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1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Nbd7

(...)

5.a3 c6 6.Ne2 (6.d4 e4=) 6...Be7 7.Ng3 0–0 8.Be2 Re8 (8...a5 9.d4=+) 9.0–0= Qc7 (9...Qb6 10.d4=) 10.d3 (10.Nf5 b6=) 10...Nf8 (10...Qb6 11.Qd2=) 11.Nd2 Ng6 12.Nb3 (12.d4 c5=) 12...Be6 13.Rc1 Rac8 (13...d5 14.cd5 Bd5 15.e4=) ½–½. Wilk,E – Kupczak,M, Poland–chT disctrict, 1996.

5.a3 g6 6.Nc3 Bg7 7.Be2 0–0 8.Bf3 Re8 9.d3 Nf8 (9...e4!? 10.de4 Ne5–/+) 10.Qc2 c6 11.Nge2 d5 12.Rd1 Ne6 13.Nc1 (13.cd5 cd5 14.Qb3 d4+=) 13...h5 (better is 13...Ng5!?–/+) 14.Nb3+= h4 15.h3 a6 16.a4 (better is 16.0–0!?=) 16...Ng5–/+ 17.a5 Nf3 18.gf3 Bf5 19.e4 Bc8 20.Ne2 Qe7 21.Nc5 dc4 22.dc4 Nh7 23.Qc3 Nf6 24.Kf1 (24.Qc2!?=) 24...Nh5+= 25.Rh2 Kh7 26.Kg1 Be6 27.Ne6 Qe6 28.Kg2 Rad8 29.Rhh1 Rd7 30.Bc1 Red8 31.Rd7 Rd7 32.Qc2 Qd6 33.Re1? (better is 33.c5 Qe6 34.Bd2–/+) 33...Qb4–+ 34.Qc3 Qc3 35.Nc3 Bf8 36.Be3 Bb4 37.Rc1 Ba5 0–1. Macedo,A Soares De (1965) – Fernando,Diogo (2495), ITT NATAL, 2009.

5.a4 a5 6.b5 Nc5 7.d3 Be7 8.Be2 0–0 9.Nf3 e4 10.de4 Nfe4 11.Nd4 Bf6 12.0–0 Qe7 13.Nc3 Nc3 14.Bc3 Ne6 15.Bf3 0–1. Radwan,Jan (1740) – Karolak,Jan (1940), Rowy/Fregata Poland, 2009.

5.Qb3 g6 6.d4= Bg7 7.Nd2 0–0 8.Qc3 Re8 9.Rd1? ed4–+ 10.Qd4? Nh5 11.Qd3 Bb2 12.Ndf3 Ne5 13.Ne5 Be5 14.Nf3 Bg4 15.Be2 Bg7 16.c5 Qf6 17.cd6 Qc3 18.Nd2 Qd3 19.Bd3 Bd1 20.Kd1 cd6 21.Nc4 b5 (21...b5 22.Na5 a6–+) 0–1. Pfendtner,Gerald – Hausen,Manfred, Baden–ch AT Waldshut, 1991.

5.Qc2 b6 6.Nf3= Be7 7.d4 ed4 8.ed4 0–0 9.Be2 Bb7 10.Nbd2 a5 11.b5 d5 12.0–0 dc4 13.Bc4 Nd5 14.a3 Rc8 15.Qb3 N7f6 16.Ne5 Qd6 17.Rfe1 Rcd8 18.Rac1 Rc8 19.f3 Qd8 20.Ne4 Qe8 21.Ng3 g6 22.Rc2 Nf4 23.Nc6 Bc6+/– 24.bc6 Qd8 25.Ne4 Ne4 26.Re4 Qd6 27.Bc1 Nh5 28.Bh6 Ng7 29.Bf4 Qd8 30.Be5 Nf5 31.Rf4 Bg5 32.Re4 Nd6 33.Rce2 Ne4 34.fe4 Qe7 35.Rf2 Qe8 36.Qc3 h5 37.Qg3 Bh6 38.Qg6 (38.Qg6 Bg7 39.Qg7#) 1–0. Kunic,Mehmedalija – Hoel,Hakon, 34th Norwegian Open, Oslo NOR (3), 2003.

5.Qc2 c5 6.b5 Be7 7.Nc3 0–0 8.Nf3 Nb6 9.Ng5 h6 10.h4 a6 (worse is 10...hg5 11.hg5 Re8 12.gf6 Bf6 13.Qh7 Kf8 14.a4+=) 11.Nd5 Nbd5 (worse is 11...hg5 12.hg5 Nbd5 13.cd5+=) 12.cd5 ab5 (worse is 12...hg5 13.hg5 g6 14.gf6 Bf6 15.ba6 ba6 16.Rb1+=) 13.Bb5 Bd7 (worse is 13...hg5 14.hg5 g6 15.gf6 Bf6 16.e4=) 14.Be2 Re8 (14...hg5?! 15.hg5 Re8 16.gf6 Bf6 17.Qh7 Kf8 18.Qd3=) 15.f4 Ba4 (15...hg5 16.hg5 ef4 17.gf6 Bf6 18.Qh7 Kf8 19.Qh8 Ke7 20.Bf6 gf6 21.Qh7=) 16.Qb1 ef4 (16...hg5?! 17.hg5 ef4 18.ef4=) 17.ef4 Bd7 (17...hg5?! 18.hg5 b6 19.Bf6 Bf6 20.Qh7 Kf8 21.Qh8 (21.gf6 Qf6 22.Rb1 Qf4–+) 21...Ke7 22.gf6 gf6 23.Qg7=; 17...Nd5?? 18.Qh7 Kf8 19.Qg7) 18.Kf1 Ra4 (18...hg5 19.hg5 Ra4 20.gf6 Bf6 21.Qh7 Kf8 22.Qh8 Ke7 23.Bf6 gf6 24.Qh4+=) 19.g3 hg5 20.hg5 Ne4 21.Kg2 Bg5! 22.fg5 (22.Bd1 Rb4 23.Bb3 Bf6–+) 22...Qg5 (22...Ng5?! 23.Bd3 Qc8 24.Qd1 Bh3 25.Kh2–+) 23.Qd3 Ng3! (23...Qd2?! 24.Qd2 Nd2 25.Rhe1–+) 24.Qh7 (24.Qg3 Re2 Double attack (24...Re2 Discovered attack; 24...Re2 Deflection; 24...Re2 Overloading)) 24...Kf8 25.Qg7 Qg7 26.Bg7 Kg7 27.Bd1 Nh1 28.Ba4 Ba4 29.Kh1 Re5 0–1. combijack (1755) – gobbo61 (1840), gameknot.com, 2010.

5.Qc2 c6 6.Nf3 Qc7 7.Nc3 h6 8.a3 a6 9.Be2 Be7 10.0–0–0 (10.d4 0–0+=) 10...Nf8 11.d4 g5 12.de5 de5 13.Ne5 Qe5 (better is 13...a5!? 14.Nd3 ab4 15.ab4 Bf5+=) 14.Nd5+– Qc7?? (better is 14...Qb2 15.Kb2 cd5 16.cd5 Bd7+–) 15.Nc7 1–0. combijack (1815) – lemon_twist, gameknot.com, 2012.

5.Qc2 Be7 6.Nf3 e4 (6...0–0!?+=) 7.Ng5+= h6 8.Ne4 Ne4 9.Qe4 Nf6 10.Bf6 gf6 11.Nc3 f5 12.Qc2 Be6 13.d4 d5 14.cd5 Bd5 15.Qf5 Bb4? (better is 15...c6 16.a3 Be6+–) 16.Qe5 Kd7 (16...Qe7 17.Qh8 Kd7 18.Bb5 c6 19.Qa8 Bc3 20.Ke2 cb5 21.Rac1+– (21.Qa7? Qe4 22.Qc5 Bc4 23.Qc4 bc4–+)) 17.Qd5 Kc8 18.Qd8 Kd8 19.Rc1 a5 20.Bd3 Rg8 21.0–0 Bc3 22.Rc3 b6 23.Rfc1 Ra7 24.Kf1 Rg5 25.a4 Rd5 26.g4 c5 (26...h5 27.f3+–) 27.dc5 bc5 28.Bf5 h5 29.Rd3 (better is 29.Rc5!? Rc5 30.Rc5 hg4 31.Bg4 Ke7+–) 29...Rd3 30.Bd3 hg4 31.Rd1 (better is 31.Rc5!? f6+–) 31...Rd7 32.Ke2 Rd5 33.Bb5 (better is 33.Bf5! Rd1 34.Kd1 Ke7+–) 33...Rd1 34.Kd1 Ke7 35.Be2 f5 36.Kd2 Kd6 37.Kc3 Kd5 38.Bd3 Ke5 (38...f4 39.ef4 Kd6 40.Kc4+–) 39.Kc4 f4 40.ef4 Kf4 41.Be2 Kg5 42.Kc5 Kh4 43.Bf1 Kg5 44.Kb5 (44.Kb5 Kf4 45.Be2+–) 1–0. madik – churn, gameknot.com, 2009.

5.Nc3 a5 6.b5 Nc5 7.h3 b6 8.Be2 Bb7 9.Nf3 Be7 10.0–0 0–0 11.d4 ed4 12.ed4 Nce4 13.Ne4 Be4 14.Bd3 d5 15.Ng5 Bd3 16.Qd3 Ne4 17.Ne4 de4 18.Qe4 Bf6 19.Rab1 Re8 20.Qg4 Qc8 21.Qc8 Rac8 22.d5 Bb2 23.Rb2 Re4 24.Rc2 Kf8 25.f3 Re3 26.Kf2 Rce8 27.Rd1 Ra3 28.Rdd2 Rd8 29.c5 bc5 30.Rc5 Rd7 31.Rc6 g6 32.b6 cb6 33.Rb6 Kg7 34.d6 Kf6 35.Re2 Rd3 36.Ra6 R3d6 37.Ra5 h5 38.a4 Rd5 39.Ra6 Kg7 40.a5 Rd2 41.Ra8 Re2 42.Ke2 Rd4 43.a6 Ra4 44.a7 g5 45.Kd3 Kf6 46.Rh8 Ra7 47.Rh5 Kg6 48.Rh8 Kg7 49.Re8 Ra2 50.Re2 Ra3 51.Ke4 Kg6 52.Re3 f5 53.Kd5 Re3 0–1. laszlotamas – deksla, internet, 2013.

5.Nc3 a6 6.Nf3= b6 7.Be2 Be7 8.0–0 0–0 9.Qc2 c5 10.Ng5 h6–/+ 11.Nge4 Ne4 12.Qe4= Rb8 13.Nd5 Nf6= 14.Ne7 Qe7=+ 15.Qh4 cb4 16.f4 e4 17.f5= Bb7 18.Rf4 Rbd8 19.Rg4 Rd7?? 20.Qh6 (20.Qh6 Ne8 21.Rg7 Ng7 22.Qg7#) 1–0. Wall,Bill – Charles, Palo Alto, CA, 1988.

5.d3 c6 6.Nd2 Be7 7.Ngf3 b6 8.a3 Bb7 9.Be2 0–0 10.0–0 Re8 11.Re1 Bf8 12.Rc1 d5 13.Qc2 c5 14.bc5 Bc5 15.Nb3 Bd6 16.cd5 Nd5 17.d4 Rc8 18.Qf5 Rc1 19.Rc1 g6 20.Qh3 ed4 21.Nbd4 Ne5 22.Nb5 Nf3 23.Bf3 (23.gf3 Nf4 24.ef4 Bf4=; 23.Qf3?? Nf4 24.ef4 Bf3 25.Bf3 Bf4–+) 23...Be5 24.Be5 Re5 25.Rd1 Qe7 26.Rc1?? (26.Na7 Nc3 27.Rd7 Qa3 28.g4 Qa1 29.Kg2+=) 26...Kg7 (26...Re3!? 27.Kf1 Rb3–+) 27.Qg3 a6 28.Bd5 Bd5 29.Nc7 Bg2! 30.f4 Rc5 31.Rc5–/+ Qc5 32.Na6 Qa3 33.Kg2 Qa6 34.f5 Qb7 35.Kf2 f6 36.h4 b5 37.h5 g5 38.Qd6 h6 39.Qb4 Qd7 40.e4 Qe8 41.Kg3? Qh5–+ 42.e5 Qh4! (42...Qh4 43.Qh4 gh4 44.Kh4 fe5–+) 0–1. Bartle,Georg (1785) – Weissflog,Hans_Dieter (1940), Emmendingen GER, Badischer Ch–B, 2012.

5.d4 c6 6.de5 de5 7.c5 Be7 8.Nf3 Qc7 9.Be2 0–0 10.–0 e4 11.Nd4 Ne5 12.Nd2 Neg4 13.g3 Qe5 (13...a5 14.a3=) 14.Qc2 (better is 14.Nc6 Qc7 15.Ne7 Qe7 16.Nc4+–) 14...Qh5= 15.h4 g5 (better is 15...Qg6!? 16.Kg2 Rd8=) 16.Ne4 gh4 17.Nf6 (17.Nc6 bc6 18.Bg4 Ng4 19.f3+=) 17...Bf6= 18.gh4 Qh4 19.Bg4?? (better is 19.Nf3 Qh5 20.Rfd1=) 19...Qg4–+ (19...Bg4?! 20.Qe4+=) 20.Kh1 Qh5 21.Kg1 Bh3 (21...Qg5!? 22.Kh1 Qh4 23.Kg1–+) 22.f4 Kh8 23.Kf2?? (23.Nf3 Rg8 24.Ng5 Rg5 25.fg5 Qg5 26.Kh1 Bf1 27.Rf1 Qh5 28.Qh2 Qh2 29.Kh2 Bb2 30.Rf7–+) 23...Bh4 (23...Bf1?! 24.Nf3 Bb2 25.Qb2 f6 26.Rf1–+) 24.Kg1 Rg8 25.Kh1 Bg2 26.Qg2 Rg2 27.Kg2 (27.Ne2 f6 28.Kg2 Rg8 29.Ng3 Rg3 30.Kh2 Qe2 31.Rf2 Qf2 32.Kh1 Qg2) 27...Qg4 (27...Rg8 28.Kh2 Bf6) 28.Kh1 (28.Kh2 Qg3 29.Kh1 Qh3 30.Kg1 Rg8) 28...Qh3 (28...Qh3 29.Kg1 Rg8) 0–1. kaasparov – cucrapok, internet, 2013.

5.d4 d5 6.a3 e4 7.Qc2 c6 8.Nc3 Nb6 9.c5 Nbd7 10.f3 Qe7 11.fe4 de4 12.Bc4 Ng4 13.Ne4?? (better is 13.Bc1 f5 14.b5=) 13...Ne3–+ 14.Nd6 (14.Bf7 Kd8 15.Qe2 Qe4 16.Kf2 Qh4 17.Ke3 Qe7 18.Kf2 Qf7 19.Nf3–+) 14...Kd8 (better is 14...Qd6! 15.Bf7 Kd8–+) 15.Qe2= Ng2 16.Kf2 Qe2 17.Ke2 (better is 17.Ne2!? Bd6 18.Kg2=) 17...Bd6–/+ 18.cd6 Nf4 19.Kf3 Ng6 (19...Nb6 20.Bf7 Nd3 21.Bc3–+) 20.Rf1 Nb6 21.Bf7 Rf8 22.Ke2 Bg4 23.Ke1 Kd7 (23...Nh4 24.Rf2 Bf5 25.Bb3–/+) 24.h3 (24.d5 Nd5 (worse is 24...Kd6 25.dc6 Nh8 26.cb7+=) 25.Bg7 Rfc8+=) 24...Bh5 (24...Be6 25.Bg6 Rf1 26.Kf1 Rf8 27.Ke1–/+) 25.Rf5 (25.d5!? Nf4 26.dc6 Kc6 27.Rf4 Rf7 28.Rf7 Bf7 29.Bg7+=) 25...Kd6 (25...Nf4 26.Rf4 Bf7 27.Nf3–/+) 26.Rh5? (better is 26.d5 Nf4 27.Be5 Ke7 28.Bf4 Bf7 29.dc6 bc6 30.Ne2–/+) 26...Rf7–+ 27.Rh7 Re8 28.Kd1 Rf1 29.Kc2 Rf2 30.Kb3 Re3 31.Bc3 Nd5 32.Ne2 Rfe2 33.Rc1 b5 34.Rg7 Ngf4 35.h4 Rd2 36.h5 Rdd3 37.h6 Nc3 38.Rf1 Rd2 39.Re1 Nce2 0–1. Barczi,Tibor (1685) – Kosar,Mikulas, Dunajska Streda op, 1999.

5.d4 Be7 =+.

5.Be2 Be7 6.Nf3 e4 7.Nd4 0–0 8.Nc3 c5 9.bc5 dc5 10.Nf5 Nb6 11.Ne7 Qe7=+ 12.Qc2 Bf5 13.a4 Rfd8 14.0–0 Bg6 15.a5 Nbd7 16.Nd5 Nd5 17.cd5 Ne5 18.Qc3 f6–/+ 19.f4 ef3 20.gf3 Rd5 21.f4 Nf7 22.Rad1 Rad8 23.Bc1 Bd3–+ 24.Bf3 Be4 25.Be2 Qd7 26.Rf2 b5 27.ab6 ab6 28.Qb3 Bd3 29.Bf3 Rd6 30.Rg2 b5 31.Bb2 c4 32.Qb4 Bc2 33.Rc1–/+ Bb3 34.Bc3 Kh8 35.Ra1 Rb6 36.Bd4= Rd6 37.Ra7 Qe8 38.Bh5 g6=+ 39.Qc3?? Rd4–+ 40.Bg6 hg6 41.Rg6 Kh7 42.Rf6 R4d7 43.Raa6 Rd2 44.Rg6 Rd1 45.Kf2 R8d2 46.Kf3 Rf1 47.Kg3 Rg1 48.Kh3 Qd7 49.Rge6 Rg6 50.Qd2 Qd2 51.Rg6 Qe3 52.Rg3 Qf4 53.Ra7 0–1. Durka,Jan – Jusko,L, SVK–chT3D, 2000.

