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TESTG700 Release 2017-11-18
Send your 1.b4 games to me, please. Thank you! /Marek
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(c) Marek Trokenheim

1.b4 e5 2.Bb2 d6 3.c4 Nf6

(...)

4.a3 Bd7 5.Qc2 A) 5...Nc6 6.e4 (6.e3 Be7 7.b5 Na5 8.d4 ed4 9.Bd4=; 6.b5 Nb8 7.d4 Qe7 8.e3 ed4 9.Bd4=; 6.Nf3 a6 7.e4 Be7 8.Be2 0–0 9.0–0=) 6...Be7 7.Nf3 0–0 8.Be2 Bg4 9.0–0=; B) 5...Be7 6.e4 (6.Nf3 a5 7.b5 Bg4 8.d4 ed4 9.Bd4=) 6...0–0 7.Nf3 Re8 8.Be2 a5 9.b5=; C) 5...a5 6.b5 (6.Nf3 ab4 7.ab4 Ra1 8.Ba1 Be7 9.e4=) 6...Be7 7.e4 c6 8.d4 ed4 9.Bd4=.

4.a3 Bd7 5.Nc3 A) 5...a5 6.b5 Be6 7.e4 Nbd7 8.Nf3 Nc5 9.d4=; B) 5...Be7 6.e3 (6.e4 c5 7.Nf3 Nc6 8.bc5 dc5 9.Be2+=; 6.Nf3 a5 7.b5 Bg4 8.e4 Nbd7 9.Be2=; 6.d4 ed4 7.Qd4 Be6 8.e4 Nc6 9.Qe3+=) 6...0–0 7.Be2 Re8 8.Nf3 a5 9.b5=; C) 5...Nc6 6.e3 (6.b5 Na5 7.e3 a6 8.ba6 Ra6 9.Nf3=; 6.Nf3 Be7 7.e3 Bg4 8.h3 Be6 9.Be2=; 6.e4 Be7 7.Nf3 0–0 8.Be2 Nd4 9.0–0=; 6.Nd5 Be6 7.Nf6 Qf6 8.e3 0–0–0 9.d4=) 6...Be7 7.Nf3 Bg4 8.h3 Be6 9.d4=; D) 5...Bf5 6.Nf3 (6.e3 Be7 7.Qf3 Qc8 8.Be2 a5 9.b5=; 6.d3 a5 7.b5 Be7 8.e4 Bg6 9.Be2=) 6...Be7 7.d4 Nbd7 8.de5 de5 9.e4=; E) 5...Bg4 6.d4 (6.Nf3 a5 7.d4 ab4 8.ab4 Ra1 9.Ba1=; 6.h3 Be6 7.e4 a5 8.Nf3 ab4 9.ab4=) 6...ed4 7.Qd4 Be7 8.Nd5 Be6 9.Qd3=.

4.a3 Bd7 5.e3 a5 6.b5 (6.d4 ed4 7.ed4 ab4 8.ab4 Ra1 9.Ba1+=) 6...Be7 7.d4 e4 8.Nc3 c6 9.d5=.

4.a3 Bd7 5.Nf3 A) 5...a5 6.b5 Be7 7.Nc3 0–0 8.e4 Be6 9.Be2=; B) 5...Be7 6.Nc3 (6.d4 e4 7.Nfd2 a5 8.b5 c6 9.e3=) 6...a5 7.b5 Bg4 8.h3 Be6 9.e4=; C) 5...Bf5 6.e3 (6.d4 e4 7.Qc2 g6 8.Nh4 Bd7 9.Nc3=; 6.d3 a5 7.e4 Be6 8.Nbd2 Na6 9.Qb3=; 6.Nc3 Be7 7.d4 Nbd7 8.de5 de5 9.e4=) 6...Be7 7.Be2 0–0 8.0–0 Nc6 9.d4=; D) 5...e4 6.Nd4 Be7 7.d3 ed3 8.Qd3 0–0 9.e3=.

4.a3 Bg4 5.Qc2 Be7 6.d3 0–0 7.Nd2 Bf5 8.g3 d5 9.c5 Nc6 10.e3 Re8 11.Ngf3 d4 12.e4 Bg6 13.Bg2 Ng4 14.h3 Nh6 15.0–0 f5? 16.b5+– fe4 17.Ne4 Na5 18.Ne5 Bf7 19.Nf7 Nf7 20.Qa4 c6 21.Qd4 Qd4+/– 22.Bd4 Nb3 23.Bc3 Na1 24.Ba1 cb5 25.d4 Rad8 26.Bc3 b6 27.Rb1 a6 28.cb6 Ba3 29.Nc5 Rc8 30.b7 Rcd8? 31.Na6 Bd6 32.Ba5 Bf8 33.Bd8 Rd8 34.b8Q Rb8 35.Nb8 b4 36.Nc6 Nd6 37.Bd5 Kh8 38.Rb4 Nf5 39.Rb8 (39…g6 40.Rf8 Kg7 41.Rf7 Kh8 42.g4+–) 1–0. nbh999 (1950) – David King (1775), ChessWorld.net, 2003.

4.a3 Ng8 5.e3 f5 6.Nf3 Nf6 7.d3 g6 8.Be2 Bg7 9.Nbd2 0–0 10.0–0 Nc6 11.h3 Nb8 12.e4 f4 (12...Nc6!?=) 13.c5+= dc5 (13...Qe7 14.cd6 cd6 15.d4+/–) 14.bc5 (14.Qb3 Kh8 15.Ne5 cb4 16.Nf7 Rf7 17.Qf7 ba3 18.Ra3 Nc6+/–) 14...Nbd7 15.d4 (15.Be5?! Ne5 (worse is 15...Nc5 16.Qc2 Ne6 17.d4+/–) 16.Ne5 Ne4 17.de4 Be5=) 15...b6? (15...ed4!? 16.Bd4 Qe7+/–) 16.cb6 (16.c6!? Nb8 17.Qb3 Kh8 18.Ne5 Qd6+–) 16...ab6 17.de5 Ne5?? (better is 17...Ne8+–) 18.Ne5 Ne4 (18...Be6+–) 19.Ne4 Be5 (19...Qd1 20.Bc4 Kh8 21.Rad1+–) 20.Be5 (better is 20.Bc4 Kg7 21.Be5 Kh6 22.Bf4 Kg7 23.Be5 Kh6 24.Qc1 g5+–) 20...Qe7 21.Bc4 Rf7 (21...Be6 22.Qb3 Bc4 23.Qc4 Rf7 24.Nf6 Kg7+–) 22.Bf7 Qf7 23.Ng5 Qf8 24.Qb3 Be6 25.Qe6 (25.Qe6 Qf7 26.Qf7) 1–0. Fournier,Frederic (1955) – angelenfermo (2045), Active (1/0), 2004.

4.a4 a5 5.b5 Nbd7 6.e3 b6 7.Nc3 Bb7 8.Nf3 Nc5 9.Qc2 g6 10.d4 ed4 11.Nd4 Bg7 12.f3 0–0 13.0–0–0?! Rc8 14.g4?? Ng4 15.Qe2 Ne5?!–/+ (15...Re8–+) 16.Bh3 Rb8 17.e4 c6?! (17...Qh4 18.Bg2 Ned3!) 18.f4 Qh4 19.fe5 Qh3 20.bc6 Be5? (20...de5–+) 21.cb7 Bd4 22.Rd4 Nb3 23.Kb1 Nd4 24.Qd2 Ne6 25.Qd6 Rb7 26.Nd5 Qd3 27.Ka1 Nd4?? (27...Qc4–/+) 28.Nf6+– Kg7 29.Bd4 Rc8 30.Nd7? (30.Ng4!+–) 30...Kh6?? (30...Kg8=) 31.Qf4 1–0. Fehr – Osieja, 1997.

4.Qb3 Be6 5.Nf3 Nc6 (5...a5 6.Ng5+=) 6.d4 (6.e3 e4 7.Ng5 Bf5+=) 6...ed4 (6...d5 7.c5 e4 8.Nfd2+=) 7.Nd4= Be7 (7...Nd4 8.Bd4 Be7 9.e3+=) 8.Ne6 fe6 9.b5 Na5 10.Qc3 c6 11.Nd2 0–0 (11...cb5 12.cb5 Rc8 13.Qe3=) 12.e4 (12.Qh3 e5=) 12...e5 13.Rd1 (13.Be2 Kh8+=) 13...b6 (13...cb5!? 14.cb5 Qb6=) 14.Qh3+= Qd7 (14...Qc7 15.Bd3+=) 15.Qd7+/– Nd7 16.Nb3 (16.Be2 a6+=) 16...Nb3+= 17.ab3 Nc5 18.bc6 Rac8 (18...a5 19.Bd3+=) 19.b4 Ne4 20.f3 Nf6? (better is 20...Bh4!? 21.g3 Rf3+=) 21.b5+/– Rc7 22.Kd2 Nh5 (22...Re8 23.Bd3+–) 23.c5 (better is 23.Ke3+/–) 23...dc5? (better is 23...bc5 24.Bc4 Kh8+/–) 24.Bc4+– Kh8 25.Be5 Rcc8 26.Kc2 Nf6 (26...Bg5 27.Rd7+–) 27.Be6 (27.Rhe1 Ne8+–) 27...Ra8 28.Rhe1 (28.c7 h6+–) 28...Rfe8 (28...Ng8 29.c7+–) 29.c7 h6 (29...c4 30.Bf6 Bf6 31.Bd5+– (31.Bc4?! Re1 32.Re1 Rc8+/–)) 30.Bg3 g5 (30...Bf8 31.Bd5 Rac8 32.Bb7 Re1 33.Re1 (33.Be1?! Rc7 34.Bc6 Kg8=) 33...Rc7 34.Bc7+–) 31.c8Q Rac8 32.Bc8 Bf8 (32...Kg7 33.Bd7 Nd7 34.Rd7+–) 33.Re8 Ne8 34.Rd8 (34.Rd8 Nf6 35.Rf8 Kg7 36.Rd8+–) 1–0. orane (2195) – ice, Live Game Caissa's Web, 2004.

4.Qb3 Be7 5.e3 =+.

4.Qb3 Bf5 5.d4 (5.Nf3 Be7+=) 5...ed4 6.Bd4 Nc6 7.Bb2 (7.Nf3 Be7+=) 7...d5 (7...Be7 8.Nf3–/+) 8.c5 (8.a3 d4+=) 8...a5 9.a3 Be7 (9...ab4 10.ab4 Ra1 11.Ba1–/+) 10.Nf3 (10.b5 Nb8+=) 10...0–0 (10...ab4 11.ab4 Ra1 12.Ba1+=) 11.e3+= h6 (11...Ne4 12.Nbd2+=) 12.Bb5= ab4 13.ab4 Ra1 14.Ba1 Ne4 (14...Qc8 15.0–0=) 15.0–0 Ng5 (15...Be6 16.Nbd2+=) 16.Nbd2 Bf6 17.Bf6 (17.Ng5 Bg5 18.Rd1 Be6+=) 17...Qf6 18.Ng5 hg5 19.Nf3 (19.Rd1 Rd8+=) 19...Be4 20.Be2 Ra8 (20...Rd8 21.b5 g4 22.Nd2+=) 21.Nd2 Bf5 22.b5 (22.Qd5? Rd8 23.Qa2 Nb4–+) 22...Ne7 23.Nf3 c6 (23...Be4 24.Rd1+=) 24.Nd4 Be4 25.Rd1 Nf5 26.Nf5 Bf5 27.Rc1 Be4 ˝–˝. Behrmann,Klaus – Beutel,Heinrich, compuserve, 1997.

4.b5 a5 5.a4 c5 6.Nc3 b6 (6...Be7 7.e3=) 7.d3 Bb7 (7...Be7 8.Nf3=) 8.Nf3 (8.e4 Be7=) 8...Nh5 (8...Be7 9.e4=) 9.e3+= g6 10.Be2 Ng7 (10...Nf6 11.0–0+/–) 11.0–0+– Nd7 12.e4 ( 12.Nd2!?+/–) 12...Nf6 (12...Ne6 13.Qd2+=) 13.Nd5 Bd5 (13...Ne6 14.Qc2+=) 14.ed5 (14.cd5 Nfh5+/–) 14...Be7 15.Ng5 Ngh5 16.Ne4 Nf4 17.Nf6 Bf6+= 18.Bf3 h5 19.Be4 Qd7 20.Bc1 g5 21.Be3 h4 22.f3 0–0–0 23.Bf4?? gf4?? 24.h3 Rdg8 25.Rf2? Qh3 26.Kf1 Qg3 27.Ke2 h3 28.gh3 Rh3 29.Qc2?? Qh4 30.Raf1 Qh5 31.Kd2? Bh4 32.Re2 Bg3 33.Kc3?? Rh8 34.Rd1? Qg5 35.Rdd2? Rh2 36.Rh2+– Bh2 37.Rh2 Rh2 38.Qh2 Kd7 39.Qh3 Ke7 40.Bf5?? Qg3? 41.Qg4?? Qe1= 42.Kb3 Qb1 43.Kc3 Qa1 44.Kd2+= Qb2 45.Ke1 Qc1 46.Kf2 Qe3? 47.Kg2+– Qe1 (48.Qg5 Ke8+–; 47...Qe2 48.Kh3+–). stoker – chessdv8, Live Game Caissa's Web, 2004.

4.b5 c5 5.Nc3 Be7 6.e3 (6.e4 Nbd7+=) 6...0–0 7.Be2 Bf5 8.d3 a6 9.a4 Nbd7 (9...ab5 10.ab5 Ra1 11.Qa1=) 10.Bf3= Rb8 (10...ab5 11.ab5 Ra1 12.Ba1=) 11.g4 (11.Nge2 a5=) 11...Be6 12.g5 Ne8 13.h4 Nc7 (13...Qa5 14.Qd2=) 14.Nd5 (14.Nge2!?=) 14...Bd5+= 15.Bd5 Nd5 16.cd5 ab5 (16...Qa5 17.Qd2 Qb6 18.ba6 ba6 19.Bc3–/+) 17.ab5 Ra8 18.e4 (18.Ra8 Qa8 19.Bc3 Qa2–/+) 18...Qb6 19.Qb3 Ra1 20.Ba1 Ra8 (20...f5 21.gf6 Rf6 22.Ne2+=) 21.Bc3= Nf8 (21...f5 22.gf6 Bf6 23.Nf3=) 22.Ne2 Ng6 (22...f6 23.gf6 Bf6 24.h5=) 23.Qb1 (23.Qb2 Ra7=) 23...Ra4 (23...Bd8 24.Qb2=) 24.Bd2 (24.Qb2 f5 25.h5 Nf8=) 24...Nf8 25.Ng3 (25.h5 Qa7 26.Nc1 Bd8=) 25...Bd8 (25...Qa7 26.0–0+=) 26.Nf5 Qa7 (26...Ng6 27.h5 Ne7 28.Ne7 Be7 29.g6=) 27.Ke2 (27.Nd6? Ra1 28.Ke2 Rb1 29.Rb1 Nd7–+) 27...Qb8 (27...Ba5 28.Nd6 Bd2 29.Kd2=) 28.Qb3 (28.h5 Ra7=) 28...Ra8 29.f4 (29.h5 Ba5=) 29...Nd7 (29...Ng6 30.Qb2=) 30.Qb2 (30.h5 Ba5=) 30...Nb6 (30...Ba5 31.h5=) 31.fe5 Na4 (31...de5 32.h5+=) 32.Qb3 de5 33.d6 Nb6 (33...Ba5!?+/–) 34.Rf1 Do you see the mate threat? 34...c4 35.dc4 Ra4 36.c5 (36.Qg3 Nd7 37.Nh6 Kh8 38.Nf7 Kg8+–) 36...Re4 37.Kd1 (37.Kd3 Nc4 38.Bc3 Rg4+–) 37...Nc4 38.Ne3 (38.Qf3 Nb2 39.Kc1 Rc4 40.Kb2+–) 38...Qc8 39.Nf5?? (39.Nc4 Qg4 40.Qf3 Qf3 41.Rf3 Rc4 42.Ra3+–) 39...Qc5–+ (39...Nd2?? 40.Nh6 Kh8 41.Nf7 Kg8 42.Nh6 Kh8 43.Rf8) 40.Rf3 (40.b6 Qd5 (40...Nb6?? 41.Nh6 Kh8 42.Nf7 Kg8 43.Nh6 Kh8 44.Qg8; 40...Bb6?! 41.h5–+) 41.Rf2 Kh8–+) 40...Nd2?? (better is 40...Qg1 41.Kc2 Qg2–+) 41.Nh6! 1–0. Hoelldorfer,August – Gahn, Bayer Sen–EinzelM, 1992.

4.b5 Be6 5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be6 5.b5).

4.Nc3 a5 5.a3 Be6 6.e3 Nbd7 7.d4 ed4 8.ed4 d5 9.c5 c6 (9...Be7 10.Bd3=) 10.Bd3 Be7 11.Nge2 0–0 12.f3 (12.b5 cb5 13.Nb5 Qc8+=) 12...Nh5 (12...ab4 13.ab4 Ra1 14.Qa1=) 13.Qc2 f5 14.b5 Bh4 15.g3 Bg5 16.b6 Qe7 17.f4 Bh6 18.0–0 g6 19.Rae1 Nhf6 20.Nd1 Ne4 21.Kg2 Ndf6 22.Ng1 Bg7 23.Nf3 Ng4 24.h3 Ngf6 25.Ng5 (25.Ne5 Rfe8+=) 25...h6 (25...Ng5!? 26.fg5 Ne4=) 26.Ne6+= (worse is 26.Ne4 de4 27.Be2 Nd5+=) 26...Qe6 27.Nf2 Nh5? (better is 27...Rfe8=) 28.Ne4+– (28.Be4?! de4 29.Kh2 Nf6+=) 28...fe4 29.Re4! de4 30.Bc4 Rfe8 (30...Qd5+–) 31.f5 gf5 32.Rf5 (32.Qb3!? Kf7 33.g4 a4+–) 32...Nf6 33.Be6 Re6 34.Qb3 Nd5? (34...Rae8+–) 35.Rd5 cd5 36.Qd5 Rae8 37.Qb7 e3 38.Qd5 e2 39.Bc3 Kh8 (39...Kf8 40.Be1 Ke7 41.c6+–) 40.b7 (better is 40.Be1!? Re4 41.c6 Rd4 42.Qa5 Rde4+–) 40...e1Q 41.Be1 Re1 42.c6 Rf8 43.h4 Rd1 (43...Rc1+–) 44.c7 Rd4 45.Qd4!! Bd4 46.b8Q (46.b8Q Rb8 47.cb8Q (47.cb8N?! a4+/–; 47.cb8B?! a4+/–) 47...Kh7 48.Qc7 Bg7 49.Qa5+–) 1–0. De Visser,Arno – Levendig, 1979.

4.c5 Be7 5.cd6 cd6 6.a3 0–0 7.d4 e4 8.e3 d5 9.Nc3 a5 10.b5 Bd7 11.a4 b6 12.Nge2 Bb4 13.Nf4 Bg4 14.Be2= Be2 15.Nfe2 Nbd7 16.0–0 Rc8 17.Rc1 Qe7 18.Nf4 Bc3 19.Bc3 Rc4 20.Qb3 Rfc8 21.Rc2 g5 22.Ne2= h6 23.Rfc1 Nf8 24.Be1 Rc2 25.Rc2+= Qd7 26.Rc8 Qc8 27.Nc3 Ng6 28.Nd5+/– Nd5 29.Qd5 Qc1 30.Kf1+– Qa1 31.Qe4 Qa4 32.Qe8 Kg7 33.d5?? Qc4= 34.Kg1 Qd5 35.Qc6 Qd1= 36.Kf1 a4 37.Qb6 Qd3 38.Kg1 a3 39.Qd4 Qd4 40.ed4 Ne7 41.b6 Nc6?? 42.Bc3+/– Kf8? 43.d5+– Nb8 44.Bb4 Ke8 45.Ba3 Kd7 46.g3 h5 47.f4 g4 48.Kf2 f5 49.Ke3 Na6 50.Kd4 Nb8 51.Ke5 (51…Kc8 52.Kf5+–) 1–0. revbodio8 – tommi, Live Game Caissa's Web, 2004.

4.d3 c6 5.e4 Be7 6.Nd2 Be6 7.Ne2 Nbd7 8.f4 Bg4=+ 9.h3 Be2 10.Be2 0–0 11.f5 d5 12.cd5 cd5 13.a3 de4 14.de4=+ Qb6 15.g4 Qe3=+ 16.Qb3 Qb3 17.Nb3 Ne4 18.0–0–0 Nb6 19.Rhf1 Bg5 20.Kb1–/+ f6?? 21.Bf3+= Ng3 22.Bb7?? Rad8?? 23.Rd8 Rd8 24.Rg1 Ne2 25.Re1 Nd4 26.Nc5= Nc4 27.Bd4 ed4 28.Ne6 Re8?? 29.Ka2 Be3 30.Bd5+– Kh8?? 31.Bc4 Rc8 32.Kb3 h5 33.Rd1 a5 34.Nd4 ab4 35.ab4 Rd8 36.Kc3 hg4 37.hg4 Bf2 38.Rh1 (38.Rh1 Bh4 39.Rh4#) 1–0. SgtPepper – Chakra, Live Game Caissa's Web, 2004.

4.d3 Nbd7 5.Nf3 Be7 6.e4 0–0 7.Be2 c6 8.0–0 Re8 9.a4 b6 10.Nbd2 Nf8 11.d4 Bg4 12.de5 de5 13.Ne5 Be2 14.Qe2 Rc8? 15.Nd3 Rc7 16.Nf3 Rd7 17.Nfe5 Rc7 18.c5 N6d7 19.Nd7 Rd7 20.Rad1 Bf6+/– 21.Bf6 Qf6 22.cb6 ab6 23.a5 ba5 24.ba5 Qc3 25.a6 Qc4 26.Nf4 Qe2 27.Ne2 Re4 28.Rd7 Nd7 29.Nc3 Rc4?? 30.a7+– Nb6 31.Ra1 Na8? 32.Rb1 g6 33.Rb8 Kg7 34.Ra8 Rc3 35.Rg8!! Kf6 36.g3 (36…Rc1 37.Kg2+–) 1–0. hal1958 – andersonmello, playchess.de, 2003.

4.d3 Bf5 5.g3 Nbd7 6.Bg2 Be7 7.Nc3 a6 8.e3 c6 9.Nge2 Qb6 10.a3 c5 11.b5 a5 12.0–0+/– 0–0 13.h3 Qc7 14.f4+/– e4 15.de4 Be6 16.Nd5 Bd5 17.ed5 b6 18.Qd3 Rfe8 19.g4 Bd8 20.Ng3 Nf8 21.Nf5 Ng6 22.Qc3 Qd7 23.e4 h5 24.g5 Ra7 25.gf6 Bf6 26.Qc2 Bb2 27.Qb2 f6 28.Qf2 Ne7 29.Ne7 Re7 30.Rae1 Qe8 31.Qh4 Kh7 32.Bf3 Kh6 33.f5 g5 34.fg6! Qg6 35.Bg2 Rf7 36.Rf5 Rae7 37.Ref1 Kg7 38.Qh5 Qh5 39.Rh5 Kg6 40.Rhf5 Kg7 41.R1f4 1–0. iivanov (2130) – dmendiola (2075), net–chess.com, 2005.

4.d3 Bg4 5.Nd2 Be7 6.Ngf3 Nbd7 7.e4 0–0 8.Be2 a5 9.a3 Nh5 10.h3 Bf3 11.Bf3 Nf4 12.Nb3 ab4 13.ab4 Ra1 14.Ba1 c6 15.g3 Ng6 16.0–0 Qb6 17.Bc3 Ra8 18.Qc2 Nb8 19.Qb2 Na6 20.Ra1 Rd8? 21.Nd2 Nf8? 22.b5+– cb5 23.Ba5 Qc5 24.Bd8 Bd8 25.cb5 Nb4 26.Be2 Bb6 27.Rf1 Ne6 28.Nc4 Ba7 29.Kg2 Nd4 30.Rb1 Ne2 31.Qe2 h6? 32.Qd2 Nd3 33.b6 Bb6 34.Nb6 Qd4 35.Qe3 Qe3 36.fe3 Nc5 37.Kf3 Kh7 38.Nc4 Kg6 39.Nd6 f6 40.Nb7 Ne6 41.h4 Kh5 42.Nd6 g5 43.hg5 hg5 44.g4 Kg6 45.Rb6 Ng7 46.Nf5 Ne8 47.Rb7 Ng7 48.Rg7 1–0. hal1958 – guanzi, playchess.de, 2003.

4.d4 c5 5.de5 de5 6.Qd8 Kd8 7.Be5 Nc6 8.Bf6+/– gf6 9.b5 Nd4 10.Na3 a6 11.e3 ab5= 12.Nb5?? Nc2–+ 13.Kd2 Nb4?? 14.a3+– Be7 15.Bd3 Nd3+/– 16.Kd3 Bd7 17.Nf3 Rg8 18.g3 Bc6 19.Ke2 Ra5 20.a4 Bb5 21.ab5+– Ra1 22.Ra1 Kc7 23.Nh4 Rg4 24.Nf5 Bd8 25.f3?? Rc4+= 26.Rb1 Rc2= 27.Kd3 Rh2 28.Rc1 Kb6 29.Kc4 Rb2 30.Nd6 Bc7?? 31.Nc8 (31.Nc8 Ka5 32.Ra1 Ra2 33.Ra2) 1–0. wlittle (2185) – dmendiola (1855), net–chess.com, 2004.

4.d4 Nc6 5.de5 de5=+ 6.Qd8 Kd8 7.b5 Nd4. gtate (2060) – sanbarrett (2370), net–chess.com, 2004.

4.e3 Na6 5.b5 Nc5 6.d4 Ne6 (6...Ncd7 7.Nd2=) 7.d5 (7.de5!? Nd7 8.ed6 Bd6 9.Nf3+=) 7...Ng5 8.f3 a6? (better is 8...h6=) 9.h4+/– Nh5 10.hg5 Qg5 (10...Ng3 11.Rh2 Qg5 12.Qd3+–) 11.Qd2 (better is 11.Ne2!?+–) 11...Ng3+/– 12.Rh2 Nf1 (better is 12...ab5!? 13.e4 Qg6+/–) 13.Kf1+– ab5 14.cb5 b6 (14...Bd7 15.Nc3+–) 15.Nc3 Bf5 16.g4 Bd7 17.Nh3 Qh4 18.Qf2 Be7 19.Qh4 Bh4 20.e4 0–0 (20...Ra5 21.a4+–) 21.Kg2 h6 22.Rah1 f6 23.a4 Bg5 24.Ng5 fg5 25.Bc1 Kf7 26.Kg3 Kg6 27.Be3 Rf6 28.Ra1 Raf8 29.Rf2 h5 (29...Ra8 30.Rc1+–) 30.gh5 Kh5 31.Raf1 R8f7 32.Ne2 g4 (32...Kg6 33.Rc1 Bh3 34.Ng1+–) 33.fg4 Bg4 (33...Kg6 34.Rf6 gf6 35.Rc1+–) 34.Rf6 Rf6 35.Rf6 (better is 35.Rh1 Bh3 36.Rh3 Kg6 37.Rh8+–) 35...gf6 36.Nc1 (36.Kf2 Bd7+–) 36...Bd1 37.a5! ba5 38.b6 (38.Bd2 a4+–) 38...cb6+/– 39.Bb6 a4 40.Bc7 Bc2 41.Kf3 Kg6? (41...f5 42.ef5 Kg5 43.Ne2+=) 42.Bd6?? (better is 42.Ke3+–) 42...f5+= 43.Be5 Be4 44.Kf4 Bd5 45.Nd3 a3 46.Nb4 Be4 (46...Bc4 47.Nc2=) 47.Na2 Bd5 48.Nc3 (48.Nb4!? Bb3 49.Bd4+=) 48...Bc4+= 49.Nd1 a2 50.Ne3 Exerts pressure on the isolated pawn 50...Bd3 ˝–˝. Plock,Joerg – Maliezefski, Mecklenburg, 1999.

4.e3 Ke7 5.Nf3 Ke8 6.Be2 Be7 7.d3 Bg4 8.h3 Bh5 9.Nbd2 Nbd7 10.a3 Bg6 11.Nh4 a5 12.b5 Nc5 13.Ng6 hg6 14.Nb3 (14.d4 ed4 15.ed4 Ne6+/–) 14...Nb3 15.Qb3 Kf8 16.a4 g5 17.d4 ed4 18.Bd4 b6 (18...g4 19.Rd1+/–) 19.0–0–0 Ne4 20.Rhf1 Qc8 (20...Bf6 21.Bf3 Qe7 22.Bf6 gf6 23.Rd5+/–) 21.Bf3 Nc5 (21...Qf5!?+/–) 22.Bc5+– d5?? (22...bc5 23.Ba8 Qa8+–) 23.Be7 Ke7 24.Rd5 Rb8 (24...Kf8+–) 25.Rfd1 (25.Rfd1 Kf8 26.Qa3 Kg8 27.Rd7+–) 1–0. Fournier,Frederic (1895) – andrenobre, Active, 2007.

4.e3 Bf5 5.Nf3 Be7 6.Be2 0–0 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 Bf5).

4.e3 h5 5.Nc3 Be6 6.Nf3 Nbd7 7.Be2 a6 8.Qc2 g6 9.0–0 Bh6 10.d4 e4? (better is 10...Bg7!?+=) 11.Ne4+– Ne4 (11...d5 12.Nc5 Nc5 13.dc5+–) 12.d5 (better is 12.Qe4!? Bg7+–) 12...Bf5 13.Bh8 f6? (better is 13...Nf2 14.e4 Be4+–) 14.Nh4 Ne5 15.Bf3 (15.Bh5!? Qd7 16.Bf3 Nf3 17.gf3 Kf7 18.Nf5 Qf5 19.Qe4 Qe4 20.fe4 Rh8+–) 15...Nf3 16.gf3 Nf2 (16...Ng3 17.Nf5 Nf5 18.Qe4 Kf8+–) 17.Nf5 (worse is 17.Qf2 Kf7+–) 17...gf5 18.Qf5 (18.Qf2?! Kd7+–; worse is 18.Rf2 Ke7+–; worse is 18.Kf2 Ke7+–) 18...Be3 19.Rf2 Bf2 (19...a5 20.Bf6 Qd7 21.Qe4 Kf8 22.Qe3+–) 20.Kf2 b5 21.Rg1 Kf8 (21...Qd7 22.Rg8 Ke7 23.Qf6) 22.Qh7 Qe7 (22...bc4 23.Rg8) 23.Qg8 1–0. pcmvr (2830) – valerypavlovich (2105), net–chess.com, 2014.

4.Nf3 Na6 5.a3 c5 6.b5 Nc7 7.Nc3 Be7 8.Qc2 Bg4 9.e3 0–0 10.h3 Bf3 11.gf3 Ne6 12.Bd3 Ng5 13.Ke2 Qc8 (13...h6 14.Bf5=) 14.Rag1 (14.h4 Ne6+=) 14...h6= (14...Nh3? 15.Kf1+–) 15.f4 ef4 (15...Nh3? 16.Rg2 Nf4 17.ef4+–) 16.Nd5 Nd5 17.cd5 Plans h4 17...f3? (better is 17...f6 18.h4 Nh3+–) 18.Kd1 c4 19.Bh7!! (19.Bc4?! f6 20.Rh2 Rf7+/–; 19.Qc4?! Qc4 20.Bc4 f6+/–) 19...Kh8 (19...Nh7 Exploits the pin 20.Rg7 Demolishes the pawn shield) 20.Bf5 Qc5 21.h4 Kg8 (21...Ne6 22.Be6 Bf6 23.Bf6 gf6+–) 22.hg5 Bg5 23.Bh7 (23.Rg5 c3 24.Bc3 Qc3 25.Qc3 hg5 26.Bh7 Kh8 27.Bg6 Kg8 28.Rh7 f6 29.Qc7 Rfc8 30.Qg7) 23...Kh8 24.Rg5! f6 (24...hg5 25.Bg8 Discovered attack) 25.Bg8! Kg8 (25...Rg8 Theme: Deflection from f6 26.Bf6) 26.Rh6 fg5 (26...Rf7 27.Bf6 Rf6 28.Qh7 Kf8 29.Qg7 Ke8 30.Rh8 Rf8 31.Rf8) 27.Qh7 Kf7 Black threatens to counter with Qxd5 28.Qg7 Ke8 29.Rh7 1–0. Woelfelschneider,Peter – Ulzenheimer, 2009.

4.Nf3 Nbd7 5.a3 g6 6.e3 Bg7 7.Nc3 0–0 8.e4 c6 9.Be2 a6 10.0–0 Re8 11.d3 Nf8 12.Qc2 Bg4 13.Rad1 Ne6 14.Rfe1 Nf4 15.h3 Bf3 16.Bf3 h5 17.d4 Qe7 18.Ne2 Ne2 19.Qe2 Nh7 20.d5 Ng5 21.dc6 bc6 22.Bc1 a5 23.Bg5 Qg5 24.Rd6 ab4 25.ab4 Bf8 26.Rc6 Bb4 27.Rb1 Bc3 28.Qc2 Bd4 29.Qc1 Qc1 30.Rc1 Ra2 31.Rf1 Rc2 32.Bd1 Rc3 33.Ba4 Ra8 34.Bb5 Rc2 35.Ra6 Ra6 36.Ba6 Kf8 ˝–˝. tightfist (2350) – marcosaa (2545), net–chess.com, 2014.

4.g3 a5 5.b5 c6 6.d4 ed4 7.Qd4 Be7 8.Nc3 0–0 9.Bg2 Be6 10.Nf3 Qc7 11.Ng5 h6 12.Ne6 fe6 13.Qe3 e5 14.0–0 Nbd7 15.Rad1 Nc5 16.f4 Rae8 17.fe5 de5 18.h3 Bd6 (better is 18...Nfd7!? 19.Rf8 Rf8+=) 19.Ba3+– Qe7?? (19...Nfd7 20.b6 Rf1 21.Kf1 Qb8+/–) 20.Rd6! Qd6 Decoy to d6 21.Bc5 (21.Bc5 Qe6 22.Bf8 Rf8 23.Qc5+–; 21.Qc5?! Qd4 22.Qd4 ed4 23.Bf8 dc3 24.bc6 bc6+–) 1–0. pierrez – mzharzh, Yahoo, 2005.

4.g3 b6 5.Bg2 c6 6.Nf3 Bb7 7.0–0 Be7 8.Nc3 (8.d4 e4 A) 9.Nh4 Qd7 (9...Bc8 10.Qd2 h6 11.Bh1 d5 12.cd5 cd5 13.a3=) 10.Qd2 h6 11.Bh1 d5 12.c5 (12.cd5 cd5 13.a3+=) 12...0–0 13.f3+=; B) 9.Nfd2 d5 10.Qb3 0–0 B1) 11.Nc3 Re8 (11...Bc8 12.b5 Bg4 13.bc6+=) 12.e3 a5= 13.a3= (13.cd5=); B2) 11.a3 Re8 12.Nc3 Bc8 13.e3= (13.Rac1=)) 8...Nbd7 (8...0–0 9.a3 (9.Qc2 Qd7 10.d4 ed4 11.Nd4 d5 12.cd5 Bb4=) 9...Nbd7 10.d4 e4 11.Nh4 a5 12.d5 ab4=) 9.Nh4 (9.d4 0–0 10.Qc2 Re8 11.Rfd1 e4 12.Ne4 Ne4=; 9.a3 0–0 10.d4 e4 11.Nh4 d5 12.Nf5 a5+=) 9...e4 (9...d5!? 10.Nf5 (10.cd5 cd5 11.Nf5 0–0 12.Qb3 e4+=) 10...0–0 11.b5 (11.cd5 cd5= 12.Qb3 e4+=) 11...cb5 12.Nb5 a6+=) 10.Nf5+/– White launches an attack (worse is 10.Ne4 Ne4 11.Be4 Bh4 12.gh4 Qh4=) 10...Rg8 (10...d5 11.Ng7 (11.b5 0–0 12.bc6 Bc6 13.cd5 Nd5 14.Ne4 Bf6+–) 11...Kf8 12.Nf5 Bb4+/–) 11.Ne4+– Ne4 12.Be4 Nf6 13.Bf3 Qd7 14.Qc2 0–0–0 15.b5 c5 16.Bc6 Bc6 17.bc6 Qc7 18.Qd3 g6 (better is 18...Rdf8+–) 19.Ne3 Qc6 20.Bf6 Bf6 21.Nd5 Bg5 22.f4 Bf4 (22...Bh4+–) 23.Ne7 (23.Ne7 Kb7 24.Nc6 Kc6 25.Qd5 Kc7 26.Qf7 Kb8 27.Rf4+–) 1–0. pierre – kungen, internet, 2008.

4.g3 Bd7 5.Bg2= Bc6 (5...c6 6.d4=) 6.Nf3 b6 (6...Nbd7 7.0–0=) 7.0–0+= Be7 8.a4 (8.d4 e4 9.Nfd2 d5+=) 8...a5 9.b5 Bb7 10.d4 ed4 11.Qd4 0–0 (11...Nbd7 12.Nc3+=) 12.Nc3 Nbd7 13.e4 (13.Nd5 Nc5 14.Nd2 Ne6+=) 13...Nc5= 14.Nd2 Ne6 15.Qe3 Nd7 (15...Ng4 16.Qe2 Ne5 17.Nb3=) 16.Nd5+= Bd5 (16...Re8!?+=) 17.cd5+/– Nec5 18.f4 White prepares e5 18...Bf6 19.e5 (19.Bf6 Qf6 20.Nc4 Rae8+=) 19...de5 20.fe5 (20.Be5 Ne5 21.fe5 Bg5+=) 20...Bg5= 21.Qc3 (21.Qe2 Bd2 22.e6 Qg5 23.ed7 Rad8+=) 21...Bd2 22.Qd2 Nb3 23.Qc3 Na1 24.d6 cd6 White gets strong play along the open c–file (24...Nc5 25.dc7 Qc7 26.Ba8 Ra8 27.Ba1+=) 25.Ba8= Qa8 26.ed6 Do you see the mate threat? 26...f6 27.Qc4 Kh8 28.Ba1 Nc5 (28...Rc8 29.Qd3=) 29.Re1 (29.Rc1 Re8=) 29...Qd8= 30.Qd5 Re8 (30...h6+=) 31.Rd1 (31.Re8 Qe8 32.Bd4 Na4+–) 31...Re2 (31...Na4 32.d7 Rf8+=) 32.Bd4+= Nd7 (32...Ne6 33.h3+=) 33.Qc6 h6 34.Rc1 Re8 (34...Kh7 35.Bf2+/–) 35.Kf2 (35.Qc7 Kg8+/–) 35...Kg8? (better is 35...Ne5 36.Be5 fe5+= (36...Re5?? 37.Qc8 Qg8 38.d7 Rf5 39.Ke2 Re5 40.Kf3 Rf5 41.Kg4 Rg5 42.Kf4+–)) 36.Qd5+– Kf8 (better is 36...Kh8 37.Rc7 Rg8+–) 37.Rc7 Threatening Qb7 37...Ne5 (37...Re5 38.Qc4 Re8+–) 38.Be5 (38.Be5 Qc7 39.dc7 fe5 40.Qd6 Kg8 41.Qd8 Rf8 42.Qf8 Kf8 43.c8Q Ke7 44.Qc7 Ke6 45.Qg7+–) 1–0. Zuccotti,Eduardo – Kunitz,Klaus, Grand Prix II Buenos Aires, 1992.

4.g3 Ng4 5.e3 Qf6 6.f4 ef4?? 7.Bf6+– gf6 8.ef4 d5 9.a3 Nc6 10.Nf3 a5 11.cd5 (11.cd5 Nb8 12.h3+–) 1–0. wlittle (1955) – amitanytime (1715), net–chess.com, 2002.

4.a3 a6

5.d3 b5 6.cb5 ab5 7.Nc3 c6 8.g3 Bb7 9.Bg2 Qc7 10.Rc1 Qb6 11.Qb3 Be7 12.e3 0–0 13.Nge2 Nbd7 14.0–0 Rfd8 15.d4 ed4 16.Nd4 Ne5 17.Rfd1 Nc4 18.a4 Nb2 19.a5 Qa7 20.Qb2 d5 21.Ndb5 (better is 21.Na2!? Qa6 22.Nf5+=) 21...cb5+= 22.Nb5 Qb8 23.Nc7 Ra7 24.Nb5 Ra8 25.Nc7 Ra7 26.Nb5 Ra8 ˝–˝. Schalkwijk,Peter – Moreno,Alejandro, 39. LSS No Engine Cup Preliminary, 2011.

5.e3 c5 6.Nf3 e4 7.Ng5 Be7 (better is 7...h6!? 8.Nh3 Bh3 9.gh3 cb4 10.ab4 d5+=) 8.Nc3+= 0–0 9.Nge4 Ne4 10.Ne4 cb4 11.ab4 d5 12.cd5 Qd5 13.f3 (13.Qf3!? Nd7 14.b5+/–) 13...Bb4= 14.Be2 Bf5 15.Nc3 Bc3 16.Bc3 Nc6? (16...Be6 17.Ra5 Qd7 18.Qa1=) 17.0–0?? (better is 17.e4 Be4 18.fe4 Qe4 19.0–0+–) 17...Qd6 18.e4 Be6 19.d4 (better is 19.f4 Nd4 20.Rb1=) 19...Ne7?? (better is 19...Rfd8–/+) 20.d5+/– Bd7 21.Qb3 Bb5 (better is 21...Ng6!?+/–) 22.Bb5+– ab5 23.Qb5 b6 24.Bb4 Qc7 25.Rfc1 Qb7 (25...Ra1 26.Ra1 Rb8 27.Rb1+–) 26.Rab1 Rfc8 27.Rc8 Rc8 28.Be7 Qe7 29.Qb6 f5 30.Qb7?? (30.ef5 Kh8+–) 30...Qe8?? (better is 30...Rc1! 31.Kf2 Qh4 32.Ke3 Qe1 33.Kf4 Rb1 34.Qc8 Kf7 35.Qd7 Kf8 36.Qd8 Kf7 37.Qd7 Kf8 38.Qd8 Kf7 39.Qd7=) 31.e5! (31.ef5?! Qe3 32.Kf1 Qd3 33.Kf2 Qd2 34.Kg3 Qg5 35.Kh3 Qh5 36.Kg3 Qg5 37.Kh3 Qh5 38.Kg3 Qg5=) 31...f4 (31...Qe5 32.Qc8 Deflection) 32.d6 Rc2 (32...Qe6+–) 33.Qb3 (33.Qb3 Qf7 34.Qc2 Qa7 35.Kh1+–) 1–0. Fournier,Frederic (1950) – elgarrufo, Active, 2009.

5.e3 h6 6.d3 Bg4 7.Be2 Be2 8.Ne2 Be7 9.0–0 Nbd7 10.Nbc3 b6 11.d4 ed4 12.Nd4 0–0 13.Nc6 Qe8 14.Ne7 Qe7 15.Nd5 Nd5 16.cd5 Nf6 17.Rc1 Rfc8 18.Re1 a5 19.b5 a4 20.f3 Ra5 21.Qd3 Kf8 (21...Nd7 22.Bc3 Ra7 23.Qf5+/–) 22.e4 Nd7 23.e5 Nc5?? (23...de5 24.d6! Qe6 25.dc7 f6+–) 24.Qh7+– Ke8 (24...Qd7 25.Rc5! de5 26.Qh8 Ke7 27.Qg7 Re8 28.Be5 Kd8 29.Rc7 Qe7+–) 25.ed6 Qe1 26.Re1 Kd7 (26...Ne4 27.Qg8 Kd7 28.Qf7 Kd6 29.Qe6 Kc5 30.Qc6) 27.Qf5 Kd6 (27...Ne6 28.Qf7 Kd6 29.Qe6 Kc5 30.Qc6) 28.Qe5 (28.Qe5 Kd7 29.Qe7) 1–0. Fournier,Frederic (2370) – sof, echecsemail.com, 2008.

4.a3 c6

5.d4 ed4 6.Bd4 Bf5 =.

5.e3 Nbd7 6.Nf3 Be7 7.Be2 0–0 8.0–0 a5 9.d3 ab4 10.ab4 Ra1 11.Ba1 Qb6 12.Bc3 e4 13.Nd4 c5 (13...Ne5 14.Qc2 c5 15.Nb5 cb4 16.Bb4=) 14.bc5 Nc5 15.Nb5 Bd7 16.N1a3 (16.Bf6!? Bf6 17.d4+/–) 16...Ra8= 17.d4 Na4 18.Bb4 Bf8 19.Qc2 White intends c5 19...d5 20.Bf8 Kf8 21.c5 Qa5 22.Rc1 Bc6 23.Nd6 (better is 23.Ra1!?+=) 23...Nc5+= 24.dc5 Qa3 25.g3 Nd7 26.Nb5 Qa2 27.Nd4 (27.Qa2 Ra2 28.Nd4 Ke7–/+) 27...Qc2 28.Rc2 Ra5 (28...Ba4!? 29.Rc3–/+) 29.Nb3 Ra3 30.Nd4 g6 31.Kg2 f5 32.h4 Ke7 33.Bb5? (better is 33.Rc1!?–/+) 33...Bb5–+ 34.Nb5 Ra5 35.Nc7 Nc5 36.Nd5 Kd6 37.Nf6 h5 38.Ne8 (38.Rd2 Nd3 39.f3–+) 38...Ke7 39.Nc7 Nd3 40.f3 (40.Kh3–+) 40...Ne1 (40...Ne1 41.Kf2 Nc2–+) 0–1. Fournier,Frederic (2035) – peternelly (2095), Active, 2004.

5.e3 Be6 6.Nf3 Bg4 (6...e4 7.Nd4=) 7.h3 Bh5 8.g4 Bg6 9.Nc3 Ne4 (9...e4 10.Nh4=) 10.Ne4 Be4 11.d3 Bg6 12.h4 White prepares the advance g5 12...h5 13.g5 Bf5 14.e4 Bg4 15.Be2 (15.d4 d5 16.de5 de4 17.Qd8 Kd8+=) 15...Nd7 (15...f5 16.ef5 Bf5 17.d4+=) 16.Ng1 (16.d4 Qe7+=) 16...Be2= 17.Ne2 g6 18.f4 f6 19.Qd2 (19.Rg1 Bg7+=) 19...Be7 20.0–0–0 (20.Rf1 fg5 21.fg5 Rf8+=) 20...Rg8 (20...a5 21.b5=) ˝–˝. Egerland,Edit (2230) – Macekova,Martina, Bratislava Slovan op, 1990.

5.e3 Bg4 6.Be2 Be2 7.Ne2 =.

4.Qa4 Bd7

5.b5 Na6 6.e3 Nc5 7.Qc2 Be7 8.Nf3 0–0 9.Nc3 Bg4 10.Be2 c6 (10...e4 11.Ng5 Bf5 12.Ba3 Nd3 13.Kf1+=) 11.d4= ed4 12.Nd4 Be2 13.Nce2 cb5 14.cb5 Rc8 15.0–0 a6 16.ba6 ba6 17.Rac1 d5 (17...Re8 18.Nf4+=) 18.Nf5+/– (18.Nf5 Re8 19.Nf4+/–) 1–0. guest1758 – Discipulus, ICC, 2006.

5.b5 c6 6.Bc3 cb5 7.cb5 Nd5 8.e4 Nc3 9.Nc3 Be7 10.Qb3 0–0 11.Rc1 Be6 12.Bc4 Qd7 13.Nf3 Bc4 14.Qc4 Rc8 15.Qb3 Qe8 16.0–0 Nd7 17.Rfd1 Nc5 18.Qd5 b6 19.d4 ed4 20.Nd4 Bf6 21.Nf5 (21.Qd6? Rd8 22.Qc6 Rd4–+) 21...Bc3? (better is 21...Rd8+/–) 22.Nd6+– (22.Rc3?! Rd8+/–) 22...Rd8 23.Qa8 (23.Rc3 Rd6 24.Qd6 Ne4+=) 23...Ra8 24.Ne8 Ne4?! (24...Be5 25.Nd6 Bd6 26.Rd6 Ne4+–) 25.Nc7 Rf8 26.f3 Bd2 27.fe4 Bc1 28.Rc1 Rc8 29.Rc6 Rd8 30.Nd5 Re8 31.Rc8! (31.Rc8 Rc8 32.Ne7 Kf8 33.Nc8+–) 1–0. pereira – vova, sv.lichess.org, 2012.

5.b5 Be7 6.d4 0–0 7.de5!? A) 7...de5 A1) 8.Nc3 Bf5 (8...Na6 9.Nf3 Bd6 10.e3 Nc5 11.Qc2 g6 12.Be2 Bf5 13.Qd1 a6) 9.Nf3 Nbd7 10.h3 Nc5 11.Qd1 Qe8 12.g4 Rd8 13.Qc1 e4; A2) 8.Be5 Ng4 9.Bc3 Bf5 10.Nf3 Nd7 11.Qd1 Bc5 12.e3 Qe7 13.Bd4 Rfd8; A3) 8.Nf3 Bf5 (8...e4 9.Nd4 Na6 10.Nc3 Nc5 11.Qc2 Bd6 12.e3 Ng4 13.h3 Qh4) 9.Nc3 Nbd7 10.Rd1 Bd6 11.Nd5 a6 12.Qb3 Nc5 13.Qe3 Ng4; B) 7...Ne4 B1) 8.Nc3 Nc3 (8...Nc5 9.Qc2 de5 10.Nf3 f6 11.Rd1 a6 12.e3 Bd6 13.Ba3 h6) 9.Bc3 Na6 10.Nf3 Nc5 11.Qc2 f6 12.ed6 Bd6 13.e3 a6; B2) 8.ed6 Bd6 (8...Nd6 9.Nf3 Na6 10.Nbd2 Nc5 11.Qa3 Nde4 12.Qe3 Nd2 13.Nd2 a6; 8...Bh4 9.g3 Bf6 10.dc7 Qc7 11.Qa3 Bb2 12.Qb2 Rd8 13.Nc3 Nc3) 9.Nc3= Qf6 10.Nf3 Re8 11.Qb3 Nc5 12.Qd1 Bg4 13.e3 Nbd7.

5.b5 Be7 6.d4 0–0 7.Nf3 ed4+= (7...Bf5 A) 8.Nbd2 e4 (8...Nbd7 9.g3 Nb6 10.Qb3 e4 11.Nh4 Bd7 12.a4 a5 13.Ng2 c6) 9.Nh4 Be6 10.g3 Nbd7 11.Qc2 c6 12.Rc1 Rc8 13.bc6 Rc6; B) 8.g3 Nbd7 9.Nbd2 a6 10.Bg2 ab5 11.Qb5 Ra6 12.Qb3 Rb6 13.Qc3 h6; C) 8.Nc3 Nbd7 9.g3 a6 10.Bg2 ab5 11.Qb5 Ra6 12.Bc1 c6 13.Qb3 Rb6) 8.Bd4 a6 (8...Be6 9.e3+= c5 10.Bc3 Nbd7 11.Nbd2 d5 12.Qc2 Nb6 13.Rd1 g6; 8...Na6 9.Nc3 Nc5 10.Bc5 dc5 11.Rd1 a6 12.Qb3 Re8 13.e3 h6; 8...Re8 9.Nc3 c5 10.Be3 Na6 11.Bf4 Nc7 12.Qd1 a6 13.a4 ab5; 8...Bf5 9.Nc3 c5 10.Be3 Nbd7 11.Rd1 Re8 12.h3 Qc7 13.Bf4 Nb6) 9.Nbd2 d5 (9...Bf5 10.g3 Nbd7 11.Nh4 ab5 12.Qb5 Be6 13.Bg2 Nc5) 10.e3 dc4 11.Bc4 Be6 (11...c6 12.Rb1+= (12.bc6 Nc6 13.Qd1 Bf5) 12...cb5 13.Bb5 Bb5) 12.0–0 (12.Rb1 Bc4 13.Nc4 (13.Qc4 ab5) 13...Qd5+= (13...b6=)) 12...Bc4 (12...c6 13.Be6 fe6 14.Qc2=) 13.Nc4+= Nbd7 (13...Qd5+=) 14.Rfd1 ab5 (14...Qe8 15.ba6 Ra6 16.Qb3=) 15.Qb5 Qc8 16.Nh4 Ne4? (better is 16...Re8!?+=) 17.Nf5+– Bf6?? (better is 17...Re8 18.Ng7 Rd8+–) 18.Bf6 Ndf6 (18...Re8 19.Ne7 Re7 20.Be7+–) 19.Ne7 Kh8 20.Nc8 Rfc8 21.Qb7 1–0. pierre – vostok, internet, 2011.

5.b5 Be7 6.d4 ed4 7.Bd4 c5 8.Bc3 0–0 9.Nf3 Ne4 10.Nfd2 Nc3 11.Nc3 Bf6 12.Rc1 Bg4 13.Nd5 Nd7 14.Qc2 Re8 15.e3 Bg5 16.Bd3 Ne5 (better is 16...g6!?+/–) 17.Bh7+– Kh8 18.Bf5 Bf5 19.Qf5 g6 20.Qc2 Kg7 21.0–0 Rh8? (21...Ng4+–) 22.f4 Ng4 23.fg5 Qg5 24.h3 Ne5 (24...Rh3 25.Qb2 Ne5 26.Ne4+–) 25.Ne4 Qh4 26.Nd6 f5 (26...Qg3 27.Ne4 (27.Nb7?! Rh3 28.Rf7 Kf7 29.Qf2 Qf2 30.Kf2 Rh5+/–) 27...Qh4 28.Ndf6+–) 27.Qc3 Qg3 (27...Rae8 28.Rf5! gf5 29.Nf5 Kg6 30.Nh4 Rh4 31.Qc2 Kg7+–) 28.Rf3 (28.Rf3 Qg2 29.Kg2+–) 1–0. kamret (2195) – winningchess (1930), GameColony.com, 2003.

4.Qc2 Be6

5.e4 Nc6 6.b5 Nb4 (6...Ne7 7.Nf3=) 7.Qd1 (7.Qb3 Ne4 8.d3 Nf2 9.Kf2 d5+=) 7...Ne4= 8.d3 Nc5 9.a3 Nbd3 10.Bd3 Be7 (10...Qh4 11.Be2+=) 11.Nc3+/– 0–0 12.Nf3 Nd3 (12...a6 13.0–0+/–) 13.Qd3 Qd7 (13...f5 14.0–0+/–) 14.Nd5 Bd5 (14...Rae8 15.0–0+/–) 15.cd5 f5 16.Qc4 e4 (16...Bf6 17.0–0+/–) 17.Nd4+– Bf6 18.0–0 Be5 (18...a6 19.Rfb1 Rf7 20.ba6 Ra6 21.Ne6+–) 19.Rab1 Qf7? (better is 19...Bd4 20.Bd4 Rfe8+–) 20.Ne6 Rfe8 (20...Bb2 21.Nf8 Rf8 22.Rb2+–) 21.Be5 de5 22.Ng5 Qd7 (22...Qg6 23.d6 Kf8 24.d7 Qg5 25.de8R Re8 26.Qc7+–) 23.d6 Kf8 (23...Kh8 24.Nf7 Kg8 25.Ne5 Qe6+–) 24.Nh7 1–0. gioco1b4 – curic, 1800 Microsoft, 2012.

5.e4 Be7 6.Nf3=.

5.Nf3 Nbd7 6.e4 g6 (6...a5 7.b5=) 7.Be2 Bg7 8.0–0 0–0 9.Nc3 Nh5 10.Nd5 f5 11.d3 c6 12.Nc3 Nf4 13.Bd1 Qe7 14.Bc1 (14.Re1 a5 15.a3 ab4 16.ab4 Ra1 17.Ba1 fe4 18.Ne4 b6+=) 14...g5 (better is 14...fe4!? 15.de4 Bc4 16.Bf4 ef4–/+ (16...Bf1?! 17.Bg5 Bf6 18.Bf6 Qf6 19.Kf1+=)) 15.Rb1 Bf6 (15...fe4 16.Ne4 g4 17.Nfg5+=) 16.ef5 Bf5 17.Ne4 Rac8 18.g3 (18.Qb3 Be6=) 18...Nh3+= 19.Kh1 Can g5 get defended? 19...g4 (19...d5 20.Nf6 Qf6 21.Nd2–/+) 20.Ng1 Ng1 21.Kg1 d5 22.Nf6 Qf6 (worse is 22...Rf6 23.Bg5+/–) 23.c5 (23.Be2 Qg6+=) 23...Qg6 Black intends e4 (23...e4 24.Bf4–/+) 24.Be2 (24.Rb3!?+=) 24...e4–/+ 25.Rb3 Ne5 (25...ed3 26.Bd3 Ne5 27.Bf5 Rf5 28.Ra3–/+) 26.Qc3 (26.d4 Nf3 27.Bf3 ef3+=) 26...Nf3 (better is 26...ed3 27.Bd1 Rce8–+) 27.Bf3= gf3 (27...ef3 28.Ra3=) 28.Bb2 (28.de4 de4 29.Ra3 a6=) 28...Rcd8 (28...ed3 29.b5+=) 29.Qd4 Qg4 30.h3 Qg6 31.h4 (31.Re1 Rd7= (worse is 31...ed3 32.Rd3 Be4 33.Ra3+=)) 31...Qg4 (31...ed3 32.b5+=) 32.Rd1 (32.Re1 a6=) 32...Rd7 (32...e3 33.h5–/+) 33.Kf1 (better is 33.de4!? Be4 34.Re1+=) 33...Re7+= 34.Qh8 (better is 34.Qe3+=) 34...Kf7–+ 35.Qf6 (35.Qg7 Qg7 36.Bg7 Kg7 37.de4 Re4–+) 35...Ke8 36.Qg5 (36.Qe7 Ke7 37.de4 Qh3 38.Ke1 de4 39.Bd4–+) 36...Qh3 37.Ke1 e3! (37...e3 38.Qe3 Re3 39.Kd2 Re2 40.Kc1 Rf2–+) 0–1. Sternik,Ryszard – Kuczynski,R (2510), Rzeszow POL, 1987.

