf4 30.Kh1 Nh5 31.Kg1 f6 32.g3 Qe5 33.Qd3 Bh3 34.Qe3 Kh7 35.Qd3 Kg8 36.f4 Qe8 37.Ra4 f5 38.ef5 Bf5 39.Qd4 Qe2 40.Qf2 Qd3 41.Qa2 Re8 42.Qf2?? Re2 (43.Ra6 Rf2 44.Ra8 Kf7 45.Kf2 Qd2 46.Kf3 Nf6 47.Rf8 Kf8 48.Ra8 Ke7 49.Re8 Ke8 50.g4 Be4 51.Kg3 Qg2 52.Kh4 Qg4) 0–1. Bonetti,Shane – duckbreath (2485), ICC, 2002.

9.Qb3 f5 10.c5 Kh8 11.cd6 cd6 12.Nc3 Ndf6 13.Rac1 Qe7 14.b5 Bh6 15.Qa3 g5 16.b6 a6 17.Nb5 Qd8 18.Nc7 Nc7 19.bc7 (19.Rc7?! Nd5 20.Qa5 Nc7 21.Ne5 A) 21...de5? 22.Qe5 Qf6 23.Qf6 Rf6 24.Bf6 Bg7 25.Bg7 (25.bc7?! Bf6 26.Rc1 Kg7=) 25...Kg7 26.bc7+–; B) 21...Bg7 22.bc7 Qe7=) 19...Qd7 20.d4 e4 21.Ne5! Qe6 (21...de5 22.de5 Passed pawn) 22.d5!+– Qe7 (22...Qd5 23.Bc4 Decoy; 22...Nd5 23.Ng6 Double attack (23.Nd7 Decoy)) 23.Nc4 Qc7 24.Bd4 (better is 24.Bf6 Rf6 25.Qb2+–) 24...Qe7 (24...Qd8!?+/–) 25.Be5! (worse is 25.Nd6 f4+–) 1–0. Espig,Lutz – Jakat,Thomas, Plauen_29th_DDR_Chpp, 1980. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.0-0 Ne8)

9.Qb3 Kh8 10.Nbd2 Qe7 11.Rac1 b6 12.c5 (better is 12.d4!?+=) 12...bc5+= 13.bc5 Nc5 14.Qa3 Nd7 15.Nc4 c5 16.Nfd2 Qe6 17.d4 ed4 18.Bf3 d5 19.ed4 Rb8 20.Rfe1 Qa6 (20...Qf5 21.Ne3 Qg5 22.Bd5 Bd4 23.Bd4 cd4 24.Nf3+=) 21.Bd5 Nc7 22.Qa6 Na6 23.Ba3 Nf6 (better is 23...Bd4!? 24.Nb3 Bf6+=) 24.Bc6 Nb4 25.Bb4 cb4 26.d5 Bh6 27.Re7 a5 (27...Rd8 28.Ne3 Kg7 29.Ndf1+=) 28.Ne3 (28.Rd1!?+/–) 28...a4+= 29.Ra7 b3 30.ab3 ab3 31.Rb1 Ng4 32.Nec4 Bg7 (32...b2 33.Ra2 Bg7 34.h3= (worse is 34.Nb2 Bf5 35.Rd1 Rb2 36.Rb2 Bb2–+)) 33.Rb3+/– Bd4 34.Rb8 Bf2 35.Kh1 Ba7 36.Ra8 Bd4 37.d6 Nf2= 38.Kg1 Ng4 39.Kf1 Nh2 40.Ke1 Kg7 41.d7 Bd7+= 42.Rf8 Bc6 43.Rd8 Bg1 44.g3 Ng4 45.Ke2 Bf2 46.Rd6 Bg2 47.Rd3 h5 48.Rb3 f6 49.Nd6 f5 50.N6c4 Kf6 51.Ra3 Bd5 52.Rd3 Be6 53.Ra3 g5 54.Kf3 Bd4 55.Ra6 Ne5 56.Ne5 Ke5 57.Kg2 g4 58.Ra5? Bd5–+ 59.Kh2 Bc3 (59...Bc3 60.Nc4 Kd4–+) 0–1. Csom,Istvan – Vaganian,Rafael, Erevan, 1976. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.0-0 Ne8)

9.Qc2 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 e4 13.Nd4 ed3 14.Bd3 Ne5 15.Be2 Bd7 16.Nd2 Qe7 17.N2f3 Nf6 18.b5 Bc8 ½–½. Karlicky,P – Modr,Bretislav, Prague Bohemians, 1977.

9.Qc2 f5 10.Nbd2 g5 11.Nb3 g4 12.Nfd2 Qh4 13.c5 f4 14.ef4 ef4 (14...Rf4?? 15.g3 Qh5 16.gf4 ef4 17.Bg7 Kg7 18.Rfe1+–) 15.Bg7 Ng7 16.cd6 cd6 17.Rfe1 Ne5 18.d4 g3 19.fg3 fg3 20.hg3 Qg3 21.de5 Qf2 22.Kh1 ½–½. Truskavetsky,Alexandr (2360) – Grinev,Valeriy (2115), UKR–ch U20 sf, 2004. (=1.c4 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.Nf3 Nbd7 6.Be2 e5 7.d3 0-0 8.0-0 Ne8)

8.Qc2 Re8

9.0-0 a5 10.a3 c6 11.Nbd2 d5 12.c5 e4 13.Ne1 ab4 14.ab4 Ra1 15.Ba1 b6 16.Bf6 Nf6 17.de4 Ne4 18.Nef3 Bf5 19.Ne4 Be4 20.Qc1 bc5 21.Qc5 Qc7 22.Rc1 Re6 23.Ng5 Rd6 24.Ne4 de4 25.Qc2 Qe7 26.b5 cb5 27.Bb5 Rb6 28.Bc6 Rb4 29.g3 h6 30.Bd5 ½–½. Brzoza – Zuk, corr Poland 1981–82.

9.Nbd2 b6 10.0-0 Bb7 11.Rad1 a5 12.a3 Qe7 13.e4 Nf8 14.b5 Ne6 15.a4 Nh5 16.Rfe1 Qf8 17.Nf1 Nhf4 18.Ng3 f5 19.Bf1 fe4 20.Ne4 Qf5 21.Nfd2 Rf8 22.f3 g5 23.Ng3 Qg6 24.Nde4 Rf7 25.Rd2 Raf8 26.Rf2 h5 27.Re3 Nd4 28.Bd4 ed4 29.Re1 d5 30.cd5 Nd5 31.Ne2 Ne3 32.Qc1 g4 33.Nd4 Nf1 34.Qc4 Be4 35.Re4 Bd4 36.Rd4 Nh2 37.fg4 Ng4 38.Rf7 Qf7 39.Rg4 hg4 40.Qg4 Qg7 41.Qe6 Rf7 42.Qc8 Kh7 43.Qd8 Qa1 44.Kh2 Qe5 45.Kg1 Re7 0–1. Roczniak – Gromek, Poland 1969.

8.Nc3 a5

9.a3 ab4 10.ab4 Ra1 11.Qa1 c6 (11...Nb6 12.0-0=) 12.0-0+= Re8. pcmvr (2225) – oliveira (2370), net–chess.com, 2006.

9.ba5 Re8 10.0-0=.

8.Nc3 c6

9.0-0 Qe7 10.a4 Rd8 11.a5 Nf8 (11...d5 12.c5=) 12.a6 (12.d4 ed4 13.Qd4 Bf5+=) 12...d5 (12...ba6 13.Qa4 Rb8 A) 14.Qc6? Rb4 15.Ba3 Bb7 16.Ne5 A1) 16...Bc6?! 17.Nc6 Qd7 18.Nb4= (18.Nd8? Rb3–+); A2) 16...Qe5?! 17.Qc7 Rd7 18.Qd7 N6d7 19.Bb4–+; A3) 16...de5?! 17.Bb4 Qb4 18.Qc7-/+; A4) 16...Rb3–+; B) 14.Rfb1=) 13.ab7+= Bb7 14.Qb3 (14.c5 d4 15.ed4 ed4+=) 14...e4 (14...N8d7 15.d4+=) 15.de4 Ne4 (15...de4 16.Nd4+=) 16.Ne4 (16.cd5 Bc3 17.Bc3 c5+=) 16...Qe4 (16...de4 17.Bg7 Kg7 18.Nd4+/–) 17.Bg7 Kg7 18.Qc3 Kg8 19.Ra5 Rd7 20.Ne5+– Re7 21.Ng4 d4 22.Qa1 Nd7 23.Rd1 de3 24.Nh6 (24.Nh6 Kf8 25.Qh8) 1–0. pcmvr (2760) – fhupp (2310), net–chess.com, 2006.

9.0-0 Ne8 10.Qb3 a5 11.a3 Nc7 12.d4 Qe7 13.b5 Ne6 14.Rad1 g5 15.g3 f5 16.c5 d5 17.Qa4 Nd8 18.Ne5 Ne5 19.de5 Be5 20.Qb3 Nf7 21.Na4 Be6 22.Bd4 f4 23.Qc3 Bh3 24.Rfe1 fg3 25.hg3 g4 26.e4 de4 27.Bc4 cb5 28.Bb5 Bd4 29.Rd4 Ne5 30.Rde4 Qf6 31.Rf4 Nf3 32.Rf3 gf3 33.Bc4 Kh8 34.Re7 Qc3 35.Nc3 Rfe8 36.Rb7 Re1 37.Kh2 Bg2 38.g4 Rh1 39.Kg3 Rf8 40.Bf7 Rh3 41.Kf4 Rh6 42.Ke5 Bh3 43.g5 Rc6 44.Ne4 Rd8 45.Re7 Rdc8 46.Bd5 R6c7 47.Rc7 Rc7 48.c6 Kg7 49.Kd6 Rc8 50.Nc5 Rd8 51.Nd7 Kg6 52.Be4 Bf5 53.Bf5 Kf5 54.c7 Rc8 55.Nb6 1–0. Bulcourf – Olivera, Buenos Aires 1978.

9.0-0 Re8=.

9.a4 Qc7 10.Qc2 d5 11.0-0 b6 12.cd5 cd5 13.Rfc1 a6 14.Qb3 Qd6+= 15.Rc2 Bb7 16.Rac1 e4 17.de4+= de4 18.Rd1 Qe7 19.Ne1 Ne5 20.b5+= Nfg4? 21.Bg4 Ng4+/– 22.h3 Be5 23.Ba3 Qh4?! 24.Bf8 Kf8 25.hg4 Qh2 26.Kf1 Rc8 27.Rdc1 Rd8 28.Ne4! Bc8 29.Rc8 (29...Qh1 30.Ke2+–) 1–0. Poschmann,Hans – Oza,Nikunj, CalChess Season opener, 1993.

9.a4 d5 10.0-0=.

8.Nc3 Re8

9.0-0 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 c6=.

9.0-0 Nf8 10.Qb3 h5 11.d4 e4 12.Nd2 N8h7 13.a4 (13.h3 h4+=) 13...h4= 14.h3 Ng5 15.a5 Bf5 16.a6 b6 17.d5. Van Rooijen,Peter (2065) – Leyva,Yunier (2000), ETC–S.15 remoteschach.de, 2005.

9.0-0 Nf8 10.Qb3 h6 11.d4 c6 12.de5+= de5 13.Rfd1 (13.Rad1 Qc7+=) 13...Qc7 14.b5 (14.e4 Ne6 15.c5 Nf4=) 14...e4 (14...Bf5 15.Rac1=) 15.Nd2 Bg4 (15...Bf5 16.Rab1=) 16.h3 (16.Nde4 Ne4 17.Bg4 Bc3 18.Bc3 cb5+=) 16...Be2= 17.Ne2 N8d7 18.bc6 Qc6 19.Nd4 Qc8 20.Nb5 Bf8 21.Nf1 Nc5 22.Qc2 Nfd7 23.Nd6 Bd6 24.Rd6 Ne5 25.Ng3 Ncd3 26.Ne4 Nb2= 27.Nf6 Kf8 28.Qb2 Nc4 29.Nh7 Kg8 30.Nf6 Kf8 31.Nh7 Kg8 32.Nf6 Kf8 ½–½. Howes,Tony – Kocandrle,Jaroslav (2140), internet, 2004.

9.Qb3 a5 10.0-0=.

9.Qb3 a6 10.Ng5 (10.0-0 a5=) 10...h6 (10...a5 11.0-0=) 11.Nge4 Ne4 12.de4 (12.Ne4 Nf6=) 12...c6 (12...a5 13.0-0=) 13.Rd1 Qe7 (13...Qf6 14.0-0=) 14.0-0 b5 (14...a5 15.Qa3=) 15.a4 bc4 (15...Nb6 16.cb5 Be6 17.Qc2 ab5 18.ab5+/–) 16.Qc4+= Bb7 (16...Rb8 17.Rd2+=) 17.Qd3 Bf8 (17...c5 18.Ba3+=) 18.f4 (18.a5 Rab8+/–) 18...a5+= 19.f5 (19.ba5 Nc5 20.Qc2=) 19...gf5= 20.Rf5?? (better is 20.ba5 Nc5 21.Qd2=) 20...ab4–+ 21.Bh5 bc3 (better is 21...Nf6 22.Ne2 Nh5 23.Rh5 Ra4–+) 22.Ba3? Nf6 23.Rf6 Qf6 24.Rf1 Ba6 25.Qa6 Ra6 26.Rf6 Ra4 27.Bc1 Ra1 28.Rf1 Rb8 29.Bf7 Kg7 30.Bc4 d5! 31.ed5 Rbb1 32.dc6 Rc1 33.c7 Rf1 34.Bf1 Ra8 (35.Bd3 Rc8–+) 0–1. Farleigh,Richard – Matamoros Franco,Carlos S (2415), Moscow ol (Men), 1994.

9.Qc2 Nf8 10.0-0 h6 (10...a5 11.a3=) 11.Rfc1 (11.a3 Ne6=) 11...Bf5 (11...Ne6 12.a3=) 12.Nd2 (12.a3 a5+=) 12...N8h7 (12...a5 13.a3=) 13.Nce4 White intends c5 (13.e4 Be6+=) 13...Ng5 (13...Ne4 14.de4 Be6 15.c5=) 14.Ng5+= hg5 15.Ne4 Ne4 (15...g4 16.c5+=) 16.de4 Bd7 (16...Be6 17.c5+=) 17.c5 (17.a4 a5+=) 17...dc5 18.bc5 Qf6 19.Bc4 (19.Rab1 Red8+=) 19...Rad8 20.Qb3 (20.Rab1 Bc6+=) 20...Bc8 (20...Bc6 21.Bd5+=) 21.Rd1 g4 (21...Bf8 22.Qc3+=) 22.Qa4 a6 23.Qa5 (23.Rd3 Be6+=) 23...Rd1 (23...b6 24.Qc3+=) 24.Rd1 Rd8 (24...b6 25.Qc3+=) 25.Rd5 Be6? (better 25...b6!? 26.Qb4 Rd5 27.ed5 Bf8+=) 26.Qc7+– (26.Be5?! Rd5 27.ed5 Qe5 28.de6 fe6+–) 26...Bd5 27.Bd5?? (better 27.ed5 Rf8 28.Qb7+–) 27...Rd5!-/+ 28.ed5 (28.ed5 Qf5 Combination) 28...Qf5 29.h3 (better 29.g3!? Qb1 30.Kg2 Qb2 31.c6 bc6 32.Qd8 Kh7 33.dc6=+) 29...Qb1–+ 30.Kh2 Qb2 31.Qc8 (31.Kg3 gh3 32.Qc8 Bf8-/+) 31...Kh7 32.Qg4 Qf2 33.c6 (33.Qf3 Qa2 34.d6 Qd2 35.Qb7 Qe3 36.Qf7 e4-/+ (36...Qc5?? 37.Qc7 Qe3 38.d7+–)) 33...bc6 34.dc6 Qc2 (34...Qe3?! 35.c7 Bh6 36.c8Q Bf4 37.Qf4 Qf4 38.Kg1 Qd4 39.Kh2–+) 35.Qh4 Bh6 36.Qf6 Qc4 (36...Qa2?! 37.c7 Qc4 38.Qe5–+; 36...Be3?! 37.Qf7 Kh6 38.Qf8 Kg5 39.h4 Kh4 40.Qf6 Kh5 41.Qf3 Kg5 42.Qe3 Kf6 43.Qb6=) 0–1. Sloth,Jorn (2340) – Brynell,Stellan (2500), TCh–XtraCon, 2013. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Nbd7 8.Nc3 Re8)

9.Qc2 Nf8 10.a4 Bd7 11.a5 a6 12.0-0 h5 13.Rfd1 N8h7 14.e4 Bg4 15.Bc1 Nd7 16.Be3 Bf3 17.Bf3 Ng5 18.Be2 Ne6 19.Rdb1 Kh7 20.Qd2 Rg8 21.Bd1 f5 22.f3 Qf8 23.Bb3 Re8 24.Ba4 c6 25.b5 Rc8 26.ba6 ba6 27.Nd5 Ndc5 28.Nb4 Qe8 29.Qd1 Bh6 30.Bf2 Rg7 31.Nc2 Bg5 32.Kh1 Bd8 33.Ne3 Qf7 34.Bg1 Qf8 35.Nc2 Qe8 36.Ne3 Qf7 37.Nc2 Qd7 38.Ne3 Rf7 39.Ra2 Nf4 40.Bc2 Nfe6 41.ef5 gf5 42.Nf5 Nd4 43.Nd4 ed4 44.Bd4 Kg8 45.Bg1 Ne6 46.d4 Ng7 47.Ba4 Qf5 48.Bc2 Qg5 49.Qc1 Qf6 50.Qe1 h4 51.Qe4 Qh6 52.Qg6 Qg6 53.Bg6 Re7 54.Be4 Nh5 55.Bf2 Kg7 56.Bf5 1–0. Rogers – Piket, Groningen 1989.

8.Nbd2 Qe7

9.0-0 Ne8 10.Qb3 Kh8 11.d4 e4 12.Ne1 f5 13.Nc2 Nef6 14.Na3 Rg8 15.Rac1 White prepares the advance c5 15...g5 16.c5 d5 17.Nb5 (17.c6 bc6 18.Rc6 Nf8+=) 17...Nf8 18.f3 a6 19.Nc3 c6 (better 19...ef3!? 20.Rf3 g4=) 20.fe4+= fe4 21.Kf2 (21.Rf2 Ng4 22.Bg4 Bg4+=) 21...Qc7 22.Rh1 (22.Kg1 Qe7=) 22...Ng4=+ 23.Bg4 Bg4 24.Rcf1 Ne6 25.Ne2 Raf8 26.Ke1 Rf7 (26...Rf1 27.Nf1 b5=+) 27.h3 (better 27.Rf7!? Qf7 28.Ng3=+) 27...Be2-/+ 28.Rf7 (28.Ke2 Qg3 29.Re1-+) 28...Qf7 (better 28...Qg3!? 29.Ke2 Qg2 30.Kd1 Qh1 31.Rf1 Qh3-+) 29.Ke2=+ Rf8 30.Rf1 Qh5 31.Ke1 Qh4 32.Ke2 Qg3 33.Rf8 Nf8 34.Kf1 Ng6 35.Qd1 (35.Qc2 Qe3 36.Nb3 Nf4-+) 35...Qe3 36.Qe2 Qf4 (36...Qe2 37.Ke2 Nf4 38.Kf1-+) 37.Qf2 (37.Kg1 Qh4-+) 37...e3 38.Qf4 Nf4 39.Nf3 e2 40.Kg1 Nd3 41.Bc3 Kg8 42.g4 h6 43.Kg2 Kf7 (43...a5 44.ba5 Nc5 45.dc5 Bc3 46.Kf2 e1Q 47.Ne1 Be1 48.Ke1-+) 44.Kg3 (44.Bd2 a5! 45.ba5 Ke6-+) 44...Ke6 45.h4 (45.Bd2 a5! 46.ba5 Bf6-+) 45...e1Q! 46.Be1 (46.Be1 Ne1 Combination; 46.Ne1 Ne1 Combination) 46...Ne1 47.Ne1 Bd4 48.hg5 hg5 49.Nd3 Bc3 50.Kf3 a5 51.a3 ab4 52.ab4 Kd7 53.Ke2 Kc7 54.Kd1 b6 55.Kc2 Bd4 56.Kb3 Kb7 57.Ka3 Ka6 58.Ka4 Be3 59.Ne5 bc5 60.bc5 Bc5 61.Nc6 Kb6 62.Ne5 Be3 63.Kb4 Bd2 64.Kb3 Kc5 65.Nf3 Be3 Black prepares d4 66.Kc3 d4 67.Kd3 Kd5 68.Ne1 Ke5 69.Ng2 Bg1 70.Ke2 Ke4 71.Kf1 (71.Ne1-+) 71...d3 72.Ke1 Kf3 (72...Kf3 73.Kd2 Kg2 74.Kd3 Kf3-+) 0-1. Tamrazyan,Gohar (1955) - Bhatia,K (2035), Batumi GEO, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Nbd7)

9.Qc2 a5 10.a3 Nh5 11.0-0 f5 12.Rfc1 c5 13.ba5 Ra5 14.Nb1 Nhf6 15.Nc3 b6 16.Nd2 Bb7 17.Bf3 Bf3 18.Nf3 Rfa8 19.Nd2 Qf7 20.Rcb1 d5 21.cd5 Nd5 22.Nd5 Qd5 23.Qc4 Qc4 24.Nc4 Ra4 25.Kf1 e4 26.Bg7 Kg7 27.Ke2 Rd8 28.Nb6 Nb6 29.Rb6 Rd3 30.Rc6 Rc4 31.Ra2 Rc1 32.a4 Rdd1 33.Rc5 Re1 34.Kd2 Red1 ½–½. Sobeck,G (2115) – Turner,Ja (2320), Open C, Marianske Lazne CZE, 2010.

9.d4 Re8 (9...e4 10.Ng5=+) 10.Rb1 (10.0-0 e4 11.Ne1 d5=) 10...e4 11.Ng5 h6 12.Nh3 c5 (12...d5 13.Nf4=+) 13.Nf4 (13.a3 a6=) 13...cb4 (13...g5 14.Nh5 Nh5 (< 14...cb4 15.Ng7 Kg7 16.h4+=) 15.Bh5 cb4=) 14.d5 (14.Qb3 a5=+) 14...Ne5 (better is 14...g5 15.Nh5 Nh5 16.Bh5 Bc3=+) 15.f3? (better is 15.Bd4!?=+) 15...ef3 (15...g5 16.fe4 gf4 17.ef4–+) 16.Nf3 (better is 16.gf3 Bf5 17.Be5 de5 18.e4 Be4 19.fe4 ef4 20.Bf3–+) 16...Nf3 17.gf3 Qe3 18.Ng2 Qg5 19.Rg1 Bh3 20.Bf6? Bf6 21.f4 Qf5 22.Rb3 Bg4 23.Re3? Be2 24.Qe2 Re3 25.Qe3 Kf8 26.Kf2 Re8 27.Qb3 Bd4 28.Kf1 Bg1 29.Kg1 Qe4 30.Qb4 Re7 31.Qd6 Kg7 32.h4 Re8 33.h5? gh5 34.c5 Qb1 35.Kh2 Qa2 36.f5 Re2 37.Qg3 Kh7?? 38.f6+– Qd5 39.Qg7 1–0. bvboucher (2020) – nicoleskywalker (1925), net–chess.com, 2005.

8.Nbd2 Re8

9.0-0 h6 10.Rc1 a5 11.b5 Qe7 12.Re1 a4 13.a3 Qe6 14.d4 e4 15.d5 Qf5 16.Nd4 Qg5 17.Qc2 Nc5 18.Nf1 Qh4 19.h3 Qg5 20.Ng3 h5 21.Kh1 h4 22.Nf1 Bd7 23.Nd2 Rab8 24.Bc3 Rbc8 25.Rb1 Rb8 26.b6 c6 27.dc6 bc6 28.Rb2 Rb7 29.Reb1 Reb8 30.Rb4 Kh7 31.R1b2 Kg8 32.Qd1 d5 33.Rb1 dc4 34.Bc4 Nd5 35.Bd5 Qd5 36.f3 Nd3 37.Ne4 Nb4 38.Rb4? c5 39.Nf6 Bf6 40.e4 Qd6 41.e5 Be5 42.f4 0–1. Fritz 5.32 – Fritz 6, 2004.

9.Nf1 a5 10.a3 =+.

9.Nf1 Nf8 10.Ng3= h5 (10...a5 11.b5=) 11.0-0+= Ne6 (11...a5 12.a3+=) 12.Qc2 (12.Qd2 Qe7+=) 12...Nh7 (12...Nd7 13.Ne4+=) 13.d4 (13.Ne4 Nhg5+=) 13...h4= 14.Ne4 (14.Nh1 ed4 15.Nd4 h3=) 14...f5 15.Ned2 (15.Nc3 ed4 16.ed4 h3=) 15...e4 (15...ed4 16.ed4 a5 17.ba5=) 16.Ne1+= h3 17.g3 (17.d5 Neg5+=) 17...Qg5 (17...Nf6 18.a3=) 18.d5+= Bb2 (18...Nd8 19.Bg7 Kg7 20.Qc3 Qf6 21.Rc1+=) 19.Qb2 Ng7 20.Qc3 (20.Nc2 a5+=) 20...Nf6 21.Nc2 Bd7 22.Nd4 a6 23.c5 Nd5= 24.Bc4 c6 25.cd6 Rac8 26.Bd5 cd5+= 27.Qb3 Re5 28.Rac1 Qf6 29.Rc8+/– Bc8 30.Rc1 Bd7 31.f4!+/– ef3 32.N2f3 Qd6 33.Ne5 Qe5 34.Nf3 Qe4+= 35.Kf2 Bc6 36.a4 Nh5 37.b5+/– ab5 38.ab5 Bd7 39.Rc7+– Nf6 40.Rb7 Be6 41.Rb8 Kg7 42.Qc3 Kh7?? 43.Qc7 (43.Qc7 Nd7 44.Ng5 Kh6 45.Ne4 fe4 46.Re8 Bg4 47.Qf4 g5 48.Qf7 Nf8 49.Rf8 Bf5 50.Rh8 Bh7 51.Rh7) 1–0. Borghese – Sorgi, Rome op, 1973.

9.0-0 c6

10.a4 a6 11.Qc2 b6 12.a5 b5 13.h3 Bb7 14.e4 c5 15.Qb3 cb4 (15...bc4!? 16.Nc4 Qe7=) 16.Qb4+= Re6 (16...Bc6 17.Qd6 Rc8 18.Qa3+= (worse 18.Ne5 Ne5 19.Be5 Re5 20.Qd8 Rd8-/+)) 17.Ng5 Re8 18.Qd6?? (better 18.cb5 d5 19.f4+–) 18...h6 (18...Bf8!? 19.Be5 Re5 20.Nf7 Kf7 21.Qd4–+) 19.Ngf3?? (better 19.Nf7 Kf7 20.Qb4-/+) 19...Nh5 (better 19...Bf8 20.Be5 Bd6 21.Bd6 Re6–+) 20.Qb4 Nf4 21.Rfe1 Ne2 22.Re2 Qc7 (22...Bf8 23.Qc3+=) 23.Rc1 (better 23.cb5 ab5 24.Qb5+–) 23...Nc5?? (better 23...Bf8 24.c5 Bc5+= (worse 24...Nc5 25.d4+–)) 24.cb5+– Qd7 (24...Rac8 25.d4 ed4 26.Nb3+– (26.Bd4?! Bd4 27.Nd4 Qe7+–)) 25.Rc5 Bf8 26.Ne5 (worse 26.Be5 Bc5 27.Qc5 Qd3 28.ba6 Qa6+–) 26...Bc5 27.Nd7 (better 27.Qc5 Qb5 28.Qc3+–) 27...Bb4 28.Nf6 Kf8 29.Ne8 Ke8 30.ba6 (30.b6 Ba5 31.Nc4 Bb4+–) 30...Ba6 31.Nc4 Bb5 (31...Bc4 32.dc4 Ra5 33.Kf1+–) 32.Be5 (32.Bg7 h5+–) 32...Bc4 33.dc4 Ra5 34.Bf6 Rc5 35.Rb2 (35.Rc2 Rc6 36.e5 Be7+–) 35...Ba3? (better 35...Rc4!? 36.e5 Kd7+–) 36.Rb8 Kd7 37.Rb7 Ke6 38.Be7 Ra5 39.Ba3 Ra3 40.f4 Ra4 (40...Re3 41.Rb6 Ke7 42.f5+–) 41.Rc7 f6 (41...g5 42.g3+–) 42.Kh2 (42.Rc6 Ke7+–) 42...Ra2 (42...Kd6 43.Rc8+–) 43.Kg3 (43.Rc6!? Ke7+–) 43...Ra3 44.Kf2 h5 (44...Ra2 45.Ke3 Rg2 46.Rg7+–) 45.g3 (better 45.Rc6!? Ke7 46.f5+–) 45...Ra2+– 46.Ke3 Ra3 47.Kd4 Rg3 48.Rc6 Kf7 49.Rc7 Ke6 50.c5 (50.Rg7 Rh3 51.Rg6 Kf7+–) 50...Rh3+– 51.Rc6 (51.Rg7!?+–) 51...Kf7. GuestYTSB – pinchubhai, freechess.org, 2017.

10.a4 d5 11.Qc2 h6 12.Rfd1 Qc7 13.Rac1 dc4 14.Nc4 Nd5 15.Qd2 N7b6 16.a5 Nc4 17.dc4 Ne7 18.b5 Be6 19.b6 ab6 20.ab6 Qb6 21.Be5 Be5 22.Ne5 Qa5 23.Qb2 Qa2 24.Rc2 Qb2 25.Rb2 Ra7 26.Rdb1 Bc8 27.Bg4 f5 28.Be2 Rd8 29.f4 Kg7 30.Kf2 Kf6 31.Rd1 Rd1 32.Bd1 Ra1 33.Bf3 Rc1 34.Ke2 Rc3 35.Kd2 Ra3 36.Be2 Ra4 37.Kc3 Ra3 38.Kd4 Ra5 39.Nd3 b5 40.Ne5 bc4 41.Bc4 Ba6 42.Nd7 Kg7 43.Ba6 Ra6 44.Nc5 Ra3 45.Rb7 Kf6 46.Nd7 Ke6 47.Nc5 Kf6 48.Nd7 Ke6 49.Nf8 Kf6 ½–½. Gambaeck,Bjoern (2190) – Kamieniecki,Tomasz (2015), Najdorf Memorial gr.A B Warsaw Poland, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.0-0 c6 9.Nbd2 Re8)

10.a4 d5 11.e4 Nh5 12.ed5 cd5 13.cd5 Nf4 14.d4 ½–½. Nunez,Antonio (2340) – Espinosa,Julio (2275), Fuerteventura op, 1992. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.d3 e5 7.Be2 Nbd7 8.0-0 Re8 9.Nbd2 c6)

10.Qb3 a6 11.Rfc1 (11.Ne4 Qe7=) 11...Qe7 (11...a5 12.a3=) 12.Bf1 (12.a3 b6=) 12...d5 (12...b6 13.Be2=) 13.cd5 Nd5 14.a3 a5 (14...Ra7 15.Be2=) 15.b5+= a4 16.Qa2 Nc5 (16...Nb8 17.bc6 bc6 18.Rab1+=) 17.d4 (17.Qc4 Nd7 18.bc6 N7b6 19.cb7 Bb7+–) 17...ed4 (17...Be6 18.dc5 (18.de5 Nc3 19.Bc3 Ba2–+) 18...Nc3 19.Qe6 (19.Bc3?! Ba2 20.Ra2 Qc5=) 19...Qe6 20.Bc3+–) 18.Bd4+– Bd4 19.ed4 Ne6 20.bc6 bc6 (20...Rd8 21.Rab1+–) 21.Rc6 Rd8 22.Re1 Bb7 23.Rcc1 (23.Rc2 Rab8+–) 23...Ndf4 24.g3 Bd5 25.Qc2 (25.Qa1 Nh5 26.Bg2+–) 25...Qb7 (better 25...Bf3!? 26.Nf3 Nd5+–) 26.Rb1+– (worse 26.gf4 Bf3 27.Nf3 Qf3+–) 26...Qd7 (26...Bb3 A) 27.Nb3 Qf3 28.Nd2 Nd4 29.Nf3 Nc2+–; B) 27.gf4?! Qf3 (27...Bc2?? 28.Rb7 Nd4 29.Bc4+–) 28.Qb3 Qb3 29.Nb3 ab3+=; C) 27.Qb2 Nd5 28.Nb3 ab3 29.Qb3+–) 27.gf4 Nd4 28.Qc3 (28.Qd1 Qg4 29.Bg2 Nf3 30.Nf3 Be4 31.Re4 Rd1 32.Rd1 Qc8+–) 28...Qg4 29.Bg2 Rac8 (29...Bf3 30.Nf3 Rac8 31.Qd4 Rd4 32.Nd4 Qf4 33.Rbd1+–) 30.Qd4+– Bf3 31.Qd8! Rd8 32.Nf3 Qf4 (32...Qf5 33.Rb4 Qc2 34.f5+–) 33.Rb4 Qf6 34.Ra4 Rd3 (34...Qc3 35.h3+–) 35.Ne5 Rd2 36.Ng4 (36.Bf3 Qb6 37.Ra8 Kg7+–) 36...Qd6 (36...Qb2 37.Rf4 Qc3 38.Rf3+–) 37.Ne3 (37.Ra7 Qc5 38.Re8 Kg7+–) 37...Ra2 (37...Qf6 38.Ra8 Kg7 39.Rf1+–) 38.Rd1 (38.Bd5 Rd2 39.Bf3 Ra2+–) 38...Qf6 (38...Qc5 39.Rd7 Ra1 40.Nf1+–) 39.Rf1 (39.Ng4 Qg5+–) 39...Kg7 40.Ra7 Rd2 (40...Qg5 41.a4+–) 41.a4 Qd4 42.Ra8 f5 43.h3 (43.a5 f4 44.Nd5 Qe5 45.Ra7 Kh6+–) 43...h5 44.Ra5 (44.a5 f4 45.Nd5 Rd3+–) 44...Ra2 45.Rf5! Qa4 (45...gf5 46.Nf5 Double attack) 46.Rc5 Qf4 47.Rc2 (47.Rc4 Qf6+–) 47...Rc2 48.Nc2 g5 49.Ne3 g4 50.hg4 hg4 51.Re1 Qb4 (51...Kh6 52.Nd5 Qd4 53.Be4+–) 52.Rc1 Kg6 (52...Qd2 53.Rc4+–) 53.Rc4 (53.Bd5 Qd2 54.Rc4 g3 55.Rg4 Kf6 56.Rg3 Qd4+–) 53...Qb1 54.Bf1 Kh5 (54...g3 55.Rg4 Kf6 56.Rg3+–) 55.Rg4 Qa1 (55...Qc1 56.Kg2 Qc6 57.Kg3+–) 56.Rg3 Kh4 (56...Kh6+–) 57.Kh2 Qe5 (57...Qf6 58.f4! Qb2 59.Bg2+–) 58.Be2 (58.Be2 Qg3 59.fg3 Kg5 60.g4+–) 1–0. Epishin,Vladimir (2570) – Michalczak,Thomas (2245), 17. Bad Zwesten Op, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Re8 8.Nbd2 Nbd7 9.0-0 c6)

10.Qb3 b6 11.Ne4?! Qe7 12.Nf6 Bf6 13.e4 Bb7 14.a4 d5! 15.cd5?! (15.Nd2) 15...cd5 16.ed5 Qd6 –+. Hammer – Lau, Cleveland 1979.

10.Qb3 Qc7 11.Rfd1 h6 12.Bc3 Nf8 13.a4 g5 14.Nf1 Ng6 15.b5 c5 16.a5 Qe7 17.Ng3 Be6 18.h3 g4 19.hg4 Ng4 20.Re1 f5 21.Bf1 Rf8 22.Nh2 Nh2 23.Kh2 h5 24.Qd1 f4 25.Ne4 Bg4 26.Be2 Qh4 27.Kg1 Rad8 28.g3 fg3 29.fg3 Qh3 30.Bg4 hg4 31.Ra2 Qh5 32.Rh2 Qf5 33.Rf1 Qd7 34.Rhf2 Rf2 35.Nf2 e4 36.Bg7 Kg7 37.Ng4 ed3 38.Qa1 Ne5 39.Ne5 de5 40.Qe5 Kg8 41.Qg5 1–0. Schlosser – Gallagher, Kecskemet 1990.

10.Qb3 Qe7 11.Rac1 h6 (11...b6 12.Bc3=) 12.Rfe1 (12.Bc3 b6+=) 12...Kh7 (12...b6 13.Bc3=) 13.Nf1 (13.h3 Kg8+=) 13...a5= 14.a3 (14.Qa3 d5 15.c5 e4 16.de4 de4=) 14...ab4 (14...e4 15.de4 Ne4 16.Ng3=) 15.ab4 e4 16.N3d2 (16.de4!? Ne4 17.Ra1 Ra1 18.Ra1 Bb2 19.Qb2=) 16...ed3+= 17.Bd3 d5 (17...Ne5 18.Be2+=) 18.c5 (18.f4 Rd8=) 18...Ne5+= 19.Bb1 Ne4 (19...Nh5 20.f4 Nd7 21.Nf3+=) 20.f4 (worse is 20.Ne4 de4 21.Bd4 f5-/+) 20...Nd2 (20...Nc4 21.Bg7 Ned2 22.Nd2 Nd2 23.Qb2=) 21.Nd2= Nc4 22.Bg7 (22.Nc4 dc4 23.Rc4 Be6 24.Bg7 Bc4+= (worse is 24...Kg7 25.Qc3 Qf6 26.Rd4+/–)) 22...Nd2+= 23.Qc3 Nb1 (23...Ne4 24.Be4 Qe4 25.Rb1+=) 24.Rb1= Qe4 25.Bd4 Bf5 26.Rb2 (26.Ra1 Qe6=) 26...Ra4 27.h3 (27.Be5 Rea8+=) 27...h5 (27...Qe6 28.Bf6+=) 28.Qd2 (28.Be5 Rea8=) 28...Ra3 (28...Rea8 29.b5+=) 29.Qf2 Rd3 (29...Qe7!?+=) 30.Ra1+= Qe7 31.Kh2 (31.b5 Qe6 32.Ra7+/–) 31...g5? (31...Qe6!?+=) 32.Ra7 (better is 32.fg5 Qg5 33.Ra7+–) 32...Rf8? (32...Qc7 33.Qg3 f6 34.fg5 Qg3 35.Kg3 fg5 36.Rb7 Kg6 37.Rg7 Kh6+–) 33.b5+– g4 (33...cb5 34.Rb5 g4+–) 34.Qe2 (better is 34.bc6 Rd4 35.ed4+–) 34...cb5+= 35.c6 (worse is 35.Rb5 Rd4 36.Rbb7 Qe4-/+) 35...Qh4?? (35...Rd4 36.ed4 Qe2 37.Re2 bc6 38.Rc7 gh3 39.Re5+=) 36.Rb7?? (better is 36.cb7 g3 37.Kh1 Rd4 38.ed4 Qf4 39.Ra1+–) 36...Kh6 (better is 36...gh3!? 37.Qf2 Qg4+=) 37.Qf2+– (37.R2b5 gh3 38.g3 Qg4-/+) 37...Qf2 38.Rf2 Rc8 (38...Rb3 39.c7+–) 39.c7 (39.Rf7!? Rd4 40.ed4 Kg6+–) 39...b4 (39...gh3 40.gh3 Be4 41.Rc2+–) 40.hg4 (40.Rb6 Kh7 41.Rf6 Be4 42.Rf7 Kg6 43.Rg7 Kh6+–) 40...hg4 41.Kg3 ½–½. Pavlov,Denis – Lyanguzov,Oleg, Kazan RUS, Tatarstan Men Ch, 2012. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 c6 8.Nbd2 Re8 9.0-0 Nbd7)

10.Qb3 Qe7 11.Rfd1 h5 12.Rac1 b6 13.a4 Bb7 14.a5 ba5 15.ba5 Rab8 16.Qa2 c5 17.Ba1 Bc6 18.Rb1 Rb1 19.Rb1 Rb8 20.Bd1 Rb1 21.Qb1 e4 22.de4 Ne4 23.Bg7 Kg7 24.Ne4 Be4 25.Qb2 Qf6 26.Qf6 Kf6 27.Nd2 Bb7 28.f4 Nb8 29.Ba4 Bc6 30.Bd1 Bb7 31.Ba4 Bc6 32.Bd1 Bb7 ½–½. Fries Nielsen – Kristensen, Ch–DEN corr, 1993. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.0-0 Re8 9.Nbd2 c6)

10.Qb3 Qe7 11.h3 b6=.