5.Be2 g6 6.Nf3 Bg7 7.d4 e4 8.Nfd2 0–0 9.Nc3 Re8 10.Qc2 e4 draws heavy fire 10...Qe7 11.0–0 Nf8 12.h3 h5 13.b5 Bf5 14.a4 N8h7 15.Rfc1 g5 16.Nf1 h4 17.Qd1 Qd7 18.Nh2 Rf8 19.a5 Bg6 20.b6 ab6 21.ab6 c6 22.Qb3 Nh5 23.Bh5 Bh5 24.Ne4 f5 25.Nd2 g4 26.e4 (26.Ra7 gh3 27.Rca1 Rae8+=) 26...Ra1 27.Ra1 gh3 28.Qh3 Bf6 (28...Qd8 29.ef5 Qb6 30.Ra2+/–) 29.ef5 (29.Qf5!? Qe8 30.Qh3 Ng5+–) 29...Ng5+/– 30.Qd3 Bd8 31.Ra8 Bb6 32.Rf8 Kf8 33.Ndf3 Nf3 34.Nf3 (34.gf3?! d5+=) 34...Bd8 35.Qe4 Qe7 36.Qf4 Qf6 37.Ba3 Be7 38.Nd2 Bf7 39.c5 dc5 40.Bc5 Bd5 41.Qb8 Kf7 42.Qb7 Qg5 43.f3 Qe3 44.Kh2 Qf4 45.Kh1 (45.Kh1 Qe3 46.Qe7 Qe7 47.Be7 Ke7 48.Ne4+–) 1–0. Subira Navarro,Oscar – Lopez Guaita,Fernando (2025), Zaragoza ESP, Artistica Open, 2013.

5.Nf3 a5 6.b5 Be7 7.d4 ed4 8.ed4 0–0 9.Bd3 Re8 10.0–0 Bf8 11.Nbd2 g6 12.Qc2 Bg7 13.Rfe1 Re1 14.Re1 Nf8 15.h3 c6 16.a4 Nh5 17.d5 Nf4 18.Bg7 Kg7 19.dc6 bc6 20.bc6 Qf6 21.Ne4 Nh3 22.Kf1 Qf4 23.Qc3 f6 24.Qd4 Ne6 25.Qd6 Qd6 26.Nd6 Nhf4 27.Be4 Nc7 28.g3 Nfe6 29.Bd5 Nd8 30.Re7 Kh6 31.Rc7 Bg4 32.Nd4 f5 33.f3 Bh3 34.Kf2 Rb8 35.Nb7 Nb7 36.Rb7 Re8 37.c7 f4 38.g4 Kg5 39.Rb8 Re7 40.c8Q h5 41.Qd8 Kf6 42.Nc6 hg4 43.Qe7 Kf5 44.fg4 Kg4 45.Be4 g5 46.Bf3 Kh4 47.Qh7 1–0. ferminkatcho (1690) – edaname (1795), internet, 2014.

5.Nf3 Nb6 6.d3= Bg4 7.Be2 Be7 8.Ng5 Be2 9.Qe2 h6 10.Nf3 e4 11.de4 Ne4 12.Nc3 Nc3 13.Bc3 Bf6 14.Qd3 Na4 15.Bf6 Qf6 16.Qe4 Kd7 17.0–0 c6 18.Qc2 Nb6 19.c5 Nd5 20.e4 Nb4 21.Qd2 d5?? 22.Qb4+– de4 23.Qb7 Ke6 24.Qc6 Kf5 25.Qd5 Qe5 26.Ne5 (26.Ne5 Rhb8 27.g4 Kg5 28.Ng6 Kg4 29.h3 Kh3 30.Qf5#) 1–0. pierre – oppotip, internet, 2010.

5.Nf3 d5 6.Ne5 Ne5 7.Be5 Bb4 8.Qa4+– Nd7 9.Bg7 Rg8 10.Qb4 Rg7 11.cd5 Qe7 12.Qa5 Qc5 13.Qc3 Qc3 14.dc3 Nb6 15.Kd1?? Nd5+= 16.Bc4 Be6= 17.Bf1 0–0–0 18.Ke1 h5 19.g3+= Bg4 20.Be2 Nf6 21.Nd2+/– Be2 22.Ke2 Nd5 23.Rac1 f5 24.Nb3 Re7 25.Rhd1 Nb6 26.Rd8 Kd8 27.Rd1 Rd7 28.Nd4+– Nd5 29.Rd3 c5 30.Ne6 Ke7 31.Nc5 Rd6 32.Nb7 Rd7 33.Nc5 Rd6 34.Nb3 Ke6 35.Nd4 Ke5 36.f4 Ke4 37.Nf3 Rb6 38.Rd4# (38.Ng5#) 1–0. b4_player – opponent, gamecolony.com, 2007.

5.Nf3 Qe7 6.d4 g6 7.Be2 Bg7 8.Nc3 c6 9.0–0+= 0–0 10.Qb3 Kh8 11.Rfd1 Nh5 12.de5 de5 13.Ne4 f5 14.Nd6+/– c5 15.a3 b6 16.Qa4 Nhf6 17.Qc6 Ba6 18.b5 Rad8 19.Qc7 Bc8 20.Ne5!! Nd5 21.Rd5 (21.Rd5 Be5 22.Be5 Kg8 23.Nc8 Rc8 24.Qd7+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

5.Nf3 Ng8 6.Nc3= f6 7.d4 ed4 8.Qd4 (8.Nd4 Ne5+=) 8...c5 (8...Ne5 9.Be2+=) 9.bc5 dc5 10.Qd2 b6 11.Be2 Bd6?? (better is 11...Bb7+/–) 12.Qd6+– g6 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

5.Nf3 h6 6.d3 (6.Nc3 e4 7.Nd4 Nb6+=) 6...Be7 7.Nc3 c6 8.Be2 0–0 9.0–0 Re8 10.d4 ed4 11.Nd4 Nb6 (11...Ne5 12.Qc2=) 12.Qb3+= Be6 (12...Bd7 13.h3+=) 13.Ne6+/– fe6 14.f4 Rf8 (14...a5 15.a3+/–) 15.e4 d5 (15...a5 16.a3+/–) 16.cd5+– ed5 17.e5 Nfd7 18.Rad1 Kh8 19.a3 Qe8 20.e6 Nf6 21.f5 Bd6 22.Kh1 Qe7 23.g3 Ne8 24.Bd3 Qg5 (24...a5 25.Ne2+–) 25.Bc1 Qh5 26.Kg2 Nf6 27.Be2 Ng4?? (27...Qe8+–) 28.h3 Rf5 (28...Qe8 29.hg4 Qe7+–) 29.Bg4 Qg6 (29...Rf1 30.Bh5 (30.Kf1?! Qg6 31.Ne2 h5+–) 30...Rf6 31.Bf7+–) 30.Rf5 (30.Bf5?? Qg3 31.Kh1 Qh2) 30...Nc4 (30...Re8 31.Rdf1 Rg8 32.Qb1+–) 31.Nd5! cd5 32.Rdd5 Rc8 33.Qd3 Ne5 34.Rde5 Be5 35.Rf8! Rf8 36.Qg6 1–0. pierred – anony, internet, 2015.

5.g3 Be7 6.Bg2 0–0 7.Qc2 Nb6 8.Ne2 c6 9.0–0 Be6 10.d3 Qc7 11.Nd2 d5 12.cd5 Nfd5 13.a3 Rad8 14.Nf3 Bf6 15.d4 ed4 16.Ned4 Bg4 17.Rfd1 Qe7 18.e4 Nc7 19.h3 Bf3 20.Bf3 g6 21.Bg2 Rd7 22.Nb3 Bb2 23.Qb2 Ne6 24.Rd7 Qd7 25.Nc5 Nc5 26.bc5 Nc4 27.Qc3 Nd2 28.Ra2 Rd8 29.Rb2 Qd3 30.Qd3 Rd3 31.Rb7 Ra3 32.Rc7 Ra6 33.e5 Ra1 34.Kh2 Nc4 35.e6 fe6 36.Rc6 Kf7 37.Rc7 Kf6 38.Rh7 Ra2 39.Rh8 Kg7 40.Rh4 Ne5+= 41.Re4 Kf6 42.Re3 Rf2 43.Rc3 Ke7 44.c6 Kd8 45.Kg1 Rb2 46.Rc5 Nd3 47.Rg5 Rb1 48.Bf1 Kc7 49.Rg6 a5 50.h4 Nc5 51.h5 Kc6 52.Rg8 e5 53.h6 Rb7 54.g4 Rh7 55.g5+/– Kd5 56.Bh3 Ne6 57.Bf5 Ng5 58.Bh7 Nh7 59.Rg7 Nf6 60.h7 Nh7 61.Rh7 Kc4 62.Ra7 Kb4 63.Kf2 a4 64.Ke3 Kb3 65.Kd2 e4 66.Rb7 Kc4 67.Re7 Kb3 68.Re4 a3 69.Kc1 a2 70.Re3 Kc4 71.Kb2 Kd4 72.Ra3 1–0. Lins,Thomas – Meier,Kurt, GER jub50 qJVM48 corr, 1996.

5.h3 b6 6.Qf3 Rb8 7.Nc3 Bb7 8.Qf5 c5 9.a3 Be7 10.Nf3 0–0 11.Ng5 h6 12.Nf3 Nh7 13.Be2 Bc8 14.Nd5 Ndf6 15.Ne7 Qe7 16.Qd3? (better is 16.Qc2=) 16...e4–+ 17.Qc2 ef3 18.Bf3 Bb7 19.Be2? (better is 19.Bb7 Rb7 20.0–0–+) 19...Bg2 20.Rg1 Bh3 21.Bd3 Ng5 22.f4 (22.Be2 Rbe8 23.f4–+) 22...Nf3 23.Kf2 Ng1 24.Rg1 Nh5 25.Qc3 Qh4 26.Kf3 (26.Ke2 Bg4 27.Kf1–+) 26...Nf6! 27.Bc2?? (27.Qf6 Bg4 Double attack) 27...Bg4 28.Rg4 Qg4 29.Kf2 Rbe8 30.d4 (30.b5 Ne4 31.Be4 Re4–+) 30...Ne4 (30...Qh4 31.Ke2 Ng4 32.Bc1 Qf2 33.Kd1 Ne3 34.Be3 Re3 35.Bh7 Kh8 36.Qd2 Qf1 37.Kc2 Ra3 38.Qd3 Qf2 39.Qd2 Ra2 40.Kd3 Rd2 41.Ke4 Rd4 42.Kf5 Qf4) 31.Be4 Re4 32.dc5 dc5 33.Qd3 Rfe8 (better is 33...Qh4!? 34.Kf3 Qh3 35.Ke2 Qg2 36.Ke1–+) 34.Be5 Qh4 35.Kf3 Qh1 36.Kg4 (36.Kf2 cb4 37.ab4 Qh2 38.Kf3 Qh3 39.Ke4 Qh1 40.Kd4 Rd8 41.Kc3 Qa1 42.Kc2 Qa2 43.Bb2 Rd3 44.Kd3 Qb2–+) 36...Qg1 (36...Qg2 37.Kh4 g5 38.Kh5 Qh3) 37.Kf3–+ Qh1 (37...Qh1 38.Kg4 Qg2 39.Kh4 g5 40.Kh5 Qh3) 0–1. nakpim – ftuanvn, internet, 2013.

5.a3 a5

6.b5 Nc5 7.d4 ed4 8.Bd4 Nce4 9.f3 Ng5 10.Nc3 Ne6 11.Nd5 Nd5 12.cd5 Nd4 13.Qd4 Bf5 14.e4 Bd7 15.Be2 f6 16.a4 Be7 17.Bd3 0–0 18.Ne2 f5 19.Qf2 fe4 20.Be4 Bh4 21.g3 Bf6 22.Rc1 b6 23.0–0 Be5 24.f4 Bb2 25.Rc2 Qf6 0–1. lican – sharpknife, internet, 2014.

6.d4 =+.

5.a4 c5

6.b5 a5 7.Be2= g6 8.Nc3 Bg7 9.Nf3 0–0 10.0–0 Re8 11.d3 Nb6 12.Nd2 Be6= 13.Bf3 d5 14.cd5 Nfd5 15.Nce4 Rc8 16.Nc4 Nc4 17.dc4+= Nb6 18.Nd6 Nc4 19.Nc8 Qd1 20.Rad1+= Nb2 21.Nd6 Rd8? 22.Nb7+– Rd1 23.Bd1 e4 24.h3 Bc4+/– 25.Re1?? Nd3?? 26.Re2+/– Nb2 27.Rb2 Bb2 28.Na5 Bd5 29.b6 Bc3 30.b7 Be5 31.Be2 Kf8 32.Bb5 Ke7 33.Bc6 Be6? 34.Be4+– c4 35.Nc6 (35.Nc6 Kd7 36.Ne5 Kc7 37.a5+–) 1–0. Zylla,Johannes – Hielscher, BSF–VM, 1992.

6.b5 a5 7.Nf3 Be7 8.d3 0–0 9.Be2 Re8 10.0–0 Qc7 11.Nc3 Nf8 12.d4 ed4 13.ed4 Rd8 14.d5 Ng6 15.Qc2 b6 16.Rfe1 Bd7 17.Bd3 Re8 18.Ne4 Ne4 19.Be4 Qd8 20.Bd3 Rf8 21.Re3 Bf6 22.Bf6 (22.Rae1!?+/–) 22...Qf6+= 23.Rae1 Rae8 24.Nd2 Re3 25.Re3 Re8 26.Re8 Be8 27.Ne4 Qe7 28.g3 Ne5 29.Be2 f5 30.Nc3 Bg6 31.f4 Ng4 32.Nd1 Nf6 33.Qd2 Ne4 34.Qe3 Kf7 35.Bf3 Qf6 36.Kg2 h5 37.h4 Kf8 38.Qe2 Qd4 39.Bh5 (better is 39.Be4 fe4 40.Ne3=) 39...Bh5–+ 40.Qh5 Qf6?? (better is 40...Qd2 41.Kh3 Qd1 42.Qf5 Nf6 43.Qc8 Kf7 44.Qe6 Kg6 45.h5 Kh6–+ (45...Qh5?! 46.Kg2–+)) 41.Qh8 Ke7 42.Qh5 Nd2?? (better is 42...Kf8=) 43.Qe2+– Ne4 44.Nf2 Qd4 45.Ne4 fe4 46.g4 Kf6 47.h5 g5 48.hg6! Kg6 49.Kg3 ½–½. Bouvier,Clement (1725) – Delpech,Olivier (1780), Montigny le Bretonneux–B 7th, 2008.

5.d4 Qe7

6.Nf3 g6 7.Nc3 c6 8.Be2 Bg7 9.0–0 0–0 10.a4 e4 11.Nd2 h5 12.a5 Re8 13.Ba3 Nf8 14.Rc1 Bg4 15.Bg4 hg4 16.b5 Rac8 17.a6 ba6 18.ba6 N8h7 19.Rb1 Rc7 20.Kh1 Ng5 21.Qa4 Qd7 22.Qa5 c5 23.Nb5 Rc6 24.Rfe1 (24.dc5 dc5 25.Nb3 Rec8+/–) 24...cd4 (better is 24...Qc8!?=) 25.Nd4+/– Re5 26.Rb5 Rc8 (26...Rb6!?+=) 27.Bd6! Rb5 (27...Qd6 28.Re5 Combination) 28.Nb5 (28.Qb5?! Qd6 29.Qg5 Qa6=) 28...Qf5 29.Bg3 Nh5 30.Qb4 (better is 30.Bh4!? Ne6 31.Qa2+/–) 30...Ng3+= 31.fg3 Bf8 32.Qb1 Bc5 33.Rf1 Qe6= 34.Qb3 Qa6 35.Nc3 Be3+= Exerts pressure on the isolated pawn 36.Nce4 Ne4 37.Ne4 Qc4 38.Nf6 Kg7 39.Ne8 Kf8 40.Qc4 Rc4 41.Nd6 Rc1 42.Rc1 Bc1 43.Kg1 Ke7 44.Nc4 Ke6 45.Kf1 Kd5 46.Na5 Bd2 47.Nb7 Bb4 48.Ke2 a5 49.Kd3 a4 50.Nd8 f5 51.Nf7? Be7 52.Nh8 a3 53.Kc2 a2 (53...a2 54.Kb2 Bf6 55.Ka2 Bh8–+) 0–1. Rottstaedt,Werner (2125) – Niermann,Michael (2135), Ruhrgebiet VL1, 2007.

6.Nf3 h6 7.Be2 b6 8.d5 Bb7 9.b5 a6 10.a4 a5 11.Nc3 g5 12.h3 Bg7= 13.e4 Nc5 14.Qc2 Bc8 15.Ba3 Nfd7 16.Nd2 Nb7 17.Nf1 Nf8 18.Ng3 Nh7 19.Qd1 Nf6+= 20.Nh5 Nh5 21.Bh5 0–0 22.g4 Nd8 23.Ne2 Bd7 24.Ng3 f6 25.Bg6 Bh8 26.Qf3 Qg7 27.Nf5 Qg6?? 28.Ne7 Kg7 29.Ng6 Kg6 30.h4 Nf7 31.Bc1 Rae8 32.Qg3 Bg7 33.hg5 fg5 34.Be3 Nd8 35.Qh3 Nf7 36.Qh5 Kf6 37.0–0–0 Rh8 38.Rdg1 Ref8 39.Rg3 Ke7 40.Rf3 Be8 41.Qg6 Rhg8 42.Qh5 Nd8?? 43.Qh3+– Rf3 44.Qf3 Rf8 45.Qg2 Nf7 46.Kd1 Nh8 47.Ke1 Ng6 48.Qg1 Nh4 49.Rh4! gh4 50.Qh2 Bf6 51.Bh6 Rh8 52.g5 Kd7 53.Qh3 Kd8 54.Qh4 Be7 55.Qg3 Rg8 56.f4 ef4 57.Qf4 Kc8 58.Qf5 Kb7 59.Qh7 Rg5 60.Bg5 Bg5 61.Qg8 Bh4 62.Kf1 Bd7 63.Kg2 Be1 64.Qg7 Be8 65.e5 Bc3 66.Qe7 Bg6 67.ed6 (67.ed6 Bb4 68.Qc7 Ka8 69.d7 Be4 70.Kh2 Bd6 71.Qd6 Bf5 72.d8Q Bc8 73.Qc8 Ka7 74.Qe7#) 1–0. Luettig,Hendrik – Gohlisch,Bruno, Pinneberg–ch op, 1998.