4.Qc2 Be7

5.a3 c6 (5...0–0 6.Nf3–/+) 6.e3 Qc7 (6...a5 7.b5+=) 7.d4 (7.Nf3 a5=) 7...Be6 (7...ed4 8.Bd4 a5 9.Nf3=) 8.Nd2 Nbd7 9.Ngf3 0–0 10.h3 (10.Be2 h6=) 10...Ne8 (10...a5 11.Be2=) 11.Ne4 (11.Bd3 h6+=) 11...f6 (11...h6 12.Be2=) 12.de5 (12.Bd3 g6 13.0–0 d5 14.cd5 cd5+=) 12...de5 (12...Ne5 13.Be2+=) 13.g4 (better is 13.c5!?+/–) 13...a5 (13...c5 14.b5 a6=) 14.ba5 (better is 14.c5!? b5 15.Bd3=) 14...Qa5–/+ 15.Nfd2 f5 16.gf5 Bf5 17.Bd3 Be4 (17...Nd6 18.Bc3 Qa4 19.Bb4+=) 18.Be4+= Nef6 19.Bg2 Nc5 20.0–0 Na4 21.Nb3 Qc7 22.Bc1 (22.Rfd1 Nb2 23.Qb2 Ra4+=) 22...e4–/+ 23.Nd4 Qe5 24.f4 (24.Bd2!?–/+) 24...ef3!–+ 25.Bf3 (25.Nf3 Qa1 Pinning (25...Qa1 Deflection); 25.Rf3 Bd6 Combination; 25.Bf3 Bc5 Combination) 25...Bd6 (25...Nh5 26.Rb1 Nc5 27.Qh2–+) 26.Ra2 (26.Rb1 Rf7 27.Nf5 Bf8 28.Rb7 Rb7 29.Bc6 Rba7+=) 26...Nc5 (26...g6 27.Qg2–/+) 27.Nf5 (better is 27.Qf5–/+) 27...Bc7?? (better is 27...Nfe4 28.Bg4 Nc3–+) 28.Bb2= Qe8 29.Qg2 g6 (29...Qd7 30.Bd1 Kh8 31.Bc2=) 30.Nh6 Kg7 31.Ng4 (31.Qg5 Ncd7 32.Ng4 Qe7=) 31...Ncd7= 32.Bd4 Ne5 33.Nf6 Rf6 34.c5 Qe6 (34...Nf3 35.Rf3 Be5 36.Rb2=) 35.Rb2 Ra7 (35...Nf3?? 36.Qf3 (36.Rf3?! Be5+=) 36...Raf8 37.Rb7+–; 35...Ra3 36.Rb7 Kf8 37.Rc7 Nf3 38.Rf3 Rf3 39.Qf3 Qf5 40.Qf5 gf5 41.Rc6+–) 36.Rfb1 Kh6 (36...Qc8 37.Bg4 Qb8 38.Rf2+=) 37.Be2 (better is 37.Bg4 Qe7 38.Rb7 Rb7 39.Rb7+/–) 37...Rf5? (37...Qc8 38.h4 Kg7 39.Bc4+=) 38.e4 (38.Rb7?! Rb7 39.Rb7 Rg5 40.Rc7 Rg2 41.Kg2 Qf5+=) 38...Rf7 39.h4 (39.Rb7 Ra3 40.h4 Bd8 41.Rf7 Nf7+/–) 39...Bd8 40.Rb3 Bf6 (40...Bh4? 41.Qh2 Qe7 42.Rh3+– (42.Be5?! Rf2 43.Bf4 Kg7 44.Rb7 Rh2 45.Re7 Be7 46.Be5 Bf6 47.Bh2 Bd4 48.Kg2 h5+–)) 41.Be3 Kg7 42.h5 Nc4 43.h6 (43.Bc4 Qc4 44.Qg4 Bd4=) 43...Kg8 44.Bg4 (44.Bc4 Qc4 45.Kh1 Be5–/+) 44...Qe5 (44...Qe7 45.Qe2 Qe4–/+) 45.Bc1? (better is 45.Qh3 Re7 46.Bf2+=) 45...Be7–+ 46.Bf3? (better is 46.Be2 Bc5 47.Kh1–+) 46...Bc5 47.Kh1 Na3 48.Ba3 Ra3 49.Ra3 Ba3 50.Ra1 (50.Qa2 Qe7 51.Rb7 Qb7 52.Qa3 Qe7–+) 50...Qf4 (50...Qa1 51.Qg1 Qc3 (51...Rf3?! 52.Qa1 Bf8 53.Kg2=) 52.Qf1 Rf3 53.Qg1 Rh3 54.Qh2 Bc5 55.Qh3 Qh3) 51.Bg4 Qh6 52.Bh3 (52.Qh2 Qe3 53.Qe2 Qc3–+) 52...Bd6 (better is 52...Kg7 53.Rd1 Qe3–+) 53.Rd1 (53.Ra8 Bf8 54.Qg3–+) 53...Qf4 (better is 53...Rf2! 54.Rd6 Rg2 55.Kg2–+) 54.Rf1 Qf1 55.Qf1 Rf1 56.Bf1 Kg7 57.Kg2 Kf6 58.Kf3 Ke5 (58...h5 59.Kg2–+) 59.Bh3 (59.Bc4 b5 60.Bb3 c5–+) 59...h5 60.Bc8 b6 61.Bd7 c5 62.Be8 (62.Ke3 h4–+) 62...Kf6 63.Ke3 (63.e5 Be5 64.Bb5 g5–+) 63...Be5 64.Bb5 (64.Kd2 Kg5 65.Kd3 h4–+) 64...Kg5 65.Kf3 (65.Be8–+) 65...Kh4 66.Bf1 g5 67.Kg2 g4 68.Kf2 Kg5 69.Ke3 Bd4 (69...Bd4 70.Kd2 Kf4–+) 0–1. Laco,Giuseppe (2105) – Colombo,Paolo (2115), Camp. Italiano Senior, 2010. (=1.c4 Nf6 2.b4 d6 3.Bb2 e5 4.Qc2 Be7)

5.Nc3 0–0 6.g3 Nc6–/+ 7.b5 Nd4 8.Qc1 c6 9.e3 Nf5 10.Bg2 Bd7 11.a4 a6 12.Nge2=+ Rb8 13.Qc2 Qc8 14.Qd3 Be6 15.Rc1 Rd8 16.Nd1 Nd7 17.Qc2 cb5=+ 18.ab5 ab5 19.cb5 Qc2 20.Rc2 d5 21.0–0 f6 22.d4= Rdc8 23.Rc8 Rc8 24.Ndc3 b6 25.Nd5 Bd5? 26.Bd5+– Kf8 27.Be6 Rc2 28.Bd7 Rb2 29.Bf5 Re2 30.Bh7 Kf7 31.Be4 ed4+/– 32.Bd5 Kf8 33.ed4+– Rd2 34.Ra1 g5 35.Ra4 Bc5 36.dc5 Rd5 37.c6 Ke7 38.Rc4 Kd8 39.Rb4 Kc7 40.Kf1 Re5 41.f4 gf4 42.gf4 Rh5 43.Kg2 f5 44.Rd4 Rh4 45.Rd7 Kc8 46.Kg3 Rg4 47.Kf3 Rh4 48.Rf7 Rh2 49.Rf5 Rb2 50.Rd5 (50.Rd5 Rb1 51.f5+–) 1–0. janbs – Alviss, ChessWorld.net, 2004.

5.g3 0–0 6.Bg2 Nc6 7.a3 a6 8.e3 Rb8 9.Ne2 Be6 10.d3 Qc8 11.0–0 Bh3 12.f4 Bg2 13.Kg2 ef4 14.Nf4 Ng4 15.Qd2 Bg5 16.Nc3 Ne7 17.Nce2 Nf5 18.Rf3 Nge3 19.Re3+= Ne3 20.Qe3 Qf5 21.Rf1 Rbe8 22.Qf3 Bf4 23.Nf4 Qd7 24.Nh5 Qe6?? 25.Ng7 Qe2 26.Rf2 Qf3 27.Rf3?? Re2+= 28.Rf2 Re3?? 29.Rd2 f6 30.Nf5 Re1 31.Kf3 h5 32.Re2 Re2 33.Ke2 Kf7 34.Kf3 Kg6 35.Kf4 Re8 36.Bc3 Re2+/– 37.h4?? Ra2?? 38.Ne7 Kf7= 39.Nd5 c6 40.Nf6+/– Ra3 41.Bb2 Rb3= 42.Ba1 Rd3 43.Nh5+= Rb3 44.b5 ab5 45.cb5 Rb5 46.g4 d5 47.g5 Kg6?? 48.Nf6?? Rb4=+ 49.Kg3 d4 50.Ng4 d3?? 51.Ne5 Kf5 52.Nf3 Rg4 53.Kf2 c5 54.Bc3 c4 55.Bd2 b5 56.Bc3 Re4 57.Nd4 Kg6 58.Nb5 Rh4 59.Ke3 Rg4 60.Na3 Kg5 61.Bd4?? Rd4!–+ 62.Kd4 d2 63.Nc4 d1Q 64.Kc5 Qg1 65.Kb4 Kf4 66.Kc3 Qc1 67.Kd4 Qa1 68.Kd3 Qb1 69.Kd4 Qb4 70.Kd3 Qb3 71.Kd4 Kf5 72.Ne3 Ke6 73.Ke4 Qb4 74.Kd3 Ke5 75.Nc4 Kd5 76.Ne3 Kc5 77.Ke2 Qb2 78.Kd3 Qd4 79.Ke2 Kb5 80.Kf3 Kc6 81.Nf5 Qf6 82.Ke4 Qe6 83.Kf4 Kd5 84.Ne3 Kd4 85.Nf5 Kd3 86.Ng3 Kd2 87.Ne4 Ke2 88.Ng3 Kf2 89.Ne4 Kg2 90.Ng5 Qe2 91.Kf5 Kg3 92.Ne4 Kh4 93.Nf6 Qc4 94.Ke5 Qc5 95.Nd5 Kg5 96.Ke4 Qc4 97.Ke5 Qg4 98.Kd6 Kg6 99.Ke5 Qf5 100.Kd4 Kf7 101.Ne3 Qd7 102.Ke4 Ke6 103.Kf4 Qd4 104.Kf3 Ke5 105.Ng4 Kf5 106.Nh6 Ke6 107.Ng4 Qd3 108.Kf4 Qf5 109.Kg3 Qg5 110.Kf3 Qf5 111.Kg3 Qd3 112.Kf4 Kd5 113.Ne3 Ke6 114.Ng4= ˝–˝. alaamattar (2145) – sgalahad (2025), net–chess.com, 2007.

4.Nc3 c5

5.a3 Be7+=.

5.b5 b6 6.Nf3 g6 7.e3 Bg7 8.Ne5 de5 9.Qf3 0–0? (better is 9...Nc6!? 10.bc6 Bg4+/–) 10.Qa8+– Nbd7 (10...Qe7+–) 11.Qa7 e4 12.Na4 Ne5 (12...Kh8+–) 13.Be5 Nd7 14.Bg7 (better is 14.Bc7!? Qg5 15.Rb1 Ne5 16.Be5 Be5 17.Qb6 Bf5+–) 14...Kg7 15.Rd1 Ne5 (15...f5 16.d4 ed3 17.Rd3+–) 16.Qb6 Nc4 (16...Nd3 17.Bd3 Qd3 18.Qc5+–) 17.Bc4 (17.Qd8 Rd8 18.Bc4 Bb7+–) 17...Bg4 18.Qd8 Rd8 19.Rc1 f5 20.h3 Ra8 21.Nc5 Bh5 22.g4! fg4 23.Ne4 h6 24.Ng3 (24.Bd5 Ra7 25.b6 Rf7 26.Bf7 g3 27.Rc7 Kf8 28.b7 gf2 29.Kf2 Bg4 30.b8Q Bc8 31.Qc8 Kg7 32.Bd5) 24...Rc8 25.Nh5 Kh7 26.Nf6 (better is 26.Bg8! Kg8 27.Rc8 Kf7+–) 26...Kg7 27.Ng4 h5 28.Ne5 Rc5 29.d4 Rc7 30.Rg1 Kf6 31.Rg6 Kf5 32.Bd3 1–0. Groznov,Vladmir – Galvein,Prospero, ZN–2010–0–00918, 2010.

5.bc5 dc5 6.Nf3 Nc6 7.e3 e4 (7...Bd6 8.d3+=) 8.Ng5= Bg4 (8...Bf5!? 9.Qb1 Qe7+=) 9.Qb1+= e4 seems the pivot of the position 9...h6 (9...Qe7 10.Nce4 Nd7 11.f3+/–) 10.Nge4+/– Be7 (10...Ne4 11.Qe4 Be6 12.Rd1+/–) 11.Nf6+– Bf6 12.h3 (better is 12.Nd5 Bb2 13.Qb2+–) 12...0–0?? (better is 12...Bc8+/–) 13.hg4+– Re8 14.Bd3 Nb4 (14...Rb8 15.Bh7 Kf8 16.Bf5+–) 15.Bh7 Kf8 16.a3 Nc6 17.Be4 Na5 (17...Ne5 18.Nd5 (18.Bb7?! Rb8 19.Nd5 Rb7+–) 18...Ng4 19.Nf6 Nf6 20.Bb7+–) 18.Bd5 Nb3 (18...Qd7 19.Qf5 Red8 20.d3+–) 19.Ra2 Na5 20.Qh7 Qd7 21.g5! hg5 (21...Bg5 22.Qh8 Double attack; 21...hg5 22.Ne4 Double attack (22.Ne4 Decoy)) 22.Ne4 (better is 22.Bb7 Nb7 23.Nd5 Qd5 24.cd5+–) 22...Nb3 (22...Bb2 23.Rb2 Rac8+–) 23.Bf6 gf6 24.Qh8 Ke7 25.Qf6 Kf8 26.Rh8 1–0. pcmvr (2830) – nando (2170), net–chess.com, 2014.

4.Nc3 Nc6

5.a3 Be7 6.e3 a6 7.Nf3 0–0 8.Bd3 Re8 9.Qc2 g6 (9...Bg4 10.Nd5 h6 11.Nf6 Bf6 12.Be4=) 10.h4 (10.0–0 Bf8=) 10...Nh5 (10...Bg4 11.Be2=) 11.Nd5 Bf8 12.Ng5 Bg7 13.0–0–0 (13.Be4 Nf6=) 13...Ne7 14.Ne7 Re7 (14...Qe7 15.Be2 Bf5 16.e4=) 15.Be2= Nf6 16.d4 ed4 17.Bd4 Nd7 (better is 17...a5!?=) 18.h5 Bd4 19.Rd4 Nf6 20.hg6 hg6? (better is 20...fg6 21.Rf4 Rg7+/–) 21.Rdh4 Qd7? (21...Re8 22.Qc3 Nh5 23.Bh5 Qg5+–) 22.Rh8 Kg7 23.Qb2 (23.Qb2 Re5 24.f4+–) 1–0. De Visser,Arno – Antonisse, 1981.

5.a3 g6 6.e3 Bg7 7.g3 0–0 8.Bg2 Be6 9.Nd5 e4 10.Nf6 Bf6 11.Bf6 Qf6 12.Rc1 Ne5 13.Be4 Nc4 14.Bb7 Rab8 15.Bg2 Na3 16.Rc3 Nc4 17.Qa4 c5 (17...Nd2 18.Rc7 Nc4–/+) 18.b5?? (better is 18.bc5 Nd2 19.Qd4 Rb1 20.Ke2 Qd4 21.ed4+=) 18...Nd2!–/+ 19.Qc2? (19.Kd2 Qf2 Double attack) 19...Nb1!–+ 20.Rd3 (20.Qb1 Qc3 Deflection) 20...Rb5 21.Ne2 Rb2 22.Qc1 Rfb8 23.Nf4 (23.Rf1 Qd8 24.f4 Qa5 25.Kf2 Qb5–+) 23...g5 24.Ne2 (24.Rg1–+) 24...Re2! 25.Ke2 Rb2 0–1. onny555 (1885) – hanuman108 (1915), gameknot.com, 2013.

5.b5 Nd4 6.e3 Ne6 7.Nf3 Nc5 8.Be2 Nfe4 (8...e4 9.Nd4+=) 9.0–0 b6? (9...Nc3 10.Bc3 Be7 11.d4 ed4 12.ed4+/– (worse is 12.Qd4 Bf6 13.Qd2 Bc3 14.Qc3 0–0=)) 10.d3 (better is 10.Nd5 Nf6 11.d4 Nd5 12.cd5 (12.dc5?! Nf6+/–) 12...ed4 13.Nd4+–) 10...h6?? (better is 10...Nc3 11.Bc3 Be7+/–) 11.de4 Bb7 12.Qc2 Be7 13.Ba3 a6 14.ba6 Ba6 15.Bb2 (15.Rfd1 Bf6+–) 15...Bb7 16.h3 0–0 17.Nd2 Nd7 18.f4 ef4 19.ef4 (19.Rf4?! Bg5+–) 19...c6 20.Rf3 d5 (20...Nc5 21.Nb3+–) 21.cd5 cd5 22.ed5 (22.Nd5 Bc5 23.Kh1 Bd5 24.ed5 Nf6+–) 22...Bb4 (22...Nf6 23.Rg3 g6 24.Nc4 Bc5 25.Kh1+–) 23.Rg3 Bc3 (23...Bc5 24.Kh2 Bf2 25.Rf3+–) 24.Qc3 (better is 24.Bc3!? f6 25.Qg6 Rf7+–) 24...f6 25.Bc4 Nc5 26.Qe3 Re8 27.Qd4 Na4 28.Rb1 Nb2 29.Rb2 Kh8 30.Nf3 Bc8 31.Qb6 Qb6 32.Rb6 Bf5 33.Kh2 Re4 34.Bb3 Rf8 35.Rb7 g5 36.fg5 fg5 37.Nd2 Re2 38.Nc4 Be4 39.Nd6 Bd3 40.Rd3 Rff2 41.Rg3 Re1 42.Rf3 Rf3 43.gf3 h5 44.Nf7 Kg8 45.Ng5 1–0. ghorn (2230) – nando (2115), net–chess.com, 2015.

4.Nc3 Nbd7

5.e3 b6 6.Nf3 Bb7 7.Be2 Be7 8.0–0 0–0 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 b6 7.0–0 Bb7 8.Nc3 Nbd7).

5.f3 d5 6.Nd5 Nd5 7.cd5 Bb4 8.Qb3 =+.

5.f3 h5 6.e4= b6 7.Nb5 (7.Nge2 c5=) 7...Ba6 (7...a5 8.a3+=) 8.Qa4 Bb5 9.Qb5 a5 10.d4 ed4 11.Bd4 ab4 12.Qb4 d5 13.Qb1 de4 14.fe4 Nc5 15.Qb5 Nfd7 16.Nf3 Ne4 17.Be2 (17.Bd3 Ra5 18.Qb2 Nec5+=) 17...Nec5 18.0–0 Ra5 19.Qc6 (19.Qb2 Ne6+=) 19...Qa8 (19...Rh6 20.Qd5 c6 21.Qg5 Qg5 22.Ng5–+) 20.Ne5 (20.Qc7!? Ne6 21.Qg3=) 20...Qc6–/+ 21.Nc6 Ra4 22.Rfe1 Ne6 23.Kh1 Nf6 (23...Ndc5 24.Bf3–/+) 24.Rad1 Bb4 (24...Be7!?–/+) 25.Nb4= c5?? (better is 25...Rb4 26.Bf6 gf6+=) 26.Bf6+– gf6 27.Nc6 0–0 28.Ne7 Kg7 29.Nf5 (29.Bh5 Nd4+–) 29...Kg8 (29...Kg6 30.Bd3 Ra2 31.Ng3 Kh6 32.h4+–) 30.Rd3 (better is 30.Bh5 Ng7 31.Ne7 Kh8 32.Re4 Nh5 33.Rd5+–) 30...Rc4 (30...Nf4 31.Rg3 Kh7+–) 31.Rg3 Ng5 (31...Rg4 32.Bg4 hg4 33.Rg4 Kh7 34.Rh4 Kg8+–) 32.Bc4 (32.Bc4 Kh8 33.Rb3+–) 1–0. Pedersen,Birger – Nilsen,Line, Bymesterskap, 2001.

5.Nf3 Nb6 6.e3 Bg4 =.

5.Nf3 Be7=.

4.Nc3 Bf5

(--> 1.b4 e5 2.Bb2 d6 3.c4 Bf5 4.Nc3 Nf6).

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Bf5 5.Nc3).

4.c5 dc5–/+

5.Qa4 Nc6 6.bc5 Bc5 7.Be5 Bf2 8.Kf2 Ng4 9.Kg3 Nge5 10.Nh3 –+.

5.bc5 Bc5–+ 6.Be5 0–0 7.Bg3 c6 8.e3 Nbd7 9.Nc3 Re8 10.Bd3 Ne5–/+ 11.Be5 Re5 12.Qc2 g6 13.Nf3=+ Re8 14.0–0 Nd5 15.Nd5 Qd5 16.Bc4 Qf5 17.Qb3 b5 18.Bd3 Qf6 19.Qc2 Bf8 20.Nd4 Bd7= 21.Be4 Rac8 22.Nb3 Qe5 23.Bf3 Bd6 24.g3 Bf5 25.Qc1 Be4 26.d4= Qf5 27.Bg2 Bg2=+ 28.Kg2 Re6 29.Nd2 Rce8 30.Nf3 g5 31.Qc6+= Bg3 32.Qe6?? Re6 33.hg3?? Qe4–+ 34.Rac1 g4 35.Rc8 Kg7 36.Kg1 Qf3 37.Rfc1 Rh6 (37...Rh6 38.Rg8 Kg8 39.Rc8 Kg7 40.Rg8 Kg8 41.e4 Rh1#) 0–1. pinecrest1981 – maxs, Live Game Caissa's Web, 2005.

4.d3 d5

5.Be5 Bb4!? 6.Bc3 Bc3 7.Nc3 d4 –/+.

5.Be5 Nc6 6.Bf6 Qf6–/+ 7.Nd2 dc4 8.dc4 Bb4–+ 9.Ngf3 Bf5 10.e3 0–0–0 11.Be2 Bd2 12.Nd2 Rd2! 13.Qc1 Rhd8 14.Bf3 Rc2 15.Qb1 Qc3 16.Kf1 Rf2! 17.Kf2 Rd2 18.Kg3 Qe5 19.Kh4 Qf6 (19...Qf6 20.Kg3 Qg5 21.Bg4 Qg4#) 0–1. tightfist (2200) – whitehorse (2330), net–chess.com, 2008.

5.Be5 Ng4 6.Bc3= Qh4 (6...d4!? 7.Bd2 Nc6=) 7.g3+/– Qg5 (7...Qd8!? 8.cd5 Qd5+/–) 8.Nf3 Qe7 9.cd5 Ne3?? ( 9...Nf6 10.Qb3 c6 11.dc6 Nc6+–) 10.fe3 Qe3 11.Nbd2 1–0. Wall,Bill – Guest9437, internet, 2003.

4.d3 Be6

5.Nf3 Nbd7 6.Ng5 Bf5 7.e4 Bg6 8.Nd2 h6 (8...d5 9.a3 d4 10.Be2=) 9.Ngf3= Be7 10.Be2 0–0 11.0–0 a5 12.b5 b6 (12...Nc5 13.a3=) 13.Nh4 Bh7 14.Nf5 Bf5 15.ef5 Nc5 Black prepares a4 16.Qc2 a4 17.Bf3 Ra7 18.Rae1 Re8 19.Bc6 Rf8 20.a3 Nfd7 21.f4 Bf6 22.Re2 Nb8 23.Bd5 Re8 24.Rfe1 Rf8 25.fe5 de5 26.Nf3 Nbd7 27.d4 (27.Ne5 Ne5 28.Be5 Be5 29.Re5 Nd7+–) 27...ed4+/– 28.Nd4 Bd4 29.Bd4 Nf6 (29...Nb3!? 30.Bb2 Nf6+–) 30.Qc3+– Nd5 31.cd5 f6 32.Re7 Qd6 33.Bc5 bc5 34.Qc4 Raa8 35.R1e6 Qd8 36.d6 Kh8 37.dc7 (37.Qc5?! cd6 38.Qd6 Qa5+–) 37...Qd1 38.Re1 Qd6 39.Qe6 Qd3 40.Qd7 (40.Qd7 Qd7 41.Rd7+–) 1–0. marekt – Argento1960, ChessWorld.net, 2004. (=1.c4 Nf6 2.b4 e5 3.Bb2 d6 4.d3 Be6)

5.Nf3 Be7 6.e4 0–0 7.Be2 Nc6 8.0–0 Nb4–/+ 9.Ba3 c5 10.Bb4 cb4 11.h3 Qb6 12.a3 a5 13.ab4 ab4 14.Ra8 Ra8 15.Nbd2 Nh5 16.Nh2 Ng3 17.Re1–/+ Bh4 18.Ndf3 Ne2 19.Qe2–/+ b3?? 20.Rb1?? Ra2 21.Rb2 Rb2 22.Qb2 Bg3 23.Nd2?? Qf2 (23...Qf2 24.Kh1 Bh3 25.gh3 Qh2) 0–1. minn (2000) – mwojo (1745), net–chess.com, 2004.

4.d3 g6

5.Nc3 Bg7 6.Nf3 0–0 7.Qc2 (7.e4 Be6=) 7...Bg4 8.g3 (8.e3!?+=) 8...Nc6 9.Bg2 Nb4 10.Qb3 Na6 11.Qb7 Nc5 12.Qb4 Rb8 Black plans e4 13.Qa3 e4 14.Ne4 Nce4 15.de4 Rb2 16.Qb2 Ne4 17.Qc1 Bc3 18.Kf1 Ba1 19.Qa1 Bf3 20.Bf3 Nd2 21.Kg2 Nf3 22.ef3 Qd7 23.Rb1 c6 24.Qc3 Rd8 25.Qf6 Re8 26.Rb4 Qe7 27.Qb2 (27.Qe7 Re7 28.Rb8 Kg7=) 27...Qe5 28.Qd2 Kg7 29.Rb7 Re7 30.Re7 Qe7 31.Qd4 Kg8 32.a4 a5 (better is 32...f5!?=) 33.Qb6+/– Qd7 (33...Qe5!?+/–) 34.Qa5 d5 35.cd5 cd5 36.Qb5 Qd8 37.a5 d4 38.Qb6 Qd7?? (better is 38...Qd5+/–) 39.a6+– d3 40.a7 0–1. Deveque,Guillaume (1880) – Roger,Mehdi (2140), 7th LUCOPEN, 2016.

5.e3 Bg7=.

5.e4 Bg7 6.Be2 0–0 7.h3 (7.Nf3 Bg4=) 7...Na6 (7...Nc6 8.Qd2+=) 8.a3= c5 9.b5 Nc7 10.Bf3 (10.Nf3 a6=) 10...a6+= 11.a4 (11.b6 Ne6 12.Qb3 Nd7–/+) 11...Ne6 (11...b6 12.a5+=) 12.Ne2 ab5 (12...Ng5 13.Ng3+=) 13.cb5 (13.ab5 Ra1 14.Ba1 Ng5+=) 13...d5 (13...Ng5 14.Ng3–/+) 14.ed5 (14.Be5 de4 15.de4 Qd1 16.Kd1 Ne4 17.Bg7 Nf2 18.Ke1 Nh1 19.Bf8 Kf8 20.g4+–) 14...Nd5–/+ 15.0–0 Ndf4 16.Ra3 e4?? (better is 16...Qg5 17.Nf4 Nf4–/+ (17...ef4?! 18.Bg7 Kg7 19.a5=; 17...Qf4?! 18.Be4+=)) 17.Bg7+= ef3 18.Nf4 fg2 19.Ne6 (19.Bf8 gf1Q 20.Qf1 Nf4–+ (20...Nf8?! 21.Qg2–/+; 20...Qf8?! 21.Nd5–/+; 20...Kf8?! 21.Ne6 Be6 22.Qc1–/+)) 19...gf1Q–/+ 20.Qf1 Be6 21.Bf8 Qg5 (21...Kf8 22.Qg2–/+) 22.Qg2 Qc1 23.Qf1 (23.Kh2!? Rf8 24.Ra1–/+) 23...Qf1–+ 24.Kf1 Bh3 (worse is 24...Kf8 25.h4–/+; worse is 24...Rf8 25.Kg2+=) 25.Ke2 Kf8 (25...Re8 26.Kf3 Kf8 27.a5+=) 26.Nd2 (26.a5 Re8 27.Kd2 Bg4–/+) 26...Bd7 (26...Re8 27.Kf3–+) 27.Nc4 White prepares the advance a5 (27.Rc3 b6–/+) 27...h5 (27...Ke7 28.Nb6 Re8 29.Kf3–/+) 28.Nb6 (28.Nd6 b6–/+) 28...Re8–+ 29.Kf3 Bg4 (29...Ke7 30.Nd7 Kd7 31.a5+=) 30.Kg3 g5 31.a5 Bf5 32.a6 h4 33.Kh2 ba6 34.ba6 The passed pawn on a6 will quickly become a dangerous weapon 34...Bc8?? (34...Re2 35.Kg2 h3 36.Kg3 h2 37.Kh2 Rf2 38.Kg3 Re2+–) 35.Ra5 (35.a7 Bb7+/–) 35...Kg7 (better is 35...g4 36.a7 Bb7+/–) 36.Nc8 (better is 36.a7!? Bb7 37.Rc5+=) 36...Rc8= 37.a7 Ra8 38.Rc5 Ra7 39.Rg5 Kf6 40.Rg4 Ra3 41.Rf4 (41.Kh3 Rd3 42.Kh4 Ke5=) 41...Kg6 (41...Kg5 42.Rf7 Rd3 43.Rg7 Kf5 44.f3=) 42.d4= f5 (42...Rd3 43.Rh4 f5 44.f3 Rf3 45.Rh8=) 43.Rh4 ˝–˝. Andersson,Lars H – Dopper,Johan, corr SOK–93–95, 1993.

5.Nf3 Bg7 6.Qc2 0–0 7.e3 Re8 8.Be2 Be6 9.0–0 Nbd7 10.Nbd2 Rc8 11.a4 c5 12.b5 d5 13.d4 cd4 14.ed4 Bf5 15.Qb3 Nb6 16.Ne5+= dc4 17.Bc4 Nc4 18.Nec4 Nd5 19.Rfe1 Be6 20.Qg3 Nb4 21.Ne3?? Bh6 22.Rac1 Nd3=+ 23.Rc8 Qc8 24.Rb1? Nb2 25.Ndf1? Be3 26.Ne3 Na4 27.h4 Qd8 28.d5 (28.d5 Nc3 29.Rb2 Bd5 30.Rd2–+). alaamattar (2145) – gbsrao (2190), net–chess.com, 2006.

5.Nf3 Bg7 6.Nbd2 0–0 7.g3 Nbd7 8.Bg2 c6 9.a3 Re8 10.0–0 Nf8 11.Ng5 h6 12.Nge4 Ne4 13.Ne4 f5 14.Nd2 Ne6 15.Qb3 Kh7 16.e3 Qc7 17.f4 Nf8 18.Rae1 Be6 19.Qc2 Rad8 20.e4 Qd7 21.ef5 Bf5 22.fe5 de5 (worse is 22...Be5 23.Ne4+=) 23.Be4 Be4 24.Ne4 Qd3 25.Qd3 Rd3 26.Rf7 Ne6?? (better is 26...Nd7=) 27.Nf6+– (27.Nf6 Kh8 28.Ne8+–) 1–0. Feng,Jason – Znak,Nicholas, RF–2008–0–00012, 2008.

4.d4 Be7

5.Qc2 ed4–/+ 6.Bd4 Nc6 7.Bc3 0–0 (7...Be6 8.e4=+) 8.Nf3 Re8 (8...Ne5 9.Nbd2=+) 9.b5= Bg4?? ( 9...Nb8=) 10.bc6+– bc6 11.Nbd2 d5 12.e3 Bd6 13.Be2 Ne4 14.cd5 Nc3 15.Qc3 cd5 16.0–0 Bf3 17.Nf3 Be7 18.Rac1 Bd6 19.Rfd1 Rc8 20.Rd5 Qe7?? 21.Rcd1 Qe6 22.Rg5 g6 23.a4 Be7 24.Re5 Qa6 25.Ba6 Rb8 26.Bb5 Red8 27.Rd8 Bd8 28.Re8 1–0. wlittle (1710) – darkprincess (1795), net–chess.com, 2001.

5.de5 de5 6.Qd8 Bd8 (6...Kd8!? 7.a3 Be6=) 7.Be5+= 0–0 8.b5 Nbd7 9.Bc3 Nb6 10.e3 Be6 11.c5 (11.Nd2!?+/–) 11...Nbd7 12.Nf3 Nc5 13.Nbd2 b6 14.Be2 Re8 15.0–0 Na4 16.Bd4 Be7 17.Ne5 Rad8 (17...Bb4 18.Ndf3+=) 18.Nc6+/– Ra8 19.Bf3 Bd5?? (better is 19...Nd5+=) 20.Ne7+– Re7 21.Bf6 gf6 (21...Rd7 22.Ne4 a6 23.ba6+–) 22.Bd5 Rd8 23.Ne4 f5 24.Nf6 Kg7 25.Nh5 Kh6 26.Nf4 Nc3 27.Bc6 Re5 28.a4 1–0. Rush,Bradley – Simmons,Ernest, ZN–2012–0–01985, 2012.

4.e3 a5

5.a3 ab4 6.ab4 Ra1 7.Ba1 b6 (7...Bf5 8.Bc3+=) 8.Qb3 (8.d4 Be7=) 8...Be6 9.Nc3 Nbd7 10.Nf3 h6 (10...Be7 11.d4=) 11.d4 ed4 (11...Bf5 12.Be2+=) 12.Nd4+= Qa8 13.Bb2 Be7 14.Ne6 (14.Ncb5 Qb7+=) 14...fe6 15.Nb5 Qb7 16.Nd4 Kf7 17.c5 (17.f3+=) 17...Nf8 (17...bc5 18.Qe6 Kf8+=) 18.c6+/– Qc8 19.Bd3 d5 20.0–0 N8h7 (20...Bd6 21.f4+/–) 21.f4+– Rd8 22.f5 (22.Bh7 Nh7 23.f5 Ng5 24.fe6 Kg8+–) 22...e5 (22...Nf8+–) 23.Ne6 Rd6 (23...e4 24.Nd8 Qd8 25.Be2+–) 24.Be5 Rc6 25.b5 Re6 26.fe6 Qe6 27.Bd4 (better is 27.Qc3!? g6 28.Qc7 Kg7+–) 27...Ng5 28.Qc2 (28.Bf5!? Qd6+–) 28...Qd6 29.Rf4 (29.Rc1 Ne6+/–) 29...Kg8 30.Qa2 (30.Rf5 Ng4 31.g3 g6+/–) 30...Ne6 31.Rf1 Ng4 (31...c5 32.bc6! Qc6 33.Qa7+/–) 32.g3 (better is 32.Qa8 Bf8 33.g3 Nd4 34.ed4+–) 32...Qb4?? (better is 32...Bf6+/–) 33.Qa8+– Nf8 (33...Bf8 34.Qd5 Qe7+–) 34.Qd5 Kh8 35.Bc4 (35.Bc4 Qc4 36.Qc4+–) 1–0. Gross – Gottlieb, tt BVK1–NW3, 1984.

5.ba5 Ra5 6.Nf3 Bg4 7.Nc3 e4 8.h3 ef3 (better is 8...Bh5!? 9.g4 Bg6=) 9.hg4+= fg2 10.Bg2 Nc6 11.f4 Be7 (11...h5!? 12.g5 Ng4+/–) 12.g5 Nd7 13.Nd5 f6 14.Qc2 fg5? (better is 14...Nf8+–) 15.Bg7 (15.Rh7?! Rh7 16.Qh7 Nf8+–) 15...Rg8 (15...Rf8 16.Rh7 Rf7+–) 16.Qh7 Nf6 (16...Rg7 17.Qg7 Nf8+–) 17.Nf6 Bf6 18.Qg8 Kd7 (18...Ke7 19.Bf6 Kf6 20.Rh6 Ke7 21.Rh7 Kf6 22.Qf7) 19.Bh3 1–0. Janek – Kevin, internet free game, 2016.

5.b5 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 e5 5.c4).

5.Bc3 ab4 6.Bb4 Nc6 7.Ba3 Be6 8.Nf3 Bf5 9.Nc3?? Ra3–+ 10.e4 Be6 11.Bd3 Be7 12.0–0 0–0 13.Qc1 Qa8 14.Nb5 Rd3 15.Nc7 Qa3 16.Qd1 Bc4 17.Re1 Nd4 18.Ng5 h6 19.Nh3 Rh3 20.gh3 Qh3 21.Re3 Qg4 22.Kh1 Qd1 23.Rd1 Rc8 24.Nd5 Bd5 25.ed5 Nd5 26.Rg3 Nf5 27.Rb3 Rc2 28.a4 Nf4 29.Rb7 Ra2 30.Ra7 Nd3 31.Kg1 Bh4 32.Rb1 Rd2 33.Rb8 Kh7 34.Rf7 Bf2 35.Kh1 Kg6 36.Rfb7 Rd1 37.Kg2 Nh4 38.Kh3 Nf4 (39.Kg4 Rg1#) 0–1. hercules53 – johnny, Live Game Caissa's Web, 2004.

4.e3 Ne4

5.d3 Nf6 6.Nf3 d5 (6...Nc6 7.b5 Ne7 8.Be2=) 7.Be5 (7.a3!?+=) 7...Bb4= 8.Bc3 Bc3 (8...Nc6 9.Bb4 Nb4 10.Qa4 Nc6 11.d4=) 9.Nc3 dc4 (9...0–0 10.cd5 Nd5 11.Nd5 Qd5 12.d4=) 10.Qa4 (10.dc4 Qe7=) 10...Nc6 11.Ne5 (11.dc4 0–0=) 11...Bd7 (11...cd3 12.Rd1 Bd7 13.Nd7 Nd7 14.Bd3+=) 12.Nd7= Qd7 (12...Nd7 13.Qc4 0–0 14.Be2=) 13.Qc4 (13.d4=) 13...0–0–0 (13...0–0 14.d4=) 14.d4 (14.Rb1 Ne5 15.Qb4 Qc6+=) 14...Rhe8 15.Be2 Qe6 16.0–0 (16.Qe6 Re6 17.Rb1+=) 16...Nd5 (16...Qc4!? 17.Bc4 Re7=) 17.Nd5+/– Qd5 18.Qd5 (18.Qc2!?+/–) 18...Rd5+= 19.Bf3 (19.Rfc1 Ra5 20.Kf1 f5+=) 19...Rd6 20.Rab1 Na5 (20...Nd8 21.Rb3+=) 21.Rfc1 f5 (better is 21...b6!?+=) 22.Rc5 (22.Rb5 b6 23.Rf5 Kd8+–) 22...b6 23.Rf5 Nc4 (better is 23...Kd8!?+–) 24.Rf7 Rg6 (24...Nd2 25.Bg4 Kd8 26.Rd1+–) 25.Bh5 (25.Rc1 b5+–) 25...Rg5 26.Rc7! Kc7 27.Be8 Nd6 (27...Ra5 28.Rc1 Kd8 29.Rc4 Ke8 30.Rc2+–) 28.Ba4 (28.Rc1 Kd8 29.Bc6 Ra5+–) 28...Ra5 1–0. Brzoza,Miroslaw – Zabrocki, corr Poland, 1980.

5.Nf3 a5 6.b5 Nf6=.

5.Nf3 Nc6 6.b5 Ne7 7.Be2=.

5.Nf3 Bg4 6.Be2 Nd7 (6...Be7 7.d4=) 7.0–0 Nef6 (7...a5 8.b5+=) 8.d4 (8.Nc3 c6+=) 8...ed4 (8...e4 9.Nfd2 Be2 10.Qe2=) 9.Nfd2 (better is 9.Nd4!? Be2 10.Qe2+=) 9...Be2+= 10.Qe2 d5 (10...de3 11.Qe3 Qe7 12.Qb3+=) 11.cd5 (11.ed4 Qe7 12.Re1 Qe2 13.Re2 Kd8+=) 11...Bb4 (11...Nd5 12.ed4 Be7 13.Nc3 Nb4 14.Rfe1=) 12.Qb5 (12.Bd4!? 0–0 13.Qb5 Bd2 14.Nd2=) 12...Bd2+= 13.Nd2 0–0 (13...a6 14.Qd3 (14.Qb7? Rb8 15.Qa6 Rb2–+) 14...de3 15.Qe3 Qe7 16.Qb3=) 14.Rac1 (14.Bd4!? Nb6 15.Qb2+=) 14...a6 15.Qb3 (15.Qb7? Rb8 16.Qa6 Rb2–+) 15...Nb6 (15...de3 16.fe3 Re8 17.Bd4+=) 16.Qc2 (better is 16.e4!? Re8 17.Rfe1+=) 16...Nbd5 (better is 16...de3 17.Bf6 Qf6 18.fe3 Qe5–/+) 17.Ne4? (17.Bd4 b6+=) 17...Nb4 (17...Ne4 18.Qe4 de3 19.fe3–+) 18.Qb1? (better is 18.Nf6 Qf6 19.Qb3=) 18...Ne4–+ 19.Qe4 Re8 (19...Na2 20.Rcd1 c5 21.ed4 Qb6–/+) 20.Qb1 (20.Qg4 Na2 21.Bd4 g6–/+) 20...Re6 (20...de3 21.fe3 Qe7 22.Rf3–+) 21.Ba3? (21.Bd4 Nc6+=) 21...Rb6 (21...Nd5!? 22.ed4 Nf4–+) 22.Bb4 a5 23.Rc4 (23.Rfd1 Rb4 24.Qc2 b5–/+) 23...c5 (23...ab4?! 24.Rd1+=) 24.Rc5 (24.Bc5 Exploits the pin 24...Rb1) 24...ab4 (24...de3 25.fe3 Qe8 26.Qc2 Rb4 27.Rc7+=) 25.Rfc1 (25.Rd1 Rd6 26.e4 b6=) 25...b3 (25...de3!? 26.fe3 Rd6–/+) 26.ab3+= g6 (26...de3 27.fe3 Re6 28.R1c3+=) 27.g3 (27.e4 Qf6+=) 27...Rba6 (27...de3 28.fe3 Qd2 29.Rc8 Rc8 30.Rc8 Kg7 31.Qa1 Rf6–+) 28.Qe4 (better is 28.e4=) 28...b6? (28...de3 29.Qe3 b6 30.Rc7=) 29.Rc7 (29.Rd5 Qb8 30.Rd4 b5+/–) 29...Ra1 (better is 29...de3 30.Qe3 Ra1=) 30.Ra1?? (better is 30.Qd4 Qc7 31.Ra1 Ra1 32.Qa1+/–) 30...Ra1–+ 31.Kg2 Qc7 32.b4 (32.Qd4 Rc1 33.Qe4–+) 32...Kf8 (32...Kf8 33.Qd4 Qc6 34.e4 Ra4–+; better is 32...de3 33.fe3 Ra2 34.Kh3–+) 0–1. Hasler,Ulrich – Elsen, corr EU–ch ICCF, 1966.

4.e3 Qe7

5.Nf3 c6 6.a4 (6.Be2 e4 7.Nd4 d5=) 6...Bg4 (6...a5 7.b5=) 7.Be2 (7.h3 Bf5=) 7...a6 (7...Bf3 8.Bf3 d5 9.cd5=) 8.Nc3 g6 (8...e4 9.Nd4 Be2 10.Nce2=) 9.b5 (9.0–0 Bg7+=) 9...ab5 10.ab5 Ra1 11.Qa1 Bg7 12.h3 Be6 13.c5 (13.d4 ed4 14.Nd4 0–0+=) 13...0–0 (13...dc5 14.Ne5 0–0 15.bc6=) 14.cd6+= Qd6 15.0–0 (15.bc6 Qc6 16.0–0 Nbd7+=) 15...c5 16.d4 (16.Na4 Nfd7+=) 16...ed4= (16...cd4 17.Ba3 Qc7 18.Bf8 dc3 19.Bg7 Kg7 20.Rc1+–) 17.ed4 Rc8 (17...Re8 18.dc5 Qc5 19.Rd1=) 18.Rd1 b6? (better is 18...c4!?=) 19.dc5+/– Qc5 20.Na4 Qc2 (20...Qe7 21.Nb6 Re8 22.Re1+–) 21.Nd4 Qe4 22.Bf3 Qh4 23.Nb6 (23.Ne6 fe6 24.Nb6 Re8+–) 23...Re8 24.Ne6 fe6 25.Na8 (25.Be5 Qg5+–) 25...Rf8 26.Qa2 Re8?? (26...Nd5 27.Bg7 Kg7 28.Qb2 Qf6 29.Qf6 Kf6 30.Bd5 ed5+–) 27.Nc7 Re7 28.Rd8 Kf7 29.b6 (better is 29.Ne6 Re6 30.Rd6+–) 29...Nbd7 30.Bf6 Qf6 31.b7 Nb8 (31...Qe5 32.Qb1+–) 32.Nb5 (32.Rb8 Rc7 33.Rc8 Qc3+–) 32...Qf4 (32...Rd7 33.Rb8 Qe5 34.Re8 Rb7 35.Re6 (worse is 35.Bb7 Ke8 36.Bc6 Kf7+–) 35...Qa1 36.Qa1 Ba1 37.Ra6 Rb5 38.Ra1+–) 33.Nd6 Kf6 34.Ne8 (34.Qc4 Qc4 35.Nc4 Rc7 36.Rb8 Rc4+–) 34...Re8 (34...Kf7 35.Ng7 Kg7 36.Qb2 Kh6+–) 35.Re8 Qc1 36.Kh2 Qf4 37.g3 Qf3 38.Qe6 (38.Rb8 Kf7 39.Re8 Qc6+–) 38...Kg5 39.Qe3 (39.Rb8?! Qf2 40.Kh1 Qf3 41.Kh2 Qf2 42.Kh1 Qf3 43.Kh2 Qf2=) 39...Qe3 40.fe3 Nc6 41.Rc8 Be5 (41...Nb8 42.Rb8 Be5 43.Re8+–) 42.Rc6 Bb8 43.Rc8 Be5 (43...Bd6+–) 44.Rc5 Kf6 45.Re5! Ke5 46.b8Q (46.b8Q Ke4 47.Qb7 Ke3 48.Qh7+–) 1–0. Chirpii,Alexandru – Mosanu,Lorina, Centrocoop June op–A, 1999.

5.Nf3 e4 6.Nd4=.

5.Nf3 h6 6.Nc3 c6 7.Be2 Bg4 8.0–0 Nbd7 9.d4 g5 10.d5 c5 11.bc5 Nc5 12.h3 1–0. cristero (2310) – owenbird, net–chess.com, 2015.

4.e3 Be7

5.Nc3 0–0 6.Nf3 Bg4 7.Be2 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 Bg4 6.Be2 0–0 7.Nc3).

5.d4 =+.

5.Nf3 Be6 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be6 5.Nf3 Be7).

4.e3 Ng4

5.a3 A) 5...a5 A1) 6.d4 ab4 7.Be2 Nf6 8.ab4 Ra1 9.Ba1 ed4 10.ed4 d5 11.c5 Be7=; A2) 6.Be2 Nf6 7.Qa4 Bd7 8.b5 Be7 9.d3 Bf5 10.Nf3 Nbd7 11.0–0 0–0=; A3) 6.b5 Qh4 (6...Be7 7.d4 ed4 8.Be2 Nf6 9.Bd4 Bf5 10.Nf3 0–0 11.0–0 Ne4+=; 6...Nf6 7.d4 Nbd7 8.Nd2 ed4 9.Bd4 Be7 10.Ngf3 0–0 11.Be2 Re8=; 6...Be6 7.Be2 Qh4 8.g3 Qg5 9.d4 ed4 10.Nf3 Qf6 11.Bd4 Ne5+=) 7.Qe2 e4 8.Nc3 Ne5 9.Qd1 Bf5 10.Nd5 Qd8 11.Bd4 Nbd7+=; A4) 6.Nf3 ab4 (6...e4 7.Nd4 Qh4 8.g3 Qf6 9.f3 ef3 10.Qf3 Be7 11.Nc3 Qf3=) 7.ab4 Ra1 8.Ba1 e4 9.Nd4 Qh4 10.g3 Qe7 11.Bg2 Na6=; B) 5...Nc6 B1) 6.Be2 Nf6 (6...Qh4 7.g3 Qg5 8.Nc3 Qf5 9.f3 Nf6 10.Nd5 Nd5 11.cd5 Ne7+=) 7.d4 e4 8.d5 Ne5 9.f4 Neg4 10.Bd4 Nh6 11.Qc2 Bf5=; B2) 6.d4 Qh4 (6...ed4 7.ed4 Be7 8.Be2 Qd7 9.Nf3 0–0 10.h3 Nf6 11.d5 Nd8+=; 6...Qf6 7.Qe2 Bf5 8.h3 Nh6 9.d5 Ne7 10.Nc3 Ng6 11.c5 a6=; 6...e4) 7.Qe2 e4 8.Nc3 Bf5 9.Nd5 0–0–0 10.Nh3 Kb8 11.b5 Ne7=; B3) 6.b5 Nb8 (6...Ne7 7.d4 Ng6 8.Be2 Qh4 9.g3 Qg5 10.e4 ed4 11.Bd4 c5+=) 7.Be2 Qh4 8.g3 Qg5 9.Nf3 Qf5 10.h3 Nf6 11.Nc3 h6=; B4) 6.Nc3 Be6 (6...Be7 7.Be2 Nf6 8.Nf3 Bf5 9.d4 e4 10.Nd2 0–0 11.Qc2 d5+/–; 6...Bf5 7.Nf3 Nf6 8.d4 ed4 9.ed4 Be7 10.Be2 0–0 11.0–0 Re8+=; 6...Nf6 7.Be2 Bf5 8.b5 Nb8 9.Nf3 Be7 10.0–0 0–0 11.d4 e4+=) 7.Nf3 Nf6 8.d4 ed4 9.Nd4 Nd4 10.Qd4 a5 11.Nd5 Be7=; C) 5...Bd7 C1) 6.Nc3 Qh4 (6...a5 7.Be2 ab4 8.ab4 Ra1 9.Ba1 Nf6 10.Nf3 e4 11.Ng5 Qe7+=; 6...Nf6 7.Be2 Be7 8.Nf3 Bf5 9.d4 e4 10.Nd2 a5 11.b5 Qd7+/–; 6...Be7 7.Be2 Nf6 8.Nf3 a5 9.0–0 ab4 10.ab4 Ra1 11.Qa1 c6+=; 6...Nc6 7.Nf3 Be7 8.Be2 0–0 9.0–0 Bf6 10.h3 Nh6 11.b5 Ne7+=; 6...Be6 7.Be2 Qh4 8.g3 Qg5 9.Nd5 Bd5 10.cd5 Nf6 11.Qc2 Nd5+=) 7.Qe2 Qd8 8.d4 Be7 9.Nd5 e4 10.Qc2 c6 11.Ne7 Qe7=; C2) 6.d4 Qf6 (6...e4 7.Qc2 f5 8.Nc3 c6 9.Be2 Qh4 10.g3 Qg5 11.Nh3 Qe7+=; 6...a5 7.b5 e4 8.Nc3 Nf6 9.Qc2 Bf5 10.Nge2 Qe7 11.Ng3 Bg6+=; 6...ed4 7.ed4 Be7 8.Bd3 d5 9.cd5 a5 10.b5 Nf6 11.Nc3 0–0+=; 6...Qh4 7.Qe2 e4 8.Nc3 Nf6 9.g3 Qh6 10.Bg2 Qg6 11.f3 ef3+=; 6...Nc6) 7.Nh3 Nc6 8.d5 Ne7 9.Nc3 Qh4 10.g3 Qh6 11.e4 0–0–0=; C3) 6.Be2 Qh4 (6...Nf6; 6...Qg5) 7.g3 Qg5 8.Nf3 Qf5 9.h3 Nf6 10.d3 Qg6 11.Nc3 Be7=; C4) 6.Nf3; C5) 6.h3 Nf6 7.d4 e4 8.Nc3 a5 9.b5 Bf5 10.Nge2 Qd7 11.g4 Bg6+/–; D) 5...Be7 6.Be2 (6.d4 ed4 7.ed4 0–0 8.Be2 Nf6 9.Nf3 d5 10.c5 Re8 11.0–0 a5=) 6...Nf6 7.d4 ed4 8.ed4 d5 9.Nf3 a5 10.c5 ab4 11.ab4 Ra1=; E) 5...Be6 E1) 6.Be2 Nf6 (6...Qh4 7.g3 Qg5 8.d4 e4 9.Nh3 Qf5 10.Nf4 Bd7 11.Nc3 Nf6+=; 6...f5 7.d4 ed4 8.ed4 d5 9.Nc3 Nf6 10.c5 a5 11.Nf3 Be7+=) 7.Nf3 Be7 8.0–0 0–0 9.d4 e4 10.Ng5 a5 11.Ne6 fe6+=; E2) 6.Nf3 a5 7.d4 ab4 8.d5 Bf5 9.ab4 Na6 10.Ra4 Be7 11.Be2 0–0=; E3) 6.h3 Nh6 (6...Nf6 7.Nf3 Be7 8.d4 e4 9.d5 Bd7 10.Nfd2 a5 11.Nc3 Bf5+/–) 7.Nf3 Nc6 8.b5 Nb8 9.d4 e4 10.Nfd2 f5 11.d5 Bd7+=; F) 5...Nf6 F1) 6.d4 ed4 (6...e4; 6...Nbd7) 7.ed4 Qe7 8.Qe2 Bg4 9.Qe7 Be7 10.Be2 Be2 11.Ne2 d5=; F2) 6.Nf3 Be7 (6...e4) 7.Nc3 a5 8.Be2 ab4 9.ab4 Ra1 10.Qa1 Bf5 11.0–0 0–0=; F3) 6.Ne2 Be6 (6...Bg4 7.d4 ed4 8.f3 Bd7 9.Nd4 a5 10.b5 Qe7 11.Kf2 g6+=; 6...Be7 7.d4 Nbd7 8.Ng3 a5 9.Be2 0–0 10.0–0 Re8 11.Nf5 Nb6=) 7.d4 a5 8.Nd2 Be7 9.d5 Bd7 10.f4 Na6 11.Qb3 0–0=; F4) 6.Nc3 Be7 (6...a5; 6...Nc6) 7.Nf3 a5 8.Be2 ab4 9.ab4 Ra1 10.Qa1 Bf5 11.0–0 0–0=; F5) 6.Be2 a5 (6...Be7 7.d4 ed4 8.ed4 a5 9.d5 0–0 10.Nf3 ab4 11.ab4 Ra1=) 7.Qa4 Bd7 8.b5 Be7 9.Nc3 Bf5 10.d4 Nbd7 11.Nf3 Nb6=.

5.d4 ed4 A) 6.Bd4 c5 7.Bb2 cb4 8.Nf3 Nc6 9.Be2 Nge5 10.0–0 Be7 11.Nd4 0–0+=; B) 6.ed4 d5 7.a3 Qe7 8.Qe2 Qe2 9.Be2 dc4 10.Bc4 Bd6 11.Nf3 0–0=; C) 6.Qd4 Nc6 (6...Be6 7.Nf3 Nc6 8.Qc3 Qe7 9.Be2 Qf6 10.b5 Nce5 11.h3 Qh6+=) 7.Qc3 a5 8.b5 Nce5 9.Be2 Qh4 10.g3 Qh6 11.h3 Bf5+=; D) 6.h3 Nf6 7.ed4 Be7 8.Nf3 0–0 9.Bd3 d5 10.c5 a5 11.ba5 Nc6=.

5.Be2 A) 5...Nh6 A1) 6.d3 Qg5 (6...Be7 7.Nf3 0–0 8.0–0 a5 9.b5 Be6 10.d4 e4 11.Nfd2 f5+=; 6...Nc6 7.b5 Ne7 8.Nf3 a6 9.0–0 ab5 10.cb5 f6 11.a4 d5+=; 6...a5 7.b5 Be7 8.Nf3 0–0 9.Nc3 Nd7 10.0–0 Re8 11.Re1 Nf6+=; 6...Na6 7.b5 Nc5 8.d4 ed4 9.ed4 Ne4 10.Nf3 d5 11.0–0 Be7+=; 6...a6 7.Nf3 Nc6 8.a3 Be7 9.d4 ed4 10.0–0 0–0 11.ed4 Re8+=) 7.Bf3 c6 8.Nc3 Be7 9.Nge2 0–0 10.0–0 Ng4 11.d4 Re8=; A2) 6.d4 ed4 7.Bd4 Nc6 8.Bc3 Bf5 9.Nf3 Qe7 10.b5 Nd8 11.Nd4 Bg6+=; B) 5...Qd7 B1) 6.d4 ed4 (6...Nf6 7.a3 e4 8.d5 Be7 9.Nh3 a5 10.Nd2 0–0 11.0–0 Re8+=; 6...e4 7.d5 a5 8.b5 Qf5 9.Nh3 Nf6 10.0–0 Be7 11.Nc3 0–0+=) 7.h3 Nf6 8.Bd4 Be7 9.Nf3 0–0 10.b5 c5 11.Bc3 d5=; B2) 6.a3 Qf5 (6...a5 7.Nf3 ab4 8.ab4 Ra1 9.Ba1 Nf6 10.0–0 Be7 11.Nc3 0–0=; 6...Nc6 7.Nc3 Qf5 8.Nh3 Nf6 9.d4 Bd7 10.Nb5 Kd8 11.d5 Ne7+=; 6...Be7 7.d4 ed4 8.Bd4 0–0 9.Nf3 Nc6 10.Nc3 a5 11.Nd5 Nd4=; 6...Nf6) 7.Nh3 Qg6 8.Bf3 Nf6 9.d3 c6 10.b5 Bf5 11.bc6 Nc6=; B3) 6.Nc3 Be7 7.Nd5 Nf6 8.Ne7 Qe7 9.a3 0–0 10.d4 a5 11.Nf3 e4=; B4) 6.Nh3 Nf6 7.0–0 Qe7 8.Ng5 d5 9.c5 e4 10.d3 h6 11.Nh3 Bh3+=; B5) 6.Bc3 Be7 7.Nh3 0–0 8.0–0 Re8 9.a3 Nf6 10.d4 ed4 11.Qd4 Nc6=; B6) 6.Nf3 a5 (6...Nf6 7.0–0 Be7 8.d4 e4 9.Nfd2 d5 10.b5 dc4 11.Nc3 a6+=; 6...Be7 7.0–0 0–0 8.d4 a5 9.b5 ed4 10.Bd4 Re8 11.Nc3 c5+=; 6...e4 7.Nd4 Nf6 8.d3 d5 9.a3 a5 10.b5 dc4 11.de4 Ne4+=; 6...Nc6 7.b5 Nd8 8.d4 e4 9.Nfd2 Nf6 10.Nc3 Qe7 11.0–0 Bf5+=; 6...Qf5 7.0–0 Nc6 8.b5 Ne7 9.d4 e4 10.Nfd2 Nf6 11.Nc3 Qg6+=) 7.b5 Nf6 8.d4 e4 9.Nfd2 Qf5 10.0–0 Qg5 11.Kh1 Be7=; C) 5...Qh4 6.g3 Qg5 7.Nc3 Nf6 8.f4 Qf5 9.Nf3 Na6 10.a3 e4 11.Nd4 Qh3=.