10.Qc2 a5 11.a3 a4 12.Rfe1 Qe7 13.e4 Nh5 14.d4 Nf4 15.Bf1 ed4 16.Bd4 Ne5 17.Ne5 de5 18.Bc5 Qg5 19.Nf3 Qh5 20.Rad1 Bg4 21.Re3 Bh6 22.Rc3 Rad8?? (better 22...Nh3 23.Kh1 Bf4-/+) 23.Bb6 (23.Rd8 Rd8 24.Bb6 Ra8=) 23...Rd1 24.Qd1 Nh3? (better 24...Rf8 25.h3 Bf3 26.Rf3 f5+=) 25.gh3+- Bh3 26.Bh3 Qh3 27.Qf1 (27.Kh1 Qg4+-) 27...Qe6 (27...Qg4!? 28.Kh1 Qe4 29.Qd1+/-) 28.Qe2 Bf4 29.Ne1 h5 (29...f5 30.Nd3+-) 30.c5 Kg7 31.h3 Re7 32.Rd3 Rd7 33.Ng2 (33.Kg2 f5+-) 33...Re7? (better 33...Rd3 34.Qd3 Qb3 35.Nf4 ef4 36.Qd4 Kh7+-) 34.Bd8 Rd7 35.Qd1 (better 35.Nf4 ef4 36.Bg5+-) 35...Qh3 (35...Rd3 36.Qd3 Bh6 37.Bc7+-) 36.Rd7 (better 36.Nf4 Rd3 37.Qd3 Qd3 38.Nd3 f6+-) 36...Qh2 37.Kf1 Qh1 38.Ke2 Qg2 39.Rf7 (better 39.Qd3 Qg4 40.Kf1+-) 39...Kh6?? (39...Kf7 40.Qd7 Kg8 41.Qe6 Kh7 42.Qf7 Kh6 43.Qf8 Kh7 44.Qf7 Kh6 45.Qf8 Kh7 46.Qf7=) 40.Qd7 (better 40.Qd3+-) 40...Qe4= 41.Kf1 Qh1 42.Ke2 Qe4 43.Kf1 Qc4 (43...Qc4 44.Kg1 Qf7 45.Qf7 h4 46.Qf6 Kh7 47.Be7 b6 48.Bf8 Bh6 49.Qf7 Kh8 50.Bh6 bc5 51.Qg7). opperwezen - amazingoid (2550), Casual Bullet game, lichess.org, 2016. (=1.b4 c6 2.Bb2 d6 3.c4 Nd7 4.d3 Ngf6 5.Nd2 g6 6.Ngf3 Bg7 7.e3 0-0 8.Be2 e5 9.0-0 Re8)

10.Qc2 b6 11.Rfe1 Bb7 12.Bf1 (12.d4 a5 13.a3 e4=) 12...d5 (12...a5 13.ba5 Ra5 14.d4=) 13.Rad1 (13.d4 e4 14.Ng5 h6=) 13...Qe7 14.a3 e4 (14...a5 15.cd5 cd5 16.b5=+) 15.Nd4 ed3 (15...c5 16.bc5 Nc5 17.Be2=) 16.Bd3+= Ne5 17.Bf1 c5 18.bc5 bc5 19.N4b3 Rac8 20.Na5 Ba8 21.cd5 Nd5 22.Nac4 Nb6 23.Nb6 (23.Be5 Be5 24.Ne5 Qe5+=) 23...ab6= 24.f4 Ng4 25.Bg7 Kg7 26.Nc4 Rb8 27.a4 Kg8 28.h3 Nf6 29.Qb2 Red8 30.Qe5 Re8 31.Rd6 Qe5 32.fe5 Nd5 33.e4 Nb4 34.Rb6 Rb6 35.Nb6 Bc6 36.a5 Re5= 37.a6 Re7 38.Rc1 Be4 39.Rc5 Na6? 40.Ba6 Re6 41.Rc8 Kg7 42.Rb8 (42...f5 43.Bc4+–) 1–0. Stefanov – Unzicker, Eforie, 1988. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 d6 5.Be2 e5 6.d3 0-0 7.Nbd2 Nbd7 8.c4 c6 9.0-0 Re8)

10.Qc2 Nf8 11.a3 Be6 12.Ng5 (12.c5 a5+=) 12...Rc8 (12...Bg4 13.f3 Bc8 14.Nge4=) 13.Ne6 Ne6 14.Nf3 Nd7 15.e4 d5 16.Rfd1 (16.Qa4 a6=) 16...g5 (16...d4 17.Bc1=) 17.ed5 (17.Qa4 Nf4 18.Re1 a6+=) 17...cd5= 18.d4 White prepares the advance c5 (18.Nd2!?=) 18...e4=+ 19.Ne5 Qc7 (19...dc4 20.Nd7 (20.Bc4? b5–+) 20...Qd7 21.d5=+) 20.c5 (20.Qd2 dc4 21.Nc4 Nf4+=) 20...Nf4 (20...Ne5 21.de5 Red8 22.Bg4 Be5 23.h3=+) 21.Bg4 (21.Bb5 Ne5 22.Be8 Nh3 23.gh3 Nf3 24.Kf1 Re8=) 21...Be5 22.de5 Qd8 (22...Rcd8!?=+) 23.e6 (23.f3!? Nd3 24.Bf5+–) 23...fe6= 24.Qc3 e5 25.Qb3 Rc7 (25...Kh8=) 26.Bf5?? (better 26.g3 Nd3 27.Qd5 Kg7 28.Qe4 Nb2 29.Rd2+–) 26...Nf6=+ 27.f3 (better 27.Ra2=+) 27...Ng2?? (better 27...ef3 28.Qf3 Rf7-/+) 28.Kg2+– ef3 29.Qf3 Rf7 30.Qh3 d4 (30...g4 31.Qb3+– (31.Bg4? Ng4 32.Rd3 Qg5–+)) 31.Be6 g4? (better 31...Re6 32.Qe6 Qd5 33.Qd5 Nd5 34.Bd4 ed4 35.Rd4 Ne3 36.Kg1 Nc2 37.Rd8 Kg7+–) 32.Bg4?? (better 32.Bf7 Kf7 33.Qh4 Qd5 34.Kg1+–) 32...Ng4–+ 33.Kh1 (33.Rd3 Nf2 34.Qg3 Kh8 35.Rf3–+) 33...Nf2 (33...Nf2 34.Kg2 Qd5 35.Kf1 Nh3 36.Ke1 Qg2 37.Bd4 ed4) 0–1. Goldmund,Heike – Mazo,Joel (1615), FICGS, 2013.

10.Qc2 h5 11.Nb3 Nh7 12.e4 c5 13.Bc3 Qe7 14.Qb2 Ndf8 15.Ne1 Ne6 16.bc5 dc5 17.f4 ef4 18.Bg7 Ng7 19.Rf4 Qg5 20.Rf2 Bg4 21.Nf3 Bf3 22.Rf3 Qe7 23.Raf1 Ng5 24.Rf6 Rf8 25.Qd2 N7e6 26.Qe3 b6 27.Qg3 Nh7 28.R6f2 Qg5 29.Qg5 Nhg5 30.h4 Nh7 31.g4 hg4 32.Bg4 Rad8? 33.Be6 fe6= 34.Nc1 Kg7 35.Rf8 Nf8 36.Kf2 Nd7 37.Ke2 Rh8 38.Rf4 Nf6 39.e5= Nd7 40.Re4 Rh5-/+ 41.Ke3 Ne5 42.Ne2 Rf5 43.Nf4 Kf7 44.Kd2 Rf6 45.h5 gh5 46.Re5 Rf4–+ 47.Rh5 Kg6 48.Rh8 Rf7 49.a4 Kf6 50.a5 Rd7 51.a6 Ke5 52.Ke3 Rg7 53.Ra8 Kd6 54.Ke4 Rg4 55.Kf3 Rg7 ½–½. Klinke,Werner – Crede,Dietmar (2180), VK Gr4, 1999.

10.Qc2 h6 11.Rfc1 g5 12.Ne4 White prepares c5 (12.h3 Qc7+–) 12...Nf8 (12...Ne4 13.de4 g4 14.Nd2+=) 13.c5+– Ne4 14.de4 dc5 15.bc5 Qa5 16.a4 Bg4 17.h3 Bf3 18.Bf3 Rad8 19.Qc4 Ne6 Attacks the isolani on c5 20.Ba3 Bf8 The pressure on the isolated pawn grows 21.Bb4 Qa6 22.Qa6 (22.Qc3 b6 23.cb6 c5+–) 22...ba6 23.Rc4 Rd3 24.Rac1 Rb3 25.Bd1 Rd3 26.Kf1 Rb8 27.Ke2 Rd7 28.Bc2 (28.a5 Be7+=) 28...Rdb7= 29.Ba3 a5 30.Rd1 Be7 31.g3 Kf8 32.Rf1 Rd7 33.Rd1 Rd1 34.Kd1 Ke8 (34...h5 35.Kc1=) 35.Kc1+= Rb7 36.Bd1 Rb8 37.Kc2 Nc7 38.Bh5 (38.Be2 Na6+=) 38...Na6 39.f4 Nb4 40.Kd2 Rd8 (40...Na2 41.fe5 Rb3 42.Bc1=) 41.Ke2 gf4 42.ef4 (42.gf4 ef4 43.ef4 Rb8+=) 42...Rd4 43.Rd4 ed4 44.e5 Kf8 45.f5 f6 (worse 45...Bc5 46.Bc1+–) 46.ef6 Bf6 47.Bc1 Kg7 48.Bf4 Nd5 49.Bd6 Nc3 50.Kd2 Na4 51.Bf3 Nb2 (51...Nc3 52.Kc2=) 52.Bc6= Nc4 53.Ke2 Nd6 54.cd6 Be5 55.d7 Bc7 56.Kd3 Bb6 57.g4 Kf6 58.Ke4 h5?? (better 58...d3=) 59.gh5+– d3? (better 59...Kg5!?+–) 60.h6 d2 61.Ba4 Bd8 62.Kd5 1–0. Mrykhin,Igor (2145) – Isakov,Andrey (2285), 2015. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.0-0 e5 7.d3 Re8 8.c4 c6 9.Nbd2 Nbd7)

10.Re1 d5 11.cd5 cd5 12.Rc1 a5 13.b5 b6 14.a4 Bb7 15.Qb3 Nc5 Black plans e4 16.Qa3 e4 17.de4 de4 18.Nd4 Nd5 19.Nc4 (19.N2b3 Nd3 20.Bd3 ed3=) 19...Nb4= 20.Red1 Nbd3 21.Bd3 ed3?? (better 21...Nd3 22.Rc2 Rc8=+) 22.Bc3?? (22.Nb6 Qb6 23.Qc5+- (23.Rc5?! Bf8 24.Rc6 Bc6=)) 22...Qg5?? (better 22...Bg2 23.Kg2 Qd5 24.Nf3 Re4-/+) 23.g3?? (better 23.Nc6!? Bf8 24.Bb2 (24.Nb6 Nd7 25.Nd7 Ba3 26.Nf6 Qf6 27.Bf6 Bc1-+) 24...Bc6 25.bc6+/-) 23...Qg4 (23...Bd4 24.Nb6 Be3-+) 24.Nd6? (24.Nc6 Qc4 25.Bg7 Qd5=) 24...Bd5 (better 24...Bd4!? 25.ed4 Bf3-+) 25.f3-/+ Qh3?? (better 25...Qg5 26.e4 Red8 27.ed5 Rd6-+) 26.Ne8+/- Re8 27.e4 (better 27.Re1+=) 27...Ne4 28.fe4 (28.Rd3 Ng3! 29.hg3 Qg3 30.Kf1 Bc4-+) 28...Be4 (28...Re4 29.Rd2 Re2 30.Re2 de2 31.Kf2 Qg2 32.Ke1 Qf1 33.Kd2 Bh6 34.Kc2 Be4 35.Kb3 Bc1 36.Qd6 Qd1 37.Kc4 Qd3 38.Kb3 Qc3 39.Kc3 e1Q 40.Kc4 Qf1 41.Ne2 Qe2 42.Kc3 Bb2 43.Kb3 Qc2 44.Ka2 Bd4 45.Ka3 Qb2) 29.Qb2 Bh6 30.Qf2?? (30.Nf5 gf5 31.Bd4-+) 30...Be3!! 31.Qe3 (31.Qe3 Qg2 Mate attack) 31…Qg2 0-1. pacalmisu (2145) - ItalianMachine (2260), Rated Blitz game, lichess.org, 2015.

10.Ne4 Ne4 11.de4 Qf6 12.Qd3=.

10.Ne4 Nf8 11.Qc2 (11.c5 Ne4 12.de4 dc5 13.Qd8 Rd8 14.bc5 Bg4=+) 11...Qc7 (11...Ne4 12.de4 Qf6 13.Rfd1=) 12.Rac1 (12.Rfd1 Ne4 13.de4 Ne6+=) 12...Bd7 (12...Ne4 13.de4 a5 14.a3=) 13.Rfd1+= Rad8 14.Nfd2 (14.c5 Ne4 15.de4 Be6+=) 14...Ne4 15.de4 Be6 16.a3 Qe7 17.Nf3 f6 (17...f5 18.ef5 gf5 19.e4+=) 18.Rd2 (18.Qa4 a6+=) 18...Rd7 (18...f5 19.ef5 gf5 20.e4+=) 19.Rcd1 Red8 (19...f5 20.ef5 gf5 21.c5 dc5 22.Ne5 Rd2 23.Qd2 cb4 24.ab4+=) 20.Qc3 (20.Qa4 Qf7+=) 20...d5 21.ed5 cd5 22.cd5 Rd5 23.Bc4 Rd2 24.Rd2 Rc8 25.Be6 Qe6 26.Qd3 e4 27.Qb5 ef3 28.Qb7 Qc6 29.Qc6-/+ Rc6 30.gf3 f5 31.b5 Rc4 32.Bd4 Bd4–+ 33.ed4 Ne6 34.d5-/+ Rd4 (35.Rd4 Nd4–+) 0–1. Gibbons,Robert (2095) – Green,Peter (2245), Open Auckland, 2003.

10.h3 b6 11.Qc2 Bb7 12.Rfd1 Qc7 13.a3 c5 14.b5 h6 15.Qb3 a5 16.Nh2 a4 17.Qc2 Ra5 18.Rab1 Raa8 19.Bf3 d5 20.cd5 Nd5 21.Nc4 Nf8 22.Rbc1 Nd7 23.Be4 f5 24.Bf3 h5 (24...Re6 25.e4 Ne7 26.Re1+=) 25.Ba1 Bf6 26.Be2 Re6 27.Nf3 h4 28.Re1 Nf8 29.e4 Nf4 30.Bf1 Nd7 31.Bc3 Re7 32.Qb2 Kh7 33.Re3 Rae8 34.Rce1 Rg7 35.Kh1 Kg8 36.Qc2 Ra8 37.Qd1 Re7 38.Bb2 Rae8 (38...Ree8 39.Kg1+=) 39.Qa4+– fe4 40.de4 Ne6 41.Qb3 Nd4 (41...Kg7 42.Qc3+–) 42.Qa2 (42.Nd4 ed4 43.Nd6 Kg7 A) 44.Nb7? de3 45.Bf6 Nf6–+ (45...Kf6?! 46.Qc3 Qe5 47.Re3-/+); B) 44.Ne8 Re8 45.R3e2+–) 42...Kg7+– 43.a4 Nc2 44.Bc3 White plans a5 (44.Be5 Ne5 45.Qc2 Nf3 A) worse 46.Rf3 A1) worse 46...Re4 47.Rfe3 Qf4 48.Bd3 (48.Nb6 Be5 49.Rg3 hg3 50.Nd5 Re1 51.Qd3 Qf2 52.Qg6 Kg6 53.Ne7 Re7 54.a5 Qf1) 48...Re3 49.Ne3+= (worse 49.fe3 Qg3 50.Re2 Qh3 51.Kg1 Qg3-/+); A2) 46...Be4 47.Re4 Re4-/+; B) 46.gf3+–) 44...Ne3= 45.Re3 Ra8 46.a5 ba5 47.Ba5 Qb8 48.Qd2 Bc8 49.Qb2 Bb7 0–1. aperturaf (1800) – pierred (2825), net–chess.com, 2016.

10.Qc2 Qe7

11.a3 Nf8 12.Rfc1 Ng4 13.c5 d5 14.e4 Ne6 15.Bf1 Ng5 16.Ng5 Qg5 17.Nf3 Qd8 18.h3 Nh6 19.Re1 d4 20.Nd2 f5 21.ef5 gf5 22.f4 Nf7 23.fe5 Ne5 24.Nc4 Qd5 25.Qf2 Bd7 26.Be2 Rf8 27.Kh1 Rae8 28.Nd6 Re6 29.Qd4 Qd4 30.Bd4 Nd3 31.Bg7 Ne1 32.Bc4 Kg7 33.Be6 Be6 34.Re1 Kf6 35.Nb7 Bd5 36.Kh2 Rg8 37.g3 f4 38.Rf1 f3 39.Nd6 Ke5 40.Re1 Kd4 41.Nf5 Kd3 42.Kg1 a5 43.Kf2 ab4 44.Ne7 Rb8 45.Nd5 ba3 46.Ne7 Re8 47.Kf3 a2 48.Ra1 Re7 49.Ra2 Re5 50.Ra7 h5 51.Rd7 Kc4 52.Kf4 Rc5 53.Rg7 Rd5 54.h4 c5 55.Rg5 Kd4 56.g4 hg4 ½–½. Csom – Hug, Pula 1975.

11.Rfd1 d5 (11...a5 12.a3=) 12.cd5 (12.c5 Rb8=) 12...cd5 (12...Nd5 13.a3=) 13.Qb3 (13.a3 d4=) 13...b6 (13...Bf8!?=) 14.Rac1 Qd6 15.d4 (15.h3+=) 15...ed4 (15...e4 16.Ne5+=) 16.Nd4 (16.Bd4 Bb7+=) 16...Ne5 (better is 16...a5 17.ba5 Ra5+/–) 17.Nb5 Qe7 18.Nc7 Nfg4 19.Nf1 Be6?? (19...Nc4 20.Ne8 Bb2 21.Rb1= (worse is 21.Bc4 Bc1 22.Bd5 Rb8 23.Rc1 Qe8+–)) 20.Bd4 (20.Na8 Ra8 21.h3 d4+–; 20.Ne8 Re8 21.Qa4 Nd3 22.Rd3 Bb2+–) 20...Qh4 21.g3 Qh3 (21...Qf6 22.Bg4 Bg4 23.Ne8 Re8 24.Be5 Bd1 25.Bf6 (25.Qd1?! Qe5 26.Qb3 Qd6=) 25...Bb3 26.Bg7 (26.ab3?! Bf6 27.Rc7 Re7=) 26...Ba2 27.Bd4+–) 22.Qb2 (22.Na8 Ra8 23.Rc2 Kh8+–; 22.Ne8?! Re8 23.Rc7 Ra8+–) 22...Bf5 23.f3 Nh2 24.Nh2 Qg3 25.Kh1 Bh3 (25...Nc4 26.Bc4 Bd4 27.Rd4 Qc7 28.Bd5 Qb8 29.Ba8 Qa8+–) 26.Rg1 Qf2 27.Na8 1–0. Okrajek,Alexander (2295) – Mertin,Theodor (2140), Werther Schloss op–A 8th, 2002. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.d3 c6 9.Nbd2 Re8)

11.Rfe1 Nf8 12.c5 N6d7 13.cd6 Qd6 14.Nc4 Qe7 15.Rab1 f6 16.Ba3 Ne6 17.b5 c5 18.d4 e4 (18...ed4!? 19.ed4 f5+/–) 19.Qe4+– Nd4 20.Qd5 (20.Qd4! cd4 21.Be7 Re7 22.ed4+–) 20...Qe6 21.Qe6 Ne6 (21...Re6?? 22.ed4 Bf8 23.Rbd1+–) 22.Nfd2 b6 23.Nd6 Rd8 24.N2c4 Ndf8 (24...Ne5 25.Rbd1 Kf8 26.Ne5 fe5 27.Bb2+=) 25.Bb2 Rb8 26.a4 Nc7 27.Nc8 Rbc8 28.g4 Kf7 29.Red1 Ne8 30.a5 Rb8 (30...Nd7 31.Ra1 Rb8 32.Bf3+/–) 31.ab6 (31.Rd8 Rd8 32.ab6 ab6 33.Nb6 Nd6+–) 31...ab6 (31...Rd1 32.Rd1 ab6 33.Bf3+/–) 32.Bc3 (32.Rd8 Rd8 33.Nb6 Nd6+–) 32...Ne6 (32...Rd1 33.Rd1 Nc7 34.Nd2=) 33.Ra1 (better is 33.Rd8!? Nd8 34.Ra1+/–) 33...Rb7? (better is 33...Rd1 34.Bd1 N8c7=) 34.Bf3 (34.Bf3 Rd1 35.Rd1+/–) 1–0. Nguyen Huynh Minh Huy (2480) – Kislik,E (2310), FSGM June, Budapest HUN, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 Nbd7 7.0-0 e5 8.d3 c6 9.Nbd2 Re8)

11.Rfe1 Nh5 12.Bf1 f5 13.Nb3 Nf8 14.e4 g5 15.c5 g4 16.cd6 Qd6 17.Ng5 h6 18.Qc4 Ne6 19.Ne6 Be6 20.Qc5 Rad8 21.Qd6 Rd6 22.Nc5 Bc8 23.ef5 Bf5 24.Nb7 Rd5 25.Nc5 Rb8 26.Na6 Rb6 27.d4 ed4 28.Bc4 Kh7 29.Bd5 cd5 30.Nc5 Rb4 31.Ba3 Rc4 32.Ne6 Bf6 33.Rad1 Bc2 34.Rd2 d3 35.Re3 Bc3 36.Rdd3 Bd3 37.Rd3 Bb4 38.g3 Ba3 39.Ra3 Re4 40.Ra7 Kg6 41.Nc5 Re1 ½–½. Doda – Smejkal, Polanica Zdroj 1970.

11.h3 b6=.

7.d3 Nfd7

8.Qb3 a5 9.a3 Nc6 10.Nc3 Nb6 11.Nd5 ab4 12.ab4 Ra1 13.Ba1 Nd5 14.cd5 Ne7 15.b5 c6 16.bc6 Qa5 17.Bc3 Qd5 18.Qd5 Nd5 19.cb7 Bb7 20.Bb2 Rc8 21.Kd2 Nb4 ½–½. Marchio,Enrico (2280) – Zude,Erik (2360), Hessen–ch Bad Wildungen, 1998. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nfd7)

8.Qb3 Re8 9.Nc3 c6 10.h4 a5 11.a3 Nf6 12.Ng5 ab4 13.ab4 Ra1 14.Ba1 d5 15.c5 h6 16.Nf3 d4 17.Ne4 de3 18.Nf6 Bf6 19.fe3 e4 20.Bf6 Qf6 21.Nd4 ed3 22.Qd3 Na6 23.Qc3 Nc7 24.Bf3 Bf5 25.0-0 Qh4 26.Nf5 gf5 27.Qd3 Qg5 28.Qd7 Qe3 29.Kh1 Qe7 30.Qf5 Ne6 31.Qh3 Qg5 32.g3 Re7 33.Bh5 Ng7 34.Qc8 Kh7 35.Bg4 Nh5 36.Qf5 Qf5 37.Bf5 Kg7 38.Kg2 Nf6 39.Rb1 Nd5 40.Kf3 Kf6 41.Bc8 Rc7 42.Bh3 Ke5 43.b5 Kd4 44.bc6 bc6 45.Rc1 Ra7 46.Bg2 Ra5 47.Rh1 Rc5 48.Rh6 Rc3 49.Kf2 Rc2 50.Kg1 Ke5 51.Rh5 Kd6 52.Rh6 Ke5 53.Rh5 Kd6 54.Rh6 Ke7 55.Rc6 Rc6–+ 56.Bd5 Rc2 57.Ba8 Kd6 58.Bf3 Ke5 59.Bh5 f6 60.Bf3 Kd4 61.Ba8 Rb2 62.Bc6 Ke3 63.Ba8 Rd2 64.Bc6 Rb2 65.Ba8 Rb8 66.Bd5 Rd8 67.Bc6 Rg8 68.Kg2 f5 69.Bd5 Rg7 70.Be6 f4 0–1. Goumas,Georgios (2315) – Georgakopoulos,Nikolaos (2190), Nikaia op, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nfd7)

8.Nc3 f5 9.d4 (9.0-0 a5 10.a3 ab4 11.ab4 Ra1 12.Qa1 Nf6+=) 9...e4 10.Nd2 c5 11.a3 (11.bc5!? dc5 12.d5+=) 11...cd4= 12.ed4 Nf6 (12...Nc6 13.Nb3=) 13.d5 Nbd7 14.0-0 Ne5 15.Qb3 Bh6 16.f4 ef3 17.Nf3 Neg4 18.Nd1 Ne4 19.Bd4 Qe7 20.Ra2 (20.Bd3 Bg7 21.Bg7 Qg7=) 20...Bd7 (20...a5 21.h3 Ne5 22.Be5 de5 23.c5=+) 21.Bd3= Ng5 (21...a5 22.Re1 ab4 23.ab4+=) 22.Re2+= Nf3 23.Rf3 Ne5 24.Rf1 (24.Be5 de5 25.c5 Qg7+=) 24...Qh4= Black prepares the advance f4 25.Bf2 (25.Be5 de5 26.c5 Qd4 27.Nf2 e4 28.d6 Kg7=) 25...Qh5 (25...Qg4-/+) 26.h3? (26.c5 f4 (worse 26...Nd3 27.Qd3 f4 28.Re7=) 27.Re5 Qe5= (worse 27...de5 28.c6 Be8 29.cb7+=)) 26...Rae8 (26...f4 27.Re5 Qe5 28.Re1-+) 27.Ree1? (better 27.Ba7 f4 28.Ref2-/+) 27...f4-+ 28.Bd4 Bg7 (28...Bh3 29.Bg6 (29.gh3 f3 30.Re5 Re5-+) 29...hg6 30.Be5-+) 29.Be5 (29.Be4 b5 30.Be5 Be5-+ (30...de5? 31.c5+-)) 29...Be5 (worse 29...de5 30.Be4+=) 30.Be2?? (better 30.Be4-+) 30...Bd4 31.Kh1 (31.Kh2 Re2 32.Re2 Qe2-+) 31…Re2 (31...Re2 32.Re2 Qe2-+) 0-1. Del Cuadro,N (2060) - Benedetti,J (2280), Norberto La Porta Cup, 2019. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

8.Qc2 f5

9.0-0 a5 10.b5 c5 11.bc6 Nc6 12.Nc3 g5 13.Rfd1 g4 14.Nd2 Nc5 Black intends a4 15.Nd5 Be6 16.Rac1 Rf7 17.Nb3 a4 18.Nc5 dc5 19.Ba3 Bf8 20.Rb1 f4 21.Nc3 fe3 22.fe3 Qg5 23.Qd2 Bh6 24.Bc5 Nd4 25.ed4 Qd2 26.Rd2 Bd2 27.d5 Bf5 28.Ne4 Be4 29.de4 h5 30.Rd1 Rc8 31.Bb6 Bb4 32.d6 (better is 32.h3=) 32...Rd7-/+ 33.Bc7 Bc5 (33...Rdc7?! 34.dc7 Bc5 35.Kh1 Rc7 36.Rd5+=) 34.Kh1 Rf8 (34...Rdc7?! 35.dc7 Rc7 36.Rd5+=) 35.a3 Rf2 (35...Ba3?! 36.c5 Rc8 37.Bb5 Rcc7 38.Ra1-/+) 36.Rd2?? (36.Bd3 Kf7–+ (36...Ba3?! 37.c5 Rb2 38.Bc4 Kf8 39.Rf1 Ke8 40.Bb6-/+)) 36...Kg7 (better is 36...Rdf7 37.h3 g3–+ (37...Ba3?! 38.Bb6 Bd6 39.Bf2 Rf2 40.hg4–+)) 37.g3 Kf6 38.Rc2 Kg5 39.Rd2 b6 40.Ra2? h4 41.gh4 Kh4 42.Rd2 g3 43.hg3 Kh3 (43...Kh3 44.Bg4 Kg4 45.Rf2 Bf2–+) 0–1. Sharif,Mershad – Shirazi,Kamran G, IRI–ch Iran, 1974. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

9.Nbd2 Nb6 10.h4+=.

9.Nbd2 g5 10.Nb3 (10.h4 g4 11.Ng5 Re8=) 10...c6 (10...g4 11.Nfd2+=) 11.d4 e4 12.Nfd2 d5 (12...Na6 13.Bc3+=) 13.0-0 Nf6 14.cd5 (14.b5!?+/–) 14...Nd5+= 15.a3 Nd7 16.b5 cb5 17.Bb5 N7f6 18.a4 Rf7 19.Rac1 Bf8 20.a5 h5 (20...Bd7 21.Bd7 Rd7 22.Nc5 Bc5 23.dc5+=) 21.Nc4 a6 (21...Rc7 22.Qe2+=) 22.Ba4+/– f4 23.Nb6 (23.Ne5!? Rc7 24.Nc5+/–) 23...Nb6+= 24.ab6 f3 25.gf3 Bd7 26.Bd7 (26.Nd2!? Rc8 27.Nc4+=) 26...Qd7= 27.Qe2 ef3 28.Qf3 Ng4 29.Qe2 Bd6 30.Nc5 Qf5 31.f4? (31.h3 Nh2 A) 32.Qh5?? Nf3 (32...Nf1?! 33.Rf1 Raf8 34.Qg4=) 33.Kh1 Rh7–+; B) 32.f4 Nf1 33.Qf1–+) 31...gf4-/+ 32.e4 (32.Nb7 Rb7 33.Qf3 Rab8 34.ef4 Rb6–+) 32...Qg6 33.Kh1 (33.Rf3 Bc5 34.dc5 Ne3 35.Kh1 Qe4–+) 33...f3 34.Rf3?? (better is 34.Qc2 Bc5 35.dc5–+) 34...Rf3–+ 35.Qf3 (35.e5 Raf8 36.Ne4–+) 35...Rf8 36.Qb3 Kh7 37.Qd1 (37.Qg3 Nf2 38.Kg2 Bg3 39.Kf1 Ne4 40.Ke2 Rf2 41.Ke3 Bf4 42.Kd3 Rf3 43.Kc4 Nd2 44.Kb4 Qb6 45.Ka4 Qb5#) 0–1. Vigoa Apecheche,Yan (2265) – De la Paz Perdomo,F (2465), LVI Abierto Mexicano, Monterrey MEX, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

8.Nc3 Nc6

9.Qb3 h6 10.0-0 Kh7 11.Nd5 Ne7 12.Rac1 c6 13.Nc3 f5 14.d4 e4 15.Nd2 Ng8 16.Rce1 Re8 17.Bd1 Nb6 18.d5 Nf6 19.f3 cd5 20.cd5 ef3 21.Bf3 Nbd7 22.Nc4 Ne5 23.Ne5 de5 24.e4 f4 25.Nb1 Bf8 26.Bc3 Bd7 27.Qb2 Bd6 28.Nd2 Rc8 29.a3 Bb5 30.Be2 Be2 31.Re2 Ng4 32.Nf3 Qc7 33.Rc1 Ne3 34.Kh1 (better is 34.Ree1!? Nc4 35.Qa1=) 34...Qc4-/+ 35.Ree1 Qe4 36.Bd2 Nc4 (better is 36...Rc1 37.Qc1 Qd5 38.Be3 fe3 39.Qe3 a5 40.ba5 Qa5-/+) 37.Re4+= Now all is on e5 37...Nb2 38.Rce1?? (38.Rc8 Rc8 39.Ne5 Be5 40.Re5 g5 41.Re7 Kg6+=) 38...Rc4 (38...Nd3!? 39.R1e2–+) 39.Rc4 (39.Bf4 b5 40.Bg3= (40.Ne5? Be5 41.Rc4 Nc4–+)) 39...Nc4+= 40.Bf4 Na3 41.Be5 Bb4 42.Rc1 Nb5 43.h4 Kg8 44.g4 g5 (44...Rd8!? 45.Rd1 Bd6-/+) 45.hg5+= hg5 46.Kg2 Bd2 (46...Rd8!?+=) 47.Rh1+= Bf4 48.Rh8 Kf7 49.Rh7 Kg6 50.Rb7 Be5 51.Ne5 Re5 52.Rb5 Re4 53.Kf3 Rf4 54.Kg3 Ra4 55.d6 Ra3 56.Kf2 Rd3 57.Ra5 ½–½. Benko,Francisco – Farah,Rodolfo, Buenos Aires–ch, 1965. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

9.b5 Ne7 10.0-0 f5 (10...Re8!?=) 11.a4 f4 12.e4 (12.ef4 Rf4 13.Ne4 Nf6+/–) 12...Nc5= 13.d4 ed4 14.Nd4 g5 (14...Bd7 15.Ra3=) 15.Re1 Ng6 16.Bf1 (16.Nd5 Ne5+=) 16...Ne5= Black intends g4 17.Nb3 (17.a5 Bg4 18.f3 Ned3 19.Bd3 Bd4 20.Kh1 Be6+= (20...Nd3?? 21.Qd3 Be5 22.fg4+–)) 17...Nb3 18.Qb3 Be6 19.Rad1 g4 20.Nd5 b6 (20...c6 21.Nb4+=) 21.Bd4 Rf7 22.Nb4 (22.Qa3 Qg5+=) 22...Qg5+= 23.Nc6 (23.Nd5 Nf3 24.gf3 Bd4–+) 23...h5 (23...Nc6!? 24.bc6 Bd4 25.Rd4 f3-/+) 24.Qc3+= White prepares c5 24...h4 25.Be5 de5 26.c5 g3 27.hg3? (better is 27.fg3 hg3 28.h3+=) 27...hg3–+ 28.fg3?? (better is 28.Rd3 Bf8 29.Qe5–+) 28...Bf8 29.cb6 (29.Be2 Bc5 (worse is 29...fg3 30.Bf3 Bc5 31.Kf1 Rf3 32.gf3–+) 30.Kf1 Qg3 31.Qg3 fg3 32.Bf3 Bc4 33.Re2 Bf2–+) 29...ab6 30.Qe5 (30.Ne5 Bc5 31.Qc5 bc5 32.Nf7 Kf7 33.gf4 Qf4 34.Re2–+) 30...Bc5 0–1. Bordovsky,Vladimir (2340) – Lornye,Pylyp (2210), 3rd Maksym Yusupov Mem rapid, 2015.

7.d3 e4

8.Nfd2 ed3 9.Bd3 Nc6 10.a3 a5 11.Qb3 Ne5 12.Be2 ab4 13.ab4 Ra1 14.Ba1 Be6 15.Na3 c6 16.Qc2 Qb6 17.Qa4 Bg4 18.c5 Qd8 19.f3 Be6 20.Bd4 Nd5 21.cd6 Nd3 (better is 21...f5+=) 22.Bd3+/– Bd4 23.b5?? (23.ed4 Qh4 24.g3 Qd4 25.Be2=) 23...Be3-/+ 24.Ne4 f5 25.Nf2 Bf2 26.Kf2 Qb6 27.Kf1 Qe3 28.Be2 (28.Qd1 Nf4 29.Nc2 Qd3 30.Qd3 Nd3–+) 28...Qe2! 29.Ke2 Nc3 (29...Nc3 30.Ke3 Na4–+) 0–1. Bukhman,Eduard (2420) – Filipek,Jakub (2245), Polanica Zdroj op Poland, 1996. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 e4)

8.Nd4 d5 9.cd5 Nd5 10.a3 a5 (10...Bf5 11.de4 Be4 12.0-0=) 11.b5 (11.de4 Nf6+–) 11...c5 (11...ed3!? 12.Qd3 c5 13.bc6 bc6=) 12.bc6+= bc6 (12...Qb6 13.Qd2 ed3 14.Bd3 Nc6 15.Nb5=+) 13.de4+– Nb6 14.Qc2 Bb7 15.0-0 Qc7 (15...c5 16.Qc5 Na4 17.Qb5+–) 16.Nd2+– Na6 17.Rac1 Rac8 18.N2b3 Rfe8 (better 18...a4 19.Na5 Rfe8+–) 19.Na5 c5 (19...Be5 20.f4 (20.Nac6?! Bh2 21.Kh1 Nb8+–) 20...Bg7 21.Ndc6+– (21.Nac6?! Nb8 22.Bb5 Bc6 23.Nc6 Bb2 24.Qb2 Nc6 25.Bc6 Re7+–)) 20.Nb7 (better 20.Nb5 Qe7 21.Nb7 Bb2 22.Qb2 Qb7 23.Nd6+–) 20...Qb7 21.Nf3 Bb2 22.Qb2 Re4 23.Rfd1 Nb8 (23...Rb8 24.Rb1 Qa7 25.Ba6 Qa6 26.Rd6+–) 24.Bd3 (better 24.Rc5! N8d7 25.Rd7 Qd7 26.Qb6+–) 24...Re7 25.Qb1 Qc6 26.Bb5 Qc7 27.h3 N8d7 28.Nd4! Rce8 (28...cd4 29.Qb4 Double attack (29.Rc7 Pinning; 29.Rc7 Deflection; 29.Qb4 Decoy)) 29.Nc6 (29.a4!? Qb7 30.Nb3 Rc8+–) 29...Re6 30.Nd4 Rd6?? (30...cd4 31.Rc7 Pinning (31.Rc7 Deflection; 31.Rc7 Clearance)) 31.Bd7 (31.Qc2 Qb8 32.Nc6 Rd1 33.Rd1 Qc7+–) 31...Nd7 32.Nb5 Rd1 33.Rd1 Qc6 34.a4 Ra8 0–1. GuestTLBT – GuestHKYDgncg, freechess.org, 2017.

8.de4 a5

9.b5+=.

9.e5 Ng4 10.0-0=.