5.d4 g6

6.de5 de5 7.a3 Bg7 8.Nf3 0–0 9.Be2 Re8 10.0–0 e4 11.Nfd2 Ne5 12.Qc2 Bf5 13.Bd4 Nf3? 14.Nf3?? ef3–+ 15.Bd3 Bd3 16.Qd3 Ng4 17.Qd1? fg2 18.Kg2 Qg5 19.Kh3 Qh5 20.Kg3 Qh2 21.Kg4 Qg2 22.Kh4 g5 23.Kh5 Qh3 24.Kg5 Bh6 (24...Bh6 25.Kf6 Qe6#) 0–1. Jaszczuk,Juliusz – Geller,Efim P (2525), WchS Bad Woerishofen, 1991.

6.Nf3 e4 7.Nfd2 =.

6.Nf3 Qe7 7.Be2 Bg7 8.0–0 0–0 9.Nc3 c6 10.Qb3 Ne8 11.d5 c5 12.b5 f5 13.e4 f4 14.a4+= g5 15.h3 h5 16.Nh2 Ndf6 17.Qd1 Qf7 18.a5 Bh6 19.b6 a6 20.f3 Kh7 21.Na4 Rg8 22.Nc5 dc5=+ 23.Be5 Nd7 24.Bb2 Bg7 25.Qc2 Be5 26.Rae1 Nd6 27.Bd3 Qg7 28.Be5 Ne5–/+ 29.Rd1 Bd7 30.Be2 Raf8 31.Rfe1 Kh8 32.Rd2 g4 33.fg4 hg4 34.hg4 Bg4 35.Bg4 Ng4 36.Ng4 Qg4 37.e5 Nf5 38.Qd1?? f3–+ 39.e6 Qg2! 40.Rg2 Rg2 41.Kf1 Ng3# 0–1. Gutsko,Anastasiya – Rybenko,Ksenia, EU–ch U12 Girls, 1996.

5.Nf3 c5

6.a3 cb4 7.ab4 b6 8.Be2 Bb7 9.d3 Qc7 10.Nbd2 d5 11.Qb3 e4 12.de4 de4 13.Nd4 a6 14.0–0 Bd6 15.h3 0–0 16.Rfc1 a5 17.Nb5 Qb8 18.ba5 ba5 19.Bd4 (19.Nd6 Qd6 20.Ba3 (20.Qb7?! Qd2 21.Bf6 Nf6=) 20...Qd2 21.Rc2+/–) 19...Bb4= 20.Bc3 Nc5 21.Qb2 Bc3 22.Qc3 Attacks the isolani on a5 22...a4 23.Rcb1 Rd8 24.Nd4 Qe5 25.Rb5 Bc6 26.Ra5 Rab8?? (better is 26...Ra5 27.Qa5 Ra8+=) 27.Qa3+– Rd4 28.Rc5 Rd2? (28...Qc5 29.Qc5 Rd2 30.Qc6 Re2+–) 29.Re5 Re2 30.Rb5! Bb5 31.cb5 Rd2 32.Qa4 h5 33.Qb4 Rdd8 34.Ra7 Re8 35.b6 Nd5 36.Qc5 Nb6 37.Qc7 Rf8 38.Rb7 Rb7 39.Qb7 Nc4 40.Qe4 Nd6 41.Qe5 Rd8 42.Qe7 (42.Qe7 Nb7 43.Qb7+–) 1–0. Fournier,Frederic (1820) – Bernard,Marc Olivier, Open\Paris FRA, 2002.

6.b5 a6 7.a4 b6 8.Nc3 Bb7 9.Be2 Be7 10.d3 Qc7 11.Qc2 0–0 12.0–0 a5 13.e4+= Rfc8 14.Bc1 Nf8 15.h3 Ne6 16.Be3 Nd4 17.Bd4 ed4 18.Nd1 Rf8 19.Nh2 Nd7 20.f4 f5=+ 21.ef5 Rf5 22.Bg4 Rf7 23.Be6+/– Raf8 24.Bf7 Rf7 25.g3 Nf6 26.Qe2 d5+= 27.Nf2 dc4 28.dc4 g5 29.Nd3 Ne4+= 30.Qg4 Rg7 31.Qe6 Kh8 32.g4 gf4 33.Nf3 Ng3 34.Rf2 Be4 35.Nde5 Bd6 ½–½. Hasse,Peter – Jopp,Michael (1705), Germany, 2005.

6.b5 Nb6 7.Nc3 Be6 8.d3 Qc7 9.Ng5 Bd7 10.Be2 Be7 11.0–0 0–0 12.a4 a5 13.Bf3 h6 14.Nge4+= Be6 15.Re1 Rfd8 16.Nf6 Bf6 17.e4 Bg5= 18.Bc1 Bc1 ½–½. Borrmann,Fritz – Tzannetakis,Stefanos, CiF FT–95–0238B, 1995.

6.b5 e4 7.Ng5 h6 8.Nh3 =+.

5.Nc3 c6

6.a4 Be7 7.b5 0–0 8.Nf3 Re8 9.Be2 Nf8 10.0–0 h6 11.Qc2 Be6 12.d4 Qc7 13.de5 de5 14.Ne4 N6d7 15.Ng3 c5 16.Bd3 g6 17.Nd2 Bf6 18.Nde4 Bg7 19.f4 f5 20.Nd2 e4 21.Be2 Nf6 22.Kh1 Rad8 23.Rg1 Bc8 24.Ngf1 Qf7 25.h3 h5 26.Nh2 Bh8 27.g3 Qh7 28.Rg2 Re7 29.Nb3 Ne6 30.a5 b6 31.ab6 ab6 32.Ra8 Nc7 33.Rb8 Nd7–+ 34.Qd1 Ree8 35.Bh8?? Nb8 36.Bd4 cd4 37.Nd4 Ne6 38.Kg1 Nd4 39.ed4 Bb7 40.g4 h4 41.gf5 e3 42.d5 Nd7 43.Rg6+= Kh8?? 44.Qd4+– (44.Qd4 Ne5 45.Ng4+–) 1–0. Nikolic,Jovane (1695) – Kajiwara,Joao Kazuyuki, Sao Sebastiao BRA, Aberto do Brasil, 2013.

6.Rc1 Be7 7.d4 0–0 8.Nf3 e4 9.Nd2 d5 10.Qb3 Nb6 11.c5 Nbd7 12.b5 Re8 13.Qa4 Qc7 14.h3 Nf8 15.b6 Qb8=+ 16.ba7 Ra7 17.Qb3 Ng6 18.Na4 Be6 19.Nb6 Nd7 20.a4 f5 21.g3 Nf6 22.Be2 h5 23.h4 Bd8 24.Ba3 Ng4 25.Bb4 Bc7 26.Rg1 Qd8 27.a5 Qf6 28.Nf1 f4 29.Bg4 Bg4 30.gf4 Nh4 31.Nh2 Nf3 32.Nf3 ef3 33.Kd2 Bf4!–/+ 34.Kc2 Qf5 35.Kb2 Bc7 36.Rh1 g6 37.Rcg1 Re7 38.Re1 Kg7 39.Bc3 Re8 40.Qc2 Qc2 41.Kc2 Bf5 42.Kb3 Kh6 43.Bd2 Re4 44.Reg1 g5 45.Ra1 g4 46.Be1 Kg5 47.Kb2 h4 48.Rg1 Re8 49.Kc1 Bh2 50.Rf1 Bd3 51.Rh1 g3 52.fg3 hg3 53.Bg3 Bg3 54.Kd2 Be4 55.Rag1 Kg4 56.Nd7 f2 57.Nf6 Kf3 58.Ne8 fg1Q 59.Rg1 Ra5 60.Rf1 Bf2 61.Nd6 Ra2 62.Kc3 Ke2 63.Kb3 Ra5 64.Kb4 Ra6 65.Rc1 Be3 (65...Be3 66.Rc3 Bd4 67.Nb7 Bc3 68.Kc3 Ra3 69.Kb2 Ra7–+) 0–1. Skrivanek,Jan (2225) – Malac,Petr (2095), Czechia KP–chTA, 2007.

6.Qc2 Nb6 7.a3 =.

6.Qc2 Be7 7.Nf3 (7.Rd1 Qb6 8.a3 h6=) 7...0–0 (7...Nf8 8.Be2=) 8.Be2 (8.h3 g6=) 8...Qb6 (8...d5 9.b5=) 9.a3 Re8 10.0–0 Black's piece can't move: c8 10...Nf8 11.d4 ed4 (11...Qc7 12.de5 de5 13.Nb1=) 12.ed4 Black has a cramped position. (12.Nd4 Bd8=) 12...Ng6 (12...Bd7 13.Na4 Qd8 14.Kh1=) 13.d5 White has a very active position (13.h3 Nh8+=) 13...Nf4 14.Qd2 Ne2 15.Qe2 Black has the pair of bishops 15...Bg4 White has an active position 16.h3 Bh5 17.Qd3 Black has a cramped position (17.Rfe1 h6=) 17...Bg6 (17...Rac8 18.dc6 Bf3 19.Qf3 Qc6 20.Nd5 Nd5 21.cd5=) 18.Qd2 a5 19.b5 cb5 (19...Be4 20.Na4 Qd8 21.Rae1 cb5 22.cb5 Bf3 23.Bf6 Bf6 24.gf3+=) 20.cb5 White has an active position. (20.Nb5!? has some apparent merit 20...Rac8 21.Bd4+=) 20...Rac8 21.Rfe1 Kf8 White has a very active position (21...Nd7 22.Re3+=) 22.Nh4 (22.a4 Bd8=) 22...Rc4 23.Ng6 hg6 24.Rad1 Qc5 25.Re3 a4 26.Rde1 Qc7? (26...Bd8 27.Re8 Ne8 28.Ne4=) 27.Ne4 Ne4 28.Re4 Re4 29.Re4 Qc5 30.Qe2 Qd5= 31.Bg7 Kg7+= 32.Re7 Re7 33.Qe7 ½–½. Nemeth,Laszlo – Babucs,Illes, HUN–chT2 Erkel, 2002.

6.d4 ed4 7.ed4 Nb6 8.Nf3 Qe7 9.Qe2 Be6 10.Nd2 0–0–0 =.

6.d4 h6 7.Nf3 Qc7 8.Bd3+= Be7 9.0–0 Nb6 10.c5 Nbd7 11.cd6 Qd6 12.Nb5 cb5 13.de5 Qb4 14.ef6 Qb2 15.fe7 a6 16.Rc1 Qa2? 17.Rc8!+– Rc8 18.Bf5 Nf6 19.Qd6 Qc4 20.Bc8 Qc8 21.Rd1 Nd7 22.Ne5 f6 23.Nd7 Kf7 24.Nf8 Rf8 25.ef8R Qf8 26.Qd5 Ke7 27.Qd7# 1–0. Dopper,Johan – Andersson,Egart, corr TKM/A004, 2000.

6.Be2 d5 7.cd5 cd5 8.Qb3 d4 9.ed4+= ed4 10.Nb5+/– Be7 11.Nf3 a6 12.Nbd4+/– 0–0 13.0–0 b5? 14.Nc6+– Qe8 15.Rae1 Bb7 16.Bb5!! ab5 17.Ne7 Kh8 18.Ng5 h6 19.f4 hg5 20.Qh3 Nh7 21.Ng6! fg6 22.Re8 Rae8 23.Qd7 Be4 24.Qg7# 1–0. miehnekort – ed4nava, Yahoo! Chess Game, 2005.

6.Be2 Be7 7.Nf3 =.

6.Be2 g6 7.h4 h6 8.Qc2 Bg7 9.Nh3 Nf8 10.a4 a5 11.b5= Bf5 12.d3 Ne6 13.f3 Bh3 14.Rh3= Qb6 15.Qd2 d5 16.bc6 bc6 17.cd5 Nd5 18.Nd5 cd5 19.Ba3 d4=+ 20.ed4 Nd4–/+ 21.Ra2 Bf8 22.f4 Ba3 23.Ra3 Rb8 24.Rc3 0–0 25.fe5= Nf5 26.h5?? Rfe8?? 27.d4=+ Qd4 28.Qd4= Nd4 29.Rhe3 Ne2 30.Ke2 Rb4 31.hg6 fg6 32.Rc6 Rg4 33.Kf3 Rg5 34.Rc5 Kf7? 35.Ra5+– Rf5 36.Ke4 Re7 37.Rf3 Rf3 38.gf3 h5 39.f4 Ke6 40.Ra6 Kf7 41.a5 Rc7 42.f5 gf5 43.Kf5 h4 44.Rh6 Rc5 45.a6 Ra5 46.Rb6 h3 47.Rh6 h2 48.Rh2 Ra6 49.Rh7 Ke8 ½–½. Andersen,Ejnar – Stewart,Tanya (2010), Lyngby mT, 1996.

6.Nf3 d5 7.cd5 cd5 8.Qb3 e4 9.Nd4 Nb6 10.a4 Be6 11.a5 Nc8 12.Bb5 Bd7 13.Nd5 Be7? (better is 13...Bb5 14.Nf6 Qf6 15.Nb5 Qc6+/–) 14.a6+– (14.Ne7?! Ne7 15.Bc4 0–0+–) 14...b6 (14...Rb8 15.ab7 Bb5 16.bc8Q Qc8 17.Ne7 Qg4+–) 15.Nc6 (15.Ne7?! Ne7 16.d3 0–0+–) 15...Bc6 16.Bc6 Nd7 17.Ba8 0–0 18.Qc3 Nf6 19.Rc1 Nd6 (19...Re8 20.Bc6 Nd6 21.Qe5+–) 20.Qe5 Re8 21.Bc6 Rf8 (21...Kf8+–) 22.Ne7 Kh8 23.Qf6! gf6 (23...gf6 24.Bf6 Mate attack) 24.Bf6. Fournier,Frederic (2270) – Pascal183 (1810), echecsemail.com Coupe, 2007.

6.Qb3 Be7=+

7.Nf3 0–0 8.d4= ed4 9.ed4 Re8 10.Be2= Bf8 11.0–0 Ne4 12.Ne4+= Re4 13.Bd3 Re8 14.Rfe1 Re1 15.Re1+/– Nf6 16.a4 Bg4+= 17.Nd2 d5 18.c5 a6 19.b5 ab5+= 20.ab5 Qc8 21.Qc2 g6 22.f3 Bd7 23.b6 Ra2 24.Qb3 Ra8 25.Qc2 Nh5 26.g3+= Bh3 27.Nf1 Bf1 28.Bf1+= Ra2 29.Qb3 Ra8 30.Qe3 Ng7 31.Qe5 Qe6 32.Qe6 Ne6 33.Bh3 Nc5 34.dc5 Bc5 35.Kf1 Kf8 36.Bf6 Bb6 37.Rb1 Bd8 38.Bd8 Rd8 39.Rb7 c5 40.Rc7 c4 41.f4 Ra8 42.Bg4 Ra1 43.Kg2 Ra2 44.Kh3 h6 45.Bf3 Rd2 46.Rc5 d4 47.Rc4+– g5 48.fg5 hg5 49.Kg4 f6 50.Kf5 Rf2+/– 51.Kf6 Rf3 52.Kg5 d3 53.Rd4 Rf2 54.h4 d2+/– 55.h5 Kf7 56.g4 Ke6 57.Kg6?? Ke5= 58.Rd3 Rf6 59.Kg7 Rd6 60.Rd2 Rd2 61.h6 Rd7 62.Kg6 ½–½. Zalys – Bagusis, Montreal, 1983.

7.Nf3 a5 8.a3 e4 9.Ng5 d5 10.cd5 cd5 11.Nd5 Nd5 12.Nf7?? (better is 12.Qd5!? Bg5 13.Bg7+/–) 12...Kf7 (better is 12...Nc5!? 13.bc5 Kf7–/+) 13.Qd5= Kf8 14.Bc4 Qe8 15.Qe4 Bf6 16.Qf3 ab4 17.d4 Qe7 18.0–0? (better is 18.a4+=) 18...Nb6–+ (18...ba3 19.e4 ab2 20.Ra8+/–) 19.Bb3 ba3 20.Bc1 Be6 (better is 20...h5!? 21.e4 Bg4–/+) 21.Be6= Qe6 22.Ba3 Kf7 23.e4 Kg6 24.e5 Be7 25.Qe4 Kh6 26.Bc1 g5 27.Ra8 Ra8 (worse is 27...Na8 28.f4 Qc6 29.d5 Bc5 30.Kh1+/–) 28.h4 Qd5 29.hg5 Kg7 30.Qh4 Nd7 31.Qh6 Kg8 32.g6 Nf8 (32...Qd4?? 33.Qh7 Kf8 34.Qh8) 33.gh7 Nh7 34.Be3 b5 35.f4 Ra2 36.Qg6 Kh8 37.f5 Bg5 38.Qe8 Kg7 39.f6 (39.Bf2!?+/–) 39...Kh6= 40.Bf2 Bh4 41.g3 Ng5 42.Qh8+/– Kg6 43.Qg7 Kh5 44.gh4 Nf3 45.Kh1 Nh4? 46.Kh2 Nf3 47.Kg3 Ra3 48.Qg4 Kh6 49.Be3! Re3 50.Qf4 (50.Qf4 Kg6 51.Qe3+– (51.Rf3?! Rf3 52.Qf3 Qd4+/–)) 1–0. Baret,Antoine (2110) – Derieux,Christian (2135), FRA–chT2B, 2006.