5.Nf3 A) 5...a5 A1) 6.a3 ab4 (6...e4 7.Nd4 Qh4 8.g3 Qf6 9.f3 ef3 10.Qf3 Be7 11.Nc3 Qf3=) 7.ab4 Ra1 8.Ba1 e4 9.Nd4 Qh4 10.g3 Qe7 11.Bg2 Na6=; A2) 6.b5 e4 7.Nd4 Qh4 8.g3 Qf6 9.f3 ef3 10.Qf3 Be7 11.Nc3 Qf3=; A3) 6.h3 Nf6 (6...e4 7.hg4 ef3 8.Qf3 ab4 9.Rh7 Rh7 10.Qe4 Be6 11.Qh7 g6+=) 7.b5 Be7 8.Be2 e4 9.Nd4 c5 10.bc6 bc6 11.Nc3 c5=; B) 5...Na6 6.d4 (6.b5; 6.h3; 6.a3) 6...ed4 (6...e4 7.Nfd2 Qh4 8.g3 Qe7 9.Nc3 Bf5 10.Qc2 c6 11.a3 Nf6+/–) 7.ed4 Bf5 8.d5 Nf6 9.a3 Be7 10.Bd3 Bd3 11.Qd3 0–0+/–; C) 5...Nc6 C1) 6.d4 ed4 (6...e4 7.Nfd2 d5 8.cd5 Nb4 9.Ne4 Nd5 10.Qb3 Nb6 11.Qc2 Bf5=; 6...Bf5) 7.ed4 Bf5 8.Nc3 Be7 9.d5 Nce5 10.Nd4 Bd7 11.Be2 a5=; C2) 6.b5 Nb8 (6...Ne7 7.Be2 Nf6 8.Nc3 a6 9.ba6 Ra6 10.d4 Ng6 11.0–0 Be7+=) 7.Nc3 Nf6 8.Be2 Bf5 9.0–0 a6 10.d4 e4 11.ba6 ef3=; D) 5...Be7 D1) 6.d4 0–0 (6...e4 7.Nfd2 Nf6 8.Nc3 Bf5 9.Qc2 d5 10.cd5 Nd5 11.Nd5 Qd5+=) 7.Bd3 f5 8.de5 Ne5 9.a3 a5 10.0–0 Be6 11.Qe2 Nd3=; D2) 6.Bd3 Nc6 (6...Be6 7.0–0 0–0 8.Be2 a5 9.b5 a4 10.d4 e4 11.Nfd2 Nf6=; 6...Nf6 7.Nc3 Nc6 8.b5 Na5 9.Nd5 a6 10.ba6 Ra6 11.Ne7 Qe7=) 7.Qa4 Nf6 8.b5 Nb8 9.Be2 Bg4 10.0–0 Nbd7 11.h3 Bf5=; D3) 6.Be2 Nf6 (6...0–0 7.0–0 a5 8.b5 Nf6 9.Nc3 Nbd7 10.d4 Re8 11.a3 ed4+=; 6...a5 7.b5 0–0 8.d4 ed4 9.Nd4 Ne5 10.0–0 Re8 11.Nc3 Nbd7=; 6...e4 7.Nd4 Nf6 8.d3 0–0 9.de4 a5 10.a3 ab4 11.ab4 Ra1+=; 6...Be6 7.0–0 0–0 8.d4 a5 9.ba5 Bf6 10.Qb3 Nc6 11.h3 Na5+=; 6...Bf5 7.0–0 Nf6 8.Nc3 0–0 9.a3 a5 10.b5 Nbd7 11.d4 c6=) 7.Nc3 0–0 8.0–0 Bf5 9.a3 a5 10.b5 Nbd7 11.d4 c6=; E) 5...Bf5 E1) 6.Nc3 Nd7 (6...a5 7.b5 Be7 8.d4 a4 9.h3 a3 10.Bc1 Nf6 11.de5 de5+/–; 6...Be7 7.Be2 a5 8.b5 Nf6 9.d4 Nbd7 10.Nh4 ed4 11.Nf5 dc3+/–; 6...c6 7.Be2 d5 8.h3 Nf6 9.cd5 Bb4 10.Qb3 Qe7 11.Ne5 Bc3+=; 6...Nc6 7.b5 Ne7 8.d4 Ng6 9.Be2 Nf6 10.0–0 Be7 11.Nd5 Nd5=; 6...Nf6 7.a3 Be7 8.Be2 0–0 9.0–0 a5 10.b5 Nbd7 11.d4 c6=) 7.Be2 Ngf6 8.0–0 a5 9.a3 Be7 10.d4 c6 11.Ng5 h6=; E2) 6.Be2 Nc6 7.b5 Nb8 8.d4 e4 9.Nfd2 Nf6 10.0–0 Nbd7 11.f3 ef3+=; F) 5...e4 F1) 6.Nd4 Qh4 (6...Na6) 7.g3 Qf6 8.f3 ef3 9.Qf3 Qf3 10.Nf3 Nc6 11.a3 Nge5=; F2) 6.Ng1 Nc6) 7.Nc3 Nf6 8.Nd5 Be7 9.d3 Bf5 10.Ne2 ed3 11.Ng3 Bg4=; F3) 6.h3 Nf6 (6...ef3 7.hg4 Bg4 8.gf3 Be6 9.Nc3 a5 10.b5 h5 11.d4 h4=) 7.Nd4 Be7 8.d3 c5 9.Nb3 cb4 10.de4 0–0 11.Bd3 Qc7=.

5.h3 Nf6 A) 6.Be2 Be7 (6...Nbd7 7.d4 Be7 8.a3 ed4 9.Bd4 0–0 10.Nf3 Re8 11.0–0 a5=; 6...Bf5 7.Nf3 Be7 8.0–0 0–0 9.a3 a5 10.b5 Qe8 11.Nc3 Nbd7=; 6...Be6 7.Nf3 Be7 8.d4 e4 9.Nfd2 d5 10.c5 Nbd7 11.0–0 0–0=; 6...e4 7.d3 d5 8.c5 Nc6 9.de4 Ne4 10.a3 Qg5 11.Bf1 Be6=) 7.a3 0–0 8.d4 ed4 9.Qd4 a5 10.b5 Nbd7 11.Nf3 Nc5=; B) 6.a3 Be7 7.Ne2 Be6 8.d4 a5 9.ba5 Bc4 10.de5 de5 11.Qd8 Bd8=; C) 6.Nc3 Be7 7.Nf3 0–0 8.d4 e4 9.Nd2 d5 10.b5 c6 11.bc6 bc6=; D) 6.Bc3 Be7 7.Be2 0–0 8.d4 ed4 9.Qd4 Nc6 10.Qf4 a5 11.b5 Nb4+=; E) 6.Nf3 Be7 7.Nc3 0–0 8.d4 e4 9.Nd2 d5 10.b5 c6 11.bc6 bc6=; F) 6.d4 ed4 (6...e4 7.d5 Be7 8.Ne2 0–0 9.Nbc3 a5 10.b5 Re8 11.Ng3 Bf8=) 7.ed4 Be7 8.Bd3 d5 9.c5 Nc6 10.a3 0–0 11.Nf3 Re8=.

5.h3 Qh4 A) 6.Qe2 Nf6 (6...e4 7.Nc3 Nf6 8.d3 Bg4 9.Qd2 Bf5 10.de4 Ne4 11.Nf3 Qh5+=; 6...a5 7.b5 Nf6 8.Nc3 Be7 9.Rc1 0–0 10.d4 Bg4 11.Nf3 Qh5=; 6...Be7 7.Nf3 Qh5 8.d4 0–0 9.de5 de5 10.Ne5 Bb4 11.Nd2 Rd8=; 6...Qh5 7.d4 Nc6 8.a3 Be7 9.Nc3 0–0 10.Ne4 Qg6 11.hg4 Qe4+=) 7.Nf3 Qh5 8.Nc3 Be7 9.d4 e4 10.Nd2 Bg4 11.f3 ef3=; B) 6.g3 Qh6 7.Bg2 Nf6 8.Nc3 Be7 9.d4 0–0 10.Nge2 a5 11.b5 Nbd7=.

5.h3 Nh6 6.Be2 (6.d4 ed4 7.ed4 d5 8.a3 Qe7 9.Qe2 dc4 10.Qe7 Be7 11.Bc4 0–0=; 6.Nc3 Be7 (6...a5 7.Qa4 Bd7 8.b5 Be7 9.Be2 0–0 10.Nf3 f5 11.0–0 Be6+=; 6...Bf5 7.Nf3 a5 8.b5 Nd7 9.Be2 Be7 10.0–0 0–0 11.d4 Bf6+=; 6...Nc6 7.b5 Ne7 8.Nf3 f5 9.Be2 e4 10.Nd4 a6 11.ba6 Ra6+=; 6...Na6 7.a3 Be7 8.Nf3 0–0 9.Be2 c5 10.bc5 Nc5 11.d4 ed4+=; 6...Nf5 7.Nf3 Be7 8.d4 ed4 9.ed4 0–0 10.Bd3 Nc6 11.Nd5 Bf6=) 7.Nf3 0–0 8.Be2 f5 9.0–0 e4 10.Nd4 c5 11.Nc2 Bf6=; 6.a3 Bf5 7.d4 ed4 8.ed4 Be7 9.Qf3 Nc6 10.b5 Na5 11.g4 Bg6=; 6.Bc3 Be7 (6...Bf5 7.d4 Nd7 8.Ne2 Bg6 9.Ng3 ed4 10.ed4 Qe7 11.Be2 d5=) 7.d4 0–0 8.Bd3 ed4 9.ed4 d5 10.Qc2 g6 11.Nf3 Nc6=; 6.Nf3 c5 7.d4 ed4 8.ed4 cb4 9.Qa4 Nc6 10.d5 Qa5 11.Qb3 Ne7=) 6...g6 (6...Bf5!?= 7.Nf3 Be7 8.0–0 0–0 9.Nc3 a5 10.b5 Bf6 11.e4 Be6+=; 6...Be6 7.Nf3 Be7 8.0–0 0–0 9.Nc3 a5 10.b5 f5 11.d4 Nd7=; 6...Be7 7.Nf3 0–0 8.Nc3 f5 9.0–0 e4 10.Nd4 c5 11.Nc2 Bf6=; 6...Nf5 7.Nc3 Be7 8.Nf3 a5 9.Qa4 Qd7 10.Qd7 Bd7 11.e4 Nh4+=; 6...Nd7 7.d4 Be7 8.Nf3 e4 9.Nfd2 f5 10.0–0 a5 11.a3 ab4+=; 6...c6 7.d4 d5 8.c5 e4 9.b5 Qg5 10.Rh2 Nf5 11.Qd2 Nh4+=) 7.Nf3+= Nc6 (7...Bg7 8.d4 0–0 9.0–0 a5 10.b5 Re8 11.Nc3 Nd7+=) 8.b5 Ne7 9.d4 e4 10.Ng5 (10.Nfd2 d5 11.cd5 Nd5+/–) 10...Bg7 (10...d5!? 11.cd5 Qd5+= (11...Nd5 12.Ne4 Qh4+/–)) 11.Ne4+/– Nef5 (11...f5+/–) 12.0–0 Qe7 13.Nbc3 c6 (13...Be6 14.a4+–) 14.a4 (14.bc6 bc6 15.Ba3 0–0+–) 14...Nh4? (14...0–0 15.a5+–) 15.c5 (15.Ba3!? N4f5+–) 15...dc5 16.Nc5 Qg5 17.g4 f5 18.Qb3 (18.bc6 bc6 19.Rb1+–) 18...Bf8? (better is 18...fg4 19.N5e4 Qd8+=) 19.Ne6 Be6 20.Qe6 Be7?? (20...Qe7 21.d5 Qe6 22.de6+–) 21.Ba3 (21.bc6 Qf6 22.Qd7 Kf7 23.Bc4 Kf8+–) 21...fg4?? (21...Qf6 22.Qf6 Bf6 23.bc6 bc6 24.Rfb1+–) 22.hg4 (better is 22.Ne4 Nf3 23.Bf3+–) 22...Ng4?? (22...Qf6 23.Qf6 Bf6+–) 23.Qg4 (better is 23.Ne4 c5 24.Ng5+–) 23...Qg4 24.Bg4 h5 25.Be7 hg4 (25...Ke7 26.Be2+–) 26.Bh4 Rh4 27.Kg2 0–0–0 28.Rh1 g5 29.bc6 bc6 30.Rac1 Kb7 31.Ne4 Kb6 (31...Rdh8 32.Ng5 Rh1 33.Rh1 Rh1 34.Kh1+–) 32.Ng5 Rh1 33.Kh1 Rg8 34.Rc5 Rf8 (34...Rd8 35.Ne4+–) 35.a5 Kb7 36.Ne4 Rf3 (36...Rg8 37.Nd6 Kc7 38.Nc4+–) 37.Kg2 a6 (37...Ka6 38.Nd2 Rf6 39.Nc4+–) 38.Rg5 Rf7 (38...Ka7+–) 39.Nd6 Kc7 40.Nf7 1–0. Jacewicz,Grzegorz (2160) – Wolde,Daniel (1945), remoteschach.de, 2010.

4.e3 h6

5.d3 Bg4 (5...Be7 6.Nf3=) 6.Nf3 (6.Be2 Be2 7.Ne2 d5=) 6...Nbd7 (6...Na6 7.a3=) 7.Be2 Be7 8.0–0 c6 9.Nbd2 0–0 10.Qc2 a6 (10...a5 11.a3=) 11.h3 Bf3 (11...Bf5 12.a3=) 12.Nf3+= (worse is 12.gf3 b6=) 12...Re8 13.a3 b5 14.cb5 cb5 15.Nh4 (15.a4 Qb8+=) 15...d5 Black plans e4 16.Nf5 e4 (16...Rc8 17.Qd2=) 17.de4 de4 18.Ne7 (18.Rac1 Bf8+=) 18...Qe7= 19.Rfd1 Rad8 (19...Rac8 20.Qb3 Ne5 21.a4=) 20.Rd4 (20.Qb3 Nb6+=) 20...Ne5 (20...Nb6 21.Rad1 Rd4 22.Bd4=) 21.Rad1 (21.a4 Rd4 22.Bd4 Qb4 23.ab5 ab5=) 21...Rd4 22.Bd4 Rd8 (22...Qe6 23.Rc1+=) 23.Bc5 (23.a4!?+=) 23...Rd1= 24.Qd1 Qb7 (24...Qe6 25.Bd4=) 25.Qd8 (25.Bd4 Nfd7+=) 25...Kh7= 26.Bd4 (26.Qd6 Nc4 27.Bc4 bc4=) 26...Nfd7 (26...Nc6 27.Qd6 Nd4 28.ed4=) 27.f4 (better is 27.Qh4+=) 27...Nc4?? (27...Nc6 28.Qe8 Nd4 29.ed4=) 28.Bc4 (better is 28.Bg4 Qd5 29.Bd7+–) 28...f6?? (better is 28...bc4 29.Qe8 Nf6+=) 29.Qg8 Kg6 30.Bf7 1–0. Goldmund,Heike – Bromo,Alexis, FICGS, 2015.

5.Be2 Bf5 (5...Be7 6.Nf3=) 6.a3 g6 (6...Nbd7 7.Nf3=) 7.Nf3 Ne4 (7...Bg7 8.0–0+=) 8.0–0+= Bg4 (8...Bg7!?+=) 9.d4+/– Bf3? (better is 9...Bg7+/–) 10.Bf3+– (10.gf3?! Qg5 11.Kh1 Nf6+=) 10...f5 11.Be4 fe4 12.Qg4 Qf6 (12...Kf7 13.Qe4 c6 14.f4 ed4 15.f5+– (15.ed4?! d5 16.Qc2 Bg7+–)) 13.Qc8 Kf7 (13...Qd8 14.Qb7 Nd7+–) 14.Qb7 Be7 (14...Bg7 15.Qa8 ed4 16.Qa7+–) 15.f4 (15.Qa8 Qe6+–) 15...ed4 (15...Nd7 16.fe5 Qf1 17.Kf1+–) 16.Bd4 Qh4 (16...Nd7 17.Bf6 Bf6+–) 17.Bh8 Bf6 18.Qc7 (better is 18.Qd5 Ke7 19.g3 Qg4 20.Bf6 Kf6 21.Qa8 Qc8+–) 18...Be7 19.Qb7 Ke6 20.Qa8 Nd7 21.Qd5 1–0. pierre (2125) – gurvinder372, chesshere.com, 2007.

5.Nf3 Bg4 6.Be2 Bf3 7.Bf3 c6 8.0–0 Be7 9.a3 0–0 10.d4 Nbd7 11.de5 de5 12.Nd2 Bd6 13.Qc2 Qc7 14.Ne4 Ne4 15.Be4 f5 16.Bf3?? e4–/+ 17.Bh5 Nf6 18.Qe2? Bh2–+ 19.Kh1 Be5 20.Be5 Qe5 21.Rfd1 Nh5 22.Qh5–/+ Rae8 23.g4 Rd8 24.g5 Rd1 25.Rd1 Qe6 26.Kg2 hg5 27.Qg5 f4 28.ef4 e3 29.Re1 Qe4 30.Kg3 Qe5?? 31.fe3 Qc3+= 32.Kf3?? Qc4 33.Rh1 Qd5 34.e4?? Qd3 35.Kg4 Qd2 36.Qh4?? Qg2 37.Kh5 Qf3 38.Kg5–+ (38...Qe4 39.Qh7 Qh7 40.Rh7 Kh7 41.Kg4–+). slavisa11 – Charliechess1, Live Game Caissa's Web, 2004.

4.Nf3 a6

5.Nc3 Be6 6.e3 d5 7.Ne5 dc4 8.Nc4 Bb4 9.a3 Bc3 10.Bc3= Nbd7 11.Na5 Bd5 12.Nb3 0–0=+ 13.Nd4 Nb6 14.Nf3 Ne4 15.Bb4 Re8 16.d3 Nf6 17.Be2= a5 18.Bc3 Bc6 19.0–0 Nbd5 20.Bb2 h6 21.Nd4 Bd7 22.Bf3 c6 23.g3 c5 24.Ne2 Bh3 25.Re1 Qd7 26.Nc3 Nc3= 27.Bc3 Rab8 28.Ba5 b6 29.Bc3+/– Nd5 30.Bb2 Ne7 31.Qb3 Ng6 32.Rad1 Qf5 33.Bh1 Ne5 34.Be5 Re5 35.d4 Re7 36.dc5 Qc5 37.Rd5 Qc7 38.Rb5 Rc8? 39.Qb2 Rd7 40.Rb6+– Qd8 41.Bf3 Rc2 42.Qc2 Qb6 43.Qc8 Qd8 44.Qd8 Rd8 45.a4 Rd2 46.Ra1 Rd7 47.a5 Ra7 48.a6 f5 49.Bb7 Bg4 50.Rc1 Be2 51.Rc7 Kf8 52.Rc8 Kf7 53.Rc5 Kg6? 54.f4 Kh5 55.Rf5 Kg6 56.Rc5 1–0. algernon (2110) – vgomdysey (2160), net–chess.com, 2005.

5.e3 (--> 4.e3 a6 5.Nf3).

4.Nf3 b6

5.Nc3 Bb7 6.d3 Be7 7.e4 0–0 8.a3 Nbd7 9.Be2 a6 10.Nd5 Nd5 11.ed5 c6 12.dc6 Bc6 13.0–0 d5 (13...Re8 14.Re1=) 14.d4 (14.Ne5 Ne5 15.Be5 Bf6 16.Bf6 Qf6+=) 14...ed4 (14...e4!? 15.Ne5 Ne5 16.de5 dc4 17.Bc4 b5=) 15.Nd4+= (worse is 15.Qd4 Bf6 16.Qd2 dc4 17.Bf6 Nf6–/+ (worse is 17...gf6 18.Qf4+=)) 15...Bb7 16.Bf3 Bf6 17.Ra2 (17.Bd5 Bd5 18.cd5 Ne5+/–) 17...Bd4 (better is 17...Ne5=) 18.Bd4+/– Nf6 19.c5 (19.Qa1 Ne4+/–) 19...b5 (19...bc5 20.bc5 Ne4 21.Rb2+=) 20.Qd3 Re8 21.Qc3 Re6 22.a4 Bc6 23.a5 Qe7 24.Raa1 Re8 25.h3 Qc7 26.g3 Rd8 27.Rad1 Ne8 (27...Qd7 28.Qd3+=) 28.Bg4 Re7 29.f4 f6 30.Kh2 Bd7 31.Bh5 Qc8 32.g4 (32.Rfe1 Re4 33.Re4 de4+=) 32...Qc6 (32...g6!? 33.Bf6 Nf6 34.Qf6 Rg7 35.Rd5 Rf8= (worse is 35...gh5 36.c6+/–)) 33.g5+= fg5 (33...Bf5+=) 34.Be5 (34.fg5 Nc7 35.Bf6+–) 34...Nf6 (better is 34...gf4 35.Rf4 g6=) 35.Bd6?? (35.Bf6 gf6 (35...Qf6? 36.Qf6 gf6 37.Rd5+–) 36.Qd2 Be6=) 35...Ne4?? (better is 35...Re6!? 36.Qf3 gf4 37.Qf4 Re4–+) 36.Qe3 (better is 36.Qb3 Nd6 37.cd6=) 36...gf4?? (better is 36...Re6 37.Be5 Nf6+=) 37.Rf4 Re6 38.Bf7 Kh8 39.Be6 Be6 40.Rdf1 h6 (40...Bg8 41.Be5 Rd7 42.Rg4+–) 41.Be5+– Rd7 42.Qg1 (42.Re4 Kg8 43.Ref4+–) 42...Qb7?? (better is 42...Kh7+–) 43.Qg6 Ng5 (43...Rf7 44.Rf7 Qf7 45.Rf7 Bf7 46.Qg7) 44.Qh6 Kg8 (44...Nh7 45.Rh4 Bg8 46.Qh7 Bh7 47.Rf8) 45.Rf8 1–0. Romsdal,Svein Erik – Henriksen,Ivar, Alta ASKO Hostturnering, 2004.

5.Nc3 Be7 A) 6.d4 A1) 6...0–0 7.b5 (7.e4 Nbd7 8.Bd3 c5 9.bc5 bc5 10.de5=) 7...ed4 8.Qd4 a6 9.e4 c6 10.Be2=; A2) 6...e4 7.Nd2 d5 8.e3 0–0 9.b5 a6 10.cd5=; A3) 6...ed4 7.Nd4 c5 8.Nc2 Nbd7 9.e4 Ne5 10.f4=; B) 6.g3 B1) 6...0–0 7.Bg2 Bb7 8.0–0 e4 9.Ng5 d5 10.cd5=; B2) 6...Bf5 7.Bg2 (7.Qa4 Bd7 8.b5 c6 9.Bg2 0–0 10.0–0=; 7.d4 e4 8.Nh4 Bd7 9.b5 a6 10.ba6=) 7...c6 8.d4 e4 9.Nh4 Bd7 10.d5+=; B3) 6...c6 7.Bg2 0–0 8.0–0 Be6 9.d3 Re8 10.b5=; C) 6.a3 C1) 6...a5 7.Qa4 (7.b5 0–0 8.e4 Bb7 9.Bd3 Nbd7 10.Bc2=) 7...Bd7 8.b5 Na6 9.Qd1 Nc5 10.e3=; C2) 6...Nbd7 7.e4 (7.d4 0–0 8.d5 e4 9.Nd4 e3 10.fe3=) 7...Bb7 8.Qc2 a5 9.b5 0–0 10.Be2=; C3) 6...0–0 7.e4 a5 8.b5 Bb7 9.Bd3 Nbd7 10.Bc2=; D) 6.e4 D1) 6...0–0 7.d4 (7.Be2 c5 8.bc5 bc5 9.Rb1 Nc6 10.0–0=; 7.b5 Bb7 8.Qc2 Nbd7 9.Be2 Nc5 10.d3=; 7.a3 c5 8.bc5 bc5 9.Be2 Nc6 10.0–0=) 7...Nc6 8.b5 Nd4 9.Nd4 ed4 10.Qd4+=; D2) 6...Bb7 7.d3 (7.Bd3 0–0 8.0–0 Nbd7 9.Qc2 a5 10.a3=) 7...a6 8.Be2 0–0 9.0–0 Nbd7 10.a3=; E) 6.e3 0–0 7.Bd3 (7.Be2 e4 8.Ng5 d5 9.cd5 Bf5 10.Qb3=) 7...Bb7 8.Bf5 a5 9.b5 e4 10.Nd4=.

5.Nc3 h6 6.d4 (6.e4 A) 6...Nbd7 7.Qc2 (7.Be2 Be7 8.0–0 Bb7 9.Qc2 c5 10.a3=; 7.a3 Bb7 8.Qe2 a5 9.Nd5 ab4 10.ab4=; 7.d4 c5 8.de5 de5 9.Nd5 Bd6 10.Nf6+=) 7...a5 8.b5 Nc5 9.d4 ed4 10.Nd4+=; B) 6...Bb7 7.d3 (7.Bd3 Be7 8.0–0 Nbd7 9.a3 a6 10.Bc2=) 7...Be7 8.Be2 0–0 9.0–0 Nbd7 10.a3=; C) 6...Be7 7.Be2 Nbd7 8.0–0 c5 9.a3 Bb7 10.bc5=) 6...e4 (6...ed4 7.Nd4 Be7 8.e3 c5 9.bc5 dc5 10.Ndb5+=; 6...Nbd7 7.Qa4 (7.e4 a5 8.b5 a4 9.Na4 Ne4 10.Bd3+=; 7.b5 Bb7 8.d5 a6 9.e4 Nc5 10.Qc2+=; 7.e3 ed4 8.Nd4 Bb7 9.f3 Ne5 10.e4+=) 7...c5 8.de5 de5 9.bc5 Bc5 10.Ne5+=) 7.Nd2 g6 (7...d5!?= 8.e3 c6 9.b5 cb5 10.Nd5+=) 8.Nde4+/– Nh5 (better is 8...Ne4!? 9.Ne4 d5+/– 10.Nc3+/–) 9.e3+– Bg7 (9...c6 10.Be2+–) 10.Be2 Qh4? (10...Nf6 11.Bf3 c6 12.Nf6 Bf6 13.b5+–) 11.Bh5 (better is 11.Bf3 0–0+–) 11...gh5? (better is 11...Qh5 12.Qh5 gh5+–) 12.Nd6! cd6 13.Qf3 d5 14.Qd5 (14.Qd5 Bd4 15.Qa8+– (worse is 15.ed4 Qe7 16.Ne4 0–0 17.Qa8 Bb7 18.Qa7 Qe4 19.Kd2 Qf4 20.Kc3 Bg2+–; worse is 15.Qd4 Qd4 16.ed4 Rg8+–); 14.Nd5?! Na6 15.Nb6 ab6 16.Qa8 0–0+–) 1–0. Wall,Bill – Seira, internet, 2001.

5.e3 Bb7 6.Be2 (--> 4.e3 b6 5.Nf3 Bb7 6.Be2).

4.Nf3 c6

5.d3 Be7 6.Nc3 0–0 (6...Nbd7 7.e3+=) 7.e3 Qc7 (7...Bg4 8.Be2=) 8.Be2= Re8 (8...d5 9.Qb3=) 9.0–0 Nbd7 10.Qc2 (10.a3 a5=) 10...Nf8 (10...b6 11.d4=) 11.Rac1 (11.d4 Ne6=) 11...Ng6 (11...Bf5 12.Rfd1=) 12.Rfd1 (12.d4 Bg4=) 12...Bf5 (12...a5 13.b5=) 13.e4 (13.a3 a5=) 13...Bd7 (13...Be6 14.d4=) 14.d4 Rac8 (14...Nf4 15.a3=) 15.a4 (15.a3 Nf4=) 15...h6 (15...Nf4 16.de5 de5 17.c5=) 16.h3 (16.a5 Nf4+=) 16...Nh5 (16...a5 17.ba5 ed4 18.Nd4 Qa5 19.Qd2=) 17.Qd2 (17.de5 de5 18.c5=) 17...Nhf4 (better is 17...ed4!? 18.Qd4 Nhf4=) 18.de5+/– de5? (better is 18...d5!? 19.cd5 Bb4+/–) 19.Qd7+– Bb4 20.Qc7 Rc7 21.Bf1 Bc5 (21...Nh5 22.Na2 Bc5 23.Rd2+–) 22.Rc2 Ne6 23.Rcd2 (23.Ne2 Rcc8+–) 23...Nd4 24.Nd4 ed4 25.Ne2 (worse is 25.Rd4 Bd4 26.Rd4 Rcc8+–) 25...Re4 26.Bd4 (26.Nd4 Bb4 27.Re2 Re2 28.Be2 Re7+–) 26...Bd4 (26...Bb4 27.Ng3 Re8 28.Rd3+–) 27.Nd4 Rce7 (27...Re5 28.Bd3+–) 28.Nf5 R7e6 (28...R7e5 29.Nd6 Re1 30.Nb7+–) 29.Nd6 R4e5 (29...Re1 30.Nb7 Rd1 31.Rd1+–) 30.Nb7 Nf4 (30...Re7 31.Nd8 Rc5 32.Rb1+–) 31.Nd8 Rg6 (31...Rf6 32.g3 Ng6 33.Rd6+–) 32.g3 1–0. Wall,Bill – Diver, internet, 2004.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 c6 5.Nf3).

4.Nf3 e4

5.Nd4 c5 6.Nc2 cb4 7.Nb4 Nbd7 8.Nc3 Ne5 9.Nbd5 Nd5 10.Nd5 g6 11.f4 ef3 12.ef3 Bg7 13.f4 0–0 14.fe5 (14.Qb3 Ng4=) 14...Qh4 15.g3 Qe4 16.Qe2 Qh1 17.0–0–0 de5 18.Bh3 (18.Ne7 Kh8 19.Bh3 Qd1 20.Kd1 Bh3 21.Be5 f6=) 18...Qd1 (18...Qd5! 19.cd5 Bh3–/+) 19.Kd1= Bh3 20.Ne7 (20.Be5? Rae8 21.Qf3 Re5–+) 20...Kh8 21.Be5 f6 22.Bd6 Rae8 (22...Rad8!? 23.c5 f5=) 23.Qf3 f5? (better is 23...Be6!? 24.Qe4 Bf7+=) 24.Qb7+– Rf7 (24...Bg4 25.Kc2+–) 25.Qd5 (25.Ng6!? Kg8 26.Qc6 Rd8+–) 25...Rff8 26.Nc6 Bg4 27.Kc2 Re1 28.Bf8?? (better is 28.Ne5 Bd1 29.Kc3+–) 28...Bd1= 29.Kd3 Be2 30.Kc2 Bd1 ˝–˝. Fecht,Hans Peter (2230) – Jurlina,Robert (2165), Oberliga Baden, 2005. (=1.Nf3 Nf6 2.c4 d6 3.b4 e5 4.Bb2 e4)

5.Nd4 c5 6.bc5 dc5 7.Nc2 Nc6 8.Nc3 Be6 (8...Be7 9.g3=) 9.Ne3 Be7 (9...Bd6 10.g3=) 10.g3+= 0–0 11.Bg2 h5 (11...Na5!?+=) 12.Ne4+/– Ng4 13.Nd5 Bd5 (13...f5!? 14.Nec3 h4+/–) 14.cd5+– Nb4 (14...Qd5?? 15.Nf6! Nf6 16.Bd5 Nd5 17.Rb1+–) 15.h3 Nf6 16.Bf6 Bf6 17.Rb1 Rc8? (better is 17...Be7!?+/–) 18.Nf6+– Qf6 19.a3 Nd3? (19...Na6 20.Rb7 Rb8 21.Rb8 Rb8+–) 20.ed3 Rfe8 (20...Rce8 21.Be4 Qd4 22.0–0+– (22.Rb7 Re4 23.Kf1 Qd3 24.Kg2 Qd5=)) 21.Be4 Qd4 (21...b6 22.Qh5 g6 23.Qh6+–) 22.0–0 (22.Rb7?! Re4 23.Kf1 Qd3 24.Kg2 Qd5+=) 1–0. marekt – canuteroad, chessworld.net, 2015.

5.Nd4 d5 6.c5 (6.cd5 Qd5 7.e3 Qd7+=) 6...c6 (6...a5!? 7.a3 Nc6+=) 7.Nc3= Be7 8.d3 (8.e3 0–0=) 8...0–0 9.de4 de4 (9...a5 10.a3=) 10.e3 a5 11.a3 ab4 12.ab4 Na6 (better is 12...Ra1!? 13.Qa1 b6=) 13.Ba6+/– Ra6 14.Ra6 ba6 15.Nc6 Qc7 (15...Qe8 16.Ne7 Qe7 17.Qa1+/–) 16.Ne7 (16.Qa4 Re8 17.Ne7 Qe7+–) 16...Qe7 17.Qd6 (better is 17.0–0!?+/–) 17...Qd6= 18.cd6 Rd8 19.b5 (19.Na4 Rd6 20.0–0 Nd7=) 19...Rd6 20.ba6 (20.0–0 h6=) 20...Ra6 (20...Ba6 21.Na4+=) 21.Ke2= Ra2?? (better is 21...Bd7=) 22.Na2+– 1–0. pierred – esiv2003, Yahoo, 2005.

4.Nf3 Bf5

5.Nc3 Be7 6.d3 (6.e3) 6...0–0 7.h3 h6 8.g4 Bh7 9.Bg2 Nbd7 10.0–0 Ne8 11.Nd2 f5? (11...Nef6) 12.Bb7 Rb8 13.Bd5 Kh8 14.Nb5 fg4 15.hg4 Ndf6 16.Bf3 a6 17.Na7 Rb4? (17...Qd7) 18.Nc6 Qc8 19.Nb4 Ng4 20.e3 Ngf6 21.Rb1 Nd7 22.Be4 Nef6 23.Bh7 Nh7 24.Nd5 Qe8 25.Ne4 Qg6 26.Kh2 Bg5 27.f4 Bh4 28.Nc7 ef4 29.ef4 Nhf6 30.f5 Qf7 31.Ne6 Ne4 32.Bg7 Kg8 33.de4 Re8 34.Qg4 Bg5 35.Bh6 1–0. Wall,Bill – Carpediem, playchess.com, 2012.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Bf5 5.Nf3).

4.Nf3 h6

5.Nc3 Be6 =.

5.e3 Bf5 6.Nc3 Nbd7 7.Be2 Be7 8.0–0 0–0 9.d3 a6 10.e4 Bh7 11.Nd5 c6 12.Ne7 Qe7 13.Rc1 c5 14.Qb3 Rfb8 15.a3 b5 16.Nd2 cb4 17.cb5 Nc5 18.Qa2? Rb5?? 19.d4 Nce4 20.Bb5 ab5 21.Nf3 Nd5?? 22.Qd5+– (22…Re8 23.ab4 (< 23.Qb5 ba3 24.Ba3 ed4+–) 23...ed4 24.Qb5+–) 1–0. Davis,Charles – Zollinger,Peter (1680), Albuquerque res op, 1997.

5.g3 Be7 6.Bg2 c6 7.0–0 Be6 8.d3 b5 9.cb5+/– cb5 10.Nc3 a6 11.Ne5!+/– de5 12.Ba8+– Nd5 13.Nd5 Bd5 14.Bd5 Qd5 15.Rc1 0–0 16.a3 Qd6 17.Rc2 Bf6 18.Qa1 Nc6 19.Rfc1 Nd4 20.Bd4 ed4 21.Rc6 Qe7 22.Qa2 Re8 23.Ra6 Qb7 24.Rcc6 Rc8 25.Qd5 Rc6 26.Qc6 Qc6 27.Rc6 1–0. algernon (2110) – mpopp (1910), net–chess.com, 2004.

4.g3 a6

5.Bg2 c5 6.bc5+= Nc6 7.Nf3 Be7 (7...Qc7 8.d4 dc5 9.de5+/–) 8.0–0 0–0 9.cd6 Bd6 (9...Qd6 10.d4 e4 11.Nfd2 Nd4 12.Ne4 Ne4 13.Qd4 Qd4 14.Bd4+/–) 10.Nc3 Be6 11.d3 Bc7 (11...Rc8 12.Ng5+/–) 12.Ng5 Nd7 (better is 12...Bg4!?+/–) 13.Ne6+– Qb8?? (better is 13...fe6 14.Ne4 Rb8+–) 14.Nf8 Nf8 (14...Qf8 15.Nd5 Rc8 16.e3+–) 15.Nd5 Bd6 16.e3 Ne6 (16...Qd8 17.Rb1+–) 17.d4 (17.Qh5 Qe8+–) 17...ed4 18.ed4 b5 (18...Qd8 19.c5 Bf8 20.Re1+–) 19.c5 Qd8 (19...Bc7 20.Nc7 Qc7 21.d5+–) 20.cd6 Qd6 21.Ne3 (better is 21.Rc1 Na5 22.Nf6 gf6 23.Ba8 Nc4 24.Qg4 Kh8+–) 21...Nc7 (21...Ned8 22.Nf5 Qb4 23.Re1+–) 22.Rc1 Rc8 23.Rc6 Qd7 24.Qc2 black timed out 1–0. pierred (2765) – lincolnxavi, net–chess.com, 2014.

5.Bg2 Be7 6.a3 0–0 7.d3 (7.Nf3 a5+=) 7...Nbd7 (7...a5 8.Nf3=) 8.Nd2 (8.Nf3 a5=) 8...c5 (8...Re8 9.Ngf3=) 9.Ngf3 cb4 10.ab4 Ng4 (10...d5 11.Qb3 Qb6 A) 12.Be5? A1) 12...Qb4?! 13.Bd4= (13.cd5? Ne5 14.Ne5 Qd4–+); A2) 12...Ne5 13.Ne5 Qd4–+ (13...Bb4?! 14.0–0=); B) 12.cd5 Bb4 13.0–0 Bd2 14.Nd2 Qb3 15.Nb3+=) 11.0–0 Re8 (11...Qb6 12.Qb3+=) 12.h3 (12.Qb3 Nb6+=) 12...Ngf6 13.Qb3 White prepares b5 13...Rb8 14.Rfc1 h6 (14...Ra8 15.d4+=) 15.b5 (15.e3 b5+=) 15...Nc5 16.Qc2 ab5 (16...Bf5 17.e4 Bd7 18.d4 ed4 19.Nd4+=) 17.cb5+= Be6 (17...Bf5 18.e4 Bh7 19.Nb3+=) 18.d4 ed4 19.Nd4 (worse is 19.Bd4 Qd7+=) 19...Bd7 (19...Rc8 20.Ne6 fe6 21.Qg6+=) 20.Bc3 Bf8 (20...d5 21.Ba5 b6 22.Bc3+=) 21.e3 (21.Ba5 Qe7+=) 21...Qe7 (21...Rc8 22.Ra7+=) 22.b6 (22.Nc4 Qd8+/–) 22...Nfe4 (22...Qd8 23.Qb1+=) 23.Ne4+/– Ne4 24.Be4 Qe4 25.Qe4 Re4 26.h4 g6 (26...Be7 27.Bb4+/–) 27.Bb4 (27.Bb2 Bg7+/–) 27...d5 (27...Bc6 28.Ra3+/–) ˝–˝. Brodie – Kuber, 1969.

4.g3 Nc6

5.b5 Na5 6.d3 (6.Qa4 b6=) 6...Be7 (6...a6 7.ba6 Ra6 8.Bg2+=) 7.Bg2 (7.Bc3 b6 8.Bg2=) 7...0–0 (better is 7...a6!?+=) 8.Bc3+/– d5? (better is 8...c6 9.Qd2 b6+/–) 9.Ba5+– dc4 (9...a6 10.cd5 Nd5 11.ba6 Ra6 12.Bd2+–) 10.Qc2 (10.dc4 Qd1 11.Kd1 e4+–) 10...Qd6? (10...cd3 11.Qd3 Qd3 12.ed3+–) 11.Bc3 (better is 11.Qc4!? Ne8+–) 11...Qc5 (11...Bf5 12.Qb2 cd3 13.Be5+–) 12.Nd2 (12.dc4 Ng4 13.e3 Qc4+–) 12...Ng4 The mate threat is Qxf2 13.e3 (better is 13.Ne4 Qb5 14.h3+–) 13...Rd8? (13...cd3 14.Qd3 Rd8 15.Qc2 Qb5 16.Rb1+–) 14.Nc4 (14.dc4 Bd6+–) 14...Be6? (14...Bf5 15.Nb2 (15.Bb7 Bd3 16.Qb2 Qc4+=) 15...Qb5 16.a4+–) 15.Ne2 (15.h3 Nf6 16.Bb7 Rab8+–) 15...Bc4 (15...Bf5 16.Nb2 (16.Bb7 Bd3 17.Qb2 Qc4 18.Ba8 Ra8=) 16...Qb5 17.a4+–) 16.dc4 Qc4 17.0–0 (17.h3!? Nf6 18.Bb7 Rab8+–) 17...Rab8 18.Rfd1 (18.a4 a6+–) 18...Qb5 (18...Rd1 19.Rd1 Qb5 20.Rd5+–) 19.Rd8 Rd8 20.Rb1 Qc5 (20...Qc4 21.h3 Nf6 22.Rb7+–) 21.Bb7 (21.Rb7 Nf6+–) 21...Bg5 (21...Qc4 22.Bf3 Nf6 23.Qb3+–) 22.Rd1 (better is 22.Qf5 Qc4 23.Bf3 Nf2 24.Kf2 Be3 25.Kf1 f6+–) 22...Nf2 (22...Rd1 23.Qd1 Be7+–) 23.Rd8 Bd8 24.Kf2 Bg5 (24...g6 25.Qe4 Bf6 26.Bd5+–) 25.Qd3 (25.Qe4 f6+–) 25...h6 (25...g6 26.Qd7 Be3 27.Kf3+–) 26.h4 Bf6 27.Be4 (27.Qd7 Qd6 28.Qc8 Kh7+–) 27...Be7 (27...g6 28.Qd7 Qd6 29.Qd6 cd6 30.Bb4+–) 28.Ng1 (better is 28.Qd7!? Bf8+–) 28...Qa5 (28...Bd6+–) 29.Ba5 (29.Ba5 g6 30.Qd5 Kg7 31.Qe5 Bf6 32.Qc7 Kg8 33.Bd5 Kh7 34.Qf7 Kh8 35.Qg8) 1–0. Schutz – Hesse, 1985.

5.b5 Nd4 6.Bg2 g6 7.Nf3 Ne6 8.0–0 Bg7 9.e3 0–0 10.a4 Rb8 11.Na3 e4 12.Nd4 Nc5 13.Qc2 Nd3 14.Bc3 Bd7 15.f3 ef3 16.Nf3 Nc5 17.Ng5 h6 18.Nh3 Be6 19.Nf4 Bf5 20.d3 g5 21.e4 Bg6 22.Ng6 fg6 23.d4 Ncd7 24.c5 Ng4 25.cd6 White fights for the Initiative 25...Rf1 26.Rf1 cd6 Black gets strong play along the open c–file 27.Nc4 Qe7 28.h3 Rc8 29.Qb3 (29.hg4?! Rc4 30.Qb3 d5+=) 29...d5 30.Ne5 (30.hg4?! Rc4 (worse is 30...dc4 31.Qc2+/–) 31.e5 Qe6+=) 30...Nde5 (30...Qe5 31.de5) 31.de5 Qc5 32.Kh1 Qc3 33.Qd5 Kh7 34.hg4 Be5?? (better is 34...Qg3 35.e6 b6–/+) 35.Rf7+/– Bg7 36.Qb7 Kh8?? (better is 36...Rg8+–) 37.Rg7! Qg7 A deflection 38.Qc8 Kh7 39.Qc5 Qa1 40.Kh2 Qa4 41.Qe7 Kg8 (41...Kh8 42.Qf6 Kh7 43.Qf7 Kh8+–) 42.e5 Qb5 43.Qd8 Kh7 44.e6 1–0. Diaz Lombardo,Isidro (2055) – Figueroa,David (2000), Fide Mercenarios, 1999.

5.b5 Ne7 6.Bg2 c6 7.a4 Bd7 8.Nf3 Ng6 9.0–0 Be7 10.d3 0–0 11.Nbd2 cb5 (11...cb5 12.ab5 Re8=). algernon (2400) – deaf (2445), net–chess.com, 2003.

4.h3

4.h3 (--> 1.b4 e5 2.Bb2 d6 3.h3 Nf6 4.c4).

4.h3 Be6 5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be6 5.h3).

4.a3 a5

5.d3 Be6 6.Nf3 Be7 7.b5 Nbd7 8.g3 c6 9.a4 0–0 10.Bg2 Qc7 11.0–0 d5 12.cd5 Nd5 (12...cd5 13.Qd2+=) 13.Nc3 (13.Na3 Rfd8=) 13...Nb4 (13...Nc3!? 14.Bc3 cb5+=) 14.Rc1 Qb6 15.Ne4 f6 16.bc6 Nc6 17.Ba1 (17.Qd2 Qb4+=) 17...Bb3–/+ 18.Qd2 Nb4 19.d4 Rfd8 20.e3 (better is 20.Qb2!? Ba4 21.de5=) 20...Ba4–/+ 21.Qe1? (better is 21.de5!? Ne5 22.Nd4–/+) 21...Nd3–+ 22.Rb1?? (22.Qc3 Nc1 23.Rc1–+) 22...Ne1 23.Rb6 Nf3 24.Bf3 Nb6 25.de5 fe5 26.Be5 Nc4 27.Bd4 Bc6 28.Bg4 (28.Rc1 Nd6 29.Nd2 Bf3 30.Nf3 Rdc8 31.Rc8 Rc8–+) 28...Be4 29.Be6 Kf8 30.Bc4 Rdc8 31.Be6 b5 (31...Rc6!? 32.Bd7 Rd6 33.Ba4–+) 32.f3 Bd3 33.Rd1 Bc4 (33...Be2!? 34.Rb1 Rc7 35.Bf5–+) 34.Bc8 Rc8 35.Ra1 (35.Be5 Be2 36.Ra1 a4–+) 35...a4 36.Bb2 Bb3 37.f4 Rc2 38.Bd4 b4 39.f5 a3 40.e4 (40.h3 Bd5 41.e4 Be4–+) 40...Bc4 41.e5 b3 42.f6 gf6 43.ef6 Bb4 44.Be5 b2 (44...Bc5 45.Bd4 Bd4 46.Kh1 Bd5) 45.Bb2 (45.Rd1 Bc5 46.Bd4 Bd4 47.Rd4 b1Q 48.Rd1 Qd1) 45...ab2 0–1. Bango,Dominik – Topolovsky,Vincent (1950), Banska Stiavnica SVK, V4 Open, 2013.

5.b5 Be7

6.Nc3 0–0 7.Nf3 Bg4 8.e4 c6 9.Be2 Re8 10.h3 Bh5 11.0–0 Nbd7 12.d3 Nc5 13.Bc1 h6 14.Rb1 (14.Be3 Qc7+=) 14...Nh7 (14...Qc7 15.Be3=) 15.Be3+= Ne6 16.bc6 bc6 17.Rb6 (17.Qa4 Qc8+=) 17...Bf3 18.Bf3 (worse is 18.gf3 Nd4 19.Na4 d5+=) 18...Nhg5? (better is 18...Nd4 19.Na4 Qc7+=) 19.Rc6+– Ra7?? (better is 19...Rb8+–) 20.Ba7 Qa8 (20...Nf3 21.Qf3 Qd7 22.Ra6+–) 21.Ra6 Qb7 (21...Nf3 22.Qf3 Nc5 23.Ra5+–) 22.Ra5 Ra8 23.Bb6! Ra5 (23...Qb6 24.Nd5 Double attack (24.Ra8 Discovered attack; 24.Ra8 Deflection; 24.Nd5 Decoy)) 24.Ba5 Qb2 (24...Qa8 25.Bb4+–) 25.Bg4 (25.Nd5 Nf3 26.Qf3 Bg5+–) 25...Nd4 (25...Qa3 26.Qa1 Qa1 27.Ra1+–) 26.Bb4 Nc2 (26...Nge6 27.Nd5 Bf8 28.f4+–) 27.Qe2 Qb3 (27...f5 28.Rb1 Qb1 29.Nb1 Nb4 30.ab4 fg4 31.Qg4+–) 28.Rb1 Nd4 29.Rb3 Ne2 30.Be2 Ne6 31.a4 Nd4 32.a5 Nb3 33.a6 1–0. mtr – chtijojo, littlegolem.net, 2009.

6.e3 0–0 7.d4 ed4 8.Bd4=.

6.e3 c6 7.Nc3 0–0 8.Qc2 cb5 (8...d5 9.cd5 cd5 10.Nf3=) 9.Nb5= g6 (9...Nbd7 10.d4=) 10.Be2 Na6 (10...Nc6 11.Nf3=) 11.Nf3+= Bf5 12.Qd1 Nc7 13.Nc3 Ne4 (13...Qd7 14.0–0+=) 14.0–0 Bf6 15.d4 Qe7 16.Na4 b5 (16...Bg4!?+=) 17.cb5+/– Rab8 18.Bd3 Nb5 19.Rc1 (19.de5 de5 20.g4 Nf2 21.Kf2 Bh4 22.Kg1 Bd3 23.Qd3 e4=) 19...Rfd8 (19...ed4 20.Bb5 Rb5 21.Nd4+=) 20.Qe2 (20.g4 Bg4 21.Be4 d5 22.de5 de4 23.ef6 A) 23...Rd1 24.fe7 Rc1 A1) worse is 25.Bc1 Bf3 (25...ef3? 26.Rd1 Re8 27.Rd8+–) 26.Bd2 Re8+=; A2) 25.Rc1 Bf3 26.Rc5+–; B) 23...Qe8–/+) 20...Qe8 (better is 20...Qb7+=) 21.Rfe1?? (better is 21.g4!? Nec3 22.Nc3 (22.Bc3 Bd3 23.Qd3 e4+/–) 22...Nc3 23.Bc3 (23.Rc3 Bg4 24.e4 Rb2 25.Qb2 ed4–/+) 23...Bd3 24.Qd3+–) 21...Na7 (21...Na3!? 22.Ra1 Qa4 23.Ra3 Qb4–/+) 22.Rc4 Be6 23.Nc3 Bg7 (23...Bc4 24.Ne4 Bg7 25.Bc4+=) 24.Ne4 (24.Rc7 Nc3 25.Bc3 Nb5 26.Ba5 Nc7 27.Bc7 Rb3+=) 24...Bc4 25.Bc4 d5 26.Bd5 Rd5 27.Ne5 Rdd8 (27...Nc6 28.Nc3 Rdd8 29.Nd3+=) 28.Bc3 Nc6 29.Nc6 Qc6 30.Nc5 Rb5 31.Rc1 Bf8 (31...Rd5 32.Ba1+/–) 32.a4 Rbb8 33.Ba5 Rd5 34.Qc2 Bc5 35.Be1 (35.dc5?? Rc5 36.Qc5 Qc5–+) 35...Rc8 36.a5 Qd6 37.Qb3 Rb8 (37...h6 A) 38.Rc5? Rcc5 (38...Rdc5?! 39.dc5 Rc5 40.Qb1=) 39.dc5 Rd1–+ (39...Rc5?! 40.Qb1=); B) 38.h3+=) 38.dc5= Rb3 (better is 38...Rc5!? 39.Qd1 Rc1 40.Qc1 Qd3=) 39.cd6+/– Rd6 40.e4 Rd8 (40...Kf8 41.Kf1+/–) 41.f3 Ra3 (41...f5 42.e5+/–) 42.Rc2 ˝–˝. Cirulis,Ilmars (1890) – Koivuniemi,Raimo (2000), FICGS, 2015.

6.e3 Nbd7 7.d4 ed4 8.Bd4 0–0 9.Nf3 Ne4 10.Nbd2 Nec5 11.Be2 Bf6 12.0–0 Qe7 13.a4 Qe6 14.Re1 Re8 15.Qc2 b6 16.Nf1 Bb7 17.Ng3 Rad8 18.Rad1 (18.Nh5 Bd4 19.Nf4 Be4+=) 18...h6 19.Bf6 Nf6 (19...Qf6 20.Nd4+=) 20.Nd4= Qe7 21.Bf3 Nfe4 22.Nb3 Ng3 23.Bb7 Nb7 24.hg3 Qe4 25.Qe4 Re4 26.Rd4 Rde8 27.Kf1 f5 28.Re4 fe4 29.Rd1 Kf7 30.Ke2 Re5 31.f3 Rg5 32.Kf2 Re5 33.f4 Re8 34.Rd5 Kg6 35.g4 Kf7 36.Kg3 Kf6 37.Rf5 Kg6 38.Kf2 Rh8 39.Ke2 Re8 40.Kd2 Rh8 41.Kc3 Nc5 42.Nc5 bc5 43.Kd2 Rb8 44.Ke2 Rd8 45.Rd5 Kf6 46.Kf2 Rf8 47.Kg3 Rd8 48.Kh4 Rb8 49.Kh5 g6 50.Kh4 Rg8 (50...Rb6!?=) 51.b6+/– g5 52.Kg3 Ke7 53.bc7 Kd7 54.Rf5 gf4 55.Kf4 (55.Rf4?! Kc7 56.Re4 Kd7=) 55...Kc7 56.Rf6 Rh8 57.Ke4 Re8 58.Kf4 Rb8 (58...Rh8!?+/–) 59.Rh6+– Rb4? (better is 59...Rf8 60.Kg3 Re8+–) 60.g5 (60.g5 Rc4 61.Kf5+–) 1–0. Mehlhorn,Uwe (2440) – Friedrich,Fritz (2200), remoteschach.de, 2003.

6.Nc3 Bg4

7.h3 Be6

8.e3 0–0

9.Nf3 Nbd7

10.Ng5 Ra7 A) 11.Qc2 Nb6 (11...Nc5 12.d4 h6 13.Nf3 e4 14.Nd2 Nd3 15.Bd3+/–) 12.Bd3 h6 13.Ne6 fe6 14.Be2 d5 15.d3=; B) 11.Be2 B1) 11...Nb6 12.Ne6 (12.Qc2 Qd7 13.Ne6 Qe6 14.d3 c6 15.Na4=) 12...fe6 13.d4 ed4 14.ed4 Rf7 15.0–0+=; B2) 11...Bf5 12.d4 (12.0–0 h6 13.Nf3 Re8 14.d4 c5 15.Re1=; 12.d3 h6 13.Nf3 Nc5 14.d4 ed4 15.Nd4=) 12...c5 13.0–0 cd4 14.ed4 h6 15.Nf3=; C) 11.d4 ed4 12.Qd4 (12.Ne6 fe6 13.ed4 c5 14.Qe2 cd4 15.Qe6=) 12...Nc5 13.Be2 Ra8 14.Ne6 fe6 15.Rd1=; D) 11.Ne6 fe6 12.d3 (12.d4 c5 13.d5 Nb6 14.de6 Qc8 15.e4=; 12.Rb1 e4 13.d3 ed3 14.Bd3 Nc5 15.Bc2=) 12...Nc5 13.Be2 a4 14.Rb1 Qd7 15.0–0+=.

10.Ng5 Nb6 11.Ne6 (11.d3 Bc8 12.Be2 Nfd7 13.Nf3 Nc5 14.0–0 Re8 15.Re1=) 11...fe6 12.d4 (12.d3 d5 13.Na4 Na4 14.Qa4 Nd7 15.Be2=; 12.Rc1 Rc8 13.d4 ed4 14.ed4 c5 15.bc6=) 12...ed4 13.ed4 Rf7 14.Bd3 d5 15.c5+=.

10.Ng5 Rb8 A) 11.Be2 A1) 11...Nb6 12.Ne6 (12.Qc2 Bd7 13.0–0 h6 14.Nf3 Be6 15.d3=) 12...fe6 13.0–0 d5 14.d3 Qd6 15.Rc1=; A2) 11...Bf5 12.0–0 (12.d3 c6 13.0–0 d5 14.cd5 cd5 15.e4=) 12...h6 13.Nf3 Re8 14.d4 c5 15.Re1=; B) 11.Ne6 fe6 12.d4 (12.d3 d5 13.Be2 c6 14.0–0 Qe8 15.Rc1=; 12.Rc1 e4 13.d3 ed3 14.Bd3 Nc5 15.Bc2=) 12...ed4 13.ed4 Qe8 14.Be2 Qf7 15.0–0=; C) 11.Qc2 C1) 11...Rc8 12.d4 (12.Bd3 Kh8 13.0–0 c6 14.f4 cb5 15.Ne6=; 12.Be2 c6 13.d4 ed4 14.ed4 d5 15.c5=) 12...ed4 13.ed4 Nb6 14.Ne6 fe6 15.Bd3+=; C2) 11...Re8 12.Ne6 (12.Bd3 Nf8 13.Ne6 Ne6 14.Nd5 h6 15.Nf6=) 12...fe6 13.Be2 Rf8 14.0–0 c6 15.d4=; C3) 11...Nb6 12.Bd3 g6 13.Ne6 fe6 14.Be2 d5 15.d3+=; C4) 11...Qe8 12.Be2 (12.d4 ed4 13.ed4 Nb6 14.Ne6 fe6 15.Bd3+=; 12.Bd3 Kh8 13.0–0 Nc5 14.f4 Nd3 15.Qd3+=; 12.Rb1 Nb6 13.Bd3 g6 14.Ne6 fe6 15.Ne4+=) 12...Nb6 13.0–0 Qd7 14.f4 Bf5 15.e4+=; C5) 11...Ra8 12.d4 (12.Bd3 Kh8 13.Na4 h6 14.Ne6 fe6 15.Bg6=) 12...h6 13.Ne6 fe6 14.Be2 ed4 15.ed4+=; C6) 11...c6 12.d4 (12.Bd3 h6 13.Bh7 Kh8 14.Ne6 fe6 15.Bg6=) 12...h6 13.Ne6 fe6 14.Rd1 Rc8 15.de5=.