8.de4 Ne4

9.Qc1 a5 10.b5 Nd7 11.Nbd2 Ndc5 12.Ne4 Ne4 13.0-0 Re8 14.Rd1 Bd7 15.Bg7 Kg7 16.Qb2 Qf6 17.Qf6 Kf6 18.Rac1 b6 19.Nd4 Rac8 20.Bf3 Nc5 21.Nb3 Nb3 22.ab3 Bf5 23.Rd4 Re5 24.Bc6 Rd8 25.e4 Bd7 26.Bd5 Ree8 27.f4 Kg7 28.Re1 f6 29.Kf2 Be6 30.Kf3 Re7 31.g4 g5 32.f5 Bd5 33.cd5 h6 (33...Rh8!?=) 34.Rc4 Rdd7 35.b4 ab4 36.Rb4 Re8 37.Ra1 Rf7 38.Rc4 Ree7 39.Rc6 Rd7 40.Ra7 Rde7 41.Rb7 Rd7 42.Rc4 Rde7 43.Ra4 Rf8 (43...Re5!? 44.Raa7 Ree7 45.Rb8+-) 44.Raa7 Rff7 45.Rb8 h5 46.gh5 Kh6 47.Raa8 Rh7 48.Rf8 Ref7 49.Rf7 Rf7 50.Rg8 Kh7 (50...Re7 51.Rg6 Kh5 52.Rf6+-) 51.Rg6 Rf8 52.Kg4 Rf7 53.h4 gh4 54.Kh4 Rf8 55.h6 Rf7 56.Kh5 Kh8 57.Rg1 Kh7 58.Ra1 Re7 59.Ra7 Re4 (59...Rf7+-) 60.Rc7 Kg8 61.Kg6 Rg4 62.Kf6 Rb4 63.Rb7 Rh4 64.Ke6 1-0. Philippe,Guillaume (2340) - Micottis,Dorian (2225), 5th l'EFE Metz IM, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 e4)

9.Qc1 Nd7 (9...Bb2 10.Qb2 a5 11.b5=+) 10.Bg7= Kg7 11.Nbd2 Nd2 12.Qd2 a5 13.b5 (13.ba5 Nc5=) 13...b6 14.Nd4 Bb7 15.Bf3 Bf3 16.Nf3 f5 (16...Nc5 17.0-0=) 17.Nd4 Qf6 18.0-0 Rae8 19.Ne2 Qe5 20.Nf4 Nf6 21.Rac1 Rf7 (21...Re7 22.Rfe1=) 22.Rfe1 h6 (22...Ne4 23.Qc2=) 23.f3+= Kh7 24.Nd3 Qe7 25.Qc2 Nd7 26.Nf4 Qe5 27.Nd3 Qg7 (27...Qe7 28.Rcd1+=) 28.Nf4 Re5 (28...Qe5 29.Nd5 Nf6 30.Qd3+=) 29.Rcd1+= Nf6 30.h3 h5 31.h4 Rfe7 32.Qd2 Re8 33.Nh3 (33.Qc3 Qe7 34.Kf2 Nd7+=) 33...Kg8 (33...Qe7 34.Ng5 Kg7 35.Kf2=+) 34.Qf2 (34.Rc1 Nd7+=) 34...Qe7 (34...d5 35.Qc2 Qe7 36.cd5 Re3 37.Re3 Qe3 38.Qf2+=) 35.Rd3 Kg7 (35...d5 36.Nf4 Qf7 37.cd5 Nd5 38.Nd5 Rd5 39.Rd5 Qd5 40.Qg3+=) 36.Nf4 Qf7 37.Rc3 Rc5 38.Rec1 Rce5 39.Rd1 Qe7 40.Rdd3 Qf7 41.Qg3 Rc5 42.Kh2 Rce5 43.Qf2 Qe7 44.Nd5 Qf7 45.Rd4 (45.Qb2 Rc8+=) 45...Kh7 (45...Nd5 46.cd5 Kf8 47.Rcd3+=) 46.Qd2+= Kg7 47.Rdd3 Kh7 48.Qc1 Kg7 49.Rd4 Kg8 50.Nf4 Kg7 51.Kg1 Kh7 52.Kf2 Kg7 53.Nd5 Kg8 54.Qd2 Kg7 55.Nf4 Kh7 56.Nd5 Kg7 57.Nf4 Kh7 58.Nd5 ½–½. Kuzubov,Yuriy (2645) – Kokarev,Dmitry (2605), Spanish Championship Division Honor, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 e4 8.de4 Ne4)

9.Bg7 Kg7

10.Nbd2 Nc3 11.Qb3 Ne2 12.Ke2 a5 (12...Qf6 13.Rhb1=) 13.a3 (13.Qc3 Kg8=) 13...Re8 (13...Qf6 14.Ne4 Qe6 15.Nc3=) 14.Qc3 Qf6 (14...f6 15.Rhd1=) 15.Qf6 Kf6 16.Nd4 (16.b5 g5=) 16...Nc6 (16...Na6 17.f3=) 17.Nb5 (17.Nc6 bc6 18.ba5 Ra5+=) 17...Re7 (17...ab4? 18.Nc7 Bf5 19.Na8 Ra8 20.ab4 Ra1 21.Ra1 Nb4 22.Ra7+–) 18.Nc3 Kg7 (18...Be6 19.Nd5 Bd5 20.cd5+=) 19.Nd5+– Rd7 20.Ne4 (20.b5 Ne7+–) 20...ab4 (20...Ne7 21.Rhc1+=) 21.ab4+– Ra1 22.Ra1 b6 (22...Ne5!?+–) 23.Ra8+– Bb7 24.Re8 (24.Nef6 Ba8 25.Nd7 Nb4 26.Nb4 Bg2+–) 24...f5 (24...Ne5 25.Rb8 Bd5 26.cd5+–) 25.Nef6 (25.Ng5!? Kh6 26.Ne6+–) 25...Rf7+= 26.Rg8 (26.b5 Na5 27.Rg8 Kh6+=) 26...Kh6 27.Ne8 (27.b5!? Ne5 28.Rb8 Bd5 29.Nd5 Nc4 30.Rc8+=) 27...Ne7= 28.Ne7 Re7 29.Nf6 (better 29.g3=+) 29...b5?? (better 29...Bg2 30.Rc8 Kg7=+) 30.Rb8+– (30.cb5?! Rf7 31.Rb8 Bg2=) 30...Kg7 31.Rb7 (31.Nd5 Bd5 32.cd5 Kf6+–) 31...Kf6 32.Rb5 (32.cb5 f4+–) 32...Re4 (32...h5 33.Rb8+–) 33.Kd3 Ke7 (33...g5 34.f3 Re6 35.e4 fe4 36.fe4+–) 34.f3 (34.Rb7 Kd8+–) 34...Re6 (34...Rh4 35.h3+–) 35.Rb8 Kd7 36.h4 Re7 37.Rg8 (37.Ra8 Ke6+–) 37...Ke6+– 38.Kd4 Kf7 (38...Kd7 39.b5+–) 39.Rh8 (39.Rd8 Ke6+–) 39...Ke6 40.b5 Kf6 (40...Kd7 41.Ra8+–) 41.Rb8 Ke6 42.Rb7 (42.c5 dc5 43.Kc5 Kd7+–) 42...h5 (42...h6 43.c5 dc5 44.Kc5+–) 43.Kd3 (43.c5 dc5 44.Kc5 Kf6+–) 43...Kf7 44.b6 (44.Ra7 Ke6+–) 44...cb6 45.Rb6 Re6 46.Rb7 (46.g3 Kf6+–) 46...Kf6 47.Rd7 g5 48.g3 (48.hg5 Kg5 49.g3 Rg6+–) 48...gh4 (48...g4 49.fg4 hg4 50.Rd8+–) 49.gh4+– Kg6 50.Rd8 Kf7 (50...Kg7 51.Kd4+–) 51.Rh8 Kg6 52.Rg8 (52.Kd4 Re7+–) 52...Kh6 53.Rg5 (53.Kd4 Re7+–) 53...Re5 (53...Rf6 54.Kd4+–) 54.Kd4 1–0. Cruz,Filemon (2410) – Beltran Rueda,Santiago (2405), TCh–CAT, 2014. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.c4 e5 7.d3 e4 8.de4 Ne4 9.Bg7 Kg7)

10.Nbd2 Nc3= 11.Qc2 Ne2 12.Ke2 Nd7 (12...a5 13.b5=) 13.Ne4 (13.Rhd1!?=) 13...Re8 14.Qc3 Kg8 15.Rad1?? (better 15.Ng3=+) 15...Re4–+ 0–1. GuestKHNH – GuestQVLP, freechess.org, 2017.

10.Qd4 Nf6 11.0-0 Kg8 (11...Re8 12.Rd1+=) 12.Qf4 Nc6 13.b5 Na5 (13...Nh5 14.Qh6 Ne7 15.e4+=) 14.Nc3+/– Kg7 (14...Bf5 15.Nd5+/–) 15.Nd2 (15.Rad1 Nd7 16.Nd5+/–) 15...c6 (better is 15...Be6!?+/–) 16.Nde4+– Bf5 (16...Ne4 17.Ne4 cb5 18.cb5 d5+–) 17.Nd6 Rb8 (17...Be6 18.Rfd1 Qe7 19.bc6 bc6 20.Qe5+–) 18.Rad1 (better is 18.Nf5 gf5 19.Rfd1+–) 18...Qb6 (18...Bd7+–) 19.Nf5 gf5 20.Na4 Nh5 (20...Nd5 21.Qg3 (21.Nb6?! Nf4 22.ef4 ab6+–) 21...Kh8 22.Nb6 Nb6 23.Qe5 f6 24.Qc3 Nac4 25.Bc4 Nc4 26.Qc4 cb5 27.Qc7+–) 21.Bh5 (21.Nb6?! Nf4 22.ef4 ab6+–) 21...Qd8 22.Rd8 Rfd8 23.Qg5 Kf8 24.Qf6 Rd7 25.Nc5 Re7 26.Qh8 1–0. pierre – adamh1towins, internet, 2006.

10.Qd4 Qf6

11.Nbd2 Nc6= 12.Ne4 (12.Qf6 Nf6 (12...Kf6?? 13.Ne4 Kg7 14.a3+–) 13.b5 Ne7+=) 12...Nd4+= 13.Nf6 Nf3 14.Bf3 Kf6 15.Ke2 (15.c5 dc5 16.bc5 c6+=) 15...Be6 16.Rhc1 Rad8 (16...Rab8 17.c5+=) 17.a4 (17.b5 Rb8+=) 17...c6 18.a5 d5 (18...a6 19.b5+=) 19.cd5+/– cd5 20.Rc7 Rb8 21.Rac1 (21.b5 Ke5+/–) 21...a6 (21...Ke5 22.b5+/–) 22.b5 ab5 23.Rb1 b6 24.a6 Ra8 25.a7 Rfc8 26.Rbc1 Rc7 27.Rc7 Ke5 28.Rb7 b4 29.Kd2 Kd6 30.e4+/– f5 31.ed5 Bd5 32.Bd5 Kd5 33.Rh7 Kc4 34.Kc2 b3 35.Kb2 Kb4 36.Rb7 b5 37.Re7 Rd8 38.Rc7 g5 39.f4 g4 40.h4+– gh3 41.gh3 Re8 42.h4 Re2 43.Kc1?? b2–+ 44.Kd1 Rh2 45.a8Q b1Q 46.Rc1 Qd3 (47.Ke1 Qe2) 0–1. Vescovi,Giovanni – Guimaraes de Souza,Mauro, BRA open Bebedouro, 1992.

11.Nbd2 Nd2 12.Qf6 (worse 12.Nd2 Qd4 13.ed4 Nc6=+; 12.Qd2?? Qa1 13.Bd1 a5-+) 12...Kf6 13.Kd2 c5 (13...Nc6 14.a3=) 14.bc5 dc5 15.Kc3 Nc6 16.Rhd1 Be6 17.Nd2 b6 18.Bf3 Rac8 19.Ne4 Ke7 20.Nd6 Rcd8 21.Nb5 Ne5 The isolani on c4 becomes a target 22.Be2 Rd1 23.Rd1 a6 24.Nc7 b5 (24...Rc8!? 25.Nd5 Bd5 26.cd5 b5+=) 25.cb5+/- ab5 26.Nd5 Bd5 27.Rd5 Nd7 28.Bb5 Nf6 29.Rd3 (worse 29.Rc5 Ne4 30.Kd4 Nc5 31.Kc5 Rd8=) 29...Ne4 30.Kc2 (30.Kc4 Rc8 31.a4 Nf2 32.Rd7 Kf6+=) 30...Nf2= 31.Rd7 Ke6 32.Ra7 Ne4 (better 32...Kd5!?=) 33.Bc4+/- Kf6 34.Rd7 (34.Rc7!?+/-) 34...Ng5+= 35.Bd5 Ke5 36.a4 Rb8 (36...f5!?+/-) 37.a5+- Rb5 38.a6 Ra5 39.a7 Ra7 40.Ra7 Kd5 41.h4 Ne4 42.Rf7 Nd6 43.Rh7 Nf5 44.Kd2 c4 45.h5 c3 (45...gh5 46.Rh5 Ke4 47.Rf5 Kf5+-) 46.Kc3 Ne3 (46...gh5 47.Rh5 Ke6 48.Rf5 Kf5 49.Kd4+-) 47.h6 (47.h6 Nf5 48.Rd7 Ke6 49.h7 Kd7 50.h8Q+-) 1-0. Hasangatin,R (2490) - Pogorelskikh,S (2200), 40th Nezhmetdinov Mem, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 e5 6.d3 0-0 7.Be2 e4)

11.Bd3 Nc6

12.Qf6 Kf6? 13.Be4 Nb4 14.Nc3 +–.

12.Qf6 Nf6 13.a3 a5 14.b5 Ne5 15.Ne5 de5 16.Nc3 Be6 17.Be2 Rad8 18.Rc1 Rd6 (18...h6 19.Bf3=) 19.c5 Rdd8 20.Bf3 c6 (20...b6 21.Be2=) 21.0-0 (21.bc6 bc6 22.0-0 Nd7=) 21...Bf5 (21...cb5 22.Nb5 e4 23.Bd1=) 22.Rfe1 (22.bc6 bc6 23.Rfd1 Rd1 24.Rd1 e4=) 22...Rd2 (22...e4 23.Be2=) 23.bc6 bc6 24.h3 (24.Red1 Rd1 25.Rd1 e4=) 24...Bd3 25.Red1 Rd1 26.Bd1 (26.Rd1 e4 27.Rd2 Rb8=) 26...Nd7 27.Ba4 (27.Bf3 Rc8=) 27...Nc5 28.Bc6 Rc8 29.Bd5 Na4 30.Ne2 (30.Na2 Rc1 31.Nc1 Bb5=) 30...Rc1 (30...Rd8 31.Bc6 Nb2 32.Nc3=) 31.Nc1 Bb5 32.Na2 h5 (32...f5 33.f3=) 33.h4 (33.g3 g5=) 33...f5 34.f3 Kf6 (34...Nb6 35.Nc3=) 35.Bb3 (35.Kf2 g5=) 35...Ke7 (35...Nb2 36.Bd5=+) 36.Kf2 (36.Ba4 Ba4 37.Nc3 Bc2=) 36...Nb2=+ 37.Nc3 Bc4 38.Bc2 Be6 (38...Kd6 39.g3=) 39.Nb1 (39.g3 Kd6=) 39...Nc4 (39...Kf6 40.Nd2=) 40.g3 (40.Bd3 Kd6=) 40...Kd6 41.g4 Kc5 42.Ke2 (42.g5 Nb6=) 42...Bc8 (42...fg4 43.Bg6 g3 44.Nc3-/+) 43.Kf2 Bd7 44.gh5 (44.g5 Bc6=+) 44...gh5 45.Ke2 (45.Bb3 Na3 46.Na3 Kb4=) 45...Be6 (45...Nb2 46.Nc3=+) 46.Kf2 f4 47.ef4 ef4 48.Bg6 Kd4 49.Ke1 (49.Ke2 Ne3 50.Nd2 Ng2=+) 49...Ne3 50.Bh5 Ba2 51.Nd2 Bd5 (51...Ng2 52.Ke2=+) 52.Kf2 Nf5 0–1. aperturaf – pcmvr, net–chess.com, 2017.

12.Qf6 Nf6 13.a3 a5 14.b5 Ne5 15.Ne5 de5 16.c5 Rd8 17.Bc4 Ne4=+.

12.Qf6 Nf6 13.a3 a5 14.b5 Ne5 15.Ne5 de5 16.Ke2 Be6 (16...e4 17.Bc2=) 17.Nc3 Rfd8 18.Rhc1 (18.Rhd1 h6+=) 18...h5 (18...Rd7 19.Rd1=) 19.Ne4 (19.Rd1 Bg4 20.f3 Be6+=) 19...Rd3 20.Nf6 Rb3 21.Nd5 c6 22.bc6 (22.Nc7 Rb2 23.Ke1 Rd8=) 22...bc6=+ 23.Nc7 Bg4 24.Kf1 (24.f3 Rb2 25.Kd3 Bf5 26.e4 Rd8 27.Kc3 Rbd2=+) 24...Rc8 25.Na6 c5 26.Rab1 a4 27.Ke1 (27.h3 Bf5 28.Rb3 ab3–+) 27...Bf5-/+ (28.Ra1 Be4-/+) 0–1. Kharitonov – Chiburdanidze, 1979.

12.Qf6 Nf6 13.a3 Be6 14.Nc3 a5 15.b5 Ne5 16.Ne5 de5 17.f3 Rad8 18.0-0-0 Nd7 19.Na4 b6 20.Rd2 Nf6 21.Kc2 Rd7 22.Rhd1 e4 23.Be2 Rd2 24.Kd2 ef3 25.gf3 Nd7 26.Nc3 ½–½. Van Rooijen,Peter (1655) – Moman,Aaron (1930), RC–2009–0-00023, 2009.

11.Qf6 Nf6

12.0-0 a5+=.

12.Nc3 a5 13.b5 b6 14.Nd4 Bb7 15.f3 (15.Bf3 Bf3 16.Nf3 Re8+=) 15...Nbd7 16.e4 Nc5 17.Kf2 Rae8 18.Rhe1 Nfd7 19.Rad1 Ne6 20.Bf1 ½–½. Yermolinsky,A (2545) – Mikhalevski,V (2545), 39th American Open, Los Angeles USA, 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 e4)

12.Nc3 a5 13.b5 Nbd7 14.Rd1 b6 15.Nd4 Bb7 16.Bf3 Bf3 17.Nf3 Nc5 18.Nd5 Nd5 19.cd5 Rae8 20.Rd4 f5 21.0-0 Re4 22.Rc1 Rc8 23.g3 Kf6 24.Rc2 Rd4 25.Nd4. marekt – Brixos, ChessWorld.net, 2013.

12.Nc3 Nc6 13.a3 a5 14.b5 Ne5 15.Nd5 Nd5 16.cd5.

12.Nc3 Nc6 13.Rb1 h6 14.0-0 Bf5 15.Rb2 g5 16.Rc1 Bg6 17.h4 g4 18.Nh2 h5 19.Nf1 Ne5 20.Rd2 Rad8 21.Ng3 Rd7 22.f4 gf3 23.gf3 Kh6 24.Nd5 Nd5 25.Rd5 Nc6 26.a3 Ne7 27.Rd4 Rg8 28.Kf2 Nc6 29.Rd2 Ne7 30.c5 ½–½. Cottarelli,Franco – Dellabella,Carlo, ITA corr Italy, 1981. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 e4 8.de4 Ne4 9.Bg7 Kg7 10.Qd4 Qf6 11.Qf6 Nf6)

12.Nc3 Be6 13.0-0 Nc6 14.a3 a6 15.Rfd1 Rad8 16.Rac1 Ne5 17.Nd2 Bg4 (17...Rfe8 18.e4=) 18.f3 Be6 19.h3 a5 20.f4 Nc6 21.b5 Ne7 22.Bf3 b6 23.Nde4 (23.e4 Rfe8+/-) 23...Nd7 (23...Ne4 24.Ne4 h6 25.Nf2=) 24.Ne2 (24.Nd5 Bd5 25.cd5 f5+=) 24...Bf5 25.Nf2 Nc5 26.Nd4 f6 27.Bc6 (better 27.Bd5!?+=) 27...Nc6=+ 28.Nc6 Rde8 29.Re1 Be4 30.Nd4 h5 31.Rcd1 Re7 32.Ne4 Re4 33.g4 hg4 34.hg4 Rfe8 35.Kf2 Ne6 (35...g5 36.fg5 fg5 37.Kf3=+) 36.Ne6= R8e6 37.Rd4 g5 38.fg5 ½-½. Philippe,Guillaume (2340) - Kurayan,R (2375), 5th l'EFE Metz IM, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 e4)

12.Nc3 Be6 13.Nb5 Rc8 14.Nbd4 a5 15.b5 Nbd7 16.Nd2 (16.Rd1 Nc5) 16...Bg4 (16...Nc5 17.Ne6 fe6 18.Rd1=) 17.f3 Be6 18.g4 h6 19.h4 Nc5 20.N2b3 Nfd7 (20...Nb3 21.ab3 Re8 22.g5=) 21.Nc5 Nc5 22.Kd2 a4 23.Rab1 Re8 24.h5 g5 (24...f5 25.b6 Rac8 26.gf5 gf5 27.Rhg1 Kh7 28.bc7 Rc7 29.Rb6+/-) 25.Rhd1 a3 (25...Kf6 26.b6 Rac8 27.Nb5+/- (27.Ne6?! fe6 28.Bd3 Rf8=)) 26.Bd3 Rad8 27.Rb4 (27.b6 Nd3 28.bc7 Rc8 29.Kd3 Rc7 30.Ne6 fe6) 27...b6 (27...d5 28.cd5 Nd3 29.Ne6 Re6 30.Kd3 Rd5 31.Rd4 Rb5 32.Rd7=+) 28.Rbb1 Kf6 29.Rbc1 Ra8 30.Rf1 Ra4 31.f4 (31.Ne6 Ke6 32.Bf5 Ke5 33.f4 gf4=) 31...gf4 (31...Bg4 32.fg5 Kg5 33.Rf7 Nd3 (33...Bh5 34.Rg1 Kh4 35.Rf4 Kh3 36.Rh1 Kg2 37.Rh5 Nd3 38.Kd3 Re5 39.Rg4 Kf2 40.Rh2 Kf1 41.Rf4 Kg1 42.Nf3 Kf1 43.Ne1 Kg1 44.Rg2 Kh1 45.Rf1; < 33...Kh5 34.Rh1 Kg5 35.Rg7 Kf6 36.Rg4+-) 34.Rg7 Kf6 35.Rg6 Ke7 36.Kd3 Bh5 37.Rh6 Bf7) 32.Bc2 (32.Rf4 Ke7) 32...Raa8 33.Ba4?? (better is 33.Rf4 Ke7 A) 34.Ne6?! Ne6 (34...Ke6? 35.Rcf1+-) 35.Rf5 Rad8; B) 34.Rcf1) 33…Ra4-+ (34.Rf4 Ke7 35.Ne6 Ne6-+) 0-1. Luzuriaga,Norberto Horacio (2025) - Schulz,Hans_Juergen (1785), KO-031 VCC, 2002.

12.Nd4 a5 13.b5 Nbd7 14.Nc3 Nb6 15.f3 Re8 16.e4 Be6 17.Nd5 Bd5 18.cd5 (worse is 18.ed5 Nc4 19.Rc1 Ne3 20.Rc7 Rac8 (worse is 20...Ng2 21.Kf2 Nf4 22.Rb7+=) 21.Rc8 Rc8-/+) 18...Rac8 19.Kf2 h5 20.h4 Nfd7 21.g3 a4 22.Rhd1 Ra8 23.Rac1 Nc5 24.a3 Nbd7 25.Rb1 Re7 26.Rb2 Rg8 27.Bf1 Rf8 28.Rc2 Nb6 29.Bh3 Rfe8 30.Bf1 Nbd7 31.Bh3 ½–½. Semenov,Viktor Timofeevich (2265) – Pantazi,Adrian (2130), WS/M/351 ICCF, 2011. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 e4 8.de4 Ne4 9.Bg7 Kg7 10.Qd4 Qf6 11.Qf6 Nf6)

7.d3 Be6

8.0-0 a5 9.b5 h6 10.Nc3 Nbd7 11.Nd2 d5 12.cd5 Nd5 13.Nd5 Bd5 14.f4 Re8 15.fe5 Ne5 16.d4 Nd7 17.e4 Qe7 18.Bg4 f5=.

8.0-0 Qd7 9.Ng5 Bg4 10.f3 Be6 11.Nc3 Nc6 12.a3 Ne7 13.Qc1 Bh6 14.f4 ef4 15.Nce4 Ne4 16.Ne4 Bg7 17.Bg7 Kg7 18.Nf6 Qc8? 19.Qc3+– Kh6 20.Rf4 Nf5?? 21.Raf1 Ne3 22.Rh4 Kg5 23.Nh7 Kh4 24.Qe1# 1–0. michaelbuss – carlosfandangos, ChessWorld.net, 2007.

8.Nc3 Nc6 9.a3 a6 10.0-0 Qe7 11.Ng5 Bc8 12.Bf3 Bf5 13.Nge4 Ne4 14.Nd5 Qd7 15.Be4 Be4 16.de4 f5 17.ef5 Rf5 18.Qg4 Rd8+=.

8.Nc3 h6 9.0-0 Nc6 10.a3 a6 11.Rc1 Re8 12.Nd2 d5 13.cd5 Nd5 14.Nce4 Qc8 15.Nc5 Rd8 16.Ne6 Qe6 17.Nb3 b6 18.Qc2 Rd6 19.Nd2 Nce7 20.Qb1 Rc6 21.Bd1 Rc1 22.Qc1 Qd7 23.Nf3 Qd6 24.Bb3 a5 25.b5 a4 26.Bc4 Kf8?! 27.Qa1 f6 28.Ne5 fe5 29.f4 Ke8 30.fe5 Qd8 31.e6 Bb2 32.Qb2 Nf5 33.Bd5 Qd5 34.Qf6 1–0. Kaniak – Pandit, email 4AMM–09 1997.

8.Nbd2 a5 9.b5 h6 10.0-0 a4 11.Qc2 Nbd7 12.a3 Re8 13.d4 e4 14.Ne4 Ne4 15.Qe4 Bc4 16.Qc2 Be2 17.Qe2 Nb6 18.Rfd1 Qd7=.

8.Nbd2 Nbd7 9.0-0 c6 10.a3 d5 (10...Qc7 11.d4=) 11.cd5 (11.Ne5 Re8+/–) 11...Bd5 (11...Nd5 12.Nc4=) 12.d4 (better is 12.Ne5!? Re8 13.f4+/–) 12...e4= 13.Ne5 Ne5 14.de5 Nd7 15.f4 ef3 16.Nf3 (16.Nf3 Re8 Combination; 16.Bf3 Ne5 Combination; 16.gf3 Qg5 Double attack) 16...Bf3 17.Bf3 Be5 18.Be5 Ne5 19.Be2 Qe7 20.Qc2 Rad8 21.Rad1 Rd1 22.Rd1 Rd8 23.Rd8 Qd8 24.Qc3 Qd6 25.g3 Kg7 26.Kg2 f6 27.h4 Qd5 28.Kf2 Qd6 29.Qc4?? (29.Kg2 Qe6 30.Qc5-/+) 29...b5 (better is 29...Nc4 30.Bc4 Qd2 31.Be2 Qb2–+) 30.Qc3 Qd5 31.Qc2 a6 32.a4 (32.Kg1 Nc4 33.Bc4 bc4-/+) 32...Kf8 (better is 32...Qh1!? 33.Qc5 Qh2 34.Kf1 Qg3 35.Qe7 Nf7 36.ab5 cb5–+) 33.ab5-/+ ab5 34.Qc3 Ke7 35.Qa3 Qd7 36.Qc3 Kf7 37.Qc5 Qe7 38.Qc2? Qb4–+ 0–1. Fournier,Frederic – BBC (1715), Partie amicale, 3m + 0s, 2007.

8.Ng5 Bd7 9.0-0 h6 10.Ne4 Nc6 (10...Ne4 11.de4 a5 12.b5=) 11.b5+= Ne7 12.Nbc3 (12.Nf6 Bf6 13.Nc3 a6+=) 12...Ne4 13.Ne4 f5 14.Nc3 Be6 15.Qb3 f4 16.ef4 ef4 (16...Rf4 17.Bc1 Rf8 18.Bf3=) 17.Rfe1 (17.Bf3 c6+=) 17...Nf5 18.Bg4 Qg5 19.h3 Bf7 (better is 19...Rae8!? 20.Qa4 Nd4 21.Qa7 Bg4 22.hg4 Qg4–+) 20.Ne4+/– Qh4 21.Bg7 (21.Bf5 gf5 22.Bg7 Kg7 23.Qc3 Kh7 24.Nf6 Kg6+/–) 21...Ng7 22.Qc3 h5 (better is 22...Ne8!?+/–) 23.Nf6+– Kh8 24.Bf3 1–0. pcmvr (2870) – petko (2450), net–chess.com, 2009.

8.0-0 Nc6

9.a3 h6 10.d4 ed4 11.Nd4 Nd4 12.Bd4 Qe7 13.Nd2 c5 14.Bc3 Rfc8 15.Rc1 d5 16.bc5 Qc5 17.cd5 Bd5 18.Qa4 a6=.

9.b5 Ne7 10.d4 ed4 11.Nd4 a6 12.a4 Nf5 13.Nd2 Qe7 14.Bf3 Rab8 15.Qc2 Bd7 16.Rfe1 Rfe8 17.Rad1 Ng4 18.N2b3 Qh4=.

9.Qd2 h6 10.a3 Re8 11.Nc3 a6 12.e4 Nd4 13.Nd4 ed4 14.Nd1 c5 15.f4 b5 16.f5 gf5 17.ef5 Bd7 18.Bf3 Rb8=.

8.0-0 Nbd7

9.a3 Qe7 10.Ng5 c6 11.Ne6 Qe6 12.Nd2 d5 13.Qc2 a5 14.Rfc1 ab4 15.ab4 dc4 16.dc4 c5 17.Bc3 e4 18.bc5 Nc5+=.

9.a4 a5 10.b5 Nc5 11.Nbd2 e4 (11...Re8!?=) 12.Ne4+= Nfe4 13.Bg7 (13.de4? Bb2 14.Rb1 Bg7-+) 13...Kg7 14.de4 Ne4 15.Qd4 Nf6 16.Ng5 Qd7 (better 16...h6!? 17.Ne4 b6+/-) 17.Bf3 h6 18.Ne6 Qe6 (better 18...fe6!? 19.Bb7 e5+-) 19.Bb7 Rab8 20.Bc6 Qe5 21.Qd2 Ng4 22.g3 h5 (22...Qh5 23.f3 Ne5+-) 23.h3 Nf6 24.Qa5 h4 25.g4 g5 (25...Qe7 26.Qc3 Kh7 27.a5+-) 26.Qd2 (26.Qc7!? Ne4+-) 26...Ne4 27.Qd4 Qd4 28.ed4 Nd2 29.Rac1 1-0. jhipolito (2000) - GeorgeWBush (1785), Rated Bullet game, lichess.org, 2014.

9.Nc3 a5 10.b5 h6 11.Nd2 d5 12.cd5 Nd5 13.Nd5 Bd5 14.Nc4 Qg5 15.Bf3 Bc4 16.dc4 e4 17.h4 Qh4 18.Bg7 Kg7+=.

9.Qd2 a5 10.a3 h6 11.Nc3 Qe7 12.e4 ab4 13.ab4 c6 14.d4 ed4 15.Nd4 Ne5 16.Ne6 Qe6 17.Ra8 Ra8 18.Qd4 Nfd7=.

9.Ng5 c5 10.a3 Qb6 11.Ne6 fe6 12.Nc3 cb4 13.Na4 Qc7 14.ab4 a5 15.b5 Rf7 16.Qb3 Rc8 17.Rfc1 e4 18.c5 dc5 +/–.

8.0-0 Qe7

9.Nc3 h6 10.d4 a5 11.a3 ab4 12.ab4 Ra1 13.Qa1 ed4 14.ed4 d5 15.Re1 dc4 16.Bc4 Rd8 17.Be6 fe6 18.d5 Nd5 +/–.

9.Ng5 Bf5 10.Nc3 c6 11.Qd2 d5 12.e4 Bc8 13.cd5 Qb4 14.a3 Qd6 15.f4 Ng4 16.Bg4 Bg4 17.h3 h6 18.fe5 Qe5+=.

8.Nbd2 Nc6

9.a3 a5 10.b5 Ne7 11.0-0 Qd7 12.d4 ed4 13.Nd4 c5 14.N4f3 d5 15.cd5 Ned5 16.Rc1 Rac8 17.Qa4 Rfd8 18.Nc4 Qe8+=.

9.b5 Ne7 10.0-0 a6 11.a4 h6 12.Qc2 Qd7 13.d4 ed4 14.Nd4 Bg4 15.Bg4 Qg4 16.a5 Rfe8 17.b6 Rac8 18.Rfd1 d5+=.

7.d3 Qe7

8.0-0 c6 9.Nbd2 Nbd7 10.Qb3 Ng4 11.h3 Nh6 12.Rfe1 Kh8 13.Bf1 f5 14.b5 g5 15.Nh2 Nc5 16.Qc2 Ne6 17.bc6 bc6 18.Rab1 Bd7 19.Bc3 c5 20.Rb7 Nd8 21.Rbb1 Ne6 22.Rb7 Nd8 23.Rbb1 (23.Rb2 Ne6+=) 23...Ne6= 24.Rb7 ½-½. Fargac,M (2225) - Karlik,V (2140), TCh-CZE, 2018. (=1.e3 Nf6 2.Nf3 d6 3.c4 g6 4.b4 Bg7 5.Bb2 0-0 6.Be2 e5 7.d3 Qe7)

8.0-0 Nbd7 9.Nc3 c6 (9...Nb6 10.d4=) 10.Rc1 (10.a3 Re8=) 10...Ne8 (10...a5 11.b5=) 11.b5 (11.d4 Nef6) 11...f5 (11...a6 12.d4=) 12.Nd2 (12.d4 a6) 12...Nef6 (12...Nc5 13.d4 Nd7 14.Nf3) 13.Bf3 (13.d4 c5=) 13...Nc5 14.Qc2 (14.bc6 Nd3 15.Rb1 e4 16.cb7 Bb7= (16...Qb7? 17.Nce4 Ne4 18.Bg7 Qg7 19.Ne4 fe4 20.Be4+–)) 14...e4 15.de4 (15.Be2 ed3 16.Bd3 Nd3 17.Qd3 a6=) 15...fe4=+ 16.Be2 Bf5 17.Rfd1 Rad8 (17...Nd3 18.Bd3 ed3 19.Qa4=+) 18.Nb3 Nd3 19.Nd4? (19.Bd3 ed3 20.Qd2 Ng4=) 19...Nb2?? (better is 19...Nc1 20.Qc1 Bd7–+) 20.Qb2 Bd7 21.bc6 bc6 22.Qb7 Rb8 23.Nc6 Rb7 24.Ne7 Kf7 25.Ned5 Nd5 26.Nd5 Rb2=+ 27.Nf4 Be5 28.Re1 g5-/+ 29.Nd5 Ra2 30.f4 ef3 31.gf3 Rg8=+ 32.Rb1 Bc8 33.Nb4 Ra3 34.Nd5 a5 35.Kh1 Be6 36.Rb7= Kf8 37.f4 Bd5 38.cd5 Ra1 39.Ra1 Ba1 40.Rh7 gf4 41.Ra7 Bc3 42.ef4 Bd4 43.Ra8 Kf7 44.Rg8 Kg8 45.Kg2 a4 46.Kf3 a3 47.Bc4 Kg7 48.Ke4 Bf6 49.Kf5 Kf7 50.Ba2 Be7 51.h3 Bf6 52.Bb1 Be7 53.Kg4 Bd8 54.h4+/– Kg7 55.h5 Kh6 56.Kf5 Kh5 57.Ke6 Kg4 58.f5 Kg5 59.Kd7 Bf6? 60.Ke6 Bd8= 61.Kd6 a2 62.Ba2+/– ½–½. Jeric,Aleksander – Cherrington,Philip, corr SLO–ENG, 1997.

8.0-0 Re8 9.d4=.

8.a3 Nc6 9.0-0 a6 10.Nc3 Be6 11.d4 ed4 12.ed4 d5 13.Re1 Qd7 (13...Rfe8 14.Ng5=) 14.c5 (14.Ne5 Qd8 15.Na4 Ne4 16.cd5 A) 16...Qd5? 17.Bc4 Nf2 18.Kf2+– (18.Bd5 Nd1 19.Bc6 Nb2=+); B) 16...Bd5+=) 14...Rfe8 (14...Ne4 15.Ne4 de4 16.Ne5 Ne5 17.de5=) 15.b5 (15.Ne5!? Ne5 16.de5+=) 15...ab5=+ 16.Bb5 (16.h3=+) 16...Reb8 (better 16...Bg4!? 17.Re8 Re8-/+ (17...Ne8?! 18.h3 Bf3 19.Qf3=)) 17.Ne5 Qe8 (17...Qc8!?=) 18.Qd2+– Ra7 19.a4 Kh8 (19...Nh5 20.h3+–) 20.f4 (20.Re2 Nh5+–) 20...Ng8+– 21.Nd5! Be5?? (21...Bd5 22.Bc6 Double attack (22.Bc6 Decoy)) 22.Re5+– (worse 22.de5 Rd8 23.Nc7 Rd2 24.Ne8 Rb2-/+) 22...Qd8 23.Nb4 (better 23.Nc7 Ne5 24.d5+–) 23...Ne5 24.d5 (24.fe5?! Ne7=) 24...Ne7? (better 24...Nf6 25.Qc3 Bd7 (25...Nd5 26.Qe5 Qf6 27.Qe2+–; 25...Bd5?? 26.Qe5 Bb3 27.Ra3+–) 26.Qe5 Bb5 27.Qf6 Qf6 28.Bf6 Kg8 29.ab5 Ra1 30.Ba1 Ra8+–) 25.Be5 Kg8 26.Rd1 Bg4 27.Re1 Rba8?? (27...Nf5+–) 28.Bf6 c6 29.Be7 Qd7 30.Nc6! bc6 31.Bc6 Qc8 32.Bd6 Ra4 33.Re8 (better 33.Ba4 Ra4 34.Qc3+–) 33...Qe8+= 34.Be8 Re8?? (better 34...Ra1 35.Kf2 R1a2 36.Qa2 Ra2 37.Kg3 Bf5+=) 35.Be5+– Rb8?? (35...f6 36.h3 fe5 37.hg4 Rd4+–) 36.Bb8 (36.Bb8 Ra1 37.Kf2+–) 1–0. mr5reasons1 (1755) – escalador (1735), gameknot.com, 2018.

8.Qc2 Nc6 9.b5 Nd8 (9...Nb4 10.Qa4 c5 11.a3 Nd3 12.Bd3=) 10.0-0= Re8 11.Nc3 Ne6 12.Nd5 Nd5 13.cd5 Nc5 14.d4 Bf5 15.Qc4 ed4 (15...e4 16.dc5 Bb2 17.Nd4 Ba1 18.cd6-/+) 16.Bd4 Bd4 17.Nd4 Be4 18.Rfd1 (18.Rfc1 Qg5 19.Bf3 Nd3 20.Be4 Nc1) 18...a6 19.f3 (19.Bf3 ab5 20.Qb5 Qg5=) 19...ab5 20.Nb5 Bd5 (20...Ra4 21.Qc3 Bf5 22.e4=) 21.Rd5=+ c6 22.Rd6 Qe3 23.Kh1 (23.Kf1 cb5 24.Qb5 Nb3–+) 23...cb5 24.Qb5 Re5 (24...Qe5!? 25.Rad1 Qe2 26.Qc5 Qe1 27.Re1 Re1 28.Qg1 Rg1 29.Kg1 Ra2-/+) 25.Bc4=+ Ne4! (26.fe4 Rb5 27.Bb5 Qe4–+) 0–1. Waibel,Ulrich – Connor,Steve, compuserve, 1996.

8.0-0 Nc6

9.b5 Nd8 10.Nc3 Re8 11.Nd5 Nd5 12.cd5 Bd7 13.d4 (13.Qa4 a6=) 13...e4 14.Nd2 (14.Ne1!?=) 14...Qg5=+ 15.Re1 Qd5 16.Bc4 (16.a4 c5-/+) 16...Qf5 17.Qb3 c6 18.a4 d5 19.Be2 Ne6 20.Rec1 Ng5 (20...Reb8 21.Ba3=+) 21.Ba3 h5 (21...Rac8 22.bc6 Bc6 23.Bd6=+) 22.Bd6 Nh7 (22...Rac8 23.bc6 Rc6 24.Rc6 Bc6 25.a5=) 23.a5 cb5 24.Bb5 Nf6 25.Bd7 Qd7 26.Be5 Rac8 27.Rab1 Rc6 28.Rc6 bc6 29.Qb7 Qf5 (29...Rd8 30.Qa6=) 30.Bf6 (30.Qa7 Ng4 31.Bg3 Qg5+=) 30...Bf6 31.Qa7 c5 32.Qc5 (32.dc5 d4) 32...Rc8 33.Qb4 Qe6 (33...Rc2 34.Ra1+/–) 34.Nb3 Be7 35.Nc5 Qf6 36.Qb7 Rc6 37.Rb6 Rc5? (better is 37...Rb6 38.Qb6 Qg5+–) 38.dc5 Qc3 39.Rb1 Bc5 40.Qd5 Qc2 41.Rb8 Bf8 42.g3 Qb1 (42...h4 43.Qd8 Kh7 44.Qf8 Qd1 45.Kg2 h3 46.Kh3 Qh5 47.Kg2 Qf3 48.Kf1 Qd1 49.Kg2 Qf3 50.Kg1 Qd1 51.Kg2 Qf3=) 1–0. Arkell,Keith C (2430) – Sowray,Peter J (2330), Lloyds Bank op, 1988.