5.Nc3 Be7

6.Nf3 0–0 7.d4 e4 8.Nd2 c6 9.Nce4 Ne4 10.Ne4 Re8 11.Be2 b6 12.Bg4 (12.0–0 d5 13.cd5 cd5+/–) 12...Bb7 (better is 12...d5!? 13.cd5 cd5=) 13.Qb3 d5 14.cd5 cd5 15.Nc3 Nf6 16.Bf3 The pressure on the isolated pawn grows 16...Rb8 17.0–0 Qd7 18.Rac1 Ba6 19.Rfd1?? (19.b5 Bb7 20.Ba3+–) 19...Bd6?? (19...Bc4 20.Qa4 Qa4 21.Na4 Bb4 22.a3+=) 20.h3?? (20.Nd5 Nd5 21.Bd5 Bb5+–) 20...Ne4?? (better is 20...Bc4 21.Qa4 Qa4 22.Na4 Bb4+=) 21.Nd5 Ng5 22.Bg4 Qb7?? 23.b5 Bb5 24.Qb5 a6 25.Qd3 Qd5 26.Qa6 f5 27.Be2 Red8 28.Qc4 Qc4 29.Rc4 1–0. Rush,Bradley – Bokadom,Mohamed, ZL–2011–0–00995, 2011.

6.Nf3 h6 7.d4 c6 8.Be2 g5 9.h3 Nf8? (better is 9...e4!? 10.Nd2 d5+=) 10.de5+– de5 11.Qd8 (worse is 11.Ne5 Qd1 12.Rd1 Bb4+/–) 11...Bd8 12.Ne5 Bc7 13.Ng4 Ng4 14.hg4 f5? (better is 14...Be5+–) 15.Nd5 Bd6 (15...cd5 16.Bh8 dc4 17.gf5 Bf5 18.Bc4+–) 16.Bh8 fg4 (16...cd5 17.c5 Bc7+–) 17.Rh6 Kd7 (17...Be6 18.c5 Bd5 19.cd6 a5 20.ba5 Ra5+–) 18.Bg4 Kd8 19.Rd6 Ke8 20.Bh5 Ng6 21.Bg6 Kf8 22.Rd8 1–0. Schellen,Anton – Van Dosselaer,Mattias, SE–2010–0–00051, 2010.

6.d4 ed4

7.ed4 0–0 8.g3 Re8 9.Bg2 Nb6 10.c5 dc5 11.bc5 Nc4 12.Bc1 c6?? 13.Nge2–/+ Bg4 14.f3 Bf5 15.0–0 Qc7 16.Qb3 Na5 17.Qa4 b6 18.Bf4 Qd7 19.cb6 ab6–/+ 20.Rab1? Bd6?? 21.Qd1?? Bf4–+ 22.Nf4 Rab8 23.Na4?? Bb1–+ 24.Qb1 b5 25.Nc5 Qd6 26.Rd1 Nc4 27.Qf5? Ne3 28.Qg5 Nd1 29.h4 Qd4 30.Kh2 h6 31.Qf5 Re5 32.Qh3 Qc5 33.g4 Re2! 34.g5 hg5 35.hg5 Qg5 36.Ne2 Qh5 37.Qh5 Nh5 38.f4 Re8 39.Nd4 Nf4 40.Bc6 Rd8 41.Nb5 Rd2 42.Kg3 Ng6 43.a4 Rc2 44.Be4 Nc3 45.Nc3?? Rc3–+ 46.Kf2 Ra3 47.Bc6 Ne5 48.Bb5 Ra4 49.Ba4 f6 50.Kg3 (50…Kf7 51.Bb3 Kg6 52.Kf4–+). slavisa11 – ontherooks, Live Game Caissa's Web, 2004.

7.ed4 c5 8.bc5 dc5 9.d5 Qb6 10.Qd2 0–0 11.Nf3 a6 12.Bd3 Bd6 13.0–0 Ne5 14.Ne5 Be5 15.Na4 Qd6 16.Be5 Qe5 17.Nc5 Qd6 18.Ne4 Ne4 19.Be4 b5 20.cb5 ab5 21.Qc2 g6 (better is 21...f5!? 22.Bf3 Bd7+/–) 22.Qc6+– Qb8 23.Rfb1 b4 24.Qc4 Ba6 25.Qb4 Qe5 26.Re1 Rab8 27.Qa5 Qd6 28.Bf3 Rb5 29.Qa4 Rfb8 30.h3 Rb4 31.Qc6 R4b6 32.Qd6 Rd6 33.Rec1 Rbb6 34.Rc6 Bb7 35.Rb6 Rb6 36.a4 Kf8 37.a5 Rd6 38.Rb1 Bd5 (38...Ba6+–) 39.Rd1 1–0. Humeau,C (2255) – Camblan,R, 1st Open Internaziunale d'Aiacciu, 2012.

6.Be2 0–0

7.Qc2 a5 8.b5 =+.

7.Qc2 c6 8.a3 b6 9.Nf3= Bb7 10.d4 Qc7 11.0–0+= Rfe8 12.Rac1 Bf8 13.Qf5 ed4 14.ed4 g6 15.Qf4 Bg7 16.Bd3 Rac8 17.d5 Nh5 18.Qd2 Ne5 19.Be2 cd5 20.Ne5 Be5 21.Bh5 gh5 22.f4 Bg7 23.Nd5 Bd5 24.Bg7 Be4? 25.Bb2+– Rf8 26.Qd4 f5 27.Qh8 Kf7 28.Qh7 Ke6 29.Qh5 Rg8 30.Rf2 Qc6 31.g3 Rce8 32.Rd2 Rd8 33.Qh6 Kf7 34.Qf6 Ke8 35.c5! Bh1 36.Qe6 (36…Kf8 37.Qf5 Ke8 38.Re1 Be4 39.Re4 Qe4 40.Qe4 Kd7 41.Rd6 Kc7 42.Qc6 Kb8 43.Rd8 Rd8 44.Be5 Rd6 45.Bd6#) 1–0. Levermann,Claus Peter – Solberg,Kirsten, Ruhrgebiet VK4, 1996.

7.Qc2 c6 8.a3 Nb6 9.Nf3 Ne8 10.d4+= ed4 11.Nd4 g6 12.0–0+/– Nc7 13.Rad1 d5 14.c5 Nd7 15.h3 Nf6 16.Bd3 Ne6 17.Rfe1 Ng5 18.Be2 Qc7 19.Bf1 Nfe4 20.Nce2 Bf6 21.h4 Bd4 22.Bd4 Ne6+= 23.Ba1 f5 24.Qb2+/– Qg7 25.Qc2 Qe7 26.g3 Nf6 27.Bg2 Bd7 28.Be5+/– Ne8 29.Qc3 Rf7 30.Rd2 Nf6+= 31.Red1 Ne4= 32.Be4 fe4 33.Nf4 Nf4 34.Bf4 a6 35.a4 Be6 (35...Be6 36.Rb1 Qd7=+; 35...Bg4 36.Rc1–/+) 0–1. Margraf,A – Gutgesell, Bayer Sen–EinzelM, 1992.

7.Qc2 c6 8.Nf3 d5 =+.

7.Nf3 d5 8.Nd5 Nd5 9.cd5 e4 =.

5.Nc3 g6

6.Nf3 c6 7.d4 e4 (7...Bg7 8.Be2=) 8.Nd2 d5 9.b5 Bg7 10.Ba3 Qa5 11.Qb3 a6 (11...Bf8!? 12.Bb2 Be7+=) 12.Bb4 Qd8 (12...Qc7+–) 13.bc6 bc6 14.cd5 cd5 15.Nd5 Rb8 16.Bc4 a5?? (better is 16...Bf8 17.a3 Bb4 18.ab4 Nd5 19.Bd5 Qe7+–) 17.Nf6 Qf6 18.Ne4 Rb4 (18...Qc6 19.Nd6 Kd8 20.Nf7 Ke8 21.Nd6 Kd8 22.Ba5 Ke7 23.Bb4 Rb4 24.Nc8 Rc8 25.Qb4 Ke8 26.Rc1 Qg2 27.Rf1+–) 19.Nf6 Bf6 (19...Nf6 20.Bb5 Kf8 21.Qa3+–) 20.Qc2 (20.Bf7!? Kf8 21.Qd5 Kg7+–) 20...Nb6 (20...0–0 21.Rb1+–) 21.Bd3 0–0 (21...Be6 22.Qc5 Nd7 23.Qa5+–) 22.a3 (22.a3 Bd4 23.ed4 Re8 24.Be2 Rd4 25.0–0+–) 1–0. Sopko,Cassio Roberto (1895) – De Gois,J (1915), Pan–American Seniors +50, 2014.

6.Nf3 Bg7

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

7.d4 ed4 8.Nd4 0–0 9.a3 Ne5 10.Be2 Bd7 11.0–0 Re8 12.Qc2 a6 13.Rfd1 Rc8 14.Nf3 Qe7 15.Ne5 de5 16.e4 c6 17.Na4 h5 18.Nb6 Rc7 19.Bc1 Nh7 20.Be3 Bf8 21.h3 Bc8 22.f4 Qh4+/= 23.Kh2?? Bh6 24.Nc8=/+ Rcc8 25.g3+/– Qf6 26.fe5 Qg7 27.Bd4 c5 28.Bc3+/– Re6 29.Rd7+– b6 30.Qd3 Nf8 31.Ra7 Bg5 32.Qf3 Be7 33.Rd1 Re8 34.Rd5 h4 35.Qe3 hg3 36.Kg2 Bh4 37.Bg4 g5 38.Kh1 Ng6? 39.Be6+– Re6 40.Ra8 Kh7 41.Qf3 Nf4 42.Bd2 g2 43.Kg1 Bg3 44.Qg4 Re5?? 45.Bf4 gf4 46.Qg7 Kg7 47.Re5 cb4 48.ab4+– 1–0. Levin,Naum L – Poliak,Evsey, UKR–ch sf Kiev, 1960.

7.Be2 0–0 8.Qc2 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Black's piece can't move: c8 11...Qe7 12.0–0 b6 13.Bb2 Bb7 14.Ra1 Ra8 15.Ra8 Ba8 16.Nb5 Qd8 17.Qa4 Bc6 18.Qa6 Nb8 19.Qa1 Ne8 20.c5 (20.d3 Nf6=) 20...Nd7 21.Na7 Bd5 22.c6 Nf8 23.Qa6 Ne6 24.Qd3? (24.Ne1 h5=) 24...Qa8?? (better is 24...e4 Black has a promising position 25.Qd5 ef3 26.Bf3 Bb2–+) 25.Qd5= Qa7 White has the pair of bishops 26.Qb3 Nd8 27.Ng5 h6 28.Nf7 Nf7=/+ 29.Bc4 Qa8?? forfeits the advantage 30.Bf7+– Kh7 31.Qc2 Nf6 32.g4 e4? 33.g5! hg5 34.Bf6 Bf6 35.Qe4 Qf8N 36.Qg6 Kh8 37.Qf6 Qg7 38.Qd8 Kh7 39.Qc7+– 1–0. Chernov,Igor (2300) – Gerasimova,Olga, Moscow–ch sf Silent, 1998.

7.Be2 0–0 8.d3 e4 9.de4 Ne4 10.Qc2 f5 11.0–0 Ndf6 12.Rad1 c6 13.Bd3 Qe7 14.Nd2 Ng5 15.Rfe1 Ng4 16.h3 Ne5= 17.f4 Nd3 18.Qd3 Ne6 19.Nf3 Rd8 20.Rd2 a5 21.a3 ab4 22.ab4 h6 23.g4 Nc7=+ 24.g5 d5 25.gh6= Bh6 26.c5 Na6 27.Nd1 Bg7 28.Bg7 Kg7 29.Ne5 Qh4 30.Ree2 Rh8 31.Rg2 Rh6 32.Qc3 Qf6 33.Rg5 Be6 34.Rdg2 Bf7 35.h4 Nc7 36.h5 Nb5 37.Qb2 d4 38.ed4+– Rah8 39.Ne3 Rh5 40.Nf5 Kg8 41.Ng6 Rg5 42.fg5 Qe6 43.Nfe7 (43.Nfe7 Qe7 44.Ne7 Kf8 45.g6 Ke7 46.gf7+–) 1–0. Long – Warton, Los Angeles, 1980.

5.Nf3 b6

6.a3 c5 7.b5 Be7 8.Be2 0–0 9.0–0 h6 10.d3 Nh7 11.Nbd2 Ndf6 12.e4 Bg4 13.a4 Nh5 14.h3 Bf3 15.Bf3 (15.gf3 Nf4 16.Re1 Bh4–+ (16...Nh3?! 17.Kf1–+)) 15...Nf4 16.Bg4 Nd3 17.Qc2 Nf4 18.g3 Ng6 19.Be2 Bg5 20.Nf3 1–0. Fournier,Frederic – TiborS, ICC, 2005.

6.b5 Bb7 7.d4 ed4 8.Bd4 Be7 9.Be2 a6 10.a4 d5 11.Nbd2 dc4 12.Nc4 Bb4= 13.Ncd2 c5 14.bc6 Bc6 15.0–0 0–0 16.Qb3 a5 17.Rfc1 Bd5 18.Qc2 Qe7 19.Bc4 Ba3 20.Bf6 Nf6 21.Ra3 (21.Ra3 Qa3 22.Bd5 Nd5 23.Nc4–/+). Hasler,Ulrich – Scholich, corr, 1965.

6.Be2 c6 7.0–0 Qc7 8.Nc3. lskr (1955) – resident evil, internet, 2007.

6.d4 ed4

7.ed4 Bb7 8.Nc3N a6 9.a4. Darkseid – alexson, ChessWorld.net, 2009.

7.ed4 Bb7 8.Be2 Be7 9.0–0+= d5 10.c5 a5 11.a3 0–0 12.Nbd2 bc5 13.bc5 c6 14.Re1 Re8 15.Qc2 Bf8 16.Bc3 Qc7 17.Bd3 g6 18.Re8 Re8 19.Qa4 Ra8 20.Nb3 Ne4 21.Ba5 Qf4 22.Qb4 Rb8 23.Qe1 Ndf6 24.Bb6 Bg7 25.Nbd2 Re8 26.g3?? Ng3 27.hg3 Re1–/+ 28.Re1 Qg4 29.Ne5? Qh3?? 30.Ndf3=+ h5 31.a4 Ng4 32.Ng4?? hg4?? 33.Ne5 Qh6+/– 34.a5?? Qd2=+ 35.Re2?? Qc1?? 36.Kg2=+ Qa1 37.Re3 Qd4–/+ 38.Nd7 Qa4 39.Re8 Kh7 40.Nf8 Bf8 41.Rf8= Kg7 42.Rb8 Qa3?? 43.Bf1+– d4 44.Rb7 d3? 45.Rd7 Qb4 46.Rd3 Qe4 47.Kg1 Qe1 48.a6 Qa1 49.a7 Qa5 50.Ba5 (50.Ba5 Kf8 51.a8Q Kg7 52.Bc3 Kh6 53.Qh8 Kg5 54.Qf6 Kh5 55.Qh4#) 1–0. Levin,Anatoly – Ros,Catalina, Internet Section, 2003

7.ed4 c5 8.b5+= cd4 9.Nd4 Bb7 10.Nf5 Nc5 11.Nc3 Qd7 12.Ne3 Be7 13.Be2 0–0 14.0–0 Rfd8 15.Bf3 Rab8 16.Re1 Bf3 17.Qf3 Nd3 18.Re2 Nb2 19.Rb2 Qb7 20.Qg3 Ne4 21.Ne4 Qe4 22.Re1 Qg6 23.Qf3 Re8+/– 24.Rbe2 Bg5 25.Nd5 Re2 26.Qe2 h6 27.Nc7 f5 28.Qd3 Rc8 29.Qd5 Kh8 30.Qb7 Rd8 31.Qa7+– f4 32.Qb6 f3 33.g3 Bd2 34.Rf1 Qh5 35.h4 Qf5 36.Kh2+/– Rf8? 37.Qc6 Qg6 38.b6 Bc3 39.b7 Qf5 40.Qb5 Qd3 41.Rg1 Qe2 42.Qb6 Qd2 43.b8Q Rb8 44.Qb8 Kh7 45.Qb1 Kh8 46.Rf1 Be5 47.Qg6 Qa2 48.Qe8 Kh7 49.Ne6 g6 50.Qf7 Kh8 51.Qg6 Qa7 52.Qe8 Kh7 53.Nf8 Kg7 54.Nd7 (54.Nd7 Bc3 55.Qf8 Kh7 56.Qf3 Qd7 57.Qc3+–) 1–0. Kus,Joanna – Gramcow,Dorota, Poland–ch U12 Girls, 2001.

7.ed4 Qe7 8.Be2 Bb7 9.0–0 0–0–0 10.Nbd2 g6 11.Re1 Bg7 12.Bd3 Qf8 13.Qc2 Re8 14.a4 Re1 15.Re1 Qd8 16.a5 Re8 17.ab6 ab6 18.d5 Re1 19.Ne1 Qe7 20.Nef3 Nh5 21.Bg7 Ng7 22.Nf1 Ne5 23.Ne5 Qe5 24.g3 Kd7 25.Ne3 Ke7 26.c5 Bd5 27.cd6 Qd6 28.Qc3 Ne6 29.Ng4 Ng5 30.Be2 f6 31.h4 Ne4 32.Qe1 h5 33.Ne3 c6 34.Kh2 Qe5 35.b5 c5 36.Nd5 Qd5 37.f3 Ng3 38.Kg3 Qe5 0–1. orangutandu – janekli, internet, 2013.

7.Nd4 Bb7 8.Nd2 (8.Nc3 a6=) 8...g6 (8...c5 9.Nc2=) 9.b5 (9.N2f3 c5 10.Nb5 cb4 11.Nd6 Bd6 12.Qd6 Bf3 13.gf3 Qe7=) 9...Bg7 10.N2f3 0–0 11.Be2 Nc5 12.0–0 Qd7 (12...a6 13.Nb3=) 13.Nd2 (13.Nb3 Nce4=) 13...Ne6 (13...a6 14.Bf3=) 14.Bf3+= Bf3 15.N4f3 (15.Qf3 Nd4 16.Bd4 Qe6+=) 15...a6= 16.a4 Rfe8 17.Qc2 Nc5 18.Rfd1 Nfe4 (18...Qg4 19.Bd4=) 19.Ne4 Ne4 (19...Re4 20.Bg7 Kg7 21.a5 ab5 22.cb5 Qb5 23.Nd4=) 20.Bg7 Kg7 21.Qb2 (21.a5 ab5 22.ab6 Ra1 23.Ra1 cb6 24.Qb2 Nf6 25.cb5 Rc8+/–) 21...Kg8 22.Qd4 Qe7 ½–½. Wuerfel,Raoul – Schaefer,Oliver, SEM Tourn–B, 2004.