10.Ng5 Nc5 11.d4 ed4 (11...Ncd7 12.Bd3 h6 13.Ne6 fe6 14.0–0 c6 15.f4+=) 12.ed4 h6 13.Ne6 Ne6 14.d5 Nc5 15.Be2=.

10.Ng5 c6 A) 11.d4 A1) 11...cb5 12.Nb5 ed4 13.Nd4 Nc5 14.Qc2 Bd7 15.Nb5=; A2) 11...Rc8 12.Qc2 (12.bc6 bc6 13.Bd3 d5 14.Ne6 fe6 15.Rb1=; 12.Rb1 Bf5 13.Bd3 Bd3 14.Qd3 ed4 15.Qd4=) 12...ed4 13.ed4 Re8 14.bc6 bc6 15.Bd3=; A3) 11...Bf5 12.Qf3 Bc2 13.bc6 Qb6 14.cb7 Qb2 15.ba8Q–/+; B) 11.d3 B1) 11...Rc8 12.Ne6 fe6 13.Rb1 d5 14.Be2 Nc5 15.bc6=; B2) 11...cb5 12.Nb5 (12.Ne6 fe6 13.Nb5 Rc8 14.Be2 e4 15.Bf6=) 12...Bf5 13.g4 Bg6 14.h4 Ne8 15.f4=; B3) 11...Rb8 12.Ne6 fe6 13.Be2 Qe8 14.0–0 d5 15.Rc1=; B4) 11...Nb6 12.bc6 (12.c5 dc5 13.Ne6 fe6 14.bc6 bc6 15.Qc2=; 12.Ne6 fe6 13.c5 dc5 14.bc6 bc6 15.Qb3=) 12...bc6 13.c5 dc5 14.Ne6 fe6 15.Qc2=; B5) 11...d5 12.Ne6 fe6 13.bc6 bc6 14.Rb1 d4 15.Na4=; C) 11.Qe2 cb5 12.Nb5 (12.Ne6 fe6 13.cb5 d5 14.Rc1 Rc8 15.f4+=) 12...e4 13.d3 Nc5 14.de4 Nfe4 15.Ne4=; D) 11.Ne6 fe6 12.d3 (12.d4 cb5 13.Nb5 Ne4 14.Qg4 Rf2 15.Bd3–/+; 12.Be2 d5 13.0–0 e4 14.d3 ed3 15.Qd3=) 12...cb5 13.Nb5 Rc8 14.Rb1 Nc5 15.Be2=.

10.Ng5 Rc8 A) 11.d4 A1) 11...c5 12.de5 (12.Ne6 fe6 13.de5 Ne5 14.Be2 Ng6 15.0–0+=) 12...Ne5 13.Qc2 h6 14.Ne6 fe6 15.Ne2+=; A2) 11...h6 12.Ne6 fe6 13.Be2 c6 14.0–0 ed4 15.ed4+=; A3) 11...ed4 12.Ne6 (12.ed4 Nb6 13.Ne6 fe6 14.Bd3 c5 15.bc6+=) 12...fe6 13.ed4 c6 14.Bd3 c5 15.Qe2+=; A4) 11...c6 12.Qc2 (12.bc6 bc6 13.Bd3 d5 14.Rb1 e4 15.Ne6=) 12...ed4 13.ed4 Re8 14.Ne6 fe6 15.Bd3=; B) 11.Be2 B1) 11...c6 12.Ne6 (12.0–0 d5 13.Ne6 fe6 14.d3 Nb6 15.bc6=; 12.d4 Bf5 13.0–0 d5 14.de5 Ne5 15.cd5=; 12.Rb1 Bf5 13.e4 Bg6 14.bc6 bc6 15.d3+=; 12.bc6 bc6 13.Ne6 fe6 14.Rb1 d5 15.d3=) 12...fe6 13.0–0 cb5 14.Nb5 e4 15.Rb1=; B2) 11...Bf5 12.0–0 h6 13.Nf3 c6 14.Rc1 d5 15.cd5=; C) 11.Ne6 fe6 12.Be2 (12.d4 c6 13.bc6 bc6 14.Rb1 d5 15.Be2=; 12.d3 c6 13.Rb1 d5 14.bc6 bc6 15.Be2=; 12.Rb1 Nc5 13.Be2 e4 14.0–0 d5 15.Qc2=) 12...c6 13.0–0 cb5 14.Nb5 e4 15.Rb1=; D) 11.Qc2 D1) 11...c6 12.Bd3 (12.d4 ed4 13.ed4 d5 14.c5 b6 15.bc6=) 12...cb5 13.Bh7 Kh8 14.cb5 Bd5 15.Qb1+=; D2) 11...Kh8 12.d4 (12.Be2 c6 13.d4 ed4 14.ed4 d5 15.bc6=; 12.Ne6 fe6 13.Be2 c6 14.bc6 bc6 15.Rb1=) 12...ed4 13.ed4 h6 14.Ne6 fe6 15.Bd3+=.

10.Ng5 Qe8 A) 11.d3 A1) 11...Nc5 12.d4 ed4 13.ed4 h6 14.Ne6 Ne6 15.d5+=; A2) 11...Rd8 12.Be2 (12.Rc1 Nb6 13.Ne6 fe6 14.Na4 Nbd7 15.Be2=; 12.Ne6 fe6 13.Qa4 Nc5 14.Qc2 Qg6 15.Rc1=; 12.Qf3 Nc5 13.d4 ed4 14.ed4 Nfd7 15.Nh7=; 12.Rb1 Nb6 13.Ne6 fe6 14.Na4 Nbd7 15.Qd2=; 12.Ra2 d5 13.Qc2 dc4 14.dc4 Bd6 15.Nce4=) 12...Bf5 13.0–0 d5 14.cd5 Nc5 15.e4+=; A3) 11...Rc8 12.g4 (12.Be2 Bf5 13.0–0 h6 14.e4 Bg6 15.Nf3=) 12...Nc5 13.Bg2 Bd7 14.d4 ed4 15.ed4+=; A4) 11...Rb8 12.Be2 (12.Qf3 Nb6 13.Ne6 fe6 14.Rd1 Qg6 15.Qe2=) 12...Bf5 13.0–0 h6 14.Nge4 Ne4 15.Ne4=; A5) 11...Nb6 12.Qf3 (12.Ne6 fe6 13.Be2 Qg6 14.Rc1 d5 15.0–0=) 12...Bc8 13.Be2 h6 14.Nge4 Nh7 15.0–0=; B) 11.d4 B1) 11...c5 12.bc6 (12.Ne6 fe6 13.de5 Ne5 14.f4 Ned7 15.g4+=; 12.de5 Ne5 13.Ne6 fe6 14.f4 Ng6 15.Qf3+=; 12.d5 Bf5 13.Bd3 Bd3 14.Qd3 h6 15.Nf3=) 12...bc6 13.Bd3 ed4 14.ed4 Nb6 15.Ne6+=; B2) 11...ed4 12.ed4 d5 13.Ne6 fe6 14.Bd3 Qf7 15.Qf3=; C) 11.Be2 C1) 11...Nb6 12.Qc2 (12.Ne6 fe6 13.d4 ed4 14.ed4 e5 15.0–0=) 12...Bc8 13.0–0 h6 14.Nge4 Ne4 15.Ne4=; C2) 11...Bf5 12.0–0 Nb6 13.f4 ef4 14.Rf4 Bg6 15.Na4=; D) 11.Qf3 D1) 11...Rb8 12.Be2 (12.Rb1 Nb6 13.Ne6 fe6 14.Qg3 Nh5 15.Qg4=; 12.Rd1 Nb6 13.Ne6 fe6 14.d4 d5 15.cd5+=) 12...Nb6 13.Ne6 fe6 14.Qg3 Qf7 15.d3+=; D2) 11...Qc8 12.d4 (12.Be2 Nc5 13.d4 ed4 14.ed4 Nb3 15.Ne6+=) 12...Nb6 13.Ne6 fe6 14.de5 Nfd7 15.Qg3+=; D3) 11...Nc5 12.Rd1 Bc8 13.d4 Ne6 14.Ne6 fe6 15.de5+=; E) 11.Qc2 Rd8 (11...Nc5 12.d4 h6 13.Nf3 e4 14.Nd2 Nd3 15.Bd3+/–) 12.Bd3 (12.d4 ed4 13.ed4 Nb6 14.d5 Bd7 15.Be2=) 12...Kh8 13.0–0 c6 14.f4 cb5 15.Nb5+=.

10.Ng5 Bf5 11.d3 (11.Qf3 Bg6 12.Qb7 Nc5+= (12...Rb8 13.Qf3 Nc5 14.Qd1 Nfd7 15.Nf3+=) 13.Qc6 h6 14.Nf3 Na4 15.Na4+=) 11...h6 (11...Nc5 12.d4 (12.Be2 Re8 13.0–0 d5 14.cd5 Nd5 15.Nce4=) 12...ed4 13.ed4 Ne6 14.Ne6 fe6 15.Bd3=; 11...Re8 12.Be2 (12.Qf3 Bg6 13.Be2 Nh5 14.h4 Nc5 15.Rd1=) 12...Nb6 13.e4 Bc8 14.0–0 Nfd7 15.Nf3=; 11...Ra7 12.Be2 h6 13.Nf3 Re8 14.0–0 Be6 15.d4=) 12.g4 (12.Qf3 Bg6 13.Nge4 Ne4 14.Ne4 Rb8 15.Be2=; 12.Nf3 Rc8 13.Be2 c6 14.e4 Be6 15.0–0=) 12...Bg6 (worse is 12...hg5 13.gf5 c6 14.Qf3 (14.Bg2+= Rc8 15.h4+=) 14...Nc5 15.Rg1+=) 13.Nf3 Nc5 14.Rg1 (14.g5 hg5 15.Ng5=) 14...a4 (14...Nfd7 15.Nd5=) 15.Nh4 (15.g5=) 15...Bh7 16.Nf5 Nb3 17.Ra2 Nc5 18.d4 ed4 19.Qd4 c6 20.Qf4 Nfd7 (20...Bg6 21.g5 hg5 A) worse is 22.Rg5 Ne6 23.Rg6 Nf4 (23...fg6?! 24.Ne7 Qe7 25.Qg3+=) 24.Rg7 Kh8 25.ef4 d5–/+; B) 22.Ne7?! Qe7 23.Qg5 Rfe8=; C) 22.Qg5=) 21.bc6 bc6 22.Ne4 Ne4 23.Qe4 Qa5 24.Ke2 Bf6 25.Bf6 Nf6 26.Qc6 Rfb8 27.Rd2 (27.Nd6? Rb6 28.Nb7 Qa7–+ (28...Rc6?! 29.Na5 Ra5 30.Rd2–/+)) 27...Rb6 (27...Ra6!? 28.Qf3 Qc3=) 28.Qf3+= Re8 (28...d5 29.Ne7 (29.cd5 Qa6 30.Rd3 Rb2 31.Kd1 Rb1 32.Kc2 Qb7–+) 29...Kh8 30.Nf5+= (worse is 30.cd5 Ne4 31.Qe4 Be4–+)) 29.Nh6 Kf8 30.Bg2 (better is 30.g5!? Qc3 31.Qf4–+ (31.gf6?? Bd3 32.Ke1 Rb1 33.Qd1 Rd1 34.Kd1 Qa1)) 30...Qc3 31.Qf4 (31.Rgd1 Bc2 32.c5 dc5–+) 31...Be4–+ 32.Be4 Re4 33.Qg5 Re5 34.Qf4 gh6 35.Rd4 Rb2 36.Kf3 Qc2 37.Rf1 Qe2 38.Kg2 Qe3 39.Rfd1 Ke7 40.R1d3 Qf4 41.Rf4 Ne4 42.Rd4 Nc5 0–1. Baer,Werner – Wrede,Christian, TT–11 ETC, 2003.

4.a3 b6

5.Nc3 Be7 6.b5 0–0 7.Nf3 h6 8.d4 ed4 9.Qd4 c5 (9...a6 10.Rd1=) 10.Qd3 Bb7 11.Rd1 Bf3 (11...Nbd7!?+=) 12.Qf3 Nbd7 13.Qf4 Nh7 14.Nd5 Ndf6 15.Qg3 a6 16.ba6 Ra6 17.Rd2 (17.Ne7!? Qe7 18.Qd6+/–) 17...Ne4?? ( 17...Ng5 18.Ne7 Qe7 19.Qd6 Qd6 20.Rd6 Nge4+/–) 18.Qg7 1–0. pierred – Dragongod77, GameColony.com, 2005.

5.d3 c5 6.g3 g6 ( 6...Bb7 7.Nf3 Be7=) 7.Bg2+/– d5 8.cd5 Nd5 (8...Bd6 9.bc5 bc5+/–) 9.e4 (9.Be5 f6 10.Nc3 cb4 11.Nd5 (11.Bd5?! bc3 12.Qa4 Nd7+–) 11...fe5 12.Ne3+– (12.Nb4?! a5+–; 12.ab4?! a5+/–)) 9...Nf6+= 10.Be5 Nbd7 (10...cb4? 11.Bf6 Qf6 12.e5 Qe5 13.Qe2 Qe2 14.Ne2+–) 11.Bb2 Bb7 (11...cb4? 12.e5 ba3 13.Na3 (13.Ba8?! ab2 14.Ra7 Ne5+=) 13...Bb4 14.Kf1+–) 12.Nf3 Qe7 13.0–0 Rg8 14.d4 ( 14.b5+/–) 14...Be4?? ( 14...cb4 15.Re1 a6+/–) 15.Re1+– 0–0–0 16.dc5 bc5? 17.Nbd2 Nb6 18.bc5 Nbd5 19.Rc1 Bh6 (19...Bh6 20.c6 Bf3 21.Bh3 Ng4 22.Qf3 Qc7+–; 19...Qb7 20.Ne4 (20.Re4 Ne4 21.Be5 Nd2 22.Nd2 Qc6+–) 20...Ne4 21.Bd4+– (21.Re4?! Nc3 22.Qc2 Ne4+–)). pituflu – arok, chesshere.com, 2007.

5.e3 Bb7 6.Nf3 Be7 7.Be2 0–0 8.0–0 Nbd7 9.Nc3 c5 10.b5 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 h6 14.Qa7 Bf3 (better is 14...Qc7 15.Qa4 Ra8=) 15.Bf3+/– (worse is 15.gf3 Nb8+=) 15...Re8 16.Ra1 Nf8 (better is 16...d5 17.Bd5 Bd6+–) 17.Nd5?? (17.Bc6 N8d7+–) 17...Nd5? (better is 17...e4 18.Be2 Nd5 19.cd5 Bf6+=) 18.Bd5+– (18.cd5?! f5+=) 18...Ng6 19.Bc6 Rf8 20.Qb7 (20.Ra6 Qc8 21.Bd7 Qd8+–) 20...Qb8 21.Ra8 (21.Qb8!? Rb8 22.Be4+–) 21...Qb7+= 22.Rf8 Kf8 23.Bb7 f6 24.f3 Nh8 25.d4 Nf7 26.dc5 dc5 27.Kf2 Bd8 28.Bd5 Nd6 29.Bc3 Bc7 30.e4 g5 31.g4 Kg7 32.h3 Kg6 33.Bd2 h5 34.Be3 hg4 35.hg4 Kg7 36.Bd2 Kg6 37.Be3 Kg7 38.Bd2 Kf8 (38...Kg6 39.Ke3+/–) 39.Be3 (39.Ke3 Bd8+/–) 39...Ke7 (39...Kg7 40.Ke2+/–) 40.Bd2 Kd8 (40...Kf8 41.Kg3+=) 41.Be3 Kc8 (41...Ke7 42.Kg3+=) 42.Bd2 Kb8 (42...Kd8 43.Ke2+/–) 43.Be3 Ka7 (43...Kc8 44.Ke2+/–) 44.Bd2 Ne8 (44...Kb8 45.Ke2+/–) 45.Bc6 (45.Ke2 Bd6+/–) 45...Ng7 (45...Nd6 46.Bd5 Kb8 47.Ke3+/–) 46.Bd5 Ne8 47.Bc3 Bd6 48.Bd2 (48.Ke3 Nc7+=) 48...Nc7 (48...Bc7 49.Ke3+/–) 49.Bc3 Ne8 50.Bd2 Bc7 ˝–˝. Fournier,Frederic – Guest2960584, Partie amicale, 4m + 0s, 2008.

5.Nf3 a5 6.Qa4 Nbd7 7.d4 =.

5.Nf3 Bb7 6.e3 Be7 (6...e4 7.Nd4=) 7.d4 ed4 8.Nd4 (8.Bd4 0–0=) 8...0–0 9.Bd3 (9.Nc3=) 9...Nc6 (9...Bg2 10.Rg1 Bb7 11.Nf5=) 10.0–0 (10.Nc6 Bc6 11.0–0 a6+=) 10...h6 (10...Nd4 11.Bd4 c5 12.Bc3=) 11.Qc2 (11.Nc6 Bc6 12.Nc3 a5+=) 11...Qd7 (11...Ne5 12.Bf5=) 12.Bf5 Qe8 13.Nb5 (better is 13.Nd2+=) 13...Rc8? (better is 13...Qd8!?+=) 14.Bc8+– Qc8 15.N1c3 (better is 15.Rd1!?+–) 15...a6+= 16.Nd4 (better is 16.Nd5 ab5 17.Bf6 Bf6 18.Nf6 gf6 19.cb5=) 16...Ne5 (better is 16...Nd4 17.ed4 Bg2 18.Kg2 Qg4 19.Kh1 Qf3 20.Kg1 Qg4 21.Kh1 Qf3 22.Kg1 Qg4 23.Kh1=) 17.Nf5+/– Bd8 (17...Re8 18.Nd5! Nd5 19.cd5 Bd5 20.f4+–) 18.Nd5!+– Re8 (18...Bd5 19.cd5 Combination; 18...Nd5 19.cd5 Combination) 19.Rfd1 Kh8 (19...Qa8 20.e4+–) 20.Rac1 Ng6 (20...Qe6 21.e4 Kg8+–) 21.Bf6 Bf6 22.Nf6 gf6 23.Nh6 (23.f3 Qe6 24.e4 Ne7+–) 23...Kg7? (better is 23...Kh7 24.Nf7 Qg4+–) 24.Nf5 Kh7 (24...Kg8 25.f3+–) 25.Rd4 (25.f3 Re5 26.e4 Qf8+–) 25...Rh8 (25...Re5 26.Ng3+–) 26.Ne7 Qe6 27.Rh4 (27.Nd5 Rc8+–) 27...Kg7 28.Rh8 Nh8 (28...Kh8 29.Ng6 fg6 30.Qg6+–) 29.Nd5! Qd7 (29...Bd5 30.cd5 Combination) 30.Qc3 (30.Qc3 Qd8 31.e4+–) 1–0. Wall,Bill – FriedChicken, internet, 2004.

5.Nf3 Be7 6.d3 (6.d4 e4 7.Nfd2 c6=) 6...0–0 (6...Nbd7 7.e3=) 7.g3 (7.e3 a5=) 7...Bb7 (7...a5 8.b5=) 8.Nc3 (8.Bg2 a6=) 8...Nbd7 (8...Bf3 9.ef3 c6 10.Bg2+=) 9.Bg2= Re8 10.0–0 c5 11.e4 (11.b5 a6=) 11...Nf8 (11...Qc7 12.Nd2=) 12.Nd5 (12.Nd2 Ng6=) 12...Ne6 (12...Nd5 13.cd5 Bc8 14.Qc2=) 13.Ne7 Qe7 14.Nh4 Nd4 15.Bd4 cd4 16.Nf5 Qd7 (16...Qd8 17.g4 Kh8 18.f4=) 17.f4 g6 18.fe5 de5 19.Qc1 White intends c5 19...Rf8 (19...Bc8 20.Qh6 Nh5 21.Bf3+–) 20.c5 (better is 20.Nh6 Kg7 21.Qg5+/–) 20...Rac8 (better is 20...Qe6!?+/–) 21.Bh3 (21.Nd6 Ne8 22.Nc8 Bc8+–) 21...Qd8 (21...Kh8 22.Qh6 Nh5+–) 22.Nh6 Kg7 23.Bc8 Bc8 24.Qg5 Bh3 (24...bc5 25.bc5 Qe7 26.Nf5 Bf5 27.Rf5+– (27.ef5?! h6 28.Qd2 Qc5+=)) 25.Rf3 (25.Qe5?! Re8 26.Qg5 bc5+–) 25...bc5 26.bc5 Qe7 (26...Be6 27.Qe5 Re8+–) 27.g4 (27.g4 Bg4 28.Ng4+–) 1–0. Cirulis,Ilmars (1905) – Ramos,Francis, FICGS, 2016.

4.a3 Nc6

5.b5 A) 5...Ne7 6.d4 (6.Nf3 a6 7.e3 ab5 8.cb5 Ng6 9.Be2=; 6.Nc3 Bf5 7.d4 Ng6 8.e3 Be7 9.Bd3+=) 6...Ng6 7.Nc3 Be6 8.e3 ed4 9.Qd4=; B) 5...Nd4 6.Bd4 (6.e3 Ne6 7.Ne2 Be7 8.d4 Nd7 9.Nbc3=) 6...ed4 7.Nf3 d5 8.e3 Bg4 9.h3=.

5.e3 Bd7 6.Nf3 d5 (better is 6...e4!? 7.Nd4 Nd4 8.Bd4 a5=) 7.cd5+/– Nd5 8.Ne5 Ne5 9.Be5 c6 10.Nc3 Nc3 11.Bc3 c5? (better is 11...Be6!?+/–) 12.bc5+– Bc5 13.d4 (13.Bg7!? Rg8 14.Bc3 h6+–) 13...Bb6 14.Bd3 Ba5 15.Qd2 Bc3 16.Qc3 Rc8 17.Qb3 Qa5 18.Qb4 Qc7 19.0–0 Qc6 20.f3 Rc7 21.Rfc1! Qc1 22.Rc1 Rc1 23.Kf2 Rc7 (23...b6 24.Bb5+–) 24.e4 (24.Qa5!? Rc8 25.Qa7 Bc6+–) 24...b6 25.d5 Rc5 26.Qd4 Bb5?? (better is 26...0–0+–) 27.Bb5 Rb5 28.Qg7 Rf8 29.Qh7 (better is 29.d6 Ra5 30.Qf6+–) 29...Rb2 30.Kg3 Ra2 31.Qf5 Rg8 32.Kf4 Kf8 33.g4 (better is 33.e5!? Re2+–) 33...Ra3 34.h4 Ra6 (34...Rg6+–) 35.Qc8 (35.Qc8 Kg7 36.Qa6+–) 1–0. Fournier,Frederic (2035) – kevinmoises (1720), Active, 2004.

5.e3 Be6 6.Nf3 (6.b5 Na5 7.Qa4 b6 8.d4 a6 9.d5=; 6.d3 Be7 7.Nf3 a6 8.Be2 0–0 9.0–0=) 6...e4 7.Ng5 Bf5 8.d3 ed3 9.Bd3=.

5.e3 Be7 6.b5 Nb8 7.d4 e4 8.Nc3 c6 9.bc6=.

5.e3 Bg4 6.Be2 Be2 7.Ne2 d5 8.c5 b6 (8...a6 9.Qa4 Qd7 10.0–0=) 9.b5 Na5 10.cb6 ab6 11.Be5 Nc4 12.Bd4 Na3 13.Na3 (13.Qc1 Nc4 14.Ra8 Qa8+/–) 13...Ra3 14.Ra3 Ba3 15.Qb3 Bd6 16.f4 0–0 17.0–0 Bc5 (17...Ne4!? 18.Qd5 Nd2+=) 18.Bf6 Qf6 19.Qd5 (19.d4!? Bd6 20.Qd5+/–) 19...Rd8 20.Qa2 h6 (20...Qe7!? 21.Rf3 Rd3+/–) 21.d4 Bb4 22.Qc4 Bd6 (22...Qe7!? 23.Qd3 Re8+/–) 23.e4+– Qe6 24.d5 (better is 24.Qe6 fe6 25.Rc1+–) 24...Bc5? (better is 24...Qg4+/–) 25.Qc5!!+– bc5 (25...Qe4 26.Nc3 bc5 27.Ne4 Rd5+–) 26.de6 fe6 27.Rc1 Rd2 (27...Kf7 28.Kf2+–) 28.Kf1 Rd7 29.Rc5 Kf7 30.Kf2 Kf6 31.Ke3 Ke7 32.Nd4 Kd6 (32...Kf7 33.e5 g6 34.g4+–) 33.Rc6 Ke7 34.Re6 Kf7 35.Rc6 Kf8 36.Rc7! Rc7 37.Ne6 (37.Ne6 Ke7 38.Nc7+–) 1–0. Matozan,Zvonko (2045) – Gros,Damir, Treber Memorial 4th, 2007. (=1.a3 e5 2.b4 Nf6 3.Bb2 d6 4.c4 Nc6)

5.Nf3 =+.

5.e3 Bf5

6.b5 Ne7 7.Be2 a6 8.Nf3 ab5 9.cb5=.

6.Nc3 Qd7 7.b5 Ne7 8.Nf3 a6 9.Be2=.

6.Be2 Be7 7.b5 Nb8 8.Nf3 a6 9.0–0=.

6.Nf3 Ne4 7.d3 Ng5 8.Nbd2 Be7 9.Ng5 Bg5 10.Nf3 Bf6 11.Be2 0–0 12.0–0 Qe7 13.e4 Bg6 14.Bc1 Rad8 15.Be3 Nd4 16.Nd4 ed4 17.Bd2 Be5? (17...Bh4+=) 18.g3?? (18.f4 f5 19.fe5 fe4 20.ed6 Qd6+–) 18...Qe6?? (18...f5 19.ef5 Bf7 20.Re1+/–) 19.Bg4?? (19.f4 f5 20.ef5 Bf5 21.fe5 de5+–) 19...Qf6?? (19...f5 20.Bh3=) 20.Qf3?? (better is 20.f4+–) 20...Qf3= 21.Bf3 c5 22.b5 a6 23.a4 a5? (better is 23...Rb8+=) 24.Ba5+– Ra8 25.Bd2 b6 26.Ra2 f5 (26...Rfb8+–) 27.ef5 Bf5 28.Ba8 Ra8 29.Rfa1 (better is 29.Ra3+–) 29...Bd3+/– 30.a5 (30.Rc1!?+/–) 30...Bc4+= 31.ab6?? (31.Ra3 ba5 32.Ra5 Re8+=) 31...Ra2 (better is 31...Ba2 32.b7 Rb8 33.Ra2 Rb7–+) 32.Ra2+– Bb5 33.b7 d5 34.Ra8 Kf7 35.b8Q (better is 35.Bf4 Bc6 36.Ra7+–) 35...Bb8 36.Rb8 Ke6?? (better is 36...Bd7+–) 37.Rb5 g6 (37...c4 38.Rb6 Kf5 39.f3+–) 38.Rc5 Ke5 (38...Kd6 39.Rb5 Ke5 40.f3+–) 39.Rc6 (39.Rc7 h5+–) 39...h5 (39...Ke4 40.Rc7+–) 40.Kf1 g5 41.Ke2 g4 (41...Kf5+–) 42.Kd3 Kf5 Plans Bh6 43.Kd4 h4 44.Bf4 1–0. Fournier,Frederic – flaco2008, Active, 2008.

6.Nf3 Be7 7.d4 ed4 8.Nd4 Nd4 9.Bd4=.

4.a3 Nbd7

5.Qc2 c5 6.b5 (6.Nf3 Be7+=) 6...Be7 7.e3 (7.Nf3 a6+=) 7...0–0 (7...a6 8.ba6 ba6 9.Nf3+=) 8.Bd3 a6 (8...Re8 9.Nf3=) 9.ba6 ba6 10.Nf3 (10.Nc3 Rb8+=) 10...Bb7 (10...Rb8 11.Nc3+=) 11.Nc3 Nb6 (11...Rb8 12.Rb1+=) 12.Ng5 Pawn h7, live or die! (12.0–0 Bf3 13.gf3 Rb8=) 12...g6 (12...h6 13.Nh7 Nh7 14.Bh7 Kh8 15.Be4 Be4 16.Ne4 Nc4 17.Qc4=) 13.Nge4 (13.0–0 d5=) 13...Ne4+= 14.Ne4 (14.Be4 Be4 15.Qe4 f5+=) 14...Qd7 (14...f5 15.Ng3 Bg2 16.Rg1+=) 15.f3 Rad8 (15...f5 16.Ng3+=) 16.Ng3 d5 (16...Na4 17.Rb1+=) 17.cd5 (17.Be5 Nc4 18.Bc4 dc4=) 17...Nd5 (17...c4 18.Bc4 Nc4 19.Qc4 Bd5 20.Qc2=) 18.Bc4 (18.Be2 Qc7=) 18...Nb6 19.Ba2 (19.Be2 Bf6=) 19...Qd6 (19...Bf6 20.Rb1=) ˝–˝. Pietruszewska,Paulina – Sobierska,Wioletta, POL–ch U12 Girls, 2001.

5.d4 e4=+.

5.d4 Be7+=.

5.e3 a6 6.Nf3 (6.d4 Be7=) 6...c5 (6...e4 7.Nd4=) 7.b5 (7.d4!?=) 7...ab5 8.cb5 b6 (8...e4 9.Nh4+=) 9.Nc3 Bb7 10.Be2 Qc7 (10...Be7 11.0–0+=) 11.0–0 c4 (11...d5 12.d3=) 12.Rc1 d5 13.d3 Ba3 14.Ba3 Ra3 15.dc4 dc4 16.Nb1 (16.Nd2 0–0+=) 16...Ra5 (16...Ra1 17.Rc4 Nc5 18.Qd2=) 17.Bc4= Nc5 18.Nbd2 0–0 19.Nb3 (better is 19.Qc2=) 19...Ra4?? (better is 19...Nb3 20.Bb3 Qe7+=) 20.Nc5+– Rc4 21.Rc4 bc5 22.Qc1 (22.Qc2 Bf3 23.Rc5 Qb7 24.gf3 Nd7+–) 22...Rc8 23.Rd1 e4?? (better is 23...Bd5 24.Rc3 Qe7+/–) 24.Rc5!!+– 1–0. Rohrbacher – Baumann, Schwetzingen–ch, 1990.

5.e3 d5 6.Nf3 dc4 7.Bc4 Bd6 8.0–0 0–0 9.d3 e4 10.de4+= Ne4 11.Qc2 Nef6 12.Bb5 Nb6 13.Ng5 g6 14.e4 Bh2= 15.Kh2 Ng4 16.Kg1 Qg5 17.Qc3 f6=+ 18.Bc4 Kg7 19.Re1?? Qh4 20.Qh3 Qf2 21.Kh1 Qe1 22.Bf1 Qf1# 0–1. Schiffner,Alexander – Hasenclever,Leonard, GER–chT U12, 2004.

5.e3 Be7 6.d4+=.

5.e3 g6 6.Nf3 Bg7 7.d4 ed4 8.Bd4 0–0 9.Nbd2 Re8 10.Be2 Nf8 11.0–0 Bf5 12.Re1 Ne6 13.Bb2 Ne4 14.Bg7 Kg7 15.Ne4 Be4 16.Bd3 Bd3 17.Qd3 Qf6 18.Rac1 Re7 19.Nd4 Rae8 20.Ne6 Re6 (worse is 20...Qe6 21.Qd4 Qe5 22.Qa7+/–) 21.Kf1 h5 22.Qd4 Qd4 23.ed4 Kf6 24.Re6 Re6 25.Re1 Kf5 26.Re6 fe6 27.Ke2? (better is 27.f3=) 27...Ke4–+ 28.c5 Kd4 29.cd6 cd6 30.Kd2 g5 31.f3 (31.h3–+) 31...e5 32.g3 (32.b5 Kc4 33.Kc2 Kb5 34.Kb3–+) 32...b5 33.h4 (33.Ke2–+) 33...gh4 34.gh4 d5 0–1. Fournier,Frederic – MUZAFAR, Active, 2012.

5.g3 a5!?+=.

5.g3 Nb6 6.e3–/+.

5.g3 Be7 6.Bg2=+ 0–0 7.d3 (7.d4 e4=+) 7...c6 8.Nf3 a5 9.0–0 ab4 10.ab4 Ra1 11.Ba1 b5 (11...Qb6 12.Bc3=+) 12.Nbd2 (12.cb5 cb5 13.Nc3 Qb6=+) 12...bc4 (12...Qb6 13.Bc3=) 13.Nc4 (13.dc4 Qb6 14.Bc3 Re8=) 13...Nb6 14.Qc2 (14.Na5 Qd7=) 14...Nc4 (14...Nbd5 15.Bc3=+) 15.Qc4 Bb7 (15...Qb6 16.Rc1=+) 16.Qb3 (16.Rc1 Nd5=) 16...Qc7 (16...Re8 17.d4 e4 18.Nd2=+) 17.Rc1 (17.Qc2 Ra8=+) 17...h6 (17...Rb8 18.Ng5 d5 19.Qc3=+) 18.Nd2 (18.d4 e4 19.Nd2 d5=) 18...Rb8 19.Qc3 Rc8 (19...Qb6 20.d4 d5 21.de5 Bb4 22.Qd3–+) 20.Nb3 (20.d4 ed4 21.Qd4 c5=) 20...Nd7 (20...Qb6 21.d4 Nd5 22.Qc4=+) 21.Na5 Nb8 (21...Bg5 22.e3 Nb8 23.b5+/–) 22.b5 Bf6? (22...Bg5 23.e3 Ba8+/–) 23.Nb7+/– Qb7 24.bc6 Qc7 25.Qc4 Qe7 (25...Bg5 26.e3+/–) 26.c7 Nd7 27.Bb7 (27.Qe4 Nc5 28.Qf5 Rc7+=) 27...Nb6+/– 28.Qc6 (28...Rc7 29.Qc7 Qc7 30.Rc7+–; 28.Bc8 Nc4 29.Rc4 d5+–) 1–0. Ruther,R – Unger,M, corr SOK, 1996.

5.g3 g6 6.Bg2= Bg7 (6...Nb6 7.d3=) 7.d3 (7.Nf3 Nb6 8.d3 0–0=) 7...0–0 (7...a5 8.Nf3=) 8.e3 (8.Nf3 Re8=) 8...Nh5 (8...a5 9.Nf3=) 9.Bf3 f5 (9...Re8 10.Bh5 gh5 11.Qh5=) 10.Bh5+= gh5 11.Qh5 Nf6 (11...a5 12.Nd2=) 12.Qh4 (12.Qg5 h6 13.Qg6 Bd7=) 12...Qe8 (12...a5 13.Qg5=) 13.Nc3 (13.Nd2 Be6+=) 13...c6 (13...Be6 14.Nge2+=) 14.Nge2 (14.Nh3 b5+=) 14...Ng4 15.Rg1 (15.Qg5 h6 16.Qh4 e4+=) 15...Rf6 16.Qh3 (16.e4 Rh6 17.Qg5 Nh2+= (worse is 17...Rh2 18.ef5 Qh5 19.Qd8 Bf8 20.Ne4=)) 16...Rh6 17.Qf1 Nh2 18.Qg2 Ng4 (18...Qh5 19.0–0–0+=) 19.Rh1 Rh1 20.Qh1 Be6 21.f3 (21.e4 Qd7+=) 21...Nf6 (21...Ne3!? 22.Kd2 d5–/+) 22.Qh4= a5 (22...d5 23.cd5 cd5 24.Rc1=) 23.b5 a4 (23...d5 24.d4 Nd7 25.bc6 bc6 26.Rb1+=) 24.Kf2 (24.Rb1 d5=) 24...Qh5 (24...e4 25.Rd1+=) 25.Qh5 Nh5 26.Rb1 (26.Rh1 Nf6=) 26...Nf6 27.Ba1 Nd7 28.Nc1 (28.e4 Nc5 29.Ke3 fe4 30.Ne4 Ne4 31.Ke4 d5 32.cd5 cd5 33.Ke3 d4 34.Kd2 Re8+=) 28...Nc5 (28...Kf7 29.e4+=) 29.bc6= bc6 30.Rb6 Bd7 (30...e4 31.d4 (worse is 31.de4 fe4 32.Rc6 ef3–/+) 31...Nb3 32.Nb3 ab3 A) worse is 33.Rb3 Bc4 34.Rb4 Bd3+= (worse is 34...Ra3 35.Rc4 Ra1 36.Rc6+=); B) 33.Rc6 Ra3 34.Bb2+=) 31.N3a2 (31.N3e2 Ra6 32.Rb8 Kf7=) 31...Ne6 (31...Kf7 32.d4 Ne6 33.de5 de5 34.Nb4=) 32.Nb4 (32.Rb7 Rd8=) 32...Rc8 33.Ne2 Nc5 (33...Kf7 34.d4=) 34.Bc3 e4 (34...Kf8 35.d4 Nb3 36.de5 de5 37.Nd3+=) 35.d4 (35.Bg7 ed3 36.Bd4 de2 37.Bc5 dc5 38.Nd3+/–) 35...Nd3 (35...ef3 36.dc5 dc5 37.Bg7 cb4+/–) 36.Nd3+/– ed3 37.Nf4 c5 38.Rd6 cd4 (38...Be8 39.dc5 Bc3 40.Nd5 Rc5 41.Nc3 Rc4 42.Rd3+/–) 39.Bd4 (39.Rd7 dc3 40.Nd3 c2–/+) 39...Bd4? (better is 39...Be8!? 40.Bg7 Kg7+/–) 40.Rd4+– (40.Rd7?! Bb2 41.Rd3 Rc4+/–) 40...Be8 41.Nd3 Bf7 (41...Kf7 42.e4 fe4 43.fe4+–) 42.Ne5 Rb8 (42...Be6 43.f4+–) 43.c5 (43.g4 Be6+–) 43...Rb2 44.Ke1 (44.Kg1 Bb3 45.c6 Rc2+–) 44...Bb3 (44...Rb3 45.Kd2 Rb2 46.Kd3 Rb3 47.Ke2 Rb2 48.Rd2 Rd2 49.Kd2+–) 45.Rd7 (45.Rd7 Rb1 46.Ke2 Rb2 47.Kd3+–) 1–0. Remizov,Yuri – Salov,Sergei (2240), Moscow Tal mem, 1992.

4.a3 Be6

5.Qc2 a5 6.b5 Be7 7.Nf3 Nbd7 8.e4 Nc5 9.Nc3 0–0=.

5.Qc2 Nc6 A) 6.Nf3 Be7 (6...Bg4 7.b5 Ne7 8.h3 Bf3 9.ef3 Ng6=) 7.e4 Bg4 8.Be2 0–0 9.0–0 a6=; B) 6.e3 Be7 7.Be2 e4 8.Nc3 Bf5 9.Nh3 a5=; C) 6.e4 Be7 7.Nf3 Bg4 8.Be2 0–0 9.b5 Na5=.

5.Qc2 Be7 6.e4 (6.Nf3 a5 (6...Nc6 7.e4 Bg4 8.Be2 0–0 9.0–0 a6=) 7.b5 Nbd7 8.d4 ed4 9.Nd4 0–0=) 6...0–0 (6...a5 7.b5 0–0 8.Nf3 Bg4 9.Be2 Nbd7=) 7.Nf3 Nbd7 (7...a5 8.d4 ab4 9.ab4 Ra1=) 8.d4 ed4 (8...a5 9.Bd3 ab4=) 9.Nd4 c6 (9...a5=) 10.Bd3 Qc7 (10...Ne5 11.Be2=) 11.0–0 (11.f4 Nb6 12.c5 dc5 13.bc5 Nc8+=) 11...Rfd8 12.Nd2 a6 13.f4 Nf8 14.f5 (14.e5 de5 15.fe5 Ng4 16.Ne6 Ne6 17.Bh7 Kh8+=) 14...Bd7+= 15.a4 (15.N4f3 a5+=) 15...d5 16.e5 (16.cd5 Ng4 17.N4f3 Ne3+=) 16...Qe5 (16...Qe5 17.Rfe1 Qc7 18.Re7 Qd6+–). willow27 – savage13, ChessWorld.net, 2007.

5.e3 a5 6.Nf3 (6.b5 Be7 7.d4 ed4 8.Bd4 0–0 9.Qf3 Qc8=) 6...ab4 7.ab4 Ra1 8.Ba1 Nc6 9.b5 Nb8=.

5.e3 g6 6.Nf3 Bg7 7.Be2 0–0 8.d3 c6 9.Ng5 Bf5 10.e4 Bd7 11.Nc3 Na6 12.0–0 Nc7 13.a4 h6 14.Nf3 Ne6 15.b5 Nf4 16.Ba3 Bg4 17.Ne5 Ne2–/+ 18.Ne2 de5 19.f3 Be6 20.Bf8 Bf8 21.bc6 Bc5 22.Kh1 bc6 23.Qc2 Nh5 24.f4 ef4 25.Nf4 Qh4 26.Nh5 Qh5 27.Qd1? Bg4–+ 28.Qd2 Bd6 29.h3 Qe5 30.Kg1 Qh2 31.Kf2 Bf4 32.Qc2 Bh3 33.Ke1 Bg4 34.Rf4 Qf4 35.Rb1 Qe3 36.Kf1 Rd8 37.Rb3 Rd6 38.Rb8 Kg7 39.Qf2 Qc1 40.Qe1 Rf6 41.Kg1 Qe1 42.Kh2 Qf1 43.Rg8 Kg8 44.a5 (44.e5 Rf2 45.Kg3 Rg2 46.Kh4 g5#) 0–1. Aubertin,Tim – Ratayczak,Hauke, SEM Meister qual2, 2004.

5.Nf3 Bc4–/+ 6.e3 Be6 7.Be2 Nbd7 8.d3 Be7 9.0–0 0–0 10.h3 Ne8 11.Nbd2 f5 12.d4 e4 13.Ne1 Bf6 14.Nc2 d5 15.f3 c6 16.fe4 fe4 17.Nb3 Bh4 18.Nc5 Nc5 19.dc5 Qg5 20.Rf8 Kf8 21.Qf1 Kg8 22.Be5?? (better is 22.Qf4!?–/+) 22...Bh3 (better is 22...Qe5 23.Qf4 Qf4 24.ef4–+) 23.Nd4?! (23.Bf4 Qg6 24.Nd4–+) 23...Qe5 24.gh3 Nc7 25.Qg2 Rf8 (better is 25...Bg5 26.Nc2 Be3 27.Kh1–+) 26.Rf1 Rf6 27.Rf6 Bf6 28.Bg4 Nb5 29.Nb5 cb5 30.Qe2 Qa1 31.Kg2 Qa3 (31...Kf8 32.Qb5 Qb2 33.Kf1–+) 32.Be6? (better is 32.Qb5!? Qb2 33.Kf1 Qc1 34.Kg2 Qd2 35.Kf1+=) 32...Kf8 33.Bd5 Qb4 34.Be4?? (34.Qc2–+) 34…Qe4 (34...Qe4 35.Qf3 Qf3 36.Kf3 a5–+) 0–1. Fournier,Frederic (1905) – rflrssdlrc (1860), Active (2/0), 2004.

5.d3 a5

6.Nf3 ab4 7.ab4 Ra1 8.Ba1 Be7 9.e3 0–0=.

6.Nf3 Be7 7.b5 c6 8.e4 cb5 9.cb5=.

6.Nf3 Be7 7.e3 ab4 8.ab4 Ra1 9.Ba1 0–0=.

5.d3 Be7

6.e3 0–0 7.Nf3 Nc6 8.Be2 Re8 9.0–0 a6=.

6.e3 a5 7.Nf3 0–0 8.b5 Nbd7 9.Be2=.

6.e3 a5 7.Nf3 ab4 8.ab4 Ra1 9.Ba1 0–0=.

6.Nf3 0–0 7.e3 Nbd7 8.Be2 a5 9.0–0 c6=.

6.Nf3 a5 7.e3 0–0 8.b5 c6 9.Nc3=.

6.Nf3 a5 7.e3 ab4 8.ab4 Na6 9.Bc3 0–0=.

6.Nf3 Nbd7 7.e3 a5 8.Be2 0–0 9.0–0 c6=.

6.g3 a5 (6...0–0 7.Bg2 c6 8.Nf3 Qb6 9.Nc3 Nbd7=) 7.Bg2 c6 8.Nf3 ab4 9.ab4 Ra1+=.

5.e3 Nc6

6.b5 Na5 7.Qa4 b6 8.d4 a6 9.d5=.

6.b5 Nb8 7.Nf3 a6 8.Nc3 Be7 9.d4 Nbd7=.

6.b5 Ne7 7.Nf3 c6 8.Nc3 cb5 9.Nb5 a6=.

6.d3 a6 7.Nf3 Be7 8.Be2 Qd7 9.d4 ed4=.

6.d3 Be7 7.Nf3 0–0 8.Be2 Re8 9.0–0=.

5.e3 a5 6.b5 (6.Nf3 ab4 7.ab4 Ra1 8.Ba1 Bf5 9.Be2=) 6...Be7 7.Nf3 Nbd7 8.Be2 Nb6 9.d3=.

6.Nf3 e4 7.Ng5 Bf5 8.d3 ed3 9.Bd3=.

6.Nf3 Ne4 7.d3 Nf6 8.Nbd2 Be7 9.Be2 0–0 10.0–0 Bg4 11.h3 Bh5 12.b5 Na5 13.Bc3 b6 14.d4 ed4 15.Nd4+/– Be2 16.Qe2 Ne4?? 17.Ne4+– Bf6 18.Ba5 ba5 19.Nc6 Qd7 20.Nf6 gf6 21.Na5 Qe6 22.Nc6 Kh8 23.Nd4 Qd5 24.cd5 Rg8 1–0. guest723 – guest647, ICS blitz, 2000.

6.Nf3 Be7 7.b5 Na5 8.Qa4 b6 9.d4 a6=.

6.Nf3= Be7 7.d4 ed4 8.ed4 d5=.

6.Nf3= Be7 7.Be2 0–0 8.0–0 Re8 9.d4 ed4 10.ed4 d5 11.c5 Ne4 12.Bd3 Bf5 13.Qc2 a6 14.Nc3 Bf6=+ 15.Ne2 Bg6 16.Nf4 Ng5 17.Ng5 Bd3 18.Nd3 Bg5 19.f4 Bf6 20.Ne5 g6 21.Rf3 Ne7 22.g4 Bg7= 23.Qg2 f5 24.Rh3 Qc8 25.g5+= Be5 26.de5 Qe6= 27.Qg3 Rf8 28.Rh6 Rf7 29.h4 Kh8 30.h5 Rg8 31.Qh3 Rgg7 32.Kf2 c6 33.Rh1 Kg8 34.Bd4 Kh8 35.a4 Kg8 36.Qd3 Kh8 37.b5 ab5 38.ab5 Kg8 39.bc6 bc6 40.Rb1 Rf8 41.Rb6 Rc8 42.Qa6 Kf8 43.Rb7 Ng8?? 44.Rg7+– Kg7 45.Qb7 Ne7 46.hg6 hg6 47.Qe7!! (47...Qe7 48.e6 Qf6 49.Bf6 Kf8 50.Rh8#) 1–0. Gomez – Thrash, National op Las Vegas, 1996.

6.Nf3 Bg4 7.b5 Nb8 8.Be2 a6 9.0–0 ab5=.

5.e3 Nbd7

6.d4 ed4 7.ed4 Qe7 8.Qe2 d5 9.c5 c6 10.f4 Ne4=+ 11.Nf3 0–0–0 12.b5 Nb8 13.Nc3 Nc3 14.Bc3 Qf6 15.Ne5 Qf4 16.bc6 Nc6 17.Nc6 bc6 18.Qa6 Kd7 19.Qa7 Ke8= 20.Be2 Qe4 21.Kd2 Qg2 22.Raf1 g6 23.Rhg1 Bh6 24.Kd1 Qe4 25.Qb6 Bf4 26.Qb2? Rb8–+ 27.Bb4 Bh2 28.Rh1 Bf4 29.Rh4 g5 30.Rhf4 gf4 31.Bf3 Qd3 32.Ke1 Bh3 33.Rf2 Kd7 34.Be2 Qg3 35.Qd2 Qg1 36.Bf1 Rhe8 37.Kd1 Bf1 38.Qf4 Be2 39.Kc2 Qd1 40.Kb2 Kc8 41.Rg2 Bd3 42.Kc3 f5 43.Rd2 Qc1 44.Kb3 Bc4 45.Ka4 Ra8 46.Ba5 Ra5! 47.Ka5 Qa3 (47...Qa3 48.Kb6 Qa6#) 0–1. dannyboy238 – Argento1960, ChessWorld.net, 2004.

6.d4 ed4 7.Bd4 c5 8.Bb2 cb4 9.ab4 d5 10.c5 b6 11.Bd4 bc5 12.bc5 Bc5 13.Bc5 Nc5 14.Bb5 Bd7 15.Bd7 Qd7 16.Ne2 0–0 17.Nbc3 Nce4 18.0–0 Nc3 19.Nc3=+ Rfd8 20.Qd4 Rdc8 21.Rfd1 Rc4 22.Qd3 Rac8 23.Nd5 Nd5 24.Qd5 Qd5=+ 25.Rd5 Rc1 26.Rd1 Rd1 27.Rd1 a5 28.Kf1 Kf8 29.Ra1 Rc5 30.Ke2 Ke7 31.e4 Kd6 32.Ke3 Rb5 33.f4 Kc6 34.g4 Rb3 35.Kd4 Kb6 36.e5 Rb4 37.Ke3 a4 38.h4 Kb5 39.Ra3 Rb3 40.Rb3 ab3 41.Kd2 Kc4 42.Kc1 Kd5 43.Kb2 Ke4 44.Kb3 Kf4 –+. Trkn – JS, Casual Game, 2001.

6.Nf3 Nb6 7.Qc2 =.

6.Nf3 e4 7.Nd4 Be7 8.Be2 Ne5 9.Ne6 fe6 10.Be5 de5 11.Nc3 0–0 12.0–0 c5 13.b5 a6 14.a4 ab5 15.ab5 (better is 15.cb5!? Qd6 16.Qc2+/–) 15...Ra1= 16.Qa1 Nd7?? (better is 16...Qd2 17.Qa3 Qd7=) 17.Rd1 Bf6 18.Ne4 b6 19.Nf6 (better is 19.d3!?+–) 19...Qf6+/– 20.f3 Qg5 21.Qa7 Qf6?? (better is 21...Qe7+–) 22.Qd7 e4 23.f4 e5 24.Qd5 Kh8 25.Qe5 Qg6 26.Bh5 Qh6 27.Qg5 Qd6 28.Qe5 Qd3?? 29.Qc3 Qd6 30.Ra1 h6 31.Ra7 Rf6 32.Bg4 Qb8 33.Rd7 Qe8 34.Qe5 Qf8 35.Qc7 Kh7 36.Rd8 Qf7 37.Qf7 Rf7 38.Rd6 g6 39.Be6 Ra7 40.Kf2 Ra2 41.Ke2 Ra1 42.Rb6 Rg1 43.Kf2 Rd1 44.Rd6 h5 45.b6 Rb1 46.Bd5 Rb2 47.Be4 Kg7 48.b7 Kf8 49.Rd8 Ke7 50.b8Q Rb8 51.Rb8 Kd6 52.Rb5 h4 53.Kf3 h3 54.gh3 Ke7 55.Kg4 Kf6 56.Rc5 g5 57.Rd5 gf4 58.ef4 Ke6 59.c5 Kf6 60.c6 Ke6 61.c7 Kf6 62.c8Q Kg7 63.Qc6 Kf7 64.Rd7 Ke8 65.Qc8 1–0. Fournier,Frederic (1960) – eupevi (2035), Active (5/0), 2004.

6.Nf3 g6 7.d4 e4 8.d5 Bg4 9.h3 ef3 10.hg4 fg2 11.Bg2 Ne5 (11...Bg7!?+=) 12.g5+– Nfg4 13.Qe2 Qg5 14.f4 Qf5 15.fe5 Bg7 (better is 15...Ne5 16.Bd4 Bg7+–) 16.ed6 Bb2 17.Qb2 0–0–0 18.Rf1 (better is 18.Bh3!? Qe4 19.Bg4 Qg4 20.dc7+–) 18...Qd3 19.dc7 Rde8 20.e4 Ne3 21.Kf2 Ng2 22.Kg2 Qe4 23.Kg3 h5 (23...Qc4 24.Qf6 Qd5+=) 24.Qf6+– (24.Rf7 Qg4 25.Kh2 Re2 26.Qe2 Qe2 27.Kg1 Qb2–+) 24...Qg4 25.Kh2 h4 26.Qf3 Re2 27.Kh1 Qf3 28.Rf3 Re1 29.Kh2 Kc7 30.Rf7 Kb8 31.Rf2 h3 32.Rfa2 Rhe8 33.Kh3 Rh1 34.Kg2 Reh8 35.Rf2 g5 36.c5 g4 37.d6 Kc8 38.Rf8! Rf8 39.Kh1 Rf1 40.Kg2 Rd1 41.a4 Kd7 42.a5 a6 43.Kg3 Rg1 44.Kf4 Kc6 45.Kf5 g3 46.Kf4 Kd7 47.Kf3 Ke6 48.b5! ab5 49.c6! Kd6 50.cb7 Kc7 51.a6 b4 52.a7 Kb7 53.a8Q Kc7 54.Qa7 (54.Qa7 Kc8 55.Qc5 Kd7 56.Ra7 Ke6 57.Qc6 Ke5 58.Ra5 Kd4 59.Rd5) 1–0. Fournier,Frederic (1745) – madarn (1745), rated blitz game (2/12), 2002.

6.Nf3 Be7

7.Nc3 0–0 8.Be2= Nb6 9.d3 Nfd7 10.0–0 f5 11.e4 fe4 12.Ne4 Nf6 13.Nfg5 Bf5 14.Ng3 Bg6 15.Ne6+/– Qd7 16.Nf8 Rf8 17.a4 Nc8 18.a5 c6 19.d4 e4 20.d5 cd5 21.cd5 a6 22.Rc1 Bd8 23.Bf6 Rf6? 24.Bg4 Bf5 25.Nf5 Rf5 26.Qc2 Ne7 27.Qe4 Re5 28.Qe5! Qg4 (28...de5 29.Bd7) 1–0. Fournier,Frederic – Kessler,Meinrad (1635), PCM–2003–G4.29, 2005.

7.d4 ed4 8.Nd4 Bg4 9.Be2 Be2 10.Qe2 0–0 11.0–0 Re8 12.Nd2 Bf8 13.N2b3 g6 14.Rac1 Bg7 15.c5 dc5 16.Nc5 Nc5 17.bc5 c6 18.Rfd1 Qe7 19.Nf3 Rad8 20.Rd8 Rd8 21.Bd4 Qc7 22.Qb2+= Qe7 23.Rb1 Rb8 24.a4 Ne8 25.a5 Bd4 26.ed4 Nc7 27.Qd2 Nb5 28.Re1 Qd7 29.h4 Rd8 30.h5 Nd4? 31.Nd4+– Qd5 32.h6 f5 33.Re7 Qc5 34.Qe3 (34.Qe3 Rf8 35.Qe6 Kh8 36.Nc2+–) 1–0. schaep1 – Argento1960, ChessWorld.net, 2004.

7.Be2 0–0 8.0–0 =.

7.Be2 h6 8.0–0 0–0 9.d4+= ed4 10.Bd4 Re8 11.Nbd2 d5 12.cd5 Bd5 13.Nc4 Ne4 14.Nfd2 Ndf6 15.Qc2 Nd2 16.Qd2 Ne4 17.Qb2 Bf6 18.Bf6 Qf6 19.Qf6 Nf6 =. BeerClark – Argento1960, ChessWorld.net, 2004.

7.Be2 h6 8.0–0 Nb6 9.c5 Nc4 10.Bc3 dc5 11.Ne5 Ne5 12.Be5 =.

7.Be2 h6 8.d3 c5 9.b5 0–0 10.Nc3 Qc7 11.e4 b6 12.a4 a5 13.0–0 Nh7 14.Nd5 Bd5 15.ed5 Ndf6 16.h3 Rfe8 17.Re1 Kh8 18.Nh4 g6 19.Nf3 Ng8 20.Bf1 Ng5 21.Ng5 Bg5 22.Bc1 Bc1 23.Rc1 f5 24.g3 Kh7 25.Bg2 Nf6 26.Qc2 Qg7 27.Re2 Kh8 28.Rce1 Re7 29.f4 Nd7 30.fe5 Re5 31.Re5 Ne5 32.Kh2 Re8 33.Qd2 g5 34.Re2 Re7 35.Rf2 Rf7 36.Qe3 g4 37.h4 Kh7 38.Kh1 h5 39.Qd2 Qg6 40.Rf1 (40.d4 cd4 41.Qd4 Nd7+=) 40...Kg7 (40...Qh6 41.Qe2=) 41.Qe2 (41.d4!? Nd7 42.Kh2+=) 41...Rf6 42.Rd1 Nf3?? (better is 42...f4 43.Be4 Qf7+=) 43.Bf3+/– gf3 44.Qf3 f4 (44...Qg4!? 45.Kg2 Rg6 46.Qg4 fg4+–) 45.gf4+– (45.gf4 Kf7 46.Rg1+–) 1–0. Fournier,Frederic – FOFOL, Partie amicale, 3m + 0s, 2008.

7.Ng5 Bg4 8.f3 Bh5 =.