9.Qd2 a5=.

8.Nbd2 Nbd7

9.0-0 a5 A) 10.b5 h6 (10...Re8 11.Re1 a4 12.a3 Qe6 13.Ng5 Qe7 14.Nge4 Ne4 15.Ne4 Qh4= 0.09; 10...a4 11.a3 Re8 12.Re1 Nb6 13.Rc1 Bd7 14.Qc2 Rac8 15.c5 dc5+= 0.31; 10...Rd8 11.Re1 a4 12.a3 Nb6 13.Rc1 Bf5 14.e4 Bc8 15.Qc2 Nbd7+= 0.34) 11.Rb1 Re8 12.e4 a4 13.a3 Nc5 14.Qc2 Nh5 15.Rfe1 Nf4= –0.13; B) 10.a3 Re8 (10...Nb6 11.b5 a4 12.Rc1 Bd7 13.Qc2 Rfe8 14.Rfe1 Rac8 15.c5 dc5+= 0.31; 10...ab4 11.ab4 Ra1 12.Qa1 Re8 13.Qa5 b6 14.Qa4 Bb7 15.Qa7 Bf3+= 0.41; 10...Rd8 11.Qc2 Nb6 12.b5 Bg4 13.c5 dc5 14.Be5 Rd5 15.Bc3 a4+= 0.34) 11.Qc2 Nb6 12.c5 Nbd5 13.b5 Bd7 14.Rab1 Bb5 15.Be5 Bd3= –0.09; C) 10.ba5 Ra5 (10...Re8 11.Nb3 Qe6 12.Rb1 Re7 13.e4 Nh5 14.g3 h6 15.d4 Nhf6+= 0.31) 11.Re1 Re8 12.a4 Qe6 13.Bc3 Ra6 14.a5 h6 15.e4 Nc5= –0.03.

9.0-0 Nb6 A) 10.a3 Bg4 (10...a5 11.b5 Rd8 12.Rc1 Bd7 13.a4 c5 14.Qc2 Bg4 15.Rfd1 h6= 0.25; 10...Bd7 11.Rb1 Rfe8 12.c5 Na4 13.Ba1 b5 14.Rc1 a5 15.cd6 cd6= 0.03; 10...Be6 11.d4 ed4 12.Bd4 c5 13.Bb2 Rac8 14.Ng5 Bf5 15.Qb3 h6= 0.03) 11.Rc1 a5 12.b5 Nbd7 13.Rb1 h6 14.h3 Be6 15.d4 e4= 0.00; B) 10.b5 Re8 (10...a6 11.c5 dc5 12.ba6 Ra6 13.Be5 Ra7 14.Qc2 Be6 15.d4 cd4= 0.03; 10...Bf5 11.a4 a5 12.e4 Bc8 13.Nb3 Nbd7 14.Bc3 b6 15.Bd2 Nc5+= 0.28; 10...Be6 11.a4 a6 12.ba6 ba6 13.d4 ed4 14.Nd4 Qe8 15.a5 Nbd7= 0.22) 11.a4 a5 12.Rc1 Nfd7 13.Ne4 f5 14.Nc3 e4 15.Nd4 Nc5= 0.00; C) 10.Bc3 Re8 (10...Be6 11.a4 Nbd7 12.a5 c5 13.b5 a6 14.b6 Rad8 15.Qc2 h6+= 0.37; 10...Bg4 11.a4 a6 12.a5 Nbd7 13.e4 Rae8 14.h3 Bf3 15.Nf3 Bh6+= 0.44; 10...Bf5 11.a4 a5 12.ba5 Nbd7 13.e4 Bg4 14.Ne1 Be2 15.Qe2 Nh5= 0.25) 11.a4 a5 12.ba5 Nbd7 13.Re1 Nc5 14.Rb1 Bd7 15.Qc1 Ra7= 0.00; D) 10.a4 a5 (10...Nbd7 11.a5 d5 12.b5 Rd8 13.d4 e4 14.Ne5 dc4 15.Ndc4 a6+= 0.44; 10...Re8 11.a5 Nbd7 12.Qc2 c6 13.Rfc1 Qe6 14.Ne4 h6 15.d4 Ne4+= 0.37; 10...h6 11.a5 Nbd7 12.Qc2 Re8 13.Rfd1 c6 14.Bc3 Qe6 15.Ne4 d5+= 0.41) 11.b5 Re8 12.Qc2 Bg4 13.Rfe1 h6 14.Rad1 Ra7 15.h3 Be6+= 0.28.

9.0-0 d5 A) 10.Qb3 c6 (10...e4 11.Ne1 dc4 12.Qc4 Nb6 13.Qc5 Qc5 14.bc5 Nbd7 15.Rc1 Rd8+= 0.37; 10...Qd6 11.a3 Rd8 12.cd5 Nd5 13.Ne4 Qe6 14.Nfg5 Qc6 15.b5 Nc5+– 3.06; 10...a5 11.cd5 Qb4 12.e4 Nh5 13.Rfc1 Nf4 14.Bf1 c5 15.dc6 bc6+– 0.97) 11.d4 e4 12.Ng5 h6 13.Nh3 dc4 14.Bc4 Nb6 15.Nf4 Nc4= –0.25; B) 10.cd5 Nd5 (10...a5 11.Qb3 Qb4 12.e4 Nh5 13.Rfc1 Nf4 14.Bf1 c5 15.dc6 bc6+– 0.97; 10...Qb4 11.Rb1 Qd6 12.Nc4 Qd5 13.Nfe5 c6 14.f4 Re8 15.Qc2 Qe6+= 0.50) 11.a3 Rd8 12.Qc2 c6 13.Rfc1 h6 14.Ne4 N7b6 15.Rab1 Bg4= 0.22; C) 10.Qc2 Rd8 (10...e4 11.Ne1 c6 12.a3 a5 13.cd5 cd5 14.b5 b6 15.Rd1 Bb7+= 0.31; 10...c6 11.a3 Rd8 12.Rfd1 e4 13.Ne1 dc4 14.Nc4 ed3 15.Rd3 c5+= 0.53; 10...Re8 11.cd5 Nd5 12.a3 c6 13.Rfc1 a5 14.b5 cb5 15.Qb3 N7b6= 0.19) 11.Rac1 c6 12.a3 a5 13.b5 e4 14.Ne1 dc4 15.Qc4 Nb6= –0.03; D) 10.a3 Rd8 (10...e4 11.Nd4 c5 12.Nb5 ed3 13.Bd3 Ne5 14.Be5 Qe5 15.Nf3 Qe7+= 0.28) 11.cd5 Nd5 12.Qc2 c6 13.Rfc1 h6 14.Ne4 N7b6 15.Rab1 Bf5= 0.25.

9.0-0 Qe8 A) 10.Nb3 c5 (10...Qe7 11.a3 Nb6 12.a4 Bd7 13.b5 a6 14.a5 Nc8 15.d4 e4+= 0.31; 10...d5 11.Qd2 Qe6 12.Rfc1 dc4 13.dc4 e4 14.Nfd4 Qe7 15.c5 Ne5+= 0.31; 10...Nb6 11.Rc1 Bg4 12.h3 Bf5 13.c5 Na4 14.Ba1 Be6 15.Ng5 dc5= 0.25) 11.a3 Qe7 12.d4 b6 13.Rb1 Re8 14.Re1 Bb7 15.bc5 bc5= 0.12; B) 10.d4 a5 (10...c5 11.a3 e4 12.Ne1 Qe7 13.f3 a5 14.Nc2 Re8 15.bc5 dc5+= 0.44; 10...e4 11.Ne1 a5 12.a3 d5 13.ba5 Qe6 14.Qc2 Re8 15.Bc3 Nb8+= 0.44; 10...Qe7 11.Qc2 ed4 12.ed4 d5 13.a3 Nb6 14.Rfe1 dc4 15.Nc4 Nbd5+= 0.31) 11.a3 e4 12.Ne1 Qe6 13.f3 ef3 14.Rf3 ab4 15.d5 Qe7= 0.19; C) 10.Rc1 Qe6 (10...a5 11.b5 Qe6 12.Ng5 Qf5 13.Nge4 Qe6 14.Bf3 Ne4 15.Be4 Nf6= 0.22) 11.Ng5 Qe7 12.Bf3 c6 13.b5 cb5 14.cb5 a6 15.Nge4 ab5= 0.09; D) 10.a3 a6 (10...a5 11.Qc2 Nb6 12.b5 Bg4 13.h3 Be6 14.Ng5 Bc8 15.d4 ed4+= 0.37; 10...Nb6 11.a4 a5 12.b5 Bf5 13.c5 dc5 14.Ne5 Qe7 15.Rc1 Rad8+= 0.28; 10...h6 11.d4 a5 12.de5 Ne5 13.Ne5 de5 14.Qc2 Qe7 15.e4 Bg4+= 0.34) 11.d4 e4 12.Ng5 h6 13.Nh3 Nb6 14.Nf4 Na4 15.Rb1 Nb2= 0.19.

9.0-0 Re8 10.Ne4 h6 (10...Ne4 11.de4 a5 12.a3=) 11.Nfd2 (11.a3 Ne4 12.de4 Nf6=) 11...Nf8 (11...a5 12.b5=) 12.Nf6 Bf6 13.Qc2 Bg7 (13...Ne6 14.Rae1=) 14.Bf3 (14.a4 a5 15.b5 Nd7=) 14...Ne6 15.a4 ½–½. Vadasz,Laszlo (2365) – Kolbus,Dietmar (2330), Budapest FS06 GM, 1997. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Qe7 8.Nbd2 Nbd7)

9.a3 a5 A) 10.0-0 Re8 (10...Rd8 11.Qc2 Nb6 12.b5 Be6 13.c5 Nbd5 14.Ne4 Bd7 15.Qc4 Be6= 0.00; 10...Nb6 11.b5 Re8 12.c5 dc5 13.Be5 Bf5 14.Rc1 Nbd7 15.Bc3 a4+= 0.37; 10...h6 11.Qc2 Re8 12.Ne4 Ne4 13.de4 Rd8 14.Rfd1 Rf8 15.Bc3 Qe6= 0.25) 11.Qc2 Nb6 12.c5 Nbd5 13.b5 Bd7 14.Rab1 Bb5 15.Be5 Bd3= –0.09; B) 10.Nb3 ab4 (10...b6 11.0-0 a4 12.Nbd2 Re8 13.Rb1 c6 14.Ne4 b5 15.cb5 cb5+= 0.41; 10...e4 11.de4 ab4 12.ab4 Ra1 13.Ba1 Qe4 14.0-0 Re8 15.Qd2 Qe7= 0.25; 10...a4 11.Nbd2 Nb6 12.0-0 Re8 13.Rc1 Bg4 14.c5 dc5 15.bc5 Nbd7+= 0.37) 11.ab4 Ra1 12.Qa1 d5 13.Ne5 Ne5 14.Be5 dc4 15.dc4 Qb4= –0.06; C) 10.b5 Nc5 (10...Re8 11.0-0 a4 12.Re1 Qe6 13.Ng5 Qe7 14.Nge4 Ne4 15.Ne4 Qh4= 0.09; 10...a4 11.0-0 Re8 12.Re1 Nb6 13.Rc1 Be6 14.c5 dc5 15.Be5 Bd7+= 0.31; 10...Qe6 11.0-0 h6 12.e4 Nc5 13.Re1 Re8 14.Rb1 Bd7 15.Bc1 Nh5= 0.06) 11.0-0 Bf5 12.e4 Be6 13.Ng5 Bd7 14.Qc2 Nh5 15.Ngf3 Nf4= –0.19; D) 10.Qc2 d5 (10...ab4 11.ab4 Ra1 12.Ba1 d5 13.0-0 e4 14.Ne1 c6 15.Bd4 b6= 0.00; 10...Nb6 11.0-0 Re8 12.c5 Nbd5 13.b5 Bd7 14.b6 Bg4 15.Rfc1 Rac8= 0.06; 10...Re8 11.0-0 Nb6 12.b5 Be6 13.Ng5 Bg4 14.Bg4 Ng4 15.Ngf3 f5= 0.22) 11.0-0 e4 12.de4 de4 13.Nd4 c5 14.bc5 Nc5 15.Rfd1 Bd7= –0.06.

9.a3 Nb6 A) 10.Qc2 Re8 (10...Bd7 11.Rc1 Na4 12.Ba1 a5 13.b5 Nc5 14.0-0 Rfe8 15.Rb1 Bg4= 0.03; 10...a5 11.0-0 Re8 12.c5 Nbd5 13.b5 Bd7 14.Rab1 Bb5 15.Be5 Bd3= –0.09; 10...Bg4 11.0-0 Rfe8 12.c5 Nbd5 13.Ne4 Rac8 14.Rfd1 Be6 15.c6 bc6+= 0.31) 11.0-0 Bd7 12.e4 a5 13.b5 Nh5 14.d4 ed4 15.Bd4 Nf4=+ –0.31; B) 10.Rc1 Be6 (10...a5 11.b5 Be6 12.0-0 Rfe8 13.c5 Nbd5 14.cd6 cd6 15.Ne4 Qd7+= 0.28; 10...Bd7 11.0-0 Rfe8 12.c5 Na4 13.Ba1 Bb5 14.cd6 cd6 15.e4 a5+= 0.31; 10...Bg4 11.0-0 a5 12.c5 Nbd5 13.b5 b6 14.cd6 cd6 15.e4 Nf4+= 0.37) 11.0-0 a5 12.c5 Nbd7 13.cd6 cd6 14.ba5 Ra5 15.Ng5 Rc5= 0.00; C) 10.e4 Nh5 (10...Bd7 11.Rb1 Nh5 12.0-0 f5 13.Re1 Nf4 14.Qc2 fe4 15.Ne4 Ne2= –0.19; 10...a5 11.0-0 Re8 12.Qc2 Bg4 13.c5 Nbd7 14.c6 bc6 15.Qc6 ab4= 0.22; 10...Re8 11.0-0 a5 12.Qc2 Bg4 13.c5 dc5 14.bc5 Nbd7 15.c6 bc6= 0.19) 11.0-0 Nf4 12.Bc1 f5 13.Re1 fe4 14.Ne4 Ne2 15.Re2 Bg4=+ –0.28; D) 10.0-0 Bg4 (10...Bd7 11.Rb1 Rfe8 12.c5 Na4 13.Ba1 b5 14.Rc1 a5 15.cd6 cd6= 0.03; 10...a5 11.b5 Be6 12.Ng5 Bd7 13.Rc1 h6 14.Ngf3 Rae8 15.c5 dc5= 0.25; 10...Be6 11.d4 ed4 12.Bd4 Rfd8 13.e4 Re8 14.Re1 Nfd7 15.Bg7 Kg7+= 0.28) 11.Rc1 a5 12.b5 Nbd7 13.h3 Bf5 14.d4 ed4 15.Nd4 Be6= 0.00.

9.a3 d5 A) 10.cd5 Nd5 11.0-0 Rd8 12.Qc2 c6 13.Rfc1 a5 14.b5 cb5 15.Qb3 Nc5= –0.16; B) 10.Qc2 Rd8 (10...a5 11.0-0 e4 12.de4 de4 13.Nd4 c5 14.bc5 Nc5 15.Rad1 Bg4= –0.03; 10...e4 11.Nd4 c5 12.N4b3 b5 13.de4 dc4 14.Nc5 a5 15.Nd7 Bd7+= 0.28; 10...c6 11.0-0 Rd8 12.Rfd1 e4 13.Ne1 dc4 14.Nc4 ed3 15.Rd3 c5+= 0.53) 11.cd5 Nd5 12.0-0 c6 13.Rfc1 a5 14.b5 cb5 15.Qb3 Nc5= –0.16; C) 10.0-0 Rd8 (10...e4 11.Nd4 c5 12.Nb5 ed3 13.Bd3 Ne5 14.Be5 Qe5 15.Nf3 Qe7+= 0.28; 10...a5 11.cd5 Nd5 12.b5 f5 13.Rc1 e4 14.Bg7 Kg7 15.de4 fe4+= 0.34; 10...dc4 11.Nc4 Nd5 12.Qa4 a6 13.Qc2 Rd8 14.Rfd1 c6 15.e4 Nf4= 0.00) 11.cd5 Nd5 12.Qc2 c6 13.Rfc1 a5 14.b5 cb5 15.Qb3 Nc5= –0.16; D) 10.d4 ed4 (10...dc4 11.de5 c3 12.Bc3 Nd5 13.Bd4 Ne5 14.Bc5 Qd8 15.Bf8 Qf8+– 0.91; 10...e4 11.Ne5 dc4 12.Ndc4 Nd5 13.0-0 Ne5 14.de5 Rd8 15.Qc2 Bf5= 0.12) 11.Bd4 dc4 12.Bc4 a5 13.b5 c5 14.bc6 bc6 15.Qa4 c5= –0.13.

9.a3 h6 A) 10.0-0 Re8 (10...a5 11.Qc2 Re8 12.Ne4 Ne4 13.de4 ab4 14.ab4 Ra6 15.Ra6 ba6+= 0.44; 10...a6 11.Qc2 b6 12.Qa4 Bb7 13.Rfd1 Rfe8 14.d4 e4 15.Ne1 a5= 0.25) 11.d4 e4 12.Ne1 d5 13.Rc1 dc4 14.Nc4 Nd5 15.Nc2 Qg5= 0.00; B) 10.e4 Re8 (10...a5 11.0-0 Re8 12.Qc2 Nh5 13.Nb3 a4 14.Nbd2 Nf4 15.Rae1 Nf6= –0.03; 10...g5 11.0-0 a5 12.d4 ed4 13.Nd4 Ne5 14.Qc2 Re8 15.c5 d5= 0.25; 10...a6 11.0-0 Re8 12.Qc2 c6 13.Rfd1 Rb8 14.Rab1 Ra8 15.c5 dc5= 0.25) 11.0-0 a5 12.Qc2 Nh5 13.Rfe1 Nf4 14.Bc3 ab4 15.ab4 Ra1= –0.09; C) 10.Qb3 a5 (10...Re8 11.0-0 a5 12.d4 e4 13.Ne1 Nb6 14.Nc2 a4 15.Qc3 Bg4= 0.09; 10...a6 11.0-0 Re8 12.Rfd1 b6 13.Qa4 Bb7 14.Qc2 c5 15.Rab1 cb4= 0.09; 10...Nb6 11.0-0 a5 12.Qc2 Re8 13.b5 Be6 14.c5 Nbd7 15.c6 bc6= 0.22) 11.0-0 Nb6 12.Qc2 Re8 13.c5 Nbd5 14.b5 Bd7 15.Rab1 Bb5= 0.00; D) 10.Qc2 Nb6 (10...Qe6 11.0-0 Re8 12.d4 c6 13.de5 de5 14.Rfd1 Rd8 15.Ne4 Ne4+= 0.59; 10...c6 11.0-0 Re8 12.Rfd1 Qe6 13.Ne4 d5 14.Nf6 Bf6 15.d4 e4+= 0.28; 10...a5 11.0-0 Re8 12.Ne4 Ne4 13.de4 ab4 14.ab4 Ra6 15.Ra6 ba6+= 0.47) 11.0-0 Bd7 12.Rab1 Rfe8 13.c5 Ba4 14.Qc1 Nbd5 15.Ne4 Ne4= 0.09.

9.Rb1 A) 9...d5 A1) 10.0-0 e4 (10...c6 11.Qc2 Re8 12.Rfc1 e4 13.Ne1 dc4 14.Nc4 Nb6 15.de4 Nc4= 0.19; 10...Rd8 11.Qc2 c6 12.Rfc1 h6 13.cd5 Nd5 14.a3 f5 15.Nc4 Qe6+= 0.28; 10...Re8 11.a3 e4 12.Nd4 c5 13.Nb5 ed3 14.Bd3 Ne5 15.Be5 Qe5+= 0.62) 11.Ne1 dc4 12.Nc4 Nb6 13.de4 Qe4 14.Bd4 Rd8 15.Rc1 Qe7= 0.09; A2) 10.Qc2 e4 (10...Re8 11.0-0 e4 12.Ne1 dc4 13.Nc4 Nb6 14.de4 Qe4 15.Bd3 Qe7= 0.19; 10...a5 11.b5 e4 12.Nd4 ed3 13.Bd3 Rd8 14.0-0 Ne5 15.Be2 Bg4= 0.19; 10...Rd8 11.0-0 c6 12.Rfc1 h6 13.cd5 Nd5 14.a3 f5 15.Nc4 Qe6+= 0.28) 11.de4 de4 12.Ng5 Re8 13.0-0 h6 14.Nh3 c5 15.a3 cb4= 0.03; A3) 10.Bc3 dc4 (10...e4 11.de4 de4 12.Nd4 c5 13.Nb5 cb4 14.Bb4 Nc5 15.0-0 b6= –0.16; 10...Rd8 11.0-0 dc4 12.dc4 e4 13.Nd4 c5 14.bc5 Nc5 15.Bb4 Nfd7= –0.16) 11.dc4 e4 12.Nd4 Rd8 13.0-0 c5 14.Nb5 b6 15.a3 a6=+ –0.63; A4) 10.cd5 Nd5 (10...a5 11.ba5 Nd5 12.Nc4 Rd8 13.0-0 Qe6 14.Qc2 Nb4 15.Qb3 Nc6+= 0.44) 11.a3 Rd8 12.0-0 b5 13.Qc2 Bb7 14.Rfe1 Rac8 15.d4 e4+= 0.28; B) 9...Re8 B1) 10.Bc3 Nb6 (10...d5 11.0-0 dc4 12.dc4 e4 13.Nd4 Rd8 14.Qc2 c5 15.Nb5 b6= 0.00; 10...c6 11.0-0 h6 12.a4 Qe6 13.Qc2 b6 14.b5 Bb7 15.d4 Qe7+= 0.41; 10...h6 11.0-0 Nb6 12.a4 Bg4 13.a5 Nbd7 14.h3 Be6 15.e4 Nh5= 0.22) 11.0-0 Bd7 12.d4 ed4 13.Nd4 c5 14.Nc2 Be6 15.Bf3 Rac8= –0.09; B2) 10.e4 a5 (10...Qd8 11.0-0 a5 12.b5 Nb6 13.Re1 a4 14.a3 Qe7 15.Qc2 Bg4= 0.25; 10...Nb6 11.0-0 Bd7 12.Qc2 a5 13.c5 Na4 14.cd6 cd6 15.ba5 Ra5= 0.03; 10...Kh8 11.0-0 a5 12.b5 Nb6 13.a4 Nfd7 14.Bc1 Nc5 15.Ra1 Be6= 0.00) 11.b5 Nc5 12.0-0 Nh5 13.Qc2 Nf4 14.Rfe1 Bg4 15.h3 Bh5= –0.06; B3) 10.a3 a5 (10...a6 11.0-0 a5 12.b5 Nc5 13.e4 Nh5 14.Bc1 Nf4 15.Nb3 Bg4= 0.03; 10...Nb6 11.0-0 Bd7 12.Qc2 h6 13.c5 Ba4 14.Qc1 Nbd5 15.Ne4 Ne4= 0.09; 10...h6 11.0-0 a5 12.b5 Nc5 13.Re1 Bf5 14.e4 Bg4 15.Bc3 a4= 0.12) 11.b5 Nc5 12.0-0 h6 13.e4 Nh5 14.Bc1 Nf4 15.Nb3 Bg4= 0.00; B4) 10.0-0 h6 (10...Nb6 11.a4 a5 12.c5 Nbd5 13.cd6 cd6 14.b5 Be6 15.Ng5 Nb6+= 0.31; 10...a5 11.b5 Nc5 12.Re1 Bf5 13.e4 Bg4 14.h3 Bf3 15.Nf3 Bh6+= 0.28; 10...d5 11.a3 e4 12.Nd4 c5 13.Nb5 ed3 14.Bd3 Ne5 15.Be5 Qe5+= 0.62) 11.a4 a5 12.b5 Nc5 13.Re1 Bf5 14.e4 Be6 15.Bc3 g5= 0.03; C) 9...Nb6 C1) 10.Bc3 Re8 (10...Bf5 11.0-0 Rae8 12.e4 Bd7 13.Nb3 Ng4 14.h3 Nh6 15.c5 Na4= 0.12; 10...h6 11.0-0 Re8 12.a4 Bg4 13.a5 Nbd7 14.h3 Be6 15.e4 Nh5= 0.22; 10...Bd7 11.0-0 Rae8 12.d4 ed4 13.Nd4 c5 14.Nc2 Be6 15.a3 Qc7= 0.12) 11.0-0 Bd7 12.d4 ed4 13.Bd4 c5 14.Ba1 Bf5 15.Rb3 Rad8= –0.03; C2) 10.a3 Re8 (10...a5 11.b5 h6 12.0-0 Re8 13.c5 dc5 14.Ne5 Nfd5 15.Nec4 Bb2= 0.12; 10...Be6 11.0-0 a5 12.b5 Rfe8 13.c5 dc5 14.Ne5 Nfd5 15.Qc2 Bf5+= 0.34; 10...Bf5 11.0-0 Bd7 12.Qc2 Rfe8 13.Nb3 Na4 14.Ba1 Nb6 15.e4 Ba4= 0.22) 11.0-0 Bd7 12.c5 Na4 13.Ba1 b5 14.Rc1 a5 15.cd6 cd6= 0.03; C3) 10.0-0 Bd7 (10...Bg4 11.a3 Rfe8 12.Bc3 h6 13.a4 Qd7 14.Ra1 a5 15.ba5 Nc8= 0.25; 10...a5 11.b5 a4 12.c5 dc5 13.Be5 g5 14.Bf6 Bf6 15.Ne4 Be6+= 0.37; 10...Re8 11.a4 a5 12.c5 Nbd5 13.cd6 cd6 14.b5 Bg4 15.Nc4 Nb4= 0.25) 11.a3 Rfe8 12.c5 Na4 13.Ba1 b5 14.Rc1 a5 15.cd6 cd6= 0.03; C4) 10.Nb3 Re8 (10...Be6 11.0-0 Rfe8 12.Qc2 Nfd7 13.Rfd1 c6 14.a3 Na4 15.Bc1 b5= 0.19; 10...Na4 11.Ba1 Re8 12.0-0 Nb6 13.Qc2 Bg4 14.h3 Bd7 15.Rfd1 Rad8= 0.09; 10...Bf5 11.e4 Bd7 12.0-0 Na4 13.Ba1 Rfe8 14.Qd2 Nh5 15.Rfe1 f5= 0.22) 11.0-0 c6 12.e4 Nbd7 13.Qc2 d5 14.b5 d4 15.bc6 bc6= 0.06; D) 9...a5 D1) 10.a3 ab4 (10...Re8 11.b5 Nc5 12.0-0 Bg4 13.h3 Be6 14.Re1 Bf5 15.e4 Be6= 0.12; 10...d5 11.b5 e4 12.de4 de4 13.Nd4 Rd8 14.0-0 Nc5 15.Qc2 Bg4= –0.03; 10...h6 11.b5 Nc5 12.0-0 Re8 13.Qc2 a4 14.e4 Nh5 15.Rfe1 Nf4= –0.13) 11.ab4 d5 12.e4 d4 13.Bc1 Nh5 14.0-0 Nf4 15.Re1 Qe6=+ –0.38; D2) 10.b5 Nb6 (10...Re8 11.0-0 Nc5 12.a3 Bg4 13.e4 Nh5 14.Ne1 Be2 15.Qe2 Nf4= –0.03; 10...a4 11.0-0 Re8 12.Re1 h6 13.a3 Qe6 14.e4 Nc5 15.Qc2 Bd7= 0.09; 10...Nc5 11.0-0 Re8 12.Re1 Bf5 13.e4 Bg4 14.h3 Be6 15.a3 a4= 0.06) 11.0-0 Re8 12.c5 dc5 13.Ne5 Nfd5 14.Ndf3 Be6 15.a3 Rad8= –0.06.

9.Qc2 a5 A) 10.a3 Re8 (10...d5 11.0-0 e4 12.de4 de4 13.Nd4 c5 14.bc5 Nc5 15.Rad1 Bg4= –0.03; 10...Nb6 11.0-0 Re8 12.b5 Bd7 13.Rac1 Rad8 14.c5 Nbd5 15.b6 Rc8+= 0.37; 10...ab4 11.ab4 Ra1 12.Ba1 b6 13.0-0 Bb7 14.e4 Ra8 15.Bc3 Nh5= 0.06) 11.0-0 Nb6 12.b5 Be6 13.c5 Nbd7 14.c6 bc6 15.Qc6 Nc5= –0.06; B) 10.ba5 Ra5 (10...Re8 11.Bc3 Nc5 12.0-0 e4 13.de4 Nfe4 14.Bg7 Kg7 15.Ne4 Ne4= 0.12) 11.0-0 Re8 12.Rfe1 b6 13.Nb3 Ra7 14.d4 e4 15.Nfd2 Bb7= –0.09; C) 10.b5 Re8 (10...a4 11.0-0 Nc5 12.a3 Bf5 13.Nh4 Bd7 14.Rae1 Ne6 15.d4 ed4= 0.25; 10...Nc5 11.0-0 Bf5 12.e4 Bd7 13.Nb3 Ne6 14.a4 Nf4 15.Bc1 Ne2= 0.25; 10...Rd8 11.0-0 Nc5 12.Rae1 Re8 13.e4 h6 14.a4 Be6 15.d4 ed4= 0.06) 11.0-0 Nc5 12.Rae1 Bg4 13.h3 Bd7 14.a3 h6 15.Bc3 a4= 0.03.

9.Qc2 a6 A) 10.a3 Nb6 (10...c6 11.0-0 b6 12.d4 e4 13.Ng5 Re8 14.Rfd1 Bh6 15.h4 Bg7= 0.00; 10...b6 11.0-0 Re8 12.Rfd1 c6 13.Rac1 h6 14.Ne4 d5 15.Nf6 Qf6+= 0.34; 10...Re8 11.0-0 b6 12.Rfd1 c6 13.Qa4 Bb7 14.d4 e4 15.Ng5 Bh6= 0.00) 11.0-0 Bd7 12.d4 e4 13.Ng5 Rfe8 14.c5 Na4 15.Bc1 d5= –0.25; B) 10.Nb3 Nb6 (10...c5 11.bc5 dc5 12.a4 Rd8 13.a5 Rb8 14.0-0 e4 15.de4 Qe4= 0.00; 10...Re8 11.0-0 c5 12.bc5 dc5 13.a4 h6 14.a5 Rb8 15.Rfb1 b6= 0.22; 10...b6 11.0-0 Bb7 12.e4 c5 13.a3 Rfc8 14.bc5 dc5 15.a4 Qd6= 0.09) 11.e4 Nh5 12.Bc1 Nf4 13.0-0 Ne2 14.Qe2 f5 15.Be3 Na4= –0.09; C) 10.c5 Nd5 (10...Re8 11.0-0 dc5 12.bc5 Rb8 13.Rab1 h6 14.c6 bc6 15.Qc6 Qe6= 0.25; 10...a5 11.cd6 cd6 12.b5 a4 13.Nc4 Nc5 14.Rc1 e4 15.de4 Nfe4+– 0.84; 10...dc5 11.bc5 Nd5 12.Rc1 Qe6 13.0-0 Rd8 14.Rfd1 f5 15.Nc4 h6= 0.19) 11.Qc4 N7f6 12.0-0 Bg4 13.a4 h6 14.Ne4 Be6 15.Nf6 Bf6=+ –0.69; D) 10.0-0 h6 (10...Re8 11.Rfd1 Nb6 12.Ne4 Bg4 13.c5 Nbd5 14.a3 Be6 15.Rac1 b6+= 0.28; 10...Nb6 11.d4 ed4 12.Bd4 c5 13.Bf6 Qf6 14.Rab1 Re8 15.Rfd1 cb4+= 0.41; 10...Rd8 11.a3 b6 12.d4 c5 13.Rfe1 e4 14.Ng5 Bb7 15.bc5 dc5= 0.12) 11.a3 b6 12.Qa4 Bb7 13.Rad1 Rfe8 14.Qc2 c5 15.e4 Nh5= –0.03.

9.Qc2 b6 10.0-0 (10.a3 a5 (10...Re8 11.0-0 a5 12.b5 Nc5 13.Rfe1 e4 14.de4 Nfe4 15.Bg7 Kg7+= 0.28; 10...c6 11.0-0 Re8 12.Rfc1 a6 13.Ne4 Ne4 14.de4 Qf6 15.Qd3 Re6= 0.25; 10...a6 11.0-0 c6 12.d4 Re8 13.de5 Ne5 14.Ne5 de5 15.Rfd1 c5= 0.25) 11.b5 Nc5 12.0-0 Re8 13.e4 Nh5 14.Bc1 Nf4 15.Re1 Qf6= –0.03; 10.b5 Nc5 (10...a6 11.0-0 Nc5 12.Nb3 Na4 13.Bc1 Bd7 14.ba6 Rfe8 15.e4 Ra6= –0.13; 10...Re8 11.0-0 a6 12.a4 Nc5 13.a5 ba5 14.Ra5 Bb7 15.Rfa1 e4+= 0.31; 10...h6 11.0-0 a6 12.a4 Bb7 13.Rfb1 Nc5 14.d4 ed4 15.Bd4 a5= –0.03) 11.0-0 a6 12.Rfe1 Re8 13.Nb3 Na4 14.Bc1 Bd7 15.d4 Bf5=+ –0.50; 10.Bc3 Re8 (10...a6 11.0-0 Re8 12.a4 c5 13.Rfb1 cb4 14.Rb4 Rb8 15.Rab1 Qd8+= 0.41; 10...c6 11.0-0 Re8 12.Qa4 Bb7 13.Rfd1 a6 14.d4 e4 15.Ng5 h6= 0.09; 10...c5 11.0-0 cb4 12.Bb4 Nc5 13.Rfb1 Bg4 14.h3 Bd7 15.a4 e4= 0.09) 11.0-0 c6 12.a3 a6 13.Rad1 h6 14.Qa4 b5 15.Qa5 Rb8= 0.00) 10...Bb7 (10...a6 11.d4 c5 12.bc5 bc5 13.de5 de5 14.Rab1 e4 15.Ng5 Bb7= –0.06; 10...Re8 11.Qa4 Bb7 12.e4 Nh5 13.a3 Nf4 14.Rae1 f5 15.Qc2 a6= –0.19; 10...h6 11.a3 a6 12.Rfe1 c6 13.e4 c5 14.Rab1 Qe6 15.Bc1 Nh5= 0.22; 10...a5 11.b5 Nc5 12.Rae1 Re8 13.a3 h6 14.e4 Bg4 15.h3 Bf3= 0.22) 11.Ne1 (11.e4 a6 12.a4 c5 13.Qc3 Nh5 14.Bc1 f5 15.Re1 Nhf6=+ –0.28) 11...Rfe8 (11...c5 12.bc5 dc5 13.Rd1 Rfd8 14.Bf3 Bf3 15.Nef3 h6= 0.06) 12.Rc1 (12.e4 c6 13.a3 d5 14.Nef3 a5 15.ba5 Ra5= –0.13) 12...a5 (12...c5 13.bc5 dc5 14.Bf3 Bf3 15.Nef3 Rad8= –0.09) 13.a3 (13.b5 a4 14.a3 Nc5 15.e4 Bh6= 0.00) 13...ab4 14.ab4 c5 (14...d5 15.b5 Ra2= –0.22) 15.Qb3 (15.e4 Ra2= –0.16) 15...Bc6 (15...d5= –0.22) 16.b5 Bb7 17.Bf3 Bf3 18.Nef3 Nh5 19.Ra1 f5 20.Ra8 Ra8 21.Ra1 Ra1 22.Ba1 g5 23.Qa2 g4 24.Qa8 Kf7 25.Qd5 Kg6 26.Ne1 Nhf6 27.Qc6 h5 28.g3 Bh6 29.Ng2 Bg5 30.f4 gf3 31.Nf3 e4 32.Ng5 Kg5 33.d4 cd4 34.Bd4 Ne5 35.h4 Kg4 36.Qb6 Kg3 37.Be5 Qe5 (better 37...de5 38.Qa5 f4 39.Qe1 Kg4 40.ef4 ef4=+) 38.Qa5+– Qb2 39.Qe1 Kf3? (better 39...Kg4+–) 40.Qf1 Kg3 41.Qf4 Kh3 42.Qh2 (42.Qf5?! Ng4 43.Qf1 Kg3+–) 42...Kg4 43.Qf4 (better 43.Qd6!? Kh3 44.Qh2 Kg4 45.Qf4 Kh3 46.Qf5 Ng4+–) 43...Kh3 44.Qh2 Kg4 45.Ne1?? (better 45.Qd6 Kh3 46.Qh2 Kg4 47.Qf4 Kh3 48.Qf5 Ng4 49.Qf1+–) 45...Qh2-/+ 46.Kh2 Nd7 (46...Kh4?! 47.Ng2 Kg4 48.b6=) 47.Ng2 Nb6 48.Nf4 Nc4 49.Nd5 Kf3 (49...Kh4 50.b6 Nb6 51.Nb6 f4 52.ef4 Kg4-/+) 50.b6? (better 50.Kh3-/+) 50...Nb6!–+ 51.Nb6 f4 52.Kg1 Ke3 53.Nd5 Kf3 54.Kf1 e3 (54...Kg4 55.Nf6 Kh4 56.Ne4–+) 55.Nc3? (better 55.Nf6!?-/+) 55...Kg3–+ 56.Ne4?? (better 56.Nd5–+) 56...Kh4 57.Nd6 Kg3 58.Ke2 Kg2 (better 58...h4 59.Nf5 Kg4 60.Nh6 Kh5 61.Nf5–+) 59.Ne4?? (59.Nf5 Kg1 60.Nd4=) 59...h4 60.Ng5 h3 61.Ne6 h2 (better 61...Kg3 62.Nd4–+) 62.Nf4 Kg3 63.Ke3 h1Q 64.Ne2 Kg4 65.Nd4 Qh3 66.Ke4 Qg2 67.Ke5 Qg3 68.Ke4 Qf4 69.Kd5 Qf7 70.Ke4 Qe7 71.Kd5 Kf4 72.Ne6 Kf5 73.Nd4 Kf6 74.Nc6 Qd7 75.Kc5 Ke6 76.Nd4 Ke5 77.Nc6 Ke4 78.Nb4 Qd4 79.Kb5 Qc3 80.Nc6 Kd5 81.Nb4 Kd6 82.Na6 Qd3 83.Kb6 Qb3 84.Ka5 Kc6 85.Nb4 Kc5 86.Na6 Kc4 87.Nc7 (87.Nb4 Qb4 88.Ka6 Qb8 89.Ka5 Qb5) 87…Qb7 (87...Qb7 88.Ne6 Qb5) 0–1. Gamback,Bjorn (2190) – Kaczmarek,Maciej (2040), Najdorf Memorial gr.A B Warsaw Poland, 2010. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Qe7 8.Nbd2 Nbd7)

9.Qc2 Qe6 A) 10.a3 Re8 (10...a5 11.0-0 Re8 12.d4 c6 13.de5 Ne5 14.Rfd1 Qf5 15.e4 Nf3+= 0.28; 10...c6 11.0-0 Re8 12.Ng5 Qe7 13.Ndf3 a5 14.Ne4 Ne4 15.de4 Bf8+= 0.37; 10...Qe7 11.0-0 Re8 12.Rfd1 h6 13.Ne4 Ne4 14.de4 a5 15.Bc3 Qf6= 0.22) 11.0-0 c6 12.e4 Nh5 13.d4 Nf4 14.Bd1 ed4 15.Nd4 Qe7= 0.00; B) 10.0-0 h6 (10...c6 11.d4 Re8 12.de5 Ne5 13.Ne5 de5 14.Rfd1 a5 15.b5 cb5+= 0.44; 10...Re8 11.Ng5 Qe7 12.a3 h6 13.Ngf3 a5 14.Rfb1 b6 15.Bc3 a4= 0.12; 10...a5 11.a3 Re8 12.d4 c6 13.de5 Ne5 14.Rfd1 Qf5 15.e4 Nf3+= 0.28) 11.d4 a5 12.a3 Qe7 13.Bd3 Re8 14.e4 ed4 15.Bd4 c5= 0.00; C) 10.Nb3 c6 (10...Nb6 11.0-0 Na4 12.Bc1 e4 13.Nfd4 Qe7 14.Nd2 ed3 15.Bd3 Bd7= 0.12; 10...c5 11.a3 Re8 12.0-0 h6 13.Rfe1 b6 14.Nfd2 Bb7 15.Bf3 Bf3= 0.12; 10...Nb8 11.0-0 Nc6 12.b5 Ne7 13.e4 h6 14.c5 a6 15.Rfe1 ab5+= 0.50) 11.0-0 d5 12.d4 e4 13.Nfd2 Re8 14.Rfc1 Qf5 15.h3 Nb6= 0.00; D) 10.d4 Qe7 (10...ed4 11.Nd4 Qe7 12.a3 a5 13.0-0 Rd8 14.Bc3 Ne5 15.Rfd1 ab4+= 0.28; 10...a5 11.a3 ed4 12.Nd4 Qe7 13.0-0 Rd8 14.Bc3 Ne5 15.Rfd1 ab4+= 0.28; 10...Re8 11.d5 Qe7 12.0-0 e4 13.Nd4 Nb6 14.a3 Bg4 15.Bg4 Ng4+= 0.31) 11.a3 ed4 12.Bd4 Nb8 13.0-0 Nc6 14.Rae1 Re8 15.Bd3 a5= 0.19.