6.d4 e4

7.Nfd2 g6 8.Nc3 Qe7 9.Qc2 Bb7 10.d5 Bg7 11.Nce4 0–0 12.Nf6 Nf6 13.Be2 Rfe8 14.0–0 Bc8 15.Bd3 a5 16.a3 Ng4 17.Bg7 Kg7 18.Qc3 Kg8 19.Nf3 Nf6 20.Rfe1 Ne4 21.Qc2 Bf5 22.Nd4 Qf6? (better is 22...Bd7+–) 23.f3 Ng5 24.Bf5 (24.Nf5?! gf5 25.Rab1 ab4 26.ab4 Qg7+–) 24...gf5 25.Qf5 Qg7 (25...Qf5 26.Nf5 f6 27.e4+–) 26.h4 Re5 27.Qd7 (better is 27.Qd3 c5 28.dc6 Ne6+–) 27...ab4 (27...Re3 28.Re3 Qd4+–) 28.ab4 Nf3 (28...Ra1 29.Ra1 h5 30.hg5 Qg5 31.f4+–) 29.Nf3 (29.Nf3 Ree8 30.Ra8 Ra8 31.Qc7+–) 1–0. Jaramillo,Carlos Orlando (1930) – Rosero,Hugo Alberto (1660), Ibague COL, Men Ch, 2013.

7.Nfd2 d5

8.a3 c6 9.cd5 cd5 10.Nc3 Bb7 11.Be2 g6 12.0–0 Bg7 13.Nb5 0–0 14.Nd6 Qb8 15.Nb7 Qb7 16.Rc1 h6 17.Bb5 Rfc8 18.Qa4 Nb8 19.Rc8 Qc8 20.Rc1 Qb7 21.Qc2 a6 22.Ba4 b5 23.Bb3 Nbd7+= 24.f3 Nb6 25.fe4 Rc8 26.Qb1 Rc1 27.Qc1 Ne4 28.Ne4 de4 29.Qc5 Bf8 30.Qe5 Qe7 31.Qg3 Qd6 32.Qg4+/– Qc6 33.d5! Nd5?? 34.Qe4+– Nb4 35.Qd4 (35.Qd4 Qc1 36.Bc1 Nc2 37.Qf6 g5 38.Qf7 Kh8 39.Qg8#) 1–0. Woelfelschneider,Peter – Schneider,B, corr private, 1987.

8.b5 a6 =.

8.b5 dc4 9.Bc4 Bd6 +=.

8.c5 c6=+ 9.Be2 Be7 10.0–0 0–0 11.f3 a5 12.fe4 de4 13.b5 bc5 14.bc6= Nb6 15.Nc3 Nfd5 16.c7 Qc7–/+ 17.Nd5 Nd5 18.Bc4 Ne3 19.Rf7 Nc4 20.Rf8 Bf8 21.Nc4 cd4 22.Rc1 d3 23.Kh1 Be6 24.Qa4 Bc4 25.Rc4 Qb6 26.Bd4 Qb1 27.Bg1 e3 28.Qc6 Rb8 29.Rc1? Qa2–+ 30.Be3 Rb1 31.Rb1 Qb1 32.Bc1 Qb3 33.h3 d2! 34.Bd2 Qd1 35.Kh2 Qd2 36.Qe6 Kh8 37.Qe8 Qb4 (37...Qb4 38.Kg1 Qf4–+) 0–1. Labahn,Wolfgang – Bonjean,M, GER, 1990.

8.cd5 Nd5 9.Ne4 Bb4 10.Nbd2 +=. W Labahn.

6.Be2 Bb7

7.0–0 c5 8.b5 Be7 9.d3 Nf8 10.Nc3 Ng6 11.Qc2 0–0= 12.Nd2 Qc7 13.Bf3+= Nh4 14.Bb7 Qb7 15.e4 Qd7 16.h3 Ng6 17.Ne2 Nh5 18.Ng3 Nhf4 19.Nf3 Nh4 20.Nh4 Bh4 21.Bc1 Bf6 22.Be3 a6= 23.a4 Ra7 24.a5 ab5 25.ab6 Rb7 26.cb5 Rb6 27.Rab1 Rb5 28.Rb5 Qb5 29.Bf4 ef4 30.Nf5 Be5 31.Rb1 Qa6 32.Qb3 g6 33.Ne7 Kg7 34.Qd5 Bd4 35.Qb3 Re8 36.Nd5=+ f3 37.Nc7+/– Qc8 38.Ne8 Qe8 39.Qd5 Qd7? 40.Rb7+– Qe8 41.Qd6 fg2 42.Kg2 Qe5 43.Qe5 Be5 44.Rb5 Bd4 45.f4 Kh6 46.Rb7 Kg7 47.Kf3 h5 48.e5 Kf8 49.Ke4 f6 50.Kd5 g5 51.ef6 gf4 52.Ke6 (52.Ke6 Bf6 53.Kf6+–) 1–0. Kreuzer – Buechler, 1985.

7.0–0 Qe7 8.Nc3 a6 9.d4+= e4 10.Nd2 0–0–0 11.a4 g6 12.Nd5?? Nd5= 13.cd5 Bd5?? 14.Ba6+– Bb7 15.Qe2 d5 16.Bb7 Kb7 17.a5 Qe6 18.b5 c5? 19.dc5 Nc5 20.Bh8 Nd3 21.ab6 Kb6 22.Ra6 (22.Ra6 Kb5 23.Re6 fe6 24.f3+–) 1–0. mtr – 000, Caissa's Web, 2001.

7.0–0 h6 8.d4 e4 9.Nfd2 d5 10.c5 c6 11.Nc3 b5 12.a4 a6 13.ab5 ab5 14.Ra8 Ba8 15.f3 Be7 16.fe4 de4 17.Nce4 Nd5 18.Qb3 0–0 19.Bb5 cb5 20.Ng3 Bg5 21.Nf3 Be3 22.Kh1 Re8 23.Bc1 Bc1 24.Rc1 Nf4 25.Nf5 Bd5 26.Qd1 Re2 27.Rc2 Rc2 28.Qc2 1–0. bauska18 – mateusz2metry, internet, 2014.

7.d4 ed4 8.Bd4 Be7 9.0–0 0–0 10.Nbd2 c6 11.Qc2 d5 12.c5+= bc5 13.bc5 Nb8 14.Rab1 Ba6? 15.Rb8!+– Rb8 16.Ba6 Qa5 17.Bd3 g6 18.Ne5 Qc7 19.Qc3 Nd7 20.Ndf3 Ne5 21.Be5 Qb7 1–0. Eisenhauer,Erik – Baur,Markus, SJRH–ch U18 Worms, 2001.

7.0–0 Be7

8.a3 0–0 9.Nc3 Ne4 10.Ne4 Be4 11.d3 Bb7 12.Rc1 a5 13.b5 Bf6 14.e4 Nc5 15.a4 Ne6 16.g3 Ng5 17.Ng5 Bg5 18.Rc2 f5 19.ef5 Rf5 20.Bg4 Rf8 21.d4 ed4 22.Bd4 Bf6 23.Be6 Kh8 24.Bd5 Rb8 25.Re2 Bc8 26.Be6 Bd4 27.Qd4 Rf6 28.Bc8 Rc8 29.Rfe1 Rf7 30.Qg4 Rb8 31.Re6 Qf8 32.Qe2 Rc8 33.f4 g6 34.Qe4 Qg7 35.Qc6 Qd4 36.Kg2 g5 ½–½. Kislov,Leonid – Smirnov,Vladimir A, Omsk RUS, City Ch, 2012.

8.d3 0–0 9.Nfd2 (9.Nc3 a5 10.b5 Nc5=) 9...h6 (9...d5!?+=) 10.Bf3= Bf3 11.Qf3 Nh7 (11...a5 12.a3=) 12.Qe2 Ng5 13.f4 ef4 14.ef4 Nh7 (14...Bf6 A) 15.fg5? Bb2 16.Na3 Bd4 (16...hg5?! 17.Rab1 Ba3 18.Rb3–+) 17.Kh1 Ba1 18.Ra1 Qg5–+; B) 15.Nb3 Ne6 16.f5=) 15.Nc3+= Ndf6 16.Rae1 Re8 17.Qf3 Bf8 (17...Qd7 18.Nb3+=) 18.Nd5 (18.Re8 Qe8 19.Rc1 c6+/–) 18...Nd5 19.Qd5 Qd7 20.b5 a5 (20...Be7 21.Ne4+/–) 21.a4 (21.Ne4 Be7+/–) 21...Re1 22.Re1 (worse is 22.Qa8 Re2 23.Rf2 Re1 24.Rf1 Re2=) 22...Re8 23.Re8 Qe8 24.Qe4 (24.Ne4 Qe6 25.f5 Qe7+/–) 24...Qd8 25.Nf3 Nf6 26.Qe2 (26.Bf6 Qf6 27.d4 Qe7=) 26...d5= 27.Bf6 Qf6 28.Qe5 Qe5 29.Ne5 dc4 30.dc4 Bd6 31.Nd3 Kf8 32.Kf2 Ke7 33.Kf3 Ke6 34.g4 f5 35.h3 g5 36.Ke3 ½–½. Hungeling,Roland (1705) – Boeckmann,Dirk, Bezirksliga Steinfurt, 2008.

8.d4 e4 9.Nfd2 c5N 10.b5 d5 11.Nb3 0–0= 12.Nc3 Rc8 13.dc5 Bc5 14.Nd4 dc4=+ 15.Bc4 Ne5 16.Qe2?? Nd3 17.Rfd1?? Bb4?? 18.Nc6 Bc6= 19.bc6 Rc6 20.Ne4+/– Ne4 21.Rd3 Qc7 22.Bd5 Nc3 23.Qg4+/– (23.Qg4 Rd8 24.Bf7 Kf7 25.Rd8 Qd8 26.Qb4+/–) 1–0. Chirpii,Alexandru (1650) – Micsa,Liviu (1700), Centrocoop Sept op–A, 1998.

8.d4 e4 9.Nfd2 c6N 10.Nc3 d5 11.b5 0–0 12.bc6+/– Bc6 13.cd5 Nd5 14.Nde4 Nc3 15.Nc3 Qc7 16.d5 Bb7 17.Nb5 Qb8 18.d6+– Bf6 19.Bf6 Nf6 20.Nc7 Rd8 21.Bd3 Rd6 22.Bh7! Nh7 23.Qd6 Nf6 24.Rfd1 Kh7 25.Na8 Qd6 26.Rd6 Ba8 27.Rad1 Be4 28.R1d4 Bg6 29.Rh4 Bh5 30.g4! 1–0. Bonetti,Shane – guest661, ICC, 2002.

8.d4 Bf3 9.Bf3+= e4 10.Be2 0–0 11.Nc3 c5 12.Qc2 cb4+= 13.Ne4 Ne4 14.Qe4+/– f5 15.Qc2 Bf6 16.Qf5+– Bd4?? 17.Qe6 Kh8 18.ed4 Rf6 19.Qd5 Qe8 20.Bg4 Ne5 21.de5 (21.de5 de5 22.Bd7+–) 1–0. Bonetti,Shane – BigThought, ICC, 2002.

6.Be2 c5

7.b5 Be7 8.Nc3 Qc7 9.Qc2 Bb7 10.a4 0–0 11.Nh4 d5 12.Nf5 d4?? 13.Ne7+– Kh8 14.Ned5 Nd5 15.Nd5 Qd6 16.e4 Qg6 17.Bf3 Nf6 18.Ne7 Qh6 19.Nf5 Qg6 20.d3 Bc8 21.Ne7 Qh6 22.Bd1 g5 23.h4! Qg7 24.hg5 Ng8 25.Nf5 Bf5 26.ef5 f6 27.g6 h6 1–0. Kraemer – Jeutner, Dresden, 1985.

7.b5 g6 8.0–0 Bg7 9.d4 0–0 (9...cd4!? 10.ed4 e4+=) 10.de5+/– de5 11.Ne5 (11.Be5?! Ne5 12.Ne5 Qd1 13.Rd1 Ng4 14.Ng4 Ba1+=) 11...Ne4? (11...Ne5 12.Be5 Bb7 13.Nd2+/–) 12.Nc6 (12.Qd5!? Ne5 13.Qa8 Nf3 14.Bf3 Bb2 15.Be4 Ba1 16.Qa7 Be6+–) 12...Qc7 13.Ne7 Kh8 14.Bg7 (14.Nc8? Bb2 15.Nb6 ab6–+ (15...Ba1 16.Nd7 Rad8 17.Nd2+=; 15...Nb6?! 16.Nd2 Nc3 17.Qe1–+; 15...Qb6?! 16.Bf3 Ba1 17.Be4–+)) 14...Kg7 15.Nd5 Qe5 16.Nd2 Ndf6 17.Ne4 Ne4 18.Qc2 Bf5 (18...Nd6 19.f4 Qe4 20.Bd3+–) 19.Bd3 (19.g4 Bd7 20.f4 Qe8+–) 19...Nf6 20.f4 Qd6 21.Bf5 gf5 22.Qf5 Rg8?? (22...Nd5 23.cd5 a6+–) 23.Qg5 Kf8 (23...Kh8 24.Qf6 (24.Nf6?! Rg5 25.fg5 Qd3=) 24...Qf6 25.Nf6+–) 24.Qf6 (better is 24.Qh6 Ke8 25.Nf6 Ke7 26.Ng8 Rg8 27.Qh7 Rd8+–) 24...Qf6 25.Nf6 Rg6 26.Nh7 Kg8 27.Ng5 Re8 28.e4 f6 29.Ne6! f5 30.ef5 Rf6 31.g4 Kh8 32.h4 Re7 33.Rae1 Rd7 34.Rd1 Rdf7 35.Rd8 Kh7 36.Rfd1 Rh6 37.R1d7 Rd7 38.Rd7 Kg8 39.h5 Rf6 40.Kf2 Kh8 41.g5 Rf5 42.g6 Rh5 43.Rd8 1–0. Fournier,Frederic (1860) – Eltov, Open vermeulen mai, 2004.

6.Be2 Be7

7.0–0 0–0 8.Qc2 Bb7 9.b5 (9.Nc3 a5 10.a3 h6+=) 9...Re8 10.d4 Bf8 11.d5 (11.Nc3 g6+=) 11...Nc5 12.Nc3 g6 13.e4 Bg7 14.a4 a5 15.Nd2 Bc8 16.Bc1 Bh6 17.Nb3 Bc1 18.Nc1 Qe7 19.h3 h5 20.Nb3 Nb3 21.Qb3 Nh7 22.Nb1 Qg5 23.Ra3 Kg7 24.Qb2 f6 (24...Nf6 25.Re3=) 25.Rg3 Qh6 26.Nd2 h4 27.Re3 g5 (27...Ng5 28.Rd1=) 28.Bg4 (28.c5!? dc5 29.Nc4+=) 28...Bg4+= 29.hg4 Nf8 30.Rh3 Qg6 31.g3 hg3–/+ 32.fg3 Nd7 33.Kg2 Rh8 34.Rfh1 Rh3 35.Rh3 Rh8 36.Rh8 Kh8 37.Qc2 Nc5–+ 38.Kg1 Qh7 39.Kg2 Kg7 40.Kf3? Qh1 41.Kf2 Qh2 42.Kf3 Na4! 43.Qa4 Qd2 44.Qb3 Kg6 45.Qb1 Qc3 46.Kf2 Qc4 47.Kf3 a4 48.Qh1 Qb5 49.Qh8 Qd7 50.Qg8 Qg7 51.Qe8 Qf7 52.Qa4 Kg7 53.Qc6 Qe7 54.Kg2 Kf7 55.Qa8 Qe8 56.Qb7 Qd7 57.Qb8? Kg7 58.Kf2 b5 59.Kf3? c5 60.dc6 Qc6 61.Qd8 Qc3 62.Kf2? Qc2 63.Kf3 Qb3 64.Kf2 Qe6 65.Qb8? Qa2 66.Kf3 Qb3 67.Kf2 Qc2 68.Ke3 Qc3 69.Kf2 Qd2 70.Kf3 b4 71.Qc7 Kg6 72.Qc4?? Qc3–+ 73.Qc3 bc3 74.Ke3 Kf7 75.Kd3 Ke6 76.Kc3 d5 77.ed5 Kd5 78.Kd3 e4 79.Ke3 Ke5 80.Ke2 Kd4 81.Kd2 e3 (81...e3 82.Ke1 Ke5–+) 0–1. Fischbach,Rainer (1885) – Ebert,Karsten (1900), Leipzig VfB op, 2008.

7.d4 ed4 8.Nd4+= Ne5 9.Nd2 0–0 10.0–0 c5 11.N4f3 Nc6 12.b5+/– Na5 13.e4 Be6 14.Qc2 Qc7 15.Rfd1 Rad8 16.Nf1 Rfe8 17.Ne3 h6 18.Bc3 Nb7 19.Nd2 Nd7 20.Nb1 Bf6 21.Bf6 Nf6 22.Nc3 Na5 23.Ncd5+/– Bd5 24.Nd5 Nd5 25.Rd5 f6 26.Rad1 Nb7 27.Qd3 Re5 28.f4 Re7 29.Bh5 Red7 30.Bg6 Re7+/– 31.Bf5 Ree8 32.Qg3 g5 33.fg5 fg5 34.Qh3 Qg7 35.Be6 Kh8 36.R5d3 Rf8 37.Bd5 Rf6? 38.Bb7 Qb7 39.e5! Rg6 40.Rd6 Rdd6 41.Rd6 Rd6?? 42.ed6 Qe4 43.Qh6 Kg8 44.Qg5 (44.Qg5 Kf8 45.Qe7 Qe7 46.de7 Ke8 47.Kf2 Ke7 48.h4+–) 1–0. Kreuzer – Stolle, 1980.