5.e3 Be7

6.d4 ed4 7.Bd4 Nc6 8.Nf3 0–0 9.Bd3+=.

6.Nf3 0–0 7.Nc3 Nbd7 8.Be2 Nb6 9.d3 c6 10.0–0 h6 11.e4 a5 12.b5 Qc7 13.Rc1 Qb8 14.Rb1 a4 15.Qd2 Nfd7 16.bc6 bc6 17.Nd1 Nc5 18.Qc2 Bf6 19.d4 Nb3 20.de5 de5 21.Ne3 Nd7 22.Rfd1 Ndc5 23.Nf1 Qc7 24.Ng3 Nd7 25.h3 Be7 26.Nf5 Bc5 27.N3h4 Kh7 28.Nf3 f6 29.Ne1 g6 30.Nh4 Bb6 31.Nd3 Ndc5 32.Nb4 Rfd8 33.Nf3 Kg7 34.Na2 Qb7 35.Nb4 h5 36.Ne1 Nd4 37.Bd4 Rd4 38.Rd4 ed4 39.Bf3 Bd7 40.Qd1 Nb3 41.Ned3 Bc7 42.Nb2 Be5 43.N4d3 c5 44.Ne5 fe5 45.Nd3 Qc7 46.Bh5 Be6 47.Be2 Bc4 48.Nb2 Be6 49.Bc4 Bc4 50.Nc4 Rf8 51.Qc2 Rb8 52.Qd3 ˝–˝. Benassi,Aspasio – Migliorini,Roberto, Amichevole, 1999.

6.Nf3 0–0 7.Nc3 Nbd7 8.h3 Nb6 9.d3 Nfd7 10.e4 f5 11.Nd5 fe4 12.de4 c6 13.Ne7 Qe7 14.Rc1 d5 15.ed5 cd5 16.cd5 Bd5 17.Be2 e4 18.Nd4 e3 19.0–0 ef2 20.Rf2 Qe3 21.Nf3 Rac8 22.Rc8 Rc8 23.Qd4 Qd4 24.Nd4 Na4 25.Ba1 ˝–˝. Amor – Aoiz, St.Cugat 1994.

6.Nf3 0–0 7.d4 e4 8.Nfd2 a5 9.ba5 c6=.

6.Nf3 0–0 7.Be2 a5 8.b5 Nbd7 9.0–0=.

6.Nf3 Bd7 7.Nc3 Bg4 8.Be2 a5 9.0–0 0–0=.

6.Nf3 Nbd7 7.Be2 a5 8.0–0 ab4 9.ab4 Ra1=.

6.Nf3 Bf5 7.Be2 a5 8.0–0 ab4 9.ab4 Ra1=.

5.e4 a5

6.Nc3 ab4 7.ab4 Na6 8.Ra4 Rb8 9.Qc2 Nd7=.

6.Nc3 Nc6 7.b5 Nd4 8.Nf3 Be7 9.Nd4=.

6.Nc3 Be7 7.b5 Nbd7 8.Nf3 Bg4 9.h3 Bh5=.

5.e4 Ne4

6.Qf3 d5 7.Be5 Nc6 8.Bb2 a5 9.b5 Ne7+=.

6.Qf3 d5 7.Be5 Nc6 8.Bb2 Qe7 9.Be2+=.

4.a3 Be7

5.Qc2 A) 5...Be6 6.e4 (6.Nf3 a5 7.b5 Nbd7 8.e4 0–0 9.Be2=) 6...a5 7.b5 0–0 8.Nf3 Nbd7 9.d4=; B) 5...0–0 6.Nc3 (6.e4 a5 7.b5 Be6 8.Nf3 Bg4 9.Be2=; 6.e3 Be6 7.Nf3 a5 8.Ng5 ab4 9.Ne6+=; 6.Nf3 Bg4 7.d4 Bf3 8.ef3 ed4 9.Bd4+=) 6...Be6 7.e4 Nc6 8.Nf3 Bg4 9.b5=; C) 5...Bg4 6.e4 Nc6 7.b5 Na5 8.Be2 Be6 9.Nf3=; D) 5...a5 6.b5 (6.Qa4 Nbd7 7.d4 0–0 8.Nd2 Re8 9.e3+=; 6.Nf3 ab4 7.ab4 Ra1 8.Ba1 0–0 9.e4+=; 6.e4 ab4 7.ab4 Ra1 8.Ba1 0–0 9.Nf3+=) 6...0–0 7.Nf3 c6 8.e4 Bg4 9.d4+=.

5.Nc3 a5 6.b5 0–0 7.Nf3 Bf5 8.e3 e4 9.Nd4=.

5.Nc3 c6 6.e4 Nbd7 (6...0–0 7.Nf3=) 7.Nf3 0–0 8.Be2 Re8 (8...c5 9.0–0=) 9.0–0 Bf8 (9...a5 10.d4=) 10.Qb3 (10.d4 ed4 11.Qd4 Qe7+=) 10...g6 (10...a5 11.Rfb1=) 11.Rad1 a5 12.Bd3 (12.Qc2 ab4 13.ab4 d5 14.cd5 cd5+=) 12...Nh5 13.Bb1 (13.Ne2 Bg7=) 13...ab4+= 14.ab4 Nb6 15.d4 White plans c5 15...Qf6 (15...Bg4!?=) 16.c5+= ed4 (16...Nd7 17.de5 Ne5 18.Ne5 de5+=) 17.cb6 (17.Nb5! dc5 18.bc5+=) 17...dc3= 18.Qc3 (18.Bc3 Qe6 19.Qc2 Nf4+=) 18...Qc3+= 19.Bc3 Ra6 (19...Bg4 20.Rfe1+=) 20.Bd3 (20.b5 Rb6 21.Bd3 d5+=) 20...Rb6 (20...Ra3 21.Bd4–/+) 21.b5+= cb5 (21...d5 22.Ba5 Rb5 23.Bb5 de4 24.Be2 ef3 25.Bf3+=) 22.Bd4 Rc6 23.Bb5 Re4 24.Bc6 bc6 25.Rfe1 (25.Be3 Bg4+=) 25...Re1–/+ 26.Re1 c5 27.Bc3 Bd7 28.Rb1 Nf4 (28...Bg4 29.Ne1–/+) 29.Kf1 (29.Bd2 Nd5+=) 29...Nd5 30.Bd2 f6 31.h4 (31.h3 Kf7–/+) 31...h5 32.Ng1 (32.Rb7 Bf5–/+) 32...Kf7 33.Rb8 Be7 34.Ne2 Bf5 35.Nf4 (35.f3 Ke6–/+) 35...Nf4–+ 36.Bf4 g5 37.Bg3 Ke6 (37...gh4 38.Bh4 d5 39.Ke1–+) 38.Re8 (38.Ke2 c4–/+) 38...Kd7 (38...c4 39.Ke1–+) 39.Rh8–/+ Bg6 40.Ra8 (40.Rh6 Bf7–/+) 40...Ke6 (40...c4 41.Ke1–+) 41.Ke2–/+ Be4 (41...c4 42.Ke3–/+) 42.Rh8 gh4 43.Bh4 Bg2 44.f3 Bh3 45.Rh5 Bf5 46.Rh8 d5 47.Ra8 Bc2 (47...d4 48.Ra6 Kf7 49.Ra7–/+) 48.Kd2 (48.Ra6 Kf7–/+) 48...Bb3 49.Ra6 Kf5 50.Rb6 Bc4 51.Bg3 (51.Rc6 Bb5 52.Rb6 Bf1–/+) 51...Bf8 (51...d4 52.Rb7 Bd8 53.Ra7–+) 52.Bd6 (52.Bh4 Bh6 53.Ke1 Bg5 54.Bg5 fg5=) 52...Bh6 53.Ke1 Be3 54.Rc6 Bb5 55.Rc5 ˝–˝. Quabach,Juergen – Denk,Adolf, Passau, 1999.

5.Nc3 Bg4 6.Nf3 (6.h3 Be6 7.e4 c5 8.Nf3 Nc6 9.Be2+=) 6...a5 7.b5 Nbd7 8.d4 Bf3 9.ef3=.

5.c5 0–0 6.Nf3 dc5 7.Ne5 cb4 8.ab4 Bb4 9.Nd3 Bd6 10.g3 Nc6 11.Bg2 Bd7 12.0–0 Rb8 13.Bc6 Bc6 14.Ra7 Qd7 15.Ne5?? Be5–+ 16.Be5 Qh3 17.f3 Ng4! 18.Rf2 Ne5 19.Qb3 Rfd8 20.Nc3 Rd2 21.Ne4 Be4 22.fe4 Nc4 23.Qc4 Rd1 24.Rf1 Rf1 (24...Qf1) 0–1. michaln (1830) – gonso (2300), net–chess.com, 2003.

5.d3 a5 6.b5+=.

5.e3 (--> 1.b4 e5 2.Bb2 Nf6 3.a3 d6 4.e3 Be7 5.c4).

5.Nf3 a5 6.b5 (6.d4 e4 7.Nfd2 ab4 8.ab4 Ra1 9.Ba1+=; 6.Qa4 Nbd7 7.d4 e4 8.Nfd2 0–0 9.ba5+=; 6.Nc3 ab4 7.ab4 Ra1 8.Ba1 0–0 9.e3+=) 6...c5 7.Nc3 0–0 8.e4 Nbd7 9.Be2=.

5.Nf3 b6 6.e3 Bb7 7.Be2 0–0 8.0–0 Nbd7 9.d3 Ne8 10.Nbd2 Rb8 11.Qc2 c5 12.Rfe1 Nc7 13.d4 cd4 14.ed4 f5 15.de5 Ne8? (better is 15...de5!? 16.Ne5 Ne5 17.Be5 Bf6+/–) 16.Bd3 Ne5 17.Ne5 de5 18.Be5 Bd6 19.Bf5 Kh8 20.Rad1 (20.Bd6 Nd6 21.Bd3+– (21.Bh7?! Qh4 22.f3 Qh7 23.Qh7 Kh7+=)) 20...Be5+/– 21.Re5 h6 (21...h6 22.Nf3 Qf6+–) 0–1. Fournier,Frederic (1990) – Vallet,Michel (1990), Coupe club, 2004.

5.Nf3 Nbd7 6.e3 0–0 7.Be2 b6 8.d3 Bb7 9.Nbd2 Re8 10.0–0 a5 11.Qc2 ab4 12.ab4 Ra1 13.Ra1 Bf8 14.Ra7 Qb8 15.Qa4 d5 16.cd5 Nd5?? (better is 16...b5 17.Qa1 Bb4=) 17.Qd7+– Qa7 (17...Nf6 18.Qa4+–) 18.Qe8 Qa2 19.Be5 (19.Ne5?! Nf6 20.Qf7 Qf7 21.Nf7 Kf7+–) 19...Qc2 (19...Ne3 20.Bg7 Kg7 21.Qe3+– (21.fe3?! Bf3 22.Qe5 Kg8+–)) 20.Qd8 (20.Ng5 Qc1 21.Nf1 Qf1 22.Bf1 Nf6 23.Qf7 Kh8 24.Qf8 Ng8 25.Qg7) 20...Qc1 (20...f6 21.Bg3+–) 21.Bf1 Nc3 (21...f6 22.Bg3 Nb4 23.Bc7+–) 22.Bc3 (better is 22.Bc7!? Nd5 23.Bb6 Qc8+–) 22...Qc3 23.b5 Bf3 (23...Qc5 24.e4 Qe7 25.Qb8+–) 24.Nf3 c5 (24...Qc5 25.d4 Qe7 26.Qc8+–) 25.Qb6 Qb4 26.Qc6 g6 27.b6 Kg7 28.b7 c4 29.dc4 Bd6 30.Nd4 Bb8 31.c5 Qe1 (31...Qa5+–) 32.Qc8 Ba7 33.b8Q (better is 33.Nc6 Qb1 34.Na7 Kf6+–) 33...Bb8 34.Qb8 Qc3 35.c6 Qc5 36.c7 1–0. Fournier,Frederic (1970) – agon (1920), Active, 2004.

5.Nf3 e4 6.Nd4 c5 7.Nc2 0–0 8.d3 d5 9.cd5+=.

5.Nf3 Be6 6.e3 0–0 7.Be2 a6 8.0–0 Nc6 9.d3 e4 10.de4 Ne4 11.Nbd2 d5 12.cd5 Bd5 13.Qc2 Nd2 14.Qd2 Bd6 (better is 14...Qd6!?=) 15.Rfd1 Bb3?? (15...Bf3 16.Bf3 (16.gf3?! Qg5 17.Kh1 Qh4=) 16...Qh4 17.h3+/–) 16.Rdc1 (better is 16.Qc3 Qf6 17.Qb3+–) 16...Be6+= 17.Rd1 Bg4 (better is 17...Bb3=) 18.Qc3+– f6?? (better is 18...Qf6 19.Qf6 gf6 20.Bf6 Rfe8+–) 19.h3 (better is 19.Qc4 Kh8 20.Qg4+–) 19...Bf3 (19...Bd7!?+=) 20.Bf3+/– (20.gf3?! Qc8=) 20...Ne5? (better is 20...Qe8+/–) 21.Bb7+– Rb8 22.Ba6 h6 23.Rd2 Qe7 24.Rad1 Kh8 25.Be2 Qe6 26.Qc2 Rfd8 27.Bd3 (27.Qe4!? Qb3+–) 27...Nd3 28.Rd3 (worse is 28.Qd3 Bh2 29.Kh2 Rd3 30.Rd3 Kh7+–) 28...Qe4 29.Qb3 Qe7 30.Qc4 Rbc8 31.Bd4 Kh7 32.Qc2 Kh8 33.Bc5 Bc5 34.Qc5 Qc5 35.Rd8 Qf8 36.Rf8 Rf8 37.a4 Rb8 38.b5 Kh7 39.Rd7 Rc8 40.a5 Kg6 (40...Ra8 41.a6 c6+–) 41.a6 Kf5 42.Rg7 h5 (42...Ke5 43.Rh7+–) 43.Rd7 (better is 43.a7 Ke5 44.Rc7 Rc7+–) 43...Ke6 44.Rd4 (better is 44.Rc7! Rc7 45.b6 Rc1 46.Kh2 Kf7+–) 44...f5 45.f3 Ke5 46.Kf2 Rb8 47.Rb4 Rb6 (47...h4+–) 48.a7 1–0. Fournier,Frederic (1925) – kasparocito (1750), Active, 2004.

5.Nf3 Bf5 6.e3 0–0 7.Be2 a5 8.0–0 ab4 9.ab4+=.

5.Nf3 Bg4 6.Nc3 a6 7.Qc2 Nbd7 8.d3 b6 9.Nd2 c5 10.g3 Rc8 11.Bg2 Rc7 12.0–0+= h6 13.e3 0–0 14.d4 ed4 15.ed4 cd4 16.Nd1 Ne5 17.Bd4+= b5 18.Bb6+/– bc4 19.Ne3 Be2 20.Rfe1+– Bd3 21.Qc3 Re8 22.Rac1 Qc8? 23.Bc7 Qc7 24.f4 Neg4 25.Qd3!! Qb6 26.Ndc4 Qa7 27.h3 Ne3 28.Qe3 Qe3 29.Ne3 1–0. elcid10 – alexson, ChessWorld.net, 2009.

5.g3 0–0 6.Bg2 c6 7.d3 Be6 8.Nf3 Nbd7 9.Nbd2 h6 (9...Qb6 10.0–0=) 10.0–0= a5 11.Bc3 ab4 12.ab4 Qc7 13.e4 d5 14.Qb3 (14.cd5!? cd5 15.Rc1+=) 14...d4–/+ 15.Bb2 Rfb8 16.h3 Ra6 (16...Ra1 17.Ra1 b5 18.Ba3–+) 17.Ne5–/+ Ne5 18.f4 Ra1 19.Ba1 Rd8 (19...b5 20.fe5 Qe5 21.Rf3–/+) 20.fe5 Qe5 21.Rf3 Ra8 22.Bb2 b5 23.Ba3 Qg5 (23...Qg5 24.Bc1 bc4 25.dc4 Ne4–+) 0–1. mgilbert – pierred, net–chess.com, 2016.

5.g3 c6 6.Bg2 a5 7.d3 ab4 8.ab4 Ra1 9.Ba1 Qb6 10.Bc3 Na6 11.Qa4 Ng4 12.Nh3= 0–0 13.Nd2 d5 14.c5 (14.cd5 cd5 15.Bd5 Bb4 16.Bb4 Nb4=+) ˝–˝. Hanison,Bernard – Skaug,Thorbjorn, corr ICCF TT–4–90 semi, 1993.

5.h4 0–0 6.h5 Nbd7 7.h6=+ g6 8.e3 Ne4 9.d4 ed4 10.Bd4 Bf6 11.Bf6 Qf6 12.Nd2?? Nd2 13.Kd2–+ Ne5 14.Nf3 Nf3 15.gf3 Be6 16.Bd3–/+ Rad8 17.Qa4 a6 18.f4 Qb2 19.Bc2? Bc4–+ 20.Rab1 Qf6 21.Rbg1 d5 22.f5 d4 23.e4 d3 24.Bb3?? Bb3 25.Qb3 Kh8 26.fg6? fg6 27.Qc3 Qc3 28.Kc3 d2 29.Rd1 Rf2 30.Kc2 Re2 31.Rh4 g5 32.Rg4 Rd4 33.Rg5=+ Ree4 34.Rd2 Rd2 35.Kd2 Re6 36.Rg7= Rh6 37.Rc7 Rb6 38.Ke3 Re6 39.Kf4 Rf6 40.Ke5= Rf3 41.Rb7 Ra3 42.Kf6 Rf3=+ 43.Ke6 h5 44.Ra7 h4 45.Ra6= h3 46.Ra1 h2 47.b5 Rb3 48.Rh1= Rb5 49.Rh2 Kg7 50.Rg2 Kh6 51.Kf6 Rb6 52.Kf5 Rb5 53.Kf4 Rb4 54.Kf3 (54.Kf3 Rb1 55.Rg8=; 54.Ke5 Rb1=). Tambor20 – ummagumma, Live Game Caissa's Web, 2006.

5.Nc3 0–0

6.e3 (--> 1.b4 e5 2.Bb2 Nf6 3.a3 d6 4.e3 Be7 5.c4 0–0 6.Nc3).

6.e4 a5 7.b5 Nbd7 8.Be2 Nc5 9.Qc2 b6 (9...Be6 10.Nf3=) 10.d3 Bb7 11.Rd1 Qd7 12.Nf3 Ne6 13.0–0 Nf4 14.Bc1 N6h5 15.Kh1 f5 16.Ng1 Ne2 17.Nge2 f4 (17...Rae8 18.f3=) 18.f3 Nf6 19.d4 Qe8 20.Bb2 Rd8 21.Nd5 Nd5 22.cd5 Bf6 23.a4 Rf7 24.Nc1 h5 25.Nd3 Re7 26.de5 de5 27.Rc1 Qf7 28.Qf2 h4 29.h3 Rdd7 30.Ba1 Re8 31.Nb2 Qg6 32.Nc4 Qg3 33.Qe2 Qg6 (33...Qg5 34.d6 Bd8 35.Rfd1+/–) 34.d6+/– Qf7 35.dc7 Qe6 36.Qf2 Rc7 37.Nb6 (worse is 37.Qb6 Qc8 38.Rg1 Bd8+/–) 37...Bd8 38.Rcd1 Bf6 39.Rd3 Rd8 40.Rd8 Bd8 41.Rd1 Be7 42.Nd5 Bd5 43.ed5 Qg6 44.Be5 Rc2 45.Qf1 Qg5 46.Bb8 Bc5 47.d6 (47.Bc7 Rf2 48.Qf2 Bf2+–) 47...Rf2 48.Qc4?? (better is 48.Qg1 Rd2 49.Rd2 Bg1 50.Kg1+/–) 48...Kh8= 49.Rg1 Rb2 50.Qf1 ˝–˝. Benassi,Aspasio (2140) – Husemann,Andreas (1995), RA–2012–0–00197, 2012.

6.e4 c5 7.Nf3 Nc6 8.bc5 dc5 9.Be2+=.

6.e4 Nc6 7.Nf3 a5 8.b5 Nd4 9.Nd4 ed4 10.Nd5 =+.

6.e4 Nc6 7.Nf3 Bg4 8.Be2 a6 9.0–0 Bf3 10.Bf3 Nd4 11.Nd5 Nf3 12.Qf3 c6 (12...Nd5 13.cd5 f5 14.ef5+=) 13.Ne7 (13.Ne3!?+/–) 13...Qe7= 14.d3 Nd7 (14...Qe6 15.c5=) 15.Rad1 a5 16.Ra1 Qe6 17.Qg3 Nb6 (17...f5 18.Qh3=) 18.f4 Na4 19.f5 Qf6 20.Bc1 h6 21.Bd2 ab4 22.ab4 b5 23.cb5 cb5 24.Rfc1 Rfc8 25.Qg4 Rc1 26.Rc1 Nb6 27.Be1 Qe7 28.Bh4 f6 29.Bf2 Qb7 30.Be3 Kh8 31.Qh5 Rf8 (31...d5 32.Bh6 Kg8 33.Qg4+/–) 32.h3 (32.Qg6 d5 33.Rc5 Qd7+=) 32...d5+= 33.Rc5 Qd7 34.Kh2 d4 35.Bc1 Na4 36.Rd5 Qc7 37.Bd2 Nb2 38.Rc5 Qf7 39.Qe2 Qb3 (39...Rb8 40.Rc6+=) 40.Bh6 gh6 41.Rc7 Qd1 42.Qb2 Qd3 43.Qc1 Qe3 44.Qc6 (44.Qe3!? de3 45.Kg3+=) 44...Qf4 45.Kg1 h5 46.Qb7 Qh6 ˝–˝. Cottarelli,Franco – Klemens,Leszek, corr ICCF TT/6/02/2, 2005.

6.e4 Nc6 7.Nf3 h6 8.d4 Bg4 9.d5 Nd4 10.Be2 Ne2 11.Qe2 Nh7 12.h3 Bd7 13.g4 a5 14.b5 ˝–˝. Dudek,Jaromir (1905) – Hlavnicka,Karel (1985), Czechia KP–chTB, 2007.

6.Nf3 a5 7.b5 Bf5 8.e3 c6 9.Be2=.

6.Nf3 Nc6 =+.

6.Nf3 Re8 7.Qc2 (7.d4 e4 8.Nd2 e3 9.fe3 Nc6+=) 7...Bg4 (7...a5 8.d4+=) 8.h3 (8.Qd3 Nc6+=) 8...Bf3 9.gf3 c6 (9...Nc6 10.Rg1+=) 10.Rg1= Nbd7 (10...d5 11.e3=) 11.e3 (11.f4 ef4 12.Qf5 Ne5 13.Qf4 Nh5+=) 11...a5 12.b5 Nc5 (12...d5 13.Qf5=) 13.Rd1 (13.Ne4 Nce4 14.fe4 cb5 15.cb5 Rc8=) 13...Ne6 14.Rb1 Kh8 (14...Qd7 15.Bd3=) 15.Be2 (15.Qf5 g6 16.Qc2 Rb8=) 15...d5 (15...Rc8 16.Qf5=) 16.bc6 bc6 17.cd5 cd5 18.Bb5 (18.Nb5 Rc8 19.Qf5 e4=) 18...Rg8 19.Qf5 Bd6 20.f4 ef4 21.Nd5 Nd5 22.Bd3 The mate threat is Qxh7 (worse is 22.Qd5 fe3 23.Bc6 ef2 24.Kf2 Rb8–+) 22...Qh4 (22...Nf8 23.Qd5 fe3 24.Qf7 ef2 25.Qf2–/+) 23.Qd5+= Rad8 24.Qf5 a4 (24...Nc5 25.Bb5 Qe7 26.Bd4+=) 25.Rg4 (25.Qf7 Ba3 26.Bf5 fe3–+) 25...Qh6 26.h4 Rc8 27.Qf7 Rcf8 (27...Rc7 28.Qf5+=) 28.Qb7 Nc5 29.Qd5 Nd3 30.Qd3 Qe6 31.Rg5 fe3 32.de3 Qf7 (32...Rf3 33.Qd5 Qd5 34.Rd5+/–) 33.Qe2 Be7 34.Rg4 Qd5 (34...Qf5 35.Rd1+=) 35.Ra4+/– Qh1 36.Qf1 Qc6 (36...Qf3 37.Rc4+/–) 37.Rc4 Qa8 38.Ra1 Rf7 (38...Rf3 39.Qg1+/–) 39.a4 (39.Qd3 Qh1 40.Qf1 Qa8+/–) 39...Qd5 (39...Rc8 40.Rc8 Qc8 41.f4+=) 40.Rd1 (40.a5 Rgf8 41.e4 Qe6+=) 40...Qb7 (40...Qf3 41.Qe2 Qh1 42.Kd2 Qd5 43.Bd4 Rf2 44.Qf2 Qc4 45.e4+=) 41.Rd2 Rgf8 (41...Rd8 42.Rd8 Bd8 43.Bc1+/–) 42.Rdc2 (42.Qh3 Rf3 43.Qd7 Re3 44.Kd1 Qf3 45.Kc2 Re4 46.Re4 Qe4 47.Kd1 Qh1 48.Ke2 Qh4+=) 42...Bb4 (42...Qb3 43.Rd2+/–) ˝–˝. Baer,Werner – Woelfelschneider,Peter, TT–09 ETC, 2003.

6.g3 c6 7.Bg2 Be6 8.d3 Ne8 (8...d5 9.Nf3 d4 10.Nb1=+) 9.Nf3= f5 10.a4 (10.0–0 Nd7=) 10...Nd7=+ 11.0–0 d5 12.cd5 cd5 13.Qb3 Nc7 14.d4 e4 15.Ne1 f4 16.a5 (16.gf4 Rf4 17.Bc1 Rh4=+) 16...Bd6 17.b5 b6 (17...fg3!? 18.hg3 Qf6=+) 18.Ba3= Qe7 ( 18...Ba3 19.Qa3 a6=) 19.Na4?? ( 19.Bd6 Qd6 20.Qa3 Qa3 21.Ra3=) 19...Ba3–+ 20.Ra3 (20.Qa3 Qa3 21.Ra3 Nb5–+) 20...Nb5! 21.Qb5 Qa3 22.Nc2 (22.ab6 fg3 23.hg3 ab6 24.Nb6 Rab8–+) 22...Qd6 23.gf4 Rf4 24.Qb3 Raf8 25.Qg3 Qc7 26.Ne3 (26.Nc3 ba5 27.Rc1 Nb6–+) 26...Qc6 27.Nb2 ba5 (27...Qb5 28.Bh3 Bh3 29.Qh3–+) 28.Qg5 R4f6 29.Nbd1 a4 30.Kh1 a3 31.Be4 (31.f3 a2 32.Nb2 Rb8–+) 31...de4 32.d5 Qc5 33.Nc3 Rg6 34.Qh4 Qe3 (34...Qc3 35.de6 Re6 36.Rd1–+) 35.de6 (35.fe3?? Rf1) 35...Qc3 (35...Rh6 36.ed7 Rh4 37.fe3 Rf1 38.Kg2–+) 36.ed7 Qd2 37.Qe4 Qd7 (37...Qd7 38.Qh4 Qg4 39.Qg4 Rg4–+) 0–1. Lebel Arias,Julia (2020) – Erenska,Hanna (2255), FRA–POL (Women), 1990.

6.g3 Be6 7.d3 Qd7 8.Bg2 c6 9.e4 a5 10.Nge2 ab4–/+ 11.ab4 Ra1 12.Qa1 Na6 13.Na2 Ra8 14.Nac1 Qc8 15.Qa3 Nc5 16.Qc3–/+ Na4 17.Qb3 b5–+ 18.0–0 bc4 19.dc4 Nb2 20.Qb2 Bc4 21.Rd1 Qa6 22.Nc3 d5! 23.ed5 cd5 24.Nd5 Bd5 25.Qe5?? Bg2–+ 26.Kg2 Qc6 27.Kg1 Bb4 28.Nd3 Bd6 29.Qd4 Qf3 30.Nf4?? Ng4 31.Nh3 Bc5! 32.Qd2 Ne3! 33.Nf4 Nd1 (33...Nd1 34.g4 Bf2 35.Kf1 Ne3 36.Qe3 Be3 37.Ke1 Ra1#) 0–1. alaamattar (2115) – salaschess (2125), net–chess.com, 2009.

5.Nc3 Be6

6.e3 0–0 7.Nf3 a5 8.b5 (8.d4 Nc6+=) 8...Nbd7 (8...e4 9.Nd4 Nbd7 10.Ne6 fe6 11.d3=) 9.Ng5 (9.d4 e4 10.d5 Bg4+=) 9...Bg4 10.f3 Bf5 11.Be2 h6 12.Nge4 (12.e4 Bg6 13.Nh3 Nc5=) 12...Ne4 13.fe4 Bh4 14.g3 Bh3 15.Bf1 Bf1 (15...Be6 16.d4 ed4 17.ed4=) 16.Rf1= Bg5 17.Qe2 c6 (17...Nf6 18.h4+–) 18.h4 Bf6 19.d3 Nc5 20.Rd1 Qd7 (20...Be7 21.d4 ed4 22.ed4=) 21.Qf3 cb5 (21...Rac8 22.d4 Ne6 23.bc6 bc6 24.Ne2=) 22.Nb5 ˝–˝. Boehnke,Hartmut – Vetter,Udo, DESC, 2001.

6.e3 a5 7.Nf3 0–0 8.Be2 ab4 9.ab4 Ra1 10.Qa1 e4 11.Nd4 Nc6 12.Nc6 bc6 13.0–0 d5=+ 14.cd5 cd5 15.b5 d4 16.Na4 d3 17.Bd1 Qd7 18.Nc3 c6 19.Ba4 cb5–/+ 20.Bb5 Qb7 21.Qa6 Qa6 22.Ba6 Rb8 23.Rb1 Nd5 24.Ne4 Ba3 25.Bd3 Rb2 26.Ng5 Nf6 27.Ne6 fe6 28.Rb2 Bb2 29.Bc2 Kf8 30.d4 g5 31.f3 Ne4?? 32.Be4+– e5 1–0. ISickboyI – Alissa, ChessWorld.net, 2005.

5.Nc3 Bf5

6.e3 0–0 7.Nge2 c5 8.b5 Nbd7 9.Ng3 Bg6 10.Qf3 Qc7 11.h4 h6 12.h5 Bh7 13.a4 a6 14.Rh4 Rfd8 15.Nf5 Bf8 16.g4 ab5 17.cb5 c4 (17...Re8 18.Bg2 e4 19.Qf4–/+) 18.Bg2 (better is 18.g5!? hg5 19.Rc4=) 18...Nc5 19.Nh6? (better is 19.Bf1+=) 19...Kh8?? Black prepares e4 (better is 19...gh6 20.Bf1 Nfe4 21.Bc4 Nc3 22.Bc3 Na4–+) 20.g5 (20.Bf1!? gh6 21.Qf6 Bg7 22.Qf3=) 20...e4 21.Qg3 (better is 21.Ne4 Be4 22.Re4 Nfe4 23.Qf7 (23.Nf7 Kg8 24.h6 Nd3 25.Ke2 gh6 26.Nd8 Qd8 27.Qe4 Nb2+–) 23...Qf7 24.Nf7 Kg8 25.Nd8 Rd8 26.Be4 Ne4 27.a5+=) 21...Ng8?? (21...Nd3 22.Ke2 Nb2–/+ (22...gh6? 23.Nd5 Qc5 24.Bf6 Bg7 25.gh6 Bf6 26.Nf6+–)) 22.Nf7! (22.Be4 Be4 23.Re4 Nd3 24.Ke2 Nh6 (worse is 24...Nb2 25.Nd5 Qd7 26.Nb6+/–) 25.gh6 Nb2+–) 22...Qf7 23.g6 Nd3 24.Ke2 Qf5?? (better is 24...Qe8 25.Ba3 Ne7+=) 25.Be4+– (25.gh7?! Nf6 26.Nd1 Nb2 27.Nb2 d5+/–) 25...Qe5 (25...Qd7 26.gh7 Nh6 27.Ba3+– (27.Bd3?! cd3 28.Kd3 Nf5+–)) 26.gh7 Nb2 (26...Nh6 27.Bb7 Ra7+–) 27.hg8Q Kg8 28.Qg6 (better is 28.Bb7 Ra7 29.Bd5 Kh8+–) 28...Qf6 (28...d5 29.Qh7 Kf7 30.Rf4 Ke7+–) 29.Qh7 Kf7 30.Rf4 (30.Rf4 Qf4 31.Qg6 Kg8 32.ef4+–) 1–0. Joie,Sebastien – Fournier,Frederic, Match Active, 1999.

6.e3 0–0 7.Qf3 Bd7 8.Nge2 Nc6 9.Nd5=.

5.d3 0–0

6.Nd2 Be6 7.Ngf3 h6 8.e3 Nbd7 9.Be2 a5 10.0–0 b6 11.b5 Rc8 12.d4 e4 13.Ne1 d5 14.Qc2 c5 15.bc6 Rc6 16.Qb3 dc4 17.Bc4 Bc4 18.Nc4 Qc7 19.Rc1 (19.Nd2!?+=) 19...Rc8 20.Ne5 Ne5 (20...Rc1?! 21.Qf7 Kh7 22.Qg6 Kh8 23.Nf7 Kg8 24.Nh6 Kh8 25.Nf7 Kg8 26.Nh6 Kh8 27.Nf7 Kg8 28.Nh6=) 21.de5 Rc1 22.Bc1 Qc1 23.ef6 Bf6 24.g3 Rc3 25.Qb6 Qa3 26.Qb7 Qb4 27.Qa8 Kh7 28.Ng2 Ra3 29.Nf4 Ra1 (29...Qc4 30.Nd5–/+) 30.Ra1 Ba1 31.Qd5 Kg8 32.Qd8 Kh7 33.Qd5 ˝–˝. Schalkwijk,Peter – Shim Ng Min,Francis, 47. LSS No Engine Cup Preliminary, 2011.

6.e3 Nbd7 7.Nf3+=.

6.e3 Bg4 7.Be2= Be2 8.Ne2 a5 9.b5 (9.0–0 d5=) 9...Nbd7 10.Nbc3 Nb6 (10...c6 11.e4=) 11.e4 h6 (11...c6 12.f4=) 12.a4 (12.0–0 Re8+=) 12...Rc8 (12...c6 13.f4=) 13.Nd5 (13.0–0 c6=) 13...Nbd5 14.cd5 c6 15.Nc3 (15.dc6!? bc6 16.Qd2=) 15...cd5+= 16.Nd5 Nd5 17.ed5 Rc5 (17...Bg5 18.0–0+=) 18.0–0 Rd5 (18...Bf6!?+=) 19.Qf3+= Rc5 20.Qb7 Qc7 (20...Rc2 21.Rab1+=) 21.Qe4 (21.Qc7!? Rc7 22.Rac1+/–) 21...Bg5 (21...Rc8 22.Rab1=) 22.g3 (22.Rab1 Rc8=) 22...f5 (better is 22...Rc2 23.Rab1 Rc8=) 23.Qe2?? (better is 23.Qf3=) 23...Rc2–+ 24.Qf3 Rb2 25.Qd5 (25.Rab1 Rb1 26.Rb1 f4–+) 25...Rf7 (25...Kh8 26.Rab1 Rb1 27.Rb1–+) 26.h4 (26.Rab1 Rb1 27.Rb1 Qb6–+) 26...Bd2 27.Kg2 (27.Rab1 Rb1 28.Rb1 Bb4–+) 27...Be3 28.Qa8 (28.Ra2 Ra2 29.Qa2 Qb7 30.f3 f4–+) 28...Kh7 29.Qf3 (29.Qd5 f4 30.Qe4 Kg8 31.gf4 Bf4–+) 29...f4 (29...Bd4 30.Rac1 Rc2 31.Rc2 Qc2 32.h5–+) 30.g4 (30.h5 Rc2 31.Rab1 Bb6–+) 30...Qc2 (better is 30...Qc3 31.Qe4 Kg8 32.Qa8 Rf8 33.Qd5 Kh7 34.Qd6–+) 31.h5 (31.g5 Qd3 32.Rad1 Qg6–+) 31...Qd3 32.Rad1 Qc2 33.Rd6 e4 34.Rh6 (34.Qd1 f3 35.Kh3–+) 34...gh6 35.Qh3 Bf2 36.Kh1 (36.g5 Rb1 37.Qb3 Qb3 38.g6 Kg7 39.Rb1 Qf3 40.Kf1 Bd4 41.Ke1 Bc3) 36...f3 (36...Bg3 37.Qg3 fg3 38.Rf7 Kg8 39.Rg7 Kg7 40.g5 Qd1) 37.g5 (37.Qh2 Rb1 38.Qf2 Qf2 39.Rb1 Qg2) 37...hg5 (37...Bg3! 38.g6 Kg7 39.gf7 Qg2 40.Qg2 fg2 41.Kg1 Bh2 42.Kh2 gf1Q 43.Kg3 Qf3 44.Kh4 Rh2) 38.Qe6–+ Rg7 39.Qf5 Kg8 (39...Kh6 40.Rg1 Bc5 41.Qg5 Rg5 42.Rg5 Qh2) 40.Qe6 Rf7 41.Qg6 (41.Qe8 Kg7 42.Qe5 Kf8 43.Qb8 Ke7 44.Qe5 Kd7 45.Qd5 Ke8 46.Qe6 Re7 47.Qg8 Kd7–+) 41...Kf8 42.h6 Bg3 43.Qh5 (43.Qf7 Kf7 44.Rf3 ef3 45.h7 Qd1) 43...Qg2 0–1. Tortoza,Carlos – Bonow,Valdir (1925), CiF, 2007.

6.Nf3 a5 7.Nbd2 ab4 8.ab4 Ra1 9.Ba1 Re8 10.e3 d5 11.Be5 Bb4 12.Bf6 Qf6 13.cd5 Qd6 14.d4 Qd5 15.Bd3 Bg4 16.0–0 Bd2 17.Qd2 Bf3 18.gf3 Qf3 19.Qc2 Na6 20.Bh7 Kf8 21.Qf5 Qc6 22.Qh3 g6 23.Qh6 (23.f4 Qf6 24.f5 Qg5 25.Kf2 Nb4 26.fg6 fg6–+) 23...Ke7 24.f4 Qf6 25.f5 g5 26.Qh5 Rh8 27.Rf3 c5 28.e4 (better is 28.Kg2!?–/+) 28...cd4–+ 29.e5 Qe5 30.f6 Ke8 31.Rf2 Qe3 32.Kg2 d3 33.Qg4 Kd8 34.Qf5 Nc5 35.Qd5 Kc7 36.Qf7 Kb6 (36...Kd6 37.Qg7 d2 38.Qe7 Qe7 A) 39.fe7?? d1Q–+ (39...Rh7?! 40.e8Q d1Q 41.Rf6 Kc7 42.Qe5 Kd7 43.Qf5 Ke7 44.Qe5 Kd7 45.Qf5 Ke7 46.Qe5 Kd7=); B) 39.Rd2 Ke6 40.fe7 Ke7 41.Bf5–/+) 37.Qg6 d2 38.f7 Ne6 39.Qb1 Kc7 40.Qc2 Kb8 41.Qd2 Qd2 42.Rd2 Rh7 43.f8Q Nf8 44.Rd8 Kc7 45.Rf8 b5 46.Rf5 Kc6 47.Rg5 b4 48.Rg3 Rb7 49.Rb3 Kb5 50.h4? (better is 50.Kf3–/+) 50...Kc4–+ 51.Rb1 b3 52.Kg3 Kd3 53.h5 Kc2 54.Rb3 ˝–˝. Pott,Brian (1870) – Korchut,Adam (2090), IECG, 2006.

5.d4 ed4

6.Nd2 c5 7.Ngf3 0–0 8.h4 (8.e3 de3 9.fe3 Ng4–/+) 8...Bf5 9.Rg1 Re8 10.g4 Bg4 11.Nh2 Bh5 12.Ndf3 Bf8 13.Ng5 Ne4 (13...Nc6 14.Qc2–+) 14.Qc2 Ng5 15.Rg5 Bg6 16.Qd2 d3 (16...Be7 17.Rg1–+) 17.0–0–0 ( 17.e3 cb4 18.ab4–/+) 17...de2–+ 18.Be2 Be7 (18...cb4 19.ab4 Nc6 20.Bf3–+) 19.Rg4 Bh4 20.Rdg1?? (20.Bd3 cb4 21.Bg6 hg6 22.ab4–+) 20...Bf6 ( 20...Bf2 21.R1g3 Bg3 22.Rg3 cb4 23.ab4–+) 21.Bf6?! Qf6 22.Rf4 Qa1 0–1. burka – HTRJack, Live Game Caissa's Web, 2004.

6.Qd4 0–0 (6...Be6 7.Nf3+=) 7.Nc3 (7.Nf3 a5+=) 7...c5 (7...Nc6 8.Qf4+=) 8.Qd2= Be6 9.bc5 (9.e3 Nbd7 10.Nd5 Bd5 11.cd5 Nb6+=) 9...dc5+= 10.Qd8 Rd8 11.e4 Nc6 12.f3 (12.Nf3 b6+=) 12...Nd7 (12...Nd4 13.Bd3 Nf3 14.Nf3 Rd3 15.Nd5–/+) 13.Nd5 Bd6 14.f4 Nd4 15.Bd4 (15.Rd1 Re8 16.e5 b5+=) 15...cd4 16.e5 (16.Nf3 Bc5=) 16...Bf8 (16...Bc5 17.Nc7 Rac8 18.Ne6 fe6 19.Nf3=) 17.Nc7 (17.Nf3!? Bc5 18.Nc7=) 17...Rac8+= 18.Ne6 fe6 19.Bd3 Nb6 (19...g5 20.g3+=) 20.Nf3= Be7 (worse is 20...Rc4 21.Ng5 Re8 22.Ke2+/–) 21.Ke2 (21.Nd2 Na4=) 21...Na4 (21...Nc4 22.Rhc1 b5 23.a4=) 22.g3 (22.Kd2 b6=) 22...Rc6 (22...b6 23.h4=) 23.Kd2 Rd7 (23...b6 24.Rhb1=) 24.Rhb1 (24.f5 ef5 25.Bf5 Rd8=) 24...Bd8 (24...Kf7 A) worse is 25.Bh7 g6–/+ (25...Rc4?! 26.f5 Nc5 27.fe6 Ne6 28.Rf1=); B) 25.h4=) 25.Kc2 (25.f5 Ba5 26.Kc2 Bc3 27.fe6 Rdc7= (worse is 27...Re6 28.Bf5 Ree7 29.Bd7 Rd7 30.Ra2+/–)) 25...g6 (25...Be7 26.h3=) 26.Nd2 (26.h3 Be7=) 26...Nc3 27.Rb2 Bb6 (27...Kf7 28.Nb3 Na4 29.Rbb1=) 28.a4 Nd5 29.Ne4 Ne3 30.Kd2 (30.Kc1 Nc4 (30...Rc4? 31.Bc4 Rc7 32.a5 Rc4 33.Kd2+–) 31.Nf6 Kf7 32.Nd7 Ne5 33.Kd2 Nd7+/–) 30...Ba5 (30...Nc4? 31.Bc4 Ba5 32.Kd3+–) 31.Ke2 Kf8 (31...Bc3 32.Rbb1 Ba1 33.Nf6 Kf7 34.Nd7+/–) 32.Rab1 (32.c5 Bc3 33.Nc3 dc3+/–) 32...b6 (32...Rcc7 33.Rb5 b6 34.c5+=) 33.c5 Rd8 (33...Rc8 34.Rb5+=) 34.cb6+/– ab6 35.Ng5 Nd5 (better is 35...Ke7 36.Nh7 Nd5+/–) 36.Nh7 (better is 36.Bb5 Nc3 37.Kf1+/–) 36...Kg7= 37.Ng5 Nc3 38.Kf2 (38.Kf1 Nb1 (38...Na4? 39.Bb5 Nb2 40.Bc6+–) 39.Rb1 Rdc8+=) 38...Nb1 (38...Na4 39.Rc2 Rc2 40.Bc2=) 39.Rb1 (39.Be4 Rdc8 40.Bc6 Rc6 41.Rb1 Bd2+/–) 39...Rh8 (39...Re8 40.Rd1 Re7 41.Nf3+=) 40.h4 Re8 (40...Kf8 41.Bg6 Ke7 42.Bd3+/–) 41.Rd1 (41.Bb5 Rc2 42.Kf3 Re7+/–) 41...Re7 42.Nf3 Bb4 (42...Rd7 43.Be2 Bb4 44.Nd4= (worse is 44.Rd4 Bc5 45.Ke3 Rcc7+=)) 43.Kg2 (43.Nd4 Bc5 44.Bb5 Rc8+/–) 43...Rc3 (43...Bc3 44.Bb5 Rc5 45.Nd4 Bd4 46.Rd4+/–) 44.Nd4 Bc5 45.Bb5 (45.Nb5 Rb3 46.Nd6+/–) 45...Bd4 (45...Kf7 46.g4+/–) 46.Rd4+– Rec7 47.Rd6 Ra3 48.Bc6 (48.Re6 Rcc3 49.Re7 Kf8 50.Re8 Kf7=) 48...Ra4?? (better is 48...Kf7+/–) 1–0. Riepe,Bernhard – Ritter,Wolfgang, Meisterschaft, 2005.

6.Qd4 a5 7.b5 Nbd7 8.e4 Nc5 9.Nd2+=.

6.Bd4 0–0 7.e3 a6 8.Bd3 Nc6 9.Bb2 Bg4 10.Ne2 Qd7 11.Qc2 Ne5 12.Be5 de5 13.Nbc3 Rad8 14.Rd1= Qc8 15.0–0 Rd7 16.f3 Be6 17.Ne4 Ne4 18.Be4 h6 19.Rd7 Bd7 20.Rd1 Be6 21.Bd5 c6 22.Be6 Qe6 23.e4 Qc8 24.Rd3 Rd8 25.Rd8 Qd8= 26.g3 a5 27.Qb3 Qb6 28.Kf1 ab4 29.ab4 Qd8 30.b5 Qb6 31.Qd3 cb5 32.cb5 Bc5 33.Qd7 f6 34.Qc8 Kh7 35.Qf5 Kg8 36.Qc8 Bf8 37.Qc4 Kh7 38.Qc8 Qd6 39.Qc4 b6 40.Kg2 h5 41.f4 ef4 42.Nf4 Qd2 43.Qe2 Qe2 44.Ne2 g5 45.Nc3 Bc5 46.h3 Kg7 47.g4 h4 48.Kf3 Kf7 49.Ke2 Ke6 50.Kd3 Ke5 51.Nd5 Bg1 52.Ke2 Ke4 53.Nf6= Kf4 54.Nh5 Ke4 55.Nf6 Ke5 56.Nh5 Bc5 57.Kd3= Be7 58.Ng7 Kf4 59.Ke2 Ke4 60.Ne6 Kd5 61.Nc7 Kc4 62.Kf3 Bd6 63.Ne6 Be7 64.Nc7 Bd8 65.Ne6 Bf6 66.Nc7 Kc5 67.Ke4+/– Kd6 68.Ne8 Ke7?? 69.Nf6+= Kf6 70.Kd5 Ke7 71.Kc6 Kd8 72.Kb6 Kc8 73.Ka7 (73.Ka7 Kc7 74.b6 Kd6 75.b7+–) 1–0. Paauwe,J – Arendse,J, PK Zeeland, 2001.

6.Bd4 Nc6 7.Bc3 a5 8.b5 Ne5 9.e3+=.

5.Nf3 0–0

6.Qc2 Bg4 7.e4 a5 8.b5 Re8 9.Be2=.

6.Nc3 a6 7.d3 Bd7 8.e4= Nc6 9.d4 Bg4 10.Be2 Bf3=+ 11.Bf3 Nd4 12.0–0 b6 13.Nd5=+ c6 14.Ne7= Qe7 15.Bd4 ed4 16.Qd4 b5 17.Rad1 Rfd8 18.Rfe1 c5 19.bc5 dc5= 20.Qc3 b4 21.ab4 cb4 22.Qb3 a5 23.e5+= Ne8 24.Ba8+– Ra8 25.Qa4 h6 26.Rd7 Qc5 27.e6 fe6+/– 28.Re6 Nf6 29.Rde7 Qc4 30.Rc6 Qd3 31.h3 b3 32.Rcc7 b2? 33.Qa2+– Nd5?? 34.Rg7 Kf8 35.Rcf7 Ke8 36.Qa4 (36.Qa4 Qb5 37.Qb5 Kd8 38.Qd7) 1–0. alaamattar (2145) – tommyk (2055), net–chess.com, 2006.

6.d4 ed4 7.Nd4 c5 8.Nc2 Be6 9.e3+=.

4.a3 Bf5

5.Nc3 Nc6 6.e3 g6 (6...Qd7 7.Nf3=) 7.Nf3 Bg7 8.Rc1 0–0 9.h3 a5 (9...e4!? 10.b5 ef3 11.bc6 fg2 12.Bg2 bc6 13.Bc6 Rb8=) 10.b5= Ne7 11.Be2 Qd7 12.Nh2 (12.d4 ed4 13.Nd4 Be6+=) 12...d5 13.c5 (13.Ng4!? Ng4 14.hg4+=) 13...d4–/+ 14.c6 (14.Na4!?–/+) 14...bc6–+ 15.bc6 Nc6 (15...Qc6?! 16.Nb5 Qb6 17.ed4–/+ (17.Rc7? Ned5 18.Rc1 d3–+)) 16.Nb5 d3 17.Bg4 Bg4 (17...Ng4 18.hg4 Be6 19.a4–+) 18.Ng4–/+ Ng4 (18...Qd5 19.Qf3 Qb5 20.Nf6 Bf6 21.Ba1–+) 19.Qg4 Qg4 20.hg4 Rab8 21.a4 Nb4 22.Rc7 Nc2 (22...Rfc8 23.Rc8 Rc8 24.0–0–/+) 23.Kf1 (23.Kd1 Rfc8 24.Rc8 Rc8+=) 23...Rfc8 24.Rc8 Rc8 25.g3 (better is 25.e4!?–/+) 25...Rc4–+ 26.Nd6 Ra4 27.Ne8 Rb4 28.Bc3 Rb1 29.Kg2 Rh1 30.Kh1 a4 31.Ng7 Kg7 32.Be5 f6 33.Bc3 a3 34.g5 a2 35.Bf6 Kf7 36.Kg2 a1Q (36...Ne1!? 37.Kf1 Nf3 38.Ba1–+) 37.Ba1 Na1 38.Kf3 Nb3 39.Ke4 Nd2 40.Kd3 Nf3 41.Ke4 Ng5 42.Ke5 Nf3 43.Kf4 Nd2 44.Ke5 (44.e4 Nc4 45.Kg5 h5–+) 44...Nc4 (44...h5 45.e4–+) 45.Kd5 Nb2 46.e4 (46.f4 Nd1 47.Kd4 Kf6–+) 46...Nd1 47.f4 Ke7 (better is 47...Nc3!? 48.Ke5–+) 48.Kd4 Ke6 49.Kd3 h5 50.Ke2 Nb2 51.Kf3 Nc4 52.Ke2 g5! 53.fg5 Ke5 (better is 53...Kf7 54.Kf3 Kg6–+) 54.g6? (54.Kf3 Nd2 55.Kg2=) 54...Kf6–+ (54...Ke4?? 55.g7+–) 55.Kf3 Ne5 56.Ke3 Kg6 57.Kf4 Kf6 58.Ke3 Kg5 59.Kd4 (59.Kf2 Kg4 60.Kg2 Nf7–+) 59...Nf3 60.Ke3 Kg4 61.Kf2 Ng5 62.e5 Kf5 63.Ke3 Ke5 0–1. Matozan,Zvonko (2050) – Horvatic,Ivica (1880), Bosnjaci op, 2008. (=1.a3 Nf6 2.b4 e5 3.Bb2 d6 4.c4 Bf5)

5.d3 Nbd7 6.e4= Bg6 7.Be2 Be7 8.Nf3 Ng8 (8...c6 9.0–0=) 9.Nbd2 b6 (9...f5 10.0–0+=) 10.Qc2 (10.d4 Ngf6+/–) 10...c5 11.b5 Bf6 (11...a6 12.ba6 Ra6 13.0–0=) 12.0–0 Bh5 13.Nd4 Be2 14.Ne2 Nh6 15.f4 0–0 16.f5 (16.Rae1!?+=) 16...Bg5= 17.Nf3 Be3 18.Kh1 Ng4 19.Ng3 (19.Nc3 a6=) 19...Bd4 (19...Bf4 20.Bc1+=) 20.Bd4 cd4 21.Qd2 Nc5 22.Rfb1 h6 23.h3 Ne3 24.Nf1? (better is 24.Kg1=) 24...Qf6?? (better is 24...Nf1 25.Rf1 Nb3–+) 25.Ne3+/– de3 26.Qe3 g5 (26...a6 27.a4+/–) 27.g4 (27.Nh2 h5+–) 27...Kg7 28.Kg2 Rh8 29.Rd1 h5 (better is 29...Rhe8!?+/–) 30.Qg5+– Qg5 31.Ng5 Kf6 (31...hg4 32.hg4 a6 33.ba6 Ra6 34.Nf3+–) 32.Nf3 hg4 33.hg4 Ke7 34.Ra2 Rad8 (34...a6 35.d4 ed4 36.Rd4 ab5 37.cb5+–) 35.Re2 f6 36.d4 Nd7 37.de5 Ne5 38.Ne5 de5 39.Red2 Rd2 40.Rd2 Rc8 41.Rc2 Rc5 42.Kf3 Kd6 (42...Rc8 43.a4+–) 43.Ke3 (43.g5 fg5 44.Kg4 Ke7 45.Kg5 Rc8+–) 43...Kc7? (better is 43...Rc8+–) 44.Kd3 Kb7 45.Ke3 (better is 45.g5!? fg5 46.Rg2 a6 47.Rg5 ab5 48.cb5 Kc7 49.Rg7 Kd8+–) 45...a6?? (45...Kc7 46.g5 fg5+–) 46.a4 a5 (46...Rc7 47.Kf3 Rd7 48.g5 ab5 49.cb5 fg5 50.f6+–) 47.Rd2 (47.g5 fg5 48.f6 Rc8+–) 47...Rc7 (47...Rc4 48.Rd7 Kc8 49.Rd6 Ra4 50.Rf6 Ra3 51.Ke2+–) 48.Rd6 Kb8 (48...Rc4 49.Rf6 Rc3 50.Kd2 Rg3+–) 49.Rf6 Rh7 1–0. Satka,Martin – Zarow,Elzbieta, Brandenburg op Seniors, 2004.

5.d3 Be7 6.e3 +=.

5.d3 g6 6.e4= Bg4 (6...Be6 7.Nf3=) 7.Be2+= Be2 (7...h5 8.Nf3+=) 8.Ne2 (8.Ke2?! Bg7=) 8...Ng4 9.0–0 f5 (9...Qh4 10.h3 Nf6 11.Nd2+/–) 10.ef5 (10.h3 Nh6+/–) 10...gf5+= 11.Ng3 f4? (better is 11...Qh4 12.h3 Ne3+/–) 12.Qg4+– Nd7?? (better is 12...fg3 13.fg3 Qd7 14.Qh5 Kd8+–) 13.Qh5 Ke7 14.Nf5 (14.Nf5 Ke6 15.d4+–) 1–0. Wall,Bill – RamiUsss, chess.com, 2008.

5.d4 e4 6.Nd2 Be7 7.d5 (7.e3 a5=) 7...0–0 (7...c6 8.dc6 Nc6 9.e3=) 8.g3 (8.e3 a5=) 8...Nbd7 (8...c6 9.Bg2+=) 9.Bh3 Bh3 (9...Bg6 10.Kf1+=) 10.Nh3= Ng4 (better is 10...c6!?=) 11.Ne4+/– f5 (11...Nde5 12.Qc2+/–) 12.Nd2 b6 (12...Bg5!?+/–) 13.Nf4+– Rf7 (13...Qc8 14.Ne6 Rf7 15.h3+–) 14.Ne6 Qc8 15.Qc2 (15.h3 Nh6+–) 15...Nf8+/– 16.h3 Nh6 (16...Ne5 17.f4 Neg6 18.Nd4+/–) 17.Nf8 Qf8 18.0–0 Bf6 19.Bf6 Rf6 20.e3 Qf7 (20...Qe8 21.Kg2+/–) 21.Rae1 (21.Qa4 a6+–) 21...Qh5 (21...a5 22.Qa4+/–) 22.Kg2 Raf8 (22...Nf7 23.Nf3+/–) 23.Qa4+– Rg6 (better is 23...Nf7+–) 24.Qa7 f4 (24...Nf7 25.Qc7 Ne5 26.Qb6+–) 25.ef4 (25.Qc7 f3 26.Nf3 Qf3 27.Kh2 Ng4 28.Kg1 Nf2 29.Qg7 Kg7 30.Rf2 Rg3 31.Kh2 Qf2 32.Kh1 Rh3) 25...Nf5 (25...Qf5 26.Re4 (worse is 26.Qc7 Qf4 27.Ne4 Qf3 28.Kg1 Nf5+–) 26...Qd7 27.Nf3+–) 26.Qc7 (26.Nf3 Rh6 27.Ng5 Nd4 28.Qc7 Nf3+–) 26...Rh6 (26...Qh4 A) 27.Qb6 Ng3 28.Qd6 Nf1 (28...Rd6?! 29.fg3 Qd8 30.Ne4=) 29.Qg6 hg6 30.Kf1 Qh3 31.Ke2 Qa3–+; B) 27.Ne4 Qf4 28.Kh2+– (28.Qb6?! Nh4 29.Kh2 Nf3 30.Kh1 Qg4=)) 27.Rh1 (27.Qb6?! Qh3 28.Kf3 Qh5 29.g4 Qh3 30.Ke2 Qa3 31.gf5 Re8 32.Kd1 Qa1 33.Kc2 Re1 34.Re1 Qe1+–) 27...Rhf6 (27...b5 28.cb5 Nh4 29.gh4 Qd5 30.Ne4 Rf4 31.Qc8 Rf8 32.Qc2+–) 28.Qb6 Ng3 (28...Rg6+–) 29.fg3 (29.Kg3?! Rf4 30.Ne4 Qf3 31.Kh2 Re4 32.Re4 Qe4+–) 29...Rf4 (29...Qg6+–) 30.gf4 Qf5 31.Qd6 Qd3 32.Qe6 Kh8 33.Qe3 Qg6 34.Qg3 Qc2 35.Re2 h6 36.d6 1–0. Trkn – Bob, itsyourturn.com, 2001.