9.Qc2 h6 A) 10.a3 a5 (10...c6 11.0-0 Re8 12.Rfd1 a5 13.Bc3 a4 14.Ne4 d5 15.Nf6 Qf6+= 0.28; 10...Qe6 11.0-0 Re8 12.d4 c6 13.de5 de5 14.Rfd1 Rd8 15.Ne4 Ne4+= 0.59; 10...a6 11.0-0 b6 12.Rfe1 Re8 13.Rad1 c5 14.Qa4 Rb8 15.b5 Ra8= 0.00) 11.0-0 Re8 12.Rfd1 Nb6 13.b5 Bd7 14.Rac1 a4 15.c5 Nbd5= 0.00; B) 10.Rb1 Rd8 (10...a5 11.b5 Nc5 12.Bc3 Re8 13.0-0 a4 14.a3 Bg4 15.h3 Be6= 0.00; 10...Qe6 11.0-0 a5 12.b5 Re8 13.d4 a4 14.a3 e4 15.d5 Qe7= 0.19; 10...Re8 11.0-0 a5 12.b5 Nc5 13.Rfe1 a4 14.a3 Be6 15.e4 Nh5= 0.03) 11.0-0 a5 12.b5 Nc5 13.Bc3 a4 14.a3 Bf5 15.Rfd1 e4= 0.00; C) 10.Rd1 a5 (10...c5 11.bc5 Nc5 12.0-0 Re8 13.Nb3 Na4 14.Ba1 Nb6 15.c5 Nbd5= 0.09; 10...Re8 11.0-0 a5 12.b5 Nc5 13.Rfe1 Bg4 14.h3 Be6 15.a3 Rad8= 0.09; 10...g5 11.0-0 a5 12.b5 g4 13.Nh4 Nc5 14.d4 ed4 15.Bd4 Nfe4+= 0.34) 11.b5 Nc5 12.0-0 Re8 13.Rfe1 a4 14.a3 Bf5 15.Nh4 Bc8= 0.00; D) 10.0-0 Rd8 (10...Re8 11.Rfd1 a5 12.a3 Nb6 13.b5 Be6 14.c5 Nbd7 15.c6 bc6+= 0.28; 10...a5 11.a3 Rd8 12.Rfb1 Re8 13.d4 e4 14.Ne1 Qe6 15.Nb3 a4+= 0.28; 10...Nb6 11.e4 Re8 12.c5 dc5 13.bc5 Nbd7 14.c6 bc6 15.Qc6 Rb8+= 0.41) 11.a3 a5 12.Rfb1 Nb6 13.e4 Nh5 14.c5 dc5 15.bc5 Nd7= 0.22.

9.Bc3 A) 9...Rd8 A1) 10.0-0 c6 (10...d5 11.d4 dc4 12.Bc4 ed4 13.ed4 Nb6 14.Re1 Qf8 15.Bb3 Nbd5= –0.22; 10...h6 11.Qc2 d5 12.d4 ed4 13.ed4 dc4 14.Rfe1 Nb6 15.Bc4 Qd6= –0.09) 11.d4 e4 12.Ng5 d5 13.b5 cb5 14.cb5 Nb6 15.Ba5 Ne8=+ –0.59; A2) 10.a3 c6 (10...Nb6 11.a4 Bf5 12.a5 Nbd7 13.e4 Bg4 14.0-0 c5 15.b5 Bf3+= 0.34; 10...d5 11.Qc2 c5 12.0-0 d4 13.ed4 cd4 14.Bb2 Nb6 15.c5 Qc7= 0.06; 10...a5 11.0-0 h6 12.ba5 Nc5 13.Rb1 Bf5 14.e4 Bd7 15.Qc1 Nh5= 0.22) 11.0-0 d5 12.Qc2 c5 13.bc5 e4 14.Ne1 ed3 15.Nd3 dc4= 0.00; A3) 10.a4 d5 (10...a5 11.ba5 d5 12.0-0 e4 13.Ne1 Ne5 14.a6 Ra6 15.d4 Nc4= –0.16; 10...c5 11.Qb3 cb4 12.Qb4 Nc5 13.0-0 a5 14.Qb1 Bd7 15.Nb3 e4= 0.00) 11.0-0 dc4 12.dc4 e4 13.Nd4 c5 14.bc5 Nc5 15.a5 Be6= –0.19; A4) 10.Qc2 d5 11.0-0 dc4 12.dc4 e4 13.Ng5 Re8 14.Qb2 Bh6 15.Nh3 Rd8= 0.00; B) 9...Re8 B1) 10.Qc2 d5 (10...c5 11.0-0 cb4 12.Bb4 Nc5 13.e4 Ne6 14.Rfe1 Nf4 15.Rab1 Bg4= 0.03; 10...a5 11.ba5 Nc5 12.0-0 e4 13.de4 Nfe4 14.Bg7 Kg7 15.Ne4 Ne4= 0.12; 10...Nb6 11.a4 a5 12.ba5 Nbd7 13.0-0 Nc5 14.Rfb1 Bd7 15.Ne1 Ra7= 0.00) 11.0-0 dc4 12.dc4 e4 13.Ng5 h6 14.Nh3 g5 15.Kh1 Rd8= –0.09; B2) 10.Rc1 d5 (10...Nb6 11.0-0 Bd7 12.Nb3 Rad8 13.e4 a6 14.Bd2 Qe6 15.c5 Na8+= 0.31; 10...Rd8 11.0-0 d5 12.d4 dc4 13.Bc4 ed4 14.ed4 Nb6 15.Re1 Qd6= –0.06; 10...Qe6 11.0-0 h6 12.d4 ed4 13.Nd4 Qe7 14.a3 a5 15.ba5 Nc5= 0.22) 11.0-0 dc4 12.dc4 e4 13.Nd4 c5 14.bc5 Nc5 15.Rb1 Bd7= –0.16; B3) 10.0-0 a6 (10...h6 11.a3 a5 12.ba5 Nc5 13.Rb1 Bd7 14.Qc2 Ba4 15.Qc1 Bd7= 0.22; 10...d5 11.Rb1 dc4 12.dc4 e4 13.Nd4 Rd8 14.Qc2 c5 15.Nb5 b6= 0.00; 10...b6 11.Qa4 Bb7 12.e4 Nh5 13.Qd1 Nf4 14.a4 a5 15.ba5 Nc5= –0.03) 11.a4 a5 12.ba5 Nc5 13.e4 Bd7 14.Re1 Nh5 15.Qb1 Nf4= –0.16; B4) 10.e4 Nh5 (10...Bh6 11.0-0 Bf4 12.a4 a5 13.b5 Nc5 14.Nb3 Nb3 15.Qb3 Bg4= 0.03; 10...Nf8 11.0-0 Ne6 12.a4 Nf4 13.a5 a6 14.Re1 Bg4 15.h3 Bd7= 0.00; 10...Nb6 11.a4 Bg4 12.a5 Nbd7 13.0-0 c5 14.b5 Bf3 15.Nf3 a6+– 0.72) 11.0-0 Nf4 12.Re1 g5 13.h3 Nb6 14.a4 g4 15.hg4 Bg4= 0.00; C) 9...Nb6 C1) 10.0-0 Re8 (10...Bf5 11.a4 a5 12.ba5 Nbd7 13.e4 Bg4 14.Ne1 Be2 15.Qe2 Nh5= 0.25; 10...Bg4 11.a4 Nbd7 12.a5 a6 13.e4 Rae8 14.h3 Bf3 15.Nf3 Bh6+= 0.44; 10...a6 11.a4 Bg4 12.a5 Nbd7 13.e4 Rae8 14.h3 Be6 15.Ng5 h6+= 0.34) 11.a4 a5 12.ba5 Nbd7 13.Re1 Nc5 14.Rb1 Bd7 15.Qc1 Ra7= 0.00; C2) 10.a4 Nbd7 (10...Bf5 11.a5 Nbd7 12.0-0 c5 13.e4 cb4 14.Bb4 Be6 15.Rb1 Rac8= 0.25; 10...Bg4 11.a5 Nbd7 12.0-0 a6 13.h3 Be6 14.Ng5 Rad8 15.Ne6 Qe6+= 0.31; 10...Be6 11.a5 Nbd7 12.0-0 c5 13.b5 a6 14.b6 Rae8 15.Rb1 Bf5+= 0.41) 11.0-0 d5 12.d4 dc4 13.Bc4 ed4 14.ed4 Qd6 15.a5 c6= 0.22; D) 9...d5 D1) 10.0-0 Rd8 (10...dc4 11.dc4 e4 12.Nd4 Rd8 13.Qc2 c5 14.bc5 Nc5 15.N4b3 Na4= 0.00; 10...e4 11.Nd4 Rd8 12.Qc2 ed3 13.Bd3 Ne5 14.Be2 dc4 15.Nc4 Nd5= –0.13; 10...Re8 11.Qc2 dc4 12.dc4 e4 13.Nd4 c5 14.bc5 Nc5 15.Rfd1 Bd7= –0.06) 11.d4 dc4 12.Bc4 ed4 13.ed4 Nb6 14.Re1 Qf8 15.Bb3 Nbd5= –0.22; D2) 10.Rb1 e4 (10...dc4 11.dc4 Rd8 12.e4 b6 13.0-0 Bb7 14.Qc2 Nh5 15.a3 Nf4= 0.03; 10...Rd8 11.Qc2 dc4 12.dc4 c6 13.0-0 e4 14.Ng5 Re8 15.Rfd1 h6= 0.19; 10...c5 11.bc5 e4 12.Nd4 Nc5 13.Bb4 ed3 14.Bc5 Qc5 15.Bd3 Rd8= –0.06) 11.de4 de4 12.Nd4 c5 13.Nb5 cb4 14.Bb4 Nc5 15.0-0 b6= –0.16.

7.d3 Re8

8.0-0 b6 9.Nc3 Bb7 10.a4 a5 11.b5 Nbd7 12.Nd2 Nc5 13.Nb3 Nfd7 14.Nc5 Nc5 15.Qc2 f5 16.Rad1 Qg5 17.Nd5 Ne6 18.f4 ef4 19.ef4 Qh6 20.Bf3 Kf7 (20...Nd4 21.Bd4 Bd4 22.Kh1=) 21.Kh1 Qh4 (21...Rab8 22.Rde1+=) 22.g3 (22.Bg7 Kg7 23.Nc7 Nc7 24.Bb7 Rab8+-) 22...Qd8 23.Rfe1 Bb2 24.Qb2 Rb8 25.Re2 Ng7 26.Re8 Qe8 27.Qf6 Kg8 28.Kg2 Bd5 29.Bd5 (29.cd5?! Qd7=) 29...Kh8 30.Kf2 Qf8 31.Qc3 Re8 32.Re1 Re1 33.Qe1 Qe8 34.Qc3 Qe7 35.d4 White prepares c5 35...h6 36.c5 (better 36.Qe1!? Qe1 37.Ke1+=) 36...dc5= 37.dc5 Qc5 38.Qc5 bc5 39.Bf7 g5?? (better 39...Kh7=) 40.Ke3 Kh7 41.Kd3 gf4 42.gf4 h5 (42...Kh8+-) 43.Kc4 h4 44.h3 Kh6 45.Kc5 Nh5 46.Bh5 Kh5 47.Kc6 Kg6 1-0. Spata,G (2255) - Djokic,Mihailo (2230), Titled Tuesday, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

8.0-0 Nh5 9.Qb3 (9.Nfd2 Na6+=) 9...Nd7 (9...a5 10.Nfd2=) 10.Nbd2 (10.Nfd2 Ndf6=) 10...c5 (10...Bf8 11.Rae1=) 11.a3 b6 12.Ne4 Nf8 (12...Ndf6 13.Nf6 Nf6 14.Qc3=) 13.Nc3 (13.Nfd2 a5+=) 13...f5 (13...Bb7 14.Rfd1=) 14.Nd5 (14.Nd2 Bd7+=) 14...Bb7= 15.Nd2 (15.h3 Bd5 16.cd5 Qc7=) 15...Nf6 (15...Bd5 16.cd5 Nf6 17.Bd1=) 16.Nf6 Bf6 17.Bf3 Bf3 18.Nf3 (18.gf3 Weaker is 18...Bg7-/+) 18...Ne6 19.Rfd1 (19.Qc2 Qc7=) 19...Qe7 20.h3 h5 (20...Rf8 21.Re1=) 21.Ra2 (21.b5 Qh7=) 21...g5 (21...Kh7 22.b5+=) 22.Kh1 (22.Qc2 Bh8=) 22...g4= 23.Ng1 Qg7 (23...Ng5 24.Rf1=) 24.Bc1 (24.Qc2 Ng5=) 24...Bg5 (24...Kf7 25.a4+=) 25.Rf1 (25.Qa4 Rec8=) 25...f4 26.Qd1 Qh6 27.f3 gh3 28.Nh3 Bh4 29.ef4+= ef4 30.Re2 Bg3 31.Bd2 Nd4 32.Re4 Rf8 33.Qc1 Ne6 34.Re2 Rf6 35.Be1 Qg6 36.Bg3 Qg3 37.Qe1 Qg6 38.Re4 Raf8 39.Qh4 Qf5 40.Rfe1 Kg7 41.Nf2 Qg5 42.Qg5 Ng5 43.Re7 ½–½. Weiland,Guenter (2035) – Stantic,Severino (2125), Arco op, 2001. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 Re8 6.Be2 d6 7.0-0 e5 8.d3)

8.0-0 h6 9.Nc3 c6 10.Nd2 d5 11.Qc2 d4 12.Nd1 Be6 13.e4 Na6 14.a3 c5 15.b5 Nc7 16.Nb3 b6 17.Bc1 Nd7 18.Bf3 h5 19.Qe2 Bf6 20.g3 (20.Nd2 a6 21.ba6 Ra6+=) 20...Bg5 21.Nd2 Bh3 22.Bg2 Bg2 23.Kg2 Ne6 24.Nf3 Bc1 25.Rc1 Kg7 26.Nb2 h4 27.Nh4 Qh4 28.gh4 Nf4 29.Kf3 Ne2 30.Ke2 Rh8 31.Kf3 Rh4 32.Rh1 Rah8 33.Kg3 Rh3 34.Kg2 Nf6 35.a4 Ng4 36.a5 Nf2! 37.Kf2 Rh2 38.Rh2 Rh2 39.Kg3 (better is 39.Ke1 Rb2 40.ab6 ab6 41.Ra1–+) 39...Rb2 40.ab6 ab6 41.Ra1 Rb3 42.Ra6 (42.Rd1 f5 43.Kf3 Kf6–+) 42...Rd3 43.Kf2 Rc3 44.Rb6 Rc4 45.Rc6 Rc2 46.Ke1 c4 47.b6 c3 48.b7 Rb2 49.Rc7 g5 50.Rc5 (50.Rd7 g4 51.Rc7 g3–+) 50...f6 51.Rc7 Kg6 52.Rd7 g4 53.Rc7 g3 54.Kf1 Kg5 0–1. Medves,Adriano – Garonzi,Martino (2000), 11th Condino Open, 2011.

8.Qb3 a5 9.a3 e4 (9...ab4 10.ab4 Ra1 11.Ba1=) 10.de4 Ne4 11.Bg7 Kg7 12.Ra2 (12.Qb2 Qf6 13.Qf6 Kf6=) 12...Qf6 13.0-0 Nc6 (13...Bg4 14.Nd4 Be2 15.Re2 ab4 16.ab4=) 14.Rc2 (14.b5 Ne5=) 14...ab4 15.ab4 Bf5 16.Rcc1 (16.Nc3 Nc3 17.Rc3 Bg4=) 16...Ra7 (16...g5 17.Nc3 Nc3 18.Rc3=) 17.Nc3 (17.Na3 Re7=) 17...Nc3 18.Rc3 Rea8 19.b5 Ra3 (19...Ne5 20.b6 Ra2 21.Nd4=) 20.Qa3 Ra3 21.Ra3 Qb2 22.Raa1 (22.Ra4 Qe2 23.bc6 bc6 24.Nd4=) 22...Ne5 (better is 22...Qe2!? 23.bc6 Qc4 24.cb7 Qb4+=) 23.Nd4+= Be4 24.Rad1 (24.Ra4 c5 25.bc6 Nc6+=) 24...b6 (24...c5 25.bc6 bc6 26.Rfe1=) 25.f3 (25.Ra1 Qc3+=) 25...Bb7 (25...Bc2 26.Rc1 Bd3 27.Bd3=) 26.Rfe1 h5 27.Rb1 Qa3 28.Rb3 Qa5 29.Kf2 Nd7 30.Rbb1+/– Qa8 31.Ra1 Qd8 32.Kg1 h4 33.Kf2 Nc5 34.Ra3 Qf6 35.Kg1 Qe7 36.Bf1 Qf6 37.h3 Qg5 38.Ra7 Qe7 39.Nb3 Nb3= 40.Rb7 Nc5 41.Ra7+= Kh6 42.Ra2 f5 43.Rd2 Qf6 44.Rd4 Ne6 Black intends f4 45.Rdd1 Qc3 46.Rc1 Qa3 47.Rc2 Qc5 48.Kf2 f4 49.Rc3 Kg5 50.Kg1= fe3 51.Kh1 Nd4+= 52.f4 Kf4 53.Rce3 Nf5 54.Rf3 Kg5 55.Bd3 Nd4 56.Rfe3 Qb4 57.g3 Qd2 58.gh4= Kh6 59.Be4 Qf2 60.Bg2 Nf5 61.Re8 Nh4 62.R1e2 Qf6 63.R8e6 Qg5 64.R6e4 Nf5 65.Rg4 Ng3-/+ 66.Rg3 Qg3–+ 67.Re4 d5 68.cd5-/+ Qd3 69.Re6 Qb5–+ 70.Be4 Kg5 71.Rg6-/+ Kf4 72.Rg4 Ke5 73.Bg2 Qb1 74.Kh2 b5 75.h4 b4 76.Rg5 Kf6–+ 77.Rg4 b3 78.Be4 Qc1 79.h5 b2 80.Rg6 Kf7 81.Rg4 b1Q 82.Bb1 Qb1 83.h6 Qf5 84.Rh4 Kg8 85.h7 Kh8 0–1. Fulgenzi,E (2355) – Alonso,S (2435), 83rd ch–ARG s/f, Buenos Aires ARG (9), 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

8.Qb3 Nbd7 9.0-0 a5 10.a3 e4 11.de4 Ne4 12.Bg7 Kg7 13.Bd3 (13.Nc3 Nc3 14.Qc3 Qf6=) 13...Nef6 (13...Qf6!? 14.Be4 Qa1+= (worse is 14...Re4 15.Nc3 Re8 16.Nd5+=)) 14.Nc3+= b6 15.Rad1 Bb7 16.Be2 ab4 17.ab4 Ne4 18.Nd5 Ndf6 19.Nd4 Nd5 20.cd5 Qg5 21.Nb5 Re7 22.Rd4 (22.Bf3 Nf6+=) 22...Nf6 Now all is on d5 (22...c5 23.bc5 bc5 24.Re4 Re4 25.Nd6 Bd5 26.Ne4 Be4 27.f3=) 23.Bf3 Qe5 24.Rc1+/– Ba6 25.Nc3 Bb7 26.h3 h5 27.Nb5+/– g5 28.g3 g4 29.hg4 hg4 30.Bg2 Ba6 31.Nc7 Rc8 32.b5 Bb7 33.Rdc4+– Rh8 34.Na6 Qh5 35.Nb4 Re5 36.Qd1 Rf5 37.Rf4 Rf4+/– 38.ef4 Bc8 39.Qd4 Bf5 40.Rc6 Bd7 41.Rd6 Qh2 42.Kf1 Bb5 43.Nd3 Rh6 44.Rb6 Bd7 45.Ne5 Bf5 46.d6 Kh7 47.d7 Nd7 48.Nd7 Bd7 49.Rh6 Qh6 50.Be4 Kg8 51.Qd7 Qb6 52.Bd5 Kh8 53.Qe8 Kg7 54.Qf7 Kh6 55.Qf8 Kg6 56.Be4 Kh5 57.Qf5 Kh6 58.Qg5# 1–0. Gelashvili,T (2520) – Ermenkov,E (2470), European GP, Izmir TUR (8), 2003. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Re8)

8.Nbd2 a5 9.a3 Nc6 10.b5+= Nb8 11.0-0 Nbd7 12.Qc2 h6 13.Rae1 Nc5 Black plans e4 14.Nb3 e4 15.de4 Nb3 16.Qb3 Ne4 17.Bg7 Kg7 18.Nd4 Bd7 19.Rd1 Qg5 20.Bf3 Kg8 21.Qc2 Qe5 22.Rfe1 Re7 23.Be4 Qe4 24.Qc3 Qe5 25.Ne2 Bg4 26.Rd5 Qg7 27.f3 Qc3 28.Nc3 Be6 29.Rd4 Rc8 30.Kf2 Kg7 31.Nd5 Ree8 32.g4 g5 33.Rc1 h5 34.c5 hg4 35.fg4 Red8 36.cd6 Rd6 37.Nc7 Rd4 38.Ne6 fe6 39.Rc8 Rg4 40.Rc7 Kf6 41.Rb7 Ra4 42.b6 Ra3 43.Rb8 Rb3 44.b7 Kg7 45.Ra8 (45.Kf3 a4=) 45...Rb7 46.Ra5 Kf6 47.Kf3 ½–½. Figura,Atila Gajo (2390) – Teske,Heike (2170), RSX7E – A15 – Engl vs. Koen.Ind–1, 2009. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

8.Nbd2 Nfd7 9.Qc2=.

8.Nbd2 h6 9.Qc2 a5 10.a3 Bf5 11.0-0 e4 (11...Qe7 12.e4 Bg4 13.h3=) 12.de4+= Ne4 13.Ne4 (13.Bg7 Ng3 14.Qb2 Ne2 15.Kh1 Nd7+/-) 13...Be4= (13...Re4? 14.Bg7 Kg7 15.Bd3+-) 14.Qd2 Bb2 15.Qb2 Nc6 16.Rfd1 Ne5 17.Ne5 Re5 18.f3 Bc6 19.Qe5 de5 20.Rd8 Rd8 21.Rd1 ½-½. Gamback,Bjorn (2155) - Hansen,Pa (2115), TCh-NOR Club, 2019. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

8.e4 Bg4 9.Nbd2 Nh5 10.Ng1 Be2 11.Ne2 Qg5 12.g3 Bh6 13.Nf3 Qg4 14.Neg1 Qe6 15.h3 f5 16.ef5 gf5 (worse is 16...Qf5 17.g4 Qf7 18.gh5+–) 17.Nh4 Nf6 Black prepares the advance e4 18.Ne2 e4 (better is 18...a5!? 19.b5 a4+=) 19.Nd4+/– Qe5 20.Nhf5 ed3 21.Kf1 Bg7 22.Ng7 Kg7 23.Qd3 Kg8 24.Qf5 Qe4 25.Rg1 Nbd7 26.Qe4 Re4 27.Re1 (27.f3 Re3+/–) 27...Rae8 28.Re4 Ne4 29.Nb3 Nb6 30.c5 Nc4 31.Bd4 dc5 32.bc5 Ned2 33.Nd2 Nd2 34.Kg2 Re4 35.Be3 Nc4 36.Bf4 Re7 37.Rd1 b6 38.Rd4 Na5 39.Ra4 Nc6 40.cb6 cb6 41.Rc4 Na5 42.Rc8 Kf7 43.Bd2 Re2 44.Ba5 ba5 45.Rc3 (45.a3 Ra2 46.Rc3 a6+–) 45...a4? (45...Ra2 46.g4+=) 46.g4 (better is 46.Ra3+–) 46...Rb2? (better is 46...Ra2 47.Kf3 a6+=) 47.Rc4 (47.Rc4 Ra2 48.Rc7 Kg6 49.Ra7+/–) 1–0. Burke,John S – Keuneke,Tobias, London ENG, 3rd Classic Open, 2011.

8.0-0 a5

9.a3 e4 10.de4 Ne4 11.Bg7 Kg7 12.Qd4 Qf6 13.Qf6 Kf6 14.Nbd2 Nd2 15.Nd2 Na6 ½–½. Nybaeck,Tomi – Novik,Maxim, It Open Heart Of Finland (8), 2001.

9.a3 e4 10.de4 Ne4 11.Bg7 Kg7 12.Qd4 Qf6 13.Qf6 Kf6 14.Nfd2 Nd2 15.Nd2 ab4 16.ab4 Ra1 17.Ra1 Na6 (17...Nc6 18.b5 Nd4 19.Bd3 Ne6 20.Ne4 Ke7 21.Ra8 f5 22.Nc3 c6+= 0.44) 18.b5 Nc5 19.Ra8 (19.Bf3 h5 20.Ra8 h4 21.b6 cb6 22.Ra7 Be6= –0.16) 19...Bd7 (19...h6 20.Bf3 g5 21.b6 cb6 22.h3 Bd7+= –0.28) 20.Re8 (20.Ra7 h6= 21.Bf3 c6 22.bc6 bc6= 0.00) 20...Be8 21.f4 (21.Bf3 c6 22.Ne4 Ne4= 0.00) 21...c6 (21...Bd7 22.g4= (22.Bf3 Be6= 0.03) 22...Ke7= 0.03) 22.bc6 (22.g4 Bd7=) 22...Bc6 23.Kf2 d5 (23...Ke7 24.Bf3=) 24.Bf3 Ke6 (24...dc4 25.Bc6 bc6 26.Nc4=) 25.cd5 Bd5 26.e4 Bc6 27.Ke3 Ke7 (27...b5 28.Kd4 Nd7 29.g4=) 28.g3 (28.e5 Bf3 29.Nf3 f6+=) 28...h6 (28...f6 29.e5=) 29.h4 (29.e5 Bf3 30.Nf3 Ne6+=) 29...b5 30.h5 gh5 31.Bh5 f6 32.Bg4 Bd7 33.Be2 Kd6 34.Kd4 Ne6 ½–½. Espig,L (2425) – Kempinski,Robert (2530), Bundesliga, 2002. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0)

9.a3 h6 10.Nbd2 Nbd7 11.Nb3 a4 12.Nbd2 c5 13.Qc2 Qc7 14.Rfc1 b6 15.Ne4 Ne4 16.de4 Bb7 17.Nd2 h5 18.Nb1 Nf6 19.Nc3 Bh6 20.Bd3 Red8 21.Na4 Ne4 22.Nb6 Qb6 23.Be4 Be4 24.Qe4 cb4 25.c5 dc5 26.Qe5 Kh7 27.Rc5 ba3 28.Bd4 a2 29.Rb5 Qd6 30.Qd6 Rd6 31.Rb7 Kg8 32.Rb2 Rda6 33.Kf1 Bg7 34.Bg7 Kg7 35.Ke2 g5 36.f3 Kf6 37.Rb5 Ra5 38.Rb6 Ke5 39.Rb7 f5 40.Kd3 Ra3 41.Ke2 Kd5 42.Kd2 g4 43.f4 h4 44.Rd7 Kc6 45.Rf7 R8a5 46.Rf6 Kd7 47.Rb6 Kc7 48.Re6 Rd5 49.Kc2 Kd7 50.Rb6 Re3 51.Ra2 Re2 52.Kb3 Rd3 53.Kc4 Ra2 54.Kd3 Rg2 55.Rb5 Rh2 56.Rf5 Ra2 57.Rh5 h3 58.Rh4 h2 (59.Ke4 Ra4 60.Ke5 g3 61.Rh7 Kc6 62.Rh6 Kb5–+) 0–1. Keiter,Rodan – Becker,Joerg, VK Gr1, 1999.

9.b5 Nbd7 10.Nc3 Nc5 11.Rc1 a4 12.Ba3 e4 13.de4 Nfe4 14.Ne4 Ne4 15.Nd4 h5 16.Bf3 Qg5 (16...Qh4 17.c5=) 17.Be4 (17.b6 cb6 18.Nb5 Qd8+/-) 17...Re4= 18.Nf3 Qd8 19.Qd5 Re8 20.Rfd1 Bf5 21.Qd2 Bg4 22.Bb2 Bf3 23.gf3 Qg5 24.Kh1 Qf5 25.Kg2 Qg5 26.Kh1 Qf5 27.Kg2 Qg5 28.Kh1 Qf5 ½-½. Andreikin,D (2720) - Ivic,Velimir (2580), FIDE World Cup, 2021. (=1.Nf3 A15: English Opening: 1...Nf6 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

9.b5 Nbd7 10.Nc3 Nc5 11.Qc2 Bf5 Black plans e4 12.Nh4 Be6 13.Rad1 a4 14.Nf3 a3 15.Bc1 e4 16.Ne4 Nfe4 17.de4 Bg4 18.h3 Bd7 19.e5 Be5 ½–½. pcmvr (2730) – silvana (2650), net–chess.com, 2007.

9.b5 Nbd7 10.Nc3 Nc5 11.e4 Ng4 12.h3 Nf6 13.Nh2 c6 14.Qc2 Ne6 15.Rae1 Nd4 Black begins to deal mighty blows 16.Qd1 cb5 17.cb5 a4 18.Ba3 (18.Nf3!?+=) 18...Qa5-/+ 19.Qc1 (19.Bb2 Be6 20.Nf3 a3-/+) 19...Bh3!–+ (19...Nb5?! 20.Nb5 Qb5 21.Bd6=) 20.Qb2 (20.gh3 Rac8) 20...Be6 (worse is 20...Ne2 21.Re2 Be6 22.Bd6-/+) 21.Rb1?? (better is 21.Nf3 Rac8 22.Bb4–+) 21...Qc3!! 22.Bd6 a3 (22...a3 23.Ba3 Ra3–+) 0–1. Sviridov,Valentin (2200) – Jasnikowski,Zbigniew (2395), Karvina 5th, 1982.

9.b5 Nbd7 10.Nfd2 Nc5 11.Nc3 Bf5 12.Nb3 Nfd7 13.Qc2 c6 14.bc6 bc6 15.Ba3 Qb6 16.Rab1 Qa7 17.Nc5 Nc5 18.Na4 (18.Bc5 dc5 19.Bf3 Red8+=) 18...Na4= 19.Qa4 c5 20.Qc2 Rab8 21.Bf3 Qd7 22.Bb2 Bd3 (22...a4 23.Bd5=) 23.Qd3+= e4 24.Be4 Bb2 25.Qc2 Bf6 26.g3 a4 27.Rb8 Rb8 28.Rb1 Rb1 29.Qb1 Kg7 30.Kg2 h5 31.h3 a3 32.Qd3 Bb2 33.Bd5 Qe7 34.Qb3 Qf6 35.Qb7 Bc3 36.Qb1 Bb4 37.Qd1 Qb2 38.Qf3 Qf6 39.Qf6 Kf6 40.f4 Be1 41.Kf3 Ke7 42.g4 hg4 43.hg4 Bd2 44.Ke2 Bc1 45.g5 ½–½. Nikolaidis,I (2555) – Pavlidis,Ant (2470), Rio GRE, 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8 8.d3)

9.b5 e4 10.de4 Ne4 11.Nd4 Nd7 12.Nc3 Nc3 13.Bc3 Nc5 14.Rc1 Ne4 15.Ba1 Bd7 16.Bf3 b6 17.Qc2 Qe7 18.Rfd1 Rac8 19.Nc6 Bc6 20.bc6 Ba1 21.Ra1 f5 22.Rd4 Nf6 23.Rad1 Qg7 24.h3 Re5 25.g4 fg4 26.hg4 Rce8 27.Rf4 h5 28.gh5 gh5 29.Kf1 Qg5 30.Rdd4 Kh8 31.Qb2 Kh7 32.Rh4 Kh6 33.Rdf4 Qg6 34.Qd4 R8e6 35.Bd1 b5 36.cb5 Rb5 37.Bc2 Qg7 38.Bf5 Ree5 39.Bd3 Rbd5 40.Qc3 Rc5 41.Qb2 Rc6 42.Rf3 Rb6 43.Qc3 Nd5 44.Qc1 Rg5 45.Rh1 Nb4 46.Bb1 Rc6 47.Qd2 Qa1 48.Ke2 Rd5 49.Bd3 Qa2 50.Qa2 Na2 51.e4 Rg5 52.Kd2 Nb4 53.Bb1 Kg7 54.Rh4 d5 55.Rhf4 de4 56.Rf7 ½–½. Kortschnoj – Glek, Budapest 1996.

9.b5 e4 10.de4 Ne4 11.Nd4 Nd7 12.Nc3 Nc3 13.Bc3 Nc5 14.Rc1 Ne4 15.Ba1 f6 16.Re1 Qe7 17.Bb2 Qe5 18.f3 Nc5 19.e4 Qg5 20.Nc2 Be6 21.Bc3 Bh6 22.Rb1 Na4 23.Bd4 Bg7 24.Be3 Qh4 25.Bf2 Qg5 26.Rb3 Nc5 27.Re3 Nd7 28.Nd4 Bf7 29.Qb3 Bh6 30.Rd1 f5 31.g4 fg4 32.fg4 Nc5 33.Qc2 Qe7 34.Rh3 Ne4 35.Be1 Bf4 36.Ra3 Qe5 37.h3 Qc5 38.Qd3 a4 39.Kg2 Be5 40.Nc2 Bb2 41.h4 Re5 42.Rb1 Ba3 43.Na3 d5 44.Rb2 Rae8 45.cd5 Nd6 46.Bf2 Re2 47.Re2 Re2 48.Qe2 Bd5 49.Kh2 Qa3 50.Bg3 Ba2 51.Bd6 Qd6 52.Kh3 Be6 53.Qe4 a3 54.Qe1 a2 55.Qa1 Qd3 56.Kh2 Qe2 57.Kg3 Bd5 58.h5 Qe3 59.Kh2 Qf2 60.Kh3 Bg2 61.Kh2 Bf1 62.Kh1 Qg2# 0–1. EnginMax20 – Nejmet260, computer chess game, 2001.

9.b5 e4 10.de4 Ne4 11.Bg7 Kg7 12.Qd4 Qf6 13.Bd3 Nc5 14.Qf6 Kf6 15.Nc3 Be6 (15...Nd3? 16.Nd5 Kg7 17.Nc7+–) 16.Be2 Nbd7 17.Nd5 Bd5 18.cd5 Re4 19.Rac1 Ra4 20.Rc2 Nb6 21.Rd1 Re8 22.h3 Re7 23.g4 Kg7 ½–½. Ortiz Elias,Jose (2460) – Soentges,Karl_Heinz (2465), ICCF, 2001. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0)

8.0-0 a6

9.a3 Nbd7 10.Nbd2 h6 11.Qc2 c5 12.Ne4 Qc7 13.Nfd2 cb4 14.ab4 d5 15.Nf6 Nf6 16.Rfc1 Bd7 17.Qb3 Qd6 18.cd5 Qd5 19.Bf3 Qb3 20.Nb3 Rab8 21.Rc7 Bb5 22.Nc5 Bd3 23.Bb7 Red8 24.Be5 Nd5 25.Bg7 Kg7 26.Bd5 Rd5 27.Nd3 Rd3 28.g3 Rd6 29.Ra7 Rb4 30.R7a6 Ra6 31.Ra6 h5 32.Kg2 h4 33.Rd6 hg3 34.hg3 Rb2 35.g4 Ra2 36.Kg3 Rb2 37.g5 Ra2 38.f3 Ra5 39.Kg4 Ra4 40.e4 Ra1 41.e5 ½–½. Dzieniszewski – Dobosz, Poland, 1983.

9.Nbd2 Nc6 10.a4 (better is 10.a3!?=) 10...Nb4-/+ 11.Qb3 a5 12.Bc3 c5 13.Ne1 Bg4 14.Bg4 Ng4 15.h3 Nf2?? (better is 15...Nf6+=) 16.Rf2+– Qh4 17.Nef3 Qg3?? (better is 17...Qh6!? 18.Bb4 ab4+/–) 18.Bb4 Bh6 19.Nf1 Qf2 20.Kf2 e4 21.de4 Re4 22.Bd2 1–0. Fournier,Frederic – Vinsot,Serge, Active, 1999.

8.0-0 c6

9.a4 d5 10.Be5+/– Nbd7 11.Bb2 dc4 12.dc4 Qe7 13.Qb3 Nf8 14.Nbd2 Be6 15.Rfd1 Rad8 16.Bd4 b5? (better is 16...b6+/–) 17.ab5+– cb5 18.Ra7 bc4 19.Nc4 (19.Re7?! cb3 20.Re8 Re8+–) 19...Rd7 20.Bc5 Rd1 21.Qd1 Qd8 22.Qd8 Rd8 23.Ng5 (23.Nfe5 Nd5+–) 23...Bd5 (23...Bc4 24.Bc4 Rd1 25.Bf1+–) 24.Nb6 h6 25.Nd5 hg5 26.Nf6 Bf6 27.b5 Ne6 28.Bb4 Rc8 29.b6 Rc1 30.Bf1 Be5 (30...Rb1 31.Ra4 Nd8 32.g3+–) 31.b7 Rb1 32.Ra8 Kg7 33.b8Q Bb8 34.Rb8 f6 (34...Rc1 35.Ba3 Rc7 36.Bb2 f6 37.Bb5+–) 35.Bf8! Kf7 (35...Nf8 36.Rb1 Discovered attack) 36.Rb1 (36.Rb1 Kf8 37.Rb7+–) 1–0. Fournier,Frederic (2170) – Ramta (1930), Active (7), 2002.

9.a4 Nbd7 10.Nc3 d5 11.d4 e4 12.Nd2 Nf8 13.b5 h5 14.a5 h4 15.a6 ba6 16.bc6 Qb6 17.Qc1 dc4 18.Nc4 Qc6 19.Ne5 Qb7 20.Ba6 Qc7 21.Ne4 Qb6 22.Bc4 Ne6 23.Nc5 h3 24.g3 a5 25.Rb1 Ra7 26.Ba3 Qc7 27.Bb5 Qd8 28.Be8 Qe8 29.Ne6 Be6 30.Qc6 Qd8 31.Bd6 Ra8 32.Qa8 Qa8 33.Rb8 Qb8 34.Bb8 Ne4 35.f3 Be5 36.Be5 Nd2 37.Rf2 Nc4 38.Bf4 a4 39.e4 a3 40.Rc2 Nb2 41.Bc1 1–0. Kaenel – Bucher, Biel 1998.