5.Nf3 c6

6.a4 Qc7 7.Be2 d5 8.0–0 Bb4 9.Qb3 a5 10.cd5 cd5 11.Rc1 Qd6 12.Nc3 0–0 13.Nb5=+ Qb8 14.Nc7+= Nc5 15.Rc5+/– Bc5 16.Na8 Qa8 17.Be5 Be6 18.Bf6 gf6 19.d4 Bb4 20.Bb5 Rc8 21.Qd1 Rc3 22.Rc1 Qc8 23.Rc3 Qc3 24.h3 Kf8 25.Qd3 Qd3 26.Bd3 Bd7 27.Bc2 Kg7 28.Kf1 b5= 29.Bb3 Bc6 30.Ne1?? ba4–+ 31.Bd1 Bb5 32.Be2 Be2 33.Ke2 Be1 (33...Be1 34.Kd3 Bf2–+) 0–1. Ruhle,Ernst Albrecht – Waldhart,Helmuth, Seefeld op, 2003.

6.Nc3 Be7 7.d4 Qc7 8.Be2 0–0 9.0–0 Re8 10.Qb3 Nf8 11.de5 de5 12.a3 Ng6 13.Rfd1 Bg4 14.Nd2 Rad8 15.Bg4 Ng4 16.h3 Nf6 17.Nde4 Ne4 18.Ne4 Rd1 19.Rd1 Rd8 20.c5 Rd7 21.Rd7+= Qd7 22.Qc3 Qd1 23.Kh2 Qf1 24.Qd2 Nh4 25.f3+= f5 26.Ng3 Qf3+= 27.Be5 Qd5 28.Qd5 cd5 29.Nh5 g5 30.Nf6 Bf6 31.Bf6 h6 32.b5 Kf7 33.Be5 Ng6 34.Bb8 Ke7 35.Ba7 Kd7 36.Bb8 Nf8 37.Kg3 Ne6 38.Ba7 f4 39.ef4 Nf4 40.Kf3 Kc7 41.Bb6+– Kc8 42.Ba5 h5 43.Bc3 Ne6 44.Bf6 Kd7 45.Ke3 Nc5+= 46.Bg5 Ne4 47.Bf4 Nc3 48.b6 Ke6 49.Kd3 Na4 50.Bc7 Nc5 51.Ke3 Nd7 52.Kd4+– Nf6 53.a4 Ne4 54.a5 Kd7 55.Kd5 Nc3 56.Ke5 Nb5 57.Kf5 Nd4 58.Kg5 Nc6 59.Kh5 (59.Kh5 Na5 60.h4+–) 1–0. Geisensetter,Kurt – Berard,Guenter, corr DDR, 1985.

6.d4 Qc7 7.Nfd2 Be7 8.Be2 0–0 9.Nc3 Re8 10.b5 Nf8 11.a4 Ng6 12.0–0 ed4 13.ed4 Nf4 14.Bf3 d5 15.c5 Nd3=+ 16.Qb3 Nb2 17.Qb2=+ Qf4 18.a5 Bg4 19.Ne2 Qg5 20.a6 ba6 21.bc6+= Bd8 22.Qc3 Bc7 23.h3?? Bh3 24.Ng3 Bg3 25.fg3 Qg3 26.Ra3?? Nh5 27.Bd5+– Qg5 28.Bf7 Kh8 29.Qh3 Nf6 30.Nf3 Qf4 31.Ne5 Qd4 32.Re3?? Re5–+ 33.Rfe1 Re3?? 34.Re3?? Qd1–+ 35.Kh2?? Ng4 36.Qg4?? Qg4 37.c7 Qf4 38.Rg3 Qc7 (38...Qc7 39.Bc4 Qc5–+; better is 38...Qf7!? 39.Rc3–+) 0–1. toll (2040) – DarthVadar (2095), ICC, 2003.

6.Be2 Qc7 7.a3 d5 8.cd5 cd5 9.Nc3 a6 10.Rc1 Qb8 11.0–0 Bd6 12.Na4 (12.h3!?=) 12...b5 13.Nc3 0–0 14.d3 Bb7 15.Qd2 (15.h3 Rc8=) 15...Qa7 (15...e4!? 16.Nh4 d4 17.Ne4 Be4 18.de4 A) worse is 18...Ne4 19.Qd3 Nef6 20.Nf5+= (20.ed4?! Bh2 21.Kh1 Bf4=); B) 18...Bh2?! 19.Kh1–/+; C) 18...de3 19.Qe3 Bh2 20.Kh1 Bf4–+) 16.Rc2 Rac8 17.Rfc1 Rc7 18.Nd1 (18.Nb5!? Rc2 19.Na7 Rd2 20.Nd2+/–) 18...Rfc8 19.Rc7 Rc7 20.Rc7 Bc7 21.Qc3 Qb8 22.g3 Ne8 23.d4 e4 24.Ne5 Nb6 25.Qc1 Na4 26.Ba1 Bd6 27.Nc3 Qc7 28.Qd2 Nb6 29.Nd1 Nc4 30.Nc4+= dc4 31.Bc3 Bd5 32.f4?? f5 33.Nf2 a5 34.Nh3 h6 35.Nf2 Qe7 36.ba5 Ba3 37.a6 b4 38.Ba1 c3 39.Qc2 Nc7 40.Nd1 Qd6 41.Nc3 bc3–+ 42.Qc3 Bb4 43.Qb2 Na8 44.Kf2 Nb6 45.a7 Na8 46.Kg2 Qb6 47.Kf2 1–0. Fournier,Frederic – l7169, Active (5/0), 2005.

6.Be2 Be7 7.d3 0–0 8.0–0 b6 (8...Qb6 9.Bc3=) 9.e4 (9.Nc3 Bb7+=) 9...Bb7 10.Nc3 Rc8 (10...a5 11.b5=) 11.Qb3+= c5 12.b5 Re8 13.Nd5 Nd5 14.cd5 Nf6 (14...Qc7 15.Nd2+=) 15.Nd2+/– Bf8 16.Nc4 Qd7 (16...Ra8 17.a4+/–) 17.a4 Kh8 (17...Ra8 18.a5 Qc7 19.Bc3+/–) 18.a5+– ba5? (better is 18...Qc7+–) 19.Ra5 Ra8 20.Rfa1 Qc7 (20...Bc8 21.Nb6!! ab6 22.Ra8+–) 21.Ra7 Ra7 (21...Reb8 22.b6 Qc8 23.Bc3+–) 22.Ra7 Ra8 (22...Kg8 23.b6 Qb8 24.Na5+–) 23.b6 Qc8 (23...Qb8 24.Qa4+–) 24.Na5 Ra7 (24...Rb8+–) 25.ba7 Qa8 (25...Ba8 26.Qb8 Qe8+–) 26.Qb7 (26.Qb7 Qb7 27.Nb7+–) 1–0. pierred – anony, internet, 2015.

6.Qc2 Be7

7.Be2 0–0 8.0–0 Qb6 9.a3 =.

7.Be2 0–0 8.0–0 e4 9.Nd4 c5 10.bc5 dc5 11.Nf5 g6 12.Ng3 Bd6 13.Nc3 Re8 14.Nce4 Ne4 15.Ne4 Qc7? (better is 15...Bh2!? 16.Kh2 Qh4 17.Kg1 Re4+/–) 16.f4 f5?? (better is 16...f6+–) 17.Qc3 (17.Nd6?! Qd6 18.Bf3 Nf6+–) 17...fe4 (17...Be5 18.fe5 fe4+–) 18.Qg7 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

7.Be2 0–0 8.0–0 Re8 9.d3 Bf8 10.Nbd2 d5 11.a3 a5 12.c5 Qc7 13.Nb3 ab4 14.ab4 Ra1 15.Ra1 e4 16.Nfd2 ed3 17.Bd3 Ne5 18.Be2 Neg4 19.g3 Ne4 20.Bg4 Bg4= 21.Ne4 Re4 22.Bd4 Re6 23.Nd2 h5 24.h4 Be7 25.Ra8+= Bf8 26.Kg2 Rg6 27.Kh2 Bc8 28.Nf3 Qd7 29.Ng1 Be7 30.Qe2 Rg4 31.f3 Rg6 32.Qc2 Qd8 33.Qf2 Qc7 34.f4 f6 35.Qc2 Rg4?? 36.Nf3 Qd7 37.Ng1 g6 38.Qf2 Qc7 39.Nf3 Kf7 (39...Kh7!?=) ½–½. Timofeeva,Valentina – Mosionzhik,Bronia, Ozery op2 Seniors (Women), 1997.

7.Be2 e4 8.Nd4 =.

5.Nf3 e4

6.Ng5 h6 7.Nh3 c5 8.bc5 Nc5 9.d4 ed3 10.Bd3 Bh3 11.gh3 d5 12.Nc3 d4 13.Ne4?? Qa5 14.Qd2 Nd3 15.Ke2 Qd2 (15...Qd2 16.Kd2 Nb2 17.Nf6 gf6 18.ed4 Nc4 19.Kd3 b5–+; 15...Ne4 16.Qa5 Nef2 17.Qb5 Kd8 18.Bd4+–) 0–1. gtate (1900) – frenk (2075), net–chess.com, 2004.

6.Nd4 c5

7.Nc2 cb4 8.Nb4= Nc5 9.d4 (9.Bf6 gf6 10.Nc3 Be6=) 9...ed3+= 10.Nd3 Bd7 11.Be2 Ba4 (11...Qa5 12.Nd2=) 12.Qc1+= Nd3 13.Bd3 Be7 (13...d5 14.0–0 Rc8 15.Bf6 Qf6 16.Nc3+=) 14.0–0+= 0–0 15.Nc3 Bc6 16.Rd1 Rc8 17.Qc2 Qa5 18.Qe2 Qg5 (18...a6 19.a4=) 19.Qf1 (19.f4 Qa5+=) 19...Rfe8 (19...a6 20.g3=) 20.Nb5= a6 (20...Rcd8 21.Nc7 Rf8 22.Nd5 Nd5 23.cd5 Bd5 24.f4+=) 21.Nd4 (21.Na7 Rb8 22.Nc6 bc6+=) 21...Bd7 (21...Be4 22.g3=) 22.Rac1 Bf8 23.Bc3 Ne4 24.Nf3 Qh5 25.Bb4 Nc5 (25...Ba4 26.Re1=) 26.Be2 Qg6 27.Nd4 f5 28.Nb3 Nb3 (28...Bc6 29.Nd4=) 29.ab3+= Attacking the isolated pawn on d6 29...Bc6 30.Rd4 Re4 31.Rcd1 (31.Bd3 Rd4 32.ed4 Qf6+=) 31...Rce8 32.Bd3 (32.Re4 fe4 33.Rd2 Be7+=) 32...Rd4= 33.ed4 Bf3 34.Re1 Re1 35.Be1 Bc6 (35...Be7!?=) 36.d5+= Bd7 37.Bc3 Qg5 38.Qe1 f4 (38...g6!?+=) 39.Qe4+/– f3 40.Bf1 (better is 40.Qf3 g6 41.Bf6+/–) 40...fg2= 41.Qg2 Qc1 42.Qg3 h5 43.Kg2 h4 44.Qd3 Qg5 45.Kh1 Bf5 46.Qe3 Qg4 (46...Qe3 47.fe3 Kf7 48.Kg2+=) 47.Be2 (47.f3 Qg6=) 47...Qg6 (47...Be4 48.f3 h3 49.Qf2+=) 48.h3= Kf7 (48...Be4!? 49.f3 Bc2=) 49.Qf4+= Kg8 50.Qh4 Be4 51.f3 Bf5 52.Kh2 Bc2 53.b4 Qe8 54.Qf2 Qf7 55.f4 Be7 56.Bg4 Qg6?? (better is 56...Bf5+/–) 57.f5 (57.f5 Qh6 58.f6 Bf6 59.Bf6 gf6 60.Qc2 Qf4 61.Kg2+–) 1–0. Matveenko,Yury – Grishchenko,Vladimir, Voronezh Region CC Championship Semifin, 2008. (=1.Nf3 Nf6 2.b4 d6 3.Bb2 Nbd7 4.c4 e5 5.e3 e4)

7.Nc2 Ne5 8.d4 ed3 9.Bd3 Be6–/+ (9...Nd3?! 10.Qd3 Be7 11.0–0=).

7.bc5 Nc5 8.Nc3= Be7 9.f3 ef3 10.Qf3 Bg4 11.Qf2 0–0 12.Nf5 Re8=+ 13.Ne7 Re7 14.h3 Nfe4 15.Qh4= Bf5 16.Nd5 Re8 17.Qd8 Rad8 18.Nc7 Rf8 19.g4= Bg6 20.d4 Na4=+ 21.Rh2 Ng5 22.0–0–0= Rd7 23.Nb5 Re8 24.Na7 d5 25.c5 Re3 26.Ba1 Nc3 27.Bc3= Rc3 28.Kb2 Re3 29.Nc8 Rc7 30.Nd6 Rce7 31.Kc1 Ne4 32.Bb5 Nc3 33.Rdh1 Be4 34.Rg1 Nb5 35.Nb5 f5 36.gf5+= Bf5 37.h4 Bg6 38.a4 Rb3= 39.Rb2 Rb2 40.Kb2+= Re4 41.Rh1 Rf4+= 42.Kc3 Be8 43.Nd6+/– Bc6 44.a5 h5 45.Rb1 Rh4+= 46.Nb7 Rh3 47.Kd2 Ra3 48.Nd8 Bd7 49.Rb8 Bf5 50.c6 Kh7 51.c7 Ra5 52.c8Q Bc8 53.Rc8 g5 54.Rc5 Rc5? 55.dc5+– h4 56.c6 h3 57.c7 h2 58.c8Q h1Q 59.Qf5 Kh6 60.Nf7 Kg7 61.Ng5 Qh2 62.Kd3 Qg3 63.Kd4 Qg1 64.Kd5 Qh1 65.Nf3 Kg8 66.Qg6 Kh8 67.Qf6 Kh7 68.Qf7 Kh8 69.Qf8 Kh7 70.Qe7 Kh8 71.Qf8 Kh7 72.Qf7 Kh8 73.Qf8 ½–½. Machete99 (2230) – blik (2435), ICC, 2002.

6.Nd4 Ne5

7.f4 Nc6N 8.Nc6 bc6 9.Be2 d5 10.c5 Be7 11.Qa4 Bd7 12.Qa5+= 0–0 13.Na3 Ng4 14.Nc2 Nh6 15.0–0 f5 16.Be5 Bf6 17.Bc7 Qe8 18.Rab1 Nf7 19.Kh1 Kh8 20.a4 g5 21.g3 Kg7 22.b5 Nd8 23.fg5 Bg5 24.Nd4 h5 25.Qb4 h4 26.gh4 Bh4 27.Rg1 Kh6 28.Rg2 Rg8 29.Rg8 Qg8 30.Rg1 Qe8 31.Qb1 Qf8 32.Qf1 f4 33.Bf4 Kh7 34.Bh5 Qc5 35.Bg6 Kg7 36.Bf5 Kf8 1–0. Kesmaecker,Philippe (2290) – Blachier,Pierre (2135), FRA–chT France, 1999.

7.f4 Nd3 8.Bd3= ed3 9.0–0 c5 10.Nf3 Be7 11.Qb3 0–0 12.Qd3+= cb4 13.a3 d5 14.ab4 Bb4 15.Ra4 a5 16.Bf6 Qf6 17.Qd5 Rd8 18.Qe4 Bf5 19.Qb7 Rab8–/+ 20.Qa7 Be4 21.Ng5 Bd3 22.Re1 h6 23.Nf3 Qb2 24.Nc3= Bc3 25.dc3+= Be4 26.Ra5?? Bf3–+ 27.Ra2 Qc3 28.Qa5 Qa5 29.Ra5 Be4 30.Re5 f5 31.Re2 Rd1 32.Kf2 Bd3 33.c5 Be2 34.Ke2 Rh1 35.Rf5 Rb2 36.Kf3 Rh2 37.g3 Rb3 38.Rd5 Rc2 39.g4 Rcc3 40.Re5 Kf7 41.Rf5 Kg6 42.Re5 Rb1 43.f5 Kf7 44.Rd5 Re1 45.Rd7 Kf8 (45...Kf8 46.Kf4 Rc5–+) 0–1. Machete (2295) – NightmareXP (2655), ICC, 2003.

7.f4 ef3 8.gf3 Nfg4 9.Qc2 Qh4 10.Ke2 c5 11.bc5 dc5 –+.

7.f4 ef3 8.Nf3 a5 9.b5 Bg4 10.Be2+= Bf3 11.gf3 Be7 12.0–0 0–0 13.f4 Ned7 14.Bf3 Nb6 15.Bb7+/– Rb8 16.Bc6 Nc4 17.Bd4 d5 18.a3 Kh8 19.Qc2 Qd6 20.d3 Nb6 21.Qg2 Rfd8 22.Nd2 Kg8 23.Nb3+– a4 24.Nc5 Rf8 25.Kh1 Kh8 26.Rg1 Rg8 27.Qc2 Nbd7 28.Na6 Rbd8 29.Qa4 Rc8 30.Qc2 Rgf8 31.a4 Rfe8 32.Bb7 Rcd8 33.a5 Rg8 34.Nc7 Nc5 35.Qc5 Qc5 36.Bc5 Bc5 37.d4 Bd6 38.Nd5 Nd5 39.Bd5 Bf4 40.e4 Rb8 41.Rgb1 Be3 42.Ra4 Rgd8 43.a6 Rd5 44.ed5 f5 45.a7 Rf8 46.a8Q (46.a8Q Rg8 47.d6+–) 1–0. orane – Caissa, caissa.com, 2006.