5.e3 a5 6.b5 b6 (6...Be7 7.d4 Nbd7 8.Nc3=) 7.Nf3. Cirulis,Ilmars (1905) – Carrasco,Emanuel (1800), FICGS, 2016.

5.g3 a5 A) 6.b5 c6 (6...Be4 7.Nf3 Bf3 8.ef3 Be7 9.Bg2 c6=; 6...Ra7 7.Bg2 Be7 8.Nf3 0–0 9.0–0 Re8=; 6...Be7 7.Bg2 c6 8.Nf3 cb5 9.cb5 Nbd7=; 6...Be6 7.d3 c6 8.Bg2 cb5 9.cb5 Qb6=) 7.Bg2 Be6 8.bc6 Nc6 9.Qa4 Rc8+=; B) 6.Bg2 ab4 (6...c6 7.b5 Be7 8.Nf3 cb5 9.cb5 Nbd7=) 7.Bb7 Ra7 8.Bg2 ba3 9.Na3 c6=.

5.g3 a6 6.Nf3 (6.Bg2 Nc6 7.Nf3 Be7 8.d4 e4 9.Nfd2 d5=) 6...Be7 (6...a5 7.b5 Be7 8.Bg2 0–0 9.Nc3 Re8=; 6...Be6 7.d3 Be7 8.Bg2 Nc6 9.Nbd2 0–0=; 6...Nc6 7.Bg2 Be7 8.d4 e4 9.Nfd2 d5=) 7.Bg2 0–0 8.0–0 c6 9.Nc3 Nbd7=.

5.g3 Nc6 6.Bg2 Qd7 (6...e4 7.d3 Qe7 8.de4 Be4 9.Nf3 Ne5=; 6...Qe7 7.Nf3 e4 8.Nd4 Nd4 9.Bd4 Qe6=; 6...a6 7.d4 ed4 8.Nf3 d3 9.ed3 Be7=) 7.Nf3 Bh3 8.0–0 Bg2 9.Kg2 Be7=.

5.g3 Nbd7 6.Bg2 (6.Nf3 a5 (6...Be7 7.Bg2 0–0 8.d4 Qe8 9.Nbd2 a5=; 6...Be6 7.d3 Be7 8.Bg2 c6 9.Ng5 Bf5=; 6...Nb6 7.d3 a5 8.Bg2 ab4 9.ab4 Ra1=; 6...e4 7.Nd4 Bg6 8.Bg2 c5 9.Nb5 a6=) 7.Bg2 c6 8.b5 cb5 9.cb5 Rc8+=) 6...c6 (6...a5 7.b5 Ra7 8.Nf3 Be7 9.d4 e4=) 7.Nc3 (7.Nf3 a5 8.b5 cb5 9.cb5 Rc8+=) 7...Be7 8.d4 (8.Nf3 d5 9.d4 e4+=) 8...0–0 (8...Nb6 9.Qb3–/+ ed4–/+) 9.e3 (9.Nf3!?= Qc7+=) 9...Nb6–/+ 10.de5 de5 11.c5 Nc4 12.Bc1 (12.Qc1 a5–/+) 12...Qd1 (12...a5 13.Qd8 Rfd8 14.Ra2–/+) 13.Nd1+= Rfd8 (13...e4 14.Ne2–/+) 14.Ne2 (14.Nb2 Nb2 15.Bb2 e4=) 14...Ne4 (better is 14...Rd3–/+) 15.Ra2? (better is 15.Nb2!? Ned2 16.Nc4 Nc4 17.e4+=) 15...Rd1!–+ 16.Kd1 Nf2 17.Ke1 Nh1 (17...Nd3 18.Kf1 Nc1 19.Nc1 Ne3 20.Kf2 Ng2 21.Rg1–+) 18.Bh1 Rd8 19.e4 Be6 20.Ra1 b6 21.cb6 ab6 22.Nc3 Rd3 23.Nb1 (23.Nd1 c5–+) 23...Bg4 24.Nd2 Re3 25.Kf1 Nd2 26.Bd2 Re2 27.Bc3 Rh2 28.Bg2 f6 29.Kg1 Rh5 30.Bf1 Be6 31.Be2 Rg5 32.Kg2 (32.Kf2 Rg6–+) 32...Rg6 (32...f5 33.Bf3 f4 34.Be5 Rg3 35.Kf2–+) 33.Bh5 Rh6 34.g4 (better is 34.Be2–+) 34...g5 (34...g6 35.Bd2 Bf8–+ (35...gh5?! 36.Bh6 hg4 37.Be3–+)) 35.Kg3 Bf7 0–1. Oertenberg,Goeran – Andersson,Waldemar, corr SSKK 2–99, 1987.

5.g3 Be4 A) 6.f3 Bf5 (6...Bg6 7.e4 Be7 8.Ne2 Nbd7 9.d4 a5=) 7.Bh3 Bh3 8.Nh3 Qd7 9.Nf2 Qe6=; B) 6.Nf3 a5 (6...Bf3 7.ef3 Nc6 8.Bg2 Be7 9.b5 Nd4+=) 7.Bg2 d5 8.Be5 ab4 9.ab4 Ra1=.

5.g3 Be6 A) 6.d3 a5 (6...Be7 7.Bg2 c6 8.Nf3 a5 9.0–0 ab4=; 6...Nbd7 7.Bg2 c6 8.Nf3 Be7 9.Ng5 Bf5=) 7.Bg2 ab4 8.ab4 Ra1 9.Ba1 c6=; B) 6.Bg2 c6 7.d4 Nbd7 8.Nd2 ed4 9.Bd4 d5=.

5.g3 Be7 6.Bg2 c6 7.Nf3 0–0 8.0–0 Nbd7 9.d3 a5=.

5.Nc3 Nbd7

6.d3 a5 7.e4 Bg6 8.Nf3=.

6.d3 c5 7.g3 (7.Nf3 Qb6=) 7...Be7 (7...cb4 8.ab4 d5 9.c5=) 8.Bg2 Rb8 (8...0–0 9.Nf3=) 9.Nf3+= 0–0 10.0–0 a6 11.Nd2 (11.e4 Be6+=) 11...b5= 12.cb5 (12.Bf3 h5=) 12...ab5 13.Nb3 (13.a4=) 13...cb4 (better is 13...Qb6!?+=) 14.ab4+= Be6 (14...Qb6!?+=) 15.Na5+/– Qb6 (15...Rb6!? 16.Nc6 Qe8+/–) 16.Nc6+– Rbe8 17.Ra5 d5 18.Ne7 Re7 19.Rb5 (19.Nb5 Rb8+–) 19...Qd6 20.Qa4 (better is 20.d4!? e4 21.Qb3+–) 20...d4+/– 21.Nb1 Nb6 (21...Bd5 22.Rc1+/–) 22.Qa6 (22.Qa5 Nfd5+/–) 22...Rb8 23.Rc1 (23.Nd2 Ree8+/–) 23...Rc7 (23...Bd7 24.Rbc5+/–) 24.Rbc5 Rbc8 (24...Rcc8 25.e3 de3 26.fe3+/–) 25.Qb5 (25.Ba3 Ne8+–) 25...Nfd7 26.Rc7 Rc7 27.Rc7 Qc7 28.Na3 f6 29.e3 de3 30.fe3 Qd6 (30...Kf7 31.Qc6 Qc6 32.Bc6+/–) 31.d4 (31.Qc6!? Qc6 32.Bc6 Kf7+/–) 31...ed4+/– 32.Bd4 Nd5 33.Bc5 (33.Bd5 Bd5 34.Nb1 Nf8+/–) 33...Qe5+= The isolani on e3 becomes a target 34.Bd4 Qd6 35.Nc2 (35.Bd5!? Bd5 36.Nb1+/–) 35...Ne3+= 36.Be3 (worse is 36.Ne3 Qd4 37.Kf2 Qd2 38.Qe2 Qb4+=) 36...Qd1 37.Kf2 (37.Bf1 Qc2 38.Qh5 g6+=) 37...Qc2= 38.Qe2 Qf5 39.Qf3 Qc2 40.Qe2 Qf5 ˝–˝. Senkyr,Vladimir (2200) – Vyhnalek,Lukas (1770), CZE–ChT1E, 2010.

6.e3 a5!?+=.

6.e3 Be7 7.Qf3+= Bg6 8.Qb7 0–0 9.g3 (9.Nf3 a5 10.Nb5 c5 11.ba5 Qa5= (worse is 11...Ra5 12.d3+=)) 9...e4 10.f4 ef3 11.Nf3 Ng4 (11...a5!? 12.Nd4 Rb8+=) 12.Bg2 Nb6 13.Qc6 Bf6 14.h3 Ne5 15.Ne5 Be5 16.d4 Bg3 17.Kd2 Qg5 18.Raf1 (18.Qc7?? Rac8 19.Qb6 Bf2–+) 18...Rae8 The backward pawn on e3 becomes a target 19.Nd1 Re7 20.Bc1 (20.h4!? Bh4 21.Rhg1+=) 20...Rfe8–/+ 21.Kc3 Re3?? (better is 21...Bb1–/+) 22.Ne3+= (22.Be3 Re3 23.Kb2 Re2 24.Kb3 Bc2 25.Ka2 Bd1 26.Kb1 Rb2 27.Kb2 Qd2 28.Kb1 Bc2 29.Ka2 Be4 30.Ka1 Qd4 31.Ka2 Qd2 32.Ka1 Be5) 22...Re3 23.Kb2 Re2 24.Ka1 Qh4 25.Bb2 (25.Rd1!?+=) 25...h6+= 26.Rd1 Nc4 27.Qc4 Rg2 28.Qc7 Qe4 29.Qc3 Rc2?? (better is 29...Bf5+=) 30.Qg3+– Bh5 (30...a5 31.Rhe1 (31.Qd6 Rb2 32.Qg6 Qe2+=) 31...Qd5 32.ba5+–) 31.Rhf1 (better is 31.Rhg1 Bg6+–) 31...g6?? (31...Bd1 32.Rd1 d5 33.Qb8 Kh7 34.Qa7+–) 32.Qd3 (32.Qd6 Qe8 33.Rde1 Qf8+–) 32...Qc6?? (better is 32...Qd3 33.Rd3 Be2+–) 33.Rc1 (better is 33.d5!? Qc8 34.Rde1 Rb2 35.Kb2 a5+–) 33...Rc1 34.Rc1 (34.Rc1 Qd5 35.Rc8 Kh7 36.Qc4 Qc4 37.Rc4+–) 1–0. Skrzypczak,Michal (1980) – Mrozek,Adam (1670), Mistrzostwa sekcji L.K.S. PIAST Srem POL, 2013.

6.g3 Be7 7.Bg2 c6 8.Rc1 Rb8 (8...0–0 9.Nf3+=) 9.e4 (9.Nf3 0–0=) 9...Bg6 10.Nge2 h6 11.0–0 0–0 12.d4 White prepares the advance c5 12...ed4 13.Qd4 Ne8 (13...Qb6 14.Qd1=) 14.f4 (14.Qa7 Ne5 15.Qd4 Bf6+/–) 14...Qb6+= 15.c5 (better is 15.Na4!? Qd4 16.Bd4+=) 15...dc5–/+ 16.Qd7 cb4 17.Kh1 bc3 18.Bc3 (18.Nc3 Bf6 19.Qd2 Nd6–/+) 18...Qc7 (18...Ba3 19.Ra1 Bc5 20.Qg4–/+) 19.Qd4 b6 20.a4 Bc5 21.Qd2 Nf6 (better is 21...Rd8 22.Qc2 f6–/+) 22.Qb2 (better is 22.Bf6 gf6 23.f5+/–) 22...Ne8 ˝–˝. Scharff,Georges (1680) – Habib,George (1770), Majeur–chT, 2001.

5.e3 Nc6

6.d4 ed4 7.b5 A) 7...Ne5 8.ed4 Ng6 9.Bd3 Bd3 10.Qd3 d5 11.c5 b6=; B) 7...Nb8 8.Bd4 Be7 (8...Nbd7 9.Nc3 Bg6 10.Nf3 a6 11.Bd3 ab5+=) 9.Nf3 c5 10.Bc3 0–0 11.Bd3 Bd3=; C) 7...de3 8.bc6 ef2 9.Kf2 Ne4 10.Ke2 bc6 11.Nd2 Rb8=.

6.d4 ed4 7.ed4 d5!?+= 8.c5 (8.Bd3 Bd3 9.Qd3 dc4 10.Qc4 Bd6 11.Qe2 Ne7+=) 8...Ne4 (8...Qe7 9.Be2 Be4 10.f3 Bf5 11.Kf2 Nh5=; 8...Be7 9.Nf3 a6 10.Bd3 Bd3 11.Qd3 0–0+=; 8...Bg4 9.Be2 Qe7 10.Nd2 0–0–0 11.b5 Nb8=; 8...Qd7 9.Nf3 a6 10.Be2 Be7 11.0–0 0–0=) 9.Nc3 Qh4 10.Ne4 Qe4 11.Qe2 0–0–0=.

6.d4 ed4 7.ed4 Qe7 A) 8.Qe2 0–0–0 (8...d5 9.Nf3 0–0–0 10.Nbd2 dc4 11.Qe7 Be7=) 9.Qe7 Be7 10.Nf3 Rhe8 11.Be2 d5+=; B) 8.Ne2 d5 9.Qa4 dc4 10.Nd2 a6 11.b5 Nd8+=; C) 8.Be2 d5 9.Nf3 dc4 10.0–0 b5 11.Nc3 a6+=.

6.d4 ed4 7.ed4 g6 8.Nf3= Bg7 (8...d5 9.Ne5 a5 10.b5 Ne7 11.Nc3 Bg7+=) 9.Be2 (9.d5 Ne5 10.Ne5 de5 11.Be2 Qe7=) 9...0–0 (9...Ne4 10.0–0 0–0 11.b5 Ne7=) 10.0–0 (10.d5 Ne5 11.Ne5 de5=) 10...Re8 11.b5 (11.Re1 d5=) 11...Nb8 (11...Ne7=) 12.Nbd2 Nbd7 13.a4 Bc2 (13...d5!?=) 14.Qc2+= Re2 15.Rfe1 Re6 16.Re6 fe6 17.c5 (17.Re1 Qe7+/–) 17...Rc8 (17...Nd5 18.Ne4+=) 18.Nb3 Nd5 19.Qd2 (19.Na5 b6 20.Nb7 Qf8+/–) 19...Qe7 (19...Qf6 20.Rb1=) 20.Rc1 Qf8 21.cd6 (21.Re1 Qf6+=) 21...cd6 22.Rc8 Qc8 23.Qc1 Qc1 24.Nc1? (better is 24.Bc1!? N7b6 25.a5+=) 24...N7b6–/+ 25.Ng5 Na4 26.Ba3 Bd4 27.Bd6 e5 28.Nd3 Nac3 29.Ne5 (29.Be5 Be5 30.Ne5 Nb5–+) 29...Nb5–+ 30.Nef3 (better is 30.Bb8–+) 30...Bf2! 31.Kf2 Nd6 32.Ne6 a5 33.Ned4 (33.Ke2 a4–+) 33...a4 34.Nc2 (34.Ke2 b5–+) 34...Nc4 35.Nfd4 a3 36.Nb3 a2 37.h3 (37.Ke2–+) 37...Nd2 (better is 37...Nc3–+) 38.Nd2= Nb4 39.Na1 b5 (better is 39...Nd5!?=) 40.Ke3+/– Nd5 41.Ke4 Nc3 42.Kd3 b4 (42...Nd5 43.g3+–) 43.Kc4 Nb1 ˝–˝. Wendler,Andre Luiz – Bertoli,Eduardo Zini, BRA SC–ch U20, 2003.

5.e3 Nbd7

6.Nc3 c6 (6...a5 7.d4+=) 7.Nf3= a5 8.b5 Rc8 (8...d5 9.d4 e4 10.Ne5=) 9.Rc1 (9.Be2 Be7=) 9...Be7 (9...cb5 10.Nb5 Be7 11.Be2=) 10.Be2 0–0 11.0–0 Re8 (11...d5 12.cd5 cd5 13.d4=) 12.d3 (12.d4 Qb6=) 12...d5 (12...cb5 13.Nb5 Nc5 14.d4 ed4 15.Nfd4= (worse is 15.Qd4 Nb3 16.Qf4 Nc1 17.Rc1 Rc5–/+)) 13.Na4 White intends c5 (13.d4 e4 14.Ne5 Be6=) 13...Bf8 (better is 13...cb5 14.cb5 Rc1 15.Qc1 Bd6+=) 14.Qc2?? (14.bc6 bc6 15.d4 e4=) 14...Bg4?? (14...cb5 15.Nc3 bc4 16.Nh4 cd3 17.Bd3–+) 15.Bd1? (15.Nc3 cb5 16.Nb5 dc4 17.dc4 Bc5=) 15...Bd6 (15...cb5 16.Nc3 bc4 17.dc4 Rc4 18.Nd2–+) 16.c5? (16.Nc3+=) 16...Bb8?? (16...cb5 17.Qd2 Bb8 18.Nc3–+) 17.d4 (17.b6 e4 18.Nd2 Bf5=) 17...Ne4 (17...cb5 18.Nc3 e4–/+) 18.Bc3?? (18.Ne5 Bd1 19.Rfd1 Ne5 (worse is 19...Be5 20.de5 Ne5 21.Nb6+/–; worse is 19...cb5 20.Nd7 Qd7 21.Nb6=) 20.de5 cb5=) 18...Re6?? (18...cb5!? 19.Nb2 b6 20.Ne5 Ne5 21.de5 Bd1 22.Rfd1 Rc5–+) 19.b6 (19.bc6 A) 19...Nc3? 20.cd7 (20.Qc3 bc6 21.Rb1 Bf3 22.Bf3 ed4 23.Qd4 Be5–/+) 20...Qd7 21.Nc3+– (21.Qc3?! Bf3 22.Bf3 Qa4+–); B) 19...bc6 20.Ne5 Bd1 21.Rfd1 Ne5 22.de5 Be5 23.Be5 Re5=) 19...Rh6 (better is 19...ed4!? 20.Nd4 Bh2 21.Kh1 Bd1 22.Rcd1 Bb8–+) 20.Qb2?? (better is 20.h3 Bf5 21.Qb2=) 20...ed4 (20...ed4 21.h3 dc3 (worse is 21...Nc3 22.Nc3 dc3 23.Qc3 Bf3 24.Bf3–+) 22.Rc3 Nc3 23.Qc3 Bf3 24.Bf3 Qg5–+) 0–1. Havlicek,Pavel (1685) – Kucera,Vladimir (1950), Rakovnik Czech Republic, Regional Team, 2015.

6.d3 c5 (6...a5 7.b5=) 7.e4 (7.Qf3 Be6 8.Qb7 cb4 9.ab4 d5=) 7...Bg4 8.Nf3 (8.Be2 Be2 9.Ne2 cb4 10.ab4 d5 11.cd5 Bb4 12.Bc3 Bc5=) 8...Be7 9.Be2 cb4 10.ab4 Qb6 11.Bc3 0–0 12.0–0 Bf3 13.Bf3 a6 14.Nd2 Qc7 15.Rc1 Rac8 16.Nb3 b6 17.Bd2 Nb8 18.d4 ed4 19.Nd4 Nc6? (better is 19...Nbd7+/–) 20.Nc6+– Qc6 21.e5! Qc7 (21...de5 22.Bc6 Discovered attack) 22.ef6 (22.ef6 Bf6 23.Qa4+–) 1–0. Satka,Martin – Schult,Otto (1605), Brandenburg Seniors op, 2003.

5.Nf3 Nbd7

6.Nc3 a5 7.d4 Be7 8.e3 e4 9.Nd2=.

6.Nc3 Nb6 7.e3 Be6 8.d3 Be7 9.Be2 0–0=.

6.Nc3 c6 7.e3 Be7 8.Be2 0–0 9.0–0 a5=.

6.Nc3 Be7 7.d3 a5 8.e4 ab4 9.ab4 Ra1=.

6.d3 a5 7.Nbd2 Bg4 8.h3 Bf3 9.Nf3=.

6.d3 a5 7.e4 Bg4 8.h3 Bf3 9.Qf3 ab4 +=.

6.d3 Bg4 7.e3 Be7 8.Be2 a5 9.b5 0–0=.

6.d4 a5 7.b5 Nb6 8.de5 Nc4 9.ef6=.

6.d4 Nb6 7.de5 de5 8.Qd8 Rd8 9.c5 Nc4+=.

6.d4 e4 7.Nh4 Bg6 8.Ng6 hg6 9.e3 c6+=.

6.e3 a5 7.d4 Be7 8.Be2 ab4 9.ab4 Ra1=.

6.e3 Be7 7.Be2 0–0 8.0–0 Bg4 9.d3 h6 10.Nbd2 Nh7 11.h3 Bf3 12.Nf3 f5 13.Nh2 Bg5 14.f4 ef4 15.ef4 Bh4 16.Nf3 c5 17.b5 (better is 17.Nh4!? Qh4 18.Bf3+/–) 17...Bg3+= 18.Nd2 Qh4 19.Rf3 (better is 19.Bf3 Bf4 20.Bb7+=) 19...Bf4–/+ 20.Nf1 Rf6?? (better is 20...Be5 21.Be5 Ne5–+) 21.Bf6+– Ndf6 22.Qe1 (better is 22.g3 Bg3 23.Rg3+/–) 22...Ng5?? (better is 22...Qe1 23.Re1 Be5+=) 23.Qh4+– Nf3 24.Bf3 Be5 25.Ne3 (better is 25.Re1 Re8+–) 25...Ba1 26.Nf5 Nh7 (26...Be5+–) 27.Qe7 Rf8 28.Nd6 (28.Bd5 Kh8 29.Nh4 Bd4 30.Kh2 Be5 31.Qe5 Ng5 32.Ng6 Kh7 33.Nf8 Kh8 34.Qe8 Nf3 35.gf3 b6 36.Ng6 Kh7 37.Bg8) 28...Ng5 (28...Bd4 29.Kh1 Nf6+–) 29.Bd5 1–0. Fournier,Frederic – carlosdamasceno, Active, 2005.

6.e3 Bg4 7.h3 Bh5 8.g4 Bg6 9.d3=.

6.g3 a5 7.Bg2 c6 8.b5 cb5 9.cb5 Rc8+=.

6.g3 Nb6 7.d3 Be7 8.Bg2 0–0 9.0–0 c6=.

6.g3 c6 7.Bg2 a5 8.b5 cb5 9.cb5 Qb6+=.

6.g3 e4 7.Nd4 Bg6 8.Bg2 c5 9.Nb5 a6=.

6.g3 Be6 7.d3 c6 8.Bg2 Be7 9.Ng5 Bf5=.

6.g3 Be7 7.Bg2 0–0 8.d4 Qe8 9.0–0=.

6.g3 Be7 7.Bg2 0–0 8.d4 Qe8 9.Nbd2 a5=.

5.Nf3 Be7

6.e3 0–0 7.Be2 a5 8.0–0 ab4 9.ab4 Ra1 =.

6.e3 0–0 7.Be2 e4 8.Nd4 Bg6 9.d3 d5 10.cd5 Qd5 11.0–0 Bh5? (better is 11...Bd6=) 12.Nc3+– Be2?? (better is 12...Qe5 13.Bh5 Bd6+–) 13.Qe2 (13.Nd5 Bd1 14.Ne7 Kh8 15.Rad1 ed3 16.Rd3 Ne8+–) 13...ed3?? (13...Qe5 14.de4 Ne4 15.Qb5 Qb5 16.Ncb5+/–) 14.Qd3 (better is 14.Nd5 de2 15.Ne7 Kh8 16.Ne2+–) 14...Qh5 (14...Qd7 15.Rad1 Rd8 16.Qc2+/–) 15.Qe2 (better is 15.Nf5 Bd6 16.Nd6 cd6 17.Qb5+/–) 15...Qh6?? (15...Qe2 16.Nce2 Rd8 17.Rfd1+=) 16.Nf3 (better is 16.Nf5 Qg5 17.Ne7 Kh8 18.Qb5 Qb5 19.Nb5+–) 16...Bd6 17.h3 Nc6 18.Rad1 Ne5 (18...a6 19.Nd5 Nd5 20.Rd5+=) 19.Ne5 Be5 20.Nd5 Nd5 21.Rd5 Bb2 22.Qb2 c6 23.Rd7 Rab8 24.Rfd1 f5 (24...Qh5 25.Qc2+/–) 25.Qd4 Qf6 (25...a6 26.Qc4 Kh8 27.R1d6+/–) 26.Qf6 (26.Qa7!? f4 27.Qd4 Qd4 28.R1d4 fe3 29.fe3+–) 26...Rf6+/– 27.Rd8 Rd8 28.Rd8 Rf8 29.Rd7 Rf7 30.Rf7 Kf7 31.Kf1 Ke6 32.Ke2 Kd5 33.Kd3 c5 34.bc5 Kc5 35.Kc3 (35.g4 g6+=) 35...a5 36.a4 b5 37.ab5 Kb5 38.g4 g6 39.gf5 gf5 40.f3 (better is 40.h4!?+=) 40...a4–/+ 41.e4 fe4 42.fe4 Kc5 43.e5 Kd5 44.Kb4 Ke5 45.Ka4 h5 46.Kb4 Kf4 47.Kc4 Kg3 48.Kd4 h4 (better is 48...Kh3 49.Ke3 Kg2–+) 49.Ke4= Kh3 50.Kf3 Kh2 51.Kf2 h3 52.Kf1 Kh1 53.Kf2 Kh2 54.Kf1 Kg3 55.Kg1 Kf3 56.Kh2 Kg4 57.Kg1 Kg3 58.Kh1 Kh4 59.Kh2 Kg4 60.Kg1 Kg3 ˝–˝. Fournier,Frederic (2075) – skint (1870), Active, 2004.

6.e3 a5 7.Be2 ab4 8.ab4 Ra1 9.Ba1 Nc6 =.

4.a3 g6

5.Qc2 Bg7 6.Nc3 (6.e4 a5=) 6...0–0 (6...Nc6 7.Nf3=) 7.Nf3 (7.e4 a5=) 7...Nbd7 (7...Bg4 8.Qd3+=) 8.g3 (8.e4 a5=) 8...Ne8 (8...Nb6 9.d3+=) 9.Bg2= f5 10.e4 (10.d3 Nef6=) 10...fe4+= 11.Qe4 (11.Ne4 Ndf6+=) 11...Nef6 12.Qe2 Re8 Black prepares the advance e4 (12...Nb6 13.0–0+=) 13.0–0= Nf8 (13...Nb6 14.d3=) 14.h3 (14.Rae1 c6=) 14...Ne6 (14...c6=) 15.Qd1 (15.Ne4 Ne4 16.Qe4 a5=) 15...c6 (15...e4 16.Ne1+=) 16.Qb3 (16.d3!?=) 16...e4+= 17.Nh4 (better is 17.Ne1!?+=) 17...Nd4–+ 18.Qd1 g5 (18...g5 19.d3 gh4 20.de4 Ne6–+) 0–1. Romsdal,Svein Erik – Isaksen,Eirik Nymo, Klubbmesterskap, 2005.

5.Nc3 Be6 6.e4 Nc6 7.Nf3 Bg7 8.Bd3 0–0 9.0–0=.

5.g3 Nc6 6.b5 Nd4 (6...Ne7 7.Bg2 Bg7 8.Nf3 a6 9.0–0 0–0=) 7.Bg2 Bg7 8.Bd4 ed4 9.Nf3 d5=+.

5.Nc3 Nc6

6.b5 Nd4 7.e3 Nf5 8.Nf3 Bg7 9.d4 ed4=.

6.e3 Bg7 (6...Be6 7.b5 Na5 8.Qa4 c5 9.d4 ed4=) 7.Nf3 0–0 8.d4 ed4 9.Nd4 Nd4=.

6.e4 a5 (6...Nd4 7.Nf3 Nf3 8.Qf3 Bg4 9.Qd3 Nh5=; 6...Bg7 7.Bd3 Bg4 8.Be2 Be2 9.Nge2 Nd7+=; 6...Be6 7.Nf3 Bg7 8.Bd3 0–0 9.0–0 Nd7=; 6...Bh6 7.Nf3 0–0 8.Be2 Nd4 9.0–0 Re8=) 7.b5 Nd4 8.Nf3 Bg4 9.Be2 Ne2=.

6.Nf3 Be6 7.e3 Bg7 8.Be2 0–0 9.0–0 Re8+=.

6.Nf3 Bf5 7.d3 Bg7 8.e4 Bg4 9.Be2 0–0=.

6.Nf3 Bg4 7.b5 Na5 8.Qa4 c6 9.h3 cb5=.

6.Nf3 Bg7 7.d4 ed4 8.Nd4 Nd4 9.Qd4 0–0=.

6.Nf3 Bg7 7.d4 Nd4 8.Nd4 ed4 9.Qd4=.

5.Nc3 Bf5

6.d3 Bg4 (6...Be6 7.Nf3 a5 8.b5 Bg7 9.e4 Nh5=; 6...a5 7.b5 Be6 8.Nf3 Bg7 9.e4 0–0=; 6...Bd7 7.Nf3 Bg7 8.e3 Nc6 9.Be2 0–0+=; 6...Bg7 7.e4 Be6 8.Nf3 a5 9.b5 0–0=; 6...Nc6 7.e4 Be6 8.Nf3 Bg7 9.Be2 a6=; 6...Be7 7.e4 Be6 8.Nf3 0–0 9.Be2 a5+=) 7.h3 Be6 8.g4 Bg7 9.Bg2 c6=.

6.e3 Nbd7 7.Be2 Bg7 8.Nf3 0–0 9.0–0 a5=.

6.e3 Bg7 7.Be2 Nc6 8.b5 Ne7 9.Nf3 a6=.

6.e3 Bg7 7.Nf3 Nbd7 8.Be2 0–0 9.0–0=.

6.Nf3 Nc6 7.d4 Bg7 8.de5 Ne5 9.Ne5 de5=.

6.Nf3 Bg7 7.d3 a5 8.b5 Bg4 9.e4 0–0+=.

6.Nf3 Bg7 7.e3 0–0 8.Be2 Nc6 9.b5=.

5.Nc3 Bg4

6.Nf3 a5 7.d4 Nbd7 8.h3 Bf3 9.ef3 ab4=.

6.Nf3 Nc6 7.b5 Na5 8.Qa4 c6 9.Rd1 Rc8=.

6.Nf3 Nc6 7.e3 Bg7 8.Be2 0–0 9.d3=.

6.h3 Be6 7.e4 Bg7 8.Nf3 Nc6 9.Be2=.

5.Nc3 Bg7

6.Rc1 0–0 7.Nf3 (7.e4 Nc6 8.Bd3 Nh5 9.Nd5=) 7...Bg4 (7...e4 8.Nd4+= c5 9.Nc2+=) 8.e4= Nbd7 (8...a5 9.b5=) 9.Be2 Qe7 10.h3 Be6 11.Ng5 Bh6 12.Ne6 fe6 13.0–0 Kh8. golly1 – carlosfandangos, ChessWorld.net, 2007.

6.Rc1 a5 7.b5 0–0 8.e4 Nbd7 9.Be2 =.

6.e3 0–0 7.Be2 Nbd7 8.Nf3 Re8 9.0–0 e4 10.Ne1 b6 11.f3 Bb7 12.Rb1 ef3 13.Bf3 Bf3 14.Nf3 Ng4 15.Nd5 Bb2 16.Rb2 c6 17.Nf4 Nge5 18.Qc2 Rc8 19.Ne5 de5 20.Ne2 Nf6 21.Ng3 Re6 22.c5 Qd5 23.Qa4 Rc7 24.cb6 ab6 25.Rc1 c5 26.bc5 Rc5 27.Rc5 bc5 28.Qc2 c4 29.Qc3 Nd7 30.a4 Rd6 31.Nf1 Qd3 32.Rc2 Qc3 33.Rc3 Rc6 34.d3 Nb6 35.a5+/– Nd7 36.Rc4 Ra6 37.Rc7 Nf6 38.Rc5 Nd7 39.Rd5 Ra7 40.Nd2 Kf8 41.Nc4 f6 42.Nb6 Nb6 43.ab6 Rb7 44.Rd6 Ke7 45.Rc6 f5 46.Kf2 Kd7+/– 47.Rc5 Rb6 48.Re5 Kd6 49.d4 Rb2 50.Kf3 Rb7 51.h4 Rb1 52.g4 fg4 53.Kg4 h6 54.h5 Rg1 55.Kf4 Rf1 56.Ke4 gh5 57.Rh5 Rf6 58.d5 Rg6 59.Kd4 Rg4 60.e4 Rg6 61.e5 Ke7 62.Ke4 Kf7 63.Kf5 Rg1 64.Rh6 Rf1 65.Ke4 Re1 66.Kd4 Rd1 67.Kc5 Rc1 68.Kd6 Ra1 69.Rh7 Kg6 70.Rc7 Kf5 71.e6 Ra6 72.Rc6 Ra8 73.e7 Kf6 74.Kd7 Kf7 75.d6 Ra7 76.Rc7 Ra8 77.Rc8 Ra7 78.Kd8 1–0. Aubertin,Tim (2000) – Morgenstern,Martin, Saarland–ch MB, 2007.

6.e3 0–0 7.Nf3 Nbd7 (7...e4 8.Nd4=) 8.d3 e4 (8...a5 9.Be2=) 9.de4 (9.Ne4 Ne4 10.Bg7 Nf2 11.Kf2 Kg7+=) 9...Ne4= 10.Qc2 Nc3 11.Bc3 Ne5 12.Ne5 de5 13.g3 (13.Bd3 Qe7+=) 13...c6 14.Bg2 Be6 15.c5 Qe7 16.0–0 f5 17.Rad1 Rad8 18.Rd8 Rd8 19.Rd1 Bd5 20.Rd2 Bg2 21.Kg2 Rd5 22.Qb3 Qf7 23.Qb2 Rd2 24.Qd2 Qd5 25.Qd5 cd5 26.b5 Kf7 27.c6 bc6 28.bc6 Ke6 29.Bb4 Bf6 30.f4 ef4 (30...e4 31.h3 d4–/+) 31.ef4 (31.gf4 d4 32.Kf3 de3 33.Bc5+=) 31...Bd8–/+ 32.Bc5 (32.Kf3 Bb6+=) 32...Bb6 33.Bb4 d4 34.a4 (34.Kf1 Kd5–+) 34...Kd5–+ 35.a5 (35.Kf1 Kc6 36.Ke2 Bc5–+) 35...Bc7 (35...Kc6?! 36.ab6 ab6 37.Kf3=) 36.Kf3 Kc6 37.Ke2 (37.a6 Kb5 38.Be7 Ka6–+) 37...Kb5 38.Bd2 (38.Be7 Ba5 39.Kd3 Bb4–+) 38...Ba5 39.Ba5 (39.Bc1–+) 39...Ka5 40.Kd3 Kb4 41.Kd4 a5 42.Ke5 a4 43.Kf6 a3 44.Kg7 a2 45.Kh7 a1Q 46.Kg6 Qh8 (46...Qb1 47.Kg5–+) 47.Kf5 Qh2 48.Kg4 Kc5 49.f5 (49.Kf3 Qh5 50.Kf2 Kd4 51.g4 Qh2 52.Kf3 Qh3 53.Ke2 Qg2 54.Ke1 Ke3 55.g5 Qe2) 49...Kd6 0–1. Kelbas,Anastasiya – Hrebenshchykova,Yelyzaveta (1725), Ukraine Chess Championship– U12, 2016.

6.e4 Be6 7.Nf3 Nc6 8.Bd3 Nd7 9.0–0 Nb6 10.Qe2 0–0 11.Nd5=.

6.Nf3 Nbd7 7.e4 Nb6 8.d4 ed4 9.Nd4 =.

6.Nf3 Bf5 7.d3 a5 8.b5 Nbd7 9.e4 Bg4+=.

6.e4 0–0

7.Be2 a5 8.b5 Nbd7 9.Qc2=.

7.Be2 a5 8.b5 Nfd7 9.Nf3 Nc5 10.0–0 f5 11.d3=.

7.Be2 a6 8.Nf3 Nc6 9.0–0 a5 10.b5 Nd4 11.d3=.

7.Be2 c5 8.b5 (8.Nf3 Nc6 9.b5 Nd4 10.0–0 Be6 11.d3=) 8...a6 9.ba6 Na6 10.Rb1 Ne8 11.Nf3=.

7.Be2 Nc6 8.Nf3 a5 9.b5 Nd4 10.0–0 Ne2 11.Qe2=.

7.Be2 Bd7 8.Nf3 (8.Rb1 Nc6 9.Nf3 Nd4 10.0–0 c6 11.d3=) 8...Nc6 9.0–0 Nd4 10.d3 Ne2 11.Qe2=.

7.Be2 Be6 8.Nf3 (8.d3 Nc6 9.Nf3 Nd7 10.0–0 f5 11.Qd2=) 8...Nc6 9.0–0 Nd4 10.d3 Nf3 11.Bf3=.

7.Be2 Re8 8.Nf3 (8.d3 c6 9.Nf3 d5 10.ed5 cd5 11.0–0=) 8...Nc6 9.d3 Nd4 10.0–0 Nf3 11.Bf3=.

7.Nf3 a5 8.Be2 (8.b5 Nbd7 9.Qc2 Nc5 10.Rd1 Nh5 11.d4=) 8...ab4 9.ab4 Ra1 10.Ba1 Nc6 11.b5=.

7.Nf3 Nc6 8.d3 Nd4 9.Nd4 ed4 10.Nb1 c5 11.Be2=.

7.Nf3 Nc6 8.Be2 Nd4 9.0–0 Nh5=.

7.Nf3 Nh5 8.Be2 (8.d4 ed4 9.Nd4 a5= 10.b5 Nf4 11.Nce2=; 8.d3 f5 9.h3 Nf4 10.g3 Ne6 11.Bg2=) 8...Nf4 9.0–0 Bg4 (9...f5 10.d3+= (10.h3 g5 11.Ne1+=) 10...fe4 11.de4=) 10.h3= Be6 11.Nd5 (11.d3=) 11...Ne2 12.Qe2 c6 13.Ne3 f5 14.ef5 gf5 15.Rfe1 Nd7 16.Nc2 Nb6 17.d3 Na4 18.Rab1 Nb2 19.Rb2 Qf6 20.b5 c5 21.Rbb1 Rae8 22.b6 a6 23.a4 Bd7 24.a5 Qg6 25.Nh4 Qh6 26.Nf3 e4 27.Nd2 Bc3 28.Red1 Ba5 29.de4 Bc6 30.Rb3 Kh8 31.Ne3 fe4 (31...Be4?! 32.Ne4 fe4 33.Qb2 Qg7 34.Qg7 Kg7 35.Rd6=) 32.Ng4 Qg7 33.Re3 Qb2 34.Nf1 (34.Nb3 Qe2 35.Re2 Bb6 36.Rd6 Rd8–/+) 34...Qe2–+ 35.Re2 Re6 36.Rb2 Bc3 37.Re2 Bd4 38.Nge3 Ref6 39.g4 d5! 40.Nf5 (40.cd5 Bb5; 40.Nd5 Bf2) 40...Ba4 41.Rdd2 dc4 (41...Rb6?! 42.Nd4 cd4 43.cd5+=) 42.Nd4 c3 (42...cd4 43.Rd4 Rb6 44.Rc4–/+) 43.Ra2–/+ cd4 (43...cd4 44.Ra4 d3 45.Ree4 Rf2–+) 0–1. Veiper,Andres (2185) – Raidaru,Mihkel (2215), EST–chA email 4th, 2002.

6.e4 a5

7.b5 0–0 8.Nf3 Be6 9.Be2 Nh5 10.0–0 Nf4 11.Re1=.

7.b5 Ra7 8.Nf3 (8.Be2 Nbd7 9.Nf3 Nc5 10.Qc2 Nh5 11.0–0=; 8.d4 ed4 9.b6 cb6 10.Nb5 Ra8 11.Qd4=) 8...Nbd7 9.Be2 Nc5 10.d3 0–0 11.0–0=.

7.b5 c6 8.Nf3 (8.Be2 cb5 9.cb5 0–0 10.Nf3 d5 11.Qc2=; 8.Qa4 0–0 9.Nf3 Nbd7 10.Qc2 Nc5 11.Be2=; 8.Rb1 0–0 9.bc6 bc6 10.Nf3 Na6 11.d4=; 8.bc6 bc6 9.Nf3 0–0 10.Rb1 Na6 11.d4=) 8...0–0 9.bc6 bc6 10.Rb1 Na6 11.d4=.

7.b5 Nbd7 8.Be2 Nc5 9.Qc2 0–0=.

7.b5 Nbd7 8.Nf3 Nc5 9.Qc2=.

7.b5 Nfd7 8.Be2 (8.Nf3 Nc5 9.Be2 f5 10.d3 0–0 11.0–0=; 8.Qc2 0–0 9.Nf3 Nc5 10.Be2 f5 11.0–0=; 8.Nge2 Nc5 9.Ng3 h5 10.Qc2 h4 11.Nge2=; 8.d3 0–0 9.Nf3 Nc5 10.Be2 f5 11.0–0=) 8...0–0 9.Nf3 Nc5 10.0–0 f5 11.d3=.

7.b5 Be6 8.Nf3 0–0 9.Be2 Nh5 10.0–0 Nf4 11.Re1=.

7.b5 Ng4 8.Be2 (8.h3 Nf6 9.Be2 Nbd7 10.Nf3 Nc5 11.Qc2=) 8...f5 9.ef5 gf5 10.d4 ed4 11.Nd5=.

7.b5 g5 8.Be2 (8.Nge2 Bg4 9.h3 Be6 10.Ng3 h5 11.Nf5=) 8...Nbd7 9.Rb1 Nc5 10.d3 Ne6 11.Nf3+=.

7.b5 h5 8.Nf3 Nbd7 9.Be2 h4 10.h3 Nc5 11.Qc2=.

7.b5 h6 8.Nf3 (8.Be2 Nbd7 9.Nf3 Nc5 10.Qc2 Nh5 11.0–0=) 8...Nbd7 9.Be2 Nc5 10.Qc2 g5 11.0–0=.

7.Nf3 ab4 (7...0–0 8.b5 Nfd7 9.Be2 f5 10.d4 fe4 11.Ne4=; 7...Nc6 8.b5 Nd4 9.Be2 Nh5 10.b6 cb6 11.Nd4=) 8.ab4 Ra1 9.Ba1 Nc6 10.Qb1 Bg4 11.Be2=.

6.e4 Nc6

7.Bd3 0–0 8.Nge2 Bg4 9.0–0 g5 10.Qc2 a6 11.Nd5=.

7.Bd3 a5 8.b5 Nd4 9.Nge2 Qe7 10.0–0 0–0 11.Qa4=.

7.Bd3 Bg4 8.Be2 Be6 9.Nf3 a5 10.b5 Nd4 11.Ng5=.

7.Bd3 Bg4 8.f3 Be6 9.Nge2 Qd7=.

7.Be2 a5 8.b5 (8.ba5 Nd4 9.Nf3 0–0 10.0–0 Ra5 11.d3=) 8...Nd4 9.Nf3 Be6 10.Ng5 0–0 11.Ne6=.

7.Nf3 A) 7...a5 8.b5 (8.ba5 Ra5 9.Be2 Nd4 10.0–0 0–0 11.d3=; 8.Qb1 ab4 9.ab4 Bg4 10.Ra8 Qa8 11.b5=) 8...Nd4 9.Be2 Nh5 10.b6 cb6 11.Nd4=; B) 7...Be6 8.Bd3 (8.Be2 a5 9.b5 Nd4 10.Ng5 0–0 11.Ne6=) 8...0–0 9.0–0 Nd7 10.Qe2 Nb6 11.Nd5=.

5.d3 Bg7

6.Nf3 0–0 7.Nc3 Re8 8.e4 Rf8 (8...c6 9.Be2=) 9.Be2+= Nbd7 10.0–0 Nh5 11.d4 (11.Bc1 a5 12.Be3 f5+=) 11...Nhf6 (11...Nf4 12.Nd5 Nd5 13.ed5+=) 12.c5 (12.de5 Ne5 13.Ne5 de5+=) 12...Ne8 (better is 12...ed4!? 13.Nd4 dc5 14.bc5 Nc5+=) 13.cd6 (13.de5 Ne5 14.Ne5 Be5+/–) 13...cd6 (13...Nd6 14.Nb5+=) 14.Rc1+/– b6 15.Nd5 (15.Bc4 Nef6+/–) 15...Bb7 16.de5 de5 17.Qb3 Rc8 (17...Nd6 18.Bd3+/–) 18.Rc8 Bc8 19.Ne3 (19.Rd1 Nef6+/–) 19...Qe7 20.Rc1 Bb7 21.Bd3 (21.Nd5 Qe6+/–) 21...Bh6+= 22.Re1 Be3 23.Re3 Nd6 24.a4 Rc8 25.h3 Qf6 26.a5 b5 27.Nd2 Qf4 e4 draws heavy fire (27...a6 28.Be2=) 28.Nf3 Qf6 29.Nd2 Qf4 30.Nf3 ˝–˝. Wall,Bill – Dizbee, internet, 2001.

6.Nf3 a5 7.e3 =+.

6.g3 0–0 7.Bg2 Re8 8.Nd2 c6 9.e3 Qb6 (9...a5 10.Ngf3+=) 10.Ne2 a5 11.Rb1 ab4 12.ab4 d5 13.0–0 Bg4 14.h3 Be2 15.Qe2 Ra4 (worse is 15...Qb4 16.Be5 Qe7 17.Bf6 Bf6 18.cd5+/–) 16.b5 cb5 (16...Ra2!?+=) 17.cd5+/– Nbd7 18.Ne4 (18.Rfc1!?+/–) 18...Nd5= 19.Nc3 Nc3 20.Bc3 b4 21.Qd1 Rea8 22.Qg4 The pressure on the isolated pawn grows 22...Nc5 Black prepares the advance b3 23.d4 ed4 24.Bd4 Bd4 25.Qd4 b3 26.Qc3 Rb4 27.Rfc1 b2 28.Rd1 Na4 29.Qc2 (29.Qe5 Rc8 30.Bd5 Qc7–+) 29...Rb3 (29...Qc5 30.Qc5 Nc5 31.Kh2+=) 30.Rd3? (30.Rd7 Nc3 31.Rb7 Ra1 32.Qb3 Qb3 33.Rb3 Rb1 34.Kh2 Nd1+=) 30...Rd3+= 31.Qd3 Rc8 32.Qa3? (better is 32.Qd2–/+) 32...Rc3–+ 33.Qa2 (33.Qe7 Rc1 34.Kh2 Rb1=) 33...Rc1 34.Kh2 Rb1 (34...Rb1 35.Qa4 Qf6–+) 0–1. Schott,Detlef (1875) – Visser,Dirk (2115), Niederrhein–ch, 2005.

5.d4 ed4

6.Qd4 Bg7 7.Nc3 0–0 8.Nd5 Nc6?? 9.Nf6+– Bf6 10.Qf6 Qf6 11.Bf6 Bf5 12.Nf3 Ne5 (12...Rfe8 13.e3+–) 13.Ne5 de5 14.Be5 Rae8 (14...Rfe8 15.Bd4+–) 15.Bc7 Bc2 (15...Rc8 16.Bd6 Rc4 17.Bf8 Kf8 18.f3+–) 16.Bd6 Rd8 17.Bf8 Kf8 18.Rc1 Bb3 19.e3 (19…h6 20.Be2+–) 1–0. mrkt – tunamonster, ICC, 2003.

6.Qd4 Bg7 7.Nc3 0–0 8.Nd5 Nd5?? 9.Qg7# 1–0. seehero (2130) – ctrl_reset, gameknot.com, 2003.

6.Qd4 Bg7 7.Nc3 0–0 8.Nd5 Nbd7 =.

6.Qd4 Bg7 7.Qe3 (7.Nf3 Nc6 8.Qd1 0–0+=) 7...Be6 8.Nf3 0–0 9.Ng5 (9.Qd3!?+=) 9...Bc4–/+ 10.Nd2 (10.Qc1 Bb3–/+) 10...Ba6 (10...Ng4 11.Qh3 Qg5 12.Nc4–+) 11.Nde4? (better is 11.Rb1!?–/+) 11...Ne4–+ 12.Bg7 Kg7 (better is 12...Ng5!? 13.Bf8 Kf8–+) 13.Ne4–/+ Re8 14.Qc3 Kg8?? (better is 14...f6 15.Ng3 Nd7–/+) 15.Nf6+– Kf8 16.Nh7 (better is 16.Ne8 Ke8 17.Rc1+–) 16...Kg8? (better is 16...Ke7+–) 17.Nf6 Kf8 18.Nh7 (18.Nd5 Re5 19.Nc7+– (19.Qc7?! Nc6 20.Rd1 Bc4 21.Qd8 Rd8+/–)) 18...Ke7 (18...Kg8 19.Nf6 Kf8+–) 19.Qf6+– Kd7 20.Qf7 Re7 (20...Kc8+–) 21.Nf8 (better is 21.Qg6 Kc8 22.Qg4 Nd7 23.Nf6+–) 21...Kc6?? (better is 21...Kc8 22.Qf3 Qe8 23.Qg4 Nd7 24.Nd7 Rd7+/–) 22.Rc1+– Kb6 23.Qf4 (better is 23.Qd5 Bb5 24.Ng6 c6 25.Ne7 Qe7+– (25...cd5?? 26.Nd5 Ka6 27.Nc7 Kb6 28.Na8 Ka6 29.Nc7 Kb6 30.Nd5 Ka6 31.e4 Bf1 32.Kf1+–)) 23...Nc6 24.Qe3?? (24.Ng6 Re8 25.a4+–) 24...Kb5 (better is 24...Re3 25.fe3 Qf8–+) 25.a4! Ka4 26.Ra1?? (better is 26.Qd2 Bc4 27.Rc4+–) 26...Kb4?? (better is 26...Kb5 27.Qf3 Kb6 28.Ng6 Be2+/–) 27.Rb1 (27.Qa3 Kc4 28.e4 Kd4 29.Rd1 Bd3 30.Qd3 Ke5 31.Qg3 Kf6 32.Qg6 Ke5 33.Qf5) 27...Kc4 28.Qd3 (28.Qb3 Kc5 29.Rc1 Kd4 30.Rd1 Bd3 31.Qd3 Kc5 32.Qc3 Kb6 33.Rb1 Nb4 34.Rb4 Ka6 35.Qa3) 28...Kc5+– 29.Rc1 (better is 29.Qc3 Bc4 30.e3 Re3 31.fe3 Qh4 32.g3 Rf8 33.gh4 Rf1 34.Rf1+–) 29...Kb6+/– 30.Qb3 Bb5 31.Rb1 (better is 31.e3!? a6 32.Ng6+/–) 31...a6 32.Ne6 (32.Ng6 Re4 33.f3 Rd4=) 32...Qd7 (32...Na5 33.Qd5 Qh8 34.e3+=) 33.Nf4 (33.Qe3 Ka5 34.Ra1 Ba4 35.Qc3 Nb4=) 33...Ka7= 34.Nd5 (34.e3 Ne5 35.Nd5=) 34...Nd4 Can e2 get defended? (better is 34...Re5 35.e3 Nd4+=) 35.Qb4?? (35.Qd1 Re4 36.Nf6=) 35...Ne2 (better is 35...Nc2 36.Kd2 Nb4 37.Rb4 Re5–+) 36.Ne7–/+ Qe7 37.Rb2? (better is 37.Kd1–+) 37...Ng3 38.Kd1 Nh1 (38...Nf1?! 39.Rf1 c5 40.Re1 Qe2 41.Ree2 Be2 42.Ke2 cb4 43.Rb4 Re8 44.Kd3–/+) 39.Bb5 Nf2! 40.Kc1?? (40.Rf2 ab5 Zwischenzug (40...ab5 Passed pawn)) 40...Qe3–+ 41.Qd2 Qd2 42.Rd2 Ne4 43.Re2 (43.Rd4 Nc5 44.Ba4 Na4 45.Ra4–+) 43...Nc3 44.Rc2 (44.Ba6 ba6 45.Re6 Rh8–+) 44...Nb5 45.h4 (45.Rf2 c5–+) 45...Rf8 46.g4 (46.Rc4 Rf1 47.Kd2 Rf2 48.Ke3 Rg2–+) 46...Rf4 (46...Rf1 47.Kd2 Rf4 48.h5–+) 47.Rg2 Nd4 (47...Rf1 48.Kd2 Rh1 49.h5 gh5 50.g5–+) 48.h5 (48.Kb2 c5–+) 48...gh5 49.gh5 Rh4 50.Rg7 c5 51.h6 (51.Rh7 Rh2 52.h6 a5–+) 51...Rh6 52.Rd7 (52.Kb2–+) 52...Ka8 (52...a5 53.Kb1–+) 53.Kd2?? (53.Rd8 Ka7 54.Rd7 a5–+) 53...Ka7 54.Kd3?? (54.Kc1 a5 55.Re7–+) 54...Kb6–+ 55.Kc4 (55.Rd8 Kc7 56.Rf8 b5–+) 55...Kc6 56.Re7 (56.Rd8 b5 57.Kd3 Rh3 58.Ke4 d5 59.Ke5 Re3 60.Kf4 Re4 61.Kg3 b4–+) 56...b5 (better is 56...Nf5 57.Re8 Rh3 58.Rc8 Kd7 59.Rf8–+) 57.Kc3 b4 58.Kc4 a5 (58...Rh3 59.Re3 d5 60.Kd3 Re3 61.Ke3 b3 62.Kf2 b2 63.Kg1 b1Q 64.Kf2 Qf5 65.Kg2 Qg4 66.Kf2 Qf3 67.Kg1 Ne2 68.Kh2 Qf2 69.Kh3 Qg3) 59.Kd3 a4 60.Kc4 a3 61.Re3 a2 62.Rh3 (62.Re1 Rh3 63.Re3 a1Q 64.Kd3 Qc3 65.Ke4 Qe3) 62...Rh3 ˝–˝. guest763 – guest1567, ICC, 1999.

6.Bd4 Bg7 7.g4 Bg4–/+ 8.Bg2 Bc8 9.Nf3 0–0 10.Nc3 a6 11.Qc2 Be6 12.Nd2 Bh6?? 13.Bb7+/– Nbd7 14.Ba8 Qa8 15.Rg1 Re8 16.f3 Bf4 17.e3 Bh2 18.Rg2 Be5 19.Be5 Ne5= 20.Nce4 Ne4 21.Ne4=+ Nf3 22.Kf2 Bf5 23.Nf6+= (23.Nf6 Kh8 24.Qd1+=) 1–0. wlittle (2175) – danieldharrison (1700), net–chess.com, 2005.

5.d4 e4

6.Nc3= Bg7 7.e3 0–0 8.Qc2 (8.Nge2 a5=) 8...Qe7 9.Nge2 (9.Nd5 Nd5 10.cd5 c6=) 9...c6 (9...a5 10.Nf4 c6 11.Be2=) 10.Ng3+= Re8 11.Be2 h5 12.b5 (12.Nf1 c5+=) 12...h4 13.Nf1 Bf5 14.Nd2 Nbd7 15.bc6 bc6 16.h3 Rab8 17.Rb1 Rb7 18.g4 (18.0–0 c5 19.Nb3 Reb8=) 18...hg3 19.fg3 Reb8 20.g4 Be6 21.g5 (21.Nde4 Ne4 22.Ne4 d5=) 21...Nh5 22.Rg1 (22.Nde4 Bf5 23.Bh5 gh5 24.Rf1 Rb2 25.Rb2 Rb2 26.Qb2 Be4 27.Ne4 Qe4 28.Qe2–/+) 22...Bh3 23.Nde4 Bf5 24.Bd3 d5 (24...Nb6 25.Bc1=+) 25.cd5= cd5 26.Nd5 Qe6 27.Nd2?? ( 27.Ndc3 Nf4 28.ef4 Bd4 29.Rg2=) 27...Bd3–+ 28.Qd3 Qd5 (28...Qd5 29.Qc4 Qd6–+) 0–1. guest1045 – superman_2 (1890), ICC, 2005.

6.e3 Bg7 7.Nc3 0–0 8.Qc2 Re8 9.Nge2 c6 10.h4 h5 11.a4 (11.Ng3 d5=) 11...a5 12.b5 Nbd7 13.Nf4 ˝–˝. Fabisch,Christian (2150) – Birk,Steffen (2235), Graz AUT, Steirische Landesliga, 2012.

5.e3 Bg7

6.Nc3 0–0 7.Nf3 a5 8.d4 ed4 9.Nd4 (worse is 9.Qd4 Nc6 10.Qd2 ab4 11.ab4 Ra1 12.Ba1 Nb4–/+) 9...d5 10.Be2 ab4 11.ab4 (11.ab4 Ra1 12.Qa1 dc4 13.Bc4=) 1–0. Krivoshapko,Alexander (2040) – Toder,Alexander (2015), Omsk–ch op, 2009.

6.Nc3 0–0 7.Nf3 e4 A) 8.Ng1 A1) 8...a5 9.b5 (9.f3 Bf5 10.d4 ed3 11.Bd3 Be6 12.Nb5+=; 9.d3 ed3 10.Bd3 Nc6 11.ba5 Ne5 12.Nf3+=; 9.d4 ed3 10.Bd3 Nc6 11.ba5 Ra5 12.Nf3+=; 9.Qb1 Re8 10.d4 ed3 11.Bd3 Nc6 12.Nf3+=) 9...Nbd7 10.f3 Nh5 11.Nh3 ef3 12.Qf3+=; A2) 8...Bf5 9.d4 (9.Be2 Nc6 10.g4 Be6 11.b5 Na5 12.Qa4+=) 9...ed3 10.Nf3 Ne4 11.Rc1 a5 12.Bd3+=; A3) 8...Re8 9.d4 c5 10.Be2 Nc6 11.Qd2 cd4 12.ed4+=; A4) 8...Nc6 9.d4 (9.d3 ed3 10.Nf3 Ne4 11.Rc1 a5 12.b5+=) 9...ed3 10.Nf3 Ne4 11.Rc1 a5 12.b5+=; B) 8.Nd4 c5 (8...a5 9.f3 Re8 10.Be2 ab4 11.ab4 Ra1 12.Qa1=) 9.Nc2 (9.Nb3 cb4 10.ab4 Nc6 11.Ra4 Ne5 12.Qc2=) 9...Bg4 10.Be2 Be2 11.Qe2 cb4 12.ab4=.