9.Nc3 Be6 10.Ng5 d5 11.Ne6 Re6 12.cd5 cd5 13.Nb5 a6 14.Nc3 d4 15.Na4 de3 16.fe3 Nbd7 17.Qb3 Rc8 18.Rac1 Rec6 19.Rc6 Rc6 20.Bf3 Rc7 21.d4 ed4 22.ed4 b5 23.Nc5 Nc5 24.bc5 Ne8 25.Rd1 Rd7 26.d5 Bf8 27.d6 Qc8 28.Ba3 Ng7 29.c6 Rd8 30.c7 Rd7 31.Rc1 h5 32.Bb7 1–0. Bendig – Collado, corr ICCF WT–I–1290 1991–93.

8.0-0 Nbd7

9.a3 a5 10.Nc3=.

9.a3 Nf8 10.Qc2 Qe7 (10...Bg4 11.Nc3+=) 11.Nc3 c6 (11...Bd7 12.Rfc1=) 12.a4 (12.Rfd1 Bf5+=) 12...a5 (12...Ne6 13.a5+=) 13.b5 Ne6 (13...Bg4 14.Rab1=) 14.Ba3+= cb5 15.Nb5 (15.cb5 Nc5=) 15...Nc5 Black prepares the advance e4 16.Nd2 (16.e4 Nh5=) 16...Bd7 17.Bf3 (17.Rab1 Rac8+=) 17...e4 (17...Bf5 18.Ne4 Be4 19.de4+=) 18.de4+= Rac8 (18...Bc6 19.e5 Qe5 20.Bc6 bc6 21.Nc7+/–) 19.Bb2 (19.Rab1 Rcd8+=) 19...g5 20.Rfd1 (20.h3 b6+/–) 20...g4 21.Be2 h5 22.f3 h4 23.Nb3 gf3 24.Bf3 Nce4 25.Bd4 d5+= 26.Na5 White fights for the Initiative 26...b6 27.Bb6+/– Ng4 28.Be4+– de4 29.Rab1 Qe5 30.g3+– Re6 31.Rd7 Rb6+/– 32.Qe2 32...Nf6+= 33.Rb7 Rb7 34.Nb7 hg3 35.N5d6 Ra8 36.a5 gh2 37.Kh1 Qg5 38.Qf2 Qg6 39.Nf5 Bf8 40.Qf1 Ra6 41.Rb2+/– White gets deadly initiative 41...Ng4 Black threatens to counter with Rf6 42.Rg2 Qh5 43.Nbd6 White intends Qd1 43...Kh7 44.Ne4 Kh8 45.Rg3 Bh6 46.c5 Re6 47.Ned6 (47.Ned6 Kh7 48.a6+– (worse is 48.Nh6 Rh6 49.Rg2 f6+–)) 1–0. Hoebel,Hartmut (2445) – Pecis,Gianfranco (2285), corr ICCF EU–EM–M–003, 2002.

9.Qb3 b6 10.Nc3 Bb7 11.Rfd1 a6 12.Rac1 Rb8 13.Nd2 Nf8 14.Bf3 Bf3 15.Nf3 Ne6 16.d4 ed4 17.Nd4 Nd4 18.Rd4 a5 19.b5 Nd7 20.Rdd1 Bc3 21.Qc3 f6 22.c5 Nc5 23.Qf6 Qf6 24.Bf6 Rf8 25.Bd4 Ne6 26.a4 Rf7 27.e4 Re8 28.f3 Ree7 29.Be3 Kg7 30.Rd5 Nf8 31.Rc4 h6 32.h4 Ne6 33.Kf2 Nf8 34.Ke2 Ne6 35.g3 Nf8 36.f4 h5 37.Kf3 Ne6 38.g4 hg4 39.Kg4 Re8 40.h5 gh5 41.Kh5?? (41.Rh5 Rg8+/–) 41...Rg8 (better is 41...Rf4 42.Bf4 Nf4 43.Kg5 Nd5 44.ed5 Re5 45.Kf4 Rd5 46.Rc7 Kf6+=) 42.e5?? (better is 42.Kg4+/–) 42...Nf8 (42...Kh8 43.Rc7 Rc7 44.f5 Rh7 45.Bh6 Nf4 46.Kh4 Rh6) 43.Bf2 (43.Bf2 Kh8 44.Rc7 Rf5 45.Kh4 Rf4 46.Kh3 Rf3 47.Kh2 Rf2 48.Kh1–+) 1–0. Gelashvili,Tamaz (2575) – Babaev,Rashad (2445), Baku op–A, 2005. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.Be2 d6 6.c4 e5 7.d3 Nbd7 8.0-0 Re8)

9.Qc2 b6 10.Nbd2 (10.Nc3 a6=) 10...Bb7 11.a4 a5 12.ba5 (12.b5 e4 13.de4 Ne4 14.Bg7 Kg7=) 12...Ra5 13.Bc3 (13.Nb3 Ra6=) 13...Ra8 (13...Ra6 14.a5=) 14.a5 ba5 15.Ba5 (15.Rfb1 Nc5 16.Ba5 e4=) 15...e4=+ 16.Nd4 Nc5 (better 16...ed3 17.Bd3 Nc5=+) 17.Nb5 (better 17.Bc3!?=) 17...ed3-/+ (worse 17...Nd3 18.Bc7 Qd7 19.Ra8 Ra8 20.Bd6+– (worse 20.Bd3 ed3 21.Qb3 Ne8=+)) 18.Bd3 Re7 (better 18...Ng4!? 19.Ra3 Qg5-/+) 19.Bc3= Re8 ½–½. Hilbert,Stephan_Joerg (1835) – Beilfuss,Wilfried (2190), World Senior Teams +50, 2016.

9.Qc2 c6 10.Nc3 a6 (10...Qe7 11.a3=) 11.Nd2 (11.Ne4 Qe7=) 11...d5 12.cd5 cd5 13.Na4 (13.Rac1 Qe7=) 13...d4 (13...Qe7 14.a3=) 14.Rac1 (14.Bf3 Nb6 15.ed4 ed4) 14...Nd5= 15.Bf3 (15.Qb3 N7f6 16.ed4 ed4=) 15...de3 (15...Nb4 16.Qb3 Qe7 17.Rfe1 de3 18.fe3=) 16.Bd5 ed2 17.Qd2 Nf6 18.Bb3 (18.Bf3 e4 19.Be2 Bf5=) 18...e4 (18...Bf5 19.Rfe1=) 19.Qf4 ed3 20.Rc7 Be6 21.Be6 Re6 22.Nc5 (22.Rb7 d2 23.Nc3 Qd3–+) 22...Re7 23.Re7 Qe7 24.Nd3 Rd8 25.Qf3 (25.Bf6 Bf6 26.Qf3=) 25...h6 (25...Qe4 26.Ne1=+) 26.h3 (26.Re1!? Qd6 27.Nc5) 26...Qe4= 27.Qe4 Ne4 28.Bg7 Kg7 29.Rd1? (better is 29.Nc5!? Rd4 30.Rb1=) 29...Nc3-/+ 30.Rd2 Rd4 (30...Na2 31.Ra2 Rd3 32.Kf1–+) 31.f3 Nd5–+ (32.Kf2 Nb4–+) 0–1. Gagnon,Mark – Yermolinsky,Alex (2565), National op Las Vegas, 1996.

9.Qc2 Qe7 10.Nc3 c6 11.Rfd1 Nf8 12.a3 Nh5 13.d4 e4 14.Nd2 Nf6 15.d5 cd5 16.Nd5 Nd5 17.cd5 Bb2 18.Qb2 Bd7 19.Rdc1 Qe5 20.Qe5 Re5 21.Rc7 b5 22.Nb3 Rd5 23.f4 h5 24.h3 g5 25.fg5 h4 26.g6 fg6 27.Rf1 Rg5 28.Rf8 Rf8 29.Rd7 Rg3 30.Rd6 Re3 31.Nd4 Kh7 32.Rd7 Kh6 33.Rd6 Ra3 34.Re6 Ra1 35.Kh2 Rf4 36.Bb5 e3 37.Nf3 Rb4 38.Bd3 Rb6 39.Re3 Ra4 40.Re7 a5 41.Ne5 Rd4 42.Bc4 Rd1 43.Bg8 Rf1 44.Nf3 g5 45.Bh7 1–0. Boensch – Rossmann, Salzwedel, 1982.

9.Nc3 a5 10.a3 e4 11.de4 Ne4 12.Qc2 Qf6 13.Nd4 (13.Ne4 Less advisable is 13...Qb2 14.Qb2 Bb2-/+) 13...Nc3 14.Bc3 Ne5 15.Nb5 White threatens to win material: Nb5xc7 15...Qe7 16.Rfd1 Be6 Black threatens to win material: Be6xc4 17.Bb2 (17.ba5 Red8 18.f4 Nc6=) 17...f5 18.Rab1 (18.Nd4 Bf7=) 18...ab4=+ 19.ab4 Qf7 20.Rbc1 Ra2 21.Nc3 Ra6 22.Nb5 Rea8 23.f4 White threatens to win material: f4xe5 23...Nc6 24.Bg7 Qg7 25.Qc3 Qf7 26.Rd2 Ra4 Black threatens to win material: Ra4xb4 27.Rb2 Qe7 28.Bf3 Nd8 29.Rd1 Bf7 30.Rbd2 Nc6 31.Bd5 (better 31.Rb2!?= would allow White to play on) 31...Rb4-/+ 32.Nd4 Rb6 (better 32...Rba4 33.Nb5 Na7-/+) 33.c5+= White threatens to win material: c5xb6 33...Bd5? (better 33...Rba6 and Black could well hope to play on 34.cd6 cd6 (34...Qd6?? 35.Bf7 Kf7 36.Nf5 gf5 37.Rd6 cd6 38.Rd6+-) 35.Bf7 Qf7+=) 34.cb6+- Nd4 (34...cb6?? the pawn is indigestible 35.Nf5! Decoy: f5 35...gf5 36.Rd5+-) 35.bc7 (35.Qd4?! c6=; 35.ed4?! cb6 36.Rc2 Qe4=) 35...Rc8 36.Qd4 (36.ed4?! Rc7 37.Qa3 Rc4+=) 36...Bc6 37.Qd6 Rc7 38.Qe7 Re7 39.Kf2 Kf7 40.h3 Rc7 41.g4 Ke7 42.Rc1 Ke6 43.gf5 Kf5?? shortens the misery for Black (43...gf5 44.Rc5 Rf7+-) 44.Rd6 (44.Rd6 b6 45.Rcc6 Rc6 46.Rc6+-) 1-0. Venkata Ramana,J (2070) - Kaustuv,K (2365), 2nd Hyderabad Open, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.d3 d6 6.e3 e5 7.Be2 Nbd7 8.0-0 Re8)

9.Nc3 a6 10.Qc2 b6 11.Nd2 Bb7 12.Bf3 c6 13.Nce4 Ne4 14.Ne4 Bf8 15.Rfd1 d5 16.cd5 cd5 17.Nc3 Nf6 18.Qb3 Pawn d5, live or die! 18...Qd7 19.d4 e4 20.Be2 Bd6 21.Rdc1 b5 22.a4 Bc6 23.ab5 ab5 24.Ra8 Ra8 (24...Ba8? 25.Bb5 (25.Nb5?! Bb8+/-) 25...Qd8 26.Be8 Ne8 27.b5+- (27.Nd5 Bd5 28.Qa4 Qb8=+)) 25.Ra1 Rb8 26.Ba3 h5 27.Qd1 Kg7 28.Qf1 Rb7 29.Nb1 (29.Ra2 Bc7=) 29...Qe7 30.Qe1 h4 31.Qc3 Qc7 32.h3 Qd7 33.Nd2 Bb8 34.Rc1 Rb6 35.Bb2 Qd6 36.Nf1 Bd7 37.Qc5 (37.Qb3 Ra6=) 37...Qe6 (37...Rc6 38.Qd6 Bd6 39.Rc6 Bc6 40.Bc3=+) 38.Qc2= Ne8 39.Qd1 Nd6 40.Ra1 (40.Bg4 Qe7=+) 40...Nc4=+ 41.Bc3 Qe7 42.Ra8 Be6 43.Qa1 Qb7 44.Ra2 Rc6 45.Be1 Qc8 46.Ra8 Nb6 47.Ra6? (better 47.Rb8!? Qb8 48.Bb5=+) 47...Rc1-+ 48.Qa2 Re1 49.Rb6 Qc7 50.Rb8 Qb8 51.Qd2 (51.Qb2 Qb7-+) 51...Rb1 52.Qc3 (52.Qc2 Rb4 53.Qc3 Qd6-+) 52...Qd6 53.Bb5 Qb4 54.Qb4 Rb4 55.Ba6 Rb6 56.Be2 Rb2 57.Ba6 Rb1 58.Be2 (58.g3 hg3 59.h4 gf2 60.Kf2 Bh3-+) 58...Re1 (58...Bc8!? 59.Kh2-+) 59.Ba6 Kf8 (59...Ra1 60.Bb5-+) 60.Kh2 (60.g4 hg3! 61.h4 Bh3 62.fg3 Bf1 63.Bf1 Re3-+) 60...Ra1 61.Bb5 Rb1 62.Ba6 Rb6 63.Be2 Rb2 64.Ba6 Rf2 65.Kg1 Ra2 66.Bb5 (66.Bb7 Rc2-+) 66…Ke7 0-1. Jaehn,M (2055) - Pancevski,F (2515), 19th Burgdorf Open, 2020. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0 Nbd7)

9.Nc3 e4 10.de4 Ne4 11.Qc2 Nc3 12.Bc3 Bc3 13.Qc3 Qf6 14.Qf6 Nf6 15.Nd4 Bd7 16.Rfc1 a5 17.a3 Ne4 18.f3 Ng5 19.e4 (19.Kf2 Ne6+=) 19...Ne6 (19...f5 20.ef5 c5 21.bc5 dc5 22.Ne6 Be6 23.fe6 Ne6 24.Rcb1=) 20.Nb3 (20.Ne6 Be6 21.b5 b6=) 20...a4 21.Nd2 Nd4 22.Bd3 c5 (22...Nb3 23.Nb3 ab3 24.Rc3=) 23.bc5 (23.Rab1 Rab8=) 23...dc5= 24.Rab1 Bc6 25.Kf2 (25.Rd1 f5=) 25...Rad8 26.Rc3 Kg7 27.Rb6 f5 28.ef5 (28.Bb1 Kf7=+) 28...Nf5 (28...gf5 29.Nf1=+) 29.Ne4= Re5 30.Ng3 (30.Bc2 Nd4=) 30...Nd4 (30...Ng3!? 31.hg3 h6=+) 31.Be4= Rd7 32.Re3 Kf6 (32...Rde7!? 33.Rd3 R5e6=) 33.f4 (33.Bc6 Nc6 34.Ne4 Kf5 35.Rb7 Rb7 36.Nd6 Ke6 37.Nb7 Kd7+/-) 33...Ree7+= 34.Bc6 bc6 (34...Nc6 35.Ne4 Kf7 36.Nc5 Rd2 37.Ke1 Rg2 38.Re7 Ne7 39.Na4+/-) 35.Ne4+/- Kf5 36.Nc5 Kf4? (better 36...Re3 37.Ke3 Nc2 38.Kf3 Nd4 39.Kf2 Re7+=) 37.g3 Kf5 (37...Kg4 38.Nd7 Rd7 39.Re4 Kf5 40.Rf4 Ke5 41.Ra6+-) 38.Nd7 Rd7 39.Rd3 (39.Ra6!? Nc2 40.Rf3 Ke5+-) 39...Ke4 40.Re3 Kf5 41.h3 (41.Ra6 Nc2 42.Rf3 Ke5 43.Ra5 Ke6 44.Ra4 Rd2 45.Kg1 Rd1 46.Rf1 Rd3+-) 41...Nc2 42.Rf3 Ke4 43.Rf4 Kd3 (better 43...Ke5 44.Rc6 Rd2 45.Kg1 Rd1 46.Kg2 Rd2 47.Rf2 Rf2 48.Kf2 Kd4+-) 44.Rc6 Kc3 45.c5 (better 45.Rf3!? Kb2 46.Rb6 Ka2+-) 45...Rd2 46.Kf3 (better 46.Kg1!? Rd1 47.Kg2 Rd2 48.Rf2 Rf2 49.Kf2+-) 46...Nd4+/- 47.Rd4! Rd4 (47...Kd4 48.Rd6 Skewer; 47...Rd4 48.Rb6 Combination) 48.Rc8 (48.Rc7 Rc4+/-) 48...Kb3 49.c6 Ka3 50.c7 Rc4 51.Ke3 Ka2 52.Kd3 Rc1 53.Kd4 a3 54.Kd5 Ka1 55.Kd6 a2? (better 55...Rd1 56.Ke6 Rc1+=) 56.Rb8+- Rd1 57.Ke6 Rc1 58.c8Q (58.Kd7 Rd1 59.Ke7 Re1 60.Kf7+-) 58...Rc8 59.Rc8 Kb2 60.Rb8 (60.Rb8 Kc3 61.Ra8+-) 1-0. Hjartarson,J (2525) - Daniel,Damian (2185), Titled Tuesday, 2021. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3 Nbd7)

9.Nc3 e4 10.de4 (10.Ne4 Ne4 11.Bg7 Nf2 12.Rf2 Kg7+=) 10...Ne4 11.Qc2 Nc3 12.Bc3 Bc3 13.Qc3 Qf6 14.Qf6 Nf6 15.Nd4 Re7 (15...Ne4 16.Bd3 f5 17.Be4 Re4 18.c5+=) 16.Bf3 Nd7 17.Rfc1 White prepares the advance c5 17...Kf8 18.Rab1 Ne5 19.c5 dc5 20.Rc5 c6 21.Be2 Nd7 22.Rc2 a5 23.a3 ab4 24.ab4 Ke8 25.h3 Kd8 26.Kh2 f6 27.g3 Nf8 28.b5 cb5 29.Nb5 Bf5 30.Rd1 Rd7 31.Rcd2 Ke7 32.Nd4 Be4 33.Bb5 Rdd8 34.f3 Bd5 35.Nf5 gf5 36.Rd5 Ra2 37.Kg1 Rd5 38.Rd5 Ra1 (38...b6 39.Rf5 Ra5 40.Rd5+/-) 39.Kf2+/- Ra2 40.Be2 Ke6 (40...Ne6 41.Rf5 Ng5 42.h4+/-) 41.Rb5 Nd7 42.Rb7 Nc5 43.Rb1 (43.Rh7?! Nd3 44.Kf1 Ra1 45.Kg2 Ra2=) 43...Kf7 44.Rd1 Kg6 45.Kf1 Ra3 46.Rd5 Ra1 47.Kf2 Rc1 48.Bd1 Rc3 49.Ke2 Ne6 50.Kd2 Ra3 (50...Rc5 51.Bb3+-) 51.Bc2 Ng7 52.g4 Ra1 53.Bf5 Nf5 54.Rf5 Ra2 55.Kd3 Ra3 56.Ke2 Ra2 57.Kf1 Rh2 58.Rh5 Ra2 59.h4 Rh2 60.Kg1 Ra2 61.Rd5 Ra7 62.Kg2 Ra3 63.e4 Ra6 64.Kg3 Ra7 65.Kf4 White plans g5 65...h6 66.Rd6 (66.h5 Kf7+-) 66...Kg7 (66...Kf7 67.Kf5 Ra5 68.Rd5+-) 67.g5 (better 67.Kf5 Ra5 68.Rd5+-) 67...fg5 68.hg5 Rf7 69.Kg4 hg5 70.Rd3 (70.e5!? Rf4 71.Kg5 Rf3 72.Rd7 Kf8+-) 70...Kg6+/- 71.Rd6 Kg7 72.Kg3 (72.e5 Rf4 73.Kg5 Rf3 74.Rd7 Kf8+-) 72...Rf8 73.Ra6 Rf7 (73...Rf4 74.Kf2+/-) 74.Ra2 (74.Kg4 Rf4 75.Kg5 Rf3 76.Ra7 Kf8+-) 74...Kg6 75.Rg2 Ra7 76.Kh2 Kf6 77.Rb2 Kg6 78.Rg2 Kf6 79.Rd2 Kg6 80.Kg2 Rf7 81.Rd1 Rf8 82.Rg1 g4 83.fg4 Rf4 84.Kg3 Re4 85.Rb1 Ra4 86.Kh4 Ra6 87.Rb8 Rc6 88.Rg8 Kh7 89.Rg5 Rh6 90.Kg3 Ra6 91.Re5 Kg6 92.Kh4 Rb6 ½-½. Pimpalkhare,Vedant (2065) - Hirneise,J (2375), Silver Lake Open, 2019. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 Nbd7 7.0-0 e5 8.d3 Re8)

9.Nc3 Nf8 10.a4 c6 11.a5 h5 12.d4 e4 13.Nd2 d5 14.Qb3 a6 15.cd5 cd5 16.Rfc1 Bg4 17.Bg4 hg4 18.Na4 Ne6 19.Nb6 Rb8 20.Rc2 Nc7 21.Rac1 Na8 22.Nc8 Bf8 23.Ba3 Kg7 24.Na7 Qd6 25.Rc3 b5 26.Nc6 Rbc8 27.Ne5 Qb8 28.Ne4 Ne4 29.Qd5 The mate threat is Qxf7 29...Nd6 30.Bb2 (better is 30.Nd7 Rc3 A) worse is 31.Rc3 Qd8 32.Nf8 Nc4 (32...Rf8?! 33.Rc6 Nc4 34.Qd8 Rd8 35.Bc1+=) 33.Qd8 Rd8+=; B) 31.Nb8+/–) 30...Rc3= 31.Rc3 Qb7 (31...f6 32.Nd3+= (worse is 32.Ng4 Nc4-/+)) 32.Qb7 Nb7 33.d5 (33.Nd3 Rd8=) 33...Kg8 (33...Bb4 34.Rc6 Na5 35.Ra6+=) 34.Ng4= Bg7 35.Rc2 Bb2 36.Rb2 Kg7 37.Rc2 f5 38.Rc6 fg4 The passed pawn on e3 will quickly become a dangerous weapon 39.Ra6 Kh6 40.f3 Rd8 41.Kf2 Nd6 42.e4 Nc7 43.Rb6 Nc4 44.Rb7 Rd7 45.a6 Nd6 46.Rb6 gf3 47.gf3 Na8 48.Rc6 Nc4 49.f4 Ra7 50.Kg3 Nc7-/+ 51.d6 Na6 52.d7 Rd7 Theme: Deflection from a6 53.Ra6 Kh5 54.h3 Rd3 55.Kg2 Rb3 56.Ra8 Threatening mate: Rh8 56...Kh6 57.Rh8 Kg7 58.Rd8 Rb4 59.Rd3 0–1. Hoch,Hubertus (2320) – WD (2000), remoteschach.de, 2004.<

9.Nc3 Nf8 10.Qc2 c6 11.b5 c5 12.Nd2 Ne6 13.Nde4 Rf8 14.Nf6 Bf6 15.Nd5 Bg7 16.Rae1 Nc7 17.Bf3 Be6 18.Nc7 Qc7 19.Rc1 g5 20.d4 g4 21.Bd5 cd4 22.Be6 fe6 23.ed4 ed4 24.Qe4 e5 25.Qg4 Rf6 26.Qe4 Raf8 27.Qd5 Qf7 28.Qf7 R8f7 29.Rc2 b6 30.f3 Rc7 31.Ba3 Bh6 32.Rd1 Kf7 33.Kf2 Ke6 34.Ke2 Rf8 35.Kd3 Rfc8 36.Bc1 Bg7 37.Bd2 Bf6 38.Rdc1 Rg8 39.g3 h5 40.Ke4 h4 41.Be1 Bg5 42.f4 Bh6 43.Bd2 Rh7 44.Rg1 (worse is 44.gh4 Rg4 45.Rf1 Rh4-/+) 44...Bf4 45.Bf4 ef4 46.g4 Rf7 47.Rf2 Rg5 48.Kd4 f3 0–1. Zainullina,Nataliya (2175) – Skalozubov,Alexander (2235), Serpukhov–F, 2003. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.c4 d6 6.d3 e5 7.Be2 Re8 8.0-0 Nbd7)

9.Nc3 Nf8 10.Nd2 h5 11.a4 Bf5 12.a5 a6 13.Bf3 (better is 13.Nde4!?+=) 13...Bd3+= 14.Bb7 Rb8 (worse is 14...Bf1 15.Ba8 Qa8 16.Qf1+=) 15.Bc6 Bf1 (worse is 15...Rb4 16.Ba3 Rb8 17.Be8 Qe8 18.Re1=) 16.Qf1 Rb4 17.Ba3 Rb8 18.Nd5 Re6 19.Nf3 Ne4 (better is 19...e4 20.Nd4 Re5–+) 20.Nb4+= Nc5 21.Bd5 Qf6 22.Nc6 Rb3 23.Bc5 dc5 24.Nd2 (24.Be6 Qe6 (worse is 24...Ne6 25.Nce5 Ng5 26.Rc1+=) 25.Qd1 e4 26.Qb3 Ba1–+) 24...Rb2 25.Ne4 Qf5 26.Qc1 (26.Be6?! Qe6 27.Nd8 Qf5=) 26...Rb4 27.Be6 Qe4 28.Bd5 Qd3 29.Nb4 cb4 30.Qd1 e4 31.Qd3 ed3 32.Rb1 d2 33.Kf1 Nd7= 34.Ke2 Bc3 35.Kd1 Nc5 36.Kc2 Kf8 37.f4 f5 38.g3 Ke7 39.h3 Kf6 40.Rg1 Na4 41.Bf3 Nb2 42.Be2 d1Q 43.Bd1 Nc4 44.Be2 Na5 45.Rd1 Ke6 46.Ba6 Bg7 47.Bc8 Kf6 48.Rd7 Nc4 49.Rc7 Ne3 50.Kb3 Bf8 51.Rc1 Nd5 52.Rc6 Ke7? 53.Be6 Nc3 54.Rc7?? Kf6 55.Bc4 Be7 56.Bd3 Ke6 57.Rc6 Kf7 58.g4 hg4 59.hg4 Bf8 60.Bc4 Kg7 61.Rc7 Kh8 62.Rf7 Bd6 63.gf5 gf5 64.Rf5 Ne4 65.Bd5 Nc5 66.Kc2 Kg7 67.Rf7 Kg6 68.f5 Kg5 69.Be6 Be5 70.Rc7?? b3 71.Bb3 Nb3 72.Kb3 Bf6 73.Kc4 Kf5 ½–½. Gubajdullin,Alexey (2440) – Bragin,Alexander (2395), Volga Cup op, 2008. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8 8.d3 Nbd7)

9.Nbd2 a5 10.a3 c6 11.Qc2 Qe7 12.Nb3 ab4 13.ab4 Ra1 14.Ra1 e4 15.de4 Ne4 16.Bg7 Kg7 17.Bd3 Ndf6 18.Nfd4 (18.h3 c5+=) 18...c5= 19.bc5 dc5 20.Nb5 Qe5 (20...Rd8 21.Be2=) 21.f3 Nd6 22.Nd6 Qd6 23.e4 Nd7 24.Be2 b6 25.Qb2 Qf6 26.Qf6 Nf6 27.Kf2 Be6 28.Ra6 Rb8 29.Nd2 Bc8 30.Ra7 Rb7 31.Ra8 Rc7 32.Nb1 Be6 33.Nc3 Rc8 34.Ra7 Rb8 35.Ke3 Nd7 36.f4 Kf8 37.g4 Re8 38.Nb5 Nf6 39.Nd6 Re7 40.Ra8 Kg7? (better is 40...Ne8+/–) 41.g5+– Ne4 42.Ne4 (42.Ke4?? Bc4 43.Kf3 Bd5 (43...Be2?! 44.Kf2+=) 44.Kf2 Ba8–+) 42...Bf5 43.Bd3 Be4 (43...h6 44.Kf3 hg5 45.fg5+–) 44.Be4 f5 (44...h6 45.Rb8 Ra7 46.gh6 Kh7 47.Rb6+–) 45.gf6! Kf6 46.Rc8 1–0. Jirovsky,M (2455) – Lechtynsky,J (2365), Extraliga Ostrava CZE, 1999. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Nbd7 8.d3 Re8)

9.Nbd2 c5 10.bc5 Nc5 11.d4 Nce4 12.de5 Nd2 13.Qd2 (13.Nd2?! de5 14.Qc2 Qc7=) 13...Ne4 14.Qd1 (14.Qd5 Nc5 15.Rfd1 Bg4+–) 14...Bg4 (better is 14...Bf5!?=) 15.Qc2+/– Bf5 16.Qb3?? (better is 16.g4 Ng3 17.gf5 Nf1 18.Rd1+–) 16...de5= 17.Rfd1 (17.Qb7? Rb8 18.Qa7 Rb2–+) 17...Qc7 18.Nh4 Nc5 19.Qa3 Be6 20.Nf3 b6 21.Ng5 Bf5 22.g4 Bc2 23.Rd2 Ne4 24.Ne4 Be4 25.f3 Bb7 26.Rad1 Bc6 27.Qd6 Qd6 28.Rd6 Ba4 29.R1d2 Bf8 0–1. exp2005 – alek1, kurnik, 2011.

9.Nbd2 d5 10.cd5 Nd5 11.a3 b6 12.Qb3 Bb7 13.Ne4 Re7 14.Rac1 Nf8 15.Rc2 h6 16.Rfc1 Rc8 17.Ned2 Kh7 18.d4 ed4 19.Bd4 Ne6 20.Bg7 Kg7 21.Qb2 Nf6 22.Ne5 c5 23.Rd1 h5 24.Ndc4 Qc7 25.Rcd2 Rd8 26.Rd8 Nd8 27.bc5 bc5 28.Rd6 Ne6 29.g4 Nd4 30.ed4 Ne4 31.dc5 f6 32.Nd3 Nd6 33.Nd6 Qc6 34.Nb7 Rb7 35.Qc2 Qe4 36.Bf1 Qg4 37.Bg2 Re7 38.h3 Qf5 39.c6 Kh8 40.Qc5 Re4 41.Kh2 1–0. Smolensky – Maksymenko, corr 1974–76.

9.Nbd2 e4 10.de4 Ne4 11.Bg7 Kg7 12.Ne4 Re4 13.a3 Qf6 14.Qc2 Re7 15.Rad1 a5 16.Qd2 ab4 17.ab4 Ne5 18.Ne5 Qe5 19.b5 b6 20.Qd4 Ra2 21.Bd3 Qd4 22.ed4 Bf5 23.Bf5 gf5 24.Rc1 Rb2 25.Rb1 Ree2 26.Rb2 Rb2 27.Rc1 f4 28.d5 Kf6 29.f3 Ke5 30.Re1 Kd4 31.Re4 Kd3 32.Rf4 Rc2 33.Rf7 Rc4 34.Rh7 Kd4 35.Rh4 Kd5 36.Rc4 Kc4 37.h4 Kd5 38.g4 Ke5 39.Kf2 1–0. Machete99 (2220) – Uriel_Zak (2265), ICC, 2002.

9.Nbd2 Qe7 10.b5 Nc5 11.Nb3 Na4 12.Qc2 Bf5 13.e4 Bg4 14.Rac1 Nb2 15.Qb2 Nh5 16.g3 Qd7 17.Nh4 Bh3 18.Rfe1 Bh6 19.Rcd1 Ng7 20.Ng2 Ne6 21.Ne3 Rf8 22.Bf1 Bf1 23.Nf1 f5 24.ef5 Ng5 25.Re2 Qf5 26.h4 Nf3 27.Kg2 Qg4 28.Nh2 Nh4 29.Kh1? Qh3 30.gh4 Bf4 (31.f3 Bh2–+) 0–1. Rebber,Christian – Schmedders,Hans Gerd (2245), Recklinghausen op, 1999.

9.Nbd2 Ng4 10.Qb3 Qe7 11.Rac1 c6 12.h3 Nh6 13.Ne4 White plans c5 13...f5 (13...Nf6!?+=) 14.c5+/– d5 15.Nd6 Rd8 16.e4 Nb6 17.Nc8 (17.ef5 gf5 18.d4 e4+/–) 17...Nc8+= 18.Rfe1 Nf7 19.Bd1 (19.ef5 gf5 20.b5 cb5 21.Qb5 Qd7+=) 19...fe4= 20.de4 d4 21.Be2 Bf6 22.Bc4 Kg7 23.g3 Ng5 24.Ng5 Bg5 25.Rcd1 b5 26.Bd3 (26.cb6 Nb6 27.Be2 Rab8=) 26...Qf6 (26...a5 27.a3+=) 27.Bc2 Qf7 28.f4 Bf6 29.Qf7 Kf7 30.Rd3 a5 31.a3 Ne7? (better is 31...Ke7!?=) 32.Red1 ab4 33.ab4 g5 34.Bb3 Ke8 35.fe5 Be5 36.Rf1 (36.Kf2 h5+–) 36...Ng6 37.Rf5 Bh8 38.Kg2 Ra7 39.Rg5 Bf6 40.Rf5 Bg7 41.e5 Ne5 (41...Ne5 42.Bd4 Decoy (42.Bd4 Interception); 41...Be5 42.Bc1 Decoy) 42.Rd4 Rd4 43.Bd4 Nd3 44.Bg7 Rg7 45.Bd1 Nb4 46.Bf3 Kd7 47.Rf6 Re7 48.Rh6 Nd5 49.Bd5 cd5 50.Rb6 Kc7 51.Kf2 b4 52.g4 Re4 53.g5 Rc4 54.Kg3 Rc5 55.Rb4 Rc3 56.Kg4 Rc4 57.Rc4 dc4 ½–½. Csom,Istvan (2490) – Kristiansen,Jens (2405), EU–Cup Gr2 Montana Crans, 1976. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0 Nbd7)

9.Nbd2 Nh5 10.Qb3 Nf8 11.Rfc1 f5 12.c5 Be6 13.Qc2 Rc8 14.cd6 cd6 15.Qa4 a6 16.Rc8 Bc8 17.Rc1 f4 18.e4 Ne6 19.Qa5 Qe7 20.Nc4 b5 21.Nb6 Bb7 22.a4 ba4 23.Bd1 Rf8 24.Nd5 Bd5 25.Qd5 Nf6 26.Qa2 Kh8 27.Ba4 Ng4 28.h3 Nh6 29.Bb3 Ng5 30.Ng5 Qg5 31.f3 Qh4 32.Qa6 Qf6 33.Rc8 g5 (33...Ng8 34.b5+–) 34.Rf8 Bf8 35.Qc8 Kg7 36.b5 g4 37.hg4 Nf7 38.Qf5 1–0. Boensch,Uwe – Jakat, Plauen_29th_DDR_Chpp, 1980. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d3 e5 7.Be2 Nbd7 8.0-0 Re8)

9.Nbd2 h6 10.Qc2 Nf8 11.a4 g5 12.Ne4 N6h7 13.b5 f5 14.Nc3 g4 15.Nd2 Ng5 16.Rfe1 Nfe6 17.a5 h5 18.a6 ba6 19.Nb3 f4 20.ef4 Nf4 21.Bf1 h4 22.Nd5 Nd5 23.cd5 ab5 24.d4 e4 25.Rec1 Rf8 26.Qc6 Qf6 27.Qa8 Qf2 28.Kh1 Nh3 29.gh3 g3 30.hg3 hg3 31.Bg2 Bh3 32.Qf8 Bf8 33.Rg1 Qb2 34.Rae1 Bg2 35.Rg2 Qb3 36.Reg1 Qf3 (36...Qf3 37.Rc1 Bh6 38.Re1 Be3 39.Re3 Qf1 40.Rg1 Qh3). Nasibullin,Valerij R – Lybin,Dmitry Vitalievich, USSR clubs ch, 1991. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.0-0 Re8)

9.Nbd2 h6 10.Qc2 Nf8 11.c5 g5 12.cd6 cd6 (worse is 12...Qd6 13.Be5 Qb4 14.Bc7+/– (14.Qc7?! Nd5 15.Qc4 Re5=)) 13.Ne4 Nd5 14.Qa4 Be6 15.Ng3 b5 16.Qa5 Qa5 17.ba5 f5 18.Nh5 Rec8 19.Rfc1 Bh8 20.Nd2 Nd7 21.g4 Nb4 22.gf5 Bf5 23.Ne4 d5 24.Nd6 Rc1 25.Rc1 Bd3 26.Bg4 Nf6 27.Be6 Kf8 28.Rc7 Bg6 29.Ng3 (better is 29.Ba3 Ne8 30.Bb4 Nc7 31.Nb5 Ke8 32.Nc7 Kd8 33.Na8 Bh5 34.Bd5+–) 29...Bc2?? (29...Ne8 30.Ne8 Re8= (30...Be8?? 31.Ba3 Bg6 32.Bb4 Ke8 33.Bd5+–)) 30.Rc5 (better is 30.Rf7 Kg8 31.Be5+–) 30...Nh5?? (better is 30...Ke7 31.Nb5 Ke6 32.Nc7 Kd6 33.Rc2 Nc2 34.Na8 h5–+) 31.Nb7 Ke8? 32.Rc7 (32.Rc7 Bg6 33.Ba3+–) 1–0. Babujian,L (2485) – Petrosian,Davit Gevorgi (2435), Mumbai IND, 6th Mayors Cup, 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0 Nbd7)

9.Nbd2 h6 10.Qc2 g5 11.Ne4 Nf8 12.Nfd2 Ng6 13.Ng3 Qe7 14.d4 Nh4 (14...ed4 15.Bd4 c5 16.bc5 dc5 17.Bb2+=) 15.Bd3 (15.a3 a5+=) 15...Bd7 (15...ed4 16.Bd4 c5 17.Bf6 Bf6 18.Rab1+=) 16.b5 a6 17.a4 ab5 18.de5 de5 19.cb5 c6 20.Ba3 Qd8 21.Nde4 Ne4 22.Ne4 cb5 23.ab5 Qb6 (23...Bf5 24.Rfd1+=) 24.Bc5+– Qe6 25.Ra8 Ra8 26.Bb4 (26.Nd6 Ra2 27.Qd1 Qg4 28.Qg4 Bg4+–) 26...Rc8 (26...Ng2!? 27.Qc7 Nh4 28.Qb7 Nf3 29.Kh1 Qh3 30.Qa8 Bc8 31.Qc8 Qc8=+) 27.Qd1 (27.Qd2 Be8+–) 27...Bf8 28.Bf8 Kf8 29.Be2 Kg7 30.Nd6 Rc7 31.Qd2 (31.g3 Ng6+=) 31...b6 32.Rd1 (32.f4 ef4 33.ef4 Nf5 34.Nf5 Qf5 35.Qd4 Qf6 36.Qf6 Kf6 37.fg5 Kg5 38.Rf7 Kg6+–) 32...Bc8 (32...Nf5 33.Nf5 Qf5 34.h3+=) 33.g3 (better 33.e4 Rc5 34.Qe1+– (worse 34.Nc8 Rc8 35.Qd6 Qd6 36.Rd6 Rb8+–)) 33...Ng6? (better 33...Nf5+=) 34.Bg4!+– (34.Nc8?! Rc8 35.Qd6 Nf8+=) 34...Qg4 35.Ne8 Kh8 36.Qd8 Qd1 (36...Qf3 37.Nc7 Kh7 38.Qc8 Qd1 39.Kg2=) 37.Qd1 Rd7 (37...Rc5 38.Qd8 Kh7 39.Qf6 Rc1 40.Kg2 Bb7 41.f3 Rc2 42.Kf1 Rc1 43.Kf2 Rc2 44.Ke1 Rc1 45.Kd2 Rd1 46.Kd1 Bf3 47.Kd2 Nf4 48.Qg7) 38.Qh5 (38.Qh5 Kh7 39.Nf6 Kg7 40.Nd7 Bd7 41.Qe2+–) 1–0. Acosta,Pablo Ismael (2430) – Di Berardino,Diego Rafael (2525), 2rd Buenos Aires ARG. Copa Mercosur, 2018. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0 Nbd7)

9.Nfd2 c6 10.a4 a5 11.ba5 Qa5 12.Nb3 Qc7 13.a5 Nc5 14.N1d2 Nfd7 15.Qc2 f5 16.Rfb1 Ne6 17.Bf1 Ndc5 18.Bc3 Rf8 19.d4 Nb3 20.Nb3 f4 21.de5 fe3 22.fe3 de5 23.Bd3 Qe7 24.Rf1 Qg5 25.Rae1 Bd7 26.Bb4 Rf1 27.Bf1 Bf8 28.Qd2 Rd8 (28...Bb4 29.Qb4 Rf8 30.c5= (30.Qb7?? Qf6 31.h3 Qf2 32.Kh2 Ng5–+)) 29.Bf8+= Nf8 30.Nc5 Bc8 31.Qb4 Qe7 32.Rb1 Qg5 33.Qc3 Qe7 34.Qb4 Qg5 35.Nb7 Qe3 36.Kh1 Rd2 37.a6 Bf5 38.Ra1 Qd4 39.Qa3 Rd1 40.Rd1 ½–½. Hartoch,Robert G – Masic,Ljubomir, It Sombor, 1974. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0-0 Nbd7)

9.Nc3 c6

10.Qb3 a5 11.a3=.

