7.Ba1 Ne4 8.Nf3 Be7 (better is 8...Nd7!?=) 9.Bg7+/– Rg8 10.Bb2 Ng5 11.g3 Nf3 12.Qf3 c6 (12...h6 13.Bd3 Bd7 14.Bh7+-) 13.c4 (13.Bd3!? h5+-) 13...cb5 14.cb5 Qc7 (14...Nd7 15.Qh5+/–) 15.Qd1 (15.Bd3!? h5+-) 15...Bd7 16.Nc3 Bb4 (16...h6 17.Qc2 Rg6 18.Be2+/–) 17.Qb3 (17.Qh5!? h6 18.Qh6 Bf8+-) 17...Ba5 18.Bg2 Bc3 19.Bc3 (19.Qc3?! Qc3 20.Bc3 Bb5=; 19.dc3?! Qc5 20.Bf1 e5+-) 19...Qb6 20.0-0 (better is 20.Qc2!? Bb5 21.Qh7+-) 20...Qb5+/– 21.Qb5 (21.Qc2!? Rg6 22.Ra1+/–) 21...Bb5+= 22.Rb1 Bc6 23.Bf1 Nd7 24.Bb5 Bb5 25.Rb5 b6 26.Bd4 Ke7 27.Bb6 Nb6 (27...Kd6 28.Ba5+=) 28.Rb6+/– Kf6 29.Kg2 Rc8 30.h4 Rc2 31.d4 Ra2 32.Rb7 h5 33.Rb8 Kg7 34.Rb1 Kg6 35.Kf3 Kf5 36.Re1 f6 37.Re2 (37.Rb1!?+/–) 37...Re2+= 38.Ke2 Kg4 39.Ke1 Kf3 40.Kf1 e5 41.Ke1 ed4 42.ed4 f5 43.Kf1 Ke4 (43...f4 44.gf4 Kf4 45.Ke2=) 44.Ke2 Kd4 45.f3 Ke5 46.Ke3 d4 47.Kd3 f4 48.g4 hg4 49.fg4 f3 50.h5?? (50.g5 Kf5=) 50...Kf6 (better is 50...Kf4 51.h6 f2-+) 51.h6= Kg6 52.g5 Kh7 53.Kd2 Kg6 54.Kd3 Kh7 55.Kd2 ½–½. Hal1958 – Mase, playchess.de, 2004.

7.Ba1 h5 8.Be2 h4 (8...Bd6 9.Nf3=) 9.Nf3 h3 10.g3 b6 (10...Nbd7 11.Ng5=) 11.0-0+= Nbd7 12.c4 (12.Nd4 Bb7+=) 12…dc4=. DEFFM – GuestRGWS, freechess.org, 2018.

8.c4 dc4 9.Bc4 Bb4 10.Nf3 Ne4 (10...Qd8 11.0-0=) 11.0-0 (11.Qa4 Bd6+=) 11...c6 (11...f6!?+=) 12.bc6 Nc6 13.Bg7 Rg8 14.Bb2 Bd6 (14...f6 15.Nd4 Qg7 16.g3+-) 15.Nc3 (better 15.Qc2 Rg4 16.Bb5+-) 15...Na5?? (better 15...Nc3 16.Bc3 e5+-) 16.Bb5 Nc6 17.Ne4 f5 (17...Be7 18.Ne5 Qc7+-) 18.Nf6 (18.Nf6 Ke7 19.Nd7 Bd7 20.Qa4+-) 1–0. GuestRRKZ – GuestWTBH, freechess.org, 2017.

8.c4 dc4 9.Bc4 b6 10.Nf3 Bd6 11.0-0 c6 (11...Bb7 12.Bf6 gf6 13.Nc3=) 12.Nc3 (12.Bf6 gf6 13.Nc3 Bb7+=) 12...Bb7 13.d4 Nd5 (13...0-0 14.e4 Bf4 15.Qd3=) 14.Ne4 Be7 15.Ne5 Qc7 16.bc6 (16.Qh5 0-0+=) 16...Bc6 (16...Nc6!? 17.Nc6 Qc6=) 17.Nc6 Nc6 18.Qb3 Nf6 (better 18...Qd7!?+=) 19.Nf6+- Bf6 20.Bb5 0-0? (better 20...Kd8+-) 21.Qc4 Rc8 22.Rc1 1-0. BeepBeepImAJeep (2585) - EveraldoQI (1700), lichess.org, 2018.

8.Be5 Qd8 9.b6 Bd6 10.bc7 Bc7 11.Bc7 Qc7 12.d4=.

8.Be5 Be7 9.Nc3 0-0 10.Qf3 h6 11.Bd3 b6 (11...Ne8 12.Qg3+=) 12.Qg3 Bd6 13.Nf3 Be5 14.Qe5 c6?? (better 14...Bb7+=) 15.Qb8+- cb5 (15...Qb7 16.Qb7 Bb7 17.bc6 Bc6 18.Ne5+-) 16.Qb6 Ne4 (16...Qe7 17.Qb5 Qc7 18.Qb2+-) 17.Ne4 (worse 17.Bb5 Qe7+-; worse 17.Be4 de4 18.Ne4 Qb7+-) 17...de4 18.Be4 Rd8 19.Ke2 (19.d4 Qd6 20.Qb5 Ba6+-) 19...f5 (19...Qe8 20.Rb1+-) 20.Bc6 Qd6 (20...Qe7 21.Ra1 b4 22.Ra4+-) 21.Rb1 g5 (21...Rf8 22.Qb5 f4 23.d4+-) 22.d4 g4 23.Ne5 Kg7 (23...Qf8+-) 24.Qa7 Kf6 (24...Bd7 25.Bd7 Qe7+-) 25.Qf7 Kg5 26.Qg6 Kh4 27.Qh6 1–0. Jeannie – Maunty, internet, 2019.

8.c4 dc4 9.Bc4 Bg7 10.Nf3 0-0 11.0-0 c6 12.Nc3 cb5 13.Nb5 Bd7 14.Nbd4 (14.Be5 Nc6 15.d4 Ne5 16.Ne5 Nd5+=) 14...Nc6 15.Bc3 (better is 15.Qb1+=) 15...Ne5?? (15...Nd4 16.Bd4 b5 17.Be2+=) 16.Be2 (better is 16.Ne5 Ne4 17.Nd7 Qd7 18.Qe2+-) 16...Ne4 (16...Nd5 17.Qb3 Qc7 18.Bb2=) 17.Bb4+= Re8 18.Qc2 (18.Ne5 Be5 19.Qb1 Nf6+=) 18...Nf3= 19.Nf3 Bc6 20.d3 Ng5 21.Nd2 h5 (21...Qd5 22.e4 Qb5 23.Rb1+=) 22.Bc3 e5 23.Qb2 f6 (23...Ne6 24.Ra1= (worse is 24.Be5 Qg5 25.Nf3 Bf3 26.Bf3 Be5-/+)) 24.d4 e4 (24...h4 25.de5 fe5 26.Bc4 Ne6 27.e4+= (27.Be5? Qg5 28.e4 h3-+)) 25.Nc4 Kh7 26.Rd1 Qd5? (better is 26...Bd5+/–) 27.Nb6+- Qf5 28.d5 Bd7 (28...Nf3 29.gf3 ef3 30.Bf1+- (30.dc6?! fe2 31.Qe2 bc6+-)) 29.Nd7 Qd7 30.Bb5 (better is 30.h4 Nf7 31.Bb5 Qg4+-) 30...Qe7?? (better is 30...Qg4 31.Ra1 Rd8+/–) 31.Be8 Qe8 32.Bf6 Bf6 (32...Qd7 33.Bg7 Qg7 34.Qb5+-) 33.Qf6 Nf7 34.d6 Qd7 (34...Qg8+-) 35.Qe7 1–0. zabazaba (1720) – all4nc (1715), gameknot.com, 2014.

8.Nf3 Bg7 9.c4 0-0 10.Be2 Ne4 (10...dc4!? 11.Bc4 Nbd7=) 11.Bg7+= Kg7 12.0-0 c6 (12...dc4 13.Bc4 c6 14.bc6 Nc6 15.d4+=) 13.Qc2 Bd7 14.d3 Ng5 15.Qb2 Kg8 16.Ne5 (better 16.Nfd2 f6 17.d4+-) 16...Qc7?? (better 16...f6 17.Nd7 Nd7+=) 17.f4+- Qd8 18.Nd2 (18.fg5 Qg5 19.Rf4 dc4 20.dc4 f6+-) 18...cb5 19.fg5 Qg5 20.Rf4 h5 (20...bc4 21.Ndf3 c3 22.Qc3+- (22.Ng5?! cb2 23.Rb4 Bc8+-)) 21.Ndf3 (21.c5 f6 22.Nd7 Nd7 23.Qb5 Rd8 24.Qb7 Qe5+-) 21...Qe7 22.Nd7 (22.cb5 Be8 23.Nd2 f6+-) 22...Nd7 23.cb5 Qd6 (23...e5 24.Ra4+-) 24.Ra4 Rc8 25.d4 Nf6 26.Ne5 Kg7 27.Ra7 Qe7 (27...Qb6 28.Ra1+-) 28.Nd3 (28.Bd3 Nd7+-) 28...Ne4 29.Nc5 Qg5 30.Qa3 Qf5 31.Ne4 Qe4 32.Rb7 Qb1 33.Kf2 Qf5 34.Kg1 Qb1 35.Kf2 Qf5 36.Bf3 g5 37.b6 Qc2 (37...g4 38.Rc7 Rg8+-) 38.Be2 Rc3 39.Qe7 Qf5 40.Ke1 Rc1 41.Bd1 Rd1 42.Kd1 Qb1 43.Kd2 Qb2 44.Kd3 Qb3 45.Kd2 Qb2 46.Ke1 Qb1 47.Kf2 Qc2 48.Kg3 h4 49.Kg4 Qf5 50.Kh5 Qg6 51.Kg4 Qf5 52.Kh5 Qg6 53.Kg4 Qf5 54.Kh5 Qh7?? (54...Qg6 55.Kg4=) 55.Kg4 (55.Kg5 Qg6 56.Kh4 Qh7 57.Kg3 Qg6 58.Kh3 Qf5 59.g4 Qf1 60.Kh4 Qf2 61.Kh5 Qh2 62.Qh4 Qh4 63.Kh4 Kg6 64.Rd7 Kh6 65.b7 Kg6 66.b8Q Kg7 67.Qe8 Kh6 68.Qg8 e5 69.g5) 55...Qf5= 56.Kh5 Qg6 57.Kg4 Qf5 58.Kh5 Qg6 59.Kg4 Qf5 60.Kh5 Qg6 61.Kg4 Qf5 62.Kh5 Qg6 63.Kg4 Qf5 64.Kh5 Qg6 65.Kg4 Qf5 66.Kh5 ½–½. DEFFM – DeepBlueMoon, freechess.org, 2019.

8.Nf3 Bg7 9.Be2 0-0 10.0-0 Bd7 11.c4 c6 12.cd5 Nd5 13.Bg7 Kg7 14.Nc3 Nc3 15.dc3 c5 16.Qa1 Qb6 17.c4 Kg8 18.Ne5 Qd6? 19.Bf3 Qc7 20.Ng4+- h5?? 21.Nf6 Kg7 22.Nd7 f6 23.Nf8 Kf8 24.Qf6 Kg8 25.Qg6 Kf8 26.Bh5 Nd7 27.Qf7# 1–0. AArow – sunshinelady, ICS game chess.net, 1998.

8.Bb2 c5 9.bc6 bc6 10.Nf3 Qb6 11.Bf6 gf6 12.Be2 Rg8 13.0-0 Nd7 14.d4 e5 15.de5 (better is 15.c3!? Ba5 16.c4+=) 15...fe5=+ 16.c3 Bd6 17.Qd2 e4 18.Nd4 Ne5 19.Qd1? (better is 19.Kh1=+) 19...Bh3-+ 20.Re1? (20.g3 Bf1 21.Kf1-+) 20...Rg2 21.Kh1 Rf2 22.Rg1 (22.Qa4-+) 22...Nd3! (23.Rg8 Kd7 24.Bg4 Ke7 25.Bh3 Rh2 26.Kg1 Nf2 27.Nf5 Kf6 28.Qd4 Qd4 29.Nd4 Nh3 (29...Rh3?! 30.Kf2 c5 31.Nb5 Rh2 32.Rg2 Rg2 33.Kg2-/+) 30.Kf1 Rh1 31.Ke2 Rb1 32.Nc6 Ng1 33.Kf2 Nf3-+) 0–1. valpa – Innessa, HCL–C2549 playchess.de, 2003.

8.Bc3 Bc3 9.Nc3= 0-0 10.Qa1 c6 (10...e5 11.Nf3 Qd6 12.Be2=+) 11.Qa7 Nbd7 (11...Qd6 12.f4=) 12.d4 (12.bc6 bc6 13.Nf3 e5=) 12...cb5 13.Nb5 e5 14.c3 (14.Nf3 Qe7 15.Qa2 ed4 16.Nfd4 Nb6=) 14...ed4 15.cd4 Ne4 16.Bd3 Qh4 (16...Qg5 17.g3 Qf6 18.Be4 de4 19.Qa3=) 17.g3 (17.Qa2 Qe7 18.f3 Nef6=) 17...Qf6 18.Nh3? (better 18.Be4!? de4 19.Qa3=+) 18...Qf3 19.Be4? (better 19.Rf1 Ne5! 20.de5 Bh3 21.Nd4-+) 19...Qe4-+ (19...de4?! 20.0-0 Qf5 21.Nd6 Qh3 22.Ne4-+) 20.0-0 Nf6?? (better 20...Ne5 21.Nf4 Nf3 22.Kg2 Nd4 23.f3 Qc2 24.Rf2 Nb5 25.Rc2 Na7 26.Nd5 Rd8-+) 21.Nf4= Qf3 22.Nd6 Bh3?? (better 22...Bd7 23.h4 h6 24.Qb7 g5 25.hg5 hg5=) 23.Nh3+- Ng4 (23...Qg4 24.Nf4 g5 25.Nd3+-) 24.Qb7 Ne3 (24...Nf6 25.Ng5 Qg4 26.Rc1+-) 25.Qb1 (better 25.fe3 Qe3 26.Kg2 Qe2 27.Rf2+-) 25…Qg2 0-1. invictus31 (1725) - Prokrita (1615), lichess.org, 2020.

8.Bc3 Bd6 9.d4 c6 10.Nf3 0-0 11.bc6 bc6 12.Qd2 (12.Nbd2!?=+) 12...Ne4-/+ 13.Qd3?? (13.Qc1 f5-/+) 13...f5 (better 13...Qb6 14.Qd1 Nc3 15.Nc3 Qa5-+) 14.Nbd2?? (better 14.Bd2-+) 14...Nc3 (better 14...Ba6 15.Ne4 Bd3 16.Nf6 Qf6 17.Bd3 Nd7-+) 15.Qc3=+ Bd7 (15...Qe7 16.Be2=+) 16.Be2 h5 (better 16...Qe7=+) 17.0-0+= h4 18.Nb3 f4 (18...Be8 19.Ne5+=) 19.Nc5+/- fe3 20.Qe3 (worse 20.fe3 Bc8+=) 20...Qe7 21.Nd7 (better 21.Ne5!? Be8 22.Rb1 Bc5 23.dc5+/- (23.Rb8?! Bd6 24.Rb2 c5+=)) 21...Nd7+= 22.Ne5 (better 22.Nh4 Bh2 23.Kh2 Qh4 24.Kg1+=) 22...c5?? (22...Ne5!? 23.de5 Bc5=+) 23.Nd7?? (better 23.Ng6 Qf6 24.Nf8 Kf8 25.Bg4 cd4 26.Qe6 Qe6 27.Be6+-) 23...Qd7 (23...cd4!? 24.Qd4 Qd7 25.Qh4 Rf6=) 24.dc5+/- Bc7 25.Qg5 (25.Bg4 Rf6+/-) 25...h3 (25...Qc6 26.Bg4+=) 26.gh3 (26.Bg4!? Rf6 27.Re1+-) 26...Rf5+= 27.Qe3 e5?? Black prepares the advance d4 (better 27...Re5 28.Qd3 Qc6=) 28.Bg4+- d4 (28...Qf7 29.Bf5 Qf5 30.Qb3 Qg5 31.Kh1+-) 29.Qe4 Rg5 (29...g6 30.Ra1 Rg5 31.Ra7+-) 30.Kh1 Qf7 (30...Qa4 31.Be6 Kf8 32.c6+-) 31.f3 (31.Ra1 g6 32.Qc6 Kg7+-) 31...Ba5 (31...Qc4 32.Ra1 Kf7 33.Qc6+-) 32.h4 (better 32.Ra1 Qc4 33.Qa8 Kh7 34.Qa5+-) 32...Rg6 (32...Rg4 33.Qg4 Bb4+-) 33.Bh5 Rg1 (33...Qe6 34.Bg6 Qf6 35.Ra1 Qd8 36.Qf5 Qf6 37.Qh5 Qf7 38.Bf7 Kf8 39.Ra5 g6 40.Qh7 Ke7 41.Ra7 Kf6 42.Qg6) 34.Rg1 Qh5 35.Qg4 (better 35.Rg5 Qh6 36.Re5+-) 35...Qh6 (35...Qg4 36.Rg4 Kf7 37.h5+-) 36.h5 (better 36.Qc8 Kh7 37.Qf5 g6 38.Qe5 Qe3+-) 36...Bc3 (36...Qf6+-) 37.Qg6 Qg6 (37...Kf8 38.Qf5 Kg8 39.Qe5+-) 38.Rg6 Kh7 (38...Ba5 39.c6+-) 39.c6 Ba5 40.Re6 Bc7 41.Kg2 Kg8 (41...Bb8 42.Re8 Bc7 43.Rc8+-) 42.Kg3 (better 42.Re7 Ba5 43.Ra7+-) 42...Kf7 43.Rg6 Bb6 (43...e4 44.Kf2 ef3+-) 44.Kg4 Bc7 45.Kf5 Bb8 46.h6 gh6 47.Rh6 Kg7 48.Re6 e4 49.fe4 Bh2 50.Re7 Kf8 (50...Kh6 51.c7 Be5 52.c8Q Bg7 53.Qe8 Kh7 54.Qg6 Kg8 55.Qg7) 51.Ke6 Bb8 (51...Kg8 52.c7 Bc7 53.Rc7 Kf8 54.e5 Kg8 55.Kf6 d3 56.cd3 Kh8 57.Kg6 Kg8 58.Rc8) 52.c7 Bc7 53.Rc7 d3 54.cd3 Kg8 55.Kf6 Kh8 56.Kg6 (56.Kg6 Kg8 57.Rc8) 1-0. invictus31 – DmitriyT, lichess.org, 2018.

8.c4 0-0 9.Nf3 Nbd7 10.Nc3 Nb6 11.cd5 Nbd5 (11...ed5 12.Be2=+) 12.Nd5 (12.Qc2 Re8=) 12...Qd5 (12...ed5 13.Qc2=) 13.Bd4 (13.Qb1 Be7=) 13...c5 (13...Nd7 14.Qc2 e5 15.Bc4=) 14.bc6 bc6 15.Qc2 Ne4? (better 15...Rd8=) 16.Bc4+- Qa5? (better 16...Qf5 17.Bd3 Bd2 18.Ke2 Ba6 19.Ba6 Ng3 20.hg3 Qc2+-) 17.0-0 (better 17.Qe4!? c5 18.Bb2 Qd8+-) 17...Nd2? (better 17...Ng5 18.Ng5 Qg5+=) 18.Nd2+- Bd2 19.Qb2?? (better 19.Ra1 Qb4 20.Ra4+-) 19...Qb4+= 20.Bb3 (20.Bg7 Qb2 21.Bb2 Bb4+=) 20...Bd7 (20...Rd8 21.Bg7 Rd3 22.Bc2 Qb2 23.Bb2+=) 21.Rd1 (21.Bg7!? Rb8 22.Rb1+-) 21...Rb8= 22.Rd2 Qb3 23.Bg7 Qb2 (23...c5 24.h4 Qb2 25.Bb2=) 24.Bb2 (24.Rb2? Ra8 25.Rb7 Kg7-+) 24...Be8 (24...c5 25.f3 Bb5 26.Be5=) 25.h3 (25.f3 f5=) 25...f5 26.Be5 Rb1 27.Kh2 Kf7 28.Ra2 Ke7 (28...Rd1 29.Bd4 Ke7 30.Kg3+=) 29.Ra7 Bd7 30.Kg3 c5 31.Kf3 (31.Rc7 Rc1+=) 31...Rd1 (31...h5 32.Kg3+=) 32.g4 c4 (32...Rh1 33.Kg3+=) 33.Rc7 Rc1 34.Ke2 Rc2 35.Ke1 fg4 (35...h6 36.f3+=) 36.hg4 Kd8 (36...h6 37.e4+=) 37.Rc5 (37.f4 h6+=) 37...Rc1 (better 37...Be8!?+=) 38.Kd2+- Rg1 39.Rc4 Bb5 (39...h6 40.f3+-) 40.Rd4 (40.Rc5 Be8 41.g5 Rg2+-) 40...Ke7 41.Bg3 (41.Bh2 Rg2 42.Bg3 Kf6+-) 41...Bd7 (41...Kf6!?+-) 42.g5+- Ra1 (better 42...Bc6+-) 43.Rh4 Ra2 (43...Be8 44.Rh7 Kf8 45.Bd6 Kg8 46.Re7 Ra2 47.Kc3+-) 44.Kc3 1–0. DEFFM – GuestMCXT, freechess.org, 2016.

8.c4 Kf8 9.Nf3 c6 10.Be2 Ne4 (10...dc4 11.Bc4 Bd7 12.Qb3+=) 11.0-0+= Nd7 12.d3 Nd6 13.cd5 cd5 14.d4 Ba5 15.Nbd2 Nb6 16.Nb3 (16.Qc1 Nd7+/-) 16...Bb4 17.Nc5 Nbc4 18.Qb3 Ba5 19.Bc3 h6 (better 19...Bc3!? 20.Qc3 b6 (worse 20...Nb5 21.Qb4 Nbd6 22.Bc4+-) 21.Bc4 dc4+=) 20.Ne5+/- g6 (20...Bc3!? 21.Qc3 Ne5 22.de5 Nf5+/-) 21.Nc4+- dc4 22.Bc4 Bc3 23.Qc3 b6 24.Na6 Ke7 (24...Bb7!? 25.Nb4+-) 25.Be2 Re8 26.Rc1 Ne4?! (26...Kf8 27.Nc7 Re7 28.Qc6+-) 27.Qc7 (27.Qc6 Nd6 28.Nc7 Bb7 29.Qb6 Rf8+-) 27...Qd7 (27...Qc7 28.Nc7 Rd8 29.Na8+-) 28.Qb6 Kf8 29.Bf3 Nd6 (29...Qd6 30.Qc7 Ba6 31.ba6 (31.Be4?! Qc7 32.Rc7 Bb5+-) 31...Qc7 32.Rc7+-) 30.Bc6 Qe7 (30...Qd8 31.Nc7 Bd7 32.Bd7 Qd7 33.Ne8 Ne8+-) 31.Be8 Ne8 (31...Ke8 32.Rc6 Kf8+-) 32.Rc8 Kg7 33.g3 (33.Qd8 Qd8 34.Rd8 Kf8+-) 33...f6 (33...Nd6 34.Rc7 Qd8+-) 34.Nc7 Nd6 35.Qd6! Qd6 (35...Qd6 36.Ne8 Double attack (36.Ne8 Decoy)) 36.Ne8 Kf8 37.Nd6 Ke7 38.Nc4 Kd7 39.Rc6 (39.Nb6 Kd6 40.Rc6 Ke7 41.Rc7 Ke8 42.Na8 e5 43.b6 e4 44.b7 Kd8 45.b8Q) 39...e5 40.de5 Kd8 41.ef6 Kd7 42.Ne5 Kd8 43.h4 (43.b6 g5 44.b7 g4 45.b8Q) 43...Ke8 (43...g5 44.b6 gh4 45.b7 hg3 46.b8Q) 44.Rc8 1-0. BeepBeepImAJeep (2735) - moady (2055), lichess.org, 2016.

8.Nf3 c5 9.c4 0-0 10.e4 (10.Be2 Ne4=) 10...Nbd7 (better 10...Ne4 11.Bd3 Nd6-/+) 11.Ke2? (better 11.e5 Ne4 12.Bd3=+) 11...de4 (11...dc4?! 12.Qc2-/+) 12.d3?? (12.Ne5-+) 12...Qe8 (better 12...ef3 13.Kf3 b6-+) 13.Nbd2?? (13.Nbd2 ef3 14.Kf3-+; better 13.de4 Ne4 14.Qd3-+). onur604 (2320) - Banjan (2085), lichess.org, 2020.

8.Nf3 Nbd7 9.Be2 +=.

9.Bc4 Bd7 10.Qb3 Qe7 11.Nf3 0-0 (11...c6 12.Bf6 gf6 13.Nc3+=) 12.0-0 (12.Bf6 gf6 13.0-0 Rd8+=) 12...Be8 (12...Bd6 13.Be5=) 13.Ne5 (13.Bf6!? gf6 14.Nc3+/-) 13...Nbd7 14.Rd1 Ne5 15.Be5 c6 (15...Ng4 16.Bg3+=) 16.Bb2 (16.Bf6!? gf6 17.Nc3+=) 16...cb5= 17.Be2 (17.Bf6 Qf6 18.Qb4 bc4 19.Qb7 Ba4=) 17...Bc6 18.Nc3 Attacks the isolani on b5 (18.Bf6 gf6 19.Nc3 Qc5=) 18...Bc3 19.Bc3 Qd6 (19...Ne4 20.Bb4 Qh4 21.g3=) 20.Bf6 (better 20.Bb4!? Qd5 21.Qd5 Nd5 22.Bf8 Kf8 23.Rb1+-) 20...gf6= 21.Bb5 Bb5 (21...Qd5 22.Qd5 Bd5 23.f3=) 22.Qb5+= Qd5 (22...Qc6 23.Qb2+/-) 23.Qd5+/- ed5 24.Rb1 Rb8 (24...Rc8+/-) 25.f4 (better 25.Rb5!?+/-) 25...b5+= 26.Kf2 b4 27.Ke2 Kf8 28.Kd3 Ke7 29.Kd4 Kd6 30.Rb2 (better 30.g4+=) 30...b3? (better 30...f5=) 31.Kc3+- h5 32.Rb3 Rb3 (better 32...Rc8 33.Kd3 Rc1+-) 33.Kb3 Kc5 (33...f5 34.g3+-) 34.Kc3 (better 34.d4 Kb6+-) 34...h4 (34...f5 35.g3+-) 35.g3 (better 35.f5+-) 35...hg3 36.hg3 f5 37.Kb3 d4 (37...Kc6+-) 38.Kb2?? (better 38.ed4 Kd4 39.Kc2+-) 38...de3= 39.de3 Kc4?? (better 39...Kd5 40.Kc3 Ke4=) 40.Kc2+- f6 41.Kd2 Kd5 42.Kd3 Kc5?? (better 42...Ke6 43.Kd4 Kd6+-) 43.e4 Kd6 44.ef5 Ke7 45.Ke3 Kd6 46.Kf3 Kd5 47.Kg4 Ke4 48.Kh5 Kf5 49.Kh4 (better 49.Kh6 Kg4 50.Kg7+-) 49...Kg6 50.Kg4 (50.g4!? Kg7+-) 50...f5+/- 51.Kh4 Kf6?? (better 51...Kh6+/-) 52.Kh5+- Kf7 53.Kg5 Ke6 54.g4 (better 54.Kg6+-) 54...fg4= 55.Kg4 Kf6 56.Kf3 Kf5 57.Kg3 Kf6 58.Kg4 Kg6 59.f5 Kf6 60.Kf4 Kf7 61.Kg5 Kg7 62.f6 Kf7 63.Kf5 Kf8 64.Kg6 Kg8 65.Kf5 Kf7 66.Kg5 Kf8 67.Kg6 Kg8 68.f7 Kf8 69.Kf6 ½-½. AhmedSultanov – jesuskappa, lichess.org, 2019.

9.Bc4 Ne4 10.Nf3 Nd7 11.Qb3 Ba5 12.0-0 Ndc5 (12...Ng5!? 13.Ne5 f6 14.Nd7 Qd7+=) 13.Qa3 Bb6 14.Bg7 Rg8 15.Be5 f6 (15...Ng5 16.Ng5 Qg5 17.Bg3+/-) 16.Bg3 (16.Bd4 Rg7 17.d3 e5 18.de4 ed4 19.ed4 Ne4+/-) 16...e5?? (better 16...Ng3 17.fg3 Ne4+/-) 17.Bg8+- 1-0. AhmedSultanov (1835) - noobstarrr (1815), lichess.org, 2019.

9.Qb3 A) 9...Bd6 10.Nf3 (10.d4 c5 11.bc6 bc6 12.c5 Bc7 13.Qa4 Bb7 14.Nf3 0-0=; 10.Bf6 Qf6 11.cd5 Nc5 12.Qc2 ed5 13.Nc3 Bf5 14.Qa2 d4+=; 10.cd5 ed5 11.Nf3 0-0 12.Be2 Re8 13.0-0 Nc5 14.Bf6 Nb3+=) 10...Nc5 11.Qc2 0-0 12.Bf6 Qf6 13.d4 Ne4 14.c5 Be7+=; B) 9...Be7 10.Nf3 (10.d4 dc4 11.Bc4 Bd6 12.Nf3 Nb6 13.Bd3 Nbd5 14.0-0 Nb4=; 10.Bf6 Nf6 11.d4 0-0 12.Nf3 dc4 13.Bc4 Qd6 14.0-0 Bd7=; 10.Bc3 Nc5 11.Qc2 Nce4 12.Nf3 Ng4 13.Bg7 Rg8 14.Bd4 Ngf2=) 10...0-0 11.d4 Re8 12.c5 Ng4 13.Bd3 b6 14.c6 Ndf6+=; C) 9...Qe7 10.Be2 (10.Nf3 0-0 11.Bc3 Bd6 12.d4 c5 13.bc6 bc6 14.c5 Bc7=; 10.cd5 ed5 11.Nf3 Nc5 12.Qc2 0-0 13.Be2 Qe4 14.Qa2 Ncd7+=; 10.Bc3 Bc3 11.Nc3 0-0 12.cd5 Nc5 13.Qc4 ed5 14.Nd5 Nd5=) 10...Nc5 11.Qc2 e5 12.cd5 Nd5 13.Nc3 Nb6 14.Nf3 e4=.

9.Bc3 A) 9...Bd6 10.Nf3 (10.d4 dc4 11.Bc4 Nb6 12.Bd3 Nfd5 13.Qc2 Qg5 14.g3 Qh5=; 10.Qf3 dc4 11.Bc4 e5 12.d3 Nc5 13.Qe2 Bf5 14.Nf3 Nd3+=; 10.d3 dc4 11.dc4 e5 12.Nf3 0-0 13.Be2 Qe7 14.0-0 Rd8+=) 10...dc4 11.Bc4 Nb6 12.d3 Nc4 13.dc4 0-0 14.0-0 Qe7=; B) 9...Be7 10.Nf3 (10.d4 0-0 11.Qf3 Ne4 12.Bd3 Nc3 13.Nc3 dc4 14.Be4 Nf6-/+; 10.Qf3 dc4 11.Bc4 Nb6 12.Be2 Nbd5 13.Be5 0-0 14.d4 Bb4+=; 10.d3 0-0 11.Nd2 e5 12.Qf3 c6 13.Be2 Qc7 14.bc6 bc6+=) 10...0-0 11.d4 Ne4 12.Qc2 Ndf6 13.Bd3 Nc3 14.Nc3 c5+=; C) 9...Qe7 10.Qb3 (10.Nf3 0-0 11.Bb4 Qb4 12.cd5 ed5 13.Be2 Nb6 14.0-0 Bf5+=; 10.cd5 ed5 11.Nf3 Bd6 12.Be2 0-0 13.0-0 Re8 14.Nd4 Nb6+=; 10.Qf3 Bc3 11.Nc3 Nb6 12.Qg3 dc4 13.Qg7 Rg8 14.Qh6 e5+=) 10...Bd6 11.d4 c5 12.bc6 bc6 13.Nf3 0-0 14.c5 Bc7=.

9.cd5 ed5 10.Nf3 (10.Be2 0-0 11.Nf3 Re8 12.0-0 Bd6 13.Bd4 c5 14.bc6 bc6+=) 10...0-0 11.Be2 Re8 12.0-0 Qe7 13.Qc2 Bd6 14.Bd4 Kh8 =.

9.Nf3 0-0 10.cd5 (10.Bc3 Qe7 11.Bb4 Qb4 12.cd5 Nd5 13.Qc2 N7f6 14.Be2 Bd7=; 10.Nc3 Nb6 11.cd5 ed5 12.Be2 Re8 13.0-0 Qe7 14.d3 Bd6+=; 10.Qc2 Re8 11.Bc3 Bd6 12.d4 c5 13.bc6 bc6 14.c5 Bc7=) 10...Nd5 11.Nc3 N5f6 12.Qc2 Bd6 13.d4 e5 14.Be2 ed4 =.

9.Nf3 Nb6 10.Bc3 (10.Qb3 Bd6 11.cd5 Nbd5 12.Be5 0-0 13.d4 Bb4 14.Nbd2 Ne4=; 10.cd5 Nbd5 11.Be2 Bd7 12.Be5 0-0 13.Nc3 Bd6 14.0-0 Be5=; 10.Qc2 Nc4 11.Bc4 dc4 12.Qc4 Ba5 13.Bc3 Bb6 14.d3 0-0=) 10...Bd6 11.d3 dc4 12.dc4 Nbd7 13.Bd3 0-0 14.0-0 Nc5 =.

9.Nf3 dc4 10.Qc2 (10.Bc4 Nb6 11.Be2 0-0 12.0-0 Nfd5 13.Bd4 Bd7 14.e4 Nf4=; 10.Bc3 Bd6 11.Bc4 Nb6 12.d3 Nc4 13.dc4 0-0 14.0-0 Qe7=; 10.Qc1 Qe7 11.Qc4 Bd6 12.d4 Nb6 13.Qc2 0-0 14.Bd3 Bd7=) 10...Bd6 11.Bc4 Nb6 12.e4 Bf4 13.0-0 Nc4 14.Qc4 0-0 +=.

9.Nf3 h6 10.Be2 (10.cd5 ed5 11.Be2 Bd6 12.0-0 0-0 13.Bd4 c5 14.bc6 bc6=; 10.Bc3 Qe7 11.Bb4 Qb4 12.cd5 Nd5 13.Qc2 e5 14.Nc3 N5f6=; 10.Nc3 Nb6 11.cd5 ed5 12.Be2 0-0 13.0-0 Bd6 14.Na4 Na4=; 10.Ne5 Bd6 11.Nd7 Bd7 12.cd5 ed5 13.Qf3 Be6 14.Bf6 Qf6=) 10...0-0 (10...dc4 11.Bc4 0-0 12.0-0 Nb6 13.d3 Nc4 14.dc4 Qe7=) 11.0-0 (11.cd5 ed5 12.0-0 Re8 13.Qc2 Bd6 14.Bd4 Qe7=) 11...c6 (11...dc4 12.Bc4 Nb6 13.d3 Nc4 14.dc4 Qe7=) 12.d4 (12.Nc3 Bd6= (12...dc4 13.bc6 bc6 14.Bc4 Bb7=) 13.d4 dc4 14.Bc4 Nb6=; 12.cd5 Nd5 13.Nc3 N7f6 14.Nd5 Nd5+=) 12...Ne4 (12...Qa5 13.Nbd2 (13.Bb2 dc4 14.bc6 bc6=) 13...cb5 A) 14.cd5 Nd5= (14...ed5 15.Qc2+=); B) 14.cb5 Qc7=; 12...cb5 13.Qb3 Qa5 14.cb5 Be7+=) 13.Nbd2 (13.Qa4 Qa5 14.Qa5 Ba5=; 13.Qb3 Qa5 14.Bb2 Nb6+=) 13...Nd2 (13...Qa5!? 14.bc6 Nd2= (14...bc6 15.Ne4 de4+=); 13...cb5 14.cb5 Nd2=) 14.Nd2= Bd2 (14...cb5!? 15.cd5 ed5=) 15.Qd2+/– f5 (15...Nf6 16.f3+/–) 16.Bc3 Nf6 17.f3 g5 (17...dc4 18.Bc4 cb5 19.Bb5+/–) 18.bc6 bc6 19.Ba5 Qd7 20.Bb4 Re8 21.Qb2 (21.Ra1 Bb7+-) 21...Kf7 (21...Ba6!?+=) 22.c5 Bb7 23.Ba5 Ra8 24.Qb6 (24.Bc3 Qc8 25.Ra1 Ba6+/–) 24...Ra6?? (better is 24...Qc8+=) 25.Ba6+- (25.Ba6 Ba6 26.Qa6+-) 1–0. pzn2pawn (1860) – Lukavich, redhotpawn.com, 2016.

9.Be2= c5 10.0-0 Nbd7 11.c3 Ba5 12.d3 (12.c4 dc4 13.Bc4 Nb6+=) 12...e5 13.Nbd2 Bc7 (13...Re8 14.c4=) 14.Qc2 Qe7 15.e4 Nb6 Black prepares d4 16.c4 (16.Bb2 Nh5=) 16...d4 17.Bb2 Bg4 (17...Nh5 18.Ra1=) 18.Ra1 Ra8 19.Ra8 Na8 20.h3 (20.Qa4 Nb6 21.Qd1 Qd6=) 20...Be6 21.Nb3 b6 (21...h6 22.Bc1=) 22.Bd1 (22.Bc1 Bd6=) 22...Bd6 23.Nbd2 Nc7 24.Nf1 g6 (24...Nd7 25.Ng3=) 25.Qa4 (25.Bc1 Bd7=) 25...Qd8 (25...Kg7 26.Bc1=) 26.Qa7 (26.Bc1 Nd7=) 26...Nce8 (26...Nd7 27.Bc1=) 27.Bc1 Qb8 28.Qa3 (28.Qa4 Be7=) 28...Ng7 (28...Be7 29.Ng3=) 29.N1h2 (29.Bg5 Nd7=) 29...Qb7 (29...Bc8 30.Bg5 Be7 31.Bh4=) 30.Bg5 Nge8 31.Bh4 Kg7 32.Bg3 Qb8 33.Qc1 Bd7 34.Ne1 Kg8 35.Qh6+= Ng7 36.Nhf3 Ne6= ½–½. Gretencord,Ulrich (1925) – Weidemann,Uwe (1700), DESC, 2001.

9.Be2 c5 10.bc6 bc6 11.0-0 c5 12.c4 Nc6 13.d4 cd4 14.Nd4 Bb7 15.Qb3 Qd6 16.Nc6 Bc6 17.Rd1 Rb8 18.Bf6 gf6 19.cd5 Bd5 20.Qc2 Qe5 21.Nd2 Bd2 22.Qd2 f5 23.Bf1 Rb2 24.Qa5 Ra2 (24...f4!? 25.Qd8 Kg7=) 25.Qd8+= Kg7 26.Qg5 Kf8 27.h4 (27.Rc1 Ra8+=) 27...Ra8 28.Rc1 Qg7 29.Qf4 h6 30.Rc7 Qf6 31.f3 (31.Kh2 e5 32.Qg3 Qd6=) 31...Kg7 32.Qg3 Kh7 33.Qf4 (33.Bb5 e5=) 33...Rg8 (33...e5 34.Qb4=+) 34.e4 (34.Bd3 Qg7 35.g4 Rd8+=) 34...Qd4 35.Kh2 Rg7 (worse 35...fe4 36.Bd3 (36.Qf7?! Rg7 37.Qg7 Qg7 38.Rg7 Kg7=; 36.Rf7?! Rg7=) 36...Rg7 37.Be4 Be4 38.Rf7 (38.fe4?? Qb2 39.Qf3 Qe5 40.Kh3 Qc7-+; 38.Qe4?! Qe4 39.fe4 Rg4=) 38...Rf7 39.Qf7 Kh8 40.Qf8 (40.fe4?! Qe4 41.Qf6 Kh7=) 40...Kh7 41.Qf4+/- (41.fe4?! Qe4 42.Qf7 Kh8=)) 36.g3 (better 36.Rd7!?=) 36...fe4-/+ 37.Bg2 ef3?? (better 37...f5=+) 38.Qd4+- fg2 39.Qd3 (39.Qf6 g1Q 40.Kg1 Rg3 41.Kh2 Rg2 42.Kh3 Rg7 43.Rf7 Bg2 44.Kh2 Rf7 45.Qf7 Kh8 46.Kg2 h5 47.Qh5 Kg7 48.Qe5 Kg6 49.h5 Kf7 50.h6 Ke7 51.h7 Kd7 52.h8Q Kc6 53.Qc8 Kb6 54.Qec5) 39...f5 40.Rg7 Kg7 41.Kg1 Kf6 42.Qe3 (42.Qd4 Kg6+-) 42...Kg6 43.Qe5 Kh5 (43...Kf7 44.h5 Bf3 45.Qc7 Ke8 46.Qf4 Bh5 47.Qh6+-) 44.Qf4 Kg6 45.Qe5 Kh5 46.Qf6 Kg4 (46...Be4 47.Qf7 Kg4 48.Qg6 Kf3 49.Qh6+-) 47.Qg6 Kh3 48.Qh6 f4 (48...Kg3 49.h5 Kf3+-) 49.Qf4 Bf3 (49...Bb7 50.h5 e5 51.Qh4) 50.Qe5 (50.Qf3 e5 51.h5 e4 52.Qf4 e3 53.Qh4) 50...Bg4 51.h5 Bh5 (51...Bf3 52.Qg5 Bh5 53.Qh4) 52.Qg5 Bg4 (52...e5 53.Qh4) 53.Qh4 1-0. opperwezen (2745) - Chess_Network (2545), lichess.org, 2017.

9.Be2 Nbd7 10.0-0 c5 11.c4 dc4 12.Bc4 b6 13.Nc3 Bb7 14.d4 cd4 15.Nd4 Ne5 (15...Bc3 16.Bc3 Qc7 17.Nc6 Bc6 18.bc6 Qc6 19.Qd3-/+) 16.Be2 Nd5 (16...Qc7 17.Qb3 Bc5 18.Na4=) 17.Nd5 (17.Ne6!? fe6 18.Nd5 Bd5 19.Be5+/–) 17...Qd5= 18.Nf3 Qd1 19.Rd1 Nf3 20.Bf3 Bf3 21.gf3 Bc5 22.Rd7 f6 23.Kf1 (23.Bd4 Bd4 24.ed4 e5+=) 23...e5 24.Ke2 (24.Ra7!?+=) 24...Ra8-/+ 25.Bc3 Ra2 26.Bd2 Rb2 27.e4 Rb5 28.Be3 (28.f4 ef4 29.Bf4 Rb2 30.Rd2 Rd2 31.Bd2 Kf7-/+) 28...Rb2-+ 29.Ke1? (better is 29.Kd3-+) 29...Be3 30.fe3 Rh2 31.Rb7 Rb2 32.Kd1 (32.Rb8 Kf7-+) 32...h5 33.Ke1 h4 34.Kf1 b5 35.Rb6 b4 36.Rb7 b3 37.Kg1 Rb1 38.Kg2 b2 39.Kh2 Rf1 40.Rb2 Rf3 41.Re2 Kf7 42.Kg2 Rg3 43.Kh2 (43.Kf2 g5-+) 43...Kg6 44.Re1 Kh5 45.Re2 Kg4 46.Re1 Kf3 0–1. cristero (2490) – pushtiu (2245), net–chess.com, 2013.

9.Be2 0-0 10.0-0 c6 11.c4 Qa5 (11...dc4!? 12.Bc4 cb5 13.Bb5 Qa5 14.Bf6 Qb5=) 12.Bf6+= gf6 13.Qc2 Kg7 14.Nd4 Rh8 15.f4 Nd7? (better 15...dc4!? 16.bc6 Nc6 17.Nc6 bc6 18.Bc4 Rd8+=) 16.bc6+- bc6 (16...Nb6 17.cd5 Nd5 18.Rc1+-) 17.Nc6 Qc5 18.Nb4 Qb4 19.cd5 ed5 20.Rf3 Bb7 21.Rg3 Kf8 22.Nc3 d4 23.Nb5 de3? (23...Nc5 24.Nd6 Bc6+-) 24.Qc7 (24.Re3?! Qf4 25.Bf3 Bf3 26.Rf3 Qe5+-; 24.de3?! Rg8 25.Rg8 Kg8+-) 24...Nc5 (24...Qe7 25.Re3 Ne5 26.fe5 Qc7 27.Nc7 fe5 28.Re5 Bc6+-) 25.Qd8 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Be2 0-0 10.0-0 Nbd7 11.d4 Nb6 12.Nbd2 Bd7 13.Ne5 Be8 14.c3 Bd6 15.Qb1 Nbd7 (15...Qe7!?=) 16.c4+= dc4 17.Ndc4 Nb6 (17...Be7!?+=) 18.Nb6+/- cb6 19.Bd3 Nd5 20.Bh7 Kh8 21.Bd3 Nb4 (21...Kg8 22.Rc1 f6+/-) 22.Be2+/- Be5 (22...Nd5!?+/-) 23.de5+- Qd5?? (better 23...Nd5+-) 24.Qb4 (24.Qb4 Qc5 25.Qd4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

8.c4 Bb7 9.Nf3 dc4 10.Bc4 Be7 11.Be2 Nbd7 12.0-0 0-0 13.d4 Bd6 14.Nbd2 Qe7 15.Nc4 e5?? (better 15...Ra8=) 16.de5+- (16.Nce5?! Ra8+/-; 16.Nfe5?! Bd5+/-) 16...Be5 17.Nfe5 (worse 17.Be5 Bf3 18.Bf6 Nf6 19.Bf3 Qb4+-) 17...Ne5 18.Be5 1-0. BeepBeepImAJeep (2550) - E_Kudashoff (2325), lichess.org, 2017.

8.c4 dc4 9.Bc4 Be7 10.Nf3 0-0 11.0-0 Nbd7 12.d4 Bb7 13.Nbd2 c5 14.Qc2 cd4 15.Nd4 Nc5 16.N2b3 Qa8 17.f3 Nb3 18.Bb3 Nd5 19.Kf2 (19.Qd3 Rd8=) 19...Bf6 20.Bb2 Bd4 (20...Qb8 21.e4 Qf4 22.Qe2 Qh4 23.Kg1=+) 21.Bd4= (worse 21.ed4 Qb8 22.Rh1 Qd6-/+) 21...Qc8 (better 21...Qb8!?=) 22.Qb2+- Qd7 (22...f6!?+-) 23.Bg7+- Qb5? (better 23...Rc8 24.Bh8 f5+-) 24.Bh8?? (better 24.Bh6 f6 25.Bf8 Kf8 26.Rb1+-) 24...f6-+ 25.Qa3 (25.Bf6 Rf6 26.Rd1 Rf7-+) 25...Qc5 (better 25...Ra8!? 26.Qb2 Kh8 27.Rb1-+) 26.Qc5 bc5 27.e4 Kh8 (27...Nb4 28.Ke3 Kh8 29.Rc1-+) 28.ed5 ed5 29.Ra1 (29.Re1 Rf7-+) 29...c4 30.Bc2 Rf7 (30...d4 31.Ra7 Rb8 32.Bf5-+) 31.Re1 (31.Rd1 Bc6-+) 31...Kg7 (31...d4 32.Bf5 Rc7 33.Re8 Kg7 34.Rd8-+) 32.Re6 (32.Rd1 Bc6-+) 32...h6 (32...d4 33.Rd6 d3 34.Ba4-+) 33.Rd6 Re7 34.Kg3 Kf7 35.Bf5 (35.Kf4 Rc7 36.Rd8 Kg7-/+) 35...Re5 (35...c3 36.Rd8-+) 36.Rd7 (better 36.Kf4-/+) 36...Re7 (36...Ke8 37.Rb7 Rf5 38.Rc7-+) 37.Bg6 (37.Rd6 c3 38.Rd8-+) 37...Kf8-/+ (37...Kg6?! 38.Re7 Bc6 39.Rc7+=) 38.Rd8 (38.Rd6 Rc7 39.Rf6 Kg7-/+) 38...Kg7-+ 39.Bf5 Rc7 40.Kf4 c3 41.Bc2 Bc6 42.Rd6 Bb7 43.Kf5 Attacks the isolani on f6 (43.Rd8 h5 44.g4-/+) 43...Bc8 (better 43...Re7!?-+) 44.Kf4=+ Bb7 45.g4 (45.Rd8 Rc4 46.Ke3-/+) 45...Re7 (45...Rc4!? 46.Ke3 Bc6 47.f4-/+) 46.h4 Rf7 47.Kg3 Re7 48.g5?? (48.Kf4 Rc7 49.Ke3-/+) 48...hg5-+ 49.hg5 fg5 50.Kg4 Kf7 (50...Re2!? 51.Bb3-+) 51.Kg5 Re5 52.Kf4 Re2 53.Bg6 (53.Rd7 Kf6 54.Bf5 Rb2 55.Rd6 Ke7 56.Rd7 Ke8=+) 53...Ke7-+ 54.Rb6 c2 (better 54...Rb2 55.Rb2 cb2=+) 55.Rb7= Kd6 (55...Kd6 56.Bc2 Rc2=) 0–1. GuestBBFM – GuestNHSD, freechess.org, 2017.

8.c4 Bd6 9.cd5 Nd5 (9...ed5!? 10.Nf3 0-0=) 10.Bg7 Rg8 11.Bb2 Bb7 12.Nf3 Nd7 13.Na3 Nc5 14.Nc4 Nd3?? (better 14...f6+/-) 1-0. DEFFM – GuestYFMB, freechess.org, 2020.

8.Nf3 Bd7 9.Ne5 Bd6 10.Nd7 Qd7 (10...Nbd7 11.Be2=) 11.c4 Be7 12.Nc3 dc4 13.Bc4 0-0 14.0-0 Rd8 15.d4 Qd6 16.Qf3 Nbd7 17.Rb1 Rb8 18.Ne4 (18.Ne4 Ne4 19.Qe4+=) 1–0. algernon (2265) – mrrook (2405), net–chess.com, 2013.

8.Nf3 Nbd7 9.Be2 =.

8.Nf3 Ne4 9.Be2 Qd7 (9...Bd6 10.d3 Nf6 11.Be5=) 10.0-0 (10.Ne5 Qe7 11.Nc3+=) 10...Bd6 (better 10...f6!?+=) 11.Bg7+- Rg8 12.Bb2 (12.Bd4 f6+-) 12...Qe7 (12...f6 13.d3 Qg7 14.Ne1+-) 13.d3 h5?? (better 13...Nc5+-) 14.de4+- de4 15.Ne5 (15.Nfd2 Qh4 16.f4 ef3 17.Nf3 Qe4+-) 15...h4?? (better 15...Qg5 16.g3 Be5 17.Be5 Qe5+=) 16.f4 (16.Ng4 Nd7 17.Nd2 f5+-) 16...h3 (16...ef3 17.Bf3 h3 18.g3+-) 17.g4 (17.g3 Bb7+-) 17...f6 18.Nc6 (better 18.Nc4!? Nd7+-) 18...Nc6 19.bc6 f5 20.g5 (20.Kh1 Bc5+-) 20...Bc5? (20...Rg5 21.Kh1 Rg2+-) 21.Bh5 (21.Kf2 Qd6 22.Be5 Qe7+-) 21...Kf8 22.Bd4 (22.Kf2 Ba6 23.Bf6 Qd6+-) 22...Ba6 (22...Bd4 23.ed4 Qd6 24.Be2+-) 23.Rf2 (23.Bc5 bc5 24.Rf2 Bb5+-) 23...Bd4 24.Qd4 (24.ed4 Rg5 25.fg5 Qg5 26.Kh1 e3+-) 24...Rh8 (24...Bb5+-) 25.Be2 (25.Qh8) 25...Be2 (25...e5 26.Qd7 (26.Qe5?! Qe5 27.fe5 Be2+-) 26...Be2 27.Qf5 (worse 27.Re2 Qd7 28.cd7 Ke7+-) 27...Ke8 28.Re2+-) 26.Re2 (better 26.Qh8 Kf7 27.Re2+-) 26...Rh4 (26...e5 27.Qd5+-) 27.Nd2 (27.Rd2!? Kf7+-) 27...Rg4 (27...e5 28.Qd5+-) 28.Kh1 Qe8 (28...e5 29.Qd5 Rh4 30.Rf2 ef4 31.Qf5 Kg8 32.g6+-) 29.Qh8 (29.Nc4 Kg8+-) 29...Kf7 (29...Ke7 30.Qf6 Kd6 31.Nc4 Kc6 32.Ne5 Kb7 33.Ng4 fg4 34.Re1+-) 30.Qe8 (30.Qh7!? Kf8 31.Nc4 Qf7 32.Qh3 Qg7+-) 30...Ke8 31.Nc4 Ke7 (31...Rh4 32.Rd2 Rh7 33.Ne5+-) 32.Ne5 Rh4 (32...Rg2 33.Rg2 hg2 34.Kg2 b5+-) 33.Ng6 (33.Ng6 Kd6 34.Rd2 Kc6 35.Nh4+-) 1–0. GuestVMTQ – GuestFCXD, freechess.org, 2016.

9.Bb2 A) 9...Bb4 A1) 10.c3 Bd6 11.Ba3 0-0 12.d4 Ba3 13.Na3 Qd6; A2) 10.Bd3 0-0 (10...Bd6 11.Ba3 0-0 12.Bd6 Qd6 13.Be2 c5;10...Ne4 11.Ne5 0-0 12.Qh5 f5 13.f3 Nf6; 10...c5 11.bc6 Nc612.0-0 0-0 13.Nd4 Qe7; 10...c6 11.Nc3 0-0 12.0-0 c5 13.Re1 Nbd7) 11.Ng5 g6 12.0-0 Nbd7 13.Be2 Qe7; A3) 10.Nc3 0-0 (10...Bd6 11.Bd3 e5 12.Bf5 0-0 13.0-0 c5)11.Be2 Nbd7 12.0-0 Qe7 13.Nd4 e5; A4) 10.Ba3 Ba3 11.Na3 0-0 12.d4 Qd6 13.Qa1 Nbd7; A5) 10.Be2 0-0 (10...Bd6 11.0-0 0-0 12.d3 c6 13.c4 Qe7;10...Nbd7 11.Nd4 0-0 12.0-0 Qe7 13.Nc6 Bc6; 10...c5 11.0-0 0-012.Nc3 Nbd7 13.Na2 Ba5; 10...Be7 11.0-0 0-0 12.d4 c6 13.bc6 Nc6) 11.0-0 Bd6 12.Nc3 e5 13.Qa1 Nbd7; B) 9...Nbd7 B1) 10.Nd4 Bd6 (10...Ne4 11.d3 Nd6 12.Qf3 Qe7 13.Ba3 Ne5;10...Nc5 11.Be2 e5 12.Nf3 e4 13.Nd4 Qd7) 11.Be2 0-0 12.0-0 Qe713.Nc6 Bc6; B2) 10.d4 c5 (10...c6 11.bc6 Bc6 12.Bd3 b5 13.0-0 Bd6;10...Bb4 11.c3 Bd6 12.Ba3 0-0 13.Bd3 Ba3) 11.bc6 Bc6 12.Bd3 Bd613.Ba3 Ba3; B3) 10.Be2 Bd6 (10...Bb4 11.0-0 0-0 12.Nd4 Qe7 13.Nc6 Bc6;10...Be7 11.d4 0-0 12.0-0 c6 13.bc6 Bc6) 11.Nd4 Nc5 12.f4 Qe713.0-0 Na4; C) 9...Be7 C1) 10.Bd3 0-0 (10...c5 11.bc6 Nc6 12.0-0 0-0 13.Qe2 Nb4;10...Bd6 11.0-0 c5 12.bc6 Nc6 13.Na3 0-0) 11.0-0 c5 12.bc6 Nc613.Qe2 Qd6; C2) 10.Bf6 Bf6 11.d4 0-0 12.Bd3 c5 13.bc6 Nc6; C3) 10.Na3 Nbd7 (10...Bd6 11.Be2 Qe7 12.Qc1 0-0 13.Nd4 Ne4;10...0-0 11.Be2 Bd6 12.0-0 Qe7 13.Qa1 Nbd7; 10...c5 11.bc6 Nc612.Nb5 0-0 13.Be2 Na5) 11.Be2 0-0 12.0-0 Bd6 13.d4 Qe7; C4) 10.Ne5 0-0 (10...Nbd7 11.Nc6 Bc6 12.bc6 Nc5 13.Bb5 0-0)11.Qf3 Ne4 12.Qg4 f5 13.Qh5 Nd7; C5) 10.Be2 0-0 (10...c5 11.bc6 Nc6 12.Nc3 0-0 13.0-0 Qd7;10...c6 11.Ne5 0-0 12.0-0 Qc7 13.f4 cb5) 11.0-0 c5 12.bc6 Nc613.Nc3 d4; D) 9...Bd6 D1) 10.Ba3 0-0 (10...Ba3 11.Na3 0-0 12.d4 Qd6 13.Nb1 c5;10...c5 11.bc6 Nc6 12.d4 0-0 13.Bd3 Nb4; 10...c6 11.Bd6 Qd612.bc6 Nc6 13.Nc3 0-0; 10...Ne4 11.Bd6 Qd6 12.Be2 0-0 13.c3 c5)11.Bd6 Qd6 12.Be2 c5 13.bc6 Nc6; D2) 10.Be5 0-0 (10...c5 11.bc6 Nc6 12.Bb5 Be5 13.Ne5 Qd6)11.Bd6 Qd6 12.d4 c5 13.bc6 Nc6; D3) 10.Be2 0-0 (10...c5 11.bc6 Nc6 12.Na3 Bb4 13.Nb5 0-0)11.0-0 c5 12.bc6 Nc6 13.Na3 Be7; D4) 10.d4 c5 (10...0-0 11.Bd3 c6 12.bc6 Nc6 13.0-0 Qe7;10...c6 11.bc6 Nc6 12.Ba3 0-0 13.Bd3 Nb4; 10...Qe7 11.Bd3 0-012.0-0 c6 13.Nc3 c5) 11.bc6 Nc6 12.Ba3 0-0 13.Bd3 Ba3.

9.c4 Nbd7 10.Nc3 Bb4 (10...Bd6 11.cd5 ed5 12.d4=) 11.cd5 Nd5 (11...ed5!? 12.Be2 0-0=) 12.Nd5+= Bd5 13.Bg7 Rg8 14.Bb2 (14.Bd4 Bd6+=) 14...Qa8 (14...Bf3 15.gf3 Nc5+=) 15.Nh4 (15.h4!?+-) 15...Nc5 (15...Qa2 16.Qc1 Nc5-/+) 16.Qa1?? (16.f3 Nb3 17.Qc2 Nd2=) 16...Ba5?? (better 16...Bd2 17.Ke2 Qd8-+) 17.Bc3= Nb3 18.Qb2 (18.Qa3 Rg4 19.Nf3 Bf3 20.Qb3 Bg2=) 18...Rg4 19.Ba5 Qa5 The backward pawn on d2 becomes a target 20.Nf3 Ra4 21.Bd3?? (21.Be2 Ra1 22.Bd1 Qb5 23.Qh8 Ke7 24.Qg7 Bf3 25.gf3-/+) 21...Ra1-+ 22.Bb1 (22.Ke2 Rh1 23.e4 Nc1 24.Ke3 Nd3 25.Kd3 Ba2-+) 22...Bf3 23.gf3 (23.Qb3?? Qa4 24.gf3 Qb3-+) 23...Nd2 (better 23...Qb5 24.h4 h5 25.Rg1-+) 24.Ke2 (24.Qa1 Nf3 25.Ke2 Qa1 26.Kf3 Qf6 27.Ke2 Qb2 28.Kf3 Qb5 29.Be4-+) 24...Nc4 (better 24...Nb1 25.Qh8 Ke7-+) 25.Qb3?? (better 25.Qh8 Ke7 26.Rd1=+) 25...Qd2-+ 26.Kf1 Qc1 (better 26...Na5 27.Qa4 Ra4-+) 27.Kg2= Rb1?? (27...Nd2 28.Rc1 Nb3 29.Rd1=+) 28.Rc1?? (better 28.Qb1 Qb1 29.Rb1+-) 28...Rb3=+ 29.Rc4 Rb5 (29...Kd7 30.Rd4 Ke7 31.Rc4=+) 30.Rc7 Rg5 (30...Kf8 31.e4=+) 31.Kf1 b5 (31...Rh5 32.Kg2=+) 32.Ke2 (32.f4 Rf5=) 32...Rd5 (32...Rh5 33.Rb7=+) 33.e4= Rd7 (33...Rh5 34.Rb7=) 34.Rc8 Ke7 (34...Rd8!? 35.Rc5 b4=) 35.Rb8+= 1–0. GuestJGQY – GuestXQQK, freechess.org, 2020.

9.Bd3 A) 9...Bd6 A1) 10.Nd4 0-0 (10...e5 11.Nf5 0-0 12.0-0 c5 13.bc6 Nc6) 11.f4 c5 12.bc6 Nc6 13.0-0 Nd4; A2) 10.Be5 0-0 (10...Be5 11.Ne5 Qd6 12.Ng4 Nbd7 13.0-0 0-0) 11.Bd6 Qd6 12.0-0 e5 13.Be2 d4; A3) 10.0-0 c5 (10...0-0 11.Be5 c5 12.Be2 Be5 13.Ne5 Nbd7; 10...Nbd7 11.Nd4 Nc5 12.Be2 0-0 13.f4 Qe7) 11.bc6 Nc6 12.Nc3 e5 13.Nh4 0-0; A4) 10.Ne5 0-0 (10...Nbd7 11.Nd7 Qd7 12.Bf6 gf6 13.Qg4 f5; 10...c5 11.bc6 Nc6 12.Bb5 Be5 13.Be5 0-0) 11.0-0 c5 12.bc6 Nc6 13.f4 Bc5; B) 9...Nbd7 10.Ne5 (10.0-0 Bd6 11.Nd4 Qa8 12.Nc3 e5 13.Nf5 0-0) 10...Ne5 (10...Bd6 11.Nd7 Qd7 12.Bf6 gf6 13.Qg4 f5; 10...Be7 11.0-0 0-0 12.Qf3 Ne4 13.Qg4 f5) 11.Be5 Bd6 12.Bd6 Qd6 13.Be2 0-0.

9.Be2 Bd6 10.0-0 (10.Be5 Be5 (10...0-0 11.Bd6 Qd6 12.0-0 c5 13.bc6 Nc6; 10...c5 11.bc6 Nc6 12.Bd6 Qd6 13.Nc3 0-0) 11.Ne5 c5 12.bc6 Nc6 13.Nc6 Bc6) 10...0-0 (10...Nbd7 11.Nd4 0-0 12.Nc3 Qe7 13.f4 Ra8; 10...c5 11.bc6 Nc6 12.Nc3 0-0 13.Nb5 Bc5) 11.d4 (11.Be5 c5 12.d4 Be5 13.Ne5 Nbd7) 11...Nbd7 (11...c6 12.Bb2 Qc7 13.bc6 Nc6) 12.Nbd2 (12.c4 Qe7 13.Nbd2 Ra8) 12...Qe7 (12...c6 13.bc6 Bc6) 13.c4 Ra8 14.Qc2 Qd8 (14...Ne4 15.cd5 ed5 16.Ne4 de4 17.Nd2=) 15.Bc3 Ra3 16.Qb2 (16.Bb2 Ra8=) 16...Ra8 (16...Qa8 17.Ra1=) 17.Bb4 Qe7 (17...Ne4 18.Bd6 Nd6 19.cd5 Bd5 20.Ra1=) 18.Bd6 Qd6 19.Ra1 Qf8 20.h3 Ra1 21.Qa1 Qa8 22.Qc1 Qa4 (22...dc4 23.Bc4 h6 24.Bd3+=) 23.c5 (23.cd5 Nd5 24.e4 Nf4+-) 23...bc5+= 24.dc5 c6 25.Nd4 Ne5 (25...g6!?+=) 26.b6+- Ba6 (26...h5!?+-) 27.Ba6+- Qa6 28.Qc3 Nfd7 29.N2b3 Qd3?? (better 29...Nb6 30.cb6 Qb6+-) 30.Qa5 Nf3 (30...Nf8+-) 31.Nf3 Qb3 32.Qa8 (32.Qa8 Nf8 33.b7+-) 1–0. Bennett,Hilton (2065) – Stevenson,Michael, All Canterbury Open, New Zealand, 2003.

9.Be2 Nbd7 A) 10.Bb2 Bd6 (10...Bb4 11.0-0 0-0 12.Nd4 Qe7 13.Nc6 Bc6;10...Be7 11.Ba3 Ba3 12.Na3 Qe7 13.Nb1 0-0) 11.0-0 0-0 12.Nd4 Qe713.Nc6 Bc6; B) 10.Ne5 Bc5 (10...Bd6 11.f4 0-0 12.0-0 Ne4 13.Nc3 Ne5;10...Ne5 11.Be5 Bd6 12.Bd6 Qd6 13.d4 0-0) 11.0-0 0-0 12.Bd4 Bd413.ed4 Qe7; C) 10.0-0 Bd6 11.Nd4 0-0 12.f4 Qe7 13.Nc3 Ra8.

9.Be2 Be7 A) 10.Bb2 0-0 (10...c5 11.bc6 Nc6 12.0-0 0-0 13.Nc3 Qd7; 10...c611.0-0 0-0 12.Na3 Qd6 13.bc6 Nc6; 10...Bd6 11.0-0 0-0 12.Nc3 Nbd713.Nd4 Nc5) 11.0-0 c5 12.d4 Nbd7 13.dc5 Nc5; B) 10.Nc3 0-0 (10...Nbd7 11.Nd4 0-0 12.f4 Nc5 13.0-0 Qd6;10...c5 11.bc6 Nc6 12.0-0 0-0 13.Nb5 Qd7; 10...Bd6 11.0-0 0-012.Nd4 c5 13.bc6 Nc6; 10...c6 11.bc6 Nc6 12.0-0 0-0 13.Nb5 Qd7)11.0-0 Nbd7 12.Nd4 Nc5 13.f4 Qd6; C) 10.Bf6 Bf6 11.d4 0-0 12.0-0 c5 13.bc6 Nc6; D) 10.Ne5 0-0 (10...Nbd7 11.0-0 Ne5 12.Be5 0-0 13.d4 Qd7;10...Bd6 11.0-0 0-0 12.f4 c5 13.bc6 Nc6) 11.Bb2 c5 12.0-0 Nbd713.d3 Qc7; E) 10.0-0 0-0 (10...c5 11.bc6 Nc6 12.Nc3 0-0 13.Nb5 Qd7) 11.Bf6Bf6 12.d4 c5 13.bc6 Nc6.

9.Be5 Nbd7 A) 10.d4 Ne4 (10...Ne5 11.Ne5 Nd7 12.Nd7 Qd7 13.Bd3 Bb4) 11.Bf4 g5 12.Be5 f6 13.Bg3 h5; B) 10.Bb2 Bd6 11.Be2 0-0 12.0-0 Qe7 13.Nd4 Ra8; C) 10.Bf4 Be7 11.Be2 Ne4 12.0-0 0-0 13.d3 Nef6.

9.c4 Bb7 10.Be2 Bd6 (10...dc4 11.Na3=) 11.0-0 0-0 12.d4 Nbd7 13.Nbd2 (13.cd5 Bd5 14.Nc3 Bb7=) 13...Ne4 (13...cd4 14.Nd4 Qc7 15.f4+=) 14.Ne4= de4 15.Nd2 (15.Ne5 Ne5 16.de5 Bb8=) 15...Nf6 (15...Qc7 16.Qc2+=) 16.Qc2 (16.dc5 Bc5 17.Qc2 Bd6=) 16...Qe7 (16...cd4 17.Bd4 e5 18.Bb2=) 17.dc5+= Bc5 (17...bc5 18.Rb1+=) 18.Bf6 Qf6 19.Ne4 Be4 (19...Qg6 20.Bf3+=) 20.Qe4+/– Rd8 21.Rd1 g6 22.g3 Kg7 (22...Rd1 23.Bd1 Qa1 24.Qd3+/–) 23.Rd8 Qd8 24.Qd3 (24.Bf3!?+/–) 24...Qd3+= 25.Bd3 f5 26.e4 (26.Bf1 e5+=) 26...Kf6 27.Kg2 h6 28.h4 g5 29.f4+/– fe4 30.Be4 e5 31.hg5 hg5+= 32.fg5 Kg5 33.Kf3 Bd4 34.g4 Bc5 35.Bf5 Kf6+= 36.Ke4 Bd4 37.Kd5 Bc5 38.Bc8 Be3 39.Bd7 Bf4? 40.Bc8?? Be3+/– 41.Ke4 Bd4+= 42.Bf5 Kg5 43.c5 Bc5 ½–½. Schwichtenberg,Juergen – Luebbers,Doris, Hessen–ch Seniors, 2004.

9.c4 dc4 10.Bc4 Bb7 11.0-0 Be7 12.Nc3 Bf3 (12...0-0 13.Qe2=) 13.Qf3+= 0-0 (13...Qd2?? 14.Rd1 Qc2 15.Bd3+-) 14.Rd1 Qc7 15.Ne4 Nbd7 16.Bd3 Nd5 17.Qh3 f5 18.Bc4 N7f6?? (18...Rf7 19.Nc3 N7f6 20.Qf3+=) 19.Nf6?? (better is 19.Ng5 Re8 20.Bf6 Bf6 21.Qh7 Kf8 22.Ne6 Re6 23.Bd5+-) 19...Bf6+/– 20.Bf6 Rf6 21.Qf3 Ne7 22.Ra1 g6 (22...Rh6 23.Qa8 Kf7 24.h3+/–) 23.Qa8 Kg7?? (better is 23...Rf8 24.Be6 Kg7+/–) 24.Ra7+- Qd6 25.Qe8 Rf7 26.Rd7 Qe5 27.Re7 Qf6 (27...Re7 28.Qe7 Kh6 29.f4+-) 28.Rf7 Qf7 29.Qe6 (29.Qb8 Qe7+-) 29...Qe6 30.Be6 Kf6 31.Bc4 Ke5 32.f3 (32.f4 Kf6+-) 32...h6 (32...g5 33.g3 g4 34.f4 Kf6 35.d4 cd4 36.ed4+-) 33.Kf2 g5 34.g3 f4 35.g4 Kf6 36.Ke2 Kg6 (36...Ke5 37.Kd3 Kf6 38.Ke4+-) 37.d4 (better is 37.ef4 gf4 38.Kd3+-) 37...fe3 (37...cd4 38.ed4 Kg7+-) 38.dc5 bc5 39.b6 1–0. forsetinn (1630) – kenny529, gameknot.com, 2013.

9.bc6 Nc6 10.Ne5 Ne5 11.Be5 Be7 =.

8.Nc3 c4 9.d4? (better is 9.Nf3=) 9...Bb4-+ 10.g3? (10.Nge2 Qa5 11.f3 Qb5-+) 10...Bd7 (better is 10...Qa5-+) 11.Qb1 Qa5 12.Qb2 Ne4 13.Qc1?? (better is 13.Nge2-+) 13...Bb5 14.Nge2 Nc6 (14...Nc3 15.Bc3 Bc3 16.Nc3 Qc3 17.Qd2 Qa1 18.Qd1-+) 15.Bg2 (15.Qb2-+) 15...Bc3 16.Nc3 Nc3 17.0-0 (17.Bc3 Qc3 18.Qd2 Qa1 19.Qd1 Qa5 20.Ke2 c3 21.Kf3-+) 17...Ne2 18.Kh1 Nc1 19.Rc1 Qd2 (19...Qd2 20.Bb2 Nb4-+) 0–1. swindon – beatroot, gameknot.com, 2008.

8.Nc3 e5 +=.

8.c4 Qb6 9.Nf3 (9.Bf6 gf6 10.Qf3 Qd8+=) 9...Nbd7 10.Qc2 Be7 11.Bd3 Qa5 12.Bc3 Qa8 13.0-0 b6 14.Bb2 (14.cd5 ed5 15.Bf5 0-0=) 14...Bd6 15.Nc3 d4? (better 15...dc4!? 16.Bc4 Bb7=) 16.Ne4+- Be5 (16...Ne4 17.Be4 Bb7 18.Ra1+-) 17.Nf6 (17.ed4!? Bf4 18.dc5 bc5 19.Nf6 Nf6 20.Ra1+-) 17...Bf6+- 18.Ra1 Qb8 19.ed4 cd4 (19...Bb7 20.Be4+-) 20.Nd4+- Qe5 (20...Qd6 21.Ra8 0-0 22.Bh7 Kh8 23.Ba3+-) 21.Bc3 (21.Ra8 Qc7+-) 21...0-0 (better 21...Bb7!?+-) 22.Bh7 Kh8 23.Nc6 Qh5 (23...Qf4 24.Bd3+-) 24.Be4 Bh4 (24...Bc3 25.Qc3 (25.dc3?! Nc5+-) 25...Bb7 26.d4+-) 25.Bf3 Qc5 26.Bd4 Qg5 (26...Qd6 27.Qc3 Bf6 28.Bf6 Nf6 29.d4+-) 27.g3 e5 28.Bc3 Qf6 29.Bg4 (29.gh4?! Qf3 30.Qd1 Qd1 31.Rd1 f6+-) 29...Bg5 30.Ra7 Nc5 (30...Nb8 31.Be5 Qh6 32.Bc8 Nc6 33.bc6+-) 31.Bc8 Rc8 (31...Bd2 32.Be5 Qh6 33.Bf5+-) 32.Ne5 Qe6 (32...Rf8 33.Nf7! Qf7 34.Rf7 Rf7+-) 33.Nf7 Kg8 34.Ng5 Qe1 35.Kg2 Rf8 36.Qh7 1–0. onur604 (1960) – ghjyz (1700), lichess.org, 2020.

8.c4 g6 9.Nf3 Bg7 10.d4 dc4 (10...Ne4 11.Nbd2 Qa5 12.Bd3=) 11.Bc4+= cd4 (11...Nbd7 12.dc5 Nc5 13.Qd8 Kd8 14.Ke2+=) 12.Bd4 0-0 13.Nbd2 Nbd7 14.0-0 Qc7 (14...b6 15.Qe2+=) 15.Qa1+- b6 16.Rc1 Nc5?? (better 16...Qd8+-) 17.Bf6+- (17.Bf6 Bf6 18.Qf6+-) 1–0. onur604 (2320) – SUPERGMDONKEY (1960), lichess.org, 2020.

8.bc6 Nc6 9.f4 (9.Nf3 Bd6=) 9...Bc5=+ 10.Nf3 d4 (10...0-0 11.Be2=+) 11.Nd4 (11.ed4 Bd4 12.Nd4 Nd4=) 11...Nd4 12.ed4 Bd4 13.Bb5 Bd7 14.Bd4 Bb5 (15.Be5 Qd5=+). Dzuris,Ivan – Zerbe,Klaus, corr, 1970.

8.d4 c4.

8.d4 Bd7 9.c4 cd4 10.Bd4 Bb4 11.Bc3 Bc3 12.Nc3 dc4 13.Bc4 0-0 14.Nf3 (14.Nge2 Qc7 15.Bd3 Rd8=) 14...Qc7 (14...Qa5!? 15.Qd3 Rd8-/+) 15.Qb3 Rd8 16.0-0?? (16.b6 Qc5 17.0-0 Bc6=) 16...Ng4?? (16...Rc8 17.Nd2 Ng4 18.Rd1-+) 17.g3?? (17.Bd3 Ne5 18.Ne5 Qe5+=) 17...Bc8?? (better 17...Rc8 18.Nd2 Ne5-+) 18.Nd4 b6 19.Ra1 Bb7? (19...Nf6 20.Ra8=) 20.Ra7?? (20.Ne6 fe6 21.Be6 Kh8 22.Bg4 Nd7+-) 20...Nd7? (20...Ne5 21.Be2=) 21.Nc6 (better 21.Ne6!? fe6 22.Be6 Kh8 23.Bg4+-) 21...Nc5+= 22.Qc2 (22.Qa3 Re8+=) 22...Ra8= 23.Ra8 Ba8 24.Qe4?? (24.Qd1 Nf6=) 24...Nf6 (better 24...Ne4 25.Ne4 Bc6 26.bc6 Qc6-+) 25.Qe5+= Qd7 (25...Qe5 26.Ne5 Kf8 27.Nc6+=) 26.Nd4 (better 26.Qb8 Qe8 27.Qb6+-) 26...Qb7 27.Nc6 h6 (27...Qd7 28.Qb8 Qe8 29.Qb6+-) 28.Be2 Qd7 (better 28...Kh7!?+=) 29.Qb8+- Qe8 30.Qe8 Ne8 31.Bf3 (better 31.Ne7!? Kf8 32.Nc8+/-) 31...Nc7+= 32.Ne4 (better 32.Kf1+=) 32...Nb5 33.Nc5 bc5 34.Ne7 Kf8 35.Ng6 fg6 36.Ba8 Ke7 37.Be4 Kd6 (37...g5!?-/+) 38.Bg6=+ Ke5 39.Kf1 c4 40.Ke2 Kd5 41.Kd2 c3 (better 41...Nd6!?=) 42.Kc2+/- Kc4? (better 42...Nd6 43.Kc3 Ne4 44.Be4 Ke4+=) 43.Bd3+- Kc5 44.Bb5 Kb5 45.Kc3 Kc5 46.e4 e5 (46...Kd6 47.Kd4+-) 47.f4 ef4 48.gf4 h5 (48...g6 49.h4+-) 49.Kd3 h4 50.h3 g6 51.Ke3 Kd6 52.Kf3 Ke6 53.Kg4 Kf6 54.Kh4 (54.Kh4 Kf7 55.Kg5+-) 1-0. bambambambambambam (1695) - trenak (1770), lichess.org, 2017.

8.Be2 Be7 9.f4 0-0 10.Nf3 Nbd7 11.0-0 b6 12.Qe1 Bb7 13.Bb2 Qc7 14.Ne5 c4 15.d3 cd3 16.cd3 Nc5 17.Qg3 Na4 18.Rc1 Qb8? (better is 18...Qd6 19.Bd4 Nc5+=) 19.Nd7!+- Qd8 (19...Nd7 20.Qg7) 20.Bf6 (20.Nf8?! Nb2 21.Nh7 Nh7=) 20...Bf6 21.Nf8 Kf8 22.d4 Nb2 23.Nd2 Nc4 24.Nc4 dc4 25.Bc4 Bd5 (25...Qe7+-) 26.Bd5 Qd5 27.Rc8 Ke7 28.Qf3 Qb5 (28...Kd7 29.Rf8 Qf3 30.gf3 Ke7+-) 29.Qb7 Kd6 30.Qb8 Kd5 31.Rc5!! (31...Qc5 32.dc5 bc5 33.Qb7 Kc4 34.Qf7+-) 1–0. miehnekort – ar_shtein, Yahoo, 2005.

8.Nf3 b6 9.c4 Bb7 10.g3 Nbd7 11.d3 Qa8 (11...Bd6 12.Bg2=+) 12.Nbd2= Be7 13.Bg2 0-0 14.0-0 dc4 15.Nc4 Nd5 16.Nfe5 Ne5 17.Be5 Qd8 18.Qb3 f6 19.Bb2 Qc7 20.Bh3 f5 (20...Bc8 21.e4 Nb4 22.d4+=) 21.e4+/- 1-0. Oldenev – Gerry, internet, 2021.

9.Bc3 Qa2 10.Bf6 gf6 11.Nc3 Qa5 12.cd5 Bg7 13.Bc4 ed5 14.Bd5+- 0-0 15.Nge2 Nd7 16.0-0 Nb6 17.Qb3 Nd5 18.Qd5 b6 (18...Qc7 19.d4 cd4 20.Qd4+-) 19.Nf4 Qb4 (19...Kh8 20.Qc6+-) 20.Qc6 (20.Qc6 Kh8 21.Qb6+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Bc3 Qa2 10.Bf6 gf6 11.Nc3 Qa3 12.cd5 Bg7 13.Bc4 f5 14.Nge2 ed5 (14...Qb4!? 15.Qa4 Nd7 16.de6 Nb6 17.Qb4 cb4 18.ef7 Kf8+=) 15.Nd5+- 0-0 16.0-0 Be6 (16...Bd7 17.Ng3+-) 17.Nef4 Nd7 (17...Kh8 18.Qh5 Qa4 19.d3 Bd5 20.Nd5+-) 18.Ne6 (18.Ne7 Kh8 19.Be6 fe6 20.Ne6 Rf7 21.Ng7 Kg7 22.Nf5 Kh8+-) 18...fe6 19.Nf4 (19.Nf4 Ne5 20.Be6 Nf7 21.Qh5+-) 1–0. guest228 – guest57, chessclub.com, 2018.

9.Bc3 Qa2 10.Bf6 gf6 11.Nc3 Qa5 12.cd5 e5 13.Bd3 Nd7 (13...Rg8 14.g3 h6 15.Nf3+-) 14.Nf3 Nb6 15.0-0 (15.Qb1 Qb4+-) 15...c4 16.Be4 Bb4 (16...f5 17.Bb1 Bg7 18.Ng5+=) 17.Qc2 Bc3 (17...Bg4 18.Rb1+-) 18.dc3 (18.Qc3?! Qc3 19.dc3 f5+=) 18...Qb5 19.d6 Nd7 (19...Qd7!? 20.Rd1 Qa4+-) 20.Bh7 Nc5 21.Ra1 Nd3 (21...Qc6 22.Bf5+-) 22.Be4 f5 (22...Kd7 23.Rb1 Qc5 24.Qa2+-) 23.Bf5! Bf5 24.Ra8 Kd7 25.Rh8 Bg6 (25...Kd6 26.Nd2+-) 26.Qa2 (better 26.Nd2 Qa6 27.Qd1 Kd6 28.Rb8+-) 26...Nb2?? (26...Qb3 27.Qb3 cb3+-) 27.Qa8 Qd5 (27...Qb6 28.Qc8 Kd6 29.Rd8 Qd8 30.Qd8 Kc5 31.Ne5 Bh5+-) 28.Qc8 (28.Qc8 Kd6 29.Rd8 Ke7 30.Rd5 Nd3 31.Qd8 Ke6 32.g4 Nf2 33.Re5) 1–0. DEFFM – GuestMBGP, freechess.org, 2019.

9.Bc3 Qa8 10.Bf6+= gf6 11.cd5 ed5 12.Nc3 Be6 13.Nge2 (13.Be2 d4 14.Ne4 Nd7+=) 13...Nd7 14.Nf4 (14.g3 Ne5 15.Nf4 Qd8+=) 14...b6 (14...d4 15.Ncd5 Qa2 16.e4=) 15.Be2 (15.Qh5 Qa1 16.Nd1 Qe5+=) 15...Bh6 (15...d4 16.Bf3 Qa5 17.Ncd5+=) 16.0-0 (16.Bf3!? Bf4 17.ef4+=) 16...Bf4= 17.ef4 d4 18.Bf3 Qa5 19.Nd5 Qb5?? (better 19...Kd8 20.Qc2 Re8+=) 20.Nc7+- (20.Nc7 Kd8 21.Nb5+-) 1–0. GuestKMYB – GuestWCJD, freechess.org, 2018.

9.Bc3 Qb6 10.Nf3 Ne4 11.Bb2 Nd7 12.d3 Nd6 13.Be2 f6 (13...Be7 14.0-0 0-0 15.Nc3+=) 14.Qc2 Be7 15.cd5 ed5 16.Nc3 d4 17.ed4 cd4 (17...Nb5!? 18.Nd5 Qa5 19.Kd1 b6+=) 18.Nd5+- Qa5 19.Nd2 (19.Kf1 Kf7 20.Ne7 Ke7 21.Nd4 Re8+-) 19...Nb5?? (better 19...Kf7+=) 20.Qc8+- (20.Qc8 Bd8 21.Qb7+-) 1–0. GuestWRSB – GuestDVXM, freechess.org, 2018.

9.Bc3 Qc7 10.Bb2 b6 (10...Nbd7 11.Nf3=+) 11.Nf3 (11.Bf6 gf6 12.cd5 ed5+=) 11...Bb7 (11...Nbd7 12.Nc3=+) 12.Be5 Bd6 13.Bf6 gf6 14.g3 e5?? (14...dc4!? 15.Bc4 h5=+) 15.Bh3 (15.Nc3!? d4 16.Nd5 Bd5 17.cd5 de3 18.de3+/- (18.fe3?! e4 19.Nh4 Bg3 20.hg3 Qg3 21.Ke2 Qg4 22.Ke1 Qg3 23.Ke2 Qg4 24.Ke1 Qg3 25.Ke2=)) 15...d4 16.Bg2 (16.d3 Nd7+=) 16...e4 17.Nh4 d3?? (better 17...Nd7=) 18.Nc3+- Nd7 19.Be4 Ne5 20.Bb7 Qb7 21.0-0 Nc4 22.Nf5?? (better 22.Qg4!? Nd2 23.Rd1 Be5 24.Rd2 Bc3 25.Rd3 Ba1+-) 22...Be7 (22...Be5!? 23.e4 Bc3+/-) 23.e4+- Ne5?? (better 23...Nd6+-) 24.Nd5 Ng6 (24...Bf8 25.Nf6 Kd8 26.Qa1+-) 25.Nde7 Kd7 26.Ng6 (better 26.Nd5 Ra8 27.Qb3 Rd8+-) 26...hg6 (26...fg6 27.Qg4 Ke6 28.Ne3 Kf7 29.Nd5+-) 27.Qb3 gf5 28.Qf7 Kc8 29.Qe6 Qd7 30.Qf6 (30.Qb6 Qh7 31.h4 Qb7 32.Qc5 Qc7 33.Qf5 Kb8 34.Qf6 Rc8+-) 30...Rf8 (30...Re8 31.Qb6 Qc7+-) 31.Qf8 (31.Qf8 Qd8 32.Qh6 Qc7 33.Ra1 Kb7 34.Qf8 Qb8 35.Qf7 Qc7 36.Qd5 Kc8 37.Ra8 Qb8 38.Qc6 Kd8 39.Rb8 Ke7 40.e5 Kf7 41.Qf6) 1-0. Atotheking (1735) - philippe250 (1880), lichess.org, 2021.

9.Bc3 Qd8 10.Nf3 b6 11.Qc2 Ne4 12.Bb2 f6 (12...Nd7!?+=) 13.Bd3 Nd6 (13...f5!?+-) 14.cd5+- ed5 15.Nc3 f5? (better 15...Nc4 16.Bc4 dc4 17.Qe4 Be7 18.Qc4 Qd6+-) 16.Nd5 1–0. DEFFM – GuestYNTK, freechess.org, 2019.

9.Nc3 d4 10.ed4 cd4 11.Nce2 Bc5 12.Ng3 (better 12.Bd4!? Bd4 13.Nd4+=) 12...e5=+ 13.Bd3 0-0 14.N1e2 (better 14.Qb1=+) 14...e4 (better 14...Re8 15.0-0 e4-/+) 15.Ne4+= Ne4 16.Be4 d3 (16...Re8!? 17.Bd3 Bg4+=) 17.Bd3 Rd8 18.Bc2 (18.Nf4 Bg4 19.f3 Re8 20.Kf1 Bd6+/-) 18...Bg4 19.Bc3 Qb6 20.0-0 (20.d4 Be2 21.Qe2 (21.Ke2?! Bd4 22.Qd3 Re8 23.Kf1 Bc3 24.Qc3 Qe6=) 21...Bd4 22.Bd4 Qd4 23.0-0+-) 20...Nd7?? (better 20...Re8 21.d4 Be2 22.dc5 Bd1 23.Bh7 Kh7 24.cb6 Be2-/+) 21.d4+- Bf8 22.Qd3 Nf6 23.c5 Qe6 (23...Qc7 24.Qg3 Qd7 25.Nf4+-) 24.f3 (24.Nf4 Qe8 25.Re1 Qd7+-) 24...Bh5?? (24...Bf5 25.Nf4 Bd3 26.Ne6 fe6 27.Bd3 Bc5 28.Bh7 Nh7 29.dc5 Rd5+-) 25.Nf4 Qd7 (25...Bg6 26.Ne6 Bd3 27.Nd8 Bc2+-) 26.Nh5 Bc5 27.Nf6 gf6 28.Qh7 Kf8 29.dc5 (29.dc5 Qf5 30.Bf5 Rd4 31.Qh8 Ke7 32.Re1 Re4 33.Re4) 1-0. BeepBeepImAJeep (2750) - Hausigel (2725), lichess.org, 2020.

9.Nc3 d4 10.ed4 cd4 11.Nce2 e5 12.Ng3 Nbd7 13.Nf3 Bb4 14.Be2 0-0 15.0-0 Re8 16.d3 Qb6 17.Bb2 Bd6 18.Ng5 Nc5 19.Bf3 Bf5?? (19...Qc7 20.Qe2=) 20.N5e4 (better 20.Nf5 h6 21.Ne4 Nce4 22.Be4 Ne4 23.de4+-) 20...Be4=+ 21.Be4 Nfe4 22.de4 g6 23.Bc1 (23.Qd2 h5=+) 23...Qa5-/+ 24.f4 (24.Qe2 d3 25.Qb2 Qa4-/+) 24...Qa4 25.fe5 Qd1 26.Rd1 Be5 27.Bb2 Rd8 Black intends d3 28.Ba3 (28.Kf2 h5-/+) 28...Ne6 29.Ne2 d3 30.Nc1 d2 31.Nb3? (better 31.Ne2-/+) 31...Rd3-+ 32.Nd2 Ra3 33.Nf3 Bf4 34.Kf2 Be3 35.Kg3 (35.Kf1 Rc3 36.e5 Rc4-+) 35...b6 36.Re1 Bc5 37.e5 Kg7 38.Re4 Ng5 39.Rf4 (39.Rg4 Nf3 40.gf3 Re3-+) 39...Nf3 (39...Re3!? 40.Rh4-+) 40.gf3 (40.Rf3 Ra2-+) 40...Re3 41.Rf6 (41.Re4 Re4 42.fe4-+) 41...Re5 42.Rc6 Re6 (42...Re2 43.Kh3-+) 43.Kf4 (43.Re6 fe6 44.h3 Kf6-+) 43...Kf6 (better 43...Bd6 44.Kg4 Bh2 45.Re6 fe6-+) 44.Rc8 (44.h4 Be3 45.Kg4 Rc6 46.bc6 h5 47.Kg3 Ke6-+) 44...h5 (44...Bd6 45.Kg4 h5 46.Kh3 Re2 47.f4 Bf4 48.Rc6 Ke5 49.Re6 Ke6 50.c5 Rh2) 45.Kg3-+ Bd6 46.Kg2 Kf5 47.f4 (47.Rc6 Bc5 48.Rc7 f6-+) 47...f6 (47...Re2 48.Kf3 Rh2 49.Rd8 Bf4 50.Rd7-+) 48.Kf1 Bf4 (48...Re4 49.Rd8 Rf4 50.Ke2 Re4 51.Kd3 Bh2 52.Rf8-+) 49.Rd8 (49.h3 Re4-+) 49...Be3 (49...Bh2 50.Rd2 Bg3 51.Kg2-+) 50.Rd5 (50.Kg2 Bc5 51.Rd2 Re1-+) 50...Re5 (50...Kg4 51.Rd3-+) 51.Rd3 Bc5 52.Kg2 (52.Rf3 Ke6-+) 52...Kg5 (52...Re2!? 53.Kh1-+) 53.Rf3 (53.Rg3 Kh6-+) 53...Rf5 (53...Re2!? 54.Kh1-+) 54.Rg3 Kh6 55.h4 (55.Rf3 Rf3 56.Kf3 f5-+) 55...g5 (55...Rf4 56.Kh3-+) 56.Rh3 (56.hg5 fg5 57.Rc3 g4-+) 56...g4 57.Rg3 (57.Rc3 Rf2 58.Kh1 f5-+) 57...Kg6 58.Kh2 (58.Rb3 Rf2 59.Kh1 f5-+) 58...Rf2 (58...Bd6!? 59.Kg2 Bg3 60.Kg3 Rf3 61.Kg2-+) 59.Rg2 f5 60.Rf2 Bf2 61.Kg2 Bh4 62.c5 Bf6 63.c6 Be5 64.c7 Bc7 65.Kf2 Kf6 66.Ke2 Ke6 (66...h4 67.Kf2 g3 68.Kg2 f4 69.Kh3 f3 70.Kg4 f2 71.Kf3 f1Q 72.Ke4 g2 73.Kd5 Qf3 74.Kc4 g1Q 75.Kb4 Qd4) 67.Kd3 Kd5 68.Kc3 Kc5 (68...g3 69.Kc2 g2 70.Kd1 g1Q 71.Ke2 Kc4 72.Kd2 Bf4 73.Ke2 h4 74.Kf3 Qf1) 69.Kd3-+ Kb5 70.Kd2 Plans g3 70...Kc5 71.Ke2 b5 72.Kf1 b4 73.Ke2 Bd6 74.Kd3 ½-½. BeepBeepImAJeep (2595) - Gilevich (2335), lichess.org, 2016.

9.Nc3 Bd6 10.Nf3 d4 11.ed4+= cd4 12.Nd4 (12.Na4 Nbd7 13.Nd4+=) 12...Be5? (better 12...0-0!?+=) 13.Nb3+- Qb4 14.d4 Ne4? (better 14...Bc7!?+-) 15.Qc2+- Nc3?? (15...Bd6+-) 16.Bc3 (16.de5?! Nb5 17.Nd2 Na3+-; 16.Qc3?! Bd6+-) 16...Qd6 (16...Qe7 17.de5 Nd7 18.Bd3+-) 17.de5 Qd8 (17...Qc7 18.f4 Nd7 19.Be2+-) 18.Be2 0-0 19.0-0 Nd7 20.Rd1 Qg5 21.Qe4 Rd8 (21...b6 22.Rd6+-) 22.c5 f5 (22...Nf8 23.Rd6+-) 23.ef6 gf6 (23...Re8 24.c6 bc6 25.Qc6 gf6 26.Rd7 Bd7 27.Qd7 Qg6+-) 24.Qe6 Kh8 25.Rd7! Bd7 (25...Bd7 26.Qf6 Double attack (26.Qf6 Decoy); 25...Rd7 26.Bf6 Double attack (26.Qf6 Decoy)) 26.Bf6 (26.Bf6 Qg7 27.Qf7 Rg8 28.Bc4 Be6 29.Be6 Qf6 30.Qg8) 1–0. GuestVSWY – GuestCDPS, freechess.org, 2019.

9.Nc3 Bd7 10.Nf3 Be7 11.Be2 0-0 12.0-0 Ne4 13.Ne4 (better 13.cd5!? Nc3 14.Bc3+-) 13...de4+= 14.Ne5 f6 15.Nd7 Nd7 16.Qc2 (16.d3 Rd8 17.Qc2 Nb6+=) 16...f5 17.Bc3 Qc7 18.f3 ef3 19.Bf3 Ne5 (better 19...Bf6!?=) 20.Be5+- (20.Be5 Qe5 21.Bb7+-) 1–0. GuestKVYG – GuestPBMM, freechess.org, 2017.

9.Nc3 Ne4 10.Ne4 de4 11.f3 Nd7 (11...ef3!? 12.Nf3 f6+=) 12.fe4+/– Bd6 (12...e5!?+/–) 13.Bg7+- Rg8 14.Bc3 Qc7 15.Qh5 Bg3?? (15...Nf8+-) 16.hg3 Kf8 (16...Qg3 17.Kd1+-) 17.Ne2 Nb6 (17...e5 18.Qh6 Ke7 19.Rh5+-) 18.Qh7 e5 19.Nf4 Bg4 (19...Qd8 20.Rh5 Nd7 21.Qh6 Ke8 22.Nd5+-) 20.Be2 Be2 (20...Bc8+-) 21.Ne6! Ke7 (21...fe6 22.Qh6 Double attack (22.Qc7 Pinning; 22.Qc7 Deflection; 22.Qh6 Decoy; 22.Ke2 Zwischenzug)) 22.Nc7 Bc4 23.Qg8 1–0. marekt – 488, ChessWorld.net, 2012.

9.Qa4 Bd6 10.Nf3 Nbd7 11.Be2 0-0 12.0-0 Qc7 13.Qc2 Bb7 14.d4 dc4 15.Nbd2 (15.dc5 Qc5 16.Qc4 Qh5+=) 15...c3 (15...cd4!? 16.Qc4 de3 17.fe3 Bd5 18.Qc7 Bc7-/+) 16.Qc3+= Ne4?? (better is 16...Rc8+=) 17.Ne4+- Be4 18.dc5 Bh2 19.Nh2 e5 (19...f6 20.cb6 Qb6+-) 20.c6 Nc5 21.Qe5 Qe5 22.Be5 Nd3 (22...Ra8 23.Bc7 Na4 24.Ra1+-) 23.Bc7 Nb4 24.Bd6 1–0. Chulia Sanmartin,Miguel (1865) – Rovira Agusti,Guillem (1760), Valencia Provincial South, 2004.

9.Nf3 dc4 10.Bc4 Bb7 11.Be5 Bd6 12.Bd6 Qd6 13.0-0 Ng4 14.g3 Nd7 15.h3 (better is 15.d4!?+=) 15...Ne3!-/+ 16.de3 (16.de3 Qd1 Combination; 16.fe3 Qg3 Double attack) 16...Qd1 17.Rd1 Bf3 18.Rd6 (18.Rc1!?-/+) 18...Ke7-+ 19.Rd2 Ne5 20.Be2 Be2 21.Re2 Ra8 22.Nc3 Ra3 23.Ne4 f5 24.Ng5 (24.Nd2 Ra5-+) 24...h6 25.f4 Nc4 26.Nf3 Ne3 27.Kf2 Nd1 28.Kg2 1–0. tightfist (2500) – splinterjuice (2605), net–chess.com, 2013.

9.Nf3 Bd6 10.Be2 Bb7 11.d4 0-0 12.Nbd2 Nbd7 13.0-0 Qc7 14.dc5 Nc5 15.Bf6 gf6 16.cd5 Bd5 17.Qa1 e5 18.Nc4 Ra8 (18...Be7 19.Rd1 Ra8 20.Qb2=) 19.Qd1= Bc4 20.Bc4 e4 21.Nd2 (21.Nd4!? Bh2 22.Kh1=) 21...Bh2= 22.Kh1 Be5 23.Qg4 Kh8 24.Ne4 Rg8 25.Qf3 Qe7 (25...Rg6 26.Rd1 Na4 27.Bd5=) 26.Nc5+- bc5? (better 26...Qc5!? 27.Bf7 Rd8+-) 27.b6+- Rb8 28.Rb1 White prepares the advance b7 28...Qf8 (28...Qa7 29.Qd1 (29.ba7?? Rb1 30.Qd1 Rd1 31.Bf1 Rf1) 29...Qe7 30.Qh5+-) 29.g3 Qh6 30.Kg2 Qg6 31.Rb5 h5 32.b7 h4 33.Rc5 (33.Rc5 hg3 A) 34.fg3?! Qc2 35.Qf2 Qe4 36.Qf3 Qc2 37.Kg1 Qc1 38.Kh2 Qc2 39.Qe2 Qh7 40.Kg2 Qe4 (40...Rb7?? 41.Rc8 Kg7 42.Qg4 Qg6 43.Rg8 Kg8 44.Qg6 Kf8 45.Qh6 Ke7 46.Qg7+-) 41.Kg1 Qb7= (41...Rb7? 42.Bd3 Rb1 43.Bb1 Qb1 44.Kg2+-); B) 34.Rc8 Kg7 35.fg3 Qc2 36.Be2+-) 1–0. DEFFM – GuestLCLQ, freechess.org, 2019.

9.Nf3 Bd6 10.Be2 Nbd7 11.Nc3 Bb7 12.0-0 0-0 13.Bb2 Qc7 14.h3 Rd8 15.d3 Nf8 16.Qc2 Ng6 17.Ra1 Qe7 18.cd5 ed5 19.d4 Ne4 20.Ne4 de4 21.Nd2 Bb8 22.dc5 bc5 (worse is 22...Qc5 23.Qc5 bc5 24.Nb3+/–) 23.Nf1 Qg5 24.Rd1 Re8 25.Bg4 Nh4 26.Qc4 Qg6? (26...Bc8 27.Rd5 Qg6 28.Qc5 f5+/–) 27.Qc5+- f5 28.Rd7 Bc8? (28...fg4 29.Rb7 Nf5 30.hg4 Qg4 31.Qd5 Kh8+-) 29.Rg7 Qg7 30.Bg7 fg4 (30...Kg7 31.Qc6 Rg8 32.Be2+-) 31.Bf6 (better is 31.Qc6 Kf7 32.Bc3 Be6 33.Qb7 Re7 34.Qb8 Ng6+-) 31...Ng6 32.hg4 Bg4 33.Qc6 Kf7 34.Bd4 Re7 35.f3 ef3 36.gf3 Be6 37.b6 Bd7 38.Qf6 Ke8 39.f4 Rf7 40.Qg5 Nf8 41.Ng3 Ne6 42.Qg8 Rf8 43.Qh7 Nd4 44.ed4 Bf4 45.Qh5 Kd8 46.Qf3 Ke7 47.Qe4 Kd8 48.Ne2 Bd6 49.Nc3 Rg8= 50.Kf2 Rf8 ½–½. Khrustalev,Alexsander (2000) – Sidorov,Kirill (2025), Moscow Petrosian Memorial U18, 2008.

9.Nf3 Bd6 10.Be2 Nbd7 11.d3 0-0 12.0-0 Bb7 13.Nbd2 Qc7 14.g3 e5 (14...Ra8 15.Bf6 Nf6 16.Qc2-/+) 15.cd5 Nd5 16.e4 (16.Nc4 Ra8=+) 16...Nb4 (16...N5f6 17.Nc4=) 17.Qb3 Kh8 (17...h6 18.Bc3=) 18.Bc3 f6 (18...Qd8 19.Nc4 Qe7 20.Nh4+=) 19.Rc1+= Qb8 20.Nc4 (20.Bb4 cb4 21.d4 ed4 22.Nd4 Nc5=) 20...Rc8 (20...f5 21.Rd1+=) 21.Ne1 Bf8 (21...Rd8 22.Bg4+=) 22.Bg4 Rd8 23.Bb4 (23.Bd7 Rd7 24.Bb4 cb4 25.Nb6 Rd8+=) 23...cb4= 24.Bd7 Rd7 25.Nb6 Rc7 (25...Rd8 26.Nc4+=) 26.Nc4 (26.Rc7 Qc7 27.Qe6 Qd8+=) 26...Bc8 27.b6 Rc6?? (better 27...Rb7=) 28.Ne5!+- Re6 (28...Qe5 29.Rc6 Discovered attack; 28...fe5 29.Rc6 Discovered attack) 29.Nf7 Kg8 30.Nd8 1–0. GuestLQXW – soygardel, freechess.org, 2018.

9.Nf3 Be7 10.Be2 0-0 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Qc7 14.cd5 Nd5 15.Qb3 Bf6 16.Rc1 Qd6 17.h3 Rc8 18.Ne4 Qe7 19.Nf6 N7f6 20.dc5 Rc5 21.Rd1 Qc7 (21...Ne4 22.Bc4=) 22.Be5+= Qc8 23.Qb2?? (better 23.Qd3 Nd7 24.Bd6+=) 23...Rc2-/+ 24.Qb1? (better 24.Qa1 Re2 25.Nd4=+) 24...Re2-+ 25.Rc1 Qe8?? (better 25...Qa8-+) 26.Nd4 Rd2 27.Nf3 (27.Nb3 Nd7 28.Bg3 Re2=) 27...Re2 (27...Nf4 28.Nd2 Ne2 29.Kh2 Nc1 30.Qc1 Qb5 31.Qc7-/+) 28.Kf1 (28.Nd4 Nd7 29.Bg3 Rd2=) 28...Re3 29.fe3 Ne3 30.Kf2 Nfd5 31.Qd3 (31.Qa1!? f6 32.Qa7=) 31...f6=+ 32.Bd4? (better 32.Bh2 Nf5 33.Kg1=+) 32...h5?? (better 32...Ng2 33.Qf1 Ngf4-+) 33.Be3+- Ne3 34.Qe3 Qb5 35.Qe6 Kh7 36.Qc4 Qb2 (36...Qf5+-) 37.Qc2 Qc2 38.Rc2 b5 39.Rb2 Bc6 40.Nd4 Be8 41.Nb5 1-0. BeepBeepImAJeep (2710) - MatteurFOU (2390), lichess.org, 2017.

9.Nf3 g6 10.d4 cd4 11.Qd4 (worse 11.ed4 Bb7=) 11...Bg7 12.cd5 Qd5 (12...ed5 13.Be2+=) 13.Qb6+/- Nbd7 (13...Qa2 14.Bd3 (14.Qb8 Qb1 15.Ke2 0-0 16.Bf6 Bd7 17.Qf8 Bf8-+) 14...Qa1 15.Qb8 Qa5 16.Nbd2+/-) 14.Qc6 0-0 (14...Bb7 15.Qd5 Bd5 16.Nd4+/-) 15.Bc4 Qc5 16.Bd4 (16.Qc5 Nc5 17.Ke2 Bb7+-) 16...Qb4 (16...Qe7 17.0-0+/-) 17.Nbd2+- Ne4?? (better 17...h6+-) 18.Qe4 Bd4 (18...e5 19.Be5 (19.Ne5?! Be5 20.Be5 Ne5 21.Qe5 Rd8+-) 19...Ne5 20.Ne5+-) 19.Qd4 (worse 19.ed4 Nb6 20.Bd3 Bd7+-) 19...e5 (19...Qe7+-) 20.Bf7! (20.Bf7 Rf7 21.Qb4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

10.d3 Bd6 =+.

10.d4 Bd6 =.

10.Be2 dc4 11.Bc4 Be7 12.d4 =.

10.Be2 Bd6 11.0-0 =.

10.Be2 Be7 11.0-0 0-0 12.d4 (12.d3 Bd6=) 12...Nbd7 (12...dc4 13.Bc4 Bd5 14.Nbd2=) 13.Nbd2 Qc7 14.Qb3 (14.Bd3 dc4 15.Nc4 Bd5=) 14...Ra8 15.Bb2 h6 (15...cd4 16.Bd4 e5 17.Bb2=+) 16.Ra1 (16.Rc1 dc4 17.Qc4 Bd5=) 16...Qc8 (16...Ra1 17.Ba1 cd4 18.Bd4=) 17.Ra4 (17.Ra8 Qa8 18.Ba3 dc4 19.Nc4 Bd5=) 17...Ra4 (17...dc4 18.Qc4 (< 18.Rc4 Bd5-/+) 18...Bd5 19.Ra8 Qa8 20.Qc2=) 18.Qa4 Qa8 (18...cd4 19.Bd4 Nc5 20.Qd1=) 19.Qa8+= Ba8 20.Ne5 (20.Kf1 dc4 21.dc5 c3 22.Bc3 Bc5=) 20...Ne5 21.de5 Nd7 22.f4 f6 23.Bg4 Kf7 24.cd5 Bd5 25.e4 Ba2 26.ef6 gf6 27.Bh5 Kf8 28.Be2 Kf7 29.Bc4 Bc4 30.Nc4 Bd8 31.Kf2+= Nf8 32.f5 Bc7+= 33.g4 ef5 34.ef5 Nd7 35.h3 Kg7 36.Kf3 Ne5? (better is 36...Be5=) ½–½. Melich,Jindrich (2190) – Zvara,Tomas, CZE–chT1b Czechia, 1995.

10.Be2 Be7 11.0-0 dc4 12.Bc4 0-0 13.d4=.

10.Be2 Be7 11.0-0 Nbd7 12.d4 dc4 13.Bc4 0-0 14.Nbd2 cd4 15.ed4 Nd5 16.Qb3 N7f6 17.Rc1 Qd7 (17...Qd6 18.Ne5=+) 18.Bb2 Rc8 19.h3 (19.Ne5 Qd6=) 19...h6 20.Bd3 Rc1 21.Bc1 Nf4 22.Bf1 N4d5 23.Nc4 Qc7 24.Nfe5 Bd6 (24...Ne4 25.Bd3 Nd6 26.Be3=) 25.Bb2 (25.Nd6 Qd6 26.Bh6 Ne7+/-) 25...Be5 (25...Ne4 26.Bd3 Be5 27.Ne5= (worse 27.de5 Nc5 28.Qc2 Nd3 29.Qd3 Nf4-/+)) 26.Ne5 (26.de5 Nd7+=) 26...Nd7 27.Nd3 N7f6 28.Be2 (28.Ne5 Ne4 29.Bd3 Nd6=) 28...Nd7 29.Bf3 N7f6 30.g3 (30.Ne5 Ne7=) 30...Ne7=+ 31.Kg2 (better 31.Ne5!?=+) 31...Bf3-/+ 32.Kf3 Qb7 33.Ke2 Ned5 (33...Qe4!? 34.Kf1 Qh1 35.Ke2 Qh3-+) 34.Ne5-/+ Qc7 (34...Ne4 35.Qa3-/+) 35.Qc4 Qd6 (35...Ne8 36.Qc6 Qd8 37.Ba3=+) 36.Nc6 (36.Qc8 Qf8 37.Qf8 Kf8=) 36...Ne4=+ 37.Qc1 (37.Ke1 Qd7=+) 37...Ng3 (37...Qc7 38.Qa1-/+) 38.fg3=+ Qg3 39.Qd2 (better 39.Ne5=+) 39...Qh3-+ 40.Kd1? (40.Na7 g5-+) 40...Qf1 (40...Ne3!? 41.Ke2 Nc4 42.Qc3 Qg2 43.Kd1 Nb2 44.Kc1-+) 41.Kc2 Qc4 (41...Qb5 42.Ne5-+) 42.Bc3 Nb4?? (better 42...Qa4 43.Kc1 Qb5-+) 43.Kd1?? (43.Nb4 Qb5 44.d5 ed5 45.Nd5 Qa4 46.Kc1 Qa3 47.Qb2 Qb2 48.Bb2 g5+-) 43...Qb5 (better 43...Qf1 44.Qe1 Qf3 45.Qe2 Qc3 46.Nb4 Qb4-+) 44.Ne7 (44.Nb4 Qf1 45.Kc2 Qc4+-) 44...Kf8 (better 44...Kh7 45.Bb4 Qf1 46.Kc2 Qc4 47.Kb2 h5+-) 45.d5?? (better 45.Bb4 f6 46.Ke1+-) 45...Qa4 (better 45...Qf1 46.Qe1 Qf3 47.Qe2 Qc3 48.de6 Qa1 49.Kd2 Qd4 50.Kc1 Ke7 51.ef7 Kf7 52.Qf3 Ke6 53.Qh3 Ke5 54.Qh5 g5 55.Qe8 Kf4 56.Qf7 Ke3 57.Qb3 Nd3 58.Kb1-+) 46.Ke1 (46.Ke2 Na2 (46...Ke7?! 47.Bb4 Ke8 48.Qc3-/+) 47.Bg7 Kg7-+) 46...Nc2 (46...Ke7?! 47.Bb4 Ke8 48.Qd4=+) 47.Kd1 (47.Kf1 Ke7 48.d6 Kd7 49.Bg7 Qc4 50.Kf2 Qh4 51.Kg1 Qg3 52.Kh1 Qg7 53.Qc2 Qa1 54.Kg2 Qa8 55.Kf2-+) 47...Qa1 (better 47...Nd4! 48.Ke1 Nf3 (48...Ke7?! 49.Bb4 Kd7 50.Qd4-+) 49.Ke2 Nd2 50.Kd2 Ke7 51.de6 Qf4 52.Kc2 Qe4 53.Kb3 f6 54.Bb4 Ke6-+) 48.Ke2 (better 48.Ba1 Ke7 49.Qc2 ed5 50.Qc7 Ke6 51.Qe5 Kd7 52.Qd5 Ke7 53.Bg7+-) 48...Qa2 (better 48...Qa6 49.Kf2 Ke7 50.d6 Kd7 51.Qc2 Qc4-+ (51...Kd6?! 52.Qd2 Kc6 53.Bg7=+)) 49.Bb4?? (better 49.d6!? Qa4 50.d7 Qc4 51.Kf2 Qh4 52.Kg1 Qg3 53.Kf1 Qf3 54.Kg1 Qg4 55.Kf2 Qh4 56.Kg1 Qg3 57.Kf1 Qh3 58.Kg1 Qg4 59.Kf2 Qh4=) 49...Nd4 (better 49...Qc4 50.Kf3 Nb4 51.de6 Nd3-+ (worse 51...Ke7 52.Qd7 Kf6 53.Qf7 Ke5 54.Qg7 Kd6 55.Qf8 Kc7 56.Qe7 Kb8 57.Qd8 Kb7 58.e7 Qc6 59.Ke3 Nd5 60.Qd5 Qd5 61.e8Q-+)) 50.Ke3-/+ Qd5?? (better 50...Qd2 51.Kd2 Ke8-+) 51.Ng6 (51.Nd5 Ke8 52.Qc3 f5 53.Qc8 Kf7 54.Qd7 Kg8 55.Qe8 Kh7 56.Ne7 Nc2 57.Kf2 Nb4 58.Qg8) 51...Kg8 (51...Ke8 52.Nf4 Qe5 53.Kf2-+) 52.Qd4?? (better 52.Ne7 Kf8 53.Nd5 (53.Qd4?! Qd4 54.Kd4 f6+/-) 53...Ke8 54.Nf6 Kd8 55.Qd4 Kc8 56.Qd7 Kb8 57.Bd6 Ka8 58.Qc7 gf6 59.Qb8) 52...Qd4-+ (52...fg6 53.Qb6 e5 54.Qb8 Kh7 55.Bc3 Qc5 56.Kd2 Qf2 57.Kc1 Qe3 58.Kb2=) 53.Kd4 fg6 54.Ke5 Kf7 55.Kd6 h5 56.Ke5 (56.Kc6 h4 57.Be1 g5-+) 56…g5 0-1. ClayPigeons (2205) - Tarnished_Angel (2225), Rated Bullet game, lichess.org, 2019.

11.0-0 Bd6 12.d3 Qc7 13.Nbd2 0-0 14.h3 Ra8 15.Bb2 Qb8 (15...dc4 16.Nc4 e5 17.Nh4=) 16.Qb1 (16.Qc2 e5=) 16...Ra5 17.Bc3 Ra4 18.Bd1 Ra3 (18...Ra7 19.Be2=+) 19.Qb2= Qa7 20.Bb3 dc4 (better 20...Qa8=) 21.Nc4+- (21.Bc4?! Qa8=; 21.dc4?! Qa8=) 21...Rb3 22.Qb3 Be7 (22...Bf3 23.gf3 Bb8 24.f4+-) 23.Nfd2 (23.Ra1 Qb8+-) 23...Qb8 24.Ra1 g5 (24...Nd5 25.Bb2+-) 25.Qb2 (25.Qd1 Nd5 26.Bb2 Nb4+-) 25...g4 (25...Nd5 26.Ne5 Nc3 27.Nd7+-) 26.h4 (better 26.Nb6!? gh3 27.gh3 Nb6 28.Bf6 Bd6+-) 26...Nd5 27.Be5 Ne5 28.Ne5 (28.Qe5 Qe5 29.Ne5 Bf6+-) 28...h5 29.g3 f6 (29...Nb4 30.Ra3+/-) 30.Ng6+- Bd6 31.Ne4 (31.e4 Kg7 32.ed5 Kg6 33.Nc4 Bg3 A) 34.Nb6 Be5 35.Qa3 Bd4-+ (35...Ba1?! 36.Qa1 ed5 37.Qe1=+); B) 34.de6 Bh2 35.Kf1+=) 31...Kf7+= 32.Nd6 (32.Nf4 Be5 33.d4 cd4 34.ed4 Nf4 35.gf4 Bf4+=) 32...Qd6= 33.Nf4 Nb4?? (better 33...Nf4 34.ef4 Qd5=) 34.Ra7 (34.d4 Be4+-) 34...Qb8 35.Rb7 (better 35.Ra3!?+-) 35...Qb7+/- 36.d4 cd4? (better 36...Qe7!?+/-) 37.Qb4 de3 38.Qd6?? (better 38.Qb3 ef2 39.Kf2+-) 38...ef2= 39.Kf2 Qf3 (39...Qf3 40.Ke1 Qg3 41.Kd2 Qf2 42.Kd3 Qf1 43.Kd2 Qf2 (worse 43...Qb5 44.Qe6 Kg7 45.Qe7 Kg8 46.Qf6+/-) 44.Kd3 Qf3 45.Kd2 Qf2=). ClayPigeons (2255) - atilakiller (2185), Rated Bullet game, lichess.org, 2020.

11.0-0 Bd6 12.d4 0-0 13.Nbd2 Qc7 14.Qb3 (14.Bd3 Ra8=) 14...Ne4 (14...cd4 15.Bd4 e5 16.Bc3-/+) 15.g3 (15.Rd1 cd4 16.Bd4 Ndc5=) 15...Ndf6 (15...dc4 16.Bc4 Nd2 17.Nd2=+) 16.Bd3 (16.Ne4 Ne4 17.Qb2 f6=+) 16...Nd2 (16...dc4 17.Qc4 Bd5 18.Qc2 Nd2 19.Nd2=) 17.Nd2 ½–½. Schwichtenberg,Juergen – Neudel,Bernd, GER–ch Seniors, 2001.

11.d3 Bd6 12.0-0 0-0 13.Nbd2 Qc7 14.Qc2 Ra8 15.h3 (15.cd5 Bd5 16.e4 Bb7=) 15...Ne5 (15...e5 16.e4 d4 17.Bb2=+) 16.Rc1= Ned7 (16...Nf3 17.Bf3 e5 18.cd5 Bd5 19.Bd5 Nd5 20.Qc4=) 17.Bc3 (17.Rf1 e5=+) 17...e5 18.cd5 (18.Ra1 Ra1 19.Ba1 e4=) 18...Nd5=+ 19.Nc4 Nc3 20.Qc3 Ra2 21.Bd1 Ra8 (21...h6 22.Bb3 Ra7 23.Nh4=) 22.Ra1 (22.Nfd2 Ra7=) 22...Ra1 23.Qa1 g6 (23...Bd5 24.e4 Bb7 25.Bb3=) 24.Nfd2+= h6 25.Bf3 Bf3 26.Nf3 Qc8?? (26...Qb8!?+=) 27.d4 (better is 27.Nd6!? Qb8 28.Nc4 f6+-) 27...ed4? (better is 27...Bc7 28.de5 Qb8+/–) 28.ed4?? (better is 28.Nd6 Qf8 29.Nc4 de3 30.Ne3+-) 28...Be7 (28...Bf8 29.Qa6 Qe8 30.Nb6 cd4 31.Nd7 (31.Nd4?? Qe1 32.Kh2 Bd6 33.g3 Qf2 34.Kh1 Nb6-+) 31...Qd7 32.Qc6+=) 29.Qe1 (29.d5 Qd8+=) 29...Bf6 (29...Bf8 30.Qe4=) 30.d5 Qa8 31.Qd1 (31.d6 Kg7 32.Qd1 Qe4=) 31…Qa2 (32.Qd3 Qa1 33.Qf1 Qc3=). Garcia,Mario – Tosti,Ricardo R, CAPA III Copa Arg. Gr.3, 1996.

11.cd5!? ed5 12.0-0 =.

11.Ne5 Ne5-/+ 12.Be5 Bd6 (12...dc4 13.f3=+) 13.Bd6 Qd6 14.0-0 0-0 15.Bf3 Ra8 16.Nc3 Ne4 17.g3 (17.cd5 ed5 18.Qc2 Ng5=+) 17...f5 18.Qc2 Ra5 (18...dc4 19.Ne4 Be4 20.Be4 fe4 21.Qe4=+) 19.Rd1 (19.cd5 ed5 20.Rb1 Qd7=+) 19...Qb8 (19...dc4!? 20.Bg2 Bd5-/+) 20.Be4 fe4 21.Qb3 (21.d3!? ed3 22.Qd3=) 21...Qa8-/+ 22.Ne2 Qe8 23.Nc3 Qf7-/+ 24.Na4 dc4 25.Qc4 Bd5 26.Qc2 Rb5 27.Rb1 Bc6 28.Nb6 Rb1= 29.Qb1 Qb7 30.Qb2 Qa6 31.Qb3 Kf7 32.Nc4 Qa1 33.Kg2 Bd5 34.Qb2 Qb2=+ 35.Nb2 Bb3 36.f3= Bd5 37.fe4 Be4 38.Kf2 Bc6 39.Nd3+/– Ke7 40.Nc5 Kd6 41.d4 Kd5 42.Nd3 Ke4 43.Nc5 Kd5+/– 44.Nd3 Ke4+- 45.Ne5 Be8 46.Nf3 h6 47.h4 Bh5 48.Ne5+- Be8 49.g4 Ba4 50.Nf7 Bc6 51.h5 Bd7 52.Ne5 Bb5 53.Ng6 Bd7 54.Ke2 Bb5 55.Kd2 Kf3 56.Ne5 Ke4 57.Nf7+/– Bd7 58.Ke2 Bb5= 59.Kf2 Bd7 60.Ne5 Bb5 61.Nf3 Ba4 62.Nd2 Kd3 63.Nf3 Ke4 64.Ng1 e5 65.Ne2 ed4= 66.Nd4 Bd7 67.Kg3 Ke3 68.Nb3 Be6 69.Nc5 Bc8 70.Kh4 Kd4 71.Nb3 Ke5 ½–½. Bulcourf,Carlos – Foguelman, Buenos Aires, 1978.

9.Bc4 Bd7 10.Nf3 Be7 11.0-0 0-0 12.Nc3 (12.Qc2 Qa5 13.Bc3 Qb6+=) 12...b6 (12...Bd6 13.d3+=) 13.Qc2+= Bc8 14.Bb2 (14.e4 Bb7=) 14...Bb7= 15.Ra1 (15.e4 Qc7=) 15...Bf3 16.gf3 Nbd7 (16...Nd5 17.Bd5 ed5 18.Qf5=) 17.f4 e5 (17...Ne8 18.Bf1=) 18.Qf5 (18.fe5 Ne5 19.Be2 Qd6=) 18...ef4 (18...g6!? 19.Qg5 Ne4=) 19.Qf4+= Nh5 20.Qf5 g6 21.Qc2 Ne5 (21...Bf6 22.Bd5+=) 22.Be2+- Nf6 23.f4 Neg4 (23...Ned7 24.e4+-) 24.Ra6 Nd5?? (better 24...Nh6+-) 25.Nd5+- (25.Bg4?! Nb4 26.Qc1 Na6 27.ba6 Qa8+-) 25...Qd5 26.Bg4 h5 (26...Qd6 27.Ra7 Bh4 28.Rd7+-) 27.Qc3 (27.Rb6!? Kh7 28.Be2 Rd8+-) 27...f6 28.Qc2 (better 28.Be2 Qd6 29.Qc2+-) 28...hg4 29.Qg6 Kh8 30.Rb6 (30.Qg4? Rg8 31.Qg8 Kg8-+) 30...Qf7?? (30...Qf3 31.Bf6 Bf6 32.Qh6 Kg8 33.Rf6 Qd1 34.Kf2 Qd2 35.Kg3 Qe3 36.Kh4 Rf6 37.Qf6 Qh3 38.Kg5 g3 39.Qd8 Kg7 40.Qc7 Kg8 41.hg3 Qg3 42.Kf6 Qh4 43.Ke6 Qg4 44.Kd5 Qf3 45.Kc5 Qe3 46.Kc6 Qe4 47.Kb6 Qd4 48.Qc5 Qf6 49.Qc6 Qf8+-) 31.Qf5+- (31.Qg4 Rg8 32.Qg3 Rg3 33.hg3 Qg8 34.Bf6 Bf6 35.Rf6 Qg3 36.Kf1 Qf3 37.Ke1 Qb7-+) 31...Qh7 (31...Qb3 32.Qh5 Kg7 33.Qg4 Kh8 34.Qh5 Kg7 35.Rb7+-) 32.Qh7 (32.Rf6 Bf6 33.Bf6 Kg8 34.Qg4 Kf7 35.Qd7 Kg8+-) 32...Kh7 33.Rb7 Rf7 34.b6 Kg6 (34...Kg8 35.Rd7+-) 35.Rd7 f5 (35...Rg7 36.b7 Bd6 37.f5 Kh7 38.Rd6 Rb7 39.Bf6 Kg8+-) 36.b7 Bf6 (36...Rf8 37.Re7 Rd8+-) 37.Rf7 Kf7 38.Bf6 Kf6 39.b8Q c4 40.Qe5 Kg6 41.Qe6 (41.e4 c3 42.ef5 Kf7 43.Qe6 Kg7 44.Qe7 Kg8 45.f6 cd2 46.Qg7) 41...Kh5 42.Qf5 (42.Qf6 c3 43.Qg5) 42...Kh4 (42...Kh6 43.Qf7 g3 44.hg3 c3 45.g4 cd2 46.g5) 43.Qh7 1–0. GuestBZSR – planetZ, freechess.org, 2020.

9.Bc4 Nbd7 10.Nf3 Nb6 11.Be2 Be7 12.0-0 0-0 13.d4 cd4 14.Nd4 (14.Bd4 Nbd5+=) 14...Nbd5 15.Nd2 Qa5 16.Nc4 Qb4 17.Qc2 Bd7 Exerts pressure on the isolated pawn 18.Rb1 Qc5 19.Bb2 Rc8 20.Ba3 Qa7 21.Be7 Ne7 22.Qb3 Ned5 23.Bd3 g6 (23...Qc5 24.Rd1+=) 24.h3 Kg7 25.Qb2 Ra8 26.Ne5 Be8 (26...Qa3 27.Qd2+=) 27.Ng4 (better 27.e4 Nf4 28.Bf1+/-) 27...Ng4?? (better 27...Qa2+=) 28.Ne6 (28.Nf5 Kg8 29.Qg7) 28...Kh6 29.Qg7 Kh5 30.Qh7 Nh6 31.g4 Kh4 32.Qh6 1-0. BeepBeepImAJeep (2795) - chesshater (1960), lichess.org, 2016.

9.Bc4 Nbd7 10.Nf3 Be7 11.0-0 0-0 12.Qc2 b6 (12...Bd6 13.e4 e5 14.Bb2=) 13.d4 Bb7 14.Nbd2 cd4 (14...Qc7 15.dc5 Qc5 16.Bc3=) 15.Nd4 (15.Bd4 Qc7=) 15...Ne5 (better 15...Qa8 16.N2f3 Rc8=) 16.Ne6+- (16.Ne6 fe6 17.Be5+-) 1–0. GuestHVPN – GuestMVDD, freechess.org, 2018.

9.Nf3 c3 10.Nc3 Nbd7 11.Be2 Nb6 12.0-0 Be7 13.d4 (13.Na4 Nbd5+=) 13...0-0 (13...cd4 14.Nd4 e5 15.Nf3=) 14.dc5 Bc5 15.Qc2 Qe7 16.Rd1 Nbd5 17.Nd5 Nd5 18.h3 b6 19.Ne5 Bb7 20.Bf3 Ra8 21.Nc6 Qe8 22.Qb2 Bf8 23.Nd4 Qb8 24.Rc1?? (24.Nf5 ef5 25.Bd5 Bd5 26.Rd5 Qa7=) 24...Nf6?? (better 24...Ba3 25.Qd2 Bc1 26.Qc1 Qc7-+) 25.Nc6+= Qd6 26.Qb1 Nd5 27.Bd4 h6 (27...Rc8+=) 28.Rd1 (better 28.Bd5!? Qd5 29.e4+/-) 28...Bc6= 29.bc6 Qc6 30.Bd5 Qd5 (30...ed5 31.Qb6 (31.Bb6? Rb8-+) 31...Qe6 32.Qb2=) 31.Bg7+= (31.Qb6? e5-+) 31...Bg7? (better 31...Qa5 32.Bf6 Qh5+=) 32.Rd5+- ed5 33.Qb6 Be5 (33...Re8 34.Qd6+-) 34.f4 Bg7 35.Qc6 (35.Qd6 Ra1 36.Kf2 Ra2 37.Kf3 Rd2+-) 35...Rd8 36.Qc7 Re8 37.Kf2 d4 38.ed4 Bd4 39.Kg3 Re3 40.Kg4 Bg7 (40...Kg7 41.Qd6 Bf6 42.Kf5+-) 41.Qc8 Kh7 42.Qf5 Kg8 43.Qc8 Kh7 44.Qc2 Kg8 45.h4 Re6 46.h5 Re7 47.Qc8 Bf8 48.Qc2 Re6?? (48...Bg7 49.Kf5 Re6+-) 49.Qf5 Re7 50.Qf6 Re6 51.Qd4 Re7 52.f5 Re8 53.Kf3 Bg7 (53...Ra8 54.Qg4 Kh8 55.Qc4 Ra3 56.Kg4+-) 54.f6 Bf8 (54...Bh8 55.Qg4 Kh7+-) 55.Qg4 Kh8 56.Qf5 (better 56.Qd7 Rb8 57.Qf7 Rd8+-) 56...Kg8 (better 56...Re6+-) 57.g4 Re6 58.g5 Bd6 (58...hg5 59.Qg5 Kh7 60.Qf5 Kh8 61.Kg4+-) 59.gh6 (better 59.g6+-) 59...Be5 (59...Kh8 60.Kg4 Bf8 61.Kg5+-) 60.h7 (better 60.Qg5 Kf8 61.Qg7 Ke8 62.h7 Rf6 63.Ke4+-) 60...Kh8 61.Qg5 Rf6 62.Ke4 (62.Ke4 Kh7 63.Ke5 (63.Qe5?! Re6=) 63...Re6 64.Kf4+-) 1-0. BeepBeepImAJeep (2745) - Hausigel (2825), lichess.org, 2020.

9.Nf3 Be7 10.Bc4 Bd7 11.Ne5 0-0 12.0-0 Be8 (12...Qa5 13.Nc3+=) 13.f4 (13.d4 Qc7+=) 13...Nbd7 14.Qf3 b6?? (better 14...Nd5+=) 15.Nc6+- (15.Nc6 Ne5 16.Be5 (16.Nd8?! Nf3 17.Rf3 Bd8+=; worse 16.Ne5 Bd7+-; worse 16.fe5 Bc6 17.bc6 Ne8+-; 16.Ne7 Qe7 17.fe5 Nd7+-) 16...Bc6 17.bc6+-) 1–0. GuestFQXG – GuestSGNV, freechess.org, 2019.

10.Nf3 0-0 11.0-0 b6 12.d4 Qc7 13.Ne5 (13.dc5 Qc5 14.Nbd2 Nbd7=) 13...Bb7= 14.Nd2 (14.Qe2 Bd6=) 14...Rd8 (14...Rc8 15.dc5 Bc5 16.Bd3=) 15.Qb3 (15.Bd3=) 15...Nbd7 (better 15...cd4!? 16.Bd4 Bc5=) 16.Be6+- Ne5 17.de5 Bd5 (17...Nd5 18.Bf5+-) 18.Bd5 Nd5 19.Nc4 (19.Rd1 Qc8+-) 19...Nb4 (19...Qd7 20.Rd1 Qe6 21.e4+-) 20.Rd1 Rd1 21.Qd1 Qd8 22.Nd6 Kf8 (22...Qd7 23.Bc3+-) 23.Bc3 f6 24.f4 Qd7 25.e4 Bd6 (25...Qe6 26.Nf5+-) 26.ed6+- Ke8 (26...Na2 27.Be1 g6+-) 27.Bb4 cb4 28.Qd5 b3 (28...Kf8 29.e5 fe5 30.fe5 Qf5+-) 29.Qg8 1–0. DEFFM – GuestBRPR, freechess.org, 2018.

10.Nf3 0-0 11.0-0 b6 12.Ne5 Bb7 13.d4 Nbd7 (13...Qc7 14.dc5 Bc5 15.Qe2=) 14.Nc6+= Bc6 15.bc6 Nb8 16.dc5 bc5 (16...Nc6 17.Qd8 Rd8 (worse 17...Nd8 18.cb6 Nd7 19.Bb5 Nb6 20.Bd4+=) 18.cb6 Rb8=) 17.Qd8+- Bd8 (17...Rd8? 18.c7 Rc8 19.cb8B Rb8 20.Rd1+-) 18.Bf6 gf6 19.Bb5 Bb6 20.Na3 Rc8 21.Nc4 Bc7 22.Ra1 Kf8 23.Ra7 Be5? (better 23...Kg7+-) 24.Ne5+- fe5 25.c7 1–0. GuestDYSK – DrBelzmerde, freechess.org, 2019.

10.Nf3 0-0 11.Qc2 Nd5 (11...b6 12.d4=) 12.0-0+= Nd7 13.Nc3 (13.d4 Nb4 14.Qe2 Nb6+=) 13...Nc3 (13...N7b6 14.Bd3 f5 15.Nd5 ed5 16.Be5=) 14.Qc3 Bf6 15.Qc2 Nb6 (15...h6 16.Rd1+=) 16.Be2 (16.Bf6!? Qf6 17.Bd3+/-) 16...Ba1 17.Ra1 Qd5 Black intends c4 18.d4 c4 (18...cd4 19.ed4 Re8 20.Bd3+/-) 19.Ne5 (19.Ra5+/-) 19...Bd7 (19...Qb5 20.Nc4 Nc4 21.Bc4+=) 20.Nd7 (20.Nc4 Nc4 21.Bc4 Qd6+-) 20...Nd7? (better 20...Qd7 21.Bf3 Rc8=) 21.Bc4 Qg5 (21...Qd6 22.Bd3 Nf6 23.Rc1+-) 22.Be2 (22.Ra7 Rc8 23.Rb7 Qd8+-) 22...Nf6 (22...Qd8 23.Rc1+-) 23.Bf3 (23.Qc7!? Qd5+-) 23…Nd5 1-0. AhmedSultanov - ilias180274, lichess.org, 2019.

10.Nf3 Qa5 11.Nc3 Qb4 (11...0-0 12.0-0=) 12.Qb3 (12.d3 Nbd7=) 12...Qa5 (12...Qb3 13.Bb3 b6 14.Ke2=) 13.0-0+= Bd7 14.Ne5 0-0 15.Nd7 (15.d3 Qc7 16.Ne4 Ne4+=) 15...Nbd7= 16.Be6 (better 16.d3!?=) 16...fe6-/+ 17.Qe6 Rf7 18.f4 Nf8 19.Qc4 Qd8 20.d3 Ng4 21.Nd5 Bf6 (21...Nd7 22.e4-/+) 22.h3 Ba1 23.hg4 Bb2 24.Rb1 Bf6 25.Qc5 Ne6 26.Qc4 White prepares the advance b6 26...Bh4 27.b6 g5 (better 27...Nf8!?=+) 28.f5+/- Ng7 29.e4 1-0. GuestKZDC – GuestNJLM, freechess.org, 2021.

10.Nf3 Nbd7 11.0-0 0-0 12.d4 b6 13.Nbd2 Bb7 14.Qb3 cd4 15.Bd4 Nc5 16.Qc2 Nfe4 17.Rd1 Nd2 18.Nd2 Qa8 19.Ra1 Qb8 20.Be2 (20.Qc3 g6+=) 20...Bd6= 21.h3 Rc8 22.Qd1 (22.Nc4 Bd5=) 22...Be5 (22...Bh2 23.Kh1 Be5 24.Bf3=) 23.Nf3 (23.Be5 Qe5 24.Nc4 Qg5=) 23...Bf3 (23...Bd4 24.Nd4 (24.Qd4? Nb3 25.Qb2 Na1 26.Qa1 Rc5-+; 24.ed4?! Ne4=) 24...e5 25.Nf5=) 24.Bf3+= (worse 24.gf3 Bd4 25.ed4 Rd8-/+) 24...g6?? (better 24...Qc7+=) 25.Ra8+- Qa8 26.Ba8 Bd4 27.ed4 (27.Qd4?! Ra8 28.e4 h5+-) 27...Ra8 (27...Rd8 28.Bc6 h6 29.Qg4+-) 28.dc5 bc5 29.b6 Rb8 30.Qd6 c4 (30...Re8+-) 31.Qb8 (31.Qb8 Kg7 32.b7 g5 33.Qe5 Kg6 34.b8Q h6 35.Qg8 Kh5 36.Qf7 Kh4 37.Qg3) 1-0. BeepBeepImAJeep - shutterhand (2030), lichess.org, 2016.

9.Nf3 Qa5 10.Bb2 Nbd7 11.Bd3 (11.ed4 cd4 12.Bd4 Bd6+/-) 11...e5 12.ed4 ed4 13.0-0 h6 14.Re1 Kd8 15.Bf1 (15.h3 Be7=) 15...Bd6= 16.d3 Re8 17.Nbd2 Re1 18.Qe1 Nf8 19.Bc1 Ng6 20.Nb3 (20.Qd1!?=) 20...Qe1=+ 21.Ne1 b6 22.g3 Bb7 (22...Be6 23.Bd2=+) 23.f4 (23.Bg2 Bg2 24.Kg2 Ne7=) 23...Ne7 24.Bg2 Bg2 25.Kg2 Nd7 26.Nf3 f6 27.Nbd2 g5 28.Ne4 Bc7 29.fg5 fg5 30.Nf2 Nf5 31.g4 Ng7 (31...Ne3!? 32.Be3 de3=) 32.h4+= Bf4 33.Bf4 gf4 34.h5 Ne6 35.Nh4 Ke7 (better 35...Ne5!?=) 36.Ng6 (36.Nf5 Kd8+/-) 36...Kf6 37.Nh3 (better 37.Ne4!? Kf7 38.Kf3+/-) 37...Ne5= 38.Nhf4 Ng4 39.Nd5 Kg5 40.Nb6 Kh5 41.Kg3 Kg6 42.Kg4 h5 43.Kg3 Kf6 (43...Nd8 44.Kh4+-) 44.Kh4+- Ke5 45.Nd5 Kd6 46.Kh5 Nd8 47.Nf6 Nb7 48.Ne4 Ke5 49.Kg5 Ke6 50.Kf4 Kd7 51.Ke5 Kc7 52.Ke6 Kb6 53.Kd5 Na5 54.Nc5 1-0. BeepBeepImAJeep - Entertainment3ko (2510), lichess.org, 2017.

9.Nf3 e5 10.Ne5+/- Bd6 (10...Qa5 11.Bb2 de3 12.fe3+/-) 11.Nf3 (11.ed4 cd4 12.Bd4 0-0+/-) 11...Bg4 (11...Qa5!? 12.Bb2 Bf5+=) 12.ed4+/- Qe7 (12...cd4 13.Bd4 0-0 14.Be2+/-) 13.Qe2+- Bf3 14.Qe7 Ke7 15.gf3 Re8 (15...Nbd7 16.dc5 Nc5 17.d4+-) 16.dc5 Bc5 17.d4 Kf8 18.Kd1 (18.Kd2 Rd8 19.Ke3 Re8 20.Kd3 Bd6+-) 18...Bb4? (better 18...Bd4 19.Bd4 Rd8+=) 19.Bc3 Bc3 20.Nc3 Nbd7 (20...Rd8 21.d5+-) 21.Bd3 Ra8 22.Kc2 Nb6 (22...b6 23.Re1+-) 23.Kb2 (23.c5 Nbd5 24.Be4 Rd8+-) 23...Rc8 (23...Rd8 24.Ne2+-) 24.Kb3 (24.c5 Nbd5+-) 24...Nfd7 (24...Rd8 25.d5+-) 25.c5 Nc5 26.dc5 Rc5 (26...Nd7 27.Bf5 (27.Bh7?! Nc5 28.Kb4 g6+-) 27...Nc5 28.Kb4+-) 27.Re1 (27.Be4 Rc7 28.Ra1 Ke7+-) 27...f6 (27...g6 28.Kb4 Rc8 29.Be4+-) 28.Na4 (better 28.Bh7!? Nd7+-) 28...Na4 29.Ka4 Rc3 (29...g6 30.Ka5 Rd5 31.Be4+-) 30.Be4 b6 31.Bc6 (31.Kb4 Rc5 32.Bh7 Kf7+-) 31...Kf7 (31...Rc4 32.Kb3 Rh4+-) 32.Re8 (better 32.Bd5 Kf8 33.Re6+-) 32...Rc6?? (better 32...Rc4 33.Kb3 Rc6=+) 33.bc6+- Ke8 34.Kb5 Kd8 35.Kb6 Kc8 36.f4 g6 (36...g5 37.f5 g4 38.Kc5+-) 37.h4 h5 (37...Kb8 38.c7 Kc8 39.Kc6+-) 38.f3 f5 39.c7 (39.c7 Kd7 40.Kb7 Kd6 41.c8Q Kd5 42.Qd7 Kc5 43.Qg7 Kd5 44.Qg6 Kd4 45.Qf5 Ke3 46.Qe4 Kf2 47.f5 Kg3 48.f6 Kg2 49.f7 Kf2 50.f8Q Kg2 51.f4 Kh2 52.Qg8 Kh3 53.Qh1) 1-0. BeepBeepImAJeep (2490) - Chess_For_All (2340), lichess.org, 2018.

11.Qc2 0-0 12.Be2 Qd6 13.0-0 e5 14.d3 Ng4 15.h3 Nh6 16.Nbd2 f5 17.Bb2 Nd7 18.Rc1 b6 19.Qb3 Bb7 Black intends e4 20.Qc2 Re8 Black plans e4 21.Re1 Nf6 Black prepares the advance e4 22.Ng5 e4 23.de4? (better is 23.Nb3+=) 23...fe4-+ (worse is 23...Ne4 24.Bd3+/–) 24.Bg4? (better is 24.Bd3 ed3 25.Re8 Ne8 26.Qd3-+) 24...Nhg4 25.hg4 Qf4 Black prepares the advance e3 (25...d3 26.Qd1 Qg3 27.Kh1 Bf2 28.Bf6 Be1 29.c5 Qh4 30.Nh3 gf6 31.c6 Bd2 32.Qd2-+) 26.Nh3 Qg4 27.Nf1 e3 (27...e3 28.fe3 d3-+) 0–1. Barczi,Tibor (1685) – Kukel,Imre (2010), Dunajska Streda op, 1999.

11.d3 0-0 12.Nbd2 b6 13.Be2 e5 (13...Re8 14.Nb3=) 14.0-0 (14.Ne5!? Re8 15.Nef3+=) 14...Re8= 15.Nb3 Bb7 Black prepares e4 16.Nfd2 Nbd7 17.Bf3 e4 (better 17...Bf3!? 18.Qf3 Qa8=) 18.Ne4+/- Ne4 19.de4 Be4 20.Be4 (20.Bd4 Bf3 21.Qf3 Bd4 22.Nd4 Ne5+/-) 20...Re4+= 21.Nc1 (21.f3 Rh4 A) worse 22.Bd4 Rd4 23.Nd4 Nf8=+; B) worse 22.Nd4 Nf8 23.Kh1 Rd4 (worse 23...Bd4 24.g3+/-) 24.Bd4 Bd4=+; C) 22.f4+=) 21...Re6 (21...Ne5 22.Qa4=+) 22.Nd3 (22.Bd4? Rd6-+) 22...Ne5 23.Nf4 (23.Ne5 Re5 24.Qg4 Re6=+) 23...Rh6 24.Qb3 (24.Re1 Nc4 25.Qd3+=) 24...Qh4-+ 25.Nh3 Qg4 26.Qg3 (26.Kh1-/+) 26...Qe6?? (better 26...Qg3 27.hg3 Nc4-+) 27.Rd1 Rg6 (better 27...Qf5 28.Re1 Re6-/+) 28.Qh4?? The pressure on the isolated pawn grows (better 28.Nf4!? Qg4 29.Qg4 Rg4 30.g3=) 28...h6 (28...Nf3 29.Kh1 Nh4 30.Bd4 Qe4 31.Rg1 Rg2 32.f3 Qf3 33.Bc5 Rg1 34.Kg1 Qg2) 29.Nf4?? (better 29.Qh5 Rg4 30.Kh1 Nc4 31.Rf1-+) 29...Qg4 (better 29...Nf3! 30.Kh1 Nh4 31.Ne6 Re6-+ (31...fe6?! 32.Bd4 Rg2 33.Bc5 bc5 34.Rf1-+)) 30.Qg4= Rg4 31.g3 Nc4 (31...Rg5 32.Kg2=) 32.Bd4= Bd4 33.Rd4 Na3 34.Rd8 Kh7 35.Rb8 Nb5 36.Rb6 Nd4 (36...Rg5 37.Kg2=) 37.h4 g5 (37...Nf3 38.Kg2 Nh4 39.Kh3=) 38.hg5 (better 38.Nh5!? Nf3 39.Kg2 Nh4 40.Kf1+-) 38...Rg5+= (38...hg5? 39.Nh5 Nf3 40.Kg2+-) 39.Kg2 Nf5 (39...Rc5 40.Rb4 Ne6 41.Ne6 fe6 42.Rb6+=) 40.Rf6 (40.Rb7 Kg8+/-) 40...Kg7= 41.Ra6 Nh4 42.Kh3 Ng6 43.Ne2 Rf5 44.Kg2 h5 45.Nd4 Re5 46.Nf3 Rf5 47.Ra4 Rf6 (47...Rd5 48.Kf1=) 48.Ra5+= Kh6 49.Nh2 (49.Nd4 Ne7+=) 49...Re6= 50.f4 f5 (better 50...Re2!? 51.Kh3 Rf2=) 51.Nf3+/- Re2 52.Kf1 Re3 (better 52...Rb2 53.Nd4 Rb4 54.Nf5 Kh7 55.Ra7 Kh8+/-) 53.Ng5 (better 53.Kf2 Re4 54.Rf5+/-) 53...Rg3= 54.Ra8?? (54.Rf5 Rg4 55.Nh3 Rh4=) 54...Kg7?? (better 54...Nf4 55.Nf7 Kg7-+) 55.Ra7=+ Kf6?? (better 55...Kg8 56.Ra8 Nf8=) 56.Rf7 1-0. BeepBeepImAJeep (2685) - Philosopherr (2585), lichess.org, 2020.

11.d3 0-0 12.Nbd2 Re8 13.Be2 e5 14.0-0 Bg4 15.h3 Bh5 16.Ne1 Be2 17.Qe2 Qa5 18.Nc2 Nbd7 19.Nb3 Qb6 20.Nc5 Nc5 21.Bb2 Na4 22.Bc1 Nc3 23.Qe1 e4 24.de4 Re4 25.Qd2 Ne2 26.Kh1 Nc1 27.Rc1 Qc5 28.Qd3 Qe5 29.g3 Nd7 30.Rd1 Nc5=+ 31.Qd2 d3 32.Ne1 Re2 33.Qa5 h5 34.Nd3 Nd3? 35.Qd8+/– Qe8 36.Qe8 Re8 37.Rd3 Rc8 38.Rc3 b6 39.Kg2 f6 40.f4 Kf7 41.Kf3 f5 42.g4 fg4 43.hg4 Rc5 44.g5 g6 45.Ke4 Ke6 46.Rc2 Rf5 47.Rc3 Rc5= ½–½. valpa – ulibear, HCL–C2517 playchess.de, 2004.

11.d3 0-0 12.Be2 Nbd7 (12...Qd6 13.Nbd2=+) 13.0-0 (13.Bd4 Bd4 14.Nd4 e5+=) 13...b6 (13...e5 14.Nfd2=+) 14.Nfd2 (better 14.Nd4!? Qc7 15.Bf3+/-) 14...Bb7 15.Bf3 Bf3 16.Qf3 Ne5 17.Qe2 Qc7 18.Nb3 Ra8 19.N1d2 (worse 19.Nc5 bc5 (19...Ra1?! 20.Nb3 Ra8 21.Re1+=) 20.Nd2 Ra2-/+) 19...Qd6 20.h3 (20.Re1 Ng6=) 20...Ng6 (20...Ra2 21.f4 Nc4 22.Nc4 Re2 23.Nd6 Bd6 24.Bd4=+) 21.Nf3 The pressure on d4 grows (21.Ne4!? Ne4 22.Qe4=) 21...Nf4=+ 22.Qd2 e5 23.Re1? (23.Nc5 bc5 24.Re1-/+) 23...Bb4-+ 24.Qd1 (24.Qc2 Be1 25.Ne1 Qb4-+) 24...Be1 25.Qe1 (25.Ne1 Qb4-+) 25...Nd3 26.Qe2 (26.Qd1 Nf4-+) 26...Nc5 27.Nfd2 Nb3 28.Nb3 Qb4 29.Qd3 (29.Qe5 Qb3 30.Bd4 Qc4 31.Bb6 Re8-+) 29...Nd7 (better 29...Ra3 30.Qf5 Rb3 31.Qe5 Rb1 32.Kh2 Ra1 33.Qd4-+) 30.Bb2 (30.Kh2 Nc5 31.Nc5 bc5-+ (worse 31...Ra1 32.Ne4-+)) 30...Nc5 (30...Ra2!? 31.Qf5 Rb2 32.Qd7 Rb3 33.Qe8 Qf8 34.Qc6-+) 31.Nc5 bc5 32.Qe4 (32.Qf3 Rd8 33.Ba3 Qc4-+) 32...Rf8 (32...Re8 33.Qc2 d3 34.Qd3 Qb2 35.g3-+) 33.Bc1 (33.Qe2 h6-+) 33...Qc3 (better 33...Qc4!? 34.Qb1-+) 34.Bg5 Qc4 35.Qe5 (35.Be7 Re8 36.Qc6 Rb8-+) 35...d3 (better 35...f6 36.Bf6 Rf6-+) 36.Be7 (36.Qg3 Qb5 37.Bf6 g6-+) 36...Re8 (better 36...d2 37.Bf8 d1Q 38.Kh2 Kf8 39.Qb8 Ke7 40.Qe5 Kd7 41.Qf5 Kd6 42.Qg5-+) 37.Qd6 (37.Qf5-+) 37...d2 (37...h6 38.Kh2 Re7 39.Qe7 Qb5 40.Qd8 Kh7-+) 38.Qd2 Qb5 39.Qd6 (39.Qg5 Qb1 40.Kh2 c4-+) 39...c4 40.Bh4 (40.Qc7 Qb8 41.Qc5 c3-+) 40...c3 41.Qc7 Qd3 (41...Re1 42.Kh2 Qe5 43.Bg3 Qc7 44.Bc7-+) 42.Bg5 (42.Kh2 h6 43.Bg3 c2-+) 42...h6 43.Be3 (43.Bf4 g5 44.Bd6 c2-+) 43...c2 (43...Qd1 44.Kh2 c2 45.Qc6-+) 44.Kh2 Re3 45.fe3 Qd2 (45...g5 46.h4 Qd1 47.Qc8 Kg7 48.hg5 hg5 49.Qc3 f6 50.Qc7 Kf8 51.Qc8 Ke7 52.Qb7 Ke6 53.Qb3 Ke5 54.Qb5 Ke4 55.Qc4 Ke3 56.Qc5 Ke4 57.Qe7 Kf5 58.Qh7 Ke6 59.Qg8 Ke5 60.Qe8 Kf4 61.Qb8 Ke3 62.Qb6 Qd4 63.Qb3 Kd2-+) 46.Qc8= Kh7 47.Qf5 g6 48.Qf7 Kh8 49.Qf8 Kh7 50.Qf7 Kh8 51.Qf8 Kh7 52.Qe7 Kg8 53.Qe8 Kg7 54.Qe7 Kg8 55.Qe8 Kg7 56.Qe7 Kg8 ½-½. BeepBeepImAJeep (2780) - WGRobbyKatana (2660), lichess.org, 2019.

11.Bd3 0-0 12.0-0 b6 13.Qc2 Bb7 14.Ng5 h6 15.Nh7 Nh7 (15...Re8 16.Nf6 Qf6 17.Bh7 Kf8 18.Be4 Be4 19.Qe4=) 16.Bh7= Kh8 17.Be4 Qc7 18.Bb7 Qb7 19.Bb2 Nd7 20.d3 Ra8 21.Nd2 Ra2 (21...Qc7 22.Ne4=) 22.Ra1 (22.Qb1 Ra8+=) 22...Ra1 23.Ba1 f6 (23...Qc7 24.Nb3 Qf4 25.Bb2=) 24.Qd1 Ne5 25.Ne4 (25.Nb3 Qa8+=) 25...Kg8 (25...Qa8!? 26.Nc5 bc5=+) 26.f4+= Nd7 27.h3 (27.Bb2 Qa7+=) 27...Kf7 (27...e5 A) worse 28.Nc5 Nc5 (28...bc5?! 29.Qg4=) 29.Kf2 Qa7-/+; B) 28.Qg4+=) 28.Nc5 (28.Qh5 Kg8+=) 28...bc5 29.Qh5 Kf8 30.Qg4 f5 (30...Qa7 31.Qd1=) 31.Qe2 Kf7 32.Bb2 Qc7 33.Bc1 g6 34.Kf2 Kf6 35.Qf3 e5 (better 35...Qa5!? 36.Ke2 Kf7+=) 36.Qc6+- Qc6 37.bc6 Nb6 38.Ba3 e4? (better 38...Ke6 39.fe5 Na4+-) 39.Bc5+- Nc4 (39...Nc8 40.Bd4 Ke7 41.de4 Kd6+-) 40.c7 (40.c7 Ne5 41.fe5 Ke6 42.c8Q Kd5 43.Bf8 ed3 44.Qc5 Ke4 45.Qc6 Ke5 46.Bg7 Kf4 47.Qf6 d2 48.Qh4) 1–0. onur604 (2315) – romariorestrepo (2100), lichess.org, 2020.

11.Bd3 0-0 12.0-0 Qb6 13.Qc2 (13.Re1 Nbd7=) 13...Nbd7 14.Bb2 (14.Re1 Re8=) 14...e5=+ 15.Ng5 h6 16.Ne4 Ne4 17.Be4 Nf6 18.Bf3 Bg4 (18...Be6 19.d3=+) 19.Bg4= Ng4 20.Qf5 (20.Qe4 Qe6+=) 20...Qg6 (20...Qe6 21.Qe6 fe6 22.Ba3 Ba3 23.Na3=+) 21.Qg6 fg6 22.Ba3 Ba3 23.Na3 1–0. guest522 – guest14, chessclub.com, 2018.

11.Bd3 Qa5 12.Bb2 (12.Bd4? Bd4 13.Nd4 Qd8-+) 12...0-0 13.0-0 (worse 13.Bd4 Bd4 14.Nd4 Qd8 15.Bh7 Nh7-/+) 13...Re8 14.Bd4 (better 14.Re1=) 14...Bd4-/+ 15.Nd4 Qd8 16.Bh7 Nh7 17.Nf3 e5 18.d3 (18.d4!? Bg4 19.de5 Qd1 20.Rd1-/+) 18...Bg4-+ 19.Nc3 (19.Nbd2 Ng5-+) 19...Nd7 (better 19...Ng5!? 20.Kh1 Re6 21.Ng5 Bd1 (21...Qg5?! 22.f3 Bf5 23.Ne4-/+) 22.Ne6 Qd3 23.Rd1 Qc3 24.Rd8 Kh7 25.Ng5 Kg6-+) 20.h3 Bh5 21.Ne4 Nhf6 22.Ng3 Bg6 23.Re1 Nc5 24.d4 (24.Re5 Nd3 25.Re8 Qe8-/+) 24...ed4 25.Re8 Ne8 26.Qd4 (26.Nd4 Bd3 27.Ndf5-+) 26...Qd4 27.Nd4 Nd6 28.f4 (28.Nge2 Nc4 29.Nf4 Be4-+) 28...Bd3 (28...Nc4?! 29.f5 Bh7 30.Kf2-+) 29.b6 (29.Kf2 Bc4 30.b6 Nd7-+) 29...Nc4 30.Kf2 Ne4 (30...Nb6 31.Ngf5-+) 31.Ne4 Be4 32.Nb5 Nb6 33.Nd6 Bc6 34.g4 (34.g3 Nd5-+) 34...Nd5 35.f5 f6 36.Nc4 Kf8 37.Na5 Ke7 38.Kf3 Kd6 39.Kg3 (39.Ke4 b5-+) 39...Kc5 40.Nb3 Kc4 41.Nd2 Kd3 42.Nb3 b5 43.Na5 Bd7 44.h4 b4 45.g5 (45.h5 Kc3-+) 45...Bf5 46.gf6 Nf6 47.h5 (47.Kf4 Be6 48.Kg5 Bf7-+) 47...Nh5 48.Kh4 g6 49.Kg5 Kc3 50.Kh4 Be4 51.Kg5 Bd5 (better 51...b3 52.Nb3 Kb3 53.Kg4-+) 52.Kg6 Nf4 53.Kf5 Nd3 54.Kf6 Bf3 (better 54...Nb2 55.Ke5 Nc4 56.Kd5 Na5 57.Kc5-+) 55.Ke7 (55.Kf5 Nc5 56.Ke5 Nb7 57.Nb7 Bb7-+) 55...Nc1 (better 55...Ne5 56.Ke6 Nc6 57.Nc6 Bc6 58.Kd6-+) 56.Kd6 Nb3 57.Nb7 Bb7 58.Kc7 Kd3 (58...Nc5 59.Kd6 Kd4 60.Ke7 b3 61.Kf7 b2 62.Kg6 b1Q 63.Kf6 Qh7 64.Kg5 Qg7 65.Kh4 Bf3 66.Kh3 Qg4 67.Kh2 Qg2) 59.Kb6 Nd2 60.Kb5 b3 61.Ka4 b2 62.Ka3 (62.Ka5 Nc4 63.Ka4 Bc6 64.Kb4 b1Q 65.Kc5 Qb6) 62...b1Q 63.Ka4 Qb6 64.Ka3 Qb5 (64...Qb3) 65.Ka2 Kc2 66.Ka3 Qa5 (66...Qb3) 0-1. BeepBeepImAJeep (2725) - Hausigel (2730), lichess.org, 2020.

11.Bd3 b6 12.0-0 Nbd7 13.Re1 0-0 14.Qc2 (worse 14.Bd4 Bd4 15.Nd4 Nb8 16.Bh7 Kh7 17.Qc2 Kg8-/+) 14...Bb7 15.Nd4 Ne5 (15...Bg2 16.Kg2 Qa8 17.Nc6 Qa1 18.Rd1=) 16.Re5+= Bd4 17.Bd4 Qd4 18.Re3 Rd8 (18...Ng4 19.Bh7 Kh8 20.Bd3 Ne3 21.de3=) 19.f3 e5 20.Qc3 Qc5 21.Qa3 Qd4 22.Nc3 Nd7 23.Qa7 (23.Qe7 Nc5 24.Bf1 f6+=) 23...Rb8 (23...Nc5!? 24.Qb6 Nd3 25.Qb7 Nb2=+) 24.Nd5!+- Kf8 (24...Bd5 25.Qd7 Pinning (25.Qd7 Deflection)) 25.Qa3 Nc5 26.Nb6 f5?? (better 26...Kg8 27.Bc2 f6+-) 27.Qc5!+- Qc5 28.Nd7 Ke7 29.Nc5 (29.Nb8?? f4 30.Kf2 fe3 31.de3 Qd6-+) 29…Kf6 1–0. guest620 – guest192, chessclub.com, 2018.

10.fe3 Qa5 11.Bc3 Qc7 12.Be2 (12.Bf6 gf6 13.Be2 b6+=) 12...b6 (12...Nbd7 13.0-0=) 13.0-0 Bb7 14.d4 (14.Bf6 gf6 15.Qe1 Bg7=) 14...Be7 (14...Ng4!? 15.Re1 Bd6-/+) 15.Nbd2 (15.Bd3 Bd6=) 15...0-0 (15...Ng4!? 16.Qb3 Bd6=+) 16.Ne5 Rd8 17.Bf3 cd4 18.ed4 Bf3 19.Qf3 (19.gf3? Nd5 20.Qb3 Nc3 21.Qc3 Rd4-+; 19.Ndf3?! Bd6+=; 19.Nef3?! Bd6 20.Qe2 Nbd7=; 19.Rf3?! Bd6 20.Qe2 Nbd7=) 19...Bd6 20.Ne4 (20.Nb3 Nbd7 21.Nc6 Bh2 22.Kh1 Re8=) 20...Ne4= 21.Qe4 (21.Qf7? Qf7 22.Nf7 Rc8-+ (22...Nc3?! 23.Nd8 Ne2 24.Kh1=+)) 21...f6 22.Nc6 Nc6 (22...Bh2 23.Kh1 Re8 24.Ra1 Nc6 25.Qc6=) 23.bc6 (23.Qe6!? Kf8 24.bc6 Qc6 25.Bb4+=) 23...Bh2= 24.Kh1 Bd6 (better 24...Re8!?=) 25.Qe6+/- Kh8 26.d5 Qe7?? (better 26...Bf8+/-) 27.Rf6!+- Qe6 (27...gf6 28.Bd4 Double attack (28.Bf6 Decoy)) 28.Re6 (28.de6?! Rc8 29.Rf7 Rc6+-) 28...Kg8 (28...Bf4 29.Re7 Rg8+-) 29.Rd6! Rd6 (29...Rd6 30.c7 Passed pawn) 30.c7 (30.c7 Kf7 31.c8Q Rh6 32.Kg1+-) 1-0. BeepBeepImAJeep (2560) - slipslapmonster (2495), lichess.org, 2016.

10.fe3 Bd6 11.Be2 0-0 12.0-0 Nbd7 13.d4 b6 14.Nbd2 Bb7 15.h3 Qc7 16.Qc2 Bg3 17.Nb3 Re8 18.Bd3 (18.dc5 bc5 19.Bd3 e5=) 18...h6 (18...e5 19.Bf5 cd4 20.ed4 e4-/+) 19.Ne5 (better 19.dc5!? bc5 20.Nbd2=) 19...Ne5-/+ 20.de5 Be5 21.Bc3 Rd8 22.Rd1 (22.Rf2!?-/+) 22...Bc3-+ 23.Qc3 Qg3 24.Qc2 Qe3 25.Kh2 Be4 26.Be4 Rd1 27.Bh7? (27.Qd1 Qf4 28.Kh1 Ne4 29.Qd8 Kh7 30.Qd3-+) 27...Nh7 28.Qd1 Ng5 (better 28...Qf4!? 29.Kg1 Qc4 30.Qd8 Nf8 31.Qb6 Qb3 32.Qc5 Qd1 33.Kf2 Qd2 34.Kg1-+) 29.Nd2 Qf4 30.Kg1?? (30.Kh1-+) 30...Qe3 (better 30...Qd4 31.Kh1 Ne4-+) 31.Kh2 Ne4 (31...e5 32.Kh1-+) 32.Nf3 (32.Ne4 Qe4 33.Qd8 Kh7 34.Qb6 Qc4-+) 32...Nf2 (32...Qf4 33.Kg1-+) 33.Qd8 Kh7 34.Qd6 Qe4 35.Qd2 (35.Qc7 Qc4 36.Qf7-+) 35...f5?? (better 35...Nd3 36.Qc2 Qf4 37.Kh1 Qe3-+) 36.Qf2= Qc4 37.Qb2 Qf4 38.Kg1 Qe4 39.Kf2 Qc4 40.Ne5 Qd4?? (better 40...Qh4 41.Kf1 Qf4 42.Nf3 Qa4=) 41.Qd4+- cd4 42.Nd3?? (better 42.Ke2 Kg8 43.Kd3+-) 42...Kg6+= 43.Kf3 (43.Nc5! Kf6 44.Nd7 Ke7 45.Nb6+/-) 43...Kf6= 44.Kf4 (44.Nc5! Ke5 45.Nd7 Kd6 46.Nb6=+) 44...g5 (44...e5!? 45.Kg3 Ke6-/+) 45.Kf3=+ e5 Black plans f4 46.Nb4? (better 46.Nc5!=+) 46...e4-+ 47.Ke2 Ke5 (47...Ke6 48.Nc6 d3 49.Kd2-+) 48.Kd2? (48.Nc6 Kd5 49.Ne7 Ke6=) 48...e3 (better 48...f4-+) 49.Kd3=+ f4 (better 49...Kf4 50.Kd4 e2 51.Nd3 Kg3-/+) 50.Nc6+/- Kd5 51.Nd4 h5 52.Nf5 (better 52.Ne2 Ke5 53.Nc3+/-) 52...g4? (52...Ke5 53.g4 fg3 54.Ne3+=) 53.hg4?? (better 53.h4 f3 54.gf3 gf3 55.Ke3+-) 53...hg4+= 54.Ne7 (54.Nh6 g3 55.Ke2 Ke4=) 54...Kc5= 55.Ng6 Kb5?? (better 55...f3 56.gf3 gf3 57.Ke3 Kb5 58.Kf3 Kc4=) 56.Nf4+- e2 (56...Kc5 57.Ke3 Kc4 58.Ne6+-) 57.Ne2 Kc5 58.Nd4 b5 (58...Kd5+-) 59.Nb3 (59.Nb3 Kd5 60.Nd2+-) 1-0. BeepBeepImAJeep (2575) - DoruAdryan (2320), lichess.org, 2017.

10.fe3 Be7 11.Be2 0-0 12.0-0 b6 13.d4 Bb7 14.Nbd2 Nbd7 15.Bb2 Qc7 16.Qb3 Rd8 17.h3 Bf8 18.Bd3 g6 19.Qc2 Bg7 20.Rd1 cd4 21.ed4 Ne8 22.Be4 Nd6 23.Bb7 Nb7 24.Nb3 (24.Qe4 Na5=) 24...Rc8 (24...Nd6 25.Rc1=+) 25.Rc1= Bh6 26.Rd1 (better 26.Nbd2!?=) 26...Qc4 27.Qc4 Rc4 28.Nbd2 (better 28.d5!? Ndc5 29.de6 fe6 30.Nbd4-/+) 28...Rb4-+ 29.Ba1 Rb5 30.Nc4 Bg7 31.Nce5 Ne5 (31...Nf6 32.Bc3-+) 32.de5 Rd5 33.Rb1 b5 34.Bc3 Bf8 35.Nd4? (35.Kf1 b4! 36.Bd4 Na5-+) 35...b4 (better 35...Bc5 36.Kf1 Bd4 37.Bd4 Rd4 38.Rb5-+) 36.Ba1?? (better 36.Bb4 Rd4 37.Bf8 Kf8 38.Rb7-+) 36...Re5 (better 36...Bc5!? 37.Rd1 f6 38.ef6-+) 37.Nc6 Rb5 38.Na7 (38.Kf1 Bd6-+) 38...Ra5 (better 38...Bc5 39.Kf1 Ba7-+) 39.Nc6 Rb5 40.Na7 Bc5 41.Bd4 (41.Kf1 Ba7 42.Bb2-+) 41…Bd4 (41...Bd4 42.Kf1 Ba7-+) 0-1. BeepBeepImAJeep (2725) - omidnoroozi (2680), lichess.org, 2020.

10.fe3 Be7 11.Be2 0-0 12.0-0 b6 13.d4 Bb7 14.Nbd2 Nbd7 15.Qc2 Qa8 16.Bd3 Qa3 (16...Rd8 17.Bc3=) 17.Bb2 Qa8 18.Ra1 Qb8 19.h3 (19.Ne5 Ne5 20.de5 Ng4 21.Bh7 Kh8+=) 19...Rd8 20.Rf1 Nf8 21.Ne5 Ng6 22.Ndf3 Qc7 (22...cd4 23.Bg6 hg6 24.ed4+/-) 23.Nf7+/- Kf7 24.Ng5 Ke8 25.Ne6 Qg3 26.Nd8 (better 26.Ng7 Kf7 27.Nf5+-) 26...Qe3+= 27.Kh2?? (better 27.Qf2 Qf2 28.Rf2 Kd8 29.d5+=) 27...Kd8 (better 27...Bd6 28.Kh1 Qh3 29.Kg1 Bh2 30.Kf2 Bg2 (worse 30...Qg2 31.Ke1 Bg3 32.Kd1 Bf3 33.Kc1-+) 31.Bg6 Kd8-+) 28.dc5?? (better 28.d5=+) 28...Bc5-+ (worse 28...Qc5 29.Bg6 hg6 A) worse 30.Qg6 Bd6 (30...Qc4 31.Rd1 Nd5 32.Qb6 Kc8 33.Qe6 Kd8 34.Qg8 Kd7 35.Qg7+/-) 31.g3 Nh5-+; B) 30.Rd1 Ke8 31.Qg6 Kf8 32.Qd3+=) 29.Rf6 (29.Bf6 gf6 30.g3-+) 29...gf6 30.Bf6 (30.Bc3 Bd6 31.Kh1-+) 30...Kc7 31.Bf5 Bd6 32.Kh1 (32.Be5 Be5 33.g3 Qg3) 32...Qh3 (32...Qe1) 33.Bh3+- Nf4 (33...Kb8 34.Qf2 Bc7 35.c5+-) 34.Kg1 (34.Qh7 Kb8 35.Bd4 Nh3 36.Bb6 Ng5 37.Qg8 Bc8 38.Qg5 Bc7 39.Bc7 Kc7 40.Qe7 Kb6 41.Qd8 Kc5 42.Qc8 Kb4 43.b6 Ka4 44.b7 Kb3 45.b8Q Kc3 46.Qe5 Kb3 47.Qb7 Kc2 48.Qbb2 Kd3 49.Qbe2) 34...Kb8 35.Qb2 (35.Qh7 Bc7+-) 35...Bc5 (35...Nd3 36.Qe2 Nc5+-) 36.Bd4 (36.Kf1 Ng6 37.Bd4 Bd4 38.Qd4+-) 36...Bd4-+ 37.Qd4 Ne2 (37...Ne2 38.Kf2 Nd4-+) 0-1. BeepBeepImAJeep (2755) - xamax2000 (2750), lichess.org, 2020.

10.fe3 Be7 11.Be2 0-0 12.0-0 Nbd7 13.d4 b6 14.Nbd2 Bb7 15.Nb3 Qa8 (15...cd4 16.ed4 Bd6 17.Bd3=) 16.Bb2 Ne4 17.Qc2 Ndf6 18.Ra1 Qc8 19.Ne5 Rd8 20.Bf3 cd4 21.ed4 Nd6 (21...Qb8 22.Re1 Qa8 23.d5+=) 22.Bb7+/- Nb7 23.Nc6 Re8 24.Ra7 Bf8 25.c5 bc5 26.dc5 Nd7 27.Bd4 e5 28.Bf2 e4 29.Qc3 Nbc5? (29...Nd8 30.Nd8 Rd8 31.c6+=) 30.Bc5?? (better 30.Nc5 Nc5 31.Bc5+-) 30...e3?? (30...Nc5 31.Nc5 Qf5 32.Nb3 Qb5 33.Ncd4+/-) 31.Ra1 (better 31.Be3 Nf6 32.Bd4+-) 31...Nc5 32.Nc5 e2 (32...Qf5 33.Na6+/-) 33.Nd3 (33.Nb3 Qg4+-) 33...Bd6 34.Re1 (34.Qd4 Qc7 35.Kh1 Qd7+-) 34...Qg4 (34...Qf5 35.b6+-) 35.Nf2 Qh5 36.g3 (better 36.Qh3!? Qd5 37.Qd3+-) 36...Bc5+/- 37.Nd4 Qe5?? (better 37...Bd4 38.Qd4 Qb5+/-) 38.Nf3 (better 38.Re2 Bd4 39.Re5 Be5 40.Qc5+-) 38...Qc3-+ 39.Kg2 Bf2 (39...Qb3!? 40.Nh3-+) 40.Kf2 Qe3 (40...Qc5 41.Kg2-+) 41.Kg2 Rd8 42.b6 Rd1 (better 42...g5!? 43.b7-+) 43.b7 Qb6 44.Re2 Rd8 45.Re7 (45.h3 Qb7 46.Kf2 f6-+) 45...Rb8 (45...Qb2 46.Kh3 Qf6 47.Rc7 Qf3 48.Rc8 Qf5 49.Kg2 Rc8 50.bc8Q Qc8 51.h3 Qc2 52.Kf3 Qd3 53.Kf2 Qd2 54.Kf3-+) 46.Ne5 (46.Re2 Qb7 47.Kf2 Qb6 48.Kg2 Kf8-+) 46...g6 (46...Qd6 47.Rf7 Qe5 48.Rd7-+) 47.Nd7 (47.Nf3-+) 47...Rb7 (better 47...Qb2 48.Kh3 Rb7 49.Nf6 Qf6 50.Rb7 Qf5 51.Kg2 Qe4 52.Kf1 Qh1 53.Kf2 Qh2 54.Kf1 Qh1 55.Kf2 Qb7-+) 48.Nb6? (better 48.Re8 Kg7 49.Nb6 Rb6 50.h3-/+) 48...Re7-+ (48...Rb6?! 49.Kf3-/+) 49.Nd5 (49.Kf3 f5-+) 49...Re6 (better 49...Re2 50.Kh3 f5-+) 50.Nf6 (50.g4 Re5 51.Nf4 f5-+) 50...Kg7 (better 50...Rf6 51.g4 Rc6-+) 51.Ng4 h5 52.Nf2 f5 53.h4 Kf6 54.Nh3 Re4 55.Nf4 Ke5 (better 55...g5 56.hg5 Kg5 57.Nh3 Kf6-+) 56.Ng6 Kd4 57.Nf8? (better 57.Kf3-/+) 57...Ke3-+ 58.Nh7 Rd4 59.Ng5 (59.Nf6 Rd2 60.Kg1 Kf3 61.Nh5 Kg4-+) 59...Rd2 60.Kh3 (60.Kf1 Rb2-+) 60...f4 (better 60...Kf2 61.Kh2 Kf1 62.Kh1 Rg2-+) 61.gf4 Kf4 62.Ne6 Kf5 (better 62...Kf3 63.Ng5 Ke3-+) 63.Ng5?? (better 63.Nf4!-/+) 63...Rd3-+ 64.Nf3 (64.Kg2-+) 64...Rf3 65.Kg2 (65.Kh2 Kg4 66.Kg2 Rf4 67.Kh2 Rf2 68.Kh1 Kh3 69.Kg1 Rf3 70.Kh1 Rf1) 65...Rf4 (65...Kg4 66.Kh1 Kg3 67.Kg1 Rf5 68.Kh1 Rf1) 66.Kh3 (66.Kg3 Ke4 67.Kh3 Kf3 68.Kh2 Kf2 69.Kh3 Rf3 70.Kh2 Rd3 71.Kh1 Rh3) 66...Rh4 67.Kh4 ½-½. BeepBeepImAJeep (2670) - aashetty (2415), lichess.org, 2015.

10.fe3 Be7 11.Be2 Nbd7 12.0-0 b6 13.d4 Bb7 14.Nbd2 Ng4 15.Qb3 0-0 16.h3 Ngf6 17.Rd1 Qc7 18.Bb2 Ne4 (18...Ra8 19.Ba3=) 19.Ne4 Be4 20.Nd2 Bb7 21.Bf3 Bf3 22.Nf3 (22.gf3? Qg3 23.Kf1 Bh4-+) 22...Nf6 (22...cd4 23.ed4 Bd6 24.Qd3=) 23.d5 (23.dc5 Bc5 24.Be5 Qe7+=) 23...ed5= 24.cd5 Qg3 25.Be5 Qg6 26.d6 Bd8 27.Qc4 (27.d7 Ne4+=) 27...Ne4 (27...Nd7 28.Qd3+=) 28.Bf4+= Nf6 (28...Qe6 29.Qe6 fe6 30.Be5+=) 29.Ne5 Qf5 (29...Qe4 30.Rd3+=) 30.Nc6 h5 31.Rf1 (31.d7 Ne4+/-) 31...Qe4 32.Qe4 Ne4 33.Rd1 Nc3 (33...g5!? 34.Bh2 g4+/-) 34.Rd3+/- Nb5 35.Ne7 (better 35.Rb3 g5 36.Bh2 (36.Rb5?! gf4 37.ef4 f5+/-) 36...Nd6 37.Bd6+-) 35...Kh7= 36.Rd5 (36.Rb3 Na7 37.Ra3 Nb5=) 36...g6 (36...Be7 37.Rh5 Kg6 38.de7 Re8 39.Rg5 Kf6-/+) 37.Bg5? (37.Nc6 Nc3 38.Rd3 Ne2 39.Kf1 c4=) 37...Re8 (37...Nc3 38.Rd3 Ne4 39.Bf4 Be7 40.de7-+) 38.Bf6 (better 38.d7 Re7 39.Be7 Be7 40.d8Q Bd8 41.Rd8=+) 38...c4?? (38...Nd6 39.Rd6 Be7 40.Rb6 Bf6 41.Rf6-+) 39.g4 (better 39.Rb5 c3 40.Rb3+-) 39...Na7?? (better 39...Nd6 40.Rd6 Be7 (40...Re7?? 41.Rd8 g5 42.gh5 Re8 43.Re8 g4 44.Rh8) 41.Rb6 Bf6 42.Rf6 Kg7-+) 40.gh5+= Be7 41.de7 (41.hg6 fg6 42.d7 Rd8 43.Be7 c3=) 41...Nc6 (41...c3 42.Bc3 Re7 43.hg6 Kg6 44.Kf2+=) 42.Rd7 (42.Rd8 Rd8 43.ed8R Nd8 44.Bd8+/-) 42...c3 (42...gh5 43.Rd8 Nd8 44.ed8Q Rd8 45.Bd8+=) 43.Rc7 (43.hg6 Kg6 44.Rd6 Ne7 45.Bc3 Kh7 46.Bd4+= (worse 46.Rb6 Nd5 47.Rb7 Nc3 48.Rf7 Kg6=+)) 43...Ne7?? (better 43...Nb4 44.hg6 fg6=) 44.Be7+- (44.Re7 Re7 45.hg6 fg6 46.Be7 c2+-) 44...Re7?? (better 44...gh5 45.Kf2 b5+-) 45.Re7 c2 (45...gh5 46.Rf7 Kg6 47.Rb7+-) 46.Rc7 (46.Rf7 Kh6 47.Rc7 g5+-) 46...gh5 47.Rc2 Kg6 48.Rb2 f6 49.Rb6 Kf5 50.Rb5 Ke4 51.Rh5 f5 (51...Ke3 52.Rh7 f5 53.h4+-) 52.Rh6 (52.h4!? Kd3+-) 52...Ke3 (52...f4 53.ef4 Kf4 54.Rg6+-) 53.Rf6 (53.h4 Kf4 54.Rg6+-) 53...f4 (53...Kf4+-) 54.Kg2 f3 55.Rf3 Ke4 56.Kg3 Ke5 57.h4 Ke6 58.h5 Ke7 59.h6 Ke6 (59...Kd6 60.h7 Kc5 61.h8Q Kd5 62.Rd3 Kc4 63.Qc3 Kb5 64.Qb3 Kc5 65.Qc2 Kb4 66.Rb3 Ka5 67.Qa2) 60.h7 Ke7 (60...Ke5 61.h8Q Kd6 62.Qd4 Ke7 63.Re3 Kf7 64.Qd7 Kf6 65.Re6 Kg5 66.Qd5) 61.h8Q Ke6 (61...Kd6 62.Qd4 Ke7 63.Re3 Kf7 64.Qd7 Kf6 65.Re6 Kg5 66.Qd5) 62.Qg8 (62.Qd8 Ke5 63.Re3 Kf5 64.Qd6 Kg5 65.Re5) 62...Ke7 (62...Ke5 63.Qg5 Kd4 64.Qg4 Kd5 65.Rf5 Kd6 66.Qg6 Kd7 67.Rf7 Kd8 68.Qg8) 63.Qg4 (63.Qg6 Kd8 64.Rf7 Kc8 65.Qg8) 63...Ke8 (63...Kd6 64.Rf6 Kc5 65.Rf5 Kd6 66.Qg6 Kd7 67.Rf7 Kd8 68.Qg8) 64.Rf5 (64.Qg7 Kd8 65.Rf8) 64...Ke7 (64...Kd7 65.Rf6 Ke8 66.Qg7 Kd8 67.Rf8) 65.Qg6 (65.Qg6 Kd7 66.Rf7 Kd8 67.Qg8; 65.Qg7 Ke6 66.Qg6 Ke7 67.Rf7 Kd8 68.Qg8) 1-0. BeepBeepImAJeep (2580) - Amin_Cheraghi (2560), lichess.org, 2018.

9.Nf3 0-0 10.d3 Nbd7 11.Nbd2 b6 12.Be2 Bb7 13.Qc2 Qc7 14.h3 e5 15.e4 d4 16.Bb2 Nh5 17.Ne5 Ne5 18.Bh5 Qe7 19.Be2 Qg5 20.g4 f5 21.Nf3 Nf3 22.Bf3 fe4 23.Be4 Be4 24.de4 Qf4 25.Qe2 Be5 26.Rg1 Qh2 27.Qf1 Rf3 28.Bc1 Qh3 29.Qh3 Rh3 30.f4 Bc7 31.Bd2 Kf7 32.Kf2 Ra3 33.Ke2 Ra4 34.Rc1 Ra2 35.Rf1 Ra4 36.e5 Ra3 37.Rf3 Rf3 38.Kf3 g5 39.f5 Be5 40.Bg5 Kg7 41.Ke4 Bf6 42.Bf4 Bd8 43.g5 Kf7 44.Kd5 Ke7 45.Kc6 Kf7 46.Kd7 Be7 47.Kc7 1–0. Mroz – Guziec, corr AMM PL 1990–92.

9.Nf3 0-0 10.d3 Re8 11.Be2 dc4 12.dc4 e5 13.Ne5 Qa5 14.Bc3 Qc7 15.Nf3 Ne4 16.0-0 Bg4 17.h3 1–0. Bivens – Helgesen, corr 3GMM–25 1994–95.

9.Nf3 0-0 10.Be2 Nbd7 11.0-0 b6 12.d4 Qc7 13.Nbd2 Bb7 14.dc5 Nc5 15.Bf6 gf6 16.cd5 Bd5 17.Bc4 Bc4 (17...Bb7!?=+) 18.Nc4= Rd8 19.Qc2 Bf8 20.Nd4 Kh8 (20...Rd5 21.Ra1+=) 21.Nc6 Rd5 22.Ra1 (22.e4 Rd3+/-) 22...Kg7 (22...Nb7!? 23.Qb2 Kg7+=) 23.g3 Nd7 (23...Nb7!? 24.Qb3 Bc5+/-) 24.Ra7+- Qc8 25.Qa4 Rc5 26.Kg2 e5? (better 26...h6+-) 27.Nd6! Bd6 (27...Bd6 28.Qg4 Double attack) 28.Qg4 Kf8 29.Qd7 (29.Rd7?! Rc6 30.bc6 Qc6 31.e4 h5+/-) 29...Qd7 30.Rd7 Rd5 (30...Rb5 31.Rd6 f5 32.Rd8 Kg7 33.Rd7+-) 31.Rd8 Kg7 32.Na7 Rd2 33.Nc8 Bb4 34.Rd2 Bd2 35.Nb6 Kf8 (35...Ba5 36.Nd5 f5+-) 36.Nc4 Bb4 37.b6 Bc5 38.b7 Ba7 39.Na5 Bb8 40.Nc6 Bd6 41.b8Q (41.Kf3!? f5 42.e4 fe4 43.Ke4 h6 44.b8R Bb8 45.Nb8 f6+-) 41...Bb8 42.Nb8 Ke7 43.g4 h5 (43...Ke6+-) 44.gh5 Kf8 (44...f5 45.Nd7! f6 46.h6+-) 45.Nd7 Kg7 46.Kg3 Kh6 1-0. DEFFM – GuestRPIR, freechess.org, 2021.

9.Nf3 0-0 10.Be2 Nbd7 11.0-0 dc4 12.Bc4 Nb6 13.Be2 Bd7 14.Qc2 Nfd5 15.Rc1 Qc7 16.Nc3 c4 17.Ne4 Rc8 18.Nd6 Qd6 19.Ng5 f5 20.Bf3 Qe7 21.Bd5 Nd5 22.Nf3 Bb5 23.Qb2 Be8 24.Qd4 b5 25.d3 c3 26.Qe5 b4 27.e4 fe4 28.de4 Nf6 29.Nd4 Rc5 0–1. Scherbeijn – van der Kemp, corr 1995.

9.Nf3 Nbd7 (--> 8.Nf3 Nbd7 9.c4 Bd6).

9.Nf3 Qa5 10.Be5+= Qd8 11.Nc3 Be7 (11...dc4 12.Bc4 Ng4 13.Bf4+=) 12.cd5+- Nd5 (12...ed5 13.Bf6 Bf6 14.Nd5+-) 13.Bg7 Rg8 14.Be5 f6 15.Bg3 e5?? (better 15...Rg7+-) 16.Nd5+- 1–0. GuestPJFV – GuestBBRB, freechess.org, 2019.

9.Nf3 dc4 10.Bc4 Be7 11.0-0 0-0 12.Qb3 Qb6 Attacks the isolani on b5 (12...Bc8 13.Nc3+=) 13.d4 (13.Be5 Bd6+/-) 13...Rc8+= 14.Nbd2 cd4 (14...Be8 15.dc5 Qc5 16.Bd4+=) 15.Bd4+/- Bc5 16.Bb2 Be7 17.Ra1 (17.Rd1 Be8+/-) 17...Be8+= 18.Ra8 Rd8 19.Bc3 Qd6?? (better 19...Nbd7 20.Ba5 Ra8 21.Bb6 Nb6+/-) 20.Be5+- Qb4 21.Rb8 (21.Bb8?! Qb3 22.Nb3 Nd5 23.Bd5 ed5+-) 21...Rd2 (21...Rb8 22.Bb8 Nd7+-) 22.Bf6 gf6 23.Re8 (23.Re8 Kg7 24.Nd2+-) 1-0. DEFFM – Xekmat, freechess.org, 2021.

9.Nf3 Bd6 10.Be2 0-0 11.0-0 Qa5 12.Nc3 (12.Bf6 gf6 13.cd5 Bb5 14.Bb5 Qb5+=) 12...d4 (12...Rd8!?=) 13.ed4+= cd4 14.Nd4 e5 15.Nb3 Qb6? (15...Qc7 16.Na4+/-) 16.d3?? (16.c5 Bc5 17.Na4 (17.Nc5?! Qc5 18.Qb1 Re8=) 17...Bf2 18.Rf2+-) 16...Be6 17.Na4 Qd8 (17...Qa7 18.d4 Nbd7 19.de5 Be5 20.Nac5+/-) 18.Nac5 b6 (better 18...Bc8!?+/-) 19.Nb7+- Qc7 20.Nd6 Qd6 21.d4 (21.f4!? ef4 22.Bf6 gf6+-) 21...e4 22.d5 Bf5 23.Nd4 Nbd7?? (better 23...Bg6+-) 24.Nf5 Qf4 25.Ne7 Kh8 26.Bd4 (better 26.Qc1 Qc1 27.Rc1 Ra8+-) 26...g5 (26...Re8 27.Nc6+-) 27.Be3 (27.Qa1!? g4+-) 27...Qe5 (27...Qd6 28.Nc6+-) 28.Nc6 Qd6 29.Bg5 Ne8 (29...Kg7 30.Qd4+-) 30.Be7 Qh6 31.Qa1 f6 (31...Kg8 32.Bg4 Ndf6 33.Bf5+-) 32.Bf8 (32.Qa7 Ne5 33.Ne5 fe5 34.Bf8 Qf8 35.Qb6 Nf6+-) 32...Qf8 33.Bg4 (33.Bg4 Nc5 34.Qa8+-) 1-0. BeepBeepImAJeep (2665) - giganotosaurus (1860), lichess.org, 2017.

9.d3 e5 10.Nf3 d4 11.Be2= Bd6 12.e4 (12.0-0 0-0=) 12...g6 (12...Qa5 13.Nbd2=+) 13.Bb2 (13.0-0 0-0=) 13...Nh5 (13...Qa5 14.Qd2 Qd2 15.Nbd2=) 14.Bc1 Nf4 15.g3 (15.Bf4 ef4 16.0-0 0-0=) 15...Ne6 (15...Ne2 16.Qe2 Qf6 17.Bg5=+) 16.0-0 g5 (16...Qf6 17.Bh6=) 17.Ne1 (17.h3 Qf6=) 17...h5 (17...Qf6 18.Nf3=+) 18.Bh5= Nf6 19.Be2 (19.Bf3 Qc7=) 19...Ke7 (19...Qc7 20.Nd2=) 20.f3 (20.Nd2 Ke8+=) 20...Qg8 21.Rf2 Nh5 22.Bf1 Qh7 23.Bg2 Ng3 24.hg3 Qh2 25.Kf1 Qg3 26.Qa4 Nf8 27.Qa8 Ng6 28.Na3 Nh4 29.Ke2+/– f6 30.b6 g4 31.Nb5?? Ng2+= 32.Nd6 Kd6-/+ 33.Qb8 Ke6 34.f4 Ne1-+ 35.f5 Ke7 36.Qc7 Bd7 37.Qc5 Ke8 38.Qa3 Rh1 39.Qa8 Kf7 (40.Qf8 Kf8 41.Bh6 Ke7 42.Bf8 Kf8 43.Kd1 Qf2 44.c5 Nd3#) 0–1. Struck,Bernd Dieter – Breustedt,Werner (2240), GER–ch Seniors, 2001.

9.d3 e5 10.Nf3 Bd6 11.Be2 =+.

9.d4 Nb6 10.cd5 ed5 11.dc5 Bc5 =.

9.Nf3 Qa5 10.Bc3 Qa2 11.cd5 Nd5 (11...ed5 12.Bd3+=) 12.Be2 Nc3 (12...f6!?+=) 13.Nc3= Qa5 14.0-0 Be7 15.Qb3 0-0 16.d4 (16.Rc1 b6=) 16...b6 (16...cd4 17.Nd4 Nf6 18.f4=) 17.d5 (17.Bc4 Bf6 18.Ne4 Bb7 19.Nf6 gf6+=) 17...Nf6 18.Bc4 ed5 19.Nd5 Nd5 20.Bd5 Bf6 21.e4 Qc3 22.Qa2 Bg4 23.Nd2 (23.Qe2+=) 23...Bd8 (better is 23...Be2!? 24.Rb1 Bd3+=) 24.Nc4= Bc7 25.Qa7 Bh2?? (better is 25...Bd8+=) 26.Kh2+- Be2 27.Ra1 Qf6 (27...g6 28.Nb6 Bb5 29.Ra2+-) 28.Kg1 (28.Nb6?! Qf2 29.Qc7 Bb5+-) 28...h6 (28...Bc4 29.Bc4 h5+-) 29.Re1 (better is 29.Nb6 Bb5 30.Rc1+-) 29...Bc4= 30.e5 Qf4 31.Qa4 (31.Bc4 Qc4 32.Qb6 Qb4=) 31...Qd2= 32.Rd1 Qd5? (better is 32...Bb5 33.Bf7 A) worse is 33...Rf7 34.Qa8 (34.Rd2?? Ba4 35.e6 Rf8-+) 34...Rf8 35.Qf8 (35.Rd2 Ra8 36.Rd6 Ba4-+) 35...Kf8 36.Rd2+-; B) 33...Kh8 34.Rd2 Ba4=) 33.Rd5+- Bd5 34.Qa7 Rd8?? (better is 34...Rc8 35.Qb6 c4+-) 35.Qb6+- Rc8 (35...Rd7 36.Qb8 Kh7 37.Qd6 Rd6 38.ed6+-) 36.Qa6 (36.Qd6 Bc4 37.b6 Ba6+-) 36...Ra8 (36...Re8 37.Qd6 Ba8 38.Qc5+-) 37.Qd6 Be6 (37...Bb7 38.Qc5 Re8 39.Qc7+-) 38.Qc5 Rc8 39.Qd6 Rc1 40.Kh2 Rc2 (40...h5+-) 41.b6 (41.b6 Rb2 42.Qc7+-) 1–0. Tagirov,Kajum K (1865) – Mullabaev,Kamil, Roschinsky Open, 2010.

9.Nf3 b6 10.Nc3 Qc7 11.Be2 Bb7 12.0-0 dc4 13.Bc4 Bd6 14.h3 Rg8 15.Be2 g5 16.Ne1 h5 17.Bh5 Nh5 18.Qh5 Nf6 19.Qh6?? (better 19.Qe2=) 19...Qd8-+ 20.Ne2 e5 21.d4 (21.Be5 Be5 22.Ng3-+) 21...Bf8 22.de5 (22.Qf8 Rf8 23.dc5 bc5 24.Be5-+) 22...Bh6 23.ef6 (23.Ng3 Ne4 24.Nf5 Bf8-+) 23...Qd1 24.Ng3 Qa1 25.Nf3 Qf6 26.Ne4 (26.e4 Qb2-+) 26…Be4 (26...Be4 27.Nh2 Qb2-+) 0–1. GuestZQHY – GuestMTCH, freechess.org, 2017.

9.Nf3 b6 10.d3 Be7 11.Be2 0-0 12.Nbd2 Bb7 13.0-0 Qc7 14.Qb3 Ra8 15.Bb2 Ne8 16.d4 (16.Ra1 Ra1 17.Ba1 Nef6=) 16...Nd6 17.Ne5 cd4 18.Nd7 de3 19.Qe3 Qd7 20.Qg3 (20.cd5!? Ra2 21.Bc3=+) 20...Nf5-/+ 21.Qf4 (21.Qd3 Rd8-/+) 21...Ra2-+ 22.Bc3? (better 22.Rb1-+) 22...Bd6 23.Qg4 h5! 24.Qg5 (24.Qh5 d4 Passed pawn) 24...d4 25.Bd4 (25.Ra1 Rc2 (25...dc3?! 26.Ra2 cd2 27.Qd2-+) 26.Bd4 Nd4-+) 25...Nd4 26.Bh5 Qc7 27.g3 Be7 28.Qe3 Bc5 29.Qe1 Ra3 30.Qd1 (30.Ne4 Qe5 31.Bd1 Be4 32.Qe4 Qe4 33.Bh5 Nf3 34.Kh1 Nh4 35.f3 Qe2 36.Rg1 Qg2 37.Rg2 Ra1 38.Rg1 Rg1) 30...Ne2! 31.Qe2 (31.Qe2 Rg3 Mate attack; 31.Be2 Rg3 Mate attack) 31…Rg3! (31...Rg3 32.hg3 Qg3) 0–1. GuestMRCG – GuestFBVD, freechess.org, 2017.

9.Nf3 b6 10.Be2 Bb7 11.0-0 Bd6 12.cd5 ed5 (worse 12...Nd5 13.Bg7 Rg8 14.Bb2+=) 13.d3 0-0 14.Nbd2 Ne8 15.Qb3 Nc7 16.Bb2 Nf6 (16...Re8 17.Re1=) 17.Ra1 Qd7 The isolani on b5 becomes a target 18.Ra7 (18.Bf6 gf6 19.Qb2 Nb5 20.Qf6 Qe6=) 18...Rb8 19.Bf6 gf6 20.Qb2 (20.Qa4 Kg7= (20...Qb5? 21.Qg4 Kf8 22.Rb7+-)) 20...Nb5=+ 21.Qf6?? (better 21.Ra2=+) 21...Na7-+ 22.Qg5 Kh8 (better 22...Kf8-+) 23.Qf6= Kg8 24.Qg5 Kf8 25.Qh6 Ke7 26.Ng5 (26.Qg5 Ke8-+) 26...Qf5 27.Bh5 Qf6 (27...Qd3 28.Nf7 Bc7 29.Qg7-+) 28.Qh7 (28.Qf6 Kf6 29.Nf7 Bc7-+) 28...Qg5 29.Qf7 Kd8 30.Qe8 Kc7 31.Qf7 Qe7 32.Qg6 (32.Qe7 Be7 33.f4 Nc6-+) 32…Nc6 0–1. GuestNLFQ – GuestVQVB, freechess.org, 2017.

9.Nf3 Qc7 10.Qc2 (10.Nc3 Bd6=) 10...Be7 (10...Bd6 11.Be2=+) 11.Be2 0-0 12.0-0 b6 13.d4 (13.cd5 Nd5 14.Na3 Bb7=+) 13...Ne4 (13...Bb7 14.Nbd2=+) 14.Nbd2= f5 (14...Nd2 15.Nd2 cd4 16.Bd4=) 15.Bb2 (15.dc5 Ndc5 16.cd5 ed5=) 15...Bb7 16.Ra1 Ra8 (16...cd4 17.Nd4 Ndc5 18.cd5 Bd5 19.Ne4 fe4 20.Bc4 Bc4 21.Qc4=) 17.Ra8 Ba8 18.Ne4 fe4 19.Nd2 Qa7 (19...Bb7 20.Bg4 Kf7 21.dc5 Nc5 22.cd5 Bd5 23.f4=) 20.Bg4 (20.Bc3 Bd6+=) 20...Nf8 (20...Kf7 21.cd5 ed5 22.dc5 Nc5 23.Bh5 g6 24.Be2=) 21.dc5 Bc5 22.cd5 ed5 23.Nb3 Qa4?? (better 23...Bd6+=) 24.Qc3+- Qa7 (24...d4 25.Nd4 Bd4 26.Qd4 (26.ed4?! Bd5+-) 26...Qd4 27.Bd4+- (27.ed4?! Kf7+-)) 25.Nc5 bc5 26.b6 Qe7 27.Bc8 d4 (27...h5 28.Qa3 Bc6 29.b7 Bb7 30.Qa7+-) 28.ed4 cd4 29.Qd4 Bc6 (29...e3 30.fe3 Qf7+-) 30.Qc4 (30.Qc4 Kh8 31.Qc6+-) 1–0. GuestHQLF – GuestVLVK, freechess.org, 2020.

10.Na3 dc4 11.Nc4 Nc4 12.Bc4+= Be7 13.0-0 b6 14.Qc2 0-0 (14...Bb7 15.Ne5=) 15.Bb2 (15.Ng5 h6 16.Bf6 hg5+=) 15...Bb7 16.Be2 (16.Ng5 g6+=) 16...Qd7 17.d3 (17.Ne5 Qc7=) 17...Bf3 (17...Qb5 18.Rb1 Qc6 19.Qb3-/+) 18.Bf3=+ Qb5 (18...Rd8 19.Qa4 Qd3 20.Be5=+) 19.Ra1 (19.Rb1 Qa6=) 19...Nd5 20.e4 (20.Be5 Rd8=+) 20...Nb4-/+ 21.Qb3 (better 21.Qc4!? Qd7 22.Rd1-/+) 21...Qd3-+ 22.Qa4 (22.Qc3 f6-+) 22…Qc2 (22...Qc2 23.Qc2 Nc2-/+) 0–1. GuestZDGH – wren, freechess.org, 2017.

10.Na3 dc4 11.Nc4 Be7 12.Be2 Nc4 13.Bc4 b6 14.0-0 Bd6 15.Qc2 Bb8 (15...Bb7 16.d4=) 16.Bd3 (16.d4 Bb7+=) 16...Bb7= 17.Ne5?? (17.Bf6 Qf6 18.Be4 Bd5+=) 17...Qd5 (better 17...Be5 18.Be5 Qd5-+) 18.Nf3= Qh5 19.h3?? (better 19.e4=) 19...Bf3-+ 20.Bf6 (20.Rc1-+) 20...gf6 21.Be4 Rg8 22.Bf3 Qf3 23.g3 (23.Qg6 Rg6 24.g4 Qh3 25.f4 Qg3 26.Kh1 Rh6) 23...Rg3! 24.fg3 (24.fg3 Qg3 Mate attack) 24...Qg3 25.Kh1 Qh3 (25...Qh2) 26.Kg1 Qh2 0–1. GuestNJPY – GuestJHTW, freechess.org, 2017.

10.Na3 Bd6 11.Bc3 (11.Bd3 0-0=) 11...d4=+ (Black fights for the Initiative) 12.Ba5 (12.Bb2 e5 13.d3 0-0=+) 12...e5 13.ed4 (13.d3!?=+) 13...e4-/+ 14.Ng1 (14.Ng5 h6 15.Ne4 Ne4-/+) 14...cd4 15.Qa1 (15.Nb1 d3 16.Nc3 Bc5-+) 15...Bc5-+ 16.d3 Qe7 17.de4?? (better is 17.Kd1-+) 17...Ne4 (17...Ba3?! 18.f3 Qc5 19.Bb6 Bb4 20.Kf2 Qb6 21.Bd3-+; 17...Qe4?! 18.Kd1-+) 18.Bb6 (18.Bd3 Ng3 19.Ne2 Bb4 (19...Ba3 20.hg3 Bc5 21.Kf1+=) 20.Bb4 Qb4 21.Kd1 Nh1 22.Nd4 Nf2 23.Ke2 Nd3 24.Kd3 0-0-+) 18...Bb6 19.Nc2 Ng3 20.Be2 Nh1 21.Nd4 Qh4 22.Ngf3 Qf2 23.Kd2 0-0 24.Qh1 Bd4 (25.Qg1 Be3 26.Kc3 Qe2-+) 0–1. marus – Siget, internet, 2001.

10.Na3 Bd6 11.Be2 0-0 12.0-0 e5 (better 12...Qc7!?=+) 13.Be5 Be5 14.Ne5 d4 15.Nc2 d3 (15...Qd6!? 16.f4 Nfd7+/-) 16.Bd3+/- Re8 17.f4 Bg4 (17...Ng4!? 18.Be2 Ne5 19.fe5 Re5+-) 18.Qa1+- Re5? (18...Bh5 19.Qc3 Nfd7 20.Nd7 Qd7+-) 19.fe5 (19.Qe5?! Qd3 20.Qc7 h5 21.Qb6 Qd2 22.Qb7 Qc2 23.Qa8 Kh7=) 19...Qd3 20.ef6 Qc2 21.Qa5 Nd7 (21...gf6 22.Qb6 Qd2 23.Qf6 Qe3 24.Kh1 Qe6 25.Qd8 Kg7 26.Qg5 Qg6 27.Qc5 h6+-) 22.Qd8 Nf8 23.fg7 Kg7 24.Qf6 (24.Qf6 Kg8 25.Qf7 Kh8 26.Qf8) 1-0. onur604 (2320) - sierheli (2175), Casual Rapid game, lichess.org, 2021.

10.Na3 Bd7 11.Be2 dc4 (11...Bd6 12.Be5 Be5 13.Ne5=) 12.Ne5 Bd6 (12...Ne4 13.Bh5 Nd6 14.Qf3=) 13.Nac4 Nc4 14.Bc4 Be5 (14...0-0!?+=) 15.Be5+- Qb6 (15...Bc8 16.0-0+-) 16.0-0 (16.Qa1 Ke7+-) 16...0-0 17.Bf6 (17.d4 Rd8+-) 17...gf6 18.Qg4 Kh8 19.Qh4 e5? (better 19...Kg7!?+-) 20.Bd3+- f5 21.Qe7 Qd8 (better 21...Rd8+-) 22.Qe5 f6 23.Qc5 Rg8 (23...Be6 24.Bf5 b6 25.Qc2 Bf5 26.Qf5 Qd2 27.h3+-) 24.Rc1 (better 24.Bc4 Re8 25.Qd5+-) 24...Bc6 (24...f4 25.Qc7 fe3 26.fe3 b6+-) 25.Qf5 Rg2 26.Kf1 Rg6 27.bc6 bc6 (27...Qc7 28.cb7 Qc1 29.Ke2+-) 28.Rc6 Kg7 29.Ke2 (29.Ke2+-) 1–0. GuestKKBR – HNmv, freechess.org, 2020.

10.Qc2 dc4 11.Bc4 Nc4 12.Qc4 Qd5 13.Qa4 Qe4 14.Nc3 Qa4 15.Na4 Bd7 16.Nc3 (16.Bf6 gf6 17.Nc3 e5=) 16...Bd6+= 17.0-0 0-0 18.d4 c4 19.h3 Nd5 20.Rb1 Ra8 21.g3 (better is 21.Bb2!?-/+) 21...Ra1!-+ 22.Ra1 Nc3 23.Ra8 Bf8 24.Rb8 (better is 24.b6 Bb5 25.Ra7-+) 24...Bb5 (24...Nb5?! 25.Ne5 Bc6 26.Nc4+=) 25.Ne5 (25.Rb7 Bc6 26.Rf7 Kf7 27.Ne5 Kf6 28.Nc6-+) 25…f6 (25...f6 26.Nf3 Ne2 27.Kh2 Bc6-+) 0–1. Nemeth,Laszlo1 (1975) – Halasz,Ferenc (2110), HUN–chT2 Erkel, 2007.

10.Qc2 dc4 11.Bc4 Nc4 12.Qc4 Be7 13.0-0 b6 14.Nc3 Bb7 15.Qe2 (15.e4 0-0=) 15...0-0=+ 16.d3 Nd5 (16...Bf3 17.Qf3 Qd3 18.Qb7-/+) 17.Nd5 Qd5 18.e4 Qb3 19.Qb2 (19.d4 Ra8 20.dc5 Bc5-/+) 19...Qb2-/+ 20.Bb2 Ra8 (20...Rd8!? 21.Ne5 f6-/+) 21.Ra1= Ra1 22.Ba1 f5 23.Nd2 g6 (23...Bc8 24.ef5 ef5 25.Nc4=) 24.f3 Bc8 25.Nc4 Bd7 26.Na3 Kf7 27.Kf2 Bf6 28.Bf6 Kf6 29.Ke3 e5 30.f4 (30.ef5 gf5 (worse 30...Bf5 31.Nc4+-) 31.g3 Ke6=) 30...ef4=+ 31.Kf4 g5 32.Ke3 Ke5 Black prepares the advance f4 (32...f4 33.Kd2=+) 33.g3 (33.Nc4 Ke6=) 33...f4 34.gf4 gf4 35.Kf3 Kd4 36.Nc4? (better 36.Kf4 Kd3 37.Ke5=+) 36...Bb5-+ 37.Nb6 (37.Kf4 Bc4 38.dc4 b5 39.cb5 c4+=) 37...Bd3 38.Kf4 Be4 39.Nc4?? (39.h4-+) 39...Kc4 40.Ke4 Kb3 0–1. GuestVBSY – GuestVZBJ, freechess.org, 2017.

10.d3 Bd6 =.

10.cd5 ed5 11.Be2 Be7 Black prepares c4 12.0-0 0-0 13.d4 c4 14.Nc3 Bg4 15.Ne5 Be2 16.Qe2 Bd6 17.f4 (better 17.e4=+) 17...Ne4 (better 17...Re8-/+) 18.Ne4+= de4 19.Nc4 f5 (19...Nd5!?+=) 20.Nb6+/- Qb6 21.Rc1 Ra8 22.Qc4 Kh8 (better 22...Kf8!?+/-) 23.Qc8+- Qd8 24.Qb7?? (better 24.Qf5 Ba3 25.Rc4+-) 24...Ra1?? (better 24...Bf4 25.d5 Be3 26.Kf1 Bh6+=) 25.Ra1+- Bf4 26.Ra8 (26.Ra8 Be3 27.Kf1+-; 26.ef4 Qd4 27.Kf1 Qa1 28.Ke2 Qb2 29.Kf1 Qc1 30.Ke2 Qc2 31.Kf1 Qd3 32.Ke1 Qe3 33.Kd1 g6 34.Qb8 Kg7-/+) 1-0. BeepBeepImAJeep - larsenio (1700), lichess.org, 2017.

10.Qb3 0-0 11.Be2 dc4 12.Bc4 Qe7 13.0-0 b6 14.Na3 Bb7 15.Be2 Bc7 16.h3 e5 17.d3 e4 18.de4 Ne4 19.Nc4 Kh8 20.Rd1 f5 21.Qb2 f4 (better is 21...Rg8=) 22.Qg7!+- Qg7 23.Bg7 Kg7 24.Rd7 Rf7 25.Rf7 Kf7 26.ef4 Bf4 27.Nb6 Ke7 28.Nc4 (better is 28.Na4!?+-) 28...Nc3+/– 29.Bd3 Bf3 30.gf3 Nb5 31.Nb6 Nc7 32.Bh7 Kd6 33.Be4 Ke5 34.Kf1 Kd4 35.Ke2 c4 36.Kd1 Nb5 37.Nd5 Nc3 38.Nc3 Kc3 39.Ke2 (better is 39.Bd5!?+-) 39...Kd4 40.h4 Ke5 41.h5 Bh6 42.Kd1 Kf4 43.Kd2 Bg7 44.h6 Bh6 45.Kc3 Bg5 ½–½. Kalanyos,Ferenc (2000) – Horvath,Janos (2125), HUN–chT2 Asztalos, 2007.

10.d4 =.

10.Be2 0-0 11.0-0 b6 12.d3 Bb7 13.Nbd2 Qc7 14.Bb2 Ra8 (14...dc4 15.dc4 e5 16.Nh4=+) 15.Qb3 Ne5 16.Rc1 (16.Ne5 Be5 17.Be5 Qe5=) 16...Nfg4 (16...dc4 17.dc4 Nf3 18.Nf3=) 17.Ne5= Ne5 18.g3 dc4 19.dc4 Ng6 20.f4 e5 21.Bf3 ef4 (21...Bf3 22.Nf3 Qe7 23.f5=) 22.ef4 Rd8 (22...Bf3 23.Qf3 Ra2 24.Qb3=) 23.Qc3 Bf8 24.Ne4 Rd4 25.Qe3 f5 (25...Rd7 26.Re1+=) 26.Ng5+/- (worse 26.Bd4 cd4 27.Qd3 Be4 28.Be4 fe4 29.Qe4 Bc5=+) 26...Bf3?? (better 26...Rd6+/-) 27.Qe6+- (27.Qf3?! Rd2 28.Bc3 Rd6+-; 27.Nf3?! Re4 28.Qd3 Qd6 29.Qd6 Bd6+=; 27.Bd4?! Qd7 28.Bg7 Bg7 29.Nf3 Bf6+-) 27...Kh8 28.Bd4 (28.Nf3?! Rd6 29.Qf5 Qd8+/-) 28...Nf4 (28...cd4 29.Nf7 Qf7 30.Qf7 d3+-) 29.Nf7 (29.Qh6! Nh3 30.Qh3 h5 31.Qf5 Qg3 32.hg3 cd4 33.Qf8) 29...Qf7+- 30.Qf7 (30.Qf7 Ne2 31.Kf2 Bd5 32.Qf8 Bg8 33.Bg7) 1-0. onur604 (2320) - barquero (2150), Casual Rapid game, lichess.org, 2021.

10.Be2 0-0 11.0-0 b6 12.d4 Bb7 13.Nbd2 cd4 14.ed4 Qc7 15.Qc2 dc4 16.Qc4 Rc8 17.Qc7 Bc7 (17...Rc7 18.Bd3=+) 18.Bb2 Nd5 19.g3 N7f6 20.Ra1 Bb8 21.Nc4 Ne4 22.Nfe5 Rd8 (22...f6 23.Nd7 Nd6 24.Nd6 (24.Ndb6? Nb6 25.Nb6 Rc2-+; 24.Ncb6? Nb6 25.Nb6 Rc2-+) 24...Bd6 25.Bg4=) 23.Bf3+= Nd6 24.Bd5 Bd5 (better 24...ed5!? 25.Nd6 Rd6+=) 25.Nb6+/- Nb5 26.Nd5 ed5 27.Nc6 Rf8 28.Ra5 Nd6 29.Rd5 Nc4 30.Ne7 Kh8 31.Bc3 h6 32.Nf5 Kg8 33.Bb4 Re8 34.Rd7 Nb6 35.Rb7 Nd5 36.Ne7 Ne7 37.Be7 Rc8 38.d5 Be5? (38...Bc7+-) 39.d6 Rc1 40.Kg2 Rd1 (40...Bd6 41.Bd6 Rd1+-) 41.d7 Bf6 1-0. onur604 (2320) - comfortable (2300), Casual Rapid game, lichess.org, 2021.

10.Be2 0-0 11.0-0 dc4 12.Bc4 e5 13.d3 Nb6 (Better is 13...Qe7!?=+) 14.Be5+= ½–½. Nemeth,Laszlo – Szoboszlai,Zita, Cseppko op–A, 2002,

10.Be2 0-0 11.0-0 Qc7 12.Nc3 Nb6 13.d3 e5 14.e4 d4 15.Nd5 Nfd5 16.ed5 f5 17.h3 Qe7 18.Re1 Re8 19.Bb2 Bc7 20.Bc1 Qd6! 0–1 (56.). Karker – Weiss, corr Dyckhoff 1954.

10.Be2 dc4 11.Bc4 b6 12.0-0 Bb7 13.d3 Qa8 14.Nbd2 g5 (14...0-0 15.Qb3 Qe8 16.Bc3=) 15.e4 (15.Ne4!? Be4 16.de4+=) 15...g4= 16.Ne1 Qb8 17.g3 h5 18.Ng2 Be5 19.f4 gf3 20.Nf3 Ba1 21.Qa1 Ke7 22.Qc1 Rg8 23.Qf4 Qf4 24.gf4 Ne8 25.Kf2 Nd6 26.Ne3 Ra8 27.Rb1 Ra4 28.Nd2 Nc4 (28...e5 29.Kg3+=) 29.Nec4= Ra8 30.Rg1 Rh8 (30...Ra4 31.Ke3+=) 31.Nf3+/– Ra8 32.Ke3 Ra4 (32...Ra2!?+/–) 33.Nfe5+- Ne5 34.fe5 Be4 35.Ke4 Rb4 36.Rg7 Kf8 37.Rh7 Kg8 38.Rh5 Rb5 39.Rg5 Kf8 40.Ke3 Rb4 41.Rg2 b5 42.Nd6 Rb3 43.Ne4 c4 44.Nc5 Ra3 45.Rb2 cd3 46.Nd3 Ra5 47.Rb4 Kg7 48.Rg4 Kh7 49.Rf4 Kg7 50.h4 Ra4 51.Nb4 Kg6 52.Kd3 Ra1 53.Nc6 Rd1 54.Kc3?? Kg7?? 55.Nb4 Kg6 56.Nd3 Kh5 57.Nf2 Rb1 58.Rf7 Kh4 59.Rf6 b4 60.Kc2 (60.Kc2 Ra1 61.Nd3 Ra2 62.Kb3 Ra3 63.Kc4+- (63.Kb4?! Rd3 64.Kc4 Ra3+-)) 1–0. Struck,Bernd Dieter (1980) – Daum,Dieter (2135), GER–ch Seniors, 2003.

11.d3 Qb6 =+.

11.cd5 ed5 12.Be2 Nb6 =+.

11.cd5 ed5 12.Be2 Re8 =+.

11.Be2 Nb6 12.Qb3 Qc7 (12...dc4 13.Bc4 Nc4 14.Qc4-/+) 13.Na4 (13.d3 Qe7=) 13...Na4 14.Qa4 e5 15.cd5 Nd5 16.Qh4 (16.Qe4 Nf6 17.Qa4 b6+=) 16...Nf6 (16...Bf5 17.0-0+=) 17.h3 Re8 Black prepares e4 18.Ng5 (18.0-0 h6 19.e4 Qa5-/+) 18...h6 (18...Bf5!? 19.Qa4 h6+=) 19.Ne4= Ne4 20.Qe4 f5 21.Qc2 e4 22.Bh5 Re7 (22...Rf8 23.Qa2 Kh7 24.0-0=) 23.0-0= Qa5 24.Qc3 (better is 24.Be2=) 24...Qb5-/+ 25.Bg6 c4 26.Rc1 Be6 27.Bb2 Rc7 (27...Bb4!? 28.Qc2 Qc6-/+) 28.Ra1+= Bf8 29.Ra5 Qd7 30.Qe5 Rc8 31.Bf5 Bf5 32.Qf5 Qf5 33.Rf5 Rc5 34.Rf8+/– Kf8 35.Ba3 b6 36.Bc5 bc5 37.h4 Ke7 38.Kf1 Ke6 39.Ke2 Kf5 40.f3 g5 41.g4?? Ke5-/+ 42.h5?? ef3-+ 43.Kf3 Kd5 44.Kf2 c3 45.dc3 Ke4 46.c4 Kd3 47.Kf3 Kc4 48.Ke4 Kb4 49.Kd3 Kb3 50.Kd2 c4 51.e4 Kb2 0–1. Kleine,P (1870) – Gonzalez Garcia,G (2215), III Montalvo Mem, Gran Canaria ESP, 2010.

11.Be2 Nb6 12.d3= dc4 13.dc4 Qe7 (13...e5 14.0-0=) 14.Qc2 (14.0-0 e5=) 14...e5 15.Nd2 Bg4 16.f3 Bh5 (16...Be6 17.0-0=) 17.0-0 Bb8 (17...Bg6 18.e4=) 18.Rd1 Ba7 (18...Bg6 19.e4=) 19.e4 (19.Bd3 Rd8+=) 19...Qd6 (19...Bg6 20.Bd3+=) 20.Nf1 Qc7 21.Ne3 Bg6 22.Ncd5 Nbd5 23.Nd5 Nd5 24.Rd5 f6 25.Qd2 Bf7 26.Rd7 Qb8? 27.Qa5+- Qc8 28.Rf7! Rf7 29.Qa7 Rd7 30.Bc3 Rd8 31.Ba5 Qa8 32.Qa8 Ra8 33.Bb6 Rc8 34.Bf1 g5 35.g3 Kf7 36.Bh3 Ra8 37.Bc5 Ra4 38.Bf1 h5 39.Kf2 (39...Ra2 40.Be2+-) 1–0. Kreuzer,Uwe – Mephisto MM4, 1989.

11.Be2 Nb6 12.d3= Qc7 13.Na4 =.

11.Be2 dc4 12.Bc4 Nb6 13.Be2 e5 14.Qc2 Bg4 (14...Qe7 15.d3=+) 15.0-0 (15.Ne4 Re8=+) 15...Qd7 (15...Qe7 16.h3 Bh5 17.d3=) 16.Rd1 (16.d3 Ra8=) 16...Nbd5 (16...Ra8 17.d3=) 17.Nd5 Nd5 18.Qe4 (18.h3 Nb4 19.Qe4 Bf3 20.Qf3 Re8=) 18...Nf6=+ 19.Qc4 Qc7 20.h3 Be6 21.Qc2 (21.Qc3 Ra8=) 21...h6 (21...Bd5 22.d4 ed4 23.ed4=+) 22.Rc1 (22.b6 Qb6 23.Be5 Be5 24.Ne5 Bd5=) 22...Qb8 (22...Ra8 23.Bc4 Bc4 24.Qc4=) 23.d3 (23.Bc4 Bc4 24.Qc4 Re8=) 23...Nd7 (23...Nd5 24.Bb2=) 24.Nd2 (24.d4 ed4 25.ed4 Rc8=) 24...f5 (24...Qc7 25.Bf3=) 25.Nc4+= Be7 (25...b6 26.d4 ed4 27.Nd6 Qd6 28.ed4+=) 26.d4 (26.Bf3 Bg5+=) 26...cd4 27.ed4 ed4 (27...e4 28.d5 Bd5 29.Ne3+=) 28.Bd4+= Bf6 29.Bf6 Nf6 30.Ne3 (30.Bd3 Qf4=) 30...Rc8 31.Qb2 (31.Bc4 Kh8 32.Be6 Rc2 33.Rc2 Qe5 34.Bf5 g5+= (34...Qb5? 35.Rc8 Ng8 36.Be6+-)) 31...Ne4? (better is 31...Rc1 32.Qc1 Qe5=) 32.Nc2?? (better is 32.Bc4 Rc4 33.Nc4+- (33.Rc4?! Bc4 34.Nc4 Qe8=)). Sternik,Ryszard – Grzelak,R, Poland, 1966.

12.0-0 dc4 13.Bc4 Bb7 14.Bb2 =+.

12.0-0 dc4 13.Bc4 Bb7 14.d3 =+.

12.cd5 ed5 13.0-0 Bb7 =.

12.cd5 ed5 13.0-0 Re8 =+.

13.Qc2 dc4 14.Rc1 -/+.

13.Qc2 Qc7 14.cd5= ed5 15.Qf5 (15.d4 cd4 (15...Ra8 16.Bb2 c4 17.Ra1 Ra1 18.Ba1 Nf8 19.Bb2) 16.ed4 Re8= (16...Ne4 17.Rc1 Qb8 18.Qb3 Rc8 19.g3) 17.Bb2 Ne4 18.Rc1 Bf4 19.Ne4; 15.Bb2 d4 16.Na4 Be4 17.d3 Bf3 18.Bf3 Bh2 19.Kh1 de3; 15.Na4 h6 16.Bb2 Ra8 17.Rc1 Ne4 18.h3 Qd8 19.Nc3; 15.Re1 d4 16.Na4 de3 17.de3 Be4 18.Qd2 Bf3 19.Bf3; 15.Rc1 Ra8 16.g3 h6 17.Na4 Qd8 18.Bb2 Ne4 19.Ra1; 15.Qd3 Ra8 16.Bb2 c4 17.Qc2 Nc5 18.g3 Ne6 19.Nd4; 15.h3 d4 16.Na4 Re8 17.Re1 de3 18.de3 Be4 19.Qb3) 15...d4 16.ed4 cd4 17.Nd4 Bh2 18.Kh1 Be5 (18...Bf4 19.Nc6-/+ (19.Rd1+=); 18...g6 19.Qh3) 19.Nf3 (19.Nb3 Re8 20.d4 Bf4+=; 19.Nc6+=) 19...Re8-/+ 20.Bd3 (20.Re1 Qc5 21.Bf1 Qf2+=) 20...g6 (20...Qd6 21.Bb1-/+) 21.Qh3 Nh5 (21...Qd6 22.Ne5 Re5-/+ (22...Qe5?! 23.Ne4 Qh5 24.Nf6 Nf6 25.Qh5 Nh5 26.Bc4=)) 22.Ne5= Ne5 23.Be4 Nf6 (23...Nf4 24.Qg3 Qc4 25.d3 Ned3 26.Bb7+=) 24.Bb7 ½–½. Teichmann,Erik (2320) – Neverov,V (2570), 8th Dubai Open, Dubai UAE, 2006.

13.d4 dc4 14.dc5 Nc5 15.Nd2 =+.

13.d4 cd4 14.Qd4 e5 15.Qd2 e4 =.

13.d4 cd4 14.Nd4 dc4 15.Ne6 Bh2 16.Kh2 fe6 17.Qd6 =+.

13.d4 cd4 14.Nd4 Qc7 15.cd5=+ Bh2 16.Kh1 Nd5 17.Nd5 Bd5 (17...ed5? 18.f4 Bf4 19.ef4+-) 18.f4 Bg3 19.Nf5 ef5 20.Qd5 Qd8 (20...Re8!?=) 21.Qf5+= Qh4 (21...Nc5 22.Qg4 Qh4 23.Qh4 Bh4 24.Bd4+=) 22.Qh3 Nc5 23.Bd4 Ne4 24.Bb6 (24.Qh4 Bh4 25.Kg1 Bf6+=) 24...Nf2 (24...Re8 25.Qh4 Bh4 26.Kh2+=) 25.Rf2 Bf2 26.Qh4 Bh4 27.Kh2 Be7 28.Ba7 Rd8 29.Bf3 Bd6 30.Bd4 Bb8 31.b6 g6 32.g4 Re8?? 33.b7 g5 34.Be5 Be5= 35.fe5 Kf8 36.Kg3 Ke7 37.Bd5 f6 38.ef6 Kf6= 39.e4 Ke5 40.Kf3 Kd4 41.Ke2 Rf8 42.Be6 Rb8 43.Bd5 (43...Rf8 44.Kd2=). Junge – Steinmuller, corr, 1977.

13.cd5 Nd5 14.Nd5 Bd5 =.

10.Qb3 0-0 11.Be2 b6 12.0-0 Bb7 13.d3 Qc7 14.Nbd2 e5 15.cd5 Nd5 16.Nc4 Bf6 17.g3 Ra8 18.Bb2 Nb4 19.e4 Bc8 20.Bc3 Ra2 21.Nfd2 Ra8 22.Nf3 Nf8 23.Bb4 cb4 24.Qb4 Bg4 25.Qb2 Ne6 26.Rc1 Rc8 27.Kg2 Bf3 28.Bf3 Nc5 29.Ne3 Bg5 30.d4 ed4 31.Qd4 Rd8 32.Qc3 Qd7 33.Nf5 Bf6 34.Qc4 Qe8 35.Rc2 Nd3 36.Re2 g6 37.Nh6 Kg7 38.Ng4 Ne5 39.Ne5 Qe5 40.Rc2 Qd4 41.Be2 Qc4 42.Bc4 Bd4 43.Bd5 Bc5 44.Ra2 Rd7 45.f4 h5 46.h3 Kf6 47.Ra8 Ke7 48.Rh8 Bd4 49.Rh7 Kf8 50.g4 White intends f5 50...Kg8 51.Rh6 Kg7 52.g5 Rc7 53.Bc6 Ra7 54.f5 Ra2 55.Kf3 Ra3 56.Kg2 Be5 (56...Ra2!? 57.Kf1 gf5=) 57.fg6 Rg3 58.Kf2 Rg5 59.gf7 Kf7 60.Bd5 Ke7 61.Re6 Kd7 62.Rh6 Bd4?? (62...Ke7 63.Kf3 Bf6+/–) 63.Kf3+- Ke7 64.h4 Re5 65.Rh7 Kd6 66.Kf4 Kc5 67.Bc6 Kb4 (better is 67...Bc3!?+/–) 68.Rf7+- Rc5 69.Rf5 Rf5 70.Kf5 Be3 71.Kg6 Kc5 72.Kh5 Kd6 73.Kg6 Ke6 74.h5 Ke7 75.e5 Ke6 76.Bd7! Ke5 (76...Kd7 77.Kf7 Combination) ½–½. Lothal,Guenter (1870) – Costello,Colin (2070), Leipzig VfB op, 2003.

10.Be2 0-0 11.0-0 Nb6 12.cd5 ed5 13.d4 c4 14.Nc3 Bf5 15.Bb2 Qd6 16.Ne5 Qb4 17.Qc1 Ra8 18.h3 (18.Bd1!?-/+) 18...Na4 19.Na4 Ra4 (worse 19...Qa4 20.Qa1-/+) 20.g4 Bg6 21.f4 (21.Ng6 fg6 22.Bc3 Qb5-+) 21...Be4 (21...Qb5?! 22.f5 Ra2 23.fg6 hg6 24.Bc4 dc4 25.Nc4-/+ (25.Qc4?? Qb2 26.Qf7 Kh8 27.Qa2 Qa2 28.Ng6 Kh7 29.Ne7 Qa3 30.Rf6 Qe3 31.Rf2 Qe7-+)) 22.Bf3? (22.g5 Ne8 23.Bg4 Ra2-+ (23...Qb5? 24.Bd7 Qa6 25.Be8+-)) 22...Qb5 (better 22...Bf3!? 23.Nf3 Ne4 24.Ba1-+) 23.g5 Bf3?? (better 23...Nd7-+) 24.gf6= gf6 (better 24...Be2!? 25.fe7 Bf1 26.Qf1 f6-/+) 25.Nf3+/- Ra2 26.Rf2 f5 (26...Qb3!?+/-) 27.Rg2 Kh8? (27...Kf8+-) 28.Bc3 (better 28.Qb1 Ra6 29.Qf5+-) 28...Rg2+/- 29.Kg2 Qb3 30.Ne5 Kg7 (30...f6 31.Nf3 b5+=) 31.Nf3 (31.Kh1 Bd6+/-) 31...Ba3 (31...Kh8!?=) 32.Qd2 b5 33.Kh2 (33.Ba5!?+=) 33...b4= 34.Bb4 (better 34.Qg2!? Kf8 35.Qg5=) 34...Bb4 35.Qg2 Kf8 36.Ne5 (36.Ng5 Qe3 37.Nh7 Ke7 38.Qg5 Kd7 39.Qf5 Qe6 40.Qc2-/+) 36...Qc3?? (better 36...Qe3!? 37.Qd5 Qf4 38.Kg2 Qe4 39.Qe4 fe4 40.Nc4 Ke7-+) 37.Qg5 (37.Nd7!? Ke7 38.Nb6=) 37...Qd2-/+ (37...Qe3?? 38.Nd7 Ke8 39.Nf6 Ke7 40.Nd5 Ke8 41.Ne3+- (41.Nb4 Qd2 42.Kg3 Qb4=+)) 38.Kg3? (38.Kh1 Qc1 39.Kh2 Qc2 40.Kg1 Qd1 41.Kh2 Qe2 42.Kh1=) 38...Qe3-+ 39.Nf3 (39.Kh2 Qe2 40.Kg1 Qd1 41.Kh2 Qc2 42.Kg1-+) 39...Be1 40.Kh2 Qf2 (40...Qf3?! 41.Qd8 Kg7 42.Qg5 Kh8 43.Qd8 Kg7 44.Qg5 Kf8 45.Qd8 Kg7=) 41.Qg2 Qg2 (better 41...c3 42.Qf2 Bf2-+) 42.Kg2 c3?? (better 42...Bc3-+) 43.Ne1+- Ke7 44.Nc2 Kd6 (44...Kf6 45.Kf3 Kg6 46.Ke2+-) 45.Kf3 Kc6 46.Ke3 Kb5 47.Kd3 Ka4 (47...Kc6 48.Ne3 c2 49.Kc2 Kd6+-) 48.Kc3 f6 (48...Ka5 49.Ne3+-) 49.Nb4 Kb5 50.Nd5 Kc6 51.Nf6 Kd6 52.Nh7 Ke6 If Black now would get h4 in, he might survive 53.Ng5 Kf6 54.Kc4 (54.Kc4 Kg7 55.d5 Kf8 56.h4 Kg8 57.d6 Kf8 58.Kd5 Kg7 59.d7 Kh6 60.d8Q Kh5 61.Ne4 Kg4 62.Qg5 Kf3 63.Qg3 Ke2 64.Qf2 Kd3 65.Qd2) 1-0. BeepBeepImAJeep (2630) - Mayjin (2150), lichess.org, 2015.

10.Be2 0-0 11.0-0 dc4 12.Bc4 Nb6 13.Na3 (13.d3 Bd7=) 13...Nc4 14.Nc4 Bd7 (14...Qd3 15.Nfe5 Qf5 16.d3=) 15.Qb1 (15.Qb3 Nd5=) 15...Nd5 16.d4 Nb4 (16...f6 17.Rd1=) 17.Rd1+= Qc7 (17...cd4 18.Bd4 Qe8 19.Be5+-) 18.b6 (18.dc5 Bc5 19.Be5 Qc8+-) 18...Qc8 19.Nce5 (19.dc5 Bc5 20.Ng5 g6+-) 19...Rd8 (19...Ba4 20.Rc1+=) 20.Rc1 (20.dc5 Na6 21.Nf7+- (21.Rd7?! Rd7 22.Nd7 Qd7=)) 20...Na6+= 21.dc5 Nc5? (better 21...f6 22.Nd7 Qd7=) 22.Bd4 (22.Nf7 Rf8 23.N3g5 Bg5 24.Ng5 Rf5+-) 22...Ba4 (22...Be8 23.Bc5 Bc5+-) 23.Nd3?? (better 23.Bc5 Bc5 24.Nd3+-) 23...Nd3= 24.Rc8 Rc8 25.Bb2? (better 25.Qd3 Rc1 26.Qf1 Rf1 27.Kf1=+) 25...Nb2?? (better 25...Rc2 26.g3 Bc5-+ (26...Rb2?! 27.Qd3 Rb6 28.Nd4=)) 26.Qb2+- Rc2 (26...Bc6 27.Nd4+-) 27.Qa1 Bf6 28.Nd4 (28.Nd4 Bd4 29.ed4+-) 1–0. Giudice,U – Ammendola,G, Cava de Tirreni, 1972.

10.Be2 0-0 11.d3 =.

10.Be2 Qa5 11.Nc3 (11.Bc3 Qc7=) 11...Nb6 (11...dc4 12.Bc4 0-0 13.0-0=) 12.0-0 (12.cd5 ed5 13.0-0 Bf5=) 12...0-0 (12...Nc4 13.Bc4 dc4 14.Ne5=) 13.d3 Rd8 14.Qc2 (14.Qd2 Qa8 15.cd5 ed5=) 14...Bd7 (14...Bd6 15.Rd1=) 15.Bb2+= Qa8 (15...dc4 16.dc4 Qb4 17.Ra1+/–) 16.Ra1 Qb8 17.Na4 Na4 18.Qa4 Be8 (18...dc4 19.dc4 Ng4 20.Qa7+=) 19.Qa7 (19.Be5 Qc8+/–) 19...Qc8 20.Bc3 Bd6 21.Nd2 Bb8 22.Qa2 Qc7 23.g3 e5= 24.Bf3 d4 25.ed4 ed4 26.Bb2 Nd7 27.Be4 Ne5 28.Qa8 b6 29.Ra3 Bd7= 30.Bc1 Re8 31.Nf1 Qd6 32.Bf4 Kf8 33.Nd2 f5 34.Bd5 Qe7= 35.Be5 Be5 36.Qb7 Bf6 37.Ra8 Ra8= 38.Qa8 Qd8 39.Qb7 g5 40.Bc6+/– Be6 41.Qh7 g4 42.Qh6 Kf7 43.Qh7 Kf8 44.h3 Bg7 45.Qg6 Qe7 46.hg4 fg4 47.Ne4 Qf7 48.Qg5 Qc7 49.Bd5 Qd7? 50.Be6 Qe6 51.Qd8 Qe8 52.Qb6 Kg8 53.Qc5 Qf7 54.Qc8 Bf8 (54...Qf8 55.Qg4 Qa3+-) 1–0. Hirth,Ullrich – Miezis,Normunds (2360), Biel MTO op, 1992.

10.Be2 dc4 11.Bc4 Nb6 12.d3 =.

9.Qa4 0-0 10.Nf3 Nbd7 11.Be2 Nb6 12.Qc2 Nc4 13.Bc4 dc4 14.Qc4 b6 15.d4 Bb7 16.Nbd2 Qd5 (16...Qa8 17.0-0 Rc8 18.Qd3-/+) 17.dc5+= Qc4 18.Nc4 Bc5 19.Bd4? (19.0-0 Rc8+=) 19...Rc8 (better is 19...Bd4 20.ed4 Rc8-+) 20.Bb2?? (better is 20.Bf6 Bb4 21.Kd1 Rc4 22.Bd4-/+) 20...Bb4-+ 21.Nfd2 (21.Ncd2 Rc2 22.0-0 Bd2 23.Nd2 Rd2 24.Bf6 gf6 25.f3-+) 21...Rc4 22.Ke2 (22.Kd1 Bd2 23.Kd2 Ne4 24.Kd3 Rb4-+) 22...Rc2 23.Bc1 Ne4 24.Kd3 Nf2 (better is 24...Rc3 25.Ke2 Nc5 26.Nb1 Rc2 27.Bd2-+) 25.Kc2 Nh1 26.Nc4 Bc5 27.g3 Nf2 28.Bd2 (28.Ne5 Be4 29.Kd2 Bd6-+) 28...Ne4 29.Be1 Nd6 30.Nd6 Bd6 31.Kc3 Kf8 32.Kc4 (32.Kd3 Bg2-+) 32...Bg2 33.Kb3 (33.Bd2 Bf1 34.Kb3 Bb5-+) 33...Ke7 34.Bc3 Bf1 (34...e5 35.Bb4-+) 35.Ka4 (35.Bg7 e5-+) 35...e5 36.Ba5 ba5 0–1. Leon Manas,JF (1715) – De La Hoz Sanchez,Ruben (2000), Torneo de Ajedrez Dia Universa, 2009.

9.Nc3 0-0 10.Nf3 d4 11.Ne2 d3 (11...de3!? 12.de3 Nbd7=) 12.Nc3 (12.Nc1 Nbd7+=) 12...Re8 (12...Qd6 13.Qb1+=) 13.Ne5 (13.Qb1 Qd6+/-) 13...Nbd7 14.Nd3 Nb6 (14...e5 15.Be2+=) 15.Nb2 (15.Ne5 Nfd7 16.Nd7 Qd7+=) 15...e5 16.e4 (16.Qf3 Qc7 17.Bd3 Be6+=) 16...Be6 17.Qb3 (17.Be2 Qd6+=) 17...Nfd7 (17...Qd4!? 18.f3 Ra8=+) 18.Nd5 (18.Be2 Bg5+=) 18...Nd5 (18...Qa8 19.Qd1 Bd5 20.ed5+=) 19.ed5 (19.cd5 Bg4 20.Nc4 Bh4+/-) 19...Bf5 (19...Bd5 20.cd5 Qa5 21.Na4=) 20.Bd3 Bd3 (20...e4 21.Be2=) 21.Qd3+= Nb6 (21...Bd6 22.0-0+=) 22.0-0+/- Bf6 23.Nd1 e4 24.Qa3?? (better 24.Bf6 Qf6 25.Re1+/-) 24...Ba1=+ 25.Qa1 Nc4 26.Qd4?? (26.Nc3-/+) 26...Nb6 (better 26...cd4 27.Re1 Nd2-+) 27.Qc5= Re5 Increasing the pressure on the isolated pawn on d5 (27...Nd5!? 28.Nc3 Nf6=) 28.Ne3 (28.Nc3 Nd5 29.Qd4 Qg5+/-) 28...h6 (28...Nd5 29.Qd4 f6 30.Rc1+=) 29.Rc1+/- Nd5? (better 29...f5 30.Qd4 Qd6+/-) 30.Qc8+- Qc8 (30...Qf8 31.Qf8 Kf8 32.Rc5 Ne3 33.Re5+-) 31.Rc8 Kh7 32.Nc4 (better 32.Rc5+-) 32...Re7= 33.Rd8 (33.Nd6 Kg6=) 33...Nb4 (33...Nf4 34.Nd6=) 34.Nd6 Nc2 35.Nf5 (35.Kf1 Kg6=) 35...Re5 36.Ne3?? (better 36.Nd6=) 36...Ne3 (36...Rb5 37.h3 Ne1 38.Nc4-/+) 37.fe3 (37.de3 Rb5 38.h4 Kg6-/+) 37...Rb5-+ 38.Rd7 (better 38.Kf2-+) 38...b6 (38...Kg6 39.Kf2-+) 39.Rd4? (39.Rf7!? Re5 40.Kf2=+) 39...Rb2 (39...f5 40.g4 Kg6 41.Kf2-+) 40.Kf2 (better 40.Re4 Rd2 41.Rb4-/+) 40...Rd2?? (better 40...f5-/+) 41.Rd2+- b5 (41...f5 42.g4! fg4 43.Rd4+-) 42.Rb2 Kg6 43.Rb5 Kf6 1-0. afsharian – Sspartak, lichess.org, 2019.

9.d3 0-0 10.Nf3 dc4 11.dc4 Qd1 12.Kd1 Ne4 13.Ke1 Nd7 (13...Rd8 14.Nbd2 Nd2 15.Nd2=) 14.Bd3+= Bf6 15.Bf6 Ndf6 (15...Nef6 16.h3=) 16.Ne5 Nd6 17.Nc3 (17.Ke2 Rd8+=) 17...Nd7+= Black gets the initiative 18.Nd7 Bd7 19.Kd2 (19.Ne4 Ne4 20.Be4 Bc8+=) 19...Ra8 (19...Rd8 20.Kc2+=) 20.h4 (20.Rd1 e5 21.Ne4 Ne4 22.Be4 Bg4+/-) 20...e5= 21.f3 (better 21.Ne4!? Ra2 22.Kc3 Ra3 23.Kc2 Ne4 24.Be4+=) 21...Be6-/+ 22.Rb1 (22.Rd1 Nc4 23.Bc4 Bc4-/+) 22...Nc4 23.Bc4 Bc4 24.b6 Rd8 25.Ke1 Be6 (25...Kf8!?-/+) 26.Rd1 Threatening mate... how? 26...Rd1 27.Kd1 Kf8 28.e4? (better 28.Ne4!?=+) 28...Ke7 29.Kd2 (29.Nb5!?-+) 29...Kd6 30.Nb5 Kc6 31.Nc7 Kb6 32.Ne8 g6 33.Kc3 (33.g4 h6-+) 33...f5 34.Ng7 Bd7 35.ef5 Bf5 36.h5 (36.Ne8 Kc6-+) 36...Kc6 37.g4 Bd7 38.g5 (38.Kd3 b5-+) 38...b5 39.Kd3 (39.Kb3 Kd5-+) 39...Kd5 40.hg6 (40.Kd2 b4 41.Kc2 c4-+) 40…hg6 (40...hg6 41.Kd2 b4-+) 0-1. petrobbo (2040) - ABJunior (2245), ChessWorld.net, 2010.

9.Nf3 Qa5 10.Bc3 Qa2 11.Be2 Ne4 (11...dc4 12.Ne5=) 12.0-0 (12.cd5 0-0+=) 12...dc4 13.Bg7 Rg8 14.Nc3 Nc3 (14...Qb2 15.Be5 Nc3 16.dc3+=) 15.Bc3+- Qb3 16.Qa1 (16.Ne5 Qd1 17.Rd1 Nd7+-) 16...Qb5 17.Rb1 (17.Ne5!?+-) 17...Qa6 (17...Qc6 18.Ne1=) 18.Ne5 Qa1 19.Ra1 (19.Ba1 Na6 20.Nc4=) 19...Na6 (better 19...b5!?=+) 20.Bc4 (20.Nc4 Kd8+-) 20...Bf6 (20...f6 21.Nc6+=) 21.f4 Ke7 (21...h6 22.d4+=) 22.Ra5 (22.Nd3 Bc3 23.dc3 Kd6+-) 22...b6 (22...Be5 23.fe5 Rd8 24.Kf2+-) 23.Ra1 (better 23.Rb5 Nb8 24.Rb6+-) 23...Nb4?? (better 23...Be5!? 24.fe5 Nb8+-) 24.Bb4 (better 24.Ra7 Kd6 25.e4+-) 24...cb4 (24...Be5 25.Ra7 Bd7 26.Bc5 bc5 27.fe5+-) 25.Ra7 Kd6 26.Nf7 Kc5?? (26...Kc6+-) 27.Rc7 1–0. GuestDVWY – avataras, freechess.org, 2019.

9.Nf3 b6 10.d3 Nbd7 11.Nbd2 Qc7 (11...0-0 12.Be2=) 12.Be2 e5 (12...0-0 13.0-0=) 13.cd5 Nd5 14.0-0 (14.Nc4 Bd6=) 14...0-0 15.Ne4 (better 15.Nc4 Bd6 16.Nfd2=) 15...N7f6 (better 15...Bb7=) 16.Be5+- Qd7 (16...Qb7 17.Qc2+-) 17.Nf6 Nf6 (17...gf6 18.Ba1 Qb5 19.d4+-) 18.Qb3 (18.d4 Bb7+-) 18...Bb7 19.e4 (19.Ra1 Ng4 20.Bc3 Bf6+-) 19...h6 (19...Ng4 20.Bb2+-) 20.Bb2 (20.Ra1 Ng4+-) 20...Rd8 (20...Ra8 21.Ne5 Qe8 22.Nc4+-) 21.h3 (21.Ne5 Qe8+-) 21...Nh5?? (better 21...Ra8+-) 22.Ne5+- (22.Ne5 Qe6 23.Qe6 fe6 24.Bh5+-) 1–0. GuestRPKQ – GuestVPHT, freechess.org, 2016.

9.Nf3 b6 10.Be2 Bb7 11.0-0 0-0 12.d4 Nbd7 13.Nbd2 Qc7 14.Qb3 Ra8 15.Bb2 h6 16.Ra1 Ra1 17.Ba1 Qb8 18.Qa2 Qa8 (18...cd4 19.Bd4 e5 20.Bb2=) 19.Qa8 Ba8 20.dc5 bc5 (20...Bc5 21.Nd4=) 21.Ne5+= Ne5 22.Be5 Nd7 23.Bc7 Bb7 (better 23...Bf6!?+=) 24.b6+- Kf8 (24...g6!?+-) 25.cd5+- ed5 26.Bb5 Nf6 27.Nb3 Ne4 (27...Ne8 28.Bg3+-) 28.Na5 Bc8 (28...Ba8 29.b7 Bb7 30.Nb7+-) 29.Bc6 Nf6 (29...Bd6 30.Bd6 (30.Bd5?! Bc7 31.bc7 Nd6+-) 30...Nd6 31.Bd5+-) 30.b7 Bb7 31.Nb7 (worse 31.Bb7 c4+-) 31...c4 (31...d4 32.ed4 cd4 33.Bb6+-) 32.Be5 Ng4 (32...Kg8 33.Bd4+-) 33.Bd4 Bf6 34.Bc5 Kg8 (34...Be7 35.Bd5 c3 36.Bb3+-) 35.Bd5 c3 36.Bb3 Ne5 37.Kf1 Nd3 (37...Nd7 38.Bb4+-) 38.Ba3 Bh4 (38...g6 39.Ke2 Be7 40.Kd3 Ba3 41.Nd8+-) 39.g3 Bf6 40.Ke2 Ne5 (40...Be7 41.Kd3 Ba3 42.Nd8+-) 41.f4 Ng4 (41...Nc6 42.Nd6+-) 42.h3 Nh2 43.e4 Bd4 44.Nd6 h5 (44...c2 45.Nf7 Bc5 46.Ne5 (46.Bc5? c1Q 47.Ne5 Kh7-+) 46...Kh7 47.Bc1+- (47.Bc5? c1Q 48.Nd3 Qf1 49.Kd2 Qh3-+)) 45.Bf7 Kh7 46.e5 h4 (46...g6 47.Bb3 h4 48.e6+-) 47.Nf5 hg3 48.Nd4 g2 49.Kf2 c2 50.e6 Nf3 (50...c1Q 51.Bc1 g1Q 52.Kg1 Kh6 53.e7 g6 54.e8Q Nf3 55.Nf3 Kg7 56.Ng5 Kh6 57.Qh8) 51.Nf3 (51.Kf3?! g1Q 52.e7 Qf1 53.Ke4 Qe1 54.Kd3 Qe7 55.Be7 c1Q=) 51...c1Q (51...g1Q 52.Kg1 g6 53.e7 g5 54.e8Q c1Q 55.Bc1 g4 56.Bb2 gf3 57.Qh8) 52.Bc1 g1Q (52...g5 53.Ng5 Kg7 54.e7 g1Q 55.Kg1 Kf6 56.e8Q Kg7 57.Qe7 Kh6 58.Qf6) 53.Kg1 g5 (53...g6 54.e7 Kg7 55.e8Q Kf6 56.Bb2 Kf5 57.Qe5) 54.e7 g4 (54...Kh8 55.Bb2 Kh7 56.e8Q gf4 57.Qh8) 55.e8Q g3 (55...gf3 56.Qg8 Kh6 57.f5) 56.Qg8 (56.Qg8 Kh6 57.f5) 1–0. Pierre – Ares, internet, 2019.

9.Nf3 b6 10.Be2 Bb7 11.0-0 Nbd7 12.Na3 0-0 13.Nc2 Bd6 14.d4 dc4 15.dc5 Nc5 16.Bc4 Bd5 17.Bf6 gf6 18.Bd5 ed5 19.Ncd4 Ne6 20.g3 Be5 21.Nc6 Qd6 22.Nh4 f5 23.Nf5 Qc5 24.Nce7 Kh8 25.Qb1 Nc7 26.Rd1 Bf6 27.Rc1 Qb5 28.Qb5 Nb5 29.Nd5 Bd8 30.Rb1 Na3 31.Rb3 Nc4 32.Rb4 Ne5 33.Nb6 Re8 34.Nc4 Nd3 35.Ra4 Bf6 36.Ncd6 Rb8 37.Nf7 Kg8 38.N7h6 Kf8 39.Ra7 Be5 40.Rf7 Ke8 41.Rh7 Rb1 42.Kg2 Rb2 43.Ng4 Bc3 44.Nd6 Kd8 45.Ne4 Be1 46.Rf7 Ke8 47.Rf5 Bb4 48.h4 Ne1 49.Kh3 Rb1 50.h5 Nd3 51.h6 Be7 52.Ngf6 Kf7 53.h7 Kg7 54.Nd5 Bd8 55.Rf7 Kf7 56.Kg4 Kg7 57.f4 Kh7 58.Nef6 Kg6 59.f5 Kf7 60.Nh5 Ne5 61.Kf4 Nd3 62.Ke4 Nc5 63.Kf3 Rf1 64.Kg4 Nd3 65.Nhf4 Ne5 0–1. orangutandu – costelinache, internet, 2013.

9.Nf3 Bd7 10.Be2 dc4 11.Bc4 Ne4 12.Qc2 +=.

9.Nf3 Bd7 10.Be2 Qc7 11.0-0 Bd6 (11...0-0 12.Qc2+=) 12.Qc2 (12.Bf6 gf6 13.cd5 ed5+/–) 12...e5+= 13.h3 (13.cd5 Nd5 14.Ne5 Be5+=) 13...e4 14.Ne1 Be6? (better is 14...Bh2 15.Kh1 Be5 16.Be5 Qe5 17.cd5 Qd5+=) 15.Qb3?? (better is 15.Bf6 gf6 16.cd5+/–) 15...Be5 16.Be5 Qe5 17.cd5 Nd5 18.Bc4 Nd7 19.f4 ef3 20.Nf3 Qd6 21.Ng5 N7b6 22.Ne6 Qe6 (better is 22...fe6!? 23.Nc3 Qe5+=) 23.Nc3+/– Nc4 24.Qc4 Nc3 25.Qe6 (better is 25.Qc3!? 0-0 26.Qc5+/–) 25...fe6= 26.dc3 Ke7 27.Rf4 e5 28.Rf2 Ra8 29.Rc2 Ra3 30.Kf2 c4 31.Kf3 Rb3 32.Ke4 Ke6 33.Ra2= Rb5 34.Ra4 Rc5 35.Rb4 b5+= 36.g3 h5 37.Rb2+= Rd5 38.Rb4 g6 39.Rb1 Kd6 40.Rb4 Kc6-/+ 41.Rb1 Rd3 42.Rc1 Kc5 43.Rc2 b4 44.cb4 Kb4 45.Re2 Kc3 46.Ke5 Rd2 47.Re1 Kd3 48.e4 c3 49.Kf6 c2 50.Rc1 Ke4 51.Kg6 Kd3 52.Kh5 Rd1 53.Rc2 Kc2 54.g4 Kd3 55.g5 Ke4 56.g6 Kf5 57.g7 Rg1 58.Kh6 Kf6 59.h4 Rg7 60.h5 Rg5 61.Kh7 Rh5 62.Kg8 Rg5 63.Kf8 Rg7 64.Ke8 Rh7 65.Kd8 Ke6 66.Kc8 Kd6 67.Kb8 Kc6 68.Ka8 Kb6 69.Kb8 0–1. Otten,Thomas – Zoglowek,Sven (1605), SJNR–ch U16, 2005.

9.f4 Nbd7 10.Nf3 0-0 11.Be2 dc4=+ 12.Bc4 +=. Adam – Bach, corr, 1973.

9.f4 Nbd7 10.Nf3 dc4 11.Bc4 0-0 12.0-0 =.

10.Qb3 Qa5 11.Bc3 (11.Bf6 Bf6 12.cd5 ed5 13.Qd5 Qb6+=) 11...Qa8 (11...Qd8 12.d4=) 12.Bb2 (12.Bf6 Bf6 13.cd5 ed5 14.Qd5 Be6+=) 12...Nbd7= 13.Be2 b6 14.0-0 Bb7 15.d3 dc4 16.Qc4 Bd5 17.Qc2 Rd8 18.Nc3 Bb7 19.Rd1 Qb8 20.Bf1 (20.d4 cd4 21.Nd4 Qc7=) 20...Ne5 21.Ne5 Qe5 22.Ne4 Qg5?? (better 22...Qf5 23.Nf6 Bf6 24.Bf6 Qf6=) 23.Ng5+- 1-0. ClayPigeons (2155) - Optima_666 (2345), Rated Bullet game, lichess.org, 2019.

10.Qb3 Nbd7 1–0. Schuchardt,Wolfgang (1690) – Winkler,Karl (1750), Mecklenburg VP LL1, 2006.

10.Qc2 b6 11.Be2 Bb7 12.0-0 Nbd7 13.d3 Qc7 14.cd5 ed5 15.Nbd2 Bd6 16.h3 Ne5 (16...Re8 17.Rc1=) 17.Bb2 (17.Ne5 Be5 18.Nf3 Ba1 19.Ra1 Qd7=) 17...Nf3 18.Nf3 Qd7 (18...Qe7 19.Ra1=) 19.Qb3 (19.Bf6!? gf6 20.Qb2+=) 19...Qe6 (19...Qe7 20.Qc2=+) 20.Ra1= Ra8 (20...Re8!?=) 21.Ra8+= Ba8 22.Qa4 Qc8 23.Be5 (23.Bf6 gf6 24.Qa1 Qd8+=) 23...Ne8 (23...Be5 24.Ne5 Bb7 25.d4=) 24.Qf4 (24.d4 c4=) 24...Qd7 25.Qa4 Nc7 26.Bd6 Qd6= 27.d4 c4 28.Ne5 g6 29.Bf3+= f6 30.Nc4!+/– dc4 31.Ba8 c3 32.Bc6 Kg7? 33.Qb3 Ne6 34.Qc3 Ng5 35.h4 Nf7 36.Bf3 Nd8 37.Qc8 h5 38.g3 f5 39.Bc6 Nf7 40.Qb7 Kf6 41.Qb6 Nd8 42.Qc5 Qc7 43.d5 Nb7 44.Qd4 Ke7 45.b6 (45...Qd8 46.Qe5 Kf8 47.Qh8 Kf7 48.Qh7 Kf8 49.Qb7+-) 1–0. Fredek (2090) – Guest27860, Freundschaftspartie, 5m + 0s, 2005.

10.Qc2 Nbd7 11.Bd3 b6 12.Ng5 (12.cd5!? ed5 13.0-0+=) 12...h6-/+ 13.h4 Re8 (13...dc4!? 14.Bh7 Kh8-/+) 14.Bh7+= Kf8 15.Bg6 hg5 16.hg5 Bd6 17.gf6 Nf6 (17...fg6?? 18.Qg6 gf6 19.Rh7 dc4 20.Rf7) 18.Rh8 (18.Bh5!?=) 18...Ke7+= 19.Bf6 Kf6 20.Re8 Qe8 21.Bd3 dc4 (21...Bb7!?-/+) 22.Qc4= g5 (22...g6 23.Nc3=) 23.Qe4 Bd7 24.Qh7 Be5 25.Na3 Qf8 26.Nc4 Bc7 27.f4 Qg7 28.Ne5 Qh7 29.Nd7 (29.Bh7? Be5 30.fe5 Ke5-+) 29...Kg7 30.Bh7 Kh7 31.fg5 Kg6 32.Nf6 Kg5 33.Ne4 Kg4 34.Kf2 Be5 35.d3 f5 36.Nd2 Bg3 37.Ke2 Bc7 38.Kf2 f4 39.e4 ½–½. Leon Manas,JF (1735) – Gonzalez Garcia,Guillermo (2215), Torneo de Ajedrez de Otono La, 2009.

10.Qc2 Nbd7 11.Bd3 Nb6 12.Bf6+= Bf6 13.Bh7 Kh8 14.Bd3 dc4 15.Bc4 Nc4 16.Qc4 Be7 (16...b6 17.h4+=) 17.0-0 Qa5 18.Nc3 Bd7 (18...Qb4 19.Qe2+/-) 19.Ne5 Be8 20.f4 f6 (better 20...Qd8!? 21.Rd1 f6+/-) 21.Qe6+- fe5?! (21...Qd8 22.Nd5 Qd6 23.Qe7 Qe7 24.Ne7 fe5+-) 22.Qe7 Bb5 (22...Kg8+-) 23.Qf8 (23.Qf8 Kh7 24.Qc5 ef4 25.Qh5 Kg8 26.Qd5 Kh8 27.Nb5+-) 1-0. GuestRXMC – yusepe, freechess.org, 2020.

10.Be2 Qa5 11.Nc3 dc4 12.Bc4 Nbd7 (12...Rd8 13.0-0=) 13.0-0 Nb6 14.Qb3 (14.d3 Nc4 15.dc4 Rd8=) 14...Rd8 (better 14...Nc4 15.Qc4 Rd8=) 15.d4 (better 15.Be2=) 15...Qb4-/+ (15...Nc4?! 16.Qc4 cd4 17.Nd4=+) 16.Ne5 Nc4 17.Qc4 Qc4 (17...cd4?! 18.Qb4 Bb4 19.Na2=+) 18.Nc4 cd4 19.ed4 Bd7 (19...Rd4!? 20.Nb6 Bd7-/+) 20.Rb1 Be8 21.Na5 Rb8 (21...Rd7 22.Rc1=+) 22.f3 (22.b6 Bd7=) 22...Kf8 23.Kf2 Bd8 (23...Bd6 24.g3=+) 24.Nc4 (24.b6 Be7=) 24...Be7 25.Ke3 Ra8 26.Kd3 Nd5 27.Nd5 ed5 28.Ne3 (28.Ne5 f6 29.Bc3 fe5-+) 28...Ra5 Attacking the isolated pawn on b5 (28...Bd7 29.Bc3=+) 29.Nd5= Bb5 30.Ke3 Ra3 31.Kf2 (31.Bc3 Bc6 32.Ne7 Ke7=) 31...Ra2 32.Rb2 Rb2 33.Bb2 Bd6 34.Bc3 Bc4 (34...Bh2 35.Bb4 Ke8 36.g3+-) 35.Bb4= Bd5 (35...Bb4 36.Nb4 Ke7 37.Ke3=) 36.Bd6 Ke8 37.Ke3 Kd7 38.Bf8 g6 (38...g5 39.Bh6=) 39.Kf4 f6 40.h4 (40.Bg7 Ke7=) 40...Ke6 41.Bc5 b5 42.g4 Bc6 (42...h6 43.h5 g5 44.Ke3=) 43.Ke3 f5 44.Kf4 fg4 45.fg4 h5 46.gh5 gh5 47.Ke3 (47.Kg5 Bf3=) 47...Kf5 48.Kd3 Bd5 49.Kc3 Ke4 (49...Kg4 50.Kb4=) 50.Be7 (50.Kb4 Bc4=) 50...Bc4 51.Bf6 Kd5 (51...Kf5 52.Be5=) 52.Kb4 ½–½. Klinke,Werner – Wilbert,Siegfried, Ruhrgebiet VK2–chT, 1996.

10.Be2 Qa5 11.Nc3 Nbd7 12.0-0 Nb6 13.Qb3 Rd8 14.d4 dc4 15.Bc4 Nc4 16.Qc4=+ cd4 17.Nd4 (17.ed4 Bd7=+) 17...e5-/+ 18.Nf3 Be6 19.Qe2 (19.Qa4 Qa4 20.Na4 Bb3-/+) 19...Qc7 (19...Bb4!? 20.Qb2 Bc4 21.Rd1 Rd1 22.Nd1-/+) 20.Rd1-/+ Ra8 (20...e4 21.Rd8 Qd8 22.Nd4-/+) 21.Bb2 e4 22.Nd4 Bc4 (22...Bg4 23.f3 ef3 24.gf3-/+) 23.Qc2 Ng4 (23...Bd3 24.Qb3-/+) 24.g3=+ Bd3 25.Qb3 h5?? (25...Nf6 26.Nce2 Bd6 27.Nf4 Bf4 28.ef4=+) 26.Nf5?? (better 26.Nd5 Qd8 27.Nf5+-) 26...Bf8=+ 27.Nd5 Qc2 ½–½. Lorenz,Alexander (1815) – Buchegger,Karl (2075), Graz Austria, Steirische Landesliga, 2015.

10.Be2 b6 11.0-0 Bb7 12.d4 dc4 13.Bc4 Nbd7 14.Nbd2 Qc7 15.Be2 Ra8 16.Bb2 cd4 17.Nd4 e5 18.Nf5 Bf8 19.Bf3 Bf3 20.Nf3 (20.Qf3 Ra2 21.Rc1=) 20...Rd8 (better 20...Ra5!?-/+) 21.Ne5+= Ne5 22.Be5 Qe5 23.Qd8 Qf5 24.Qb6 h5 25.h3 Bc5 (25...Qe5!?+=) 26.Qc6 Ne4 27.b6 Nf2? (27...Qe5 28.b7 Ba7+-) 28.b7 Be3 (28...Nh3 29.gh3 Qe5 30.Qc8 Kh7 31.Qf5 Qf5 32.Rf5 Bd6 33.Rf7 h4+-) 29.Qc8 (29.Qc8 Qc8 30.bc8Q (30.bc8N?! Nh3 31.Kh2 Ng5=+; 30.bc8B?! Nh3 31.Kh2 Ng5=+) 30...Kh7 31.Qf5 Kh6 32.Kh2+-) 1-0. BeepBeepImAJeep - leomessi_23 (2620), lichess.org, 2018.

10.Be2 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Qc7 14.Bb2 Bd6 15.h3 Rd8 16.Qa1 Ra8 17.Qb1 Qd8 (17...cd4 18.Nd4 Nc5 19.cd5 Bd5 20.Nc4=+) 18.Rc1 Bb8 19.cd5 ed5 20.dc5 bc5 21.Nf1 Qe7 22.Ng3?? (22.Qd3=+) 22...Qd6?? (better 22...Bg3 23.Qc2 Bd6-+) 23.Nf5= Qe6 24.Ng5 Qe8 25.Qc2 h6 26.Nf3 Ne4? (26...Qe6 27.Ba1=) 27.Ra1?? (better 27.Bg7 h5 28.N3h4+-) 27...Ra1= 28.Ba1 f6 29.Bd3 Qe6 30.g4 Ng5 31.Ng5 hg5 32.Bf1 g6 33.Ng3 Kg7 (33...Bg3 34.Qg6 Kf8 35.Qh6 Ke7 36.Bf6 Nf6 37.Qg7 Qf7 38.Qf7 Kf7 39.fg3-+) 34.Ne2 Be5 35.Bc3? (35.Be5 fe5 36.Bg2 Qb6=) 35...Qd6?? Black prepares the advance d4 (better 35...d4 36.Bd2 Qd5-+) 36.Bg2= Qb6 37.Qb2 Bc3 38.Nc3 d4 39.Na4 Qa5 40.Bb7 Qe1?? (better 40...Qa4 41.ed4 cd4=) 41.Kg2+- Ne5 (41...d3 42.Qb3 d2 43.Nc3+-) 42.Be4 (better 42.Nc5!? de3 43.Ne6 Kf7+-) 42...d3 (42...de3 43.fe3 (43.Nc5?! e2 44.Ne6 Kf7 45.Ng5 Kg7 46.Ne6 Kf7 47.Ng5 Kg7 48.Ne6 Kf7 49.Ng5=) 43...Qe3 44.Nc3+-) 43.b6 d2 44.Nc3 Qc1 (44...d1R 45.Nd1 Qd1+-) 45.Nd1 (better 45.Qc2+-) 45...Qd1= 46.Qc2?? (better 46.b7 Qe1 47.Qe5 fe5 48.b8Q=) 46...Qc1-+ 47.b7 d1Q (better 47...Nd7 48.Bg6 d1Q 49.Qc1 Qc1-+) 48.Qd1 (48.Qc1 Qc1 49.b8Q Qc4 50.Qa7 Nf7+/-) 48...Qd1 49.b8Q Qd7 50.Qb7 (50.Qa8 Qc7=) 50...Qb7=+ 51.Bb7 c4 52.Be4 Kf7 (52...c3 53.Kf1 Nd7 54.Ke2=) 53.Bc2 (better 53.f4!? Nd3 54.Bd5 Kg7 55.Bc4+/-) 53...Ke6= 54.f4 Kd5?? (better 54...Nd3 55.Bd3 cd3=) 55.fe5+- Ke5 (55...f5 56.gf5 gf5 57.Bf5 Ke5 58.Bc2+-) 56.Kf3 (56.Bg6 c3+-) 56...c3 (56...f5 57.Ke2+-) 57.e4 (better 57.Bg6 Kd5+-) 57...f5 (57...Kd4+-) 58.Ke3 (better 58.ef5 gf5 59.gf5 Kf6+-) 58...f4 59.Kf3 (better 59.Kd3+-) 59...Kd4 60.e5! Ke5 61.Bd3 (61.Bg6?! Kf6 62.Bd3 Ke5+-) 61...Kd4 62.Bc2 Kc4?? (62...Ke5 63.Bg6 Kf6+-) 63.Bg6+- Kb4 64.Bd3 Ka3 (64...Kc5 65.h4! gh4 66.g5+-) 65.Ke4 (65.h4 gh4 66.Kf4+-) 65...Kb2 66.Kf5?? (better 66.h4 gh4 67.Kf4+-) 66...c2 (better 66...f3 67.Kg5 c2-+) 67.Bc2= f3?? (67...Kc2 68.Ke4 Combination) 68.Kg5 (better 68.Ba4 Kc3 69.Kg5+-) 68...f2 (68...Kc2 69.Kg6-+) 69.h4 (better 69.Bd3 Kc3 70.Bf1+-) 69...Kc2-+ 70.h5 f1Q 71.Kh4 (71.Kg6 Qd3 72.Kh6 Qd6 73.Kg5 Kd3-+) 71...Qe1 (71...Qf6 72.Kh3 Kd2 73.Kg2 Ke3 74.Kh3 Qf3 75.Kh4 Kf4 76.g5 Qg4) 72.Kg5-+ Qe3 (72...Qe3 73.Kf5 Qd3 74.Kg5 Kd2-+) 0-1. BeepBeepImAJeep (2560) - hedgehogik (2380), lichess.org, 2019.

10.Be2 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Qc7 14.Qb3 Bd6 15.h3 e5 (15...cd4 16.Nd4 Ra8 17.Rc1+=) 16.dc5 Nc5 17.Qc2 e4 18.Nd4 Rc8 19.Rc1 Qd7 20.Bb2 Bb8 21.Nf1 (better is 21.Bf1!?=) 21...dc4-/+ 22.Nc6 Nd3 (better is 22...Bc6 23.bc6 Qc6 24.Qc4 Rd8-/+) 23.Qc3?? (23.Bf6 Bc6 24.Bg4 Nc1 25.Bd7 Bd7 26.Bg7 Kg7 27.Qc1-/+) 23...Bc6 (23...Nc1 24.Qc1 Bc6 25.Bf6 gf6 26.bc6 Rc6 27.f3-+) 24.bc6 Qc6 25.Bd3 ed3 26.Nd2 b5 27.Nf3 Bd6 28.Qd4 (28.Qa5 Ne4 29.Nd4 Qc5 30.Qb5 d2-+) 28...b4 (28...Qd5!? 29.Qa7 Ra8 30.Qb6-+) 29.Qh4 (29.Rc4 Bh2!! 30.Kh2 Qc4 31.Qe5-+) 29…c3 (29...c3 30.Bc3 bc3-+) 0–1. Vigneron,Jean (1970) – Milliet,Sophie (2295), Vandoeuvre op, 2004.

10.Be2 dc4 11.0-0 Nbd7 12.Bc4 Nb6 13.Be2 Bd7 14.Ne5 Nbd5 15.Nc3 Nc7 Attacks the isolani on b5 (15...Qc7 16.Nd5 Nd5 17.Nd7 Qd7 18.Qa4=) 16.Qb3 Nfd5 (16...Ncd5 17.Bf3+=) 17.b6+- Na8 18.Nd5 ed5 19.Qd5 Nb6 (19...Bc8!? 20.Qe4 Nb6+-) 20.Qb7+- Be6?? (better 20...Bc8 21.Qa7 Qd6+-) 21.Nc6 (21.Nc6 Qd6 A) 22.Qe7?! Qc6 23.Rc1 Qd7 24.Qd7 Nd7+- (24...Bd7? 25.Rc5 Be6 26.Bd4+-); B) 22.Qb6 Bd8 23.Qb5 Bd5 24.Nd8 Rd8+-; C) 22.Ne7 Kh8 23.Qc6 Qc6 24.Nc6+-) 1–0. GuestHTPN – DrBelzmerde, freechess.org, 2019.

10.Be2 dc4 11.Bc4 Nbd7 12.0-0 Nb6 13.Be2 Ne4 14.Qc2+= Qd5 Black plans c4 (14...f5 15.Nc3 Nd6 16.Na4 Na4 17.Qa4+=) 15.Nc3 (15.Be5 f6 16.Bc7 Na8+-) 15...Nc3 16.Bc3 (worse 16.Qc3 f6=; worse 16.dc3 c4=+) 16...c4 (16...Qd8 17.e4+-) 17.Rb1 f5 (17...Bc5 18.Ba5+-) 18.Ba5 Bc5 (18...Qd6 19.Bb6 Qb6 20.Bc4+-) 19.Bb6+- Bb6 20.Qc4 (20.Bc4 Qd6+-) 20...Qd6 (20...Bd7!?+-) 21.d4+- Bd7 (21...f4 22.Ne5+-) 22.Ne5 Rc8 (22...f4 23.Bg4 Rc8 24.Qb3+-) 23.Qb3 Kf8 (23...Be8 24.Bf3 Qe7 25.Ra1+-) 24.h3 (24.Bf3 Rb8+-) 24...Ke7 (24...Qe7 25.Bc4 Re8 26.Ra1+-) 25.Bf3 Qb8 (25...Qc7 26.Qa3 Qd6 27.Qd6 Kd6 28.Bb7+-) 26.Qb4 (26.Nd7 Kd7 27.Rd1 Rf8+-) 26...Qd6 27.Qd6 Kd6 28.Bb7 Rb8 (28...Rc2 29.g3+-) 29.Nd7 (29.Nc4 Ke7 30.Bc6 Bc6 31.bc6 Bc7 32.Rb8 Bb8+-) 29...Kd7 30.Bc6 Kd6 (30...Kc7 31.Rc1+-) 31.Kf1 (31.f4 Rc8+-) 31...Rc8 32.Ke2 Rc7 33.Ra1 (33.g4 Ra7+-) 33...Ra7 34.Ra7 Ba7 35.Kd3 (35.f4 Bb6+-) 35...Bb6 (35...e5 36.g3+-) 36.f3 (36.f4 h6+-) 36...Ba7 (36...e5 37.de5 Ke5 38.f4 Kd6 39.g3+-) 37.e4 (37.f4 Bb6+-) 37...e5 (37...fe4 38.Ke4 Bb6 39.h4+-) 38.de5+- Ke5 39.ef5 Kf5 (39...h6!? 40.Be4+-) 40.Be4 Kf4 (40...Ke5 41.Bh7 g5 42.Be4+-) 41.Bh7 g5 (41...Bf2 42.Kc4 Ke5 43.f4 Kf4 44.Kd5+-) 42.Kc4 Ke5 (42...Kg3 43.Be4+-) 43.g3 Bf2 44.h4! (44.h4 gh4 45.gh4 Bh4 46.Kc5+-) 1–0. Lipok,Erik – Heiduczek,Josef, NB op, 1992.

10.Be2 Qc7 11.0-0 Nbd7 12.d4 e5?? 13.de5+- (13.Ne5?! cd4 14.Nd7 Nd7 15.cd5 de3 16.fe3 Bd6+/-) 13...Ng4 14.cd5 (14.Qd5!? Nb6 15.Qe4 Rd8+-) 14...Nde5+/- 15.Ne5 Ne5 16.Nd2 Bd6 17.h3 Bf5? (17...Qe7 18.Ne4+/-) 18.Nc4 (better 18.e4 Bd7 19.f4+-) 18...Nc4+/- 19.Bc4 Re8 20.Re1 Be5 (20...Qa5+/-) 21.f3 (better 21.Be5!? Qe5 22.Qa1+/-) 21...Ba1= 22.Qa1 Qg3 23.e4 Bh3 24.Re2 Bd7 25.Qe1 (25.Qa7 Qe5 26.Qb7 Qd4 27.Kh2 Qe5 28.g3 Qh5 29.Kg1 Bh3+/-) 25...Qg6 26.Ra2 h5 (26...Qf6 27.Qe3+=) 27.Ra7 h4 (27...Bh3! 28.Qe2 Bc8+=) 28.Qh4+- Qb6 29.Ra1 Bb5?? (better 29...Qd6+/-) 30.Rb1+- Qa5 31.Bb5 Rf8 32.Qe1 Qa3 33.Qc1 Qc1 34.Rc1 1-0. BeepBeepImAJeep (2365) - RayCarrot_Youtube (2170), lichess.org, 2015.

11.0-0 b6 12.d3 Bb7 13.Bb2 Qc7 14.Nbd2 e5 15.cd5 Nd5 16.Qb3 Ra8 17.Ra1 Ra1 18.Ba1 Kf8 19.g3 Bd6? (19...Nb4 20.Nc4 e4 21.de4 Be4 22.Nfd2=) 20.Nc4 (better is 20.e4 and the scales tip in favour of White 20...Nb4 21.Ng5+/–) 20...f6= Prevents intrusion on g5 21.Nfd2 Ne7 (21...Be7!?=) 22.e4 g6 Covers h5 23.Ne3 Kg7 Black king safety dropped 24.Bg4 Nf8 25.Ndc4 h5 26.Nd6 Qd6 White has the pair of bishops 27.Nc4 The knight feels good on c4 27...Qd8 28.Be2 Ng8 (28...Bc8 29.Ne5 Be6 30.Nc4+/–) 29.f4 (29.Qa3!? should be investigated more closely 29...Qc7 30.Bc3+=) 29...ef4= 30.gf4 Ne6 31.f5 White threatens to win material: f5xe6 31...Nf4 The backward pawn on d3 becomes a target. Black threatens to win material: Nf4 32.Bf1 gf5 33.e5 (better is 33.Qa3!?= might be a viable alternative) 33...Qd5-/+ 34.ef6 Kf8 35.Qb2?? Qh1-/+ 36.Kf2 Bg2 37.Ne3 Bf1 38.Kg3 Ne2 39.Kf2 Nf4 Twofold repetition 40.Kg3 Nd3 41.Qd2 f4 42.Kh4 Qg1 (42...Qg1 43.Qa2 Qe3 (43...fe3?! 44.Qa8 Kf7 45.Qa2 Ke8 46.Qa8 Kd7 47.Qd5 Kc8 48.Qe6 Kd8 49.Qb6 Kc8 50.Qc6 Kd8 51.Qd6 Ke8 52.Qe6 Kf8 53.Qc8 Kf7 54.Qb7 Ke6 55.Qe4 Kf7 56.Qd5 Kf8 57.Qa8 Kf7 58.Qa2 Kf8 59.Qa8 Kf7 60.Qa2 Ke8 61.Qa8 Kd7 62.Qc6 Kd8 63.Qd5 Ke8 64.f7 Kf8 65.fg8Q Qg8 66.Qa8 Kf7 67.Qd5 Kf8 68.Qd8 Kf7 69.Qf6 Ke8 70.Qc6 Kf7 71.Qd5 Kf8=) 44.Qa8 Kf7 45.Qb7 Ne7 46.Qe7 Qe7 47.fe7 f3-+) 0–1. Melich,Jindrich (2150) – Wurm,Christoph (2155), Imperia op, 2000.

11.0-0 Nb6 12.d3 Qc7 13.Nbd2 Rd8 14.Qb3 dc4 15.dc4 Bd6 (15...Nbd7 16.Rd1=) 16.Bf6+= gf6 17.Ne4 Be7 18.Qb2 e5 19.Ng3 Be6 20.Qc2 Qd7 21.Nh4 Qd2 22.Qe4 f5? (better 22...Bf8!?+/-) 23.Nhf5+- (23.Qb7 Bh4 24.Qb6 f4 25.ef4 ef4 26.Qc5 fg3 27.hg3 Bf6=+) 23...Bf5 24.Qf5 (24.Nf5?! Qe2 25.Ne7 Kf8+/-) 24...Na4?? (24...Qd6+-) 25.Bf3 (25.Bh5 Rf8 26.Rd1 Qc3+-) 25...Nc3 (25...Qd6 26.Bb7 Qf6 27.Bd5+-) 26.Ne4 (better 26.Bh5!? Qd6 27.Qf7 Kh8+-) 26...Qd3 27.Qg4 (27.Qe5!? Ne4 28.Be4 Qd6+-) 27...Kf8 28.Nc3 Qc3 29.Bb7 Qd3 30.Bd5 Rd5 (30...Qg6 31.Qf3+-) 31.cd5 Qb5 32.Qf5 Bd6 33.Qh7 c4 34.Ra1 (better 34.e4!? Qb2+-) 34...Qd5 35.Qh8 Ke7 36.Ra7 Ke6 37.Qh6 Kf5 38.Qh5 Kf6 39.g4 (better 39.e4 Qe4 40.Qf7 Kg5 41.Qg8 Qg6 42.Rg7 Qg7 43.Qg7 Kf5 44.Qd7 Ke4 45.Qd6+-) 39...c3 (39...Qd1 40.Kg2 Qd5 41.f3 Kg7 42.Qg5 Kh7+-) 40.Qh6 1-0. BeepBeepImAJeep - RJRR_SBC97 (2155), lichess.org, 2017.

11.0-0 Nb6 12.d3 Qd6 13.Nbd2 Nfd7 14.d4 dc4 (14...cd4 15.Bd4 dc4 16.Nc4 (worse 16.Bc4 Nc4 17.Nc4 Qb4=+) 16...Nc4 17.Bc4+=) 15.Nc4+= Nc4 16.Bc4 Nb6 17.Be2 Rd8 18.dc5 Qc5 (18...Qd1 19.Rd1 Rd1 20.Bd1 Bc5 21.Bc2+=) 19.Qb1 Nd5 20.Rc1 Qa7 21.Bd4 b6 22.Ne5 Bb7 23.Bf3 Bd6 24.Nc6 (24.Nf7 Kf7 25.Qh7 Ke8+/-) 24...Bc6+= 25.bc6 Bc7 (25...e5 26.Bb2 Nf6 27.Rd1+=) 26.Qb2 f6 27.g3 Qb8 28.e4 Ne7 29.Bf6 (29.Bg4 e5 30.Be3 Kh8+/-) 29...gf6+= 30.Qf6 Ng6 31.Qe6 (31.Bg4!? Nf8 32.Bh5+/-) 31...Kg7+= 32.h4 (better 32.Rd1!?+=) 32...Bg3-/+ 33.h5 Bh2 (better 33...Bf2 34.Kf1 Qf4 35.hg6 Qf3 (35...Qc1 36.Kf2 Qc5 37.Kf1 hg6 38.e5 Qc1 39.Kf2 Qd2 40.Kf1-+) 36.Qf7 Qf7 37.gf7 Bc5-+) 34.Kh1?? (better 34.Kf1 Re8 35.Qg4+=) 34...Qf4-+ 35.Rc3 (35.hg6 Qf3 (35...Qc1 36.Kh2 Qf4 37.Kg2+/-) 36.Kh2 Qf2 37.Kh1 Qf3 38.Kg1 Qe3 39.Kh1 Qc1 40.Kg2 Qg5 41.Kh1 Rd1 42.Kh2 Qf4 43.Kh3 Rh1 44.Kg2 Rh2 45.Kg1 Qf2) 35...Qh4 36.Qg4 (36.hg6?? Bg3 37.Qh3 Qh3 38.Kg1 Qh2 39.Kf1 Qf2) 36...Be5 37.Kg2? (37.Qh4 Nh4 38.c7 Rc8-+) 37...Qg4 (better 37...Qh2 38.Kf1 Bc3 39.hg6 hg6-+) 38.Bg4 Nf4 (38...Bc3 39.hg6 Be5 40.gh7 Kh7 41.Bf5 Kg7 42.Kf3-+) 39.Kf3 Bc3 40.Kf4 Rf8 41.Bf5 Kf6 0-1. Mely (2240) - njonginjo (2190), ChessWorld.net, 2017.

11.0-0 Nb6 12.cd5 ed5 13.d4 Be6 Black plans c4 14.Nc3 (14.dc5!? Bc5 15.Qc2+=) 14...c4=+ 15.Bb2 Nbd7 (15...Bf5 16.Ne5=+) 16.Qc2= b6 (16...Qb6 17.Ra1=) 17.Ra1 Qc7 18.h3 g6 19.Ba3 Bf5 20.Qc1 Ba3 21.Qa3 Re8 22.Qa7 Qd6 23.Ra6 (23.Qb7 Be6 24.Ra4 Kg7=) 23...Kg7 24.Na4 b6 becomes the focus of attention 24...Qb4 25.Nb6 Nb6 (better 25...Qb5 26.Nd7 Nd7=+) 26.Qb6+/- c3?? (better 26...Ne4 27.Qc6 Rd8+=) 27.Qf6+- Kg8 28.Ra7 Rf8 (28...Qf8 29.Ne5 Re6 30.Qf7 Qf7 31.Nf7+-) 29.Rc7 (better 29.Ng5 Bd7 30.Rd7 Qb1 31.Bf1+-) 29...c2 (29...Qb1 30.Kh2 c2 31.Ne5+-) 30.Kh2 Qb2 (30...Qb1 31.Ne5 c1Q 32.Rf7 Qh1 33.Kg3 Qh3 34.gh3 Qg1 35.Kf3 Be4 36.Kf4 Qf2 37.Bf3 Qh2 38.Kg5 Qg3 39.Bg4 Qe3 40.Qf4 h6 41.Kh6 Qf4 42.Rf4 Rf4+-) 31.b6 (better 31.Ne5 Be6 32.Nc6+-) 31...c1Q 32.Rc1 Qc1 33.b7?? (33.Ne5 Be6+-) 33...Qb2? (better 33...Qc7 34.Ne5 Qb7=) 34.Ba6+- Qb4 (34...Qf2? 35.Qb6 Qe3 36.b8Q Rb8 37.Qb8 Kg7 38.Bb7+-) 35.Ne5 Qa5?? (better 35...Be6+-) 36.Nc6 (better 36.b8Q!? Rb8 37.Qf7 Kh8+-) 36...Qc7 37.f4 Be4 (37...Re8 38.b8R Rb8 39.Ne7 Qe7 40.Qe7 Rb3+-) 38.Ne7 Qe7 39.Qe7 Kg7 40.Qc7 (40.Bb5 Bg2 41.Be8 Bf3 42.b8Q Kh6 43.Qbe5 Re8 44.Q7g5) 40...Kh6 41.b8Q Rb8 42.Qb8 (42.Qb8 Kg7 43.Qe5 Kg8 44.Bb7+-) 1-0. BeepBeepImAJeep (2685) - worldsong (2370), lichess.org, 2015.

11.0-0 Nb6 12.cd5 Nbd5 13.d4 Qa5 14.Nbd2 Rd8 (14...cd4 15.Bd4 Nc3 16.Bc3 Qc3=) 15.Nc4 (15.Nb3 Qa3 A) worse 16.dc5 Nc3 (16...Bc5? 17.Bf6 gf6 18.e4+-) 17.Bc3 Rd1 18.Bd1 Ne4-/+; B) 16.Qd3+=) 15...Qb5=+ 16.Nd6 (better 16.Ng5 Rf8 17.Ne5=+) 16...Qc6 (16...Qb4 17.Nc8 Rc8 18.dc5 Rc5 19.Bd4=+) 17.dc5?? (better 17.Nf7 Rf8 18.N7e5+=) 17...Qc5 (17...Ne3 18.fe3 Qc5 19.Nc8 Qe3 20.Kh1 Rd1 21.Ne7 Kf8 22.Bd1 Ke7 23.Bd4-/+) 18.Nc8 Qc8 (18...Rc8 19.Bd4 Qa5 20.Bd3=+) 19.Qb3 Ne4 20.Bd4 Bf6 21.Qb2 Bd4 22.Nd4 Nec3 23.Bf3 Rd7 (23...e5 24.Bd5 Rd5 25.Nf5 Qf5 26.Qc3-/+) 24.g3 g6 25.Kg2 (25.Rc1 Rc7 26.Ra1 Qd7=+) 25...Qc4 (25...e5 26.Bd5 Rd5 27.Rc1-/+) 26.Rc1=+ Rc7 27.Ne2 b5 (27...Qb5 28.Qb5 Nb5 29.Rb1=+) 28.e4 (28.Bd5 Qd5 29.e4 Qe4 30.f3 A) 30...Ne2?? 31.Rc7 (31.fe4?! Nc1 32.Qb5 Rc2 33.Kh3 Ne2+=) 31...Qa8 32.Qe2+-; B) 30...Qe2 31.Qe2 Ne2 32.Rc7 Nd4=) 28...Na4 (28...Qa2 29.Qa2 Na2 30.ed5 Nc1 31.d6-/+) 29.Qd2=+ Ndc3 30.e5 Rc8 (30...Kg7=+) 31.h4?? (better 31.Nc3 Nc3 32.Bb7+/-) 31...b4-/+ 32.h5 Qc7 33.Qg5 1-0. Timmermans,Mark (2385) - Gunnarsson,Arn (2420), Titled Tuesday, 2021.

11.0-0 dc4 12.Bc4 b6 13.d4 Bb7 14.Nbd2 cd4 15.Nd4 Nc5 16.Be2 (16.Nc6 Qd7 17.Ne7 Qe7=) 16...Re8 (16...Qc7 17.Bf3=) 17.Bf3 Bf3 18.N2f3 (worse 18.Qf3 e5 19.N4b3 Nb3 20.Nb3 Qd3-/+) 18...Nfe4 19.Nc6 Qc7 20.Be5 Qb7 (20...Bd6 21.Bd6 Qd6 22.Qd4=) 21.Qa1 f6 22.Bd4 e5 23.Bb2 (23.Qa2 Kh8 24.Bc5 Bc5+= (worse 24...bc5 25.Qd5 Nd6 26.Ne7 Qe7 27.Qc5+/-)) 23...Bf8 24.Qa2 (24.Ba3 Ra8 25.Qc1 Qf7 26.Bc5 Bc5=) 24...Kh8 (24...Qf7 25.Qf7 Kf7 26.Re1-/+) 25.Rd1 (25.Ba1 Qd7=) 25...Qc8 (25...Nd6 26.Bc1=+) 26.h3 (26.Qc4 Qe6 27.Qf1 Qa2=+) 26...Qf5 (26...Nd6 27.Nd2-/+) 27.Qf7 (better 27.Nd8 Ne6 28.Ne6 Qe6 29.Qe6 Re6 30.Rd8+=) 27...Ra8?? (better 27...Qe6 28.Qe6 Ne6=+) 28.Be5! Qg6 (28...fe5 29.Qc7 Double attack (29.Qf5 Pinning; 29.Qf5 Deflection; 29.Qc7 Decoy)) 29.Qg6 hg6 30.Bc7 Ra2 (30...Nc3!? 31.Rd8 Ra1 32.Kh2 Ne6+/-) 31.Bb6+- Rf2? (31...Kg8+-) 32.Rd8 Kg8 (32...Ne6 33.Re8 Rb2+-) 33.Bc5 (33.Bc5 Rg2 34.Kg2 Nc5 35.b6+-) 1-0. BeepBeepImAJeep (2195) - veverica (2190), lichess.org, 2015.

11.0-0 dc4 12.Bc4 Nb6 13.Be2 Nfd5 14.Na3 (14.Nc3 f6=) 14...f6 15.Nc4 (15.Qb3 Bd7=) 15...Bd7 (15...e5 16.Qb3 Be6 17.Nb6 Qb6 18.Bc4=) 16.Qb1 (16.Qb3 Qc7=) 16...Nc4 (16...Nb4 17.Qe4=) 17.Bc4= Qb6 (17...Bd6 18.d4=) 18.Bd3 (18.Qb3 Ra8=) 18...h6 (18...Kh8 19.Bh7 Bb5 20.Bd3 Bd3 21.Qd3=) 19.Qb3 (19.Bc4 Ra8 20.Qb3 Kf8=) 19...Nb4 (19...Ra8 20.Bc4=) 20.Bc4 Re8 (20...Kf7 21.Qa4+=) 21.Qa4 (21.d4 Kf7 22.dc5 Qc5+/–) 21...Na6 (21...Nd5 22.d4+=) 22.Rb1 (22.Nh4 Ra8 23.Rb1 Nc7=) 22...Nc7 23.Bc3 Ra8 (23...Nd5 24.Ra1=) 24.Qb3 Kh7 (24...Be8 25.Nh4+=) 25.h3 (25.d4 Be8+=) 25...Qd6 (25...Be8 26.d4=) 26.d4+= cd4?? (26...Nd5 27.dc5 Qc5 28.Bd4+/–) 27.Nd4 (better is 27.Bb4 Qb4 28.Qd3 Kh8 29.Rb4 Bb4 30.Qd4+-) 27...f5? (27...Nd5 28.Bb2+=) 28.Nc2?? (better is 28.Nf5 ef5 29.Rd1+-) 28...e5 (28...Bd8 29.e4 fe4 30.Ne3+=) 29.Bb4 (29.Ne1 Be6 30.Be6 Qe6 31.Qe6 Ne6 32.Be5 Kg6+=) 29...Qf6 30.Rd1 Rd8 31.Na3 Bb4 32.Qb4 Be6 33.Be6?? Rd1-+ 34.Kh2 Qe6 35.Nc4 e4 36.Qc5 Ne8 37.b6 Rc1 38.Qb5 Rc4 39.Qa5 Qd6 40.g3 Qc5 41.Qa8 Rc2 (41...Rc2 42.Kg1 Qc3 43.Qa6 ba6 44.g4 Qe1 45.Kg2 Qf2 46.Kh1 Qh2#) 0–1. Frosinos,Ioannis – Zvan,Ziga (2095), Chania op 8th, 1998.