7.f4 ef3 8.Nf3 Bg4 9.Be2 Bf3 10.gf3 Nfd7 11.d4 Ng6 12.Nc3 Qh4 13.Kd2+= 0–0–0 14.Qa4 Kb8 15.Qb5 Ne7 16.f4 Nf6 17.Qa5 Rc8 18.Qg5 Qh3 19.Qg3 Qd7 20.Bd3 d5=+ 21.c5 Qe6 22.b5 Ne4 23.Ne4= de4 24.Bc2 h5 25.Bb3 Qd7 26.Qg2 f5 27.Qe2 h4 28.Rag1 Nd5 29.Qc4+= c6 30.bc6 bc6 31.Rg5 Ka8 32.Rhg1 Rb8 33.Rg6 Qb7 34.Bc3 Ne7 35.Rd6 Ng8 36.Re6 Nf6 37.Rg5+/– Ng4 38.h3+– Nf6 39.Rf5 Be7 40.Rfe5 Bd8 41.Bc2 Nd7 42.Re4 Nf6 43.R4e5 Rc8 44.Qb3 Nd5 45.Qb7 Kb7 46.Rf5 Rc7 47.Bb2 Bf6 48.Bd1 Ka8 49.Bf3 Ne7 50.Rh5 Rhc8 51.e4 Ng6 52.Ke3 Nf8 53.Rf6! gf6 54.Rh4 Re7 55.Rh6 Nd7 56.h4 Rb8 57.Bc3 Kb7 58.h5 Rf8 59.Rg6 Rh8 60.e5 Rc8 61.Rg1 fe5 62.Rb1 Ka8 63.fe5 Nf6 64.Kd3 Nd5 65.Bd5 cd5 66.h6 Rg8 67.Bd2 Rh7 68.Bf4 Rg4 69.Be3 Rg3 70.Rh1 Kb7 71.Rh5 Rg6 72.a3 Ra6 73.Bc1 Re6 74.Rf5 Rg6 75.Rf6 Rf6 76.ef6 Kc6 77.Bf4 Rf7 78.Bg5 Kb5 79.Ke3 Rh7 80.Kf4 Kc4 81.Ke5 Rc7 82.Ke6 (82.Ke6 Rc8 83.f7+–) 1–0. Bonetti,Shane – Tinker, ICC, 2002.

7.f4= Bg4 8.Qc2 Nd3 9.Bd3+= ed3 10.Qd3 Be7 11.f5 d5 12.h3 Bh5 13.g4 Ng4 14.hg4+– Bg4 15.Nc3 Bh4? 16.Kf1 Qg5 17.cd5 0–0 18.Ne4 Qh5 19.Nf2 Qg5 20.Qc3 Rfc8 21.Rg1 Bf2 22.Nf3!! Qh6 23.Rg4 Qh3 24.Rg2 f6 25.Kf2 (25.Kf2 Rf8 26.Rag1 Qf5 27.Rg7 Kh8 28.R7g5 Qg5 29.Ng5 Rad8 30.Nf7 Rf7 31.Qf6 Rf6 32.Bf6#) 1–0. MrkT – elsquare, internet, 2005.

5.Nf3 Be7

6.a4 a6 7.d4 ed4 8.ed4 0–0 9.Nbd2 Re8 10.Be2 a5 11.b5 b6 12.0–0 Bb7 13.Qc2 Nf8 14.Rfe1 Ne6 15.g3 Bf8 16.Ne5?? de5–+ (16...de5 17.de5 Bb4 18.ef6 Qd2 19.Qd2 Bd2–+) 0–1. Garcia Piedra,Juan – Rodriguez Lopez,Jaime, Asturias–chT40 Primera A, 1999.

6.b5 a6 7.a4 b6 8.Be2= Bb7 9.0–0 0–0 10.d4 Re8 11.de5+= de5 12.Ne5 Ne5 13.Be5 Bd6 14.Bd6+/– Qd6 15.Qd6 cd6 16.Nd2 a5 17.Bf3 Bf3 18.Nf3 Ne4 19.Rfd1 Rac8 20.Rac1 f5 21.Nd4 g6 22.Nb3 Red8 23.Nd2 Kf7? 24.Ne4+– fe4 25.h3 Ke6 26.Kf1 Rc5 27.Rd4+– Ke5 28.Ke2 g5 29.f3 ef3 30.gf3 h6 31.Kd3 Ke6 32.e4 Rf8+/– 33.Ke3 Re5 34.Rd5 Rc8 35.Re5 de5+/– 36.Rc2 Rc7 37.Rc3 ½–½. valpa – Roussos13, playchess.de, 2002.

6.Nc3 0–0 7.Be2 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 Nbd7 7.Nc3).

6.d4 0–0 7.a3 e4 8.Nfd2 c6 9.Nc3 d5 10.Qb3 Nb6 11.h3 Be6 12.c5 Nbd7 13.Be2 b6 14.cb6 ab6 15.0–0 h6 16.Rfc1 Qb8 17.Qc2 Rc8 18.f3 ef3 19.Bf3 Nf8 20.e4 de4 21.Nce4 Nd5 22.Nc4 Bf5 23.Ne5 Ne3 24.Qe2 Nd5 25.Nc6 Qf4 26.Ne7 Ne7 27.Qd2 Qd2 28.Nd2 Rab8 29.Nc4 Be6 30.Nd6 Rc1 31.Rc1 Nd5 32.Kf2 Ng6 0–1. ferminkatcho (1705) – hamdija1948 (1825), internet, 2014.

6.d4 b6 7.Nc3 Bb7 8.Be2 ed4 9.ed4 Ne4 10.Qc2 Ndf6 11.0–0 Nc3 12.Bc3 Be4 13.Bd3 Bd3 14.Qd3 0–0 15.Rfe1 c5 16.bc5 bc5 17.Rab1 cd4 18.Nd4+– Nd7?? 19.Nc6 Qc8 20.Ne7 (20.Ne7 Kh8 21.Nc8 Rac8 22.Rb7+–; 20.Re7?! Qc6 21.Rbe1 Rac8+/–) 1–0. pierre – joshuanem, internet, 2008.

6.Be2 0–0 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 Nbd7).

6.Be2 a5 7.b5 c6 8.d4 e4 9.Nfd2 cb5 10.cb5 d5 11.Nc3 b6 12.Rc1 0–0 13.Qb3 Bb7 14.0–0 Rc8 15.Rc2 Bd6 16.Ba3 Qe7 17.Bd6 Qd6 18.Rfc1 Rfe8 19.g4 (19.Qa4 Nf8+=) 19...h6 20.h4 (20.a3 Qe6=) 20...Nh7 (better is 20...Ng4!? 21.Kf1 Ndf6–+) 21.Nf1= Ndf6 22.Ng3 g6 23.Kg2 Qd7 24.Na4 Rc2 (24...Ng4? 25.Nb6 a4 26.Qa4+– (26.Nd7?! ab3 27.ab3 Rc2 28.Rc2 Ngf6+–)) 25.Rc2 Qd6 26.Rc3 Rc8 27.Qc2 Rc3 28.Qc3 Ne8 29.f3 ef3 30.Bf3 Nhf6 31.Qb3 Ne4 32.Be4 de4 33.Nc3 Nf6 34.g5 hg5 35.hg5 Ng4 (35...Nh7 36.Qd1–/+ (36.Nge4?? Ng5 37.Kf1 Ne4 38.Ne4 Be4–+)) 36.Na4 (36.Nce4 a4 37.Qa4=) 36...Kg7 37.Qc3 (37.Nf1–/+) 37...f6 (37...Qd5 38.a3 Qg5–+ (38...Qb5?! 39.d5 Kg8 40.Qd4–+)) 38.Kh3 (38.gf6 Nf6 39.Qc1 Kf7+=) 38...Nf2 (better is 38...f5!?–/+) 39.Kg2= Ng4 40.Kh3 Nf2 (better is 40...f5!?–/+) 41.Kg2= Ng4 42.Kh3 fg5 (42...f5–/+) 43.d5?? (43.Kg4 Qd7 44.Nf5 Qf5 45.Kg3–+) 43...Nf6–+ 44.Ne4?? (better is 44.Kg2–+) 44...g4 45.Kh4 (45.Kg2 Bd5 46.Kg1 Be4 47.Qe1–+) 45...Qh2 46.Kg5 Qh6 0–1. Mikhaylov,Dimitri (1815) – Soliva Ruiz,Ramon, St Petersburg RUS, Chigorin Mem, 2013.

6.Be2 b6 7.0–0 Bb7 8.a4 0–0 9.a5 ba5 10.Ra5 Nb6 11.Qc2 c5 12.bc5 dc5 13.Ne5+/– Qc7 14.Bf3 Bf3= 15.Nf3 Bd6? 16.Bf6+– gf6 17.Nc3 Nc4 18.Ra4 Nb6 19.Ne4 Na4=+ 20.Nf6 Kh8?? 21.Qh7# (21.Qa4?! Be7 22.Qh4 Bf6 23.Qf6 Kg8+=) 1–0. revreverend – justfish30, Live Game Caissa's Web, 2004.

6.Be2 c5 7.a3 0–0 8.0–0 Re8 9.d3= b6 10.Re1 Bb7 11.Nc3 Bf8 12.Qb3 a6 13.Rad1 Qc7= 14.d4 e4 15.Nd2 cd4 16.Nd5 Nd5=+ 17.cd5 d3 18.Rc1 Qd8 19.Bg4 Nf6 20.Bf6 Qf6=+ 21.Bd7 Re5 22.Bc6= Qe7 23.Rc3 b5 24.Rec1 f5 25.Qd1 Rc8 26.Nb3 Qf7 27.Nd4 Bc6 28.dc6 Rc7 29.g3 g5 30.f3 Bg7 31.fe4 fe4 32.Qd2 Rd5 33.Rf1=+ Qg6?? 34.Qf2 h6?? 35.Kg2 Re5 36.Rcc1 Re8 37.Qa2 Kh7 38.Nf5 Qe6–+ 39.Qd2 Be5 40.Nd4 Bd4 41.ed4 d5 42.Rc5 Rd8 43.h3 Qg6 44.g4 Qg7 45.Qe3–/+ Rd6 46.Rf5 Qg8 47.Qf2 Qe6 48.Re5–/+ Qf6 49.Rf5 Qg6 50.Kf1 Kg7 51.Ke1 Rcc6 52.Kd2? Rf6–+ 53.Kc3 Rf5 54.gf5 Qf6 55.Kb3 Qd6 56.Qg2 d2 (56...d2 57.Qd2 Kf6–+; better is 56...Rc5 57.dc5 Qe5–+) 0–1. Bartle,Georg – Schampel,Arno, 18 sen. DSenEM (GrB) op, 2006.

6.Be2 c6 7.0–0 h6 8.Nc3 g5 9.d4+= g4 10.Nh4 Nf8 11.Qc2 e4 12.d5 N6h7 13.dc6 Bh4 14.c7! Qc7? 15.Nd5 Qd8 16.Qe4 Be7 17.Bh8 Ng5 18.Nf6# 1–0. orane – UmbaMumuba, caissa.com, 2006.

6.Be2 e4 7.Nd4 0–0 8.Nc3 Ne5 9.f4 Nd3 10.Bd3 ed3 11.0–0 c5 12.bc5 dc5 13.Nf3 Be6 14.Ne5 Nd7 15.Qb3 Ne5 16.fe5 b6 17.Nd5 b5 18.e4 Rb8 19.cb5 Bd5 20.ed5 Qb6 21.Qc4 Qb5 22.Qb5 Rb5 23.Bc3 Bg5 24.Rf5 f6 25.e6 Rb6 26.Rf3 c4 27.h4 Bh4 28.Rf4 Bg3 29.Rc4 Rb5 30.Rd4 Rfb8 31.Rf1 Bd6 32.a4 Rb3 33.Rc4 Kf8 34.Kf2 Ke7 35.Ke3 h5 36.Kd3 Rf8 37.Rc6 h4 38.Ra6 Rb7 39.Bd4 Bb8 40.Bc5 1–0. pumpkin – johnrbrown (2620), net–chess.com, 2014. (=1.Nf3 d6 2.b4 Nf6 3.Bb2 Nbd7 4.c4 e5 5.e3 Be7)

6.d4 ed4

7.ed4 0–0 8.Nc3 Nb6 9.Bd3= (9.d5 a5 10.ba5 Ra5 11.Bd3 Bg4 12.0–0 Rc5 13.Qe2 Bf3 14.gf3=; 9.Be2 Bg4 10.Qb3 d5 11.c5 Nc4 12.Nd5 Nb2 13.Ne7 Qe7 14.Kf1=) 9...Bg4 (9...d5 10.c5 Nc4 11.Bc1 a5 12.b5 b6 13.Qb3 Be6 14.Ng5=) 10.0–0 (10.d5 Nbd7 11.h3 Bf3 12.Qf3 Ne5 13.Qe3 c5 14.dc6=) 10...Bf3 (better is 10...d5!? 11.c5 Nc4 12.Bc4 (12.Bc1 Re8 13.h3 Bh5 14.Re1=) 12...dc4= 13.d5 a5 14.a3=) 11.Qf3+/– (< 11.gf3 a5 (11...c5 12.a3 cd4 13.Nb5 d5 14.c5=) 12.b5 Re8=+ (12...a4 13.Re1 Re8 14.d5=) 13.Qc2 d5 14.c5=) 11...c6 12.Rfe1 Qc7 (12...Re8 13.d5 Nbd7 14.dc6 bc6 15.Ne4+/– (15.Qc6?! Ne5 16.Re5 de5=); 12...d5 13.c5 Nc4 14.Bc4+/–) 13.Ne4 (13.d5 Rae8 14.Ne4+/–) 13...d5?? (better is 13...Na4 14.Nf6 Bf6+/–; 13...Ne8 14.Nd2+/–) 14.Nf6+– Bf6 15.Qf5 g6 16.Qf6 Rfe8 17.Bc3 Nd7 18.Qf3 Qd6 19.c5 Qf8 20.Re8 Re8 21.Re1 Re1 22.Be1 Qe7 23.Qe3 Qf8 24.f3 h6 25.Bg3 Kg7 26.Bd6 Qd8 27.Qe7 Qc8 28.h4 Nf8 29.Be5 Kh7 30.Qf7# 1–0. Piriyev,Maksat – Baran,Emrah, chessmoon.com, 2011.

7.ed4 0–0 8.Bd3 Re8 9.0–0 Nf8 10.h3 Ng6 11.Qc2 a6 12.Nbd2 b6 13.Rfe1 Bb7 14.d5 Nd7 15.Nd4 Bf6 16.Nf5 Bb2 17.Qb2 Qf6 18.Qf6 Nf6 19.g3 b5 20.Rac1 Re1 21.Re1 bc4 22.Bc4 Ne5 23.Bb3 g6 24.f4 Ned7 25.Nd4 Nb6 26.N2f3 Nbd5 27.a3 Kf8 28.Rc1 Re8 29.g4 Re7 30.g5 Ne4 31.f5 Ng3 32.f6 Rd7 33.Kf2 Ne4 34.Kg1 h6 35.h4 hg5 36.hg5 c5 37.Rc2 cd4 0–1. ferminkatcho (1760) – momcilo56 (1810), internet, 2014.

7.Bd4 c5 8.bc5 dc5 9.Bb2 0–0 10.Bd3 b6 11.0–0 Bb7 12.h3 Qc7 13.Qc2 h6 14.Nbd2= Rac8 15.Ne4 Rfe8 16.Nf6 Nf6 17.Bf6 Bf6=+ 18.Rad1 Bf3 19.gf3 Qc6 20.f4 Qf3 21.Kh2 Red8 22.Be2 Qb7 23.e4 Re8 24.Bd3 a6 25.e5= Bd8 26.Bh7 Kh8 27.Rd6 f6 28.e6 Bc7–/+ 29.Rd7? Re6 30.Qg6?? Bf4–+ (30...Bf4 31.Kg1 Qd7–+) 0–1. gtate (2005) – tjong (2170), net–chess.com, 2005.

7.Nd4= 0–0 8.Bd3 Ne5=+ 9.Be2 Bg4 10.Nd2? Be2 11.Qe2= Qd7 12.h3 Nc6 13.a3 Nd4 14.Bd4 c5 15.Bc3 Qe6 16.0–0 Ne4 17.Ne4+= Qe4 18.Rad1 Rad8 19.Rd5 b6 20.Rfd1+/– f5 21.bc5 bc5 22.Ba5 Rc8 23.Qd3 Qd3 24.R1d3 Rc6 25.Rb3 g6 26.Rdd3 Bd8 27.Be1 Kg7 28.Rb7 Rf7 29.Rdb3 Bb6 30.Bc3+/– Kg8 31.Rb8 Rf8 32.Rf8 Kf8 33.Bf6 Kf7 34.Bg5= Ke6 35.g4 Rc7 36.Bf4 Rd7= 37.gf5 gf5 38.Rd3 d5=+ 39.cd5 Rd5 40.Rc3 Rd1 41.Kg2 Kd5 42.Bb8 c4–/+ 43.f3 Rd3 44.e4 fe4 45.fe4 Kd4 46.Rc2 c3 47.Kf1 Rd2?? 48.Rd2= cd2 49.Ke2 Ke4 50.Kd2 ½–½. Blaesig,Volker (1855) – Zachmann,H (1660), Open96, 1996.

6.d4 e4

7.Nfd2 0–0 8.Nc3 a5 9.b5 c6 10.Nce4 Ne4 11.Ne4 cb5 12.cb5 Nb6 13.Bd3 Nd5 14.0–0 Nb4 15.Bb1 Bf5 16.a3 Nd5 17.Nf6 Bf6 18.Bf5 Nb6 19.Rc1 d5 20.Rc5 Be7 21.Rc1 Nc4 22.Qe2 Ba3 23.Ba3 Na3 24.Bh7 Kh7 25.Qd3 Kg8 26.Qa3 b6 27.Rc6 Rb8 28.Rfc1 Qg5 29.g3 Qf5 30.Qb3 Rfd8 31.Kg2 Qe4 32.f3 Qf5 33.Rc7 Rd6 34.Re7 Rf6 35.f4 Rc8 36.Rc8 Qc8 37.Qd5 Qc2 38.Kf3 Qd1 39.Ke4 Qh1 40.Ke5 Qh2 0–1. ferminkatcho (1765) – hamdija1948 (1745), internet, 2013.

7.Nfd2 0–0 8.Nc3 d5 9.cd5 Bb4 10.Qb3 Bc3 11.Bc3 Nb6 12.Be2 Nbd5 13.Bb2 b6 14.0–0 Bb7 15.Rac1 Re8 16.Nc4 Qe7 17.Ba3 Qe6 18.Ne5 c5 19.Bb2 cd4 20.Bd4 Rac8 21.h3 Qd6 22.a3 Nd7 23.Nd7 Qd7 24.Bb5 Bc6 25.Bc6 Rc6 26.Rc6 Qc6 27.Qb2 f6 28.Rc1 Qe6 29.Qb5 h5 30.a4 Re7 31.a5 Qf5 32.ab6 ab6 33.Bb6 Ne3 34.Qb3 Nd5 35.Rd1 Rd7 36.Qc4 Kh7 37.Bc5 h4 38.Rd4 Kg6 39.Re4 Nf4 40.Rf4 Rd1 41.Kh2 Qe6 42.Be3 Qc4 43.Rg4 Kf5 44.Rc4 Ke6 45.Rc5 Kf7 46.Rb5 Kg6 47.Rb6 1–0. ferminkatcho (1715) – lena27 (1675), internet, 2013.