6.Nc3 0–0 7.Nf3 Bf5 8.d4 ed4 (8...e4 9.Nd2 c5 10.Nb3 cb4 11.ab4 Nc6 12.b5+=) 9.Nd4 (9.Qd4? Ne4 10.Qg7 Kg7 11.Ne4 f6–+) 9...Bg4 (9...Be6 10.Qf3 Qc8 11.Nd5 Bd5 12.cd5+=) 10.f3 (10.Be2 Be2 11.Qe2 a5 12.0–0+=) 10...Bd7 (10...Be6 11.Be2 Qe7 12.0–0=) 11.Be2 c5 (11...Re8 12.e4=) 12.Ndb5+= Bb5 13.Nb5 (13.cb5?! cb4 14.ab4 d5=) 13...d5 14.bc5 a6 15.Nc3 Qa5 16.cd5 Qc5 17.e4 Ne4 (17...Nd5!? 18.Nd5 Bb2=) 18.Ne4+/– (worse is 18.fe4 Bc3 19.Bc3 Qc3 20.Kf2 f5 21.ef5 Rf5 22.Bf3 Nd7–/+) 18...Qa5 19.Qd2 Qd2 20.Kd2 Bb2 21.Ra2 Be5 22.Bc4 (22.Ke3 Re8+/–) 22...b5 23.Bb3 Rd8 24.Ke3 Nd7 25.f4 Bg7 26.Rc2 Kf8 (26...Nf6 27.Nf6 Bf6 28.Rd1+=) 27.Rd1 +=. Grund,Karl Heinz – Nunez Casado,Francisco, corr ICCF, 1979.

6.Nc3 0–0 7.Nf3 Bf5 8.Be2 A) 8...Nc6 9.b5 (9.d3 a6 10.0–0 Qd7 11.Ng5 h6 12.Nge4=) 9...Na5 10.d4 Re8 11.Qa4 c6 12.de5+=; B) 8...a5 9.b5 (9.0–0 ab4 10.ab4 Ra1 11.Ba1 Na6 12.b5=; 9.d4 ab4 10.ab4 Ra1 11.Qa1 Nc6 12.de5=) 9...Re8 10.0–0 Nbd7 11.d3 e4 12.Ne4=.

6.d3 a5 7.Nf3 =+.

6.d3 c6 7.Nf3 0–0 8.Be2 Na6 9.0–0 Nc7 10.Nbd2 Re8 11.Rc1 Nd7 12.Ne4 Nf8 13.c5 d5 14.Nd6 Re7 15.Nd2 Ne8 16.Ne8 Qe8 17.e4 Be6 18.f4 ef4 19.Bg7 Kg7 20.Rf4 Bf5 21.Bg4 Ne6 22.Rf2 Bg4 23.Qg4 Qd7 24.Qf3 Kg8 25.e5 Ng7 26.d4 Rf8 27.g4 h6 28.Rcf1 Re6 29.h4 Qe7 30.Qg3 Kh7 31.Nb3 f5 32.Nc1 h5 33.g5 Qd7 34.Nd3 ˝–˝. Aubertin,Tim (2000) – Weber,Michael, Saarland–ch MB, 2008.

6.d3 c6 7.Nf3 0–0 8.Be2 Na6 (8...Nbd7 9.0–0=) 9.Qc2 (9.0–0 Bg4=) 9...Nc7 (9...c5 10.b5 Nc7 11.0–0=) 10.Nc3 Bd7 11.a4 (11.0–0 a5+=) 11...a6 (11...Ne6 12.0–0=) 12.0–0+= Qe7 13.d4 (13.a5 Rfe8+=) 13...Rfe8= 14.de5 de5 15.b5 ab5 16.cb5 cb5 17.Nb5 (17.ab5 Rec8=) 17...Nb5 18.ab5 Nd5 (18...Bf5 19.Qb3 Be6 20.Bc4 Ra1 21.Ra1 Bc4 22.Qc4=) 19.Rfd1 (19.Qe4 Ra1 20.Ra1 Qb4 21.Qb4 Nb4+/–) 19...e4 (19...Bf5!? 20.e4 Ra1 21.Ba1 Rc8=) 20.Ra8+/– (20.Rd5?! Ra1 21.Ba1 ef3 22.Bf3 Ba1+=) 20...Ra8 21.Bg7 (21.Rd5 ef3 22.Bf3 Be6+/–) 21...ef3 (21...Kg7 22.Rd5 ef3 23.Qb2 Qf6 24.Qf6 Kf6 25.gf3+= (worse is 25.Bf3 Ra1 26.Rd1 Rd1 27.Bd1 Bb5+=)) 22.Bf3+/– (22.Rd5? fe2 23.Qe2 Kg7–+) 22...Ne3 23.fe3 Qe3 (better is 23...Kg7!? 24.Qc3 Kg8 25.Bb7 Re8+/–) 24.Qf2+– Qf2 25.Kf2 Bb5 26.Bf6 b6?? (26...Bc6+–) 27.Ba8 1–0. Lebel Arias,Julia – Yilmaz,Gulsevil, Thessaloniki, 1984.

6.Be2 0–0 7.d3 Nc6 (7...a5 8.b5=) 8.Nd2 (8.Nf3 Bf5=) 8...Ne7 (8...Bf5 9.Ngf3=) 9.Ngf3 h6 (9...a5 10.0–0=) 10.0–0 Be6 (10...a5 11.Qc2=) 11.Qc2+= Nd7 (11...Nc6 12.d4 ed4 13.Nd4 Nd4 14.Bd4+=) 12.d4 c6 13.Rfd1 Qc7 14.Rac1 (14.Ne4 Rfd8+=) 14...Rac8 (14...f5 15.e4+=) 15.de5 Ne5 (15...de5 16.Ne4+=) 16.Ne4 d5 (16...Rcd8 17.c5 Nf3 18.Bf3+=) 17.cd5 (17.Ne5 Be5 18.Nf6 Bf6 19.Bf6 dc4 20.Bc4 Bc4 21.Qc4+/–) 17...Bd5 (17...Nf3 18.Bf3 (worse is 18.gf3 Nd5 19.Bg7 Kg7=) 18...Nd5 19.Bg7 Kg7 20.Qb2 f6 21.Nc5+/–) 18.Nc5 (18.Ne5 Be5 19.Nf6 Bf6 20.Bf6+/–) 18...b6? (18...Bf3 19.gf3 Rcd8 20.f4+=) 19.Na6 (better is 19.Be5 Be5 20.Na6+–) 19...Nf3+= 20.gf3 (20.Bf3 Qb7 21.Bg7 Kg7+=) 20...Qb7= 21.e4 (21.Bg7 Kg7 22.Rd2 Bf3 23.Bf3 Qa6+=) 21...Be6 22.Bg7 Kg7 23.Qb2 (23.Qd3 Kh7=) 23...Kh7 24.Qe5 (24.Qd4 Rfe8=) 24...g5 (24...Rfe8 25.Qf6=) 25.Rd6 (25.Qf6 Ng6=) 25...Ng6 26.Qf6 Nf4 27.Bf1 Rg8 28.Kh1 (28.Qd4 Bh3 29.Bd3 Rg6+=) 28...Rg6+= 29.Qe5 f6 (29...Bd7 30.Rg6 Ng6 31.Qf6+=) 30.Qd4 (better is 30.Qc3=) 30...Rcg8 Black plans g4 (better is 30...f5!?=) 31.Rdc6+/– Kh8 (31...R8g7!?+/–) 32.Nc7+– g4? (better is 32...Bb3+–) 33.Ne6 (33.Re6 gf3 34.Bc4 Nh3–+) 33...gf3 Threatening mate... how?. 34.Ng5 (34.h4 Ne6 35.Qd5 Rg1 36.Kh2–+) 34...hg5+/– 35.Rf6 (35.Qc3 Qh7 36.Rf6 Rf6 37.Qf6 Qg7+/–) 35...Qg7 36.Rd6 (36.e5 Re8+/–) 36...Qd4 37.Rd4 Re8 (37...Re6 38.Bc4 Rc8 39.Rcd1=) 38.h3 (38.Bc4!? Rh6 39.Rcd1+/–) 38...Rge6 39.Kh2 Nh5 (39...Ne2 40.Be2 fe2 41.f3+/–) 40.Rd5 (40.Bb5 R8e7+/–) 40...Re5 (40...Nf6 41.Rg5 Ne4 42.Rh5 Kg7 43.Bd3+/–) 41.Rc7 Nf6 42.Re5 Re5 43.Bd3 a5 (43...Ne4 44.Be4 Re4 45.Ra7+–) 44.b5 (44.Kg3!? ab4 45.ab4 Ne4 46.Kf3+/–) 44...Ne4 45.Be4 Re4 46.Rb7 Ra4 47.Rb6 Ra3 (47...Kg7 48.Kg3+/–) 48.Ra6 (48.Kg3 a4+/–) 48...a4 49.Kg3. Bulcourf,Carlos (2295) – Iglesias,Luis, Martinez Valle op2, 1993.

7.Nf3 Nbd7 8.d3 c6 9.Nc3 Re8 10.0–0 Nf8 11.e4 Ne6 12.Qc2 Nf4 13.Rfe1 Bg4 14.h3 Ne2 15.Qe2 (worse is 15.Re2 Bf3 16.gf3 Qd7+=) 15...Bd7 16.Qe3 Nh5 17.Ne2 Nf4 18.Nf4 ef4 19.Qf4?? (better is 19.Qe2+/–) 19...Bb2–+ 20.Rab1 Bg7 (20...Ba3?! 21.Rb3 Bb4 22.Rb4+=) 21.Qd6 Bh3! 22.Qd8 (22.gh3 Qd6 Discovered attack) 22...Rad8 23.gh3 Rd3 24.Nh2 (better is 24.Kg2!?–/+) 24...Rh3–+ 25.a4 White plans b5 25...h5 26.b5 (better is 26.c5–+) 26...Be5 27.Nf1 cb5 (better is 27...Ra3!? 28.Red1 Ra4 29.Ne3–+) 28.ab5 b6 29.Rbc1 Rc8 30.Rc2 (better is 30.Ne3!?–/+) 30...Rc3–+ 31.Rc3 Bc3 32.Rc1 Bd4 (32...Rc4 33.Ne3 Rc5 34.Nd5–+) 33.Rd1? (better is 33.Kg2–/+) 33...Rc4–+ 34.Ng3 Be5 35.Ne2 (35.Rd5 Bg3 36.fg3 Re4–+) 35...Kg7 (35...Re4!? 36.Kf1–+) 36.f3 Rb4 37.Rd5 Bb8 38.Kf2 a5 39.ba6 Ra4 40.Ke3 (40.Rd8 Ba7 41.Ra8 Ra6–+) 40...Ra6 41.Rb5 Bc7 42.Nd4 Ra5 43.Rb1 b5! 44.Kd3 (44.Rb5 h4 Passed pawn; 44.Nb5 Bb6 Combination) 44...b4! 45.Rb3?? (45.Rb4 h4 Passed pawn) 45...Ra3–+ 46.Ra3 (46.Ke2 Rb3 47.Nb3 h4–+) 46...ba3 47.Nc2 Bd6 (47...h4 48.Ke3 h3 49.Kf2–+) 48.Kc3 (48.e5 Be7–+) 48...Kf6 49.Kb3 g5 (better is 49...Ke5 50.Ne1–+) 50.Na3 (50.Ne3–+) 50...Ba3 51.Ka3 Ke5 52.Kb3 h4 53.Kc2 h3 54.Kd3 f5 (better is 54...Kf4!? 55.Kd2–+) 55.Ke2 fe4 56.fe4 Ke4 (56...h2 57.Ke3 h1Q 58.Kd2 Kd4 59.e5 Qg2 60.Ke1 Ke3 61.e6 Qe2) 57.Kf2 g4 58.Kg3 Kf5 59.Kh2 Kf4 60.Kh1 g3 61.Kg1 Kf3 Black prepares the advance g2 62.Kh1 (62.Kf1 h2 63.Ke1 Ke3 64.Kd1 Kd3 65.Kc1 h1Q 66.Kb2 Qb7 67.Kc1 g2 68.Kd1 g1Q) 62...g2 63.Kg1 (63.Kh2 Kf2 64.Kh3 g1Q 65.Kh4 Qg6 66.Kh3 Qg3) 63...h2! 64.Kh2 (64.Kh2 Kf2 Combination) 64...Kf2 65.Kh3 g1Q 66.Kh4 Kf3 (66...Qg6 67.Kh3 Qg3) 67.Kh5 Kf4 (67...Qg7 68.Kh4 Qg4) 68.Kh6 Kf5 69.Kh7 Kf6 70.Kh6 Qg6 0–1. Fournier,Frederic – Guest3327519, Partie amicale, 1m + 1s, 2008.

6.Be2 0–0 7.h4 Re8 8.Nc3 h5 9.f3 (9.Nf3!?=) 9...e4+= 10.f4 (10.Nh3 Nc6+=) 10...d5 11.cd5 Nd5 12.g4 Nc3 (12...hg4 13.h5 Nf6 14.h6+=) 13.Bc3+= Bc3 14.dc3 Qd1 15.Rd1 Bg4 16.Bg4 hg4 17.h5 Kg7 18.hg6 Kg6 19.Rd5 f5 20.Ne2 c6?? (better is 20...Nc6+=) 21.Rd6+– Kg7 22.Rhh6 (better is 22.Nd4 Kg8 23.Nf5+–) 22...a5?? (22...Rd8 23.Rdg6 Kf7+–) 23.Ng3 Kf7 (23...Rf8 24.Nh5 Kg8 25.Rhg6 Kf7 26.Rg7 Ke8+–) 24.Rhf6 Kg8 25.Nf5 Rf8 (25...Ra6 26.Rg6 Kh8 27.Rd2 g3 28.Rg3 Re7 29.Ne7 c5 30.Rh2 Rh6 31.Rh6) 26.Ne7 (26.Rg6 Kh8 27.Rg4 Rf7 28.Rh4 Kg8 29.Rg6 Rg7 30.Rg7 Kf8 31.Rh8) 26...Kg7 27.Nf5 Kg8 28.Nh6 (28.Rg6 Kh8 29.Rg4 Rf7 30.Rh4 Kg8 31.Rg6 Rg7 32.Rg7 Kf8 33.Rh8) 28...Kg7+– 29.Rg6 Kh7 30.Ng4 ab4 (30...Rf5 31.Rge6 Kg7 32.Nh6+–) 31.Rh6 (31.Rg5 Rf6 32.Rf6 ba3 33.Rh6) 31...Kg7 32.Ne5 Rg8 (32...Rf5 33.Rdg6 (worse is 33.cb4 b6+–) 33...Kf8 34.cb4+–) 33.Rhg6 (better is 33.f5 Ra5 34.f6 Kh6 35.f7 Kh7 36.Rh6 (36.fg8R?! Kg8 37.Rd8 Kg7=) 36...Kh6 37.fg8Q Re5 38.Qh8 Kg6 39.Qe5+–) 33...Kh7 34.Rh6 (34.ab4?! Rg6 35.Rg6 Ra1 36.Kf2 Ra2 37.Kg3 Nd7+–) 34...Kg7 35.Rhg6 Kh7 36.Rg8 (36.ab4?! Rg6 37.Rg6 Nd7+–) 36...Kg8 37.Rd8 (37.ab4?! c5+–) 37...Kg7 38.cb4 Kf6 (38...Ra3 39.Rb8 Re3 40.Kd2+–) 39.Nd7 (39.Rb8 Ra3 40.Kd2 Ra7+–) 39...Nd7 (39...Ke7 40.Rb8 Ra3 41.Ne5 Re3 42.Kd2+–) 40.Ra8 (40.Rd7?! Ra3 41.Kd2 Ra2 42.Kc3 Ra3 43.Kd2 Ra2 44.Kc3 Ra3 45.Kd2=) 40...Ke6 (40...Nb6 41.Rf8 Ke7 42.Rb8+–) 41.Ra7 b5 (41...Nb6 42.Rb7 Na4 43.Kd2+–) 42.Kd2 Nf6 (42...Nb6 43.Kc3+–) 43.Kc3 Kd5 (43...Nh5+–) 44.Rg7 Ne8 45.Rg5 Ke6 (45...Kd6+–) 46.Re5 Kd7 47.Re4 (better is 47.Re8 Ke8 48.Kd4 Ke7 49.Ke4 Ke6+–) 47...Nd6 (47...Nf6 48.Kd4 Ng4+–) 48.Rd4 Ke6 49.e4 (better is 49.Rd6 Kd6 50.Kd4 Ke7+–) 49...Nc4 (49...Ne8+–) 50.Rc4 bc4 51.Kc4 1–0. Eiji Honda,Helcio (1800) – De Souza,Moira Bonifacio (1800), Sao Bernardo do Campo BRA, 4th Open, 2012.

6.Nf3 e4 7.Nd4 0–0 8.Be2 c5 9.Nc2 Nc6 10.b5 (10.0–0!?=) 10...Ne5+= 11.0–0 Be6 12.Be5 de5 13.f3 ef3 14.Rf3 e4 15.Rf1 (15.Rf4 Nd7 16.Ra2 f5–/+) 15...Nd7 16.Ra2 Ne5 17.Na1? (better is 17.Ne1!?–/+) 17...Nc4–+ (worse is 17...Bc4 18.Bc4 Nc4 19.Nb3–+) 18.Nb3 (18.Rc2 Nb2 (18...Ba1?! 19.Bc4 Qd6 20.Be6 fe6 21.Qe2–/+) 19.Qc1 Nd3 20.Bd3 ed3–+ (20...Ba1 21.Be4 Rb8 22.Nc3 Bc3 23.Rc3+=)) 18...Na5 19.Na5 Ba2 (19...Qa5?! 20.Rc2 Bb3 21.Qc1–+) 20.Nc4 f5 21.Qc2 Bb1 22.Rb1 Qe7 23.Na5 Rfd8 24.Bc4 Kh8 25.Rd1 Rd7 26.Nb3 b6 27.a4 Rad8 28.a5 Qe5 29.g3 (29.Rf1 h6–+) 29...Qb2 30.Qb2 Bb2 31.a6 (31.Rf1 h5–+) 31...Bc3! 32.Kf2 (32.dc3 Rd1 Pinning (32...Rd1 Deflection)) 32...Bd2 33.Ke2 Bc3 34.Rc1 Be5 35.Be6 Rd3 36.Bc4 Rc3 37.Rc3 Bc3 38.h3 Kg7 39.g4 (39.h4 Be5 40.Kf2 Rd1–+) 39...fg4 40.hg4 Kf6 41.Kf2 Kg5 42.Kg3 Be1 43.Kg2 1–0. orangutanb4 (1990) – seaned (1955), kurnik, 2012.

6.Nf3 Bg4 7.Be2 Bf3 (7...e4!? 8.Nd4 Be2 9.Qe2 Nbd7=) 8.Bf3+= (8.gf3?! Nc6=) 8...Nbd7 (better is 8...c6!?+=) 9.Bb7+/– 0–0? (better is 9...Rb8 10.Bc6 0–0+–) 10.Ba8+– Qa8 11.0–0 Nb6 12.Qb3 a5 13.d3 ab4 14.ab4 Qd8 15.Nd2 Nbd7 (15...Qe7 16.e4+–) 16.Ra7 Ng4 17.h3 Nh6 18.Qa4 Nb6 (18...Qb8 19.Ra1 Nc5 20.bc5 Qb2 21.cd6 cd6 22.Ne4+–) 19.Qc6 Nf5 20.Rfa1 Ne7 21.Qc7 Nbc8 22.Rb7 Qe8 (22...f5 23.b5+–) 23.Ra8 Bh6 (23...d5+–) 24.Ne4 Nc6 (24...Qc6 25.Rc8! Rc8 26.Qe7 Rf8+–) 25.Nf6 Kh8 26.Ne8 Re8 27.Qf7 Nd8 (27...N6e7 28.Re7 Ne7 29.Qe8 Bf8 30.Qf8 Ng8 31.Qg8) 28.Qh7 1–0. pierred (2775) – vipernsx (2190), net–chess.com, 2016.

6.Nf3 0–0

7.Nc3 e4 8.Nd4+=.

7.Nc3 Re8 8.Be2 Nc6 9.b5 Ne7 10.d4 (10.0–0 e4 11.Nd4 Nf5=) 10...ed4 11.Nd4 Nf5 (11...c5 12.Nf3=) 12.0–0 Nd4 13.ed4 d5 14.cd5 (14.Rc1 dc4 15.Bc4 Bf5=) 14...Nd5 15.Nd5 Qd5 16.Rc1 Qd6 (16...c6 17.bc6 bc6 18.Bf3+/–) 17.Bf3 (17.Re1 Bf5=) 17...Rb8 (17...a6 18.Qa4=) 18.Qd2 (18.Qc2 Re7+=) 18...Bd7+= 19.Qa5 Qb6 (19...c6 20.Qa7 cb5 21.Qc5+= (21.Bb7 Re2 22.Bc3 Qc7–+)) 20.Qb6+/– cb6 (20...ab6? 21.Rc7 Bb5 22.Bd5+–) 21.a4 Rec8 (21...a6 22.Rc7 Rbd8 23.Rd1+= (worse is 23.Bb7 ab5 24.ab5 Re2=)) 22.Rfe1 (22.Rc8 Rc8 23.Bb7 Rc4=) 22...Rc1 (22...Be6 23.Rc8 Rc8 24.Bb7+=) 23.Rc1 a6 (23...Rc8 24.Rc8 Bc8 25.Kf1+/–) 24.Rc7 Be8 (24...Re8 25.Bc3 Bd4 A) 26.Bb7?? Bc3 27.f4 Bd4 (27...ab5?! 28.Rd7 ba4 29.Bd5–+) 28.Kf1 Bf5–+; B) 26.Rb7 Bc3 27.g4–+) 25.Be2+– (25.Rb7?! Rb7 26.Bb7 ab5 27.ab5 Bb5=) 25...ab5 (25...h6 26.Kf1+/–) 26.ab5 Bf8 (26...Rd8 27.Rb7 h5 28.Rb6+–) 27.d5 Bd6 28.Rc1 (28.Rc2 Ra8+–) 28...Bc5 (28...Ra8 29.Ra1 Ra1 30.Ba1+/–) 29.Ra1 (29.Rd1 Rd8+–) 29...Rd8 30.Bc4 Rc8 (better is 30...Kf8+–) 31.Be2?? (31.Ra7 Bf2 32.Kf2 Rc4+–) 31...Rd8 32.Bc4 (32.Rd1 Bd7+–) 32...Rc8 33.Ra4 (33.Ra7 Bf2 34.Kf2 Rc4+–) 33...Kf8 34.g3 (34.Ra7 Ke7+–) 34...Bd7+/– 35.Kg2 (35.Bf6 Bd6+/–) 35...Bf5 (35...Ke7 36.Kf3+/–) 36.Be2 (36.Kf3 Ke7+/–) 36...Rd8 (36...Ke7 37.g4 Bc2 38.Rc4=) 37.Bf3 (37.g4!? Bb1 38.Bf6+/–) 37...Bd3+= 38.Ra7 Rd7? (better is 38...Bb5 39.Rb7 Bc4+=) 39.Bf6+– Threatening mate... how? (39.Bf6 Re7 40.Be7 Ke7 41.Rb7 Ke8 42.g4+–) 1–0. Steffens,Olaf (2275) – Roehl,Rainer (2200), BL2–Nord, 2001.

7.Nc3 Re8 8.Be2 Nbd7 9.d3 Nf8 (9...c6 10.d4=) 10.0–0 Bg4 11.h3 Bf3 (11...Bd7 12.d4+=) 12.Bf3 (< 12.gf3 a5=+) 12...Rb8 13.Qa4 (13.d4 N6d7+=) 13…a6 unclear. marus – eggnog, internet live, 2001.

7.Nc3 Re8 8.Be2 e4 9.Nd4=.

7.d3 a5 8.b5 Nbd7 9.Be2 Nc5 10.Nc3 Bg4 11.0–0 Re8 12.h3 Bf3 13.Bf3 (worse is 13.gf3 Nfd7+=) 13...e4 14.de4 Nfe4 15.Qc2 Nc3 16.Bc3 Bc3 17.Qc3 f5? (better is 17...a4+=) 18.Rfe1 (better is 18.Bd5 Ne6 19.Bb7+–) 18…Qe7 1–0. Fournier,Frederic (1795) – jjg (2255), Active, 2008.

7.d3 Bg4 8.Be2 a6 9.Nbd2 b5 10.cb5 ab5 11.0–0 c5 (better is 11...c6!?=) 12.bc5+/– dc5 13.Ne5 Nfd7 14.Nd7 Qd7?? (14...Be2 15.Qe2 Nd7 16.Bg7 Kg7 17.Ne4+/–) 15.Bg7 (15.Bg4 Qd3 16.Be2 Qd7 17.Bg7 Kg7+–) 15...Kg7?? (better is 15...Be2 16.Qe2 Kg7+/–) 16.Bg4+– Qd3 17.Be2 Qf5 (17...Qd7 18.Qc1+–) 18.Nf3 (18.Bb5!? Rd8+–) 18...c4 19.Nd4 Qc5 20.Qb1 Ra4 21.Bd1 (21.Nb5!? Nc6+–) 21...Ra5 22.Be2 Re8?? (22...Ra4 23.Nb5 Nc6+–) 23.Rc1+– Na6 (23...Qe5 24.Qb4 Ra4 25.Qb5 Qb5 26.Nb5+–) 24.Qb2 Kg8 25.Rcb1 (better is 25.Nb3!? cb3 26.Rc5 Nc5+–) 25...Rb8 Black prepares b4 26.h3 b4 (26...h6 27.Bf3 Rb6 28.Rd1+–) 27.ab4 Ra1 28.Ra1 (28.bc5 Rb1 29.Qb1 Rb1 30.Kh2 Nc5 31.Bc4 Rb2+=; worse is 28.Qa1 Rb4 29.Rd1 Nc7+–) 28...Rb4 29.Qa3 Rb1 30.Kh2 (30.Rb1?! Qa3 31.Bc4 Nc5+=) 30...Qc7 31.g3 Rb6 32.Qa5 Nb8 33.Qc3 Nc6 34.Nc6 Rc6 (34...Qc6 35.Bc4 Qf6 36.Qf6 Rf6 37.Kg2+–) 35.Rc1 (better is 35.Ra8 Qc8 36.Rc8 Rc8 37.Bc4+–) 35...Qd6 36.Bc4 Qc7 (36...Rc7+–) 37.Bf7! Kf7 (37...Qf7 38.Qc6 Discovered attack (38.Qc6 Deflection; 38.Qc6 Overloading); 37...Kf7 38.Qc6 Discovered attack) 38.Qc6 Qc6 39.Rc6 Ke7 (39...h6 40.f4+–) 40.f4 1–0. Fournier,Frederic – cocogm666, Active, 2007.

7.d4 ed4 8.Bd4 Nc6+=.

7.d4 e4 8.Nfd2 Be6=.

7.Be2 b6 8.Nc3 (8.0–0 e4 9.Ne1 Nbd7=) 8...Bb7 (8...e4!? 9.Nd4 c5+=) 9.0–0+= Nbd7 10.d4 Ne4 11.Ne4 Be4 12.Nd2 Bb7 13.Bf3 Qc8 (13...Bf3 14.Qf3 f5 15.Qd5 Kh8 16.Rfd1+=) 14.Bb7 (14.Ne4 f5 15.Ng3 c5+=) 14...Qb7+= 15.d5 f5 16.f4 (16.Qa4 Nf6+=) 16...a5 17.Nf3 Rae8 18.Ng5 Rf7? (better is 18...c6+=) 19.Nf7+– Kf7 20.Rb1 (20.e4 fe4 21.Qg4 c6+–) 20...Qa7 (20...ab4 21.ab4 b5 22.e4+–) 21.b5 (21.Qf3 ab4 22.ab4 e4+–) 21...Bh6 (21...ef4 22.ef4 Nc5 23.Re1+–) 22.g4 (22.Qf3 ef4 23.Qh3 Bg7 24.Qh7 Nf6 25.Bf6 Kf6 26.Qh4 g5+–) 22...Rg8 (22...ef4 23.ef4 Bg7 24.gf5 Bb2 25.fg6 hg6 26.Rb2+–) 23.g5 Bf8 (23...Bg7 24.e4+–) 24.e4! Ke7 (24...fe4 25.fe5 Discovered attack) 25.ef5 (25.Qc2 h6+–) 25...Qb8 (25...gf5 26.Qd3 h6 27.Qf5+–) 26.f6 Kf7 27.Qg4 Nc5 (27...Qe8 28.fe5 de5 29.Qe4+–) 28.fe5 de5 29.Be5 Bd6 (29...Rh8 30.Rbe1+–) 30.Rbe1 (better is 30.Bd6 cd6 31.Rbe1 Re8+–) 30...Qd8 (30...Re8 31.Qh4 h5 32.Bd6 cd6 33.Kg2+–) 31.Bd6 cd6 32.Re7 Kf8 33.Rfe1 (better is 33.Rh7!? Nd3+–) 33...Rh8 34.Qe2 1–0. Rohrbacher – Appel, Ludwigshafen–ch, 1989.

7.Be2 e4 8.Nd4 c5 9.Nb3 Qe7 10.d4 (10.Nc3!?+=) 10...ed3–/+ 11.Bd3 Nc6 12.b5 Ne5 13.Be2 b6 (13...a6 14.ba6 ba6 15.0–0–/+) 14.N1d2 (14.0–0 a6–/+) 14...Bb7 (14...d5 15.0–0–+) 15.Nf3 Rad8 16.Nbd2 Nf3 (16...Ne4 17.Ne4 Nf3 18.Bf3 Bb2 19.Rb1 Be4 20.Rb2–+) 17.Bf3 d5 18.0–0 dc4 19.Bb7 Qb7 20.Qc2 Qd7 21.Nc4 Qb5 22.a4 Qc6 23.a5 (23.f3!?–/+) 23...b5–+ 24.Ne5 Qc7 25.Nd3? (25.Nf3 b4–+) 25...Rd3! 26.Qd3 (26.Bf6 Bf6 27.Qd3 Ba1 28.Ra1–+) 26...Ng4 27.g3 Bb2 28.Rab1 Bg7 (better is 28...c4!? 29.Qd1 c3 30.Qg4–+) 29.Qb5 Rc8 (29...c4!? 30.Rfd1–+) 30.Rfd1–/+ Nf6 (30...c4 31.Rd7 Qe5 32.Qb7–/+) 31.a6 c4 (31...Qe5 32.Qc4 Qh5 33.Rd4–/+) 32.Qb7 Qe5?? (32...Qc5!?–/+) 33.Rb5 (better is 33.Qc8 Bf8 34.Rd8 Kg7 35.Rf8 c3+–) 33...Qf5?? (better is 33...Qe8 34.Re5 Qe5 35.Qc8 Bf8+=) 34.Qa7 (better is 34.Rf5 Rf8 35.Rc5 c3+–) 34...Ne4 (better is 34...Qb5 35.Qb7 Qb7 36.ab7 Rb8–+) 35.Rd7 (better is 35.Rf5 gf5 36.Qb7 Rf8+–) 35...c3 (35...Qf2 36.Kh1 Qf1) 36.Rbb7 (36.Rf5 Bf6 37.Rc7+–) 36...c2 (36...Qf2 37.Kh1 Qf1) 37.Rf7–+ c1Q 38.Kg2 0–1. Coquelle,Arnaud (1760) – Duff,Rufus (2110), Saint Affrique FRA, 2014.

7.Be2 Be6 8.d3 Nbd7 9.Nbd2 a5 10.0–0 ab4 11.ab4 Ra1 12.Qa1 Qa8 13.Qa8 Ra8 14.Ra1 Ra1 15.Ba1 Nb6 16.h3 Na4 17.Bd1 Nb6 18.Bc3 Nfd7 19.e4 (19.Ng5 Nf8+=) 19...f5 20.Ng5 Bf7 21.Nf7 Kf7 22.f3 f4 23.Kf2 Bf6 24.g3 g5 25.g4 Nf8 26.c5 dc5 27.bc5 Nbd7 28.Bb3 Kg7 29.Bb4? (29.c6 bc6 30.Bc4 Kg6=) 29...c6 (29...Be7 30.Bc3 Bc5 31.Ke2–+) 30.Nc4 (30.Ke2 Be7 31.Bc3 Bc5–/+) 30...Be7 (better is 30...Ne6–/+) 31.Na5? (better is 31.Nd6=) 31...Bc5–+ 32.Bc5 Nc5 33.Bc4 Ng6 34.Ke2 Nh4 35.Nb3 Nb3 36.Bb3 Ng2 37.Kd2 Ne3 38.Kc3 Kf6 39.Kb4 Ke7 40.Kc5 Kd7 41.Bg8 h6 42.Bh7? (42.Kb6–+) 42...Kc7 43.Bf5 Nd1 (43...b6!? 44.Kb4–+) 44.Be6 (44.d4 b6 45.Kc4 Ne3 46.Kc3 Nf5 47.gf5 Kd6–+) 44...Nf2 45.d4 ed4 (better is 45...b6!? 46.Kc4–+) 46.Kd4 Nh3 47.Bc4? (47.e5 Ng1 48.Ke4 b5–+) 47...b5 (better is 47...Ng1 48.Ke5 Nf3 49.Kf6 Kd6–+) 48.Bb3 Ng1 49.Bd1 Nh3 50.Kc5 (50.Bb3 Kb6 51.e5–+) 50...Nf2 51.Be2 Nh1 52.e5 Ng3 53.Bd1 (better is 53.Bd3!? Kd7 54.Kb6–+) 53...h5 54.gh5 Nh5 55.e6 (55.e6 Ng7 56.Kd4–+) (1–0). Fournier,Frederic (2100) – Tinram (1975), ajedrez21.com, 2005.

7.Be2 Bf5 8.d3 Nbd7 9.Nbd2 Re8 10.0–0 d5 (better is 10...Nb6!?=) 11.cd5+/– e4 12.de4 Ne4 13.Ne4 (13.Bg7!? Kg7 14.Ne4 Be4 15.d6+/–) 13...Bb2+= 14.Ra2 Bg7 15.Ned2 (15.Ng3 Bg4+/–) 15...Ne5 (15...Nb6!? 16.Bc4 Nd5=) 16.Ne5 Re5 17.Nf3 (17.Bc4 a5 18.b5 Qd6+/–) 17...Re8 (17...Rd5!? 18.Nd4 Bd4=) 18.Bc4 a6 19.Qb3 b5 20.Be2 c6 21.Rd1 Qb6 (21...cd5 22.Nd4 Be6+=) 22.d6 (better is 22.Nd4!? Bd4 23.Rd4 cd5 24.Rad2+/– (24.Qd5? Be6–+)) 22...Be6= 23.Qc2 Ba2 24.Qa2 Rad8 25.Ng5 Qb7 26.Bf3 1–0. Fournier,Frederic – PePOING25, Active (5/0), 2005.

5.Nf3 Bg7

6.Nc3 a5 7.b5 Bf5 8.d3 0–0 9.e4=.

6.Nc3 Bf5 7.e3 Nbd7 8.Be2 0–0 9.0–0 a5=.

6.d4 e4 7.Nfd2 e3 8.fe3 Qe7 9.Qb3=.

5.g3 Bg7

6.Nf3 e4 7.Nd4 c5 8.Nb5 Be6 9.d3 a6 =+.

6.Bg2 0–0 7.Nf3 a5 8.0–0 ab4 9.ab4 Ra1 10.Ba1 Bd7 11.Nc3 Nh5 (11...Re8 12.d4=) 12.d4+= Nc6 (12...Be6 13.de5 de5 14.Qb1+=) 13.de5 Ne5 14.Ne5 Be5 15.Bb7 Qb8 16.Bg2 Qb4 17.Nd5 Qa4 (better is 17...Qc5!?+/–) 18.Be5 de5 19.Nc7 Qd1 20.Rd1 Ba4 21.Ra1 Bb3 22.c5 Rc8 (22...Nf6 23.c6 Bc4 24.Kf1+–) 23.Ra7 (23.Ra8 Ra8 24.Na8 Nf6+–) 23...Nf6 24.c6 e4 (24...Bc4 25.e4+–) 25.Ra8 (25.Bh3 Rf8+–) 25...Be6 (25...Rf8 26.h3+–) 26.Rc8 Bc8 27.Nb5 Kf8 28.Nd6 Ba6 29.c7 (29.Ne4?! Ne4 30.Be4 Be2+–; 29.Be4?! Ke7 30.Bd3 Bd3+/–) 1–0. Huebner,R – Galeb,A, Lugano olm, 1968.

6.Bg2 0–0 7.Nf3 e4 8.Nd4 c5 9.Nc2 cb4=.

6.Bg2 0–0 7.Nf3 e4 8.Ng5 Re8 9.0–0 h6 10.Nh3 Nbd7 11.Qb3 a5 12.Nc3 c6 13.Na4 Ne5 14.Bd4 Bg4 15.f4 ef3 16.ef3 Be6 17.Nb6 a4 18.Qc2 Bf5 19.Qd1 Ra6 20.Na4 Nc4 21.Nf2 Qa8 22.Qc1 c5 23.Qc4 cd4 24.Nb2 Ra3 25.Ra3 Qa3 26.Nbd3 d5 27.Qd4 Qa2 28.Nc1 Qc4 29.Qc4 dc4 30.f4 b6 31.d4 Ng4 32.Bc6 Re3 33.Re1?? (33.Ng4 Bg4 34.d5 Rc3–+) 33...Ra3 (better is 33...Re1 34.Kg2 Rc1 35.Ng4 Bg4–+) 34.Ng4 Bg4 35.Rd1?? (better is 35.Ne2–/+) 35...Bd4 (better is 35...Bd1 36.Kf2 Ra1–+) 36.Kg2?? (better is 36.Rd4 Rc3 37.Na2+/–) Bc3 (36...Bc3 37.Rd8 Kg7–+) 0–1. Wolf,Wolfgang (2175) – Barth,Gerald (2230), GER–ch36 V2 email, 2004.

6.Bg2 0–0 7.Nh3 c6 8.0–0 Be6 9.d3 h6+=.

6.Bg2 a5 7.Qa4 c6 8.b5 0–0 9.Nf3 e4 =.

6.Bg2 Nc6 7.Nf3 Be6 8.d3 0–0 9.0–0 h6 =.

6.Bg2 Qe7 7.Nf3 e4 8.Nd4 0–0 9.Nc3 c5 =.

6.Bg2 h6 7.Nf3 e4 8.Nd4 0–0 9.Nc3 Ng4 =.

4.b5 a6

5.a4 c6 6.e3 Be7 7.Be2 0–0 (7...ab5 8.ab5 Ra1 9.Ba1+=) 8.Qc2 (8.d4 ab5 9.ab5 Ra1 10.Ba1 e4+=) 8...c5 (8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5+=) 9.Nf3 (9.Nc3 Re8=) 9...Bg4 (9...e4 10.Ng1+=) 10.Nc3 b6 (10...ab5 11.ab5 Ra1 12.Ba1=) 11.d4 (11.0–0 Nbd7=) 11...ed4 12.ed4 cd4 (12...d5 13.dc5 Bc5 14.cd5 ab5 15.0–0=) 13.Nd4+= d5 (13...Be2 14.Qe2 ab5 15.ab5 Ra1 16.Ba1+=) 14.Bg4 Ng4 15.Nd5 (better is 15.Qf5 Nf6 16.Nd5 ab5 17.Nb5 Nd5 18.cd5 Bb4 19.Kf1+/–) 15...a5? (better is 15...Bc5+=) 16.0–0 (16.Nf5 Bb4 17.Kf1 Nd7+–) 16...Bd6 17.h3 Qh4?? (17...Nh6+–) 18.Nf5 Bh2 (18...Qh5 19.Nd6 Nh6 20.Nb6+–) 19.Kh1 Qd8 (19...Qg5 20.Nde7 Kh8 21.Qd2+–) 20.Nde7 Kh8 21.Bg7 1–0. Nyikos,Laszlo – Wiebke,Elfriede, 13 sen. LSenEM Brandenburg op, 2005.

5.a4 Nbd7 6.Nc3 ab5 7.ab5 Ra1 8.Qa1 Nc5 9.Nd5 Nd5 10.cd5 Be7 11.Nf3 0–0 12.d4 ed4 13.Bd4 Nb3 14.Qc3 Nd4 15.Nd4 Bf6 16.Qd3 c5 17.Nb3 Qe7 18.e4 (18.e3 Qe5 19.Qc4 Qb2–/+) 18...Re8–/+ 19.f3 Bg5 20.Be2 f5! 21.0–0 (21.ef5 Bf5) 21...fe4 22.fe4 Qe4 23.Qe4 Re4 24.Bf3 (24.Kf2 Bd7–+) 24...Rb4 25.Na1 (25.Na5 Rb5 26.Nc4 Be7–+) 25...Bf5 26.Kh1 Bf6 27.Be2 (27.h3 c4 28.Bh5 Bd3–+ (worse is 28...Rb5 29.Rf5 Rb1 30.Kh2 Ra1 31.Be8–+)) 27...Bb1 28.Rf6 (28.Bg4 h6 (28...Rg4?! 29.Rb1 Ba1 30.Ra1–+) 29.Bc8 Ba1 30.Bb7 Bd4–+) 28...gf6 0–1. Baer,Cy (1895) – Elschner,Gerald (2205), RSS4D easy–54, 2007.

5.a4 Be7 6.d4 Nbd7 7.e3+=.

5.d4 e4+=.

5.a4 Be6

6.e3 ab5 7.ab5 Ra1 8.Ba1 Bg4 (8...Be7 9.d4 Nbd7 10.Nd2+=) 9.Be2= h5 (9...Bf5 10.Nf3=) 10.Nc3 Be7 (10...Nbd7 11.d3=) 11.Nf3+= 0–0 (11...Qd7 12.h3 Bf5 13.0–0+=) 12.e4 (12.d4 Nbd7+=) 12...Nbd7 13.h3 Bf3 14.Bf3 h4 (14...Nb6 15.Be2+=) 15.g3 (15.0–0 Nb6+=) 15...hg3 (15...Nc5 16.0–0=) 16.fg3 Nb6 (16...Nc5 17.0–0=) 17.d3 Qd7 18.Bg2 (18.Na4 Na4 19.Qa4 c6=) 18...c6 (18...Ra8 19.0–0+=) 19.0–0+= c5 (19...Ra8 20.Bb2+=) 20.Bb2 Ra8 21.Qf3 g6 (21...Qe6 22.Bc1+=) 22.Nd5 (22.Bc1 Ra1+/–) 22...Nbd5 23.ed5 (23.cd5?! Qb5 24.Bc1 Ra1+=) 23...Ra2 24.Bc1 Qd8 (better is 24...Ra1!?+/–) 25.Bg5+– Qa8?? (better is 25...Kg7 26.g4 Ra4+–) 26.h4 (better is 26.Bf6 Qe8+–) 26...Qa4 (26...Ra1 27.Bf6 Rf1 28.Qf1 Qd8 29.Be7 Qe7+–) 27.Bf6 Kf8 (27...Bf8+–) 28.Be7 Ke8 (28...Ke7 29.Qf7 Kd8 30.Bh3 Qb5 31.cb5 Rg2 32.Kg2 c4 33.Qd7) 29.Qf7 Kd7 30.Bd6! 1–0. Taulien,Hans_Juergen (2350) – Tiedemann,Joern (2125), remoteschach.de, 2002.

6.e3 Nbd7 7.d4 (7.Nf3 ab5 8.ab5 Ra1 9.Ba1 g6=) 7...ed4 8.Bd4 d5 (8...ab5 9.ab5 Ra1 10.Ba1+=) 9.cd5 Bb4 10.Nd2 Bd5 11.Ne2?? (better is 11.Ngf3= is the best chance) 11...Ne4–+ 12.Nf4 Bd2 13.Ke2 Ndc5 14.Nd5 Qd5–+ 0–1. Orlik,A (2000) – Buczinski,Henryk (2095), corr Polf.OMOK POL, 1992.

6.e3 Be7 7.d4 ed4 8.Bd4 =+.

5.a4 Be7

6.Nc3 A) 6...ab5 A1) 7.cb5 Nbd7 (7...Bg4 8.h3 Bf5 9.g4 Be6 10.Bg2 d5 11.g5 Ng8 12.h4 h6+=; 7...d5 8.Nf3 Nbd7 9.Qc2 Ra5 10.Rc1 0–0 11.e3 Re8 12.Be2 Bc5+=; 7...0–0 8.Nf3 e4 9.Nd4 d5 10.d3 Bb4 11.e3 c5 12.bc6 Nc6+=) 8.e3 Ra5 9.d4 0–0 10.Rc1 e4 11.d5 Nc5 12.Qc2 Re8+=; A2) 7.ab5 Ra1 8.Ba1 0–0 9.Nf3 Nbd7 10.d4 ed4 11.Nd4 Ne5 12.e4 Nfd7=; B) 6...Be6 B1) 7.e4 0–0 (7...Nbd7 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 Nc5 11.d4 Nce4 12.Ne4 Ne4=; 7...ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.Nf3 Nc5 11.d4 Nce4 12.Ne4 Ne4=) 8.Nf3 Nbd7 9.Ng5 Nc5 10.Ne6 fe6 11.Qe2 Nb3 12.Ra2 Nd4+=; B2) 7.e3 Nbd7 (7...ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.Nf3 0–0 11.d4 c5 12.bc6 bc6=; 7...0–0 8.Nf3 Nbd7 9.d4 Bf5 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Re8=; 7...c5 8.Nf3 0–0 9.Be2 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.d3 Re8=) 8.d4 ed4 9.ed4 d5 10.Nf3 0–0 11.c5 ab5 12.Bb5 b6=; C) 6...Bg4 C1) 7.d4 Nbd7 (7...0–0 8.Nf3 ed4 9.Qd4 Re8 10.Nd5 Nbd7 11.e3 Bf3 12.gf3 Ne5+=; 7...ed4 8.Qd4 Nbd7 9.Nf3 Nc5 10.Qf4 ab5 11.ab5 Ra1 12.Ba1 Be6+=) 8.Nf3 ed4 9.Qd4 Nc5 10.Qf4 ab5 11.ab5 Ra1 12.Ba1 Be6+=; C2) 7.g3 Nbd7 (7...Be6 8.Bg2 c6 9.bc6 Nc6 10.Nd5 0–0 11.Rb1 Rb8 12.f4 ef4+=; 7...c6 8.Bg2 Be6 9.bc6 Nc6 10.Nd5 0–0 11.Rb1 Rb8 12.f4 ef4+=; 7...ab5 8.ab5 Ra1 9.Qa1 Be6 10.Bg2 Bc4 11.Bb7 d5 12.Nf3 d4+=) 8.Bg2 Nc5 9.Ba3 Nfd7 10.h3 Be6 11.Bd5 0–0 12.d3 Bf6+=; C3) 7.Nf3 Nbd7 (7...ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.d4 0–0 11.h3 Bf3 12.gf3 ed4+=; 7...0–0 8.e4 Nbd7 9.h3 Bh5 10.d4 ab5 11.ab5 Ra1 12.Ba1 Qa8+=; 7...c5 8.e4 ab5 9.ab5 Ra1 10.Ba1 0–0 11.Be2 Nbd7 12.0–0 Qc7=) 8.d4 ed4 9.Qd4 Nc5 10.Qf4 ab5 11.ab5 Ra1 12.Ba1 Be6+=; C4) 7.h3 Be6 8.e4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Nf3 0–0 12.d4 ed4=; D) 6...0–0 D1) 7.e4 Nbd7 8.d4 ed4 9.Qd4 Nc5 10.Rd1 ab5 11.cb5 Be6 12.Nf3 Re8+=; D2) 7.e3 c5 (7...Nbd7 8.Be2 ab5 9.ab5 Ra1 10.Qa1 Nc5 11.Nf3 Bg4 12.d4 ed4=; 7...ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.Nf3 e4 11.Nd4 Nc5 12.d3 ed3+=; 7...Re8 8.Nf3 Bg4 9.Be2 e4 10.Ng5 Bf5 11.Qc2 ab5 12.ab5 Ra1=) 8.Qf3 Re8 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bb2 Qb4+=; D3) 7.d4 Re8 (7...Nbd7 8.Nf3 ed4 9.Nd4 Nc5 10.e3 ab5 11.ab5 Ra1 12.Ba1 d5=; 7...ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.Nf3 Re8 11.e3 c5 12.bc6 bc6=; 7...ed4 8.Qd4 Nbd7 9.e4 Nc5 10.Rd1 ab5 11.ab5 Re8 12.Nge2 Ra5+=) 8.Nf3 ed4 9.Qd4 Nbd7 10.Rd1 Nc5 11.e3 Bf5 12.Qf4 Bc2–/+; D4) 7.Nf3 ab5 (7...Nbd7 8.d4 ed4 9.Nd4 ab5 10.ab5 Ra1 11.Ba1 Ne5 12.e4 Nfd7=; 7...Bf5 8.e3 Nbd7 9.d4 Re8 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Bg4=) 8.ab5 Ra1 9.Ba1 Nbd7 10.d4 Re8 11.e3 c5 12.bc6 bc6=.

6.d4 ed4 7.Bd4 (7.Nf3 d5 8.Qd4 c5 9.Qf4 0–0 10.e3 Be6 11.Nc3 ab5 12.Nb5 Na6+=) 7...ab5 (7...0–0 8.e3 c5 9.bc6 Nc6 10.Nf3 Bg4 11.Be2 d5 12.cd5 Nd5+=; 7...Nbd7 8.e3 0–0 9.Nf3 Nc5 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Bf5=; 7...c5 8.Bb2 0–0 9.Nc3 Qa5 10.Qd2 Be6 11.e3 Nbd7 12.Nf3 Ne5+=) 8.cb5 c5 9.bc6 Nc6 10.e3 Nd4 11.Qd4 Qa5 12.Nd2 Bd7+=.

6.d4 Nbd7 7.e3+=.

6.d4 e4 A) 7.e3 ab5 (7...0–0 8.Qc2 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nc3 Qa5 12.Qa4 Qb6+=; 7...Bf5 8.Nc3 Nbd7 9.Nge2 0–0 10.Ng3 Bg6 11.ba6 Ra6 12.Qc2 Re8=; 7...d5 8.cd5 Nd5 9.Ba3 Ba3 10.Ra3 ab5 11.ab5 Ra3 12.Na3 Be6+=) 8.ab5 Ra1 9.Ba1 d5 10.Nc3 0–0 11.Qc2 c6 12.Be2 cb5+=; B) 7.Nc3 0–0 (7...ab5 8.ab5 Ra1 9.Ba1 0–0 10.Qb1 Bf5 11.e3 d5 12.cd5 Nd5+=; 7...Bf5 8.Qc2 Qd7 9.e3 ab5 10.ab5 Ra1 11.Ba1 c6 12.Nge2 d5=; 7...d5 8.e3 0–0 9.Qc2 ab5 10.ab5 Ra1 11.Ba1 c6 12.Be2 cb5+=) 8.Qc2 ab5 9.ab5 Ra1 10.Ba1 c6 11.e3 d5 12.Be2 cb5+=; C) 7.d5 0–0 (7...Nbd7 8.Bd4 ab5 9.cb5 Nc5 10.Nc3 Ra5 11.Qc2 0–0 12.Rc1 Bf5+=) 8.e3 Nbd7 9.Be2 Nc5 10.Nd2 Bf5 11.Nb3 Nfd7 12.Nd4 Bg4+=; D) 7.Qc2 ab5 (7...Bf5 8.Nc3 Qd7 9.e3 ab5 10.ab5 Ra1 11.Ba1 c6 12.Nge2 d5=; 7...Be6 8.d5 Bf5 9.Nf3 Nbd7 10.Nd4 Bg6 11.e3 Nc5 12.Nd2 0–0=; 7...0–0 8.Nc3 ab5 9.ab5 Ra1 10.Ba1 c6 11.e3 Qa5 12.Qa4 Qa4+=) 8.ab5 Ra1 9.Ba1 0–0 10.d5 Bf5 11.Bd4 Nbd7 12.Nc3 Bg6+=.

6.e3 0–0 7.Nc3 (7.d4 e4 (7...Nbd7 8.Be2 Re8 9.Nd2 ab5 10.ab5 Ra1 11.Ba1 ed4 12.Bd4 Nc5=; 7...ab5 8.ab5 Ra1 9.Ba1 Bf5 10.Ne2 Nbd7 11.Ng3 Bb1 12.Qb1 c5=; 7...ed4 8.Bd4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Nf3 Nc5 12.Be2 Bf5=) 8.Nc3 d5 9.Qc2 ab5 10.ab5 Ra1 11.Ba1 c6 12.Be2 cb5+=; 7.Be2 Be6 (7...Re8 8.d4 Nbd7 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 e4 12.Nfd2 d5=; 7...ab5 8.ab5 Ra1 9.Ba1 e4 10.d3 Nbd7 11.de4 Ne4 12.Nf3 Bf6=; 7...Nbd7 8.d4 ab5 9.ab5 Ra1 10.Ba1 e4 11.d5 Nc5 12.Bd4 Bf5+=) 8.d4 ed4 9.Bd4 d5 10.Nd2 dc4 11.Ngf3 Bb4 12.Rc1 c5+=; 7.Nf3 Nbd7 (7...ab5 8.ab5 Ra1 9.Ba1 e4 10.Nd4 Nbd7 11.Nc3 Nc5 12.d3 d5=; 7...e4 8.Nd4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Nc3 Nc5 12.d3 d5=) 8.Nc3 e4 9.Nd4 ab5 10.ab5 Ra1 11.Qa1 Nc5 12.Be2 d5+=) 7...c5 (7...ab5 8.ab5 Ra1 9.Qa1 Nbd7 10.Be2 Nc5 11.Nf3 Bg4 12.d4 ed4=; 7...Re8 8.Nf3 Bg4 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.0–0 Nc5=) 8.Nf3 (8.Qf3 Re8 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bb2 Qb4+=) 8...Bf5 (8...Bg4 9.Be2 Nbd7 10.0–0 ab5 11.ab5 Ra1 12.Ba1 Qc7=) 9.d3 Qa5 10.Nd2 (10.Qd2 Qb4 11.Be2 ab5 12.Ba3 Ra4=) 10...Qb6 (10...Bg6 11.Be2 Nbd7 12.0–0 ab5=) 11.Be2 (11.Qf3 Bc8 12.a5 Qd8=) 11...Nc6 (11...ab5 12.ab5 Nbd7=) 12.0–0 ab5 (12...Nb4=) 13.ab5 Ra1 14.Ba1 Nb4 15.Nce4 Ne4 16.de4 Bd7 17.Qa4 Na6 18.Bc3 Ra8 19.Ra1 Qd8 20.f4 Nc7 21.Qd1 Ra1 22.Qa1 Ne6 23.g3 Bf6 24.Nf3 Bc8 25.fe5 de5 26.Be5 Be7 27.Kf2 Bf8 28.Bc3 Qe7 29.h4 Qc7 30.Qa8 Bd6 31.e5 Be7 32.Ne1 Qd7 33.Nd3 Bd8 34.Nf4 g5 35.hg5 Ng5 36.Bd3 Kf8 37.Ke1 Bc7 38.Qa7 b6 39.Nd5 Qd8?? (better is 39...Be5 40.Qb6 Bg3 41.Kd2 Qd6+–) 40.Qc7 (40.Nc7? Qd3 41.Qa8 Qc3 42.Kd1 Qd3 43.Kc1 Qc4 44.Kb2 Qe2 45.Ka1 Qd1 46.Kb2 Qd7–+) 40...Qc7 41.Nc7 Bb7 42.Nd5 Bd5 43.cd5 Ke8 44.Bf5 Kd8 45.Ke2 Kc7 46.d6 Kb8 (46...Kb7+–) 47.Ba5! Ne6?? (47...ba5 48.d7 Passed pawn) 48.Bb6 (48.Bb6 Kb7 49.Be6 fe6 50.Ba5+–) 1–0. Schmidt,Karl Heinz (2125) – Brito,Antonio (1925), Cape Verde – Germany, 2010.

6.e3 ab5 A) 7.cb5 Nbd7 (7...0–0 8.d4 e4 9.d5 Nbd7 10.Nc3 Nc5 11.a5 Re8 12.Qc2 Qd7+=; 7...c5 8.bc6 Nc6 9.d4 0–0 10.Bb5 Qc7 11.Ne2 Bg4 12.0–0 Rfc8+=; 7...Bg4 8.Be2 Be6 9.Nf3 0–0 10.0–0 c5 11.Ng5 Bf5 12.d3 h6+=) 8.d4 0–0 9.a5 c5 10.bc6 bc6 11.Bc3 Nd5 12.de5 Nc3–/+; B) 7.ab5 Ra1 8.Ba1 0–0 9.d4 Bf5 10.Ne2 Nbd7 11.Ng3 Bg6 12.Be2 c5=.

6.e3 Nbd7 A) 7.Be2 0–0 (7...e4 8.Nc3 Nc5 9.d4 ed3 10.Bd3 0–0 11.Nf3 Nd3 12.Qd3 ab5=) 8.d4 ab5 9.ab5 Ra1 10.Ba1 e4 11.Nh3 Nb6 12.Nf4 g5+=; B) 7.Nc3 0–0 (7...ab5 8.ab5 Ra1 9.Qa1 Nb6 10.Nf3 Bg4 11.d3 Bf3 12.gf3 0–0=) 8.Be2 ab5 9.ab5 Ra1 10.Qa1 Nc5 11.Nf3 e4 12.Nd4 d5+=; C) 7.d4 ed4 (7...ab5 8.ab5 Ra1 9.Ba1 0–0 10.Nd2 ed4 11.Bd4 Nc5 12.Ngf3 Bf5=; 7...0–0 8.Be2 Re8 9.Nf3 e4 10.Nfd2 ab5 11.ab5 Ra1 12.Ba1 d5=) 8.Bd4 0–0 9.Nf3 Nc5 10.Be2 ab5 11.cb5 Be6 12.Nbd2 Nd5=.