11.0-0 Qc7 12.d3 b6 13.Nbd2 Bb7 14.Qc2 Ra8 15.Bb2 Bd6 16.g3 Qb8 17.Ra1 Ra1 18.Ba1 Qa8 19.Bb2 Qa2 20.Qb3 Qb3 21.Nb3 e5 22.Nbd2 e4 23.de4 de4 24.Ne1 Ne5 25.f4 ef3 26.Nef3 Ned7 27.Ng5 Kf8 28.Bf3 Bf3 29.Ngf3 Ng4 30.Nf1 h5 31.h3 Ngf6 32.Bf6 Nf6 33.N3d2 Ke7 34.Kf2 Ke6 35.Kf3 Nd7 36.Ke2 Ne5 37.e4 h4 (37...Be7 38.Nh2=) 38.gh4+= Be7 39.h5 Bg5 40.Ne3 Be3 41.Ke3 Kf6 42.Kf4 Nd3 43.Ke3 Ne5 44.Kf4 ½–½. Zeven,Frank (1895) – Partenheimer,Axel (2155), Leiden NED, 7th LCT Open, 2013.

11.0-0 Qc7 12.d4 Re8 13.cd5 ed5 14.Nc3 (14.dc5!? Nc5 15.Be5+=) 14...c4= 15.Nd2 (15.Qc2 Bd6=) 15...Bf8 (15...Nb6 16.Qc2=+) 16.Bf3 Nb6 17.Qc2 g6 (17...Bg4!?=+) 18.e4= de4 19.Nde4 Ne4 20.Ne4 Bg7 21.d5 (21.Nc5 Bf8=) 21...Bf5 (21...Nd5 22.Bg7 Kg7-/+) 22.Bg7= Kg7 (22...Be4 23.Be4 Kg7 24.Bf3=) 23.Qc3 (better 23.d6 Qd8 24.Qc3 f6 25.Qd4+=) 23...Kf8?? (better 23...Qe5 24.Qe5 Re5=) 24.Qh8 (better 24.d6 Qd6 25.Nd6+-) 24...Ke7 25.d6 (better 25.Qf6!? Kd7 26.d6 Qd8 27.Nc5 Kc8 28.d7 Qd7 29.Nd7 Nd7 30.Qf7 Kd8+-) 25...Qd6 26.Qe8!! (26.Nd6?! Rh8 27.Nf5 gf5 28.Bb7 Rd8=) 26...Ke8 27.Nd6 Kf8 (27...Kd7 28.Nf5 gf5 29.Rd1 Kc7 30.Be2+-) 28.Nf5 gf5 29.Bb7 1-0. BeepBeepImAJeep (2570) - elAndypo (2015), lichess.org, 2018.

11.d3 Qa5 12.Nbd2 dc4 (12...Rd8 13.0-0=) 13.dc4 Ne4 (13...Qc7 14.0-0=) 14.0-0 Nd2 (14...Nc3 15.Bc3 Qc3 16.Ne4=) 15.Nd2+= Bf6 (15...e5 16.Qc2+=) 16.Nb3 (16.Ne4 Be7 17.Bd3+=) 16...Qa4 (16...Qb6!?+=) 17.Bf6+- Nf6 (17...gf6 18.Qd3+-) 18.Nc5 Qb4 (18...Qa2 19.Bd3+-) 19.Qd4 (19.Qd6 Qb2 20.Bd3 e5+-) 19...e5 (19...Re8+-) 20.Qe5 Re8 (20...b6 21.Ne4 Ne4 22.Qe4+-) 21.Qd4 (21.Qc7!? Qc3+-) 21...Qa5 22.Ra1 (22.Rd1 Qc7+-) 22...Qc7 23.Nb3 (23.Rd1 Bg4 24.Bg4 Ng4+-) 23...Rd8 (23...b6 24.c5+-) 24.Qc5 Qd7 (24...Qb8 25.b6+-) 25.Nd4 Ne4 26.Qb4 (26.Qe5 Re8 27.Qh5 Qe7+-) 26...b6 27.Bf3 Nc5 28.g3 (28.Nc6 Re8+-) 28...g6 (28...Qd6 29.Ra7+-) 29.Nc6 (better 29.Qc3+-) 29...Nd3? (29...Bb7+-) 30.Qc3 Bb7 (30...Nf2 31.Kf2 Re8 32.Ra7+-) 31.Ra7 (better 31.Nd8 Bf3 32.Nc6 Bc6 33.bc6 Qc6 34.Qd3 Qb7+-) 31...Qf5 (31...Re8+-) 32.Ne7 (32.Ne7 Kf8 33.Nf5 (33.Bb7?? Qf2 34.Kh1 Qf1) 33...gf5 34.Qh8 Ke7 35.Rb7 Rd7 36.Rb8 Rd8 37.Qd8 Ke6 38.Rb6 Ke5 39.Qd6; 32.Nd8?? Qf3 33.Qh8 Kh8 34.Nf7 Kg7 35.Rb7 Qf2 36.Kh1 Qf1) 1–0. GuestYYXX – playerpal, freechess.org, 2016.

11.d4 Qa5 12.Bc3 Qa2 13.Nbd2 b6 (13...cd4 14.Nd4 Nc5 15.Qa1 Qa1 16.Ba1+=) 14.Qb3= Qb3 15.Nb3 Bb7 16.0-0 Ne4 17.Bb2 dc4 18.Bc4 Rc8 (18...cd4 19.Bd4 Rc8 20.Bd3+=) 19.dc5 Ndc5 20.Nc5 Nc5 (20...Rc5 21.Bd3 Bf6 22.Nd4=) 21.Ba3 (21.Ne5 Ne4=) 21...Ra8 (21...Bf6 22.Rc1+=) 22.Bc5 (22.Bb2 Ra4 23.Rc1 Bd5 24.Bd5 ed5=) 22...Bc5 23.Ne5 Be7 24.Nd7 Bd8 25.Be2 (25.Ne5 Rc8=) 25...Ra2+= 26.Re1 Rd2 27.Ne5+= Bf6 28.Nc4+= Rc2 29.Nb6 g6 30.Kf1 Bd8 31.Nc4 Bd5 32.Ne5 Rb2 33.Nd7 Ba5 34.Rc1 Bd2 35.Rd1 Bc3 36.Bd3 Kg7+= 37.Rb1 f6?? 38.b6?? Kf7? 39.Nc5 Rb1 40.Bb1 Bc4 41.Kg1 Ke7 42.f4 Ba5 43.b7 Bc7 44.Bd3 Bd5 45.Na6 Bf4 46.ef4 Bb7 47.Nc5 Bc6 48.Kf2 e5 49.fe5 fe5 50.g3 Be8 51.Ke3 h6? 52.Bc4 g5?! 53.Ne4 Bc6 54.Bg8 Kf8?! 55.Be6 Kg7 56.Bf5 h5 57.Ng5 Kf6 58.Be4 Bd7 59.h4 Kg7 60.Bf3 Kg6 61.Ke4 Ba4 62.Ke5 Bb3 63.Ne6 Kh6 64.Nf4 Bf7 65.Bh5! Ba2 66.Kf6 Bb1 67.Bg6 Bg6 68.Ng6 Kh7 69.Ne7 Kh6 70.g4 Kh7 71.h5 (71.h5 Kh6 72.Nf5 Kh7 73.Kf7 Kh8 74.g5 Kh7 75.g6 Kh8 76.g7 Kh7 77.g8Q#; 71.Kf7 Kh6 72.Nf5 Kh7 73.g5 Kh8 74.h5 Kh7 75.g6 Kh8 76.g7 Kh7 77.g8Q) 1–0. Schatz,Hans Ullrich – Kreiling,Carsten (2145), Baunatal op 4th, 1998.

11.d4 Qc7 12.cd5 Nd5 13.0-0+=.

10.Nc3 0-0 11.Be2 Qc7 12.0-0 Nb6 13.d3 Rd8 14.Qc2 Bd7 15.Bb2 Ra8 16.Ra1 Ra1 17.Ba1 Ne8 18.Na4 Na4 19.Qa4 f6 20.Nd2 dc4 21.dc4 (worse is 21.Qc4 Qa5 22.Bc3 Qb5-/+; 21.Nc4?! Nd6 22.Qa8 Qc8=) 21...Bd6 22.f4 e5 23.g3 ef4 24.ef4 g5 25.Ne4 gf4 26.Nf6 (better is 26.Qa8 Qc8 27.Qc8 Bc8 28.Bf6 fg3 29.hg3 Bg3 30.Be7=) 26...Nf6-/+ 27.Bf6 Bf5 (better is 27...fg3!? 28.h4 Be6-/+) 28.Bf3 Kf7 29.Qa1 Be6 30.Bh8 Kg8 (30...fg3?? 31.Qf6 Kg8 32.Qe6 Kh8 33.Qf6 Qg7 34.Qd6+-) 31.Qa8 (better is 31.b6!? Qf7 32.gf4 Bc4 33.Be5 Be5 34.Qe5 Qg6 35.Qg5+=) 31...Bf8+= 32.Qa1 Qf7 33.Kg2 (better is 33.gf4!? Bc4 34.Be5=) 33...Bc4 34.b6 fg3 35.hg3 Bd5 36.Bd5 Qd5 37.Kh3 Qe6 38.Kg2 Qb6 39.Be5 Qe6 40.Bf4 b5 41.Qd1 b4 42.Qd8 h6 0–1. Krebbers,Wilfried (2155) – Stefkovic,Marijan (2130), Goch op, 2006.

10.cd5 ed5 11.Be2 c4 12.0-0 Nc5 (12...Qa5 13.Nc3=) 13.d3+= cd3 14.Bd3 Nd3 (14...0-0 15.Bd4+=) 15.Qd3 0-0 16.Nbd2 (16.Rc1 Be6+=) 16...Be6 17.Bb2 Nd7 18.Nd4 (18.Bd4 Qc7=) 18...Bf6 (18...Ne5 19.Qc2 Qb8 20.Ra1=) 19.Ne6 (19.Rc1 Ne5 20.Qc2 Qa8=) 19...fe6 20.Ba3 Be7 (20...Re8 21.Rc1=) 21.Bb2 (21.Be7 Qe7 22.e4 Ne5=) 21...Bf6 (21...Nc5 22.Qd4 Bf6 23.Qc5 Bb2 24.e4=) 22.Ba3 Ne5 23.Qc2 (23.Qe2 Rf7=) 23...Qc8 (23...Re8 24.Bb2=) 24.Rc1 (24.Qb3 Rf7=) 24...Qc2=+ 25.Rc2 Ra8 26.Ra2?? (better 26.Bb2=+) 26...Be7!!-+ 27.Nb1 (27.Be7 Ra2 Pinning (27...Ra2 Deflection)) 27...Nc4 28.h3 (28.b6 Ra5-+ (28...Ra3?! 29.Na3 Ba3 30.e4-+)) 28...Ba3 (28...Ra3?! 29.Na3 Na3 30.Rb2-+) 29.Na3 (29.Kf1 Ra5-+) 29...Ra3 30.Ra3 Na3 0–1. GuestZPFS – Teckert, freechess.org, 2016.

10.Be2 0-0 11.0-0 Nb6 12.d3 Bd6 13.Nbd2 Qc7 14.Qc2 e5 15.cd5 Nbd5 (15...Nfd5 16.Ne4 Nb4 17.Qd2=) 16.Nc4+= Re8 17.Nd6 Qd6 18.Rc1 b6 19.Ne5 Re5 20.Be5 Qe5 21.d4 Qe7 22.dc5 bc5? (better 22...Ne3 23.Qd2 Ned5+=) 23.Qc5+- Qc5 24.Rc5 Bd7 25.e4 Nf4?? (better 25...Nb6 26.Rc7 Be6+-) 26.b6 Ne2 27.Kf1 Ne4 (27...Nd4 28.b7 Nc6+-) 28.b7 h6 29.b8Q Kh7 30.Rc7 Be6 31.Ke2 Nd6 32.Qd8 Nc4 33.Qd3 g6 34.Rc4 Bc4 35.Qc4 Kg7 36.Qd4 Kg8 37.Qd8 Kg7 38.f4 Kh7 39.Qf8 f5 (39...f6 40.g4 h5 41.Qf7 Kh8 42.f5 gf5 43.gh5 f4 44.h6 f3 45.Kf3 f5 46.Qg7) 40.Qf7 Kh8 41.h4 g5 (41...h5 42.Ke3 g5 43.hg5 h4 44.g6 h3 45.Qh7) 42.hg5 hg5 43.fg5 f4 44.g6 f3 45.Ke3 (45.Ke3 fg2 46.Qh7) 1-0. DEFFM – GuestKGLR, freechess.org, 2021.

10.Be2 0-0 11.d3 b6 12.Nbd2 Bb7 13.0-0 Qc7 14.Qc2 h6 Secures g5 15.Bb2 Ra8 16.Ra1 Qb8 17.Qb1 Ra1 18.Qa1 Qa8 19.Qa8 Ba8 20.Ne5 Ne5 21.Be5 Nd7 22.Bc7 Kf8 23.d4 (23.f4 Ke8=) 23...Ke8 24.Nb3 Bd8 25.Bd8 Kd8 26.f3 dc4 27.Bc4 Bd5 Black threatens to win material: Bd5xc4 28.Nd2 cd4 29.ed4 Nf6 30.Bd3 Bb7 31.Nc4 Nd5 32.Nd6 White threatens to win material: Nd6xb7 32...Kc7 33.Nf7 Nb4 34.Bg6 Bd5 35.Ne5 Here comes the goal–getter 35...Kd6 (35...Bb3 36.Be4=) 36.Kf2 Bb3 37.Ke3 (37.g3 Bc2 38.Nc4 Kc7+=) 37...Nd5= 38.Kd2 Nf4 Black threatens to win material: Nf4xg2 39.Kc3 Bd5 40.Be4 Ng2 41.Bd5 ed5 A knight endgame occured. (41...Kd5 Worse is 42.Nd7+=) 42.Kd2 Nh4 43.Ke3 Nf5 44.Kd3 g5 45.Ng4 h5 46.Nf2 0–1. Huber,Herbert – Hoffmann,Erwin (1865), Fechenheim CC–ch, 2003.

10.Be2 e5 11.Ne5+- 0-0 12.cd5 (12.0-0 Ne5 13.Be5 dc4 14.Bc4 Bd6+=) 12...Nd5 (12...Ne5!? 13.Be5 Qd5 14.Bf6 Bf6=) 13.Nd7 Bd7 14.0-0 b6 (14...Qe8 15.Qb3 Be6 16.d4+-) 15.Qb3 Nb4 16.Bc3 Be6 17.Qb2 Nd3 18.Bd3 Qd3 19.Bg7 Rd8 (19...Ra8 20.Bh6 Qg6 21.Bf4+-) 20.Bh6 f6 (better 20...Qg6 21.Bf4 Bf6+-) 21.f4?? (21.Bf4 Bc4 22.Re1 Bb5+-) 21...Bc4 (better 21...Qg6!? 22.f5 Bf5=) 22.Rf3+- Kf7 23.Na3 (better 23.f5+-) 23...Bd5=+ 24.Rg3 Qe2 (24...Rg8 25.Rg8 Kg8 26.Qc1-/+) 25.Rg7 (25.Qc1 c4 26.Nb1 Qh5=) 25...Ke6 (25...Ke8 26.h3 Qh5 27.Qc2 Qh6 28.Rh7=+) 26.f5 Kd6?? (26...Kf5 27.g4 Double attack (27.Re7 Deflection; 27.Rh7 Zwischenzug)) 27.Bf4 Kd7 28.h3 Qd1 (better 28...Rg8!? 29.Rg8 Bg8+-) 29.Kh2+- Rg8? (better 29...Ke8+-) 30.Qf6 Rg7 31.Qg7 Qd2 (31...Ke8 32.f6 Bf8 33.f7 Bf7 34.Qe5 Kd7 35.Qc7 Ke6 36.Qc6 Kf5 37.g4 Qg4 38.hg4 Kg4 39.Qd7 Kf3 40.Qf7+-) 32.f6 (32.f6 Qg2 33.Qg2 Bg2 34.fe7+-) 1–0. GuestRTFM – GuestWZSL, freechess.org, 2018.

9.c4 Ba6 10.d3 =+.

9.c4 Bd6 10.cd5 cd5 11.Bb5 Bd7 12.Bd7 Nbd7 13.Ne2 0-0 14.0-0 Ng4 15.f4 Qh4 16.h3 Ngf6 17.Qe1 (17.Qa4 Nb6 18.Qa6 Nc4=) 17...Qh6 18.Ng3 (18.Bf6 Nf6 19.d3 Qg6=) 18...Nc5 19.Nc3 Ra8 20.Nb5 Be7 21.Nc3 (21.f5 Rb8 22.Qe2 Ne8=) 21...Qg6 22.f5 Qg5 23.Qf2? (better is 23.Nce2= and White could well hope to play on) 23...Bd6-/+ 24.Nce2 e5 (24...Nfe4 25.Ne4 Ne4 26.Qe1 ef5 27.Bd4-/+) 25.Bc3 (25.Qe1!?-/+) 25...e4-+ 26.Kh2?? (better is 26.Bf6 gf6 27.Nf4-/+) 26...Nd3 (26...Nh5 27.Qg1 Ng3 28.Ng3 Qg3 29.Kh1-+) 27.Bf6 Qf6 28.Qg1 Ra2 29.Rd1 Qf5 30.Ra1 Ra1 31.Qa1 h5 32.Nf4 Bf4?? 33.ef4+= Qf4 34.Qa8 Kh7 35.Qd5 h4 36.Qf5 Qf5-/+ 37.Nf5 g6 38.Nh4 Nc1 39.g3 Nb3 40.Ng2 Nd2 41.Ne3 Kg7 42.Kg2 Kf6 43.Kf2 Ke5 44.h4 f5 45.Ke2 Nf3 46.Ng2 Kd4 47.Nf4 Ne5 48.Ne6 Kc3 49.Nf4 Kc4 50.Ke3 Kc5 51.Ke2 Kd6 52.Ke3 Ke7 53.Nd5 Ke6 54.Nf4 Kf6 55.Nd5+= Kg7 56.Kf4 Nd3 57.Kg5 Nc5 58.h5? Ne6-+ 59.Kh4 g5 60.Kh3 Kh6 61.g4?? Nf4 62.Nf4 gf4 63.gf5 Kh5 64.f6 Kg6 65.Kg4 e3 (65...e3 66.f7 Kf7 67.Kf3 Ke6 68.Ke2 Kf5 69.Kf3 Ke5 70.Ke2 Kd4 71.Ke1 Kd3 72.Kf1 Kd2 73.Kg2 e2 74.Kf3 e1Q 75.Kf4 Qe7 76.Kg3 Ke3 77.Kg4 Qe5 78.Kh3 Kf3 79.Kh4 Qd5 80.Kh3 Qh5; 65...f3 66.f7 Kf7 67.Kg3 Ke6 68.Kf2 Kd5 69.Kg3 Kc4 70.Kf2 Kd3 71.Kg3 Ke3 72.Kg4 f2 73.Kf5 Kd4 74.Kf6 f1Q 75.Ke6 e3 76.Kd6 Qf7 77.Kc6 e2 78.Kb6 e1Q 79.Ka6 Qb1 80.Ka5 Qfa2) 0–1. Plock,Joerg (1675) – Winterstein,Holger (1890), Hamburg HSK DWZ op 1st, 2002.

9.c4 Nbd7 10.Qa4 Qb6 11.Bd3 (better is 11.Qc2!?+=) 11...Nc5-/+ 12.Bc2?? (better is 12.Qc2 Nd3 13.Qd3 dc4 14.Qc2-/+) 12…Na4-+ 0–1. Valpa – M54, playchess.de, 2002.

9.c4 Nbd7 10.cd5 cd5 11.Nf3 Qc7 (11...Bd6 12.Nc3=+) 12.Bb5= Bd6 (12...Be7=) 13.Bd7 (13.Bf6!? gf6 14.Nc3=) 13...Nd7=+ 14.0-0 0-0 (14...Ba6 15.d3-/+) 15.Nc3 (15.Qc1 Ba6 16.Qc7 Bc7-/+) 15...Ba6-/+ 16.Ne2 (16.Re1 Nc5-/+) 16...Qc4 (16...Bd3 17.Re1-/+) 17.Re1 Qd3 (17...Ra8 18.Nc1-/+) 18.Nf4=+ Qa3 (18...Qb5 19.Nd4 Qb7 20.Nh5=+) 19.Nh5 e5 20.Bc3 Bd3-/+ 21.Ng3 f6 22.Qa1 Qc5 23.Rc1 Qb5 24.Ne1 Bg6 25.Qa5 Qb3 26.h3 Rb8 27.Nf1 Qb7 28.Ra1 Nc5 29.Qa7 Qc6 30.f3 Bf5 31.Ng3 Bd7 32.Ne2 Na4 33.Rc1 Qb5 34.Kf2 Bc6 35.Qa5?? Qb7-+ (36.Nc2 Ra8-+ (36...Nc3?! 37.Qc3 Bb5 38.d3-/+); 35...Nc3?! 36.Qb5 Bb5 37.Nc3-/+) 0–1. Goetz – Walther,Ernst, corr BdF, 1970.

9.d4 c5 10.c4 cd4 11.ed4 Bb4 =+.

9.Nf3 Bb4 10.Bc3 Bc3 11.Nc3 0-0 12.Be2 h6 13.0-0 Ba6 14.Ba6 Na6 15.Qe2 Nc7 16.e4 Re8 17.d3 (17.e5 Nd7+=) 17...Re7 (17...e5 18.Ra1+=) 18.Ne5 (18.e5 Nd7+=) 18...Qd6= 19.Nf3 Re8 (19...e5 20.ed5 cd5 21.Rb1+=) 20.ed5 (20.e5!? Qc5 21.Na4+=) 20...cd5 21.Ra1 Qb4 22.Nd1 Qd6 ½–½. Valpa – MasterStefan, playchess.de, 2004.

9.Nf3 Nbd7 10.c4 =.

9.f4 Bc5 10.Nf3 =+.

9.f4 Bd6 10.Nf3 0-0 11.c4 Ne4 12.Bd3 Nc5=+ 13.Bh7 Kh7 14.Ng5 Kg6 15.Qg4= e5 16.Ne6 Kf6 17.fe5 Be5 18.Rf1 Ke7-/+ 19.Qg5 f6-+ 20.Nd8 fg5 21.Be5 Rf1?? 22.Kf1= Kd8 23.Bb8+= Nd7 24.Ba7 Ba6 25.Bd4 Bc4 26.Kf2 Nf6 ½–½. Jueptner,Kurt – Wedel,Gerhard, corr DDR, 1984.

9.f4 Nbd7 10.Nf3 c5 11.c4 (11.Bb5 Bd6=) 11...Be7 12.Bd3 (12.Be2 Nb6=) 12...Ba6 13.Qc2 h6 (13...0-0 14.0-0=) 14.0-0 (14.Bf6!? Bf6 15.cd5 Bd3 16.Qd3 ed5 17.Qd5+=) 14...0-0= 15.Na3 Qa5 16.Bb2 (16.Bc3 Qc7= (< 16...Qa3 17.Ra1 Qa1 18.Ba1+/–)) 16...Rb8 17.Ra1 (17.Rb1 Rb7=) 17...Qb6 18.Rb1 (18.Be5 Ne5 19.fe5 Nd7=) 18...Qd8 (18...Qb3 19.Bc3 Qc2 20.Rb8 Nb8 21.Bc2=+) 19.h3 (19.f5 Bd6=) 19...Rb4 20.Bc3 (20.Bf1 Bb7=) 20...Rb1=+ 21.Qb1 Qb6 22.Nb5 dc4 23.Bc4 Nd5 24.Qd3 N7f6 25.Be5 Nb4 26.Qe2 Nfd5 27.Kh2 Nc6 28.Na3 Ne5 29.Ne5 Bc4 30.Nac4 Qc7 31.g3 Nf6 32.Qf3+= Bf8 33.Qc6 Qc6= 34.Nc6 (34...Nd5 35.g4=). Schiffler,L – Ueberscher, Soemmerda, 1950.

9.f4 Nbd7 10.Nf3 Bd6 11.Be2 =.

9.f4 Be7 10.Nf3 0-0 11.Be2 c5 12.c4 Ba6 13.Qc2 Nbd7 14.0-0 h6 15.Re1 Ne8 (15...Qb6 16.Na3=) 16.Qa2 (16.cd5 Be2 17.de6 Bf3 18.ed7 Qd7 19.gf3 Nc7+=) 16...Bb7 (16...Bc4 17.Bc4 dc4 18.Qc4=) 17.Ne5 (17.cd5 ed5 18.Nc3 Nef6=) 17...Ne5 18.Be5 Bf6 19.Bf6 (19.Qa7 Qc8=) 19...Nf6=+ (< 19...gf6 20.Bf3+/–) 20.Bf3 Qc7 21.g3 Ra8 22.Qb2 Ra4 23.cd5 ed5 24.Rc1 Ba6 (better is 24...Ra7!?=+) 25.Nc3+= Rb4 26.Qa3 (26.Qa2 Bb7 27.Nd5 Bd5 28.Bd5 Rb8+/–) 26...Qd6+= 27.Nd5 Nd5 (27...Qd5 28.Bd5) 28.Bd5 Qd5 29.Qa6 c4 30.Qa2 Qd4?? (30...Qd3 31.Qc2 Qd5 32.f5+=) 31.Qc2 (better is 31.ed4 g6 32.d5+-) 31...Qd5+= 32.Qc3 Qb5 33.Kf2 Rb2 34.Qd4 Rb4 35.h4 Rb2 (35...Kh7 36.Qc3+=) 36.g4 (36.Rc4 Rd2 37.Qd2 Qc4+/–) 36...Ra2 (36...Rb4 37.Qd8 Kh7 38.Qe7+/–) 37.Kg3 (37.Rc4 Rd2 38.Qd2 Qc4+-) 37...Qb4 (37...Ra4!?+/–) 38.Qc4+- (38.Rc4?! Qb1 39.Rc8 Kh7+/–) 38...Qc4 39.Rc4 Rd2 40.Rc8 Kh7 41.f5 g5 42.fg6 ½–½. Thies,R – Markus,R, corr ICCF EU–I–GT–198, 1985.

10.c4 0-0=+ 11.cd5 (11.Bf6 Qf6 12.d4 Nd7=+) 11...ed5 12.d4 (12.Be2 Re8=+) 12...Ne4 13.Be2 (13.Bd3 Bb4 14.Nfd2 Qg5=+) 13...Qa5-/+ 14.Nbd2 Bb4 15.0-0? (better is 15.Bb2-/+) 15...Nd2 (15...Bd2 16.Qc2-+) 16.Nd2 Bd2 17.Qb3 (17.Qc2 Be1 18.Bb2 Qd2 19.Qd2 Bd2-+) 17...Ba6 (17...Bf5 18.Bb2-+) 18.Ba6 Na6 19.Bb2 Rb8 20.Ra1 (20.Qc2-+) 20...Qa1! 21.Ba1 Rb3 (22.Kf1 Rb1 23.Ke2 Bb4-+) 0–1. Zimmer – Bachmann, corr Germany, 1988.

10.Be2 0-0 11.0-0= Nbd7 12.c4 dc4 13.Bc4 Nb6 =.

10.Be2 0-0 11.0-0 Nbd7 12.c4 e5 13.cd5 cd5 14.Nc3 Qa5 15.Nb5 Bb8 16.Bc3 Qb6 17.Qa1 Re8 18.Rb1 Ne4 19.Ba5 Qh6 (better is 19...Qc6!?=) 20.Bc7+/– d4 (better is 20...Ba6!? 21.Bb8 Rb8 22.Ne5 Ne5 23.Qe5 Qd6+/–) 21.Bb8 Nd2? (better is 21...Nb8 22.Nc7 Re7+-) 22.ed4 (22.ed4 Nb1 23.Qb1 Nb8 24.de5+=; worse is 22.Nd2 Nb8 23.Nc7 Re7 24.Rb8 Rc7+-) 1–0. Krivoshapko,Alexander – Konin,Sergey, 2012.

10.Be2 0-0 11.0-0= Nbd7 12.d4 Qa5= 13.Nbd2 Ba6 14.Nb3 (14.c4 Rb8=) 14...Qa2 15.Ba6 (15.Ne5 Rb8 16.Ba6 Qa6+=) 15...Qa6 16.Nfd2 (16.Qd3 Ra8+=) 16...Ra8-/+ 17.Bc3 Qb5 18.Re1 Nb6 (18...Qb8 19.h3+=) 19.f3 (19.e4 de4 20.Ne4 Ne4 21.Re4 Qf5-/+) 19...Na4 20.Ba1 Bb4 (20...Qb8 21.g3+=) 21.Qe2 (21.e4 Nb6+=) 21...Nc3 (21...Qe2 22.Re2 Nb6 23.Nb1-/+) 22.Bc3 (22.Qb5 cb5 23.Nb1 Nb1 24.Rb1 Bd6+=) 22...Bc3+= 23.Qb5 (23.Qd3 Qd3 24.cd3 Ra2+=) 23...cb5-/+ 24.Kf2 Ra2 25.Rc1 Nd7 (25...b4 26.g4-/+) 26.Ke2 (26.e4 b4+=) 26...Nb6 (26...b4 27.e4+=) 27.Kd3 Bb2 (27...b4 28.e4+=) 28.Rf1 Nc4 29.Nb1 b4 30.N3d2 Ba3 31.Na3 ba3 32.Nc4+/– dc4 33.Kc3 Kf8 34.Rb1 Ke7 35.e4 h5 36.h4+/– g6 37.g3 Kd7 38.f4 Kc6 39.Rb4 Ra1 40.Ra4 Rg1= 41.Ra3 Rg3 42.Kb4 Rg4 43.Rf3 Rh4 44.Kc4 Rg4 45.Kd3 Rg1 46.c4 Ra1 47.e5+= Rc1 48.Rf2 Rd1 49.Ke4 Rc1 50.Kd3 Rd1 51.Rd2 Rf1 52.Ke3 Re1 ½–½. Zdechlik – Buczinski,Henryk, Poland, 1982.

10.Be2 Nbd7 11.c4 +=.

10.Be5 0-0 11.Bd6 (11.Nc3 Be5 12.Ne5 Qd6+=) 11...Qd6 12.d4 (12.Be2 e5+=) 12...Nbd7 13.Bd3 e5 14.de5 Ne5 15.Ne5 Qe5 16.0-0 (16.Nd2 Bg4 17.Qc1 c5+=) 16...Ng4 17.g3 Qh5 18.h4 g5 19.Kg2 (19.c4 gh4 20.Qd2 Nh2-+) 19...gh4-+ 20.Rh1 (better is 20.Qf3!?-+) 20...h3! 21.Kg1 (21.Rh3) 21...h2 22.Kg2 Ne3! 23.fe3 Bg4 24.Qe1 Bf3 25.Kf2 Bh1 26.Qh1 Ra8 27.Nd2 (27.Kg2 Ra1-+) 27...Ra1! 28.Nf1 c5 (28...c5 29.Kg2 c4 30.Qh2 Qh2 31.Nh2 cd3 32.cd3 Ra2 33.Kg1 Ra3-+) 0–1. towa (1815) – terrier (2120), gameknot.com, 2015.

10.Be2 0-0 11.0-0 c5 12.c4 Ba6 13.cd5 ed5 14.d3 Nc6 15.Nbd2 Re8 16.Qa4 Nb4 17.Rb1 (better is 17.Qa3!?=) 17...Bd3-/+ 18.Bd3 Nd3 19.Ne5 Ne5 20.Be5 Qd7 21.Qc2 Qe6 22.Bf6 Qf6 (22...Bf6?! 23.Qc5 Rc8 24.Qb5=) 23.g3 Ra8 24.Nb3 h6 25.Rc1 Qe5 26.Qe2 c4 27.Nd4 Bc5 28.Nf3 Qf5 29.Rd1 Rb8 30.Nd4 Bd4 31.Rd4 c3 32.e4 Rb1 33.Kg2 Qc8 34.Qc2 (34.ed5 c2 35.Rc4 Qc4 36.Qc4 c1Q 37.Qc1 Rc1-+) 34...Rb2 0–1. hertford (2095) – DanQuigley (2355), ChessWorld.net, 2003.

10.Be2= 0-0 11.0-0 c5 12.c4 Bb7 13.cd5 Nd5 14.Nc3 =.

10.Be2= 0-0 11.0-0 c5 12.c4 Nc6 13.d4 dc4 14.Bc4 (14.dc5 Qd5=) ½–½. Plock,Joerg (1700) – Herzel,Alois (1810), Landesliga Ost1, 2002.

10.Be2= 0-0 11.0-0 c5 12.Ne5 Bb7 =.

10.Be2= 0-0 11.0-0 Nbd7 12.c4 =.

9.d3 Qa5 10.Nd2 c3 11.Nb3 =.

9.d3 Bb4 10.Bc3 Bc3 11.Nc3 cd3 12.Qd3 =.

9.Nf3 Qa5 10.Nc3 Bd7 =.

9.f4 Nbd7 10.Nf3 Qc7 11.0-0 0-0 12.Qe1 b6 13.Qh4 Bb7 14.Bb2 Ra8 15.Nc3 Ra7 (15...d4 16.ed4 cd4 17.Nd4=+) 16.Nd1 (16.Kh1 Be7=) 16...d4 (16...Ra2 17.Qg3=+) 17.c4 de3 18.de3. hooks – playwaycool, ChessWorld.net, 2006.

10.c4 (--> 8.Nf3 Bd6 9.c4 0-0 10.Be2).

11.d3 Qa5 12.Nc3 Qc7 =+.

11.d3 Qa5 12.Nc3 e5 =+.

11.d3 e5 =+.

12.Nc3 Bb4 13.Na2 Be7 14.Bc3 =.

12.Nc3 Qc7 13.Bb2 =+.

13.Qb1 b6 14.Rd1 Bb7=+ 15.Bb2 (15.e4 Bf4 16.e5 Ne4 17.Ne4 de4=+) 15...Ra8-/+ 16.Qa1 Qb4 17.Qb1 Ne8 18.Ng5 (18.Ba1 Qa5-/+) 18...Nc7 19.Bh5 (19.e4 Be7 20.Nf3 Nb5 21.Nb5 Qb5-/+) 19...g6 20.Be2 Nb5 21.Nb5 Qb5 22.Bg4 (22.Nf3 Ra4 23.c3 Ba3 24.Ba3 Qb1 25.Rb1 Ra3-+) 22...Bf8 (22...h6 23.Nh3-+) 23.Bc3 (23.Be2 Qb4-/+) 23...Qb1-+ 24.Rb1 Ra2 (24...Bc6 25.Ne6 fe6 26.Be6 Kg7 27.Kf1-+) 25.Ne6 -/+.

13.Qb1 b6 14.e4 Ne4 15.Ne4 de4 =.

13.Qb1 Qc7 14.Bb2 =+.

13.Qb1 Rd8 14.Bb2 =+.

10.0-0 0-0 11.Bb2 e5 12.d3 Qc7 13.Nfd2 Nb6 14.c4 Be6 15.cd5 Nfd5 16.Nc4 Nc4 (16...Ra8 17.Nd6 Qd6 18.Nd2=+) 17.dc4 =.

10.0-0 0-0 11.d4 b6 12.c4 (12.dc5 bc5 13.c4 Qb6=) 12...Bb7 13.cd5 ed5 (13...Bd5 14.Nc3=) 14.Bd3 (14.dc5 bc5 15.Nc3 Re8=) 14...c4=+ 15.Bf5 g6 16.Bh3 Qe7 (16...Ne4!?=+) 17.Nc3+= Ra8 18.Bb2 (18.Qc2 Ra5=) 18...Ba3 (18...Ne4!?=+) 19.Ba3 +=.

10.0-0 0-0 11.d4 c4 12.Nc3 =+.

10.0-0 e5 11.d3 =+.

10.0-0 e5 11.Nh4 =.

10.c4 0-0 (--> 8.Nf3 Bd6 9.c4 0-0 10.Be2 Nbd7).

10.c4 dc4 11.Na3 Nb6 =.

9.Be5 c4 10.Nc3 Bb4 11.Qb1 Bc5 12.Nf3 0-0 13.Qb2 Be8 14.d3 cd3 15.cd3 Nbd7 16.Bg3 Be7 17.d4 Nh5 18.Bd3 Qa5 (18...f5 19.Be5=) 19.Bh4 +=.

9.Be5 Ne4 =.

9.f4 Qa5 10.Bc3 Qa4 11.Nf3 =.

9.f4 Qa5 10.Bc3 Qb6 11.Nf3 c4 12.0-0 (12.Nd4 Ne4=) 12...Qb5=+ 13.d3 Bc5 14.Bd4 cd3 15.Bd3 Qa5 (15...Qc6 16.Ne5 Qc7 17.Nd2=+) 16.Nbd2 (16.Nfd2 Qc7-/+) 16...Qc7 17.Ne5 0-0 18.Qf3 Rd8 (18...Ne5 19.fe5 Nd7 20.Nb3-/+) 19.Qh3 h6 20.Qg3 b6 (20...Ne5 21.Be5 Qe7 22.Ra1=+) 21.Bb2 (21.Ra1 Bb7=+) 21...Nh5 (21...Be7 22.Ra1=+) 22.Qf3 Nf4 23.Nf7 Kf7 24.Qg3 (24.Kh1 Kg8 25.ef4 Bd6=+) 24...e5 25.Kh1 Be3 26.Qe3 Qc5 27.Qc5 bc5 28.g3 g5 29.gf4 gf4 30.Bb5 Ke6 31.Re1 e4 32.Ne4 de4 33.Re4 Kd6 34.Rf4 ½–½. Bendig,Frank – Woischke,Norbert, corr TKM/Final, 2003.

9.f4 Nbd7 10.Nf3 Qb6 11.0-0 =.

10.Nf3 0-0 11.0-0 Qa5 12.Bb2 c4 13.Nc3 (13.Nd4 Nc5 14.d3 Na4 15.Ba1 c3 16.Nb3 Qc7 17.Nd4 e5 18.fe5+=; 13.Be5 Bb4 14.d3 Ne5 15.fe5 Ng4 16.Qc1 cd3 17.Bd3 Qc7 18.Kh1-/+) 13...Qb4 14.Qc1 Re8 15.Nd4 Bc5 16.Re1 Qa5 17.Nf3 Rd8 18.Rf1 =.

10.Nf3 0-0 11.0-0 Qa5 12.Bb2 Qc7 13.Nc3 (13.Qe1 b6 14.Qg3 Bb7 15.Na3 Ra8 16.Ra1 c4 17.Nb1 Ra1 18.Ba1+=; 13.c4 dc4 14.Na3 c3 15.Bc3 Rd8 16.Nc4 Nd5 17.Qc2 b6 18.Ng5+=; 13.Qc1 b6 14.Qe1 Bb7 15.Qh4 Ra8 16.Nc3 d4 17.ed4 Bf4 18.dc5=) 13...e5 (13...Re8 14.Qe1 e5 15.fe5 Ne5 16.Ne5 Re5 17.b6 Qb6 18.Nb5=) 14.Ne5 (14.b6 Qb6 15.fe5 Ne5 16.Ne5 Qb2 17.Nd3 Qa3 18.Rf6+=) 14...Ne5 15.fe5 Be5 16.Rf6 gf6 (worse is 16...Bf6 17.Nd5 Qd6 18.Nf6 gf6 19.Bd3+/–) 17.Nd5 Qd6 (17...Bh2 18.Kh1 Qa5 19.Nf6 Kg7 20.Bd3+-) 18.Be5 fe5 19.Bf3 f5 20.d3 Be6 21.c4 Ra8 22.Qe1 e4 23.de4 fe4 24.Be4 Qe5 25.Qg3 Qg3 26.hg3 Kg7 27.Nb6 Rd8 28.Kf2 (28.Bb7 Rb8 29.Na4 Rb7 30.Nc5 Rb6-+) 28...Rd6 29.Nd5 Bd5 30.Bd5 Rf6 31.Ke2 b6 32.Kd3 Rf2 33.Bf3 Kf6 ½–½. pcmvr (2765) – aspasio (2875), net–chess.com, 2014.

10.Nf3 0-0 11.0-0 Qa5 12.Bb2 Rd8 13.Qe1 (13.Bc3 Qc7 14.Bb2 b6 15.Qe1 e5 16.fe5 Ne5 17.Qh4 Ng6 18.Qa4+=; 13.Qc1 c4 14.Nc3 Bb4 15.Nd4 Bc5 16.d3 Nb6 17.Nd1 Bd7 18.Bc3=) 13...c4 14.Nd4 Qa2 15.Qc1 Bc5 16.d3 cd3 17.Bd3 Qa4 18.Qe1 =.

10.Nf3 0-0 11.0-0 Qa5 12.Bc3 A) 12...Qb6 13.Qc1 (13.Bb2 c4 14.Nd4 e5 15.fe5 Be5 16.d3 Qc7 17.g3 Re8 18.Bf3+=; 13.Qe1 c4 14.Nd4 Ne4 15.d3 Nc3 16.Nc3 Qc7 17.dc4 Nb6 18.c5=) 13...Ne4 14.Qb2 Nc3 15.Nc3 c4 16.Ra1 Re8 17.Na4 Qd8 18.Qd4=; B) 12...Qc7 13.Qe1 (13.Bb2 b6 14.Qe1 Bb7 15.Qh4 Ra8 16.Nc3 d4 17.ed4 Bf4 18.dc5=; 13.Ba1 b6 14.Qe1 Bb7 15.Qh4 Be7 16.Qg3 d4 17.ed4 Nh5 18.Qf2+=) 13...b6 14.Qh4 Bb7 15.Bb2 Ra8 16.Nc3 d4 17.ed4 Bf4 18.dc5=.

10.Nf3 0-0 11.0-0 Qc7 12.c4 (12.Qe1 b6=) 12...b6 13.cd5 (13.Bb2 Bb7=) 13...ed5 14.Nh4 Bb7 15.Bb2 g6 (15...d4 16.Nf5=+) 16.Nf3= Re8 17.Na3 Ne4 18.Qc2 (18.d3 Nef6 19.Qd2 d4-/+) 18...c4 (18...Ra8 19.Ra1=) 19.Nb1 (19.Nd4 Bb4 20.d3 Nec5 21.dc4 Re3=) 19...Ndc5 20.Nc3 Ra8 21.Ne4 ½–½. Bendig,Frank (2110) – Vaassen,Jack (2095), CA.2002.0.00031, 2002.

9.Bc3 Qa4 10.Be5 Nbd7 A) 11.Bf4 c4 (11...Qa5 12.c4 Nh5 13.Be5 Ne5 14.Ne5 Nf6 15.f4 Bd6 16.Bd3 Be5+=; 11...Qa1 12.Nc3 Qd1 13.Kd1 d4 14.ed4 cd4 15.Ne2 Ne4 16.Ke1 f6=; 11...Ne4 12.Ng5 e5 13.Ne4 Qe4 14.Nc3 Qf5 15.Bg3 Nf6 16.b6 c4=) 12.Nc3 Qa5 13.Qb1 Nh5 14.Bg5 h6 15.Bh4 g5 16.Bg3 g4-/+; B) 11.Nc3 Qa5 (11...Qb4 12.Bg3 d4 13.ed4 cd4 14.Na2 Qa4 15.Nc1 Ne4 16.Bf4 Bd6=; 11...Qa3 12.Be2 Ne5 13.Ne5 Bd6 14.f4 Be5 15.fe5 Nd7 16.0-0 Ne5+=; 11...Qg4 12.Bf4 c4 13.h3 Qh5 14.Be2 g5 15.Bg5 Qg6 16.Bf6 Qf6+=) 12.Be2 Ne5 13.Ne5 c4 14.0-0 Bb4 15.Qa1 Bc3 16.Qc3 Qc3-/+; C) 11.Bc7 Be7 (11...Qg4 12.Nc3 Be7 13.Be2 Ne4 14.0-0 Nc3 15.dc3 c4 16.Nd2 Qg6=; 11...c4 12.Nc3 Qa3 13.Be2 Bb4 14.Nb1 Qa7 15.c3 Be7 16.Nd4 Qc5=; 11...Ne4 12.Bd3 Be7 13.0-0 Qb4 14.c4 Nd6 15.cd5 ed5 16.Nc3 Nf6=) 12.Be2 c4 13.Nc3 Qb4 14.0-0 0-0 15.Qa1 Qc5 16.Bf4 Ne4+=.

9.Bc3 Qa4 10.Bf6 gf6 11.Nc3 Qb4 (11...Qg4 12.g3 Qb4 13.Be2 Bd6 14.Qa1 Nd7 15.0-0 Qg4 16.Ne5 Qg5+=; 11...Qa5 12.Be2 Bd6 13.0-0 Qb4 14.Qa1 Qg4 15.b6 Rg8 16.g3 Kd8+=; 11...Qa3 12.Be2 Bd6 13.g3 Qb4 14.Qa1 Nd7 15.0-0 Qg4 16.Ne5 Qg5+=) 12.Qa1 Rg8 13.g3 Bd6 14.Qd1 Nd7 15.Qe2 Qb2 16.Qd1 c4=.

9.Bc3 Qa4 10.Bf6 gf6 11.Be2 Bg7 (11...Bd6 12.0-0= (12.Nc3 Qb4 13.0-0 Rg8 14.Kh1 Nd7 15.Ne1 c4 16.Nf3 f5=) 12...Qg4 13.d4 Rg8 14.g3 Qg6 15.dc5 Bc5 16.Bd3 f5=; 11...Qb4 12.c3 Qb2 13.c4 dc4 14.Bc4 Qb4 15.Qc2 Nd7 16.0-0 Nb6+=) 12.0-0+= f5 13.Qc1 (13.d4 f4+= 14.ef4 cd4 15.Qd2 Bd7 16.Qd3 0-0=) 13...c4= 14.d3 0-0 (14...Qb5 15.dc4 dc4 16.Na3+= Qc5+=) 15.dc4+= dc4 16.Nbd2 (16.Rd1 Nd7+=) 16...c3 17.Nb3 Bd7 18.Nfd4 f4 (18...Qb4 19.f4+=) 19.Bd3 (19.Rd1 fe3 20.Qe3 Qb4+=) 19...Qb4 (19...e5 20.Nc5 Qb4 21.Nd7 Nd7 22.Nf5+=) 20.Qd1+= f5 21.Qh5 Qd6 (21...b6 22.Ra1+=) 22.Bc4 Kh8 23.Rd1 fe3 24.Ne6 ef2 25.Kf1 (25.Kf2!? Qb6 26.Ned4+=) 25...Qb4+= 26.Qe2 Rc8 27.Nbc5 Rc5 28.Nc5 Qc5 29.Rd7 Nd7 30.Qe8 Qf8 31.Qd7 b6 32.Qd5 Bf6 (32...Qe8 33.Kf2 f4 34.Kf1=) 33.Kf2 (33.Qf5 Bg7 34.Qd5 Bf6+/–) 33...Qd8 (33...Be7+=) 34.Qe6 (better is 34.Qf5!? Bd4 35.Kf3+/–) 34...Qd4= 35.Ke2 Qe5 (35...Kg7 36.Qg8 Kh6 37.Bd3=) 36.Kf3 Qe6 (36...Kg7 37.Qf7 Kh6 38.Bd3=) 37.Be6+= Kg7 38.Bf5 h6 (38...Be5 39.g3+=) 39.Ke4 Be7 40.Kd5 Bc5 41.Kc4 Bg1 (41...Kf6!? 42.Bd3 Bd6+=) 42.h3 Bf2 43.Kc3 Bc5 (43...Bg3 44.Kd4+/–) 44.Kd3 Bg1 45.Ke4 Bc5 ½–½. Botvinnik,Ilya (2440) – Khmelniker,Ilya (2195), TCh–ISR, ISR, 2002.

9.Bc3 Qa4 10.Bf6 gf6 11.h3 Bd6 (11...Qb4 12.c3 Qb2 13.c4 dc4 14.Bc4 Qb4 15.Qc2 Bd7 16.Qd3 Bg7+=; 11...c4 12.d3 e5 13.dc4 dc4 14.Nfd2 Be6 15.Qf3 Nd7 16.Qb7 Qc2=; 11...Qa5 12.c4 dc4 13.Bc4 Qb4 14.Qc2 Nd7 15.0-0 Ne5 16.Ne5 fe5+=) 12.Nc3 Qb4 13.g3 Nd7 14.Bg2 Rg8 15.Qe2 Qb2 16.Qd3 f5 =.

9.Bc3 Qb6 10.Bb2 Nbd7 11.c4 Bd6 12.Be2 0-0 13.0-0 dc4 14.Bc4 e5 15.Qc2 e4 16.Ne1 (16.Ng5!? Qc7 17.h3+=) 16...Ne5 17.f4 ef3 (17...Nc4 18.Qc4 Bd7 19.Na3=+) 18.Nf3 Re8?? (18...Nc4 19.Qc4 Be6 20.Qc2 Qb5 21.Bf6 gf6 22.Nc3=) 19.Ne5 (better 19.Ng5 Be6 20.Be6 Re6 21.Nc3+-) 19...Be5= 20.Be5 Re5 21.Nc3 Be6 22.Be6 Re6 23.Ne2 (better 23.Na4!? Qb5 24.Nc5=) 23...Qb5-/+ 24.Nf4 Re8 25.Nh3 b6 26.Ng5 h6 27.Rf6 hg5 28.Rf5 f6 (28...Rd8 29.Qa2 Qd7 30.Rf2-/+) 29.Rd5 (29.Rf6! gf6 30.Qg6 Kf8 31.Qf6 Kg8 32.Qg6 Kh8 33.Qh6 Kg8 34.Qg6 Kf8 35.Qf6 Kg8 36.Qg6=) 29...Qc6 30.e4 Qe6 31.d3 Rb8 32.Qb3 Re8 33.Kf2 (better 33.Qc2!?=) 33...Kh7 34.h3 (34.Qc3 Qg4 35.Qc1 Ra8-/+) 34...Kg6 (34...f5 35.Kg1-+) 35.g4 (better 35.Kg1-/+) 35...Rd8?? (35...Kh7-/+) 36.Kg3 (better 36.Rg5! Kg5 37.Qe6+-) 36...Rd5-+ 37.ed5 Qd6 38.Kf3 (38.Kg2 Kf7-+) 38...Kf7 39.Ke2 Ke7 40.Qc3? (better 40.Kd1-+) 40...Qe5 41.Kd2 Qc3 (41...Qd5?! 42.Qa3 Qb7 43.Qb3-+) 42.Kc3 Kd6 43.Kc4 g6 44.Kb5 (44.d4 f5 45.dc5 bc5-+) 44...Kd5 45.Kb6 c4 (better 45...f5 46.Kc7-+) 46.dc4 Kc4 47.Kc6 Kd4 48.Kd6 Ke4 49.Ke6 f5 50.gf5 gf5 51.Kf6 g4 52.hg4 fg4 53.Ke6 g3 54.Kd6 g2 (54...g2 55.Kc5 g1Q 56.Kc6 Qc1 57.Kb7 Kd5 58.Kb6 Qc6 59.Ka5 Qb7 60.Ka4 Kc4 61.Ka5 Qb5) 0-1. Pi13 (2130) - almasssss (2245), Rated Bullet game, lichess.org, 2020.

9.Bc3 Qb6 10.Bf6 gf6 11.c4 d4 12.Bd3 e5 (12...Bd6 13.0-0=) 13.Qc2 h6 14.Bf5 Qc7 (14...Bf5!? 15.Qf5 Qe6+=) 15.Bc8+/– Qc8 16.Qe4 Nd7 17.d3 (17.0-0 h5+/–) 17...Be7 (17...Qc7 18.0-0+/–) 18.0-0 Nf8 19.Nh4 Ne6 20.Nf5 Ng5 (20...Bf8 21.Nd2+/–) 21.Qg4+- (21.Ne7?! Ke7 22.Qh4 Rg8+=) 21...h5?? (better is 21...Qd7 22.f4 Ne6 23.Ng7 Kd8 24.Ne6 Qe6+/–) 22.Nd6!! (22...Bd6 23.Qc8 Ke7 24.Qh8+-) 1–0. guest706 – guest7841, ICC, 2005.

9.Bc3 Qd8 10.Be5 Nbd7 11.Bf4 =.

9.d3 Qa5 10.Bc3 Bb4 11.Qd2 Bc3 12.Nc3 Qb5?? 13.Nb5+- 1–0. mrkt – tahirk, internet, 2007.

9.Be2 Bd6 10.0-0 0-0 11.d3 cd3 12.Bd3 Nbd7 13.Nfd2 (13.c4 e5 14.c5 Nc5 15.Be5 Be5 16.Ne5 Qe8=) 13...Nc5 (13...Qc7 14.f4=+) 14.f4 (better 14.Nf3=) 14...Qb6?? (14...Nd3 15.cd3 Bd7 16.Nc3=+) 15.Nf3?? (15.Bf6 gf6 16.Bh7 Kh8 17.Qh5 Kg7 18.Qg4 Kh8 19.Rf3 Na4 20.Bd3 Qe3 21.Re3 Bc5 22.Qh5 Kg7 23.Qh7) 15...Rd8 (15...Bf4 16.Bh7 Nh7 17.ef4=+) 16.Qe2 (16.Bd4 Bd7 17.Nc3 Qa5=) 16...Nd3=+ 17.cd3 Bd7 18.Bf6 (18.Bd4 Qb5 19.Nc3 Qa5=+) 18...gf6 19.Nc3 (19.Nd4 A) worse 19...Bb5 20.Qb2+/- (worse 20.Nb5 Qb5 21.f5 Kh8=+); B) 19...Bc5 20.Nc2 Qb5=+) 19...Rc8 (worse 19...Bb5 20.Rb1 Bf4 21.Nd4 Bh2 22.Kh2 Qc7 23.Kg1+/-) 20.Nd1 Qb5 (20...Bf4 21.Nd4 e5 22.Kh1-/+) 21.Nd4 Qa6 (21...Qb6 22.Qg4 Kf8 23.Qh4-/+) 22.Qg4 Kh8 23.Rf3? (better 23.Qh5 Be8 24.Nf2=+) 23...Rg8-+ (23...Qd3 24.Rg3 Qg6 25.Qh4+-) 24.Qh4 Rg6 (24...Be7 25.Qe1 Qd3 26.Nf2-+) 25.Rh3 (25.f5 ef5 26.Nf5 Bf5 27.Rf5 Qd3-+) 25...h6 26.Nf3 (26.Qe1 e5 (26...Qd3?! 27.Nf2 Qc4 28.Nf3-+) 27.f5 ed4 28.fg6 Bh3 29.gf7 Qd3 30.gh3 de3 31.Ne3 Kg7-+) 26...Qd3 27.Nf2?? (27.Qe1-+) 27...Qe3 28.g3 (28.Kh1 Bc5 29.Ng4 Qc1 30.Qe1 Qe1 31.Ne1 Rg4-+) 28...Bc5 29.g4 Qf2 (better 29...Bb5 30.Kh1 Qc1 31.Ng1-+) 30.Qf2 Bf2 (better 30...Rg4!? 31.Kf1 Bf2 32.Kf2-+) 31.Kf2 Bc6 (31...Rg4 32.Rh6 Kg7 33.Rh4 Rh4 34.Nh4-+) 32.f5 (32.Rg3-+) 32...Rg4 33.Rh6 Kg7 34.Rh3 ef5 (better 34...d4!? 35.Ke1-+) 35.Nd2 d4 36.Rg3 Kg6 37.Nc4 (37.Rd3 Rg2 38.Ke1 Rh2 39.Rd4 b5-+) 37...Rg3 38.hg3 Be4 39.Nd6 b6 (39...d3!? 40.Ke3-+) 40.Ke2 Bb1 (40...d3 41.Kf2-+) 41.Nc4 Kg5 (better 41...b5 42.Na3 Ba2 43.Kd3-+) 42.Kf3 (42.Nb6 f4 43.Kf3 Be4 44.Kf2 fg3 45.Kg3 f5-+) 42...d3 (better 42...b5 43.Nd2 Be4 44.Kf2 Bd5-+) 43.Nd2 (43.Nb6 Bc2 44.Nc4-+) 43…Bc2 0-1. KLINGON09 (1830) - shahpari (1770), lichess.org, 2019.

9.Be5 Nbd7+= 10.Bf6 Nf6 11.c3 Qa5 12.Nd4 (12.d3 Qb5 13.dc4 dc4+=) 12...Bc5 (12...e5 13.Nf3 Bd6 14.Be2-+) 13.Be2 (13.d3 Bd4 14.ed4 Qb5-/+) 13...Bd4 14.ed4 Bd7 15.0-0 Bb5 16.Qc1 0-0 17.Na3 Bd7 18.Nc2 Ra8 19.f3 Ne8 20.Qb2 b5 21.Ra1 Qd8 22.Nb4 Nc7 23.d3 Ra1 24.Qa1 Qa8 25.Qa8 Na8 26.dc4 bc4 27.Bd1 Nb6 28.Kf2 Ba4 29.Ke2 Kf8 30.Ba4 Na4 31.Kd2 Ke8 32.Nc6 f6 33.h4 Kd7 34.Nb4 Kd6 35.g3 e5 36.g4 g6 37.Nc2 f5 38.gf5 gf5 39.de5 Ke5 40.Nd4 h5 41.Ne2 Nc5 (better is 41...f4!? 42.Nd4 Nc5 43.Nc6 Kd6-+) 42.Ke3-/+ Ne6 43.f4 Kd6 44.Ng3 Ng7 45.Kd4 Ne6 46.Ke3 d4 47.cd4 c3 48.Nf5 Kd5 Exerts pressure on the isolated pawn 49.Kd3 Nf4 50.Kc3 Ke4 51.Ng7 Ne2 ½–½. Hal1958 – Matu, playchess.de, 2005.

9.Nc3 0-0 10.Qb1 (10.Be2 e5+=) 10...Nbd7 11.Ne2 (11.Qa2 Nb6+=) 11...b6 (11...e5 12.Ng3-/+) 12.Ng3+= Bb7 (12...e5 13.Nf5 Bc7 14.Be2+=) 13.Be2 Qc7 14.0-0 Ra8 15.Qb2 (15.d3 e5+=) 15...Bf8 (15...c4 16.Re1+=) 16.h3 (16.Re1 Ne4+=) 16...Qb8 (16...Bd6 17.Kh2-/+) 17.Nh2 (17.Qc3 Bd6-/+) 17...Qa7 (17...Ra4 18.Nf3-/+) 18.Ng4 Qa2 (18...Ng4 19.Bg4 Qa2 20.Rb1+=) 19.Qc1 (19.Nf6 Nf6 20.Qc1 Be7+=) 19...Ra5 (19...Ng4!? 20.hg4 Bd6-/+) 20.Nf6= Nf6 21.Bf6 gf6 22.Nh5 Be7 23.d3 (23.d4 Qa3=) 23...Qa3 24.Qd2 (24.Qe1 Qb2= (worse is 24...Rb5 25.f3 Kf8 26.Qg3+/–)) 24...Qb4 (24...Qb2 25.d4 Ra2 26.dc5 bc5 27.e4+=) 25.c3 (25.Qb4 cb4 26.d4 Bc8=) 25...Qb5 (25...Qh4 26.c4=) 26.e4 The mate threat is Qh6 26...Qe8 27.Qf4 (27.Qh6 Qf8 28.Nf6 Bf6 29.Qf6 de4 30.Qg5 Kh8 31.Qe5 Kg8 32.de4 Ra8+/–) 27...Qf8 (27...Qd8 28.Qg3 Kf8 29.Qg7 Ke8 30.Bg4+=) 28.Rb1+= Bd8 (28...Kh8 29.ed5 Bd5 30.Nf6 Bf6 31.Qf6 Qg7 32.Qd8 Qg8 33.Qg8 Kg8 34.c4+/– (34.Rb6?! Ra1 35.Kh2 Ra2+=)) 29.c4 (29.Nf6 Bf6 30.Qf6 Qd6+/–) 29...Ra2 (29...de4 30.de4 h6+=) 30.Rb3 (30.ed5!? e5 31.Qf5+/–) 30...Kh8 (30...dc4 31.dc4 Kh8 32.Bd3=) 31.Bf3 de4 32.Be4 Be4 33.de4 Rc2 34.Rg3 Rc4?? 35.Nf6+- Rd4 36.Qh4 Qg7 37.Rg7 (37.Rg7 Rd1 38.Kh2 Bc7 39.Rg3 Bg3 40.Qg3 Rd8 41.Nh5 Rg8 42.Qe5 f6 43.Qf6 Rg7 44.Qg7#) 1–0. Lerch,Reinhold – Steinmueller,I, corr DDR–Cup, 1984.

9.Nc3 e5 10.Ne2 e4 11.Ne5 -/+.

9.c4 b6 10.d4 Bb7 (10...Nbd7 11.dc5 Nc5 12.cd5 ed5 13.Ne5=) 11.dc5= Bc5 12.Be2 0-0 13.cd5 Nd5 14.0-0 Nd7 15.Nbd2 Be3 (15...Qe7 16.Nc4=) 16.fe3 Ne3 17.Qe1 Nf1 18.Bf1 Bd5 19.Bd4 f6 20.Bd3 Qc7 21.Qb1 h6 22.Be4 Qd6 23.Qc2 Nc5 24.Bd5 Qd5 25.Qg6 Nb3 26.Qe4 (26.Nb3!? Qb3 27.Kf2=+) 26...Qe4-/+ 27.Ne4 Nd4 28.Nd4 f5 29.Nc3 Kf7 30.Kf2 Ra8 31.Ke3 g5 32.Nf3 Ke7 33.Ne5 Kd6 34.Kd4 Ra1 35.g3 (35.Nf7 Kd7-/+) 35...Rh1 36.Nc4 (36.g4 Rh2 37.gf5 ef5 38.Nc4 Kc7 39.Nd5 Kd8-+) 36...Kc7-+ 37.Ke5 Re1 38.Kd4 h5 39.Na4 (39.Kd3!?-/+) 39...Re2-+ 40.Ncb6 (40.h3 g4 41.h4 Rf2-+) 40...f4 41.Nc4 (41.gf4 gf4 42.Nc4 f3 43.b6 Kb8-+) 41...f3 42.Kd3 Re1 43.b6 Kc8 44.Nd2 f2 45.Nc3 f1Q 46.Nf1 Rf1 47.Ne4 g4 48.Kd4 Rb1 0-1. Panza (2595) - Barnaby_Rudge (2620), ChessWorld.net, 2011.

9.c4 b6 10.Be2 Bb7 11.0-0 0-0 12.d4 Qc7 (12...Nbd7 13.cd5 ed5 14.dc5 bc5 15.Bb2+=) 13.Nbd2 (better is 13.dc5!? Qc5 14.cd5 Bd5 15.Nc3=) 13...cd4-/+ 14.ed4 Ne4 15.h3 Nd2 16.Nd2 Nd7 17.Qb3 Rc8 (17...Bh2 18.Kh1 Bf4 19.Bc3-/+) 18.g3+= Nf6 19.Bb2 h5 20.h4 dc4 21.Bc4 (21.Nc4 Qd8=) 21...Ba8 22.f4? (better is 22.Re1+=) 22...Qb7-+ 23.Kf2?? (23.Nf3 Ne4 24.Be6-+) 23...Ne4 24.Ne4 Qe4 25.Qd3 (25.Qc3 Qg2 26.Ke1 Rc4 27.Qc4 Qb2 28.Rg1-+) 25...Qg2 26.Ke3 White prepares the advance f5 26...Qb2 (better is 26...Bd5 27.Bb3 Qb2 28.Rf2 Qc1 29.Qd2 Qc3 30.Qc3 Rc3 31.Kd2 Rb3 32.Rf1-+) 27.f5 (27.Qe2 Qc3 28.Bd3-+) 27...ef5 28.Bf7 Kh8 29.Rb1 Qg2 30.Qf5 Rc3 31.Qd3 Rd3 32.Kd3 Be4 33.Kc3 Qc2 0–1. Svitek,Volker (2140) – Lantzsch,Christian (2210), Hessenliga, 2006.

9.c4 b6 10.Be2 Bb7 11.0-0 Nbd7 12.d4 0-0 13.Nbd2 Ne4 (13...cd4 14.Nd4 Qc7 15.f4=+) 14.cd5 ed5 15.dc5 Ndc5 16.Nb3 Qd7 17.Nbd4 Bb8 18.Nd2 Qd6 19.f4 Qd7 20.Bg4 f5 21.Nf5 Rf5 22.Ne4 Ne4 23.Qd4 Be5 24.Qb6 Ba1 25.Bf5 Qf5 26.Ra1 (26.Qd8 Qf8 27.Qf8 Kf8 28.Ra1 Ke7+=) 26...Qc8+= 27.h3 h5 (27...Qc3 28.Rb1 Nc5 29.Qd8 Kf7 30.Qc7 Ke6 31.e4 Qd4 32.Kh2 de4 33.Rc1+/-) 28.Ra7 (better 28.Kh2+/-) 28...Qc1?? (28...Ng3 29.Kf2 h4 30.Ra1=) 29.Kh2 Qe1 30.Qg6 Nc5?? (better 30...Qe3 31.Qe8 Kh7 32.Qh5 Kg8 33.Qe8 Kh7 34.Rb7 Qf4 35.Kg1 Qe3 36.Kh2 Qf4 37.Kh1 Qc1 38.Kh2 Qf4=) 31.Qe8+- Kh7 32.Qh5 Kg8 33.Rb7! (33.Rb7 Nb7 34.Qd5 Kh7 35.Qe4 Kh8 36.Qb7 Qe3 37.Qc7+-) 1-0. BeepBeepImAJeep (2735) - ChArLiE_WaFfLeS (2340), lichess.org, 2016.

9.d4 c4!? -/+.

9.d4 cd4 10.ed4 Qa5 11.Bc3 Qb6 12.Be2 =.

9.d4 cd4 10.ed4 Qa5 11.Nc3?? Ne4-+ 12.Bd3 Bb4 13.0-0 Nc3 14.Qc1 Ne4 15.Be4 de4 16.Ng5 f6 17.Ne4 0-0 18.Qf4 Nd7 19.Ng3? Qb5 20.Qh4 Qg5 21.Qe4 Nb6 22.d5 Nd5 23.h4 Qf4 24.Qe2 Nc3 25.Qc4 Qc4 26.h5 b6 (27.h6 Ne4 28.hg7 Kg7-+) 0–1. toll – zerdeja01 (1605), ICC, 2003.

9.d4 cd4 10.ed4 Ne4 =+.

9.d4 cd4 10.Bd4 Nbd7 =.

9.Be2 0-0 10.0-0 Qb6 11.c4 Bd7 (11...Nbd7!?=) 12.Bf6+= gf6 13.d4 dc4 14.Bc4 Bb5? (14...cd4 15.Nd4 e5 16.Nc6+=) 15.Bb5?? (better is 15.Qb3+-) 15...Qb5= 16.dc5 Qc5 17.Qd4 (17.Nbd2 f5+=) 17...e5 (17...Qd4 18.Nd4 Nc6 19.Nc6 bc6 20.Rc1-/+) 18.Qc5 (18.Qh4!?=) 18...Bc5+= 19.Nc3 Rd8 20.Ne4 Be7 21.Rb1 f5 (21...b5!?+=) 22.Ng3= f4 23.Nf5 (23.Rb7? fg3 24.hg3 Rd1 25.Kh2 Nd7-+) 23...Bf6 24.e4 Na6 25.Nh6 Kg7 26.Ng4 b5 (better is 26...Nc5!?-/+) 27.Nfe5= (worse is 27.Nf6 Kf6 28.g3 b4-/+) 27...Be5 28.Ne5 b4 29.f3 Rb8 30.Nd3 Attacking the isolated pawn on b4 30...Kf6 31.Nf4 Ke5 32.g3 Kd4 33.Kf2 b3 34.Ke2 Kc3 35.Kd1 Nc5 36.Nd5 Kd4 37.Kd2 Ra8-/+ 38.h4? Ra2-+ 39.Ke1 Nd3?? 40.Kd1= b2 41.Kc2 Ra1 42.Rb2 Nb2-/+ 43.Kb2 Rf1 44.f4 f5 45.Nf6? fe4 46.Nh7 e3 47.Ng5 e2 0–1. Hal1958 – Mosselman, playchess.de, 2004.

9.Be2 0-0 10.0-0 Nbd7 11.d4 c4 12.Nbd2 Qa5 13.e4 Bb4 (worse is 13...Qb5 14.e5+/–) 14.e5 Ne8 15.Bb2 Nc7 16.Qc1? (16.b6 Nb6 17.Nb1 Bd7-/+) 16...Nb5 (16...c3 17.Nb3 cb2 18.Qb2-+) 17.Rd1? (better is 17.Ba1-/+) 17...c3-+ 18.Nb3 (18.Qa1 Nd4 (18...cd2 19.Qa5 Ba5 20.Bb5+=; 18...cb2?! 19.Qa5 Ba5 20.Bb5-/+) 19.Nd4 cb2 (19...cd2?! 20.Qa5 Ba5 21.Nf3-/+) 20.Qa5 Ba5-+) 18...cb2 19.Qb2 Qa3 20.Qa3 Na3 21.Ra1 (21.Rc1 Bc3-+) 21...Nc2 22.Ra4 Nb6 23.Ra2 (23.Ra7 Bc3-+) 23...Na3 24.Nc5 Nbc4 25.Bc4 Nc4 26.Ra4 Bc5 27.dc5 Bd7 28.Ra7 Bc6 29.Nd4 (29.Kf1 f6 30.ef6 Rf6-+) 29...Ne5 30.Kf1 Nd3 31.Nb3 e5 32.Ke2 Nf4 33.Kf1 d4 34.g3 Ne6 35.Ke2 Bd5 (35...Bd5 36.Nd2 Nc5-+) 0–1. Mittelstaedt,Joel – Niedermayer,Julian Andi, GER–chT U12 Leipzig, 2008.

9.Be2 Nbd7 10.0-0 =+.

9.Be5 0-0 =.

9.Be5 Be5 10.Ne5 Nbd7 11.Nd7 Bd7 =+ (< 11...Kd7 12.Be2+=).

9.Bf6 Qf6 10.c4 Nd7 11.Nc3 Nb6 12.Qb3 Qg6 13.cd5 ed5 14.Qa2 0-0 15.h4 Re8 16.h5 Qf5 17.Qa7 Bc7 18.h6 d4 19.Nd1 g5 20.Rh5 f6 21.Be2 de3 22.de3 Qg6 23.Nd2 Qf5 (23...Rd8 24.Qa2 Kh8 25.Kf1-/+) 24.Nc3 Kh8 25.Bf3 (better is 25.Qa1!?-/+) 25...Qc2-+ 26.Nce4? (better is 26.Nd1-+) 26...Qc1 27.Ke2 (27.Bd1 Bg4 28.f3 Bh5 29.Qb7-+) 27…Bd7 (28.Nd6 Ra8-+) 0–1. kamret (2220) – zinga (2345), GameColony.com, 2003.

10.Qb3 Nbd7 11.d3 dc4 12.dc4 b6 13.Be2 Bb7 14.0-0 Qc7 15.h3 e5 16.Nc3 Re8 17.Nd5 Nd5 18.cd5 e4 19.Nd2 Be5 20.Bc4 Qd6 21.Be5 Re5 d5 seems the pivot of the position 22.Ra1 Nf6 Will d5 fall? (worse is 22...Rd5 23.Ne4 (23.Bd5?! Bd5 24.Qd1 Qe5+=) 23...Qe5 24.Ra7 (24.Bd5 Qa1 25.Kh2 Qe5 26.Ng3 Bd5-+) 24...Qe4 25.f3+- (25.Rb7? Rg5 26.g4 Qb7-+)) 23.Ra7 Re7 (23...Bd5?? 24.Bd5 Kh8 25.Bc6+-) 24.Qa4 Kf8 (24...Bd5?? 25.Re7 Qe7 26.Bd5+-; 24...Nd5?? 25.Ra8 Ba8 26.Qa8 Re8 27.Qe8 (27.Qd5? Qd5 28.Bd5 Rd8-+) 27...Qf8 28.Qf8 Kf8 29.Bd5+-) 25.g4 h6 26.Bb3 (26.Qa2 A) worse is 26...Nd5 27.Rb7 Rb7 28.Ne4+- (28.Bd5 Rd7-+); B) 26...Qe5-/+) 26...Bd5 27.Nc4 Ra7 28.Qa7 Qe6 29.Qa2 g5 30.Kg2 h5 31.gh5 Nh5 32.Nd2 Bb3 33.Nb3 Nf6 34.Qa8 Kg7 35.Nd2 Kg6 36.Qa4 Kf5 37.Nc4 Nd7 (37...Nd5 38.Qd1-+) 38.Nd2 (38.Qc2!? g4-+) 38...Qd5 39.Nc4 Ke6 40.Qc2 f6 41.Qc3 Qd3 42.Qc1 (better is 42.Qd3 ed3 43.Nb2-+) 42...Kd5 43.Na3 Ne5 44.Qb2 Ke6 45.Nc2 (45.Nb1-+) 45...Nf3 46.Qb1 (46.Qa2 Kf5 47.Nd4 cd4 (47...Nd4?! 48.Qd5 Kg6 49.Qg8 Kh6 50.Qh8 Kg6 51.Qg8 Kf5 52.Qd5 Kg6 53.Qg8=) 48.Qd5 Ne5 49.ed4 Qf3 50.Kf1 Qh3 51.Kg1 Qd3-+) 46…Qc2!! (46...Qc2 47.Qc2 Ne1 48.Kf1 Nc2-+) 0–1. Ilushenko,Yuru – Rudyak,Ivan, Stavropol–6, 2000.

10.Qc2 Nbd7 11.Bd3 b6 12.h4 (12.cd5 ed5 13.0-0 Re8=) 12...Bb7 13.Rh3 Qa8 14.Bb2 e5 15.cd5 Bd5 16.Nc3 e4 17.Nd5 Qd5 (worse is 17...ed3 18.Nf6 Nf6 19.Qd3+=) 18.Bc4 Qf5 19.Ng1 Be5 20.d4 cd4 (20...ed3!? 21.Bd3 Qg4-/+) 21.ed4+= Bd6 22.Ne2 Ng4 23.Rf3 (23.Nc3 Ndf6+=) 23...Qg6-/+ 24.h5 Qh5 25.Qe4 Ndf6 26.Qf5 (26.Qc6!? Qh1 27.Kd2-/+) 26...Qh1-+ 27.Kd2 Qg2 28.Kc2? (better is 28.Nc3-+) 28...g6 29.Qd3 Nf2 (29...Rc8 30.Rf6 Nf6 31.f3-+) 30.Qb3? (30.Nf4 Bf4 31.Qe2-+) 30...N2e4 31.d5 (31.Kd1-+) 31...Rc8 32.Rc3 (32.Qd3 Rc4! 33.Qc4 Qf3 34.Bf6 Nf6-+) 32...Nc3 (32...Nd5 33.Bd5 Qe2 34.Kb1 Qe1 35.Rc1 Rc1 36.Bc1 Nd2 37.Kc2 Nb3 38.Bb3 Qe4 39.Kb2 Be5 40.Ka2-+) 33.Qc3 Qe4 (33...Qg4 34.Kd1 Be7 35.d6 Rc4 36.Qd2-+) 34.Kb3 Be5 35.Nd4 Nd5 36.Qh3 (36.Qd3 Qd3 37.Bd3-+) 36...Rc4 37.Kc4 Ne3 38.Kb3 Qd5 (38...Qd5 39.Kc3 Qd4 40.Kb3 Qc4 41.Ka3 Bd6#) 0–1. Sandipan,C (2420) – Barua,D (2555), ch–IND, Mumbai IND, 2000. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.e3 Bd6 9.c4 0-0)

10.Qc2 Nbd7 11.Be2 dc4 (11...Nb6 12.d3=) 12.Bc4 (12.Na3 Nb6=) 12...Nb6 13.Ng5 (13.Be5 Nc4 14.Qc4 b6+=) 13...e5+= (13...Nc4?? 14.Bf6 g6 15.Bd8 Ne3 16.fe3 Rd8 17.Ne4+-) 14.f4 (14.Na3!?+=) 14...Nc4-/+ 15.Qc4 ef4 16.Qc2 (16.0-0 fe3 17.Bf6 gf6 18.Ne4 ed2 19.Nbd2-/+) 16...g6 (16...fe3 17.Bf6 ed2 18.Kd2 Bf4 19.Ke2 Re8 20.Kf3 Qd5 (worse is 20...Qf6 21.Qh7 Kf8 22.Ne4 Re4 23.Qe4 Bg5 24.Ke2-+) 21.Ne4 Bd6-+) 17.Qc3= Be7 18.Ne4 Kg7 (18...Ne4 19.Qh8 A beautiful mate combination) 19.0-0+= (19.Nc5? Qd5 20.Nd3 Qg2-+) 19...Bf5 20.Nc5 (better is 20.Rf4!? Be4 21.Re4+=) 20...Qd5+= 21.Nb3 (21.e4 Qc5 22.Qc5 Bc5 23.d4 Ne4 24.dc5 f6 25.c6 bc6 26.bc6-/+) 21...Rc8-/+ (21...Qb5?! 22.Nd4 Qd7 23.Nf5 (23.Rf4? Bb1 24.Qb3 Bf5-+) 23...Qf5 24.Qc7+= (worse is 24.ef4 Rd8=)) 22.Qe5 Qe5 (22...Qb3 23.Qe7 Qe6 24.Qe6 (worse is 24.Qb7 fe3 25.Qa6 Qa6 26.ba6 Ra8=) 24...fe6 25.ef4+/–) 23.Be5 fe3 24.de3 Bd3 25.Re1 (25.Rd1 Bb5 26.Nc3 Bc6-/+) 25...Bb4 (25...Bb5 26.Nc3 Bc4 27.Nd2-/+) 26.Rd1 Bb5 27.Nd4 Ba6 (27...Bc4 28.Nd2 Bd5 29.e4-/+) 28.Nd2 Bd2 29.Rd2 Kf8 30.Nb3 Ng4 31.Bd4-/+ Re8 32.Nc5 Rc8 33.h3= Nh6 34.Nd7 Ke7 35.Nf6 Nf5-/+ 36.Bb2 Ne3 37.Rd4 Rc4 38.Rd7 Ke6-+ 39.Rd8 Bb5 40.Nh7?? Rc2 41.Ba3 Rg2 42.Kh1 Bc6 43.Nf8 Kf5 44.Bd6 Rg3 45.Kh2 Nf1# 0–1. Staszewski,M – Buczinski,Henryk, Katowice Poland, 1968.

10.d3 Nbd7 11.Nbd2 b6 12.Be2= Bb7 13.Qc2 Qc7 14.h3 e5 15.e4 d4 16.Bb2 (16.0-0=+) 16...Nh5 (16...Ra8!?-/+) 17.Ne5= Ne5 (17...Be5 18.Bh5) 18.Bh5 Qe7 (18...f5 19.f4 Nf7 20.e5+/–) 19.Be2 (19.0-0 Ra8+=) 19...Qg5 20.g4 f5 (20...Qf6 21.Bc1=) 21.Nf3 (21.h4 Qe7 22.gf5 Rf5 23.h5=) 21...Nf3= 22.Bf3 fe4 23.Be4 Be4 24.de4 Qf4 25.Qe2 (25.Bc1 Qf3 26.Rg1 Be5-/+) 25...Be5 26.Rg1 Qh2 27.Qf1 Rf3 28.Bc1 Qh3 29.Qh3= Rh3 30.f4 Bc7 31.Bd2 Kf7 32.Kf2 Ra3 33.Ke2 Ra4 34.Rc1 Ra2 35.Rf1 Ra4 36.e5 Ra3 37.Rf3 Rf3 38.Kf3 g5 39.f5 Be5= 40.Bg5 Kg7? 41.Ke4 Bf6 42.Bf4 Bd8 43.g5+/– Kf7 44.Kd5 Ke7 45.Kc6 Kf7 46.Kd7 Be7 47.Kc7 (47...Bg5 48.Bg5+-) 1–0. Mroz,Antoni – Guziec,Krzysztof, corr 1. AMM Poland, 1992.

10.d3 Nbd7 11.Nbd2 e5 12.Be2 =+.

10.d3 Nbd7 11.Be2 b6 12.0-0 Qc7 13.Nbd2 Bb7 14.Qc2 Ra8 15.h3 e5 16.e4 d4 17.Bb2 Nf8 18.Ra1 Ne6 19.Ra8 Ba8 20.g3 Qa7 21.h4 (21.Nh4 Qd7 22.Ndf3 Bb7=) 21...h6 22.Bf1 Bc7 (22...Qe7 23.Qa4 Bb7 24.Qa7=+) 23.Bh3= Qa2 24.Be6 fe6 25.Qc1 Bb7 26.Qa1 Qa1 27.Ba1 Kf7 28.Bb2 Ng4 29.Kg2 Kg6 30.Nh2 Nh2 31.Kh2 Bc8 32.Nf3 Bd7 33.g4 Kf7 34.Bc1 Ke7 35.h5 Kd6 36.Kg3 Be8? (better 36...Bd8!?+=) 37.Ne5!+- 1-0. marekt - drink1966, ChessWorld.net, 2022.

10.d3 Re8=+ 11.Be2 dc4 (11...e5!?=+) 12.dc4= e5 13.Ne5 Qa5 (13...Be5 A pinning theme 14.Qd8) 14.Bc3+= Qc7 15.Nf3 Ne4 16.0-0 Bg4 (16...Be6 17.Bd3 Bg4 18.h3+-) 17.h3+- (17.h3 Bf5 18.Bd3+-) 1–0. Bivens,William – Helgesen,Helge, corr 3GMM–25, 1995.

10.Bd3 Nbd7=+ Black fights for the Initiative 11.0-0 (11.Qc2 Re8=+) 11...e5-/+ 12.Be2 e4 13.Ne1 Nb6 14.Na3 Be6 15.d3 Bc7 (15...ed3 16.Qd3 dc4 17.Qc2=+) 16.g3 (better 16.cd5!? Qd6 17.g3 Nbd5 18.Nc4=+) 16...dc4-/+ 17.Bf6 Qf6 18.dc4 (18.de4!? Qb2 19.Nec2-/+) 18...Bh3-+ 19.Ng2 Qb2 20.Nb1 Rd8 21.Qc1?? (better 21.Qe1-+) 21...Qe2 22.Nf4 (22.Re1 Qc4 23.Nf4-+) 0-1. petrobbo (2060) - anotheridiot (2210), ChessWorld.net, 2019.

10.d4 Ne4 11.Nbd2 cd4 12.Bd4 (< 12.Nd4 Bb4 13.N4b3 dc4 14.Bc4 Nd2 15.Nd2 Qa5-/+) 12...Bb4 13.Bd3 Qa5 14.Ke2 Nd2 15.Nd2 dc4 16.Nc4 Qb5 17.Ne5 Qa5 18.Qc2 Nc6 19.Nc6 Qh5 20.f3 bc6 21.Qc6 e5 22.Bb2 (22.Qd5 Bf5 23.Bf5 Qf5-/+) 22...Rd8 23.h4 Bf5 (23...e4 24.Qe4 Ba6+=) 24.e4+/– Bc8 25.Qc7 Re8 26.Qb6 Be7 27.Qb5 f6 28.Rc1 Kh8 29.Qc6 Qf7 30.Qc8 Rc8 31.Rc8 Bf8 32.Bc4 Qe7 33.Bc1 h6 34.Be3 Qa3 35.h5 Kh7 36.Bc1 Qb4 37.Bd2 Qa4 ½–½. marekt – miquelstone, ChessWorld.net, 2003.

10.cd5 ed5 11.Be2 Bf5 12.0-0 Nbd7 13.d3 Qa5 14.Bf6 (14.Nc3 Ra8=+) 14...Nf6-/+ 15.d4 (15.e4!? de4 16.de4 Ne4 17.Qd5=+) 15...c4-+ 16.Nc3?? (better is 16.Nh4 Bd7 17.Qc2-+) 16...Qc3 17.Ne5 (17.Qa1 Qb4-+) 17...Be5 18.de5 Qe5 19.Qa4 Ne4 20.f3 Nc5 21.Qb4 b6 22.e4 de4 23.fe4 Be4 24.Qc4 Rd8 25.Qf7 (25...Kh8 26.Qf8 Rf8 27.Rf8#) 1–0. ida1 – bskar, Live Game Caissa's Web, 2005.

10.Be2 Qa5 11.0-0?? (better is 11.Bf6 gf6 12.cd5 ed5 13.Qc2+=) 11...Qa1-+ 12.Qb3 (12.d4-+) 12...b6 (better is 12...Qa5-+) 13.Na3+/– dc4 14.Bc4 (14.Bc4 Qf1 15.Bf1+/–; 14.Ra1?? cb3 15.Nc4 Bc7-+) 1–0. Janek – ijmagen, internet, 2017.

10.Be2 b6 11.0-0 Bb7 12.Nc3 Qc7 (12...dc4 13.Bc4 Qc7 14.h3=+) 13.g3 (13.cd5 Nd5 14.d4 Nc3 15.Bc3 Bf3 16.Bf3 Bh2 17.Kh1 Bd6=+) 13...Rd8 14.cd5 Nd5 15.d4 (15.Nd5 Bd5 16.Qc2 Qb7=+) 15...cd4 (15...Nc3 16.Bc3 Nd7 17.Qd3=+) 16.Nd5 (16.Qd4 Nf6 17.Qh4 Be7=) 16...Bd5 (< 16...ed5 17.Qd4 f6 18.Bd3+=) 17.Qd4 f5 18.Nd2 Bc5 19.Qc3 Qe7 20.Rd1 Ba8 (20...Qg5 21.Nc4=+) 21.Qb3 (21.Qe5 Bd6 22.Qc3 Bd5=) 21...Kf8 (21...Bb7 22.Be5=) 22.Nc4 Rd1 23.Qd1 Ke8 24.Be5 Qb7 25.f3+/– Nd7 26.Bd6 Qd5+= 27.Bc5 Qc5 28.Qd6 Qd6= 29.Nd6 Ke7 30.Nc4 Bd5 31.Nd2 Kd6 32.Kf2 Kc5 33.e4 Ba2 34.ef5 ef5= 35.f4 Nf6 36.h3 Ne4 37.Kf3?? Nc3 38.Bd3-/+ Bd5 39.Ke3 g6 40.Nf3 Bf3 41.Kf3 Nb5 42.g4 Nd4 43.Ke3 b5 44.gf5 Nf5 45.Ke4 b4 46.Ke5 Ng3 47.Kf6 Nh5 48.Kg5 h6 49.Kg4-/+ Nf6 50.Kh4 Nd5 51.Bg6 Nf4 52.Bb1 Kd4 53.Bh7 b3 54.Kg4 Nd3 55.Kf3 b2 (56.Bd3 Kd3-+) 0–1. Sommer – Kern, Hessen clubgame, 1995.

10.Be2 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Qc7 14.g3 Ne4 15.Qc2 (15.cd5 Nd2 16.Nd2 ed5 17.dc5 bc5=) 15...f5 (15...cd4 16.Bd4 Ndf6 17.Ra1=+) 16.Ne4 fe4 (16...de4 17.Ng5 Re8 18.d5 ed5 19.cd5=) 17.Ng5= Re8 (17...cd4 18.Bd4 (worse 18.ed4 Re8=+) 18...Re8 19.f4=+) 18.Bh5 g6 (18...Re7!? 19.Bg4 Nf8=) 19.Bg4+- Nf8 20.dc5 bc5 (20...Qc5 21.Qc3 d4 22.Qd4+-) 21.Qc3+- e5? (better 21...d4 22.ed4 cd4 23.Qd4 e5+-) 22.cd5 Bd5 23.Rd1 Ba2 (23...Ne6 24.Nh7 Kh7 25.Rd5 Ng5+-) 24.Qd2 h6 (24...Bc4 25.Qd6 Qd6 26.Rd6 h5+-) 25.Qa2 Kg7 (25...c4 26.b6 Qb7 27.Qc4 Kg7 28.Rd6 hg5 29.Qc7 Re7 30.Bd7+-) 26.Ne4 Be7 27.f4 Bd8 28.Nd6 Re7 29.Be5 Re5 30.fe5 h5 31.Ne8 (31.Ne8 Kh7 32.Nc7 Be7 33.Qf7 Kh6 34.Qe7 c4 35.Qf8 Kg5 36.Qf4) 1–0. DEFFM – GuestMFBB, freechess.org, 2019.

10.Be2 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 cd4 14.Bd4 (14.Nd4 Qc7 15.f4 Ra8+=) 14...Qc7 15.h3 (15.Bf6 Nf6 16.cd5 Bd5+=) 15...e5 16.Bb2 e4 17.Nd4= Bh2 (17...Bb4 18.Nc2 Ba5 19.Na3=) 18.Kh1 Be5 19.Qb1 Nc5 (19...Ra8 20.Rc1=) 20.cd5 (20.Rc1 Rd8=) 20...Bd5 (20...Nd5 21.Rc1=) 21.Rd1 (21.Nc4 Bc4 22.Bc4 Na4=) 21...Na4 (21...Rd8 22.Nc6 Bc6 23.Be5 Qe5 24.bc6=) 22.Nc4 (22.Rc1 Qd7=) 22...Nb2 (22...Bc4 23.Rc1=) 23.Qb2 Rc8 (23...Bc4 24.Rc1=) 24.Ne5 Qe5 25.Rc1 Rc5 26.Qa3 Rc1 27.Qc1 Ne8 (27...Qb8 28.Nf5 Kh8 29.Ne7+=) 28.Bg4 (28.Qc8 Kf8+=) 28...Qc7= 29.Nc6 (29.Qc7 Nc7 30.Kh2 Kf8=) 29...h6 30.Be2 Kh8 31.Kg1 f6 32.Qc2 Nd6 33.Qd1 Bf7 34.f3 Be6 35.Kh2?? (35.Kh2 Nb5 36.f4 Qc6 37.Qa4-+; better is 35.fe4 Ne4 36.Qd4=). Ringsborg,Allan (2260) – Simmelsgaard,Jens Jorgen (2120), corr DEN–ch Denmark, 2000.

10.Be2 b6 11.d4 Nbd7 (11...Bb7 12.0-0=) 12.0-0 (12.dc5 Nc5 13.Bf6 Qf6 14.cd5 Rd8=) 12...dc4 (12...Bb7 13.cd5 Bd5 14.Nc3=) 13.Nbd2 cd4 (13...Bb7 14.Nc4 Bc7 15.dc5 Nc5 16.Qd8 Rd8 17.Bf6 gf6 18.Ra1=) 14.Nc4+= Be7 (14...Bc5 15.Bd4 Qc7 16.Nfe5+=) 15.Nd4 Nc5 (15...Qc7!?+=) 16.Nc6+- Qc7? (better 16...Qe8!?+-) 17.Be5+- (17.Ne7?! Qe7 18.Nb6 Bb7+-) 17...Qa7 (17...Qb7 18.Ne7 Qe7+-) 18.Na7 (18.Na7 Bb7 19.Bf6 Bf6 20.Nb6+-) 1–0. Janek – Murad, internet free game, 2017.

10.Be2 dc4 11.0-0 =.

10.Be2 Bd7 11.0-0 Qa5 12.Nc3 (12.Bf6 gf6 13.cd5 Bb5 14.Bb5 Qb5+=) 12...dc4 13.Bc4 Ne8 (13...Qc7 14.Qb1=) 14.Qc2 Nc7 Increasing the pressure on the isolated pawn on b5 (14...Nf6 15.Ng5 h6 16.Nce4 Ne4 17.Ne4+/-) 15.Ne4 (15.Ng5 f5+/-) 15...Be7+= (15...Nb5?? 16.Nfg5 Bh2 17.Kh2+-) 16.Nfg5 (better 16.Rb1+=) 16...Nb5?? (better 16...f5 17.Qb2 Rf6+=) 17.Nf6! Bf6 (17...gf6 18.Qh7 The nicest combinations are those leading to mate) 18.Qh7 A classical mating theme.... 1-0. onur604 (2320) - LadislaoJJ (2010), lichess.org, 2020.

10.Be2 Bd7 11.0-0+= b6 (11...dc4 12.Na3+=) 12.Bf6 (12.Qa4 Bc8+=) 12...Qf6 13.Nc3 dc4 14.Qc2 Qe7 15.Bc4 (15.Ra1 Bc8+=) 15...Bc8 16.Ra1 (16.Ne4 Nd7+=) 16...Nd7= 17.Qe4 Nf6 18.Qc6 Qc7 19.d4 cd4 (19...Bb7 20.Qc7 Bc7 21.Ra7+=) 20.Qc7 Bc7 21.Nd4 Ng4 (21...g6 22.Nc6+=) 22.g3 Bb8? (better is 22...Ne5!? 23.Be2 Re8+=) 23.Na4 Bb7 (23...Ne5 24.Nb6 Bb7 25.Bf1+-) 24.Ne6 Re8 25.Nd4 Bc7 26.Nc3 Ra8 27.Ra8 Ba8 28.Bd5 Bd5 29.Nd5 Bd8 30.Kg2 Nf6 (30...Kf8 31.e4 Nf6 32.Nc3+-) 31.Nf6 Bf6 32.Kf3 Kf8 33.Ke4 Ke8 34.Kd5 Kd7? 35.Nc6 Bc3 36.Ne5 Be5 37.Ke5 f6 38.Kd5 f5 39.f3 g6 40.e4 h6 41.e5 g5 42.g4 f4 43.h3 (43.h3 h5 44.gh5 Ke8 45.Kd6 Kf8 46.e6 Kg8 47.e7 Kf7 48.Kd7 g4 49.e8Q Kg7 50.Qg6 Kf8 51.h6 gh3 52.Qg7#; 43.e6 Kd8 44.h3 h5 45.gh5 Ke7 46.Ke5 Kf8 47.Kd6 Ke8 48.e7 g4 49.hg4 Kf7 50.h6 Kg6 51.e8Q Kh6 52.Qh8 Kg5 53.Ke5 Kg6 54.Ke6 Kg5 55.Qf6#) 1–0. wiking – honor_me, internet, 2009.

10.Be2 Qe7 11.0-0 Nbd7 12.d4 cd4 13.Qd4 dc4 (13...e5 14.Qh4=) 14.Rd1+= Bb4 (14...Bb8 15.Qh4+=) 15.Qc4 Nb6 (15...Bd6 16.Qh4+=) 16.Qh4 (16.Bf6 gf6 17.Qd4 Bc5 18.Qg4 Kh8+/–) 16...Nfd5 (16...Nfd7 17.Qe7 Be7 18.e4+=) 17.Qe7 Be7 18.Nc3 Rd8 19.Kf1 (19.Nd5 Nd5 20.e4 Nf6 21.Rd8 Bd8+=) 19...Bf6 (19...Nc7 20.Rd8 Bd8 21.Bb2+=) 20.Nd5 Rd5 21.Bf6 gf6 (21...Rd1 22.Bd1 gf6 23.Nd2+=) 22.Ke1 (22.Rc1 f5+=) 22...Kf8 (22...Rd1 23.Kd1 Nd5 24.Kc2+=) 23.Rc1 Ke8 (23...Ke7 24.e4 Rd7 25.h3+=) 24.Rc7 (24.g4 e5 25.Nd2 Ke7+/–) 24...Rd7 25.Rc5 Rd5 26.Rd5 Nd5 27.Kd2 Kd7 28.Bd3 Kd6 29.Bh7+/– Kc5 30.h4+- Kd6 31.h5 Ke7 32.h6 Kf8 33.Bd3 Bd7 34.g4 Nb4 35.Bc4 Nd5 36.g5 fg5 37.Ng5 Nf6 38.f4 Ng4 39.h7 Kg7 40.Nf7 Kh7 41.Ng5 Kg6 42.Ne6 Kf6 43.Nc5 Bc8 44.Bd5 b6 45.Na4 Bd7 46.Bc4 Ke7 47.Nb6 Be8 48.Nd5 Kd6 49.e4 Kc5 50.Be2 Nh6 51.Nc3 Nf7 52.Bh5 (52...Nd6 53.Be8 Ne8 54.Kd3+-) 1–0. Sopermi (2320) – characato (2220), ajedrez21.com, 2001.

10.Be2 Re8 11.0-0 e5 12.d4 cd4 13.ed4 e4 14.Ne5 Nbd7 15.cd5 (15.Nd7 Bd7 16.c5 Bf4=) 15...Nd5 (15...Be5?! 16.de5 Ne5 17.d6=) 16.Nc4 Bb4 17.Qb3 N7f6 18.Ne5 Be6 19.Bc4 Ba5 (19...Qa5 20.Bb2=) 20.Bb2 (20.Nc3 Nf4=) 20...Nf4 21.Be6 Re6 22.Qc2 Bb6 Attacks the isolani on d4 23.g3 Nh3 24.Kg2 Ng5 (worse 24...Bd4 25.Rd1 Nf2 26.Qf2 Re5 27.Bd4+- (27.Qd4?? Rd5-+)) 25.Rc1 Re8 (worse 25...Bd4 26.Qc8 Bb6 27.Qb7+=) 26.Qb3 Re7 27.Rc4 (27.Rd1 Qc8 28.Qa3 Qh3 29.Kh1 Re5 30.de5 h6 31.ef6 Nf3 32.Rd8 Bd8 33.Qf8 Kf8 34.fg7 Kg8 35.Bd4 Qh2) 27...Ne6 Increasing the pressure on the isolated pawn on d4 28.Qe3 (28.Qa3 Nd5-/+ (28...Nd4? 29.Bd4 Re8 30.Bb6 Qb6 31.Rc5+-)) 28...Rc7 (28...Qe8 29.Na3-/+) 29.Ra4=+ Rc2 30.Ba1 h5 31.h3 (31.Qb3 Rc1=+) 31...h4 32.Qb3 Rc7 33.Bb2 (33.Qe3!?=+) 33…hg3-/+ (33...hg3 34.Qg3 Rc2-+; 33...Bd4 34.Bd4 Nd4 35.Qd1+/-; 33...Nd4 34.Bd4 Bd4 35.Qd1+/-) 0-1. GuestJYSS – GuestQKBL, freechess.org, 2020.

10.Be2 Re8 11.0-0 e5 12.d4 e4 13.Nfd2 Qc7 14.Kh1 cd4 15.Bd4 Be5 (15...Bh2? 16.b6 Qe7 17.Kh2 dc4 18.Nc4+- (worse is 18.Bc4 Ng4 19.Kg3 Qd6 20.f4 ef3 21.Kf3 Nc6 22.Bf7 Kf7-/+)) 16.Be5 Re5 17.Nc3 Nbd7 18.Na4 dc4 19.Bc4 b6 20.h3 1–0. BlackPanther – ETC_Chess, playchess.de, 2004.

10.Be2 Re8 11.Qc2 e5 12.cd5 Nd5 13.0-0 Qb6 (13...e4!? 14.Ne1 Qh4=+) 14.Nc3 (14.Ng5 Nf6+=) 14...Nc3 15.Qc3 Nd7 16.Bc4 Nf6 (better 16...Qd8=) 17.Ng5+- Re7 18.Qb3 (18.f4!? e4 19.Qb3+-) 18...Qc7+= 19.f4! ef4 20.Bf6 (better 20.Qd3 Be5 21.Be5 Re5 22.Nf7+-) 20...gf6= 21.Ne4?? (21.b6 Qd7 22.Nh3 fe3 23.de3 Qe8=) 21...fe3 (better 21...Re4 22.Qd3 f5-+) 22.Nd6 (22.Nf6 Kf8 23.de3 Bh2 24.Kh1 Be5+=) 22...Qd6 23.de3 Qd2 (23...Be6 24.Rf3=) 24.Rd1 (worse 24.Rf6 Be6 25.Qd3 Qd3 26.Bd3 c4=+) 24...Qe3?? (24...Qa5 25.Qb2 Bg4= (25...Re3?? 26.Qf6 Re1 27.Kf2+-)) 25.Qe3+- Re3 26.Rd8 Kg7 27.Rc8 Rc3 (27...b6 28.Rc7+-) 28.Rc5 h5 29.Rc7 Kh6 (29...Rc1 30.Kf2 b6 31.Rc6+-) 30.b6 Rc1 31.Kf2 1–0. GuestKHNR – Andreycello, freechess.org, 2017.

10.Be2 Re8 11.Be5 =+.

10.Be2 h6 11.d4 b6 =.

10.Be2 h6 11.Bf6 gf6 12.cd5 ed5 13.0-0 +=.

10.Be2 h6 11.Bf6 Qf6=+ 12.Nc3 d4 (12...Qg6!?=) 13.Ne4+= Qe7 14.ed4 cd4 15.Nd4 e5 16.Nd6 Qd6 17.Nc2 f5 (17...Rd8!?+=) 18.d4+/– e4 (18...ed4 19.Qd4 (< 19.Nd4 Qb4 20.Kf1 Rd8+=) 19...Qd4 20.Nd4+/–) 19.c5 Qg6 20.Rg1 (20.0-0 f4 21.Bc4 Kh7+/–) 20...f4 (20...Rd8 21.Bc4 Be6 22.Be6 Qe6 23.g4+/–) 21.d5 (21.Bc4 Be6 22.d5 Bf7+/–) 21...f3 22.Bf1 Bh3 23.g3 Bf1+= 24.Rf1 Nd7 25.c6 Ne5 26.Qd4 Nd3 27.Kd2 bc6 28.bc6 Qg5 29.Ne3 Ra8? 30.Qe4+- Nc5? 31.Qc4 Rd8 32.Qc5 Rd5 33.Qd5 (33...Kh7 34.Qg5 hg5 35.c7+-) 1–0. Machete (2305) – sindbad (1980), ICC, 2003.

10.Be5 Be5 11.Ne5 Qa5 12.Qb3 (12.Bd3 Qc7 13.Ng4 Ne8=) 12...Nbd7 13.Nd7 Bd7 14.Be2 Ra8 15.0-0 Qa2 16.Qc3 b6 17.Qe5 (17.Re1 Ne4 18.Qc1 Qb3=) 17...dc4+= 18.Bf3 (18.Qd6 Qa5+=) 18...Rf8 (18...Re8 19.Qc7 Qa5 20.Nc3+=) 19.Qd6+= Qa7 (19...Qa5 20.Nc3+=) 20.Nc3 Bc8 (20...Qb8 21.Qb8 Rb8 22.Be2+=) 21.Be2= Ne8 22.Qf4 Bb7 (22...Qd7 23.Qc4 (worse is 23.Bc4 Qd2 24.Na4 Qa5-/+) 23...Bb7 24.Rd1=) 23.Qc4 (23.Bc4 Nf6=) 23...Nf6 (23...Qa8 24.Qg4=) 24.e4 (24.d4!?=) 24...Rd8+= 25.d3 Qa3 26.Rb1 e5 27.f3 (27.Qb3 Qb3 28.Rb3 Ra8+=) 27...Bc8-/+ 28.Qb3 Qa5 (28...Qa7 29.Rf1-/+) 29.Qb2 Bd7 (29...Qa7 30.Qc1-/+) 30.Kf1 (30.f4 ef4 31.e5 Ne8+=) 30...Ra8-/+ 31.Bd1 Be6 32.Ba4 h6 33.Bb3+= Bb3 34.Qb3 Rd8 35.Qc2 Rd4 36.Rb2 Qa1 37.Rb1 Qa7 38.Nd1 Qd7 39.Ke2 Nh5 40.g3 Qh3 41.Ke1+= f5 42.ef5 Qf5 43.Ke2 c4 44.Nb2+= cd3 45.Nd3 e4 46.Qb3 Kh7 47.fe4 Re4-+ 48.Kd2 Qh3 49.Kc3 Qh2 50.Qd5 Ng3 51.Rb2 Qh3 52.Rd2 Qe6 53.Nb4 Qe7 54.Nc6 Qa3 55.Kc2 Re3 56.Qc4 Ne4 (56...Ne4 57.Rd4 Rc3 58.Qc3 Qc3 59.Kd1 Qf3 60.Kc2 Qf2 61.Kc1 Nc3-+) 0–1. Andersson,Lars H – Bernard,Herbert, corr ICCF–Cup8/9 V161, 1990.

10.Be5 Be5 11.Ne5 Nbd7 12.Nd7 Bd7 13.Be2 +=.

11.0-0 Qa5 12.Bb2 Qa2 (12...Nb6!?=) 13.Qc2+= b6?? (better 13...Qa5+=) 14.Na3+- Bb7 15.Ra1 Qb2 1–0. GuestGQXC – GuestWVWV, freechess.org, 2019.

11.0-0 Qa5 12.Bc3 Qa2 13.d3 Nb6 14.Nbd2 Bd7 15.Qb3 Qb3 16.Nb3 Ra8 17.Na5 (17.Be5 Be7+=) 17...Ra7 18.h3 Ne8 19.Nh2 (19.Ra1 f6=) 19...Na4 20.Bd2 b6 21.Nc6 Bc6 22.bc6 Nb2 23.Bc3 (23.Rb1 Ra2 24.Nf3 dc4 25.dc4 e5=) 23...Ra2+= 24.Rb1?? (better is 24.Bb2 Rb2 25.Re1=) 24...Na4-+ 25.Be1 (25.Bg7 Kg7 26.Bf3 dc4 27.dc4 Bc7-+) 25...Re2 26.Ra1 (26.cd5 ed5 27.Nf3 Nb2-+) 26...Nb2 27.Bc3 Nd3 28.Ra8 Kf8 29.Nf3 (29.cd5 ed5 30.Bg7 Kg7 31.Re8 Nf2-+) 29...f6 (better is 29...dc4 30.Nd2 Re1 31.Nf1-+) 30.g4 (30.cd5 ed5 31.Ra3 b5-+) 30...Rf2 31.cd5 (31.Ne1 Bh2 32.Kh1 dc4-+) 31...Rf3 32.de6 Re3 0–1. madik – wghornsby, gameknot.com, 2010.

11.0-0 Qa5 12.Bc3 Qa2 13.d3 Nb6 14.Bf6 gf6= 15.Nc3 Qb2 16.Qa1 Qa1 17.Ra1 dc4 18.dc4 Be5? (better 18...Rd8=) 19.Ne5+- fe5 20.Ne4 Nd7 (20...f5 21.Nc5 Kg7 22.Rd1+-) 21.Nd6 b6?? (21...Rd8 22.Ra7 Kf8+-) 22.Ra8 f5 (22...Bb7 23.Ra7 Bg2 24.Kg2+-) 23.Nc8 Nf6 (23...e4 24.Ra7 Rc8 25.Rd7+-) 24.Nb6 Ra8 25.Na8 1–0. DEFFM – GuestZMRZ, freechess.org, 2019.

11.0-0 Qa5 12.Bc3 Qa2 13.d3 e5 14.Nh4=.

11.Nc3 Nb6 12.d3= dc4 13.dc4 Qe7 14.Qc2 e5 15.Nd2 (15.0-0 e4 16.Nd2 Qe5+/–) 15...Bg4 (15...Rd8 16.0-0=+) 16.f3 (16.Nd5 Nbd5 17.Bg4 Ne3 (17...Ng4?! 18.cd5 Qh4 19.g3=+) 18.fe3 Ng4-/+) 16...Bh5 (16...Ra8 17.0-0 Be6 18.f4=+) 17.0-0= Bb8 18.Rd1 Ba7 (18...Rd8!?=) 19.e4+= Qd6 20.Nf1 Qc7 21.Ne3 Bg6 22.Ncd5 Nbd5 23.Nd5 Nd5 24.Rd5 f6 25.Qd2 Bf7 (25...Ra8 26.Rd7 Qb6 27.Qd5 Kf8 28.Qb7 (28.Rb7?! Rd8+-) 28...Qb7 29.Rb7+-) 26.Rd7 Qb8 27.Qa5 (better is 27.Bc3+=) 27...Qc8? (better is 27...Be6 28.Re7 Bf7+=) 28.Rf7!+- Rf7 29.Qa7 Rd7 30.Bc3 Rd8 31.Ba5 Qa8 32.Qa8 Ra8 33.Bb6 Rc8 34.Bf1 g5 35.g3 Kf7 36.Bh3 Ra8 37.Bc5 Ra4 38.Bf1 h5 39.Kf2 (39...Ra2 40.Be2+-) 1–0. Kreuzer,Uwe – Mephisto MM4, 1989.

11.Nc3 dc4 12.Bc4 Nb6 13.d3 =+.

11.Nc3 dc4 12.Bc4 Nb6 13.Be2 e5 14.Qc2 (14.d3 Qe7=+) 14...Bg4 (14...Re8 15.0-0=+) 15.0-0 Qd7 16.Rd1 Nbd5 (16...Ra8 17.h3 Bh5 18.Bb2=) 17.Nd5 Nd5 18.Qe4 (18.h3 Nb4 19.Qe4 Bf3 20.Qf3 Re8+=) 18...Nf6=+ 19.Qc4 Qc7 20.h3 Be6 21.Qc2 (21.Qc3 Ra8=) 21...h6 (21...Bd5 22.d4 ed4 23.ed4=+) 22.Rc1 (22.Bc4 Bc4 23.Qc4 Ra8=) 22...Qb8 (22...Ra8 23.Bc4 Bc4 24.Qc4=) 23.d3 (23.Bc4 Bc4 24.Qc4 Re8=) 23...Nd7 24.Nd2 f5 25.Nc4 Be7 26.d4 cd4 27.ed4 ed4 28.Bd4+= Bf6 29.Bf6 Nf6 30.Ne3 Rc8 31.Qb2 Ne4?? 32.Nc2?? (better is 32.Bc4 Rc4 33.Nc4+- (33.Rc4?! Bc4 34.Nc4 Qf4=)) 0–1. Sternik,Ryszard – Grzelak,Romuald, corr Poland, 1967.

11.d3 b6 12.0-0 Bb7 13.Qc2 Qe7 =.

11.d3 b6 12.0-0 Bb7 13.Nbd2 Qc7 (13...Qe7 14.Bb2=+) 14.Qc2 Ra8 15.Rc1 (15.Bb2 e5=) 15...Ne5 (15...e5 16.e4 d4 17.Bb2=+) 16.h3 (16.d4 Nf3 17.Nf3 cd4 18.Bd4 e5 19.Bb6 Qb6=) 16...dc4 (16...Ned7 17.cd5 ed5 18.Bc3=) 17.dc4 h6 (17...Ned7 18.Rd1=) 18.Qb2 (18.Rd1 Rd8=) 18...Nfd7 19.Kf1 (19.Rd1 Nf3 20.Nf3 Nf6=) 19...f6 (19...Rd8 20.Rd1=) 20.Qc2 Nf3 (20...Rd8 21.Rd1=) 21.Nf3 (21.Bf3 Be5 22.Be5 Ne5 23.Bb7 Qb7=) 21...Nf8 (21...Ne5 22.Be5 Be5 23.Rd1=) 22.Bd3 (22.Rd1 Rd8=) 22...Bf3 23.gf3 Be5 (23...f5 24.Rd1=) ½–½. Dzindzichashvili,Roman – Fuchs,Reinhard, Tbilisi, 1965.

11.d3 Qc7 12.Nc3 =+.

11.d3 Qc7 12.Nbd2 b6 13.Qc2 Bb7 14.0-0 Ra8 15.Bb2 Ne5 16.Rd1 Nf3 17.Nf3 e5 18.cd5 (18.d4 e4 19.Ne5 cd4 20.ed4 dc4 21.Qc4 Bd5 22.Qc7 Bc7=) 18...Nd5 19.Nd2 Nb4 20.Qb3 (20.Qc3 Ra2=) 20...e4 (20...Bd5 21.Nc4=) 21.Qc3 f6 22.Ne4 Bh2 23.Kh1 Be4 24.de4 Be5 25.Qc4 Kh8 26.Bc1 Rd8 27.f4 Rd1 28.Bd1 Qd8 29.Bb3 Bd6 30.Bd2 Qe8 31.Kg1 h6 32.g4 Bb8 (better 32...Qd8!?+=) 33.Bb4+- cb4 34.Qb4 g5 35.Qd4 Kg7 36.Qb6 (36.e5 fe5 37.fe5 Be5 38.Qb6 Qe7+-) 36...Qe4+/- 37.Bd5 (better 37.Qe6!? Qe6 38.Be6 gf4 39.ef4 Bf4 40.Kf2+/-) 37...Qd5+= 38.Qb8 gf4 (38...Qd1 39.Kf2 Qd2 40.Kf3 Qd1 41.Ke4 Qg4 42.Qc7 Kg6 43.Qc4 Qf5 44.Kf3=) 39.Qc7 (39.ef4 Qd1 40.Kh2 Qe2 41.Kg3 Qe3 42.Kh4 Qf2 43.Kh3 Qf3 44.Kh4 Qf2 45.Kh3 Qf3 46.Kh4 Qf2=) 39...Kg6 40.Qc2 Kg7 41.ef4 Qb5 42.Qc7 ½-½. PeterRs (2430) - nzcricket (2685), ChessWorld.net, 2010.

11.d3 Qc7 12.h3 e5 13.Nc3 (13.cd5 Nd5 14.0-0 b6=+) 13...d4-/+ 14.Ne4 Ne4 15.de4 de3 (15...Nf6 16.Bd3=+) 16.fe3=+ Nf6 (16...Nb6 17.Qc2=+) 17.Nd2 (17.Qc2 b6=+) 17...Qa5 18.0-0 Qa3 (18...Rd8 19.Qc2=+) 19.Nb3 Ne4 20.Rf3 (20.Bd3 Nf6=+) 20...Be6-/+ 21.Bd3 Nf6 (21...Ng5 22.Rg3 f6-/+) 22.Bc2 (22.Be2 Bc7-/+) 22...Rd8 (22...Bc4 23.Rf6 Bb3 24.Bh7 Kh7 25.Qb1 Kg8 26.Rd6-/+) 23.Qf1 Qa4 24.Rf6=+ Bc4 25.Rd6= Rd6 26.Qf5 Re6 27.Qh7 Kf8 28.Qh8 Ke7 29.Qh4 f6 30.Qg4 Bb3 31.Qa4 Ba4 32.Ba4 Rd6 33.Bb3?? c4 34.Bc4 Rd1-+ 35.Kf2 Ra1 36.Bd5 b6 37.Kg3 Rc1 38.Kg4 Rc5 39.Bc6 Rc6 40.bc6 Kd6 41.c7 Kc7 42.Kf5 b5 43.Kg6 (43.g4 Kd6 44.h4-+) 0–1. De Visser,Arno – Duinmaijer, 1985.

11.d3 e5 12.cd5 Nd5 13.Nbd2 Re8 14.0-0 Kh8 15.Ne4 Bc7 (better is 15...N7f6!?=) 16.Nfd2 ½–½. Lindner,Jan Joost (2075) – Kuettner,Uwe (2345), EU–chT Seniors, 2007.

11.d4 dc4 12.dc5 Bc5 13.Bc4 Qc7 =.

12.Nc3 Bb7 13.d3.

12.Nc3 Bb7 13.d4?! cd4 14.Nd4 (14.ed4 dc4 15.Bc4 Bf3 16.Qf3 Bh2 17.Kh2 Qc7; 14.Qd4) 14...Qc7 15.cd5 Bh2 16.Kh1 Nd5 17.Nd5 Bd5 18.f4 Bg3 19.Nf5 ef5 20.Qd5 Qd8 21.Qf5 Qh4 22.Qh3 Nc5 23.Bd4 Ne4 24.Bb6?! (24.Kg1 Bf2 25.Kh2 Bg3=) 24...Nf2 25.Rf2 Bf2 26.Qh4 Bh4 27.Kh2 Be7 28.Ba7 Re8 29.Bf3 Bd6 30.Bd4 Bb8 31.b6 g6 32.g4 Rd8 33.b7 g5 34.Be5 Be5 35.fe5 Kf8 36.Kg3 Ke7 37.Bd5 f6 38.ef6 Kf6 39.e4 Ke5 40.Kf3 Kd4 41.Ke2 Rf8 42.Be6 Rb8 43.Bd5 ½–½. Junge – Steinmueller, corr 1977.

12.Nc3 Bb7 13.d4 cd4 (13...dc4 14.Bc4 Bf3 15.gf3 cd4 16.Qd4-/+) 14.Nd4 (14.Qd4 e5 15.Qd2 e4=) 14...Qc7+= 15.h3 (15.cd5 Bh2 16.Kh1 Nd5 17.Nd5 Bd5+= (worse is 17...ed5 18.f4+-)) 15...Ne5 (15...dc4!? 16.Qc2 Rd8-/+) 16.cd5= Nd5 17.Nd5 Bd5 (worse is 17...ed5 18.f4 Ng6 19.Nf5+/–) 18.Qb1 Ra8 19.Rc1 Qb7 20.f3 Ra3 (20...Bc5 21.Bb2+=) 21.e4= Ba2 22.Qb2 Ra8 23.Nc6 f6 24.Qc2 Bc5 25.Bd4 Nc6 26.Bc5 bc5 27.bc6 ½–½. CountFromHolland – Hotty_toaster, playchess.de, 2002.

12.d3 Qc7 13.Nbd2 Bb7 14.Qc2 Ra8 15.Bb2 Be7 16.Rc1 h6 17.d4 Ra2 18.Qb1 Ra7 19.h3 dc4 20.Nc4 Be4 21.Bd3 Bd5 22.Nfd2 Qb8 23.Qc2 Qc7 24.Ne5 Ne5 25.de5 Nd7 26.e4 Ba2 27.Ra1 Qb7 28.g3 Nf8 29.Kg2 Bd8 30.Rd1 Qb8 31.h4 Qa8 32.Be2 Ra4 33.Nc4 Bc4 34.Bc4 Bc7 35.f4 Ra7 36.h5 Ra4 37.Kh3 Kh8 38.Qd3 Kg8 39.Qe2 Ra7 40.Bb3 Ra5 41.Kg2 Ra7 42.Rd2 Qe8 43.Rd1 Ra5 Attacking the isolated pawn on b5 44.Bc4+= Ra7 45.Rd2 Ra4 46.Rd1 Ra8 47.Qc2 Qb8 48.Qe2 Qc8 49.Bd3 Qe8 50.Bc3 1–0. Buczinski,Henryk (2200) – Latib,Yunus (1845), RA–2011–0-00171, 2011.

12.d4 Qc7 13.dc5 Bc5 14.Nbd2 Bb7 15.Qb1 dc4 16.Rc1 Ra8 17.Rc4 Bd5 18.Rc1 Qb7 19.Bd3 Ra4 20.Re1 Qa8 21.h3 h6 22.Bc3 Ra3 23.Bb2 Ra4 24.Bc3 Ra3 25.Bb2 Ra4 26.Bc3 ½–½. Nguyen Hoang Nam1 (2360) – Pham Chuong (2395), Can Tho VIE, Men Ch, 2012.

13.Nbd2 Qc7 14.Qc2 Ra8 15.Bc3 Qb8 16.h3 h6 17.Ra1 e5 (17...Ra1 18.Ba1 e5 19.cd5 Bd5 20.Nc4=) 18.cd5 (18.Ra8 Qa8 19.d4 ed4 20.ed4 Qe8=) 18...Nd5 19.Ra8 Qa8 20.Bb2 Bc7 (20...Nb4 21.Qc4=) 21.Nc4 Nb4 (21...Qe8 22.Nfd2=) 22.Qd1 (22.Qb3 Qe8=) 22...Qe8 23.e4 f6 (23...Qd8 24.Qb3=) 24.Bc3+= Nf8 (24...Na2!? 25.Bd2 Kh7+=) 25.Bb4+/– cb4 26.Qb3 Kh7 (26...Ne6 27.Qb4 Nf4 28.Bf1+=) 27.Qb4 Ne6 28.Ne3 (28.Ncd2 Qd7+=) 28...Nf4 29.Bf1 Qd7 30.Qc4 Bd8 (30...Bb8 31.Kh2+=) 31.d4 (31.Kh2 Be7+=) 31...ed4 32.Nd4 Be4 33.Nc6 f5 34.Nd8 (34.f3 Qd2 35.fe4 Qe3 36.Kh1 Nh5 37.Nd8 Ng3 38.Kh2 Qf4+=) 34...Qd8= 35.Qf7 Qg5 36.Bc4 h5 37.Qg8 Kh6 38.Qh8 Kg6 39.Qe8 Kh6 40.Bf7. pierre – Hitman, internet, 2006.

13.Nbd2 Qc7 14.Qc2 Ra8 15.Bc3 h6 16.Qb2 (16.Ra1 Ra1 17.Ba1 Ne5=) 16...e5 17.cd5 Nd5 18.Nc4 (18.Ra1 Ra1 19.Qa1 Nc3 20.Qc3 Nf6=) 18...Nc3 19.Qc3 Ra4 (19...Bd5 20.Ra1=) 20.Ra1 Ra1 21.Qa1 e4 22.de4 Be4 23.h3 Be7 24.Ncd2 (24.Nfd2 Bf6 25.Qa4 Bd5=) 24...Bd5 25.e4 (25.Bc4 Qd6=) 25...Bf6 26.Qa3 Bb7 27.Bc4 Ne5 28.Qa7 Nf3 29.Nf3 Bd8 30.Bd5 Bd5 31.Qc7 Bc7 32.ed5 Kf8 (32...c4 33.Kf1 Kf8 34.Nd4=) 33.Nd2+= Ke7 34.Nc4 Kf6 (34...h5 35.g3+=) 35.Kf1 Kf5 36.f3 h5 (36...Kf6 37.Ke2+=) 37.g4 hg4 38.hg4 (38.fg4?! Ke4 39.d6 Bd8+=) 38...Kf6 39.Ke2 Ke7 40.Ke3 Kd7 41.Ke4 Ke7 (41...g6 42.g5+/–) 42.f4 (42.d6 Bd6 43.Nb6 Ke6+/–) 42...Kd7 43.f5 Ke7 44.d6 Bd6 45.Nb6 (45.Nb6 Kf6 46.Nc4+-) 1–0. De Visser,Arnold – Germanov,Aleksandr Mikhailov, corr ICCF EU/M/Gr/558, 1997.

13.Nbd2 Qc7 14.h3 Ra8 15.Qc2 (15.cd5 ed5 16.Qc2 Qd8=) 15…Ne5. Kasper – Schulze, (year?).

13.Nbd2 Qc7 14.h3 Re8 15.Bb2 e5 16.cd5 Nd5 17.e4 Nf4 18.Nc4 f6 19.Nfd2 Nf8 20.Nd6 Qd6 Attacking the backward pawn on d3 21.Nc4 Qd8 22.Qc2 N8e6 23.Kh2 (better 23.Rd1!?=) 23...Ne2-/+ 24.Qe2 Nf4 25.Qe3 Qd3 (25...Nd3? 26.Rd1 Qa8 27.Rd3 Be4 28.Nb6+-) 26.Nb6?? (better 26.Qd3 Nd3 27.f3=+) 26…Qf1-+ (26...Qf1 27.Qf3 Ne2-+) 0–1. GuestXQYZ – GuestYKZZ, freechess.org, 2017.

13.Nfd2 Qc7 14.h3 e5 (14...Ra8 15.Nc3+=) 15.cd5= Nd5 16.Nc3 Rd8 (16...Ra8 17.Nc4 Nb4 18.Bg4=) 17.Nd5 (17.Bf3 N7f6=) 17...Bd5 18.Nc4 Be7 (18...Bc4 19.dc4 Nf8 20.Qc2+=) 19.Qc2 (19.Bf3 Be6=) 19...f6 20.Bg4 Nf8 21.Bf5 Be6 (21...Qb7 22.f4 ef4 23.Rf4=) 22.Be4 (22.Be6 Ne6 23.Qb3 Kf7+=) 22...Rc8 (22...Ng6 23.Bb2=) 23.Bb2+= Bd8 (23...Nd7 24.f4+=) 24.Ra1 Ng6 (24...Nd7 25.Ra6+=) 25.Ra6 (25.Nb6 Qb6 26.Ra6 Qb5 27.Re6 Ne7+=) 25...Qd7 (25...Rb8!?+=) 26.Rb6+/– (worse is 26.Nb6 Qb5 27.Qa4 Qa4 28.Na4 Kf7+=) 26...Bb6 27.Nb6 Qb5 28.Nc8 Bc8 29.Bd5 (29.Ba3!?+-) 29...Kh8+= 30.Ba3 Attacks the isolani on c5 30...Ba6 31.Bc4 (31.Be4 c4+/–) 31...Qa5 32.Ba6 Qa3 33.Qc4 h5 (33...Qa1 34.Kh2 h6 35.Qe6+/–) 34.Qe6 Kh7 35.g3 (35.Qf5 Qa6 36.Qh5 Kg8 37.Qg6 c4 38.dc4 Qc4+/–) 35...Qa5 (35...h4 36.g4 e4 37.de4 Qa1 38.Bf1 Qe5+/–) 36.Bb7 Qd8?! (36...Qa1 37.Kg2 Kh6+-) 37.Qf5 Qe8 (37...Kh6 38.Bf3 Nf4 39.gf4+-) 38.Qh5 (38.Qh5 Kg8 39.Be4+-) 1–0. Zenner,Claus – Dieckmann,Egon, corr DDR, 1972.

13.dc5 Nc5 14.Nc3 (14.Be5 Be5 (14...Nfe4 15.Qd4 f6 16.Bd6 Qd6 17.Nbd2 e5 18.Ne4 Ne4 19.Qb2 Qe6=; 14...Nce4 15.Qd4 Bc5 16.Qb2 Qe7 17.cd5 Bd5 18.Nc3 Nc3 19.Bc3 Ra8=) 15.Ne5 Qc7 16.Qd4 Rd8 17.Rd1 Nfe4 18.Nf3 f6 19.Nbd2 e5+=; 14.Nbd2 Qe7 (14...Ng4 15.h3 Nf6 16.cd5 Bd5 17.Nc4 Bc7 18.Bd4 Qe7 19.Qc2 Rd8=; 14...Nfe4 15.cd5 Nd2 16.Qd2 Bd5 17.Qd4 f6 18.Rd1 Nb3 19.Qh4 Na1=) 15.Ne5 Rd8 16.Bd4 Be5 17.Be5 dc4 18.Qc2 Be4 19.Ne4 Nfe4=) 14...dc4 (14...Qe7 15.cd5 Nd5 16.Qd4 f6 17.Rd1 Rd8 18.Qh4 Ra8 19.Nd5 Bd5=; 14...Qc7 15.cd5 Nd5 16.Qd4 f6 17.Qh4 Ra8 18.Nd5 Bd5 19.Bd4 Nb3+=) 15.Bc4 (15.Nd2 Qc7 16.f4 Rd8 17.Qc2 Be7 18.Nc4 Nfe4 19.Rd1 Rd1=) 15...Ng4 16.g3 Bf3 17.Qf3 Nh2 18.Kh2 Qh4 19.Kg2 Qc4 20.Rh1 Be7 21.Ne2 (21.Qc6 Bf6-+) 21...Rd8 (better is 21...Qb5!? 22.Nd4 Qd7-+) 22.Nd4-/+ Bf8 23.Rh4 Nd3 24.Qe4 g6 25.Rh1 Rd5 0–1. phildo (1875) – mannx (2155), gameknot.com, 2012.

13.cd5 ed5 14.Qc2 Qc7 Black prepares c4 15.Nbd2 Re8 (15...c4 16.Bc3=) 16.Bd3 (16.dc5 bc5 17.Bd3 Ne4=) 16...c4 17.Rc1 Nf8 18.Bf5 (18.Ne5 Qe7 19.Bf5 Bc8=) 18...g6 (18...Bc8 19.Ne5+=) 19.Bh3= Bc8 (19...Ne6 20.Bc3=) 20.Bc8 Qc8 21.Ne5 Ne6 22.h3 Ng5 (22...Nc7 23.Rb1+=) 23.Bb2 Qb7 24.Ra1 Ra8 25.Ra8 Qa8 26.f3 Ne6 27.e4 (27.Nc6 Nc7 28.e4 Nb5 29.ed5 Qa2-+ (29...Nd5?! 30.Qc4 Nbc7 31.Ne5=)) 27...Qa2+= 28.Qb1 Qa4 (28...Qb1 29.Nb1 Nc7 30.Nc3=) 29.Qa1= Qb5 30.ed5 c3 31.Bc3 Nf4 32.Qa7 (32.Nec4 Bf8=) 32...Qd5+= 33.Qa6 (33.Nb1 b5-/+) 33...Kg7 (33...Bc5 34.dc5 Qc5 35.Kh2 Qc3 36.Nec4-/+) 34.Qa1+= Qb5 35.Nec4 Qg5 36.Qf1 Nh3 (36...Nh3 37.Kh1 Nf2 38.Kg1 Bg3-+) 0–1. Naeter,Burkhard (2095) – Geus,Jan (1820), Swiss–77.2.05, 1999.

13.cd5 Nd5 14.Na3 Qe7 =.

14.Qb3 cd4 15.ed4 Ra8 16.Bb2 -/+.

14.Qb3 cd4-/+ 15.ed4 dc4 (15...Ra8 16.Rc1-/+) 16.Qc4+= Nd5 (16...Qb8 17.Qd3-/+) 17.Qc7 Bc7 18.Ne5 N7f6 19.Bb2 Ra8 20.Ra1 Ra1 21.Ba1 Nf4 22.Bf1 Ne4 (22...Kf8 23.Bb2=) 23.Ne4= Be4 24.f3 Bb7 (24...Bc2 25.Bc4=) 25.Kf2 (25.Bc3 Nd5 26.Bd2 h6=) 25...f6 (25...h6 26.Nc6=) 26.Nc4 (26.Nc6 Nd5=) 26...Kf7 (26...Nd5 27.h4=) 27.g3 Nd5 28.Ne3 (28.Bb2 g5=) 28...Bd6 (28...Ne3 29.Ke3 Bd5 30.Bd3=) 29.Bd3 (29.Nc4 Bb8=) 29…Ne3 ½–½. Grossmann,Philipp (1930) – Rosin,Ralf (1990), Bayernliga, 2006.

14.Qb3 Ne4 15.g3 (15.dc5 Ndc5 16.Qb2 f6+=) 15...Ndf6 (15...Nd2 16.Nd2 cd4 17.ed4 dc4 18.Nc4+=) 16.Bd3 (16.cd5 ed5 17.dc5 bc5+=) 16...Nd2 (16...cd4 17.ed4 Ra8 18.Qb1+=) 17.Nd2+= ½–½. Schwichtenberg,J – Neudel,B, Dresden, 2001.

14.dc5!? Qc5 15.cd5 Bd5 16.Qb1 =.

14.dc5 Bc5 15.Qb1 Ra8 =.

14.dc5 Bc5 15.Qb1 dc4 =.

14.dc5 Bc5 15.Qb1 Rd8 =.

14.dc5= Nc5 15.h3 (15.Bf6 gf6 16.cd5 Bd5=) 15...Nfe4 16.cd5 Bd5 17.Nd4 (17.Bc4 Qd7+=) 17...Ra8 18.Ne4 (18.Nc4 Ra2 19.Nd6 Qd6-/+) 18...Ne4 19.Bf3 (19.Bd3 Bh2 20.Kh1 Be5+=) 19...Bh2 20.Kh1 Be5 21.Qe2 (21.Be4 Be4 22.f3 Bd5+=) 21...Bc4 (21...Ra2 22.Qa2 Ng3 23.fg3 Ba2 24.Nc6 Bg3 25.Bd4-/+) 22.Ne6 (better is 22.Qd1!? Qb7 23.Qb1 Bf1 24.Be4 Ra1 25.Qa1 (25.Bb7?? Rb1 26.f4 Bb5 27.Kh2 Bd4 28.ed4 Rd1-+) 25...Qe4 26.Qf1 Bd4 27.ed4 Qd4 28.Qc1-/+) 22...Be6-+ (22...Be2?! 23.Nc7 Bc7 24.Be2 Nf2 25.Kg1+=; 22...Ra1?! 23.Ra1 fe6 24.Ra8 Kf7 25.Qc2-/+; 22...fe6?! 23.Be5 Be2 24.Bc7 Bf1 25.Be4+=) 23.Be4 Ra1 24.Ra1 Ba1 (24...Ba1 25.Qd3 g6-+) 0–1. Tkachiev,V – Karpov,A, Alma Ata, 1995.

14.h3 cd4 15.Nd4 Ra8 16.cd5 Bd5 17.Bf3 =+.

14.h3 Ne4 15.Ne4 de4 16.Nd2 f5 17.Nb3 e5 18.d5 Qd8 19.Qe1 Qg5 20.Bd1 Bc8 21.Nd2 Nf6 (21...Qg6 22.Bc3=) 22.f3+= ef3 (22...Qg6 23.fe4 fe4 24.Kh2+=) 23.Nf3 (23.Bf3?! e4 24.Bd1 Nh5=; 23.Rf3?! e4 24.Rf1 Qg6=) 23...Qh6 24.Be5 Be5 25.Ne5 Re8 26.Qg3 Ne4 27.Qf4 g5 28.Qh2 Qf6 29.Ng4 Qc3 (better is 29...Qg7!? 30.Nf2 Nd2+=) 30.Qc7+= Qg7 (30...Kh8 31.Nf2 Nf2 32.Rf2 Qe1 33.Rf1 Qe3 34.Kh1+/–) 31.Qc6+/– Bd7? (31...Rf8 32.Bc2 Nd2 33.Bf5 Nf1 34.Bc8 Nd2 35.Be6 Kh8-/+) 32.Nh6+- Kh8 33.Nf5 Bc6 34.Ng7 Kg7 35.bc6 Nd6 36.Bg4 Re7 37.e4! Re4 38.c7 Re8?! 39.Rb1 h5 40.Be6 Nc8 41.Bc8 Rc8 42.d6 (42.d6 Kf7 43.d7 Rc7 44.d8Q Ra7 45.Rb6 Re7 46.Qd5 Kg7 47.Qg5 Kf8 48.Rb8 Kf7 49.Qg8 Kf6 50.Rf8 Rf7 51.Qf7 Ke5 52.Qd5#) 1–0. Osovsky,Boris (2130) – Salesa Greus,Francisco (2075), Valencia Provincial South, 2004.

14.h3 h6 15.Qc2 cd4 16.Nd4 Ra8 17.Rc1 =.

14.h3 h6 15.Qc2 cd4 16.Nd4 Nc5 17.Rd1 =.

14.h3 h6 15.Qc2 Re8 16.Rc1 (16.cd5 ed5 (worse is 16...Bd5 17.e4+/–) 17.dc5 bc5=) 16...e5 (16...cd4 17.Nd4 Nc5 18.N4b3=) 17.dc5 (17.de5 Ne5 18.cd5 Nd5 19.Ne5 Be5=) 17...Nc5 (17...Qc5 18.Nb3 Qc7 19.Qb2=) 18.cd5 Nd5 White gets strong play along the open d–file (18...Bd5 19.Nc4=) 19.Nc4 Nf6 (19...Nb4!? 20.Qb1 Nd5=) 20.Rd1+/– (worse is 20.Nd6 Qd6 21.Rd1 Qb8=) 20...Nce4 21.Qb2 Nd7 22.Nd6 Nd6 23.Qd2 Re6 (23...Bf3 24.Bf3 (24.gf3?! Re6=; worse is 24.Qd6 Qd6 25.Rd6 Be2 26.Rd7 f6+=) 24...Re6 25.Bg4+-) 24.Ne5!+- Ne5 (24...Re5 25.Be5) 25.Be5 Re5 26.Qd6 Qd6 (26...Re7 27.Qc7 Rc7 28.Rd8 Kh7 29.Bd3 g6 30.Rd6+-) 27.Rd6 Re6 28.Rd8 Kh7 29.Rd7 (29.Rd7 Be4 30.Rf7+-) 1–0. Grund,Karl Heinz – Glaser,Helmut F, corr Germany, 1970.

14.h3 h6 15.cd5 Bd5 16.Nc4 Be7 =.

15.Bb2 cd4 16.Bd4 e5 17.Bb2 Nc5 18.Qb1 e4 19.Nd4 Bh2.

15.Bb2 cd4 16.Nd4 e5 17.Nf5 +=.

15.Bb2 cd4 16.Nd4 Be5 17.Qc2 Nc5 18.Rc1 Nfe4 19.Ne4 de4.

15.Bb2 e5 16.de5= Ne5 17.cd5 Bd5 18.Qc2 Ra5 (18...Qe7 19.Be5 Be5 20.Bc4 Bc4 A) 21.Ne5? Bf1 (worse is 21...Qe5 22.Nc4 Qe6 23.Rd1=) 22.Nc6 Qe6 23.Nf1 Ne4-+; B) 21.Nc4=) 19.Ra1 (19.Be5 Be5 20.Bc4 Bf3 21.Nf3 Ra8+=) 19...Ra1= 20.Ba1 Qe7 21.Bb2 h6 22.Qb1 Nf3 23.Bf3 Bf3 24.Nf3 Qe4 25.Qa1 Be7 (25...Ne8!?+=) 26.Be5= Qd5 27.Qb2 Bd6 28.Bd6 Qd6 29.Qe5 Qe5 30.Ne5 Kf8 31.Kf1 Ke7 32.Ke2 Nd7 33.Nc4 Ke6 34.Kd2 Kd5 35.Kc3 f5 36.f3 g5 37.g4 f4 38.ef4 gf4 39.h4 Ke6 40.h5 Ne5?? (better is 40...Kf6+/–) 41.Ne5+- Ke5 42.Kd3 Kd5 (42...Kf6 43.Ke4 Ke7 44.Kf4+-) 43.g5! Ke6 (43...hg5 44.h6 Passed pawn) 44.g6 Kf6 45.Ke4 Kg7 46.Kf4 Kf6 47.Ke4 Kg7 48.f4 Kf6 49.f5 Kg7 50.Ke5 Kh8 (50...Kf8 51.f6 Ke8 52.Ke6 Kd8 53.f7 Kc7 54.g7 c4 55.f8Q c3 56.Qe7 Kc8 57.g8Q) 51.f6 1–0. Osmak,Yulia – Konopatskaya,Alexandra, UKR–ch U12 Girls, 2009.

15.Bb2 h6 16.Qb3 (16.cd5 Bd5 17.Qc2 cd4 18.Qc7 Bc7 19.Bd4 e5; 16.dc5 Nc5 17.Bf6 gf6 18.cd5 Bd5 19.Nc4 Be7) 16...e5 (16...cd4 17.ed4 Ne4 (17...Bf4 18.Rc1 Qd6 19.Bc3 Qb8) 18.Rc1+= dc4 19.Rc4 Qb8) 17.de5= Ne5 18.Ne5 (18.Rd1 Qe7 19.Qc3 Nc4) 18...Be5 19.cd5 (19.Bf3 Ra7) 19...Bd5 20.Bc4 Bb2 21.Qb2 Qd7 22.Rc1 Ra5 23.Ra1 (23.Qc2!?+=) 23...Ra1-/+ 24.Qa1 Bc4 25.Qa8 Kh7 26.Nc4 Qb5 27.Nd6 Qd7 (27...Qa5 28.Qf3 Qa1 29.Kh2 Qe5 30.Qf4-+) 28.Qf8 Qe6 29.Qd8 Nd7 30.Qc7 f5 31.h4 Nf6-+ 32.h5 Ne4 33.Nc8-/+ b5 34.Qd8? Nf6-+ 35.Nd6? b4 36.g4 fg4 37.Qc7 Qe5 38.Qb6 g3 39.Qa6 gf2 40.Kf2 Qd6! (40...Qd6 41.Qd6 Ne4 42.Ke2 Nd6-+) 0–1. Ramos Moreno,FJ (2105) – Terron Elena,FM (2275), Malaga ESP, Regional Ch, 2013.

15.Qc2 A) 15...e5 16.de5 (16.Ne5 Ne5 17.de5 Be5 18.Be5 Qe5 19.Bf3 Ra1) 16...Ne5 17.Rd1 h6 18.cd5 Bd5 19.Be5 Be5; B) 15...h6 16.cd5 (16.dc5 Nc5 17.Bf6 gf6 18.cd5 Bd5 19.Nc4 Be7) 16...ed5 17.dc5 bc5 18.Rb1 Qb6 19.Bc3 Bc7; C) 15...cd4 16.Bd4 (16.Nd4 e5 17.N4f3 h6 18.Rd1 e4 19.Nd4 Ra7) 16...e5 17.Bb2 e4 18.Nd4 Bh2 19.Kh1 Be5.

15.dc5 A) 15...Qc5 16.cd5 (16.Qc2 e5 17.Rc1 Rc8 18.Bb2 h6 19.Qd1 Qb4) 16...Bd5 17.Qb1 Qb4 18.Qb4 Bb4 19.Rb1 Bd6; B) 15...Bc5 16.Qb1 (16.Qc2 Ba3 17.Bb2 Bb2 18.Qb2 Nc5 19.Rc1 dc4) 16...h6 17.Rc1 Ba3 18.Rc2 dc4 19.Nc4 Bc5; C) 15...Nc5 16.cd5 (16.Bf6 gf6 17.cd5 Bd5 18.Nc4 Be7 19.Qc2 f5) 16...Nd5 17.Nc4 Be7 18.Qb1 Bf6 19.Bf6 Nf6.

15.cd5 A) 15...ed5 16.dc5 (16.Qc2 c4 17.Bc3 Ra3 18.Ra1 Ra1 19.Ba1 Bb4) 16...bc5 17.Qc2 g6 18.Bc3 c4 19.Rd1 Be7; B) 15...Bd5 16.Qb1 (16.Nc4 Ne4 17.Qc2 f6 18.Bd3 f5 19.Rc1 Bf8) 16...cd4 17.Rc1 Ba2 18.Qb2 Qd8 19.Qd4 Bd5.

14.Bd4 Qc7 15.h3 e5 16.Bb2 Rc8 17.Qb3 Nc5 Black intends e4 18.Qa2 Ra8 19.Qb1 Na4 20.Ba1 e4 21.Nd4 Bh2 22.Kh1 Be5 23.Rc1 Nc5 24.Bb2 Qd7 25.cd5 (25.Rd1 Nd3 26.Bd3 ed3 27.cd5 Nd5=+ (worse 27...Qd5 28.f3+=)) 25...Bd5 26.Kg1 Ne6 27.Ne6 (27.N2b3 Nd4 28.Bd4 Qe6=) 27...Bb2 (worse 27...Be6 28.Be5 Qd2 29.Bf6 gf6 30.Bc4 Bc4 31.Rc4+=; 27...Qe6?! 28.Bc4=) 28.Qb2 Qe6 29.Bc4 h6 30.Bb3 (30.Bd5 Qd5 (worse 30...Nd5 31.Rc6 Qe7 32.Qd4+-) 31.Qd4 Rd8=) 30...Bb3 31.Nb3 Qd5 32.Nd4 Ra2 (32...Nd7 33.Nc6 Qg5 34.Rd1=) 33.Qc3 Qd8 34.Qc6 g6 (34...Ra7 35.Rd1=) 35.Qc4 (35.Qb7 Qd6+-) 35...Rd2 (35...Ra8 36.Qc2+=) 36.Ra1 (36.Qc8!? Qc8 37.Rc8 Kg7 38.Rc6+=) 36...Nd5= 37.Qc1 Rd3 38.Qc6 Kg7 39.Ra8 Rd1 40.Kh2 Qc7 41.Qc7 Nc7 42.Rc8 (42.Rb8 Nd5+=) 42...Rc1= 43.g4 Rc5 Exerts pressure on the isolated pawn 44.Kg3 Kf6 45.Rb8 Nd5 46.Rb7 h5 47.Rd7 hg4 48.Kg4 Ke5 (better 48...g5!? 49.Rd6 Ke5=) 49.Rf7+- Rc1 50.Rf8 Nf6 51.Kg3 Rg1 52.Kh2 Ra1 53.Rc8 Ra2 54.Rc6 Nd7 (54...Rf2 55.Kg1 Rf5 56.Nf5 gf5 57.Rb6+-) 55.Kg3 (55.Rg6?! Rf2 56.Kg3 Rf1 57.Rg5 Kd6+-) 55...Ra1 56.Kg2 Ra8 57.Rg6 Kd5 58.h4 Rh8 59.Kg3 Rh7 60.Rg5 Kc4 61.h5 Nc5 62.Kh4 Na4 (62...Rf7 63.Rf5 Rh7 64.Kg5+-) 63.Rf5 (63.Rg6 Rf7 64.Kg3 Kd5+-) 63...Rg7 (63...Nc3 64.Kg5+-) 64.h6 Rg2 (64...Rg8 65.Kh5 Rb8 66.h7+-) 65.Rh5 Rh2 (65...Rg8 66.Nf5 Nc5 67.Nd6 Kb4 68.h7+-) 66.Kg5 Rf2 67.h7 Rf8 68.h8Q Rh8 69.Rh8 Nc3 70.Rc8 (70.Rc8 Kd3 71.Rc6 Ke3 72.Nf5 Kd3 73.Rb6+-) 1–0. Mueller,Michael – Hanreich,W, corr QTV–25 Bruchkoe, 1991.

14.Bd4 e5 15.Bb2 =+.

14.Nd4 Qc7 15.f4 Ra8 =+.

14.Nd4 Qc7 15.h3 Ra8 A) 16.Bb2 A1) 16...e5 17.N4f3 (17.N4b3 Nc5 18.Nc5 Qc5 19.Nf3=+; 17.Nf5 Bb4 18.f4 e4 19.Qc2=) 17...Ra5 18.Qc1 Ra2 19.Qb1=; A2) 16...Rd8 17.Qc2 (17.cd5 Bd5 18.Qc2 Nc5 19.Bf3=; 17.f4 Bb4 18.cd5 Bd5 19.Bf3=+) 17...e5 18.Nf5 Bb4 19.Nf3=; A3) 16...Nc5 17.Qc2 (17.Nc6 Bc6 18.bc6 Bh2 19.Kh1 Be5=+; 17.f4 Na4 18.Ba1 Bb4 19.N4f3=+; 17.cd5 Na4 18.Qc1 Nb2 19.Qb2=+) 17...Ra2 18.Ra1 Ra1 19.Ba1=; B) 16.Qc2 B1) 16...e5 17.Nf5 Bf8 18.Rc1 g6 19.Ng3=; B2) 16...Rc8 17.Rc1 (17.Bb2 e5 18.Nf5 Bb4 19.Ra1=; 17.N4f3 Ba8 18.Rc1 Ne4 19.Ne4=) 17...Nc5 18.N4f3 Nce4 19.Ne4=; B3) 16...Bc5 17.N2b3 (17.N2f3 dc4 18.Bc4 Bd6 19.Rd1=; 17.N4b3 Ba3 18.Bd3 e5 19.e4=) 17...e5 18.Nc5 Nc5 19.Nc6=; B4) 16...Nc5 17.Rd1 (17.Rc1 Ra7 18.Nc6 Bc6 19.bc6=; 17.cd5 Bd5 18.Nc4 Bh2 19.Kh1 Nce4=+) 17...Ra7 18.Nc6 Bc6 19.bc6=; B5) 16...Ne5 17.Bb2 (17.Rc1 dc4 18.Nc4 Be4 19.Qb3=) 17...dc4 18.Rc1 c3 19.Qc3=; C) 16.Qb1 C1) 16...Ra4 17.Rc1 (17.Rd1 e5 18.Nc6 Bc6 19.bc6=) 17...Nc5 18.N4b3 Nfe4 19.Ne4=; C2) 16...Rc8 17.Rc1 (17.Rd1 dc4 18.Nc4 Bh2 19.Kh1=; 17.N4b3 e5 18.cd5 Bd5 19.Rc1=; 17.cd5 Bd5 18.e4 Bb7 19.N4b3=+) 17...Ne4 18.Ne4 de4 19.Rd1=; C3) 16...Nc5 17.Rc1 (17.Rd1 Bh2 18.Kf1 Be5 19.Kg1=+; 17.cd5 Bd5 18.Bf3 Bf3 19.N4f3=+) 17...Ra4 18.N4b3 Nfe4 19.Ne4=; D) 16.f4 D1) 16...Ra3 17.N4b3 (17.Nc2 Ra4 18.Bc3 e5 19.fe5=+) 17...Nc5 18.Bb2 Ra2 19.Qb1=+; D2) 16...Ra2 17.Bf3 (17.cd5 Bd5 18.Bf3 Qc5 19.Bd5=+) 17...Ne4 18.Ne4 de4 19.Be2=+; D3) 16...Nc5 17.cd5 (17.Nc2 Nfe4 18.Ne4 Ne4 19.cd5-/+; 17.Bb2 Na4 18.Ba1 Bb4 19.N4f3=+) 17...Nd5 18.Nc4 Ne4 19.Bd3=+; D4) 16...Bb4 17.N4f3 Ra3 18.Bd4 Bc5 19.Ne5-/+; E) 16.cd5 Bd5 17.Qb1 (17.Qc1 Nc5 18.Nc4 Ra2 19.Nd6=+; 17.Bf3=+ Ra2 18.Bd5 Nd5 19.N2b3=+) 17...Nc5 18.Bf3 Bf3 19.N2f3=.

14.Nd4 Qc7 15.h3 Rc8 A) 16.f4 A1) 16...Ra8 17.cd5 (17.Bb2 Bb4 18.cd5 Bd5 19.N2b3=+; 17.Bc3 Nc5 18.Qc2 Nce4 19.Ne4=+; 17.Qc2 Nc5 18.cd5 Bd5 19.Nc4=+) 17...Bd5 18.Qb1 Nc5 19.Nc4=+; A2) 16...Bc5 17.Qb3 (17.Bd3 dc4 18.Nc4 Bd5 19.Nd2=+; 17.cd5 Bd5 18.N2b3 Ne4 19.Nc5=+; 17.Qb1 Ra8 18.cd5 Bd5 19.Bb2=+; 17.Qc2 dc4 18.Nc4 Bd5 19.Rc1=+) 17...Ra8 18.Bb2 Bd6 19.Qc2=+; A3) 16...Nc5 17.N4b3 (17.cd5 Nd5 18.Nc4 Ra8 19.Bf3=+; 17.Qc2 Be7 18.Rc1 dc4 19.Nc4=; 17.Bf3 Nfe4 18.cd5 Bd5 19.Ne4=) 17...Nfe4 18.Nc5 Nc5 19.Bd4=; A4) 16...Be7 17.Qc2 (17.cd5 Nd5 18.Nc4 N5f6 19.Qc2=+) 17...dc4 18.Nc4 Be4 19.Qb2=+; A5) 16...Bb4 17.N4b3 (17.cd5 Bd5 18.Bf3 Qd6 19.Qe2=+) 17...dc4 18.Bc4 Qd6 19.Qe2=; A6) 16...Bf8 17.cd5 (17.N4f3 dc4 18.Nc4 Ne4 19.Nfe5=+; 17.Qc2 Bc5 18.Rd1 e5 19.fe5=+; 17.Qb1 Nc5 18.N4f3 Nfe4 19.Ne4=+) 17...Nd5 18.Nc4 N5f6 19.Qc2=+; A7) 16...dc4 17.Nc4 (17.Bc4 Bb4 18.Be2 Nc5 19.Nc4=+) 17...Be7 18.Qc2 Be4 19.Qd2=+; B) 16.Bb2 B1) 16...Rd8 17.cd5 (17.Qc2 e5 18.Nf5 Bb4 19.Rc1=+; 17.f4 Bb4 18.cd5 Nd5 19.Nc4=+) 17...Bd5 18.Qc2 Nc5 19.Bf3=; B2) 16...Ra8 17.cd5 (17.f4 Nc5 18.N4f3 Nce4 19.Ne4=+; 17.Qc2 e5 18.Nf5 Bb4 19.Rc1=+; 17.Re1 e5 18.Nf5 Bb4 19.Rf1=+; 17.Qb1 e5 18.N4b3 Nc5 19.Rc1=+) 17...Bd5 18.Bf3 Bh2 19.Kh1 Be5=; B3) 16...e5 17.Nf5 (17.N4b3 Nc5 18.Nc5 Qc5 19.Bf3=+; 17.N4f3 Bb4 18.Qb3 Ba5 19.Rd1=+) 17...Bb4 18.f4 e4 19.Qc2=; B4) 16...Nc5 17.N4f3 (17.f4 Ra8 18.Nc2 Nfe4 19.Ne4=+; 17.cd5 Bd5 18.Nc4 Be7 19.Nf3=+; 17.Nc6 Bc6 18.bc6 Bh2 19.Kh1 Be5=+; 17.N4b3 e5 18.Nc5 Qc5 19.cd5-/+) 17...e5 18.cd5 e4 19.Nd4=+; C) 16.cd5 C1) 16...Bd5 17.Bf3 (17.Qb1 Nc5 18.Bf3 Bh2 19.Kh1 Be5=) 17...Ne5 18.Bd5 Nd5 19.Ne4=; C2) 16...Bh2 17.Kh1 Bd5 18.f4 Bg3 19.Bf3=.

14.Nd4 Qc7 15.h3 Rd8 A) 16.cd5 A1) 16...Nd5 17.Nc4 (17.Qc2 e5 18.Qc7 Bc7 19.N4f3=; 17.Qc1 Nc5 18.Nc4 Rc8 19.Nd6=) 17...Bh2 18.Kh1 Nc5 19.Qc2=; A2) 16...Bd5 17.Bf3 (17.Qc1 Nc5 18.Nc4 Be7 19.Qb2=+; 17.Qc2 Qc2 18.Nc2 Rc8 19.Nd4=+) 17...Ra8 18.Bd5 Nd5 19.Nc6=; B) 16.Qb1 B1) 16...Bh2 17.Kh1 Be5 18.cd5 Bd5 19.f4=; B2) 16...Ra8 17.N4b3 (17.cd5 Bd5 18.e4 Bb7 19.N4f3=+; 17.Rc1 Nc5 18.N4b3 Nfe4 19.cd5=; 17.Rd1 Ra4 18.cd5 Bd5 19.Nc6=) 17...e5 18.cd5 Bd5 19.e4=; B3) 16...Bc5 17.N4f3 (17.Rc1 e5 18.N4f3 e4 19.Nd4=; 17.N4b3 Ba3 18.Rd1 e5 19.Qf5=; 17.cd5 Bd5 18.Rc1 e5 19.N4f3=) 17...h6 18.Rc1 e5 19.cd5=; B4) 16...dc4 17.Nc4 Be4 18.Qb2 Nc5 19.Nd6=; B5) 16...Ne4 17.Ne4 de4 18.Rd1 Nc5 19.Bc3=; B6) 16...Nc5 17.Nc6 Bc6 18.bc6 Nfe4 19.Qb2=; B7) 16...e5 17.Nf5 Bc5 18.cd5 Bd5 19.Rc1=.

14.Nd4 Qc7 15.h3 e5 16.Nf5 Bb4 17.f4 (17.Qc2 Ra8 18.Rc1 Ra7 19.Qd1=; 17.cd5 Bd5 18.Nf3 Ra8 19.Qb1=+) 17...ef4 (17...Rd8 A) 18.cd5 Nd5 (18...Bd5 19.fe5 Ne5 20.Bd4=) 19.Nc4=; B) 18.fe5 Ne5 19.Nf3=) 18.Rf4= Re8 (18...Ra8 19.Nb3= (19.Bb2=)) 19.cd5 Nd5 20.Rg4 (20.Ng7 Ne3 (20...Re3?! 21.Rg4 Rg3 22.Ne4 Rg4 23.Bg4=) 21.Ne8 Qf4-+) 20...g6 21.Nc4 Bc5 22.Bf3 (22.Bd4 N7f6 23.Bf6 Nf6=+) 22...N7f6 (22...Ne3 23.Nce3 Be3 24.Ne3 Bf3 25.Qd4=) 23.Rg5 (23.Bf6 Nf6 24.Qa1 Re6 25.Bb7 Qb7=+) 23...Ne3-/+ 24.Nfe3 Re3 25.Rc5 Qc5 26.Ne3 Qe3 27.Kh1 (27.Kf1 Bf3 28.gf3 Ne8=+) 27...Bf3 28.gf3 Qe6 29.Kg1 (29.Bf6 Qf6 30.Qd3 g5-/+) 29...Nd5 30.h4 (30.Kf2 f6-/+) 30...f6 31.Bd4 Kf7 32.Bf2 Qf5 (32...h5 33.Qd3-/+) 33.Qb3 Kg7 34.Qd1 Nc3 35.Qd6 (35.Qd8 Qf3 36.Qd7 Kh6 37.Bb6 Qg3 38.Kf1 f5 (38...Qh4 39.Qd2 g5 40.Qc3+-) 39.Qd2 f4-+) 35...Qf3 (35...Nb5?! 36.Qe7 Kh6 37.Be3 g5 38.Qf8 Kh5 39.Qe8 Kh6 40.Qf8 Kg6 41.Qg8 Kh5 42.Qe8 Kh6 43.Qf8=) 36.Bb6 (36.Qd7 Kh6 37.Bb6 Qg3 38.Kf1 f5 39.Qd2 f4-+) 36...Kh6 (36...Qg4 37.Kf1 Qe2 38.Kg1 Nb5 39.Qd7 Kh6 40.Bc5 Qe1 41.Kg2 Qe4 42.Kh3 Qf5 43.Qf5 gf5 44.Kg3-+) 37.Kh2 (37.Qd7 Qg3 38.Kf1 f5 (38...Qh4 39.Qd2 g5 40.Qc3+-) 39.Qd2 f4-+) 37...Nb5 (37...Qe2 38.Kh3 Qf1 39.Kh2 Nb5 40.Qd2 Kh5 41.Bf2-+) 38.Qf8 Kh5 39.Qc5 Kh4 (39...Qf5 40.Qf5 gf5-+) 40.Qb5? (40.Qc4 Kh5 41.Qb5 g5-/+) 40...g5?? (better 40...Qf4 41.Kg1 Qg5 42.Qg5 Kg5-+) 41.Qc5 (41.Qa5 Qg3 42.Kh1 f5-/+) 41...g4 (41...f5 42.Qc2-/+) 42.Qd4 (42.Qc4 h5=+) 42...Qe2 43.Kg1 Kh3 44.Qe3?? (better 44.Qc3 Qf3 45.Qd2 Qg3 46.Kh1-+) 44...Qe3 45.Be3 g3 46.Bd2 (46.Bh6 f5 47.Kh1 Kg4-+) 46...h5 47.Bc3 f5 48.Bf6 f4 49.Be5 Kg4 0–1. Krueger,Jan – Gavrijski,Dimitar (2010), corr ICCF WSTT/3/06/2, 2006.

12.d3 Bd7 13.Ne5 Qa8 14.Nd7 Nfd7 (14...Nbd7 15.Nc3=) 15.Nc3 dc4 (15...Nf6 16.Qc2+=) 16.dc4+= Be5 17.Qc2 (17.f4 Bf6+-) 17...Qa5 (17...Qa3 18.f4 Bf6 19.Kf2+=) 18.f4 (better 18.g3+=) 18...Bc3? (better 18...Bf6!?+=) 19.Bc3+- (19.Qc3?! Qc3 20.Bc3 Ra8+=) 19...Qa4 (19...Qa7 20.Qb2 g6 21.Ra1+-) 20.Qd3 Ra8 (better 20...h6+-) 21.Ra1 Qb3 (21...Qa1 22.Ba1 Ra1 23.Kf2 g6+-) 22.Ra8 Nf8 23.Rf8! Kf8 (23...Kf8 24.Qd8) 24.Qd8 1–0. Adlai – Zaega, corr, 2018.

12.d3= Bd7 13.Ne5 Qc7 14.f4 (< 14.Nd7 Nbd7 (< 14...Bh2 15.Kh1 Nfd7 16.g3+/–) 15.g3 Ra8=) 14...Rd8 (14...Bc8 15.Nd2+=) 15.Bf3 dc4 16.dc4 Be5 (better is 16...Be8!? 17.Qe2 Nfd7+=) 17.Be5+- Qc8 18.Qc2 Be8 (18...Ne8 19.Nd2+/–) 19.Nd2 Nbd7 20.Bd6 b6 (better is 20...Nb6 21.Be7 Rd2 22.Qd2 Nc4+-) 21.Be7 e5 22.Qd3 Qc7 (22...ef4 23.ef4 h6+-) 23.Bd8 Qd8 24.fe5 (24...h6 25.ef6 Qf6 26.Bd5+-) 1–0. mrkt – guest7858, ICC, 2005.

12.d3= Bd7 13.Ne5 Bc8 14.f4=.

12.d3 Qe7 13.Nbd2 e5 14.d4 ed4 (14...cd4 15.ed4 e4 16.c5 ef3 17.Bf3=) 15.ed4 Be6 (15...Re8 16.Re1=) 16.Re1 Ne4 (16...Re8 17.Qc2=) 17.cd5 Bd5 18.Bd3 (18.Ne4 Be4 19.Qc1 Rd8=) 18...f5 19.Ne4 (better is 19.Qc2 Ra8 20.Bb2=) 19...fe4-/+ (< 19...Be4 20.Qb3 Kh8 21.Nd2+=) 20.Be4? (20.Qd2 cd4 A) 21.Nd4 Bf4 22.Qc3 Bh2 23.Kh2 Qh4 24.Kg1 Qf2 (24...ed3?! 25.Nf3 Qf6 26.Qd3=) 25.Kh2 ed3-+; B) 21.Bd4=+) 20...Be4-+ 21.Nd2?? (better is 21.dc5 Bc5 22.Bd4-+) 21...Bh2 22.Kf1 (22.Kh1 Bg2 (22...Rf2 23.Ne4 Qh4 24.Nf2 Bg3 25.Nh3 Be1 26.dc5+-) 23.Kh2 Qh4 24.Kg2 Rf2 25.Kg1 Qh2) 22…Bd3 (23.Re2 Nd5-+) 0–1. pumpkin (2515) – vladislavk (2005), net–chess.com, 2005.

12.d3 Qe7 13.Nbd2 e5 14.cd5 Nfd5 15.Nc4 f6=.

12.d3 Qe7 13.Nbd2 e5 14.cd5 Nfd5 15.Ne4 f5? (better 15...Re8=) 16.Nd6+- Qd6 17.Ne5 f4 18.e4 Nb4 (18...Nf6 19.Nf3 Qe7 20.Re1+-) 19.d4+- cd4? (better 19...Be6+-) 20.Qd4 (20.Bd4?! Be6+-) 20...Qd4 21.Bd4 1-0. onur604 (2320) - Nidalee (2260), Casual Rapid game, lichess.org, 2021.

12.Na3= Nb6 13.Nc4 Nc4 14.Bc4 b6 15.Ne5 (15.d4 Bb7=) 15...Bb7 16.f4 Qc7 (16...Be7 17.d3=) 17.Ng4 Be7 (17...Ne8 18.Qc2=) 18.Nf6 (18.f5 Ne8+/–) 18...Bf6+= 19.Bf6 gf6 20.f5 (20.Qg4 Kh8 21.Qh4 f5+=) 20...e5 21.Qg4 Kh8 22.e4 (22.Qh4 Qd6+=) 22...Qd7 (22...Qd6!? 23.d3 Ra8+=) 23.d3+= Qd4 24.Kh1 Qe3 25.Qh5 Kg7 26.h4 Qh6 27.Qh6 Kh6 28.Ra1 Rd8 29.Ra7 Rd7 30.Kg1 (30.Bd5 Bc6 31.Rd7 Bd7+=) 30...Kg7 (30...Kh5 31.g3+/–) 31.Kf2 Kf8 (31...Bc8 32.Rd7 Bd7 33.Ke3+=) 32.Ke3 (32.g4 Ke7+/–) 32...Kg7 (32...Ke7 33.g3+=) 33.Kd2 (33.Bd5 Bc6 34.Rd7 Bd7+/–) 33...Bc6 34.Rd7 (< 34.bc6 Ra7 35.Bb5 Kf8-+) 34...Bd7 35.Kc3 (35.Ke3 Kf8+=) 35...Kf8 (35...Kh6 36.g4+=) 36.Kb3 Ke7 37.Ka4 (37.g4 Kd6+/–) 37...Be8 38.Bd5 Kd6 39.Bb7 Kc7 40.Bd5 Kd6= ½–½. Sokolski – Schagalowitsch, Minsk, 1959.

12.Bc4 e5 13.d3 Nb6 (better is 13...Qe7!?=+) 14.Be5+= ½–½. Nemeth,Laszlo – Szoboszlai,Zita, Cseppko op–A, 2002.

13.d3 Qe7 =.

13.Be2 Nfd5 14.Nc3 =+.

13.Be2 Bd7 14.Qb3 Nfd5 15.Ne5 Qc7 16.f4 Ra8 17.Na3 Be8 18.Nac4 Be7 19.Nb6 Qb6 20.f5 Bf6 21.Bb2 Nc7 22.fe6 Ne6 (22...fe6 23.Bc4=) 23.Bc4 Qd6 24.Nf3 Bb2 25.Qb2 Ra4 26.Rc1 Rb4 27.Qc2 (27.Qe5 Qe5 28.Ne5 b6+=) 27...Bb5= 28.Be6 Qe6 29.Qc5 Rc4 30.Rc4 Qc4 (30...Bc4?? 31.Nd4 Qg4 32.Qc4 Qd1 33.Kf2 Qd2 34.Kf3+-) 31.Qc4 Bc4 32.Ne5 Ba6 33.Kf2 f6 34.Nd7 Bb5 35.Nb6 Kf7 36.e4 Bc6 37.Ke3 f5 38.d3 g5 39.g3 fe4 40.de4 Ke6 41.Kd4 g4 42.Nc4 h5 43.Nb6 Kd6 44.Nc4 Kc7 45.e5 Kd7 46.Nb2 Bb5 47.Kc5 Be2 48.Na4 Bf3 49.Nb2 ½–½. Grund,Karl – Janecky, corr ICCF T–626–19–S, 1975.

13.Be2 Bd7 14.Qc2 Nfd5 15.Rc1 Qc7 16.Nc3 c4 (16...Nb4 17.Qe4=) 17.Ne4 Rc8 Black gets the initiative (17...Bb5? 18.Nd6 Qd6 19.Qb2+-) 18.Nd6 Qd6 19.Ng5 (19.Be5 Qb4+=) 19...f5= 20.Bf3 (better 20.Qb2!? Qe7 21.f4=) 20...Qe7-/+ (20...Bb5?! 21.Qb2 Qd7 22.Ne6+=) 21.Bd5 (21.Nh3 Bb5 22.Qb1 Qd7=+) 21...Nd5 (21...ed5?! 22.Nf3=) 22.Nf3 Bb5 23.Qb2 Be8 24.Qd4 b5 25.d3 (25.Ne5 Qa3 26.Bb2 Qc5-/+) 25...c3 26.Qe5 (26.e4 Qa3 27.Re1 fe4 28.de4 Nf4-/+) 26...b4 27.e4 fe4 28.de4 Nf6 29.Nd4 Rc5 (29...Rc5 30.Qe6 Qe6 31.Ne6 Re5-+) 0–1. Scherbeijn,C – van der Kemp,M, corr NED, 1995.

13.Be2 Bd7 14.Qc2 Qe7 15.Be5 =.

13.Be2 Bd7 14.Be5 Be5 15.Ne5 Qc7 =.

12.Qc2 b6 13.Nc3 Bb7 =.

12.Qc2 b6 13.d3 Bb7 14.Nbd2 =+.

12.Qc2 b6 13.d3 dc4 14.dc4 Bb7 15.h3 Ra8 16.Nc3 Ra5 (16...Ne5 17.Ne5 Be5 18.f4=) 17.Bb2 (17.Rd1 Ne5=) 17...Ba8 (17...Ne5 18.Ne5 Be5 19.f4=) 18.Rd1 Ne5 (18...Bf3 19.Bf3 Ne5 20.Be2+=) 19.Nd2 (19.Qd2 Nf3 20.Bf3 Bf3 21.Qd6 Qd6 22.Rd6 Ne8 23.Rb6 Ba8+-) 19...Qb7 (19...Bb7 20.Nde4 Ne4 21.Ne4=) 20.e4 Bc7 (20...Ra7 21.Nb3 Qe7 22.f4 Nc4 23.Bc4 Bf4 24.Qd3+-) 21.f4+= Ng6 22.g3 h5 (22...e5 23.f5 Nf8 24.Nb3+=) 23.Bf3+- Qb8 (23...Qc8 24.Nb3 Ra7 25.Qg2+-) 24.e5 Nh7 (better 24...Bf3!? 25.Nf3 Qa8+-) 25.Bh5+- Be5 (better 25...Nhf8+-) 26.Bf3?? (26.Nb3 Bd4 27.Nd4 cd4 28.Bg6 fg6 29.Rd4+-) 26...Bd4= 27.Kg2 Nf6 28.Ne2 e5 29.fe5 Qe5 (29...Be5 30.Be5 Ne5 31.Ba8 Qa8 32.Kg1=+) 30.Nd4 cd4 31.Nb3 (31.Ba8!? Ra8 32.Nf3+-) 31...Nh5 (31...Bf3 32.Kf3 d3 33.Rd3 Qe4 34.Kf2+=) 32.Qf2 Increasing the pressure on the isolated pawn on d4 32...Ra2 (32...Bf3 33.Qf3 Ra2 34.Rd2 Nhf4 35.Kh2-/+) 33.Rd2 (33.Ba8 Ra8 34.Bd4 Qe4 35.Kh2 Ne5+-) 33...Qg5 (33...Bf3 34.Qf3 Nhf4 35.Kf1 Qe3 36.Qe3 de3-+) 34.Ba8+- (34.Bd4?? Nh4 35.Kf1 Ng3 36.Ke1 Nf3 37.Qf3 Bf3 38.Ra2 Qh4-+; 34.Nd4? Nh4 35.Kh2 Nf3 36.Nf3 Bf3-+) 34...Ra8 35.Bd4 (35.Rd4!? Ra2 36.Rg4+-) 35...Ra3+= 36.Be3 (36.Rb2 Ngf4 37.Kh2 Nd3-+) 36...Qe5 (36...Nh4 37.Kh2 Qg3 38.Qg3 Ng3 39.Rd8 Kh7 40.Kg3 Nf5 41.Kf4 Ne3 42.Ke3 Rb3 43.Kd4+=) 37.Rd5 Qe4 38.Qf3 Ra2? (better 38...Ng3!? 39.Qe4 Ne4+=) 39.Nd2+- (39.Nd2 Nf6 40.Rd8 Kh7 41.Bf2+-) 1–0. Melich,Jindrich (2150) – Chrz,Pavel (2155), CZE–chT2b, 2001.

12.Qc2 e5 13.d3 =+.

12.Nc3 Nb6 13.Na4 Nfd7 =.

12.Nc3 Nb6 13.d3 d4 14.ed4 cd4 15.Na4 Na4 16.Qa4 =+.

12.Nc3 Nb6 13.d3 e5 14.e4 (14.cd5 Nfd5 15.Ne4 f6=) 14...d4=+ 15.Nd5 (15.Na4 Na4 16.Qa4 Nh5=+) 15...Nfd5 (15...Nbd5 16.ed5 Bf5 17.Re1=+) 16.ed5 f5 17.h3 (17.Qc2 Re8 18.Re1 Re7=) 17...Qe7 (17...e4 18.Nd2 Qe7 19.Qc2-/+) 18.Re1=+ Re8 (18...Bd7 19.Bf1 Qf6 20.Bb2=+) 19.Bb2 (19.Nd2 Qh4=+) 19...Bc7 (19...e4 20.de4 fe4 21.Bd3=+) 20.Bc1 (20.Nd2 Qd6=+) 20...Qd6 (21.Nd2 e4=+). Karker,Norbert – Weiss,Wilhelm, Dyckhoff mem–B corr5456, 1954.

12.Nc3 dc4 13.Bc4 Nb6 14.Be2 Nbd5 15.d4 b6 16.Nd5 Nd5 17.dc5 bc5 18.Qb1 Bb7 (18...Rd8 19.Rd1=) 19.e4 (19.Ng5 g6 20.Qb2 e5+=) 19...Nf4 (19...Nb6 20.Rd1=) 20.Bc4 Qe7 21.Qb2 f5 22.e5 Bc7 23.Qb3 Rd8 24.Rd1 (24.Qe3 Nd5 25.Qg5 Kf8=) 24...Rd1 25.Qd1 Qd8 26.Qd8 Bd8 27.Ne1 Bd5 28.Bf1 Ba5 29.Nc2 Ng6 30.g3 f4 31.Bd3 (31.Na3 Kf7=) 31...fg3 (31...Kf7 32.Bg6 Kg6 33.gf4=) 32.hg3= ½–½. Fernandez Fornes – Enricci, CADAP M–ct E–88, 1988.

12.d3 e5 13.Nc3? d4 14.Ne4 Ne4 15.de4 de3. de Visser – Duijnmaijer, 1985.

12.d4 b6 13.h3 Bb7 14.Nbd2 Ra8 15.Bb2 Ra2 16.Qb3 Ra8 17.Ra1 cd4 18.Ra8 Ba8 19.Nd4 Nc5 20.Qc2 Qb7 (20...Bb7!?=) 21.Nc6+= dc4 22.Nc4 Bf8 (22...Qc7 23.Nd6 Qd6 24.Be5+/-) 23.N4e5 (23.Bf6!? gf6 24.Qa2+/-) 23...Qc8 24.Bf3 Nd5 25.Bd4 (better 25.Bh5 g6 26.Bf3+/-) 25...Nd7?? (25...f6 26.Bc5 bc5 27.Be4 fe5 28.Bh7 Kh8 29.Ne5+/-) 26.Nd7 (better 26.Bd5 Nc5 27.Be4+-) 26...Qd7+/- 27.Bd5 Qd5 28.f3 (28.Qa4 Bc6 29.bc6 b5+/-) 28...h6 (28...Qb5 29.Na7 Qg5 30.Kh1-/+) 29.Kf2 (29.Qa4 Bc6 30.bc6 b5+/-) 29...Bc5 (better 29...Qb5 30.Ne5 Bc5-/+) 30.Bc5+= bc5?? (better 30...Bc6 31.e4 Qd7 32.Bb6 Bb5+=) 31.Ne7+- (31.Ne7 Kh8 32.Nd5 Bd5 33.e4+-) 1-0. Pi13 (2125) - almasssss (2250), Rated Bullet game, lichess.org, 2020.

12.d4 dc4 13.Bc4 cd4 14.Qd4 e5 15.Qh4 e4 16.Nfd2 Ne5 17.Be5 Be5 18.f4 Bd6 19.f5 Qb6 20.Qh3 Bc5 21.Re1 g6 22.g4 Rd8 23.Nb3 Ng4 24.Bf7 Kf7 25.Qh7 Kf8 26.Nc5 Bf5 (26...Qc5?? 27.fg6 Be6 28.g7 Ke8 29.g8Q Bg8 30.Qg8 Ke7 31.Qg7 Ke6 32.Qg4 (32.Qb7?! Qe5 33.Qa6 Ke7 34.Qa7 Rd7+=) 32...Qf5 33.Qf5 Kf5 34.Rf1 Ke5 35.Rc1+-; 26...gf5?! 27.Qh8 Kf7 28.Qh7 Ke8 29.Qg8 Ke7 30.Qg7 Ke8 31.Qg8 Ke7 32.Qg7 Ke8 33.Qg8=) 27.Qh8 (worse is 27.Nb7 Rc8 28.Nc3 Nf6-+ (28...Rc3?! 29.Qh8 Kf7 30.Nd8 Ke7 31.Qc3 Qd8 32.Ra1=)) 27...Kf7 28.Qc3?? (better is 28.Qh7 Kf6 29.Ne4 (29.Nb7? Rb8-+) 29...Be4 30.Qh4 g5 31.Qg4 Bb1 32.Rb1 Qe3 33.Kh1+=) 28...Qc7-+ (28...Qb5?! 29.Na3 Qc6 30.h3-/+) 29.Qc2 Rd5 30.h3 (30.Qa2 Qc5 31.Nc3 Ne3 32.Nd5 Nd5 33.Qf2-+) 30...Rc5 (30...Qg3 31.Kh1 Qe1 32.Kg2 Ne3 33.Kh2 Nc2 34.Nd3 Rd3 35.h4 Qe2 36.Kg1 Rd1) 31.Qa2-+ Be6 (better is 31...Ke7 32.Qg2 Rc1 33.Rc1 Qc1 34.Qf1 Qe3 35.Kg2-+) 32.Rf1 (32.Qg2 Rc2 33.Nd2-+) 32...Ke7 33.Qa8 Qh2 0–1. Mallmann,Bernd (1970) – Sidon,Mike (1815), SVR–ch MAT, 2008.

12.d4 dc4 13.Bc4 Ng4 =.

12.d4 cd4 13.Qd4 e5 =.

12.d4 Rd8 =.

12.h3 b6 13.d4 Bb7 14.Nbd2 Ne4 15.Qc2 cd4 16.Ne4 de4 17.Nd4 Ra8 18.Qc3 Bf8 19.Rd1 Nc5 20.Nc2 f6 21.Bg4 Bd6 22.Nd4 Qe7 (22...Bc8 23.Qd2+=) 23.Qc2 Bc7 24.Bc3 Qf7 25.Bb4 f5 26.Be2 Rd8 27.Nb3 Rd1 28.Qd1 (worse is 28.Bd1 Nd3 29.Ba3 f4 30.ef4 Qf4+=) 28...Nb3 29.Qb3 Qd7 30.Qd1 Qd1 31.Bd1 Kf7 32.Kf1 Ke8 33.Ke2 Kd7 34.Kd2 Bd6 35.Kc3 Bc5 36.Bc5 bc5 37.f3 g5 38.fe4 Be4 39.Bf3 Bf3 40.gf3 e5 41.Kd2 h5 42.Kd3 h4 43.Ke2 Kd6 44.f4 gf4 (44...ef4 45.ef4 gf4 46.Kf3+-) 45.ef4 e4 (45...ef4?? 46.Kf3 Ke5 47.b6+-) 46.Ke3 ½–½. Krannich,Sven (1875) – Reichenbach,Werner (2305), Berlin Lichtenberger op 7th, 2008.

12.h3 dc4=+ 13.Na3 =+.

12.h3 dc4=+ 13.Bc4 Nb6!? 14.Bf6 Nc4 =+.

12.h3 dc4=+ 13.Bc4 Ne5 14.Ne5+= Be5 15.Nc3 (15.b6 Qb8 16.d4 cd4+=) 15...Rd8 (15...Bh2 16.Kh1 Bd6 17.d3=) 16.Qe2 (16.f4 Bd6=) 16...Nd5 (16...b6 17.f4 Bd6 18.Na4=) 17.f4 Nc3 18.Bc3 Bc3 19.dc3 Qd6 (19...b6 20.e4=) 20.Bb3 (20.e4 b6=) 20...b6 (20...Qe7 21.Rd1=) 21.e4 (21.Rd1 Qe7+=) 21...g6 (21...Qe7 22.e5=) 22.Rd1+= Qc7 23.Rd8 Qd8 24.g4 (24.e5 Bb7+=) 24...Kg7 25.Kg2 (25.g5 e5 26.Qe3 Qd7=) 25...Bb7 26.Kg3 (26.Bc2 Qf6 27.Qe3 e5 28.fe5 Qe5=) 26...Qd6 (26...Qa8 27.Bc4=+) 27.Qe3 (27.e5 Qc7=) 27...h6 28.e5 Qd7 29.c4 (29.Qe2 Ba8=) 29...Ba8 30.Bc2 Qb7 31.Qf2 Qe7 (31...Qh1 32.Bd3=) 32.h4 (32.Bd3 Qd7 33.Qe3 Qb7=) 32…Bb7 (32...Qa7 33.Qe2=) ½–½. Hasari,Seppo – Ahtiainen,Esko, corr FIN–ch H qual, 1972.

13.Qc2 Bb7 14.Nbd2 h6 15.g3 (15.cd5 ed5 16.Rc1 Ra8=) 15...Re8 16.Bb2 e5 17.Re1 (17.e4 d4=) 17...d4 18.Qd1 (18.Ra1 Ra8=+) 18...e4 19.de4 (better is 19.Ne4 Ne4 20.de4 de3 21.fe3 Re4 22.Kf2=+) 19...de3-+ 20.fe3 Ne4 21.Ne4 Be4 22.Bd3 (22.Rf1 Ne5=+) 22...Bg3 (better is 22...Bd3!? 23.Qd3 Bg3-/+) 23.Be4= Be1 24.Qe1?? (better is 24.Bc6 Bb4 25.Qd7 Qd7 26.Bd7 Re3 27.Kf2=) 24...Re4-+ 25.Nd2 Re6 26.Qf2 Qd8 27.Nf1 (27.e4 Ne5 28.Be5 Re5-+) 27...Qg5 28.Kh1 Re4 29.Ng3 (29.Nd2 Re3 30.Nf1 Re6-+) 29...Rc4 (29...Re3?! 30.Bc1 Rf3 31.Qf3 Qc1 32.Qf1-+) 30.Nf5 (30.Qd2 Rh4 31.Kg2 Nf8-+) 30...Rb4 31.Ng3 Qd5 32.Kg1 Ne5 (33.Be5 Qe5-+) 0–1. Hasler,Ulrich – Vahvaselka,J, corr ICCF TT–4–90, 1992.

14.cd5 Bd5 15.e4 Bb7 =+.

15.Rc1 Ra7 A) 16.Bb2 e5 (16...Ng4 17.h3 Ngf6 18.cd5 Nd5 19.d4 Nb4 20.Qb3 Be7 21.e4 Qf4 22.Rc4 Ra5 23.Bc3=) 17.cd5 (17.e4 d4 18.Ra1 Ra1 19.Ba1 Nh5 20.Ng5 Nf4 21.Qd1 Be7 22.Ngf3 Qd6 23.Bb2=+) 17...Nd5 18.d4 ed4 19.ed4 cd4 20.Qc7 Nc7 21.Bd4 Bd5 22.Bc4 Bc4 23.Nc4=; B) 16.cd5 Nd5 17.d4 Nb4 18.Qd1 Na2 19.Rc4 Bd5 20.dc5 Bc5 21.Rg4 Bf8 22.Bc4 Nb4 23.Bd5=.

15.Rc1 e5 16.cd5 Nd5 (16...Bd5 17.Nc4 Bf3 18.Bf3 e4 19.Be4 Ne4 20.de4 Bh2 21.Kh1 Be5 22.Qd1 Ba1 23.Ra1=) 17.Nc4 (17.Qb1 Nb4 18.d4 e4 19.Ng5 Bh2 20.Kh1 h6 21.Nge4 Bd6 22.Bc4 Bf8 23.Qb3+=; 17.e4 Nb4 18.Qb3 Qd8 19.Nc4 Qf6 20.Nfd2 Qg6 21.Bh5 Qh5 22.Nd6 Bc8 23.Nf3+-; 17.Qb3 Nb4 18.Bc3 Na2 19.Ra1 Nc3 20.Ra8 Ba8 21.Qc3 Bd5 22.e4 Ba2 23.Nc4=; 17.Ne4 Nb4 18.Qd1 Na2 19.Rb1 Be7 20.Qc2 Bd5 21.Qb2 Nb4 22.Nc3 Bb7 23.Rd1=+; 17.Qc4 Nb4 18.Ng5 Bd5 19.Qh4 h6 20.Nge4 f5 21.Nc3 Be6 22.Qh3 Nf8 23.Nc4=) 17...Qb8 (17...Nb4 18.Qb3 Ra2 19.Bb2 Bd5 20.e4 Be6 21.Ng5 Bc4 22.Rc4 Nf6 23.Rb4=) 18.Ng5 (18.d4 ed4 19.ed4 Bf4 20.Rd1 N5f6 21.Ncd2 Qd6 22.dc5 Nc5 23.Nc4=) 18...h6 (18...Nb4 19.Qb1 Bc7 20.Bf3 Bf3 21.Nf3 Qe8 22.Bc3 Na2 23.Rc2=) 19.Ne4 Bc7 20.Bf3 (20.Bg4 Nb4 21.Qd1 Be4 22.de4 Nf6 23.Bf3=) 20...Nb4 21.Qb3 Bd5 22.Ned2 (22.Bb2 Qd8 23.Ba3=) 22...Qe8 (22...Qb7 23.Bb2=) 23.Bd5 (23.Bb2=) 23...Nd5 24.Nf3 e4 (24...Qe6 25.Bc3=) 25.de4 Qe4 26.Bb2 Qe6 27.Rd1 N5f6 28.Nfd2 Ng4 29.f4 Nf8 30.Rf1 Nf6 31.Qd1 Ne8 32.e4 Qd7 33.Qb3 Ne6 34.e5 Nd4 35.Bd4 Qd4 36.Kh1 g6 (36...Ra1 37.Ra1 Qa1 38.Qb1 Qb1 39.Nb1=) 37.Qf3 (37.f5 A) 37...Be5?? 38.fg6 (38.Ne5?! Qe5 39.fg6 Nd6+-) 38...Bf4 39.gf7 Kg7 40.Nb6+-; B) 37...gf5 38.Qf3 Ra1 39.Qf5 Rf1 40.Qf1 Be5=) 37...Ra1= 38.g3 Rf1 39.Qf1 Ng7 40.Nf3 Qd5 41.Ncd2 Nf5 42.Qc4 Qc4 43.Nc4 Kg7 44.Kg2 f6 45.Kf2 Kf7 46.ef6 Kf6 47.Ke2 g5 48.g4 Ne7 49.fg5 hg5 50.Ncd2 Kg6 51.Ne4 Bf4 52.h4 gh4 53.Nh4 Kf7 54.Kd3 Ke6 55.Kc4 Be3 ½–½. marekt – miquelstone, ChessWorld.net, 2005.

15.Rc1 e5 16.e4 d4 17.Nh4 (17.Nb3 Nh5 18.Bb2 Nf4 19.Ra1 Ra1 20.Na1 Qd8 21.Nb3 f5 22.ef5 Qf6 23.Bc1-/+; 17.Bb2 Nh5 18.Ra1 Ra1 19.Ba1 Nf4 20.Nb3 Bc8 21.Bb2 Qd8 22.Bc1 Qf6 23.h3=+; 17.Re1 Nh5 18.Bb2 Nf4 19.Nb3 Qd8 20.Ra1 Ra1 21.Na1 f5 22.ef5 Qf6 23.Bc1-/+) 17...Nb8 18.Nf5 Bc8 19.Nd6 Qd6 20.Bb2 Bg4 21.Bg4 Ng4 22.Ra1 Ra1 23.Ba1=.

15.Rc1 e5 16.h3 A) 16...Ra7 17.cd5 (17.Bb2 Ra2 18.Ra1 Ra1 19.Ba1 e4 20.Ne1 Bh2 21.Kh1 Be5 22.Be5 Qe5 23.de4=) 17...Bd5 18.Nc4 Qb8 19.Bc3 Bc4 20.dc4 e4 21.Nd2 Bh2 22.Kh1 Be5 23.Be5=; B) 16...d4 17.Rd1 (17.Rf1 Nf8 18.Bb2 Ra2 19.Qb1 Ra7 20.Qc2 Ng6 21.Ra1 Ra1 22.Ba1 Ne7 23.e4=+; 17.Bb2 Qd8 18.Ra1 Ra1 19.Ba1 Qe8 20.e4 Ba8 21.Bb2 Qe6 22.Bc1 Bb7 23.Ng5=; 17.Rb1 Qd8 18.Nh4 Nb8 19.Bf3 Qc7 20.Nf5 Bf3 21.Nf3 Qd7 22.Nd6 Qd6 23.Bb2=; 17.Re1 Nf8 18.Bb2 Ra2 19.Ra1 Ra1 20.Ba1 Ne6 21.Nb3 e4 22.de4 Be4 23.Bd3=) 17...Nf8 18.Bb2 Ng6 19.Ra1 Ra1 20.Ba1 Ne7 21.Bb2 de3 22.fe3 Nf5 23.Kf2=; C) 16...h6 17.Bb2 (17.Rd1 d4 18.Bb2 Nf8 19.Ra1 Ra1 20.Ba1 Ne6 21.Bb2 de3 22.fe3 Nf8 23.Qc3=; 17.Bc3 d4 18.Ba1 de3 19.fe3 Nh5 20.Nf1 Qd8 21.Bc3 Qe7 22.Ne1 Nhf6 23.Rd1=; 17.Rb1 d4 18.Re1 Re8 19.Rd1 Kh8 20.Bb2 Ra8 21.Ra1 Ra1 22.Ba1 Nf8 23.Bb2=) 17...e4 18.Ne1 Bh2 19.Kh1 Be5 20.Rd1 Bb2 21.Qb2 Qe5 22.Qe5 Ne5 23.d4=; D) 16...Ra5 17.Bb2 (17.Bc3 Ra3 18.Ra1 Ra1 19.Ba1 e4 20.Ne1 Bh2 21.Kh1 Be5 22.Be5 Qe5 23.de4=) 17...dc4 18.Nc4 Rb5 19.Ra1 e4 20.Ng5 ed3 21.Bd3 Bh2 22.Kh1 g6 23.Nf3+-; E) 16...Nf8 17.cd5 Bd5 18.Nc4 Ng6 19.Bc3 Bb7 20.Nd6 Qd6 21.Qb2 Qe6 22.Ra1 Nd7 23.Ra8=; F) 16...e4 17.Ne1 Bh2 18.Kh1 Be5 19.Be5 Qe5 20.cd5 Bd5 21.Ne4 Ne4 22.de4 Qe4 23.Qe4=+.

15.Rc1 e5 16.Nh4 e4 17.h3 (17.Nf1 ed3 18.Bd3 dc4 19.Bc4 Ne5 20.Be5 Be5 21.Nf5 Be4 22.Bd3 Bd3 23.Qd3=+; 17.g3 ed3 18.Bd3 Be5 19.Be5 Ne5 20.cd5 Nd3 21.Qd3 Bd5 22.e4 Be6 23.Nc4=+) 17...Be5 18.Be5 Qe5 19.cd5 Bd5 20.de4 Ra2 21.Qd3 Ne4 22.Ne4 Qe4 23.Rd1=.

15.Rc1 Ng4 16.h3 A) 16...Ngf6 17.cd5 (17.Bb2 e5 18.Ra1 Ra1 19.Ba1 e4 20.Ne1 Bh2 21.Kh1 Be5 22.Be5 Qe5 23.de4=; 17.Bc3 e5 18.Ra1 Ra1 19.Ba1 e4 20.Ne1 Bh2 21.Kh1 Be5 22.Be5 Qe5 23.de4=; 17.Ng5 h6 18.Ngf3 e5 19.e4 d4 20.Bb2 Nh5 21.Ra1 Ra1 22.Ba1 Nf4 23.Nb3=+) 17...Nd5 18.d4 cd4 19.Qc7 Nc7 20.Bd4 f5 21.Bd3 Nc5 22.Bc4 Bd5 23.Bd5+=; B) 16...Nge5 17.Ne5 Be5 18.d4 cd4 19.Bd4 Bd4 20.ed4 dc4 21.Bd3 Nf6 22.Nc4 Qd8 23.Ne5=.

15.Bc3 Qb8 16.h3 (16.Ra1 Ra1 17.Ba1 e5=) 16...Ra7 (16...e5 17.e4 d4 18.Ba1=+) 17.Ra1 Ra1 18.Ba1 e5 19.Bb2 e4 20.de4 de4 21.Nh4 g6 (21...Bh2 22.Kh1=) 22.g3 (22.Bc3 Bh2 23.Kh1 Be5=) 22...Be5 23.Ng2 Qd6 24.Nf4 Bb2 25.Qb2 Ne5 26.Qc2 g5 27.Nh5 (27.Ng2 Qe6 28.Qc3 g4=) 27...Nh5=+ 28.Bh5 f5 (28...Nd3 29.Be2=) 29.Qa2 (29.Be2 Nd3=) 29...f4 (29...Nd3 30.Be2=+) 30.ef4 gf4 31.gf4 Nd3 32.Qa7 Qf4 33.Nf3 ef3 (33...Bc8 34.Qa8 Kg7 35.Qc8 Qc1 36.Kh2 Qf4 37.Kh1+=) 34.Qb7=+ ½–½. Trokenheim,Marek – Goins, e–mail, 1996.

15.Bc3 e5 16.e4 d4 17.Ba1 =+.

15.e4 de4 16.de4 A) 16...Ng4 17.g3 Nge5 18.Rd1 Nf6 19.Qc3 Nf3 20.Bf3 e5 21.Bb2 Qd7 22.Kg2 Qe6 23.Qb3=; B) 16...Ne5 17.h3 (17.Be5 Be5 18.Ne5 Qe5 19.Bd3 Rd8 20.Rd1 Qf4 21.g3 Qg4 22.Ra1 e5 23.Ra7=+; 17.Ne5 Be5 18.Be5 Qe5 19.Bd3 Rd8 20.Rd1 h6 21.Nf3 Qf4 22.Re1 Qd6 23.Bf1=) 17...Nf3 18.Bf3 Bh2 19.Kh1 Be5 20.Be5 Qe5= 21.Rd1 Rd8 22.Nb3 Rf8 23.Nd2=; C) 16...Rd8 17.Rd1 Bf4 18.g3 Bd2 19.Nd2 e5 20.Bc3 Qd6 21.Qd3 Qd3 22.Bd3 Nf8 23.Be2=; D) 16...Bf4 17.Rd1 Ne5 18.Be5 Be5 19.Ne5 Qe5 20.Bd3 Qf4 21.g3 Qe5 22.f3 Qh5 23.Bf1=.

15.e4 de4 16.Ne4 Ne4 (16...Ng4 17.g3=+ (17.Nd6 Qd6 18.Qb2 f6 19.Rd1 Ra7 20.h3 Bf3 21.hg4 Be2 22.Qe2 e5 23.Qf3=+) 17...e5 18.Nfg5 Ngf6 19.Bf3 Ne4 20.Be4 Be7 21.f4 Bg5 22.fg5 Be4 23.de4=+; 16...Bf4 17.Rd1 (17.Bc3 Ra7 18.Ra1 Ra1 19.Ba1 Ng4 20.g3 Bd6 21.Nfd2 f5 22.Nd6 Qd6 23.f4=) 17...Ra7 18.g3 Bd6 19.Bf6 Nf6 20.Nf6 gf6 21.d4 cd4 22.Nd4 Bb4 23.Bf3=) 17.de4= Ne5 18.Nd2 (18.Be5 Be5 19.Ne5 Qe5 20.Bd3 Ra1 21.Ra1 Qa1 22.Qb1 Qb1 23.Bb1=) 18...Ng6 19.g3 Be5 (19...e5 20.Bc3 Qe7 21.Rd1 Qf6 22.Qd3 Qe6 23.Nf1=) 20.Be5 Qe5 21.Bd3 (21.Rd1 Ra1 22.Ra1 Qa1 23.Kg2=) 21...Qh5 (21...Rd8 22.Be2 Rd4 23.Bf3=+) 22.Re1 (22.f4 e5 23.f5=) 22...Ne5 (22...Rd8 23.Be2=+) 23.Be2 Qg6 (23...Ng4 24.Nf1 Qg6 25.Qd2=) 24.f4 Ng4 (24...Nd7 25.Qd3 Rd8 26.Qd6+=) 25.Bg4 (25.Qd3!? Nf6 26.Bf3+-) 25...Qg4= 26.Qd3 h5 27.Nf3 f6 28.Kf2 Qh3 29.Rd1 Ra2 30.Ke3 h4 (better 30...Kh7=) 31.gh4 (31.Rd2!? Ra8 A) worse 32.gh4 f5 33.Kf2 Qg4=+ (worse 33...Be4 34.Qd8 Rd8 35.Rd8 Kf7 36.Ng5 Ke7 37.Nh3 Kd8 38.Ng5=); B) 32.Qd7+=) 31...f5= 32.Qf1?? (better 32.Qd8 Kh7 33.Rg1 Ra3 34.Kd2 Qf3 35.Rg7 Kg7 36.Qe7 Kh8 37.Qf8 Kh7 38.Qf7 Kh6 39.Qf6 Kh7 40.Qf7 Kh8 41.Qf8 Kh7 42.Qf7=) 32...Ra3-+ 33.Ke2 Qg4 34.Rd8 Kh7 35.Qh3 Qh3 ½–½. Orsicz – Radecki, corr, 1972. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.e3 Bd6 9.c4 0-0 10.Be2 Nbd7 11.0-0 Qc7)

15.e4 Ng4 16.g3=+ Ngf6 17.Bb2 (17.Bc3 d4 18.Bb2 e5 19.Ra1 Ra1 20.Ba1 Bc8 21.Bb2 Be7 22.Nh4 Nb8 23.Bc1=+; 17.Re1 d4 18.Bb2 e5 19.Ra1 Ra1 20.Ba1 Bc8 21.Bb2 Nf8 22.Bc1 Ng6 23.Nb3=+; 17.Rb1 d4 18.Bb2 e5 19.Ra1 Ra1 20.Ba1 Bc8 21.Bb2 Be7 22.Nh4 Nb8 23.Bc1=+; 17.Rc1 de4 18.de4 e5 19.Bb2 Nf8 20.Ng5 h6 21.Ngf3 Ne6 22.Ra1 Ra1 23.Ba1=+; 17.Rd1 d4 18.Bb2 e5 19.Ra1 Ra1 20.Ba1 Bc8 21.Bb2 Be7 22.Bc1 Qd6 23.Nh4=) 17...d4 18.Ra1 Ra1 19.Ba1 e5 20.Bb2 Bc8 21.Bc1 Be7 22.Nh4 Nf8 23.Bf3=.

15.e4 Nh5 A) 16.Bb2 A1) 16...Nf4 17.Re1 (17.Bd1 d4 18.Bc1 h6 19.Re1 Ra7 20.Nb3 Ng6 21.Nbd2 Nf6 22.Be2 Nf4 23.Nb3=+) 17...d4 18.Bf1 Ne5 19.Ne5 Be5 20.g3 Ng6 21.Bg2 Bd6 22.Ra1 Ra1 23.Ba1=; A2) 16...d4 17.Re1 (17.Bc1 Nf4 18.Re1 Ne2 19.Re2 Ra7 20.Re1 h6 21.h3 Ra8 22.Nb3 Ne5 23.Ne5=+; 17.g3 Nhf6 18.Ra1 Ra1 19.Ba1 Bc8 20.Bb2 e5 21.Bc1 Nf8 22.Nb3 Be7 23.Nh4=+; 17.Nd4 Bh2 18.Kh1 Nf4 19.N4f3 Ne2 20.Nh2 Qd6 21.Ndf3 Nf4 22.Rd1 e5 23.Bc1=+) 17...Nf4 18.Bc1 Nf6 19.Nb3 Ng4 20.Bd1 Ng6 21.g3 Nf6 22.Bg5 Be7 23.Be2=+; B) 16.cd5 ed5 17.Rc1 (17.Re1 Nf4 18.Qb2 f6 19.Qb1 Ne5 20.Bb2 Qd7 21.Ne5 Be5 22.Bf1 de4 23.Be5=+; 17.Bb2 Nf4 18.Re1 Ra5 19.Qc3 f6 20.Bf1 Rb5 21.d4 Ra5 22.e5 fe5 23.de5-/+) 17...Nhf6 18.Re1 Bf4 19.ed5 Bd5 20.Ne4 Ra2 21.Qb1 Ne4 22.de4 Be6 23.e5=+; C) 16.ed5 ed5 17.d4 Nf4 18.Bd3 Nd3 19.Qd3 dc4 20.Qc4 Bf4 21.Qc3 cd4 22.Qc7 Bc7 23.Bd4=+; D) 16.g3 Nhf6 17.Bb2 d4 18.Ra1 Ra1 19.Ba1 e5 20.Bb2 Bc8 21.Bc1 Be7 22.Nh4 Nf8 23.Bf3=; E) 16.Re1 d4 (16...Nf4 17.Bb2 d4 18.Bf1 Ne5 19.Ne5 Be5 20.g3 Ng6 21.Bg2 Qe7 22.Ra1 Ra1 23.Ba1=) 17.Bb2 Nf4 18.Bf1 Ne5 19.Ne5 Be5 20.g3 Ng6 21.Bg2 Bd6 22.Ra1 Ra1 23.Ba1=.

12.d3 =+.

12.d4 cd4 13.ed4 e4 14.Nfd2 dc4 15.Nc3 Re8 16.Nc4 Bb8 17.Re1 Nb6 18.Ne5 h6 (18...Be5 19.de5 Qd1 20.Rd1 (20.Nd1?! Nfd5+=) 20...Re5 21.Na4 Na4 22.Be5+-) 19.Bf1 Bf5 (worse is 19...Be5 20.de5 Qd1 21.Nd1+/–) 20.Qc1 Qe7 (worse is 20...Qd4 21.Ne4 Qe4 22.Re4 Ne4 23.Nf3+/–; 20...Be5?! 21.de5 Re5 22.Na4+=) 21.f3 ef3 22.Nf3 Qd7 23.Bb2 Rc8 24.Qe3 Ng4 25.Qd2 Qc7 26.h3 Nh2 27.Ne5 Nf1 28.Rf1 Nc4 29.Qf2 (29.b6!? Qe5 30.de5 Nd2 31.Rf5-/+) 29...Be6-/+ 30.Ne4 Qe7 31.Ba1 Ne5 32.de5 Rc4 33.Qe3 Ba7 (33...Qb4!? 34.Nd6 Bd6 35.ed6 Qd6-/+) 34.Qa7= Re4 35.Kh2 Qd7 36.Qc5 Re2 37.Rf3 Qd1 38.Bc3 Rc2 39.Rf2 Rc1 40.Qd4 Qh1 41.Kg3 Rg1 42.Qh4 Rd1 43.Bd2 Qg1 44.Qe4 h5 45.Qd3 Rb1 46.Bc3 Rb3 47.h4 b6 48.Qd8 Kh7 49.Qd3 g6 50.Rb2 Ra3 51.Rf2 Ra4 52.Bd4 Qh1 53.Qe4 (53.Bb6?? Qh4 54.Kf3 Bg4 55.Ke3 Qg5 56.Rf4 Qf4) 53...Kg8 54.Rf4 Ra2 ½–½. Boehnke,Hartmut (2135) – Rosenhek,Marvin (2130), corr WS/M/078 ICCF, 2006.

12.d4 cd4 13.ed4 e4 14.Nfd2 Qc7 15.g3 (15.h3 A) 15...dc4 16.Nc4 (16.Nc3 Nb6 17.Nde4 Ne4 18.Ne4 Bh2 19.Kh1 Re8 20.Bf3 Bf4 21.Re1=; 16.Bc4 Nb6 17.Qe2 Bf5 18.Bb3 Rd8 19.Bb2 Bh2 20.Kh1 Bf4 21.Rc1+=) 16...Bh2 17.Kh1 Bf4 18.Qb3 Rd8 19.b6 Qc6 20.Nc3 Qe6 21.Qb5=; B) 15...Re8 16.c5 (16.Re1 dc4 17.Nc4 Bh2 18.Kh1 Bf4 19.Nc3 Nb6 20.Nb6 Qb6 21.Bb2+=; 16.Qb3 Bf4 17.c5 e3 18.b6 Qb8 19.Nf3 ef2 20.Rf2 Ne4 21.Nc3-+) 16...Bf4 17.Bc3 b6 18.c6 Nf8 19.Re1 e3 20.fe3 Be3 21.Kh1=) 15...e3 (15...dc4 A) 16.Nc4 Nd5 (16...Re8 17.Nd6 Qd6 18.Qc2+= Nb6 19.Qc5 Qd8 20.Qg5 Be6 21.Rc1+=) 17.Nc3 N7f6 18.Nd5 Nd5 19.Qb1 Re8 20.Ne3 Ne3 21.Rc1+=; B) 16.Qc1 Rd8 17.Qc4 Qa5 18.Bc3 Qa8 19.d5 Nb6 20.Qd4 Nbd5 21.Ne4+=; C) 16.Nc3 Nb6 17.Nde4 Ne4 18.Ne4 Bd7 19.Qb1 Ra8 20.Bc3 Be7 21.Rc1+=; 15...b6 16.cd5 (16.Nc3 Re8 17.cd5 Bb4 18.Bc4 Nf8 19.Qe2 Bf5 20.Rc1 Qd6 21.Qe3=; 16.Qb3 dc4 17.Bc4 Bb7 18.f3 ef3 19.Nf3 Bg3 20.hg3 Qg3 21.Kh1 Ne5+=) 16...Re8 17.Nc3 Qd8 18.Re1 Bb4 19.Bc4 Bc3 20.Bc3 Nf8 21.Qc2+=) 16.fe3= (16.c5 Bc5 17.fe3 Bb6 18.Bd3 Re8 19.Qf3 Nf8 20.Nc3 Ba5 21.Rc1+=) 16...Bg3 17.hg3 Qg3 18.Kh1 Ne5 (18...Qh3 19.Kg1 Qg3 20.Kh1 Qh3 21.Kg1 Qg3=) 19.de5 (19.Bf3 Qh4 20.Kg1 Bh3 21.Rf2-/+) 19...Qh4 (19...Qh3 20.Kg1 Qg3 21.Kh1 Qh3=) 20.Kg1 Qg5 (20...Bh3 21.Rf2+/–) 21.Kh1 (21.Kf2=) 21...Qh4 22.Kg1 Bh3 (better is 22...Qg3!? 23.Kh1 Qh4=) 23.Rf2+/– Qg3 24.Kh1 Qf2 25.Qg1 Qe2 26.ef6 g6 27.Bd4 (27.Qh2 Qe3 28.Qe5 Qf2-+) 27...dc4-/+ 28.Qh2 Qe1 29.Qg1 Qh4 30.Qh2 h6 31.Nf3 Qg4 32.Nbd2 Rc8 33.Ng1 c3 34.Bc3 Rc3 35.Qh3 Qh3 36.Nh3 Re3 37.Nf2 Re5 38.Nfe4 Rb5 39.Kg2 Rd5 40.Kf3 b5 41.Ke2 b4 0–1. Ladeira,Paulo – Lorenzo,Alfredo (1885), IECC, 2013.

12.d4 cd4 13.ed4 e4 14.Ne5 dc4 15.Nc4 Bb8 (15...Bf4 16.f3 ef3 17.Rf3= (< 17.Bf3 Qc7 18.Ne5 Ne5 19.de5 Be5 20.Be5 Qe5-/+)) 16.Nc3 (16.f3 Re8=) 16...Nb6 (16...Re8 17.f3=+) 17.Ne3 (17.Ne5 Re8=) 17...Qd6 18.g3 Rd8 (18...Bh3 19.Re1=) 19.Qc2 (better is 19.f3 ef3 20.Bf3 Qd4 21.Ncd5 Qd1 A) 22.Nd1?? Nfd5 (22...Rd5?! 23.Bf6 gf6 24.Bd5 Nd5 25.Nf2-+) 23.Nf2 Nc4-+; B) 22.Nf6 gf6 23.Nd1=) 19...g6?? (better is 19...Qe7=) 20.Ne4+/– Ne4 21.Qe4 f5 22.Qe5 (22.Qf3 Qc7+/–) 22...Qd7?? (better is 22...Be6+/–) 23.Qb8+- ½–½. Steiner,Peter Markus – Wenzel,Hans Peter, Baden–ch JS Eppingen, 2004.

12.d4 cd4 13.ed4 e4 14.Ne5 Qc7 15.b6 (15.Nc3 dc4 16.Nc4 (16.b6 Nb6 17.Nb5 Qb8 18.Nd6 Qd6 19.Nc4 Nc4 20.Bc4 Bd7 21.Qe2 Rc8) 16...Bh2 17.Kh1 Bf4 18.g3 Bg5 19.d5 b6 20.Na4 Qa7 21.Bc3 Bb7; 15.cd5 Ne5 16.de5 (16.b6 Qe7 17.de5 Be5 18.Nc3 Bd7 19.Qb3 Qd6 20.h3 Rc8 21.Rd1 Qc5) 16...Be5 17.Nd2 Ba1 18.Qa1 Qc5 19.Qa2 Bf5 20.Nb3 Qd5 21.Rd1 Qe5) 15...Qb8 (worse is 15...Nb6 16.c5+/– Bc5 17.dc5 Qc5 18.Bd4 Qb4 19.Nc3 Rd8 20.Qd2 Nc4 21.Nc4 dc4) 16.Nc3 dc4 (16...Nb6 17.c5+- Be5 18.de5 Qe5 19.cb6 Be6 20.Nb5 Qg5 21.Qc1 Qg6; 16...Ne5 17.de5 Be5 18.Nd5 Bh2 19.Kh1 Be5 20.Nf6 Bf6 21.Bf6 gf6) 17.Bc4 (17.Nc4 Bh2 18.Kh1 Qf4 19.g4 h5 20.Qd2 hg4 21.Qf4 Bf4) 17...Ne5 (17...Be5 18.de5 Ne5 19.Be2 Neg4 20.g3 Qe5 21.Nb5 Qh5) 18.de5 Be5 19.Nd5 (19.h3 Bf5 20.Nd5 Qd6 21.Be5 Qe5) 19...Bh2 20.Kh1 Be5 21.Nf6 Bf6 22.Bf6 gf6 23.Bd5 Qe5 24.Re1 f5 25.Re3 Kg7 26.Qd2 h6 27.Rg3 Kf6 28.Qh6 Ke7 29.Qg5 Qf6 30.Qf6 Kf6 31.Rc3 Rd8 32.Rc5 Rd6 33.g4 fg4 34.Be4 Rb6?? (better is 34...Be6 35.Rb5 Bc4-/+) 35.Rc8 +=. usingprogram – laur60, internet, 2011.

12.d4 e4 13.Nfd2 cd4 14.Bd4 dc4 (14...Qc7 15.h3 Bh2 16.Kh1=) 15.Nc4+= Bb8 16.g3 (16.b6 Qe7+=) 16...Re8 17.Nc3 Qe7 18.Qc2 h5 (18...Qe6 19.Rd1+=) 19.Ra1 Nf8 20.Ra8 Bg4 (20...Bf5 21.Bf6 Qf6 22.Bh5+=) 21.Bf6 gf6 22.Bg4 (22.Bf1 Nd7+-) 22...hg4+= 23.Nd5 Qe6 24.Qd1 Rd8 (better 24...Kg7 25.Ndb6 f5+=) 25.Qg4!+- Qg4 26.Nf6 Kg7 27.Ng4 Rd1 (27...f5 28.Nge5+-) 28.Kg2 Bc7? (better 28...Nd7 29.Nb6! Bc7 30.Nd7 Rd7 31.Rg8 Kg8 32.Nf6 Kg7 33.Nd7 Bd6+-) 29.b6 (29.b6 Bd8 30.Rb8+-) 1–0. Schumacher,Dirk (2035) – Schinke,Andreas (2035), Mecklenburg VP LL, 2006.

12.d4 e4 13.Ne5 Qc7 14.cd5 Ne5 (14...Be5? 15.de5 Ne8 16.d6+-; 14...Nd5?! 15.Nd7 Qd7 16.dc5 Bc5 17.Qc2+=) 15.de5 Be5 16.Be5 Qe5 17.Qb3 Nd5 18.Rd1 Be6 19.Bc4 Nc7 20.Be6 Qe6 21.Qb2 h6 22.g3 Nd5 23.Nd2 Nb4 24.Nb3 Nd3 25.Qc3 b6 26.Nc1 Qg4 27.Qc2 Ne5 28.h3 Nf3 29.Kg2 Qe6 30.Ne2 Ra8 31.Nf4 Qf5 32.Rd5?? (better is 32.Qc4-/+) 32…Qd5!!-+ (32...Qd5 33.Nd5 Ne1 34.Kf1 Nc2 35.Nb6 Rb8-+) 0–1. Vuojolainen,Kari – Tuononen,Janne, Joensuu We JoeSK op, 2004.

12.cd5 e4 13.Ne1 Nd5 14.d3 N7f6 15.Nd2 Bf5 16.Nc4 Bc7 17.f3 ed3 (17...ef3 18.Bf3 Be6 19.Bb2=) 18.Nd3 Nd7 (18...Be6 19.Nc5 Bh2 20.Kh2 Qc7 21.Be5 Qc5 22.Bd6 Qb5 23.Bf8=) 19.e4+= ½–½. Woschkat,Karl_Heinz – Carstens,Michael, DESC, 2001.

12.cd5 e4 13.Ng5 h6 14.Nh3 =+.

12.cd5 e4 13.Nh4 =+.

13.Qb3 N5f6 14.d3 Qe7 15.Nbd2 Nb6 16.Bc3 Be6 17.Qc2 Bd7 18.Ra1 Nfd5 19.Ba5 Bb8 (worse is 19...Bb5 20.Qb3 Ba4 21.Ra4 Na4 22.Qd5+/–) 20.Qb2 Nc8 21.Nc4 White prepares the advance b6. e5 becomes the focus of attention 21...Re8 22.Nfd2 Bc7 23.Bc7 Nc7 Exerts pressure on the isolated pawn 24.b6 Nd5 25.Bf3 Bc6 26.Ra8 f6 27.Qb3 Kf8 28.Be4 Nd6 (28...Qe6 29.Qa3+/–) 29.Re8 Ke8 30.Nd6 Qd6 31.Nc4 ½–½. Ree,Hans – Pfleger,Helmut, NED–FRG Hengelo, 1968.

13.Nc3 Nc3 14.dc3 Nb6 15.Qc2 c4 16.Rd1 Qc7 17.Ng5 f5 18.e4 f4 (18...Qc5 19.Qb1=+) 19.Nf3-/+ Bd7 20.Qd2 Be7 21.Bc4 (21.Qb2 Qc5-/+) 21...Qc4 22.Ne5 Qb3 23.c4 (23.Nd7 Rd8 24.Qe2 Rd7-+) 23...Be6 24.Qd4 Bc5! 25.Qd2? (25.Qc5 Qd1) 25...Nc4 (25...Bc4 26.Rc1 Kh8 27.Nc4 Nc4 28.Qd7 Bf2 29.Kf1 Ne3 30.Ke2-+) 26.Nc4 Bc4 (26...Qc4?! 27.Rc1 Qb4 28.Qb4 Bb4 29.Be5-+) 27.Rc1 b6 (27...Qb5 28.Qc3 Kf7 29.Qg7 Ke6 30.Qh6 Kd7 31.Rd1 Kc8 32.Qh3 Kb8 33.Bg7-/+) 28.Qd7 Bf2! 29.Kh1 (29.Kf2 Qe3) 29...Bf7 30.Qg4 Bg6 31.Qd7 Qf7 32.Qd3 (32.Qf7 Rf7 33.e5 Bf5-+) 32...f3 (32...Be3 33.Rb1 f3 34.Qe3 Qa2 35.gf3 Qb1 36.Kg2 Qa1 37.Qb3 Kh8-+) 33.Rf1 (33.Qf3 Qf3 34.gf3 Rf3 35.Rc8 Kf7 36.Rc7 Ke8 37.Rc8 Kd7 38.Rc4-+) 33...fg2 34.Kg2 Qa2 (34...Qe6 35.Rf2 Be4 36.Kg3 Bd3 37.Rf8 Kf8 38.Bg7 Kg7 39.Kf3 Qe2 40.Kf4 Qf2 41.Ke5 Qe3 42.Kd6 Qc5 43.Kd7 Bf5 44.Kd8 Qd6 45.Ke8 Bg6) 35.Qd5 Qd5 36.ed5 Be4 37.Kh3 h5 38.Bg7 (38.Rf2 Rf2 39.d6-+) 38...Rf3 39.Kg2 Rf4 40.Kh3 Rh4# 0–1. Scholz,G – Kranzl,A, corr ICCF EU/M/GT/037 (year?).

13.Nc3 Nc3 14.dc3 Qc7 15.Qd3 =.

13.Nc3 Nc3 14.dc3 Qe7 15.e4 Nf6 (15...Nb6 16.c4=) 16.Nd2 Rd8 (16...Be6 17.Qc2=) 17.Qc2 Bc7 (17...Ng4 18.c4=) 18.Nc4 (18.c4 Be6=) 18...Be6 19.Ne3 Ra8 (19...Ba5 20.Bb2=) 20.c4+= g6 (20...Bd6 21.Rd1+=) 21.Bb2 (21.Rd1 Bd6+=) 21...Ne8 (21...Bd7 22.Rd1+=) 22.Nd5+/– Bd5 23.ed5 Nd6 24.Bd3 e4 25.Qc3 f6 26.Be2 Kg7 27.Ra1 Ra1 28.Ba1 Nf5 29.Qa3 b6 30.g3 h5 31.Bf1 h4 32.Bh3 e3= 33.fe3 hg3=+ 34.hg3 Ng3 35.Be6+= Qd8 36.Qa7 Ne4= 37.Qa2 Qh8 38.d6+= Bd6 39.Qa7= Kh6 40.Qb7 Ng3 41.Qf3 Nh5 42.Bg4 Qg8 43.Bh5= gh5 44.Kh1 Be5 45.Be5= fe5 46.Qf6 Qg6 47.Qh8 Kg5 48.Qe5 Qf5 49.Qg3 Qg4 50.Qe5 Kh4 51.Qf6 Kg3-+ 52.Qd6 Kf3 53.Qf6 Ke3 54.Qb6 Qh4 55.Kg1 Qg5 56.Kf1 Qf4 57.Kg1 Qf2 58.Kh1 Qf1 59.Kh2 Qf4 60.Kg1 Qg5 61.Kf1= ½–½. Hirth,U – Storm,R, Biel–op, 1992.

13.Nc3 N5f6 14.Qa4 (14.Qc2 Qe7=) 14...Qc7 (14...Re8 15.d3=) 15.Qh4= h6 (15...Rd8 16.Rd1=) 16.h3 (16.Rc1 Rd8=) 16...b6 17.d3 Bb7 18.Nd2 Ra8 19.Nc4 +=. Katalymov,Boris – Nurmamedow, SU–ch sF, 1960.

10.Qb3 0-0=+ 11.Na3 b6 12.Be2 =+.

10.Qb3 0-0=+ 11.Na3 Qe7 12.d3 d4 13.Nc2 (13.Be2 e5=+) 13...e5 (13...de3 14.fe3 e5 15.Qc3=+) 14.e4 (14.Be2 Rd8=+) 14...Bc7-/+ (15.Be2 Ba5 16.Kf1 Qe6=+). Hecht – Teschner, Berlin, 1957.

10.Qb3 0-0 11.d3 b6 12.Be2 (12.Nbd2 A) 12...Qe7 13.Be2 (13.Bc3 Bb7 14.Be2 e5 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1 e4 18.Ne1 Bc7 19.de4=) 13...Bb7 14.0-0 e5 15.Bb2 Ra8 16.Ra1 Ra1 17.Ba1 e4 18.Ne1 Qe6 19.Qc2=; B) 12...Bb7 13.Be2 (13.Qc2 Qc7 14.cd5 ed5 15.Be2 Ra8 16.0-0 Ng4 17.g3 Qd8 18.Bc3 Qe7 19.d4+=) 13...Qe7 14.0-0 Ra8 15.Bc3 e5 16.Ra1 Ra1 17.Ba1 e4 18.Ne1 Qe6 19.Qc2=) 12...Bb7 (12...Qc7 13.cd5 (13.0-0 Bb7 14.Nbd2 Ra8 15.Bc3 e5 16.cd5 Nd5 17.Ra1 Nc3 18.Ra8 Ba8 19.Qc3+=) 13...ed5 14.0-0 Bb7 15.Rc1 Ra8 16.Bc3 Qd8 17.Qc2 Qe8 18.Nbd2 d4 19.Nc4+=) 13.0-0 (13.Nbd2 Qc7 14.0-0 Ra8 15.Bc3 e5 16.cd5 Nd5 17.Ra1 Nc3 18.Ra8 Ba8 19.Qc3=) 13...Qc7 14.Nc3 (14.Nbd2 Ra8+= 15.Bb2 Ng4 16.h3 Nge5 17.Ra1 Ra1 18.Ba1 dc4 19.dc4=) 14...Ne5 (14...d4!? 15.ed4 cd4-/+ (15...Bf3 16.Bf3 Bh2 17.Kh1 Qf4 18.Re1 cd4 19.Ne4-/+) 16.Nd4 Bh2 17.Kh1 Qf4 18.Nf3 Bf3 19.gf3-+; 14...dc4 15.dc4 Bf3 16.Bf3 Bh2 17.Kh1 Bd6 18.Rd1 Ne5 19.Ne4-/+) 15.Ne5= Be5 16.f4 Bd6 17.g3 (17.Bf3 dc4 A) 18.Qc4 Bf3 (18...Ra8= 19.Bb7=) 19.Rf3=; B) 18.dc4 Bf3 19.Rf3=) 17...dc4 (17...d4 18.Ne4 Ne4 19.de4+=; 17...Ra8 18.Bb2 Be7 19.Bf3+=) 18.dc4= Rd8 (18...Re8 19.Rd1=) 19.Qc2 Be7 20.e4 Rd7 21.e5 Ne8 22.Rd1 (22.Bd3 h6=) 22...Rd1 23.Qd1 Qd8 (23...Ba8 24.Bd3=) 24.Qd8+= Bd8 25.Kf2 f5 26.Bf3 (26.g4 g6+=) 26...Bf3+= 27.Kf3 h5 (27...g5 28.h3+=) 28.Bb2 Kf7 29.Bc1 Bc7 30.Be3 g6 31.Na4+/– Ke7 32.h3 Ng7 33.Bf2 Kd7+= 34.Nc3 Bd8 35.Nd1 Ke8 36.Ne3 Kf7 37.Ng2 Be7 38.Ke2 Ke8 39.Ne1 Bd8 40.Nf3 Kf7 41.Ng5 Ke7 42.Kf3 Kd7 43.Nh7 Ke7 44.Nf6 Bc7 45.Ke2 Ne8 46.Nh7 Ng7 47.Nf6 ½–½. Bennett,Hilton (2070) – Goodhue,Nathan, Open, Auckland NZL, 2003. (=1.Nf3 Nf6 2.b4 e6 3.b5 d5 4.Bb2 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.e3 Bd6 9.c4 Nbd7)

10.Qb3 0-0 11.d3 dc4 A) 12.dc4 A1) 12...e5 13.Be2 (13.Qd3 Qc7 14.e4 Rd8 15.Be2 Nh5 16.0-0 Nf4 17.Qe3 Nb6 18.Bc3 Bg4 19.Nbd2=) 13...e4 14.Nfd2 Re8 15.0-0 Qc7 16.h3 Bh2 17.Kh1 Be5 18.Be5 Qe5 19.Nc3=; A2) 12...Qe7 13.Bd3 (13.Be2 e5 14.0-0 Rd8 15.Qc2 e4 16.Nfd2 b6 17.Rd1 Bb7 18.Bc3 Qe6 19.Nb3+=) 13...e5 14.e4 Nh5 15.0-0 Nf4 16.Nc3 Nf6 17.Nd5 N6d5 18.cd5 Qf6 19.Bc4+=; B) 12.Qc4 B1) 12...Re8 13.Nbd2 (13.Be2 b6 14.Nbd2 e5 15.0-0 Qe7 16.Bc3 Bb7 17.Ra1 Nd5 18.Bb2 Nc7 19.e4=) 13...e5 14.Ng5 Re7 15.Be2 Nb6 16.Qh4 Bf5 17.0-0 Rd7 18.Ngf3 Qe7 19.Bb2=; B2) 12...Nb6 13.Qc1 (13.Qc2 Nbd5 14.Qc1 Qa5 15.Nbd2 Bd7 16.e4 Nb4 17.e5 Nc2 18.Qc2 Qa1 19.Ke2-/+) 13...Bd7 14.Na3 Nbd5 15.e4 Bf4 16.Nd2 Nc7 17.Qc5 Bb5 18.Nb5 Bd2 19.Ke2=.

10.Qc2 0-0 11.d3 e5 12.Be2 d4 13.0-0 Qe7 14.Re1 de3 15.fe3 e4 16.de4 Ne4 17.Bd3 f5 18.Nc3 (18.Nbd2 Re8=) 18...Ndf6=+ 19.Nd5 Nd5 20.cd5 h6 21.Bb2 b6 22.Bc4 Kh7 23.g3 Re8 24.Qd3 Bb8 25.Bb3 Qf7 26.Ra1 Qg6 27.Nh4 Qd6 28.Qe2 Ng3 (28...Re7 29.Bc4=+) 29.hg3= Qg3 30.Ng2 Re4 (30...Bf4 31.Bc1=) 31.d6 (31.Ra4!? Bd6 32.Re4 fe4 33.Bc2+=) 31...Rg4 32.Qf2 (32.Bd5!?=+) 32...Qd6 (worse 32...Bd6 33.Qg3 Bg3 34.Ra7=+) 33.Bd1 Qh2 34.Kf1 Rb4 35.Bc3 Be6 36.Bb4? (better 36.Bc2 Bc4 37.Ke1-+) 36…Bg3 (36...Bg3 37.Qg3 Qg3-+) 0–1. Rooijen Van,Peter (1645) – Zhdanenia,Konstantin A (1870), SD–2011–0-00123, 2011.

10.Qc2 b6 11.Be2 Bb7 12.0-0 Qc7 13.cd5 ed5 14.Qf5 0-0 15.Rc1 Re8 16.g3 Ne5 (better 16...h6=+) 17.Ne5+= Be5 18.d4 Bd6 1-0. onur604 (2320) - rook333 (1940), lichess.org, 2020.

10.Nc3 0-0 A) 11.d4 A1) 11...cd4 12.Nd4 (12.Qd4 Qa5 13.Bb2 Bb4 14.Nd2 e5 15.Qd3 Nc5 16.Qc2 Nfe4 17.Nce4-+) 12...Nb6 13.cd5 Nbd5 14.Nd5 Nd5 15.Nb3 e5 16.Be2 Be6 17.0-0=+; A2) 11...dc4 12.Bc4 (12.dc5 Nc5 13.Bc4 Qc7 14.Qc2 Rd8 15.0-0 b6 16.Ne2 e5 17.Ng3=+) 12...Qc7 13.dc5 Nc5 14.Qe2 b6 15.0-0 Bb7 16.h3 Nfd7 17.Rd1=; A3) 11...Qa5 12.Qa4 Qc7 13.cd5 ed5 14.dc5 Nc5 15.Qd1 Qa5 16.Ke2 Bd7 17.Nd4-+; B) 11.d3 B1) 11...Ne5 12.Be2 (12.Nd2 d4 13.Nce4 Ne4 14.Ne4 Qa5 15.Ke2 Qb6 16.Nd6 Qd6 17.Ke1=+; 12.Ne5 Be5 13.d4 cd4 14.ed4 Bf4 15.c5 e5 16.Be2 Re8 17.Na4=+; 12.Nb1 Nf3 13.Qf3 e5 14.cd5 Bg4 15.Qg3 Qa5 16.Bc3 Qa2 17.Nd2-/+) 12...d4 13.Nb1 Nf3 14.Bf3 e5 15.0-0 Qc7 16.Nd2 Bf5 17.Qb3=+; B2) 11...Qc7 12.Be2 (12.Qb3 Qb6 13.Nd2 Qa5 14.Qa2 Qa2 15.Na2 b6 16.Nc3 Bb7 17.Bb2=+; 12.cd5 ed5 13.Be2 Re8 14.0-0 Nb6 15.Bb2 Be6 16.Qc2 Ra8 17.Ra1=; 12.Qc2 Rd8 13.Be2 Nb6 14.cd5 ed5 15.h3 d4 16.Nd1 Nbd5 17.0-0=+) 12...dc4 13.dc4 Rd8 14.Bd3 b6 15.Ne4 Ne4 16.Be4 e5 17.Bd5=; B3) 11...Qb6 12.Nd2 (12.Be2 d4 13.Na2 de3 14.fe3 Ng4 15.Qd2 Qc7 16.Nc3 Bh2 17.Kf1-/+; 12.Na4 Qc7 13.cd5 Nd5 14.Nc3 N7f6 15.Bb2 Bd7 16.Ne4 Be7 17.Qa4=+; 12.d4 Qa5 13.Qa4 Qc7 14.cd5 ed5 15.dc5 Nc5 16.Qd1 Qa5 17.Ke2-+) 12...Rd8 13.Qb3 Be5 14.f4 Bc7 15.cd5 ed5 16.Nd5 Nd5 17.Qd5=+.

10.Nc3 b6 11.d3 A) 11...0-0 12.cd5 (12.d4 dc4 13.Bc4 Bb7 14.dc5 Nc5 15.Ne2 Bf3 16.gf3 e5 17.Ng3=+; 12.Be2 Bb7 13.cd5 ed5 14.0-0 Qe7 15.Qa4 Ne5 16.Ne5 Qe5 17.Qh4=+; 12.Qd2 Bb7 13.cd5 ed5 14.Be2 d4 15.ed4 cd4 16.Ne4 Ne4 17.de4=+) 12...ed5 13.Be2 Re8 14.0-0 Qc7 15.d4 c4 16.Qc2 Nb8 17.Bb2=; B) 11...Qe7 12.Qd2 (12.Be2 0-0 13.0-0 Bb7 14.Qc2 Ra8 15.Rc1 e5 16.cd5 Nd5 17.Qb3=+; 12.Bb2 0-0 13.Be2 Bb7 14.0-0 Ra8 15.Qc2 e5 16.Ra1 Ra1 17.Ba1=+; 12.d4 Bb7 13.dc5 bc5 14.cd5 ed5 15.Be2 0-0 16.0-0 Ra8 17.Qd2=+) 12...0-0 13.Be2 Bb7 14.0-0 e5 15.cd5 Nd5 16.Ne4 Ra8 17.Nh4=; C) 11...Bb7 12.cd5 (12.Be2 0-0 13.cd5 ed5 14.0-0 Qe7 15.Bb2 Ra8 16.Qd2 d4 17.ed4=+; 12.d4 dc4 13.Bc4 cd4 14.Qd4 Qc7 15.e4 Ne5 16.Be2 0-0 17.Bb2=+; 12.Bb2 0-0 13.Be2 dc4 14.dc4 Qc7 15.Bd3 Bf3 16.gf3 Ne5 17.Be2=+) 12...ed5 13.Be2 Qe7 14.0-0 0-0 15.Qa4 Ne5 16.Ne5 Qe5 17.Qh4=+.

10.Nc3 b6 11.d4 A) 11...dc4 12.Bc4 (12.dc5 Nc5 13.Bc4 Bb7 14.Nb1 Nce4 15.0-0 0-0 16.Qe2 Qc7 17.Bf6=+; 12.Bb2 Bb7 13.Bc4 cd4 14.Nd4 Qc8 15.Nf3 Bf3 16.Qd6 Bg2 17.Rg1=+; 12.e4 cd4 13.Qd4 Bc5 14.Qc4 Ng4 15.Nd1 0-0 16.e5 Nh6 17.Qe4=) 12...cd4 13.Nd4 Qc7 14.Be6 fe6 15.Ne6 Qb8 16.Ng7 Kf7 17.Nf5=; B) 11...Qc7 12.cd5 (12.dc5 Bc5 13.cd5 Bb4 14.Qd4 Nd5 15.Bc4 Nc3 16.Bc3 Bc3 17.Qc3+=; 12.Be2 cd4 13.Qd4 e5 14.Qd1 dc4 15.Nd2 0-0 16.Nc4 Be7 17.0-0=) 12...ed5 13.dc5 Qc5 14.Bd3 Qc7 15.Bf5 Bb4 16.Qd4 Qc4 17.Kd1+=; C) 11...0-0= 12.dc5 (12.cd5 ed5 13.dc5 bc5 14.Bd3 Nb6 15.0-0 Re8 16.Qc2 c4 17.Be2=; 12.Bd3 dc4 13.Bc4 Bb7 14.dc5 Nc5 15.Ne2 Bf3 16.gf3 e5 17.Ng3=+; 12.Be2 dc4 13.Bc4 Bb7 14.0-0 Bf3 15.gf3 cd4 16.Qd4 Qc7 17.f4-/+) 12...bc5 13.Bd3 Nb6 14.Na4 Ne4 15.Nb6 Qb6 16.0-0 Bb7 17.Be5=.

10.Nc3 b6 11.Be2 Bb7 (11...dc4 A) 12.0-0 Bb7 13.Bc4 Qc7 14.h3 0-0 15.d3 Ra8 16.Bb2 Ra7 17.e4=+; B) 12.Bc4 Bb7 13.0-0=+ (13.d3 0-0 14.Bb2 Ng4 15.Ne4 Be5 16.Qc2 Bb2 17.Qb2=+) 13...Qc7 14.h3 0-0 15.d3 Ra8 16.Bb2 Ra7 17.e4=+; C) 12.Bb2 Bb7 13.Bc4 0-0 14.d3 Ne5 15.Ne5 Be5 16.0-0 Nd5 17.Bd5=; 11...0-0 12.cd5 (12.d4 dc4 13.e4 Bc7 14.0-0 Bb7 15.d5 ed5 16.ed5 Ne5 17.Ne5-/+; 12.d3 Bb7 13.cd5 ed5 14.0-0 Qe7 15.d4 c4 16.Nh4 Qe6 17.Qc2=+; 12.0-0 dc4 13.Bc4 Bb7 14.d3 Qc7 15.h3 Ra8 16.Bb2 Rd8 17.Nd2=+) 12...ed5 13.0-0 Re8 14.Qc2 Qc7 15.Rc1 Ne5 16.Ne5 Re5 17.f4=) 12.0-0 (12.cd5 Nd5 (12...ed5 13.d4 c4 14.0-0 0-0 15.Qc2 Qe7 16.Nh4 Bb4 17.Nf5=) 13.Ne4 Bc7 (13...Be7=+ 14.d3 0-0 15.0-0 f5 16.Nc3 Bf6 17.d4=) 14.0-0 0-0 15.Qc2 Nb4 16.Qc3 e5 17.d3=; 12.d3 0-0 13.cd5 ed5 14.0-0 Qe7 15.Bb2 Ra8 16.d4 c4 17.Qc2=+) 12...Qc7 (12...dc4 13.Bc4 0-0 (13...Qc7 14.h3 0-0 15.d3 Ra8 16.Bb2 Ra5 17.e4=+) 14.Qe2 (14.d3=+ Qc7 15.h3 Ra8 16.Bb2 Rd8 17.Re1=+) 14...Qc7 15.h3 Bf3 16.Qf3 Ne5 17.Qe2=+) 13.h3 (13.cd5 ed5 14.d4 0-0= 15.Qd3 Ra8 16.Rc1 c4 17.Qf5=) 13...0-0 (13...d4 14.Na4 (14.ed4 Bf3 15.dc5 Bh2 16.Kh1 Be2 17.Ne2=+) 14...e5 15.Nh4=+ 0-0 16.Nf5 Rd8 17.f4=+; 13...dc4 14.Bc4 0-0 15.d3 Rd8 16.e4 Ne5 17.Qe2=+) 14.d3 (14.cd5 Nd5 15.Qb1 Ne5 16.Ne5 Be5 17.f4=+) 14...Rd8 (14...Ra8 15.Qc2 e5 16.Nd2 d4 17.Nce4=+) 15.Qb1 (15.Qc2 e5 16.cd5 Nd5 17.Ne4=+) 15...Ne5 (15...e5 16.cd5 Nd5 17.Rc1=+) 16.cd5 (16.Ne5 Be5 17.f4=+) 16...ed5 17.Ne5 (17.d4 Nf3 18.Bf3 c4=+) 17...Be5 18.Rc1 (18.Bf3 Ra8=+) 18...d4-/+ 19.Nd1 Nd5 (19...Qe7 20.Rc2-/+) 20.ed4 (20.Bf3!?=+) 20...Nf4-/+ 21.Bf1?? (better 21.Qc2 Bd4 22.Bd4 Rd4 23.Ne3-/+) 21...Nh3-+ (21...Bd4?! 22.Bd4 Rd4 23.Ne3-/+) 22.Kh1 Bf4 (22...Bh2 23.d5 Bg1 24.g3 Bf2 25.Bg2 Qg3 26.Qb2 Bd5 27.Qg7 Qg7 28.Bg7 Kg7 29.Rb1-+) 23.Rc2? (better 23.dc5 Bc1 24.Qc1 Qc5 25.Qc5 bc5 26.Bc3-+) 23...Qe7 24.f3 (24.d5 Qe1 25.Nc3 Nf2 26.Rf2 Qf2 27.Qc1 Qh4 28.Kg1 Bh2 29.Kh1 Bg3 30.Kg1 Qh2) 24...Qe1 25.Nc3 Qg3 (25...Qg3 26.gh3 Bf3 27.Bg2 Qh2) 0–1. Rebber,Christian (2150) – Sandipan,Chanda (2510), 19th Muensterland Open, Senden GER (2), 2002.

10.Nc3 b6 11.Be2 dc4 12.Bc4 Bb7 13.0-0 =+.

10.Nc3 Nb6 A) 11.cd5 ed5 12.d3 (12.Be2 0-0 13.Qc2 Re8 14.0-0 Bg4 15.h3 Bh5 16.d3 Qe7 17.Re1=+; 12.Bd3 0-0 13.0-0 Re8 14.Qc2 Qc7 15.Bf5 Bf5 16.Qf5 Qd7 17.Qd7=+; 12.d4 c4 13.Be2 Bf5 14.0-0 0-0 15.Bb2 Qe7 16.Qd2 Ra8 17.Ne5-/+) 12...0-0 13.Be2 Bf5 14.0-0 Qe7 15.Bb2 Ra8 16.Qc2 c4 17.Ra1=+; B) 11.d3=+ B1) 11...e5 12.Na4 (12.cd5 Nbd5 13.Nd5 Nd5 14.Ne5 Qa5 15.Ke2 Qa2 16.Ke1 Nb4 17.Bc3=+) 12...Bg4 13.Be2 Nbd7 14.0-0 0-0 15.cd5 Nd5 16.Nc3 Be6 17.Ne4=; B2) 11...0-0 12.Bb2 (12.Qb3 Bc7 13.Be2 d4 14.ed4 cd4 15.Ne4 e5 16.0-0 Ne4 17.de4=+; 12.Be2 e5 13.cd5 Nbd5 14.0-0 Nb4 15.Bb2 Bf5 16.Qd2 Qd7 17.Ra1=; 12.Na4 Nbd7 13.Be2 dc4 14.dc4 Qe7 15.Nc3 e5 16.e4 Rd8 17.0-0=) 12...dc4 13.dc4 e5 14.Bd3 e4 15.Ne4 Ne4 16.Be4 Nc4 17.Bh7+=; B3) 11...Qe7 12.Na4 (12.Be2 0-0 13.0-0 Rd8 14.Qc2 e5 15.cd5 Nbd5 16.Nd5 Nd5 17.Rc1=; 12.Qc2 0-0 13.Be2 e5 14.cd5 Nbd5 15.Ne4 Nb4 16.Qc3 Nfd5 17.Qb3=; 12.e4 Nfd7 13.Be2 d4 14.Na4 Na4 15.Qa4 0-0 16.0-0 f5 17.ef5=+) 12...Nbd7 13.Be2 0-0 14.Nc3 dc4 15.dc4 Rd8 16.0-0 e5 17.e4=.

10.d3 dc4 11.dc4 Qe7 12.Bd3 0-0 13.0-0 e5 14.e4 Rd8 (14...Nb6 15.Nc3=) 15.Nc3 Nb6 16.h3 (16.Re1 Bg4=) 16...h5 (16...Qd7!?=) 17.Re1+= (White fights for the initiative) 17...Bc7 (17...Nbd7 18.Nd5 Qe6 19.Ng5+/–) 18.Nd5+/– Nbd5 19.ed5 Re8 (19...Nd7 20.Bf5+-) 20.Ne5 Qd6 21.Nf3 Re1 (21...Bd7 22.Re8 Ne8 23.Be5+-) 22.Qe1 Bd7 (22...Kf8 23.Qe3+-) 23.Qe5 (23.Qe3 Ne8+-) 23...Qe5 24.Ne5 b6 (24...Kf8 25.Kf1+-) 25.Kf1 (25.f4 g6+-) 25...Kf8 26.Ke2 g5 (26...Bc8 27.Nc6+-) 27.Nf3 (27.Nd7?! Nd7 28.Ke3 Be5 29.Be5 Ne5+-) 27...g4 (27...Ke7 28.Ng5 Ne8 29.Nf3+-) 28.Bf6 gf3 29.Kf3 Ke8 30.Ke4 (30...Bd8 31.Bd8 Kd8 32.Kf4+-) 1–0. Sternik,Ryszard – Wilk, corr Poland, 1994.

10.d3 e5 11.Be2 d4 12.ed4 (12.0-0 0-0=) 12...ed4=+ 13.0-0 0-0 14.Ng5 Qc7 15.g3 Ne5 16.Nd2 Re8 17.Kh1 ½–½. Rosner,Dirk – Heinrich, corr, 1989.

10.d4 0-0 11.Nc3 (11.cd5 Nd5 12.Nc3 N7f6=) 11...Qa5 (11...cd4 12.Qd4 Qa5 13.Bb2-+) 12.Qa4 Qc7 13.Qb3 (13.cd5 ed5 14.Be2 c4=+) 13...cd4-/+ 14.Nd4 Nc5 (14...e5 15.Nf3 dc4 16.Bc4=+) 15.Qc2 Qa5 (worse 15...Bh2 16.b6 Qb8 17.cd5+=) 16.Qa2 (16.Bb2 e5 17.Nf3 Nce4-/+) 16...Qa2 (16...Bc7!? 17.Qa5 Ba5-/+) 17.Na2=+ Bd7 18.Nf3? (18.Nc2!? Ra8 19.Nc1=+) 18...Nfe4 (18...Ra8 19.Bf6 Ra2 20.Be5 Be5 21.Ne5 dc4 22.Nd7 Nd7 23.Be2-+) 19.Nc3 (better 19.Bd4 Ra8 20.Nc1 dc4 21.Bc4-/+) 19...Ra8-+ 20.Bb2 Nc3 21.Bc3 Ne4 22.Bd2 (22.Ne5 Bb5!! 23.cb5 Nc3 24.Nd3-+) 22...Ra1 23.Ke2 dc4 (23...Nd2 24.Kd2 dc4 25.b6 Bb4 26.Kc2 Ba4 27.Kb2-+) 24.Nd4 Ra2 25.Nf3 (25.f3 Nd2 26.Ke1-+) 25…c3 (25...c3 26.Kd3 cd2 27.Nd2 Nf2 28.Ke2 Nh1-+; 25...Bb5 26.Nd4 c3 27.Kf3 Nd2 28.Kg4 Bf1 29.Kh3-+) 0–1. Berlik,Jan – Buczinski,Henryk, Siemianowice Slaskie Poland, 1966.

10.d4 0-0 11.Nc3 cd4 12.Qd4 Qa5 13.Bb2 -+.

10.d4 0-0 11.cd5 Nd5 12.Nc3 N7f6 =.

10.d4 cd4 11.Bd4 0-0 =.

10.Be2 Qc7 11.0-0 0-0 (11...e5 12.Nh4=+) 12.d3 dc4 13.dc4 b6 14.Nbd2 Bb7 15.Qc2 Ra8 16.Bb2 Ne5 (16...Ng4 17.h3 Nge5 18.Rd1=) 17.Ra1 (17.Be5!? Be5 18.Ne5 Qe5 19.Rd1=) 17...Ra1=+ 18.Ba1 Neg4 (18...Nf3!? 19.Bf3 Bh2 20.Kf1 Bd6=+) 19.h3= Ne5 20.Qa2 h6 21.Qa7 (21.Ne5 Be5 22.Bf3 Ba1 23.Bb7 Qb7 24.Qa1 Kh8=) 21...Nf3 22.Nf3 Nd7 23.Bc3 Be4 24.Qa1 f6 25.Nd2 Bh7 26.Qa8 Kf7? (26...Nf8 27.Ne4+=) 27.Bf3 (better 27.Bh5 Bg6 28.Bg6 Kg6 29.Qe8 Kh7 30.Qe6 Bh2 31.Kh1+-) 27...e5?? (better 27...Qb8+=) 28.Bd5+- Ke7 29.Qh8 (29.Qh8 Bc2 30.Qg7 Kd8 31.Be4 Be4 32.Ne4+-) 1-0. Mely (2250) - le_samourai (2280), ChessWorld.net, 2016.

10.Be2 Qc7 11.d4 cd4-/+ 12.Nd4 (12.Bd4 e5 13.Bb2 dc4+=) 12...Bb4 (12...dc4 13.Nd2 Bb4+=) 13.Bc3 Bc3 14.Nc3 dc4 (14...Nb6 15.Qc2+=) 15.0-0+= 0-0 16.Qc2 (16.Na4 e5 17.Nf5 c3 18.Ne7 Kh8+=) 16...Nb6-/+ 17.Rc1 e5 18.Nf3 Be6 (18...Bg4 19.Na4 Na4 20.Qa4-/+) 19.Ng5 Rc8 (19...g6 20.Ne6 fe6 21.Na4=) 20.Ne6 (20.Nce4!? Nfd7 21.Ne6 fe6 22.Bg4=) 20...fe6-/+ 21.Ne4 Ne4 22.Qe4 c3 23.Bd3 (23.Bg4 Qd6 24.Rd1 Nd5-/+) 23...g6-/+ 24.h4 Nd5 (24...Rd8 25.Bc2-/+) 25.Qg4 (25.h5 gh5 26.Qh4 Qf7+=) 25...Re8 (25...Qd7!?-/+) 26.h5+= Nf6 27.Qg5 (27.Qa4!?+=) 27...Nh5-/+ 28.Qg4 Rc8 (better is 28...Nf6 29.Qc4 Qc4 30.Bc4 Kf8-/+) 29.Qe6+= Kg7 30.b6 Qc6 (30...Qc5 31.g4 Nf6 32.g5+=) 31.Qe5 (31.Qe7!? Kh8 32.Ba6+/–) 31...Nf6= 32.Qe7 Kh8 33.Qe5 Qb6 (33...Kg7 34.Qe7 Kh6 35.Qe5 Kg7=) 34.Rc3+= Rc3 35.Qc3 Kg8 (35...Kg7 36.Qe5 Qb3 37.Qe7 Qf7 38.Qc5+=) 36.Bc4 (36.g4 Qd8+/–) 36...Kg7+= 37.Qe5 Kf8 38.Qb8 ½–½. Bouvier,Clement (1880) – Kambrath,Yannick (2035), 9e Tournoi d'Automne – Tournoi A, 2010.

10.Be2 Qc7 11.cd5 ed5 12.0-0 0-0=.

10.Be2 e5.

12.0-0 dc4 13.dc4 e5 14.Nfd2 =.

12.0-0 e5 13.g3 (13.cd5 Nd5 14.Nc3 Nc3 15.Bc3 Nb6=) 13...e4 (13...dc4 14.dc4 Rd8 15.Qc2=) 14.de4 de4 15.Nfd2 Ne5 (15...b6 16.Qc2 Bb7 17.Nc3=) 16.Nc3 Bh3 17.Nce4 (17.Re1!? Bf5 18.Qc2+=) 17...Ne4=+ 18.Ne4 Bf1 19.Kf1 (19.Bf1 Rd8=+) 19...Be7 (19...Rd8 20.Kg2 Ng6 21.Nd6 Rd6 22.Qc2=) 20.Bc3 Rd8 (20...Ng6 21.Bg4=) 21.Qa1= h6?? (better is 21...f6=) 22.Be5+- (22...Qb6 23.Bg7+-) 1–0. mtr – bakkeljauw, internet, 2001.

12.Nbd2 b6 13.0-0 Bb7 14.Bb2 dc4 15.Nc4 (15.dc4 e5 16.Nh4 e4=+) 15...Bf3-/+ 16.gf3 (16.Bf3 Bh2 17.Kh1 Be5-/+) 16...Bh2 17.Kg2 Bd6 18.d4 (18.f4 e5-/+) 18...cd4 (18...Be7 19.Rh1-/+) 19.Qd4 Bc5 (19...Be7 20.Rh1-/+) 20.Qh4=+ Be7 (20...Rc8 21.Bd3=+) 21.Bd3 h6 (21...g6 22.Rc1=+) 22.Rg1 (22.Qg3 Rc8=+) 22...Nd5?? (better is 22...Nc5 23.Be2 Nd5-/+) 23.Kh1+- (23...Bg5 24.Rg5+-) 1–0. Sokolski,Alexey – Schifman, corr ch SU, 1949.

12.Nbd2 b6 13.h3 Bb7 (13...h6 A) 14.Qc2 Rd8 (14...Bb7 15.0-0 Ra8 16.Bb2 Ne5 17.Ra1 Ra1 18.Ba1) 15.0-0 Bb7 16.Bc3 Ra8 17.Ra1 Ra1 18.Ba1; B) 14.Bb2 Ne5 (14...Bb7 15.Qc2 Ne5 16.0-0 Ra8 17.Ra1 Ra1 18.Ba1) 15.0-0 Bb7 16.Qc2 Ra8 17.Ra1 Ra1 18.Ba1; C) 14.0-0 Bb7 (14...Re8 15.Bb2 Bb7 16.Qb3 Ra8 17.Ra1 Ra1 18.Ba1) 15.Bb2 Ra8 16.Qc2 Ne5 17.Ra1 Ra1 18.Ba1; 13...Rd8 A) 14.0-0 Bb7 (14...h6 15.Bc3 Bb7 16.Qb3 Ra8 17.Ra1 Ra1 18.Ba1) 15.Qc2 Ra8 16.Bc3 h6 17.Ra1 Ra1 18.Ba1; B) 14.Qc2 Bb7 (14...Re8 15.0-0 Bb7 16.Bc3 Ra8 17.Ra1 Ra1 18.Ba1) 15.0-0 Ra8 16.Bb2 Ne5 17.Ra1 Ra1 18.Ba1; C) 14.Bc3 Bb7 (14...Ne5 15.Qa1 Nfd7 16.0-0 Bb7 17.Qb2 Ra8 18.Ra1) 15.0-0 Ra8 16.Qc2 e5 17.cd5 Nd5 18.Ra1; 13...Re8 A) 14.Bb2 Bb7 (14...h6 15.0-0 Bb7 16.Qc2 Ra8 17.Ra1 Ra1 18.Ba1) 15.0-0 h6 16.Qc2 Ra8 17.Ra1 Ra1 18.Ba1; B) 14.0-0 Bb7 (14...h6 15.Qc2 Bb7 16.Bb2 Ra8 17.Ra1 Ra1 18.Ba1) 15.Qc2 h6 16.Bb2 Ra8 17.Ra1 Ra1 18.Ba1; C) 14.Qc2 Bb7 (14...h5 15.0-0 Bb7 16.Bb2 Ra8 17.Ra1 Ra1 18.Ba1) 15.0-0 Ra8 16.Bb2 Ne5 17.Ra1 Ra1 18.Ba1) 14.0-0 (14.Qc2 Ne5 (14...Ra8 15.0-0 Ne5 16.Be5 Be5 17.Ne5 Qe5 18.Nf3) 15.Ne5 Be5 16.0-0 Ra8 17.Be5 Qe5 18.Nf3; 14.Bc3 Ne5 (14...Ra8 15.Qc2 e5 16.0-0 d4 17.Bb2 h6 18.Nh4) 15.Qa1 Ra8 16.Qb2 Ng6 17.0-0 e5 18.cd5) 14...Rd8 (14...Ra8 15.Qc2 Ne5 16.Be5 Be5 17.Ne5 Qe5 18.Nf3; 14...h6 15.Qc2 Ra8 16.Bb2 Ne5 17.Ra1 Nf3 18.Bf3) 15.Qb1 (15.Qc2 Ra8 16.Bc3 h6 17.Ra1 Ra1 18.Ba1) 15...Ne5 16.Rc1 (16.cd5 Nd5 17.Rd1 Ra8 18.Nc4) 16...Nf3 (16...Ra8 17.Ne5 Be5 18.d4) 17.Bf3 Qe7 (17...Nd7 18.d4) 18.Bb2 (18.Qb3=) 18...Nd7 19.cd5 ed5 20.Qa2 (20.d4!?=) 20...Ne5=+ 21.Be5 Be5 22.Qa7 Qc7 23.Qa4 Bf6 24.Qg4 (24.d4 c4=+) 24...Qd7 (24...g6!?-/+) 25.Qd7=+ Rd7 26.Rc2 Rd8 27.Ra2 Ra8 28.Ra8 Ba8 29.e4 (29.Kf1 Kf8=) 29...Bg5 30.Nb1 c4 (30...d4 31.Na3=+) 31.ed5= cd3 32.Kf1 Kf8 33.Ke1 Ke8 34.Nc3 Kd7 35.Na4 Bd8 36.Kd2 Kd6 37.Nc3 f5 38.Kd3 Kc5 39.g4 g6 40.gf5 gf5 41.Bh5 Bf6 ½–½. Ramos Moreno,FJ (2105) – Rubio Doblas,Fco Javier (2045), Malaga ESP, Regional Ch, 2013.

10.0-0 0-0 11.c4 (11.Be5 Nbd7 12.Bd6 Qd6=) 11...Nbd7 (11...e5 12.d4 cd4 13.ed4=) 12.d4 b6 (12...Rd8 13.cd5 Nd5 14.Nc3=) 13.dc5 (13.Ne5 cd4 14.Nc6 Qe8 15.Bd4 Bb7+=) 13...Bc5 (13...bc5 14.Nbd2=) 14.Qc2 (14.cd5 Nd5 15.Nc3 Bb7=) 14...Bb7 15.Nbd2 (15.cd5 Nd5 16.Rd1 Rc8=) 15...Ra8 (15...Rc8 16.Rc1=) 16.Rb1 (16.Rd1 Rc8=) 16...h6 (16...Bd6 17.Rd1=) 17.Bd3 (17.Rd1 e5=) 17...e5 18.cd5 Nd5 (18...Bd5 19.Bc4=) 19.Bf5 (19.Bc4 Bd6=) 19...N5f6 20.Rd1 Rc8 (20...Bd5 21.Nc4=) 21.Ne4 (better is 21.Qa4=) 21...Ne4?? (21...Bd4 22.Nf6 Qf6+/–) 22.Rd7+- (22.Bd7 Ra8 23.Bc6 Bc6 24.bc6 Ng5 25.Ne5 Qc7+/–) 22…Be3?? (22...Bb4 23.Qc8! Bc8 24.Re7 Bf5 25.Re8 Kh7 26.Ne5 Nd6+-) 1–0. Boehnke,Hartmut – Klawitter,Bernd, DESC, 2001.

10.0-0 e5 11.Bb2 +=.

10.Be5 Nbd7 11.Bd6 Qd6 =.

10.Be5 Be5 11.Ne5 Nbd7 =.

10.Ne5 0-0 =.

10.Ne5 Nfd7 11.d4 (11.Nd7 Nd7 12.Nc3 Nf6=) 11...0-0 (11...cd4 12.Nd7 Nd7 13.Qd4=) 12.0-0 f6 (12...c4 13.f4=) 13.Nf3 (13.Nd7 Nd7 14.c4 Nb6 15.cd5 cd4 16.Bd4 Nd5=) 13...b6 14.c4 dc4 (14...Bb7 15.Nc3=) 15.Nbd2 (15.Bc4 Bb7=) 15...Rd8 (15...Bb7 16.Nc4 Bd5 17.Qc2+=) 16.Bc4 Bb7 17.Qb3 Nf8 (17...Re8 18.Rc1+=) 18.Nh4 (18.Rd1 Nbd7+=) 18...Kh8 (18...Qc7 19.Be6 Ne6 20.Qe6 Kf8 21.Nhf3+=) 19.f4 (19.Rd1 cd4 20.Bd4 Nbd7+=) 19...Qe8 (19...Rc8 20.e4=) 20.Nhf3 cd4 21.Bd4 Nbd7 22.Qb2 Ng6 23.Ra1 Bb8 24.Ng5 fg5-/+ 25.Bg7 Kg8 26.Bh6 Nde5 27.Rf1?? gf4-+ 28.ef4 Nh4?? 29.Bg5?? Rd2-+ 30.Qd2 Nc4 31.Qa2 Nf5 32.Qc4 Ne3 33.Qd4? Nf1 34.Kf1? Qb5 35.Ke1 Qb1 36.Kd2 Qa2 37.Ke1 Qa3 38.Kf1? Ba6 39.Kf2 Qc5 (40.Qc5 bc5-+) 0–1. Massana,Jorge (2240) – Taleb,Moussa (2205), ol (Men) Moscow RUS, 1994.

10.Ne5 Ne4 11.0-0 =.

9.c4 dc4 10.Bc4 Qa5 11.Bc3 Qb6 12.Qb3 Bd6 13.d4 (13.Bf6 gf6 14.0-0 Rg8+=) 13...Ne4 14.dc5 Nc5 15.Bd4 Qa5 (15...Nb3 16.Bb6 Nc5 17.Ke2+=) 16.Qc3 Qc3 17.Nc3 0-0 18.0-0 (18.Ke2 Rc8+-) 18...Rc8+= 19.Ra1 Be8 20.Ra7 (20.Ra8 Ncd7 21.Ra4 Bc5 22.Bc5 Nc5+=) 20...b6 (20...Nbd7 21.Nd2+=) 21.Nd2 Nbd7 22.Nb3?? (22.f4 Kf8+=) 22...e5?? (better 22...Nb3 23.Bb3 e5-+) 23.Bc5+= Bc5 (23...Nc5 24.Nd2+=) 24.Nc5 (24.Nd5 Bd6 25.Nd2 h6+-) 24...Rc5= 25.Ra4 g6 (25...Nf6 26.h3=) 26.g3 (26.Ne4!? Rc7 27.Kf1+=) 26...Kg7 (26...Kf8!?=) 27.Kg2 1–0. Figiel,Rafal – Lipko,K, casual, 2001.

9.c4 dc4 10.Bc4 Be7 11.0-0 0-0 12.Nc3 b6 13.Ne5 (13.Na4 Ne4+=) 13...Qc7 (13...Bc8 14.Na4=) 14.f4 (14.Nd7 Nbd7 15.f4 Ne8+=) 14...Bc8 15.Be2 Bb7 16.Bf3 Bd6 (16...Nbd7 17.Nc6 Bd6 18.d3=) 17.Qc2 (17.Nc4 Be7=) 17...Bf3 18.Nf3 Nbd7 (18...Rd8 19.Ne4 Ne4 20.Qe4=) 19.Ne4 Ne4 20.Qe4 Nf6 (20...Be7!?=) 21.Bf6+= gf6 22.Ra1 (22.f5 Qd7+=) 22...f5 23.Qc2 Qb7 (23...Rc8 24.Ra6+=) 24.Ra6 f6 (24...Rd8 25.d3+=) 25.Qa2 (25.d3 Rf7+-) 25...Re8 26.Ra7 (26.Qa1 Be7 27.d3+=) 26...Qe4 (26...Qc8!?+-) 27.Rd7+- Bf8 28.Qa7 Ra8 29.Qb6 Ra1? (better 29...h6+-) 30.Kf2 (30.Kf2 Ra8 31.Ne5+-) 1–0. Adlai – Tsvetko, corr, 2018.

9.c4 dc4 10.Bc4 Nb6 11.Be2 Nbd5 12.0-0 Bd6 13.Na3 0-0 14.Nc4 Bb8 15.Qb1 h6 16.Rd1 Qe7 17.d4 cd4 18.Bd4 Bd6 (18...Rd8!?+=) 19.Nd6+/– Qd6 20.Rc1 (better is 20.Bf6 gf6 21.Qe4+/–) 20...Bd7? (better is 20...Rd8+/–) 21.Bc5+- Qb8 22.Bf8 Kf8 23.Qa1 b6 24.Ne5 Qd6 25.Nd7 Qd7 26.Qa8 Ne8 27.Qc6 Qa7 28.Bf3 Qa3 (28...Ndf6 29.Qc8+-) 29.Bd5 ed5 30.Rd1 Qd6 (30...Qb3 31.Rf1+- (worse is 31.Qd5 Qd5 32.Rd5 Ke7+-)) 31.Rd5 (31.Qd5?! Qd5 32.Rd5 Ke7+-) 31...Qc6 32.bc6 Ke7 33.Rd7 Ke6 34.Rb7 Kd6 35.Rb6 (35.Rf7 b5+-) 35...Nc7 36.f4 Kc5 37.Rb8 Kc6 38.Rf8 f6 39.Rf7 Ne6 40.f5 Ng5 41.Rg7 Kd5 42.Kf2 Ke4 (42...Ke5 43.h4 Ne4 44.Kf3+-) 43.h4 (43.h4 Kf5 44.hg5 hg5 45.Kg3+-) 1–0. Jacobi,Karl Heinz (2150) – Zander,Klaus (1635), GER–chT Seniors, 2008.

9.c4 dc4 10.Bc4 Bd6 11.0-0 0-0 12.d4 Nb6 13.dc5 Bc5 14.Qd8 Rd8 15.Bf6 gf6 16.Be2 Na4 17.Rd1 Rd1 18.Bd1 Nb6 19.Nc3 Bd7 20.Na4 Na4 21.Ba4 Kf8 22.Kf1 Ke7 23.Ke2 Kd6 24.Kd3 Bb6 25.Nd2 Bd8 26.Kc4? f5 27.Nf3 Be7 28.Bc2 f6 29.Nd4 Kc7 30.Bd3 Bd6 31.g3 Kb6! 32.f4 Bc5! 33.Kc3 Bd4 34.Kd4 Bb5 35.Bb5 Kb5 36.e4 fe4 37.Ke4 Kc4 38.g4 b5 39.f5 ef5 40.Kf5 b4 41.Kf6 b3 42.Kg7 b2 43.Kh7 b1Q 44.Kh6 Qg1 0–1. mtr – test01, internet, 2001.

9.c4 Qc7 10.d3 b6 11.Be2 Bb7 12.Nbd2 Bd6 13.h3 0-0 14.0-0 Ra8 15.Qc2 h6 16.Bb2 Be7 17.d4 cd4 18.Nd4 Ne4 19.Ne4 de4 20.Nb3 Ra2 21.Rd1 Nf6 22.Nd2 Nd7 (22...e5!?=) 23.Qb1+= Ra4 24.Ne4 Rb4 25.Nc3 Bf6 26.Qc2 Nc5 27.Ba1 Bh4 28.Na2 Ra4 29.Bd4 Ra5 30.Bf3 Bf3 31.gf3 e5 32.Bc3 Ra8 33.Nb4 Qc8 34.Kh2 Qe6 35.Nd5 Rc8 36.Bb2 Nd7 37.Qe4 Bg5 (37...Bf2? 38.Kg2+-) 38.Ra1 f5 39.Qd3 Nc5 40.Qc3 Bf6 41.Ra7 Rd8 42.Nf6 gf6 43.Ba3 Rd7 44.Ra8 Kh7 45.Bc5 bc5 46.Rc8 Rg7 47.Rc5 1–0. Buczinski,Henryk (2195) – Kulczycki,Michael (1970), WC–2015–P–00002, 2011.

9.c4 Be7 10.d3 0-0 =.

9.c4 Be7 10.Be2 0-0 11.0-0 b6 12.Qc2 Bb7 13.d3 Bd6 14.Nbd2 Qc7 15.h3 Ra8 16.Bb2 Bc8 17.d4 Ra2 (17...cd4 18.Nd4 e5 19.Nc6=) 18.Qb1 Qa7 19.Bd1 Qa8 20.Bb3 Bb7?? (better is 20...Ra5=) 21.Qa2+- (21...Qd8 22.Ra1+-) 1–0. Kirdin – Tourenin, URS, 1990.

9.c4 Be7 10.Be2 dc4 11.Na3 =+.

9.d3 Qa5 10.Nbd2 +=.

9.d3 b6 10.Nc3 Be7 11.Be2 0-0 12.Qd2 Qc7 13.0-0 Bb7 14.Bb2 Ra8 15.Ra1 Ra1 16.Ba1 h6 17.d4 cd4 18.Nd4 Nc5 19.f4 Nce4 20.Ne4 Ne4 21.Qe1 Bc5 22.Bd3 Be7 23.Nb3 Bf6 24.Be4 de4 (24...Ba1 25.Qa1 (worse is 25.Na1 de4 26.Qd2 Qc5-/+) 25...de4 26.Nd4=) 25.Bf6+= gf6 26.Nd4 f5 27.Qb4 Qd8 28.Kf1 Qd7 29.Ke1 Kg7 30.c4 Qd8 31.Qa3 Qa8 (better is 31...Kg8+=) 32.Qa8+- Ba8 33.Ne2 Kf6 34.Nc3 Ke7 35.Na4 Kd6 36.Nb6 Bb7 37.Na4 1–0. Idelis – M54, playchess.de, 2004.

9.Be2 Qa5 10.Bc3 Qc7 11.0-0 Bd6 (11...e5 12.d4 cd4 13.ed4+=) 12.Bb2 (12.d4 c4=) 12...e5 13.h3 e4 (13...Nb6 14.d4 cd4 15.ed4+=) 14.Ne1 (14.Nh4 0-0=) 14...Ne5 (14...0-0 15.d4+=) 15.d3 (15.d4 cd4 16.Bd4 b6=) 15...Be6 (15...0-0 16.d4 cd4 17.Bd4=) 16.Nd2 (16.f4 ef3 17.Nf3 0-0+=) 16...0-0 17.de4 (17.d4 cd4 18.Bd4 Ra8+=) 17...de4 18.c4 (18.f4 ef3 19.Nef3 Rd8+=) 18...Ned7 (18...Rd8 19.Qb1 Bf5 20.Nc2+=) 19.Qb1 (19.f4 ef3 20.Nef3 b6=) 19...Be5 (19...Bh2 20.Kh1 Be5 21.f4 ef3 22.Nef3+=) 20.Nc2 (20.Bc1 Nb6=) 20...Nb6+= 21.Be5 (21.Qa1 Bb2 22.Qb2 Rd8+=) 21...Qe5 22.Qb3 Rd8 (22...Qg5 23.Kh2+=) 23.Nb1 (23.Rd1 Qg5 24.Kh2 Qf5+=) 23...h5 (23...Qg5 24.Kh1+=) 24.Nc3 Nc4 (24...Rd2 25.Na3+=) 25.Bc4= Rd3 26.Be6 (26.Bd3 Theme: Deflection from b3 26...Bb3) 26...fe6 27.Nd4 (27.Rd1 Rc3 (worse is 27...Qc3 28.Rd3 Qd3 29.Qe6 Kf8 30.Qc8 Ke7 31.Qc5 Qd6 32.Qd6 Kd6 33.Nd4+/–) 28.Rd8 Kh7+=) 27...Nd5 (27...cd4 28.ed4 Rd4 29.Ne2-/+) 28.Nde2 Nc3 29.Nc3 Rc3 30.Qb2 Qf6 31.Ra1 (31.Qb1 Rd3=) 31...Rd3 32.Qf6 (32.Ra8 Kh7 33.Qf6 gf6=) 32...gf6+= 33.Ra8 Kf7 34.Rc8 ½–½. Junge – Franke,Claus Peter, corr ICCF WT–M–GT–85, 1978.

9.Be2 Bd6 10.c4 e5 11.0-0 e4 12.Ne1 0-0 13.f4 ef3 14.Nf3 Qc7 15.cd5 Nd5 16.Qb3 N7b6 17.Na3 Be6 18.Nc4 f6?? (18...Ra8 19.Qc2 Nb4 20.Qc3=) 19.Nd6?? (better is 19.Nb6 Qb6 20.Bc4 Bh2 21.Nh2+-) 19...Qd6= 20.Qb2 Qc7 21.Nh4 Qd7 22.Qc2 c4 23.Bd4 (23.Bc4? Rc8 24.e4 Rc4-+ (24...Nc4?! 25.ed5 Qd5 26.Nf5 Bf5 27.Qf5 Qf5 28.Rf5-/+)) 23...Qd6 24.Nf5 (< 24.Bc4 Nc4 25.Qc4 Ne3-/+) 24...Bf5 25.Rf5 Rc8 26.Qe4 g6 27.Rf1 f5 28.Qh4 Nd7 29.Qg5 Qe6 30.Bf3 b6 1–0. Althoff,Guntram (2145) – Dominguez Marquez,Cecilio, Mislata op–B, 2003.

10.Nc3 Bb7 11.cd5 ed5 12.d4 c4 13.Be2 Bd6 14.Qc2 0-0 15.0-0 Qc7 16.Rc1 Ra8 17.Bb2 h6 18.Bd1 Bb4 19.Nd2 Nf8 20.Ra1 Ra1 21.Ba1 Ba5 22.Qa4 Ne6 23.Nf3 Qe7 (23...Ng5!? 24.Ng5 hg5-/+) 24.Ne5= Nc7 25.h3 Qe8 26.Bc2 (26.Bf3 Bc3 27.Bc3 Bc8=) 26...Nd7+= 27.Ng4 f6 28.Nh2 Nb8 29.Nf3 Bc3 30.Bc3 Nb5 31.Bb4 Bc6 32.Qa1 (32.Qa2 Bd7+=) 32...g5 33.Qb2 Na6 34.Bd2 Qe7 35.Ba4 Nac7 36.Nh2 Be8 37.Bb4 Qe6 38.Nf1 h5 39.Ng3 h4 40.Ne2 Kg7 41.Bd2 Qc8 42.Qb1 Kg8 43.Qb2 Qa8-/+ 44.Qb4 Qd8 45.Bb5 Nb5-/+ 46.e4 Qd6 47.Qd6+= Nd6 48.ed5 Kf7 49.f3 Ke7 50.Bb4 Bf7 51.Nc3 Kd7 52.Ne4 Ne8 53.Nc3 Nc7 Attacks the isolani on d5 54.d6 Nd5 55.Nd5 Bd5 56.Kf2 f5 57.Ke2 b5 58.Kd2 Bb7 59.Ke3 Ke6 60.Ke2 Bc6 ½–½. Morley,Paul (2275) – Fourie,M. J (2375), corr WS/MN/033 ICCF, 2008.

10.d3 Bb7 11.Be2 Qc7 12.Nbd2 Bd6 13.0-0 0-0 14.h3 Ra8 15.Qc2 Qb8 16.Bb2 Bf8 17.Ra1 Ra1 18.Ba1 Qa8 19.Bc3 h6 20.Qb2 Ne8 21.Ne5 Ne5 22.Be5 Nd6 23.Qa1 Qa1 24.Ba1 dc4 25.Nc4 ½–½. Lins,Thomas (2170) – Poess,Frank (2190), GER–ch33 V5 email, 2002.

10.d4 Bb7 11.Nbd2 cd4 12.Bd4 Bb4 13.cd5 Bd5 14.Be2 e5 15.Bb2 (15.Be5 Bf3 Decoy; 15.Ne5 Bg2 Pinning (15...Bg2 Deflection)) 15...Bf3 16.Bf3 Nc5 17.Bc6 Ke7 18.0-0 (better is 18.Bc1+=) 18...Qd2-+ 19.Qa1 Rd8 20.Be5 Kf8 (20...Ba5!?-/+) 21.Bc7+= Bc3 22.Qa3 Bb2 ½–½. pcmvr – Korchnoi, playchess.de, 2004.

10.d4 Bb7 11.Nbd2 Be7 12.Be2 0-0 13.0-0 Qc7 14.Qb3 Rc8 15.Bb2 (15.Rc1 cd4 16.Bd4 e5=) 15...Bd6 16.h3 (16.Rc1 Ne4+=) 16...Be7 (16...cd4 17.Nd4 Nc5 18.Qd1+=) 17.Ra1 Ra8 (17...cd4 18.Nd4 Nc5 19.Qd1=) 18.Ra8 Ba8 19.Qa2 (19.Ba3 dc4 20.Nc4 Be4=) 19...Bb7 20.Bd3 (20.cd5 Bd5 21.Bc4 Qb7=) 20...Qc8 (20...cd4 21.Nd4 (21.Bd4? e5-+) 21...Ne5 22.Be2+=) 21.Qb1 (21.cd5 ed5 22.dc5 bc5=) 21...h6 (21...cd4 22.Bd4 dc4 23.Nc4 Bf3 24.gf3=) 22.Ne5 (22.cd5 Nd5 23.Nc4 Qe8=) 22...Ne5 (22...cd4 23.Bd4 Ne5 24.Be5=) 23.de5 Nd7 24.f4 (24.Qd1 Qc7 25.Qh5 Nf8+=) 24...Nf8 25.Qd1 (25.Qc2 Qd7=) 25...Qd8 (25...Qd7 26.Qc2=) 26.Qe2 (26.Qc2 Qd7=) 26...Qd7 27.Nf1 dc4 28.Bc4 Bd5 29.Qc2 Bh4 30.Bd3 Bb7 31.g3 Be7 32.Nd2 Bd5 33.e4+= Bb7 34.Nc4 Qd8 35.f5?? f6 36.ef6+= gf6 37.Ne3+/– e5 38.Bc4 Kg7 39.Qe2 Qe8?? 40.Qg4+- Kh7 41.Qg8# 1–0. Delling,Thomas – Schaefer,Sven, Oberliga Ost A, 1998.

10.d4 Be7 11.cd5 (11.Nc3 0-0+=) 11...ed5 12.Ne5 (12.Nc3+=) 12...c4 (12...Bb7!?+=) 13.Nc6= Qc7 14.Ne7 Ke7 15.Bb2 (15.Bc3 Ne4+=) 15...Rd8 (15...Ne4 16.Ba3 Kf6 17.Qf3 Kg6 18.Qg4 Kh6 19.Qh4 Kg6 20.f3+=) 16.Ba3+= Ke8 17.Nc3 (17.f3 Bb7+=) 17...Nf8 18.f3 Ng6 19.Be2 h5 (19...Bb7 20.0-0+=) 20.0-0+/– h4 (20...Bb7 21.Bb4+=) 21.e4 Qf4 (21...h3 22.g3+/–) 22.Bc1 Qd6 (better is 22...Qc7!? 23.Bg5 de4 24.fe4 h3+-) 23.e5+- Ne5 24.de5 Qe5 25.Na4 Kf8 (25...Qe7 26.Re1 Be6 27.Qd4+-) 26.Bc4! d4 (26...dc4 27.Ba3 Double attack (27.Qd8 Pinning; 27.Qd8 Deflection)) 27.Re1 Qc7 28.Qd3 (better is 28.Ba3 Kg8 29.Qc1 Re8 30.Re8 Ne8+-) 28...Kg8 (28...Bf5 29.Qf5 Qc4 30.Nb6 Qc3+-) 29.Bg5 h3 (29...Qd6 30.Bh4 Bb7+-) 30.Bf6 gf6 31.Qg6 Kf8 32.Qf6 Kg8 33.Bf7! Kf8 (33...Qf7 34.Qg5 Double attack (34.Qd8 Deflection; 34.Qd8 Overloading)) 34.Bd5 (34.Bd5 Qf7 35.Qf7#) 1–0. pierre – oppodef, internet, 2010.

12.d3 0-0 13.Nbd2 (13.Qc2 Ng4 (13...Qe7 14.Nc3 Ra8 15.Bb2 e5 16.Nd2 d4 17.Nce4 Ne4 18.Ne4 f5 19.Nd6=+; 13...e5 14.Nh4 Bc7 15.Nd2 Qe7 16.Nf5 Qe6 17.e4 Ra8 18.Bb2 Ra2 19.Qb1=; 13...Re8 14.Nbd2 e5 15.e4 d4 16.Bb2 Nh5 17.Ra1 Nf4 18.Nf1 f5 19.Ng3=; 13...Qe8 14.Nbd2 Qe7 15.Bc3 Ra8 16.Ra1 Ra1 17.Ba1 e5 18.e4 de4 19.de4=; 13...Qc7 14.cd5 Nd5 15.Nbd2 Ra8 16.Ne4 e5 17.Bb2 Nb4 18.Qc3 Ra5 19.Ra1=) 14.Nbd2 Qc7 15.cd5 Bh2 16.Kh1 ed5 17.Qc3 Ndf6 18.d4 Bd6 19.Ne5-/+; 13.Bb2 Qc7 (13...dc4 14.dc4 Qc7 15.h3 e5 16.Nh4 Rd8 17.Nf5 Bf8 18.Nd2 Ne4 19.Ne4=; 13...Qe7 14.Nc3 Ra8 15.cd5 ed5 16.d4 c4 17.Qc2 Ra5 18.Ra1 Ra1 19.Ba1=; 13...e5 14.Nh4 Ne8 15.Nf5 Qg5 16.g4 Qg6 17.Bf3 h5 18.cd5 hg4 19.Be4=; 13...Qb8 14.cd5 Bd5 15.e4 Bb7 16.Nbd2 Ng4 17.h3 Nh2 18.Re1 Nf3 19.Nf3=; 13...Re8 14.Qc2 e5 15.Nh4 Nb8 16.Nf5 Bc7 17.Bf3 Bc8 18.Ng3 Be6 19.Nd2=) 14.cd5 Bd5 15.e4 Bb7 16.Nbd2 Ng4 17.h3 Nh2 18.Re1 Nf3 19.Nf3=+; 13.d4 Qb8 (13...Qe7 14.cd5 ed5 15.dc5 bc5 16.Qd2 Ra8 17.Nc3 Ne4 18.Qb2 f5 19.Rb1=+; 13...Qc7 14.dc5 bc5 15.cd5 ed5 16.Nbd2 Rc8 17.Qc2 c4 18.Rb1 c3 19.Nb3=; 13...cd4 14.Qd4 e5 15.Qh4 Ne4 16.Nc3 Qh4 17.Nh4 Nc3 18.Bc3 g6 19.Rd1=; 13...Ne4 14.Nfd2 cd4 15.Bd4 Qc7 16.f4 e5 17.Ne4 de4 18.fe5 Be5 19.g3=+; 13...dc4 14.dc5 Bc5 15.Qc2 Bd6 16.Nbd2 Qb8 17.Qc4 Rc8 18.Qa4 Rc5 19.Rd1=) 14.dc5 bc5 15.cd5 Bd5 16.Nbd2 e5 17.Bc4 Bb7 18.Qc2 e4 19.Ng5-/+; 13.cd5 ed5 (13...Nd5 14.Nbd2 Qe7 15.Ne4 e5 16.Bb2 Bc7 17.Qb3 Ra8 18.Ra1 Ra1 19.Ba1=; 13...Bd5 14.Nc3 Bb7 15.Qc2 Qc7 16.Ne4 Ra8 17.Rd1 e5 18.Nfd2 Be7 19.Nc4=) 14.Nc3 Qe7 15.Qa4 Ne5 16.Ne5 Qe5 17.Qh4 d4 18.Na4 Bc7 19.Re1=+) 13...Qe7 (13...Qc7 14.cd5 A) 14...Nd5 15.Nc4= (15.Ne4 e5 16.Qc2 Ra8 17.Bb2 Nb4 18.Qc3 Ra5 19.Ra1=) 15...e5 16.Nh4 f5 17.e4 Nf4 18.Bf3 fe4 19.de4+=; B) 14...ed5 15.Qc2 Ra8 16.Rc1 Kh8 17.Bc3 Rc8 18.Bb2 Re8 19.d4=; 13...Re8 14.Bb2 Qc7 15.Qc2 Ra8 16.cd5 ed5 17.Ra1 Re8 18.Nf1 Bc8 19.d4=; 13...Qe8 14.Qa4 e5 15.cd5 Bd5 16.e4 Be6 17.Nc4 Bc4 18.Qc4 Nh5 19.g3=; 13...e5 14.Nh4 Bc7 15.Nf5 Qe8 16.Bf3 Qe6 17.e4 d4 18.Bb2 Ra8 19.Bc1=; 13...Ng4 14.cd5 ed5 15.h3 Ngf6 16.Nh4 Qe8 17.Nf5 Bc7 18.Bb2 Bc8 19.Qc2=) 14.Qb3 (14.Bb2 Ra8= 15.Qc2 e5 16.e4 d4 17.Nh4 Qe6 18.Ra1 Ra1 19.Ba1=; 14.Qc2 Ra8 15.Bb2 e5 16.e4 d4 17.Nh4 Qe6 18.Ra1 Ra1 19.Ba1=) 14...Ra8=+ (14...e5 15.cd5 Nd5 16.Rc1 Ra8 17.Nc4 Bb8 18.Bb2 Qe6 19.Ra1=) 15.Bb2 (15.Bc3 e5=+ 16.Ra1 Ra1 17.Ba1 e4 18.Ne1 Bc7 19.de4=; 15.Qc2 e5 16.e4 d4 17.Bb2 Nh5 18.Nb3 Nf4 19.Bc1=+) 15...Ne8 (15...e5 16.Ra1=+ (16.Rd1 Qe6 17.e4 d4 18.Ng5 Qe7 19.Ra1=+) 16...Ra1 17.Ba1 e4 18.Ne1 ed3 19.Qd3=) 16.Ra1= Ra1 17.Ba1 Bb8 (17...Nef6 18.Qa4= Qd8 19.cd5=; 17...Nc7 18.Bb2 e5 19.e4=) 18.Qa2 (18.Qc2 Nef6= 19.d4=; 18.Qa4 Nef6 19.Qc2=) 18...f6 (18...Nef6 19.Qc2=) 19.Bb2 (19.Bc3=) 19...Nd6 20.Qa4 (20.Qb1 Qe8=) 20...Nf8 (20...dc4 21.dc4 e5 22.Ne1=) 21.h3 (21.d4 Nc4 22.Nc4 dc4 23.Qc4 Nd7=) 21...Qc7 (21...dc4 22.Nc4 Nd7 23.Nfd2=) 22.Kf1 (22.cd5 ed5 23.d4 c4=) 22...Nf7 (22...e5 23.cd5 Bd5 24.Ne4=) 23.d4 (23.cd5 ed5 24.Kg1 Qd7=) 23...Nd6 (23...cd4 24.Bd4 e5 25.Bb2=) 24.dc5 bc5 25.Kg1 Nd7 26.Qc2 Nb6 (26...dc4 27.e4=) 27.cd5+= ed5 28.Bd3 h6 29.Ba3 ½–½. Bendig,Frank (2365) – Baumann,Heinz (2355), remoteschach.de, 2009.

12.d3 dc4 13.dc4 Qb8 (13...Qc7 14.Nbd2 e5 15.Qc2 e4 16.Ng5 Bh2 17.Kh1 0-0 18.Nde4 Ne4 19.Ne4=) 14.Nbd2 e5 15.Qc2 e4 16.Ng5 Bh2 17.Kh1 Bc7 18.Nge4 Ne4 19.Ne4=.

12.d3 Qc7 A) 13.cd5 ed5 (13...Nd5 14.Nbd2 0-0 15.Nc4 e5 16.Nh4 f5 17.e4 Nf4 18.Bf3 fe4 19.de4+=; 13...Bd5 14.e4 Bb7 15.Nbd2 0-0 16.Nc4 Bf4 17.g3 Bh6 18.Nfe5 Ra8 19.Nd7=) 14.Qc2 0-0 15.Rc1 Ra8 16.Bc3 Ra7 17.Nbd2 Ng4 18.h3 Ngf6 19.d4=; B) 13.h3 0-0 (13...e5 14.cd5 Nd5 15.Nc3 0-0 16.Nd5 Bd5 17.e4 Bb7 18.Bc3 Ra8 19.Qc2=; 13...dc4 14.dc4 0-0 15.Qd3 Ra8 16.Nc3 Bf3 17.Bf3 Ne5 18.Qe2 Rd8 19.Ne4=; 13...h6 14.cd5 ed5 15.Qc2 0-0 16.Bb2 Ra8 17.Na3 Ne5 18.Ra1 Qe7 19.Ne5=) 14.Nc3 Ra8 15.cd5 Nd5 16.Nd5 Bd5 17.e4 Bb7 18.Qc2 Ra5 19.Bc3=+; C) 13.Kh1 dc4 (13...0-0 14.cd5 Nd5 15.Nc3 Ra8 16.Ne4 e5 17.Bb2 Ra5 18.Qb3 Nb4 19.Nfd2=; 13...e5 14.cd5 Nd5 15.Nc3 0-0 16.Nd5 Bd5 17.e4 Bb7 18.Bc3 Ra8 19.Qc2=) 14.dc4 0-0 15.Nbd2 e5 16.Qc2 e4 17.Ng5 Re8 18.Bf6 Nf6 19.f4=+; D) 13.Nbd2 0-0 (13...e5 14.Nh4 e4 15.h3 0-0 16.Nf5 Rd8 17.Qc2 ed3 18.Bd3 Bh2 19.Kh1 Be5=; 13...Ng4 14.cd5 Bd5 15.h3 Ngf6 16.e4 Bb7 17.Nc4 Be7 18.Qc2 0-0 19.Nfe5=) 14.cd5 ed5 15.Bc3 Ra8 16.Re1 Ng4 17.h3 Ngf6 18.Qc2 Ra3 19.Nb1=.

12.d3 Qe7 A) 13.Qa4 0-0 (13...dc4 14.dc4 0-0 15.Nbd2 Rd8 16.Rd1 e5 17.Qa7 Ba8 18.Bc3 Ne8 19.e4=) 14.Qa7 Rb8 15.Nc3 Nf8 16.cd5 ed5 17.d4 Ne6 18.Qa2 cd4 19.Nd4=+; B) 13.Qc2 0-0 (13...e5 14.Nbd2 0-0 15.e4 d4 16.Bb2 Ra8 17.Nh4 g6 18.Ra1 Ra1 19.Ba1=; 13...h6 14.cd5 ed5 15.Nh4 Qe6 16.d4 0-0 17.Nf5 Bc7 18.dc5 bc5 19.Nd2=; 13...Bc7 14.Nbd2 0-0 15.Bc3 Ra8 16.Ra1 Ra1 17.Ba1 Bd6 18.Qa4 Qd8 19.cd5=) 14.Nc3 Ra8 15.Bb2 e5 16.Nd2 d4 17.Nce4 Ne4 18.Ne4 f5 19.Ng3=+; C) 13.Nbd2 e5 (13...0-0 14.Bb2 Ra8 15.d4 Bc7 16.cd5 Nd5 17.Nc4 N5f6 18.Qc1 cd4 19.Ba3=) 14.Qa4 0-0 15.Qc2 Ra8 16.e4 d4 17.Bb2 Nh5 18.Ra1 Ra1 19.Ba1=+; D) 13.d4 0-0 14.cd5 ed5 15.dc5 bc5 16.Nbd2 Re8 17.Qc2 d4 18.Nc4 Bf4 19.Qf5=+; E) 13.Nc3 0-0 (13...Bc7 14.cd5 ed5 15.d4 c4 16.Qa4 0-0 17.Qa7 Rb8 18.Bb2 Qb4 19.Rb1=) 14.Qc2 Ra8 15.Bb2 e5 16.Nd2 d4 17.Nce4 Ne4 18.Ne4 f5 19.Ng3=.

12.d4 0-0 13.Nbd2 Qc7 14.dc5 Bc5 15.Bd3=.

12.d4 0-0 13.Nbd2 Qc7 14.dc5 Nc5 15.cd5 Bd5 16.Nc4 (16.Bf6 gf6 17.Bc4 Bb7=) 16...Be7 (16...Bf3 17.Bf3 Bh2 18.Kh1=+) 17.Nfd2 Nfd7 18.Qc2 Bf6 19.e4 Bc4 20.Nc4 Ba1 21.Ra1 g6 22.g3 (22.Rd1 Ne5=) 22...Rc8 (22...e5 23.Rd1=) 23.Ne3 g5 24.Rc1 Ne5 25.Qc3 Rd8 26.Rf1 (26.Ng4 Ng4 27.Bg4 Qe7=) 26...h6 27.f4 gf4 28.gf4 Ned3 29.e5 Qe7 30.Ng4 Ne4 (30...Qh4 31.Nf6 Kf8 32.Qd2=) 31.Nh6 Kg7 32.Qc6 (32.Qc2 Qc5 33.Qc5 Ndc5+=) 32...Qc5 (32...Nd2 33.Qg2 Kh6 34.Qh3 Kg7 35.Bd3 Qc5 36.Rf2+=) 33.Qc5+= Ndc5 34.Ng4 Rd2 35.Bf3 ½-½. Mely (2860) - karlheins (2565), ChessWorld.net, 2011.

12.d4 0-0 13.Nbd2 Qc7 14.dc5 Nc5 15.Bf6 gf6 16.cd5 Bd5=.

12.d4 0-0 13.Nbd2 Qc7 14.dc5 Nc5 15.h3 Nfe4 16.cd5 Bd5 17.Nd4 (17.Nc4 f6=+) 17...Ra8 18.Ne4 Ne4 19.Bf3 Bh2 20.Kh1 Be5 21.Qe2 (21.Be4 Be4 22.Qg4 Bd5=+) 21...Bc4 22.Ne6? (better is 22.Qd1!? Bf1 23.Be4–/+) 22...Be6–+ (22...Be2 23.Nc7 Bf1 24.Na8 Ba1 25.Be4 Bb5 26.Nb6+/–; 22...Ra1 23.Ra1 fe6 24.Ra8 Kf7 25.Qc2–/+; 22...fe6?! 23.Be5 Be2 24.Bc7 Bf1 25.Be4=+) 23.Be4 Ra1 24.Ra1 Ba1 (25.Qd3 g6–+) 0–1. Tkachiev,Vladislav (2575) – Karpov,Anatoly (2765), Alma–Ata m2, 1995.

12.d4 0-0 13.Re1 cd4 14.Bd4 dc4–/+.