10.Qb3 Qe7 11.a3 (11.Rfe1 a5=) 11...h6 (11...Nf8 12.Ne4=) 12.Rfd1 (12.h3 Nb6+=) 12...Nf8 (12...b6 13.Nd2+=) 13.d4 White intends c5 (13.h3 Qc7+=) 13...e4 (13...ed4 14.Rd4 Ne6 15.Rd3=) 14.Nd2+= h5 15.d5 N8h7 (15...Bg4 16.h3 Be2 17.Ne2+=) 16.Rac1 Bf5 17.c5 (17.h3 Rec8+=) 17...dc5 (17...Nd5 18.Nd5 cd5 19.Bg7 Kg7 20.Qd5 dc5 21.Nc4 cb4 22.ab4=) 18.d6+– Qd7 (18...Qd6 19.Nde4 Qe5 20.Nd6+–) 19.bc5 h4 20.Bf1 (20.h3 Ng5 21.Na4 Bh3 22.gh3 Qh3=+) 20...Ng5 Black prepares h3 (20...h3 21.Ne2=) 21.Ne2 (21.h3 Rab8+=) 21...Bg4 (21...Be6 22.Qa4 h3 23.f4 ef3 24.Nf3 hg2 A) worse 25.Bg2 Nf3 26.Bf3 Bg4 27.Bg4 Ng4 28.Bg7 Kg7-/+ (28...Re3?! 29.h3 Re2 30.Qg4 Qg4 31.hg4 Kg7 32.Rb1=); B) 25.Ng5 gf1B 26.Rf1+=) 22.Re1 (better 22.h3!? Bh5 23.Nc4+–) 22...h3 23.g3 (23.Nf4 hg2 24.Bg2 Nf3 25.Nf3 Bf3 26.Bf3 ef3 27.Bf6 Bf6+–) 23...Rab8 (23...b6 24.Qc4=+) 24.Bd4 (24.Qa2 b6 25.Nf4 bc5 26.Rc5 Bf5=+) 24...Nh5 (24...b6 25.Qa4 b5 26.Qc2=) 25.Qa4 (25.Bg7 Ng7 26.Qc3 b6=) 25...Bd4 (25...Nf3 26.Nf3 ef3 27.Nf4=) 26.Nd4+= Ng7 (26...Ra8 27.Rb1+=) 27.Rb1 (27.Qa7 Ra8 28.Qb6 N7e6+–) 27...Ra8 28.Rec1 (28.Qa5 Nf5+=) 28...Re5 (28...N7e6!?+=) 29.Qb4+– Rb8 30.Qb2 (30.Qc3!? f6 31.Qa5+–) 30...Ree8+= 31.Qc3 (31.a4 N7e6+=) 31...Nf5= 32.Ne2 (32.a4 Nd4 33.Qd4 Qf5=) 32...Bf3 (32...b6!? 33.cb6 Qd6 34.ba7 Ra8=) 33.Nf4+– Nh6? (33...Bg4 34.Qf6 Nh7 35.Qb2+=) 34.Bc4 (34.Qa5 Kg7+–) 34...Kh7 (34...Qf5!?+=) 35.Qf6+– Qg4 (35...Qf5 36.Qf5 Nf5 37.a4+–) 36.Bf1+– Ng8 37.Qc3 (37.Qd4 Qd7+–) 37...Nh6 (37...Qf5 38.Rb4 Nf6 39.Ra4+–) 38.Rb4+– Qd7 (better 38...b5 39.cb6 ab6+–) 39.Qf6 Qg4 (39...Qd8 40.Qd8 Red8 41.Bh3+–) 40.Rcb1 Ng8 (40...b5 41.cb6 ab6 42.Rb6 Rb6 43.Rb6+–) 41.Qb2 (41.Qc3 Qd7 42.Bh3 Nh3 43.Nh3 Qh3 44.Nf3 Qf5+–) 41...b5 42.cb6 ab6 43.Rb6 Rb6 44.Qb6 Qd7 45.Qc5 Kh6 46.Rb6 Ra8 (46...Nf6 47.Rc6 Bg4 48.Bb5+–) 47.Qc6 (47.Nc4!? Bg4 48.Ne5 Qf5 49.Ng4 Qg4+–) 47...Qc6 48.Rc6 Bg4 49.Be2 (49.Nc4 Nf6 50.Ne5 Bf5+–) 49...Bd7 (49...Be2 50.Ne2 Nf6 51.Rc3+–) 50.Rb6 (50.Rc3 Nf6+–) 50...Nf6 (50...Ra3 51.Rb1 Rc3+–) 51.f3?? (better 51.Nc4+–) 51...ef3= 52.Nf3 Nge4 (52...Nf3 53.Bf3 Ra3=) 53.Rb3 (better 53.Ne5!? Ra3 54.Rb1+=) 53...g5= 54.Nd3 Be6 55.Rb6 (55.Rb1 Ra3 56.Bf1 Nd6=+) 55...Ra3 56.Bf1 (56.Nfe1 Ra1=+) 56...Nd7 (56...Ra1 57.Rc6=) 57.Rc6 Ra1 (57...g4 58.Nd4 Ra1 59.Ne6 fe6 60.Rc7=) 58.Nf2 (58.Nd4 g4=) 58...Nec5= 59.e4 (59.Rc7 Kg6=) 59...Bc4 60.Nd2 Bb5 (60...Be2 61.Rc7=) 61.Rc7 Nb3 (better 61...Ne5!? 62.Nh3 Bf1 63.Nf1 Ne4=) 62.Ng4+– Kh5 63.Kf2 Nd2? (better 63...Rf1 64.Nf1 Kg4 65.Ne3 Kh5+–) 64.Bb5+– Ne4 65.Kf3 Ndc5 66.Nf6 Nf6 67.Rc5 Ra3 68.Ke2 Ra2 69.Kd3 (69.Ke3!? Rh2 70.d7 Nd7 71.Bd7=) 69...Rh2=+ 70.Rf5? (70.d7 Nd7 71.Bd7 Rg2=) 70...Kg6 (better 70...Rb2!? 71.Rf6 Rb5–+) 71.d7-/+ Nd7 72.Bd7 Rh1?? (better 72...Rg2 73.Rf1 Rg3 74.Ke4 Rb3-/+) 73.Rf2= h2 74.Bf5 (74.Rd2 Kf6=) 74...Kg7=+ 75.Rd2 (75.Be4 Rd1 76.Ke2 h1Q 77.Bh1 Rh1=+) 75...Rf1 76.Rh2 (76.Be4 h1Q 77.Bh1 Rh1=+) 76...Rf5 ½–½. Dmitriev,Igor (2295) – Sazonova,Anastasia (2040), Vladimir Dvorkovich Memorial, 2014. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.0-0 Re8 8.d3 Nbd7)

10.Rc1 a6 11.a4 d5 Black plans e4 (11...c5 12.Ba3=) 12.cd5+= cd5 13.Qb3 Nf8 14.d4 e4 15.Ne5 Be6 16.a5 h5 17.Na4 N6d7 18.Nd7 Nd7 19.Rc2 Qg5 20.Rfc1 h4 21.Kf1 h3 22.g3 Nf6 23.Rc7 (23.Kg1 Bg4 24.Bf1 Qh5+=) 23...Bg4= 24.Qd1 (worse 24.Rb7 Be2 25.Ke2 Ng4=+) 24...Qf5 (24...Bf8!?=) 25.Rb7+/- Rac8 (25...Reb8!? 26.Rcc7 Rb7 27.Rb7 Qh5+/-) 26.Nc5+- Bf3 (26...Bf8 27.Rb6+- (27.Na6?! Rc1 28.Bc1 Qc8=)) 27.Kg1 (27.Bf3 ef3 28.Na6 Ng4+/-) 27...Ng4 28.Qf1 Bh6 29.Rc3 (29.Ba6 Ne3 30.Qe1 Ng4-/+) 29...Rc6? (29...Be2 30.Qe2 Rc6 31.Rc2+/-) 30.Rb6?? (30.Ba6 Bg2 31.Qe1 Rf6+-) 30...Rec8?? (better 30...Be2 31.Qe2 Rb6 32.ab6 Rb8+/-) 31.Ba6+- (worse 31.Ra6 Be2 32.Qe2 Ra6 33.Na6 Nf6+-) 31...R8c7 32.Bb5 Bg2 (32...Rf6 33.Rf6 (33.Qh3?! Be2 34.Rf6 Qf6+-) 33...Nf6 34.Ba6+-) 33.Qe2 Bf3 34.Qe1 Bh1 (34...Rf6 35.Rb8 Kh7 36.a6+-) 35.Be2 (better 35.Rc6!? Qf3 36.Qf1 Rc6+-) 35...Bf3 36.b5 (better 36.Rc6 Be2 37.Qe2 (37.Rc7?? Qf3 38.Rc8 Kh7 39.Rh8 Kh8 40.Qf1 Bf1 41.Kf1 Qf2) 37...Rc6 38.a6+-) 36...Rc5? (36...Rb6 37.ab6 Rc8+-) 37.Rc5 Be2 (37...Rd7 38.Bf1 Rd8 39.Rc7+-) 38.Qe2 (38.Rc7 Qf3 39.Rg6 fg6 40.Qf1 Bf1 41.Rc8 Bf8 42.Rf8 Kf8 43.Ba3 Ke8 44.Kf1 Qf2) 38...Ra7 (38...Rc8 39.Rc8 Qc8 40.a6+-) 39.a6 1-0. Andreikin,D (2720) - Iljiushenok,I (2545), V I Zilberstein Mem, 2021. (=1.Nf3 A15: English Opening: 1...Nf6 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7)

10.Qc2 b6 11.Nd2 Bb7 12.Bf3 Qc7 13.Rfc1 a6 14.Rab1 Rac8 15.a4 d5 16.cd5 cd5 17.Qb3 Qd6 18.Ba3 Qe6 19.e4 d4 20.Qe6 Re6 21.Nd5 Bf8 22.Rc8 Bc8 23.Rc1 Bb7 24.Rc7 Bc6 25.Nf6 Nf6 26.Bd1 Bd7 27.g3 a5 28.Bb3 Rc6 29.Rc6 Bc6 30.b5 Be8 31.Bf8 Kf8 32.f4 Nd7 33.fe5 Ne5 34.Bc2 Bd7 35.Nb3 Nf3 36.Kf2 Nh2 37.Nd4 Ng4 38.Ke2 Ke7 39.Nf3 f5 40.d4 fe4 41.Be4 Nf6 42.Nd2 Be6 43.Ke3 Kd6 44.Bf3 g5 45.Bc6 h6 46.Kd3 Ba2 47.Kc3 Ke6 48.Bb7 Kd6 49.Bc6 Be6 50.Kd3 Bf7 51.Kc3 Bg8 52.Kd3 Kc7 53.Ke3 Be6 54.Kd3 Bf5 55.Kc3 Nh5 56.d5 Ng3 57.Kd4 h5 58.Nc4 h4 59.d6 Kd8 60.Nb6 h3 61.Nc4 h2 62.b6 Kc8 63.Na5 Bd7 64.Bb7 Kb8 65.Bg2 h1Q 66.Bh1 Nh1 67.Kc5 g4 68.Nc6 Kb7 69.Ne5 g3 70.a5 g2 71.Nf3 Nf2 72.Ng1 Nh3 73.Ne2 Bg4 74.a6 Ka6 75.Kc6 Be2 76.d7 Bb5 77.Kc7 g1Q 78.d8Q Qb6 0–1. Bulcourf – Morovic Fernandez, Buenos Aires 1978.

10.Qc2 Qe7 11.a4 a5 12.ba5 (12.b5 Nc5=) 12...Nc5 (12...Ra5 13.Nd2=) 13.Nd2 Ra5 14.Ba3 (14.Nce4 Bf5=) 14...Bf5 (14...Ra7 15.Bb4=+) 15.Nb3 (15.Bb4 Ra7=+) 15...Nb3 (15...Ra6 16.h3=+) 16.Qb3 Rea8 (better 16...Ra6=+) 17.d4 (better 17.Rab1!? R5a7 18.Qb6=+) 17...ed4-/+ 18.ed4 Ne4 19.Ne4 Be4 (19...Qe4 20.Bf3 Qd4 21.Qb7 Ra4 22.Rad1-/+) 20.Rfe1 (better 20.Qe3-/+) 20...Qf6 (20...Bd4!? 21.Bb2 Bb2 22.Qb2 Re5–+) 21.Bb2 (21.Bf1!? Qf4 22.Bc1=) 21...Bf3?? (better 21...c5-/+) 22.Bf3+– (worse 22.Qf3 Qf3 23.Bf3 Ra4+–; 22.gf3?! Qg5 23.Kh1 Qh4+–) 1–0. Zarkua,Davit (2430) – Ersahin,Bulent (2145), TCh–TUR, 2017. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.Be2 0-0 6.0-0 Nbd7 7.c4 e5 8.d3 Re8)

10.Qc2 Qe7 11.Rfd1 Nh5 12.b5 Nf8 13.bc6 bc6 14.Ba3 f5 15.Rab1 Ne6 16.Qa4 Qd7 17.Qa5 Nf6 18.d4 e4 19.d5 Nd8 20.Nd4 c5 21.Ne6 Ne6 22.de6 Re6 23.Nd5 Ne8 24.Rb5 Bb7 25.Rdb1 Bc6 26.Rb8 Kf7 27.g3 Bf8 28.Ra8 Ba8 29.Rb8 Bc6 30.Bd1 Bg7 31.Bb3 Bf8 32.Qa6 Bg7 33.Ba4 Ba4 34.Rb7 Nf6 35.Qa7 Nd5 36.Rd7 Bd7 37.Qd7 Ne7 38.Bc1 g5 39.Bd2 Be5 40.Ba5 1–0. Boensch – Bielczyk, Polanica Zdroj, 1978.

10.Qc2 Nf8 11.Rac1 d5 12.cd5 Nd5 13.a3 a5 14.ba5 Qa5 15.Nd2 Nc3 16.Bc3 Qa4 17.Qa4 Ra4 18.Bb4 Be6 19.Rb1 Nd7 20.Rfc1 Ra7 21.Ne4 Bf8 22.Rb2 h6 23.a4 Rea8 24.h3 Ra4 25.Bf8 Kf8 26.Rb7 Ra1 27.Rbb1 Rb1 28.Rb1 Ra2 29.Bf3 Rc2 30.Bd1 Ra2 31.Bb3 Bb3 32.Rb3 Ra1 33.Kh2 Rc1 34.g4 Nc5 35.Nc5 Rc5 36.Kg3 Ke7 37.Kf3 Ke6 38.h4 Rc1 39.Rb6 Rc3 40.h5 gh5 41.gh5 Rd3 42.Rc6 Rd6 43.Rc5 Kf5 44.Kg3 f6 45.Ra5 Rb6 46.f4 Ke4 47.fe5 fe5 48.Kg4 Rb1 49.Ra6 Rg1 50.Kh4 Rh1 51.Kg4 Rg1 52.Kh4 Rh1 53.Kg4 Rg1 ½–½. Barcza – Cobo Arteaga, Havana, 1967.

10.Qc2 Nf8 11.Rfd1 Bf5 (11...Qe7 12.a3+=) 12.Ne4 White prepares the advance c5 12...Ne6 (12...Qe7 13.a3+=) 13.c5 dc5 14.bc5 (14.Be5 Be4 15.de4 Qb6+=) 14...Nd7 (14...Be4 15.de4 Qe7 16.Bc4+=) 15.Nd6+– Nec5 16.Ne8 Qe8 17.Nd2 (17.h3 e4 18.Ne1 ed3 19.Nd3 Bd3 20.Bd3 Bb2 21.Qb2 Qe5+=) 17...e4 (17...Rd8 18.e4 Be6 19.f4+–) 18.Ne4 (18.de4 Bb2 19.Qb2 Be4 20.Ne4 Qe4+–) 18...Ne4+– 19.Bg7 Kg7 (19...Nf2 20.Kf2 Kg7 21.e4+–) 20.de4 Be4 21.Qb2 Nf6 22.Qb7 c5 23.Qc7 Bc6 (23...Qc6 24.Qc6 Bc6 25.Rac1+–) 24.Rac1 Ne4 25.Bc4 Rb8 (25...h6 26.Bf7! Rc8 27.Be8 Rc7 28.Bc6 Rc6 29.Rd7 Kf6 30.f3+–) 26.Bf7 Qc8 (26...Qf7 27.Qe5 Double attack (27.Qb8 Deflection; 27.Qb8 Overloading)) 27.Qc8 (27.Qa7?! Rb7 28.Qa3 Kf7+–) 27...Rc8 28.Bb3 Rf8 (28...Bb5 29.Rd5 Ba6+–) 29.f3 1–0. Sternik,Ryszard (1890) – Price,Eric (1700), FICGS, 2009. (=1.Nf3 Nf6 2.b4 g6 3.c4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Nbd7 8.0-0 Re8 9.Nc3 c6)

8.0-0 e4

9.Nfd2 ed3 10.Bd3 Nc6 11.a3 Ne5 12.Be2 a5 13.Nc3 Be6 14.Qc2 Qe7 15.Nb5 Nc6 16.Nd4 Bd7 17.Bc3 Nd4 18.Bd4 Ne4 19.Ne4 Bd4 20.Nc3 Bg7 21.Nd5 Qd8 22.Rac1 ab4 23.ab4 Ra3 24.Qd2 Bf5 25.b5 Qd7 26.Rfd1 Rea8 27.Qe1 Be6 28.g3 Bd5 29.cd5 ½–½. Yatsenko,Alexey (2250) – Demin,Vladimir (2250), RUS Spartakiad U18, 2003. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

9.de4 Ne4 10.Qc1 Nc6 11.Bg7 Kg7 12.Nbd2 Nd2 13.Qd2 Qf6 14.Rac1 a6 15.Rfd1 Be6 16.a3 h5 (16...Ne5 17.Nd4+=) 17.b5 Ne5 18.b6 cb6 19.Qb4 b5 (19...Rac8 20.Rd6 b5 21.c5+=) 20.cb5+/- (20.Rd6?! Nc4 21.Bc4 Rac8=) 20...ab5 21.Rd6 Nf3 (21...Rec8 22.Rcd1+/-) 22.Bf3 (22.gf3?! Rec8 23.Rc8 Rc8 24.Qb5 Rc1 25.Rd1 Bc4+=) 22...Qe5 23.h3 (better 23.Rd4!?+/-) 23...Ra4= 24.Qc3 Qc3 25.Rc3 Rc8 (25...b4!? 26.ab4 Rb4=) 26.Rc8+= Bc8 27.Rb6 (27.Rd8 Be6 28.Rd3 b6+=) 27...Ra3 28.Rb5 Ra1 (28...Ra7 29.Bd5+=) 29.Kh2+/- Ra2 30.Kg3 (30.Bb7?! Bb7 31.Rb7 Rf2=) 30...h4 31.Kh4 Rf2 32.Rc5 (worse 32.Bb7 Bb7 33.Rb7 Rg2=+) 32...Be6 33.Bb7 Re2 34.Rc3 Rb2 35.Bc6 Kf6 36.Rc1 Re2 37.Rc3 Rb2 38.Kg3 g5 39.Rc5 Rb3 40.Kf3 Rb4 41.e4 Rb3 42.Ke2 Rb2 43.Ke3 Kg6 44.e5 Rb3 45.Kf2 Rb2 46.Kf3 ½-½. Artemiev,V (2705) - Dubov,Daniil (2710), TCh-RUS Premier, 2021. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

9.de4 Ne4 10.Bg7 Kg7 11.Qd4 Qf6 12.Qf6 Nf6 13.Nc3 a5 14.a3 Na6 15.Rab1 ab4 16.ab4 c5 17.bc5 dc5 18.Rb5 Rb8 19.Rfb1 Bf5 20.R1b2 Ne4 21.Nd5 Nd6 22.Rb6 Red8 23.Nd2 Nb4 (better is 23...Ra8!?+=) 24.Nb4+/– cb4 25.g4 (25.R2b4?! Nc8 26.Nb3 Nb6 27.Rb6 Ra8+=; 25.R6b4?! Rbc8+/–) 25...Be6 26.c5 (worse is 26.R2b4 Nc8 27.Ne4 Nb6 28.Rb6 Rdc8+=; 26.R6b4?! Rbc8+–) 26...Nc8 27.R6b4 Ne7 28.Ne4 Bd5 29.Nd6 Nc6 30.Rb7 Rb7 31.Nb7 Ra8 32.Rd2 Nb4 33.Nd6 Ra1 34.Bf1 Bc6 35.e4 Rc1 36.Rd4 Na6 37.f3 Nc5 38.Kf2 Ne6 39.Rd2 Rc3 40.Bc4 Ra3 (40...g5 41.Kg3+–) 41.h4 h6 42.Nf7! Kf7 43.Rd6 Kg7 (43...Ba8 44.g5 hg5 45.hg5+– (45.Be6?! Ke7 46.Rb6 gh4=; 45.Re6?! Rc3 46.Rc6 Ke7 47.Rg6 gh4+–)) 44.Re6 (44.Re6 Ba8 45.Re7 Kh8 46.g5 hg5 47.hg5+–; 44.Rc6?! Rf3 45.Kf3 Nd4 46.Kf4 Nc6+–) 1–0. Kaenel,Hansjuerg (2380) – Salzgeber,Frank (2070), Bern Ambassador op, 1997. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 d6 5.c4 e5 6.d3 0-0 7.Be2 Re8)

9.de4 Ne4 10.Bg7 Kg7 11.Qd4 Nf6 12.Qb2= Kg8 (12...a5 13.b5=) 13.Nc3+= Nc6 (13...a5 14.a3+=) 14.Rac1 (14.Nd5 Ne5+=) 14...Ne4 (14...Bg4 15.Rfd1+=) 15.Nd5 Ne7 16.Rc2 (16.Nf4 Nf5+=) 16...c6 17.Ne7 (17.Nf6 Nf6 18.Qf6 Nf5 19.Qd8 Rd8+=) 17...Re7 (17...Qe7 18.Rb1=) 18.Rd1 Rd7 (18...a5 19.b5=) 19.Nd2 (better 19.Rd4 Re7 20.Bd3+=) 19...Ng5?? (19...Nf6 20.h3+=) 20.Nb3?? (better 20.h4 Nh3 21.gh3 Qh4 22.Bg4+-) 20...d5 (20...Qe7 21.Bd3+=) 21.Rcd2 (21.Nc5 Rd6+/-) 21...Ne4+= 22.Rd4 Qf6 23.f3 Ng5 (23...Nd6 24.Nc5 Re7 25.e4+=) 24.R4d2 (24.Nc5!? Rd8 25.e4+/-) 24...Qb2= 25.Rb2 dc4 26.Rd7 Bd7 27.Bc4 Be6 28.Be6 Ne6 (worse 28...fe6 29.Na5+-) 29.Rd2 Rd8 30.Rd8 Nd8 31.e4 f6 32.Kf2 Ne6 33.Ke3 Kf7 34.Na5 Nd8 35.f4 b6 36.Nc4 Ke7 37.Kd4 Ne6 38.Ke3 Nc7 (better 38...Nd8=) 39.a4 (better 39.Kd3=) 39...Na6-/+ 40.b5 cb5 41.ab5 Nc5 (better 41...Nc7!?-/+) 42.e5 (42.f5 Kd7+=) 42...Ke6 43.ef6 Kf6 44.Nd6 a5 45.ba6 Na6 46.Kd4 Nc5 47.g3 Ke6 48.Nc4 Na4 49.Na3 (49.Ne3 Nc5+=) 49...Kd6 50.g4 Ke6 51.Nb5 h6 52.h4 h5 (52...Nc5 53.Kc4=) 53.f5 (53.Nc7 Kf7 54.gh5 gh5=) 53...gf5 54.gh5 Nc5 55.h6 Kf6 56.h7 Kg7 57.Ke5 Kh7 58.Kf5 Kh6 59.Ke5 Kh5 60.Kd5 Kh4 61.Kc6 Na4 62.Nd6 Kg4 63.Kb5 Kf4 64.Ka4 b5 65.Kb5 ½-½. Lance5500 (2615) - desumark (1955), lichess.org, 2017.

8.Nc3 c6

9.a4 Na6 10.b5 Nc7 11.0-0 Bf5 12.Rc1 Rb8 13.Qc2 h6 14.Rfd1 g5 15.Ne4 c5 16.Ng3 Bg6 17.Nd2 Ne6 18.Nde4 Rf8 19.Nf6 Bf6 20.Bg4 Ng7 21.Qe2 Be7 22.Bf3 f5 23.Bd5 Bf7 24.Bf7 Rf7 25.d4 cd4 26.ed4 e4 27.d5 b6 28.Qd2 Bf6 29.Ne2 Qe7 30.Bf6 Rf6 31.Nd4 f4 32.a5 Re8 33.Re1 Nf5 34.Nf5 Rf5 35.ab6 ab6 36.Qd4 Re5 37.Qb6 f3 38.h3 g4 39.g3 gh3 40.Kh2 e3 41.Ra1 Qh7 42.Qd6 Qc2 43.Qh6 Qf2 44.Kh3 Qg2 45.Kh4 R5e7 46.Re3 Re3 ½–½. Towsley – Floyd, Canada 1992.

8.Nc3 Nbd7

9.0-0 c6 10.Qb3 a6 11.Rfd1 Nf8 12.Rac1 Bf5 13.Nd2 Be6 14.Bf3 Rc8 15.Qa3 h5 (15...d5 16.Na4 N8d7 17.cd5 cd5 18.Nc5 Nc5 19.bc5=) 16.Na4 White prepares the advance c5 16...Bf5 (16...N8d7 17.d4=) 17.Ne4 White prepares c5 17...Rc7 18.c5 dc5 19.bc5 N8h7 (19...Be4!? 20.de4 Qe7+=) 20.Nd6+– Re6 21.Nb6 h4 22.e4 Bg4 23.Bg4 Ng4 24.h3 Nf2? (better 24...Ngf6+–) 25.Kf2 Bh6 26.Rc2 Qg5 27.d4 ed4 28.Bd4 Qh5 (28...Bg7 29.Bg7 Kg7 30.Kg1+–) 29.Qf3 Qg5 30.Be3 (30.Kg1 Bg7+–) 30...Qg3 (30...Qe3 31.Qe3 Be3 32.Ke3+–) 31.Qg3 hg3 32.Ke2 Be3 33.Ke3 f5 34.Kf4 (34.Kd4!? fe4 35.Ne4 Rf7+–) 34...fe4 35.Kg3 (35.Ne4?! Rf7 36.Ke3 Ng5+–) 35...Nf6 36.Rd4 e3 (36...Rce7 37.Kf4+–) 37.Re2 Nh5 (37...Re5 38.Rd3+–) 38.Kf3 Rce7 39.Re4 Ng7 40.R2e3 1–0. Iljin,A (2520) – Naoum,S (2300), 27th Kavala Open, 2018. (=1.Nf3 Nf6 2.e3 g6 3.b4 d6 4.Bb2 e5 5.c4 Bg7 6.d3 0-0 7.Be2 Re8 8.Nc3 Nbd7)

9.0-0 Nf8 10.Rc1 c6 11.Nd2 Ne6 12.Nb3 h5 13.Ne4 Ne4 14.de4 Ng5 15.Bd3 h4 16.Re1 (16.h3= –0.06) 16...b6 17.c5 dc5 18.bc5 b5 19.f4 ef4 20.Bg7 f3? (better is 20...Kg7!? 21.ef4 Ne6+=) 21.Bh6+/– Bg4 22.Qc2 Re5 (better is 22...fg2!? 23.Bg5 Qg5+–) 23.Nd4 fg2 24.Bg5 (24.Nc6?! Nf3 25.Kg2 h3 26.Kf1 Nh2 27.Qh2 Qd3 28.Kg1 Rh5+–) 24...Rg5 25.Nc6 Qc7 26.Nb4 Be6 27.Nd5 (27.Nd5 Qe5 28.Ne7 Kh7 29.Bb5+–) 1–0. Yilmaz,M (2285) – Kilicaslan,H (2260), ch–TUR, Ankara TUR, 2008. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

9.Qb3 Nf8 10.0-0 h5 (10...Ne6 11.Rfe1= a5 12.a3 Bd7 13.d4 ed4 14.Nd4 Qe7 15.Ne6 fe6 16.e4 ab4= 0.22; 10...a5 11.a3 Ne6 12.Rfe1 Bd7 13.d4 ed4 14.Nd4 Qe7 15.Ne6 fe6 16.e4 ab4= 0.22) 11.Nd2 (11.d4 ed4 12.Nd4 Ne6 13.Ne6 Be6 14.Rad1 a5 15.ba5 Nd7 16.Qb4 c5+= 0.34) 11...Ng4 (11...Ne6 12.a3+= h4 13.h3 Ng5 14.Qc2 c6 15.Rab1 d5 16.Rbc1 d4= 0.00) 12.h3 Nh6 (12...Nf6 13.Bf3 Ne6 14.Nde4 Ne4 15.Be4 f5 16.Bf3 c6= 0.25) 13.a4 (13.Bf3 Ne6 14.a3 Ng5 15.Qd1 Nf3 16.Qf3 Qh4+= 0.41) 13...Ne6 (13...a5 14.Bf3 ab4 15.Qb4 Ne6 16.Rfd1 Ng5+= 0.28) 14.a5 Nf5 (14...c6 15.Rfe1 Qe7 16.Qc2 Bd7+= 0.50) 15.Nf3 (15.Nde4 Ne7 16.Nd5 Nd5+= 0.59) 15...a6 (15...c6 16.Rfc1 Rb8+= 0.53) 16.c5 (16.Ne4 Bd7+=) 16...c6 (16...dc5!? 17.Ne4 Qe7=) 17.cd6+= Nd6 18.Na4 Nc7 19.Nb6 Rb8 20.Nc8 Rc8 21.Rfd1 Qe7 22.Rac1 Kh7 23.h4 Nd5 24.Rc5 f6 25.g3 Rcd8 26.Bf1 Bf8 27.Rdc1 Nb5 28.e4 Ndc7 29.Bh3 Bh6 30.Ng5 fg5+= 31.Re5 Qf8 32.Rf5 gf5 33.Bf5 Qf5 34.ef5 Nd5 35.hg5 Bg5 36.f4 Bh6 37.Qd1 Rg8 38.Qh5 Rdf8? 39.Kf2+– Nf6 40.Bf6 Rf6 41.g4 Nd4 42.Rg1 Ne6 43.fe6 Rf4 44.Ke2 Rg5 45.e7 (45.e7 Rh5 46.gh5+–) 1–0. Gelashvili,T (2570) – Georgiev,Kr (2445), TCh–GRE, Aghia Pelagia GRE (6), 2004. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.d3 e5 7.Be2 Re8)

8.Nbd2 Nbd7

9.0-0 a5 10.a3 c6 11.Qc2 Qe7 12.Nb3 ab4 13.ab4 Ra1 14.Ra1 d5 15.b5 e4 16.bc6 bc6 17.Nfd2 ed3 18.Bd3 Ne5 19.h3 Nd3 20.Qd3 Bf5 21.Qc3 Rb8 22.cd5 cd5 23.Ra6 Rc8 24.Qa5 h6 25.Nd4 Bd7 26.Ra8 Qe8 27.Rc8 Qc8 28.N4f3 Be6 29.Qa1 Ne8 30.Nf1 Bb2 31.Qb2 Qd8 32.Ng3 Nf6 33.Nd4 Qd7 34.Nge2 Bf5 35.Qb8 Kg7 36.Nf4 g5 37.Qe5 Bg6 38.Nfe2 Qe8 39.Qc7 Qd7 40.Qb8 Ne4 41.Qe5 f6 42.Qb8 h5 43.h4 Qd6 44.Qc8 Qe7 45.Ne6 Kf7? 46.N2d4+– Nd6 47.Qh8 Ne8 48.Nc6 (48.Nc6 Qe6 49.Nd8 Ke7 50.Ne6 Ke6 51.Qh6+–) 1–0. Jaracz,Pawel (2535) – Koepke,Christian (2360), Erbendorf op, 2009. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.Nbd2 Nbd7)

9.0-0 b6 10.a4 a5 11.ba5 Ra5 12.Nb3 Ra8 13.a5 Bb7 14.ab6 cb6 15.d4 Ne4 16.Nfd2 Qg5 17.Bf3 Nd2 18.Nd2 e4 19.Ra8 Ba8 20.Be2 f5 21.Qa4 Qd8 22.Ra1 Qc7 23.Qb3 Bc6 24.Nb1 Ra8 25.Ra8 Ba8 26.Nc3 Bc6 27.Ba3 Kh8 28.g3 (better is 28.d5!? Ba8 29.Nb5+–) 28...Nf6+= 29.h3 h5 30.h4 Bf8 31.Bd1 Kg7 32.Ne2 Be8 33.Nf4 Bf7 34.Be2 Be7 35.Bb2 Kf8 36.Qa4 Qb7 37.Bd1 Nd7 38.Bb3 Nb8 39.c5 bc5 40.Bf7 Kf7 41.Qa2 c4 42.Qc4 d5 43.Nd5 Qc6 44.Qb3 Qe6 45.Qb5 Qc6 46.Qa5 Bd6 47.Nc3 Qc4 48.Qa7 Ke8 49.Ba3 Ba3 50.Qb8 Kf7 51.Qb7 Kg8 52.Nd5 Bd6 53.Ne7 Be7 54.Qe7 Qc1 55.Kg2 Qd1 56.Qf6 (56.Qf6 Qf3 57.Kg1+–) 1–0. Anastasian,Ashot (2530) – Daniliuk,Sergey (2405), St Petersburg op, 1993. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 0-0 5.e3 Re8 6.Be2 d6 7.d3 e5)

9.0-0 Nf8 10.Qc2 Bf5 11.Rfd1 h6 12.Bc3 g5 13.Nf1 g4 14.Nh4 Bd7 15.Ng3 Nd5 16.cd5 Qh4 17.d4 e4 18.Be1 Rac8 19.Ne4 Bf5 20.f3 Qe7 (20...Qg5 A) worse is 21.Ng5 Bc2 22.Rd2 Bg6+= (worse is 22...hg5 23.Rc2 Re3 24.Bf2+=); B) 21.Bd3 Qe3 22.Bf2+=) 21.Bd3+= gf3 22.gf3 Be4 23.Be4 (23.fe4 f5 24.Kh1 fe4+=) 23...Qg5 24.Kh1 Qe3 25.Rd3 (25.Bd2 Qd4 26.Bh6 Qf6+=) 25...Qg5= 26.Rd2 c6 (26...Qf6 27.Rg2 Ng6 28.Bd2+=) 27.Rg2+= Qh5 28.Bf5 Rc7 29.Bg3 Rce7 (29...Qf3? 30.Bd6 Rce7 31.Be7 Re7 32.Rag1+–) 30.Rf1 cd5 31.Bg4 Qg6 32.Bf5 Qh5 33.Bg4 Qg6 34.Bf5 Qf6 35.Bf2 Ng6 36.Rfg1= Kh8 37.Bg6 fg6+= 38.Qg6 Qf3 39.Qg4 Qg4 40.Rg4 Rf7 41.Bh4 Kh7–+ 42.Bg3 Re4 43.Bd6 Bd4 44.Re4 de4 45.Re1 e3 46.Bc5-/+ Bc5 47.bc5 Re7 48.Kg2 Kg6 49.Kf3 Kf5 50.Ke2? Ke4–+ 51.Rb1 Kd5 52.Rc1 Kc6 53.Rc3 Re5 54.h3 Rc5 55.Ra3 a5 56.Ke3 b6 57.Kd2 Rc4 58.Rb3 Kc5 59.a3 h5 60.Rf3 Kb5 61.Rb3 Ka4–+ 62.Rb6 Rh4 63.Re6 Rh3 64.Re5 h4 65.Rh5 Rh2 66.Kd3 Rh1 67.Kc3 Rc1 68.Kd3 Rh1 69.Kc3 Rh3 70.Kd2 Rb3 71.Rh4 Ka3 72.Kc2 a4 ½–½. Csom,Istvan – Mencinger,V, It, 1987. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.Nbd2 Nbd7)

9.0-0 h6 10.Qb3 b6 11.a4 a5 12.b5 Nc5 Black intends e4 13.Qc2 e4 14.de4 Nfe4 15.Ne4 Ne4 16.Bg7 Kg7 17.Nd4 Bb7 18.Bf3 Qg5 19.Nc6 (19.Rfd1!?=) 19...Bc6=+ 20.bc6 Qf5 21.Rfd1 Re5 22.Rd4 Ng5 23.Qf5 Rf5 24.Bd5 Ne6 25.Re4 Nc5 26.Re7 Rc8 27.e4 Rf6 28.e5 de5 29.Re5 Rf2 30.Kf2 Nd3 31.Ke3 Ne5 32.h3 f5 33.Kd4 Kf6 34.c5 (34.Re1 Re8 35.Re3 f4-/+) 34...Rb8–+ 35.Rf1 (35.cb6!? Rb6 36.Kc5 Nd3 37.Kd4 Nf4–+) 35...bc5 36.Kc5 Nd3 37.Kd4 Nb2 38.Ra1 Rb4 39.Kc3 Na4 40.Kc2 Rb5 41.Bc4 Rb2 42.Kc1 Rb4 43.Bf1 (43.Bg8 f4–+) 43...Ke6 44.Ra3 Nc5 45.Kc2 a4 46.Be2 Kd5 47.Bf3 Ne4 48.Rd3 Kc6 49.Rc3 Kb6 (49...Kb6 50.Rd3 Kc5–+) 0–1. jlbaf (2445) – pierred (2795), net–chess.com, 2016.

9.0-0 h6 10.Qc2 c5 11.a3 b6 12.Ne1 (12.Ne4 Ne4 13.de4 Qf6+=) 12...Bb7 13.e4 Nf8 14.g3 (14.Nef3 Ne6+=) 14...Ne6= 15.Ng2 Nd4 16.Bd4 ed4 17.f4 Qd7 18.Rae1 Rac8 19.b5 Ra8 20.Bd1 (20.Bf3 a6 21.e5 Bf3 22.Nf3 de5 23.Ne5 Qf5=) 20...a6=+ 21.a4 Ng4 22.Kh1 h5 (22...ab5 23.ab5 Qe6 24.Bf3=) 23.f5 (23.Bf3!?=) 23...gf5=+ 24.Rf5?? (better is 24.Bf3=+) 24...Qf5!–+ 25.h3 (25.ef5 Re1) 25...Nf2 26.Kg1 Nh3 27.Kh2 Qd7 28.Nh4 (28.Bh5 Nf2 29.Nf4 Be5–+) 28...Ng5 29.Nf1 ab5 30.ab5 Qh3 31.Kg1 Ne4 (better is 31...Be5!? 32.Nf5–+) 32.de4 d3! 33.Qf2 (33.Qd3 Bd4) 33...Bd4 34.Ne3 Re4 35.Bh5 (35.Nf3 Rg4! 36.Ng4 Qg3 37.Kf1 Bf2 38.Nf6 Kf8 39.Nh5 Qh3 40.Kf2 Bf3 41.Nf4 Ra2 42.Ke3–+) 35...Qh1! 36.Kh1 Rh4 37.Kg1 Rh1 0–1. Dzieniszewski,Andrzej (2360) – Dobosz,Henryk (2415), Poland–chT Mikolajki, 1991.