7.Nfd2 0–0 8.Nc3 Re8 9.Nce4 Ne4 10.Ne4 Nf8 11.a3 Bh4 12.Ng3 Qg5 13.Be2 Ng6 14.0–0 c6 15.Bf3 Qh6 16.b5 Bd7 17.a4 Bg5 18.Ba3 Nh4 19.Bg4 f5 20.Bh3 Rad8 21.Qh5 Qf6 22.bc6 Bc6 23.d5 Bd7 24.Rab1 Bc8 25.Bb2 Qe7 26.Bd4 g6 27.Qd1 Bf6 28.Ba7 Be5 29.Bd4 Qf6 30.a5 f4 31.ef4 Qf4 32.Be5 Re5 33.Bc8 Rc8 34.Rb7 Rg5 35.a6 Nf5 36.a7 Ng3 37.hg3 Qf8 38.Qa4 Ra8 39.Qd7 Rh5 40.Qe6 Kh8 41.c5 Re5 42.Qd6 Qd6 43.cd6 Rd5 0–1. ferminkatcho (1770) – salcifufuu (1860), internet, 2013.

7.Nfd2 0–0 8.Nc3 Re8 9.Nce4 Ne4 10.Ne4 Bh4 11.Ng3 Nf6 12.Be2 Ne4 13.d5 Qg5 14.Bf3 Ng3 15.hg3 Bg3 16.fg3 Qe3 17.Qe2 Qe2 18.Be2 Bg4 19.0–0–0 Re2 20.Rd2 Rae8 21.Rf1 Rd2 22.Kd2 Re2 23.Kc3 Rg2 24.Re1 Re2 25.Re2 Be2 26.Kd4 f5 27.a4 g5 28.c5 h5 29.cd6 cd6 30.b5 h4 31.gh4 gh4 32.Ke3 Bd1 33.a5 h3 34.Kf2 Bf3 35.Kg3 Bd5 36.Kh3 f4 37.Kg4 f3 38.Kg3 Kf7 39.a6 ba6 40.ba6 Ke6 41.Bd4 Bc6 42.Ba7 Ke5 43.Bb8 Ke6 44.Kf2 Be4 45.Ba7 Kf5 46.Be3 Ba8 47.a7 Ke4 48.Bb6 d5 49.Bd8 d4 50.Bg5 d3 51.Bd2 Kd4 52.Kf1 Kc4 53.Ke1 Kb3 54.Bg5 Kc2 55.Bf4 Be4 56.Bg5 Kc3 57.Be3 Kc2 58.Bf4 Kc3 59.Bd2 Kd4 60.Bf4 Kc5 61.Be3 Kb5 62.Kd2 Ka6 63.Bf2 Kb5 64.Bd4 Kc4 65.Bf2 Kb3 66.Bd4 Kc4 67.Bf2 Ba8 68.Be3 Be4 69.Bf2 ½–½. orangutandu – stoula, internet, 2013.

7.Nfd2 Nb6 8.Qc2 Bg4 9.Ne4+/– d5 10.Nf6 Bf6 11.c5 Nc4 12.Bc4+– dc4 13.Qc4 Qd7 14.b5 Qe6 15.Qe6 Be6 16.Nd2 0–0 17.0–0 Bd7 18.a4 a6 19.b6 cb6 20.cb6 Rac8 21.Rfc1 Rc1 22.Bc1 Bd8 23.a5 Re8 24.e4 Bg5 25.e5 Bd2 26.Bd2 Bb5 27.f4 f6 28.g4 h6 29.Re1 Re6 30.f5 Rc6 31.Rc1 Rc1 32.Bc1 Kf7 33.e6 Ke7 34.Ba3 Kd8 35.Bf8 Ke8 36.Bg7 Ke7 37.Bh6 (37.Bh6 Be2 38.h3+–) 1–0. Suess,Stefan – Hoge, corr, 1985.

7.Nfd2 c6 8.a3 d5 9.Nc3 0–0 10.Be2 Bd6 11.0–0 Qe7 12.cd5 cd5 13.Qb3 Nb6 14.a4 Be6 15.a5 Nbd7 16.b5 b6 17.a6 Rac8 18.Rac1 h5 19.Rc2 Ng4 20.h3 Ngf6 21.Rfc1 g5 22.Na4 g4 23.Rc8 Rc8 24.Rc8 Kg7 25.hg4 hg4 26.Qd1 g3 27.f3 ef3 28.Bf3 Nf8 29.Rc2 Ng6 30.Nf1 Nh4 31.Qe2 Nf3 32.gf3 Nh5 33.Bc1 Qh4 34.e4 Bh3 35.Nb6 g2 36.e5 gf1Q 37.Qf1 Bf1 38.Kf1 Ng3 39.Kg2 Bb4 40.Nd5 Be1 41.f4 Nf5 42.Rc3 Qf2 43.Kh3 Nh6 44.Nf6 Qf1 45.Kh2 Qf2 46.Kh3 Qf1 47.Kh2 Ng4 48.Ng4 Qe2 49.Kh3 Qf1 50.Kh2 Qe2 51.Kh3 Qf1 52.Kh2 ½–½. ognos – cidam, internet, 2014.

7.Nfd2 c6 8.Nc3 d5 9.a3 a6 10.Be2 b5 11.cd5 cd5 12.0–0 Nb6 13.f3 ef3 14.Bf3 Nc4 15.Qc2 Ne3 16.Qd3 Nf1 17.Rf1 0–0 18.Nb3 Bg4 19.Nc5 Bc5 20.dc5 Be6 21.Ne2 Rc8 22.Nd4 Kh8 23.h3 Qd7 24.Re1 Rfe8 25.Bd1 Ne4 26.Bc2 Bf5 27.Qf3 Bg6 28.Bc1 h6 29.Bf4 Ng5 30.Re8 Re8 31.Qd1 Bc2 32.Qc2 Ne4 33.c6 Qe7 34.c7 Rc8 35.Qc6 Qh4 36.Qc1 Qf2 37.Kh1 1–0. ognos – prometehus120, internet, 2014.

7.Nfd2 c6 8.Nc3 d5 9.Qb3 Nb6 10.c5 Nbd7 11.h3 0–0 12.Be2 b6 13.0–0 a5 14.a3 b5 15.f3 ef3 16.Bf3 a4 17.Qc2 h6 18.Rae1 Nh7 19.e4 de4 20.Nde4 Ra6 21.d5 cd5 22.Nd5 Bg5 23.Ng5 Qg5 24.Nc7 Rg6 25.Nb5 Ndf6 26.Re5 Qg3 27.Kh1 Ng5 28.Qf2 Nf3 29.Qf3 Qf3 30.Rf3 Bb7 31.Rf2 Ne4 32.Re4 Be4 33.Nd6 Bd5 34.Nf5 Kh7 35.Ne7 Rg5 36.Nd5 Rd5 37.Rc2 Rc8 38.Kg1 Kg6 39.Kf2 f6 40.g4 Kf7 41.Kf3 Ke6 42.Re2 Kd7 43.Ke4 Re8 44.Kd5 Re2 45.c6 Kc7 46.b5 Rb2 0–1. ferminkatcho (1750) – hamdija1948 (1880), internet, 2013.

7.Nfd2 c6 8.Nc3 d5 9.b5 Nb6 10.Be2 Be6 11.c5 Nc8 12.a4 Bd7 13.0–0 0–0 14.Qb3 Qc7= 15.f3 Be6 16.fe4 Ne4 17.Nce4 de4 18.Bc4 Bc4 19.Qc4 Bg5 20.Qb3 Qe7 21.Rf5+– Bf6 22.Raf1 Re8 23.R5f4 Qe6 24.Re4 Qd7 25.bc6 bc6 26.Qb7 Nb6+/– 27.Qd7 Nd7 28.Re8 Re8 29.Nc4 Bg5 30.Rf3 Nf6 31.Ne5 Re6 32.Bc1 a6 33.Rf2 g6 34.Rb2 Nd5 35.Kf2 f6 36.Nc4 Kf7 37.Rb6 (37.Rb6 Re7 38.Rc6+–) 1–0. Kilpatrick,Robert – Hall,F, corr, 1981.

7.Nfd2 d5 8.cd5 Bb4 9.Qb3 Bd2 10.Nd2 0–0 11.Rc1 Nb6=+ 12.Bc4 Nc4 13.Qc4 Nd5 14.Ne4 c6 15.0–0 Re8 16.Ng3 Be6=+ 17.Qc5 Qb6 18.Qb6 Nb6 19.Ra1 Nc4 20.Rfb1 f5 21.Nh5 Nb2 22.Rb2= b6 23.a4 Bc4 24.Rb4 b5 25.ab5 cb5 26.Ra6 Kf7 27.h4 h6 28.Nf4 Re7 29.Ng6 Rc7 30.Ne5 Kf8 31.Kh2+/– Rac8 32.Kg3 Bf1 33.Ra1 Bc4 34.Kf4 Bd5 35.f3 Rb7 36.Kf5 Kg8 37.Ra5 Rf8 38.Kg4 h5 39.Kh5 g6 40.Kg4 Be6 41.Kg3 1–0. Cerny,Lumir – Cominetti,Marco, Open Teplice CZE, 2006.

5.Nf3 g6

6.Nc3 c6 7.Be2 Bg7 8.Qc2 0–0 9.h4 h5 10.Ng5 Nh7 (better is 10...Qb6!?=) 11.Nh7+/– Kh7 12.Bh5 f5 13.Be2 e4 14.h5 g5 15.0–0–0 Qb6 16.a3 Ne5 17.d4 Nf7 18.Na4 Qc7 19.g4! Nh6 (19...fg4 20.Qe4 Double attack (20.Qe4 Deflection; 20.Qe4 Decoy)) 20.gf5 Bf5 21.Rdg1 g4 22.Nc3 Rae8 23.Qd1 Qf7 24.Rh2 a5 25.b5 Rb8 26.b6 c5 27.Nb5 Qf6 28.Qc2 Qd8 29.Nc7 Qg5 30.d5 Nf7 31.Bg4! Kh8 (31...Bg4 32.Bg7 Decoy) 32.Rhg2 Bb2 33.Qb2 Ne5 34.Bf5 Qf5 35.Ne6 Rg8 36.Nf4 Kh7 37.Qc2 Nf3 38.Rg8 Rg8 39.Rg8 Kg8 40.Qa4 Qe5 41.Qe8 (better is 41.Kc2 Ne1 42.Kb1+–) 41...Qe8–+ 0–1. combijack (1765) – jazzas (1700), gameknot.com, 2010.

6.d4 Qe7 7.Be2 Bg7 8.0–0 0–0 9.Nc3 e4 10.Nd2 Re8 11.a3 Nf8 12.Rc1 c6 13.b5 Bd7 14.Qb3 a6 15.b6 Rac8 16.Rfe1 Bf5 17.Nf1 Be6 18.Ng3 d5 19.a4 dc4= 20.Bc4 Bc4 21.Qc4 N8d7 22.a5 Bf8 23.Qa2 Qb4 24.Red1 Rcd8 25.d5+/– Nd5 26.Nd5 cd5 27.Rd4 Qd6 28.Qd5 Qd5 29.Rd5 Be7 30.Ne4 f5 31.Ng3 Nb8 32.Rd8 Bd8 33.Ne2 Nc6 34.Bc3 Be7 35.h3 Bd6 36.Nd4 Ne7 37.g4 Rc8 38.gf5 gf5 39.Ne2 Rc5 40.Rd1 Rd5 41.Rd4 Kf7 42.Kg2 Rd4 43.Nd4 Bc5 44.Kf3 Nd5 45.Bd2 Bd4 46.ed4 Ke6 47.Ke2 Ne7 48.Ke3 Kd5 49.Kd3 Nc6 50.Bc3 Ne7 51.f3 Ng6 ½–½. Schuelert,Peter – Kahl,Karl_Heinz, BdF, 1998.

6.d4 Bg7

7.Qc2N ed4 8.Nd4 0–0 9.Be2 Re8 10.0–0 Ne4 11.Nc3 Nc3 12.Bc3 Nf6 13.Nb3 Ne4 ½–½. Lorenc,Tomas (2175) – Vodicka,Vlastimil (2330), CZE–chTV, 2002.

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

7.Be2 e4 8.Nfd2 0–0 9.Nc3+= Re8 10.a4 b5? 11.ab5+– Nb6 12.0–0 Bb7 13.Qb3 d5 14.c5 Nc4 15.Nc4 dc4 16.Bc4 Qe7 17.Ra5 Ng4 18.h3 Nf6 19.Rfa1 Bc8 20.Ra7 Ra7 21.Ra7 Bh3 22.gh3 Nh5 23.Ne4! Qe4 24.Bf7 Kh8 25.Be8 Qb1 26.Kh2 Qf1 27.Qc2 (27.Qc2 Nf4 28.ef4+–; 27.Rc7?? Qf2 28.Kh1 Ng3#) 1–0. guest756 – MontanaSky, ICC, 2003.

6.Be2 Bg7

7.0–0 0–0 8.h3 e4 9.Ne1 Re8 10.d3 ed3 11.Bd3 Ne5 12.Nf3 Nd3 13.Qd3 Bf5 14.Qb3 b6 15.Nd4 Be4 16.Nd2 Bb7 17.b5 a5 18.a4 Qd7 19.Rac1 Qe7 20.Qc2 Kh8 21.Ne2 Rad8 22.Rfd1 Nd7 23.Bg7 Kg7 24.Nf4 Nc5 25.Nd5 Bd5 26.cd5 Qh4 27.Qc4 Qh5 28.Qd4 Kg8 29.f3 Rd7 30.e4 Rde7 31.Rc3 f5 32.Re3 fe4 33.Rde1 Re5 34.fe4 ½–½. Ruhle – Senft, 1996.

7.a3 0–0 8.d3 c6 9.0–0 a6 10.Nbd2 Re8 11.e4 h6 12.Qb3 b6 13.Rac1 Bb7 14.Rfe1 c5 15.a4 a5 16.ba5 Rb8? (better is 16...Ra5 17.Bc3 Ra7=) 17.ab6+– Qb6 18.Qb6 Nb6 19.a5 Na4 20.Ba1 h5 (20...Bc6 21.Bd1+/–) 21.Rb1 Bh6 22.Rb5 Bd2 23.Nd2 Bc6 24.Rb8 Rb8 25.Rb1 Rb1 26.Nb1 Ng4 (26...Ne8 27.Nc3 Nc3 28.Bc3+–) 27.Bg4 (better is 27.Na3!? f5 28.ef5 gf5 29.Nb5+–) 27...hg4 28.Nc3 Nc3 29.Bc3 Kf8 30.a6 Ke8 31.Ba5 Kd7 32.Kf1 Kc8 33.Ke2 Kb8 34.Bb6 Ba8 35.f3 Kc8 36.fg4 Kd7 37.h4 Kc6 38.Ba5 f6 39.h5 gh5 40.gh5 Kd7 41.h6 Ke7 42.h7 (42.h7 d5 43.ed5 Bd5 44.cd5 Ke8 45.h8Q Kf7 46.Qh7 Kf8 47.a7 c4 48.a8Q) 1–0. Fournier,Frederic – cid007, Active, 2007.

7.d3 0–0 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.d3 Nbd7).

7.d4 ed4 8.Bd4 0–0 9.0–0 b6 10.b5 Bb7 11.Nc3 Re8 12.Qd2 Ne4 13.Ne4+= Re4 14.Bg7 Kg7 15.Nd4 Nf6 16.Bf3+– Rd4 17.Qd4 Bf3 18.gf3 c5 19.Qf4 Qe7 20.Rad1 Nh5 21.Qd6 Qg5 22.Kh1 Qh4 23.Qc6 Rf8 24.Qe4 Qh3 25.Qg4 (25…Qg4 26.fg4+–) 1–0. Trkn – guest6, ICC, 2004.

7.d4 e4 8.Nfd2 0–0 9.Nc3 Re8 10.a4 h5N 11.0–0+= Nf8 12.a5 Bf5 13.b5 a6 14.ba6 ba6+= 15.Nd5 N8h7 16.Ra3 h4 17.Rb3 Nd5 18.cd5 Qg5 19.Kh1 Nf6= 20.Bc4 h3 21.g3 Bg4=+ 22.Qc1 Qh5 23.Rb7 Nd5 24.Bd5 Qd5–/+ 25.Rc7 Qa5–+ 26.Ba3 Bf8 27.f3 ef3 28.e4 Bh6 29.Qc4 d5 (29...d5 30.Bb4 dc4 (< 30...Bd2 31.Ba5 dc4 32.Bd2–+) 31.Ba5 Bd2 32.Bd2 Re4 33.Rc4 Rae8–+; 29...Qa3?? 30.Qf7 Kh8 31.Qh7#; 29...Bd2?? 30.Qf7 Kh8 31.Qg7#) 0–1. Feldman,Yevgeny – Ross,Phillip E (2135), Manhattan CC–ch, 1999.

7.d4 Qe7 8.0–0 0–0 9.Nc3 c6 10.Qb3 Re8 11.Rad1 e4 12.Nd2 Nf8 13.a4 h5 14.a5 a6 15.Na4 Bf5 16.Nb6 Rad8 17.d5 N8d7 18.dc6 bc6 19.f3 Nb6 20.ab6+= Ra8 21.fe4+/– Ne4 22.Bg7 Kg7 23.Ne4 Be4 24.Qc3 Kg8 25.Bf3 d5 26.Rd4 f5 27.Be4+/– de4 28.c5 Red8 29.Rfd1 Rd4 30.Rd4 g5 31.Rd6 Kh7 32.Rc6 f4 33.Rc7 (33.Rc7 Qc7 34.bc7+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

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    Available lines:
  • 1.b4 (4 players, 1 day/move)
  • 1.b4 (4 players, 10 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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