12.d4 cd4 13.Qd4 Qa8 (13...e5 14.Qh4=) 14.Nc3 Bc5 15.Qf4 dc4 16.Bb2 0-0 17.Ra1 Qb8 18.Qb8 Rb8 19.Nd2 Ra8 (19...Nd5 20.Nc4 Nc3 21.Bc3=) 20.Ra8 Ba8 21.Nc4 Kf8 22.Na4 Attacking the isolated pawn on b6 22...Ke7 23.Ne5 Bd5 24.Nd7 Nd7 (24...Kd7!? 25.Nc5 bc5+=) 25.Bg7 f6 26.Nc5 Nc5 27.f3 e5 28.e4 Ba8 (28...Be6 29.Kf2+-) 29.Kf2 Ne4? (better 29...Bb7+-) 30.fe4+- Be4 31.g4 Kf7 (31...Ke6 32.Bc4 Ke7 33.Kg3+-) 32.Bh6 Ke6 33.Be3 Bd5 34.Bb6 Kd6 (34...f5 35.gf5 Kf5 36.Be3+-) 35.Bd8 Ke6 36.b6 Kd7 (36...Bb7 37.Bc4 Kd6 38.Bf6+-) 37.Bf6 Kc6 38.Be5 Kb6 39.Bd3 Bg8 40.Ke3 Kc5 41.Bd4 Kd6 42.h4 Kd7 (42...Ke7 43.g5+-) 43.g5 Kd6 44.h5 White prepares the advance g6 44...Kc6 (44...Ke7+-) 45.Bh7! Bh7 46.g6 Bg8 47.h6 Be6 48.h7 Bd5 49.h8Q Be6 50.Qa8 Kd6 51.Qa6 Ke7 (51...Kd5 52.Qb5 Kd6 53.Be5 Ke7 54.Qb8 Bf5 55.Qd6 Ke8 56.Bf6 Bg6 57.Qe7) 52.Be5 Bd7 (52...Kd7 53.Qd6 Ke8 54.Bf6 Bd5 55.Qe7) 53.Qd6 Ke8 54.Bf6 Bf5 (54...Be6 55.Qe7) 55.Qe7 1–0. Fritz 6 – Caissa, 2007.

12.h3 0-0=+ 13.d3 dc4 (13...Qe7 14.Nbd2=+) 14.dc4= Qe7 15.Nbd2 (15.Qd3 Be4 16.Qd2 Rd8=) 15...e5=+ 16.Qc2 e4 17.Ne1 (17.Nh2 Rd8=+) 17...Qe6 18.Bb2 Ne5 19.Qb3 Rd8 20.Nc2 (20.Bc3 Nfd7=+) 20...Bc7 (better 20...Nf3! 21.Bf3 ef3 22.Nf3 Bf3 23.Bf6 gf6-+) 21.Rd1= Ne8 22.Nf1? (better 22.Ne1=+) 22…Rd1-+ ½-½. Mely (2565) - 04treu (2660), ChessWorld.net, 2012.

13.0-0 0-0 14.Bb2 Ra8 (14...Bd6 15.cd5 Nd5 16.Ne4 Ra8 17.Qc2 Ra5 18.Nd6 Qd6 19.d4 cd4; 14...e5 15.Nh4 Re8 16.Nf5 Bd6 17.Bf3 Bf8 18.cd5 Nd5 19.Nc4 g6; 14...dc4 15.dc4 Bd6 16.Qc2 Ra8 17.Bd3 Ne5 18.Be5 Be5 19.Rd1 Ra1; 14...Rd8 15.Qc2 Ra8 16.cd5 Nd5 17.Rc1 Bd6 18.Ne4 e5 19.Nd6 Qd6; 14...Rc8 15.Qc2 Ra8 16.cd5 Nd5 17.Rc1 e5 18.d4 ed4 19.Bd4 Bd6) 15.Qc2 Ne8 (15...Bd6 16.cd5 Nd5 17.Nc4 e5 18.Ra1 Ra1 19.Ba1 f6) 16.Ra1 Ra1 17.Ba1 Bf6 (17...e5 18.cd5 Bd5 19.Bb2 f6) 18.Bf6 Ndf6 (18...Nef6 19.cd5 Nd5) 19.Qa4 (19.Qc3 Nd6) 19...h6 (19...e5) 20.h3 Nd6 21.Ne5 Nf5 22.Nef3 Nd7 23.Qc2 Qd8 24.Qb2 Qc7 25.Ne1 (25.Qc2 Nd6) 25...Nd6 26.Bf3 Qb8 27.Qa1 Qa8 28.Qa8 Ba8 29.Be2 e5 30.f3 f5 31.g3 g5 32.g4 (32.f4 Kf7) 32...f4 33.e4 d4 ½–½. Buczinski,Henryk (2185) – Kovacs,Arthur (2360), Wc–2012–T–00005, 2010.

13.Bb2 A) 13...e5 A1) 14.Nh4 g6 (14...0-0 15.Nf5 Re8 16.0-0 Bf8 17.Bf3; 14...dc4 15.Nc4 0-0 16.Bf3 Nd5 17.Nf5; 14...Bd8 15.0-0 0-0 16.Nf5 g6 17.Nh6) 15.0-0 0-0 16.Qc2 Ra8 17.Ra1; A2) 14.0-0 0-0 (14...Bd6 15.cd5 Nd5 16.Nh4 0-0 17.Nf5; 14...e4 15.Nh4 Bd6 16.h3 Bh2 17.Kh1 Be5; 14...d4 15.Nh4 0-0 16.Nf5 Bd6 17.Bf3) 15.Nh4 Ra8 16.Nf5 Bf8 17.Qc2; A3) 14.Qc2 d4 (14...0-0 15.cd5 Nd5 16.0-0 Ra8 17.Ra1; 14...Bd6 15.e4 d4 16.0-0 0-0 17.Ra1; 14...h6 15.cd5 Nd5 16.Nc4 Bf6 17.e4) 15.Nb3 Bd6 16.Nh4 0-0 17.Nf5; A4) 14.cd5 Nd5 (14...Bd5 15.e4 Be6 16.Ng5 Nf8 17.Nc4) 15.Nc4 Bf6 16.Qa1 0-0 17.Be5; B) 13...Bd6 B1) 14.0-0 0-0 (14...e5 15.cd5 Nd5 16.Ne4 0-0 17.Qc2; 14...Ng4 15.h3 Ngf6 16.Qc2 0-0 17.Ra1; 14...dc4 15.Nc4 0-0 16.Nd6 Qd6 17.Nd2) 15.cd5 Nd5 16.Nc4 Ra8 17.Nd6; B2) 14.Qc2 0-0 (14...dc4 15.dc4 0-0 16.0-0 Rd8 17.Ra1; 14...e5 15.e4 d4 16.0-0 0-0 17.Ra1; 14...Ne5 15.Be5 Be5 16.Ne5 Qe5 17.0-0) 15.cd5 ed5 16.0-0 Re8 17.Rc1; B3) 14.Qb3 0-0 (14...dc4 15.Qc4 0-0 16.0-0 Ra8 17.Ra1; 14...e5 15.cd5 Bd5 16.Qc3 0-0 17.Nc4; 14...Ne5 15.Be5 Be5 16.Ne5 Qe5 17.0-0) 15.cd5 ed5 16.0-0 Ra8 17.Ra1; B4) 14.cd5 Nd5 (14...ed5 15.0-0 0-0 16.Qc2 Ra8 17.Ra1; 14...Bd5 15.e4 Bb7 16.Nc4 Be7 17.0-0) 15.Ne4 0-0 16.0-0 Ra8 17.Nd6; C) 13...Qd6 C1) 14.cd5 ed5 (14...Qd5 15.Nc4 Qf5 16.Qa4 Qg6 17.e4; 14...Nd5 15.Nc4 Qc7 16.0-0 0-0 17.Qc2) 15.0-0 0-0 16.Qc2 Ra8 17.Ra1; C2) 14.Qc2 0-0 (14...e5 15.0-0 0-0 16.cd5 Qd5 17.Nc4; 14...Qc7 15.0-0 0-0 16.Ra1 Ra8 17.Ra8; 14...h6 15.0-0 0-0 16.Ra1 Ra8 17.Ra8) 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; C3) 14.0-0 0-0 (14...Qc7 15.cd5 Bd5 16.e4 Bb7 17.Qc2; 14...h6 15.Qc2 0-0 16.Ra1 Ra8 17.Ra8; 14...Qb8 15.Qc2 0-0 16.Ra1 dc4 17.Nc4) 15.Qc2 Ra8 16.Ra1 Ra1 17.Ba1; C4) 14.Qb3 0-0 (14...Qc7 15.0-0 0-0 16.Ra1 Ra8 17.Ra8; 14...e5 15.cd5 Bd5 16.Qc3 0-0 17.e4; 14...h6 15.0-0 0-0 16.Ra1 Ra8 17.Ra8) 15.Qc3 Ra8 16.0-0 Ne8 17.Ra1; D) 13...dc4 D1) 14.dc4 0-0 (14...Bd6 15.0-0 e5 16.Nh4 e4 17.Kh1; 14...e5 15.Qc2 0-0 16.e4 Ra8 17.0-0; 14...Bf8 15.0-0 Bd6 16.Qc2 0-0 17.Ra1) 15.0-0 Bd6 16.Qc2 Ra8 17.Rd1; D2) 14.Bf6 Bf6 (14...Nf6 15.dc4 Bd6 16.0-0 e5 17.Nh4; 14...Bf3 15.Bf3 Bf6 16.dc4 0-0 17.Be4) 15.dc4 0-0 16.0-0 Rd8 17.Qc2; D3) 14.Nc4 0-0 (14...Bd5 15.Qc2 0-0 16.e4 Bc4 17.dc4; 14...Bd6 15.Nd6 Qd6 16.e4 Qe7 17.Qa1; 14...Qb8 15.0-0 0-0 16.Nfe5 Ne5 17.Be5) 15.Qc2 Ra8 16.e4 Qd8 17.0-0; E) 13...0-0 E1) 14.Qc2 Ra8 (14...Bd6 15.cd5 ed5 16.0-0 Ra8 17.Ra1; 14...e5 15.cd5 Nd5 16.0-0 Ra8 17.Ra1; 14...Rd8 15.0-0 Bd6 16.Ra1 dc4 17.dc4) 15.0-0 e5 16.Ra1 Ra1 17.Ba1; E2) 14.Qb3 Bd6 (14...Ra8 15.0-0 Bd6 16.Ra1 Ra1 17.Ba1; 14...e5 15.cd5 Bd5 16.Qc3 Bd6 17.Nc4; 14...Rc8 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1) 15.cd5 ed5 16.0-0 Ra8 17.Ra1; E3) 14.cd5 Nd5 (14...Bd5 15.e4 Bb7 16.0-0 Ra8 17.Nc4; 14...ed5 15.0-0 Ra8 16.Qb3 Bd6 17.Rc1) 15.0-0 Bf6 16.Bf6 N7f6 17.Qb3; E4) 14.0-0 Ra8 (14...Bd6 15.cd5 Nd5 16.Nc4 Ra8 17.Nd6; 14...Rd8 15.Qc2 Ra8 16.cd5 Nd5 17.Rc1; 14...e5 15.Nh4 Ra8 16.Nf5 Bf8 17.Bf3) 15.Qc2 Ra2 16.Ra1 Ra1 17.Ba1.

13.Qb3 A) 13...Bd6 A1) 14.0-0 0-0 (14...e5 15.cd5 Bd5 16.Nc4 0-0 17.e4; 14...dc4 15.Nc4 0-0 16.Nd6 Qd6 17.d4; 14...Ng4 15.h3 Nh2 16.Rd1 0-0 17.Ne1) 15.cd5 Bd5 16.Qc3 Ra8 17.e4; A2) 14.Qc2 0-0 (14...e5 15.0-0 0-0 16.e4 d4 17.Bb2; 14...dc4 15.dc4 0-0 16.Bd3 Ne5 17.Be5; 14...Ne5 15.Be5 Be5 16.Ne5 Qe5 17.0-0) 15.cd5 ed5 16.0-0 Ra8 17.Rc1; A3) 14.Bb2 0-0 (14...dc4 15.Qc4 0-0 16.0-0 Ra8 17.Ra1; 14...e5 15.cd5 Bd5 16.Qc3 0-0 17.e4; 14...Ne5 15.Be5 Be5 16.Ne5 Qe5 17.0-0) 15.cd5 ed5 16.0-0 Ra8 17.Rc1; A4) 14.cd5 Nd5 (14...ed5 15.0-0 0-0 16.Rc1 Ra8 17.Bc3; 14...Bd5 15.Qc3 e5 16.Nc4 0-0 17.Nfe5) 15.Ne4 0-0 16.0-0 Ra8 17.Rc1; B) 13...e5 B1) 14.0-0 0-0 (14...Bd6 15.cd5 Bd5 16.Nc4 0-0 17.e4; 14...e4 15.Nh4 Bd6 16.h3 0-0 17.Nf5; 14...d4 15.Nh4 0-0 16.Nf5 Bd6 17.Bb2) 15.Nh4 Ra8 16.Nf5 Bf8 17.Bf3; B2) 14.Nh4 0-0 (14...Bd6 15.0-0 0-0 16.Nf5 Ra8 17.Rd1; 14...dc4 15.Nc4 0-0 16.Nf5 Re8 17.0-0; 14...g6 15.0-0 Bd6 16.Bb2 d4 17.Bf3) 15.Nf5 Bd6 16.0-0 Ra8 17.Bc3; B3) 14.d4 cd4 (14...ed4 15.ed4 0-0 16.0-0 Re8 17.cd5; 14...e4 15.Ne5 cd4 16.ed4 0-0 17.0-0; 14...Bd6 15.de5 Ne5 16.Be5 Be5 17.cd5) 15.ed4 e4 16.Nh4 g6 17.Bb2; B4) 14.cd5 Nd5 (14...Bd5 15.Qc3 Bd6 16.Nc4 0-0 17.Nfe5) 15.Qb2 f6 16.0-0 0-0 17.Qb3; C) 13...Qd6 C1) 14.Bb2 0-0 (14...Qc7 15.0-0 0-0 16.Ra1 Ra8 17.Ra8; 14...e5 15.cd5 Bd5 16.Qc3 0-0 17.e4; 14...h6 15.0-0 0-0 16.Ra1 Ra8 17.Ra8) 15.Qc3 Ra8 16.0-0 Ne8 17.Ra1; C2) 14.Bc3 0-0 (14...e5 15.cd5 Nd5 16.Nc4 Qe6 17.Be5; 14...Qc7 15.0-0 0-0 16.Qb2 Bd6 17.Ra1; 14...h6 15.cd5 ed5 16.0-0 0-0 17.Ra1) 15.0-0 Ra8 16.Qb2 Qc7 17.Ne5; C3) 14.cd5 ed5 (14...Qd5 15.Nc4 Qf5 16.e4 Qg6 17.0-0; 14...Nd5 15.Qb2 N7f6 16.Nc4 Qd8 17.0-0; 14...Bd5 15.Qc2 Qc7 16.e4 Bb7 17.Nc4) 15.0-0 0-0 16.Bc3 Ra8 17.Ra1; C4) 14.0-0 0-0 (14...Qc7 15.Bc3 0-0 16.Ra1 Ra8 17.Ra8; 14...h6 15.cd5 Qd5 16.Qa4 Qd6 17.Nc4; 14...Qb8 15.cd5 Bd5 16.Qc2 0-0 17.Bc3) 15.cd5 ed5 16.Bc3 Ra8 17.Qc2; D) 13...dc4 D1) 14.dc4 Bd6 (14...e5 15.0-0 e4 16.Nh4 Bd6 17.h3; 14...0-0 15.0-0 Bd6 16.Rd1 e5 17.Nh4; 14...h6 15.0-0 0-0 16.Rd1 Bd6 17.Qc3) 15.0-0 0-0 16.Qc3 Ra8 17.Bd3; D2) 14.Qc4 0-0 (14...e5 15.e4 0-0 16.Qc3 Bd6 17.Nc4; 14...Bd6 15.Ne4 e5 16.Nd6 Qd6 17.d4; 14...Bd5 15.Qc2 0-0 16.0-0 Ra8 17.Nc4) 15.0-0 Ra8 16.Bb2 Ra5 17.e4; D3) 14.Nc4 0-0 (14...Nd5 15.0-0 0-0 16.Rd1 Rd8 17.Bb2; 14...Bd6 15.e4 Be7 16.0-0 0-0 17.Nfe5; 14...Bd5 15.0-0 0-0 16.Qc2 Ra8 17.e4) 15.Qc3 Ra8 16.0-0 Ne8 17.Rd1; E) 13...0-0 E1) 14.Bb2 Bd6 (14...Ra8 15.0-0 Bd6 16.Ra1 Ra1 17.Ba1; 14...e5 15.cd5 Bd5 16.Qc3 Be6 17.e4; 14...Rd8 15.0-0 Ra8 16.Qc3 Bd6 17.cd5) 15.0-0 dc4 16.dc4 Rd8 17.Rd1; E2) 14.Bc3 e5 (14...Bd6 15.0-0 dc4 16.dc4 e5 17.Nh4; 14...Ra8 15.0-0 e5 16.cd5 Nd5 17.Ra1; 14...Rd8 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1) 15.0-0 d4 16.Bb2 de3 17.fe3; E3) 14.Qc3 Ra8 (14...Bd6 15.0-0 Ra8 16.cd5 ed5 17.Rc1; 14...Re8 15.0-0 e5 16.cd5 Nd5 17.Qb2; 14...Rd8 15.0-0 Bd6 16.cd5 ed5 17.Bb2) 15.Bb2 Bd6 16.0-0 e5 17.cd5; E4) 14.0-0 Ra8 (14...Bd6 15.cd5 Bd5 16.Qc3 Ra8 17.e4; 14...e5 15.Nh4 Ra8 16.Nf5 Bf8 17.Bf3; 14...Re8 15.cd5 Bd5 16.Qc2 Ra8 17.Nc4) 15.Bc3 Bd6 16.Ra1 Ra1 17.Ba1.

13.Qc2 A) 13...e5 A1) 14.0-0 0-0 (14...Bd6 15.e4 d4 16.Bb2 0-0 17.Ra1; 14...d4 15.Nh4 0-0 16.Nf5 Bd6 17.Bb2; 14...Bf8 15.e4 d4 16.Bb2 Be7 17.Ra1) 15.e4 d4 16.Nh4 Re8 17.Nf5; A2) 14.Bb2 d4 (14...0-0 15.cd5 Nd5 16.0-0 Ra8 17.Ra1; 14...Bd6 15.e4 d4 16.0-0 0-0 17.Ra1; 14...h6 15.cd5 Nd5 16.Nc4 Bf6 17.0-0) 15.Nb3 Bd6 16.e4 0-0 17.0-0; A3) 14.Nh4 0-0 (14...Bd6 15.Nf5 0-0 16.0-0 Ra8 17.cd5; 14...g6 15.0-0 0-0 16.Nhf3 Ra8 17.e4; 14...dc4 15.Nc4 0-0 16.Nf5 Re8 17.0-0) 15.Nf5 Bd8 16.0-0 g6 17.Nh6; A4) 14.cd5 Nd5 (14...Bd5 15.e4 Be6 16.Nc4 Ng4 17.h3) 15.Nc4 Bf6 16.0-0 0-0 17.e4; B) 13...Qd6 B1) 14.0-0 0-0 (14...Qc7 15.cd5 Bd5 16.e4 Bb7 17.d4; 14...Qb8 15.Bc3 0-0 16.Ra1 Bd6 17.Bb2; 14...h6 15.Bc3 0-0 16.Ra1 Ra8 17.Ra8) 15.Bb2 Ra8 16.Ra1 Ra1 17.Ba1; B2) 14.Bc3 0-0 (14...e5 15.cd5 Nd5 16.Nc4 Qe6 17.Be5; 14...Qc7 15.0-0 0-0 16.Ra1 Bd6 17.Bb2; 14...h6 15.0-0 0-0 16.Ra1 Ra8 17.Ra8) 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; B3) 14.Bb2 0-0 (14...e5 15.0-0 0-0 16.cd5 Qd5 17.Nc4; 14...Qc7 15.0-0 0-0 16.Ra1 Ra8 17.Ra8; 14...h6 15.0-0 0-0 16.Ra1 Ra8 17.Ra8) 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; B4) 14.cd5 ed5 (14...Qd5 15.e4 Qh5 16.Ne5 Qh6 17.Ndc4; 14...Nd5 15.Nc4 Qc7 16.0-0 0-0 17.Bb2) 15.0-0 0-0 16.Bc3 Ra8 17.d4; C) 13...Bd6 C1) 14.0-0 0-0 (14...e5 15.e4 d4 16.Bb2 0-0 17.Ra1; 14...Ng4 15.cd5 Bh2 16.Kh1 ed5 17.Bg7; 14...dc4 15.Nc4 0-0 16.Nd6 Qd6 17.Nd2) 15.cd5 Nd5 16.Bb2 Ne5 17.Be5; C2) 14.Bb2 0-0 (14...dc4 15.dc4 0-0 16.0-0 Ra8 17.Bd3; 14...e5 15.e4 d4 16.0-0 0-0 17.Ra1; 14...Ne5 15.Be5 Be5 16.Ne5 Qe5 17.0-0) 15.cd5 ed5 16.0-0 Ra8 17.Ra1; C3) 14.Bc3 0-0 (14...e5 15.e4 d4 16.Bb2 0-0 17.0-0; 14...dc4 15.dc4 0-0 16.0-0 Ra8 17.Rd1; 14...Ne5 15.Qb2 Ned7 16.cd5 ed5 17.0-0) 15.0-0 e5 16.e4 d4 17.Bb2; C4) 14.cd5 Nd5 (14...ed5 15.0-0 0-0 16.Bb2 Re8 17.Rc1; 14...Bd5 15.e4 Bb7 16.Nc4 Be7 17.0-0) 15.Ne4 0-0 16.0-0 Ra8 17.Bb2; D) 13...dc4 D1) 14.Nc4 0-0 (14...Nd5 15.0-0 0-0 16.Bb2 Nb4 17.Qd2; 14...Bd6 15.Nd6 Qd6 16.e4 Qe7 17.Ne5; 14...Bd5 15.0-0 0-0 16.e4 Bb7 17.Nfe5) 15.Bb2 Ra8 16.0-0 Ng4 17.Rc1; D2) 14.Qc4 0-0 (14...e5 15.e4 0-0 16.Qc3 Bd6 17.Nc4; 14...Bd6 15.Ne4 e5 16.Nd6 Qd6 17.d4; 14...Bd5 15.Qc2 0-0 16.0-0 Ra8 17.Nc4) 15.0-0 Ra8 16.Bb2 Ra5 17.e4; D3) 14.dc4 0-0 (14...Bd6 15.0-0 0-0 16.Bd3 Rd8 17.Rd1; 14...e5 15.0-0 0-0 16.e4 Ra8 17.Rd1; 14...h6 15.0-0 0-0 16.Rd1 Bd6 17.Bd3) 15.0-0 Ra8 16.Rd1 Bd6 17.Bc3; E) 13...0-0 E1) 14.Bb2 Ra8 (14...Bd6 15.cd5 ed5 16.0-0 Re8 17.Rc1; 14...e5 15.0-0 Ra8 16.Nh4 Bf8 17.Nf5; 14...Rd8 15.0-0 dc4 16.Nc4 Ng4 17.e4) 15.0-0 Bd6 16.cd5 Nd5 17.Ra1; E2) 14.Bc3 e5 (14...Bd6 15.0-0 e5 16.e4 d4 17.Bb2; 14...Ra8 15.0-0 e5 16.Ra1 d4 17.Ra8; 14...Rd8 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1) 15.Bb2 d4 16.e4 Ra8 17.0-0; E3) 14.cd5 Nd5 (14...Bd5 15.0-0 Ra8 16.Nc4 Ng4 17.e4; 14...ed5 15.0-0 Ra8 16.Bc3 Bd6 17.Ra1) 15.0-0 Nb4 16.Qb3 Ra8 17.Nc4; E4) 14.0-0 Ra8 (14...dc4 15.dc4 Ng4 16.Bc3 Rd8 17.Bd3; 14...Rd8 15.Rc1 Bd6 16.cd5 Nd5 17.Nc4; 14...Bd6 15.cd5 Nd5 16.Nc4 f6 17.Nd6) 15.cd5 Nd5 16.d4 Nb4 17.Qb1.

13.Bc3 A) 13...e5 A1) 14.Qc2 d4 (14...0-0 15.cd5 Nd5 16.Bb2 Ra8 17.0-0; 14...Bd6 15.e4 d4 16.Bb2 0-0 17.0-0; 14...Qd6 15.cd5 Nd5 16.Nc4 Qe6 17.Be5) 15.Bb2 0-0 16.e4 Ra8 17.0-0; A2) 14.cd5 Nd5 (14...Bd5 15.e4 Be6 16.Ng5 Qd6 17.Qa1) 15.Bb2 0-0 16.Nc4 Bd6 17.0-0; A3) 14.Qb3 0-0 (14...d4 15.Bb2 0-0 16.0-0 de3 17.fe3; 14...Bd6 15.cd5 Bd5 16.Nc4 0-0 17.0-0; 14...h6 15.0-0 d4 16.Bb2 0-0 17.Nh4) 15.0-0 d4 16.Bb2 de3 17.fe3; A4) 14.d4 ed4 (14...cd4 15.ed4 dc4 16.Bc4 e4 17.Ne5; 14...e4 15.Nh4 cd4 16.Bd4 Bb4 17.Nf5; 14...Bd6 15.de5 Ne5 16.Qa1 Ned7 17.cd5) 15.ed4 Ne4 16.Bb2 dc4 17.Ne4; B) 13...Bd6 B1) 14.Qc2 0-0 (14...e5 15.cd5 Nd5 16.0-0 Nc3 17.Qc3; 14...dc4 15.dc4 0-0 16.0-0 Ra8 17.Rd1; 14...Ne5 15.Ne5 Be5 16.Be5 Qe5 17.0-0) 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; B2) 14.Qb3 0-0 (14...e5 15.cd5 Nd5 16.0-0 0-0 17.Ra1; 14...dc4 15.dc4 0-0 16.0-0 e5 17.Nh4; 14...h6 15.0-0 0-0 16.Ra1 e5 17.cd5) 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; B3) 14.cd5 Nd5 (14...ed5 15.0-0 0-0 16.Re1 Ra8 17.h3; 14...Bd5 15.e4 Bb7 16.Nc4 Bf4 17.g3) 15.Bb2 0-0 16.Ne4 Ra8 17.0-0; B4) 14.0-0 0-0 (14...e5 15.Nh4 0-0 16.Nf5 Ra8 17.Bf3; 14...Ng4 15.h3 Nh2 16.Nh2 Bh2 17.Kh1 0-0; 14...dc4 15.Nc4 0-0 16.Nd6 Qd6 17.Qc2) 15.Qc2 e5 16.e4 d4 17.Bb2; C) 13...dc4 C1) 14.Nc4 Nd5 (14...0-0 15.e4 Ng4 16.h3 Bf6 17.d4; 14...Bd5 15.0-0 0-0 16.Qc2 Ra8 17.Ra1; 14...Qd8 15.0-0 0-0 16.e4 Qc7 17.Qd2) 15.Bb2 Bf6 16.Qd2 0-0 17.0-0; C2) 14.Bf6 Bf6 (14...Nf6 15.Nc4 0-0 16.Qc2 Ra8 17.0-0; 14...Bf3 15.Bf3 Bf6 16.Nc4 Bc3 17.Kf1) 15.dc4 0-0 16.0-0 Ne5 17.Qc2; C3) 14.dc4 0-0 (14...Bd6 15.Qc2 0-0 16.0-0 Ra8 17.Rd1; 14...e5 15.Qc2 0-0 16.e4 Ra8 17.0-0; 14...Ne4 15.Ne4 Be4 16.0-0 0-0 17.Bd3) 15.0-0 Bd6 16.Qc2 Ra8 17.Rd1; D) 13...Qd6 D1) 14.Qc2 0-0 (14...e5 15.cd5 Nd5 16.Nc4 Qe6 17.Be5; 14...Qc7 15.0-0 0-0 16.Ra1 Ra8 17.Ra8; 14...h6 15.0-0 0-0 16.Ra1 Ra8 17.Ra8) 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; D2) 14.cd5 ed5 (14...Nd5 15.Nc4 Qc7 16.Bb2 Bf6 17.Qd2; 14...Qd5 15.Nc4 Qf5 16.Qa4 Qg6 17.e4) 15.0-0 0-0 16.Qc2 Ra8 17.d4; D3) 14.d4 0-0 (14...cd4 15.Nd4 0-0 16.0-0 Rc8 17.Bb2; 14...Qc7 15.0-0 cd4 16.Bd4 e5 17.Bb2; 14...Qb8 15.0-0 0-0 16.Qc2 cd4 17.Nd4) 15.dc5 Nc5 16.Be5 Qd7 17.0-0; D4) 14.0-0 0-0 (14...h6 15.Qc2 0-0 16.Ra1 Ra8 17.Ra8; 14...Ba8 15.cd5 ed5 16.Qc2 0-0 17.Ra1; 14...Qc7 15.cd5 Bd5 16.Qc2 0-0 17.Ra1) 15.Qc2 Ra8 16.Ra1 Ra1 17.Ba1; E) 13...0-0 E1) 14.Qc2 Ra8 (14...e5 15.cd5 Nd5 16.Bb2 Nb4 17.Qc3; 14...Bd6 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1; 14...Rd8 15.0-0 Ra8 16.Ra1 Ra1 17.Ba1) 15.0-0 Bd6 16.Ra1 Ra1 17.Ba1; E2) 14.Qb3 e5 (14...Bd6 15.0-0 dc4 16.dc4 e5 17.Nh4; 14...Ra8 15.0-0 e5 16.cd5 Nd5 17.Ra1; 14...dc4 15.dc4 Bd6 16.0-0 e5 17.Nh4) 15.0-0 d4 16.Bb2 de3 17.fe3; E3) 14.Bb2 Ra8 (14...Bd6 15.cd5 Nd5 16.Nc4 Ra8 17.0-0; 14...e5 15.0-0 Bd6 16.cd5 Bd5 17.e4; 14...Rd8 15.Qc2 Ra8 16.0-0 Bd6 17.cd5) 15.Qc2 Bd6 16.0-0 dc4 17.Nc4; E4) 14.0-0 Bd6 (14...Ra8 15.Qc2 e5 16.Ra1 d4 17.Ra8; 14...e5 15.Nh4 Ra8 16.Nf5 Bf8 17.Bf3; 14...Re8 15.Qc2 Ra8 16.Ra1 Ra1 17.Ba1) 15.Qc2 e5 16.e4 d4 17.Bb2.

13.cd5 A) 13...Bd5 A1) 14.Qc2 0-0 (14...Bb7 15.0-0 0-0 16.Rc1 Ra8 17.d4; 14...Bd6 15.e4 Bb7 16.Nc4 Be7 17.Bc3; 14...e5 15.e4 Be6 16.Nc4 Ng4 17.h3) 15.0-0 Ra8 16.Nc4 Ng4 17.e4; A2) 14.Nc4 0-0 (14...Qb7 15.0-0 0-0 16.Qc2 Rd8 17.Rc1; 14...Bb7 15.Qc2 0-0 16.Bb2 Ra8 17.e4; 14...Qa7 15.Bb2 0-0 16.Qc2 Ra8 17.e4) 15.Qc2 Ra8 16.0-0 Ng4 17.e4; A3) 14.e4 Bb7 (14...Ba8 15.0-0 0-0 16.Qc2 Bb7 17.Nc4) 15.0-0 0-0 16.Qc2 Qf4 17.Nc4; A4) 14.0-0 0-0 (14...Bb7 15.Qc2 0-0 16.Rc1 Ra8 17.d4; 14...e5 15.e4 Be6 16.Qc2 0-0 17.Nc4; 14...Bd6 15.e4 Bb7 16.Nc4 Be7 17.Qc2) 15.Qc2 Ra8 16.Nc4 Ng4 17.e4; B) 13...ed5 B1) 14.Qc2 0-0 (14...Bd6 15.0-0 0-0 16.Bb2 Re8 17.Rc1; 14...Qd6 15.0-0 0-0 16.Bc3 Ra8 17.d4; 14...Bc8 15.0-0 0-0 16.d4 c4 17.e4) 15.0-0 Ra8 16.Bc3 Bd6 17.Ra1; B2) 14.Nh4 0-0 (14...Bd6 15.Nf5 0-0 16.Nd6 Qd6 17.0-0; 14...Nb8 15.Nf5 0-0 16.Qa4 Bd8 17.Qh4; 14...Bf8 15.0-0 Bd6 16.Ndf3 0-0 17.Nf5) 15.Nf5 Bd6 16.Nd6 Qd6 17.0-0; B3) 14.Bc3 0-0 (14...Bd6 15.0-0 0-0 16.Qb3 Ra8 17.Ra1; 14...Qd6 15.0-0 0-0 16.Qc2 Ra8 17.d4; 14...Bf8 15.0-0 Bd6 16.Qb3 0-0 17.Ra1) 15.0-0 Bd6 16.Qb3 Ra8 17.Rc1; B4) 14.0-0 0-0 (14...Bd6 15.Qc2 0-0 16.Bb2 Re8 17.Rc1; 14...Qd6 15.Bc3 0-0 16.Qc2 Ra8 17.d4; 14...Bf8 15.Bc3 Bd6 16.Qb3 0-0 17.Ra1) 15.Bc3 Bd6 16.Qb3 Ra8 17.Rc1; C) 13...Nd5 C1) 14.Nc4 0-0 (14...Bf6 15.0-0 0-0 16.Bf6 N5f6 17.Qc2; 14...f6 15.0-0 0-0 16.Qb3 Bd6 17.Nd6; 14...N5f6 15.Nfe5 0-0 16.0-0 Ra8 17.Bh5) 15.0-0 Ra8 16.Qd2 Nb4 17.Bb2; C2) 14.Bb2 0-0 (14...Bf6 15.Qc2 0-0 16.Bf6 N7f6 17.0-0; 14...Bd6 15.0-0 0-0 16.Nc4 f6 17.d4; 14...Nb4 15.0-0 0-0 16.Qb3 Ra8 17.Rc1) 15.0-0 Bf6 16.Bf6 N7f6 17.Qc2; C3) 14.Qb3 0-0 (14...Bd6 15.Ne4 0-0 16.0-0 Ra8 17.Rc1; 14...e5 15.Nc4 Bf6 16.0-0 0-0 17.Nfd2; 14...N5f6 15.0-0 0-0 16.Nc4 Ng4 17.e4) 15.0-0 Ra8 16.Nc4 Bf6 17.Bf6; C4) 14.0-0 0-0 (14...N5f6 15.Qc2 0-0 16.Rc1 Ra8 17.d4; 14...Bf6 15.Bf6 N7f6 16.Qc2 0-0 17.Ra1; 14...e5 15.Nc4 Bf6 16.Nfd2 0-0 17.Bf3) 15.Nc4 Ra8 16.Qb3 Bf6 17.Bf6.

10.Na3 dc4 11.Ne5 Qd5 12.Nac4 Nc4 13.Nc4 Nd7 14.Qa4 e5 15.f3 Be7 16.Be2 0-0 17.0-0 b6 18.e4 Qe6 19.Ne3 Bg5 20.Bc4 Qd6 21.Bc3 Qh6 22.Nf5 Qf6 23.f4 Bh6 24.fe5 Qg5 25.e6 fe6 26.h4 Qh5 27.Be6 Kh8 28.Qa7 Nf6 29.Bc8 Rc8 30.Qb6 Ne4 31.Nh6 Nc3 32.Nf7 Kg8 33.dc3 Rf8 34.Qe6 1–0. de Visser,Arno – Duinmaijer, 1984.

10.Na3 Bd6 11.Qb3 Qc7 (11...0-0 12.d3+=) 12.h3 (12.Bf6 gf6 13.Bd3 Qe7=) 12...e5+= 13.d3 (13.cd5 Nfd5 (worse is 13...Nbd5 14.b6 Qb6 15.Bb5 Ke7 16.Ne5+=) 14.Bc4 Nb4+= (worse is 14...Nc4 15.Nc4 Nb6 16.Nd6 Qd6 17.Ne5+=)) 13...h6 (13...0-0 14.cd5 Nfd5 15.Be2+=) 14.Nd2 (14.cd5 Nfd5 15.Bb2 Nb4+=) 14...Be6 15.Be2 Qe7 (15...0-0 16.0-0+=) 16.0-0 Nh7 (16...d4!?+=) 17.cd5+= Nd5 (17...Bd5 18.Nac4+=) 18.Nac4 Bc7 (18...0-0 19.Qa3 (19.Be5? Be5 20.Ne5 Ne3-+) 19...Bb8 20.Ne5 Bh3 21.gh3 Be5 22.Be5 Qe5 23.Qc5+=) 19.Qa4 (19.Qa3!? 0-0 20.Ne4+/–) 19...0-0= 20.Nf3 Can e5 get defended? (20.Qa7 Bb8 21.Qa3 f6=) 20...f6 21.Rc1 Qe8 (21...Rd8 22.Bb2=) 22.Rb1 (22.Ncd2 b6=) 22...Nb4 (22...b6 23.Rc1=) 23.Bc3 (23.d4 Qg6 24.Rb3 ed4 25.ed4 Ng5 26.dc5 Nh3 27.Kf1 Nc2+=) 23...Qg6 (23...Nd5 24.Bd2=) 24.Ne1 (24.Bb4 cb4 25.b6 Bb8+=) 24...Bc4 Now all is on d3 (24...Ng5 25.Bb4 Nh3 26.Kh1 Nf2 (26...cb4 27.gh3 Bc4 28.Qc2 Bd5 29.e4+/–) 27.Kg1 A) 27...cb4?! 28.Kf2 e4 29.Qc2= (29.Rb4? Bg3 30.Kg1 Be1-+); B) 27...Nh3 28.Kh1 cb4-/+) 25.Rb4 cb4 26.Bb4 Be6 27.Bf8 Nf8 (27...Kf8?! 28.Qa8 Qe8 29.Qb7-/+) 28.Bf3 b6 29.Qa7 (29.Qc2 Qf7-+) 29...Qf7 30.Nc2?? (30.Qb7-+) 30…e4! (30...e4 31.g3 ef3-+) 0–1. De Visser,Arno – Duinmaijer, 1984.

10.Qc2 Nc4 11.Bc4 dc4 12.Qc4 b6 13.0-0 Bb7 14.Ne5? (better is 14.Bf6!? Qf6 15.e4+=) 14...Qa8-/+ 15.Nc3 Bg2 16.Re1 Bd5 (16...Bd6 17.Nf7 Kf7 18.e4-+) 17.Qa4 (17.Nd5 Qd5 18.d4 h5-/+) 17...Bd6 18.Qa8 Ba8 19.Nc4 (19.Na4 Bc7-/+) 19...Bc7 20.Bb2 Bd5 (20...Bf3 21.Ra1-/+) 21.d3 (21.Nd5 ed5 (21...Nd5?! 22.Ra1=) 22.Bf6 gf6-/+) 21...0-0 (21...Ke7 22.Ra1 Bc4 23.dc4-/+) 22.Ra1 Ra8 23.Ra6 Rb8 (23...Bb7 24.Ra8 Ba8 25.f4-/+) 24.Ra7 (24.Nd5 Nd5 25.Ra7=) 24...Bd8 (better is 24...Bc4 25.dc4 Ne8+=) 25.Nd5+- ed5 26.Ne5 (26.Nd6 Ng4+=) ½–½. Jensen,Helmut – Hagen,Horst, GER–chT Seniors, 2004.

10.Qc2 Nc4 11.Bc4 dc4 12.Qc4 Qd5 13.Qa4 Qd3 14.Na3 Nd7 15.Bc3 f6 16.Qc4 Qd6 17.Qe2 Nb6 18.Nh4 Kf7 (18...Qd7 19.e4=) 19.0-0 e5 20.f4 (20.d3 Be6=) 20...ef4 (20...e4 21.Ba5=) 21.Rf4 Nd5 22.Rf1 Qe6 23.Nf3 Kg8 24.e4 Nf4 25.Qe3 Qg4 26.g3 Ng6 27.Qd3 Be6 28.Kf2 (28.Nc2 Nf4 29.Qe3 Nh3 30.Kg2 Bc4+=) 28...h5+= 29.Nc4 h4 30.Ne3 c4 31.Qd4 (31.Nc4 hg3 32.hg3 Rh3+=) 31...Qh5+= 32.Qd8 (32.Nd5!?+=) 32...Qb5 (32...hg3 33.hg3 Qb5 34.Qc7-/+) 33.gh4 Qd7 (better is 33...Nh4!? 34.Rg1 Kf7-/+) 34.Qd7= Bd7 35.Nc4 Nh4 36.Nd4 Ng6 37.Rb1 Rh2 38.Kg3 (38.Kg1!? Rh4 39.Rb7=) 38...Rh3+= 39.Kf2 b5 40.Nb6 (worse is 40.Nb5 Bc5 41.Ne3 Bc6-+) 40...Be8 41.Nb5 Bc5 42.Bd4 Rh2 43.Ke3 Bb5 44.Bc5 Ba6 45.Ra1 Rh3 46.Kf2 Bd3 47.Ra8 Kh7 48.Bd6 Nh4 (48...Be4 49.Ra3 Ra3 50.Ba3-/+) 49.Bg3+= Be4 50.Ra4 Nf5 51.Re4 Rg3 52.Rf4 Rb3 53.Nd5 Kg6 54.Ra4 Rb7 55.d3 Kf7 56.Ra5 Ne7 57.Ne7 Ke7 58.Ke3 Ke6 59.d4 Rd7 60.Ra6 Rd6 61.Ra1 g5 62.Rg1 Rb6 63.Kd3 Kd5 64.Rf1 Ra6 65.Ke3 Ke6 66.Kd3 f5 67.d5 Ke5 Black intends f4 68.Kc4 f4 69.Rg1 Kf5 70.Rd1 (70.Kc5 Ra8 71.d6 f3-+) 70...f3 71.Kd3 (71.d6 f2 72.Kd5-+) 71...g4 72.Ke3 Ra3 73.Kf2 Ra2 74.Ke3 Re2 75.Kd3 Re5 (75...Re5 76.Rf1 Kf4-+) 0–1. pierred (2850) – pcmvr, net–chess.com, 2016.

10.Qb3 0-0 11.Na3 (11.Bb2 b6+=) 11...Qe7 (11...d4 12.Be2-/+) 12.d3 (12.b6 Qd8+=) 12...d4 13.Nc2 e5 14.e4 (14.Be2!?+=) 14…Bc7 (14...Bc7 15.Be2 Nh5+=). Hecht – Teschner, Berlin, 1957.

10.Nc3 b6 11.Be2 Bb7 12.0-0 Qc7 13.h3 0-0 14.d3 Rd8 15.Qb1 Ne5 16.cd5 ed5 17.Ne5 Be5 18.Rc1 d4 19.Nd1 Nd5 20.ed4 Nf4 21.Bf1? Nh3!-+ 22.Kh1 Bf4?? 23.Rc2 Qe7 24.f3 Qe1 25.Nc3 Qg3 0–1. Rebber,Christian (2150) – Sandipan,Chanda (2510), Muensterland op, 2002.

10.d3 0-0 11.Nbd2 b6 12.Be2 Bb7 13.Qc2 (13.cd5 ed5 (worse is 13...Bd5 14.e4+/–) 14.Nh4 Re8+=) 13...Qc7 14.h3 (14.cd5 ed5 15.0-0 Ra8=) 14...e5+= 15.e4 d4 16.Bb2 Nh5 (16...Ra8 17.Nb3+=) 17.Ne5 Ne5 (17...Be5 18.Bh5) 18.Bh5+= Qe7 19.Be2 (19.0-0 Qh4 20.Be2 f5+=) 19...Qg5 (19...f5 20.0-0+=) 20.g4 (20.0-0!? Qh4 21.Bc1+=) 20...f5= 21.Nf3 (21.h4 Qf4 22.gf5 Rf5+=) 21...Nf3+= 22.Bf3 fe4 23.Be4 Be4 24.de4 Qf4 25.Qe2 Be5 (25...Ra8 26.Kd1-/+) 26.Rg1 (26.h4 Re8 27.f3 Ra8-/+) 26...Qh2 (26...Qf7 27.Rg2 d3 28.Qd3 Bb2 29.Qd5-/+) 27.Qf1 Rf3 (27...Ra8 28.Rg2 Qh3 29.f3-+) 28.Bc1 Qh3 (better is 28...Rh3!? 29.Rg2 Rc3-/+) 29.Qh3= Rh3 30.f4 Bc7 31.Bd2 Kf7 32.Kf2 Ra3 33.Ke2 Ra4 34.Rc1 Ra2 35.Rf1 Ra4 36.e5+= Ra3 37.Rf3 Rf3 38.Kf3+/– g5 39.f5 Be5 40.Bg5 Kg7?? 41.Ke4?? Bf6 42.Bf4+/– Bd8 43.g5 Kf7 44.Kd5 Ke7 45.Kc6 Kf7 46.Kd7 Be7 47.Kc7 (47.Kc7 d3 48.Kb6 Bd8 49.Kc5+-) 1–0. Mroz,Antoni – Guziec,Krzysztof, corr 1AMM Poland, 1991.

10.d3 0-0 11.Be2 b6 12.Nbd2 Bb7 13.Qc2 Qc7 14.0-0 Ra8 15.Bc3 e5 16.cd5 Nd5 17.Nc4 Nc3 18.Qc3 Bd5 19.Ng5 Be7 20.Bf3 Bf3 21.Nf3 f6 22.Ra1 Ra1 23.Qa1 Qd8 24.Qa7 Kh8 25.Qb7 Bf8 26.Nfd2 1–0. marekt – tjrm, ChessWorld.net, 2004.

10.d3 0-0 11.Be2 b6 12.Nbd2 Bb7 13.Qc2 e5 14.cd5 Nd5 15.Nc4 Qe7 16.Qb2 f6 17.Qb3 Kh8 18.Nh4 (18.0-0 Ra8=+) 18...Bc7 (18...Ra8 19.0-0 Qe6 20.Nf5=) 19.Nf5= Qe6 20.e4 (20.Bg4 g6 21.Nh6 f5-/+) 20...Nf4=+ 21.Bf3 Ra8 22.Bb2 g6 23.Nfe3 h5 (23...Bd6 24.0-0 Qg8 25.Qc2=) 24.h4 (24.0-0 Bd6=) 24...Qf7 25.g3 Ne6 26.Nd2 Nd8 (26...Bd6 27.g4 Bc8 28.Qd5+-) 27.Qf7= Nf7 28.g4 hg4 (28...Ra2 29.Ndc4 hg4 30.Bg4=) 29.Bg4 f5 (better is 29...Ra2!? 30.Ndc4 Bc8=) 30.h5+/– fg4 31.hg6 Kg7 32.gf7 Ra5 (32...Ra2 33.Ndc4 Kf7 34.Ng4+-) 33.Ndc4+/– Rb5 34.Ng4 Kf7+/– 35.Nge5 Be5 36.Rh7+= (White fights for the initiative) 36...Ke6 37.Be5 Ne5 38.Rh6+/– Kd7 39.Ne5+- Kc7 40.f4 Rb4 41.Rh7 Kc8 42.Nc4 Ba6 43.Nd6 Kd8 44.Nf7 Ke8 45.Kd2 Kf8 46.Ne5 Rd4 47.Ke3 Rd6 48.Ra7 Bb5 49.f5 Ke8 50.Rb7 Kf8 51.Nc4 Bc4 52.dc4 Rd4 53.Rb6 Rc4 54.Rb7 Rc1 55.Kf4 c4 56.Ke5 (56...c3 57.Kf6+-) 1–0. Myrberg,Johnny – Aurell,Bo, Sweden, 1989.

10.d3 0-0 11.Be2 Qc7 12.Nbd2 (12.Qc2 A) 12...Rd8 A1) 13.Nbd2 e5 (13...b6 14.cd5 Nd5 15.Ne4 Bb7 16.0-0 Nb4) 14.cd5 Nd5 15.0-0 Nb4 16.Qb2 Re8; A2) 13.0-0 dc4 (13...e5 14.cd5 Nd5 15.Nbd2 Nb4 16.Qb2 Re8; 13...b6 14.cd5 Nd5 15.Nbd2 Bb7 16.Ne4 e5) 14.dc4 b6 15.Rd1 Bb7 16.Nbd2 e5; B) 12...b6 B1) 13.0-0 Bb7 (13...e5 14.cd5 Nd5 15.Nbd2 Bb7 16.Nc4 Ra8; 13...dc4 14.dc4 Bb7 15.Nbd2 Ra8 16.Bd3 Be5; 13...Re8 14.Nbd2 Bb7 15.Bb2 Ra8 16.cd5 ed5) 14.cd5 Nd5 15.Nbd2 Ne5 16.Be5 Be5; B2) 13.Nbd2 Bb7 (13...e5 14.cd5 Nd5 15.0-0 Bb7 16.Ne4 Ra8) 14.cd5 ed5 15.0-0 Ra8 16.Rc1 Ra5; B3) 13.cd5 ed5 (13...Nd5 14.Nbd2 Bb7 15.0-0 Ra8 16.Ne4 e5) 14.0-0 Re8 15.Nbd2 Ng4 16.h3 Ngf6; 12.cd5 A) 12...Nd5 13.Nc3 N7f6 (13...b6 14.Nd5 ed5 15.0-0 Re8 16.Qc2 Nf8; 13...Nc3 14.Bc3 b6 15.Qa4 Bb7 16.Qh4 Ra8; 13...Rd8 14.0-0 Nc3 15.Bc3 b6 16.Qa4 Bb7; 13...Qa5 14.Qa4 Qa4 15.Na4 b6 16.Nc3 Bb7) 14.0-0 Ng4 15.Qb3 Bh2 16.Kh1 Nb6; B) 12...ed5 13.0-0 b6 (13...Ng4 14.h3 Ngf6 15.Qc2 Re8 16.Bb2 Qb6; 13...Re8 14.Qc2 b6 15.Nbd2 d4 16.Nc4 de3; 13...Qa5 14.Nc3 Re8 15.Qb3 Nb6 16.Bb2 Bd7) 14.Qc2 Bb7 15.Rc1 Ra8 16.Nbd2 Qd8) 12...b6 13.0-0 (13.cd5 Nd5 (13...ed5 14.0-0 Bb7 15.Bc3 Ra8 16.Re1 Ne5) 14.Nc4 Bb7 15.0-0 e5 16.Nh4 f5; 13.Qc2 Bb7 14.cd5 ed5 15.0-0 Ra8 16.Rc1 Ng4) 13...Bb7 14.Bb2 (14.cd5 Bd5 15.e4 Bb7 16.Nc4 Bf4) 14...dc4 (14...Ra8 15.Qc2 e5 16.cd5 Nd5) 15.Nc4 (15.dc4 e5 16.Nh4 e4) -/+. Sokolski,Alexey – Shifman, corr URS, 1940.

10.d3 dc4 11.dc4 Qe7 12.Nc3 (12.Bd3 e5 13.Nc3 Nb6=) 12...0-0 13.Bd3 b6 14.Qc2 Bb7 15.Ne4 Bc7 (15...Be4 16.Be4 Ne4 17.Qe4=) 16.Nf6 Nf6 17.Ng5 (17.Bf6 Qf6 18.Bh7 Kh8=) 17...h6 18.Nh7 Nh7 (18...Bg2? 19.Nf6 Qf6 20.Bf6 Bh1 21.Bh7 Kh8 22.Bc3+-) 19.Bh7 Kh8 20.Be4 =. Sokolski,Alexey – Poljak, SU, 1948.

10.cd5 ed5 11.Be2 0-0 12.0-0 b6 (12...Re8 13.Qc2+=) 13.d4 Qc7 Black prepares c4 (13...c4 14.Nc3=) 14.Nbd2 (14.dc5 bc5 15.Qd3 c4=) 14...Bb7 (14...c4 15.Qc2+=) 15.g3 (15.dc5 bc5 16.Qc2 Re8=) 15...Ra8 (15...c4 16.Bc3+=) 16.Qc2 (16.dc5 bc5 17.Qc2 Ra3=) 16...h6 (16...c4 17.Bc3+=) 17.Rc1 (17.dc5 bc5 18.Rb1 Qb6=) 17...c4 18.Bc3 Qb8 (18...Qd8 19.Nh4=) 19.Ra1 (19.Nh4 Bf8=) 19...Ra1+= 20.Ba1 Bb4 (20...Qe8 21.Bc3+=) 21.Bc3= Bc3 22.Qc3 Qa8 23.Bd1 (23.Ne5 Qa5 24.Qa5 ba5 25.Nd7 Nd7+=) 23...Qa5 24.Qa5 ba5 25.Bc2 Kf8 (25...Nb6 26.Nb1+=) 26.Nb1 Ne4 27.Be4 (27.Nh4 Nd6 28.Nc3 Nb6+=) 27...de4 28.Nfd2 Nb6 29.Nc3 f5 30.Kf1 Ke7 31.Ke2 Kd6 32.Ndb1 g6 33.Kd2 h5 34.h4 Bc8 35.Na3 Be6 36.Kc2 Bf7 37.Nd1 Be6 38.Nb2 Bg8 39.Kc3 Nd5 40.Kc4 Ne3 41.Kc3 Nd5 42.Kd2 Nb6 43.Ke3 Nd5 44.Kd2 Nb6 45.Nb1 Ba2 46.Nc3 Bb3+= 47.Nb1 ½–½. Kretschmar,Heinz – Ahman,Harry, corr ICCF, 1984.

10.Be2 0-0 (--> 8.Nf3 Bd6 9.c4 0-0 10.Be2 Nbd7).

9.c4 b6 10.Nc3 0-0 11.Qb3 (11.Qc2 Nbd7=+) 11...Bb7=+ 12.Ne5 (12.cd5 ed5 13.Be2 Qd6=+) 12...Bd6 (12...Qd6 13.Na4-/+) 13.Na4 (13.f4 Be5 14.fe5 Ng4 15.cd5 ed5-/+) 13...Nbd7 14.Nc6 (better 14.Nd7 Nd7 15.cd5 ed5 16.Be2-/+) 14...Qa8 (14...Qc7 15.Bb2-/+) 15.Bb2 (better 15.Bf6!? Nf6 16.Nb6 Qa1 17.Qd1 Qd1 18.Kd1=+) 15...Bc6-/+ 16.bc6 Qc6 17.cd5 Qd5 (17...ed5 18.Bb5 Qb7 19.0-0-/+) 18.Qb5 (18.Qd5 ed5 19.Bb5 Ra8=+) 18...Bc7 (18...Ra8 19.Nc3 Qb7 20.Qb3-/+) 19.Nc3-/+ Qd6 (19...Qa8 20.f3-/+) 20.Be2=+ Ra8 (better 20...Rd8=+) 21.Bf3? (better 21.f4=+) 21...Ra5-+ 22.Qb3 (better 22.Qc6 Ne5 23.Qd6 Nf3 24.Ke2 Bd6 25.Kf3-+) 22...g5?? (better 22...Ne5-+) 23.Nb5+- Rb5 24.Qb5 Ne5 25.Be2 h5 (25...Qd5 26.f3+-) 26.f4 (26.d4 cd4 27.Bd4 Kf8+-) 26...gf4 27.ef4 Ned7 28.Qd3 (better 28.Rf1!?+-) 28...Qf4+= 29.Rf1 (29.g3 Qg5+=) 29...Qg5 30.Bh5?? (better 30.Qe3 Qe3 31.de3=) 30...Qh5 (30...Bh2? 31.Bf7 Kf8 32.Be6+-) 31.Rf6 (31.Bf6?? Nf6 32.Qf3 Ng4-+) 31...Nf6 32.Bf6 Qf5 (better 32...Qh2 33.Qe4 Bg3 34.Ke2 Qh5 35.Kd3 Qd5 36.Ke3 Qe4 37.Ke4 b5-+) 33.Bc3?? (better 33.Qf5 ef5 34.h3=+) 33…Qd3 (33...Qd3 34.g3 b5 35.Bf6 Qe4 36.Kf2 Qf5 37.Ke1 Qf6 38.Ke2 Qf5 39.Ke3 Qg5 40.Kd3 Qd5 41.Ke2 b4 42.d4 Qd4 43.Kf3 b3 44.Kg2 b2 45.g4 Qe4 46.Kh3 Qe3 47.Kg2 b1Q 48.g5 Qbg1) 0–1. yodamo – esteritafelix, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 e6 3.b5 d5 4.Bb2 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.e3)

9.c4 Nbd7 10.d3 0-0 11.Be2 b6 12.0-0 Bb7 13.Nbd2 Qc7 14.h3 h6 15.Qc2 Rd8. de Visser,Arno – Schmidt,G, Biel, 1984.

9.Be2 0-0 10.0-0 c4 11.Qc1 Qa5 12.Qb2 Nbd7 13.Nc3 b6 14.Nd4 Bb7 15.Rb1 Qa8 16.f4 Nc5 17.Qc1 Nfe4 18.Ne4 Ne4 19.Bb2 Bc5 20.Ra1 Qb8 21.Bf3 Qc8 22.Be4 de4 23.Ra4 Bd5 24.Qa1 Qd8 25.Bc3 Qh4 26.g3 Qh3 27.Nc6 Qg4 28.Ne5 Qe2 29.Qf1?? (better 29.Qc1+=) 29...Be3!-+ 30.de3 Qe3 31.Qf2 Qc3 32.Qb6 (32.Ng4-+) 32...e3 (32...Qe1 33.Kg2 Qe2 34.Qf2 e3 35.Nf3 Bf3 36.Kh3 Qf2 37.Rc4 g5 38.fg5 Qg2 39.Kh4 Qh2) 33.Qa5 Qc2 34.Ra2 (34.Qd2 Qb1 35.Qe1 Qe1) 34…Qd1 (34...Qd1 35.Qe1 Qe1) 0-1. bjoernsen (2290) - genius2015 (2160), Rated Blitz game, lichess.org, 2015.

9.Be2 0-0 10.0-0 Nbd7 11.Re1 (11.c4 dc4 12.Bc4 Nb6=) 11...Qc7 12.d3 b6 13.Nc3 (13.Nbd2 Ne8=) 13...e5 14.Bb2 Bb7 15.e4 d4 16.Nb1 Ra8 17.c3 Ra5 18.Qc2 Qb8 (18...Ne8 A) < 19.cd4 cd4 (< 19...ed4 20.Bc1=+) 20.Qb3 Qc5-/+; B) 19.Qb3=+) 19.Na3 (< 19.cd4 cd4 20.Nbd2 Rb5-/+) 19...Qa7 (better is 19...Ne8=) 20.Nc4+/– Rb5 21.Nce5 Ne5 22.Ne5 Qa2 23.Nc4 Qb3 24.Qd2 h6 (24...Nd7!?+/–) 25.Ra1 unclear. Fritz 8 – NN, 2003.

9.Be2 c4 10.0-0 (10.Bd4 Bd6=) 10...Qa5 (10...Bd7 11.Nc3=) 11.Nc3 (11.Bf6 Bf6 12.d3 Qb5 13.dc4 dc4=) 11...Bd7 12.Qb1 0-0 (12...Bb4 13.Ne5=) 13.Qb2 (13.d3 cd3 14.Bd3 Bb4+=) 13...Bb4 14.Rb1 (14.d3 Bc3 (worse 14...Bb5 15.Nb5 Qb5 16.dc4+-) 15.Qc3 Qc3 16.Bc3 Bb5 17.dc4 Bc4 18.Bc4 dc4=) 14...Bc3 (14...Bd6 15.d3 cd3 16.cd3=) 15.Qc3+= (worse 15.dc3 Rc8 16.Qb4 Qb6-/+) 15...Qc3 16.Bc3 (worse 16.dc3 Ne4=+) 16...Ne4 17.Bb4 Rd8 (17...Re8 18.d3 cd3 19.cd3+-) 18.d3 cd3 19.cd3 Nf6 20.h3 (20.d4 Rc8+-) 20...Rc8 21.Bd6 Be8 (21...Ne8 22.Bf4+-) 22.Nd4 Nbd7 (22...Rd8 23.Bh2+-) 23.f4 b6 (23...h6 24.Ra1+-) 24.Ra1 Nc5 25.Ra7 Nfd7? (better 25...h6+-) 26.Nc6+- (26.Nc6 Kh8 27.Ne7+-) 1–0. Janek – Snear, internet, 2018.

10.Qc2 Nbd7 11.Nc3 Nb6 12.Ng5 (12.cd5 ed5 13.Be2 Re8=) 12...h6-/+ 13.h4 dc4 (13...hg5?! 14.hg5 Ne4 15.Ne4 de4 16.Qe4=) 14.Na4 Nbd5 (14...hg5 15.hg5 g6 16.gf6 (16.Bf6?! Bf6 17.Nb6 Bg5 18.Nc8 Bf6+=) 16...Bf6 17.Bf6 Qf6 18.Nb6 Qa1 19.Ke2+-) 15.Bc4 g6 (15...Re8 16.Nf3=+) 16.Nf3 Nb4 17.Qb1 Ne8 18.Ne5 Bf6? (better is 18...Nd6!? 19.Bb3 c4 (19...Bh4? 20.Ng6 Bf2 21.Ke2+-) 20.Nc4 Nb5=) 19.Nc5+/– Qc7 (better is 19...Nd5!?+/–) 20.Qb4+- Be5 21.Be5 (21.b6!? Qd6 22.Be5 Qe5+-) 21...Qe5 22.d4 Qf5 23.Bd3 Qd5 24.Be4 Qa2 25.b6 Nf6 26.0-0 Ne4 27.Ne4 Bd7?? (27...Qc2 28.Nf6 Kg7+-) 1–0. Otte,Marco – Bonnier,Frans, Wag.Intcomp Wageningen, 2002.

10.Qc2 Ne4 11.d3 (better 11.Nc3+=) 11...Qa5=+ 12.Bc3 Nc3 13.Qc3 Qa2 14.Nfd2 (14.Nbd2 Nd7=+) 14...d4 (14...Nd7!?-/+) 15.Qa3=+ (worse 15.ed4 cd4 16.Qb3 Qa5-+) 15...Qa3 16.Na3 e5 17.e4 (17.Be2 Bf5=+) 17...f5 (17...Be6 18.Be2-/+) 18.f3 (18.Be2 Kf7=+) 18...Bg5 (18...f4 19.Kf2-/+) 19.Be2 Bd2 (19...g6 20.Nc2-/+) 20.Kd2=+ b6 (20...fe4 21.de4 Be6 22.Ra1=+) 21.Rf1 (21.ef5 Bf5 22.Ra1 Kf7=) 21...Rf7 22.Nc2 Ra7 23.Ra1 (23.ef5 Bf5 24.g4 Be6=+) 23...Ra1=+ 24.Na1 f4 25.Nb3 (25.Nc2 g5=+) 25...Be6 26.Ke1 g5 27.Nd2 (27.Na1 Kg7=+) 27...Kg7 (27...Nd7 28.Bd1=+) 28.Kf2 (28.Nb3 Nd7=+) 28...Nd7 29.Nf1 (29.Bd1 Nf6=+) 29...Nf6 30.h3 (30.Nd2 Ne8=+) 30...Kg6-/+ 31.Bd1 (31.Nh2 h5-/+) 31...h5 (31...Kf7 32.Nh2-/+) 32.Nh2 (32.Bc2 Bd7-/+) 32...Ne8 (32...Bd7 33.Bc2-/+) 33.Nf1 Nf6 34.Nh2 Ne8 ½–½. Molano Lafuente,Ismael (2005) – Scalzi Evans,Federico (2055), 5th Torneig Classic Internacional Sant Marti, 2016.

10.Nc3 Nbd7 11.Qb3 Nb6=+ 12.d3 Qd6 13.e4 dc4 14.dc4 Qf4 15.Qc2 Nbd7 (15...Bd7 16.Qd2 Qc7 17.Bd3=) 16.Bb2 (16.Bd3 Rd8=) 16...b6 (16...Rd8 17.Be2=) 17.Bd3 Ng4 (17...Bd6 18.Bc1 Qg4 19.0-0=) 18.h3 (18.Ne2!? Qd6 19.e5 Nge5 20.Bh7 Kh8 21.Ne5 Ne5 22.Be4=) 18...Nge5= 19.Ne5 Ne5 20.Be2 Bg5 (20...Rd8 21.Qc1 Qc1 22.Bc1=) 21.0-0+= Ng6 22.g3 Qc7 23.f4 Bh6 (23...Bf6 24.e5 Be7 25.Bf3+=) 24.e5 (24.Rd1 Rd8+=) 24...Ne7 (24...Bb7 25.Ra1+=) 25.g4 (White is in command) 25...f6 26.ef6 Rf6 27.g5+/– Bg5 28.Ne4 Rf4 29.Ng5 Rf1 30.Kf1 Qf4 31.Nf3 Nf5 32.Qd3 Qc7 33.Ne5 Qe7 34.Bg4 Nd6 35.Kg1 Bb7 36.Nc6 Qf8? 37.Be6 Kh8 38.Be5 Ne8 39.Nd8 Qe7 40.Nf7 Kg8 41.Ng5 (41...Qe6 42.Qh7 Kf8 43.Ne6 Ke7 44.Ng7+-) 1–0. Teichmann,Erik (2290) – Gollasch,Theo Heinz, Hamburg HSK–Elo, 1991.

10.Nc3 Nbd7 11.d4 cd4 12.Nd4 dc4 13.Bc4 Nb6 =.

10.Be2 b6 11.d3 Bb7 12.0-0 Nbd7 13.Nbd2 Qc7 14.h3 (14.cd5 Nd5 15.Nc4 Ra8=) 14...Ra8=+ 15.Qc2 h6 16.Rc1 e5 17.cd5 Nd5 18.d4 ed4 19.Bd4 Bf6 (19...cd4 20.Qc7) 20.Qb2 (20.Bf6 N7f6 21.Bc4 Nb4=) 20...Bd4=+ 21.Qd4?? (better is 21.ed4 Re8 22.Bc4=) 21...cd4-+ 22.Rc7 Nc7 (23.Nd4 Ra2-+) 0–1. Sternik,Ryszard – Szymczyk,Marek, Ostroda, 1990.

10.Be2 dc4 11.Bc4 (11.0-0 Qa5 12.Nc3 Nbd7=) 11...b6 12.0-0 Nbd7 13.d4 Bb7 14.Nbd2 Qc7 15.Qc2 cd4 16.Bd4 Rc8 17.Rc1 Ba3 18.Ra1 Bd6 19.Ra7 Qb8 20.Qa2 (20.Ra4!?=+) 20...Bf3-/+ 21.gf3 (21.Nf3?? Rc4! 22.g3 Rc1 23.Kg2 Bf8-+) 21...Bh2 22.Kg2 Be5 23.Be6 (23.Nb3 Qd6 (23...Rc4 24.Ra8 Rc8 25.Rb8 Rb8 26.Be5 Ne5 27.Qa7+-) 24.Bd3 Bd4 25.Nd4 g6-/+) 23...fe6 24.Qe6 Kh8 25.Rd7 Nd7 26.Qd7 Bd4 27.Qd4 Rd8 28.Qb4 Rd5 29.Nb3 (29.f4 Qc8-/+) 29...Qe8-+ 30.Nd4 Qg6 31.Kf1 Qd3 32.Kg2 Rg5 33.Kh2 Rh5 34.Kg2 Qg6 35.Kf1 Rh1 (35...Qb1 36.Qb1 Rh1 37.Kg2 Rb1 38.Kg3-+) 36.Ke2 h5 37.e4 Kh7 38.Qe7 (38.e5 h4 39.Qc4 Qb1-+) 38...Qg1 39.Ne6 Kh6 40.Qb4 (better 40.Qe8 Qf1 41.Ke3 Qc1 42.Kd4 Rd1 43.Ke5 Qc3 44.Kf4-+) 40...Qd1 41.Ke3 Qc1 42.Qd2?? (42.Ke2-+) 42...Qd2 43.Kd2 h4 44.Nd4 (44.Nf4 h3 45.Nh3 Rh3-+) 44...h3 45.f4 (45.Nf5 Kg5 46.f4 Kg4-+) 45...h2 46.Nf3 Rd1!! 47.Kd1 h1Q 48.Ke2 Qb1 49.Ng5 (49.Nd2 Qb5 50.Kd1 Qd3-+) 49…Qb5 (49...Qb5 50.Ke3 Kh5-+) 0–1. DEFFM – GuestJTNW, freechess.org, 2018.

10.Be2 Nbd7 11.0-0 b6 12.d4 Bb7 13.Nbd2 Qc7 14.Qb3 (14.cd5 Nd5 15.Qb1 cd4 16.Bd4 Rc8=) 14...Ra8=+ 15.Bb2 h6 (15...cd4 16.ed4 Qf4 17.Ra1=+) 16.Ra1 Ra1 17.Ba1 cd4 0 18.Bd4 Nc5 (18...e5 19.Bb2=+) 19.Qb2= Nce4 (19...Ncd7 20.Qb3=) 20.Ne4+= de4 21.Ne5 Ne8 22.Qa1 Bf6 (22...Nd6!?+=) 23.Qa7+- Be5 (23...Bc8 24.Qc7 Nc7 25.f4 ef3 26.gf3+-) 24.Be5 Qe5 25.Qb7 Qa1? (better 25...Qc7 26.Qe4 Kf8+-) 26.Bf1+- Qa5 (26...Nf6 27.Qb6 Qb2 28.c5+-) 27.Qe4 (27.c5!? bc5 28.b6 Qb4+-) 27...Nd6 (27...Kf8 28.Qc6+-) 28.Qc6 Nf5 (28...Qd2 29.Qb6 Ne4 30.Qb8 Kh7+-) 29.Qe8 (29.c5 Ne3 30.fe3 Qc3 31.Qe8 Kh7 32.Qf7 Qd2 33.cb6 Qe3 34.Kh1 Qd4 35.Qe6 Kh8 36.b7 Kh7 37.b8Q Qf6 38.Bd3 Qf5 39.Qbg8) 29...Kh7 30.Qf7 Qe1 (30...Qd2 31.Qe6 Nd6+-) 31.Qe6 g6 (31...Qb1 32.Qb6 Nh4 33.Qd8+-) 32.Qb6 Ne3 (32...Qb4+-) 33.Qe3 Qe3 34.fe3 (34.fe3 g5 35.b6 Kg6 36.b7 Kf6 37.b8Q Kf7 38.c5 g4 39.Bc4 Kg7 40.Qc7 Kg6 41.Qf7 Kg5 42.Bd3 Kh4 43.Qf6 Kh5 44.Bg6) 1–0. Janek – Tyzkus, internet, 2017.

10.Be2 Nbd7 11.0-0 Nb6 12.d3 Bd7 (12...Bd6 13.Qc2=) 13.Nbd2 (13.Be5 Ng4+=) 13...Qa8 14.Qc2 (14.Be5 Qa2+=) 14...dc4 (14...Qa4 15.Qa4 Na4 16.Be5+=) 15.dc4+/– Qa4 16.Nb3 Ra8 17.Bb2 Qa7 (17...Ng4 18.Ra1 Qb4 19.Ra8 Na8 20.Nfd2+/–) 18.Ng5 h6 (18...g6 19.Nc5! Bc5 20.Bf6+-) 19.Ra1 (19.Bf6!? Bf6 20.Qh7 Kf8+-) 19...Qb8 (19...Na4 20.Ne4 Ne4 21.Qe4+/–) 20.Ra8 Qa8 21.Bf6 Bf6 22.Ne4 Be7 23.Nec5 Be8 (23...Qc8 24.Nd7 Nd7 25.Qe4+/–) 24.Ne4 Qa3 25.g3 (25.Ned2 Nd7+/–) 25...Na4 (25...Nd7 26.Bf3+/–) 26.Nc3 b6 27.Na4 Qa4 28.Nd4 Qc2 29.Nc2 e5 30.Bf3 Bd7 31.Bd5 Kf8 32.e4 f5 33.f3 fe4 34.fe4 Bc5 35.Kg2 Bg4 36.h3 Bd1 37.Ne1 Ke7 38.Nd3 Bd4 39.Kf1 Kd6 40.Ke1 Bf3+= 41.Kd2 g5 42.Ne1 Bh5 43.g4+/– Bg6 44.Nf3 Bf2 45.Ke2 Bg3 46.Nd2 h5 47.Kf3 Bf4 48.Nb3 Be8 49.Kg2 Be3+/– 50.Kf3 hg4?? 51.hg4 Bd4+/– 52.Kg3 Bd7 53.Kf3 Ke7 54.Kg3 Kf6?? 55.c5!+- Bb5? 56.Nd4 ed4 57.cb6 Ba6 58.b7 Bb7 59.Bb7 (59.Bb7 Ke5 60.Kf3+-) 1–0. Kleinke – Pamperin, Schwerin, 1979.

10.c4 dc4 11.Bc4= Qc7 12.f4 Nbd7 13.Nd7 (13.0-0 Nb6=) 13...Nd7 14.Nc3 (14.0-0 Nb6 15.Bd3 Qd7=) 14...b6 (14...Nb6 15.Bd3=+) 15.0-0 (15.Ne4 Bb7 16.Qg4 e5=) 15...Bb7 16.g4 (16.d3 Bf6=) 16...Nf6 17.Qe2 (17.g5 Nd7=+) 17...Ne4 (17...Ra8 18.g5 Ne8 19.Qh5=+) 18.Ne4= Be4 19.d3 Bb7 20.e4 (20.Bc3 Qd7=) 20...Ra8 21.g5 (21.Bc3 Bd6 22.f5 Bc8=) 21...Bc8 (21...Ra1 22.Ra1 Qf4 23.Qg2=+) 22.Qh5 Qd8 23.h4?? (better is 23.Bb2 Ra4 24.Rf3=) 23…Ra1!-+ (24.Ra1 Qd4 25.Kg2 Qb2 26.Kf1 Qa1 27.Kf2 Qb2 28.Qe2 Qc1-+) 0–1. Petersen – Troc, corr 3GMM–07, 1996.

10.c4 Nbd7 11.Nd7 Bd7 12.Be5 =+.

10.c4 Nbd7 11.f4 Bd6 (11...Nb6 12.d3=) 12.Be2= Qc7 13.Nd7 Bd7 (13...Nd7 14.0-0=) 14.0-0 (14.Bf6 gf6 15.cd5 ed5+/–) 14...dc4 (14...d4!?+=) 15.Bc4 (15.Bf6 gf6 16.Bc4 Kh8+=) 15...Nd5 16.Qh5 (16.Qg4 g6+=) 16...Nb6 17.Bg7 Kg7 (17...Nc4?? 18.Bf6 Ne5 19.Qh6 Nf3 20.Rf3 Bb5 21.Qg7) 18.Qg5 Kh8 19.Qf6 Kg8 20.Rf3 (20.Rf3 Ra8 21.Qh6+-) 1–0. Brauer – Erler, corr, 1976.

10.Be2 Nbd7 =.

9.Nf3 Qa5 10.Nc3 Bc5 11.Qb1 Bd7 12.Be2 Ne4 (12...0-0!?=+) 13.Ne4 de4 14.Ng5 Qb5 15.Qb5 Bb5 16.Ne4 Be7 17.Bg7 Rg8 18.Bf6 Bc6 19.Be7 Be4 20.Bd6 Rg2 (20...Bg2? 21.Rg1 (21.Bb8 Bh1 22.Bc4 Rg1 23.Ke2 Be4-/+) 21...Nc6 22.Kf2+- (22.Bc4?! Kd7+-)) 21.Bc4 Nd7 22.Bd3 Bc6 23.h4 (< 23.Bh7 Rg7 24.Rf1 Rh7-/+) 23...h5 24.Bf1 Rg4 25.Rh2 Nf6 26.d3 Kd7 27.Be5 Nd5 28.Kf2 Nb4 (28...f6 29.Bb2 Rg6 30.Be2+-) 29.Be2 Rg8 30.c3 Nd5 31.e4 Ne7 32.Bh5 f5 33.Bf3 fe4 34.de4 Ng6 35.Rg2 Ne7 36.h5 Rg2 37.Bg2 Ke8 (37...Ng8+-) 38.h6 Kf7 39.h7 (39...Ng6 40.f5 ef5 41.ef5 Ne5 42.h8Q Ng4 43.Kg3+-) 1–0. Althoff,Guntram (2145) – Navarro Coloma,Antonio (2025), Mislata op–B, 2003.

9.Nf3 Bd7 10.Nc3 Qa5 A) 11.Be2 Bb5 (11...Bb4 12.0-0 0-0 13.Qe1 Ne8 14.Nd4 Nd6 15.Qg3 Re8 16.f5 e5=) 12.Nb5 Qb5 13.Bf6 gf6 14.0-0 Nc6 15.Qa1 Be7 16.Rb1 Qa5=+; B) 11.Qb1 Bb4 (11...Bc5 12.Be2 0-0 13.Qb2 Bb4 14.Nd4 Bc5 15.Nf3 Bb4 16.Nd4 Bc5=; 11...Qb4 12.Qb2 Qb2 13.Bb2 Bb4 14.Nd4 h5 15.Be2 h4 16.0-0 Ke7=; 11...Bd6 12.Be2 0-0 13.0-0 Bb4 14.Qe1 Ne8 15.Nd4 Nd6 16.Qg3 Re8=) 12.Na2 Bd6 13.Nc3 Bb4 14.Na2 Bd6 15.Nc3 Bb4 16.Na2 Bc5=.

9.Nf3 Bd7 10.Nc3 Bb4 11.Qb1 (11.Nd4 Qa5 (11...0-0 12.Be2 Bc5 13.Nf3 Ne4 14.Ne4 de4 15.Ng5 Bb5 16.Ne4 Be7=; 11...Bc5 12.Nf3 0-0 13.Be2 Ne4 14.Ne4 de4 15.Ng5 Bb5 16.Ne4 Be7=; 11...Bc3 12.Bc3 Ne4 13.Qg4 Qf6 14.Ne2 Nc3 15.Nc3 Qh6 16.Be2 0-0=) 12.Qb1 Bc5 13.Nf3 Bb4 14.Nd4 Bc5 15.Nf3 0-0 16.Be2 Ne8=+; 11.Be2 Bc3 (11...Qa5 12.0-0 0-0 13.Qe1 Ne8 14.Nd4 Nd6 15.Qg3 Re8 16.f5 e5=) 12.Bc3 Bb5 13.0-0 0-0 14.f5 Ne4 15.Bb4 Re8 16.fe6 fe6=+) 11...Bc3 (11...Qa5 12.Na2 Bc5 (12...Bd6 13.b6 Bc5 14.Bd4 Bd4 15.Nd4 Ne4 16.c3 Nc6-/+) 13.Bf6 (13.Nc3 Bb4 14.Na2 Bc5 15.Bf6 gf6 16.Kf2 Qb5-/+) 13...gf6 14.Kf2-/+ (14.Qa1 Rg8 15.Nd4 Bb5 16.Nb5 Qb5-/+) 14...Bb5 15.Be2 Nd7 16.Qb2 Ba6-/+; 11...Qe7 12.Be2 0-0 13.0-0 Rd8 14.Nd4 Bc5 15.Na4 Bd4 16.Bd4 Ne4=; 11...Bc5 12.Be2 0-0 13.0-0 Qe7 14.Qe1 Bb4 15.Qg3 Nh5 16.Qg5 Nf6+=; 11...Bd6 12.Be2 Qb6 13.Ne5 0-0 14.0-0 Be8 15.Bf3 Nbd7 16.Ne2 Nc5=) 12.Bc3+= Qb6 13.Qb2 Qb5 (13...Bb5? 14.Bf6 gf6 15.Nd4+- (15.Qf6?! Rf8+=)) 14.Bf6 gf6 15.Qf6 Qb1 16.Kf2 Rf8 17.Rg1 (17.Qc3!? Ba4 18.d3=) 17...Qc2=+ 18.Be2 Qg6 19.Qb2 b5 (19...Bc6 20.Ne5 Qf6 21.Ra1=) 20.Ra1 Qg8 (better 20...Rg8 21.g3 Nc6=) 21.Ra8 Ke7 22.Ra7?? (22.Ne5 Qh8 23.Qb4 Kf6 24.Bh5+-) 22...Nc6= 23.Rd7? (23.Rb7!? Rb8 24.Rb5 Rb5 25.Qb5=) 23...Kd7-/+ 24.Qb5 Kd6 25.e4 (better 25.Ne5!? Rc8 26.Bd1=+) 25...Rb8-+ (25...de4 26.Ne5 Rc8 27.Nc4 Kc7 28.Qb6 Kd7 29.Ne5 Kd6 30.Bb5+-) 26.Qa6 Qc8 27.Qa3 Kd7 (27...Nb4!?-+) 28.ed5-/+ ed5 29.Ng5 (29.d3 Qc7 30.dc4 dc4-/+) 29...Qf8 (29...f5 30.Qc5 Ne7 31.Qd4-/+) 30.Qh3-/+ Kc7 (30...f5 31.Qh7 Ne7 32.Nf3-/+) 31.Qh7 (31.Qf5!? Qc5 32.Kf1=+) 31...Qc5-/+ 32.Kg3 Rb3 (32...Qe7 33.Bf3 f6 34.Qe7 Ne7 35.Nh7-+) 33.Bf3=+ Qe7 34.Kg4 (34.Qf7!? Qf7 35.Nf7-/+) 34...Rd3 35.h4 (better 35.Qf7!? Qf7 36.Nf7 Rd2 37.h4-+) 35...Rd2 36.h5 c3 37.Qb1 Qb4 (better 37...c2 38.Qa1 Qe3-+) 38.Qb4 Nb4 39.h6 Ra2 40.Bd1? (40.h7 Ra8 41.Bd1-+) 40...c2 (better 40...Rg2 41.Kf5 Rh2-+) 41.Bc2= Nc2 (41...Rc2? 42.h7 Rg2 43.Kh4+-) 42.h7 Ra8 43.Nf7 d4 44.Kf3 (44.g3 Ne1 45.Ne5 Rh8-+) 44...d3 (44...Ne1 45.Kf2 Nd3 46.Kf3 Ne1 47.Kf2 Nd3 48.Kg3 Nb2-+) 45.g4+- Re8 (45...Ne1 46.Kf2 Ng2 47.h8Q (47.Kg2?? d2 48.h8Q Rh8 49.Nh8 d1Q-+) 47...Rh8 48.Nh8 Nf4 49.Ke3=) 46.h8Q Rh8 47.Nh8 Kd7 48.Ng6 Ke6 49.Ne5 Ne1 50.Ke3 (50.Kf2 d2 51.Ke2 Ng2=) 50...Ng2 51.Kd3 ½–½. Boe,AH – Snahre,Stig Allan, Norwegian Open, Oslo NOR (8), 2002.

8.c4 Bb6 9.Nf3 dc4 10.Be2 0-0 11.Bc4 Nbd7 12.Be2 Nc5 (12...Bc5 13.0-0=) 13.0-0+= Bd7 14.d4 Nce4 15.Nbd2 Nc3?? Attacking the isolated pawn on b5 (better 15...Nd6 16.Qb1 Qe8+=) 16.Bc3+- Nd5 17.Bb2 Be8 (17...c6 18.bc6 Bc6 19.Qc2+-) 18.Qb3 Qe7 (18...Bd7 19.Nc4+-) 19.Ba3 Qf6 20.Bf8 Kf8 21.Ne5 (21.Nc4 Qd8+-) 21...Kg8 (21...Qe7 22.Ra1+-) 22.Ne4 (better 22.Ra1 Qd8+-) 22...Qf5 (22...Qh4 23.Qa3 Qd8 24.Ra1+-) 23.Ng3 (better 23.g4 Qe4 24.Bd3 Qd3 25.Nd3 Nf6+-) 23...Qf6 24.Ra1 h5 (24...Qd8 25.Nc4+-) 25.Nh5 (25.Ra8 Qe7 26.Bh5 g6 27.Ng6 fg6 28.Bg6 Kg7 29.Re8 Qd6+-) 25...Qg5 (25...Qd8 26.Bf3+-) 26.Ng3 (26.Ra8 Qe7+-) 26...f6 (26...Qd8 27.Bf3+-) 27.Nf3 Qg6 28.Bd3 Qf7 29.Ra8 Qe7 (29...g5 30.Rb8+-) 30.Bc4 (better 30.Bg6! Kf8 31.Qa3 c5 32.bc6 Nc7 33.cb7 Qa3 34.Ra3 Na6 35.Ra6 Bc7+-) 30...Kf7 (30...Qf7 31.Ne2 Kh7 32.e4+-) 31.e4 (better 31.Bd5 ed5 32.Qd5 Kf8+-) 31...Nf4 32.Qe3 White intends e5 32...Ng6 33.e5 f5 (33...Ne5 34.Ne5 fe5 35.Qf3 Qf6 36.Qh5 Qg6 37.Be6 Ke7 38.Re8 Qe8 39.Nf5 Ke6 40.Ng7 Kd5 41.Ne8 Kd4+-) 34.Ng5 Kf8 35.Ne6 Kf7 36.Nc7 (36.Ng5 Kf8 37.Nh7) 36...Kf8+- 37.Re8 (37.Qg5 Ne5 38.de5 Qd7 39.Qf5 Ke7 40.Qg5 Kf8 41.Qf4 Ke7 42.Qh4 g5 43.Qg5 Kf8 44.Qf6 Qf7 45.Qf7) 37...Qe8 38.Ne8 Ke8 39.Nf5 (39.Nf5 Nf4 40.Nd6 Kd7 41.Qf4 Bd4 42.Qf7 Kd8 43.Be6 Bf2 44.Kf2 g5 45.Nb7) 1-0. BeepBeepImAJeep (2680) - KindOfSick (1945), lichess.org, 2016.

8.c4 dc4 9.Bc4 0-0 10.Nf3 Bb4 11.0-0 Ne4 (11...Nbd7!?=) 12.Qc2+- Nd6 13.Bd3 Bd7? The isolani on b5 becomes a target (13...f5!?+=) 14.Bh7 (14.Qb2 Qf6 15.Ne5 Bb5 16.Bb5 Nb5 17.Qb4 Nd6+-) 14...Kh8+- 15.Qb2 Bd2?? (better 15...f6 16.Bg6 c5 17.bc6 Nc6+-) 16.Qg7 (16.Qd2?! Kh7 17.b6 Ne8+-; 16.Nbd2 f6 17.Bd3 Kg8+-) 1–0. GuestTVJC – BigggMan, freechess.org, 2017.

8.d4 Bb4 9.Bc3 Bd6 10.Nf3 c6 11.Nbd2 0-0 12.Qb1 Qb6 13.Bd3 Bd7 14.0-0 cb5 15.Ne5 (15.Bb4!?=) 15...b4+= 16.Bb2 Rc8 17.Nd7 Nbd7 18.Nb3 Qc7 19.g3 Ne4 20.Qd1 Ra8 21.Qf3 f5 22.Be4 (22.Ra1 Ra1 23.Ba1 Ndf6-/+) 22...fe4-+ 23.Qe2 Rf8 24.Rc1 Nb6 25.Ra1 Qc6 26.Na5 Qc8 27.Nb3 Nc4 28.Bc1 Na3 29.Ra2 Qc6 30.Kf1 Nb5 31.Bd2 b6 32.Ke1 Rf3 33.Ra8? Qa8 34.Qb5 Qf8 35.Qe2 Qf5 36.Kf1 Qh5 37.Qb5 Rf2! 38.Ke1 Rh2 (38...Rh2 39.Qe8 Qe8 40.Na5 Rh1 41.Kf2 Qf7 42.Ke2 Qf3#) 0–1. Baer,Cy (1895) – Buchmann,Hans_Peter (2250), RSS4D easy–41, 2007.

8.Be2 c4 9.Nf3 Bb4 10.Bc3 Bc5 11.d3 cd3 12.cd3 b6 13.Qa4 Nbd7 14.Qa7 Nf8 (14...0-0 15.0-0=) 15.Ne5+= N8d7?? (better is 15...Qe7 16.Qe7 Be7+=) 16.Nc6+- 0-0 17.Nd8 Rd8 18.0-0 h6 (18...e5 19.d4 ed4 20.Bd4 Bd4 21.ed4+-) 19.Bf6 Nf6 20.d4 Bd6 21.Rc1 Bd7 22.Qb6 Be7 23.Qa6 Bb4 (23...Ne4 24.Bd3 Nd6 25.b6+-) 24.b6 Bd6 (24...Kf8 25.b7 Ke7 26.Qa7+-) 25.b7 Rb8 26.Bb5 (better is 26.Qd6 Rb7 27.Qe7 Bc6 28.Qd8 Be8+-) 26...Be8 (26...Bb5 27.Qb5 Kh7 28.Qd3 g6 29.Qa6+-) 27.Rc8 g5 28.Be8 Ne8 29.Qd6 1–0. michaelbuss – Sirprocyon, ChessWorld.net, 2016.

8.Nf3 c6 9.c4 cb5 (9...0-0 10.Nc3=) 10.cb5 (10.cd5 ed5 11.Bb5 Nc6 12.Qc2+=) 10...Ne4 (better 10...Nbd7!?=+) 11.Bg7+- Rg8 12.Bb2 f5 (12...Nd7 13.Nc3+-) 13.g3 Ng5 (13...Nd7!?+-) 14.Ng5+- Qg5 15.Be2 Nd7 16.Bh5 (16.Nc3!? Bd6+-) 16...Ke7+- 17.0-0 b6 (17...Nb6 18.Be2+-) 18.Nc3+- Bb7 19.Na4 Qh4 20.Nc5 bc5 21.Ba3 (21.d4 c4+-) 21...Qh3? (better 21...d4!? 22.Bf3 Bf3 23.Qf3 de3 24.Qe3 Qc4+-) 22.d4+- e5?? (22...Rc8+-) 23.dc5 f4 (23...Ke6 24.c6 Nf6 25.cb7 Qh5+-) 24.c6 Kf6 (24...Ke6 25.e4 Bc6 26.bc6+-) 25.Qd5 (better 25.cb7 Qe6 26.ef4+-) 25...Rg3 (25...Qe6 26.Qd7 Qd7 27.cd7 Rd8+-) 26.fg3 Kg5 27.ef4 Kh5 (27...Kh6 28.Qd7 Qh2 29.Kh2 ef4 30.Bf8 Kg5 31.Rf4 Kh5 32.Qf5) 28.Qf7 (28.cd7 Bd5 29.Rf2 Qd7 30.fe5 Qg4-+) 28...Kg4 (28...Kh6 29.Bc1 Qf5 30.fe5 Qg5 31.Rf6 Nf6 32.Qf6 Kh5 33.Qg5) 29.Qd7 (29.Qd7 Kh5 30.Qh7 Kg4 31.Qg6) 1–0. DEFFM – GuestXJWP, freechess.org, 2019.

8.Nf3 Nbd7 9.Be2 (9.d4 Bd6=) 9...c6 (9...Bd6 10.Nd4=+) 10.c4 Nb6 (10...dc4 11.Bc4 Bd6 12.bc6 bc6 13.d4=) 11.bc6 bc6 12.cd5 cd5 13.Qc2 Be7 14.0-0 0-0 15.Bd3 (15.Bf6 Bf6 16.d4 Qd6=) 15...e5? (better 15...Nbd7!?=) 16.Be5 (16.Be5 Bd6 17.Bd4+-) 1–0. DEFFM – GuestRNDM, freechess.org, 2019.

9.Nf3 Nbd7 10.Be2 Nb6 11.cd5 Nfd5 12.Kf1 (12.0-0!?=) 12...Bd7 (12...Bd6 13.Kg1=+) 13.Nc3 Nc3 (13...Qe7=+) 14.dc3 (14.Bc3 Bd6=+) 14...Qe8 (better 14...Bb5!? 15.Qb1 Bc4-+) 15.c4= Qe7 (15...f6 16.Bd4 Qe7 17.Bc5 Qc5 18.Qd4=+) 16.h4 (16.Bd3 c6=) 16...Rd8 (16...f6 17.Bd3=+) 17.Qc2 e5 (17...Ra8!? 18.Bc3 Na4=+) 18.Be5 Bg4 (18...c6 19.h5+=) 19.Bb2 h6 (19...Qe6 20.Bd3+=) 20.Qc3 (20.Kg1 Qe6+=) 20...f6 21.Qc2 Qd7 (21...Qf7 22.Kg1+=) 22.Nd4 (22.h5 Bf5 23.Qb3 Bg4+=) 22...Be2= 23.Qe2 (23.Ke2 Ra8=) 23...Qf7=+ (worse 23...Bd4 24.Bd4 (worse 24.ed4 Re8 25.Qd3 Qe6=+) 24...Qe6 25.Bb6 cb6 26.g3+=) 24.g4 (24.h5 Nc4 25.Rh4 Nb2 26.Qb2 Bd4 27.ed4 Qc4 28.Kg1 Rd5-/+) 24...Qc4 (24...Nc4 25.Kg2 Bd4 26.Bd4 Qd5 27.f3 Ra8-/+ (27...Qb5?! 28.Rc1 Nd6 29.Qa2 Kh8 30.Rc7=)) 25.Qc4=+ Nc4 26.Bc3 (26.Ne6 Rd1 27.Kg2 Rh1 (worse 27...Nb2 28.Rd1 Nd1 29.Nc5+=) 28.Kh1 Be3 (worse 28...Nb2 29.Nc5 c6 30.b6=) 29.fe3 Nb2 30.Nc7 Nd1=+) 26...Bd4-/+ 27.ed4 (27.Bd4 b6-/+) 27...b6 28.Kg2 (28.Ke2 Na3 29.Kd3 Nb5-/+) 28...Na3 29.Re1 (better 29.Rc1!?-/+) 29...Nb5-+ 30.Bb2 (30.Rc1 Nc3 31.Rc3 Rd4 32.Rc7 Rg4 33.Kh3 h5-+) 30...Nd4 31.Re7 c5 32.Rb7 Rd6 33.Rb8 (33.h5 Ne6-+) 33...Kf7 (33...Kh7 34.h5-+) 34.Rb7 Kg6 35.f4 (35.h5 Kh7-+) 35...h5 (35...f5 36.g5-+) 36.f5 Kh7 37.g5? (37.Kg3-+) 37...fg5 (37...Nf5?! 38.gf6 Nh4 39.Kg3 Nf5 40.Kf4-+) 38.hg5 (38.Bd4 cd4 39.hg5 Rd5-+) 38...Nf5 39.Kh3 (39.Be5 Rc6 40.Kf3-+) 39…Rd3 (39...Rd3 40.Kg2 Rd2 41.Kg1 Rb2-+) 0–1. GuestBXSQ – GuestSMVL, freechess.org, 2016.

9.Nf3 Nbd7 10.Be2 dc4 11.Bc4 Nb6 12.Be2 Bd6 13.0-0 Qe7 14.d4 Bd7 15.Nc3 Ra8 16.Bb2 Ba3 (16...Nbd5 17.Ne5=) 17.Qb3 (17.Ba3 Ra3 18.Qc2 c6+=) 17...Bb2 (17...Qb4 18.Qb4 Bb4 19.Ne5=) 18.Qb2+= Qa3 19.Qc2 c5 20.bc6 (20.Ne4 Ne4 21.Qe4 cd4 22.Nd4 Nd5+=) 20...Bc6= 21.Ne5 Nbd5 (21...Rc8 A) 22.Nc6? Rc6 23.Qb1 Qc3-+ (worse 23...Rc3 24.Qb6 Rb3 25.Qc7+=); B) 22.Qb1=) 22.Nd5+= (22.Nc6? Qc3 (worse 22...bc6 23.Rc1=; 22...Nc3?! 23.Ne5=) 23.Ne7 Kf8-+) 22...Bd5 23.h3 (23.Bd3 Qa4+=) 23...Qa2 (23...Qe7 24.Bd3 Ra2 25.Qb1+/-) 24.Qa2 Ra2 (24...Ba2 25.Rc1 Ne8 26.Nd7+=) 25.Rc1+/- g6 (25...Ra8 26.Rc7+/-) 26.Rc8 Kg7 27.Bd3 Ra1 28.Kh2 Ra2 29.f3 Ng8 30.Rc7 Nh6 31.e4 Bc6 32.Nc6 (32.Bc4!? Rd2 33.Be6 Be8+-) 32...bc6+/- 33.Bc4 Rd2 34.Be6 (34.Rc6?! Rd4 35.g4 Ng8+=) 34...Rd4 35.Kg3 g5 36.h4 (36.Bd7 Rd2+/-) 36...gh4 37.Kh4 Kf6 (37...Rd3 38.e5+/-) 38.Bb3 Nf5 39.Kh3 Ne7? (better 39...Nh6+-) 40.e5! (40.e5 Ke5 41.Re7 Kd6 42.Rf7+-) 1-0. Timmermans,M (2385) - Deepan,C (2535), Titled Tuesday (10), 2020.

9.Nf3 Nbd7 10.Be2 Bd6 11.cd5 ed5 12.0-0=.

9.Nf3 cb5 10.cb5 Bd7 11.Be2 0-0 12.Nc3 Ne4 13.0-0 (13.Qc2 Qa5 14.0-0 Nc3 15.Bc3 Qb6+=) 13...Nc3 14.Bc3 b6 15.h3 f6 16.Qb3 Bc8 (16...Qc7 17.Rc1+=) 17.Ra1 e5 (17...Bd6 18.d4+=) 18.d4+/- ed4 19.Nd4 Bd7 (19...Qd6!?+/-) 20.Bf3 (20.Qd5 Kh8+-) 20...Qc8 21.Bd5 Kh8 22.Ne6 Re8 23.Nc5 bc5 24.e4 Bh3? (better 24...Be6+-) 25.gh3 Qh3 26.Ra7 (better 26.Bd2!? Qb3 27.Bb3 Nd7+-) 26...Qg4 27.Kf1 Qh3 28.Ke2 Qg4 29.f3 (better 29.Ke3!? Qh3 30.f3 Qh6 31.Ke2 Qh2 32.Kd1+-) 29...Qg2+/- 30.Ke3 Qg1 31.Kd2 Qf2 32.Kc1 Qf3 (32...c4 33.Qa4 Qf3 34.Bd4 Qf4 35.Kc2+-) 33.Kb2 (33.Be1 Qf4 34.Kc2 Qh2 35.Bd2 Qg2+-) 33...Qe2 34.Ka3 h5 (34...Qf1 35.Rf7 h6 36.e5 Qc1 37.Bb2+-) 35.Qc4 Qg4? (35...Qe3 36.Rc7 Qc1 37.Ka4+-) 36.b6 (36.Qc5 h4 37.Qd6 Qg3 38.Qg3 hg3+-) 36...h4? (better 36...Nd7 37.b7 Qg5+-) 37.Bf7 (worse 37.Qc5 Rc8 38.Rc7 Rd8+-) 37...Rd8 38.Be6 (better 38.Qc5 Kh7 39.Qc7 Rd3+-) 38...Qf3?? (38...Qf4 39.Qc5 Qd6 40.Qd6 Rd6 41.Rb7+-) 39.Bf5 (39.Qc5 Re8 40.Qc7 Qg3+-) 39...h3 40.Kb3 (40.e5 Qf5 41.ef6 gf6 42.Qf7+-) 40...h2?? (better 40...Nc6 41.Qc5 Qd1 42.Kb2 Na7-/+) 41.Qf7+/- h1Q?? (41...c4 42.Ka4 Qd1 43.Kb5 Nd7 44.Rd7 Qd7 45.Bd7 h1Q 46.Bf6 Rg8+-) 42.Qg7 1-0. KLINGON09 (1815) - Slava123 (1825), lichess.org, 2019.

9.Nf3 h6 10.Be2 0-0 11.Qa4 Bd7 12.0-0 cb5 (12...Bd6 13.Be5 Be5 14.Ne5 dc4 15.Bc4 (15.Nc4? cb5 16.Qb3 bc4 17.Qb7 Bc6-+) 15...cb5 16.Bb5 Bb5 17.Qb5=) 13.cb5+= Re8 (13...Ne4 14.Rc1 Qb6 15.Nc3+=) 14.Be5+/- Bb6 15.Qa8 Bc7 (15...Ng4!?+/-) 16.Qb7 Be5 17.Ne5 Qc8 18.Qa7 Nh7 (18...Ne4 19.b6+-) 19.Nc3 f6 20.Nd3 Rf8 21.Rc1 Qe8 22.Nc5 Rf7? (22...Qf7+-) 23.Bh5 Bb5 (23...Ng5 24.b6 Kh7 25.Bf7 Nf7+-) 24.Bf7 Qf7 25.Qb8 Be8 26.Nb5 1-0. pereira – bureau, internet, 2021.

9.c4 dc4 10.Bc4 c6 11.Nc3 cb5 12.Nb5 Nc6 13.0-0 h6 14.d4 Be7 15.Bb2 Nd5 (15...Bd7 16.Ne5+=) 16.e4 Nf6 (16...Na5 A) worse 17.ed5 Nc4 18.de6 Be6=+ (worse 18...Nb2 19.ef7 Rf7 20.Qb3+/-); B) 17.Be2 Nf4 18.g3 Ne2 19.Qe2+=) 17.Qe2+/- Re8 18.Ra1 Bd7 (18...b6 19.h3+/-) 19.Ne5 Ne5 20.de5 Nh7 21.Nd6 Bd6 (21...Rf8!? 22.Qe3+/-) 22.ed6 Bc6 23.e5 Qg5 24.g3 Nf8 25.Bd3 Ng6 26.Kf1 Nf4? (better 26...Rc8+-) 27.gf4 Qg2 (27...Qf4 28.h3+-) 28.Ke1 Bf3 (28...Qh2 29.Qg4+-) 29.Qe3 Rc8 (29...Bc6+-) 30.d7 Rd8 31.Qb6 Rd7 32.Ra8 (32.Ra8 Rd8 33.Rd8) 1-0. DEFFM – GuestTSQV, freechess.org, 2020.

9.c4 Nbd7 10.d4 Bb4 11.Nbd2 (11.Bc3 Bc3 (11...Bd6 12.c5 Be7 13.Bd3 Re8 14.0-0 Ne4 15.Qc2 f5 16.Bb2 Ndf6+=; 11...Be7 12.c5 Ne4 13.Bd3 Ndf6 14.0-0 Re8 15.Ne5 Nd7 16.Nd7 Qd7+=) 12.Nc3 c5 13.bc6 bc6 14.Qa1 c5 15.cd5 Nd5 16.Nd5 ed5=) 11...c5 (11...c6 12.cd5 cd5 13.Bd3 b6 14.0-0 Bb7 15.Qb3 Qe7 16.Bc3 Bd6=; 11...Ne4 12.Bd3 Nb6 13.c5 Nd2 14.Nd2 Nc4 15.Bc4 dc4 16.Qc2 b6=) 12.bc6 (12.cd5 Nd5 13.Bd3 b6 14.0-0 Bb7 15.Qc2 f5 16.Rd1 Qe7=) 12...bc6 13.Bd3 Ne4 (13...dc4 14.Bc4 c5 15.Qc2 cd4 16.Bd4 e5=) 14.0-0 f5 (14...Ndf6 15.Be4 de4 16.Ne5 c5=) 15.Qc2 Ndf6 (15...Bd2 16.Nd2 Ba6+=) 16.Bb2 (16.Rb1 Qe7=) 16...Qc7 17.Nb3 Ba6 18.Ne5 Qb7 19.Ra1 Ng4 20.Ra6 Qa6? (better is 20...Ne5!? 21.de5 Qa6 22.cd5 Qa7 23.de6 Be1+=) 21.cd5+/– Qa4 22.de6 (22.Ng4 cd5 23.Be4 fe4 24.Na1+=) 22...Ne5 23.de5 Be7 (23...Rb8 24.Qc4 Qb5 25.e7 Qc4 26.Bc4 Kh8+-) 24.Nd4+/– Qc2 25.Bc2 (worse is 25.Nc2 Rb8 26.Be4 fe4-/+) 25...Rb8 26.Nf5 (26.Nc6? Rb2 27.Ne7 Kf8-+) 26...Rb2 27.Be4 Kf8 ½–½. pvanr (1760) – bobinac (1980), gameknot.com, 2009.

9.c4 Nbd7 10.d4 Be7 A) 11.c5 c6 (11...Ne4 12.Bd3 Ndf6 13.0-0 b6 14.c6 Bd6 15.Ne5 Ng5 16.f3 h6+/–; 11...Ng4 12.Nc3 Ndf6 13.Bd3 b6 14.c6 Nh6 15.0-0 Nf5 16.Ne5 Bd6+/–) 12.Nc3 e5 13.Be2 e4 14.Nd2 cb5 15.Bb5 b6 16.c6 Nb8=; B) 11.Qc2 dc4 (11...c6 12.bc6 bc6 13.Bd3 Ba6 14.Nbd2 Nb6 15.Ne5 dc4 16.Ndc4 Nc4=; 11...Kh8 12.c5 c6 13.b6 Ne4 14.Bd3 f5 15.0-0 Bf6 16.Nc3 e5+=) 12.Bc4 Nb6 13.Be2 Qd6 14.e4 Qf4 15.Bd3 h6 16.Ne5 Bd6=.

9.d4 Bb4 10.Bc3 Bd6 =.

9.d4 Bb4 10.Nbd2 Ne4 (10...c6 11.Ne5+=) 11.Bd3 Nd2 12.Nd2 Bd7 (12...c6 13.0-0=) 13.c3 (13.0-0 Qe8 14.c3 Bd6+=) 13...Ba5 (13...Bd6 14.Qh5 g6 15.Qf3+=) 14.0-0+= c6 15.bc6 bc6 (15...Bc6 16.Qh5 f5 17.Rb1+=) 16.Nf3 (16.c4 Qh4+=) 16...Bb6 (16...c5 17.Qc2 cd4 18.Bh7 Kh8 19.Bd3 (worse is 19.Nd4 f5+=) 19...de3 20.fe3+=) 17.c4 (17.Qc2 f5+/–) 17...dc4+= 18.Bc4 c5 19.d5 ed5 20.Qd5 (worse is 20.Bd5 Bb5+=) 20...Bg4?? (better is 20...Be6 21.Qe5 Qf6+-) 21.Qe5+- Bf3 (21...Qf6 22.Qg3 Qf5+-) 22.Qg7 (22.gf3?! Qf6 23.Qf6 gf6 24.Bf6 Nd7+/–) 1–0. pcmvr (2225) – smungiu (2085), net–chess.com, 2006.

9.d4 Bd6 10.Bd3 +=.

9.Be2 Nbd7 10.0-0 Bb4 (10...Bd6 11.d4=) 11.Bb2 Qe7 12.d4 Nb6 13.c3 Bd6 14.Nbd2 (14.Qb3 Ne4=) 14...Bd7 15.Qc2 c6 16.bc6 Bc6 17.Ra1 Qc7 (17...Rc8 18.Qb3 Qd8 19.Ba3=) 18.Bd3 (18.Ba3 Ra8 19.Qc1 Nc8=) 18...Nc4 (18...Ra8 19.Ra8 Na8 20.c4=) 19.Bc4 (worse is 19.Nc4 dc4 20.Be2 Be4+=) 19...dc4 20.Nc4 (20.e4 Bf4=) 20...Bf3 21.Nd6 Bg2 22.Kg2 (22.Ba3 Bc6 23.c4 Ra8=) 22...Qd6 23.f3 Nd5 24.Bc1 (24.Kg1 Rc8 25.Qe2 Qb6= (25...Nc3? 26.Bc3 Qd8 27.Bb2+-)) 24...Qc7 (24...Qc6 25.c4=) 25.c4 b5 26.c5 f5 27.Qb3 b4 28.Bd2 Qf7 29.Qd3 Rb8 30.h3 b3 31.Rb1 b2 32.Qc2 Qg6 33.Kf2 f4 34.Qg6 fe3 35.Be3 hg6 36.Bd2 Rb3 37.Ke1 Ne7 38.Bf4 Nc6 39.Be5 Rb5 40.f4 g5+= 41.Kd2 gf4-/+ 42.Bf4 Nd4 43.Kc3 Nc6 44.Bd6= Kf7 45.Rb2 Rb2 46.Kb2 Kf6 47.Bg3 e5 48.Kc3 g6 49.Kd3 Kf5 50.Kc4 Ke6 ½–½. Byrne,T – Baer,Werner, TT–13 ETC, 2004.

9.Be2 Nbd7 10.d4 Bb4 11.c3 Bd6 12.0-0 Ne4 (12...c5 13.bc6 bc6 14.c4=) 13.c4= b6 14.Nc3 Ndf6 15.Qc2 Bb7 16.cd5 ed5 17.Bb2 c6? (better 17...Qe7=) 18.bc6+- Bc6 (18...Nc3 19.Qc3 (worse 19.cb7 Ne2 20.Qe2 Qd7+-; 19.Bc3?! Bc6 20.Ne5 Bd7+-) 19...Ne4 20.Qc2+- (20.cb7? Nc3 21.Bc3 Qc7-+)) 19.Ne4 de4 20.Qc6 ef3 21.Qf3 (21.Bf3 Qb8 22.g3 h5+-) 21...Qe7 22.Bd3 h6? (22...Re8+-) 23.e4 Ba3 (23...Bb4 24.e5 Nd7 25.Rc1+-) 24.Ba3 Qa3 25.e5 Nd7 (25...Qb2 26.ef6 Qd4 27.fg7 Rd8+-) 26.Bh7! Kh7 27.Qa3 (27.Qa3 Kg8 28.Qd6 Ne5 29.de5+-) 1–0. DEFFM – GuestJPHR, freechess.org, 2019.

9.Be2 Re8 10.0-0 c6 11.d4 Bb4 12.c4 Bd7 (12...cb5 13.cb5 Qa5 14.Qb3=) 13.Qb3+= Be7 14.Nc3 Qb6 (14...dc4!? 15.Qc4 cb5 16.Nb5 Nc6+=) 15.c5 Qc7 (15...Qd8 16.b6+-) 16.Bd3 White plans b6 (16.b6 Qd8+-) 16...Ng4 (better 16...cb5!? 17.Rb1 b6 18.Nb5 Bb5 19.cb6 Qb6 20.Qb5 Qb5 21.Bb5 Rc8+=) 17.h3+- Nf6 18.b6 Qd8 19.Bb2 e5? (19...Bc8 20.Ra1+-) 20.Ne5 (better 20.de5!? Ne4 21.Be4 de4 22.Ne4 Be6+-) 20...Bc5 21.Nf7 (21.dc5 Re5 22.Nb5 Rg5+-) 21...Kf7 22.dc5 Be6 23.Ne2 d4? (better 23...Nbd7 24.Qa3 Kg8+-) 24.Qc2 de3 (24...Nbd7 25.Bd4 Bd5 26.Ng3+-) 25.Bh7 (25.fe3 Kf8 26.Bh7 Bf7+-) 25...ef2 (25...Kf8 26.fe3 Bf7 27.Nd4+-) 26.Rf2 Kf8 (26...Nbd7 27.Nf4 Bd5 28.Bg6 Kg8 29.Be8 Qe8+-) 27.Bf6 gf6 28.Qg6 Bf7 (28...Qd1 29.Rf1 Qf1 30.Kf1+-) 29.Qh6 Ke7 30.Qf6 Kd7 31.Qf7 Re7 32.Bf5 1–0. GuestNXXZ – GuestRHQM, freechess.org, 2019.

9.Be2 Re8 10.0-0 Nbd7 11.c4 (11.Ne5 Ne5 12.Be5 Nd7=) 11...dc4 12.Bc4 Nb6 (12...Bd6 13.d4=) 13.Be2 e5 (13...Bd6!?=) 14.Ne5 (14.Be5 Bd6 15.d4 Nbd5+-) 14...Bd6 (14...Bf5 15.d4 Bd6 16.Bf3+-) 15.d4 (15.f4 Nfd5+=) 15...Be5 (15...Nfd5 16.Nd2+-) 16.de5+- Nfd7 (16...Nfd5 17.Bd4+-) 17.f4 (17.Qd4 Qe7+- (17...Re5?? 18.f4+-)) 17...Nc5 (17...c5 18.Nc3+-) 18.Qc2 Qe7 (18...Nbd7 19.Bg4+-) 19.Rc1 Bf5? (better 19...Nba4+-) 20.Qc5 Qc5 21.Rc5 Bb1 22.Rc7 Be4 23.e6! Re6 (23...Re6 24.Bc4 Decoy; 23...fe6 24.Bg7 Discovered attack (24.Rg7 Pinning; 24.Rg7 Deflection)) 24.Bc4 Rd6 25.Bf7 Kf8 26.Bg7! Kg7 27.Bd5 Rd7 28.Rd7 Nd7 29.Be4 b6 (29...Nc5 30.Bd5+-) 30.Kf2 h6 (30...Nc5 31.Bc6+-) 31.Bc6 Nc5 (31...Nf8 32.e4+-) 32.e4 Kf6 33.Ke3 Ke6 1–0. DEFFM – GuestKNBF, freechess.org, 2018.

9.c4 0-0 10.d4 Bd6 11.Nc3=.

9.c4 dc4 10.Bc4 0-0 11.0-0 Bd7 (11...Bb7 12.Qe2=) 12.d4 (12.Be5 c6+=) 12...Bd6 13.Nc3 h6 (13...c6 14.Qb3+=) 14.e4 (14.Qb3 Ng4+=) 14...Nh7 (14...Bb4 15.Qd3+=) 15.d5 (15.e5 Be7+/–) 15...ed5 (15...e5 16.Qd3+=) 16.Nd5+/– Ng5 17.Ng5 Qg5 18.Qd4 (18.e5 A) 18...Be5? 19.f4 Bf4 20.Rf4+- (20.Nf4?! Bb5 21.Bb5 Qb5+/–); B) 18...Bc5 19.Nc7 Rc8+/–) 18...Bh3 (18...Re8 19.f4 Qg6 20.f5+/–) 19.Ne3 (19.Qg7!? Qg7 20.Bg7 Kg7 21.gh3+/–) 19...Bc5+= 20.Qd2 (20.Qg7!? Qg7 21.Bg7 Kg7 22.gh3 Be3 23.fe3+=) 20...Qg2?? (better is 20...c6=) 21.Ng2+- (21.Ng2 Nd7 22.Qc3+-) 1–0. Wartig,Wolfgang – Piegeler,x, corr JV2–19, 1996.

9.Be2 0-0 10.0-0 Nbd7 11.d4 Bd6 12.Nbd2 Bb7 13.c4 dc4 14.Nc4 Be7 15.Qa4 Nd5 16.Bb2 Bb4 17.Ra1 Nc3? (better 17...N7f6!?+=) 18.Qb4 Ne2 19.Kf1 Bf3 20.gf3 Nd4 21.Bd4 Qh4 22.Ra7 Qh2 (22...e5 23.Bc3 Rc8 24.Nd2+-) 23.Qe7 Nc5 24.Bc5 bc5 25.Rc7 (worse 25.Qc7 Qh1 26.Ke2 Qb1+-) 25...Qh1 26.Ke2 Qc1 27.Qc5 Ra8 (27...Rd8 28.Qd6! Qc2 29.Nd2 Rd6 30.Rc2 Kf8+-) 28.Rc8 (28.Rc8 Rc8 29.Qc8) 1-0. onur604 (2320) - one_shot_only (2210), Casual Rapid game, lichess.org, 2021.

9.Be5 0-0=.

8.Nc3 Be7 9.Nf3 0-0 10.Ne5 Nbd7=+ 11.Nd7 Bd7 12.Be2 c5 13.0-0 c4 (13...Qa5!? 14.Bb2 Ra8-/+) 14.d3= cd3 15.Bd3 (15.Qd3 Qc7=) 15...Qb6 (15...Qc7 16.Qf3=+) 16.Qb1 (16.Qf3 Ra8=) 16...Rc8 (16...e5 17.e4 d4 18.Nd5 Nd5 19.ed5=+) 17.Na4 (17.Ne2 Qc7=) 17...Qa5 18.Qb3 Be8 (18...Ra8 19.Nc3=+) 19.Rc1 (19.Bd4 Qc7=) 19...Nd7 (19...Ng4!?=+) 20.c4 dc4 21.Rc4?? (better 21.Bc4 Ra8 22.Nc3=) 21...Rc4 22.Bc4 (22.Qc4 Qe1 23.Bf1 Qa1 24.g3-+) 22...Nb6 (22...Qe1!? 23.Bf1 Qa1 24.Qc4-+) 23.Bc3?? (better 23.Nb6 Qa1 24.Bf1=+) 23...Qa4-+ 24.Qa4 Na4 25.Bd4 (25.Bd2 Bd7-+) 25...Bc5 (25...Bf6 26.Bf6 gf6 27.Kf1-+) 26.Be5 b6 (better 26...Nb6 27.Be2-+) 27.Bc7 (27.g4-+) 27...Nc3 28.Bd3 Bb5 29.Bb5 Nb5 30.g3 (30.Bg3-+) 30…Nc7 0-1. TWW_LONDON (1705) - DarBandSari (1720), lichess.org, 2021.

8.c4 e5 9.Nf3 (9.Be5 Bf5+-) 9...Bg4 (9...e4 10.Ne5=+) 10.Be2 (10.Be5 Nbd7 11.Bb2 Bd6+-) 10...Bd6 (10...dc4 11.Be5 cb5 12.Nc3 Bf3 13.Bf3=) 11.0-0 (better 11.Ne5!? Be2 12.Qe2+- (worse 12.Ke2 0-0=)) 11...e4 (11...dc4!? 12.Ne5 Be2 13.Qe2 cb5=+) 12.Nd4= Be2 13.Qe2 c5 (better 13...Be5!?=) 14.Nf5+- 0-0 15.Nd6 Qd6 16.cd5 (better 16.Bf6!? Qf6 17.Nc3+-) 16...Nd5= 17.Nc3 f5? (better 17...Nc3 18.Bc3 Re8+=) 18.Qc4+- Rd8 19.Rc1 (19.d3 Kf8 20.de4 Nb6+-) 19...b6 20.Bb2 (20.d4!? cd4 21.Nd5 Qd5 22.Bd4 Qc4 23.Rc4+-) 20...Kh8 21.Ra1 (21.d4 ed3 22.Qd3 Nc3 23.Qd6 Rd6 24.Bc3 Nd7=) 21...Nc3 (21...Nb4 22.Qe2 Nd3-/+ (22...Qd2?? 23.Rd1 Qd3 24.Rd3 Nd3 25.g4+-)) 22.Qc3 (worse 22.dc3 Qd2 23.Ba3 Nd7-/+) 22...Qd2?? (better 22...Qe7=) 23.Qg7 1–0. GuestVRVC – siml, freechess.org, 2017.

8.d4 Nbd7 9.Bd3 Qa5 10.Bc3 Bb4 (10...Qb6 11.bc6 bc6 12.Nf3=) 11.Bb4 Qb4 12.c3 Qa5 13.bc6 bc6 14.Ne2 0-0 15.0-0 Ba6 16.Ba6 Qa6 17.Nd2 Rb8 18.c4 Rb2 19.cd5 Nd5 (19...cd5 20.Nf4=+) 20.Ng3 Qb5 (20...c5 21.Nde4 cd4 22.Qd4=) 21.Nde4= N7f6 22.Qa1 Qb8 23.Qc1 Ne4 24.Ne4 Ne7 25.Qc5 Qb4 26.Qb4 Rb4 27.Ng3 (27.Ra1!? f6 28.Nd6+=) 27...f5 28.Ne2 Kf7 29.Rc1 g5 30.g3 Ke8 31.Kg2 Kd7 32.Ra1 Rb8 33.Nc1 Kd6 34.Nd3 g4 35.Nc5 Nd5 36.Ra7 Nc7 37.Rb7 Rb7=+ 38.Nb7 Kd5 39.f3 h5 40.Nd8 Ne8 41.Kf2 Ng7 42.Ke2 c5 43.dc5 Kc5 44.Nf7 Kd5 45.f4 Ne8 46.Ng5 (46.Ne5 Nd6=) ½–½. Wartig,Wolfgang – Seifert,J, corr SOK–89–48, 1989.

8.Be2 Qa5 9.Bc3 (9.Nc3 Bd7 10.Qb1 Bb4=) 9...Qb6 10.Nf3 Nbd7 11.0-0 c5 (11...Bd6 12.Bb2=) 12.Bb2+= c4 (12...Bd6 13.c4+=) 13.d3 (13.Nc3 Bd6+=) 13...Qb5 14.Bd4 (14.Qc1 Nb6=) 14...Bc5 (better 14...Qa6!?=) 15.dc4+- dc4 16.Nc3 Qb4 17.Qa1 Bd4 18.ed4 b5? (better 18...Nd5!? 19.Ne4 f5+-) 19.Rb1+- Qd6?? (better 19...Qe7 20.Nb5 0-0+-) 20.Nb5 Qc6 (20...Qb6 21.Qa3 Kd8 22.Nd2+-) 21.Qa3 (better 21.Ne5 Ne5 22.de5+-) 21...Nd5?? (21...Ne4+-) 22.Nd6 (better 22.Bc4 Kd8 23.Ng5 Rf8+-) 22...Kd8 (22...Ke7 23.Nc8 Kf6 24.Na7+-) 23.Nf7 Ke8 24.Nh8 N7f6 (24...Nf4 25.Bf1 Qa6 26.Qb4+-) 25.Ne5 Qc7 (25...Qa6 26.Qb2 Nd7 27.Bc4+-) 26.Bc4 (26.Bc4 Ne7 27.Nhf7+-) 1–0. DEFFM – GuestJQMS, freechess.org, 2020.

8.Be2 Nbd7 9.f4 Bd6 10.Nf3 0-0 11.0-0 c5 12.c4 Qc7 13.Nc3 b6 14.cd5 ed5 15.d4 Bb7 16.Ne5 Ra8 (worse is 16...Be5 17.de5 Ne5 18.fe5 Qe5 19.Qc1+=) 17.Bb2 Nf8 (worse is 17...Be5 18.de5 Ne5 19.fe5 Qe5 20.Qd3+/–) 18.Qd2 (18.dc5 Bc5 19.Qd3 Ne6+=) 18...Ne6 19.Rc1 Qe7 20.Kh1 c4 (20...Re8 21.Bf3+=) 21.Bf3 (21.e4 Ne4 22.Ne4 de4 23.Bc4 Qf6=) 21...Bb4 22.Qd1 (22.Qe2 Ra5+=) 22...Ra5-/+ 23.h3 (23.Rb1 Nc7-/+) 23...Nc7 (23...Bc3 24.Bc3 Rb5 25.Qa4-/+) 24.e4 (24.Nc4 dc4 25.Bb7 Qe3+=) 24...de4 (24...Ne4 25.Be4 de4 26.Nc4 Bc3 27.Rc3 Rb5 28.Ba3=) 25.Be2+= Bc3 (25...Nfd5 26.Nd5 Nd5 27.Bc4=) 26.Bc3 Ra8 27.Bc4 Bd5 28.Bf1 Be6 29.Nc6 Qd7 30.g4 Bd5 31.Ne5 Qd6 32.Bb4 Qb4-/+ 33.Rc7 e3 34.Kg1 g6 35.Rc2 Be4 36.Re2 Nd5-+ 37.Qc1 Qd4 38.Qc4 Qc4 39.Nc4 Ra1 40.Ne3 Bd3 41.Kf2 Ne3 42.Re3 Rf1 43.Kg3 Bb5 44.Rb3 Be2 45.Rb2 Bd1 46.Rb6 Rf3 47.Kh2 Rf4 48.Rd6 Bb3 49.Rd3 Rb4 50.Kg2 Be6 51.Rc3 Rb2 52.Kg3 Rb3 53.Rb3 Bb3 0–1. Degterev,Pavel (2545) – Bozyavkin,Anatoly (2360), 7. Ukrainian CCF Cup, 2008.

8.Nf3 Bc5 9.d4 Bb4 10.c3 Be7 11.Nbd2 Qa5 12.bc6 Nc6 13.Be2 0-0 14.0-0 Bd7 15.c4 Bb4 16.Qc2 Bd2 (16...Rc8 17.Rc1=) 17.Nd2+= Nb4 18.Qb2 Ra8 19.Rb1 Ne4 (19...Bc6!?+=) 20.Ne4+/- (20.Qb4?! Qb4 21.Rb4 Ra1 22.Rb1 Rb1 23.Nb1 dc4 24.Bc4 b5=) 20...de4 21.d5 (worse 21.Qb4 Qb4 22.Rb4 Ra1 23.Bf1 Bc6+=) 21...f6 22.Qd2 (worse 22.Qb4 Qb4 23.Rb4 Ra1 24.Bf1 ed5 25.cd5 b5+=) 22...Nd3 23.Bc3 Qa2 24.Ra1 (24.Rb7 Qd2 25.Bd2 Bc8+=) 24...Qa1+= 25.Ba1 Ra1 26.Bf1 ed5 27.cd5 Bb5 28.Qc3 Rc1 29.Qa5 Bc4?? (better 29...Ba6 30.Qd8 Kf7 31.Qd7 Kf8 32.Qd6 Ke8 33.Qe6 Kf8 34.Qd6 Ke8 35.Qe6 Kf8 36.Qd6=) 30.Qd8+- Kf7 31.Qd7 Kg6 32.Qg4 (32.Qe8!? Kh6 33.g4=) 32...Kf7= 33.Qe6 Kg6?? (better 33...Kf8 34.Qc8 Kf7 35.Qc7 Kg6 36.Qg3 Kf7 37.Qc7 Kg6 38.Qg3 Kf7 39.Qc7=) 34.Qe4+- Kf7 35.Qe6 (35.Qh7 Ne5 36.h3 Rf1 (36...Bf1?! 37.Qh5 Ke7 38.Kh2=) 37.Kh2 Rf2 (37...Bd5 38.f4+/-) 38.Qh5 Ke7-+) 35...Kg6 36.Qe8 Kg5 (36...Kh6 37.g4 g5 38.Qf8 Kg6 39.Qg8 Kh6 40.Kg2+-) 37.h4! Kh4 38.Qe4 Kg5 39.Kh2 (worse 39.Qh7 Nf2 40.Kf2 Rf1 41.Kg3 Bd5 42.Qg7 Kh5 43.Qh7 Kg5+-) 39...Rf1 40.Qc4 Rd1 41.Qc2 (41.Qc2 Nf2 42.Qf2+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

8.f4 cb5 9.Bb5 Nc6 10.Nf3 Qa5 11.Nc3 Bc5 12.0-0 0-0 13.Qe2 d4 (better is 13...Bd7!?+=) 14.Na4+/– Ba7 15.Nd4 Nd4 16.Bd4 (16.ed4?! Bd7 17.Bd7 Nd7=) 16...Bd4 17.ed4 Rd8 18.Nc5 Qa2 19.c3 b6 20.Bc4 Qa8 21.Nd3 Ne4 22.Ne5 Nd6 23.Qh5 Bb7 24.f5 Bg2 25.fe6 Bf1 26.ef7 (26.Kf1?! Nc4 27.Qf7 Kh8=) 26...Kf8 27.Bf1 (27.Kf1?! Nc4 28.Nc4 Qe4=) 27...Qe4 28.h3 h6 29.Qd1 Qf5 30.Qb3 Nf7 31.Qb4 Nd6 32.Qb6 Qg5 33.Kh1 Ne4 (better is 33...Kg8!?+/–) 34.Bc4+- Rd6 35.Qb8 Qd8 36.Ng6! Ke8 37.Qb7 (37...Nf2 38.Kh2+-) 1–0. pierre – samigodel, internet, 2006.

8.f4 Nbd7 9.Nf3 Bd6 10.Be2 0-0 11.0-0 Re8 12.bc6 (12.Be5 A) 12...Ne5? 13.fe5 (13.Ne5?! Qc7=+) 13...c5 14.c4+-; B) 12...Qc7 13.d4 B1) 13...Ne5? 14.fe5 (14.de5?! Bc5 15.ef6 Qf4+/–; < 14.Ne5 c5=+) 14...Be7 15.ef6 Bf6 16.bc6+-; B2) 13...Ne4=) 12...bc6 13.Be5 Qc7 (13...Ne5? 14.fe5 (14.Ne5?! Qc7=+) 14...Be7 15.ef6 Bf6 16.d4+-) 14.d4 c5 (14...Ne4 15.Nfd2=) 15.Nc3 (15.Na3 Qb6= (15...Ne5? 16.fe5 Bd7 17.ed6 Qd6 18.Nb1+-)) 15...c4?? (better is 15...Qb6=) 16.Nb5 +-. pcmvr (2225) – rhand (2140), net–chess.com, 2006.

8.f4 Be7 9.Nf3 0-0 (9...Bd7 10.Nc3=) 10.c4 (10.Nc3 c5=) 10...c5 (10...b6 11.bc6 Nc6 12.Bf6 Bf6 13.d4=+) 11.Be2= dc4 12.Bc4 Nbd7 13.Nc3 (13.Qc2 Nd5=) 13...b6 (13...Bd6 14.d4=) 14.0-0= ½–½. Mroz,Antoni – Lesiak,A, corr Poland, 1985.

8.g4 cb5 9.g5 Ne4 10.Bb5 Nc6 11.h4 h6 12.gh6 Rh6 13.Nf3 Bd7 14.Rg1 g6 15.Nc3 Rh4 (better 15...Bb4 16.Ne2 Be7=+) 16.Nh4+/- Qh4 17.Ne4 de4 18.Qb1 (18.Qg4 Qg4 19.Rg4 Nb4 20.Bd7 Kd7+/-) 18...Bd6 19.Qa2 Ke7 20.Qa4 Qh2 21.Rf1 Qg2 (21...Qh5!?+/-) 22.Qa8+- Ne5?? (better 22...Qg5 23.Qb7 Qc5+-) 23.Qb7 Nf3 24.Kd1 Qg4 (24...Be5 25.Qd7 Kf6 26.Be5 Ne5+-) 25.Qd7 Kf8 26.Qd8 (26.Qe8) 1-0. FeegLood (2490) - toar4 (2215), lichess.org, 2015.

9.Bc3 Qa2 10.Bf6 gf6 11.Nc3 Qa7 12.Nf3 Bb4 13.cd5 cd5 14.Be2 Qa3 15.Qc2 Qa1 16.Nd1 Bd7 17.0-0 (17.Qc7 Qa8+=) 17...Qa5 Exerts pressure on the isolated pawn 18.Nc3 Ke7 (18...0-0 19.Rc1+=) 19.Qb2 (19.e4 Bc3 20.dc3 Bb5 21.Bb5 Qb5+-) 19...Rc8 20.Ra1 (20.Rc1!? Qa3 21.Qc2+=) 20...Bc3= 21.dc3 Qc3 22.Qb1 e5 23.Ra7 (23.Bf1!?=) 23...Qc1-/+ 24.Qc1 Rc1 25.Bf1 Bb5?? (better 25...Bc8-/+) 26.Rb7+- Bd7 27.Rb8 Kd6 28.g3 Kc7 (28...Bc6 29.Rb3+-) 29.Rb2 Kd6 30.Kg2 Rd1 (30...Bf5 31.Rb6 Ke7 32.Rb7 Ke6 33.Bb5+-) 31.Rb6 Ke7 32.Nh4 (32.Be2 Ra1+-) 32...d4 33.ed4 ed4 (33...Rd4 34.Rb7 Kf8 35.Rb8 Kg7 36.Kf3+-) 34.Nf3 (34.Be2!? Rd2 35.Bc4 Rd1+-) 34...d3 35.Nd4?? (35.Rb3 Bf5 36.Nh4 Be4 37.f3 d2+-) 35...Bh3? (better 35...d2 36.Be2 Re1+=) 36.Kh3+- Rf1 37.Nf5 Kd7 (37...Ke8 38.Rb2+-) 38.Rd6 Kc7 39.Rd3 (39.f4 Rd1+-) 39...Rf2 40.Nh4 (40.g4 h5 41.Kg3 Rf1+-) 40...Ra2 (40...f5 41.Nf3+-) 41.Rf3 Ra6 42.Nf5 (42.Rf5 Kd7+-) 42...Re6 (42...Kc6 43.Rf4+-) 43.Nh6 (43.Ng7 Rb6+-) 43...Re7 (43...Kd7 44.Rf4+-) 44.Rf6 Kd7 (44...Kc8 45.Nf7 Kd7 46.Ng5+-) 45.Nf5 (better 45.Nf7 Re1 46.Rh6 Ke7 47.Rh7 Kf6+-) 45...Re6 (45...Re8+-) 46.Rf7 Re7 (46...Ke8 47.Rh7 Kf8+-) 47.Re7 (47.Re7 Kc6 48.Rh7+-) 1–0. GuestNYWJ – GuestMRKJ, freechess.org, 2019.

9.Bc3 Bb4 10.cd5 cb5 11.Bf6+- gf6 12.Qg4 (12.de6 fe6 13.Qg4 Bf8+-) 12...Qa2?? (better 12...Bf8+-) 13.Qb4+- 1–0. DEFFM – GuestRNYW, freechess.org, 2018.

9.Bc3 Bb4 10.cd5 Bc3!? 11.dc3 ed5 12.bc6 bc6=.

9.Bc3 Bb4 10.cd5 cd5 11.Qb3 Bc3 12.Nc3 0-0 13.Nf3 Nbd7 14.Be2 b6 (14...Nc5 15.Qb2=) 15.0-0+= Bb7 16.Nd4 (16.Qb2 Ra8+=) 16...Nc5 (16...Rc8 17.Qb2 Qa8 18.Nf3=) 17.Qb2 Ra8 18.Nc6 (18.Nc2 Qa7 19.d4 Nce4+=) 18...Qa3 19.Qc2 Qb3 20.Bd1 Qc2 21.Bc2 Kf8 22.d4 Ncd7 23.Rc1 Rc8 24.Ba4 Nb8 25.Na2 Ne4 26.Nab4 (26.Nb8 Rb8 27.Bc2 Ra8 28.Be4 de4=) 26...Nd6= 27.Rb1 Bc6 28.Nc6 (worse 28.bc6 b5 29.Bc2 Nc6 30.Nc6 Rc6-/+) 28...Nc6 29.bc6 b5 30.Bb5 Nb5 31.Rb5 Rc6 ½-½. GuestHRDF – Boas, freechess.org, 2020.

9.Bc3 Qb6 10.cd5 cd5 11.Nf3 Nbd7 12.Qc2 Bd6?? (better 12...Qc7=) 13.Bf6+- Nf6 (13...0-0 14.Bd4 Qd8 15.Bb2+-) 14.Qc8 (14.Qc8 Qd8 15.Qb7+-) 1–0. DEFFM – GuestRDNW, freechess.org, 2018.

9.Bc3 Qb6 10.Nf3 dc4 11.Bc4 cb5 12.Qb3 Bd7 13.0-0 Be7 14.Ne5 Na6 (better 14...Bc6!?=) 15.Nd7+- Nd7 16.Bg7 Rg8 (16...bc4 17.Qb6 Nb6 18.Bh8+-) 17.Bb5 Nac5 18.Qb2 Bf6?? (better 18...f6+-) 19.Bf6+- (19.Bf6 Kf8 20.Bc3+-) 1–0. DEFFM – GuestHGFT, freechess.org, 2019.

9.Nc3 Bb4 10.Nf3 0-0 11.Be2 cb5 12.cb5 Nbd7 13.0-0= e5 14.Qb3 e4 15.Nd4 Nc5 16.Qc2 Ne6 17.Nb3 Qc7 18.Bb2 Bd7 19.Rc1 Rc8 20.Qb1 Qd6 Black intends d4 (20...Qb6 21.Rc2=+) 21.Na4 (21.Na2 Rc1 22.Qc1 Ne8=) 21...h6 (21...Ra8 22.Nc3=+) 22.h3 (better 22.Rc8 Bc8 23.Bf6 gf6 24.Nc3=) 22...d4 (better 22...Ra8 23.Nc3 Qb6=+) 23.Rc8+/- Bc8 24.Nd4 (24.ed4 Nf4 25.Bc4 Bh3 26.gh3 Nh3 27.Kf1 Qf4-+) 24...Nd4 25.Bd4 (25.ed4?! Qf4= (25...Bd2? 26.Qc2+-)) 25...Bd2? (25...Bf5 26.Bf6 gf6 27.Nc3 Bc3 28.dc3+/-) 26.Bf6 (better 26.Qc2 Bh3 27.gh3+- (27.Qd2?! Ng4 28.g3 Nf6+-)) 26...Qf6+/- 27.Qe4 Bf5 28.Qc4 Qa1 29.Kh2 (29.Bf1 Ba5+/-) 29...Be1 (better 29...Qe5 30.g3 Be1+=) 30.Bg4?? (better 30.Qf4 Be6 31.Bd3+=) 30...Bf2 31.Bf5 (31.Qc8 Bc8 32.Bd1 Qd1 33.Nc5 Qg1) 31…Qg1 0-1. BeepBeepImAJeep (2680) - OreWa (2430), lichess.org, 2019.

9.Nc3 Bb4 10.Nf3 0-0 11.Be2 dc4 12.Bc4 Nd5 13.bc6 (13.0-0 Nc3 14.dc3 Bc3 15.Bc3 Qc3+=) 13...Nc3 14.dc3 Bc3 15.Bc3 (15.Ke2!?+=) 15...Qc3-/+ 16.Nd2 bc6 17.0-0 Rd8 18.Qb3 Qd2 19.Ra1?? (better is 19.Qb8 Ba6 20.Qb3 Bc4 21.Qc4-/+) 19...Na6! 20.g3 (20.Ra6 Qd1 Double attack; 20.Ba6 Ba6 Combination) 20...Nc5 21.Qb1 Qc3 22.Be2 g6 23.Ra8 Qf6 (23...Kg7 24.Bf3-+) 24.Qb6 (24.Qb4 Qe5-+) 24...Ne4 25.f4 e5 (25...Kg7 26.Qb4 Nc3 27.Bf3-+) 26.Ba6 (26.Qc7 Kg7 27.Rc8 Rd2-+) 26...ef4 27.ef4 (27.Qd8 Qd8 28.Rc8 Qc8 29.Bc8 fe3 30.Kf1-+) 27...Kg7 (better is 27...Rd1 28.Bf1 Kg7 29.Rc8-+) 28.Rc8 (28.Bc8 Rd1 29.Kg2 Rd2 30.Kf1 Qc3 31.Qb2 Qb2 32.Bg4 Rd1 33.Bd1 Qf2) 28...Qa1 29.Kg2 (29.Bf1 Rd1 30.Rg8 Kg8 31.Qb8 Kg7 32.Qe5 Qe5 33.fe5-+) 29...Rd2 30.Kh3 Nf2 0–1. Valpa – Magicpaul, playchess.de, 2002.

9.Nc3 Bb4 10.Nf3 0-0 11.Be2 dc4 12.bc6 bc6 13.0-0 Ba6 14.Qc2 Nbd7 15.Ne4 The isolani on c4 becomes a target 15...Ne4 16.Qe4 Qd5 (worse is 16...Bd2 17.Qd4 c3 18.Ba6+-) 17.Qg4 f6 18.Rc1 Increasing the pressure on the isolated pawn on c4 18...Ra8 19.Bc3 Bc3 20.dc3 Nc5 21.Nd4 f5 22.Qh4 Re8 23.Bh5 g6 24.Bf3 Ne4 (24...Qd8!? 25.Qg3 Qb8=) 25.Ra1 Bb7 26.Be4 fe4 27.h3 e5 28.Ne2 Qd2 (28...Rf8 29.Ng3=) 29.Ng3 Qc3 (better is 29...c5=) 30.Rd1+- Bc8 31.Rd8 (31.Rd8 Rd8 32.Qd8 Kf7 33.Qc7 Kf8 34.Qc8 Kg7 35.Ne4+-; 31.Ne4 Qc2 32.Rd8 Rd8 33.Qd8 Kf7 34.Qc7 Kf8 35.Qc8 Kg7 36.Qc7 Kh6+-) 1–0. Mittelbachert,Ulrich (1905) – Marzioch,Wilfried (1920), Ruhrgebiet VL2, 2004.

9.Nc3 Bd7 10.bc6 bc6 11.Nf3 Bd6 12.Be2 (12.Ne2 dc4 13.Bc3 Qa6=) 12...0-0 (12...e5 13.c5 Bc7 14.d4=) 13.0-0 Na6 (13...Rd8 14.d4=) 14.cd5 (14.d4 Rb8=) 14...Nd5 (14...cd5 15.d4=) 15.Ng5 (15.Ne4 Be7+=) 15...Nc3 (15...Nab4 16.Nge4 Be7 17.d4=) 16.Bc3 (16.dc3 Qg5 17.Qd6 Nc5+-) 16…Qg5= (16...Qg5 17.f4 Qg6 18.Ba6 Rb8=) 0–1. jaddwarrior (2005) – spanishdragonkid (2085), ChessWorld.net, 2016.

9.Nc3 Bd7 10.bc6 Nc6 11.cd5 ed5 12.Nf3 Nb4 13.Bb2 Bd6 14.Be2 0-0 15.0-0 Ne4 16.Nd4 Rc8 17.f3 Nc5 18.Ncb5 Bf8 19.Bc3 Na4 20.Qb3 Nc3 (20...Bb5 21.Bb5 Nc3 22.dc3=) 21.Nc3 (better is 21.dc3!? Nc6 22.Qd5 Nd4 23.cd4=) 21...Ra8 22.f4 Bc6 23.f5 Qc7 24.Qb1 Qe5 ½–½. Taus,Martin (2130) – Meissner,Ruediger (2105), ZH–2011–0-00549, 2011.

9.Nc3 Nbd7 10.Nf3 Bd6 11.Be2 0-0 12.0-0 Nb6 13.cd5 cd5 (worse 13...Nbd5 14.e4 Nc3 15.Bc3+=) 14.Qb3 Bd7 15.Rb1 (15.Bb2 Qb4 16.Qb4 Bb4=) 15...Rc8=+ 16.h3 Nc4 17.Bb2 Bb8 18.Bc4 dc4 19.Qa3 Qc7 20.Kf1 (20.Ne2 Qd6=+) 20...Qb6-/+ 21.Ba1 (21.Ra1 e5-/+ (21...Bb5? 22.Qb4+-)) 21...e5 22.Ke1 (22.Qe7!? Bf5 23.Rc1-/+) 22…Bf5 (22...Bf5 23.Na4 Qd8-/+) 0–1. Melich,Jindrich (2140) – Karnik,Pavel (2335), Tatry op Tatranska Lomnica, 1998.

9.Nc3 Be7 10.Nf3 0-0 11.Be2 Nbd7 12.0-0 Nc5 13.bc6 bc6 14.cd5 cd5 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 Bd6 18.Bd3 (18.f3 Nc3 19.Bc3 Qc3=) 18...f6 19.Nc6? (better 19.Nc4!? dc4 20.Be4=) 19...Qc7-/+ 20.Be4 Bh2 (20...de4!? 21.Qa4 Bd7-+ (21...Bh2?! 22.Kh1-/+)) 21.Kh1-/+ de4 22.d5? (22.Qc2 Bd6 23.Qe4 f5-/+) 22...Kh8 (22...Bd6 23.f3 ef3 24.Qf3-+) 23.Nb4 (23.g3 ed5 24.Nd4 Bg3 25.fg3 Qg3-/+) 23...Be5 (23...Bd6!? 24.Qd4-+) 24.de6 Ba1 25.Qa1 Qd6 26.Qd4 Qe6 27.Rc1 Qg4 28.Kg1 h6 29.Qc5 Rg8 30.Nd5 Bf5 (better 30...Be6!?-/+) 31.Ne7= Qg5?? (better 31...Rd8 32.Nf5 Rd1 33.Rd1 Qd1 34.Kh2 Qh5 35.Kg3 Qg5 36.Kh3 Qh5 37.Kg3 Qg5 38.Kh3 Qh5 39.Kg3=) 32.Nf5 Qg4 (32...g6 33.Nd6 Qc5 34.Rc5+-) 33.Ne7 (better 33.Nd6+-) 33...h5?? (33...Rd8+-) 34.Ng8 Kg8 35.Qc8 (better 35.Rc4!? Kh7+-) 35...Kh7 36.Qg4 hg4 37.g3 (37.Rc6 g3+-) 37...Kg6 38.Kg2 Kg5 39.Rc5 f5 40.Kf1 g6 41.Ke2 Kh5 42.Kd2 Kg5 43.Kc3 Kh5 (43...Kf6 44.Kd4+-) 44.Kd4 Kg5 (44...Kh6+-) 45.Ke5 Kh5 (45...f4 46.ef4 Kh6 47.Rc7 g5 48.f5 e3 49.fe3 Kh5 50.Rh7) 46.Kf4 g5 (46...Kh6 47.Rc7 g5 48.Kf5 Kh5 49.Rh7) 47.Kf5 Kh6 48.Rc7 Kh5 49.Rh7 1-0. BeepBeepImAJeep (2620) - San_009 (2095), lichess.org, 2017.

9.Nc3 Be7 10.Nf3 Nbd7 11.Be2 0-0 12.0-0 (12.cd5 cd5 13.0-0 e5=) 12...dc4 13.Bc4 cb5 (13...Nb6 14.Be2=) 14.Nb5 Nc5 (14...Qd8 15.d3=) 15.d3 (15.Bf6 Bf6 16.d4 Bd7+=) 15...Bd7 (15...Nd5 16.Be5=) 16.Bc3 Qb6 (16...Qa6 17.Qb1+=) 17.Qb1 Bc6 (17...Ra8 18.Ne5+=) 18.Rc1 (18.Nbd4 Qb1 19.Rb1 Ba4+=) 18...Bb5 (18...Bf3 19.gf3 Rc8 20.Bf6 Bf6 21.d4=) 19.Bb5+= Rd8 (19...Nd5 20.Bd4+=) 20.Bd4 Rd5 21.Ne5+/– Bd6? 22.f4 Be5 23.fe5+- Ng4? 24.Qb4 Nd3 25.Rc8 Rd8 26.Bb6 Rc8 27.Bd3 Rc1 28.Bf1 (28...h5 29.Qe7+-) 1–0. mrkt – nepos, kurnik, 2007.

9.Be5 Nbd7 10.Bc3 Bb4 11.Qb3 Bc3 12.Nc3 Ne4=.

9.Be5 Nbd7 10.Bc3 Bb4 11.cd5 cd5 12.Qb3 Bc3 13.Qc3 Qc3 14.Nc3 b6 (14...e5 15.d4=) 15.d4 Ke7 16.Bd3 Ne8 (16...e5 17.Nge2=) 17.Nge2 Nd6 (17...Nc7 18.Kd2+=) 18.0-0 (18.Kd2 Bb7+=) 18...Bb7 19.h4 (19.Ra1 f6+=) 19...f5 (19...Rc8 20.Ra1+= (worse 20.Bh7 g6-/+)) 20.Nf4 (20.Ra1 Rc8+=) 20...Ra8 (20...Rc8 21.Rc1=) 21.Rc1+= Ra3 (21...Ne4 22.Nce2+=) 22.Nb1 (22.Kf1 Nc4+=) 22...Rb3 Attacks the isolani on b5 (22...Ra5 23.Rc7 Ba8-/+) 23.Rc7+= g6 (23...Ba8 24.Ra7 Bb7 25.Kf1=) 24.Nd2+- Rb2 (24...Rd3!? 25.Nd3 Kd8+-) 25.Nf3+- Bc8 26.Ng5 h6 27.Nge6 (27.Ng6 Kf6 28.Ne6 Ke6 29.Nf4 Ke7 30.Nd5 Kd8+-) 27...g5? (27...Rd2+-) 28.hg5 hg5 1–0. DEFFM – GuestNLTZ, freechess.org, 2018.

9.Be5 Nbd7 10.Bc3 Bb4 11.cd5 ed5!? 12.Nf3 0-0=+.

9.Be5 Nbd7 10.Bc3 Bb4 11.cd5 Nd5 12.Bg7+= Rg8 13.Bb2 cb5 (13...Qa2 14.Qc1+=) 14.Qc2 N7b6 (14...Qc7 15.Qh7 N5f6+-) 15.Qh7+- Kf8 16.Nf3 Nc4 (16...f6!?+-) 17.Bc4+- bc4 18.0-0 c3? (better 18...Bd6+-) 19.Nc3 Bc3 20.dc3 (worse 20.Bc3 Nc3 21.dc3 Qc3+-) 20...Nc3 (20...Nf6 21.Qh4 Qf5+-) 21.Qc2 (21.Ra1 Rg2 22.Kg2+-) 21...Bd7 (21...Qf5 22.Ba3 Kg7 23.Qc3 f6 24.Rc1+-) 22.Bc3 Qh5 (22...Qa4 23.Qd3 Rg2 24.Kh1+-) 23.Qe4 (23.Ne5 Bc6 24.f3 Qg5+-) 23...Bc6 24.Qb4 Ke8 25.Ra1 b5 (25...Rg2 26.Kg2 Qg6 27.Kh3 Bf3 28.Ra8 Kd7 29.Kh4 Qh5 30.Kg3+-) 26.Qd6 Bd5 (26...Qd5 27.Qb8 Qd8+-) 27.Qb8 (27.Qb8 Kd7 28.Ra7 Bb7 29.Qb7 Kd6 30.Ra6 Kc5 31.Qc6) 1–0. DEFFM – GuestXJTM, freechess.org, 2019.

9.Bf6 gf6 10.Qb3 Qa1 11.bc6+= Nc6 12.cd5 ed5 13.Bd3 (better 13.Nf3+=) 13...Be6 Black prepares the advance d4 (13...Nb4 14.Bb5 Kd8 15.Ne2+=) 14.Nf3 (14.Qb7!? Ne5 15.Bb5 Kd8 16.Qb8 Ke7 17.Qc7 Bd7 18.Qc5 Kd8 19.Qb6 Ke7 20.Bd7 Nd7 21.Qb7+-) 14...Qa7 (14...Ne5 15.Be2+-) 15.0-0 Be7 (15...Bd6 16.Bb5+-) 16.Nc3 d4 17.Nd5 de3 (17...Kf8 18.Bc4 Bd6 19.Nb6+-) 18.de3 Nb4 (18...Kf8!?+-) 19.Nc7 (better 19.Nf6 Kf8 20.Qc3 Nd3 21.Ra1+-) 19...Kd7? (better 19...Kf8 20.Ne6 fe6+-) 20.Ne6 fe6 21.Bb5 Nc6 (21...Kc7 22.Rc1 Kb8 23.Qe6+-) 22.Nd4 e5 (22...Kc7 23.Bc6 bc6 24.Nc6 Qb6 25.Qe6 Qc6 26.Qe7 Kc8+-) 23.Qe6 Kd8 (23...Ke8 24.Nf5 Qc5+-) 24.Bc6 bc6 25.Nc6 Ke8 26.Na7 (26.Na7 Kf8 27.Rb1 f5 28.Rb7 e4 29.Qe7 Kg8 30.Qd8; 26.Qe7?! Qe7 27.Ne7 Ke7+-) 1–0. Adlai – Kuchem, corr, 2018.

9.Bf6 gf6 10.cd5 cd5 11.Qb3 Bb4 12.Nf3 Nd7 13.Be2 Nc5 14.Qb2 ½–½. Spiegel,Matthias – Moschell,Hans (1920), 2. Landesliga Ost, 2001.

9.Bf6 gf6 10.cd5 cd5 11.Nc3 Bd6 =.

9.Bf6 gf6 10.cd5 cd5 11.Nf3 Nd7 12.Qc2 Nb6 13.Bd3 (13.Qc7 Qb4 14.Nc3 Qd6 15.Qd6 Bd6=) 13...Bd6 (13...e5 14.Be2=) 14.Nd4 (14.0-0 Bd7=) 14...Ke7 (14...e5 15.Nb3 Qb4 16.Nc3=+ (16.Bh7? Qg4-+)) 15.0-0 (15.Nc3 Qa1 16.Nd1 Qa4=) 15...h5 (15...e5 16.Nb3 Qb4 17.f4=) 16.f4 (16.Nc3 Rg8+=) 16...Bd7 (16...e5 17.Nb3 Qb4 18.Nc3=) 17.Nc3+= Rc8 18.Be2 h4 (better is 18...Bc5 19.Qd3 Nc4=) 19.Qa2 (better is 19.Qh7!?+=) 19...Qa2-/+ 20.Na2 e5 21.fe5 fe5 22.Nf3 Rc2 23.Nc3 d4 24.Bd3 Rb2 25.ed4= ed4 26.Re1 Kf8 27.Ne4 Be7 28.Nd4+= Kg7 29.Kf1 Nd5 30.Bc4 Nf6 31.d3 h3+= 32.Re2 Rb1 33.Kf2 Ne4 34.Re4 Bc5 35.gh3+= Bh3 36.Kf3+/– f5 37.Ne6 Kf6 38.Nc5 fe4 39.Ne4 Ke5 40.Ke3 b6 41.Nf2 Bg2 42.h4 Kf5 43.Ne4 Be4= 44.de4 Ke5 45.h5 Rh1 46.Bf7 Rh3 47.Kf2 Ke4 48.Kg2 Ra3 49.h6 Ra8 50.h7 Rh8 51.Bg8 Kd4 52.Kg3 Kc5 53.Kg4 Kb5 54.Kg5 Kc5 55.Kg6 b5 56.Kg7 Rh7 57.Kh7 ½–½. Jaworski,Jan – Huebener,Joachim, corr ICCF EU–H–GT–8, 1980.

9.Bf6 gf6 10.cd5 cd5 11.Nf3 e5 12.Be2 =.

9.Qb3 Qa5 10.Bf6 gf6 11.Nf3 dc4 12.Qc4 c5 (12...Qb5 13.Qb5 cb5 14.Bb5 Bd7 15.Nc3=) 13.Bd3 Nd7 (13...Qd8 14.Nc3=) 14.0-0 1–0. GuestRMKW – GuestMWBJ, freechess.org, 2017.

9.Qb3 Ba5 10.Qa3 (10.Bf6 gf6 11.Nf3 Rg8=) 10...Bc7 11.Nf3 Bd6 (11...Bd7!?=) 12.c5 Be7 13.Be2 (13.Bf6 gf6 14.d4 e5+-) 13...0-0= 14.0-0 Nbd7 15.Rc1 (15.d4 cb5 16.Qb3 b4=) 15...Ne4 Pawn c5, live or die! (15...Nc5 16.Bf6 (worse 16.Rc5 b6-/+) 16...gf6 17.bc6 (worse 17.Rc5 b6-/+) 17...bc6 18.Nd4=) 16.Bd4 (16.d4 cb5 17.Bb5 b6=) 16...e5 (better 16...Re8!?=) 17.Ne5+- Ne5 18.Be5 Bh4 (18...Nc5!? 19.bc6 bc6 20.Rc5 Qb6+=) 19.f3 f6? (better 19...Bf6 20.Bf4 Ng5+-) 20.Bb2 (20.fe4 fe5 21.Qd3 Bf2 22.Kh1 Qh4=) 20...Ng5 (20...Bf2 21.Kh1 Ng5 22.Rf1+-) 21.Qa4 (21.g3 Nh3 22.Kg2 Re8+-) 21...Qc7 (21...f5 22.bc6 Ne6+-) 22.Qh4 1–0. DEFFM – GuestGQHX, freechess.org, 2018.

9.Qb3 Bd6 10.Nf3 =.

9.cd5 ed5 10.Nc3 Bf5 11.Qa4 c5 12.Nf3 Nbd7 13.Be2 0-0 14.0-0 Qa8 15.Qb3 Qa3 16.Qa3 Ba3 17.Nh4 Be6 18.f4 Nb6 19.Nb1 (19.Bd3 Bb4=+) 19...Bb4-/+ 20.Bf6 gf6 21.Nc3 Ra8 22.Rc1 f5 23.Nf3 Ra3 24.Kf2 Nc8 25.Ng5 Nd6 26.g3 (26.Bf3!?-/+) 26...c4 27.Ke1 (27.Ne6? Bc3 28.dc3 Ne4 29.Kf1 fe6-+) 27...Bc3 28.dc3 h6 29.Nf3 (better 29.Ne6!? fe6 30.Bf3-/+) 29...Nb5-+ 30.Rb1 Nc3 31.Rb7 Ne4 32.Kd1 Re3 33.Nd4 Ra3 34.Kc2 Ra2 35.Rb2 Ra4 36.Bf3 (36.Bh5 Ra1 37.Rb1 Ra7-+) 36...Kg7 (36...c3 37.Rb8 Kg7 38.Ne6 fe6 39.Rb7 Kf6 40.Bh5-+) 37.Rb6 Ra2 38.Rb2 Ra3 39.Rb6? (39.Be2-+) 39...Rd3 40.Be4 (40.Ne6 fe6 41.Bh1 Rd2 42.Kc1 Rh2 43.Be4 fe4 44.Re6 c3 45.Re7 Kf6-+) 40...fe4 (40...de4?! 41.Ne6 fe6 42.Re6-/+; 40...Rd4?! 41.Bf3-+) 41.Ne6 fe6 42.Re6 (42.h4 e3 43.g4 d4 44.Rb7 Kg6-+) 42...e3 43.Rc6 (43.Re7 Kf6 44.Re5-+) 43...Rd2 44.Kc3 d4 45.Kc4 Rc2 46.Kd4 Rc6 47.Ke3 h5 48.Ke4 (48.Kf2 Rc2 49.Kg1 Kf6-+) 48...Rc2 49.h3 Rh2 (better 49...Rc3 50.Ke5 Rg3-+) 50.h4 (50.Kf5 Rh3 51.g4-+) 50...Kf6 51.Ke3 Rb2 52.Kf3 Rb3 53.Kg2 Kf5 54.Kf2 (54.g4 hg4 55.h5 Kf4 56.Kf1 Rb2 57.h6 g3 58.h7 Kf3 59.Ke1 g2 60.h8Q g1Q) 54…Kg4 (54...Kg4 55.Ke2 Rg3 56.Kd2 Kf4 57.Kc2 Kg4 58.Kd2 Kh4 59.Ke2 Kg4 60.Kf2 h4 61.Ke2 h3 62.Kd2 h2 63.Ke2 h1Q 64.Kf2 Qh2 65.Ke1 Rg1) 0–1. DEFFM – GuestVXJR, freechess.org, 2019.

9.Nf3 0-0 10.Qa4 Qa5 11.Qa5 Ba5 12.Bc3 b6 13.Ba5 ba5 14.Nc3 cb5 15.cb5 Nbd7 16.d4 Nb6 17.Bd3 Bd7 (17...Bb7+=) 18.Ke2 (18.Ne5 Rc8 19.Kd2 Be8+/–) 18...Ra8? (better is 18...Rc8!? 19.Kd2 Ne4 20.Ne4 de4 21.Be4 Nc4 22.Ke2 Bb5=) 19.Ra1+/– h6 20.Na4 (better is 20.Ne5!?+/–) 20...Na4= 21.Ra4 Ne4 22.Ra3 f6 23.Nd2 Nd6 Exerts pressure on the isolated pawn 24.Nb3 The isolani on a5 becomes a target 24...Bb5 25.Ra5 (25.Na5?? Bd3 26.Kd3 Nc4-+) 25...Ra5 26.Na5 Be8 27.g4 h5 28.h3 g5 29.f4 gf4 30.ef4 Kg7 31.Nb3 ½–½. TuGGy – Harzakc, playchess.de, 2005.

9.Nf3 0-0 10.Nc3 c5 11.cd5 ed5 12.Qb3 Be6 13.Ng5 Bf5 14.Be2 d4 15.ed4 cd4 (better 15...Qd4!? 16.Nf3 Qd6=+) 16.Qb4+= dc3 17.Qc3 (worse 17.dc3 Bd3 18.Bf3 Re8 19.Kd2 Bb5 20.Kc1 Bc6-/+) 17...Re8 18.0-0? (better 18.Nf3 Qd5 19.Ne5=+) 18...Re2-+ 19.Qf3 (better 19.Qc4 Re7 20.Bf6 gf6 21.Nf3-+) 19...Bg4?? (19...Bd3 20.Bf6 gf6 21.Nh3 Rd2 22.Rd1-+) 20.Qb7?? (better 20.Bf6 Bf3 21.Bd8+=) 20...Nbd7 (20...Re7 21.Qa8 Ne8 22.Nf3-+) 21.Bc3 (21.Bf6 gf6 (21...Nf6?! 22.Qf7 Kh8 23.Qc4=) 22.Ne4 Nb6-/+) 21...h6 22.Nf3 (22.Bf6 Nf6 23.Qf7 Kh8-/+) 22...Bf3 (22...Ne4 23.Nd4 Nec5 24.Qc6-/+) 23.Qf3-/+ Re6 24.Rb1 Ne5 25.Qf5 Neg4 (better 25...Nc4!? 26.d3 Nd5-+) 26.h3=+ Qe8?? (better 26...g6 27.Qc2 Ne5=+) 27.hg4+- Re1? (better 27...Ne4+-) 28.Re1 Qe1 29.Kh2 Ne4 (29...Qe8 30.Bf6 gf6 31.d4+-) 30.Qc8 (better 30.Qe5 Kf8 31.Qb8 Ke7 32.Bb4 Ke6 33.Qc8 Kd5 34.Qc6 Kd4 35.d3 Qb4 36.Qe4 Kc5 37.Qb4 Kb4 38.b6+-) 30...Kh7 31.Qf5 Kg8 32.b6 (better 32.Qe5 Kf8 33.Qb8 Ke7 34.Bb4 Ke6 35.Qc8 Kd5 36.Qc6 Kd4 37.d3 Qb4 38.Qe4 Kc5 39.Qb4 Kb4 40.b6+-) 32...Nf2 (32...Nd6 33.Qf4 Qe6+-) 33.b7 Qh1 34.Kg3 Qe1 (34...Qh3 35.gh3 Ne4 36.Qe4 f5 37.b8Q Kh7 38.Qf5 g6 39.Qd7) 35.b8Q (35.b8Q Qe8 36.Qe8) 1-0. BeepBeepImAJeep (2530) - Isaev_A (2190), lichess.org, 2017.

9.Nf3 0-0 10.Be2 Nbd7 11.Nc3 Qe7 12.0-0 e5 13.d4 e4 14.Nd2 Rd8 (14...cb5 15.Nb5 Bd2 16.Qd2 dc4 17.Bb2=) 15.Qb3 (15.c5 Nb8+=) 15...Nf8 (15...dc4 16.Bc4 c5 17.dc5 Bc3 18.Bc3 Nc5 19.Qc2=) 16.Bb2 (16.c5 Bc3 17.Bc3 Bg4 18.Bg4 Ng4+=) 16...Ng6 17.bc6 (17.c5 Bc3 18.Bc3 Bg4 19.Bg4 Ng4+=) 17...bc6= 18.cd5 cd5 19.Rc1 Bd6 20.Nf1 (20.Nb5 Ba6=) 20...Bg4 (20...Be6 21.Nb5=) 21.Ng3 (better 21.Nd5!? Nd5 22.Bg4+=) 21...Be2 22.Nce2 h5 (22...Rb8!? 23.Qc3 Bb4=+) 23.Nf5= h4?? (better 23...Qe6 24.Nd6 Rd6=) 24.Ne7+- (24.Ne7 Ne7 25.Ba3 Ba3 26.Qa3+-) 1-0. BeepBeepImAJeep (2705) - MerVit (2460), lichess.org, 2020.

10.cd5 Qd5 11.Qd5 ed5 12.Bf6 gf6=.

11.Bd3 Nbd7 12.0-0 b6=.

11.Bd3 Nbd7 12.cd5 ed5 13.0-0 (13.Nc3 Bc3 14.Qc3 Qb6=) 13...Qe7=+ 14.Bc2 Nb6 (14...c4 15.Qb2=) 15.Qd3 (15.Bf6 Qf6 16.d4 Bf5=) 15...g6 16.Qb3 (16.Qe2 Bg4=) 16...Bg4=+ 17.Qb2 (17.Bd1 Ra8 18.Bc3 Bc3 19.Nc3 c4=+) 17...Bf3-/+ 18.gf3 Nbd7 (18...Kg7 19.Qe5 Qe5 20.Be5=+) 19.Bd1 (19.Nc3 Qd6=+) 19...d4 20.ed4 c4 21.Nc3 (21.Qc2 Ra8 22.Bb2 Rc8=+) 21...Re8 (21...Nb6 22.f4=+) 22.Qc2 (22.Bc2 Nh5 23.Ne4 Nf4-/+) 22...Nb6 (22...Nd5 23.Ne4=+) 23.Ne4 Nfd5 24.d3 (24.Be2 f5 25.Ng3 Rc8-/+) 24...c3 25.Qc1 (25.Re1 Ra8 26.Be2 f5-/+) 25...Qh4 26.Kh1 f5 27.Bb3 fe4 28.fe4 Kg7 (28...Kh8 29.f4-+) 29.f4 Qh3 30.Rf2 (30.ed5?? Re2 31.Rf2 Rf2 32.Qg1 Qf3 33.Qg2 Qg2) 30...Qd3 (better 30...Nf6 31.Qf1 Qd7-+) 31.ed5-/+ c2 32.Bc2 Qh3 33.Rg2 (33.d6 Re1 34.Qe1 Be1 35.d5 Kf8-+) 33...Re1 34.Qe1 Be1 35.f5 Nd5 36.fg6 hg6 37.Rg6 Kf8 38.Be4 Nf4 39.Rf6 (39.Rg2 Ng2 40.Bg2 Qd3 41.Bb2 Bb4 42.Bh3 Qf3 43.Kg1 Bd2 44.Ba3 Kg7 45.Bf8 Kf8 46.Bg2 Be3 47.Kh1 Qd1 48.Bf1 Qf1) 39...Ke7 40.Rf4 Bg3 41.Kg1 Bf4 42.Bg2 Qe3 (better 42...Bh2 43.Kf2 Qg3 44.Ke2 Qg2 45.Ke3 Bg1 46.Kd3 Qf1 47.Kc2 Qa1 48.d5-+) 43.Kf1 Bh2 (better 43...Qd3!? 44.Kf2 Be3 45.Kg3 Bd4 46.Kf4 Qd2 47.Kf5 Qf2 48.Ke4 Ba1 49.Bf3-+) 44.Bd5 (44.Bb7 Qg1 45.Ke2 Qa1 46.d5-+) 44…Bg3 (44...Bg3 45.Kg2 Qf2 46.Kh3 Bd6 47.Kg4 Qf4 48.Kh5 Kf6 49.Bb7 Qg5) 0–1. DEFFM – GuestLCTN, freechess.org, 2018.

11.Be2 Qa5 12.Bf6+- gf6 (12...dc4 13.Qc4 gf6 14.0-0+=) 13.cd5 ed5 (13...e5 14.Qc4 Bf5 15.0-0+-) 14.Qd5+- Be6 (14...Rd8!? 15.Qe4 Be6+-) 15.Qb7 Rd8 16.0-0?? (better 16.Qe4+-) 16...Bd5+- 17.Qe7 Nd7? (17...Kg7 18.Nh4 c4 19.Nf5 Kg6 20.Bh5 Kf5 21.g4 Kg5 22.h4 Kh4 23.Qf6 Kh3 24.g5 Kh4 25.Be2 Bf3 26.Qf4 Kh5 27.Bf3 Kg6 28.Qf6) 18.Qd6+- Be6 (18...Ne5 19.Qf6 Nf3 20.Bf3 Bf3 21.gf3+-) 19.Qg3 Kh8 20.Qf4 (20.Qh4 Rg8+-) 20...Qb6 (20...Rg8 21.Rc1+-) 21.Bd3 (21.Nc3 Rg8+-) 21...Rc8 Black prepares the advance c4 (21...Rg8 22.Qh4 f5 23.Rc1+-) 22.Qh4 f5 23.Ng5 Nf8 24.Qh5 (24.Ne6 fe6 25.Qf6 Kg8+-) 24...Rc7 25.Qh6 c4 26.Bf5! (26.Bf5 Qb5 27.Bh7+- (27.Ne6?! fe6 28.Qf6 Rg7+-)) 1–0. DEFFM – GuestVHPS, freechess.org, 2018.

11.Be2 b6 12.Bc3=.

11.Be2 Nbd7 12.0-0 dc4 (12...Qe7 13.d4=) 13.Qc4 (13.Bc4 Qe7=) 13...b6 (13...Qe7 14.d4=) 14.Rd1 (14.Bc3 Bc3 15.Nc3 Bb7=) 14...Bb7 15.Nc3 (15.d4 Bd5 16.Qc2 Qe7=) 15...Qc7 (15...Qe7 16.d4=) 16.Qh4 (16.d3 Ra8=+) 16...Ra8 17.Ng5 (17.Ne1 e5=) 17...Bc3 (17...Nf8 18.Nf3=+) 18.Bc3 (18.dc3 h6 19.Nf3 Be4=) 18...h6 19.Nf3 Ne4 (19...e5 20.d3=) 20.Qe7 (20.Ra1 Ra1 21.Ba1 Nef6=) 20...Qd6 (20...Qd8 21.Qd8 Rd8 22.Ra1=) 21.Qd6 Nd6 22.Ra1 (22.Ne5 Nf8=) ½–½. Brinks,Jan Willem – Ten Napel,Johan, NED–ch U20 op, 2000.

9.cb5 Qa5 10.Nc3 Bb4 11.Qc2 Bd7 (better is 11...Qa1 12.Nd1 0-0-+) 12.Bb2 0-0 13.Nf3 e5 (13...Rc8 14.Qd3=+) 14.Be2 (14.Ne5 Be6+/–) 14...d4 15.Ne4 (15.ed4 e4 16.Ne5 Qc7+=) 15...Ne4 16.Qe4 Bb5 17.Bb5?? (better is 17.Qe5 Be2 18.Qd4+= (< 18.Ke2 Qa6 19.Kd1 Nc6-/+)) 17...Qb5-+ 18.ed4 Nc6 (better is 18...ed4!? 19.Nd4 Bd2 20.Kd2 Qb2 21.Ke3 Qc3 22.Kf4 Nd7-+) 19.de5 Rd8 20.Bc3?? (better is 20.Qc2=) 20...Bc3-+ 21.dc3 Ne5 22.Nd4?? (22.Qe5 Qb1) 22...Nd3?? (22...Qa6 23.g4-+) 23.Kd2?? (better is 23.Ke2 Nc1 24.Kf3=) 23...Qb2?? (23...Nf2 24.Ke3 Qb2-+) 24.Ke3?? (better is 24.Kd3 Rc8 25.Ne2+-) 24...Nc5 (better is 24...Qc3 25.Nb5 Qb2-+) 25.Qc2-/+ Re8 26.Kf3 Qa3 27.Rd1 Qa6 28.c4 Qf6 29.Qf5 Qe7 30.Rd2 g6 31.Qf4 -/+. GULP – sriINDIA, Live Game Caissa's Web, 2004.

9.cb5 b6 10.Nf3 Be7 11.Qc2 0-0 (11...Nbd7 12.Be2=) 12.Bd3 (12.Bf6 Bf6 13.d4 Qd6+=) 12...g6 (12...Nbd7 13.Ne5=) 13.0-0+= Bb7 14.Ne5 Nbd7 15.Nc6 Bc6 16.bc6 (worse 16.Qc6 Nc5 17.Be2 Qb8-/+) 16...Nc5 17.Bb5 Nfe4? (better 17...Qc7!?+=) 18.d4+- Bf6 (18...Qa8 19.dc5 Qa1 20.cb6 Qa5+-) 19.Bb2 (19.dc5?! Ba1 20.Nd2 Nd2 21.Ra1 Ne4+=) 19...Qa8 (19...Qb8 20.f3 Bg5 21.Qe2+- (21.dc5?! Be3 22.Kh1 bc5 23.fe4 Qb5+=)) 20.dc5 Bb2 21.cb6 (21.Qb2 bc5 22.Rc1 c4+-) 21...Qa5 (21...Be5 22.Bd3 Nd6+-) 22.Qb2 Rb8 (22...Qb6 23.Rc1 Nd6+-) 23.c7 Rc8 (23...Qb6 24.cb8R Qb8 25.Rc1+-) 24.b7 (24.b7 Qc7 25.bc8R Qc8 26.Rc1+-) 1–0. guest170 – KIN_l, chessclub.com, 2018.

9.cb5 Bc5 10.Nf3 0-0 11.Be2 Qa5 12.Nc3 Nbd7 13.0-0 b6 (13...Bd6 14.Qa4 Qc7 15.Rc1+=) 14.Bb2 Bb7 15.Qc2 Qb4 (15...Qa7 16.d4 Bd6 17.Ra1=) 16.Ra1+- Ra8 17.Ra8 Ba8 18.Na4 Ne4 19.d3 Nef6 20.Bc3 Qa3 (20...Qb5? 21.d4 Qc6 22.dc5 (22.Nc5?! bc5 23.dc5 Ne4=) 22...bc5 23.Qb3+-) 21.Nd4 e5 22.Nc6 d4 23.Bb2 (23.Bb2 Qa2 24.Nc5 bc5 25.ed4 ed4 26.Bf3+=) 1–0. GuestGQXC – alestra, freechess.org, 2019.

9.cb5 Bd6 10.Nf3 0-0 11.Be2 b6 12.0-0 Bd7 13.d4 Qe8 14.Nc3 Bc8 (14...Qe7 15.Ne5=) 15.Qb3 Bb7 16.Ne5 Nbd7 17.f4 Ne5?? (better 17...Qe7=) 18.fe5+- Ne4 (18...Be5 19.de5 Nd7 20.Na4+-) 19.Ne4 (19.ed6?! Nd2 20.Qb4 Nf1 21.Bf1 Qd8+-) 19...de4 20.ed6 Qd7 21.Rc1 (21.Qb4!? Rc8+-) 21...Qd6 22.Qc2 Rc8 (22...Bd5+-) 23.Qc8 Bc8 24.Rc8 Qf8 25.Rf8 Kf8 26.Bc3 (26.Bc4!? h6+-) 26...Ke7 27.Bb4 (27.Bb4 Kd7 28.h4+-) 1-0. BeepBeepImAJeep (2520) - Xpaisa (1915), lichess.org, 2017.

9.cb5 Bd6 10.Nf3 0-0 11.Be2 Bd7 12.0-0 b6 13.Nc3 Re8 (13...e5 14.Qb3 Be6 15.Ng5=) 14.d4 Bb4 15.Ne5 Qe7 (15...Qc7 16.Qb3 Bd6 17.Bd3=) 16.Qb3 Bc3 (16...Bd6 17.Bb2+=) 17.Bc3+/- Ne4 18.Bb4 Qd8 (18...Qg5 19.Qa3 Rc8 20.Be7+-) 19.Rc1 f6 20.Nc6 Bc6 21.bc6 Qc7 22.Bb5 Rc8 (22...Ng5+/-) 23.f3 (23.Qa3 e5 24.Qa2 Rd8+-) 23...Ng5 (23...Nd6 24.Bd6 Qd6 25.Qc3+=) 24.Qa3 (better 24.Be1 Nf7 25.Bg3+-) 24...Qd8?? (better 24...Nf7+/-) 25.Bd6+- Nf7 (25...Nc6 26.Bc6 Nf7+-) 26.Bb8 Rb8 (26...Qe8+-) 27.c7 Rc8 (27...Qf8 28.Qf8 Rf8+-) 28.cd8Q (28.cd8Q Rd8 29.Qe7 h6 30.Rc7 Ra8 31.Qf7 Kh7 32.Qg7) 1-0. BeepBeepImAJeep (2525) - Sas1998 (1975), lichess.org, 2017.

9.cb5 Bd6 10.Nf3 0-0 11.Be2 Nbd7 12.0-0 Re8 13.Nc3 Nb6 14.d4 Bd7 15.Ne5 Be5?? (better 15...Qc7=) 16.de5+- Ne4 17.Ne4 de4 18.Qd4 Nd5 19.Qe4 Qa5 20.Bd4 (20.Bd3!? g6 21.Rb1 Rc8+-) 20...Bb5+/- 21.Ra1 Qa1 22.Ba1 Be2 23.Bd4 (23.Qc2 Ra8 24.Bd4 Ba6+/-) 23...b5 24.Qb1 Bc4 25.Bc5 Ra8 26.h3 Nc3 27.Qb4 (27.Qc2!? Nd5 28.Qd1+/-) 27...Ne2= 28.Kh2 Ra1 (better 28...Nc1!? 29.Be7 Nd3=) 29.Qd2+/- h6 (29...Ra8 30.Qd6+/-) 30.Qd8+= Kh7 31.Qf8 Ra2? (31...Kg6+-) 32.Qf7 Nc3 (32...Ra8 33.Bf8 Rf8 34.Qf8 Nc1+-) 33.Bf8 Rf2 (33...Ra7 34.Qa7 Kg6 35.g4 Kg5 36.Qg7 Kh4 37.Qh6) 34.Qg7 1-0. BeepBeepImAJeep (2590) - afink (1840), lichess.org, 2017.

9.cb5 Bd6 10.Nf3 Nbd7 11.Be2 0-0 12.0-0 Qc7 13.d4 (13.Qc1 Qb8=) 13...Ne4 (13...Nb6 14.Qc1=) 14.Qc1 Qc1 (14...Qb8 15.Nbd2=) 15.Rc1 f6 (15...Nb6 16.Ne5=) 16.Nbd2 (16.Nc3 Nc3 17.Bc3 e5+=) 16...Nd2= 17.Nd2 Nb6 18.Nb3 Nd7 (18...e5 19.Nc5=) 19.Nc5 (19.Bd3 g6+=) 19...Kf7= 20.Bb2 b6 21.Nb3 Bb7 22.h3 (22.Ra1 Ra8=) 22...Rc8 (22...Ra8 23.Bd3=) ½–½. Grund,Karl – Champion,William, corr USA–BRD, 1977.

9.cb5 Be7 10.Nf3 0-0 11.Be2 Qa5 12.Nc3 Ne4 13.0-0 Nc3 14.Bc3 Qc7 15.Qa1 Nd7? (better 15...f6!?+= and Black is still in the game) 16.Bg7+- f6? (better 16...Rd8+-) 17.Bf8 Kf8 18.Rc1 Qd8 19.Qc3 Bc5 (19...Nb6+- the last chance for counterplay) 20.d4 Be7 (20...b6 doesn't get the cat off the tree 21.dc5 Nc5 22.Nd4+-) 21.Qc8 (21.Qc8 Qc8 22.Rc8 Kf7 23.Rc7+-) 1-0. AvImd (1770) - vicwrc (1780), lichess.org, 2020.

9.cd5 ed5 10.Bb5 Nc6 11.Qa4 Qb6 (better 11...Be7!?=) 12.Bd4 Bc5 (12...Qd8 13.Nc3+-) 13.Bf6 gf6 14.Nc3 Be6?? (better 14...Qa7 15.Bc6 bc6 16.Qc6 Bd7 17.Qf6 Qa1 18.Ke2 Rf8 19.Nd5 Bb5 20.Kf3 Qf6 21.Nf6 Ke7 22.Nd5 Kd7+-) 15.Qa8+- Ke7 16.Qh8 d4 17.ed4 Bd4 18.Nge2 Bf2 19.Kf1 Bh4 (19...Bd4 20.Qh7 Be5 21.Qe4+-) 20.d4 Bg4 (20...Nd4 21.Qe8 Kd6 22.Qb8 Ke7+-) 21.Nd5 (21.Nd5 Kd6 22.Nb6+-) 1–0. DEFFM – GuestFXNY, freechess.org, 2019.

9.cd5 Nd5 10.Bb5 Nc6 11.Nf3 Bd7 (11...Qa5 12.Nc3=) 12.Nc3 Nc3 (12...Nf6 13.d4=) 13.Bc3 f6 (13...Nb4 14.Bb4 Bb5 15.Bf8 Rf8 16.Nd4=) 14.0-0+= Be7 (14...Bd6 15.Qb3+=) 15.Qb3 (15.Bc4 Qb6+=) 15...0-0 (15...Qb6 16.Rb1+=) 16.d4 (16.Bc4 Qc8+/–) 16...Kh8 (16...Qb6 17.Rb1 Rd8 18.d5 ed5 19.Qd5 Kh8 20.Bd3+/–) 17.d5 (17.Bc4!?+/–) 17...ed5+= 18.Qd5 Bg4 (18...Be8 19.Qd8 Nd8 20.Bd3+=) 19.Bc6+/– bc6 20.Qc6 Qc8 (20...Qd3 21.Bd4+=) 21.Nd4+/– Bd7 22.Qe4 Re8 23.Qd3 Bc5 24.Ne2 Bf5 25.Qd2 Rd8 26.Bd4 Bd4 27.Nd4+/– Bg6 28.Rc1 Qa8 29.Qc3 h6 30.Ra1 Qb7 31.Rc1 Rb8 32.h3 Qe4 33.f3 Qe8 34.Kh2 Qe5 35.Kg1 Rb1 36.Rb1+/– Bb1 37.Kf2 Bg6 38.Ne2 Qc3 39.Nc3 Bf7 40.e4 g5 41.g3 Kg7 42.Ke3 Kg6 43.f4 gf4 44.gf4 Bc4 45.Nd5 Bf1 46.h4 Kf7 47.Kd4 Ke6 48.Ne3 Be2 49.Nf5 h5 50.Ke3 Bg4 51.Ng3 f5? 52.ef5 Bf5?? 53.Nh5 Kf7 54.Ng3 Bb1 55.Kf3 Kf6 56.Kg4 Ba2 57.f5 Bb3 58.Nh5 Ke5 59.Kg5 Bf7 60.Ng7 Bg8 61.h5 Bf7 62.h6 Bg8 63.Kg6 Kd6 64.Nh5 Ke7 65.Kg7 (65...Bb3 66.f6 Kd6 67.h7+-) 1–0. Timmer,Hendrika – Loeffler,Louise Jeanne, WchWT Lublin, 1969.

9.cd5 Nd5 10.Bb5 Bd7 11.Bd7 Nd7 12.Nf3 =.

9.Bf6 Qf6 10.cd5 ed5 =.

10.Nc3 Qa5 Exerts pressure on the isolated pawn 11.Nf3 Bb4 12.Ne5 0-0 13.Be2 (13.Bd3 Ne4 14.0-0 Bc3 15.dc3 Bb5= (worse 15...Nc3 16.Qd2 Rc8 17.Bb2+-)) 13...Qc7 (13...Ne4 14.Ne4 de4 15.Nd7 Bd2 16.Qd2 Qa1 17.Bd1-/+) 14.f4 Bd6 15.0-0 Be5 16.fe5 Qe5 17.Na4 Qg5 18.Rf3 (better 18.Bf6!? gf6 19.Nc5+=) 18...e5-/+ 19.Rg3 (19.h4 Qh4 20.Be5 Ne4=+) 19...Qf5 20.Nc5 b6 21.Bd3 (21.Na4 Ne4 22.Rf3 Qe6=+) 21...e4 22.Be2?? (better 22.Nd7 Nbd7 23.Be2-/+) 22...g6 (better 22...bc5 23.Qf1 Qf1 24.Bf1 Kh8-+) 23.Nd7 (better 23.Na4!?+=) 23...Nbd7=+ (23...Nfd7? 24.Bg4 Qg5 25.Bd7+-) 24.Qc2 (24.Rg4 g5 (24...Ng4? 25.Bg4 Qg5 26.Bd7+-) 25.h4 h6=+ (worse 25...Ng4 26.Bg4 Qg6 27.Bd7+-)) 24...h5 (24...Ra8 25.Bb2-/+) 25.Qc3 Re8 26.h4 1–0. GuestJQKG – GuestHMUE, freechess.org, 2016.

10.Nc3 Be7 11.h3 0-0=+ 12.Nf3 Ne4 (12...Qc7 13.Be2=+) 13.Ne5 Be8 14.Ne4 de4 15.Qb3 Nd7 16.Be2 Ne5 17.Be5 Bf6 (17...f6 18.Bc3 (18.Qe6? Bf7 19.Qg4 fe5-+) 18...Bf7 19.0-0=) 18.Bf6+= Qf6 19.0-0 Bd7 20.d4 Rc8 (20...Qg6 21.Kh2+=) 21.Qb1 Ra8 (better 21...Qh4+=) 22.Qe4+- Bc8 23.Bd3 g6 24.Qf4 (24.Rc1 h6+-) 24...Qe7? (24...Qf4!? 25.ef4 b6+/-) 25.Qh6 (25.Rc1!? Qe8+-) 25...Ra5 26.Rb1 Bd7 (26...e5 27.de5 Qe5 28.Qh4+-) 27.Qf4 Ra3 (27...Qd8 28.Qd6+-) 28.Be4 b6 (28...e5 29.de5 Ra4 30.e6 Qe6 31.Qb8 Kg7 32.Bb7+-) 29.Bc6 (better 29.Qc7 Qe8 30.Qb6+-) 29...Rc3? (29...e5 30.de5 Rd3+-) 30.Qb8 Kg7 31.Qc7 (31.Qb6?! Bc6 32.bc6 Rc2+/-) 31...Qe8 32.Qe5 (32.Qd7 Qd7 33.Bd7 Rc7+-) 32...f6? (32...Kg8 33.d5 Rd3+-) 33.Qd6 (better 33.Qc7+-) 33...Bc6+= 34.bc6 Rc6 35.Qb4 Qb8? (35...Qd7 36.Ra1=) 36.e4 (better 36.Qe7 Kg8 37.Ra1+-) 36...Qc7 37.e5 (37.Qe1 Rc4 38.Qe3 b5=) 37...fe5 38.de5 Qe5 39.Qe7 Kh6 40.Qf8 Qg7 41.Qf4 g5 42.Qb4 (42.Qf3 Rd6=) 42...Qg6 (42...Qf6 43.Rd1=+) 43.h4 gh4 (43...e5 44.Qf8 Kh5 45.Rb5 Rc1 46.Kh2=) 44.Qh4 Qh5 45.Qf4 Qg5 (better 45...Kg6=) 46.Qh2 (46.Qf8!? Qg7 47.Qf3+=) 46...Kg6 (46...Kg7!? 47.Rd1 h5-/+) 47.Qg3? (better 47.Qb8 Rc1 48.Rc1 Qc1 49.Kh2=) 47…Qg3-+ (47...Qg3 48.fg3 e5-+) 0-1. TWW_LONDON (1635) - Urn247 (1640), lichess.org, 2021.

10.Nf3 Qa5 11.Nc3 Bb4 12.Be2 0-0 13.0-0 Ne4 14.Ne4 de4 15.Ne5 Bb5=+ (15...Bd2?? 16.Nc4 Qb5 17.Qd2+-) 16.Bb5 Qb5 17.Qg4 f5 (17...Bd2 18.Nd7 g6 19.Nf6 Kg7 20.Qf4+-) 18.Qg5 Rf6?? (better 18...h6 19.Qg6 Rf6=+) 19.Ng4+- Rg6 20.Qd8 Bf8 21.Ne5 Nc6 (21...Na6 22.Rc1 Nc5 23.Ng6 hg6 24.h4+-) 22.Qe8 Ne5?? (better 22...Rf6 23.Nc6 Qc6 24.Qc6 bc6 25.Bf6 gf6+-) 23.Qb5 Nf3 (23...Nc6 24.Qb7 Ne7 25.Be5+-) 24.Kh1 Nd2 (24...Ng5+-) 25.Rd1 (25.Rd1 e5 26.Qd5 Kh8 27.Be5+-) 1–0. Pierre – Tybling, internet, 2019.

10.Nf3 Bd6 11.Be2 0-0 12.0-0 Qb6 The isolani on b5 becomes a target (12...Qe7 13.Be5=) 13.Bf6+= gf6 14.Qa4 (14.Nc3 Kh8+=) 14...Kh8 (14...e5 15.Nc3 Be6 16.Qh4+=) 15.Qh4 Bb5?? (better 15...Kg7 16.Nc3 Rc8+=) 16.Qf6+- Kg8 17.Qb2 Na6 (17...Qc5 18.Bb5 Qb4 19.Qb4 Bb4 20.Rc1+-) 18.Nc3 Qa5 (18...Ba3 19.Qb1+-) 19.Nb5 Bb8 (19...Qb4 20.Qa2 Be7 21.d4+-) 20.Rc1 Nc7 (20...e5 21.Nc3 (21.Ne5?! Be5 22.Qe5 Qd2+-) 21...e4 22.Qb7+-) 21.Nd6 b6 (21...Na6 22.Nb7 Qb4+-) 22.Ne5 Qc3 (22...f6 23.Nd7 d4 24.Nf8 Kf8 25.Qd4 Nd5+-) 23.Qc3 1–0. Janek – Tyldum, internet, 2017.

10.Nf3 Be7 11.Be2 Qb6 Attacks the isolani on b5 12.0-0+= Bb5?? (better 12...0-0+=) 13.Qb3+- 1–0. DEFFM – GuestZZHG, freechess.org, 2019.

10.Nf3 Bd6 11.Nc3 0-0 12.Be2 Nb6 13.Na4 Bd7 (13...Na4 (idea Bd7)) 14.Nb6 Qb6 15.Bf6 gf6 16.Qa4 Rc8 17.0-0 e5 18.Qh4 Qd8 19.Qh5 Be6 20.Nh4 e4 21.Bg4 Qd7 22.Bf5 Bf5 23.Nf5 Bf8 24.f3 Rc2 25.fe4 de4 26.Qg4 Kh8 27.Qh4 Qd8 28.Qe4 Qd2 29.Qb7 Rc1 30.Qf3 Rf1 31.Qf1 Bc5 32.Kh1 Kg8 33.h4 Bd6 34.g3 Qd5 35.Kh2 Bf8 36.Nd4 Kg7 37.Qg2 Qe5 38.Qf3 Bc5 39.Nf5 Kg8 40.Kh3 Qe6 41.h5 h6 42.g4 Bf8 43.Qc6 Qe5 44.b6 Qa1 45.Ng3 Qe5 46.Qc8 Kg7 47.Nf5 Kh7 48.Qc7 Qd5 49.e4 Qb3 50.Ng3 1–0. Sokolski – Maseyev, corr SU.

10.Nf3 Bd6 11.Nc3 e5 12.Qb3 Nc5 13.Qa2 Be6 14.d4.

10.Nf3 Bd6 11.d4! Ne4 12.Bd3 Qa5 13.Nbd2 Bb4 (13...Nc3? 14.Qc1 Bb4 15.0-0 Nb6 (15...0-0 16.Bc3 Bc3 17.Nb3 Qb4 18.Qc2) 16.Nb3 Qa4 17.Bc3 Qb3 18.Bb4 Qb4 (18...Qd3? 19.Qc5) 19.Qc7 Qa5 20.Ng5!) 14.Ke2 Ndf6 15.Qc2 Bd7 16.Nb3 Qb6 17.Ne5 Nd6 18.Nc5! Bb5 19.Rb1 Qa5 20.Bb5 Nb5 21.Nb7 +/–. Sokolski – Weinblatt, 1949.

10.Nf3 Be7 11.Be2 0-0 12.0-0 Qa5 13.Bc3 (13.Nc3) 13...Qc7 14.Qc2 -+. Adam – Arnold, 1972.

10.f4 Bc5 11.Nf3 =+.

10.f4 Ne4 11.Nf3= Qa5 12.Nc3 Ndf6 13.Qc1 (13.Ne4 de4 14.Bc3 Bb4 15.Bf6 ef3 16.Bg7 Rg8+=) 13...Ba3 14.Bb2 Bb2 15.Qb2 Nc3 16.Qc3 Qc3 17.dc3 Ne4 (17...Ng4 18.Ke2=) 18.c4 dc4 19.Bc4 Nd6 (19...Bd7 20.Ne5+=) 20.Bd3 Bd7 21.Kf2 (better is 21.b6!?+=) 21...Bb5=+ 22.Bb5 Nb5 23.e4 Nc3 24.Ke3 0-0 (24...b5 25.Ra1 0-0 26.Ra7=+) 25.Kd3 (25.Rc1 Nb5=) 25...Na4 26.Rc1 Rd8 27.Ke3 h6 (27...Nb2 28.Rc7=+) 28.Rc7= b6 29.Ne5 Nc5 (29...f6 30.Nc6 Rd1 31.e5=) 30.Rf7 Ra8 (30...Rd1 31.Rc7+=) 31.Rc7+= Ra4 32.Rc8 (32.Nd7!? Ra3 33.Ke2 Ne4 34.Nb6 Nc3 35.Ke1=) 32...Kh7= 33.Kf3 Ne4 (33...Ra3 34.Kg4 Ne4 35.Rb8=+) 34.Rc6 (34.Nd7 Nd6 35.Rc6 Ra3 36.Kg4 Nf5=) 34...Nf6 35.Rb6 (35.Re6!? Ra3 36.Kf2=) 35...Rf4!?=+ 36.Kf4 Nd5 37.Ke4 Nb6 38.Kd4 (38.Nc6 Nc4=+) 38...g6 39.Kc5 Nd5 (39...Nc8 40.h3=+) 40.Kd6= Kg7 41.g3 (< 41.Ke6 Nf4 42.Kd6 Ng2-/+) 41...Kf6 42.Ng4 Kg5 43.h3 Nf6 44.Nf2 (44.Ne5 Ne4 45.Ke6 Ng3=) 44...Nh5-/+ 45.Ne4 Kf5 46.g4 Ke4 47.gh5 gh5 48.Ke6 h4 49.Kd6 ½–½. Myrberg,Johnny (1695) – Aurell,Bo (2260), DM Nordskaane SWE, 1990.

9.Nc3 Nbd7 10.Nf3 Bd6 11.Be2 0-0 12.0-0 Qa5 (12...c5 13.Qb3 dc4 14.Qc4=) 13.d4 dc4 14.Bc4 c5 (14...Rd8 15.Qc2=) 15.dc5+= Bc5 16.Qb3 (16.Qc2 Rd8+=) 16...Be7 (16...Rd8 17.Rd1+=) 17.Rd1 (17.Be6 Nc5 18.Qa2 Qc7 19.Bc8 Rc8+/–) 17...Nc5+= 18.Qb1 (18.Qa2 Qa2 19.Na2 Rd8 20.Rd8 Bd8+=) 18...b6 (18...Rd8 19.Rd8 Qd8 20.Ne2=) 19.Nd4 (19.Ne5 Qa7+=) 19...Qa7 20.Nc6 Qc7 21.Ne7 (21.Ne2 Bd6+=) 21...Qe7= 22.f3 (22.Bb2 Bb7 23.Qc2 Ng4=) 22...Bb7 23.e4 (23.Qb2!?=) 23...Nce4+= 24.Ne4 (24.fe4 Qc5 Theme: Double Attack) 24...Ne4 25.fe4 (25.Qd3 Nc5 26.Qd6 Qh4=) 25...Qc5-/+ 26.Bd4 Qc4 27.Bb6 Be4 28.Qb2 Bd3 (28...e5 29.Rc1 Qd5 30.Bc7-+) 29.Bd4+= Qb5 (29...f6 30.b6 Be4 31.Be3+=) 30.Bg7 Qb2 ½–½. Melich,Jindrich (2160) – Krutina,Miroslav, Tatry op Tatranska Lomnica, 1999.

9.Bd4 Qa5 10.Bc3 Qc7 11.Be5?? Qe5-+ 12.d4 (12.Nc3 Bb4 13.Nf3 Qd6-+) 12...Qg5 (better 12...Bb4!? 13.Nd2 Qf5 14.f3-+) 13.Nf3 Qh5 (13...Bb4 14.Nbd2 Qg6 15.Qb3-+) 14.Be2 (14.c5 b6! 15.Qa4 bc5-+) 14...Bb4 15.Nbd2 Bd2 (better 15...dc4!? 16.Bc4 cb5 17.Bd3-+) 16.Qd2 Qg6 17.0-0 0-0 18.Ne5 Qh6 19.cd5 cd5 20.f4 (20.Rc1 Nbd7-+) 20...Ne4 21.Qd3 Nd7 22.Bf3 Ne5 23.de5 Nc5 24.Qa3 Nd7 25.Qd6 Rd8?? (25...Qg6!? 26.Rd1-+) 26.Qc7?? (26.Qe7 Rf8 27.Qd6 Qg6-+) 26...Rf8 27.b6?? (27.Qd6 Qg6 28.Rd1-+) 27...f6 28.Ra1 (28.ef6 Qf6 29.Qd6 Re8-+) 28...fe5 29.Ra8 Qf6 (better 29...Qh4 30.g3 Qd8-+) 30.Rc8= ef4 31.Rf8 (31.Qd7 Qa1 32.Kf2 fe3 33.Ke3 Qg1 34.Ke2 Qb6=) 31...Nf8 32.ef4 Qd4 33.Kf1 Qd3 34.Kf2 Qd2 35.Kg3 (35.Kf1 h6=) 35...Qe1 (35...g5 36.fg5 Qg5 37.Kf2=+) 36.Kh3 (36.Kg4 Qb1 37.Kh3=) 36...g5 (36...h6 37.Bh5 g6-/+) 37.fg5+= Ng6? (better 37...Qe3!?+=) 38.Qc8+- Kg7 39.Qd7?? (better 39.Qb7!? Kg8 40.Qa8 Kf7 41.Qa4+-) 39...Kf8 (39...Kg8 40.Qd8 Kg7 41.Qf6 Kg8 42.Qd8 Kf7 43.Qc7 Kg8 44.Qb8 Nf8 45.Qb7 Qe5+-) 40.Qb7?? (better 40.Qh7 Qb1 41.Kg3=) 40…Qh4 0-1. Atotheking (1770) - urmil007 (1655), lichess.org, 2021.

9.Nf3 Be7 10.Nc3 0-0 11.Be2 dc4 12.Bc4 cb5 13.Nb5 Bd7 14.Nbd4 (14.0-0 Bb5 15.Qb1 Ne4 16.Qe4 Bc4 17.Qc4 Nd7=) 14...Nc6 (14...Rc8 15.Ne5=+) 15.0-0= Na5 16.Bd3 Rc8 17.Qe2 Nc6 18.Rb1 Qc7 19.Nb5 Qb8 20.Bc3 (20.Bf6 Bf6 21.Bh7 Kh7 22.Qd3 Kg8 23.Qd7 Rd8+=) 20...Nd5 21.e4 Nc3 22.Nc3 Ne5 23.Ne5 Qe5 24.Rb7 Qd6? (better 24...Bd6!? 25.g3 Bc6+=) 25.e5+- Qc6?? (better 25...Qd4+-) 26.Be4 Qb7 (26...Qc5 27.Rd7 Rc7 28.Rc7 Qc7 29.Qe3+-) 27.Bb7 Rb8 28.Qf3 Bb4 29.h3 Bc8 30.Bc8 Rc8 31.Kh2 1–0. GuestWRJS – GuestBKKB, freechess.org, 2017.

9.Nc3 Qa5 10.Bc4 Bd7 11.Qb1 Qb4 12.Qb4 Bb4 13.Nge2 0-0 14.bc6 bc6 15.0-0 c5 16.Nf4 Nc6 17.Na2 Na5 18.Be2 Ba4?? (better is 18...Nd5 19.Nd5 ed5=) 19.Bf6 gf6 20.Nb4 cb4 21.Ra1 Rc8 22.Ra4 Rc1 23.Bf1 Nc4 24.Ra8 Kg7 25.Rc8 b3 26.Nd3 Rc2 27.g4 (27.Ne1 Rc1 28.Rc4 b2+-) 27...e5 28.e4 Nd2 29.Rc2 bc2 30.Nc1 Nf3 31.Kg2 Nd4 32.f3 Kg6 33.Kg3 h5 34.Bd3 Kg5 35.h4 Kg6 36.f4 hg4 37.Kg4 Kh6 38.f5 Kg7 39.Kg3 Kh6 40.Kg4 Kg7 41.Bc4 1–0. Ettel,Thomas – Sunder,Thomas (2210), Hessenliga, 2006.

9.Nc3 Bb4 10.Bc4 Bc3 (10...Bd7 11.Nf3=) 11.Bc3 cb5 (11...Bd7 12.Qb3=) 12.Bb5 Bd7 13.Qa4 Nc6 (13...Bc6 14.Bc6 Nc6 15.Nf3=) 14.Nf3+= 0-0 15.Qa1 Qe7 (15...Nb8 16.Be2+=) 16.0-0 Rc8 17.Rb1 Be8 (17...Ne8 18.d4+-) 18.Be2 (18.Bf6 Qf6 19.Qf6 gf6+-) 18...Nh5 (18...Rc7 19.Rb3+-) 19.h3 (19.d3+-) 19...e5? (better 19...Nd8!?+-) 20.Ne5+- Ne5 21.Be5 f6 22.Bc3 f5 (22...b5 23.Bb5 Bg6 24.Rb4+-) 23.Qa2 (23.Qa7!? Bc6 24.Qa2 Kh8 25.Bh5 Qg5+-) 23...Kh8 (23...Bf7 24.Qa5 Nf6 25.Qf5+-) 24.Qb2 (24.Qa5 Qf7+-) 24...Nf6 (24...b5 25.Qb4 Qb4 26.Rb4+-) 25.Qb7 Qb7 (25...Rc7 26.Qb4 Qf7 27.Qb8+-) 26.Rb7 Bc6 27.Rf7 (better 27.Ra7+-) 27...Kg8 (27...Bd5 28.Ra7 Kg8+-) 28.Bc4 Bd5 29.Bd5 Nd5 30.Rg7 Kf8 31.Rh7 Nc3 (31...Rc6+-) 32.Rh8 (32.Rh8 Kf7 33.Rc8+-) 1–0. DEFFM – PrimoSalamanca, freechess.org, 2016.

9.Bc4 Qa5 10.Nc3 Be7 11.Nf3 0-0 12.0-0 Rd8 13.d4 Bb4 (13...Bd7 14.Qd3=) 14.Qb3+= Nd5 15.Rc1 Nd7 16.Nd5 ed5 17.Bd3 Nf6 (17...Nb8 18.Bb2 Bd6 19.Ra1+/-) 18.bc6 bc6 19.Ne5 Bd7 20.Bb2 (20.Qc2 Bd6+/-) 20...Bd6 21.Nd7 (21.Nc6? Bc6 22.Qc3 Qc3 23.Rc3 Rc8-+) 21...Nd7 22.Rc6 Qe1 23.Bf1 Bh2 24.Kh2 Qf1 25.Qd5 g6? (better 25...h5 26.Qg5 Rf8+-) 26.Ba3 Qf2 27.Be7 (27.Be7 Qe3 28.Bd8 Qh6 29.Kg3 Qe3 30.Kg4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Bc4 Bb4 10.Nf3 0-0 11.0-0 Qa5 (11...cb5 12.Bb5 Bd6 13.d3=) 12.Nc3 (12.Bf6 gf6 13.bc6 Nc6+=) 12...cb5 13.Nb5 Rd8 (13...Bd7 14.Qe2=) 14.Nc3 (14.Bf6!? gf6 15.d4+/-) 14...Nc6 15.Qb3 h6 16.Bb2 Qc7 17.d4 Qe7 18.Nb5 (18.Bd3 Na5 19.Qc2 Bd7+=) 18...Bd7 (18...Na5 19.Qc2=+) 19.Ne5 (19.Bc3 Bc3 20.Qc3 Rc8=) 19...Be8 (19...Na5 20.Qa2=+) 20.Nd3 (better 20.Bd3=) 20...Ba5?? (better 20...Na5 21.Qa2 Rc8=+) 21.Ba3+- Qd7 22.Rc1?? (22.Nc5!? Qc8 23.Ne6 Rd7+-) 22...Bb6 (better 22...Bd2 23.Nc5 Qc8+=) 23.Nc5?? (better 23.Nd6 Qc7 24.Bb5+/-) 23...Qc8?? (better 23...Bc5 24.Bc5 Na5-+) 24.Be2?? (better 24.Ne6 Rd7 25.Nd6+-) 24...Qa8 25.h3 Nd5 26.Bf3 Na5 27.Qb2 Rc8 28.Nd6 Rc6 29.Ne8 Qe8 30.Bd5 (30.Qb5!?+/-) 30...ed5= 31.Qb5 Nc4 (31...Qe7 32.Bb2=) 32.Bb4 (32.Nb7 Qe6 33.Rc4 Rc4=+) 32...Kh7 (better 32...Bc5 33.Bc5 Qe4=) 33.Nb7+/- Qd7 34.Nc5 Qc8? (better 34...Bc5 35.Bc5 f5+/-) 35.e4?? (better 35.Nd3 Ne5 36.Rc5 Nf3 37.gf3 Bc5 38.Bc5 Rf6+-) 35...Rg6?? (35...Nd6!? 36.Qd3 de4=) 36.Kh2 (better 36.Nd7 Rc6 37.ed5+-) 36...Bc7 37.e5 (better 37.g3 Rb6 38.Qa4+-) 37...Qf5=+ 38.Nb3?? (better 38.Rf1 Rb6 39.Qa4 Qf4 40.g3 Qd4 41.Nd7 Ne5 42.Nb6 Bb6 43.Qc2 g6 44.Bd6=) 38...Qf2-+ 39.Qd5 Ne3 40.Qf3 Rg2 (40...Rg2 41.Qg2 Qg2) 0-1. BeepBeepImAJeep (2655) - penguingim1 (2735), lichess.org, 2016.

9.Bc4 c5 10.Nc3 (10.Nf3 Nbd7=) 10...b6 11.Nf3 Qc7 (11...Bb7 12.0-0=) 12.Na4 (12.0-0 Bb7=) 12...Nbd7 13.d3 (13.Qe2 Bb7=) 13...Bd6+= 14.Qc2 Bb7 15.e4 0-0 16.Qb2 (16.0-0 Ra8+=) 16...Ra8 17.Bb3 (17.Qb3+=) 17...e5 (17...c4 18.dc4 Be4 19.Qc3-/+) 18.Ng5 (better is 18.0-0=) 18...Rf8?? (18...c4!? 19.dc4 Bb4 (19...Ne4?! 20.Ne4 Be4 21.0-0+=) 20.Kf1 Ne4 21.Ne4 Be4-+) 19.Qe2 (better is 19.Qa2 Nb8 20.Bc3+/–) 19...h6+= 20.h4 (20.Nf3+=) 20...Nb8 (20...c4 21.Bc4 Bb4 22.Bc3 Bc3 23.Nc3=) 21.f4 (21.Bc4!?=) 21...Bc8 (21...Nbd7 22.Nf7 Rf7 23.f5-/+) 22.f5 (22.Nf3 Nbd7+=) 22...Bd7-/+ (22...hg5 23.hg5 Nbd7 24.gf6 Nf6 25.g4+-) 23.Nc3 Qa7 (23...hg5 24.hg5 Qa7 25.Bb2 Bf5 26.ef5+-) 24.Bb2 Qa5 Attacking the isolated pawn on b5 (24...Be8 25.Nf3=) 25.Bc4 g6?? (better is 25...Qb4=) 26.Nf7+- Be7 (26...Rf7 27.fg6 Bg4 28.Qd2+-) 27.Ne5 Kg7 28.Ng6 Re8 (28...Bd6 29.Nf8 Be5 30.0-0 Bc3 31.e5 Bb2 32.ef6 Bf6 33.Qh5 Qa4 34.Qg6 Kf8 35.Qf7) 29.Ne7 (better is 29.0-0 Nc6 30.bc6 Bc6 31.Ne7 Re7+-) 29...Re7 (29...Bb5 30.0-0 Bc4 31.e5+-) 30.0-0 Kf8 31.Ra1 (31.Ra1 Qb4 32.Ra4+-) 1–0. Theebusch – Kerber,Wolfram, corr, 1972.

9.Bc4 Bd6 10.Nf3 =+.

9.Bc4 Bd7 10.Nc3 Bb4 11.Qb3 Bc3 12.Bc3 0-0 13.Nf3 cb5 14.Bb5 Bb5 15.Qb5 Qd7 16.Qb2 b5 (16...Qd3 17.Ne5 Qf5 18.Bd4+=) 17.Bf6 gf6 18.Qf6 Nc6 (18...Qd3!?+/-) 19.0-0 b4 20.Rc1 Rb8 (20...Rc8 21.Qg5 Kh8 22.d4+-) 21.Rc4 (21.Qg5 Kf8+-) 21...Ne7 (21...Qd3 22.Rg4 Kf8 23.h3 Qb1 24.Kh2+/-) 22.Rg4 (22.Ne5!? Qe8+-) 22...Ng6+/- 23.Qh8?? (better 23.Ne5 Qc7 24.h3+/-) 23…Kh8-+ (23...Kh8 24.h3 b3-+) 0-1. BeepBeepImAJeep (2740) - marcin110987 (1985), lichess.org, 2015.

9.Bc4 Bd7 10.Nc3 cb5 11.Bb5 Be7 12.Nf3 0-0 13.0-0 Bc6 14.d4 Nd5 15.Be2 Nc3 16.Bc3 Nd7 17.Nd2 Nb6 18.Bf3 Nd5 19.Bb2 Bd6 20.Qb3 Qh4 21.g3 Qh6 22.Nc4 Bb8 (22...Bc7!?=) 23.Ba3 Re8 24.Bd6 (24.Na5 Qf6 25.Nc6 bc6+/-) 24...b5 (24...Qf6 25.Bg2+=) 25.Ne5 (25.Bb8 bc4 26.Qc4 Rc8+/-) 25...Bd6+= 26.Nc6 Nc7 27.Rc1 e5? (better 27...Qg5!?+=) 28.de5+- Bf8 29.Nd4 Ne6 30.Qb5 (better 30.Nb5 Qg5 31.Bc6+-) 30...Nd4+= 31.ed4?? (better 31.Qe8 Nf3 32.Kg2+=) 31...Qc1-+ 32.Kg2 Qc7?? (better 32...Rd8 33.Qb6 Rc8-+) 33.Qe8+- Qe7 34.Qe7 Be7 35.Be4 f6 36.f4 fe5 37.de5 (37.fe5 Bb4 38.Kf3 Bc3+-) 37...g5 (37...Bc5 38.Kf3+-) 38.Kf3 gf4 (38...h5 39.f5+-) 39.gf4 (39.Bh7 Kh7 40.gf4 Kg6+-) 39...Kf7 (39...h5 40.Bd5 Kg7 41.f5+-) 40.Kg4 h6 41.Kh5 Kg7 (41...Ke6 42.Kh6 Bh4 43.Kg6+-) 42.Bg6 (better 42.f5 Bd8+-) 42...Bc5 43.f5 Bd4 44.e6 Bf6 45.h3 Be7 46.Kg4 Bf6 47.Kf4 Be7 (47...Kf8 48.Bh5+-) 48.Ke4 (48.Ke5 Bb4+-) 48...Bf6 (48...Kf6 49.Be8+-) 49.Kd5 Be7 50.Ke5 Bf6 51.Kd6 h5 (51...Kf8+-) 52.e7 h4 53.e8Q Be5 (53...Bd4 54.Qe7 Kh6 55.Qh4 Kg7 56.Qh7 Kf8 57.Qf7) 54.Ke6 (54.Ke5 Kh6 55.Qh8 Kg5 56.Qh5) 54...Kh6 (54...Ba1 55.Qe7 Kh6 56.Qh4 Kg7 57.Qh7 Kf8 58.Qf7) 55.Qf7 (55.Bh5 Kg7 56.Qf7 Kh8 57.Qf8 Kh7 58.Bg6) 55...Kg5 (55...Bg7 56.f6 Kg5 57.fg7 Kh6 58.g8N Kg5 59.Qf6) 56.Qh7 (56.Ke5 Kh6 57.Qh7 Kg5 58.Qh5) 56...Kf4+- 57.Qh5 (57.Qh5+-) 1-0. BeepBeepImAJeep (2680) - Koki22 (2250), lichess.org, 2017.

9.Bc4 Bd7 10.Nf3 cb5 11.Be2 Na6 12.Ne5 b4 (12...Bc6 13.0-0=+) 13.0-0 Nc7 14.d4 (14.Nd7 Nd7 15.Qc2 f6=) 14...Be7 15.Nd2 Ncd5 16.Qb3 0-0 17.Rc1 Qa5 18.Ndc4 (18.Nd7 Nd7 19.Bb2 Ra8=) 18...Qa7 19.Bb2 b5 20.Nd2 Rc8 21.Ra1 (21.Rc8 Bc8 22.e4 Nc3 23.Bc3 bc3 24.Qc3 Bd7=) 21...Qb7 22.Ra5 Attacking the isolated pawn on b5 22...Nc3 23.Bd3 Qb6 24.Ra1 Be8 25.Rc1 Nfd5 26.g3 f6 27.Nef3 Ra8 (27...f5 28.Ne5=+) 28.e4= Nc7 29.Bc3 bc3 30.Rc3 Ra3 31.Qc2 Rc3 32.Qc3 b4 33.Qb3 Qa5 34.Bc2 Qa3 35.Nc4 Qb3 36.Bb3 Kf7 37.Kf1 Nb5 38.Ke2 Nc3 39.Kd3 Bc6?? (39...Bb5 40.Nfd2=+) 40.Nfd2?? (better 40.Nfe5 fe5 41.Ne5 Ke8 42.Nc6+-) 40...Bb5 41.f4 g5 42.Kc2 (better 42.f5!?=) 42...gf4-/+ 43.gf4 h5 (43...Ne2 44.d5 ed5 45.ed5-/+) 44.Ne3 White prepares f5 (44.f5 ef5 45.Nd6 Kf8 46.Nf5= (worse 46.Nb5 Nb5 47.Kd3 fe4 48.Ne4 h4-/+)) 44...h4?? (better 44...Ne2 45.d5 Nf4 46.de6 Ne6-/+) 45.f5+/- Bd7? (45...Bd6 46.fe6 Ke8+/-) 46.Kd3?? (better 46.fe6 Be6 47.d5+-) 46...Bd6 (46...Bb5 47.Bc4 Bc4 48.Ndc4+=) 47.Nf3 h3 (47...Bb5 48.Kc2 Ke8 49.fe6+/- (49.Be6?! Ne4 50.Bd5 Nc3=)) 48.Ng4 (48.e5 Bc7 49.fe6 Be6+-) 48...Ke7 49.Nh4 (better 49.e5 fe5 50.f6 Ke8 51.de5+- (51.Nfe5?! Bb5 52.Kd2 Be5 53.Ne5 Nd5+=)) 49...Bf4?? (better 49...ef5 50.Nf5 Bf5 51.ef5 Nb5=) 50.Ng6+- Kd6 51.Nf4 ef5 52.Nf6 Bb5 53.Ke3 Ke7 (53...fe4 54.Nh3 Ke7 55.Ne4+-) 54.e5 Bc6 (54...Kd8 55.Bc2+-) 55.N6d5 (55.d5!? Bb5+-) 55...Bd5 56.Nd5 Kd7 57.Nb4 1-0. FeegLood (2810) - TwelveTeen (2650), lichess.org, 2017.

9.Bc4 Be7 10.Nc3 0-0 11.Nf3 Nd5 12.0-0 Nd7 13.bc6 bc6 14.d4 N7b6 15.Bd3 Nc3 (15...Nb4!?=) 16.Bc3+/- Nd5 17.Bb2 (17.Bd2 f5+/-) 17...Qb6 18.Qb1 (18.Qd2 Rd8+=) 18...Ba6= 19.Bh7 Kh8 20.Rc1 Rb8 (20...f5 21.Bf5 Rf5 22.Ne5=) 21.Rc2 (21.Ne5 g6 22.Nf7 (22.Nc6?! Nc3 23.Rc3 Qb2 24.Qb2 Rb2 25.Bg6 fg6=) 22...Kh7 23.Ne5+/-) 21...f5 22.Ne5 Attacking the isolated pawn on c6 (22.Bf5 ef5 23.Ne5 Bf6=) 22...Kh7=+ 23.g3? (23.Nd7 Qb3-+) 23...Bf6 (better 23...Rc8-+) 24.Qc1? (better 24.Nd7 Qb4 25.Nb8 Qb8 26.Rc6=) 24...Be5-+ 25.de5 Bd3 26.Bd4 Qb3 (26...Qa6 27.Rb2 Rb2 28.Bb2-+) 27.Rc6?! (27.Rb2 Qa3-+) 27...Qb1 (better 27...Qa4!? 28.Qd2 Qc6 29.Qd3 Qc1 30.Kg2-+) 28.h4 (28.h3 f4! 29.gf4 Be4-+) 28...Be4 29.Kh2?? (29.Rc5 f4! 30.gf4 Qd3-+) 29...Bf3 (better 29...Qa2 30.Rc2 Bc2 31.Qd2-+) 30.g4? (30.Rc2 Rb3 31.Rc8 Nb4-+) 30...Qa2 (better 30...Qe4 31.Qg1 Ne3 32.Be3 Qe5 33.Qg3 Qg3 34.Kg3 Bc6 35.Bc5-+) 31.Kg3 (31.Rc2 Qa6 32.gf5 Qd3-+ (32...ef5?! 33.Qg1-+)) 31...Qe2 (better 31...Be4 32.f3 f4 33.ef4 Rb1 34.fe4 Rc1 35.ed5 Rh1-+) 32.Qg1?? (32.Rc2 f4! 33.ef4 Qe4-+) 32...Rb2 (better 32...Be4 33.gf5 Rb1 34.Ba1 Rg1 35.Kh3 Bf5 36.Kh2 Qf2) 33.Kh2?? (better 33.Bb2 Ne3 34.fe3 Bc6 35.Qf2 Qg4 36.Kh2-/+) 33...Qf2 (33...Rb1 34.Bb2 Rg1 35.Kg1 Qe1 36.Kh2 Qf2 37.Kh3 Bg4) 34.Qf2 Rf2 35.Kg3 Rg2?? (better 35...Rf1 36.Re6 Bg4-+) 36.Kf3= Rg4 37.Rc7?? (37.Re6 Rh4 38.Rd6 Nc7+=) 37...Re4 (37...Nc7 38.Bb6 Nd5 39.Bd8-+) 38.Rg7?? (better 38.Rc6=) 38...Kg7-+ 39.Bc3 (39.h5-+) 39...Kf7 (better 39...Re3 40.Kg2 Nc3 41.Kg1-+) 40.Bd4 1-0. BeepBeepImAJeep (2680) - AlmostGM (2075), lichess.org, 2019.

9.Bc4 Be7 10.Nc3 cb5 11.Nb5 Bd7 12.Qb1 (12.Nf3 0-0=) 12...0-0 13.Nf3 Bc6 14.Be2 Qa5 15.Nbd4 (15.0-0 Nbd7=) 15...Be4=+ 16.Bd3?? (better 16.Qb2=+) 16…Bd3-+ (16...Bd3 17.Qd1 Rc8-+) 0–1. GuestXFLF – GuestNVTZ, freechess.org, 2017.

9.Bc4 Be7 10.Nf3 0-0 11.0-0 cb5 12.Bb5 Bd7 13.Be2 b5 14.d4 b4 15.Nbd2 Nc6 16.Qb1 Qc7 17.Nc4 Na5 18.Nce5 Ba4 19.Rc1 Qa7 20.Nd2 Nd7 21.Nec4 (21.Qa2 Nb6+=) 21...Nc4 22.Bc4 (worse 22.Rc4 Bb5-/+) 22...Nb6 23.Bd3 Nd5 (better 23...h6!?+=) 24.Bh7+/- Kh8 25.Be4 Qd7 26.Nc4 Rc8 27.Bd5 (better 27.Ne5!? Rc1 28.Qc1+/-) 27...ed5+= 28.Nb6 (28.Ne5 Rc1 29.Qc1 Qf5+=) 28...Rc1 29.Qc1 Qc6 30.Qc6 Bc6 31.Nc8 Bf8 32.Bb2 b3 33.Kf1 Bb4 34.Ke2 Bb5 35.Kd1 g5 (better 35...Kh7!?=) 36.Nb6+/- Bc6 37.Nc8 (better 37.e4!?+/-) 37...f5 38.Na7? (38.h3 Kg7=) 38...Bb7 (better 38...Bd7-/+) 39.Nb5= Kg7 40.Nc3 Bc3 41.Bc3 Kf6 42.Kc1 g4 43.Kb2 Kg5 44.g3 f4? (44...Ba6 45.Kb3 Bc4 46.Kb4+=) 45.Kb3 (better 45.gf4 Kf5 46.Kb3+-) 45...f3= 46.Bd2 Kf5 47.Kc3 Ke4 48.Bc1 Ba6 49.Kd2 Bf1 50.Ke1 Bh3 51.Bd2 Kf5 52.Kd1 Ke4 53.Kc2 Bg2 54.Kc3 Bh3 55.Bc1 Bg2 56.Kd2 Bh3 57.Bb2 Bg2 58.Ba3 Bh3 59.Bd6 Bg2 60.Be7 Bh3 61.Bg5 Bg2 62.Bf4 Bh3 63.Bg5 Bg2 64.h4?? (better 64.Ke1=) 64...Bh3 (better 64...gh3 65.g4 h2-+) 65.h5+- Bg2 (65...Kf5 66.h6 Kg6+-) 66.h6 1-0. BeepBeepImAJeep (2525) - OverCookedChicken (2410), lichess.org, 2016.

10.Bb5 Nc6 11.Bc6 bc6 12.Nf3 Ba6 13.d4 Qa5 14.Nbd2 (better 14.Bc3!? Qf5 15.Ne5=) 14...Ne4 15.Bb2 Bb4 16.Bc1?? (16.g4!?-/+) 16...0-0 (16...Nc3 17.Qc2 Qb5 18.Nb3 Ne4 19.Kd1-+) 17.Ne5 (17.h4 Qb5 18.Bb2 Ba5-+) 17...c5 (17...Qa1 18.Nef3 Bb5-+) 18.Nc6 Qb5 (18...Bd2!? 19.Bd2 Qc7-+ (19...Qd2?! 20.Qd2 Nd2 21.Kd2=)) 19.Nb4-/+ Qb4 20.f3?? (20.Qb3 Rc8 21.Qb4 cb4-+) 20...Nc3 (20...Qc3 21.Qb3 Qc1 22.Qd1 Qc3 23.Qe2 Be2 24.fe4 Qe3 25.Nc4 Bc4 26.Kd1 Bb3) 21.Qb3-/+ Qb3 (21...Qa5!? 22.dc5 Qc5-/+) 22.Nb3=+ cd4 23.Nd4 Rd8 24.Kf2 Nd5 25.Rd1 Rb8 26.Ba3 h6 27.Kg3 (27.e4 Nf4+=) 27...Nc3 (better 27...Ne3 28.Re1 Nc4-/+) 28.Rc1= Nb5 29.Nb5 Rb5 30.Rc7 Rb3 31.Be7 (31.Bc5 Rb2=) 31...Bf1 (31...Re3 32.h4=+) 32.Rc2 Re3?? (32...Kh7=) 33.Rf2?? (better 33.Kf2 Rd3 34.Kf1+-) 33...Bb5 34.Bd6 Bc6 35.Bc7 Rc3 36.Bd6 f6 37.Be7 e5 38.Bd6 Kf7 39.Kg4 Ke6 40.h4?? (better 40.Bf8 f5 41.Kg3-/+) 40...Kd6 41.h5 Ke6 42.g3 (42.Rf1-+) 42...f5 43.Kh3 Rc1 (better 43...Bf3!? 44.Ra2-+) 44.g4 Kf6 45.Kg3 fg4 (better 45...f4 46.Kh3-+) 46.fg4 Kg5 (46...Kg5 47.Rf5; better 46...Ke6-+) 0-1. Pi13 (2090) - RichardSommer (2125), lichess.org, 2020.

10.Bb5 Nc6 11.Nf3 Bd6 12.0-0 0-0 13.Bc6 (13.Qe2 Bd7=) 13...bc6 14.Qc2 Bb7 15.Ng5 e5 (15...Bh2 16.Kh1 e5 17.Nf3=) 16.Nc3 (16.f4!? Re8 17.Nf7 Kf7 18.fe5 Be5 19.Be5 Re5 20.Qb3 Re6 21.Qb7 Kg8 22.Qb3+/–) 16...h6 (16...Ba6 17.Rd1=) 17.Nge4 Ne4 (17...c5 18.Rb1 Bc6 19.d3=) 18.Ne4 Qc7 (18...c5 19.Nc5 Qc7 20.Rc1=) 19.Nc5 (19.f4!?+/–) 19...Bc8 (19...Rb8 20.h3=) 20.Rc1 Re8 (20...Rd8=) 21.d4 (better is 21.Ne4!?=) 21...ed4=+ 22.ed4? (22…Bh2 23.Kf1-+; better is 22.Bd4!? Bh2 23.Kh1=+). Hallam,John – Mouzon,J, US op Alexandria, 1996.

11.Qa4 Bb5 12.Qb5 Qd7 13.Qb3 +=.

11.Qa4 Bb5 12.Qb5 Qd7 13.Nc3 Be7 14.Nf3 0-0 15.Qb2 h6 (15...Nc6 16.0-0=+) 16.Ne5= Qc8 17.0-0 Nc6 18.f4 Re8 19.Rb1 Ne5 20.fe5 Nd7 21.Ne4 b6 22.Nd6 Bd6 23.ed6 e5 24.Rc1 Qb8 (24...Qa6!? 25.Rc7 Qa4=) 25.Rc7+= Nf6? (better 25...Nc5!?+=) 26.Qb5+- Qa8 (26...Qd8 27.Be5 Rf8+-) 27.Be5 Qe4?? (27...Ne4+-) 28.Bf6 gf6 29.d7 Re5 30.d8Q Kg7 (30...Re8 31.Qde8 Qe8 32.Qe8 Kg7 33.Qf7 Kh8 34.Qe8) 31.Qb6 (31.Rc8 Qg2 32.Kg2 Kg6 33.Qg8 Kf5 34.e4 Kf4 35.Qg3 Ke4 36.Qg4) 31...Rf5 (31...Qg6 32.Rc8 Qg2 33.Kg2 Rg5 34.Kh1 Kg6 35.Qdf6 Kh5 36.Qf3 Rg4 37.Qf5 Rg5 38.Qh3) 32.Rf7! Kf7 (32...Kf7 33.Qbc7 Mate attack) 33.Qbc7 Kg6 34.Qg8 Kh5 35.Qcf7 Kh4 36.Qg3 1-0. Guest – GuestElam, internet, 2020.

11.Qa4 Bb5 12.Qb5 Qd7 13.Qe2 +=.

11.Qa4 Nc6 12.Nc3 (12.Bf6 gf6 13.Nf3 Qa5=) 12...Be7 (12...Nb4 13.Nf3 Bb5 14.Qb5 Qd7 15.Ke2=) 13.Nf3= 0-0 14.0-0 Qa8 15.Bb2 (15.Qf4 Qb8=) 15...Qa4 16.Na4 (16.Ba4 Ra8=) 16...Ne4 (16...Ne5! 17.Ne5 Bb5+=) 17.Nb6= Be8 18.Ra1 (18.Rc1 Bd8 19.Nc4 Be7+=) 18...Bc5 19.Na4 (19.Nc4 Nb4 20.Be8 Re8=) 19...Bb4 Attacking the backward pawn on d2 (19...Be7 20.Nc3 Nd6 21.Be2+=) 20.Ba3 (20.d4 Na5 21.Bd3 Nb3+=) 20...Ba3= 21.Ra3 Nd6 (21...Ne7 22.Be8 Re8 23.Nb6=) 22.Be2+= f6 23.Nc5 (23.d4 Bg6 24.Nc5 e5+=) 23...Kf7 (23...Bf7 24.d4=) 24.Rb3 (24.d4 Ke7+=) 24...Na5 25.Rb4 (25.Rb6 Nc8 26.Rb4 b6=) 25...Bc6= 26.Nd4 Bd5 27.Nb5 Nb5 28.Rb5 Ra8 29.Bf3 Nc4+= Threatening mate: Ra1 30.Nb3 Nd6-/+ 31.Ra5 Ra5 32.Na5 Bf3 33.gf3 b6 34.Nb3+= Nc4 35.Kf1 Kg6 36.d3 Ne5 37.Ke2= Nc6 38.d4 Kg5 39.e4 Kf4+= 40.d5 ed5-+ 41.ed5 Nb4 42.d6 Ke5 43.d7 Nc6 44.Nd2 Kd6 45.Nc4 Kc7 46.Kd2 b5 47.Na3 b4 (47...b4 48.Nb5 Kd7-+; 47...Kd7?! 48.Nb5 Ne5 49.Nd4+=) 0–1. Buczinski,Henryk – Kudryk, Katowice Poland, 1977.

11.Qa4 Be7 12.Nf3 (12.Bf6 Bf6 13.d4 Bb5 14.Qb5 Qd7=) 12...Bb5 (12...0-0 13.Bf6 Bf6 14.d4=) 13.Qb5 Qd7 14.Qb3 Nc6 (14...0-0 15.Bf6 Bf6 16.0-0=) 15.0-0 0-0 16.Ne5 (16.Bf6 Bf6 17.d4 Rb8=) 16...Ne5 17.Be5 Rc8 18.d4 (18.Bf6 Bf6 19.d4 Qd5=) 18...Qc6 (18...Ng4 19.Bf4=) 19.Nd2 (19.Bf6 Bf6 20.Nd2 b5=) 19...b5 (19...Nd7 20.Nf3=) 20.Rb1 (20.Bf6 Bf6 21.Rb1 Rb8=) 20...b4 (20...Qc2 21.Qc2 Rc2 22.Bf6 gf6 23.Nb3=) 21.Bf6 gf6 22.h3 (22.Qd1 Qc2=) 22...Bd6 (22...f5 23.Qd1=) 23.Qb2 (23.Qd1 Qc2=) 23…Qc3 (23...f5 24.g3=) ½–½. Kreuzer,Uwe – Holzhauer, Verbandsliga Nordbad, 1983.

11.Qb3 Be7 12.Nf3 0-0 13.0-0 Ne4 14.Nc3 Nc5 15.Qc4 Bb5 16.Nb5 Nc6 17.Qc3 Qa8 18.Qg7# 1–0. Hugi – Nautiluschess, ICS blitz, 2000.

11.Nc3 Bb5 12.Nb5 Qb6 13.Nc3 Be7 14.Nf3 0-0 15.0-0 Nc6 16.d4 Rd8 17.Ne2 e5 (17...Bd6 18.Nc3=) 18.Qc2 ed4 19.Ned4 Nd4 20.Bd4 Qe6 21.Qb2 Rd7 22.h3 h6 23.Ra1 Kh7 (23...Rc7 24.Ne5+=) 24.Ra7+/- Qd5 25.Qc2 g6? (25...Qe4 26.Qb3+=) 26.Qc8 (26.Ne5 Rd8 27.Qc7 Re8+-) 26...Bd8 (26...Qc6 27.Ra8 Qc8 28.Rc8+/-) 27.Ne5 (better 27.Ra8!? Qc6 28.Qc6 bc6 29.Ne5+-) 27...Rc7+= 28.Qb8 Rc1 29.Kh2 Bc7 30.Qb7 Be5? (better 30...Qb7 31.Rb7 Ne4+/-) 31.f4?? (better 31.Be5 Qe5 32.f4+-) 31...Qb7 32.Rb7 Bd4 33.ed4 Rd1 (better 33...Kg7-+) 34.Rf7+- Kg8 35.Rf6 Rd4 (35...Kg7 36.Rd6+-) 36.Rg6 Kf7 37.Rg4 (37.f5 h5+-) 37...h5 38.Rg5 Rf4 39.Rh5 Kg7 40.Rg5 Kh6 41.Rg4 Rf6 42.Rc4 Ra6 43.Kg3 Kg6 44.Kh4 Kh6 45.g4 Kg6 46.Rc5 Kh6 47.Rh5 Kg6 48.Rg5 Kh6 49.Rf5 Kg6 50.Kg3 Ra3 51.Rf3 Ra4 52.h4 Ra6 53.h5 Kh6 54.Kh4 1-0. BeepBeepImAJeep (2685) - Koki22 (2360), lichess.org, 2019.

11.Be2 Qa5 12.Bc3 (12.Bf6 gf6 13.Nf3 Ba4=) 12...Bb4 (12...Qg5 13.Bf3=) 13.Nf3 Bc3 (13...0-0 14.Bf6 gf6 15.0-0=) 14.Nc3 (14.dc3 0-0=) 14...Nc6 (14...0-0 15.Qb1=) 15.Nb5 (15.Qb1 Qc7=) 15...0-0= 16.0-0 Ne7 (16...Nb4 17.Nc3=) 17.Nd6 (17.Qb3 Bb5 18.Bb5 Rc8+=) 17...Bc6 (17...Qb4 18.Nc4 Bc6=) 18.Nd4 (18.Qb1 Qd8 19.Nb7 Qc7=) 18...Qd5 (18...Bg2!? 19.Kg2 Qd5 20.Bf3 Qd6 21.Bb7 e5=+) 19.N6b5?? (better is 19.Nc6 Qc6 20.Nb5=) 19…Qg2# 0–1. OutOfBounce – kingofthehill, Live Game Caissa's Web, 2005.

11.Be2 Bb4 12.Nf3 Qa5 13.Nc3 Nc6 14.0-0 0-0 15.Qb3 e5 16.Bb2 Be6 17.Qc2 Qc7 18.Nb5 Qb6 (18...Qc8 19.Ne5 Ne5 20.Qc8 Bc8 21.Be5 Bd2 22.Nd6+/-) 19.Nc3 (19.Ne5 Rc8 20.Nc6 Rc6+/-) 19...Bc3 (19...Be7!?=) 20.Bc3+= e4 (20...Rc8 21.Rb1 Qc7 22.Qb2+=) 21.Nd4 (21.Ng5 Qd8+/-) 21...Nd4+= 22.Bd4 (worse 22.ed4 Qc6=+) 22...Qc6 23.Qb2 (23.Qc6 bc6 24.Rc1 Rc8+/-) 23...Ne8 (23...Ra8!?+=) 24.Rc1 Qd5 25.Bc4 Qf5 26.Be6 (26.Bf1 Qd5+/-) 26...Qe6 (26...fe6!? 27.Rf1 b5=) 27.Qb7+/- f6 28.h3 Nd6? (better 28...Rf7 29.Qc8 Qc8 30.Rc8 Re7+/-) 29.Qb6+- Qd5 30.Rc5 Qe6 31.Rc6 Rd8 (31...Qa2 32.Rd6 h6+-) 32.Qd8 (32.Qd8 Qe8 33.Qd6+-) 1-0. BeepBeepImAJeep (2540) - kusanagi99 (2055), lichess.org, 2016.

11.Be2 Qb6 12.Nf3 Bc5 13.Nc3 (13.Bf6 gf6 14.0-0 Bc6+=) 13...Bb4 14.0-0 Bc3 (14...Bc6!?+=) 15.Bc3+/- 0-0 16.Qa1 Nc6 (better 16...Qd8!?+/-) 17.Rb1 Qc7 18.Bf6 gf6 19.Qf6 Qd8 (19...Bc8 20.d4+-) 20.Qh6 f5 (20...Qe7 21.Rb7 f6 22.Qh4+-) 21.Ng5 Qe7 22.Bc4 (better 22.Rb7!? Ra8+-) 22...Nd8 (22...Rf6 23.Qh3 Ne5 24.Ba2+-) 23.Rb6 Rf6 24.Qh5 Rg6 25.h4 h6?? (better 25...Qg7+/-) 26.Qg6+- Qg7 1-0. BeepBeepImAJeep (2530) - zajcev (2075), lichess.org, 2017.

11.Be2 Bc6 12.Nf3 Bd6 13.0-0 0-0 14.d4 Nbd7 15.Nbd2 Nb6 16.Ne5 Be5 17.de5 Ne4 18.Nf3 (18.Ne4 Be4 19.Qd4 Bc6+=) 18...Bd5 (18...Qd1 19.Rd1 Rc8 20.Rc1=) 19.Bd4 Nc4 20.Qc2 b5 21.Rd1 Qe7 22.Bd3 Na3 23.Qb2 Ra8 24.h3 (24.Ne1 Ng5+=) 24...b4 (24...Qb7 25.Ra1 b4 26.Ne1+=) 25.Rc1+= Ng5? (25...Qb7 26.Ne1+=) 26.Nd2 (26.Ng5 Qg5 27.e4 Ba2+-) 26...h6 (26...Qb7 27.h4 Ne4 28.Ne4 Be4 29.Be4 Qe4 30.Qb4+/-) 27.e4 (27.f4 Nh7+-) 27...Bb7+/- 28.f4 Nh7 29.Bc5 Qd8 30.Qd4 (better 30.Be2 Ba6 31.Ba6 Ra6 32.Qb4+-) 30...Qd4= 31.Bd4 b3? (better 31...g5 32.g3 gf4 33.gf4 Nf8+=) 32.Nb3+- Ba6? (32...Nf8+-) 33.Ba6 Ra6 34.Ra1 (better 34.Rc8!? Nf8+-) 34...Nf8 (34...g5 35.f5 ef5 36.ef5+-) 35.Bc5 Nd7 36.Ra3 (36.Ba3 g5 37.g3 Ra4+-) 36...Rc6?? (better 36...Nc5 37.Ra6 Na6+-) 37.Ra8 Kh7 38.Bd6 Nb6 (38...Rc3 39.Ra7 Nb6+-) 39.Ra6 Rc3 (39...h5 40.Be7+-) 40.Rb6 Rc4 (40...Rc2 41.Nc5 Kg6 42.g4 Rc1 43.Kf2 Rc2 44.Ke3+-) 41.Nd2 (41.f5 ef5 42.ef5 Rc8+-) 41...Rc1 (41...Rd4 42.Rb2+-) 42.Kh2 Rd1 (42...Rc2 43.Nf3 Rc8 44.Rb7+-) 43.Nf3 Rd4 (43...Rd3+-) 44.Nd4 g6 45.f5 (45.Ne6 fe6 46.Rb7 Kh8 47.f5 gf5 48.ef5 ef5 49.e6 Kg8 50.Rb8 Kh7 51.e7 h5 52.e8Q Kh6 53.Bf4 Kg7 54.Qd7 Kf6 55.Rb6) 45...h5 46.f6 g5 47.Rb8 Kg6 (47...g4 48.Ne6! g3 49.Kg1 fe6 50.Rb7 Kh6 51.f7 h4 52.f8Q Kh5 53.Rh7 Kg5 54.Qf6) 48.Rg8 Kh7 49.Rg7 Kh8 (49...Kh6 50.Nc6 g4 51.Nd8 g3 52.Kg1 h4 53.Nf7 Kh5 54.Rg5) 50.Nc6 h4 (50...g4 51.Nd8 g3 52.Kg1 h4 53.Nf7) 51.Nd8 g4 52.Nf7 1-0. BeepBeepImAJeep (2570) - kos92 (2200), lichess.org, 2017.

11.Be2 Bc6 12.Nf3 Nbd7 13.0-0 Bd6 14.Nc3 Qc7 15.d4 0-0 16.h3 e5?? (16...Ra8 17.Nb5 Bb5 18.Bb5=) 17.de5?? (better 17.d5+-) 17...Ne5= 18.Ne5 Be5 19.Bf3? (19.Nb5!? Qe7 20.Be5 Qe5 21.Nd4=) 19...Rd8 (19...Bc3 20.Bc3 Bf3 21.Qa1-+) 20.Qe2? (better 20.Qb3=+) 20...Bc3-+ 21.Bc6 (21.Bc3 Bf3 22.Qb2-+) 21...Qc6 (21...bc6?! 22.Bc3 Nd5 23.Bd4=) 22.Rc1 Ne4 23.f3 Rd2 24.Qe1 Qg6 25.Qf1 h5 (better 25...Rf2 26.Qf2 Nf2 27.Rc3 Nh3 28.Kh2 h5 29.Kh3 h4-+) 26.fe4 Ba1 27.Ra1 Qe4 28.Ra3 g6 29.Qf3 (29.Kh2 h4-/+) 29...Qc2 (29...Qf3 30.gf3 Rb2 31.e4-+) 30.Ra8 Kg7 31.Ra7?? (better 31.Kh2 Qc7 32.Qg3 Qg3 33.Kg3-+) 31...Qc1 32.Kh2 Rd1 33.Rb7 (33.Ra2 Rh1 34.Kg3 h4 35.Kh4 Qc4 36.Kg3 Qa2-+) 33...Rh1 34.Kg3 Qe1 35.Qf2 h4! 36.Kf3 (36.Kh4 Qf2 Double attack (36...Qf2 Deflection)) 36...Rf1 37.Rb2 Rf2 38.Rf2 f5 39.Re2 (39.g3 Qh1 40.Rg2 Qf1 41.Rf2 Qh3-+) 39...Qf1 (39...Qg3) 40.Rf2-+ Qc4 (40...Qg1!? 41.Ke2-+) 41.Re2 Qe4 42.Kf2 g5 43.Rd2 (43.Re1 g4 44.Re2 gh3 45.gh3 Qh1-+) 43...g4 44.Rd4 (44.Re2 g3 45.Ke1-+) 44...g3 45.Kf1 Qc2 (45...Qe3 46.Rd7 Kh6 47.Rh7 Kg5 48.Rh5 Kg6 49.Rh6 Qh6 50.Ke1 Qc1 51.Ke2 Qc2 52.Ke1 f4 53.Kf1 Qd1) 46.Rf4 (46.Ke1 Qg2 47.Rd2 Qh3 48.Rd7 Kf6 49.Rd6 Ke5 50.Rg6 Qh1 51.Kd2-+) 46…Qd1 0-1. BeepBeepImAJeep (2650) - Masterclass2 (2330), lichess.org, 2018.

11.Be2 Bd6 12.Nf3 0-0 13.0-0 Bc6 14.d4 Nbd7 15.Nbd2 Qe7 16.Nc4 Bc7 17.Bb2 Ra8 18.Qb3 Nd5 19.Nce5 Ne5 20.Ne5 Be5 21.de5 Qb4 22.Qb4 Nb4 23.Bd4 Ra2 24.Bc4 Rc2 25.Bb3 Rd2 26.Ra1 h6 27.h3 Nd5 28.Kf1 Bb5 29.Kg1 g6 (better 29...Nc7!?=) 30.Ra8 Kg7 31.Bd5 ed5 32.e6 f6 (better 32...Rd4!? 33.ed4 fe6+/-) 33.Rc8+- Rd1 34.Kh2 Rb1 (34...Rf1 35.Rc7 Kf8 36.Rb7 Ba4+-) 35.Rc7 Kf8 (35...Kg8 36.Bf6 g5 37.Rg7 Kh8 38.Rg5 Kh7 39.Rg7 Kh8 40.Rb7 Kg8 41.Rg7 Kh8+-) 36.Bf6 Bc6 (36...Rf1 37.Rh7 Rh1 38.Kh1 d4 39.Rh8) 37.Rh7 (37.Rh7 Rh1 38.Kh1 d4 39.Rh8) 1-0. BeepBeepImAJeep (2670) - Koki22 (2200), lichess.org, 2017.

11.Bf6 gf6 12.Bd7 Qd7 13.Nf3 Nc6 14.0-0 Be7 (14...Bb4 15.Qb3+=) 15.Qa4 Ne5 16.Qa8 Bd8 17.Ne5 fe5 18.Nc3 (18.Qa1 f6+=) 18...0-0= (18...Qd2?? 19.Rd1 Qd1 20.Nd1+-) 19.Rb1 (19.Qa2 Be7+=) 19...b6 (19...Qd2 20.Ne4 Qc2 21.Qb7=) 20.Qe4 (20.Qa2 f5+=) 20...Bc7 (20...Qd2 21.Qe5 Be7 22.Ne4=) 21.Qg4 Kh8 22.Nb5 (better 22.Qb4 Kg7 23.Rd1+=) 22...Qd3?? (better 22...Qd2 23.Qe4 Bb8=) 23.Qb4+- Bb8 (23...Rc8 24.Rc1 Rd8 25.Rc7 Qd2 26.Qd2 Rd2+-) 24.Qf8 1–0. GuestWXSH – GuestMBXZ, freechess.org, 2019.

11.Bf6 Qf6 12.Bd7 Kd7 13.Qb3 Kc8 14.Nf3 +/–.

11.Bf6 Qf6 12.Bd7 Kd7 13.Qb3 Ke8 14.Qb7 +=.

11.Bf6 Qf6 12.Bd7 Nd7 =.

9.d4 cd4 10.Bd4 Bb4 11.Bc3 Bc3 12.Nc3 Qa5 13.Qc2 Ne4 (13...e5 14.cd5 Nd5 15.Nge2=+) 14.Nge2= Nd7 15.f3 Nc3 (15...Nef6 16.cd5 Nd5 17.Qd2=) 16.Nc3 (16.Qc3 Qc3 17.Nc3 dc4 18.Bc4 Ke7=) 16...Nc5 (16...Nb6 17.Kf2 dc4 18.Ne4=) 17.Be2 (17.cd5!? Na4 18.Kd2 Nc3 19.Qc3 Qa2 20.Ke1+=) 17...Na4 18.Kd2 Nc3 19.Qc3 Qa2 20.Qc2 Qc2 (20...Qa5 21.Qc3 Qa2 22.Qc2 Qa5 23.Qc3=) 21.Kc2+= dc4 22.Bc4 0-0 (22...e5 23.f4+=) 23.Rd1+/- b6? (better 23...e5!?+/-) 24.Kc3 Bb7 25.e4 (25.Rd6 Rc8 26.Kb4 Kf8+-) 25...Rc8 (25...Ba8!?+/-) 26.Rd6+- h6 (26...Kf8+-) 27.Rb6 Ba8 28.Kb4 Kf8 29.Rd6 (29.Ra6 Ke7+-) 29...Ke7 30.Rb6 Rd8?? (30...Kf8 31.Ra6 Ke7+-) 31.g4 Rd4 32.Ra6 Bb7 (better 32...Bd5 33.ed5 ed5+-) 33.Ra7 Rd7 34.b6 Kd6 (34...Kd8 35.Bb5 Re7+-) 35.f4 (35.Bb5!? Re7 36.e5 Ke5+-) 35...f6?? (better 35...Be4 36.Bd3 Bf3+/-) 36.Bb5+- Re7 (36...Rf7 37.Ba6 Kc6 38.Rb7 Rb7 39.Bb7 Kb6 40.Ba8+-) 37.Ba6 (better 37.e5 fe5 38.fe5 Ke5+-) 37...Be4 38.Re7 Ke7 39.b7 Bb7 40.Bb7 Kd6 41.h3 (41.Kc4 g5+-) 41...e5 (41...g5 42.fg5 hg5 43.Kc3+-) 42.fe5 (better 42.f5!?+-) 42...Ke5 43.Bc8 g5? (43...Kf4 44.Ba6 Kg3=) 44.Bf5 Kf4 45.Kc5 Kg3 46.Kd5?? (better 46.Bc2 Kg2 47.Kd6+-) 46...Kh3= 47.Ke6 Kh4 48.Kf6 h5 ½-½. TWW_LONDON - dhruv_2008 (1620), lichess.org, 2021.

9.Nf3 d4 10.ed4+- cd4 11.Bd4 Bd6 (11...b6 12.Be2+-) 12.c5 Bf4 (12...Be7 13.Qc2+-) 13.g3+- Bh6 14.Bc4 (14.Bg2 0-0+-) 14...0-0 15.0-0 (15.Qe2+-) 15...b6 (15...Qe7!?+-) 16.c6+- (16.cb6?! Nbd7+-) 16...Qc7 (better 16...Ne8+-) 17.Be5 Qa7 18.Nc3 (better 18.Qb3+-) 18...Rd8?? (18...Ng4 19.Qa4 Qa4 20.Na4 Ne5 21.Ne5 Bg5+-) 19.c7 Rd2 (19...Nc6 20.bc6 Re8+-) 20.cb8Q (20.cb8N?! Rd1 21.Rd1 Nd7+-) 20...Qb8 21.Bb8 Rd1 22.Rd1 g6 23.Rd8 (23.Rd8 Kg7 24.Rc8+-) 1–0. GuestYZCL – GuestRCRK, freechess.org, 2018.

9.Nc3 0-0 10.Nf3 h6 (10...Bd7 11.Ne5=) 11.Be2 Nbd7 (11...dc4 12.Bc4 b6 13.0-0=) 12.0-0 Qa5 13.bc6 (13.cd5 ed5 14.Qc2 Bd6+=) 13...bc6= 14.Qc2 e5 (14...Ba6 15.d3=) 15.Bb2 (15.cd5 cd5 16.Nb5 e4 17.Bf6 ef3= (worse 17...gf6 18.Nfd4+=)) 15...e4= 16.Ra1 Qc7 17.Ne1 Bd6 18.g3 (18.h3 Ne5=) 18...Ne5 19.cd5 cd5 20.d4 Bh3?? (better 20...ed3 21.Nd3 Bf5=) 21.de5+- Be5 22.f4 (22.Qd2 Qb7+-) 22...Bd6 (22...ef3 23.Bf3 Rb8+-) 23.Qd2 Bb4 24.Qd4?? (24.Nc2 Bc3 25.Bc3 Rc8+-) 24...Bc3? (better 24...Bc5 25.Qd1 Be3 26.Kh1 Rd8+-) 25.Bc3+- Rc8 26.Rc1 Qd7 27.Bb2 (27.Nc2 Bg4 28.Bg4 Qg4+-) 27...Rc1 28.Bc1 1–0. GuestPBQR – GuestTQZL, freechess.org, 2018.

9.d4 Qa5 (9...Be7 10.Nc3=) 10.Bc3 Bb4 11.Qd2 Bc3 12.Qc3 b6 (12...Qa2 13.Bd3=) 13.Qa5 ba5 14.Nf3 (14.c5 cb5 15.Bb5 Bd7=) 14...cb5 (better 14...dc4 15.Bc4 cb5 16.Bb5 Ke7=) 15.cd5 (15.cb5 Nfd7+=) 15...Nd5 (better 15...b4!? 16.de6 Be6 17.Bb5 Ke7-/+) 16.Bb5= Bd7 17.Bd7 (17.Bd3 Bc6=) 17...Nd7 18.0-0 (18.e4 Nf4=) 18...0-0 (18...Ke7 19.Na3=+) 19.Nbd2 Ra8 20.Ne5 (better 20.Ra1=+) 20...a4?? (better 20...Ne5 21.de5 a4-/+) 21.Nd7+- a3 22.Nb3 a2 23.e4 (23.Ra1!? Nb4+-) 23...Nc3 24.f3 Ne2 25.Kf2 Nd4 26.Nd4 a1Q 27.Ra1 Ra1 28.Nc5 e5 29.Ndb3 (29.Nf5 Ra5 30.Nb7 Ra2 31.Kg3 Kf8+-) 29...Ra2 30.Ke3 (30.Kg3 f6+-) 30...f6 (better 30...Rg2!? 31.h3 Rg1+=) 31.Nd2+- Ra3 32.Nd3 g6 33.g3 h5 (33...Kf7 34.f4 ef4 35.gf4+-) 34.h4 f5 (34...Kf7 35.f4 ef4 36.gf4+-) 35.ef5 gf5 36.f4?? (better 36.Nc4 f4 37.gf4 ef4 38.Ke4+-) 36...e4= 37.Ne4 fe4 38.Ke4 Kf7 (38...Kg7 39.f5=) 39.Ne5 (better 39.g4!?+/-) 39...Ke6 40.Nf3 Ra4 (40...Kf6 41.Ne5-/+) 41.Ke3 Kf5 42.Kf2 (42.Ne5 Ra3 43.Kf2 Ke4=) 42...Ra3 (better 42...Ra2 43.Ke3 Kg4-/+) 43.Kg2= Kg4 44.Ne5 Kf5 45.Nf3 Kg4 46.Nh2 Kf5 47.Kh3 (47.Nf3 Ra2 48.Kh3 Ra1=) 47...Rb3 (47...Ke4 48.Kg2=+) 48.Kg2 (48.Nf1 Rd3=) 48...Rb2=+ 49.Kh3?? (better 49.Kg1=+) 49...Rf2-+ 50.g4 hg4 51.Kg3 Ra2 52.Ng4 Ra3 53.Kf2 Kg4 54.h5 Kh5 55.f5 Kg5 56.f6 Kf6 57.Ke2 Ke5 58.Kd2 Kd4 59.Kc2 (59.Ke2 Re3 60.Kd2 Re5 61.Kc2 Rb5 62.Kd2 Rb2 63.Kc1 Re2 64.Kd1 Kd3 65.Kc1 Kc3 66.Kb1 Re1 67.Ka2 Rd1 68.Ka3 Ra1) 59...Rh3 60.Kd2 Rh2 61.Ke1 Kd3 62.Kf1 Ra2 (62...Ke3 63.Kg1 Rf2 64.Kh1 Kf3 65.Kg1 Kg3 66.Kh1 Rf1) 63.Ke1 Rb2 64.Kf1 Ke3 65.Ke1 (65.Kg1 Kf3 66.Kh1 Kg3 67.Kg1 Rb1) 65…Rb1 0-1. afsharian – beckchess, lichess.org, 2018.

9.cd5 ed5 10.Qc2 Be7 11.Nf3 0-0 12.Bd3 Bg4 (12...h6 13.0-0=) 13.Ne5 (13.Bf6 Bf6 14.Bh7 Kh8+=) 13...Bd7 (13...Qc8!?=) 14.Nd7+= Qd7 (14...Nbd7 15.bc6 bc6 16.Qc6+=) 15.Bf6+- Bf6 16.Bh7 Kh8 17.Bf5 Qe7 18.Bd3 Be5 19.0-0 Qh4 20.f4 Bd6 21.Nc3 Rc8? (better 21...Re8!?+-) 22.Nd5+- Qg4?? (22...Re8 23.bc6 bc6+-) 23.Bf5 (23.Bf5 Qh5 24.Rf3+-) 1–0. onur604 (2315) – verdeckel (2025), lichess.org, 2020.

9.Nf3 cb5 10.cb5 Nbd7 11.Ne5 0-0 12.Be2 Qa5 13.Bc3 Bb4 14.Qb3? (better is 14.0-0!?=) 14...Bc3-/+ 15.Nc3? (better is 15.Nd7 Bd2! 16.Nd2 Bd7 17.Bd3-+) 15...Ne5-+ 16.0-0 Bd7 17.Rb1 Ra8 18.g3 Qa3 19.Qd1 Nc4 20.Rb3 Qa1 21.Rb1 Qa5 22.Bc4 dc4 23.Qe2 Rc8 24.d3 (24.Qf3 b6 25.Qf4-+) 24...cd3 25.Qd3 Qc3 (26.Qc3 Rc3-+) 0–1. valpa – Mosselman, HCL–C1956 playchess.de, 2003.

9.Nc3 0-0 10.Nf3 Re8 11.Be2 e5 12.d4 e4 13.Nd2 Bf5 14.c5 Bf8 15.h3 (15.b6 Nfd7=) 15...h6 (15...b6 16.Nb3=) 16.Qb3 White prepares b6 16...Nbd7 (16...b6 17.cb6 Qb6 18.Na4=) 17.b6 (17.0-0 Nb8+=) 17...g5 (17...Nh7 18.Nf1=) 18.Bb2 Qe7 19.h4 (19.Qa4 Bg7+=) 19...g4= 20.g3 (20.Qa4 Bg7=) 20...Nh5 (20...Ra8 21.0-0=) 21.Bd1 (21.0-0 Be6+=) 21...Be6 22.Ne2 (22.Qa4 Rb8=) 22...f5 23.Nf4 Nf4 24.gf4 Bg7 25.Nf1 Ra8 26.Ng3 Kh7 27.Bc2 Kg6 28.Ke2 h5 29.Bc3? (better 29.Ke1!?=+) 29...Nc5!-+ 30.dc5 (30.Nf5 Bf5 (30...Nb3 31.Ne7 Kf6 32.Nc6+=; 30...Kf5?! 31.dc5 Bf6 32.Qb4=+) 31.dc5 Qc5 32.Bg7 Kg7 33.Qb2 Kg6-+) 30...d4 31.Qb1 (better 31.Qb4 dc3 32.Ba4-+) 31...Bc4 32.Ke1 dc3 33.f3 Qc5 34.Kf2 Ra2 35.fe4 Rb2 36.ef5 Kh6 37.Qd1 (37.Qc1 Qd5 (37...Rb6?! 38.Rd1 Bd5 39.Kf1-+) 38.Kg1 Qf3-+ (38...Rb6 39.f6+/-)) 37...Bb3 (37...Rb6 38.f6 Rb2 39.fg7+/-) 38.Qd8 (38.Ne2 Rc2 39.Rg1-+) 38...Rc2 39.Ne2 Bc4 (better 39...g3 40.Kf1 Qe3 41.Qd6 Kh7 42.Qg6 Kg8 43.Qg7 Kg7 44.f6 Kf6 45.Rh2 gh2 46.Kg2 Re2 47.Kh1 Bd5) 40.Qg5 Kh7 41.Qh5 (41.Re1 Kg8 42.f6 Qg5 43.hg5 (43.fg5?? Re2 44.Re2 g3 45.Ke1 Be2 46.Ke2 c2-+) 43...Re2 44.Re2 g3 45.Ke1 Be2 46.Ke2-+) 41...Kg8 42.Qe8 (42.Re1 g3! 43.Kg3 Qe3 44.Qf3 Qd2-+) 42...Qf8 43.Qf8 Kf8 44.Re1 Rd2 45.Rc1 (45.h5 c2 46.h6 Bb2-+) 45...Re2 46.Kg3 Rd2 (46...Re3 47.Kf2 Rh3 48.f6 Bf6 49.Rb1 Bd4 50.Kg2 Bd5 51.Kf1 Rh1 52.Ke2 Bc4) 47.Kg4 c2 48.Rc2 (48.h5-+) 48...Rd1 (better 48...Rc2 49.e4 Rc3-+) 49.Rc4= Rg1 (49...Bf6 50.Ra4 Bd8 51.e4 Bb6 52.e5=) 50.Kf3 (50.Kh5 Bf6 51.Ra4 Rb1+=) 50...Rf1 51.Ke4 (better 51.Ke2 Rh1 52.Ra4=) 51...Rf4?? (better 51...Rb1=+) 52.Kf4+- Bf6 53.Kf3 (53.Rc6! Bh4 54.Rc7 Be1+-) 53...Be5 (53...Bd8 54.Rd4 Bb6 55.Rd7+-) 54.e4 Bd6 (54...Bf6 55.Ra4+-) 55.Rd4 (55.Rd4 Bc5 56.Rd8 Ke7 57.Rb8+-) 1-0. BeepBeepImAJeep (2705) - AstanehChess (2590), lichess.org, 2016.

10.Qb3 Nbd7 11.Nc3 Nc5 12.Qa2 e5 (12...Nce4 13.Qc2=+) 13.cd5 (13.bc6 bc6 14.cd5 cd5=+) 13...cd5=+ 14.Be2 (14.d4 ed4 15.Nd4 Nce4 16.Ne4 de4=+) 14...e4 15.Nd4 Be5 16.Nb1 (16.Nd1 Bg4 17.f3 Bh5=+) 16...Ng4 (16...Bg4 17.f3 Qc7 18.Bc3 Bd4 19.fg4 Bc3 20.Nc3=+) 17.Qc2 (17.h3 Nh6=+) 17...Qd6 (17...Bd6 18.Nc3=+) 18.Bb2 (18.h3 Nh6=) 18...Bd7 19.f4 ef3 20.Nf3 Bg3 (20...Bh2 21.Ne5 Ne5 22.Be5 Qe5 23.Qc5-+) 21.Kf1 Ne4 (21...Rc8 A) 22.hg3?? Ne4 23.Be5 Ne5-+ (< 23...Rc2 24.Bd6 Rc1 25.Ne1-+); B) 22.Ba3 Qh6 23.Bc5-/+) 22.Ba3 Qb6?? (22...Qg6 23.Nc3 Rc8-+) 23.hg3?? (better is 23.Bf8 Kf8 24.hg3 Ng3 25.Ke1=) 23...Rc8-+ 24.Qd3 Ng3 25.Ke1 Nh1 26.Qd5 Be6 27.Qd4 Qc7 28.Qf4 Qf4 29.ef4 Re8 30.Nc3 Ng3 (Black gets in control) 31.Nd4 Bc4 32.Bd6 Ne2 33.Nde2 Re6 34.Bc7 Rh6 35.d4 Rh2 36.g3 Nf6 37.b6?? Ne4! 38.Kd1 Be2 39.Ne2 Rg2 40.d5 Kf8 41.f5 Rf2 42.Bf4 Rf3 43.Kc2 Ke7 44.Nd4 Rc3 45.Kb2 Rc5 46.Kb3 Rd5 47.Kc4 Rd7 48.g4 Nf6 49.Nc6 bc6 50.Kc5 Nd5 51.Bg3 Nb6 (52.Kb6 Rd3-+) 0–1. Jacobi,KH – Littke,H, corr, 1975.

10.Qb3 Nbd7 11.Nc3 Re8 12.d4 =+.

10.Qc2 =+.

10.Be2 cb5 11.cb5 Nbd7 12.d4 =.

10.Be2 dc4 11.Bc4 cb5 12.Bb5 Bd7 13.Bd7 Nbd7 14.0-0 b5 15.Qb3 Qa5 (15...b4 16.Rc1=+) 16.Bc3 (16.Bf6 Nf6 (worse 16...gf6 17.Qd3 Qa6 18.Nc3+/-) 17.Nd4 Qc7=) 16...Qa4=+ 17.Qa4 (17.Qb2!? b4 18.Bf6 Nf6 19.Rc1=+) 17...ba4-/+ 18.Bf6 Nf6 19.Nc3 a3 20.Ra1 Nd5 21.Nb5 (21.Kf1 Ra8-/+) 21…Rb8 (21...Rb8 22.Nfd4 Bc5-/+) 0-1. Mely (2245) - The Schemer (2660), ChessWorld.net, 2016.

10.Be2 dc4 11.Bc4 cb5 12.Bb5 Bd7 13.Bd7 Nbd7 14.0-0 b5 15.d4 Qa8 16.Nbd2 Rb8 17.Qb1 Nd5 18.Nb3 b4 19.Rc1 Rc8 20.Rc8 Qc8 21.Ng5 Bf8?? (Better is 21...N5f6=) 22.Qh7 1–0. Sternik,Ryszard – Babiak,J, Olsztyn, 1994.

10.Be2 Re8 ½–½. Schatz,Hans Ulrich – Frank,Wolfgang (2185), Baunatal, 1998.

11.0-0 cb5 12.cb5 e5 13.Qc2 =.

11.0-0 Qb6 12.Nc3 dc4 13.Bc4 Ne5 (13...Rd8 14.d4=) 14.Ne5+= Be5 15.d4 (15.Na4 Qc7 16.Be5 Qe5 17.bc6 Qa5 18.cb7 Bb7+=) 15...Bd6= 16.Be2 Qc7 17.h3 c5 (17...Bd7 18.Bd3=) 18.Na4 (18.dc5 Bc5 19.Qc2 Ba7=) 18...cd4= 19.Bd4 Bd7 (19...e5 20.Bb6 Qe7 21.Nc3=) 20.Nb6 (20.Bf6 gf6 21.Qd4 Bh2 22.Kh1 Be5 23.Qg4 Kh8+=) 20...Rd8 (20...e5 21.Nd7 Qd7 22.Bb2=) 21.Qa1 Be8? (better 21...e5 22.Rc1 Qb8 23.Nd7 Rd7+=) 22.Rc1+- (22.Bf6?! gf6 23.Na4 Bh2 24.Kh1 Be5=+) 22...Qe7 (better 22...Qb8 23.Bf6 gf6 24.Qf6 Bh2 25.Kh1 Be5+/-) 23.Bf6 (23.Nc8 Rc8 24.Rc8 e5+-) 23...gf6? (better 23...Qf6 24.Qf6 gf6+=) 24.Nc8+- Qd7 25.Nd6 Qd6 26.Qf6 Qd5 (26...e5 27.Qg5 Kf8 28.Qh4+-) 27.Rc4 h5 (27...Ra8+-) 28.Bh5! Qc4 (28...Qh5 29.Qh4 Double attack (29.Qd8 Deflection; 29.Qh4 Decoy; 29.Qd8 Overloading)) 29.Qd8 Qb5 30.Bf3 b6 31.Qb8 Kf8 32.Qd6 Kg7 33.Qg3 Kf8 34.Qd6 Kg7 35.h4 Qc5 36.Qg3 Kf8 (36...Kh7 37.h5+-) 37.h5 b5?? (better 37...Qc3+-) 38.h6 Qg5 (38...Qc3 39.Qd6 Kg8+-) 39.Qg5 (39.Qg5 b4 40.h7 f6 41.Qf6 Bf7 42.h8Q) 1-0. BeepBeepImAJeep (2765) - Isaev_Anton (2430), lichess.org, 2019.

11.0-0 e5 12.c5 Bc5 13.Be5 Ne5 14.Ne5 Bd6 =+.

11.0-0 e5 12.c5 Nc5 13.Be5 Bg4 14.Bd6 Qd6 =.

11.0-0 e5 12.d3 Re8 13.Nc3 dc4 14.dc4 Nc5 15.h3 (15.Na4 e4 16.Nd4 Na4 17.Qa4 c5=) 15...Qe7 16.Na4 Nfe4 17.Nc5 Nc5 18.Qb1 (18.Qd2 Rd8=+) 18...e4 19.Qb2 f6 20.Nd2 Bc7 (20...Rd8 21.Qc2=+) 21.Rd1= Rd8 22.Qa3 (22.b6 Bd6=) 22...b6 (22...Qd6 23.g3 Bb6 24.Qb4=) 23.Bd4= Bd6 (23...Bf5 24.bc6 Qd6 25.Nf1 Qc6 26.Nd2=+) 24.Qb2 (24.bc6 Qc7+=) 24...Bc7 25.Nf1 (25.Bc5 Qc5 26.Ne4 Rd1 27.Bd1 Qe7+/– (27...Qc4?? 28.Bb3 cb5 29.Qc3+-)) 25...Bb7 (25...cb5 26.Qb5 Bd7 27.Bc5 bc5 28.Qb7=) 26.Ra1 (26.Bc5 Qc5 27.Rd8 Bd8=) 26...Ra8 (26...cb5!? 27.Qb5 Bc8=) 27.Ra8+= Ba8 28.Qa1 (28…Bb7 29.Qa7+=). Farleigh,Richard (2200) – Lux,J, World op Philadelphia, 1995.

11.0-0 e5 12.d4 e4=+ 13.Ne5 cb5 14.cd5 Qa5 15.Nd2 b4 (15...Nb6!?=) 16.Qb1+= Rd8 (16...Re8 17.Ne4 Ne4 18.Qe4+/–) 17.Nec4 (17.Nd7 Rd7 18.Ne4 Nd5+-) 17...Qc7 18.Nd6 Qd6 19.Ne4 Ne4 20.Qe4 Nf6 21.Qb1 Nd5 22.Bf3 Be6 23.Rc1 b5 (23...Qe7 24.e4 Nc3 25.Bc3 bc3 26.d5+/– (26.Rc3?! Rd4 27.e5 Rd2=)) 24.Be4 (24.e4 Nc3 25.Bc3 bc3+/–) 24...h5 (24...Nf6 25.Bd3+=) 25.Bd3 Rb8 (25...h4 26.Bb2+/–) 26.Rc5 h4 27.h3 Qa6 28.Bb2 b3 29.Be4 Nf6 30.Bd3 Bc4 31.f3 Bd3 32.Qd3+/– Qa2 33.Qc3 Qb1+= 34.Kf2 Qd1 35.Rc8 Rc8+= 36.Qc8 Kh7 37.Qf5 Kh8 38.Qb5 Qc2 39.Qe2 Qc7 40.Qd3 Qb8 41.e4 Nh5+/– 42.e5 Qb4 43.Ke3 Qe1= 44.Qe2 Qg1 45.Qf2 Qf2 46.Kf2 Nf4 47.Ke3 Ng2 48.Ke4 Kg8 49.Ba3 g6 50.d5 Ne1? 51.d6+- b2 52.Bb2 Kf8 53.Bc3 Ng2 54.f4 (54...Nf4 55.Kf4+-) 1–0. Lehr,Thomas – Seipel,Juergen, Schleswig Holstein–chF, 1989.

10.Nc3 0-0 11.Be2 Nb6 12.bc6 bc6 13.cd5 ed5 14.0-0 Bd7 15.Na4 Na4 16.Qa4 Qc7 17.Bf6 gf6 18.g3 Rb8 19.Bd3 Rb4 20.Qc2 h6 21.Bf5 Bf5 (21...c5!?+=) 22.Qf5+/– Qe7? (better is 22...Be7+/–) 23.Qc8+- Kg7 24.Qc6 Qc7 25.Qd5 Qc5 26.Qc5 Bc5 27.d4 Bd6 28.Nh4 Bc7 29.Rc1 Rb7 30.Nf5 Kg6 31.e4 Bb8 (31...Ba5 32.Rc8 Kh7 33.Kg2+-) 32.Rc8 Kh7 33.d5 Ba7 34.d6 Rb1 (34...Bb6+-) 35.Kg2 Rb2 36.Rc7 Bf2 37.Rf7 Kh8 38.d7 (38.d7 Bb6 39.Kh3+-) 1–0. forsetinn (1975) – gablueskies (1730), gameknot.com, 2013.

10.Nc3 0-0 11.Be2 Qc7 12.d4 (12.bc6!? bc6 13.d4=) 12...dc4+= 13.0-0 Nd5 14.Qb1 (14.Bc4? Nc3 15.Bc3 cb5 16.Be6 Qc3-+) 14...N7b6 15.Ne4 cb5 16.Qb5 Bd7 17.Qb1 Nc8 18.Neg5 g6 19.Ne5 b5 20.Qe4 Kg7 (20...h6 21.Ngf3-/+) 21.Qh4+= h6 22.Ne4 (22.Ngf7 Rf7 23.Nf7 Kf7 24.Qh6 Bc6+=) 22...Be7-/+ 23.Qg3 Be8 24.f4 f6 (24...Qa5 25.Ng4 h5-+) 25.Ng6!+= Kh7? (25...Bg6 26.f5 Double attack (26.f5 Decoy)) 26.Nf8+- Bf8 27.Bd1 (27.Qh4!? Be7 28.Qh3 Bd7+-) 27...b4 Black plans c3 28.Bc2 f5 29.Nd2 c3 30.Nb3 Nf6 31.Qf3 Bc6 32.Qe2 Nd6 33.Nc5 Qf7 34.Qa6?? Bd5?? 35.Qb6 Nc4 36.Qb4+= Ne3 37.Rf2 Nfg4 38.Re2 Ng2 39.Rg2 Bg2 40.Kg2 Ne3 41.Kf2 Nc2 42.Qc3 Na1 43.Qa1= Kg6 44.Nd3 Bd6 45.Qg1 Kh7 46.Ne5 Be5 47.de5 Qb7 48.Qg3 Qb2 49.Kg1 Qe2 50.Qf2 Qg4 51.Qg3 h5 52.Kf2 h4 53.Qf3 Kh6 54.h3 Qg7 55.Qg2?? Qa7-+ 56.Kf1 Qa6?? 57.Kg1= Qa7 58.Kh2 Qe7 59.Qg8 Kh5 60.Qh8 Kg6 ½–½. Koester,Roman (2120) – Rudolph,Peter (2220), Hessenliga, 2007.

10.d4 Bb4 11.Nbd2 Qa5 12.Bd3 dc4 13.Bc4 cb5 14.Bd3 0-0 15.0-0 Nb6 16.Nb3 Qa4 17.Qb1 Nc4 18.Nc5 Qa3 19.Rc1 Nb6 20.Ne4 Nbd5 21.Ne5 Nd7? 22.h3?? (better is 22.Rc8 Rc8 23.Bb2+/–) 22...Ne5 (22...f5!? 23.Bb2 Qa5+=) 23.de5+= Bd7 24.Bb2 Qa8 25.Ng5 (25.Nd6!?+=) 25...g6= 26.h4 Be7 27.Nf3 Nb4 28.Be4 (28.Be2!?+=) 28...Bc6-/+ 29.Rc6? (better is 29.h5!?-/+) 29...Nc6-+ 30.Nd4 (30.h5 Kg7-+) 30...Rc8 (30...Qa6 31.h5 Ne5 32.Bc3-+) 31.h5 Kg7?? (31...Nd4 32.ed4 Ba3 33.Bb7 Qb7 34.Ba3-+) 32.hg6? (32.Nb5 Kf8-/+) 32...hg6 33.g4? Bc5?? 34.Nc6?? Rc6 35.Qd3 Qc8 36.Bc6 Qc6 37.Qd8 Qf3 38.Qf6 Qf6 39.ef6 Kf8 40.Kf1 Ke8 41.Ke2 Kd7 42.Kd3 Kc6 43.f4 b4 44.e4 Kb5 45.Bc1 Ka4 46.Kc2 b3 47.Kb1? Kb4 48.Bb2 Kc4 49.Bc1 Kd3 (49...Kd3 50.e5 Kc4-+) 0–1. Geisensetter,Kurt – Woll,Wilfried, DDR–ch M794 corr, 1985.

10.d4= dc4 11.bc6 Nb6 12.Nbd2 =.

10.Be2 0-0 11.0-0 cb5 12.cd5 Nd5 13.Bb5 Qa5 14.Qa4 Qa4 15.Ba4 Nc5 16.Bb5 Bd7 17.Bd7 Nd7 18.Nd4 Bb4 ½–½. fluors – asoka, net–chess.com, 2015.

10.Be2 0-0 11.Nc3 Qa5 12.0-0 Qc7 13.Qc2 c5 14.b6 Qb6 15.Nb5 Bb8 16.d4 dc4 17.Bc4 Qc6 18.dc5 Qc5 19.Rb1 b6 20.Bb2 Bb7 21.Ba3 Be4 22.Bc5 Bc2 23.Bf8 Bb1 24.Be7 Nc5 25.Nfd4 Be4 26.Nc3 Bb7 27.f3 Nfd7 28.Ncb5 Be5 29.Kf2 Ba6 30.g3 g6 31.Nc6 Bg7 32.Bd6 h5 ½–½. pierred (2845) – asoka, net–chess.com, 2015.

9.Qb3 Qb6 10.Nf3 (10.Be5 Qd8+=) 10...dc4 11.Bc4 cb5 12.Ne5?? (12.Bf6 Qc6 13.Bg7 bc4=) 12...b4?? (12...Qa6 13.Nd7 Nbd7 (13...bc4?! 14.Nf6 gf6 15.Qc3-/+) 14.Bb5 Qa1 15.Bd7 Nd7 (15...Kd7?! 16.Qb7 Kd6 17.Qb8 Ke7 18.Qb4 Kd8 19.Qb8 Ke7 20.Qb4 Kd8 21.Qb8 Ke7=) 16.Qb7 Bd6-+) 13.Nd7 Nfd7 14.Bc3?? (better 14.0-0=) 14...bc3-+ 15.Qb6 (15.Nc3 Qb3 16.Bb3 Bb4-+) 15...Nb6 (better 15...cd2!? 16.Nd2 Nb6 17.Bb5 Nc6 18.Ke2-+) 16.Nc3 (16.Bb5 Nc6 17.Nc3-+) 16…Nc4 0–1. mrkt – Mark van Rooij, itsyourturn.com, 2000.

9.Qb3 Bd6 10.Nf3 0-0 11.Nc3 Qa5 12.Bb2 dc4 13.Bc4 cb5 14.Nb5 Bb5 (14...Bb4 15.Nbd4=) 15.Qb5 Qb5 16.Bb5 Ne4 (16...Na6 17.Ke2+=) 17.Ke2 Rc8 18.Ra1 Rc2 (18...f5!?+=) 19.Bd4+/– h6?? (better is 19...Rc8+/–) 20.Bd3+- e5 (20...Rc7 21.Be4 f5+-) 21.Bc2 ed4 22.Be4 de3 23.de3 Nc6 (23...Kf8 24.Bb7 Ke7 25.Bd5+-) 1–0. Trkn – guest78, ICC, 2004.

9.Qb3 Ne4 10.Nc3 Qa5 (10...dc4 11.Bc4 Qa5 12.Qb1=) 11.Bb2 (better is 11.Qb1 Nf6 12.bc6 Nc6 13.cd5 ed5 14.Nf3=) 11...Bb4 (11...Nc5 12.Qa2 Qa2 13.Na2=) 12.cd5 (better is 12.Ne4!? de4 13.Bg7+/–) 12...Nc5 (12...ed5 13.Ne4 de4 14.Bg7 Bd2 15.Kd1=) 13.Qc2 White terminates the opponent with strong threats 13...ed5 (13...cd5 14.Nf3 f6 15.Kd1=) 14.Nf3 f6 (14...Bg4 15.Be2+=) 15.Be2 (15.bc6 bc6 16.Be2 0-0+=) 15...Bc3 16.Bc3 Qa4 17.Qb2 Qg4 (17...Qb3!?+=) 18.Bf6+/– 0-0 (18...gf6 19.Qf6 Rf8 20.Qd6 Qg2 21.Qb8 Ke7 22.Qe5 Kd8 23.Qg5 Qg5 24.Ng5+/–) 19.Be7+- Qg2?? (better is 19...Na4 20.Qa3 Re8+- (20...Qg2?? 21.Rg1 Qg1 22.Ng1+-)) 20.Rg1 Na4 21.Qe5 (21.Qe5 Qg1 22.Ng1+-; better is 21.Qd4 Qg1 22.Ng1 Rc8+-) 1–0. De Visser,Arno – Duinmaijer, 1981.

9.Qb3 Ne4 10.Be5 Nd6 11.b6 (11.cd5!? cd5 12.d4=) 11...dc4-/+ 12.Qb2 f6 13.Bd6 Bd6 14.Bc4 Bc5 15.Nc3 Qb6 16.Qa2 e5?? (16...Kf7 17.Na4 Qa5 18.Nc5 Qc5 19.Qc2-/+) 17.Nf3?? (better is 17.Bg8 Rg8 18.Qg8 Bf8 19.Qh7+/–) 17...Qa7-/+ 18.0-0 (18.Qb1 b5 19.Bd3 b4=+) 18...Qa2-+ 19.Ba2 Ke7 20.Na4 Bd6 21.Nb6 Be6 22.Be6-/+ Ke6 23.Rb1 Na6 24.d4 Bc7 25.de5 Be5 26.Nc4 Nc5 27.Na5 Ra8-+ 28.Nc4 h6 29.g3 Rc8 30.Nb6 Rc7 31.Kf1 Ne4-+ 32.Rb4 Ng5 33.Nh4 Bd6 34.Rc4 f5 35.f4 Ne4 36.Nf3 Bc5 37.Na4 Be3 38.Rc2 Ba7 39.Nb2 b5 40.Ne5 c5 41.Nbd3 g5 42.Nf3 Rd7 43.Nde5 Rd6 44.Ke2 g4 45.Nh4 c4 46.Nhg6 c3 47.Nd3 Bg1 48.Nge5 Bh2 49.Ke3 Bg1 50.Ke2 Ng3 51.Ke1 Ne4 52.Ke2 h5 53.Rc1 Bd4 54.Ng6 Ng3 55.Ke1 Kf7 56.Nh4 Bf6 57.Ne5 Be5 58.fe5 Re6 59.Rc3 Re5 60.Kd1 f4 61.Rb3 f3 (62.Nf3 gf3 63.Rf3 Nf5-+; 61...Kf6!? 62.Ra3-+) 0–1. Iosif,Daniela – Roth,Christiane, DamenBL2, 1992.

9.Qb3 Ne4 10.Be5 f6 11.Bb8 Qb8 12.bc6 Bc6 13.Nf3 =+.

9.Qb3 Ne4 10.Nf3 dc4 11.Qc4 Nd6 =.

9.Qb3 Be7 10.cd5 cd5 11.Nf3 0-0 12.Be2 Be8 13.0-0 Nbd7 14.Bd4 Nc5 15.Bc5 Bc5 16.d4 Bd6 17.Nc3 Bd7 18.Ra1 Ne4 19.Ne4 de4 20.Nd2 f5 21.Bc4 Rf6 22.f3 ef3 23.Nf3 Kh8 24.b6 Bc6 25.Be6 Bf3 26.gf3 Rg6 27.Kf1 Bh2 28.Qd5 Qb8 29.Ra7 Rg1 30.Ke2 Rg2 31.Kd3 h5 32.Bf5 Qe8 33.Rb7 Bf4 34.Re7 1–0. hal1958 – pdmcguigan, playchess.de, 2002.

9.Nc3 dc4 10.Bc4 cb5 11.Bb5 Bb5 12.Nb5 Qb6 13.Nc3 Nc6 14.Nf3 Be7 15.0-0 0-0 16.Qc2 Rc8 17.Rb1 Qc7 18.h3 Nd8 19.Qb3 Bd6 (better 19...Qd6=) 20.Nb5+/- Qc1 21.Ne1 Qc6? (better 21...Qd2!? 22.Bc3 Bh2 23.Kh2 Qf2+-) 22.Bf6 gf6 23.Nd6?? (better 23.Na7 Qd7 24.Nc8 Qc8 25.d4+-) 23...Qd6+/- 24.d4 f5 25.Nf3 Rb8 26.Qb5 Nc6 27.Rc1 f6 28.Rc5 Kf7 (better 28...f4!?+=) 29.d5+- ed5 30.Rd5 Qe6 31.Qc5 (31.Rf5 Kg7+-) 31...Ne7 (31...Ra8!? 32.Rf5 Kg7+/-) 32.Rd6+- Rc8? (32...Qb3 33.Qd4 Kg8 34.Qf6+-) 33.Qb4 (better 33.Qd4 Nc6 34.Re6 Nd4 35.Nd4 Rc1 36.Kh2+-) 33...Rc1 34.Kh2 Qe4?? (better 34...Rc4 35.Qb6 Qc8 36.Rf6 Kg7+-) 35.Qd4 (better 35.Qb2 Qc4 36.Qf6 Ke8 37.Nd4+-) 35...Qd4+/- 36.Rd4 Ke6 (36...Rb1 37.Kg3+=) 37.Rb4 (37.Rh4 Nc6+/-) 37...Rc7 38.Nd4 Kf7 39.Rb5 The isolani on f5 becomes a target 39...f4 40.ef4 Ng6 41.f5 Ne5 (41...Nf4!?+/-) 42.Ne6+- Rd7 43.Rb7! Rb7 44.Nd8 Ke7 45.Nb7 Kd7 (45...Nd3 46.Kg1+-) 46.Nc5 Kc6 47.Ne4 Kd5 (47...Nd7+-) 48.Nf6 Kd4 49.Ng4 (better 49.Nh7 Ke4 50.g4 Kf4+-) 49...Nf7 50.f3 1-0. BeepBeepImAJeep (2520) - Koki22 (2240), lichess.org, 2017.

9.Nc3 dc4 10.Bc4 cb5 11.Nb5 Be7 12.Nf3 Nc6 13.0-0 0-0 14.Nfd4 (14.Qb1 Na5 15.Bd3 Kh8+=) 14...Nd5 (14...Na5 15.Be2=) 15.f4 Bf6 16.Bd5 ed5 17.Nc6 (17.Qh5!?=) 17...bc6=+ 18.Bf6 Qf6 19.Nd4 c5 20.Nf3 Bb5 21.Rf2 Qd6 22.Qb3 Rb8 23.Qa3 Qc7 24.h3 c4 25.Nd4 Be8 26.Rf1 Qb6 27.Nf5 Kh8?? (27...Qb4 28.Qa7=) 28.Nd6 (28.Qf8) 28...f6 (28...h6 29.f5 Kg8 30.f6=) 29.Ne8?? (better 29.Nc4 Qe6 30.Qd6 Qd6 31.Nd6+-) 29...Re8=+ 30.Qa4 Rb8 31.Qd7 Qb7 32.Qe6 h6 33.Kh2 Qb5 34.Rf3 (34.Ra1 Qb2 35.Ra5 Qd2 36.Rd5 Qe1+=) 34...Re8 35.Qf5 Qb2 (better 35...Qa5!? 36.Rf2 Rd8=) 36.Qd5+- Qc2 37.Rg3 (37.f5 Qe4 38.Qe4 Re4+-) 37...Re7?? (better 37...Qe4 38.Qe4 Re4+-) 38.Qd8+- (38.Qd8 Kh7 39.Qe7+-) 1–0. GuestQFPL – Andreycello, freechess.org, 2017.

9.Nc3 Be7 10.Nf3 0-0 11.Be2 Qc7 12.0-0 e5 13.d4 e4 14.Ne5 Be6 15.Qb3 Nbd7 16.Nd7 Bd7 (16...Qd7 17.c5=) 17.c5 (17.cd5 cb5 18.Qb1 Bd6+=) 17...Bg4= 18.h3 Bf5 (18...Be2 19.Ne2 Ra8 20.Rb1=) 19.Rb1 Qd7 20.Bf1 (20.Bb2 Ra8=) 20...g5 (20...Ra8 21.Bb2=) 21.bc6 bc6 22.Qb7 Qe6? (better 22...g4!?+=) 23.Rb6 Rc8 (better 23...Qd7 24.Qc6 Qc6 25.Rc6 Kg7+-) 24.Ba6 Bh3 (24...Re8 25.Rc6 Qd7+-) 25.Qc8 Qc8 26.Bc8 Bc8 27.Rc6 (better 27.Rb8+-) 27...Be6 28.Rb6 h5 (28...Kg7 29.Rb7 Bd8 30.c6+-) 29.c6 Ne8 (29...Bd6 30.Nb5 Ne8 31.Rb7+- (31.Nd6?! Nd6 32.f3 Nc8+-)) 30.Rb7 (better 30.Rb8 Kf8 31.Nb5 f6+-) 30...Kf8 31.Nb5 Nd6 (31...f5 32.c7+-) 32.Nd6 (32.Nc7 Bf5+-) 32...Bd6 33.Bc3 h4 34.Bb4 (34.Bb4 Bb4 35.Rb4+-) 1-0. BeepBeepImAJeep - fireeee (1975), lichess.org, 2017.

9.bc6?!

9.cd5 Nd5 10.Nf3 cb5 11.Nc3 b4 12.Nd5 ed5 13.Qb3 Nc6 (13...Qa5 14.Be5 Nc6 15.Bb2=) 14.Bb5 (14.Qd5 Qa8 15.Qe4 Be6+=) 14...f6?? (better 14...Qa5 15.Qa4 f6-/+) 15.Qd5+/- Be7 (15...Bc8!? 16.Qh5 g6+/-) 16.Bc4+- Threatening mate... how? 16...Rf8 17.0-0 (17.Qh5 g6 18.Qh7 Bf5+-) 17...Qc7 (17...Bg4 18.Qe4 Qd7 19.Qh7 Bf3 20.gf3+/-) 18.Rc1 (18.Qh5 Kd8+-) 18...Qb6? (better 18...Na5!?+/-) 19.Bd4 Nd4 20.Nd4 (20.ed4?! Qc6 21.Qa5 b6+=; 20.Qd4?! Qd4 21.Nd4 Bd6+=) 20...Bc6?? (better 20...Qc5 21.Qb7 Qc8+-) 21.Qh5 (better 21.Qe6!? Kd8 22.Bb5 Bc5 23.Bc6 bc6 24.Nc6 Kc7+-) 21...g6 22.Qh7 Bc5 (22...Bd7 23.Qg6 Kd8+-) 23.Ne6 Rf7 24.Qg8 Ke7 25.Qg6 (25.d4 Bd6 26.Nf4 Bf4 27.Qf7 Kd8 28.Qf6 Kc7 29.Qf4 Kd7 30.Qf7 Kd8 31.Qf6 Kc7 32.Qe7 Kb8 33.Qf8 Kc7+-) 25...Bb5 (25...Bd6 26.Nd4 Rf8 27.Nf5 Kd8 28.Nd6+-) 26.Bb3 (26.Nc5 Be8 27.Qe4 Kd8 28.Ne6 Kd7+-) 26...Bd6 (26...Ba4 27.Bd5 Bc6+-) 27.Qe4 (better 27.Nd4 Be8 28.Nf5 Kd8 29.Bf7 Bc5 30.Be8 b3+-) 27...Kd7 (27...Bc6 28.Qc4 Bb5+-) 28.Nd4 Bc5 (28...Kd8 29.Bf7 Be5 30.Nb5 Qb5+-) 29.Bf7 Bd4 30.Qe8 Kd6 31.Qe6 (31.ed4 Be8 32.Be8 Qd4-+) 1-0. Jimito100 (2000) - RichardSommer (2045), lichess.org, 2020.

9.Nf3 Qa5 10.Be5+/- Qa7 11.Nc3 Bb4 (11...Be7 12.cd5 ed5 13.Qb1+/-) 12.cd5 cd5 (12...Bc3 13.Bc3 ed5 14.Bd3+/-) 13.Bd3+- 1-0. DEFFM – kokoguest, freechess.org, 2020.

9.Nf3 cb5 10.cb5 Qa5 11.Nc3 Bb4 12.Be2 0-0 13.0-0 Ne4 14.Ne4 de4 15.Nd4 Bd2 16.Nb3 Qa2 (16...Qb4 17.Nd2 Rc8+-) 17.Nd2 (17.Qd2?! Qb3 18.Qd4 f6+-) 17...Rd8 (17...f5 18.Nb3 Qa3 19.Qd4+-) 18.Bc4 Bb5 (18...Qa3 19.Ne4 f6+-) 19.Ba2 Bf1 20.Kf1 1–0. Janek – Midas, internet free game, 2017.

9.Nf3 cb5 10.cb5 Qa5 11.Be5+= Qa8 12.Qc2 Be7 13.Bd3 h6 14.0-0 0-0 15.Rc1 Qa5 16.Qc7 b6? (better is 16...Qa8+=) 17.Qb7+- Bb5 (17...Ba3 18.Rc2 (18.Na3?! Qa3 19.Rc3 Qa1 20.Bf1 Bb5=) 18...Ne4 19.Na3 Qa3 A) 20.Bb8 Qa1 (20...Qd3?! 21.Rc1-/+) 21.Bf1 Bb5-+; B) 20.Bf1+-) 18.Bb5 (18.Qe7?! Bd3 19.Bf6 gf6 20.Qf6 Bg6+=) 18...Qb5 19.Bb8 Bc5 20.d4 Qb2 (20...Bb4 21.Bc7+-) 21.Rf1 Bb4 22.Ne5 (22.Qb6?! Nd7 23.Qb7 Nb8+/–) 22...Ne4 23.Qb6 Nf2 (23...Bc3 24.Qb2 Bb2+-) 24.Bd6 (24.Rf2?! Qb1 25.Rf1 Qb3+-) 24...Qe2 25.Bb4 (25...Nd1 26.Bd2 (26.Bf8?? Ne3 27.Rf2 Qd1 28.Rf1 Qf1) 26...Ne3 27.Be3 Qe3 28.Kh1+-) 1–0. Trkn – guest4290, ICC, 2005.

9.Nf3 cb5 10.cb5 Bd6 11.Be2 =.