9.0-0 h6 10.Qc2 Nf8 11.c5 Nd5 12.a3 f5 13.Rfd1 Be6 14.Bf1 Qe7 15.Rac1 Bf7 16.e4 Nf6 17.g3 Be6 18.Bg2 g5 19.d4 Ne4 20.Ne4 fe4 21.cd6 cd6 22.Qe4 d5 23.Qe3 e4 24.Ne5 g4 25.Qf4 h5 26.h3 gh3 27.Bf1 Kh7 28.Rc5 ½–½. Benko – Ciocaltea, Lugano, 1968.

9.Qc2 a5 10.a3 b6 11.0-0 Bb7 12.Ne1 Qe7 13.b5 Nc5 14.a4 Nfd7 15.Nb3 f5 16.Nc5 dc5 17.Rd1 Nf8 18.Bf3 e4 19.de4 fe4 20.Bg4 Rad8 21.g3 (21.Bg7 Kg7 22.Qc3 Qf6+=) 21...Rd1= 22.Bd1 Rd8 23.Bg4 Bb2 24.Qb2 Qg7 25.Qc2 Qe5 26.Ng2 h5 27.Be2 Ne6 28.h4 Kg7 29.Rd1 Rd1 30.Qd1 Qd6 31.Qa1 Kh7 32.Qf6 Ng7 33.Qf7 Bc8 34.Nf4 Bf5 (better is 34...c6!?+–) 35.Nd5 Be6 36.Qc7 Qc7 37.Nc7 Kg8 38.Na8 Ne8 39.Nb6 Nd6 40.f3 Kf7 41.fe4 Ne4 42.Kg2 Nd6 43.Kf3 Bg4 44.Kf2 Ne4 45.Ke1 Be2 46.Ke2 Ng3 47.Kf3 Nf5 48.Nd7 Nh4 49.Kf2 Ke7 50.Nc5 Kd6 51.Nb7 Kc7 52.Na5 Nf5 53.c5 Ne7 54.e4 1–0. Shestoperova,Aleksandra S (2175) – Sorokina,Tamara (2180), Wch Seniors (Women), 1998. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.c4 d6 5.e3 e5 6.d3 0-0 7.Be2 Re8 8.Nbd2 Nbd7)

8.Nbd2 e4

9.de4+= Ne4 10.Bg7 Kg7 11.Ne4 Re4 12.Qc2 Re8 13.Qc3 Qf6 14.Qf6 Kf6 15.Kd2 Nc6 16.Kc3 Ne5 17.Nd2 Ke7 18.Nb3 Bd7 19.f4 Nc6 20.Bf3 f5 21.Rhe1 Kf6 22.Rad1 Be6 23.a3 Rab8 24.c5 Bb3 25.Kb3 dc5 26.bc5 Re7 27.Rd3 Rbe8 28.Kc4 Nd8 29.Red1 Nc6 30.Rd7 h6 (worse is 30...Re3 31.Rc7 (31.Rh7?! Ra3 32.Rc7 Ra4 33.Kc3 Re3 34.Kd2 Re7 35.Re7 Ke7=) 31...R8e7 32.Rd6 Kf7 33.Re7 Ne7 34.a4+/–) 31.Re7 Ke7 32.e4 Rd8 33.ef5 (33.Re1 Ke6+/–) 33...Rd1+= 34.Bd1 gf5 35.Bf3 Nd8 36.Kd5 Kf6 37.g3 Nc6 38.Kc4 Nd8 39.Bd5 Ke7 40.Kd4 Kf6 41.Bf3 ½–½. Sloth,Joern (2340) – Stuerzenbaum,A (2155), Dresden GER, 2013. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

9.de4 Ne4 10.Bg7 Kg7 11.Ne4 Re4 12.h4 Qf6 13.h5 Re8 14.Rh4 Bf5 15.Qd4 Qd4 16.Nd4 (worse is 16.ed4 Bd3 17.Ng1 Bc4+=; worse is 16.Rd4 Nc6+= (16...gh5?! 17.Rh4+=)) 16...Bd7 17.b5 g5 18.h6 Kf6 19.Rh5 Bc8 20.Bd3 Rh8 21.Nf3 Nd7 22.Rg5 Nc5 23.Bc2 Be6 24.a4 Rag8 25.Rg8 Rg8 26.g3 Bc4 27.0-0-0 Bb3 28.Rd4 (worse is 28.Bh7 Bd1 29.Kd1 Rh8–+) 28...Bc2 29.Kc2 Rg6 30.Rh4 d5 ½–½. Rocha,S (2430) – Cabezas Ayala,I (2355), Tch–POR 1st Div Final, 2010. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Re8)

7.d3 Ne8

8.0-0 f5 9.Nc3 Kh8 10.d4 (10.Qb3 Nd7+–) 10...e4+= 11.Ne1 (11.Nd2 Nf6+=) 11...g5 (11...Nf6 12.Nc2+=) 12.f3 ef3 13.gf3 (13.Nf3 g4 14.Ne1 Nf6+–) 13...f4 (13...Nc6 14.b5 Ne7 15.Qd2+=) 14.e4 (14.Ng2 fe3 15.Ne3 Nc6=) 14...Bh3 15.Rf2 Nc6 16.Nc2 h5 Black intends g4 (16...Nf6 17.b5 Na5 18.Rb1=) 17.b5 (17.Qd2 a6+=) 17...Ne7 18.Kh1 (18.Nb4 c6=) 18...Ng6= 19.Qd2 g4 20.Bf1 (20.Rg1 Qh4 21.Bd3 g3=) 20...Qh4=+ 21.Bh3 (21.Bd3 Kh7=+) 21...Qh3 22.Rff1? (22.Ne2 g3 23.Rg2 Nh4 24.Nf4 Rf4 25.Rg3 Nf3-/+) 22...gf3?? (better 22...Nh4 23.Nd5 c6 24.bc6 bc6–+) 23.Qf2=+ Nh4 24.Ne1 Kh7 (24...Rg8 25.Nf3 Nf3 26.Qf3 Qf3 27.Rf3 Bd4 28.Rf4 Nf6=) 25.Nf3 (better 25.Rd1!?=) 25...Qf3 26.Qf3 Nf3 27.Rf3 Bd4 28.Raf1 Be5 29.Bc1 Ng7 (29...a6 30.a3-/+) 30.Bf4 (30.Nd5 Ne6 31.Bf4 Bf4 32.Nf4 Ng5=) 30...Bc3 31.Rc3 Ne6 (31...Rae8 32.Re3=+) 32.Rcf3 Rf4 33.Rf4 Nf4 34.Rf4 Kg6 35.Kg2 a6 36.Rf2 b6 37.Rc2 (37.Kg3 ab5 38.cb5 Ra3 39.Kf4 Rc3=) 37...a5 (37...Kf6 38.Kf3=+) 38.Rf2= Re8 39.Kf3 Rf8 40.Ke3 Rf2?? (40...Re8 41.h4+=) 41.Kf2 Kf6? (41...Kg5 42.Kg3 Kg6+–) 42.Kf3 (42.a4 h4 43.Ke3+–) 42...Ke5?? (42...Kg5 43.Kg3 a4+=) 43.Ke3 a4 (43...h4 44.h3 Kf6+–) 44.a3 Ke6 45.Kf4 h4 (45...Kf6 46.h4 Kg6 47.e5 de5 48.Ke5+–) 46.h3 Kf6 47.Kg4 Ke5 48.Kh4 Ke4 49.Kg4 Kd4 50.h4 Kc4 51.h5 Kb5 (51...Kb3 52.h6+–) 52.h6 Kc4 53.h7 Kb3 (53...b5 54.h8Q b4 55.Qh7+–) 54.h8Q Ka3 (54...c5 55.Qh3 Kb2 56.Qd3+–) 55.Qc3 Ka2 56.Qc7 b5 57.Qd6 Kb3 58.Qd3 Kb4 59.Qb1 Kc4 60.Qc2 Kb4 61.Qb2 Kc4 62.Qa3 b4 63.Qa4 Kc3 Plans Qe8 64.Qa2 b3 (64...Kd4 65.Qa6 Kc5 66.Qa7 Kd5 67.Qb7 Kc4 68.Qd7 b3 69.Qd2 Kb5 70.Qd3 Kb4 71.Qd5 b2 72.Qd3 Ka4 73.Kf5 Ka5 74.Qd2 Kb5 75.Qb2 Kc6 76.Qe5 Kb7 77.Qb5 Ka8 78.Ke4 Ka7 79.Kd5 Ka8 80.Kc6 Ka7 81.Qb7) 65.Qb1 (65.Qb1 Kd4 66.Kf5 b2 67.Qb2 Ke3 68.Qc3 Kf2 69.Kf4 Kg1 70.Kf3 Kh2 71.Qg7 Kh3 72.Qg3) 1–0. Fecker,Noah (2165) – Esquivel San Agustin,Dieg, World Youth Open U14, 2017. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.e3 0-0 6.Be2 e5 7.d3 Ne8)

8.Qc2 f5 9.Nc3 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 g5 Black prepares the advance f4 13.Nd2 g4 14.h3 Qh4 15.g3 Qh6 16.h4 (16.Bf1!?=) 16...f4 17.Nd5 Be6 18.ef4 (18.gf4!? c6 19.f5=) 18...Bd5=+ 19.cd5 ef4 20.Bg7 Qg7 21.0-0 fg3 22.fg3 Qd4 23.Kg2 Qd5 24.Kh2 Rf1 25.Bf1 Nc6 (25...Qf7 26.Bg2 d5 27.Qa4-/+) 26.Bg2=+ Qb5 27.Qa2 Kg7 (27...Kf8 28.Qe6-/+) 28.Ne4 (28.Qe6 A) worse 28...Qd3 29.b5 (29.Qg4?! Qg6 30.Qd7 Qf7 31.Bc6 bc6 32.Qc6 Nf6=) 29...Ne5 30.Qe7 Nf7 31.Ne4+–; B) 28...Nb4 29.Qg4 Kh8=) 28...Qe5 (28...Qb4?! 29.Qe6 d5 30.Qg4 Kh8 31.Qh5=) 29.Ng5 Nd8 30.d4 Qe7 (worse 30...Qd4 31.Qa8 Qf6 32.Qd8 Qd8 33.Ne6 Kf6 34.Nd8+–) 31.Qc2 (better 31.Qa8!? Kg6 32.Be4 (worse 32.Bb7 Nb7 33.Qb7 Qe2 34.Qg2 Qg2 35.Kg2 Ng7-/+) 32...Kh5 33.Qc8+= (worse 33.Nh7 Qe4 34.Qd8 Qe2 35.Kg1 Qe3 36.Kf1 Qf3 37.Ke1 Qg3 38.Kd2 Qf4 39.Kd3 Ng7–+; 33.Bb7?! Nb7 34.Qb7 Nf6=)) 31...Nf6-/+ 32.Qf5 h6 33.Ne4 Qe6 34.Qf4 Nd5 35.Qd2 Nc6 36.b5 Nce7 37.Nc3 Ne3 38.Qe2 N7f5 39.Nd5 c6 40.bc6 bc6 41.Ne3 Ne3 42.Bc6 Kf6 43.Bd7 (43.Qf2!? Nf5 44.Kg1=+) 43...Qe4-/+ (worse 43...Qd7 44.Qe3 Kg6 45.Kg1=) 44.d5 Ke5 45.Be6 Nd5 46.Qe4 Ke4 47.Bg4 Ne3 48.Be2 Nf5 49.Kh3 Ke3 (49...d5 50.g4 Ng7 51.g5 hg5 52.Kg4=+) 50.Bd1 (50.Bc4!?=) 50...d5-/+ 51.g4 Ng7 52.Kg3 d4 53.g5 h5 54.Kg2 d3 (54...Ne6 55.Kg3 Nf4 56.Bc2-/+) 55.Ba4 (55.Kg3!?=+) 55...Nf5-/+ 56.Kh3 Kf2 57.g6 (57.Bd1 Ng7-/+) 57...d2 (57...Ke1 58.Be8–+) 58.Bd1-/+ Ng7 59.Ba4 Kf3 (59...Ne6 60.Kh2-/+) 60.Bb3 (60.Bd1 Ke4=) 60...Kf4 (60...Ne6! 61.Bd1 Kf2-/+) 61.Kg2=+ Ke3 62.Kh3 (better 62.Bd1!?=) 62...Ne6! 63.Kg3 (63.Be6 d1Q Combination) 63...Nd4 (63...Ke2!?-/+) 64.Bd1= Nf5 65.Kh3 Ng7 66.Kg3 Nf5 67.Kh3 Ng7 68.Kg3 Kd3 69.Kf4 Kd4 70.Be2 Ne6 (better 70...Kd5!?+=) 71.Kf5+– Ke3 72.Bd1 Ng7 73.Kf6 Ne8 74.Ke7 Ng7 75.Kf7?? (better 75.Kf8!? Nf5 76.g7+–) 75...Nf5+= 76.Bh5?? (better 76.Kf6 Kf4 77.Bh5 Nh4 78.g7=) 76...Nh4-/+ 77.g7 Nf5 78.g8Q Nh6 ½–½. Martin Hernandez,R (2125) – Sanchez Saez,F (2225), XLV Mislata Open A, 2011. (=1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 0-0 5.d3 d6 6.e3 e5 7.Be2 Ne8)

8.Nfd2 f5 9.a4 Nf6 10.0-0 Nc6 11.b5 Ne7 12.a5 g5 13.Na3 (13.d4 Nd7+=) 13...f4 14.ef4 gf4 15.Bf3 Nf5 16.a6 Rb8 17.ab7 Bb7 18.Nc2 Bf3 19.Qf3 (worse 19.Nf3 c6 20.Nb4 Ne7 21.Ra7 cb5+=) 19...Nh4 20.Qe2 (20.Qh3 Ng6+–) 20...Qd7 (20...c6!? 21.Nb4 cb5+=) 21.Ra7+– Bh6 22.Ne4?? (22.Rfa1 Rf7+–) 22...Ng4?? (22...f3 23.Nf6 (23.gf3? Ne4 24.Kh1 Ng5–+) 23...Rf6 24.Qe4 fg2 25.Qh4 gf1R 26.Kf1–+) 23.h3?? (better 23.Rc7! Qc7 24.Qg4 Ng6 25.Ba3+–) 23...f3+= 24.gf3 Nf3 25.Kh1 (better 25.Kg2 Nh4 26.Kh1=) 25…Ne3!-/+ (25...Ne3 26.Rg1 Ng1 27.Kg1 Nc2 28.Qc2 Qh3 29.Rc7 Kh8–+) 0–1. Hal1958 – Eli, playchess.de, 2002.

8.e4 f5 9.Nbd2+= Nc6 10.a3 (10.b5 Nd4 11.Nd4 ed4+=) 10...Nf6= 11.ef5 gf5 (11...Bf5 12.0-0=) 12.0-0 Ng4 (12...a6 13.Qc2+=) 13.Qc2 Bd7 14.Nb3 (14.c5 Re8+=) 14...Ne7 (better is 14...e4!? 15.Nfd4 Qh4 16.Bg4 Qg4=) 15.Nfd2+= Nh6 16.f3 (better is 16.Rae1!?+/–) 16...Ng6 (16...f4 17.d4 Nhf5 18.Qd3+=) 17.Rae1 Qg5 18.f4? (better is 18.g3!?=) 18...Nf4-/+ 19.Bf3 Ng4 (better is 19...Rab8 20.c5 Ng4-/+) 20.Bg4?? (better is 20.Bb7 Nh3 21.Kh1 Ngf2 22.Rf2 Nf2 23.Kg1 Nh3 24.Kf1+=) 20...Qg4 (20...fg4?! 21.Ne4 Qh5 22.Nc1–+) 21.Nf3 Rf6?? 22.Be5+= Rh6 23.Bg7 Qg7+= 24.d4? Rf8?? 25.d5? Rg6?? 26.g3 Nh3 27.Kh1 f4 28.Nh4 Rg4 29.Rf3?? Ng5 30.Rff1?? c6 31.Nd4?? Qd4–+ 32.Rg1 f3 33.Rgf1 Qc4 34.Qb1 Qd5 35.Re7 Bf5 36.Qa1 Nf7 37.Kg1 Bd3 38.Rf3 Rh4! 39.Qd1 Rd4 40.Qe1 Bc2 41.Qf2 Rd1 42.Kg2 Be4 43.Re4 Qe4 (43...Qe4 44.Qe3 Qd5 45.Qb3 Rd2 46.Kf1 Qb5 47.Qd3 Rd3 48.g4 Rf3 49.Ke1 Qd5 50.g5 Re8) 0–1. Rudol,Matylda – Semik,Tomasz, Polanica–Zdroj Poland, Open, 2012.

8.e4 Nf6 9.Nc3=.

8.Nc3 f5

9.0-0 Be6 10.b5 Nd7 11.Nd2 Nef6 12.Bf3 Rb8 13.Nb3 g5 14.Na5 e4 15.de4 Ne4 16.Qc2 (worse is 16.Ne4 Bb2 17.Nb7 Rb7 18.Ng5 A) 18...Bc4?! 19.Bd5 Bd5 20.Qd5 Kh8 21.Rab1+=; B) 18...Ba1?? 19.Ne6 Qc8 20.Bb7 (worse is 20.Qa1 Rf6 21.Bd5 Rb6+–) 20...Qb7 21.Nf8 (21.Qa1?! Rf6 22.Nf4 Ne5+–) 21...Nf8 22.Qa1+–; C) 18...Qg5-/+) 16...Nec5 17.Rfd1 Ne5 18.Bd5 c6 19.Be6 Ne6 20.Nb3 Nc4 21.bc6 bc6 22.Rac1 d5 23.Ba1 Qe8 24.Ne2 Ba1 25.Ra1 Qg6 26.Rac1 Rbc8 27.Ned4 Nd4 28.Nd4 Qf6 29.Nf3 Rb8 30.Nd4 Rbe8 31.Rd3 Re4 32.Nb3 Rfe8 33.Nd2 Nd2 34.Qd2 f4 35.h3 fe3 36.Re3 Re3 37.fe3 h6 38.Qd3 Qe6 39.Kh1 Re7 40.a4 Rf7 (40...Qe3?! 41.Qg6 Rg7 42.Qc6=) 41.a5 g4 42.hg4 Qg4 (42...Rf6!?-/+) 43.Rc6= ½–½. Gelashvili,T (2610) – Dembo,Y (2430), Acropolis Open, Athens GRE, 2008. (=1.Nf3 Nf6 2.e3 g6 3.b4 Bg7 4.Bb2 0-0 5.c4 d6 6.Be2 e5 7.d3)

9.Qb3 Be6 10.0-0 g5 11.Rfe1 g4 12.Nd2 Nc6 13.Nd5 Qh4 14.b5 Bd5 15.cd5 Ne7 16.f3 (16.Qc4 Qh5+=) 16...gf3 (16...Nf6 17.fg4 fg4 18.e4=) 17.Nf3 Qh6 18.Bf1 Nf6 19.Rac1 Rac8 (19...Ned5? 20.e4 c5 21.Kh1+– (21.ed5?! e4+=)) 20.Ne5 (20.e4 Nd7=) 20...de5 21.d6 Ned5 22.d7 (22.dc7 Rf7 23.Be5-/+) 22...Rcd8-/+ 23.e4 Ng4?? (better is 23...Rd7 24.ed5 Nd5-/+) 24.Qd5+– Rf7 25.h3 Rdd7 (25...Qb6 26.Qc5 Nh6 27.ef5 Nf5 28.d4 Rdd7 29.Qb6 ab6 30.de5+–) 26.Qb7 Qf4 (26...Ne3 27.Qa8 Rf8 28.Qa7 Nf1 29.Rf1+– (29.Kf1?! fe4 30.Kg1 ed3 31.Rc7 d2+=)) 27.hg4 fg4 28.Re2 (28.Qa7 g3 29.Qa8 Rf8 30.Qf8 Bf8 31.Be5 Qe5–+) 28...g3 29.Qc8 Bf8 30.Be5 Qc1 (30...Qc1 31.Bf6 Qh6 32.Qf8 Rf8 33.Bh4 Qh4 34.b6 Qh2) 0–1. Lombard,Andre – Sirkia,Mauri O, WchT U26, 1970. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

9.h4 h6 10.Qc2 Nf6 11.0-0-0 (11.0-0 Be6 12.Rfd1 Nc6 13.b5 Ne7 14.d4 e4 15.Nd2 a6 16.d5= 0.00; 11.a3 Be6 12.d4 e4 13.Nd2 a5 14.h5 ab4 15.ab4 Ra1 16.Ba1= 0.06; 11.d4 e4 12.Nd2 Nc6 13.a3 Ne7 14.Nb3 c6 15.h5 g5 16.Rc1= 0.06; 11.Qb3 e4 12.c5 Kh8 13.de4 fe4 14.Nd4 a5 15.cd6 cd6 16.h5= 0.06) 11...Be6 12.h5 (12.d4 Ng4 13.Rdf1 c6 14.d5 Bd7 15.Kd1 Nf6 16.a3= 0.00) 12...g5 (12...a5 13.b5 g5 14.d4 e4 15.Nd2 c6 16.f3= –0.22) 13.d4 e4 14.Ng5 (14.Nd2 Qe7 15.f3 d5 16.Nd5= –0.12) 14...hg5 15.h6 (15.f3 d5 16.cd5-/+ –1.12) 15...Bh8 16.d5 (16.f3-/+ –1.16) 16...Bc8 17.h7? (better is 17.f3!? ef3 18.gf3-/+) 17...Nh7–+ 18.f3 a5 19.b5 ef3 20.gf3 Qe7 21.Rd3 0–1. Brih,S (2350) – Mikhalevski,V (2610), 1st Open, Marrakesh MAR (5), 2010. (=1.Nf3 Nf6 2.b4 g6 3.Bb2 Bg7 4.e3 0-0 5.Be2 d6 6.c4 e5 7.d3)

7.d3 Bg4

8.0-0 a5 9.b5=.

8.0-0 a6 9.h3 Bf5 10.Nbd2 Nc6 11.a3 Ne7 12.Qb3 White plans b5 12...c6 13.e4 Be6 14.Qc3 Rb8 15.a4 Nd7 16.b5 ab5 17.ab5 c5 18.Nb3 b6 19.Ra6 f5 20.Nbd2 Ra8 21.Rfa1 Ra6 22.Ra6 Nb8 23.Ra7 Nc8 (23...h6 24.Qc2+=) 24.Ra4 (24.Rg7!? Kg7 25.Ne5 de5 26.Qe5 Kf7 27.Qb8+/–) 24...Nd7 25.Qa3 Ne7 26.Ra7 Nf6 27.Qa6 Bc8 28.Qa3 fe4 (28...Be6 29.Bc1+=) 29.Ne4 Ne4 30.de4 Be6 31.Qd3 Re8 32.Ra3 Qc7 33.Qb3 Rd8 34.Qa4 Qb7 35.Qa7 Rb8 36.Qb7 Rb7 37.Ra8 Kf7? (better is 37...Bc8+/–) 38.Ng5+– Kf6 39.Nh7 Kf7 40.Ng5 Kf6 41.Ne6 Ke6 42.Bg4 Kf7 43.f3 Ng8 44.Kf2 Nh6 45.Rd8 Bf8? 46.Rd7 Rd7 47.Bd7 Ke7 48.Bc6 Kf6 49.Bd5 Kg5 50.g3 Kf6 51.Bc1 Nf7 52.Bf7 Kf7 53.Bg5 Be7 54.Be7 Ke7 55.h4 Kf6 56.g4 Kg7 57.Kg3 (57.Kg3 Kf7 58.f4 ef4 59.Kf4+–) 1–0. Fournier,Frederic (1720) – S1Lv3R (1760), Active (5/0), 2004.

8.0-0 c6

9.Nbd2 Nbd7=.

9.d4 Nbd7 10.Nc3 (10.de5 Bf3 11.ef6 Bf6 12.Bf6 Qf6=) 10...e4 (10...Bf3 11.Bf3 Nb6 12.Be2=) 11.Nd2 Be2 12.Qe2 d5 13.f3 Re8 (13...ef3 14.Qf3 Qe7 15.b5=) 14.b5 (14.fe4 de4 15.Rad1 Qe7+=) 14...ef3 (14...cb5 15.cb5 ef3 16.Qf3=) 15.Qf3+= Qe7 16.cd5 cd5 (16...cb5 17.Rae1 Bh6 18.Kh1=) 17.Rae1 (17.Nd5 Nd5 18.Qd5 Nf6=) 17...Qb4 (17...Qe6 18.Qf4=) 18.Nb3 Nb6 19.e4 de4 20.Ne4 Ne4 21.Re4 Do you see the mate threat? 21...Rf8 22.Rh4 Nc4 23.Ba1 Qb5+= 24.a4 Qb6 25.Rc1 Ne5 26.Qh3 White intends a5 26...h5?? 27.a5+– Qb5 28.de5 Rac8?? 29.Rc8 Rc8 30.Qc8 Kh7 31.Qc2 Be5 32.Rh5 Kg7 33.Be5 Qe5 34.Re5 (34.Re5 b5 35.Re7 Kf6 36.Qc7 Kg5 37.Rf7 Kh5 38.Rh7 Kg4 39.Qe5 b4 40.h3) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.d4 e4 10.Nfd2 Be2 11.Qe2=.

8.h3 Bf3

9.Bf3 c6 10.b5 Qc7 11.a4 a6 12.Nc3 ab5 13.ab5 Nbd7 14.0-0 h6 (14...Nc5 15.Qc2+=) 15.Qb3 (15.Na4 Nh7+=) 15...Nc5+= 16.Qc2 Nfd7 (16...Ne6 17.Rfb1+=) 17.bc6 bc6 (17...Ra1!? 18.Ba1 bc6+=) 18.Nb5!+– Qd8 (18...cb5 19.Ba8 Pinning (19.Ba8 Deflection)) 19.Bc6+– (19.Nd6?! Ra1 20.Ba1 Qc7+–) 19...Ra1 20.Ra1 f5? (20...Qb6 21.Ba8 Rb8+–) 21.Bd5 (21.d4 ed4 22.ed4 Ne4+–) 21...Kh8 (21...Kh7 22.Ra7+–) 22.Nd6 (22.d4 ed4 23.ed4 Ne4 24.Be4 fe4 25.Nd6 Qb6+–) 22...Kh7 (22...Qb6 23.Nb5 Nf6 24.Bf3+–) 23.Nb5 Nb6 24.Nc3 (better 24.Ba3 Qe7 25.d4 ed4 26.ed4 Rc8+–) 24...Nd5 25.Nd5 h5 (25...Rf7 26.Bc3+–) 26.d4 ed4 27.Bd4 (better 27.Ra7 Ne6+–) 27...Ne6 (27...Rf7+–) 28.Bg7 Kg7 29.Qb2 (better 29.Ra6 Re8 30.Qb2 Kh6 31.Nf6+–) 29...Kg8 (29...Kh6 30.Ra6 Ng5+–) 30.Qe5 (30.Ra6 Qd7 31.Qe5 Qg7 32.Qe6 Qf7 33.Ne7 Kg7 34.Qe5 Kh7 35.Rg6 Re8+–) 30...Ng5 (30...Ng7 31.Ra6 Qe8 32.Nf6 Rf6 33.Qf6+–) 31.h4 Nh7 (31...Qb8 32.Qb8 Rb8 33.hg5 Kf7+–) 32.Ne7 Kf7 33.Ra7 Qe8 34.Nf5 (34.Nf5 Qe7 35.Re7 Kg8 36.Qg7) 1–0. UncleBulgaria (2460) – Prisma (2050), ChessWorld.net, 2017.

9.Bf3 c6 10.Nd2 Nbd7 11.a4 (11.0-0 d5+=) 11...Qe7 (11...Re8 12.0-0=) 12.0-0 (12.b5 Rfc8+=) 12...Rfe8 13.e4 (13.Rc1=) 13...b5 (better 13...Rad8!?=) 14.ab5+– cb5 15.cb5 (15.Qe2 Reb8+–) 15...Nb6 (15...d5 16.Qa4+=) 16.Qb3 Red8 (16...Bh6 17.Rfd1+–) 17.Rfc1 d5 (17...Bh6 18.Rc2+–) 18.ed5+– Nbd5 (18...Nfd5 19.Rc5 Nf4 20.Ba8 Na8 21.Ne4+–) 19.Rc4 (19.Rc5!? Bh6 20.Nb1 Qd7 21.Be5 Bf8 22.Bf6 Nf6 23.Ba8 Bc5 24.bc5 Ra8+–) 19...Rab8 (19...Bh6 20.Ne4 Nd7 21.Nc3 Nc3 22.Ba8 (worse 22.Qc3 Rab8+–) 22...Ne2 23.Kf1 Ng3 24.fg3 Ra8 25.Re4+–) 20.Ra5 (20.Rc5 e4 21.de4 Nf4+–) 20...Bf8 (20...Rd7 21.Rc5 Rbd8 22.Nc4+–) 21.Rc5 (better 21.Ne4+–) 21...Qd7? Exerts pressure on the isolated pawn (better 21...Nb4 22.Qb4 Qc5 23.Qc5 Bc5 24.Be5 Rb6+=) 22.Be5+– Bc5 23.Bb8 (better 23.bc5 Rbc8 24.d4+–) 23...Rb8?? (better 23...Bf2 24.Kf2 Rb8+=) 24.bc5+– Nc7 (24...Nc7 25.Bc6 Qd4+–). GuestQRJD – nouch, freechess.org, 2016.

7.d3 Ng4

8.Qb3 a5!?=+.

8.Qb3 Kh8 9.h3 (9.Nc3 a5 10.b5 Nd7+=) 9...Nh6 (9...Nf6 10.Nc3+=) 10.Nbd2 (10.0-0 a5 11.a3 Nd7+–) 10...f5 (10...a5 11.a3+=) 11.c5 (11.0-0 Qe7+–) 11...Qe7 (11...dc5 12.0-0+=) 12.cd6 (12.0-0 dc5 13.bc5 Nc6+=) 12...cd6 13.a4 (13.0-0 Be6 14.Qa3 a6+–) 13...Be6+= 14.Qa3 Nd7 15.Rc1 (15.0-0 Rac8+=) 15...Rac8 16.e4 (16.0-0!?+=) 16...Rc1=+ 17.Bc1 d5 (17...Rc8 18.0-0=+) 18.0-0 (18.b5 Qa3 19.Ba3 Rc8=+) 18...Rc8 19.ed5 (19.Bb2 Nf7=+) 19...Bd5=+ 20.Bb2 (20.Nc4 f4 21.Bb2 e4 22.Bg7 Kg7 23.Qc3 Qf6 24.Qf6 Kf6=+) 20...Nf7 Black prepares the advance e4 21.Bd1 a5 (21...Bf6 22.Re1=+) 22.ba5= Qa3 23.Ba3 e4 (23...Bf6 24.Be2=) 24.de4 fe4 25.Nh2 Nc5 (25...h5!?=) 26.Ng4+= Bc3 (26...Bd4 27.Ne3 Be6 28.Bc5 Rc5 29.Bb3+=) 27.Ne3+– Be6 28.Bc5 Bd2 29.Bb6 Ra8 (29...Kg8 30.Bg4 Bg4 31.Ng4+–) 30.Bc2 (30.Bg4 Bg4 31.Ng4 Kg7+–) 30...Ba5 31.Bd4 Kg8 32.Be4 Nd6 (32...Rd8 33.Bf6 Rd6 34.Ba1+–) 33.Bf3 Bd2 (33...Bd8 34.Bc5 Ra6 35.Rb1+–) 34.Rd1 (34.Bc5 Nf7+–) 34...Be3 35.Be3 Nf5 36.Bb7 (36.Bg5 Ra4 37.Bb7 Nd4+–) 36...Ra4 (36...Ne3 37.fe3 Ra4 38.Bf3+=) 37.Bf3 (37.Bg5 Rb4 38.Ba6 Kf7+–) 37...Kf7 (37...Ne3 38.fe3 h5 39.Kf2+=) 38.Rb1 (38.Bb6 h5+–) 38...h5 (38...Ne3 39.fe3 h5 40.Kf2+=) 39.Rb7 (39.Bg5 Nd4 40.Bb7 Ke8+–) 39...Kf6 40.Rb6 (40.Ra7 Rc4+–) 40...Ne3 (40...Ra1 41.Kh2 Ne3 42.fe3+=) 41.fe3 Ke5 (41...Ra5 42.Kf2+=) 42.Rb5 Kf6 43.Rb2 (43.Kf2 Bf5+=) 43...Bf5 (43...h4 44.Kf2+=) 44.Kf2 Kg5 (44...Be4 45.Bd1 Ra1 46.Rb6 Kf7 47.Bf3 Bf3 48.Kf3+=) 45.Bc6 Rc4 (45...Ra6 46.Bb7 Ra4 47.Kf3+=) 46.Bd5 Ra4 47.Kf3 1–0. Grigoriev,Armen (2170) – Aydin,Ersin (1980), Mersin Open, 2016. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3 Ng4)

8.h3 Nh6 9.Qb3 f5 10.c5 Kh8 11.Nc3 Nd7 12.cd6 cd6 13.g4 (13.Rc1 a5+=) 13...Nb6 14.g5 Nf7 15.h4 Qe7 16.d4 ed4 17.Nd4 Bd4 18.Nd5 White prepares the advance h5 (better 18.ed4!? Kg8 19.Rh3+=) 18...Bb2=+ 19.Ne7 Ba1 20.h5 Ng5 21.f4 (better 21.hg6 Bd7 22.gh7=) 21...Be6-+ 22.Qd3 Ne4 23.hg6 Kg7 24.Rh7 Kf6 25.g7 Rfe8 (25...Ke7? A) 26.gf8B Kf8 27.Kf1 A1) 27...Ba2 28.Qa3 (28.Rb7?! Bc3 29.Qa6 Bd5 30.Ra7 Rb8=) 28...Kg8 29.Rc7+/- (worse 29.Qa2 Kh7 30.Qa1 Kg6+/-); A2) 27...Bg7-/+; B) 26.gf8N Kf8 27.Kf1 B1) 27...Ba2 28.Qa3 (28.Rb7?! Bc3 29.Qa6 Bd5 30.Ra7 Rb8=) 28...Kg8 29.Rc7+/- (worse 29.Qa2 Kh7 30.Qa1 Kg6+/-); B2) 27...Bg7-/+; C) 26.gf8Q Kf8 27.Kf1 C1) 27...Ba2 28.Qa3 (28.Rb7?! Bc3 29.Qa6 Bd5 30.Ra7 Rb8=) 28...Kg8 29.Rc7+/- (worse 29.Qa2 Kh7 30.Qa1 Kg6+/-); C2) 27...Rc8-/+; D) 26.gf8R Kf8 27.Kf1 D1) 27...Ba2 28.Qa3 (28.Rb7?! Bc3 29.Qa6 Bd5 30.Ra7 Rb8=) 28...Kg8 29.Rc7+/- (worse 29.Qa2 Kh7 30.Qa1 Kg6+/-); D2) 27...Rc8-/+; E) 26.g8Q Rf7 27.Qg6+-) 26.Bf3?? (better 26.g8Q Bg8 27.Ng8 Rg8 28.Bf3-+) 26...Bc3-+ (26...Re7 27.Be4 fe4 28.Qe4-/+) 27.Ke2 Bc4 28.Nd5 0-1. Manigandan,S (2125) - Fedorov,Alex (2520), 2nd Athens of the East Op (9), 2022. (=1.Nf3 A15: English Opening: 1...Nf6 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.d3 e5 7.Be2)

8.Nc3 f5

9.0-0 Be6 10.a4 Nd7 11.a5 a6 12.e4 (12.d4 Qe7+=) 12...Kh8 (12...Qf6 13.Bc1=) 13.d4+= Bg8 14.h3 Nh6 15.de5 de5 (15...Ne5 16.Ne5 de5 17.Qc2+=) 16.Qc2 c6 (16...Qe7 17.Ba3 Rfd8 18.Rad1+=) 17.Rad1+/- Qe7 18.Rfe1 f4 (18...Rad8 19.c5+=) 19.c5 Be6 20.Nb1 Nf7 21.Nbd2 h5 (21...Rad8 22.Bc4+=) 22.Nc4 g5 23.Nh2 g4 24.hg4 hg4 25.Bg4 Bg4 26.Ng4 f3 (26...Rad8 27.Rd3+-) 27.Bc1 (27.Qd3 Qe6 28.Qd7 Qc4 29.Qb7 Rab8 30.Qc6 Rb4+-) 27...Qe6 (27...fg2 28.Kg2 Kg8 29.Nce3+-) 28.gf3 Nf6 29.Nce3 Ng5 30.Kg2 Ng4 31.fg4 (31.Ng4?! Nf3 32.Rh1 Kg8 33.Nh6 Bh6 34.Bh6 Nd4 35.Rd4 ed4 36.Bf8 Rf8+/-) 31...Qg6 (31...Rad8 32.Rh1 Kg8 33.Rd8 Rd8 34.Nf5+-) 32.Rh1 Kg8 33.Nf5 Ne6 (33...Rf7+-) 34.Ne7 (34.Ne7 Kf7 35.Ng6 Kg6 36.Rd6+-) 1-0. Xiong,Jeffery (2685) - Weetik,V (2420), Titled Tuesday, 2022. (=1.Nf3 A15: English Opening: 1...Nf6 1...Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

9.Qb3 Be6 10.h3 Nh6 11.h4 Nf7 12.d4 a5 13.d5 Bc8 14.a3 ab4 15.ab4 Ra1 16.Ba1 Nd7 17.e4 Nf6 18.Nd2 Bh6 19.Qc2 Ng4 (19...Bd2!? 20.Kd2 c5 21.bc5 Qa5=) 20.Bb2 c6 21.c5 dc5 22.bc5 fe4 23.Nde4 cd5 24.Bg4 Bg4 25.Nd5 Bf5 26.Qc4 Bg7 (26...Be4!? 27.Qe4 Qa5 28.Bc3 Qc5=) 27.h5+= gh5 28.Rh5 Bg6 29.Rh1 Kh8 30.Ke2 Ng5 31.Nd6 Ne6 32.Rd1 (32.Nb7? Qd5 33.Qd5 Nf4 34.Kf1 Nd5–+) 32...Qg5 33.Ne3 Nf4 34.Kf1 (34.Ke1 Ng2 35.Ng2 Qg2+=) 34...Qh4 (better is 34...Qh5 35.Ke1 Bd3 36.Qd3 Nd3 37.Rd3 Qh4–+) 35.Kg1?? (35.f3!?+=) 35...Nh3! 36.Kh2 Nf4 37.Kg1 Bh5 38.Ndf5 Nh3 39.gh3 Qc4 40.Nc4 The isolani on e5 becomes a target 40...Bd1 41.Ng7 Kg7 42.Ne5 Kh6 43.Nc4 Kh5 44.Be5 Bf3 45.Nd2 Bd5 46.f4 Kh4 47.Kf2 Kh3 48.Ke3 Kg4 49.Kd4 Bc6 50.Nc4 Rf4 (50...Rf4 51.Bf4 Kf4–+) 0–1. Sjoberg,Mats (2360) – Volke,Karsten (2395), Kecskemet1, 1991. (=1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0-0 5.e3 d6 6.Be2 e5 7.d3)

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  • 1.b4 (4 players, 1 day/move)
  • 1.b4 (4 players, 10 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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