9.Nf3 dc4 10.Bc4 cb5 11.Be2 Bd6 12.0-0 0-0 13.Nc3 Attacks the isolani on b5 13...b4 14.Nb5 Bb5 15.Bb5 Qb6 (15...Qa5 16.Qe2=+) 16.Qa4=+ Nc6 17.Bf6 gf6 18.d4 Na7 (18...Ne7 19.Nd2-/+) 19.Bd3 Rc8 20.Nd2 Rc3 21.Be2 (21.Ne4 Rd3 22.Nf6 Kg7 23.Ne8 Kf8 24.Nd6 Qd6 25.Qa7 Qc7=+) 21...Ra3 (21...Qc6 22.Qa7 Ra3 23.d5 Bh2 24.Kh1 Qd5 25.Qd4 Qd4 26.ed4=) 22.Qe8= Kg7 23.Nc4 Qc7 24.Na3 (worse 24.Nd6 Qd6 25.Bh5 Qc7-/+) 24...ba3 (worse 24...Bh2 25.Kh1 ba3 26.Qa4+-) 25.g3 a2?? (better 25...Nc6=) 26.Qa4+- a1Q (26...b5 27.Qa2 b4 28.d5+-) 27.Ra1 (27.Qa1?! b5+-) 27...Nc6 28.d5! ed5 (28...Ne5 29.de6 fe6 30.Qb3+-) 29.Qg4 Kf8 30.Ra8 Ke7 31.Qg8 (31.Qf5 Be5+-) 31...Ke6 32.Qh7 Be5 (32...Ne5 33.Qh3 f5 34.Qh6 f6 35.Re8 Be7 36.Qg7+-) 33.Rc8! Qc8 (33...Qb6+-) 34.Bg4 f5 35.Qf5 (35.Qf5 Ke7 36.Qc8+-) 1–0. DEFFM – GuestFMWV, freechess.org, 2019.

9.Nf3 dc4 10.bc6 Bc6 11.Bc4 Be7 12.0-0 0-0 13.Nc3 Nbd7 (13...Qd6 14.d3=) 14.Bb5 (14.Nd4 Nb6 15.Nc6 bc6=) 14...Bb5 (14...Qb6 15.Bc6 Qc6 16.Qb1=) 15.Nb5 Qa5 16.Nbd4 (16.Qe2 Rc8=) 16...Ra8 (16...Rb8 17.Qb1=) 17.Bc3 (17.d3 Qa2=) 17...Bb4 18.Bb4 (18.Nb3 Qa4=) 18...Qb4 19.Qb1 (19.d3 Ra2=) 19...Qb1=+ 20.Rb1 Ne4 (20...e5 21.Nc2 b6 22.d3=+) 21.Kf1 Ndc5 22.Ne1?? (better 22.Nb3 Nd3 23.Nc1 Nef2 24.Nd3 Nd3 25.Ke2=) 22…Nd2-+ (22...Nd2 23.Kg1 Nb1-+) 0–1. hal1958 – NaoSei, playchess.de, 2003.

9.Nf3 dc4 10.bc6 Nc6 11.Bc4= Be7 12.0-0 0-0 13.d4 Qa5 14.Nbd2 Rd8 15.Qb3 Bc8 (15...b5 16.Bb5 Rb8 17.Bc6 Rb3 18.Nb3=+) 16.Bc3 Qh5 17.Ne5 Ne5 18.de5 Ng4 (18...Nd7 19.Qb5=) 19.h3 (better 19.Nf3!?+=) 19...Ne5=+ 20.Ne4 (20.Qb5!? f6 21.Ra1=+) 20...Nc4-/+ 21.Qc4 Qd5 (21...b5 22.Qc7 Bd7 23.Bb4=+) 22.Qc7 Bf8 (better 22...Bh4 23.Qf4 Qh5=+) 23.Ng5?? (better 23.Nf6 gf6 24.Bf6+=) 23...Qg5-+ 24.f4 Qd5 25.e4 (25.Ba5 Re8-+) 25…Qc5 (25...Qc5 26.Qc5 Bc5 27.Kh2 b6-+) 0–1. GuestPKCH – GuestGHQT, freechess.org, 2017.

9.Nf3 Be7 10.Be2 cb5 11.cb5 0-0 12.0-0 Qa5 The isolani on b5 becomes a target 13.Nc3 Ne4 (13...Rc8 14.Qb3=) 14.Ne4 (14.Qb1 Nd6=) 14...de4 15.Nd4 (better 15.Bc3 Bb4 16.Ng5 Bb5 17.Bb5 Qb5 18.Ne4 Bc3 19.dc3=) 15...Bc5 (better 15...e5!? 16.Nb3 Qa4 17.Be5 Bb5 18.Bb5 Qb5 19.Bb8 Rb8=) 16.Qc2+- f5?? (better 16...b6+-) 17.Nb3+- Qb4 (17...Qd8 18.Qc5 Qe8 19.Qc7+-) 18.Qc5 Qb3 (18...Qc5 19.Nc5 Bc8+-) 19.Qe5 Rf7 (19...Rf6 20.Qb8 Rf8 21.Qc7+-) 20.Qb8 Rf8 21.Qc7 1–0. Janek – MorseG, internet free game, 2017.

9.Nf3 Be7 10.Ne5 cb5 11.cb5 0-0 12.Be2 Ne4 (12...Be8 13.0-0=) 13.0-0 Bf6 (13...f6 14.Nd7 Nd7 15.Nc3=) 14.Nd7 (14.f4!?+=) 14...Nd7=+ 15.d4 Qb6 (15...Qa5!? 16.f3 Qa1 17.fe4 Nb6=+) 16.Nd2= Nd6 Exerts pressure on the isolated pawn 17.Qb3 Ra8 18.Bc3 h6 19.f3 (19.Bd3!?+=) 19...Bg5 (19...Nf5 20.Kf2=+) 20.Kf2 Nf5 21.f4 Bf6 22.g4 Nd6 23.Kg3 (23.Kg2 Be7=) 23...Nf8 (23...h5 24.h3=) 24.h4 (24.Ra1 Ra1 25.Ba1 g5 26.fg5 Bg5=) 24...Ng6 (24...Be7 25.h5=) 25.g5 (25.h5 Nf8=) 25...hg5 (25...Be7 26.Bd3 Ra3 27.Qc2=+) 26.hg5 (26.fg5? Be7 27.Kh3 Nf5 28.Rf5 A) 28...ef5 29.Qd5 Nh4 A1) 30.Kh4? Bg5 31.Kh3 Qh6 (31...Be3?! 32.Bh5 g6 33.Nc4=+) 32.Kg2 Be3-+; A2) 30.Nc4=+; B) 28...Ra3-+) 26...Be7 27.Bd3 Ra3 28.Qb2 Ra4 (28...Nf5 29.Bf5 ef5 30.Nf3=) 29.Qb1 Nf8 (better 29...Nf5!? 30.Bf5 ef5 31.Qf5 Qb5=) 30.Rh1+- g6 31.Qc2 (31.Nf3 Nf5 32.Bf5 ef5+-) 31...Ra3 32.e4?? (better 32.Bb2 Ra8 33.Nf3 Nf5 34.Bf5 ef5 35.Ne5+=) 32...de4-+ 33.Ne4 (33.Be4 Qd4 34.Nb1 Rc3 35.Nc3 Qc3 36.Kg4 Qd4-+) 33...Ne4 34.Be4 Qd4 (34...Qd4 35.Rc1 Bb4-+) 0–1. GuestXZNQ – GuestTLNW, freechess.org, 2019.

9.Nf3 Nb6 10.bc6 bc6 11.Qb3 Be7 12.cd5 cd5 13.Bb5 Nbd7 14.0-0 0-0 15.Bf6 Nf6 16.d4 Ne4 17.Bd3 f5 18.Nbd2 Nd2 19.Nd2 Kh8 20.f4 Bd7 21.Nf3 Bd6 22.g3 Qb8 23.Rb1 Qb3 24.Rb3 Rd8 25.h4 h6 26.Kf2 Kg8 27.Be2 Kf7 28.h5 Kf6 29.Ne5 Be5 30.fe5 Kf7 31.g4 g5 (31...fg4 32.Rb7+=) 32.hg6! Kg6 33.Kg3 fg4 34.Bg4 Kg5 35.Rb6 Re8 36.Rd6 Re7 37.Bh3 Kg6 38.Kh4 Kg7 39.Bg4 Be8?? (better is 39...Bc8+=) 40.Re6 (40.Be6!? Bf7 41.Bd5 Bd5 42.Rd5 Rf7+-) 40...Re6 41.Be6 Bc6 42.Bf5 Be8 43.e4 de4 44.Be4 Kf8 45.d5 Ke7 46.Kg4 Bf7 (46...Kd8 47.d6 Kd7 48.Kf5+-) 47.Kf5 Be8 48.d6 Kd7 49.Kf6 h5 50.Bf5 Kc6 51.Bg6 (better is 51.Ke7 Kd5 52.e6 Ke5+-) 51...Bg6 52.Kg6 (better is 52.Ke7+-) 52...h4= 53.Kf7 h3 54.Ke7 h2 55.d7 h1Q 56.d8Q Qh7 57.Ke6 Qg6?? (better is 57...Qh3 58.Kf7 Qh5 59.Kg8 Qe5=) 58.Qf6+- Qg4 59.Kf7 Kd7?? 60.e6 Kc8 61.e7 Qh5 62.Qg6 Qf3 63.Qf6 Qh5 64.Kg8?? Qe8= 65.Qf8 Kd7 66.Qe8 Ke8 67.Kg7 Ke7 ½–½. orangutandu – chessxx, internet, 2013.

9.Nf3 Nb6 10.cd5 ed5 11.bc6+= bc6 12.Qc2 Bb7 13.Bd3 Qa8 (13...Bd6!?+=) 14.Bf6+- gf6 15.Bh7 (15.0-0 Nd7+-) 15...Ba6 (15...Qa4 16.Nc3 Qa1 17.Qb1 Qb1 18.Bb1+-) 16.Bd3 Bd3 17.Qd3 Nc4 18.0-0 Qc8 19.e4 Ne5? (better 19...Qe6!? 20.Nc3 Ne5 21.Ne5 Qe5+-) 20.Ne5+- fe5 21.ed5 Bd6 (21...cd5 22.Qb5 Ke7 23.Nc3+-) 22.Nc3 (22.Qc4 Kf8 23.Qc6 Qc6 24.dc6 Ke7+-) 22...e4 (22...cd5 23.Qd5 Ke7 24.Rb1+-) 23.Qe4 Kf8 24.h4 Qd8 (24...cd5 25.Qd5 Qe6 26.g3+-) 25.g3 (25.dc6?! Rh4 26.Qf5 Bh2 27.Kh1 Bd6 28.Kg1 Bh2 29.Kh1 Bd6 30.Kg1=) 25...Rg8 (25...cd5 26.Nd5 Rh6+-) 26.dc6 Bg3 (26...Bc5 27.Qf4 Bb6+-) 27.fg3 Rg3 (27...Rg7 28.Rf3 Qd6 29.Nb5+-) 28.Kh2 (28.Kh2 Rg7 29.Nd5 Qd6 30.Rf4+-) 1–0. GuestWVGP – pehee, freechess.org, 2019.

9.Nf3 Be7 10.Be2 0-0 11.0-0 c5 12.d4 b6 13.Nbd2 Bb7 14.cd5 ed5 15.Bc3 c4 16.Qc2 Re8 17.Ne5 Bf8 18.f4 g6 (18...Qc7 19.Ra1=) 19.Bf3+= Bg7 (better 19...Qb8!?+=) 20.Ndc4!+/- dc4 (20...Qe7!?+/-) 21.Bb7+- Qc7 (21...Ne5 22.fe5 Nd5 23.Bd2+-) 22.Bc6 Re7 (22...Rd8 23.Bd2 Ne5 24.fe5+-) 23.Bb4 Re6 24.Qc4 Ne5 (24...Bf8 25.d5 Re5 26.fe5 Qe5 27.Bf8 Qe3 28.Kh1 Kf8 29.d6+-) 25.fe5 Nd7 (25...Ng4 26.d5 Ne3 27.de6 Nc4 28.e7 Qe5 29.e8Q Qe8 30.Be8+-) 26.Bd5 Qc4 27.Bc4 Nf8 (27...Bh6 28.Kf2 Bf8 29.Be6 fe6 30.Bf8 Kf8 31.e4+-) 28.Bf8 (28.Bf8 Bf8 29.Be6 fe6 30.Rf6+-) 1-0. BeepBeepImAJeep (2715) - yankitaspinar (2615), lichess.org, 2020.

10.Bc3 Qc7 =.

10.Nc3 Bb4 11.Qb1 0-0+= 12.Be2 Ne4 13.Qb2 (13.Qc1 Ndc5 14.0-0 Nb3+=) 13...Nc3 (13...Bc3 14.dc3 Nb6 15.cd5 Nd5 16.0-0 Qc3 17.Qa2=) 14.dc3= Be7 15.0-0 Bf6 16.Nd4 (16.Qb4 Qa2 17.Bd3 Re8=) 16...Qc7+= 17.Qa3 (17.Rd1 Rd8+=) 17...c5 (17...Rd8 18.Qa7 c5 19.Nc6+=) 18.Nf3 (18.Nc2 Nb6+=) 18...b6 (18...dc4 19.Bc4 b6 20.Qa4+=) 19.cd5= ed5 20.c4 Bb7 21.Bf6 (21.Qb3 Ra8 22.Bf6 Nf6=) 21...Nf6 22.Nd2 Rd8 Black prepares the advance d4 23.f3 (23.Ra1 d4=) 23...d4 24.e4 (24.Qd3 Qe5 25.Ra1 Nd7=) 24...d3+= 25.Bd1 Nh5 (25...Bc8 26.Qc3+=) 26.Qc3 Qd6 27.Nb3 (27.Re1 Qf4+=) 27...Nf4 28.Rf2 g5 29.Rd2 Ng6 30.Bc2 Ne5 31.Bd3 Nd3 32.Nc1 Qf4 Do you see the mate threat? 33.Rd3 Rd3 34.Nd3 Qe3 35.Kf1 g4 36.Qc2 gf3 37.gf3 Qf3 38.Nf2 Bc8 39.Qd3 Qf6 40.Qg3 Kf8 41.Qb8 Qd8 42.Ke1+= Ke8 43.Qe5 Be6+= 44.Nd1 Qd3 45.Qb8 Ke7 46.Qc7 Kf6 47.Qf4 Ke7 48.Ne3 Bc4 Threatening mate... how? 49.Qc7 Kf8 50.Qb8 Kg7 51.Qe5 Kf8 52.Qb8 ½–½. Staszko,T – Vandorffy,J, corr EU–M–143, 1972.

10.Nc3 Bb4 11.Nd4 cb5 12.cd5= Bc3 13.Bc3 b4 14.Nb3 Qd5? (better is 14...Qa4!? 15.de6 bc3 16.ed7 Bd7 17.dc3 0-0=) 15.Bb4+/– b6 16.Nd4 (16.Qc2!? Bb7 17.f3+/–) 16...Nc5+= 17.Nb5 Kd8 (17...0-0!? 18.d4 Rd8+=) 18.d4+/– Nb7 (better is 18...Na6!? 19.Qc1 Bd7+/–) 19.Qc2+- Ne8 (19...Qd7 20.Ba3+-) 20.e4 (20.Bd3 Na5 21.0-0 Nc6+-) 20...Qg5 (20...Qd7 21.Bd3 Nbd6 22.Nd6 Nd6+-) 21.h4 Qf6 (21...Qf4 22.Rh3 Qb8+-) 22.Qc6 e5 (22...Qf4 23.Bd3 Bd7 24.Qb7 Qc1 25.Ke2 Qb2 26.Ke3 Qb4 27.Qb6 Ke7 28.Rb1 Qb1 29.Bb1+-) 23.Qd5 Bd7 24.Qb7 Bb5 (24...Qc6 25.Qb8 Bc8+-) 25.Qb8 (25.Be7 Qe7 26.Qb8 Kd7 27.Bb5 Ke6 28.Qe5) 25...Kd7 26.Bb5 Ke6 (26...Qc6 27.Qb7 Nc7 28.Bc6 Ke6 29.Qc7 ed4 30.Qe7) 27.d5 1–0. De Cat,Ben (1925) – Stone,Stephen, NATO Chess Championship, 2010.

10.Nc3 Bb4 11.Nd4 Qb6 =.

10.Nc3 Bb4 11.Nd4 e5 12.Nc2 +=.

10.Nc3 Nb6 11.cd5 cd5 12.Be2 Bd6 13.0-0 0-0 (13...Bd7 14.Qb3=) 14.Qb1 (14.Qb3 e5=) 14...Bd7 (14...e5 15.Rc1=+) 15.e4= Be7 16.Bd3 g6 (16...de4 17.Ne4 Nfd5 18.Be5=) 17.Qb2 (17.e5 Nh5+=) 17...Ba3+= 18.Qb3 Qb4 19.Qb4 Bb4 20.Na2 (20.e5 Nh5 21.Ne2 Nc4=) 20...Be7 21.e5 Ne4 (21...Nh5 22.Rb1=) 22.Bd4 (22.Nc3 Nc3 23.Bc3 Nc4=) 22...Nc4=+ 23.Bc4 dc4 24.Rb1 Ra8 25.Nc3 Nc3 26.Bc3 Kg7 27.Kf1 g5 28.g4 Kg6 29.Ke2 Ra3 (29...h5 30.h3=+) 30.Nd4 f6 31.Nc6? (better is 31.b6!?=+) 31...bc6-+ 32.b6 Ra8 33.b7 Rb8 34.Ba5 Bc8 (< 34...fe5 35.Bc7 Rb7 36.Rb7+/–) 35.bc8Q Rc8 36.Rb7 Bc5 (36...Re8 37.Bc3=) 37.ef6 Kf6 38.Rh7 Bd4 (38...Kg6 39.Rb7=) 39.Rh6+= Kf7 40.h4 gh4 41.Rh4 Ra8 42.Rh5 c5 43.Bc3 ½–½. Diener,Rudolf – Yefimov, corr ICCF, 1985.

10.Nc3 Bd6 11.Be2 0-0 (11...dc4 12.Bc4 Nb6 13.Bd3=) 12.0-0 Qc7 (12...dc4 13.Bc4 Nb6 14.Be2=) 13.d4 (13.bc6 bc6 14.cd5 ed5=) 13...dc4 14.Bc4 Nb6 (14...c5 15.dc5 Nc5 16.Na4=) 15.Be2 (15.Bd3 Bd7+=) 15...Nbd5 (15...Bd7 16.Qd3=) 16.Qb3 (16.bc6 bc6 17.Qd2 Bb7=) 16...Nc3 (16...Bd7 17.Nd5 cd5 18.b6=) 17.Qc3 (17.Bc3 cb5 18.Bb4 Bb4 19.Qb4 Bd7=) 17...Nd5 (17...Bd7 18.Rc1=) 18.Qb2 cb5 (18...Bd7 19.Bd3=) 19.Rc1 (19.Bb5 Qe7+=) 19...Qe7 20.Qb5 (worse is 20.Bb5 Ba3 21.Qc2 Bc1 22.Qc1 Bd7-/+). Adam – Gerhardt, corr ICCF, 1974.

10.Bc4 cb5 11.Bf6 (11.Bb5 Bd6 12.0-0 0-0 13.d4 b6 14.Nbd2 Bb7 15.Qe2 Ne4 16.Nc4=; 11.Be2 b4 12.Qa4 Bd6 13.Be5 Be5 14.Ne5 Nd5 15.Nd3 Qh4 16.Qb3+=) 11...Qf6 12.Bb5 Bd6 13.Nc3 Qg6 14.Nh4 Qh6 15.Qa4 Kd8 16.Bd7 +=.

10.Bc4 Nb6 11.Be2 (11.Bf1 Bd7 12.bc6 Bc6 13.Ne5 Ba4 14.Qf3 Qc7 15.Bc3 Bd6 16.Qg3+=; 11.d3 Nc4 12.dc4 Qd1 13.Kd1 Ne4 14.Ke1 cb5 15.cb5 Bd7 16.b6+=) 11...Bd7 12.Qb3 Be7 13.0-0 0-0 14.Bf6 Bf6 15.d4 cb5 16.Bb5 =.

10.Bc4 Be7 11.0-0 (11.bc6 bc6 12.0-0 0-0 13.Qc2 c5 14.d4 Bb7 15.Nbd2 Qc7 16.Rc1=; 11.Qc2 Nb6 12.bc6 Nc4 13.cb7 Bb7 14.Qc4 Qa8 15.Bf6 Bf6 16.Qb5=) 11...0-0 (11...Nb6 12.Be2 Bd7 13.Bf6 Bf6 14.d4 0-0 15.Qb3 cb5 16.Bb5=) 12.bc6 bc6 13.d4 (13.Qc2 Bb7 14.d4 c5 15.Nbd2 Qc7 16.Rc1=) 13...Nb6 (13...Bb7 14.Qc2 c5 15.Nbd2 Qc7 16.Rc1=) 14.Bd3 c5 (better is 14...Nbd5!?= 15.Ne5 Bb7 16.Qf3=; 14...Bb7 15.Bb2 c5 16.dc5+=) 15.dc5+/– Bc5 16.Qc2 (16.Ng5+/–) 16...Be7 17.Bf6 Bf6 18.Bh7 Kh8 19.Be4 Nd5 20.Qe2 g6 21.Rd1 Qa5 22.Qc4 (22.Nd4 Bb7+/–) 22...Ba6 23.Qc2 (23.Qb3 Rd8+/–) 23...Rc8+= 24.Qb3 (24.Qd2 Qd2 25.Nfd2 Kg7+=) 24...Qc5?? (better is 24...Be2 25.Ne1 Be5-/+) 25.Bd5+/– Qd5?? (25...ed5 26.Nd4+/– (26.Qd5?? Qd5 27.Nbd2 Bc3-+; 26.Rd5?? Qd5 27.Qb4 Rc1 28.Ne1 Qd6-+)) 26.Qd5 (better is 26.Rd5 ed5 27.g4 Rc1 28.Kg2+-) 26...ed5+= 27.Nbd2 Rd8 28.Rc1 Rc8 29.Rc8 Bc8 30.Nb3 Kg7 31.Nbd4 Bd7 32.h3 g5 33.g4 Kg6 34.Kg2 Bg7 35.Kg3 f6 36.h4 gh4 37.Nh4 Kf7 38.Nhf5 Bf8 39.Kf4 Kg6 40.Ne2 Kf7 41.Nc3 Bc6 42.e4 de4 43.Ne4 Be4 (43...Ba3!?+/–) 44.Ke4+- Bc5 45.f3 Kg6 46.Kf4 Bb4 47.Nh4 Kf7 48.Kf5 Bc3 49.Ng6 Kg7 50.Ne7 Bb2 51.Ke6 Kh6 52.f4 Kg7 53.f5 Kh6 54.Nd5 (54.Ng6 Bc3+-) 54...Kg5 55.Ne3 (better is 55.Kf7+-) 55...Bd4= 56.Nd5 Kg4?? (56...Bb2 57.Kf7 Bd4+-) 57.Nf6+- Kg5 58.Nd7 Bh8 59.Ne5 Kh5 60.Ng6 Bg7 61.Kf7?? (better is 61.Ne7+-) 61...Kg5= 62.Ke6 Bf6?? (62...Kh5 63.Nf4 Kh6+-) 63.Nf4! Bg7 (63...Kf4 64.Kf6 Deflection) 64.Nd5 Bh8 65.Ne7 Bg7 66.Kf7 (better is 66.Nc6+-) 66...Bf6= 67.Ng8 Kf5 68.Nf6 ½–½. purplegadge (1770) – critilo (1715), gameknot.com, 2014.

10.bc6 Nb6 11.Qc2 (11.Ne5 bc6 12.Nc4 Nbd5 13.Ne5 Qc7 14.Qc1 Bb7 15.Qc2 Be7 16.Nc4=; 11.cb7 Bb7 12.Bd4 Nfd7 13.Nc3 Qc7 14.Nb5 Qc6 15.Nc3 f6 16.Bb6=) 11...bc6 12.Bc4 Nc4 13.Qc4 Bb7 14.Bf6 Qf6 15.Nc3 Ba3 16.0-0+=.

10.bc6 bc6 11.Qc1 Bb4 12.Qc4 c5 13.Bc3 Bc3 14.Nc3 Bb7 15.Be2 0-0 16.d4=.

10.bc6 bc6 11.Qc2 Bd6 12.Bc4 0-0 13.0-0 Bb7 14.d3 c5 15.Nbd2 Qe7 16.Rb1=.

10.bc6 bc6 11.Bc4 Qa5 12.Bc3 Bb4 13.0-0 0-0 14.Qb3 c5 15.Ne5 Ba6 16.Nc6 Qb6 17.Nb4 (worse 17.Bb4 Qc6 18.Ba6 Qa6=+) 17...Bc4 18.Qc4 cb4 19.Bb4 Rb8 20.Ba3 Ne5 21.Qc3 Nd5 (21...Ng6 22.d4+/-) 22.Qe5 Qb1 23.h3 Qb3 24.Bc5 Ra8 25.Bd4 Nf6 26.Qc7 (26.Rc1 Ne8+/-) 26...Qd3 (26...Nd5 27.Qc6 Rd8 28.Ra1+/-) 27.Bf6 gf6 28.Qc3 Qf5 29.Ra1 Rb8 30.f4 Qe4 (better 30...Qg6!?+/-) 31.Qf6+- 1-0. onur604 (2320) - Ostwind (2175), Casual Rapid game, lichess.org, 2021.

10.bc6 bc6 11.Bc4 Bd6 12.d4 Nb6 13.Bd3 Nbd5 14.Nbd2 0-0 15.Ne5 c5 16.Ndc4=.

10.Qb3 0-0 11.Be2 (11.d4! Ne4 (11...Qa5 12.Bc3) 12.c5) 11...e5 12.0-0 dc4 13.Bc4 c5 14.Ng5!? (14.d3!) 14...Qe7 15.Nc3 Nb6 16.Nce4 Nc4 17.Qc4 Ne4 18.Ne4 Be6 19.Qc3 f6. Vodep – Janetschek, 1967.

10.Nc3 0-0 11.cd5 cd5 12.Be2 e5 13.0-0 Qe7 Black plans e4 14.d4 e4 15.Nd2 Nb6 16.Qb3 Be6 (16...Bg4 17.Bg4 Ng4 18.h3 (18.Nd5?? Bh2 19.Kh1 Nd5-+) 18...Bh2 19.Kh1-/+) 17.Bb2 Ra8 18.Ra1 Qd8 (18...Ra1 19.Ba1 Nfd7 20.Bb2=+) 19.Ra8 Qa8 20.h3 h5 21.f3 ef3 22.Bf3 The pressure on the isolated pawn grows 22...h4 (22...Qe8 23.Qd1=) 23.Qc2 Qc8 24.e4 Bf4 25.Qd3 Bd2 26.Qd2 Nc4 27.Qf2 de4 28.Ne4 Ne4 29.Be4 Qd7 30.Bc1 Bd5 (30...Nd6 31.Bd3=) 31.Bd3+= Qe7 32.Kf1 Nd6 33.Ba3 g5 34.Kg1 Qe6 35.Bd6 (35.g4 Nb5 36.Bb5 Qe4=) 35...Qd6= 36.Qf5 Qf4 (36...f6!?=) 37.Qd5 Qe3 38.Kh2 (38.Kf1 Qd3 39.Kf2 Qd2 40.Kf3 Qd1 41.Ke3 Qc1 42.Kd3 b6+=) 38...Qg3= 39.Kg1 Qe3 40.Kh2 (40.Kf1 Qd3 41.Kf2 Qd2 42.Kf3 Qf4 43.Ke2 b6+=) 40...Qg3= 41.Kg1 Qe3 ½-½. onur604 (2320) - comfortable (2330), Casual Rapid game, lichess.org, 2021.

10.Nc3 0-0 11.Be2 e5 12.Qb3 Nc5 Black plans e4 (12...e4 13.Nd4 dc4 14.Bc4+=) 13.Qc2+= e4 (13...Bg4 14.d4 Bf3 15.dc5 Be2 16.Ne2 Bc5 17.Be5 Bb4 18.Bc3 Bc3 19.Nc3-/+) 14.Nd4= Qc7 (14...Bd7!?=) 15.bc6+= bc6 16.cd5 Qa5 17.0-0 cd5 (17...Nd5 18.Ne4 Ne4 19.Qe4 Qd2 20.Bc4+/–) 18.Ncb5+/– Be7?? (better is 18...Qb6 19.Nd6 Qd6+/–) 19.Nc6+- (19.Nc6 Qd8 20.Nd8 Rd8 21.Bf6 gf6 22.d4 ed3 23.Bd3 Nd3 24.Qd3+-) 1–0. Gedigk,Detlef – Markus, corr SOK, 1988.

10.d4 =.

10.Be2 Qc7 11.Nc3 Nb6 A) 12.cd5 cd5 (12...ed5 13.bc6 bc6 14.Na4 Nbd7 15.0-0 0-0 16.Qc2 c5 17.Nc3 Qc6=) 13.Na4 Nbd7 14.Bf6 Nf6 15.0-0 Bd7 16.Qc1 Qc1 17.Rc1 Ke7=; B) 12.d3 0-0 (12...dc4 13.dc4 e5 14.0-0 0-0 15.Qc2 Bd7 16.Rd1 Ra8 17.c5 Bc5=) 13.0-0 dc4 14.dc4 e5 15.Qc2 Bg4 16.Rd1 Ra8 17.c5 Bc5=; C) 12.bc6 bc6 13.cd5 ed5 14.Na4 Nbd7 15.0-0 0-0 16.Qc2 c5 17.Rc1 Qd8=.

10.Be2 Qc7 11.Nc3 dc4 12.Bc4 Nb6 (12...0-0 13.bc6 bc6 14.Qc2 Ba6 15.Ba6 Ra8 16.0-0 Ra6 17.d4 Ng4=; 12...e5 13.bc6 bc6 14.Qc2 0-0 15.0-0 Nb6 16.Bd3 Bg4 17.Ne4 Nbd7+=; 12...c5 13.0-0 Nb6 14.Be2 0-0 15.d4 Rd8 16.Na4 Na4 17.Qa4 cd4=) 13.Bd3 c5 14.0-0 0-0 15.Qc2 c4 16.Be2 e5 17.Rd1 Rd8=.

10.Be2 Qc7 11.Nc3 e5 12.bc6 bc6 (12...Qc6 13.Nb5 0-0 14.Qb3 Bb8 15.0-0 Nc5 16.Qc2 e4 17.Ne5 Qe6+=) 13.cd5 Nd5 (13...cd5 14.Nb5 Qc6 15.Nd6 Qd6 16.0-0 0-0 17.Qc2 Re8=) 14.Ne4 Be7 (14...0-0 15.0-0 c5 16.Qb3 N5f6 17.Nfg5 Ne4=) 15.0-0 0-0 (15...f5 16.Ng3 0-0 17.Qc2= e4=) 16.d4 N5f6 (16...ed4 17.Bd4 Bb7 18.Bc4=) 17.Ng3 (17.Nf6 Bf6 18.Qc2 ed4 19.Bd4 Bb7+-) 17...ed4 (17...Bd6+=) 18.Nd4 Rd8 19.Qc2 c5 20.Ngf5 Bf8 21.Nb5 Qc6 22.Na7 Qe4 (22...Qc7 23.Nc8 Rc8 24.Rd1+=) 23.Bd3 (better 23.Qe4 Ne4 24.Nc8 Rc8 25.Bg7+-) 23...Qg4 (better 23...Qb7!? 24.Nc8 Rc8+-) 24.f3 Qh5 25.Nc8 (better 25.g4!? Qh3 26.Rf2 Ng4 27.fg4+-) 25...Rc8+- 26.g4 Qh3 27.Rf2 Ng4 28.fg4 Qg4 (28...Ra8 29.Bc3 Nf6 30.Bf6 gf6+-) 29.Rg2 Qf3 (29...Qb4 30.Nh6 Kh8 31.Nf7 Kg8 32.Nh6 Kh8 33.Bc3+-) 30.Be4 (better 30.Bg7!? Bg7 31.Qb2 f6 32.Rg7 Kh8 33.Rh7 Kh7 34.Nd4 Kg7 35.Nf3 Rc7+-) 30...Qh5 31.Ng7 (better 31.Bg7 Bg7 32.Qc3 Qd1 33.Kf2 Kf8 34.Qg7 Ke8+-) 31...Bg7 32.Bg7 Nf8 33.Bf8 (better 33.Bb7!? Re8 34.Qa4 Ng6 35.Qe8 Kg7+-) 33...Kf8 34.Bh7 Rc6 (34...Qh4 35.Rg3 Qb4 36.Qf5 Qe1 37.Kg2 Qd2 38.Kh1+-) 35.Rg8 (35.Qa4 Re6 36.Rg8 Ke7+-) 35...Ke7 36.Bf5 Rd6 37.Qe4 Kf6 38.Bg4 Qe5 39.Qe5 (39.Qf3 Ke7 40.Ra8 Qd5+-) 39...Ke5 40.Re8 Kd5 41.Kf2 Rb6 (41...Rh6 42.h3+-) 42.h4 c4 (42...Rb4 43.Bf3 Kd6 44.h5+-) 43.Rc8 Rb4 44.h5 c3 45.Bf3 Ke5 46.Rc3 Kf6 47.Rc6 Kg7 (47...Kg5 48.Kg3+-) 48.Kg3 Rb5 (48...f6 49.Rc7 Kh8 50.Rf7+-) 49.h6 Kh7 (49...Kg8 50.Kf4+-) 50.Be4 f5 51.Bc2 Kg8 52.Kf4 (52.Kf4 Rb8 53.Rc7+-) 1–0. Pandurevic,Miro (2260) – Stubljar,Andrej (2070), 24th Open, Bled SLO, 2003.

10.Be2 Qc7 11.bc6 A) 11...Qc6 A1) 12.Nd4 Qb6 (12...Qc5 13.cd5 Nd5 14.Nb5 0-0 15.d4 Qc6 16.Nd6 Qd6 17.0-0 b6+=; 12...Qa6 13.Nb5 0-0 14.cd5 Nd5 15.N1c3 N7f6 16.0-0 Bd7 17.Qb3 Bb4+=) 13.Nb5 dc4 14.Bc4 0-0 15.0-0 Be7 16.Qc2 Qc6 17.Rc1 Nb6=; A2) 12.cd5 Nd5 13.Nd4 Qb6 14.Nc3 Nc3 15.Bc3 0-0 16.Nb5 e5 17.0-0 Bb8=; B) 11...bc6 B1) 12.cd5 ed5 (12...cd5 13.Nc3 e5 14.Nb5 Qc6 15.Nd6 Qd6 16.0-0 0-0 17.Qc2 Re8=; 12...Nd5 13.0-0 0-0 14.Nc3 Nc3 15.Bc3 c5 16.Qa4 Bb7 17.Qg4 e5=) 13.d4 Ba6 14.Ba6 Qa5 15.Bc3 Qa6 16.Nh4 g6 17.Nf3 0-0=+; B2) 12.Bf6 Nf6 13.d4 dc4 14.Qa4 0-0 15.Qc4 Bb7 16.0-0 c5 17.dc5 Qc5=+; B3) 12.d4 Ba6 (12...dc4 13.Nbd2 Nb6 14.Bc3 Ba6 15.e4 Bf4 16.0-0 0-0 17.Qc2 Bb5=) 13.Nbd2 dc4 14.Qa4 Bb5 15.Qc2 Nb6 16.Bc4 Nc4 17.Nc4 Bc4=.

11.0-0 Qa5 12.Nc3 Nc5 (12...g6 13.Qc2 c5 14.Bb2 Qb4 15.d3 Ng4 16.cd5 ed5 17.Nd5 Qb5; 12...Rd8 13.Qc2 dc4 14.Bc4 Nb6 15.Bd3 c5 16.Ne4 Ne4 17.Be4 f5; 12...Nb6 13.cd5 ed5 14.Qc2 Bd7 15.Bb2 cb5 16.Ra1 Qb4 17.Ba3 Qa5; 12...h6 13.Qc2 dc4 14.Ne4 Ne4 15.Qe4 Rd8 16.bc6 bc6 17.Bc3 Qf5; 12...Re8 13.Qc2 dc4 14.Bc4 Nb6 15.Bd3 Bd7 16.Ne4 Ne4 17.Be4 g6) 13.Qc2 Bd7 14.d4 Nce4 15.c5 Bc7 16.b6 Bb8 17.Bd3 h5.

11.0-0 cb5 A) 12.cb5 Qa5 (12...Nc5 13.Qc2 b6 14.Be5 Bb7 15.Nc3 Be5 16.Ne5 Qc7 17.f4 Ncd7) 13.Bc3 Qa2 14.Bf6 Nf6 15.Nc3 Qa5 16.Qa1 Qb6 17.d4 Bd7; B) 12.cd5 Nd5 (12...b4 13.de6 fe6 14.d4 Nd5 15.Nbd2 N7f6 16.Bd3 Qc7 17.Nc4 Ng4) 13.Nc3 b4 14.Nb5 Be7 15.Qc2 b6 16.Rc1 Bb7 17.Bc4 Qc8.

11.0-0 dc4 A) 12.Bc4 Nb6 (12...Qa5 13.Nc3 Nb6 14.Bd3 Bd7 15.bc6 bc6 16.Qc2 Ra8 17.Rb1 Qc5) 13.Be2 Nbd5 14.Nc3 Bd7 15.bc6 Bc6 16.Qb3 Qc7 17.Rc1 Ra8; B) 12.Bf6 Nf6 (12...Qf6 13.Nc3 Ne5 14.Ne4 Nf3 15.Bf3 Qe5 16.Nd6 Qd6 17.bc6 bc6) 13.Bc4 e5 14.Nc3 e4 15.Ng5 cb5 16.Be2 Bf5 17.f3 ef3; C) 12.bc6 Nb6 (12...bc6 13.Bc4 Qa5 14.Nc3 Ba6 15.Qe2 Ra8 16.Ba6 Qa6 17.Rb1 Nc5) 13.Qc2 bc6 14.Bc4 Nc4 15.Qc4 Bb7 16.Bf6 Qf6 17.Nc3 c5.

11.0-0 Nc5 A) 12.Qc2 cb5 (12...Nce4 13.d3 Nc5 14.Nc3 dc4 15.dc4 Qc7 16.Bb2 Bd7 17.Ra1 Rd8; 12...Bd7 13.Be5 Qe7 14.Nc3 Ra8 15.Bf6 Qf6 16.d4 Ne4 17.Ne4 de4; 12...g6 13.Bd4 Qe7 14.Ne5 cb5 15.cb5 Nfd7 16.f4 f6 17.Nd7 Bd7; 12...Re8 13.Nc3 Bd7 14.d4 Nce4 15.c5 Bb8 16.b6 h6 17.Bd3 Ng5; 12...h6 13.d4 Nce4 14.Nc3 Qa5 15.c5 Bb8 16.b6 Bd7 17.Bd3 Re8) 13.cb5 Bd7 14.Bd4 Qc7 15.Nc3 Rc8 16.Ra1 e5 17.Be5 Be5; B) 12.bc6 bc6 13.Nc3 Ba6 14.cd5 Be2 15.Qe2 ed5 16.d4 Nce4 17.Ne5 Qc7; C) 12.Nc3 Bd7 (12...h6 13.d4 Nce4 14.c5 Bc7 15.b6 Bb8 16.Qc2 Bd7 17.Bd3 Ng5; 12...e5 13.Ne5 Be5 14.d4 Bh2 15.Kh2 Nce4 16.Kg1 Bf5 17.Bb2 Qc7; 12...Qe7 13.Qc2 Bd7 14.d4 Nce4 15.c5 Bb8 16.b6 h6 17.Bb2 Nc3; 12...Nce4 13.d3 Nc3 14.Bc3 cb5 15.cb5 Bd7 16.Qa1 Bb5 17.Qb2 Ba6; 12...g6 13.d4 Nce4 14.c5 Bb8 15.bc6 bc6 16.Qb1 Bc7 17.Bd3 Qe7) 13.d4 Nce4 14.c5 Bb8 15.b6 Qe7 16.Qc2 h6 17.Bb2 Nc3.

11.0-0 Qc7 12.Nc3 (12.h3 cb5 (12...Re8 13.bc6 bc6 14.d4 e5 15.c5 Be7 16.de5 Ne4 17.Bd4 Ndc5; 12...h6 13.Nc3 Nb6 14.bc6 bc6 15.cd5 ed5 16.Qc2 Be6 17.Rb1 Ra8; 12...Ne4 13.d3 Nef6 14.Nc3 Nb6 15.cd5 ed5 16.Qd2 Bd7 17.bc6 bc6; 12...dc4 13.Bc4 e5 14.Nc3 e4 15.Ng5 Ne5 16.Be2 Bf5 17.Qa4 cb5) 13.cb5 h6 14.Bb2 b6 15.Nc3 Bb7 16.d4 e5 17.Qc2 e4; 12.cd5 cd5 (12...ed5 13.Qc2 Re8 14.Nc3 Ne5 15.Ne5 Re5 16.Bd3 Re8 17.f4 Bg4) 13.g3 b6 14.Qc1 Bb7 15.Qc7 Bc7 16.Rc1 Bd6 17.Bb2 Ra8; 12.g3 cb5 (12...h6 13.Nc3 Nb6 14.bc6 bc6 15.cd5 ed5 16.Qc2 Bd7 17.Rc1 Qa7; 12...Qa5 13.Nc3 Nc5 14.Qc2 Bd7 15.d4 Nce4 16.c5 Bc7 17.b6 Bb8; 12...Ne4 13.d3 Nec5 14.d4 Ne4 15.c5 Be7 16.b6 Qb8 17.Nbd2 Ndf6; 12...dc4 13.Bc4 Rd8 14.bc6 Qc6 15.Qe2 b6 16.Nd4 Qc5 17.Be6 Ne5; 12...Re8 13.Nc3 Nb6 14.cd5 ed5 15.bc6 bc6 16.Qc2 Bg4 17.Ng5 g6; 12...Rd8 13.Nc3 Nb6 14.cd5 ed5 15.bc6 bc6 16.Qc2 Bg4 17.Na4 Rb8) 13.cb5 Qa5 14.Nc3 e5 15.Bb2 e4 16.Nd4 Qb4 17.Qc2 Ne5; 12.Bb2 Nb6 (12...cb5 13.cd5 b4 14.de6 fe6 15.Qb3 Nc5 16.Qb4 Nd3 17.Qb3 Nb2; 12...dc4 13.Bc4 Ng4 14.g3 Nde5 15.Ne5 Ne5 16.Be5 Be5 17.d4 Bd6; 12...Rd8 13.Nc3 Nb6 14.cd5 cd5 15.Qb3 Nc4 16.b6 Qc5 17.Na4 Qb4; 12...Re8 13.Nc3 Nb6 14.cd5 ed5 15.bc6 bc6 16.Qc2 Be6 17.Ra1 Rb8; 12...h5 13.Nc3 Nb6 14.cd5 cd5 15.Qb3 Bd7 16.Na4 Rc8 17.Nb6 Qb6; 12...Ne4 13.d3 Nec5 14.Nc3 dc4 15.d4 Nd3 16.Bd3 cd3 17.Qd3 c5; 12...e5 13.bc6 bc6 14.cd5 e4 15.Nd4 Nd5 16.f4 ef3 17.Nf3 N7f6; 12...Nc5 13.Bf6 gf6 14.Nc3 Bd7 15.bc6 bc6 16.Qc2 Na6 17.c5 Nc5; 12...h6 13.Nc3 Nb6 14.cd5 cd5 15.Qb3 Bd7 16.Rc1 Rc8 17.d3 e5; 12...Ng4 13.h3 Nge5 14.cd5 cd5 15.Nc3 Nf3 16.Bf3 Ne5 17.Qe2 Bd7; 12...Qa5 13.cd5 cd5 14.Nc3 Nc5 15.Qc2 Bd7 16.Ra1 Qc7 17.g3 Rc8) 13.Na3 Bd7 14.bc6 bc6 15.Qc2 Ne4 16.d3 Ra8 17.de4 Ba3; 12.d4 dc4 (12...Ng4 13.g3 dc4 14.Nfd2 Bg3 15.hg3 Ne3 16.fe3 Qg3 17.Kh1 Qh3) 13.Bc4 Nb6 14.Bd3 Bd7 15.Nc3 Ra8 16.e4 cb5 17.e5 Bb4; 12.bc6 bc6 13.Nc3 Bb7 14.d4 Ra8 15.c5 Be7 16.Qc2 e5 17.Rb1 e4) 12...Nb6 (12...e5 13.bc6 (13.cd5 e4 14.Nd4 c5 15.b6 Bh2 16.Kh1 Qb6 17.Na4 Qd8) 13...bc6 14.cd5= e4 15.Nd4 Nd5 16.Ne4 Bh2 17.Kh1 Be5; 12...dc4 13.Bc4 Ng4 14.bc6 Bh2 15.Kh1 Nde5 16.Ne5 Ne5 17.Be2 Ng6; 12...Re8 13.d4 dc4 14.Bc4 c5 15.b6 Qb6 16.Nb5 Be7 17.Qc2 Nd5; 12...Ne4 13.Qc2 f5 14.cd5 cd5 15.Rc1 b6 16.d3 Nef6 17.Na4 Qb8) 13.bc6= Nc4 (13...bc6 14.cd5 ed5 15.Qc2 Be6 16.g3 Ra8 17.Rb1 Bg4) 14.cb7 (14.Nb5 Qc6 15.Nd6 Qd6 16.d3 Na5 17.Bc3 Nc6) 14...Qb7 15.Bc4 (15.Qb1 Na3 16.Qb7 Bb7 17.Nb5 Nb5) 15...dc4 16.Qc2 (16.Qa4 Qa6 17.Rb1 Rd8) 16...Qa6 (16...e5 17.Rb1 Qe7) 17.Ne4 (17.Ne2 c3) 17...Ne4 18.Qe4 Bb7 19.Qg4 g6 20.Qh4 f6 21.Bf6 Bf3 22.gf3 Bh2? (better 22...Qa5=) 23.Kh2+- c3 24.Rg1 Qd6 25.Kh1?? (better 25.f4 cd2 26.Bd4+-) 25...Rf6?? (better 25...cd2 26.Qd4 Qd4 27.Bd4 Rc8= (27...Rf3? 28.Kg2 Rf5 29.Rd1+-)) 26.Qf6+- cd2 27.Qd4 (27.Rd1!? Qd5+-) 27...Qc6 28.Qd2 Qf3 29.Rg2 1–0. Agrest,Roman (2160) – Isetoft,Magnus, Scandinavian Chess Tournament, Taby SWE, 2007.

11.0-0 Ne4 A) 12.d3 Ng5 (12...Nef6 13.Nc3 h6 14.Bb2 dc4 15.dc4 Nc5 16.Qc2 Qc7 17.Rd1 Rd8) 13.Nbd2 cb5 14.cb5 Nc5 15.Qc2 Bd7 16.d4 Nce4 17.Ng5 Qg5; B) 12.bc6 bc6 13.Nc3 Ndc5 14.Qc2 Ba6 15.d4 Nc3 16.Bc3 Ne4 17.Ra1 Nc3; C) 12.Nc3 Ndf6 (12...f5 13.d3 Ng5 14.Ng5 Qg5 15.d4 f4 16.c5 Be7 17.e4 Nf6; 12...f6 13.d4 f5 14.c5 Bc7 15.b6 Bb8 16.Qc2 Ndf6 17.Ne5 Nc5; 12...Qe7 13.d3 Nc3 14.Bc3 cb5 15.Qa1 f6 16.cb5 Nc5 17.Qa2 Qc7 ; 12...Re8 13.Qc2 Ndc5 14.bc6 bc6 15.Rb1 Ba6 16.d3 Nf6 17.Na4 Nfd7; 12...Ng5 13.Ng5 Qg5 14.f4 Qf5 15.d4 Nf6 16.c5 Be7 17.Bd3 Qg4; 12...Ndc5 13.Qc2 Nc3 14.Bc3 Ne4 15.bc6 bc6 16.Be5 f6 17.Bd6 Qd6; 12...h5 13.Qc2 Ndc5 14.d4 Nc3 15.Bc3 Ne4 16.Ra1 Qf6 17.Bd3 Nc3; 12...Qc7 13.Qc2 Ndc5 14.bc6 bc6 15.d4 Nc3 16.Bc3 Ne4 17.c5 Be7) 13.d3 Nc3 14.Bc3 cb5 15.cb5 Bd7 16.Qa1 Bb5 17.Rc1 Qe7.

11.Bb2 Qa5 A) 12.cd5 cd5 (12...ed5 13.Qc2 Nc5 14.Nc3 g6 15.Nd4 Ne6 16.Nb3 Qc7 17.bc6 Qc6) 13.0-0 Nc5 14.Nc3 Bd7 15.Qc2 Qc7 16.Rc1 Rc8 17.g3 h6; B) 12.Qc2 cb5 (12...Nc5 13.Nc3 Bd7 14.cd5 cd5 15.0-0 Qc7 16.Rc1 Rc8 17.g3 h6; 12...dc4 13.Qc4 Nb6 14.Qb3 Bd7 15.Nc3 c5 16.Ng5 Ra8 17.0-0 Qb4; 12...e5 13.cd5 cd5 14.Nc3 e4 15.Nd4 Ne5 16.0-0 Bd7 17.Ra1 Qc7) 13.cd5 b4 14.e4 Bc7 15.de6 fe6 16.Bd4 Bb6 17.0-0 Bd4; C) 12.Nc3 Qb4 (12...Nb6 13.cd5 Qb4 14.Qc2 cd5 15.Na2 Qa5 16.0-0 Bd7 17.Ra1 Nc4; 12...dc4 13.bc6 bc6 14.Bc4 Ba6 15.Ba6 Qa6 16.Qe2 Qb7 17.Qd3 Be7) 13.Qc2 dc4 14.0-0 Nc5 15.bc6 bc6 16.Rb1 Ba6 17.Nd4 Rc8; D) 12.bc6 bc6 13.Nc3 Qb4 14.Qc2 dc4 15.0-0 Nc5 16.Rb1 Ba6 17.Nd4 Rc8; E) 12.h4 cb5 (12...dc4 13.bc6 bc6 14.Bc4 Ba6 15.Ba6 Qa6 16.Bf6 Nf6 17.Nc3 Bb4; 12...Re8 13.Nc3 Qb4 14.Qc2 dc4 15.0-0 cb5 16.Nd4 e5 17.Ndb5 Bf8; 12...h6 13.cd5 cd5 14.0-0 Nc5 15.Bf6 gf6 16.Nc3 Bd7 17.Nd4 f5; 12...Ne4 13.Nc3 Ndc5 14.Qa1 Qa1 15.Ba1 Bd7 16.Ne4 Ne4 17.bc6 Bc6; 12...e5 13.Nc3 Qb4 14.bc6 bc6 15.Qb1 Ba6 16.Qa2 Bc4 17.Bc4 dc4; 12...Rd8 13.cd5 cd5 14.0-0 Nc5 15.Bc3 Qb6 16.Bf6 gf6 17.Nc3 f5; 12...Nc5 13.Bf6 gf6 14.bc6 bc6 15.Nc3 Bd7 16.0-0 Ne4 17.cd5 cd5; 12...Nb6 13.Bc3 Qa7 14.Bf6 gf6 15.Nc3 f5 16.cd5 cd5 17.h5 Bd7; 12...g6 13.bc6 bc6 14.cd5 ed5 15.Nc3 Nc5 16.0-0 Qb4 17.Nb5 cb5; 12...h5 13.cd5 cd5 14.0-0 Ng4 15.Nc3 Qc7 16.g3 Nc5 17.Qb1 Bg3) 13.cd5 b4 14.de6 fe6 15.d4 Qa2 16.Qc1 Nb6 17.Nbd2 Bd7; F) 12.h3 cb5 (12...dc4 13.bc6 bc6 14.Bc4 Ba6 15.Ba6 Qa6 16.Bf6 Nf6 17.Qe2 Ra8; 12...Re8 13.Nc3 Qb4 14.Qc2 dc4 15.bc6 bc6 16.0-0 Nc5 17.Rb1 Qb3; 12...Rd8 13.cd5 cd5 14.0-0 Nc5 15.Bc3 Qb6 16.Bd4 Qc7 17.Qc2 b6; 12...Nc5 13.Bf6 gf6 14.bc6 bc6 15.Nc3 Ne4 16.Ne4 de4 17.Nd4 c5; 12...Nb6 13.cd5 cd5 14.Bc3 Qa7 15.0-0 Bd7 16.Bd4 Qa5 17.Nc3 Nc4; 12...h5 13.cd5 cd5 14.Nc3 Qb4 15.Qc2 Nb6 16.Na2 Qa5 17.Bc3 Qa3; 12...Ne4 13.Nc3 Ndf6 14.0-0 dc4 15.Bc4 Qb4 16.Qb3 Qb3 17.Bb3 Nc3) 13.cd5 b4 14.de6 fe6 15.0-0 Nc5 16.Bf6 Rf6 17.d4 Na4; G) 12.0-0 dc4 (12...cb5 13.cd5 b4 14.de6 fe6 15.d4 Nd5 16.Qc2 N7b6 17.Nbd2 Qa4; 12...Nc5 13.Bf6 gf6 14.Nc3 Ne4 15.cd5 cd5 16.Qa1 Qa1 17.Ra1 Kg7) 13.bc6 bc6 14.Bc4 Ba6 15.Qe2 Bc4 16.Qc4 Qd5 17.Qd5 cd5.

11.Bb2 cb5 A) 12.cb5 Nc5 (12...Qa5 13.0-0 Nc5 14.Nc3 Bd7 15.Qc2 Rc8 16.Ra1 Qc7 17.g3 g6; 12...h6 13.Nc3 Qc7 14.0-0 Nc5 15.d4 Nce4 16.Qb3 Bd7 17.Ne4 Ne4; 12...Qe7 13.Nc3 Nc5 14.d4 Nce4 15.0-0 Bd7 16.Ne5 Rc8 17.Ne4 Ne4; 12...g6 13.Nc3 Qc7 14.Qa4 Nc5 15.Qh4 Nfe4 16.Ne4 Ne4 17.Bd3 f5; 12...Re8 13.Nc3 Qc7 14.0-0 Nb6 15.Qb3 Bd7 16.Rc1 Rc8 17.d3 h6; 12...b6 13.Nc3 Bb7 14.0-0 Qe7 15.Qc2 Ra8 16.Ra1 Ra1 17.Ba1 e5) 13.Nc3 Bd7 14.0-0 Qc7 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 Rc8; B) 12.cd5 ed5 (12...b4 13.de6 fe6 14.d4 Nd5 15.Nbd2 N7f6 16.Bd3 b5 17.0-0 Bd7; 12...Nd5 13.Bb5 Qa5 14.Be2 Qa2 15.Qc1 Nc5 16.Nc3 Nc3 17.Bc3 Ne4) 13.Bb5 Nc5 14.Nc3 Bf5 15.0-0 Qb6 16.Qe2 Ra8 17.Nd4 Bg6.

11.Bb2 Nb6 12.cd5 ed5 (12...cd5 13.Qb3 Qc7 14.0-0 Nc4 15.Rc1 e5 16.Bc4 dc4 17.Rc4 Qb8; 12...Nbd5 13.bc6 Qb6 14.Be5 Qc6 15.Nd4 Qb6 16.Bd6 Qd6 17.Nc3 Nc3; 12...cb5 13.Bb5 Nbd5 14.Nc3 Qb6 15.Qa4 Bd7 16.Nd5 Nd5 17.Bd7 Qb2) 13.Qc2 Bd7 14.bc6 Bc6 15.Ne5 Ba4 16.Qf5 Qc8 17.Qc8 Rc8.

11.Bb2 Nc5 A) 12.cd5 cd5 (12...ed5 13.Nc3 Nfe4 14.0-0 Bg4 15.bc6 bc6 16.Qc2 Qc7 17.h3 Bh5) 13.Nc3 Bd7 14.0-0 Qc7 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 Rc8; B) 12.0-0 cb5 (12...Bd7 13.Nc3 Qe7 14.bc6 bc6 15.d4 Nce4 16.Bd3 Nc3 17.Bc3 dc4; 12...Qe7 13.Nc3 Bd7 14.bc6 bc6 15.d4 Nce4 16.Bd3 c5 17.cd5 ed5; 12...Qa5 13.Bf6 gf6 14.Nc3 Ne4 15.cd5 cd5 16.Qa1 Qa1 17.Ra1 Kg7; 12...Qc7 13.Bf6 gf6 14.Nc3 Ne4 15.bc6 bc6 16.Qc2 Ng5 17.g3 Nf3) 13.cb5 Bd7 14.Nc3 Nfe4 15.Qc2 Qb6 16.Ra1 Rc8 17.Nd4 Nc3; C) 12.bc6 bc6 13.Nc3 Bb7 14.cd5 ed5 15.d4 Nce4 16.Qc2 Qb6 17.Ne5 Ba6; D) 12.Qc2 cb5 13.cb5 Bd7 14.Ne5 Qe7 15.Nd7 Qd7 16.Nc3 Ra8 17.0-0 Qc7; E) 12.Nc3 Nce4 (12...Nfe4 13.0-0 Bd7 14.bc6 bc6 15.Qc2 Qe7 16.Ne4 Ne4 17.d3 Nc5; 12...Qa5 13.Qc2 Bd7 14.cd5 cd5 15.0-0 Qc7 16.Ra1 Nce4 17.Bd3 Rc8; 12...Bd7 13.d4 Nce4 14.c5 Bb8 15.Qb3 cb5 16.Bb5 Bb5 17.Qb5 Qe7; 12...dc4 13.Bc4 Qa5 14.bc6 Qb4 15.Nb5 Qc4 16.Nd6 Nd3 17.Kf1 Qc6) 13.Ne4 Ne4 14.bc6 bc6 15.0-0 Qb6 16.Qa1 f6 17.Rb1 Qc7.

11.Bb2 Ne4 A) 12.0-0 cb5 (12...f6 13.Nd4 Ndc5 14.d3 Ng5 15.f4 e5 16.fg5 ed4 17.ed4 Ne6; 12...dc4 13.bc6 bc6 14.Nc3 Nc3 15.Bc3 Nb6 16.Qc2 Nd5 17.Bc4 Nc3; 12...Ndf6 13.d3 Nc5 14.Nc3 dc4 15.dc4 Qc7 16.Qc2 h6 17.Rd1 Rd8; 12...Nb6 13.d3 Ng5 14.Nbd2 f6 15.Qb3 cb5 16.cb5 Bd7 17.Ra1 Nf3; 12...Qa5 13.d3 Nec5 14.Nc3 Rd8 15.Qa1 Qa1 16.Ra1 Nb3 17.Ra8 Nb6) 13.cb5 Qb6 14.Qc2 f6 15.Nd4 e5 16.Qb3 Ndc5 17.Qd5 Kh8; B) 12.Qc2 f5 (12...Ndf6 13.Nc3 Bd7 14.bc6 Bc6 15.cd5 ed5 16.0-0 Qe7 17.Nd4 Ra8; 12...Ndc5 13.d4 Qa5 14.Nc3 Nc3 15.Bc3 Qa4 16.Qa4 Na4 17.Ba5 dc4; 12...Re8 13.d3 Bb4 14.Nc3 Nc3 15.Bc3 Qa5 16.Bb4 Qb4 17.Qd2 Qb1; 12...cb5 13.cd5 ed5 14.Nc3 Qc7 15.Bb5 Ne5 16.Qb3 Nc3 17.Bc3 Nf3; 12...Qb6 13.Nc3 Ndf6 14.0-0 Nc3 15.Qc3 cb5 16.cb5 Bd7 17.Ra1 Rc8; 12...f6 13.Nc3 Nc3 14.Bc3 Nc5 15.0-0 cb5 16.cd5 ed5 17.Bb5 Bd7; 12...g6 13.Nc3 Ndf6 14.0-0 Bd7 15.d3 Nc5 16.d4 Nce4 17.bc6 bc6) 13.Nc3 Qc7 14.bc6 bc6 15.0-0 Nc3 16.Bc3 Ba6 17.d3 dc4; C) 12.Nc3 Nc3 (12...Ndc5 13.0-0 Nc3 14.Bc3 Ne4 15.Qb3 Bd7 16.Ra1 dc4 17.Bc4 Nc3; 12...f5 13.0-0 Ndc5 14.Qc2 Bd7 15.Ra1 Nc3 16.Qc3 Qe7 17.bc6 Bc6; 12...f6 13.Nd4 Nc3 14.Bc3 Ne5 15.cd5 cd5 16.Qb3 Qc7 17.d3 Bd7; 12...h6 13.0-0 Ndc5 14.Qc2 Bd7 15.Ne4 de4 16.Ne5 Qc7 17.Nd7 Qd7) 13.Bc3 cb5 14.cd5 b4 15.de6 bc3 16.ed7 Bd7 17.dc3 Qc7.

11.Bb2 Qe7 A) 12.0-0 cb5 (12...dc4 13.bc6 Nb6 14.Bd4 Qc7 15.cb7 Bb7 16.Nc3 Bf3 17.Bf3 Bh2; 12...Nc5 13.Nc3 Bd7 14.bc6 bc6 15.d4 Nce4 16.Qc2 Nc3 17.Bc3 Ne4; 12...Ng4 13.Nc3 Nde5 14.Ne5 Ne5 15.c5 Bc7 16.b6 Bb8 17.Qb3 Nd7; 12...Nb6 13.cd5 cd5 14.Qb3 Bd7 15.Rc1 Ne4 16.Nc3 Rc8 17.d4 Qf6) 13.cd5 b4 14.de6 Qe6 15.Nd4 Qd5 16.Nb5 Ne5 17.Nd6 Qd6; B) 12.Qc2 Nc5 (12...cb5 13.cd5 ed5 14.Bb5 Qe4 15.Bd3 Qg4 16.0-0 Ne4 17.h3 Qg6; 12...dc4 13.bc6 Nb6 14.Bd4 Nbd5 15.Ne5 bc6 16.Nc4 e5 17.Nd6 ed4; 12...Ng4 13.Nd4 c5 14.Bg4 cd4 15.Bd4 e5 16.Ba7 Nf6 17.Be2 dc4; 12...h6 13.Nc3 Nb6 14.bc6 bc6 15.cd5 ed5 16.Nd4 Bd7 17.0-0 Nc4) 13.Nc3 Bd7 14.bc6 bc6 15.d4 Nce4 16.Bd3 Rb8 17.0-0 c5; C) 12.cd5 ed5 (12...cd5 13.Nc3 Nc5 14.0-0 Bd7 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 Rc8) 13.Nc3 Nc5 14.0-0 Bg4 15.bc6 bc6 16.Nd4 Be2 17.Qe2 Ra8; D) 12.bc6 bc6 13.cd5 ed5 14.Nd4 Ne5 15.Qc2 c5 16.Nb5 Nc6 17.Nd6 Qd6; E) 12.Nc3 Nb6 13.cd5 cd5 14.Na4 Nc4 15.Bc4 dc4 16.Nb6 Qc7 17.Nc8 Rc8.

11.Bb2 Re8 A) 12.0-0 Nb6 (12...cb5 13.cd5 Nd5 14.e4 Nf4 15.Bb5 Qb6 16.Nc3 Rd8 17.d4 Nf6; 12...Qc7 13.Nc3 Nb6 14.cd5 ed5 15.bc6 bc6 16.Qc2 Bd7 17.Ra1 Rb8; 12...Nc5 13.Nc3 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 Nd5 17.Nd5 cd5; 12...dc4 13.bc6 bc6 14.Na3 c3 15.dc3 Nb6 16.Qc2 Nfd5 17.Rd1 Qe7; 12...e5 13.bc6 bc6 14.cd5 Nd5 15.Nc3 e4 16.Nd4 Nc5 17.Nd5 cd5; 12...h5 13.Qc2 Nc5 14.Nc3 Nfe4 15.Ra1 Nc3 16.Bc3 Ne4 17.bc6 bc6) 13.cd5 ed5 14.Qc2 c5 15.d4 c4 16.Nc3 g6 17.Ra1 Bf5; B) 12.Nc3 Nb6 13.d3 Qc7 14.0-0 Bd7 15.bc6 bc6 16.h3 h6 17.Qd2 Ra8.

11.Qc2 Qa5 A) 12.Bc3 Qb6 (12...Qc7 13.0-0 cb5 14.cb5 e5 15.h3 e4 16.Nd4 Ne5 17.Rc1 Be6) 13.cd5 ed5 14.0-0 Re8 15.Bb2 cb5 16.Na3 b4 17.Nb5 Nc5; B) 12.Bb2 cb5 (12...e5 13.cd5 cd5 14.0-0 e4 15.Nd4 Ne5 16.Nc3 Bd7 17.Ra1 Qc7; 12...dc4 13.Qc4 Nb6 14.Qb3 cb5 15.Bb5 Bd7 16.Nc3 Rc8 17.Bd3 Bc6; 12...Nc5 13.0-0 cb5 14.cb5 Bd7 15.Be5 Nce4 16.Nc3 Rc8 17.Bd6 Nd6) 13.cb5 Nc5 14.Nc3 Qc7 15.0-0 Bd7 16.Rc1 Rc8 17.g3 h6.

11.Qc2 cb5 A) 12.cb5 Qa5 (12...b6 13.Nc3 Bb7 14.0-0 Qc7 15.Bb2 Ra8 16.Rc1 Nc5 17.g3 Nfe4; 12...Ne4 13.0-0 Qa5 14.Bd4 e5 15.Bb2 Ndf6 16.d3 Nf2 17.Rf2 Ng4; 12...e5 13.0-0 e4 14.Nd4 Ne5 15.h3 Be6 16.Nc3 Qd7 17.Bb2 Rc8; 12...Re8 13.0-0 h6 14.Nc3 Nb6 15.Rc1 Qc7 16.Qd1 Ba3 17.Rc2 Qe7; 12...h6 13.0-0 Qe7 14.Rc1 e5 15.Nc3 e4 16.Nd4 Nc5 17.g3 Bd7; 12...Nc5 13.0-0 Bd7 14.Bd4 Qc7 15.Nc3 Rc8 16.Bf6 gf6 17.Rc1 Kg7; 12...g6 13.0-0 b6 14.Qc6 Nb8 15.Qc3 Nbd7 16.Qc6 Nb8 17.Qc3 Nbd7; 12...Qe7 13.0-0 b6 14.Nd4 Nc5 15.Nc6 Qc7 16.f4 Bb7 17.Bf6 gf6) 13.Bb2 Nc5 14.Nc3 Bd7 15.0-0 Qc7 16.Rc1 Rc8 17.g3 h6; B) 12.cd5 Qa5 (12...ed5 13.Nc3 b4 14.Nb5 Nc5 15.Nd6 Qd6 16.Bd4 b6 17.0-0 Bg4; 12...Nd5 13.Nc3 b4 14.Nb5 Bc5 15.0-0 f5 16.Rc1 b6 17.d4 Be7) 13.Bb2 b4 14.e4 b3 15.Qb3 Ne4 16.de6 Ndc5 17.Qb5 Qa2.

11.Qc2 dc4 A) 12.Qc4 cb5 13.Qb5 Nc5 14.Ne5 Nfe4 15.0-0 b6 16.Qb4 f6 17.Nf3 Bb7; B) 12.Bc4 cb5 (12...Qc7 13.Nc3 Nb6 14.Bd3 Bd7 15.bc6 bc6 16.0-0 Ra8 17.Rc1 e5; 12...Nb6 13.Bd3 Nbd5 14.Bf6 Qf6 15.Bh7 Kh8 16.Be4 cb5 17.Nc3 Nc3; 12...Qa5 13.Bc3 Qb6 14.Bd4 Qc7 15.Nc3 e5 16.Ba7 b6 17.bc6 Qa7; 12...Nd5 13.bc6 bc6 14.0-0 Nb4 15.Qb2 e5 16.Nc3 Nf6 17.Qb1 g6; 12...h5 13.bc6 bc6 14.0-0 Nb6 15.Bd3 Nbd5 16.Bf6 Qf6 17.Qc6 Rd8) 13.Bb5 Qa5 14.Bf6 Nf6 15.Nc3 Bb4 16.Nd4 e5 17.Nb3 Qb6; C) 12.bc6 Nb6 (12...bc6 13.Bc4 Qa5 14.Bc3 Qh5 15.Be2 Qg6 16.Qg6 hg6 17.Bb2 Bb7) 13.0-0 bc6 14.Bc4 Bb7 15.Be2 Nbd5 16.Nc3 Nb4 17.Qb2 c5.

11.Qc2 Ne4 A) 12.cd5 ed5 (12...cd5 13.0-0 f6 14.Nc3 Ndc5 15.Rc1 Qb6 16.d4 Nc3 17.Bc3 Ne4) 13.Nc3 Ndc5 14.bc6 bc6 15.d4 Nc3 16.Bc3 Ne4 17.0-0 Bf5; B) 12.Nc3 Ndc5 (12...Ndf6 13.0-0 Re8 14.bc6 bc6 15.Rb1 Qc7 16.Ne4 Ne4 17.d3 Nc5; 12...Ng5 13.Ng5 Qg5 14.0-0 Nf6 15.f4 Qg6 16.Qg6 hg6 17.Bb2 Bd7; 12...f5 13.0-0 Ndf6 14.cd5 cd5 15.Ne4 fe4 16.Ne5 Nd7 17.f4 Ne5; 12...Nc3 13.Bc3 cb5 14.cb5 Nc5 15.0-0 Bd7 16.Be5 Qb8 17.Rc1 b6; 12...Qa5 13.0-0 f5 14.Ne4 de4 15.Nd4 Nc5 16.bc6 bc6 17.f4 ef3; 12...Nef6 13.0-0 Qc7 14.Bb2 Nb6 15.bc6 bc6 16.cd5 ed5 17.Rc1 Nc4) 13.d4 Qa5 14.0-0 Nc3 15.Bc3 Qa4 16.Qb2 Ne4 17.Ra1 Nc3; C) 12.Bb2 Ndf6 (12...f5 13.Nc3 Ndf6 14.0-0 Qc7 15.bc6 Ng4 16.g3 bc6 17.d3 Nc5; 12...Qa5 13.Nc3 Ndf6 14.0-0 Qc7 15.Ra1 Nc3 16.Qc3 cb5 17.cb5 Qc3; 12...Re8 13.Nc3 Ng5 14.Ng5 Qg5 15.0-0 Nf6 16.f4 Qg6 17.Qg6 hg6; 12...cb5 13.cd5 Ndf6 14.Bf6 Nf6 15.de6 Be6 16.Bb5 Qa5 17.Nc3 Rc8; 12...f6 13.Nc3 Nc3 14.Bc3 Nc5 15.0-0 cb5 16.cd5 ed5 17.Nd4 Ne4) 13.Nc3 Bd7 14.bc6 bc6 15.Ne4 Ne4 16.0-0 f6 17.d3 Nc5; D) 12.bc6 bc6 13.Nc3 Ndf6 14.Ne4 Ne4 15.0-0 f6 16.d3 Ng5 17.c5 Bc7; E) 12.0-0 cb5 (12...f5 13.Nc3 Ndf6 14.bc6 bc6 15.cd5 cd5 16.d3 Nc3 17.Bc3 Qc7) 13.cb5 f6 14.Nc3 Ndc5 15.d4 Nc3 16.Bc3 Ne4 17.Rc1 Qc7.

11.Qc2 e5 12.Nc3 (12.bc6 bc6 13.cd5 cd5 14.0-0 e4 15.Nd4 Nc5 16.Nb5 Ba6 17.N1c3 Qb8; 12.cd5 cd5 13.0-0 e4 14.Nd4 Nc5 15.h3 Bd7 16.Nc3 Qb6 17.Qa2 Be6) 12...Nc5 (12...Qc7 13.Bb2 Nb6 14.bc6 bc6 15.cd5 cd5 16.h3 Bd7 17.0-0 Na4; 12...e4 13.Nd4 Ne5 14.bc6 bc6 15.cd5 cd5 16.0-0 Bg4 17.Bg4 Neg4; 12...Qa5 13.0-0 e4 14.Nd4 Qc7 15.bc6 bc6 16.cd5 cd5 17.Ndb5 Bh2) 13.bc6 bc6 14.cd5 e4 15.Nd4 cd5 16.h3 Ba6 17.Ncb5 Nd3.

11.Qc2 Re8 A) 12.Nc3 Ng4 (12...Nb6 13.cd5 ed5 14.bc6 bc6 15.0-0 h6 16.Qb3 Bg4 17.Rb1 Bc7; 12...Qc7 13.0-0 Nb6 14.bc6 bc6 15.cd5 ed5 16.Bb2 Be6 17.Ra1 Rb8; 12...Nc5 13.0-0 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 Nd5 17.Nc6 Qc7; 12...h6 13.0-0 Nb6 14.e4 e5 15.bc6 bc6 16.cd5 cd5 17.Rb1 Qc7; 12...c5 13.0-0 Nb6 14.d3 e5 15.Bb2 Bd7 16.Ra1 e4 17.de4 dc4; 12...dc4 13.Bc4 Nb6 14.Bd3 c5 15.Ne4 Ne4 16.Be4 f5 17.Bd3 Qc7) 13.0-0 Qc7 14.g3 h6 15.Bb2 Nb6 16.bc6 bc6 17.Nd4 Nf6; B) 12.bc6 bc6 13.cd5 cd5 14.Nc3 Qa5 15.0-0 Ba6 16.Ba6 Qa6 17.Bb2 Nc5; C) 12.0-0 Qc7 (12...e5 13.Nc3 e4 14.Nd4 dc4 15.bc6 bc6 16.h3 Ba6 17.Qa4 Qc8; 12...Nc5 13.Nc3 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 Nd5 17.Nc6 Qc7; 12...dc4 13.bc6 bc6 14.Bc4 Qa5 15.Bd4 Ba6 16.Ba6 Qa6 17.Nc3 e5; 12...Ng4 13.h3 Ngf6 14.Nc3 Nb6 15.bc6 bc6 16.e4 e5 17.cd5 cd5; 12...h6 13.Nc3 Nb6 14.bc6 bc6 15.c5 Bc5 16.Rb1 Bd6 17.d4 Qc7; 12...c5 13.Bb2 Nb6 14.Na3 e5 15.cd5 e4 16.Ng5 Nbd5 17.f3 Qc7; 12...g6 13.Nc3 Qc7 14.Bb2 e5 15.bc6 bc6 16.cd5 e4 17.Nd4 Nd5; 12...Qa5 13.Nc3 h6 14.Bb2 Qc7 15.bc6 bc6 16.d4 e5 17.c5 Be7; 12...Qb6 13.Nc3 Qc7 14.Rb1 dc4 15.Bc4 Ng4 16.h3 Nde5 17.Ng5 Nf6) 13.Rc1 cb5 14.cd5 Qc2 15.Rc2 b4 16.de6 fe6 17.d4 Nb6.

11.Qc2 g6 A) 12.0-0 cb5 (12...e5 13.cd5 cd5 14.Bb2 Re8 15.Rc1 e4 16.Nd4 Nc5 17.h3 Bd7; 12...Ng4 13.h3 Ngf6 14.Nc3 c5 15.Bb2 dc4 16.Bc4 Nb6 17.Na4 Na4; 12...Qa5 13.Nc3 Rd8 14.Bb2 dc4 15.bc6 bc6 16.Bc4 Ne5 17.Ne5 Qe5; 12...dc4 13.bc6 bc6 14.Bc4 Nb6 15.Be2 Bb7 16.Nc3 Qc7 17.Ne4 Ne4; 12...Qc7 13.Nc3 e5 14.bc6 bc6 15.cd5 cd5 16.Qa2 Qc6 17.Nb5 Bb7; 12...Ne4 13.Nc3 Ndc5 14.bc6 bc6 15.Rb1 Ba6 16.d3 Nc3 17.Bc3 Qc7; 12...Nc5 13.Bd4 Qe7 14.Ne5 cb5 15.cb5 Nfd7 16.f4 f6 17.Nd7 Bd7; 12...Qe7 13.Nc3 Nb6 14.bc6 bc6 15.cd5 ed5 16.Qb3 Bc7 17.Bb2 Be6; 12...Kg7 13.Nc3 Nc5 14.d4 Nce4 15.c5 Bb8 16.bc6 bc6 17.Bd3 Bc7; 12...Re8 13.Nc3 Qc7 14.Bb2 e5 15.bc6 bc6 16.cd5 cd5 17.Qb1 Qb6) 13.cb5 Re8 14.Nc3 e5 15.Rc1 Nb6 16.d4 Bf5 17.Qb3 e4; B) 12.Nc3 dc4 (12...Nc5 13.d4 Nce4 14.c5 Bb8 15.b6 Nc3 16.Bc3 Ne4 17.0-0 Bd7; 12...c5 13.0-0 b6 14.cd5 ed5 15.Bb2 Ne5 16.Ra1 Bf5 17.d3 Re8; 12...Ng4 13.0-0 Qc7 14.h3 Nh2 15.Nh2 Bh2 16.Kh1 Bd6 17.Bb2 Nb6; 12...Qe7 13.0-0 c5 14.Bb2 dc4 15.Bc4 Nb6 16.Be2 e5 17.Ng5 Bf5) 13.bc6 Qa5 14.Na4 bc6 15.Qc4 Bb7 16.0-0 Ra8 17.Nc3 Ne5; C) 12.cd5 cd5 (12...ed5 13.bc6 Qc7 14.Nd4 bc6 15.Qc6 Qb8 16.Nb5 Be7 17.0-0 Bb7) 13.0-0 Qe7 14.Nc3 e5 15.Rc1 Nc5 16.d4 ed4 17.Nd4 Bd7.

11.Nc3 Nb6 A) 12.cd5 cd5 (12...ed5 13.0-0 Be6 14.Qc2 Qc7 15.g3 Ra8 16.bc6 bc6 17.Rb1 Bg4) 13.0-0 Qc7 14.Qb1 Nc4 15.b6 Qb6 16.Qb6 Nb6 17.Nb5 Be7; B) 12.bc6 bc6 (12...Nc4 13.Nb5 bc6 14.Nd6 Nd6 15.Qc2 Nde4 16.0-0 Qa5 17.Rb1 Ng4) 13.cd5 ed5 14.0-0 Bd7 15.Qc2 Qe7 16.Rb1 Ra8 17.Bd3 h6.

11.Nc3 Qc7 A) 12.0-0 Nb6 (12...Rd8 13.bc6 bc6 14.d4 Bb7 15.c5 Be7 16.Qc2 e5 17.Rb1 e4; 12...Re8 13.Qc2 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 cd5 17.Ndb5 Bh2; 12...g6 13.g3 Qa5 14.Qc2 Rd8 15.bc6 bc6 16.cd5 ed5 17.Na4 Bb7; 12...h6 13.Qc2 Nb6 14.bc6 bc6 15.cd5 ed5 16.Rb1 Be6 17.h3 Ra8; 12...dc4 13.Bc4 Nb6 14.Bd3 c5 15.Na4 c4 16.Be2 Nfd5 17.Nb6 Nb6; 12...Ng4 13.h3 Nge5 14.Ne5 Ne5 15.c5 Be7 16.b6 Qd7 17.Qa4 Bf6; 12...c5 13.Qc2 b6 14.Bb2 dc4 15.h3 Bb7 16.Ra1 Ra8 17.Ra8 Ba8) 13.bc6 bc6 14.cd5 ed5 15.Qc2 Be6 16.Rb1 Rb8 17.g3 Bd7; B) 12.Qc2 Nb6 (12...Nc5 13.0-0 e5 14.d4 ed4 15.ed4 Nce4 16.bc6 bc6 17.Ne4 de4; 12...e5 13.Bb2 h6 14.h3 e4 15.Nd4 Ne5 16.bc6 bc6 17.cd5 cd5; 12...Rd8 13.0-0 Nb6 14.bc6 bc6 15.cd5 cd5 16.Rc1 Bd7 17.Nb5 Qc2) 13.bc6 bc6 14.Na4 Na4 15.Bf6 gf6 16.Qa4 e5 17.Qc2 Be6; C) 12.bc6 bc6 13.0-0 Ba6 14.cd5 Be2 15.Qe2 ed5 16.d4 Ne4 17.Rc1 Ra8; D) 12.Qb1 Nb6 (12...h6 13.0-0 Nb6 14.cd5 ed5 15.bc6 bc6 16.Rc1 Qa7 17.e4 Ba3; 12...Re8 13.0-0 Nb6 14.bc6 bc6 15.Qb3 e5 16.cd5 e4 17.Nd4 Nbd5; 12...Nc5 13.0-0 e5 14.h3 Bd7 15.cd5 e4 16.b6 Qb8 17.Nd4 cd5; 12...g6 13.cd5 cd5 14.0-0 Qa5 15.Qc2 e5 16.Na4 Re8 17.Bb2 e4; 12...Rd8 13.0-0 dc4 14.Bc4 Ng4 15.h3 Nde5 16.Ne5 Ne5 17.Be2 Bd7; 12...c5 13.Qc2 dc4 14.Bc4 Nb6 15.Be2 Bd7 16.0-0 Ra8 17.g3 c4) 13.cd5 ed5 14.0-0 Bd7 15.bc6 bc6 16.Rc1 Qa7 17.Rc2 Rb8; E) 12.g3 Nb6 13.cd5 cd5 14.0-0 Bd7 15.Qc2 Rc8 16.Nd4 Nc4 17.d3 Na3; F) 12.d4 c5 (12...dc4 13.Bc4 c5 14.0-0 Rd8 15.b6 Qb6 16.Nb5 Be7 17.Qc2 Nd5) 13.cd5 ed5 14.0-0 c4 15.Bb2 Nb6 16.Qc2 g6 17.Ra1 Bf5,

11.Nc3 Qe7 A) 12.Qc2 Nb6 (12...Nc5 13.0-0 Nfe4 14.bc6 bc6 15.Rb1 Bd7 16.d4 Nc3 17.Bc3 Ne4; 12...c5 13.0-0 Nb6 14.cd5 Nbd5 15.Bb2 Nb4 16.Qb1 e5 17.b6 e4; 12...g6 13.0-0 c5 14.Bb2 dc4 15.Bc4 Nb6 16.Be2 e5 17.d3 Rd8; 12...dc4 13.Bc4 Nb6 14.Bd3 c5 15.Na4 Na4 16.Qa4 Nd5 17.Be5 Nb4; 12...h5 13.0-0 Nb6 14.bc6 bc6 15.cd5 ed5 16.Ng5 Bg4 17.f3 Bd7; 12...Ne5 13.Ne5 Be5 14.0-0 Bc7 15.bc6 bc6 16.Bb2 Ba6 17.cd5 Be2; 12...h6 13.0-0 Nb6 14.bc6 bc6 15.cd5 ed5 16.Qb3 Bc7 17.Bb2 Be6; 12...e5 13.bc6 bc6 14.cd5 cd5 15.Nb5 e4 16.Nd6 Qd6 17.Nd4 Ne5) 13.bc6 bc6 14.cd5 ed5 15.0-0 Bd7 16.Rb1 Ra8 17.Qb3 Bc7; B) 12.0-0 Nb6 (12...c5 13.Bb2 Nb6 14.cd5 ed5 15.Qc2 g6 16.Ra1 Ng4 17.d3 Bf5; 12...Ne4 13.Qc2 Ndf6 14.Ne4 Ne4 15.d3 Nc5 16.bc6 bc6 17.Bc3 f6; 12...e5 13.bc6 bc6 14.cd5 cd5 15.Nb5 Bb4 16.Qc2 e4 17.Nfd4 Ne5; 12...Nc5 13.Qc2 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 cd5 17.Ncb5 Bd7) 13.cd5 cd5 14.Qb3 Bd7 15.d4 Nc4 16.Bc4 dc4 17.Qc4 Rc8; C) 12.bc6 bc6 13.cd5 ed5 14.Nd4 Bb7 15.Bb2 g6 16.0-0 Ra8 17.f4 Nc5; D) 12.Qb1 c5 (12...Nb6 13.bc6 Nc4 14.Bc4 dc4 15.Nb5 bc6 16.Nd6 Qd6 17.0-0 Qd5; 12...h6 13.0-0 c5 14.b6 Rd8 15.h3 Ne5 16.Ne5 Be5 17.f4 Bb8; 12...Nc5 13.0-0 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 cd5 17.Ncb5 Bd7; 12...Re8 13.0-0 c5 14.Bb2 Nb6 15.cd5 ed5 16.Qc2 g6 17.Ra1 Bf5; 12...Bc7 13.0-0 Nc5 14.b6 Bd8 15.Ne5 Nfe4 16.Nf3 Nf6 17.Ng5 Re8; 12...g6 13.0-0 Nb6 14.bc6 Nc4 15.Bc4 dc4 16.Nb5 Bc5 17.Bf6 Qf6) 13.0-0 Nb6 14.e4 Bf4 15.g3 Bc7 16.ed5 ed5 17.cd5 Nfd5; E) 12.cd5 cd5 (12...ed5 13.Nd4 c5 14.Nf5 Qe6 15.Nd6 Qd6 16.0-0 Nb6 17.Na4 Na4) 13.0-0 h6 14.Qc2 Nb6 15.Na4 Na4 16.Qa4 Bd7 17.Rc1 Ne4; F) 12.Bb2 Nb6 (12...Nc5 13.d4 Nce4 14.c5 Bb8 15.Nd2 e5 16.Nce4 de4 17.bc6 bc6) 13.cd5 cd5 14.Na4 Nc4 15.Bc4 dc4 16.Nb6 Qc7 17.Nc8 Rc8; G) 12.d4 dc4 (12...e5 13.0-0 dc4 14.bc6 bc6 15.Qa4 ed4 16.ed4 Bb7 17.Qa7 Bc8; 12...c5 13.0-0 dc4 14.Bc4 Rd8 15.Qe2 cd4 16.ed4 Nb6 17.Bb3 Bd7; 12...Ne4 13.c5 Bc7 14.b6 Bb8 15.0-0 f5 16.Qc2 e5 17.Bb2 ed4; 12...Bc7 13.0-0 dc4 14.Bc4 c5 15.Na4 b6 16.dc5 Nc5 17.Bf6 gf6; 12...Bb4 13.0-0 dc4 14.Bc4 c5 15.Qd3 Rd8 16.Rd1 Nb6 17.Bb3 cd4; 12...cb5 13.c5 Bc7 14.Nb5 Bb8 15.0-0 e5 16.Nc3 Re8 17.Bb2 h6) 13.Bc4 c5 14.0-0 Rd8 15.Qe2 cd4 16.ed4 Nb6 17.Bb3 Nbd5.

11.Nc3 h6 A) 12.d4 dc4 (12...c5 13.0-0 dc4 14.Bc4 Qc7 15.h3 Rd8 16.Bd3 c4 17.Bc2 b6) 13.Bc4 c5 14.0-0 Qc7 15.b6 Nb6 16.Nb5 Qc6 17.Nd6 Qd6; B) 12.Qc2 Nb6 (12...dc4 13.Bc4 Qa5 14.0-0 Nb6 15.Be2 Bd7 16.Ne4 Ne4 17.Qe4 Nd5; 12...Qc7 13.0-0 e5 14.bc6 bc6 15.cd5 cd5 16.Qb1 Bc5 17.Rc1 e4; 12...Ng4 13.0-0 Qc7 14.h3 Nh2 15.Nh2 Bh2 16.Kh1 Bd6 17.bc6 bc6; 12...Re8 13.0-0 Qc7 14.bc6 bc6 15.d4 Bb7 16.c5 Bf8 17.Bb2 Ra8; 12...Qe7 13.0-0 Nb6 14.bc6 bc6 15.cd5 ed5 16.Qb3 Bc7 17.Bb2 Be6; 12...Ne5 13.Ne5 Be5 14.0-0 Bd6 15.f4 Qc7 16.Rb1 e5 17.c5 Bc5; 12...Qa5 13.0-0 Qc7 14.Bb2 Nb6 15.bc6 bc6 16.cd5 ed5 17.Ra1 Bd7; 12...Qb6 13.0-0 Qc7 14.Bb2 Nb6 15.bc6 bc6 16.cd5 ed5 17.Ra1 Bd7; 12...c5 13.0-0 Nb6 14.d3 Qc7 15.Bb2 e5 16.e4 d4 17.Na4 Na4) 13.bc6 bc6 14.cd5 ed5 15.0-0 Re8 16.Qb3 Bg4 17.Rb1 Bc7; C) 12.Bb2 Nb6 (12...Qa5 13.Qc2 dc4 14.Bc4 Qb4 15.Na2 Qa5 16.bc6 bc6 17.0-0 Ba6; 12...Qc7 13.d4 dc4 14.Bc4 c5 15.0-0 Nb6 16.Be2 Bd7 17.Na4 cd4; 12...c5 13.0-0 dc4 14.Bc4 Nb6 15.Be2 e5 16.Qc2 c4 17.Ra1 Bd7; 12...Ne4 13.cd5 ed5 14.bc6 bc6 15.Qc2 Qb6 16.0-0 Ndf6 17.Rb1 Qc7; 12...Nc5 13.0-0 Qe7 14.Qc2 Bd7 15.Ra1 e5 16.d4 ed4 17.Nd4 Ng4; 12...Ng4 13.bc6 bc6 14.cd5 ed5 15.Nd4 Nc5 16.Nc6 Qb6 17.Bb5 Bd7; 12...Qb6 13.0-0 Ne4 14.Qc2 Ndf6 15.Ne4 Ne4 16.d3 Ng5 17.bc6 bc6; 12...e5 13.bc6 bc6 14.cd5 e4 15.Nd4 cd5 16.0-0 Re8 17.h3 Qb6; 12...dc4 13.Bc4 Nb6 14.Bd3 Nbd7 15.0-0 Qc7 16.bc6 bc6 17.Qc2 Nc5; 12...Qe7 13.0-0 Nb6 14.cd5 cd5 15.Qb3 e5 16.Ra1 e4 17.Nd4 Bd7; 12...Re8 13.0-0 Nb6 14.cd5 ed5 15.bc6 bc6 16.Qb3 Bd7 17.d4 Qb8) 13.cd5 ed5 14.bc6 bc6 15.0-0 Bd7 16.Qc2 Qe7 17.Ra1 Rb8; D) 12.bc6 bc6 13.0-0 Qa5 14.cd5 ed5 15.Qa4 Qc7 16.Qh4 Bb7 17.Rb1 Ra8; E) 12.cd5 cd5 (12...ed5 13.0-0 Re8 14.bc6 bc6 15.Qc2 Nb6 16.Qb3 Bg4 17.Rb1 Bc7) 13.0-0 Qc7 14.Qb1 Qa5 15.Qc2 Nb6 16.e4 Ne4 17.Ne4 de4; F) 12.0-0 Nb6 (12...dc4 13.bc6 bc6 14.Bc4 Nb6 15.Be2 Nbd5 16.Qc2 Nb4 17.Qb1 Nbd5; 12...Qe7 13.d4 dc4 14.Bc4 c5 15.Bb2 Rd8 16.Qe2 e5 17.Ra1 e4; 12...Qc7 13.d4 dc4 14.Bc4 c5 15.h3 Rd8 16.Bd3 c4 17.Bc2 b6) 13.bc6 Nc4 14.Nb5 bc6 15.Nd6 Nd6 16.Qc2 Bb7 17.Rb1 Nb5.

11.bc6 bc6 A) 12.cd5 ed5 (12...cd5 13.Nc3 Ne4 14.d3 Nef6 15.0-0 Ba6 16.Qc2 Qc7 17.Rb1 Ra8; 12...Nd5 13.Nc3 Nc5 14.0-0 Qa5 15.Nd5 ed5 16.Qc2 g6 17.Ne5 Qc7) 13.Nc3 Nc5 14.0-0 Qa5 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 f6; B) 12.Qc2 Ba6 (12...Qa5 13.Bc3 Qc7 14.cd5 ed5 15.d4 Qb6 16.0-0 Ba6 17.Ba6 Qa6) 13.cd5 Be2 14.Bf6 Nf6 15.Ke2 cd5 16.Nc3 Qa5 17.Rb1 Rc8; C) 12.0-0 Qa5 (12...Qb6 13.Qc2 Qa5 14.Bc3 Qc7 15.d4 Ne4 16.Nbd2 Nc3 17.Qc3 c5; 12...Ba6 13.cd5 Be2 14.Qe2 cd5 15.Nc3 Qa5 16.Bb2 Rb8 17.Ra1 Qb6) 13.Nc3 Ba6 14.d3 Rb8 15.Nd4 Qc7 16.f4 Nc5 17.Qc2 h5; D) 12.Nc3 Qb6 (12...Ba6 13.cd5 Be2 14.Qe2 ed5 15.0-0 Qc7 16.d4 Ne4 17.Rc1 Ra8; 12...Bb7 13.0-0 Qa5 14.cd5 ed5 15.Nd4 Rb8 16.Qc2 g6 17.Bb2 Ne5; 12...Qa5 13.cd5 ed5 14.Nd4 Qc7 15.f4 Nc5 16.0-0 Bd7 17.Qc2 Ra8; 12...Nc5 13.0-0 Qa5 14.cd5 ed5 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 f6; 12...Re8 13.0-0 Qa5 14.cd5 ed5 15.Nd4 Nc5 16.Bb2 Bd7 17.Qc2 Rb8; 12...Qc7 13.d4 dc4 14.Bc4 Qb6 15.Qd3 Ba6 16.0-0 Ra8 17.Rb1 Bc4; 12...Nb6 13.cd5 ed5 14.0-0 Bd7 15.Qc2 Qe7 16.Rb1 Ra8 17.Bd3 h6) 13.cd5 ed5 14.Qc2 Ba6 15.0-0 Be2 16.Ne2 Ra8 17.Ned4 c5.

11.cd5 cd5 A) 12.0-0 Qa5 (12...Qc7 13.Qc1 Nc5 14.d4 Nb3 15.Qc7 Bc7 16.Nc3 Bd7 17.Bb2 Ra8; 12...e5 13.Nc3 Qc7 14.b6 Qb6 15.Nb5 e4 16.Nd6 Qd6 17.Nd4 Nc5; 12...Nc5 13.Qc2 Bd7 14.Rc1 Qe7 15.Be5 b6 16.Nc3 Rc8 17.Qb2 h6; 12...b6 13.Qc2 Bb7 14.Nc3 Nc5 15.d4 Nce4 16.Ne5 Qc7 17.f3 Nc3; 12...Re8 13.Qc2 Nc5 14.Nc3 e5 15.d4 ed4 16.Nd4 Bg4 17.Bg4 Ng4; 12...Nb6 13.Qc2 g6 14.Be5 Be5 15.Ne5 Qd6 16.f4 Nfd7 17.d4 Qb4; 12...Qe7 13.Nc3 b6 14.Bb2 Bb7 15.Qc2 Ra8 16.Ra1 Ra1 17.Ba1 e5; 12...h6 13.Qc2 b6 14.Nc3 Qc7 15.Bb2 Bb7 16.Rc1 Rc8 17.d4 Ne4) 13.Bc3 Qc7 14.Bb2 Nc5 15.Bf6 gf6 16.Qc2 Bd7 17.Rc1 Rc8; B) 12.Nc3 Qc7 (12...Nc5 13.0-0 Bd7 14.d4 Nce4 15.Ne5 Nc3 16.Bc3 Ne4 17.Bb2 Qc7; 12...Nb6 13.0-0 Bd7 14.Qc2 Qc7 15.h3 Ra8 16.Rc1 h6 17.Qd1 Qd8; 12...Qa5 13.0-0 Nc5 14.Bb2 Bd7 15.d4 Nce4 16.Qa1 Ra8 17.Qa5 Ra5; 12...h6 13.0-0 b6 14.Nd4 Bb7 15.Qc2 Nc5 16.Bb2 Qc7 17.g3 Ra8; 12...e5 13.0-0 e4 14.Nd4 Qc7 15.h3 Nc5 16.Qc2 Be6 17.Bb2 Ra8; 12...g6 13.0-0 b6 14.Nd4 Bb7 15.f4 Qc7 16.Qc2 Ra8 17.Bb2 e5; 12...Ne5 13.Ne5 Be5 14.0-0 Bd7 15.f4 Bd6 16.Bb2 Qb6 17.Na4 Qc7; 12...b6 13.Qc2 Bb7 14.0-0 Qc7 15.Bb2 Ra8 16.Rc1 Nc5 17.g3 Nfe4; 12...Ne4 13.0-0 Ndc5 14.Qc2 Bd7 15.Rc1 f6 16.d4 Nc3 17.Bc3 Ne4; 12...Qe7 13.0-0 b6 14.Qc2 Bb7 15.Bb2 Ra8 16.Ra1 Ra1 17.Ba1 e5) 13.0-0 Nb6 14.Na4 Na4 15.Bf6 Nc5 16.Bb2 Bd7 17.Qc2 Rc8; C) 12.Bb2 Qc7 (12...Re8 13.Nc3 Nc5 14.0-0 Bd7 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 Qc7; 12...Nc5 13.0-0 Bd7 14.Nc3 Qc7 15.d4 Nce4 16.Ne4 Ne4 17.Ne5 Rc8; 12...h6 13.Nc3 Nc5 14.0-0 Bd7 15.d4 Nce4 16.Ne5 Nc3 17.Bc3 Ne4; 12...Qa5 13.0-0 Nc5 14.Qc2 Bd7 15.Be5 Be7 16.Nc3 Rc8 17.Qb2 h6; 12...Nb6 13.Qb3 h6 14.0-0 Bd7 15.Rc1 Ne4 16.Bd4 Nc4 17.d3 e5; 12...h5 13.Nc3 Nc5 14.0-0 Qc7 15.g3 Bd7 16.Qb1 Qa5 17.Ng5 g6; 12...Ne4 13.0-0 Ndf6 14.d3 Nc5 15.Nc3 Qc7 16.Qc2 Bd7 17.Rc1 Rc8; 12...b6 13.Nc3 Bb7 14.0-0 Qc7 15.d4 e5 16.Na4 e4 17.Ne5 Re8; 12...e5 13.Nc3 Qc7 14.h4 e4 15.Nd4 Nc5 16.0-0 Bd7 17.Qc2 Ra8) 13.0-0 Nc5 14.Bf6 gf6 15.Qc2 Bd7 16.Rc1 Rc8 17.Qb2 Qa5; D) 12.Qc2 Qa5 (12...e5 13.0-0 e4 14.Nd4 Nc5 15.h3 Qc7 16.Nc3 Be6 17.Bb2 Ra8; 12...b6 13.0-0 Bb7 14.Nc3 Qe7 15.Bb2 Ra8 16.Ra1 Ra1 17.Ba1 e5; 12...Nc5 13.0-0 Bd7 14.Bd4 Qc7 15.Nc3 Rc8 16.Ra1 e5 17.b6 Qb8; 12...Qb6 13.0-0 h6 14.Nc3 Nc5 15.d4 Nce4 16.Ne5 Rd8 17.Rc1 Bd7; 12...Qe7 13.0-0 Nc5 14.Bd4 Bd7 15.Ne5 Nfe4 16.Nd7 Nd7 17.Nc3 Rc8; 12...Qe8 13.0-0 Qe7 14.Bb2 Nc5 15.Bd4 Ncd7 16.Bb2 Nc5 17.Bd4 Ncd7; 12...h6 13.0-0 b6 14.Nc3 Bb7 15.Bb2 Qe7 16.Ra1 Rc8 17.Ra7 Nc5; 12...Ng4 13.0-0 f5 14.h3 Nge5 15.Ne5 Ne5 16.f4 Ng6 17.Nc3 Bd7; 12...h5 13.0-0 e5 14.Ng5 g6 15.Nc3 Nc5 16.Qa2 d4 17.Bc4 dc3; 12...Re8 13.0-0 Nc5 14.Nc3 e5 15.d4 ed4 16.Nd4 Bg4 17.Bg4 Ng4) 13.Bb2 Nc5 14.0-0 Bd7 15.Be5 Nce4 16.Nc3 Be5 17.Ne5 Rc8.

11.cd5 ed5 A) 12.Nc3 Qc7 (12...Nc5 13.bc6 bc6 14.0-0 Qa5 15.Qc2 Ba6 16.Rb1 Rb8 17.Rb8 Bb8; 12...Re8 13.0-0 Nc5 14.bc6 bc6 15.Nd4 Qb6 16.Qc2 Qc7 17.f4 Bg4; 12...c5 13.0-0 Nb6 14.Qc2 g6 15.d3 Re8 16.Bb2 Bf5 17.Ra1 Qc7; 12...Nb6 13.0-0 c5 14.d4 c4 15.Ne5 Qc7 16.f4 Be6 17.Qc2 Ra8; 12...Qb6 13.0-0 Nc5 14.Qc2 Re8 15.bc6 bc6 16.Rb1 Qc7 17.d4 Nce4; 12...Ne5 13.Ne5 Be5 14.0-0 Bf5 15.g4 Be6 16.f4 Bc3 17.Bc3 Ne4; 12...Qa5 13.Nd4 Qc7 14.bc6 bc6 15.f4 Nc5 16.0-0 Bd7 17.Qc2 Ra8) 13.d4 Nb6 14.bc6 bc6 15.0-0 Be6 16.Ne5 Rb8 17.f4 Nc4; B) 12.0-0 Nc5 (12...Qc7 13.Qc2 Re8 14.bc6 bc6 15.g3 h6 16.Rc1 Bb7 17.Nc3 Nc5; 12...Qa5 13.Nc3 Nc5 14.Qc2 Bg4 15.Bb2 g6 16.Ra1 Qc7 17.h3 Bf5; 12...Ne4 13.Qc2 Ndf6 14.d3 Nc5 15.bc6 bc6 16.Bd4 Qe7 17.Rc1 Ne6; 12...c5 13.Bb2 Nb6 14.Qc2 Re8 15.Nc3 Bd7 16.Ra1 h6 17.d4 c4; 12...Re8 13.Nc3 Nc5 14.bc6 bc6 15.Nd4 Qc7 16.f4 Bd7 17.Qc2 Ra8; 12...Qe7 13.Nc3 Nc5 14.bc6 bc6 15.d4 Nce4 16.Qc2 Bd7 17.Ne4 Ne4; 12...Nb6 13.Qc2 c5 14.Bb2 g6 15.d3 Bf5 16.Nbd2 Re8 17.Ra1 d4) 13.bc6 bc6 14.Nc3 Qa5 15.Qc2 Ba6 16.Rb1 Rb8 17.Rb8 Bb8; C) 12.Qc2 cb5 (12...Qa5 13.Bb2 cb5 14.Nc3 b4 15.Nb5 Be7 16.0-0 Nc5 17.Bf6 gf6; 12...Nc5 13.Nc3 g6 14.Nd4 Qc7 15.f4 Bg4 16.Bg4 Ng4 17.0-0 Ra8) 13.Nc3 b4 14.Nb5 Nc5 15.Bd4 b3 16.Qb1 Re8 17.Nd6 Qd6; D) 12.Bb2 Re8 (12...Nc5 13.Nc3 Qb6 14.0-0 Bg4 15.h3 Bh5 16.Qa1 Bg6 17.bc6 bc6; 12...Qb6 13.Nc3 Nc5 14.0-0 Be6 15.Qc2 Nce4 16.bc6 bc6 17.Ne4 Ne4; 12...Ne4 13.Nc3 Ndf6 14.Qc2 Qc7 15.bc6 bc6 16.d3 Nc5 17.0-0 Bf5; 12...Qc7 13.Nc3 Nb6 14.Qc2 Bd7 15.bc6 bc6 16.Bd3 Ra8 17.Ne2 h6; 12...cb5 13.Bb5 Nc5 14.Nc3 Qc7 15.0-0 Bg4 16.h3 Bd7 17.d4 Nce4; 12...Qe7 13.Nc3 Nc5 14.0-0 Bg4 15.Nd4 Be2 16.Qe2 Ra8 17.f4 Qd7; 12...Ng4 13.Qc2 Nc5 14.h3 Nh6 15.g4 Re8 16.Nc3 f5 17.d4 Ne4) 13.Nc3 Nc5 14.0-0 Bf5 15.Nd4 Bg6 16.bc6 bc6 17.Ba3 Qa8; E) 12.bc6 bc6 13.Nc3 Nc5 14.0-0 Qa5 15.Qc2 Ba6 16.Rb1 Ra8 17.Bb2 Ra7.

9.Nc3 cb5 10.Nb5 dc4 11.Bc4 Nf2 12.Kf2 Qh4 13.g3 Qc4 14.Bg7 Rg8 15.Bf8 Qb5 =+.

9.Nc3 cb5 10.Nb5 dc4 11.Nf3 =.

9.Nc3 Nd6 10.c5 (10.cd5 cd5 11.Nf3 Be7=) 10...Nf5 (10...Nb5 11.Nb5 cb5 12.Bb5 Bd7 13.Qb1+=) 11.d4 b6 12.Na4 (12.cb6 Qb6 13.Nf3 Qa5=) 12...bc5+= 13.dc5 cb5 14.Bb5 Bd7 15.Bd7 Nd7 Attacks the isolani on c5 (worse is 15...Kd7 16.e4 Ne7 17.Nb6 Ke8 18.Nf3 de4 19.Qd8 Kd8 20.Ng5+=) 16.Nf3 (16.g4 Nh4 17.Qb3 Qa5 (17...Nc5 18.Nc5 Qa5 19.Bc3 Qc5 20.Qa4 Kd8 21.Ba5 Kc8 22.Qe8 Kb7 23.Qf7 Qe7 24.Qe7 Be7 25.Bc3+=) 18.Bc3 Qa6-/+) 16...Nc5 17.0-0 Na4 (better is 17...Qa5!? 18.Nc5 Bc5-/+ (18...Qc5? 19.Qa4 Ke7 20.Ne5+-)) 18.Qa4= ½–½. Dijkhuizen,A – Sennema,H, Barneveld, 2000.

9.Nc3 Nd7 10.Nf3 Ndf6 11.bc6 bc6 12.Ne4 de4 +=.

9.Nc3 Nd7 10.Nf3 Ndf6 11.Be2 Bb4 12.0-0 (12.bc6 bc6 13.Ne4 de4=) 12...0-0= 13.Qb3 (13.Ne4 Ne4 14.Qc2 Qe7+=) 13...Bc3 (13...Be7 14.d3 Nc5 15.Qc2+=) 14.Bc3+= Nc3 15.Qc3 Ne4 16.Qb2 Qb6 (16...dc4 17.bc6 bc6 18.Bc4+=) 17.Rc1 dc4 (17...f6 18.d3 Nd6 19.Qc2 dc4 20.dc4+=) 18.Qe5 Nf6 19.bc6 Qc6 (19...bc6 20.Bc4 (20.Rc4? Ba6 21.g3 Rd8-+) 20...c5 21.Bd3+=) 20.Rc4 (20.Bc4 Bd7+=) 20...Qb6 21.Qc5 Qc5 22.Rc5 Ne4 23.Rc7 Rd8 24.d4 Nd6 25.Ne5 Kf8 26.Nc4 Nc4 27.Bc4+/– g6 28.f3 Kg7 29.e4 Kf6 30.Kf2 Bd7 31.Rb7+- Rc8 32.Rd7 Rc4+/– 33.h4 Rc2 34.Ke3 Rc6 35.Kd3 h5 36.Ke3 Rb6 37.Kf4 Ra6 38.g4 Ra5 39.e5 Kg7 40.gh5 gh5 41.Kg5 (41...Ra1 42.Kh5+-) 1–0. Adam,Stefan – Mueller,Siegmar, corr DDR–ch11 sf02, 1981.

9.Nc3 Nd7 10.Nf3 Ndf6 11.Be2 Bd6 12.0-0 =.

9.cd5 cd5 10.Bf6 Bf6 11.Nf3 Bd7 12.Be2 Qa5 Attacks the isolani on b5 13.Qb3 0-0 14.0-0 b6 (14...Rc8 15.d4=) 15.d4 (15.Rc1 Be7+=) 15...Be7 (15...Rc8 16.Rd1=) 16.Rc1 Qb4 17.Qb4 Bb4 18.Ne5 (18.Bd3+=) 18...Be8 (18...Rc8 19.Rc8 Bc8 20.Nc6 Nc6 21.bc6=) 19.Rc8 (19.Nc6 Bd6 20.Nb8 Bb8+/-) 19...Nd7 (better 19...Bd6!?=) 20.Nc6+/- Bd6 21.Nd2 (21.Ra8 f5+/-) 21...Nf6+= 22.Nf3 Bd7 23.Rf8 Bf8 (23...Kf8 24.Bd3+=) 24.Nfe5 Bc8? (24...Bd6 25.Kf1+=) 25.g3 (better 25.Nd8!?+-) 25...Ne4 26.f3 (26.Na7 Nd6+=) 26...Nc3 27.Kf2 Ne2 28.Ke2 Bd6 29.f4 (29.e4 f6 30.Nd3 Kf7+=) 29...f6 30.Nf3 Bb7 31.Kd3 Kf7?? (31...Kf8 32.e4=) 32.Kc3?? (better 32.Nd8 Ke7 33.Nb7+-) 32...Bc6 33.bc6 Ke7 34.Kb3 Kd8 (34...b5!? 35.Nd2 Kd8=+) 35.Ka4+= Kc7 36.Kb5 Be7 (36...Ba3 37.Ne1+=) 37.h4 (37.f5 ef5 38.Ng1 Bd8+/-) 37...Ba3 (better 37...h5+=) 38.Nd2?? (better 38.h5!?+/-) 38...Bc1= 39.Nf1 Bb2 (39...h5 40.Kb4 Kc6 41.Kc3-+) 40.h5 (40.g4 g6=) 40...Bc3 41.g4 h6 42.f5 e5 (42...ef5!? 43.gf5 Be1+=) 43.de5+/- Be5 44.Nd2 Bc3? (44...Bg3+=) 45.Nf1?? (better 45.Nf3+-) 45...Be1 46.e4 de4 47.Ne3 Bf2 48.Nd5 Exerts pressure on the isolated pawn 48...Kb8 49.Nb6?? (better 49.Nc3 e3 50.Ne2=) 49...e3 (better 49...Bb6 50.Kc4 Kc7-+) 50.Nd7 Kc7 51.Nc5 e2 52.Nd3 Bh4 53.Kc5 e1Q 54.Ne1 Be1 55.Kd5 Bb4 56.Ke6 Kc6 57.Kf7 Kd5?? (57...Bd2 58.Kg7 Bg5-+) 58.Kg7+- Ke4?? (better 58...Bd2 59.Kf6 Bg5 60.Kg6 Ke5+-) 59.Kf6 (better 59.Kh6 Kf4 60.Kg6+-) 59...Kf4= 60.Kg6 Kg4 61.f6?? (better 61.Kh6 Kf5 62.Kh7=) 61...Kh4?? (better 61...Bf8 62.f7 Kh4-+) 62.Kh6+- Kg4 63.Kg7 (better 63.Kg6+-) 63...Kh5= 64.f7 Kg5 65.f8Q Bf8 ½-½. AleksandrNekhoroshik (1670) - noobtheory (1705), lichess.org, 2020.

9.cd5 ed5 10.Nc3 0-0 11.Nf3 Bg4 12.Be2 Qc7 13.0-0 Rd8 (13...Nbd7 14.d4=) 14.Nd4 Be2 15.Qe2 c5 (15...Nbd7 16.Bb2=) 16.Nf5 Bf8 (16...g6 17.Nh6 Kg7=) 17.d3 (17.Qf3 g6 18.Nh6 Bh6 19.Qf6 d4=) 17...Qe5 (17...g6 18.Ng3=+) 18.Ng3 (better 18.Nh6! gh6 19.Nd5 Qd5 20.Bf6+-) 18...Qe6= 19.Qf3 b6 (19...Nbd7 20.Nce2=+) 20.Bb2 (20.Nce2 Nbd7+=) 20...Nbd7= 21.Nf5?? (better 21.d4=) 21...Ne5-+ 22.Qh3 Nd3 23.Ba1 g6 (23...Ra8 24.Rd1-+) 24.Nh6 Bh6 25.Qh6 d4 26.ed4 cd4 (26...Rd4?! 27.f3-/+) 27.Nd1 Qd5 (27...Qe5 28.f4 Qb5 29.f5-+) 28.Qh4 (28.f3 Qb5 29.Qd2 Nc5-+) 28...Ne4 (28...Nh5!? 29.g3 Nc5 30.Qe7-+) 29.f3 Nd2 (better 29...Ng5-+) 30.Rf2?? (better 30.Ne3! Qd6 31.Nf5 gf5 32.Qg5 Kh8 33.Qd2=+) 30...Nf2 (better 30...Re8 31.Rf1 Nf1 32.Qd4 Qd4 33.Bd4-+) 31.Qf2 (31.Kf2 g5 32.Qg4 Qb5-+) 31...Nb3 32.Bb2 Qb5 33.Qh4 (33.Qf1 Qf1 34.Kf1 Re8-+) 33...Rd7 (better 33...Re8 34.h3 Qe2 35.Kh2 Qd1 36.Qf6-+) 34.Qf6 (34.Qe4-+) 34…Qe2 (34...Qe2 35.h4 Qd1 36.Kh2 Qe2-+) 0–1. GuestXFWQ – randstein, freechess.org, 2019.

9.cd5 ed5 10.Nf3 Bf5 11.Be2 c5 12.Nh4 Be6 13.0-0 0-0 14.Qc2 Ne4 (14...Qd7 15.f4 Ne4 16.Nf3=) 15.Nf3= Nd7 16.d3 Nd6 17.Na3 Qb6 18.Qa4 Qd8 19.Bc3 (19.Qc2 Re8=) 19...Nb6 (19...Bf6 20.Bf6 Qf6 21.d4=) 20.Qc2= Qc7 Black prepares the advance c4 21.e4 (21.Ra1 Rc8=) 21...Qd7 22.Ne5 Qc7 23.f4 (23.Nf3 Ra8 24.Bb2 Qd7=+) 23...Ra8 24.Bb2 c4 25.ed5 Nd5 26.Nec4 (worse 26.dc4 Ne3 27.Qd3 Nf1 28.Kf1 Rd8-/+; worse 26.Nac4 f6 27.Bg4 Nf5 28.Bf5 Bf5=+) 26...Nc4 27.Nc4 Nf4 28.Kh1 Ne2 29.Qe2 Qc5 30.b6 Qd5 (30...Ra2 31.Qf3-/+) 31.Qc2 h5 32.Rf4 Rd8 33.Rf3 Bg4 34.Qc3 Qg5 (34...f6 35.Rg3=+) 35.Re3= Bf8 36.Qe1 Bf5 Attacking the isolated pawn on d3 37.Ne5 Be6 38.Rg3 Qe7 39.d4 (39.Qc3 Qf6 40.Rf3 Qh4=) 39...Qd6=+ 40.Re3 (40.Bc3 h4 41.Re3 h3-/+ (worse 41...Qb6 42.Ba5 Qd4 43.Re4+=)) 40...Qb6-/+ 41.Bc3 Qb5 42.Qf2 Ra8 43.Qe1 Ra2 44.Nf3 Bd5 45.Kg1 Qc6 46.h3 b5 47.Qb1 b4! 48.Bb4 Bb4 (48...Rc2 49.Bc5 Qg6 50.Qc2 Qc2 51.Re8-+) 49.Qb4 Qg6 50.Qb8 Kh7 51.Qh2 h4 52.Ne1 Qg5 53.Re5 Qd2 0-1. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Be2 0-0 10.Nf3 Nbd7 11.cd5 ed5 12.bc6 bc6 13.0-0 Qc7 14.Nc3 Ne4 15.Ne4 de4 16.Nd4 Ne5 (16...Bd6 17.Qc2=) 17.Qc2+= Exerts pressure on the isolated pawn 17...f5 18.Bc4 Kh8 19.Be2 Bf6 20.Nb5 Qd7 21.Nd4 Bb7 22.Rc1 Nd3 (better is 22...Ra8!?=) 23.Bd3+/– ed3 24.Qd3 Rc8? (better is 24...Ra8!? 25.Bc3 Bd4 26.Qd4 Qd4 27.Bd4 Ra5+/–) 25.Qf5+- Qf5 (25...Qd5 26.e4 Qa2 27.e5+-) 26.Nf5 Ba1 27.Ra1 Rd8 28.Rb1 (28.d4 g6 29.Ng3 Bc8+-) 28...Ba8? (28...Rd2 29.Ng7 Bc8 30.Nh5+-) 29.h3 (29.d4 Kg8 30.f3 Kf7+-) 29...h6 (29...c5 30.Nd6 Kg8 31.Rb6+-) 30.d4 Kh7 31.Kh2 (31.Ra1 Bb7+-) 31...Kg6 (31...c5 32.Ra1 (32.dc5?! Be4 33.Rc1 Bf5+/–) 32...cd4 33.Nd4+- (33.ed4?! Be4 34.Ng3 Rd4+/–)) 32.g4 Kf6 33.f4 g6 (33...h5 34.e4 g6 35.e5 Ke6 36.Nd6+-) 34.Nh4 (better is 34.Nh6!? Ke7+-) 34...Re8 35.Re1 Bb7 36.Nf3 (better is 36.e4!? Ba6+-) 36...c5 37.Ne5 cd4 38.ed4 Re7 39.Rb1 Be4 40.Rb6 Kg7 41.Kg3 g5 (41...Ra7+-) 42.f5 Rb7 43.Rg6 (43.f6!? Kg8 44.Rd6 Kh7+-) 43...Kh7 44.Rd6 Rb3 (44...Rb2 45.h4 Rb3 46.Kf2+-) 45.Kh2 (45.Kf2!? Rb5+-) 45...Rb2 46.Kg1 Rb3 (46...Rb5 47.Rd7 Kg8 48.f6+-) 47.f6 (better is 47.Rd7 Kh8 48.f6 Rb8 49.Nf7 Kg8 50.Nh6 Kf8+-) 47...Bg6 (47...Rb7+-) 48.Rd7 Black resigned 1–0. retiponziani – Mr.Oldenslo, ChessWorld.net, 2012.

9.Nf3 Qa5 10.Bc3 Qa7 (10...Qd8 11.cd5 ed5 12.bc6 Nc6 13.Bb5=) 11.Qc2 0-0 12.cd5 cd5 (12...Nd5 13.Bd3 f5 14.0-0=) 13.Bd3 (13.Bd4 Qa5=) 13...Nbd7 14.0-0 (14.Ne5 Qc5=) 14...Qb8 15.Rc1 (15.Ng5 h6 16.Nh7 Nh7 17.Bh7 Kh8=) 15...e5 16.Bf5 (16.Be2 Bd6=) 16...e4 17.Ne1 (17.Nd4=) 17...Bd6 (better 17...Nb6!? 18.Bc8 Rc8=+) 18.Bf6+= Bh2 (better 18...gf6!? 19.d3 Nb6 20.de4 Bf5 21.ef5 Bh2 22.Kh1 Rc8+=) 19.Kh1+- gf6 20.Qd1 Be5?? (better 20...Rd8 21.g3 Ne5 22.Rc8 Rc8+-) 21.Qg4 Kh8 22.Qh5 (22.Qh5 h6 23.Qh6 Kg8 24.Qh7) 1–0. DEFFM – GuestVJQQ, freechess.org, 2018.

9.Nf3 Qa5 10.Nc3 0-0 11.Be2 dc4 12.Bc4 cb5 13.Bb5 Nc6 14.0-0 Nd5 15.Be2 Nc3 16.Bc3 Qc7 17.Qa1 b6? (better 17...f6!?+=) 18.Bg7+- Re8 19.Bh6 (19.Bh8 Bf8 20.Rc1 Bb7+-) 19...e5+/- 20.Rc1 f6?? (better 20...Bc5 21.d4 ed4 22.ed4 Qd6+-) 21.d4 (better 21.Qa2 Kh8 22.Qf7+-) 21...Qd6 22.de5 (better 22.Bb5 Bd7 23.de5 fe5 24.Rd1 Qh6 25.Rd7+-) 22...Ne5 23.Rd1 Qc6 (23...Qe6+-) 24.Ne5 fe5 25.Qe5 Bf6 26.Qg3 (better 26.Qf4 b5 27.Bh5 Bd7+-) 26...Kh8 27.Bf3 Qe6 28.Qc7 Bd7?? (28...Be5 29.Qc6 Qg6+-) 29.Qd7 Qd7 30.Rd7 Rc8 31.g3 b5 (31...Rb8 32.Be4+-) 32.Rb7 1-0. BeepBeepImAJeep (2535) - slava73 (2395), lichess.org, 2017.

9.Nf3 Qa5 10.Nc3 0-0 11.Be2 Nbd7 12.0-0 e5 13.cd5 (13.Qc2 Qc7+=) 13...cd5= 14.d4 e4 15.Nd2 (15.Ne5=) 15...Bb4 (15...Nb6!?=) 16.Qb3+= Nb6 (16...Bd6 17.Bb2+-) 17.Bb2+- Bc3 (17...Bd6 18.Ra1 Qb4 19.Qc2+-) 18.Bc3 (worse 18.Qc3 Qc3 19.Bc3 Bd7=) 18...Qa7 (18...Qa4 19.Qb2 Qa7 20.Ra1+-) 19.Ra1+- Qb8 20.Bb4 (20.Ba5 Nbd7+-) 20...Re8+- 21.Bc5 (21.h3 Be6+-) 21...Qc7 22.h3 Be6 23.Qb4 Nfd7 (23...Rc8 24.Bd6 Qd8 25.Be5+-) 24.Bd6 Qc2 25.Bd1 Qc8 26.Be2 f5 (better 26...Qc2!?=) 27.Qb2 (27.Bf4 Qc2+-) 27...Nb8 (27...Nc4!? 28.Nc4 dc4+-) 28.Rc1 Qd7 29.Bc7 Nc4 30.Bc4 (30.Nc4 dc4 31.Bb8 Rb8 32.Bc4 Bc4 33.Rc4 Rc8 34.Rc8 Qc8 35.Qb3 Kf8 36.Qa3 Ke8+-) 30...dc4 31.Bb8 Rb8 (31...c3 32.Rc3 Rb8 33.Nc4+-) 32.Nc4 Rc8 33.Nb6 Rc1 34.Qc1 Qb5 35.Qc7 Qc6?? (better 35...Kh8+-) 36.Qd8+- Kf7 37.d5 (37.d5 Qe8 38.de6 Qe6 39.Nd5+-) 1–0. DEFFM – ArthurJap, freechess.org, 2018.

9.Nf3 dc4 10.Bc4= cb5 11.Bb5 Bd7 12.Qa4 (12.Bf6 Bf6 13.Bd7 Nd7=) 12...0-0 13.0-0 Bb5 14.Qb5 Qd5 15.Qb2 Nbd7 (15...Rc8 16.Nc3 Qd7 17.Rb1=) 16.Nc3 Qc6 17.Nd4 Qa6 18.Rb1 Rb8 19.Ndb5 Bf8 20.d4 Qc6 21.Rc1 Qa6 (21...Nb6 22.Qc2=) 22.Qb3 Rc8 23.Bb2 Qa5 24.Kf1 (24.Ra1 Qb6+=) 24...Qb4= 25.Qb4 Bb4 26.Ke2 Nb6 27.Na2 Rc1 28.Bc1 Be7 29.f3 Kf8 30.e4 h6 31.Bf4 Nc8 (31...g5 32.Bc7 Nc4 33.Kd3 Nb2 34.Kc3 Nd1 35.Kd2=) 32.Kd3 Ke8 33.Nac3 Kd7 34.d5 ed5 35.ed5 Nd6 36.Nd6 Bd6 37.Bd6 Kd6 38.Kd4 Nd7 39.f4 ½–½. Sternik,Ryszard – Czaban,Czeslaw, Olsztyn, 1990.

9.Nf3 Bd7 10.Ne5 cb5 (10...dc4 11.bc6 Nc6 12.Bc4 Ne5 13.Be5=) 11.Nd7 Nbd7 (11...Qd7 12.cd5 ed5 13.Bf6 Bf6 14.d4=) 12.cd5+= Nd5 (12...ed5 13.Bf6 Bf6 14.Bb5=) 13.Bg7 Rg8 14.Bb2 N7f6 (14...h6 15.Qb3+-) 15.Bb5+- Kf8 16.0-0 (16.Qf3 Qb6 17.Na3 Kg7+=) 16...Nb4 (16...Nf4! 17.ef4 Qd5+=) 17.Qf3 (17.Qe2 Qd5 18.f4 Qf5+-) 17...Qb6 (17...Qd5!? 18.Qd5 Nfd5+- (18...ed5? 19.Rc1+-)) 18.Nc3 Nbd5 (18...Rg5 19.Rb1+-) 19.Nd5 Nd5 20.Rb1 Qa5 (20...Qd8 21.Bd3 f5 22.Qh3+-) 21.Bd3 Qa2 (21...f6 22.Ra1 (22.Bh7?! Rh8 23.Be4 Qd2+-) 22...Qd8 23.Qh3+-) 22.Bh7 (22.Ra1 Rg2 23.Qg2 Qb2 24.Ra8 Bd8 25.Rd8 Ke7+-) 22...f5 23.Bf5! ef5 24.Qf5 Ke8 25.Qc8 (25.Bc3 Nc3 26.dc3 Rf8 27.Qb5 Kd8+-) 25...Kf7 26.Qf5 Ke8 27.Bd4 Rg5 (27...Qc4 28.Ra1 Qc6 29.Ra8 Bd8 30.Qc8+-) 28.Qe4+- (28.Qe4 Qc4 29.h4+-) 1–0. GuestNQWL – GuestSWJH, freechess.org, 2019.

10.Qa4 Bd7 11.Nc3 Qc7 12.Be2 e5 13.cd5 cd5 14.0-0 Na6 15.d4 ed4 (15...e4 16.Ne5 Nb4 17.Rb1+/–) 16.Nd4 (16.Qd4 Nb4+=) 16...Nc5= 17.Qa2 The isolani on d5 becomes a target 17...Be6 18.Bb2 Nce4 ½–½. McKenna,James (1925) – Parmar,Amisha, Coventry op 1st, 2004.

10.Qc2 cb5 11.cb5 Nbd7=+.

10.Qc2 cb5 11.cd5 Nd5 (11...b4 12.Ng5 b3 13.Qb3 Qd5 14.Qd5 ed5 15.Bd3=) 12.Bb5 Qa5 (12...Bd7 13.Bd3 g6 14.0-0=) 13.Qa4= Qa4 14.Ba4 Bd7 (14...Nc6 15.Nc3=) 15.Bd7 Nd7 16.0-0 (16.Nc3!?=) 16...Ra8 17.Nc3 N7f6 (17...Nc3 18.Bc3 b5 19.Rc1=+) 18.Nd4 (18.Nd5 Nd5 19.Rb1 b5=+) 18...Bb4 (18...Nb4 19.Rb1=+) 19.Nb3 (19.Ndb5 Nb6=+) 19...h6 (19...Nc3 20.dc3 Bf8 21.c4=+) 20.Bb2 (20.Nd5 Nd5 21.Rb1 f5=+) 20...Nc3 (20...Bc3 21.Bc3 Nc3 22.dc3=+) 21.Bc3 (21.dc3 Ra2 22.Rb1 Bf8=+) 21...Bc3-/+ 22.dc3 Ra3 (22...Rc8-/+) 23.Nc5 (23.Rb1!?=+) 23...b6 (23...b5 24.Rb1 Nd5 25.g4 Nc3 26.Rb2-/+) 24.Nb7 Rc3 25.Rb1 g5 (25...Kf8 26.h3 Nd7 27.Nd6-/+) 26.h3 Ne4 27.f3 (27.Rb6 Rc1 28.Kh2 Nf2-/+) 27...Nd2 (better 27...Nf6-/+) 28.Rb2? (better 28.Rb6 Re3 29.Nd6=+) 28...Nc4-+ 29.Rb4 Ne3 (29...Rc1 30.Kh2 Ne3 31.Rb2-+) 30.Rb6 Rc2 31.g4 Rg2 32.Kh1 Rf2 0–1. Trkn – marloes, itsyourturn.com, 2000.

10.Qc2 cb5 11.Ng5 g6 12.cb5 Bd6 =.

10.Qc2 dc4 11.Bc4 c5 (11...cb5 12.Bb5 Bd6 13.0-0=) 12.0-0 b6 13.Ng5 (13.d4 Bb7+=) 13...h6 (13...Nbd7 14.d4=) 14.Bf6+= Threatening mate: Qh7 14...hg5 15.Bb2 (15.Be7 Qe7 16.Nc3 Bb7+=) 15...Bb7 16.d4 (16.Nc3 Bf6+=) 16...Bd5 (16...cd4 17.Bd4 Bd6 18.Rc1+=) 17.dc5 (17.Bd5 Qd5 18.Nc3 Qc4 19.dc5 Bc5+=) 17...Bc4 18.Qc4 bc5 19.Nc3 Qc7 20.Ne4 Attacks the isolani on c5 (20.Rb1 Rd8+=) 20...Nd7+= 21.g3 (21.Rd1 Rd8+=) 21...Nf6 (21...Rd8!?=) 22.Ng5+/– Rd8 23.Ne4 (23.Rc1 Qb6+/–) 23...Ne4 24.Qe4 Qd6 (24...Qa5 25.Qb7 Bd6 26.Ra1+/–) 25.Qc2 (25.Ra1!?+/–) 25…Qb6 (25...Qd3!? 26.Qa4 Rb8=) ½–½. Labahn,Wolfgang – Mehl, Espelkamp, 1980.

10.Qc2 c5 11.Be2 dc4 12.Bc4 b6 13.0-0 Bb7 14.d4 Bf3 15.gf3 Nbd7 16.Nd2 cd4 17.Bd4 Bc5 18.Nb3 Bd4 19.Nd4 Ne5 20.Be2 Qa8 21.Qc7 Qb8 (21...Ned7 22.Rd1=) 22.Qb8+= Rb8 23.Ra1 (23.f4 Ned7+=) 23...g5= 24.f4 gf4 25.ef4 Ng6 (25...Ned7 26.f5 e5 27.Nc6=) 26.f5+= Nf4 27.fe6 Ne2 28.Ne2 fe6 29.Nd4 Rd8 (29...e5!? 30.Nc6 Re8=) 30.Ne6+/- Rd5 31.Ra7 Rb5 32.Rg7 Kh8 33.Rf7 (33.Rf7 Ng8 34.f4+/-) 1-0. DEFFM – GuestGCXQ, freechess.org, 2021.

10.Qc2 Bd7 11.Bf6 Bf6 12.cd5 (12.d4 Qa5 13.Qc3 Qa2=+) 12...ed5 (12...cd5 13.Bd3=+) 13.Bd3= g6 14.0-0 cb5 (14...Re8 15.Nc3=) 15.Nc3 (15.Qb3 Bg4=) 15...Bg4=+ Black intends d4 16.Rb1 Bf3 17.gf3 d4 (17...Bc3 18.dc3 Qg5 19.Kh1=) 18.Ne4 Bg7 19.Rb5 (19.Bb5 Kh8 20.f4=) 19...de3 (19...b6!?=) 20.fe3+= Nc6 (20...b6 21.Bc4+=) 21.Rb7+- Ne5 (21...Na5 22.Rb5+-) 22.Be2 Qd5 (22...Qa8 23.Qb3+-) 23.Ra7 Qe6 24.f4 (24.d4 Qb6 25.Qa2 Bh6+-) 24...Rc8 (24...Nc6!? 25.Rb7 Nd8+-) 25.Rc7 Rc7 26.Qc7 Nd7 27.Ng5 Qf5 28.Bc4 Qg4 (28...h6 29.Bf7 Kh8 30.Be6 Qb1 31.Kf2 hg5 32.Qd7+- (32.Bd7?! Qd3+-)) 29.Kf2 1–0. DEFFM – GuestTZXL, freechess.org, 2018.

10.Qc2 Bd7 11.Ng5 g6 12.Nc3 =.

10.Nc3 Nbd7 11.bc6 bc6 12.Be2 Ba6 13.0-0 (13.cd5 Be2 14.Qe2 cd5=) 13...dc4 14.Qa4 Nc5 15.Qa2 Nd3?? (better 15...Bb5=+) 16.Qa6+- 1-0. onur604 (2320) - nietchess1 (2200), Casual Rapid game, lichess.org, 2021.

10.Nc3 Nbd7 11.Be2 e5 12.0-0 e4 13.Nd4 c5 14.Nf5 Nb6 (14...dc4 15.Qc2 Nb6 16.Ng3=) 15.Ne7 Qe7 16.cd5 Nbd5 17.Nd5 Nd5 18.d4 ed3 19.Qd3 Nb4 20.Qc3 f6 21.Bb2 b6 22.Ra1 (22.Rd1 Be6=) 22...Kh8 (22...Rd8 23.Qc4 Kf8 24.Ra8=) 23.Rd1+= Be6 24.e4 Rd8 25.Rd8 Qd8 26.e5 Na2? (26...f5 27.h3+=) 27.Qg3 (better 27.Qf3!? fe5 28.Be5+-) 27...f5+= 28.Qe3 Nb4 29.f4 Qd5 30.Kf2 Nc2 31.Qd3 Qd3 32.Bd3 Nb4 33.Be2 c4? (better 33...Kg8!?=) 34.Bd4+- Nd3 35.Ke3 Nc5?? (better 35...Bd7+-) 36.Bc5+- bc5 (36...Bd5+-) 37.b6 Bd5 38.Bf3 (38.Bf3 Bg8 39.b7 g5 40.b8Q h5 41.Bd5 gf4 42.Kf4 Kg7 43.Qg8 Kh6 44.Kf5 c3 45.Qg6) 1–0. DEFFM – newguest, freechess.org, 2019.

10.Be2 Qa5 11.Bc3 Qb6 12.bc6 bc6 13.cd5 cd5 14.0-0 Ne4 15.Bd4 Bc5 16.d3 Bd4 17.de4 Bf6 18.ed5 Rd8 19.Qc2 ed5 20.Nbd2 Be6 21.Rb1 Qd6 22.Nd4 Bd4 23.ed4 Nc6 24.Rb6 Rc8 (24...Bd7 25.Qc5 Qc5 26.dc5=) 25.Ba6+= Qc7? (better 25...Rc7+=) 26.Qc5+- (26.Bc8 Qb6 27.Be6 fe6=+) 26...Nd4 27.Qd4 Qc1 28.Nf1 (28.Nf1 Re8 29.Bd3+-) 1-0. Guest - Guest922, internet, 2020.

10.Be2 Qa5 11.Bc3 Qb6 12.bc6 Nc6 (12...Qc6 13.cd5 Qd5 14.Bf6 Bf6 15.d4=) 13.0-0 (13.d4=) 13...e5 (better 13...Bd7!?=) 14.Ne5+- Ne5 (14...Be6 15.d4+=) 15.Be5 Bf5 (15...Qe6 16.Bf6 Bf6 17.cd5 Qd5 18.Nc3+-) 16.Nc3 dc4 17.Bc4 Rc8 (17...Qc5 18.Bf6 Bf6 19.Qb3+-) 18.Nd5 (18.d3 Qc5 19.Bd4 Qc6+-) 18...Nd5 19.Bd5 Qg6 (19...Rd8 20.Qf3 Qg6 21.e4+-) 20.Qa4 (20.Bb7 Rc2+-) 20...b6 21.Qa7 Bf8 22.d4 Rd8 23.Bf3 Be4 (better 23...Rc8!?+-) 24.Be4+- Qe4 25.Qb6 f6?? (25...Qh4+-) 26.Qd8 (26.Qd8 fe5 27.Qe8+-) 1–0. Marcus – 4367, internet, 2018.

10.Be2 Qa5 11.Nc3 Nbd7 12.0-0 Ne4 13.Qc2+= Ndf6 14.Bb2 Bd7 15.Ra1 Qb6 16.Rb1 (16.Ne5 Nc3 17.Qc3 Be8+=) 16...Ra8 17.bc6 bc6? (better 17...Qc6 18.Ne4 Ne4+=) 18.Ne4+- Ne4 19.Bg7! Qc7 (19...Kg7 20.Qb2 Double attack (20.Rb6 Discovered attack; 20.Qb2 Decoy)) 20.Be5+- Qa5 21.d3 Nd6 22.h3 Nf5 (22...f6 23.Ra1 Qd8 24.Ra8 Qa8 25.Bb2+-) 23.Rb7 Bc8 24.Rb1 (24.Rc7 f6 25.cd5 Bd8 26.Rc6 Bb7+-) 24...Ba6?? (24...Bd7 25.e4 de4 26.de4 Nh4+-) 25.Ra1+- Qd8? (25...Qb6 26.e4 f6 27.ef5 fe5 28.fe6+- (28.Ne5?! Qd4 29.Ra5 Qe5=)) 26.d4 (better 26.cd5!? c5 27.de6 f6+-) 26...c5 27.cd5 (27.dc5 Bc5 28.cd5 Be2 29.Ra8 Qa8 30.de6 fe6 31.Qe2 Qc6+-) 27...Be2 28.Ra8 Qa8 29.Qe2 (better 29.de6 fe6 30.Qe2 cd4 31.ed4+-) 29...Qd5?? (better 29...f6 30.Bf4 Qd5+/-) 30.e4 Nd4 31.Bd4 (31.ed5?! Ne2 32.Kf1 Nc1+/-) 31...Qb3 (31...Qb7 32.Bc3+-) 32.Bb2 c4 (32...Bf8 33.Bf6 Qb1 34.Ne1+-) 33.Qd2 (33.Ne5 Bf6 34.Nc4 Bb2 35.Nb2 Qc3+-) 33...Qb7 (33...Qd3 34.Qd3 cd3 35.Bc3+-) 34.Qd4 f6 35.Nd2 c3 36.Bc3 Kf7 37.Nc4 White prepares e5 37...Qb1 (37...e5 38.Qd3+-) 38.Kh2 Qb5 (38...Qb8 39.e5 Qc7 40.Nd6 Bd6 41.ed6+- (41.Qd6?! Qc3 42.Qd7 Kg6+-)) 39.e5 Bc5 (39...Qd5 40.Qh4 f5 41.Qh7 Kf8 42.Nb6+-) 40.Nd6 Bd6 41.ed6 Qd7 (41...Qe5 42.Qe5 fe5 43.Be5 Kf8+-) 42.Qf6 Ke8 43.Qh8 (43.Qh8 Kf7 44.Qg7 Ke8 45.Qg8) 1-0. BeepBeepImAJeep - WahscheTT (2110), lichess.org, 2017.

10.Be2 cb5 11.cb5 Nbd7 12.0-0 Re8 13.Nc3 Bf8 14.d4 Nb6 15.Ne5 Nfd7 16.f4 f6 17.Nd3 e5 (better 17...Nc4 18.Rf3 Ba3=) 18.Qb3+/- ed4 19.Nd5 Nd5 20.Qd5 Kh8 21.Bd4 (21.Qd4?! Qa5+/-) 21...Qe7 22.Rc1 Nb8 23.Bf3 Rd8 24.Qe4 Qd7 25.Nc5 Qb5 26.Nb7 (26.Rb1 Qc6 27.Nb7 Qe4 28.Be4 Re8+-) 26...Re8 (better 26...Bf5 27.Qf5!? Qf5 28.Nd8 Qd7+=) 27.Qc6?? (better 27.Qd5 Qd5 28.Bd5+-) 27...Qc6 (better 27...Nc6 28.Bc6 Qe2-+) 28.Bc6 Nc6 29.Rc6 Bb7 30.Rc7 Ba6 (30...Re7 31.Rc1-+) 31.g4 Bd3 32.h4 White intends g5 32...h6 33.g5 (33.Kf2 Be7-+) 33...hg5 34.hg5 fg5 35.fg5 Kg8 36.Kf2 Bg6 (36...Kh7 37.Rc6-+) 37.Kf3 Re7 38.Rc8 Kf7 39.Bc5 Re8 40.Rc7 Kg8 41.Bd4 Be4 (41...Bh5 42.Kf2-+) 42.Kf2 (42.Kg4 g6-+) 42...Bg6?? (better 42...Kh7-+) 43.Kf3= ½-½. BeepBeepImAJeep (2490) - RL12 (2310), lichess.org, 2018.

10.Be2 Bd7 11.Qb3 dc4 12.Bc4 cb5 13.Bb5 Qa5 14.Bd7 Nbd7 15.Bf6 Bf6 16.0-0 b5 17.Nc3 b4 18.Ne4 Be7 19.Rc1 Ra8 20.d4 Qb6 21.Ned2 Ra3 22.Qb1 Rc3 23.Nb3 Qc6 24.Nfd2 Nb6 25.h3 g6 26.Rd1 Nc4 27.Kh1 Nd2 28.Rd2 Qc4 29.Rb2 Bh4 30.g3 Bg3 31.fg3 Re3 32.Kh2 Re2 33.Re2?? Qe2-+ 34.Kg1 Qf3 35.Nc5 Qg3 36.Kf1 Qf3 37.Kg1 Qe3 38.Kg2 Qd4 39.Nd3 Qe4 40.Kf2 h5 41.Qb3 Qd4 42.Ke2+= Qc3 43.Qb4 Qb4 44.Nb4 Kg7 45.Kf3 g5-+ 46.Nd3 f6 47.Nc5-/+ g4 ½–½. Barlag,Christoph (2095) – Winkelmann,Elena (2065), Werther Schloss op–A, 2008.

10.Be2 Bd7 11.bc6 Bc6 12.d3 dc4 13.dc4 Bb4 14.Kf1 Nbd7 =+.

10.Be2 Bd7 11.Ne5 cb5 12.Nd7 (12.cb5 Qb6=) 12...Nbd7 13.cd5 (13.cb5 Qc7=) 13...Nd5=+ 14.Bb5 (14.0-0 b4=+) 14...N7f6 (14...Qa5 15.Bd7 Qa1 16.0-0=+) 15.0-0= ½–½. Rohrbacher,Walter – Seyffer,Guenter, Baden–ch Sen, 2002.

10.Be2 Bd7 11.Ne5 dc4 12.bc6 Nc6 13.Nc4 =+.

10.Be2 Ne4 11.0-0 Bf6 12.Bf6 Qf6 13.Nc3 (13.d4!?=) 13...Nc3=+ 14.dc3 Qc3 15.Qa4 Nd7 (15...dc4!? 16.Bc4 Bd7=+) 16.bc6= bc6 17.Qc6 dc4 (17...Qb2 18.Re1 dc4 19.Qc4=) 18.Bc4 Nf6 19.Nd4 Bd7 20.Qc5?? (better 20.Qa6=) 20...Rc8-+ 21.Qe7 Qc4 22.Nf3 Bb5 23.Re1 Nd5 24.Qb7 h6 25.Ne5 Qc7 26.Qb5 Qe5 27.g3 Qc3 28.Rb1 (28.Rd1 Ne3! 29.fe3 Qe3 30.Kf1 Qf3 31.Ke1 Rc3 32.Rd8 Kh7-+) 28...Ne3! 29.fe3 Qe3 30.Kg2 (30.Kh1 Qe4 31.Kg1 Rc2-+) 30...Qe4 (30...Rc2 31.Kh3 Qd2 32.Rf1-+) 31.Kg1 Rc2 32.Qf1 Qe3 33.Kh1 Rf2 34.Rb8 (34.Qh3 g5 35.Rf1 Qe4 36.Kg1 g4 37.Qg4 Qg4 38.Rf2 e5-+) 34...Kh7 35.Qb1 (35.Rb1-+) 35...f5 36.Rb3 (36.Rh8 Kh8 37.Qb8 Kh7 38.Qh8 Kh8 39.h3 Qe1) 36...Qe5 (36...Qe2 37.Kg1 Rg2 38.Kh1 Rh2 39.Kg1 Qg2) 37.Qg1 Qd5 38.Rf3 Qf3 (38...Qf3 39.Qg2 Qg2) 0-1. TWW_LONDON (1890) - me_z (1880), lichess.org, 2020.

10.Be2 Ne4 11.Nc3 Nc3 12.Bc3 Bf6 (12...dc4 13.Bc4 cb5 14.Bb5=) 13.Bb4 (13.Bf6 Qf6 14.d4 dc4 15.Bc4 c5+=) 13...Re8= 14.d4 (14.cd5 ed5 15.d4 cb5=) 14...Be7 (14...dc4 15.Bc4 Bd7 16.Bd3=) 15.Be7+= Qe7 (15...Re7 16.0-0+=) 16.0-0 Qc7 (16...dc4 17.Bc4 cb5 18.Bb5+=) 17.c5 (17.Qb1 c5+/–) 17...b6 18.Qa4 (18.Qc2 cb5 19.Bb5 Bd7+=) 18...f6 (18...bc5 19.dc5 cb5 20.Qb5=) 19.bc6 (19.Qc2 e5+/–) 19...Nc6 (19...bc5 20.dc5 e5 21.Qb3+=) 20.Rb1 (20.cb6 Qb6 21.Bd3 g6+/–) 20...bc5= 21.dc5 Bd7 22.Rb6 (22.Qa6 Rb8 23.Rb8 Qb8=) 22...Ne5+= 23.Qb4 White begins to deal mighty blows 23...Nf3 24.gf3 Rc8 (24...Ra8 25.Bd3=) 25.Ba6 (25.c6!? Bc6 26.Ba6+=) 25...Ra8= 26.Rb7 Qd8 27.Qb6 Kf8?? (better is 27...Qe8=) 28.Qd6+- Ke8 (28...Qe7 29.Qe7 Ke7+-) 29.Bb5 f5 (29...Qe7 30.Bd7 Kf8 31.Rb8 Rb8 32.Qb8 Kf7+-) 30.Qd7 Qd7 1–0. Czada – Peschke, Braunschweig, 1987.

10.Ne5 Nbd7 11.bc6 Ne5 12.Be5 bc6 13.Be2 Ba6 14.cd5 (14.Qa4 Bc4 15.Bc4 dc4 16.Qc4 Nd7=+) 14...Be2 15.Qe2 cd5 (15...Qd5 16.Bf6 Bf6 17.0-0=+) 16.0-0= Bd6 17.Ba1 (17.Bd6 Qd6 18.Rc1 e5=) 17...Qc7 (17...Qe7!?=+) 18.Bf6= gf6 (18...Bh2? 19.Kh1 gf6 20.f4 Bf4 21.Rf4+-) 19.Qg4 Kh8 20.Qh4 f5 (20...Kg7 21.f4=) 21.Qf6 (21.Nc3 Qe7 22.Qd4 f6=) 21...Kg8 22.f4 Qe7 23.Qh6 (23.Qe7 Be7 24.Rc1 Rb8=) 23...Ra8 (23...Rc8 24.Nc3=) 24.Rf3 (better 24.Rc1=) 24...Qf8?? (better 24...f6=) 25.Rg3 Kh8 26.Qf6 (26.Qf6 Qg7 27.Qg7) 1–0. onur604 (2320) – Bingo64 (2000), lichess.org, 2020.

10.Ng5 Ne8 11.Nf3 dc4 12.bc6 b5-/+ (12...bc6?! 13.Bc4 c5 14.0-0=).

10.Ng5 h6 11.h4 (11.Nf3 Bd6+=) 11...Nbd7 (better is 11...dc4 12.Qc2 g6-/+ (worse is 12...hg5 13.hg5 g6 14.gf6 Bf6 15.Bf6 Qf6 16.bc6+=)) 12.Qc2? (12.Nf3 dc4 13.bc6 Nb6+=) 12...Re8?? (12...hg5 13.cd5 cd5 14.Bf6 Nf6 15.hg5-+) 13.f4? (13.Nf3 c5+=) 13...Nf8?? (better is 13...hg5!? 14.hg5 Ne4-+) 14.Qb2 (14.Nf3 Bd7+=) 14...Bd6 (14...e5!? 15.fe5 hg5 16.ef6 Bf6-/+) 15.Nf3+= Qa5 16.g4 Qb4 17.g5+= Qb2 18.Bb2 hg5 19.hg5 N6d7 20.d4+/– dc4 21.Bc4 Nb6+= 22.Bd3 Nd5 23.Ke2 cb5 Black fights for the Initiative 24.Bb5 Bd7 25.Bd3 Bc6= 26.Nbd2 Ra8 27.Ra1 Ra1 28.Ba1 Nd7 29.Nc4 Bf4!-/+ 30.g6 fg6 31.Bg6 Be3! 32.Be8 Bf4 33.Na5 N5f6 34.Bg6 Bd5 35.Bc2 b6 36.Nb3 Bc4 37.Kf2 Ng4 38.Kg1 Ne3 (38...Ne3 39.Nfd2 Nc2 40.Nc4 b5-+ (40...Na1?! 41.Na1 b5 42.Na3-+); better is 38...Bd5 39.Ne1-+) 0–1. Woerlein,Rene – Schmidt,Michael, Ostalb–ch Schwaebisch Gmuend, 1998.

12.d3 b6 13.Qc2 Bb7 14.0-0 Qc7 15.Nc3 Ra8.

12.d3 Qb6 13.0-0 dc4 14.Qc4 Qd6 15.d4 cd4.

12.d3 dc4 13.dc4 Qc7 14.Bd3 Rd8 15.0-0 Bd6.

12.d3 Qc7 13.Nc3 Nb6 (13...b6 14.0-0+= (14.cd5 ed5 15.0-0 Bb7) 14...Bb7 15.Qc2 Ra8; 13...Rd8 14.cd5 ed5 15.0-0 Qd6) 14.Qb3= (14.Qc2 Rd8 15.cd5 ed5) 14...Bd6 15.h3 (15.0-0 d4) 15...dc4 (15...Rd8=) 16.dc4 Nbd7 17.0-0 b6 18.Ng5 (18.Bb2 Bb7=) 18...h6 19.Nge4 Ne4 20.Ne4 Bh2 21.Kh1 Be5 (21...Bb7 22.f4 Be4 23.Kh2+=) 22.Nc3 (22.Qd3 f5 23.Be5 Ne5+=) 22...f5 (22...Bb7 23.f4 Bd6 24.Rd1=) 23.f4= Bf6 24.Qc2 g6 25.e4 (25.Bf3 Bb7=) 25...Bd4 26.ef5 gf5 (worse is 26...ef5 27.Nd5 Qd6 28.Bd4 cd4 29.Qd3+/–) 27.Bd3 (27.Qd2 Nf6=) 27...Nf6+= 28.Ne2 Ba1 29.Ra1 Nh5 30.Qd2= Bb7 31.Rf1 Qg7-/+ 32.Rf2 Ra8 33.Qe3 Ra1 34.Kh2+= Kf7 35.Bc2 Rf1 36.Bd3 Qa1 37.Rf1= Qf1 38.Qg1 Qg1 39.Kg1 Nf6 40.Nc3 ½–½. Bastholm,Niels Henrik – Van Damme, corr Castiglioni Cup (A.S.I.G.C.), 1980.

12.d3 Qc7 13.Nbd2 b6 14.cd5 ed5 15.0-0 Bb7 16.Rc1 Ra8 17.Qb3 Qb8 18.Bc3 Ra7 19.Ra1 Ra1 20.Ba1 Bd6 21.h3 Qa8 22.Bc3 h6 23.Qb2 Qb8 24.Nh4 Be5 25.d4 cd4 26.ed4 Bh2 27.Kh1 Bd6 28.Nf5 Bf8 29.Nf3 Ne4 30.Bd3 g6 31.Ne3 Qc7 32.Be4 de4 33.Ne5 Ne5 34.de5 Bg7 35.Ng4 (35.Bd4 Bf8+=) 35...Qc4 36.Bd4 Bc8 37.Ne3 Qe6 38.Qa1 Bd7 39.Qa8 Kh7 40.Qe4 Bb5 41.Qd5 Qe8 42.f4 Bc6 43.Qb3 b5 44.Qc2 (better is 44.Kg1!?=) 44...Qd7-/+ 45.Bb6 Qh3 46.Kg1 Qd7 47.Qc5 Be4 48.Qd6 Qc6 49.Bc5 Qb7 50.Kf2 Qc6 51.g3 (51.Kg1 Qa8 52.Qd7-/+) 51...Bh1 52.Qc6 Bc6 53.Nc2 g5 54.Nd4 Bd7 55.Kf3 Kg6 56.Ke4 gf4 57.gf4 f6 (57...h5 58.Be7-/+) 58.Kd5 White prepares the advance e6 (better is 58.e6!? Be8 59.f5 Kg5 60.e7=) 58...fe5-/+ 59.fe5 h5 60.e6 Be8 61.e7 h4 62.Kd6?? (better is 62.Bd6!?-/+) 62...h3 (62...Bd4 63.Bd4 h3-+) 63.Kc7?? (63.Nf3-+) 63...h2 64.Kd8 h1Q 0–1. Chirpii,Alexandru (1925) – Dumitrascu,Grigore (1785), Iasi ROM, World Amateur Ch, 2013.

12.d3 Bd6 13.0-0 dc4 14.dc4 Qc7 15.Qc2 Rd8.

11.Bc4 cb5 12.Bb5 Qa5 13.Nc3 Bb4 14.Be2 Bc3 15.Bc3+- (15.dc3?! Rd8 16.Qb1 Ne4=) 15...Qd8 (15...Qa2 16.0-0+-) 16.Qa1+- Nbd7 (16...b6 17.g4+-) 17.0-0 Re8 (17...b6 18.Qa7+-) 18.Bb5 b6 19.Rc1 Bb7 (19...Rf8 20.Qb2+-) 20.Bf6 gf6 (20...Nf6 21.Be8 Ne8 22.Qd4+-) 21.Qa7 Bf3 22.gf3 (22.Bd7?! Re7 23.gf3 Rd7=) 22...Ne5 23.Be8 Qe8 24.Qb7 b5 (24...Qb5 25.f4 Ng6 26.Rc8 Kg7+-) 25.Rc8 (25.Rc8 Qc8 26.Qc8 Kg7 27.Qb7+-) 1–0. Janek – Visitor, internet, 2017.

11.Bc4 cb5 12.Bb5 Qa5 13.Nc3 Bd7 14.Be2 (14.Qb1 Bc6=) 14...b5=+ 15.0-0? (better 15.Bb2=+) 15...b4-+ 16.Qb3 bc3 17.Bc3 Qc7 18.h3 (18.Be5 Bd6 19.d4 Rc8-+) 18...Nc6 19.Rc1 h6 (19...Qd6 20.Bf6 Bf6 21.Qd3 Qd3 22.Bd3-+) 20.Qa2 (20.Be5 Qa5 21.Ra1 Qd5-+) 20...Rc8 21.Qa1 Qd8 22.Ba6? (22.Bf6 Bf6 23.d4-+) 22...Ra8 23.Rc2 Nb4 (better 23...Nd5 24.Ra2 Ncb4 25.Ra5-+) 24.Bb4 Bb4 25.Ra2 Be7 26.d4 Nd5 27.Bf1 Ra2 28.Qa2 Nb4 29.Qb2 Bc6 30.Ne5 Ba8 31.Qa1 Nc6 32.Nd3 Nb4 33.Ne5 Nc6 34.Nd3 Bd6 35.Qa6 Nb4 36.Nb4 Bb4 37.Bd3 Be7 38.f3 Qb8 39.Qa1? (39.Qb5 Qc8 40.Qc4-+) 39...Qb7 (better 39...Bf3!? 40.Qf1 Bc6 41.Qf2-+) 40.Be2?? (40.Be4 Qb3 41.Qa8 (worse 41.Ba8 Qe3 42.Kh1 Bf6-+) 41...Bf8 42.Kf2 Qb2 43.Kg3=) 40...Bf6 41.Kf2 g6 42.Bd3 Qc8 43.Kg1 Kg7 44.Kf2 Bc6 45.Be2 Qc7 46.Qc1 (46.f4 Bd5 47.Qd1 g5 48.fg5 Bg5-+) 46...Qd6 (46...Qh2 47.Ke1 Bb7 48.g4-+) 47.Qc4 (47.f4 g5 48.fg5 Bg5-+ (48...hg5?! 49.Bf3 Bf3 50.Kf3-+)) 47...Qd5 (better 47...Qh2!? 48.Bf1 Bh4 49.Ke2-+) 48.Qa6 (48.Qd5 Bd5 49.Bd3 Bb3-+) 48...Bb7 (48...e5 49.Bc4 Qd7 50.de5 Be5 51.Qa2-+) 49.Qd3 (49.Qb5 Qb5 50.Bb5 e5 51.de5 Be5-+) 49...e5 50.de5 Qe5 51.Kg1 Qe7 (51...Qg3 52.Qd2-+) 52.e4 (52.Qd2 Qc5-+) 52...Be5 53.Bf1 (53.Qe3 Qb4 54.Qc1 Qb6 55.Kh1 Bc8-+) 53...Qc5 54.Kh1 Qd4 (54...Qf2 55.Qe2 Qg3 56.Kg1-+) 55.Qd4 Bd4 56.Kh2 h5 57.g3 Be5 58.Kg2 g5 59.Bd3 h4 60.gh4 gh4 61.Kf2 Bf4 62.Kg2 Kf6 63.Kf2 Ke5 64.Bc4 f6 65.Bf7 Bc8 66.Kg2 Be6 67.Bh5 f5 68.ef5 Bf5 69.Bg4 Bd3 70.Kf2 Kd4 71.Kg2 Ke3 72.Bh5 Ke2 73.Bg4 (73.Be8-+) 73...Ke1 74.Bh5 (74.Be6 Bf1 75.Kg1 Be3 76.Kh2 Kf2 77.Bg4 Bf4 78.Kh1 Bg2) 74...Bf1 75.Kg1 Be3 76.Kh2 Kf2 77.Bg4 Bf4 78.Kh1 Bg2 0-1. BeepBeepImAJeep (2640) - TheVeidtMethod (2490), lichess.org, 2018.

11.Bc4 cb5 12.Bb5 Nc6 13.0-0 Qb6 14.Nc3 Bb4 15.Be2 (15.Qa4 Bd6+=) 15...Rd8 16.Qc2 Bd6 (16...e5 17.Ne4 Ne4 18.Qe4 Bd2 19.Rd1=) 17.Ne4 Ne4 18.Qe4 Qb4 19.d4 Qa5 20.Bb2 Ne7 21.Ra1 Qd5 22.Qc2 Qc6 23.Qb3 Qc7 24.Rc1 Qb8 25.e4 Bf4 26.Ba6?? (better 26.Rc2+=) 26...Bc1 (better 26...ba6 27.Qb8 Bb8-+) 27.Bc1 b6 (27...Nc6!? 28.Bd3 Nd4 29.Nd4 Rd4 30.Bb2-+) 28.Bc4 Nc6 29.h3? (better 29.Qb5-/+) 29...Nd4-+ 30.Nd4 Rd4 31.Qc3?? (31.Be3 Re4 32.f3 Rh4-+) 31...Qd6 (better 31...Rd1 32.Bf1 Ba6-+) 32.Bb2 (32.Bb3 Qc5 33.Qc5 bc5 34.Be3-+) 32...Rd1 33.Bf1 e5 (33...Rf1 34.Kf1 Qd1 35.Qe1 Ba6 36.Kg1 Qe1 37.Kh2 Qf2 38.Bc3 Bf1 39.Bg7 Qg2) 34.Qg3?? (better 34.Qc8 Qd8 35.Qd8 Rd8 36.Be5+-) 34...f6 (better 34...Rf1 35.Kh2 f6 36.Qb3 Qe6 37.Qc2-+) 35.Ba3 (35.Qb3 Be6 36.Qb5 Qd7-+) 35...Qd7 (better 35...Rf1 36.Kh2 Qd1-+) 36.Qb3 Kh8 37.Qb6 (37.Qc4-+) 37...Qd8 (better 37...Qd3! 38.Qc6 Qf1 39.Kh2 Qh1 40.Kg3 Rd8-+) 38.Qb3?? (better 38.Qd8 Rd8 39.Bc4-+) 38…Ba6 0–1. GuestMXJR – guestIrene, freechess.org, 2017.

11.Bc4 cb5 12.Bb5 Bd7 13.Be2 Na6 14.0-0 Nc7 15.d4 Bc6 16.Ne5 Bb5 17.Nc3 Be2 18.Qe2 Nd7 19.Nd7 (19.Rd1 Ne5 20.de5 Qe8=) 19...Qd7 20.Rb1 Rb8 21.Nb5 Kf8 (21...Rc8 22.Nc7 Qc7 23.e4=) 22.Nc7 Qc7 23.g3 Bf6 24.Qb5 Be7 (24...Ra8 25.Kg2=) 25.Bb2 Qc6 26.Qb3 (26.Qe5!? Qe8 27.d5+=) 26...b5= 27.Rc1 Qd7 28.Bc3 Kg8 29.Bb4 Bb4 30.Qb4 h6 31.Rc5 g6 32.h4 h5 33.Kf1 Kg7 34.d5 (34.e4 Qa7=) 34...ed5 35.Qd4 Kg8 36.Rd5 Qc7 37.Rd7 Qc4 38.Qc4 bc4 39.Rc7 Rb4 40.Ke2 Kg7 41.Kf3 Kf6 42.Kf4 Ra4 43.e4 Ke6 44.f3 Rb4 (44...Kd6 45.Rf7 c3 46.Rf8=) 45.g4 hg4 (45...Kd6 46.Rc8=) 46.Kg4 (46.fg4 f6 47.Rc6 Kf7 48.g5 fg5 49.Kg5 Rb5 50.Kf4+/-) 46...Rb1 (better 46...Kd6!? 47.Rf7 c3=) 47.Rc4+/- Rg1 48.Kh3 Rf1 49.Kg2 Rb1 50.Rc5 Kf6 51.h5 gh5 52.Rh5 Ke6 53.Kg3 Rb4 54.Kf4 f6 55.Ra5 Rc4 56.Ra6 Kf7 57.Kg4 Rb4 58.f4 Re4 59.Kf5 Rb4 60.Rf6 Kg7 61.Re6 Kf7 62.Rf6 Kg7 63.Ra6 Kf7 (63...Rb5!? 64.Ke6 Kg6+/-) 64.Ra7+- Kf8 65.Kg5 Rb6 66.f5 Rc6 67.Ra8 Kf7 68.Ra7 Kf8 69.Rh7 Ra6 70.Rh4 Rb6 71.Re4 Ra6 72.Rd4 Rb6 (72...Ra7 73.Rd8 Kf7 74.Rd6+-) 73.Rg4 Ra6 74.f6?? (74.Rc4 Ra7+-) 74...Ra1?? (better 74...Kf7=) 75.Kg6 Rf1 76.Ra4 (better 76.Rg5+-) 76…Rg1= ½-½. BeepBeepImAJeep - Arcann01 (2185), IM BeepBeepImAJeep simul, lichess.org, 2017.

11.Bc4 Nbd7 12.0-0 Nb6 13.Be2 c5 14.d4 cd4 15.Nd4 (15.Bd4 Qd6+=) 15...Nfd5 16.Nd2 Bf6 (16...e5 17.N4f3 f6 18.Qb1=) 17.Ne4 Bd7 (17...Be7 18.Nf3=) 18.Nf6+= Qf6 19.Bf3 (19.Nf3 Qe7+/-) 19...Qe7 (19...e5!? 20.Bd5 Nd5=) 20.Qb3 Rc8 21.Bb2 Qc5 Attacks the isolani on b5 22.h3 (22.Rd1 Qc4 23.e4 Nc7+=) 22...Qd6 (22...e5 23.Rc1 Qd6 24.Rc8 Bc8 25.Ne2=) 23.Ba3 Qc7 24.Rc1 Nc4? (better 24...Qd8+=) 25.Be2+- Ndb6 26.Bb4?? (better 26.Bc4 Nc4 27.b6 Qb6 28.Rc4 Qb3 29.Rc8 (29.Nb3?? Rc4 30.Nd2 Rc2-+) 29...Bc8 30.Nb3+-) 26...e5= 27.Nf3 e4? (27...Bb5 28.Bc3 Ba4 29.Qa2=) 28.Nd2?? (better 28.Nd4+-) 28...Be6 (28...Nd2!? 29.Bd2 Qd6 30.Rc8 Bc8+=) 29.Ne4+/- Qd7 (29...Qe5 30.Qb1+/-) 30.Nc5 (better 30.Qd1+/-) 30...Rc5?? (better 30...Qb5 31.Ne6 fe6+=) 31.Bc5+- Nd2 (31...Nd6 32.Qd3 Ndc8 33.Bb6 Nb6 34.Qd7 Nd7 35.Rc8 Nf8 36.Rb8+-) 32.Qd3 (better 32.Qa3 Nc8 33.Rd1 h6+-) 32...Qd3 (32...Nb3 33.Rc2 (33.Bb6?! Nc1 34.Qc2 Ne2 35.Qe2 Qd5+/-) 33...Nc5 34.Rc5+-) 33.Bd3 Nd5 (33...Nb3 34.Rc2 (34.Bb6?! Nc1 35.Be4 Bd7+-) 34...Nc5 35.Rc5+-) 34.Rd1 (34.Ra1!? f5+-) 34...Nb3 35.Bd4 (better 35.Bc4 Nc5 36.Bd5 h6+-) 35...h6 (35...Nd4 36.ed4 g5 37.Ra1+-) 36.Bc4 (36.Be4!? f5 37.Bd5 Bd5 38.Bg7 Bc4 39.Bh6 Bb5+-) 36...Nd4 37.Rd4 (37.ed4?! Nc3 38.Rc1 Bc4 39.Rc3 Bb5 40.Rc8 Kh7+-) 37...Nb6 (37...Nc3 38.Rd8 Kh7 39.Be6 fe6 40.Rd6 Nb5 41.Re6+-) 38.Be6 (38.Rd8!? Kh7 39.Be6 fe6+-) 38...fe6 39.Rd6 (39.Rd8 Kf7+-) 39...Nc4 40.Re6 1-0. BeepBeepImAJeep (2710) - Meret (2215), lichess.org, 2015.

11.0-0 cb5 12.cb5 Bd6 13.d4 =.

11.0-0 Nb6 12.Qc2 dc4 (12...Nc4 13.bc6 bc6 14.Bc4 dc4 15.Bf6 Bf6 16.Qc4=) 13.Bc4 (13.bc6 Qc7=) 13...Nc4+= 14.Qc4 Bd7 15.Nc3 (15.Qf4 c5 16.Nc3 Qa5+=) 15...cb5 16.Nb5 Qa5 17.Nbd4 (17.Rb1 Rc8 18.Qf1 Bb5 19.Rb5 Qb5 20.Qb5 Rc1 21.Qf1 Rf1 22.Kf1 b5=) 17...Rc8 18.Nb3 (18.Qd3 Qd5 19.Qb1 b5+=) 18...Qd5 (18...Qb6 19.Bd4 Rc4 20.Bb6+=) 19.Qd5+= Nd5 20.Rc1 Rc1 21.Nc1 f6 22.Nd4 (22.e4 Nf4-/+) 22...e5 (22...Kf7 23.e4 Nf4 24.Ndb3-/+) 23.Ndb3+= b5 (23...Ba3 24.d4 e4 25.Ne2+=) 24.Bb2 (24.e4 Nf4+=) 24...b4 (24...Nb6 25.e4-/+) 25.Kf1 (25.e4 Nb6-/+) 25...Bb5 (25...Nb6 26.d4 Nc4 27.Ba1-/+) 26.Ke1 Bd6 27.h3 (27.d4 e4-/+) 27...Nb6 (27...Kf7 28.d4-/+) 28.g3 (28.e4 Nc4 29.Ba1 Na3-/+) 28...Nc4 (28...Na4 29.Ba1-/+) 29.Ba1-/+ Na3 30.Bb2 Kf7 31.Kd1 g5 32.d3 Ba4 33.Ba3 ba3 34.Kc2 h5 35.g4 hg4 36.hg4 Ke6 37.e4 Kd7 38.Kb1-/+ Bb5 39.Ka2 Kc7 40.Nd2 Bd7 41.f3 Be6 42.Ncb3 Kc6 43.Nc4 Bc4 44.dc4= Bb4 ½–½. Labahn,Wolfgang – Husemann,G, Verbandsklasse, 1981.

11.0-0 Nb6 12.cd5 cd5 13.d4 Bd7 14.Nbd2 Qa8 15.Qb3 Qa4 The isolani on b5 becomes a target 16.Bc3 (16.Qa4 Na4 17.Rc1 Ba3=) 16...Rc8 (16...Qb3 17.Nb3 Nc4 18.b6=+) 17.Rc1 (better 17.Rb1=) 17...Ne4 18.Bb2 Rc1 19.Bc1 Qb3 20.Nb3 Nc3 21.Bf1 Bb5 22.Na5 Bc6 (22...Ba6!?-+) 23.Nc6 (23.Ne5 Bd6=+) 23...bc6-/+ 24.Ne5 Na2 (24...c5!? 25.Ba3 Nca4-/+) 25.Nc6= Nc1 26.Ne7 Kf8 27.Nc6 Nb3 28.h4 Nd2 29.Bd3 Nbc4 30.Kh2 (worse 30.Bh7 g6-/+) 30...h6 31.Kg3 Nd6 32.Kf4 f6 33.f3 g5 34.hg5 hg5 35.Kg3 N6c4 36.Kf2 Nd6 37.Ke2 N2c4 38.e4 de4 (38...f5 39.ef5 ef5 40.Nb4=) 39.fe4+= Nb6 40.e5 fe5 41.de5 Nf7 42.Ke3 Nd5 43.Kd4 Nf4 44.Be4 Ne2 45.Ke3 Nc3 46.Bf3 Na4 (46...Nb5!?+=) 47.Bg4+/- Nb6 (47...Nc5!? 48.Kd4 Nh6 49.Kc5 Ng4+-) 48.Be6+- Kg7 49.Ke4 Na4 (49...Nh6+-) 50.Kf5 Nc5 51.Bd5 Nh6 52.Kg5 Nf7 53.Kf5 Nd3 (53...Nh6 54.Kf4+-) 54.e6 (54.Bf7 Kf7 55.e6 Kf8+-) 54...Nd6 55.Kg5 Ne8 (55...Kf8 56.Bf3+-) 56.e7 Ne1 57.g4 Nf6 (57...Nd3 58.Nd8+-) 58.Be6 (58.Nd4!? Ne8 59.Nf5 Kh7+-) 58...Nf3 (58...Ne4 59.Kf5 Nd6 60.Ke5+-) 59.Kf4 Nh4 60.Bd7! Ng6 (60...Nd7 61.e8Q Decoy) 61.Kg5 (61.Kg5 Ne7 62.Ne7 Nd7 63.Nf5 Kf7 64.Kf4=) 1-0. BeepBeepImAJeep (2520) - Artioucha (2240), lichess.org, 2015.

11.0-0 Nb6 12.Bf6 Bf6 13.c5 Nd7=.

11.0-0 Nc5 12.d4 Nce4 13.Nbd2 Bd7 14.Ne5 cb5 15.cb5 Nd6 16.Qb3 Qe8 17.Rb1 Nfe4 18.Ne4 Ne4 19.Rc1 Bf6 (19...Bh4 20.g3 Be7 21.Bb2=) 20.Bb2+/- b6 (20...Be5 21.de5 f6 22.f3+/-) 21.Nc6 Be7 22.Ne7 Qe7 23.Ba3 (23.f3 Nd2 24.Qa4+=) 23...Nd6?? (better 23...Qh4 24.g3 Qf6+=) 24.Qb4+- Ra8 25.Qd6 Qe8 26.Qb4 (26.Rc7 Bb5 27.Re7 Qc6+-) 26...h6 27.h3 Qd8 28.Qb3 Qe8 29.Bd6 f5 (29...Ra5 30.Bc7 Bb5 31.Bb6+-) 30.Bc7 Qg6 (30...Rc8 31.Qb4+-) 31.Bb6 f4 (31...Qg5 32.Bc7 Bc8 33.Be5+-) 32.ef4 Rb8 (32...Qe8 33.Bc7 Qc8 34.b6+-) 33.Bc7 White prepares the advance b6 33...Rf8 (33...Rb7 34.b6 Qe8 35.Ba6+-) 34.b6 e5 (34...Bc8 35.Be5 Bb7 36.Rc7+-) 35.de5 Rf4 (35...Qe4 36.b7 Qe2 37.Qd5 Kh8 38.Rb1+-) 36.Qd5 Be6 37.Qd8 Kh7 38.Bd3 Bf5 39.Bf5 Rf5 40.Qd3 (40.b7 Qg5 41.Qg5 Rg5+- (41...hg5 42.b8Q Rf4 43.Qb1 g6 44.Rc6 Rf5 45.g4 Rf2 46.Qg6 Kh8 47.Qh6 Kg8 48.Rg6 Kf7 49.Qg7 Ke8 50.Re6)) 40...Rg5 41.Qg6 Rg6 (41...Kg6?? 42.b7 Rf5 43.b8Q+-) 42.b7 Rc6 43.b8Q (43.Rc6 h5 44.e6 Kg6 45.b8Q Kf6 46.Qe8 Kf5 47.Qh5 g5 48.Qh7 Kf6 49.e7) 43...Rc1+- 44.Kh2 Rc6 45.Bd6 Rc4 46.Qb7 (46.e6 Rc1 47.Qb7 Rc8 48.Be5 Rc7 49.Qc7 Kg6 50.Qf7 Kg5 51.f4 Kh4 52.g3) 46...Rf4 47.Be7 (47.e6 Rc4 48.Bf8 Rc7 49.Qc7 Kg6 50.Qf7 Kg5 51.Be7) 47...Rf7 48.Qd7 (48.e6 Rf2 49.Bc5 Rd2 50.Bf8 Rg2 51.Kg2 Kg6 52.Qf7 Kg5 53.Be7) 48...Kg6 49.Qd3 (49.Qe6 Rf6 50.ef6 h5 51.f7 Kh7 52.f8Q g5 53.Qef5) 49...Rf5 50.Bd6 (50.e6 h5 51.g4 Kh7 52.Qf5 Kh8 53.Qh5 Kg8 54.Qf7 Kh7 55.Bf6 Kh6 56.Qg7) 50...Kf7 (50...Kh7 51.Qf5 Kh8 52.e6 Kg8 53.e7 g5 54.e8Q Kg7 55.Be5) 51.Qf5 Ke8 (51...Kg8 52.e6 Kh8 53.e7 g6 54.e8Q Kg7 55.Qfg6) 52.Qg6 (52.e6 g6 53.Qf8) 52...Kd7 53.Qg7 (53.Qe4 Ke6 54.Qc4 Kd7 55.Qd5 Kc8 56.e6 g6 57.Qa8) 53...Kc6+- 54.Qh6 Kd5 (54...Kb5 55.e6 Kc4 56.e7 Kc3 57.Qe3 Kc2 58.Qe2 Kc3 59.e8Q Kb3 60.Q8e6 Kc3 61.Q6e3) 55.Qf4 Ke6 (55...Kc6 56.Qc4 Kb7 57.Qb5 Kc8 58.e6 Kd8 59.Qd7) 56.Qf6 (56.Qc4 Kd7 57.Qd5 Ke8 58.e6 Kd8 59.Qa8) 56...Kd5 57.e6 (57.Qf7 Kc6 58.Qb3 Kd7 59.Qc4 Ke8 60.Qe6 Kd8 61.Qe7 Kc8 62.Qc7) 57...Ke4 (57...Kd6 58.e7 Kd7 59.Qe5 Kc6 60.e8Q Kb7 61.Qd7 Kb6 62.Qeb5) 58.e7 (58.Qf3 Kd4 59.e7 Kc4 60.e8Q Kd4 61.Qee4) 58...Kd3 59.Be5 (59.Qf3 Kc2 60.Qe2 Kc3 61.e8Q Kb3 62.Q8e6 Kc3 63.Q6e3) 59...Kc2 (59...Ke2 60.Qf3 Kd2 61.e8Q Kc2 62.Qec6 Kd2 63.Qcc3) 60.Bf4 Kd1 (60...Kb3 61.e8Q Kc4 62.Qfc6 Kb4 63.Qb8 Ka5 64.Qbb6) 61.Bg3 (61.Qc3 Ke2 62.e8Q Kf2 63.Qf3) 61...Ke2 (61...Kc2 62.e8Q Kb3 63.Qb5 Kc2 64.Qfb2 Kd1 65.Q5e2) 62.Qe5 (62.e8Q Kd1 63.Qa4 Kd2 64.Qfd4 Ke2 65.Qad1) 62...Kf1 (62...Kd3 63.Qb2 Kc4 64.e8Q Kd5 65.Qbe5 Kc4 66.Q8b5) 63.Qe3 (63.Qd4 Ke2 64.e8Q Kf1 65.Qd3) ½-½. BeepBeepImAJeep (2745) - Kirill_Klyukin (2715), lichess.org, 2020.

11.0-0 Qc7 12.Nc3 e5 13.cd5 cd5 14.Qb3 (14.Qc2 e4 15.Nd4 Nc5=) 14...Qd6 15.Rc1 Nc5 16.Qa2 (16.Qc2 d4 17.ed4 ed4=) 16...e4 (16...d4 17.ed4 ed4 18.Nb1=+) 17.Nd4= Be6 (17...Bd7 18.Qc2=) 18.Bb2 b6 19.Nc6 (19.Qb1 Ra8=) 19...Bd8=+ 20.Qa7 Bc7 21.Na4?? (better is 21.g3=) 21...Qh2 22.Kf1 Qh1# 0–1. Fredek (2090) – Ogelb, Freundschaftspartie, 5m + 0s, 2005.

11.0-0 Qc7 12.d4 cb5 13.cb5 Nb6=.

11.0-0 Qc7 12.d4 e5?? 13.de5+- Ne4 14.cd5 cd5 15.Qd5 Ng5 (better 15...Ndc5!?+-) 16.Ng5 Bg5 (16...Nb6 17.Qd2 Bg5+-) 17.e6 fe6 (17...Qc5 18.Rd1 fe6 19.Qe6 Kh8 20.Rd7 Qc1 21.Bf1 Bd7 22.Qd7+-) 18.Qg5 Nf6 19.Nd2 Bd7 20.Nf3 Qb6 (20...Qc2 21.Re1+-) 21.Bd4 Qd6 (21...Qc7 22.Ne5 Be8 23.b6+-) 22.Bc5 Qc7 23.Bf8 Kf8 24.Qe5 Qd8 (24...Qe5 25.Ne5 Be8 26.Rc1+-) 25.Rd1 Qe7 26.h3 (26.Qb8 Be8+-) 26...h6 (26...Nd5 27.Bc4+-) 27.Qd6 (better 27.Qb8 Qe8 28.Qb7 Nd5+-) 27...Kf7 (27...Qd6 28.Rd6 Ke7 29.Rd2+-) 28.Qe7 (better 28.Ne5 Ke8 29.Qb8 Qd8 30.Qb7+-) 28...Ke7 29.Ne5 Be8 30.Bf3 Nd5 (30...Bb5 31.Rb1 Bc6 32.Nc6 bc6 33.Rb7 Kf8 34.Bc6+-) 31.Bd5 ed5 32.Rd5 Ke6 33.Rc5 (better 33.e4!? Kf6+-) 33...Kd6 34.Rc8 (34.Nd3 b6 35.Re5 Bf7+-) 34...Bb5 35.Nf3 (35.f4 Ba4+-) 35...Bc6 (35...Be2 36.Rg8+-) 36.Rg8 g5 (36...Ke6 37.Rg7 Kf6 38.Rc7+-) 37.Rg6 Kc5 38.Rh6 b5 39.Nd4 b4 (39...Bd5 40.Rg6 b4 41.Rg5+-) 40.Rc6 Kd5 41.Rb6 Kc5 42.Rb5 Kc4 43.g3 b3 44.Rb3 g4 45.Kg2 (45.hg4 Kd5 46.g5 Ke5 47.f4 Kd5 48.g6 Kc5 49.g7 Kd5 50.g8Q Kd6 51.Qd8 Kc5 52.Ne6 Kc6 53.Rb6) 45...gh3 46.Kh3 Kc5 47.Kg4 Kd5 48.Kf3 Kc4 49.Ke4 (49.g4 Kc5 50.g5 Kc4 51.g6 Kc5 52.g7 Kd5 53.g8Q Kd6 54.Qd8 Kc5 55.Ne6 Kc6 56.Rb6) 49...Kc5 50.Rc3 Kb4 51.Rc6 Ka5 (51...Ka3 52.Kd3 Kb2 53.Rc2 Kb1 54.Ne2 Ka1 55.f4 Kb1 56.Nc3 Ka1 57.Ra2) 52.Kd3 Kb4 53.g4 Ka4 (53...Ka5 54.Kc4 Ka4 55.Ra6) 54.Kc3 Ka5 55.Kc4 Ka4 56.Ra6 1-0. BeepBeepImAJeep (2470) - cristiancastro (2020), lichess.org, 2017.

11.0-0 Ne4 12.d3 Nd6 13.d4 (13.bc6 bc6 14.Qc2 dc4 15.dc4 Qc7+=) 13...Nf6 (13...Nc4 14.bc6 bc6 15.Bc4 dc4 16.Qc2=+) 14.bc6 bc6 (14...Nc4 15.Bc4 dc4 16.Qa4=) 15.c5+= Nde4 (better 15...Nb5!?+=) 16.Ne5+/- Nd7 (16...Qc7!? 17.f3 Nc5 18.dc5 Bc5+/-) 17.Nc6+- Qe8 18.Nd2 Nd2 19.Ne7 Qe7 20.Qd2 Nb8 21.Bb5 (21.Rb1 Ba6+-) 21...Bd7 (21...Ba6 22.Ba6 Na6 23.Qd3+/-) 22.Qd3 (22.Bd3 Nc6+-) 22...Nc6 (22...Bb5 23.Qb5 Rc8 24.Rb1+/-) 23.Rb1 Rb8 (23...Na5 24.Ba6+/-) 24.Ba4 Rc8 25.f4 (25.Bc2 f5+-) 25...g6 26.Rb6 Be8 27.Qa6 Qc7 28.Rb7 (28.Bc2 Qd8+-) 28...Qd8+/- 29.Bc3 (29.Bc6!? Bc6 30.Rb1+/-) 29...Ra8+= 30.Qb5 Nd4? (better 30...Qc8 31.Rb6 Nd4+=) 31.Qe8+- Qe8 32.Be8 Ne2 33.Kf2 Nc3 34.Bf7 Kf8 35.Be6 Ne4 (35...Re8 36.Rf7 Kg8 37.Re7 Kf8 38.Re8 Ke8 39.g4+-) 36.Kf3 Nc5 37.Rb6 (better 37.Rh7 Ra1 38.Bd5+-) 37...Ne6 38.Re6 Rd8 39.Ke2 Kf7 40.Re5 Rd6 (better 40...d4!?+/-) 41.Kd3+- Re6 (41...Rb6 42.Rd5 Rb2 43.Rg5+-) 42.Rd5 Ra6 43.Ke2 (43.Rd7 Kg8+-) 43...Ra2 44.Rd2 Ra5 45.Kf3 Kg7 (45...h5 46.e4+-) 46.Re2 (46.Rd7 Kg8+-) 46...h6 47.e4 Kf6 48.Re3 Ke6 49.g3 h5 50.h4 Ra1 51.Rd3 Rf1 52.Ke3 Ra1 53.Kd4?? (better 53.e5+-) 53...Ra4+/- 54.Ke3 Ra5?? (54...Ra1 55.e5 Ke7+-) 55.Rd4 Ra4 (55...Ra3 56.Kf2 Ra2 57.Kf3 Ra3 58.Kg2 Ra2 59.Kh3 Rb2+-) 56.Kf2 (better 56.Ra4 Kf7 57.Ra7 Kf8 58.Ra6+-) 56...Ra2?? (better 56...Rd4 57.Kf3 Rd3 58.Kf2 Rb3-+) 57.Ke3?? (better 57.Kf3+-) 57...Ra3 (57...Ra4 58.Ra4 Kf7 59.Ra7 Kf8 60.Ra6+-) 58.Rd3 Ra2?? (better 58...Ra1=) 59.f5! gf5 60.ef5 (60.Rd5 fe4 61.Rh5 Ra3 62.Ke4 Rg3+/-) 60...Kf5+/- 61.Kf3 Ra1 62.Re3 Rf1 63.Kg2 Kg6?? (63...Rc1 64.Rb3+/-) 64.Rf3 (better 64.Kf1 Kf5 65.Re7+-) 64...Rf3 65.Kf3 Kf5 66.Kg2 Kg4 67.Kf2 Kf5 68.Kf3 Ke5 69.g4 hg4 70.Kg4 Kf6 71.Kh5 Kg7 72.Kg5 Kh8 73.Kh6 Kg8 74.Kg6 Kh8 75.Kh6 Kg8 76.Kg5 Kh8 77.Kh5 Kg8 78.Kg4 Kh8 79.Kh3 Kg8 80.Kg3 Kh8 81.h5 Kg8 82.Kg4 Kh8 83.Kh4 Kg8 84.Kg5 Kh8 85.Kf5 Kg8 86.Kf4 Kh8 87.Kg4 Kg8 88.Kg3 Kh8 89.Kf3 Kg8 90.Kg4 Kh8 91.Kh4 Kg8 92.Kh3 Kh8 93.Kg4 Kg8 94.Kg5 Kh7 95.h6 Kh8 96.Kh5 Kg8 97.Kg6 Kh8 98.Kg5 Kg8 99.Kf6 Kh7 100.Kg5 Kh8 101.Kg4 Kg8 102.Kh4 Kh8 103.Kh5 Kg8 104.Kg6 Kh8 105.h7 ½-½. BeepBeepImAJeep (2685) - Staroftheyears (2355), lichess.org, 2020.

11.0-0 Re8 12.d4 Nf8 13.Nbd2 (13.c5 cb5 14.Ne5 Bd7=) 13...Bd7 14.Qb3 Ng6 15.Ne5 Ne5 16.de5 Ne4 17.Ne4 de4 18.Rd1 Qc8 (better 18...cb5!? 19.cb5 Qc7+/-) 19.Qb1+- Rd8 20.Qe4 (20.Bd4 c5 21.Bc3 Qa8 22.Qe4 Qa4+-) 20...Be8 (20...cb5 21.cb5 Bb5 22.Rd8 Qd8 23.Bb5 Qd1 24.Bf1 Qa1 25.Qb7+/-) 21.Qb1 (21.Bd3 g6 22.Qf3 b6+-) 21...Rd1+/- 22.Qd1 Qd7 23.Qd7 Bd7 24.Bd4 Kf8 25.f4 Ke8 26.Kf2 Kd8 27.Ke1 Kc7 28.Kd2 b6 29.Kc2 c5 30.Bc3 Bc8 31.Bf3 Bd7 32.Kd3 Kd8 33.Be4 h6 34.g4 g6 35.Be1 Bf8 36.Bh4 Kc7 37.Bf6 Kc8 38.h4 Kc7 39.Bf3 Kc8 40.e4 (40.h5 gh5 41.gh5 Kc7+-) 40...Kc7 41.Bg2 Kc8 42.Bh3 Kc7 43.f5 ef5 (43...Bc8 44.Ke3+-) 44.ef5 Kc8?! (44...Bc8 45.e6! gf5 46.gf5 fe6 47.fe6+-) 45.Ke4 (45.e6!? Be6 46.fe6 fe6+-) 45...Kc7 46.Kf4 (46.e6 gf5 47.gf5 fe6 48.fe6 Be8+-) 46...Kc8 (46...Bc8 47.Bg2 Bd7 48.fg6 fg6 49.Bd5+-) 47.Bg2 (47.e6!? g5 48.Ke5 gh4+-) 47...Kc7 48.Bd5 Be8 49.e6 fe6 (49...Bd6 50.Kf3 fe6 51.fe6+- (51.Be6?! gf5 52.gf5 Bh5 53.Ke4 Bd1+-)) 50.Be6 (worse 50.fe6 Kd6+-) 50...gf5 51.Be5 (51.gf5?! Bh5+-) 51...Kd8 52.Kf5 (52.Bf5?! Bf7 53.Bd3 Kd7+-; 52.gf5?! Bh5 53.Bd5 Kd7+-) 52...Be7 53.g5 hg5 54.hg5 Bh5 55.g6 Ke8 (55...Bf8 56.Bf6 Ke8 57.Bf7 Kd7 58.Bd5+-) 56.g7 Bf7 57.g8Q (better 57.Bf4!? Bd8 58.g8Q Bg8 59.Bg8 Kd7+-) 57...Bg8 58.Bg8 Kd7 59.Bd5 (better 59.Be6!? Ke8+-) 59...Bd6 60.Bd6 Kd6 61.Kf6 Kd7 62.Ke5 Kc7 (62...Ke8+-) 63.Ke6 Kd8 64.Kd6 Kc8 65.Kc6 Kb8 66.Kb6 Kc8 67.Kc5 Kb8 (67...Kc7 68.b6 Kd7 69.Bc6 Ke6 70.b7 Kf7 71.b8Q Kg6 72.Be4 Kg7 73.Qe5 Kf7 74.Bh7 Kf8 75.Kd6 Kf7 76.Qe7) 68.Kb6 (68.b6 Kc8 69.Kd6 Kb8 70.c5 Kc8 71.c6 Kb8 72.c7 Kc8 73.b7) 68...Kc8+- 69.c5 Kb8 Black threatens to counter with c6 70.c6 (70.Be6 Ka8 71.c6 Kb8 72.c7 Ka8 73.c8Q) 70...Kc8+- 71.c7 (71.Kc5 Kc7 72.b6 Kc8 73.Kd6 Kb8 74.c7 Kc8 75.b7) 71...Kd7 72.Kb7 Kd6 73.c8Q Ke5 74.Qc5 Kf6 75.b6 (75.Bc6 Kg6 76.Kc7 Kf6 77.b6 Kg6 78.Be4 Kf7 79.Qf5 Kg8 80.Qg6 Kf8 81.Bd5 Ke7 82.Qf7) 75...Kg7 (75...Kf5 76.Kc7 Ke5 77.b7 Kf4 78.Qf2 Kg5 79.Qg3 Kh6 80.Bf7 Kh7 81.Qg6 Kh8 82.b8Q) 76.Ka6 (76.Qe7 Kg6 77.Be4 Kh5 78.Qg7 Kh4 79.Bf3 Kh3 80.Qg4 Kh2 81.Qg2) 76...Kf6 (76...Kg6 77.Be4 Kf6 78.Qf5 Ke7 79.b7 Kd6 80.b8Q Ke7 81.Qbf8) 77.Ba8 (77.Qd6 Kf5 78.Qg3 Kf6 79.b7 Kf5 80.b8Q Kf6 81.Qbe5) 77...Kg7 78.b7 (78.b7 Kf7 79.Qh5 Kf6 80.b8Q Ke7 81.Qbe5 Kd7 82.Qhe8; 78.Qg5 Kf7 79.Bd5 Ke8 80.Qe5 Kd7 81.Bf7 Kc8 82.Qc7) 1-0. BeepBeepImAJeep (2675) - malkingoesmvp (2310), lichess.org, 2016.

10.cb5 0-0 11.Nc3 Bd7 12.Be2 Qb6 13.0-0 Bc8 14.Qb3 Nbd7 15.Bb2 Nc5 16.Qc2 Na4?? (16...Bd7 17.d4 Nce4 18.Rc1=) 17.d4 (better 17.Na4 Qd8 18.Ng5+-) 17...Nc3 18.Bc3 Bd7 19.Qb3 Rc8 20.Ne5 (20.Bb4 Bb4 21.Qb4 Ne4=) 20...Be8 21.Bb2 Bd6 22.h3 (22.Bd3 Ne4 23.Be4 de4=) 22...Be5 (22...Ne4!? 23.Nf3 Bb8=) 23.de5+= Nd7 24.Bd4 Nc5?? (better 24...Qd8+=) 25.Qb4+- Qc7 26.Rc1?? (better 26.b6 Qb8 27.Bc5 Qe5 28.Bd4+-) 26...b6+/- 27.Bf1 (27.e4+/-) 27...f6? (27...Qe7 28.Rc3+=) 28.Qb2 (better 28.ef6!? gf6 29.Bf6+/-) 28...f5 29.Qa3 Qb7 (better 29...Qe7!?=) 30.Bc5+/- Ra8 31.Qb4 bc5 (31...Qc7 32.Qd4 bc5 33.Rc5+/-) 32.Qc5+- Ra5?? (better 32...Rd8+-) 33.Qc8 Qa8 (33...Qc8 34.Rc8 Ra1 35.Re8 Kf7+-) 34.Qe6 Bf7 35.Qc6 (35.Rc8 Qc8 36.Qc8 Be8 37.Qe8) 35...Ra1 (35...Be8 36.Qc8 Ra1 37.b6 Qc8 38.Rc8+-) 36.Qa8 (better 36.Ra1 Qc6 37.bc6+-) 36...Ra8 37.b6 Rb8 38.b7! Rb7 39.Rc8 Be8 40.Re8 Kf7 41.Rd8 Re7 (41...Ke6 42.f4 Rb6 43.Be2+-) 42.Rd5 Ke6 (42...g6 43.f4+-) 43.Bc4 Rd7 (43...g6 44.f4 Rg7 45.Ra5 Ke7 46.Ra7 Kf8 47.Ra8 Ke7 48.Bg8+-) 44.Rc5 Ke7 45.f4 (45.e6!? Rb7 46.Rf5 Rc7 47.Rf7 Kd8+-) 45...Rd1 46.Kf2 Rc1 47.Kf3 Rc4 (47...g6+-) 48.Rc4 1-0. BeepBeepImAJeep (2620) - zrosp (1925), lichess.org, 2017.

10.cb5 0-0 11.Nc3 Nbd7 12.Be2 Nb6 13.0-0 Bd7 14.d4 Bb4 (14...Qc7 15.Ne5=) 15.Qb3 Qe7 16.Ne5 Bc3 (16...Ra8 17.Rc1=) 17.Bc3+= Ne4 (better 17...Ra8+=) 18.Bb4+- (18.Nd7?! Qd7 (18...Nd7? 19.Bb4 Qg5 20.Bf8 Nf8 21.Qc2+-) 19.Ba5 Nc4 20.Bc4 dc4 21.Qc4 Nd6+=) 18...Nd6 19.Qa3 Nbc8 20.Rc1 f6 21.Rc8! Rc8 (21...Nc8 22.Be7 Pinning (22.Be7 Deflection; 22.Be7 Remove defender); 21...Bc8 22.Bd6 Remove defender; 21...Rc8 22.Bd6 Remove defender) 22.Nd7 Rc1?? (better 22...Qd7 23.Bd6 Qd8+-) 23.Qc1 Qd7 24.Qc5 1-0. BeepBeepImAJeep (2585) - YesFX (1975), lichess.org, 2016.

10.cb5 0-0 11.Be2 Bd7 12.0-0 Qa5 13.Bc3 Qd8 14.Ne5 Ne4 15.Bb2 Bf6 16.Bd4 Qc7 17.f4 Rc8 18.Nc3 Nc3 19.dc3 Be8 20.e4 de4 21.Qb1 Nd7 22.Qe4 Ne5 (better 22...Nc5!? 23.Qb1 b6=) 23.fe5+- (worse 23.Be5 Be5 24.fe5 Bb5 25.Bb5 Qc5 26.Qd4 Qb5-/+) 23...Be7 24.Bd3 g6 25.g3 Bc5 26.c4 Bd4 27.Qd4 Qc5 28.Rf4 Kf8 29.Kg2 Qd4 30.Rd4 Ke7 31.Rd6 Rd8 (31...Rc7 32.Rb6+=) 32.Rd8+- Kd8 33.c5 h6 34.Kf3 Ke7 35.Ke3 f5? (better 35...g5+-) 36.ef6!+- Kf6 37.b6 1–0. DEFFM – GuestNYDP, freechess.org, 2018.

10.cb5 0-0 11.Be2 Bd7 12.0-0 Ne4 13.Bd3 Qa5 The isolani on b5 becomes a target 14.Bc3 Nc3 15.Nc3 Bf6 16.Qc2 Rc8 17.Nd4 (17.Bh7!? Kf8 18.Bd3=) 17...g6 18.Qb2 Bd4 19.ed4 Qb6 20.Na4 Qd6 21.Nc5 b6 22.Nd7 Nd7 23.Rc1 Rc1 24.Qc1 Qf4 25.Qc3 Nf6 26.Be2 Ne4 27.Qe3 Qc7 28.g3 Qc1 29.Kg2 Qd2 30.Kf3 (better is 30.h3!?-/+) 30…Qe3 ½–½. Hal1958 – Schnitzly, playchess.de, 2004.

10.cb5 Bd7 11.Nc3 Qb6 The isolani on b5 becomes a target 12.Be2 0-0 13.0-0 Ne8 14.Qb3 Nd6 Increasing the pressure on the isolated pawn on b5 15.Na4 Qa5 16.Bc3 Qc7 17.Rc1 b6 (17...Rc8 18.d4=) 18.Bb2 Qb7 19.Bd4 Attacks the isolani on b6 19...f6 (better 19...Rc8!? 20.Ra1 Bd8+=) 20.Bb6+/- e5?? (better 20...Rc8 21.Rc8 Bc8+-) 21.Rc7+- Qa8 (21...Be6 22.Rb7 Nb7 23.Nc3+-) 22.Ra7 Qa7 23.Ba7 (better 23.Qd5 Kh8 24.Ba7 Rd8+-) 23...e4 (23...Be6 24.d4 e4 25.Nd2+-) 24.Nd4 Nc4 (24...Kh8 25.Qd5 Rd8 26.Bb6+-) 25.Bc4 dc4 26.Qc4 Kh8 27.Bb8 (better 27.Qd5 Bb5 28.Qb5 Bd6+-) 27...Be8 (27...Rb8 28.Qf7 Bb5 29.Nb5+-) 28.Bg3 Bf7 29.Qc7 Ba3 30.h3 (30.b6 Bd5+-) 30...h6 31.b6 Kh7 32.b7 Bd6 33.Qd6 (33.Bd6 Bg8 34.Bf8 Bf7 35.Qf7 f5 36.Qg7) 33...Re8 34.b8Q (better 34.Nb6 Rg8 35.Nc8 f5+-) 34...Rb8 35.Qb8 Bg6 (35...Ba2 36.Qb7 Kg8 37.Nf5 Bf7 38.Qa8 Kh7 39.Qf8 Kg6 40.Qg7 Kf5 41.Qg4) 36.Qc7 (36.Qf8 Bf7 37.Nf5 Kg6 38.Qg7 Kf5 39.Qg4) 36...Bf7 (36...Bh5 37.Ne6 Bf7 38.Qf7 f5 39.Qg7) 37.Ne6 (37.Qf7 Kh8 38.Nf5 g6 39.Qg7) 37...Be6+- 38.Qe7 Bf5 39.Bh4 Bg6 40.Bf6 h5 (40...Bf7 41.Qf7 h5 42.Qg7) 41.Qg7 1-0. BeepBeepImAJeep (2605) - darksighed1 (1670), lichess.org, 2017.

10.cb5 Bd7 11.Be2 0-0 12.Nc3 b6 13.0-0 Bc8 14.d4 Nbd7 15.Ne5 Ne5 16.de5 Ne4 (better 16...Nd7!?=) 17.Ne4+/- de4 18.Qd4 (18.Qd8 Rd8 19.Bd4 Bc5+/-) 18...Qc7 (18...Bb7!?+=) 19.Qe4+/- Bc5 (19...Bb7 20.Qb1+/-) 20.Bf3 (20.Bd3 g6+-) 20...f5 (20...Rd8!?+/-) 21.ef6!+- Rf6? (21...gf6 22.Bd4 Decoy) 22.Bf6 gf6 23.Rd1 f5 (23...Bd6+-) 24.Qc6 Qc6 25.Bc6 Kf7 26.Rd8 e5 27.Rc8 Ke6 28.Re8 Kd6 29.Rh8 f4 30.Rh7 (30.ef4 ef4 31.Rh7 Ke6+-) 30...fe3 31.fe3 Be3 32.Kf1 Kc5 33.Ke2 Bd4 34.Kd3 Kb4 (34...Kd6 35.g4 Ke6 36.h4+-) 35.Ke4 Kc3 (35...Bb2 36.g4 Bc1 37.h4+-) 36.g4 Kd2 37.g5 Kc3 38.g6 Kb4 39.g7 Bc5 40.g8Q Bd4 (40...Bf8 41.Qf8 Kc3 42.Rh3 Kb2 43.Qf2 Kc1 44.Re3 Kd1 45.Re1) 41.Rh4 (41.Kd3 Bc3 42.Qc4 Ka3 43.Kc3 e4 44.Ra7) 41...Kc5 (41...Ba1 42.Kd3 e4 43.Re4 Bd4 44.Qa2 Kc5 45.Qa3) 42.Qd5 (42.Kd3 e4 43.Re4 Kb4 44.Qa2 Kc5 45.Qa3) 42...Kb4 43.Kd3 Ka5 (43...Ka3 44.Kc2 Kb4 45.Qb3 Kc5 46.Qa3 Kc4 47.Qc3) 44.Rd4 (44.Qb3 e4 45.Kd4 e3 46.Qa3) 44...ed4 45.Qa2 (45.Qd4?!) 45...Kb4 46.Qb2 (46.h4 Kc5 47.Qa3) 46...Kc5 (46...Ka4 47.h4 Ka5 48.Qa3) 47.Qd4 1-0. BeepBeepImAJeep (2660) - dominic88 (1875), lichess.org, 2017.

10.Nc3 0-0 11.Be2 dc4 12.bc6 Nb6 (12...bc6 13.Bc4 c5 14.d3=) 13.Ne5 Qc7 (13...Bd6!? 14.Nc4 Nc4 15.Bc4 bc6=) 14.Nb5+/– (worse is 14.Nc4 Nc4 15.Bc4 Qc6+=) 14...Qd8 15.Nc4 (15.Bd4!?+/–) 15...bc6 (15...Nc4 16.Bc4 bc6 17.Nd4=) 16.Nd4 Qc7 (16...Bd7 17.0-0=) 17.Qb3 (17.Nb6 Qb6 18.Qb3 Qc7=) 17...Nc4 18.Qc4 The isolani on c6 becomes a target 18...Bb7 (18...c5 19.Nf3=) 19.0-0 (19.Bf3 Rb8=) 19...Rc8 (19...c5 20.Nf3=) 20.Rc1 The pressure on the isolated pawn grows (better is 20.d3=) 20...Bd6 (20...c5 21.Nf3=) 21.h3 (better is 21.Ne6!? fe6 22.Qe6 Kh8 23.Bf6 Bh2 24.Kh1+-) 21...Nd5 (21...e5 22.Nf5+=) 22.Nf3 (22.Bf3 Qd7=) 22...Ra8 23.Qd4 (23.Qg4 e5=) 23...f6 (23...e5 24.Qh4=) 24.Bc4 (24.Qh4 Qd7=) 24...c5 (24...Qe7 25.Qg4=) 25.Qd3 (25.Qg4 Qe7=) 25...Qe7 26.Qb3 Kf7 27.e4 Nb4 28.e5+= White gets the initiative 28...Bc7 29.Re1 f5?? 30.Be6!+- Kf8 31.Bf5 g6 32.Be6 Rd8 33.Bc4 Bc6 34.e6 (34.e6 Ke8 35.Qc3+-) 1–0. Junge,W – Gleichmann,HG, corr, 1975.

10.Nc3 Nb6 11.bc6 bc6 12.cd5 (12.Ne5 Qc7 13.d4 Nbd7=) 12...cd5 13.Bb5 (13.Be2 Bd7=) 13...Bd7 14.Ne5 Bb5 15.Nb5 0-0 16.0-0 Ne4 (16...Qe8 17.Qb3=) 17.d3 (17.Bd4 Bc5=) 17...Nd6 (17...Qe8 18.Nd4 Nc5 19.Qg4=) 18.Nc6 Qd7 19.Ne7 Qe7 20.Bg7! Kg7 21.Qg4 Kh8 22.Qd4 f6 23.Qb6 Nf5 (23...Nb5 24.Qb5 Rg8 25.Rc1+-) 24.Nc7 (24.Ra1 Rc8+-) 24...Ng7 (24...Nd6 25.Rc1 Rc8 26.Rc6+-) 25.Rc1 Qa3 (25...Rc8 26.Rc5+-) 26.Qb1 (26.Re1 Qe7+-) 26...Rc8 27.Rc6 Ne8 28.Nb5 Qa8 29.Rc8 Qc8 30.g4 e5 31.h3 h5 (31...Kg8 32.Qb3 Qb7 33.Nd4 Qb3 34.Nb3+-) 32.f3 Ng7 (32...Qb8 33.Nc3 Qb1 34.Nb1+-) 33.Kf2 Ne6 (33...f5 34.Qb2 hg4 35.fg4 fg4 36.hg4+-) 34.gh5 Ng5 35.Qf1 (35.Nd6 Qh3 36.Qb8 Kh7 37.Qb7 Kh6 38.Qd5 Qh2 39.Ke1 Qh1 40.Kd2 Kh5=) 35...Qc2 36.Kg3 Qd2 37.h4 (37.Nc7 d4 38.ed4 Qf4 39.Kg2 ed4 40.Nb5=) 37...Ne6= 38.Qh3 (38.e4 Nf4=) 38...Qe1 39.Kg2 Qe2 40.Kg3 Qe1 41.Kg2 Qe2 42.Kg3 Ng7 43.h6 Nh5?? (better 43...Qe1 44.Kh2 Qf2 45.Qg2 Qh4 46.Qh3 Qf2 47.Kh1 Qe1 48.Kg2 Qd2 49.Kg3 Qe1 50.Kg4 f5 51.Kg5 Qe3 52.Kf6 Qb6 53.Ke5 Qb8 54.Kf6 Qd8 55.Ke5 Qb8 56.Kf6 Qf8 57.Kg6 Qe8 58.Kg5 Qe3 59.Kf6 Qe6 60.Kg5 Qe3 61.Kf6 Qe6 62.Kg5 Qe3=) 44.Kg4+- f5 (44...Nf4 45.ef4 e4+-) 45.Kh5 Qd3 (45...e4 46.Nd6 Qe3 47.Qf5 Qf3 48.Qf3 ef3 49.Kg6 f2 50.Nf7 Kg8 51.h7 Kf8 52.h8Q Ke7 53.Qd8 Ke6 54.Qd6) 46.Qg2 (46.Qg2 Qb5 47.Qg7; 46.Qg3 Qb5 47.Qg7) 1–0. DEFFM – GuestVMWG, freechess.org, 2018.

10.Be2 0-0 11.0-0 dc4 12.Bc4 Nb6 13.Be2 Bd7 14.Nc3 Nfd5 (14...cb5 15.Nb5 Bc6 16.Qb1=) 15.Ne5 Nc3 16.dc3 f6 (16...cb5 17.Nd7 Qd7 18.Qd7 Nd7 19.Bb5=) 17.Nd7 Qd7 (17...Nd7 18.c4+=) 18.Qb3 Re8?? (better 18...Bc5+=) 19.bc6+- Qc6 (19...Qc7 20.Qe6 Kh8 21.cb7 Qb7+-) 20.Bb5 Qc8 (20...Qd5 21.Qd5 ed5 22.Be8+-) 21.Be8 Nd5 22.Bh5 1–0. DEFFM – GuestXJHV, freechess.org, 2018.

10.Be2 Qa5 11.Nc3 dc4 12.Bc4 cb5 13.Bb5 0-0 14.0-0 Nc5 15.d4 (15.Qb1 Na6+=) 15...Nce4 (15...Bd7 16.Be2 Na4 17.Qb3=) 16.Ne4 (16.Qb3 Qa3 17.Qa3 Ba3+=) 16...Ne4 (16...Qb5!? 17.Nf6 Bf6=) 17.Bd3+= Nd6 18.Qc2 g6 19.Bc3 Qc7 20.Rb1 Bd7 21.Qb2 Bc6 22.Ne5 Nc4?? (better 22...Bd5+=) 23.Bc4 Bf6 (23...Be4 24.Rc1+-) 24.Nc6 Qc6 25.Bf1 Qd5 (25...Rc8 26.Bd2+-) 26.Qb7 1-0. BeepBeepImAJeep (2590) - ambrozije (1655), lichess.org, 2017.

10.Ne5 Ne5 11.Be5 Bd7 12.Qb3 0-0 13.Be2 Ne8 (13...dc4 14.Bc4 cb5 15.Bb5+=) 14.b6 f6 15.Bg3 Bc8 (15...Bc5 16.d4 Qb6 17.Qb6 Bb6 18.Nd2+=) 16.0-0 (16.d4 Rf7+=) 16...Bd6 (16...d4!?=) 17.d4 dc4 18.Bc4 Qe7 19.Nd2 Bg3 20.fg3 Kh8 21.Ra1 Nd6 22.Qb4 Nf5 (22...Re8 23.Ra8 Qd8 24.Bb3+=) 23.Qe7+/– Ne7 24.e4 Bd7 25.Nb3 Nc8 26.Nc5 Nb6 27.Nd7 (worse is 27.Ne6 Re8 28.Nc5 Nc4 29.Nd7 Kg8-/+) 27...Nd7 28.Be6 Nb8 29.Ra8 g6 30.g4 Re8 31.Kf2 Kg7 32.d5 Kf8 33.Ra7 Re7 34.Ra8 (34.Bc8 Rc7 35.Bb7+/–) 34...Re8= 35.Ra7 ½–½. Peter,Falco – Ullrich,Helmut (1710), Karl Mala mem op 9th, 2005.

(--> 7...c5 8.bc6 bc6).

9.Bc3 Qa4 10.Bd3 (10.Bd4 Nbd7=) 10...cb5 (10...Nbd7 11.bc6 bc6 12.Ne5=) 11.Bf6+= gf6 12.Nd4 Bd7 13.Bb5 Bb5 14.Nc3 Qc4 15.Ndb5 (worse 15.Ncb5 e5-/+) 15...Bb4 16.Qa1 (16.h3 Nd7=) 16...Na6= 17.f4 Ke7 18.Kf2 Bc3 19.Nc3 Rd8 (19...d4 20.Qa3 Qb4 21.Qb4 Nb4 22.Rb1 dc3 23.Rb4 cd2 24.Rb7 Kd6 25.Ke2+-) 20.Rb1+= Rd7 21.Qa3 Ke8 22.Rb6 Nc5? (better 22...Qc7 23.Qb2 f5+=) 23.d3+- Qc3?? (23...Nd3 24.cd3 Qd3 25.Rb7 Rb7 26.Qa8 Ke7 27.Qb7 Kf8 28.Qb4 Kg8+-) 24.Qc3 (24.Qc3 Rc7 25.Qf6+-) 1–0. GuestYTZJ – GuestZFXM, freechess.org, 2018.

9.Bc3 Qb6 10.bc6 bc6 11.Be2 (11.Bf6 gf6 12.d4 Rg8=) 11...Be7 12.0-0 Ba6 (12...0-0 13.Ne5=) 13.d3 0-0 14.Nbd2 Nbd7 15.Qa1 Ra8 16.Rb1 Qc7 17.h3 (17.Ne5 Qd6=) 17...Bb7 (17...c5 18.Qb2=) 18.Qb2= Rb8 19.Nb3 Ba6 (19...c5 20.Ne5=) 20.Ba5 (20.Ra1 Bc8=) 20...Qd6 21.Qa1 (21.Bc3 c5=) 21...Bb5 (21...c5 22.c4=+) 22.Bc3 (22.c4 Ba6=) 22...Ne8 (22...c5 23.Ne5=) 23.Ne5 Bf6 (23...c5 24.Nd7 Qd7 25.Be5=) 24.f4 (24.Nd7 Bc3 25.Qc3 Qd7=) 24...c5= 25.Bf3 (better is 25.Bh5 Be5 26.fe5=) 25...d4 (better is 25...Qc7=) 26.ed4+- Be5 (26...cd4 27.Nd4 Ba6 28.Rb8 Nb8 29.Qa5+-) 27.de5 Qb6 28.Ba5 Qa7 29.Kh2 f6 30.Qc3 fe5 31.fe5 Qc7?? 32.Bc7 Nc7 1–0. Fredek (2090) – Cholerik, Freundschaftspartie, 5m + 0s, 2005.

9.Nc3 c5 10.Be2 Bd7 11.0-0 c4 12.d3 (better is 12.Ne5!?=) 12...Bb4-/+ (< 12...Bb5 13.Nb5 Qb5 14.dc4 dc4 15.Bf6 gf6 16.Qd4+/–) 13.Nd5 ed5 14.dc4 dc4 15.Bf6 gf6 16.Qd4 Bc3 (16...Bb5 17.Qe4 Kf8 18.Rb1-/+) 17.Qd6=+ Qd8 18.Rd1 Ba5 (18...Qc8 19.Bc4 Qc4 20.Qb8 Qc8 21.Qc8 Bc8 22.Rd3-/+) 19.Qg3 (better is 19.Bc4 Bc7 20.Qc5=) 19...Qe7?? (better is 19...c3=+) 20.Qb8+- Bd8 21.Qb7 Be6 (21...c3 22.Rd3+-) 22.Qc6 Bd7 23.Qc4 0-0 (23...Rg8 24.Qd3+-) 24.Qh4 Bf5 25.Bd3 Bg6 26.Nd4 Qb4 27.Qh6 Bc7 (27...Bd3 28.cd3 Re8 29.Qh3+-) 28.Nf5 (28...Bf5 29.Bf5 Bh2 30.Kh2 Qf4 31.ef4 Re8 32.Rd7 Re1 33.Qh7 Kf8 34.Qf7#) 1–0. Kreuzer,Uwe – Boudza, GER, 1990.

9.Nc3 Bd6=+ 10.Be2 0-0 11.0-0 Nbd7 (11...e5 12.Bb2=+) 12.Bb2 (12.bc6 bc6 13.Nd4 Ba6=) 12...c5 (12...e5 13.Qa1 Qc7 14.bc6 bc6 15.Ba3=+) 13.Qa1= Qc7 14.Qa7 (14.Qa2 b6=) 14...Nb6 (14...e5!?=+) 15.Na4= Na4 16.Qa4 (16.Bf6 Nb6 17.Bc3 Nd7=) 16...c4 (16...e5!? 17.b6 Qe7=) 17.Bf6+= gf6 18.d3 e5 (better is 18...cd3!? 19.Qg4 Kh8 20.cd3 Qc2=) 19.dc4+/– e4 20.Nd4 (20.Nd2 Bh2 21.Kh1 d4+/–) 20...Bh2 (20...dc4!? 21.Qc4 Bh2 22.Kh1 Qc4 23.Bc4 Be5+=) 21.Kh1+/– Qe5? (21...Be5 22.cd5 f5 23.Qc4+/–) 22.f4?? (better is 22.cd5 Kh8 23.Qc4+-) 22...ef3+/– 23.Nf3 Qe3 24.Nh2 Qe2 25.cd5 Re8 26.c4+/– Qe4 27.Qb3 Qh4 28.Qc3 Re5 29.Kg1 Rh5 30.Nf3+- Qg3 31.Qf6 Bf5?! 32.Re1 Qb8 33.b6 Qc8 34.Qd4 Bd7 35.c5 f6 36.Rc1 Qe8 37.Re1?? Qf7?? 38.c6!+- Bc8 39.d6 bc6 40.b7! Qb7 41.Re8 Kf7 42.Re7 (42...Qe7 43.de7 Ke7 44.Qe4 Kf7 45.g4+-) 1–0. Dziedzic,F – van Duske, corr ICCF EU–H–GT–8, 1975.

9.Nc3 Be7 10.Be2 0-0 11.0-0 =.

9.Nc3 Be7 10.Be2 Bd7 11.Ne5 0-0 12.Nd7 Nfd7 13.0-0 Rc8 14.Bb2 Bb4 15.Qa1 Qc7 16.Nb1 (16.Qa4 Bd6 17.Qh4 Ne5+=) 16...f6 (16...cb5 17.Bb5 Qc2 18.Bg7=) 17.c3 Bd6 18.f4 e5 19.g3 (19.fe5 fe5 20.c4 e4=) 19...Nc5 (19...e4 20.Bg4=) 20.Na3 (20.fe5 fe5 21.c4 e4=) 20...Re8 (20...e4 21.c4=+) 21.bc6 bc6 (< 21...Qc6 22.Bb5 Qc8 23.Qa2+/–; 21...Nc6?! 22.fe5 fe5 23.c4+=) 22.c4 (22.fe5 fe5 23.c4 Nbd7=) 22...d4 (22...ef4 23.gf4 Ne4 24.Qc1=+) 23.ed4 (23.fe5 fe5 24.Bh5 Re7=) 23...Nb3 (23...ed4 24.Bf3=+) 24.Qd1 (24.Qa2 Ba3 (24...ef4? 25.c5 Re2 26.Qb3 Qf7 27.Qf7 Kf7 28.cd6+-) 25.Qa3 A) 25...ed4? A1) < 26.Qb3 Re2 27.Bd4 Re8+/– (27...Rd2?? 28.Qe3 Qd7 29.Qd2+-); A2) 26.Bh5 g6 27.Qb3 gh5 28.Bd4+-; B) 25...Nd4=) 24...Nd4=+ 25.Bd4 ed4 26.Nc2 c5 27.d3 Nc6 28.Na3 Re3 29.Nb5 Qe7 30.Bf3 Nb4 31.Be4 g6 32.f5 gf5 33.Bf5 Bb8 34.Be4+/– Qg7 35.Rf3 Qg5?? 36.Rf5+- Qg6 37.Rc5 Rg3?? 38.hg3 Qg3 39.Kf1 Qf4 40.Qf3 Qc1 41.Kf2 Qd2 42.Kf1 Qc1 43.Kg2 Qd2 44.Qf2 Qg5 45.Rg5 (45...Kf7 46.Nd4 h6 47.Rf5 Kg7 48.Rf6 Bf4 49.Qf4 h5 50.Ne6 Kg8 51.Rf8) 1–0. pumpkin (2430) – sbwiik (2415), net–chess.com, 2004.

9.Bf6 gf6 10.bc6 bc6 11.c4 Ba6 12.cd5 Bf1 13.Kf1 cd5 (worse 13...ed5 14.d4+=) 14.g3 Bd6 15.Kg2 Nd7 16.Qc2 0-0 17.Qc6 Qc7 18.Rc1 (18.Qc7 Bc7 19.Rc1 Ba5=) 18...Rc8= 19.Nd4 (19.Qc7 Rc7 20.Rc7 Bc7=) 19...Ne5 (19...Qc6 20.Rc6 Rc6 21.Nc6=) 20.Qc7 Rc7 (20...Bc7? 21.Nb5 Nc4 22.d3+- (22.Nc7?! Rc7 23.Kg1 Ra7=)) 21.Rc7 Bc7 22.f4 Nd3 23.Kf3 e5 (better 23...Kg7!?=) 24.Nc6+/- e4 25.Kg4 Kg7 (25...Bd6+-) 26.Nc3 Nf2 (26...Bd6 27.Nd5 Kg6 28.Nce7 Be7 29.Ne7 Kg7 30.Nc8+-) 27.Kf5 h5 (27...d4 28.ed4 Bd6 29.d5+-) 28.Nd5 Bd6 29.Nf6 (29.Nf6 Kh6 30.Nd8+-) 1-0. DEFFM – didiboy, freechess.org, 2020.

10.Bd3 Bc3 11.Nc3 (worse 11.dc3 c5-/+) 11...c5 12.0-0 c4 13.Be2 Bd7 14.Qa1 Qb6 15.Qa3 Ng8 (15...Bb5? 16.Rb1+-) 16.d3 Ne7 (16...cd3 17.cd3 Ne7+/- (17...Bb5?? 18.Rb1 Qa6 19.Nb5 Qa3 20.Na3+-)) 17.dc4+- dc4 18.Ne4 Nf5 (18...Nc8 19.Bc4 Qc7 20.Qb4+-) 19.g4 Bb5?? (19...Ne7 20.Ne5 Nc8 21.Nc4 Qa7+-) 20.gf5 Bc6 (20...ef5 21.Nd6 Kd7 22.Ne5 Kc7 23.Nb5 Qb5 24.Qe7 Nd7+-) 21.Nd6 Kd7 22.Ne5 Kc7 23.Ndc4 Qa6 24.Qd6 (24.Qd6 Kc8 25.Qe7+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

10.Be2 0-0 11.Bf6 gf6 12.bc6 Nc6 13.c3 Bd6 14.d4 e5 15.0-0 Be6 16.Nh4 Kh8 17.Bg4 Rg8 18.Bf5 Ne7 19.Be6 fe6 20.f4 ef4 21.ef4 Ng6 22.Ng6 Rg6 23.Qe2 f5 24.Qe3 b5 25.Nd2 b4 26.cb4 Qb4 27.g3 Qb8 28.Kh1 Kg8 29.Rb1 Qc7 30.Nf3 h6 31.Qe2 Kh7 32.Nh4 Rf6 33.Kg2 Bf8 34.Ra1 Bg7 35.Ra6 The backward pawn on e6 becomes a target 35...Qc8 36.Nf3 Qd7 37.Ne5 Qb7 38.Kh3 Qc8 39.Ra7 Qb8 40.Rd7 Qe8 41.Rb7 h5 42.Qa6 h4 43.Qa7 Qh8 44.Rf7 Rf7 45.Qf7 hg3 46.Nd7 Kh6? 47.Qe6+- Kh7 48.Qf7 Kh6 49.hg3 Bd4 50.Nf8 Qg7 51.Qf5 Ba1 52.Ne6 Qh8 53.Kg4 Qe8 54.Kh4 Qe7 55.Kh3 Qf6 56.Qd5 1–0. Fels,Bernhard (2030) – Mitrovic,Sinisa (1770), CP–2009–P–00047, 2009.

10.Bf6 gf6= 11.Nd4 Rg8=.

10.Bf6 gf6= 11.Be2 cb5=+ 12.Nd4 Bd7 13.0-0 e5 (13...Be7 14.Bd3=+) 14.Nb3= Qc7 15.Bf3 (15.Nc3 Bc3 16.dc3 Qc6=) 15...Bc6 16.d3 (16.Nc3!? Qd6 17.e4=) 16...Nd7 17.Bg4 Rg8 18.N1d2 Nc5 (18...b6 19.Bf5=+) 19.Nc5 Bc5 20.Bf5 h6 (20...Bd7 21.Qh5 Rg5 22.Bd7 Qd7 23.Qf3=+ (23.Qh7? Qg4 24.g3 Rh5-+)) 21.Qh5= Bf8 (21...Rg5 22.Qh3=) 22.Ra1 Rg5 23.Ra8 (23.Qh3 Ke7+=) 23...Ke7=+ 24.Qh3 Rf5 25.Qf5 Bd7 26.Qf3 Qc2 27.Nf1 Qd3 28.Rb8 Bc6?? (better 28...Qc4=+) 29.Qg4+- h5? (29...Qe4 30.Qc8 Bg7 31.Qc7 Ke6+-) 30.Qb4+- Ke6 31.Qf8 b4 (31...d4+-) 32.Qb4 Bb5 33.Qe1 Ba6 (33...Bc6 34.Rh8+-) 34.Rh8 Qg6 (34...Qe2 35.Qe2 Be2 36.Ng3+-) 35.Ng3 f5 (35...h4 36.Rh4 Qc2+-) 36.Qa5 f4 37.Qb6 Ke7 (37...Kd7 38.Rd8 Ke7 39.Nf5 Qf5 40.Qd6) 38.Qd8 Ke6 39.Re8 1–0. GuestYPGY – GuestLGMN, freechess.org, 2019.

10.Bf6 gf6 11.Be2 e5 12.bc6 Nc6 13.0-0 0-0 14.Nh4 Be6 (14...f5 15.c3 Be7 16.g3=+) 15.Bg4= Be7 (better 15...Qa2!?=) 16.Bf5+- Bf5 (16...Bb4!?+-) 17.Nf5+- Kh8 18.Nc3 (18.Qh5 Qd8 19.f4 e4+-) 18...Qd8 (18...Rg8!?+-) 19.Qh5+- Bb4?? (better 19...Qd7+-) 20.Nd5! Rg8 (20...Qd5 21.Qh6 Combination) 21.Qf7 Qf8 22.Qb7 Nd8 (22...Qc8 23.Qc8 Rc8+-) 23.Qb4 (23.Qb4 Qb4 24.Nb4+-) 1–0. GuestJVKF – Crestfall, freechess.org, 2020.

9.Bb5 Nc6 10.0-0 Bd7 11.d3 Bd6 12.Nbd2 0-0 13.c4 dc4 14.Nc4 Nb4 15.Bd7 Qd7 16.Bf6 gf6 17.Qa1 Be7 18.Qc3 Nd5 19.Qa5 Bd8 20.Qa7 Be7 21.Rb1 Nc3 22.Rb7 Qd6 23.Nd6 1–0. Tranrovers – Nautiluschess, ICS blitz, 2000.

9.Bb5 Nc6 10.c4 Bb4 (10...Bd6 11.Qa4 0-0 12.Bf6 Qf6 13.Nc3=) 11.Qa4 Qa5 12.Bc6 bc6 13.Qa5 (13.Qc6!? Ke7 14.Bd4+=) 13...Ba5= 14.0-0 0-0 (14...Ba6 15.Bc3 Bc7 16.Na3=+) 15.cd5 cd5 16.Nc3 (16.Bc3 Bb6=) 16...Ba6=+ 17.Rb1 h6 (17...Ne4 18.h3-/+) 18.Na4 (18.Ne5 Bc7 19.Nc6 Bd3=+) 18...Rc8 (18...Ne4 19.Bc3 Bc7 20.Ra1-/+) 19.Bc3=+ Bd3 20.Rb7 (20.Ra1 Bc7=+) 20...Bc3 (20...Ne4 21.Ne5 Ba6 22.Ra7 Bc3 23.dc3-/+) 21.Nc3=+ (21.dc3?? Ra8-+) 21...Ne4 22.Ne5? (better 22.Rb3!?=+) 22...Nd2-+ 23.Nf7?? (better 23.Nd7-+) 23...Rc3 24.h3 (24.f3 Rc1 25.Kf2 Nc4-+) 24...Rc1 25.Kh2 Nf1 26.Kh1 Ne3 27.Kh2 Nf1 28.Kh1 Be4 29.Ne5 Ne3 30.Kh2 0–1. yodamo – mantova, ChessWorld.net, 2010. (=1.Nf3 Nf6 2.b4 e6 3.b5 d5 4.Bb2 c6 5.a4 a6 6.e3 ab5 7.ab5 Ra1 8.Ba1 cb5)

9.Bb5 Nc6 10.Ne5 Qa5 11.Nc3 Bd7 12.Nd7 Nd7 13.0-0 Bd6 14.Qg4 (14.Be2 0-0=) 14...0-0= 15.Nd5 f6?? (better 15...Nce5 16.Qe2 ed5=) 16.Qe6+- Kh8 17.c4 Be5 18.d4 Bd4 (18...Nc5 19.Qf5 Qa8 20.Qc2+-) 19.Bd4 (better 19.ed4 Qd8+-) 19...Nd4 (19...Nde5 20.Bc5 Ra8 21.Nf6+-) 20.ed4 Nb6 (20...Nb8 21.Qe7 Qd8 22.Qb7+-) 21.Nb6 1–0. DEFFM – GuestSPQX, freechess.org, 2018.

9.Bb5 Nc6 10.Ne5 Qc7 11.Nd3=.

9.Bb5 Nc6 10.Ne5 Bd7 11.Nd7+= Qd7 12.Bf6 gf6 13.0-0 e5? (13...Bg7!?+=) 14.Qf3+/- Be7 (14...Bg7 15.Nc3 e4 16.Qh5+-) 15.Nc3+- 0-0 (better 15...e4!? 16.Qh5 f5+-) 16.Nd5 1-0. DEFFM – GuestNJJH, freechess.org, 2021.

9.Bb5 Bd7 10.c4 dc4 11.Bc4 Bd6 12.Qb3 Qc7 (12...Bc6 13.Ne5 Be5 14.Be5=) 13.0-0 (13.Bf6 gf6 14.Nc3 Bc6+=) 13...Nc6 (13...Bc6!? 14.Bb5 Nbd7=) 14.Bf6+= gf6 15.Bb5 Rg8 (15...f5 16.Rc1+=) 16.d4 Na5 17.Bd7 Kd7 (17...Qd7 18.Qc3 Qc7 19.Qd3+=) 18.Qb5+- Nc6 (18...Ke7 19.Nbd2+-) 19.d5+- ed5 20.Nc3 Qa5 21.Qb7 Ke6?? (better 21...Bc7 22.Qb3 Ne7+-) 22.Qc6+- h5 (22...Rd8 23.Nd4 Ke7+-) 23.Nd4 Ke7 24.Nd5 (24.Nd5 Qd5 25.Qd5+-) 1–0. onur604 (2320) – joseigal (2045), lichess.org, 2020.

10.Nc3 Bd6 11.0-0 0-0 12.Qb1 Na6 13.Bd7 Qd7 14.Nb5 Bb8 (14...Be7 15.Ne5 Qc8 16.Rc1=) 15.Ne5 (15.Bf6 gf6 16.Qb2 Rc8+=) 15...Qe7 16.Qb2 (16.d3 Rc8=) 16...Qb4 (16...Rc8 17.Rc1=) 17.Nf3 Qb2 18.Bb2 Rc8 (18...Ne4 19.Rb1=) 19.Bf6 gf6 20.c3 Rc6 (20...Nc5 21.Rb1=) 21.Rb1 Nc5 22.Nbd4 Ra6 23.Kf1 Kf8 24.Ke2 Ke7 (24...Ra2 25.h3=) 25.Nc2 Kd6 26.d4 (26.Nfd4 Kd7+=) 26...Ne4= 27.Rb7 Bc7 (27...Nc3? 28.Kd3+-) 28.Nd2 Nc3 29.Kd3 Na4 (29...Nd1 30.f3 Rc6 31.Na1=) 30.Rb1 (30.e4 Rc6 31.Ne3 Rc3 32.Ke2 Kc6+=) 30...Rc6= 31.Rb3 Rb6 ½–½. Wasl,Ernst – Kotissek,Robert, Bayern, 1995. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.e3 cb5)

10.c4 dc4 (10...Bb5 11.cb5 Bd6 12.Be5=+) 11.Qa4 Be7 12.Ne5 Bb5 13.Qb5 Nbd7 14.Qb7 (14.Nc4 0-0=) 14...0-0 (14...Ne5 15.Be5 0-0=) 15.0-0 (15.Nc6!? Qe8 16.Ne7 Qe7 17.Bf6 gf6 18.Qc7+=) 15...Ne5 (15...Qa8 16.Qa8 Ra8 17.Nc6 Ra1 18.Ne7 Kf8 19.Nc6=+) 16.Be5=+ Nd5 (16...Qd7 17.Qd7 Nd7 18.Bg3=+) 17.Nc3= Nc3 18.Bc3 Re8 (18...Bf6 19.Bf6 gf6 20.Qe4=) 19.Qe4 (19.Qb5 Qc8+-) 19...Qc8 (19...Qd3 20.Qd3 cd3 21.Rb1+=) 20.Qg4 (20.Ra1 Qc7+=) 20...g6 (20...f6 21.f3+=) 21.Qd4+- f6 22.Qe4 Kf7 23.Ra1 Rd8 24.Ra7 Qb8 25.Rb7 Qa8 26.Qf3 (26.f3 f5 27.Qb1 Qa4+=) 26...Rd7?? (better 26...f5 27.h3 Qc8+=) 27.Rd7+- (27.Rd7 Qf3 28.gf3+-) 1–0. GuestQQWL – GuestVTVV, freechess.org, 2019.

10.Qe2 Qa5 11.Bd7 Nbd7 12.Bf6 Nf6 13.0-0 =.

10.Qe2 Bb5 11.Qb5+= Qd7 12.Nc3 Qb5 13.Nb5 Nc6 (13...Bc5 14.Bd4 Nfd7 15.Ke2+=) 14.Bf6 (14.Ke2 Bc5+-) 14...gf6= 15.Ke2 Be7 16.Ra1 0-0 (16...Kd7 17.g3=) 17.Nbd4+= Ne5 (17...Rc8!?+=) 18.Rb1+- Bc5 (18...Nf3 19.Kf3 Bc5 20.Rb7 Bd4 21.ed4+-) 19.Rb7 Bd4 (19...Nf3 20.Nf3 (20.gf3?! Bd4 21.ed4 Rc8+=) 20...Ra8 21.Ne1+-) 20.Nd4+- Rc8 21.f4 Nc4 22.f5 e5 23.Nb5 Rc5 24.c3 Rc6 (24...Kf8 25.g4+-) 25.Rd7 e4? (better 25...Rc5 26.Nc7 Nb6 27.Rd8 Kg7 28.Ne8 Kf8 29.Nf6 Ke7+-) 26.Rd5 Rb6 (26...Kg7 27.Rd7+-) 27.Rc5 Ne5 28.Rd5 Kg7?? (28...Nc4 29.Nc7 Rc6 30.Rd8 Kg7+-) 29.Nd6+- Nd3 (29...Rb8 30.Ne4 Ra8 31.Rd6+-) 30.Ne4 Nc1 (30...Ne5 31.Rd6 Rd6 32.Nd6+-) 31.Kf3 (31.Kd1 Nb3+-) 31...h5 (31...Rb1 32.c4 Na2 33.Ra5+-) 32.c4 1–0. DEFFM – IronHard, freechess.org, 2019.

10.Qe2 Bb5 11.Qb5 Qd7 12.Nc3 Nc6 13.Ne2 (13.Ke2 Bd6+=) 13...Be7= 14.0-0 0-0 15.Rb1 Rb8 (better 15...Ra8!?=) 16.Ne5+/- Ne5 17.Be5 Qb5 18.Rb5 Rc8 19.Rb7 Bf8 20.Bf6 (20.Nc3 Ne8+/-) 20...gf6 21.c3 Ra8 22.f4 (better 22.g4!?+/-) 22...Ra2= 23.Nd4 Rd2 24.f5? (better 24.Rc7!?=) 24...e5-/+ 25.Nb5 Re2 (better 25...Bc5!? 26.Nc7 Be3 27.Kf1 d4 28.cd4 Bd4-/+) 26.Rd7 (26.Nc7 Rd2 27.Rb8 d4 28.cd4 ed4 29.ed4 Rd4=) 26...Bc5 27.Rd5 (27.Kf1 Rd2=) 27...Be3=+ 28.Kf1 Rf2 29.Ke1 Rg2 30.Nd6 (better 30.Rd8!? Kg7 31.Nd6-/+) 30...Rh2-+ 31.Ne4 Bg5 (31...Kg7 32.Rd7 Ra2 33.Rd3-+) 32.Rd7 (32.c4 Rc2 33.c5 Kg7-/+) 32...Kg7 (32...h5!? 33.Rd3-+) 33.Nd6-/+ h5 34.Nf7 Kf8 35.Nd6 h4 36.Rh7 h3 (better 36...Kg8 37.Rh5 Bf4-/+) 37.Rh5?? (37.Ne4!?=+) 37...Kg7 (37...Bf4 38.Ne4 Rh1 39.Kf2-+) 38.Ne4? (better 38.c4-/+) 38...Rc2?? (better 38...Bf4-+) 39.Ng5 (better 39.Rh3!? Rg2 40.Nc5=) 39...fg5-/+ 40.Rh3 Kf6 41.Kd1 Rf2 42.Ke1 (42.Rh8 g4 43.Rf8 Kg7-/+) 42...Rf5 (42...Ra2 43.c4 Rc2 44.Rh8 Kf5 45.Rc8-/+) 43.Ke2 (43.Rh6 Kf7 44.Ke2=+) 43...e4 (43...g4 44.Rh8=+) 44.Rh8? (better 44.Ke3!?=) 44...Ke5-/+ 45.Re8 (45.Rg8 Kf4 46.Kf2 Kg4 47.Ke3 Rf3 48.Ke4 Rc3-+) 45...Kf4 46.Rd8? (better 46.Kf2-/+) 46...Rc5-+ 47.Kd2 (47.Rf8 Kg3 48.Rg8-+) 47...g4 48.Rf8 (48.Ke2 Rc3 49.Rf8 Kg5 50.Re8-+) 48...Rf5 49.Rg8 e3 (better 49...Kf3 50.c4-+) 50.Ke2 Rd5?? (better 50...Rc5 51.Rf8 Kg3-+) 51.Rf8= Kg3 52.Ke3 Re5 53.Kd4 Re7 54.Rg8 Rd7 55.Kc4?? (55.Ke4 Re7 56.Kd4 Ra7=) 55...Rc7?? (55...Kf3 56.Kb5 g3 57.c4=) 56.Kd3 (56.Kd4 Re7=) 56...Rb7 (56...Kf3 57.Kd4 g3=) 57.Kc2?? (57.Ke4!?=) 57...Rd7?? (57...Kf3 58.c4 g3 59.c5-+) 58.Rg5? (58.c4 Kh3 59.Rh8 Kg2-+) 58...Rc7?? (better 58...Kf3!? 59.Rf5 Kg2-+) 59.Rd5 (59.Kd3!?=+) 59...Rd7?? (59...Kg2 60.Rd2 Kh3-+) 60.Rd7+- 1-0. allyouneedisluft (2620) - igo1 (2350), Rated Bullet game, lichess.org, 2016. (=1.a3 d5 2.b4 c6 3.Bb2 Nf6 4.e3 a5 5.Nf3 ab4 6.ab4 Ra1 7.Ba1 e6 8.b5)

10.Qe2 Qb6 11.Bd7 Nbd7 12.0-0 Bd6 13.Nc3 0-0 14.Rb1 Qa5 (14...Qc6 15.Nd4 Qa6 16.Ncb5+=) 15.Qb5 (15.Nb5 Qa2 16.Qd1 Bc5+=) 15...Ra8= 16.Qa5 (16.Qb7?? Rb8 17.Qc6 Rb1 18.Nb1 Qa1-+) 16...Ra5 17.Kf1 Ne5 (17...Be7 18.Ke2=) 18.Ne5+= Be5 19.Ke2 (better 19.f4 Bd6 20.Ke2+=) 19...d4?? (19...g5!?=) 20.ed4 (better 20.f4!? dc3 21.fe5 Re5 22.Rb7+-) 20...Bd4+= 21.Rb7 g6 (21...h5 22.Bb2+=) 22.Rb8 (22.Bb2 Kg7+-) 22...Kg7 23.Bb2 Re5 (23...g5 24.h3+-) 24.Kf1 (better 24.Kd3 Bc3 25.Bc3+- (25.dc3 Rd5 26.Ke2 Re5 27.Kf1 Rc5+-; 25.Kc3?! Re2+=)) 24...Ng4+= 25.Rb4 (25.g3 Rf5 (25...Bf2?? 26.Ne4 Bg3 27.hg3+-; 25...Nf2?? 26.Rb4+-; 25...Nh2 26.Kg2 Rh5 27.Rb4+-) 26.Ne4 Nh2 27.Kg2 Bb2 28.Rb2 Re5+=) 25...Nh2= 26.Kg1 Ng4 27.g3 (27.Kf1 Nh2 28.Kg1 Ng4=) 27...Re1 (27...Bf2? 28.Kg2 Rf5 29.Rg4+-) 28.Kg2 e5 29.Nd5 (29.Nb5 Bb2 30.Rb2 h5=) 29...Bb2=+ 30.Rg4 (30.Rb2!? Re2 31.Kf3 Rd2 32.Kg4 Rd5 33.Kf3=+) 30...Re2-/+ 31.c3 Rd2 32.Rb4 Rd5 (32...h5 33.Rb3-/+) 33.Rb2 Rc5 34.Re2 (34.Rc2 Rc4-/+) 34...Rc3 (34...Kf6!? 35.Rc2 Rc4-/+) 35.Re5=+ Kf6 ½–½. Herrera,Pablo (2070) – Rolon,Maximiliano (1720), 12th IRT CLUB PHILIDOR – SUB, 2016.

10.Qe2 Bd6 11.0-0 0-0 12.Nc3 (12.Rc1 Qe8 13.Bd7 Nbd7=) 12...Bb4 (12...e5 13.Bd7 Qd7 14.Rb1=) 13.Rb1 Bc3 (13...Qa5 14.Qd3=) 14.Bc3+= Ng4 (14...Ne4!?+=) 15.h3 Nh6 (15...Nf6 16.Bd7 Nbd7 17.Rb7+/–) 16.Ne5 (16.Bd7 Qd7 17.Qb5 f6+/–) 16...Nc6 17.f4 (17.Nd7 Qd7 18.Qh5 Nf5+=) 17...Ne5+= 18.Be5 (18.fe5 Qb6+=) 18...Bb5 (18...f6 19.Bc3+=) 19.Qb5 f6 20.Bc3 Qd7?? (better is 20...Rf7+=) 21.Qd7+- (21...Kh8 22.Rb7+-) 1–0. Fredek (2065) – Julios, Freundschaftspartie, 5m + 0s, 2006.

10.Qe2 Bd6 11.Nc3 Nc6=.

10.Qe2 Bd6 11.Bf6 gf6 (11...Qf6!? 12.0-0 0-0=) 12.Bd7+= Qd7 13.0-0 Ke7 14.Nc3 Nc6 15.Rb1 Ne5 16.e4 Nf3 (16...de4!? 17.Ne4 Ra8+-) 17.Qf3+- d4 (better 17...Ra8 18.ed5 Be5+-) 18.e5 fe5 19.Rb7 Bc7 20.Nb5 Rc8 21.c4 (21.Nc7?! Rc7 22.Qa3 Kf6 23.Qf3 Ke7 24.Qa3 Kf6 25.Qf3 Ke7=) 21...Kf8 (21...dc3 22.Qc3 (22.Nc7?! Rc7 23.Rc7 Qc7 24.dc3 Qa7=; worse 22.Rc7 Rc7 23.Nc3 Qd2 24.Qf6 Ke8-+) 22...Kd8 23.Qc5+- (23.Nc7?! Rc7 24.Rb8 Rc8 25.Qe5 Qd2 26.Qf6 Kc7+=; 23.Rc7?! Rc7 24.Qc7 Qc7 25.Nc7 Kc7+=)) 22.Qa3 (22.Nc7?! Rc7 23.Rb8 Ke7 24.Qa3 Kf6+-; 22.Rc7?! Rc7 23.Nc7 Qc7 24.Qa3 Ke8 25.Qa4 Qd7+=) 22...Ke8 23.Qa7 (23.Nc7?! Rc7 24.Rb8 Rc8+-) 23...Qc6 (23...Kd8 24.Qc5 Qe7 25.Qe7 Ke7 26.Rc7 Rc7 27.Nc7 Kd6 28.Ne8 Kc5+-) 24.Nc7 Kf8 25.Nd5! ed5 (25...ed5 26.Rf7) 26.Rf7 Kg8 27.Rg7 Kh8 28.Rh7 Kg8 29.Qf7 1–0. DEFFM – Vitejvpekle, freechess.org, 2019.

10.Be2 Nc6 11.0-0 Bd6 12.Nc3 e5 13.Nb5 Bb8 14.Bb2 Bf5 15.Ba3 Ne7 16.Qa1 (16.d4 e4 17.Ne5 Nc6+=) 16...0-0 (16...Bg4!?=) 17.Ne5+= Bc2 18.f4 Bf5 19.Nd4 Bc8 20.Rb1 Ne4 21.Qb2 Nd6 (21...Bd6 22.Bd6 Qd6 23.Rc1+=) 22.Bb4 Re8 23.Bc5 Nef5 24.Nf5 Bf5 25.Ra1 f6 26.Nf3 Nc4 (better 26...Ne4!? 27.Bd4 Qc7+=) 27.Qb7+- Bg4? (better 27...Qd7 28.Qb4 Nd6+-) 28.Ra8 Nd2 (28...Nd6 29.Qd5 Be6 30.Qd4+-) 29.Ba7 (29.Bb5 Nf3 30.gf3 Qc8 31.Qc8 Rc8 32.fg4 Rc5 33.Rb8 Kf7+-) 29...Ba7 (29...Qd6 30.Nd2 (30.Bb8 Qc5 31.Kh1 Nf3 32.gf3 Qc1 33.Kg2 Qd2+-; worse 30.Rb8 Rb8 31.Qb8 Qb8 32.Bb8 Kf7+-) 30...Be2 31.Bb8+- (worse 31.Rb8 Rb8 32.Bb8 Qc5+-)) 30.Ra7 (30.Ra7 Qd7 31.Qd7 (31.Nd2?! Qb7 32.Rb7 Be2+=) 31...Bd7 32.Nd2+-) 1–0. Waechtler,Frank (2290) – Lytchak,Alexander (2255), NRW–Liga I, 1994.

10.Be2 Be7 11.0-0 0-0 12.c4 dc4 13.Bc4 Qc7 14.Qb3 Nc6 15.Bc3 Ra8 16.d4 Na5 17.Ba5 Ra5 18.Nbd2 Ba4 19.Qb2 b5 20.Bb3 Bb3 21.Qb3 b4 22.h3 (22.Nc4 Ra6=) 22...Ra3=+ 23.Qb2 Nd5 24.Rc1 Qa5 (24...Nc3 25.Kh1 Qb7 26.Nb1=+) 25.Nc4 Qa4?? (better 25...Ra2 26.Na5 Rb2 27.Rc8 Bf8=) 26.Na3+- ba3 (better 26...Qa3 27.Rc8 Bf8+-) 27.Qb8 Bf8 28.Rc8 Do you see the mate threat? 28...Qb4 29.Qb4 Nb4 30.Ra8 (30.Ne5 a2 31.Ra8 h6+-) 30...a2 (30...Nd5 31.Ne5 Nb6 32.Ra6+-) 31.Nd2 (31.Ne5 h6 32.Nd7 a1Q 33.Ra1 Bd6+-) 31...g6 32.Nb3 Kg7 33.Kf1 Bd6 34.Ke2 e5 35.g3 (35.de5!? Be5 36.Kd2 h6+-) 35...ed4 36.ed4 Kf6 37.f4 Ke6 38.Nc5 Kd5 39.Nb3?? (39.Nd3 Nc6+-) 39...Kc4?? (39...Ke6 40.Nc1 Nc2 41.d5 Kd5 42.Na2 Nd4 43.Kd3+-) 40.Nd2?? (40.Nc1 Kd4 41.Na2 Nd5+-) 40...Kc3?? (better 40...Kd4 41.Ra7 f6=+) 41.Ne4+- Kb2 42.Nd6 f6 43.Ra2 (43.Nc4 Kb1+-) 43...Na2 44.Ne8 f5 45.d5?? (better 45.Nf6+-) 45...Nc3+= 46.Kd3 Nd5 47.Kd4 Nf6?? (better 47...Nc3+=) 48.Ke5 (better 48.Nf6 h6 49.Ng8+-) 48...Nh5 (better 48...Ne8 49.Ke6 Kc3-+) 49.g4 (49.Nf6 Ng3 50.Nh7 Ne2+/-) 49...fg4+/- 50.hg4 Ng3 51.Nf6 h5 52.g5 (better 52.Nh5!? gh5 53.f5+/-) 52...h4+= 53.Ne4 Nf5?? (better 53...Kc2 54.Nf2 Kd2=) 54.Nf2 Kc2? (better 54...h3 55.Nh3 Nh4+-) 55.Kf6 Kd2 56.Kg6 Ng3 (56...Nd6 57.f5 Ke2+-) 57.f5 Ke3 58.Nh3 Kf3 59.f6 Ne2 (59...Kg2 60.Nf4 Kf3 61.f7 Kf4 62.f8Q Ke3 63.Kh7+-) 60.Kh5 (better 60.f7 Kg3 61.f8Q Kh2+-) 60...Nf4 (60...Ng3 61.Kh4 Nf5 62.Kh5 Ng3 63.Kh6+-) 61.Kh4 Nh3 62.Kh3 (62.Kh3 Kf4 63.Kh4 Ke5 64.f7 Kf4 65.f8Q Ke3 66.g6 Kd3 67.Qf4 Kc3 68.g7 Kd3 69.g8Q Kc2 70.Qgc4 Kd1 71.Qfc1) 1-0. pudman79 (2150) - RichardSommer (2150), lichess.org, 2020.

10.Bf6 Qf6 11.Bd7 Nd7 12.Nc3 (12.0-0 Bd6=) 12...Bb4=+ 13.Nb5 0-0 14.0-0 Ba5 15.Qa1 e5?? (better 15...Ra8=) 16.Qa5+- 1-0. DEFFM – GuestWQBH, freechess.org, 2021.

9.Bd4 c5 10.Bf6 gf6 11.c4 dc4 12.Bc4 Nd7 13.0-0 Bd6 14.Nc3 Rg8 15.Ne4 (better 15.Qe2+=) 15...Be5?? (better 15...Be7=) 16.Ne5+- fe5 17.Qh5 Ke7 (17...Rg6 18.Qh7 Qc7 19.Qh8 Ke7 20.Ra1+-) 18.Qh7 (18.Qh7 Rg6 19.f4+-) 1–0. DEFFM – GuestWGMK, freechess.org, 2019.

9.Bd4 c5 10.Bf6 gf6 11.c4 d4 12.Bd3 e5 13.0-0 Bg4 14.h3 (14.ed4 cd4 15.h3 Be6=) 14...Bh5 (14...Be6 15.Qc2+=) 15.Be4 Qc7 16.Qa4 Nd7 (better 16...Bg6!? 17.Qc2 Qd6+=) 17.Qa8+- Nb8 18.b6! The mate threat is bxc7 18...Qd6 (18...Qb6 Theme: Deflection from b8 19.Qb8) 19.Qb7 Be7 (19...Bg6 20.Bg6 fg6 21.ed4+-) 20.ed4 ed4 21.Nh4 0-0 (21...Bg6 22.Re1 Kf8+-) 22.Nf5 Qd8 (22...Qe6 23.Ne7 Kh8 24.Bd5+-) 23.Ne7 Kh8 24.Re1 Re8 25.Bc6 Nc6 (25...Rf8+-) 26.Qc6 (26.Nc6 Re1 27.Kh2 Qd6 28.Ne5 Qe5 29.g3 Qe2 30.Qb8 Kg7 31.Qf4 Qf1 32.Qf6 Kf6 33.b7 Qf2) 26...Re7 27.Qf6 Kg8 Threatening mate... how? 28.Re7 Bg6 29.Qe5 Kf8 30.b7 (30.b7 Bf5 31.Qf6 Be6 32.Rf7 Bf7 33.Qd8 Kg7 34.b8Q Be8 35.Qe5 Kf7 36.Qde8) 1-0. DEFFM – moondher, freechess.org, 2020.

9.c4 dc4 10.Bc4 b6 11.0-0 Be7 12.Qc2 0-0 (12...Bb7 13.Rd1=) 13.d4+= Nd5 (13...Bb7 14.Nbd2+=) 14.dc5 (14.Rd1 Bb7+=) 14...Bc5 15.Nbd2 (15.Nc3 Bb7+=) 15...Nb4 (15...Bb7 16.Ne4 Be7 17.Bd4+=) 16.Qb2+- f6 17.Ne4 Be7 (17...Qe7!?+-) 18.Qb3 Nd5 19.Nc3 (19.Rd1 Qe8+-) 19...Bb7 (19...Nc7 20.Na4 Bb7 21.Nd4+-) 20.Nd4+- Qc8 (20...Nc7 21.Rd1 Qe8 22.Ne6 Ne6 23.Be6 Kh8 24.Na4+-) 21.Ne6! (worse 21.Nd5 ed5 22.Bd5 Bd5 23.Qd5 Kh8+-) 21...Qe6 22.Nd5 Kh8 23.Nf6 Qf6?? (23...Qf5 24.Bd3 Qg5+-) 24.Bf6 Bf6 (24...gf6 25.Bd5 Bc8 26.Be6+-) 25.Qa3 (25.Qa3 Rd8 26.Qa7+-) 1–0. DEFFM – GuestYGLL, freechess.org, 2018.

9.c4 dc4 10.Bc4 Bd6 11.Qb3 b6 12.0-0 (12.Na3 Nbd7+=) 12...Bb7 13.d4 Bf3 14.gf3 0-0 (14...Nbd7 15.Nd2=) 15.dc5 Bc5 (worse 15...bc5 16.Rd1 Qe7 17.Bf6 gf6 18.f4+-) 16.Rd1 Nbd7 17.Bf6 gf6 18.Qd3 (18.Qd3 Qa8 19.Qd7 Qf3 20.Be6 fe6 21.Qe6 Kh8 22.Rd3=) 1–0. DEFFM – GuestPCHR, freechess.org, 2018.

9.c4 dc4 10.Bc4 Be7 11.0-0 Bd7 12.Ne5 Bb5?? (better 12...0-0+=) 13.Bb5+- (13.Bb5 Kf8 14.d4+-) 1–0. GuestKRVB – GuestKYLE, freechess.org, 2017.

9.Nc3 0-0 10.Be2 Nbd7 11.0-0 e5 12.Qb1 Qc7 13.h3 e4 14.Nd4 Ne5 15.f4 ef3 16.Nf3 Nf3 17.Bf3 Be5 18.b6 Qe7 19.Re1 Re8 20.Re2 Ne4 21.d4 (21.Ne4 de4 Combination; 21.Be4 de4 Combination) 21...Bd6 22.Be4 de4 23.Qf1 (23.Qa2!?-/+) 23...Qg5-+ 24.Kh1 Qg3 25.Qg1 Bh3! 26.gh3 (26.gh3 Qh3 Decoy) 26...Qh3 27.Rh2 Qf3 (27...Bh2 28.Qh2 Qf3 29.Kg1 Qe3 30.Qf2 Qc1 31.Qf1 Qc2 32.Qe1-+) 28.Rg2 (better is 28.Qg2 Bh2 29.Qf3 ef3 30.Kh2 Re3 31.Kg3-/+) 28...Re6?? (better is 28...Qh5 29.Rh2 Bh2 (29...Qh2 30.Qh2 Bh2 31.Kh2-+) 30.Qh2 Qf3 31.Kg1 Qe3 32.Qf2 Qc1 33.Qf1 Qc2-+) 29.Qf2+= Qh5 30.Kg1 Rh6 31.Rh2?? (better is 31.Kf1 Qa5 32.Bb2+=) 31...Bh2-+ 32.Kf1 Rf6 33.Qf6 gf6 34.Ne4 Qf3 35.Nf2 Bg3 0–1. Karacsony,Istvan – Mihalecz,Attila (2120), HUN–chT2 Asztalos, 2003.

9.c4 Bd7 10.Ne5 Be5 11.Be5 c5? (better 11...dc4 12.b6 0-0+=) 12.Bd3 0-0 13.0-0 b6 (13...dc4 14.Bc4 Be8 15.Nc3+-) 14.Qf3 Ne4 (14...Be8 15.Nc3+-) 15.Be4 de4 16.Qg3 f6 17.Bc7 Qc8 18.Qd6 f5 (18...Be8 19.Bb8 Rf7 20.Qb6 Rb7+-) 19.Nc3 Rd8 (19...Rf7 20.Bb8 Be8+-) 20.Bd8 (20.Bd8 Qd8 21.Ra1+-) 1–0. DEFFM – GuestZPSC, freechess.org, 2019.

9.c4 Qe7 10.Nc3 e5 (10...0-0 11.d4 b6 12.Qb3=) 11.cd5 (11.bc6!? bc6 12.cd5 cd5 13.Nb5=) 11...cd5=+ 12.Be2 h6 13.0-0 Be6 (13...0-0 14.h3=+) 14.d4 (14.b6 e4 15.Nd4 0-0=) 14...e4=+ 15.Ne5 Nbd7 (15...0-0 16.b6=+) 16.Na4 (better 16.b6=) 16...Be5?? (better 16...0-0=+) 17.de5+- Nh7 18.Qd4 0-0 19.Qa7 Rb8 1–0. GuestVVGT – GuestKGCF, freechess.org, 2020.

9.bc6 bc6 10.Be5 0-0 11.Nc3 Ng4 12.Bd6 Qd6 13.h3 Ne5 14.Ne5 Qe5 15.d4 Qg5 16.h4 Qg6 17.g3 f5 18.Qf3 Na6 19.Qf4 Nb4 20.Kd2 Qg4 21.Qd6 Qf3 22.Rh2 f4 23.gf4 c5 24.Be2 cd4 25.Bf3 dc3 26.Kc3 Na6 27.Be2 d4 28.ed4 Nb8 29.Qb8 Ba6 30.Qd6 Be2 31.Qe6 Kh8 32.Qe2 h5 33.Qh5 Kg8 34.Rg2 Rf4 35.Rg7 Kg7 36.Qg5 Kh7 37.Qf4 Kh8 38.Qg5 Kh7 39.f4 Kh8 40.f5 Kh7 41.f6 Kh8 42.Qg7# 1–0. marus1 – ChesReactor, internet, 2001.

9.Bd3 Bd7 10.0-0 c5 (10...0-0 11.Be5 Be5 12.Ne5 cb5 13.f4=) 11.c4 h6 (11...0-0 12.Qc2=) 12.Na3 (12.Be5 Qe7+=) 12...0-0 13.Qb3 b6 (13...dc4 14.Nc4 Be7 15.Bc2+=) 14.Bf6+= Qf6 15.cd5 e5 (15...Rd8 16.Be4+=) 16.Nc4+- Bc7 (16...Bg4 17.Be4+= (17.Nb6?! Bf3 18.gf3 Qg5 19.Kh1 Qh5=)) 17.d6! Bd6 18.Nb6 Be6 (18...Bg4 19.Qd5 Rd8 20.Nc4+-) 19.Nd5 Qd8 20.e4 White intends b6 20...Kh8 (20...Nd7 21.Bc4+-) 21.b6 (21.Bc4 f5 22.d3 fe4 23.de4 Bd5 24.Bd5 Nd7+-) 21...Nc6 (21...Nd7+-) 22.b7 (22.Bc4 f5 23.d3 fe4 24.de4 Na5+-) 22...Na5 (22...Bd5 23.Qd5 Nb4 24.Qb3+=) 23.Qb2 Qb8 (23...Bd5 24.ed5 Qc7 25.Re1+=) 24.Rb1+- Bd7? (better 24...Bd5 25.ed5 f5+-) 25.Qb6+- Nc6 (25...c4 26.Bf1 (worse 26.Qa5 cd3 27.Qc3 Rd8+-) 26...Nb3 27.Bc4+-) 26.Bb5 (26.Bb5 Qe8 27.Ra1+-) 1–0. DEFFM – amplitude, freechess.org, 2018.

9.Bd3 Nbd7 10.0-0=+.

9.Be2 Qa5 10.Bc3 Bb4 11.bc6 bc6 12.0-0 Bc3 13.Nc3 Ba6 14.Ba6 Na6 (14...Qa6!? 15.e4 de4=) 15.Qa1+= Qb6 (better is 15...Qa1!? 16.Ra1 Nb8+=) 16.Rb1+- Qa7 17.Nd4 0-0 18.Nc6 Qa8 19.Ne7 Kh8 20.Qa3 Nc7 21.Qa8 Ra8 22.Nc6 Nfe8 23.g3 h6 24.Rb8 Rb8 25.Nb8 g6 26.Kf1 Nd6 27.Ke2 Kg7 28.d3 g5 29.Nc6 f5 30.Nd4 Kf6 31.f4 Kg6 32.Nf3 Nf7 33.Kd2 Kf6 34.Ne2 g4 35.Nfd4 Nd6 36.Nb3 Ncb5 37.Ned4 Nd4 38.Nd4 h5 39.Kc3 Ke7 40.Kb4 Kd7 41.Nb5 Nf7 42.c4 dc4 43.Kc4 e5 (43...Nd8!?+/–) 44.Kd5+- ef4 45.ef4 (45.gf4?! h4 46.Nd4 g3 47.hg3 hg3+/–) 45...Ke7 46.Nd4 Kf6 47.Nc6 Nh8 (47...Nh6+-) 48.Ne5 Ke7 49.d4 Kf6 (49...h4 50.gh4 Kf6 51.h5+-) 50.Kd6 (50.Kd6 h4 51.gh4+-) 1–0. vhilts (2375) – tomy (2420), net–chess.com, 2016.

9.Be2 Bd7 10.0-0 0-0 11.Ne5 Qa5 12.Bc3 Qc7 13.f4 Ne4 14.Bb2 f6 15.Nd7 Nd7 16.c4 e5 17.d3 Nec5 18.cd5 cd5 19.d4 Ne4?? (better 19...ed4 20.Qd4 Nb6+=) 20.de5+- fe5 (20...Qc5 21.Bd4 (21.ed6?! Qe3 22.Kh1 Nf2 23.Rf2 Qf2+-) 21...Qb4 22.ed6 Qd6 23.Nc3+-) 21.Qd5 (21.Qd5 Kh8 22.Qe4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Be2 Nbd7 10.c4 0-0 11.0-0 cb5 12.cb5 e5 13.Nc3 e4 (13...Qc7 14.h3+=) 14.Nd4= Nb6 15.Na4 Bd7 16.Nb6 Qb6 17.Qb3 Ra8 18.Bc3 Ra3 19.Qb2 Qa7 20.b6 Qa4 21.h3 Be5 (21...Bc5 22.Rc1+=) 22.Bb5= Bb5 23.Nb5 Rb3 24.Qa1 Qb5 25.Be5 Ne8 26.Rc1 Qb6 27.Bd4 (27.Bg7 Qa6=) 27...Qb5 (27...Qd8 28.Qa2 Rb5 29.d3+=) 28.Qa2 (28.Bg7 Qa6=) 28...Rb4 (28...f6!?+=) 29.Rc5= Qd7 30.Rd5 Qc8 (30...Rb1 31.Kh2 Qc7 32.Be5 Qc6+-) 31.Re5 Nf6 32.Rc5 (32.Rc5 Qb8 33.Qc2+-) 1–0. pcmvr – cadam (2790), net–chess.com, 2016.

9.Be5 0-0 10.d4 Be5 11.de5 Ne4 =.

9.Be5 0-0 10.Be2 Be5 11.Ne5 Nbd7 12.Nf3 e5 13.0-0 (13.d4 e4 14.Nfd2 Qb6=) 13...e4 14.Nd4 Ne5 (14...c5 15.Nb3=) 15.f4 Nc4 (15...ef3!? 16.Nf3 Nf3 17.Bf3 Re8=) 16.bc6+= bc6 17.Nc6 Qc7 18.Nd4 Ba6 19.Qe1 Qd7 (19...Rb8 20.Nc3+=) 20.Qf2 Qc8 (20...Rb8 21.Nc3+=) 21.Qg3+/– Nd6 22.Nc3 Be2 (23.Nce2 Nc4+=). pcmvr (2225) – petrus (2260), net–chess.com, 2006.

9.Be5 Be5 10.Ne5 Nbd7 11.Nd7 Nd7 12.Qg4 0-0 13.c4 e5 14.cd5 cd5 15.Nc3 Nb6 16.Qb4 d4 17.Ne4 de3 18.de3 Nd5 19.Qd2 Bf5 20.Ng3 Be6 21.Be2 Qb6 22.0-0 Rc8 23.Rc1 Rc1 24.Qc1 Qc7 25.Qc7 Nc7 26.Ne4 b6 27.Kf1 Kf8 28.Ke1 Ke7 29.Kd2 (29.Nc3 f5=) 29...f5 (29...Bd5!? 30.Ng5 Bg2 31.Nh7 f6-/+) 30.Nc3= Nd5 31.Na4 Kd6 32.Bc4 Kc7 33.Nb2 Kd6 34.f3 Kc5 35.e4 fe4 36.fe4 Nc7 Attacks the isolani on b5 37.Be6 (better is 37.Kc3!? Bc4 38.Nc4 Nb5 39.Kd3=) 37...Ne6-/+ 38.Nd3 (better is 38.Ke3!?-/+) 38...Kd4-+ (38...Kb5?! 39.Ne5 Kb4 40.g4=) 39.Nb2 Nc5 40.Kc2 Ke4 (40...g5 41.g4-+) 41.Nc4 Nd7 42.Kc3 Kd5 43.Kb4 Kd4 44.Nd6 e4 45.Nf5 Kd3 0–1. Plantet,Marc (1910) – Baron,Daniel (2185), Montigny le Bretonneux op 1st, 2002.

9.Ne5 0-0=+ 10.Be2 (10.Bd3 cb5 11.f4 b4-/+) 10...cb5-/+ 11.0-0 (11.Bb5?? Qa5 12.Nf7 Rf7-+) 11...Nbd7 (11...Qa5 12.Bb2-/+) 12.f4 Qc7 (12...b4 13.Nd3-/+) 13.Nf3 (13.Nc3 A) worse 13...Ne5 14.Nb5 Qb8 15.Nd6+/- (worse 15.Be5 Be5 16.fe5 Qe5=+); B) 13...Be5 14.Nb5 Qb8 15.fe5 Ne5=) 13...Nc5 (13...b4 14.Bd3-/+) 14.Be5 (better 14.Na3!? Bd7 15.Bf6 gf6 16.Nb5 Bb5 17.Bb5=) 14...Bd7=+ 15.d3 (15.Bf6!? gf6 16.Nc3-/+) 15...Ra8 16.h3 (16.Bf6 gf6 17.Qe1 Bf8-/+) 16...Ra2 (16...Na4 17.Qd2-/+) 17.Nbd2 (17.Nc3 Ra3-/+) 17...Be5 (17...Na4 18.Qb1 Ra3 19.Kf2-/+) 18.Ne5 (18.fe5 Ne8 19.Qb1 Qa5=+) 18...Qa5 (18...Na4 19.Nb3-+) 19.f5? (19.Ndf3 Be8-/+) 19...b4 (better 19...ef5 20.Ndf3 Ne6 21.Nd7 Nd7-+) 20.Nd7-/+ Nfd7 21.fe6 fe6 (21...Ne6!? 22.d4 Nf6-/+) 22.Bg4 (22.d4 Na4 23.Bg4 Qb6+/-) 22...Qa6 (22...Qb6=+) 23.Nf3 (23.d4 Na4 24.Qf3+/-) 23...Nf6-/+ 24.Ne5 (better 24.Nd4 Qb6 25.Qb1-/+) 24...Ng4?? (better 24...Qa3-+) 25.Qg4= Ra1 (25...Rc2 26.Qf4 Rg2 27.Kg2 Qa2 28.Kh1 Qg2 29.Kg2 h5 30.Qf8 Kh7 31.Rf7 Nd3 32.Qg7) 26.Qf3 Rf1 27.Qf1 h6 28.Qf7 Kh7 29.Ng4 Kh8?? (better 29...Qa1 30.Kh2 Qb2=) 30.Qf8+- (30.Qf8 Kh7 31.Qc5 Qa1 32.Kf2+-) 1-0. UncleBulgaria (2425) - JamestownSlat (2090), ChessWorld.net, 2015.

9.g4 Ng4 (9...0-0!?=+) 10.Rg1= Nh2 (10...e5!? 11.h3 e4 12.hg4 ef3 13.Qf3 0-0=) 11.Nh2+/- Bh2 12.Rg7 (12.Rg2 Bd6 13.Bg7 Ke7+/-) 12...Rf8 (12...Bd6 13.Qh5 Qe7 14.Rh7 Rh7 15.Qh7=) 13.Rh7 (13.Rg2 Bd6 14.Bg7 Nd7+=) 13...Bd6= 14.c4 (14.f4 Nd7=) 14...dc4 15.Nc3 Nd7 (15...e5 16.Bc4 Bf5 17.Rh1=) 16.bc6+= bc6 17.Ne4 Be5 (17...Nc5 18.Nf6 Ke7 19.Ng4+=) 18.f4 Ba1 19.Qa1 Nb6 (19...Qb6 20.Bc4 Ke7 21.Qa2+=) 20.Be2 (20.Qa5 Kd7+/-) 20...Nd5 21.Bc4 Qc7 22.Qa3 Qe7 23.Qa8 Qc7 24.Qa3 (24.f5 ef5 25.Bd5 fe4 26.Qc6 Qc6 27.Bc6 Ke7 28.Be4 Be6+/-) 24...Qe7 25.Qb2 Qc7 (25...Kd8 26.Qb3+/-) 26.Qg7 (better 26.Qe5 Qe7 27.Nd6 Kd7 28.Nc8 Kc8 29.f5+/-) 26...Qb8? (26...Qe7 27.Ke2+/-) 27.Kf2 (better 27.Bd5!? cd5 28.Nf6 Ke7 29.Ng8 Ke8 30.Rh8+-) 27...Qb4+/- 28.Qe5 (28.Qd4 Kd8+/-) 28...Ke7 29.f5 Qc4?? (better 29...Kd8 30.f6 Bd7+/-) 30.f6+- Kd7 (30...Kd8 31.Qd6 Bd7 32.Qf8 Be8+-) 31.Qd6 Ke8 32.Qf8!! (32.Qf8 Kd7 33.Qf7 Kd8 34.Qf8) 1-0. Matjushin,G (2415) - Simonyan,Grigori (2075), Vladimir Dvorkovich Rapid, 2018.

10.Qc2 Bd7 11.c5+= Be7 12.b6 Ne8 (12...Ne4 13.d4+=) 13.d4+/- f6 14.Bd3 g6 15.0-0 Kg7 16.Nbd2 f5 17.Bb2 Nf6 18.Ra1 Bc8 19.Ra8 Nbd7? (better 19...Nfd7+-) 20.Ng5 Ne4 (20...Nb6 21.Ne6! Be6 22.Rd8 Bd8 23.cb6 Bb6+-) 21.Ne6 (21.Nge4?! fe4 22.Be2 Bg5+=; 21.Be4?! Bg5 22.Bd3 Bf6+/-) 21...Kf7 22.Nd8 (22.Nd8 Rd8 23.Nb3+-) 1-0. DEFFM – GuestZNFL, freechess.org, 2021.

10.Qc2 Nbd7=+.

10.bc6 bc6 11.cd5 cd5 12.Be2 Nc6 13.0-0 Bd7 14.Nc3 Qe7 15.Nb5 Bb4 16.Nbd4 Nd4 17.Bd4 Bd6 (17...Ne4!?=+) 18.Qa1+= Re8 19.Ne5 Be5 20.Be5 Rc8 (20...Ne4 21.d3 (worse 21.Bg7 e5-/+) 21...Nd6 22.Bh5+= (worse 22.Bg7 e5-/+)) 21.Bf6 (21.Rb1!?+/-) 21...Qf6= 22.Qf6 gf6 23.d4 Kg7 24.h3 Rc2 25.Bf3 Bb5 26.Rb1 Bd3 27.Rd1 Bc4 28.g3 Rb2 29.Kg2 f5 30.Kg1 Kf6 ½-½. Svensek,M (2010) - Kos,T (2300), 28th TCh-SLO (1), 2018.

10.cd5 cd5 11.Be2 Qa5 12.Bf6= gf6 13.Nc3 Kh8 (13...Nd7 14.0-0=) 14.0-0 Rg8 15.Nd4 b6 (15...Nd7 16.Bh5 Rg7 17.Qa4=) 16.Bd3 (16.Bh5 Rf8+-) 16...f5+= 17.Qh5 Be5? (better 17...Rg6!?+=) 18.Qf7+- Bd4?? (better 18...Rg7 19.Qe8 Rg8+-) 19.ed4 Qb4 20.Qf6 Rg7 21.Qd8 (21.Re1 Qd6+-) 21...Rg8 22.Qf6 (22.Qb6!? Nd7 23.Qe6 Qd4 24.Qd5 Qd5 25.Nd5 Bb7+-) 22...Rg7 23.Qe5 (23.Re1 Qd6+-) 23...Nd7 24.Qe6 Qd4 25.Bf5 Rg8 26.Qd5 Qg7 (26...Qd5 27.Nd5 Bb7 28.Bd7 Bd5 29.g3+-) 27.Bd7 Bd7 (27...Qd7 28.Qe5 Qg7 29.f4+-) 28.Re1 Bh3 (28...Rf8 29.g3+-) 29.g3 Rf8 (29...Qf6 30.Qe4 Rf8 31.f4+-) 30.d4 (30.Re5 Bd7+-) 30...h6 (30...Qf6 31.f4+-) 31.Qe5 (31.Ne4 Re8+-) 31...Kg8 (31...Qe5 32.Re5 Kg7 33.Re7 Kg8 34.Rc7+-) 32.Nd5 Qf7 (32...Qg5 33.Qg5 hg5 34.Re5+- (34.Nb6?! Rb8 35.Re5 Rb6 36.Rg5 Kf7+-)) 33.f4 h5 (33...Bg4 34.Qd6 Bh3 35.Kf2+-) 34.Nb6 h4 (34...Bg4 35.Nd5 Bf3 36.Ne7 Kh7 37.Re3+-) 35.Nd5 hg3 (35...Qg7 36.Ne7 Kh7 37.Qe4 Kh6 38.Rc1+-) 36.hg3 Qg6 (36...Qg7 37.Ne7 Kh7 38.Qe4 Kh6+-) 37.Ne7 (37.Ne7 Kf7 38.Ng6 Rc8 39.Ne7 Be6 40.Qe6 Kg7 41.Nf5 Kf8 42.Qe7 Kg8 43.Qg7) 1–0. DEFFM – troubadour, freechess.org, 2018.

10.Be2 dc4 11.Bc4 cb5 12.Bb5 Bd7 13.Bd7 (13.Qa4 Bc6=+) 13...Nbd7 14.0-0 b5 15.d4 (15.Qb3 b4=+) 15...Qa5 (15...Qa8 16.Nc3 Rb8 17.Qb3-/+) 16.Nbd2 Rc8 17.Qb1 b4 18.Bb2 (18.e4 Bf4=+) 18...Qa6 (18...Qd8 19.Rc1=+) 19.Rc1 Nb6 (19...Rc1 20.Qc1 Qe2 21.Qc6 Qd1 22.Nf1=) 20.Rc8= Qc8 21.Qc1 (21.e4!? Nfd7 22.Bc1=) 21...Qc1=+ 22.Bc1 Nfd5 (22...Nbd5 23.e4 Nc3 24.e5-/+) 23.Kf1 (23.Ne4 Be7=+) 23...Nc3 24.Bb2 (24.e4 Kf8=+) 24...f6 (24...Nd1 25.Bc1=+) 25.Bc3 (25.Ke1 Nca4 26.Bc1 Kf7=+) 25...bc3 26.Nb3 Nc4 (26...g5 27.g4=+) 27.Ke2=+ Nb2 28.Nc1 (28.e4 Kf7=+) 28...Bc7 (28...Bb4 29.e4=+) 29.Na2 Ba5 30.Ne1 Kf7 31.Nc2 Nc4 (31...g6!?=+) 32.Na1+= Nd2 33.Kd3 f5 (33...e5 34.f3+= (< 34.Nc3 Bc3 35.Kc3 Ne4 36.Kc4 Nf2=)) 34.f3 (< 34.Nc3 Bc3 35.Kc3 Ne4 36.Kd3 Nf2 37.Ke2 Ne4=) 34...Kg6 (34...Nf1 35.Nb3 (< 35.Nc3 Bc3 36.Kc3 Ne3=+) 35...Bc7 36.h3+/– (< 36.Nc3 Bh2 37.Nc5 Bg1+=)) 35.Nc3 (35.h3 c2+/–) 35...Nf1 (35...Bc3 36.Kc3 Nf1 37.Kd3+=) 36.Nb5+/– Nd2 (36...Nh2!? 37.Nb3 Bb4+/–) 37.Na7 Nf1 38.Ke2 (38.Nb3 Bb4+-) 38...Nd2 (38...Nh2!? 39.Nc6 Bc7+/–) 39.Nc6+- Nc4 (39...Bc3 40.Nc2+-) 40.Na5 (40.Nb3 Bc7+-) 40...Na5+/– 41.Nc2 Nc4 (41...Kf6 42.e4+/–) 42.e4+- Nb6 (42...f4 43.g3 Kg5 44.h4 Kh5 45.gf4 Kh4 46.Ne3+-) 43.Kd3 Kf6 (43...f4 44.g3+-) 44.Ne3 fe4 (44...g5 45.Nc4 Nd7 46.e5 Ke7 47.g4+-) 45.fe4 Nc8 (45...Nd7 46.e5 Ke7 47.Nc4+-) 46.e5 (46.Ng4 Kg5 47.Ne5 Nd6+-) 46...Kf7 47.Kc4 Ke7 (47...h5 48.Kc5+-) 48.Kc5 Kd7 49.Nc4 Ne7 50.Nb6 Kc7 (50...Ke8 51.d5+-) 51.d5 Kd8 52.Kd6 (52.de6 h5+-) 52...ed5 53.Nd5 Nf5 (53...Nc8 54.Ke6 Ke8 55.Nc7 Kd8 56.Nb5+-) 54.Ke6 Nh6 55.Ne3 Ke8 (55...g6 56.Kf6 Ng8 57.Kf7+-) 56.Nf5 Ng4 (56...Nf5 57.Kf5 Ke7 58.g4+-) 57.h3 (57…Nf2 58.Ng7 Kf8 59.Nf5+-) 1–0. Mehlhorn,U – Floegel,O, BFM–199, 2001.

10.0-0 cb5 11.Bb5 Qa5 12.Bf6 Qb5 13.Nc3 (13.Nd4 Qc5 14.Qg4 g6=) 13...Qa6 (13...Qb4 14.Be5=) 14.Be5 Be5 15.Ne5 f6 16.Nd3 Nc6 17.Qb1 (17.Re1 Qc4=) 17...b6 (17...Na5 18.Nc5 Qd6 19.Nb3=) 18.Qb2 Bd7 (18...Na5 19.Nb4 Qb7 20.d3=) 19.Ra1 Qb7 (19...Na5 20.f3+=) 20.Nc5!+- Qc7 (20...bc5 21.Qb5 Double attack (21.Qb7 Pinning; 21.Qb7 Deflection; 21.Qb5 Decoy)) 21.Nd7 Qd7 22.Qb6 Rb8 Black prepares the advance d4 23.Qc5 h5 (23...Rb2 24.Na4 Rb4 25.c3+=) 24.f4 d4 25.ed4 Qd4 26.Qd4 Nd4 27.Ra2 Kf7 28.Kf2 Kg6 29.Ne4 Rd8 (29...Rb1 30.c3 Nb3 31.d4+-) 30.c3+- Nf5 (30...Nb5 31.Ke3+-) 31.Ra6 Kf7 32.g3 Rd7 (32...Rb8 33.Nc5+-) 33.Ke2 (33.Kf3 Rd3 34.Ke2 Rd5+-) 33...g6 (33...Rd5 34.d4+-) 34.Rb6 (34.d4 Ng7+-) 34...Ke7 (34...Ra7 35.h3+-) 35.Nc5 Rd6 (35...Rc7 36.Ne6 Rc8 37.Kd3+-) 36.Rb7 Ke8 (36...Kd8 37.Ne4 Ra6 38.Nf6+-) 37.Ne4 1–0. onur604 (2320) – comfortable (2290), lichess.org, 2020.

10.0-0 cb5 11.Bb5 Bd7 12.Nc3 Nc6 13.Ne2 Re8 (13...Qe7 14.c4+=) 14.Bc6= bc6 15.Be5 Ne4 16.d3 f6 17.Ba1 (17.Bd6!? Nd6 18.Qa1+=) 17...Nc5-/+ 18.Ng3 e5 19.Qd2 Qc7 20.Rd1 Bg4 21.h3 (21.d4 ed4 22.Bd4 Ne4-/+) 21...Bf3 22.gf3 Qd7 23.Kh2 Ne6 24.Rg1?? (better is 24.h4-/+) 24…Ng5-+ (24...Ng5 25.Nf5 Nf3 26.Kg2 Nd2 27.Nd6 Rb8-+) 0–1. guillaume54 (1785) – omnipotent00 (2015), gameknot.com, 2014.

10.0-0 cb5 11.Bb5 Bd7 12.Be2 Nc6 13.c4 dc4 14.Bc4 Qe7 15.Nc3 Rc8 16.Nb5 (16.d4 Nb4 17.Qb3 Bc6=) 16...Bb4 (16...Bb8 17.Qb1=) 17.Qb1 Na5 (17...e5 18.d3=) 18.Be2 (18.Bd3 h6=) 18...Nd5 19.Nbd4 f6 20.Bd3 h6 21.Qa2 Qc5 22.Rb1 Nc4 Attacking the backward pawn on d2 23.Bf1 (23.Nc2 A) worse 23...Bd2 24.Rb7 (worse 24.Nd2 Nd2 25.Rd1 Nc4=+) 24...Nce3 25.fe3 (25.Ne3?! Be3 26.Rd7 Qc6 27.fe3 Qd7+=) 25...Be3 26.Kh1+/-; B) 23...Nd2 24.Nd2 Bd2 25.Rb7 Bc6=) 23...Nd6 24.Bb2 b5 25.Rc1 Qb6 26.Rc8 Bc8 27.Ba1 Kf7 28.Qb1 Qa6 29.Bb2 Nc4 (29...e5 30.e4 ed4 31.ed5=) 30.e4 Ne7 31.Nc2 (31.e5 Nd5 32.ef6 gf6+/-) 31...Ba5 (31...Bd6 32.Bc3+=) 32.Bc1 (32.Na3 Bb6 33.Nc4 bc4+/-) 32...Bb6 33.d3 Ne5 34.Nfd4 (34.Ne5 fe5 35.Bd2 Kg8+=) 34...Bd7 35.Be2 f5 36.Bf4 (36.Be3 Kg8+=) 36...Ng4 (36...N5g6 37.Bh5=) 37.h3 Nf6 38.ef5 ef5 39.Be5 Ned5 40.Bf3 Qa4 41.Qb2 g5 42.g3 Kg6 43.Ne2 Bc7 44.Bd4 Bd8 45.Bc5 Be7 (45...g4 46.Bd5 Nd5 47.Qe5 Qc2 48.Qd5 Qd1 49.Kh2 Qe2 50.Qg8 (50.Qd7?! Bf6+/-) 50...Kf6 51.Qd8 Kg6 52.Qd7+-) 46.Nc3+/- Nc3 (46...Qa6 47.Be7 (47.Bd5?! Bc5 48.d4 Nd5 49.Nd5 Bd6=) 47...Ne7 48.d4+=) 47.Be7 (47.Qc3?! Bc5 48.Qc5 g4 49.hg4 fg4=) 47...Ncd5 48.Bd6 Bc6 49.Nd4 Bd7 50.Nb3 Bc6 51.Be5 b4 52.Nd2 g4 53.hg4 Ng4 (53...fg4 54.Bg2+=) 54.Bd6+/- h5 55.Bf8 Qa7 56.Nb3 Ba8 57.Bc5 Qb8 58.Qa1 h4 59.Qa6 (59.gh4 Qh2 60.Kf1 Nde3 61.Be3 Bf3 62.h5 Kf7-+ (62...Kh5?? 63.Qh8 Kg6 64.Qg8 Kf6 65.Bg5 Ke5 66.d4 Kd6 67.Bf4 Qf4 68.Qb8 Ke7 69.Qf4+-)) 59...Ngf6 60.Bd4 Bb7 61.Qe6 Bc8 62.Bh5 (62.Qe2 Qd6 (62...hg3? 63.Bd5 gf2 64.Kf1+-) 63.Be5 Qe7 64.gh4 Ba6 65.h5 Kh7+/-) 62...Kh5 63.Qf7 Kh6 (63...Kg5!?+=) 64.Bf6+/- Nf6 65.Qf6 Kh7 66.Qh4 Kg6 67.Qc4 Kg7 68.Nc5 Qb6 69.Qd5 Qf6 (better 69...Kf6!?+/-) 70.Qa8+- Qf8 71.Qa5 f4 72.Qb4 fg3 73.fg3 Bh3 74.Qd4 Kg8 75.Qd5 Kg7 76.Ne6 Be6 77.Qe6 Qc5 78.Kf1 Qc1 79.Kf2 Qc2 80.Qe2 Qc3 81.Qe4 Qc2 82.Kf3 Qd1 83.Kf4 Qf1 84.Qf3 Qc1 85.Qe3 Qa3 86.Qe5 Kg6 87.Qf5 Kh6 88.d4 Qc1 89.Kg4 Qd1 90.Qf3 Qa4 91.Qf6 Kh7 92.Kg5 (92.Kg5 Qa3 93.Qf7 Kh8 94.g4 Qc1 95.Qf4+-) 1-0. Mely (2850) - Kadzo (2775), ChessWorld.net, 2011.

10.0-0 Nbd7 11.Nc3 e5=.

10.0-0 Nbd7 11.c4 Nb6 (11...dc4 12.Bc4 Nb6 13.d3=) 12.d3= cb5 13.cb5 Bd7 14.Qb3 Qe7 15.Bd4 Bc5 16.Bc5 Qc5 17.d4 Qc7 18.Ne5 Rc8 19.Bd3 Be8 (19...Ne4+=) 20.g4 (20.Nd2 Nfd7 21.Nd7 Bd7+=) 20...Nfd7 (20...Nbd7 21.Nd7 Bd7 22.b6-/+) 21.f4 Ne5 22.fe5 Nc4 23.Rc1 Qa5 24.Qc2 (24.Na3 Qd2 25.Qb1 Qe3 26.Kg2 Qd4-+) 24...g6 (24...h6 25.g5 hg5 26.Qg2-/+) 25.Qf2 Bb5 26.h4 (26.e4 Qd8 27.Bc4 Qg5-/+) 26...Qd8 27.Nc3 Be8 (better is 27...Nd6 28.Bb1 Qa5-/+) 28.Rb1? (better is 28.e4=+) 28...Ne5!-+ 29.de5 Rc3 30.Qd2 Rc8 (30...Qc7 31.h5-+) 31.g5 Qc7 32.h5 Qe5 33.hg6 Qg5 34.Kf2 fg6 35.Rb7 Bc6 36.Rb4 Rf8 37.Ke2 Qh5 38.Ke1 Qh1 39.Ke2 Qf1# 0–1. Farleigh,Richard – Guevara,Martin (2335), Moscow ol (Men), 1994.

10.0-0 Nbd7 11.d4 Re8 12.c4 e5 (12...c5 13.Nbd2=) 13.cd5 cd5 (13...Nd5 14.de5 Ne5 15.Be5 Be5 16.Ne5 Re5 17.Qd4+=) 14.de5+= Be5 15.Be5 Ne5 16.Ne5 Re5 17.Nc3 Be6?? (better 17...Qb6+=) 18.Qd4+- Qc7 (18...Rf5 19.f4 Ne8 20.e4+-) 19.b6 Qb8 (19...Qd6 20.f4 Re4 21.Ne4 Ne4 22.Bd3+-) 20.f4 (20.f4 Re4 21.Ne4 de4 22.Rc1+-) 1-0. DEFFM – GuestNJJH, freechess.org, 2021.

10.0-0 Re8 11.d4 Qa5 (11...cb5 12.Bb5 Bd7 13.Bd3=) 12.Bc3=+ Bb4 (12...Qc7!?=+) 13.Qd2+= Ne4? (better 13...Bc3 14.Nc3 b6+=) 14.Bb4+- Nd2 15.Ba5 Nf1 16.Kf1 Nd7 (16...cb5 17.Bb5 Bd7 18.Bd3+-) 17.Nc3 (17.Bc7 f6+-) 17...f6 18.Bc7 g5 (18...e5 19.e4 ed4 20.Nd4 de4 21.bc6 bc6 22.Bc4 Kh8 23.Nc6+-) 19.h4 g4 20.Ne1 h5 21.f3 f5 22.Nd3 Nf8 (22...Kf7 23.b6+-) 23.Nf4 Kf7 (23...Re7 24.Bd6 Rh7 25.Na4+-) 24.Nh5 Ng6 25.fg4 fg4 26.Nf4 Nh4 27.Bg4 Ke7 28.Bh5 Rg8 29.e4 Rg5 (29...de4 30.Ne4 cb5 31.Be5+-) 30.g3! Rh5 (30...Rg3 31.Nfd5 Double attack) 31.Nh5 (worse 31.gh4 Rh6 32.h5 Bd7+-) 31...Nf3 32.Be5 Nd2 (32...Ne5 33.de5 d4 34.Na4 cb5 35.Nc5+-) 33.Ke2 Nc4 34.Kd3 Kf7 (34...Nb2 35.Ke3+-) 35.g4 Kg6 36.Bf6 cb5 37.e5 Bd7 38.Nf4 Kf7 39.g5 Kg8 (39...Nb2 40.Ke2 Na4 41.g6 Kg8 42.Nfd5 ed5 43.Nd5+-) 40.g6 (40.Ng6 Be8 41.Ne7 Kh7+-) 40...Be8 (40...b6 41.g7 Na5 42.Nd1+-) 41.g7 Nb6 (41...Nb2 42.Kd2 b4 43.Nb5 Nc4 44.Kc1+-) 42.Ne6 b4 43.Na2 Bg6 44.Ke3 Nc4 45.Kf4 Nb6 (45...Bc2 46.Nb4 Be4 47.Nc5+-) 46.Nb4 Nd7 (46...Be4+-) 47.Nd5 Bh7 (47...Kh7 48.Nf8 Kg8 49.Ne7 Kf7 50.g8Q Ke8 51.Qg6 Kf8 52.Qg8) 48.Ng5 Bc2 (48...Nf6 49.ef6 Bc2 50.Ne7) 49.Ne7 1–0. onur604 (2320) – tohidh69 (2090), lichess.org, 2020.

10.0-0 Re8 11.Be5 Be5 12.Ne5 Qd6 13.f4 Nfd7 14.d4 f6 15.Bd3 f5 (15...Nf8 16.Nf3+=) 16.c4 Ne5 17.c5 Qe7 18.fe5 (worse is 18.de5 Qc5 19.Qd2 cb5-/+) 18...Qg5 (18...b6 19.cb6 c5 20.Nc3+=) 19.Rf3 h5 (19...cb5!? 20.Bb5 Nc6+/–) 20.Rh3 g6 21.Rg3 Qh6 22.h4 (22.b6 h4 23.Rf3 g5+-) 22...Kf7 23.Nc3 Rg8 24.Rg5 Qf8 25.Qa4 Bd7 26.Qa7 Qc8 27.Qb6 (27.b6 Kg7+-) 27...Rg7 28.Qa5 cb5 29.Bb5 Nc6 30.Qa1 Qb8 31.Be2 b6 32.cb6 Qb6 33.Bf1 Rg8 34.Rg3 Rc8 35.Qa3 (35.Ne2 Qa5 36.Qd1 Ne7+=) 35...Na5 (35...Nd4 36.ed4 Qd4 37.Kh1 Qh4 38.Rh3+=) 36.Na4 Ba4 37.Qa4 Qc7 38.Rf3 Nc4 39.Bc4 dc4 40.e4 c3 41.Qc2 (41.Rc3! Qc3 42.Qd7 Kf8 43.Qd6 Kg7 44.Qe7 Kh6 45.Qg5 Kh7 46.Qe7 Kg8 47.Qe6 Kh7 48.Qe7 Kh6 49.Qg5 Kg7 50.Qf6 Kh6 51.Qg5 Kg7 52.Qf6 Kh6 53.Qg5=) 41...Qc4-/+ 42.ef5? (better is 42.d5 Qd4 43.Kf1 Qe5 44.de6 Ke6 45.ef5 gf5 46.Qc1-/+) 42...Qd4-+ 43.Kf1 gf5?? (better is 43...Qc4 44.Kg1 gf5-+) 44.Rf5= ef5 45.Qf5 Ke7 46.Qf6 Kd7?? (better is 46...Ke8 47.Qh8 Ke7 48.Qf6 Ke8 49.Qh8 Ke7 50.Qf6=) 47.e6+- Kd6 48.Qd4 (48.Qd4 Ke6 49.Qe4 Kd6 50.Qg6 Kd7 51.Qf5 Kd8 52.Qh5+-) 1–0. Dias Da Silva,Adriano (1995) – Nikolic,Jovane (1690), Sao Paulo BRA, 3rd IRT Open, 2013.

10.bc6 Nc6 11.Nc3 +=.

9.Nc3 Bd6 10.Qb1 0-0=+ 11.Be2 (11.Ne2 Re8=+) 11...c5 (11...e5 12.0-0=+) 12.0-0 (12.Qa2 Qc7=) 12...c4 (12...e5 13.d3=+) 13.d3 cd3 14.cd3 Qb6 (14...e5 15.b6=) 15.h3 (15.Rc1 Rc8+=) 15...Rc8 (15...Rd8 16.Qa2=) 16.Rd1 (16.Rc1 Be8=) 16...h6 (16...e5 17.Qb3=) 17.d4 (17.Rc1 e5=) 17...Be8 (17...Qa5 18.Qb3=) 18.Na4 (18.e4 de4 19.Nd2 Bf4 20.Nde4 Nbd7+=) 18...Qd8 (18...Qa5 19.Nc5 Bc5 20.dc5=) 19.Qb3 (19.Bd3 Nbd7=) 19...Nbd7 20.Bb2 (20.Bd3 Kh8=) 20...Nb6 (20...Qe7 21.Nc3=) 21.Nb6 Qb6 22.Rc1 Rc1=+ 23.Bc1 Ne4 24.Nd2? Nd2?? 25.Bd2= Kf8 26.Bd3+= Ke7 27.Bb4 Bd7 28.Qc3 Qc7?? 29.Qc7+- (29...Bb4 30.b6+-) 1–0. Fredek (2090) – Guest441072, Freundschaftspartie, 5m + 0s, 2005.

9.Nc3 Bd6 10.Be2 0-0 =+.

9.c4 dc4 10.bc6 Bc6 11.Bc4 Nbd7 12.0-0 Be7 (12...Qc7 13.d3=+) 13.d4 0-0 14.Nbd2 Nb6 15.Bd3 Qd5 (15...Qd6 16.e4 Qf4 17.Qb1=) 16.e4+= Qh5 17.Re1 (17.Ne5 Ra8+=) 17...Ra8 18.Qb3 Nfd7 19.Nf1 Ra3 20.Qd1 (20.Qb1 Qg4=) 20...Bb4 21.Ng3 Qa5 22.Rf1 Ba4 23.Qe2 (23.Qb1 Rb3 24.Qc2 Rd3 25.Qd3 Bb5=) 23...Bb3 24.Bb2 Ra2 25.d5 (better 25.Rb1!? Na4 26.e5=+) 25...Na4-+ (25...ed5?! 26.ed5 Nf8 27.Nf5 Bd5 A) 28.Ng7? Bc3 29.Nf5 Rb2-+ (29...Bb2 30.N3d4 Ne6 31.Qg4 Kf8 32.Qh4=+); B) 28.Qe5=+) 26.Rb1 Bc3 (26...Rb2?! 27.Rb2 Nb2 28.Qb2=+) 27.de6 Be6 (27...fe6?! 28.Bc4 Rb2 29.Rb2 Nb2 30.Bb3=) 0-1. kovacic (2280) - planic (2235), ChessWorld.net, 2013.

9.c4 dc4 10.bc6 Nc6 11.Bc4 Bd6 (11...Be7 12.Nc3=) 12.0-0 Qc7 13.Nc3 (better 13.Bf6 gf6 14.g3+=) 13...Rg8?? (better 13...Nd4! 14.Nd4 Qc4=) 14.Nb5+- Qb8 15.Nd6 Qd6 16.d4 (16.Qe2 Ke7+-) 16...g5 (16...Ke7 17.Qe2 Ra8 18.Bb2+/-) 17.Qc2 g4 (17...Kf8 18.Bc3+-) 18.Ne5 h5 19.Rb1 h4?? (better 19...Qc7+-) 20.Rb7 g3 (20...Qa3 21.Bf1 Nd8 22.Bb2+-) 21.Bb5 (better 21.Nd7 gf2 22.Kf2 (22.Qf2?! Nd7 23.Bb5 h3+-) 22...Ng4 23.Ke2 Qh2 24.Qe4+-) 21...Qa3 (21...gf2 22.Qf2 Ne5 23.de5 Qd1 24.Qf1 Rg2 25.Kg2 Qd5 26.Qf3 h3 27.Kg3 Ne4 28.Kf4 Qb7 29.Bd7 Qd7 30.Qe4 Qd2 31.Qc6 Ke7 32.Qd6 Qd6 33.ed6 Kd6+-) 22.Bb2 gf2 (22...Qa5 23.Bc3 gf2 24.Kf1 h3+-) 23.Qf2 Qa2 24.Bc6 (better 24.Qf6 Qb1 25.Bf1+-) 24...Bc6 25.Nc6 (better 25.Rb8 Ke7 26.Nc6 Kd6 27.Qc2 Rb8 28.Qc5 Kc7 29.Nb4 Kd7 30.Na2 Rb2 31.Qa7 Ke8 32.Qa8 Kd7 33.Nc3+-) 25...Ne4?? (better 25...Qb1 26.Qf1 Rg2 27.Kg2 h3 28.Kg1 Qg6 29.Kf2 Ng4 30.Ke1 Qb1 31.Ke2 Qc2 32.Ke1 Qb1 33.Bc1 Qc1 34.Ke2 Qc2 35.Ke1 Qc1 36.Ke2 Qc2 37.Ke1 Qc1=) 26.Qf7 1-0. Lance5500 (2415) - DaviatorGM (1950), lichess.org, 2019.

9.c4 c5 10.d4 (10.Be5 Be7+/-) 10...dc4 (10...Ne4!?=) 11.Bc4+/- Be7 (11...Qc7 12.Qd3+/-) 12.0-0 cd4 (better 12...0-0+/-) 13.Ne5 (13.Bd4!? 0-0 14.Nbd2+/-) 13...0-0 (13...de3 14.fe3 Bc8 15.Nd2=) 14.Qd4 Bc8 15.Qb2 (15.Nd2!?+=) 15...Nbd7= 16.Nd3 (16.Nf3 b6=) 16...Nc5 (better 16...Nb6!? 17.Qa2 Nc4 18.Qc4 Qd5=+) 17.Nc5+= Bc5 18.Nd2 Qc7 (18...b6 19.Ne4 Be7 20.Qc2=) 19.Rc1 Qb6 (19...Qe7 20.Qc2+=) 20.Nb3 (20.Ne4 Be7+/-) 20...Be7 21.Qe2 Bd7 Exerts pressure on the isolated pawn 22.Bd4 Qd8 23.Rd1 (better 23.Qb2+/-) 23...Qb8?? (better 23...b6+=) 24.Bf6+- Bf6 25.Rd7 Rd8 26.Rd8 Qd8 27.Qd3 Qd3 (27...Qc7 28.Nd2+-) 28.Bd3 b6 29.g3 Be7 30.Kg2 Kf8 31.f4 (31.Bh7?! g6+-) 31...f6 (31...h6 32.Kf3+-) 32.Kf3 g6 33.e4 (33.Nd4 Ba3+-) 33...f5 (33...e5 34.f5+-) 34.h4 (34.e5 Kf7 35.Bc4 Ke8+-) 34...Ke8 (34...fe4 35.Ke4 Ke8 36.Nd4+-) 35.g4 (better 35.e5!? Kd7 36.Bc4 h6+-) 35...fg4 (35...fe4 36.Ke4 Bh4 37.g5+-) 36.Kg4 Kd7 (36...h5 37.Kh3 e5 38.fe5+-) 37.h5 gh5 38.Kh5 Bf8 (38...Bb4 39.e5 Bc3 40.Bh7+-) 39.e5 h6 (39...Bb4 40.Nd4 Bd2 41.f5 ef5 42.Bf5 Ke8 43.Bh7+-) 40.Nd2 (better 40.Bc4+-) 40...Ke7 (40...Ba3+-) 41.Nc4 Kd7 (41...Kf7 42.Nb6 Ke8 43.Nc4+-) 42.Nb6 Kc7 43.Nc4 Kd7 44.Be4 Ke7 (44...Kc8+-) 45.b6 Kd7 46.b7 Kc7 47.Nd6! Kb8 (47...Bd6 48.ed6 Double attack (48.Kh6 Deflection; 48.ed6 Passed pawn)) 48.Kg6 Bd6 49.ed6 Ka7 (49...h5 50.d7 Kc7 51.b8Q Kd7 52.Qa7 Kd8 53.Bc6 Kc8 54.Qd7 Kb8 55.Qb7) 50.d7 Kb8 (50...Kb6 51.d8Q Kc5 52.b8Q Kc4 53.Qb2 h5 54.Qdd4) 51.d8Q Ka7 52.b8Q Ka6 53.Qdb6 (53.Qbb6) 1-0. Lance5500 (2415) - parrotz (1700), lichess.org, 2017.

9.bc6 Nc6 10.Ne5 =.

9.Be2 cb5 10.Ne5 Bc6 11.0-0 Bd6 12.f4 0-0 13.Bd4 Nfd7 (13...Qc7 14.Qc1=+) 14.Bd3 f5 15.Nc3 Exerts pressure on the isolated pawn (15.Nf3 Na6=) 15...Nc5 (15...b4!? 16.Ne2 Nc5=) 16.Nb5+= Nd3 (16...Be7 17.Qe2+=) 17.Nd6 Qd6 18.Nd3 Nd7 19.Qa1 Qc7? (better 19...Qe7!?+=) 20.Bg7+- Rf7 21.Be5 Ne5 22.Ne5 Rg7?? (better 22...Re7+-) 23.Qa8 (23.Qa8 Qd8 24.Qd8 Be8 25.Qe8) 1–0. GuestYTNF – GuestQGLH, freechess.org, 2018.

9.Ne5 Bd6 10.c4 Be5 11.Be5 cb5? (better 11...0-0+=) 12.cb5+- 0-0 13.Nc3 b6 (13...Qe7 14.Qa4 Qc5 15.Bf6 gf6 16.Qg4 Kh8 17.Qh4+-) 14.Qf3 (14.Qa4!? Qc8 15.Bd3 Ne4 16.Be4 de4+-) 14...Be8 15.Be2 Nbd7 16.Bd6 Nc5 17.Bf8 Kf8 18.0-0 Nce4 19.Qf4 Nd2 20.Ra1 Nde4 21.Ra7 (21.f3 Nd6+-) 21...Nc3 (21...Qc8!? 22.Ne4 Ne4+-) 22.Qb4+- Kg8 23.Qc3 Ne4 24.Qa1 (24.Qa3 Nf6+-) 24...h6 (better 24...Qd6+-) 25.Ra8 Qe7 26.Rb8 Kh7 (26...Kf8 27.Qa8+-) 27.Rb6 Qc5 (27...Qc7 28.Ra6 Qc2 29.Ra2+-) 28.Rb8 Bb5 (28...Nd6+-) 29.Rb5 Qc2 30.Qf1 (better 30.Qb2 Qb2 31.Rb2+-) 30...Nd2 (30...f5+-) 31.Bd3 Ne4 (31...g6 32.Bc2 Nf1 33.Kf1 Kg8+-) 32.Bc2 (32.Bc2 Kg6 33.f3 f5 34.fe4 h5 35.ef5 Kf7 36.Rb7 Kf6 37.fe6 Ke5 38.Rb6 d4 39.Qf5) 1–0. DEFFM – lionjoshi, freechess.org, 2019.

9.Ne5 Bd6 10.f4 0-0 11.Bd3 (11.Nc3=) 11...c5 (better 11...cb5!? 12.Nd7 Nbd7=+ (worse 12...Qd7 13.Bf6 gf6 14.Qh5+-)) 12.c4+= Ne4 (12...dc4 13.Bc4 Bc8 14.0-0+=) 13.0-0+- f6 (13...Bc8 14.Qb3+-) 14.Nd7 Nd7 (better 14...Qd7!? 15.Nc3 f5+-) 15.cd5+- ed5 16.Qb3 c4 17.Bc4! dc4 18.Qc4 Kh8 19.Qe4 Qa5? (better 19...Nc5 20.Qd5 Qe7+-) 20.Qb7 Nc5 21.Qc6 Rc8 (21...Qc7 22.Qc7 Bc7+-) 22.Qc8 (22.Qc8 Qd8 23.Qd8 Bf8 24.Qf8) 1–0. DEFFM – EdgarLoys, freechess.org, 2019.

9.Ne5 Be7 10.Be2 (10.Nc3 0-0=) 10...cb5=+ 11.Nd7 (11.0-0 b4=+) 11...Qd7 (worse 11...Kd7 12.Bb5 Nc6 13.0-0+=) 12.Nc3 (12.Bf6 Bf6 13.c3 0-0=+) 12...b4 13.Nb5 0-0 14.0-0 Nc6 15.f3 Ra8 16.Qb1 Ra4 17.Nd4 Qc7 18.Nb3 (18.Nb5 Qb6=+) 18...Ra8 (18...Ne5 19.Qd1-/+) 19.f4=+ Ne4 20.Bd3 Qd8 21.Be4 de4 22.Kf2 (22.Qd1 Bf6-/+) 22...Qd5 23.Kg1 Na5 24.Na5 Ra5 25.Bd4 f6 26.Rd1 Ra2 27.d3 Ra3 28.Bb2 Ra8 29.de4 Qe4 30.Rd3 Bc5 31.Kh1 e5 (worse 31...Be3 32.Qe1 Ra2 33.Re3 Qc2 34.Re2+=) 32.fe5 fe5 33.h3 h6 (33...Be3? 34.Qe1+-) 34.Qe1 Ra6 35.Qg3 (35.Qd1 Rf6 (35...Be3 36.Qe2+-) 36.Rd8 Kh7-/+) 35...Rg6 (35...Rd6 36.Qe5 Qe5 37.Be5 Rd3 38.cd3 Be3 39.d4-+) 36.Qf2 (36.Qf3 Qf3 37.gf3 Rd6 38.Rd6 Bd6-/+) 36...Rf6 37.Qe2 Kh7 38.Qg4 (38.Rb3 Rg6 39.Kh2 Rd6-/+) 38...Qg4-+ 39.hg4 e4 40.Rd7 Rg6 41.Bd4 b6 42.Kh2 Bd4 (better 42...Rg4!? 43.Rd5 Rg5 44.Rg5 hg5-+) 43.Rd4=+ ½–½. Luzuriaga,Norberto Horacio – Nittschalk,Karl, Tiger SC, 1999.

10.c4 Bd6 11.Bd3 0-0 12.Qc2 h6 (12...Na6 13.Be5 Nb4 14.Qc3+=) 13.c5 Bc7 14.0-0 Qe7 15.Ne5 Bc8 16.f4 Nbd7 (16...Nfd7 17.Nd7 Nd7 18.Bd4=) 17.Nc6+= Qc5 18.Rc1 Bd6 19.Bd4 ½–½. Tselkovskiy,Kirill (2025) – Galaktionov,Artem (1940), Lazy Poland, 9th Baltic Pearl Open, 2013.

10.c4 Bd6 11.d4 Bb4 12.Bc3 (White is in command) 12...Qa5 (12...Bc3 13.Nc3 Qa5 14.Qd2=) 13.Qb3 Bc3 (13...c5 14.Bb4 Qb4 15.Nbd2=) 14.Qc3+= Qa2 15.Nfd2 (15.Bd3 dc4 16.Qc4 Qc4 17.Bc4 Ke7+=) 15...0-0 16.Bd3 c5? (better is 16...Na6+=) 17.Na3+- (17.dc5?! Na6 18.cd5 Nc5+=) 17...cd4 (17...dc4 18.Bb1 Nd5 19.Qc1+- (19.Ba2 Nc3 20.Bc4 cd4=+)) 18.ed4 dc4 19.Bb1 Nd5 20.Qh3 Qb2 21.Qh7# 1–0. b4_player – opponent, gamecolony.com, 2007.

10.c4 Bd6 11.d4 Bc8 12.c5 Bc7 13.Nc3 =.

10.c4 Bd6 11.Be2 =.

10.c4 Be7 11.Be5 0-0 12.d4!? =.

10.c4 Be7 11.Be5 0-0 12.g4 Ng4-/+ 13.Bg7 Nf2?? (better is 13...Kg7 14.Rg1 f5-/+) 14.Rg1+- Re8 (14...Bg5 15.Kf2 Kg7 16.Ng5+-) 15.Bh6 Kh8 16.Ne5 (16.Kf2?! Bh4 17.Ke2 Rg8 18.Rg8 Kg8+-) 16...Nd3 17.Bd3 Bh4 18.Ke2 Qf6 19.Bg7 (19...Qg7 20.Rg7 Kg7 21.Qg1 Kf6 22.Qg4+-) 1–0. Medl – Radetzky, corr Hungary, 1985.

10.Be2 c5 =.

9.c4 dc4 10.Bc4 c5 11.0-0 Be7 (11...Bd6 12.d4+=) 12.Qb3 (12.d4 0-0+=) 12...0-0 (12...b6 13.Ne5=) 13.d3 (13.d4 b6+=) 13...Nb6 (13...b6 14.Rd1=) 14.Nbd2 (14.Rd1 Qd7+=) 14...Nc4 (14...Nfd7 15.Qc3 Nf6 16.Rd1+=) 15.Nc4 Qd5 16.e4 Qh5 17.Be5 Rd8 (17...Ng4 18.Bc7+=) 18.Ra1 Ne8 (18...Nd7 19.Bc7 Rf8 20.Ra8+/–) 19.Nb6+/– Bd6 (19...Bd7 20.Ra7 Qh6 21.Bb2+/–) 20.Bg3 (better is 20.Bd6!? Nd6 21.e5+- (21.Nc8?! Nc8 22.Qc2 Nb6+=)) 20...Bg3+= 21.hg3 White threatens.... what? 21...Nc7 22.Ra7 (22.Nc8?! Rc8 23.Qa4 h6=) 22...Qh6? (better is 22...h6+/–) 23.Qc4+- (23.Nc8?! Qc1 24.Kh2 Qh6 25.Nh4 Rc8=) 23...Nb5 24.Qb5 (24.Ra8 Nc7 25.Rc8 Rc8 26.Nc8 Na6+-) 24...Qc1 25.Kh2 Qh6 26.Nh4 g5 27.Qc5 gh4 28.gh4 Qh4 29.Kg1 Bd7 30.Rb7 Be8 31.g3 Qf6 32.e5 Qf3= With the decisive threat Bc6 33.Qe7 Qd1 34.Kh2+/– Qh5 35.Qh4 Qh4 36.gh4 Rd3 37.Rb8 Kf8 38.Nc4 Ke7 39.Nd6 Bc6 40.Rb6 Rc3 41.Ra6+/– f6 42.f4 fe5 43.fe5 Bd7 44.Ra7 (44.Ra5 Rd3+=) ½–½. Mittelbachert,Ulrich – Sinnwell,Horst, Ruhrgebiet, 1998. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.e3 Nbd7)

9.c4 c5 10.Be2 b6 (10...Bd6 11.0-0=) 11.d4 (11.cd5 ed5 (worse 11...Nd5 12.0-0+=) 12.Nc3 Bd6=+) 11...Bb7 12.0-0 Be7 (12...Qc7 13.cd5 ed5 14.dc5 bc5 15.Bf6 Nf6 16.Qa4=) 13.Nbd2 (13.dc5 Nc5 14.cd5 Bd5=) 13...Qc7 14.Bb2 (14.cd5 ed5 15.dc5 bc5=) 14...0-0 (14...cd4 15.Nd4 0-0 16.cd5 Bd5 17.Nc6 Bc6 18.Qc2=) 15.Qb3 (15.cd5 Nd5 16.Qc2 Ra8=) 15...Ng4 (15...Ra8 16.Rc1=+) 16.h3= dc4 (16...Ngf6 17.cd5 Nd5 18.Rc1=) 17.Bc4 (17.Qc2 Ngf6=) 17...Ngf6 18.Rc1 Ne4 (18...Ra8 19.Bd3=) 19.Bd3 Bd5 (19...Nd2 20.Nd2 Rd8 21.Qc4=) 20.Qc2+= f5? (20...Nd2 21.Bh7 Kh8 22.Nd2 f5+-) 21.Ne4+- fe4 22.Be4 Be4 (22...h6 23.Bg6+-) 23.Qe4 Nf6?? (better 23...Qd6+-) 24.Qe6 Kh8 25.Ne5 Bd6 26.Nc4 Bh2 27.Kh1 Re8 (27...cd4 28.Bd4 Re8 29.Qc6 Qc6 30.bc6+-) 28.Qb6 Qb6 (28...Ne4 29.Rc2 Qb6 30.Nb6 Bd6+-) 29.Nb6 Bd6 (29...Bc7 30.dc5 Ne4+-) 30.dc5 (30.dc5 Ne4 31.cd6 Nd6 32.Rc7+-) 1–0. DEFFM – GuestLPQT, freechess.org, 2019.

9.c4 Be7 10.bc6 bc6 11.d4=.

9.c4 Be7 10.Be2 0-0 11.0-0 Qc7 12.Qc1 cb5 13.cb5 Qc1 14.Rc1 Bc5 15.d4 Bb6 16.Bc3 g6 17.Bb4 Re8 18.Nbd2 Kg7 19.Nb3 Ba7 20.Bd3 Bb8 21.Nfd2 b6 22.f3 Bb7 23.g3 Rc8 24.Rc8 Bc8 25.Kf2 Bb7 26.e4 de4 27.fe4 Ng4 28.Kg2 h5 (28...f5 29.Kg1=) 29.h3+= Nh6 30.Bc3 f5 31.Kf2 Kf6 (better 31...Nf6!? 32.e5 Nd5=) 32.e5+/- Kg7 33.Bc4 Nf8 (33...Kf7 34.Nf3 Bf3 35.Kf3+/-) 34.Bb4 Bd5 35.Bf8 (35.Bd5 ed5 36.Nf1 Ne6+/-) 35...Kf8+/- 36.Bd5 ed5 37.Nb1 Ke7 38.Nc3 Ke6 39.Nc1 g5 40.Nd3 Ng8 (40...f4 41.gf4 Nf5 42.Ne2+-) 41.Nb4 (41.h4 f4 42.gf4 gh4+-) 41...Ne7 (41...Be5 42.de5 Ne7+-) 42.Na6?? (better 42.Nc6 Nc6 43.bc6+-) 42...Be5+/- 43.de5 Ke5 44.Na4 (44.Nb4!?+/-) 44...Nc8+= 45.Nb4 d4 46.Ke2 Ke4 47.Nd3 Kd5 48.Ndb2 h4? (better 48...Nd6!?+=) 49.gh4+- gh4 50.Kf3 (50.Kd3 Nd6 51.Nb6 Kc5 52.Nd7 Kb5 53.Kd4 Ne4+-) 50...d3 (better 50...Na7!?+-) 51.Ke3 d2 52.Kd2 (52.Nc3 Kc5+-) 52...Kd4 53.Ke2 Nd6 54.Nb6 Nb5 55.Kf3 (55.Nd1 Ke4+-) 55...Ke5 (55...Nc3!?+/-) 56.Nd3 Kf6 (56...Kd4 57.Nf2+-) 57.Kf4 (57.Ke3 Nc7 58.Ne1 Nb5+-) 57...Nd4 58.Nd5 Ke6 59.Nc3 Kf6 60.Nc5 Kg6 61.Ke3 Nc2 62.Kf2 Nd4 63.Ne2 Nc6 64.Nf4 Kf6 65.Ng2 Kg5 66.Nd3 Ne7 67.Ne5 f4 (67...Nd5 68.Nf3 Kf6 69.Nfh4+- (69.Ngh4?! Nf4+/-)) 68.Nf3 Kf5 69.Ngh4 (worse 69.Nfh4 Ke4+-) 69...Ke4 70.Ng5 Ke5 71.Kf3 Nd5 72.Ng2 Kf5 73.Ne4 Ke5 74.Nf2 Kf5 75.Nd3 Kg5 76.Ndf4 Nf4 77.Nf4 Kh4 78.Kg2 (78.Ke3 Kg5 79.Ke4 Kf6+-) 78...Kg5 79.Kg3 Kf5 80.h4 Kf6 (80...Ke5+-) 81.Kg4 Kg7 82.Kg5 Kh7 83.h5 (83.Ne6 Kg8 84.Kg6 Kh8 85.h5 Kg8 86.h6 Kh8 87.Ng5 Kg8 88.h7 Kf8 89.h8Q Ke7 90.Qd4 Ke8 91.Nf7 Ke7 92.Qd6 Ke8 93.Qd8) 83...Kg7+- 84.Ng6 Kh7 85.Nf8 Kg7 86.Ne6 Kh7 87.h6 Kh8 88.Kg6 Kg8 89.Ng5 Kh8 (89...Kf8 90.h7 Ke7 91.h8Q Kd6 92.Qd4 Kc7 93.Ne6 Kc6 94.Qc5 Kb7 95.Qb5 Kc8 96.Qc6 Kb8 97.Qb6 Kc8 98.Qc7) 90.Nf7 (90.Nf7 Kg8 91.h7 Kf8 92.h8Q Ke7 93.Qd8 Ke6 94.Qd6) 1-0. Engelhardt,Er (1765) - Wilke,Hans_Peter, Lichtenberger Sommer (9), 2018.

9.c4 Be7 10.Be2 0-0 11.0-0 Qc7 12.Nc3 b6 (better 12...Nb6!?=) 13.bc6+/- Qc6 14.cd5 Nd5 15.Nd4 Qb7 16.Bf3 (16.Nd5 Qd5 17.Qc2 Qc5+/-) 16...N7f6 (16...Ne5 17.Nf5+=) 17.Qb3+/- Bd7 18.Rb1 (18.Nf5 ef5 19.Nd5 Nd5 20.Bd5 Qc7+/-) 18...Rb8 19.g4 (19.Nf5 A) 19...ef5? 20.Nd5 (20.Bd5?! Nd5 21.Nd5 Bf8+=) 20...Be6 21.Be5+-; B) 19...Bf8+/-) 19...h6+= 20.h4 Ng4? (better 20...Qa6+=) 21.Bg4+- (21.Nd5?! ed5 22.Bd5 Qc7 23.Bf7 Kh8+/-) 21...Bh4 (21...Nc3 A) 22.dc3?! Qe4 23.Bf3 Qg6 24.Bg2 e5+/-; B) 22.Qc3? Qe4 23.Nf5 Qg4 24.Ng3 Rc8-+ (24...Bh4?! 25.Rb4 Qd1 26.Kg2-/+); C) 22.Bc3 Bh4 23.Nf3+-) 22.Bf3 Be8 (22...Bf6 23.Nd5 ed5 24.Bd5+-) 23.Nf5!! ef5 24.Nd5 (24.Bd5?! Qe7+-; worse 24.Qd5 Qd5 25.Nd5 b5+-) 24...Qd7 25.Be5 Rd8 (25...Rc8 26.Qb6 Bd8 27.Qb4+-) 26.Qb6 Qa4 (26...Qe6 27.Qd4 f4+-) 27.Rb4 Qc2 (27...Qc6 28.Ne7! Be7 29.Bc6 Bc6+-) 28.Rh4 (28.Rh4 Rd5 29.Bd5 Qc8 30.Qg6 Qc1 31.Kh2 Qh1 32.Kh1 Kf8 33.Rh6 f4 34.Rh8 Ke7 35.Qd6) 1-0. Lance5500 (2615) – milliways, lichess.org, 2017.

9.c4 h6 10.Be2 Be7 11.0-0 dc4 12.bc6 bc6 13.Bc4 Nb6 14.Be2 Nbd5 15.Ne5 Bd7 (15...Bb7 16.Qa4=) 16.Qc2 Nb4 17.Qc4 0-0 18.Nd7 Nd7 19.Qg4 e5 20.Bc4 Nd5 21.Qf3 Bf6 (21...N5b6 A) worse 22.Qc6 Qa8 (22...Nc4 23.Qc4 Qb8 24.Rc1+/-) 23.Qa8 Ra8-+ (worse 23...Na8 24.d4+/-); B) 22.Be2+=) 22.Bd5+/- cd5 23.Qd5 Qe7 24.Nc3 Rd8 25.Ne4 Nb6 26.Qc6 Nd5 27.Rb1 Bg5 (27...Kf8!?+/-) 28.Rb7+- Qe6? (better 28...Qa3 29.Be5 Qd3+-) 29.Qe6 fe6 30.Ng5 hg5 31.Be5 Nf6 32.d4 g4 33.Re7 Re8 (33...Ra8 34.f3 gf3 35.gf3 Ra6+-) 34.Bf6 (34.Bf6 Re7 35.Be7+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Bd4 c5 10.Bc3 (10.Bb2 Bd6=+) 10...c4 (10...Bd6 11.Be2=+) 11.d3= cd3 12.Bd3 Qc7 13.0-0 e5 (13...Bd6 14.Re1=) 14.b6 Qd6 (14...Qb8 15.Bb5 Bd6 16.Ne1=+) 15.Bb5 Qb6 (15...e4 16.Ne5 Qb6 17.Nd7 Bd7 18.Bd7 Nd7 19.Qd5+=) 16.Bd7 Bd7 (16...Nd7 17.Ne5 Ne5 18.Be5=) 17.Ne5 (17.Be5 Bb5 18.Re1 Bb4+=) 17...Qe6 (better 17...Bf5!?=) 18.Nd7+- Nd7 19.Nd2 (19.Qd4 f6+-) 19...f6 (19...Qc6 20.Bd4+=) 20.Qf3 (20.e4 Qc6 21.Qh5 g6+-) 20...Be7+= 21.Rb1 b6 22.Qh5 g6 23.Qh6 Bf8 24.Qh4 Be7 (24...Bc5 25.Bd4+=) 25.Qh6 (25.Nf3 0-0+=) 25...Kf7 (25...Bf8 26.Qf4+=) 26.Nf3 (26.Bd4 Bf8 27.Qh4 Kg7+-) 26...Bf8 (26...Qg4 27.Rd1+=) 27.Qf4 (27.Qh4 Bc5+-) 27...Kg7 (27...Qc6 28.Rb3+-) 28.Nd4 Qf7 29.Qg4 (29.Qc7 Bc5+-) 29...h5 30.Qh3 Kg8 (30...Bd6 31.e4 de4 32.Rd1+=) 31.Rb5 (31.Ne6 Bd6+-) 31...Nc5 (31...Bc5!?+-) 32.Rb6+- Bg7? (better 32...Na4 33.Rb3 Kh7+-) 33.Qc8 Bf8 (33...Qf8 34.Qf8 Bf8 35.Rf6+-) 34.Rb5 (better 34.Ne6 Ne6 35.Re6 Kh7 36.Rf6 Qe7+-) 34...Ne4 (34...Kh7 35.Rc5 Bc5 36.Qc5+-) 35.Rb7 (better 35.Bb4 Kh7 36.Rb7+-) 35...Nd6 36.Rf7 Threatening mate: Qxf8 36...Nc8 37.Rf6 Kh7 (37...Rh6+-) 38.Ne6 Be7 (38...Bh6 39.Rf7 Kg8+-) 39.Rf7 Kg8 (39...Kh6 40.Bg7 Kh7 41.Bf8 Kg8 42.Rg7) 40.Rg7 1–0. Trkn – AVN, casual game, 2001.

9.Bd4 Bd6 10.Be2=+.

9.Be2 cb5 10.Bb5 Qa5 (10...Bd6 11.Be5 Be5 12.Ne5=) 11.Nc3 Bb4 12.0-0 0-0 13.Qe2 Nc5 (13...e5 14.Bd7 Nd7 15.e4 de4 16.Ne4=) 14.Bb2 Nce4 (14...Bd7 15.Ra1 Qb6 16.Bd7 Ncd7 17.Nb5=) 15.Ne4 (15.Ra1 Qc7 16.Ne4 Ne4+=) 15...Ne4 16.Ra1 Qc7 17.c3 (17.c4 dc4 18.Bc4 Nd6+=) 17...Be7 18.c4 Nf6 (18...dc4 19.Bc4 Nd6 20.Bb3+=) 19.Be5+- Qb6 20.Bd4 (20.d4 dc4 21.Bc4 Ng4+-) 20...Qd6 21.d3 (21.Ra7 dc4 22.Qc4 Rd8+-) 21...Nd7 (21...Bd7 22.Qb2 dc4 23.Bc4+=) 22.cd5 (22.Qb2 f6+-) 22...ed5 23.Qb2 f6 24.Rc1 Qe6 (24...Kh8 25.Rc2+-) 25.e4! Kh8 (25...de4 26.Bc4 Combination) 26.Qb3 Ne5 27.Be5 fe5 28.Qd5 Qd5 (28...Bd6 29.Qe6 Be6 30.d4 ed4 31.Nd4+-) 29.ed5 Bf6 (29...Bd6 30.Re1+-) 30.Re1+- Bf5 (30...Rd8 31.Ne5 Kg8 32.f4+-) 31.Ne5 h5 32.h3 (32.d6 Kg8+-) 32...h4 (32...Kg8 33.d4+-) 33.g4 hg3 34.fg3 Kh7 (34...Rc8 35.g4 Rc5 36.Bc4 (36.gf5?! Rb5 37.Ng6 Kh7+-) 36...Be5 37.Re5+-) 35.g4 Bg6 (35...Bc8 36.d4+-) 36.d6 Rd8 (36...Bh4 37.Re2+-) 37.d7 Bh4 (37...Kh6 38.Nf3 Bf7 39.h4+-) 38.Re2 (38.Rc1 Bf6 39.Rc8 Kh6+-) 38...Bg3 (38...Ra8+-) 39.h4! (39.Ng6?! Kg6 40.Re8 Bh4+-) 1–0. pcmvr – mgilbert, net–chess.com, 2017.

9.Ne5 Ne5 10.Be5 Bd6 11.Bf6 Qf6=+.

10.Bc3 Bb4 11.Be2 0-0 12.0-0 cb5 13.cb5 Re8 (13...Nc5 14.Qc2 Nce4 15.Qb2 Nc3 16.Nc3=) 14.Qb3+= Bc3 15.Nc3 Nc5 16.Qb2 Qb6 17.Rc1 Bd7 18.d4 Nce4 19.Na4 Qa5 Attacks the isolani on b5 20.Nc5 Rc8 21.Ne5 Nc5 (21...Be8!?+=) 22.dc5+/- (22.Rc5?! Ne4 23.Rc8 Bc8=) 22...Be8 23.c6 bc6 24.Nc6 Qb6?? (better 24...Bc6 25.Rc6 Rc6 26.bc6 Kf8+/-) 25.Ne7+- (25.Ne7 Kh8 26.Nc8+-) 1-0. DEFFM – GuestQRBS, freechess.org, 2021.

10.Nc3 Bb4 11.Qb1 0-0=+ 12.Be2 Ne4 13.Qb2 (13.Qc1 cb5 14.cd5 Bc3 15.Bc3 Nc3 16.Qc3 b4=) 13...Nc3=+ 14.dc3 Be7 15.0-0 Bf6 16.Nd4 (16.Qb4 Qa2 17.Bd3 Re8=) 16...Qc7=+ 17.Qa3 (17.Rd1 Rd8=+) 17...c5 (17...Rd8 18.Qa7 Ne5 19.c5=+) 18.Nf3 b6 (18...dc4 19.Bc4 b6 20.Qa4=+) 19.cd5= ed5 20.c4 Bb7 21.Bf6 (21.Qb3 Ra8 22.Bf6 Nf6=) 21...Nf6 22.Nd2 (22.Rd1 Ra8 23.Qc3 Qe7=) 22...Rd8 23.f3 (23.Ra1 d4=) 23...d4=+ 24.e4 (24.Qd3 Nd7=+) 24...d3 25.Bd1 Nh5 (25...Qf4 26.Qa7 Qd2 27.Qb7 Qe3 28.Kh1=+) 26.Qc3 Qd6 27.Nb3 Nf4 28.Rf2 g5 29.Rd2= Ng6 30.Bc2 Ne5 31.Bd3 Nd3 32.Nc1 Qf4 33.Rd3 Rd3= 34.Nd3 Qe3 35.Kf1 g4 36.Qc2 gf3 37.gf3 Qf3 38.Nf2 Bc8 39.Qd3 Qf6 40.Qg3 Kf8 41.Qb8 Qd8 42.Ke1+= Ke8 43.Qe5 Be6=+ 44.Nd1 Qd3 45.Qb8 Ke7 46.Qc7 Kf6 47.Qf4 Ke7 48.Ne3 Bc4 49.Qc7 Kf8 50.Qb8 Kg7 51.Qe5 Kf8 52.Qb8= ½–½. Staszko,Tadeusz – Vandorffy,Jozsef, corr ICCF EU–M–143, 1966.

10.Nc3 Bb4 11.bc6 bc6 12.Nd4 c5=.

10.Nc3 Bb4 11.cd5 cd5 12.Be2=.

10.Nc3 Bb4 11.cd5 ed5 12.Nd4 c5 13.Nc2 0-0 (13...Nb6 14.Nb4 Qb4 15.Na2=) 14.Nb4 cb4 15.Na4 Ne4 16.Bd3 (16.Be2 Nd6=) 16...b6 (16...Ndc5 17.Nc5 Nc5 18.Be2=) 17.0-0 g6 (17...Re8 18.Qc2=) 18.Qb3+= Nd2 (18...Bb7 19.Rb1+=) 19.Qb2 f6 20.Qd2 Qa4 21.Be2 Bb7 (21...Qb3 22.Bd1 Qc4 23.Bf3+=) 22.Bd4+= Rc8 23.Rc1 Rc1 24.Qc1 Qa2 25.Bf1 Nc5 26.Bf6 b3 27.Bb2 Na4 28.Bd4 (28.Qc7 Qb2 29.Qb8 Kg7 30.Qb7 Kh6+/–) 28...Qc2 29.Qa3 Nc5 30.f3 Qa2 31.Qb4 (< 31.Bc5 bc5 32.Qc5 b2=) 31...Qc2 32.Ba1 Nd3 33.Bd3 (33.Qh4 b2 34.Bb2 Nb2 35.Qd8 Kf7 36.Qd7 Kf8 37.Qb7 Nd1 38.Qb8 Kf7 39.Qf4 Kg8=) 33...Qd3 34.Bd4 Qd1 35.Kf2 Kf7 (35...Qc2 36.Kg3 Qc7 37.f4+/–) 36.Kg3 (36.Bb6 Qc2 37.Kg3 b2-/+) 36...Qc1 (36...g5 37.h3 Ke6 38.Qf8 Qe1 39.Kh2+-) 37.h3 (37.Qb3?! Qe1 38.Kh3 Bc8 39.g4 Qf1 40.Kg3 Qg1 41.Kh3 Qf1 42.Kg3 Qg1 43.Kh3 Qf1=) 37...Qc7 38.f4 Bc8 39.Qb3 Qc4 40.Qb2 Qc7 (40...Bd7 41.Bh8 (< 41.Bb6 Qb5 42.Qd4 h6+/–) 41...Bb5 42.Qg7 Ke6 43.Qg8 Kf5 44.Qh7+-) 41.Qa2 Ke6 (41...Qb7 42.e4 Ke6 43.e5+-) 42.Qa8 Qb7 43.Qb7 (43.Qa3 Bd7 44.Be5 Bb5 45.Qd6 Kf5+-) 43...Bb7 44.Bb6 Kf7 (44...Kd6 45.Bd4+-) 45.Bd4 Bc8 46.Kh4 h6 47.g4 Bd7 (47...Ke7 48.Bg7+-) 48.b6 Bc8 49.f5 Bb7 (49...Ba6 50.Kg3+-) 50.fg6 (50.Kg3 g5+-) 50...Kg6 51.Kg3 Kf7 52.Kf4 Kg6 53.h4 Kf7 54.h5 Bc8 (54...Kg8 55.Ke5+-) 55.g5 hg5 (55...Ba6 56.g6 Ke6+-) 56.Kg5 Kg8 57.Kg6 Ba6 58.h6 (better is 58.e4 Kf8 59.h6+-) 58...Kf8 59.h7 Bd3 (59...Ke7 60.h8Q Bd3 61.Kg7 Kd7 62.b7 Be2 63.Qc8 Kd6 64.b8Q Ke7 65.Qe5#) 60.Kf6 (60...Ke8 61.h8Q Kd7 62.b7 Kc6 63.b8Q Bf5 64.Qhe8 Bd7 65.Qb6#) 1–0. Mehlhorn,U – Kraft,G, BFH–074, 2001.

10.Nc3 Bd6 11.Be2 0-0 12.0-0.

10.Nc3 e5 11.Be2=.

10.Nc3 Be7 11.Be2 0-0 12.0-0 h6 (12...dc4 13.Bc4 Nb6 14.Be2=) 13.Bb2 (13.d4 cb5 14.Nb5 dc4 15.Bc4 Nb6+=) 13...dc4 14.Bc4 Nb6 15.Bd3 Rd8 16.Qc2 Nbd5 (16...c5 17.Be2 Qb4 18.Ra1+/-) 17.Ra1 Qc7 18.Nd5 Nd5 19.Be5 Bd6 20.Bd6 Qd6 21.bc6 bc6 (21...Nb4 22.Bh7 Kh8 23.Qb1+=) 22.Bh7 Kh8 23.d4 Nb4 24.Qb1 c5 25.Ne5 Qc7 26.Be4 cd4 27.Nf3 Nd5 28.Nd4 Nc3 29.Qc2 e5 30.Ne2 Ne2 31.Qe2 f5 32.Qc2 Qc2 33.Bc2 Rd2 34.Bb3 Bd7 (34...Kh7 35.h4=) 35.g3 (35.Ra8 Kh7=) 35...Kh7 36.h4 Bc6 37.Ra5 (37.h5 Be8 38.Ra5 Bh5 39.Re5 Kg6=) 37...Rb2 (37...Bf3 38.Rb5=+) 38.Bd5= Rb5 39.Rb5 Bb5 40.e4 f4 41.gf4 ef4 42.Kg2 g5 43.hg5 hg5 44.Be6 Kg6 45.e5 Bc6 46.Kh3 (better 46.f3+=) 46...Be4 (better 46...Bf3!?=) 47.Kg4+/- Bc2 48.Kf3 (48.Bc8!?+=) 48...Bf5= 49.Bd5 Kg7 50.Be4 Be6 51.Bd3 Kf7 52.Ke4 Ke7 (52...Kg6 53.Kd4 Kh5 54.f3=) 53.Bb5 Bh3 54.Bc4 Bd7 55.Bd3 Ke6 (55...Be6 56.Bf1+=) 56.Be2 Bc6 57.Kd4 f3 58.Bc4 Kf5 59.e6 g4 60.Ke3 Ke5 61.Bb3 Be8 62.Bc4 Bc6 63.Bb3 Be8 64.Bc4 Bg6 65.Bb3 Be8 ½-½. wgr069 (2210) - leniclukachess (2310), Bobby Fischer Cup Blitz, 2021.

11.bc6 dc4 12.Be2 =+.

11.bc6 bc6 12.cd5 ed5 13.Be2 Bd6 =.

11.bc6 bc6 12.Ne5 Bb7 13.cd5 ed5 14.f4 =.

11.bc6 bc6 12.Ne5 Bd7 13.Be2 Bd6 14.f4 0-0 15.0-0 Ra8 (15...Rb8 16.d3=) 16.g4 (16.Qc2 dc4 17.Bc4 Be5 18.fe5 Ng4=) 16...Be8 (16...dc4 17.Bc4 Nc4 18.Nc4=) 17.Qe1 (17.g5 Be5 18.fe5 Nfd7 19.cd5 cd5=) 17...Na4 (17...dc4 18.Bf3=+) 18.Na4 (18.g5 Ne4 19.Ne4 de4=) 18...Qa4 19.g5 Ne4 20.d3 Bb4 21.Qh4 (21.Qd1 Qd1 22.Rd1 Nc3 23.Bc3 Bc3=) 21...Nd6 (better is 21...Nd2!? 22.g6 hg6-+ (22...Nf1?? 23.gh7 Kh8 24.Ng6 fg6 25.Bg7 Kg7 26.h8Q Kf7 27.Q4h7)) 22.Qf2=+ Qc2 (22...Bc5 23.d4 Ba3 24.c5=+) 23.Bg4= Qf2 24.Kf2 dc4 (24...Ra2 25.Kf3=+) 25.Nc4= Nc4 26.dc4 c5 27.Be5 Ra2 28.Kg3 Ba4 (28...Bc6 29.Rd1 Rg2 30.Kh3=) 29.Ra1 ½–½. Spassky,Boris – Smyslov,Vassily, Leningrad–Moscow, 1960.

11.cd5 cd5 12.Bd3 Bd6 =.

10.Nc3 e5 11.d4 =+.

10.d4 Bb4 11.Bc3 Be7 +=.

10.d4 Bb4 11.Nbd2 Qa5 12.bc6 bc6 13.Bd3 Ne4 14.Ke2 (14.Be4? de4 15.0-0 ef3 16.Nf3 0-0-+) 14...Nd2 15.Nd2 c5 (15...Ba6 16.Bb2=+) 16.Nb3 (16.Qc2 Qa8=) 16...Qa8 17.cd5 cd4 (17...Qd5 18.dc5 Qh5 19.f3 Nc5 20.Nc5 (20.Bg7? Qg5 21.Bb5 Ke7-+) 20...Bc5 21.Qa4 (21.Bg7 Qg5 22.Bb5 Ke7=+) 21...Ke7 22.Rc1+= (< 22.Bg7 Qg5 23.Bh8 Qg2 24.Ke1 Qh1 25.Bf1 Qh2-/+)) 18.Bd4 (18.de6!? fe6 19.Nd4+= (< 19.Bd4 e5 20.Bb2 Qg2=)) 18...e5= 19.Bb2 Qd5 20.Qc2 Ke7 21.f3 Nc5 (21...Bb7 22.Bc3 (22.Bh7? g6-+) 22...Bc3 23.Qc3=) 22.Nc5+= Bc5 23.Ra1 (< 23.Bh7 Rh7 24.Qh7 Ba6 25.Ke1 Qc4=+) 23...Bd7 (better is 23...Be6!?+=) 24.Ra5+- Rc8 25.Ba3 (25.Bh7?! g6 26.Qc3 Kd6=) 25...Kd6? (better is 25...Ba3 26.Rd5 Rc2 27.Bc2 Bd6+-) 26.Be4 (26.Bh7?! Be6+/–) 26...Ba4 27.Ra4 (27.Bd5?! Bc2 28.Bf7 e4+/–; 27.Qa4 Qa2 28.Ke1 Qa1 29.Kf2 Qa2 30.Kg3 Qe2+-) 27...Ba3 28.Qc8 (28...Qb5 29.Rc4+-; 28.Bd5?! Rc2 29.Kd3 Rg2 30.Bf7 Bb2=) 1–0. Nebe,L – Houben,R, corr, 1988.

10.d4 cb5 11.c5 Qa5 12.Bc3 =.

10.cd5 cd5 11.Be2 0-0 12.0-0 e5 13.d3 (13.Nc3 Qc7=+) 13...Re8 14.Nbd2 Nb6 (14...Qa5 15.Qb1=+) 15.Qb3= Bf5 16.Bb2 Qe7 17.Rc1 Nfd7 18.Qd1 Be6 19.Ra1 f6 20.Ra7 Nf8 (20...Qd8 21.g3= (21.Rb7? Qa8 22.Rb6 Nb6-+)) 21.Ne1 (21.Nb3 Rc8=) 21...Rc8=+ 22.Qa1 (22.h3 Bb8 23.Ra2 d4-/+) 22...Bb8 23.Qa3 (23.Ra3 Ng6-/+) 23...Qd7-/+ Black intends d4 24.Ra5 Bd6 25.Qb3 d4 26.Bg4 Bb3 27.Bd7 Nfd7 28.Nb3 de3 29.fe3 Bb4 30.Ra1 Nc5 31.Nc5 Rc5 (31...Bc5?! 32.d4 ed4 33.Bd4 Bd4 34.ed4=+) 32.Ba3 (32.Nf3 Rd5 33.Rd1 Rb5-/+) 32...Ba3 (32...Rb5 33.Rb1 Nd5 34.Nc2+-) 33.Ra3 Rb5 34.Kf2 Nd5 (34...Kf7 35.g4-/+) 35.Kf3 (35.d4 e4 36.g4 Kf7-/+) 35...Rb1 36.Nc2 Kf7 37.Ra7 Ke6 38.h3 (38.Ke2 Ne7-+) 38...Rb2 39.Ne1 f5 (39...h5 40.Ra8-+) 40.g4 (40.e4 Nf4-+) 40...f4-+ 41.Ng2 g5 42.ef4 (better 42.Ra8-+) 42...ef4 43.Ra5 (43.Ra4 Nb4 44.Ra5 h6-+) 43...Rd2 44.Ne1 Rh2 45.Ke4 Nf6 46.Kd4 h6 47.Nf3 (47.Rb5 Rh3 48.Rb6 Ke7 49.Rb7 Kd8-+) 47...Rh3 48.Ne5 f3 49.Rb5 (49.Ra1 f2 50.Rf1 Rh2-+) 49...Nd5! 50.Nf3 (50.Rd5 f2 Passed pawn) 50...Rf3 51.Rd5 (51.Rb7 Rf4 52.Kc5 Rg4 53.Rb2-+) 51…Rd3!! (51...Rd3 52.Kd3 Kd5-+) 0–1. GuestPDGQ – GuestXLRS, freechess.org, 2020.

10.Be2 0-0 11.0-0 cb5 12.cb5 e5 13.Qc2 =+.

10.Be2 0-0 11.0-0 e5 12.c5 Bc5 13.Ne5 Bd6 =.

10.Be2 0-0 11.0-0 e5 12.bc6 bc6=+ 13.Qa4 (13.c5 Bb8=+) 13...Qc7 14.h3 c5 (14...e4 15.Nd4=+) 15.cd5= e4 (15...Nd5!? 16.Nc3 Bb7=) 16.Ng5+= Nb6 17.Qc2 Nbd5 (17...Bh2 18.Kh1 Be5 19.Nc3+/–) 18.Ne4 Ne4 19.Qe4 Bb7 20.Bf3 (20.Qf5 Ra8 21.Nc3 Ne7+/–) 20...Rb8 (20...Ra8 21.Nc3 Nc3 22.Qb7 Qb7 23.Bb7+/–) 21.Qf5 (21.Qg4 Bh2 22.Kh1 Be5 23.Be5 Qe5+/–) 21...Ne7 22.Qg5 (22.Qg4 Ng6+=) 22...Ng6 23.Bb7 Qb7 24.Nc3 Be5 25.f4 f6 26.Qf5 Bc3 27.Bc3 Qg2+= 28.Kg2 Nh4 29.Kg3 Nf5= 30.Kf3 c4 31.Ra1+= Nd6 32.Ra4 Rc8 33.Rb4 f5 34.Be5 Rd8 35.d4 cd3 36.Rd4 Nf7=+ 37.Rd8 Nd8-/+ 38.Bc3 ½–½. Jaskulski,Klaus – Markus,Roland, corr DDR–ch I243, 1983.

11.d4 Bb4 12.Qa4 c5 13.dc5 Bc5 14.cd5 Nb6 =.

12.0-0 Qc7 13.bc6 bc6 14.cd5 e4 =.

12.0-0 Qc7 13.g3 dc4 14.Bc4 Nb6 15.Be2 =+.

12.0-0 Qc7 13.g3 e4 14.Nd4=+ dc4 (14...c5 15.Nf5 dc4 16.Qc2-/+) 15.bc6 bc6 16.Bc4 (16.Qc2 Re8=+) 16...Ne5 17.Be2 Bh3 18.Re1 Rd8 (18...c5 19.Ndb5 Qc6 20.Nd6 Qd6 21.Nb5=+) 19.Qa4 (19.Qb1 c5 20.Ndb5 Qc6 21.Nd6 Qd6=+ (< 21...Rd6 22.Qb8 Bc8 23.Nb5 Rd2 24.Nc7+-)) 19...h5 (19...c5 20.Ndb5 Qc6 21.Nd6 Qd6 22.Ne4 Ne4 23.Qe4 Qd2 24.Qb1=+) 20.Nc2 (20.Qc2 c5 21.Ndb5 Qc6 22.Nd6 Rd6=) 20...Nf3 (better is 20...Bf5!?-/+) 21.Bf3= ef3 22.Ne4 (22.Nd4 Bg2=) 22...Ne4 23.Qe4 c5 (23...Bg4 24.Nd4=) 24.Bc3 (24.Qf3!? Bg4 25.Qe4+=) 24...Bg4=+ 25.Na3 Qd7 (25...Qe7 26.Qc2=+) 26.Nc4= Bc7 27.Ra1 f5 28.Qb7 Rb8 29.Ra8 Ra8 30.Qa8 Kh7 31.Qf8+= Bb8 32.Qb8 Qa4+= 33.Qb1 Qc4 34.Qb7 Qg8 35.d3 Qf8 36.Be5 Kg8 37.Qc7 Qf7 38.h4 Qc7+= 39.Bc7 Bh3 ½–½. Lohr – Markus, corr SOK–88–18, 1988.

12.Qb3 Nc5 13.Qc2=+ e4 14.Nd4= Qc7 (14...Bd7!?=) 15.bc6+= bc6 16.cd5 Qa5 17.0-0 cd5 18.Ncb5 Be7?? (better is 18...Qb6 19.Nd6 Qd6+/–) 19.Nc6+- (19...Qb6 20.Ne7 Kh8 21.Bd4+-) 1–0. Gedigk – Markus, corr SOK–88–18, 1988.

12.Qb3 Nc5 13.Qc2=+ Bg4 14.d4 Bf3 15.dc5 Be2 16.Ne2 Bc5 17.Be5 Bb4 18.Bc3 Bc3 19.Nc3 -/+.

12.Qb3 e4 13.Nd4 dc4 14.Bc4 =+.

12.d4 dc4 13.Bc4 e4 =.

12.d4 dc4 13.bc6 bc6 14.Bc4 Qa5 15.0-0 Bb4 (15...e4 16.Nd2 Re8 17.Qc2=) 16.Na2+= Bd6 17.Qc2 ed4 (17...e4 18.Nd2 Qh5 19.h3=) 18.Bd4 c5 19.Bc3 (19.Bf6 Nf6 20.Rd1 Qb6=) 19...Qc7= 20.h3 Bb7 21.Nd2 (21.Rd1 Bf3 22.gf3 Bh2 23.Kg2 Be5=) 21...Ne5 22.Be2 Nd5 (22...Ra8 23.f4 Ned7 24.Ra1=+) 23.Be5 Be5 24.Rc1 Rc8 25.Bg4 Ra8 26.Nc4 Bf6 27.Rb1 Bc6 28.Bf3 g6 29.e4 Nf4 30.Nb6 (30.Nc1 Ne6=) 30...Rb8=+ 31.Nd5 Rb1 32.Qb1 Nd5 (32...Bd5 33.ed5 Qe5 34.Qd1=+) 33.ed5 Bd7 34.Be2 (34.Nc1!?=+) 34...Bd4-/+ 35.Qf1 Qe5 36.Bf3 (36.Bc4 Qf4-/+) 36...Qf4 (36...Ba4 37.Nc1 Bb5 38.Ne2-+) 37.Qe2 (37.Qc1 Qb8=+) 37...h5 38.Kf1? (better 38.Qe4!? Qe4 39.Be4=+) 38...Qh2-+ 39.Ke1 (39.Qd3 Qh1 40.Ke2 Qg1-+) 39...Qg1 40.Kd2 Qb1 (40...Qa1 41.Qc4-+) 41.Qc4 Bb5 42.Qc2 Qf1 43.Nc3 Qf2 44.Kc1 (44.Ne2 Be3 45.Kc3-+) 44...Qe3 45.Kb2 Ba4 46.Qc1 Qc1 (46...Qc1 47.Kc1 Bc3-+) 0–1. Gerold,G – Neckel,O, corr DDR, 1988.

10.Bc3 Qa4 11.0-0 cb5 (11...Bd6 12.Bf6 Nf6 13.d4=) 12.Bf6 Nf6 13.Nc3 Qa5 14.Bb5 Bd7 15.Bd7 Nd7 16.Qb1 Qc7 17.Qb2 Be7 18.Rb1 b6 19.Nb5 Qb8? (better 19...Qc5+=) 20.Qg7+- Bf6 21.Qg3 (better 21.Qh6!?+-) 21...Qg3+= 22.hg3 Ke7 23.Nfd4 (23.Kf1 Ra8+=) 23...Bd4 24.Nd4 Ra8 (24...Rc8 25.Rb2+=) 25.Kf1 e5 26.Nc6 Kd6 27.Nb4 f5 28.Ke2 e4 (28...Nf6 29.d4 e4 30.Kd2+=) 29.Rh1+- Nf6 30.Rh6 Rf8 31.c3 Kc5 32.Nc2 Rf7 33.Nd4 b5 34.Ne6 Kc4 35.Nf4 (35.Nd8 Rf8+-) 35...Kb3+- 36.Ne6 b4?? (36...Kc4 37.Nd8 Rf8+-) 37.cb4 (37.Ng5 Rf8 38.cb4 Kb4 39.Nh7 Nh7 40.Rh7 Kc5+-) 37...Kb4 38.Ng5 (38.Nd8 Rf8+-) 38...Rf8 (38...Rg7!?+-) 39.Nh7+- Nh7 40.Rh7 Kc4 41.Rh6 Rf7 42.Rg6 d4 43.ed4 Kd4 44.f3 Re7 45.Kf2 (45.g4 ef3 46.Kf3 fg4 47.Rg4 Kd3+-) 45...Rd7 (45...Ra7 46.g4 Ra2 47.gf5 Rd2 48.Kg3+-) 46.Ra6 (46.g4 Ke5 47.Ke2 ef3 48.gf3 Re7+-) 46...Rd5 (46...Kd3 47.Re6+-) 47.Ra4 Kd3 48.Ra2 (48.g4 Kd2 49.Ra2 Kc3 50.gf5 Rf5 51.Ra3 Kb4+-) 48...Re5 (48...Rd4 49.Ra3 Kd2 50.Re3+-) 49.f4 (better 49.Ra3!? Kd2 50.Re3+-) 49...Rc5 50.g4! fg4 51.Kg3 Rc2 52.Rc2 Kc2 53.f5 Kd2 54.f6 e3 55.f7 e2 56.f8Q e1Q 57.Qf2 (57.Kg4?! Qe2 58.Kg3 Qe3 59.Kh4 Qe1 60.g3 Qh1 61.Kg4 Ke2+-) 57...Qf2 58.Kf2 Kd3 59.Kg3 Ke4 60.Kg4 1–0. Jorgensen,Christer – Stark,Ingvar, Vaxjo tt SWE, 1994.

10.Bc3 Qc7 11.0-0 Bd6 12.bc6 bc6 13.d3 0-0 14.Qd2 e5 15.Ba5 Qa7 16.Qc3 e4 17.Nfd2 ed3 18.cd3 c5 19.Nf3 Re8 20.Na3 d4 21.Qd2 de3 22.fe3 Ba6 23.Nc2 Nd5 24.Nh4 g6 25.Kh1 Ne5 26.e4 Nb4 The pressure on the backward pawn d3 grows 27.Bb4 cb4 28.Ne3 Be7 29.Nf3 Nf3 30.Rf3 (30.Bf3? Bg5 31.Re1 Rd8-+) 30...Bg5 31.Bd1 Bc8 32.Bb3 Attacking the backward pawn on f7 32...Be6 33.Be6 Qa1 34.Qd1 Qd1 35.Nd1 Re6 36.Rf1 (36.g4 b3 37.Kg2 Bf6-/+) 36...b3 (36...Rd6 37.Nb2-/+) 37.Nb2 Bf6 38.Rb1 Ra6 39.h3 Ra2 40.Nc4 b2 41.Kh2 Ra1 42.Rb2 Bb2 43.Nb2 Ra3 44.d4 Re3 45.e5 Kf8 46.Kg1 Rc3 0–1. Cottarelli,Franco (1890) – Morais,Gustavo JFS (2320), VWC3/pr17 ICCF, 2010.

10.Bc3 Qc7 11.0-0 Bd6 12.d4 0-0 13.Bb2 e5 14.de5 Ne5 15.Nbd2 Bg4 16.Qa1 (16.b6 Qb8=) 16...Nf3 (16...Ne4 17.Ne4 (worse 17.Ne5 Be2 18.Ne4 de4-/+) 17...de4 18.b6 (worse 18.Ne5 Be2 19.b6 Qb6-/+) 18...Qb6 19.Be5 Be5 20.Qe5 ef3 21.gf3=) 17.Bf3= Bf3 18.Nf3 Ne8 19.bc6 bc6 20.Qa4 (20.c4 dc4 21.Rc1 c5+=) 20...f5 21.c4 Nf6? (better 21...f4!?=) 22.Bf6+/- Rf6 23.cd5 cd5 24.Qa8 Qb8 25.Qd5 Kh8 26.Ra1 Rf8 (26...Qb2 27.Rd1 Qc2 28.Re1+/-) 27.g3 (27.Ng5 Bh2 28.Kh1 g6+-) 27...Be7 28.Nd4 (28.Ne5 g6+-) 28...Bf6+/- 29.Nc6 Qb7 30.Ra7 Qb1 31.Kg2 Qe4 32.Qe4 fe4 33.Ra4 Re8 34.Na5 h5 35.Nb7 h4 36.Nd6 Rb8 37.Ne4 hg3 38.hg3 Be7 39.Ra7 Bb4 40.Ng5 Re8 41.Kf3 Kg8 42.Rb7 Bc5 43.Ne4 Be7 44.Kf4 Rf8 45.Ke5 Ba3 46.Ke6 Bc1 47.g4 Re8 48.Kf5 Rf8 (48...Ba3+-) 49.Kg6 1-0. onur604 (2320) - Admiral75 (2330), Casual Rapid game, lichess.org, 2021.

10.Bc3 Qc7 11.Bb2 e5 =.

10.Bc3 Qc7 11.Nh4 Bd6 12.f4 0-0 13.0-0 (13.Nf3 e5 14.fe5 Ne5 15.Be5 Be5=) 13...Ne4 14.Bb2 f5 (14...cb5 15.Bb5 Qc5 16.Qg4=+) 15.d3 (15.Nf3 cb5 16.Bb5 b6=) 15...Nef6 16.Qd2 (16.Na3 Qb6 17.Bd4 c5=) 16...c5 (16...Qb6 17.Ba3 c5 18.Nc3=) 17.Na3 g5 18.b6 (18.fg5 Bh2 19.Kh1 Ng4=) 18...Qb8 (18...Qb6 19.Bf6 Nf6 20.fg5=) 19.Nf3 (19.fg5 Bh2 20.Kh1 Ng4 21.Bg4 fg4 22.Rf8 Nf8+=) 19...gf4 20.Nb5 Ng4 (20...Nb6!? 21.Nd6 Qd6 22.ef4 d4=) 21.Nd6 Qd6 22.ef4 Qb6 23.Rb1 Qc7 24.Ng5 Qd6 25.d4 c4 26.Bc3+= h6 27.Bb4 Qb6 28.Nf3 Rf7 29.Qe1 Kh7 30.Bd2 Qa7 31.Bf1 Re7 32.Qh4 Ngf6 33.Re1 Re8 34.Ng5 Kg6+= 35.Ne6 Qb6 36.Qg3 Ng4 37.h3 Re6= 38.hg4 Re1 39.gf5 Kf5 40.Be1 Nf6 41.Qh3+= Ng4 42.Qh5 Kf6 43.Qd5 Be6 44.Qe4 Bf5 45.Bh4 Kg6 46.Qe8 Kg7 47.Qe7 Kg6 48.Bf2 Qe6 49.Qb7 Nf2 50.Kf2 Qd6 51.c3 Qf4 52.Qf3 Qd2 53.Kg3 Bd3 54.Bd3 cd3 55.Qe4 Kf7 56.c4 Qc3 57.Kf2 ½–½. pcmvr (2225) – petrus (2270), net–chess.com, 2006.

9.Nc3 Nd6 (9...Bb4 10.Bd3 f5 11.Qb1=) 10.Bd3 Bd7 11.Qb1 Qa5 12.Nd4 (12.e4!?+=) 12...c5= 13.Nb3 (13.Nf3 Be7=) 13...Qc7 (13...Qb4!? 14.Na2 Qa3-/+) 14.Be2= Nb5?? (better 14...Be7=) 15.Nb5+- Qb6 16.N3d4! cd4 17.Bd4 Bc5 18.Bc5 (18.Bg7!? Rg8 19.Be5 Bb5 A) 20.Bb8?! Be2 21.Qb6 Bb6 22.Ke2 Kd7+- (22...Rg2?? 23.Bg3+-); B) 20.Bb5 Nc6 21.0-0+-) 18...Qc5+- 19.Nc3 (19.d4 Qb6+-) 19...Bc6+= 20.0-0 0-0 21.f4 (21.Nb5!?=) 21...d4 22.ed4 (better 22.Nd1!?=+) 22...Qd4-/+ 23.Kh1 (23.Rf2!? Qd2 24.Nb5-/+) 23...Qd2-+ 24.Qb2 (24.Qe1 Qc2 25.Qc1 Qc1 26.Rc1 Nd7-+) 24...Nd7 25.Rd1 (25.Qb4 Ra8 26.Rb1 h6-+) 25...Qe3 (better 25...Qf4 26.Bb5 Ne5-+) 26.Rd3?? (26.Rf1-+) 26...Qf4 (better 26...Qf2 27.Rf3 Bf3 28.gf3 Rc8-+) 27.Rg3 e5 (27...Ne5 28.Qa3-+) 28.Bf3 (28.Qa1 Nc5-+) 28...Qc4 (28...Ra8!? 29.Be2-+) 29.Be2 Qd4 30.Rd3 (30.Qc1 e4-+) 30...Qh4 (better 30...Qf2 31.Rf3 Bf3 32.gf3 Rc8-+) 31.Qc1 Nc5 Black intends e4 32.Rh3 (32.Rd1 Qf2 33.Bf1 Ra8-+) 32...Qf2 (better 32...Qh3! 33.Nd5 Bd5-+) 33.Bf3 (33.Qg1 Qg1 34.Kg1-+) 33...e4 34.Nd1 (34.Bg4 e3 35.Qg1-+) 34…Qf1 (34...Qe1) 0–1. yodamo – dalg100, ChessWorld.net, 2009. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c6 5.a4 a6 6.e3 ab5 7.ab5 Ra1 8.Ba1 Ne4)

9.c4 Qa5 10.Nc3 Nf6 (10...Bb4!?=) 11.Be2+= Bb4 12.0-0 Nbd7 13.Nd4 (13.Qc2 0-0+-) 13...c5+= 14.Nb3 Qc7 15.cd5 0-0? (better 15...ed5 16.Qc2 0-0+=) 16.de6+- fe6 17.Qc1 Bc3 (17...Rd8 18.f4+-) 18.Qc3 (18.dc3?! c4 19.Nd2 Nb6+-) 18...e5 (18...b6 19.d4+-) 19.d4 Ne4?? (19...ed4 20.Qc4 Kh8 21.ed4 Nb6 22.Qc5 Qd8+-) 20.Qc4 Kh8 21.de5 Ng5 22.f4 Nf7 23.e6 (23.Bd3 Nh6 24.Qe4 Nf5+-) 23...Nd6 24.Qc3 (24.ed7?! Nc4 25.dc8Q Qc8 26.Bc4 Qf5+-) 24...Nf5 (24...Nf6 25.Qc5 Qe7+-) 25.ed7 Bd7 (25...Qd7 26.e4 Nd4 27.Nd4 cd4 28.Qc5+-) 26.e4 Qb6 (26...Bb5 27.Bb5 Nd6 28.Bd3+-) 27.ef5 c4 28.Rf2 Qf6 29.Qf6 gf6 30.Bc4 Bf5 31.Re2 Kg7 32.Re7 Kh6 33.Rb7 Kh5 34.b6 1–0. DEFFM – amplitude, freechess.org, 2019.

9.c4 Qa5 10.Nc3 0-0 11.cd5 ed5 12.Be2 Bg4 13.0-0 Nbd7 14.h3 Bf3 15.Bf3 Ne4? (better 15...Ra8=) 16.bc6+- bc6 17.Ne4 de4 18.Be4 Ne5 (18...Nb8 19.Qg4 g6 20.Qf4+-) 19.Qh5 f5 20.Bf5 g6?? (20...Nf3 21.Qf3 Rf5+-) 21.Be6 (21.Be6 Rf7 22.Qe5 Qe5 23.Be5+-) 1-0. DEFFM – GuestXLQL, freechess.org, 2021.

9.c4 dc4 10.Bc4 cb5 11.Bb5 Bd7 12.Be2 0-0 (12...Bc6 13.0-0=) 13.Ne5 (13.0-0 Bc6=) 13...Ne4 (13...Qc7 14.0-0=) 14.Nc3 (14.0-0 Nc6=) 14...Nc3 15.Bc3 Bf6 (15...Bd6 16.0-0=) 16.Nd7 (16.0-0 Be5 17.Be5 Bc6+=) 16...Nd7= 17.d4 Qc7 18.Bb4 (18.Bb2 Rc8=) 18...Rd8+= 19.0-0 e5 20.d5 e4 21.Qb1 (21.d6 Qc6+=) 21...Qe5 (21...Be5 22.Rc1 Bh2 23.Kh1+=) 22.Rd1+= b6 23.Qc2 Qb2 (23...Nf8 24.Qb3+=) 24.Qb2+- Bb2 25.Be7 Ra8 26.Bg4 (26.d6 Ra5+-) 26...Ne5 (26...Nf6 27.d6 Ng4 28.d7+-) 27.Bf5+- Re8 (better 27...Ng6!? 28.Bd6 Ra4+-) 28.d6+- 1–0. Anonymous – Anonymous, lichess.org, 2020.

9.c4 Nbd7 10.Be2 0-0 11.0-0 dc4 12.bc6 bc6 13.Bc4 Qa5 14.Bc3 Qa7 (14...Qh5 15.d3=) 15.d4 Ba6 16.Qa4 Nb8 17.Ne5 c5 18.Ba6 Qa6 (18...Na6? 19.Nc6 Qb7 20.Ne7 Qe7 21.Qa6 cd4 22.Bd4+-) 19.Qa6 Na6 20.Nc6 Bd6 21.dc5 Bc5 22.Bf6 gf6 23.Rd1 Rc8 24.Rd8 Rd8 25.Nd8 Nb4 26.Nb7 Nd3 27.Nc5 (27.Kf1 Bb4=) 27...Nc5 28.Kf1 f5 29.Ke2 Kg7 30.Na3 Kg6 31.Nc2 Ne4 32.f3 Nd6 33.Kd3 f6 34.Kd4 h5 35.Kc5 Nf7 36.Nd4 e5 37.Nc6 Kg5 Black plans f4 38.Kd5 f4 39.e4 (better 39.ef4 ef4 40.Nd4+-) 39...Kg6? (39...Nh8 40.Ke6 Ng6 41.Nd8+=) 40.Ne7 (better 40.h4!?+-) 40...Kg7 41.Ke6 Nh6?? (better 41...Ng5!? 42.Kf5 Nh7+-) 42.h4 (better 42.Nf5 Kg6 43.Nh6+-) 42...Nf7 43.Nd5 Nh8 44.Nf6 Ng6 45.Kf5 (45.Nh5 Kh6 46.Nf6 Nh4 47.Ke5 Kg5+-) 45...Nh4 46.Ke5 Ng2 47.Nh5 Kh6 48.Nf6 Kg5 49.Nh7 Kh4 50.Kf5 Kg3 51.e5 Ne3 (better 51...Kf3 52.Ng5 Kg3 53.Ne4 Kf3+-) 52.Ke4 Nc4 53.e6 Nd6 54.Ke5 Ne8 55.Ng5 Nc7 56.e7 Ne8 57.Ke6 Kh4 58.Ne4 Kh3 59.Kf5 (59.Kf5 Nc7 60.Nf6+-) 1–0. Sicker,Rolf – Bouma,Jan, corr TKM/A007, 1999.

9.Bd3 Nbd7 10.0-0 Qa5 11.Bc3 Qc7 12.Ng5 e5 13.Bf5 h6 14.Nf3 e4 15.Nd4 c5 16.Ne2 0-0 17.d3 Bd6 18.de4 de4 (worse 18...Bh2 19.Kh1 Bd6 20.ed5+=; worse 18...Ne4 19.Ng3 Bg3 20.hg3=+) 19.Ng3 Bg3 20.fg3 Ne5 21.Nd2 Nfg4 (21...Bf5!? 22.Rf5 Re8=) 22.Be4 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Bd4 0-0 =. 9.Be2 0-0 10.0-0 cb5 11.Bb5 Qa5 12.Nc3 Ne4 13.Qb1 Nd6 14.Be2 Nc6 15.Nb5 Nb5 16.Bb5 Bd7 17.c4 dc4 18.Bc3 Qc7 19.Bc4 Rc8 20.Qb2 Bf8 (20...Nd8 21.Bd3 Qd6 22.Qb1=) 21.Rb1 Ne7 (21...Nb8 22.Bd3+=) 22.Ne5+/- (worse 22.Qb7 Qb7 23.Rb7 Bc6=+) 22...Be8 (22...Bc6 23.Nc6 bc6 24.d3+=) 23.Qb7 Qb7 24.Rb7 Ng6 (24...Nd5 25.Bd5 ed5 26.Nd7+/-) 25.d3 Ne5 26.Be5 Bc6 27.Rb1 Ra8 28.g3 h5 29.f4 Bc5 30.Kf2 Kh7 31.Rb2 f6 32.Bd4 Bf8? (better 32...Bd4 33.ed4 Re8+-) 33.Be6+- Ra1 (33...Rd8 34.f5+-) 34.Rb6 (34.Rc2!? Ra6 35.Bc8 Ba4+-) 34...Rc1 35.e4 Rc2 (35...Be7 36.h3+-) 36.Ke3 Be8 (36...Ba4+-) 37.Rb8 Rh2 (37...Ba3 38.Re8 Bb2 39.Bb2 Rb2 40.Bf5 g6 41.Re7 Kg8 42.Bg6 Rh2 43.Rf7+-) 38.Re8 Bb4 (38...Rg2 39.Rf8 Rg3 40.Kf2 Rg6+-) 39.Bf5 Kh6 (39...g6 40.Bf6 gf5 41.ef5 Re2 42.Ke2 Bf8 43.Rf8 h4 44.Rh8) 40.Rh8 1-0. wgr069 (2305) - siamoose (2380), Casual Blitz game, lichess.org, 2021.

9.Be2 0-0 10.0-0 c5 11.c4 b6 12.d4 Bb7 13.Nbd2 (13.dc5 Bc5 14.cd5 Nd5=) 13...dc4 (13...Nbd7 14.Ne5=) 14.Nc4 Qc7 15.Nfe5 (15.dc5 Qc5 16.Nce5 Nd5=) 15...Nbd7 (15...Rd8 16.Qc2=) 16.Bf3 (16.Nd7 Nd7 17.dc5 Bc5=) 16...Bd5 17.Qe2 (17.dc5 Qc5 18.Qb3 Ne5 19.Bd5 Qd5 (worse is 19...ed5 20.Ne5 Ra8 21.Bd4+/–) 20.Be5 Rc8 21.Bf6 Bf6-/+) 17...Rd8 (17...Ne5 18.Ne5 Bd6 19.Rc1=) 18.Rd1 (18.Nc6!? Re8 19.Rc1+=) 18...Ne5= 19.Ne5 Nd7 (19...cd4 20.Bd4 Bf3 21.Nf3=) 20.Nc6 (20.Bd5 Ne5 21.Be6 fe6 22.de5 Rd1 23.Qd1 Qa7+=) 20...Bc6+= 21.Bc6 Nb8 (21...cd4 22.Bd4 Bd6 23.Qh5+=) 22.Be4 Nd7 23.Bc6 Nf6 (23...Nb8 24.d5 Bd6+=) 24.e4 cd4 25.Rd4 Rd4 26.Bd4 e5 27.Be3 Bd6 28.Bg5 Nd7 29.Qg4 (29.h3 Nf8+=) 29...Nf8 30.h4 (30.Be3 Ne6=) 30...Be7 (30...Ne6 31.Bh6=) 31.Be3+= Kh8 (31...Ne6 32.h5+=) 32.h5 h6 (32...Ne6 33.h6 g6 34.Bd5+/–) 33.Qf5 Bf6 (33...Bc5!? 34.Bc5 bc5+=) 34.Bh6!+- gh6? (better is 34...Ne6 35.Be3 Nd4 36.Bd4 ed4+-) 35.Qf6 Kh7 36.Kh2 Ne6 37.g4 (37.Bd5!? Ng5+-) 37...Ng5 38.Kg3 (38.f4 ef4 39.e5 Kg8 40.Qf4 Qd8+-) 38...Qa7+/– 39.f3 (39.Qf5 Kg8 40.Qc8 (40.Qe5 Qa3 41.f3 Qf3 42.Kh2 Qf2 43.Kh1 Nf3 44.Qh8 Kh8 45.e5 Qf1) 40...Kg7 41.Qa6+/–) 39...Qa1= 40.Kf2 Qb2 41.Ke1 Qc1 42.Ke2 Qc2 ½–½. Lohmar,Hermann – Bartelt,Max Peter (1760), Dortmund Germany, Sparkassen Open–B, 2016.

9.Be2 0-0 10.0-0 c5 11.c4 Nbd7 12.d3 b6 13.Nbd2 Bb7 14.Nb3 (14.Bc3 Qc7=) 14...Qc7 15.h3 dc4 16.dc4 Ne4 (16...Ra8 17.Nbd2=) 17.Nbd2= Ndf6 18.Qc1 Nd2 19.Qd2 Ne4 20.Qc1 Bf6 (20...Bd6 21.Qc2+=) 21.Rd1 Ra8 (21...Ba1 22.Qa1 f6 23.Nd2=) 22.Bf6= Nf6 23.Qd2 Ne8 24.Qd7 Qd7 25.Rd7 Bc8 26.Rd8 Kf8 (26...Bb7 27.Ra8 Ba8 28.Ne5=) 27.Ne5+= f6 (27...Ke7 28.Nc6 Kf8 29.Rd1+/–) 28.Bf3 (28.Nd7!? Ke7 29.Nb6 Kd8 30.Na8+/–) 28...Bb7+= 29.Ra8 Ba8 30.Nd7 Ke7 31.Nb6 Bf3 32.gf3 Nd6 33.Kf1 Kd8 34.Ke2 Kc7 35.Na4 Nc4 36.Nc5 Kd6 37.Na4 Kc7 (37...h5 38.f4 Kd5 39.Kd3+=) 38.f4+/– Nd6 39.Nc5 e5 40.fe5 fe5 41.Ne6 Kb6 (41...Kd7 42.Nf8 Kc7 43.Nh7 Nb5 44.Kd3+/–) 42.Ng7 Kb5 43.Nh5 Kc6 (43...e4!?+/–) 44.Nf6+- h6 (44...e4 45.Nh7 Kd5 46.f3 ef3 47.Kf3+-) 45.Kf3 Nf7 46.Kg4 Kd6 47.Kh5 Ke6 48.Ng4 (48.Ng8 Ng5 49.h4 Nf3+-) 48...Ng5 (48...Nd6 49.Nh6 Kf6 50.h4+-) 49.h4 Nh3 (49...Ne4+-) 50.Kh6 Kf5 51.Kh5?? (51.Nh2 Kf6 52.f3+-) 51...e4+= 52.Nh6 Kf6 53.Kg4 Nf2 54.Kf4 Kg6 55.Ng4 Nh3 (55...Nd1 56.Kg3+=) 56.Ke4 (56.Kg3 Ng1+=) 56...Kh5+= 57.Ne5 Kh4 58.Nd3 Kg4 ½–½. Tagirov,Kajum K (1925) – Ermakov,Vladimir (2055), Memorial Dautov, 2008.

9.Be2 0-0 10.0-0 Bd7 11.bc6 Nc6 12.Ne5 Ne5 13.Be5 Bc6 14.Bf6 Bf6 15.d4 Qc7 16.Nd2 e5 17.c3 Ra8 18.Nb3 Ba4 19.Qc2? (better is 19.Qa1!?+=) 19...ed4-/+ 20.ed4 (20.Ra1!? de3 21.fe3-+) 20...Bd4!-+ 21.Bd3 (21.Nd4 Bc2 Pinning (21...Bc2 Deflection); 21.cd4 Qc2 Pinning (21...Qc2 Deflection)) 21...Qc3 22.Bh7 Kh8 23.Qc3 Bc3 24.Bc2 d4 25.Rc1 Bc6 26.h3 g6 27.Nc5 b5 28.Be4 Be4 29.Ne4 b4 30.Kf1?! (30.Rb1 d3 31.g4 f5 32.gf5 gf5-+) 30...Ra2 (30...b3 31.Ke2 b2 32.Rb1-+) 31.Nd6? (31.Rb1 d3-+) 31...Kg7 (31...b3 32.Rd1 b2 33.Nc4-+) 32.g4 (32.Rb1-+) 32...b3 33.Nc4 b2 (33...Ra4!? 34.Rb1 Rc4 35.Ke2-+) 34.Nb2 Rb2 0–1. Ruhle,Ernst Albrecht (1610) – Koch,Werner (1800), SUI–ch Seniors, 2004.

9.Be2 0-0 10.0-0 Nbd7 11.Nc3 =.

9.Be2 c5 10.c4 dc4 11.0-0 0-0 12.Bc4 b6 13.d4 cd4 (13...Bb7 14.Qe2=) 14.Bd4 Bb7 (14...Qc7 15.Qc2+=) 15.Nbd2 (15.Qe2 Nbd7=) 15...Nbd7= 16.Qa1 (16.Qc2 Qc7=) 16...Nc5 (16...Qc7 17.Rc1 Ra8 18.Qc3=) 17.Rd1 Qc7 (17...Qc8 18.Ne5=) 18.Be5+= Qc8 19.Qb2 (19.Be2 Rd8=) 19...Na4 (19...Rd8 20.Qc2=) 20.Qc2 Nc5 21.Ng5 g6 (21...Ncd7 22.Bd4=) 22.Bd4 (22.Ngf3 Rd8+=) 22...Nd5 (22...Rd8 23.Ngf3+=) 23.Ngf3 Bf6?? (better 23...Rd8+=) 24.Bd5+- Bd5 25.Bf6 Qd7 26.Qb1 Qb7 27.Qb4 Bf3 (27...Ra8 28.Qh4 Nd7 29.Bc3+-) 28.Nf3 Ne4 (28...Qe4 29.Qb2 Qa4+-) 29.Qf8! (29.Qf8 Kf8 30.Rd8) 1–0. GuestDHDM – GuestJHJG, freechess.org, 2018.

9.Be2 Bd7 10.Nc3 0-0 11.0-0 Qa5 12.Qb1 Rc8 13.bc6 bc6 14.Qb7 Qd8 15.Rb1 c5 16.Ne5 Be8 17.h3 (17.Qb6 Nc6 18.Qd8 Rd8 19.Nc6 Bc6=) 17...c4 18.Qb6 Qb6 (18...Nc6 19.Qd8 Rd8 20.Nc6 Bc6 21.d3 cd3 22.Bd3=) 19.Rb6=+ Nc6 20.Nc6 Bc6 21.Ra6 h6 (21...Kf8 22.d3 cd3 23.Bd3=) 22.f3 (22.d3 cd3 23.Bd3 Ne4=) 22...Nd7 23.Kf2 Nc5 24.Ra7 Bf6 25.Nd1 Ba4 26.Bf6 gf6 27.e4 de4 28.Ne3 c3 29.dc3 ef3 30.gf3 1–0. forsetinn (2475) – boki (2230), gameknot.com, 2016.

9.Be2 Bd7 10.bc6 bc6 11.0-0 0-0 12.c4 Ne4 13.d3 Nf6 (13...Nc5 14.d4 Ne4 15.Qa4=) 14.Nbd2 Na6 (14...c5 15.cd5 ed5 16.h3=) 15.Ne5 (15.Qa4 Nb4+=) 15...Nc5 (15...Qa5 16.f4+=) 16.Qc2 Qc7 (16...Na6 17.Qc1+=) 17.Rc1 (17.Nef3 dc4 18.Qc4 Nb7+=) 17...Qa5? (17...Ra8 18.Bc3+=) 18.Bc3 (18.Bd4 Rc8 19.Ra1+/–) 18...Qa4 19.Qb2 Ra8 20.d4 White threatens to win material: d4xc5 20...Na6?? (better is 20...Nce4 would save the game 21.c5 Be8+=) 21.Ra1+- Rb8 (21...Qa1 the only chance to get some counterplay 22.Qa1 dc4 23.Bc4 Bc8+-) 22.Qb8!! a small price for the final victory (22.Qb8 Nb8 23.Ra4+-) 1–0. Jakobi,Axel – Stoecker,Ronald (1750), Schleswig Holstein–ch cand, 2002.

9.Be2 Bd7 10.Ne5 cb5 11.Nd7 Qd7 12.Nc3 b4 13.Nb5 0-0 14.0-0 Nc6 15.f4 Rc8 16.Rf3 Ne4 17.d3 Nc3 (17...Nc5 18.Rg3 g6 19.Qf1-/+) 18.Nc3=+ bc3 19.Bc3 Nb4 20.Bb4 Bb4 21.Qb1 Bc3 22.d4 Qc6 23.Qb3 Bd2 24.Bd3 White intends f5 24...b5 25.f5 b4 26.fe6 fe6 (26...Qe6?? 27.Bf5 Be3 28.Qe3 Qe3 29.Re3+-) 27.Bh7 Kh7 28.Qd3 Kg8 29.Qd2 Qc2 30.Qb4 Qc1 31.Kf2 Qc2 32.Kg1 Qc1 33.Kf2 Qc2 34.Kg3 Qg6 35.Kh3 Qh5 36.Kg3 Qg5 37.Kh3 Qh5 38.Kg3 Qg5 39.Kh3 Qh5 40.Kg3 Qg5 41.Kh3 Qh5 42.Kg3 Qg5 43.Kh3 ½-½. DEFFM – didiboy, freechess.org, 2021.

9.Ne5 Qc7 10.f4 Nbd7 11.bc6 bc6 12.c4 0-0 13.Be2 Bd6 14.Nd7 Nd7 15.Qc2 Bb7 16.0-0 f6 17.Bd3 f5 18.cd5 cd5 19.Qc7 Bc7 20.Bd4 Bd6 21.Nc3 Nc5 22.Rb1 Rf7 (22...Nd3 23.Rb7 Rf7 24.Rb6=) 23.Bf1 Ne4 24.Rb6 Bf8 25.Ne4 de4 26.Re6 Bd5 (26...Rc7!?+/–) 27.Re5+- Bb3 28.g4! fg4 29.Re4 1–0. Stadchenko,Inna – Oeden,Mehmet Hasim, ICCF FM/1600, 2012. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.e3 Be7)

10.Qc2 Nbd7 11.Bb2 (11.Bd4 c5 12.Bc3 Bd6=+) 11...Nb6 (11...Bd6 12.cd5 cd5 13.Be2=+) 12.cd5 (12.c5 Nbd7 13.d4 cb5 14.Bb5 b6=) 12...Qd5 (12...cd5 13.Bd3=) 13.Nc3 (13.bc6 bc6 14.Nc3 Qd6=) 13...Qc5 (13...Qd6 14.bc6 Qc6 15.Ne5=) 14.bc6 bc6 (14...Qc6 15.Ne5 Qd6 16.d4=) 15.d4+= Qb4 16.Bd3 Nc4 17.Bc4 Qc4 18.Ne5 Qa6 19.Na4 (19.e4 c5 20.dc5 Bc5=) 19...Bb4 (19...Qa5 20.Nc3 Bb7 21.0-0=) 20.Kd1 (20.Bc3 Bd6+=) 20...Bb7 (20...Ne4 21.Nc3 Nc3 22.Bc3=) 21.Nd3 (21.Nc5 Bc5 22.Qc5 Ne4=) 21...Nd5 (21...Bd6 22.Nac5 Qb6 23.Qb3 (< 23.Nb7 Qb7 24.Ke1 Rb8=+) 23...Qb3 24.Nb3=+) 22.e4+= Nb6 23.Nac5 Bc5 24.Nc5 Qc4?? 25.Nb7+- Qc2 26.Kc2 Nc4 27.Bc3 Rc8 28.Ra1 h6 29.Ra4 Nb6 30.Ra6 Nc4 31.Kd3 Nb2 32.Bb2 (32…Rb8 33.Ra7+-) 1–0. Waibel,Ulrich – Fulsom,Jack, compuserve, 1996.

10.Nc3 cb5 11.cb5 Qa5 (11...Nbd7 12.Be2=+) 12.Be2= Ne4 (12...Nbd7 13.0-0=) 13.0-0+= Bb4 (13...Nd7 14.Qc2 Nd6 15.Bb2+-) 14.Qc2 (14.Ne4 de4 15.Ng5 Bd7 16.Ne4 f5+-) 14...Nc3 (14...f5 15.Rb1 Be7 16.d3+-) 15.dc3+- Be7 16.c4 dc4 17.Bc4 Bd7 (17...Nd7 18.Bd3 g6 19.Bd4+-) 18.Bc3 (18.Qe4 b6+- (18...Bb5?? 19.Qe5 Bf6 20.Qb5 Qb5 21.Bb5+-)) 18...Qc7 19.Be5 Bd6 (19...Qc5 20.Bd4 Qc7 21.Rc1+-) 20.Ng5+- g6 21.Bd6 Qd6 22.Ne4 Qc7 (22...Qb4 23.Rb1 Qe7 24.Rd1+-) 23.Qc3 e5?? (better 23...Rc8 24.Rc1 h5+-) 24.Bf7! Rf7 (24...Rf7 25.Qc7 Discovered attack; 24...Kf7 25.Ng5 Double attack (25.Qc7 Discovered attack)) 25.Qc7 Bb5 1–0. DEFFM – GuestBKPX, freechess.org, 2017.

10.Nc3 dc4 11.Bc4 Bb4 12.0-0 cb5 13.Nb5 Bd7 14.Qb1 (14.Qc2 Nc6+-) 14...Bb5 (14...Qa5 15.Qd3 Rd8 16.Bd4+=) 15.Bb5+- Bd2?? (better 15...Qa5 16.Bd3 Nbd7+-) 16.Rd1+- Qa5 17.Rd2 Ne4 (17...Nc6+-) 18.Ra2 Nc3 19.Ra5 Nb1 20.Ra7 (20.Ra8!? h5+-) 20...Rc8 (20...Nc6 21.Rb7 Na5 22.Ra7+-) 21.Rb7 Rc1 (21...Na3 22.Bd3 Nc6 23.Bc3+-) 22.Bf1 (22.Bf1 Nc6 23.Bb2+-) 1–0. DEFFM – MALAYSIANS, freechess.org, 2019.

10.bc6 Nc6 11.Ne5 Ne5 12.Be5 dc4 13.Bc4 b5 (13...Nd7 14.Bc3=) 14.Be2 (14.Bb5 Qd5 15.Bf6 Bf6=+) 14...Bb7 15.Qb3 (15.Bb5 Qd5 16.Bf6 Bf6=+) 15...b4 16.d4 (16.0-0 Qd5 17.Qd5 Bd5=+) 16...Bd5 (16...Bg2 17.Rg1 Bd5 18.Qb2-/+) 17.Bc4 Bc4 (17...Bg2 18.Rg1 Qa8 19.Nd2-/+) 18.Qc4=+ Qc8 19.Qd3 (19.Qc8 Rc8 20.Ke2 Rc2 21.Kf3 Nd7-/+) 19...Qc1-/+ 20.Qd1 Qc4 (20...Rc8!?-/+) 21.Nd2=+ Qd3 22.Bf6 Bf6 23.Qe2 (23.Qb3 Qb3 24.Nb3 Ra8=) 23...Qc2 24.0-0 (24.Qd1 Qb2=+) 24...Rc8 (24...e5 25.d5 e4 26.Qd1=+) 25.Qa6=+ Be7 26.h3 Rc3 27.Qa8 Bf8 28.Nf3 (28.Ne4 Ra3 29.Qb7 b3=+) 28...Rc8 (28...b3 29.Qb7-/+) 29.Qb7=+ Rc7 30.Qa8 (30.Qb8 Qc6=+) 30…Rc8 ½-½. Kovacevic,Radmila (2075) - Maksimovic,S (2110), TCh-SRB Premier w, 2020.

10.Be2 dc4 11.Bc4 cb5 12.Bb5 Qa5 (12...Bd7 13.Be2=) 13.Qa4= Qa4 (13...b6 14.Nc3=) 14.Ba4 Bd7 ½–½. Haisma,Henk (1850) – Lopez Valcarcel,Juan (1795), Gibraltar England, Amateur–B, 2016.

11.bc6 bc6 12.cd5 (12.Be2 Qa5 13.0-0 Ba6 14.cd5 cd5 15.Ba6 Qa6 16.Qe2 Ra8 17.Rb1; 12.Bb2 Ba6 13.cd5 Bf1 14.Rf1 cd5 15.Qc2 Qc7 16.Ke2 Rc8 17.Rc1; 12.Qc2 Qa5 13.Qa4 Qb6 14.Be2 Nc5 15.Qc2 Ba6 16.Ne5 Bd6 17.f4) 12...cd5 13.Be2 Qa5 14.0-0 (14.Qa4 Qa4 15.Na4 Bb7 16.0-0 Ra8 17.Rb1) 14...Ba6 15.Nd4 (15.Ba6 Qa6 16.Qe2 Ra8 17.Rb1) 15...Rc8 16.Nb3 (16.f4 h6 17.Bb2) 16...Qb6 17.Ba6 Qa6 18.f4 Nc5 19.Nd4 Nce4 20.Ne4 Ne4 21.Nf3 Bf6 (21...Bb4!?-/+) 22.Bf6= Nf6 23.Qb3 Qc4 24.Qb7 Qc7 25.Rb1 Qb7 26.Rb7 Ne4 27.Kf1 Nd6 28.Rd7 Ne8 29.Ng5 Rc7 30.Rd8 Re7 31.d3 (31.e4 de4 32.Ne4 Kf8+=) 31...h6= 32.Nf3 Kf8 33.Ne5 Rc7 34.Kf2 Ke7 35.Rb8 Rc1 36.Rb7 Rc7 37.Nc6 Kd6 38.Rc7 Kc7 39.Ne5 Nd6 40.g4 f6 41.Ng6 Kd8 42.Kf3 Ke8 ½–½. Faber – Muehlberg, Sachsen–Anhalt, 1997.

11.cd5 cd5 12.Be2 Bd6 13.0-0 Nc5 14.Na4 Na4 15.Qa4 Ne4 16.Bd4 Bd7 17.Rc1.

11.cd5 ed5 12.Qc2 g6 13.Be2 Nc5 14.Nd4 Qc7 15.0-0 Bd7 16.Bb2 Ra8 17.f4.

11.cd5 ed5 12.bc6 bc6 13.Be2 Qb6 14.0-0 Ba6 15.Qc2 Be2 16.Ne2 Rb8 17.Ned4.

11.cd5 ed5 12.Be2 c5 13.0-0 b6 14.Bb2 Bb7 15.Qc2 Qc7 16.Ra1 h6 17.Ra7 Rb8 18.Qa4 Qd6 19.d3 Nh7 20.Nh4 Bh4 (20...g6!? 21.Nf3 Nhf8+=) 21.Qh4+/- Nhf8 22.Qg3 Qg3 23.hg3 Ne6 (23...d4!? 24.ed4 cd4+/-) 24.Nd5!+- Bd5 25.Rd7 Bb3 26.Be5 Re8 27.Bd6 Ba4 28.Rb7 Bb5 29.Rb6 Ba4 30.f4 f5? (better 30...Rc8+-) 31.Bh5 Rc8 32.Bg6 1-0. DEFFM – Lezzzze, freechess.org, 2021.

11.cd5 ed5 12.Be2 Nc5 13.0-0 Qa5 14.Bb2 Nfe4 15.bc6 bc6 16.Ne4 Ne4 17.Qc2.

11.Be2 Nb6 12.cd5 cd5 13.0-0 Bd7 14.Ne5 Bd6 15.f4 Qc7 16.Qb3 Rc8 17.Bb2.

11.Be2 dc4 12.bc6 (12.Bc4 Nb6 13.Be2 c5 14.0-0 Qc7 15.Qc2 Bd7 16.Na4 Na4 17.Qa4) 12...bc6 13.Bc4 Nb6 14.Be2 Nbd5 15.0-0 Bd7 16.Ne5 Qc7 17.Nd7.

11.Be2 Nc5 12.0-0 (12.bc6 bc6 13.0-0 Bb7 14.Qc2 Qa5 15.Bb2 Qb4 16.Rb1 dc4 17.Ne5; 12.Qc2 Bd6 13.0-0 Bd7 14.bc6 bc6 15.d4 Nce4 16.Bd3 Qe7 17.Rb1) 12...Qc7 13.Qc2 Bd7 14.bc6 bc6 15.d4 Na6 16.Ne5 Bd6 17.Rb1.

11.Be2 Qc7 12.0-0 (12.cd5 cd5 13.0-0 Bd6 14.Qb1 Qa5 15.d4 h6 16.Qb3 Qa3 17.Qc2) 12...Nb6 13.cd5 cd5 14.Na4 Bd7 15.Nb6 Qb6 16.Ne5 Rc8 17.Bd3.

11.Be2 e5 12.bc6 bc6 13.cd5 cd5 14.0-0 Bb7 15.d4 e4 16.Ne5 Ne8 (better 16...Qb6=) 17.Qb3+- Nc7 1–0. GuestGKXC – wiuqzeiwqx, freechess.org, 2018.

11.Be2 g6 12.0-0 Nb6 13.cd5 cd5 14.Qb3 Bd7 15.Rc1 Qb8 16.Bb2 Rc8 17.Ba3.

9.c4 Bg7 10.Be2 (10.Be5 Nbd7=) 10...0-0 11.0-0 Bd7 (11...dc4 12.bc6 b5 13.d3 cd3 14.Qd3 Qd3 15.Bd3 Nc6 16.Bb5=) 12.Qa4 (12.cd5 ed5 13.bc6 Nc6+=) 12...Ne4 (12...dc4!? 13.Bc4 cb5 14.Bb5 Bb5 15.Qb5 Qd7=) 13.Bg7+/– Kg7 14.d3 Nd6 15.Nc3 Qb6 16.Ne5 (16.Rb1 dc4 17.dc4 Rd8+=) 16...Nf5 (16...f6 17.bc6 Bc6 18.Qa3+=) 17.d4 f6 (17...c5 18.Nd3 cd4 19.c5+/–) 18.c5 (18.Nd7 Nd7 19.c5 Qc7+/–) 18...Qd8 19.Nd7 Nd7? (better is 19...Qd7!? 20.Ra1 e5+/–) 20.bc6+- bc6 21.Qc6 Re8 22.Ra1 Nb8 23.Qb5 Re7 (23...Nd7 24.c6 Nf8 25.c7+-) 24.Ra8 Re8 25.Qb7 Kg8 (25...Kh6 26.Bd3 Qc8 27.Qa7+-) 26.Bb5 Rf8 (26...Qc8 27.Qc8 Rc8+-) 27.Ra7 (27...Nd7 28.Bd7+-) 1–0. Zwerenz – Bosma, GER, 1991.

9.Be2 cb5 10.Be5 Nc6=.

9.Be2 Bg7 10.0-0 0-0 11.Na3 Qa5 12.Bb2 Nbd7 13.Qa1 c5 14.Ne5 (14.d3!?=) 14...Qd2=+ 15.Nd7 Bd7 16.Bd3 Qa5 17.Bc3 (better 17.Bf6!? Bf6 18.Qf6 Qa3 19.Qe7=+) 17...Qd8-/+ 18.b6 c4 19.Be2 Qe7 20.Rb1 (20.Qb2 Re8-/+) 20...Ne8 (20...Ra8 21.Bb4 Qd8 22.Bc3-/+) 21.Nb5 (21.Rd1=+) 21...Qc5 (better 21...Bb5 22.Rb5 Bc3 23.Qc3 Nd6-/+) 22.Bb4?? (better 22.Nd4=) 22...Qb5-+ (22...Ba1 23.Bc5 Bg7 24.Bf3+=) 23.Bf8 (23.c3 Qc6 24.Bf8 Bf8 25.Qa5-+) 23...Ba1 24.Rb5 Bb5 (24...Bb5 25.Bb4 Nf6-+; 24...Kf8?! 25.Ra5 Bf6 26.Ra8-+) 0–1. tsodikovich (1785) – mariogoveia (1725), gameknot.com, 2016.

8.Nf3 Nbd7 9.d4 Ne4 (9...Qb6 10.Nbd2=) 10.Bd3 Qb4 11.Nbd2 Nd2 (11...Bd6 12.0-0=) 12.Nd2 Nf6 (12...Bd6 13.0-0=) 13.0-0+= Bd6 (13...Be7 14.Qe2+=) 14.c4+- Qa5 (14...Be7 15.Qc2+-) 15.c5 (15.c5 Be7 16.Qc2+-) 1–0. DEFFM – GuestHDFF, freechess.org, 2018.

9.c4 dc4= 10.Bc4 (10.Qa4 Be7=) 10...Qc5 (10...Qb4 11.Qc2 Bb5 12.Bb5 Qb5 13.Bf6 gf6 14.Nc3=+) 11.Be2 (better 11.Qb3!?+=) 11...Bb5=+ 12.Be5 (12.Bb5 Qb5 13.Bf6 gf6=+) 12...Be2-/+ 13.Qe2 (13.Ke2 Nbd7 14.Qa4 b5 15.Qa8 Ke7-/+) 13...Qc1 14.Qd1 Qd1 15.Kd1 Ne4 (better 15...Ng4 16.Bg3 Bd6-/+) 16.Bc7? (better 16.Ke2 Nd6 17.Nc3=+) 16...Nf2-+ 17.Ke2 Nh1 18.Bb8 Be7 (18...Bb4 19.Be5 Ke7 20.Bc3 Bc3 21.dc3-+) 19.Kf1 (19.e4 f6-+) 19...0-0 (19...Kd7 20.Be5 f6 21.Bc3-+) 20.Be5 (20.Bf4 Ra8 21.Nc3 f6-+) 20...Rc8 21.Nc3 (21.Bc3 Ra8-+) 21...Ba3 (better 21...f6!? 22.Bd4-+) 22.Kg1 b5 (22...f6 23.Bd4 e5 24.Bb6-+) 23.Kh1 b4 24.Ne2 b3 0–1. GuestGSDM – KingArees, freechess.org, 2018.

9.Be5 Qb6+=.

9.Be5 Qc5 10.Nc3 b6 (10...Bd6 11.Bd4 Qb4 12.Ne5+=) 11.Bd4 (11.Na4 Qa3 12.Nb6 cb6 13.Bb8 Bd6 14.Bd6 Qd6+-) 11...Qd6 12.Be2 e5?? (better 12...Ne4+-) 13.Be5+- (13.Ne5?! Be7+-) 13...Qe6 (13...Qc5 14.Qa1 Be7 15.Qa7+-) 14.0-0 (14.Bc7!? Bd6 15.Ng5 Qe7 16.Bb6 Bh2+-) 14...Bd6 15.Bf6 gf6 (15...Qf6 16.Nd5 Qg6+-) 16.Nd4 Qe5 (16...Qe7 17.f4 Bc5 18.Nd5+-) 17.f4 Qe7 18.Nd5 Qf8 (18...Qd8 19.Bg4+-) 19.Nf6 Kd8 20.Qa1 (better 20.Nd7 Kd7 21.Bg4 Ke8 22.Qf3+-) 20...Qe7 (20...Qg7+-) 21.Nd7 Nd7 (21...Qd7 22.Nc6! Nc6 23.Qh8 Qe8 24.Qe8 Ke8 25.bc6 Ke7+-) 22.Qa8 (22.Qa8 Nb8 23.Qb8 Kd7 24.Bg4 Qe6 25.Be6 fe6 26.Qh8 c6 27.bc6 Ke7 28.Qg7 Ke8 29.Qd7 Kf8 30.Ne6 Kg8 31.Qg7) 1–0. DEFFM – Moohoohaahaahaaaa, freechess.org, 2019.

9.c4 0-0 10.Nc3 dc4 11.Bc4 Nd5 12.Ne4 Ne3?? (better 12...Qa3+=) 13.fe3+- (13.Nd6?! Nd1 14.Nc8 Rc8 15.Kd1 Nd7+-; worse 13.de3 Qb4 14.Nfd2 f5+-) 13...Qb4 14.Qc2 c6 (14...Bd7 15.0-0 Bb5 16.Nfg5+-) 15.0-0 cb5 (15...h6 16.Ne5 Qa5 17.Qb2+-) 16.Bb3 Nc6 (16...f5 17.Nd4 Nc6 18.Nf5 h6+-) 17.Bc3 (17.Bc3 Qa3 18.Ra1+-) 1–0. Ddgs – Zizwe, internet, 2019.

9.Be2 0-0 10.0-0 Ne4 11.Be5 Qd8 12.d3 Nc5 (12...Nd6 13.Nc3=) 13.b6+= Bd6 14.bc7 Qc7 (14...Bc7 15.Nc3+=) 15.Bd6 Qd6 16.c4 e5 (16...Nc6 17.Nc3+=) 17.cd5+- Qd5 18.Nc3 Qd6 19.Nb5 Qe6 (19...Qe7 20.d4 ed4 21.ed4+=) 20.Qc2 (20.d4 ed4 21.ed4 Ne4+-) 20...Nca6 21.d4 e4 (21...ed4!? 22.Nbd4 Qe7+-) 22.Ne5 Nd7? (better 22...Nc6 23.Qe4 Ne5 24.de5 Nc5+-) 23.Nf7! Nb6 (23...Qf7 24.Nd6 Double attack (24.Nd6 Decoy); 23...Rf7 24.Qc8 Deflection (24.Qc8 Overloading); 23...Kf7 24.Bc4 Combination) 24.Ne5 Kh8 (24...Qe7 25.Qe4 Nb4 26.f4+-) 25.Qe4 (25.Na7 Nb8+-) 25...g6 (25...Nb4 26.Rc1+-) 26.Qh4 (26.Na7 Nb4+-) 26...Nd7 (26...Nb4 27.e4+-) 27.Bc4 Qf6 28.Qf6 Rf6 (28...Nf6 29.Rb1 Bf5+-) 29.Nf7 Kg7 30.Nbd6 (30.Nfd6!? Rf8 31.Na7 b5 32.Bb5 Nc7+-) 30...Nb6 31.Ne8 Kf8 32.Nf6 Nc4 33.Ne5 Ne5 34.de5 1–0. GuestSBVJ – GuestPCLL, freechess.org, 2020.

8.c4 e5 9.Nf3 e4 10.Nd4 0-0 11.Be2 dc4 12.Bc4 Nbd7 13.0-0 Bh2?? (13...Nb6 14.d3 Nc4 15.dc4 Bh2 16.Kh2 Ng4 17.Kg3 Qd6 18.f4 Ne3-+) 14.Kh2+/– Ne5 15.Bb3 Nfg4 16.Kg1 Qh4 (17.Qg4 Ng4-+) 0–1. Hasler,Ueli – Pinto,Luisa (2020), CiF, 2005.

8.Nf3 Bd7 9.Be2 0-0 10.0-0 h6 11.d4 (11.Be5 Be5 12.Ne5 c6=) 11...Qe8 (11...c6!?=+) 12.Nc3+= Bb4 (12...c6 13.Qb1=) 13.Ne5 Bc3 (better 13...Bc8!?+=) 14.Bc3+- Bb5 15.Bb4 Be2 16.Qe2 Nc6 17.Bf8 Kf8 18.Rb1 Ne5 (18...b6!?+-) 19.de5+- b6?? (better 19...Nd7 20.Rb7 Qa8 21.Rc7 Ne5+-) 20.ef6 1–0. DEFFM – GuestXHNX, freechess.org, 2019.

8.Nf3 Nbd7 (--> 7.Ba1 Nbd7 8.Nf3 Bd6).

8.Nf3 h6 9.c4 (9.Be5 Be5 10.Ne5 Nbd7=) 9...dc4 (9...0-0 10.Be5=) 10.Bc4 0-0 (10...Nbd7 11.0-0=) 11.0-0 (11.Be5 Be5 12.Ne5 Nbd7 13.Nd7 Bd7=) 11...c6 (11...Nbd7 12.d3=) 12.Nc3 Bb4 (12...e5 13.d4 e4 14.Ne5+=) 13.Qb3 Bc3 (13...Qe7 14.Ne2+=) 14.Bc3+- cb5 (14...Ne4 15.Bd4+-) 15.Bb5 Nc6 (15...Nd5 16.Be5 Bd7 17.Bd7 Nd7 18.Bd6+-) 16.Qb2 Qe7 (16...Qb6 17.Rb1 Na7 18.Bf6 Qb5 19.Bg7 Qb2 20.Bb2+- (20.Rb2? Kg7 21.Rb6 Rd8-+)) 17.Ra1 Qc5? (better 17...Bd7+-) 18.Bc6 bc6 (18...Qc6 19.Bf6 gf6 20.Qf6+-) 19.Bf6 gf6 20.Qf6 Qh5 21.Ra4 (21.d4 Bb7+-) 21...Qg6 (21...Qf5 22.Qf5 ef5 23.Ne5+-) 22.Qb2 (better 22.Qg6 fg6 23.Ne5+-) 22...Bd7?? (better 22...f6+-) 23.Ne5 Qf6 24.Rf4 Qe7 (24...Qh8 25.Rg4 Kh7 26.Qb1 f5 27.Nd7 Rf7+-) 25.Rg4 Kh7 26.Nd7 Rg8 (26...f6 27.Nf8 Qf8 28.Qb7 Kh8 29.Ra4+-) 27.Nf6 (better 27.Rg8 Kg8 28.Nf6 Kf8 29.Qb8 Kg7 30.Qg3 Kf6 31.Qh4 Kg6 32.Qe7 Kg7+-) 27...Kh8 (27...Qf6 28.Qf6 Rg4 29.Qf7 Rg7 30.Qe6 Rg6 31.Qd7 Kh8+-) 28.Rg8 1–0. DEFFM – GuestJHVF, freechess.org, 2018.

9.Nf3 b6 10.Be2 Bb7 11.0-0 Nbd7 (11...dc4 12.Qc2=+) 12.d4= dc4 13.Nbd2 c6 14.Nc4 Bc7 15.bc6 Bc6 16.Nce5 Ne5 17.Ne5 Bb7 18.Bf3 Bf3 19.Qf3 Be5 (19...Qd5 20.Qe2=) 20.de5 Nd5 21.Bd4 b5 (21...Qc7 22.e4 Nb4 23.Qb3+=) 22.Rb1 (22.e4 Ne7 23.Bc5 Re8+=) 22...Qd7 23.g3 Rb8 Black intends b4 24.Qe2 The isolani on b5 becomes a target 24...h6 25.Qc2 b4 26.Qc4 Qb5 27.Qb3 h5 (27...Ne7 28.Rc1=+) 28.h4 (28.Rb2 Ne7=) 28...Qe2=+ 29.Rc1 Ra8 30.Qc2 Qc2 31.Rc2 b3 32.Rb2 Rb8 33.Kf1 Ne7 (33...Kh7!?=+) 34.Ke2+= Nc6 35.Kd3 Rb5 (35...Rd8 36.Kc4+=) 36.f4 Kh7 37.Kc3 (better 37.Kc4!? Rb8 38.Bc3+/-) 37...Kg6 38.e4 Na5 39.Be3 Rb7 40.Bd2 Rc7 41.Kd3 Nc4 (better 41...Rd7!? 42.Kc3 Rb7=) 42.Rb3+/- Rd7 43.Kc4 Rd2 44.Rd3 Rg2 45.Kd4 f6 46.ef6 gf6 47.Rf3 Rg1 48.Ke3 Rg2 49.Kd3 Ra2 50.Kd4 Ra3?? (better 50...Ra4 51.Ke3 Kg7+=) 51.Rb3 (better 51.Ra3 Kf7 52.Ra7 Kg6 53.Re7 e5 54.fe5 fe5 55.Kd5 Kf6 56.Re5 Kg6 57.Ke6 Kg7 58.Rg5 Kh7 59.Kf7 Kh6 60.e5 Kh7 61.Rh5) 51...Ra4 (better 51...Rb3 52.e5 Kf5-+) 52.Ke3+/- e5 53.Rd3 ef4 54.Kf4 Ra1 55.Rd6 Rf1 56.Ke3 Rg1 (56...Re1 57.Kf3+/-) 57.Kf3 (57.Kf2 Ra1+-) 57...Rf1 (57...Kf7!?+/-) 58.Ke2+- Rg1 59.Kf2 Rh1 (59...Ra1 60.e5 Ra2 61.Kf3 Ra3 62.Kg2 Ra2 63.Kf1 Ra1 64.Ke2 Ra2 65.Ke3 Ra3 66.Ke4 Ra4 67.Kd3 Ra3 68.Kd4 Ra4 69.Kc3 Ra3 70.Kc4+/-) 60.Rd2 (better 60.e5!? Kf5 61.ef6+-) 60...Rb1 61.Re2 Rb3 62.Re3 Rd3?? (better 62...Rb1+/-) 63.Rd3+- (63.Rd3 Kf7 64.Rd7 Kg6 65.Kf3+-) 1-0. BeepBeepImAJeep (2755) - Rish1756 (2640), lichess.org, 2020.

9.Nf3 b6 10.Be2 Ne4 11.0-0= Ng5 12.Nc3 (12.cd5!? Nf3 13.Bf3 ed5 14.Nc3+=) 12...Nf3-/+ 13.Bf3 Qh4 (worse 13...dc4 14.Qa4=) 14.g3 Qh6?? (better 14...Qc4 15.Qc2 Be7=+) 15.cd5+/- ed5 16.Nd5 Nd7 17.Qc2 Nc5 18.Bg2 Ne6 (18...Bh3 19.Bh3 Qh3 20.d4+/-) 19.d4 Ng5 20.h4 (20.e4 Nh3 21.Kh1 f6+-) 20...Nh3+/- 21.Kh2?? (21.Kh1 Bd7+/-) 21...g5?? (better 21...Qh4! 22.Rh1 Qh5 23.Bh3 Bh3=+) 22.Bh3+- (22.Nc7?! gh4 23.f4 hg3 24.Kg3 Bd7=) 22...Bh3 23.Kh3 gh4?? (better 23...Qe6 24.g4 Qd5+-) 24.g4 Qe6 25.Qf5 Qf5 26.gf5 f6 (26...Ra8 27.e4 Kf8 28.e5+-) 27.Rg1 (27.e4!? Kg7+-) 27...Kf7 28.e4 Ra8 (28...Re8 29.Rg4 Ra8+-) 29.Nf6! Ra3 (29...Kf6 30.e5 Double attack (30.e5 Passed pawn)) 30.Kh4 Kf6 31.e5 (31.Kg4 Ke7+-) 31...Be5 (31...Kf5 32.ed6 cd6+-) 32.de5 Kf5 33.Rg5 (better 33.Re1 Ra4 34.Kh5 Ke6+-) 33...Kf4 (33...Ke6 34.Bd4 Rb3+-) 34.Rg7 (better 34.Bb2 Ra8 35.Rh5+-) 34...Ra1= 35.Rf7 Ke5 36.Rc7 Rb1 37.Rh7?? (37.Kg5=) 37...Kf4 (better 37...Rh1 38.Kg3 Rh7-+) 38.Rf7+/- Ke5 39.Rg7 (39.Kg4 Ke6 40.Rf5 Rf1+/-) 39...Rh1 (better 39...Kf6!? 40.Rb7 Rb5=) 40.Kg5+/- Rg1 41.Kh6 Rf1 42.Rg6 (42.Rg2 Kd5 43.Rg5 Ke4=) 42...Rf2= 43.Rb6 Rb2 44.Rb8 Kd5 45.Kg6 Kc5 Exerts pressure on the isolated pawn 46.Rc8 Kd6 47.Rc6 Kd7 48.Rc8?? (48.Rc5 Kd6 49.Rf5 Kc7=) 48...Rb5 (better 48...Kc8 49.Kf5 Rb5 50.Ke4 Kd7-+) 49.Rf8 Rb6 50.Kf5 Rd6 51.Ke5 Kc6 52.Rc8 Kd7 53.Ra8 Re6 54.Kd5 Rd6 55.Kc5 Rc6 56.Kd4 Rc7 57.Kd5 Rb7 58.Rh8 Rc7 59.Rh7 Kc8 60.Rh6 Kb8 61.Kd6 Kb7 62.Rh8 Rc6 63.Kd5 Rc7 64.Rh2 Ka7 65.Rb2 Rb7 66.Ra2 1-0. BeepBeepImAJeep (2640) - yudhistira_TN (2045), lichess.org, 2018.

9.Nf3 dc4 10.Bc4 c6 11.0-0 cb5 12.Bb5 Nc6 13.d4 Qc7 14.Nbd2 e5? (better 14...Bd7=) 15.Bc6+- bc6? (better 15...ed4 16.Be4 de3 17.fe3 Ng4+-) 16.de5 (16.Ne5?! Be6+=) 16...Ng4 17.ed6 Qd6 18.h3 Nf6 19.Nc4 Qc5 (19...Qe6 20.Qc2+-) 20.Bf6 (20.Qd4 Qd4 21.Bd4 Ne4+-) 20...Qc4 21.Ba1 Bf5 22.Qd4 Qd4 23.ed4 (23.Bd4 f6+-) 23...Be4 24.Rc1 Bf3 (24...Ra8 25.Ne5+-) 25.gf3 Rc8 26.Bc3 (26.d5 c5 27.Bd4 f5+-) 26...c5 (26...f5 27.Ba5+-) 27.dc5 (better 27.Ba5 c4+-) 27...Rc5 28.Bb2 Rc1 29.Bc1 g6 30.Kg2 Kg7 (30...f6 31.f4+-) 31.Kg3 Kf6 32.Kg4 h5 33.Kf4 Ke6 (33...g5 34.Ke4+-) 34.h4 (better 34.Kg5 h4+-) 34...f6 35.Ke4 Kd6 36.Bb2 Ke6 37.Ba1 Kf7 38.f4 Ke6 (38...Ke7 39.f5 Kf7 40.Bf6 Kf6 41.fg6 Kg6 42.f4+-) 39.f3 (better 39.f5 Kf7+-) 39...Ke7 (39...f5 40.Kd4+-) 40.Kd5 (40.f5 Kf7 41.fg6 Kg6 42.Bf6 Kf6+-) 40...Kf7 41.Kd6 g5 (41...f5 42.Kd7 Kf8+-) 42.fg5 (42.hg5 h4 43.Bd4 h3+-) 42...fg5 43.hg5 Kg6 44.Ke5 Kg5 45.Ke4 (better 45.f4 Kg4 46.f5 h4+-) 45...h4 46.f4 Kg4 47.f5 Kg5 (47...h3 48.Be5 Kg5 49.Bh2+-) 48.Be5 (better 48.f6 Kg6 49.Kf3+-) 48...Kh6 (48...h3 49.Bc7 Kf6+-) 49.Bf4 (49.Kd5 h3 50.f6 Kg5 51.f7 Kf5 52.f8Q Kg6 53.Qf6 Kh5 54.Ke4 h2 55.Kf4 h1Q 56.Qg5) 49...Kg7 50.Ke5 Kf7 51.f6 h3 52.Kf5 Kf8 (52...Ke8 53.Ke6 Kf8 54.Bd6 Kg8 55.f7 Kg7 56.f8Q Kg6 57.Qf5 Kg7 58.Qf7 Kh6 59.Bf4) 53.Bh2 (53.Ke6 h2 54.Bd6 Kg8 55.f7 Kg7 56.f8Q Kg6 57.Qf5 Kg7 58.Qf7 Kh6 59.Bf4) 53...Kg8 (53...Kf7 54.Ke5 Kf8 55.Ke6 Kg8 56.f7 Kg7 57.Be5 Kg6 58.f8Q Kg5 59.Qg7 Kh5 60.Kf5 h2 61.Qg5) 54.Ke6 Kf8 (54...Kh7 55.f7 Kg6 56.f8Q Kg5 57.Qg7 Kh5 58.Kf5 Kh4 59.Qg5) 55.f7 Kg7 56.Ke7 (56.Ke7 Kh6 57.f8Q Kh5 58.Qf5 Kh4 59.Bf4 h2 60.Qg5 Kh3 61.Qg3; 56.Be5 Kg6 57.f8Q Kg5 58.Qg7 Kh5 59.Kf5 h2 60.Qg5) 1-0. BeepBeepImAJeep (2590) - TheYellowKing (2310), lichess.org, 2016.

9.Nf3 dc4 10.Bc4 Nbd7 11.0-0 Re8 12.Be2 (12.d4 Nb6 13.Bd3 Nfd5=) 12...e5=+ 13.d4 ed4 (13...e4 14.Ne5=) 14.Nd4 Nb6 15.Nd2 Bd7 16.N2f3 Bg4 17.h3 Bf3 (17...Bd7 18.Qc2=) 18.Bf3+= (worse 18.gf3 Qd7 19.Kg2 Nbd5=) 18...Nbd5 19.Qb3 Nb6? (better 19...Be5+=) 20.Bb7+- Qe7 21.Bf3 (better 21.Nc6 Qe6 22.Qe6 fe6 23.Rd1+-) 21...Rb8?? (better 21...Qe5 22.g3 Ne4+-) 22.Nc6 Qe8 23.Nb8 Qb8 24.Bf6 gf6 25.Bh5 (25.Be4 h6+-) 25...Qf8 26.Rd1 Nd7 27.Rd4 Ne5 28.f4 Ng6 29.Bf3 Bc5 30.Re4 f5 31.Rc4 (31.Ra4 Qe7 32.Kf2 Qh4 33.Ke2 Qf6+-) 31...Bb6 (31...Qe7 32.g3+-) 32.Bd5 Qe7 33.Kh2 (33.Kf2 Qh4 34.Kf1 Qe7+-) 33...Be3 34.g3 Bb6 35.Rc2 Qd6 (35...Qf6 36.Qc3 Kg7 37.Qf6 Kf6 38.Rc6 Kg7 39.Rc4+-) 36.Bf7 Kg7 37.Bg6 hg6 38.Qc3 Kh6 (38...Qf6 39.Qe5+-) 39.Rd2 (39.Qh8) 39...Qf8+- 40.Rd7 g5 (40...Bf2 41.Qc7 Qh8+-) 41.Qc6 Kh5 42.Rh7 (42.Rh7 Qh6 43.Rh6) 1-0. BeepBeepImAJeep (2515) - Jadenyuki0201 (2260), lichess.org, 2017.

9.Nf3 c5 10.Be2 Nbd7 11.0-0 Qc7 12.cd5 ed5 13.d4 (13.Qc2 Re8=) 13...b6 (13...c4 14.Qc2=+) 14.Nc3 Bb7 15.dc5 Nc5 (15...bc5 16.Qd3=) 16.h3 Ra8 17.Nd4 Bh2 18.Kh1 Be5 19.Bb2 (19.Nf3 Bd6=) 19...Nfe4 (19...Nce4 20.Nb1=) 20.Ne4 (20.Kg1 Nc3 21.Bc3 Ra2=) 20...de4=+ 21.Qb1 Qd7 (21...Bd5 22.f4 Bd4 23.Bd4=+) 22.Bg4 (22.Rd1 Qe8=) 22...Qd5 23.Nf5 Re8 (23...Kf8 24.f3 Ra5 25.f4 Bb2 26.Qb2=) 24.Be5 (24.f4 ef3 25.Bf3 Qd7 26.Be5 Bf3 27.gf3 Re5+=) 24...Qe5=+ 25.Nd4 h5 (25...Bd5 26.Kg1=+) 26.Be2= Ra8 27.Kg1 Ra5 (27...Qg5 28.Qc1=) 28.Nc6 Bc6 29.bc6 Qc7 30.Bb5 g6 (30...h4 31.Qb4+=) 31.Rd1 Ra8 (31...Nd3 32.Qb3+=) 32.Qb2+/- Rd8 (32...f5 33.Bc4 Kh7 34.Qf6+/-) 33.Rd8 Qd8 34.Qe5 Ne6 35.Qe4 Qd1 36.Kh2 (36.Bf1 Qd6+-) 36...Qd6+/- 37.f4 g5 (37...Kf8 38.Kg3+/-) 38.g3 (better 38.Kg3!?+-) 38...Qd2+/- 39.Kg1 Qe1 40.Kg2 Qd2 41.Kf3 Qd1 (41...h4!? 42.gh4 gf4+/-) 42.Kf2+- h4 43.gh4 gh4 44.Be2 Qd6 45.Qg2 (45.Bd3 Kf8 46.Bc4 Qd2 47.Be2 Qd6+-) 45...Kf8+/- 46.f5 Nc5 (46...Nd8 47.Qg5+/-) 47.Bc4 (47.Kg1+-) 47...Qe5 (better 47...Nd3!? 48.Kf1 Nb4+/-) 48.Qd5+- Qh2 49.Ke1 Qh3?? (49...Qg3 50.Kd2 Qh2 51.Kc3 Qc7+-) 50.Qf7 1-0. Timmermans,M (2385) - Peyrer,Konstantin (2240), Titled Tuesday (8), 2020.

9.Nf3 c6 10.Nc3 e5 11.bc6 e4 12.cb7 Bg4 13.h3 Bh5 14.g4 ef3 15.gh5 d4 16.Qf3 Qa5 17.Qd1 de3 18.fe3 Bg3 19.Ke2 Qh5 20.Kd3 Qf5 21.e4 Ne4 22.Ne4 Rd8 23.Bd4 Nc6 24.Bg2 Rd4 25.Kc3 Qa5 26.Kb2 Be5 27.Nc3 Rc4 28.Qb3 Rb4 29.Bc6 Rb3 30.Kb3 Qb6 31.Kc2 Qc6 32.Rb1 Bb8 33.d4 Qg2 34.Kd3 Qh3 35.Kc4 h5 36.Rb5 Qf1 37.Kc5 h4 38.d5 h3 39.d6 Qd3 40.Kb4 Qd6 0–1. Bulcourf – Abramson, 1988.

9.Nf3 c6 10.Be2 dc4 11.Bc4 cb5 12.Bb5 Bd7 13.Be2 Bc6 14.0-0 Nbd7 15.d4 Bb8 16.Nbd2 Qc7 17.Re1 (17.Qb1 Rc8=) 17...Ne4 18.Nf1 h6 19.Qb1 Ndf6 20.Rc1 Ng5 (better 20...Qa5!?=) 21.Ne5+/- Nd7 (21...Be4 22.Rc7 Bb1 23.Rb7+/-) 22.f4 (22.Nc6!? bc6 23.f4+-) 22...Ne5+/- 23.de5 (23.fe5?! f6 24.h4 Ne4=) 23...Ne4 24.Bf3 Qd7?? (better 24...f5+/-) 25.Be4+- Be4 26.Qe4 1-0. BeepBeepImAJeep (2580) - bluesquid (2130), lichess.org, 2017.

9.Nf3 c6 10.Be2 Qe7 11.0-0 e5 (11...dc4 12.Bc4 e5 13.d3=+) 12.d4 e4 13.Ne5 Nbd7 14.bc6 Ne5 15.de5 Be5 16.Be5 Qe5 17.cd5 Nd5 18.cb7 Bb7 19.Qb3 Rb8 20.Nd2 (better 20.Rc1!? Bc8 21.Nd2=) 20...Ba6-/+ 21.Qc2?? (better 21.Ba6 Rb3 22.Nb3-+) 21...Be2-+ 22.Rc1 h6 (better 22...Bd3!? 23.Qc8 Qe8 24.Qf5-+) 23.Qe4 Qe4 24.Ne4 Bd3 25.Nc5 Bg6 26.Nd7 Rb1 27.Rb1 Bb1 28.Ne5 Bf5 29.h3 Be6 30.Nf3 Nf6 31.Nd4 Bd5 32.f3 Kf8 33.e4 Be6 34.Kf2 Nd7 35.Ke3 Ke7 36.Nc6 Kd6 37.Nd4 Ne5 38.f4 Nc4 39.Kd3 f6?? (better 39...Nb2 40.Kc2 Na4-+) 40.Ne6+/- Nb2 41.Kc2 Nc4 42.Nd4 (better 42.Ng7!? Ne3 43.Kd3 Ng2 44.Nh5+-) 42...Ne3= 43.Kd3 (43.Kc3 Ng2 44.Nf5 Kc5 45.Ng7 Nf4=) 43...Ng2 44.Nf5 Kd7 45.Ng7 Nf4 46.Kd4 Nh3 47.Nf5 h5 48.Ng7 h4 49.Nf5 Nf2 50.e5 (50.Nh4!? Ne4 51.Ke4 f5 52.Kf4=) 50...fe5-/+ 51.Ke5 h3 52.Ng3 (52.Kf4 h2 53.Ng3 Nd3 54.Kg4 Ne1=) 52...h2 (52...Ng4!? 53.Kf4 Nh2=+) 53.Kf4= h1Q 54.Nh1 Nh1 ½-½. BeepBeepImAJeep (2700) - Boss900 (2335), lichess.org, 2016.

9.Nf3 Nbd7 10.Be2 dc4 11.Bc4 e5 12.0-0 e4 13.Nd4 Ne5 14.Be2 Bg4 15.h3 (15.f3!? ef3 16.Nf3=) 15...Be2=+ 16.Qe2 Re8 17.Nc3 Ng6 (better 17...Qd7=+) 18.f4?? (18.f3 ef3 19.Qf3 Be5=) 18...ef3?? (better 18...Nf4 19.Qc4 Ng6-+) 19.Qf3= Qe7 (better 19...c6!?=) 20.Qb7+/- Ne4?? (20...Qe5!? 21.Nf3 Qe6+/-) 21.Qe4 (21.Nf5 Qe5 22.Ne4 Qe4 23.Nd6 Qb7 A) 24.Ne8? A1) 24...Qb5?! 25.Ng7 (25.Nc7?? Qc6-+) 25...Ne7 26.Bd4=; A2) 24...Nh4 25.Rf2 Qa8 (25...Qb5?! 26.Ng7 Qb1 27.Rf1=+) 26.Nf6 gf6 27.Bf6 Ng6-+; B) 24.Nb7+-) 21...Qe4 22.Ne4 Re4 23.Bc3 Ne5 (23...Ne7!? 24.Kf2+-) 24.Nf5 Bf8? (24...Bb4 25.Ng3 Re3 26.de3 Bc3+-) 25.Ng3 (25.Ng3 Rb4 26.Be5 Rb5 27.Bc7+-) 1-0. BeepBeepImAJeep (2700) - Chusovaya (2575), lichess.org, 2020.

9.Nf3 Nbd7 10.Be2 Nc5 11.cd5 ed5 12.0-0 Nce4 13.Nc3 c6 (13...Re8 14.d3 Nc5 15.Bb2=) 14.bc6 bc6 15.Qc2 Bb8 (better 15...Nc3!? 16.Bc3 c5=) 16.Ne4+/- Ne4? (16...de4 17.Bf6 Qf6 18.Qe4+/-) 17.Qc6?? (better 17.Qb2 Bh2 18.Nh2+-) 17...Bb7?? (better 17...Bg4 18.Qc2 Qd6+/-) 18.Qb7+- Qd6 (18...Nc5 19.Qc6 Qd6 20.Bb5+-) 19.Be5 Qd8 20.Bb8 Qb8 21.Qb8 (better 21.Qd5!? Re8+-) 21...Rb8 22.Rc1 h6 23.d3 Nf6 24.h3 Rb2 25.Bf1 Kh7 (25...Rb7 26.Rc8 Kh7 27.Ne5+-) 26.g4 (26.Rc7 h5+-) 26...Ra2 (26...Rb7 27.Ne5+-) 27.Ne5 (27.Rc7 Kg8+-) 27...d4 (27...Ra7 28.Bg2+-) 28.e4 (better 28.Nf7 de3 29.fe3+-) 28...Nd7 (28...Ra7+-) 29.Nd7 g5 (29...Ra7 30.Ne5+-) 30.Rc7 (30.Rc4 Kg7+-) 30...Ra6 (30...Kg7 31.Ne5 Kg8 32.Nf7+-) 31.Nc5 Kg6 (31...Rf6+-) 32.Na6 (32.Na6 h5 33.Rc6 Kg7 34.gh5+-) 1-0. BeepBeepImAJeep (2570) - Capivara_San (1790), lichess.org, 2017.

9.Bc4 c6 10.Nf3 0-0 11.Nc3 Nbd7 12.0-0 cb5 (12...Nb6 13.Be2=) 13.Bb5 Bb8 14.d4 Nb6 15.Bd3 Nbd5 16.Ne2 (16.Nd5 ed5 17.Qb3 Ne4+=) 16...Nb4= 17.Bb1 Nbd5 (17...Bd7 18.Qd2 Qe7 19.e4=) 18.Ng3 (18.e4 Nf4+=) 18...b5 19.Qb3 Bd7 20.Ne5 Be5 (20...Qa5!?+=) 21.de5+/- Ne8 22.Bd4 Qb8 (better 22...f6!?+/-) 23.Bc5+- Nec7 (23...Qe5 24.Bh7! (worse 24.Bf8 Kf8 25.Bd3 Nd6+/-) 24...Kh7 25.Bf8+-) 24.Bf8 Kf8 25.Bd3 Kg8 26.e4 Nb6 (26...Nf4 27.Rd1+-) 27.Rb1 Qa7 28.h3 h6 29.Ne2 Na4 30.Qb4 Nc5 31.Bc2 Be8 32.Qd4 Qb8?? (32...Bc6+-) 33.Qc5 Na6 34.Qd6 Qc8 (34...Qb7 35.Bd3+-) 35.Bd3 b4 (35...Qb7+-) 36.Ba6 Qc2 37.Qb4 Bb5 (37...Qa2 38.Bd3 Qa4 39.Qa4 Ba4 40.Ra1+-) 38.Qb5 (38.Qb5 Kh7 39.Rc1+-) 1-0. BeepBeepImAJeep (2710) - malkingoesmvp (2350), lichess.org, 2016.

9.Nf3 0-0 10.Bc4 c6 11.0-0 c5 12.d4+= b6 13.Nbd2 Bb7 14.Be2 Re8 15.Nc4 Bc7 (15...Be7!?+=) 16.dc5+/- bc5 17.Qd8 Rd8 18.Rd1 (better 18.b6 Bd6 19.Bf6 (worse 19.Nd6 Rd6 20.Ne5 Rb6=+) 19...gf6 20.Rd1+/- (worse 20.Nd6 Rd6 21.Rc1 Nd7=+)) 18...Bd5?? (better 18...Rd1 19.Bd1 Bd5+=) 19.b6 Bd6 20.Nd6 Rd6 21.Bf6 gf6 22.e4! Rb6 (22...Be4 23.Rd6 Pinning (23.Rd6 Deflection)) 23.ed5 ed5 (23...Rd6+-) 24.Rd5 Rc6 (24...Rb1 25.Bf1 Na6+-) 25.Rd8 Kg7 26.Rb8 c4 27.Bd1 f5 28.Bc2 Kf6 (28...f4 29.Nd4 Rc7 30.Rb4+-) 29.g3 (29.Nd4 Rc7+-) 29...c3 30.Kg2 h5 (30...f4 31.gf4 h5 32.Rb7+-) 31.Rb4 (31.Nd4 Rc7+-) 31...h4 (31...Rc5 32.Nh4+-) 32.Rh4 Rd6 (32...Rc5 33.h3+-) 33.Rf4 Rd2 (33...Ke7 34.Rc4 f4 35.gf4+-) 34.Rf5 Ke6 35.Rf4 (35.Nd2 cd2 36.Rf3 Ke7+-) 35...Rc2 (35...Rd8 36.Ng5 Kd5 37.Bb3 Kc5 38.Rc4 Kb5 39.Nf7+-) 36.Nd4 Ke5 37.Nc2 f5 38.h4 Kd5 39.g4 (39.g4+-) 1-0. BeepBeepImAJeep (2675) - thisisdhaas (2035), lichess.org, 2016.

9.Nf3 0-0 10.Bc4 Nbd7 11.0-0 Nb6 12.Be2 Bd7 13.d4 Qe8 14.Nc3 Nbd5 15.Qb3 Nc3 (15...Qe7 16.Bc4=) 16.Bc3+= Nd5 17.Bb2 c6 18.bc6 Bc6 19.Nd2 Qd7 20.Nc4 Bc7 21.Ba3 Ra8 22.Ne5 Be5 23.de5 f6 24.Bd6 f5 25.Bc4 Qf7 26.f3 Qg6 27.Re1 Qg5 28.g3 h5 (28...Kh8!?=) 29.e4+/- fe4 30.fe4 (30.Re4 Qc1 31.Kg2 Nc3 32.Be6 Kh8-+) 30...Qd2 31.Rd1 Qe3 32.Qe3 Ne3 33.Be6 Kh7 34.Re1 Ra3?? (better 34...Nc2 35.Rf1 Kh6+/-) 35.Ba3+- (35.Ba3 Nc2 36.Rc1 Na3 37.Bd5+-) 1-0. BeepBeepImAJeep (2755) - ColdBloodShed (2375), lichess.org, 2019.

10.Nf3 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Nd5 14.e4 Ne7 (14...Nf4!?=) 15.Qc2+- Nc8 (15...Ng6 16.Bc3+-) 16.e5 (16.Bc3!? Bf4+-) 16...Bb4+- 17.Bd3 Na7? (better 17...h6+-) 18.Bh7+- Kh8 19.Bd3 (19.Be4 Be4 20.Ne4 Be7+- (20...Nb5?? 21.Neg5 g6 22.d5+-)) 19...Qe8? (better 19...c6+-) 20.Qa4 Ba5 (20...Bd2 21.Nd2 (21.Qa7?! Bf3 22.gf3 Qd8+=) 21...Nc8 22.d5+-) 21.d5! Bd5 (21...Bd5 22.Qh4 Mate attack; 21...ed5 22.Qh4 Mate attack) 22.Qh4 (22.Qh4 Kg8 23.Qh7) 1–0. DEFFM – GuestVQRG, freechess.org, 2018.

10.Nf3 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Ne4 14.Ne4 Be4 15.Bc3 Nf6 16.Qe2 (16.Ne5 Qe7=) 16...Qa8= 17.Ra1 Qb7 18.Bb2 Bf3 (18...Ra8!?=) 19.Qf3+= Qf3 20.gf3 h6 21.e4 e5?? (better 21...Nh5+=) 22.de5+- Bc5 (22...Ne8 23.ed6 Nd6+-) 23.ef6 1–0. Pierre – Mannaher, internet, 2020.

10.Nf3 c6 11.Nc3 Nd5 12.Ne4 (12.bc6 bc6 13.0-0 Nb6+=) 12...Bc7 (12...Be7 13.bc6 Nc6 14.0-0=) 13.0-0 (13.Qb3 Nb6=) 13...cb5 14.Bb5 Bd7 (14...f5 15.Nc3=) 15.Qb3 Bb5 (15...b6 16.Bc4+=) 16.Qb5 b6 (16...Qd7 17.Qb2 f6 18.Nc5=) 17.Qb2 (17.Rc1 Qd7 18.Qb1 f6=) 17...f6 18.Neg5 (18.Rc1 Qd7=) 18...Qe7 (18...Qd7 19.Ne4=) 19.Ne4 Nd7 20.Qb3 (20.Rc1 Ra8=) 20...Ra8 21.Bb2 (21.Bd4 Ra3 22.Qc2 f5=) 21...Kf7 (21...Qb4 22.Qc2 Ra2 23.Qc6=) 22.Nd4 (22.Rc1 Kg8=) 22...Nc5 23.Nc5 Qc5 (better 23...bc5!? 24.Nb5 Rb8=+) 24.Rc1+- Qd6 25.e4?? (better 25.f4 Bd8 26.f5 ef5 27.Nf5+-) 25...Qh2-+ 26.Kf1 Qh1 27.Ke2 Nf4 28.Ke3 Ng2 29.Ke2 Qh5 (29...Nf4 30.Ke3 Qh3 31.f3-+) 30.Nf3?? (30.Kf1 Qh1 31.Ke2 Nf4 32.Ke3 Qh3 33.f3 Ng2 34.Ke2-/+) 30...Bd8 (30...Ra7 31.Bd4 Qg4 32.Qb1-+) 31.Rc6 (31.d4 Qg4 32.Kf1 Nf4-+) 31...Qg4 32.Rc4 (32.Qc2 Ra2 33.Rc3 b5-+) 32...Nh4 33.Bd4 (33.e5 Qf3 34.Qf3 Nf3 35.Kf3-+) 33...Qe4 34.Qe3 Qf3 35.Qf3 Nf3 36.Kf3 b5 37.Rb4 (37.Rc2 b4-+) 37...Rb8 (37...Ra4 38.Bc5 Rb4 39.Bb4-+) 38.Bc5 Be7 39.d4 e5 (39...h5 40.Kg3-+) 40.Kg4 (40.Be7 Ke7 41.de5 fe5-+) 40...ed4 41.Be7 Ke7 42.Rd4 (42.Kf3 d3 43.Re4 Kf7-+) 42...b4 43.Rd2 b3 44.Rb2 Ke6 45.f4 (45.f3 g5-+) 45...Kd5 46.Kf5 Kc4 47.Ke6 (47.Rb1 Kd3-+) 47...Rb7 48.f5 (48.Rb1 Kd3-+) 48…Kc3 (48...Kc3 49.Rb1 b2-+) 0–1. jaddwarrior (1640) – mur422 (2250), ChessWorld.net, 2013.

10.Nf3 Bd7 11.0-0 Qe8 12.Nc3 c6 13.bc6 Nc6 14.d4 Bb4 15.Be2 Bc3 (15...Qe7!?=) 16.Bc3+/- Ne4 17.Bb2 Nb4 (17...Ne7 18.Qc2 Bc6 19.Ba3+/-) 18.Ne5 (18.Qb3 Nd5+-) 18...Bc6 (better 18...Bb5!?+=) 19.Bf3+- Nf6 (19...Ng5 20.Bc6 Nc6 21.Ba3+-) 20.Nc6 (20.Ba3 Bf3 21.Nf3 Nbd5+-) 20...Nc6 21.Qb3 (better 21.Ba3!? Ne7 22.Qb3+-) 21...Qd7+/- 22.Ba3 Ra8 23.h3 (23.Rc1 Nd5+=) 23...Nd5 24.Rb1 Ra7 (24...Rb8!?+=) 25.Bc5 Na5 26.Qa3 Ra6 27.Be2 Nc4?? (27...Ra8 28.e4 Nc7 29.Ra1+/-) 28.Qb3 (better 28.Qa6! Ncb6 A) 29.Bb6?! ba6 30.Bc5 g5+=; B) worse 29.Rb6 Nb6 (29...ba6?? 30.Rb8 Qc8 31.Rc8) 30.Qb6 g6+-; C) 29.Qa5+-) 28...Nd2 (28...Na5 29.Qc2 Ra8+/-) 29.Qc2?? (better 29.Qb7 Qb7 30.Rb7 Ra1 31.Kh2+-) 29...Nb1= 30.Ba6 ba6 31.Qb1 h6 32.Qb8 Kh7 33.Qa8 Qc6?? (33...Qb5 34.Qa7 Nc3-/+) 34.Qc6+- 1-0. BeepBeepImAJeep (2625) - zsnorbi (2080), lichess.org, 2019.

10.Nf3 Nbd7 11.0-0 b6 12.d4 Bb7 13.Nbd2 Re8 14.Qc2 Nf8 15.Bd3 Ng6 16.Bc3 Nd5 17.Rc1 Nb4? (better 17...Qd7=) 18.Bb4+- Bb4 19.Qc7 Bf3 20.Nf3 (20.gf3? Bd2 21.Qd8 Rd8-+) 20...Qa8 (20...Ne7 21.Ne5+-) 21.Qc6 (21.Bg6!? hg6 22.Ne5 Rf8+-) 21...Qb8 22.h3 (22.Bg6 hg6 23.Ne5 Qd8+-) 22...Ba5 (22...Ne7 23.Qc7 Bd6 24.Qb8 Rb8+-) 23.Bg6 hg6 24.Ne5 Bd2 (24...Qd8+-) 25.Rc2 Bb4 26.Qc7 (better 26.Qd7 Rf8 27.Nf7+-) 26...Qc7 27.Rc7 Be7? (27...Bd6 28.Ra7 Be5 29.de5 Rb8+-) 28.Rb7 Bf6 29.Nf7 Rc8 (29...Re7 30.Re7 Be7 31.Ne5+-) 30.Ne5 (30.Nd6!? Rd8 31.Nc4 Rc8 32.Nb6 Rc1 33.Kh2 e5 34.de5 Be5 35.f4 Ba1+-) 30...Be5 31.de5 Rc5 32.Rb6 Re5 33.Kf1 Kf7 34.Ke2 Kf6 35.Rb7 Rc5 36.Kd3 Rc1 (36...Rd5 37.Kc3+-) 37.b6 Rd1 38.Ke2 Rb1 39.Kf3 Rb2 40.g4 (40.h4 g5 41.hg5 Ke5+-) 40...Rb4 (40...g5 41.Kg3+-) 41.Kg3 (better 41.h4!? g5 42.hg5 Ke5+-) 41...g5 42.h4 gh4 43.Kh4 Rb3 (43...g5 44.Kg3+-) 44.Kg3 (44.g5 Kg6 45.Kg4 Rb4 46.f4 Rb1+-) 44...g6 (44...Ke5 45.Rg7 Rb6 46.f4 Kf6 47.Rc7+-) 45.Kf3 (45.Rb8 g5+-) 45...g5 46.Rb8 Rb4 47.b7 Ke5 48.Ke2 Rb2 (48...Kd6 49.Rd8 Kc7 50.b8Q Rb8 51.Rb8 Kb8 52.Kd3+-) 49.Kd3 Rb3 50.Kc4 Rb6 51.Kc5 Rb1 52.Kc6 Rc1 53.Kd7 Rb1 54.Kc7 (54.f4!? gf4 55.ef4 Kf4 56.Ke6 Kg3+-) 54...Rc1 55.Kd8 Rb1 56.Ke7 Rb2 (56...Rb6 57.Kf7+-) 57.Kf7 (better 57.f4 gf4 58.ef4 Kf4 59.Ke6 Kg3+-) 57...Ke4 (57...Rf2 58.Kg6 Rb2 59.Kg5+-) 58.Kg6 (better 58.Ke6!? Rb6 59.Kd7 Kd5+-) 58...Rb5 59.Re8 (better 59.Kh5+-) 59...e5 (59...Rb7 60.Re6 Kf3 61.Kg5 Rb5 62.Kg6 Kg4+-) 60.b8Q Rb8 61.Rb8 Kf3 62.Rf8 (62.Kg5 Kf2 63.Kh4 Kf1 64.g5 Kf2 65.Rb3 e4 66.g6 Kg2 67.g7 Kg1 68.g8Q Kf1 69.Qc4 Kf2 70.Rb2 Ke3 71.Re2 Kf3 72.Qe4) 62...Kg4 63.Rf5 e4 64.Rg5 Kf3 65.Rf5 Ke2 66.Rf4 Kd3 67.Kf5 Kc4 68.Re4 Kd5 69.Rf4 Kd6 70.Kg4 (70.e4 Kd7 71.e5 Kc7 72.e6 Kb7 73.e7 Ka6 74.e8Q Kb6 75.Rc4 Ka5 76.Qa4 Kb6 77.Qb3 Ka5 78.Ra4) 70...Kd7 71.Kf3 (71.Rd4 Ke6 72.Kg5 Ke5 73.f4 Ke6 74.e4 Kf7 75.f5 Kg7 76.Rd7 Kf8 77.f6 Ke8 78.Re7 Kd8 79.e5 Kc8 80.f7 Kd8 81.f8Q) 71...Ke7 72.Ke2 Ke6 73.Rd4 Ke5 74.Kd3 (74.Kd3+-) 1-0. BeepBeepImAJeep (2690) - Boss900 (2340), lichess.org, 2016.

9.Nf3 0-0 10.Be2 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Qe7 14.cd5 ed5 15.dc5 bc5 16.Nb3 Nb6 17.Na5 Ba8 18.Nc6 Qc7 (18...Bc6 19.bc6 Rc8 20.Bb5=) 19.Bf6+= gf6 20.Na5 Kh8 (20...Re8 21.Re1=) 21.Qc2+= Qe7 22.Rd1 Qe6 23.Nb3 (23.Bd3 Qe8+/-) 23...Qe7 24.Rc1 Rc8 25.Nbd2 Bb7 26.Qf5 Qe6 27.Qh5 Rg8 28.Nh4 (28.Nb3 Qe7+/-) 28...Rg5 29.Qh6 Nd7 (better 29...Rg7+=) 30.g3?? (better 30.Ndf3 Rg7 31.Qh5+/-) 30...Bf8-+ 31.Qg5 (31.Ng6 fg6 32.Qh4-+) 31...fg5 32.Nhf3 h6 33.h4 Ne5 34.hg5 Nf3 35.Nf3 hg5 36.Ng5 Qf5 (36...Qe7 37.Nf3 d4 38.Rc4-+) 37.Nf3 (37.f4 f6 38.g4 Qd7-+) 37...d4 38.Nh4 Qd5 (38...Qe5!? 39.Nf3 Qe4 40.Rd1-+) 39.Bf3 Qd7 40.Bb7 (40.ed4 Bf3 41.Nf3 Qb5-+) 40...Qb7 41.ed4 cd4 42.Rd1 d3 (better 42...Bc5 43.Ng2-+) 43.Rd3 Qb5 44.Rd8 Qc5 45.Rd3 Kg7 46.Rf3 Bd6 47.Kg2 Be5 48.Nf5 Kf8 49.Ne3 (49.Rd3 Qc6 50.Kg1 Bc7-+) 49...Qd5 (better 49...Qc6-+) 50.Ng4 1-0. BeepBeepImAJeep (2755) - dan_tes (2535), lichess.org, 2020.

9.Nf3 Nbd7 10.d4 0-0 11.Nc3 Qa5 12.Qa4 Qc7 13.Qb3 cd4 14.Nd4 Nc5 15.Qc2 Qa5 16.Qa2 Qa2 17.Na2 Bd7 18.Nf3 Nfe4 19.Nc3 Ra8 20.Bb2 Nc3 21.Bc3 Ne4 22.Bd2 Ra1 23.Ke2 dc4 24.Nd4 Ra2 25.Nf3 c3 0–1. Berlik – Buczinski, Siemianowice Slaskie, 1966.

9.Nc3 0-0 10.Nf3 e5 11.Be2 (11.d4 e4 12.Ne5=+) 11...d4 (better 11...e4!? 12.Nd4 dc4 13.bc6 bc6=+) 12.ed4= ed4 (12...e4 13.Ng5 Re8 14.d3 cb5 15.Nb5 (15.Nce4?! Bb4 16.Bc3 Bc3 17.Nc3 Qa5=) 15...Bb4 16.Kf1+=) 13.Nd4+= Qc7 14.Nf3 Bg4 15.h3 Bf3 16.Bf3 (worse 16.gf3 Re8=) 16...Re8 17.Be2 Qe7 18.0-0 Qe5 19.f4 Qc5 (19...Qd4 20.Kh1 Ne4 21.Ne4 Qe4 22.Rf2=) 20.Kh1 (20.d4 Qb4+-) 20...Nbd7 (20...Qf5!?+=) 21.d4+- Qa3 22.c5 Bc7 23.b6 Bb8 24.Bg4 (24.Bd3 Re3+-) 24...Ng4 25.Qg4 Nf6 26.Qf3 Qb4 27.Ne2 (27.Rd1 Qb3+-) 27...Nd5 (better 27...Qd2 28.Ng1 Re3=) 28.Qg4?? (better 28.Qd3+=) 28...Qd2-+ 29.Ng3 Nf4?? (better 29...Ne3 30.Ne4 Qc2 31.Nf6 Kh8-+) 30.Nf5 g6 31.Nh6 (31.Nd6 Re1 32.Qf3 Bd6 33.cd6 Qc1 34.Re1 Qe1 35.Kh2 Nd5=+) 31…Kf8 (31...Kf8 32.d5 cd5-+) 0–1. GuestSMVF – GuestBBXV, freechess.org, 2017.

9.Nf3 0-0 10.Be2 Nbd7 11.0-0 Qc7 (11...cb5 12.cd5 Nd5 13.Nc3=+) 12.bc6= bc6 13.cd5 cd5 (13...ed5 14.Qc2=) 14.Nc3 Qb8 15.Qa4 Nc5 16.Qc2 Qb3 17.Qb3 Nb3 18.Nb5 Be7 (18...Ba6 19.Nd6 Be2 20.Rb1=) 19.Be5+= Ne4 20.d3 Ned2 21.Nd2 Nd2 22.Rd1 Bd7 23.Nc7 Nb3 24.Rb1 Nc5 25.f3 f6 (25...Na4 26.Bf1=) 26.Bg3+= Kf7 27.d4 Na4 28.Bf1 Rc8 29.h4 h5 30.Rb7 Bc6 31.Ra7 Nb2 32.Na6 (32.Nb5 Kf8+=) 32...Kf8 (32...Nc4 33.Nb4 Bb5 34.Bc4 dc4 35.Bd6+=) 33.Be2 Nc4 34.Nc7 (34.e4 Be8+=) 34...Kf7 35.e4 Ne3 (35...Rb8 36.Ne6 Rb1 37.Kh2 Ke6 38.Bc4 dc4 39.d5 Bd5 40.ed5 Kd5 41.Re7+-) 36.Bf2 (36.Bb5 Bb5 37.Nb5 Kf8+=) 36...Nc2 (36...Nc4 37.f4 Nb6 38.f5 ef5 39.ef5+-) 37.ed5 Bd5 38.Nd5 ed5 39.f4 g6 40.f5 gf5 41.Bh5 Ke6 42.Bg6 f4 43.g4 Rc4? The isolani on d4 becomes a target (better 43...Rc3+=) 44.Bf5+- Kf7 45.h5 Nd4? (better 45...Ne3 46.h6 Rc1 (46...Rd4?? 47.h7 Rd1 48.Kh2+-) 47.Kh2 Nf5 48.gf5 f3+-) 46.Bg6+- Ke6 (46...Kf8 47.h6 Rc1 48.Kh2+-) 47.h6 Rc1 48.Kh2 Nf3 49.Kg2 (49.Kg2 Ng5 50.Bf5 Kf7 51.h7 Nh7 52.Bh7+-) 1–0. pvanr (2255) – festis (2000), gameknot.com, 2015.

9.Nf3 cb5 10.cb5 0-0 11.Nc3 Bd7 12.Be2 Bb4 13.0-0= Bc3 (13...Bd6 14.Qb3=) 14.Bc3+= Ne4 15.Bb2 Qe8 (15...Qb6 16.Bd4 Qa5 17.Qa1 Qa1 18.Ra1+/- (18.Ba1?! Rc8=)) 16.Qb3 b6? (16...f6 17.Ba3 Rf7 18.Rc1+/-) 17.d3 (17.Ba3 Nc5 18.Qb2 Ne4+-) 17...Nf6? (17...Nc5 18.Qc3 f6 19.d4+=) 18.d4 (better 18.Ba3!?+-) 18...Qc8 19.Rc1 Qb7 20.Ne5 Rc8 21.Rc3 Ne4 22.Rc2 (22.Rc8 Qc8 23.f3 Nd6+/-) 22...Rc7 (22...f6 23.Nd7 Qd7 24.Rc8 Qc8 25.Bd3+=) 23.Bd3 f5 (23...Rc2 24.Qc2 Be8 25.f3+/-) 24.f3 Nd6 25.Ba3 (better 25.Rc7!? Qc7 26.Ba3+/-) 25...Rc2= 26.Bc2 Nb5 27.Bb4 (27.Bd3 Na3 28.Qa3 Nc6 29.Nd7 Qd7 30.Qa8 Nd8+=) 27...Na6 (27...Nc6!?=+) 28.Bd2 Nd6 29.Bd3 Nb8 30.Bb4 Qc7 31.Qa3 Nb5 32.Qa8 Na7?? (better 32...Qa7 33.Qa7 Na7=) 33.Nd7+- Nac6 34.Nb8 Nb8 35.Kf2 h6 36.Bb5 Kh7 37.f4 Qc2 38.Kg3 Qe4 39.Bd2 Qc2 (39...Qb1 40.Qa4+- (40.Qb8?! Qb5 41.Qe5 Qd3+-)) 40.Qb8 Qd2 41.Qe5 (better 41.Kf3!? Qd1 42.Be2 Qg1 43.Qb6 Qh2 44.Qe6 Qh5 45.g4 Qg4 46.Kf2 Qh3+-) 41...Qe1 42.Kh3 Qf2?? (42...g5 43.Qc7 Kg8+-) 43.Bd7 (43.Qe6 g5 44.Qf5 Kg7 45.Qe5 Kf8 46.Qf6 Kg8 47.Qg6 Kf8 48.Qh6 Kf7 49.Qh7 Kf8 50.Qf5 Ke7 51.Qg5 Kf8 52.Qf6 Kg8 53.Qd8 Kg7 54.Qe7 Kg8 55.Bc6 Qa2 56.Bd7 Qc2 57.Be6 Kh8 58.Qf8 Kh7 59.Bg8 Kh8 60.Bf7 Kh7 61.Qg8 Kh6 62.Qh8 Qh7 63.Qf6 Qg6 64.Qg6) 43...Qe2= 44.g3?? (44.Kg3 Qe1 45.Kh3 Qe2=) 44...Qh5 (better 44...g5 45.fg5 hg5 46.Qf5 ef5 47.Bf5 Kh6-+) 45.Kg2= Qe2 46.Kg1 Qe1 47.Kg2 Qe2 48.Kh3 Qh5 (better 48...g5 49.fg5 hg5 50.Qf5 ef5 51.Bf5 Kg7-+) 49.Kg2= Qe2 ½-½. BeepBeepImAJeep (2745) - i_layu (2430), lichess.org, 2020.

9.Nf3 Nbd7 10.Be2 cb5 11.cb5 e5 12.0-0 0-0 13.d4 e4 14.Ne5 Qe7 15.Nd7 Bd7 16.Nc3 Ra8 17.Bb2 g6 (17...Bc7 18.f3=+) 18.Qb3= Be6 19.Ra1 Ra1 20.Ba1 h5 21.h3 g5 22.b6 g4 23.h4 g3 24.f3?? (24.f4 Ng4 25.Bg4 A) 25...hg4?! A1) 26.Nd5?? Qh4 27.Qb5 Qh2 28.Kf1 Qh1 29.Ke2 Qg2 (29...Qa1?! 30.Nf6 Kg7 31.Qg5 Kf8 32.Qg8 Ke7 33.Qe8 Kf6 34.Qd8 Kg7 35.Qg5 Kh7 36.Qh4 Kg8 37.Qg5 Kh8 38.Qf6 Kg8 39.Qg5 Kf8 40.Qd8 Kg7 41.Qg5 Kh7 42.Qh4 Kg6 43.Qg5 Kh7=) 30.Kd1 Qh1 31.Kd2 Qh2 (31...Qa1?! 32.Nf6 Kg7 33.Qg5 Kf8 34.Qg8 Ke7 35.Qe8 Kf6 36.Qd8 Kg7 37.Qg5 Kh7 38.Qh4 Kg8 39.Qg5 Kh8 40.Qf6 Kh7 41.Qh4 Kg6 42.Qg5 Kh7 43.Qh4=) 32.Kc3 g2 33.Nf6 Kg7 34.Qg5 Kf8-+; A2) 26.h5-/+; B) 25...Bg4 26.Nd5 Qh4 27.Nf6 Qf6-+) 24...ef3?? (better 24...Nd7 25.Kf1 Qh4-+) 25.Bf3=+ (25.gf3 Ng4 26.Qa2 Qh4-+) 25...Ng4 26.Nb5 (26.Nd5 Qh4 27.Bb2 Nf2-+) 26...Qh4 27.Nd6 Qh2 28.Kf1 Qh1 29.Ke2 Qa1 30.Kd2 h4 (better 30...Qa5!? 31.Kd1 Nh2 32.Bh5 Nf1-/+) 31.Nb7= Nh2 32.Be2?? (32.Nc5 Nf3 33.gf3-+) 32...h3 (32...Nf1 33.Bf1 Qf1-/+) 33.Nc5-/+ hg2 34.b7 g1Q?? (better 34...Nf1 35.Kc2 Bf5 36.e4 g1Q (36...Qd4?! 37.b8Q Kh7 38.Qf8 Qd2 39.Kb1=) 37.b8Q Kh7-+) 35.b8Q+- Kg7 (35...Kh7 36.Bd3 Kh6 37.Qh8 Kg5 38.Ne6 fe6 39.Qg7 Kh4 40.Qh6 Kg4 41.Qe6 Kh4 42.Qh6 Kg4 43.Be2 Nf3 44.Bf3 Kf3 45.Qd5 Kg4 46.Qdh5) 36.Ne6 Kh6 (36...fe6 37.Q3b7 Kg6 38.Qg8 Kf5 39.Qbh7 Kf6 40.Qgg7) 37.Qh8 Kg6 38.Bd3 (38.Qd3 f5 39.Qg7) 38...f5 39.Qg7 Kh5 40.Qg5 1-0. BeepBeepImAJeep - ChArLiE_WaFfLeS (2335), lichess.org, 2017.

9.Nf3 Nbd7 10.Be2 dc4 11.Bc4 Nb6 12.Be2 Bd7 13.Nc3 0-0 14.0-0 Bb8 15.d4 Qc7 16.Qb3 Nbd5 17.Rc1 Rc8 18.Bb2 Qd6 19.Ne5 Nc3 20.Rc3 Ne4 21.Rc2 Qe7 22.Bd3 Be5 23.de5 (worse 23.Be4 Bh2 24.Kf1 Bd6-/+ (worse 24...cb5 25.Rc8 Bc8 26.g3+/-)) 23...Nc5 24.Qa3 b6 25.bc6 Bc6 26.Bd4 Qg5 27.Bf1 Be4 28.Rc4 Bd5 29.Rc3 h5 30.Qc1 Ra8 31.Bc5 (31.Ra3 Ra3 32.Qa3 Nb3+=) 31...bc5= 32.Rc5 Qe5 33.Rc8 Rc8 34.Qc8 Kh7 35.Qc2 Be4 36.Qd1 Qg5 37.Qd2 h4 38.h3 Bf5 39.Qe2 (better 39.Bd3!?=) 39...Bh3-/+ 40.f4 Qg4?? (better 40...Qg3-/+) 41.Qf2 Qg6?? (better 41...g5 42.Kh2 Bg2 43.Bg2 Qf5+/-) 42.Qd2 (42.Qh4!? Qh6 43.Qh3 Qh3 44.gh3 Kg6+-) 42...Qh6?? (better 42...Bf5-/+) 43.gh3+- Qg6 44.Bg2 Qf5 45.Qf2 Qb1 (45...g5 46.fg5 Qf2 47.Kf2+-) 46.Kh2 Qb8 47.Qh4 Kg8 48.Qf2 e5 49.Qg3 ef4 50.Qf4 Qe8 51.Qg3 Qe6 52.h4 Qf6 53.Bh3 (53.e4 Qh6+-) 53...Kh7 54.Bg2 Qh6?? (54...Kg8 55.e4 Qe6+-) 55.Qf4 Qf4 56.ef4 Kh6 57.Kg3 Kh5 (57...g6 58.Kg4+-) 58.Bf3 Kg6 59.Bg4 f5 (59...Kf6 60.h5+-) 60.Bf3 (60.h5 Kh6 61.Bh3 Kh5 62.Bf5 Kh6+-) 60...Kf6 (60...Kh6 61.h5 g5 62.hg6 Kg6 63.Kh4+-) 61.h5 g6 (61...g5 62.hg6! Kg6+-) 62.hg6 1-0. BeepBeepImAJeep (2595) - ChessKnightOfEngland (2315), lichess.org, 2016.

9.c4 b6 10.d3 dc4 11.dc4 Bb4 12.Nbd2 Ne4 13.Be2 (13.Qc2 Bb7 14.Bd3 f5=) 13...Nd2 14.Nd2 Bb7 15.0-0? (better is 15.Qc2+=) 15...Qd2 16.Qd2 Bd2 17.Be5 c6 18.Bf3 Nd7 19.Bd6 Rc8 20.Rd1 Bc3 21.Bf4 Ne5 22.Be5 Be5 23.bc6 Ba6 (23...Ba8!? 24.Rd7-+) 24.Rc1 Bc7 25.Kf1 Rd8 (25...Bh2?! 26.g3-/+) 0–1. Hal1958 – Coolhandluke, playchess.de, 2005.

9.c4 b6 10.cd5 ed5 11.Qc2 Nbd7 (11...Bb7 12.Qf5=) 12.Be2 Re8 13.0-0 Nc5 14.Bd4 Bg4 (14...Bb7 15.d3+=) 15.h3 Bd7 (15...Bc8 16.Nc3+=) 16.Nc3 Nce4 17.Qb3 Nc3 18.Qc3 Ne4 19.Qb2 f6 20.Ra1 Nc5 21.d3 Qc8 22.Bc3 Bf5 23.Qa2 Qe6 24.Qc2 Qe7 25.Ra7 Qd7 (25...Bd7!?+=) 26.Nd4+/– Bh3 (26...Be5 27.Nf5 Qf5+/–) 27.gh3 (27.Bf3 Be6 28.Ne6 Ne6 29.Qb3+=) 27...Qh3= 28.Nf3 Ne6 29.Qa2 (29.Bd1 d4=) 29...Nf4 30.ef4 Qg4 31.Kh1 Qh5 32.Kg2 Qg4 33.Kh2 Bf4 34.Kh1 Qh3 35.Kg1 Qg4 36.Kf1 Qh3 37.Kg1 Qg4 38.Kh1 Qh3 39.Kg1 ½–½. Pierred (2195) – Improving (2540), Rated game, 3m + 0s, 2005.

9.c4 b6 10.cd5 Nd5 11.Bc4 =.

9.c4 c5 (--> 7.Ba1 c5 8.Nf3 Bd6 9.c4 0-0).

9.c4 Nbd7 10.Be2 c5 11.Nc3 Nb6 12.d3 dc4 13.dc4 Qe7 14.Qc2 e5 15.Nd2 Bg4 16.f3 Bh5 17.0-0 Bb8 18.Rd1 Ba7 19.e4 Qd6 20.Nf1 Qc7 21.Ne3 Bg6 22.Ncd5 Nbd5 23.Nd5 Nd5 24.Rd5 f6 25.Qd2 Bf7 26.Rd7 Qb8 27.Qa5 Qc8 28.Rf7 Rf7 29.Qa7 Rd7 30.Bc3 Rd8 31.Ba5 Qa8 32.Qa8 Ra8 33.Bb6 Rc8 34.Bf1 g5 35.g3 Kf7 36.Bh3 Ra8 37.Bc5 Ra4 38.Bf1 h5 39.Kf2 1–0. Kreuzer – COMP, 1989.

9.Bd3 Nbd7 10.0-0 e5 11.Be2 Qe7-/+.

9.Bd3 Nbd7 10.Nd4 e5 Black gets in control 11.Nf5 Nc5 12.Nd6 Qd6 (12...Nd3 13.cd3 Qd6 14.f4 ef4 15.0-0-/+) 13.Be2 Bf5 Black plans d4 14.0-0 (14.f4 ef4 15.0-0 Ra8=) 14...Ra8=+ 15.Bb2 (15.Be5!? Qe5 16.d4-/+) 15...Ra2-/+ 16.Qc1 Na4 17.Bc3? (better 17.Ba3 Qb6 18.Bd3 Bd3 19.cd3-/+) 17...d4-+ (17...Bc2?! 18.f4 ef4 19.Bf6 Qf6 20.Bd1-+; 17...Nc3?! 18.Nc3 Rc2 19.Qd1-+) 18.Bd3 (18.Bc4 Rc2 (18...Nc3?! 19.e4 Ne2 20.Be2 Be4 21.d3-+) 19.Qd1 Nc3 (19...dc3?! 20.d3-/+) 20.dc3 de3 (20...dc3?! 21.f3-+) 21.Qd6 cd6-+) 18...Bd3 (18...Nc3?! 19.dc3 Bd3 20.cd3=+; 18...dc3?! 19.Bf5 cd2 20.Qd2 Qd2 21.Nd2-/+) 19.cd3 dc3 (19...Nc3?! 20.dc3 de3 21.Qe3=+) 20.dc3 (20.Nc3 Nc3 21.dc3 Qd3-+) 20...e4 (20...Qd3!? 21.Rd1 Qb5 22.Rd8 Ne8 23.c4-+) 21.d4 Ng4 22.g3 Qh6 23.h4 g5 (23...Qg6 24.Qe1-+) 24.Qd1 Qe6 25.h5 (25.d5 Qf5 26.d6 cd6 27.Qd6 Rf2 28.Qd8 Kg7 29.Qg5 Qg5 30.hg5-+) 25...Ne3! 26.Qe1 (26.fe3 Qh3) 26...Nf1 27.Kf1 Qc4 28.Kg2 Qd3 29.Qc1 (29.Kh3-+) 29…h6 (29...h6 30.Kg1 Ra1-+; 29...Qf3 30.Kh3 Qf5 31.g4 Qf3 32.Kh2 Qf2 33.Kh1 Qg2) 0-1. petrobbo (1965) - Doingmybest (2225), ChessWorld.net, 2010.

9.Bd3 Nbd7 10.g4 Ne4 (10...Ng4 11.Rg1 f5 12.Nc3-+) 11.h4 Ndc5 (11...e5 12.Be2-/+) 12.g5 (12.Nc3 Bd7-/+) 12...Nd3 (12...f5 13.gf6 Nf6 14.Rg1-/+) 13.cd3 Nc5 14.Ke2 (14.Qc2 e5 15.Ne5 Bf5-/+) 14...c6 (14...Qe8 15.d4 Qb5 16.d3-/+) 15.Nc3? (better 15.bc6!? bc6 16.Bd4=+) 15...e5-+ 16.Na4? (better 16.Rg1-+) 16...Bg4 (better 16...Nd3 17.Ne1 e4-+) 17.Qg1 0–1. yodamo – Pdimov, ChessWorld.net, 2009. (1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.e3 0-0)

9.d4 c6 10.Nbd2 Qc7 11.Ne5 Nfd7 12.Ndf3 (12.Nef3 Nf6+=) 12...cb5-/+ 13.Bb5?? (better is 13.Bd3-/+) 13…Qa5-+ (13...Qa5 14.Nd2 Qb5-+) 0–1. Schaar,Joerg (1940) – Markoja,Johann (2070), RSS4D easy–35, 2007.

9.d4 c6 10.Bd3 cb5 11.0-0 Qa5 12.Nc3 b4 13.Nb5 Be7 14.Ne5 Nc6 15.Bb2 Ne4 16.Qh5 (better 16.f3!? Ne5 17.de5-/+) 16...Qa2-+ 17.Ba1 (17.Bc1 f5-/+) 17...f6 18.Nf3 (18.Ng4 Bd7 19.f4 Na5-+) 18...Bd7 19.Nd2 (better 19.Qh4-+) 19...g6 (19...Nd2?? 20.Qh7 Kf7 21.Bg6) 20.Qh6 (20.Qe2 Nd2 21.Qd2-+) 20...Nd8 (20...Nd2?! 21.Bg6 hg6 22.Qg6 Kh8 23.Qh6 Kg8 24.Qg6 Kh8 25.Qh6 Kg8 26.Qg6=) 21.Nb3 (21.Nf3 Qa5 22.c4 bc3 23.Be4 de4 24.Nc3 ef3 25.gf3 Nf7-+) 21...Bb5 22.Bb5 Qc2 23.Nc1 Nf7 24.Qf4 (24.Qh3 Ra8 25.Nd3 f5-+) 24...Ra8 25.Nd3 b3 26.Bb2 (26.Qg4 Ned6 27.Nb4 Qd2-+ (27...Nb5? 28.Nc2 bc2 29.Rc1+-)) 26...Nfd6 27.Rc1 (27.Qg4 f5 28.Qd1 Qd1 29.Rd1 Nb5-+) 27...Qd2 (27...Nb5?! 28.Rc2 bc2 29.Qg4-+) 28.Bd7 (28.f3 Nb5 29.fe4 Qd3-+) 28...Qd3 29.Be6 Kh8 30.Bd5 (30.Qg4 Qd2 31.Qd1 Qf2 32.Kh1 Qb2-+) 30...Nc3! 31.Bc3 (31.Bc3 Qc3; 31.Rc3 Qd1 Mate attack) 31...Qc3!! 32.Rb1 (32.Rc3 Ra1 Mate attack) 32…Ra1 (32...Ra1 33.g3 Rb1 34.Kg2 b2-+) 0–1. DEFFM – GuestSHZT, freechess.org, 2019.

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

9.Be5 Be5=+ 10.Ne5 Nbd7 11.d4 Ne5 12.de5 Nd7 13.f4 Qh4 (13...c5 14.Be2=+) 14.g3 Qe7 15.Nc3 Qa3 16.Qd2 Nc5 17.Bg2 Na4 18.Na4 Qa4 19.b6 cb6 20.0-0 Bd7 21.Rb1 Rc8 22.c3 Bb5 (22...Rc5 23.e4 de4 24.Qe1=+) 23.f5 Ba6 24.e4 de4 25.fe6 fe6 26.Qd6 Re8 (26...Rc3?! 27.Qe6 Kf8 28.Qf5 Ke7 29.Qg5 Kf8 30.Qd8 Qe8 31.Qd6 Qe7 32.Be4=) 27.Qb6 (27.Re1 Bd3=+) 27...Qc2 28.Re1 (28.Qb2!? Qb2 29.Rb2-/+) 28...Qc3-+ 29.Qe3 Qe5 30.Be4 Qa5 31.h3 Qh5 (31...Rf8 32.Bg2 Rf6 33.Rc1-/+) 32.Kh2-/+ Kh8 33.Rb1 Qe5 (33...Qf7 34.Qf4 Qf4 35.gf4-+) 34.Qf4 (34.Rb6 Rf8-+) 34...Qf4 35.gf4 Re7 36.Kg3 (36.Rb6 g6-+) 36...Kg8 (36...g6 37.Rb6-+) 37.Kf2 (37.Kf3 g6-+) 37...g6 38.Ke3 Kf7 39.Rb6 Rd7 (40.Kf3 h6-+) 0–1. marekt (2490) – lonewolf (2555), ChessWorld.net, 2003.

10.Bc4 b6 11.0-0 Bb7 12.d4 Nbd7 13.Nbd2 Nd5 14.Qb3 (14.e4 Nf4+=) 14...Ne7 (14...Qf6!?=) 15.Bb2 Bd5 (15...Nf6 16.Ra1+-) 16.e4 Bc4 17.Nc4 Ng6 18.Nd6 (18.Ra1 Qc8+-) 18...cd6 19.Rc1 (19.Ba3!?+-) 19...Nf6+= 20.Qd3 (20.Qe3 Qd7=) 20...d5= 21.ed5 (21.e5 Ne4=) 21...Nd5 (21...Qd5 22.g3=) 22.Ba3 Re8 23.Rc6 Ngf4 24.Qc2 (24.Qd1 Ng6=) 24...Qa8=+ 25.Bb2? (25.Qb3 Rc8 26.Rc8 Qc8=+) 25...h6?? (25...Nb4 26.Qe4 Nc6 27.bc6-+) 26.g3?? (26.Qb3 Ng6=) 26...Ng6?? (better 26...Nb4!? 27.Qe4 Nc6 28.bc6 Nd5-+) 27.Nd2? (27.Qe2!?=) 27...Nge7 (27...Nb4 28.Qc4 Nc6 29.bc6-+) 28.Rc4-/+ Qa5 29.Qb3?? (better 29.Nf3-/+) 29…Qd2-+ 0–1. GuestMMDC – GuestMBLS, freechess.org, 2019.

10.Bc4= c6 11.0-0 (11.Nc3 e5=) 11...cb5 12.Bb5 Bd7 13.Bd7 (13.Nc3 e5=) 13...Nbd7 14.d4 (14.Qe2 Qe7=) 14...Qb8 (14...b5 15.Qe2 b4 16.e4=) 15.Nbd2 Rc8 16.Qb1 (16.Qb3 Qc7=) 16...b5 17.e4 Bf4 18.e5 (18.Re1 Ng4 19.Nf1 Qb7=) 18...Ne8 (18...Nd5 19.Ne4=+) 19.g3 (19.Bb2 Qb7=+) 19...Bd2=+ 20.Nd2 b4 21.Qb3 (21.f4 Qb6=+) 21...Nc7 22.Ne4 Nd5 23.Bb2 h6 (23...Rc7 24.Nd6=+) 24.Nd6= Rc7 25.Ra1 (25.f4 Qb6=) 25...Ra7 (25...Qd8 26.Rc1=) 26.Rc1 Rc7 27.Rd1 (27.Qf3 N7b6=) 27...Ra7 (27...Qd8 28.Rc1=) 28.f4 (28.Rc1 N7b6=) 28...N7b6 29.f5 Na4 (29...ef5 30.Nf5 Qc8 31.Nd6=) 30.Rc1 (30.fe6 fe6 31.Rc1 Nab6+=) 30...Nab6 31.fe6 fe6 32.Nb5 (32.Qd3!?+=) 32...Rf7= 33.Nd6 (33.Qc2 Qf8=) 33...Rc7 (33...Rf8 34.Qd3=) 34.Rf1 Qa8 (34...Qd8 35.Rf2=) 35.Nb5 (35.Qd3 Na4 36.Ba1 Nac3=) 35...Rf7 36.Rf7 Kf7 37.Nd6 Ke7 (37...Kg8 38.h3=) 38.Qf3 (38.Qc2 Qa4 39.Qf2 Qd1 40.Kg2 Qc2 41.Qc2 Ne3 42.Kf3 Nc2=) 38...Qf8= 39.Qd3 (39.Qe2 Na4=) 39...Qa8 (39...Nc8 40.Nb7=) 40.Qg6 (40.Qf1 Qf8 41.Qb5 Qd8+=) 40...Qf8= 41.Bc1 Nc3 42.Qd3 (42.Qg4 Nbd5=) 42...Nbd5 43.Qa6 (43.Bd2 Kd7=) 43...Qb8 (43...Qd8 44.Bb2=) 44.Kg2 (44.Bd2 Qd8=) 44...Kd7 45.Qf1 Qa8 (45...Qg8 46.Qf3=) 46.Kh3 Qg8 47.Bd2 g5 48.Qa6 Qb8 49.Qd3 b3 50.Bc3 Nc3 51.Nc4 b2 (51...Qb4 52.Kg4-/+) 52.Nd2 b1Q (52...Nd5 53.Qh7 Ne7 54.Qh6-/+) 53.Nb1 Nb1 (53...Qb1 54.Qc3 Qf1 55.Kg4 Qe2 56.Kh3=) 54.Qh7= Kc8 (54...Kc6 55.Qe4 Kc7 56.Qh7 Kc6 57.Qe4 Kd7 58.Qh7 Kc6=) 55.Qc2 (better 55.Qh6!? Qb6 56.Qg5+=) 55...Kd8=+ 56.Qg6 Qb5 (56...Qb4 57.Qe6 Qd4 58.Qh6 Qd7 59.e6+=) 57.Qf6 (57.Qh6 Qf1 58.Kg4 Qf5 59.Kh5 g4 60.Qg5 Qg5 61.Kg5 Nc3=) 57...Kc7=+ 58.Qe7 ½–½. Jalo,Pentti – Maeki,Kalevi, Vantaa We Remi, 1997.

10.Bc4 Nbd7 11.0-0 b6 (11...e5 12.d3=) 12.Nc3 Bb7 13.d4 Qe7 14.Re1 (14.Qe2 Ra8=) 14...Ra8 (14...c5 15.e4 cd4 16.Qd4=) 15.e4 Bb4 16.Nd2 (16.d5!?=) 16...Qd6=+ 17.e5? (better is 17.Qc2 Qd4 18.Bb2=+) 17...Qd4-+ 18.Nce4 Ra1! 19.Qa1 Qa1 20.Ra1 (20.Nf6 gf6 21.Ra1 Bd2-+) 20...Ne4 (21.Ne4 Be4-+; 20...Be4?! 21.ef6 Bd2 22.Rd1 Nf6 23.Rd2=) 0–1. Young,L – DeFotis, North Central Open, 1969.

10.Bc4 Nbd7 11.Qb3 Nb6 (11...e5 12.d3=+) 12.Be2 Bd7 (12...Re8 13.Be5=+) 13.0-0 Qe7 14.d4 (14.Be5 Nbd5=) 14...Kh8 (14...Ra8 15.Nbd2=) 15.Nbd2 Ra8 16.e4 Ra3 (16...Nh5 17.g3=) 17.Qc2+= Nh5 18.g3 Qd8 (18...Be8!?+=) 19.Ne5+- Be5 20.Bh5?? (better 20.de5 g6 21.Rd1+-) 20...Bb5=+ 21.Rb1 (21.Bb2!? Rd3 22.Nf3 Rf3 23.Bf3 Bf1 24.de5-/+) 21...Bd3-/+ 22.Qb2 (22.Qc1!? Bd6 23.Bb2-/+) 22...Ra1-+ (22...Bb1 23.Qa3 Bd6 24.Qb3+-) 23.Ra1 (23.de5 Rb1 24.Nb1 Be4-+) 23...Bd4 (worse 23...Qd4 24.Qd4 Bd4 25.Ra3+=) 24.Qd4?? (better 24.Qc1 Ba1 25.Qa1-+) 24...Qd4 25.Ra8 (25.Ra2 Be4 26.Ne4 Qe4 27.Ra3-+) 25…Na8 0–1. GuestNPTJ – abadjm, freechess.org, 2018.

10.Bc4= Nbd7 11.d3 =+.

10.Bc4 Nbd7 11.d4 Nd5 12.0-0 N7b6 13.Bd3 f5 14.Ne5 f4 15.e4 Nb4 16.Nc4 Nd3 17.Nb6 Nf2 18.Rf2 cb6 19.Nc3 White prepares the advance d5 19...Bb4 20.Ne2 Bd7 21.Qb3 Bd2 22.Qb2? (better is 22.Rf1-/+) 22...Be3-+ 23.d5 Qf6 (better is 23...Qg5 24.Qe5 Ra8-+) 24.Qa2?? (better is 24.Qf6!? gf6 25.de6 Bb5 26.Nc3-+) 24...Qf7 (better is 24...Bf2 25.Kh1 Qg6 26.Nc3-+) 25.Bd4 Bf2 26.Kf2 f3 27.gf3 Qf3 28.Ke1 Bb5 29.Ng3 Qd3 30.Qb2 Rf1! 31.Nf1 Qf1 32.Kd2 Qe2 33.Kc1 Qe1 34.Kc2 Ba4 35.Kd3 ed5 36.Qe2?? Qb1 37.Ke3 Qe4 38.Kf2 Qd4 39.Kg2 Qe4 40.Qe4 de4 41.Kf2 b5 42.Ke3 b4 43.Ke4 Kf7 44.Kd4 b5 45.Kd3 Ke6 46.Kd2 g5 47.Kc1 h5 48.Kb1 g4 49.Kb2 h4 50.Kb1 g3 51.hg3 hg3 52.Kc1 g2 53.Kd2 g1Q 54.Ke2 Ke5 55.Kd2 Kd4 56.Ke2 Qg2 57.Ke1 Qh2 58.Kf1 Ke3 59.Ke1 Qg1 (59...Qe2) 0–1. Jostov,Keylah – Molina,Vicente Andres, 9. LSS No Engine Cup Preliminary, 2009.

10.Bc4 Qe7 11.0-0 Nbd7 12.d4 Nb6 13.Bd3 Bd7 14.e4 Ra8 15.Nc3 e5? (better 15...Bb4+=) 16.de5+- Be5 17.Ne5 Qe5 18.Nd5 Qd6 19.Nf6 gf6 20.Qf3 Kg7 21.Rd1 Ra3 22.e5 fe5 23.Qg3 Kf8 (23...Kf6 24.Bb2 Rb3 25.Qh4 Kg7 26.Qg5 (26.Qh7?! Kf8 27.Bc1 Qf6+-) 26...Kf8 27.Be5 Qd3 28.Qd8 Be8 29.Rd3 (29.Qd3?! Rd3 30.Rd3 Bb5 31.Rd8 Ke7 32.Bc7 Nd7+-) 29...Rb1 30.Rd1 Rd1 31.Qd1+-) 24.Be5 Qh6 (24...Qe7 25.Qg7 Ke8 26.Bc7 Rd3 27.Qh8 Qf8 28.Qf8 Kf8 29.Rd3 Bb5 30.Rd8 (30.Bb6?! Bd3 31.f4 f5=) 30...Ke7 31.Bb6+-) 25.Bd4 (25.Bd4 Rd3 26.Qd3+-) 1–0. DEFFM – GuestPJRT, freechess.org, 2018.

10.Bc4 Be7 11.0-0 Nbd7 12.d3 Nb6 13.Bd4 Nc4 14.dc4 b6 (14...c5 15.bc6 bc6 16.Qc2=) 15.Qc2 Bb7 16.Nbd2 Qd6 17.Ne5 (17.Ra1 Rd8+=) 17...Ra8 18.f3 Ne8 (18...Qd8 19.Rd1=) 19.Ne4 White plans c5 19...Qd8 20.c5 bc5 (20...f6 21.c6 Bc8 22.Nd3=) 21.Nc5+= Bd5 (21...Bc5 22.Qc5 Nd6 23.Rb1=) 22.e4 Ba2?? (better 22...Ra2 23.Qc3 Ba8+=) 23.Nc6+- Qd6 (23...Bc5 24.Nd8 Bd4 25.Kh1 Rd8+-) 24.e5 (24.e5 Qc6 25.bc6+-; 24.Ne7?! Qe7 25.Ra1 e5+/-) 1-0. Pereira – Vintins, internet, 2020.

10.Qb3 dc4 11.Bc4 cb5 12.Bb5 Nc6 13.Bc6 (13.0-0 Bd7=) 13...bc6 14.0-0 c5 15.Rc1 Qe7 (15...Re8 16.Bf6 Qf6 17.Nc3=) 16.Be5 Ba6 (16...Be5!? 17.Ne5 Bb7=) 17.Qb6+- Exerts pressure on the isolated pawn 17...Be5 18.Ne5 Qb7 (18...Bb7 19.Rc5 Nd5 20.Qb5+-) 19.Qb7 Bb7 20.Rc5 Ra8 21.f3 Rc8 (21...Ne8 22.Nc3+-) 22.Rc8 Bc8 23.d4 g6 (23...Nd7 24.Nd7 Bd7 25.Nd2+-) 24.Nc3+- Bb7 (24...Nd5 25.Nd5 ed5 26.e4+-) 25.Kf2 Ne8 26.Ne4 (26.e4 g5+-) 26...f6 27.Nd7 Kf7? (better 27...Be4 28.fe4 f5+-) 28.Ndf6! Nf6 29.Nd6 Ke7 30.Nb7 Nd5 31.g3 1–0. Galindo,Gustavo – Salazar,Marco A, Mayores Absoluto Valla, 2011.

10.Qb3 Nbd7 11.d4 dc4 12.Bc4 Nb6 13.Bd3 Nbd5 14.0-0 cb5 15.e4 Nf4 16.e5 (worse 16.Qb5 Bd7 (worse 16...Nd3 17.Qd3 Nd7 18.Bb2=) 17.Qb3 Qa5=+) 16...Nd3 (16...Qa5 A) 17.ed6?! A1) 17...Qa1?? 18.Na3 (18.Qb5 Bd7 19.Qb3 Ba4-/+; 18.Bb5?! Qa5=) 18...Qf1 19.Bf1+-; A2) 17...Nd3 18.Qd3 Qa1=; B) 17.Bb2 Qb4 18.Bc2+-) 17.Qd3+- 1–0. GuestFQTS – GuestLKXC, freechess.org, 2018.

10.Qb3 Nbd7 11.d4 c5 =.

10.Qb3 Nbd7 11.Be2 e5 12.0-0 dc4 (12...e4 13.Nd4=+) 13.Bc4 c5 (13...cb5 14.Qb5 e4 15.Ng5=+) 14.Ng5 (14.d3 Qe7=) 14...Qe7=+ 15.Nc3 (15.d3 Nb6=+) 15...Nb6 16.Nce4 (16.Bd3 h6 17.Nge4 Be6 18.Nf6 Qf6=) 16...Nc4 17.Qc4 Ne4 18.Ne4 Be6 19.Qc3 f6 20.b6 (20.Nd6 Qd6 21.d4 cd4 22.ed4 Qd4 23.Qd4 ed4 24.Bd4 Bc4=) 20...Rc8 21.Qa3 (21.d3 c4=+) 21...Qd8 (21...f5 22.Nd6 Qd6 23.d3=+) 22.Nd6 Qd6 23.Qa7 Bc4 24.Qb7 (better is 24.Rd1!?-/+) 24...Rd8-+ 25.Rd1 Be2 26.Rb1 (26.Be5 fe5 27.Ra1 c4-/+) 26...Qd3 27.Rb2 Qa3 28.Qa7 Ba6 29.Rb1 Qd3 30.Rd1 Qc2 (31.Qa6 Qd1 32.Qf1 Qf1 33.Kf1 Rd2-+) 0–1. Vodep – Janetschek, 1967.

10.Qc2 dc4 11.Bc4 cb5 12.Bb5 =.

10.Qc2 c5 11.d4 b6 12.Bd3 (12.dc5 Bc5 13.cd5 Nd5+=) 12...Bb7 (12...dc4 13.Qc4 Bb7 14.dc5 Bc5 15.Nbd2=) 13.Ng5 (13.dc5 Bc5 14.cd5 Bb4 15.Nbd2 Kh8+/–) 13...g6 (13...h6 14.Nf3 Nbd7=+) 14.h4 (14.0-0 Ng4 15.h4 h6=+) 14...Re8 (better is 14...dc4!? 15.Bc4 Bg2 16.dc5 Bh1 17.cd6 Nbd7-/+) 15.h5 (15.dc5 Bc5 16.cd5 Nd5=) 15...Nh5 16.Rh5 gh5 17.Bh7 Kf8 18.Nf7 Re7?? (18...Kf7 19.Qg6 A classical mating theme) 19.Nd8 dc4 (19...cd4 20.Nb7 Rb7 21.cd5+-) 20.Ne6! Re6 21.Qf5 Ke7 22.dc5 Bc5 23.Bg7 Nd7 24.Nc3 Bb4 25.Kf1 Bc3 26.Bc3 Nc5 27.Bb4 Be4 28.Bc5 bc5 29.Qc5 Kf7 30.Be4 Re4 31.Qd5 (31...Re6 32.Qh5 Kf6 33.Qh4 Kf7 34.Qc4+-; 31.Qf5 Kg7 32.Qe4 c3+-) 1–0. mtr – torogi, Caissa's Web, 2001.

10.Qc2 c5 11.d4 Nbd7 12.Bd3 =.

10.Qc2 Re8 11.c5 (11.Bf6 Qf6 12.c5 Bf8=) 11...Bf8 (11...Be7 12.Bd3=) 12.Bd3 (12.Bf6 Qf6 13.d4=) 12...e5 (better 12...Nbd7!? 13.0-0 e5=+) 13.Be5 (13.Ne5 cb5 14.Bb5 Bd7 15.Nd7 Nfd7+-) 13...Ng4?? (better 13...Bg4 14.Ng5 Ne4 15.Be4 de4+=) 14.Bb8+- 1–0. DEFFM – GuestBNQZ, freechess.org, 2018.

10.Nc3 e5 11.bc6 bc6!? 12.d4 ed4 13.Nd4 Qa5 =.

10.Nc3 e5 11.bc6 e4 12.cb7+= Bg4 (better 12...Bb7!? 13.Nd4 dc4=) 13.h3+- Bh5 14.g4 ef3 15.gh5 d4 16.Qf3 (16.Nb5!? de3 17.de3+-) 16...Qa5 17.Qd1 (better 17.Na2 Qa2 18.Bd4+=) 17...de3?? (17...dc3!? 18.Bc3 Qd8=) 18.fe3 (better 18.de3 Bb4 19.Qc1+-) 18...Bg3= 19.Ke2 Qh5 20.Kd3 Qf5 21.e4 (better 21.Ke2 Qf2 22.Kd3 Qf5 23.e4 Rd8 24.Kc2 Ne4 25.Qg4 Rd2 26.Kc1 Qg4 27.hg4+=) 21...Ne4 22.Ne4 Rd8 23.Bd4 Nc6 24.Bg2?? (24.Qg4 Ne5 25.Kc3 Ng4 26.Ng3 Qf3 27.Kc2-+) 24...Rd4-+ (24...Nd4 25.Qg4 Ne6 26.Ke2 Nd4 27.Kd1-+) 25.Kc3 Qa5 (25...Re4 26.Be4 Qe4 27.d4-+) 26.Kb2 Be5 Do you see the mate threat? 27.Nc3 Rc4 (better 27...Qb6 28.Kc1 Rc4-/+ (worse 28...Qb7 29.Re1+=)) 28.Qb3=+ Rb4 29.Bc6 Rb3 30.Kb3 Qb6 31.Kc2 Qc6 32.Rb1 Threatening mate... how? 32...Bb8 33.d4 Qg2 34.Kd3 Qh3 35.Kc4 h5 36.Rb5 Qf1 37.Kc5 h4 38.d5 (38.Ra5 Qc1 39.Kc4 g5-+) 38...h3 39.d6 Qd3 (39...h2 40.Rb1 Ba7 41.Kb4 Qb1 42.Nb1-+) 40.Kb4 (40.Nd5 Bd6! 41.Kc6 Qc4 42.Kd6 Qb5 43.Ne7 Kf8-+) 40…Qd6 (40...Qd6 41.Kc4 h2-+) 0–1. Bulcourf,Carlos (2295) – Abramson,Horacio (2250), Buenos Aires BCA op, 1988.

10.Nc3 e5 11.d4 e4 12.Nd2 =+.

10.Nc3 e5 11.d4 e4 12.Ne5 =+.

10.bc6 bc6 11.Qc2 Nbd7 12.d4 Ba6 13.Nbd2 Qa8 14.Bc3 c5 15.dc5 Bc5 16.Be2 dc4 17.0-0 Be7 (17...Rc8 18.Nc4 Bc4 19.Bc4=) 18.Ra1 Qc8 19.Bd4 Increasing the pressure on the isolated pawn on c4 19...Qc6 20.Nc4 Rc8 21.Nfd2 (21.Rc1 Ba3 22.Na3 Qc2 23.Rc2 Rc2 24.Nc2 Be2 25.Bf6 Bf3=) 21...e5 22.Bb2 Qe6 23.Qa4 Bb7 24.Rc1 Nc5 25.Qd1 Nfd7 26.Bf3 Bf3 27.Nf3 Pawn e5, live or die! (worse 27.Qf3 Nd3 28.Rb1 Rc4 29.Nc4 Qc4-+) 27...f6 (27...e4 28.Nd4 Qg6 29.Rc2=+) 28.Qc2 Rb8 (28...e4 29.Nd4 Qd5 30.Nd2=) 29.Ra1 Qd5 30.Rd1 Qe6 31.e4 Rc8 32.Ne3 Nb6 33.Nf5 Bf8 34.Nd2 Nca4 35.Qb1 Rd8 36.Ba1 Qd7 37.Qb3 Qf7 38.Qc2 ½–½. Cottarelli,Franco – Feilmayr,Erwin, corr ICCF TT, 2004.

10.bc6 bc6 11.cd5 cd5 12.Be2 Nc6 13.Nd4 Nd4 14.Bd4 e5 15.Bc3 Be6 16.d3 Qc7 17.0-0 Rb8 18.Bd2 Nd7 19.Qa4 Nc5 20.Nc3?? (better is 20.Qc2-/+) 20…Na4-+ (20...Na4 21.Na4 Qc2-+) 0–1. Valpa – Pirco, playchess.de, 2004.

10.cd5 ed5 11.Be2 Bf5 12.0-0 c5 13.Be5 Be5 14.Ne5 Qb6 15.Nc3 Nbd7 16.Nd7 Bd7 Attacking the isolated pawn on b5 17.Qb1 d4 18.Nd1 Re8 19.h3 Ne4 20.Qb2 (20.Qa2!?-/+) 20...Qa5-+ 21.d3 (21.Kh2 Nd2 22.Rh1 Bf5-+) 21...Nd2 (21...Qb5 22.de4 d3 23.Bf3+/–) 22.b6 (22.Re1 Nc4! 23.dc4 Qe1 24.Kh2 de3 25.fe3 Bf5-+) 22...Re6 23.e4 Rb6 24.Qc2 Ra6 25.Nb2 Nf1 26.Kf1 Qc3 (26...Qc3 27.Qb1 Ba4-+) 0–1. Hal1958 – Reddog, playchess.de, 2005.

10.Be2 Qa5 11.Bf6 gf6 12.cd5 cd5 (worse 12...cb5 13.Nc3+/-) 13.0-0 Bd7 Exerts pressure on the isolated pawn 14.Nc3 Bb4 15.Qb3 (15.Qb1+=) 15...Bc3 (15...Rc8!?=) 16.dc3+/- Rc8 17.c4 dc4 18.Bc4 Be8 (18...Kg7 19.Qd3+/-) 19.Nd4 Qc7 20.Be2 (20.Rc1 Bd7+/-) 20...Nd7 21.h3 (21.Rd1 Nc5 22.Qb4 b6+/-) 21...Nc5 22.Qb2 (22.Qb4 Qe5+/-) 22...Ne4 23.Bf3 (23.Bd3 f5+/-) 23...Ng5 24.Be2 Ne4 25.Bd3 Qc3 (25...f5 26.Qe2+/-) 26.Qe2 Nc5 27.Qg4 Kh8 28.Bb1 Nd3?? (better 28...Ra8+/-) 29.Qe4+- f5 30.Qd3 Qd3 31.Bd3 Rc3 32.Be2 Kg7 33.Rb1 (33.Bf3 b6+-) 33...Kf6 34.Kf1 e5 35.Nf3 Rc2 (35...Bd7 36.Ke1+-) 36.Ne1 Ra2 37.f3 (37.Rd1 Ke7+-) 37...b6 38.Nd3 Ke6 (38...Bd7 39.f4 ef4 40.Nf4+-) 39.Kf2 (better 39.Nf4!? ef4 40.Bc4 Kd6 41.Ba2 fe3+-) 39...f6 (39...Ra5 40.Rb3+-) 40.f4 (40.Nb4 Ra4+-) 40...Kd6 (40...Bh5 41.Rb2 Be2 42.Ra2 Bd3 43.Ra6+-) 41.Rb2 (41.Nb4 Re2 42.Ke2 Bb5 43.Nd3 Kc6+-) 41...Rb2 (41...Bf7 42.Ra2 Ba2 43.Nb2+-) 42.Nb2 Kc5 (42...Kc7 43.Bc4+-) 43.Na4 (43.Na4 Kb4 44.Nb6+-) 1-0. Osmak,Iulija (2425) - Purtseladze,M (2270), Women's Speed Chess Q4 KO, 2021.

10.Be2 cb5 11.cb5 Nbd7 12.0-0 e5 13.d4 e4 14.Nfd2 Re8 15.Bb2 Nf8 16.Ba3 Bb8 17.Re1 g5 (17...Ne6!?=) 18.Qb3 Ng6 19.Nc3 h5 (19...Be6 20.b6+=) 20.b6+/– Be6 21.Bb5 Qb6 22.Be8 Qb3 23.Bf7! Kf7 (23...Bf7 24.Nb3) 24.Nb3 b6 25.Nd2 Kg7 26.Rb1 Bc7 27.Na4 Nd7 28.Rb5 Bf7 (28...g4!?+/–) 29.Nb1+- Be8 30.Nbc3 Nf6 31.Rb1 (31.Rb6?! Bb6 32.Nb6 Bc6+/–) 31...Ba4 32.Na4 g4 33.Nb6 Kf7 34.Na4 Ne8 35.Rb5 Ke6 36.Nc5 Kf5 (36...Kf7 37.Na6 Ke6 38.Rb7+- (38.Nc7?! Nc7 39.Rb6 Kf5+-)) 37.Na6 Ke6 38.Nc7 Nc7 39.Rb6 Kf7 (39...Kf5 40.Rd6 Nf8+-) 40.Rb7 (40...Ke6 41.Rc7+-) 1–0. pierre (1990) – kostovist, internet, 2006.

10.Be2 dc4 11.Bc4 cb5 12.Bb5 Qa5 13.Nc3 Bb4 (13...Bd7 14.Qb1=) 14.Be2 Rd8 15.Qc1 (15.0-0 Nc6=) 15...b6 (15...e5 16.0-0=+) 16.0-0= Nc6 (16...Ba6 17.Qb1=) 17.Qc2 (17.Nb5 Bb7 18.Bf6 gf6+=) 17...Bb7= 18.Bb2 Bc3 (better 18...Bd6!?=) 19.Bc3+- (19.Qc3?! Qc3 20.Bc3 Nd5=; 19.dc3?! Ne5 20.Rd1 Ra8 21.Ne5 Qe5=) 19...Qh5 (19...Qa3 20.Bf6 gf6 21.d4+-) 20.Bf6 gf6 21.Nd4?? (better 21.Rb1+-) 21...Nd4-/+ 22.Bh5? (better 22.ed4 Qg5 23.f3 Rd4 24.Bd3-/+) 22...Nc2-+ 23.Rc1 (23.d4 Be4-+) 23...Rd2 24.Rb1 Rd6 25.Rc1 (25.Be2 h6-+) 25...Be4 26.f3 Bg6 (better 26...Bd3-+) 27.Bg6 Ne3 (27...fg6?! 28.Rc2 Kg7 29.Rc7 Kh6 30.h4-/+; 27...hg6?! 28.Rc2 f5 29.Kf2-/+) 28.Be4 Rd1 (28...f5 29.Bb7-+) 29.Rd1 Nd1 30.Kf1 b5 31.Ke2 Nc3 32.Kd2?? (better 32.Kd3 Ne4 33.Ke4-+) 32...Ne4 33.fe4 Kg7 34.Kc3 f5 (34...Kg6!? 35.g3 f5 36.Kd3 fe4 37.Ke4-+) 35.ef5 ef5 (better 35...e5 36.g4 Kf6-+) 36.Kb4 Kf6 37.Kb5 Ke5 38.Kc4 Ke4 39.Kc5 f6 (better 39...h5 40.h4 Kf4-+) 40.Kd6= f4 41.Ke6 f5 42.Kf6 h6 43.Kg6 f3 44.gf3 Kf3 45.Kf5 h5 46.Kg5 Kg2?? (better 46...Ke4=) 47.h4+- Kh3 48.Kh5 Kg3 49.Kg5 Kh3 50.h5 (50.h5 Kh2 51.Kf4 Kg1 52.h6 Kf2 53.h7 Ke2 54.Ke4 Kf2 55.h8Q Kg3 56.Qh1 Kg4 57.Qg1 Kh4 58.Kf4 Kh5 59.Qg5) 1–0. GuestNGZX – mius, freechess.org, 2017.

10.Be2 dc4 11.Bc4 Bd7 12.Nc3 +=.

10.Be2 Nbd7 11.0-0 e5 (11...dc4 12.bc6 bc6 13.Bc4=) 12.bc6 (12.c5 Bc5 13.bc6 bc6 14.Ne5 Ne5 15.Be5 Bd6 16.Bd6 Qd6=) 12...bc6+= 13.cd5 cd5 14.d4 (14.Nc3 Qe7=) 14...e4 15.Ne5 Qc7 (15...Re8 16.Bb5+=) 16.Qc1 Qb8 (16...Qa7 17.Nc3 Ne5+= (worse is 17...Be5 18.de5 Ne5 19.Ne4+=)) 17.h3 (better is 17.Qb2!?+=) 17...Ne5-/+ (worse is 17...Be5 18.de5 Ne5 19.Qb2 Qb2 20.Bb2+=) 18.de5 Be5 19.Be5 Qe5 20.Qc3 Qg5 21.Kh1 Be6 22.Rc1 (22.Qd4 Rc8-/+) 22...h6 (22...Qf5 23.Kg1-/+) 23.Qd4 Rd8 (23...Ra8 24.Rc7-/+) 24.Nd2 Ne8 (24...Ra8 25.Rb1-/+) 25.Nb3 (25.Bb5 Nd6 26.Bc6 Rc8-/+) 25...Nd6 (25...Ra8 26.Ra1 Rb8 27.Nc5-/+) 26.Nd2 (26.Nc5 Qe7-/+) 26...Nf5 27.Qb6 Ra8 28.Qb2 Qh4 29.Kg1 d4! 30.Ne4 (30.ed4 Rd8 Decoy) 30...Ra2 (better is 30...de3 31.Bf3 ef2 32.Qf2 Qf4-/+) 31.Qb8= Kh7 32.Bf3 (32.Bd3!? de3 33.fe3=) 32...de3-/+ 33.fe3 Bd5 (33...Ra3!?+=) 34.Qb1 (34.Nf6 Qf6 35.Bd5 Rd2=) 34...g6 (34...Be4 35.Qe4 Qf2 36.Kh1 Ra5=) 35.Nf6 (35.Rd1 Ra5 36.Rd5 Rd5 37.Qb7+=) 35...Qf6-/+ 36.Bd5 Ra7 (36...Rd2!? 37.Qb3 Qe5-/+) 37.Rf1 Qe5 (37...Qg5 38.Qb3+=) 38.e4 Qd4 (38...Ng3 39.Rf7 Rf7 40.Bf7 Ne4 41.Qb7 Qd4 42.Kh2=) 39.Kh2 Qe5 40.Kg1 ½–½. mr5reasons1 (1680) – zakthegreat (1840), gameknot.com, 2013.

10.Be5 =+.

10.Ne5 Nbd7 11.Nd7 Qd7 12.Bf6 gf6 13.Nc3 +=.

10.Ne5 Nbd7 11.Nd7 Bd7 12.f3 (12.cd5 ed5 13.Bd3 Ng4=+) 12...dc4-/+ 13.bc6 Bc6 14.Bc4 Nd7 15.0-0 (15.g3 b5 16.Be2 Nb6-/+) 15...Qc7 (15...Bh2!? 16.Kh2 Qh4 17.Kg1 Qc4-/+) 16.f4=+ Bg2 17.Qg4 g6 18.Qg2 Qc4 19.Qb7 Rd8 (19...Nc5 20.Qb6 Qd5 21.Qb2=+) 20.Nc3 Bc7 (20...Qd3 21.Ne4=+) 21.Qg2 (21.d3 Qc5 22.d4 Qa5=) 21...Qd3=+ 22.Qc6 (22.Ne4 Ba5=+) 22...Bb6 (22...Ba5 23.Qa4 Bc3 24.Bc3-/+) 23.Ne4 Ba5 24.Rd1 (24.Bd4 Bb4= (24...Bd2? 25.Nd2 Qd2 26.Qc7+-)) 24...Bb4 (24...Qe2 25.Nf2=+) 25.Qc7= Be7 26.Qc3 Qc3 27.dc3 Nb6 28.Rd8 Bd8 29.Nd2 Nd5=+ 30.Kf2 Bf6 31.Nb1= Kg7 32.Kf3 Kh6 33.e4 Nb6 34.Nd2 Kh5 35.e5+= Be7 36.c4 Nd7 37.Bd4 Nb8 38.Ne4 Nc6 ½–½. Kleinke,Uwe – Magdeburg,W, corr DDR–ch I726, 1979.

10.Ne5 Nbd7 11.f4 Ne4 12.Nf3 Nb6 =+.

10.Ne5 Ne4 11.Nf3 =+.

10.Bf6 gf6 11.bc6 bc6 12.d4 +=.

10.Bf6 Qf6 11.Nc3 Rd8 =+.

10.Bf6 Qf6 11.d4 dc4 12.Bc4 Rd8 13.Qc2 =.

10.Bf6 Qf6 11.d4 Nd7 12.c5= Bc7 13.b6 Bb8 14.g3 (14.Be2 e5=) 14...e5 15.h4? (better is 15.Be2=+) 15...ed4-+ 16.ed4 Re8 (17.Kd2 Qh6 18.Kc2 Nf6-/+) 0–1. Landgraf,M – Strand,T, corr SOK–90–58, 1990.

11.Bb2 A) 11...Nc5 A1) 12.d4 Nce4 13.c5 Bb8 14.Bd3 Bd7 15.Nc3 cb5 16.Ne4 Ne4 17.Be4 de4 18.Qe4 Bc6; A2) 12.bc6 bc6 13.Nc3 Ba6 14.cd5 Bf1 15.Rf1 ed5 16.Na4 Nfe4 17.Nc5 Bc5 18.Ne5 Bb4; A3) 12.Bf6 Qf6 (12...gf6 13.Nc3 Qa5 14.Be2 Qa1 15.Qd1 Qd1 16.Kd1 Ne4 17.Rf1 Nc3 18.dc3 Bd7) 13.Nc3 cb5 14.Nb5 Qa1 15.Qd1 Qd1 16.Kd1 Be7 17.Ke1 Bd7 18.Nbd4 Ra8; A4) 12.Nc3 Qa5 (12...e5 13.bc6 bc6 14.cd5 e4 15.Nd4 cd5 16.Ncb5 Be7 17.Nc6 Qd7 18.Ne7 Qe7; 12...Bd7 13.d4 Nce4 14.c5 Bb8 15.b6 Nc3 16.Bc3 Ne4 17.Bd3 f5 18.0-0 Qf6) 13.Be2 Bd7 14.cd5 cd5 15.0-0 Rc8 16.Ra1 Qc7 17.Na4 Nce4 18.Qc7 Rc7; B) 11...Ne4 B1) 12.Be2 Ndf6 (12...Re8 13.Nc3 Ndf6 14.0-0 Nc3 15.Qc3 e5 16.bc6 bc6 17.Ra1 Bf5 18.cd5 cd5) 13.Nc3 Bd7 14.bc6 Bc6 15.cd5 ed5 16.0-0 Qe7 17.Nd4 Bd7 18.Ra1 Rc8; B2) 12.bc6 bc6 13.Nc3 f5 14.Be2 Ba6 15.Nd4 Ndc5 16.Ne4 fe4 17.0-0 Qc7 18.f4 e5; B3) 12.h4 Ndc5 (12...f5 13.Nc3 Ndf6 14.Ne4 Ne4 15.Bd3 cb5 16.cd5 ed5 17.h5 Qa5 18.h6 g6; 12...Qa5 13.Nc3 f5 14.h5 h6 15.Be2 Ndf6 16.0-0 Nh5 17.Ra1 Qb6 18.cd5 cd5; 12...f6 13.Nc3 Nc3 14.Bc3 Nc5 15.h5 Bd7 16.h6 g6 17.bc6 Bc6 18.Nd4 Qe7; 12...Bb4 13.bc6 bc6 14.cd5 cd5 15.Bg7 Kg7 16.Qb2 Ndf6 17.Qb4 Ng4 18.Bb5 Bd7; 12...Qc7 13.Nc3 f5 14.h5 h6 15.Be2 Ndf6 16.bc6 bc6 17.Ne4 Ne4 18.0-0 Bb7) 13.d4 Qa5 14.Nc3 Nc3 15.Bc3 Qa4 16.Qa4 Na4 17.Kd2 c5 18.Be2 dc4; B4) 12.cd5 cd5 (12...ed5 13.Nc3 Ng5 14.Nd4 c5 15.h4 cd4 16.hg5 g6 17.Nd5 Qg5 18.Qe4 de3) 13.Nc3 f5 14.Be2 Ndf6 15.0-0 Bd7 16.Ne4 de4 17.Ne5 Qb8 18.Nd7 Nd7; B5) 12.Nc3 Ndf6 (12...f5 13.Nd4 Ne5 14.bc6 bc6 15.cd5 cd5 16.Ndb5 Bb8 17.Ba3 Rf7 18.Be2 Ba6; 12...Ng5 13.bc6 Nf3 14.gf3 bc6 15.f4 g6 16.Na4 Qe7 17.Rg1 Bb7 18.Be2 Qh4) 13.h4 Nc3 14.Qc3 Qb6 15.Bd3 cb5 16.Ng5 e5 17.cd5 Bd7 18.Qc2 g6; C) 11...g6 12.Nc3 (12.bc6 bc6 13.cd5 cd5 14.Nc3 Bb7 15.Nb5 Bb4 16.Bd3 Qa5 17.0-0 Rc8 18.Bc3 Ne4; 12.cd5 cd5 13.Be2 Nc5 14.0-0 b6 15.d4 Nce4 16.Ne5 Bd7 17.f3 Ng5 18.h4 Nf3) 12...Qc7 (12...Ne5 13.Ne5 Be5 14.Bd3 Bd6 15.cd5 cd5 16.0-0 Bd7 17.Ra1 Qc7 18.g3 Rc8; 12...Qe7 13.Be2 Nc5 14.d4 Nce4 15.c5 Bb8 16.bc6 bc6 17.0-0 Bc7 18.Ra1 Nc3) 13.Be2 e5 14.bc6 bc6 15.cd5 cd5 16.h3 Bb7 17.Qd1 Qb6 18.Na4 Qb4; D) 11...h6 D1) 12.bc6 bc6 13.cd5 cd5 14.Nc3 Qb6 15.Nb5 Bc5 16.Nc3 Bb4 17.Na4 Qa5 18.Bc3 Ne4; D2) 12.Be2 Nc5 (12...Ne4 13.Nc3 Ndf6 14.0-0 Qc7 15.bc6 bc6 16.Ne4 Ne4 17.Ra1 Bd7 18.d3 Ng5; 12...cb5 13.cd5 Nd5 14.Bb5 N7f6 15.Nc3 Qb6 16.Nd5 ed5 17.Bd3 Ne4 18.0-0 Bg4; 12...dc4 13.bc6 bc6 14.Na3 c3 15.Qc3 Nc5 16.Nc4 Na4 17.Qd3 Nb2 18.Qd6 Nc4; 12...Qc7 13.Nc3 Nb6 14.bc6 bc6 15.cd5 cd5 16.Qb3 Bd7 17.Nb5 Bb5 18.Bb5 Nbd7; 12...e5 13.Nc3 e4 14.Nd4 Ne5 15.bc6 bc6 16.cd5 cd5 17.0-0 Bg4 18.Bg4 Neg4) 13.Nc3 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 cd5 17.h3 Qb6 18.Ncb5 Nd3; D3) 12.cd5 cd5 13.Be2 Nc5 14.0-0 Bd7 15.Ne5 Qe7 16.Bd4 Nfe4 17.f3 Nf6 18.Rc1 Rc8; D4) 12.Nc3 Nb6 (12...Qc7 13.Be2 Nb6 14.bc6 bc6 15.cd5 cd5 16.Nd4 Bd7 17.Qb3 Nc4 18.Ncb5 Qc5; 12...Qe7 13.bc6 bc6 14.cd5 cd5 15.Nb5 Bb4 16.Be2 Ba6 17.0-0 Ne4 18.Ra1 Rc8; 12...c5 13.Be2 dc4 14.Bc4 Nb6 15.Be2 e5 16.0-0 Qe7 17.Ne4 Ne4 18.Qe4 f5) 13.bc6 bc6 14.cd5 ed5 15.Bd3 Qe7 16.0-0 Bd7 17.Ne2 Ra8 18.Nf4 c5.

11.Nc3 A) 11...Nc5 A1) 12.Bb2 Qc7 (12...Bd7 13.d4 Nce4 14.c5 Bb8 15.b6 g5 16.Bd3 g4 17.Nd2 Nd2 18.Qd2 e5; 12...Qa5 13.Be2 Qb4 14.bc6 bc6 15.cd5 ed5 16.0-0 Qb3 17.Qb3 Nb3 18.d4 Bg4; 12...e5 13.bc6 bc6 14.cd5 cd5 15.Nb5 e4 16.Nfd4 Be7 17.Nc6 Qd7 18.Ne7 Qe7) 13.d4 Nce4 14.c5 Be7 15.b6 Qb8 16.Bd3 Nc3 17.Bc3 Ne4 18.Be4 de4; A2) 12.Na4 Na4 13.Qa4 Bd7 14.cd5 cd5 15.Bd3 Qa8 16.Qa8 Ra8 17.Ke2 Ne4 18.Be5 f6; A3) 12.d4 Qa5 (12...Nce4 13.c5 Qa5 14.Bb2 Bb8 15.Bd3 cb5 16.0-0 Bd7 17.Ne5 Be5 18.de5 b4) 13.Bb2 Nce4 14.c5 Bc7 15.b6 Bb8 16.Bd3 e5 17.de5 Nd7 18.0-0 Ndc5; A4) 12.Be2 Bd7 (12...Qc7 13.0-0 e5 14.d4 ed4 15.ed4 Nce4 16.Ne4 Ne4 17.c5 Bf4 18.g3 Bh6; 12...h6 13.0-0 e5 14.bc6 bc6 15.d4 ed4 16.Nd4 Bd7 17.cd5 cd5 18.Rb1 Qe7; 12...Qa5 13.0-0 Bd7 14.d4 Nce4 15.c5 Bc7 16.b6 Bb8 17.Bd3 g6 18.Bb2 Nc5; 12...e5 13.bc6 bc6 14.cd5 e4 15.Ng5 cd5 16.Nb5 Ba6 17.Bd4 Bb5 18.Bb5 Nfd7; 12...Qe7 13.0-0 e5 14.bc6 bc6 15.cd5 e4 16.Nd4 cd5 17.Ncb5 Bd7 18.Nd6 Qd6) 13.0-0 cb5 14.Nb5 Bb5 15.cb5 Qe7 16.Bb2 Ra8 17.Ra1 Ra1 18.Ba1 h6; B) 11...Qc7 B1) 12.Bb2 Re8 (12...e5 13.Be2 h6 14.h3 Nb6 15.cd5 cd5 16.0-0 Be6 17.d4 e4 18.Ne5 Ra8; 12...Rd8 13.Be2 Nb6 14.cd5 cd5 15.0-0 Bd7 16.d3 Bb5 17.Rc1 Be8 18.Qd1 Bc5; 12...Nb6 13.bc6 bc6 14.cd5 cd5 15.Qb3 Bd7 16.Nb5 Bb5 17.Bb5 Rb8 18.Bf6 gf6; 12...g6 13.Be2 e5 14.bc6 bc6 15.cd5 cd5 16.h3 Bb7 17.Qb1 Bc6 18.0-0 Rb8; 12...h6 13.Be2 Nb6 14.bc6 bc6 15.cd5 cd5 16.Qb3 Bd7 17.Nd4 Qb8 18.Ndb5 Nc4) 13.Be2 Nb6 14.bc6 bc6 15.cd5 ed5 16.0-0 Be6 17.Ra1 Rb8 18.h3 Nc4; B2) 12.g3 Qa5 (12...e5 13.Be2 e4 14.Nd4 Ne5 15.bc6 bc6 16.cd5 cd5 17.Ndb5 Qa5 18.Qa4 Qa4; 12...Re8 13.Be2 Nb6 14.cd5 cd5 15.0-0 Bd7 16.Bb2 Ra8 17.d3 e5 18.Rc1 h6; 12...Nb6 13.bc6 bc6 14.cd5 ed5 15.Be2 Bg4 16.Ng5 Ra8 17.0-0 g6 18.f3 Bd7; 12...Nc5 13.Be2 Bd7 14.0-0 h6 15.bc6 bc6 16.d4 Nce4 17.c5 Be7 18.Ne4 Ne4; 12...h6 13.Be2 Nb6 14.bc6 bc6 15.Na4 Na4 16.Bf6 gf6 17.Qa4 Bd7 18.0-0 Rb8) 13.Bb2 Qb4 14.Na2 Qa5 15.Nc3 Nc5 16.Be2 Qb4 17.bc6 dc4 18.Nd1 bc6; B3) 12.bc6 bc6 13.Be2 Ba6 14.cd5 Be2 15.Ne2 ed5 16.0-0 Rb8 17.Ned4 c5 18.Nf5 g6; B4) 12.h3 Nc5 (12...e5 13.bc6 bc6 14.cd5 cd5 15.Be2 Bb7 16.Qb2 Bc6 17.Nb5 Bb5 18.Bb5 Qa5; 12...Nb6 13.bc6 bc6 14.cd5 cd5 15.Bd3 Bd7 16.0-0 e5 17.Bf5 e4 18.Nd4 Bh2; 12...h6 13.Be2 Nb6 14.bc6 bc6 15.Na4 Na4 16.Bf6 gf6 17.Qa4 Bb7 18.Qc2 c5; 12...Qa5 13.Bb2 Nc5 14.Be2 Bd7 15.cd5 cd5 16.0-0 Qc7 17.Ra1 Nce4 18.Nd4 Nc3) 13.Bb2 Qa5 14.Be2 Bd7 15.cd5 cd5 16.0-0 Rc8 17.Ra1 Qd8 18.Nd4 Nce4; B5) 12.Be2 Nb6 13.bc6 bc6 14.Na4 Na4 15.Bf6 gf6 16.Qa4 e5 17.Qc2 Be6 18.0-0 Qa5; C) 11...Ne5 C1) 12.bc6 bc6 (12...Qa5 13.Qa4 Qa4 14.Na4 Nf3 15.gf3 bc6 16.Bf6 gf6 17.c5 Bc7 18.Nb6 f5; 12...Nc6 13.Nb5 Ne4 14.Nd6 Qd6 15.d3 Nc5 16.Be2 dc4 17.dc4 e5 18.0-0 Qf6; 12...Nf3 13.gf3 bc6 14.cd5 ed5 15.Na4 Qe7 16.Bd4 Re8 17.Qc6 Bd7 18.Qa6 Rb8) 13.Ne5 Be5 14.d4 Bc7 15.Bb2 e5 16.de5 Be5 17.cd5 cd5 18.Be2 d4; C2) 12.cd5 Nf3 (12...ed5 13.Na4 Nfg4 14.Be5 Ne5 15.Ne5 Be5 16.bc6 bc6 17.Qc6 d4 18.Nb6 Bg4) 13.gf3 cd5 14.Na4 g6 15.Bb2 e5 16.Bd3 Re8 17.h4 d4 18.Rg1 Be6; C3) 12.Na4 Nc4 (12...Nf3 13.gf3 dc4 14.Bc4 Bd7 15.b6 Qe7 16.Rg1 e5 17.Nc3 Ra8 18.Bb2 Be6) 13.Bc4 dc4 14.bc6 b5 15.Bf6 Qf6 16.Nc3 b4 17.Ne4 Qa1 18.Qd1 Qd1; C4) 12.Ne5 Be5 13.d4 Bc7 14.Bd3 dc4 15.Bc4 Qd6 16.f3 Qb4 17.Qb3 c5 18.Kf2 Qb3; D) 11...Qa5 D1) 12.Qa4 Qc7 (12...Qa4 13.Na4 cb5 14.cb5 e5 15.Be2 e4 16.Nd4 Ne5 17.Bc3 Re8 18.Nb6 Bg4) 13.Qa7 Nb6 14.bc6 Nc4 15.Nd4 bc6 16.Qc7 Bc7 17.Nc6 Bd7 18.Nb5 Bc6; D2) 12.Bb2 Nc5=+ (12...Nb6 13.Nd5 ed5 14.Bf6 Nc4 15.Bc4 gf6 16.Bd3 Qa1 17.Qd1 Qd1 18.Kd1 c5; 12...Qb4 13.bc6 bc6 14.cd5 ed5 15.Be2 Nb6 16.0-0 Bd7 17.Rb1 Ra8 18.Nb5 cb5; 12...h6 13.Be2 dc4 14.Bc4 Qb4 15.Na2 Qa5 16.bc6 bc6 17.0-0 Nb6 18.Bf6 gf6; 12...Rd8 13.Be2 Nb6 14.Nd5 ed5 15.c5 Qa2 16.cd6 Rd6 17.Bd3 Nc4 18.Bf6 Qc2; 12...g6 13.Be2 Qb4 14.cd5 ed5 15.0-0 Nc5 16.Nd4 Ne6 17.Ne6 Be6 18.bc6 bc6) 13.Be2 Bd7 14.bc6 bc6 15.0-0 Rb8 16.Ra1 Qb6 17.Ra2 e5 18.Ne5 Be5.

11.Bd3 Qc7 12.Ng5 (12.0-0 cb5 13.cb5 Qc2 14.Bc2 b6=) 12...h6 13.h4 (13.Nf3!?+=) 13...dc4-/+ (13...hg5?! 14.hg5 Rd8 15.gf6 Nf6 16.c5+=) 14.Qc4 cb5 (14...hg5 15.hg5 Rd8 16.Qh4+-) 15.Qc7 Bc7 16.Nf3 b4 17.Nd4 (17.Bb5!? b6-/+) 17...Nc5 18.Bc2 Bd7 19.d3?? (19.Nb3 Nfe4 20.d4 Nb3 21.Bb3-+) 19...Ra8 20.Nb3 b6 (better is 20...Nb3 21.Bf6 Nc5-+ (21...gf6?! 22.Bb3 Bc6 23.Ke2-+)) 21.N1d2 Bb5 22.Ke2 Nd5 (22...Ra2 23.Nc5 Rc2 24.Ncb3-+) 23.Bd4? (23.Nc5 bc5 24.Rc1 Ba4-/+) 23...Nb3 24.Bb3-/+ Nc3 25.Bc3 bc3 26.Nb1? Ra1 27.Rc1 Bd6 28.Bc4?? Bc4 (28...Bc4 29.dc4 c2 30.Rc2 Rb1-+) 0–1. Leon Manas,JF (1710) – Morales Quintero,JM (2095), 31st Torneo Internacional de Argentina, 2010.

11.Bd3 e5 12.cd5 cd5 13.Be2-/+.

11.d4 cb5 12.c5 Be7 13.Nbd2 Qa5 14.Bb2 e5 (14...Nb8 15.Bd3=+) 15.Ne5= Ne5 16.de5 Nd7 17.Bd3 Nc5 18.Bh7 Kh8 19.Bd3 (19.0-0 g6 20.Bg6 fg6 21.Qg6 Qd2 22.Qh6 Kg8 23.Qg6 Kh8 24.Qh6 Kg8 25.Qg6 Kh8=) 19...Be6 (19...Qa2 20.Bb5 Bf5 21.Qf5 Qb2 22.Qb1=) 20.0-0 Rc8 21.Ra1 Qb4 (21...Nd3? 22.Qc8 (22.Ra5?? Rc2 23.Bd4 Rd2 24.Ra8 Kh7-+; 22.Qd3?! Qb6=) 22...Bc8 23.Ra5+-) 22.Ba3 Nd3 23.Qd3 (23.Qc8! Bc8 24.Bb4 Bb4 25.Ra8 Bd2 26.Rc8 Kh7 27.Rd8=) 23...Qa4-/+ 24.h3 b4 25.Bb2 Qc2 26.Qc2 Rc2 27.Bc1 Bf6 1–0. GuestXZPW – GuestXTWF, freechess.org, 2020.

11.Bd4 e5 A) 12.Bb2 e4 (12...Qe7 13.bc6 bc6 14.Nc3 e4 15.Nd4 Ne5 16.cd5 cd5 17.f4 ef3 18.gf3 Bc5; 12...d4 13.bc6 bc6 14.Be2 c5 15.Nh4 Bb7 16.0-0 Qc7 17.Kh1 Rb8 18.f3 Bc6; 12...Qa5 13.Nc3 e4 14.Nd4 Ne5 15.bc6 bc6 16.cd5 cd5 17.Ncb5 Bb8 18.f4 ef3; 12...Re8 13.bc6 bc6 14.cd5 cd5 15.Na3 Bc5 16.Nb5 Qb6 17.Be2 Ba6 18.Nc7 Qc7) 13.bc6 bc6 14.Nd4 Ne5 15.cd5 cd5 16.Nc3 Bd7 17.Ndb5 Qb6 18.Na4 Qb8; B) 12.bc6 bc6 13.Bb2 Qb6 14.Nc3 e4 15.Nd4 Nc5 16.cd5 Nd5 17.Nd5 cd5 18.Be2 Ba6.

11.Bf6 Qf6 (11...Nf6 12.c5 (12.bc6 bc6 13.cd5 cd5 14.Nc3 Qa5 15.Bd3 e5 16.e4 de4 17.Ne4 Ne4 18.Be4 f5; 12.Nc3 Qa5 13.Bd3 dc4 14.Bc4 Bd7 15.Qb2 Ra8 16.0-0 c5 17.Qc2 h6 18.g3 g6; 12.cd5 cd5 13.Nc3 Qa5 14.Bd3 e5 15.Be2 Qa1 16.Bd1 h6 17.0-0 Be6 18.Qa4 Qa4; 12.Bd3 e5 13.c5 Bb8 14.bc6 e4 15.Nd4 ed3 16.Qd3 Be5 17.Nf3 Bc7 18.cb7 Bb7) 12...Bb8 (12...Be7 13.Bd3 Qa5 14.Qc3 Qc3 15.Nc3 Bc5 16.0-0 Bd6 17.bc6 bc6 18.Nd4 Bd7) 13.Nc3=+ e5 14.Qa4 Bd7 15.Be2 Qe7 16.Qb4 Rc8 17.b6 e4 18.Nd4 Be5) 12.d4 (12.Nc3 Nb6=+ (12...Rd8 13.d4 Bb4 14.cd5 Nb6 15.Nd2 cd5 16.Bd3 Bd7 17.Qb3 Bd6 18.0-0 Ra8; 12...Re8 13.Bd3 g6 14.0-0 Rd8 15.Ra1 cb5 16.cb5 Kg7 17.h3 Ne5 18.Nd4 Nd3; 12...Ne5 13.Ne5 Qe5 14.d4 Qg5 15.c5 Be7 16.f4 Qh6 17.Be2 e5 18.0-0 ed4; 12...h6 13.Be2 Nb6 14.0-0 c5 15.Ra1 dc4 16.Ra2 Qe7 17.Ne4 e5 18.Nd6 Qd6; 12...Qg6 13.Qg6 fg6 14.bc6 bc6 15.Nd4 Nb6 16.Nc6 Nc4 17.Nb5 Ne5 18.Nd6 Nc6) 13.bc6 bc6 14.Qb3 Bc7 15.Be2 Qe7 16.d4 dc4 17.Bc4 Nc4 18.Qc4 Qa3; 12.Bd3 g6 (12...h6 13.cd5 cd5 14.Nc3 b6 15.0-0 Bb7 16.Ra1 g6 17.h3 Rc8 18.Nd4 Nc5) 13.Nc3 Nc5 14.Be2 dc4 15.Bc4 e5 16.bc6 bc6 17.Ne4 Ne4 18.Qe4 Bf5; 12.cd5 cd5 (12...ed5 13.Bd3 Re8 14.bc6 bc6 15.Bh7 Kh8 16.Bf5 Ne5 17.Nd4 Bb7 18.f4 Nc4) 13.Nc3 b6 14.Bd3 g6 15.0-0 Bb7 16.Ra1 Rc8 17.h3 Nc5 18.Ra7 Kg7) 12...e5-/+ (12...dc4 13.bc6 bc6 14.Nbd2 Bb7 15.Bc4 c5 16.Bb5 Nb6 17.dc5 Rc8 18.c6 Qa1; 12...g6 13.Nc3 Re8 14.Be2 Qf5 15.Qf5 ef5 16.c5 Bb8 17.Kd2 Nf6 18.Rb1 Bc7) 13.bc6 (13.Nc3 Re8 14.bc6 (14.Be2 e4 15.Nd2 Qg5 16.g3 Nf6 17.c5 Bc7 18.0-0 Ng4) 14...bc6=+ 15.Be2 dc4 16.0-0 ed4 17.Nd4 Ba6 18.g3 Be5) 13...bc6 14.cd5 (14.Nc3 Re8 15.Be2 ed4 (15...dc4 16.0-0 ed4 17.Nd4 Nb6 18.Na4 Na4) 16.Nd4 dc4=+ 17.0-0 Nb6 18.g3 Bb4) 14...cd5 15.Qb2 (15.Nc3 Bb4 16.Qb2 (16.Qb3 Ba5 17.Qa3 Qb6 18.Kd1 e4) 16...Ba5-+ 17.Nd2 Qc6 18.Ne2 f6) 15...Bc7 (15...e4 16.Nfd2-/+ Qg6 17.Nc3 Nf6 18.Qb6 Be7) 16.Qb5 (16.Nc3 Ba5 17.Qa3 Qb6-+ 18.Kd1 e4) 16...Qd6 (16...e4 17.Nfd2 Qe6 18.Nb3 Nf6) 17.Nc3 Qa3 (17...e4 18.Nd2 Nf6) 18.Nd5 Qa1 (18...Ba5=+) 19.Kd2. Trokenheim,Marek (2175) – Brueske,Thomas (2360), RSX5D – A00 – Sokolsky–1, 2010.

11.d4 Bb4 12.Qa4 c5 13.dc5 Bc5 14.cd5 Nb6 =.

11.d4 Bb4 12.Qa4 Qe7 =.

11.d4 dc4 12.Bc4 c5 13.0-0 b6 (13...Qc7 14.dc5 Nc5 15.Na4=) 14.Qb3 (14.e4 cd4 15.Qd4 Qc7=) 14...Bb7 (14...cd4 15.Nd4 Qc7=) 15.Be6 (better 15.d5!?=) 15...cd4 16.Nd4 (16.Bf7 Rf7 17.Ng5 A) 17...dc3 18.Qf7 Kh8 19.Qe6 (19.Bc3?! Bd5+/-) 19...Bh2 20.Kh2 Qc7 21.Kg1+-; B) 17...Bh2 18.Kh1 Nd5 19.Nf7 Qh4-+) 16...Nc5 17.Bf7 (17.Qc4!? Ne6 18.Ne6 fe6 19.Qe6 Kh8 20.Rd1-+) 17...Rf7-+ 18.Qa2? (18.Qd1 Qd7-+) 18...Qd7 (better 18...Bh2!? 19.Kh2 Ng4 20.Kg1-+) 19.Rd1 Kh8 (19...Ng4 20.Nf3 Bf3 21.gf3-+) 20.Nce2 (20.Nc6 Rf8 (worse 20...Bc6 21.bc6 Bh2 22.Kh2 Qc7 23.Kg1+/-) 21.Qd2 Ne8-+) 20...Rf8 (20...Bh2 21.Kh1 Ng4 22.f3-+) 21.Ng3 (better 21.f3-+) 21...Bg3 22.hg3 Nfe4 (better 22...Ng4 23.Rd2 Ne4-+) 23.Nf3?? (23.f3 Ng3 24.Qf2-+) 23...Qd1 24.Kh2 Nd3 25.Bd4 Ndf2 26.g4 Qh1 0-1. ClayPigeons (2135) - A15A19A28L25 (2385), Rated Bullet game, lichess.org, 2019.

11.Be2 dc4 12.Bc4 Nb6 13.Be2 =.

11.Be2 c5 12.0-0 dc4 13.Bc4 e5 14.d3 (14.Qc2 Nb6 15.Be2 Qe7=) 14...Nb6 15.Qc2 (15.Bb3 Bf5=) 15...Qe7 16.e4 (16.Nd2 Bg4=) 16...Nh5 17.g3 (17.Bb2 Bg4 18.Nd2 Qg5=+) 17...Qf6 (17...Rd8 18.Nd2=+) 18.Nd2 (18.Ne1 Qg6=+) 18...Bh3 19.Re1 Qh6 (19...Nf4 20.Bb3=+) 20.Ne2 (20.Nd5!? Nd7 21.Bb2=) 20...Nf6 21.Nf1 (21.Bb3 Ra8=+) 21...Ng4-/+ 22.Qd2 Qf6 (22...Qh5 23.Ne3-/+) 23.f4=+ Ra8 24.Bb2 Bc7 25.Ne3 Ne3 26.Qe3 Nc4 27.dc4 ef4 28.Bf6? fe3-+ 29.Bg5 Ra3 30.Nc1 Be5 31.Be3 b6 32.Rd1 f6 33.Kf2 Rc3 34.Nd3-/+ Bg4 35.Rd2 Bc7 36.Nb2 Be6 37.Bf4 Bf4-/+ 38.gf4 Kf8 39.f5 Bc4 40.Na4 Rh3 41.Kg2 Re3 42.Nb6 Bb5 43.Rc2 Re4 44.Rc5-/+ Re5 45.Re5 fe5 46.Kf3 Bc6 47.Kg4 Ke7 48.Nc4 Kf6 49.Nd6 h6 50.h3 Bd7 51.Ne4 Ke7 52.h4 g6 53.Ng3 Kf7 54.h5 gf5 55.Kf3 Kf6 (56.Kf2 Kg5-+; 55...Ke6 56.Ne2-+) 0–1. Gerold,Guenter – Siegmund,Rainer, corr DDR–ch M525, 1968.

11.Be2 Qc7 12.Na4 cb5 13.cb5 e5 14.b6 =+.

11.Be2 Qc7 12.Na4 e5 13.c5= Bc5 (13...Nc5 14.Nc5 e4 15.Bf6 Bc5=+) 14.Be5 (better is 14.Nc5 Nc5 15.Be5+=) 14...Ne5-/+ 15.Nc5 cb5 (15...Nf3!? 16.Bf3 Qb6-/+) 16.Ne5=+ Qc5 (16...Qe5 17.d4 (17.Bb5? d4-+) 17...Qg5 18.0-0= (18.Bb5? Qg2 19.Kd2 b6-+)) 17.0-0 Ne4 (17...d4 18.Nf3 de3 19.fe3=+) 18.d4= Qa3 19.Bb5 Nc3 20.Qd3 Nb5 (better is 20...Qb2!? 21.Bd7 Bd7 22.Nd7 Ra8=) 21.Qb5+= Rd8 22.Nd3 Qa6 23.Qa6 ba6 24.Ra1 Rd6 25.Nc5 Rb6= 26.Kf1 Kf8 27.Ke1 Ke7 28.Kd1 Kd6 29.Kc2 Kc6 30.Nb3 Rb4 31.Ra5 Rb5 32.Ra3 Rb4 (33.f3 Kb5=). Turcot,J – Herborn,H, corr, 1975.

11.Be2 Qc7 12.bc6 bc6 13.d4 Ba6 =.

11.Be2 e5 12.bc6 bc6 13.cd5 cd5 14.0-0 e4 15.Nd4 Ne5 16.Ncb5 Bg4 17.Nd6 Qd6 18.Nb5 Be2 19.Nd6 Bd1 20.Be5 Be2 21.Re1 (21.Ra1 Ng4 22.Bd4 f6+=) 21...Rb8 (better 21...Nd7 22.Bd4 Bd3=) 22.Ne4!+- (22.Ne4 Rb6 23.Bd4+- (23.Re2?? Rb1 24.Re1 Re1)) 1-0. onur604 (2320) - ChessforChessfun (2310), lichess.org, 2020.

11.Be2 e5 12.d4 =+.

9.c4 0-0 10.Be2 Nbd7 11.0-0 Nb6 12.d3 Qe7 13.Nbd2 e5 14.cd5 Nfd5 15.Ne4 f5 (better 15...f6=) 16.Nd6+/- Qd6 17.Ne5 f4 18.e4 Nb4 (18...Nf6!?+/-) 19.d4+- cd4? (better 19...Be6+-) 20.Qd4 (20.Bd4?! Be6+-) 20...Qd4 21.Bd4 1-0. onur604 (2320) - Nidalee (2260), Casual Rapid game, lichess.org, 2021.

9.c4 0-0 10.Be2 Nbd7 11.0-0 Qc7 12.Qc2 b6 13.d3 dc4 14.dc4 Bb7 15.h3 Ra8 16.Nc3 Ra5 17.Bb2 Ba8 18.Rd1 Ne5 19.Nd2 Qb7 20.e4 Bc7 21.f4 Ng6 22.g3 h5 23.Bf3 Qb8 24.e5 Nh7? 25.Bh5+- Be5 26.Bf3?? Bd4= 27.Kg2 Nf6 28.Ne2 e5 29.fe5 Qe5 30.Nd4 cd4 31.Nb3 Nh5 32.Qf2 Ra2?? 33.Rd2?? Qg5 34.Ba8+/– Ra8 35.Bd4 Ra3= 36.Be3 Qe5 37.Rd5 Qe4 38.Qf3 Ra2? 39.Nd2+- 1–0. Melich,Jindrich (2150) – Chrz,Pavel (2155), CZE–chT2b, 2001.

9.c4 Nbd7 10.d3 0-0 11.Be2 Qc7 12.0-0 e5 13.g3 e4 14.de4 de4 15.Nfd2 Ne5 16.Nc3 Bh3 17.Nce4!? Ne4 18.Ne4 Bf1?! 19.Kf1! Be7 20.Bc3 Rd8 21.Qa1 h6?? 22.Be5 1–0. mtr – bakkeljauw, Caissa's Web, 2001.

9.c4 0-0 10.Nc3 Nbd7 11.bc6 bc6 12.Be2 Ba6 13.cd5 Be2 14.Qe2 cd5 15.0-0 Ne5 (15...Qa5 16.Nd4=) 16.Nb5 Nf3 17.Qf3 Bb8 18.Bf6 Qf6 19.Qf6 gf6 20.d4 Rc8 21.Rb1 Kf8 22.f4 Ke7 23.Kf2 Kd7 24.Kf3 Bc7 25.Nc3 (25.Nc7 Rc7 26.Rb8 Rc3+=) 25...Ba5 26.Ne2 Rc7 27.Ng3 Ke7 28.Rb3 f5 29.Nh5 Ra7 30.Ra3 Bb6 31.Rb3 Bd8 32.g4 fg4 33.Kg4 Ra2 34.Rb7 Kf8 35.Kg3 (35.f5 Rh2 36.Nf4 Rh6=) 35...Re2=+ 36.Rb3 f6 (36...f5 37.Kh3=+) 37.Kh3 (37.f5 Bc7 38.Nf4 Bf4 39.ef4 ef5=) 37...Kf7 (37...f5 38.Ng3 Ra2 39.Rb7=+) 38.Ng3 Rc2 39.Rb7 Rc7 40.Rb8 Be7 41.Rb3 Kg6 (41...f5 42.Rb2=+) 42.Rb2 (42.Rb6 Kf7=) 42...Ba3 (42...Rc3 43.Nf1=+) 43.Ra2 (43.Rb6 Re7=) 43...Bc1 44.Re2 Rc3 45.Nf1 Kf5 (45...e5 46.fe5 fe5 47.de5=+) 46.Kg2 (46.Ng3 Kg6 47.Nf1 e5 48.fe5 fe5 49.de5 Kf5=+) 46...Ke4 Will e3 fall? 47.Kf2 e5 48.fe5 fe5 49.Ng3 Kd3 50.de5 Ba3 (50...Rc6 51.Kf3 Re6 52.Kf4=) 51.e6 (51.Kf3!? Rc8 52.Nh5+-) 51...Rc6= 52.Ke1 (52.Nh5!? Ke4 53.Ra2=) 52…Bb4=+ (52...Bb4 53.Kf2 Re6=+) 0–1. GuestJLYL – GuestQJQT, freechess.org, 2017.

9.c4 0-0 10.Be2 dc4 11.Bc4 cb5 12.Bb5 =+.

9.c4 0-0 10.Be2 Nbd7 11.0-0 Qa5 (11...cb5 12.cd5 Nd5 13.e4=+) 12.Bc3= Bb4 (12...Qb6 13.bc6 bc6 14.d4=) 13.Qb3+= Bc3 14.Nc3 dc4 (14...Ne4 15.Rc1+=) 15.Bc4 Nc5 (15...cb5 16.Bb5 e5 17.Rb1+=) 16.Qb2 Qc7 (16...cb5 17.Nb5 Na4 18.Qe5+=) 17.d4+/– Nce4 (17...Ncd7 18.bc6 bc6 19.Ra1+/–) 18.Ne4 Ne4 19.Bd3 Nf6 20.bc6 bc6 (20...Qc6 21.Ra1+/–) 21.Rc1 Bd7 22.Ne5 Rc8 (22...Qd6 23.Qc2+/–) 23.Qc2 (23.Qa3 Nd5+/–) 23...g6 (23...Qd6 24.f3+/–) 24.Ba6 (24.Qe2 Ra8+-) 24...Ra8+/– 25.Nd7 (better is 25.Bb5+/–) 25...Ng4?? (better is 25...Qd7 26.Qc6 Qc6 27.Rc6 h6+/–) 26.Qc6+- Qh2 27.Kf1 Ra6 (27...Rd8 28.Bb5 Qh4+-) 28.Qc8 (28...Kg7 29.Qf8#) 1–0. Grossmann,Philipp (1910) – Werner,Andreas (1900), RLNO_Kareth1–SWNbg2, 2005.

9.c4 0-0 10.Be5 Be5 11.Ne5 cb5 12.cb5 Ne4 =+.

9.c4 cb5 10.cb5 0-0 11.Be2 Nbd7 12.0-0 Nc5 (12...e5 13.Nc3+=) 13.Be5 Be5 (13...Qe7 14.Bd6 Qd6 15.Qc2+=) 14.Ne5 Nfe4 (14...Ncd7 15.d4+=) 15.Qc2+= Nd7 16.Nf3 Ndf6 17.Nc3 (17.Rc1 Bd7 18.Ne5 Qe7+=) 17...Bd7 (17...Qd6 18.Qb2=) 18.Ne4 Ne4 19.Bd3 (19.Rc1 Qa8=) 19...Qa5 20.Be4 de4 21.Qe4 Bb5 22.Qe5 (22.Rb1 Bc6 23.Qe5 Qd5=) 22...Qb4 (22...Ra8 23.Rb1=) 23.Rc1 Bc6 24.Qd4 Qa5 25.Ne5 Qd5 (25...Rd8 26.Ra1 Qd5 27.Nc6 bc6 28.Qd5 cd5 29.h4=) 26.Nc6 bc6 27.Qc3 Rc8 28.d4+= Qd6 29.Qa5 Kf8 30.h3 h6 31.Qa6 Rc7 32.Rc5 Ke7 33.Qb6 f6 34.Qb8 Qd8 35.Qb1 Kf7 36.f4 f5 37.Qb3 Qd7? 38.Rf5+- Kg8 39.Re5 Kf7 40.f5 Kg8 41.fe6 Qe7 42.Qb8 Kh7 43.Qc7! Qc7 44.e7 (44.e7 c5 45.e8Q cd4 46.ed4 Qc1 47.Re1+-) 1–0. Schulze,Harald (2115) – Kinkelin,Ulrich (1950), Bayern Landesliga Nord, 1998.

9.c4 dc4 10.Bc4= Nbd7 (10...0-0 11.Nc3 (11.0-0 cb5 12.Bb5 Bd7 13.Bf6 Qf6 14.Nc3 Qe7 15.Qb3 Nc6 16.d4=; 11.bc6 Nc6 12.d4 Qd7 13.0-0 Rd8 14.Qe2 Ng4 15.Rc1 Qc7 16.h3=) 11...Bd7 12.0-0 Qc7 13.Qb3 b6 14.d3 Ng4 15.h3 Nh2 16.Nh2+=; 10...cb5 11.Bf6 (11.Bb5 Bd7 12.Qb3 Nc6 13.d3 0-0 14.0-0 Qe7 15.Nbd2 Na5 16.Bf6=; 11.Be2 0-0 12.0-0 Bd7 13.Bf6 Qf6 14.Nc3 Qf5 15.Nd4 Qg6 16.Ndb5+=) 11...Qf6 12.Bb5 Nd7 13.Nc3 Qg6 14.Nh4 Qh6 15.Qa4 Kd8 16.Bd7+=) 11.bc6 (11.0-0 Nb6 12.Be2 cb5 13.Bb5 Bd7 14.Bf6 Qf6 15.Bd7 Nd7 16.Qa4=; 11.Qc2 cb5 12.Bb5 0-0 13.0-0 b6 14.d3 Bb7 15.e4 e5 16.Nbd2=) 11...bc6 12.0-0 (12.d4 0-0 13.0-0 Nb6 14.Bd3 Bb7 15.Nbd2 Nbd5 16.e4=) 12...c5 (12...Nb6 13.Be2 0-0 14.Qc2 c5 15.d4 cd4 16.Bd4=) 13.Na3 0-0 (13...Bb7 14.d3 0-0 15.Nb5 Be7 16.Qe2=) 14.Nb5 (14.Qb3 e5 15.Nb5 Bb8 16.d3+=) 14...Bb8 (14...Be7 15.Qc2 Bb7 16.Be2=) 15.Qc2 (15.d3 Bb7 16.e4=) 15...Nb6 (15...Bb7 16.Rb1= (16.d3=)) 16.Ba2 (16.Bf6 Qf6 17.Bd3 Qh6 18.Qc5 Bb7+/–) 16...Ba6 17.Rb1 Nbd5 (17...Bb7 18.Ng5 Nbd5 19.f3= (19.Qc5 Nd7 20.Ne6 fe6-/+)) 18.Bc4 (18.Qc5!? Qd7 19.Bd5 Nd5 20.Nc3+=) 18...Nb4= 19.Qb3 Nfd5 20.d4 cd4 (20...Bb5 21.Bb5 Qb6 22.e4 Qb5 23.ed5+/–) 21.Bd4 (better is 21.e4!? Bb5 22.Bb5+-) 21...Bb5 22.Bb5 Bd6 23.Be5 ½–½. algernon (2555) – averoes (2510), net–chess.com, 2014.

9.Be2 0-0 10.0-0 Nbd7 11.d4 cb5 12.Bb5 Qa5 13.Nc3 Bb4 14.Qd3 Ne4 15.Ne2 (15.Ne4? de4 16.Qe4 Qb5-+) 15...Ndf6 16.Ne5 Nd2 17.Rd1 Nde4 18.c3 Bd6 19.f3 Ng5? (better 19...Nd2!=) 20.h4+- Be5 21.hg5 Bd7 22.Rb1 Bb5 23.Qb5 Qb5 24.Rb5 Bd4 (24...Ra8 25.Bb2+- (25.gf6?! Ra1 26.Kf2 Bf6+=)) 25.cd4 (25.cd4 Ra8 26.Bc3+-; 25.gf6?! Be3 26.Kf1 Ra8+/-) 1-0. DEFFM – GuestNRTG, freechess.org, 2021.

9.Be5 0-0 =.

9.Nf3 c5 10.Be2 Nbd7 11.0-0 b6 12.c4 Bb7 13.cd5 Nd5 14.Na3 Qe7 15.Nc4 Bc7 16.Qe1 Rd8 17.Qg3 f6 18.Bb2 Nf8 19.d4 Qe8 (19...Ng6 20.Ba1=) 20.dc5+= Qb5 21.cb6 Bb6 22.Nd4 Bd4 23.Bd4 (< 23.ed4 Nb6 24.Qc3 Rc8-/+) 23...Qb4 24.Rc1 Ba6 25.Qf3 Rc8 (25...Qb3 26.Qe4+=) 26.Qf1 Nd7 27.Rb1 Qf8 28.Ra1 Rc6 29.Nd2 Be2 30.Qe2 Qb8 31.Qg4 Nf8 (31...Qe8 32.Nf3=) 32.Ne4 e5 (32...Ng6 33.Nc5 Qc8 34.Nd3=) 33.fe5 fe5 34.Qf5 Ne7 (34...g6 35.Qg5 h6 36.Be5 hg5 37.Bb8 Ne3 38.Kf2+/–) 35.Be5+= (< 35.Qe5 Qe5 36.Be5 Re6 37.Bg7 Re4 38.Bf8 Kf8-/+) 35...Nf5 36.Bb8 Ne3 37.Kf2 Nd5 (37...Nc4 38.Ra7=) 38.Bd6 (38.Ra7 Nf6 39.Kf3 Ng6+=) 38...Nc3 39.Nc3 Rd6 40.Ne4 Rb6 41.Ra7 h6 42.Ng3 (42.h4 h5+=) 42...Rf6 (42...Rb2 43.Kf3=) 43.Ke3 Rf7 44.Ra8 Kh7 45.Ne4 Ng6 46.g3 ½–½. Cottarelli,Franco – Feilmayr,Erwin, corr ICCF TT, 2007.

9.Nf3 c6 10.Nc3 Nbd7 11.Be2 e5 12.fe5 Ne5 13.0-0 Nfg4 (13...Nf3 14.Rf3 Qc7 15.g3=+) 14.h3 (14.Ne5 Ne5 15.Bb2 Qg5=+) 14...Nf3=+ 15.Bf3? (better is 15.Rf3!? Nh2 16.Rf4=+) 15...Nh2-+ 16.Rf2 Qg5 (16...Bg3 17.Qe2-+) 17.g4 Nf3 18.Qf3 f5 19.Qg2 fg4 20.hg4 (20.Rf8 Kf8 21.Bb2 Ke8-+) 20...Rf2 21.Kf2 Bg4 22.Ne2 (22.Kg1 Qh5 23.Ne2 h6-+ (< 23...cb5 24.Nf4 Bf4 25.ef4-/+)) 22...Qh4 23.Ng3 h5 (23...Bf5 24.bc6 bc6 25.d3-+) 24.bc6 bc6 25.Bc3 (25.Bd4 Bf5 26.d3 Bh3-+) 25...Qg5 (25...Bd1 26.Qg1-+) 26.Nf1 (26.Qh1 Kf7-+) 26...Qf5 27.Kg1 Qc2 28.Qf2 Qg6 29.Kh1 Qe4 30.Kg1 Bf3 31.Nh2 Qg6 32.Kf1 Qb1 33.Qe1 Qe1 34.Ke1 Bh2 35.Kf2 Be4 36.d4 h4 37.Be1 0–1. Szewczak,Andrzej – Szopieraj,Dariusz (2155), Polanica Zdroj op, 1996.

9.Nf3 c6 10.Be5 Ne4 =.

9.Nf3 Qe7 10.Be2 b6 (10...Nbd7 11.Ne5=+) 11.0-0= c6 (11...Nbd7 12.Bd4=) 12.Nc3 Ne4 (12...c5 13.Na4 Nbd7 14.Ne5=) 13.Ne5 (13.Qb1 c5+=) 13...Nc3 14.Bc3 (worse 14.dc3 cb5 15.Bb5 f6=+) 14...cb5 15.Bb5 Ba6 16.Qe2 Be5 17.Be5 (worse 17.Ba6 Bc3 18.dc3 Na6 19.Qa6 Qc5-/+) 17...f6 (17...Bb5 18.Qb5 Qb7 19.Bd4+=) 18.Bd4+- Bb5 19.Qb5 e5? (better 19...Qd7 20.Qb6 Nc6+-) 20.Qd5+- Kh8 (20...Qf7 21.Qf7 Kf7 22.fe5 Nd7+-) 21.fe5 fe5 (21...Nd7 22.e6 Nc5 23.Bc5 bc5 24.Rb1+-) 22.Rf8 Qf8 23.Be5 Qe8 (23...Na6 24.Qb5 Nc5 25.Qb6+-) 24.Bb8 Qb8 25.e4 b5 (25...Qf8 26.Qd7 h5 27.Qb5+-) 26.e5 b4 (26...h6 27.e6 g6 28.h3+-) 27.e6 h6 28.d4 Qf4 29.Qd8 Kh7 30.e7 Qe3 31.Kf1 Qf4 (31...Qc1 32.Kf2 Qc2 33.Ke3 Qc1 34.Ke4 Qc2 35.Kd5 Qa2 36.Kc6 Qa6 37.Qb6 Qa8 38.Qb7 Qa2+-) 32.Ke2 Qe4 33.Kd1 Qg4 34.Kc1 Qf4 35.Kb2 Qd2 36.e8Q Qc3 (36...Qe3 37.Qe3 h5 38.Qe5 g5 39.Qdg5 b3 40.Qgg7) 37.Kb1 b3 (37...Qc6 38.Qc6 b3 39.Qe4 g6 40.Qb7) 38.Qe4 (38.Qe4 g6 39.Qee7) 1–0. Pierre – Hortra, internet, 2020.

10.Bd3 c5 11.bc6 bc6 12.0-0 Re8 13.c4 (13.Be5 A) 13...Ne5? 14.fe5 (worse 14.Ne5 Qc7-/+) 14...Be7 15.ef6 Bf6 16.Nc3+-; B) 13...Be5 14.Ne5 Qc7=) 13...e5 (13...Nc5 14.Be2=+) 14.fe5= Ne5 15.Be5 Be5 (worse 15...Re5 16.c5 Bc7 17.Ne5 Be5 18.Qa4+-) 16.Ne5 Re5 17.cd5 cd5 18.Rf4 Qb6 19.Nc3 Bb7 20.Qb1 Qb1 21.Bb1 Ne4 22.d4 Nc3 23.de5 Ne2 (23...Nb1? 24.Rb4 Nd2 25.Rb7+-) 24.Kf2 Nf4 25.ef4 g6 26.g3 f6 27.Ke3 Kf7 28.Kd4 Ke6 29.h4 fe5 (29...f5 30.Bd3+-) 30.fe5 Ba6 (30...Bc8 31.Bd3+=) 31.h5!+- gh5 32.Bh7 Bc8? (better 32...Bb5+-) 33.Bg6+- Bb7 1–0. pcmvr – mgilbert, net–chess.com, 2019.

10.Be2 c5 11.0-0 Qa5 12.Bb2 =.

10.Be2 c5 11.0-0 b6 12.Nc3 Bb7 13.Qe1 d4 (13...Qc7 14.Qh4=) 14.ed4 Bf4 15.dc5 Nc5 16.Nb1 Ncd7 17.Nd4 (17.Bd4 Qc7 18.g3 Bd6=+) 17...Qc7=+ 18.Qh4 e5 19.g3 Qc5 (< 19...ed4 20.Qf4 Qc2 21.Bd4=) 20.gf4 ed4 21.Qf2 Qc2 22.Bd4 Qg6 (22...Re8 23.Nc3=+) 23.Qg3= Qe4 24.Bf6 Nf6 (24...Qe2?? 25.Qg7) 25.Bf3 Qe7 26.Bb7 Qb7 27.Nc3 Qd7 28.Rf2 Re8 29.f5 Re1 (29...Qd4 30.Qf4 Re1 31.Kg2=+) 30.Kg2 h6 31.h3 Qd4 32.Qf4 Ne4 33.Ne4 Re4 34.Qb8 Kh7 35.Qb7 f6 36.Qf7 Qd3 37.Qg6 Kg8 38.Qg3 Qb5 39.Rf4 Re2-+ 40.Rf2 Qd5 41.Kf1 Rd2 42.Rd2 Qd2 43.Qb8 Kh7 (44.Qb6 Qd3 45.Kg2 Qf5-+) 0–1. Achermann,Josef (1685) – Ould Ahmed,Samy (2155), Telechess, 2004.

10.Be2 c5 11.bc6 bc6 12.0-0 Qc7 13.c4 Ba6 14.cd5 (14.Bf6!? Nf6 15.c5 Be2 16.cd6 Bd1 17.dc7 Bf3 18.Rf3-/+) 14...Be2=+ 15.Qe2 ed5 16.Nc3 (16.Qd3 Ra8 17.Bf6 Nf6=+) 16...Re8 (16...Rb8 17.Qe1=+) 17.Qd3 Bc5 (17...Nc5 18.Qc2=+) 18.Ne2 Bd6 (18...Ne4 19.Bd4=) 19.Rc1 (19.Qf5 c5=) 19...Nc5 (19...Ne4 20.Bd4=) 20.Qc2 Nb3?? (better is 20...Nfd7=) 21.Qb3+- 1–0. pcmvr (2835) – woudstra (2730), net–chess.com, 2006.

10.Be2 Re8 11.Ne5 c6 12.bc6+= bc6 13.Nc6 Qb6 14.Ne5 Ba6 15.0-0 Be2 16.Qe2 Rc8 (16...Ra8 17.Bd4 Bc5 18.Bc5 Nc5 19.c4+=) 17.Bd4 (17.Nd7 Nd7 18.Qg4 g6+/–) 17...Bc5+= 18.c3 (18.Bc5 Qc5 19.Nd7 Nd7+=) 18...Ra8 19.d3 (19.Bc5 Nc5 20.c4 dc4 21.Nc4 Qb3+=) 19...Ra1 20.Qc2 Qa7 21.Qb3 Ra2 (21...Qc7 22.Qb2 Ra4 23.c4+=) 22.Rf3 (22.Nd7 Nd7 23.f5 Qa4 24.Qa4 Ra4+=) 22...Re2 (22...Ra1 23.Rf2+=) 23.Kf1 Ra2 24.Nc6 Qa8 25.Nb4 (25.Qb5 Bd4 26.Nd4 Ra6+=) 25...Ra1 26.Kg1 Ng4 (26...Bd4 27.cd4 Qa4 28.Qa4 Ra4 29.Nc2+=) 27.Nc2 Ra7 28.Rg3 Ngf6 29.Nb4 Ra1 30.h3 (30.Bc5 Nc5 31.Qb2 Qa4+=) 30...Ne8 31.Nc2 Ra7 32.Rf3 Rb7 33.Nb4 Nd6 34.Na3 Nf5 35.Nac2 Be7 36.Kh2 Qa5 37.Rf1 Nc5 38.Bc5= Qc5 39.e4 de4 40.de4 Nd6 41.e5 Ne4 42.Qa4 Ra7 43.Qe8 Bf8 44.Rd1 Nc3= 45.Rd8 Ne2 46.Nd4 Nd4 47.Nd3 Qa3 48.Rd4 Ra8 49.Qc6 Qa5 ½–½. pcmvr (2800) – rcastaneda (2725), net–chess.com, 2006.

10.Be2 Re8 11.Ne5 Ne4!? 12.0-0 f6 13.Nd7 Qd7 =.

10.Be2 Re8 11.Ne5 Ne4 12.0-0 f6 13.Nd7 Bd7 14.c4 (14.d3 Nc5 15.Nc3 Qe7=) 14...Bf8 (14...dc4 15.Qc2 Nc5 16.Bc4+=) 15.Nc3 Nc3 16.Bc3 Qe7 (16...c6 17.Bh5 g6 18.bc6 Bc6 19.cd5 Bd5 20.Bf3=) 17.Qc2 c6 (17...Ra8 18.d4+=) 18.b6 (18.Bd3 g6+=) 18...Ra8 19.d4 Be8 (19...c5 20.Bf3+=) 20.Bd3 f5 ½–½. pcmvr (2610) – garompon (2540), net–chess.com, 2006.

9.Nf3 0-0 10.Bd3 c5 11.0-0 c4 12.Be2 Qb6 13.Nd4 Bc5 14.d3 e5 15.fe5 Ne5 16.dc4 dc4 17.Qe1=+.

9.Nf3 0-0 10.Bd3 c5 11.bc6 bc6 12.0-0 (12.Be2 Qa5 13.Bc3 Qb6 14.0-0 Ne4 15.Bd4 c5 16.Ba1 Bb7 17.Nc3=+; 12.Qe2 c5 13.Bb5 Qa5 14.Bf6 Nf6 15.0-0 Bb7 16.c4 Rb8 17.Nc3=+) 12...Bb7 (12...Qc7 13.Bb2 Bb7 14.c4 Rb8 15.Qc2 c5 16.Na3 d4 17.Nb5=) 13.c4 (13.Ne5 Ne4 14.Qf3 Ndc5 15.Be2 Qa5 16.Bc3 Qa4 17.Rc1=+) 13...Ba6 (13...c5 14.Qc2 Qe7 15.Ne5 Nb6 16.Nc3 Ra8 17.cd5=) 14.Qc2 Qa5 (14...Qb8 15.Bd4 c5 16.Bf6 Nf6 17.cd5=+) 15.Bc3 Qb6 (15...Bb4 16.cd5 Bd3 17.Qd3=) 16.Bd4 (16.Ne5 Nc5 17.Bd4=) 16...c5 17.Bf6 (17.Be5=) 17...Nf6 18.Qa4 Bb7 19.Nc3 Bc6 20.Qc2 Rb8 21.cd5 ed5 22.Ne5 Be8 23.Be2 Qc7 24.Qf5 d4 25.ed4 cd4 26.Ne4 Ne4 27.Qe4 g6 28.Bf3 (28.Qd4?? Bc5 29.Qe3 Rd8-+) 28...Bb4 29.d3 (29.Qd4?? Bc5 30.Qf2 Bf2 31.Kf2 f6-+) 29...Kg7 30.g3 (30.Qd4?? Bc5 31.Qf2 Bf2 32.Kf2 f6-+) 30...Bc3 31.Nc6 ½–½. Degterev,Pavel (2475) – Ellis,Les (2245), Champions League, 2010.

9.Nf3 0-0 10.Bd3 c5 11.Be2 A) 11...Qb6 12.c4 Rd8 13.0-0 Be7 14.Qc2 dc4 15.Bc4 Nd5 16.Ng5 Nf8 17.e4=; B) 11...Re8 12.Bb2 (12.0-0 Qc7 13.Qe1 e5 14.fe5 Ne5 15.Qh4 Ng6 16.Qa4 d4 17.Na3=+) 12...e5 13.fe5 Ne5 14.0-0 Qc7 15.Be5 Be5 16.Ne5 Qe5 17.Na3=+; C) 11...Qc7 12.Bb2 (12.0-0 b6 13.Qe1 Bb7 14.Qh4 Be7 15.Qg3 d4 16.ed4 Nh5 17.Qf2=+) 12...b6 13.0-0 Bb7 14.Qe1 d4 15.ed4 Bf4 16.Qh4 cd4 17.Bd4=+; D) 11...Qa5 12.Nc3 b6 13.Qc1 Bb7 14.0-0 Ra8 15.Kh1 Qb4 16.Qb2 Ra7 17.Rc1=+.

9.Nf3 0-0 10.Bd3 Nc5 11.Be2 A) 11...Bd7 12.Bd4 (12.0-0 Qe7 13.Bd4 Ra8 14.Ne5 Qe8 15.Nc3 Qe7 16.Qe1 Qe8 17.Kh1=; 12.Ne5 Qe8 13.Nd7 Ncd7 14.0-0 Qe7 15.Nc3 Ra8 16.Qe1 Bc5 17.Qg3=; 12.Be5 Qe7 13.0-0 Ra8 14.Nc3 Nfe4 15.Ne4 de4 16.Bd6 cd6 17.Nd4=) 12...Nce4 13.d3 Nc5 14.Nc3 Be7 15.Qa1 c6 16.Qa7 b6 17.bc6+=; B) 11...Qe7 12.0-0 (12.Bd4 Bd7 13.0-0 Ra8 14.Ne5 Ra5 15.Nc3 Be8 16.Qe1 Na4 17.Na4=; 12.Be5 Bd7 13.0-0 Ra8 14.Nc3 Nfe4 15.Ne4 de4 16.Bd6 cd6 17.Nd4=) 12...Bd7 13.Bd4 Ra8 14.Ne5 Nce4 15.d3 Nc5 16.Nc3 Qe8 17.Qb1=.

8.c4 Bb4 9.Qb3 Qe7 (9...Bf8 10.Bf6 Qf6 11.cd5+=) 10.Bc3 (10.Bf6 gf6 11.cd5 e5+=) 10...Bc5 (10...Bc3 11.Nc3 dc4 12.Bc4=) 11.Nf3 (11.cd5 0-0 12.de6 Be6+=) 11...0-0 (11...c6 12.Ne5 Bd6 13.d4=) 12.Be2 (12.Bf6 Qf6 13.cd5 e5+=) 12...Ne4 (12...dc4 13.Bc4 Bd6 14.Qb2=) 13.Bd4 (13.cd5 Nf6+=) 13...Bb4 (better 13...Bd4!? 14.Nd4 e5=+) 14.0-0 (14.cd5 Bd6+/-) 14...dc4 (14...c5 15.Be5+=) 15.Bc4 (15.Qc4 Rc8+/-) 15...c5+= 16.Bc3 Nc3 17.dc3 Ba5 18.Ne5 (18.Nbd2 Rd8+=) 18...Be8 (18...Bc7 19.Nd3=) 19.Nd2+= Bc7 20.Nef3 Bd7 21.Ne4 f5 (21...b6 22.Qc2+=) 22.Neg5+/- h6 (better 22...Re8!?+/-) 23.Ne6+- Be6 24.Be6 Kh8 25.Rd1 g5 (better 25...g6+-) 26.Ng5?? (better 26.b6 Bd8 27.Ne5+-) 26...hg5=+ 27.Bd5 g4 (27...Be5 28.Qc2=+) 28.c4 (28.Bb7 Bh2 29.Kh2 Qb7=) 28...Rf6 (28...Be5 29.g3=+) 29.Qc3 (29.Bb7!? Bh2 30.Kh2 Qb7 31.Rd5=) 29...Be5-/+ 30.Qe1 Qh7 31.g3 Qh5 (31...Rh6!?-/+) 32.Bb7= Rh6 (32...Rf7 33.Rd8 Kg7 34.Re8 Rb7 35.Re5+=) 33.Kf1 (33.Qa5 Kg7+=) 33...Qh2 (33...Qf7 34.Bd5 Qe8 35.Qa5=) 34.Rd8 (34.Qa5 Kg7 35.Qd8+-) 34...Kh7? (better 34...Kg7+=) 35.Rd7?? (better 35.Qd2 Bc7 36.Rd7 Nd7 37.Qd7 Kg6 38.Qc7+-) 35...Kg6 (better 35...Nd7 36.Qe2 Nb6-+) 36.Rd5=+ Qh1 (36...Rh7 37.Re5 Rb7 38.Qd1 Qh1 39.Ke2 Qd1 40.Kd1-/+) 37.Ke2 Qf3 38.Kd2 Qe4 (better 38...Rh1!? 39.Qh1 Qh1 40.Rd6 Bd6 41.Bh1 Nd7-/+) 39.Rd6+= (39.Rd6 Bd6 40.Be4 fe4 41.Qa1+=; 39.Rc5 Qb7 40.Re5 Rh1-+) 1-0. Akrapovik – Humpboldt, lichess.org, 2019.

8.c4 Bc5 9.Nf3 h6 10.Be2 c6 11.0-0 (11.cd5 ed5 12.0-0 0-0+=) 11...0-0 12.d4 Ba7 (12...Be7 13.Nc3=) 13.Qa4 Bb6 14.c5 cb5 15.Bb5 Bb5 (15...Bc7 16.Nbd2+=) 16.Qb5+/- Bc7 17.Qb7 Ne4 18.Nc3 Qd7 19.Ne4?? (better 19.Kh1 Nc3 20.Bc3+/-) 19...Bh2!-+ 20.Nh2 (20.Nh2 Qb7 Discovered attack (20...de4 Zwischenzug); 20.Kh2 Qb7 Discovered attack (20...de4 Zwischenzug)) 20...Qb7 21.Nd6 Qc6 (21...Qb4 22.Nf3-+) 22.Nf3 f6 23.Bc3 Na6 24.Ba5? (24.Rb1 Rb8 25.Rb8 Nb8-+) 24...Ra8 (better 24...Nc5!? 25.dc5 Qc5 26.Nb7-+) 25.Bb6 Nc7 (25...Nb8 26.Rb1-+) 26.Nh4? (26.Bc7 Qc7 27.Rb1 Ra2-+) 26...Kh7 (better 26...Nb5 27.Ng6 Qd7 28.Nb5 Qb5 29.Nh4-+) 27.f4? (27.Bc7 Qc7 28.g4 Ra6-+) 27...f5 (27...Nb5!? 28.Nb5 Qb5 29.f5-+) 28.Kh2? (28.Bc7 Qc7 29.Nf3 Qb8-+) 28...Ra6 (28...Nb5!? 29.Nf7-+) 29.Rb1 g5 (better 29...Ne8!? 30.Nf7 Qa4-+) 30.fg5-/+ hg5 31.Nf3 Qd7?? (31...Ne8 32.Ng5 Kg8 33.Ndf7-/+) 32.Ne5?? (better 32.Bc7 g4 33.Ne5+/-) 32...Qg7 (32...Qa4 33.Ndf7 Qa2 34.Rf1-/+) 33.Bc7-+ Qh6 (33...Qc7? 34.Rb7 Qb7 35.Nb7+-) 34.Kg1 g4 35.Rb7?? (better 35.Re1 Qh4 36.Rf1-+) 35...Qe3 36.Kh1 (36.Kh2 Qf4 37.g3 Qd2 38.Kg1 Ra1 39.Rb1 Rb1) 36...Ra1 37.Kh2 (37.Rb1 Rb1 38.Kh2 g3 39.Kh3 Rh1) 37...g3 38.Kh3 Rh1 0-1. AleksandrNekhoroshik - BORIS_DIN, lichess.org, 2020.

8.c4 Bd6 9.Nf3 0-0 10.Be2 c6 11.0-0 Re8 12.d4 (better 12.Be5 Be5 13.Ne5 dc4 14.Nc4=) 12...Qc7 (better 12...dc4 13.Bc4 cb5=+) 13.c5+/- Be7 14.Nc3 (14.b6 Qd8+/-) 14...Bf8 (14...cb5 15.Nb5 Bb5 16.Bb5=) 15.Ne5 (better 15.b6 Qd8 16.Bd3+/-) 15...Ne4? (better 15...cb5 16.Nd7 Nbd7 17.Nb5 Qc6=) 16.Ne4+- de4 17.Qc2 (17.b6 Qd8+-) 17...f6 (better 17...cb5!? 18.Nd7 Nd7 19.Bb5 b6 20.Bd7 Qd7 21.cb6 Qb7+/-) 18.Nd7 Nd7 19.Qe4 e5 (19...f5 20.Qf3+-) 20.Bc4 Kh8 21.Bd3 (21.f4!? Qc8 22.fe5 fe5+-) 21...g6 22.b6 (22.Qh4 Kg7+-) 22...Qb8 (22...Qd8 23.Qh4 f5 24.Qg3+-) 23.Bc4 Bg7 24.Qd3 (24.Qh4 ed4 25.Bd4 f5+-) 24...f5 25.de5 (25.Rd1 f4+-) 25...Ne5 26.Be5 (26.Qc2 Ng4 27.g3 Ne5+-) 26...Qe5 27.Qa3 (27.Qd7+/-) 27...h6? (27...Bf8!?+=) 28.Rd1 (28.Bf7 Rd8 29.Bg6 f4 30.ef4 Qf4+-) 28...g5 Black prepares f4 (28...f4 29.Bf7 Qh5 30.Rd7+/-) 29.Bf1 (29.Rd7!? f4 30.Rb7 fe3 31.fe3 Bf8+-) 29...f4+/- 30.ef4 Qf4 31.Qd3 Rf8 32.f3 (32.Rd2 g4+/-) 32...Be5 (32...g4 33.fg4 Qf2 34.Kh1 Qc5 35.Qb3+=) 33.g3 Qf3 34.Qf3 Rf3 35.Rd8 (35.Rd7 Rb3 36.Kg2 g4+=) 35...Kg7+= 36.Rd7 (36.Kg2 Rf8 37.Rd7 Rf7=) 36...Rf7= 37.Rd3 Kf6 38.Bg2 Ke7 39.h4 (39.Bh3 h5+=) 39...Rf8 (39...gh4!? 40.gh4 Rf4=+) 40.hg5= hg5 41.Bh3 (41.Re3!? Kf6 42.Rf3 Kg7 43.Rd3=) 41...Rd8=+ 42.Re3 Kf6 (42...Rd5!?=+) 43.Kg2 Bd4 44.Re6 Kf7 45.Rh6 (45.Rd6 Rd6 46.cd6 Bb6=+) 45...Bc5 (45...Rb8 46.Rh7 Kf6 47.Kf3-/+) 46.Rh7=+ Kf6 47.Rb7 Rd2 48.Kf1 Rf2 49.Ke1 Rb2 50.Bd7 Rb6 (50...Bb6 51.Bc6 Bf2 52.Kf1 Rb7 53.Bb7 Bg3 54.Kg2-/+) 51.Rc7 (51.Rb6!? Bb6 52.Bc6=) 51...Rb1 52.Kd2 Rb2 (52...Bb4!? 53.Kc2 Rg1-/+) 53.Kc3= Ra2 (53...Rg2!? 54.g4 Ke5 55.Rc6 Kd5=) 54.Rc6+= Ke7 55.Bg4 (better 55.Rc5!? Ra3 56.Kd4 Rg3 57.Bf5+=) 55...Bd6 56.Bf5 Ra3 57.Kc4 Rg3 58.Kd5 Rh3?? (better 58...Rg1-/+) 59.Rd6 (better 59.Bh3 Bf4 60.Bg4+-) 59...Rh4 (59...Rh1 60.Re6 Kf7 61.Ra6+=) 60.Re6 (60.Ke5 g4+/-) 60...Kf7 61.Rb6 Kg7 (61...Ra4 62.Bg6 Ke7 63.Re6 Kf8 64.Ke5+=) 62.Ke5 Rf4?? (better 62...Rh6 63.Rb7 Kf8+/-) 63.Rb7+- Kh6 (63...Kf8 64.Kf6 Rf5 65.Kf5 Ke8 66.Kg5 Kd8 67.Kf6 Kc8 68.Rh7 Kd8 69.Ke6 Kc8 70.Kd6 Kb8 71.Kc6 Ka8 72.Kb6 Kb8 73.Rh8) 64.Rh7 1-0. BeepBeepImAJeep (2735) - yankitaspinar (2560), lichess.org, 2020.

8.Qf3 Bc5 9.Bf6 Qf6 10.Qf6 gf6 11.Nf3 Ke7 12.Be2 (12.d4 Bd6=) 12...c6 13.Nc3 cb5 14.Bb5 Bb5 15.Nb5 Nc6 16.0-0 b6 (16...Ra8 17.Rb1=) 17.d4 Bd6 18.Ra1 Rb8 19.g3 Nb4?? (better 19...Na5+=) 20.Ra7+- Kd8 (20...Kf8 21.Nd6 Kg8+-) 21.c3 (21.Nd6 Nc2 22.Nf7 Kc8 23.Nd6 Kd8 24.Rh7 b5 25.Rh8 Kc7 26.Rb8 Kb8+-) 21...Nd3?? (better 21...Nc6 22.Rf7 Be7 23.Rh7 Kd7+-) 22.Nd6 Rc8 (22...b5 23.Nf7 Ke8 24.Nd6 Kd8 25.Rh7 Rb6 26.Nf7 Ke8+-) 23.Nc8 Kc8 24.Rf7 1-0. alt20 - micheleruxxx (1640), lichess.org, 2015.

8.Nf3 Bb5 9.Bb5 c6 10.Be2 Be7 11.0-0 0-0 12.d4 Ne4 (12...b5 13.Nbd2+-) 13.Nbd2 Ng5 (13...Nd2 14.Qd2 b5 15.Bc3+-) 14.Ng5 Bg5 15.c4 Nd7 16.c5 Nf6 (16...e5 17.Qc2 Qe7 18.de5 Nc5 19.Rb1+-) 17.Qb3 Qb8 (17...Qc7 18.Rb1 Ra8 19.Nf3+-) 18.Rb1 Ne4 (18...Qa7 19.Qb7 Qa4 20.Bd3+-) 19.Ne4 de4 20.Qb7 (20.Ba6 b5 21.cb6 Be7+-) 20...Qb7 21.Rb7 1-0. DEFFM – GuestMMTQ, freechess.org, 2021.

8.Nf3 b6 9.c4 c6 10.Ne5 cb5 (10...dc4 11.bc6 Nc6 12.Nd7 Qd7 13.Bc4=) 11.Nd7+= Nbd7 12.cb5 (12.cd5!? Nd5 13.Bb5+=) 12...Qa8 13.Nc3 Bc5 14.Be2 0-0 15.0-0 h6 16.Qc2 Ne5?? (16...Rc8 17.Rc1=) 17.Na4?? (17.d4!? Bd4 18.ed4 Nc4+-) 17...Nc4? (better 17...Ned7+=) 18.Bc4+- dc4 19.Qc4 Rd8 (19...Nd7 20.Qg4 g6 21.Nc5 bc5 22.Qf4+-) 20.Nc5 bc5 21.Qc5 Rd2 22.Rc1 (22.Bf6!? gf6 23.b6 Rb2+-) 22...Rd5 (22...Qa4 23.h3 Rd1 24.Kh2 Rc1 25.Qc1 Qb5 26.Bf6 gf6 27.Qc3+=) 23.Qc6 (23.Qc4 Ne4 24.Bd4 e5+/-) 23...Qd8 (23...Qa4 24.Qc8 Kh7 25.Bd4+=) 24.h3 (24.Bd4 e5 25.Ra1+/-) 24...Kh7? (better 24...Rd1 25.Kh2 Rc1 26.Qc1 Qb8 27.Kg1 Qb5 28.Bf6 gf6+=) 25.Bf6 (25.Qc2 g6 26.b6 Nd7+-) 25...gf6 (25...Qf6 26.b6 Qb2 27.Qc2 Qc2 28.Rc2 Rb5+/-) 26.b6 Rd1?? (26...Rd2+-) 27.Rd1 Qd1 28.Kh2 Qa1 29.b7 Qe5 30.g3 (30.f4!? Qb2+-) 30...Qf5 (30...Kg7 31.Qb6 Qb8 32.Qa6+-) 31.b8Q Qf2 32.Qg2 Qe3 (32...Qg2 33.Kg2 Kg7 34.e4+-) 33.Qf4 (33.Qf8 Qg5 34.Qf7 Qg7 35.Qc2 f5 36.Qe6 Qf8 37.Qc7 Qg7 38.Qf5 Kh8 39.Qd8 Qg8 40.Qff6 Kh7 41.Qde7 Qf7 42.Qef7) 33...Qa7 (33...Qf4 34.gf4 h5+-) 34.Qf6 Qc7 (34...Qc5 35.Qf7 Kh8 36.Qa8 Qf8 37.Qaf8) 35.Qe4 Kg8 36.Qa8 Kh7 (36...Qd8 37.Qad8 Kh7 38.Qf7) 37.Qah8 1-0. AhmedSultanov - swish987654321, lichess.org, 2019.

8.Nf3 Bc5 9.Be2 0-0 10.0-0 c6 11.Ne5 cb5 12.Nd7 Qd7 13.Bf6 gf6 14.d4 (14.d4 Bd6 15.Bd3=). WG_Anonymous – Anonymous, lichess.org, 2021.

8.Nf3 Qe7 9.Ne5 c6 10.Nd7 (10.Be2 cb5 11.Nd7 Qd7 12.Bf6 gf6=) 10...Nbd7= 11.c4 dc4 12.Bc4 cb5 (12...Qc5 13.Qb3=) 13.Bb5 Qb4 14.Nc3 Be7 15.0-0 0-0 16.Qe2 (16.Qf3 b6+=) 16...Ra8 17.Rb1 Qc5 18.Na4 (18.d4 Qc7 19.Bb2 Bd6+=) 18...Qc2 19.Bd3?? (better 19.Nc3 Nc5 20.d4 Qe2 21.Be2=) 19...Qa4-+ 20.Bd4 (20.Bf6 Nf6 (worse 20...gf6 21.Rb7 f5 22.Qf3-+) 21.Rb7 Bd6-+) 20...Bc5 (20...e5 21.Bc3-+) 21.Bc3 Ne4 (21...Ra7 22.Bb5 Qc2 23.Bd3-+) 22.Bb5?! (22.Bg7 Nf2 23.Ra1 Qa1 24.Ba1 Nd3 25.Bc3=) 22...Nc3 23.dc3 Qa2 (better 23...Qe4 24.Bd3 Qc6-+) 24.Qa2=+ Ra2 25.Bd7 g6 26.c4 b6 27.Bb5 Kg7 28.g3 h5 29.e4? (better 29.Kf1=+) 29...Rf2-+ 30.Kh1 Re2 31.Bc6 Rc2 32.Rd1 (better 32.Bb5-+) 32...Rc4 33.Rd7 Bd4 34.Bb5 Rc1 35.Kg2 Rc2 36.Kf3?? (36.Kf1 Bc5 37.Be2 Kf6-+) 36...Rc3 (36...Rf2) 37.Ke2 Rc2 (better 37...Bg1!? 38.Bd3-+) 38.Kd3?? (38.Kf3 Rf2) 38...Rh2?? (38...Rb2!? 39.Bc4 Be5 40.Be6 Kf6 41.Bf7 Rh2-+) 39.Rd4 (better 39.Kd4!? Rg2 40.Rb7 Rg3 41.Bc4= (worse 41.Rb6 h4 42.Be2 h3-/+)) 39...Rg2-/+ 40.Rd7 (40.Rd6 Rg3 41.Ke2 h4-+) 40...Rg3 41.Kd4 h4 (41...e5!? 42.Kd5 h4 43.Kd6-+) 42.Bc4-/+ Kh6 (better 42...Kf8 43.Rd8 Ke7-+) 43.Rf7= h3 44.Be6 h2 45.Rh7?? (better 45.Rf8 Rg2 46.Rh8 Kg7 47.Rh3=) 45...Kh7-+ 46.e5 h1Q 47.Bd5 (47.Bg8 Kg8 48.e6 Rg4 49.Ke5 Qd1 50.e7 Qd4 51.Ke6 Re4) 47...Qh4 (47...Qd1 48.Ke4 Qg4) 48.Be4-+ Rg4 49.Kd5 Re4 50.Ke6 (50.Kc6 Rc4 51.Kd7 Qd4 52.Ke8 Rc7 53.e6 Qh8) 50...Qg5 51.Kd6 (51.Kd7 Qe5 52.Kc6 Qc5 53.Kb7 Re7 54.Kb8 Qd6 55.Kc8 Qc7) 51...Qe5 52.Kc6 Re1 (52...Qc5 53.Kb7 Re7 54.Kb8 Qd6 55.Kc8 Qc7) 53.Kb7 ½–½. ZZMeB4 (1695) – look (1710), caissa.com, 2007.

9.Bc4 Bb4 10.Nf3 0-0 11.0-0 Qe8 12.Nc3 Bc3= 13.Bc3 Bb5 14.Bb5 Qb5 15.Bf6 gf6 16.Qa1 e5 17.Rb1 Qc6 18.d4 e4 19.Nd2 f5 20.g3 Na6 21.Rc1 (21.Qa5!?=) 21...Qg6 22.Nc4 h5 (22...Qe6 23.Qb2 Qd5 24.Qe2=+) 23.Ne5 Qg7 (23...Qe6 24.Qb2=) 24.h4 (24.Qb2 b6+/-) 24...c6 (better 24...f6!? 25.Nc4 Qd7=) 25.Nc6 bc6 (25...Qf6!?+/-) 26.Qa6+- f4 (26...Qg4 27.Qc6 Rb8 28.d5+-) 27.ef4 (27.Rc5!? f6 28.ef4 Qg4 29.Qc6 Qd1 30.Kh2 Qd4+-) 27...e3 (27...Qd4 28.Qc6 e3 29.Qb5 ef2 30.Kf1+/-) 28.Qc6 ef2 29.Kf2 Qd4 30.Kg2 Rb8 31.Rc2 Rb1 (31...Qd3 32.Qc5+/-) 32.Qc8 Kh7? (better 32...Kg7 33.Qc3 Rg1 34.Kh2 Rd1+/-) 33.Qf5+- Kg7 34.Qg5 Kf8?? (34...Kh7 35.Qh5 Kg7 36.Qe5 Qe5 37.fe5 Rb5+-) 35.Rc8 (35.Rc8 Qd8 36.Rd8) 1-0. BeepBeepImAJeep (2610) - Gesandter (1960), lichess.org, 2017.

9.Bc4 Bc5 10.Nf3 0-0 11.0-0 c6 12.Nc3 Qe8 13.Ne5 Nd5 (13...Bd6 14.d4=) 14.Nd7 Nd7 15.d4 Nc3 16.Bc3 Bb6 (16...Bd6 17.bc6 Nb6 18.Bd3+=) 17.Qb3 (better 17.Qf3+-) 17...Bc7? (better 17...Qe7+-) 18.Bb4+- c5 19.dc5 (19.Bc5?! Nc5 20.dc5 Qe7+=) 1–0. GuestCMTG – GuestTLKY, freechess.org, 2017.

9.Bc4 Bc5 10.Nf3 0-0 11.0-0 Qe8 12.Bf6 gf6 13.d4 Bd6 14.Nc3 f5 (14...Qe7 15.Ne4+-) 15.Qb3 (15.Qe2 Qe7+-) 15...Qe7 16.e4 (16.Ra1 Rd8+-) 16...Qf6?? (better 16...fe4 17.Ne4 Bf4+-) 17.e5+- (17.e5 Qh6 18.ed6 cd6 19.Qa3+-) 1–0. GuestSFJC – guestKOKO, freechess.org, 2018.

9.Bc4 Bc5 10.Nf3 b6 11.0-0+= c6 12.Nc3 cb5 (12...0-0 13.d4 Bd6 14.Qb3+=) 13.Nb5 Bb5 (13...0-0!?+=) 14.Bb5+- Nbd7 (14...Kf8 15.Qc2+-) 15.d4 (15.Bf6 gf6 (15...Qf6?? 16.Qa4+-) 16.Qb3 Bd6+-) 15...Bb4 (15...Bd6 16.d5! Nd5 17.e4+-) 16.Qb3 Ba5 (16...Be7 17.d5! Kf8 18.Bf6 Bf6 19.Bd7 Qd7 20.Rd1+-) 17.Ne5 (17.d5!? Ke7 18.Nd4 Nc5 19.Nc6 Kf8+-) 17...0-0+- 18.Nc6 Qc7 19.Bb2 (better 19.Rc1 Nb8 20.d5+-) 19...Ne4?? (better 19...Ng4 20.g3 Nb8+-) 20.Rc1+- Nd2 (20...Qb7 21.Ne7 Kh8 22.Bc6+-) 21.Qa4 (better 21.Ne7 Kh8 22.Rc7 Nb3 23.Rd7+-) 21...Ra8 (21...Qb7 22.Ba3 Re8+-) 22.Ne7 Kf8 23.Rc7 Ke7 24.Rd7 Kf6 25.d5 (25.d5 Bc3 26.Bc3 e5 27.Be5 Kg5 28.Qf4 Kh5 29.Be2 Nf3 30.Qf3 Kg5 31.Qh5) 1–0. GuestRFCC – GuestNPTX, freechess.org, 2016.

9.Bc4 Bc5 10.Nf3 c6 11.0-0 cb5 12.Be2 Bc6 13.d4 Bd6 14.Nbd2 Nbd7 15.Ne5 Be5 (15...0-0 16.Bd3=+) 16.de5= Nd5 17.Ne4 0-0 18.Nd6 Attacks the isolani on b5 18...f6 (18...b4 19.Qd4=+) 19.ef6 N7f6 20.Nb5 Bb5 21.Bb5 Qb6 22.Bc4 Qc5 23.Qb3 Rc8 24.Bc3?? (better 24.Be2+=) 24...Qc4-+ 25.Qc4 Rc4 26.Bd4 Nd7 27.Rb1 (27.Rd1 b5-+) 27...b6 28.g3 (28.Rd1 e5 29.Bb2 N5f6-+) 28...e5 29.Ba1 Nc5 (29...Kf7 30.f4-+) 30.f3 (30.Be5 Rc2 31.Rd1-+) 30...Nd3 (better 30...Ne3 31.Be5 Nd3-+) 31.Kg2 (31.Rd1 N5b4-+) 31...Rc2 (31...Ne3 32.Kh1 Nf2 33.Kg1 Nh3 34.Kh1-+) 32.Kh3 Ne3 33.Rb3 Nf2 34.Kh4 Nf5 35.Kg5 g6 (better 35...Nd4 36.Rb6 Nf3 37.Kf5-+) 36.Rb6 Nd3 37.Kf6 (37.g4 Ne7 38.Rd6 Rc5-+) 37...Rc8 38.g4 Nd4 39.Bd4 ed4 40.Rd6 Nb4 (better 40...Rf8!? 41.Ke6 Nf4 42.Ke5-+) 41.Rd4 Rc6 (41...Rf8!? 42.Ke6 Nc2 43.Rc4-+) 42.Kg5 Na6?? (42...Rc5 43.Kf6 Nd5 44.Ke6 Nc7 45.Ke7-+) 43.f4? (43.Rd8 Kf7 44.Rd7 Ke8 45.Rh7 Nc7=) 43...Kg7?? (better 43...Nc5 44.f5 h6 45.Kf4 gf5 46.gf5 Kf7-+) 44.Rd7=+ Kf8 45.h4? (better 45.Rh7 Nc5 46.f5 Ne4 47.Kf4=) 45...Nc5-+ 46.Rh7? (46.Ra7 Ne4 47.Kh6 g5 48.Kh7 gh4 49.g5-+) 46...Kg8 (better 46...Ne4 47.Kh6 g5 48.Kh5 gf4-+) 47.Re7+= Ne4?? (47...Ne6 48.Kg6 Nf4 49.Kg5 Nh3 50.Kf5+=) 48.Kh6 (48.Re4 Kf7+-) 48...Rc5?? (48...g5 49.Kh5 gh4 50.Re4 h3+-) 49.Kg6 (better 49.Re4!? Rc6+-) 49...Rc6 50.Kf5 Nd6 51.Ke5 Nf7 52.Kd5 Rd6 53.Kc5 Rd3 54.Re4 (54.Re6 Rg3 55.g5 Rh3 56.Rg6 Kf8+/-) 54...Rf3 (54...Rg3 55.f5 Nh6 56.Kd6+=) 55.h5 (55.g5!?+-) 55...Rg3+/- 56.g5 (56.f5 Nh6 57.Kd6 Ng4=) 56...Rg4? (56...Ng5 57.Re7+=) 57.Kd5 (better 57.g6!?+-) 57...Ng5+= 58.fg5 (better 58.Rc4+=) 58...Re4?? (better 58...Rg5 59.Ke6 Rh5=) 59.Ke4+- Kg7 60.Kf5 White plans g6 60...Kh7 61.h6 Kg8 62.Kf6 Kh8 (62...Kf8 63.h7 Ke8 64.Ke6 Kd8 65.Kd6 Kc8 66.h8Q Kb7 67.Qb2 Kc8 68.g6 Kd8 69.Qh8) 63.g6+- Kg8 64.g7 (64.h7 Kh8 65.g7 Kh7 66.Kf7 Kh6 67.g8Q Kh5 68.Qg3 Kh6 69.Qg6) 64...Kh7 65.Kf7 Kh6 66.g8Q (66.g8Q Kh5 67.Qg3 Kh6 68.Qg6) 1-0. BeepBeepImAJeep (2630) - robrml (1935), lichess.org, 2016.

9.Bc4 c6 10.Nc3 Qa5 11.bc6 Nc6 (11...Bc6 12.Nf3=+) 12.Nf3= Be7 13.0-0 0-0 14.Qb3 Qh5 (14...Rb8 15.Nb5=) 15.Be2 Ra8 (15...Rb8 16.d4=) 16.d4 (16.Qb7 Ra7 17.Qb2 Qh6+/-) 16...Qh6 (16...Bc8 17.Rc1=) 17.Bb2 (17.Qb7!? Ra7 18.Qb3+/-) 17...Bd6 18.Nb5 (18.Qb7? Rb8 19.Qa6 Rb2-+) 18...Bb8 19.Ne5 Ne5 20.de5 Nd5 (20...Bc6 21.Nd6=) 21.f4 (21.Nd6 Bc6+=) 21...Bc6 22.Nd4 Qg6?? (22...Ba7!?=) 23.Bf3 (better 23.Nc6 Ba7 24.Na7 Ra7 25.Rc1+-) 23...Ba7+/- 24.Nc6 (24.Ra1 Be8 25.Bc1+-) 24...Be3?? (better 24...bc6 25.Bd4 Rb8=) 25.Kh1 (25.Qe3! bc6 26.Qc1 Rd8+-) 25...bc6 26.Qb7?? (better 26.Bd5 cd5 27.Qe3+-) 26...Rd8-/+ 27.Qc6 Qd3 (27...Bf4 28.Bd5 Qh6=) 28.Rd1= Qb3 (28...Qf5 29.Bd5 ed5 30.Rd5=) 29.Bc1 (29.f5!? Qb2 30.fe6 fe6 31.Qe6 Kh8 32.Bd5=) 29...Bc1 30.Qc1 Rb8 31.Qd2 h6 32.h3 Nb4 (32...Ne3 33.Rc1=) 33.Qd6 (better 33.Be4 g6 34.Kh2+=) 33...Nc2? (33...Nd5 34.Rd4+=) 34.Rc1 (better 34.Be4 Rf8 35.Qc5+-) 34...Ne3+= 35.Rc3 Qb2?? (better 35...Qb1 36.Kh2 Nf1 37.Kg1 Nd2 38.Kh2 Nf3 39.Rf3 Ra8=) 36.Re3+- Qb1 (36...Rb4 37.Qd8 Kh7 38.Qd3 g6 39.Re4+-) 37.Kh2 Qb7 (37...Rc8+-) 38.Bb7 Rb7 39.Qd8 (39.Rc3 Rb2 40.Rc8 Kh7 41.Qd3 g6 42.Qd8 Rg2 43.Kg2 f6 44.Qd7) 39...Kh7 40.Qd3 g6 41.Qe4 (41.Qd8 g5 42.Rc3 Re7 43.Qe7 Kg7 44.Qf6 Kh7 45.Qf7 Kh8 46.Rc8) 41...Re7 42.Qf3 (42.Rc3 Re8 43.Qb7 Rf8+-) 42...Rd7 (42...Rc7 43.Rb3 Rc8 44.Qb7+-) 43.f5! Re7 (43...ef5 44.Qc6 Combination; 43...gf5 44.Rc3 Combination) 44.fg6 (44.Qa8 h5 45.f6 Rb7 46.Qf8 h4 47.Qg7) 44...Kg6 45.Qf6 Kh5 (45...Kh7 46.Rg3 Rd7 47.Qg7) 46.Qe7 (46.g4) 46...f6 (46...Kg6 47.Qf6 Kh7 48.Rg3 h5 49.Qg7) 47.g4 (47.Qf7 Kg5 48.Qf6 Kh5 49.g4) 47...Kh4 (47...Kg6 48.ef6 Kg5 49.Qg7 Kf4 50.Qh6) 48.Qf6 1-0. BeepBeepImAJeep (2760) - Maurois (2455), lichess.org, 2020.

9.Bc4 c6 10.Nc3 cb5 11.Bb5 Qb6 12.Bd7 Nbd7 13.Nf3 Be7 14.0-0 0-0 15.Qc2 Qc7 16.d4 Rc8 17.Rb1 (17.Qb3!?=) 17...Nd5-/+ 18.Rb3 (better 18.Ne1!? Qa5 19.Qa2 Qa2 20.Na2=+) 18...Bb4-+ 19.e4? (better 19.Rb4 Nb4 20.Qe2-+) 19...Nc3 (better 19...Bc3 20.ed5 Ba1 21.Qc7 Rc7-+) 20.Rb4=+ Ne2?? (better 20...Nd5 21.Qc7 Rc7=+) 21.Qe2+- Qc1 22.Qe1 (22.Qf1 Qf1 23.Kf1 Rc1 24.Ke2 Ra1 25.Rb7 Nf8+-) 22...Qe1 23.Ne1 Rc1 24.Bc3! Rc3 25.Rb7 Nf8 26.Kf1 Rc1 (26...f5 27.ef5 ef5 28.Ke2+-) 27.Ke2 Ra1 28.Rb2 g6 29.f4 Kg7 30.Rd2 (30.Nd3 Ra7+-) 30...Ra4 31.Nf3 Ra3 (31...Nd7 32.Ke3+-) 32.Rd3 (32.d5 ed5 33.ed5 h6+-) 32...Ra2+/- 33.Nd2 Ra4 34.Ke3 Nd7 35.Nf3 Nf6 36.h3 h5 37.d5?? (37.g3!? Ne8+-) 37...ed5?? (better 37...Re4 38.Kd2 Nd5-/+) 38.ed5 (38.e5 Re4 39.Kd2 Nh7+/-) 38...Re4+= 39.Kf2 Rf4 40.d6 Ne4? (better 40...Nd7+=) 41.Ke3+- g5?? (41...Nc5 42.d7 Re4 43.Kd2 Nb7+-) 42.d7 Nf6 43.d8Q Re4 44.Kf2 Re2 (44...Re8 45.Qa5 Ne4 46.Kg1 g4+-) 45.Ke2 Ne4 46.Qd4 f6 (46...Nf6 47.Ng5 h4 48.Ne4 Kg8 49.Qf6 Kh7 50.Qf7 Kh6 51.Rd6) 47.Qe4 f5 (47...Kh6 48.Rd7 f5 49.Qe6) 48.Qf5 (48.Rd7 Kf6 49.Qc6) 48...g4 (48...Kg8 49.Qg6 Kf8 50.Ne5 Ke7 51.Qf7) 49.Qg5 (49.Qg5 Kf7 50.Rd7 Ke6 51.Qd5 Kf6 52.Qf7; 49.Rd7 Kg8 50.Qe6 Kf8 51.Qf7) 1-0. BeepBeepImAJeep (2555) - giannistst12 (2110), lichess.org, 2016.

9.Bc4 c6 10.Nc3 cb5 11.Nb5 Bc6 12.Nf3 Bb5 (12...Be7!?=) 13.Bb5+- Nc6 (13...Nfd7 14.0-0+-) 14.Qa4 Bd6 15.Bc6 bc6 16.Qc6 Qd7 17.Qa8 Qd8 18.Qd8 Kd8 19.Bf6 gf6 20.0-0 Kd7 21.Ra1 Be5 (21...Rb8 22.d4+-) 22.Ra7 (better 22.Ne5 fe5 23.Ra7 Kd6 24.Rf7+-) 22...Kd6?? (better 22...Bc7!?+-) 23.Rf7 (better 23.d4!? Bd4 24.Nd4 Rf8+-) 23...Ra8 24.g3 Ra1 25.Kg2 Ra2 (25...Bb2 26.d4+- (worse 26.Rh7 Rc1+-)) 26.Rh7 (better 26.d4 h5+-) 26...Ba1 (26...Bb2 27.Rf7 Kd5 28.d4+-) 27.d4 e5 ½–½. GuestKDQB – GuestBJLZ, freechess.org, 2018.

9.Bc4 Nd5 10.Nf3 c6 11.bc6 Nc6 12.0-0 Bd6 (12...Nb6 13.Bb5=) 13.Nc3 (13.Bg7!? Rg8 14.Bb2+/-) 13...Nc3 14.Bc3 0-0 15.d4 Qc7 16.Qb3 e5 (better 16...b5!? 17.Bd3 b4=) 17.de5+/- Ne5 18.Ne5 Be5 19.Be5 Qe5 20.Qb7 Be6 21.Be6 Qe6 22.h3 g6 23.Rc1 Re8 24.Qc6 Qe7 25.Qc7 Qe6 26.Rc4 Kg7 27.Rf4 Re7 28.Qc3 f6 29.h4 h6 30.g3 g5 31.hg5 hg5 32.Rd4 Qe5 33.Qd2 Re8 34.Rd7 Kg6 (34...Re7 35.Rd8+/-) 35.Rd5 (35.Qd3 f5+-) 35...Qe6 (35...Qe4 36.Rd4 Qb1 37.Kg2+/-) 36.Qd3 f5?? (better 36...Qe4+/-) 37.Rd6+- Re7 (37...Kf6 38.Qd4 Kf7 39.Re6 Re6 40.Qd7 Kf6 41.Qd8 Kg6 42.Qg8 Kf6 43.f4 gf4 44.ef4+-) 38.Re6 (38.g4!? Kg7 39.Re6 Re6 40.gf5 Re7+-) 38...Re6 39.g4 Rf6 40.Kg2 Kh6 (40...Rf7 41.Kf3 Kf6 42.Qd8 Ke6 43.Qe8 Kf6 44.gf5+-) 41.gf5 Re6 (41...Rf7+-) 42.fe6 g4 (42...Kg7 43.Qe4 Kf6 44.e7 g4 45.e8Q Kg5 46.Q8e7 Kh5 47.Q4h7) 43.Qf5 (43.e7 Kg5 44.e8Q g3 45.Qeg6 Kh4 46.fg3) 43...g3 44.f4 Kg7 45.e7 Kh6 46.Qg5 (46.e8Q Kg7 47.Qef8) 46...Kh7 47.Kg3 (47.e8N Kh8 48.Qg7) 47...Kh8 48.e8Q Kh7 49.Qeh5 (49.Qgg6) 1-0. BeepBeepImAJeep (2400) - claymore (2265), lichess.org, 2015.

10.Qc2 0-0 11.Nf3 c6 12.Ng5 cb5?? (better 12...e5=) 13.Bf6+- Qf6 1-0. AhmedSultanov (1875) - akvanaft007sex (1855), lichess.org, 2020.

10.Nf3 0-0 11.0-0 c6 12.Nc3 cb5 13.Bb5 Bb5 14.Nb5 Qb6 15.Nd6+/- Qd6 16.d4 (better 16.Bf6!? gf6 17.Qa4+/-) 16...Nc6 17.Bb2 Rb8 18.Qb3 b5 19.Rc1 Na5 20.Qc3 Nc4 21.Ne5 Nb2 (21...Nd5 22.Nc4 bc4 23.Qc2=) 22.Qb2+= h6 23.Rc5 Attacking the isolated pawn on b5 23...b4 (23...Qb6 24.Qc2+=) 24.h3 (24.Nc6 Ra8 25.Nb4=) 24...Nd5 25.Rc6 Qd8 26.Rc4 Exerts pressure on the isolated pawn 26...f6? (better 26...Rc8!?=) 27.Nc6+/- Qc7 28.Qb3 (better 28.Qc1!? Ra8 29.Nb4+/-) 28...Rb6 29.Nb4?? (better 29.Ne5! Qd8 30.Nd3+=) 29...Qb7-+ 30.e4 Nb4 31.Rc5? (31.Qg3 Nc6-+ (31...Qe4? 32.Rc7 Qe1 33.Kh2+-)) 31...Na6 (better 31...Qe4 32.Qe3 Qe3 33.fe3 Nd5-+) 32.Qc4?? (32.Rc8 Kf7 33.Qc2-+) 32...Nc5 33.dc5 Rb1 34.Kh2 Qc7 35.g3 Rb8 (better 35...Qc6!? 36.h4-+) 36.Qe6 Kh8 37.Qf5 Rd8 (37...Rb5 38.Qd5-+) 38.Kg2 Rc8 39.e5 (39.Kf3-+) 39...Qe5 (39...Qc5 40.Qe4 fe5 41.h4-+) 40.Qg4?? (better 40.Qc8 Kh7 41.Qc6+-) 40...Qd5 41.Kh2 (41.Qf3 Qc5 42.h4 h5-+) 41...Rc5 42.h4 (42.Qf4-+) 42...Rc2 (42...Rc1 43.Qc8 Rc8 44.Kh3 Qh1 45.Kg4 Rc4 46.f4 g6 47.h5 Qh5) 43.Qf4-+ Qd2 (43...Rb2 44.Qe3 Rb1 45.Qe8 Kh7 46.Kh3 Qf3 47.Qg6 Kg6 48.h5 Qh5 49.Kg2 Qh1) 44.Qb8 (44.Qd2 Rd2 45.Kg2 h5-+) 44...Kh7 45.Qb6 (45.Qf4 Qf2 46.Qf2 Rf2 47.Kg1 Rb2-+) 45...Qf2 (better 45...Qe1 46.h5-+) 46.Qf2 Rf2 47.Kh3 (47.Kg1 Rb2 48.Kf1 h5-+) 47...Rf5 (better 47...h5 48.g4-+) 48.Kg4 (48.Kh2 Kg6 49.g4 Rb5-+) 48...Rb5 49.h5 g6 50.Kh4 gh5 51.Kh3 Rb4 52.Kg2 Kg6 53.Kf3 Kg5 Black prepares the advance h4 54.Kf2 Kg4 55.Kg2 h4 (55...Rb2 56.Kg1 Kf3 57.g4 hg4 58.Kh1 g3 59.Kg1 Rb1) 56.Kf2 hg3 57.Kg1 (57.Ke2 g2 58.Ke3 g1Q 59.Kd2 Qd4 60.Kc1 Rc4 61.Kb1 Qb6 62.Ka2 Ra4) 57...Kf3 58.Kf1 Rb1 0-1. BeepBeepImAJeep (2600) - dimgal (2055), lichess.org, 2016.

10.Nf3 0-0 11.0-0 c6 12.Nc3 Nd5 13.Qb3 Nc3 14.Qc3 cb5?? (better 14...f6+=) 15.Qg7 1-0. BeepBeepImAJeep (2620) - footix (2070), lichess.org, 2017.

10.Nf3 0-0 11.0-0 Qe7 12.d4 e5?? 13.de5+- (13.Ne5?! Be6+/-) 13...Be5 14.Be5 Bg4 15.Nbd2 Re8 16.Qa1 Nbd7 17.Bd4 (17.Bc7 Rc8 18.Rc1 Rc7 19.Bf7 Qf7 20.Rc7 Qd5+-) 17...b6 (17...c5 18.bc6! bc6 19.Rb1+-) 18.Ng5 Bh5 19.Rc1 h6 20.Nh3 Ne4 (20...Bg4 21.Nf4+-) 21.Ne4 Qe4 22.Nf4 Bg4 (22...Ra8 23.Qc3 Qf5 24.Bd3+-) 23.Bg7 Ne5 24.Be5 (better 24.Bd5 Qf5 25.Be5 Qe5 26.Qe5 Re5 27.e4+-) 24...Re5 (24...Qe5 25.Nd5 Qa1 26.Ra1+-) 25.Bf1 (25.Bd3 Qd3 26.Nd3 Rb5 27.Qa8 Kg7+-) 25...Bd7 (25...Rc5 26.Rc5 bc5 27.h3+-) 26.Qb1 (better 26.Bd3 Qd3 27.Nd3 Rb5 28.Rc7+-) 26...Qb7 (26...Qb1 27.Rb1 Rc5 28.Bd3+-) 27.Rd1 Bb5 (27...Qc8+-) 28.Bb5 Rg5 (28...Qc8 29.Ng6! Rb5 30.Qb5+-) 29.Bf1 (29.Rd8 Kg7 30.Qa1 f6 31.Rd7 Kg8 32.Bc4 Rd5 33.Qf6 b5 34.Qg7) 29...h5 (29...Qc8+-) 30.Rd8 Kg7 31.Qb2 (31.Qa1 Re5 32.Qe5 f6 33.Rd7 Kf8 34.Qf6 Ke8 35.Qe7) 31...f6 (31...Re5 32.Qe5 f6 33.Rd7 Kf8 34.Qf6 Ke8 35.Qe7) 32.Rd7 Kh6 (32...Kg8 33.Bc4 Qd5 34.Bd5 Rd5 35.Qa2 Kf8 36.Qa8) 33.Qf6 (33.Qf6 Rg6 34.Qg6) 1-0. BeepBeepImAJeep (2560) - Koki22 (2240), lichess.org, 2016.

10.Nf3 0-0 11.Nc3 Qe8 12.0-0 Bb4 13.Qb3 Bc3 14.Bc3 Ne4 15.Bb2 (15.Bb4 Nd6 16.b6 Qc8+-) 15...b6 (15...Nd6 16.b6 Nc4 17.Qc4 cb6 18.Ra1+=) 16.d3 (16.Ba3 Nd6 17.Ra1 e5+-) 16...Nc5 (16...Nd6 17.Ba3+-) 17.Qc3 (17.Qb4!? f6 18.Ra1 Nb7+-) 17...Bb5?? (better 17...f6 18.Ba3 Bb5 19.Bb5 Qb5+-) 18.Qg7 1–0. GuestCNQL – smirk, freechess.org, 2017.

10.Nf3 Qe7 11.0-0 0-0 12.d4 Nd5 13.Nbd2 Nf6 (13...c6 14.Qb3=) 14.e4+= Nh5 15.g3 Bb4 16.e5 (16.Qb3 Rc8+=) 16...Bd2 (better 16...c6!?=) 17.Nd2 g6 18.Ne4 Ng7?? (18...f5 19.ef6! Nf6 20.Nf6 Qf6+-) 19.Nf6+- White prepares d5 19...Kh8 20.Bc3 (better 20.Qd2!? Nf5 21.g4 Kg7 22.gf5 Qd8+-) 20...Nh5 (better 20...Rc8!?+-) 21.Nh5 gh5 22.Qh5 Rg8 (22...Be8 23.d5 Qc5 24.Qh6+-) 23.d5 (better 23.Ra1+-) 23...Qg5?? (better 23...Qc5 24.Qh4 Rg6+-) 24.Qf7 c6 (24...Be8 25.Qe6 Qg6 26.Qg8 Qg8 27.e6 Qg7 28.Bg7 Kg7 29.Ra1+-) 25.de6 (better 25.bc6 Bc6 26.dc6 Nc6 27.Be6+-) 25...Qg6 (25...Be8 26.f4 Qg7 27.Qg7 Rg7+-) 26.Qf6 (better 26.ed7 Qf7 27.Bf7 Kg7 28.e6 Kh6 29.Bg8 Kg5 30.d8Q Kf5 31.Bh7 Ke6 32.Re1 Kf7 33.Qf6) 26...Qf6 (26...Qg7 27.Qg7 Kg7 28.ed7 Nd7 29.e6 Nf6 30.bc6 bc6+-) 27.ef6 h6 (27...h5 28.f7 Kh7 29.Bd3 Rg6 30.f8Q Be6 31.Qg7) 28.f7 Kh7 29.Bd3 Rg6 30.f8Q (30.f8Q Be6 31.Qg7) 1-0. BeepBeepImAJeep (2720) - miki16 (1680), lichess.org, 2017.

10.Nf3 c6 11.Nc3 cb5 12.Nb5 0-0 13.0-0 Bb5 14.Bb5 Nc6 15.Qa4 Qb6 16.Rc1 Rc8 (16...Nd5 17.Bc6 bc6 18.Qc6 Qc6 19.Rc6+=) 17.Bd4+- Bc5?? (better 17...Qd8 18.Bc6 bc6 19.Rc6 Ra8+-) 18.Rc5+- Nd4 (18...Nd7 19.Rc2 Qc7+-) 19.Rc8 (19.Rc8 Qd8 20.Rd8 Ne8 21.Re8) 1–0. DEFFM – GuestYRVV, freechess.org, 2018.

13.Bb5 Bb5 14.Nb5 Qb6 15.Nc3 (15.Qe2 Nc6=) 15...Nc6 16.Qc2 Rd8 17.Rb1 Qc7 18.h3 Ne5 (18...Nb4!? 19.Qb3 Rd3=) 19.Ne5+= Qe5 20.Rb7 Nd5 (20...Ra8 21.Bb2 (worse 21.Re7 Ra1 22.Nd1 Qb8-/+) 21...Bd6 22.f4+/-) 21.Bb2 Nc3? (21...Bd6 22.Nd5 Qd5 23.Rb3+/-) 22.Bc3 (better 22.Re7 Ne2 23.Kf1+-) 22...Qd5?? (better 22...Qg5+/-) 23.Re7+- Qd6 24.Ra7 1-0. BeepBeepImAJeep (2530) - ethansaya (1860), lichess.org, 2017.

13.Bb5 Bb5= 14.Nb5 Qd7 15.Qb3 Na6 (15...Nc6 16.Bf6 Bf6 17.d4=) 16.d4 (16.Bf6 gf6 17.Rc1 Nb4+=) 16...Nd5 (16...Nb4 17.Nc3=) 17.Rc1 (better 17.Ne5!? Qe8 18.Nc3+-) 17...Rc8= 18.Rc8 Qc8 19.Bb2 h6 (19...Nab4 20.Nc3=) 20.h3 Nac7 21.e4 Nb5 22.ed5 ed5?? (better 22...Qd7 23.de6 fe6=) 23.Qb5+- Qc6 24.Qc6 bc6 25.Ne5 c5 (25...f6 26.Nc6 Bd6 27.Kf1+-) 26.Ba3 f6 (26...Bf6 27.Bc5 Bg5 28.Nd3+-) 27.Nf3 Kf7 28.Bc5 (better 28.dc5!? Ke8+-) 28...Bc5 (28...Bd8+-) 29.dc5 1–0. Wilting – Windridge, Bocholt, 1969.

13.Nb5 Bb5 14.Bb5 Nc6 15.Qa4 Nb4 (15...Qd5 16.d3+=) 16.d4 (16.Be5 Qa8+-) 16...Nbd5 17.Rc1 Qa8 18.Qb3 Qa3 19.Qa3 (19.Qc2 Ra8+=) 19...Ba3 20.Rb1 b6 21.Bc6 (21.g3 g6+=) 21...Rb8 22.Ne5 Bd6 23.Nc4 Attacking the isolated pawn on b6 23...Bc7 (23...Be7 24.Rb3+=) 24.Bb5 Ne4 25.f3 (25.Rb3 Ra8 26.Bb2 Ra2+-) 25...Nd6 (25...Nec3 26.Bc3 Nc3 27.Rb3 Nb5 28.Rb5=) 26.Nd6+= Bd6 27.Bb2 (better 27.e4!? Nc7 28.Bd3+=) 27…Ne3=+ 0–1. GuestKTQQ – GuestKZFW, freechess.org, 2017.

13.Nb5 Qb6 14.Qb1 Na6 (14...Rc8 15.d3+=) 15.Bd4 (15.Ng5 Rc8 16.Be2 h6 17.Bf6 Bf6 18.Qh7 Kf8+=) 15...Qa5 16.Ng5 (better 16.Nc3 Nb4 17.Ne5+=) 16...h6?? (better 16...Rc8 17.Be2 Qd2=) 17.Bf6+- hg5 18.Be7 (18.Be7 Re8 19.Bg5+-) 1–0. DEFFM – GuestJBZQ, freechess.org, 2018.

13.Nb5 Qb6 14.Qb3 Nc6 15.Nfd4?? (15.Qb1 Ra8=) 15...Rc8?? (15...Na5 16.Qd3 Nc4 17.Qc4-+) 16.Rb1?? (better 16.Nc6 bc6 17.Nd4=) 16...Na5-+ 17.Qa2 Nc4 18.Na3 (18.Na7 Nd2 19.Nc8 Qb1 20.Qb1 Nb1 21.Ne7 Kf8-+) 18...Qc7 (better 18...Na3 19.Rf1 e5-+) 19.Rc1 (19.Nc4 Qc4 20.Qc4 Rc4 21.f4-+) 19…Ba3 (19...Ba3 20.Rc2 Ba4-+) 0–1. GuestPKCH – GuestMVGP, freechess.org, 2017.

13.Nb5 Nc6 14.Qb1 Na5 15.Be2 Bc6+=.

13.Nb5 Nc6 14.d4 Na5 15.Bd3 Qb6 16.Qb1 Nd5 (16...Bb5 17.Bb5 Ra8 18.Ne5=) 17.Ne5 (17.Bh7!? Kh8 18.Bd3+/-) 17...Bb5+= 18.Qb5 (18.Bb5 Ra8=) 18...Qb5= 19.Bb5 Nb3 20.Bb2 Nd2 (20...Ra8 21.Rb1=) 21.Rc1 Bf6 22.g3 (22.Nd7 Ra8+=) 22...Be5 23.de5 Nf3 (23...Rd8 24.h3=) 24.Kg2+= Nd2 25.Bd4 Nb3 26.Rb1 Nd4 27.ed4 Rb8 (27...Rc8 28.Bd3 b6 29.Ra1=) 28.Bc6+= b6 (28...Ne7!? 29.Bb7 Nc6+=) 29.Bd5+/- ed5 30.Rb5 Kf8 31.Rd5 b5 32.Rc5 b4 33.Rc2 b3 34.Rb2 Ke7 35.Kf3 Ke6 36.Ke4 g6? (better 36...Rb4+/-) 37.d5+- (37.d5 Kd7 38.Kd4+-) 1-0. BeepBeepImAJeep (2575) - hugobrasil (1710), lichess.org, 2016.

13.Nb5 Nc6 14.Be2 Nd5 15.d4 Nc7 (15...Qb6 16.Qa4=) 16.Nc3 (16.Nc7 Qc7 17.Qb1 Nb4+=) 16...Ne8 (16...Nb4 17.Qb3+=) 17.Qb3 (17.Qb1 Qc7+=) 17...Qc8 (17...Qc7 18.Rb1 Nd6 19.Bd3+=) 18.Bb2 (18.Rb1 Nd6+=) 18...Nf6 (18...Na5 19.Qa2 Nc6 20.Ra1+=) 19.Rc1 Qb8 (19...Qc7 20.Nb5 Qa5 21.Bc3+=) 20.h3 (20.Ba3 Ba3 21.Qa3 Rc8+=) 20...Na5 (20...Rc8 21.Nb5+=) 21.Qa2 b6 (21...Nc6 22.Ba3+=) 22.Ne5 (22.Ba3 Ba3 23.Qa3 Bc6+=) 22...Be8 (22...Rc8 23.Ba6 Rc7 24.Ba3+=) 23.Bf3+- Bd6 (23...Nd7 24.Nd3+=) 24.Ne2 (24.Ba3 Ba3 25.Qa3 Nd7+-) 24...Be5 (24...Bb5 25.Ba3+=) 25.de5+- Nd7 26.Nd4 (26.Ba3 Ne5 27.Be4 Bc6 28.Bf8 Qf8 29.Bc6 Nec6+-) 26...Ne5 27.Be2 (27.Ba3 Nf3 28.Nf3 Bc6 29.Bf8 Qf8+-) 27...Nec6 (better 27...Bd7=) 28.Ne6?? (better 28.Ba3 Nd4 29.ed4+-) 28...fe6-+ 29.Qe6 Bf7 30.Qg4 Bg6 0–1. GuestFJRJ – jeanlucc, freechess.org, 2016.

9.cd5 ed5 10.Nf3 Be7 11.Bd3 c4-/+ 12.Bc2 Bb5 13.0-0 0-0 14.Re1 Bb4 (14...Re8 15.Nc3 Ba6 16.Qb1-/+) 15.Ng5 h6 (15...g6!?=+) 16.Bf6= Qf6 (16...gf6 17.Nh3 Re8 18.Qg4 Kf8 19.Nf4=) 17.Nh7+= Qb2 18.Nf8 Kf8 19.Bf5 (19.Ba4 Ba4 20.Qa4 Bd6+/-) 19...Nc6 20.Qc2 (20.Bc8 b6=) 20...Qe5 (20...Qc2 21.Bc2 Ba6 22.Nc3=) 21.f4 (21.Nc3 Ba6 22.Bd7 Nb8+=) 21...Qe7 (21...Qa1!?=) 22.Nc3+/- Nd4 23.Qb2 Bc6 24.g4?? (better 24.Nd5 Bd5 25.Qd4+/-) 24...Nf3-+ 25.Kf2 (25.Kf1 Ne1 26.Ke1 d4-+) 25...Ne1 (25...Bc3 26.Qa2 Ne1 27.Qa8 Be8 28.dc3-+) 26.Ke1 g6 (better 26...d4!? 27.Ne2 de3 28.Kd1 ed2 29.g5 hg5 30.Qe5 gf4 31.Qe7 Ke7 32.Nf4-+) 27.Bc8? (better 27.Nd5!? Qh4 28.Kd1 Bd5 29.Qb4 Kg7 30.Bd7 Qh2 31.Kc2-/+) 27...Bc3 (better 27...d4!? 28.Nd1 c3 29.Qb3-+) 28.Qc3 Kg8 29.g5 hg5 30.fg5 (30.Qe5 Qd8 31.Bg4 gf4 32.Qf4 b5-+) 30...Qg5 31.h3 Qg1 (31...Qg3 32.Kd1-+) 32.Ke2 Ba4 33.Bb7 (33.d4-+) 33...Qg2 (33...Bd1) 34.Ke1-+ Qg3 (34...g5 35.d4-+) 35.Ke2 (35.Kf1 Qh3 36.Kg1 Qg4 37.Kf2 Qh4 38.Kg2-+) 35...Qg2 (35...Qh3 36.Bd5 Qg4 37.Bf3-+) 36.Ke1 Qg1 37.Ke2 Bd1 0-1. AleksandrNekhoroshik (1760) - HEYggyo (1650), lichess.org, 2020.

9.Nf3 b6 10.Be2 Bd6 11.0-0 Qc7 (11...dc4 12.Bc4 0-0 13.d4+=) 12.d4 (12.Bf6 gf6 13.cd5 ed5+/-) 12...cd4 13.Nd4 (better 13.Qd4 dc4 14.Rd1+=) 13...dc4-/+ 14.Qc2 e5 (better 14...Bh2!? 15.Kh1 Bd6-/+) 15.Nf5= Be6? (better 15...Bf5 16.Qf5 0-0+=) 16.Ng7+- Ke7 17.Ne6 Ke6 18.Qc4 (18.Rd1!? Rd8+-) 18...Qc4+/- 19.Bc4 Ke7 20.Nd2 Nbd7 21.Be2 Rc8 22.Nc4 Ne4 (better 22...Rc5!?+/-) 23.Rd1+- (23.Nd6?! Nd6 24.f4 f6+/-) 23...Bb8? (23...Bc7 24.Rd7! Kd7 25.Bg4 Kd8 26.Bc8 Kc8 27.Ne5 Be5 28.Be5+-) 24.f3 (better 24.Rd7 Kd7 25.Nb6 Kc7 26.Nc8 Kc8 27.Bg4 Kd8 28.Bf5+-) 24...Nec5 25.Kf2 (25.e4 Ke8+-) 25...f6 (25...e4 26.Kg1+-) 26.Bb2 (26.e4 Kf7+-) 26...Na4 (26...e4 27.Ba3 ef3 28.Rd7 Ke6 29.Rd4 fe2 30.Nb6+- (30.Ke2?! Na4+/-)) 27.Ba3 Nac5?? (27...Ndc5 28.e4+-) 28.Rc1 (better 28.Rd7 Kd7 29.Nb6 Kd8 30.Nc8+-) 28...Ke6? (better 28...Bd6!?+-) 29.Nb6! Nd3 (29...Nb6 30.Rc5 Discovered attack (30.Bc5 Deflection; 30.Bc5 Remove defender; 30.Bc5 Overloading)) 30.Bd3 Rc1 31.Bc1 Nb6 32.Bh7 Nd5 (32...Kd5 33.Bd3+-) 33.e4 (better 33.Bg8 Kd7 34.Bd5+-) 33...Ba7 34.Kg3 Nc3 35.Bf5 (35.Bg8 Kd6 36.Ba3 Bc5 37.Bc5 Kc5+-) 35...Kd6 (35...Kf7 36.Kg4 Nb5+-) 36.Ba3 Kc7 37.Be7 Nb5 38.Bf6 Bd4 39.h4 Nd6 (39...Kd6 40.Kg4 Be3 41.Bg7+-) 40.h5 Nf5 (40...Ne8 41.Bg5 Bc5+-) 41.ef5 Kd7 42.h6 Ke8 43.h7 Kf7 44.h8Q (44.h8Q Bc5 45.Bg5 Bf2 46.Kf2 e4 47.Qh7 Kf8 48.fe4 Ke8 49.Qe7) 1-0. BeepBeepImAJeep (2535) - Gpilakos (2140), lichess.org, 2018.

9.Qb3 cb5 10.cb5 Be7 11.Nf3 Bc8 12.Be2 Nbd7 13.0-0 0-0 14.Bd4 Nc5 (14...Bd6 15.Qb2=) 15.Qb2 b6 16.Ne5 Bd7 17.Nc3 Nfe4 (17...Qc7 18.Ra1+=) 18.Ra1 (18.Ne4!? de4 19.Nd7 Qd7 20.Bg7+/-) 18...Nc3 19.Qc3 (19.Bc3 f6 20.Nc6 Bc6 21.bc6 Qc7+=) 19...f6= 20.Nd7 Qd7 21.Bc5 Bc5 (21...bc5 22.Qc2=) 22.d4+= Bd6 23.g3 (23.Qc6 Qc7+=) 23...e5 (23...Rc8 24.Ra7 Qd8 25.Qd2=) 24.Qb3 (better 24.Qc6 Qc6 25.bc6+/-) 24...Rc8? (better 24...Qf7+=) 25.Qd5+- Kf8 (25...Kh8 26.Ra8 Rd8 27.f4 ed4 28.ed4+-) 26.de5 fe5 27.Rd1 Rd8 1-0. AhmedSultanov (1640) - Arss_Art (1750), lichess.org, 2019.

9.Qb3 Be7 (9...Bd6 10.Nf3=+) 10.Nf3= 0-0 11.Be2 (11.Bd4 dc4 12.Bc4 cb5 13.Bb5 Nc6=) 11...Qb6 (11...dc4 12.Bc4 cb5 13.Bb5 Bb5 14.Qb5=) 12.Nc3 (better is 12.0-0=) 12...Na6?? (better is 12...cb5 13.Nb5 dc4 14.Bc4 Nc6=) 13.Na4+- Nc5 14.Bf6 Bf6 15.Nb6 Nb3 16.Nd7 Ra8 17.Nf6 gf6 18.0-0 e5 19.bc6 e4 20.cb7 Rb8 21.Nd4 Nd2 22.Rd1 Nc4 23.Nf5 Rb7 24.Bc4 (24...h5 25.Bd5+-) 1–0. De Visser,Arno – Ruiter, 1981.

9.Nc3 Bb4 10.Qb3 Bc3 (10...Qa5!? 11.Bb2 dc4 12.Bc4 cb5=+) 11.Bc3= Qc7 (11...0-0 12.Nf3=) 12.Nf3 0-0 (12...dc4 13.Qc4 Qd8 14.Qc5+=) 13.Be2 (13.Bf6!? gf6 14.b6+/-) 13...cb5 14.cb5 Ne4 15.Bb2 Rc8 16.0-0 Qc2 17.Qb4 Qc5 18.Qd4 (18.Qc5!? Rc5 19.Ra1+=) 18...Qd4= 19.Bd4 Rc2 (19...Nd6 20.b6=) 20.Bd3 (20.Ra1 h5 21.Bf1+-) 20...Rc8= 21.Ne5 (21.Ra1 f6=) 21...Nc5 (21...Nd2!? 22.Ra1 f6 23.Nd7 Nd7=+) 22.Be2 f6 23.Nd7 Nbd7 24.Rc1 e5 (24...b6 25.Bb2 Ra8 26.d4+=) 25.Bb2 (25.Bf3 e4 26.Bg4 Ra8+/-) 25...Kf7? (better 25...Ra8!?=) 26.d4+/- ed4 27.ed4 (27.Bd4?! b6+=) 27...Ne4?? (better 27...Re8 28.Bh5 g6 29.dc5 gh5+/-) 28.Rc8+- Kg6 (28...Ke6 29.Rc7 Nd6 30.Ba3+-) 29.Rc7 Nb6 (29...Nf8 30.Rb7 Ne6 31.b6+-) 30.Bd3 Nc4 (30...Na4 31.Ba3 f5 32.Rb7+-) 31.Rc4 dc4 32.Be4 Kf7 33.Bd5 Ke7 34.Bc4 (34.Bb7 Kd7+-) 34...Kd6 (34...Kd7 35.Ba3 b6 36.Bc5+-) 35.Ba3 Kc7 36.Bc5 (better 36.Be6 Kd8+-) 36...b6 37.Bb4 (better 37.Bf8 g6 38.Bg8+-) 37...Kb7 (37...Kd7+-) 38.d5 (38.Be6 Ka7 39.d5 Kb8 40.d6 Ka8 41.d7 f5 42.d8Q Kb7 43.Bd5 Ka7 44.Qc7) 38...Kc7 39.d6 Kd7 40.Bd5 f5 (40...Ke8 41.Bc6 Kf8 42.d7 Kf7 43.d8Q Kg6 44.Be8 Kf5 45.Qd5 Kf4 46.Bd6 Kg4 47.Qh5) 41.g4! fg4 42.Kg2 g6 (42...Ke8 43.Bc6 Kf8 44.d7 Kf7 45.d8Q Kg6 46.Be4 Kh5 47.Qd5 Kh4 48.Be7 g5 49.Qg5) 43.Kg3 (43.Bc6 Ke6 44.d7 Kf6 45.d8Q Kf5 46.Bc3 g3 47.Qf6 Kg4 48.Bf3) 43...h5 (43...Ke8 44.Bc6 Kf7 45.d7 Kf6 46.d8Q Kf5 47.Qe7 h6 48.Be4) 44.Kf4 (44.Bc6 Ke6 45.d7 Kf6 46.d8Q Kf5 47.Qf8 Ke6 48.Qe7 Kf5 49.Be4) 44...Kd8 45.Bc6 Kc8 (45...g3 46.Bc3 g5 47.Kg5 gf2 48.Bf6 Kc8 49.d7 Kb8 50.d8Q Ka7 51.Qc7) 46.Bc3 Kd8 (46...g3 47.d7 Kc7 48.Be5 Kd8 49.Bf6 Kc7 50.d8Q) 47.Bf6 Kc8 48.d7 (48.d7 Kb8 49.d8Q Ka7 50.Qc7) 1-0. BeepBeepImAJeep (2590) - miguelxyz19 (1925), lichess.org, 2017.

9.Nc3 Bb4 10.bc6 bc6 11.Nf3 0-0 12.Be2 Bc3 (12...dc4 13.0-0=) 13.Bc3+= Ne4 14.Bb2 Na6 (14...c5 15.0-0+=) 15.0-0 Nb4 16.Qb3 c5 17.d4 Qa5 18.Ra1 Qb6 19.dc5 Nc5 20.Qd1 (20.Qc3!? f6 21.Ba3+/-) 20...Rd8 21.Bd4 Qc7 (better 21...dc4!? 22.Bc4 Nc6+/-) 22.cd5 Nd5? (better 22...Ne4 23.Be5 Qb6+-) 23.Rc1 Qd6 24.Bc5 Qb8 25.Bd4 Be8 (25...Bb5 26.Be5 Be2 27.Qe2+- (27.Bb8?! Bd1 28.Rd1 Rb8=)) 26.Qf1 1-0. BeepBeepImAJeep (2525) - TopoNegro (2275), lichess.org, 2018.

9.Nc3 Bb4 10.Nf3 0-0 11.Be2 c5 (11...dc4!? 12.Bc4 Qa5=+) 12.0-0= Bc3 (12...Qa5 13.Qc2+=) 13.Bc3+= Ne4 14.Bb2 (14.Qb3 Bc8+=) 14...b6 (14...dc4 15.Bc4 Nd6 16.Qc2=) 15.d3+= Nd6 16.Qc2 Qe7 17.Be5 (17.e4 Bc8+/-) 17...f6+= 18.Bd6 Qd6 19.Ra1 e5 20.cd5 Qd5 (20...Bb5!? 21.Rb1 Ba6=) 21.d4+/- Be6 (21...cd4?? 22.Bc4 Be6 23.Bd5 Bd5 24.ed4+-) 22.de5 fe5 (22...Qb3 23.Qb3 Bb3 24.ef6 gf6 25.Nd2+-) 23.Rd1 (better 23.Ng5 Bf5 24.e4+-) 23...Qb7?? (23...Qb3 24.Qe4 Kh8 25.Qe5+/-) 24.Ne5 (better 24.Ng5 g6 25.Ne6+-) 24...Nd7 25.Bf3 Qc8 26.Nc6 Nf6?? (better 26...Qe8+-) 27.Ne7 Kh8 28.Nc8 (28.Nc8 Rc8 29.Rd6+-) 1-0. BeepBeepImAJeep (2570) - MatteurFOU (2430), lichess.org, 2017.

9.Nc3 cb5 10.cb5 Qb6 11.Nf3 Bb4 12.Qb3 Bc3 13.Bc3 0-0 14.Be2 Ne4 15.Bd4 Qd8 (15...Qa5!?+=) 16.0-0+/- f6 (16...Ng5 17.Ng5 Qg5 18.Rc1+/-) 17.d3 Ng5 18.Ng5 fg5 19.Qb2 Qe7 20.Be5 b6 21.Rc1 Rf5?? (better 21...Qf7 22.f3 g4+-) 22.Bb8 Qf6 (22...Rf8 23.Be5+-) 23.Qf6 gf6 (23...Rf6 24.d4 Kf7+-) 24.Bg3 (better 24.d4!? g4 25.Rc7 Be8 26.Bg4 Bb5 27.Bf5 ef5+-) 24...e5 (24...d4+-) 25.e4 de4 (25...Rf4 26.Rc6 Kf7 27.Bf4 gf4 28.Rb6 de4 29.de4+-) 26.de4 Rf4 27.Bf4 ef4 28.f3 (28.Rc6 Kf7 29.Rb6 Ke7+-) 28...g4 (28...Kf7 29.Rc7 Ke7 30.Rb7+-) 29.Rc7 Be6 30.Bc4 Bc4 31.Rc4 Kf7 (31...g3 32.hg3 fg3 33.Rc6+-) 32.Rc6 Kg6 (32...gf3 33.gf3 f5 34.ef5+-) 33.Kf2 1-0. BeepBeepImAJeep (2650) - chessweb (1955), lichess.org, 2017.

9.Nc3 cb5 10.cb5 Bd6 11.Nf3 0-0 12.Be2 e5 13.0-0 Re8 Black intends e4 14.d4 e4 15.Nd2 Qe7 16.Qb3 Be6 17.Bb2 h5 (17...Nbd7!?=+) 18.Ra1+= Ng4 19.Nf1 (19.Nd5 Qh4 (19...Bh2?! 20.Kf1 Qg5 21.Ne4-+) 20.Bg4 Qh2 21.Kf1 Qh1 (21...Bg4?! 22.Ke1-+; 21...hg4?! 22.Ne4 Qh1 23.Ke2 Qg2 24.Nd6 Bd5 25.Qc2-/+) 22.Ke2 Bg4 23.f3 Qg2 24.Kd1 ef3-+) 19...Nd7 20.Ba3 Qh4?? Pawn h2, live or die! (20...Ngf6 21.Bd6 Qd6 22.Nd2+=) 21.g3?? (better 21.Bg4 Bh2 22.Nh2 hg4 23.Bd6+- (23.Nd5?! Kh7+=)) 21...Qh3?? (better 21...Qe7!+=) 22.Bd6+- h4 (22...Ngf6 23.b6+-) 23.gh4 (23.Ra7 b6+-) 23...Nh6 (23...Qh4 24.Bg3 Qg5 25.Ra7+-) 24.Bg3 (24.Nd5?! Nb6 25.Ne7 Re7+-) 24...Nf5 25.Qd1 (25.Ra7!? Nh4 26.Bh4 Qh4 27.Rb7 Ra8+-) 25...Nh4 26.Bh4 Qh4 27.Ng3 Nf6 28.Qf1 (28.Ra7 Rb8+-) 28...Ng4 (28...Rc8 29.Ra3+-) 29.Bg4 Bg4 (29...Qg4 30.Ra7+-) 30.Nce2 (30.Nd5!? Rd8 31.Nc3 Bf3+-) 30...Bf3 (30...Rc8 31.Nf4 Qd8 32.Qg2+-) 31.Nf4 g5 (31...Rd8 32.Ra7 Qe7 33.b6+-) 32.Qh3 (better 32.Nd5 g4+-) 32...Qh3 33.Nh3 f6 34.Kf1 Rc8 (34...Bg4 35.Ng1+-) 35.Ng1 Bg4 36.h3 (36.Ra7 Rc1 37.Kg2 Bc8+-) 36...Be6 (36...Bd7 37.b6+-) 37.N3e2 Kf7 (37...Bd7 38.Ra5+-) 38.Rc1 (38.Ra7 Rb8+-) 38...Rb8 (38...Rc1 39.Nc1 Ke7 40.Nce2+-) 39.Rc7 Kg6 40.b6 Ra8 (40...f5 41.f4 g4 42.Ng3+-) 41.Rb7 Ra1 42.Kg2 Ra2 (42...Rb1 43.Nc3 Rb4 44.Nge2+-) 43.Re7 Bf5 (43...Bf7 44.b7 Rb2 45.h4 gh4 46.Nf4 Kg7 47.Ne6 Kg8 48.Nd8+-) 44.b7 Rb2 45.Nc3 Rb3 46.Nd5 Be6 (46...Kh5 47.Nf6 Kg6 48.Ne8+-) 47.Re6 Rb7 48.Rf6 Kg7 49.Rd6 Rb5 50.Nc3 Rb3 51.Ne4 Rb2 52.Ng5 Kg8 53.N5f3 Kf8 54.Rd5 Rb1 55.Rf5 Ke7 56.Rf4 Kd7 57.Rg4 Ke7 58.h4 Kf7 59.Rg3 Kf6 60.h5 Kf5 61.h6 Rf1 62.Rh3 (62.Kf1 Kf6 63.h7 Kf5 64.h8Q Ke4 65.Rg5 Kd3 66.Rc5 Ke4 67.Qh7) 62...Rf2 63.Kf2 Kg6 64.h7 (64.h7 Kf5 65.h8Q Ke6 66.Qe5 Kf7 67.Rh7 Kg6 68.Rg7 Kh6 69.Qg5) 1-0. BeepBeepImAJeep (2770) - Psy_ko (2550), lichess.org, 2020.

9.Nc3 Be7 10.Nf3 0-0 11.Be2 dc4 12.Bc4 cb5 13.Bb5 Nc6 (13...Bb5 14.Nb5 Qd3 15.Nbd4=+) 14.0-0= Qc7 15.d4 Ra8 16.Bd3 Qb8 17.Bb2 Nb4 18.Bb1 b5 19.Ne5 Be8 20.Qb3 Nbd5 (20...Nc6 21.f4= (21.Nb5? Na5 22.Qc2 Bb5-+)) 21.Ne2 (21.Nd5 Nd5 22.Be4 Qd6+=) 21...b4= 22.Rc1 Ba4 23.Qd3 b3 24.Nc6?? (better 24.e4 Nb4 25.Qf3=) 24...Bc6-+ 25.Rc6 g6?? (better 25...Nb4 26.Qc4 Nc6 27.Qc6 Bd6-+) 26.Rc1= Ba3 27.Qd2 Bb2 28.Qb2 Ra7 29.h3 Rb7 30.Bd3 Rb4 31.Rc4 Kg7 (31...Rc4 32.Bc4 Qb4 33.Qb3 (worse 33.Bb3 Qe1 34.Kh2 Qf2 35.Bd5 ed5-/+) 33...Qe1 34.Kh2 Qf2 35.Bd5 Nd5 36.e4=+) 32.e4 (better 32.Rb4 Qb4 33.Nc1+/-) 32...Rc4=+ 33.Bc4 Ne4 34.Qb3 (worse 34.Bb3 Qb4 35.Kh2 Nf2-/+) 34...Qb3 35.Bb3 Ndc3 36.Nc3 Nc3 37.Kf1 Nb5 38.d5 ed5 39.Bd5 Nd4 40.Bc4 f5 41.Bd3 (41.f4 h6=) 41...Kf6 42.f4 Ne6 43.g3 g5 44.fg5 Ng5 45.Kg2 h5 46.h4 Ne4 47.Kf3 Nd2 (47...Ke5 48.Bb5=) 48.Kf4 The isolani on f5 becomes a target 48...Nf1?? (better 48...Nb3+=) 49.Be2 (49.Be2 Nd2 50.Bd1=). BeepBeepImAJeep (2685) - checkmate365 (2120), lichess.org, 2017.

9.Nc3 Be7 10.Nf3 Qa5 11.Nd4 (11.Ne5 0-0=) 11...e5 (11...0-0 12.cd5 ed5 13.Bd3=) 12.Nb3= Qc7 (12...Qb4 13.Na2 Qa4 14.bc6 Bc6 15.Nc3=) 13.cd5 (13.c5 b6 14.d4 ed4 15.cb6 Qb6 16.Qd4 Qd4 17.Nd4 Bb4=) 13...cd5=+ 14.Be2 Bd6 (14...0-0 15.0-0=+) 15.h3 (15.0-0 0-0=+) 15...0-0 16.0-0 Re8 (16...Rc8 17.d4 e4 18.Qd2=) 17.d3 (17.d4 e4=) 17...Qd8 (17...Rc8 18.d4 e4 19.f3=+) 18.Bf3 (18.d4 e4=) 18...Be6=+ 19.Qb1 (19.d4 e4 20.Be2 Bc7=+) 19...Nbd7 20.Na4 (20.Qc2 Qb6=+) 20...g5 (20...Qe7 21.Rc1=+) 21.Rc1 h5 Black prepares the advance g4 (21...g4 22.hg4 Bg4 23.Nd2=) 22.Nbc5 g4 (22...Nc5 23.Nc5 Bc5 24.Rc5=) 23.Ne6 (better 23.Nb7!? Qb8 24.Nd6 Qd6 25.hg4 hg4 26.Rc6+-) 23...Re6= 24.hg4 hg4 25.Be2 Kg7 (25...d4=) 26.f3 (26.Qc2 Kf8=) 26...gf3 (26...Qa5 27.Qc2=+) 27.Bf3= Qh8 28.Kf2?? (28.Nc3 Qh6 29.Re1= (29.Nd5?? Nd5 30.Kf1 Ne3 31.Ke2 Nf5-+; 29.Bd5?? Qe3 30.Kh1 Nd5 31.g3 Qg3 32.Qc2 Rh6 33.Qh2 Rh2)) 28...Qh4-+ Black plans e4 29.Ke2 e4 (29...Qa4 30.Rc2-+) 30.de4 de4 31.Bf6 Nf6 32.Be4 (32.Nc3 ef3 33.gf3 Bc5-+) 32...Re4 (32...Ne4 33.Kd3 Be5-+) 33.Rh1 (33.Nc3 Qg4 34.Kd3-+) 33...Qg4 (33...Ra4?! 34.Rh4 Rh4 35.Qd3-/+) 34.Kf2 Ra4 (34...Ra4 35.Kg1 Be5-+) 0–1. GuestNSBZ – GuestZQTF, freechess.org, 2017.

9.cd5 Nd5 10.bc6 Nc6=.

9.Nf3 dc4 10.Bc4 cb5 11.Be2 Be7 (11...Bc6 12.0-0=+) 12.Qb3 Attacking the isolated pawn on b5 (12.0-0 Bd6=) 12...Qb6 (12...0-0 13.0-0=+) 13.Nc3 The pressure on the isolated pawn grows (13.0-0 0-0=) 13...Qa6 (13...Qa5!? 14.0-0 b4=+) 14.0-0 0-0 15.Bb5 Bb5 16.Nb5 Nbd7 17.Bc3 Ra8 (17...Rc8 18.Qb2=) 18.Nc7+= Qa3 19.Qb5 (19.Qb7 Rb8 20.Qc6 Qd6+=) 19...Ra4 (better 19...Rb8!?=) 20.Qb7+- Nc5 (20...Bf8 21.Bf6 Ra7 22.Qc6 Nf6 23.Nb5+-) 21.Qb8 (21.Qc8 Bf8 22.Bf6 gf6+-) 21...Bf8+- 22.h3 (22.Bf6 Nd7 23.Qc8 Nf6+-) 22...Ncd7 23.Qb5 Ra7 24.Ra1?? (better 24.Qc6 Qc5 25.Qc5 Bc5 26.Bf6 Rc7 27.Bc3+-) 24...Qa1-/+ 25.Ba1 Ra1 26.Kh2 Bd6 27.g3 Bc7 28.Qb7 Bd6 29.Qc8 Bf8 30.d4 h6 31.e4 Nb6 32.Qc7 Rb1?? (better 32...Nfd7-/+) 33.Ne5+- Ne4?? (33...Kh7 34.Qf7 Bb4+-) 34.Qf7 (34.Qf7 Kh7 35.Qg6 Kg8 36.Qe6 Kh7 37.Qf5 Kg8 38.Qe4+-) 1–0. GuestNTNN – colax, freechess.org, 2017.

9.Nc3 0-0 10.Nf3 c6 11.Be2 Qa5 12.Ne5 Be8 (12...dc4 13.Nc4 Qd8 14.b6=) 13.0-0 dc4 14.Nc4 (worse 14.Bc4 cb5 15.Bb3 Bc6=+) 14...Qc7 15.bc6 (15.b6 Qd8+=) 15...Bc6= 16.d4 Rd8 17.Qb3 Nbd7 18.Nb5 Qb8 19.Bc3 (19.Bb2 Nd5=) 19...Nd5 (19...Ne4 20.Bb4 Bb4 21.Qb4 Bb5 22.Qb5=) 20.Bd2+= N5b6 (20...N7f6 21.Rc1+=) 21.Nb6 Nb6 22.Ba5 Bd5? (better 22...Bb5!? 23.Bb5 Qa7+=) 23.Qb1+- Nc4 24.Bc4 Bc4 25.Bd8 Bf1? (better 25...Qd8 26.Rc1 Qd5+-) 26.Be7 (26.Qf1?! Qd8 27.Qc4 Qa5=) 26...Qe8 (26...Bb5 27.Qb5 h6 28.f3+-) 27.Qf1 Qe7 28.Qc4 h6 (28...Qd8 29.e4+-) 29.g3 (29.Qc8 Kh7 30.Qc5 Qd7+-) 29...Qd7 (29...Qd8 30.e4+-) 30.Qc5 Qd8 (30...g5 31.Nd6+-) 31.Nd6 b6 32.Qc8 (better 32.Qc6 g6+-) 32...Qc8 33.Nc8 b5 34.Kf1 Kf8 35.Ke2 b4 (35...g6 36.Kd3+-) 36.Kd3 Ke8 37.Kc4 Kd7 38.Nb6 Kc6 39.Na4 f5 (39...b3 40.Kb3 h5 41.f4+-) 40.Kb4 (40.Nc5 Kd6+-) 40...Kd5 41.Nc3 Kd6 1–0. Aspinall,John (1820) – Trier,Marc (1670), FRA–chT4, 2009.

9.Nf3 0-0 10.Be2 c6 11.Nc3 Qa5 12.cd5 cd5 13.0-0 Rc8 14.Qb3 Be8 15.Bb2 Nbd7 16.d4 Qd8 (16...Nb6 17.Ne5=) 17.h3 (17.Ba3 Ba3 18.Qa3 Nb6+=) 17...Nb6= 18.Ne5 Nfd7 19.f4 (19.Nd7 Bd7 20.Ba3 Bg5=) 19...f6 (19...Ne5 20.fe5 Nc4 21.Bc4 Rc4 22.Ra1=+) 20.Nf3 Nc4 21.f5 Bf7 22.e4 de4 (better 22...ef5!? 23.ef5 Ndb6=+) 23.Bc4+= ef3?? (better 23...Rc4 24.Qc4 Nb6+=) 24.fe6+- Be6 (24...Nb6 25.ef7 Kf8 26.Be6 Qd4 27.Kh1+-) 25.Be6 Kh8 26.Rf3 Qb6 (26...Ra8+-) 27.Bd7 (better 27.Re3 Qd8 28.Bd7 Qd7 29.Qf7 Qd4 30.Qe7+-) 27...Qd4 28.Kh1 Qd7 29.Qd5 Qc7 (29...Qd5 30.Nd5 Bf8 31.Rc3+-) 30.Qd1 (30.Qe6 Bd6 31.Rd3 Be5+-) 30...Rd8 31.Nd5 (31.Rd3 Rd3 32.Qd3 Qe5+-) 31...Qd6? (better 31...Qc5 32.Rd3 Qb5+-) 32.Rd3 Qe6 33.Ne7 Rd3 34.Qd3 Qe1 35.Kh2 Qe7 36.Bd4 Qd6 37.Qg3 Qf8 38.b6 h6 39.Be3 Qb4 (39...Qe7 40.Qf3+-) 40.Qc7 (better 40.Qb8 Kh7 41.Qb7 Qd6 42.Kh1+-) 40...Qe4 41.Bf4 Kh7 42.Bg3 h5 43.Qf4 Qc6 44.Qf5 g6 45.Qb1 Kh6 46.Qf1 (46.Qb4 g5+-) 46...g5? (46...Qb6!? 47.h4 Qc6+/-) 47.Qf5 (47.Bc7 h4+-) 47...h4 (better 47...Qb6 48.h4 Qd4+-) 48.Bf2 Qd6 49.Kg1?? (49.Kh1 Qe7+-) 49...Kg7?? (49...Qd1 50.Kh2 Qd6 51.Kh1 Kg7+-) 50.Qf3 Qc6?? (50...Qd7 51.Qe4+-) 51.Qd1 (better 51.Qc6 bc6 52.b7+-) 51...Qd6?? (51...Kg6 52.Qd3 f5 53.Bd4+-) 52.Qf1 (52.Qd6 f5 53.Bd4 Kf7 54.Qd7 Kf8 55.Qg7 Ke8 56.Bf6 g4 57.Qe7) 52...Qe6 53.Bh4?? (better 53.Bd4+-) 53...Qf7?? (better 53...gh4 54.Qb1 f5=) 54.Bg5! Qg6?? (54...fg5 55.Qf7 Double attack) 55.Qf2 (55.Qf6 Qf6 56.Bf6 Kf7+-) 55...f5?? (better 55...Qg5 56.Qd4 Qc1 57.Kh2 Qc6+-) 56.Qg3 (better 56.Qd4 Kh7 57.Qd7 Qg7 58.Qf5 Qg6 59.g4+-) 56...Qg5 (56...Qb6 57.Be3 Qg6 58.Bd4 Kf7 59.Qc7 Ke8 60.Qc8 Ke7 61.Qb7 Ke8+-) 57.Qg5 Kf7 58.Qf4 Ke7 59.Qe3 Kd6 60.Qf3 (60.Qf3 Ke5 61.Qb7 f4 62.Qe7 Kd5 63.b7 Kc6 64.b8Q Kd5 65.Qb5 Kd4 66.Qee5) 1-0. BeepBeepImAJeep (2510) - sasan_al18 (2400), lichess.org, 2015.

9.Nf3 0-0 10.Ne5 Be8 11.Nc3 d4 12.Ne2 de3 13.fe3 Ne4 14.Nf3 Bc5 (14...Nd7 15.Qc2 f5 16.Nf4=) 15.g3 (15.Qc2 f5+=) 15...Be3 (better 15...f6!?=) 16.de3+= Qd1 17.Kd1 Nf2 18.Ke1 Nh1 19.Bg2 Ng3 20.Ng3 Nd7 (20...f6 21.Nd4 Bf7 22.c5=) 21.Bd4 (21.Ne5 Nb6 22.Bd4 f6 23.Bb6 cb6+=) 21...b6 (21...f6 22.Nd2 b6 23.Ne2=) 22.Ne5 Ne5 (better 22...f6!? 23.Nc6 e5=) 23.Be5+- Bd7 24.Bc7 (better 24.Kd2!?+-) 24...Rc8= 25.Bb6 Rc4 26.Bf1 Rb4 27.Bc5 Rb1 28.Kf2 Bb5 29.Bb5 Rb5 30.Bd4 f6 31.Ne4 Rb4 (31...e5 32.Ba7-/+) 32.Kf3 f5 (better 32...e5!? 33.Bc5 Rc4-/+) 33.Ng5= g6 (33...e5 34.Be5 h6 35.Nh3=) 34.Ne6+= Ra4 35.Kf4 h6 36.Ke5 Kf7 37.Nd8 Ke7 38.Nc6 Kf7 39.Nd8 Ke8 (39...Ke7 40.Ne6=) 40.Ne6 Kf7 41.Nd8 ½–½. GuestGDVQ – TeactorPit, freechess.org, 2017.

9.c4 0-0 10.Qb3 Qe7 (10...Ba5 11.Bd4=) 11.Be2 (11.Bf6!? gf6 12.cd5+/–) 11...c6 (11...dc4 12.Qc4 Bd6 13.Be5=) 12.Ne5 (12.Bf6!? gf6 13.cd5 cd5 14.0-0+=) 12...dc4=+ 13.Bc4 cb5 14.Nd7 Nbd7 15.Bb5 Nc5 (15...Ra8 16.Bf6 Nf6 17.0-0=) 16.Qc4 Ra8 (better is 16...Ncd7!?=) 17.Bf6+/– gf6 18.Qg4 (18.0-0 Na6+=) 18...Kh8+= 19.0-0 Nb3 20.Qh4 (20.d4 f5 21.Qe2 Qd6+=) 20...f5 (20...Ra5 21.Bc4 Nd2 22.Nd2 Bd2 23.Bd3+=) 21.Qc4 Na5 22.Qc2 Qf6 23.d4 Bd6 24.f4 Nc6 25.Bc6 bc6 26.Qc6+/– Rd8 27.Nd2 Qg7 28.Rf3 Qg4 29.Qc3 (29...Be7 30.Qc7+/–; 29.Nc4 Rg8 30.Rf1 Bc7+-) 1–0. Kilpatrick,Robert – Pollard,Alan J, corr SCCA, 1978.

9.Be2 0-0=.

9.Be2 c6 10.Ne5 0-0 11.0-0 Qa5 12.Nc3 (12.bc6 Qa1 13.Nd7 Nbd7 14.cd7 Nd7=) 12...cb5 13.Nd7 Nbd7 14.Qb1 Ra8 (14...Nc5 15.f3=+) 15.Rd1 (15.Bb5 Nc5=) 15...Nb6 (15...Nc5 16.Nb5 Bd2 17.Bf6 gf6 18.c4 dc4 19.Bc4=+) 16.Nb5= Bd2 17.Bf6 gf6 18.Qb2 Nc4 19.Bc4 dc4 20.g3 (20.Nd6!? Qd5 21.Nb7=+) 20...c3-/+ 21.Qb3 Qa4 22.Rb1 Qb3 (22...Qa2 23.Nd4=+) 23.Rb3= (23.cb3?? c2 24.Rf1 Rd8-+) 23...Ra2 24.Nc3 Rc2 25.Ne4 Rc7?? (better 25...f5 26.Nd2 Rd2 27.Rb7 Kg7=) 26.Nd2+- 1–0. DEFFM – GuestKHPY, freechess.org, 2018.

9.c4 dc4 10.Bc4 Qa5 11.Be5+/- Qd8 12.0-0 Be7 13.Qc2 0-0 14.d3 Qb6 15.Nc3 Rd8 (15...Ng4!?+=) 16.Na4+/- Qa5 17.Ra1 Bb5 18.Nc5! Qb6 (18...Bc5 19.Ra5 Discovered attack) 19.Ne6! Bc4 (19...fe6 20.Nd4 Double attack (20.Nd4 Decoy)) 20.Nd8 Bb3 21.Qb2 Ng4 (21...Qd8 22.Qb3 Nc6 23.Qb7+-) 22.Nf7 Ne3 (22...Nc6 23.Bd6 Kf7 24.Be7 Qb5+-) 23.Bb8 Bc5 (23...Kf7 24.Ne5 Ke8+-) 24.Ba7 Qg6 (24...Nd1 25.Rd1 Bf2 26.Kf1+-) 25.N7g5 Bd5 26.Bc5 Ng2 27.Ra8 (27.Ra8 Qe8 28.Re8) 1-0. DEFFM – GuestFQWY, freechess.org, 2021.

9.c4 Be7 10.Be2 Kf8 (10...0-0!?+=) 11.0-0+- g6 (11...Be8 12.cd5 ed5 13.Qc2+-) 12.Qc2 (12.Nc3 Kg8+-) 12...Kg7 13.Nc3 (13.h4 Rf8+-) 13...Rf8 (13...Bc8!?+-) 14.cd5+- ed5 15.Nd5 Be6? (better 15...Bb5 16.Bb5 Qd5+-) 16.Nf4 Bf5 (16...Bc8 17.Ng5 Bf5 18.e4+-) 17.e4 Bg4 (17...Bc8 18.d4 cd4 19.Rd1+-) 18.h3 Bf3 19.Bf3 (19.gf3?! Re8 20.e5 Nd5 21.Nd5 Qd5+-) 19...Kg8 20.e5 Nd5 (20...Ne8 21.Bb7 Nc7+-) 21.Bd5 b6 (21...Kg7+-) 22.e6 Bf6 23.ef7 Kh8 24.Ng6 hg6 (24...Kg7 25.Nf8 Ba1 26.Qh7 Kf6 27.Qg6 Ke7 28.Re1 Be5 29.Re5 Kf8 30.Qh6) 25.Qg6 Bg7 (25...Rf7 26.Bf7 Qf8 27.Bf6 Qg7 28.Qg7) 26.Bg7 1–0. Janek – Bonubo, internet free game, 2017.

9.c4 cb5 10.cb5 Qa5 11.Be5+- Qa8 12.Bd3 (12.Qc2 Be7 13.Bd3 0-0+-) 12...Be7 (12...Bc8 13.0-0+=) 13.Qc2 (13.0-0 Bc8+-) 13...0-0 14.0-0 Rc8 15.Nc3 Be8 16.Qb2 Nbd7 (16...b6 17.Ra1 Qb7 18.Qa2+-) 17.Ra1+- Ne5 18.Ra8 (18.Ne5?! Qb8 19.f4 Nd7 20.Nd7 Bd7=+) 18...Nf3 19.gf3 Ra8 20.f4 Nd7 (20...g6 21.Kg2+-) 21.b6 Bc5 (21...Nf6 22.Bb5+-) 22.Bb5 (better 22.Nb5 Nf6 23.Nc7+-) 22...Nb6?? (better 22...g6+-) 23.Be8+- Re8 24.d4 (24.d4 Bd4 25.ed4+-) 1–0. GuestFVNG – alayne, freechess.org, 2020.

9.c4 dc4 10.Bc4 cb5 11.Be2 Bc5 12.Qb3 Attacks the isolani on b5 12...Qa5 (12...0-0 13.Bb5 Nd5 14.Bd7 Qd7 15.0-0=) 13.Bc3 (13.Bf6 gf6 14.0-0 Bc6+=) 13...Qb6 (13...Qa4 14.Qb2=) 14.Nd4 The pressure on the isolated pawn grows (14.Bf6 gf6 15.0-0 e5+=) 14...0-0 (14...b4 15.Bb2=+) 15.Nb5= Bb5 16.Qb5 Qb5 17.Bb5 Ne4 18.0-0 (18.Ke2 Rc8=) 18...b6 (18...Rc8 19.Rc1=) 19.Bd3 (19.Rc1 Nc3 20.Nc3 Ba3+=) 19...Nf6 (19...Nc3 20.dc3 Rd8 21.Rd1=) 20.Bb5 Rd8 (20...Ne4 21.Rc1+=) 21.d4 (21.Bf6 gf6 22.d4 Bd6+=) 21...Bd6 22.Nd2 Nd5 23.Bb2 Nd7 24.Rc1 Nb4? (24...Bb4!? 25.Ne4 h6+=) 25.Ba3 (25.Bd7!? Nd3 26.Rc6 Be7+-) 25...Nf6 26.Rc4 (26.Nc4!? Na2 27.Ra1 Ba3 28.Ra2+/- (28.Na3?! Nc3=)) 26...Nfd5+= 27.e4 Nf4?? (better 27...Nc7 28.Rc7 Bc7 29.Bb4 Rd4+=) 28.Bb4+- (28.Rb4?! Bb4 29.Bb4 Rd4+/-) 28...Ne2 (28...Bf8 29.Kf1+-) 29.Kf1 Bb4 30.Rb4 (better 30.Ke2!? Be7+-) 30...Nd4 (30...Rd4 31.Rb2 (31.Be2?! Rb4 32.f4 b5+=; 31.Ke2?! Rb4 32.Bc6 Rb2+/-) 31...Nc3 32.Rc2+-) 31.Be2 Nc2 (31...Kf8 32.Rb6 Ra8 33.e5+-) 32.Rb6 h6 33.Nf3 Ra8 (33...Nd4+-) 34.Rb7 (better 34.Bd3 Ra2 35.Rb8 Kh7 36.e5 g6 37.Rb7+-) 34...Ra1+= 35.Bd1 Rd1 36.Ke2 Rd8 37.Re7 (37.h3 f5+=) 37...Nb4= 38.Ne5 Rf8 (38...f6 39.Ng6 Nc6 40.Rc7 Nd4 41.Ke3=) 39.Rb7 (39.h4 f5 40.Re6 fe4+/-) 39...Na6+= 40.Rb6 Nc5 41.Nd3 (better 41.Ke3+=) 41...Ne4=+ 42.Ke3 Nf6 43.h3?? (better 43.Ke2-/+) 43...Nd5-+ 44.Ke4 Nb6 0-1. AhmedSultanov – Pooridol, lichess.org, 2019.

9.c4 dc4 10.bc6 Bc6 11.Bc4 b5 12.Be2 (12.Bf6 gf6 13.Be2 e5=) 12...Be7 (12...b4 13.0-0=) 13.0-0 (13.Ne5 Qa5 14.Nc6 Nc6+=) 13...0-0 14.Nd4 Exerts pressure on the isolated pawn 14...Bd7 (14...b4!?=) 15.Nb5+= Qa5 (15...Bc6 16.Nd4+=) 16.N1c3 Bb4 (16...Na6 17.Bb2+-) 17.Nd4 (17.Qb3 Nc6+-) 17...Nc6 (17...e5 18.Nb3 Qb6 19.Na2+-) 18.Nf3 (18.Nb3 Qg5+-) 18...Nd5 (18...Rc8 19.Qb3+-) 19.Nd5 (19.Qc2 Rb8+-) 19...ed5 (19...Qd5 20.Bc3+-) 20.Bb2 (20.Qc2 Rc8 21.Qd3 Ne7+-) 20...f5 (20...Rc8 21.Qa1 Qa1 22.Ra1+-) 21.Qb3 Be6? (better 21...Rb8 22.Ra1 Qc5+-) 22.Ra1+- Qc5 (22...Qc7 23.Ra6 Rb8 24.Ng5+-) 23.Rc1 Qd6 (23...Qb6 24.Rc6! Qc6 25.Qb4+-) 24.Rc6! Qc6 25.Qb4 Qc8 (25...Re8 26.Nd4 Qc7 27.Ne6 Re6 28.Bf3+-) 26.Ng5 Bd7 (26...Re8 27.Bh5 Rf8+-) 27.Qd4 (better 27.Qe7 Rf6 28.Bf6+-) 27...Rf6 28.Qd5 (28.Qd5 Be6 29.Ne6 Qe6 30.Qb5+-) 1–0. DEFFM – GuestXKFK, freechess.org, 2016.

9.bc6 Nc6 10.Bb5 Be7 (10...Bd6 11.0-0=) 11.0-0 0-0 12.d3 Ne8 (12...Qa5 13.Nc3=) 13.Bc6 (13.c4 Nd6=) 13...bc6 14.Ne5 Bf6 (14...f6 15.Nd7 Qd7 16.Qg4=) 15.Nd2 Be5 (15...Qc7 16.Nd7 Qd7 17.Qf3=) 16.Be5 f6 17.Bg3 (White gets the initiative) 17...e5 (17...Qe7 18.c4=) 18.f4 Qe7 19.fe5 fe5 20.Rf8 Kf8 21.c4 Nf6 22.Qb3 Qc5 (22...e4 23.d4=) 23.Qb8 Kf7 24.Qe5 Be6 (better is 24...Qa3=) 25.Nf3+/– h6 (25...Bg4 26.Qc7 Kg8 27.Qb8 Qf8 28.Qf8 Kf8 29.cd5 cd5 30.Kf2+/–) 26.h3 (26.Qc7 Kg6 27.Qf4 Qa3 28.cd5 Qc1 29.Ne1 cd5+/–) 26...dc4?? (better is 26...Qa3 27.Qb8 Nd7+-) 27.Qc5+- (27...cd3 28.Ne5 Kg8 29.Qc6+-) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.Ne5 Bb4 10.f4 cb5 11.Bd3 0-0 12.0-0 Bc6 13.Bd4 Nbd7 14.Nc3 Exerts pressure on the isolated pawn 14...Ne5 15.fe5 Nd7 (15...Ne4 16.Be4 de4 17.Rf4=) 16.Qg4 Nc5 17.Bc5 Bc5 18.Bb5 d4 19.Bc6 bc6 (19...dc3 20.d4 bc6 21.dc5=+) 20.Ne4= Qd5?? (better 20...Ba7=) 21.Nf6+- (21.Nf6 Kh8 22.Qh4+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Ne5 cb5 10.Bd3 b4 11.0-0=+.

9.Ne5 cb5 10.Bd3 Bd6 11.Nd7= Nbd7 12.Bb5 0-0 13.0-0 Nb6 (13...Qc7 14.f4=) 14.f4 h5 (14...Bc5 15.Nc3=) 15.Bf6 (15.Bd4 Be7+=) 15...Qf6= 16.Qh5 Bb4 (16...Rc8!?=) 17.f5+- ef5 (17...Ra8 18.Qg4 Bc5 19.fe6 Qe6 20.Qe6 fe6 21.Kf2+-) 18.Rf5 Qb2 (18...Qe6 19.Rf3 g6 20.Qh6+-) 19.Be8! Qb1?? (19...Re8 20.Qf7 Mate attack) 20.Kf2+- Bd2 (20...Re8?? 21.Qf7 Kh7 22.Rh5) 21.Bf7 Rf7 22.Qf7 (22.Rf7?? Qe1 (22...Qc2?! 23.Rb7 Bb4 24.Qe2=) 23.Kf3 Qd1 24.Kf2 Qh5-+) 22...Kh7 23.Rh5 1–0. GuestXFHR – GuestRLFB, freechess.org, 2020.

9.Ne5 cb5 10.Nd7 Kd7 11.Bb5 Nc6 12.c4+=.

9.Ne5 cb5 10.Nd7 Qd7 11.Nc3 b4 12.Bb5 Nc6 13.Na2 Be7 14.Bf6 gf6 (14...Bf6 15.Nb4 0-0 16.c3=+) 15.0-0 Bd6 16.Qh5 Ke7 17.Nc1 Qc7 18.Nb3 Ne5 19.Rc1 Ng6 20.g3 Qb6 21.Bd3 e5 (21...Ne5 22.Be2= (22.Bh7? Nd7-+)) 22.Bf5 Qc7 23.Qh6 b6?? (better 23...Ra8+=) 24.Bg6+- fg6 (24...Qc8 25.Bh7 Qg8 26.Bg8 Rh6 27.Ra1+-) 25.Qg7 (25.Qg7 Ke6 26.Qh8+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Ne5 cb5 10.Nd7 Qd7 11.Be5 Bd6 12.Bb5 Qb5 13.Bd6 Nc6=.

9.Ne5 Bc8 10.Be2 Bd6 11.f4 Nfd7 12.0-0 Qc7 (better 12...0-0!?=) 13.Nd7+/- Nd7 14.Bg7 Rg8 15.Bb2 e5 16.Bh5 ef4 17.ef4 Bf4 (better 17...Qb6 18.Kh1 Qb5 19.Re1 Kd8+/-) 18.Qe1 Kd8 19.Bf7 Bh2 (19...Qb6 20.Kh1 Rg4 21.Qe8 Kc7 22.Rf4 Rf4 23.Be5 Ne5 24.Qe5 Kd7 25.Qf4 Qb5 26.Nc3+-) 20.Kh1 Bg3 21.Qe3 Qd6 22.Bg8 d4 (22...Qg6 23.Bf7 Qg4 24.Qh6 Qh4 25.Qh4 Bh4 26.Bg8+-) 23.Bd4 c5 (23...Qg6 24.Be6 Qh5 25.Bh3+-) 24.Bg7 Qg6 25.Qh6 Qc2 (25...Be5 26.Qh4 Kc7 27.Be5 Ne5+-) 26.Qg5 (26.Qg5 Kc7 27.Qg3 Kb6 28.Nc3 Qd2 29.Qh4+-) 1-0. onur604 (2320) - trytogethigh (2240), Casual Rapid game, lichess.org, 2021.

9.c4 0-0 10.Nc3 dc4 11.Bc4 c6 12.0-0 cb5 13.Bb5 Bb5 14.Nb5 Bc7 15.Nc7 (15.Bf6 gf6 16.Qa4 Nc6+/-) 15...Qc7 16.Bf6 gf6 17.d4 e5 (17...Nd7 18.Ne1+=) 18.de5 (18.d5 Qc4+/-) 18...fe5 19.Qd5 (19.Nh4 Nc6+/-) 19...Re8 20.Rb1 b6 21.h4 (21.Rd1 Nc6+/-) 21...Nd7+= 22.h5 (22.Qe4 h6+=) 22...Nf6 23.Qb5 Re6 24.h6 Nd7 (24...Ng4!? 25.Qa4 Nh6=) 25.Rd1+= Nb8? (better 25...Rd6 26.Qa4 Kf8+=) 26.Ng5 (better 26.Nh4!? Nc6 (26...Rh6 27.Qe8 Kg7 28.Nf5 Kg6 29.e4+-) 27.Qa4 Kf8+- (27...Rh6 28.Nf5 Re6 29.Qa8 Nb8 30.Qb7+-)) 26...Rh6+/- 27.Qe8 Kg7 28.Rd8?? (28.Nf7 Qc2 29.Ra1+-) 28...Kg6 (28...Qc1 29.Rd1 Qd1) 29.Qg8+- Kh5 (29...Kf6 30.Ne4 Ke6 31.Rd6 Qd6 32.Nd6 Kd6 33.Qf8 Kc7 34.Qh6+-) 30.g4! (30.Rb8 Rg6 31.Qf7 Qb8+-) 30...Kg4 (30...Kh4 31.Nf7 Kh3+-) 31.Ne6 (31.Rb8?? Qc1 32.Kg2 Qh1) 31...Kf5 (31...Rg6 32.Nc7 Nc6 33.Qf7 Nd8 34.Qh7+-) 32.Nc7 Ke4 (32...Rg6 33.Qg6! fg6 34.Rb8 g5+-) 33.Kf1 (33.Kf1 Rh1 34.Ke2 Kf5 35.e4 Kf4 36.Nd5 Ke4 37.Qg4; 33.Qg4) 1-0. Lance5500 (2475) - DaviatorGM (2195), lichess.org, 2018.

9.c4 dc4 10.Bc4 0-0 11.0-0 c6 12.Nc3 cb5 13.Nb5 Bb5 14.Bb5 Nc6 15.Bc6 bc6 16.d4 (16.Qc2 Qc7+=) 16...Ne4 (16...Qa5 17.Qc2=) 17.Qc2+= Nf6 (17...f5 18.Ne5+=) 18.Qc6 (18.e4 Nh5+-) 18...Qc7 (18...Qb8 19.Qa6+=) 19.Qc7+- Bc7 20.Rc1 Rc8 (20...Bd6 21.Nd2+-) 21.Ne5 (21.g3 Kf8+-) 21...Ne4 (21...Ra8 22.Bb2 Nd5 23.Nc4+-) 22.g3 f6 23.Nc6 (23.Nc6 Ra8 24.Bc3+-) 1–0. GuestPHFN – GuestLZQY, freechess.org, 2019.

9.c4 dc4 10.Bc4 c6 11.Nc3 cb5 (11...Qa5 12.Qb1=) 12.Nb5 Bb5 13.Bb5 Nc6 14.Qa4 Qc7 (better 14...0-0!?+=) 15.Qa8 Qd8?? (better 15...Qb8 16.Bc6 bc6 17.Qc6 Ke7 18.Bf6 Kf6+-) 16.Qb7+- (16.Bc6?! bc6 17.Qc6 Qd7 18.Qa8 Qd8 19.Qd8 Kd8 20.Bf6 gf6+-) 16...0-0 17.Qc6 Qa5 (17...Qb8 18.0-0 Rc8 19.Qa6+-) 18.Bf6 gf6 19.0-0 (worse 19.Qd6 Qa1 20.Ke2 Qh1+-) 19...Bb4 20.d4 Rb8 21.Bc4 (21.Bd3 Qd8+-) 21…Rb5 1–0. DEFFM – GuestWVHK, freechess.org, 2018.

9.d4 c6 10.Bd3 (10.bc6 Nc6 11.c4 dc4 12.Bc4 b5=) 10...Qa5 (10...cb5 11.0-0=+) 11.Nbd2 cb5 12.0-0 Nc6 (12...0-0 13.e4 de4 14.Ne4 Ne4 15.Be4=+) 13.e4= de4 14.Ne4 Ne4 15.Be4 Qc7 16.d5 Ne5 (16...ed5 17.Qd5 Be6 18.Qh5+=) 17.Ne5+- Be5 18.Qh5 Ba1 19.de6 Be6 20.Ra1 g6 (20...Qc3 21.Qb5 Bd7 22.Qa5 Qa5 23.Ra5+-) 21.Ra8 (21.Qb5 Ke7 22.Qg5 f6+-) 21...Bc8 22.Qb5 Qd7 1–0. onur604 (2285) – chupa16 (1955), lichess.org, 2020.

9.Be2 0-0 10.0-0 c6 11.Nc3 cb5 12.Nb5 Bc5 (12...Bb5 13.Bb5 Nc6 14.Qb1+=) 13.Qb1+= Na6 14.c4 Bc6 (14...Qa5 15.Be5+-) 15.Nbd4+- Re8? (better 15...dc4 16.Nc6 bc6+-) 16.Nc6+- bc6 17.cd5 Nb4 18.dc6 Nc6 (18...Qc7 19.Rc1 Bd6+-) 19.Bf6 gf6 20.Qb5 Qd5 (20...Ne5 21.Ne5 fe5 22.Qc5 Qd2 23.Bf3+-) 21.Rc1 (21.Rc1 Rb8 22.Qc5 (22.Rc5?! Rb5 23.Rb5 Qa2=) 22...Qc5 23.Rc5+-) 1–0. Gu2119 – Gu3843, internet, 2018.

9.Be2 0-0 10.0-0 Re8 11.Ne5 (11.Be5 Be5 12.Ne5 c6=) 11...h6 (11...c5 12.c4=) 12.f4+= Be5 (12...c5 13.c4+=) 13.fe5+- Nh7 (13...Ne4 14.Nc3+-) 14.Bd3 Rf8 15.Qg4 (15.Bd4 b6+-) 15...f5 (15...c5!?+-) 16.ef6! Rf6? (16...Nf6 17.Qg6 Decoy) 17.Bh7+- Kh7 18.Bf6 gf6 19.Qh4 Kg7 20.Rf3 (20.Nc3 c6+-) 20...e5 21.c4 Be6 22.Rg3 Kh7 (22...Kf7 23.Qh6 Ke7 24.Qh7 Bf7 25.Rg7+-) 23.cd5 Bd5 (23...Bf7+-) 24.Qg4 Qg8 (24...Qf8 25.Qg6 Kh8+-) 25.Qf5 (25.Qf5 Kh8 26.Qf6 Kh7 27.Qf5 Kh8 28.Qe5 Kh7 29.Rg8 Bg8 30.Qc7 Kg6 31.Qd6 Kg7 32.Qb8+-) 1–0. DEFFM – GuestFSVF, freechess.org, 2018.

9.Be5 =.

9.c4 0-0 10.Nc3 (10.Qc2 c6=) 10...c6 11.Ne5 (11.cd5 ed5 12.Be2 Re8=) 11...Be8 12.bc6 bc6 (12...Nc6 13.Nf3=) 13.cd5 (13.d4 Bd6=) 13...cd5=+ 14.Be2 Nc6 15.Nc6 (15.Nf3 e5 16.Nb5 Qb8=+) 15...Bc6 16.0-0 (16.d4 Bd6=+) 16...Qd6 (16...d4 17.ed4 Qd4 18.d3-/+) 17.h3 (17.d4 Ra8=+) 17...Rd8 (17...d4 18.ed4 Qd4 19.d3=+) 18.Qc2 (18.d4 Ra8=+) 18...Nd7 (18...d4!? 19.Nb1 de3 20.de3 Be4=+) 19.d4 (19.Rb1 Rb8=) 19...h6 (19...Nf6 20.Bd3=) 20.Bd3 (20.Bb2 Ra8=) 20...Nf6 (20...Rb8 21.Rb1=) 21.Ne2 (21.Rb1 Ra8=) 21...Bd7 (21...Rc8 22.Nc3=) 22.Bc3 Rc8 23.Rb1 Qa3 24.Rb3 (24.Qb2 Qb2 25.Rb2 Ba4=) 24...Qa4 (24...Ba4 25.Bb4 Qa1 26.Qb1 Qb1 27.Rb1 (27.Bb1? Bb3 28.Be7 Bc2 29.Bc2 Rc2 30.Bf6 Re2-+) 27...Bb4 28.Rb4=) 25.Qb2 (25.Qb1 Bd8=) 25...Ne8 (better is 25...Ne4=) 26.Rb8?? (better is 26.Qb1+=) 26...Qd1-+ 27.Kh2 Bd6 (28.g3 Rb8-+) 0–1. Wall,Bill – Wall,Steve, Stony Point, NC, 1975.

9.c4 dc4 10.Bc4 0-0 11.0-0 c6 12.Nc3 cb5 13.Nb5 Bb5 14.Bb5 Nc6 15.Qb1 Qb6 16.Ng5 g6 17.Bf6 Bf6 18.Ne4 Be7 19.Bc6 Qc6 20.Rc1 Qa6 (20...Qd7 21.d4=) 21.Rc7+- Re8 22.Rb7 Qe2 (22...Rc8 23.Re7 Qa3 24.Nf6 Kf8 25.Re8 (25.Nh7?! Ke7 26.Qb7 Kd8=) 25...Re8 26.Ne8 Ke8 27.d4+-) 23.Qa1 Rc8 1–0. DEFFM – GuestNLRD, freechess.org, 2018.

9.c4 c6 10.cd5 Nd5 (better 10...cd5!? 11.Be2 0-0=) 11.Bg7+- (11.Bg7 Rg8 12.Bb2+-) 1–0. DEFFM – GuestLRGN, freechess.org, 2018.

9.Bd3 0-0 10.0-0 c5 11.c4 Bd6 (11...Qa5 12.Nc3=) 12.Qb3 (12.Qc2 dc4 13.Bc4 Qe7+=) 12...Re8 (12...Ng4 13.cd5 ed5 14.Qd5 Bb5 15.Bh7 Kh7 16.Qf5 g6 17.Qg4+-) 13.Bf6+= Qf6 14.cd5 e5 15.Nc3 Qh6 16.Ne4 f5 17.Nd6 Qd6 18.e4 fe4 (18...b6 19.Re1+- (19.ef5 e4-/+)) 19.Be4 Bg4 (19...Rf8 20.Re1+-) 20.Ng5 h6? (better 20...g6+-) 21.Bh7+- Kf8 22.Ne4 Qd7 (22...Qb6 23.d6 c4 24.Qg3+-) 23.Nc5 (23.f4 Be2 24.Rf2 Qb5 25.fe5 Ke7 26.Rf7 Kd8 27.Qb5 Bb5 28.Rb7 Nd7+-) 23...Qf7 (23...Qe7 24.d6! Qf7 25.Qf7 Kf7 26.f4+-) 24.Qb4 g5 (24...Qd5 25.Nd3 Re7 26.Qg4 Nd7+-) 25.Ne6 1–0. DEFFM – GuestTBDN, freechess.org, 2018.

9.Be2 0-0 10.0-0 c6 11.Nc3 Bb4 12.Ne5 Bc3 13.Bc3 (worse 13.dc3 cb5 14.Qb1 Ne4 15.Nd7 Nd7 16.Qb5 Nd6=+) 13...cb5 14.Qa1 Ne4 15.Bb4 f6? (better 15...Re8!?+=) 16.Bf8 Qf8 (16...fe5 17.Bb4 Nc6 18.f3+-) 17.Nd7+- Nd7 18.Bb5 Ndc5 (better 18...Ne5 19.d4 Nc4+-) 19.d4 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Be2 0-0 10.0-0 Qe8 11.Nc3 Ne4 (11...Bd6 12.b6=) 12.Qb1 Nc3 13.Bc3 Bc5 (13...c5 14.bc6 bc6 15.Qb6=) 14.Ne5 (14.d4 Bd6+=) 14...c6 (14...f6 15.Nd7 Nd7 16.d4+=) 15.Qb2 (better 15.d4 Be7 16.Bb4+=) 15...cb5? (better 15...f6!? 16.Nd7 Nd7+=) 16.Nd7+- Nd7 (better 16...Qd7 17.Bg7 Rc8+-) 17.Bg7 (17.Bb5?! f6+=) 17...f6 (17...b4+-) 18.Bf8 Qf8 (18...Nf8 19.Qf6 b4 20.d4+-) 19.Qb5 b6 (19...Qc8+-) 20.Qd7 1–0. Anonymous – Anonymous, lichess.org, 2020.

9.Be2 0-0 10.c4 dc4=+ 11.Bc4 c6 12.Qa4 cb5 13.Bb5 Bb5 14.Qb5 b6 (14...Qd7 15.Qd7 Nfd7 16.Ke2=) 15.0-0 Nbd7 16.Rc1 Nc5 (16...Qb8 17.Bd4=) 17.Bf6 Bf6 18.d4 Ne4 19.Rc6 Attacking the isolated pawn on b6 19...Qa8 20.Rb6 g6 (20...Rc8 21.Qf1+-) 21.Ra6+= Qc8 (21...Qb8 22.Qd3 Rc8 23.Nbd2+=) 22.Nfd2 Qc1 23.Qf1 Qf1 (23...Qc2 24.Ne4 Qe4 25.Nc3+-) 24.Kf1+- Nd2 25.Nd2 Rc8 26.Ke2 Rc2 27.Kd3 Rb2 (27...Rc7 28.Nc4 Kf8 29.Nd6+-) 28.d5! ed5? (28...h6+-) 29.Rf6 d4 (29...Kg7 30.Rd6 Rb5 31.Kc2+-) 30.ed4 Kg7 31.Ra6 Rb5 32.Ne4 Rb3 33.Kc2 (33.Kc4 Rb1+-) 33...Rb4 34.Kc3 Rb5 35.Ra7 h5 (35...Rf5 36.f3+-) 36.Nd6 Rd5 (36...Rb1 37.Rf7 Kh6 38.h4+-) 37.Nf7 Kf8 38.Ne5 Re5 1–0. GuestGWRV – GuestHKSB, freechess.org, 2018.

9.Ne5 0-0 10.Be2 c6 11.0-0 cb5 12.Nd7 Nbd7 13.Bb5 Nc5 14.f3 b6 15.d4 Nb7 16.Qe2 Nd6 17.Bd3 Nh5 (17...b5 18.e4 Nc4 19.Nd2=) 18.g4 Nf6 19.e4 de4 (19...Nb7 20.g5 Ne8 21.f4=) 20.fe4+/- Nd7 21.e5 Nb7?? (21...Ne8 22.c4+/-) 22.Qf3 (better 22.Qe4 f5 23.Qb7 fg4 24.Qe4 Rf1 25.Bf1+-) 22...Qc7 23.Nc3 Na5 24.Qe4 g6 25.Qe2 Nc6 26.Nb5 Qb7 27.Be4 Qc8 28.c3 Na5 29.Bd3 Nb3 30.Bb2 Kg7 31.c4 Nd4? (better 31...h6+/-) 32.Nd4+- Nc5 33.Bc2 f6 (33...Nd7+-) 34.ef6 Bf6 (34...Rf6 35.Nb5 e5 36.Be5 Ne6+-) 35.Rf6! Rf6 (35...Rf6 36.g5 Decoy; 35...Kf6 36.Ne6 Double attack) 36.g5 Rf4 (36...Kf7 37.gf6 Kg8 38.Qe5+-) 37.Ne6 Kf7 38.Nf4 Qb7 (38...Ne6 39.Ne6 Qe6 40.Qf3 Ke7 41.Qb7 Qd7 42.Bf6 Ke6 43.Qe4 Kf7 44.c5 Qg4 45.Qg4 bc5 46.Bb3 c4 47.Qc4 Ke8 48.Qf7) 39.Nd5 Qd7 40.Qf3 Qf5 41.Bf5 (41.Bf5 gf5 42.Qf5 Ke8 43.Qf6 Kd7 44.Qe7 Kc6 45.Qc7) 1-0. DEFFM – GuestLSXW, freechess.org, 2021.

8.c4 Bb4 9.Nf3 0-0 10.Qc2 c5 11.bc6 (11.Bc3 Bc3 12.Nc3 Re8=) 11...bc6=+ 12.cd5 cd5 13.Be2 Bd6 14.Nc3 Qa5 15.Qa4 (15.0-0 Ba6=+) 15...Qa4=+ 16.Na4 Bb7 17.0-0 Ra8 18.Nc3 Ba6 19.Bb5 (19.Ba6 Ra6 20.Nb5 Be7=+) 19...Bb5 (19...e5 20.d3=+) 20.Nb5 Bb4 21.Bf6 gf6 (21...Nf6 22.Rb1=) 22.Rb1 Ne5 23.d4 Nc4 24.Nc7 Ra2 25.g3 Nb2 26.Na6 Bd6 27.Nc5 Nc4 28.h3 f5 29.Rb7 h6 30.Nd7 Kg7 31.Nde5 Ne5 32.Ne5 Be5 33.de5 Kg6 (33...Ra4 34.Rb3=) 34.Kg2 Rc2 35.Kf3 f6 36.Re7 (36.Rb6 Kf7 37.Rb7 Kg6=) 36...Rc6 37.Kf4 h5 38.h4 Rc4 ½–½. Schaar,Joerg (2100) – Paz,Gustavo (2185), CiF–7er/0078, 2011.

8.c4 c5 9.bc6 bc6 10.Nf3 Ne4 11.cd5 cd5 12.Nc3 Ndf6 13.Bb5 Bd7 14.Qa4 Be7 (14...Nc5 15.Bd7 Nfd7 16.Qc2=) 15.Ne5 Nc3 16.Bc3 Bb5 17.Qb5 Nd7? (17...Kf8+/-) 18.Nd7?? (better is 18.Qc6+–) 18...Qd7= 19.Qd7 Kd7 20.Ke2 (20.Bg7!? Rg8 21.Be5+=) 20...f6= 21.Ra1 Rc8 22.Kd3 Rc6 23.Ra4 e5 24.Ra8 Rc8 (24...Ke6 25.f4+=) 25.Rc8= Kc8 26.f4 Bd6 27.f5 g6 28.fg6 hg6 29.h4 (29.e4!?=) 29...Kd7 (29...f5 30.Ke2+=) 30.g4 ½–½. Reschke,Rene – Jaekel,Matthias, Lauenburg op, 2009.

8.c4 Nc5 9.Nf3 dc4 10.Bc4 Nd3 11.Bd3 Qd3 12.Nc3 Bb4 13.Ne5 Qf5 14.Nf3 Qd3 15.Qe2 Qe2 16.Ke2 Bc3 (16...Bd7 17.Rb1 Bd6 18.Na4=) 17.Bc3+= 0-0 (17...Nd5 18.Bg7 Rg8 19.Be5+/-) 18.Be5 c6 (18...Bd7!? 19.Rb1 c5+=) 19.bc6+/- bc6 20.Rc1 (20.Ra1 Rd8+/-) 20...Ba6 21.Ke1 Bb5 22.Nd4 Ng4 23.Bg3 (23.Nb5? Ne5 (worse 23...cb5 24.Bg3+/-) 24.Nd6 Nd3 25.Kd1 Nc1 26.Kc1 e5-+) 23...e5 (23...Ra8 24.Nc6 Nf6 25.f3+/-) 24.Nb5 cb5 25.h3 Nh6 26.Be5 Nf5 27.Ke2 (27.Rc5 b4+-) 27...Re8 (27...f6 28.Bf4+-) 28.Bc3 (28.Rc5 b4+-) 28...Nd6 (28...f6 29.g4 Ne7 30.Rb1+-) 29.Rb1 (better 29.Bb4 Rc8 30.Ra1+-) 29...Rb8? (better 29...f6+-) 30.Be5 Rb6 31.Bd6 Rd6 32.Rb5 g6 33.d4 Ra6 34.h4 Ra2 35.Kf3 h5 36.g4 (better 36.Rb3!? Kf8+-) 36...hg4 37.Kg3 f5 38.h5! Kg7 (38...gh5 39.Rf5 Deflection) 39.hg6 Kg6 40.Re5 Rd2 41.Re6 Kg5 42.Re5 Kf6 (42...Kg6 43.f3 Rd1+-) 43.f3+/- gf3 44.Kf3 Rh2 45.Rc5 1-0. BeepBeepImAJeep (2655) - chessjim79 (2120), lichess.org, 2017.

8.c4 c6 9.Nf3 Bd6 10.Be2 0-0 11.0-0 Qc7 12.d4 dc4 13.Bc4 cb5 14.Bb5 Nb6 15.Bd3 Bd7 16.Nc3 Nbd5 17.Qb3 Nc3 18.Bc3 Bc6 19.Rc1 (better 19.Ne5!?=) 19...Bf3-/+ 20.gf3 Bh2 21.Kg2 Bd6 22.e4 Bf4 23.Rc2 Qd7 (23...Rd8 24.Bd2 Qb8 25.Bf4 Qf4 26.Qb7 Qg5 27.Kf1=+) 24.Bc4 (24.Bb5!? Qe7 25.Bb4=+) 24...Nh5 25.Kf1 Ra8 26.d5 ed5 27.Bd5 Rb8 28.Bd4 Qh3 (28...b5!?=+) 29.Ke2 Bh6 (better 29...Rf8!?=) 30.Bf7+/- Kh8 31.Bh5 Qh5 32.Qb7 Rf8 (32...Rb7?? 33.Rc8 Qe8 34.Re8) 33.e5 Qf5 34.Qe4 Qe6 35.Rc6 Qa2 36.Kf1 Bg5 (36...Qa8 37.e6 Re8 38.e7+-) 37.Kg2 1-0. BeepBeepImAJeep - maurag (2410), lichess.org, 2018.

8.d4 b6 9.Nf3 Bb7 10.Bd3 Bd6 11.0-0 0-0 12.Nbd2 c6 (12...Qe7 13.c4=) 13.e4 (13.bc6 Bc6 14.c4 Qa8+=) 13...de4 14.Ne4 Ne4 15.Be4 Qc7 16.Qd3 cb5 (16...Nf6 17.Bc6 Bc6 18.bc6 Qc6 19.c4=) 17.Bh7 Kh8 18.Be4 Nf6 (better 18...Be4!? 19.Qe4 Nf6=+) 19.Bb7+= Qb7 20.Qb5 Rc8 21.c4 Qc7 22.Rc1 Ng4? (better 22...Bf4!? 23.Rc2 Qa7+-) 23.Qh5+- Nh6 24.d5 ed5?? (24...Bf4 25.Re1 ed5 26.cd5 Kg8+-) 25.Qh6 (25.Qh6 Kg8 26.Qg7) 1–0. DEFFM – GuestJJXG, freechess.org, 2019.

8.d4 Nb6 9.Nd2 (9.Nf3 Bd6=) 9...Bd7 10.Ngf3 (10.Bd3 Bd6=) 10...Bb4 (10...Bd6 11.Bd3=) 11.Bd3 0-0 (11...Ne4 12.0-0= (worse 12.Be4 de4 13.Ne5 Qg5=+)) 12.0-0 Bd2 (12...Qe7 13.Ne5=) 13.Qd2 (13.Nd2 Qe7+=) 13...Nc4 (13...Ne4 14.Qb4+=) 14.Qb4 Nd6 (14...Ne4+=) 15.c4 (15.Bb2!?+=) 15...dc4= 16.Bc4 Nc4 17.Qc4 c6 18.bc6 Bc6 19.Ne5 Bd5 20.Qb4 Qc7 (20...Nd7 21.f3=) 21.Bb2 (21.f3 Bc6+=) 21...Rc8 (21...Ra8 22.f3+=) 22.h3 (22.f3 Bc6+=) 22...Ne4 (22...b5 23.Rc1 Bc4 24.Qe1=) 23.Rc1+= Qd8 24.Rc8 Qc8 25.f3 Nf6 (25...Ng3 26.Qe1 Qc2 27.Qg3 Qb2 28.Ng4 Qa1 29.Kh2+-) 26.e4 Ba2? (better 26...Bc6!?+=) 27.Qa3 (27.Qe7 Qe8 28.Qb7 Bb1+-) 27...Bb1 28.Qc5 (28.Qe7 Qf8 29.Qb7 Bc2+-) 28...Qa8 (28...Qf8 29.Qc1 Ba2 30.Qc7+-) 29.Ba3 (29.Qe7 Qe8 30.Qb7 Bc2+-) 29...h6? (better 29...b5+=) 30.Qe7+- Qe8 31.Qe8?? (better 31.Qb7 Ba2 32.Bc5+-) 31…Ne8+=. GuestPCKQ – GuestNLSS, freechess.org, 2016.

8.d4 c5 9.bc6 bc6 10.Bd3 c5 11.c4 cd4 12.Bd4 Qa5 13.Bc3 Bb4 14.Qd2 Ne5 15.Be2 (15.Be5 Bd2 Pinning (15...Bd2 Deflection)) 15...Bc3 16.Qc3 Qc3 17.Nc3 Nc4 18.Bc4 dc4 19.Nf3 Ke7 20.Ke2 Bb7 21.Ra1 Ra8 22.Ra8 Ba8 23.Ne5 Bg2 24.Nc4 Bb7 25.Ne5 Ne4 26.Ne4 Be4 27.f3 f6 28.Nc4 Bd5 29.Nd2 e5 30.e4 Be6 31.Ke3 h5 32.Nf1 h4 33.Kd3 Kd6 34.Ne3 Kc5 35.Kc3 Bh3 36.Kd3 Be6 37.Kc3 Bh3 38.Kd3 Bd7 39.Kc3 Be6 40.Kd3 g6 41.Ng2 h3 42.Ne3 f5 43.ef5 gf5 44.Nd1 Bd5 45.Ne3 f4 46.Ng4 Kd6 (46...Bf3?! 47.Ne5 Bg2 48.Ng6=) 47.Ke2 Be6 48.Nf2 Bf5 49.Kd2 Kd5 50.Kc3 Be6 51.Kd3 Bf5 52.Kc3 Kd6 53.Kd2 Kc5 54.Kc3 Kd5 55.Kd2 Kd4 56.Ke2 Bc8 57.Kd2 Bf5 58.Ke2 Kc3 59.Nd1 Kc4 60.Nf2 Kc3 61.Nd1 Kd4 (better is 61...Kb4-+) 62.Nf2= ½–½. Henke,Simon – Richter,Klaus, RD–2010-0-00048, 2011.

8.d4 c6 9.Bd3 (9.bc6 bc6 10.Nf3 Ne4=+) 9...Qb6 (9...cb5 10.Nd2=+ (10.Bb5? Qa5 11.Nc3 Bb4-+)) 10.Nd2 cb5 11.Ngf3 Bd6 12.0-0 0-0 13.e4 (13.Qe2 b4=+) 13...de4 14.Ne4 (14.Be4 Qc7=+) 14...Ne4 15.Be4 Nf6 16.Bd3 Bd7 17.Ne5 Bc6 18.Qb1 Attacking the isolated pawn on b5 1–0. Anonymous – Anonymous, lichess.org, 2020.

8.d4 Ne4 9.Nd2 Ndf6 10.Ngf3 Bb4 11.Bd3 c6 12.0-0 0-0 13.c4 Bd6 (better 13...cb5!? 14.cb5 Bd7=) 14.c5+/- Bc7 15.b6 Bb8 16.Qc2 Nd2 17.Nd2 Bh2?? (better 17...h6+/-) 18.Kh2+- Ng4 19.Kg1 Qh4 20.Nf3 Qh5 21.e4 (21.g3 Qh3+-) 21...f5? (21...de4 22.Be4 f5 23.Bd3+-) 22.e5 g5 (22...h6 23.Bb2+-) 23.Qa4 (23.Bc3 Nh6+-) 23...f4 24.Qc2 Rf7 25.Bc3 Nh6 26.Ra1 g4 27.Ra8 (27.Nh2 g3 28.Nf3 gf2 29.Qf2 Rf8+-) 27...Rf8 28.Ne1 g3 29.f3 Nf5 30.Bf5 ef5 31.Kf1 Qh1 32.Ke2 Qg1 33.Qd2 (33.Qd2 Qf2 34.Kd1+-) 1-0. onur604 (2320) - killer81 (2230), Casual Rapid game, lichess.org, 2021.

8.Nf3 Bc5 9.Be2 (9.d4 Bb4 10.Bc3 Bd6=) 9...0-0 (9...Bd6 10.Bb2=+) 10.0-0= b6 (10...Bd6 11.d4=) 11.c4 (11.Nd4 Bb7=) 11...dc4 12.Bc4 Bb7 13.d4 Bd6 14.Bd3 h6 (14...Nd5 15.Nc3=) 15.Nbd2 Nh7 (15...Nd5 16.Nc4=) 16.e4 (16.Qc2 Ng5+=) 16...Ng5 17.Bc3 (17.Qe2 f5+=) 17...Re8 (17...c5 18.bc6 Bc6 19.Qb3+=) 18.Ng5 (18.Qe2 Nf3 19.Nf3 e5+=) 18...Qg5 19.Nf3 Qd8 (19...Qh5 20.Qc2=) 20.e5 (20.Qc2+=) 20...Bf3 (better 20...Be7!?+=) 21.Qf3+- (21.gf3?! Qg5 22.Kh1 Be7+=) 21...Be7 (21...Ba3 22.Ra1 Be7 23.Ra7+-) 22.Ra1+- Nb8 (22...Rf8 23.Qe4 g6 24.Bc4+-) 23.Qe4 g6 24.Bc4 White prepares the advance d5 24...Qd7 (24...Kg7 25.Ra7+-) 25.d5 ed5 (25...Kh7 26.Ra7 ed5 27.Qd5 Qd5 28.Bd5+-) 26.Bd5 (26.Qd5?! Qd5 27.Bd5 Rd8+-) 26...Kf8? (26...Qf5 27.e6 Rd8 28.ef7 Kf8+-) 27.e6 fe6 28.Qg6 Bc5 (28...Bg5 29.Bb4 Qd6 30.Bd6 cd6 31.Ra7 Re7 32.Be6 Ra7 33.Qg8 Ke7 34.Qf7 Kd8 35.Qf8 Kc7 36.Qc8) 29.Qh6 Kg8 30.Qh8 Kf7 31.Qg7 1–0. DEFFM – GuestNCZV, freechess.org, 2018.

8.Nf3 e5 9.Ne5+/– (9.Be5 A) 9...Be7 10.Bc3 (10.Bb2 0-0 11.Be2 Re8 12.0-0 Bd6 13.Nd4 Nc5 14.f4 Nce4+=) 10...0-0 11.Be2 Re8 12.0-0 c5 13.bc6 bc6 14.Nd4 Nb8+=; B) 9...Ne5 10.Ne5 Bd6 11.Nf3 0-0 12.Be2 Re8 13.0-0 Qe7 14.d4 Ne4+=) 9...Ne5 (9...Ne4 10.Nd7 (10.Nf3 Ndf6 11.Be2 Bd6 12.d3 Nc5 13.Be5 0-0 14.0-0 Re8+/–) 10...Bd7 11.Nc3 Qg5 12.b6 c6 13.Qf3 Qh4 14.g3 Qe7+/–) 10.Be5 Bd6 11.Bd4 c5 (11...0-0 12.Nc3 Be6 13.Qf3 Be7 14.Bd3 c5+/–) 12.bc6 bc6 13.c4 Bf5 (13...0-0 14.Nc3+= (14.c5 Bc7+=) 14...Ne4+=) 14.cd5 Nd5 (14...cd5+/–) 15.Bg7 Rg8 16.Bd4 Nb4 17.Na3 Qa8 18.Bb2 Nd3 (18...Bd3!? 19.Qb3 Qa6+/–) 19.Bd3+/– Bd3 20.Qb3 Qa6 21.Rg1 (better is 21.g3!?+/–) 21...Ke7= 22.f4 Rb8 23.Qc3 Rb2 (23...Rb2 24.Qb2 Ba3 25.Qe5 Kd7=). pvanr (2065) – carp_a_tex (2090), gameknot.com, 2010.

9.Qc2 dc4 10.Bc4 Nc4 11.Qc4 Be7 (11...b6 12.f4+=) 12.Be5 (12.Nf3 0-0 13.0-0 Nd7=) 12...Bd6 (12...Qd5!? 13.Qd5 Nd5+=) 13.Nf3 0-0 (13...b6 14.Nc3=) 14.0-0 (14.Nc3 b6=) 14...b6 15.Rc1 Bb7 16.Bd6 cd6 (worse is 16...Qd6 17.Qc7 Qc7 18.Rc7 Bf3 19.gf3+/–) 17.Nd4 Nd5 (17...Qd7 18.Nc6=) 18.Nc3+= Nc3 19.Rc3 (19.Qc3 Qd7+=) 19...Bd5 (19...Qg5 20.Nc6 Ra8 21.h3+=) 20.Qe2 (20.Qd3 f5+=) 20...e5 (20...Qf6!?=) 21.Nc6+= Qg5 (21...Qd7 22.e4 Ra8 23.h3 Bc6 24.Rc6+/–) 22.e4 (22.f4 Qf6 23.Qd3 Bc6 24.bc6 (24.Rc6?! ef4 25.ef4 Qf4+=) 24...ef4 25.c7 fe3 26.Qe3+/–) 22...Ra8+= 23.Rc1 (23.g3 Be6 24.h4 Qg4 25.Qg4 Bg4+/–) 23...Be6 24.Qd3 h5 (24...h6 25.Qd6 Ra2 26.Rb1=) 25.Qd6 Bh3 (25...Ra2 26.Qe5 Qe5 27.Ne5 Rd2 28.f4+=) 26.g3 Ra2?? Attacking the backward pawn on d2 27.Ne7+- Kh7 28.Qd8 Qf6 29.Qg8 Kh6 30.Qh8 Kg5 31.Nd5 Qh6 Black prepares the advance h4 32.Qd8 f6 33.Qb6 Rd2 34.Ne7 Re2?? 35.Qc6 h4 36.Qc4 Kh5 37.Qe2 Bg4 38.Qe3 g5 39.f3 Qg7 40.fg4 Kg4 (40...Kh6 41.Nf5 Kg6 42.Ng7 hg3 43.Nf5 gh2 44.Kh2 Kf7 45.Qa7 Ke6 46.Rc6#) 1–0. Karacsony,Zsolt (2070) – Leaua,Cristinel, Techirghiol op, 1999.

9.Qc2 dc4 10.Bc4 Nc4 11.Qc4 Be7 12.Nf3 b6 13.Bc3 (13.Ne5 Bb7 14.Nc6 Qd5 15.Qd5 Nd5=) 13...Bb7 14.Bb4 (14.0-0 Bf3 15.gf3 0-0=) 14...Bf3 15.gf3 0-0 16.Be7 Qe7 17.Nc3 Ra8 18.Ke2 (18.0-0 Qd7=+) 18...h6 19.Ne4 Ne4 20.Qe4 Qc5?? (better 20...Ra3=+) 21.Qa8+- Kh7 22.Qc6 Qb4 (22...Qg5 23.h4 Qh5 24.d3+-) 23.Qe4 (23.Qe4 Qe4 24.fe4+-) 1-0. AhmedSultanov (1695) - Hawkeye_809 (1725), lichess.org, 2019.

9.Qc2 dc4 10.Bd4 Nfd5 11.Bc4? (better is 11.Nf3+=) 11...Nb4-+ (11...Nc4?! 12.Qc4 Qg5 13.g3+=) 12.Qb3 Nc4 13.Qc4 e5! 14.Bc3 (14.Be5 Nd3 A double attack) 14...Be6 15.Qe4 f5 16.Qf3 Nd3 (16...Qd3 17.Na3 Nd5 18.e4 Qf3 A) 19.gf3?? Nc3 (19...Ba3?! 20.ed5 Bd5 21.Be5-+) 20.dc3 Ba3-+; B) 19.Nf3 Nc3 20.dc3 Ba3 21.ef5 Bf5 22.Ne5-+) 17.Kf1 Nc5 18.Qe2 e4 19.Na3 Qd5 20.Qd1 Qa2 21.Qa1 Qa1 22.Ba1 Nb3 23.Bb2 Nd2 24.Ke1 Bb4 25.Kd1 0-0 26.Nc2 Ba5 27.Kc1 Nb3 28.Kb1 Rd8 29.Nh3 Bc4 30.Na3 Bd3 31.Ka2 Nc5 32.Bd4 Ne6 33.Be5 Bb4 34.Rc1 Ra8 35.Bb2 Bb5 36.Kb3 Ba3 37.Ra1 Nc5 38.Kc2 Ba4 39.Kb1 Bb2 40.Kb2 b5 41.Kc3 Nd3 42.f3 c5 43.fe4 fe4 44.Ng5 Re8 45.Ne4 Re4 46.Kd3 Re8 47.e4 c4 48.Kd4 c3 49.Kc3 Re4 50.Kd3 Rg4 51.g3 Rb4 52.Rc1 h6 53.Ke3 Rb2 54.h4 Rb3 55.Kf4 Rd3 56.Rc8 Kh7 57.Ra8 Bd1 58.Rb8 Rf3 59.Ke5 Rg3 60.Rb5 Rg4 61.Rb1 Bc2 62.Rb2 Bg6 63.Rh2 Re4 64.Kd5 Re8 65.Kd4 Bf5 66.Rh1 h5 67.Rh2 Kh6 68.Rf2 Re4 69.Kd5 g6 70.Rh2 Re3 71.Rf2 Rh3 72.Rf4 Bg4 73.Ke5 Rh4 74.Kf6 Rh3 75.Rb4 Rf3 76.Ke5 Kg5 77.Rb8 h4 78.Rh8 h3 79.Ke4 Rf7 80.Ke3 Bh5 81.Rb8 h2 82.Rh8 Rf1 (82...Rf1 83.Rc8 h1Q 84.Rc5 Kg4 85.Rc4 Kg3 86.Ra4 Rd1 87.Rg4 Kg4 88.Ke2 Qf3#) 0–1. Saarenpaa,Toivo – Julkunen,Tapio, Ch Finland (team), 2006.

9.Qc2 dc4 10.Nf3 Nfd5 11.Bc4 Nb4 +=.

9.cd5 ed5 10.Qc2 Bd6 (10...Nbd7 11.Nf3=) 11.Be2 (11.Bd4 Nbd7=) 11...Qe7 12.Nf3 Bg4 13.0-0 Ne4 (13...0-0 14.Bd4=) 14.d3 (14.Bg7 Rg8 15.Bh6 Bh3-/+) 14...Ng5 (14...Nf6 15.Bd4=) 15.Ng5+= (15.Bg7 Nf3 16.Bf3 Bf3-+) 15...Qg5 16.Bg4 (16.f4 Qg6+=) 16...Qg4 17.h3 Qg6 18.Nd2 (18.Bd4 Nc8+=) 18...0-0= 19.Qb3 (19.Bd4!?=) 19...Ra8+= 20.Bd4 (20.Qc2 Ra5+=) 20...Ra3-/+ 21.Qb1 (21.Qd1 Qd3 22.Qg4 Bf8 23.Bb6 cb6-/+ (worse is 23...Qd2 24.Bc7 Qc3 25.Qd7+=)) 21...Qd3 22.Nf3 (22.Rd1 Nd7-/+) 22...Qb1-+ 23.Rb1 Nc4 24.Kf1 f6 25.Ke1 Ra2 26.Nh4 Na3 27.Rd1 (27.Rb3 Kf7-+) 27...Nc2 (better is 27...Bb4!? 28.Kf1-+) 28.Kf1 Nd4 (28...Kf7!? 29.Nf5 Bb4 30.Rb1-+) 29.Rd4-/+ c6 30.Nf5 Bc5 (30...Bf8 31.Rd1 Ra5 32.Nd4-/+) 31.Rd1 cb5 (31...g6 32.bc6 bc6-/+ (32...gf5 33.cb7 Rb2 34.Rd5-/+)) 32.Rd5+= b6 33.Nd4 (33.Rd7 b4 34.Rg7 Kf8-+) 33...b4-/+ 34.Nb3 Rc2 35.Ke1 (35.Rd2 Rc3 36.Nd4 Bd4 37.ed4 Kf7-/+) 35...Kf7 (35...Rc3 36.Nd2-/+) 36.Rd2 (36.Rd7 Kg6-/+) 36...Rc3-/+ 37.Rb2 Ke6 38.Ke2 Kd5 39.Nd2 f5 40.g3 Kc6 (40...h6 41.Nf3-/+) 41.h4 Kb5 42.Nb1 Rc1 43.Kd2 Rh1 44.Kc2 (44.Kd3 Rd1 45.Nd2 g6-/+) 44...Be7 (better is 44...Bd6 45.Nc3 Kc4-+) 45.Kd3 (45.Nc3 Kc4 46.Nb1 Rh2-+) 45...Rd1 (better is 45...Bf6 46.Rb3 Ka4-+) 46.Ke2-/+ Rc1 (46...Rd8 47.Na3 Ka4 48.Nc2-/+) 47.Kd2 Rc6 48.Kd3 (better is 48.Na3!? Ka4 49.Nc2-/+) 48...Bf6-+ 49.Rc2 Rd6 (49...Rc5 50.Kd2-+) 50.Ke2 b3 51.Rd2 Rd2 52.Kd2 Kb4 (52...g6 53.Kd3-+) 53.Kd3 h5 54.e4?? (better is 54.Kd2-+) 54...fe4 55.Ke4 b2 56.Kd3 Kb3 57.Kd2 b5 58.Kd3 b4 59.Kd2 (59.Nd2 Ka2 60.Kc2 b3 61.Kd3 b1Q 62.Nb1 Kb1-+) 59...Bc3 (better is 59...Ka2 60.Ke3 Kb1 61.Kd2-+) 60.Kd1 (60.Kd3 Ka2 61.Nc3 bc3 62.Kc3 b1Q-+) 60...Bd4 (better is 60...Ka2 61.Kc2 Be1 62.Kd3 Kb1 63.Ke3-+) 61.Nd2 Kc3 (better is 61...Ka2 62.Kc2 Bf2-+) 62.Nb1 Kd3 (62...Kd3 63.f4 Bf2-+) 0–1. Hanscombe,Richard (1755) – Carpenter,Raymond (1930), British Chess Championships: Week, 2015.

9.cd5 ed5 10.Nf3 Be6 11.Be2 Bb4 12.0-0 0-0 13.Nc3 (13.Bd4 Nbd7=) 13...Ne4 (13...Qe7 14.Na4 Nbd7 15.Qc2=) 14.Nd4 Nc3 15.dc3 (15.Bc3 Bc3 16.dc3 Qh4=) 15...Bd6=+ 16.Ne6 fe6 17.c4 Nc4 18.Bc4 dc4 19.Qd4 Qg5 20.Qc4 Qe5?? (better 20...Qd5 21.Qg4 e5=) 21.Be5+- 1-0. BeepBeepImAJeep (2590) - ediboss21 (2420), lichess.org, 2018.

9.cd5 Nbd5 10.Nf3 =.

9.cd5 Nbd5 10.Bc4 Nb6 11.Be2 Qd5 12.Nf3 Bd7 13.Nc3 (13.Bf6 gf6 14.Nc3 Qc5+=) 13...Qd6 (13...Qf5 14.d4+=) 14.Qc2 (better 14.0-0+=) 14...Nfd5? (14...Be7!?=) 15.0-0 (15.Nd5 Nd5 16.0-0 f6+-) 15...Nb4 (15...f6 16.Bb2+-) 16.Qb1 f5 (16...f6 17.Ne4 Qe7 18.Bd4+-) 17.Na2 N4d5 (17...Na2 18.Qa2 Qd5 19.Qc2+-) 18.Be5 Qc5 (18...Qa3 19.Nc3+-) 19.Rc1+- Qe7 (19...Qa3 20.Nc3+-) 20.d3 Qd8? (20...Qf7 21.Bc7 Ba3 22.Bb6 Nb6+-) 21.e4 Bd6 (21...Ba3 22.Rc2 (22.ed5?! Bc1 23.Qc1 Nd5+-) 22...fe4 23.de4+-) 22.ed5 Be5 (22...Nd5 23.Qb2+- (23.Bg7?! Rg8 24.Be5 Be5 25.Ne5 Nf4+-)) 23.Ne5 Nd5 24.Bh5 g6 25.Bf3 0-0 26.Nc3 Bc8 (26...Nc3 27.Rc3 Be8 28.Rb3+-) 27.Nd5 ed5 28.Qc2 Re8 (28...g5 29.Qc7 g4 30.Bd1+-) 29.Qc7 Qc7 30.Rc7 Re5 31.Rc8 Kf7 32.Rc7 Kf6 (32...Ke8 33.Kf1 Re7 34.Re7 Ke7 35.Bd5+-) 33.Kf1 Re7 (33...b6 34.Rc6 Re6 35.Bd5 Rc6 36.bc6+-) 34.b6 Ke6 (34...Re8+-) 35.Bd5! Kd6 (35...Kd5 36.Re7 Deflection (36.Re7 Overloading)) 36.Re7 Ke7 37.Bb7 Kd8 (37...Kd6 38.d4 h5+-) 38.d4 Kd7 39.d5 1–0. GuestVNCM – GuestZYGG, freechess.org, 2020.

9.Bc4 Nb6 10.Be2 Bd7 11.Nf3 Bd6 12.Nc3 0-0 13.0-0 Qe8 14.d4 Nbd5 15.Qb3 Nc3 (15...Qe7 16.Bc4=) 16.Bc3+= Nd5 17.Bb2 b6 (17...c6 18.bc6 Bc6 19.Ba3 Ba3 20.Qa3=) 18.Rc1 Bc8 19.Nd2 Bb7 20.Bf3 Qe7 21.Nc4 Rd8 22.Nd6 Qd6 (22...cd6 23.e4 Nc7 24.d5+=) 23.Ba3 (23.e4!? Nf4 24.e5+-) 23...Qd7+= 24.Qc4 h6 25.h3 g6 (25...Rc8 26.Qd3+=) 26.Bd5 (26.e4 Nf6 27.Qc7 Qc7 28.Rc7 Rb8+/-) 26...Bd5 27.Qc7 Qe8 (27...Qc7!? 28.Rc7 Ra8+/-) 28.Qb6 Rb8 29.Qd6 Qb5 30.Rc7 Re8 (30...Qb1 31.Bc1+-) 31.Qd7 (better 31.Qf4!? Qb1 32.Bc1+-) 31...Qd7+/- 32.Rd7 Ra8 33.Bc5 (33.Bd6 Ra2+/-) 33...Ra1 34.Kh2 Ra2 35.Kg3 Ra1 (35...g5 36.f3+=) 36.f3 Rf1 (36...f5 37.Be7+/-) 37.e4+- Bc4 38.Rd8 Kg7 (38...Kh7 39.h4+-) 39.Bd6 (better 39.Bf8!? Kh7 40.Rd7 Bd3+-) 39...g5 40.Be5 (40.Kg4 Be2+-) 40...f6+/- 41.Rd7 Kg6 42.Bd6 Rd1 (42...h5!?+/-) 43.Bf8+- h5?? (better 43...Rd2 44.Rg7 Kh5+/-) 44.Rg7 Kh6 45.Rc7 Kg6 46.Rc4 Kf7 47.Bc5 e5 (47...h4 48.Kh2+-) 48.d5 (48.de5 fe5 49.Be3 g4 50.hg4 hg4 51.Kg4 Re1 52.Rc7 Ke6+-) 48...f5 49.ef5 (49.Bd6 Rd4 50.Rd4 ed4+-) 49...Kf6 (49...Rd5 50.h4 Kf6 51.Be3 gh4 52.Kh4 Kf5 53.Kh5+-) 50.Be3 (50.d6 Rd5+-) 50...Kf5 51.Re4 (51.Rc5 g4+-) 51...h4 (51...Rd5 52.Bg5! Kg5 53.Re5 Re5 54.f4 Kf6 55.fe5 Kg5 56.e6 h4 57.Kf3+-) 52.Kh2 (better 52.Kf2!? Rd5 53.Rg4 Ra5+-) 52...Rd5 (52...Rd3 53.g3+-) 53.Rg4 1-0. BeepBeepImAJeep (2550) - Tembos (2050), lichess.org, 2017.

9.Bc4 Nb6 10.Be2 Be7 11.Nf3 0-0 12.0-0 Ne4 13.Qc2 Bf6 (13...Nd6 14.Rc1+=) 14.d4+- Nd6 15.Rc1 Bd7 16.Na3 Qa8 (16...Nd5 17.Bd3+=) 17.Bb2+- Rc8 18.e4 (18.Bd3 h6+-) 18...Be7 (18...c6 19.bc6 Rc6 20.Qb1+=) 19.Ra1 Qa4 The pressure on the isolated pawn grows 20.Qb1 (20.Qd3 Ra8+=) 20...Qa8 (better 20...Qb3!?=+) 21.Ne5 (21.Nc4 Ndc4 22.Ra8 Ra8+-) 21...Be8 (21...Qb8+-) 22.h3 (22.Nac4!? Qb8 23.Nb6 cb6 24.Ba3+-) 22...Qb8 23.Qc2 c6 24.bc6 Bc6 25.Qb3 Nd7 26.d5 (worse 26.Nc6 bc6 27.Qc2 Ne4=+) 26...Ne5 (26...Ne4 27.dc6 Ne5 28.cb7+=) 27.Be5+- Bd7 (27...ed5!? 28.ed5 Be8+-) 28.Nc4+- ed5 (28...f6 29.Bd6 Bd6+-) 29.Qg3 (29.ed5?! f6 30.Nd6 Bd6 31.Bd6 Qd6 32.Qb7 Qe5+-) 29...f6 30.Bd6 Bd6 31.Nd6 (31.Qd6 dc4 32.Qd7 c3+-) 31...Rc6 32.Nf5 Qg3 33.Ng3 d4 (33...de4 34.Ne4 f5 35.Rd1 fe4 36.Rd7 Rc1 37.Rd1 Rd1 38.Bd1+-) 34.Rd1 Rd6 35.Bc4 Kf8 36.Bd5 b5 37.Rd4 1–0. Dziedzic,Ferdynand – Karolak,Jan, Ogolnopolski Integracyjny Turniej Szachowy Poland, 2008.

9.Bc4 Nb6 10.Be2 Be7 11.Nf3 0-0 12.Qc2 Nfd5 13.0-0 Bf6 (13...f6!?=) 14.Bf6+= Qf6 15.Re1 (15.d4 Qh6+=) 15...Qd8 (15...e5!?=) 16.Rc1 Bd7 17.g3 c6 18.bc6 Bc6 19.Ne5 Nb4 20.Nc6 Nc6 21.Bf3 Nb4 22.Qc7 Nd3 23.Qd8 Rd8 24.Rc7 Ne1 (24...g5 25.Kf1+=) 25.Bb7 Rb8 (25...Nd3 26.Be4 f5 27.Bd3 Rd3 28.f4+/–) 26.Nc3 Na8 27.Ba8 Ra8 28.d4 h6 29.Ne2 Ra2 30.Nc1 Ra1 31.Nb3 Rb1 32.Rc8 Kh7 33.Rc1 Nf3 34.Kg2 Nh4 35.gh4 Rb3 36.Rc7 Kg6 37.h5! Kf6 38.e4 e5 39.d5 Rd3 40.Rc6 Ke7 41.Rc7 Ke8 42.f3+/– Rd2 43.Kg3 Rd1 44.h4 Rg1 45.Kh2 Rd1 46.Rc8 Ke7 47.Rc7 Kf6 48.Rd7 Rd2 49.Kg3 Rd1 50.Kf2 Rd2 51.Kg3 Rd1 52.Rc7 Rg1 53.Kh2 Rd1 54.Rc6 Ke7 55.Rc2 f5 56.Rg2 Kf7+= 57.Rg6 fe4? 58.fe4+/– Re1 59.Rg4 Re2 60.Kg3 Rd2 61.Rg6+- Rd4 62.Kf3 Rd1 63.Re6 Rf1 64.Kg3 Rg1 65.Kf2 Rg4 66.Re5 Rf4 67.Kg3 Rf1 68.d6 Kf6 69.Rf5! Rf5 70.ef5 Kf7 71.Kf4 Ke8 72.Ke5 Kd7 73.Kd5 (73.Kd5+-) 1–0. Huelle,Gunter (1840) – Werther,Jens, Leipzig VfB op, 2007.

9.Bc4 Nc5 10.Qc2 Be7 (10...Nd5 11.d4 Nb4 12.Qe2=) 11.Nf3 0-0 (11...Nce4 12.0-0+=) 12.0-0 b6 (12...Ncd7 13.Rd1=) 13.d4 (13.Bf6 gf6 14.d4 Nd7+/-) 13...Nce4 14.Ne5 Bb7 15.Be2 (better 15.Bd3+/-) 15...Qd5? (15...Nd6 16.Nd2+=) 16.Bc4 (better 16.f3+-) 16...Qd8+/- 17.Nc3 (17.Bd3 Nd6 18.Nd2 Qa8+=) 17...Nc3+= 18.Bc3 Bd6 19.Be2 (19.Bd3 Qe7+=) 19...Be5 20.de5 Nd5 21.Bd4 Qg5 22.Bf3 Ra8 (22...Nb4 23.Qe2 Bf3 24.Qf3+=) 23.Rc1 (23.e4 Qg6 24.Ra1 Ra1 25.Ba1 h5+/-) 23...h5 24.Qd1 h4 (better 24...Rc8!?+/-) 25.e4+- Nf4 (25...Ra2 26.Rc4 Nf4+-) 26.Rc7 Rb8 27.Be3 Qe5 28.Qd7 Qa1 29.Rc1 Qf6? (29...Qe5 30.Bd4 Qg5+-) 30.Qd6 (30.Bb6 h3 31.Rb1 hg2+=) 30...Nh3 31.gh3 Rd8 32.Qf4 (better 32.Qb6!? Rd7 33.Rc7 Rd3+-) 32...Qg6 (32...Qf4 33.Bf4 Rd4+-) 33.Qg5 (33.Qg5 Qg5 34.Bg5+-) 1-0. BeepBeepImAJeep (2680) - StoofBuzze (2385), lichess.org, 2015.

9.Nf3 Nb6 10.Qc2 Be7 (10...Bd7 11.Bc4 Nc4 12.Qc4=) 11.Ne5 c4 seems the pivot of the position 11...Qd5 12.Nc4 Nc4 13.Qc4 Qc4 14.Bc4 Bd7 15.0-0 0-0 16.Nc3 (16.Bf6 Bf6 17.Nc3 Ra8=) 16...Ng4 (16...Ra8 17.Rc1=) 17.d4= Bd6 (17...Ra8 18.e4=) 18.h3+= Nh6 19.Bb2 Nf5 20.Ne4 Be7 21.Ra1 c6 22.b6 Nd6 23.Bd3 (better 23.Nd6!? Bd6 24.Ra7+/-) 23...Ne4= 24.Be4 Bd6 (24...Rb8!? 25.Rb1 Ra8=) 25.Ra7 Bc8 26.Bc3 Bb8 27.Ra1 f5 28.Bd3 Kf7 29.Bc4 Ke7 30.f4 g6 31.Kf1 h6 32.Ke2 g5 33.Kd3 (33.Bb4!? Bd6 34.Bd6 Kd6 35.Ra5+/-) 33...gf4= 34.Bb4 Bd6 35.Bd6 Kd6 36.ef4 Rg8 37.Rg1 Rg3 38.Kc2 (38.Ke2 Bd7=+) 38...c5-/+ 39.Rd1 (39.dc5!? Kc5 40.Be2-/+) 39...Rg2-+ 40.Kc3 cd4 (better 40...Rg3!? 41.Rd3 Rd3 42.Bd3 Kc6-+) 41.Rd4 Kc6 42.Rd8 Bd7 43.Bf1? (43.Bb3 Rg3 44.Kc4 e5 45.Ba4 Kb6 46.Rd7 ef4-/+) 43...Rg3?? (better 43...Rf2 44.Bb5 Kb5 45.Rd7 Rf3 46.Kd2 Kb6 47.Rd6 Kc7 48.Re6 Rh3-+) 44.Kd4=+ Rf3?? (better 44...Rb3 45.Bg2 Kd6 46.Bb7 Rb6-/+) 45.Ke5 (better 45.Bg2 Kb6 46.Bf3+- (46.Rd7?! Rf4 47.Ke3 Rh4+-)) 45...Re3 (better 45...Rf1 46.Rh8 Re1 47.Kf6 Re4-+) 46.Kf6= Kb6?? (better 46...e5 47.fe5 f4=) 47.Bg2 (47.Bg2 Kc7 48.Ra8-+) 1-0. BeepBeepImAJeep (2775) - Mayjin (2175), lichess.org, 2016.

9.Qc2 0-0 A) 10.Be2 dc4 (10...e5 11.cd5 Nd5 12.Nc3 Nb4 13.Qb1 Qe7 14.Nf3 Nb6) 11.Bc4 Nb6 12.Nf3 Nc4 13.Qc4 b6 14.Nd4 Ng4; B) 10.Bb2 e5 (10...Qe7 11.Nf3 e5 12.Nc3 d4 13.Na4 Ba3 14.Nh4 Bb2) 11.Nf3 Re8 12.Nc3 d4 13.Ne4 Ne4 14.Qe4 Nc5; C) 10.Nf3=+ Qe7 (10...c6 11.Nc3 Nc5 12.Be2 Qc7 13.d4 Nce4 14.c5 Be7) 11.Nc3 Nb6 12.cd5 Nbd5 13.Bc4 Nb4 14.Qb1 b6.

9.Qc2 c5 10.bc6 (10.Nf3 0-0 (10...b6 11.Nc3 0-0 12.Bb2 Bb7 13.cd5 ed5 14.Be2 Qe7) 11.Bd3 Qc7 12.Nc3 b6 13.cd5 ed5 14.0-0 c4; 10.Be2 0-0 (10...b6 11.Nf3 0-0 12.0-0 Bb7 13.cd5 ed5 14.Nc3 Qe7) 11.Nf3 b6 12.Nc3 Bb7 13.cd5 ed5 14.0-0 Qe7) 10...bc6 11.Be2 (11.cd5 cd5 12.Qc6 Be7 13.Nf3 0-0 14.Bd4 Qa5) 11...e5 (11...0-0 12.Nf3=+ (12.cd5 cd5 13.Nf3 Bb7 14.0-0 Qa5) 12...Ba6 13.Bf6 Qf6 14.cd5 Be2) 12.Nf3 (12.cd5 cd5 13.Nf3 0-0 14.0-0 e4) 12...0-0 13.d4 (13.cd5 cd5 14.0-0 e4) 13...e4 14.Nfd2 Qa5 (14...Bb7 15.0-0=) 15.Bb2= Ba6 16.0-0 Qc7 17.g3 Nb6 18.Nc3 Nc4 19.Bc4 Bc4 20.Nc4 dc4 21.Ne4 Ne4 22.Qe4 Qb7 23.Bc3 Rb8 24.Kg2 h6 (24...Qd7 25.Ra1 f5 26.Qc2+=) 25.Ra1+= Be7 26.Be1 Qd7 27.Ra5 Bf8 (27...Rb5 28.Ra8 Bf8 29.Qe8 Qe8 30.Re8=) 28.Qc2+= Qb7 29.Qc4 Qb1 30.Bd2 (30.Bc3 Qe4 31.Kh3 Qf3+=) 30...Rb2 31.Bc1 Qe4 32.Kg1 Rc2 33.Qf1 c5 34.Ra4 h5 35.h4 (35.Rc4 Rc4 36.Qc4 h4=) 35...Qg4= 36.Ba3 Rd2 37.Ra8 Rd1 38.Bc5 Rf1 39.Kf1 g5 40.Bf8 Kh7 41.hg5 h4 42.gh4 Qd1 43.Kg2 Qg4 44.Kh2 Qh4 45.Kg1 Qg4 46.Kf1 Qd1 47.Kg2 Qg4 48.Kf1 Qd1 49.Kg2 Qg4 50.Kf1 Qd1 ½–½. Luzuriaga,Norberto Horacio (2335) – Daatselaar,Jan Bart (2175), corr ICCF WSTT/3/06/Final, 2009.

9.Qc2 c6 A) 10.cd5 cd5 11.Be2 0-0 12.Nf3 e5 13.0-0 e4 14.Nd4 Nc5; B) 10.Be2 Qc7 (10...0-0 11.Nf3 cb5 12.cb5 Qa5 13.Bb2 Nc5 14.0-0 Bd7) 11.cd5 ed5 12.Nf3 0-0 13.0-0 Re8 14.Bb2 c5; C) 10.Nf3 0-0 (10...Qc7 11.Nc3 0-0 12.Bb2 h6 13.Be2 Nb6 14.bc6 bc6) 11.Nc3 Qc7 12.Bb2 Re8 13.Be2 Nb6 14.bc6 bc6.

9.Qc2 Qe7 A) 10.Bb2 e5 (10...Nb6 11.Bf6 gf6 12.Nf3 0-0 13.cd5 Nd5 14.Nc3 Nc3) 11.Nc3 d4 12.Nd5 Nd5 13.cd5 0-0 14.Bd3 Nc5; B) 10.cd5 ed5 11.Nf3 0-0 12.Bd3 g6 13.0-0 Nc5 14.Bf6 Qf6; C) 10.Nf3 0-0 (10...g6 11.Nc3 0-0 12.d4 dc4 13.Bc4 e5 14.0-0 e4) 11.Nc3 Nb6 12.cd5 ed5 13.Bd3 Bd7 14.0-0 Ra8.

9.Qc2 h6 A) 10.Nc3 0-0 (10...c5 11.Nf3 0-0 12.Bb2 Qe7 13.Be2 dc4 14.0-0 Nb6) 11.Nf3 Re8 12.Be2 dc4 13.Bc4 Nb6 14.Bb3 e5; B) 10.Bb2 0-0 (10...Qe7 11.Nf3 0-0 12.Nc3 Nb6 13.cd5 Nbd5 14.Bc4 Nb4) 11.Nf3 Qe7 12.Nc3 Nb6 13.cd5 Nbd5 14.Bc4 Nb4; C) 10.Nf3 0-0 (10...Qe7 11.Nc3 0-0 12.d4 b6 13.Bb2 Bb7 14.Bd3 dc4) 11.Nc3 Nb6 12.cd5 ed5 13.Bd3 Nbd7 14.Na4 Re8.

9.Nc3 A) 9...0-0 10.Nf3 (10.Qc2 Nb6 11.cd5 ed5 12.Nf3 Re8 13.Bd3 Nbd7 14.0-0 Nc5) 10...c5 (10...h6 11.d4 dc4 12.Bc4 e5 13.de5 Ne5 14.Ne5 Be5) 11.Bb2 Qc7 12.Qb3 Nb6 13.d3 Bd7 14.Be2 Ra8; B) 9...h6 B1) 10.d4 c5 (10...b6 11.Nf3 Bb7 12.Bd3 dc4 13.Bc4 0-0 14.0-0 Qe7) 11.bc6 bc6 12.c5 Bc7 13.Nf3 0-0 14.Be2 Bb7; B2) 10.Qc2 0-0 (10...Nb6 11.Nd5 Nbd5 12.cd5 ed5 13.Bd3 0-0 14.Ne2 Ng4) 11.Nf3 Nb6 12.cd5 Nbd5 13.Bc4 Bd7 14.0-0 Nb6; B3) 10.Nf3 Nb6 (10...0-0 11.d4 dc4 12.Bc4 e5 13.de5 Ne5 14.Ne5 Be5) 11.cd5 ed5 12.Bd3 0-0 13.Qc2 Bd7 14.0-0 Qe7; C) 9...Nb6 10.cd5 ed5 (10...Nbd5 11.Nf3 0-0 12.Bc4 Bd7 13.0-0 Qe7 14.Qb3 c6) 11.Bd3 0-0 12.Nf3 Bg4 13.h3 Bh5 14.Qc2 Re8; D) 9...c5 D1) 10.Na4 0-0 (10...b6 11.f4 e5 12.fe5 Ne5 13.Be5 Be5 14.Nf3 Bc7) 11.Nf3 b6 12.Qc2 Bb7 13.Bd3 Qc7 14.cd5 ed5; D2) 10.bc6 bc6 11.cd5 ed5 12.Nf3 0-0 13.Be2 Qb6 14.Na4 Qa5; D3) 10.Nf3 0-0 (10...Nb6 11.d3 Qc7 12.Be2 0-0 13.0-0 d4 14.Ne4 Ne4) 11.Bb2 Nb6 12.d3 e5 13.Nd5 Nbd5 14.cd5 Nd5.

9.cd5 A) 9...Nc5 10.b6 (10.de6 Be6 11.Nc3 0-0 12.Nf3 Qe7 13.Nd4 Ra8 14.Bb2 g6; 10.Bf6 Qf6 11.Nc3 ed5 12.Nd5 Qb2 13.Bc4 Be6 14.Ne2 c6) 10...ed5 (10...cb6 11.de6 Be6 12.Bb5 Bd7 13.Bd7 Ncd7 14.Nf3 0-0) 11.bc7 Bc7 12.Bd4 Bd6 13.Bb5 Bd7 14.Nc3 0-0; B) 9...ed5 B1) 10.Bd4 Nc5 (10...0-0 11.Nc3 Nc5 12.Nf3 Bf5 13.Be2 Re8 14.0-0 c6) 11.Nf3 0-0 12.Nc3 Bf5 13.Bf6 Qf6 14.Nd5 Qb2; B2) 10.Qc2 0-0 (10...g6 11.Bd4 0-0 12.Nf3 Qe7 13.Be2 Nc5 14.Nc3 c6) 11.Nf3 Nc5 12.Bd4 Ne6 13.Bd3 Nd4 14.Nd4 Qe7; B3) 10.Nf3 Nc5 (10...0-0 11.Bd4 Re8 12.Nc3 Nc5 13.Qc2 Nce4 14.Bd3 Bf5) 11.Bd4 0-0 12.Nc3 Be6 13.Ng5 Qe7 14.Qb1 g6.

9.Nf3 dc4 10.Bc4 0-0 11.0-0 Nb6 12.Be2 Bd7 13.d4 Qa8 (13...Qe7 14.Ne5=) 14.Nbd2 Qa2 15.Bc3 Ra8 16.Qc1 (16.e4 Na4 17.Ba1 Bb4=) 16...Ba3 (16...Nfd5 17.Ba1=+) 17.Qb1= Qb1 18.Rb1 Nfd5 19.Ba1 Bb4 20.Nc4 Bb5?? (better 20...Na4 21.Kf1 Bb5=+) 21.Nb6+- Ra1?? (21...Nb6 22.Bb5 Bd6+-) 22.Ra1 Be2 23.Nd5 (better 23.Ra8 Bf8 24.Nd7+-) 23...ed5 24.Ra8 Bf8 25.Ne5 Bb5 26.Rb8 (26.Ra7 f6 27.Rb7 Ba6+-) 26...f6 (26...b6!? 27.Rc8 f6+/-) 27.Rb7+- Ba6 28.Ra7 fe5 29.Ra6 e4? (better 29...ed4 30.ed4 Kf7+-) 30.Ra5 c6 31.Ra6 c5 (31...Kf7 32.Rc6 Ke7 33.Rc8+-) 32.dc5 Bc5 33.Ra5 (33.Ra5 Bb4 34.Rd5+-) 1-0. BeepBeepImAJeep (2740) - QingsGambit (2505), lichess.org, 2020.

9.Nf3 dc4 10.Bc4 Nb6 11.Be2 Bd7 12.0-0 e5 (better 12...0-0!?=) 13.Be5+/- Be5 14.Ne5 Be6 15.d4 Kf8 (15...0-0!?+/-) 16.Nd2 h5 17.Qc2 h4 18.h3 Nfd5 19.Rc1 Na8 (19...Kg8 20.Bf3+-) 20.Bg4 Bg4 21.Ng4 g6 22.Nf3 Kg7 23.e4 Nf4 24.d5 f6 25.Qd2 g5 26.Nd4 Kg6 27.Qb2 (27.Qc2 Kf7+-) 27...Nb6? (27...Nd3 28.Qc2 Nc1 29.e5 Kf7 30.e6 Kf8+-) 28.Nf5 (better 28.Qc2 Rf8 29.Kh2+-) 28...Re8?? (better 28...Nd3 29.Qc2 Nc1 30.Qc1 Kf7+/-) 29.Qc2 (29.Rc7 Nbd5 30.Rg7 Kh5 31.ed5 Nh3 32.gh3 Qd6 33.Qb1 Re7 34.Nf6 Qf6 35.Qd1 Re2 36.Qe2 g4 37.Qg4) 29...Na8 30.f3 (30.g3 hg3 31.fg3 Nh3 32.Kg2 Rh8+-) 30...Qd7 31.Kh2 Qb5 32.Qc3 (better 32.d6 c6 33.e5+-) 32...Qe2?? (better 32...Rf8+-) 33.Qf6 Kh7 34.Qg7 1-0. BeepBeepImAJeep (2670) - BearBully (2370), lichess.org, 2016.

9.Nf3 c5 A) 10.Qc2 0-0 (10...b6 11.cd5 ed5 12.Bd3 0-0 13.0-0 Bb7 14.Bf6 Nf6) 11.Bd3 b6 12.cd5 ed5 13.Nc3 c4 14.Be2 Qc7; B) 10.Bb2 0-0 (10...Nb6 11.Na3 0-0 12.Bd3 Bd7 13.Ne5 Be5 14.Be5 dc4) 11.Be2 Qc7 12.cd5 ed5 13.0-0 b6 14.Nc3 Bb7; C) 10.Qb3 0-0 (10...Nb6 11.Na3 0-0 12.Bd3 Ne4 13.h4 Bd7 14.Be5 Qc7) 11.Bb2 b6 12.Nc3 Bb7 13.Be2 dc4 14.Qc4 Ne5.

9.Nf3 Qe7 A) 10.Qc2 0-0 (10...h6 11.Nc3 0-0 12.d4 b6 13.Bb2 Bb7 14.Bd3 dc4) 11.Nc3 Nb6 12.cd5 Nbd5 13.Bc4 Nb4 14.Qb1 b6; B) 10.Nc3 0-0 (10...Nb6 11.cd5 ed5 12.Bd3 0-0 13.0-0 Bg4 14.Qc2 Bf3) 11.Qc2 Nb6 12.cd5 ed5 13.Bd3 Bg4 14.Nd4 Ra8; C) 10.d4 dc4 (10...Bb4 11.Nc3 Ne4 12.Qc2 Ba5 13.Nd2 Qa3 14.Bb2 Qb2) 11.Bc4 0-0 12.0-0 e5 13.de5 Ne5 14.Nbd2 Nc4.

9.Nf3 h6 10.d4 (10.cd5 ed5 11.Bd4 0-0 12.Be2 c5 13.bc6 bc6 14.Nc3 Qe7) 10...dc4 (10...0-0 11.c5 Be7 12.Nc3 Ne4 13.Bd3 b6 14.c6 Ndf6) 11.Bc4 0-0 12.0-0 Nb6 13.Bd3 Bd7 14.e4 Nh5.

9.Bf6 A) 9...Nf6 A1) 10.Nf3 Ne4 (10...0-0 11.Nc3 Bd7 12.cd5 ed5 13.Bd3 Qa8 14.0-0 Qa3) 11.Qc2 Qf6 12.Nc3 Nc3 13.dc3 Qg6 14.Qg6 hg6; A2) 10.Bd3 0-0 (10...Qe7 11.Nc3 0-0 12.cd5 Nd5 13.Nf3 Bd7 14.0-0 Nc3) 11.Nc3 Bd7 12.Nf3 Qa8 13.0-0 Qa3 14.Qa1 Ra8; A3) 10.Nc3 0-0 (10...Qe7 11.Nf3 0-0 12.Qa4 c6 13.bc6 bc6 14.Qc6 Bb7) 11.Nf3 Qe7 12.Qa4 Ne4 13.cd5 Nc3 14.dc3 Qf6; B) 9...Qf6 B1) 10.cd5 ed5 11.Nc3 Nb6 12.Bd3 0-0 13.Qf3 Qf3 14.Nf3 Bg4; B2) 10.Nf3 Nb6 (10...0-0 11.Nc3 Nb6 12.cd5 ed5 13.Bd3 Bg4 14.0-0 Ra8) 11.cd5 Nd5 12.e4 Nb4 13.d4 Qg6 14.Nc3 0-0; B3) 10.Nc3 Nb6 (10...dc4 11.Bc4 Qg6 12.Nf3 Nb6 13.Bb3 0-0 14.0-0 Bd7) 11.cd5 ed5 12.Bd3 0-0 13.Qf3 Qe5 14.Nge2 h5.

10.Qc2 Qe7 (10...c5 11.Be2 b6 12.Nc3 Bb7 13.cd5 ed5 14.0-0 Qe7) 11.Nc3 Nb6 12.cd5 Nbd5 13.Bc4 Nb4 14.Qb1 b6.

10.Nc3 c5 (10...Nb6 11.cd5 ed5 12.Bd3 Nbd7 13.Bc2 Re8 14.0-0 Nb6) 11.Bb2 Qe7 12.Be2 dc4 13.Bc4 Nb6 14.Be2 e5.

10.d4 c5 (10...b6 11.Nc3 Bb7 12.Bd3 dc4 13.Bc4 Ne4 14.d5 ed5) 11.bc6 bc6 12.c5 Bc7 13.Bd3 Qe7 14.Nbd2 e5.

10.Be2 dc4 11.Bc4 Nb6 12.Be2 Re8 13.0-0 (13.d4 Bd7=) 13...e5=+ 14.Nc3 h6 (14...e4 15.Ne1=+) 15.d4= ed4 16.Nd4 Bd7 17.h3 Qb8 (17...Qe7 18.Qd3=) 18.Bb2 (18.Qc2 Be5+=) 18...Bb4 (18...Be5 19.Nf3=) 19.Qb3 Bc3 20.Bc3 Nfd5 21.Bb2 Qd8 22.Rd1 Qe7 23.Bf3 Qc5 24.Rc1 Qd6 25.Ba3 Qe5 26.Rd1 (26.Rc5 Be6 27.Ne6 fe6+/-) 26...Rd8? (26...Qg5!? 27.h4 Qe5+/-) 27.Ne2 (27.Bb2 Qe8 28.Bd5 Nd5 29.Qd5 Bg4 30.Qd8 Qd8 31.hg4 c5 32.bc6 bc6+-) 27...Ne3 (27...Nf6!?+/-) 28.Qe3 Qe3 29.fe3 Ra8 30.Bc5 Bb5 31.Nd4 Bd7 (31...Na4 32.Nb5 Nc5 33.Nc7+-) 32.Bb7 Ra2 (32...Rb8 33.Bf3+-) 33.Bc6 (better 33.Bb6!? cb6 34.Rb1 b5+-) 33...Bc6 34.Nc6 Rc2 (34...Na8 35.Rd8 Kh7 36.Bd4+-) 35.Ne7 Kh7 36.Bb6 cb6 37.Nd5 (37.Rb1!? Re2+-) 37...Rb2 38.Rd4 b5 39.Rb4 Rb4 40.Nb4 Kg6 41.Kf2 Kf5 42.Ke2 Ke4 43.Nd3 f5 44.Nb2 (44.g4 g6+-) 44...h5 45.g3 g5 46.Nd1 (46.Nd3 Kd5+-) 46...b4 47.Nf2 Kd5 48.Kd3 Kc5 49.g4 (49.e4 f4 50.g4 h4+-) 49...fg4 50.hg4 hg4 51.Ng4 Kb5 52.Kc2 Kc4 53.e4 Kd4 54.e5 Kd5 (54...Kc5 55.Kb3+-) 55.Kb3 1-0. BeepBeepImAJeep (2585) - AfonsoMeister (2325), lichess.org, 2016.

10.Be2 dc4 11.Bc4 e5 12.0-0 Nb6 13.Be2 Bg4 (better 13...e4 14.Nd4 Qe7=+) 14.Ne5+= Be2 15.Qe2 Re8 16.d4 Qe7 17.Nd2 Nfd5 18.Ndf3 f6 19.Nc4 Bb4 20.Nb6 Nb6 21.Qd3 Kh8 22.h3 Bd6 23.Rc1 Nd5 24.Bb2 Nb4 25.Qb3 Qe4 (25...Ra8 26.Bc3+/-) 26.Nd2 (26.Ba3 Nd5+-) 26...Qg6? (26...Qf5 27.Nc4 Be7 28.Bc3+/-) 27.Nc4 (27.Ba3!? Nd3 28.Rd1 Ba3 29.Qa3 Qf5+-) 27...Nd3+/- 28.Rc3 (28.Rd1 Nb2 29.Qb2 f5+/-) 28...Nb2? (better 28...Ne1!? 29.Kf1 Ng2 30.Nd6 cd6+=) 29.Nd6+- Qb1?? (better 29...cd6 30.Qb2 Qf7+-) 30.Kh2 cd6 31.Rc2 (31.Qe6 Qg6 (31...Re6?? 32.Rc8 Re8 33.Re8) 32.Rc8 h5 33.Re8 Kh7+-) 31...Qf1?? (31...d5+-) 32.Qb2 (32.Qe6 Qb5 33.Rc8+-) 32...h6 33.Qb3 (33.Rc7 Rb8+-) 33...Rf8 (33...Qd1 34.Qa2+-) 34.Qc4 (better 34.Qd5!? Rb8+-) 34...f5?? (better 34...Qd1+-) 35.Qf1 1-0. BeepBeepImAJeep (2685) - GianFresco (2410), lichess.org, 2015.

10.Be2 c5 11.0-0 b6 12.d4 Bb7 13.Nbd2 cd4 14.Nd4 Nc5 15.cd5 (15.Nc6 Bc6 16.bc6 Re8=) 15...Nd5= 16.Bf3 Qc7 17.h3 Nf6 (17...Rd8 18.Qb1=+) 18.Nc4 Bf3 (18...Rd8 19.Bb7 Qb7 20.Qe2+=) 19.Qf3 Rd8? (better 19...Nfe4=) 20.Nc6+- (20.Nd6?! Rd6 21.Nc6 Nfd7+=) 20...Rd7 21.Bf6 (21.Nd6?! Qd6 22.Bf6 gf6 23.Qf6 Ne4+-) 21...gf6 22.Qf6 (22.Ra1 f5+-) 22...Be7 (22...Ne4 23.Qh4 f5 24.Ra1+-) 23.Ne7 Re7 24.Ne5 (24.Nb6!? Ne4 25.Qh4 f5+-) 24...Ne4 25.Qf4 f6? (better 25...f5+-) 26.Nc6 (worse 26.Qe4 Qe5 27.Qe5 fe5+-) 26...Qf4 27.Ne7 (27.ef4?! Rd7+/-) 27...Kf7 28.ef4 Ke7 29.Rc1 Kd6 (29...Nc5 30.Ra1+-) 30.Rc6 Kd5 31.Rb6 Nc3 (31...Nd6 32.Rb8+-) 32.Rb8 Kc5 (32...Ne4 33.Rc8+-) 33.b6 (better 33.Rc8 Kb5 34.Rc3+-) 33...Nd5 (33...Ne2 34.Kf1 Nf4+-) 34.b7 (34.b7 Kc6 35.f5+-) 1-0. BeepBeepImAJeep (2675) - GianFresco (2415), lichess.org, 2015.

9.Nf3 0-0 10.cd5 ed5 11.Be2 g6 12.0-0 Nc5 13.d4 Nce4 14.Ne5 Be6 15.Nc3 (15.Bb2 Re8=) 15...Bb4 16.Qb3 Qe7 17.Rc1 Ra8 18.Bb2 Nc3 19.Bc3 Bd6 20.Bb2 Kg7 21.Bd3 Nd7 22.Nf3 Nb6 23.e4 Bf4 24.Re1 White plans e5 24...Qd8 25.e5 Nc4 26.Bc3 Qe7 27.Bb4 Qd7 28.h4 Kg8 (28...Qb5?? 29.Bf8 Rf8 30.Qb5+-) 29.Bc3 (29.g3 Bh6=) 29...Ra3=+ 30.Qb4 (30.Qc2 Qb5 31.Rb1 Qa6=+) 30...Bh6-/+ 31.Bc4 Bf8 32.Qb2 dc4 33.Nd2 Bd5 34.f3 Be7 35.h5 gh5 36.Rf1 Qe6 37.Rc1 (37.Ne4!? Rb3 38.Qc2-+) 37...h4-+ 38.Bb4 (38.Qc2 Qg6 39.Kh1 Bg5-+) 38...Bb4 39.Qb4 Rd3 40.Ne4 (40.Nf1-+) 40...Be4 41.fe4 (41.Qc4 Qc4 42.Rc4 Bd5 43.Rc7 Rd4-+) 41...h3 42.Qb2 (42.Ra1 Kg7 43.Qe1-+) 42...Rg3 43.Rc2 Qg4 44.e6 fe6 45.d5 c3 46.Qa2 Rg2 47.Rg2 Qg2 (47...Qg2 48.Qg2 hg2 49.de6 c2-+) 0–1. DEFFM – GuestBJGF, freechess.org, 2019.

9.Nf3 0-0 10.Be2 dc4 11.Bc4 Nb6 12.Be2 Nfd5 13.0-0 Bf6 (13...Bd6 14.Be5=) 14.d4 Ne7 15.Nbd2 c6 (15...Ned5 16.Ne4+=) 16.Ne4 Ng6 (16...Nbd5 17.Nf6 Nf6 18.bc6 Nc6 19.Qc2+=) 17.Nf6 Qf6 18.bc6 bc6 19.Qb3 Nd5 20.Rc1 Bd7 21.Ne5 Ne5 22.de5 Qd8 23.Bd4 Qc7 24.Qa3 Rb8 25.g3 Qb7 26.Bc5 (26.Qd6 Qc8+/-) 26...h6 (better 26...Ra8!? 27.Qd3 Qb2=) 27.Bd6 Ra8 28.Qd3 Ra2 29.Rb1 Rb2 30.Rb2 Qb2 31.Bf3 (31.Bf1 Bc8+=) 31...Qc1 (better 31...c5!?=) 32.Kg2+/- Bc8 (better 32...c5 33.Qa6 Qb1+=) 33.Qd4 (better 33.e4!? Nc3 34.Bb4+-) 33...Ba6= 34.g4?? (better 34.Qd1!? Qd1 35.Bd1=) 34...Qf1 (34...Nc3 35.Bd1 (35.Bc6?? Qf1 36.Kg3 Ne2 37.Kh4 Qf2 38.Kh3 Ng1) 35...Nd1 36.Ba3-+) 35.Kg3 Qg1 36.Bg2 Bf1 37.Qe4 Nc3 38.Qf3 Ne2 (better 38...Bg2 39.Qg2 Ne4 40.Kh3 Nf2 41.Kg3 Ne4 42.Kf3 Ng5 43.Kg3 Qe3 44.Kh4 Nf3 45.Kh3 Ng1 46.Kh4 g5 47.Kh5 Qd3 48.Qg1 Qg6) 39.Kh3=+ Bg2 40.Qg2 Qg2 (40...Qc1!?=+) 41.Kg2= Nc3 42.Kf3 Nb5 43.Ke4 f6 44.Bc5 Kf7 45.ef6 Kf6 46.f4 Kf7 (46...Nc3 47.Kd3 Nb5 48.Kc4+=) 47.h4 g6 48.h5 (48.Ke5!?+/-) 48...gh5= 49.gh5 Nc7 50.Kf3 Nd5 51.e4 (better 51.Bd4!?=) 51...Nf6-/+ 52.Be3 Nh5 53.f5 ef5 54.ef5 Kf6 55.Bh6 Kf5 56.Be3 Nf6 57.Ke2 Nd5 58.Bd4 Ne7 59.Kd3 Ke6 60.Kc4 Nf5 61.Bc5 Kd7 62.Bd4 Nd6 63.Kb4 Nb7 64.Bc5 Nd8 65.Kc4 Ne6 66.Kb4 Kc7 67.Be3 Nf4 (better 67...Kd6-/+) 68.Kc3?? (better 68.Bf4 Kd7 69.Kc5=) 68...Nd5-+ 69.Kd4 Kd6 (better 69...Ne3 70.Kc5 Nf5-+) 70.Bd2 (70.Bf2=+) 70...Ne3 (better 70...c5!? 71.Ke4 Nf6 72.Kf5 Nd7-/+) 71.Ke3 c5 72.Kd3 Kd5 73.Kc3 c4 74.Be3 Ke4 75.Kc4 ½-½. BeepBeepImAJeep (2750) - caissaisabelle (2740), lichess.org, 2020.

9.Nf3 0-0 10.Be2 c5 11.0-0 Nb6 12.cd5 Nbd5 13.d4 cd4 14.Nd4 (14.Bd4 Qd6+=) 14...Bd7 15.Nd2 Bd6 16.Nc4 Bb8 17.Nf3 (17.f4 Ba7=) 17...Qc8 (17...Bb5 18.Qb3 Ba6 19.Bd4=+) 18.Be5 (18.Qb3 Qc5 19.Nce5 Qe7+=) 18...h6 (18...Bb5 19.Qd4-/+) 19.Bb8 (19.Qb3 Qc5 20.Rb1 Be5 21.Nfe5 b6+=) 19...Qb8 (19...Nc3 20.Nb6 Qd8=+ (worse 20...Qb8 21.Nd7 Nd7 22.Qd2=)) 20.Qb3+= Ne4 21.Nce5 Be8 (21...Rd8 22.Rc1+=) 22.Bd3 (22.Bc4 Nb6+/-) 22...Nc5+= 23.Qb1 Nd3 24.Qd3 f6 25.Nc4 (25.Ng6 Rf7=) 25...Qd8 (better 25...Bb5!? 26.Rb1 Ba6-/+) 26.Qb3 Qd7 27.Rd1 (27.Rb1 Bh5=) 27...Kh8 (27...Qb5 28.Qd3=+) 28.Nb6 (better 28.Qa3!? Kg8 29.e4 Qb5 30.Nd6=) 28...Qb5=+ 29.Qb5 Bb5 30.Nd5 ed5 31.Rd5 Ra8 32.h4 Bc6 33.Rd6 Bf3 34.gf3 Ra4 35.Rb6 Rh4 36.Rb7 Rh5 37.Kg2 Kh7 38.f4 Rc5 39.Kg3 Rc2 40.Kf3 Rc5 41.Rb6 (41.e4 h5=) 41...Rh5 (41...f5 42.Kg3=) 42.Kg4 Rh2 43.Kg3 Rh1 44.Rb5 Rg1 45.Kf3 Rg6 (45...Kg6 46.e4=) 46.e4+= h5? (better 46...Rg1!?+=) 47.Rh5+- Rh6? (better 47...Kg8+-) 48.Rh6 (48.Kg4 f5 49.Rf5 Re6+-) 48...Kh6? (48...gh6 49.Kg4 Kg7+-) 49.Kg4 Kg6 50.f3 White prepares the advance f5 50...Kf7 51.f5 Ke7 52.Kh5 Kf7 53.f4 Kg8 54.Kg6 Kf8 55.e5 fe5 56.fe5 Kg8 57.e6 Kf8 58.Kh7 g6 59.fg6 (59.fg6 Ke7 60.g7 Ke6 61.g8Q Ke5 62.Qg5 Ke4 63.Qf6 Kd5 64.Kg6 Ke4 65.Qe6 Kd3 66.Kf5 Kc3 67.Ke4 Kc2 68.Qc6 Kb1 69.Kd3 Kb2 70.Qb5 Ka3 71.Kc3 Ka2 72.Qb2) 1-0. BeepBeepImAJeep (2730) - HoPPaa (2325), lichess.org, 2020.

9.c3 Bd6 10.c4 0-0 11.Nc3 c6 12.Be2 dc4 13.bc6 bc6 14.Bc4 Nb6 (14...e5 15.Qc2=) 15.Be2 (15.Bd3 Nbd5=) 15...Nbd5 16.Qa4 (16.0-0 Re8=) 16...Bb7 (16...c5 17.0-0=) 17.0-0 (17.e4 Nc3 18.Bc3 Bf4=) 17...c5 (17...Qd7 18.Nd5 cd5 19.Qh4=) 18.Rb1 Nc3 (18...Qe7 19.Nb5 Ra8 20.Qc4=) 19.Bc3 Bd5 20.d3 Bf3 (20...Qe7 21.Qc2 e5 22.e4=) 21.Bf3+= (21.gf3?! Nd5 22.Ba1 Nb4=) 21...Bb8 22.Qc4 Qd6 23.g3 Nd5 24.Ba1 (24.Bb2 Nb4 25.d4 Ba7+/–) 24...Nb4 25.d4 Ba7 26.dc5 Bc5 27.Rd1 (27.Rc1 Qd2+=) 27...Qe7 28.Bc3 Nc2 (28...Re8!?+=) 29.Bg7!+/– Kg7 30.Qc2 Ba7 (30...Rc8 31.Be4+/–) 31.Qa4 (31.Qe4 Rd8+-) 31...Qf6 32.Kg2 Bc5 33.Rc1 Bb6 34.Rc4 Rd8? 35.Qb4 e5 36.Rc6 Qf5 37.Rb6 h5 38.h4 Rh8 39.Be4 (39...Qg4 40.Kh2+-; better is 39.Qe7!? Rc8+-) 1–0. Bennett,Hilton Petrie – Celis,Solomon B III (2200), Asia–chT Genting Highlands, 1998.

9.c4 0-0 10.Qb3 Bd6 11.d4 dc4 12.Bc4 =.

9.c4 0-0 10.Qb3 Qe7 11.Be2 b6 (11...Bd6 12.0-0=+) 12.0-0= Bb7 13.Nc3 (13.d4 Ra8 14.Bb2 Bd6=) 13...dc4 (13...Ra8 14.d4=) 14.Qc4 Bf3 (14...Qd6 15.d4=) 15.gf3 (15.Bf3 Ne5 16.Qf4 Bd6=) 15...Ne5 16.Qd4 Bd6 (16...Nfd7 17.f4 c5 18.Qe4=) 17.f4 Ng6 18.Qc4 Ra8 (18...Qd7 19.d3=) 19.d4 (19.Bf3 Ra3=) 19...Ra5 20.Bb2 Ba3 21.Ba3 Ra3 22.Bf3 Ra7 (22...Qd6 23.Rc1=) 23.Rc1 h6 24.Bg2 Qa3 25.Rd1 Ne7 26.Re1 Qb2= 27.Rb1 Qc2 28.Qb3 Qg6 29.Rc1 Nf5 30.Qc2 Ra5 31.h3 Ra7 32.Kh2 Qh5 33.Rb1 Ra3 34.Qc1 Ra5 35.Qf1 Nd6 36.Rb2 Qh4 37.Bf3 Nf5 38.Qc4 Ra7 39.Qe2 Ra1 40.Rd2 Ra7 41.Ra2 Ra2 42.Qa2 Ne8 43.Ne4 Qd8 44.Qd2 Ned6= 45.Nc3 Kh8 46.Bg2 Ne8 47.Qa2+= Ned6 48.Qa8 Qa8 49.Ba8 Kh7 50.Kg2 Kg6 51.Kf1 Kh5 52.d5 ed5 53.Bd5 ½–½. Nemec,Zdenek – Zednik,Martin, MCR EP II–1, 2000.

9.c4 0-0 10.Bc3 Bd6 =+.

9.c4 0-0 10.Be2 dc4 11.Bc4 Nb6 (11...Qe7 12.0-0=+) 12.Be2= Bd7 13.0-0 (13.Bd4 c5 14.bc6 bc6=) 13...Qe8 (13...c6 14.Be5=) 14.Qb3 (14.Bf6 gf6 15.Qc2 c5 16.bc6 Bc6+=) 14...Qe7 (14...Bb5 15.Bb5 Qb5 16.Bf6 gf6 17.Qb2=+) 15.Nc3 (15.Bf6 gf6 16.Rc1 Bd6+=) 15...Nbd5 (15...Ra8 16.Ne5=) 16.Nd5 Nd5 17.Qb2 (17.Be5 f6 18.Bg3 Bd6+=) 17...f6 18.Bc4 (18.e4 Nf4 19.Bc4 Bd6=) 18...c5 (18...Ra8 19.Qc2=) 19.Rc1 (19.bc6 bc6 20.Rb1 c5=) 19...Qe8 (19...Nc7!?=+) 20.d4= b6 21.e4 (21.Qe2 Qh5+=) 21...Nf4= 22.g3 Qh5 (better 22...Qg6 23.Qb3 Ra8=) 23.Be2?? (better 23.Qb3 Qg4 24.Qe3 Nh3 25.Kg2=) 23...Ne2?? (better 23...Ba3! 24.Qa3 Ne2 25.Kg2 Nc1 26.Qc1 e5 (26...Bb5?! 27.Qb1 Be2 28.Ng1-+) 27.Qc4 Kh8-+) 24.Qe2-/+ e5 (24...Ra8 25.dc5 Bc5 26.Bd4 Bd4 27.Nd4 Qe2 28.Ne2 Bb5 29.Nd4-/+) 25.Kh1? (25.de5 f5 26.Qb2 Qf3 27.e6+-) 25...Bb5! 26.Qb5 (better 26.Qe3-+) 26...Qf3 27.Kg1 Qe4 (27...ed4 28.Bd4 Bd2 29.Qc4 Kh8 30.Bc5 bc5 31.Qc5-+) 28.de5 (28.Qc4 Rf7 29.de5 Qc4 30.Rc4 b5-+) 28...fe5 29.Qb6 (29.Rf1 Be1-+) 29...Qf3 (better 29...Be1!? 30.Qc5 Bf2 31.Qf2 Rf2 32.Kf2 Qd3-+) 30.Qe6 (30.Rf1 Qd5-/+) 30...Kh8-+ 31.Be5?? (better 31.Qe5 Qf2 32.Kh1-+) 31...Qf2 32.Kh1 Qf3 33.Kg1 Qe3 34.Kh1 (34.Kg2 Qc1 35.Bf4 Qc2 36.Kh3-+) 34...Qc1 35.Kg2 Qf1 1–0. DEFFM – QemonioBaplace, freechess.org, 2016.

9.c4 Nb6 10.cd5 Nbd5 11.Nc3 =+.

9.Be2 0-0 10.0-0 c5 11.c3 Ba5 12.c4 Nb6 (12...dc4 13.Na3=) 13.d3 (13.d4 Nc4 (worse 13...dc4 14.dc5 Qd1 15.Rd1+-) 14.dc5 Bb4=) 13...dc4 (13...Qe7 14.Qc2=) 14.dc4+= Qd1 (14...Qe7 15.Bd3+=) 15.Rd1 Ne4 16.Ne5 f6 17.f3 Ng5 18.h4 Nf7 19.Nf7 Kf7 20.Nc3 (20.Bc3 Bb4+=) 20...Bc3 (20...Ke7 21.Ne4 Bb4 22.g4+=) 21.Bc3 Na4? (better 21...e5+=) 22.Ba5+- b6 (22...e5 23.Ra1 b6 24.Be1+- (24.Ra4?! ba5 25.Ra5 Ke6+-)) 23.Be1 Bb7? (23...Nb2 24.Rd2 Nc4 25.Bc4 Ke7+-) 24.Rd7 (24.Rd7 Kg8 25.Rb7+-) 1–0. GuestCFMD – GuestZJWC, freechess.org, 2018.

9.Be2 0-0 10.0-0 c5 11.c4 Nb6 (11...dc4 12.Bb2=+) 12.cd5 (12.d3 Qe7=) 12...Nbd5 (12...ed5 13.Qc2=) 13.Qc2= Qa5 14.Be5 b6 15.Bd3 h6 (15...Bd7 16.Nc3 Bc3 17.dc3 (17.Bc3?! Nc3 18.Qc3 Ra8=+) 17...Bb5 18.Bb5 Qb5 19.c4+/-) 16.e4+= Ne7 17.Nc3 (17.Qb2 Ne8+=) 17...Ng4 (17...Bd7!?=) 18.Bd6+/- Re8 (18...c4 19.Be7 Be7 20.Bc4+/-) 19.e5 h5 20.Ng5 g6? (better 20...Nf5+/-) 21.Be7 (21.h3 Nh6 22.Nce4 Bd7 23.Nf6 Kg7 24.Ne8 Be8 25.Be7 Ng8+-) 21...Re7 22.Bg6! Ne5 (22...fg6 23.Qg6 Double attack) 23.Bh5 Bc3?? (23...f5 24.f4 Nd7+-) 24.Qh7 (24.Qc3?! Qc3 25.dc3 Kg7+/-) 24...Kf8 25.Qh8 1-0. Lance5500 (2490) - dearprudence (1665), lichess.org, 2016.

9.Be2 0-0 10.0-0 c6 11.c4 dc4 12.Bc4 cb5 13.Bb5 Nc5 (13...Qa5 14.Bd7 Qa1 15.Ba4=) 14.Nc3 Nce4? (better 14...Bd7 15.Bc4 Qa5=) 15.Ne4+- Ne4 16.Qb1 Nd2 17.Nd2 (17.Qb4?! Nf1 18.Bf1 Qd1+-) 17...Qd2? (17...Qa5 18.Rd1 e5+-) 18.Rd1 (18.Rd1 Qd1 19.Qd1+-) 1–0. DEFFM – GuestVRDR, freechess.org, 2018.

9.Be2 0-0 10.0-0= Qe7 11.Ne5=.

9.Be2 0-0 10.0-0= Re8 11.c4 (11.Ne5 Ne5 12.Be5 Nd7=) 11...dc4 12.Bc4 Nb6 (12...Bd6 13.Qc2=) 13.Qc2 h6 (13...Bd6 14.Be5=) 14.Be2+= Bd6 (14...Nfd5 15.Be5 Bd6 16.d4+=) 15.d4 (15.Be5 Ng4 16.Bd6 cd6+=) 15...Nfd5 (15...Nbd5 16.Ne5=) 16.Nbd2 Bd7 (16...Nb4 17.Qb3+=) 17.Ne4 Qe7 18.Nc5 (18.Bb2 Ra8+=) 18...Bc8 (18...Rb8 19.Rc1+=) 19.Rc1 Qf6 (19...Nb4 20.Qb2 N4d5 21.Qa2+=) 20.g3+- Nb4 (better 20...Bf8!?+-) 21.Qb3 N4d5 22.e4 Bf4 (22...Qd8 23.ed5 Nd5 24.Ne5+-) 23.Rd1 (23.gf4 Nf4 24.Qe3 Qg6 25.Kf1 Qg4+-) 23...Ne7 (better 23...Bd6+-) 24.gf4 Ng6 25.f5! ef5 (25...Nf4 26.Kf1 ef5 27.e5+-) 26.e5 Qe7 27.Qe3 (27.Bc3 Nf4 28.Bf1 Be6 29.Ne6 fe6+-) 27...Nd5 28.Qb3 c6?? (28...Nb6 29.Bc3 Nf4+-) 29.bc6+- bc6 30.Bc4 Kh7 (30...Ngf4 31.Rb1+-) 31.Bd5 cd5 32.Qd5 Nf4 (32...Be6 33.Qd6 Qd6 34.ed6+-) 33.Qb3 (33.Qd6 Qd6 34.ed6 Rd8+-) 33...Nh3 (33...Be6 34.Qc2+-) 34.Kf1 Ng5 (34...Nf4 35.Nd2+-) 35.Ng5 Qg5 (35...hg5 36.Qc3+-) 36.Qf7 Rg8 (36...Re7 37.Qb3+-) 37.e6 Qg4 (37...f4 38.d5 Rd8 39.Bb2+-) 38.Rd3 Ba6 (38...Qg5 39.Bc3 f4 40.d5+-) 39.Na6 Qe4 40.Re3 (better 40.Rg3 f4 41.Ra3 f3 42.Qf3 Qe6+-) 40...Qh1 41.Ke2 Qa1 42.Nc7 Qd4 (42...Rb8 43.Qf5 g6 44.Qf7 Kh8 45.e7 Rb2 46.Kf3 Qd1 47.Kg3 Qg4 48.Kg4 h5 49.Kh3 Rb8 50.e8Q Re8 51.Re8) 43.e7 Qc4 (43...Qg4 44.Kf1 Qg6+-) 44.Qc4 Rc8 (44...Rb8 45.Qf7 Rb2 46.Kf3 Rb6 47.e8Q h5 48.Qeg8 Kh6 49.Qfg7) 45.e8Q Re8 46.Ne8 (46.Ne8 Kg6 47.Rg3 Kh7 48.Rg7 Kh8 49.Qg8) 1–0. DEFFM – GuestZJRW, freechess.org, 2018.

9.Be2 Bd6 10.Nd4=.

9.c4 Bb7 10.Be2 (10.Nc3 c5=) 10...Be7 (10...dc4 11.Bc4 Bd6 12.d4=) 11.0-0 (11.cd5 Nd5 12.Nc3 0-0=) 11...0-0 (11...dc4 12.Bc4 Qa8 13.Bc3=) 12.d4 Qa8 (12...c6 13.bc6 Bc6 14.cd5 Nd5 15.Qb3=) 13.Nc3 (13.Nbd2 dc4 14.Bc4 Bb4=) 13...Qa3 (13...dc4 14.Bc4 Rc8 15.Be2=) 14.Qc2 (14.cd5 ed5 15.Qc2 Qd6+=) 14...Bd6 (14...dc4 15.Nd2=) 15.Bb2+= Qa8 (15...Qb4 16.cd5 Nd5 17.Ng5+=) 16.Ra1+/– Qb8 17.h3 (17.cd5 ed5 18.Bd3 c5+=) 17...Rc8 (17...c5 18.bc6 Bc6 19.cd5 Nd5 20.Ne4+=) 18.Qa4 (18.cd5 ed5 19.Qf5 c5+=) 18...Ne4 (18...c6 19.cd5 cd5 20.Bd3=) 19.Qa7 (19.Ne4 de4 20.Nd2 c5+=) 19...Nc3 20.Bc3 c6 (20...dc4 21.Qb8 Rb8 22.Ra7+=) 21.Qb8 Bb8 22.Rc1 Nf6 23.Bb2 dc4 24.Rc4 cb5 25.Rc8 Bc8 26.Bb5 Bd7 27.Bd7 Nd7 28.Ba3 f6 29.Kf1 Kf7 30.Ke2 Bc7 31.Kd3 b5 32.g4 Ba5 33.e4 Nb6 34.Nd2?? Bd2-+ 35.Kd2 Nc4 36.Kc3 Na3 37.Kb3 Nc4 38.Kb4 Nd2 39.e5 Nf3 40.d5 ed5 41.ef6 d4 42.fg7 Kg7 (43.Kb3 d3-+) 0–1. Holz auf der Heide – Kalavrouziotis, CiF, 1995.

9.c4 dc4 10.Bc4 Be7 (10...Bb7 11.Nc3=) 11.0-0 0-0 (11...Bb7 12.d3=) 12.Nd4 Bb7 13.Be6 (better 13.Nc6 Bc6 14.bc6=) 13...Qa8 (better 13...Bg2!? 14.Kg2 fe6=) 14.Bd7+- Nd7 15.Nf5 Bd8?? (better 15...Bf6 16.Bf6 Nf6+-) 16.Bg7+- Re8 (16...Be4 17.Bf8 Bf5+-) 17.Qg4 f6 (17...Bg5 18.Qg5 Re6 19.Ne7 Re7 20.Bh6 Kh8 21.Qg7) 18.Nh6 1–0. GuestPZGD – GuestTSVT, freechess.org, 2020.

9.c4 Bd6 10.cd5 ed5 11.Be2=.

9.Be2 Bd6=.

9.Bd3 Bd6 10.0-0 0-0 (10...Nbd7 11.Qe2=) 11.Ne5 Be5 (11...Ne4 12.Bd4=) 12.Be5 Nc4 (12...Nfd7!? 13.Bc3 Qh4+=) 13.Bc4+- dc4 14.Bf6 Qf6 15.Qg4 e5 16.Qc4 c6 17.bc6 bc6 18.f4 Qd6 (18...ef4!? 19.Qf4 Qf4 20.Rf4 Be6+-) 19.fe5+- Qg6 20.d3 Rd8 (20...Re8 21.Qf4+-) 21.Nd2 h6 (21...Re8 22.Ne4 Qe6 23.Qe6 Be6 24.Ra1+-) 22.Qe4 Qg5 (22...Qe4 23.Ne4 (23.de4? Rd2 24.Rf2 Rd8-+) 23...Be6 24.Nd6+-) 23.Nf3 Qe7 24.Qc6 Bb7 25.Qb6 Bf3 26.Rf3 (26.gf3?! Rc8 27.e6 fe6+-) 26...Qg5 (26...Rc8 27.Qb3+-) 27.Rg3 Qe7 28.d4 (28.Qf6 Qf6 29.ef6 g6+-) 28...Rf8 (28...Kh8+-) 29.Qh6 f6 30.e6 (better 30.ef6 Rf6 31.Qg5 Qf7+-) 30...Qc7 (30...Rd8+-) 31.Qg6 Qe7 32.d5 f5 (32...Rd8 33.Rh3 Qe8 34.Qh7 Kf8+-) 33.Rh3 Rf6 (33...Qh4 34.Rh4 Rf6 35.e7 f4 36.e8Q Rf8 37.Qh7) 34.Qh7 Kf8 35.Qh8 1–0. GuestQQWL – sekleta, freechess.org, 2019.

9.Be2 g6 10.0-0 Bg7 11.d4 0-0 12.Nbd2 Qd6 13.c4 dc4 14.Nc4 Nc4 15.Bc4 b6 16.Bb2 Qb4 (16...Bb7 17.Qe2+=) 17.Qc2 (17.Qd3!? Rd8 18.Ba3+-) 17...Bb7+= 18.Ne5 Nh5 (18...Be4 19.Nc6 Bc6 20.bc6+=) 19.Bd3 (19.Ra1 Ra8 20.Ra8 Ba8+-) 19...Rc8 (better 19...Be5!? 20.Bc3 Bh2 21.Kh2 Qd6 22.Kg1 Rc8=+) 20.Bc3 Qd6 21.f4 (21.Rb1 Ra8+-) 21...Nf6 22.Qb2 Nd5 23.Bd2 Ra8 24.Nc4 (24.e4 Nf6 25.Bb4 Qd8+=) 24...Qd7 (24...Qd8 25.Be2=) 25.Ne5 (25.Ne5 Qd6 26.e4+=) 1–0. GuestCGND – hkljkop, freechess.org, 2019.

9.bc6 bc6 10.Be2 Qc7 A) 11.c4 A1) 11...Be7 12.Qc2 (12.Bf6 Bf6 13.cd5 cd5 14.d4 0-0 15.0-0 Bb7 16.Na3 Ra8 17.Nb5=; 12.cd5 cd5 13.Nc3 0-0 14.0-0 e5 15.Nb5 Qb8 16.d4 e4 17.Ne5=; 12.Qc1 0-0 13.cd5 ed5 14.d4 Ba6 15.Ba6 Qa5 16.Bc3 Qa6 17.Nbd2=+; 12.Nc3 0-0 13.0-0 e5 14.cd5 cd5 15.Nb5 Qb8 16.d4 e4 17.Ne5=) 12...0-0 13.cd5 ed5 14.0-0 c5 15.Nc3 Re8 16.Nb5 Qc6 17.Rb1=; A2) 11...Ba6 12.Bf6 (12.Qc1 Qb7 13.0-0 Bd6 14.d3 0-0 15.Qc2 dc4 16.dc4 Ra8 17.Nbd2=; 12.Qc2 Bc4 13.Bc4 dc4 14.Qc4 Bd6 15.Bf6 Nf6 16.0-0 0-0 17.Nc3=; 12.d3 dc4 13.dc4 Bd6 14.Nbd2 e5 15.Qc2 0-0 16.0-0 Nc5 17.Rd1=; 12.cd5 Be2 13.Qe2 cd5 14.0-0 e5 15.Qa6 Be7 16.Qa8 Bd8 17.Bb2=) 12...Nf6 13.Qa4 Bc4 14.Bc4 dc4 15.Qa8 Kd7 16.Na3 Rg8 17.Nc4=; A3) 11...e5 12.cd5 (12.Nc3 dc4 13.Bc4 e4 14.Nd4 Ne5 15.Be2 Nd3 16.Bd3 ed3 17.Qa4=) 12...cd5 13.Nc3 Be7 14.Nb5 Qb8 15.0-0 0-0 16.d4 e4 17.Ne5=; A4) 11...Bd6 12.cd5 (12.d4 dc4 13.Nbd2 Nb6 14.0-0 Ba6 15.Qc2 0-0 16.Nc4 Nc4 17.Bc4=; 12.Bf6 Nf6 13.d4 dc4 14.Qa4 0-0 15.Qc4 Bb7 16.0-0 c5 17.dc5=+) 12...cd5 13.Nc3 e5 14.Nb5 Qc6 15.Nd6 Qd6 16.0-0 0-0 17.Qc2=; B) 11.Bf6 Nf6 12.c4 (12.d4 c5 13.Nbd2 c4 14.0-0 Bd6 15.Qa1 0-0 16.Rb1 Bb7 17.Qc3=+) 12...e5 13.Nc3 e4 14.Nd4 Bc5 15.cd5 Bd4 16.ed4 cd5 17.Qa4=; C) 11.d4 C1) 11...c5 12.dc5 (12.0-0 c4 13.Bb2 Bd6 14.Ba3 0-0 15.Bd6 Qd6 16.Nc3 Ba6 17.Re1=) 12...Bc5 13.0-0 0-0 14.Nc3 Qc6 15.Bb5 Qb6 16.Qe2 Qd6 17.e4=; C2) 11...Ba6 12.Nbd2 (12.Ba6 Qa5 13.Nbd2 Qa6 14.c4 Be7 15.0-0 0-0 16.Qc2 Ra8 17.Rb1=; 12.0-0 Be2 13.Qe2 Bd6 14.c4 0-0 15.Nc3 Rb8 16.c5 Be7 17.Rb1=) 12...Be2 13.Qe2 Bb4 14.0-0 0-0 15.Rb1 Rb8 16.c4 Qa5 17.Qd1=.

9.bc6 bc6 10.Be2 Bd6 11.0-0 0-0 (11...e5 12.c4 (12.Nh4 Nb6 13.Nf3 Qc7 14.d4 e4 15.Ne5 Nbd7 16.Nd7 Bh2 17.Kh1 Bd7-/+; 12.Bb2 0-0 13.Nh4 Nb6 14.Nf3 Re8 15.d4 e4 16.Ne5 Qc7 17.Nd2=+; 12.Bc3 0-0 13.Nh4 Nb8 14.Nf3 Qc7 15.Ne1 Nbd7 16.Bb2 Qb6 17.Bc3-/+; 12.d3 0-0 13.Nh4 Bc7 14.Nd2 Qe8 15.c4 Qe6 16.Nhf3 Bd6 17.Qc2=) 12...e4 13.Nd4 Qc7 14.f4 0-0 15.cd5 cd5 16.Nb5 Qc6 17.Nd6=; 11...Qa5 12.Bf6 (12.Bc3 Qc7 13.d4 0-0 14.Nbd2 c5 15.dc5 Qc5 16.Bb2 Qb6 17.Qb1=; 12.Bb2 0-0 13.c4 Ba6 14.Bc3 Qb6 15.d3 Ra8 16.Qc2 Qc7 17.Nbd2=; 12.Nc3 e5 13.Nh4 d4 14.Nf5 Bc5 15.Ng7 Kf8 16.ed4 ed4 17.Nh5=) 12...Nf6 13.d4 0-0 14.c4 dc4 15.Nbd2 c3 16.Nc4 Qd5 17.Nd6=) 12.c4 (12.d4 Qa5 13.Nbd2 Ba6 14.c4 Qa2 15.Qb1 Qa4 16.Ne5 Ra8 17.Bc3=; 12.Nd4 e5 13.Nf5 Bc7 14.d4 e4 15.Ng3 Nb6 16.Bc3 Qe7 17.Qd2=+) 12...Ba6 13.cd5 (13.d4 Bc4 14.Bc4 dc4 15.Nbd2 Nb6 16.Qc2 Qd7 17.Rb1=) 13...Be2 14.Qe2 cd5 15.d3 (15.Bf6 Qf6 16.Nc3 Ne5 17.Ne5=+) 15...Qa5 (15...Qe7 16.Nc3 e5 17.Rb1=+) 16.Bc3 Qa4 17.Qd1 (17.Nd4 Qa6=+) 17...Qa6 18.h3 Rb8 19.Re1 Nc5 20.Bf6 gf6 21.d4 Nd3 22.Rf1 Nb2 23.Qc2 Nc4 24.Nbd2 Rb2 25.Qd3 Qa2 26.Nc4 dc4 (26...Qc4 27.Qd1=) 27.Qe4 c3 28.Qc6 Bb4 (28...c2 29.Ne1 Qb1 30.Nc2 Bh2 31.Kh2 Qf1 32.Na3 Qf2 33.Qa8 Kg7 34.Qe4-+) 29.Ne1 (better 29.Qc7=) 29...c2-/+ 30.Nd3 (30.Nc2!? Rc2 31.Qf3-/+) 30...Rb1-+ 31.Nc1 (31.Nb4?? Rf1 32.Kh2 Qb2 33.Nc2 Rc1-+) 31...Qb2 32.Nd3 (32.Qa8 Kg7 33.Qb8-+) 32...Rf1 33.Kf1 0–1. Bustelo,Tabare (2095) – Gonzalez,Nahuel (2055), ch–URU, Montevideo URU (8), 2004.

9.bc6 bc6 10.Be2 Bd6 11.c4 A) 11...0-0 12.0-0 (12.d4 Ba6 13.c5 Be2 14.Qe2 Bc7 15.0-0 e5 16.de5 Ne4 17.Bd4=; 12.cd5 cd5 13.Nc3 e5 14.Nb5 Bb8 15.d4 e4 16.Ne5 Qb6 17.Qb3=+; 12.Qc2 e5 13.c5 Bb8 14.d4 e4 15.Nfd2 Re8 16.Nc3 Re7 17.Qa4=) 12...dc4 13.Bc4 Nb6 14.Be2 c5 15.Qb3 Nbd5 16.Nc3 Nc3 17.Bc3=; B) 11...dc4 12.Qc2 (12.Qc1 Ba6 13.Bc4 Bc4 14.Qc4 Qb6 15.0-0 Qb5 16.Qc2 0-0 17.Nc3=; 12.Bc4 0-0 13.d4 Ba6 14.Ba6 Qa5 15.Bc3 Qa6 16.Qe2 Ra8 17.Qa6=+; 12.0-0 Nb6 13.Ne5 Ba6 14.f4 Qc7 15.Qc1 0-0 16.Na3 Nfd5 17.Nac4=+; 12.Bf6 Qf6 13.Bc4 0-0 14.Nc3 Qg6 15.0-0 Nb6 16.Qb3 Nc4 17.Qc4=) 12...Ba6 13.Bc4 Bc4 14.Qc4 c5 15.d3 0-0 16.0-0 Nb6 17.Qc2=; C) 11...Ba6 12.Qc2 (12.cd5 Be2 13.Qe2 cd5 14.0-0 0-0 15.Bf6 Qf6 16.Nc3 Ne5 17.Ne5=+; 12.d3 0-0 13.0-0 Qc7 14.Nbd2 e5 15.Qc2 Re8 16.Rd1 d4 17.Bb2=; 12.Bf6 Qf6 13.Qa4 Qb2 14.Qa6 Qb1 15.Bd1 Nb6 16.cd5 cd5 17.0-0=+; 12.Qa4 Qb6 13.0-0 Nc5 14.Qa2 Qb3 15.Qa5 Qa4 16.Qa4 Na4 17.d3=) 12...0-0 13.d3 Qe7 14.0-0 Rb8 15.Nbd2 e5 16.Bc3 Bc8 17.Ra1=; D) 11...e5 12.c5 Bb8 13.d4 ed4 14.ed4 0-0 15.0-0 Re8 16.Re1 Bf4 17.Bd3=.

9.bc6 bc6 10.Be2 Bd6 11.Nd4 A) 11...Qc7 12.Nc3 (12.f4 0-0 13.0-0 Bb7 14.Nc3 Ra8 15.Bb2 Qb6 16.Qc1 c5 17.Ndb5=+) 12...0-0 13.f4 e5 14.fe5 Ne5 15.h3 Qe7 16.0-0 Be6 17.Qe1=+; B) 11...c5 12.Nb5 Be7 13.0-0 0-0 14.Bb2 e5 15.c4 Bb7 16.cd5 Nd5 17.Qc2=; C) 11...Nb8 12.f4 e5 13.Nf5 ef4 14.Nd6 Qd6 15.Bf6 gf6 16.ef4 Qf4 17.g3=; D) 11...Qb6 12.f4 (12.Nc3 0-0 13.0-0 Ba6 14.Ba6 Qa6 15.f4 c5 16.Ndb5 Rb8 17.Qe2=+; 12.0-0 0-0 13.Nc3 Ba6 14.Ba6 Qa6 15.f4 c5 16.Ndb5 Rb8 17.Qe2=+; 12.Bc3 0-0 13.0-0 Ba6 14.d3 c5 15.Nb3 e5 16.N1d2 Ra8 17.Ba5=+) 12...0-0 13.0-0 Ba6 14.d3 c5 15.Nb3 Rb8 16.N1d2 Qc7 17.Bc3=+.

9.Bb2 e5 10.Be2 0-0 11.0-0 =+.

9.Bb2 e5 10.Be2 e4 11.Nd4= 0-0 (11...Nb6 12.0-0=) 12.Nf5 (12.f3 Nc5=) 12...Bb4 (12...Be5 13.Bc3=+) 13.0-0= Nc5 (13...Nb6 14.Ng3=) 14.Ng3 Bd7 (14...Re8 15.f3 ef3 16.Bf3=) 15.Bc3 (15.f3 ef3 16.Rf3 Nce4=) 15...Bc3 16.Nc3 c6 (16...Be6 17.d4 ed3 18.Bd3=) 17.f3 (17.bc6 bc6 18.d4 Ne6=) 17...ef3 18.Bf3 (< 18.gf3 Bh3 19.Re1 d4-/+) 18...Qe7 19.Qa1 Ng4 (19...Qd6 20.Qb2=) 20.Bg4 Bg4 21.Qa5 (better is 21.Qa7 Re8 22.Rb1=) 21...f6? (better is 21...Qd6!?=) 22.Qb4+/– Bc8 (22...h5!? 23.h3 h4 24.Qg4 hg3 25.Qg3 f5+/–) 23.Na4+- b6 24.bc6 Re8 25.Nb6 Be6 26.Nf5 Qf8 27.c7 Na6 28.Qf8 Kf8 29.Nd6 Nc7 30.Ne8 Ne8 31.Ra1 Nd6 32.Ra5 Ne4 33.d3 Nc3 34.Kf2 Ke7 35.Ra7 Kf8 36.Kf3 Nb5 37.Ra5 Nc7 38.c3 h5 39.Na8 Na8 40.Ra8 Kf7 41.Ra7 Kg6 42.e4 Bg4 43.Kf4 de4 44.Ke4 Be2 45.Ke3 Bg4 46.c4 Be6 47.Kd4 h4 48.h3 Bf7 49.Re7 f5 50.Ke5 f4 51.c5 f3 52.gf3 Be8 53.Kd5 Bb5 54.c6 Ba6 55.Re4 Kh5 56.Re5 Kh6 57.Re8 Kg6 58.c7 Kf7 59.Rd8 Bb7 60.Kc5 Ke6 61.Kb6 Bf3 62.c8Q Ke5 63.Rf8 Bg2 64.Kc5 Bh3 65.Qc7 Ke6 66.Qd6# 1–0. mtrc – Caissa, internet, 2002.

9.c4 Nb6 10.Qc2 dc4 11.Bc4 Nc4 12.Qc4 0-0 13.0-0 Nd7 14.d4 Nb6 15.Qc3 Bd7=+ 16.d5 Qf6 17.de6=+ fe6 18.Qf6 gf6 19.Nd4? e5-+ 20.Nf3 Bb5 21.Rc1 Nd5 22.Nc3 Nc3 23.Bc3 Ra8 24.Ra1 Ra1 25.Ba1 Kf7 26.Nh4 Bd3 27.g4 c5 28.f3 c4 29.Nf5 Bc5 30.Kf2 b5 31.Bc3 b4 32.Bd2 b3 33.Bc3 Bf5 34.gf5 Bb4!! (35.Bb4 b2-+) 0–1. pumpkin (2325) – wyckedknight, net–chess.com, 2009.

9.c4 c5 10.bc6 bc6 11.Qa4 Qb6 12.Nc3 0-0 13.Bd3? (better 13.Be2=+) 13...Nc5-+ 14.Qc2 Nd3 15.Qd3 Ba6 16.h4? (16.Qc2 Rb8 17.0-0 Bc4 18.d3-+) 16...Bc4 17.Qc2 Qa6 18.Bb2 Nd7 19.Ng5 (19.d4 Rb8-+) 19...Bd3 20.Qd1 Ra8 21.Qh5 (21.f4 Nc5 22.Kf2 Qb6-+) 21...Ne5 22.f4 (22.Nf7 Nf7 23.Nd1 e5-+) 22...Bg6 23.Qe2 Nd3 24.Kf1 h5 25.Nd1 Nb2 26.Nb2 Qa3 27.Nd1 (27.g4 Qb2 28.gh5-+) 27…Bd3 (27...Bd3 28.Kf2 Be2 29.Ke2 Qa6 30.Kf2 Qd3-+) 0–1. yodamo – bachplayer, ChessWorld.net, 2009. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.e3 Bd6 9.c4 c5)

9.c4 c5 10.d3 0-0 11.Be2 Bb8 12.0-0 Qc7 (13.Qc2 e5 14.cd5 Nd5=) =. Grosse,Michael – Vorobjev,Albert (2050), IECG, 2000.

9.c4 e5 10.d4 e4 11.Ne5 0-0 12.c5 Be7 13.c6 Ne5 14.de5 Ng4 (14...Ne8!?=+) 15.cb7+= Be6 16.Qc2 Bb4 17.Bc3 Qe7 18.Qa4 Bc3 19.Nc3 Ne5 20.Qd4 Nd7 21.Nd5 Bd5 22.Qd5 Qb4 23.Qd2 Qb1 24.Qd1 Qb4 25.Qd2 Qb1 26.Qd1 Qb4 27.Qd2 ½–½. Pierred (2240) – Socrates (2430), Rated game, 5m + 0s, 2005.

9.c4 e5 10.cd5 Nd5 11.Bc4 =+.

9.c4 e5 10.cd5 Nd5 11.e4 =+.

9.c4 Qe7 10.Be2 e5 11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 0-0 14.0-0 f5 (14...Rd8 15.d4=) 15.Bc4 Kh8 16.Qa1 (16.d4 e4 17.Nd2 Nb6=) 16...Re8 (16...e4 17.Nd4=+) 17.d3= e4 18.de4 fe4 19.Nd2 Nb6 20.Bb3 Bf5 (20...Qg5 21.h4 Qh6 22.Bd4=) 21.Qb2 Ba3 22.Qa1 Bc5 (22...Bb4 23.Nc4 Bc3 24.Qc3=) 23.Qb2 h5 (23...Rd8 24.Ra1=) 24.Nc4 Nd5 25.Ne5 Nc3 26.Nf7 Kh7 27.Qc3 Bb6 28.Rc1?? (better is 28.Qd2=) 28...Bg6-+ 29.Qc4 (29.Bd5-+) 29...Rf8 (30.Qe2 Bf7-+ (30...Rf7?! 31.Bf7 Bf7 32.Rd1-+)) 0–1. Scholz – Garcia, corr ICCF WT–M–103, 1978.

9.d4 Nb6 10.Bd3 =.

9.d4 c6 10.Bd3 c5 11.c4 dc4 (11...cd4!? 12.ed4 dc4 13.Bc4 b6=+) 12.Bc4= Nb6 (12...0-0 13.0-0=) 13.dc5 Bc5 14.Qd8 Kd8 15.Be2 Bb4 16.Nbd2 Ne4 (16...Ke7 17.0-0=) 17.0-0+= Nd2 18.Nd2 Bd2 (18...f6 19.Bd4 Nd5 20.Ne4+=) 19.Rd1+- Ke7 20.Rd2 f6 21.Bd4 Nd5 (21...Na4 22.Ra2 e5 23.Ra4 ed4 24.ed4+-) 22.g3 Rd8 (22...Kf7 23.e4 e5 24.Be5 fe5 25.Rd5+-) 23.e4+- Nc7 24.Rc2 (better 24.Bc5 Ke8 25.Rb2+-) 24...Nb5?? (better 24...Rd4 25.Rc7 Bd7=) 25.Bb5+- Rd4 26.Rc8 Re4 (26...Kd6 27.Rb8 Kc7 28.Rg8+-) 27.Rc7 Kd6 (27...Kf8 28.Bd3 Re1 29.Kg2+-) 28.Rg7 Rb4 (28...h5 29.Rb7 h4 30.Kg2+-) 29.Rb7 h5 (29...e5 30.Ba6 Ra4 31.Be2+-) 30.Ba6 (30.h4 e5+-) 30...Ra4 (30...Re4 31.Rh7+-) 31.Rb6 Ke5 (31...Ke7 32.h4+-) 32.f4 Kd5 (32...Kf5 33.Bd3 Kg4 34.Kf2+-) 33.Bb7 Kc5 (33...Kd4 34.Re6 Ra7 35.Bf3+-) 34.Re6 h4 35.Rf6 hg3 36.hg3 Ra2 (36...Ra7 37.Bf3 Ra3 38.Kg2 Ra2 39.Kh3+-) 37.Rf5 Kd6 (37...Kd4 38.Rd5 Ke3 39.f5+-) 38.g4 Rb2 (38...Ra7 39.Bf3+-) 39.Be4 Re2 (39...Ke6+-) 40.Re5 Rb2 41.g5 Rb8 42.g6 1–0. DEFFM – EdgarLoys, freechess.org, 2019.

9.d4 Ne4 10.Bd3 Ndf6 11.Nbd2 Bd7 12.0-0 0-0 13.c4 Nd2 14.Nd2 dc4 15.Nc4 Bb5 16.Nd6 Bd3 17.Nb7 Qd5 18.Qd3 Qb7 19.Rb1 Qc6 20.f3 Nd5 21.e4 Nb6 22.Qc3 Qc3 23.Bc3 Rc8 24.Ba5 Nc4 (24...Ra8!? 25.Rb5 h6+=) 25.Bc7+/- Kf8 26.Rb7 Ke8 27.Ra7 g6 28.d5 ed5 29.ed5 Ne3? (better 29...f5+-) 30.d6 Kd7 31.Bb6 (31.Bb6 Kd6 32.Be3+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Be2 Nc5 10.0-0= 0-0 11.d4 Nfe4?? (11...Nce4!?=) 12.c4?? (12.dc5 Nc5 13.Nc3 Bd7+-) 12...c6?? (12...Nd7 13.Nc3+=) 13.Nbd2?? (13.dc5 Nc5 14.Bd4 cb5 15.cd5 b4+-) 13...cb5?? (13...Nd7 14.c5 Be7 15.Bb2+=) 14.cb5?? (14.dc5 Nc5 15.cd5 ed5+-) 14...Qc7?? 15.Qc1?? Nd2= 16.Qd2 Ne4+= 17.Qc1 Bd7 18.Qc7 Bc7 19.Rc1 Rc8+= 20.Ne5 f6-/+ 21.Nd7?? Bh2!-+ 22.Kh2 Rc1 23.f3 Ng5 24.Nc5 Ra1 25.Nb7 Ra2 26.Bd3 Nf3 27.Kg3 Nd2 28.Nc5 e5 29.b6 Rb2 30.b7 Nc4 31.Bf5? Nd6?? 32.Bc8? Kf7?? 33.Be6 Ke7-+ 34.Bd5 ed4 35.ed4 Rb5 36.Bc6+= Nf5 37.Kf4+/– Nd4?? 38.Bb5+- (38.Bb5 Kd6 39.b8Q Kc5 40.Bd7+-) 1–0. Gibson,E Diarmid – Leckie,Robert, Glasgow SCO, Commonwealth Ch, 2014.

9.Be2 c6 10.c4 dc4 11.bc6 Nb6 12.Qc2 bc6 13.0-0 0-0 14.Bc4 Nc4 15.Qc4 Qb6 (15...c5!?=) 16.Bf6+= gf6 17.Nc3 f5 (17...Ba6 18.Qg4 Kh8 19.Rb1+=) 18.Rb1+- Qc5 (18...Qc7 19.d3+=) 19.Qc5 Bc5 20.Ne5 Bd6 21.Nc6 Bd7 22.Nd4 Ra8 23.f4 Kg7 24.Kf2 Kg6 25.Rb7 Be8 26.Ndb5 Bb8 (26...Bb5 27.Rb5 Ra3 28.Rb2+-) 27.Re7 (27.d4 f6+-) 27...Bc6+- 28.Nd4 Bd6? (better 28...Ra6+-) 29.Nc6+- Be7 30.Ne7 Kf6 31.Nc6 Rc8 32.Nd4 e5 (32...Ke7+-) 33.Nd5 Kg6 34.Ne7 (34.Ne7 Kf6 35.Nc8 ed4 36.ed4+-) 1–0. onur604 (2320) – Weiss_schwarz (1955), lichess.org, 2020.

9.Be2 Qe7 10.d4 0-0 11.0-0N e5 12.c4 e4 (12...dc4 13.de5 Ne5 14.Be5 Be5 15.Qc2=) 13.Nfd2= c6 14.c5 Bb8 15.Qa4 Re8 (15...Qd8!?=) 16.bc6+/- bc6 17.Qc6 Nf8 18.Nc3 Bb7 19.Qa4 Qc7 20.g3 Bc6 21.Bb5 Bb5 22.Qb5 h5?? (better 22...Rd8+/-) 23.Nd5!+- Nd5 (23...Qd8 24.Nf6 gf6 25.d5+-) 24.Qe8 h4 (24...Nf6 25.Qb5 Qd8 26.Qb7+-) 25.Rb1 hg3 (25...Ba7 26.Qa8 Nf6 27.Bc3 hg3 28.hg3+-) 26.Rb8 gh2 (26...gf2 27.Kg2 Ne3 28.Kf2 Qf4 29.Ke2+-) 27.Kh1 Ne3 (27...Qe7 28.Qe7 Ne7 29.Ne4+-) 28.Qf8 Kh7 29.Qh8 (29.fe3 f6+-) 29...Kg6 30.fe3 Qg3 31.Rb6 f6 32.Rf6! Kf6 (32...Kf6 33.Ne4 Double attack; 32...gf6 33.Qg8 Double attack (33.Ne4 Decoy)) 33.Ne4 (33.Ne4 Ke6 34.Qe8 Kf5 35.Ng3 Kg5 36.Qe5 Kh4 37.Kh2 g5 38.Qe4 g4 39.Qe7) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.Be2 h6 10.0-0 b6 (10...0-0 11.Nd4=) 11.d4 Ne4 12.Nbd2 Nd2 13.Qd2 Nf6 14.c4 Ne4 15.Qb2 Bd7 (15...dc4 16.Bc4 Nf6 17.Ne5+=) 16.c5+/- bc5 17.dc5 Nc5 18.Qg7 Rf8 19.Qh7 Qa8? (better 19...Ke7!?+-) 20.Bg7 (20.Qh6?! Qa2 21.Re1 Ne4+/-) 20...Qb8?? (20...Ne4+-) 21.Bf8 Bf8 22.Ne5 Bb5 (22...Ke7 23.Qf7 Kd6+-) 23.Qf7 Kd8 24.Qf8 Be8 25.Nc6 (25.Nc6 Kd7 26.Nb8 Kd8 27.Nc6 Kd7 28.Bb5 e5 29.Qe7 Kc8 30.Qe8 Kb7 31.Qb8) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

10.Qc2 b6 11.Bd3 dc4 12.Bc4 Bb7 13.Bb2 Ne4 (13...Qe7 14.Nc3+=) 14.d3 (14.h4 Qe7=) 14...Bb4+= 15.Ke2 Nd6 16.Bg7 Kg7 17.Qb2 Kh6 18.Qb4 Rg8 19.Nbd2 Rg2 20.Qc3 Nc5 21.Qd4 f6 22.Nb3 Bf3 23.Kf3 Rg5 24.Ke2 e5 25.Qh4 Kg7 26.Nc5 bc5 27.Qh3 f5 28.Qh4 h6 (worse is 28...Nc4 29.Qc4 (29.dc4?! h6 30.Rg1 e4 31.Rg5 hg5=) 29...e4 30.de4+/–) 29.Rg1 e4 30.f4 ef3 31.Kf3 Nb5 32.Rg3 (32.Bb5? Qd5 33.Kf2 Qa2 34.Kf3 Rg1 35.Qe7 Qf7 36.Qe5 Kh7-+) 32...Nd6 33.Bd5 Nf7 34.Bf7 Rg3 35.hg3?? (better is 35.Qg3 Kf7 36.Qe5 Qd3 37.Qc7 Kg6 38.Qc6 Kh5 39.Qc5 Qe4 40.Kg3 Qg4 41.Kf2=) 35...Qh4-+ 36.gh4 Kf7 37.Kf4 Kf6 38.h5?? (38.e4 fe4 39.Ke4-+) 38...c6 39.e4 (39.Kg3 Kg5 40.Kf3-+) 39...fe4 40.de4 c4 41.e5 Ke6 42.Ke4 c5 (42...c5 43.Kf4 Kd5-+) 0–1. Fua,Ni (2015) – Toledo,Ruben Javier, ICCF–FM72, 2010. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.e3 Nbd7 9.c4 0-0)

10.Qc2 b6 11.Be2 (11.cd5 A) 11...ed5 12.Be2 (12.Bd4 Re8 13.Be2 Qe7 14.0-0 Nc5 15.Nc3 Bb7 16.Ra1 Ne6 17.Ra7+=; 12.Bd3 Re8 13.Bd4 Nc5 14.Nc3 Nd3 15.Qd3 Nh5 16.Nd5 Be6 17.Bc3=; 12.Nd4 Ne5 13.f4 Ned7 14.Be2 Ne4 15.0-0 Re8 16.Nc3 Bb7 17.Nf5+=) 12...Qe7 13.0-0 Re8 14.Bd4 Nc5 15.Nc3 Bb7 16.Ra1 Ne6 17.Ra7+=; B) 11...Nd5 12.Be2 Nb4 13.Qc3 Nf6 14.0-0 Bb7 15.Na3 c6 16.bc6 Nc6 17.Rb1=; 11.Nc3 Bb7 (11...dc4 12.Bc4 Bb7 13.d4 Qa8 14.Qd1 c5 15.bc6 Bc6 16.Be2 e5 17.0-0=+) 12.cd5 Nd5 13.Bd3 N5f6 14.Ng5 Bg2 15.Rg1 h6 16.f3 hg5 17.Rg2-/+; 11.d4 A) 11...dc4 12.Bc4 (12.Nbd2 Bb7 13.Bc4 c6 14.0-0 Qc7 15.bc6 Qc6 16.Qb2 Rc8 17.e4=) 12...Bb7 13.Nbd2 c6 14.e4 Qa8 15.0-0 cb5 16.Bb5 Rc8 17.Qd3+=; B) 11...Bb7 12.Nbd2 Qe7 13.Bd3 Ra8 14.0-0 c6 15.bc6 Bc6 16.cd5 Ba4 17.Qb1=; 11.Bf6 Nf6 12.d4 dc4 13.Bc4 Bb7 14.Nbd2 Re8 15.Bd3 Qd7 16.Ne5 Be5 17.de5=) 11...dc4 12.Qc4 (12.Bc4 Bb7 13.Be2 Qe7 14.0-0 e5 15.d4 e4 16.Nfd2 Rc8 17.Nc3=; 12.0-0 Bb7 13.Qc4 Bd5 14.Qc2 Qe7 15.Nc3 c5 16.Rc1 Bf3 17.Bf3=) 12...Bb7 13.0-0 Qe7 (13...Qa8 14.Bc3 Ne4 15.Bb2 Bd5 16.Qc2 c6 17.d3=) 14.Nc3 Ra8 (14...Rc8 15.Rc1 c6 16.d4 e5 17.Bb2=) 15.Bb2 (15.Rc1 e5 16.d3 Rc8 17.Nh4=) 15...Qe8 (15...e5 16.d3 Nc5 17.Rd1=) 16.Ra1 (16.d4 Nd5 17.Rc1=) 16...Ra1 17.Ba1 e5 18.d3 Qa8 19.Bb2 h6 20.e4 Nf8 21.g3 Ng6 22.Nd2 Bc8 23.Qa4 Qa4 24.Na4 Bb4 ½–½. Schmidt,Karl Heinz (2125) – Santos Etxepare,Agustin (2280), EU/WS/M/019 ICCF, 2010.

10.Qc2 c6 A) 11.Be2 A1) 11...e5 12.c5 (12.bc6 bc6 13.c5 Bb8 14.d4 e4 15.Nfd2 Re8 16.Nc3 Re7 17.0-0=; 12.cd5 Nd5 13.0-0 Nb4 14.Qb2 Re8 15.Nc3 Nf6 16.d4 ed4 17.Nd4=) 12...Bc5 13.bc6 bc6 14.Ne5 Qc7 15.0-0 Bd6 16.Nc6 Bh2 17.Kh1 Bb7+=; A2) 11...cb5 12.cb5 (12.cd5 Nd5 13.Bb5 N7b6 14.Bd4 Bd7 15.Bd3 f5 16.0-0 Bc6 17.Be2=) 12...b6 13.0-0 e5 14.Rc1 Qe7 15.Nc3 Bb7 16.Qf5 Nc5 17.d4=; A3) 11...dc4 12.bc6 (12.e4 Ng4 13.bc6 bc6 14.Qc4 Qb6 15.0-0 Bb7 16.Qc2 Ra8 17.Bc3=; 12.Qc4 Nb6 13.Qh4 Nfd5 14.Qd8 Rd8 15.bc6 bc6 16.Nc3 f6 17.Ne4=; 12.Bc4 cb5 13.Bb5 Qa5 14.Qa4 Qa4 15.Ba4 e5 16.d3 Rd8 17.Bb5=+) 12...bc6 13.Bc4 Bb7 14.d3 Nb6 15.Nbd2 Nc4 16.Nc4 Bb4 17.Nfd2=; B) 11.Bf6 Qf6 12.d4 Bb4 13.Nbd2 c5 14.cd5 ed5 15.Bd3 h6 16.dc5 Nc5 17.0-0=; C) 11.Bb2 C1) 11...Re8 12.cd5 (12.d4 c5 13.dc5 Nc5 14.Be2 e5 15.0-0 e4 16.Nfd2 Bf5 17.Bd4=) 12...cd5 13.d4 e5 14.de5 Ne5 15.Be5 Be5 16.Be2 Bd6 17.0-0=; C2) 11...Qc7 12.bc6 Qc6 13.Nd4 Qb6 14.Nc3 dc4 15.Ncb5 Ne5 16.Nd6 Qd6 17.f4=; C3) 11...e5 12.d4 (12.cd5 Nd5 13.bc6 Nb4 14.Qc3 Nc6 15.Bb5 Qb6 16.Bc6 bc6 17.0-0=+; 12.c5 Bc5 13.bc6 bc6 14.Ne5 Ne5 15.Be5 Nd7 16.Bg3 Qf6 17.Bd3=) 12...e4 13.Nfd2 Ng4 14.c5 Bc7 15.b6 Bh2 16.Be2 Ndf6 17.g3=; C4) 11...cb5 12.cd5 (12.cb5 e5 13.Be2 e4 14.Nd4 Nc5 15.0-0 Qc7 16.f4 Bd7 17.Rc1=) 12...Nd5 13.Bb5 Nc5 14.Be5 Nb4 15.Qc3 Ne4 16.Qc4 Qa5 17.Bb2=; D) 11.cd5 cd5 12.d4 Nb6 13.Bd3 Bd7 14.0-0 Qe7 15.Ne5 Rc8 16.Nc3 Nc4 17.Bc4=.

10.Qc2 Ne4 A) 11.Be2 A1) 11...Nef6 12.d4 (12.cd5 Nd5 13.0-0 Nb4 14.Qc4 Nb6 15.Qc3 f6 16.e4 Qe8 17.e5=; 12.0-0 dc4 13.Bc4 e5 14.d3 Qe7 15.Qc3 Re8 16.Ng5 Nd5 17.Bd5=; 12.d3 e5 13.0-0 Qe8 14.d4 dc4 15.de5 Ne5 16.Be5 Be5 17.Na3=) 12...dc4 13.0-0 Nb6 14.Nbd2 Bd7 15.Rb1 Nfd5 16.Nc4 Nc4 17.Bc4=; A2) 11...c5 12.Bb2 (12.0-0 Ng5 13.Ng5 Qg5 14.f4 Qh6 15.Bb2 Rd8 16.Nc3 Nb6 17.cd5=) 12...Nef6 13.0-0 Re8 14.Nc3 dc4 15.Bc4 Nb6 16.d3 Nc4 17.dc4=; A3) 11...Qe7 12.d4 c5 13.0-0 b6 14.Nc3 Bb7 15.dc5 Ndc5 16.cd5 ed5 17.Rd1=; A4) 11...Ng5 12.d3 (12.cd5 ed5 13.0-0 Re8 14.Ng5 Qg5 15.Bd4 Nb8 16.f4 Qf5 17.Rc1=; 12.Nd4 e5 13.Nf5 dc4 14.f4 Ne6 15.Nd6 cd6 16.fe5 de5 17.0-0=; 12.d4 Nf3 13.Bf3 dc4 14.Nd2 Qg5 15.Qc4 Nf6 16.Qb3 Bd7 17.Bb7=) 12...dc4 13.dc4 Nf3 14.Bf3 Qh4 15.Nd2 Rd8 16.Bc3 Qh6 17.Ne4=; B) 11.d4 Bb4 12.Bc3 Nc3 13.Nc3 Nb6 14.Qb3 Ba5 15.Nd2 Qg5 16.c5 Nd7 17.Qa3=; C) 11.Nc3 C1) 11...Nc3 12.Bc3 (12.Qc3 f6 13.d4 dc4 14.Bc4 Nb6 15.Bd3 Nd5 16.Qc2 g6 17.Qe2=) 12...Re8 13.d4 c5 14.bc6 bc6 15.Bd3 h6 16.c5 Bc7 17.0-0+=; C2) 11...Ndf6 12.Ne4 (12.d3 Nc3 13.Bc3 b6 14.Be2 dc4 15.dc4 Bb7 16.0-0 Ne4 17.Bb2=; 12.cd5 Nc3 13.Bc3 Nd5 14.Bd3 f5 15.0-0 Bd7 16.Ra1 c6 17.Bd4=; 12.d4 c5 13.cd5 Qa5 14.Qa4 Bc7 15.dc5 Nc3 16.Qa5 Ba5 17.d6-+) 12...Ne4 13.Bd3 f5 14.0-0 c6 15.bc6 bc6 16.Be2 c5 17.Rb1+=; C3) 11...Nef6 12.d4 c5 13.bc6 bc6 14.c5 Bc7 15.Qa4 Bb7 16.Bd3 e5 17.Ne5=.

10.Qc2 e5 11.d4 e4 12.Nfd2 c6 13.c5 Be7 14.Bc3 Nb8 15.Qa4 Bg4 16.Ba5 Qd7 17.h3=.

10.Nc3 b6 11.Be2 (11.Nd4 Bb7 12.cd5 Nd5=) 11...dc4 (11...Bb7 12.0-0=) 12.Bc4=+ Bb7 13.0-0 Ng4 14.g3 (14.e4 Nde5 15.Ne5 Ne5= (15...Be5? 16.Qg4 Qd2 17.Ne2 Ba1 18.Ra1+-)) 14...Nde5 (14...Bf3!? 15.Qf3 Nh2 16.Kh2 Qh4 17.Kg2 Qc4-/+) 15.Be2= Bf3 16.Bf3 Qg5 (16...Nf3 17.Qf3 Ne5 18.Qe2=) 17.Ne4 (17.Bg2!? Nd3 18.Ne4+-) 17...Qh5= 18.h4 Nf3 19.Qf3 Rd8 (19...Be7 20.Rc1 f5 21.Ng5 Bg5 22.hg5=) 20.Nd6+= cd6 21.Rc1 (21.Qc6 d5+=) 21...e5 22.Rc6 (22.Qc6 Qg6+=) 22...Qg6 23.Bc3 Qb1 (23...h6 24.e4+=) 24.Kg2+- Qg6 25.Rb6 h5 (25...e4 26.Qf4+-) 26.Rc6 (26.d4 Qc2 27.Rc6 Qb3+-) 26...Qd3 (26...Nf6 27.b6 Qb1 28.d4+-) 27.b6+- d5?? Black prepares e4 (better 27...Qb1+-) 28.b7 e4 (28...Qb5 29.Rc8 Rf8+-) 29.Qf5 Ne3 (29...Rf8 30.Rc8 Qb5 31.Rf8 Kf8 32.Qc8 Ke7 33.b8Q Qb8 34.Qb8+-) 30.fe3 (30.de3 Qb5 31.Rc8+-) 30...Qe2 31.Kh3 (better 31.Qf2 Qb5 32.Rc8+-) 31...Qd1 32.Qf2 (32.g4 Qh1 33.Kg3 Qg1 34.Kf4 Qf2 35.Kg5 Qg3+-) 32...Qh1 33.Qh2 Qf1 34.Qg2 Qb5 35.Rc8 (better 35.Rc7!? Qb6 36.Ba5 Qa5+-) 35...Qd7 36.Kh2 (36.g4 Rc8 37.bc8R Qc8+-) 36...Rc8 37.bc8R Qc8 38.Qh3 Qh3 (38...Qc4 39.Kg1 Qe2 40.Qc8 Kh7 41.Qf5 Kg8 42.Qf1+- (42.Qd5?! Qd1 43.Kg2 Qf3 44.Kh2 Qe2 45.Kh3 Qf1 46.Kh2 Qe2 47.Kh1 Qf3 48.Kh2 Qe2=)) 39.Kh3 f5 40.Bd4 g6 41.Kg2 Kf7 42.Kf2 Ke6 43.Ke2 Kf7 44.Kd1 Ke7 45.Kc2 Ke6 46.d3 Kd7 (46...Kd6 47.Kc3+-) 47.de4 de4 48.Kc3 Ke6 49.Kc4 Kd6 50.Bg7 (50.Bh8 Ke7+-) 50...Ke6 51.Kd4 Kf7 52.Bh6 Ke6 53.Bg5 Kd6 54.Bf4 Ke6 55.Kc5 Ke7 56.Kd5 Kf7 57.Ke5 (better 57.Bg5+-) 57...Ke7 58.Bg5 Kf7 59.Bf6 (59.Kd5!? Kg8 60.Ke6 Kg7+-) 59...Kg8 60.Ke6 Kf8 61.Be5 Kg8 62.Kf6 Kh7 (62...Kf8+-) 63.Kg5 (63.Kf7 Kh6 64.Bc3 Kh7 65.Bg7 f4 66.gf4 g5 67.hg5 h4 68.g6) 63...Kg8+- If Black now only could play Bf6... 64.Kg6 Kf8 65.Kf5 Ke7 66.Ke4 Ke6 67.Kf4 Kf7 68.Kg5 Ke6 69.Bf4 Ke7 70.Kh5 Kf6 71.Kg4 Ke6 72.Kg5 Kf7 73.h5 Ke8 74.Kg6 Ke7 75.Kg7 Kd7 76.h6 Kc6 77.h7 Kb5 78.Kf6 Kc4 79.g4 Kc3 Plans g5 80.g5 Kd3 81.g6 Ke2 82.g7 Kd2 (82...Ke1 83.g8Q Kd2 84.Qb3 Ke2 85.Qc2 Kf1 86.Bg3 Kg1 87.Qf2 Kh1 88.h8Q) 83.g8Q Ke2 (83...Kc2 84.Qc4 Kd1 85.h8Q Ke1 86.Qh1 Kd2 87.e4) 84.h8Q Kd2 (84...Kd3 85.Qb3 Ke2 86.Qc2 Kf3 87.Qh5) 85.Qb3 Ke1 (85...Ke2 86.Qc2 Kf3 87.Qh5) 86.Qh2 Kf1 87.Qb1 (87.Qd1) 1–0. Bonetti,Shane – Gnuchess Mac 4, 2000.

10.Nc3 Nb6 11.d3 Bb4 12.Qb3 Qe7 13.Be2 Bd7 (13...dc4 14.dc4 Bd6 15.0-0=) 14.0-0 Ra8 (14...Bd6 15.Na4=) 15.Bb2 (15.Ne5=) 15...Bc3 (15...Bd6!?=) 16.Bc3+= Qa3 17.Qa3 (17.Qc2 Qa4 18.Qb2 Qa2+/–) 17...Ra3 18.Rb1?? (18.Rc1 dc4 19.dc4 c5+=) 18...Ra2?? (better is 18...Rc3 19.Ne5 Bc8-+) 19.Kf1+= Na4 20.Be5 c5 21.Ra1+/– Ra1 22.Ba1 Ne8 23.Ne5 Bc8 24.d4 f6 25.Nf3 cd4= 26.ed4 dc4-/+ 27.Bc4 Nb6 28.Be2 Nd6 29.Bc3 Bd7 30.Ba5 Nbc4 31.Bb4 Bb5 32.Ke1 Bc6 33.Nd2 Nd2 34.Bd6 Ne4 35.Bb4=+ Kf7?? 36.f3+/– Ng5 37.h4 Nf3 38.gf3 g5 39.hg5 fg5 40.Kf2 h6 41.Kg3 Bd7 42.f4+- gf4 43.Kf4 Bc6 44.Bh5 Kg7 45.Ke5 Bd5 46.Kd6 Bc4 47.Ke7 b5 48.Bd6 Bd5 49.Be5 Kh7 50.Kf7 Be4 51.Ke6 b4 52.d5 b3 53.d6 (53...Bc6 54.d7 Bd7 55.Kd7+-) 1–0. Zahn,R – Ciaxz,R, VEM, 2000.

10.Nc3 Nb6 11.d3 Qe7 12.Be2 =+.

10.Nc3 Nb6 11.cd5 ed5 12.Bd3 (12.Be2 Be6=+) 12...Bg4 13.h3 Bh5 14.Na4 (14.0-0 Re8=+) 14...Nbd7 15.g4 (15.0-0 Re8=+) 15...Bg6 16.Bg6 fg6 17.0-0 (17.d3 c5-/+) 17...Qe7 18.Qb3 (18.Bd4 c5 19.bc6 bc6=+) 18...c6 19.bc6 bc6 20.Qd1 h5 (20...Ne4 21.d3 Rf3 22.Qf3-/+) 21.Nd4=+ c5 22.Nb5 Bb8 (22...hg4 23.hg4 Bb8 24.g5=+) 23.Bf6 (23.f3 c4=+) 23...Qf6 24.f4 hg4 25.Qg4+= Qc6 26.Qe2 Rf5 27.Nac3 Nf6 28.Rb1 Qc8 29.Qg2 Rh5 30.Ra1+= Qc6 31.Rb1 Qe6 32.Ne2 Qh3 33.Qh3 Rh3 34.Nbd4 Bd6 35.Kg2 Rh6 36.Nf3 Rh5 37.Rb6 Ne8 38.Ng3 Rh8= 39.Rb7 Nf6 40.Ng5+= Rh4 41.Ne6 Ne8 42.Ne2 Rh6 43.Nc3 g5 44.Ng5 Nf6 45.Nb5 Bf8+= 46.Nc7 Ne4 47.Ne4 de4+= 48.Nb5 Re6 49.Kg3 g6 50.Kg4 c4 51.Rc7+/– Bb4 52.Nc3 Bc3 53.dc3 Rd6 54.Kg5 Rd5 55.Kg6 Rd6 56.Kf5 Rd3 57.Ke4 Rc3 58.f5 Kf8 59.f6 Ke8 60.Re7 Kf8 61.Kf5 Rb3 62.e4 Rf3 63.Kg6 Rg3 64.Kh5 Rh3 65.Kg4 Re3 66.e5 Re1 67.Kf5 c3?? 68.Rc7 Kg8 69.Rc3 1–0. cgits (2635) – rcastaneda (2760), net–chess.com, 2005.

10.Nc3 Nb6 11.cd5 Nbd5 12.Be2 =+.

10.Nc3 dc4 11.Bc4 Nb6 12.Bb3 =+.

10.Nc3 dc4 11.Bc4 c6 12.0-0+= cb5 (12...Nb6!? 13.Be2 c5=) 13.Nb5+- Be7 14.d4 (14.Bd4 b6+-) 14...Nb6 15.Bd3 h6 (15...Bd7 16.Nc3+-) 16.Ne5 Nfd7 17.Qb1 Ne5 18.Bh7 Kh8 19.de5 Bd7 20.Nd6 Qc7 (20...Bc6 21.Be4+=) 21.Rc1 Bc6 22.Be4 Nd5 (22...Nc8 23.Qb2 Qd7 24.Bc6 bc6 25.Ne4+=) 23.Bd5+- ed5 24.Nf5 Rd8 (24...Re8 25.e6 f6 26.Nd4+- (26.Ne7?! Qe7 27.Qf5 Qe6 28.Qe6 Re6=+)) 25.Bd4 (25.e6 f6+-) 25...Re8 26.e6 f6 27.Nh6 (27.Bb6 Qe5 28.Nd4 Bd6+-) 27...gh6+= 28.Qg6 Qd8?? (better 28...Bd8 29.Bf6 Bf6 30.Qe8 Kh7+=) 29.Qh6+- Kg8 30.e4! de4 (30...de4 31.Rc3 Combination) 31.Qg6 Kf8 (31...Kh8 32.Rc3 e3 33.Re3 Bf3 34.Rf3 Qd4 35.Rh3 Qh4 36.Rh4) 32.Qf7 1–0. DEFFM – GuestQLMZ, freechess.org, 2019.

10.Nc3 dc4 11.Bc4 e5 12.Qc2 Nc5 13.Ng5 h6 14.Nge4 Nfe4 15.Ne4 Bf5 16.d3 Ne4 17.de4 Bg4 18.0-0 Qg5 19.Kh1 Kh8 20.Bd5 b6 21.Qd2 f5 22.f4 (better is 22.h3!? Bh5 23.ef5=) 22...fe4 23.Be4 (23.fg5?? Rf1) 23...ef4 24.ef4 Rf4 25.Rf4 Qf4 26.Qf4 Bf4 27.g3 Bd6 28.Kg2 Bd7 29.Bd3 c6 30.bc6 Bc6 31.Kf2 Be7 32.Bc3 Bf6 33.Bb4 Bd4 34.Ke2 Bg1 35.h4 Bc5 36.Bc5 bc5 37.Bg6 Bd5 38.Ke3 Kg8 39.Kf4 Bb3 40.Ke5 Kf8 41.g4 Ke7 42.g5 Bf7 43.Bf5 h5 44.Bc2 Be6 (44...Kd7 45.Ba4 Kc7 46.Bc2+=) 45.Bd1 (45.Bg6!?=) 45...Bg4+= 46.Bc2 Be2 47.Bg6 c4 48.Kf4 Bd1 0–1. Thesing,Michael (1915) – Kemper,Georg (1935), Muensterland Verbandsklasse–B, 2006.

10.Nc3 dc4 11.Bc4 h6 12.Qc2=.

10.Nc3 Nc5 11.cd5 ed5 12.Be2 Qe7 13.0-0 Bg4 14.Nd4 Be2 15.Qe2 Be5 (15...Ra8 16.Bb2=+) 16.Nf3 (16.Nf5 Qd7 17.d4 Qf5 18.de5 Qe5+=) 16...Bc3 17.Bc3 Nce4 18.Bd4 Ra8 19.d3 Nc5 20.Qc2 Ne6 21.Be5 Ng4 22.Ra1 Ra1 23.Ba1 Qb4 24.Qb2 Qb2 25.Bb2 Nc5 26.Ne1 f6 27.d4 Na4 28.Ba3 Nc3 29.h4 (better 29.b6!? cb6 30.h3=) 29…Nb5-/+ (29...Nb5 30.Bb4 Kf7-/+) 0–1. GuestYRDG – GuestQDSV, freechess.org, 2017.

10.Nc3 Re8 11.Qc2 dc4 12.Bc4 Nb6 13.Bd3 =+.

10.Nc3 Re8 11.Qc2 e5 12.cd5= Nb6 13.e4 Nh5 14.Nd1 Nf4 (14...Bg4 15.Be2=) 15.Ne3+= Qf6 (15...Qe7 16.g3+=) 16.Bb2 (16.d4 ed4 17.Bd4 Qg6+=) 16...Bd7 17.Qb3 (17.h3 Qg6+=) 17...Ra8 (17...Bc5 18.Bc3 Bd4 19.Qb4= (< 19.Nd4 ed4 20.Bb2 Re4-/+)) 18.d4+= ed4 19.Bd4 (< 19.Nd4 Na4-/+) 19...Qe7 20.Nd2 Bb4 (20...Bc5 21.Bc5 Ra1 22.Nd1 Qc5 23.Qb2+=) 21.Bc3 (21.e5 Bc5 22.Qc3 Bb4 23.Qc7 Nfd5=+) 21...Bc5= 22.Bb2 Na4 23.Bc1 Bb4 24.Qc4 (better is 24.f3!?=+) 24...Nc5-+ 25.Nc2 Ra4 26.Nb4 Rb4! 27.Qc3 (27.Qb4 Ncd3) 27...Ne4 28.d6 Nd6 (28...Nc3?! 29.de7 Nb5 30.Nb3 Re4 31.Kd1-+) 29.Qe3 0–1. b4_player – opponent, gamecolony.com, 2008.

10.Nc3 Re8 11.Qc2 h6 12.cd5 ed5 13.Be2 Nc5 14.0-0 Qe7 (14...Bg4 15.h3 Bh5 16.Bb2=) 15.Bb2= Bg4 16.Ra1 Nce4 17.Ra7 Bc5 18.Ra2 Nc3 19.Bc3 Ne4 20.Ba1 Bb6 21.Qb2 f6 22.Qb3 Qd6 (22...Qc5 23.h3 Qc1 24.Kh2=) 23.Bd4 (23.d3 Nc5 24.Qb1 Qf8=) 23...Rd8 (23...c5 24.bc6 Bd4 25.cb7+-) 24.Qc2 (24.d3 Nc5 25.Qa3 Bd7=) 24...Rc8 (24...h5 25.h3 Bf3 26.Bf3 Bd4 27.ed4=) 25.d3+= Bf3 26.Bf3 Bd4 (26...Ng5!? 27.Bg4 Rf8 28.Bb6 Qb6+=) 27.de4+/– Qb4 28.g3 Be5 29.ed5 Qb5 30.Qf5 Rd8 31.Be4 Kf8 32.Qh7 Qd7 33.Ra7 f5 34.Bf5 (worse is 34.Qf5 Qf5 35.Bf5 Rd5 36.Rb7 Rd2+=) 34...Qd5 35.Be4 Qf7 36.Ra5 Bf6 37.Bb7 Rd1 38.Kg2 Qc4 39.Ra8 Ke7 40.Kh3 (40.Qg6 Qf1 41.Kf3 Qh1 42.Kf4 Qb7 43.Qe8 Kd6 44.Rd8 Bd8 45.Qd8 Kc5 46.Qd1 Qb2+/–) 40...Rg1+= 41.Qf5 Qf1 42.Kg4 Qe2 43.Bf3 Qc4 44.e4 Ra1 45.Rc8 Ra2 46.Bd1 g6 47.Qg6 Rf2 48.Re8 Kd7 49.Ba4 Kd6 50.Rd8 Kc5 51.Rd5 Kb4 52.Bb5 Qb3 ½–½. Cottarelli,Franco (2070) – Santos Etxepare,Agustin (1965), corr WS/M/185 ICCF, 2008.

10.Nc3 Re8 11.d4 Bb4 =.

10.cd5 Nd5 11.Be2 e5 12.Nc3 Nc3 13.Bc3 e4 14.Nd4 Qg5 15.0-0 Nf6 16.f3 Qh6 17.f4 g5 18.Qe1 gf4 19.ef4 Nd5 (19...Bf4 20.g3 Bd6 21.Nf5 Bc5 22.Kg2+/–) 20.Qg3 Qg6 21.Bb2 Rd8 22.Nb3 Qg3 23.hg3 Be6 24.f5 Bd7 25.g4 c6 (25...Ra8 26.Ra1 Ra1 27.Ba1+=) 26.Na5 ½–½. Kural,A Serhat (2000) – Sanchez Ortega,Ruben, Jubilee, 2007.

10.Be2 Nb6 11.cd5 ed5 12.0-0 Qe7 13.Qc2 Bg4 14.Bd4 Ne4 (14...Nbd7 15.Nc3=) 15.d3 Nc5 16.Nc3 Ra8 17.Rc1 Ncd7 18.h3 Be6 19.Qd2 f6 20.Qe1 c5 21.bc6 bc6 22.Bb6 Nb6 23.Nd4 (23.d4 Bb4 24.Qd1 Bf5=) 23...Bd7=+ 24.Bg4 Bb4 (24...Bg4 25.hg4 Qe5 26.Nf3=+) 25.Ra1= Na4 (25...Ra4 26.Bd7 Qd7 27.Nc2=) 26.Bd7 (26.Ra4? Ra4 27.Bd7 Qd7-+) 26...Qd7 (worse 26...Bc3 27.Qc3!? Qd7 28.Qc6 Qc6 29.Nc6+-) 27.Qd1 Bc3 28.Ra4 Rb8 29.Ne2 Be5 30.d4 Bd6 31.Qc2 Qc8 32.Ra7 Ra8 33.Ra8 Qa8 34.g3 (34.Nc1 g6=) 34...g6 (34...Qc8 35.Kg2=) 35.Kg2 (35.Nc3 Qb7=) 35...Qb7 36.g4 Kf7 37.Kf3 Qb6 38.h4 Qb5 (38...Qc7 39.h5=) 39.h5 Qc4 (39...c5 40.dc5 Qc5 41.Qc5 Bc5 42.Nf4+=) 40.Qb1 (40.Qc4 dc4 41.e4 Bb4+=) 40...Qb4 41.Qa1 (41.hg6 hg6 42.Qc2 Qb6=) 41...Qa3 (41...Qb8 42.Qa2=) 42.Qb1 Qb4 43.Qh1 (43.hg6 hg6 44.Qc2 Qb5+=) 43...Kg7= 44.Qa1 Qb8 45.hg6 hg6 46.Qa6 Qe8 47.Nc3 Qd7 48.Qf1 f5 49.Qh3 fg4 50.Qg4 Qf7 51.Ke2 Qf5 52.Qf5 gf5 53.Kf3 Kf6 54.Ne2 c5 55.dc5 Bc5 56.Kg3 Ke5 Black plans d4 57.Kf3 Ba7 58.Ng3 d4 59.ed4 Bd4 60.Ne2 Bc5 61.Nf4 Ba3 62.Nd3 Kd4 63.Nf4 Bc1?? (better 63...Bd6=) 64.Ne2+- Kd3 65.Nc1 (65.Nc1 Kd2 66.Kf4+-) 1–0. DEFFM – GuestHQQZ, freechess.org, 2018.

10.Be2 c6 11.0-0 cb5 12.cb5 Nb6 (12...e5 13.Nc3=+) 13.Qc2= Bd7 (13...Re8 14.Be5+=) 14.Rc1 (14.Bd4 Qc8 15.Qc8 Nc8+=) 14...h6 (14...Qe7!?=) 15.Bd4+= Nc8 (15...Re8 16.Ne5+=) 16.Qb2 Be7 (16...Ne7 17.Bf6 gf6 18.Qf6+-) 17.Ne5+- Be8 18.Nc3 Nd6 19.Na4 Qb8 (19...Nfe4 20.f3 f6 21.Ng4+-) 20.Nb6 (better 20.Bd3+-) 20...Nde4? (better 20...Bd8+-) 21.Rc8+- Qa7 (21...Qd6 22.f3 Ng5+-) 22.Ra8 Qa8 23.Na8 Bb5 (23...Nd6 24.Nb6+-) 24.Qb5 Ra8 25.Qb7 Re8 26.Qc7 Nd6 27.Bc5 Rd8 (27...Nfe4 28.d4 Bf8+-) 28.Qe7 (28.Qe7 Re8 29.Qd6+-) 1–0. GuestZSJP – kitchoo, freechess.org, 2020.

10.Be2 c6 11.d4 dc4 12.bc6 Nb6 13.Nbd2 =.

10.Be2 c6 11.d4 Ne4 12.Nbd2 (12.c5 Qa5 13.Nbd2 Bc7=) 12...f5 (12...Nd2 13.Qd2 dc4 14.Bc4 cb5 15.Bb5=) 13.Qb3 (13.c5 Be7+=) 13...Qa5= 14.Bb2 Bb4 15.Qc2 (15.Bc1 Ndf6=) 15...cb5=+ 16.cb5 Ndf6 17.Bc1 Bd7 18.0-0 Rc8 19.Qd3 Nc3 20.Nb3 Qa2 (20...Bb5?! 21.Qb5 Qb5 22.Bb5 Nb5 23.Ng5-/+; 20...Ne2?! 21.Qe2 Bb5 22.Qb2-+) 21.Bd1 (21.Kh1 Bb5 22.Qd2 Qd2 23.Bd2 Be2-+ (23...Ne2?! 24.Bb4 Ng3 25.hg3 Bf1 26.Kg1-+)) 21...Bb5 (21...Nb5?! 22.h3-/+) 22.Qd2 Ne2 (23.Be2 Bd2 24.Bb5 Qb3 25.Bd2 Qb5-+) 0–1. Paltrinieri – Rudbeck,Joergen, corr ICCF TT–4–90 SF, 1995.

10.Be2 Re8 11.d4 c5 (11...dc4 12.Bc4 Nb6 13.Bd3=) 12.0-0 cd4 (12...b6 13.dc5 bc5 14.Nc3=) 13.ed4 (13.Qd4 e5 14.Qh4 dc4=) 13...b6=+ 14.Nbd2 Qc7 15.Qb1 (15.Qc2 Bb7=+) 15...Bb7 16.g3 (16.Rc1 dc4 17.Rc4 Qb8=+) 16...Ra8 (16...dc4 17.Rc1-/+) 17.Rc1=+ Qb8 18.Qc2 (18.Bc3 dc4 19.Nc4 Be4=+) 18...Bf8 (18...dc4 19.Nc4 Be4 20.Qb3=+) 19.Bb2 (19.Ne5 dc4 20.Ndc4 Qd8=) 19...Ra2 (19...dc4 20.Ne5=+) 20.Qb3 Qa8 21.Rc2 Ra4 22.cd5 (22.Ne5 Bb4=+) 22...Bd5 23.Qc3 (23.Qe3 Ra2=+) 23...g6 (23...Ra2 24.Ne5=+) 24.Qc7 (24.Ne5 Ra2=+) 24...Ra2 (24...Ra7 25.Qf4=+) 25.Qc3 (25.Ne5 Ra7 26.Qc3 Kg7=) 25...Qa4 (25...Qa5 26.Qe3=+) 26.Bd3 (26.Ne5 Kg7=+) 26...Bb4 (26...h6 27.Ne5=+) 27.Qc8 Kg7 0–1. DEFFM – GuestNKQG, freechess.org, 2018.

11.d4 A) 11...Re8 12.cd5 (12.dc5 Nc5 13.Be2 e5 14.0-0 e4 15.Nfd2 Bf5 16.Bd4 Ne6 17.Bb2=) 12...ed5 13.dc5 Nc5 14.Be2 Nfe4 15.0-0 Bf5 16.Qa2 b6 17.Rd1=; B) 11...b6 12.cd5 (12.Bd3 cd4 13.Nd4 dc4 14.Qc4 Ne5 15.Qc2 Bb4 16.Ke2 Nd3 17.Qd3-/+; 12.Nbd2 Bb7 13.cd5 Bd5 14.Bb2 Qa8 15.dc5 Bc5 16.Bc4 Bb4 17.Bc3=+) 12...Nd5 13.Bd3 h6 14.Qc4 Bb7 15.0-0 Qe7 16.Rd1 Nb4 17.Be2=; C) 11...Qe7 12.Be2 (12.Nbd2 cd4 13.Nd4 Rd8 14.Be2 Nc5 15.0-0 e5 16.Nf5 Bf5 17.Qf5=; 12.dc5 Nc5 13.Ng5 g6 14.cd5 Nd5 15.Nf3 e5 16.Nbd2 Rd8 17.Bc4=+; 12.Bd3 cd4 13.Nd4 Nc5 14.cd5 Nd3 15.Qd3 Nd5 16.0-0 Nb4 17.Qc3=+) 12...cd4 13.Nd4 Rd8 14.0-0 Nb6 15.Nd2 Qc7 16.f4 e5 17.N4f3=; D) 11...cd4 12.Bd4 (12.Nd4 Nc5 13.Be2 Qa5 14.Bc3 Qc7 15.f4 Nce4 16.Bd3 Re8 17.Be4=+) 12...Qc7 13.Bc3 Ne4 14.cd5 ed5 15.Qb3 Nb6 16.Bd3 Re8 17.0-0=+.

11.Be2 Qb6 12.0-0 (12.d4 cd4 13.Bd4 Qc7 14.Bc3 Rd8 15.cd5 Nd5 16.Bd3 Nc3 17.Qc3-/+; 12.Nc3 Qc7 13.0-0 dc4 14.Bc4 Nb6 15.Be2 e5 16.Bb2 Rd8 17.Ra1=) 12...e5 13.cd5 Nd5 14.Bc4 Nb4 15.Qc3 Qd8 16.Rd1 Qf6 17.d4=.

11.Be2 Qe7 12.0-0 (12.d4 cd4 13.Nd4 Rd8 14.0-0 Nb6 15.Nd2 Qc7 16.f4 e5 17.N4f3=; 12.d3 e5 13.Nbd2 d4 14.e4 Nb6 15.0-0 Bg4 16.h3 Be6 17.Bb2=+) 12...Nb6 13.Be5 Nc4 14.Bc4 Be5 15.Ne5 Qd6 16.f4 dc4 17.Na3+=.

11.Be2 Re8 12.0-0 (12.d3 e5 13.Nbd2 d4 14.Bb2 Bc7 15.Nb3 de3 16.fe3 e4 17.Nh4=+) 12...e5 13.d3 dc4 14.dc4 Qc7 15.e4 Nb6 16.Rd1 Be6 17.Ng5=.

12.0-0 Bb7 13.d3 Qe7 14.Bb2 Ra8 15.Nbd2 e5 16.e4 de4 17.de4=.

12.Na3 Bb7 13.cd5 ed5 14.0-0 Qe7 15.Bb2 Ra8 16.Nh4 Qe4 17.Nf5=+.

12.d3 Bb7 13.0-0 Qe7 14.Nc3 Ra8 15.Rc1 e5 16.cd5 Nd5 17.Qb3=+.

12.cd5 ed5 13.0-0 Re8 14.Nc3 Qc7 15.Rc1 Ne5 16.Ne5 Re5 17.f4=.

12.h3 e5 13.cd5 Nd5 14.0-0 Bb7 15.Nc3 Nb4 (15...Qe7 16.Nd5 Bd5 17.e4=) 16.Qb2 (16.Qf5 g6 17.Qb1 Nf6=) 16...Qe7 17.Rd1 f6 (17...Ra8 18.d3=+) 18.Qb3 Kh8 19.d3 Ra8 20.Bb2 Nf8 21.Nd2 Qe6 22.Qe6 Ne6 23.Bg4 Nc7? (better 23...Nd3 24.Nc4 Nb2 25.Nb2 Nd4 26.ed4 cd4+=) 24.Nc4+- Rd8 25.Nb6 Be7 26.Be2 Kg8 (26...Rb8 27.d4 ed4 28.ed4 cd4 29.Rd4+/-) 27.Kf1 (27.Ra1 Nd3 28.Bd3 Rd3+-) 27...Kf7 28.Nc4 Ncd5 29.Ra1 (better 29.Ne4!?+-) 29...Nc3+= 30.Bc3 Nd3 31.Ra7 Be4 32.Nd2 (32.Ba5 Rd5 33.f3 Bf5+-) 32...Bf5 (better 32...Bg6+/-) 33.Ba5+- Rb8 (33...Rd6 34.b6 Nb4 35.Bb4 cb4 36.b7+-) 34.e4 Be6 (34...Be4 35.Ne4 c4 36.Nd6 Ke6 37.Nc4+-) 35.Bd3 1-0. Virani,Arish (1845) - Andes,Franklin Loyd (1745), KCF University Cup, 2021.

11.Be2 dc4 12.0-0 Nb6 13.Nb1 (13.Na4 Nfd7 (13...Nfd5 14.e4 Na4 15.Qa4 Nb6 16.Qc2 Qd7 17.Bc4 Nc4 18.Qc4 b6=; 13...Na4 14.Qa4 b6 15.Ne5 Qc7 16.f4 Bb7 17.Nc4 Ra8 18.Qc2 Nd7=) 14.Nb6 Nb6 15.Qc2 Bd7 16.d3 cd3 17.Bd3 h6 18.Be5 Be5=; 13.Qc2 e5 (13...Bd7 14.Rd1 Qc7 15.Na4 Bb5 16.Nb6 Qb6 17.Bf6 gf6 18.Qb2 Qc6-/+; 13...Re8 14.Na4 Na4 15.Qa4 e5 16.Bc4 Nd7 17.Qb3 Qf6 18.Qc2 Qh6=) 14.Ne4 Bf5 15.d3 cd3 16.Bd3 Be4 17.Be4 Ne4 18.Qe4 Qe7-/+) 13...Qe7 (13...Re8 14.Na3 e5 15.Nc4 Nc4 16.Bc4 Be6 17.d3 Bc4 18.dc4 Qc7=; 13...Bd7 14.Na3 Nfd5 15.Qb1 Nb4 16.Be5 Be5 17.Ne5 Qc7 18.Nec4 Ra8=) 14.Be5 Rd8 15.Qc2 Nfd5 16.Bd6 (16.Bc4 Nb4 17.Qc3 Nc4 18.Qc4 Be5+=) 16...Rd6 (16...Qd6 17.Na3 Nb4 18.Qc3 Qd7+=) 17.Bc4 Nb4 18.Qe4 (18.Qc3 Rd8=) 18...Nc4 (18...Rd8=) 19.Qc4 Rd8 20.Nc3 e5 21.Qe4 (21.d4 cd4 22.ed4 Be6=) 21...Nd3+= 22.Ra1 (22.Nd5!? Qe6 23.Qd3 Rd5 24.Qe4=) 22...f5-/+ 23.Nd5 fe4 24.Ne7 Kf7 25.Nc8 ef3 26.Nb6 Rd6 27.Nc4 Rg6 28.g3 Ke6 29.Ra4 Kd5 30.e4 Kd4?? (better is 30...Ke4 31.Ra7 Kd4-/+) 31.Na5= Nb4 32.Nc6 (worse is 32.Nb7 Rb6 33.Ra7 Nc2-/+) 32...Kc4 (32...bc6? 33.b6 Rd6 34.b7 Ke4 35.b8Q Rd2 36.Rb4 cb4 37.Qb4 Rd4 38.Qb3+-) 33.Ne5 Kb5 34.Ra3 Re6 35.Nf7 Re7 36.Rf3 Kc6 37.Ng5 b5 38.Rf7 (38.Kf1 c4=) 38...Rf7+= 39.Nf7 Nd3 40.Kf1 b4 41.Ke2 c4 42.f3 Kd7 43.Kd1 Ke7 44.Ng5 Nf2 45.Kc2 b3 46.Kb1 h6 47.Nh7 Nd3 48.f4 Kf7 49.e5 Nc5 50.f5 Kg8 51.e6 Ne4 (51...Kh7?? 52.e7 Ne4 53.e8Q+-) 0–1. marekt (2070) – glovio (2150), gameknot.com, 2014.

11.Be2 dc4 12.0-0 Ng4 A) 13.Qc2 Bc7 (13...Bb8 14.Ne4 f5 15.Ng3 Nb6 16.Bc4 Nc4 17.Qc4 Qd5 18.Rc1 Qc4=; 13...Qc7 14.h3 Nh2 15.Ng5 Nf6 16.Rc1 h6 17.Nge4 Ne4 18.Ne4 Be7+- 2.25) 14.d3 cd3 15.Bd3 f5 16.Rd1 Qe7 17.Bb2 b6 18.h3 Nge5+=; B) 13.h3 Ngf6 (13...Nge5 14.Ne5 Be5 15.Bc4 Nb6 16.Be2 Bc7 17.Qc2 f5 18.f4 Rf7=; 13...Nh6 14.Bc4 Nb6 15.d3 Nc4 16.dc4 Qb6 17.Ne4 Be7 18.Qe2 f6=) 14.Bc4 Nb6 15.d3 Qe7 16.Qc2 e5 17.Rd1 Rd8 18.Bb3 Be6=.

12.cd5 cd5 13.Nb5 Bb4 14.Bc3 Bc3 15.Nc3 Qa5 16.Qa4 Qa4 ½–½. jackhammer3000 (1890) – drpat23 (1905), gameknot.com, 2015.

12.cd5 cd5 13.Nb5 Qb6 14.Nd6 (14.Bf6 Nf6 (14...gf6 15.Nd6 Qd6 16.d4 e5 17.Nd2 Ba6 18.Ba6 Qa6 19.h3 Rb8=) 15.Nd6 Qd6 16.Qa1 Bb7 17.Be2 Ra8 18.Qd4 Ba6 19.d3 Nd7+=) 14...Qd6 15.Be2 (15.Bf6 Nf6 16.d4 Ba6 17.Bd3 Bd3 18.Qd3 Qb4 19.Qd2 Qb1+=) 15...Ba6 16.Bf6 (16.d3 Rc8 17.0-0 e5 18.Bb2 Rb8 19.Bc3 e4=) 16...Nf6 17.Qa1 (17.0-0 Ra8 18.Qa4 Nd7 19.Ba6 Ra6+=) 17...Ra8 (17...Be2 18.Ke2 Re8 19.Rc1 Qf8+=) 18.0-0 Qc6 (18...Ne4 19.d3 Rc8=) 19.Ba6 (19.Ne5 Qb7=) 19...Qa6 20.Qa6 Ra6 21.Rc1 g6 22.h3 Ra3 23.Rc2 Ne4 24.Kf1 Kg7 25.g4 Kf6 26.h4 h6 27.d4 g5 28.hg5 ½–½. forsetinn (2210) – glovio (2125), gameknot.com, 2014.

12.cd5 cd5 13.Nb5 Bb8 A) 14.Nbd4 Bb7 (14...Bd6 15.Nb5 Bb8 16.Be2 e5 17.0-0 Re8 18.Bc3 Re6 19.Ng5 Ra6=; 14...Qb6 15.Qb3 Qd6 16.Qb5 Qc7 17.Qc6 Qa7 18.Bb2 Bb7 19.Qb5 Bd6+=) 15.Bb5 e5 16.Nf5 Qb6 17.Qb1 Ba6 18.Bd3 Bd3 19.Qb6 Nb6-+; B) 14.Be2 e5 (14...Re8 15.0-0 e5 16.Bc3 Re6 17.d4 e4 18.Ng5 Rc6 19.Qd2 Nb6+=; 14...Qe7 15.Bb2 Re8 16.Ba3 Qd8 17.0-0 e5 18.d4 e4 19.Nd2 Ba6=) 15.0-0 Re8 16.Bc3 Re6 17.d4 e4 18.Ng5 Rc6 19.Qd2 Nb6+=.

12.cd5 cd5 13.Be2 Qa5 14.Qa4 Qa4 15.Na4 Bb7 16.0-0 Ra8 17.Nc3 Ba6 18.Ba6 Ra6 19.Rb1 Ra8 20.Kf1 Be7 21.Ke2 g6 22.Nd4 Ra6 23.f4 h5 24.Bb2 Rb6 25.d3 Bc5 26.Na4 Rb7 27.Rc1 (worse is 27.Nc5 Nc5 28.Kd2 Ng4-/+) 27...Bd6 28.Rc6 Bf8 29.Ra6 Kg7 30.Nc6 Nc5 31.Rb6 Rc7 32.Nc5 Bc5 33.Ra6 Rb7 34.Be5 Bb6 35.g3 d4? (35...Bc5 36.h3 Be7 37.Ne7 Re7 38.g4+-) 36.h3 de3+/– 37.Na5 Ba5 38.Ra5 Rb4 39.Kf3 e2? 40.Ke2 Rb7 41.g4 hg4 42.hg4 Rb6 43.g5 (43.g5 Kf8 44.Bf6+-) 1–0. Degterev,Pavel (2175) – Cuomo,Salvatore (1835), IECG, 2008.

12.cd5 ed5 13.Be2= Nc5 14.0-0 Bf5 15.Nd4 Bd7 16.Qc2 Qc7 17.h3 Rb8 (17...Ra8 18.Rb1=) 18.Rb1 Rb1 19.Qb1 (19.Nb1 Nfe4=) 19...h6 (19...Bh2 20.Kh1=) 20.Nf3 Qa5 21.Bb2 Nce4 (21...Nfe4 22.Qc1=) 22.Qc2 Ng5 23.Ng5 hg5 24.Qa4 Qd8 25.d4 Qb8 (25...Bb8 26.Kf1=) 26.Ba3+= c5 ½–½. Yarmolyuk,Yury (2130) – Ould Ahmed,Samy (2070), RH–2007–0-00101, 2008.

12.Be2 Qa5 13.cd5 cd5 14.Qa4 Qa4 15.Na4 Bb7 16.0-0 Rb8 17.Rb1 (17.Rc1 A) 17...Ra8 18.Nc3 (18.Bb5 e5 19.d4 e4 20.Ne5 Rc8 21.Rb1 Nb8 22.Nc3 Nc6 23.Bf1=; 18.Bf6 Nf6 19.Nc3 Ne4 20.Nb5 Bb4 21.d3 Ra2 22.de4 Re2 23.ed5=) 18...Ne4 19.Nb5 Bb4 20.Bd4 Ra2 21.Rc7 Ndc5 22.Bf1 Ba6 23.d3+=; B) 17...e5 18.Bb2 (18.Nc3 e4 19.Nd4 Be5 20.Nc2 Rc8 21.f4 Bd6 22.g4 Nc5 23.Nd4=; 18.d4 e4 19.Ne5 Rc8 20.Rc8 Bc8 21.Nd7 Nd7 22.Bb5 Kf8 23.Bc6=) 18...e4 19.Nd4 Ra8 20.Bb5 Rc8 21.Rc8 Bc8 22.d3 h5 23.f3=) 17...Bc6 (17...e5 18.Nc3 (18.d4 e4 19.Ne5 Ba6 20.Rb8 Nb8 21.Bd1 Nbd7 22.Bb3 Bb7 23.Nd7=; 18.d3 Kf8 19.Nb6 Ke7 20.d4 e4 21.Nd7 Nd7 22.Ne5 f6 23.Nd7+=) 18...Kf8 19.Nb5 Ba6 20.d4 e4 21.Ne5 Bb5 22.Rb5 Ra8 23.Bb2=) 18.Rb8 (18.Nc3 Rb1 19.Nb1 e5 20.d4 e4 21.Ne5 Ba4 22.Bb2 Bc2 23.Na3=; 18.Nb2 e5 19.Rc1 Bb7 20.d4 e4 21.Nh4 g6 22.Na4 Rc8 23.Rc8+=) 18...Nb8 (18...Bb8 19.Bf6 Nf6 20.Nc5 Bd6 21.d4 Ne4 22.Ne4 de4 23.Ne5=) 19.Nc3 (19.Nb6 Nbd7 20.Nd4 Bb7 21.Nd7 Nd7 22.f4 Nb6 23.Kf2=) 19...Ne4 (19...e5 20.Nb5 Bb5 21.Bb5 Nbd7 22.d4 e4 23.Ne5=) 20.Ne4 (20.d4 Nc3 21.Bc3 Bb7 22.Ne5 f6 23.Nd3=) 20...de4 21.Nd4 (21.Ne5 Bd5 22.d4 f6 23.Nc4=) 21...Bd5 22.d3 ed3 (22...Bc5 23.de4=) 23.Bd3 Nd7 24.e4 Bb7 25.Bb5 Nb6 26.f3 e5 27.Nc6 f6 28.Kf2 Bc5 29.Ke2 Bc8 30.Bc3 Bd7 31.Ba5 g6 32.Kd3 Kg7 33.h3 h5 34.Na7 Be6 35.Bd2 Kf8 36.Nc6 Bd7 37.Ba5 ½–½. forsetinn (2170) – re074 (1985), gameknot.com, 2013.

11.Bc3 Bc3 12.Nc3 dc4 13.Bc4 Nb6 14.Bd3 h6 15.0-0 Nbd5 16.Nd5 ed5 17.Qc2 Qd6 18.Rc1 Ne8 19.Qa4 Qb6 20.Nd2 (20.Qb4 g6+/–) 20...Nd6 21.Rc5 Be6 22.Nb1 Rc8 23.Nc3 c6 24.f3 (24.h3 Nb5 25.Bb5 cb5 26.Rc8 Bc8+=) 24...g6 (24...Qd8 25.bc6 b6 26.Rd5 Bd5 27.Nd5+/–) 25.Kf2 (25.bc6 bc6 26.Ba6 Rc7+=) 25...Kg7 26.Qc2 Ra8 27.bc6 bc6 28.Ne2 Bd7 29.Nf4 Ra1 30.Bg6 Bf5?? (30...fg6 31.Qg6 Double attack) 31.Bf5+- Nf5 (31...Qb4 32.Kg3 Qe1 33.Kh3 Qe3 34.Nh5 Kf8 35.Rc6+-) 32.Qf5 Qb4 (32...Ra2 33.Kg3 Qc7+-) 33.Nh5 Kf8 (33...Kg8 34.Qg4 Kf8 35.Qc8 Ke7 36.Qc7 Ke8 37.Qc6 Ke7 38.Qc7 Ke8 39.Qe5 Kd8 40.Qd6 Ke8 41.Nf6) 34.Qc8 Ke7 35.Qc7 Ke6 (35...Ke8 36.Qc6 Ke7 37.Qc7 Ke8 38.Qe5 Kd8 39.Qd6 Ke8 40.Nf6) 36.Rc6 (36.Nf4 Kf6 37.Qe5) 36...Kf5 (36...Qd6 37.Qd6 Kf5 38.Qd5) 37.Qf4 1–0. Sieber,Martin – Bochenek,Andrzej, Orlova op, 2005.

11.Bc3 Qe7 12.Qb3+= Bc3 13.Nc3 dc4 14.Bc4 (14.Qc4 Qd6+=) 14...b6 (14...e5 15.0-0=) 15.0-0+= Bb7 16.Ra1 (16.Be2 Ra8+=) 16...Ra8 (16...Bf3 17.gf3 e5 18.Ne2=) 17.Ra8+= Ba8 18.Qa4 (18.Nd2 e5+=) 18...Qd8 (18...Bf3 19.gf3 Qd8 20.f4+=) 19.Nd2 (19.Be2 Ne4 20.Qc2 Ndf6+=) 19...Qc8 20.f3 (20.e4 c5 21.bc6 Bc6+=) 20...c6 21.e4 e5 (better is 21...c5=) 22.d5 (better is 22.Ne2!?+=) 22...cd5-/+ 23.ed5 Nd5 24.Kf1? (24.Bd5 Qc5) 24...Nc3-+ 25.Qb3 Nb5 26.Qb5 Qc6 27.Qb3 Qf6 28.Bd5 Nc5 29.Qb5-/+ Qd8 30.Ba8 Qa8 31.Qb6 Qa6 32.Qa6 Na6 33.Ke2 Nc5 34.Ke3 f5 35.Nc4 Nd7 36.g4 fg4 37.fg4 Kf7 38.Nd6 Ke6 39.Ne8 g6 40.g5 Kf5-+ 41.h4 Nb6 42.Nf6 h6-+ 43.Ne4 hg5 44.Ng5 Nc4 45.Kf3 Nd6 46.Nh3 Ne4 47.Ke3 Nf6 48.Ng5 e4 49.Nh3 Ng4 50.Ke2 Nh6 51.Kf2 Ng4?? 52.Kg3?? Nf6-+ 53.Ng5 Ke5 54.Nh3 Kf5?? 55.Ng5 Nh5 56.Kf2 Kf4 57.Ne6 Ke5 58.Ng5 Nf4 59.Kg3 e3 60.Nf7 Ke4 61.Ng5 Kf5 62.Nf7 e2 63.Kf2 Ke4 64.Ng5 Kd3 65.Nf3 Nh3 66.Kg3? Ke3 67.Ne1 Nf4 68.Nf3 Nd3 69.Kg4 Kf2 (70.Nd4 e1Q-+) 0–1. Roczniak,Jan – Przewoznik,E, Poland (year?).

11.Bc3 Be7 12.c5 =.

11.Nbd2 c5 A) 12.bc6 A1) 12...Bd2 13.Nd2 (13.Qd2 Ne4 14.Qa2 bc6 15.Bd3 Bb7 16.0-0 Qc7 17.Qc2) 13...bc6 14.cd5 cd5 15.Bc3 Bb7 16.Bb4 Re8 17.Qb3; A2) 12...Nb8 13.cd5 (13.Bd3 Nc6 14.0-0 Qc7 15.Qc2 Bd7 16.cd5 ed5 17.Ne5) 13...Nd5 14.cb7 Bb7 15.Bd3 Nc6 16.0-0 Qc7 17.Ne4; A3) 12...bc6 13.Bd3 (13.Be2 Qa5 14.0-0 Ne4 15.Ne4 de4 16.Ne5 Ne5 17.de5) 13...Ba6 14.0-0 Bd2 15.Nd2 Nb6 16.Qb3 dc4 17.Nc4; B) 12.Bd3 cd4 (12...dc4 13.Bc4 cd4 14.ed4 Nb6 15.Bd3 Qd5 16.0-0 Bd7 17.Qb3) 13.ed4 (13.Bd4 e5 14.Ne5 Ne5 15.Be5 dc4 16.Bc2 Qd5 17.Bf6) 13...dc4 14.Bc4 Nb6 15.Bd3 Nbd5 16.0-0 Nf4 17.Bc4; C) 12.Be2 C1) 12...cd4 13.ed4 (13.0-0 de3 14.fe3 Qc7 15.Qb3 Bd6 16.cd5 ed5 17.Bd4) 13...dc4 14.Bc4 Nb6 15.Bd3 Nbd5 16.0-0 Nf4 17.Bc4; C2) 12...Qc7 13.0-0 (13.cd5 ed5 14.dc5 Nc5 15.Bf6 gf6 16.0-0 Ne4 17.Ne4) 13...cd4 14.ed4 dc4 15.Nc4 Nd5 16.Qb1 f6 17.Rc1; C3) 12...dc4 13.Bc4 (13.Qc2 cd4 14.Bd4 e5 15.Bc3 Bc3 16.Qc3 e4 17.Nd4) 13...cd4 14.ed4 Qa5 15.0-0 g6 16.Bd3 Nd5 17.Ne4; D) 12.Bb2 D1) 12...Ne4 13.Bd3 (13.Be2 cd4 14.0-0 Nc3 15.Qe1 de3 16.fe3 Nc5 17.Nb1) 13...cd4 14.Be4 de4 15.Nd4 Nc5 16.0-0 e5 17.N4b3; D2) 12...Qc7 13.Qc2 (13.cd5 cd4 14.Bd4 e5 15.Bb2 Nd5 16.Be2 e4 17.Ng5) 13...cd4 14.Bd4 e5 15.Bc3 Bc3 16.Qc3 e4 17.Nd4; D3) 12...cd4 13.ed4 (13.Bd4 e5 14.Bb2 Nc5 15.Qc2 Nfe4 16.cd5 Bf5 17.Be2) 13...Ne4 14.Bd3 Nd2 15.Nd2 dc4 16.Bc4 Qa5 17.Bd3; E) 12.cd5 E1) 12...ed5 13.dc5 (13.Be2 Qa5 14.0-0 c4 15.Qc2 Nb6 16.h3 g6 17.e4) 13...Nc5 14.Be2 Bf5 15.0-0 Qe7 16.Nb3 Nce4 17.Bf6; E2) 12...cd4 13.de6 (13.Bd4 e5 14.Bb2 Nd5 15.Qc2 Nc5 16.Be5 Re8 17.Bc4) 13...de3 14.ef7 Rf7 15.fe3 Nb6 16.Qb1 Bc5 17.Bd4; E3) 12...Ne4 13.Bd3 (13.Bc4 Qa5 14.Ke2 ed5 15.Bd5 Nd2 16.Nd2 Nb6 17.Be4) 13...ed5 14.0-0= Nd2 15.Nd2 g6 16.dc5 Nc5 17.Be2.

11.Nbd2 c6 A) 12.Qa4 A1) 12...c5 13.cd5 (13.dc5 Bc5 14.cd5 Nd5 15.Be2 N7f6 16.0-0 Bd7 17.Be5) 13...Nd5 14.Bd3 c4 15.Bc4 N7b6 16.Qc2 Nc4 17.Qc4; A2) 12...Qa5 13.Qa5 Ba5 14.Bd3 dc4 15.Bc4 Nb6 16.Bd3 cb5 17.Bb5; A3) 12...Ba5 13.Bd3 (13.bc6 bc6 14.Bd3 Ne4 15.Qc6 Nd2 16.Nd2 dc4 17.Qc4) 13...e5 14.de5 Nc5 15.Qc2 Nfe4 16.cd5 Bf5 17.Be4; B) 12.bc6 B1) 12...Bd2 13.Nd2 (13.Qd2 bc6 14.Bc3 Ne4 15.Qc2 Ba6 16.Bd3 f5 17.Nd2) 13...bc6 14.cd5 cd5 15.Bc3 Bb7 16.Bb4 Re8 17.Qb3; B2) 12...bc6 13.Bd3 (13.Be2 Qa5 14.0-0 Ne4 15.Ne4 de4 16.Ne5 Ne5 17.de5) 13...Ba6 14.0-0 Bd2 15.Nd2 Nb6 16.Qb3 dc4 17.Nc4; C) 12.Be2 C1) 12...Ne4 13.0-0 (13.cd5 Qa5 14.bc6 Ndf6 15.Bb2 ed5 16.c7 Bf5 17.h3) 13...cb5 14.cb5 Ndf6 15.Ne4 Ne4 16.Bb2 f6 17.Qb3; C2) 12...dc4 13.Bc4 (13.bc6 c3 14.Bc3 Bc3 15.cd7 Bd7 16.0-0 Qe7 17.Qb3) 13...cb5 14.Bb5 Qa5 15.Bd3 b5 16.0-0 Bb7 17.Qe2; C3) 12...cb5 13.cb5 (13.cd5 ed5 14.0-0 Qa5 15.Bd3 b6 16.Qe2 Ba6 17.Bb2) 13...Ne4 14.0-0 Ndf6 15.Ne4 Ne4 16.Qa4 Bd6 17.Bb2; D) 12.cd5 D1) 12...ed5 13.Qa4 (13.Bd3 c5 14.Qb1 Qa5 15.dc5 Ne4 16.0-0 Bd2 17.Be4) 13...Qe7 14.bc6 bc6 15.Qc6 Ne4 16.Bd3 Ndf6 17.Qc2; D2) 12...Nd5 13.bc6 (13.Bd3 cb5 14.0-0 Qa5 15.Qe2 Bc3 16.Nb3 Qb4 17.Qc2) 13...bc6 14.Bd3 Bb7 15.0-0 Qe7 16.Qc2 g6 17.Rb1; D3) 12...cd5 13.Bd3 (13.Be2 Ne4 14.0-0 Ndf6 15.Bb2 Bd7 16.Ne4 Ne4 17.Qa4) 13...Ne4 14.0-0 Ndf6 15.Qc2 Nd2 16.Nd2 Bd7 17.Bc3.

11.Nbd2 Qe7 A) 12.Be2 A1) 12...b6 13.0-0 (13.Qc2 Bb7 14.0-0 Ra8 15.Bb2 dc4 16.Bc4 h6 17.e4) 13...Bb7 14.Qc2 Ra8 15.Bb2 g6 16.Ra1 Ra1 17.Ba1; A2) 12...Rd8 13.0-0 (13.Qc2 b6 14.0-0 Bb7 15.Bd3 Bd6 16.Bc3 Ra8 17.Ne5) 13...Ne4 14.Qc2 Nd2 15.Nd2 Nf6 16.Bb2 Bd7 17.Ra1; A3) 12...dc4 13.Bc4 (13.Qc2 Nb6 14.0-0 Bd7 15.Nc4 Bb5 16.Nb6 Be2 17.Qe2) 13...Nb6 14.Be2 Ne4 15.0-0 Nd2 16.Nd2 Bd7 17.Qc2; B) 12.Qc2 B1) 12...Ne4 13.Bd3 (13.Be2 Nd2 14.Nd2 dc4 15.Bc4 Nf6 16.0-0 Bd7 17.Nf3) 13...Nd2 14.Nd2 dc4 15.Qc4 Nf6 16.Bc3 Bc3 17.Qc3; B2) 12...h6 13.Bd3 (13.Be2 b6 14.0-0 Bb7 15.cd5 Nd5 16.Nc4 Ra8 17.Bb2) 13...dc4 14.Bc4 Nb6 15.Bd3 Nbd5 16.0-0 Bd7 17.Ne5; B3) 12...g6 13.Bc3 (13.Be2 b6 14.0-0 Bb7 15.Bb2 Ra8 16.Ra1 Ra1 17.Ba1) 13...Bc3 14.Qc3 Ne4 15.Qc2 Nd2 16.Nd2 e5 17.de5; C) 12.Bb2 C1) 12...g6 13.cd5 (13.Qc2 Rd8 14.Be2 Ne4 15.0-0 Nd2 16.Nd2 Nf6 17.Ra1) 13...ed5 14.Bd3 Ne4 15.0-0 Ndf6 16.Qc2 Bf5 17.Ra1; C2) 12...c5 13.bc6 (13.Bd3 cd4 14.ed4 dc4 15.Bc4 b6 16.0-0 Bb7 17.Qe2) 13...bc6 14.Bd3 c5 15.0-0 Bb7 16.Qe2 Ra8 17.Rb1; C3) 12...Ne4 13.Bd3 (13.Be2 Ndf6 14.0-0 Nd2 15.Nd2 Bd7 16.Qc2 Ra8 17.Nf3) 13...Ndf6 14.0-0 Bd7 15.Qc2 Nd2 16.Nd2 dc4 17.Bc4; D) 12.Bd3 D1) 12...Ne4 13.Qc2 (13.0-0 f5 14.Bb2 Ndf6 15.Qc2 Bd7 16.Be4 fe4 17.Ne5) 13...Nd2 14.Nd2 dc4 15.Qc4 Nb6 16.Qc2 g6 17.0-0; D2) 12...Nb6 13.0-0 (13.c5 Nc4 14.Qb1 Ba5 15.Bc4 dc4 16.0-0 Bd2 17.Nd2) 13...dc4 14.Nc4 Nc4 15.Bc4 Qd6 16.Bb2 Bd7 17.Ne5; D3) 12...dc4 13.Bc4 Nb6 14.Be2 Bd7 15.0-0 Qe8 16.Qc2 Bb5 17.Bb5.

11.Nbd2 h6 A) 12.cd5 A1) 12...ed5 13.Bd3 (13.Qb3 Qe7 14.Bc3 Bc3 15.Qc3 Nb6 16.Bd3 Ne4 17.Be4) 13...Ne4 14.0-0 Ndf6 15.Qc2 Re8 16.Bb2 Qd6 17.Ra1; A2) 12...Nb6 13.de6 (13.Bd3 Qd5 14.0-0 Bd7 15.Qb3 Qd6 16.e4 Nh5 17.g3) 13...Be6 14.Bd3 Bc4 15.Qc2 Bd3 16.Qd3 Bd2 17.Nd2; A3) 12...Nd5 13.Bd3 (13.e4 Nf4 14.g3 Ng6 15.Be2 Nb6 16.0-0 Qd6 17.Qc2) 13...N7b6 14.0-0 Bd7 15.Ne5 Qe7 16.Qc2 Bd6 17.Be2; B) 12.c5 B1) 12...e5 13.Qb3 (13.Qa4 Bd2 14.Nd2 Qe7 15.Qc2 ed4 16.Bd4 Ne5 17.Nf3) 13...Bd2 14.Nd2 ed4 15.Bd4 Qe7 16.Qc3 Re8 17.Bd3; B2) 12...Ba5 13.Qa4 (13.Be2 Ne4 14.0-0 Ndf6 15.Ne4 Ne4 16.Bd3 b6 17.Qc2) 13...c6 14.b6 Bd2 15.Nd2 e5 16.Bd3 ed4 17.Bd4; B3) 12...Ne4 13.Bd3 (13.Be2 b6 14.cb6 cb6 15.0-0 Nd2 16.Nd2 Bb7 17.Qc2) 13...b6 14.cb6 cb6 15.Qb1 Qe7 16.Be4 de4 17.Qe4; C) 12.Qc2 C1) 12...Qe7 13.Bc3 (13.Bd3 dc4 14.Bc4 Nb6 15.Be2 Nbd5 16.0-0 Bd7 17.Ne5) 13...Bc3 14.Qc3 Ne4 15.Ne4 de4 16.Nd2 Nf6 17.Be2; C2) 12...c5 13.Bd3 (13.Be2 cd4 14.Bd4 dc4 15.Bc4 e5 16.Bc3 Bc3 17.Qc3) 13...b6 14.0-0 Bb7 15.Bb2 cd4 16.ed4 Qc7 17.Ra1; C3) 12...c6 13.Bc3 (13.bc6 Qa5 14.Bb2 bc6 15.Bd3 Ne4 16.Ke2 f5 17.Ra1) 13...Bc3 14.Qc3 Ne4 15.Ne4 de4 16.Nd2 Nf6 17.bc6; D) 12.Qb3 D1) 12...Ba5 13.Bc3 (13.cd5 Nd5 14.Bd3 Nb4 15.Be2 Nd5 16.0-0 N7f6 17.Bb2) 13...Bc3 14.Qc3 Ne4 15.Qb4 c5 16.bc6 bc6 17.cd5; D2) 12...c5 13.bc6 (13.Bc3 Bc3 14.Qc3 cd4 15.ed4 Ne4 16.Ne4 de4 17.Nd2) 13...Qa5 14.cd7 Bd2 15.Nd2 Qa1 16.Qd1 Qd1 17.Kd1 Bd7; D3) 12...Qe7 13.c5 (13.Bc3 Bc3 14.Qc3 Ne4 15.Qc2 Nd2 16.Kd2 e5 17.de5) 13...Ba5 14.Qa2 Bb4 15.Qb3 Ba5 16.Qa2 Bb4 17.Qb3.

12.Qa4 A) 12...Bd2 13.Nd2 Nd2 14.Kd2 Qh4 15.g3 Qe4 16.Rg1 Nb6 17.Qc2; B) 12...Nd2 13.Qb4 (13.Nd2 Bd2 14.Kd2 Qh4 15.Ke1 Nb6 16.Qc2 dc4 17.Bb2) 13...Nf1 14.Rf1 Nb6 15.c5 Nc4 16.Nd2 Nd2 17.Kd2; C) 12...Qe7 13.c5 (13.Bd3 Nb6 14.Qc2 Nc4 15.Bc4 Nd2 16.Nd2 dc4 17.Qc4) 13...Bd2 14.Nd2 Nd2 15.Kd2 Qh4 16.g3 Qe4 17.Rg1.

12.Bd3 Nb6 13.0-0 Nd2 14.Nd2 Bd2 15.c5 Nc4 16.Bc4 Be3 17.fe3.

12.Bd3 Nb6 13.Qb3 Bd2 14.Nd2 Nd2 15.Kd2 Qg5 16.g3 dc4 17.Bc4.

12.Bd3 Nb6 13.c5 Nc4 14.Bc4 dc4 15.0-0 Nd2 16.Nd2 Bd7 17.Nc4.

12.Bd3 Nb6 13.c5 Nc4 14.Bc4 Nd2 15.Nd2 dc4 16.0-0 Bd7 17.Nc4 Bb5 18.Qb3 Qd5 19.Qb4 Qc4 20.Qc4 Bc4 21.Rb1 Ra8 22.Bc3 Ra7 23.Rb4 Bd5 (23...Bd3 24.f3=) 24.Rb5 g5 (24...Ra6 25.f3=) 25.Ra5 Ra6 26.Ra6 (26.f3 f5=) 26...ba6 27.f3 (27.Ba5 c6=) 27...f5 28.Kf2 (28.Ba5 c6=) 28...Kf7 29.Ba5 c6 30.Bc7 ½–½. Bendig,Frank (2375) – Kupec,Jan (1995), CiF–12.Superturnier, 2010.

12.Bd3 Nd2 13.Nd2 dc4 14.Bc4 Nb6 15.Bd3 Nd5 16.0-0 Bd7 17.Nf3.

12.Bd3 Nd2 13.Nd2 dc4 14.Bc4 Nb6 15.Bd3 Bd7 16.0-0 f5 17.Nf3.

12.Bd3 Qe7 13.0-0 (13.Qc2 Nd2 14.Nd2 dc4 15.Bc4 Nf6 16.0-0 Bd7 17.Nf3) 13...Ndf6 14.Qc2 Nd2 15.Nd2 Bd7 16.Nf3 g6 17.Ne5.

12.Bd3 Ndf6 13.0-0 (13.Qa4 Qe7 14.c5 Bd2 15.Nd2 Nd2 16.Kd2 Ne4 17.Be4) 13...b6 14.Qc2 Bb7 15.cd5 ed5 16.Rc1 Bd6 17.Bb2.

12.cd5 A) 12...Ndf6 13.Bd3 (13.d6 cd6 14.Bd3 Qa5 15.Ke2 d5 16.Nb3 Qa2 17.Qc2) 13...ed5 14.0-0 Qd6 15.Qc2 Re8 16.Be4 de4 17.Nc4; B) 12...ed5 13.Be2 (13.Bd3 Ndf6 14.0-0 Qe7 15.Qc2 Bf5 16.Ne4 de4 17.Bc4) 13...Ndf6 14.0-0 Bf5 15.Ne4 Ne4 16.Qa4 Qd6 17.Bb2; C) 12...Qf6 13.Bd3 Bd2 14.Kf1 ed5 15.Be4 de4 16.Nd2 Qf5 17.b6.

12.Be2 Nb6 13.0-0 Nd2 14.Nd2 Bd2 15.Qd2 dc4 (15...Nc4 16.Bc4 dc4 17.Qb4=) 16.Rc1 Qd5 17.Qb4 c4 draws heavy fire 17...Bd7 18.Bc4 Nc4 19.Qc4 Rc8 (19...Qc4 20.Rc4 Rc8 21.b6=) 20.Qd5 ed5 21.Rc5 (better 21.b6!? cb6 22.Rc8 Bc8 23.Bc3=) 21...b6-/+ 22.Rd5 (22.Rc3 Bb5 23.Bb2 Bc4-/+) 22...Be6 23.Re5 Ra8 24.Bc3 Ra3 25.Be1 Ra1 26.Kf1?? (better 26.f4 Re1 27.Kf2-+) 26…Bc4 (26...Bc4 27.Kg1 Re1) 0–1. DEFFM – GuestXFRS, freechess.org, 2018.

12.Be2 Nb6 13.Qb3 Bd2 14.Nd2 Nd2 15.Kd2 Qg5 16.g3 dc4 17.Bc4.

12.Be2 Nb6 13.c5 Nd7=.

12.Be2 dc4 13.0-0 Nd2 14.Nd2 Bd2 15.Qd2 Nb6 16.Rc1 Qd5 17.Qb4.

12.Be2 dc4 13.0-0 Nd2 14.Nd2 Bd2 15.Qd2 Nb6 16.Qc2 Qd5 17.Rb1.

12.Be2 dc4 13.Bc4 Nb6 14.Bd3 f5 15.0-0 Nd2 16.Nd2 Bd7 17.Nf3.

12.Be2 c6 13.0-0 cb5 14.cb5 Nd2 15.Nd2 Nf6 16.Nf3 Ne4 17.Qc2 Bd7 18.Ne5 Be8 19.Rb1 Be7 (19...f6 20.Rb4 fe5 21.f3=) 20.f3+= Nd6 The isolani on b5 becomes a target 21.Bd3 Kh8 22.Bc3 (worse 22.Bh7 Nb5 (22...Bb5?! 23.Bd3 Bd3 24.Qd3+=) 23.Bb2 g6 24.Bg6 fg6 25.Ng6 Bg6 26.Qg6 Rf6-/+) 22...f6 23.Ng4 Bh5 24.Rc1 (24.Nf2 Qd7=) 24...Qd7= 25.Bd2 Rc8 26.Qb3 Bg6 27.Rc8 Qc8 28.Bg6 hg6 29.Qd3 Nc4 30.Nf2 Qd7 31.Bc1 g5 32.e4 Qb5 33.f4 gf4 34.Qh3 Kg8 35.Qe6 Kf8 36.ed5 Ne3 37.Qc8 Kf7 38.Qe6 Kg6 39.Qe4 f5 40.Qd3 Qb4 (40...Qa5!? 41.Qe2 Qa1-/+ (41...Nd5?! 42.Qe6 Bf6 43.Qe8 Kh6 44.Qh8 Kg5 45.h4 Kg6 46.Qe8 Kh7 47.Qh5 Kg8 48.Qe8 Kh7 49.Qh5 Kg8 50.Qe8 Kh7=)) 41.Bd2= Qa4 42.Be3 fe3 43.Nd1 e2 44.Qe2 Qd4 45.Kf1 Bc5 (45...Qd5 46.Qe7 Qd1 47.Kf2 Qd4 48.Kf3 Qg4 49.Kf2 Qf4 50.Kg1-+) 46.Qf3 Qg1 47.Ke2 Qh2 48.Nc3 Qe5 49.Kd3 Qd4 50.Kc2 Bb4 51.Ne2 Qc4 52.Kd1 Kf6 53.Ng3 g6 54.Ne2 Bd6 55.Kd2 Qa2 56.Kd1 Qa4 (56...Qb1 57.Nc1-+) 57.Ke1 (57.Kd2 Bb4 58.Kc1 Qa1 59.Kc2 Qa2 60.Kc1 Ba3 61.Kd1 Qb1 62.Kd2 Bb4 63.Ke3 Qd1-+) 57...Qa1 58.Kd2 Bb4 59.Kc2 Qa2 60.Kc1 Ba3 61.Kd1 Qb1 62.Kd2 Bb4 (62...Bb4 63.Ke3 Qd1-+) 0–1. Rooijen Van,Peter (1675) – Kalyoncuoglu,Ozgur (2075), CP–2011–P–00022, 2011.

12.Be2 Nd2 13.Nd2 Nb6 (13...dc4 14.Bc4 (14.0-0 Bd2 15.Qd2 Nb6 16.Rc1 Qd5 17.Qb4) 14...Nf6 (14...Nb6 15.Bd3 Qd5 16.Qc2 Bd2 17.Kd2) 15.0-0= Qd6 16.Nf3 Nd5 17.e4; 13...Nf6 14.0-0 Qe7 15.Qc2 Bd7 16.Nf3 dc4 17.Qc4) 14.c5+= (14.0-0 Bd2 15.Qd2 dc4 16.Qb4 Qd5 17.Rc1) 14...Nc4 15.Bc4 dc4 16.0-0 Bd7 17.Nc4 Bb5 18.Qb3 Qd5 19.Qb4 Qc4 (19...Bc4? 20.e4 Qe4 21.Qc4+-) 20.Qc4 (20.Rb1 Ra8 21.Qc4 Bc4=) 20…Bc4 ½–½. Buczinski,Henryk (2180) – Pintonello,Gilberto (2020), SA–2010-0-00171, 2010.

12.Be2 Qe7 13.0-0 Nd2 14.Nd2 Nf6 15.Nf3 b6 16.Qc2 Bb7 17.Ne5.

12.Be2 Ndf6 13.0-0 Nd2 14.Nd2 Qe7 15.Nf3 Bd7 16.Qa4 dc4 17.Ne5.

11.Nc3 dc4 12.Qc2 Bb7 13.Bc4 c5 14.bc6 Bc6 =.

11.Bd3 Bb7 12.0-0 dc4 13.Bc4 Bd5 14.Bd5 ed5 15.Nc3 =.

11.Bd3 Bb7 12.0-0 dc4 13.Bc4 Qe7 14.Ne5 =.

11.Bd3 Bb7 12.0-0 Ne4 13.Qc2 Nef6 =.

11.Bd3 Bb7 12.0-0 Ne4 13.Be4 de4=+ 14.Ne5 Be5 (14...Qh4 15.Qe2=+) 15.de5= Nc5 16.Bd4 Nd3 17.Qg4 Qa8 18.Nc3 Kh8 19.h4 (19.Rd1 Nb2 20.Rc1 Nd3=) 19...Rg8 20.Qh5 Rf8 21.Qe2 (21.Rd1 Nb2 22.Rd2 Nc4=+) 21...f5 22.f4 (22.Qh5 Qd8=) 22...Qa3 (22...Qa5 23.Rd1=+) 23.Qa2= Qa2 24.Na2 Ra8 25.Nc3 Kg8 26.g4 (26.h5 Ra3=) 26...g6 (26...fg4!? 27.Kg2 Kf7=+) 27.gf5= gf5 (Black gets the initiative) 28.Ne2 (28.Kh2 Ra3=) 28...Kg7 (28...Ra4!?-/+) 29.Ra1 Kh6 30.Ra8 Ba8 31.Kf1 (31.Kg2 Bb7=) 31...Kh5=+ 32.Ng3 (32.Bc3 Bb7=+ (< 32...Kh4 33.Nd4=)) 32...Kg4-/+ (32...Kh4?! 33.Nf5 ef5 34.e6=) 33.Kg2 (33.Nh1 Kh4 34.Ke2 Nc1 35.Kd1 Nb3-/+) 33...Ne1 (34.Kf2 Nf3=+; 33...h5 34.Ne2-/+) 0–1. Tuchtenhagen,Harald (1930) – Sogaard,Verner (2360), corr ICCF WT–M–GT–246, 1988.

11.Bd3 Ne4 12.Qc2 Ndf6 =.

11.Bd3 Ne4 12.cd5 ed5 13.0-0 (13.Nc3 Bb7=) 13...Bb7 14.Qc2 Qe7 15.Bb2 g5 (15...Ra8 16.Nc3=) 16.Nc3 (16.Rc1 Rc8+=) 16...Ra8 (16...g4 17.Nd2 f5 18.Nb3+=) 17.Nd2 f5 18.Rc1 Qe6 (18...Ndf6 19.Nf3+=) 19.Nf1 g4 (19...Nb8 20.Ng3 Qh6 A) < 21.Be4 A1) < 21...de4 22.Qb3 (22.Nf5 Qh2 23.Kf1 Qh1 24.Ke2 Qg2 25.Qb3 Kf8+-) 22...Kf8 23.Na4+/–; A2) 21...fe4 22.Qb3 Bg3 23.fg3 Qe6=; B) 21.Nce4?! fe4 22.Be2 Ra2+=; C) 21.Qb3+/–) 20.Qb3 (20.f3 gf3 21.gf3 Qg6 22.Kh1 Rf8+=) 20...Ndf6 21.Ne2 h5 22.Nf4 Qd7 23.Qc2 (23.Ng6 Qe6+=) 23...Ra2 (23...h4 24.Ng6+=) 24.Ng3 (24.Ng6 Qe6+=) 24...h4 (24...Bf4 25.ef4 h4 26.Ne2+=) 25.Nge2 Qf7 (25...g3 26.hg3 hg3 27.f3=) 26.Nc3 Nc3 27.Qc3 Ne4 28.Qb3 Ra8 29.Qd1 g3 30.fg3 hg3 31.h3 Ra2 (31...Kf8 32.Ra1=) 32.Qb3 Ra8 33.Rc2 (33.Be2 Kg7=) 33...Kg7= 34.Be2 Qg8 (34...Ra5 35.Rc1=) 35.Bh5 (35.Rc1 Kf8=) ½–½. b4_player – opponent, gamecolony.com, 2008.

11.cd5 Nd5=+ 12.Nbd2 Bb7 13.Be2 Qf6 (13...c5 14.dc5 Nc5 15.0-0=+) 14.Bb2 (14.e4 Nf4 15.0-0 Qg6-/+) 14...Qg6 15.0-0 c5 (15...Ra8 16.Nc4=+) 16.bc6 Bc6 17.Qb3 (17.Nc4 Bb4=) 17...Ra8 (17...Rc8 18.e4 Nf4 19.Nh4 Ne2 20.Kh1-+) 18.Rc1= Ba4 (18...Rc8 19.e4 Nf4 20.Kf1 Qg2 21.Ke1 Ne2 22.Ke2 Bh2 23.Nh2 Qh2 24.Qb4-+) 19.Qc4 (19.Qd3 Qd3 20.Bd3 b5=) 19...f5 (19...b5 20.Qc6 Bh2 21.Kh2+-) 20.Ne5 Ne5 21.de5 Bc5 (21...b5 22.Qc6 Rd8 23.ed6+-) 22.Bf3 (22.Bd4 Bd4 23.ed4 b5+=) 22...Bc6 ½–½. Conde,Jose A – Woelfelschneider,Peter, TT–06 TSC, 2003.

11.cd5 Nd5 12.Be2 Qf6 13.Nbd2 Qg6 14.0-0 Bb7 15.Bb2 Be7 16.Qb3 Ra8 17.Rc1 f5 18.h3 Bb4 19.Nc4 Qh5 20.Ba3 Ba3 21.Na3 Qg6 22.Nc4 N5f6 23.Qd1 Bd5 24.Nb2 Ra7 25.Nd3 Qe8 26.Nb4 Qf8 27.Nd5 Nd5 28.Rc6 Qe8 29.Ng5 Qe7 30.Re6 Qg5 31.Bc4 N7f6 32.Re5 Kf8 33.Bd5 (33.Rd5?! Nd5 34.Bd5 f4=) 33...Nd7 34.f4 Qg6 35.Re6 Qg3 36.Qb1 g6? (36...Nf6 37.Qb4 Kf7 38.Qe7 Kg6 39.Rf6 gf6 40.Bf7 Kg7 41.Bc4 Kh6 42.Qf6 Qg6 43.Qh4 Qh5+-) 37.Bc6 Kf7 38.Bd7 1–0. Nemec,Zdenek (2225) – Potemri,Stefan (1720), 30. LSS No Engine Cup Final, 2011.

11.cd5 Nd5=+ 12.e4 Bb4 13.Nbd2 Nf4 =.

13.0-0 Qa8 14.Nbd2 =.

14.Bd3 f5 =.

15.Qd4 Qf6 16.Qf6 gf6 17.de6 fe6 18.Nd4 Re8 19.f3 Ng5 20.Nd2 Kg7 (20...Nf7 21.Rd1+=) 21.Rd1 Kg6 (21...Nf7 22.N2b3 Bc8 23.Nc6+=) 22.f4 e5 (22...Nge4!?+=) 23.fg5+/– ed4 24.ed4 Nd7 25.gf6 Nf6 26.Rf1 (26.Bd3 Kg7+/–) 26...Re3+= 27.Nf3 Bd5 28.Bd5 (28.Ne5 Be5 29.de5 Bc4 30.Rf6 Kg5+=) 28...Nd5+= 29.Rb1 (29.Ne5 Be5 30.de5 Rb3+=) 29...Kf5= 30.Ne5 Re2 31.Rf1 Ke4 32.Ng4 Ne3 (32...Kd3 33.Rb1=) 33.Ne3= Re3 34.Rb1 (34.g3 Rb3=+) 34...Re2= 35.g3 (35.h3 Kd5=+) 35...Kd5 36.Rc1 Rd2 37.Re1 (37.Kh1 Ra2=+) 37...Kc4 38.Rb1 h6 39.Bb2 h5 40.Ba1 Re2 (40...h4 41.Rc1 Kb5 42.Bc3-/+) 41.Rf1 (41.d5!?-/+) 41...Kb5-+ 42.Rf2 Re1 43.Rf1 Rf1 44.Kf1 Kc4 45.Kf2 b5 46.Ke3 b4 47.h3? Bg3 48.Ke2 0–1. b4_player – opponent, gamecolony.com, 2007.

16.de6 fe6 17.Nbd2 =.

16.de6 Ne6 17.Qh4 Nd5 18.Qg4 Nf6 19.Qf5 Be4 20.Qh3 Re8 21.Qh4 Bf3 +=.

16.de6 Ne6 17.Qh4 Nd5 18.Qh5 Nf6 19.Qf5 Be4 20.Qh3 Nc5 21.Nc3 Bb7 +=.

16.de6 Ne6 17.Qh4 Nd7 18.Rd1 Ne5 19.Be5 Qh4 20.Nh4 Be5 21.Nf5 Ra8 =.

16.de6 Ne6 17.Qh4 Nd7 18.Nbd2 Qh4 19.Nh4 g6 20.Nhf3 c5 21.Bc3 h6 =.

16.de6 Ne6 17.Qh4 Nd7 18.Qd8 Rd8 19.Rd1 Ndc5 20.Nd4 Be5 21.Re1 Bf6 =.

16.de6 Ne6 17.Qh4 Nd7 18.Qg4 Bf3 19.gf3 Qe7 20.f4 Rd8 21.Rd1 Nf6 +=.

16.de6 Ne6 17.Qh4 Nd7 18.Qh3 Bf3 19.gf3 Qg5 20.Kh1 Qe7 21.Nc3 Ra8 =.

16.de6 Ne6 17.Qh4 Nd7 18.Qh5 Qe7 19.Nbd2 Rd8 20.Rd1 c6 21.bc6 Bc6 =.

16.de6 Ne6 17.Qh4 Ne4 18.Qg4 (18.Qh5 Qe7 (18...Nf6) 19.Nc3 Nc3 20.Bc3 Bf3 21.gf3 Rc8=) 18...Qe7 (18...Nf6 19.Qf5 Be4 20.Qh3 Re8 21.Qh4 Bf3+=) 19.Nc3 (19.Nd4 Nd4 20.Bd4 Be5= 21.Rd1 Nd6=) 19...Nf6 20.Qh3 (20.Qf5 Rd8 21.Rc1 c6=) 20...h6 (20...Rd8 21.Rc1 Ba3=) 21.Rd1 (21.Bb2 Ra8+=) 21...Ra8 (21...Rd8=) 22.Bb2 Ba3 23.Ba1 (23.Ba3 Ra3 24.Ne2 Ne4=) 23...Bb4 (23...Bd6 24.Qf5+=) 24.Ne2 Rd8 25.Ned4 Nd4 26.Bd4 (< 26.ed4 Bd5 27.Bd5 Rd5 28.Qc8 Kh7=+) 26...Bc3 27.Qg3 Bf3 28.Qf3 Bd4 29.ed4 g6 30.g3 Kg7 31.Qc6 Qd6 32.Qf3 Re8 33.Kg2 h5 34.h4 Re7 35.Qd3 Ng4 36.Qc3 Re8 37.Ra1 Qf6 38.Qb2 Qf5 39.Kg1 Re7 40.Qd2 Rd7 41.Rc1 Qf6 42.Rd1 Nh6 43.d5 Re7 44.Kg2 Re4 45.Rc1 Ng4 46.Qc3 Qc3=+ 47.Rc3 Nf6 48.Kf3 Rd4 49.Be2 Nd5 50.Rc6 Kf8 51.Bc4 Ke8 52.Bd5 Rd5 53.Rc7 Rb5 54.Rb7 Kf8 55.Kf4 Kg7 56.f3 Rb4 57.Kg5 b5 58.g4 Rd4 59.gh5 Rd5 60.Kf4 Rh5 61.Ke3 Rc5 62.Ke4 Rc4 63.Kd3 Rb4 64.Rb6 Rb3 65.Ke4 b4 66.Rb5 Rb1 67.h5 f5 68.Kf4 gh5 69.Kf5 b3 70.Rb7 Kf8 71.f4 b2 72.Rb6 h4 73.Rf6? Ke8 74.Rb6 Kd7 75.Rb3 Kc6 76.Rc3 Kb5 77.Rc7 Ka4 78.Ra7 Kb3 79.Rb7 Kc3 80.Rc7 Kd2 81.Rd7 Ke2 82.Re7 Kf3 83.Rd7 Rc1 84.Rd3 Ke2 85.Rb3 b1Q 86.Rb1 0–1. pierre – crispyduck, internet, 2008.

11.Bc4 b6 12.0-0 Bb7 13.Nc3 Qa8 14.Bb2 Bf3 (14...c5 15.dc5 Bc5 16.Be2=) 15.Qf3+= Qf3 16.gf3 Ra8 17.Ra1 Ra1 (17...Ra5 18.f4+=) 18.Ba1+= Kf8 19.Bb2 Ke7 20.e4 Bb4 (20...e5 21.Ne2=) 21.Na2 Bd2 22.Kf1 Nh5 (22...Nb8 23.Ba3 Kd7 24.Bf8=) 23.Ke2 (23.Nc1 Nf4+=) 23...Bg5 (23...Bf4 24.h3=) 24.Nb4+= Nf4 25.Kf1 Ke8 26.Nc6 (26.Na6 Kd8+=) 26...Nf6 (26...Nf8 27.Ne5=) 27.Bc1 N6h5 28.Be3 Bh4 (28...Nh3 29.Bb3+=) 29.Ke1 Ng2 30.Kd2 h6 31.Bf1 Nhf4 32.Bg2 Ng2 33.f4 f5 34.f3 Kd7 35.Ke2 Ne3 36.Ke3 Kd6 37.Ke2 h5 38.Kd3 Bf2 39.Ne5 Bg1 40.h3 Bf2 41.Ng6 Kd7 42.Kc4 Ke8 43.Kc3 Kf7 44.Ne5 Kf6 45.Kd3 Bg3 46.Ke3 Bh2 47.Nc6 g6 48.Nb4+= ½–½. orane – linear, caissa.com, 2006.

11.Bc4 Nd5 =+.

11.Nbd2 =+.

12.Bb3 Bd7=+ Black begins to deal mighty blows 13.Nc3 Nfd5 14.Nd5 (14.Bc2 Bb4 15.0-0 Bc3=+) 14...ed5-/+ 15.Ba4 (better 15.Qb1!?-/+) 15...Na4-+ 16.Qa4 Qa8 17.Qa8 Ra8 18.0-0 Bb5 19.Rb1 Bd3 20.Rc1 f6 21.Bb2 Ra2 (21...Ra2 22.Bc3 b5-+) 0-1. retiponziani (1865) – Dekcol, ChessWorld.net, 2011.

12.Bd3 Nbd5 13.0-0 Nb4 14.e4 =.

12.Bd3 Nfd5 13.0-0 Nb4 14.Be2 Bd7 15.Nc3 =.

12.Bd3 Nfd5 13.0-0 Nb4 14.Be2 Qe8 15.Nc3 Bd7 16.Qb3 N4d5 17.Rc1 Qe7 18.Ne4 Ra8 19.Nd6 Qd6 20.Bd3 (20.Bb2 Ra4+=) 20...f6 (20...Nb4 21.Bf1+=) 21.Bb2 (21.Qc2 h6 22.Bc3 c6=) 21...Qb4= 22.Qb4 Nb4 23.Bf1 c6 24.bc6 Bc6 25.Ra1 Ra1 26.Ba1 Nc2 (26...Na4 27.Ne1=) 27.Bc3 Nd5 28.Bd2 b5 29.Ne1 Ne1 30.Be1 f5 31.Bd3 Kf7 32.Ba5 g6 33.h3 e5 34.de5 Ke6 35.f4 Ne3 36.g3 Nc4 37.Bb4 g5 38.Kf2 Be4 39.Be2 Bc2 40.Bc3 gf4 41.gf4 Be4 42.Bb4 Bc6 43.h4 Nb6 44.Bd1 (44.h5 Nc4=) 44...Be4 (44...Nc4 45.Bb3=) 45.h5 Nd5 46.Bb3 Bd3 47.Bd5 Kd5 48.Ke3 Be4 49.Bd6 (49.Bf8 Kc4+=) 49...Kc4 50.Kd2 Bd5 51.h6 Kd4 52.Be7 Ke4 53.Bg5 b4 54.Kc2 Be6 55.Kb2. b4_player – opponent, gamecolony.com, 2008.

12.Bd3 Nfd5 13.0-0 Nb4 14.Be2 Qf6 15.Nbd2 Qh6 16.Qb3 N4d5 17.Ne4 Be7 18.Bb2 Nd7 (18...f5 19.Nc5+=) 19.Ra1 Qg6 20.Bd3 f5 21.Nc3 N5b6 22.Ra7 Bd6 23.Ba3 Qf6 24.e4 Ba3 25.Qa3 Qh6 26.e5 Re8 27.Qb3 Qc1 28.Bf1 Re7 29.Na2 Qh6 30.Nb4 Nf8 31.Qc2 Qh5 (31...Ng6 32.Nd3+/–) 32.Nd2 Nd5 33.Nd5 ed5 34.Nb3 f4 35.Be2 Qf7 36.Na5 Ne6 37.Qd1 (37.Nb7 Nd4 38.Qd3 Ne2 39.Qe2 Qe8-/+) 37...c5 (37...Qe8 38.Qd3+/– (38.Nb7? Bb7 39.Qd3 c5 40.bc6 Qc6-+)) 38.bc6+- bc6 39.Re7 Qe7 40.Nc6 Qc7 41.Qc2 (41.Nb4 Qa5 42.Qc1 Bb7+/–) 41...Bd7+/– 42.Bg4 Qb6 43.h3 Qc6 44.Qc6 Bc6 45.Be6 Kf8 46.g3 fg3 47.fg3 Ke7 48.Bg8 g6 49.Kf2 h6 50.h4 Kf8 51.Be6 Ke7 52.Bg4 Ba4 53.Ke3 g5 54.Kd2 Bb5 55.Kc3 Bf1 56.hg5 hg5 57.Bf5 Bg2 58.Kb4 Bf3 59.Kc5 Bg2 60.Bh7 Kf8 61.Kd6 (61...Bf3 62.Bg6+-) 1–0. Tihomir Glowatzky – ChelseaMick, ChessWorld.net, 2005.

12.Bd3 Bd7 13.0-0 Qe8 14.e4 Ng4 += (< 14...Bb5 15.e5+/–).

12.Bd3 Bd7 13.Nbd2 Qa8 14.0-0 Qa2 (14...Qa5 15.e4 Bf4 16.Qe2=) 15.e4 Bf4 16.g3 (16.Nb3 c6+=) 16...Bh6 (16...Bd2 17.Qd2 Qd2 18.Nd2+=) 17.Qc1 (17.Nb3 c6=) 17...Rc8 (17...c6 18.Qc5 Na4 19.Qb4 cb5 20.d5 ed5 21.e5=) 18.Bc3 Na4 (18...c6 19.bc6 Bc6 20.Qb1 Qb1 21.Rb1= (21.Nb1? Be4 22.Be4 Ne4-+)) 19.Bb4 +=.

12.Bd3 Bd7 13.Nbd2 Nbd5 14.0-0 =.

11.dc5 Nc5-/+ 12.Nbd2 A) 12...b6 13.cd5 (13.Ne5 Qc7 14.Nc6 Nfe4 15.Bb2 Re8 16.g3 Bb7 17.cd5 ed5 18.Ne4; 13.Be2 Bb7 14.0-0 Nfe4 15.Bd4 Qc7 16.cd5 Bd5 17.Ne4 Ne4 18.Qc1; 13.Nd4 Nfe4 14.cd5 ed5 15.Nc6 Qe8 16.Ne4 Qe4 17.Qd4 Qb1 18.Qd1; 13.Qc2 Bb7 14.cd5 Nd5 15.Be2 f6 16.0-0 Qc7 17.Rd1 Rc8 18.g3; 13.Bb2 Bb7 14.cd5 ed5 15.Be2 Qe7 16.0-0 Rc8 17.g3 Nfe4 18.Nd4) 13...Nd5 14.Nc4 f6 15.Be2 Qc7 16.0-0 Be7 17.Nd4 Bb7 18.f4; B) 12...Bd7 13.Be2 Qa5 14.0-0 Ra8 15.Bf6 gf6 16.cd5 ed5 17.Nc4 Bh2 18.Nh2; C) 12...h6 13.Be2 (13.Bd4 Re8 14.Qa1 Qe7 15.Bf6 Qf6 16.Qf6 gf6 17.cd5 ed5 18.Nd4; 13.Bb2 Qe7 14.Be2 Rd8 15.0-0 b6 16.cd5 ed5 17.Qa1 Re8 18.Rc1) 13...b6 14.cd5 ed5 15.0-0 Qe7 16.Bd4 Bg4 17.Qa1 Nfe4 18.Bg7; D) 12...Re8 13.Be2 b6 14.0-0 h6 15.Ne5 Qc7 16.f4 Bb7 17.cd5 Bd5 18.Ndc4.

11.dc5 Nc5 12.Be2 Qa5 13.Bc3 Qd8 14.0-0 Nce4 (14...b6 15.Bf6 Qf6 16.cd5=) 15.Bd4 (15.cd5 Nd5 16.Bd4 Qe7=) 15...dc4 16.Bc4 (16.Qa4 Qe7=) 16...Qc7 17.Qc2 Ng4 (17...e5 18.Bb2=+) 18.h3 (18.Qe4? Bh2 19.Kh1 Qc4 20.Qg4 Qf1 21.Kh2 e5-+) 18...Bh2 19.Kh1 Nef2 20.Rf2 Nf2 21.Qf2 Qc4 22.Kh2 Qb5 23.Nc3 Qc6 24.Ne5 (24.e4 b5=) 24...Qc7 25.Nb5 Qb8 26.Kg1 f6 27.Qa2 b6 (27...Rd8 28.Qa3 Rd4 29.Qe7 Rd1 30.Kf2=) 28.Nc4 Rd8 29.Qb3 (worse 29.Nb6 Rd4 30.Nd4 Qb6-/+) 29...Bb7 30.Nb6 (30.Bb6?? Qg3 31.e4 Qb3 32.Bd8 Qc4-+) 30...Kf7 (30...Re8 31.Nc3+=) 31.Nc4 Bc6 (31...Kg8 32.Nbd6 Ba6 33.Qb8 Rb8 34.Nb6+=) 32.Nbd6 Kg8 33.Qb8 Rb8 34.Kf2 Rb4 35.Bc3 (35.g4 Bd5 36.Nb6 Bh1+=) 35...Rb3 36.Bd4 ½–½. Nemec,Zdenek (2055) – Luers,Charles (1835), SB–2010-0-00111, 2010.

11.dc5 Nc5-/+ 12.Be2 Qe7 (12...Nfe4 13.Nbd2=+ Qc7 14.0-0 Rd8 15.Qc2 f6 16.g3 Qf7 17.Ne4 de4 18.Nd2; 12...Nce4 13.0-0 Bd7 14.cd5 Nd5 15.Qd4 Qf6 16.Qa4 Nc5 17.Bf6 Na4 18.Be5; 12...dc4 13.Bf6 (13.Bc4 Nfe4 14.0-0 Qc7 15.Nbd2 Rd8 16.g3 b6 17.Ne4 Ne4 18.Qd4; 13.0-0 c3 14.Nc3 Qc7 15.Qc2 Bd7 16.Rd1 Ra8 17.Bb2 h6 18.Qd2) 13...gf6 14.Bc4 Qa5 15.Nbd2 Bd7 16.0-0 Ra8 17.Nb3 Qc7 18.g3) 13.0-0=+ (13.Nbd2 Rd8 14.0-0 e5 15.cd5 e4 16.Nd4 Nd5 17.Nc4 Bc7 18.Qd2; 13.Nc3 dc4 14.Bc4 b6 15.0-0 Bb7 16.Nd4 Rc8 17.Nc6 Qc7 18.f4) 13...b6 (13...Rd8 14.Qc2=+ (14.Nbd2 e5 15.cd5 e4 16.Nd4 Nd5 17.Nc4 Bc7 18.Qd2) 14...b6 15.cd5 ed5 16.Nc3 Bg4 17.Rd1 Ra8 18.Bb2; 13...h6 14.Nbd2 b6 15.Ne5 Bb7 16.Nc6 Qd7 17.Bf6 gf6 18.Qa1) 14.Bf6= (14.Nbd2 Bb7 15.cd5 ed5 16.Nd4 Qd7 17.Nc6 Bc6 18.bc6) 14...Qf6 15.cd5 ed5 (15...Ne4 16.de6 Qe6 17.Bd3= Rd8 18.Nd4) 16.Qd5 Bb7 (16...Rd8 17.Qg5 Qg5 18.Ng5=) 17.Qd4 Qe7 (17...Qg6 18.Nc3=) 18.Qh4 (18.Nc3=) 18...Qh4 (18...Qe6 19.Nc3=) 19.Nh4 Ne4 (19...Bc7 20.Nd2+=) 20.Rd1+= Bb4 (20...Bc5 21.Nf3+=) 21.Nf3 Rc8 (21...Re8 22.Nd4+=) 22.Ne5 g6 (22...h6!?+=) 23.Nc4+- Bc5 (23...Kg7 24.f3 Nf6 25.Nb6+-) 24.f3 Nf6 25.Nc3 Be3 (25...Ra8 26.Kf2+-) 26.Ne3 Rc3 27.Rd8 Kg7 28.Kf2 (28.Nc4 Nd5 29.Nd6 Nf4+-) 28...Bc8+= 29.Bc4 Be6 30.Be6 fe6 31.Rd6 Nd5 32.Nd5 ed5 33.Rb6 (33.Kg3 Rb3+=) 33...Rb3 (33...Rc2 34.Kg3 Rb2 35.h3+=) 34.h4 h6 (34...h5 35.Kg3+=) 35.g4+- d4 (35...Kf7 36.Ke2+-) 36.f4 (36.Ke2 Re3 37.Kd2 Rf3+-) 36...h5 37.gh5 gh5 38.Rb8 Rb4? (better 38...Kf6+-) 39.b6+- d3 (39...Rb3 40.Ke2 Kg6 41.b7+-) 40.Ke3 d2 41.Kd2 Rf4 42.Kc3 (42.Kc3 Rf1 43.Kb4 Rb1 44.Ka5 Ra1 45.Kb5 Rb1 46.Kc6 Rc1 47.Kb7+-) 1–0. Johannes,Jan (2190) – Paz,Gustavo (2075), CiF, 2008.

11.Bd3 cd4=+ 12.ed4 (12.Nd4 Bb4 13.Bc3 Bc3 14.Nc3 Qc7-/+) 12...dc4 13.Bc4 Qa5 (13...b6 14.0-0-/+) 14.Bc3=+ Qc7 15.Bd3 Nd5 (15...b6 16.0-0=+) 16.Bd2 e5 (16...b6 17.Qc2 Qc2 18.Bc2=+) 17.de5 (17.Qc2 Qc2 18.Bc2 ed4 19.Nd4 Re8 20.Kf1 Nb4=+) 17...Ne5=+ 18.Ne5 Be5 19.g3 Nf6 20.0-0 Be6 (20...Rd8 21.Qc2=) 21.Re1= Bd4 (21...Rd8 22.Qc2=+) 22.Be3=+ Be3 23.Re3 Nd5 (23...Ra8 24.Nd2=+) 24.Re4 Ra8 25.Rd4 (25.Ra4 Rd8=) 25...g6 (25...Nf6 26.Qd2=+) 26.Bc4 Ne3 27.fe3 Bc4 28.b6 Qb6 29.Rc4 Ra1 30.Rc1 Qe3 31.Kf1 Ra2 (31...Qe4 32.Qe1 Qh1 33.Kf2 Qh2 34.Ke3=) 32.Rc2+= Ra1 (32...Qe4!? 33.Ra2 Qh1 34.Ke2 Qh2 35.Kf3 Qa2+=) 33.Rb2+- 1–0. DEFFM – GuestRNYW, freechess.org, 2018.

11.cd5 cd4 12.de6+= Bb4 13.Nbd2 fe6 14.Bc4 (14.Nd4? Ne4 15.Ne6 Qa5-+ (15...Bd2 16.Qd2 Nd2 17.Nd8 Nf1 18.Ne6 Ne3 19.fe3+/–); 14.Bd4?! Ne4 15.Bc4 Rf3 16.Be6 Kh8 17.Qf3 Ndf6= (< 17...Bd2 18.Ke2 Ng5 19.Qd5 Ne6 20.Qe6+=; 17...Nd2?? 18.Bg7 Kg7 19.Qg4 Kh6 20.Qb4+-)) 14...Nb6 15.Qb3 (15.0-0 de3 16.fe3 Nfd5=) 15...Bd2 16.Nd2 de3 (16...Nc4!? 17.Nc4 Qd5=) 17.Be6+= (< 17.Qe3 Nc4 18.Nc4 Qd5 19.Bf6 Qc4=+) 17...Kh8 18.fe3 (18.Qe3? Re8 19.0-0 Be6 20.Bf6 gf6-+) 18...Qd6 (18...Be6 19.Qe6 Re8 20.Qb3+=) 19.Bc4 Bg4 (19...Bd7 20.Bd3+=) 20.Bd4+/– Nc4 21.Nc4 (21.Qc4? Rc8 22.Ne4 Ne4 23.Bg7 Kg7 24.Qe4 Bf5 25.Qf5 Qb4 26.Ke2 Qb2 27.Kf3 Rf8 28.Qf8 Kf8-+) 21...Qd5 22.0-0 Be2 23.Qa3 Re8 24.Rf6 gf6 25.Nd6 Rb8 26.Qb4 Qe6 27.Ne4+/– Rc8 28.h4 Kg7 29.Nf6 Rc1 30.Kh2 Kg6 31.Qd2 Qd6+- 32.g3 Qc7 33.e4 h6 34.Ng8 Kf7 35.Nh6 Ke8 36.Qg5 Rc2 37.Kg1 Rc1+/– 38.Kg2 Bf1 39.Kf3+- Bg2? 40.Kg2 Qc2 41.Kh3 Rh1 42.Kg4 Qd1 43.Kf5 Qd4 44.Qg6 Kd7 45.Qe6 Kc7 46.Kg6 Rb1 47.Nf5 Qd3 48.h5 (48...Rb5 49.Qe7 Kc6 50.h6 Rf5 51.ef5 Qg3 52.Qg5+-) 1–0. Bendig,Frank (2370) – Geiger,Walter (2065), TE.2004.P.01707, 2004.

11.cd5 ed5 12.dc5 Nc5 13.Be2 Nce4 14.0-0 Qa5 15.Nbd2 Nc3 The isolani on b5 becomes a target 16.Bc3 Qc3 17.Qa4 Bc5 18.Nb3 (better is 18.Qa1 Ne4 19.Qc3 Nc3 20.Bd3=) 18...Be3!-/+ 19.Nfd4 (19.fe3 Qe3 Double attack) 19...Ne4 20.fe3 Qe3 21.Kh1 Bg4 22.Bg4?? (22.Nc1 Rc8 23.Na2 Be2 24.Ne2 Qe2 25.Ra1-+) 22…Nf2 (22...Nf2 23.Kg1 Nh3 24.Kh1 Qg1 25.Rg1 Nf2) 0–1. Jostov,Keylah – Szczepanski,Zbigniew (2480), OP–2011–0-01530, 2011.

11.cd5 ed5 12.dc5 Nc5 13.Be2 Nce4 14.0-0 Qc7 =.

11.cd5 ed5 12.dc5 Nc5 13.Be2 Nce4 14.0-0 Be6 15.Nbd2 (15.Be5 Be5 16.Ne5 Qd6=) 15...Qc7 16.Bd3 Ra8 17.Bd4 Nc3 (17...b6 18.Qc1=) 18.b6 Qc8 19.Qe1 Nfe4 20.Nb1 Na2 21.Nbd2 Bb4 22.Qd1 Nac3 (22...Bf5 23.Nb1=) 23.Qb3 Bd6 24.Nb1 Na2 25.Bb5 Ra5 26.Rd1 Nb4 27.Bf1 (27.Be2 Ra2 28.Nfd2 Qc6=) 27...Ra2=+ 28.Nbd2 Rc2 (28...Bg4 29.Ne4 de4 30.Bc3=) 29.h3= h6 30.Qa4 Ra2 31.Qb3 Qc6 32.Bd3 Nc5 (worse 32...Nd3 33.Qa2 (worse 33.Qd3 Bb4=+) 33...Nef2 34.Ra1+=) 33.Qb4 (33.Bh7 Kh7 34.Qb4 Nd3=+) 33...Nd3 34.Qb1 (34.Qb3 Ra3 35.Qb1 Bf5=+) 34...Qa4=+ 35.Nf1 Nf2 36.Rd2 Rd2 37.N3d2 Ne4 38.Ne4 de4 39.Qe4 Qd7 40.Qf3 Qc8 41.Qe4 Bf5 42.Qd5 Qd7 43.Be5 Bb4 (43...Be7 44.Qd7 Bd7 45.Bd4=) 44.Qd7 (44.Qd4 Bf8=) 44...Bd7 45.Bd4 Be1 (45...Bc6 46.Kf2=) 46.e4 Bc6 (46...f6 47.Ne3=) 47.e5 Kf8 48.Ne3 g6 (48...Ke7 49.Nf5 Ke6 50.Ng7 Kd5 51.Be3=) 49.Nc2 (49.Kf1 Bg3 50.Bc5 Kg7=) 49...Bg3 50.Nb4 Be4 51.Na2 ½–½. pierre – jarek59, internet, 2007.

11.cd5 ed5 12.dc5 Nc5 13.Be2 Nce4 (13...Be6 14.0-0=) 14.0-0 Be6 (14...Qe7 15.Bd4=) 15.Bd4 Qa5 (15...Qc7 16.b6 Qc6 17.Qb3=) 16.Qd3 Bb4 (16...Rc8 17.Nbd2=) 17.Rd1 (17.Be5 Rc8=) 17...Rc8 (17...Ng4 18.Rf1=) 18.Nfd2 Qa4 19.Qb3 Qb3 20.Nb3 Rc2 21.Nc1 Nd7 22.Kf1 (22.Bd3 Rc8=) 22...Ndc5 (22...Bc5 23.Nb3 Bd6 24.f3=) 23.f3 Nd6 24.Nd3 Nd3 25.Bd3 Rc8 26.Nd2 Bd7 27.b6 Nc4 (27...Nb5 28.Bb5 Bb5 29.Kf2=) 28.Nc4 dc4 29.Bc2 Bc6 30.Ra1 Rd8 31.Ke2+= f6 32.Ba4 Bd5 33.Bb5 Bd6 34.Rd1+/– Be7 35.Bf6 Bf6 36.Rd5 c3 37.Bc4 Kf8 38.Kd3 Rc8 39.Bb3 Rc6 40.Kc2 Rb6+= 41.e4 Re6 42.Rb5 Re7 43.Bd5 Bd4 44.Bb7 Rc7 45.f4 Bg1 46.h3 Be3 47.f5 Ke7 48.e5 Rc4 49.Bd5+- Rc7 50.g4 Bf4 51.Bg8 h6 52.Bb3 Ke8? 53.h4 Rc8 54.f6 Kf8 55.Rb7 gf6 56.ef6 Rb8 57.Rg7 Ke8 58.g5 hg5 59.hg5 Rb6 60.Rg8 Kd7 61.f7 Bd6 62.g6 Bb4 63.g7 Rf6 64.Ba4 Kc7 65.Ra8 Rf2 66.Kb3 Rb2 67.Kc4 c2 68.Bc2!! Be7 69.g8Q Rc2 70.Kd3 (70...Rd2 71.Kd2 Bf8 72.Qf8 Kb6 73.Qd6 Kb5 74.Rb8 Kc4 75.Rb4#) 1–0. b4_player – opponent, gamecolony.com, 2007.

11.cd5 ed5 12.dc5 Nc5 13.Be2 Nce4 14.Nbd2 Qc7 0–1. zack1984 (2020) – jdhjr (2340), gameknot.com, 2016.

11.cd5 Nd5 12.Nc3 =.

11.Be2 cd4=+ 12.ed4 Qa5 (better 12...dc4!? 13.Bc4 b6-/+) 13.Bc3= Bb4 14.Bb4 (14.Qd2 Bc3 15.Qc3 Qa2=) 14...Qb4 15.Nbd2 Ne4 (15...dc4 16.Bc4 b6 17.0-0=) 16.0-0 (16.Bd3 Nc3 17.Qb3 Qb3 18.Nb3 dc4 19.Bc4 Nb6=) 16...Nc3=+ 17.Qe1 Nf6 (17...dc4 18.Bc4 Nb5 19.Qe3=+) 18.Ne5 (18.Bd3 Bd7=+) 18...dc4 19.Bc4 Nd7 (better 19...Nb5 20.Bb5 Qb5-/+) 20.Ndf3?? (better 20.Nf7 Nb6 21.Ne5 (worse 21.Be6 Be6 22.Nh6 gh6 23.Qe6 Rf7=+) 21...Nc4 22.Nec4 Nb5 23.Qe5+=) 20...Ne5-+ 21.Ne5 Nd5?? (better 21...f6 22.Ng6 Re8-+) 22.Qb1 (22.Bd5 Qe1 23.Re1 ed5+=) 22...Qb1= 23.Rb1 f6 24.Nd3 Nb6 25.Ba2 (25.Rb4 Nc4 26.Rc4 Bd7=) 25...Rd8 26.Nc5 (26.Rb4 Nd5 27.Bd5 Rd5=) 26...Kf7 (better 26...Rd4 27.Be6 Be6 28.Ne6 Rd5=) 27.f3 (better 27.Rd1!?=) 27...Rd4-/+ 28.Re1 (28.Rc1 Ke7-/+) 28…Nd5 0–1. GuestZBPB – GuestLBSX, freechess.org, 2017.

11.Be2 cd4=+ 12.Bd4 dc4 13.Bc4 Qc7=+.

11.Be2 cd4 12.Nd4 dc4 13.Bc4 Ne4 14.0-0 (14.Nc3 Bb4 15.Qc1 Qc7-+) 14...Qc7 15.Bd3 Bh2 16.Kh1 Ndc5 17.b6 Qd6 (17...Qb8 18.Nb3 Nb3 19.Qb3=) 18.Be4=+ Ne4 19.Qg4 Nf6 20.Qh3 (20.Qe2 Be5 21.f4 Bd4 22.Bd4 Nd5-/+) 20...Be5 21.f4 Bd4 22.Bd4 Ne4 (22...Nd7-/+) 23.Nc3 (23.Qf3!? f5 24.Rc1-/+) 23...Nc3-+ 24.Bc3 Qb6 25.Rc1 (25.Qg3 f6-+) 25...Bd7 (25...e5 26.Qg3-+) 26.Kh2 (26.e4 f5-+) 26...Qb3 (26...Qb5 27.Qg3 Qh5 28.Kg1-+) 27.e4 Bc6 (27...Rc8 28.Qd3 Qb5 29.Qf3-+) 28.Qg3 f6 29.Qd3 (29.e5 f5-+) 29...Qa4 (29...e5 30.fe5 fe5 31.Qd6-+) 30.Re1 Qa2 (30...b5 31.Bd2-+) 31.Bd4 (31.Qg3 Qc2 32.Qf3 e5 33.fe5 fe5-+) 31...Rd8 32.Qc3 Kf7 (32...Qa4 33.Bb6 Rd1 34.Rd1 Qd1 35.e5-+) 33.Bb6 Rd2 34.Qg3 Qc4 35.Qf3 h6 (35...Kg8 36.f5-+) 36.f5 ef5 37.Qh5 Kg8 38.Qf5 Rd6 39.Qc8 Kf7 40.Kg1 (40.Qc7 Rd7 41.Qc8 Re7-+) 40...Re6 41.Qc7 Re7 42.Qf4 (42.Qh2 Re4 (42...Be4?! 43.Qg3-+) 43.Be3 Rh4 44.Qc7 Kg6-+) 42...Re5 (42...Re4!? 43.Re4 Be4 44.Qd6-+) 43.Qg4 (43.Be3 Re4 44.Qf2 Qd5-+) 43…Qb4 (43...Qb4 44.Bf2 Re4 (worse 44...Be4 45.Kh2-+) 45.Re4 Be4 46.Qh5 Kg8-+) 0–1. GuestRZBT – hllyrck, freechess.org, 2018.

12.c5 Bc7 13.Be2 (13.Bd3 Re8=) 13...Bb7 14.0-0 Qa8 15.Bb2 Rb8 16.Qc2 Ba6 17.Ba6 (17.Nc3 Be2 18.Ne2 Qa2=+) 17...Qa6 18.Nc3 Ne4 (18...e5 19.Ra1 Qc8 20.de5 Ne5 21.Nd2=) 19.Ra1 Qb7 20.Ra2 f5 21.Nd2 Nd2 22.Qd2 e5 23.Qd3 (23.Bc1 Nf6=) 23...e4=+ 24.Qd1 Nf8 (24...Nf6 25.Qd2=+) 25.Qe2 Ne6 26.h3 (26.f4 Bd8=+) 26...g6 27.h4 (27.Ba1 Ra8=+) 27...Bd8 (27...Ng7 28.Ba1=+) 28.h5= Bf6 29.Ba1 (29.hg6 hg6 30.Ba1 Qd7=+) 29...Qd7=+ 30.Qd1 (30.hg6 hg6 31.Bb2 Kf7=+) 30...f4 31.Qg4 Qf7 32.Ra6 fe3 33.fe3 Nd4 34.ed4 Bd4 35.Kh2 Qf1 36.Qe6 Kh8 37.Ne2 Ba1 38.hg6 Qf6 (38...Rf8 39.Ra7 Bg7 40.Rf7 Rf7 41.gf7=) 39.Qf6 Bf6 40.Rc6 Be5 41.Kh3 Re8 42.Ra6 hg6 (42...d4 43.Ra4 Rd8 44.Nd4 Rd4 45.Ra8 Kg7 46.gh7 Kh7 47.Re8-/+) 43.Rg6 d4 44.Rg4 Bf6 45.Ng3 (45.Nf4 e3 46.Nd3 e2-+) 45...e3 46.Rf4 d3 Black plans e2 47.Rf6 e2 (47...e2 48.Rh6 Kg8-+) 0–1. usingprogram (2010) – dobri80 (1700), kurnik, 2013.

12.c5 Be7 13.Nc3 Qa5 14.Bb2 Ne4 15.Qa1 Qa1 16.Ba1 f5 17.Nd2 Bb7 18.Nde4 fe4 19.Be2 e5 20.0-0 Ra8 21.Rb1 ed4 22.ed4 Bf6 23.Nd1 (23.Bg4!? Bc8 24.Ne2+=) 23...Ba6 24.Ba6 Ra6 25.Bc3 Ra4 26.Rb7 Bd4 27.Bd4 (27.Rd7? Bc3 28.Kf1 Bb4-+) 27...Rd4 28.Ne3 Nc5 29.Rg7 Kg7 30.Nf5 Kf6 31.Nd4 Ke7 32.Nc6 Kd6 33.Nd4 Ne6 34.Ne6 Ke6 35.Kf1 Ke5 36.Ke2 Kf4 37.f3 ef3 38.gf3 h5 39.Kf2 d4 40.Ke2 d3 41.Kd3 ½–½. pvanr (2060) – gamebiteer (2285), gameknot.com, 2012.

12.c5 Be7 13.Bd3 e5 14.de5 Ne4 15.0-0 Ndc5 16.Bd4 (16.Be2!?+=) 16...Nd3-/+ 17.Qd3 Bf5 18.Rc1 Qd7 19.Nbd2 (19.Qd1!?-/+) 19...Nf2!-+ 20.Qc3? (20.Kf2 Bd3 Discovered attack) 20...Nd3 21.Rc2 (21.Qc6 Nc1 22.Qc1-+) 21...c5 22.Bc5 (22.Nb3 Qa4 23.e6 cd4 24.Nfd4 Be4-+) 22...Bc5 23.Nf1 (23.Nd4 Bd4 24.Qd4 Nf4 25.ef4 Bc2-+) 23...Ra8 24.Nd4 Ra3 25.Qd2 Bd4 26.ed4 Qa4 27.Qg5 (27.e6 Qd4 28.Qe3 Qe3 29.Ne3 Ra1 30.Nf1 fe6-+) 27...h6 28.Rc7 (28.Qf5 Qc2 29.e6-+) 28…hg5 0–1. guillaume54 (1740) – glovio (2035), gameknot.com, 2014.

12.c5 Be7 13.Be2 Ba6 14.0-0 Be2 15.Qe2 Qc7 16.Nbd2 Ra8 17.Bc3 Ra3 18.Rc1 Bd8 19.Nb1 Ra4 20.Qd1 Qa7 21.Nbd2 Ra2 22.h3 h6 23.Rb1 Qa3 24.Ra1 Ra1 25.Qa1 Qa1 26.Ba1 g5 27.Bc3 Kh7 (27...Kf8 28.Nb3=) 28.Kf1 Kg6 29.Ke2 (29.Nb3 h5+=) 29...h5= 30.Kd3 Kf5 31.Ne1 e5 32.f3 e4 33.fe4 (33.Ke2!?=) 33...de4=+ 34.Kc4 (better 34.Kc2!?=+) 34...Nd5-/+ 35.Nc2 Nc3 36.Kc3 Ba5 37.Nb4 Nf6 38.Kc4 (38.Kb3 Bb4 39.Kb4 Nd5 40.Ka5 Ne3-+) 38…Bb4 (38...Bb4 39.Kb4 Nd5 40.Ka5 Ne3-+) 0-1. Mely (2680) - mikebsaul (2635), ChessWorld.net, 2011.

12.Nbd2 c5 13.cd5 ed5 14.dc5 Nc5 15.Be2 Qe7 16.0-0 Bd7 (16...Bg4 17.h3 Bf5 18.Nd4=) 17.h3 (17.Nb1 Rb8=) 17...Rd8 (17...Ra8 18.Bd4=) 18.Qc2 (18.Bd4 Nfe4=) 18...Nfe4 (18...Rc8 19.Rc1=) 19.Nb3 (19.Rc1 Rc8=) 19...Nb3 (19...Rc8 20.Nc5 Rc5 21.Qb3=) 20.Qb3 h6 (20...Qe6 21.Rd1 Ra8 22.Qb7=) 21.Rd1 Be6 22.Qb2 Qf8 23.Nd4 (23.Bb5 Rb8=) 23...Rb8 24.Nb5 (24.Qc2 Rc8 25.Qd3 Qe7=) 24...Be7 25.Qc2 Rc8 26.Qb1 Bh4 27.f3 Nf2 (27...Ng3 28.Bd3=) 28.Rc1 (better 28.Rf1!?+-) 28...Qe7 29.Rc8 Bc8 30.Bd4 (30.Qb2 Qg5 31.Nd6 Be6=) 30...Qg5=+ 31.Nd6 Nh3 32.Kh1 Nf2 33.Kg1 Nh3 ½–½. Domingo,Jordi (1950) – Vidanovic,Djordje (2120), FICGS, 2010.

12.Nbd2 c5 13.Be2 cd4 14.Bd4 Bb7 15.cd5 Bd5 (worse is 15...ed5 16.Qb1 Qa8 17.0-0+=) 16.0-0 Qc7 17.Qc1 Rc8 18.Qc7 Rc7 19.h3 g6 20.Ba1 Kf8 21.Rd1 Ke7 ½–½. Degterev,Pavel (2275) – Tsenkov,Ljubomir (2365), WC–2011–S–00003, 2008.

11.Nbd2 Qf6 12.c5 Be7 13.Be2 Qg6 14.0-0 e5 15.Re1 (worse is 15.de5 Ndc5 (worse is 15...Bc5 16.Qc2+=) 16.Kh1 Bg4+=) 15...Re8 16.c6 bc6 17.bc6 Nd2 18.Qd2 (worse is 18.Nd2 Qc6 19.de5 Bb4+=) 18...Qc6 19.de5 Nc5 20.Rc1 Qa8 21.Qe1 Bf5 22.Nd4 Bd7 23.Bc3 Rb8 24.Bb4 Nd3 25.Bd3 Bb4 26.Qd1 c5 27.Nf5 c4 28.Qg4 Bf5 29.Bf5 Bd2 30.Rf1 c3 31.e6 fe6 32.Be6 Kh8 33.Qd4 Rd8 34.Bf5 Rf8 35.Bc2 Qa2 36.Qd3 ½–½. usingprogram (2005) – stolpe06 (1710), kurnik, 2011.

11.Bd3 Bb4 12.Nbd2 Nb6 13.c5 Nc4 14.Bc4 dc4 15.0-0 Nd2 +=.

11.Bd3 Bb4 12.Nbd2 Nd2 13.Nd2 Nf6 14.0-0 Bd7 15.Qc2 dc4 =.

11.Bd3 Bb4 12.Nfd2= Nd2 13.Nd2 h6 14.0-0 c6 15.bc6 bc6 +=.

11.Bd3 Bb4 12.Nfd2= Ndf6 13.0-0 Nd2 14.Nd2 Bd7 15.Qc2 dc4 =.

11.Bd3 b6 12.Qc2 Bb7 13.Nc3 Ndf6 14.cd5 ed5 15.0-0 Qe7 =.

11.Bd3 c5 12.0-0 b6 13.Qc2 Bb7 14.Ne5 Be5 15.de5 Qg5 =.

11.Bd3 c5 12.0-0 f5 13.Nc3 cd4 14.Nd4 Ndf6 15.cd5 Nc3 =.

11.Bd3 c5 12.0-0 Ndf6 13.Qc2 g6 (13...b6 14.dc5 bc5 15.Nc3= Bb7=) 14.Nbd2 (14.Rd1 b6+/– (14...cd4 15.Bd4 Qe7+/–) 15.Nbd2 Nd2+=) 14...Nd2 (14...cd4 15.Bd4 Nd2+=) 15.Qd2 dc4 (15...cd4+=) 16.Bc4 Ne4 17.Qb2 Be7 18.Rd1 (18.dc5 Bf6 19.Qb4 Ba1 20.Ra1 Qe7+/–) 18...f5 (18...Nf6 19.Qc2+/–) 19.d5+- Bf6 20.Qb3 Ba1 21.Ra1 (21.de6!? Qe7 22.Ra1+/–) 21...Qf6+/– 22.Ra7 Nd6 23.h4 (23.de6!? Re8 24.Qd3 Nc4 25.Qc4+=) 23...e5= 24.Qc2 f4 25.e4 Bg4 26.Ng5 f3 27.g3 Qd8 28.Ne6 Qb6 29.Ra3 (29.Nf8 Qa7 30.Ne6 Qa1 31.Kh2 Qe1-+ (31...Nc4?! 32.Qc4 Qe1 33.Qc5 Be6 34.de6=)) 29...Re8 30.Ng5 Rf8 31.Qc1 Kg7 32.Ne6 Be6 33.de6 Qc7 34.Rd3+/– Qe7 35.Qa1 Kh6 36.Ba2 Ra8 37.Qe5+- Ra2 38.Rd6 Qd6 39.Qd6 Ra1 40.Kh2 Ra8 41.Qf4 Kg7 42.Qf7 Kh8 43.e7 h5 44.Qf8 Rf8 45.ef8Q+- Kh7 46.e5 c4 47.e6 g5 48.e7 gh4 49.e8Q hg3 50.fg3 (50...c3 51.Qh5#) 1–0. pierre – brenster, chesspark.com, 2008.

11.Bd3 c5 12.bc6 bc6 13.c5 Qa5 14.Nbd2 Nd2 15.Nd2 Bc7 =.

12.Nc3 f5 13.Be2 (13.Bd3 Qe8 (13...b6 14.c6 Ndf6 15.0-0 Ng4 16.h3 Nh6 17.Bb2 Qe8 18.Qc2 Bd6+/–; 13...Ndf6 14.0-0 Qe8 15.Qc2 Qh5 16.Ne5 Nd7 17.f4 b6 18.Be2 Qe8+=) 14.0-0 Ndf6 15.Qc2 Qh5 16.Ne5 Nd7 17.f4 b6 18.Be2 Qe8+=) 13...b6 (13...Qe8 14.0-0 Bf6 15.Qd3 Qg6 16.Bb2 Qf7 17.Ra1 e5 18.c6 bc6+=; 13...Ndf6 14.0-0 Ng4 15.Ne1 Nc3 16.Bc3 e5 17.de5 Bc5 18.Nd3 Be7+=) 14.c6 Ndf6 15.0-0 Ng4 16.h3 Ngf6 (16...Nh6 17.Qd3 Qd6 18.Bb2 Nc3+/–) 17.Qc2 (17.Ne5 Bd6 18.Qd3 Be5+=) 17...Bd6 (17...Qd6 18.Bb2 Nc3+=) 18.Bb2 (18.Ne5 Ne8+=) 18...Nc3 19.Bc3 Ne4 20.Bb2 Qe7 21.Bd3 Ng5 22.Ne5 Nf7 23.Ra1 Ne5 24.de5 Bc5 25.Ra4 Qg5 26.Bd4 Qe7 27.Bc3 Qg5 28.h4 Qe7 29.g3 h6 30.Qd1 g6 31.Kg2 Kg7 32.Be2 g5 33.Bd3 Qf7 34.Qh1 Qe7 35.Bd4 Bd4 36.ed4 g4 37.Qd1 h5 38.Ra7 Rh8 39.Qd2 Rh7 40.Qf4 Kg6 41.Qe3 Rf7 42.Ra8 Rf8 43.Qf4 ½–½. pcmvr (2765) – gkthomas (2830), net–chess.com, 2014.

12.Nc3 Ndf6 A) 13.Be2 b6 (13...Nc3 14.Bc3 b6 15.c6 Ne4 16.Qd3 Qd6 17.0-0 f6 18.Ra1 Qd8+/–; 13...Re8 14.0-0 b6 15.c6 Bd6 16.Ne4 Ne4 17.Bd3 Qf6 18.Qc2 Qf5+=) 14.c6 Bb4 15.Qd3 Bd6 16.0-0 Qe7 17.Ne5 Nc3 18.Bc3 Ne4+=; B) 13.Bd3 b6 (13...c6 14.b6 Bd7 15.0-0 Qe8 16.Qc2 Nc3 17.Bc3 Kh8 18.Ra1 Kg8+-; 13...Nc3 14.Bc3 Ne4 15.Qc2 Nc3 16.Qc3 b6 17.c6 Bd6 18.0-0 Qf6+=) 14.c6 Nc3 15.Bc3 Qe8 16.Ne5 Ne4 17.Be4 de4 18.Qg4 f6+=.

12.Bd3 b6 13.c6 Bb4 14.Nbd2 Ndf6 15.0-0 Nd2 +=.

12.Bd3 b6 13.c6 Bb4 14.Nbd2 Ndf6 15.0-0 g5 (15...Be7 16.Ne5+/–) 16.Nb3+/– Ne8 17.Ne5 (17.Bb2 f6+/–) 17...f6 18.Ng4 h5 19.f3 hg4 (19...N4d6 20.Nf2+/–) 20.fe4 de4 (20...f5 21.e5+/–) 21.Be4 f5 22.Bd3 Qd5 23.Qc2 (23.Nc1 Nd6+/–) 23...Nd6 24.Nc1 Ba5 25.Ne2 (25.Qe2 Ne4+/–) 25...Nb5 26.e4 fe4 27.Rf8 (27.Be4 Rf1 28.Kf1 Na3+=) 27...Kf8 28.Be4 Na3 29.Qd3 (29.Bd5?? Nc2 30.Be4 Na1-+) 29...Qa2 30.Bc3 Nc4 31.Ng3 (31.Qd1 Ba6 32.Qf1 Ke7=) 31...Nd6 32.Qf1 (32.Bg6 Qc4 33.Bb2 Qb4=) 32...Ke7 33.Qc1 Ne4 34.Ne4 Qd5 35.Qe3 Bc3 36.Nc3 Qf5 37.Qe2 Kf7 38.Qb5 Qc2 39.Qf1 Kg6 40.Qe1 Qd3 41.Qe4 Qe4 42.Ne4 Ba6 43.Nc3 Bc4 44.Nd1 Bd5 45.Nf2 Kf5 46.Nd3 Bc6 47.Nf2 (47.Nb4 Bd5-+) 0–1. b4_player – opponent, gamecolony.com, 2007.

12.Bd3 c6 13.0-0 cb5 14.Nc3 b6 15.c6 Nc3 =.

12.Bd3 e5 13.c6 bc6 14.bc6 Bb4 15.Kf1 Nb6 16.Ne5 f6 17.Nf3 Qe7 18.Qc2 Bf5 19.Nh4 Bg4 20.h3 Be6 21.Bc3 (worse is 21.Be4 de4 22.Bc3 Bd6-/+) 21...f5 22.Nf3 Nc4 23.Kg1 Bd6 (worse is 23...Nc3 24.Nc3 Na5 25.Nb5+/–) 24.Nbd2 Ncd2 25.Bd2 Bf7 26.g3 Bh5 27.Kg2 Qe6 28.h4 h6 (worse is 28...Nd2 29.Nd2 Bb4 30.Nf3+/–) 29.Nh2 Qg6 30.Be1 Rb8 31.Rf1 Kh8 ½–½. Fels,Bernhard (2030) – Szoller,Terez (1760), BI–2009–F–00003, 2010.

12.Bd3 e5 13.c6 bc6 14.bc6 Nb6 15.de5 Bb4 +=.

11.Qc2 Nc5 12.Be2 Re8 (12...g6 13.0-0+=) 13.0-0+= Bg4 14.h3 Bh5 15.Rc1 Nfd7 (15...Bg6 16.d3+=) 16.Nc3= Nb6 17.Bb2 Nc4 18.Ba1 Nb6 19.d4 Ne4 20.Ne4 de4 21.Ne5 Be2 22.Qe2 Nd5 23.Qa2 Be7 (23...Bb4 24.Rb1 Bf8 25.Nc4=) 24.Bc3= f6 25.Nc4 Qd7 26.Bd2 b6 27.Rb1 Kf7 28.Qb3 (28.Qa4 Bd6=) 28...Ra8 29.Qc2 Qe6 30.f3 ef3 31.e4 fg2 32.Qd3 (worse is 32.Kg2 Ra4 33.Rc1 Rc4 34.Qc4 Qe4 35.Kg1 g5+=) 32...Ra4 33.ed5 Qd5 34.Rc1 Kf8 35.Bf4 Bc5 Attacks the isolani on d4 36.Be3 Be7 37.Bf2 Qb5 38.Qe4 Rc4 39.Qa8 Bd8 40.Qd8 Kf7 41.Re1 h5 42.Qe7 Kg6 43.Qe6 Rc2 44.d5 Rd2 45.Qe4 Kf7 46.Qe7 (worse is 46.Kg2 Qd5 47.Qd5 Rd5+=) 46...Kg6 47.Qc7 Qd5 48.Qg3 Kh7 49.Bb6 g5 50.Qc3 Kg6 51.Be3 Rd3 52.Qc8 h4 53.Qe8 Kh6 54.Qh8 ½–½. forsetinn (2355) – kostini (1875), gameknot.com, 2014.

11.Qc2 Qe7 12.Be2 Nc5 (12...Qe4 13.d3 Qe7 14.0-0=) 13.0-0 Bg4 (13...Bd7 14.Qa2 c6 15.d4=) 14.h3= Bd7 15.Be5 Be5 16.Ne5 Qe5 17.Qc5 Ne4 18.Qa7 Rc8 (18...b6!?=+) 19.d4+= Qg5 (19...Qe6 20.Qb7 Nd6 21.Qa6+=) 20.Qb7 Nd6 The isolani on b5 becomes a target 21.Qa6 Bh3 22.Bf3 Rd8 (22...Nc4 23.Qc6 Be6 24.Nc3+-) 23.Qc6+= Bd7 (23...Be6 24.Rc1 Bd7 25.Qc5 Nb5 26.Bd5+=) 24.Qc7+- Nb5 25.Qc5 Rc8 26.Qd5 Qd5 27.Bd5 Rc2 28.Be4 Rb2 29.Rc1 Kf8 30.Bf3 Ke7 31.g4 f5 (31...Kd6 32.Nc3+-) 32.gf5 Bf5 33.Nc3 Nc3 34.Rc3 g5 35.Rc5 Kf6 36.e4 Bg6 37.Rc6 Kf7 (37...Kg7 38.e5+-) 38.e5 h5 (38...Rb1!? 39.Kh2 Re1+-) 39.d5+- g4 40.Rc7 Ke8 41.Bg2 Kf8?? (better 41...Re2 42.d6 Re1 (42...Re5?? 43.Bc6 Kf8 44.Rc8 Kf7 45.d7 Re1 46.Kg2+-) 43.Kh2 Kd8+- (43...Re5?? 44.Bc6 Kf8 45.d7+-)) 42.d6+- Rd2 (42...Rb1 43.Kh2 Rd1 44.Bc6+-) 43.Bc6 Bf5 44.Bd7 Bd7 (44...Be4 45.Ba4 g3 46.fg3+-) 45.Rd7 Re2 (45...Rd5 46.Rh7 Re5 47.Rh8 Kg7 48.d7 Kh8 49.d8Q Kg7 50.Qd4+-) 46.Re7 Rd2 (46...h4 47.e6 h3 48.Rf7 Kg8 49.Rf6+-) 47.Rh7 Ke8 (47...Kg8 48.Rh5 g3 49.Rf5+-) 48.Kg2 Re2 (48...Kd8 49.Rh5 Re2 50.Kg3+-) 49.Rh5 Kd7 (49...Rd2 50.Kg3+-) 50.Kg3 Re4 (50...Ke6 51.Rh7 Re5 52.Re7 Kd6 53.Re5 Ke5 54.Kg4+-) 51.f4 gf3 52.Kf3 Rd4 53.Ke3 Rd1 54.Rh7 Ke6 (54...Kc6 55.Ke4+-) 55.Re7 Kd5 (55...Kf5+-) 56.d7 Kc5 57.e6 Kc6 58.Re8 (58.Re8 Kc5 59.d8Q Re1 60.Kf3 Rf1 61.Ke2 Rb1 62.Qa5 Kc6 63.Rc8 Kd6 64.Rd8 Ke6 65.Qd5 Kf6 66.Rd6 Kg7 67.Qe5 Kf7 68.Rd7 Kg6 69.Rg7 Kh6 70.Qg5) 1–0. forsetinn (2460) – crixos (2085), gameknot.com, 2015.

11.Be2 c5 12.0-0 b6 13.d3 Bb7 14.Nbd2 Qc7 15.h3 Re8 16.Re1 h6 17.Qb3 Nh7 18.Qb2 Ne5 Black plans c4 19.d4 (19.Rc1!?+=) 19...Nf3-/+ 20.Nf3 c4 21.Ne5 Nf8 (21...Ng5 22.Bh5-/+) 22.Qc2+= Nd7 23.Nd7 Qd7 24.Qb1 Qe7 25.Bc3 Ra8 26.Bf3 (26.Qc2 Ra3-/+) 26...Ra3 27.Bd2 Rb3 28.Qa2 Bb4 (better is 28...Qd7-/+) 29.Ra1?? (better is 29.Bb4 Qb4 30.Ra1-/+) 29...Ra3-+ 30.Qb2 Ra1 31.Qa1 Bd2 32.Qa7 Qc7 (better is 32...c3 33.Bd1 Qc7-+) 33.Bd5 c3 34.Bb7 (34.Qb7?? Qb7 35.Bb7 c2-+) 34...g6 35.Qa8 Kg7 36.Be4 c2 37.Bc2 Qc2 38.Qc6? (better is 38.Qd5-/+) 38...Qb1 39.Kh2 Qf5 (39...Qf1 40.Kg3 Be1 41.Qc2 Qb5 42.Qe4-+) 40.Kg1 Qb1 41.Kh2 Qf1 42.Kg3 Be1 43.Qf3 Qb5 44.d5 (44.h4 Bb4 45.Kh2 Qc4-+) 44...Qc5 (better is 44...Qb2!? 45.d6-+) 45.e4 (45.Qe4-+) 45…Qc7 (45...Qc7 46.Qf4 Bf2 47.Kf3 Qf4 48.Kf4 b5-+) 0–1. mr5reasons1 (1610) – karvik (1755), gameknot.com, 2013.

11.Be2 c5 12.bc6 bc6 13.0-0 c5 (13...Re8 14.Qc2 Qb6 15.Nc3=) 14.Qc2 (14.Nc3 Nb8=) 14...Qc7 Black plans c4 (14...Qe7 15.Nc3=) 15.Nc3 (15.Na3 Be7=) 15...Qa5 (15...Qc6 16.Nb5=) 16.Qb2 (16.Nb5 Ba6 17.Bc3 Qb6=) 16...c4 17.Nb5 Be7 18.g4 (18.d3!? cd3 19.Bd3+=) 18...Ba6 19.Nbd4 Rb8 (19...Ng4? 20.Nc6 Bf6 21.Qf6 (21.Na5?! Bb2 22.Bb2 c3 23.Ba6 cb2+-) 21...Ngf6 22.Na5+-) 20.Qc2 Qb6 (20...Qc7 21.Nf5 Bb4 22.g5=) 21.Nf5= Bf8 22.g5 (22.Bd4 Nc5 23.Ra1 Ng4 24.Ng7 Bc8+=) 22...Ne4-/+ 23.d3 (23.h4 Qg6 24.N3d4 Ndc5+=) 23...cd3 (23...Ng5 24.Ng5 Qg6 25.dc4 Bc4 26.Bc4 dc4 27.f4+=) 24.Bd3+= Qg6 25.N5h4 (25.Ba6 Qf5 26.Be2 Bd6+=) 25...Bd3-/+ 26.Qd3 Qe6 27.Ng2 (27.Rd1 Ra8 28.Qd4 Qg4 29.Kf1 Ra2-/+) 27...Ndc5 (27...Qf5 28.Qd1-/+) 28.Qd4 ½–½. Daghan,Devran (2000) – Guven,Oguz Kagan (1850), Turkish Cup, 2016.

11.Be2 Nc5 12.0-0 Re8 13.Nc3 h6 14.Na4 Bd7 (14...Ne6 15.b6=) 15.Nc5 Bc5 16.Be5 Ng4 17.Bg3 Bc8 18.Qc2 Bd6 19.Bd6 Qd6 20.Rc1 Re7 21.Qc5 (21.d4 Nf6+=) 21...Qc5 22.Rc5 Nf6 23.Nd4 Kf8 24.f4 g6 25.Bf3 Be6 26.h3 h5 27.Be2 (27.Ne6 fe6 28.g4 hg4 29.hg4 Ne8+=) 27...Ne4= 28.Rc2 Nf6 29.Bd3 White prepares f5 29...Kg7 30.f5 Bc8 31.Rc5 Kh6? (31...g5 32.Be2=) 32.h4 (32.b6!? Ne8 33.fg6 fg6 34.Bb5+-) 32...Kg7 33.fg6 fg6= 34.Ne2 Be6 35.Nd4 Bf7 36.Be2 Ne4 37.Rc2 Nd6 38.Bf3 Nc4 39.Kf2 Kf6 40.Be2 Nd6 41.Bd3 Ne8 42.Kf3 Ke5 43.g4 hg4 44.Kg4 Nf6 45.Kg5 Attacks the isolani on g6 45...Ne4 46.Be4 Ke4? 47.Kf6+- Rd7 48.Nb3 b6+= 49.Nd4 Kd3 50.Rb2 Be8+/– 51.Ne6 Rh7 52.Nf4 Kc4+= Exerts pressure on the isolated pawn 53.d3 Kc5? 54.Ke5+/– Bb5 55.Ne6 Kc6 56.Nd4 Kd7 57.Rb5 Rh5 58.Kf6 c5 59.Kg6 Rh4 60.Nf5 Rg4 61.Kh5 Rb4 62.Rb4 cb4 63.Nd4 Kd6 64.Kg5 Kc5 65.Nb3 Kb5 66.Kf5 Ka4 67.Nd2 b3 68.Ke5 Kb4 69.Kd4 b2 70.e4 de4 71.de4 b5 72.e5 Ka3 73.Kc5 b4 74.Nc4 (74.Nc4 Ka2 75.Nb2+-) 1–0. Taus,M (2125) – Kolar,St (2065), Orlova Open Orlova CZE, 2011.

11.Be2 Qe7 12.0-0= Qe4 (12...Nc5 13.Bd4=) 13.d4 (13.Bd4 Re8=) 13...Qg6 (13...Re8 14.Nc3 Qg4 15.Qc2=+) 14.Ne5 (14.Qd3 Qh6=) 14...Qg5 (14...Qf5 15.Bd3 Qg5 16.Nd2=) 15.Nd2= Re8 (< 15...Be5 16.de5 Ne4 17.Nf3+/–; < 15...Ne5 16.de5 Bh3 17.Bf3 Be5 18.Be5 Qe5 19.gh3+/–) 16.Ndf3 Qf5 17.Qb3 Nf8 (17...Nb6 18.Bd3 Qh5 19.Bc3=+) 18.Bb2 Ng6 (18...N8d7 19.Ra1+=) 19.Ra1 (19.Bd3 Qh5+=) 19...Qh5 (19...Ne5 A) 20.Ne5?! Ne4 (< 20...Be5 21.de5 Ne4 22.f3+=) 21.f3 Nc5 22.dc5 Be5=; B) 20.de5 Be5 21.Ne5 Re5 22.Bd3+-; < 19...Be5 20.de5 Ng4 21.Qd5 N4e5 22.Ne5 Ne5 23.Rc1+/–) 20.Bd1 (20.Ng6 Qg6 21.Bd3 Qh5+=) 20...Be6 (20...Qh6 21.Bc2+=) 21.Ra7+= Rb8 22.Ba3 Ne8 (22...Ba3 23.Qa3 Ne5 24.de5+=) 23.Bd6 Nd6 24.b6 c6 25.Nc6 (25.Qa3 Nc8 26.Nd3=) 25...bc6=+ 26.b7 Nb7 27.Rb7 Rc8 28.Rb8 Rb8 29.Qb8 Nf8 30.Ba4 Bg4 (30...c5 31.dc5 Qf5 32.Nd4+-) 31.Ne5+- (31.Bc6? Bf3 32.Qg3 Be4-+) 31...Qf5 (31...Be6 32.Nc6 g6 33.h3+-) 32.Qb3 Qc8 (better is 32...c5 33.f3 Bh5+-) 33.Ng4 (33.Bc6?! Be6 34.Qb5 Qc7+-) 33...Qg4 34.Bc6 Qc8 35.Qd5 Qa6 (35...Ne6 36.h3+-) 36.g3 Qa3 (36...Qb6 37.Kg2+-) 37.Kg2 Qe7 38.e4 (38...Ne6 39.Qe5+-) 1–0. Mehlhorn,U – Scharf,R, H–2076–D, 2000.

11.Bc4 b6 12.0-0 Bb7 13.d3 Qe7 =.

11.Bc4 b6 12.Ng5 Bb7=+ 13.Be6 (13.Nf3 Qe7=+) 13...fe6-/+ 14.Ne6 Qa8 15.Nf8 Kf8 (15...Bf8!? 16.Bf6 Bg2-/+ (16...Nf6?! 17.f3=)) 16.Bf6=+ Nf6 17.f3 Qa5 (17...Bd5 18.Qc2=+) 18.Qe2= c6 (18...c5 19.0-0=) 19.bc6 (19.Qd3 Qb4=) 19...Ba6=+ 20.Qd1 Nd5 21.Kf2 Nb4 22.g3 (22.Nc3 Qc5=+) 22...Qb5 23.Nc3 (23.Kg2 Qc6 24.Nc3 Bd3=+) 23...Nd3 (23...Qc6 24.Kg2=+) 24.Kg2 Qc6 25.Qc2 (25.Qa4 Qa4 26.Na4 b5=+) 25...Qc4 (25...Bc4 26.Ra1-/+) 26.Qa4 (26.Ra1 Bb7=) 26...Qa4=+ 27.Na4 b5 28.Rb1?? (better is 28.Nc3 b4 29.Ne4=+) 28...ba4-+ 29.Rb6 (29.Ra1 a3 30.h4 Bc4-+) 29…Nb4 (30.Rd6 a3 31.Rd8 Ke7-+) 0–1. Lea,Per – Soegaard,Werner, corr ICCF WT–II–207, 1976.

11.Bc4 Nb6 12.d3 =+.

11.Bc4 Nb6 12.Be2 Bd7 13.Nc3 (13.0-0 Qe7=) 13...c5 (13...Qe7 14.d4=+) 14.0-0 Qc7 Black prepares the advance c4 15.h3 (15.d4 cd4 16.Qd4 e5=) 15...c4 (15...Ra8 16.Qc2=) 16.Qc2 Nbd5 (16...Rc8 17.d3=) 17.Rc1 Nb4 18.Qb1 (18.Qb2 Be7=) 18...Ra8= 19.Ne4 (19.Bb2 Ra5=) 19...Ne4=+ 20.Qe4 Now all is on c4 20...Bb5 21.Qg4 (21.Be5 Be5 22.Qe5 Qe5 23.Ne5 Nd3 24.Bd3 cd3=+) 21...e5 (21...f5 22.Qh4 Nd3 23.Bd3 cd3-/+) 22.d3 (22.Rb1!?-/+) 22...Na2 (22...Ra2 23.Be5 Be5 24.Ne5 Qe5 25.dc4-+) 23.dc4?? (better 23.Rc2 c3 24.Ne1-+) 23…Nc1 (23...Nc1 24.Bf1 Ra1-+) 0–1. GuestDYZB – GuestMTSM, freechess.org, 2017.

11.Bc4 Nb6 12.Be2 Ne4 13.Qc2 f5 (13...Ng5 14.0-0=) 14.0-0 Nd5 15.Nc3 Ndc3 16.dc3 (16.Bc3 Nc3 17.Qc3 b6+=) 16...Qf6= 17.c4 Qg6 (17...e5 18.Rd1=) 18.g3 (18.Bd4 b6+=) 18...Qg4 (18...b6 19.Ne5 Qh6 20.Bf3=) 19.Ne5 Qh3 20.Bf3 g6 (20...Nf6 21.c5 Be5 22.Be5+-) 21.Bg2 Qh6 22.Be4 fe4 23.Qe4 Rf5 24.Ng4 Qh3 (24...Qf8+-) 25.Qd4 e5 26.Qd5 Kg7 (26...Rf7 27.Ne5 Be6 28.Qb7+-) 27.Be5 (27.Ne5 Be5 28.Be5 Kh6+-) 27...Be5 28.Ne5 Rf8 29.Qc5 c6 30.bc6 bc6 31.Qc6 Bg4 (31...Qf5 32.f4+-) 32.Ra1 (32.Ng4?! Qg4 33.f4 h6+-) 32...Be2 (32...Be6 33.Ra7 Kh8 34.Qc7+-) 33.Qb7 Kh8 (33...Kg8 34.Qd5 Kg7 35.f3 Bf3 36.Nf3+-) 34.Qb2 Kg8 35.Qe2 Qc8 (35...Qe6 36.f4 Rd8 37.Qf3+-) 36.Qa2 (36.Qg4 Qg4 37.Ng4 Rc8+-) 36...Qe6 (36...Qf5 37.c5 Kg7 38.Qb2+-) 37.c5 Qa2 38.Ra2 Rc8 39.c6 Rc7 (39...g5 40.Ra7+-) 40.Rb2 Re7 (40...Rc8+-) 41.Rb8 Kg7 42.Rb7 Kf6 43.Re7 Ke7 44.c7 g5 45.c8Q (45.c8Q g4 46.Qd7 Kf6 47.Ng4 Kg5 48.Qe6 h6 49.f4 Kh5 50.Qf5; 45.f4 gf4 46.ef4 Ke6 47.c8Q Kd5 48.Qc6 Kd4 49.Qc4 Ke3 50.Qd3) 1–0. DEFFM – GuestJZVM, freechess.org, 2018.

11.Bc4 Nb6 12.Be2 Qe7 13.0-0 e5 14.d3 Bd7 15.Nc3 Ra8 16.Bb2 h6 (16...Nfd5 17.Nd5 Nd5 18.Qb3=+) 17.h3 (17.Qc2 Bf5=) 17...Qe6 18.d4 e4 19.Nd2 (19.Ne5 Be5 20.de5 Qe5=) 19...Nbd5=+ 20.Bc4 Nc3 The isolani on b5 becomes a target 21.Be6?? (better 21.Bc3 Qf5 22.Qb1=+) 21...Nd1-+ 22.Bf7 (22.Bd7 Nb2 23.Bf5-+) 22…Kf7 (22...Kf7 23.Rd1 Ra2-+) 0–1. Zaichenko,Andrey – Agustin,Santos, FICGS, 2008.

11.Bc4 Qe7 12.0-0 Nb6 13.Be2 e5 14.d4 e4 15.Ne5 Nfd7 16.Nd7 Bd7 17.Qc2 f5 18.Nd2 Be6 19.Bb2 Bd5 20.g3 Ra8 21.Ra1 Ra1 22.Ba1 Qe6 23.Bc3 Nc4 24.Bc4 Bc4 25.Qa4 Bd5 26.Bb4 Bb4 27.Qb4 Kf7 28.Qc5 c6 29.h4 (29.b6 f4=) 29...cb5=+ 30.Qb5 Qc6 31.Qc6 Bc6 32.Nc4 Ke6 33.Nb6 Bb5 34.Kg2 Be2 35.Kh2 Kd6 36.Kg2 Kc6 37.Na4 (37.Nc8 g6-/+) 37...b5 38.Nc3 Bd3 39.f3 b4 40.Na4 b3 41.Kf2 (41.Nb2 Kb5 42.Kf2 Kb4-+) 41...Kb5-+ 42.Nc3 (42.Nb2 Kb4 43.Nd1 Ka3-+) 42...Kb4 43.Nd1 ef3 44.Kf3 Bc2 45.Nb2 Be4 46.Ke2 (46.Kf2-+) 46...Kc3 47.Nd1 Kc2 (47...Kc2 48.Ke1 Bf3-+) 0–1. DEFFM – GuestZBKZ, freechess.org, 2017.

12.0-0 e4 13.Nd4 Bh2 14.Kh2 Ne5 15.Be2 Nfg4 16.Bg4 Ng4 17.Kg3 h5 18.Rh1 h4 19.Rh4 Qd6 20.f4 ef3! 21.Kf3 Qf6 22.Ke2 Qh4 23.Qf1 c6! 24.bc6 (24.Na3 Qh5 25.Qf3 Re8-+) 24...bc6 25.Nf5 (25.Nc6 Qh5 26.Ne7 Kh7 27.Qf3 Qb5 28.d3 Qb1 29.Bc3-+) 25…Qg5 0–1. purplegadge (1775) – glovio (2255), gameknot.com, 2014.

12.0-0 e4 13.Nd4 Bh2 14.Kh2 Ne5 15.Bf7 Rf7 16.Kg1 Nfg4 17.f3 ef3 18.Nf3 Nf3 19.Rf3 Qh4 20.Rf7 Qh2 21.Kf1 Qh1 (21...Kf7?! 22.Qf3 Kg6 23.Qh3-+) 22.Ke2 Qg2 23.Kd3 Kf7 24.Kc4 (24.Kc3 Bf5 25.Na3 h5-+) 24...Be6 25.Kb4 b6 26.Qc2 (26.Na3 Qd5 27.Qf1 Nf6 28.Nc4-+) 26...c5 27.bc6 Ne3 28.Qh7 (28.Qa4 Qe4 29.Kb5 Qb1 30.Ka6 Qd3 31.Ka7-+) 28...Qg4 29.Ka3 Nc4 30.Kb4 (30.Kb3 Ne5 31.Kb2 Bf5 32.Qf5 Qf5-+) 30...Ne5 31.d4 Qd1 32.Kc3 Qf3 33.Kb2 Nc4 34.Kc1 Qf1 35.Kc2 Bf5 (35...Bf5 36.Qf5 Qf5 37.Kc1 Qf1 38.Kc2 Ne3 39.Kb2 Qb5 40.Ka2 Qc4 41.Kb2 Nd1 42.Ka3 b5 43.Nc3 b4 44.Ka4 Nc3 45.Bc3 bc3 46.Ka5 c2 47.Kb6 c1Q 48.d5 Qd5 49.Ka7 Qcc6 50.Kb8 Qb7) 0–1. GuestWPTY – GuestBRTX, freechess.org, 2019.

12.Qc2 e4 13.Ng5 Nb6 14.Bb3 (worse is 14.Ne4 A) worse is 14...Nc4 15.Nf6 (worse is 15.Qc4 Ne4 16.Qe4 Re8+=) 15...gf6 16.Qc4+= ; B) 14...Ne4 15.Qe4 Re8-/+) 14...Bf5 15.Nc3 Increases the pressure on e4 15...Qd7 (15...Be5!? 16.f3 Bg6=) 16.0-0+= Qe7 17.f3 Qe5 18.f4 Qe7 19.Ne2 Nh5? (19...Bd7 20.Ng3 h6 (worse is 20...Bb5 21.Bf6 Qf6 22.N3e4+-) 21.N3e4 Ne4 (21...hg5?? 22.Nf6 Qf6 23.Bf6+-) 22.Ne4 Be6+-) 20.Nd4+- Bg6 21.g4 Nf6 (21...Nf4 22.ef4 h6 23.Nf7 Rf7 24.Bf7 Bf7 25.Nf5+-) 22.f5 Bh2 (22...Ng4?? 23.fg6 Bh2 24.Kh1 hg6 25.Nf7+-) 23.Kg2 (23.Kh2?! Ng4 24.Kh3 Qg5 25.fg6 Qh5 26.Kg3 Qh2 27.Kg4 Qg2 28.Kh4 Qh2 29.Kg5 Qg2 30.Kh4 Qh2 31.Kg4 Qg2 32.Kh4=) 23...Ng4 24.Ne4 (24.fg6 Qg5 25.Bf7 Kh8-+) 24...Bh5 (24...Nd7 25.fg6 hg6+-) 25.f6! Qd7 (25...Nf6 26.Kh2 Deflection; 25...gf6 26.Nf5 Decoy) 26.Nc5 Qc8 (26...Bg6 27.Nd7 Bc2 28.Nc2 gf6 29.Nf8 Kf8 30.Bf6 Be5+-) 27.Nf5 Re8 28.Ne7 Re7 29.fe7 Nf6 30.Bf6 Qe8 31.Ne4 Bg6 32.Kh2 Nc8 33.Qc7 Ne7 34.Nd6 gf6 35.Ne8 Kf8 36.Nf6 h5 37.Qd8 Kg7 38.Qe7 b6 39.Rg1 h4 40.Kh3 Kh8 41.Qf8 1–0. usingprogram (2010) – diagol (1875), kurnik, 2011.

12.d4 e4 13.Ne5 Qe7 14.Nd7 Nd7 15.Qh5 Nb6 16.Bb3 Bb4-+ 17.Ke2 Be6 18.d5 Bd7 19.f4 Bb5 20.Kf2 Bc4 21.Bc4-/+ Nc4 22.Rc1 b5 23.Nc3 Bc5 24.Re1 b4 25.d6 Qd6 26.Nd5 f6 27.Rd1 Qe6 28.Nc7? Be3-+ (29.Ke2 Qf7 30.Qf7 Rf7 31.Rd8 Rf8-+) 0–1. Rodriguez,Alberto2 (2310) – Panno,Oscar (2520), Buenos Aires BCA, 1987.

10.Bc4 0-0 11.0-0 e5 12.d4 e4 13.Nfd2 Nb6 14.Be2 Re8 15.Nc3 Bd7 16.h3 Qc8 17.Qb1 The pressure on e4 grows 17...Bf5 18.Rc1 Qd7 19.Bf1 Qe7 20.Ne2 Nfd5 21.g3 Qg5 22.Bg2 Ne3! 23.Ne4 (23.fe3 Qe3 Double attack) 23...Qh6 (23...Ng2?! 24.Ng5 Bb1 25.Rb1 Re2 26.Kg2+=) 24.g4?? (better is 24.Bf3 Ned5 25.Re1-+) 24...Ng2 25.gf5 Qh3 26.N2g3 Nh4 0–1. Morriss,P (2010) – Madynski,P (2070), Dublin IRL, e2e4 Masters, 2013.

10.Bc4 0-0 11.Nc3 b6 12.0-0 Bb7 13.d4 Qe7 14.Bb2 Ra8 15.Qb3 Nf8 16.d5 (16.Re1 Ng6 17.e4 Ba3=) 16...ed5 17.Nd5 Nd5 18.Bd5 Bd5 19.Qd5 Ra5 20.Qd3 Qd7 Attacks the isolani on b5 21.Bc3?? (better 21.Nd4=) 21...Bh2!-+ 22.Nh2 (22.Nh2 Qd3 Discovered attack; 22.Kh2 Qd3 Discovered attack) 22…Qd3 (22...Qd3 23.Ba5 ba5-+) 0-1. onur604 (2320) - DesecH2k (2175), lichess.org, 2020.

10.Bc4 0-0 11.d4 =.

11.d3 Nc4 12.dc4 b6 13.0-0 Bb7 14.Be5?? Bf3-+ 15.Bf6 Bh2! (16.Kh2 Qd1 (16...Bd1? 17.Bd8 Be2 18.Re1+-) 17.Rd1 Bd1 18.Bg7 Rg8-/+; 15...Bd1?! 16.Bd8 Be2 17.Re1-/+; 15...Qf6?! 16.Qf3 Qf3 17.gf3=+) 0–1. Buss,Michael – Dyer,Darryl, USCF85CC211, 1985.

12.0-0 Nfd5 13.Nc3 (13.e4 Nb4 (13...Nf4 14.Bd4 Nd7 15.e5 Be7 16.Bc4 f6 17.ef6 Bf6 18.Qe1 Kh8 19.Be3=) 14.e5 Be7 15.Bd4 c5 16.Be3 N6d5 17.Nc3 Ne3 18.de3 Qb6 19.Qb3=) 13...Nc3 (13...Bd7 14.Ne4 Bb4 15.Qc2 f6 16.Bd4 c6 17.bc6 Bc6 18.Bc5 f5 19.Neg5+=) 14.Bc3 Nd5 15.Bd4 Qe7 16.Qb3 Rd8 17.Rd1 Bd7 18.Ra1 c5 19.bc6 =.

12.0-0 Nbd7 13.d4 Nb6 (13...Nd5 14.Nc3 N7f6 15.Ne5 Qe7 16.Bc4 Rd8 17.Qf3 Nc3 18.Bc3 Nd5 19.Bd5+=) 14.Qc2 Nbd5 15.Ne5 Bd7 16.Nd2 Qe8 17.Rb1 Bb4 18.e4 Bd2 19.ed5 =.

13.Bb2 Bd7 14.Be5 Qe7 15.d4 Ra8 16.Qc2 c6 17.Bd6 Qd6 18.Ne5 cb5 19.Nd2 =.

13.Qb3 Qd7 14.Be5 b6 15.Nc3 Bb7 16.Ra1 Ra8 17.Ra8 Ba8 18.Nd5 Bd5 19.Qb2 =+.

13.Qc1 Bd7 14.Be5 Qe7 15.Nc3 Ra8 16.d4 Ra3 17.Bd6 Qd6 18.Nd5 ed5 19.Qc2 =.

13.Qe1 c6 14.bc6 bc6 15.Be5 Bb7 16.Nc3 c5 17.d4 Be5 18.de5 Nd7 19.Na4 =+.

13.Be5 Re8 14.d4 Ng4 15.Bd6 Qd6 16.e4 Nf4 17.e5 Qb4 18.h3 Nh6 19.Bd3 =.

13.Qc2 c6 14.Be5 Qe7 15.d4 cb5 16.Qb3 Bc6 17.Rc1 Rc8 18.Nbd2 b4 19.e4 =.

13.Qc2 Nbd5 14.Be5 Qe8 15.Bd6 cd6 16.Qb3 e5 17.d4 e4 18.Nfd2 Qe6 19.Bc4 +=.

13.Qc2 Nfd5 14.Be5 Be5 15.Ne5 Qe8 16.Nd7 Qd7 17.d4 Ra8 18.Nc3 Nc3 19.Qc3 Ra2 =.

13.Qc2 Nfd5 14.Be5 Be5 15.Ne5 f6 16.Nd7 Qd7 17.d4 Ra8 18.Rc1 Nb4 19.Qc5 =.

13.Qc2 Qe7= 14.Be5 Rc8 15.d4 c6 16.bc6 Bc6 17.Qb3 Nbd7 18.Bd6 Qd6 19.Nbd2 Bd5 =.

13.Nc3 e5 14.e4 Bg4 15.d4 ed4 16.Nd4 Qd7 17.Bg4 Ng4 18.h3 Nh2 19.Re1 Be5 +=.

13.Nc3 Qe7 14.e4 (14.Qc2 Ra8= 15.Ne4 Ne4 16.Qe4 Nd5 17.Be5 Be5 18.Qe5 f6 19.Qb2 Qa3=; 14.d4 Nbd5 15.Qc2 Nb4 16.Qa4 c5 17.dc5 Bc5 18.Ne5 Rd8 19.Bf3 Be8+=) 14...e5+= 15.d3 (15.Bb2 Bg4 (15...Ra8= 16.d4 ed4 17.Qd4 Bc5 18.Qe5 Be6 19.Qg3 Ba3=) 16.Qc2 Ra8 17.Rd1 Qe6 18.Ng5 Qd7 19.Bg4 Ng4=; 15.Re1 Rd8 16.Qc2 Bg4 17.Bb2 Bf3 18.Bf3 Ba3 19.Ba1 Bb4+=) 15...Ra8 (15...Bg4 16.d4 ed4 (16...Rd8 17.d5= Bc5 18.Qc2 Ra8 19.h3 Bh5=) 17.Qd4 Re8 18.h3 Bd7 19.Rc1 Ba3+=; 15...Rd8 16.Qc2 Bg4 17.Bb2 Bf3 18.Bf3 Ba3 19.Ba3 Qa3+=) 16.Qc2 (16.d4 ed4 17.Qd4 Re8 (17...Bc5= 18.Qd3 Be6 19.Qc2 Ng4+=) 18.Rc1 Bg4 19.h3 Bh5+=) 16...Ra5 (16...Bc5 17.Bb2 (17.Rc1+= Ra5 18.Bb2 h6 19.Nd1 Bd6+=) 17...Ng4 18.h3 Nf6 19.Rc1 Ra7=) 17.Rb1 (17.d4 ed4 18.Nd4 Bh2 19.Kh2 Qe5+=) 17...Bc5 (17...Bg4 18.Nd2+= (18.h3 Bf3 19.Bf3 Bc5+=) 18...Be2 19.Ne2 Qe8+=) 18.Nd1= Bd6 (18...Bb5 19.Be5 Bc6=) 19.Ne3 (19.Nc3 Bg4+=) 19...Rb5 20.Rb5 Bb5 21.Nf5 Qe8 22.Qb2 (22.Nd6 cd6 23.Qc7 Qc6 24.Qd8 Ne8-/+) 22...Na4-/+ 23.Qc2 (23.Qc1 h6 24.Bf1 Qe6-/+) 23...Bd7 24.Ne3 (24.Nd6 cd6 25.Qc7 Qc8 26.Qd6 Qc1 27.Bf1 Qa1 28.Qb8 Ne8 29.Ne5 Bb5-+) 24...b5 25.h3 c5 26.Bd1 g6 27.Qb1 Nb6 28.Qb2 Nh5 29.Ne5 f6? 30.Nd7+- Qd7 31.Bh5 Be5 32.Qa2 Kg7 33.Be5 fe5 34.Bg4 Qc7 35.Nd5 (35.Nd5 Nd5 36.ed5+-) 1–0. Bulcourf,Carlos (2165) – Ayala,Gustavo, LNA Copa Puma, Argentina ARG, 2007.

13.Bd4 c5 14.Be5 Be5 15.Ne5 Qc7 16.d4 Rc8 17.Na3 Nbd5 18.Qd3 cd4 19.Qd4 =.

13.Bd4 c6 14.Nc3 Nbd5 15.Qa1 Nc3 16.dc3 cb5 17.Rd1 Qc7 18.c4 Bc6 19.cb5 +=.

13.Bd4 Nbd5 14.Nc3 c5 15.Be5 Qb6 16.Bd6 Qd6 17.e4 Nc3 18.dc3 Qf4 19.e5 +=.

10.Qc2 0-0 11.Bf6 Qf6 12.d4 =.

10.Qc2 e5 11.Be2 (11.c5 Bc7=) 11...0-0 12.Nc3 (12.c5 Nc5 13.Be5 cb5 14.Bd6 Qd6=) 12...Re8 13.bc6 bc6 14.cd5 cd5 15.0-0 Nf8 (15...e4 16.Nd4=) 16.Nb5 Bb8 (16...Bg4 17.Rc1=) 17.Rc1 (17.d4 e4 18.Ne5 Bf5=) 17...Bg4 18.h3 Bf3 (18...Bh5 19.d3=) 19.Bf3 Ne6 20.Bb2 (20.Be2 Qd7=) 20...Ng5 21.Be2+= Nge4 22.d3 Nd6 23.d4 e4 24.Ba3 h5 25.Qc5 Re6 26.Na7 Ba7 27.Qa7+/– Nde8 28.Rb1 Rc6 29.Rb8 Rc8 30.Be7 Rb8 31.Bd8 Rd8 32.g4 hg4 33.hg4 g5 34.Qe7 Rd6 35.Qe5 Re6 36.Qg5 Kf8 37.Qf4 Ng8 38.Qb8 Kg7 39.Qd8 Nd6 40.Qg5 Rg6 41.Qd5 Nh6 42.Qe5 Kg8 43.Kf1 Kf8 44.g5 Nhf5 45.Qf4 Kg7 46.Bg4 Ne7 47.Qe5 Kf8 48.Qa5 f5 49.Qd8 Kf7 50.Bh5 (50…Ndc8 51.Qh8+-) 1–0. pcmvr (2870) – ostefrec (2405), net–chess.com, 2008.

10.Nc3 0-0 11.bc6 bc6 12.Nd4 Bb7 (12...Qb6 13.cd5 cd5 14.Qb3=+) 13.Be2 (13.cd5 cd5 14.Be2 Qa5=+) 13...Bb8 (13...dc4 14.Bc4 Ne5 15.Be2=+) 14.cd5= cd5 15.f4 (15.0-0 e5 16.Ndb5 Qe7=) 15...e5 16.fe5 Ne5 (16...Be5 17.0-0=) 17.0-0 Ne4 (17...Nc4 18.Nf5 Be5 19.d4=) 18.Qe1 (18.Qb3 Qc7 19.Ne4 de4+=) 18...Qd6 (18...g6 19.Qb1 Qc7 20.Ne4 de4 21.Rc1=) 19.Ne4 de4 20.Qh4 (20.Qg3 Bc8=) 20...Ng6 (20...g6 21.Rc1=) 21.Qh5 Ne7 (21...Ba6 22.Ba6 Qa6 23.Bc3=) 22.Bc3 Ba6 23.Ba6 Qa6 24.Nf5 (24.Rb1 Bd6=) 24...Nf5= 25.Qf5 Qg6 (25...g6 26.Qe4 Bh2 27.Kf2 Bg3 28.Kg1 Bh2 29.Kf2 Bg3 30.Kg1 Bh2=) 26.Qg6 hg6 27.Rb1 Re8 28.Kf2 g5 (28...f6 29.Rb5=) 29.h3 Kh7 30.Rb7 (30.Bd4 Kg6=) 30...Kg6 31.Rd7 Be5 32.Be5 Re5 33.g4 Kf6 34.Kg3 Ke6 35.Rd4 g6 36.h4 gh4 37.Kh4 f6 38.Kg3 g5 39.d3 ed3 40.Rd3 Ra5 41.Kf3 f5 42.Rb3 fg4 43.Kg4 Ke5 ½–½. Welling,Gerard (2390) – Slobodjan,Roman (2520), Bayern–chI Bank Hofmann 6th, 2002.

10.Nc3 0-0 11.Be2 Re8 12.Qc2 c5 13.g4 dc4 14.g5 Nd5 15.Ne4 Bf8 16.Rg1 b6 17.Ne5 Ne5 18.Be5 Nb4 19.Qc4 Qd5?? (better is 19...Bb7+=) 20.Nf6 (better is 20.Bg7!? Be7 21.Nf6 Bf6 22.gf6 (22.Bf6?! Bb7+-) 22...Qc4 23.Bh6 Kh8 24.Bc4+-) 20...gf6+/– 21.gf6 Kh8 22.Qg4 Nc2?? (22...Bh6 23.Qh5 Rg8 24.Rg8 Kg8+-) 23.Kf1+- Bh6 24.Qh5 Qd2 25.Qh6 (worse is 25.Qf7 Qe1 26.Kg2 Rg8 27.Qg8 Kg8 28.Re1 Ne1 29.Kf1 Nc2+=) 25...Qe1 26.Kg2 Rg8 27.Qg7! Rg7 28.fg7 Kg8 29.Re1 Ne1 30.Kg3 Bd7 31.Kg4 Nc2 (31...Be8+-) 32.Kg5 Na3? (32...c4+-) 33.Kf6 Bb5 (33...Be8 34.Ke7 f6 35.Bf6 Bg6+-) 34.Bh5 Be8 35.Ke7 f6 (35...Nb5+-) 36.Be8 (36.Ke8? fe5 37.Ke7 Kg7 38.Ke6 c4-+) 36...fe5 (36...Nc4 37.Bf6 Nd6 38.Kd6 c4 39.Ke6 h5 40.Bf7 Kh7 41.g8Q Kh6 42.Qg6) 37.Kf6 1–0. Steffens,Olaf (2285) – Elgersma,Simon (2095), Atlantis Open, 2015.

10.bc6 bc6=+ 11.Qa4 Qb6 12.Nc3 0-0 13.cd5 (13.d4 Bb4 14.Nd2 c5=+) 13...cd5=+ 14.Be2 Bb7 (14...Nc5 15.Qc2=+) 15.0-0= Ra8 16.Qh4 Ba6 (16...e5 17.Rc1=+) 17.Ba6 (17.d3 e5 18.Rb1 Qc6=+) 17...Qa6-/+ 18.Bb2 Qd3 19.Nd1 (19.Qd4 Nc5-/+) 19...e5 20.Bc3 h6 (20...Ra2 21.Qg3-/+) 21.Ne1 (21.Nb2 Qc2-/+) 21...Qb1 (21...Qe4 22.Qg3-/+) 22.Nf3 Qd3 (22...Qf5 23.Nb2-/+) 23.Ne1 Qe2 24.Nf3 Rc8 (better is 24...Ra2-/+) 25.Qa4? (better is 25.Qg3=+) 25...Qd3?? (better is 25...e4 26.Bf6 Nf6-+) 26.Ne1?? (26.Nb2 Nc5 27.Nd3 Na4 28.Be5 Be5 29.Nde5 Ne4+/–) 26...Qf5?? (better is 26...Qc4 27.Qc4 Rc4-/+) 27.Qa6+/– Rb8 28.Qd6+- Rb1 29.Nb2?? Ne4 30.Qd5+/– ½–½. Haralambof,Vladimir – Haygarth,Michael J, Tel Aviv, 1964.

10.bc6 bc6 11.cd5 ed5 12.Be2 0-0 13.0-0 Qc7 14.g3 (14.Qc2 Re8=) 14...Ne5 (14...Bb7!?+=) 15.Be5= Be5 16.Ne5 Qe5 17.f4 (17.Qc2!?=) 17...Qd6+= 18.Bf3 (18.Qc2 Bg4 19.Bg4 Ng4+=) 18...Bf5 19.g4 (19.Nc3 Ra8+=) 19...Bd3 (19...Ng4 20.Bg4 Qg6 21.Qf3-+) 20.Rf2 (20.Be2 Be2 21.Qe2 d4-/+) 20...d4 21.g5?? (better is 21.ed4 Qf4 22.Nc3 Qd4 23.Qa4-/+) 21...Rb8-+ 22.Qa4 Rb1 23.Kg2 Ne4 24.Be4 (24.Qd4 Qd4 25.ed4 Nf2 26.Kf2 Bb5-+) 24...Be4 25.Kg3 Rg1 26.Kh4 h6 27.Qd4 (27.Qa8 Kh7 28.Qe8-+) 27...hg5 28.fg5 Qe7 29.Kh3 Qe6 0–1. Illosvay,Istvan Tibor – Vince,Viola (1835), HUN–chT2 Asztalos, 2007.

10.d4= 0-0 11.c5 Be7 12.b6 Re8 13.Be2 Ne4 14.0-0 Bf6 (14...e5 15.Nbd2= (< 15.Ne5 Ne5 16.de5 Nc5-/+)) 15.Nbd2+= Nd2 16.Nd2 e5 17.Nb3 e4 18.Bc3 Nf8 (18...Bh4 19.Qd2+=) 19.Qc2 Ng6 20.Ra1 Qd7 21.h3 Be7 22.Ra7 Nf8 23.Na5 Ne6 24.Ba6 (24.Qb3 Rf8+/–) 24...Nd8 25.Qe2 Bf6 26.Qh5 Re7 27.g4 (27.Be2 g6 28.Qg4 Qg4 29.hg4 Be6+/–) 27...Qe6 (27...Qe8 28.Ra8 Qd7 29.Nb7 Nb7 30.g5 Bg5 31.Qg5+/–) 28.Be2 g6 29.Qh6 Bg7 30.Qf4 Rd7?? (better is 30...h5+/–) 31.Qb8+- Re7 32.Ba6! Re8 (32...ba6 33.Re7) 33.Nb7 Nb7 34.Bb7 (34.Rb7 Bb7 35.Qb7 Bf6+=) 34...Bd7? (better is 34...Bb7 35.Qb7 Bf6+-) 35.Qc7 Bf6 36.Ba6 Bc8 37.Bc8 Rc8 38.Qc8!! Qc8 39.b7 (39...Qb7 40.Rb7+-) 1–0. Merkl – Stummerer, corr SOK–87–11, 1989.

10.d4= Bb4 11.Bc3 Bc3 12.Nc3 c5 =.

10.d4= Bb4 11.Nbd2 Qa5 12.Bd3 dc4 13.Bc4 cb5 14.Bd3= 0-0 15.0-0. Geisensetter,Kurt – Woll, corr DDR M794, 1985.

10.d4= Bb4 11.Nbd2 Qa5 12.Bd3 dc4 13.Bc4 Ne4 14.Bb2 =+.

10.d4 Bb4 11.Nbd2 Qa5 12.Bd3 dc4 13.Bc4 Ne4 14.Ke2 Ndf6 (better is 14...Nd2!? 15.Nd2 cb5=) 15.Ne4+= Ne4 16.Bd3 f5 (16...Nf6 17.bc6 bc6 18.Qc2+=) 17.Qb3 0-0 18.Rb1 (18.Rc1 Bd2 19.Rb1 Bc3 20.Be4 Ba1+/–) 18...Bc3 (18...Bd6 19.Kf1+=) 19.Be4+/– fe4 20.Bc3 ef3 21.gf3 Qc7 22.Rg1 (22.bc6 Qc6 23.e4 Qc7+/–) 22...Rf7 (22...cb5 23.d5 g6 24.de6+=) 23.Bb2 (23.bc6 Qc6 24.e4 b6+/–) 23...Qh2= 24.Rg3 Qh5 25.b6 Bd7 (25...Qd5 26.Qd5 ed5 27.e4=) 26.Ba3 (26.Qa4 h6+=) 26...e5 (26...Qa5 27.Qb4 Qd5 28.e4 Qa2 29.Ke3+=) 27.Qa4+= h6 28.Qa8 Kh7 29.Qb7 e4 (29...ed4 30.Qa6 (30.ed4?? Qb5 31.Kd2 Qa5 32.Ke2 Qa3-+) 30...de3 31.Qd3 Bf5 32.Qe3-/+) 30.Qa6= Bc8 31.Qc4 Rf3 32.Rf3 Qf3 33.Ke1 h5 34.d5 Qh1? 35.Kd2+- Qb1 36.dc6 Qb6 37.Qe4 Kh6 38.Qf4 Kh7 39.Qe4?? Kh6 40.Qd5 Qb1 41.e4 h4 42.Qd6 Kh7 43.Qe5 Qa2 44.Bb2 Qf7 45.f4 h3 46.f5 Qf6 47.Ke2 Qh6= 48.Qh2 Ba6 49.Kf3 Qh5 50.Kg3 Qg5 ½–½. Kliavins,Janis – Randviir,Juri, Vilnius, 1955.

10.d4 dc4 11.bc6 Nb6 =.

10.Be2 0-0 11.d4 dc4 12.bc6 Nb6 =+.

10.Be2 0-0 11.h3 dc4=+ 12.Bc4 Nb6 (12...cb5 13.Bb5 e5 14.d3=+) 13.Be2 Bd7 (13...cb5 14.Bb5 Nbd5 15.Ne5=+) 14.bc6 (14.Be5 Be5 15.Ne5 cb5=+) 14...Bc6 15.0-0 Qc7 (15...Re8 16.d4=+) 16.Nc3 (16.Bf6 gf6 17.Qb3 Ra8=) 16...Nbd5 17.Nb5 Bb5 18.Bb5 Rc8 19.Qb1 Qc2 20.Bd3 Qb1 21.Rb1 Nb4 (21...Rc7=) 22.Bf6 (22.Bb5 Nfd5=) 22...gf6 (22...Nd3!? 23.Bc3 Rb8=+) 23.Bf1 Kf8 (23...Rc2 24.d4=) 24.g3 (24.d4 Rc2=) 24...Rc2 25.Be2 b6 26.Kf1 Ke8 27.Ke1 e5 28.Kd1 Rc8 29.Nh4 Bf8 30.Bg4 Rb8 31.Bf5+/– h6 32.Be4 Kd7 33.Nf5 Ke6 34.Nh6! Bh6 35.Rb4 f5 36.Bc2 Bf8 37.Ra4 Bd6 38.Bb3+- Kf6 39.Ra7 Be7 40.Ke2 e4 41.h4 b5 42.h5 Rh8+/– 43.Ra6 Kg7 44.Rb6 b4+= 45.h6 Rh6 46.Rh6 Kh6 47.Bf7 Kg5 48.d3 Kf6 49.Bg8 ed3 50.Kd3 Bd6 51.Ke2 Be5 52.Kf3 Bc3 53.g4 fg4 54.Kg4 Bd2 55.Kf4 Bc3 56.Ke4+/– Bd2 57.Bb3 Bc1 58.f4 Bb2 59.Kf3 Bc3 60.Ke4 Bb2 61.Kd3 Ba1 62.Kc2 Bc3 63.Ba2 Ba1 64.e4 Bc3 65.Bg8 Ba1 66.Kb3 Bc3 67.Kc2 Ba1 68.Bh7 Bc3 69.Kd3 Bb2 70.Bg8 Ba1 71.Kc4 Bc3 72.Kd3 Bb2 73.Ba2 Bc3 74.Bb3 Bb2 75.Kc4 Bc3 1–0. Saarenpaeae,Toivo – Ostrohov,Juri, Helsinki We HSK, 1996.

10.Be2 Qc7 11.0-0 e5!? 12.bc6 bc6 13.cd5 Nd5 =.

10.Be2 Qc7 11.0-0 Rg8 12.bc6+= (White is in command) 12...bc6 13.cd5 cd5 14.Nc3 Qc6 15.Bb5 Qc7 16.Bd3 Qc6 17.Nd4 Qb7 18.Ncb5 Bb8 19.Qc2 Ne5 20.Be2 (< 20.Bh7 Rh8 21.f4 Neg4+=) 20...Bd7 21.f4 Nc4 22.Rb1 Ke7 (22...Nb6!?+/–) 23.Bc4+- Rc8?? (better is 23...dc4 24.Qc4 Qd5 25.Qb4 Bd6 26.Nd6 Qd6 27.Qd6 Kd6+/–) 24.Nd6 Qb1 25.Qb1 Bd6 26.Bd3 Rb8 27.Qc2 Rc8 28.Bc3 h6 29.Ba6 Rb8 30.Nf3 Ne4 31.Bg7 f6 32.Bh6 Rh8 33.Bg7 Rh7 34.Bf6 Nf6 35.Ne5 Rh8 36.Ng6 (36...Ke8 37.Nh8+-) 1–0. pierred – chessmistress2003, Yahoo, 2005.

10.c4 dc4 11.Bc4 Nb6 12.Bd3 Nfd5 13.0-0 Qe8 (13...Nb4 14.Be2=) 14.Nc3 f6 (14...Nb4 15.Be2=) 15.Ne4+= Be7 16.Nc5 Bd6 (16...Qh5 17.Qd2 Bd6 18.Bb2+=) 17.Qb3+= f5 (17...Nd7 18.Rc1+=) 18.Ne5 Qe7 19.Rc1 f4 (19...Rd8 20.Bb2+=) 20.e4+/– f3 21.g3 Qg5 22.Re1 (22.Rc2 Nf4+=) 22...Nf4 23.Bf1 Be5 24.de5 Qg4 25.Kh1 Ne2 26.Bb2 h5 27.Be2 fe2+= 28.Kg2 h4 29.f3 h3 30.Kf2 Kh7 31.Bd4 Rf7 32.Ke2+- Qh5 33.Rf1 Qg6 34.f4 Rf8 35.Rc1 Rd8+/– 36.Be3 Rf8 37.Kf2 (37...Kg8 38.Kg1+-; 37.Nd3 Qe4 38.Nf2 Qd5 39.Qc2 Kg8+-) 1–0. Borrmann,Fritz – Baer,Werner, TT–17 ETC, 2005.

10.c4 dc4 11.Bc4 Nb6 12.Bd3 Bd7 13.0-0 Qe7 (13...Nfd5 14.Nc3=) 14.Qb3 (14.e4 Ra8 15.Bc3 Bf4+=) 14...Ra8= 15.Nc3 Nfd5 16.Nd5 Nd5 17.Bb2 Qf8 (17...c6 18.e4 Nf4 19.e5=) 18.Rc1 g6 (18...Nb4 19.Bf1=) 19.g3 (19.e4 Nf4 20.Bf1+=) 19...Qh6 (19...Nb4 20.Bf1=) 20.Be4?? (20.e4!? Nb4 21.e5 Nd3 22.Qd3+-) 20...c6 (20...Ra5!?=+) 21.Bd3 (21.Ne5 Be5 22.de5+=) 21...Ne3? (better 21...cb5!? 22.Bb5 Bb5 23.Qb5 Qf8+=) 22.fe3+- Qe3 23.Kg2 cb5 24.Re1 Qh6 25.Bb5 (25.d5!? e5 26.Be5 Qh3 27.Kg1 Bc5 28.Bd4 Ra3+-) 25...Bb5 26.Qb5 1-0. Mely (2245) - fankle (2260), ChessWorld.net, 2016.

10.c4 dc4 11.Bc4 Nd5 12.0-0 =.

10.c4 dc4 11.Bc4 Ne4 12.0-0 c5 (12...b6!?=) 13.bc6+- bc6 14.Qc2 (14.Nc3 Nc3 15.Bc3 c5+=) 14...Nef6 (14...Nb6 15.Bd3 f5 16.Nc3 Nc3 17.Bc3+=) 15.e4 Ng4 (15...Bb4!?+=) 16.h3+- Nh6 17.e5 (17.Nbd2!?+-) 17...Be7+- 18.Bd3 f5 (18...g6 19.Nc3+-) 19.ef6 Nf6 20.Ne5 (20.Nbd2+-) 20...c5 (better 20...Nf5!?+-) 21.Nc6 Qd6 22.Ne7 Qe7 23.dc5 e5 (23...Nf5 24.Nd2+-) 24.c6 (24.Nd2 Nf7 25.Nf3 Qc7+-) 24...Nf7 25.Re1 (25.Nd2 Be6+-) 25...Qd6 (25...Be6 26.Be5 Bd5 27.Bc3+-) 26.Rd1 Qc7 (26...Qe7 27.Bb2 Qc7 28.Na3+-) 27.Na3 Re8 (27...Nd8 28.Bc4 Kh8+-) 28.Nb5 Qb6 (28...Qe7 29.Bc4 Rd8 30.Rd8 Qd8 31.Bb2+-) 29.Bc4 Be6 (29...Kf8 30.Bf7 Qb5 31.Be8 Ke8+-) 30.Be6 Qb5 31.c7 Qb7 (31...Re6 32.c8Q Re8+-) 32.Rd8 Kf8 33.Qc5 (33.Qc5 Kg8 34.Re8 Ne8 35.Qe7 Qb1 36.Kh2 h6 37.c8Q Qg1 38.Kg1 Kh8 39.Qce8 Kh7 40.Q8f7 h5 41.Qg7) 1–0. GuestVLPV – GuestKBJK, freechess.org, 2020.

10.Nbd2 c5 11.c4 cd4=+ 12.ed4 (12.Bd4 e5 13.Bb2 Qe7=+) 12...b6 13.Bd3 dc4 14.Bc4 (14.Nc4 Bb4 15.Nfd2 Bb7=+) 14...Bb7 15.0-0 Qc7 16.Qb3 (16.Qe2 Rc8 17.Rc1 Bf4=+) 16...Ng4 (16...Bf4 17.Re1-/+) 17.g3 (17.h3 Ngf6=+) 17...Ngf6-/+ 18.Bb2 Rc8 19.Rc1 Qb8 20.Re1 h6 (20...Bd5 21.Ne5 Qb7 22.Bd5 Nd5 23.Ndc4=) 21.Ne5= Be5 (21...Qc7 22.Nd7 Nd7 23.Be6 fe6 24.Qe6 Kh7 25.Rc1+-) 22.de5 Nc5 23.Qe3 Nd5 24.Qe2 Nb4 (24...Rd8 25.Rd1=) 25.Bc3 Nd5 (25...Nc2 26.Rc1 Na3 27.Bd4=) 26.Bd4 Ne7 (26...Rd8 27.Rd1=) 27.g4 (27.Bc5 Rc5 28.Nb3 Rc7=) 27...Ng6 (27...Nd5 28.Rc1=) 28.Qe3 Ne4 (28...Bd5 29.Bd5 ed5 30.f4=) 29.Ne4+= Rc4 30.Nd6 Rb4 31.h3 (31.Qd2 Rb3 32.Rd1 Rh3=) 31...Nh4= 32.Rd1 (32.Nb7?? Qb7 33.Qe4 Nf3 34.Kh1 Qe4 35.Re4 Rd4-+) 32...Bd5 33.Bb6 (33.Bc3!? Rb3 34.f4=+) 33…Rb3-/+ (33...Rb3 34.Qc5 Rh3 35.Rd5 ed5-/+) 0–1. DEFFM – GuestBRPR, freechess.org, 2018.

10.Bd3 b6 A) 11.0-0 A1) 11...Qe7 12.Nbd2 (12.c4 dc4 13.Bc4 Bb7 14.Nc3 h6 15.Qc2 Bf3 16.gf3) 12...Bb7 13.c4 g6 14.cd5 Nd5 15.Nc4 Ra8 16.Bb2; A2) 11...h6 12.Nbd2 (12.Ne5 Bb7 13.Nd2 Qe7 14.c4 Ra8 15.Bb2 Ne4 16.cd5) 12...Bb7 13.c4 Qe7 14.Qc2 Ra8 15.Bc3 e5 16.de5; A3) 11...Bb7 12.Nbd2 (12.Ne5 Qe7 13.Nd2 Ra8 14.Bc3 h6 15.f4 Ra3 16.Bb2) 12...Qe7 13.c4 Ne4 14.Qc2 Ndf6 15.cd5 ed5 16.Bb2; B) 11.c4 B1) 11...dc4 12.Bc4 Bb7 13.Nc3 Qe7 14.0-0 Ra8 15.Bb2 Nd5 16.Nd5; B2) 11...Ne4 12.Nc3 (12.0-0 Bb7 13.Nc3 Qf6 14.Qc2 Qg6 15.cd5 ed5 16.Bb2) 12...Bb7 13.Qc2 f5 14.0-0 Qe7 15.Bb2 Ra8 16.h3; B3) 11...Bb7 12.0-0 (12.Nc3 dc4 13.Bc4 Ne4 14.d5 Nec5 15.0-0 Nf6 16.de6) 12...dc4 13.Bc4 Qe7 14.Bb2 Ra8 15.Nc3 Nd5 16.Nd5; C) 11.Bb2 C1) 11...Ne4 12.Nbd2 (12.0-0 Bb7 13.Nbd2 Qf6 14.c4 Ra8 15.cd5 ed5 16.Qc2) 12...Bb7 13.0-0 Qf6 14.c4 Ra8 15.cd5 ed5 16.Qc2; C2) 11...Bb7 12.0-0 (12.Nbd2 Ne4 13.0-0 Qe7 14.c4 Ra8 15.cd5 ed5 16.Qc2) 12...Ne4 13.Nbd2 Qf6 14.c4 Ra8 15.cd5 ed5 16.Qc2; D) 11.Nbd2 D1) 11...Qe7 12.0-0 (12.c4 Bb7 13.0-0 Ra8 14.Qc2 g6 15.Bb2 dc4 16.Bc4) 12...Bb7 13.c4 Ne4 14.Qc2 f5 15.cd5 ed5 16.Bb2; D2) 11...g6 12.Bc3 (12.Ne5 Bb7 13.0-0 Qe7 14.Nc6 Qe8 15.Qf3 Qa8 16.Bb2) 12...Bb7 13.Ne5 Qe7 14.0-0 Ra8 15.Qe2 Qe8 16.Rb1; D3) 11...Bb7 12.0-0 (12.Ne5 Qe7 13.0-0 Ra8 14.Bc3 Ra3 15.Bb2 Ra2 16.Qb1) 12...Qe7 13.c4 Ra8 14.Qc2 g6 15.Bb2 dc4 16.Bc4.

10.Bd3 c6 =.

10.Bd3 Ne4 A) 11.Nbd2 f5 (11...Ndf6 12.0-0 Bd7 13.Ne5 Qe8 14.Nd7 Qd7 15.f3 Nd2 16.Qd2; 11...Nd2 12.Qd2 Nb6 13.0-0 Bd7 14.Bc3 f6 15.Bb4 e5 16.e4) 12.0-0 b6 13.Bb2 Qf6 14.Qe2 e5 15.c4 Nd2 16.Nd2; B) 11.c4 Ndf6 (11...c5 12.0-0 b6 13.Nbd2 Bb7 14.Qc2 f5 15.Bb2 cd4 16.ed4; 11...Bb4 12.Nbd2 Nd2 13.Nd2 dc4 14.Bc4 Nb6 15.Bd3 Qd5 16.0-0) 12.Qc2 (12.c5 Be7 13.Ne5 Nd7 14.Nd7 Bd7 15.0-0 Bg5 16.Nc3) 12...b6 13.0-0 Bb7 14.Nc3 Nc3 15.Bc3 dc4 16.Bc4; C) 11.0-0 C1) 11...Qf6 12.c4 (12.Nbd2 Qf5 13.Bb2 Nb6 14.Ne5 Na4 15.Qa1 Nb2 16.Qb2) 12...b6 13.Nc3 Bb7 14.c5 Nc3 15.Bc3 bc5 16.dc5; C2) 11...Nb6 12.Nbd2 (12.Nc3 Bd7 13.Ne5 Qe7 14.f3 Nc3 15.Bc3 Be8 16.Qe2) 12...Bd7 13.Ne5 Nd2 14.Qd2 f6 15.Nd7 Qd7 16.Qe2; C3) 11...b6 12.c4 (12.Nbd2 Bb7 13.c4 f5 14.Qc2 Qe8 15.cd5 Nd2 16.Qd2) 12...Bb7 13.Nc3 Qe7 14.Qc2 Ndf6 15.cd5 ed5 16.Ne5.

10.Bd3 Qe7 A) 11.Nbd2 A1) 11...h6 12.0-0 (12.c4 e5 13.de5 Ne5 14.Be5 Be5 15.cd5 Nd5 16.Ne5) 12...b6 13.c4 Bb7 14.Qc2 Ra8 15.Bc3 e5 16.cd5; A2) 11...Nb6 12.0-0 (12.Ne5 Bd7 13.0-0 Ra8 14.h3 Be8 15.c4 dc4 16.Ndc4) 12...Bd7 13.Ne5 Ra8 14.Qf3 Ra2 15.Rb1 Be8 16.Qh3; A3) 11...b6 12.0-0 (12.c4 e5 13.de5 Ne5 14.Be5 Be5 15.cd5 Nd5 16.0-0) 12...Bb7 13.c4 Ne4 14.Qc2 Ndf6 15.cd5 ed5 16.Bb2; B) 11.0-0 B1) 11...b6 12.c4 (12.Nbd2 Bb7 13.c4 Ra8 14.Qc2 g6 15.h3 Kg7 16.Ne5) 12...dc4 13.Bc4 Bb7 14.Nc3 Ra8 15.Bb2 Nd5 16.Nd5; B2) 11...c5 12.bc6 (12.Nbd2 c4 13.Be2 Nb6 14.Ne5 Bd7 15.Qb1 Ra8 16.g3) 12...bc6 13.Nbd2 Bb7 14.c4 Ra8 15.Qb3 Rb8 16.c5; B3) 11...e5 12.de5 (12.Ne5 Ne5 13.de5 Be5 14.Be5 Qe5 15.Nd2 Qc3 16.Nb3) 12...Ne5 13.Ne5 Be5 14.Be5 Qe5 15.Nd2 Qd6 16.Qa1.

10.Bd3 Re8 A) 11.Nbd2 A1) 11...Qe7 12.0-0 (12.Ne5 Bb4 13.0-0 Ne5 14.de5 Nd7 15.Nb3 Nc5 16.Nc5) 12...c5 13.bc6 bc6 14.c4 c5 15.Qe2 Bb7 16.Rb1; A2) 11...b6 12.0-0 (12.Ne5 Bb7 13.0-0 Qe7 14.Nc6 Bc6 15.bc6 Nf8 16.g3) 12...Bb7 13.Ne5 Ne4 14.f3 Nd2 15.Qd2 Qe7 16.Nc6; A3) 11...e5 12.de5 (12.Ne5 Ne5 13.de5 Be5 14.Be5 Re5 15.0-0 Rh5 16.Nf3) 12...Ne5 13.Ne5 Be5 14.Be5 Re5 15.0-0 Re8 16.Qa1; B) 11.0-0 B1) 11...h6 12.Nbd2 (12.Ne5 c5 13.bc6 bc6 14.Nd2 Qc7 15.f4 c5 16.dc5) 12...e5 13.de5 Ne5 14.Ne5 Be5 15.Be5 Re5 16.Qf3; B2) 11...e5 12.de5 (12.Ne5 Ne5 13.de5 Be5 14.Be5 Re5 15.Qd2 Qd6 16.Nc3) 12...Ne5 13.Be5 Be5 14.Ne5 Re5 15.Qd2 Bg4 16.Qb4; B3) 11...g6 12.Nbd2 (12.h3 c5 13.bc6 bc6 14.Nbd2 c5 15.c4 cd4 16.ed4) 12...e5 13.de5 Ne5 14.Be5 Be5 15.Ne5 Re5 16.Qa1.

10.Be2 c5 11.bc6 bc6 12.0-0 Qa5 13.Nbd2 Ba6 14.c4 Ra8 (14...Rb8 15.Qc2=) 15.h3 (15.Qc2 Nb6 16.Ne5 dc4 17.Ndc4 Nc4 18.Nc4 Qf5=) 15...h6 (15...Qa2!? 16.Qb1 Qa4+=) 16.Qc2= Nb6 17.Rc1 (17.Ne5 dc4 18.Ndc4 Nc4 19.Nc4 Bc4 20.Bc4 Nd5=) 17...Nfd7 (17...Nc4 18.Nc4 Bc4 19.Bc4 dc4 20.Nd2=) 18.Bb2 (18.Bc3 Qa4 19.c5 Be2 20.cd6 Qa3=) 18...Qa4 19.Kf1 Bb4 20.Bc3 Ba3 (20...Be7 21.Qa4 Na4 22.Ba1=) 21.Qa4 Na4 22.Ra1 Nc3 23.Ra3 Ne2 24.Ke2 dc4 25.Kd1 c5 26.Nc4 Bb7 27.Ra8 Ba8 28.dc5 Bf3 29.gf3 Nc5 30.Kc2 f6 31.Kc3 e5 32.Nd6 Kf8 33.Kc4 Ne6 34.Ne4 Ke7 35.Kd5 h5 ½–½. Recasens Sanchez,JA (2120) – Fenollar Jorda,M, AEAC W/X COPA/Pr–04, 2008.

10.Be2 Ne4 11.0-0 c6 A) 12.Nc3 Nef6 (12...Qc7 13.Qd3 Ndf6 14.Rb1 c5 15.b6 Qe7 16.dc5 Nc5 17.Qd1 Bd7=; 12...Ng5 13.Nd2 f6 14.e4 Qc7 15.h4 Nf7 16.Re1 f5 17.e5 Bb4=; 12...Nc3 13.Bc3 cb5 14.Bb5 Nf6 15.Qd3 Bd7 16.Rb1 Qc7 17.Bd7 Qd7=) 13.Bb2 Qc7 14.Qd2 e5 15.Ne5 Ne5 16.de5 Be5 17.h3 Rd8=; B) 12.Bb2 Qb6 (12...Qf6 13.Nbd2 cb5 14.Bb5 Rd8 15.Qe2 Nd2 16.Qd2 Nb8 17.Ne5 Na6=; 12...Nb6 13.bc6 bc6 14.Nc3 Qc7 15.Bd3 Nc3 16.Bc3 Bb7 17.Qd2 Nc4=; 12...Qa5 13.c4 cb5 14.cb5 Nb6 15.Qb3 Nc4 16.Bc4 dc4 17.Qc4 Bd7=) 13.Ba3 cb5 14.Bd6 Nd6 15.Qd3 Nc4 16.Nbd2 Qc6 17.Ra1 b6=; C) 12.Nbd2 Nd2 (12...cb5 13.Bb5 Qc7 14.Bd3 f5 15.Qe2 g5 16.h3 g4 17.hg4 fg4=) 13.Qd2 cb5 14.Bb5 Nf6 15.c4 dc4 16.Bc4 b6 17.Rc1 Bb7=; D) 12.bc6 bc6 13.Nbd2 Ndf6 14.c4 Ba6 15.Qa4 Qa8 16.Rb1 Bc4 17.Qa8 Ra8=.

10.Be2 Ne4 11.0-0 f5 12.c4 (12.Nbd2 b6 (12...Nb6 13.c4 Nd2 14.Nd2 dc4 15.Nc4 Nc4 16.Bc4 Qh4 17.f4 Rf6+=; 12...Bb4 13.c4 Nd2 14.Nd2 f4 15.ef4 Rf4 16.Bd3 Kh8 17.Bh7 Qg5+=; 12...Qf6 13.c4 Nd2 14.Nd2 Qh6 15.f4 dc4 16.Nc4 Be7 17.Bf3 Rd8+=) 13.c4 Bb7 14.Qc2 Nd2 15.Nd2 dc4 16.Bc4 Bd5 17.Bd5 ed5=; 12.Bb2 c5 (12...Qf6 13.Qd3 c5 14.c4 Nb6 15.Nbd2 Qh6 16.Rc1 Nd2 17.Qd2 Nc4+=; 12...Qe8 13.Qd3 c5 14.c4 Nb6 15.Nbd2 Bd7 16.cd5 c4 17.Nc4 Bb5+=; 12...Qe7 13.Qd3 c5 14.c4 cd4 15.Qd4 dc4 16.Rd1 Kh8 17.Qc4 e5+=) 13.c4 dc4 14.Bc4 Nb6 15.Be2 c4 16.Ne5 Bd7 17.f3 Nf6=; 12.Qd3 c6 (12...c5 13.c4 Nb6 14.Nbd2 Qc7 15.Rc1 cd4 16.Bd4 Nd2 17.Qd2 Nc4=; 12...Qf6 13.Nbd2 Nb6 14.Ne5 Nd7 15.Ndf3 f4 16.Bb2 Qf5 17.Ra1 fe3+=; 12...Qe8 13.Nbd2 Qh5 14.c4 Nd2 15.Qd2 dc4 16.Bc4 Nb6 17.Be2 Nd5+=) 13.Na3 f4 14.c4 fe3 15.Qe3 Qe7 16.Bb2 c5 17.dc5 Bc5=) 12...c6 (12...dc4 13.Nbd2 Nd2 14.Nd2 Qh4 15.f4 Nf6 16.Bc4 Re8 17.Nf3 Qh6+=; 12...Qf6 13.Nbd2 Nd2 14.Nd2 Qh6 15.h3 b6 16.Bc3 Bb7 17.Bf3 Nf6=) 13.Ne5 (13.c5 Be7 14.Nc3 e5 15.Qc2 ed4 16.ed4 Qc7 17.b6 Qb8+=) 13...Qc7 (13...Qa5 14.Bb2 Ne5 15.de5 Bb4 16.f3 Nc5 17.cd5 ed5=) 14.f4 (14.f3 Nef6 15.f4 c5 16.Nd2 Be7 17.Bb2 Ne4+=) 14...Qa5 (14...cb5 15.cb5 Bb4 16.Qb3 Ne5 17.fe5 Qa5=) 15.Bb2 (15.bc6 bc6 16.Bb2 Be5 17.fe5 Ba6=) 15...Ne5 16.fe5 Be7 17.Qb3 (17.bc6 bc6=) 17...Bg5 (17...Nd2 18.Nd2 Qd2 19.Bd3 Qe3 20.Kh1 dc4 21.Qc4 cb5 22.Qb5=+) 18.Ba3 Nd2 19.Nd2 Qd2 20.Bf8? (better 20.Bd3 Qe3 21.Kh1 dc4 22.Bc4 Qb3 23.Bb3=) 20...Qe2-+ 21.Rb1 dc4 (21...Kf8?! 22.bc6 b6 23.cd5 Be3 24.Kh1=; 21...Qe3?! 22.Kf1 Qf4 23.Qf3 Qd4 24.Bd6 Qc4 25.Kg1 cb5 26.Qh5 Be3 27.Kh1-+; 21...Be3?! 22.Kh1 f4 23.Qb2 Qb2 24.Rb2 cb5 25.Bg7 bc4 26.Bh6 Bd4 27.Ra2-+) 22.Qa3 Qe3 (22...Be3?! 23.Kh1 Qd3 24.Qd3 cd3 25.Bc5-/+) 23.Qe3 Be3 24.Kf1 Kf8 25.Ke2 Bd4 26.bc6 b5 27.Rb5 Ke8 28.Kd2 (28.Kd1-+) 28...Kd8 29.g3 (29.Ra5 Kc7 30.Ra4 Be5 31.Rc4 Ba6-+) 29...Kc7 30.Rb4 c3 31.Kc2 Be5 32.Rc4 Bf6 33.Kb3 Ba6 34.Rc5 Bd3 35.Ra5 c2 (35...c2 36.Rc5 e5-+) 0–1. Mazurkiewicz,Marcin (2000) – Ben Nasser,K, 39th Olympiad Men, 2010.

10.Be2 Ne4 11.0-0 Qf6 A) 12.Bd3 Qf5 (12...Rd8 13.c4 b6 14.Qc2 Qg6 15.Bb2 Ndf6 16.Nc3 Bb7 17.c5 bc5+-; 12...c6 13.Nc3 Ng5 14.Ng5 Qg5 15.e4 c5 16.dc5 Nc5 17.ed5 ed5=; 12...Qg6 13.Nbd2 f6 14.Bb2 Nb6 15.Qa1 Bd7 16.Qa7 Qh5 17.Be4 de4=) 13.Bb2 c5 14.Nc3 Qg6 15.Qe2 f5 16.dc5 Ndc5 17.Ra1 Bd7=; B) 12.Nbd2 Qh6 (12...Qg6 13.Ne5 Ne5 14.de5 Bb4 15.Ne4 Qe4 16.Bd3 Qh4 17.Bd4 Bd7=; 12...Rd8 13.c4 Nd2 14.Nd2 Qh6 15.h3 Bb4 16.Qc2 dc4 17.Nc4 Nf6+=; 12...Qf5 13.c4 Nd2 14.Nd2 Bb4 15.Nf3 dc4 16.Bc4 Qh5 17.Qc2 Bd6+=) 13.c4 Nd2 14.Qd2 dc4 15.Bc4 Nb6 16.Bd3 Bd7 17.Bc3 Qh5=; C) 12.Qd3 Nb6 (12...Rd8 13.Nc3 Qf5 14.Bb2 Ndf6 15.Nh4 Qg5 16.Nf3 Qh6 17.Ra1 c5=; 12...Qg6 13.Nbd2 Nd2 14.Nd2 Qh6 15.f4 g5 16.Rf3 gf4 17.e4 Qh4=; 12...Qf5 13.Nbd2 Bb4 14.Nh4 Qf6 15.Ne4 Qh4 16.Nd2 Bd6 17.Nf3 Qh6=) 13.Ne5 Qh4 14.f3 Nf6 15.Bc3 Bd7 16.Be1 Qh6 17.Bg3 Ra8=; D) 12.c4 dc4 (12...Rd8 13.Qc2 b6 14.Nc3 Bb7 15.Bd3 Qg6 16.cd5 ed5 17.Bb2 Rc8=; 12...Re8 13.Qc2 Qg6 14.c5 Be7 15.c6 bc6 16.Qc6 Bd6 17.Ne5 Qh6=; 12...c6 13.Nbd2 Nd2 14.Qd2 dc4 15.bc6 bc6 16.Bc4 Bb7 17.Qc2 Qh6+=) 13.Qc2 Qg6 14.Bc4 Ng5 15.Qg6 Nf3 16.gf3 hg6 17.Nc3 Nb6=.

10.Be2 Ne4 11.0-0 Ndf6 A) 12.Ne5 Ng5 (12...h6 13.c4 dc4 14.Bc4 Nd5 15.Bd3 Ng5 16.Nc3 Nb4 17.Bc4 f6+=; 12...Be7 13.c4 Nd7 14.Nc3 Ne5 15.de5 Nc3 16.Bc3 Qd7 17.Bd3 dc4+=; 12...Ne8 13.f3 N4f6 14.Nd2 Nd7 15.f4 f6 16.Nef3 c5 17.c4 Nc7=) 13.Qd3 Bd7 14.f3 h6 15.Bb2 Qe7 16.c4 dc4 17.Qc4 Nd5=; B) 12.Nbd2 Nd2 13.Qd2 Bd7 14.Ne5 Ne4 15.Qd3 Qh4 16.f4 Rd8 17.c4 Bb4=; C) 12.Nc3 Nc3 13.Bc3 Ne4 14.Qd3 Bd7 15.Bb2 Qf6 16.Ne5 Rd8 17.c4 Qh4=; D) 12.c4 Be7 (12...Bb4 13.Qb3 Be7 14.Nc3 dc4 15.Bc4 Qd6 16.Qc2 Nc3 17.Bc3 Rd8+=; 12...dc4 13.Bc4 Nd5 14.Qb3 Nb6 15.Bd3 Nf6 16.Nbd2 Nfd5 17.Ne4 Nb4+=) 13.Ne5 Nd7 14.Nc3 Ne5 15.de5 Nc3 16.Bc3 Qd7 17.Bd3 dc4+=.

10.Be2 Ne4 11.0-0 Ng5 A) 12.Nbd2 Nb6 (12...Nf3 13.Nf3 Qf6 14.Qd3 Rd8 15.Bc3 e5 16.de5 Ne5 17.Rd1 Be6=; 12...Qf6 13.Ng5 Qg5 14.c4 Qh6 15.f4 Re8 16.Bd3 Bb4 17.Qc2 Nf6=; 12...Qe7 13.c4 Nf3 14.Nf3 dc4 15.Bc4 Rd8 16.Qc2 Qf6 17.Bd3 Nf8+=) 13.Bd3 Nf3 14.Qf3 Qh4 15.h3 Bd7 16.Re1 c6 17.bc6 Bc6=; B) 12.Bd3 c5 (12...c6 13.Nfd2 e5 14.de5 Be5 15.Bc3 Bc3 16.Nc3 Qf6 17.Ne2 Re8=; 12...Nf3 13.Qf3 Qh4 14.h3 Nf6 15.Nd2 Bd7 16.c4 Bb4 17.Nb3 Ra8=; 12...Qf6 13.Nbd2 Nf3 14.Qf3 Qh4 15.h3 Qg5 16.Bb2 c5 17.bc6 bc6=) 13.bc6 bc6 14.Nbd2 c5 15.dc5 Nc5 16.Be5 Be5 17.Ne5 f6=; C) 12.Ng5 Qg5 13.Nd2 Nb6 14.c4 dc4 15.Nc4 Nc4 16.Bc4 Rd8 17.f4 Qf6=; D) 12.Nfd2 Be7 (12...Nb6 13.c4 Nd7 14.f4 Ne4 15.Ne4 de4 16.Nc3 f5 17.c5 Be7+-; 12...Nf6 13.c4 dc4 14.Qc2 h6 15.Nc4 Be7 16.Nbd2 Nd5 17.f4 Nb4+=; 12...Qf6 13.f4 Ne4 14.Ne4 de4 15.Nc3 Qf5 16.Bg4 Qg6 17.Bh5 Qf5+-) 13.c4 f6 14.c5 f5 15.Nc3 Ne4 16.Nce4 fe4 17.f3 ef3+=.

11.c4 dc4 12.Bc4=+ Nb6 13.dc5 Bc5 14.Qb3 (14.Qd8 Rd8 15.Be2 Nbd5=) 14...Bd7 (14...Nc4!? 15.Qc4 Qd5 16.Qd5 Nd5-/+ (worse 16...ed5 17.Bf6 gf6 18.Nc3=)) 15.0-0 Qe8 (15...Nc4 16.Qc4 Be7 17.Ne5=+) 16.Bf6 gf6 17.Nc3 Nc4 18.Qc4 b6 (18...Be7 19.Rc1=) 19.Rd1 Qc8 20.Na4 Qc7 21.Nc5 bc5 22.b6 Qc6 (22...Qb6 23.Qg4 Double attack (23.Rd7 Deflection)) 23.Qg4 Kh8 24.Qh4 (24.Qh4 e5 25.h3+=) 1–0. DEFFM – GuestWXFB, freechess.org, 2018.

11.bc6 bc6 12.0-0 Bb7 13.Nbd2 Qc7 14.c4 c5 15.Qc2 cd4 16.ed4.

11.bc6 bc6 12.0-0 c5 13.c4 cd4 14.cd5 e5 15.Qc2 (15.Nbd2!? de3 16.fe3=) 15...de3-/+ 16.fe3 Ng4 17.Bh7 Kh8 18.Re1 Bc5 19.Kh1 (19.Bd3 Ne3 20.Qc1 Nc2 21.Kh1 Ne1 22.Qe1 Re8-/+) 19...Ne3-+ 20.Qd3 (20.Re3 Be3 21.Be4 Qa5-+) 20...Ng4 21.Re2? (21.Rf1 Qb6 22.Qc4-+) 21...Qb6 22.Nfd2 (22.Qc2 Qa6 23.Bb2 f5-+) 22...g6 23.Qh3 (23.Na3 Kh7 24.Qh3 Nh6-+) 23...Ndf6 24.Bg6 (24.Be5 Ne5 25.Qh4 Kg7 26.Re5 Rh8-+) 24...Kg7 25.Be5 (25.Bf5 Bf5 26.Be5 Rh8-+ (26...Bb1 27.Qg4 Bg6 28.Qf4+-)) 25...fg6 26.Qb3 (26.Qc3 Ba6 27.Bf6 Rf6-+) 26...Qa6 27.Bf6 (27.Qc4 Ne5 28.Qa6 Ba6 29.Re5 Ng4-+) 27...Rf6 28.Qd1 Rf2 29.Nc3 Re2 30.Qe2 Nf2 31.Kg1 Ne4 32.Kh1 Qa1 33.Ndb1 Nc3 34.Qe5 Kf7 35.Qc7 Be7 36.Qf4 Bf5 (36...Bf5 37.Qf1 Ne4-+) 0–1. DEFFM – GuestRZVY, freechess.org, 2019.

11.bc6 bc6 12.c4 Ba6 (12...dc4 13.Bc4 Nb6 14.Bd3= (14.Be2 Nbd5 15.0-0 Qc7 16.g3) 14...Nbd5 15.Nbd2 Qa5 16.0-0) 13.c5 (13.Nbd2 Nb6 14.Qc2 Nc4 15.Nc4 dc4 16.Bc4) 13...Be7 14.0-0 Qa5 15.Bc3 Qa2 16.Ba6 Qa6 17.Qc2 Ne4 18.Nbd2 Nc3 ½–½. Baeckstroem,Mikael (2225) – Daatselaar,Jan Bart van (2175), corr ICCF WSTT/3/06/Final, 2009.

11.bc6 bc6 12.Nbd2 c5 13.c4 (13.dc5 Nc5 14.0-0 Qe7=) 13...cd4 14.ed4 Ba6 15.0-0 Qc7 16.Qb3 dc4 17.Nc4 Rb8 18.Qa2 Bc4 19.Bc4 Nb6 20.Be6 (20.Bd3!?-/+) 20...fe6-+ 21.Qe6 Kh8 (21...Kf8 22.Ne5-+) 22.Ne5-/+ Rf8 23.Bb2 Qe7 24.Qb3 (24.Qe7 Be7 25.Re1 Nfd5-/+) 24...Nbd5 25.Re1 Qc7 26.Rc1 Qe7 27.Re1 ½-½. onur604 (2320) - Ladajs (2245), Casual Rapid game, lichess.org, 2021.

11.bc6 bc6 12.Nbd2 c5 13.c4 cd4 14.ed4 dc4 15.Bc4 Bb7 16.0-0.

10.c4 0-0-/+ 11.cd5 ed5 12.Nc3 Qa5 13.Nd2 (13.Qa4 Qa4 14.Na4 c4-/+) 13...Re8 14.Be2 cd4 15.ed4 (15.Nb3 Qa3 16.ed4 Nb6-/+) 15...Bb4 16.Qc1 Bc3 17.Qc3?? (better is 17.Bc3 Qb5 18.Qd1-+) 17...Qb5 18.Qf3 b6 (18...b6 19.Bc3 Ba6-+) 0–1. Frydendal,Odd (1910) – Pooley,Dr. Mark C (1970), corr WS/H/204 ICCF, 2009.

10.dc5 Nc5 11.Nbd2 0-0 12.c4 e5 13.Ne5 Nce4 14.Ne4 de4 15.Be2 Qe7 16.Ng4 Bb4 17.Kf1 Ng4 18.Bg4 Rd8 19.Bd4 Be6 20.g3 Bc4 21.Be2 Be6 22.Kg2 Bc3 23.Qa4 Bd4 24.ed4 h6 25.Rd1 Bd5 26.Kg1 Rc8 27.b6 Qe6 28.Qa3 Qb6 29.Bg4 Rc4 30.Qe3 Rb4 31.Kf1 Rb2 32.Be2 Qb4 33.Kg2 Qa4 34.Rc1 Qa2 35.Kf1 b5 36.Ke1 b4 37.Bd1 b3 38.Rc5 Be6 39.d5 Bd7 40.Rc1 Qa5 41.Qc3 e3 42.fe3 Qa2 (42...Qa2 43.Bb3 Rb3-+ (43...Qb3?! 44.Qb3 Rb3 45.Kf2-+)) 0–1. Nemec,Zdenek (2045) – Rosso,Pierandrea (2155), IECG, 2005.

10.dc5 Nc5 11.Be2 0-0 12.c4 b6 (12...Nce4 13.0-0 (13.Nbd2 Qa5 14.0-0 Nc3 15.Bc3 Qc3 16.cd5 ed5 17.Qb1 Bg4 18.Rc1=) 13...b6 14.cd5 Nd5 15.Qd4 Qf6 16.Ne5 Be5 17.Qe5 Qe5 18.Be5=) 13.cd5 (13.Bf6 Qf6 14.cd5 Rd8 15.Qd4 e5 16.Qc4 Qg6 17.0-0 e4 18.Ne1+=; 13.0-0 Bb7 14.Be5 Be5 15.Ne5 Qc7 16.Qd4 Rd8 17.Rd1 Nfe4 18.Nf3+=; 13.Bd4 Bb7 14.0-0 Qe7 15.Ne5 Rd8 16.Nd2 Be5 17.Be5 dc4 18.Qc2+=) 13...Nd5 14.Qd4 (14.0-0 Bb7 15.Qd4 f6 16.Qh4 f5 17.Qh3 Qd7 18.Bd4=) 14...f6 15.Nbd2 (15.Qh4 Bb7 16.0-0 f5 17.Qh3 Qd7 18.Bd4=) 15...Bb7 (15...Qd7 16.0-0 Rd8 17.Rd1 Bb7 18.Qh4=) 16.0-0 Qd7 17.Qg4 (17.Rd1 Rd8 18.Qh4=) 17...Ra8 18.Rd1 (18.Nc4=) 18...Ra4 19.Nc4 Qb5 20.Nd4 Qd7 (20...Rc4?! 21.Nb5 Rg4 22.Bg4+=) 21.Nd6 Qd6 22.Bb5 Ra2 23.Bf1 Ba6 24.Nb5 Qc6 25.e4 Bb5 26.ed5 ed5 27.Bb5 ½–½. Baumann,Walter (1965) – Haller,Philipp (2040), corr WS/H/217 ICCF, 2010.

10.dc5 Nc5 11.Be2 Nce4 =.

11.c4 Ba6 =.

11.c4 Bb4 12.Bc3 Qa5 13.Qb3 Bc3 14.Qc3 Qc3 15.Nc3 Ba6 16.c5 Bf1 17.Rf1 ½–½. Poschmann,Hans – Livesey,Nigel, Foster City, 1996.

11.Nbd2 0-0 12.c4=+ Ba6 13.Qa4 (13.Ne5 c5=+) 13...Qa8=+ 14.Qd1 (14.Bc3 Nb6 15.Qc2 Bc4 16.Bc4 Nc4 17.Nc4 dc4=) 14...Bb4-/+ 15.cd5 (15.Qc1 Ne4-/+) 15...cd5 16.Bb2 Ne4 17.Qa1 Bf1 18.Qa8 Ra8 19.Rf1 Ra2 20.Bc1 Nb6 (better is 20...Nc3 21.Rg1 Ra1-+) 21.Kd1 (21.Ke2 Nc4 22.Rd1-+) 21...Nc3 22.Ke1 Rc2 (23.Bb2 Rb2-+) 0–1. Van Der Lijn,Dirk – Crabbendam,H, Amsterdam, 1964.

11.Nbd2 c5 12.dc5 Nc5 13.c4 =+.

11.Be2 0-0 12.0-0 c5 13.dc5 (13.Nc3 A) 13...Bb7 14.Nb5 Be7 (14...Bb8 15.c4 dc4 16.Bc4 Nb6 17.Be2 c4 18.Qb1 Be4) 15.c4 Qb8 16.cd5 Bd5 17.Nc3 Bb7 18.Qc2 cd4; B) 13...c4 14.Qb1 (14.Nb5 Be7 15.Qb1 Ba6 16.Ne5 Ne5 17.de5 Ne4 18.Rd1 Qa5) 14...Ba6 15.Qa2 Qa8 16.Rb1 Bb7 17.Qa8 Ra8 18.Rb7 Ra1) 13...Nc5 14.c4 dc4 (14...Bb7 15.Nc3 Qe7 16.cd5 Nd5 17.Nb5 f6 18.Qc2 Rc8) 15.Bc4 (15.Na3 Bb7 16.Nc4 Be7 17.Bb2 Qd1 18.Rd1 Ra8) 15...Qe7 (15...Bb7 16.Bf6 gf6 17.Nc3 Bc7 18.Nb5 Qd1) 16.Qc2 (16.Bf6 gf6 17.Nc3 Bb7 18.Nb5 Bb8) 16...Bb7 17.Nbd2 h6 (17...Bc6 18.Bd4 Ra8) 18.Be5 (18.Rb1 Nfe4) 18...Be5 (18...Rd8+=) 19.Ne5 Nfe4 20.Ndf3 Nd6 21.Be2 Nce4 22.Rd1 Rc8 23.Qb2 Nc3 24.Re1 Ne2 25.Qe2 Rc3 26.Rd1 Be4 27.Nd3 Qc7 28.Nfe1 Bb7 29.Qb2 f6 30.Rc1 Rc1 31.Qc1 Qc1 32.Nc1 Ne4 33.f3 Nc3 34.e4 Kf7 35.h4 Ke7 36.Kf2 Kd6 37.Ke3 Ba6 38.Ncd3 e5 39.g3 Nb5 40.Nc2 Nc7 41.Ncb4 Bd3 42.Nd3 Ne6 43.f4 g6 44.Kf3 Nd4 45.Ke3 ½–½. Berlacki,Piotr (1840) – Oupindrin,Narayanin (2145), Syre Memorial op, 1996.

11.Be2 Qa5 12.Nbd2 Ba6 13.c4 Bc4 14.Bc4 dc4 15.0-0 Nb6 16.Qc2 0-0 17.Nc4 Nc4 18.Qc4 Qd5 19.Qc2 Ra8 20.Bb2 ½–½. Skerlik,Mgr.Stanislav (2330) – Galanov,Sergey Igorevich (2375), Slav Cup III, 2008.

10.0-0 c6 11.c4= cb5 12.cb5 e5 13.Qc2 =+.

10.0-0 c6 11.c4= Nb6 12.Qc2 (12.d3 cb5 13.cb5 Qe7=) 12...dc4 13.bc6 bc6 14.Ng5 e5 15.f4 Qe7?? (better is 15...Re8=) 16.fe5+- Be5 17.Rf6! g6 (17...Bf6 18.Qh7) 18.Be5 Qe5 19.Rc6 Bf5 (19...Qb5 20.Rd6+- (20.Bc4?! Nc4 21.Rc4 Ba6 22.Nh7 Qc4 23.Qc4 Bc4 24.Nf8 Kf8+-)) 20.e4 Bd7 (20...Rb8 21.Nc3 (21.Bc4?! Nc4 22.Rc4 Bd7+-) 21...Bg4 22.Bg4 Qg5 23.Be2+-) 21.Nf3 (21.Rb6?! Qd4 22.Kh1 Qb6 23.Bc4 Qf2+-) 21...Qb5 (21...Qb8 22.Rc5 Qa7 23.Kf1+- (23.Bc4?! Na4+/–)) 22.Rc7 Ra8 23.Bc4 Nc4 24.Rc4 Ra1 25.Rc8 Be8 26.Kf2 Kf8 27.Nc3 Rf1 28.Kg3 Qd7 29.Nd5 Qd6 30.Nf4 g5 31.Re8?? Ke8+= 32.Qc8 Ke7 33.Qb7 Kf8= 34.Qc8 Kg7 35.Qc3 f6 36.e5 gf4=+ 37.Kf4 fe5 38.Qe5 Qe5 39.Ke5 Rf2 40.d4 Rg2 41.d5 Rf2 (42.Ke4 Kf6=+). De Visser,Arno – Duinmaijer, 1995.

10.0-0 e5 11.c4 dc4 12.Bc4 e4 13.Nd4 Bh2 14.Kh2 Ne5 15.Be2 Nfg4 16.Bg4 Ng4 17.Kg3 h5 18.Rh1 h4! 19.Rh4 Qd6 20.f4 ef3! 21.Kf3 Qf6 22.Kg3 (22.Ke2 Qh4 23.Qf1-+) 22...Qf2 23.Kh3 Ne3 (23...Ne3 24.Rg4 Qg2 25.Kh4 Qh2 26.Kg5 Qh6) 0–1. DEFFM – GuestNWCF, freechess.org, 2018.

10.0-0 e5 11.c4 e4 12.Nd4 dc4 13.Bc4 Ne5 14.Qb3 (14.Be2 Qd7=+) 14...Qe7 15.Nc3 Nc4 16.Qc4 Qe5 17.f4 ef3 18.Nf3 (18.Nf3 Qh5 Combination; 18.Rf3 Qh2 Combination; 18.gf3 Qh2) 18...Qh5 19.Ne4 (19.Ne2!? Be6 20.Qd3=+) 19...Ne4-/+ 20.Qe4 Qb5 21.Ng5?? (better 21.Be5-/+) 21…Qg5-+ 0–1. GuestMXLJ – GuestHYMS, freechess.org, 2017.

10.0-0 e5 11.d3 =+.

10.0-0 e5 11.d4 e4 12.Nfd2 Nb6 13.c4 dc4 14.h3 Bf5 15.Nc4 Nc4 16.Bc4 Ng4 (16...Qe7 17.Nc3=) 17.Be2 (17.hg4 Qh4 18.f4 ef3 19.Rf3 Bg4=) 17...Nh2=+ 18.Re1 Qg5 19.Kh1 Qh4 20.f4 (20.Kg1 Bh3! 21.Nc3-+) 20...ef3! 21.Bf3 (21.Bf3 Nf3 Combination; 21.gf3 Qh3 Mate attack) 21…Nf3 (21...Nf3 22.Re2 Bh3 23.gf3 Bg2 24.Kg2 Qh2 25.Kf1 Qh1 26.Kf2 Qd1-+) 0-1. Mely (2585) - kumpan (2695), ChessWorld.net, 2012.

10.0-0 Re8 11.d4= Nb6 12.Nbd2 =.

10.0-0 Re8 11.d4= e5 12.c4 ed4 13.Bd4 dc4 14.Nbd2 Ne5 (14...c3 15.Bc3 Nd5 16.Bd4=) 15.Be5 Be5 16.Nc4 (16.Ne5 Re5 17.Bc4 Bg4=) 16...Qd1 17.Rd1 Bc3 (18.Nd4 Bd7=). Monin – Faibisovich, Leningrad, 1985.

10.0-0 Re8 11.d4= e5 12.c4 e4 13.Nfd2 =.

10.0-0 Re8 11.d4= e5 12.de5 Ne5 13.Be5 Be5 14.Ne5 Re5 =.

10.0-0 h6 11.d4= e5?? (better 11...Nb6=) 12.de5+- (12.Ne5?! Qe7+/-) 12...Ne5 13.Ne5 Bf5 14.Nd2 Qe7 15.Ndf3 Rd8 16.Bd4 Ne4 17.Bd3 (17.b6 c5 18.Bb2 Qe6+-) 17...Bh7 18.h3 f6 19.Ng4 h5 20.Ngh2 c5 21.Bb2 (21.bc6 bc6 22.c4 c5+-) 21...c4 (21...Qe6 22.Qe2+-) 22.Be4 (22.Be2!? c3 23.Ba1 Qf7+-) 22...de4 23.Nd4 c3 24.Bc3 Qc7 25.Qd2?? (better 25.Bd2 Bh2 26.Kh1+-) 25...Bh2+= 26.Kh1 Be5 27.Rd1 Qc4 28.Qe1 Bg6 29.g3 (29.b6!?+=) 29...Bf7 30.Kg2 (30.Kh2 Rc8 31.Bb4 Bd4 32.Rd4 Qb5 33.Re4 Rc2=+) 30...Rc8=+ 31.Ba1 (31.Bd2 Bd4 32.ed4 Qb5=+) 31...Bd4 32.ed4 Qc2 (32...Qc2 33.Rd2 Qb3-/+) 0-1. Akrapovik (1665) - anesu_t-07 (1615), lichess.org, 2020.

10.0-0 e4 11.Nd4 Nb6 12.f4 ef3 13.Nf3 0-0 14.Qe1 Ne4 15.Bd4 c5 16.bc6 bc6 17.d3 c5 18.Bg7 Kg7 19.de4 de4 20.Nfd2 Qg5 21.Bb5 f5 22.Na3 Nd5 Attacks the isolani on e3 23.Nac4 Bb8 24.g3 Rf6 25.Rf2 h5 26.Kh1 Kh7 27.Nb3? (better 27.Rg2!?=+) 27...h4-/+ 28.gh4 (28.g4 fg4 29.Nc5-+) 28...Qh4-+ 29.Qg1 (29.Nc5 Bg3 30.Kg1 Bf2 31.Qf2 Rg6 32.Kf1 Qh3 33.Ke1 Rg2 34.Ne4 A) 34...Rf2?! 35.Ng5 Kg6 36.Nh3 Rc2 37.Nf2-+; B) worse 34...fe4 35.Qf7 Kh8 36.Qf8 (36.Qd5?? Qh4 37.Kd1 Rg1 38.Ke2 Qh2) 36...Rg8 37.Qf2-+; C) 34...Qg4-+) 29...Rg6 (29...Qh6 30.Nc5 Ne3 31.Re2 Nc4 32.Bc4-+) 30.Rg2-/+ Rg2 31.Qg2 Nf6 32.Ncd2 (32.Nc5?? Qe1 33.Qg1 Qb4-+) 32...Ng4 33.Nf1 f4 (33...Bd6 34.Be2-/+) 34.ef4 Nf2 35.Kg1 Nh3 36.Kh1 Qf4 (36...Bf4?! 37.Qe4 Kg7 38.Qg2 Kh8 39.Nc5 Nf2 40.Kg1 Nh3 41.Kh1 Nf2 42.Kg1 Nh3 43.Kh1=) 37.Ng3 The isolani on e4 becomes a target (37.Nc5 Qf5 38.Bc4 Kh6-/+ (38...Qc5?! 39.Qg8 Kh6 40.Qh8 Kg5 41.Qg7 Kf5 42.Qf7 Ke5 43.Qg7 Kf5 44.Qf7 Kg5 45.Qg7 Kh4 46.Qf6 Kh5 47.Qf7 Kh6 48.Qf6 Kh7 49.Qf7 Kh6 50.Qf6 Kh5 51.Qf7 Kg5 52.Qg7=)) 37...Nf2 (37...c4 38.Bc4 Bg4=+) 38.Kg1=+ Nh3 39.Kh1. GuestNBLH – GuestPFNQ, freechess.org, 2019.

10.0-0 e4 11.Nd4 Nc5 12.f4 ef3 13.Bf3 0-0 14.Nc3 Re8 15.Nd5 Nd5 16.Bd5 Bh2 17.Kh2 Qd5 18.Qf3 Qd6 19.Kg1 f6 20.d3 Bd7 21.e4 Ra8 22.Nf5 Bf5 23.Qf5 Nd7 24.Bc3 Ne5 25.d4 Nc4 26.e5 Ne5 27.de5 Qc5 28.Kh2 Qc3 29.Qe6 Kh8 30.ef6 gf6 (30...Qc2?? 31.fg7 Kg7 32.Rf7 Kg8 33.Rc7 Kh8 34.Qe5 Kg8 35.Qg7) 31.Rf6 Rg8 (31...Qc2?? 32.Qe5 Kg8 33.Rf3+-) 32.Rf3 Qc5 (32...Qc2?? 33.Qe5 Rg7 34.Rf8) 33.Qf6 Rg7 34.Qd8 Rg8 35.Qf6 Rg7 36.Rf5 Qe3 (36...Qc2?? 37.Qd8 Rg8 38.Qd4 Rg7 39.Rf8) 37.Qd8 Rg8 38.Qc7 Qh6 39.Kg1 Qe3 40.Kh1 Qc1 41.Kh2 Qh6 42.Kg1 Qe3 43.Kh2 Qh6 44.Kg1 Qe3 45.Kh2 Qh6 46.Kg1 Qe3 47.Kh2 Qh6 48.Kg1 Qe3 49.Kh2 1-0. DEFFM – GuestKZYF, freechess.org, 2021.

10.d3 0-0 11.Nbd2 Qe7 12.0-0 Rd8 13.Bb2 Nb6 (13...h6 14.Qa1+=) 14.c4 dc4 15.Nc4 Nc4 16.dc4 e4 17.Nd4 h5 18.Qc2 (18.Bh5? Qe5 19.Bf7 Kf7-+) 18...Ng4 19.h3 Qh4 20.c5 Bh2 21.Kh1 Be5 22.Kg1 Bh2 23.Kh1 Be5 24.Kg1 Bh2 25.Kh1 ½–½. Boehnke,Hartmut (2085) – Dumitrescu,Florian (2080), corr WS/H/170 ICCF, 2009.

11.Bb2 Qe7 12.Nc3 Nb6 13.d3 Rd8 14.Qd2 Bb4 15.Qc1 Bd7 16.d4 e4 17.Ne5 Be6 18.f3 ef3 19.Bf3 Ra8 20.Qd1 Nfd7 21.Nd3 f5 22.Qe2 Nf6 23.Qe1 Bd7 24.Qf2 Bc3 25.Bc3 Bb5 26.Rb1 c6 27.Bb4 Qe6 28.Ne5 (28.Nc5!? Qf7 29.Bd1-/+) 28...Nc4-+ 29.Bc3 Qe7 30.Qg3 Ra2 31.Bb4 Qe8 32.Nc4 Bc4 33.Qe5 Qe5 (worse is 33...Rc2 34.Be7 Ne4 35.Qe6 Kh8 36.Qf5-/+) 34.de5 Ne8 35.g4 g6 36.gf5 gf5 37.e6 d4 ½–½. Trokenheim,Marek (1765) – Ortiz,Manuel (2040), OP–2012–0-02058, 2012.

11.d3 Qe7 12.Nbd2 Rd8 13.Ng5 Nb6 14.Bb2 Bd7 15.d4 (15.c4 dc4 16.Nc4 Bb5 17.Nb6 cb6=+) 15...e4-/+ 16.Qa1? (better is 16.c4!? dc4 17.Qc2-/+) 16...Ng4 -+.

11.d4 e4 12.Nfd2 Re8 (12...c6 13.c4=+) 13.c4= dc4 (13...c5 14.dc5 Nc5 15.Bd4=) 14.Nc4 Nb6 (14...Bb4 15.Bc3 Bf8 16.f3=) 15.Nb6 cb6 16.Nc3 Qc7 (16...Bf5 17.Qd2=) 17.h3 Be6 18.Qb1 Bf5 19.Rd1 Ra8 (19...Qd7 20.Bc4=) 20.Bb2 +=.

11.d4 e4 12.Ne5 Qe7 13.Nd7 Bd7 14.Nc3 (14.c4 dc4 15.Nc3 Be6=+) 14...Ra8-/+ 15.Bb2 Bf5 16.Qd2 c6 17.bc6 bc6 18.Rb1 Bc7 19.h3? (better is 19.f4!?-/+) 19...Qd6 -+.

9.Nf3 Bd6 10.Bd3 Qa5 11.Bc3 Qc7 12.0-0 0-0 13.Qe1 b6 14.Bb2 Bb7 15.Qg3 Ra8 16.Ne5 g6 17.Nd7 Nd7 18.Nc3 Bf8 19.Ra1 Ra1 20.Ba1 Bg7 21.Bb2 c4 22.Bf1 Qd6 23.Qh4 Bf6 24.Ne4 de4 (worse is 24...Bh4 25.Nd6 Ba8 26.Bd4+=) 25.Bf6 Nf6 26.Qf6 Qd2 27.Qd4 Qd4 28.ed4 c3 0–1. Rooijen Van,Peter (1655) – Svajdler,Frantisek (2175), 8. LSS No Engine Cup Final, 2010.

9.Nf3 Bd6 10.Be2 Qc7 11.0-0 0-0 12.d3 e5 13.fe5 Ne5 14.Nbd2? (better is 14.b6 Qb8 15.Be5 Be5 16.Qd2+=) 14...Neg4-+ 15.Bf6 Nf6 (15...Ne3 16.Qa1 Nf1 17.Kf1 gf6 18.Qf6-+) 16.h3 Re8 17.e4 Bf4 18.c4? (18.Re1 Be3 (18...de4 19.de4 Be3 20.Kh1-+) 19.Kh1 Nh5-+) 18...de4 (better is 18...Be3!? 19.Kh1 Nh5 20.g4 Ng3 21.Kg2 de4 22.de4 Nf1 23.Nf1-+) 19.Ne4 Ne4 (19...Be3!? 20.Kh1 Re4 21.de4 Ne4 22.g4-+) 20.de4-/+ Re4 21.Bd3 Re3 22.Qc2 g6 23.Be4 Qe7 24.Bd5 Bf5 25.Qa2 Be4 26.Qa8 Kg7 27.Qa1 f6 28.Rd1 (better is 28.Kh1-/+) 28...Bf3-+ 29.Bf3 Rf3! 30.gf3 (30.gf3 Qe2 Double attack (30...Qe2 Decoy)) 30...Qe3 31.Kg2 (31.Kf1 Qf3 32.Kg1 Be3 33.Kh2-+) 31...Qe2 32.Kg1 Be3 (32...Kh6!? 33.Rb1 Be3 34.Kh1 Qf3 35.Kh2 Qe2 36.Kh1-+) 33.Kh1 Qf3 34.Kh2 Bf4 (34...Kh6 35.Rd8 Bf2 36.Qc1 g5 37.Qf1 Bg3 38.Kg1 Bh2 39.Kh2 Qf1 40.Rf8-+) 35.Kg1 Qg3 (worse is 35...Qh3 36.Kf2 Be5 37.Qa4 Bd4 38.Rd4 cd4 39.Qa8 Qe3 40.Kf1 Qf3 41.Ke1-+) 36.Kf1 Qh3 37.Kf2 Qe3 38.Kg2 (38.Kf1 Qf3 39.Ke1-+) 38...Qe2 39.Kg1 Bh2 (39...Be3 40.Kh1 Qh5 41.Kg2 Qg4 42.Kh2 Bf4 43.Kh1 Qh3 44.Kg1 Be3) 40.Kh1-+ Be5 (40...Qc4?! 41.Rd7 Kh6 42.Qf6+=) 41.Rd7 Kh6 42.Qc1 g5 43.Rd2 Qf3 (43...Qe4 44.Kg1 Bf4 45.Rh2 Kg6 46.Qd1 Qd4 47.Qd4 Bh2 48.Kh2 cd4 49.c5-+) 44.Kg1 Bf4 45.Rh2 Kg7 46.Rh7 Kh7 47.Qb1 (47.Qc2 Kh6 48.Qg2 Qd1 49.Kf2-+) 47...Kg7 48.b6 g4 (48...Be3 49.Kh2 Qf4 50.Kh1 Qh4 51.Kg2 g4 52.Qh7 Kh7 53.Kf1 Qf2) 49.Qg6= ½–½. Jaramillo,Carlos Orlando (1915) – Rodriguez,Jorge Ivan (1820), Manizales COL, 2014.

8.c4 Nbd7 9.Nf3 0-0 10.Nc3 c5 11.cd5 (11.bc6 bc6 12.Be2 Ba6=) 11...ed5 12.Be2 Nb6 (12...Re8 13.0-0=) 13.d3 (13.Qc2 Be6=) 13...Re8 (13...Bg4 14.0-0=+) 14.0-0= Be6 (14...Bf5 15.Qc2=) 15.h3 (15.Na4 Na4 16.Qa4 Qb6=) 15...Bd6 (15...Qd7 16.Re1=+) 16.Qc2 Bf5 (16...Qe7 17.Bb2=) 17.h4 (17.Bb2 h6=) 17...h6 (17...Qd7 18.Bb2=+) 18.Rd1 (18.Bb2 Nbd7=+) 18...Qc7 19.e4 (19.Bb2 Qe7=+) 19...de4 (19...Bg6 20.Bb2=+) 20.de4=+ Ne4?? (20...Be4 21.Ne4 Ne4=+) 21.Ne4?? (better 21.Bd3 Nf2 22.Kf2 (worse 22.Bf5 Nd1 23.Nd1 c4=+; 22.Qf2?! Bd3 23.Rd3 Bg3+-) 22...Bd3 23.Qd3+-) 21...Be4-/+ (21...Re4 22.Bd3 Qe7 23.Be4 Be4 24.Qc3+-) 22.Qc3 f6 23.Qd2 (23.Re1 Bd5-/+) 23...Rd8 (23...Bd5 24.Bc3 Bf4 25.Qc2-/+) 24.Qa2 Bd5 25.Rd5 Nd5 (better 25...Ra8!? 26.Qb3 c4 27.Bc4 Qc4 28.Qc4 Nc4=) 26.Qd5+- Kf8 (26...Kh8 27.Qf5 Qd7 28.Qd7 Rd7 29.Bc3+-) 27.Qf5 (better 27.Qe4 Ra8 28.Bb2+-) 27...Re8 (27...Qf7 28.Qc2 Ra8 29.Bb2+-) 28.Kf1 (better 28.Bc4!? Ke7 29.h5+-) 28...Qe7 (28...Qf7 29.Qc2 Qe6 30.Bb2+-) 29.Bc4 (29.Bd3 Qf7+-) 29...Be5?? (better 29...Qe4 30.Qe4 Re4=) 30.Qh7 (30.Qh7 Qd6 31.Be5 fe5 32.Qg8 Ke7 33.Qg7 Kd8 34.Qb7+-) 1–0. DEFFM – GuestTTZZ, freechess.org, 2016.

8.Nf3 b6 9.Be2 0-0 10.0-0 c5 (10...Nbd7 11.Nc3=) 11.bc6 Nc6 12.Nc3 Bb7 13.Qb1 h6 (13...Qc7 14.Nb5 Qd8 15.c4+=) 14.Na4 The isolani on b6 becomes a target 14...Na5 (better 14...Bb4!?=) 15.Nb6+- Nc4 (15...Bc5!? 16.Bd4 Bd4 17.ed4 Qc7+-) 16.Nc4+- Ba6 17.Qa2 Bc4 18.Bc4 dc4 19.Qc4 Qb8 20.Be5 Qb7 21.Ra1 Rc8 22.Qa4 Nd5 (22...Nd7 23.Bc3+-) 23.c3 Nb6 (23...f6 24.Bg3 Qb2 25.e4+-) 24.Qb5 Rc5 (24...Ra8 25.Ra8 Qa8 26.h3 Qa1 27.Kh2+-) 25.Qe8 Kh7 (25...Bf8 26.Bd4 Rc7+-) 26.Qf7 Qd7 (26...Re5 27.Ne5 Qe4 28.Qe6 Bf6+-) 27.Qg7 1–0. Janek – Vindo, internet, 2018.

8.Nf3 Ne4 9.d4 (better 9.Bg7 Rg8 10.Bb2+=) 9...c6 10.c4? (10.Nbd2 Qa5=+) 10...dc4 (better 10...Bb4 11.Nfd2 Qh4-/+) 11.Bc4=+ Qa5 12.Nbd2 cb5 13.Be2 Nf6 (better 13...Bb4!? 14.Bb2 0-0-/+) 14.0-0 Bd7 15.Qc2 Qd8 16.Bc3 Nc6 17.Rc1 b4 18.Bb2 0-0 19.Qb1 Nd5 20.Nc4 g6 21.Nce5 Ne5 22.de5 Bc6 23.Bc4 Nc3 24.Bc3 bc3 25.Rc3 Bf3 26.gf3 Qa5 27.Qc2?? (better 27.Rd3!?=) 27...Qe5 (better 27...Rc8-+) 28.f4-/+ Qh5 29.Bd3 Bb4 30.Be2 Bc3?? (better 30...Qa5 31.Rc7 Qa1 32.Kg2 b6=) 31.Bh5+- Bf6 32.Qe2 (32.Bf3 b5 33.Qc5 Rb8+-) 32...Kg7?? (32...gh5 33.Qh5 Re8 34.Kg2+-) 33.Bg6 (better 33.Bf3+-) 33...hg6 34.h4 Rh8 35.h5 Rh5 (worse 35...gh5 36.Qb5+/-) 36.Kf1 Rc5 37.Ke1 Rc1 38.Kd2 Rc6 39.Ke1 Bc3 40.Kf1 Bf6 41.Kg2 Rc1 42.Qf3 Rc6 43.f5 e5 (better 43...ef5 44.e4 fe4 45.Qe4 Rb6=+) 44.fg6+/- Kh6? (44...fg6!? 45.Qd5 Rb6+/-) 45.Qg3 (better 45.gf7!? Kg7+-) 45...Kg7 46.Qf3 (better 46.gf7!? Kf7 47.Qg4+-) 46...fg6 (46...Kh6 47.gf7 Kg7+-) 47.e4 Re6 48.Qg3 Bg5?? (48...Rd6 49.Qc3 Rc6 50.Qd3+/-) 49.Qh2 (better 49.Qg5 Kf7 50.Qd8+-) 49...Bf4+= 50.f3?? (50.Qh3 Rb6+=) 50...Rf6 (50...Bh2 51.Kh2 b5 52.Kg3 b4 53.f4 ef4 54.Kf4 b3 55.Ke3 b2 56.Kd4 b1Q 57.e5 Qc2 58.Kd5 Qd3 59.Kc5 Re5 60.Kc6 Qc4 61.Kb7 Rb5 62.Ka7 Qa4) 51.Qh3 Bh2?? (better 51...Rd6+=) 52.Qh2+- Rf4 53.Qh1 Rf6 54.Qg1 g5 (54...Re6 55.Qc5+-) 55.Kf2 g4 (55...Kg6 56.Qg4+-) 56.Qg2 (better 56.Qg4 Kh6+-) 56...Rf3 57.Qf3 (57.Qf3 gf3 58.Kf3-+). TimC (2365) - CharliePuth (2440), Rated Bullet game, lichess.org, 2015.

8.f4 c5 9.Nf3 0-0 10.Be2 Ne4 11.0-0 Nd7 12.d3 Nd6 13.c4 Nf5 14.Qc1 Bf6 15.Bf6 Qf6 (worse is 15...gf6 16.cd5 ed5 17.e4+=) 16.g4 (16.cd5 ed5 17.e4 Nd4=) 16...Nh4 (better is 16...Qg6!? 17.g5 b6+=) 17.g5+= Nf3 18.Bf3 Qg6 19.cd5 ed5 20.Bd5 Qd3 21.Bc4 (21.Nc3!?=) 21...Qe4+= 22.Re1 b6 (22...Nb6 23.Nd2 Qe7 24.Bd3=) 23.Nd2= Qf5 24.Nf1 Re8 25.Ng3 Qg4 26.Be2 Qh3 27.Bf3 Nf8 28.Qc3 Ng6 29.Bc6 Rd8 30.Bg2 Qg4 31.Rf1 Nh4 32.Be4 Rd6 (32...Bf5 33.Qe5 Be4 34.Qe4+=) 33.Qc2 (33.Qe5 Qe6=) 33...h6 (33...g6 34.Qa2+=) 34.gh6= gh6 35.Kh1 Qh3 (35...Bd7 36.Ra1+=) 36.Rg1 Kf8 37.Qc3 Qe6?? (better is 37...f6=) 38.Qh8+- Ke7 39.f5 Qd7 40.Qe5 Kd8 41.Nh5 (better is 41.Qf4 Qe7 42.Rf1+-) 41...Rd1? (better is 41...Bb7 42.Bb7 Qb7 43.e4 Qe7+-) 42.Qf6 Kc7 43.Qh4 Rg1 44.Kg1 Qd1 45.Kf2 Qd2 46.Kf3 Qd1 47.Kf4 Qf1 48.Bf3 Qb5 49.Kg3 Qd7 50.Qf4 Qd6 51.Nf6 Qf4 52.Kf4 b5 53.Bd5 Kd6 54.Bf7 Ke7 55.Be8 Kf6+= 56.e4 b4 57.e5 Ke7 58.Bb5 b3 59.f6 Kf7+= 60.Ba4? b2 61.Bc2+= Be6 ½–½. Matveenko,Yury (2150) – Skoriak,Ivan (1950), Seniors Russian Championship Men, 2011.

8.f4 c6 9.Nf3 0-0 10.Nc3 Qa5 11.Be2 cb5 12.Bb5 Bb4 (12...Bd7 13.Bd7 Nbd7 14.0-0=) 13.Bd3 Nbd7 14.0-0 Nc5 15.Be2 (15.Bb2 Nfe4=) 15...Rd8 16.Nb5 Nfe4 (16...Bd7 17.Bf6 gf6 18.Nbd4=) 17.c3 Ba3 18.Na3 Qa3 19.Qc2 Bd7 20.d3 Nd6 21.Nd4 Qa5 22.Bb2 Ba4 23.Qd2 Nb5 24.h3 (24.Rf3 f6+=) 24...Ra8= 25.Kh2 Nd4 26.ed4 Nb3 27.Qe3 Bd7 28.Bd1 Qb6 29.Bc2 (29.Rf2 h6=) 29...Ra2 30.Rb1 h6 31.Bd1 Na5 32.Qd2 Be8 (32...e5 33.fe5 Bf5=) 33.Bh5 Ba4 34.Kh1 (34.Kg3 Qc7=) 34...g6+= 35.Bf3 Nb3 36.Qe2 Kh7 37.Kh2 (37.Kg1 Qc7 38.Qe3 b5+=) 37...Qc7+= 38.Qe3 (38.Kg3 g5 39.Kf2 Nd4 40.cd4 Bc2-/+) 38...g5-/+ 39.Kg3? (better is 39.Bd1!?-/+) 39...b5-+ 40.Kh2 (40.Bc1 Rc2 41.Ba3 Nd2-+) 40...b4 41.c4 (41.cb4 Qc2 42.Be4 de4 43.Qe4 Kg8 44.Qa8 Kg7 45.d5 Rb2 46.Rb2 Qb2 47.de6-+) 41...Qf4 (41...gf4?! 42.Qe1 Qd6 43.cd5 ed5 44.Kh1-/+) 42.Qf4 gf4 43.Kg1 (43.Bc1 Nc1 (43...Nd4?! 44.Rb2 b3 45.cd5-+) 44.cd5 b3 45.de6 fe6 46.Rc1 b2 47.Rc7 Kg6 48.Be4 Kf6-+) 43...Be8 44.Bc1 (44.cd5 Nd2 45.Re1 Nf3 46.gf3 Rb2-+) 44...Nc1 45.Rc1 (45.Rb4 Nd3 46.Rb8 Bc6-+) 45...b3 46.Rb1 b2 47.Bd1 Ra1 48.Bc2 Ba4 49.Kh2 Bc2 50.Rb2 Bd3 51.c5 f6 52.c6 Rc1 53.Rb7 Kg6 54.c7 Be4 55.Ra7 Rc2 56.Kg1 Rg2 57.Kf1 Rc2 58.Ke1 f3 59.Ra3 Kg5 (59...Kg5 60.h4 Kh4-+) 0–1. pman3660 (2045) – mcjim (2060), gameknot.com, 2014.

8.f4 Nbd7 9.Nf3 c6 10.Be2 Nb6 11.0-0 0-0 12.bc6 bc6 13.Qe1 Bd7 14.d3 Bc5 15.Nd4 Qa8 16.Nd2 Qa5 17.N4b3 Be3 18.Kh1 Qb4 19.Bf6 Bd2 20.Qg3 (20.Nd2?! gf6 21.Qg3 Kh8=) 20...g6 21.Qh4 (21.Nd2?! Qd2 22.Bd1 Bc8=) 21...Bc3 22.Be7 Qa4?? (better is 22...Qb5 23.Bf8 Kf8 24.Qh7 Qa4+/–) 23.Bf8+- Kf8 24.Qd8 Kg7 25.Qb6 Qa8 26.d4 Qf8 27.Qc7 Be8 28.Qe5 Kg8 29.Qe3 Bb4 30.c4 dc4 (30...Bd7 31.Nc5 Qd8 32.Nd3+-) 31.Bc4 Bd6 32.Nc5 Bc5 33.dc5 h6 34.Ra1 Kh7 (34...Qe7 35.Ra8+-) 35.Ra8 (35.Ra7!? Kg8+-) 35...Qh8 (35...Qe7 36.Qe5+-) 36.Be6! 1–0. Braak,Jelle van den (1905) – Machado,Fausto A (1940), Netherlands – Portugal, 2005.

9.Nf3 Bd7 10.Be2 c6 11.Nc3 Qb6 12.bc6 Nc6 13.cd5 Nd5 14.Nd5 ed5 15.0-0 Bg4 16.Nd4 Be2 17.Ne2 Rd8 18.Nd4 Nd4 19.Bd4 Bc5 20.Bc5 Qc5 21.d4 Qc4 22.h3 Rc8 23.Qb1 b5 24.Qb2 g6 25.Rb1 Rb8 26.Qb4 (26.Rc1 Qa4+=) 26...Kg7 (26...Qb4!? 27.Rb4 f5=) 27.g3 (27.Qd6!? Rb7 28.g4+=) 27…h5 ½–½. mr5reasons1 (1735) – leonard55 (1680), gameknot.com, 2012.

9.Nf3 Nbd7 10.Be2 b6 11.0-0 Bb7 12.d4 dc4 13.Bc4 Nd5 14.Nbd2 N7f6 15.Be2 Re8 16.Ne5 Bd6 17.Ndc4 Nd7 18.Bf3 Ne5 19.de5 Bf8 20.Qb3 Qe7 21.Bd4 Qg5 22.Rd1 Rb8 23.Nd2 Ra8 24.Ne4 Qg6 25.Ng3 Ra3 (25...c5 26.bc6 Bc6 A) 27.Bb6? Ba4 28.Qd3 Bd1 (28...Nb6?! 29.Ba8 Qd3 30.Rd3 Na8 31.Rd8=+) 29.Qd1 Nb6-+; B) 27.Be4+=) 26.Qb2 Ra8 27.Rc1?? (27.e4 Nf4 28.Qc1 Qg5+-) 27...h6?? (better 27...Ba3 28.Qc2 Bc1 29.Qc1 Qd3-/+) 28.Be4 Qg5 29.f4 (better 29.Bd5 Bd5 30.Rc7+/-) 29...Nf4?? (better 29...Qd8 30.Ra1 Ra1 31.Qa1 Bb4=) 30.ef4+- (30.Bb7?! Nd3 31.Qb1 Nc1 32.Ba8 Ba3+-) 30...Qf4 (30...Qd8 31.Bb7 Ra7+-) 31.Qf2 (better 31.Bb7 Ra2 32.Qc3+-) 31...Qc1-+ 32.Qf1 Qf1 33.Kf1 Be4 34.Ne4 Ra4 35.Bb6 Re4 (35...cb6!? 36.Nd2-+) 36.Bc7 Rb4 37.b6 Bc5 38.Bd6 (38.Ke2 Bb6 39.Bb6 Rb6-+) 38...Bd6 39.ed6 Rb6 40.d7 Rd6 41.Kf2 Rd7 42.g4 (42.Ke2 g5-+) 42...Kf8 43.Kf3 (43.h4 Rd3-+) 43...Ke7 44.h4 f6 45.Kf4 White prepares the advance g5 (45.Ke3 Rd1-+) 45...Kf7 46.g5 (46.Ke4 Kg6-+) 46...e5 47.Kf5 (47.Kf3-+) 47...hg5 (47...Rd4 48.g6 Ke7 49.h5 Rf4) 48.hg5-+ fg5 49.Kg5 White threatens to counter with Rd6. . 49...Ke6 50.Kg4 Rf7 51.Kg5 (51.Kg3 e4 52.Kh4 e3 53.Kg4 e2 54.Kg3 e1Q 55.Kg4 Qg1 56.Kh5 Rf2 57.Kh4 Rh2) 51...e4 52.Kg6 (52.Kh4 e3 53.Kg4 e2 54.Kh4 e1Q 55.Kg4 Qg1 56.Kh5 Rf2 57.Kh4 Rh2) 52...e3 (52...Rf5 53.Kg7 Rg5 54.Kh6 Kf6 55.Kh7 Rh5 56.Kg8 e3 57.Kf8 Rh8) 53.Kh7 (53.Kh5 e2 54.Kh4 e1Q 55.Kg4 Qg1 56.Kh5 Rf2 57.Kh4 Rh2) 53...e2 54.Kg8 (54.Kg6 e1Q 55.Kh5 Qg1 56.Kh4 Rf8 57.Kh5 Rh8) 54...e1Q 55.Kh7 Qe2 (55...Qe4 56.Kg8 g5 57.Kh8 Qh7) 56.Kh8 Qh5 (56...g5 57.Kg8 Qd3 58.Kh8 Qd8) 57.Kg8 g5 (57...Rf8 58.Kg7 Rf7 59.Kg8 Qh7) ½-½. BeepBeepImAJeep (2665) - TayTay94 (2385), lichess.org, 2016.

9.Nf3 Nbd7 10.Be2 Nb6 11.cd5 ed5 12.0-0 Bf5 13.d4 (13.Nd4 Bg6=) 13...Re8 14.Nc3 Bd6 15.Qb3 Ne4 16.Nb1 (16.Bb2 Bg4 17.Qc2 Ng5 18.Ng5 Qg5 19.Bg4 Qg4=) 16...c6 (16...Bg4 17.h3 Be6 18.Bb2=+) 17.Nbd2 (17.Rc1 Qc7=) 17...Nd7 18.bc6 bc6 19.Bc3 Nc3 20.Qc3 Qc7 21.Rc1 Rc8 22.h3 (22.Ba6 Rd8=) 22...Nf6 (22...c5=) 23.Ne5 Attacking the backward pawn on c6 (23.Ba6 Rb8+=) 23...Bd7?? (23...c5 24.Bd3 Bd3 25.Nd3=+) 24.f4 (24.Ba6!? Ra8 25.Nd7 Ra6 26.Nf6 gf6 27.Nf3+/-) 24...h6 (24...Qd8 25.Ba6 Rc7 26.Qa5=) 25.Bd3 (25.Ba6 Re8+=) 25...c5= 26.Ndf3 (26.Ba6 cd4 27.Qc7 Rc7 28.Rc7 Bc7 29.ed4 Be6=) 26...c4 27.Bb1 Rb8 28.Nd2 (28.e4 de4 29.Nd2 Qa7=+) 28...Qb7 29.Bc2?? (29.Qc2 Ba3 30.Rd1 Bb4-/+) 29...Be6 (better 29...Bb4 30.Qb2 Bd2 31.Bh7 Kh7 32.Qd2 Be6-+) 30.Rb1-/+ Qc8 (30...Bb4 31.Qa1-/+) 31.Rb8 Qb8 32.Ndf3 Bd7 (32...Qb7 33.Qa1=+) 33.Qa1 Bb5 34.Qb1 Qb6?? (34...Ba6 35.Qa1 Qb5 36.Nh4=+) 35.g4?? (better 35.Ba4!+-) 35...Qa6 36.g5 hg5 37.fg5 Nd7 38.Bh7 Kf8 39.Qf5 Ne5 40.Ne5 Be5 41.Qe5 Qe6 (41...g6 42.Qd5 Kg7 43.Bg6 Kg6 44.e4=+) 42.Qe6 fe6 43.Bc2 Ke7 44.Kf2 Kd6 45.Kf3 e5 46.Ke2 ed4 47.ed4 Bd7 48.Ke3? (better 48.h4=) 48...Bh3-+ 49.Kf4 Be6 50.Ke3 Kc6 51.Bd3? (better 51.Kd2!?-/+) 51...Kb5 (51...cd3!? 52.Kd3 Kb5 53.Kc3-+) 52.Bc2 (52.Bh7 Kb4-+) 52...Kb4 53.Kd2 (53.Bd1 Bf5 54.Kf4 Be4-+) 53...c3 54.Kc1 (54.Ke3 Ka3-+) 54...Bg4 (better 54...Kc4-+) 55.Bd3 Kb3 56.Bc2 (56.Bb5-+) 56...Kc4 57.Bf5 (57.Bg6-+) 57...Kd4 (better 57...Bf5 58.Kd1 Kd4 59.Ke2 Bg4 60.Ke1 Ke3 61.Kf1 c2 62.Kg2 c1Q 63.g6 Bf3 64.Kg3 Qg1 65.Kh3 Qg4 66.Kh2 Qg2) 58.Bg4= Ke3 59.Bh5 (59.g6 d4=) 59...d4 (59...Kf4 60.g6 Kg5=+) 60.Bg6?? (60.Kc2 Kf4 61.Bd1 Kg5=) 60...d3 (better 60...Kf4-+) 61.Bd3?? (better 61.Kd1=+) 61...Kd3-+ 62.Kd1 If White now would get g6 in, he might survive 62...g6 63.Kc1 c2 64.Kb2 Kd2 65.Kb3 c1Q 66.Kb4 Qc2 (66...Qc6 67.Kb3 Qb5 68.Ka3 Kc3 69.Ka2 Qb2) 67.Kb5-+ Qc3 68.Kb6 (68.Kb6 Qe3 69.Kc6 Qg5 70.Kd6-+). BeepBeepImAJeep (2745) - Spiritchaser84 (2420), lichess.org, 2016.

9.Nf3 Ne4 10.Be2 f6 11.0-0 c5 (11...dc4 12.Bc4 Nd6 13.Bd3=) 12.Qb3 Kh8 13.Rd1 dc4 14.Bc4 Qb6 15.d4 Rd8 16.Bd3 Nd6 17.Nc3 cd4 18.ed4 Nf5 1–0. Danek,Vaclav (1990) – Soukal,Roman (1915), CZE–chT2a, 2007.

9.Nf3 Ne4 10.Be2 Bf6 11.d4 c6 12.0-0 cb5 13.c5 (13.cb5 Qa5 14.Nbd2 Be7=) 13...Nd7 (13...b6 14.cb6 b4 15.Nbd2 Nd2 16.Qd2-/+) 14.Bb5 (14.Nbd2 b6 15.c6 Nb8 16.Ne4 de4=) 14...Nb8 (better 14...Ndc5!? 15.Nbd2 Qb6 16.dc5 Qb5 17.Bf6 Nf6=+) 15.Nbd2+= Nd2 16.Qd2 Bd7 17.Bd3 Bc6 18.Qc2 g6 19.Bc3 Nd7 20.Rb1 Qe7 21.Qb2 Bg7 22.Bb5 Nb8 23.Bf1 h5 (23...Nd7 24.Ra1+=) 24.Ne5 (24.Ra1 Nd7+/-) 24...Kh7 (24...Be5 25.de5 Qc5 26.Bb4+=) 25.Nc6 bc6 26.Qb7 Qf6 (26...Qb7 27.Rb7 Bf6 28.Ba5+-) 27.Qc7 (better 27.Qa7 Qd8 28.Ba5+-) 27...Qg5?? (better 27...Qd8 28.Qa7 Qc8+/-) 28.Rb8+- Rb8 29.Qb8 h4 (29...Qf5 30.Qe8+-) 30.Qf4 (30.Qf4 Qf4 31.ef4+-) 1-0. BeepBeepImAJeep (2740) - patzerplay (2550), lichess.org, 2020.

10.Bc4 b6 11.0-0 Bb7 12.d4 c6 13.Nbd2 c5 (13...cb5 14.Bb5 Qd5 15.Qe2=) 14.Be2 Nbd7 15.Nc4 cd4 16.Nd4 Nc5 (16...Qc7 17.Qc2=) 17.Bf3 Bf3 (17...Nfe4!?+=) 18.Qf3+/- (18.gf3?! Nd5=) 18...Qd5 (18...Nfd7 19.Nc6 Qe8 20.Rb1+/-) 19.Nc6 Bd8 20.Bf6 Qf3 21.gf3 gf6 22.Ra1 f5 23.Ra7 Nd3?? (23...Kg7 24.Kf1+- (24.Nd8?! Rd8 25.Nb6 Rb8+=)) 24.Rb7 (better 24.Rd7 Nc5 25.Rd8 Rd8 26.Nd8+-) 24...Nc5 25.Ra7 Nd3 26.Kf1 (better 26.Rd7 Nc5 27.Rd8 Rd8 28.Nd8+-) 26...Nc5 27.Ke2 Kg7 28.Nd6 Bf6 29.Nc4 Bd8 30.N4e5 (30.h3 h6+-) 30...Bf6+/- 31.Nd7 (better 31.Nd3 Nd3 32.Kd3+/-) 31...Re8?? (better 31...Nd7 32.Rd7 Ra8=) 32.Nb6 (better 32.Nc5!? bc5 33.b6 Bd8+-) 32...Rg8 (32...e5 33.Nd5+-) 33.Nd7 (better 33.Nc4+-) 33...Kh6?? (33...Nd7 34.Rd7 Rc8+-) 34.Nc5 Rb8 (34...Rc8+-) 35.Nb8 (35.Nb8 Bh4 36.Nc6+-) 1-0. BeepBeepImAJeep (2610) - MaitreCourse (2300), lichess.org, 2019.

10.Bc4 c6 11.0-0 Bd7 12.Nc3 cb5 13.Bb5 Nc6 14.Be2 Re8 15.Qb3 Na5 16.Qb1 Qc8 17.d4 Nc4 18.Rc1 Na3 (18...Bc6!?+=) 19.Qb3+/- Qa8 20.Bb2 b5 21.Ra1 (21.Ne5!?+/-) 21...b4= 22.Na2 (22.Ne5!? bc3 23.Ba3+=) 22...Ba4=+ 23.Qd3 Bc2 (23...Nc2 24.Rb1=+) 24.Qd2= Rc8?? (better 24...Qa4=) 25.Nb4+- Bb4 (25...Rb8 26.Ra3 (26.Nc2?! Rb2 27.Qd3 Rb1 28.Rb1 Nb1+/-; 26.Ba3?! Rb4 27.Qc2 Ra4+-) 26...Ba4 27.Na6+-) 26.Qb4 Be4 27.Qa3 Qd5 (27...Qb8 28.Bc3+-) 28.Rc1 Rd8 (28...Rc1 29.Bc1 Qd8 30.Ne5+-) 29.Qc3 (29.Ne5!? Qb7 30.Ba6 Qa7+-) 29...h6 30.Qc5 Qd7 31.Qc7 Qe8 (31...Qc7 32.Rc7 Rb8 33.Bc1+-) 32.Bb5! Qf8 (32...Qb5 33.Qd8 Deflection) 33.Ba3! Qa3 (33...Nd5 34.Bf8 Nc7 35.Rc7 Rf8 36.Ne5+-) 34.Qd8 Kh7 35.Qc7 Nd5 36.Qc5 Qb2 37.Bf1 Bg6 (37...Bf3 38.gf3 Qd2 39.Qa3+-) 38.Ne5 Bf5 (38...Qd2 39.Qa3 Qb4 40.Qa8+-) 39.Bd3 (better 39.Nf7!? Bg6 40.Qf8 Bf7+-) 39...Bd3 40.Nd3 Qd2 41.Qc2 Qa5 (41...Qc2 42.Rc2 g6 43.e4+-) 42.Nb4 (42.Ne5!? f5+-) 42...g6 43.Nd5 Qd5 44.Qc6 Qa2 (44...Qc6 45.Rc6 Kg7 46.e4+-) 45.Qf3 (45.Qc7 Kg7 46.Qe5 Kh7+-) 45...Kg8 (45...Kg7 46.e4 Qb2 47.Rd1+-) 46.h4 Qa7 (46...Kg7 47.Rc7 Qb1 48.Kh2+-) 47.Rc8 (47.h5!? Kg7 48.hg6 f6+-) 47...Kg7 48.Ra8 (48.Qc6 Qa5 49.Qe8 Kf6 50.Qh8 Kf5 51.Rc5 Qc5 52.dc5 e5+-) 48...Qe7 (48...Qc7 49.h5 Qc1 50.Kh2 Qc7 51.Kh3 gh5 52.Qh5+-) 49.Rb8 (better 49.Qf4!? e5 50.de5 g5+-) 49...Qh4 50.Rb7 (50.Qa8!? Qf6+-) 50...Qf6 51.Qf6 Kf6 52.g4 h5 53.gh5 gh5 54.Kg2 Kg6 55.Kg3 f6 56.f4 Kf5 57.Kf3 e5 (57...Kg6+-) 58.e4 Ke6 59.f5 Kd6 60.Ke3 (60.de5 fe5 61.f6 Kc6 62.Ra7 Kd6 63.f7 Kc5 64.f8Q Kb5 65.Qb8 Kc4 66.Rc7 Kd4 67.Qd8) 60...ed4 61.Kd4 Kc6 62.Rh7 h4 (62...Kd6 63.Rf7 h4 64.Rf6 Ke7 65.Re6 Kf8+-) 63.Rh4 Kd6 64.Rh6 Ke7 65.Rh7 Kf8 66.Kd5 Ke8 (66...Kg8 67.Rh3 Kg7 68.Ke6 Kf8 69.Kf6 Ke8 70.Rd3 Kf8 71.Rd8) 67.Rb7 (67.Ke6 Kf8 68.Re7 Kg8 69.Kf6 Kf8 70.e5 Kg8 71.Re8 Kh7 72.e6 Kh6 73.Rh8) 67...Kf8 (67...Kd8 68.Rf7 Ke8 69.Ke6 Kd8 70.Rd7 Ke8 71.e5 fe5 72.f6 e4 73.f7 Kf8 74.Kf6 e3 75.Rd8) 68.Kd6 (68.Ke6 Kg8 69.Kf6 Kh8 70.Kg6 Kg8 71.Rb8) 68...Kg8 (68...Ke8 69.Re7 Kf8 70.Ke6 Kg8 71.Kf6 Kf8 72.e5 Kg8 73.Re8 Kh7 74.e6 Kh6 75.Rh8) 69.Ke6 Kh8 (69...Kf8 70.Re7 Kg8 71.Kf6 Kf8 72.e5 Kg8 73.Re8 Kh7 74.e6 Kh6 75.Rh8) 70.Kf6 Kg8 71.Rc7 Kf8 (71...Kh8 72.Kg6 Kg8 73.Rc8) 72.Rc8 1-0. BeepBeepImAJeep (2735) - Clown_laughing_at_u (2790), lichess.org, 2020.

10.Bc4 c6 11.Nc3 cb5 12.Bb5 Nc6 13.0-0 Nd5 14.d4 Nc3 15.Bc3 Bd7 16.Qb3 Na5?? (better 16...Qc7+=) 17.Ba5+- Qa5 18.Bd7 Bd6 (18...Qc7 19.Bb5+-) 19.Qb7 (19.Be6 b5+-) 19...Qh5 20.Bb5 (20.Ra1 Qg6+-) 20...g5 (20...Rb8 21.Qd7 Bh2 22.Nh2 Qb5 23.Qb5 Rb5+-) 21.h3 g4 22.hg4 Qg4 23.Ne5 (23.Qd7 Bb8+-) 23...Qh5 (23...Be5 24.de5 Rd8 25.Qe7+-) 24.Qf3 Qh6 (24...Qf3 25.Nf3 Ra8 26.Rb1+-) 25.Ng4 Qh4 26.Qh3 (26.g3 Qe7+-) 26...Qg5 27.f4 (27.Bc6 f5 28.Nh2 Rf6+-) 27...Qg6?? (27...Qb5 28.f5! ef5 29.Nf6 Kg7+-) 28.Qf3 (28.f5 ef5 29.Nh6 Kh8 30.Nf5 Bb4+-) 28...Kh8 29.e4 Rg8 30.Be2 h5 (30...Rd8 31.f5 Qg5 32.fe6 fe6 33.Qf7+-) 31.Ne5 Be5 32.de5 f6 (32...h4 33.Kf2+-) 33.Qh5 (33.ef6!? Qf6 34.Qh5 Kg7+-) 33...Qh5 34.Bh5 fe5 35.fe5 (35.f5 ef5 36.Rf5 Kg7+-) 35...Rg5 36.Bf3 (better 36.Bf7!? Re5 37.Rf4 Kg7+-) 36...Re5 37.Kf2 Rg5 38.Ke3 Kg7 (38...e5 39.g4+-) 39.Kf4 (39.Kd4!? Ra5+-) 39...Kf6 40.Rh1 e5 41.Ke3 Rg6 42.Rh5 Ke6 43.Rf5 Kd6 44.g4 Re6 (44...Rh6 45.Rh5 Rg6 46.g5+-) 45.g5 Rg6 46.Bg4 Rg7 47.Rf6 Ke7 48.Re6 Kd7 (48...Kf8 49.Re5 Ra7 50.Rf5 Kg7 51.Rf6+-) 49.Re5 (49.Rg6 Kc7 50.Rg7 Kb6 51.g6 Kb5 52.Re7 Kb6 53.g7 Kb5 54.g8Q Kb6 55.Qb8 Kc5 56.Rc7 Kd6 57.Qb6) 49...Kd6 (49...Kd8 50.Kf4+-) 50.Rf5 Ke6 51.Kf4 Kd6 52.e5 Kd5 53.Rf6 Rg8 (53...Kc5 54.Kf5+-) 54.Rd6 (better 54.Be6 Kd4 55.Bg8 Kc3 56.e6 Kc2 57.e7 Kb2 58.e8Q Kc2 59.Rc6 Kd1 60.Bb3 Kd2 61.Qe3) 54...Kc5 55.Rd7 Rf8 56.Bf5 Re8 57.g6 Rg8 58.g7 Kc6 59.Bh7 Re8 60.e6! Re6 61.g8Q Rf6 62.Bf5 (better 62.Ke5 Kd7 63.Qg7 Rf7 64.Qf7 Kc6 65.Qd5 Kb6 66.Bd3 Ka7 67.Qd7 Kb6 68.Kd6 Ka5 69.Qb5) 62...Rf5 63.Kf5 Kd7 64.Qe6 (64.Qc4 Ke7 65.Qc7 Ke8 66.Ke6 Kf8 67.Qf7) 64...Kc7 65.Ke5 (65.Ke5 Kb7 66.Qd6 Kc8 67.Qb6 Kd7 68.Qb7 Kd8 69.Ke6 Ke8 70.Qe7) 1-0. BeepBeepImAJeep (2550) - bulletmaniac (2335), lichess.org, 2016.

10.Bc4 Nbd7 11.0-0 Nb6 12.Be2 Bd6 13.d4 Bd7 14.Nbd2 Nfd5 15.Qb3 (15.Ne4 Qe7+=) 15...Qe8 16.Ne4 Qe7 17.Bb2 Bb4 18.Rc1 f5 (18...Ra8 19.Nc5+=) 19.Nc5+/- Bc8 20.Ne5 Rf6 (20...Rd8 21.Bh5+/-) 21.Bf3 (21.Ned3 Ba5+-) 21...Rh6 (21...Bd2 22.Ra1+-) 22.g3 (22.Ned3 Bc5 23.dc5 Nd7+-) 22...Rf6 (22...g5 23.Ned3 g4 24.Bg2+- (24.Nb4?! gf3 25.Nbd3 Qe8+/-)) 23.Ned3+- Bc5? (better 23...Ba5+-) 24.dc5 (24.Rc5?! Bd7+/-; 24.Nc5?! Rf7+/-) 24...Nd7 25.Bf6 N7f6 26.Nf4 (26.Ra1 Qf8+-) 26...Nf4 27.ef4 h6 28.Re1 (28.c6 b6+-) 28...Kh7 (better 28...Qc5 29.Re5 Qc1 30.Kg2 Kh7+-) 29.c6 bc6 30.bc6 1-0. BeepBeepImAJeep (2690) - Dtruns (2160), lichess.org, 2016.

10.Bc4 Nbd7 11.0-0 Nb6 12.Be2 Bd7 13.d4 c6 14.Nc3 c5 (14...cb5 15.Nb5 Bc6 16.Ne5=) 15.Qb3 (15.Na4!?+=) 15...cd4= 16.Nd4 Nfd5 (16...e5!? 17.Nf3 Bd6=) 17.Rd1 Qa8 18.Bb2 Rd8 19.Ra1 Qb8 20.h3 Bd6 21.Ne4 Be7 22.Rc1 Nf6 23.Nc5 Be8? (23...Bd6 24.Nf3+=) 24.Ba3 (better 24.Nce6!? Rd6 25.Nf4+-) 24...Bc5 25.Bc5 Nfd7 (25...Nbd5 26.Bc4+=) 26.Bb4 (26.Bb6!? Nb6 27.Ne6+-) 26...Nd5+= 27.Be1 N7b6 28.Bf3 Rc8 29.Rd1 Rd8 30.Ba5 Rd6 31.Ne2 Nf6 (31...Qa8 32.Bb4 Rd8 33.Ba3+=) 32.Rc1 (32.Rd6 Qd6 33.Bb7 Qb8+-) 32...h6 (32...e5 33.Ng3 Nbd5 34.e4+=) 33.Ng3 Nfd5 34.Ne4 Rd7? (better 34...Rd8!?+/-) 35.Nc5+- Rd6? (better 35...Rc7 36.Bd5 Qa7 37.Bb6 Qb6 38.Bb7 Rc5 39.Rc5 Qc5+-) 36.Nd3?? (better 36.e4+-) 36...Nd7 37.Nb2 (better 37.Nf4 Nf4 38.Bc7+/-) 37...N7f6? (37...b6 38.Bb4 Nb4 39.Qb4+=) 38.Nc4 (better 38.e4+-) 38...Rd7+/- 39.Nb6 Rd6?? (39...Rc7!? 40.Rc7 Nc7+=) 40.Nd5 (better 40.Rc8 Qa7 41.Ra8 Qa5 42.Ra5 Nb6 43.Ra7+-) 40...Nd5 41.Be1 (41.e4 b6 42.Bd2+- (42.ed5?! ba5 43.Rb1 ed5+=)) 41...b6 42.Qc2 (42.Qc4 Rd8+=) 42...Qd8 (42...Bb5 43.Qb2 Rc6 44.Ra1=+) 43.Qc8 (43.Qb2+=) 43...Kf8 (43...Bb5 44.e4 Nf4 45.e5=+) 44.Qd8 (44.e4!? Ne7 45.Qa6+/-) 44...Rd8= 45.Rb1 Ke7 46.e4 Nf4 47.Bb4 Kf6 48.Bc3 (48.e5!? Ke5 49.Bc3 Kf5 50.Bg7+=) 48...e5=+ 49.g3? (49.Kf1 Bd7=+) 49...Nd3 (better 49...Nh3 50.Kg2 Ng5-/+) 50.Be2= Nc5 51.f4 Ke6 (51...Ne4!? 52.Be5 Kg6+=) 52.Bg4 White plans f5 52...Ke7 53.Be5 f6? (better 53...Rd3 54.f5 f6+/-) 54.Bc3?? (54.Bc7 Rd3 55.Bb6 Rg3 56.Kh2 Na4 57.Kg3 Nb6+-) 54...Ne4?? (better 54...h5 55.Be2 Ne4 56.Bb4 Ke6=) 55.Re1+- Bg6 (55...Kf7 56.Re4 Bb5 57.Be6 Kg6 58.f5 Kh7 59.Rb4 Rd1 60.Kf2 Rf1 61.Ke3+-) 56.f5 Rd3 57.Re4 Kd6 58.fg6 Rc3 59.Re6 Kd5 (59...Kc5 60.Rf6! Rg3 61.Kf2+-) 60.Rc6! Rg3 (60...Rc6 61.Bf3 Deflection (61.Bf3 Decoy)) 61.Kf2 Re3 (61...Ra3+-) 62.Bf3 (62.Ke3 f5 63.Bf5 Ke5 64.Rb6 Kf5 65.Rc6 Ke5 66.b6 Kd5 67.Rc8 Ke6 68.b7 Kd6 69.b8Q Ke6 70.Qb6 Ke7 71.Rc7 Ke8 72.Qb8) 62...Kd4 63.Rd6 Ke5 64.Rd5 (64.Rd5 Kf4 65.Rd4 Kf5 66.Ke3 Kg6 67.Kf4+-) 1-0. BeepBeepImAJeep (2645) - DarkApollyon (2410), lichess.org, 2016.

10.Bc4 Nfd7 11.Be2 Bf6 12.d4 c6 13.0-0 cb5 14.Bb5 Nc6 15.Nc3 Ne7 16.Ne4 g6?? (better 16...Nd5+=) 17.Bd7+- Nd5 18.Bc8 Qc8 19.Nf6 Nf6 20.d5 (20.Ne5 Nd7+-) 20...Nd5 21.Qd4 (21.e4!? Ne7+-) 21...f6 22.h3 Re8 (22...b5 23.Qd2+-) 23.Rd1 (better 23.e4 Qc6 24.ed5 ed5+-) 23...Rf8 24.Qe4 (24.Ng5 h6 25.Ne6 Qe6 26.Qd5 Qd5 27.Rd5 Kg7+-) 24...Qc6 (24...Rd8 25.Qb1 Rf8 26.e4+-) 25.Nd4 Qd6 (25...Qe8 26.Rb1+-) 26.Ne6 Qe6 (26...Ra8 27.Bb2 Re8+-) 27.Qe6 Kg7 (27...Kh8 28.Rd5 h5 29.Bf6 Rf6 30.Qf6 Kh7 31.Rd8 b5 32.Qh8) 28.Qd5 (28.Rd5 h5 29.Qe7 Rf7 30.Bf6 Kh6 31.Qf7 b5 32.Qg7) 28...Kh6 29.Qd6 (29.Qd6 Kg7 30.Qe7 Rf7 31.Bf6 Kh6 32.Qf7 b5 33.Qf8 Kh5 34.g4; 29.Qb7 Re8 30.Bf6 Rg8 31.Qd5 g5 32.Qg8 g4 33.Qg5) 1-0. BeepBeepImAJeep (2770) - Liddari (2450), lichess.org, 2019.

10.Be2 cb5 11.cb5 b6 12.0-0 Nbd7 13.d4 Ne4 14.Nc3 Ndf6 15.Ne5 Nc3 16.Bc3 Ne4 17.Bb2 Bd7 18.Bd3 Bf6 (18...Qe8 19.Qe2+=) 19.Nd7 (19.Nc6!? Bc6 20.bc6+/-) 19...Qd7= 20.Qc2 Nd6? Attacking the isolated pawn on b5 (20...Rc8 21.Qe2=) 21.Ba3 (21.Bh7 Kh8 22.Bd3 Rc8+/-) 21...Rd8 (21...Rc8 22.Qa4= (worse 22.Bh7 Kh8 23.Qb1 Nb5-/+)) 22.Rc1 (22.Bh7 Kh8 23.Bd6 Qd6+/-) 22...g6 (better 22...Nb5!? 23.Bb2 g6=) 23.Qc6+/- Qc6 24.Rc6 (better 24.bc6 Ne8 25.Rc3+/-) 24...Ne4? (better 24...Nc8!?+/-) 25.Be4 de4 26.g3 (26.Rb6 Kg7 27.Bd6 Rd7+-) 26...Rb8? (better 26...Ra8 27.Bd6 Bd8+=) 27.Bd6+- Rb7?? (better 27...Rd8+-) 28.Rc8 Kg7 (28...Bd8 29.Be5 Kf8+-) 29.Bf8 Kg8 30.Bh6 Bd8 31.Rd8 1-0. BeepBeepImAJeep (2505) - sasaue (1985), lichess.org, 2017.

10.Be2 cb5 11.cb5 Nbd7 12.0-0 Nb6 (12...b6 13.Qc2=) 13.d4 (13.Qb3 Bd7=) 13...Bd7= 14.Nbd2 (14.Ne5 Be8=) 14...Qb8 (14...Qa8 15.Qb3=) 15.Ne5 (15.Qb3 Qd6=) 15...Rc8 16.Qb1 (16.Qb3 Qa7=) 16...Be8 17.Bd3 (17.Rc1 Rc1 18.Qc1 Ne4=) 17...g6 (17...Qa7 18.Re1=+) 18.Rc1= Nfd7 19.Bf1 (19.g3 Rc1 20.Qc1 Qc8=) 19...Ne5 (19...Qa8 20.Rc8 Nc8 21.Bc3=+) 20.de5= Rc1 21.Qc1 Qc8 22.Qb1 (22.Qc8 Nc8 23.Bd4 Kg7=) 22...Bd7 23.Bd4 Bc5 (23...Nc4 24.Nc4 dc4 25.Be2=) 24.Nb3 (24.Qa1 Bb4 25.Qa7 Bd2 26.Qb6 Bb4+=) 24...Bd4= 25.Nd4 (25.ed4 Nc4 26.Nc5 b6=) 25...Nc4 26.Qa1 Ne5 (26...Qb8 27.Bc4 dc4 28.f4=) 27.Ne6 Be6 (27...Nf3 28.gf3 Be6 29.Qe5=) 28.Qe5+= Qd7 (28...Qc5 29.h4+=) 29.h3 (29.h4 Bg4+=) 29...h5 (29...Qc8 30.g4+=) 30.f4 (30.Bd3 Kf8+=) 30...Bf5= 31.b6 Qc6 (31...Qe6 32.Qe6 Be6 33.Be2=) 32.Qd4 (32.Qc7 Bd7=) 32...Be4 (32...h4 33.Be2=) 33.Qb2 Qc5 34.Kf2 Qc6 35.Be2 (35.Kg1 h4=) 35...d4 (35...h4 36.Bd1=) 36.Qd4 Bg2 37.h4 Bh1 38.Qd8 Kg7 39.Qc7 (39.f5 Qg2 40.Ke1 Qg3 41.Kd2 gf5 42.Bh5 Qf2 43.Be2 Bf3 44.Qg5 Kf8 45.Qd8 Kg7 46.Qg5 Kf8 47.Qd8 Kg7=) 39...Qg2=+ 40.Ke1 Qg3 41.Kd2 Qh4 42.Bc4? (better 42.e4=+) 42...Qf6-+ 43.Kd3 (43.Qc5 h4 44.Bf1 Be4-+) 43...Qf5 (better 43...h4 44.e4 h3-+) 44.Kc3? (44.Ke2-+) 44...h4 45.Bd3 Qf6 (better 45...Qa5 46.Kb2 Bc6-+) 46.Kd2 (46.Kc2 Bf3 47.f5 gf5 48.Bf1-+) 46...h3 47.f5 g5 (better 47...Qb2!? 48.Bc2 Be4 49.f6 Kf6 50.Qf4 Bf5 51.e4 Qd4 52.Kc1 Qg1 53.Kd2 Qg2 54.Kc3-+) 48.Qg3 (48.e4 Qb2 49.Ke3 h2-+) 48...Bg2 49.e4 (49.Kc2 Kh6 50.Qc7 Bf3-+) 49...Qb2 50.Bc2 (50.Ke1 Qb4 51.Kd1 Kh6-+) 50...Qd4 (better 50...Kh6!? 51.Qd6 Kh5 52.Qg3-+) 51.Ke2 Kf6 52.Qg4 (52.Qb8 Qc4 53.Kd2 Be4 54.Qh8 Kf5 55.Qh3 Kg6 56.Bd1 Qd4 57.Kc1-+) 52...Qc4 (better 52...Qc3 53.Bd3 Qb2 54.Kd1-+) 53.Bd3 Bf1!! 54.Kf1 Qd3 55.Ke1 (55.Kg1-+) 55...Qe3 (55...h2 56.e5 Ke5 57.Qh5 Qe4 58.Kd2 Qd5 59.Kc3 h1Q 60.Qh1 Qh1 61.Kc4 Qg1 62.Kd3 Qb1 63.Kd2 Ke4 64.Kc3 Qc1 65.Kb4 Kd4 66.Kb3 Qb1 67.Ka4 Kc4 68.f6 Qb4) 56.Kd1 Ke5 (56...h2 57.Qh5 Qg1 58.Kd2 h1Q 59.Qh1 Qh1 60.e5 Ke5 61.Kd3 Qd1 62.Ke3 Qd4 63.Kf3 g4 64.Ke2 Kf5 65.Ke1 g3 66.Ke2 g2 67.Ke1 g1Q 68.Ke2 Qgf2) 57.Qh5 Qd3 58.Kc1 Qe4 (58...Qf1 59.Kc2 Qg2 60.Kc3 h2 61.Qf7 Qf3 62.Kd2 Qf4 63.Kc3 Qe3 64.Kc2 Qe4 65.Kb3 h1Q 66.Qg7 Kf4 67.Qc7 Kg4 68.Qg3 Kg3 69.Kb2 Qc4 70.f6 Qhc1) 59.Qh3 Qf5 (better 59...g4 60.Qh8 f6-+) 60.Qc3 Kf4?? (better 60...Kd5 61.Qc7 Qf1 62.Kd2 Qg2 63.Ke3 Ke6-+) 61.Qc7= Qe5 62.Qb7 (better 62.Qf7 Kg3 63.Qb7 Qe3 64.Kd1 Qd3 65.Ke1 Qe3 66.Kd1 Qd3 67.Ke1 Qe3 68.Kd1=) 62...g4?? (better 62...Qc3!? 63.Kb1 Qb3 64.Kc1 Qe3 65.Kb2 Qd4 66.Kb3 Qd3 67.Kb4 Qd4 68.Kb5 Qe5 69.Kc6 Qe4 70.Kc7 Qe5 71.Kd7 Qe6 72.Kd8 Qf6 73.Kc8 Qe6 74.Kb8 g4=) 63.Qf7 (better 63.Qc7 f6 64.Qe5 fe5 65.b7+-) 63...Ke3?? (63...Kg5 64.b7 Qe3 65.Kc2 Qc5 66.Kb2 Qb4 67.Kc1 Qc3 68.Kd1 Qd3 69.Ke1 Qc3 70.Kf2 Qd4 71.Kg2 Qe4 72.Kg3 Qe5 73.Kg2 Qe4 74.Kg1 Qe1 75.Qf1 Qg3 76.Qg2 Qe1 77.Kh2 Qe5 78.Qg3 Qb2 79.Qg2 Qe5 80.Kh1 Qe1 81.Qg1 Qe4 82.Qg2 Qe1 83.Kh2 Qe5=) 64.Qb3+- Kf4 65.b7 Qc7 (65...Qe1 66.Kb2 Qe5 67.Ka3+-) 66.Kd2 (better 66.Kb1 Qb8 67.Qa4 Kg5 68.Qa8+-) 66...Qd6 67.Ke1 Qe5 (67...Qb8 68.Qc4 Kf3 69.Qc6 Kf4 70.Kd1+-) 68.Kf1 (better 68.Kf2 Qc5 69.Kf1+-) 68...Qb8 69.Kg2 Kg5 70.Qb5 Kh4 71.Qc6?? (better 71.Kh1 g3 72.Qc4 Kg5 73.Qc1 Kh5 74.Qc5 Kg6 75.Qc6 Kg5 76.Kg2+-) 71...Qa7?? (better 71...Qg3 72.Kf1 Qf4 73.Ke2 g3+=) 72.Qh6 1-0. Timmermans,M (2385) - Kanakaris,G (2400), Titled Tuesday, 2021.

10.Be2 dc4 11.Bc4 cb5 12.Bb5 Qa5 13.Nc3 Nc6 14.Be2 (14.0-0 e5=) 14...Bd7 15.0-0 b5 (better 15...e5!?=) 16.Bb5+/- Rb8 17.Be2 Nb4 18.Nd4 (18.d4 Bd6+/-) 18...Nfd5 19.Nd5 Qd5 20.Bf3 Qa5 (20...Qd6 21.Be4+=) 21.Qb3 (better 21.Be4+/-) 21...Nc6?? (better 21...Bd6+=) 22.Nc6+- (worse 22.Bc6 Rb3 23.Nb3 Qd8 24.Bd7 Qd7=+) 22...Rb3 23.Na5 Ra3 24.Bc3 1-0. BeepBeepImAJeep (2545) - slava73 (2390), lichess.org, 2017.

10.Be2 Nbd7 11.0-0 Nc5 12.d4 Nce4 13.Nbd2 Bd7 14.bc6 bc6 (14...Bc6 15.Ne5=) 15.Ne5 c5 (15...Bb4 16.Ne4 Ne4 17.Bd3+=) 16.Ne4 Ne4 (16...de4 17.Qb1+=) 17.cd5+/- ed5 18.dc5 Be6 (18...Nc5 19.Qd5 Be6 20.Qd8 Bd8 21.Bd4+/-) 19.Nc6+- Qc7 20.Ne7 Qe7 21.Qd4 f6 22.c6 Rc8 23.Rc1 Qd6 24.Qb6 (24.f3 Ng5 25.Qc5 Qc7+-) 24...Bd7 (24...Nd2!?+/-) 25.Bb5+- Qa3 26.Rf1 (26.cd7?? Rc1 27.Bf1 Rf1 28.Kf1 Qd3 29.Ke1 Qd2 30.Kf1 Qf2) 26...Be8 27.Qb7 (27.Bd4 Qb4 28.c7 Qe7+-) 27...Qa8 (27...Nd6 28.Qe7+/-) 28.Qa8+- Ra8 29.Bd4 (29.Rc1 Nd6 30.Bf1 Rc8+/-) 29...Rc8 (better 29...Nd6!? 30.Be2 Ra2+/-) 30.Rc1+- Nd2 31.c7?? (better 31.Ba4+-) 31...Bb5-+ 32.Ba7 Nc4 33.Bb8 Kf7 34.Rd1 Bc6 35.Rd4? (35.Kf1 Ke6-+) 35...Ke6 (35...Na3 36.h3-+) 36.e4? (36.Rh4 h6-+) 36...Ne5 (better 36...Nd6-+) 37.ed5 Bd5 38.f4? (38.Rb4-+) 38...Nc6 39.f5 Ke5 40.Rd1 (40.Rg4 h5 41.Rg7 Nb8 42.cb8N Rb8 43.Re7 Kf5-+) 40...Nb8 41.cb8Q Rb8 42.Re1 Be4 43.Kf2 (43.Re2 Kf5 44.Kf2 Bd5-+) 43...Rb2 44.Kf1 Rg2 (better 44...Kf5 45.g3-+) 45.Ra1 (45.Re4 Ke4 46.Kg2 Kf5 47.Kf3-+) 45...Rh2 46.Ra5 Kf4 47.Kg1 Re2 48.Kf1 Rd2 49.Ra3 (49.Ra7 Ke3 50.Ra3 Bd3 51.Kg1 h5-+) 49...Rc2 50.Ke1 h5 51.Kd1 1-0. BeepBeepImAJeep (2740) - Nextlevel4naija (2390), lichess.org, 2020.

10.Be2 Ne4 11.0-0 Bf6 12.d4 Nd7 13.Nbd2+= Nd2 14.Qd2 c5 15.cd5 (15.Qa2 dc4 16.Rd1 Qc7 17.Qc4 b6+=) 15...ed5 16.dc5 Ba1 17.Ra1 Nc5 18.Rd1 (18.Nd4 Qd6+=) 18...Be6 19.Nd4 Ne4 20.Qc2 (20.Qb4 Qg5=) 20...Qf6= 21.Bd3 Rc8 22.Qb2 g6 (22...Bd7 23.Ra1=) 23.Be4 (23.Ra1 Nc5 24.Be2 Bf5=) 23...de4 24.Rc1 Rc1 (24...Ra8 25.h3=) 25.Qc1 Qe5 26.h3 (26.b6 Bd7=) 26...Qd5 (26...Qd6 27.Qc2 Bd5 28.Qc3=) 27.Qc7 h5 (27...Bd7 28.Qb8 Kg7 29.b6=) 28.Kh2 (better 28.Ne6!? fe6 29.Qe7+/-) 28...Bd7= Attacking the isolated pawn on b5 29.Qd8 Kg7 30.b6 Qe5 (30...g5 31.Qe7=) 31.Kg1 Be6?? (better 31...Qd6=) 32.Qc7+- Qd5 (32...Kf6 33.Ne6 Ke6 34.Qb7 Qc5+-) 33.Ne6 Qe6 34.Qb7 Qe5 35.Qc7 Qa1 36.Kh2 Qe1 37.b7 (37.b7 Qf2 38.b8Q h4 39.Qe7 Qg3 40.Qg3 hg3 41.Kg3 g5 42.Qg5 Kf8 43.Qd8 Kg7 44.Kg4 Kh7 45.Kf4 Kg6 46.Qg5 Kh7 47.Kf5 Kh8 48.Kf6 Kh7 49.Qg7) 1-0. Timmermans,M (2385) - Miszler,Levente (2265), Titled Tuesday, 2021.

9.Bc4 0-0 10.Nf3 Ne4 11.Nc3 (11.0-0 Nd6 12.d3 c6=) 11...Nc3 (11...Nd6 12.Be2=) 12.Bc3 Nd7 13.0-0 Nb6 14.Be2 Bd7 (14...Nd5 15.Qc2+=) 15.Qa1 (better 15.Qb3+=) 15...Nd5? (better 15...f6=) 16.Bg7+- Re8 17.Bb2 (17.Qd4 c6+-) 17...Bf6 (17...c6 18.Qa4 Bb4 19.Ra1+-) 18.d4 (18.Rc1 Bb2 19.Qb2 f6+-) 18...Be7 (18...c6 19.bc6 Bc6 20.Rc1+-) 19.Ne5 (19.Qa7 Bc8+-) 19...Bf6 (19...Bd6 20.Rc1+-) 20.Nd7 (20.Qc1 Be5 21.de5 Qg5+-) 20...Qd7 21.Bf3 (21.Qa7 c6+-) 21...c6 (better 21...Qb5!? 22.Rd1 c6+=) 22.bc6+- bc6 23.e4 (23.Rb1 Rb8+-) 23...Nb4 (23...Nb6 24.Rd1+-) 24.e5 (24.Qa4 Rb8 25.Bc3 Qd8+-) 24...Bg7 25.Bc3 (better 25.Qa3 Rb8 26.Be4+-) 25...Nd3? (25...Nd5 26.Rb1+-) 26.Be4 (26.Qa6!? Nf4 27.Bc6 Qc8+-) 26...Nf4 27.Qb2 (27.Rb1 Rd8+-) 27...Nd5 28.Bd2 (28.Ra1 f6+-) 28...Qe7 (28...f6!?+-) 29.Qc2 h6 (29...c5 30.Bh7 Kh8 31.dc5 Be5 32.Be4+-) 30.Qc6 Qc7 1–0. GuestLLPH – GuestPTML, freechess.org, 2016.

9.Nf3 0-0 10.Bc4 c6 11.Be2 cb5 12.Bb5 Bd7 13.Be2 Nc6 14.0-0 Qa5 15.Bc3 Qa2 16.d4 Bb4 (16...Ra8 17.Bd3=) 17.Bb4 Nb4 18.Nc3 Qc2 (better 18...Qa3!? 19.Qd2 Rc8=) 19.Qc2+/- Nc2 20.Ne5 (20.Rc1 Rc8 21.Rc2 Nd5 22.Nd5 Rc2+/-) 20...Bc6 21.Rc1 Nb4 22.Rb1 Nbd5 23.Nd5 (worse 23.Nc6 Nc3 24.Ne7 Kh8-+) 23...Bd5 24.f3 h6 (24...Rc8 25.e4 Bc6 26.Kf2+/-) 25.e4 Bc6 26.Kf2 (26.Bb5 Bb5 27.Rb5 Rd8+/-) 26...Rd8 27.Ke3 Ra8 (27...Nd7 28.Nc6 bc6 29.Rc1+/-) 28.Rb3 Ra2 29.g3 Ra1 30.h4 Rg1 31.g4 g5 32.hg5 hg5 33.Rc3 Ba4 (better 33...Be8!?+/-) 34.Rc7+- b5 (34...Be8 35.Rb7 Re1 36.Kd2+-) 35.Rf7 b4 (35...Nh7+-) 36.Rf6 b3 37.Re6 (37.Nd3!? Bb5 38.Re6 b2 39.Nb2 Be2 40.Ke2 Rg2 41.Kd3 Rb2 42.Rg6 Kh7 43.Rg5 Rb3 44.Ke2 Kh6+-) 37...b2 38.Bd3 (38.Bd3 Bb5 39.Rb6 (39.Bb5?! b1Q 40.Re8 Kg7 41.Re7 Kh6 42.Nf7 Kg6 43.Nh8 Kh6 44.Nf7 Kg6 45.Ne5 Kh6 46.Re6 Kh7 47.Re7 Kh6=) 39...Re1 40.Kf2 Bd3 41.Rb2 Rf1 42.Ke3+-) 1-0. BeepBeepImAJeep (2580) - Virgiliouno (1860), lichess.org, 2017.

9.Qc1 c6 10.Qb2 (10.Nc3 Nbd7=+) 10...Ne8 (10...Bd7 11.Nc3=+) 11.bc6 (11.Nc3 Nd7=) 11...Nc6 12.Be2 Bf6 13.Nc3 Nd6 (13...e5 14.e4 d4 15.Nd5=) 14.d4 (14.0-0 Bd7=) 14...Na5 15.Nd2 (15.0-0 Nac4 16.Qb4 Be7=+) 15...Bd7 16.0-0 Qc7 (16...Bc6 17.Rb1=+) 17.Nb5 (17.e4 Nac4 18.Nc4 Nc4= (18...dc4?? 19.e5+-)) 17...Bb5 (17...Nb5 18.Bb5 Ra8 19.Rc1=+) 18.Bb5 Rc8 (18...Nb5 19.Qb5 Be7 20.Rb1=+) 19.Bd3 b5 20.Qb1 (20.Qa2 g6=+) 20...Nac4 21.Qd1 (21.Qe1 Be7=+) 21...g6 (21...Be7 22.Re1-/+) 22.Nb3 (22.Bc3 Be7-/+) 22...Ra8 (22...Be7 23.Qe1=+) 23.Bc3=+ Kg7 (23...Be7 24.Bb4=+) 24.Qf3= Rb8 (24...Qc6 25.Qf4=+) 25.Nc5 Rc8 (25...Ra8=) 26.e4 (better 26.Ra1!?+=) 26...de4=+ 27.Ne4 (better 27.Be4!? b4 28.Bb4 Bd4 29.Nb3=+) 27...Ne4-+ 28.Qe4 Rd8 (better 28...Nd6!? 29.Qf4 Qc3 30.Qd6 b4-+ (30...Qd4?! 31.Qd4 Bd4 32.Rb1=)) 29.Rd1 (29.Rb1 Nd6 30.Qe1 Qc6=) 29...Rd5 30.Be2 (30.Ba1 b4=) 30...Qb6 (30...Nd6 31.Qd3 Nf5 32.Bf3-/+) 31.Bf3 (31.g3 Qa7=) 31...Qc7 (31...b4!? 32.Ba1 Ra5-/+) 32.Qe1 (32.g3 Rd8=) 32...Rd8 33.d5 Ne5?? (better 33...Bc3 34.Qc3 Qe5 35.Qe5 Ne5=) 34.Ba5+- Qc2 35.Bd8 Nf3 36.gf3 Bd8 37.de6 Bh4?? (better 37...Be7 38.Rd7 Qf5 39.Qc3 Qf6+-) 38.Rd7 Qc6 (38...Qc5 39.e7 Be7 40.Qe7 Qf5+-) 39.Rf7 Kh6 40.Qe3 Bg5 1–0. Beisheev,Kanat (1900) – Aldashukurov (1960), Yurtaev Memorial, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 Be7 5.a4 a6 6.e3 ab5 7.ab5 Ra1 8.Ba1 0-0)

9.Qc1 Bd6 10.Be2=+.

9.c4 b6 10.Be2 dc4 11.Bc4 Bb7 12.0-0 c5 13.d4 Nbd7 (13...Qd6 14.dc5 Qc5 15.Nbd2=) 14.Nbd2 Qa8 (14...Qc7 15.Qc2=) 15.Qb3 (15.Qe2 Rd8=) 15...Re8 (15...Rc8 16.Rd1=) 16.Bb2 (16.Bc3 Bd5=) 16...Bd6 17.Ra1 Qb8 18.h3 (18.Qd3 Rd8=) 18...Rc8 19.Rc1 cd4 20.Bd4 h6 (20...Ne5 21.Be5 Be5 22.Rd1=+) 21.Ra1 (21.Rc2 Bc5=) 21...Qc7 22.Ra7 Qb8 23.Ra1 Nc5 24.Qb2 Ncd7 25.Qa2 Bb4 (25...Qc7 26.Rc1=) 26.Qb3 Bd6 27.Rc1 (27.Rd1 Qc7=) 27...Rc7 (27...Ne5 28.Ne5 Be5 29.Qb2 Bd4 30.Qd4=) 28.Qb2 (28.Qd3 Qf8 29.e4 Bf4=) 28...Qc8 (28...Bf3 29.gf3 Ra7 30.Rd1=) 29.Rd1 (29.Qb3 Bd5=) 29...Bf3=+ 30.gf3 e5 31.Bc3 Nf8 32.Be5 (32.Kh2 Ng6 33.Qa2 e4 34.f4 Bf4 35.ef4 Nf4-/+) 32...Be5 33.Qe5 Rc5 (33...Rc4 34.Nc4 Qc4 35.Rd8=+) 34.Qe7 (34.Qf4 Ng6 35.Qh2 Rc4 36.Nc4 Qc4 37.Qb8 Kh7 38.Qb6 Qe2-/+) 34...Nd5 (34...Rc4 35.Nc4 Qc4 36.Rd8=+) 35.Qe5= Ng6 36.Qd4 (36.Qe4 Nc3 37.Qg6 Rc4=+) 36...Nc3 The isolani on b5 becomes a target (36...Qh3 37.Bd5 Nh4 38.Qg4 Qg4 39.fg4 Rd5 40.Kf1-/+) 37.Qc3 Qh3 ½–½. DEFFM – Guestxxx, freechess.org, 2018.

9.c4 b6 10.Be2 c6 11.Nc3 dc4 12.Bc4 cb5 (12...Bb7 13.0-0=) 13.Nb5+= Bb7 14.0-0 Nbd7 15.d4 Ne4 16.Qb3 Nd6 17.Nd6 Bf3?? (better 17...Bd6 18.d5 ed5 19.Bd5 Bd5 20.Qd5 Nc5=) 18.Nf7+- (18.gf3?! Bd6 19.f4 Qh4+=) 18...Qe8?? (18...Rf7 19.gf3 Nf8+-) 19.Be6 Rf7 20.gf3 Nf8 (20...Kf8 21.Bf7 Qf7 22.Qf7 Kf7 23.Bc3+-) 21.Bd5 1-0. DEFFM – GuestKXJD, freechess.org, 2021.

9.d4 c5 10.dc5 Ne4 11.Nbd2 Qa5 12.Be2 Bd7 13.0-0 Bb5 14.Bb5 Qb5 (14...Nd2!? 15.Nd2 Qb5=) 15.Ne4+= de4 16.Qd4 Bf6 (16...f6 17.Qe4 Qc6 18.Qg4 Bc5 19.Bd4=) 17.Qe4+/– Ba1 18.Ra1 (18.Ng5 g6 19.Qh4 h5 20.Ra1 Qc5+=) 18...Qc5 19.Qb7 Qc2 20.h3 Qc6 (20...Nc6 21.Ra6 Nb8 22.Rd6=) 21.Ra7+= Qb7 22.Rb7 Nc6 ½–½. Sokolski,Alexey – Geller,Efim, Soviet Union, 1957.

9.d4 c6 10.bc6 Nc6 11.Be2 b5 (11...Qc7 12.0-0=+) 12.0-0 (12.Bb5? Qa5 13.Nc3 Ne4-+) 12...Ba6 13.Nbd2 (13.Qd3 Qa5 14.Nbd2 Ra8=+) 13...Qc7 14.c3 Na5 (14...Ra8 15.Bb2=+) 15.Bb2 (15.Bd3 Nc4=+) 15...Ra8 16.Qc2 Nc4 (16...Bd6 17.Bd3=+) 17.Ra1 Bb7 (< 17...Nb2 18.Bb5 Bb4 19.Nb1=) 18.Ra8 Ba8 19.Nc4 (19.Bc4 bc4 20.Ba3 Ba3=+) 19...dc4 20.Nd2 (20.Qc1 Ng4 21.h3 Bf3 22.Bf3 Qh2 23.Kf1 Nf6=) 20...e5 (20...Bd6 21.h3=+) 21.Qf5 Qc6 22.Bf3 e4 23.Be2 Bd6 24.f3 Qe8 25.fe4 Ne4 26.Ne4 Be4 27.Qf1 Qe6 28.Bc1 Qh6 29.g3 Qg6 30.Qf2 h5 31.Bd2 h4 32.g4 h3 33.Be1 Qe6 34.Bd2 g5 35.Be1 f5 36.gf5 Bf5 37.Bd2 g4 38.Qh4 Qe4 39.Bf1 Kf7 40.Qf2 Ke7-/+ 41.d5? Qd5-+ 42.Be1 Qe4 43.Qd2 Bc5 (44.Bh4 Kf7-+) 0–1. woudstra (2740) – zoltanln (2830), net–chess.com, 2006.

9.Bd4 c5 10.bc6 Nc6 =+.

9.Be2 b6 10.0-0 Bb7 11.Bb2 Nbd7 12.d4 Ne4 13.Nbd2 Ndf6 14.c4 c6 15.Ne4 Ne4 16.Ne5 cb5 17.cb5 Qd6 18.f3 Nf6 19.Bd3 Ra8 20.Qb1 g6 21.Rc1 Rc8 (21...Nd7 22.Nc6+=) 22.Rc8 Bc8 23.Qc2 Bb7 24.Nc6 Bc6 25.bc6 Bd8 26.e4 Qc7 27.e5 Nh5 28.Bc1 Qe7 29.Qc3 Bc7 30.Ba3 Qg5 31.Bf1 Nf4 (31...Ng7!?+/-) 32.g3+- Nh5 33.Bd6 Qd8 34.Qa3 h6 (34...Qe8 35.Bb5 g5+-) 35.Bc7 Qc7 (35...Qe8 36.Qd6 Ng7 37.Bb6 Nf5+-) 36.Qd6 Qa7 37.c7 (37.c7 Qc7 38.Qc7+-) 1-0. onur604 (2320) - yurivitkin (2175), Casual Rapid game, lichess.org, 2021.

9.Be2 b6 10.0-0 Bb7 11.Ne5 Bd6 12.f4 c5 13.bc6 Nc6 14.d4 Be5 (14...Bb4 15.Bc3 Qe7 16.Bb4 Qb4 17.Bd3=) 15.de5 Ne4 16.Nd2 Nc5 17.Nb3 Nb3 18.cb3 Qa8 19.Bc3 Ba6 20.Rf2 Be2 21.Qe2 Qa3 22.Qb5?? (better 22.Qb2 Qc5 23.Bd4 Nd4 24.ed4=) 22…Qc1-+ (22...Qc1 23.Qf1 Qc3-+) 0-1. Healey,M (2140) - Muter,D (2205), 17th Nancy Blitz (10), 2019.

9.Be2 Qd6 10.0-0 Bd7 11.Be5+= Qb6 12.c4 (12.Nc3 Ne4 13.Qa1 f6=) 12...dc4 13.Bc4 Bb5 14.Bc7 Qc7 15.Bb5 Qc5 16.Qe2 Nd5 17.d4 Qb4 18.Rc1 Bf6 19.Nbd2 (19.Qf1 Rd8+=) 19...Nc3 20.Qc4 Nb5?? (better 20...Qb5 21.Qc3 Nc6+=) 21.Qb4+- (21.Qb4 Na7 22.Qb7+-) 1–0. GuestYSGM – GuestPKWG, freechess.org, 2018.

9.Be2 Qd6 10.0-0 Nbd7 11.Bb2 c5 12.c4 b6 13.cd5 Qd5 14.d3 Bb7 15.Nbd2 Qf5 16.Nc4 Ra8 17.e4 Qf4 18.Nfe5 Qh4 19.f4 Ne5 20.fe5 Nd7 21.Bh5 Rf8 22.g3 (22.g3 Qh3 23.Rf4+-) 1–0. Pcmvr (2175) – Zmaster (1955), playchess.de, 2006.

9.Be2 Qd6 10.c4 dc4 (10...Nbd7 11.Bb2 dc4 12.Ba3=) 11.Bc4= Qb4 12.Be2 Bd7 Attacking the isolated pawn on b5 13.Nc3 Rd8 (13...c6 14.Ne5=) 14.0-0 c6 15.bc6 Bc6 16.d4 Nd5 17.Nd5 Bd5 18.Ne5 Nc6 19.Nc6 Bc6 20.Bf3 e5 (better 20...Bb5 21.Be2 Ra8=) 21.d5?? (21.Bc6!? bc6 22.Qc2 ed4 23.Bd4=) 21...Bb5 (21...e4 22.Bg4-/+) 22.Re1 (better 22.Be5!? Bf1 23.Qf1=+) 22...e4-/+ 23.Be2 Be2 (23...Rd5 24.Bd4-/+) 24.Re2 (24.Qe2 Rd5 25.Bd4 Bf8-/+) 24...Rd5! 25.Qf1 (25.Qd5 Qb1 Mate attack) 25...Rb5 (25...Rd2 26.Rd2 Qd2 27.Bd4-/+) 26.g3 (better 26.Rb2 Qb2 27.Bb2 Rb2 28.Qa1=) 26...Qb1 27.Re1 Qd3 28.Qg2 (28.Bd4 Qf1 29.Kf1 f6-/+) 28...Rb1-+ 29.Rb1 Qb1 30.Qf1 Qf1 31.Kf1 f5 32.Ke2 g6 33.Kd2 (33.f3 Kf7-+) 33...Kf7 34.Bd4 Ke6 35.Kc3 Kd5 36.Kb3 b5 (36...g5 37.Kc2-+) 37.Ba7 h5 38.h4 (38.Bb6 h4-+) 38...Kc6 (better 38...g5!? 39.hg5 Bg5 40.Kb4-+) 39.Bd4 Bd8 40.Kb4 (40.Bc3 Bb6-+) 40...Bc7 (40...g5 41.hg5 Bg5 42.Bc3-+) 41.Bf6 Bd6 42.Kb3 Bc5 43.Bd8? (43.Kc3 Kd5-+) 43...Kd5 (better 43...Bb6!? 44.Bf6 Ba5 45.Be5-+) 44.Bf6 Bb6 45.Bc3? (45.Kb4 Kc6-+) 45...Kc6 (45...f4 46.Bd2-+) 46.Be5? (better 46.Kc2-+) 46...Ba5 47.Bd4 (47.Kc2 Be1-+) 47...Be1 48.f3 (48.Be5-+) 48…Bg3 (48...Bg3 49.fe4 Bh4 50.ef5 gf5-+) 0-1. KLINGON09 (1880) - EvgenyGu (1920), lichess.org, 2020.

9.Be2 Qd6 10.Be5 Qb6 11.Bd4 Qa5 12.0-0 Nbd7 13.Bc3 Qa4 14.Ne5 Ne4 15.Bd4 Bb4 (15...f6 16.Nd7 Bd7 17.d3=+) 16.d3 Nd6 17.Nd7 Bd7 18.c3 Qd1 19.Rd1 (worse 19.Bd1 Ba5=+) 19...Ba5 20.c4 Ra8 21.Bf3 Rd8 22.Na3 (worse 22.cd5 Nb5 23.de6 Nd4 24.ef7 Kf7 25.ed4 Ba4=+) 22...Nf5 23.Bb2 Nh4 24.Be2 Ra8 25.Nc2 Rf8 (25...c6!?+=) 26.Ra1+- Bb6 27.Bd4 Bd4 28.ed4 Ng6 29.Ra7 Rb8 30.Bf3 Ne7 31.Ra5 Kf8 32.Kf1 Nc8 33.Ke2 Nd6 34.Ne3 Re8 35.Ra7 Rb8 36.Kd2 Be8 37.Ra5 f5 38.Kc3 f4 39.Ng4 Kg8 (39...Bh5 40.Ne5 Bf3 41.Nd7 (41.gf3?! Ke7=; worse 41.Nf3 dc4 42.dc4 Ne4 43.Kb3 Nf2+=) 41...Ke7 42.Nb8 Bg2 43.c5+-) 40.Ne5 h5 41.h3 Rd8 42.g3 Nc8 (better 42...dc4!? 43.dc4 Nf5+-) 43.Ra8+- fg3 44.fg3 c6? (44...Kh7+-) 45.b6! h4 (45...Nb6 46.Rd8 Pinning (46.Rd8 Deflection)) 46.Bg4 hg3 (46...Bf7 47.Nc6! Re8 48.Rc8 Rc8 49.Ne7 Kf8 50.Nc8 hg3 51.Bf3+-) 47.Be6 Kf8 48.Bc8 (worse 48.Rc8 Rc8 49.Bc8 Bh5+-) 48...g2 49.Nf3 Ke7 50.Bb7 dc4 51.Rd8 Kd8 52.dc4 Ke7 (52...Kd7 53.Kb4 Bg6 54.d5 cd5 55.Bd5+-) 53.c5 Kd8 54.d5 cd5 55.Bd5 Bb5 56.c6 Ba4 (56...g6+-) 57.Ng1 (57.Ng1 Bc6 58.Bc6+-) 1–0. b4_player (2230) – THE_MONK (2025), GameColony.com, 2003.

9.Be2 Bd6 =.

9.Be2 Bd7 10.0-0 c5 11.c4 Qb6 12.Ne5 (12.Nc3 Bc8+-) 12...Ne4 (12...Bc8!?=) 13.d3 Nf6 14.Nc3 (14.Nd2+-) 14...d4 (better 14...Be8!?+=) 15.ed4+- cd4 16.Na4 Qd6 17.f4 Bc8 18.c5 Qd8 19.Qb3 Nbd7 20.c6 (20.Qc4!?+-) 20...Ne5+- 21.fe5 Nd5 22.Bd4 b6?? (better 22...bc6 23.bc6 Qc7+-) 23.Bf3+- Bc5 (23...Bb4 24.Bd5 Ba5 25.c7 Qd5 26.Qd5 ed5 27.Bb6+-) 24.Nc5 bc5 (24...Nf4 25.Qc4 bc5 26.Bc5+-) 25.Bc5 Re8 26.b6 Ba6 (26...Bb7 27.cb7 Qd7 28.Ra1 Qb7 29.d4+-) 27.b7 Qc7 (27...Nc7 28.Be4 Bb5 29.Bd6+-) 28.Bd5 ed5 29.Qd5 (29.Qd5 Bb7 30.cb7+-) 1–0. DEFFM – GuestFZNK, freechess.org, 2019.

9.Be2 Bd7 10.0-0 c6 11.Nc3 Qb6 12.Ne5 cb5 13.Nd7 Nbd7 14.Nb5 Ra8 15.Bd4 (15.c4 Ra2+=) 15...Qd8 (15...Qc6 16.f3=) 16.Bd3 (16.c4 dc4 17.Bc4 Bc5+=) 16...Nc5= 17.Be2 Na4 (17...Ncd7 18.c4+=) 18.f4 (18.c4 dc4 19.Bc4 Nb6+=) 18...Ne4 19.d3 Nec5 (19...Nd6 20.Nd6 Bd6 21.Qb1=) 20.Qd2+= Qb6 21.Rb1 Ra5 (21...Qa5 22.Qa5 Ra5 23.Bf3+-) 22.Nc3 (better 22.c4+-) 22...Nb2?? (better 22...Qa7+=) 23.Nd1+- Ra2 24.Rb2 Rb2 25.Nb2 e5 (25...Bf6 26.Bf6 gf6 27.Nd1+-) 26.fe5 1–0. GuestYGNN – GuestGHYT, freechess.org, 2019.

9.Be2 Bd7 10.0-0 Qe8 11.Nc3 Ne4 12.Ne4 de4 13.Nd4 e5 14.Nb3 Bd6 15.c4 b6 16.Qc2 Bf5 (better 16...c6+=) 17.f3 (better 17.c5 bc5 18.Nc5 Bc5 19.Qc5+/-) 17...ef3=+ 18.Bf3?? (better 18.Qf5 fe2 19.Rb1=+) 18...Bc2-+ 19.Nc1 e4 (19...e4 20.Be2 Bb4-+) 0-1. Mely (2835) - aljanter (2145), ChessWorld.net, 2012.

9.Be2 Qe8 10.c4 dc4 11.Bc4 Bd7 12.Nc3 Bb4 13.Qb3 Ba5 (13...Qe7 14.0-0=) 14.Bb2+= Qc8 (14...Qd8 15.0-0+=) 15.0-0 b6 (15...c6 16.Rc1+=) 16.Ba3 (16.d4 Rd8+-) 16...Re8+= 17.Ne5 (17.Rc1 Qd8+=) 17...Qb7 (17...c5 18.Rc1+=) 18.Be2 (18.d4 Rc8+=) 18...c6 (18...c5 19.bc6 Bc6 20.Nc6 Nc6 21.Rc1 Bc3 22.Qc3+=) 19.Bf3 (19.Nc4 Qa8+-) 19...Qc7 20.d4 cb5 (20...c5 21.Rc1 cd4 22.ed4+=) 21.Nb5+- Bb5 22.Qb5 (better 22.Rc1 Bc6 23.Nc6 Nc6 24.Rc6+-) 22...Nbd7?? (better 22...Rc8+=) 23.Rc1+- Qa7 (23...Nc5+-) 24.Nc6 Qb7 (24...Qa8 25.Ne7 Kh8 26.Ba8 Ra8 27.e4+-) 25.Ne7 (25.Ne7 Re7 26.Bb7+-) 1–0. DEFFM – abadjm, freechess.org, 2018.

9.Ne5 Nbd7 10.d4 Ne4 11.f3 Nd6 12.Bd3 f6 13.Ng4 c6 14.0-0 (14.bc6 bc6 15.0-0 c5=+) 14...Qb6 (14...Nb5 15.c4 Nc7 16.c5=+) 15.f4 (15.bc6 bc6 16.Nd2 Ba6=) 15...f5 (15...c5 16.dc5 Nc5 17.Nc3-/+) 16.Ne5 (16.bc6 Qc6 17.Ne5 Ne5 18.fe5 Nc4=+) 16...Nb5 17.Nc3 (17.c4 dc4 18.Nc4 Qa6=+) 17...Nc3-/+ 18.Bc3 Ne5 19.fe5 Bd7 20.Qh5 Be8 21.Qh3 c5 22.Be2 (22.Ra1 Bg6-/+) 22...Bg6 (22...Ba4 23.Bd1-+) 23.Qg3 (23.Ra1 f4 24.Bd3 Bd3 25.cd3 fe3 26.Qe3 Qb3-+) 23...Qd8 24.Rb1 Qc7 25.Qe1 b6 26.Qc1 cd4 27.Bd4 Bc5 28.Qb2 f4-+ 29.Bd3? Bd3 30.cd3 fe3 31.Bc5 bc5 32.Rf1 Rf1 33.Kf1 d4 34.Qa2 Qe5 35.Qa8 Kf7 36.Kg1 Qf5 37.Qb7 Kg6 38.Qb1 Qf2 39.Kh1 0–1. Stefanova,Milena (2035) – Tsvetkova,Svetlana (1980), Pleven BUL, Women Ch (qualifier), 2006.

10.Bc4 c6 11.0-0 cb5 12.Bb5 Nc6 (12...Bd7 13.Be2=) 13.Qc2 (13.Bf6 Bf6 14.d4 Bd7+=) 13...Bd7 (13...Nb4 14.Qa4=) 14.Qb2 (14.Bf6 Bf6 15.d4 Qa5=) 14...Qb8 (14...Nb4 15.Be2=) 15.Nc3 (15.d3=) 15...Ne5 (15...e5!?=) 16.Ne5+/– Qe5 17.Bd7 Nd7 18.f4 (better is 18.Qb7 Rd8 19.Ne4+/–) 18...Qc7?? (better is 18...Qb8+=) 19.Nb5 Bf6 20.Nc7 (20...Bb2 21.Bb2+-) 1–0. AbstractPoetic – Rajko, internet, 2007.

10.Bc4 c6 11.Nc3 Bb4 12.0-0 Bc3 (12...Bd7 13.Qb3 Qe7 14.d3=) 13.Bc3+= cb5 (13...Bd7 14.Qb1+=) 14.Bb5 Bd7 (14...Nd5 15.Be5 Bd7 16.Bd3+=) 15.Qb1 Nc6 (15...Bc6!? 16.Bc6 bc6+-) 16.Bd3+- h6 17.Qb7 Nd5 (17...Qb8 18.Rb1 Qd6 19.Qa6+-) 18.Ra1 (18.Rb1 Qe8+-) 18...Nc3 (18...Qc8 19.Rb1+-) 19.dc3+- Qc8 (19...Bc8 20.Qb5+-) 20.Rb1 (20.Qc8 Rc8 21.Rd1 Kf8+-) 20...Rd8 21.Qb6 (21.h3 Ne7 22.c4 Qc5+-) 21...Be8 (21...e5 22.Be4+-) 22.Nd4+- Ne7 23.Ba6 Nd5 24.Qa5 (24.Bc8 Nb6 25.Bb7 Na4+-) 24...Qc7 25.Qc7 Nc7 26.Bc4 Nd5 27.Bd5 Rd5 (27...ed5 28.Kf1+-) 28.c4 (28.f4 Rc5 29.Rb3 Kf8+-) 28...Rc5 29.Rb4 Kf8 (29...e5 30.Nf5 Bc6 31.f3+-) 30.f4 Ke7 (30...Bc6 31.Nb3 Rh5 32.Rb6+-) 31.Kf2 (31.e4 Bd7+-) 31...Kd6 (31...Bc6 32.Nc6 Rc6 33.e4+-) 32.Nb3 (32.e4 Ra5 33.Rb8 Ra2 34.Kf3 Ba4 35.Nb5 Bb5 36.cb5 Kc5+-) 32...Rc7 (32...Rh5 33.h3+-) 33.c5 (33.e4 Bc6+-) 33...Ke7+- 34.g4 (34.e4 f5+-) 34...f6 35.Rb6 (35.Rc4!?+-) 35...e5+= 36.Ke2 Bf7 37.Kd3 Bb3 38.Rb3 Rc5 39.Rb7 Kf8 40.h3 (40.Ke4 ef4 41.ef4 g6+=) 40...ef4 41.ef4 Ra5 42.Ke4 g6 43.h4 (43.Rh7 Ra4 44.Kf3 Ra3 45.Kg2 Ra2 46.Kg3 Ra3 47.Kh2 Rf3=) 43...Ra4 44.Kf3 Ra3 45.Ke4 Ra5 46.Rb8 (46.Rd7 h5 47.g5 Ra4 48.Rd4 Rd4 49.Kd4 Kf7=) 46...Ke7 47.Rb7 Kf8 48.Rb4 (48.Rb6 Ke7=) 48...Kf7 (48...f5 49.gf5 Rf5 50.Kf3=) 49.f5 gf5 50.gf5 h5 51.Rb7 Kf8 (51...Ke8 52.Rc7=) 52.Rh7 (52.Rc7 Ke8=) 52...Ra4 53.Kd5 Ra2 (better 53...Ra5!? 54.Ke6 Ra6 55.Kd5 Ra5 56.Ke4 Ra4 57.Kd5 Ra5=) 54.Rh5+- Kg7 55.Kd6 (55.Ke4 Ra4 56.Ke3 Ra1+-) 55...Ra4 (better 55...Rc2+-) 56.Kd5 Ra3 (56...Ra2 57.Ke4+-) 57.Kd6 (57.Ke4 Ra4 58.Ke3 Ra3 59.Ke2 Rc3+=) 57...Ra6 (57...Ra4 58.Kc5 Ra1+-) 58.Kc5+- Ra4 59.Kd5 Ra5 (better 59...Ra2!?=) 60.Ke4 Ra4 61.Ke3 Ra3 62.Ke4 (62.Kd4 Ra4 63.Kd3 Ra1+-) 62...Ra4 63.Kf3 (63.Kd3!?+-) 63...Ra3 64.Kf4 (64.Ke2 Rb3+-) 64...Ra4= 65.Kf3 Ra3 66.Kf4 (66.Ke2!?+=) 66...Ra4= 67.Kg3 Ra3 (67...Ra2 68.Kh3=) 68.Kf2+= Ra4 (68...Ra2 69.Kf1+=) 69.Ke2+- Rg4 70.Kf3 (better 70.Kd3!?+-) 70...Ra4= 71.Kf2 Ra3 (71...Re4!?=) 72.Ke2+= Ra4 (72...Rb3 73.Kd2+-) 73.Kd3+- Ra3 (73...Ra1 74.Kc4+-) 74.Kd4 Ra4 75.Kc5 Ra3 76.Kd6 (76.Kc4 Ra1+-) 76...Ra6+= 77.Kd5 Ra5 78.Kc6 Ra6 79.Kc5 Ra5 (79...Ra3!?=) 80.Kb6 (better 80.Kb4!? Ra1 81.Kb3+-) 80...Ra4 81.Kb5 Ra3 (81...Ra1 82.Kc4 Ra4 83.Kb3+=) 82.Kc5 Ra6 (82...Ra5 83.Kb4 Re5 84.Kc3 Rc5 85.Kd3+-) 83.Kb5 (83.Kb4 Rb6 84.Kc4 Rc6 85.Kb5 Rc1+-) 83...Ra3 84.Kb4 (84.Kc4 Re3 85.Kb4 Rg3+=) 84...Rf3 85.Kc5 Ra3 86.Kb4 (86.Kb5 Rb3 87.Kc6 Rc3 88.Kd7 Re3=) 86...Ra6 87.Kc4 Ra5 88.Kd3 Ra4 89.Ke3 Ra3 90.Kd2 Ra4 91.Kc3 (91.Kc2 Ra1=) 91...Rg4 92.Kd3 Ra4 93.Kd2 Ra2 94.Kd1 Ra1 95.Kc2 Ra4 96.Kb3 Rf4 97.Ka3 Kg8 98.Kb3 Kf8 (98...Kg7 99.Kb2=) 99.Rh8 (99.Rh7 Rf5 100.Kc2 Kg8=) 99...Ke7 (99...Kg7 100.Rc8=) 100.h5 (100.Rh7 Kd6=) 100...Rf5 (100...Kf7 101.Rh7 Kg8 102.Rd7=) 101.Rh7 Ke6 102.Kc4 Rf3 103.Rb7 Rh3 104.Rh7 Kf5 105.Kd4 Kg5 Exerts pressure on the isolated pawn 106.Ke4 Rh4 107.Ke3 Rh5 108.Rh5 Kh5 109.Kf4 Kg6 110.Kg4 f5 111.Kf4 Kf6 112.Ke3 Ke5 113.Kf3 f4 114.Ke2 Kf5 115.Kf3 Kg5 116.Kg2 Kf6 117.Kg1 f3 118.Kf1 f2 119.Kf2 ½–½. DEFFM – GuestBJYN, freechess.org, 2018.

10.Bc4 Nd5 11.0-0 Nd7 12.Nc3 N7b6 13.Nd5 Nc4 14.Ne7 Qe7 15.Qb3 Nd6 16.Rc1 Bd7 Attacks the isolani on b5 (16...f6 17.d3+=) 17.Rc7+/– Nb5?? (better is 17...Qd8 18.Rc5 b6+=) 18.Qb5!! Qa3 (18...Bb5 19.Re7 Pinning (19.Re7 Deflection)) 19.Qb1 Bc6 (19...Rc8 20.Bb2 Qa4 21.Rb7+-) 20.Ng5 g6 21.Be5 Qa5 22.d4 Qd5 23.f3 h6 (23...Qa5+-) 24.Rf7! Rf7 (24...Rf7 25.Qg6 Mate attack) 25.Qg6 Kf8 (25...Rg7 26.Qg7) 26.Qf7 1–0. Janek – Kevin, internet free game, 2016.

10.Bc4 Bd6 11.0-0 =.

10.Bc4 Nbd7 11.0-0 Nb6 12.Be2 Nfd5 13.Qb3 Bf6 14.d4 Bd7 15.Nbd2 Qa8 (15...Be7 16.Bb2+=) 16.Ne4 (16.Bb2!?+-) 16...Qa4+= 17.Nf6 Nf6 (17...gf6 18.Qa4 Na4 19.Rc1+=) 18.Qa4+- Na4 19.Ne5 (19.Rc1 Rc8+-) 19...Bc8 (better 19...Nb6!?+=) 20.Rc1+- Nd7? (better 20...Ne8+-) 21.Nd7+- Bd7 22.Rc7 Bc8 23.Bf3 Nb6 24.Bb7 Bb7 25.Rb7 Nd5 (25...Ra8 26.Bc3 Nd5 27.Be1+-) 26.e4 Nb4 (26...Ra8 27.Bb2 Nf6 28.b6+-) 27.b6 Rc8 (27...f6 28.Bc3 Na6 29.Ra7+-) 28.Rc7 Rb8 (28...Ra8 29.Bc3 Na6+-) 29.b7 (29.b7 Rf8 30.Rc8+-) 1–0. DEFFM – GuestSXRX, freechess.org, 2019.

10.Qa4 Nbd7 11.Be2 Nb6 12.Qa2 Nc4 13.Bc4 dc4 14.Qc4 b6 15.d4 Bb7 16.dc5 bc5 17.Nbd2 Bd5 18.Qc3 (18.Qe2 Bf3 19.gf3 Qa5 20.Bf6 Bf6-/+) 18...Qb6 (18...Qd7!? 19.e4 Ba8-/+) 19.e4+= Ba8 20.Qc4 Rb8 21.Be5 Rc8 22.0-0 Nd7 23.Bd4?? (better is 23.Bb2+=) 23...Rb8-/+ 24.Ne5 Nf6 (better is 24...Qb5 25.Nd7 Qd7-/+) 25.Nc6?? The isolani on c5 becomes a target (better is 25.Be3 Qb5 26.f3+=) 25...Bc6-+ (25...cd4?! 26.Ne7 Kf8 27.Nc6 Bc6 28.bc6=) 26.bc6 cd4 27.c7 (27.h3 Rc8 28.Rc1 Bd6-+) 27...Rc8 0–1. Schroeder,Ralf (1670) – Federau,J (2120), Lichtenberger Sommer, 2015.

10.Qb3 b6 11.d3 Nbd7 =.

10.Qb3 b6 11.Be2 Bb7 12.d3 d4 (12...Nbd7 13.0-0=) 13.0-0 (13.ed4 cd4 14.Qb2 Bc5=) 13...de3 14.fe3 Nbd7 15.Nbd2 Qc7 16.e4 (16.Qc3 Rd8=) 16...e5 (16...Ng4 17.h3 Ne3 18.Rf2=+) 17.Qc3 Bd6 (17...Ra8 18.Bb2=) 18.Nh4 Re8 (18...Ra8 19.Nf5=) 19.Nf5+= Nf8 (19...Ra8 20.Bb2=) 20.Nd6 (20.Bb2!?+=) 20...Qd6= 21.Nf3 (21.Bb2 Ng6=) 21...Ng6 22.Qe1 (22.Bd1 Bc8=) 22...Nd7 (22...Nf4 23.Ne5 Ne2 24.Qe2 Re5 25.Be5 Qe5 26.Qf2=+) 23.Nh4= Ndf8 (23...Nh4 24.Qh4 Ra8 25.Bc3=) 24.Qg3 (24.Nf5 Qc7+=) 24...f6 (24...Nh4 25.Qh4 Ng6 26.Qg4=) 25.Nf5+= Qd8 (25...Qd7 26.Qe3=) 26.h4 Ne6= 27.Bh5 Nef4-/+ 28.Bf3 Bc8 29.h5 Bf5 30.ef5 Qd3 31.Bd5 Qd5! 32.Qg6 hg6 33.cd5 gh5 34.Rd1 Rd8 35.Kf2 Rd5 36.Rd5 Nd5 37.Kf3 Nc7 38.Ke4 Nb5 39.Kd5 Nd4 40.Bc3 Nf5 41.Kc6 e4 42.Kb6 Nh4 43.Kc5 Ng2 44.Kd4 e3 45.Kd3 h4 46.Ke2 h3 47.Kf3 f5 48.Kg3 e2 (49.Kh3 e1Q 50.Be1 Ne1-+; better is 48...Nf4! 49.Kh2-+) 0–1. Holz auf der Heide – Resnjanskij, Leipzig, 1996.

10.Be2 dc4 11.Bc4 Nbd7 =.

10.Qa4 dc4 11.Bc4 Nd5 12.Qa7 Nd7 13.bc6 bc6 14.0-0 Bc5 15.Qa2 Be7 16.Nc3 Bf6 17.Rc1 Nc3 18.Bc3 Bc3 19.Rc3 Qf6 20.Be2 e5 21.d4 ed4 22.Nd4 c6 gets attention 22...c5 23.Nb5 Bb7 24.Rc1 Qg6 25.Bf1 Rc8 26.Qd2 Bc6 27.Na7 Ra8 28.Nc6 Qc6 29.Qc3 g6 30.g3 Rc8 31.Bh3 Rc7 32.Rd1 Nf8 33.Rd8 Rb7 34.Qc1 Rc7 35.Qc3 Rb7 36.Rd1 Qb6 37.Bg2 Rc7 38.Bd5 1–0. Krafzik,Joachim (1835) – Wojtkowiak,Horst (1675), GER–ch Seniors–A, 2008.

10.Nc3 Qa5 11.Qa4 Qc7=.

10.Nc3 Qa5 11.Qb1 Nbd7 (11...Rd8 12.cd5 ed5 13.Bd3=) 12.Be2 Nb6 13.bc6 bc6 14.Nd4 (14.Ne5 Bb7=) 14...Bd7=+ (14...dc4?? 15.Nc6 Qa3 16.Ne7 Qe7 17.Qb6+-) 15.Nb3 Qa7 16.cd5 cd5 17.0-0 Rc8 18.h3 Nc4 19.d3 Nd6 20.Rc1 Rb8 (20...Nf5 21.Nd1=+) 21.Bd1 (21.Qc2 Nf5 22.d4 Bd6=) 21...Nf5 (21...d4 22.Qa2 Qa2 23.Na2 de3 24.fe3=+) 22.Ne2 Ne8 23.e4 (White launches an attack) 23...de4 (23...Nfd6 24.ed5 ed5 25.Bd4=) 24.de4 Nh4 25.Bd4 Qa3 26.Qd3 Bb5 27.Qg3 Be2?? (better is 27...Rd8 28.Rb1 Qd6+=) 28.Qb8+- Kf8 (28...Bb5 29.Qb5 Qa8+-) 29.Rc8 Qa4 30.Re8! Qe8 31.Bg7! (31...Kg7 32.Qe8 Nf3 33.gf3 Bd1 34.Qe7 Bb3 35.Qg5 Kf8 36.Qc5 Kg8 37.Qc8 Kg7 38.Qc3 Kf8 39.Qb3+-) 1–0. Papapostolou,Christos – Fassmann,Kurt, 3sen.WttgEM/Ellwangen, 1991.

10.Nc3 Qa5 11.Be2 cb5 12.cb5 Nbd7 13.0-0 b6 14.Nd4 Bb7 15.Nc6 Bc6 16.bc6 Ne5 17.Bb5 Bb4 (17...Rc8!? 18.Qa4 Qa4 19.Na4 Nc6=+) 18.Qe2+= Ra8 (18...Bd6 19.f4 Ng6 20.Bb2+=) 19.Bb2+- Rc8? (better 19...Nc4 20.Bc4 dc4 21.Qc4 Be7+-) 20.Ra1+- Ba3 (20...Nc6 21.Ra5 ba5 22.Na2+-) 21.Ra3 Qb4 22.d4 Nc4 23.Bc4 dc4 24.Ra4 Qb3 (24...Qd6 25.Qf3 b5 26.Nb5+-) 25.Rc4 (25.Qc4?! Qb2 26.h3 Ne8+-) 25...b5 26.Rc5 b4 27.Nb5 White prepares c7 27...Nd5 28.g3 g6 (28...Qa2 29.Nd6 Rc7 30.Qb5+-) 29.c7 (29.e4 Nb6+-) 29...Ra8 (29...Qa2+-) 30.c8Q (30.c8Q Rc8 31.Rc8 Kg7 32.e4+-) 1–0. DEFFM – SRBVxx, freechess.org, 2018.

10.Nc3 Qa5 11.Be2 dc4 12.bc6 (12.Bc4 Bd7 13.Qb1 cb5 14.Bb5 Bc6=) 12...b5+= 13.Ne5 (13.Nd4!? b4 14.Ncb5+=) 13...Ba6-/+ 14.f4 (14.Bf3 Bd6 15.d4 Nd5 16.Bd5 ed5-+) 14...b4 15.Qa4 (15.0-0 bc3 16.Bc3 Qc5-+) 15...Qb6 (15...Qc5 16.Nd1 Bb5 17.Qc2 Nc6 18.Nc4-+) 16.Nd1-/+ (16.Bc4? bc3 17.Ke2 Bc4 18.Qc4 Rc8-+) 16...Bb5 17.Qc2 (17.Bd4 Ba4 (worse is 17...Nc6 18.Bb6 Ba4 19.Nb2 Ne5 20.fe5+=) 18.Bb6 Bc6-/+ (18...Nc6?! 19.Nb2 Ne5 20.fe5+=)) 17...Nc6-+ 18.Bc4 Bc4 (18...Ne5 19.fe5 Nd7 20.Bb5 Qb5 21.d4-+) 19.Qc4-/+ Na5 (19...Rc8 20.0-0-/+) 20.Qe2 (20.Qd3 Ra8-/+) 20...Nb3 (20...Qc7 21.Qd3-/+) 21.Bb2 Rd8 (21...Qc7 22.Qc4 Qc4 23.Nc4+=) 22.d3 (22.d4 Nd5-/+) 22...Rc8 (22...Nc5 23.0-0-/+) 23.0-0+= Qb5 24.Nc4 Qa6 (24...Ne4 25.Nf2 Nf2 26.Kf2+=) 25.Nf2+= Qc6 (25...Qa2 26.Re1+=) 26.Rb1 Nc5+= 27.Be5 Nd3 28.Qd3 Qc4 29.Qc4 Rc4 30.Nd3 h5 31.Kf2? Ng4-+ 32.Kg3 Ne3 33.Kf3 Nd5 34.g3 f6 35.Ba1 Rc2 36.h3 Kf7 37.g4 h4 38.Bd4 Nc3 39.Rb3?! Ne2 40.Ba1?? Nd4 41.Bd4+/– Rh2 42.Ke4 Rh3= 43.Ne5 fe5 44.Rh3 ed4 45.g5 Bd6 46.Rh4+= Kg6 47.Rh8 Kf7 48.Rh1 Kg6 49.Rh3 Kf7 50.Rd3 Bc5 51.Ke5 Ke7 52.Ke4 Kd6 53.Rb3 Ke7 54.Ke5 Kf7 55.Rh3+= Ke7 56.Rd3 ½–½. Krebbers,Wilfried (1935) – Sailor,Douglas (2220), Goch op, 2004.

10.Nc3 cb5 11.cb5 Nbd7 12.Be2 Nb6 13.0-0 Qd6 14.Qb3 Bd7 (14...e5 15.Na4 Nbd7 16.Rc1=) 15.Na4 Na4 16.Qa4 Ne4 17.d3 (17.Qa7 Qb8 18.b6 Qc8=) 17...Nc5 18.Qb4 f6 19.Rc1 b6 20.Bb2 Ra8 21.Ba3? (21.Ra1!? Ra1 22.Ba1=) 21...Bf8 (21...Nd3 22.Bd3 Qb4 23.Bb4 Bb4 24.Nd4-/+) 22.h3 (22.Qb2 Nd3 23.Bd3 Ra3-/+) 22...Qb8 23.d4 (23.Rc2-/+) 23...Ne4 (23...Nd3 24.Qb1 Nc1 (24...Ra3?! 25.Bd3 g6 26.Qc2=; 24...Ba3?! 25.Bd3 Bc1 26.Qc1-+) 25.Bc1 Qa7-+) 24.Qf8= Qf8 25.Bf8 Kf8 26.Rc7 Ke8 27.Rb7 Nc3 Exerts pressure on the isolated pawn (better 27...Ra1!? 28.Kh2 Nf2=+) 28.Bd3+= Nb5 (28...g6 29.Rb6 Ke7 30.g4 Ra1 31.Kg2+/-) 29.Rb6 Nc7 (29...Nc3!?+=) 30.Bh7+/- Ra1 31.Kh2 Ra2 32.Kg3 Kd8 33.Bb1 Ra1 34.Bd3 Ra3 35.Bb1 Nb5 (35...Ra1 36.Rb8 Ke7+/-) 36.Rb8+/- Kc7 37.Rg8 g5 38.Bh7 Nc3 39.Rf8 f5 (39...Ne4 40.Be4 de4 41.Nd2+-) 40.Ng5 Ne2 41.Kh2 Kd6 (better 41...f4+-) 42.Nf7?? (better 42.Bg8 Nc3 43.g4+-) 42...Ke7+= 43.Rd8 Kf7? (better 43...Be8 44.Re8 Ke8+=) 44.Rd7+- Kf6 45.Bg8 (45.g4 fg4 46.hg4 Kg5+-) 45...Ra6 (45...f4 46.Rf7 Kg6+-) 46.Rf7 Kg6 47.h4?? (better 47.Rc7 Kf6 48.Bf7+-) 47...Ra8+/- 48.Re7 Rg8 49.Re6 Kh5 50.g3 Nc3 (better 50...Kg4!? 51.Kg2 f4 52.f3 Kf5 53.Re5 Kf6 54.ef4 Nd4 55.Rd5 Nf5+/-) 51.Rf6+- Kg4 52.Kg2 f4 (52...Kh5 53.Rf5 Kh6 54.h5+-) 53.Rf4 Kh5 54.Rf5 (better 54.Rf6 Nd1 55.Rf5 Kh6 56.Rd5+-) 54...Kg6? (better 54...Kh6+-) 55.Rg5 Kf7 56.Rg8 Kg8 57.g4 Kg7 58.Kg3 Kf6 59.f3 Ne2 (59...Ke6 60.h5+-) 60.Kf2 Nc1 61.h5 (61.e4 Nd3 62.Kg3 Nc1 63.g5 Ke6 64.ed5 Kf5+-) 61...Kg5 (61...Nb3 62.Ke2+-) 62.f4 Kh6 63.Kg3 (better 63.e4 de4 64.Ke3 Nb3+-) 63...Ne2 64.Kh4 (64.Kh4 Kh7 65.f5+-) 1-0. Osmak,Iulija (2425) - Badelka,Olga (2425), 1st FIDE World Uni Women, 2021.

10.Nc3 dc4 11.Bc4 cb5 12.Nb5 Qb6 13.Qb1 Nc6 14.0-0 Rd8 15.Rc1 h6 16.Ne5 (better 16.Be2+=) 16...Rd2?? (better 16...Ne5 17.Be5 Rd2=) 17.Nf7!+- Kf7? (17...Bd7+-) 18.Nd6!! Bd6 (18...Rd6 19.Qb6 Discovered attack; 18...Bd6 19.Qb6 Discovered attack) 19.Qb6 Ne4 20.f3 (better 20.Qb5 Ba3 21.Qh5 g6 22.Qf3 Ke8 23.Rb1+-) 20...Bc5 (20...Nf6+-) 21.Qc7 Ne7 (21...Rd7 22.Qc8 Be3 23.Kf1 Re7+-) 22.fe4 Be3 23.Kh1 Rd7 24.Rf1 Kg6 25.Qg3 Bg5 26.Qe5 Bf6 (26...Rd3 27.g4 Rd4 28.Bd4 Nf5 29.ef5 Kf7 30.Qg7 Ke8 31.Bb5 Bd7 32.Qd7 Kf8 33.Qg7) 27.Rf6 gf6 (27...Kh7 28.Rh6! Kh6 29.Qg7 Kh5 30.Be2 Kh4 31.Bf6) 28.Qf6 Kh5 29.Be2 1–0. DEFFM – GuestSYBV, freechess.org, 2019.

10.Nc3 Nbd7 11.Be2 Nb6 12.cd5 Nbd5 (12...ed5 13.bc6 bc6 14.0-0=) 13.Nd5 cd5 14.0-0 Qa5 (14...Bd7 15.Qc2=) 15.Qc2 (15.Bc3 Qd8+=) 15...Bd7= Attacking the isolated pawn on b5 16.Bc3 Qc7 17.Qb2 Rc8 18.Ne5 (18.Ra1 b6+=) 18...Be8= 19.b6 Qd6 20.Nf3 (20.Nd3 Bd8+=) 20...h6 (20...Nd7!?=) 21.Ra1+= Bc6 22.Ra7 Qd8 23.Bd4 Ra8 (23...Bd6 24.Ne5+=) 24.Ne5+- Ne8?? (better 24...Rb8+-) 25.Nc6+- bc6 26.Ra8 Qa8 27.b7 Qb8 28.Ba7!! Bf6 (28...Qa7 29.b8Q Double attack (29.b8Q Decoy)) 29.Bb8 Bb2 30.Bg3 Be5 (30...Bf6+-) 31.Be5 f6 (31...Nc7 32.b8Q Kh7 33.Bd3 f5 34.Qc7 Kg6 35.Qg7 Kh5 36.Be2 Kh4 37.Qh6) 32.b8Q Kf7 33.Bh5 g6 34.Qa7 (34.Qb7 Kg8 35.Bg6 Nc7 36.Bf6 e5 37.Qc7 c5 38.Qf7) 34...Kf8 (34...Kg8 35.Bg6 Nc7 36.Bf6 e5 37.Qb8 Ne8 38.Qe8) 35.Bg6 Nd6 (35...Nc7 36.Bf6 e5 37.Qb8 Ne8 38.Qe8) 36.Bd6 Kg8 37.Qh7 1–0. onur604 (2320) – Djanysh_25 (2055), lichess.org, 2020.

10.Nc3 Nbd7 11.Be2 Qc7 12.0-0 h6 (12...e5 13.Qc2=) 13.d4 dc4 14.Bc4 Nd5 (14...c5 15.Qe2=) 15.Qb3 (15.bc6 bc6 16.Qb3 N7b6+=) 15...N7f6 (15...N7b6 16.Bd3+=) 16.Ne5 (16.bc6 bc6 17.Rc1 Rd8+=) 16...Nc3 (16...Bd7 17.Rc1+=) 17.b6 (17.Bc3 Nd7+=) 17...Qd8 18.Bc3 (18.Qc3?! Qb6 19.Qc2 Rd8=) 18...Nd5 19.Ba5 Bd6 20.Nf3 (20.e4 Nf4+=) 20...Qf6 21.e4 Nf4 22.e5 (22.Bd2 Qg6 23.g3 Qg4+=) 22...Qg6 23.Ne1 Be7 24.g3 (24.Bd2 Nd5+=) 24...Nh3 (24...Rd8 25.Bd2 Nd5 26.Nc2=) 25.Kh1 Qe4 (25...Rd8 26.Qe3=) 26.f3 Qd4 27.Bc3 Qe3 (better 27...Qd7!?=) 28.Kg2+- Ng5 (28...Nf4!? 29.gf4 Qf4+-) 29.Nc2+- (29.Nc2 Qc5 30.Bb4 Qe5 31.Be7+-) 1–0. DEFFM – GuestDQWS, freechess.org, 2018.

10.Nc3 Nbd7 11.Be2 h6 12.0-0 Nc5 (12...e5 13.d4 e4 14.Nd2+=) 13.Qc2 (13.d4 Nce4+=) 13...Bd7 14.Ne5 (14.d4 Nce4+=) 14...Be8 (14...cb5 15.cb5 Bd6 16.d4+=) 15.d4 Nce4 16.Ne4 Ne4 17.f3 (17.bc6 bc6 18.Rb1 f6+=) 17...Nf6 (17...Nd6 18.bc6 bc6 19.c5+=) 18.bc6 bc6 (18...Bc6 19.Rb1+=) 19.c5+- Nd7 1–0. DEFFM – GuestZBVZ, freechess.org, 2018.

10.bc6 bc6 11.cd5 cd5 12.Nc3 Qa5 13.Be2 Ba6 14.0-0 Be2 15.Ne2 Na6 16.Ned4 (16.Bf6 Bf6 17.d4 Be7=) 16...Rc8 17.Bc3 Bb4 (17...Nb4 18.Qe2=+) 18.Nb3 (18.Bb4 Nb4 19.Qe2 Ne4=+) 18...Qa3 (18...Qd8!? 19.Bd4 Bd6=) 19.Bf6+= gf6 20.Nbd4 Nc5 21.Nc2 Qb2 22.Nb4 Qb4 23.d4 Ne4 24.h3 Qb2 25.Qa1 Qa1 26.Ra1 Rc2 27.Rf1 ½-½. mr5reasons1 (1750) - tapanis (1940), gameknot.com, 2019.

10.Be2 cb5 11.cb5 Nbd7 12.0-0 Bd6 13.Qa4 (13.Qc2 e5=) 13...e5 14.d4 e4 15.Ne5 Qc7 16.f4 (16.b6!? Nb6 17.Qb3+=) 16...ef3!-/+ 17.Bf3 (17.Bf3 Ne5 Combination; 17.Nf3 Ng4 Combination; 17.Rf3 Ne4 Combination; 17.gf3 Ne5 Combination) 17...Ne5 18.de5 Be5 19.Be5 Qe5 20.Qd4 Qd4 21.ed4 Be6 22.Nc3 Rc8 23.Ne2 (23.Na4 Nd7 24.Kf2 Kf8-/+) 23...Rc4 (23...g5 24.Ng3-/+) 24.Ra1 (24.Nf4!?-/+) 24...g5-+ 25.h3 Rb4 26.Nc3 Rd4 27.Ra8 Kg7 28.Rb8 Rc4 29.Ne2 h5 30.g3? (30.Ng3 h4 31.Nh5 Nh5 32.Bh5-+) 30...Bh3 31.Rb7 d4 32.Kf2 Bg4 33.b6 d3 34.Rc7 d2 35.Rc4 d1Q 36.b7 Bf3 37.Kf3 Qd5 (37...Qd5 38.Kf2 Qb7-+) 0–1. Langschmidt,Dirk (2015) – Ziebarth,Susanne (1810), RSS7E–66 remoteschach.de, 2007.

10.Be2 Nbd7 11.0-0 Qa5 12.Bc3 Qa2 13.d3 Rd8 14.Nbd2 dc4 15.dc4 (< 15.Nc4 cb5 16.Ncd2 Nd5=+) 15...Nc5 16.Qa1 Qc2 (16...Qa1 17.Ra1 cb5 18.cb5=) 17.Nd4 Qa4 18.bc6 bc6 19.Qa4 Na4 20.Ba5 (20.Nc6? Nc3 21.Bf3 Rd7-+) 20...Rd6? (better is 20...Rd7!? 21.Nc6 Bd6+/–) 21.Ra1+- Nc5 (21...c5 22.Nb5 Rd2 23.Bd2+-) 22.Bb4 Nfd7 (22...Ncd7 23.Bd6 Bd6 24.Nc6+-) 23.Bc5 Nc5 24.Ra8 (24...g6 25.Rc8 Kg7 26.N2f3+-) 1–0. Kreuzer,Uwe – Kohlmann, tt Verb–Liga, 1984.

10.Be2 Nbd7 11.Nc3 dc4 A) 12.Bc4 Nb6 (12...cb5 13.Bb5 e5 14.d4 ed4 15.Nd4 Qc7 16.0-0 Bd6 17.h3 Rd8=; 12...Bb4 13.Qb3 Bd6 14.d4 e5 15.0-0 ed4 16.Nd4 Ne5 17.bc6 bc6=) 13.Be2 Bd7 14.0-0 Qc7 15.bc6 Bc6 16.Nb5 Qd8 17.Bf6 Bf6=; B) 12.bc6 Nc5 (12...Nb6 13.Ne5 Nfd5 14.Nd5 ed5 15.Bd4 Bf6 16.cb7 Bb7 17.Bb6 Qd6+=; 12...bc6 13.Bc4 Nb6 14.Be2 c5 15.0-0 Bb7 16.Qc2 c4 17.Rb1 Qc7=) 13.Bc4 bc6 14.Ne5 Bb7 15.0-0 Ncd7 16.Nd7 Qd7 17.Qc2 Ra8=.

10.Be2 Nbd7 11.Nc3 Nc5 12.0-0 Nce4 (12...dc4 13.Bc4 Bd7 14.Ne5 cb5 15.Nb5 Nce4 16.Nd4 Nd6 17.Bb3 Nfe4+=; 12...cb5 13.Nb5 dc4 14.Bc4 Nd5 15.d4 Na6 16.Qb1 Nab4 17.e4 Nb6+=; 12...Qc7 13.d4 Nce4 14.Qb3 cb5 15.Nb5 Qd8 16.Nc3 dc4 17.Bc4 Qd6+=) 13.bc6 bc6 14.Qc2 (14.Ne4 Ne4 15.d3 Nf6 16.Qc2 Bb4 17.Be5 c5+=) 14...Bd7 (14...Nc3 15.Bc3 Ne4 16.Bb2 Bd6 17.Ra1 c5+=) 15.Ne5 (15.Ne4 Ne4 16.d3 Nd6 17.c5 Nb5+=) 15...Qc7 (15...Bd6 16.d4 Nc3 17.Bc3 Ne4+=) 16.Ne4 Ne4 17.f3 (17.cd5 ed5+=) 17...Nf6 (17...Bd6+=) 18.Bd3 g6 19.c5 Rb8 20.Qc3 Qd8 21.g4 h6 22.Qd4 (22.f4 d4 23.Qd4 Be8+-) 22...Rb7 (better is 22...Be8!?+=) 23.f4+/– (23.Nd7 Qd7 24.f4 e5 25.fe5 Qg4 26.Qg4 Ng4+/–) 23...Qa5 24.g5 (better is 24.Nd7 Rd7 25.Bc3+-) 24...Rb4? (24...Bc5 25.Nc4 dc4 26.Qf6 Kf8 27.Qh8 Ke7 28.Bf6 Kd6 29.Bc4 Be3 30.de3 c5 31.Be5 Kc6+-) 25.Bc3+- Rd4 26.Ba5 Ra4 27.gf6 Bc5 28.Nd7 Ra5 29.Nc5 Rc5 30.Ra1 1–0. pvanr (2085) – fixxxer (1940), gameknot.com, 2013.

10.Be2 Nbd7 11.Nc3 Nc5 12.bc6 dc4 (12...bc6 13.d4 Nce4 14.0-0 Ba6 15.Ne5 c5 16.Ne4 Ne4 17.Bd3 f6=; 12...Nce4 13.cd5 Nc3 14.dc3 Nd5 15.cb7 Bb7 16.0-0 Qa5 17.c4 Nc3+/–) 13.Bc4 bc6 14.Ne5 Bb7 15.0-0 Ncd7 16.Nd7 Qd7 17.Qc2 Ra8 =.

10.Nc3 dc4 11.Bc4 Nb6 12.Be2 =+.

10.Nc3 c5 11.d3 Nb6 =.

10.Nc3 c5 11.cd5 Nb6 (11...ed5!? 12.Qc2 g6=+) 12.de6+= Be6 13.Be2 Bd6 (13...Bf5 14.0-0+=) 14.0-0 Qe7 15.Qc2 Ra8 (15...h6 16.Bb2+=) 16.Ng5+- Bd7 17.f4 Ra5 18.Bc4 (18.Nce4 Ne4 19.Ne4 Bf5+- (19...Bb5?? 20.Bb5 Rb5 21.Qd3+-)) 18...Be8 (18...h6 19.Bf7 Kf8+-) 19.Nd5+- Nbd5 20.Bd5 Nd5?? (better 20...Ra1 21.Ra1 h6 (21...Nd5?? 22.Qh7 Kf8 23.Qh8) 22.Bf7 Bf7 23.Ra8 Ne8 24.Nf7 Kf7 25.Qc4 Kf8+-) 21.Qh7 Kf8 22.Bg7 (22.Qg7) 1–0. GuestYNMD – GuestBCDF, freechess.org, 2019.

10.Nc3 c5 11.Be2 Nb6 12.cd5= ed5 (12...Nbd5 13.Nd5 Nd5 14.0-0=) 13.d4 (13.0-0 Re8=) 13...c4 14.Ne5 (14.0-0 Bf5=+) 14...Bd6 (14...Re8 15.0-0=+) 15.0-0 Qc7 (15...Re8 16.Bf3=+) 16.f4 (16.Bf3 Bf5=+ (16...Be5 17.de5 Qe5 18.Nd5+/–)) 16...Bd7 (16...Bf5 17.Bf3-/+) 17.Bf3 (17.Nd7 Qd7 18.Bf3 Re8-/+) 17...Ra8 (17...Bf5 18.Re1=+) 18.g4 (18.Qc2 Be7=+) 18...Bb4 19.g5 Bc3 20.Bc3 Ne8 (20...Ne4 21.Be4 de4 22.Qc2=+) 21.Qd2 (21.e4 de4 22.Be4 Nd6=+ (22...Bb5?! 23.Qc2+=)) 21...Bh3 (21...Bb5 22.Rb1 Nd6 23.f5-/+) 22.Rc1= f6 23.Ng4 fg5 (23...Qd7 24.Nf2 fg5 25.Ba5-/+) 24.Ne5 gf4-/+ 25.ef4 Nf6 26.Ba5 Qd6 27.Bb4 Qe6 28.Re1 Qf5 29.Bc5 Nbd7 30.Nd7 Qd7 31.b6 Ne4 32.Be4=+ de4 33.Qe2 Be6 34.f5 Bd5-+ 35.Rf1 c3 36.Qe3 c2 37.Qg5 h6 38.Qf4 Re8 39.Ba3? e3 40.Qc7 Qf7 41.Qf7 Kf7 42.Bc1 Re4 43.Re1 Rg4 (44.Kf1 Bc4 45.Re2 Rd4 46.Be3 Rd1 47.Kf2 c1Q (< 47...Be2 48.Ke2 Kf6 49.h4-+) 48.Bc1 Be2 (< 48...Rc1 49.Re4-+) 49.Bh6 Bd3-+) 0–1. Peters,Andreas (2340) – Becker,Michael (2305), Oberliga Ost–A, 2001.

10.Nc3 c5 11.Be2 dc4 12.0-0 b6 13.Bc4 Bb7 14.d3 Qa8 (14...Qc7 15.Ng5=+) 15.e4= Qb8 16.Qb3 Qd6 17.Ne2 Ng4 18.h3 Nge5 The backward pawn on d3 becomes a target 19.Nd2 Qc7 20.f4 Nc4 21.Nc4 Ra8 22.Bc3 White prepares e5 22...Bf6 23.e5 Be7 24.Ng3 (24.f5 Nf8=) 24...Bd5=+ 25.Qb2 Nf8 (25...Bf8 26.f5=+) 26.Qe2 (26.f5 Ra7=) 26...Ng6 27.Ne4 (27.f5 Nh4 28.fe6 Be6=) 27...Bf8 28.g4 Rd8 29.Qe3 Ne7 30.f5 Nc8 31.Rf2 (31.f6 Be4 32.de4 Qd7=+) 31...Qd7=+ 32.Qg5 Be4 33.de4 Qe8 34.Qf4 (34.f6 Rd3 35.fg7 Be7-/+ (worse 35...Bg7 36.Bb2=+)) 34...Rd3-/+ (34...Qb5 35.fe6 h6 36.ef7 Kh7 37.Nb2+-) 35.Bb2 (35.Rf3 Rf3 36.Qf3 Qb5-+) 35...Rh3 (35...Qb5 36.fe6 Rg3 37.Kh2+-) 36.g5 Rd3 (36...Qb5 37.fe6 Rg3 38.Kh2+-) 37.g6 hg6 (37...Qb5 38.fe6 Kh8 39.Qf7 Rd1 40.Kh2 hg6 41.Qf8 Kh7 42.Rf3 Rd2 43.Nd2 Qe2 44.Kg1 Qd1 45.Nf1 Qf3 46.Qf3+-) 38.Rh2 Qd8 (38...Qb5? 39.Qh4 Rd1 40.Kf2 Qb2 41.Nb2 Rd2 42.Ke1 Rh2 43.Qh2 gf5 44.ef5 ef5 45.Qg2+-) 39.fe6 fe6 40.Qg4 Qe8 41.Qh4 (41.Kf1 Qf7 42.Rf2 Qd7-/+) 41...Rd1 42.Kf2 Qb5 (42...Qd8 43.Qh3 Kf7 44.Qf3 Ke7=+) 43.Rh3 Ne7 (43...Qe8 44.Nd6 Bd6 45.ed6 Qf8 46.Ke3 Nd6 47.Qh7 Kf7 48.Rf3 Nf5 49.ef5 gf5 50.Rf5 ef5 51.Qf5 Ke8 52.Qh5 Qf7 53.Qd1-/+) 44.Qh8= Kf7 45.Rf3 Nf5 46.ef5 gf5 47.Qh5 Kg8 48.Rh3 Qa4 49.Qh8 Kf7 50.Qh5 g6 51.Qe2 Kg7 (51...Be7 52.Ra3 (52.Nb6 Qf4 53.Kg2 Rd2 54.Qd2 Qd2 55.Kf1 Qd1 56.Kg2 Qc2 57.Kf1 Qb1 58.Bc1 Qc1 59.Kg2 Qb2 60.Kf3 Qb6 61.Rh7 Kf8-+) 52...Bh4 53.Ke3 Qa3 54.Ba3=+ (worse 54.Na3 Re1-/+)) 52.Ra3= (52.Nb6?? Qf4 53.Qf3 Rd2 54.Ke1 Qf3 55.Rf3 Rb2-+) 52...Qd7 53.Rg3 (better 53.Nd6!? Rh1 54.Qd3=+) 53...Rh1-/+ 54.Qf3 Rh4 55.Nd6 (55.Nb6 Qd2 56.Kg1 Qb2 57.Qb7 Kh6-+) 55...Kh7 56.Rh3 (better 56.Rg2!? Qa4 57.Kg1=+) 56...Qa4-+ 57.Ke1 Bg7 58.Ne4 Qb4 59.Bc3 Qb1 (59...Qe4?! 60.Qe4 Rh3 61.Qc4=) ½–½. Muri,Heinrich (2340) – Blauhut,Holger (2360), EM–MN–063 ICCF Email, 2003.

10.Nc3 c5 11.Be2 dc4 12.Bc4 Nb6 13.Be2 =+.

10.d4 c6 11.bc6 bc6 12.Nbd2=.

10.d4 Ne4 11.Nbd2 (11.Bd3 Bb4 12.Nfd2 Nd2 13.Nd2 dc4 14.Bh7 Kh8+=) 11...Bb4 (11...Ndf6 12.Bd3=) 12.Be2 (12.Bd3 Nb6 13.c5 Nc4 14.Bc4 dc4=) 12...Nb6 (12...dc4 13.0-0 Nd2 14.Nd2 Bd2 15.Qd2=) 13.Qc2 (13.c5!? Nd7 14.0-0+=) 13...Nc4 14.Bc4 Nd2 15.Nd2 Bd2 16.Qd2 (16.Kd2 dc4 17.Qc4 Bd7=+) 16...dc4-/+ 17.0-0 Bd7 (17...Qd5 18.Rb1 Bd7 19.Qb4-/+) 18.Rb1 (18.Qb4 Qg5-/+) 18...Qg5 19.Qb4 Qf5 20.Bc3 Ra8 21.Qb2 Ra3 22.Ra1 (22.Rc1 Rb3 23.Qa1 Qb5 24.Qa8 Be8-/+) 22...Ra1 23.Qa1 f6 (23...h6 24.h3 Qb5 25.Qa8 Kh7 26.Qf8-+) 24.h3 Qb5 25.Qa8 Kf7 26.Qd8 Qc6 (26...e5 27.de5 fe5 28.Qh4-/+) 27.f3 (27.Bb4 Kg6-/+) 27...Qd6 (27...Kg6 28.Kh1-+) 28.Qa8 (28.Bb4!? Qb4 29.Qd7 Qe7 30.Qa4-/+) 28...b5-+ 29.Qa5 (29.Qb8 Kg6 30.Kf2 Qa3-+) 29...c5 30.dc5 Qc5 31.Bb4? (31.Kf2-+) 31...Qe3 32.Kh2 (32.Kf1 Qd3 33.Kf2 Qd4 34.Kf1 e5-+) 32...e5 (32...Qd4 33.Qd8-+) 33.Qd8 Qf4 34.Kg1 (34.Kh1 Qf5-+) 34...Qd4 35.Kh2 Qd5 36.Bf8 (36.Kg3 Kg6-+) 36...Qe6 37.Qb8 (37.Bb4 Kg6-+) 37…c3 0–1. DEFFM – GuestTWTP, freechess.org, 2016.

10.Be2 dc4 11.Bc4 Nb6 12.Be2 Bd6 13.0-0 Bd7 14.Qc2 Nfd5 15.Nc3 Qe7 (15...f6 16.Ne4=) 16.Ne4 Rc8 17.Bd4 e5 18.Bb6 Nb6 (worse 18...cb6 19.Qd3 Be6 20.Nd6 Qd6 21.e4+-) 19.d4 ed4 20.Nd4 Ba3 (20...Be5 21.Rd1=) 21.Rb1 Ra8 22.Bf3 (22.Rd1 Nd5+=) 22...Bc8 (22...Qe5 23.Rd1=) 23.h3 h6 24.Rb3 (24.Ng3 Qe5+=) 24...Qe5 (better 24...Bb4=) 25.g3 (better 25.Rd3!?=) 25...Bh3-/+ 26.Kh2 Bc8 27.Qd3 Bf8 28.Rb1 Ra2 29.Qb3 Ra4 30.Qc2 g6 31.Bg2 Bg7 32.Rc1 Rc4 33.Qb1 Bd7 34.Rc4 Qh5 (better 34...Nc4!? 35.Qd3 Bb5 36.Nb5 Qb5 37.Qd8 Kh7 38.Qc7 Ne5-/+) 35.Kg1= Nc4 36.Qb4 (better 36.Qc1 Ne5 37.Nc5+=) 36...Qd1-/+ 37.Kh2 (37.Bf1 Ne5 (37...Bd4?! 38.ed4 Nb6 39.Nf6 Kg7 40.Qc5=) 38.Nc3 Qe1-/+) 37...Ne5-+ (37...Bd4?! 38.Qc4 Be5 39.Nc5 Qh5 40.Kg1=+) 38.f3 Qd3 39.Qd2 Bb5 0-1. Mely (2660) - gluv (2630), ChessWorld.net, 2011.

10.Be2 dc4 11.Bc4 Nb6 12.Be2 Bd7 13.0-0 Qa8 14.Bf6 Bf6 15.d4 Qa5 16.Qb3 Ra8 17.Nbd2 Nd5 18.Rc1 Qb6 19.g3 Be7 20.Ne5 Be8 21.Rb1 Ra3 22.Qb2 Nc3 (22...Qa7!? 23.Bc4 Bd6=) 23.Ndc4+= Qb5 24.Na3 Ne2 25.Kg2 Qd5 (better is 25...Qb2!? 26.Rb2 f6+=) 26.f3+- f6 27.Qe2 (27.Nec4!? b5 28.Qe2 bc4 29.Rb8 Ba3 30.Re8 Kf7 31.Rh8+-) 27...fe5 28.Nb5 Bd8 29.e4+- Bb5 30.Rb5 Qd4 31.Rb7 Kf7 32.h4 Be7 33.Rc7 Kf6 34.Qc2 Bd8 35.Rc4 Qe3 36.Rc3 Qe1 37.Rc6 Qa5 38.Qc4 Qd2 39.Kh3 Qd7 40.Qa6 Kf7 41.Rd6 Qc7 42.Qc6 Qa5 43.Re6 Be7 44.Qd7 Qc5 45.g4 Qa3 46.Re5 (46.Re5 Qf3 47.Kh2 Qf4 48.Kh3 Qe5 49.Qf5 Qf5 50.ef5-+ (50.gf5?? Bh4 51.e5 Bf6-+)) 1–0. Stanciu,Ad (2000) – Stroescu,Gheorghe, 1st Gaudeamus Cup, 2011.

10.Be2 dc4 11.Bc4 Nb6 12.Be2 Bd7 13.0-0 c5 14.Qb3 Nc8 (14...Qa8 15.Be5=) 15.Ne5 (15.Rc1 Bd6+=) 15...b6 16.Bf3 Nd6 The isolani on b5 becomes a target 17.Nc3 Qc7 Black prepares the advance c4 18.Nd7 Nd7 19.Bb2 Ne5 Black intends c4 (19...c4 20.Qc2=) 20.Be2 Rd8 21.Rc1 c4 22.Qa4 Nb7 (22...Qb7!?=) 23.Ne4+/- f5 24.Bc4 (24.f4 A) worse 24...fe4 25.Be5 Bd6 26.Ba1+/- (worse 26.Rc4 Nc5+=); B) 24...Nf7 25.Rc4 Qb8+=) 24...Nc4= 25.Rc4 Qb8 26.Ng3 Rd2 27.Qa1 Nc5 (27...Na5!? 28.Ra4 Qe8 29.Bg7 Nb3=) 28.Bg7+/- Nb3 29.Qb1 Kg7 30.Qb3 Qd8 31.Rc1 (31.Rc6 Rd1 32.Nf1 Rd6+-) 31...Qd7 (31...Qd5 32.Qc3 Kf7 33.Nf1+/-) 32.h3 Bc5 33.Nh5 Kf7 34.Qc3 Rd1 35.Kh2 Qd6 36.g3 Rc1 37.Qc1 e5 38.Qc4 Kf8 39.Qa2 Qg6 40.Qa8 Kf7 41.Qd5 Qe6 Black intends e4 42.Qa8 Kg6 (42...Qg6 43.Qb7 Be7 44.Qd5 Qe6+/-) 43.Qf3 (43.Qc6 Qd6 44.g4 fg4 45.hg4 Qc6 46.bc6 Bd6+-) 43...Qd6 (43...Bd6 44.g4 e4 45.Nf4 Kf6 46.Qg3+/-) 44.g4 e4 45.Nf4 Kf7 (45...Kf6!? 46.g5 Kg7+-) 46.Qe2+- Qe5 (46...fg4 47.Qc4 Kg7 48.hg4 Qe5+-) 47.gf5 (better 47.Qa2!? Kg7 48.Qe6+-) 47...Qf5+/- 48.Qc4 Kf6 49.Qg8 Ke5? (49...Ke7!?+/-) 50.Kg3 (50.Qb8!? Kf6 51.Qe8 Ba3+-) 50...Kf6 51.Qd8 Kg7 52.Qc7 Kf6 53.Qc6 Kf7 54.Qd5 (54.h4 Ke7+-) 54...Qd5 (54...Kf6 55.Qa8+/-) 55.Nd5+- Ke6 56.Nc3 Kf5 57.f3 (57.Na4 Bd6 58.Kh4 Be7 59.Kh5 Bd8+-) 57...Be3+/- 58.fe4 Ke5 59.Kf3 Bg5 (59...Bc5!?+/-) 60.Nd5+- Bd8 61.Ke3 Bg5 62.Kd3 Bd8 63.Nb4 Bh4 64.Nc6 Ke6 (64...Kd6!? 65.Kd4 Bf2 66.Kc4 h6+/-) 65.Nd4 Kf6 66.Nf3 (66.e5 Kf7+-) 66...Bg3 (66...Bf2 67.Kc4 Ke6 68.Ng5 Ke5 69.Nh7 Ke4 70.Nf6 Kf3 71.Kd5+-) 67.Kd4 White prepares e5 67...h6 (67...Ke6 68.Ng5 Kd6 69.Nh7 Bf2 70.Kc4+-) 68.Kd5 Bf2 69.e5 Ke7 (69...Kf7 70.Nd4+-) 70.Nd4 White prepares the advance e6 70...Kd8 (70...h5 71.Nf5 Kd7 72.e6 Kd8 73.Kc6+-) 71.Nf5 h5 72.Ke6 Be1 (72...Kc8 73.Kf7 Bc5 74.e6+-) 73.Kf7 Bb4 74.e6 Bc5 75.e7 Be7 76.Ne7 Kd7 77.h4 Kd6 78.Nc8 Kc5 79.Na7 Kd6 80.Kg6 1-0. Mely (2230) - MarkusE (2160), ChessWorld.net, 2016.

10.0-0 b6 11.c4 Bb7 12.Qc2 Nbd7 13.d4 cd4 14.Nd4 Nc5 15.Rd1 Qa8 16.Nc3 (16.Nd2!?=) 16...dc4=+ 17.Nc6 (17.f3 Nb3 18.Bc4 Nd4 19.ed4 Rc8=+) 17...Bc6-/+ 18.bc6 Qc6 19.Bc4 Rd8 20.Bb5 Rd1 21.Qd1 Qc8 22.Qd4 h6 23.h3 Bf8 24.Na4 Na4 25.Qa4 Qc1 26.Bf1 Nd5 27.Bd4 Bc5 (better 27...e5!? 28.Qa1 Qa1 29.Ba1 Bd6-/+) 28.Qe8= Bf8 29.g3 Nb4 (29...Nc3 30.Bb6 Ne4 31.Qb5=) 30.Kg2 (30.Bb6 Nd3=) 30...Nc2 (better 30...Qc7=+) 31.Bc3?? (better 31.Bb6 Ne1 32.Kg1 Nf3 33.Kg2 Ne1 34.Kg1 Nf3 35.Kg2 Ne1=) 31...Ne3!-+ 32.fe3 Qc3 33.Kf3 Qe1 34.Be2 (34.Qb5 Bd6 35.g4 g6-+) 34...Qh1 35.Kf2 Qh2 36.Kf3 Qg3 (better 36...Qh3 37.Qb8 Qh5 38.Kf2 Qh2 39.Kf1 h5-+) 37.Kg3+- 1-0. Arifars17 (2595) - Rider_Diaz (2515), Rated Bullet game, lichess.org, 2021. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 Be7 5.e3 0-0 6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1)

10.0-0 b6 11.c4 dc4 12.Bc4 Bb7 13.Nc3 Nbd7 14.Ne1 Qc7 (14...Ne5 15.Be2=+) 15.Nc2 (15.f4 Ra8=+) 15...Ra8 (15...Ne5 16.Be2 c4=+) 16.d4 (better is 16.f4!?=+) 16...cd4-/+ 17.Qd4 Nc5 (17...Bd6!? 18.f4 e5-/+) 18.Nb4 (18.Rc1=+) 18...Nce4 (18...Bd6!? 19.f4 Ncd7-/+) 19.Ne4= Ne4?? (19...Be4 20.Na6 Qb7 21.f3=) 20.Nc6 (20.Qg7) 20...Bc6?? (20...Bf6 21.Qe4 Ba1 22.Rd1=) 21.bc6 Bf6 22.Qe4+= Ra1 23.Be6 Rf1=+ 24.Kf1 Qe7?? 25.c7?? Qc7= 26.Bd5 Qc1 27.Ke2 Qb2 28.Kf3 g6? 29.Qe8+/– Kg7 30.Qf7 Kh6 31.Qf8 Bg7 32.Qf4 g5 33.Qg4 Qf6= 34.Ke2 Qb2 35.Kd3?? Qc3-+ 36.Ke2 Qb2?? 37.Kd1= Qb1 38.Kd2 Qb2 39.Kd3 Qb1 40.Ke2?? Qc2-+ 41.Kf3 Qd1 42.Kg3 Qd5 43.Qh3 Kg6 44.f4 gf4 45.ef4 Qd3 46.Kg4 Qh3 47.gh3 h5 48.Kg3 b5 49.h4 b4 50.Kf3 b3 51.Ke4 b2 52.f5 Kf6 53.Kd5 b1Q 54.h3 Qd3 55.Kc6 Qc4 56.Kd7 Bf8 57.Ke8 Qf7 58.Kd8 Bd6 59.Kc8 Qc7 0–1. nonio – Solare,Juan Maria, Rated game, 3m + 0s, 2004.

10.0-0 Nbd7 11.c4 b6 12.Na3 Bb7 (12...Bd6 13.Qc2=) 13.Qb3 (13.d3 Qc7=) 13...Qb8 (13...Qc7 14.Qd3=+) 14.cd5 (14.Rc1 Bd6=+) 14...ed5 (14...Bd5 15.Qc3=+) 15.d3 (15.Bb2 Re8=) 15...Bd6 16.h3 Re8 (16...Qe8 17.Bb2=) 17.Qb2 (17.Qc2 Ne5=) 17...Bf8 (17...Qd8 18.Qc2=+) 18.Nc2 (18.Qc2 Qd6=) 18...g6 (18...Qd6 19.Re1=+) 19.d4= Bg7 20.Nd2 (20.Rc1 Ne4=) 20...Nf8 (20...Qd6 21.Rb1=) 21.dc5 bc5 22.Bg4 Ne6 23.Be6 fe6 24.Qe5 Qe5 25.Be5= Nd7 26.Bg7 Kg7 27.Ra1 Ra8 28.Ra8 Ba8 29.Nb3 Kf6 30.Na5 Ke7 31.f4 Kd6 32.e4 Kc7-/+ 33.ed5 ed5 34.Na3 Kb6 35.Nb3 d4 36.g4 Bd5 37.Nd2 Ka5 38.h4 Kb4 39.f5 gf5 40.g5 Ka3 41.h5 Kb4 42.g6 hg6 (43.h6 Nf6-+ (43...Kb5 44.h7+/–); 42...Kb5 43.gh7 Kc6 44.h8Q+-) 0–1. Crowl,Frank A – Ozols,Karlis, AUS op (Melbourne), 1951.

10.c4 Nbd7 11.0-0 b6 12.Nc3 (12.d3 Bb7=) 12...Bb7 (12...dc4 13.Bc4 Bb7 14.d3=+) 13.Bb2 (13.cd5 Nd5 14.Nd5 Bd5=) 13...Ne8 (better is 13...dc4!? 14.Bc4 Bf3 15.gf3 Ne5=+) 14.cd5+= ed5 15.d4 c4 16.Qc2 (16.Qa4 Nef6=) 16...Nd6 (16...Nc7 17.e4 de4 18.Nd2=) 17.Nd2 (17.Ra1 f5+=) 17...f5 (17...Nf6 18.Ra1=) 18.f4 (18.Ba3!?=) 18...Nf6=+ 19.Ra1 Qd7 (19...Qc8 20.Nf3=+) 20.Ra7 (20.Nf3 Nfe4=+) 20...Nc8 21.Ra1 Re8 (21...Qe6!? 22.Nf1 Ne4=+) 22.Nf3= g6 (22...Nd6 23.Ne5 Qc7 24.Ra4=) 23.Ne5 Qe6 24.Bf3 (24.Ba3 Nd6=) 24...Bb4 (24...Nd6 25.Ra7=) 25.Ba3 Bc3 26.Qc3 ½–½. Stiefel,x – Schmid,x, Staufen–op Schwaeb.Gmuend, 1995.

10.c4 Nbd7 11.d3 Qc7 12.Nbd2 b6 13.0-0 Bb7 14.Qc2 Ra8 15.Bb2 Bd6 16.Ra1 Ra1 17.Ba1 dc4 18.dc4 h6 19.h3 Ne5 20.Bc3 Ned7 21.Bd3 Ne5 22.Be2 Ned7 23.Bd3 Ne5 ½–½. Petrek,Dominik (1735) – Salgovic,Simon (1850), MSR Deti a Mladeze CH08, 2019.

10.bc6 bc6 11.0-0 Ba6 12.Ba6 (12.d3 Nbd7=) 12...Na6 13.Qe2 Nc5 (13...Qa5 14.Be5=) 14.Ne5 (14.Bf6 Bf6 15.d4 Ne4=) 14...Qc7 (14...Qd6 15.d4 Ncd7 16.c4=+) 15.d3 (15.Nf3 Nfd7=+) 15...Ncd7 (15...Ra8 16.Nd2=+) 16.Nd7 Nd7 ½–½. Kholmov,Ratmir D (2555) – Ciocaltea,Victor (2400), Timisoara, 1977.

10.bc6 bc6 11.0-0 Nbd7 12.c4 =.

10.bc6 Nc6 11.0-0 Ne4 (11...Bd6 A) 12.Nc3 e5 13.Nb5 Bg4 14.h3 Bf3 15.Bf3 Qe7 16.d3 Ra8 17.c4 dc4=; B) 12.c4 dc4 (12...b6 13.cd5 Nd5 14.Qb3 Bb7 15.Rc1 Qd7 16.Nc3 Na5 17.Qb2 f6+=; 12...Bd7 13.d3 e5 14.c5 Qa5 15.cd6 Qa1 16.Qb3 Qa7 17.Nc3 Qa5=; 12...Re8 13.d4 b6 14.Ne5 Bb7 15.f4 dc4 16.Nc4 Be7 17.Qb3 Nb4=) 13.Bc4 e5 14.d4 e4 15.Nfd2 Qc7 16.h3 Na5 17.Bb5 Bf5=; C) 12.Bb5 Qe7 (12...Qa5 13.Nc3 e5 14.Be2 Bg4 15.h3 Bh5 16.Nb5 Bf3 17.gf3 Qd8=; 12...Bd7 13.Bc6 bc6 14.Be5 Qe7 15.Qe2 Ra8 16.Nc3 Bb4 17.Rb1 Ng4=+; 12...Re8 13.Bf6 Qf6 14.d4 Bd7 15.Nbd2 Ra8 16.c4 Ra5 17.Qb1 Ra7=) 13.Bc6 bc6 14.Be5 Ba6 15.d3 Ra8 16.Qd2 c5 17.Bd6 Qd6=+; D) 12.d4 Bd7 (12...Qc7 13.c4 dc4 14.Bc4 Rd8 15.Qe2 Ng4 16.h3 Nh2 17.Rd1 Nf3=; 12...Ng4 13.Nc3 Na7 14.h3 Nf6 15.Qd3 Bd7 16.Ne5 Bc6 17.Nc6 Nc6=; 12...Qa5 13.Nc3 Na7 14.Qd3 Bd7 15.e4 de4 16.Ne4 Ne4 17.Qe4 Bc6=) 13.Nbd2 Qc7 14.c4 b6 15.cd5 ed5 16.Qb1 Rb8 17.Rc1 b5=) 12.d3 (12.Nc3 Qa5 (12...Qd6 13.Qb1 Nc3 14.Bc3 f6 15.Qb6 e5 16.Ra1 Nb4 17.Qd6 Bd6=; 12...Bb4 13.Nb5 Qa5 14.Qb1 e5 15.c3 Be7 16.d3 Nd6 17.c4 dc4=; 12...f6 13.Ne4 de4 14.Nd4 Nd4 15.Bd4 Qd5 16.f3 e5 17.fe4 Qc6=) 13.Bd3 f5 14.Nb5 Bd7 15.Be2 Nb4 16.Nbd4 Qc7 17.d3 Nf6=; 12.Nd4 Bf6 (12...f6 13.d3 Nc5 14.Nc6 bc6 15.d4 Ne4 16.Nd2 Nd2 17.Qd2 Bd6=) 13.Nc6 bc6 14.Bf6 Qf6 15.c4 e5 16.cd5 cd5 17.d3 Nd6=; 12.Bb2 Qb6 13.Qc1 Nd6 14.Na3 Bd7 15.c4 Qb3 16.d3 Ra8 17.Nd2 Qb4=) 12...Nd6 (12...Nf6 13.Nbd2 Qc7 14.c4 e5 15.Qb3 Rd8 16.Rb1 d4 17.Qb5 de3=) 13.Nbd2 Bf6 (13...Qc7 14.Qb1 b5 15.e4 Bd7 16.Qb3 de4 17.de4 b4=) 14.c3 (14.c4 b5 15.cb5 Nb5 16.Qa4 Nba7 17.Rc1 Ba1+=) 14...Qa5 (14...e5 15.c4 dc4 16.dc4 Qa5 17.Qc2 Bf5=) 15.Nb3 (15.c4 Be7 16.Nb3 Qa7 17.c5 Ne8+=) 15...Qa2 (15...Qa4 16.c4 dc4 17.dc4 Nc4=) 16.Nfd2 (16.Qb1 Qb1 17.Rb1 e5=) 16...Nb5 (16...e5 17.Bf3 Be6=) 17.Qc1 (17.d4 Nd6+=) 17...Be7 (17...e5=) 18.c4 Nc7 19.c5 Na5? (better 19...e5+=) 20.Qc3+- Bf6? (20...f6 21.Qa5 Qa5 22.Na5 Bc5+-) 21.Qa5 Qa5 22.Na5 e5 23.Rb1 Ne6 24.Ndb3 (24.c6 bc6 25.Nc6 Re8 26.Ne5 Ba6+-) 24...Nd8 25.Bf3 Be6 26.Kf1 g5 27.Ke1 g4 28.Be2 h5 29.f4 gf3 30.Bf3 h4 31.Ke2 (better 31.Nd2!? Be7 32.Be5 Bc5+-) 31...Re8 32.Bc3 d4 33.Bb4 de3 34.Nb7 Nb7 35.Bb7 Bg5 36.h3 Rd8 (36...Bf4 37.Be1 Bg5 38.c6+-) 37.c6 Bf5 38.Rd1 Bg6 (38...Be6 39.Nc5 Bc8 40.Ne4 Bb7 41.cb7+-) 39.c7 Bh5 40.Bf3 Bf3 41.Kf3 Rc8 42.Bd6 f6 43.Na5 Ra8 (43...Kf7+-) 44.Nc4 (44.Rb1 Kf7 45.Rb8 Rb8 46.cb8Q Bh6 47.Qb7 Kg6 48.Qe4 Kg7 49.Qg4 Kf7 50.Qd7 Kg8 51.Nc6 e4 52.Ke4 e2 53.Ne7 Kg7 54.Nf5 Kh8 55.Qe8 Kh7 56.Qf7 Kh8 57.Qf6 Kg8 58.Qg6 Kh8 59.Qh6 Kg8 60.Qg7) 44...e2 (44...Rc8 45.Nb6 Rc7 46.Bc7+-) 45.Ke2 Ra2 (45...Kf7+-) 46.Kf3 (46.Kf3 Kg7 47.c8Q+-) 1–0. Tejera Santana,S (1940) – Roque Hernandez,F, Vecindario ESP, 1st Open, 2011.

10.bc6 Nc6 11.Nc3 A) 11...Bb4 A1) 12.0-0 e5 13.Nb5 Re8 14.d4 e4 15.Ne5 Nd7 16.Nd7 Bd7 17.c3 Bf8=; A2) 12.Qb1 Qe7 (12...Re8 13.Nb5 Ne4 14.c3 Be7 15.c4 Qa5 16.Bb2 Rd8 17.Qc2 Nb4=+; 12...Ne4 13.Nb5 Bd7 14.0-0 Qe7 15.Qb2 Nf6 16.Rb1 Ra8 17.c3 Ba5=; 12...Qa5 13.Na2 Be7 14.0-0 Bd7 15.Nc3 Ra8 16.Qb7 Rb8 17.Qa6 Qa6=) 13.Bb5 Bd7 14.Na4 e5 15.Nb6 Bg4 16.Bc6 Bf3 17.Ba4 Bg2-+; A3) 12.Nb5 Bd7 (12...Ne4 13.0-0 Qa5 14.Qb1 e5 15.Qb2 Re8 16.c3 Bc5 17.d3 Nf6=; 12...Re8 13.Nbd4 Nd7 14.Qb1 Bc5 15.Qb5 Nd4 16.Bd4 Bd4 17.ed4 Qc7=; 12...Qe7 13.c3 Bc5 14.0-0 Qd7 15.c4 Be7 16.Ne5 Qd8 17.Qc2 dc4+=) 13.Bb2 Ne4 14.0-0 Qb6 15.Qa1 f6 16.c3 Bc5 17.Ba3 Ne5=; B) 11...e5 12.Nb5 Bd6 (12...Nd7 13.0-0 Re8 14.Bc3 b6 15.Qa1 Bf6 16.Qa8 Ndb8 17.Qa4 d4=) 13.Nd6 Qd6 14.d4 e4 15.Ne5 Be6 16.0-0 Ra8 17.Qd2 Qc7=; C) 11...Re8 12.Nb5 (12.0-0 e5 13.Nb5 Bb4 14.d4 e4 15.Ne5 Nd7 16.Nd7 Bd7 17.c3 Bf8=) 12...Nd7 13.Bb2 e5 14.Qa1 f6 15.0-0 Nb6 16.d4 e4 17.Nd2 Bb4=; D) 11...Bd7 12.Qb1 Qb8 (12...Qc7 13.Nb5 Qb6 14.0-0 Ra8 15.Rc1 Ra4 16.Nc3 Qb1 17.Rb1 Rb4=; 12...Qc8 13.Nb5 Qb8 14.Nbd4 Bd6 15.Nb5 Be7 16.Nbd4 Rc8 17.Nc6 bc6=; 12...Qa8 13.Nb5 Rc8 14.0-0 Qb8 15.Nbd4 Na5 16.Rc1 Qc7 17.Nb5 Bb5=) 13.Qb3 Na5 14.Qb1 Rc8 15.0-0 Qc7 16.Rd1 Nc4 17.d3 Na3=+.

11.0-0 dc4 12.Bc4 Nd5 13.d4 =.

11.0-0 dc4 12.Bc4 Nd5 13.Ne5 Bf6 (13...Bb7 14.d4=) 14.f4 (14.d4 Bb7=) 14...Nd7 (14...Bb7 15.Qh5=) 15.Nc6 (15.Qf3 Bb7=) 15...Qe8 (15...Qc7 16.Bd5 Ba1 17.Be4=) 16.Nc3 (16.Be5 Be5 17.Ne5 Bb7=) 16...Nc3 17.dc3 Bb7 18.Qd6 Nb8 19.Ne5 Be5 20.Qb6 Bg2 (20...Qc8 21.fe5 Rd8 22.Qa7=) 21.Kg2+= Bf6 22.Qc5 Qd7 23.Qh5 Qd2 (23...Rc8!? 24.Qe2 Qb7 25.Kg1 Nd7+-) 24.Qe2+- Qd6 (24...Qd8 25.Bd3+-) 25.e4 Bh4 (25...Qb6 26.Bd3+-) 26.e5 Qe7 (26...Qc5 27.Bd3+-) 27.Kh3 Rc8 28.Bd3 (better 28.f5 Bg5 29.fe6 fe6 30.Qg4+-) 28...Nd7?? (better 28...Rd8+-) 29.Qh5 Nf6 (29...f5 30.Qh4 Qc5+-) 30.ef6 (30.Kh4 Nh5 31.Kh5 Qb7-+; 30.Qh4 Qd8 31.Rd1 Nd5 32.Qh7 Kf8+-) 30...Bf6 (30...Qf6 31.Qh7 Kf8 32.Qh8 Ke7 33.Qc8 Qh6+-) 31.Qh7 (31.Qh7 Kf8 32.Qh8) 1–0. DEFFM – GuestQHTN, freechess.org, 2018.

11.0-0 Nbd7 12.d3 Qc7 13.Nbd2 Bb7 14.Qc2 Rc8 15.Bb2 Bd6 16.Ra1 Ra8 17.cd5 ed5 18.d4 c4 19.h3 (19.Ra8 Ba8 20.Bc3 Bb7=) 19...Ra5 20.Ra5 ba5 21.Bc3 Bb4 22.e4 (22.Ne5 Qb6 23.Nd7 Nd7 24.Bb4 ab4-/+) 22...Nb6 (22...de4 23.Ne5 Ne5 24.de5 e3 25.fe3 Bc3 26.Qc3 Nd5=+) 23.Ne5 Nfd7 24.Nd7 Qd7 (< 24...Nd7 25.ed5 Nb6 26.Bc4 Bd5 27.Bb4 ab4 28.Bd3 Qc2 29.Bc2+/–) 25.ed5 (The passed pawn on d5 will quickly become a dangerous weapon) 25...Qb5 (25...Qd5 26.Bf3 Qd7 27.Bb7 Qb7 28.Bb4 ab4 29.Nc4+=) 26.Bb4 ab4 27.Bc4 Nc4 28.Qc4 (< 28.Nc4 Qd5 (28...Bd5?! 29.Ne3 f6 30.Qf5=) 29.f3 Qd4 30.Kh1 Bd5-+) 28...Qc4 29.Nc4 Kf8 (29...Bd5!? 30.Ne3 Be4=+) 30.d6= Ke8 31.Ne5 b3 32.d7 Kd8 33.Nd3 (33.Nf7 Kd7 34.Ne5 Kd6-+) 33...Ba6 34.Nb2 (34.Ne5 b2 35.Nf7 Kd7 36.Kh2-+) 34...Kd7-/+ 35.f3 Kd6 (35...f5 36.Kf2-/+) 36.Kf2=+ Kd5 37.Ke3 Bf1 38.Kf2 Bg2 (38...Bc4!? 39.Ke3 Bb5=+) 39.Kg2= Kd4 40.Na4 Kd3 41.Kg3 Kc2 42.Kf4 b2 43.Nb2 Kb2 44.Ke5 Kc3 45.h4 Kd3 46.Kf4 Kd4 47.h5 h6 48.Kf5 Ke3 49.f4 Kf3 50.Ke5 Kg4 (51.Ke4 Kh5-+) 0–1. Labahn,Wolfgang – Schmidt,G, corr Vergleichskampf, 1990.

11.d3 Bb7 =.

11.Ne5 Bb7 12.0-0 Nbd7 13.Nc6 Bc6 14.bc6 The passed pawn on c6 quickly leads to threats 14...Nb8 15.cd5 Nd5 (worse 15...Qd5 16.c7 Nc6 17.Ba6=) 16.Qa4 Qc7 17.Qg4 (17.Nc3 Nb4=+) 17...Bf6 (17...Nf6 18.Qf3-/+) 18.Nc3=+ Nc3 19.dc3 Nc6 20.Rd1 Rd8 21.Rd8 Qd8 22.Qe4 Qd5 23.Qa4 g6?? (better 23...h6=+) 24.c4+- Qd2? (24...Qf5 25.Bf6 Qf6 26.Qc6 Qb2+-) 25.Bf6 Qe1 (25...Qd6 26.Qa8 Nb8+-) 26.Bf1 (26.Bf1 Qb1 27.Qa8 Nb8 28.Qb8) 1-0. GuestGKNZ – PaulFang, freechess.org, 2020.

12.Bb2 Nbd7 13.d4 Qc7 14.Nbd2 h6 15.Qc2 Rc8 16.Ne5 (16.cd5 Bd5 17.Rc1 Qd8=) 16...Ne5 (16...cd4!? 17.ed4 dc4=+) 17.de5= Nd7 18.cd5 ed5 19.Bg4 Ne5 (19...Ra8!? 20.e6 Nf6=) 20.Bc8+= Bc8 21.Ra1 g6 (21...Bd6 22.Ra8 Ng6 23.Qf5 Bh2 24.Kf1+/-) 22.Ra8 Ng4 (22...Nd7 23.e4 Bf8 24.ed5+-) 23.Qa4 Qh2 24.Kf1 Qc7?? (better 24...Qh1 25.Ke2 Qg2 26.Rc8 Bf8+/-) 25.Qg4+- (25.Qg4 Bf8 26.Rc8+-) 1-0. DEFFM – GuestJQFR, freechess.org, 2021.

12.d4 cd4 13.Bd4 dc4 14.Bc4 Nbd7 =.

12.d4 cd4 13.Nd4 dc4 14.Bc4 Bd5 (14...Bd6 15.f4=) 15.Nd2 (15.Bd3 Bd6=) 15...Re8 (15...Qc7 16.Bd5 Nd5 17.e4=) 16.Qe2+= Qc7 17.Bd5 Nd5 18.Rd1 (18.e4 Nf6=) 18...Nc3 (18...Rd8 19.e4 Nf6 20.N4f3=) 19.Bc3+= Qc3 20.Ne4 (20.Qc4 Rc8 21.Qc3 Rc3+=) 20...Qb4 21.Qc2 Bc5 22.Nc5 bc5 (The passed pawn on b5 will become decisive later) 23.Rb1+/– Qa3 24.Nf3 Nd7 25.Ng5 g6 26.Ne4 Rc8 27.Nd6 Rb8 28.Rd1 Nb6 29.Qe4 Nd5 30.Qf3 Qa7 31.e4 Nb4 32.e5 Nd5 33.Rc1 Rf8 34.Qe4 Qa3 35.Qc2 Nf4 36.Rd1 Qb4 37.Kh1 Nd5+= 38.Rb1 Qa3 39.b6+- Rb8 40.b7 Nc3 41.Re1 Nd5 42.Rc1 (42...Kg7 43.h3+-) 1–0. b4_player – opponent, gamecolony.com, 2007.

12.d4 Nbd7 13.Bb2 Qc7 14.Nbd2 (14.dc5 Nc5 (14...Qc5? 15.Ba3 Qa3 16.Na3 Ba3 17.Qd4+-; 14...Bc5?! 15.cd5 Bd5 16.Nc3=; 14...bc5?! 15.Qc2=) 15.Be5 Qc8=) 14...Rd8 (14...cd4 15.Nd4 Rc8 16.Qc2=+) 15.Qb3 (15.cd5 Nd5 16.Qc1 Rc8=) 15...dc4 (15...cd4 16.Nd4 Nc5 17.Qc2=+) 16.Nc4 (16.Bc4 cd4 17.Bd4 Bd6=) 16...cd4=+ 17.ed4 (17.Bd4 Ng4 18.Ncd2 e5-/+) 17...Bd5 18.Rc1 Rc8 (18...Bd6 19.Nfe5=) 19.Qd3 (19.Qe3 Qb7=) 19...Qb7=+ 20.Bf1 (20.Nce5 Rc1 21.Bc1 Qc7=+) 20...Be4 21.Qb3 Nd5 22.Nce5 Rc1 23.Bc1 Ne5 24.Ne5 Qc7 25.Nc6 Bd6=+ 26.h3 Nf4 27.Qc3 h6 28.Bd2 Nd5=+ 29.Qa1 Bf4 30.Be1 Bh2 31.Kh1 Bd6 32.Qa7 Qa7 33.Na7 Nf4 34.Nc8= Bc7 35.f3 Bb7 36.Na7 Nd5 37.Bc4 Bd6 38.Kg1 Ne3 39.Bd3= Ba3 40.Be4 Bd5 41.Bf2 Nd1 42.Bg3 Bb2-/+ 43.Nc6 Nc3 44.Bd5 ed5 45.Bc7 Nb5 46.Bb6 Kf8 47.Bc5 Ke8 48.Kf2 f6 49.Ke3 Kd7 50.Nb4 Ke6? 51.f4 Bc3 52.f5+= Kf5 53.Nd5 Bb2 54.g4 Ke6 55.Nf4+/– Kd7 56.h4 g5 57.hg5+/– Bc1 58.Ke4 hg5 59.Nd3 Bd2 60.Kf5 Be3 61.Kf6 Bd4 62.Bd4 Nd4 63.Kg5 Nf3 64.Kf4 Nd4 65.Ke4 Ne6 66.Ke5 Ke7 ½–½. Levin,Anatoly (1960) – Szeberenyi,Adam (2610), 2003.

12.d4 Nbd7 13.Qc2 cd4 14.Bd4 Qc7 =.

12.d4 Nbd7 13.Nc3 dc4 14.dc5 Bc5 15.Qa4 Qe7 16.Qc4 Rc8 17.Qh4 Bb4 18.Na4 Nd5 19.Qe7 Be7 20.Ne5 Ne5 21.Be5 Ra8 22.Nc3 f6 23.Bd4 Nc3 24.Bc3 Bc5 25.Bc4 Ra3 (better is 25...Kf7!?=) 26.Bb2 Ra5 27.Be6 Kf8 28.Bc3 Ra3 29.Rc1 Ke7 30.Bg8 h6 31.Bb2 Ra5 32.Bc4 Ra4 33.Bf1 Kd6 34.Rd1 Kc7 35.h3 Be4 36.Bd4 Bd4 37.Rd4 Rd4 38.ed4 g5 39.f3 Bd5 40.Kf2 f5 41.Ke3 f4 42.Kd3 Kd6 43.Kc3 Be6 44.Bc4 Bc4 (better is 44...Bd7!?+/–) 45.Kc4+- h5 ½–½. Kocandrle,Jaroslav (2085) – Geiger,Walter (2050), IECG, 2006.

12.d4 Nbd7 13.cd5 Nd5 14.Nbd2 =.

12.Ne5 Nbd7 13.Nc6 Bc6 14.bc6 Nb8 15.Bf6 Bf6 16.cd5 ed5 17.Bb5 Qc7 (17...Qd6 18.Qa4=+) 18.Nc3= Bc3 (18...Rd8!? 19.Qa4 Be5=) 19.dc3+= Nc6 20.Qd5 Ne7 21.Qb3 Nf5 22.Bc4 Nd6 23.Bd5 c4 (23...b5 24.Ra1=) 24.Qb4+= b5 25.e4 Rb8 (25...Re8 26.Ra1=) 26.e5+= Nc8 (26...Nf5 27.e6 Qe7 28.ef7 Kf8 29.Qa5+/-) 27.e6+/- fe6?? (better 27...Nd6 28.ef7 Kh8+/-) 28.Be6+- Kh8 29.Qf8 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

11.Ne5 b6 12.0-0 =.

11.Ne5 Nd5 12.Nc4= Nd7 13.0-0 Bf6 (13...N7b6 14.d4=) 14.Nba3 (14.Nc3 b6=) 14...N7b6 (14...Qe7 15.Qc2=) 15.Qb3 (15.Qc2 Nb4 16.Bf6 Qf6+=) 15...Nc4 16.Nc4 Ba1 (16...Qe7 17.Bf3=) 17.Ra1+= Nb6 (17...Qf6 18.Ra7+=) 18.Nb6 Qb6 19.Qc4 Qd6 (19...Bd7 20.d4 cd4 21.Qd4 Qd4 22.ed4+/–) 20.d4 cd4 21.ed4 (21.Qd4 Qe7+=) 21...Bd7 (21...e5 22.de5 Qe5 23.Ra7=) 22.Rc1 h6 23.Qa4 Qf4 24.Rd1 Rc8 25.g3 Qe4 26.Bf1 Qd5 27.Bg2 Qb5 28.Qb5= Bb5 29.Bb7 Rb8 30.Bf3 Ba4 31.Rd2 Kf8 32.Kg2 Ke7 33.Be4 Kd6 34.f4 Rb4=+ 35.Kf3 f5 36.Bd3 Rd4 37.Ke3 e5 38.Bf5= Rd2 39.Kd2 ef4 40.gf4 Kc5 41.Ke3 Be8 42.Bd3 Kd5 43.Bf5 Bh5 44.Bc8 Bf7 45.Bf5 Be6 46.Bc2 Bh3 47.Bb3 Kd6 48.Kd4 Be6 49.Bc2 Bd5 50.Bf5 Ba2 51.Be4 Be6 52.Bf3 Bf5 53.Bd5 Bg4 54.Bc4 Be6 55.Bd3 Bd5 56.Bf5 Bb7 57.Bg4 g6 58.Bh3 h5 59.Ke3 Ke7 60.Kf2 Kf6 61.Ke3 Bd5 62.Bd7 Be6 63.Bb5 Bf5 64.h4 ½–½. Kesmaecker,Philippe – Scavo,Fernando, France, 1999.

11.Ne5 Nd5 12.Nc4= f6 13.0-0 =.

12.0-0 b6 13.d3 Bb7 14.Nbd2 Qc7 15.Qc2 Ra8 =.

12.0-0 b6 13.d3 Bb7 14.Nbd2 Qc7 15.Qc2 Ng4 16.Bc3 Ra8 17.h3 Nge5 18.Ne5 Ne5 19.f4 Nc4 20.Nc4 Bd5 (20...f6 21.Qe2=) 21.e4 Bc4 (21...Bb7 22.Qe2+=) 22.dc4 Rd8 23.Qe2 Qd6 24.Be5 Qd3 (24...Qd7 25.Qg4 f6 26.Ba1+=) 25.Qd3+/– Rd3 26.Ra1 f6 27.Bc7 Rd4 28.Ra4 Kf7 (28...Re4 29.Kf2+/–) 29.Bb6 Re4 30.g3 e5 (30...Re1 31.Kg2+/–) 31.Ra7 (better is 31.fe5 fe5 32.Bc7+/–) 31...ef4?? (better is 31...Ke8 32.Bc7 Rc4+/–) 32.Bc5+- fg3 33.b6 Rc4 34.Re7 Kf8 35.Ba3 (35...Ra4 36.Ra7 Ra3 37.Ra3+-) 1–0. pierre – losmik, ChessHere.com, 2005.

12.0-0 b6 13.d3 Bb7 14.Nbd2 Qc7 15.e4 Ng4 (15...Qf4 16.Bc3=) 16.Qe2 (16.h3 Ngf6=) 16...Bd6 (16...Rd8 17.Rd1=) 17.g3 (17.h3 Nge5=) 17...Nge5 (17...Ra8 18.d4=) 18.Bb3 (18.Ne5 Be5 19.f4 Ba1 20.Ra1 Rd8=) 18...Rd8 (18...Ra8 19.Nh4=+) 19.Ne1 (19.Rc1 Nf3 20.Nf3 Ra8=) 19...Be7 (19...Ng6 20.f4=+) 20.f4= Ng6 21.Nef3 Nf6 22.Ng5 h6 23.Nh3 Nf8 24.Nf3 Ne8 25.Ne5 f6 26.Nc4= Qd7 27.Bc2 Qb5 28.Rb1 Qa6 29.Nb6 Nd6 30.Nc4 Nb5 31.Bb3 ½–½. Teichmann,E – Rujevic,M, Melbourne, 1998.

12.0-0 b6 13.d4 =.

12.0-0 Qc7 13.Qe2 =.

13.Na3 Nc4 14.Nc4 Qd7 15.b6 =.

13.Na3 Nc4 14.Nc4 Bd7 15.Qb1 (15.Qb3 Nd5=) 15...Nd5 16.d4 Nb4 (16...f6 17.dc5 Bc5 18.Bd4=) 17.Rd1+= Qc7 (better is 17...cd4!? 18.Bd4 Qe8+=) 18.b6 Qc8 19.Nce5 (19.dc5 Bc5 20.Ng5 g6+-) 19...Rd8 (19...Ba4 20.Rc1+=) 20.Rc1 (20.dc5 Na6 21.Nf7 (21.Rd7?! Rd7 22.Nd7 Qd7+=) 21...Kf7 22.Qh7+-) 20...Na6+= 21.dc5 (better is 21.e4+=) 21...Nc5? (better is 21...f6 22.Nd7 Qd7=) 22.Bd4 Ba4 23.Nd3?? Nd3= 24.Rc8 Rc8 25.Bb2? Nb2?? 26.Qb2+/– Rc2 27.Qa1 Bf6 28.Nd4 (28...Bd4 29.ed4+/–) 1–0. Giudice,U – Ammendola,G, Cava de Tirreni, 1972.

13.Na3 Nfd5 14.Be2 =.

13.d3 Nc4 14.dc4 Nd7 15.Qc2 =.

13.d3 Nfd5 14.Nbd2 f6 15.Qe2 =.

13.d3 Nfd5 14.Nbd2 Bf6 15.Ne4 (15.Qb3 Be7+=) 15...Qe7 (15...Be7 16.Qe2+=) 16.Ne5 (16.Qc2 Ba1 17.Ra1 Nb4=) 16...Rd8 (16...Be5 17.Be5 Rd8 18.Qf3+=) 17.Qe2 (17.Nf6 Nf6 18.Qf3 Nfd5=) 17...Be5 18.Be5 f6 19.Bb2 e5 (19...f5 20.Ng3+=) 20.Ba3 Nc4 21.dc4 Nb4 22.Bb4 cb4 23.c5 Be6 24.Qb2 b3 25.Qc3 Qc7 26.h3 f5 27.Ng5 Bd5= 28.e4 fe4 29.Re1 Qe7 30.Ne4+= Rf8 31.Re2 Qe6 32.Ng3 Qf6 33.Nf1 e4= 34.Qf6 gf6 35.Rd2 Be6 36.Ng3 f5 37.Ne2 Rc8 38.Nd4=+ Rc5 (39.g4 Kf7 40.gf5 Bc4-+) 0–1. Labahn,Wolfgang – Krause,P, corr FRG–chT qual, 1991.

13.d3 Nfd5 14.Qe2 f6 =.

13.d3 Qd7 =.

13.d3 Bd7 =.

13.d3 Nfd7 =.

13.Be2 Nbd5 14.Nc3 b6 15.Nd5 ed5 16.Qc2 =.

13.Be2 Nbd5 14.Nc3 Nc3 15.dc3 Qc7 (15...b6 16.c4=) 16.c4+= Nd7 17.Qc2 Bf6 (17...b6 18.Bd3 f5 19.e4+=) 18.Bf6 (18.Bd3 h6+=) 18...Nf6 19.Rd1 (19.Qb2 Rd8+=) 19...Rd8 (19...e5 20.Ng5+=) 20.Rd8 Qd8 21.Qd3 Qd3 (21...Qc7 22.Ne5=) 22.Bd3 b6 ½–½. Sternik,Ryszard – Wojtunik,P, Olsztyn, 1985.

13.Be2 Nbd5 14.d4 Qa5 15.Nbd2 cd4 16.Bd4 Nc3 17.Bc3 Qc3 =.

13.Be2 Nfd5 14.Na3 f6 15.Nc4 (15.Qb3 Qd7=) 15...Bd7 (15...e5 16.Qc2=) 16.Qb1 (16.Qb3 Qc7=) 16...Nc4 (16...Nb4 17.Nb6 Qb6 18.Qe4=) 17.Bc4 Qb6 (17...Nb6 18.Bd3 f5 19.Be2+=) 18.Bd3 (18.d4 Nc7 19.dc5 Bc5=) 18...h6 (18...Kh8 19.Bh7 Bb5 20.Rc1=) 19.Qb3 Nb4 (19...Rd8 20.Bc4=) 20.Bc4+= Re8 (20...Kf7 21.Qa4=) 21.Qa4 (21.d4 Bb5 22.Be6 Kh8+=) 21...Na6 (21...Nd5 22.d4=) 22.Rb1 Nc7 The pressure on the isolated pawn grows 23.Bc3 (23.Qb3 Rd8+=) 23...Ra8 24.Qb3 Kh7 (24...Be8 25.Nh4+=) 25.h3 (25.d4 Be8+=) 25...Qd6 (25...Be8 26.d4+=) 26.d4 cd4? (26...Nd5 27.dc5 Qc5 28.Bd4+-) 27.Nd4?? (27.Bb4 Qb4 28.Qd3 f5 29.Rb4 Bb4 30.Qd4 (30.ed4?! Ra1 31.Kh2 Bd6 32.Ne5 Ra3+-; 30.Nd4?! Ra1 31.Kh2 Ra3+-) 30...Bb5 31.Bb5+-) 27...f5 (27...Nd5 28.Rd1 Nc3 29.Qc3+-) 28.Nc2 (28.Nf5!? ef5 29.Rd1 Nb5 30.Rd6 (30.Bb5?! Qe6 31.Bc4 Qc6+-) 30...Nd6 31.Be5+-) 28...e5+= 29.Bb4 Qf6 30.Rd1 Rd8 (30...Be6 31.b6 Bc4 32.Qc4+=) 31.Na3 (31.Be7 Qe7 32.Ne1 Na8+=) 31...Bb4= 32.Qb4 Be6 33.Be6?? (better 33.Rd8 Qd8 34.Qc5=) 33...Rd1-+ (33...Ne6?! 34.Rd8 Qd8 35.Nc4 Qd1 36.Kh2=) 34.Kh2 Qe6 35.Nc4 (35.Qc3 Qd6 36.Nc4 Nb5-+) 35...e4 36.Qc5 Ne8 (36...Rc1 37.Qc7 Rc4 38.Qf4-+) 37.b6 (37.Qb4 Rf1 38.b6 Rf2-+) 37...Rc1 38.Qb5 (38.Qe5 Qc4 39.Qf4 Qc5-+) 38...Rc4 39.Qa5 (39.Qb2 Qd6 40.g3 Qd1-+) 39...Qd6 (39...Rc2 40.Qe1-+) 40.g3 Qc5 41.Qa8 (41.Qc5 Rc5 42.g4-+) 41…Rc2 (41...Rc2 42.Qb8 Rf2 43.Kg1 Qe3 44.Qe8 Qe1) 0–1. Frosinos,Ioannis – Zvan,Ziga, Chania, 1998.

13.Be2 Nfd5 14.d4 c4 A) 15.Qc1 Bd7 16.e4 (16.Nc3 Qc7 17.Qb1 Ra8 18.Rc1 Ra5 19.Bd3 cd3 20.Nd5 Qc1 21.Qc1=) 16...Nc7 17.Nbd2 Bb5 18.Nc4 f5 19.ef5 Rf5 20.Re1 Nc4 21.Bc4=; B) 15.Ne5 B1) 15...Bd7 16.e4= Nf4 17.Nc3 Bf6 18.Nc4 Ne2 19.Qe2 Bd4 20.Rd1 Bc3 21.Bc3=; B2) 15...Bd6 16.Nd2 (16.Qc1 Qc7 17.Nc4 Bh2 18.Kh1 Nc4 19.Qc4 Bd7 20.e4 Ra8 21.ed5+=) 16...Qc7 17.Ne4 Be5 18.de5 Bd7 19.Qb1 c3 20.Rc1 Qe5 21.Nc3+-; B3) 15...Qe8 16.Nc4 (16.Nd2 Qb5 17.Nec4 Bd7 18.Ne5 Qa4 19.Qb1 Qb4 20.Nd7 Nd7 21.Qd3=; 16.e4 Nf4 17.Nc3 Bd7 18.Qd2 Bg5 19.Qb2 f6 20.Nd7 Qd7 21.Rd1=) 16...Qb5 17.Nbd2 Bd7 18.Ne5 Qa4 19.Qb1 Qb4 20.Nd7 Nd7 21.Qd3=; B4) 15...Qc7 16.Qc1 Bd7 17.e4 Ra8 18.Bb2 Nf6 19.Nc3 Bb4 20.Qe3 Bc3 21.Bc3=; C) 15.Qc2 C1) 15...Bd7 16.Nc3 (16.e4 Nf4 17.Nc3 f6 18.Qa2 Qc7 19.Qb2 Ra8 20.Re1 Na4 21.Na4=+) 16...Bd6 17.Rb1 f5 18.Ne5 Qc7 19.Nd5 ed5 20.Bc3 Be6 21.Bf3=; C2) 15...Nb4 16.Qc3 (16.Qd2 Bd7 17.Na3 N4d5 18.Nc4 Bb4 19.Qb2 Bb5 20.Nb6 Qb6 21.e4=; 16.Qb2 Bd7 17.d5 f6 18.de6 Be6 19.Rd1 Qc7 20.Nc3 Rd8 21.Rd8=; 16.Qc1 Bd7 17.Bc4 Qa8 18.Bc3 Rc8 19.Ne5 Nc4 20.Nd7 Qa5 21.Bb4=) 16...Bd7 17.e4 Bb5 18.d5 f6 19.Nd4 Bd7 20.de6 Bc6 21.Nd2+-; C3) 15...Qc7 16.e4 (16.Nc3 Bd7 17.Ne5 Bd6 18.Nd7 Qd7 19.Ne4 Rc8 20.Nd6 Qd6 21.e4=) 16...Nf4 17.Nc3 Bd7 18.Rd1 Bb4 19.Rb1 Bd6 20.Bf1 Ra8 21.Rc1=.

13.Be2 Nfd5 14.d4 cd4 15.Qd4 A) 15...f6 16.Nc3 (16.Qh4 e5 17.Rd1 f5 18.Qh5 e4 19.Nfd2 f4 20.Ne4 fe3 21.Bf3=; 16.Qe4 e5 17.Rd1 f5 18.Qc2 e4 19.Ne5 Be6 20.Nc3 Qc7 21.Bc4=; 16.Rc1 e5 17.Qh4 Qd6 18.Bd3 g6 19.Bc2 Bd7 20.Bb3 Kg7 21.Rd1=+; 16.Rd1 e5 17.Qh4 f5 18.Qh5 e4 19.Nfd2 f4 20.Ne4 fe3 21.Bf3=) 16...e5 17.Qe4 f5 18.Qc2 e4 19.Nd4 Nf4 20.ef4 Qd4 21.Rd1+=; B) 15...Bf6 16.Ne5 Nd7 17.Qe4 Nc5 18.Qf3 Qc7 19.Rc1 b6 20.Qg3 Ne4 21.Rc7=+.

13.Be2 Nfd5 14.d4 cd4 15.Bd4+= Bd7 (15...f6 16.Nc3 (16.Bd3 Nb4 17.Be4 Qd6 18.Nc3 f5 19.Bc2 Nd7 20.Bb3 Kh8 21.Ba7+=; 16.Qb3+= Qc7 17.Rd1 Rd8 18.g3 f5 19.Bd3 Bf6 20.Bf6 Nf6 21.Nc3+=; 16.Qd2 e5 17.Bb6 Nb6 18.Qa2 Kh8 19.Qc2 Be6 20.Bd3 Qc8 21.Bh7=) 16...e5 17.Nd5 Nd5 18.e4 Nf4 19.Bc4 Kh8 20.Be3 Bg4 21.Bf4+=; 15...Bf6 16.e4 (16.Qd3 Bd4 17.Qd4 Qc7 18.Rd1 Bd7 19.Bd3 Rc8 20.Qe4 Nf6 21.Qe5+=; 16.Qd2 Bd4 17.Qd4 Bd7 18.Rd1 Qc7 19.Bd3 Ra8 20.Qh4 h6 21.Qe4+=; 16.Re1 Re8 17.Bf6 Qf6 18.Qc2 e5 19.Bd3 Kh8 20.Rd1 Nb4 21.Qc5=) 16...Bd4 17.Qd4 Nf4 18.Qe3 Qc7 19.Rd1 e5 20.Bf1 Bg4 21.Rc1+=; 15...Qd6 16.Qb3 (16.e4 Nf4 17.Qc2 Rd8 18.Rd1 Ne2 19.Qe2 Qc7 20.Nbd2 Bd7 21.Ra1+=; 16.Qc2 Bd7 17.Qb2 f6 18.Rd1 Rd8 19.Kh1 Na4 20.Qb3 Qb4 21.Qb4=; 16.Qd3 Rd8 17.Rd1 f6 18.Qc2 Nb4 19.Qb3 N4d5 20.Bd3 Nb4 21.Be4+=; 16.Qd2 Rd8 17.Rc1 Nd7 18.Qb2 Bf6 19.Nbd2 Bd4 20.Qd4 Qa3 21.Ra1+=) 16...Rd8 17.Be5 Qc5 18.Rd1 f6 19.Bg3 Nb4 20.Nbd2 N4d5 21.Nc4+=; 15...Bd6 16.Nbd2 (16.Qd2 f6 17.Rd1 Qc7 18.e4 Nf4 19.Bf1 Nc4 20.Qc1 Nb6 21.Qc7+-; 16.Qc2 Qe7 17.Qb2 f5 18.Rd1 Rd8 19.Nc3 Nc3 20.Qc3 Nd5 21.Qd2+=) 16...f6 17.Ne4 Bb4 18.Qb3 Qc7 19.Bb6 Qb6 20.Bc4 f5 21.Neg5+-) 16.Qb3 (16.Nc3 Nc3 17.Bc3 Nd5+= 18.Bd4 Bd6 19.Qd3 Qe7 20.Rc1 Ra8 21.Qe4+=; 16.Qc2 Bf6 17.Rd1 Bd4 18.Nd4 Qh4 19.Nf3 Qb4 20.Rd4 Qa5 21.e4+=; 16.Qd2 f6 17.e4 Bb4 18.Nc3 Nc3 19.Bc3 Bc3 20.Qc3 e5 21.Qb3+=; 16.Qd3 f6 17.Rd1 e5 18.Bb6 Nb6 19.Nc3 Be6 20.Qe4 Qc8 21.Bd3=; 16.Bd3 Qc7 17.Qc1 Qd6 18.e4 Nb4 19.e5 Qb8 20.Be4 Rc8 21.Qd1=) 16...Bf6= 17.Ne5 (17.Bc5 Be7 18.Be7 Qe7 19.Rd1 Rc8 20.Qd3 Rc5 21.Qa3=) 17...Qe7 (17...Qc7 18.f4+= Rc8 19.Qd3 Qc2 20.Qc2 Rc2 21.Bd3=) 18.Nd2 Be5 (18...Ra8 19.Ne4 Be5 20.Be5 Ra4 21.Qc2+=) 19.Be5 Ra8 20.Nc4 (20.Rc1 f6 21.Bd4+=) 20...Nc4 21.Bc4 Nb6 (21...Ra3 22.Qb2 Nb6 23.Be2=) 22.Be2 (22.Bd3 Nd5+=) 22...Qa3 (22...Qg5 23.f4 Qg6 24.Rd1+-) 23.Qc2+- Qa2 24.Bb2 (24.Qd3 Rc8+-) 24...Rc8+= 25.Qd2 Qd5 (25...e5 26.Ra1 Qe6 27.e4+=) 26.Rd1 Qd2 27.Rd2 f6 28.h3 (28.f4 Be8+=) 28...Rc5 (28...e5 29.f4 ef4 30.ef4+=) 29.Bd4 (29.Kh2 Rd5 30.Rd5 ed5+=) 29...Rc1 30.Kh2 (30.Rd1 Rd1 31.Bd1 Nc4+=) 30...Nc4= 31.Bc4 Rc4 32.Bf6 Bb5 ½–½. Apgar,Robert F – Ryan,Randall J, US Amateur Team East, Parsippany USA (6), 2006.

13.Be2 Nfd5 14.d4 cd4 15.e4 d3 16.Qd3 Nf4 17.Qe3 Ne2 18.Qe2 Bd6 19.Qd2 f6 20.Rd1 Be7 21.Qc2+=.

13.Be2 Bd7 14.Qc2 =.

13.Be2 Ne4 14.Qc2+= Qd5 Black plans c4 15.Nc3 (15.Rd1 Ng5+=) 15...Nc3 16.Bc3 (worse 16.dc3 c4=+) 16...c4 (16...f6!?+=) 17.Rb1+- f5 (17...Rd8 18.Ba5 Qc5 19.Bb6 Qb6 20.Bc4+-) 18.Ba5 Bc5 (18...Qd6 19.Bb4 Qd8 20.Be7 Qe7 21.Bc4+-) 19.Bb6+- Bb6 20.Qc4 (20.Bc4 Qd6+-) 20...Qd6 (20...Bd7 21.d4+-) 21.d4 Bd7 (21...f4 22.Ne5+-) 22.Ne5 Rc8 23.Qb3 Kf8 (23...Ra8 24.Bc4 Ra3 25.Qd1+-) 24.h3 (24.Bc4 Ke8+-) 24...Ke7 (24...Ra8 25.Rc1+-) 25.Bf3 (worse 25.Nd7 Qd7 26.Bc4 Qd6+-) 25...Qb8 (25...Qc7 26.Qb4 (26.Nd7?! Qd7 27.Ra1 Kf7+-) 26...Kf6 27.Rb3+-) 26.Qb4 Qd6 27.Qd6 (27.Nc4 Qb4 28.Rb4 Bd8 29.Bb7 Rb8+-) 27...Kd6 28.Bb7 Rb8 (28...Rc2 29.g3+-) 29.Nd7 (29.Bf3 Ba7 30.Nc4 Kc7+-) 29...Kd7 30.Bc6 Kd6 31.Kf1 (31.g4 e5 32.de5 Ke5 33.f4 Kf6+-) 31...Rc8 (31...g5 32.g4+-) 32.Ke2 Rc7 (32...e5 33.de5 Ke5 34.f4 Ke6 35.g4+-) 33.Ra1 (33.g4 Ra7+-) 33...Ra7 34.Ra7 Ba7 35.Kd3 (35.f4 Bb6+-) 35...Bb6 (35...e5 36.f4 ed4 37.ed4+-) 36.f3 (36.g4 g5+-) 36...Ba7 (36...e5 37.f4 ed4 38.ed4+-) 37.e4 (37.g4 fg4 38.hg4 e5+-) 37...e5 38.de5 Ke5 39.ef5 Kf5 40.Be4 Kf4 41.Bh7 g5 42.Kc4 Ke5 (42...Kg3 43.f4 Kf4 44.Kd5+-) 43.g3 Bf2 44.h4 (44.h4 gh4 45.gh4 Bh4 46.Kc5+-) 1–0. Lipok,E – Heiduczek,J, Germany, 1992.

10.0-0 Qb6 11.c4 dc4 12.bc6 Nc6 13.Bc4 Na5 (13...Bd7 14.Nc3=) 14.Be2 Rd8 (14...Nc6 15.d4=) 15.d4 (15.Bd4 Qb4+=) 15...Bd7= 16.Ne5 (16.Nc3 Nc6=) 16...Bb5 17.Nc3 Be2 18.Qe2 Nd5 (18...Qa6 19.Rb1=) 19.Qh5 (19.Nd5 ed5 20.Bc3 Nc6+=) 19...g6= 20.Nd5 Rd5 (20...gh5?? 21.Nb6 Nc6 22.Nd3+-; 20...ed5?! 21.Qf3 f6 22.Nd3=) 21.Qf3 f6 22.Nd3 Rf5 23.Nf4 Kf7? (23...Nb3!? 24.Bc3 Qc7=) 24.e4 (better 24.d5!? ed5 25.g4 Rf4 26.Qd5 Qe6 27.Qe6 Ke6 28.ef4+-) 24...Rb5+= 25.Qh3 h5 26.Bc3 Nc4 (26...Rb1 27.Qe6 Qe6 28.Ne6+=) 27.Qd3 Nd6 (27...Nb2 28.Qc2 Nc4 29.e5+-) 28.Re1 Rb3? (better 28...f5!? 29.ef5 ef5+-) 29.e5 Nb5?? (29...f5 30.ed6 Qd6 31.Ne6 Qa3+-) 30.Qg6 Kf8 31.ef6 Rc3 32.Qg7 (32.Qg7 Ke8 33.Qe7) 1–0. Massudy (2470) – Radjabov2172 (2170), lichess.org, 2020.

10.0-0 Bd7 11.Nc3 Qc7 12.bc6 Nc6 13.d3 (13.Nb5 Qb6=) 13...Bb4 (13...Nb4 14.e4=+) 14.Nb5= Qa5 (14...Qd8 15.c3 Bc5 16.c4=) 15.Bf6 (15.c4 Be7=) 15...gf6 (15...Qb5 16.Ne5 Ne5 17.Be5=) 16.Nbd4 (16.d4 Ra8=) 16...Nd4 (16...Bc3 17.Nb3 Qc7 18.Nc5=) 17.Nd4 Ba4 (17...Bc3 18.Bh5=) 18.Qb1 (18.Bh5 f5=) 18...Rc8 (18...Bc3 19.Nf3=) 19.c4+= dc4 (19...Bd6 20.cd5 Qd5 21.Bf3+=) 20.dc4 Rd8 (20...Rc7 21.Qa2 Be1 22.Bd3+=) 21.Qe4+/– Qa8 (21...Rd7 22.Rb1+/–) 22.Qg4 Kh8 23.Qh4 Be7?? (better is 23...Kg7+/–) 24.Bd3+- Kg7 (24...f5 25.Qe7 Rd7 26.Qf6 Kg8 27.Qg5 Kh8 28.Bf5 Qd8 29.Qd8 Rd8+-) 25.Qh7 Kf8 26.Qh8# 1–0. Mauron,Regis – Brih,Touatia, Montigny op, 1999.

10.0-0 Bd7 11.Ne5 =.

10.0-0 Nbd7 11.c4 Qb6 12.cd5 (12.Nc3 dc4 13.Bc4 Rd8=) 12...ed5 13.Nc3 Bd6 (13...c5 14.Qc2=) 14.Qc2 Ne5 (14...Re8!?=) 15.Ne5+/– Be5 16.Nd5 (16.Na4 Qc7 17.Be5 Qe5 18.bc6+=) 16...Nd5 (better is 16...Bh2!? 17.Kh2 Nd5 18.bc6 bc6+=) 17.Be5+- cb5 18.Qb2 f6 (18...Qg6 19.Qb5 Rd8 20.Ra1+-) 19.Bd4 (19...Qe6 20.Qb5+-) 1–0. pcmvr (2560) – rhand (2255), net–chess.com, 2006.

10.0-0 Nbd7 11.c4 dc4 12.bc6 bc6 13.Bc4 c5 14.Qb3 Qb6 15.Qa2 (15.Qc2 Bb7=) 15...Bb7=+ 16.Nc3 Ra8 17.Qc2 Nd5 (17...Bf3 18.gf3 Qd6 19.Ne4 Ne4 20.fe4=+) 18.Nd5= ed5 19.Bd3 h6 (19...Qh6 20.Rb1 Bc6 21.Bf5=) 20.Rb1 Qc7 21.Bg7 Kg7 22.Qb2 Bf6 23.Qb7 Qb7 24.Rb7 Ra1 Black intends d4 25.Bf1 Ne5 26.Ne5 Be5 27.f4 Bf6 28.Rd7 d4 29.e4 Kf8 30.e5 Be7 31.Rc7 Rd1 32.d3 Rc1 33.Rc8 Kg7 34.Kf2 h5 (34...f6 35.Be2+/-) 35.Rc7 Bd8? (better 35...Kf8+-) 36.Rd7 Ba5 37.e6 Bd2 (37...Kf8 38.Rf7 Ke8 39.f5+-) 38.Be2 Be3 39.Kf3 Rh1 (39...Kf8 40.Rf7 Ke8+-) 40.e7 (40.e7 Rc1 41.e8Q Rf1 42.Bf1 Kh6 43.Qf7 Bf4 44.Qf6) 1-0. onur604 (2320) - yuhu (2255), Casual Rapid game, lichess.org, 2021.

10.0-0 Ne4 11.d3 Nd6 12.c4 (12.bc6 Nc6 13.c4 dc4 14.dc4 Qc7=) 12...cb5 13.cd5 ed5 14.Qb3 Nc6 (14...Be6 15.Na3=) 15.Nc3 The isolani on b5 becomes a target (15.Qd5 Be6 16.Qh5 g6=) 15...Be6 (15...d4!? 16.Nb5 de3 17.fe3 Qb6=) 16.Nd5+- (16.Nb5?! Qb6 17.Qb2 Bf6=) 16...Bd5 (16...Re8 17.Qb2 Bf8 18.Nf4+-) 17.Qd5 Bf6 (17...Qd7 18.Nd4+-) 18.d4 Re8 (18...Qe7 19.Bb5 Nb5 20.Qb5+-) 19.Bb5 (19.Rd1 Qe7+-) 19...Nb5 (19...Nb4 20.Qc5 Na6 21.Ba6 ba6 22.Qc6+-) 20.Qb5+- 1–0. DEFFM – daniromu, freechess.org, 2018.

10.Nc3 Nbd7 11.d4 Bd6 12.0-0 c5 13.Na4 cd4 14.ed4 b6 15.Ne5 Bb7 16.Bb2 Ne4 (16...Qc7 17.g3=+) 17.f3= Nef6 18.Qd3 Re8 19.c4 dc4 20.Nc4 Nf8 (better 20...Be7!?=) 21.Nab6+- Bd5 (21...Bc7 22.Na4 Nh5 23.Qe3+-) 22.Ra1 (22.g3 Ng6+-) 22...Bc7 23.Nd5 Nd5 24.g3 Ng6 25.Qb3 (25.Qd2 h5+-) 25...Bb6 (25...Qg5!? 26.Bc1 Qf6+-) 26.Ra6 e5 (26...Nge7 27.Qa3+-) 27.Nb6 Nb6 28.de5 (28.Ra7 Re6+-) 28...Ne5 29.f4?? (29.Qc3 f6+-) 29...Ned7? (better 29...Qd2 30.Be5 Qe2+=) 30.Bh5 (30.Bf3 Nf6 31.Be5 Qe7+-) 30...Re1 (30...Qe7 31.Kg2+-) 31.Kf2 Qe7 (31...Re7 32.Qd3 Re6+-) 32.Qc3 f6 (32...Nf6 33.Qe1 Qc5 34.Kg2 Qb5 35.Bf6 gf6+-) 33.Ba3 Qe4 34.Qe1 (34.Qe1 Qd4 35.Qe3 Qe3 36.Ke3+-) 1–0. DEFFM – GuestJHLH, freechess.org, 2019.

10.c4 Qa5 11.Bc3 Qb6 12.bc6 bc6 13.0-0 Ba6 (13...Nbd7 14.d4=) 14.d4 Nbd7 15.Nbd2 Rb8 (15...c5 16.Qc2=) 16.Qa4+= c5 17.Rb1 Qd6 (17...Qb1!? 18.Nb1 Rb1 19.Be1 Bc4 20.Bc4 dc4 21.Qc4 cd4 22.Qd4 Bb4+/–) 18.Rb8+/– Nb8 19.dc5 Qc5 20.Be5 Bd6 21.Nb3 Qc7 22.Bd6 Qd6 23.c5 Qd7 24.Qd7 Nfd7 (24...Nbd7?? 25.Ba6 Ne8 26.c6+-) 25.Ba6 Na6 26.c6 Ndb8 (26...Nb6 27.Kf1+=) 27.Nbd4 (27.Na5 Kf8+=) 27...Nc7 (27...Kf8 28.g4=) 28.Ne5 Kf8 29.Nd3 (29.f4 f6 30.Nd3 Ke7=) 29...Ke7 30.f4 f6 (30...Kd6 31.Nb4=) 31.Nb4-/+ Kd6 32.g4 e5 33.fe5+= fe5 34.Nf5+/– Kc5 35.Nd3 Kc6 36.Ne5 Kc5 37.Ng7 Nc6 38.Nf7 Kc4 39.Nh5 Kd3 40.Kf2 Ne8 41.Nf4 Kc4 42.g5 d4 43.Ke2 de3 44.Ke3 Ne7 45.Ke4 Kc5 46.Ne6 Kc6 47.Nf8 Nd6 48.Nd6 Kd6 49.Nh7 Ke6 50.h4 Kf7 51.Nf6 Kg6 52.Kf4 Nc6 53.h5 Kg7 54.Ne8 Kf8 55.Nd6 Ne7 56.g6 (56...Kg8 57.Kg5+-) 1–0. b4_player – opponent, gamecolony.com, 2008.

10.c4 Qa5 11.Bc3 Qd8 12.0-0 =.

10.c4 cb5 11.cb5= Qb6 12.Bd4 Qa5 (12...Qd8 13.0-0=) 13.Nc3 (13...Nbd7 14.Ne5=; 13.0-0 Nbd7+=). orane (2160) – HMBCHESS2, Live Game Caissa's Web, 2005.

10.c4 cb5 11.cb5= Bd6 12.Be5 =.

10.c4 cb5 11.cb5 Nbd7 12.0-0 Nc5 (12...Bd6 13.d4=) 13.d4 (13.Bf6 Bf6 14.d4 Ne4+=) 13...Nce4 14.Nc3 (14.Ne5 Qa5 15.Bb2 Nd7=) 14...Qc7 (14...Qb6 15.Ne5=) 15.Qb3 (15.Ne4 Ne4 16.Qb1 b6=) 15...b6 (15...Bd7 16.Rc1=) 16.Ne4 Ne4 17.Bb2 Bd6 (17...Bb7 18.Rc1 Qd6 19.Ne5=) 18.Rc1 (18.Ba3 Ba3 19.Qa3 Bd7+=) 18...Qb8 (18...Qe7 19.Qa4=) 19.Ba3+= Bb7 20.Bd6 Nd6 (20...Qd6 21.Bd3+=) 21.Ne5 (21.Qb4 Rc8 22.Rc8 Bc8+=) 21...Rc8 22.Qa3 (22.Qb1 Rc1 23.Qc1 f6+=) 22...Rc1 23.Qc1 Qc8 (23...f6 24.Nc6 Qc7 25.Bd3=). Dluhosch,Thomas – Habrich,Werner, corr FRG–ch, 1985.

11.Bc3 Qa4 12.Be5 Nbd7 13.Nc3 Qa5 14.Qa1 (14.Bf4 Ne4 15.Ne4 de4=) 14...Qb6 (14...Qa1 15.Ra1 Ne4 16.bc6 bc6 17.Nb1=) 15.Bg3 (15.Bf4 c5=) 15...Nc5 (15...Nh5 16.Bh4 Bh4 17.Nh4=) 16.bc6+= bc6 17.Rb1 Qd8 18.Ne5 Bd7 (18...Qe8!?+=) 19.Qa7+/– Qa8 20.Ra1 Qa7 (20...Qd8 A) 21.Nd7?! Ncd7 (21...Nfd7? 22.d4+-) 22.Qb7 Qc8+=; B) 21.d4 Nce4 22.Ne4 de4 23.Rb1+-) 21.Ra7 Bd6? (better is 21...Bd8 22.d4 Bb6+-) 22.Nd7 Ncd7 23.Bd6 Rc8 (23...Rd8 24.d4+-) 24.Ba6 Re8 (24...Rd8 25.d4+-) 25.Bb7 (25...Nb6 26.Bb4+-) 1–0. Beekes,Noud – Nash,Chris, SL–2006–0-00041, 2006.

11.Bc3 Qb6 12.bc6 Nc6 13.Bf6 Bf6 14.d4 =.

11.Bc3 Qc7 12.Be5 Bd6 13.Bf6 gf6 14.c4 c5 (14...cb5 15.cb5 Nd7 16.Qa4=) 15.cd5 (15.Nc3 dc4 16.Qa4 f5+=) 15...ed5+= 16.Qa4 Qd7 (16...c4!?+=) 17.Nc3+- b6 (17...Qf5!?+-) 18.Qh4+- Qf5 19.d4 (better 19.e4 Qg6 20.Nd5+-) 19...c4? (better 19...Nd7+-) 20.e4+- de4 21.Ne4 Be7 22.Bc4 Qg6 23.Re1 Bb7?! (23...Bg4 24.Nfd2 Bd8+-) 24.Bd3 1–0. gluv51 (2040) – rona81 (2015), gameknot.com, 2015.

11.Nc3 c5 12.d4 c4 13.Bb2 Nbd7 14.Qa1 Qa1 (14...Qb4 15.Qa2=) 15.Ra1+= Nb6 16.Ba3 Ba3 17.Ra3 Ne4? (better 17...Rd8!?+=) 18.Ne4+- de4 19.Ne5 Bd7 20.Nd7 Nd7 21.Bc4 Rc8 22.Bb3 Kf8 23.Ra7 Rc7 24.c4 Nb6 25.c5 Nd5? (25...Nc8 26.Ra8 b6+-) 26.Bd5 ed5 27.b6 (27.b6 Rc8 28.Rb7+-) 1-0. onur604 (2320) - siurbele (2210), Casual Rapid game, lichess.org, 2021.

11.Bb5 Qa5 12.Nc3 Nc6 13.Bd3 (13.Qb1 Qc7=) 13...Nb4 (13...e5 14.Bb5 d4 15.ed4 Nd4 16.Be2=+) 14.Qe2 Nd3 15.Qd3 b6 (15...Qa6 16.Qd4=+) 16.Rb1= Ba6 17.Qd4 Attacks the isolani on b6 17...Bc5 18.Qh4 Be7 19.Qg3 b5 (19...Ra8=) 20.Nd1 (better 20.Nd4!? Qa3 21.Ncb5 (21.Ndb5?! Bb5 22.Nb5 Qa2+=) 21...Bb5 22.Nb5+=) 20...b4 21.Ne5 (21.Bd4!?=+) 21...Rc8 22.Ng4 Ng4 23.Qg4 Bf8 24.c3?? (better 24.Rc1-+) 24...Qa2 25.Rc1 (25.Rb2 Qa1 26.f4 bc3-+) 25...b3 (better 25...Qd2 26.h3 Be2 27.Qe2 Qe2-+) 26.Bb2 Bd3 (better 26...Ba3 27.Qh5 Bb2 28.Nb2 Qb2-+) 27.Ra1+- Rb8 28.Ra2 ba2 29.Qa4 Bb1? (29...Be2+-) 30.Kf1 (30.Ba1 h6+-) 30...Bd6 31.Ke1 g6 32.d4 Bc7 (32...Bh2 33.g3+-) 33.Kd2 (33.h3 h6+-) 33...Rb7 (33...Bh2 34.Ba1+-) 34.Kc1 (better 34.h3 Bd6+-) 34...Bb8 (34...Bh2 35.c4 dc4 36.g3+- (worse 36.Qc4 Rc7 37.Qc7 Bc7=+)) 35.Ba1 (better 35.Qc6 Rb3 36.c4 dc4 37.Qc4+-) 35...Ra7 (35...Bh2 36.c4 Rb8+-) 36.Qe8 Kg7 37.Qb8 Re7 (37...Ra4 38.Qe5 Kg8 39.f3+-) 38.Qe5 (better 38.c4!? Be4+-) 38...f6 39.Qd6 Rf7 (39...Kf7 40.c4! dc4 41.Nc3+-) 40.Qe6 Bf5 (40...Be4 41.f3 Bd3+-) 41.Qf7! Kf7 42.c4! Be6 (42...dc4 43.Nc3 Combination) 43.cd5 (better 43.c5!? Bf5+-) 43...Bd5 44.e4! Bc6 (44...Be4 45.Nc3 Double attack (45.Nc3 Decoy)) 45.f3 Bd7 (45...Bb5 46.Kb2+-) 46.Ne3 Ke7 (46...Bb5 47.Kb2+-) 47.d5 f5 48.d6! Kf8 (48...Kd6 49.e5 Passed pawn) 49.e5 Ke8 (49...Be6 50.Nc2+-) 50.e6! Be6 51.Nd5 (better 51.Be5 Kd7 52.Kb2+-) 51...Bd7?? (better 51...Bd5 52.Be5 g5=+) 52.Nf6 Kf7 (52...Kd8 53.Nh7 Ke8+-) 53.Nd7 Ke6 (53...Ke6 54.Nf8 Kd6+-). black_bishop_88 (2420) - SPINidea (2440), lichess.org, 2020.

11.Bb5 Qa5 12.Nc3 Ne4 13.Nd4 e5 14.Nb3 Nc3 15.Na5 Nd1 16.Rd1 f6 17.Rb1 Bd8 18.Bc3 Ba5 19.Ba5 Nc6 20.Bc3 h6 21.Ba4 Rd8 22.d4 ed4 23.ed4 Ne7 24.Rb6 Kf7 25.Bb3 Rd7 26.Rb5 Rc7 (26...Ke6 27.Bb4 Nc6 28.Bc5+/-) 27.Ba5+/- Rc6 28.f3 Ra6 29.Bd8 Ke8 (29...Rd6 30.Be7 Ke7 31.Rd5+/- (worse 31.Bd5 Bd7 32.Rb7 Rd5-/+)) 30.Be7+- Ke7 31.Bd5 Ra1 32.Kf2 Rc1 33.c4 Rd1 (33...Rc2 34.Ke3 Rg2 35.Bb7 Bd7+-) 34.Ke3 (worse 34.Bb7 Bd7 35.Rb4 Rd4+-) 34...g5 (34...Re1 35.Kd2 Rh1 36.h3+-) 35.c5 f5 36.Bb7 f4 (36...Be6 37.Rb4+-) 37.Ke2 Bd7 38.c6 Rd4 39.cd7 Rd7 40.g3 fg3 41.hg3 Rd6 42.Be4 Kf6 43.Ke3 Ra6 44.f4 gf4 45.Kf4 Rd6 (45...Ke6 46.Rb7 Kd6 47.g4+-) 46.Rb7 Rd1 47.Rb6 Kg7 48.Rg6 Kf7 49.Rh6 Ra1 50.g4 Ra5 (50...Rf1 51.Ke5+-) 51.Rh7 Kg8 52.Rd7 (52.g5 Ra1 53.g6 Rd1+-) 52...Rc5 53.g5 Rb5 54.g6 Rc5 55.Bd5 Rd5 (55...Kf8 56.g7 Ke8 57.Rf7 Rc4 58.Bc4 Kd8 59.g8Q) 56.Rd5 Kg7 57.Kg5 Kg8 (57...Kf8 58.Rd7 Ke8 59.Rb7 Kf8 60.Kf6 Ke8 61.g7 Kd8 62.g8Q) 58.Kf6 Kh8 (58...Kf8 59.Rd8) 59.Rd8 1-0. onur604 (2320) - sumurtiban (2205), Casual Rapid game, lichess.org, 2021.

11.Bb5 Nc6 12.Nc3 Bd7 13.Bb2 Qa5 14.Qe2 Rc8 15.Ra1 Qb4 16.Na4 (16.Ra2 Ne4 17.Qf1 Bf6=) 16...Ne5 17.Bd7 (17.Be5? Bb5 (17...Qb5?! 18.Qd1=) 18.d3 Ba4-+) 17...Nf3 18.Qf3 Nd7 19.Bc3 Qb5 20.Qd1 e5 21.Qb1 Qc6 22.Nb2 Bf6 23.Nd3 d4 24.ed4 ed4 25.Bb4 Ne5 (25...Qc2?? 26.Qc2 Nb6 27.Qb3+-) 26.Ne5 (26.Qb3 Nd3 (26...Qc2?? 27.Qc2 Nc6 28.Bd6+-) 27.Qd3 Re8= (27...Qc2 28.Qc2 Rd8 29.Qe4+-)) 26...Be5=+ 27.d3 h5 (27...Qc2?? 28.Qc2 Rd8 29.Qc5+-) 28.Ra2 Bc7 29.Qb2 Qd5 30.Ra7 h4 31.Bd2 h3 32.gh3 (32.Qb7?? Rb8 33.Qb8 Bb8 34.gh3 Ba7-+) 32...b5 33.Ra1 Qf5 34.Kg2 ½-½. WG_Anonymous – Anonymous, lichess.org, 2021.

11.Bb5 Nc6 12.Be2 Qc7 13.Nc3 Rd8 (13...e5 14.Nb5 Qb8 15.d4=) 14.Nb5 Qb8 (14...Qa5 15.Bf6 Bf6 16.d4=) 15.Bb2 (15.Nbd4 Nd4 16.Bd4 Nd7=) 15...e5 16.d4 e4 17.Nd2 Bd7 18.c4 Na7 (18...dc4 19.Bc4 Ng4 20.g3+=) 19.Na7 Qa7 20.Qb3 Ba4 21.Ra1 Ra8 (worse 21...Bb3 22.Ra7 dc4 23.Rb7+- (worse 23.Nc4 Rb8+=; worse 23.Bc4 Bc4 24.Nc4 b5+=)) 22.Qa2 (22.Qc3 Qa6+=) 22...Bb4 23.Nf1 Qa6 24.Ng3 Bc2 25.Qa6 Ra6 26.c5 Ra1 27.Ba1 Kf8 (27...g6 28.Bf1=) 28.Nf5 Ba4 29.Bb2 (29.Kf1 Bd7 30.Ng3 Ba5=) 29...Nd7 30.f3 g6 (30...b6 31.fe4 de4 32.d5 Bc5 33.Bg7 Ke8 34.d6=) 31.Nd6 b6 (31...ef3 32.Bf3 (worse 32.gf3 b6-/+) 32...Bc6 33.Nc8=) 32.fe4 bc5 33.ed5 cd4 34.Nc4 de3 35.Bd4 (worse 35.Ne3 Bc5 36.Bc1 Bb3-/+) 35...f5 36.g3 (36.Ne3 Bc5 37.Bc5 Nc5=) 36...Bc2 37.Be3 (37.Ne3 Be4=) 37...Be4 38.d6 Kf7 39.Kf2 Nf6 (39...Ke6 40.Bd4-/+) 40.Bd4 Ke6 0–1. DEFFM – GuestPNFW, freechess.org, 2018.

11.Bb5 Nc6 12.Be2 Qc7 13.d4 Ne4 14.Nbd2 Nb4 15.Ne4 de4 16.Ne1 Bd6 17.g3 e5 18.c3 Nc6 19.Qb1 Bh3 (19...Bf5 20.c4 ed4 21.ed4=) 20.Ng2= f5 21.c4 ed4 22.ed4 e3?? (better 22...b6=) 23.c5+- ef2 (better 23...Be7+-) 24.Rf2 Be7 25.Nf4 Bg4 (25...Bf6 26.Qd1 Qe7 27.Nh3 Qe3+-) 26.Bg4 fg4 (26...Qa5 27.Ra2 Qb4 28.Bf5 Qb1 29.Bb1+-) 27.Ne6 Qd7 (27...Qb8 28.Nf8 Bf8 29.Qb3 Kh8 30.Qb7 Be7 (30...Qb7?? 31.Rf8) 31.Qc6 h6+-) 28.Nf8 Qd5 (28...Bf6 29.Nd7 Nd8 30.Qe4 Kf7 31.Re2 Be5 32.Ne5 Ke7 33.Nf7 Kd7 34.Qd5 Kc7 35.Qd6 Kc8 36.Qd8) 1-0. onur604 (2320) - yb2 (2355), Casual Rapid game, lichess.org, 2021.

11.Bb5 Bd7 12.Be2 Nc6 13.Ne5 Bd6 (13...Qc7 14.Nd7 Qd7 15.Nc3=) 14.Nd7 (14.f4 Qe7=) 14...Qd7 (14...Nd7 15.Nc3=) 15.Bf6+= gf6 16.Nc3 Kh8 (16...Ra8 17.Nb5+=) 17.Nb5 Rg8 (17...Ra8 18.d4+=) 18.Qa1 (18.Nd6 Qd6 19.c3 Ra8+=) 18...e5 (18...Be7 19.Qb2+=) 19.Nd6 Qd6 20.Rb1 d4 (20...Qd7!?+=) 21.Rb7+- de3 (21...Nd8 22.Rb2+-) 22.de3 Nd4 23.Bf1 (worse 23.ed4 Qc6 24.Bf1 Qb7 25.de5 Qe4 26.ef6 Qc2+=) 23...Qc6 24.Rf7 Nf3 25.Kh1 Qe6 26.Qa7 (26.gf3?! Qf7 27.Bd3 Qg7=) 26...Qh3 27.Rh7! (27.gh3?? Rg1) 27...Qh7 28.Qh7 Kh7 29.gf3 (29.Bd3 Kh6 30.gf3 Kg5+-) 29...Kg6 (29...f5 30.Bb5+-) 30.Bc4 (30.Ba6 f5+-) 30...Rc8 (30...Rd8 31.Bd3 f5 32.Kg2+-) 31.Bd3 (31.Ba6 Rc7+-) 31...f5 32.Kg2 Kf6 33.h4 Rg8 34.Kh3 Rc8 35.Kg2 Rc3 (35...Rg8 36.Kh2 Rh8 37.e4+=) 36.Kh3 (36.Kg3 Rc8 37.c4 Rg8 38.Kh2 Rd8+=) 36...Rc8 37.c4 Rd8 38.Bf1 Rd1 39.Kg2 f4 40.ef4 (40.Be2 Rc1=) 40...ef4 41.Be2 Rd2 (41...Rd6 42.Bf1=) 42.Kf1 Kg6 (42...Rd8 43.Kg2=) 43.c5 Kh5 44.c6 (44.Bb5 Rd1 45.Kg2 Kh4=) 44...Rc2 45.Bb5 Kh4 46.Ba4 Rc4 47.Bb5 Rc5 48.Ba4 Kg5 (48...Kh3!?-/+) 49.Kg2=+ Rc3 50.Bb5 Kf5 51.Ba4 Ke5 52.Kf1 (52.Kh3!? Rf3 53.Kg4 Rf2-/+) 52...Rf3 53.Ke2 (53.Bc2 Rc3 54.Ba4 Ra3-+) 53...Ra3 54.Bc2 (54.Bb5 Kd6-+) 54...f3 55.Kd2 Ra6 56.c7 (56.Ke3 Rc6 57.Bd3 Rc3-+) 56...Rc6 57.Bd1 (57.Ba4 Rc7 58.Ke3 Rc3 59.Kd2 Ra3-+) 57…Kf4 0–1. DEFFM – GuestGHMG, freechess.org, 2018.

11.c4 b6 12.d4 dc4 13.Nbd2 cd4 (13...Nbd7 14.Nc4 Bb7 15.Qc2=) 14.Bd4+= Bc5 (14...c3!? 15.Bc3 Bb7+=) 15.Bc5 bc5 16.Nc4 Qd1 (16...Nbd7!?+/-) 17.Rd1 (worse 17.Bd1 Nbd7+=) 17...Bb7 (17...Ne4 18.Rc1+-) 18.Nfe5+- Bd5 (18...Nd5 19.Rc1+-) 19.Na5 (19.Nb6 Bb3 20.Rc1 Nd5+-) 19...Ne4 20.Rc1 Rc8 21.f3 Nd6 (21...Nd2 22.e4 Nb3 23.Nb3 Bb3 24.Rc3+-) 22.e4 Ba8? (better 22...f6 23.Nd3 Nb7 24.ed5 Na5 25.de6 c4+-) 23.Rd1 Nb7 24.Nac4 f6 (24...Rd8 25.Ra1 f6 26.Nc6 (worse 26.Ra8 fe5 27.Ne5 Nd6+-) 26...Nc6 27.bc6+-) 25.Nb6 Re8 (25...Rd8 26.Nec4+- (26.Na8?! Rd1 27.Bd1 fe5+/-)) 26.Nec4 (26.Na8?! fe5 27.Bc4 Kf7+-) 26...Nd7 (26...Rd8+-) 27.Rd7 1-0. DEFFM – GuestFZPR, freechess.org, 2021.

11.c4 b6 12.Ne5 Nfd7 13.Nc6 Nc6 14.bc6 Nb8 15.cd5 ed5 16.Qa4 Qc7 17.Bb5 Bd6 18.f4 f5 19.g3 (19.Nc3 Be6=) 19...Be6=+ 20.Qa8 (20.Nc3=+) 20...Nd7 (20...Rc8!?-/+) 21.Qb7 (21.Qa4!? Nf6 22.Qa6=) 21...Qb7-/+ 22.cb7 Rf7 23.g4 fg4 (23...g6 24.gf5 gf5 25.Nc3=+) 24.Nc3=+ Nb8 25.f5 Bd7 (worse 25...Bf5 26.Nd5 Be4 27.Rf7 Kf7 28.Bc4=) 26.f6 Rf6 27.Nd5 (27.Rf6!? gf6 28.Bd7 Nd7 29.Nd5=+) 27...Rf1 (27...Bb5!? 28.Nf6 gf6-/+) 28.Bf1=+ ½-½. WG_Anonymous – Anonymous, lichess.org, 2021.

11.c4 dc4 12.Bc4 b6 13.d4 Bb7 14.Nbd2 Nbd7 15.Qc2 Bd5 (15...Qc7 16.Bd3=) 16.Bd3+= g6 17.e4 Bb7 18.Bb2 Qc7 19.Rc1 Rc8 20.Qb3 Qd8 21.Qd1 cd4 22.Rc8 Qc8 23.Nd4 Nc5 Increases the pressure on e4 24.Qf3 (24.Qc2 Qd7 25.e5 Ng4=+) 24...Nd3 (24...Qa8!?=+) 25.Qd3= ½-½. WG_Anonymous – Anonymous, lichess.org, 2021.

11.c4 dc4 12.Bc4 b6 13.Ne5 Bb7 14.Qb3 Bd5 15.Nc3 Bc4 16.Nc4 Nbd7 17.f4 Nd5 18.e4 Nc3 19.Qc3 Nf6 20.d3 Ne8 21.Bb2 Bf6 22.e5 Be7 23.Qb3 Qd5 24.Ra1 Nc7 25.Ra7 Qd8 26.Nb6 (26.Ne3!?=) 26...Qb8=+ 27.Rc7 Qc7 28.Nc4 Rd8 29.Kf1 Qd7 30.Na5 Qd3 31.Qd3 Rd3 32.b6 Rd1 (32...Rd2 33.Bc3 Rd8 34.Nc6=+) 33.Ke2=+ Rb1 34.Nc4 Bd8 35.b7 Bc7 36.Kd2 Kf8 (36...Rg1 37.Ba3 Rg2 38.Kd3 Rh2 39.Bc5=) 37.Kc2 Rg1 38.g3 Ke7 39.Ba3 (39.Nd6 Rg2 40.Kc1 Rh2-/+) 39...Rg2-/+ 40.Kd3 Kd7 41.Bc5 Kc6 (worse 41...Rh2 42.Ba7=+) 42.Bf8 Rh2 43.Na5 Kb6 44.Nb3 (44.Bd6 Rg2 45.Kc4 Rg3-+ (45...Ka5 46.Bc7 Ka4 47.b8Q Rc2 48.Kd3 Rc1 49.Bd6 Rd1 50.Kc2 Rd6 51.ed6 g5 52.d7 gf4 53.d8Q fg3 54.Qb3)) 44...Kb7 (44...Rg2 45.Nc5 Rg3 46.Kd4-+) 45.Bg7 Rg2 46.Nc5 Kc6 47.Ne4 Bb6 48.Bf8 Rb2 49.Bd6 (better 49.Kc4-+) 49...Rb3 50.Kc4 Re3 51.Ng5 Rg3 52.Nf7 Rf3 53.Ng5 Rf4 54.Kd3 h5 55.Ne6 Rg4 56.Be7 (56.Bf8 h4 57.Ng7-+) 56...Kd7 57.Bc5 Ke6 58.Bb6 Ke5 (better 58...h4 59.Ke2 h3-+) 59.Bc7 Kf5 60.Ke2 Ke4 61.Kf2 h4 (61...h4 62.Bb8 Rg8 63.Bc7 Rg7 64.Bh2 h3 65.Bg3 Rg8 66.Bd6 Rg2 67.Kf1 Kf3 68.Bf8 h2 69.Bc5 h1Q 70.Bg1 Qg1) 0-1. WG_Anonymous – Anonymous, lichess.org, 2021.

11.Bc4 cb5 12.Bb5 Qa5 13.Nc3 Bd7 14.Bd7 (14.Qb1 Rc8 15.Bd7 Nbd7=) 14...Nbd7=+ 15.0-0 Rb8 (15...b5 16.Ne2=+) 16.Nd4 (16.Qe2 Qh5=) 16...Bb4 (16...Qa6 17.Ndb5=) 17.Qb3 (17.Qf3 Ne5 18.Qg3 Bd6+=) 17...Nc5 (17...e5 18.Ndb5=+) 18.Qc4= Nce4?? (better 18...e5 19.Ndb5 Rd8=) 19.Ne4+- Ne4 20.Nb3 Qa3 (20...Qd5 21.Qb4 Rd8 22.d4+-) 21.Qe4 Qb3 (21...Bd6 22.Qg4 e5+-) 22.Qe5 (22.Qe5 Bf8 23.Qb8+-) 1–0. Feldman,Yevgeny – Dorosin,Neil S, Marshall Furity op, 1999.

11.Bc4 cb5 12.Bb5 Qb6 13.Nc3 Nbd7 14.0-0 Nc5 (14...Rd8 15.d4=) 15.d4+= Nce4 16.Bd3 Nc3 17.Bc3 Bd7 18.Ne5 Bc6 19.Qa1 Qc7 20.Rc1 Nd5 (20...Qd6 21.Nc6 bc6 22.Qa6+=) 21.Ba5+- b6?? (better 21...Qd6+-) 22.Be1+- (22.Nc6?! ba5 23.Ne7 Qe7 24.Qa5 Qh4+-) 22...Bb4 (22...Ra8 23.Qb1 Bc5 24.Nc6 (24.dc5?! Qe5 25.Bh7 Kh8 26.cb6 Bb7+-) 24...Qc6 25.Bh7 Kh8 26.Be4+-) 23.Bb4 (23.Nc6?! Be1 24.Nb4 Qc1 25.Qc1 Bb4+-) 23...Nb4 24.Bh7! (24.Nc6?! Nd3 25.Rc3 Qd7+-) 24...Kh7 25.Qb1 (25.Qb1 Nc2 26.Qc2 (26.Rc2?! Be4 27.Rc7 Bb1+-) 26...Kg8 27.Nc6+-) 1–0. DEFFM – GuestCYYY, freechess.org, 2018.

11.Bc4 cb5 12.Bb5 Bd7 13.Qa4 (13.Bd7 Qd7 14.Bf6 Bf6=) 13...Qb6 14.Nc3 Rc8 15.Bd7 Nbd7 16.0-0 Nc5 (16...Qa6 17.Qc2=+) ½–½. Pedersen,Erik (2410) – Sorensen,Bent (2300), DEN–chT, 1994.

11.Bc4 cb5 12.Bb5 Bd7 13.Be2 Bc6 14.0-0 Bf3 (14...b5!?=) 15.Bf3+= Nc6 16.d4 e5 (16...Qb6!?+=) 17.de5+- Qd1?? (better 17...Nd7+-) 18.Rd1+- (18.Bd1?! Nd7+-) 18...Ne8 19.Rd7 f6 (19...Bc5 20.Nd2 Bb4 21.Rb7 Bd2 22.Bc6 Ba5+-) 20.Rb7 fe5 (20...Ne5 21.Bd5 Kh8 22.Re7+-) 21.Bd5 Kh8 22.Bc6 Bf6 (22...Bd6 23.Nd2 Nf6+-) 23.Rb8 h5 (23...e4 24.Nc3+-) 24.Re8 Re8 25.Be8 Kh7 26.Bh5 g6 27.Bg4 Kh6 28.f4 Kg7 29.Be5 Be5 30.fe5 Kf7 (30...Kf8 31.Nc3 Kf7 32.Kf1 Kg7 33.e6 g5 34.Nd5 Kf8 35.e7 Kf7 36.e4 Kg8 37.e8Q Kg7 38.Qe5 Kg6 39.Qf6 Kh7 40.Bf5 Kg8 41.Ne7) 31.e6 (31.e6 Kf6 32.Nc3 g5 33.e4 Ke5 34.e7 Kd4 35.Nb5 Kc5 36.Be2 Kb4 37.e8Q Kb3 38.Qe5 g4 39.Qc3 Ka2 40.Bc4 Kb1 41.Na3) 1–0. DEFFM – GuestKTSS, freechess.org, 2019.

11.Bc4 Bd7 12.Nc3 =.

10.0-0 Nb6 11.d4 Bd7 12.Ne5 Qa8 13.Nc3 Qa5 14.Qd3 Ra8 15.Bb2 c5 (15...Qb4 16.Rb1=) 16.bc6 (16.dc5 Qb4 17.Rb1 Bc5=) 16...Bc6= 17.Ra1 Qb4 18.Ra8 (18.Rb1 Na4 19.Na4 Ra4=) 18...Na8 19.Nc6 (19.Bc1 Qa5 20.Bd2 Qa1 21.Bf1 Nc7=) 19...bc6 20.Nd1 Nb6 (20...Bd6 21.Qc3 Nb6 22.Qb4 (22.Qc6? Qe1 23.Bf1 Nc4-+) 22...Bb4 23.Bc3=) 21.Bc3 (21.Qc3 Ne4 22.Qb4 Bb4=) 21...Qa4 (21...Qb1 22.Be1=+) 22.g3 (22.Nb2 Qa3=+) 22...h6 (22...Nc4 23.Be1=+) 23.Kg2= Ne4 24.f3 Nc3 25.Qc3 Bb4 26.Qb2 Qa5 27.c3 Bd6 28.e4 f6 (28...c5 29.Qb5 Qb5 30.Bb5 cd4 31.cd4=) 29.Qc2 (29.Bd3 e5=) 29...Kf7 (29...c5 30.f4 Qa8 31.Bg4+=) 30.Bd3 (30.Nf2 c5=) 30...Nd7 (30...c5 31.ed5 Nd5 32.Bg6 Kg8 33.Qe4 Qa2 34.Nf2=) 31.Ne3+= c5? (better 31...Kg8!?+=) 32.ed5+- cd4?? (better 32...ed5 33.Nd5 cd4 34.cd4 Nf8+-) 33.de6 Ke6 (33...Kf8 34.cd4 Nb6+-) 34.Qb3 Ke7 35.Nf5 Kd8 36.Nd6 dc3 (36...Ke7 37.Nf5 Kd8 38.Nd4 Qb6+-) 37.Nb7 (37.Nb7 Ke7 38.Na5+-) 1–0. GuestWHLZ – GuestJGDX, freechess.org, 2018.

10.0-0 Nc5 11.d4 Nce4 12.Ne5 Nd7 13.Nd2 =.

10.d4 Nb6 11.Nbd2 Bd7 12.0-0 Qa8 13.Ne5 Be8 14.c4 (14.Bd3 Ne4+=) 14...dc4= 15.Ndc4 Nbd5 (15...Bb5 16.Nb6 Be2 17.Qe2 cb6 18.Rc1=) 16.Qb3+= Ne4 17.f3 (17.Bd3 Nd6 18.Nd6 cd6+=) 17...Nd6= Exerts pressure on the isolated pawn 18.Nd6 Bd6 19.Nc4 Be7 20.Bb2 Qa5?? (better 20...Qd8+=) 21.Ne5 (better 21.Na5 b6 22.Nc6 Bc6 23.bc6+-) 21...Qb4 (21...Qd2!? 22.Kf2 Bb5 23.Qb5 Qe3 24.Kg3 Qf4 25.Kf2 Qh2-+) 22.Qb4= Bb4 23.Kf2 f6 24.Nd3 Bd2 25.e4 Be3 (better 25...Nc3!? 26.b6 cb6=) 26.Kg3+- Nb6 27.Nc5 Na4?? (better 27...Bd7+-) 28.Na4+- 1–0. GuestYTVT – GuestHJNL, freechess.org, 2017.

10.d4 c6 11.0-0 cb5 12.Nc3 (12.Bb5!? Qa5 13.Nc3=) 12...b4-/+ 13.Na2 Ne4 14.Qb1 The isolani on b4 becomes a target 14...Qa5 15.Qb3 b5 (15...Ndf6!?-/+) 16.Rb1=+ Ba6 (16...Ndf6 17.Nb4 Bd7 18.Bd3=+) 17.Nb4= Nb6 (better 17...Bb7!?=) 18.Nc6+- Qa3 19.Qa3 (19.Bb2 Qd6 20.Ne7 Qe7+-) 19...Ba3+= 20.Bb5 (20.Rb5?? Bb5 21.Bb5 Ra8-+) 20...Bb5 21.Rb5 Nc4 22.Nfe5 g6 (better 22...Ne5!? 23.de5 Rc8+=) 23.Nc4+- dc4 24.Ra5 Bd6 (24...Bc1 25.d5 c3 26.f3 Be3 27.Kf1 Nd2 28.Ke2+-) 25.c3 (25.f3!? Nd2 26.e4+-) 25...Rc8 26.Ra6 Kg7 27.g3 Bf8 (27...Nd2 28.Kg2+-) 28.Kg2 Nf6 29.h4 Nd5 (29...Nd7 30.e4+-) 30.Ne5+- Rc7 31.Nc6 Rb7 (31...Rc8 32.e4 Nc7+-) 32.Ra2 (32.Na5 Rc7+-) 32...Rb3 (32...Rc7 33.Ne5+-) 33.Rc2 (33.Ne5!?+-) 33...Rb1 34.Bb2 Nb6 35.Ne5 f6 36.Nf3 Na4 37.Bc1 Be7 38.Nd2 (38.Nd2 Rb8 39.Nc4+-) 1–0. GuestCBMR – GuestKZQQ, freechess.org, 2017.

11.c4 b6 12.cd5 ed5 13.d4 c4 14.Nc3 Qc7 15.Qc2 Bb7 16.Nh4 Ne4 17.Ne4 Bh4 (worse is 17...de4 18.Nf5 Nf6 19.Qc4+/–) 18.Nc3 Be7 19.Bb2 Bd6 20.h3 Ra8 21.e4 de4 22.Ne4 Bh2 23.Kh1 Bf4 24.Rd1 (24.Bc4? Rc8 25.Bf7 Kf7 26.Qc7 Rc7-+) 24...Ra5 25.f3 (25.Nc3 Nf6=) 25...Rb5 26.Bc1 Nf6 (26...Rb4 27.Bf4 Qf4 28.Bc4+=) 27.Bc4 (27.Nf6 gf6 28.Bc4 Rg5+/–) 27...Rh5 (27...Ne4 28.Bf4 Nf2 29.Qf2 Qc4 30.Qg3+=) 28.Qe2 (28.Nf6 gf6 29.Bf4 Qf4+=) 28...Bc1 29.Rc1 Ne4 ½–½. Jaeger,Eric – Castilho,Miguel, corr WS/O/147 ICCF, 2007.

11.bc6 bc6 12.c4 Qa5 13.Nc3 dc4 14.Bc4 Nb6 15.Be2 Rd8 16.Nd4 Bb7 17.Bf3 Nc4 18.Qc2 Ne5 19.Be2 c5 20.Nb3 Qb6 21.Rb1 Ba8 22.f3 Nc6 23.Na4 Qb4 The backward pawn on d2 becomes a target 24.Nd4 cd4 (worse is 24...Nd4 25.Bd4 Qb1 26.Qb1 cd4 27.Qb5+=) 25.Rb4 d3 26.Qc1 Nb4 27.Bd1 Bc6 28.Bc3 Ba4 29.Ba4 Nbd5 30.Qb2 h6 31.Be5 Rc8 32.Kf2 Bb4 (32...Nb4!?+/–) 33.Bb3 Ba5 34.Qa2 Bb6 35.Qa6 Rd8 36.Bf6 gf6 37.Bd5 Be3 38.Ke3 Rd5 39.f4 Kg7 40.g4 Kg6 41.Qc8 Kg7 42.h4 Rd6 43.Qc7 Rd5 44.Qe7 e5 45.f5 Rb5 (45...e4+-) 46.g5 fg5 47.f6 Kg6 48.h5! Kh5 49.Qf7 1–0. Lorenc,Tomas (2125) – Vanek,Tomas Jr (2145), CZE–chT2b, 2005.

11.d3 Qa5 12.Nc3 =+.

11.d3 Qc7 12.c4 dc4 (12...Rd8 13.Nbd2=) 13.dc4 b6 14.Nbd2 Bb7 15.Qc2 Bd6 (15...Ng4 16.Bc3=) 16.Bd3 (16.Rd1 Ng4 17.h3 Ngf6=) 16...Ne5 (16...Rd8 17.Rd1=) 17.Ne5 (17.Be5 Be5 18.Ne5 Qe5=) 17...Be5 18.f4 (18.Be5 Qe5 19.Be2 Ne4=) 18...Ba1 19.Ra1 Ng4 (19...e5!? 20.f5 e4=) 20.Bh7+= Kh8 21.Be4 (21.Qd1 f5 22.h3 Ne3+=) 21...Ne3= 22.Qd3 Be4 23.Qe4 Nf5 24.Nf3 Rd8 25.Ng5 Kg8 26.g4 Ne7 27.Ra8 Kf8 28.Qe6!+/– fe6 29.Ne6 Kf7 30.Nc7 Rd4 31.Ra7+- Nc8 32.Rb7 Rc4 33.Nd5 Kg6 34.f5+- Kh6 35.Rc7?? Nd6?? 36.Rc6+- Kg5 37.Rd6 Rc1 38.Kf2 Kg4 39.Ne3 Kf4 40.Rb6 Rb1 41.Nd5 Kf5 42.Nc7 (42...Rb2 43.Ke3 Rh2 44.Rc6 Rh3 45.Kd2+-) 1–0. Bernstein,Osip – Denker,Arnold, New York, 1959.

12.Bc4 b6 =.

13.Na3= Qa5 14.Qb3 (14.Bb2 b6 (14...Nb6 15.Bd3 Qb4 16.Qc2 Rd8 17.Rb1 Qa4 18.Ra1 Qc2 19.Bc2 Nfd5 20.Bb3 Bd7; 14...Nd5 15.Qc2 Nb4 16.Qb3 Nb6 17.Be2 Qa4 18.Qd1 N4d5 19.Ne5 Qb4 20.Qc2 Na4; 14...Qb4 15.Qc2 Nb6 16.Rb1 Qa4 17.Bb3 Qe4 18.Qe4 Ne4 19.d3 Nd6 20.Rc1 Nd7; 14...Ne4 15.Qc2 Bf6 16.d4 Nd6 17.Bd3 Qc7 18.e4 Bd8 19.e5 Nf5 20.Bf5 ef5) 15.Qb3 Bb7 16.Ra1 Qb4 17.Nc2 Qb3 18.Bb3 Be4 19.Ra4 Ra8 20.Ra8 Ba8; 14.Qc1 Nd5 (14...b6 15.Bc3 Qa8 16.Qb2 Bb7 17.Be2 Qa4 18.Ra1 Ra8 19.d3 Qg4 20.Nc4 Qg6; 14...Qc7 15.Bd3 b6 16.Nc4 Bb7 17.Nfe5 Ra8 18.Bb2 Nd5 19.Qb1 f5 20.f4 Ne5; 14...Qa8 15.Be2 Qa4 16.Bd1 Qb4 17.Bc3 Qg4 18.Qb2 Ne4 19.Ne5 Qf5 20.Nd7 Bd7; 14...Qa4 15.Bb2 Ne4 16.Bd3 f5 17.Nb1 b6 18.Bc4 Ndf6 19.Ne5 Nd5 20.d4 Bf6) 15.Bb2 N7b6 16.Bd3 Na4 17.Be5 f6 18.Bg3 Nb4 19.Bg6 Bd7 20.h3 Ra8) 14...Nb6 (14...Nd5 15.Bb2 N7b6 16.e4 Nb4 17.Be2 Na4 18.Be5 Bd7 19.Bf4 Nb6 20.Ra1 Ra8; 14...Qb4 15.Qa2 Qa4 16.Bb3 Qa8 17.Nc4 Qa2 18.Ba2 Nd5 19.Bb3 N7f6 20.Nfe5 Bd7; 14...Qc7 15.Bd3 b6 16.Nc4 Bb7 17.Nfe5 Ra8 18.Bc3 Nd5 19.Bb2 Nb4 20.Be2 Ne5) 15.Bc3 Qa4 16.Ra1 (16.Qa4 Na4 17.Ba5 Nb2 18.Ne5 Nd7 19.Nf3 b6 20.Bc3 Nc4) 16...Nfd5 (16...Qb3 17.Bb3 Nbd5 18.Bb2 Bd7 19.Ne5 Ra8 20.Nd7 Nd7) 17.Be5 (17.Bb2 Bd7 (17...Qb4 18.e4 Nf6 19.d3 Rd8 20.Qc2 Nc4) 18.Ne5 Qb4= (18...Ra8 19.Nd7 Qb3 20.Bb3 Nd7) 19.Nd7 Nd7 20.e4 Bf6; 17.Qa4 Na4 18.Be5 Bd7 19.Nc2 Ra8 20.Bg3 Be8) 17...Qb4 (17...Qb3 18.Bb3 Bd7 19.e4 Nf6 20.d3 Ra8) 18.e4 f6 (18...Nf6 19.Qc2 Bd7 (19...Nc4 20.Nc4 Qb5) 20.Bc3= Qa4) 19.Bg3 (19.Bd5?? ed5 (19...Nd5?! 20.Qb4 Nb4 21.Bc3-/+) 20.Qb4 cb4-+; 19.ed5 fe5 20.Qa2 (20.Qd3 Rd8) A) 20...Nc4?! 21.Nc4 (21.Qc4? e4 22.Ne5 Bf6-+) 21...Qb5 22.d6+=; B) 20...e4=+; C) 20...Rd8=+) 19...Bd7 (19...Nc4 20.Qb4 Nb4) 20.ed5 Ra8 21.Qb4 (21.Re1!? Qb3 22.Bb3 Ra3 23.de6 Bb5 24.Bc2=) 21...cb4-/+ 22.de6 Nc4 23.ed7 Na3 24.Nd4 (24.Rc1 Rd8 25.Re1 Rd7 26.Re3-+) 24...Rd8-/+ 25.Nc6 Rd7 (25...bc6?? 26.bc6 Nc2 27.Ra5 Rd7 28.cd7+-) 26.Ne7 Re7 27.Kf1 Re6 28.f3 (28.Bf4 Rb6-/+) 28...Rb6 (28...Nb5?! 29.Rb1 Re7 30.Rb4=) 29.Ra2 Rb5 30.d3 Nb1 31.Ke1 (31.Rb2 Nc3-/+) 31...Nc3 32.Rb2 b3 33.Kd2 Na4 34.Rb1 Kf7 35.Bd6 g5 36.g4 (36.f4 g4-/+) 36...b2 (36...Rb6 37.Bg3-/+) 37.Kc2 Ke6 38.Ba3 Ke5 (38...Kd5 39.Re1-/+) 39.Be7 (39.h3!?-/+) 39…Rb6-+ 0–1. Trokenheim,Marek (2175) – Duchene,Klaus (2170), RSS7E basic–28, 2010.

13.Na3= b6 A) 14.Be2 Bb7 (14...Qc7 15.Nc4 Bb7 16.Nfe5 Ra8 17.Bd3 Bd5 18.Bc3 Ne5 19.Be5 Qd8 20.Qe2 Nd7; 14...Nd5 15.Nc4 Bb7 16.Qc2 Qc7 17.Nfe5 Ra8 18.Bh5 Ne5 19.Be5 Qd7 20.Rb1 Qd8; 14...Ne4 15.Nc4 Bb7 16.Qc2 Bd5 17.Bd3 f5 18.Nfe5 Ne5 19.Be5 Nd6 20.f4 Nb5; 14...Re8 15.Nc4 Bb7 16.Qc2 Qc7 17.Nfe5 Ra8 18.Bb2 Ra2 19.Qb3 Ra8 20.f3 Nd5) 15.Nc4 Qc7 16.Nfe5 Ra8 17.Bd3 Bd5 18.Bc3 Ne5 19.Be5 Qd8 20.Qe2 Nd7; B) 14.Bd3 Bb7 (14...Qc7 15.Nc4 Bb7 16.Nfe5 Ne5 17.Be5 Qd7 18.Qb3 Rd8 19.Be2 Bd5 20.d3 Qb7; 14...Nd5 15.Nc4 Bb7 16.Qb1 Qc7 17.Nfe5 Ra8 18.Bh7 Kf8 19.Nd7 Qd7 20.Qb3 Ra7; 14...g6 15.Nc4 Bb7 16.Qc2 Bf3 17.gf3 Qa8 18.Kg2 Qd5 19.Bc3 Qg5 20.Kh1 Ra8; 14...Re8 15.Nc4 Bb7 16.Qc2 Qa8 17.Be2 Bd5 18.Bb2 Qb7 19.Ra1 Ra8 20.Ra8 Qa8; 14...Qe8 15.Nc4 Bb7 16.Bb2 Qa8 17.Be2 Bd5 18.Qc2 Qb7 19.Ra1 Ra8 20.Ra8 Qa8) 15.Nc4 Qc7 16.Nfe5 Ra8 17.f3 Bd5 18.Qc1 Bd6 19.Nd6 Qd6 20.Nd7 Nd7.

13.Na3= Qc7 A) 14.Be2 b6 (14...e5 15.Nc4 e4 16.Nfe5 Nb6 17.Nb6 Qb6 18.f3 ef3 19.Rf3 Be6 20.Rg3 Ra8; 14...Nb6 15.Nc4 Nc4 16.Bc4 Bd7 17.Be5 Bd6 18.Bf6 gf6 19.Qa4 e5 20.Bd5 f5; 14...Rd8 15.Nc4 b6 16.Nfe5 Bb7 17.f3 Nd5 18.Qb1 Ra8 19.Bd3 N7f6 20.Bb2 Nb4) 15.Nc4 Bb7 16.Nfe5 Ra8 17.Bd3 Bd5 18.Bc3 Ne5 19.Be5 Qd8 20.Qe2 Nd7; B) 14.Qc2 b6 (14...Nd5 15.Qb3 N7b6 16.Bd3 f6 17.Nc4 Bd7 18.Nh4 Bd6 19.Nd6 Qd6 20.Bb2 Nb4) 15.Bd3 Bb7 16.Nc4 Bd6 17.Nd6 Qd6 18.Nh4 Ra8 19.f4 Bd5 20.Bb2 c4; C) 14.Qb1 b6 (14...Qa5 15.Qb3 Nd5 16.Bd3 Qb4 17.Rb1 Qb3 18.Rb3 N7f6 19.Ne5 Bd7 20.Nd7 Nd7) 15.Bd3 Bb7 16.Nc4 Bd6 17.Nd6 Qd6 18.Be2 Ra8 19.h3 e5 20.Bc3 e4; D) 14.Bb2 e5 (14...b6 15.Be2 Bb7 16.Nc4 Ra8 17.Nfe5 Bd5 18.Qc2 Bd6 19.Nd6 Qd6 20.Nd7 Nd7; 14...Nd5 15.Qb3 N7f6 16.Ne5 Rd8 17.Be2 Ne4 18.Nac4 f6 19.d3 Nd2 20.Nd2 fe5) 15.d3 Bd6 16.b6 Qb6 17.Nb5 Bb8 18.Qc2 Qc6 19.Rd1 Re8 20.Qb3 Re7; E) 14.Bd3= b6 (14...Rd8 15.Nc4 b6 16.Bc3 Bb7 17.Qc2 Bd6 18.e4 Be7 19.Re1 Ra8 20.Nfe5 Ra7) 15.Nc4 Bb7 16.Nfe5 Ra8 17.f3 Bd5 18.Qb1 Bd6 19.Nd6 Qd6 20.f4 Bb7.

13.Na3= Nd5 A) 14.h3 b6 (14...Qa5 15.Qb3 N7b6 16.e4 Nb4 17.Be2 f5 18.ef5 N6d5 19.Re1 Rf5 20.Nc4 Qd8; 14...N7b6 15.Qb3 Bd7 16.Bb2 Qc7 17.Bd3 Ra8 18.Nc4 Nc4 19.Qc4 Ra5 20.Qg4 Bf6; 14...N7f6 15.Be5 Nd7 16.Bb2 Bf6 17.Qc2 Qc7 18.Ra1 b6 19.Be2 Nb4 20.Qb1 Bb7; 14...Re8 15.Qc2 Nb4 16.Qb1 Nb6 17.Be2 Bd7 18.Ne5 f6 19.Nd7 Qd7 20.Nc4 N6d5; 14...Bf6 15.Qb3 Qa5 16.Nc2 Qb6 17.e4 Nf4 18.Bf6 Nf6 19.Qe3 Ng6 20.Ra1 e5) 15.Bd3 Nb4 16.Be2 Bb7 17.Nc4 Qc7 18.Nfe5 Nf6 19.Bf3 Bd5 20.Bc3 Ra8; B) 14.Qb3 N7f6 (14...N7b6 15.Bb2 Bd7 16.Ne5 Qc7 17.Bd3 Ra8 18.Nac4 Nc4 19.Bc4 Qd6 20.Rc1 Be8; 14...Qa5 15.Bd3 Qb4 16.Rb1 N7b6 17.Nc4 Qb3 18.Rb3 Nc4 19.Bc4 Bd7 20.Ra3 f6; 14...Nb4 15.d4 Nf6 16.Rd1 Nbd5 17.Bd3 Qa5 18.dc5 Bc5 19.Nc4 Qb4 20.Qb4 Bb4; 14...Re8 15.Bb2 N7f6 16.Be2 Qa5 17.Nc4 Qb4 18.Qb4 cb4 19.Ra1 Rd8 20.Nfe5 Nd7; 14...b6 15.Bd5 ed5 16.Qd5 Nf6 17.Qd8 Rd8 18.Ne5 Rd2 19.Nac4 Rc2 20.Nb6 Be6) 15.Bb2 Ne4 16.Bd3 f5 17.Nc4 Nb4 18.Nfe5 Bg5 19.Be4 fe4 20.Ba3 Be7; C) 14.Qc2 Nb4 (14...b6 15.Be2 Nb4 16.Qb1 Bb7 17.Nc4 Qa8 18.Qb3 Qa7 19.Nfe5 Ne5 20.Be5 Ra8; 14...Qc7 15.Bd3 Nb4 16.Bh7 Kh8 17.Qb1 Nf6 18.Bc2 Qa5 19.Bb2 Bd7 20.Bb3 Bb5; 14...Qa5 15.Bb2 Nb4 16.Qc3 Bf6 17.Qb3 Nd5 18.e4 Bb2 19.Qb2 N5b6 20.e5 Na4; 14...N7f6 15.Ne5 Qc7 16.Bb2 Bd7 17.Ra1 Ra8 18.Be2 Nb4 19.Qb1 Be8 20.d4 b6; 14...Re8 15.Bb2 Nb4 16.Qb3 Nb6 17.Be2 Bd6 18.d4 cd4 19.Bd4 N4d5 20.Nc4 Nc4) 15.Qb1 Qa5 16.Bb2 Bf6 17.Nc2 Nd5 18.Bf6 N7f6 19.Qb2 Bd7 20.Ra1 Qc7; D) 14.e4 N5f6 (14...Nb4 15.Bc3 Nf6 16.Re1 Qc7 17.Qb3 Rd8 18.g3 b6 19.Nc2 Bb7 20.Be5 Qd7) 15.Qc2 Qc7 16.h3 b6 17.Bc3 Bb7 18.Bd3 Ra8 19.Nc4 Nh5 20.g3 Bf6; E) 14.Bb2 b6 (14...Bf6 15.Qb3 Bb2 16.Qb2 b6 17.Ra1 Bb7 18.Be2 Qf6 19.Qf6 N5f6 20.Nc4 Ra8; 14...Qa5 15.Qc2 Nb4 16.Qc3 Bf6 17.Qb3 Nd5 18.e4 Bb2 19.Qb2 N5b6 20.e5 Na4; 14...N7b6 15.Qb3 Bd7 16.Ne5 f6 17.Ng6 Re8 18.Bd3 Nb4 19.Be2 Bd6 20.f4 Qc7; 14...N7f6 15.Ne5 Nd7 16.Nf3 N7f6 17.Ne5 Nd7 18.Nf3 N7f6 19.Ne5 Nd7 20.Nf3 N7f6; 14...Bd6 15.e4 N5b6 16.Qa1 e5 17.Ne5 Ne5 18.Be5 Be5 19.Qe5 Re8 20.Qf4 Be6) 15.Be2 Bf6 16.Qb3 Bb2 17.Qb2 Qf6 18.Qf6 N7f6 19.Nc4 Bd7 20.Nd6 Ra8.

13.Nc3 A) 13...Qc7 A1) 14.Bb2 Nb6 (14...Bd6 15.Qe2 Nb6 16.Ra1 Nc4 17.Qc4 Bd718.Na4 Nd5 19.Nc3 Nb6 20.Qe2 f5) 15.Qe2 Nc4 16.Qc4 b6 17.Ne4Ne4 18.Qe4 Bb7 19.Qg4 g6 20.Ne5 Bf6; A2) 14.Qe2 Nb6 (14...Rd8 15.Bb2 Nb6 16.Bd3 c4 17.Bc2 Nfd518.Be4 Nb4 19.Ba3 f5 20.Bb4 Bb4) 15.Bb2 Nc4 16.Qc4 Bd6 17.Ra1Bd7 18.Na4 Nd5 19.Nc3 Nc3 20.Bc3 Qb6; A3) 14.Qc2 b6 15.Bb2 Bb7 16.Ra1 Bd6 17.h3 Ra8 18.Ra8 Ba8 19.Qd1Bb7 20.Na4 Bd5; B) 13...Bd6 B1) 14.Qc2 Qc7 (14...Nb6 15.Na4 Na4 16.Qa4 Qe7 17.Bd3 e518.Bc3 Nd5 19.Be5 Be5 20.Qe4 Bh2) 15.Ne4 Ne4 16.Qe4 Nb6 17.Bc3Nc4 18.Qc4 Re8 19.Ra1 e5 20.d3 Be6; B2) 14.Qb3 e5 (14...Qc7 15.Bb2 b6 16.Ra1 Bb7 17.Qc2 Bf3 18.gf3Bh2 19.Kg2 Be5 20.f4 Bc3; 14...b6 15.Be6 Ne5 16.Bd5 Bf5 17.Ne2Nd5 18.Be5 Be4 19.Bd6 Qd6 20.Ra1 Bf3; 14...Nb6 15.Na4 Nbd516.d4 cd4 17.Bd4 Qe7 18.Rd1 Ne4 19.Qc2 f5 20.Ne5 Rd8) 15.Bd3Nb6 16.Ne4 Ne4 17.Be4 Qc7 18.Nh4 Be6 19.Qc2 Ra8 20.Nf5 Ra2; B3) 14.Bb2 Qc7 (14...Nb6 15.Be2 e5 16.Qc2 Qe7 17.Bd3 c4 18.Be2Re8 19.Ra1 e4 20.Nd4 Qe5; 14...b6 15.Qe2 Bb7 16.Ra1 Qc7 17.h3Ra8 18.Ra8 Ba8 19.Bb3 Bb7 20.d3 Ne5) 15.Qe2 Nb6 16.Bd3 Bd717.Ra1 c4 18.Bc2 Nbd5 19.g3 e5 20.Nh4 Nc3; B4) 14.Qb1 Nb6 (14...Qc7 15.Ne4 Ne4 16.Qe4 Nb6 17.Be2 f518.Qc2 e5 19.d4 ed4 20.ed4 c4) 15.Be2 e5 16.Bb2 Qe7 17.Ne4 Bf518.Nf6 Qf6 19.Bd3 Bd3 20.Qd3 Qe6; B5) 14.Qe2 b6 (14...e5 15.Bd3 Re8 16.e4 Nf8 17.Bb2 Ne6 18.Nd5Nd5 19.ed5 Nf4 20.Qe4 f5; 14...Nb6 15.Bd3 Nbd5 16.Bb2 Nb417.Bc4 e5 18.e4 Re8 19.Ra1 Be6 20.Be6 Re6; 14...Qa5 15.Bd3 Rd816.Ne4 Ne4 17.Be4 Nb6 18.Be5 Be5 19.Ne5 f6 20.Nf3 e5; 14...Qc715.Bd3 b6 16.Ne4 Bb7 17.Bf6 Nf6 18.Nf6 gf6 19.Ra1 Ra8 20.Ra8 Ba8; 14...Qe7 15.Bb2 b6 16.Ra1 Bb7 17.Ra7 Ne5 18.Ne5 Be5 19.f4 Bb820.Ra1 e5) 15.Bb2 Bb7 16.Ra1 Qb8 17.h3 Qc7 18.Bb3 Ra8 19.Ra8Ba8 20.d3 Bb7; C) 13...b6 C1) 14.Bb2 Bb7 (14...Qc7 15.Qe2 Bb7 16.Ra1 Ng4 17.e4 Nde518.Ne5 Ne5 19.d3 Rd8 20.g3 Bf6; 14...Bd6 15.Qe2 Bb7 16.h3 Bf317.Qf3 Ne5 18.Qe2 Bc7 19.Rd1 Qd6 20.f4 Nc4) 15.d4 Qc7 16.d5 ed517.Nd5 Nd5 18.Bd5 Bf6 19.Bb7 Qb7 20.Bf6 Nf6; C2) 14.Qc2 Bb7 (14...Qc7 15.Bb2 Bb7 16.Ra1 Bd6 17.h3 Ra818.Ra8 Ba8 19.Be2 Bb7 20.Qa4 Ne5; 14...Re8 15.Bb2 Bb7 16.Ra1Qc7 17.Bd3 c4 18.Ne4 Rc8 19.Nf6 Nf6 20.Rc1 Bd6; 14...Ng4 15.Bb2Bb7 16.Ne4 Qc7 17.h3 Nge5 18.Ne5 Ne5 19.Qc3 Be4 20.Qe5 Qe5;14...Qe8 15.Ne4 Bb7 16.Nf6 Nf6 17.Ne5 Nd5 18.Bb2 Nb4 19.Qb3 Bd520.d3 f6) 15.Bb2 Bd6 16.Ra1 Qc7 17.h3 Ra8 18.Ra8 Ba8 19.Be2 c420.Qa4 Bf3; C3) 14.Qe2 Bb7 (14...Qc7 15.Bb2 Bb7 16.h3 Ra8 17.Rd1 Ra518.Bb3 Ne5 19.Ne5 Qe5 20.d4 cd4) 15.Rd1 Qc7 16.h3 Bd6 17.Bb2Rd8 18.d4 Bf3 19.Qf3 cd4 20.Rd4 Be5; C4) 14.Re1 Bb7 (14...Qc7 15.Bb2 Bb7 16.h3 Ra8 17.Qe2 Ne518.Ne5 Qe5 19.Nd5 Qb2 20.Ne7 Kf8; 14...Bd6 15.d4 Bb7 16.d5 Qe717.Qd3 ed5 18.Nd5 Bd5 19.Bd5 Nd5 20.Qd5 Rd8) 15.d4 cd4 16.Nd4Ne5 17.Bb3 Qc7 18.f4 Nc4 19.Qe2 Rc8 20.Rd1 h5; C5) 14.d4 cd4 (14...Bb7 15.d5 ed5 16.Nd5 Nd5 17.Bd5 Qc7 18.e4Bd5 19.Qd5 Rd8 20.Ne5 Ne5; 14...Bd6 15.Bb2 Bb7 16.Re1 Qe7 17.h3cd4 18.Nd4 Rc8 19.Nc6 Bc6 20.bc6 Ne5) 15.Nd4 Qc7 16.Nc6 Bd617.f4 Bb7 18.Qe2 Ra8 19.Bb2 Bc5 20.Bd3 Bc6; D) 13...Nb6 D1) 14.Qe2 Nc4 (14...Bd7 15.Bb2 Nc4 16.Qc4 Qa5 17.Ne5 Qb418.Qd3 Qb2 19.Rb1 Qa3 20.Nd7 Rd8; 14...Qc7 15.Bb2 Bd7 16.Ra1Nc4 17.Qc4 Qd6 18.d3 Nd5 19.Nd5 ed5 20.Qb3 Bf5; 14...Qd6 15.Bd3Rd8 16.Bc2 e5 17.Ne4 Qd5 18.Nc3 Qe6 19.Ne4 Ne4 20.Be4 f5)15.Qc4 b6 16.Bb2 Bb7 17.d3 Qc7 18.Ra1 Ra8 19.Ra8 Ba8 20.e4 Ne8; D2) 14.Qb3 Nc4 (14...Bd7 15.Na4 Ne4 16.Nb6 Qb6 17.d3 Nf618.Ne5 Ra8 19.d4 Qc7 20.Rc1 Be8; 14...Qd6 15.Na4 Nc4 16.Qc4 Nd717.Bb2 b6 18.Qg4 f6 19.Nh4 Bb7 20.Ng6 Rf7) 15.Qc4 b6 16.Bb2 Bb717.d3 Qc7 18.Ra1 Ra8 19.Ra8 Ba8 20.e4 Ne8; D3) 14.Be2 Qd6 (14...Bd6 15.Bb2 e5 16.Qc2 Qe7 17.Ne4 Ne418.Qe4 f5 19.Qh4 Qh4 20.Nh4 Na4; 14...Qc7 15.Qc2 Bd7 16.Ne4 Ne417.Qe4 Nd5 18.Be5 Qb6 19.Bd3 g6 20.Qg4 Kh7; 14...Bd7 15.Qc2 Bd616.Bb2 c4 17.Ra1 Qc7 18.h3 e5 19.Ra7 Qb8 20.Ra5 Re8; 14...Re815.Qc2 Nbd5 16.Nd5 ed5 17.Bf6 gf6 18.Ra1 Qb6 19.g3 Bd7 20.Qd3Qe6; 14...Nbd5 15.Ne5 Qd6 16.Nc4 Qc7 17.Qb1 b6 18.Rc1 Rd819.Bf3 Bb7 20.Ne4 Ne4) 15.Qc2 Bd7 16.Na4 Na4 17.Qa4 Nd5 18.Be5Qb6 19.Ra1 f6 20.Bb2 Bd6.

13.Bd3 Nd5 A) 14.Bb2 Nb4 (14...b6 15.Na3 Bb7 16.Nc4 Nb4 17.Be2 Bf6 18.d4 cd4 19.Nd4 Ne5 20.Ba3 Qd5; 14...N7f6 15.Nc3 Nb4 16.Bc4 b6 17.Qe2 Bb718.Ra1 Qc7 19.h3 Ra8 20.Ra8 Ba8; 14...Qa5 15.Nc3 Nb4 16.Be2 Qc717.Qb3 b6 18.Ra1 Bb7 19.Qc4 Bf6 20.Ra7 Qb8; 14...Qc7 15.Qb3 Nb416.Be2 b6 17.Rc1 Bd6 18.d4 Bb7 19.dc5 bc5 20.Nbd2 Rb8) 15.Be2 Bf616.Qb3 b6 17.Na3 e5 18.d4 ed4 19.ed4 Bb7 20.dc5 bc5; B) 14.Nc3 Nb4 15.Bc4 b6 16.Na2 Na2 17.Ba2 Bb7 18.Bc3 Bf6 19.Bc4Bc3 20.dc3 Qc7; C) 14.h3 Nb4 (14...Qa5 15.Nc3 Nb4 16.Be2 Qc7 17.Bb2 b6 18.Qb3 Bb719.Ra1 Ra8 20.Ra8 Ba8; 14...Qc7 15.Na3 Nb4 16.Bb1 b6 17.Nc4 f518.Qe2 Nd5 19.e4 Nf4 20.Qe3 Bf6; 14...b6 15.Na3 Nb4 16.Be2 Bb717.Nc4 Qc7 18.Nfe5 Nf6 19.Bb2 Ra8 20.Bf3 Bd5; 14...Re8 15.Na3 Nb416.Be2 Nb6 17.Nc4 f6 18.d4 N6d5 19.Bb2 Bd7 20.b6 Nb6; 14...N7b615.Nc3 Nc3 16.dc3 c4 17.Bc2 Bd7 18.Qb1 Qc7 19.Rd1 Ra8 20.Nd4 Nd5)15.Be2 b6 16.Na3 Bb7 17.Nc4 Qc7 18.Nfe5 Nf6 19.Bf3 Bd5 20.Bc3 Ra8; D) 14.Bc2 Qc7 (14...N7f6 15.Ne5 Bd7 16.Nc3 Nc3 17.dc3 Bb5 18.c4Qd1 19.Rd1 Ba6 20.Bc3 Rd8; 14...Qb6 15.Nc3 Nb4 16.Bb3 Nf6 17.Ne5Bd7 18.Qe2 Qc7 19.f4 Bd6 20.Qf3 Ra8; 14...c4 15.Bd4 Qa5 16.Nc3 Nc317.Bc3 Qb5 18.d3 Nc5 19.dc4 Qc4 20.Qd4 Qd4; 14...Qa5 15.Nc3 Nb416.Bb3 Bf6 17.Qb1 Rd8 18.Qe4 Qa3 19.Rb1 Nb6 20.h3 h5; 14...Bf615.Nc3 Qa5 16.Qe2 Rd8 17.Qc4 b6 18.Bb2 Qb4 19.Qb3 Qb3 20.Bb3 Nb4)15.Nc3 Nb4 16.Qb1 Nc2 17.Qc2 b6 18.Bb2 Bb7 19.Ra1 Ra8 20.Ra8 Ba8; E) 14.Na3 Nb4 (14...N7f6 15.Ne5 Bd7 16.Qf3 Qc7 17.Nd7 Qd7 18.Nc4Qb5 19.Rb1 Qd7 20.Bf1 Rd8; 14...Qa5 15.Qb3 Qb4 16.Rb1 N7f6 17.Ne5Bd7 18.Nac4 Qb3 19.Rb3 Ra8 20.Ra3 Ra3; 14...b6 15.Nc4 Bb7 16.Qb1f5 17.Qb3 Qc7 18.Nfe5 Ra8 19.f4 Kh7 20.Bb2 Nb4; 14...N7b6 15.Ne5Nb4 16.Be4 f5 17.Bf3 Bf6 18.Nac4 Nc4 19.Nc4 Bd7 20.Bf6 Qf6) 15.Bb1Qa5 16.Qb3 Nb6 17.Ne5 N6d5 18.f4 Rd8 19.Be4 Nf6 20.Bf3 Nfd5.

11.c4 dc4 12.Bc4 e5 13.d3 Qe7 14.Nbd2 Nb6 15.Bb3 Bd7 16.Nc4 Nc4 17.Bc4 c6 18.bc6 Bc6 19.e4 b5 20.Bb3 Bb7 21.Qd2 Nd7 22.Rb1 Nc5 23.Ba2 Bc6 24.Qc3 (24.Bd5 Bd5 25.ed5 Ra8=) 24...Qa7 (24...Ra8 25.Qc2+=) 25.Bd5 (25.Bb3 Re8+= (worse is 25...Nb3 26.Qc6 Rd8 27.Bc3=)) 25...Bd5+= 26.ed5 Qa2 27.Nd2 (better is 27.Rb5!? Ra8 28.Bb2+=) 27...Ra8 28.Bb2 (better is 28.f4 f6 29.fe5 fe5 30.Bb2-/+) 28...Qd5 29.Ne4 (29.d4 Na4 30.Qf3 Qf3 31.gf3 Nb2 32.Rb2 ed4 33.Rb5 Rd8-+) 29...Nd3 30.Nd6 Qd6 31.Rd1 Nb2 (31...Nb2 32.Rb1 Nd3-+) 0–1. Schaar,Joerg (1940) – Ziebarth,Susanne (1810), remoteschach.de, 2006.

11.d4 Nb6 12.Nbd2 Bd7 13.Qb1 Qe8 (13...Qe7 14.c4 dc4 15.Nc4 Nc4 16.Bc4=) 14.c4 dc4 15.Nc4 Nc4 16.Bc4 Nd5 17.Ne5 Qe7 (17...f6 18.Nd7 Qd7 19.Qb3+=) 18.e4 (18.Qe4 f5 19.Qf3 Nb6+=) 18...Nb6 19.Nd7 (19.Bd3 Qh4+=) 19...Qd7 20.Bd3 g6 (20...Bf4 21.g3 Bg5 22.Qc2+=) 21.Qb3 Ra8 22.d5 Ra3 23.Qb2 Threatening mate: Qg7 23...e5 24.Qc2 Na4 25.Be2 Qe7 26.Bc4 Qh4 (26...Bb4 27.Rc1=) 27.Kh1 (27.g3 Qg5=) 27...Qf4 28.f3 Qe3 29.Rd1 h5 (29...f6 30.Rf1=) 30.Qc1 (30.Rf1 Nb6=) 30...Qc5 (30...Qc1 31.Rc1 h4 32.Bf1=) 31.Bf1= Qc1 32.Rc1 h4 (32...f6 33.h4=) 33.Re1 (33.h3 f6=+) 33...Kf8 (33...f6 34.Rc1=+) 34.Rc1 f6 35.Be2 Re3 36.Bf1 Ke7 37.Rd1 (37.Kg1 Bc5 38.Kh1 Kd6=+) 37...f5-/+ 38.ef5 gf5 39.Bd3 (39.h3 Nc3 40.Bc3 Rc3-/+) 39...f4 (39...e4 40.fe4 fe4 41.Bc2-/+) 40.Bf5=+ Nb6 41.Be4 Nd7 (41...Rb3 42.Bd3-/+) 42.Bd3 Bb4 43.Kg1 (43.Bb2 Nc5 44.Bf1 Kd6-/+) 43...Kd6-/+ 44.Bb2 Nc5 Black is in command 45.Bg6 Na4 46.Ba1 Ra3 47.Bc2 Nb6 48.Bd3 (48.Kh1!? Nd5 49.Be4 c6-+) 48...Bc5 49.Kh1 Bd4 50.Bd4 ed4 51.Bc2 Kc5 (51...Ra2 52.Bb1 Ra1 53.g4 hg3 54.hg3 Nd5 55.Kh2-+) 52.d6 cd6 (52...Kd6?! 53.Rd4 Kc5 54.Rd1-/+) 53.Bd3 (53.Kg1 Nc4 54.Rb1 d3-+) 53...d5 54.Kg1 Nc4 55.Be2 Rb3 (55...Kb5?! 56.Rd4 Kc5 57.Rf4-/+) 56.Kf2 Rb5 57.Rc1 (57.g3 fg3 58.hg3 h3-+) 57...Rb2 58.Ke1 b5 59.Ra1 (59.h3 b4-+) 0–1. Pilz,Erhard – Felkel,Siegfried, TT–19 ETC, 2005.

11.d4 Nb6 12.Nbd2 Bd7 13.c4 dc4 14.Nc4 (14.Qb1 c6 15.Bc4 Nc4 16.Nc4 Qe7 17.Nd6 Qd6 18.Bc3=) 14...Bb5 (14...Nc4 15.Bc4 c6 16.Bd3 cb5 17.e4 Nh5 18.e5=) 15.Nb6 Be2 16.Qe2 cb6 17.e4 Be7 (17...Bf4 18.Rb1=) 18.Bb2 (18.Rc1=) 18...Qc7 19.Ne5 Rc8 20.Ra1 b5 21.Nd3 (21.Qb5 Ne4) 21...b4 22.Qf3 b5 23.Re1 Nd7 (23...Qd8 24.Rb1+=) 24.Qh5 Qb7 25.Qg4 Bf6 26.Nf4 Rc2 27.Nd3 Qc7 28.Rb1 (28.Ra1 Rd2 29.e5 Be7-/+) 28...Qc4 (28...Rc4 29.Qd1-/+) 29.Qd1 Bg5 30.f4 Be7 31.Rc1 b3 32.h3 Nb6 33.Ne5 Rc1 34.Qc1 Qc1 35.Bc1 Bb4 36.Kf2 Bd2!! 37.Bb2 Na4 38.Ba1 Bf4 39.Nd3 Bd6 40.Ke2 Ba3 41.Ne5 b2 42.Bb2 Bb2 43.Nc6 Kf8 44.Kd3 Ba1 45.g4 f6 46.h4 e5 47.Ke3 Bd4 48.Nd4 ed4 49.Kd4 Kf7 50.e5 h5! (50...h5 51.gh5 f5-+) 0–1. Buczinski,Henryk – Felkel,Siegfried, corr TT–19, 2006.

11.d4 Nb6 12.Qd3 Bd7 13.Nbd2 c6 14.bc6 Bc6 15.Bb2 Ne4 16.Ba3 Ba3 17.Qa3 Nd2+=.

11.d4 Re8 12.Nbd2 e5 (12...c5 13.bc6 (13.dc5 Nc5 14.c4 e5 15.cd5 e4 16.Nd4 Nd5 17.Bc4 Nb6=) 13...bc6 14.c4= Ba6 15.c5 Be2 16.Qe2 Bc7 17.Bc3 e5=; 12...Nb6 13.Ne5 Nfd7 14.Bd3 Qh4 15.f4 f6 16.Nef3 Qh5 17.c4 dc4=) 13.de5 (13.Nc4 e4 14.Nd6 cd6+= 15.Nd2 Qc7 16.Qb1 Nb6 17.Rc1 Bg4=) 13...Ne5= 14.Be5 (White gets the initiative) 14...Be5 15.Ne5 Re5 16.Nf3 Re8 17.Qd4 Qd6 18.Ra1 Bf5 19.Qa7 Bc2 (19...b6 20.Nd4 Bg4 21.Bd3+=) 20.Qb7+/– g6?? (better is 20...Be4 21.Nd4 Qc5+/–) 21.Ra6+- Qe7 22.Qc6 Ne4 (22...Bf5 23.Qf6 Qf6 24.Rf6+-) 23.Qc2 Nf2 24.Kf2 Qe3 25.Kf1 d4 26.Ra4 Rd8 27.Qc7 Re8 28.Nd4 Re4 29.Ra7 Rf4 30.Nf3 Qe4 31.b6 (31...Rf6 32.b7 Qb1 33.Kf2 Qb6 34.Qb6 Rb6 35.Ra8 Kg7 36.b8Q Rb8 37.Rb8+-) 1–0. pierre – elffe, internet, 2008.

11.Nd4 c5 12.bc6 bc6 13.Nc6 Qc7 14.Nd4 Bh2 15.Kh1 Be5 16.Nb5 Qb6 17.d4 Bb8 =+.

12.Bb2 Qf6 13.Nbd2 Nd2 14.Qd2 Rd8 15.Ra1 c5 16.bc6 bc6 17.c4 dc4 +=.

12.c4 dc4 13.Qc2 f5 14.Bc4 Nb6 15.Be2 Nd5 16.Nc3 Nec3 17.Bc3 Bd7 =.

12.Nbd2 Nd2 13.Qd2 Nf6 14.Bb2 c6 15.Ra1 cb5 16.Bb5 Bd7 17.Bd3 Qb6 +=.

12.Qd3 Qf6 13.c4 Rd8 14.Rc1 Kh8 15.Bb2 c5 16.Nc3 Qf5 17.Rd1 Ndf6 +=.

12.Bd3 Qf6 13.c4 Qg6 14.c5 Be7 15.Qc2 b6 16.c6 Ndf6 17.Ne5 Qh5 +/–.

10.0-0 Nd6 11.Na3 Bd7 12.Qb1 =.

10.0-0 Nd6 11.Na3 Qe8 12.Qb1 f6 13.d4 Nd7 (13...Ne4 14.Bb2=) 14.c4 dc4 (14...Qh5 15.cd5 ed5 16.Qc2=) 15.Nc4+= Nc4 16.Bc4 Nb6 17.Bd3 Qh5 18.e4 (18.Bc3 Nd5 19.Bd2 Bd6+=) 18...f5 (18...Bd7 19.Rc1 Rc8 20.Bc3+=) 19.ef5 (19.Qc2 fe4 20.Be4 Bd6+=) 19...Bd6 (19...ef5 20.Re1 Bd6 21.Bc3+=) 20.Qb3 Kh8 21.Re1 ef5 22.Bc3 Re8 (22...Bf4 23.d5 Qf7 24.Ne5+=) 23.Qa2 (23.Re8!? Qe8 24.Ng5+=) 23...Re1= 24.Be1 Qe8 (24...f4!?=) 25.Ba5+= Be6 26.Qe2 Qc8 27.Bb6 (27.Ng5 Bg8+=) 27...cb6+/– 28.Qe3 (28.Nd2 Qc1 29.Nf1 Qc8+/–) 28...Kg8 29.h4 Kf8 (29...Bd5 30.Ne5+/–) 30.h5+/– Bf7 (30...h6 31.Nh4+/–) 31.Nh4 (31.Qg5 h6 32.Qf5 Qf5 33.Bf5 Bh5+/–) 31...f4 32.Qe4 (32...Qc1 33.Kh2+/–) 1–0. Woelfelschneider,Peter – Baer,Werner, ETC, 2005.

10.0-0 Nd6 11.Nc3 Nd7 =.

10.0-0 f6 11.d3 Ng5 =.

10.0-0 f6 11.Nd4 e5 12.Nb3 Be6 13.d3 (13.f4 Bd6=) 13...Nd6 (13...Nc5 14.Nc5 Bc5 15.Nc3=) 14.d4 (14.Nc5 Bf7=) 14...Nd7=+ 15.Nc3 c6 16.bc6 bc6 17.Qb1 (17.Na4 Nb7=+) 17...Qc7 18.Qd1 Rb8 19.Qd2 (19.Bg4 Bg4 20.Qg4 f5=+) 19...Nc4 (19...Nb6 20.Nc5 Bc8 21.e4=+) 20.Bc4 dc4 (Black gets strong initiative) 21.Nc1 ed4 22.Qd4 (Opening the d–file gets Black a lot of play) 22...Rd8 (22...Nf8 23.N1e2=) 23.Qd1 (23.Qh4 Nc5=) 23...Ne5=+ 24.Qe2 (24.Qh5!?=+) 24...Ng4-/+ 25.g3 Qa5 26.Bb2 Ba3 27.Nd1? Bb2-+ 28.Nb2 Qc3 29.Rd1 Rb8 30.Na4 Qa3 31.Nc5 Qc5 32.Qf3 Ne5 33.Qg2 Bg4 34.Rf1 Nf3 35.Kh1 Qf5 (36.e4 Qh5-+) 0–1. Hasler,Ueli – Grimm,Wolfgang (1835), CiF, 2005.

10.0-0 Bf6 11.Bf6 Qf6 +=.

10.d3 Nc5 11.0-0 =.

10.d3 d4?? 11.de4+- e5 (11...de3 12.fe3 Nd7+-) 12.ed4 Nd7 (12...ed4 13.Qd4 Qd4 14.Bd4+-) 13.0-0 (13.de5 Bb4 14.Nbd2 Re8+-) 13...ed4 14.Qd4 Nf6 15.Bc4 b6 (15...Qd4 16.Bd4 Rd8 17.Nc3+-) 16.e5 Nh5 (16...Qd4 17.Nd4 Ne4 18.Nc6+-) 17.Qe4 Be6 18.Nc3 g6 (18...Qc8 19.Nd5 Bc5 20.Bd4 Bd5 21.Bd5 Bd4 22.Qd4+-) 19.Rd1 Qc8 20.Nd5 Bc5 (20...Re8 21.Nd4+-) 21.Bd4 Re8 22.Bc5 bc5 23.Ng5 1–0. Schirmer,Michael – Grimm,Wolfgang, DESC, 2005.

10.d3 Nd6 11.c4 dc4 12.dc4 Nd7 13.0-0 b6 14.Qc2 Bb7 15.Nbd2 Bf6 16.Bd3 Ba1 (16...h6 17.Rd1+=) 17.Ra1 (< 17.Bh7 Kh8 18.Ra1 f5 19.Bf5 ef5-/+) 17...f5 18.Qb2 (18.Ra7 Qf6+=) 18...Kf7 (18...Qe7 19.Ra7+=) 19.Ra7+= Qf6 20.Qc2. PeterRs – winugly123, ChessWorld.net, 2008.

10.d3 Nd6 11.c4 f6=.

10.d3 Nd6 11.c4 Bf6 12.Nbd2 Ba1 (12...Re8 13.0-0+=) 13.Qa1+= dc4 (13...f6 14.Qb2+=) 14.dc4 f6 (14...Nd7 15.0-0+=) 15.c5 (White gets the initiative) 15...Nf7 16.0-0 Qd5 (16...Qe7 17.Rc1 Nd7 18.Qc3+/–) 17.Rc1+/– Ne5 18.Nd4 Nf7 (18...g5 19.Qa5 b6 20.Qa7+-) 19.Qa7 e5 20.N4b3 (20.N4f3 Be6+-) 20...Be6 21.Bc4 Qd7 22.Be6 Qe6 23.Qb7 Rc8 24.Ra1 Qd7 (24...Qe8 25.Ra7+-) 25.c6 Qe8 26.Nc4 f5 27.Nc5 f4 28.Rd1 Rd8 29.Rd8 (better is 29.Rc1 Rc8 30.e4+-) 29...Qd8 30.h3 fe3 31.fe3 (31.Ne3?! Nd6 32.Qa8 Nb5+-) 31...Ng5 32.b6 Nh3 33.gh3 Qd1 34.Kf2 Qc2 35.Kf3 (better is 35.Kg3 Qg6 36.Kf3 Nc6 37.Qc8 Kf7 38.bc7 Qf6 39.Ke2 Ne7+-) 35...Qd1 36.Ke4 Qh1 37.Kd3 Qf1 38.Kc3 Qc1 39.Kb3 Qd1 40.Kb2 Qe2 41.Ka3 Qc4 42.Qb8 Kf7 43.Qc7 Kg6 44.Qd6 Kf7 45.c7 Qc1 46.Kb4 Qb2 47.Ka5 Qa1 48.Na4 Qe1 49.Ka6 Qf1 50.Kb7 Qf3 51.Kb8 Qh3 52.c8Q (52...Qc8 53.Kc8 g5 54.b7 Kg7 55.b8Q h5 56.Qbc7 Kg8 57.Qdd8#) 1–0. Bonetti,Shane – Jonsson,Gudbrandur, ETC, 2004.

11.d3 Nd6 12.c4 Nd7 13.Nbd2 Nc5 14.Qc2 dc4 15.dc4 f6 16.Bd4 b6 (16...Nf5 17.Bc3+=) 17.Bc5+/– bc5 18.Nb3 Nb7 19.Ra1 Bd6 (19...c6 20.Ra7+=) 20.Ra8 Qh5 21.Ra7 g5 (21...Rd8 22.h3 e5 23.Ne1+-) 22.h3 g4 23.hg4 Qg4 24.e4 (24.Nh2 Qg7+/–) 24...Qh5 25.g3 Kh8 (25...Qg6 26.Qd3+/–) 26.Ne5 Qh6 (26...Qe5?? 27.f4 Qd4 28.Nd4 cd4 29.Bd3+-) 27.Ng4 Qg6 28.Qd3 h5 29.Nh2 (29.e5 Qd3 30.Bd3 hg4 31.ed6 cd6=) 29...h4+= 30.g4 (30.e5 Qd3 31.Bd3 Be5 32.gh4 Rg8 33.Kh1 Bd4+=) 30...Qg5 31.Qh3+= f5 32.Nf3 fg4 33.Qh4 Qh4 34.Nh4 Rg8 35.Ng2 Kh7 36.Ra8 Be5 37.Bg4 Rg4 38.Rc8 Rg8 39.Rg8 Kg8 40.f4 Bd4+/– 41.Kf1 Nd6 42.Nd2 Bc3 43.e5 Bd2 44.ed6 cd6 45.Ke2 Ba5+/– 46.Ne3 Bc7 47.f5+- d5 48.fe6 d4 49.Nd5 Be5 50.Kd3 Kf8 51.Ke4 Bd6 52.Kf5 Ke8 53.b6 d3 54.Kf6 d2 55.Nc3 Be7 56.Kg6 Bh4 57.b7+- Bg3 58.Kf6 Bh4 59.Ke5 Bg3 60.Kd5 Ke7 61.Kc5 Ke6 62.Kc6 Be5 63.Nd1 Bd6 64.c5 Bb8 65.Kb6 Kd7 66.c6 Kd6 67.Kb5 Bc7? 68.Nc3 Ke6 69.Kc5 ½–½. Dopper,Johan – de Boer, corr, 1992.

11.d3 Nd6 12.c4 Nd7 13.Nbd2 Nc5 14.Qc2 dc4 15.dc4 f6 16.Bd4 b6 17.Bc5+/– bc5 18.Nb3 (18.Ne4 Ne4 19.Qe4 f5+=) 18...Nb7 (18...c6 19.Nc5 cb5 20.Nd4+/–) 19.Nfd2 (19.Rb1 Bd6+/–) 19...f5 (19...c6 20.Ra1+=) 20.Bf3+/– g5 (20...Qg6 21.Qa2 e5 22.Bd5 Kh8 23.Ra1+/–) 21.Bc6 (21.Ra1!? Nd8+/–) 21...Qh5+/– 22.Re1 (22.Ra1 Nd8+/–) 22...Nd8 23.Ba8 Nf7 (23...Bd6 24.Nf1+/–) 24.e4 (24.Nf1 Rd8+/–) 24...Bd6+= 25.Nf1 f4 26.f3 (26.Rd1 Ne5+=) 26...g4= 27.Qe2 (27.Nfd2 g3 28.h3 Be5=) 27...gf3 28.Qf3 (28.gf3 Kh8=) 28...Qh4 (28...Qg6 29.Nfd2 Ne5=) 29.Qf2 (better is 29.Qe2!?+=) 29...Qf2=+ 30.Kf2 Ne5 31.Rd1 (31.Ke2 Bd7 32.Ra1 Nc4-/+) 31...Nc4 32.Bc6 (32.Nfd2 Nb6 33.Bc6 c4-/+) 32...Ne5 33.Nfd2 (33.Nbd2 c4-/+) 33...c4 (33...Nc6?! 34.bc6 Ba6 35.Rc1=+) 34.Na5 (34.Na1!?-/+) 34...c3-+ (34...Nc6?! 35.Nc6 c3 36.Nc4 Bc5 37.Ke2=) 35.Ndb3 f3 (35...c2 36.Rd2 f3 37.Kf1-+) 36.gf3 Rf3 37.Kg2 c2 (38.Rd2 Rc3-+) 0–1. Grund,Karl – Podgorny,Jiri, corr ICCF EU–M–279, 1972.

11.d3 Nd6 12.c4 Nd7 13.Nbd2 Nc5 14.Qc2 dc4 15.dc4 f6 16.Bd4 b6 17.Bc5 bc5 18.Bd3 f5 19.Ra1 Bb7 20.Ra7 Qb8 21.Qa4 Bf6. Grund.

11.d3 Nd6 12.c4 Nd7 13.Nbd2 Nc5 14.Qc2 dc4 15.dc4 f6 16.Bd4 Nf5 17.Bc5 Bc5 18.Nb3 Be7. Grund.

11.d3 Nd6 12.c4 Nd7 13.Nbd2 Nc5 14.Qc2 dc4 15.dc4 f6 16.Bd4 Nf5 17.Bc5 Bc5 18.Bd3 +=.

9.c4 b6 10.Be2 Bb7 11.0-0 Nbd7 12.d4 Qc7 13.Nbd2 0-0 14.Qb3 (14.dc5 Nc5 15.Be5 Qd7=) 14...Ra8 15.Bb2 h6 (15...cd4 16.ed4 Bd6 17.Rc1=+) 16.Rc1= Qd8 17.h3 Qb8 18.dc5 Nc5 19.Qc2 dc4 20.Nc4 Be4 21.Qd1 Qb7 22.Nd6 Bd6 23.Qd6 Nd5 (23...Ne8 24.Qd1=) 24.Qg3 f6 25.Nd4 (25.Bd4 Nb3 26.Rc6+/-) 25...e5 26.Nc6 Ra2 27.Nd8?? (better 27.Bc4 Rb2 28.f3=+) 27...Qd7-+ 28.Bc4 Rb2 29.Nc6 Rc2?? (better 29...Kh7 30.Rd1 Rb1 31.Rb1 Bb1-+) 30.Rc2= Bc2 31.f3?? (better 31.Qf3=) 31...Kh8 32.Qf2 (32.Qf2 Bd3 33.Bd3 Nd3 34.Qd2-+). BeepBeepImAJeep (2625) - yahim (2080), lichess.org, 2017.

9.c4 Ne4 10.Be2 0-0= 11.0-0 Nd7 (11...dc4 12.Bc4 Nd6 13.Be2=) 12.d3 (12.Qc2 Nd6=) 12...Nd6 (12...Nef6 13.Qc2=) 13.Nbd2 b6 14.Ne5 (14.Qc2 Bf6=) 14...Ne5 15.Be5 Bb7 16.Bf3 f6 (16...Bf6 17.d4=) 17.Bc3 Qa8 (17...Qd7 18.Qe2=) 18.Qa1 (18.Qc2 Qe8=) 18...Qa1 (18...e5 19.Rd1=) 19.Ra1+= Ra8 (19...Kf7 20.Bh5 g6 21.Bf3=) 20.Ra8 Ba8 21.g4 (21.d4 cd4 22.Bd4 Bd8=) ½–½. hal1958 – ggaarrii, playchess.de, 2003.

9.c4 Ne4 10.Bg7!? Rg8 11.Bb2 +/–.

9.bc6 bc6 10.Be2 0-0 11.0-0 c5 12.c4 Nc6 13.cd5 (13.d3 d4=) 13...ed5=+ 14.d4 (14.d3 Re8=+) 14...c4 15.Nbd2 Bf5 16.Ne5 Qc7 17.Nc6 Qc6 18.Bc3 Re8 19.Nf3 Bd6 (19...Ne4 20.Qa1-/+) 20.Re1 (20.Ne5 Qc8=+) 20...h6 (20...Ne4 21.Qc2-/+) 21.Qc1 Rb8 22.Nh4 (22.Ne5 Qe8 23.Qa1 Ne4-/+) 22...Bh7 (22...Rb1 23.Qd2 Ne4 24.Qc2 Nc3 25.Qc3-+) 23.Bb2 Qb6 24.Ba3 Bb4 (24...Qd8!? 25.Bb2 Ne4-/+) 25.Bb4=+ Qb4 26.Nf3 (26.Qa1 Rc8=+) 26...Ne4 27.Bd1 Nc3 28.Bc2 Bc2 29.Qc2 Qb2 30.Qb2 Rb2-/+ 31.Kf1? Ne4-+ 32.Rc1 Nf2 33.h3 Ne4 34.Ne5 Ng3 35.Ke1 Rg2 36.Ng4 Re2 37.Kd1 h5 (38.Ne5 Re3-+) 0–1. Rosner,Dirk – Zorr, corr DDR–ch I720, 1988.

9.bc6 bc6 10.Be2 Nbd7 11.0-0 0-0 12.Bf6 Nf6 (< 12...gf6 13.d4+=) 13.c4 Ba6 14.cd5 Be2 15.Qe2 cd5 16.d4 Qd6 (16...Qc7 17.Nbd2=+) 17.g3 (17.Rc1!?=) 17...Rc8 18.Ne5 h6 (18...Qc7 19.Nd2=+) 19.Qd2 (19.Nd2 Rc2=+) 19...Ne4 20.Qa5 Bd8 (20...Bf6 21.f3 Ng5 22.f4=+) 21.Qa3 Qc7 22.Nd3 Be7 23.Qa4 Qc4 24.Qc4 dc4 25.Nf4? (25.Rc1 Bd6=+) 25...Bb4 (better is 25...c3-+) 26.f3 Nd2 27.Nd2 Bd2 28.Ne2?? (better is 28.Kf2!?-/+) 28...c3 (28...Be3 29.Kg2 c3 30.Rd1-+) 29.Rd1? (better is 29.e4 c2 30.Kg2-+) 29...f6 (better is 29...Be3!? 30.Kg2 c2 31.Rd3-+) 30.Kf1? (better is 30.Kf2-/+) 30...Be3-+ 31.Rd3 Bd2 32.h3 g5 33.g4 Kg7 0–1. tanto (1730) – johnb (2260), net–chess.com, 2003.

9.Be5 Nbd7 =.

10.d4 =.

10.Be2 dc4 11.Bc4 b6 12.0-0 Bb7 13.d3 Nbd7 14.Nbd2 h6 (15.Qc2 Qc7=). pcmvr (2225) – pushtiu (2160), net–chess.com, 2006.

10.Be2 Nbd7 11.0-0 b6 12.d3 Qc7 13.Nbd2 Bb7 14.Re1 Ne8 (14...Ra8 15.cd5 Nd5 16.Nc4=) 15.Nf1 (15.e4 Nd6=) 15...f5 (15...dc4 16.dc4 Nd6 17.Bd3=) 16.Ng3 Bf6 (16...e5 17.cd5 f4 18.ef4 ef4 19.Ne4+=) 17.Qd2 g6 (17...Nd6 18.Bf6 Nf6 19.Qc3=) 18.d4 (18.cd5 ed5 19.Bf6 Ndf6=) 18...Nd6 19.dc5 Nc5 20.Bf6 Rf6 21.cd5 Bd5 22.Rd1 Nce4 23.Ne4 Ne4 24.Qd4 (24.Rc1 Nd2 25.Rc7 Nf3 26.Bf3 Bf3 27.gf3 e5+=) 24...Rf8= 25.Qe5 (25.Ra1 Rd8 26.Qe5 Rc8=) 25...Qe5 (25...Rc8 26.Bd3=) 26.Ne5=+ Nc3 27.Rd2 Ra8 28.f3 Ne2 29.Re2 Ra1 30.Kf2 Rb1 31.Rc2 (31.e4 fe4 32.fe4 Ba8=) 31...Rb5 32.Rc8 (32.h4 Bb7 33.Nd7 h6=+) 32...Kg7= 33.Rc7 Kf8 (33...Kh6 34.g4 g5 35.Nf7 Kg6 36.Ne5 Kh6 37.Nf7 Kg6 38.Ne5 Kh6=) 34.Nd7 (34.Rh7 g5+=) 34...Ke8= 35.Nf6 Kd8 36.Nd5 Rd5 37.Rh7 Rd2 38.Kg3 b5 39.Rb7 Rb2 40.e4 (40.Rg7=) 40...Kc8 (40...fe4 41.fe4 b4 42.Kf4=) 41.Rb6 (41.Re7 Re2 42.Re6 fe4 43.Rg6 Kc7+/-) 41...fe4 (41...Kd7 42.ef5 gf5 43.h4=) 42.Re6+= ef3 43.Kf3 Kc7 (43...Rb3 44.Kf2+=) 44.Rg6 b4 45.h4 b3 46.Rg4 (46.Re6 Rc2 47.Re1 Rc3 48.Kf4 Rc4 49.Kg5 Rb4+/-) 46...Kb6 (46...Rb1 47.Rc4 Kd6 48.Rd4 Kc5 49.Rd2=) 47.Rb4 Kc5 48.Rb8 Kc4 (48...Rb1 49.Ke3 Kc4 50.h5=) 49.h5 Rd2 (better 49...Rb1 50.g4 Kc3+/-) 50.g4 (better 50.h6!? Rd3 51.Ke2+-) 50...Rh2 (50...b2 51.h6 Kc3 52.g5=) 51.Kf4 (51.Kg3 Rh1=) 51...b2 (51...Rh1 52.g5 Rh4 53.Kf3 Rh5 54.Kf4=) 52.h6 (52.Kg3 Rd2 53.h6 Rd3 54.Kf4=) 52...Kc3= 53.g5 Rh4 54.Kg3 Rb4 55.Rb4 Kb4 56.h7 b1Q 57.h8Q Qg1 58.Kf4 Qf2 ½-½. sodiumattack (2050) - blokky (1940), gameknot.com, 2020.

10.Be2 Nbd7 11.0-0 dc4 12.Bc4 b6 13.d3 Bb7 14.Nbd2 Qc7 15.e4 Ng4 16.Qe2 Bd6 17.g3 Nge5 18.Bb3 Rd8 19.Ne1 Be7 20.f4 Ng6 21.Nef3 Nf6 22.Ng5 (22.f5 ef5 23.ef5 Nf8+=) 22...h6 23.Nh3 Nf8 24.Nf3 Ne8 25.Ne5 f6 (25...Nd6 26.f5 ef5 27.Nf7 Nf7 28.Rf5+-) 26.Nc4= Qd7 27.Bc2 (27.Nb6? Qb5 (27...Qd3?! 28.Qd3 Rd3 29.Bc2=) 28.Be6 Ne6-+) 27...Qb5 28.Rb1 Qa6 29.Nb6 Nd6 30.Nc4 Nb5 31.Bb3 ½–½. Teichmann,E – Rujevic,M, Melbourne, 1998.

10.Be2 Nbd7 11.0-0 dc4 12.Bc4 Nb6 13.Na3 (13.d3 Nfd7=) 13...Nfd5 (13...Nc4 14.Nc4 Bd7 15.Qb3=) 14.Qb3 Qc7 (14...Nc4 15.Nc4 Qd7 16.d4=) 15.Bb2 (15.e4 Nf6 16.Re1 Nfd7=) 15...Rd8 16.Rc1 Qb8 (16...Nc4 17.Nc4 f6 18.d4=) 17.d4 (17.Be5 Bd6 18.d4 cd4 19.Bd4 Qc7+=) 17...Nc4 (17...cd4 18.Bd4 Qc7 19.Bb2 Nc4 20.Nc4+=) 18.Nc4+= b6 19.dc5 Bc5 (19...bc5 20.Be5 Qa7 21.b6+=) 20.Be5 (20.e4 Nc7+=) 20...Qb7 21.Bd4 Nb4 (better is 21...Bd7!?+=) 22.Nb6!+/– Bb6 (22...Qb6 23.Rc5) 23.Qb4 Bd4 24.Nd4 (White launches an attack) 24...Qd5 (24...Re8 25.Qd6+-) 25.f3 (25.Qe7 Rf8+-) 25...Qg5 (better is 25...Bd7+-) 26.f4 Qg4 (26...Qh5 27.Qe7 Rf8 28.Qc7+-) 27.Qe7 Rf8 28.b6 e5 29.Qe5 (29.h3 Qd7 30.Qd7 Bd7 31.fe5 Rb8+-) 29...Bb7 30.Qg5 Qg5 31.fg5 Ra8 (31...Rb8+-) 32.Rc7 Ra1 (32...Rb8 33.Nb3 Ba6 34.Nc5 Rb6 35.Na6+-) 33.Kf2 Ra2 (33...Ba6 34.Ra7 h5 35.Kg3+-) 34.Ke1 Ba6 35.Ra7 (35...h5 36.b7 Ra1 37.Kd2 Ra2 38.Kc3 Ra3 39.Kb4 Bb7 40.Ka3 Bg2 41.Nf5+-) 1–0. Gerding,T – Fuss,B, 1982.

10.Be2 Nbd7 11.0-0 dc4 12.Bc4 Qc7 13.Qc2 =.

13.Qb3 Qd5 14.Qc2 Qe4 15.Rc1 Bd7 16.Bf6 Qc2 17.Rc2 gf6 18.Ra2 Ra8 19.Ra8 =.

13.Qc1 Qd5 14.d4 Bd7 15.Nc3 Qf5 16.Ne5 cd4 17.ed4 h6 18.Bd3 Qh5 19.Qf4 =.

13.Qc2 Qd5 14.Bf6 Bf6 15.Rc1 Be7 16.Nc3 Qd8 17.Ne4 Nd7 18.d4 cd4 19.Nd4 +=.

13.Qc2 Nbd5 14.d4 b6 15.Rd1 Bb7 16.e4 Nb4 17.Qb2 Qa8 18.e5 Nfd5 19.dc5 =.

13.Qc2 Nfd5 14.d4 Qc7 15.Rc1 c4 16.e4 Nb4 17.Qd2 f5 18.ef5 ef5 19.Na3 +=.

13.Qc2 Nbd7 14.d4 cd4 15.Bd4 Bd6 16.Nbd2 e5 17.Nc4 Qc7 18.b6 Qb8 19.Nd6 +=.

13.Qc2 Nfd7 14.d4 Nd5 15.dc5 Nc5 16.Rd1 Qa5 17.Bd4 b6 18.Nc3 Nc3 19.Bc3 +=.

13.Nc3 Re8 14.Bb2 Bd6 15.d4 cd4 16.Qd4 e5 17.Qh4 Qe7 18.Rd1 Bf5 19.e4 =.

13.d4 c4 14.Nbd2 Bd7 15.Qb1 Qe8 16.Nc4 Bb5 17.Nd6 Bd6 18.Bb5 Qe7 19.e4 +=.

13.Qc2 0-0 14.Bf6 Bf6 15.Rc1 Be7 16.Nc3 Qd8 17.Ne4 Nd7 18.d4 cd4 19.Nd4 +=.

13.Nc3 Qd8 14.Na4 Nbd5 15.Qc2 b6 16.d4 cd4 17.Bd4 Bb7 18.Rd1 Qb8 19.Ne5 +=.

13.d4 Nbd7 14.Nc3 Qd6 15.Qc2 0-0 16.Rd1 cd4 17.Ne4 Ne4 18.Rd4 Qb6 19.Re4 +=.

13.Be5 Qd8 14.d4 Nbd7 15.dc5 Bc5 16.Qc2 0-0 17.Rd1 Qe7 18.Bd4 b6 19.Ne5 +=.

13.Ne5 Nbd7 14.Bc4 Qd6 15.Nd7 Bd7 16.d4 cd4 17.Qd4 Qd4 18.Bd4 Bd6 19.Bf6 +=.

13.Qc2 0-0 14.d4 b6 15.Rd1 Bb7 16.e4 Nb4 17.Qb2 Qa8 18.e5 Nfd5 19.dc5 =+.

13.Nc3 b6 14.d4 Bb7 15.dc5 Bc5 16.Nd5 Bd5 17.Qc2 Qe7 18.Rd1 Be4 19.Qa4 +=.

13.d4 b6 14.dc5 Bc5 15.Qd3 0-0 16.Rd1 Bb7 17.Nc3 Qe7 18.Na4 Bb4 19.Bd4 =.

13.d4 cd4 14.Bd4 0-0 15.Qc2 Bd6 16.e4 (White gets the initiative) 16...Nb4 17.Qb2 Ne4 18.Bg7 Re8 19.Bd4 Qe7 (19...b6 20.Rd1+=) 20.Nbd2 Nd2 21.Qd2 e5 22.Bc3 Bf5 (22...Rd8!?+=) 23.Rd1+/– (23...Rc8 24.Qd6 Qd6 25.Rd6 Rc3 26.Ne5+/–) 1–0. mrkt – arrakis, internet, 2005.

13.Be5 0-0 14.Nc3 b6 15.Nd5 Nd5 16.Bc4 Bb7 17.d4 cd4 18.Qd4 Nf6 19.Ra1 +=.

13.Ne5 Qa5 14.Nc3 0-0 15.Qc1 Qc7 16.d4 Bd6 17.f4 Ne3 18.b6 Qe7 19.Rf3 -/+.

13.Qc1 Nbd5 14.d4 b6 15.dc5 Bc5 16.Qc4 Qe7 17.Nc3 Nc3 18.Bc3 Bb7 19.Qh4 +=.

13.Qc2 Nbd5 14.d4 b6 15.dc5 Bc5 16.Rd1 Qe7 17.Be5 0-0 18.Nc3 Bb7 19.Nd5 =.

13.d4 c4 14.Nbd2 Qb5 15.Ne5 Qa4 16.Qa4 Na4 17.Ndc4 Nd5 18.Rc1 0-0 19.Nd2 +=.

13.Ne5 Qd8 14.d4 Qc7 15.dc5 Bc5 16.Qd2 0-0 17.Rc1 Qe7 18.Qc2 Bd6 19.Bd4 +=.

13.Bf6 Bf6 14.Qc2 Be7 15.Rd1 Nd5 16.Nc3 Qc7 17.Nd5 ed5 18.e4 Qd6 19.ed5 +=.

13.Qb3 0-0 14.d4 c4 15.Bc4 Nc4 16.Qc4 Qa5 17.Nc3 Rc8 18.Qb3 Bb4 19.Na2 =.

13.Qc1 Nbd5 14.Nc3 Qc7 15.Rd1 0-0 16.Na4 Rc8 17.Be5 Bd6 18.d4 c4 19.Nc5 =.

13.Qc2 Nbd5 14.d4 Qa5 15.Nc3 Nb4 16.Qd2 cd4 17.Nd4 0-0 18.e4 Qb6 19.e5 +=.

13.Nc3 0-0 14.d4 c4 15.Ne5 Qc7 16.Qc2 Bd6 17.Bf3 Ra8 18.Rb1 Be8 19.Bb2 =.

13.Ne5 0-0 14.d4 c4 15.Nc3 Nfd5 16.Qc2 Qc7 17.Rb1 Ra8 18.Bf3 Bd6 19.Bb2 =.

13.Qa4 Qc7 14.d4 0-0 15.Rd1 b6 16.dc5 Bc5 17.Qh4 Bb7 18.Rc1 Ra8 19.Nbd2 =.

13.Qb3 b6 14.Rd1 Bb7 15.Nc3 0-0 16.d4 Qc7 17.Qc2 Bd6 18.h3 cd4 19.Rd4 =.

13.Qc1 b6 14.d4 Bb7 15.Rd1 0-0 16.dc5 bc5 17.Bf6 Bf6 18.Qc2 Qc7 19.Nbd2 =.

13.Qc2 0-0 14.d4 b6 15.dc5 Bc5 16.Ne5 Ne5 17.Be5 Nd5 18.Nc3 Bb7 19.Bf3 =.

13.d4 Qc7 14.Qc2 0-0 15.Bd3 Rd8 16.Rc1 b6 17.Nbd2 Bb7 18.e4 h6 19.Nc4 =.

9.Nc3 0-0 10.Be2 Bd7 11.0-0 Qb6 12.Ne5 Be8 13.Qb1 d4 (13...Qc7 14.Nf3=) 14.Nc4 (14.bc6!? Qb1 15.Nb1 Nc6 16.ed4+=) 14...Qd8+= 15.ed4 Qd4 16.Na4 Qa7 17.Ncb6 Bd8 18.Bd4 cb5 19.Bb5 Nc6 (19...Qa5 20.c4=) 20.Bc6 (20.Bc5 Ne7 21.Be7 Bb5 22.Bd8 (22.Qb5?! Be7 23.d3 Rd8=) 22...Ba4 23.Be7+/–) 20...Bc6= 21.Nc3 Re8 22.Nb5 (22.Re1 e5 23.Bc5 Qa5=) 22...Qa6 (22...Qa5 23.Nc3-/+) 23.Nc3 (23.Nd6 Ne4 24.Nbc4 Bg5=) 23...e5+= 24.Bc5 (24.Be3 Bb6 25.Qb6 Nd5 26.Nd5 Bd5=) 24...Bb6 (24...Re6 25.Qb2 Bb6 26.Bb6 Qc4=) 25.Qb6 Qb6 26.Bb6 Nd5 27.Nd5 Bd5 28.Re1 e4 29.f3 f5 30.d3 Re6 31.Bf2 ed3 32.cd3 Re1 33.Be1 Kf7 34.f4 Ke6 35.Bb4 b6 36.Kf2 Bb7 37.g3 Kd5 38.Ke3 Kc6 39.Kd4 Kb5 40.Kc3 Bd5 41.Be7 g6 42.Kd4 Bf3 43.Ke5 Kc6 44.d4 Kd7 45.Bb4 Kc6 46.Bf8 Be4 47.h4 Bf3 48.Ke6 Be4 49.Be7 Bd5 50.Ke5 Bc4 51.h5+= Kd7 52.hg6 hg6 53.Bb4 Be2 54.d5 Bc4 55.d6 Be2 56.Kf6 Bh5 57.Kf7 g5 58.Kf6 gf4 59.gf4 Bg4 60.Ke5 Bh3 61.Kd4 Bg2 ½–½. Fournier,Frederic – Jauneau,David, Partie Libre, 1995.

9.c4 dc4 10.Bc4 0-0 11.0-0 cb5 12.Bb5 Bd7 (12...Bd6 13.Qb3=) 13.Be2 Nc6 (13...Bc6 14.Bf6 Bf6 15.d4=) 14.Nc3 (14.Qb3 Na5 15.Qc2 Qc8=) 14...Nd5 (14...Qb6 15.d4=) 15.Nd5+= ed5 16.Qb3 Bc8 17.Nd4 Na5 (17...Bf6 18.Nc6 bc6 19.Qc2+=) 18.Qb1 (18.Qb5 b6+/–) 18...Nc4 (18...Bd6 19.Rc1+=) 19.Bc4 dc4 20.Qb5 Bf6 (20...Bd6 21.Rc1+=) 21.Qc4+/– Bd4 (21...Qd7 22.d3+/–) 22.Bd4 Be6 23.Qc3 Bd5 24.e4 Be4 25.f3 Bf5 26.Bg7 Qb6 27.Bd4 Qg6 28.Qe3 f6 29.Re1+- h5 30.Qb3 Qf7 31.Qb5 Qd7 32.Qc4 Kg7 33.Qc5 Re8 34.Re3 Kg6+/– 35.Qb6 Re6 36.Re6 Qe6 37.Qe6 Be6 38.Bb6 Kf5 39.Kf2 h4 40.Ke3 Bd5 41.d4 Kg5 42.g4 hg3 43.hg3 Kf5 ½–½. De Visser,Arno – Kaan, 1984.

9.c4 dc4 10.Bc4 cb5 11.Bb5 Bd7 12.Be2 =.

9.c4 Nbd7 10.Be2 dc4 (10...0-0 11.cd5 ed5 12.bc6 bc6 13.0-0=) 11.bc6 bc6 12.Bc4 Nb6 (12...0-0 13.0-0=) 13.Be2 0-0 (13...c5 14.Qc2=) 14.0-0 (14.Qc2 c5+=) 14...Bb7 (14...c5 15.d4=) 15.d3 (15.Bf6 Bf6 16.Qc2 e5=) 15...Nbd5 16.Nbd2 Ng4 (16...c5 17.Nc4=) 17.Qb3 (17.Qc2 Bb4+=) 17...Qa8 (17...Bb4 18.Ne4+=) 18.h3 (18.Rb1 Ba6+=) 18...Bf6 (18...Ngf6 19.Be5+=) 19.d4 (19.hg4?! Ba1 20.d4 c5 21.dc5 Rb8+=) 19...Nh6 20.Bb2 Qc8 21.Ra1 Qc7 22.Ra7 Rb8 23.e4 (better is 23.Bd3+/–) 23...Nf4? (better is 23...Nb6 24.Ba6 Bd8+-) 24.Ba6+- Kh8? (24...c5 25.Rb7 Rb7 26.Bb7 Ne2 27.Kh1 Nd4+-) 25.Rb7 Rb7 26.Qb7 Qb7 27.Bb7 Nd3 28.Ba3 Ng8 29.Bc6 Ne7 30.Be8 Kg8 31.e5 Be5 32.de5 Ng6 33.Nc4 f6 34.ef6 gf6 35.Nd6 Kg7 36.Bb5 Nde5 37.Nd4 Nf8 38.Be8 Neg6 39.Ne4 f5 40.Ng5 Nf4 41.Ngf3 h6 42.Bb2 Nd3 43.Ba1 Kf6 44.Nc6 e5 45.Nce5 Ne5 46.Ne5 Ne6 47.Ba4 Nc5 48.Nd7 (48.Nd7 Kg5 49.Nc5+-) 1–0. Beekes,Noud – Zimmermann,Jan Erik, SL–2006–0-00041, 2006.

9.Be2 0-0 10.0-0 c5 11.c4 dc4 12.Qc1 b6 13.Na3 Bb7 14.Nc4 Nbd7 15.Qc3 Ne8 16.Bb2 Bf6 17.d4 cd4 18.Nd4 Nc5 19.Qb4 Nd6 20.Nc6 Bc6 21.Bf6 (worse is 21.bc6 Bb2 22.Qb2 Nc4 23.Bc4 Qc7=) 21...gf6 (21...Qf6 22.bc6 (22.Nd6?! Bd5+=) 22...Nc4 23.Bc4+/– (worse is 23.Qc4 Rc8=)) 22.bc6+/– Nc4 23.Qc4 Qc7 24.Bf3 Ra8 25.Rd1 Ra4 26.Qc3 Kg7 27.Rd4 e5 28.Ra4 Na4 29.Qc4 Nc5 30.Qg4 Kf8 31.Qf5 Kg7 32.Bd5 Nb7 (32...Qa7 33.Qg4 Kh6 34.h3+-) 33.Be4 (33.f4 Nd8 34.g3+/–) 33...Kf8 (better is 33...Nd8!?+/–) 34.Qf6+- (34.Qh7?! Nd8+/–) 34...Qd6 35.Qd6 (35.Qd6 Nd6 36.Bh7+-) 1–0. pcmvr – agostinhoarruda (2570), net–chess.com, 2016.

9.Be2 Bd7 10.bc6 bc6 11.0-0 c5 12.c4 Nc6 13.Ne5 0-0 14.Nd7 Qd7 15.Na3 Na5 (15...Ra8 16.Nb5=+) 16.cd5 ed5 17.Qb1 c4 18.Nc2 Nb3 19.Bc3 Ne4 20.Rd1 (20.Qb2!?=+) 20...Qf5-/+ 21.Bf3 Bh4 (21...Nc3?! 22.dc3 Rd8 23.Nd4 Qb1 24.Rb1=) 22.Nd4 Bf2 23.Kh1 Nd4 24.Bd4 Ng3 25.hg3 Qg5 26.Qb6 Qg3 27.Bf6 Rb8 (27...gf6?! 28.Qf6 d4 29.ed4=+) 28.Qd4 gf6 29.Qf6?? (better is 29.Qg4 Qg4 30.Bg4-+) 29...Rb6!! 30.Qf5 Rh6 31.Bh5 Qh4 32.Qh3 Qh5 33.Rf1 Qg5 34.Rf2 Rh3 35.gh3 c3! (36.dc3 Qe3-+) 0–1. Panek,Tadeusz – Wolanin,M, Gdynia op, 1985.

9.Ne5 cb5 10.Bb5 Bd7 11.Nd7 Nbd7 12.0-0 0-0 13.f4 Nc5 14.Bd4 Qa5 15.Nc3 Nce4 16.Bd3 Nc5 17.Qe2 Nd3 18.Qd3 (worse 18.cd3 b5=+) 18...Qa6 19.Nb5 Ne4 20.Ra1 Qc6 21.Nc3 Nc3 22.Bc3 (22.Qc3 Qc3 23.Bc3 f6=) 22...Rb8 23.Kf2 b5 24.Bd4 f6 25.Ra7 Bc5 26.Qc3 Rc8 27.Bc5 Qc5 28.Qc5 Rc5 29.c3 h6 30.Re7 Rc6 31.Rb7 Rc5 32.Ke2 Kh7 (32...g6!?+=) 33.Rb6+/- e5 34.fe5 fe5 35.Kd3 e4 (better 35...Kg8!?+/-) 36.Kd4+- (36.Kd4 Rc7 37.Rb5+-) 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

10.Qc2 =.

10.Nc3 Nbd7 11.Be2 Nb6 12.Qb3 (12.cd5 cd5 13.0-0 Bd7=) 12...c5 (12...dc4 13.Bc4 Nc4 14.Qc4=+) 13.d4 (better 13.d3!?=) 13...dc4 14.Bc4 cd4 15.Nd4 (15.ed4 Nc4 16.Qc4 b6-/+) 15...Qc7 (15...e5!? 16.Nf3 Nc4 17.Qc4 Be6-/+) 16.Be2=+ e5 17.Nf3 Be6 18.Qb1 Nfd7 (18...g6 19.0-0=+) 19.0-0 f5 20.Rc1 Qb8 (20...Nc5 21.Bb2=+) 21.Bb2 Bd6 (21...Rc8 22.Rd1=) 22.h3 (22.e4!? h6 23.ef5 Bf5 24.Ne4+-) 22...Kh8 23.Ng5 Bg8 24.e4 f4 25.Rd1 Be7 26.Nf3 Rc8 27.Qa1 (27.Nd5 Bd6+=) 27...Bf6 (27...Bb3 28.Rd2=+) 28.Ba3 (28.Na4 Na4 29.Qa4 Nc5=) 28...Nc5 29.Qb2 Nca4 30.Na4 Na4 31.Qb4 Nc3 32.Re1 Ne2 33.Re2 Rc4 (33...Qa7 34.Bb2=+) 34.Qd6= Qa8 (34...Qe8 35.Bb2 Qb5 36.Ne5=) 35.Qf8 (better 35.Bb2+-) 35...Qf8 36.Bf8 Rc1 37.Re1 (better 37.Kh2 Rb1 38.Rc2=+) 37...Rc2 (better 37...Re1!? 38.Ne1 Bc4-/+) 38.Rb1 (38.Bd6 Bc4+=) 38...Rc4 39.Rb4 Rc1 40.Kh2 Rc2 (40...Rd1 41.Ra4 Rb1 42.Ra8=) 41.Kg1 (41.Bd6 Rf2 42.Be5 Rf3 43.Bf6 Rb3 44.Rb3 Bb3=) 41...Rc4 42.Bd6 Rb4 43.Bb4 Bc4 44.b6 (44.Bd6 Bb5 45.Ne5 g5=) 44...Bd3=+ 45.Bd6 Be4 46.Ne5 f3 (46...Kg8 47.Kf1=+) 47.gf3= Be5 48.Be5 Bf3 49.Kh2 Kg8 50.Kg3 Bc6 51.h4 Kf7 52.Kf4 Ba4 53.Bd4 Kg6 54.Kg3 Bd7 55.Be3 Kf5 56.Bc5 Bc6 57.Bd4 g6 58.Be3 Bd5 59.Bc5 g5 60.Be7 gh4 ½–½. Steiner,Peter Markus (1695) – Muckle,Richard (1955), 9th Rheinland–Pfalz–Open, 2017.

10.Be2 dc4 11.Bc4 Bd7 12.Nc3 cb5 13.Nb5 Qa5 14.Qb1 Bc6 (14...Bb4 15.Bf6 gf6 16.Nbd4=) 15.0-0 Bf3 16.gf3 Nc6 (16...Qd2 17.Bd3 Qb4 18.Bf6 Qb1 19.Rb1 Bf6 20.Nd6=) 17.Bf6 (17.d4 Rc8 18.Rc1 Bb4+=) 17...Bf6 (17...gf6 18.d4+=) 18.d4 Be7 (18...Ra8 19.Rc1+=) 19.Rc1+/– Rc8 (19...Ra8 20.f4+=) 20.Bf1 (20.Bd3 g6+=) 20...Bb4 (20...Bf8 21.Kh1+=) 21.f4+/– g6 22.Qe4 (22.Be2 h6+=) 22...Rd8 23.Qd3 Ne7 24.Qd1 Nd5 25.Ra1 Qb6 26.Qa4 Be7 27.Rc1 Qa6 28.Qc2 Qa5 29.Rb1 Qa8 30.Bg2 Rc8 31.Qb3 b6 32.h3 Qb7+= 33.Ra1 Qc6 34.Bf3 Bh4 35.Ra2 h6 36.Kh2 Kg7 37.Kg2 h5 38.Na7 Qc4+= 39.Qb2 Ra8 40.Ra3 Be7 41.Ra1 Kf8 42.Be4 Kg7 43.Rc1 Qa4 44.Bd5 Ba3 45.Qc2 Qc2 46.Rc2 Ra7 47.Bc6 Rc7 48.Ra2 Rc6= 49.Ra3 b5 50.Rb3 Rb6 51.Kf3 Kf6 52.Rb4 Ke7 53.Ke2 Kd6 54.Kd3 Kc6 55.Rb3 Ra6 56.Ke4 h4 57.Ke5 Ra5 58.e4 b4= 59.Kf6 Kb5 60.Kf7 Kc4 61.Rb1 b3 62.e5 Rd5 63.Ke6 Rd4 64.f5 gf5 65.Kf5 Rd2 66.f4 Rd3 67.e6 Re3? 68.Kf6 Rh3 69.Re1 Rg3 70.e7 Rg8 71.f5 h3 72.Kf7 Rb8 73.e8Q Re8 74.Ke8 b2 75.f6 Kb3 76.f7 (76...Ka2 77.f8Q b1Q 78.Qf7 Qb3 79.Qa7 Qa3 80.Re2 Kb3 81.Re3 Kb2 82.Qa3 Kc2 83.Qc3 Kb1 84.Re1 Ka2 85.Ra1#) 1–0. pierre – Kelish, internet, 2006.

10.Be2 Bd7 11.0-0 (11.Nc3!?=) 11...dc4+= 12.bc6 Bc6 13.Bc4 Qc7 (13...b5 14.Be2+=) 14.Be2 (14.Ne5 Bd5 15.Be2 Nbd7=) 14...Nbd7 (14...b5!?+=) 15.Nd4= Ra8 16.Nc3 Bd6 17.h3 Bh2 18.Kh1 Be5 19.Nc6 Qc6 (19...bc6 20.Qc2+=) 20.d4 Bb8 (20...Bc7 21.Qb1+/–) 21.Qb1+/– Nd5 22.Nd5 ed5 23.Rc1 Qb6 24.Qc2 (24.Rc8!? Nf8 25.Bb2+/– (25.Qb6?? Ra1 26.Qb1 Rb1 27.Rc1 Rc1 28.Bd1 Rd1)) 24...Bd6+= 25.Qf5 Nf6 26.Qc2 g6 (26...Nd7 27.Bc3+=) 27.g3 (27.Bd3 Kg7+=) 27...Kg7 (27...Qc6 28.Qc6 bc6 29.Kg2=) 28.Bf3 (28.Kg2 Qd8+=) 28...Qd8 29.Qb3 (29.Kg2 b5=) 29...Qd7 30.Kg2 Ra3 31.Qb6 Ra6 32.Qb3 Ra3 33.Qb6 Ra6 34.Qb3 Ra3 ½–½. Bouvier,Clement (1785) – Maulana,Kahfi (1765), Elancourt France, Open, 2010.

12.0-0 Qa5 13.Bc3 Qb6 (13...Qc7 14.Bd4 Rc8 15.Nc3 Be8 16.Qb1 Nbd7 17.b6 Qb8 18.Nb5 e5; 13...Qa8 14.Bb2 Rc8 15.Nc3 Qa5 16.Qa1 Qb4 17.Rb1 Qc5 18.Na4 Qc7; 13...Qa7 14.Bd4 Bc5 15.Nc3 Rc8 16.Qb3 Ne4 17.Bd3 Bd4 18.ed4 Qb6; 13...Qa2 14.Bd4 Ne4 15.Nc3 Nc3 16.Bc3 Rc8 17.Qa1 Qa1 18.Ra1 Bc5) 14.Bd4 Bc5 15.Bf6 gf6 16.Qa4 e5 17.Nc3 Qd6 18.Qh4 e4.

12.0-0 Qc7 A) 13.Nc3 h6 (13...Rc8 14.Qb3 Be8 15.d4 Nbd7 16.Rc1 Bd6 17.g3Nb6 18.Nd2 Nc4; 13...g6 14.Bb2 Rc8 15.Qa1 Be8 16.Rc1 Qd8 17.Qa7Nbd7 18.d4 Qb6; 13...Qd6 14.Bb2 Rc8 15.Qc2 Ne4 16.Ra1 Qb617.Qb1 Nd6 18.Na4 Qc7) 14.Qb3 Rc8 15.Bb2 Be8 16.Rc1 Nbd7 17.d4Qd6 18.g3 Nb6; B) 13.Qb3 Rc8 (13...Be8 14.Be5 Bd6 15.Bd6 Qd6 16.Nc3 Nbd717.d4 Ne4 18.Ne4 de4) 14.Be5 Bd6 15.Bf6 gf6 16.Nc3 Qa5 17.Bd3f5 18.g3 Kg7; C) 13.Bb2 Rc8 (13...Ne4 14.Nc3 Rc8 15.Qb1 f5 16.Ne4 de417.Rc1 Qd6 18.Ne5 Qd2) 14.Qb3 h5 15.Rc1 Qd8 16.Nc3 Be8 17.d4Nbd7 18.Ba3 Ne4; D) 13.Qc1 Qc1 (13...Rc8 14.Qc7 Rc7 15.Be5 Rc8 16.Nc3 Be817.Ra1 Nbd7 18.Ra7 Ne5) 14.Rc1 Rc8 15.Rc8 Bc8 16.Bd4 Nbd717.Nc3 Nc5 18.h3 Nfe4; E) 13.Be5 Bd6 (13...Qa5 14.Nc3 Rc8 15.Qa1 Qb6 16.Bd3 Ng417.Bg7 f6 18.h3 Nf2) 14.Bf6 gf6 15.Nc3 Be8 16.Qa4 f5 17.Rc1 Nd718.Qh4 Qa5.

12.0-0 Bc8 A) 13.Qc2 Nbd7 (13...Bd6 14.Nc3 Nbd7 15.Rc1 b6 16.Na4 Bb717.h3 h6 18.Nd4 Ne4; 13...b6 14.Nc3 Nbd7 15.Nd4 Qc7 16.Bb2 Bb717.Ra1 Rc8 18.f4 Nc5) 14.Nc3 Bd6 15.Rc1 e5 16.h3 e4 17.Nd4 Ne518.Qb3 Be6; B) 13.Nc3 Nbd7 (13...b6 14.Qc2 Nbd7 15.Rc1 Bd6 16.Na4 Bb717.Nd4 Ne4 18.d3 Nec5; 13...Bd6 14.Bb2 Nbd7 15.d4 b6 16.Qb3 Bb717.Ra1 Qb8 18.g3 Rc8; 13...h6 14.d4 Nbd7 15.Bb2 b6 16.Qb3 Bb717.Bd3 Qc7 18.h3 Ra8; 13...Qd6 14.Qc2 Nbd7 15.Bb2 Nb6 16.Ra1Qc7 17.Rc1 Bd6 18.Qb3 Qe7) 14.Qc2 Bd6 15.Bb2 Qc7 16.Rc1 b617.Na4 Qc2 18.Rc2 Bb7; C) 13.Bb2 h6 (13...Nbd7 14.Qc2 Nb6 15.d4 Bd6 16.Nbd2 Bd717.Ra1 h6 18.Ne5 Qe7; 13...Bd6 14.Qc2 Nbd7 15.Nc3 Nb6 16.Ra1Qc7 17.Ba3 Ba3 18.Ra3 Bd7; 13...b6 14.Qc2 Nbd7 15.Nd4 Nc516.Nc6 Qc7 17.d4 Nce4 18.Ne7 Qe7; 13...Qb6 14.Nc3 Nbd7 15.Qc2Qc7 16.Rc1 Bd6 17.Qd1 Qa5 18.d4 Qb4; 13...g6 14.Nc3 Nbd7 15.Qc2Bd6 16.Ra1 Qc7 17.Ba3 Ba3 18.Ra3 b6; 13...Bc5 14.Qc2 Nbd7 15.d4Bd6 16.Nbd2 Re8 17.Ra1 h6 18.Bd3 Qc7; 13...Qc7 14.Qc1 Qc115.Rc1 Nbd7 16.d4 Nb6 17.Ba3 Ba3 18.Na3 Ne4; 13...Bb4 14.Qb3Bd6 15.d4 Ne4 16.Nc3 Nc3 17.Bc3 Nd7 18.Bb4 Nf6; 13...Re8 14.Nc3Nbd7 15.Qc2 Bd6 16.Ra1 Qc7 17.Ba3 Ba3 18.Ra3 h6) 14.Nc3 Nbd715.Qc2 Bd6 16.Ra1 Qc7 17.Ba3 Ba3 18.Ra3 Re8; D) 13.g3 h6 (13...Nbd7 14.Qc2 b6 15.Nd4 Nc5 16.Nc6 Qe8 17.Rc1Bb7 18.d4 Nce4; 13...b6 14.Qc2 Bb7 15.Bb2 Nbd7 16.Rc1 Bd617.Nc3 Qb8 18.Nd4 Rc8; 13...Bd6 14.Nc3 Nbd7 15.Bb2 e5 16.Qc2 e417.Nd4 Ne5 18.Ra1 Be6; 13...Re8 14.Qc2 Nbd7 15.Bb2 Bd6 16.Nc3e5 17.Ra1 e4 18.Nd4 Ne5; 13...Qa5 14.Bc3 Qd8 15.Bb2 Nbd7 16.Qc2b6 17.Nd4 Nc5 18.Nc3 Bb7; 13...Ne4 14.Nc3 Nd7 15.Qc2 f5 16.d3Nec5 17.Bb2 b6 18.Nd4 Qc7) 14.Qc2 Nbd7 15.Bb2 b6 16.Nd4 Nc517.Nc6 Qc7 18.d4 Nce4; E) 13.Qb3 b6 (13...Nbd7 14.d4 b6 15.Nbd2 Bb7 16.Bb2 Qb817.Ra1 Rc8 18.h3 h6; 13...g6 14.d4 Nbd7 15.Rc1 b6 16.Nbd2 Bb717.h3 Qb8 18.Bc3 Rc8; 13...Re8 14.d4 Nbd7 15.Rc1 Bd6 16.Nbd2Qe7 17.Ne5 b6 18.Nc6 Qf8; 13...h6 14.Bd4 Nbd7 15.Nc3 Bd6 16.Ra1e5 17.Ba7 b6 18.Nd5 Bb7) 14.Bb2 Nbd7 15.d4 Bb7 16.Rc1 Qa817.Nc3 Rc8 18.Ra1 Qb8; F) 13.h3 Nbd7 (13...Bd6 14.Qc2 Nbd7 15.Rc1 b6 16.Nc3 Bb717.Na4 Re8 18.Nd4 Ne4; 13...h6 14.Bb2 b6 15.Qc2 Bb7 16.Nd4 Bd617.Nc3 Qc7 18.Ra1 Nbd7; 13...b6 14.Nc3 Nbd7 15.d4 Bb7 16.Qd3 h617.Bb2 Qc7 18.Rc1 Rc8; 13...Bb4 14.Nc3 Nbd7 15.Qc2 Bd6 16.Bb2Nb6 17.Ra1 Qc7 18.Ba3 Ba3; 13...Bc5 14.Qc2 Nbd7 15.Bb2 Bd616.d4 b6 17.Rc1 Bb7 18.Ne5 Ne4; 13...Qc7 14.Be5 Bd6 15.Bd6 Qd616.Nc3 e5 17.Qa4 Nbd7 18.d4 e4) 14.Qc2 b6 15.Nc3 Bb7 16.Rc1 Qb817.Bb2 Rc8 18.Nd4 Bd6; G) 13.d4 Qc7 (13...Bd6 14.Qc2 Nbd7 15.Bb2 b6 16.Nc3 Bb717.Qb3 Ne4 18.Ra1 Qc7; 13...Nbd7 14.Qb3 Bd6 15.Nc3 Nb6 16.Bb2Qc7 17.Rc1 Nc4 18.b6 Qb8; 13...h6 14.Nc3 Qd6 15.Qb3 Nbd7 16.Bb2b6 17.Ra1 Qc7 18.Rc1 Qd6; 13...b6 14.Nc3 Qd6 15.Bb2 Bb7 16.Qb3Nbd7 17.Ra1 Qc7 18.Ra7 Rc8; 13...Ne4 14.Nc3 Nd7 15.Qb3 Ndf616.Rc1 Nc3 17.Bc3 Ne4 18.Bb4 Bd7; 13...Qb6 14.Nc3 Nbd7 15.Bb2Ne4 16.Qa4 Ndf6 17.Ne5 Bd6 18.Rc1 Rd8; 13...g6 14.Nc3 Nbd715.Qb3 b6 16.Rc1 Bb7 17.Bb2 Qc7 18.Bd3 Rc8) 14.Qb3 Nbd7 15.Bb2b6 16.Rc1 Qb8 17.Ba3 Bd6 18.Nbd2 Bb7.

12.0-0 Bd6 A) 13.Bb2 Qe7 (13...Be8 14.Nc3 Nbd7 15.d4 Ne4 16.Ne4 de417.Nd2 Nf6 18.Qc2 Qb6; 13...Bc8 14.Nc3 Nbd7 15.d4 b6 16.Qb3 Bb717.Bd3 Ne4 18.Ra1 Qc7) 14.Nc3 Rc8 15.Qc2 e5 16.Rc1 h6 17.d4 e418.Ne5 Be5; B) 13.Qc2 Be8 (13...Qa5 14.Bf6 gf6 15.Nc3 Rc8 16.Nd4 Be817.Qb2 Nd7 18.Ra1 Qb6; 13...Bc8 14.Bb2 Nbd7 15.Nc3 Nb6 16.e4Qc7 17.e5 Be5 18.Ne5 Qe5) 14.Nc3 Nbd7 15.Rc1 h6 16.Bb2 Qc717.g3 Nb6 18.Qb3 Qe7; C) 13.Qb3 Be8 (13...Qe7 14.Be5 Rc8 15.Nc3 Be8 16.Ra1 Nbd717.Bd6 Qd6 18.Qc2 e5) 14.Nc3 Nbd7 15.d4 Ne4 16.Ne4 de4 17.Nd2Nf6 18.Rc1 Bd7; D) 13.Be5 Be5 14.Ne5 Qc7 15.d4 Ne4 16.f3 Nd6 17.Qb3 f6 18.b6Qd8; E) 13.Nc3 Qe7 (13...e5 14.Bb2 Be6 15.Ng5 Nbd7 16.d4 Qe717.Qd2 Ra8 18.Ne6 Qe6) 14.Qb3 Rc8 15.Bb2 Be8 16.Ra1 Nbd7 17.d4Nb6 18.Ne5 Nfd7.

12.0-0 Be8+= A) 13.Nc3 Nbd7 (13...Bd6 14.Qc2 g6 15.d4 Nbd7 16.Rc1 Nb617.Ne5 Nfd7 18.Na4 Na4; 13...h6 14.d4 Nbd7 15.Qb3 Nb6 16.Bb2Qc7 17.Ne5 Nfd7 18.Rc1 Qd6) 14.Qc2 Nc5 15.d4 Nce4 16.Rc1 Nc317.Bc3 Ne4 18.Bb2 Bd6; B) 13.Bb2 Bd6 (13...Nbd7 14.Qc2 Bd6 15.Nc3 Qc7 16.Ra1 Nb617.Ba3 Ba3 18.Ra3 Bd7; 13...Ne4 14.Nc3 Nd7 15.Qc2 Ndc5 16.Ra1Bd6 17.Ne4 de4 18.Nd4 Qc7; 13...g6 14.Nc3 Nbd7 15.d4 Nb6 16.Qb3Qc7 17.Rc1 Nc4 18.Ne5 Nb2; 13...h6 14.Qc2 Nbd7 15.Rc1 Bd616.Nc3 Qc7 17.h3 Nb6 18.d3 Bd7) 14.Nc3 Nbd7 15.Qc2 Nb6 16.e4Be7 17.e5 Nh5 18.Bd3 Nc4; C) 13.d4 Bd6 (13...Nbd7 14.Qb3 Ne4 15.Nc3 f5 16.Bb2 Bh517.Re1 Bd6 18.Rc1 Qe7; 13...Ne4 14.Nc3 Nd7 15.Bb2 Ndf6 16.Qb3Nc3 17.Bc3 Qd6 18.Nd2 Bd7) 14.Nc3 Nbd7 15.Bb2 h6 16.Qb3 Ne417.Ne4 de4 18.Ne5 Be7; D) 13.Qc2 Nbd7 (13...Bd6 14.Nc3 Nbd7 15.Rc1 Nb6 16.Na4 Na417.Qa4 Qe7 18.Qd4 Bd7; 13...h6 14.Bb2 Nbd7 15.d4 Ne4 16.Rc1 Bd617.Nc3 f5 18.h3 Bh5) 14.Bb2 Bd6 15.d4 Ne4 16.Nc3 f5 17.Ra1 Bh518.h3 Qe7.

12.0-0 h6 A) 13.Bd4 Bc8 (13...Bd6 14.Nc3 Be8 15.Qb3 Nbd7 16.Ra1 e517.Ba7 b6 18.Nd5 Nc5; 13...Be8 14.Nc3 Nbd7 15.Qb3 Bd6 16.Na4Qb8 17.g3 e5 18.Bb2 Qd8) 14.Qc2 Nbd7 15.Bb2 Bd6 16.Nc3 b617.Ra1 Qc7 18.Ba3 Bb7; B) 13.Qb3 Bc8 (13...Bd6 14.Nc3 Bc8 15.d4 Nbd7 16.Bb2 Ne417.Ne4 de4 18.Ne5 b6; 13...Be8 14.Nc3 Nbd7 15.d4 Bd6 16.Bb2 Ne417.Ne4 de4 18.Ne5 Nb6; 13...Re8 14.Rc1 Qa5 15.Bc3 Qa7 16.Bd4Qa5 17.Nc3 Rc8 18.Ne5 Be8) 14.Rc1 Nbd7 15.d4 b6 16.Nbd2 Bb717.Bb2 Qb8 18.Ba3 Ba3; C) 13.Bb2 Qc7 (13...Be8 14.Nc3 Nbd7 15.d4 Ne4 16.Qa4 Nb617.Qb3 Nd6 18.Ba3 f6; 13...Bc8 14.Nc3 Nbd7 15.Qc2 Qc7 16.Rc1Bd6 17.b6 Qb6 18.Nb5 Ne4; 13...Qb6 14.Bd4 Bc5 15.Bf6 gf6 16.Qa4Bd6 17.Nc3 f5 18.Qh4 Kg7; 13...Ne4 14.Nc3 Qa5 15.Qa1 Bb4 16.Na2Bd6 17.Bg7 Re8 18.Bh6 e5) 14.Be5 Bd6 15.Bf6 gf6 16.Nc3 Bb417.Qb3 Qa5 18.Rb1 Bc5; D) 13.Be5 Be8 14.Qc2 Nbd7 15.Bb2 Bd6 16.d4 Ne4 17.Nc3 f518.Ra1 Bh5.

12.Bb2 A) 12...Qc7 A1) 13.0-0 Rc8 (13...Ne4 14.Nc3 Bf6 15.Qb3 Rc8 16.Rc1 Qb617.d4 Nd6 18.Ba3 Nc4; 13...Qb6 14.Nc3 Na6 15.Ne5 Nb4 16.Qa4 Qd617.d4 Rc8 18.Qa7 b6; 13...h6 14.Be5 Bd6 15.Bf6 gf6 16.Nc3 f517.Qa4 Rc8 18.Qh4 Kg7; 13...Rd8 14.Qb3 Ne4 15.Nc3 Rc8 16.Ra1Nc5 17.Qd1 f6 18.h3 Be8; 13...Re8 14.Nc3 Rc8 15.Qb1 Be8 16.Rc1Qd8 17.h3 Nbd7 18.d4 Bd6) 14.Qb3 h6 15.Be5 Qd8 16.Nc3 Be8 17.b6Bd6 18.Ra1 Nc6; A2) 13.Qb3 Rc8 (13...h6 14.0-0 Rc8 15.Rc1 Qb6 16.Rc8 Bc817.Bd4 Qd8 18.Nc3 Nbd7; 13...Ne4 14.0-0 Rc8 15.Nc3 Be8 16.Rc1Qd8 17.Qa4 Nd6 18.d3 Nd7; 13...g6 14.0-0 Rc8 15.Rc1 Qb6 16.Rc8Bc8 17.Bd4 Qd8 18.Nc3 Nbd7) 14.0-0 Qb6 15.Nc3 Be8 16.d4 Nbd717.Bd3 Ra8 18.Re1 h6; B) 12...Be8 B1) 13.Nc3 Nbd7 (13...Qc7 14.0-0 Nbd7 15.Qa4 Nc5 16.Qa7 Nfe417.Rc1 Bd6 18.Ba3 Nb3; 13...Bd6 14.0-0 Nbd7 15.d4 Nb6 16.Qb3Bd7 17.Ne5 Qc7 18.f4 Rc8) 14.0-0 Qc7 15.Qa4 Nc5 16.Qa7 Nfe417.Rc1 Bd6 18.Ba3 Nb3; B2) 13.Qc2 Bd6 (13...Nbd7 14.0-0 Nc5 15.Rc1 Bd6 16.Nc3 h617.h3 Qe7 18.d4 Nce4; 13...g6 14.0-0 Bd6 15.Nc3 Nbd7 16.Rc1 Nc517.Na4 Nfe4 18.Nc5 Nc5; 13...Bb4 14.Nc3 Bd6 15.0-0 Nbd7 16.Rc1Qc7 17.d3 Ne5 18.Nd4 Bd7; 13...h6 14.Nc3 Nbd7 15.0-0 Nb6 16.Na4Bd7 17.Ne5 Na4 18.Qa4 Ne4; 13...Ne4 14.Nc3 f5 15.0-0 Nd7 16.Nd4Qb6 17.Rc1 Bb4 18.Na4 Qd6; 13...Qb6 14.0-0 Nbd7 15.Rc1 Bd616.Nc3 Qc7 17.g3 Nb6 18.Qb3 Qe7) 14.Nc3 Nbd7 15.0-0 h6 16.Ra1Qc7 17.d4 Nb6 18.Ba3 Ba3; B3) 13.0-0 Bd6 (13...Nbd7 14.Qc2 Bd6 15.Nc3 Nc5 16.Rc1 Qb617.Na4 Na4 18.Qa4 Bd7; 13...g6 14.Qc2 Nbd7 15.Rc1 Bd6 16.d4 Ne417.Qb3 Ndf6 18.Ne5 Nd7; 13...h6 14.Nc3 Nbd7 15.d4 Ne4 16.Qb3Ndf6 17.Ra1 Nc3 18.Bc3 Ne4; 13...Ne4 14.d3 Nd6 15.Nc3 Nb516.Qb3 Nd6 17.e4 de4 18.Ne4 Nc6) 14.Nc3 Nbd7 15.d4 Qc8 16.Qb3Nb6 17.Ne5 Nfd7 18.Rc1 Qb8; C) 12...Qb6 C1) 13.0-0 Ne4 (13...Rc8 14.Bd4 Qd6 15.Nc3 Be8 16.Be5 Qd817.Qb3 Nbd7 18.Bd4 Ne4; 13...Rd8 14.Bd4 Bc5 15.Bf6 gf6 16.Nc3Qa7 17.Qc2 Rc8 18.Rc1 Bd6; 13...Re8 14.Bd4 Bc5 15.Bf6 gf616.Qa4 e5 17.Nc3 Be6 18.d4 ed4) 14.Nc3 Bf6 15.Qb1 Nc3 16.Bc3Bc3 17.dc3 Rc8 18.Rc1 g6; C2) 13.Bd4 Bc5 14.Bf6 gf6 15.Nc3 Qa5 16.0-0 Rc8 17.Bd3 f518.Qa1 Bb4; D) 12...Ne4 D1) 13.0-0 Qe8 (13...Qa5 14.Nc3 Rc8 15.Qa1 Bb4 16.Ne4 de417.Ng5 Qa1 18.Ra1 f5; 13...Qb6 14.Nc3 Rc8 15.Ne4 de4 16.Ne5 f617.Bd4 Qd6 18.Nc4 Qb4) 14.d3 Nd6 15.Nc3 Nb5 16.d4 Nc3 17.Bc3Bb5 18.Bd3 Bd3; D2) 13.Nc3 Qa5 (13...Qb6 14.0-0 Rc8 15.Qb3 Be8 16.d4 Nd717.Ra1 h6 18.Bd3 Ndf6; 13...Qc7 14.0-0 Bf6 15.Qb3 Rc8 16.Rc1Qb6 17.d4 Nd6 18.Ba3 Nc4; 13...Bf6 14.0-0 Qb6 15.Qb1 Nc3 16.Bc3Bc3 17.dc3 Rc8 18.Rc1 g6; 13...f6 14.0-0 Qb6 15.Qb1 Nc3 16.Bc3e5 17.Nh4 Bc5 18.Qb2 e4) 14.0-0 Qb4 15.Qa1 Rc8 16.Rb1 f6 17.h3Nc3 18.Bc3 Qa3; E) 12...Qa5 13.Nc3 Rc8 (13...Qb4 14.Qa1 Rc8 15.0-0 Be8 16.Ne1 e5 17.f4 Nbd7 18.Nd3 Qd6; 13...Ne4 14.0-0 Qb4 15.Qa1 Rc8 16.Rb1 f6 17.h3 Nc3 18.Bc3 Qa3; 13...Qc7 14.0-0 Rc8 15.Qb1 Bd6 16.Rc1 Qa5 17.g3 h6 18.Qa1 Qb4) 14.0-0 Qb4 15.Qa1 Be8 16.Ne5 Qd6 17.Nd3 e5 18.Na4 e4.

12.Nc3 A) 12...Qb6 A1) 13.Qb3 Rc8 (13...Bd6 14.0-0 Rc8 15.d4 Qa5 16.Rb1 Be817.Bb2 Nbd7 18.Bd3 Qb4; 13...Be8 14.0-0 Nbd7 15.d4 Ne4 16.Ne4de4 17.Ne5 Ne5 18.de5 Bd7; 13...Rd8 14.Na4 Qa5 15.Bc3 Qc716.0-0 Ne4 17.Be5 Qa5 18.Nc3 Qb4; 13...h6 14.0-0 Rc8 15.Na4 Qd816.Bd4 Ne4 17.Ra1 Bf6 18.d3 Nd6; 13...g6 14.0-0 Rc8 15.Na4 Qc716.Be5 Qa5 17.Ra1 Ne4 18.Qb2 f6; 13...Bc8 14.0-0 Nbd7 15.d4 g616.Bb2 Ne4 17.Ra1 Qc7 18.Bd3 Nd6; 13...Ne4 14.0-0 Rc8 15.Ne4de4 16.Ne5 f6 17.Bd4 Bc5 18.Nd7 Nd7; 13...Qd6 14.0-0 Rc8 15.Bb2Be8 16.Rc1 Nbd7 17.d4 Nb6 18.Ne5 Nfd7) 14.0-0 Be8 15.Na4 Qd816.Bd4 Nbd7 17.Ra1 Bd6 18.Qb2 Qe7; A2) 13.h3 Rc8 (13...Ne4 14.0-0 Rc8 15.Qa4 Nd6 16.Qg4 f6 17.Bd3Nc4 18.Qh4 h6; 13...Qa5 14.0-0 Rc8 15.Bb2 Be8 16.Qa1 Qb4 17.Ne5Qd6 18.Nd3 Nbd7; 13...Qc5 14.Bb2 Rc8 15.0-0 Qb4 16.Qa1 Be817.Ne5 Qd6 18.Nd3 e5; 13...Qd6 14.0-0 Rc8 15.d4 Be8 16.Bb2 Nbd717.Qb3 Qb4 18.Qb4 Bb4; 13...h6 14.0-0 Rc8 15.Na4 Qa5 16.Bc3 Qd817.Bd4 Be8 18.Nb6 Rc7) 14.0-0 Be8 15.Na4 Qd8 16.Bd4 Nbd7 17.Qb3Ne4 18.Ra1 f6; A3) 13.0-0 Rc8 (13...Bd6 14.Na4 Qa5 15.Bc3 Qa7 16.Qb3 Ne417.Bd4 Qa5 18.Nc3 f5; 13...Qd6 14.Bb2 Qb4 15.Qa1 h6 16.Rb1 Bc817.Na4 Nbd7 18.Bd3 Qa5) 14.Na4 Qa5 15.Bc3 Qc7 16.Bd4 Ne4 17.Qa1Bf6 18.Nb6 Qb6; B) 12...Ne4 B1) 13.Qa4 Nc5 (13...Qc7 14.0-0 f5 15.Ne4 de4 16.Be5 Qc517.Bd4 Qc7 18.Ne5 Bf6; 13...Nd6 14.0-0 Qb6 15.Bd3 f5 16.Qf4 Ne417.h3 Qa5 18.Be2 Bd6; 13...f5 14.0-0 Bd6 15.Rc1 Na6 16.Ne4 fe417.Qd4 Qe7 18.ba6 ef3; 13...Nf6 14.Qf4 Be8 15.0-0 Qd6 16.Bb2Qf4 17.ef4 Bd6 18.Ra1 Nbd7) 14.Qa7 Nb3 15.Bb2 Qa5 16.Qa5 Na517.Kd1 Nc4 18.Kc2 Rc8; B2) 13.0-0 Qa5 (13...Qc7 14.Qa4 Nd6 15.Qg4 f6 16.Nd4 f5 17.Qg3g6 18.Bb2 Qc5; 13...Nd6 14.Qc2 Qa5 15.Bb2 Rc8 16.Ra1 Qb6 17.Bd3f5 18.Nd4 Bf6; 13...Bd6 14.Bb2 f5 15.Qb3 Nc5 16.Qa2 Qb6 17.Ra1Ne4 18.Qa7 Bc5; 13...f5 14.Nd4 Qc7 15.f4 Nd6 16.Bb2 Bf6 17.Qa4Nc4 18.Bc4 Qc4) 14.Ne5 Nd6 15.Bd3 Rc8 16.Qf3 Be8 17.Qg4 g618.Qd4 f6; B3) 13.Bb2 Qa5 (13...Qb6 14.0-0 Rc8 15.Qb3 Nd6 16.Na4 Qa517.Bc3 Qc7 18.Bd4 Nc4) 14.0-0 Qb4 15.Qa1 Rc8 16.Rb1 f6 17.h3Bd6 18.Bd3 Nc5; B4) 13.Qb1 Qa5 (13...Nd6 14.0-0 Qb6 15.Bd3 f5 16.Qb2 Bf617.Qb3 Ne4 18.Na4 Qd6) 14.0-0 Nd6 15.e4 de4 16.Ne4 Nb5 17.Ne5Be8 18.Nc4 Qd8; C) 12...Qc7 C1) 13.Qb3 Rc8 14.0-0 Be8 15.Bb2 Nbd7 16.d4 Nb6 17.Ne5 Nc418.Nc4 dc4; C2) 13.Bb2 Rc8 14.0-0 Be8 15.Qa1 Nbd7 16.Rc1 Qd8 17.d4 Ra818.Qb1 Nb6; C3) 13.Qb1 Rc8 (13...Qd6 14.0-0 Rc8 15.Na4 Be8 16.Be5 Qd817.Bd4 Nbd7 18.Qb2 Bd6; 13...g6 14.0-0 Rc8 15.Rc1 Bd6 16.Na2Qd8 17.Be5 Be5 18.Ne5 Ne4; 13...Bd6 14.0-0 Rc8 15.Bb2 Be816.Rc1 Qd8 17.e4 Nbd7 18.ed5 ed5) 14.0-0 Be8 15.Rc1 Nbd7 16.Bb2Qa5 17.d4 Bd6 18.Qa1 Qa1; C4) 13.Qc2 Rc8 (13...h6 14.0-0 Rc8 15.Bb2 Be8 16.Rc1 Nbd717.Qd1 Qd8 18.Ra1 Qc7; 13...g6 14.0-0 Rc8 15.Rc1 Be8 16.Qd1 Qd817.Qb3 Nbd7 18.d4 Nb6) 14.0-0 Be8 15.Nd4 Nbd7 16.Bb2 Nb6 17.Ra1Nc4 18.Bc4 dc4; C5) 13.0-0 Rc8 (13...h6 14.Qb1 Rc8 15.Rc1 Bd6 16.Bb2 Qa517.Qa1 Qb4 18.Rc2 b6) 14.Bb2 Be8 15.Qc2 Nbd7 16.Nd4 Ne5 17.Ra1Nc4 18.h3 Bd7; D) 12...Qa5 D1) 13.Bb2 Rc8 (13...Qb4 14.Qa1 Rc8 15.0-0 Be8 16.Rb1 Nbd717.Qa7 Rc7 18.Bd3 Qc5; 13...Ne4 14.0-0 Rc8 15.Qa1 Bb4 16.Ne4de4 17.Ng5 Qa1 18.Ra1 f5) 14.0-0 Qb4 15.Qa1 Be8 16.Rb1 Nbd717.Qa7 Rc7 18.Bd3 Qc5; D2) 13.0-0 Rc8 (13...Qb4 14.Qc2 Rc8 15.Rb1 Qa5 16.Bb2 Bb517.Ra1 Qa1 18.Ba1 Be2) 14.Bb2 Qb4 15.Qa1 Be8 16.Rb1 Nbd7 17.Qa7Rc7 18.Bd3 Qc5.

12.Bd4 Qa5 (12...Be8 A) 13.0-0 Nbd7 (13...Bd6 14.Qc2 Nbd7 15.Rc1 e5 16.Bb2 Qb8 17.h3 Nb6 18.Nc3 e4) 14.Qc2 Bd6 15.h3 h6 16.Rc1 Qe7 17.Qa2 e5 18.Bb2 e4; B) 13.Qa4 Nbd7 14.Qa7 Qc8 15.0-0 Bd6 16.Bb2 Qc2 17.Ba3 Ne4 18.Bd6 Nd6; C) 13.Nc3= Nbd7 (13...Bd6 14.Be5 Be5 15.Ne5 Nbd7 16.Nf3 Nc5 17.0-0 Qd6 18.d4 Nce4) 14.Na4 Bd6 15.0-0 e5 16.Bb2 e4 17.Nd4 Nb6 18.Qb3 Bd7; 12...Bd6 A) 13.Nc3 Bc8 (13...Be8 14.0-0 Nbd7 15.Na4 e5 16.Bb2 e4 17.Nd4 Nb6 18.Qc2 Bd7) 14.Ne5 Nbd7 15.f4 Qc7 16.b6 Qb8 17.Nb5 Ne5 18.Nd6 Nc6; B) 13.Ne5 Be8 (13...Ne4 14.0-0 f6 15.Nd7 Nd7 16.f3 Ng5 17.h4 Nf7 18.f4 e5) 14.Nc3 Nbd7 15.f4 Qc7 16.Nd7 Bd7 17.b6 Qd8 18.0-0 Qe7; C) 13.Bb2 Qa5 (13...Qc7 14.Bf6 gf6 15.Nc3 f5 16.Qa4 Be7 17.g4 f4 18.ef4 Bd6; 13...Be8 14.0-0 Nbd7 15.Qc2 Ne4 16.Nc3 Ndc5 17.Rc1 Nc3 18.Bc3 f6; 13...Qe7 14.Nc3 Rc8 15.Qc2 e5 16.h4 Bg4 17.Qa4 e4 18.Nd4 Be2) 14.Bc3 Qd8 15.0-0 Be8 16.Bb2 Nbd7 17.Nc3 Qc7 18.Qa1 Nb6; D) 13.0-0 Bc8 (13...Be8 14.Qc2 Nbd7 15.Rc1 h6 16.Bb2 Nb6 17.Be5 Be5 18.Ne5 Ne4) 14.Bb2 Nbd7 15.Nc3 Qc7 16.Qa1 Qd8 17.Qa7 Ne4 18.Ne4 de4; 12...Bc8 A) 13.0-0 Nbd7 (13...Bd6 14.Bb2 h6 15.Qc2 Nbd7 16.Nc3 Qc7 17.Ra1 b6 18.d4 Bb7; 13...g6 14.Nc3 Nbd7 15.Qc2 Bd6 16.b6 e5 17.Nb5 ed4 18.Nd6 de3) 14.Qc2 Bd6 15.Bb2 b6 16.Nc3 Bb7 17.d4 Qc7 18.Rc1 Ra8; B) 13.Qc2 Nbd7 (13...Bd6 14.0-0 Nbd7 15.Bb2 b6 16.Nc3 Bb7 17.d4 Qc7 18.Rc1 Ra8; 13...h6 14.Nc3 Nbd7 15.0-0 Bd6 16.b6 e5 17.Nb5 ed4 18.Nd6 de3; 13...Re8 14.Be5 Bd6 15.d4 Ne4 16.0-0 Be5 17.de5 Nd7 18.Nbd2 Nd2; 13...g6 14.Nc3 Nbd7 15.b6 Nc5 16.0-0 Qb6 17.Rb1 Qa7 18.Nb5 Qa4) 14.0-0 Bd6 15.Bb2 b6 16.Nc3 Bb7 17.Rc1 Qc7 18.Qd1 Qb8; C) 13.Bb2 Nbd7 (13...Qc7 14.0-0 Nbd7 15.Qc1 Qb8 16.Nc3 Bd6 17.b6 e5 18.h3 Nb6) 14.Qc2 Bd6 15.0-0 b6 16.Nc3 Bb7 17.d4 Qc7 18.Rc1 Ra8; D) 13.Ba1 Nbd7 14.Qc2 Qa5 15.Bb2 Nc5 16.Nc3 Bd7 17.Ne5 Qc7 18.Nd7 Qd7; E) 13.Nc3 Nbd7 14.0-0 Bd6 15.Na4 e5 16.Bc3 e4 17.Nd4 Ne5 18.Qb3 Qc7; 12...Ne4 A) 13.0-0 Bf6 (13...Be8 14.Nc3 Nd7 15.Qc2 f5 16.Ra1 Bh5 17.d3 Nec5 18.Na4 Na4; 13...Qa5 14.Nc3 Rc8 15.Qb3 h6 16.Rc1 Bb4 17.g3 f5 18.Kg2 Bd6; 13...Nd6 14.Nc3 Nf5 15.Bd3 Nd4 16.Nd4 g6 17.f4 Bf6 18.Qf3 Qa5) 14.Nc3 Bd4 15.ed4 Qc7 16.Qb3 Rc8 17.Rc1 h6 18.g3 Qd8; B) 13.Nc3 Qa5 (13...Bf6 14.0-0 Bd4 15.ed4 Qc7 16.Qb3 Rc8 17.Ne4 de4 18.Ng5 Qd6; 13...Nc3 14.Bc3 Qb6 15.0-0 Rc8 16.Qb1 Be8 17.Bd4 Qd8 18.h3 Nd7; 13...Be8 14.Qc2 f5 15.0-0 Nd7 16.Rc1 Qa5 17.Ne5 Ne5 18.Ne4 fe4) 14.0-0 Rc8 15.Qb3 h6 16.Rc1 Bb4 17.g3 Be8 18.Rc2 Bc3) 13.Nc3+= (13.Qb3 Ne4 (13...Qb4 14.Qb4 Bb4 15.Bc3 Rc8 16.0-0 Bd6 17.Be5 Be5 18.Ne5 Ne4; 13...Rd8 14.Nc3 Be8 15.0-0 Nbd7 16.Rc1 Bd6 17.Na4 Ra8 18.Ra1 Qb4; 13...Be8 14.0-0 Nbd7 15.Rc1 Ne4 16.Nc3 f5 17.Qb2 Qa3 18.Qa3 Ba3; 13...Rc8 14.0-0 Be8 15.Nc3 Nbd7 16.Qb2 Ra8 17.h3 Bd6 18.b6 Nc5; 13...h6 14.0-0 Rc8 15.Nc3 Ne4 16.Rc1 Bb4 17.g3 Be8 18.Rc2 Bc3) 14.0-0 Bc5 15.Rc1 Rc8 16.Bd3 Bd4 17.Rc8 Bc8 18.ed4 Bd7) 13...Bb4 (13...Ne4 14.0-0+= Rc8 15.Qb3 f5 16.Ne4 fe4 17.Ne5 Bd6 18.Qb2 Qb4; 13...Rc8 14.0-0 Ne4 15.Qb3 h6 16.Rc1 Bb4 17.g3 Be8 18.Rc2 Bc3) 14.0-0 (14.Qb1 Bc8+- 15.0-0 Nbd7 16.Qb2 Qa3 17.Qa3 Ba3 18.b6 Bc5) 14...Ne4+= (14...Bc8 15.Qb3 Nbd7 16.Qb2 Qa3 17.Qa3 Ba3 18.b6 Bc5) 15.Qb3 Nd6?? (better 15...Bc3 16.Bc3 (16.dc3 Rc8 17.Rc1 f6 18.Bd3 Nc5) 16...Nc3 17.dc3 Rc8+= 18.c4 Rc5; 15...Bc5 16.Bc5 Nc5 17.Qb2 Rc8 18.Ra1 Qc7) 16.Nd5!+- ed5 17.Ra1 Qc7 (17...Ba3 18.Ra3 (18.Qa3?! Qa3 19.Ra3 Bb5 20.Bb5 Nb5+-) 18...Qc7 19.Ra1+-) 18.Qb4 Nc4 (18...Ne4 19.Be5 Qc2+-) 19.d3 Nd6 (19...Nb6 20.Be5 Qd8+-) 20.Be5 (20.Be5 Bb5 21.Bd6+-) 1–0. Anonymous – qoloq, internet, 2011.

9.c4 dc4 10.Bc4 0-0 11.0-0 c6 12.Nc3 Bb4 13.Qc2 Bc3 14.Bc3 cb5 15.Bd3 Bc6 (15...h6 16.Rb1+=) 16.Bf6+- Qf6 17.Bh7 Kh8 18.Be4 Rc8 19.d4 Bd7 (19...Nd7 20.Ra1+-) 20.Qb1 Qe7 (20...Bc6 21.Rc1 Rc7 22.Bd3+-) 21.Bb7+- Rc7 22.Be4 f5 (22...b4 23.Ne5+-) 23.Ne5 Qf6 (23...Kg8 24.Bf3+-) 24.Rc1 Rc1 25.Qc1 fe4 26.Qc7 Be8 (26...Kh7 27.Qb8 Qe7+-) 27.Qb8 b4 28.Qe8 Kh7 29.Nf7 Qf5 (29...g5+-) 30.Qh8 Kg6 31.Ne5 Kf6 32.Qd8 1–0. GuestJZGM – GuestWXNL, freechess.org, 2017.

9.c4 dc4 10.Bc4 c6 11.Nc3 cb5 (11...Qa5 12.Qb1=) 12.Nb5 Qb6 13.Qb1 Bc5 (13...0-0 14.d3=) 14.Ng5 (14.0-0 Na6+-) 14...0-0?? (better 14...Be7 15.0-0 Na6+=) 15.Bf6+- (15.Bf6 g6 16.0-0+-) 1–0. GuestFQTS – GuestKTRD, freechess.org, 2018.

9.c4 c6 10.Nc3 0-0 11.cd5 ed5 12.Bd3 Bg4 13.0-0 c5 14.h3 Bh5 15.g4 Bg6 16.Bg6 hg6 17.d3 Nbd7 18.g5 Nh7 19.Nd5 Ng5 20.Ng5 Bg5 21.d4 Kh7 22.Qg4 f5 23.Qg2 f4 24.ef4 Bf4 25.Nf4 Rf4 26.Qb7 cd4 27.Qd5 Qe7 28.Bd4 Rf5 29.Qc6 Rg5 30.Kh2 Ne5 31.Qc3 Qb7 32.f3 Qb5 33.Re1 Nd3?? (better 33...Nc6 34.f4 Rd5=) 34.Qc7+- Ne5 35.Be5 Re5 36.Qe5 (36.Qe5 Qe5 37.Re5+-) 1-0. onur604 (2320) - ChessBlundersAi (2100), Casual Rapid game, lichess.org, 2021.

9.Be2 0-0 10.0-0 Ne4 11.d3 Ng5 12.Ng5 Bg5 13.c4 dc4 14.dc4 Bf6 15.Nc3 c6 16.Ne4 Ba1 17.Qa1 Be8 (17...Qc7 18.Rd1+/-) 18.Rd1 Qe7 (18...Qc7!?+/-) 19.Qa7+- 1-0. WG_Anonymous – Anonymous, lichess.org, 2021.

9.c4 dc4 10.Bc4 Nb6 11.d3 =.

9.c4 dc4 10.Bc4 Nb6 11.Be2 0-0 12.Nc3 c6 13.0-0 (13.bc6 bc6 14.0-0 Nbd5=) 13...Nbd5 (13...Bd7 14.d4=) 14.Nd5 ed5 (14...Qd5 15.bc6 Qc6 16.Qb1+=) 15.bc6+= bc6 16.Ne5 (16.Qc2 Qd6+=) 16...Bb7 (16...Qc7 17.Qc2 c5 18.Nf3=) 17.Qc2 c5 18.Bb2 (18.Rb1 Qc7+=) 18...Qc7 19.Ra1 Ra8 (19...Bd6 20.Nf3+=) 20.Ra8 Ba8 21.f4 Qa7 0–1. GuestYNJM – GuestCLJY, freechess.org, 2019.

9.c4 dc4 10.Bc4 Nb6 11.Be2 0-0 12.Bf6 Bf6 13.d4=+.

9.c4 dc4 10.Bc4 Nb6 11.Be2 Bd7 12.Nc3 (12.Bf6 Bf6 13.d4 0-0=) 12...0-0 13.0-0 Qa8 (13...Bd6 14.d4=) 14.Qc2 Rd8 15.Bb2 Be8 (15...Bd6 16.Ra1 Qb8 17.d4+=) 16.Ra1+= Qc8 17.e4 (17.d3 Qd7+=) 17...c5 18.bc6 (18.e5 Nfd5+=) 18...Bc6= 19.Rc1 Qd7 20.d4 Rc8 21.Qd3 (21.Qb3 Qd8 22.Bd3 Bd6=) 21...Bb4 (21...Bd6 22.Ne5 Be5 23.de5 Qd3 24.Bd3=) 22.Ne5+= Qd8 (22...Qd6 23.Nc6 Rc6 24.e5+-) 23.Nc6 Rc6 24.Na2 (24.Nb5 Qc8 25.Ra1 Nc4+=) 24...Rc1= 25.Bc1 Be7 26.Nc3 Qa8 (26...Qd6 27.e5 Qd7 28.ef6 Bf6 29.Be3+-) 27.Qb1 Qa5 28.Bd2 Bb4 29.Qc1 h6 30.f3 Na4= 31.Nb1 Bd2 32.Nd2 Qb6 33.Qc8 Kh7 34.Qc4 Qa5 35.Qc2 g6 36.Kf1 Nc3= 37.Nb3 Qb4 38.Bd3 Nd7 39.h4 h5 40.g4 hg4 41.fg4 Nb5 42.Bb5+= Qb5 43.Kf2 Nf6=+ 44.Nd2 Ng4 45.Kf3 Nf6 46.e5 Qd5 47.Ke3? Ng4-+ 48.Kf4 Qd4 49.Ne4? Ne5 50.Qc7 Nd3 51.Kf3 Ne1 52.Kf4 e5! 53.Kg5 Qe3 54.Kf6 Qf4 55.Ke7 Qe4 56.Kf7 Qf5 57.Ke8 Kh8 58.Qc1 Qe6 (59.Kd8 Nd3 60.Qh6 Kg8-+) 0–1. Behnicke,Eckhard – Abhau,Jochen, Ruhrgebiet VK3–chT, 1995.

9.c4 Nc5 10.d4 (better 10.Bd4=) 10...dc4?? (better 10...Nce4 11.Nbd2 Bb4=+) 11.dc5+- Qd1 12.Kd1 Bc5 (12...Ne4 13.Ke1+- (13.Bg7 Rg8-/+)) 13.Bc4 b6 14.Ke2 e5 (14...Bb7+-) 15.Be5 Bg4 (15...Bd6 16.Nc3 Be6 17.Be6 fe6 18.Bd6 cd6 19.Ra1+-) 16.h3 Be6 (16...Bf3 17.Kf3 Ke7 18.Rd1+-) 17.Be6 fe6 18.Bc7 Nd5 (18...Ke7 19.Nc3 Ra8 20.Be5+-) 19.Be5 Rg8 (19...Ke7 20.Nc3 Nf6 21.Ra1+-) 20.Nc3 Nb4 (20...g5 21.g4+-) 21.Ne4 (21.Ra1 Be7+-) 21...Be7 (21...Ke7 22.Ra1 Rd8 23.Bg7+-) 22.Ra1 Kf7 23.Ra7 Nd5 24.Neg5 Kg6 25.Ne6 Bf6 26.e4 Be5 27.ed5 Rc8 (27...Bd6+-) 28.Ne5 Kf6 29.f4 Kf5 30.Rf7 (30.Ke3 Rc3 31.Kd4 Rc4 32.Nc4 Kg6 33.Ne5 Kh5 34.Ng7 Kh4 35.Nf5 Kh5 36.Rh7) 30...Ke4+- 31.d6 Rc2 32.Kd1 Rg2 33.d7 Rg1 (33...g6 34.d8Q Rg1 35.Ke2 Rg2 36.Kf1 Rf2 37.Kf2 h6 38.Qd4) 34.Ke2 Rg2 35.Kf1 Ke3 (35...Rd2 36.Ng5 Ke3 37.Ng4 Kd3 38.d8Q Kc2 39.Ne3 Kc1 40.Rc7 Kb2 41.Qd2 Kb3 42.Qd3 Ka4 43.Nd5 h6 44.Ra7) 36.Kg2 (36.Kg2 Kd2 37.d8Q Kc2 38.Qd3 Kc1 39.Nc4 h6 40.Nd4 g6 41.Qc2) 1–0. GuestYJNH – rockbeppe, freechess.org, 2019.

9.c4 c6 10.Nc3 0-0 11.Be2 cb5 12.Nb5 (12.cd5 b4 13.de6 bc3 14.ed7 cd2 15.Qd2 Bd7=) 12...dc4 13.Bc4 Nb6 (13...b6 14.0-0=) 14.Be2 Bd7 15.0-0 Nbd5 (15...Bc6 16.Qb1=) 16.Qc2 (16.Be5 Ng4=) 16...Qa5 17.Nbd4 (17.Rb1 Rc8 18.Qb3 Ne4=) 17...Rc8 18.Qb3 (18.Qb2 Qc7=) 18...Rb8 (18...Qb4 19.Qd3=) 19.Bb2 b5 (19...Qb4 20.Ra1=) 20.Ne5 Qa4= 21.Nd7 Qb3 22.Nf6 Bf6=+ 23.Nb3 Bb2 24.Rb1 Bf6 25.Bf3 Nc7 26.Na5 Nd5 27.g3 Rb6= 28.e4 Ne7 29.Be2 b4 30.Nc4 Rb8 31.e5 Bg5 32.f4 Bh6 33.h4 g6 34.g4? Bf4-/+ 35.g5? Nc6 (36.Kf2 Ne5 37.Ne5 Be5-+) 0–1. Johansen,Henning – Hansen,Svend, Copenhagen, 1983.

9.c4 c6 10.cd5 ed5 11.bc6 bc6 =.

9.d4 0-0 10.c4 Ne4 11.cd5 ed5 12.Bd3 Ndf6 13.0-0 c6 14.bc6 bc6 15.Ne5 Bd6 16.Nf3 (16.f3 Ng5+=) 16...Bb8 17.Nbd2 Qd6 18.g3 Ng4 (better 18...Qa3!? 19.Qb3 Qb3 20.Nb3 Ng4=) 19.Ne4+/- de4 20.Be4 f5 21.Bc2 Kh8 22.Ne5 Qe7? (22...Ne5 23.de5 Qe7 24.Qd4+-) 23.Ng4 (better 23.Nc6 Qd6 24.Nb8 Qb8 25.d5+-) 23...fg4 24.Qd3 g6?? (better 24...Bf5 25.e4 Bg6+-) 25.Rb1 (25.d5 Kg8 26.dc6 Kf7 27.Bb3 Be6+-) 25...Bf5 (25...Qf7 26.Qd2 (26.Rb8?? Qf2 27.Kh1 Qe1 28.Qf1 Qf1) 26...Bd6 27.d5 Kg8 28.dc6+-) 26.Qd2 Bd6 27.Bc3 (27.d5 Be5 28.Bf5 Ba1 29.Ra1 gf5 30.Qd4 Qg7 31.dc6 Qd4 32.ed4 Kg7+-) 27...Kg8 28.Bf5 Rf5 29.Bb4?? (29.Qa2 Rf7+-) 29...Bb4?? (better 29...Rb5 30.Qa2 Qf7 31.Qa8 Kg7=+) 30.Qb4 Qf7 31.Qb3 (31.Qb8 Qf8 32.Qb3 Qf7+-) 31...Kg7? (better 31...Rf2 32.Qf7 Rf7 33.Rb8 Kg7=) 32.Qf7 Kf7 33.Rc1 (better 33.Rb7 Ke6 34.Rh7+-) 33...Kg7?? (better 33...Rf6+/-) 34.Rc5 (better 34.Rc6 h5 35.e4+-) 34...Rf6 (better 34...Rc5!? 35.dc5 Kf6=) 35.Rc4 h6 36.Rc3 h5 37.Rc1 h4?? (better 37...Kf7+/-) 38.Rc6 (better 38.gh4 Kf7 39.Rc5+-) 38...hg3 (better 38...Rc6 39.gh4 Rf6-+) 39.Rf6+- Kf6 40.hg3 Kf5 41.Kg2 Ke4 42.f3! gf3 43.Kf2 g5 44.g4 (44.g4 Kd5 45.Kf3+-) 1-0. TimC (2365) - CharliePuth (2445), Rated Bullet game, lichess.org, 2015.

9.d4 c5 10.c4 cd4 11.ed4 (11.Bd4!? e5 12.Bc3=+) 11...Bb4 12.Nbd2 Ne4 13.Be2? (better 13.Qa4 Bd2 14.Nd2 Nd2 15.Kd2 Qg5 16.Kd1-/+) 13...Ndf6?? (better 13...Qa5 14.Bb2 Nb6-+) 14.0-0= Nd2 15.Nd2 Bd2 (15...Qa5 16.Nf3=) 16.Qd2+= dc4 17.Bc4 0-0 18.d5 (18.Bb2!?+=) 18...Nd5= 19.Qe2 Qg5 20.Qe4 1–0. GuestXFZF – GuestHPRM, freechess.org, 2019.

9.d4 c6 10.c4 Ne4 11.bc6 (11.Nbd2 Bb4 12.cd5 Qf6-/+) 11...Qa5=+ 12.Nbd2 bc6 13.Bd3 Nd2 (13...Bb4 14.Ke2 (14.Be4? de4 15.0-0 ef3 16.Nf3 Qa2-+) 14...Ba6 15.Qc2 (worse 15.Ne4 de4 16.Be4 Bc4 17.Bd3 Qa2 18.Nd2 Nb6-/+; 15.Be4? de4 16.Qb3 ef3 17.Nf3 Nb6-+) 15...Nd2 16.Nd2 Bd2 17.Qd2=) 14.Nd2 dc4 (14...Bb4 15.Ke2=+) 15.Bc4= Bb4 16.Ke2 (16.Bb2 c5 17.e4 Nb6-+) 16...Ba6=+ 17.Qc2 0-0 (17...Bd2!? 18.Ba6 Be3 19.Ke3 Qa6=) 18.Ba6= Qa6 19.Qc4 Qa5 20.Qc6 Nb6 21.Nb3 Qa2 22.Kf3 Qb3 23.Qb6 Qd5 24.Ke2 Qh5 (24...Qg2 25.Rb1 Ba3 26.Qc7=+) 25.f3 Qg6 26.Kf2 Rc8 27.g4 Be7 (27...Qc2 28.Kg3 Qd2 29.Qa6=+) 28.Qb7 (28.e4!?=+) 28...Rc2-/+ 29.Kg3 Bd6 30.f4 h5 31.h3 Qd3 (31...Qd3 32.Qf3 Re2-+) 0–1. DEFFM – GuestPBDC, freechess.org, 2018.

9.Be2 c5 10.c4 0-0 11.0-0 Qc7 12.Qc2 e5 (12...Bd6 13.d3=) 13.cd5+= e4 (13...Nd5!? 14.Qe4 N5f6 15.Be5 Ne5 16.Qe5 Bd6+=) 14.Ng5+- Bd6 15.g3 Re8 (15...Nd5 16.Bc4 N5f6 17.Nc3+-) 16.Nc3 Nb6 (16...Re5 17.Nge4 Ne4 18.Ne4 Rd5 19.f4+-) 17.Nce4 Ne4 18.Ne4 Bh3?? (better 18...f5 19.Nd6 Qd6+-) 19.Ng5 (19.Ng5 g6 20.Nh3 Nd5 21.Ng5+-; 19.Nd6?! Qd6 20.Rc1 Qd5+-) 1–0. DEFFM – GuestQGBV, freechess.org, 2018.

9.Be2 c5 10.bc6 Nc6 11.0-0 Ne4 12.d3 Nd6 (12...Nf6 13.Nbd2 Qc7 14.c4 e5 15.Qb3 Rd8 16.Rb1 d4 17.Qb5 de3=) 13.Nbd2 Bf6 (13...Qc7 14.Qb1 b5 15.e4 Bd7 16.Qb3 de4 17.de4 b4=) 14.c3 (14.c4 b5 15.cb5 Nb5 16.Qa4 Nba7 17.Rc1 Ba1+=) 14...Qa5 (14...e5 15.c4 dc4 16.dc4 Qa5 17.Qc2 Bf5=) 15.Nb3 (15.c4 Be7 16.Nb3 Qa7 17.c5 Ne8+=) 15...Qa2 (15...Qa4 16.c4 dc4 17.dc4 Nc4=) 16.Nfd2 (16.Qb1 Qb1 17.Rb1 e5=) 16...Nb5 (16...e5 17.Bf3 Be6=) 17.Qc1 (17.d4 Nd6+=) 17...Be7 (17...e5=) 18.c4 Nc7 19.c5 Na5? (better is 19...e5+=) 20.Qc3+- Bf6? (20...f6 21.Qa5 Qa5 22.Na5 Bc5+-) 21.Qa5 Qa5 22.Na5 e5 23.Rb1 Ne6 24.Ndb3 (24.c6 bc6 25.Nc6 Re8 26.Ne5 Ba6+-) 24...Nd8 25.Bf3 Be6 26.Kf1 g5 27.Ke1 g4 28.Be2 h5 29.f4 gf3 30.Bf3 h4 31.Ke2 Re8 32.Bc3 d4 33.Bb4 de3 34.Nb7 Nb7 35.Bb7 Bg5 36.h3 Rd8 37.c6 Bf5 38.Rd1 Bg6 39.c7 Bh5 40.Bf3 Bf3 41.Kf3 Rc8 42.Bd6 f6 43.Na5 Ra8 44.Nc4 e2 45.Ke2 Ra2 46.Kf3 (46.Kf3 Kg7 47.c8Q+-) 1–0. Tejera Santana,S (1940) – Roque Hernandez,F, Vecindario ESP, 1st Open, 2011.

9.Be2 c6 10.0-0 Qc7 11.c4 e5 12.Qb3 e4 13.Nd4 Ne5 (13...Bd6 14.f4=) 14.Rc1 (14.cd5!? cd5 15.b6+=) 14...Nc4 15.Bc4 Ng4 16.g3 (16.f4 ef3 17.Nf3 dc4 18.Qc4+=) 16...h5?? (16...dc4 17.Qc2 c5=+) 17.Bd5!+- 0-0 (17...cd5 18.Rc7) 18.bc6 Qd6 (18...bc6 19.Be4 c5+-) 19.cb7 Be6 (19...Bd7+-) 20.Be6 fe6 21.Ne6 (21...Qd3 22.Qd3 ed3 23.Rc8+-) 1–0. Hasler,Ulrich – Gusgaard, corr ICCF/III54, 1965.

9.Be2 Bd6 10.0-0 =.

9.Be2 Bd6 10.Nd4 =.

9.g4 0-0 10.g5 Ne4 11.h4 =+.

9.g4 Ng4 10.Rg1= Ngf6 11.Rg7 Rg8 12.Rg8 Ng8 13.Bd3 (13.Ne5 Ngf6=) 13...Nf8 (13...Ngf6 14.Ne5=) 14.Ne5 (14.Bd4 Nf6=) 14...Nf6 (14...Ng6 15.Qf3 Nf6 16.Bd4=) 15.Qf3 (15.Bd4 N8d7=) 15...Ng6 16.Bg6 (16.Bd4 Ne5 17.Be5 c5=) 16...fg6 (16...hg6 17.Bd4=) 17.Bd4 Bd7 18.Nc3 (18.c4 c6=) 18...c5 19.bc6 bc6 20.Na4 Qb8 21.Nb6 Qd6 (21...Qb7 22.d3+/– (22.Ned7?! Nd7 23.Nd7 Qb1 24.Ke2 Kd7=+; < 22.Nbd7 Nd7 23.Qf7 Kd8+/–)) 22.Nbd7 (22.Ned7?! Nd7 23.Nd7 Kd7=) 22...Nd7 23.Qf7 Kd8 24.Nd7 (24.Qg8 Kc7 25.f4 c5+/–) 24...Kd7 25.f4 Kc8 (better is 25...g5!? 26.Be5 Qa3+=) 26.Qh7+- e5 (26...g5 27.fg5 Bg5 28.Qg8 Bd8 29.Bb6+-) 27.Be5 Qe6 28.Kf2 c5 29.Kg3 Kb7 30.Qh3 Qc6 31.c4 dc4 32.Qg2 Qg2 33.Kg2 Kc6 34.e4 Kd7 35.Kf3 Ke6 36.Bc3 Bh4 37.Kg4 Bf2 38.Kg5 (38...Kf7 39.f5 gf5 40.ef5+- (40.Kf5?! Bh4+-)) 1–0. Poley,Vladimir (2290) – Nielsen,Tommy (2250), Gistrup, 1992.

10.Qc2 dc4 11.Bc4= Nb6 (11...b6 12.Nc3=) 12.Be2 Bd7 (12...Nbd5 13.0-0+=) 13.0-0 (13.Bd4 Nbd5+=) 13...Qa8 (13...Nfd5 14.Bd4+=) 14.Nc3 (14.Bd4 Nfd5+=) 14...Rc8 (14...Qe8 15.Bd3+=) 15.Ne5+/– Be8 (15...c6 16.Nd7 Nfd7 17.bc6 Rc6 18.Bf3+=) 16.f4 (16.Bb2 Qb8 17.f4 Nfd5+/–) 16...Nbd7 (16...c6 17.bc6 Bc6 18.Bb2+/–) 17.Nf3 (17.Bb2 Qb8+/–) 17...c6 (17...Qa7 18.Bb2+=) 18.bc6+/– bc6 19.Ng5 (19.Bb2 Rb8+/–) 19...h6+= 20.Nge4 (20.Nf3 Rb8+=) 20...Nd5 21.g4 (21.Bb2 Rb8+=) 21...Qa7 (21...Rb8 22.Bb2=) 22.Kg2 (22.Nb5 Qb8 23.Nd4+=) 22...Qe3? (22...Ra8=) 23.Kh1?? (better is 23.Qb2 Nf4 24.Kh1+/–) 23...Qa7 (23...Qh3 24.Nd5 ed5 25.Ng3+=) 24.f5 (24.g5 Nf4 25.gh6 gh6 26.Rg1 Ng6-/+) 24...Nc3 (24...Nb4!? 25.Qb1 e5-/+) 25.Bc3+= e5 26.f6 (26.Ra1 Qc7+=) 26...Nf6 27.Be5 Ne4 28.Qe4 c5 29.Qf5 Qd7 30.Qd7 Bd7 31.Kg2 Be6 32.Bf4 Ra8-/+ 33.Rc1 Ra4 34.Be3 Bg4 35.Bg4 Rg4 36.Kf3 Rh4 37.Bc5 Bc5 38.Rc5 Rh2 39.Rc8 Kh7-+ 40.d4 Kg6 41.Ke4 Re2 42.Kd5 h5 43.Rc6 Kf5 44.Rc5? h4 45.Kc6 Kg4 46.d5 h3 47.d6 h2 48.Rc1 Rd2 49.d7 Kg3 50.Kc7 Kg2 51.d8Q Rd8 52.Rc2 Kg3 53.Rc3 Kg4 54.Rc4 Kg5 55.Rc5 f5 56.Kd8 h1Q 57.Ke7 Qe4 58.Kd6 Qd4 59.Rd5 Qd5! 60.Kd5 f4 61.Ke4 Kg4 62.Kd3 Kg3 63.Ke2 Kg2 (63...Kg2 64.Kd2 f3-+) 0–1. Svitek,Volker – Polak,Petr (2175), Prague Cedok op, 1996.

10.Qc2 c6 11.bc6 bc6 12.cd5 cd5 13.Be2 Qa5 14.Bc3 Qc7 15.Qb2 Bb7 16.Na3 Rb8 17.Nb5 Qc5 18.0-0 Ba6 19.Rb1 Ne4 20.Bd4 Qc6 21.Bf1 Bc5 22.Bg7 f6 23.Bh6 Nd6 24.Nfd4 Bd4 25.Qd4 Nf5 (25...Nb5?! 26.Qg4 Kf7 27.Qg7 Ke8 28.Qh8 Ke7 29.Qh7 Kd8 30.Bg7=; < 25...Bb5 26.Qg4 Kf7 27.Qg7 Ke8 28.d3-/+) 26.Qg4 Kh8 27.Bf4 Rb7 (27...Rb5?! 28.Bb5 Bb5 29.d4=) 28.Qh5 (28.Bd3 Bb5 (28...Rb5?! 29.Bb5 Bb5 30.d4=) 29.Bb5 Rb5-+) 28...Nf8 (28...Bb5 29.Qe8 Kg7 30.g4-+) 29.g4 Ng7 30.Qh6 Bb5 31.Qf6 Kg8 32.d3 Ne8 33.Qd8 Ng6 34.Bg3 Kf7 35.h4 Ba6 36.Ra1 Ne7 37.Qa5 Rb6 38.Be5 Bb7 39.Rc1 Qc1 40.Qb6 Bc8 41.Qb3 Nf6 42.Qa4 Nd7 43.Bd6 e5 44.g5 Nf8 (44...Nf5!? 45.Ba3 Qc3-/+) 45.Be5 Nfg6 46.Qa1 Qa1 47.Ba1 Nh4 48.f4 Nef5 49.Kf2 Nd6 50.Be2 Ba6 51.Be5 Nhf5 52.Bf3 Bb7 53.Bh5 Ke6 54.g6 hg6 55.Bg6 Ne7 56.Bh7 Ndf5 (56...Nc6!? 57.Bg8 Nf7-/+) 57.e4 ½–½. Cottarelli,Franco – Ruhle,Ernst_Olav, corr ICCF TT/6/02/2, 2005.

10.Qc2 Bd6 11.Nc3 +=.

10.Qc2 Re8 11.Bd4 =+.

10.Nc3 Nb6?! 11.Qb3! dc4 12.Bc4 Nc4 13.Qc4.

10.Nc3 Nb6 11.Qb3 dc4 12.Bc4 Qd6 13.Na4 Nc4 14.Qc4 =.

10.Nc3 Nb6 11.Qb3 Qd6 12.cd5 (12.Na4 Nbd7=+) 12...ed5=+ 13.Be2 Qa3 (13...Be6 14.Nd4=+) 14.Qa3= Ba3 15.0-0 (15.Nb1 Be7=) 15...Bf5 16.Nb1 Bd6 (16...Be7 17.Rc1 Nfd7 18.g4=) 17.Be5 (17.Bf6 gf6 18.Nc3 Ra8=) 17...Be5 18.Ne5 Ra8 19.Nc3 Kf8 (19...Ne4 20.Ne4 de4 21.f3=) 20.f4 (20.Rc1 Ke7=) 20...Nfd7 21.Bf3 Ne5=+ 22.fe5 Be6 23.Rc1 Ke8 24.e4 c6 25.bc6 bc6 26.Ne2 Nc4? 27.ed5+- Bd5 28.Rc4! Bc4 29.Bc6 Ke7 30.Ba8 Be2 31.Be4 h6 32.Kf2 Bd1 33.Ke3 f6 34.Bf3 Ba4 35.Kf4 Ke6 36.Bg4 Ke7 37.Be2 Bd7 38.d4+- Ba4 39.Bd3 Bd7 40.d5 fe5 41.Ke5 Ba4 42.Be4 Bd7 43.Bd3?? Ba4 44.Ba6 Bd7 45.Bb7 Ba4 46.Bc6 Bb3 47.d6 Kd8 48.Kf5 Bf7 49.g4 Kc8 50.h4 Kd8 51.g5 hg5 52.hg5 Kc8 53.Ke5 Kd8 54.Bd5 Bh5 55.Ke6 Bg6 56.Bc6 (56...Bh5 57.d7+-) 1–0. Sazonov – Kamenesky, ch–Moscow, 1962.

10.Nc3 Nb6 11.d3 Bd6 =.

10.Nc3 Nb6 11.cd5 ed5 12.Bd3 Bg4 13.Qc2 g6 14.0-0 Nbd7 (14...Qd6 15.Ne2 Bf3 16.gf3=) 15.Be2 Re8 16.h3 Bf5 17.d3 Nc5 18.Bb2 h5 19.Na4 Na4 20.Qa4 Qa8 21.Qc2 c5 22.bc6 bc6 23.Nd2 (23.Ra1 Qb7+=) 23...c5 24.Bf3 Be6 25.e4 d4 26.Ra1 Qb8 27.Rb1 ½–½. Pierre – Sygrer, internet, 2019.

10.Nc3 dc4 11.Bc4 Nb6 12.Be2= Nbd5 (12...Qd6 13.e4 Qf4 14.Qc2=) 13.Qb3 Nc3 14.Qc3 Ne8 (14...Bd7 15.0-0=) 15.0-0 Bf6 (15...Bd6 16.e4+=) 16.d4+= g6 (16...Be7!?+=) 17.Bb2 b6 (17...Be7 18.Rc1+/–) 18.Ne5 Be5 (18...Bb7 19.Ba3 Be7 20.Be7 Qe7 21.Ra1+/–) 19.de5+- Bb7 (19...f5+-) 20.Ba3 Qg5 21.f3 h5 (21...f6 22.Bf8 Kf8 23.Qa3 Kf7 24.Rd1 fe5 25.Rd7 Kg8 26.Bc4+-) 22.Bf8 Kf8 23.Rf2 (23.Ra1 Qd8+-) 23...Qe7 (23...Kg8 24.e4+-) 24.Bd3 h4 25.g4 hg3 26.hg3 Kg8 27.e4 Qc5 28.Qc5 bc5 29.Rc2 Kf8 30.Rc5 Ke7 31.g4 Kd7 32.Bc2 Kd8 33.Ba4 Kd7 34.Kf2 Ng7 35.Ke3 Ne8 36.Kf4 Ke7 37.Kg5 Kf8 38.Rc4 Kg7 39.b6! (39…Kf8 40.Be8 cb6 41.Bf7 Kf7 42.Rc7 Ke8 43.Rb7+-) 1–0. Koss,D (1755) – Groebe,K (2720), SSM96, 1996.

10.Nc3 dc4 11.Bc4 e5 12.Qc2 =.

10.d3 dc4 11.dc4 Bd6 12.Be2 =.

10.d3 dc4 11.dc4 Ne4 12.Bd3 Bb4 13.Nbd2 Ndc5 14.Be4 unclear.

10.d3 dc4 11.dc4 Ne4 12.Bd3 Bb4 13.Nbd2 Nd2 14.Nd2 Nc5 15.Bc2 Nd3 16.Kf1 Nf2 17.Kf2 Bd2 18.Bd4 =.

10.d3 dc4 11.dc4 Ne4 12.Bd3 Bb4 13.Nbd2 Ndc5 14.Be4. De Visser,Arno – Zobel, corr ICCF–cup, 1986.

10.d4 c6 11.c5 cb5 12.Bc3 b6 (12...b4 13.Bd2=+) 13.c6 Nb8 14.Bb5 Qc7 (14...Ba6 15.Ba6 Na6 16.Ne5=+) 15.Ne5 Bd6 16.Qc2 Ne4 17.Bb2 (17.f3 Nc3 18.Nc3 Be5 19.de5 Qe5-/+) 17...Bb4 (17...Be5!? 18.de5 Ba6-/+) 18.Ke2 f6 19.Nd3 Nd6 20.Ba4 (better 20.Nb4!? Nb5 21.Qa4=) 20...Ba6-/+ 21.Rc1 Nc4?? (better 21...Qa7 22.Bc3 Bd3 23.Kd3 Qa6 24.Kd2 Ne4 25.Ke1 Nc3 26.Nc3 b5-+) 22.f3?? (better 22.Nb4 Qh2 23.Na6 Qh5 24.f3+-) 22...Ba5 (22...Qh2!? 23.Rf1 Nb2 24.Qb2 Qg2 25.Rf2-+) 23.Kf2 (23.f4 Nc6 24.Kf2 b5-+ (24...Nb2?! 25.Nb2 Bc4 26.Nc4=)) 23...b5 (23...Nb2?! 24.Nb2 Rc8 25.Kg1-/+) 24.Bb3 Nc6 (24...Qh2!? 25.Nc5 Bc8 26.Bc4 bc4 27.Qa4-+) 25.Bc4 bc4 26.Nc5 Bc8 27.Bc3 (better 27.Kg1-+) 27...Nb4?? (better 27...Qh2 28.Qa4 Qc7 29.Ba5 Na5-+) 28.Qd2-/+ Qb6 29.Na3 Nd3 (29...Nc6!?-/+) 30.Nd3= Bc3 31.Rc3 cd3 32.Rd3 Ba6 33.Rc3 Rb8 34.h3 h6 35.Kg3 Qb2 36.Qb2 Rb2 37.Rc6 Bb5?? (better 37...Bf1 38.Nc2 Bd3=+) 38.Nb5?? (better 38.Rb6+-) 38...Rb5+/- 39.Re6 Rb3 (39...Kf7 40.Rc6+/-) 40.Ra6 (40.Kf4 Rb2 41.Rd6 Rg2 42.Rd5 Kf7+-) 40...Re3+/- 41.Rd6 (41.Ra5 Kf7 42.Rd5 Ke6+/-) 41...Rd3 (41...Kf7 42.Rd5 g5 43.Kg4+/-) 42.Rd5 Kh7 (42...g5!?+/-) 43.Kf4+- Kg6 44.g4 h5 (44...Rb3 45.h4+-) 45.gh5 Kh6 46.h4 (46.Kg4!? Rd1+-) 46...Rd1 47.Rd8 Rd3?? (better 47...Kh5 48.d5 Rd4 49.Ke3 Rd1 50.Rh8 Kg6+-) 48.Rh8 1-0. TwelveTeen (2660) - IguanaAstronaut (2310), lichess.org, 2017.

10.Be2 dc4 11.Bc4 Nb6 12.Be2 Bd7 13.Ne5 (13.0-0 c6=) 13...c6 (13...Nfd5 14.0-0=) 14.bc6 Bc6 15.Nc6 bc6 16.0-0 Nbd5 17.Nc3 Qc7 18.Qa4 Nc3 19.Bc3 Nd5 20.Ba1 Rb8 (20...Bd6 21.h3=) 21.Rc1 Exerts pressure on the isolated pawn (21.Qg4 Nf6 22.Qf3 Nd5=) 21...c5 (21...Bd6 22.f4=) 22.d4 Rb4? (22...Bd6 23.dc5 Bh2 24.Kh1=) 23.Qe8+= Bf8 24.dc5 Rb8 25.Qa4 Rc8 (25...Bd6 26.Qd4 Bh2 27.Kh1 f6+-) 26.Qd4 (26.Bd3 Bc5 27.Bd4 Nb6+-) 26...f6? (26...Qa5!?+=) 27.Bg4 (better 27.Qe4 Qf7 28.Bd4+-) 27...Kf7? (better 27...Qc6+-) 28.Be6! Ke6 29.Qe4 Kf7 30.Qd5 Kg6 31.Rc4 (31.Qd3!? f5 32.g4 Kf7 33.Qd5 Ke7 34.Qf5 Qd7+-) 31...h6 32.Qd3 Kf7 33.Qd5 (33.Bf6 Kf6 34.Rf4 Qf4 35.ef4 Rc5+-) 33...Kg6 34.c6 (34.Bf6 Kf6 35.Rf4 Qf4 36.ef4 Rc5 37.Qd4 Kf7+-) 34...Kh7 (34...Rd8 35.Qe4 Kf7 36.Bd4+-) 35.Bd4 (35.g3 Qb8+-) 35...Rd8 36.Qf5 (36.Qf5 Kh8 37.Qg6+-) 1–0. Anonymous – Anonymous, lichess.org, 2020.

10.0-0 Nb6 11.d3 c5 12.Nbd2 Bd7 13.c4 Qa8 14.h3 Qa4 15.Qc1 Ra8 16.Bd1?? (16.Be5 Ne8=) 16...Qa3 (better is 16...Qa1 17.Qa1 Ra1-+) 17.Bb2 Qb4 (17...Qd3? 18.Bc2 Qf1 19.Kf1 (19.Nf1?! Nc4 20.b6 Bd8+/–) 19...Nc4 20.Nc4 Bb5 21.Bd3 dc4 22.Bc4+-) 18.Bb3 Na4 19.Be5 d4 20.ed4 cd4 21.Bd4 Nc5 22.Qc2 Ra3?? (better is 22...Nb3 23.Nb3 Ra3+/–) 23.Bc3+- (23.Bc3 Rb3 24.Bb4 Rb4 25.Ra1+-) 1–0. Schnell,Manfred – Graebner,Walter (2045), Hessenliga, 2007.

10.0-0 Nb6 11.Ne5 Nfd7 12.f4 Bf6 (12...Ne5 13.fe5 Bd7 14.Rf4=) 13.Bd4 Ne5 14.fe5 (worse 14.Be5 Be5 15.fe5 Qg5-/+) 14...Be7 15.Bd3 c5 16.bc6 bc6 17.Qh5 g6 18.Qh6 Bg5 19.Qh3 Nd7 20.Be2 c5 21.Bc3 Qc7 22.Na3 c4 (22...Qc6 23.Qg4 Be7 24.Bb2=) 23.Nb5+- Qc6 24.Nd6 f5? (better 24...Nc5+-) 25.ef6+- Qd6 26.f7! Rf7 27.Rf7 Kf7?? (27...Be3 28.de3 Kf7 29.Qh7 Ke8 30.Qg6 Kd8+-) 28.Qh7 Ke8 (28...Kf8 29.Qg7 Ke8 30.Qg6 Kd8 31.Qg5 Kc7 32.h4+-) 29.Qg6 Kd8 30.Qg5 Kc7 31.h4 Kc6 (31...Qb6 32.h5 Qc5 33.Bg7+-) 32.Qg8 (better 32.h5 Nf8+-) 32...Bb7 (32...Nb6 33.h5 e5 34.Qg5+-) 33.h5 e5 Black plans d4 34.Qg7 d4 (34...Qf6 35.h6 d4 36.ed4+-) 35.ed4 ed4 36.Bd4 Kb5 (36...Kc7 37.h6 Be4 38.Bc4+-) 37.h6 Qe6 (37...Be4 38.Bc4! Kc4 39.d3 Kb5 40.de4 Nf8 41.Qb7 Kc4+-) 38.h7 Qe2 39.Qd7 Bc6 40.Qh3 Qe1 41.Kh2 Qd2 42.h8Q Qf4 (42...Qg5 43.Qb8 Ka4 44.Qa7 Kb5 45.Qb6 Ka4 46.Qa6 Qa5 47.Qc4 Qb4 48.Qhb3 Ka5 49.Qbb4) 43.Qg3 Qc1 (43...Qf7 44.Qd6 Qb7 45.Qc5 Ka4 46.Qc4 Qb4 47.Qc6 Qb5 48.Qha8 Kb4 49.Qc3) 44.Qhb8 Ka4 45.Qa7 Kb5 (45...Kb4 46.Qd6 Kb5 47.Qdc5) 46.Qgb8 (46.Qgb8 Bb7 47.Qbb7) 1–0. DEFFM – GuestJVGH, freechess.org, 2019.

10.0-0 c5 11.c4 Qc7 12.Qb3 (12.d4 dc4 13.Bc4 cd4 14.Qd4 Rd8=) 12...b6 13.d4 (13.Nc3 Bb7=) 13...Bb7=+ 14.Nbd2 (14.Rc1 Ra8 15.Qb2 dc4=) 14...Ra8 15.Bb2 (15.Rc1 Bd6=) 15...cd4 16.ed4 dc4 (16...Qf4 17.Rc1=+) 17.Bc4 (17.Nc4 Bd5=+) 17...Nd5 18.Ne4. Pietrzak,Janusz – Chyla,M, corr Poland, 1990.

10.0-0 Nc5 11.d3 Bd7 12.c4 c6 13.d4 Nce4 14.bc6 Bc6 15.c5 b6 16.Ne5 Qc7 17.Nc6 Qc6 18.cb6 (18.f3 Qa8 19.fe4 Qa1+=) 18...Qb6 19.Nd2 Bb4 20.Ne4 Ne4 21.f3 (21.Qc2 Rb8=) 21...Nc3 22.Qc2 Rc8 23.Bd1 (23.Bd3 g6=) 23...e5 (23...Qc7 24.Bc3 Qc3 25.Qf2+=) 24.Qd3 (better is 24.Qf5!? Re8 25.Bc2+=) 24...ed4-/+ (24...Nd1?! 25.Rd1 ed4 26.Bd4=) 25.ed4 Qa5 (25...Rc4!? 26.Bc2 g6-/+) 26.Bc2= Nb5?? (better is 26...g6=) 27.Qh7+- Kf8 28.Qh8 Ke7 29.Qc8 Qb6 30.Bf5 (30.Rd1!? Qc7 31.Qf5 Qd6+-) 30...Nd4 31.Bd4 (31.Kh1!? Nf5 32.Qf5 Qe6 33.Qg5 Kd7 34.Bg7 Be1+-) 31...Qd4 32.Kh1 Kf6 33.g4 Bd6 34.Re1 Be5 35.Qd8# 1–0. Starr,Albert Martin – Roper,Lee, San Francisco MI Dolan mem 5th, 2005.

10.0-0 c6 11.c4 cb5 12.cb5 b6 13.d4 h6 14.Qb3 Bb7 15.Rc1 Qb8 16.Nbd2 Rc8 17.Rc8 Qc8 18.Bb2 Bf8 19.Ne5 Be7 20.Ndf3 Bd6 21.Nd7 Nd7 22.Bd3 Kf8 23.h3 f5 (23...Qa8 24.Bc3=) 24.g3 (24.Ba3 Qb8+=) 24...g6 (24...Qa8 25.Bc3+=) 25.Ba3+- Ba3 (25...Qc7!?+-) 26.Qa3 Kf7 27.Qd6 Qd8?? (27...g5 28.Kg2+-) 28.h4 (better 28.Ne5 Kg7 29.Qd7 Qd7 30.Nd7+-) 28...Qe8 29.Ne5 Ne5 30.de5 Qe7 31.Qb8 (better 31.Qb6!? Kg7 32.Qd6+-) 31...g5 32.hg5 hg5 33.Qh8 (better 33.g4+-) 33...Kg6? (better 33...g4+=) 34.Qg8 Kh5 (34...Kh6 35.g4 Qd7+-) 35.Qh8 (better 35.g4 Kh6 36.gf5+-) 35...Kg6 36.Qg8 Kh6?? (36...Kh5 37.g4 Kh6 38.gf5+-) 37.Qh8 (37.g4 Qd7+-) 37...Qh7?? (better 37...Kg6=) 38.Qf8 (better 38.Qf6 Qg6 39.Qe7+-) 38...Qg7 39.Qb8 g4 40.Bc2 (40.Qe8 Qe5 41.Qe7 Kg6 42.Qb7 Qc3+-) 40...Kh7 (40...Qe7+-) 41.Bd3 (better 41.Qd8!?+-) 41...Qe7 (41...Kh6 42.Qe8 Qe5+-) 42.Qd6=+ Qd6 43.ed6 Bc8 0–1. GuestBFQC – TwoOutThree, freechess.org, 2017.

10.0-0 c6 11.bc6 bc6 12.c4 Ba6 13.cd5 Be2 14.Qe2 cd5 15.d4 (15.Rc1 Qa5 16.Bc3 Qc7=) 15...Ne4 16.Nbd2 Ndf6 17.Ne4 Ne4 18.Ne5 Qc7 19.f3 Nf6 (19...Nd6 20.e4=) 20.Qd2 Rc8 21.Bb2 Qb7 22.Rc1 Rb8 23.Rc2 Rc8 24.Rc8 Qc8 25.g4 h6 26.h4 (26.Qc3 Qb7=) 26...Nd7 27.Nd7 Qd7 28.h5 Qc7 29.Kg2 Bh4 30.Kh1 Qg3 31.Qe2 Qh3 (31...f5 32.Bc1=+) 32.Kg1 Qg3 33.Kh1 Qf2 (33...f5 34.gf5 ef5 35.Bc3=+) 34.Qf2= Bf2 35.Bc1 Kf8 36.Kg2 Bh4 37.Ba3 Be7 38.Be7 Ke7 39.f4 f6 40.Kf3 Kd6 41.e4 White intends f5 41...de4? (better 41...e5 42.de5 fe5 43.ed5 Kd5=) 42.Ke4+/- Kc6?? (better 42...Kd7+/-) 43.f5+- Kd6 44.fe6 Ke6 45.d5 (45.d5 Kd7 46.Kd3+-) 1-0. Bushwacker (1925) - aprazma (1935), ChessWorld.net, 2012.

10.0-0 Bd6 =.

10.0-0 Ne4 11.c4 dc4 12.Bc4 Nd6 13.Be2 Bf6 14.Nc3 Nb6 15.Qc2 Bd7 Attacks the isolani on b5 16.Ne4 Ba1 17.Ra1 (17.Nd6 cd6 18.Ra1 Nd5+=) 17...Bb5= 18.Neg5 (18.Bb5 Nb5 19.Nfg5 Re8 20.Nh7 c6= (20...Kh7?? 21.Nf6 Kh6 22.Qh7 Kg5 23.Ne4 Kg4 24.h3)) 18...g6 19.Bb5 Nb5 20.Ne4 Nd6 (20...Nd5 21.d4=+) 21.Nc5 Nd7 22.d4 Nc5 23.dc5 (23.Qc5 c6=+) 23...Nb5=+ 24.Rd1 Qf6 25.c6 b6 26.h3 Ra8 27.Rd7 Ra7 28.h4 (better 28.Kh2=+) 28...Nd6?? (better 28...Nc3-/+) 29.e4?? (better 29.Rd6 cd6 30.c7 Ra1 31.Kh2+-) 29...Ra1 (29...h6!? 30.Nd2 Ra1 31.Nf1-+) 30.Kh2-/+ Qf4 31.Kh3?? (31.g3 Qf3 32.Rd8 Kg7 33.Qb2 f6 34.Qa1 Qf2 35.Kh3 Ne4 36.Rd7 Kh6 37.Rd3-+) 31…Rh1 (31...Rh1 32.Nh2 Rh2) 0–1. Furlong,Kevin – Pruefer,Stefan (1840), Afro op Augsburg, 1998.

10.0-0 Ne8 11.c4 dc4 12.Bc4 Nb6 13.Be2 =.

10.0-0 Ne8 11.c4 Bf6 12.Nc3 (12.d4 Nd6+=) 12...dc4= 13.Bc4 Nd6 (13...Nb6 14.Be2+=) 14.Be2 (14.Bd3 Be7+=) 14...b6 (14...h6 15.Qc2+=) 15.Na2 (15.Qc2 Bb7+=) 15...Bb7= 16.Bf6 Qf6 17.Nb4 Ne5 (17...Nb8 18.Qa4=) 18.Nd4 (18.Ne5 Qe5 19.d4 Qe4=) 18...Qg5 (18...Ra8 19.Qc1 Qg5 20.f3=) 19.g3 (19.Nbc6 Bc6 20.bc6 Ng6=) 19...Qh6 (19...Qf6 20.f4 Nd7 21.Qc2+=) 20.Qc2 Qh3 21.Nbc6 Kh8 22.Ra1 Ng4 23.Nf3 Qh5 24.Ra4 Nh2 25.Nfe5 Qe2 26.Qh7!! (26...Kh7 27.Rh4 Qh5 28.Rh5 Kg8 29.Ne7#) 1–0. Bernstein,Sidney Norman – Seidman,Herbert, USA–ch New York, 1959.

10.c4 dc4=+ 11.Bc4 Nb6 12.Be2 Ne8 (12...Bd6 13.0-0=) 13.Qc2 (13.Bd4 Nd5=) 13...Bf6 (13...Nf6 14.Bf6 Bf6 15.d4=) 14.d4 (14.Bf6 Nf6 15.d4 Qd6+=) 14...Bd7 (14...Be7 15.0-0=) 15.Nc3 (15.Bd3 h6+=) 15...Nd6 16.0-0 g6 (16...c6 17.Bd3 h6 18.Rc1+=) 17.Rc1 (17.Ne5 Bg7+=) 17...c6 (17...Ndc4 18.Na4 Na3 19.Qb3 Na4 20.Qa4+/–) 18.bc6+/– Bc6 19.e4 Bg7 20.e5 (20.Ne5 Qg5 21.Nc6 bc6+/–) 20...Nf5+= 21.Nb5 (21.Ne4 Qd5 22.Bd3 Rc8+=) 21...Qd7 (better is 21...f6=) 22.Na7 (22.Qd3 Nd5 23.Rc5 b6 24.Rc6 Qc6-/+) 22...Bd5 (better is 22...Bf3 23.Bf3 Nd4 24.Bd4 Qd4 25.Bb7 Qe5-/+) 23.Qc7?? (better is 23.Qc5 Na4 24.Qc7=) 23...Qc7-+ 24.Rc7 Ra8 25.Bc3 Ra7 26.g4 Bf3 (better is 26...Ra2!? 27.Kf1 Nh6-+) 27.Bf3 Nh4 28.Bb7 Bf8 29.h3?? (29.Bb2-+) 29…Nd5 (30.Rc8 Rb7-+) 0–1. Jereb,Juergen – Theuermeister,Peter, Vienna op–F, 1996.