6.e3 Bf5 A) 7.Nc3 ab5 (7...0–0 8.Qf3 Qc8 9.Be2 ab5 10.ab5 Ra1 11.Ba1 c6 12.e4 Bg6=) 8.ab5 Ra1 9.Ba1 0–0 10.Qf3 Qc8 11.Be2 Bg4 12.Qg3 Bf5=; B) 7.d3 Ra7 (7...Qd7 8.Nd2 0–0 9.Ngf3 ab5 10.ab5 Ra1 11.Qa1 Qe6 12.Qa7 Qc8=; 7...Be6 8.d4 ed4 9.Bd4 ab5 10.cb5 c5 11.bc6 Nc6 12.Nf3 0–0=; 7...0–0 8.Nc3 Ra7 9.Nf3 Nbd7 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Re8=) 8.d4 e4 9.Nc3 0–0 10.Qc2 ab5 11.ab5 Ra1 12.Ba1 c6+=; C) 7.d4 Nbd7 (7...e4 8.Nc3 Nbd7 9.Nge2 0–0 10.Ng3 Bg6 11.ba6 Ra6 12.Qc2 Re8=) 8.Nc3 ab5 9.ab5 Ra1 10.Ba1 ed4 11.Qd4 Nc5 12.Nf3 Qd7+=; D) 7.Be2 ab5 (7...0–0 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.0–0 Nb6 12.Nc3 Be6=) 8.ab5 Ra1 9.Ba1 c5 10.d3 0–0 11.Nf3 Nbd7 12.Nc3 Qc7=.

6.Nf3 A) 6...0–0 A1) 7.Nc3 Bf5 (7...ab5 8.ab5 Ra1 9.Qa1 Nbd7 10.e3 e4 11.Nd4 Nc5 12.Be2 d5+=; 7...Nbd7 8.d4 ed4 9.Nd4 Nc5 10.e3 Re8 11.Be2 Qd7 12.0–0 ab5=; 7...Bg4 8.e4 Nbd7 9.h3 Bh5 10.d4 ab5 11.ab5 Ra1 12.Ba1 Qa8+=) 8.e3 Nbd7 9.d4 e4 10.Qc2 ab5 11.ab5 Ra1 12.Ba1 c6+=; A2) 7.Qc2 Nbd7 (7...ab5 8.ab5 Ra1 9.Ba1 Bg4 10.e4 c5 11.Be2 Qb6 12.h3 Bh5=; 7...Bg4 8.d4 ed4 9.Bd4 ab5 10.ab5 Ra1 11.Ba1 Re8 12.e3 Bf3+=; 7...Be6 8.d4 ed4 9.Nd4 Bd7 10.e4 ab5 11.ab5 Ra1 12.Ba1 Ng4=) 8.d4 ed4 9.Bd4 ab5 10.cb5 Nc5 11.e3 Nfe4 12.a5 Bf5+=; A3) 7.d4 ab5 (7...e4 8.Nfd2 d5 9.cd5 ab5 10.ab5 Ra1 11.Ba1 Qd5 12.Nc3 Qd4+=) 8.de5 de5 9.ab5 Ra1 10.Ba1 Qd1 11.Kd1 Ne4 12.Rg1 Rd8–/+; A4) 7.e3 e4 (7...ab5 8.ab5 Ra1 9.Ba1 e4 10.Nd4 Nbd7 11.Nc3 Nc5 12.d3 d5=) 8.Nd4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.Nc3 Nc5 12.d3 ed3+=; B) 6...ab5 7.cb5 (7.ab5 Ra1 8.Ba1 e4 9.Ng5 d5 10.cd5 Qd5 11.h4 h6 12.Nc3 Qf5–/+) 7...Nbd7 (7...Bf5 8.e3 0–0 9.Be2 c5 10.d3 Re8 11.0–0 Nbd7 12.Qd2 Qb6+=; 7...0–0 8.Nc3 e4 9.Nd4 d5 10.d3 Bb4 11.e3 c5 12.bc6 Nc6+=; 7...Bg4 8.h3 Bf5 9.Nc3 0–0 10.e3 c5 11.bc6 Nc6 12.d4 Qa5+=) 8.a5 0–0 9.Qc2 Re8 10.e4 d5 11.ed5 e4 12.Ne5 Nd5+=.

4.b5 b6

5.Nc3 Bb7 6.e3 Nbd7 7.d4 d5 (better is 7...a6!?=) 8.de5+/– Ne5 9.cd5 Bb4 10.Qb3 Qd6 11.a3 (11.0–0–0 Ned7+=) 11...Ba5 12.0–0–0 0–0 13.f3 (13.Qc2 Rfe8= (13...Nd5? 14.Nd5 Bd5 15.e4+–)) 13...Qc5 (13...a6 14.e4 ab5 15.Nb5+=) 14.e4 Qe3 (better is 14...a6!?=) 15.Kb1 Ned7 16.h4 (16.Qc2 Nc5+/–) 16...Nc5 (16...a6 17.Qc2 ab5 18.Nb5+/–) 17.Qc2+/– Nfd7 (17...a6!?+/–) 18.Nge2 Ne5 (18...a6!?+/–) 19.Bc1+– Qf2 20.Bf4 (20.Nd4!? Qc2 21.Kc2 a6+–) 20...Nc4+/– 21.Qa2 Nd6 22.Bg3 (22.e5!? Nf5+–) 22...Qe3+/– 23.Bf4 (23.Qc2 Nc4 24.Ka2+–) 23...Qf2+– 24.Bg3?? (24.e5!? Nf5+–) 24...Qe3+/– 25.Bf4 (better is 25.Qc2!?+/–) 25...Qf2= ˝–˝. Dlugolecki,Grzegorz – Prim,Miguel Angel Guille, Eclipse1 email, 2000.

5.d4 e4 6.Nc3 Bf5 7.e3 Be7 8.a4 d5 9.Qb3 0–0 10.h3 (10.cd5 a6+=) 10...Nbd7 (10...c6 11.cd5 cd5 12.Nge2=) 11.Be2 (better is 11.cd5 Bd6 12.Be2+=) 11...c5? (better is 11...dc4 12.Bc4 Rc8=) 12.bc6+– (12.Nd5?! Nd5 13.cd5 Rc8=) 12...Nb8 13.cd5 Bd6 (13...Bc8 14.Rc1+–) 14.Bb5 (14.g4!? Bg6+–) 14...a6 15.Bc4 a5 (15...Ra7 16.Nge2+–) 16.Nb5 Bb4 17.Ke2 Na6 18.Bc3 (18.d6 Ne8 19.d7 Nec7+–) 18...Bc3 19.Qc3 (better is 19.Nc3 Nb4 20.Rc1+–) 19...g5?? (better is 19...Nd5 20.Bd5 Qd5+=) 20.d6+– White intends c7 20...Ne8 21.c7 Qd7 22.Rc1 (better is 22.g4!? Nd6 23.Nd6 Qd6 24.Ba6 Ra6 25.gf5 Rc8+–) 22...Nd6 23.Nd6 (23.g4 Be6 24.Be6 Qe6+–) 23...Qd6 24.Bb5 (better is 24.Ba6!? Ra6 25.Qc6+–) 24...Rfc8 25.Ba6 Ra6 26.g4 (26.h4!?+/–) 26...Bd7 (better is 26...Ra7 27.Qd2 Bd7+=) 27.Qc4 (better is 27.Qc2=) 27...Ra7–/+ 28.Qb3 Rac7 29.Rc7 Rc7 30.Kd2 Qb4 31.Qb4 ab4 32.Ne2 Ba4 33.Rb1?? (better is 33.Rc1 Rc1 34.Kc1–/+) 33...b3?? (better is 33...Rc2 34.Ke1 b3–+) 34.Nc3+= b5 35.Ne4 Rc2 36.Kd3 b2 37.d5 (37.Ng5?! Rf2 38.Kc3 Rc2 39.Kb4 Re2=) 37...Bb3 (better is 37...Kf8!?+/–) 38.d6+– (38.Ng5 Rf2 39.Kc3 Bd5 40.Rb2 Rb2 41.Kb2 Bg2–+) 38...Kf8 39.Nd2?? (better is 39.Ng5 Rc5 40.Nh7 Kg7 41.Rb2 Bc4 42.Ke4+/–) 39...Ba4= 40.e4 b4 (40...f6 41.Nf3=) 41.f3 (41.Nc4 Rf2 42.Kd4 Ke8+=) 41...b3 (41...Rc3!? 42.Kd4 Rc2=) 42.e5+= Bb5 43.Ke3 Ke8 44.Ne4 Re2 (44...h6!?+=) 45.Kd4+/– h6 46.Nf6 (46.Kc3 Bc6 47.Rb2 Re3 48.Kd4 Rf3 49.Nf6 Kd8+=) 46...Kd8 47.Ne4 (47.Ng8 Bc6+/–) 47...Bc6 48.Kd3 Bb5 49.Kd4 (49.Kc3!? Bc6 50.Rb2 Re3 51.Kc4 Be4 52.fe4 Re4 53.Kd5=) 49...Rc2 50.Nc3?? (50.Nc5 Rc4 51.Kd5 Rc2=) 50...Be2?? (better is 50...Rd2 51.Kc5 Bd3–+) 51.Ne2= Re2 52.Kd3 Rc2 53.Kd4 Kd7 54.Kd3 (54.Kd5 Rd2 55.Ke4 Re2 56.Kd5 Rh2=) 54...Ke6 (54...f6!? 55.ef6 Kd6–+) 55.Kd4 f6 56.Kd3?? (better is 56.ef6 Kd6 57.Re1+=) 56...fe5–+ (56...Ke5?? 57.d7 Rc5 58.Re1 Kf4 59.d8Q+–) 57.Ke4 Kd6 58.Kf5 Rh2 (58...Kc5 59.Ke5 Kb4 60.f4–+) 59.Rd1 Kc7 (59...Kc5!? 60.h4–+) 60.Ke5 Rh3 61.Ke4 h5 (better is 61...Rh2–+) 62.gh5–/+ Rh5 63.Kf5 Rh3 64.Kg4 ˝–˝. Baer,Cy (1895) – Tortoza,Carlos, CiF, 2008.

5.e3 a6 6.d4 e4 7.Nc3 =.

5.e3 Bb7

6.d4 ed4 7.Bd4 a6 =.

6.Nf3 a6 7.d4 ed4 8.Bd4 =.

6.Nf3 Nbd7 7.Be2 a6 =.

6.Nf3 Nbd7 7.Be2 Be7 8.0–0 0–0 9.d4 e4 10.Nfd2 c5 11.d5 a6 12.a4 ab5 13.ab5 Ra1 14.Ba1 Re8 15.Qc2 Ne5 16.Ne4 Ne4+/– 17.Qe4 Bf6 18.Nd2 Ng6 19.Bf6 gf6 20.Qg4 Bc8 21.Qg3 Kf8 22.Ra1 Bd7?? 23.Qd6 Kg7 24.Ra6 Ne5 25.Qb6 Qb6 26.Rb6 Ra8 27.Ra6 Rb8 28.h3 f5 29.Nb3 (29.Nb3 Nc4 30.Bc4 Bb5 31.Bb5 Rb5 32.Nd2+–; 29.f4!? Nc4 30.Bc4 Bb5+–) 1–0. Istvanny (1645) – FischersFritze, internet, 2007.

6.Nf3 Nbd7 7.g3 Nc5 (better is 7...a6+=) 8.Bg2?? (better is 8.d4 Na4 9.Qa4 Bf3 10.Rg1=) 8...Nd3–+ 9.Ke2 (9.Kf1 Nb2 10.Qc2 Nd3 11.Qd3 e4–+) 9...e4 (9...Nb2 10.Qc2 e4 11.Qb2 ef3 12.Bf3–+) 10.Ng5 (10.Qc2 Nb2 11.Qb2 ef3 12.Bf3 Qc8–+) 10...Nb2 11.Qb3 (11.Qc2 Nd3 12.Nc3 Nf2–+) 11...Nd3 12.Nc3 Nc5 13.Qc2 Qe7 14.Rhf1 (14.f3–+) 14...h6 15.Nh3 Qe6 16.Na4 (16.Ke1 Qc4 17.Nf4 g5–+) 16...Qg4 17.Ke1 (17.f3 ef3 18.Rf3–+) 17...Nd3 (17...Nd3 18.Qd3 ed3–+) 0–1. Margareto,A – Palacios,R, Social Avinyo, 1996.

6.Nf3 Be7 7.Be2 Nbd7 8.a4 0–0 9.0–0 Re8 10.d3 (10.Nc3 a6=) 10...Nf8 (10...a6!?+=) 11.Nc3 Ne6 12.a5 ba5 13.Ra5 c6 14.Qa4 Nc5 (14...cb5 15.Nb5 (worse is 15.Rb5 Bc6 16.Qa2 Bb5 17.Nb5 a6+=; 15.Qb5? Rb8 16.Ra7 Bf3 17.Bf3 Rb5 18.Nb5 Nc5–+) 15...Nc5 16.Qa2=) 15.Qa2+= cb5 16.cb5 (16.Rb5 a6 17.Rb4+=) 16...Qb6? (16...Nd5 17.Ra7 Qb6 18.Rb7 Nc3 A) 19.Rb6?? Ne2 (19...Ra2 20.Bc3 Re2 21.Rc6+–) 20.Kh1 Ra2 21.Be5 de5 22.Ne5 f6–+; B) worse is 19.Bc3 Qb7 (worse is 19...Ra2 20.Rb6 Re2 21.Rc6+–; 19...Nb7?! 20.Qb1=) 20.Qb1 Na4+=; C) 19.Qa8 Ra8 20.Rb6 Ne2 21.Kh1 Nd3 22.Rc6+–) 17.d4 (17.Ra1!?+/–) 17...ed4+= 18.Nd4 d5 19.Ra1 a6 20.Qb1 (20.ba6 Na6 21.Bb5 Nb4+=) 20...ab5 21.Rb5 (21.Ra8 Ra8 22.Nf5 Bf8 23.Ra8 Ba8 24.Nb5 Bb7+=) 21...Qc7= 22.Ba3 Ba6 23.Rb2 Be2 24.Nde2 Qe5 25.Nd4 (25.g3 Nfe4 26.Ne4 de4=) 25...Bd6 (25...Ng4!? 26.g3 Ne4 27.Be7 Nc3 (27...Qe7?? 28.Ra8 Ra8 29.Nd5+–) 28.Ra8 Ra8=) 26.g3= h5 27.Ncb5 Bf8 28.Nc6 Qe6 29.Nbd4 Qg4 (29...Qe4 30.Bc5 Bc5 31.Qe4 de4 32.Rab1=) 30.Rb5 (30.Rc2 Nfe4+=) 30...Ne6 (30...Nce4 31.Bf8 Nc3 32.Ra8 Nb1 33.Re8 Ne8 34.Bb4=) 31.Bf8+= Nd4 32.Nd4 Ra1 33.Qa1 Kf8 34.Qb1 h4 35.Qf5 (35.Rb8 hg3 36.Re8 Ne8 37.Qb4 Kg8 38.hg3 Nf6=) 35...hg3 (35...Qf5 36.Nf5 h3 37.Nd4=) 36.hg3 Qd1 (36...Qf5 37.Nf5 g6 38.Nd4=) 37.Kg2+= Qd2 (37...Qc1 38.Qf4+=) 38.Qf4 (38.Rb7 Kg8+=) 38...Kg8 (38...Qd3 39.Qc7+=) 39.Rb8 (39.Nf5 Qc2+=) 39...Rb8 (39...Qd3!?=) 40.Qb8+/– Kh7 41.Qc7 Kg6 42.Qf4 (42.Nf3 Qb4 43.Nh4 Kh7 44.Qf7 Qe4 45.Nf3 Ng4+/–) 42...Qd3+= 43.Nf3 (43.Nc6 Qe4 44.Qe4 de4 45.Ne5 Kf5 46.Nf7 Ke6 47.Ng5 Ke5+=) 43...Qe4= 44.Qe4 de4 (44...Ne4 45.g4=) 45.Ne5+= Kf5 46.Nf7 Ng4 47.Nd6 Ke5 48.Nc4 Kd5 49.Nd2 Ke5 50.Nf1 Kf5 51.f3 (51.Kg1 Ne5+=) 51...ef3= 52.Kf3 Ne5 53.Ke2 Kg4 54.e4 Ng6 (54...Kh3 55.Kf2=) 55.Ke3 (55.Kf2 Kh3+=) 55...Ne5 56.Kd4 Nf3?? (better is 56...Ng6=) 57.Kd5+– Kg5 58.e5 Kg6 59.Ne3 Kf7? (59...Ng5+–) 60.e6 Ke8 61.Kd6 Ng5 (61...Nd4+–) 62.Nf5 White prepares e7 62...Ne4 63.Ke5 Ng5 (63...Nf2 64.Ng7 Ke7 65.Nf5 Ke8+–) 64.Ng7 Ke7 65.Nf5 Ke8 66.e7 (better is 66.Nd6 Kd8+–) 66...Kf7 (66...Kd7+–) 67.Kd6 Ne4 68.Kd7 Nf6 69.Kd8 Kg6 70.Nd6 1–0. Nikolic,Jovane (1670) – Hara,Aroldo Hiroiuqui (1985), 8th IRT LXSBC, 2011.

4.b5 c6

5.a4 Be7 6.d4 Nbd7 7.e3+=.

5.a4 g6 6.Nc3 Bg7 7.e4 0–0 8.Nf3 Bg4 9.Be2 Qc7 10.0–0 d5 11.d3 (11.cd5 cd5 12.ed5 Re8+=) 11...Nbd7 (11...d4 12.Nb1 Bd7 13.Qd2=) 12.h3 (12.cd5 cd5 13.ed5 Rfe8+=) 12...Bf3= 13.Bf3 d4 14.Ne2 c5 15.Ng3 b6 16.Qe2 Qd6 17.Bc1 Qe6 18.Bd2 Ne8 (18...a5 19.Rfe1=) 19.Bg4+= f5? (19...Qd6 20.Bd7 Qd7 21.a5+=) 20.Bf3?? (better is 20.ef5 Qe7 21.fg6 hg6 22.Qe4+–) 20...Rf7?? (20...f4 21.Nf5 a5= (21...gf5? 22.ef5 Rf5 23.Bd5 Qd5 24.cd5+–)) 21.ef5+– gf5 22.Ba8 f4 (22...Nc7 23.Bc6+–) 23.Bd5 Qg6 24.Bf7 (24.Bf4 a6+–) 24...Kf7 25.Ne4 Bh6 (25...Ndf6 26.Nf6 Qf6 27.a5+–) 26.Qf3 Ndf6 27.Rfe1 Ke6 (27...Bg7 28.Nf6 Qf6 29.Qb7 Kf8 30.a5+–) 28.a5 Nd7 (28...Ne4 29.Re4 Nd6 30.Re2+–) 29.ab6 ab6 30.Nc5! bc5 (30...bc5 31.Qd5 Double attack; 30...Nc5 31.Qd5 Double attack) 31.Ra6 Nd6 32.Qd5 Ke7 33.Re5 Ne5 34.Qe5 Kd7 35.Ra7 Kc8 36.Qc5 Kd8 37.Qc7 1–0. Baer,Cy (1895) – Goebel,Martin (1805), RSS7E basic–1, 2008.

5.Qa4 A) 5...Be7 6.Nf3 (6.e3 cb5 7.cb5 Be6 8.d4 Nbd7 9.Nd2 e4+=; 6.Nc3 cb5 7.cb5 Nbd7 8.Nf3 d5 9.e3 Bd6+=; 6.d4 e4 7.Nc3 0–0 8.e3 cb5 9.Qb5 Nc6+=; 6.a3 0–0 7.d4 ed4 8.Bd4 d5 9.Nf3 c5–/+; 6.Na3 0–0 7.Rd1 c5 8.e3 Nbd7 9.d4 ed4+=; 6.d3 0–0 7.e3 cb5 8.Qb5 Nc6 9.Nf3 Rb8+=) 6...0–0 7.Nc3 e4 8.Nd4 c5 9.Nc2 Nbd7=; B) 5...Be6 6.e3 (6.d4 ed4 7.Bd4 d5 8.cd5 Nd5 9.Nf3 cb5+=; 6.Nf3 Be7 7.Nc3 0–0 8.e4 Nbd7 9.d4 Qb6+=; 6.Nc3 Nfd7 7.e4 Nb6 8.Qb3 N8d7 9.a4 Nc5+=; 6.d3 Nfd7 7.Nf3 Nb6 8.Qd1 Be7 9.e3 0–0+=) 6...Be7 7.d4 ed4 8.Bd4 c5 9.Bb2 0–0+=; C) 5...Qb6 6.e3 (6.Nf3 Be7 7.Qc2 0–0 8.a4 a6 9.a5 Qd8+=; 6.Nc3 d5 7.e3 d4 8.Nd1 c5 9.d3 Bd6+=) 6...Be7 7.d4 e4 8.Nc3 0–0 9.Rb1 Bd7=; D) 5...Bd7 6.Nf3 (6.e3 Be7 7.d4 e4 8.Nc3 0–0 9.d5 Qb6=; 6.d4 e4 7.e3 Be7 8.Nc3 0–0 9.Be2 Qb6+=; 6.Nc3 Qb6 7.e4 Ng4 8.Nh3 Be7 9.Be2 0–0=; 6.a3 Be7 7.d4 ed4 8.Bd4 0–0 9.e3 d5+=; 6.Na3 Be7 7.d4 e4 8.d5 cd5 9.cd5 Na6–/+; 6.Bc3 Ne4 7.Nf3 Nc5 8.Qc2 cb5 9.cb5 Bb5+=) 6...Be7 7.Nc3 e4 8.Nd4 0–0 9.Qc2 cb5=; E) 5...Bf5 6.d4 (6.e3 Be7 7.Ne2 Nbd7 8.d4 Nb6 9.Qb3 cb5+=; 6.Nf3 Nbd7 7.d4 Nb6 8.Qb3 e4 9.Nfd2 Be7+=; 6.d3 Be7 7.e4 Bd7 8.Nf3 Qb6 9.Nbd2 cb5+=; 6.Nc3 d5 7.cd5 cd5 8.d4 e4 9.Rc1 Nbd7+=; 6.a3 Nbd7 7.d4 a6 8.bc6 bc6 9.Nd2 Qb6+=; 6.bc6 bc6 7.d4 Qb6 8.Qb3 Nbd7 9.Nd2 ed4+=) 6...Nbd7 7.Nd2 c5 8.e3 Be7 9.de5 de5+=; F) 5...Qc7 6.Nf3 (6.e3 Be7 7.d4 0–0 8.Nd2 Bf5 9.Ne2 Rc8+=; 6.d4 Be7 7.e3 0–0 8.Nd2 Bf5 9.Rd1 Nbd7+=; 6.Na3 Be7 7.d4 0–0 8.e3 e4 9.Ne2 Nbd7+=; 6.Nc3 Nbd7 7.Nf3 Nc5 8.Qc2 Bg4 9.Rd1 e4+=; 6.a3 cb5 7.cb5 Nbd7 8.d4 Nb6 9.Qa5 Bf5+=; 6.d3 Be7 7.d4 0–0 8.Nd2 Bf5 9.e3 a6+=) 6...Nbd7 7.d4 Be7 8.Nc3 0–0 9.e4 ed4+=; G) 5...cb5 6.Qb5 (6.cb5 Nbd7 7.d4 Nb6 8.Qa5 e4 9.Nd2 Be6+=) 6...Nc6 7.Nf3 Bd7 8.Qb3 Rc8 9.d3 Na5+=.

5.Nc3 A) 5...Be7 6.d4 (6.Nf3 Bf5 7.d3 Bg4 8.d4 e4 9.h3 Bf5+=; 6.e4 0–0 7.Nf3 Nbd7 8.Be2 Nc5 9.Qc2 Bg4=; 6.e3 0–0 7.d4 Nbd7 8.Nf3 cb5 9.Nb5 Qb6=; 6.Rc1 0–0 7.e4 Qa5 8.Be2 cb5 9.cb5 a6+=) 6...ed4 7.Qd4 Qa5 8.e3 Be6 9.Nf3 a6=; B) 5...Be6 6.e4 (6.bc6 bc6 7.e3 Nbd7 8.Rb1 Rb8 9.Nf3 Bf5+=; 6.e3 Be7 7.d4 0–0 8.bc6 bc6 9.Nf3 Nbd7+=; 6.Qa4 Nfd7 7.e4 Nb6 8.Qb3 N8d7 9.a4 Nc5+=) 6...cb5 7.cb5 d5 8.ed5 Nd5 9.Qh5 Nb4=; C) 5...d5 6.cd5 (6.bc6 Nc6 7.cd5 Nd5 8.Nf3 Be6 9.Nd5 Qd5+=; 6.e3 d4 7.Nce2 c5 8.f4 Nbd7 9.Qb3 de3+=; 6.d4 Bb4 7.Qb3 Ba5 8.Rd1 ed4 9.Rd4 c5–/+) 6...cd5 7.e3 Bd6 8.Nf3 0–0 9.Be2 Nbd7+=; D) 5...Bg4 6.Nf3 (6.d4 Qa5 7.Qd2 ed4 8.Qd4 Qb4 9.Qd2 Qc4+=; 6.f3 Be6 7.e4 Nbd7 8.d4 ed4 9.Qd4 Nb6+=; 6.h3 Be6 7.e4 cb5 8.cb5 d5 9.ed5 Nd5=; 6.Rc1 Be7 7.Nf3 0–0 8.e4 Nbd7 9.Be2 Nc5=; 6.Rb1 Bf5 7.d3 cb5 8.e4 Bg4 9.f3 Be6=; 6.a3 Be7 7.d4 0–0 8.h3 Bf5 9.e3 Qa5+=) 6...Be7 7.e4 cb5 8.cb5 d5 9.ed5 e4=; E) 5...a6 6.bc6 (6.d4 ab5 7.de5 de5 8.Qd8 Kd8 9.cb5 Ba3=; 6.e4 ab5 7.cb5 d5 8.ed5 cd5 9.d4 e4+=; 6.Nf3 ab5 7.cb5 cb5 8.a3 Nc6 9.e4 b4=; 6.e3 ab5 7.cb5 d5 8.d4 e4 9.Qb3 Bd6+=; 6.ba6 Na6 7.Nf3 Be7 8.e4 Nc5 9.Qc2 Qb6+=) 6...bc6 7.Nf3 Bf5 8.d3 Nbd7 9.e4 Bg4=; F) 5...Bf5 6.e3 (6.d4 Nbd7 7.e3 Be7 8.Qf3 Bg4 9.Qg3 cb5+=; 6.Nf3 Be7 7.d3 Bg4 8.d4 e4 9.h3 Bf5+=; 6.d3 cb5 7.cb5 d5 8.e4 Be6 9.ed5 Nd5+=; 6.f3 d5 7.bc6 bc6 8.cd5 cd5 9.e4 de4=; 6.Rc1 Be7 7.d4 0–0 8.e3 a6 9.bc6 bc6+=) 6...Be7 7.d4 0–0 8.Nge2 Nbd7 9.Ng3 Bg6=; G) 5...cb5 6.cb5 (6.Nb5 Nc6 7.e3 a6 8.Nc3 d5 9.cd5 Nd5+=) 6...d5 7.e3 Bd6 8.Rc1 0–0 9.Nf3 Be6+=.

5.d4 Qa5 6.Qd2 (6.Bc3 Qc7 7.e3 Be7 8.Ne2 0–0 9.Nd2 Bd7+=) 6...Qc7 7.Nc3 ed4 8.Qd4 Be6 9.Nf3 Nbd7=.

5.d4 cb5 6.cb5 Qa5 7.Nc3 Qb4 8.Qd2 Qd4 9.Qd4 ed4=.

5.d4 Qc7 6.e3 (6.Nc3 a6 7.e3 Be7 8.Bd3 ed4 9.ed4 ab5=; 6.Nd2 e4 7.d5 Be7 8.dc6 bc6 9.Rb1 e3+=; 6.a3 Be7 7.Nc3 0–0 8.e4 ed4 9.Qd4 Nbd7=; 6.Nf3 e4 7.Nfd2 cb5 8.cb5 e3 9.fe3 d5=; 6.h3 Be7 7.Nc3 0–0 8.e4 Qa5 9.Qd2 ed4+=) 6...Be7 7.Nd2 e4 8.f3 Qa5 9.Qc2 ef3=.

5.d4 ed4 6.Bd4 d5 7.e3 Be6 8.cd5 Nd5 9.Nd2 a6=.

5.d4 Nbd7 6.Nc3 (6.e3 Be7 7.Nd2 0–0 8.Qf3 Qa5 9.bc6 bc6+=; 6.Nd2 cb5 7.cb5 e4 8.e3 d5 9.Qb3 a5=; 6.Qb3 Be7 7.Nd2 0–0 8.e4 ed4 9.Bd4 Nc5+=; 6.Bc3 cb5 7.cb5 e4 8.Bd2 d5 9.Nc3 Bd6+=; 6.Nf3 e4 7.Nfd2 cb5 8.cb5 d5 9.e3 Nb6=) 6...ed4 7.Qd4 Nc5 8.Nf3 Bf5 9.Qf4 Bg6=.

5.d4 e4 6.d5 (6.bc6 Nc6 7.d5 Ne5 8.Nd2 Be7 9.Qc2 0–0+=; 6.Nc3 d5 7.bc6 Nc6 8.e3 Be6 9.c5 Be7+=; 6.e3 cb5 7.cb5 d5 8.Nd2 Bd6 9.Qb3 Qe7+=; 6.Nd2 cb5 7.cb5 d5 8.Qb3 Bg4 9.e3 Nbd7+=; 6.Qa4 Be7 7.bc6 bc6 8.Nd2 Qc7 9.Qc2 e3+=; 6.Qb3 Be7 7.Nc3 0–0 8.e3 cb5 9.Qb5 Nc6+=) 6...Be7 7.Nc3 0–0 8.e3 Bf5 9.Nge2 a6=.

5.e3 a6 6.d4 (6.bc6 Nc6 7.Nf3 e4 8.Nd4 d5 9.Nc6 bc6+=; 6.Qa4 Bf5 7.Ne2 Nbd7 8.bc6 Nc5 9.c7 Na4+=; 6.Nf3 ab5 7.cb5 Be7 8.bc6 Nc6 9.Bb5 0–0+=; 6.ba6 Na6 7.d4 e4 8.Nc3 Be7 9.f3 d5+=; 6.Nc3 ab5 7.cb5 d5 8.d4 e4 9.Nge2 Bd6+=; 6.a3 ab5 7.cb5 Be6 8.Nf3 Be7 9.Be2 0–0+=) 6...ed4 7.Bd4 ab5 8.cb5 c5 9.Bc3 Be6+=.

5.e3 c5 6.Nc3 (6.d4 ed4 7.ed4 Qe7 8.Qe2 Bg4 9.Qe7 Be7=) 6...Be6 (6...d5 7.cd5 Nd5 8.Qh5 Nc3 9.Qe5 Be6 10.dc3+=) 7.Nf3 (7.d4 Nbd7=) 7...Bf5 (7...e4 8.Ng5 d5 9.Ne6 fe6 10.d3+=) 8.h3 (8.d4 cd4 9.ed4 e4=) 8...Be7 9.Be2 (9.g4 Bg6=) 9...h6 (9...0–0 10.d4=) 10.d3 (10.0–0 e4 11.Ne1 0–0=) 10...a6 (10...0–0 11.0–0=) 11.e4 Bd7 12.a4 (12.0–0 ab5 13.Nb5 0–0=) 12...Qa5 (12...ab5 13.ab5 Ra1 14.Qa1=) 13.Qb3 (13.0–0 0–0=) 13...Qb4 (13...0–0 14.0–0=) 14.Qb4 cb4 15.Nd5 Bd8 (15...Nd5 16.cd5 ab5 17.a5+=) 16.0–0 (16.d4 Nd5 17.cd5 ab5 18.Bb5 Bb5 19.ab5 Ra1 20.Ba1 f6+/–) 16...a5 (16...Nd5 17.ed5 ab5 18.ab5 Ra1 19.Ra1+=) 17.Rac1 (17.d4 Ne4 18.de5 de5 19.Be5 0–0+/–) 17...Be6 (17...Nd5 18.cd5 Bg5 19.Rc7+/–) 18.Nf6 (18.d4 Ne4 19.de5 de5 20.Be5 0–0+/–) 18...Bf6+= 19.d4 White prepares the advance c5 19...ed4 20.Nd4 Bd4 (20...Nd7 21.Rfd1+/–) 21.Bd4 0–0 22.f4 f6 (22...Re8 23.f5 Bd7 24.Rf4+=) 23.c5 (23.f5 Bf7+/–) 23...dc5+= 24.Rc5 Rf7 (24...Rd8 25.Rd1+=) 25.f5+/– Bb3 26.Rb1 Ba2 27.Rb2 Rd7 (27...Nd7 28.Rc1 b3 29.Rc7+–) 28.Rc8 (28.Ra2 Rd4 29.Rc8 Kf7 30.Bc4 Ke7+–) 28...Kh7 29.Be3 (29.Ra2 Rd4 30.Bh5 g5 31.fg6 Kg7+–) 29...b3 30.Bf4 Rd4 31.Bc4 (31.Bh5 g5 32.fg6 Kg7 33.Bb8 b6+–) 31...g6 (31...Rc4 32.Rc4 Nd7 33.Rc7+–) 32.Bd5 (32.fg6 Kg6 33.Kf2 Nd7 34.Ra8 Rc4 35.Ra5 Nc5+=) 32...Rd1 (32...Ra4 33.Bb8 gf5 34.ef5 h5 35.Bb7 Rb8 36.Rb8 Rb4+–) 33.Kf2 Rb1 34.Rb1 (34.Bb8 Rb2 35.Kf3 Rc2 36.fg6 Kg6 37.Rg8 Kh7=) 34...Bb1 35.fg6 (worse is 35.Bb8 gf5 36.Bb7 Rb8 37.Rb8 fe4+–; worse is 35.Rb8 Rb8 36.Bb8 gf5 37.Bb3 fe4+–) 35...Kg6 36.Bb3 (better is 36.Bb7!? Ra7 37.Rg8 Kh5+–) 36...Be4 37.Rb8 Rb8 38.Bb8 h5 39.Bc7 f5 (39...h4 40.Ba5 Kf5 41.Bc3+–) 40.Ba5 f4 41.Bd8 (better is 41.Bc3 Kf5+–) 41...Kg7 (41...Kf5 42.a5 Bd3 43.Bd5+–) 42.a5 (42.Bc7 h4+–) 42...Bd3 43.b6 (better is 43.Kf3 Bb5 44.Kf4 Bd3+–) 43...Ba6 (43...Kg6 44.Bd5 Ba6 45.Be4 Kf7 46.Bc7+–) 44.Bd1 (44.Bc7!? Bd3+–) 44...Kg6 45.Be2 (better is 45.Bf3!? Kh6+–) 45...Be2 46.Ke2 Kf5 47.a6 ba6 (47...f3 48.gf3 ba6+–) 48.b7 (48.b7 f3 49.gf3+–) 1–0. Hoelldorfer,August – Ambros,Hans, 5sen.BayEM Schney, 1993.

5.e3 Bd7 6.d4 e4 7.bc6 Nc6 8.Nd2 Rc8 9.d5 Ne5=.

5.e3 Nbd7 6.Nf3 (6.Nc3 cb5 7.cb5 d5 8.Nf3 Bd6 9.Be2 0–0=; 6.d4 Be7 7.Nd2 0–0 8.Be2 a6 9.bc6 bc6+=; 6.Be2 cb5 7.cb5 d5 8.Nf3 Bd6 9.0–0 Qc7=; 6.a4 Be7 7.d4 0–0 8.Be2 c5 9.Nf3 cd4=; 6.Ne2 cb5 7.cb5 d5 8.d4 e4 9.Nd2 Bd6+=; 6.bc6 bc6 7.Nc3 Rb8 8.Rb1 Be7 9.Nf3 0–0+=) 6...a6 7.bc6 bc6 8.Nc3 Rb8 9.Rb1 e4=.

5.e3 Be6 6.Nf3 (6.d4 Nbd7 7.Nc3 ed4 8.Qd4 Ne5 9.Rd1 c5+=; 6.Be2 Be7 7.Nf3 0–0 8.Nc3 cb5 9.cb5 a6+=; 6.Nc3 Be7 7.d4 0–0 8.bc6 bc6 9.Nf3 Nbd7+=; 6.Qb3 Nbd7 7.d4 a6 8.a4 Be7 9.Nf3 e4+=; 6.a3 cb5 7.cb5 Nbd7 8.Nf3 Rc8 9.Be2 Be7+=; 6.Qa4 Be7 7.d4 ed4 8.Bd4 c5 9.Bb2 Nbd7+=) 6...Be7 7.Be2 cb5 8.cb5 Nbd7 9.Nc3 d5=.

5.e3 Be7 6.Be2 (6.Nc3 0–0 7.d4 Nbd7 8.Nf3 cb5 9.Nb5 a6=; 6.d4 e4 7.d5 Qb6 8.Nc3 0–0 9.a4 Qa5=; 6.Qc2 cb5 7.cb5 Be6 8.Nf3 Nbd7 9.Ng5 Bg4+=; 6.f3 Be6 7.d4 cb5 8.cb5 Nd5 9.e4 Ne3+=; 6.Ne2 Be6 7.Qb3 a6 8.bc6 b5 9.Ng3 Nc6–/+; 6.a3 0–0 7.d4 e4 8.d5 a6 9.bc6 bc6+=) 6...cb5 7.cb5 Nbd7 8.Nf3 0–0 9.0–0 a6=.

5.e3 Bf5 6.d4 (6.Nc3 Be7 7.d4 0–0 8.Nge2 Nbd7 9.Ng3 Bg6=; 6.Nf3 Be7 7.Be2 0–0 8.0–0 Nbd7 9.a4 a6=; 6.a3 Nbd7 7.d4 Be7 8.Nd2 a6 9.Qf3 Bg4+=; 6.Ne2 Be6 7.Ng3 Nbd7 8.d4 Be7 9.Be2 0–0=; 6.Be2 cb5 7.cb5 Nbd7 8.Nf3 Rc8 9.0–0 Bc2=; 6.Bc3 cb5 7.cb5 Nbd7 8.Nf3 Rc8 9.Be2 Be7+=) 6...e4 7.d5 cb5 8.cb5 Nbd7 9.Nc3 Rc8=.

5.Nf3 A) 5...e4 6.Nd4 d5 7.cd5 Qd5 8.e3 c5 9.Nb3 Bg4=; B) 5...Be6 6.e3 (6.Qa4 Be7 7.Nc3 0–0 8.e4 Nbd7 9.d4 Qb6+=; 6.Qb3 Nbd7 7.d4 cb5 8.Qb5 a6 9.Qb3 b5–/+; 6.d4 e4 7.Nfd2 d5 8.cd5 cd5 9.e3 Bd6+=) 6...Be7 7.Be2 0–0 8.0–0 cb5 9.cb5 Nbd7=; C) 5...a6 6.bc6 (6.Nc3 ab5 7.cb5 e4 8.Nd4 c5 9.Nb3 d5–/+; 6.Qa4 Be7 7.Nc3 Bf5 8.d4 e4 9.bc6 bc6+=; 6.ba6 Na6 7.d4 e4 8.Nfd2 e3 9.fe3 d5+=; 6.a4 Be6 7.d4 e4 8.Nfd2 d5 9.ba6 Na6+=) 6...bc6 7.d4 e4 8.Nfd2 e3 9.fe3 Qe7=; D) 5...Bg4 6.bc6 (6.h3 Be6 7.e3 Be7 8.Nc3 0–0 9.d4 e4+=; 6.a3 Be7 7.Nc3 0–0 8.h3 Bf3 9.gf3 Nbd7+=; 6.Qb3 Nbd7 7.d4 e4 8.h3 Bf5 9.Nfd2 d5+=; 6.Nc3 Nbd7 7.e4 Nc5 8.h3 Bh5 9.d3 Be7=; 6.Bc3 cb5 7.cb5 Nbd7 8.h3 Bf5 9.d3 Qb6+=; 6.d4 e4 7.Nfd2 cb5 8.cb5 d5 9.Nc3 Nbd7+=) 6...Nc6 7.Nc3 d5 8.cd5 Bf3 9.ef3 Nd5=; E) 5...Nbd7 6.Qc2 (6.Nc3 cb5 7.cb5 d5 8.e3 Bd6 9.Be2 0–0=; 6.bc6 bc6 7.Nc3 Qa5 8.Rb1 Rb8 9.Qc2 Nb6+=; 6.e3 a6 7.bc6 bc6 8.Nc3 Rb8 9.Rb1 Qa5=; 6.a3 cb5 7.cb5 Be7 8.Nc3 d5 9.e3 Bd6=; 6.Na3 Nc5 7.Nb1 Nce4 8.d3 Qa5 9.Nbd2 Nc5+=; 6.d4 e4 7.Nfd2 cb5 8.cb5 d5 9.e3 Bd6=) 6...Be7 7.e4 Nc5 8.Nc3 Qa5 9.Be2 a6=; F) 5...Bf5 6.e3 (6.Nc3 Be7 7.d3 Bg4 8.d4 e4 9.h3 Bf5+=; 6.d3 cb5 7.cb5 Qa5 8.Qd2 Qb5 9.Nc3 Qa5–/+; 6.Qb3 Nbd7 7.d4 e4 8.Nfd2 a6 9.bc6 bc6+=; 6.d4 e4 7.Nfd2 Be7 8.e3 0–0 9.Be2 d5+=; 6.a3 Be7 7.Nc3 0–0 8.d3 Bg4 9.e3 a6+=; 6.bc6 Nc6 7.d3 Bg4 8.Nbd2 Be7 9.e3 0–0+=) 6...Be7 7.Be2 0–0 8.0–0 cb5 9.cb5 Qa5=; G) 5...Be7 6.Qc2 (6.Nc3 Bf5 7.d3 Bg4 8.d4 e4 9.h3 Bf5+=; 6.bc6 Nc6 7.Nc3 Bf5 8.d3 d5 9.cd5 Nd5+=; 6.a3 0–0 7.Nc3 Bg4 8.h3 Bf3 9.gf3 Nbd7+=) 6...Bg4 7.d4 e4 8.bc6 Nc6 9.Nfd2 d5+=.

5.a4 a6

6.e3 ab5 7.ab5 Ra1 8.Ba1 cb5 9.cb5 Nbd7 10.Nf3 d5 (better is 10...Be7!?=) 11.Ne5+/– Nb6 12.Be2 Bf5 13.0–0 g6 14.Ng4 Bg7 15.Nf6 Bf6 16.Bf6 Qf6 17.d4 0–0 18.Qb3 Qg5 19.Rc1 Re8 20.Bf3 Be4 21.Qd1 Nc4 22.Be4 Re4 23.Rc3 Rg4 24.g3 h5 25.Nd2 h4 (25...Nd2 26.Qd2 Re4 27.Qa2+–) 26.Nf3 (better is 26.Nc4!? hg3 27.hg3 dc4 28.Qf3+–) 26...Qh5 27.Qf1 g5 28.Ne5 Ne5 29.Rc8 Kg7 30.de5 d4 (30...Rb4 31.e6! fe6 32.Qa1 d4 33.ed4+–) 31.Qa1 hg3 32.hg3 Qh4? (32...Rh4 33.gh4 Qg4 34.Kf1 Qc8 35.Qd4 Qh3 36.Ke2 Qh4 37.Qh4 gh4 38.f4+–) 33.Kg2 Qh7 (33...Rg3 34.fg3 Qe4 35.Kh2 Qh7 36.Kg1+–) 34.f3 (34.Qa3 de3 35.Qf8 Kg6 36.Qd6 Kh5+/–) 34...Re4 35.fe4 Qe4 36.Kf1?? (better is 36.Kh2 Qh7 37.Kg1+–) 36...Qh1–+ 37.Ke2 Qa1 38.ed4 Qd4 (38...Qd4 39.e6 fe6–+) 0–1. Pruvost,Alain (1620) – Gosset,Hugo, 9th Open, La Fere FRA, 2010.

6.e3 ab5 7.ab5 Ra1 8.Ba1 cb5 9.cb5 Be7 =+.

6.e3 ab5 7.cb5 cb5 (7...Be7 8.d4 e4 9.bc6 Nc6 10.d5 Qa5 11.Nc3=+) 8.Bb5= Bd7 9.Nf3 (9.Ne2 Bb5 10.ab5 Ra1 11.Ba1 Nbd7=) 9...Bb5 (9...Nc6 10.0–0=) 10.ab5 Ra1 11.Ba1 Qa5 (11...Qd7 12.Nc3=) 12.Nc3 Be7 (12...Nbd7 13.0–0=) 13.0–0+= 0–0 14.Qb3 Nbd7 15.Bb2 Nc5= 16.Qc2 h6 17.Ra1 Qc7 18.h3 b6 19.Rc1 d5 20.Ne2 Bd6 21.Ng3 Rc8 22.Nf5+= Nfe4? 23.Nd6+– Qd6 24.Be5 Qd7 25.d4 f6 26.dc5 fe5 27.c6+– Qd6 28.Qb2 Nc5? 29.Qe5 Qd8 30.Rd1 Kh8 31.Rd5 Qf8 32.Nh4 Kh7 33.Qh5 Qf6 34.Rf5 Qe6 35.Qf7 Qd6 36.Qd5 Qe7 37.Nf3 Rd8 38.Qe5 Qa7 39.Nd4 Nd3 40.Qe4 Qa1 41.Kh2 (41.Kh2 Nf2 42.Rf2 Kh8 43.c7+–) 1–0. mic (2100) – nhathuy (2100), net–chess.com, 2008.

5.a4 Be6

6.Qb3 Nbd7 7.d4 cb5 8.ab5 d5 9.e3 dc4+=.

6.Qc2 Be7 7.e4 0–0 8.Nf3 Qa5 9.Bc3 Qc7=.

6.d3 a6 A) 7.e3 A1) 7...Be7 8.Nf3 (8.Nc3 d5 9.Nf3 d4 10.Nb1 de3 11.fe3 ab5 12.ab5 Ra1 13.Ba1+=; 8.d4 Nbd7 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 e4 12.Nfd2 cb5 13.d5+=; 8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Qa5 12.Nc3 0–0 13.Bb2+=) 8...0–0 9.Nc3 Qa5 10.Be2 Qb4 11.Qd2 Re8 12.0–0 Bg4 13.Rfb1=; A2) 7...Nbd7 8.Nc3 (8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Be7 12.Be2 0–0 13.Nc3+=; 8.d4 Be7 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 e4 12.Nfd2 cb5 13.d5+=; 8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Qa5 12.Nc3 Nc5 13.Bb2+=) 8...ab5 9.ab5 Ra1 10.Qa1 d5 11.Nf3 dc4 12.dc4 Bg4 13.Be2+=; A3) 7...Qc7 8.Nc3 (8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Be7 12.d4 e4 13.Nfd2+=; 8.d4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 e4 12.Ne2 d5 13.Qc1+=; 8.Nd2 Be7 9.d4 ab5 10.de5 de5 11.ab5 Ra1 12.Qa1 Nfd7 13.Ngf3+=) 8...ab5 9.ab5 Ra1 10.Ba1 d5 11.Nf3 dc4 12.dc4 Bb4 13.Qa4=; A4) 7...ab5 8.ab5 Ra1 9.Ba1 Be7 10.d4 Nbd7 11.Nf3 e4 12.Nfd2 cb5 13.d5+=; B) 7.Nf3 B1) 7...Be7 8.Nc3 (8.Ng5 Bd7 9.Nc3 d5 10.e3 d4 11.ed4 ed4 12.Nce4 ab5 13.ab5+=; 8.bc6 Nc6 9.e3 0–0 10.Be2 d5 11.0–0 Qc7 12.Nbd2 dc4 13.Nc4+=; 8.e4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 0–0 12.Nbd2 Qa5 13.Be2+=) 8...0–0 9.e3 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.Be2 d5 13.0–0=; B2) 7...Nbd7 8.Nc3 (8.Ng5 Bg4 9.h3 Bh5 10.g4 Bg6 11.Nf3 ab5 12.g5 Nh5 13.cb5+=) 8...Be7 9.Ng5 Bg4 10.h3 Bh5 11.g4 Bg6 12.Nf3 ab5 13.ab5+=; B3) 7...Qc7 8.bc6 (8.e3 ab5 9.ab5 Ra1 10.Ba1 Be7 11.Nc3 0–0 12.Be2 d5 13.0–0+=; 8.Ng5 Bd7 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 d5 12.e3 Bb4 13.bc6+=; 8.Nc3 Be7 9.e3 0–0 10.Be2 ab5 11.ab5 Nbd7 12.0–0 Ra1 13.Qa1=) 8...Nc6 9.e4 Be7 10.Be2 0–0 11.0–0 Ra7 12.Nc3 Rc8 13.Nd5=; B4) 7...ab5 8.ab5 (8.cb5 cb5 9.ab5 Ra1 10.Ba1 Qa5 11.Bc3 Qb5 12.e3 Qb6 13.Be2–/+) 8...Ra1 9.Ba1 cb5 10.cb5 Qa5 11.Bc3 Qb5 12.e3 Qc6 13.Ng5–/+; C) 7.Nd2 C1) 7...Be7 8.e4 (8.bc6 Nc6 9.Ngf3 Rc8 10.e4 0–0 11.Be2 Nh5 12.0–0 Nf4 13.d4+=) 8...Qa5 9.Ne2 0–0 10.Bc3 Qc7 11.d4 Nbd7 12.d5 Nc5 13.Ng3+=; C2) 7...ab5 8.ab5 Ra1 9.Qa1 cb5 10.cb5 Nbd7 11.Ngf3 Bg4 12.e3 Be7 13.Be2=; C3) 7...Nbd7 8.d4 (8.bc6 bc6 9.Ngf3 Rb8 10.Rb1 Qa5 11.Ng5 Nc5 12.Ba3 Rb1 13.Qb1+=; 8.e3 ab5 9.ab5 Ra1 10.Qa1 cb5 11.cb5 Be7 12.d4 e4 13.Ne2+=; 8.Ngf3 ab5 9.ab5 cb5 10.Ra8 Qa8 11.Ng5 Qa4 12.Ne6 fe6 13.e3+=) 8...ab5 9.ab5 Ra1 10.Qa1 cb5 11.cb5 e4 12.e3 Be7 13.Ne2+=; D) 7.bc6 D1) 7...Nc6 8.e4 (8.Nf3 Be7 9.e4 0–0 10.Be2 Qb6 11.Bc3 Qc7 12.Nbd2 Nh5 13.Ne5=; 8.Nd2 d5 9.Ngf3 d4 10.e4 de3 11.fe3 Qb6 12.Be5 Ne5 13.Ne5+=) 8...Be7 9.Nf3 0–0 10.Be2 Qb6 11.Qd2 Na5 12.Bc3 Bd8 13.Qd1=; D2) 7...bc6 8.e3 (8.Nd2 Be7 9.Rb1 Nbd7 10.g3 0–0 11.Bg2 Qc7 12.Ngf3 Rab8 13.Ng5+=; 8.Nf3 Be7 9.Nbd2 Nbd7 10.Qc2 Rb8 11.d4 e4 12.Ng5 Bf5 13.Rb1+=; 8.d4 Nbd7 9.Nd2 Qb6 10.Ra2 ed4 11.a5 Qa7 12.Ngf3 c5 13.Ng5–/+) 8...Nbd7 9.Nd2 Rb8 10.Bc3 Be7 11.Be2 0–0 12.Ngf3 Nc5 13.0–0+=.

6.d3 Qc7 A) 7.e3 A1) 7...d5 8.cd5 (8.Nd2 dc4 9.Ngf3 Nbd7 10.dc4 Bb4 11.Be2 0–0 12.0–0 Rfd8 13.Qc2=; 8.Nf3 Nbd7 9.Nbd2 dc4 10.dc4 Bb4 11.Be2 0–0 12.0–0 Rfd8 13.Qc2=; 8.Be2 Bb4 9.Nd2 dc4 10.dc4 Bd2 11.Qd2 Ne4 12.Qb4 c5 13.b6–/+) 8...Nd5 9.Nd2 Bb4 10.Qc2 Nd7 11.Ngf3 c5 12.Be2 f6 13.0–0=; A2) 7...Be7 8.Nf3 (8.Be2 a6 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 0–0 13.0–0=; 8.d4 0–0 9.Nc3 Nbd7 10.d5 Bg4 11.f3 Bh5 12.a5 cb5 13.cb5+=; 8.Nd2 0–0 9.Ngf3 a6 10.d4 e4 11.Ng5 Bf5 12.f3 d5 13.c5+=) 8...0–0 9.Be2 a6 10.Nc3 ab5 11.ab5 Nbd7 12.0–0 d5 13.Ng5=; A3) 7...a6 8.Nc3 (8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Be7 12.d4 e4 13.Nfd2+=; 8.d4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 e4 12.Ne2 d5 13.Qc1+=; 8.Nd2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Be7 12.d4 e4 13.Ne2+=) 8...ab5 9.ab5 Ra1 10.Ba1 d5 11.Nf3 dc4 12.dc4 Bb4 13.Qa4=; A4) 7...Nbd7 8.Nf3 (8.d4 Be7 9.Nf3 0–0 10.Nbd2 Bf5 11.Be2 e4 12.Nh4 Be6 13.0–0+=; 8.Nd2 Be7 9.Ngf3 0–0 10.Be2 a6 11.Ng5 Bf5 12.bc6 bc6 13.Rb1+=; 8.Be2 d5 9.Nd2 dc4 10.dc4 e4 11.a5 Bd6 12.a6 Rb8 13.ab7+=) 8...d5 9.Nbd2 dc4 10.dc4 Bb4 11.Be2 0–0 12.0–0 Rfd8 13.Qb1+=; B) 7.Nd2 B1) 7...Qa5 8.Ngf3 (8.Rc1 Nbd7 9.Bc3 Qd8 10.d4 ed4 11.Bd4 Be7 12.e3 0–0 13.Ngf3=; 8.Qc2 Be7 9.Ngf3 0–0 10.d4 ed4 11.Nd4 Ng4 12.e3 Bh4 13.g3=; 8.e3 Be7 9.Be2 0–0 10.Ngf3 Nbd7 11.0–0 a6 12.d4 Qc7 13.Ng5=) 8...Be7 9.Qc2 0–0 10.e4 Rd8 11.d4 ed4 12.Nd4 Nfd7 13.Be2+=; B2) 7...Be7 8.e4 (8.Ngf3 0–0 9.d4 Nbd7 10.e4 ed4 11.Nd4 Nc5 12.Qc2 d5 13.bc6+=; 8.d4 ed4 9.Bd4 0–0 10.e4 Qa5 11.Bd3 c5 12.Bb2 Nbd7 13.Ngf3=; 8.e3 0–0 9.Ngf3 a6 10.d4 e4 11.Ng5 Bf5 12.f3 d5 13.c5+=) 8...Qa5 9.Qc2 0–0 10.Ngf3 a6 11.d4 ed4 12.Nd4 Qc7 13.Bd3+=; B3) 7...a6 8.d4 (8.bc6 Nc6 9.Ngf3 Be7 10.e4 0–0 11.Be2 Nh5 12.Ne5 Ne5 13.Be5=; 8.e3 ab5 9.ab5 Ra1 10.Ba1 Be7 11.d4 cb5 12.cb5 e4 13.Ne2+=; 8.Ngf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Qa5 12.e3 Be7 13.Be2=) 8...e4 9.bc6 bc6 10.Qc2 Qa5 11.e3 Be7 12.Bc3 Qf5 13.Ne2=; B4) 7...Nbd7 8.d4 (8.Ngf3 Be7 9.Ng5 Bg4 10.f3 Bh5 11.d4 0–0 12.e4 c5 13.de5+=; 8.e3 cb5 9.ab5 d5 10.cd5 Nd5 11.d4 Bb4 12.de5 Ne5 13.Bd4+=; 8.Nh3 Bh3 9.gh3 d5 10.Bg2 Bb4 11.0–0 0–0 12.Qc2 Qd6 13.Rfc1+=) 8...Qa5 9.e3 Be7 10.Be2 ed4 11.Bd4 c5 12.Bb2 d5 13.Ngf3=; C) 7.e4 C1) 7...Nbd7 8.Nd2 (8.Nf3 d5 9.Ng5 Bb4 10.Nd2 dc4 11.dc4 Nc5 12.Qc2 Bd2 13.Kd2+=; 8.Qc2 cb5 9.ab5 d5 10.ed5 Nd5 11.d4 Nb4 12.Qb3 ed4 13.Bd4+=; 8.bc6 bc6 9.Nd2 Rb8 10.Rb1 Qa5 11.Ngf3 Nc5 12.Ba3 Rb1 13.Qb1–/+) 8...Qa5 9.Ngf3 Nc5 10.Be2 Be7 11.0–0 0–0 12.Qc2 Rad8 13.Rfe1=; C2) 7...Be7 8.Nd2 (8.Nf3 0–0 9.Be2 a6 10.Nbd2 ab5 11.ab5 Ra1 12.Qa1 cb5 13.cb5=; 8.Be2 d5 9.Nf3 d4 10.0–0 a6 11.Ng5 Bd7 12.f4 c5 13.fe5=; 8.Qe2 0–0 9.Nf3 Nbd7 10.d4 c5 11.d5 Bg4 12.Qe3 a6 13.Nbd2=) 8...Qa5 9.Qc2 0–0 10.Ngf3 Re8 11.Be2 Nh5 12.0–0 Nf4 13.Bd1=; C3) 7...a6 8.Nd2 (8.bc6 Nc6 9.Nf3 Be7 10.Nbd2 b6 11.Be2 0–0 12.0–0 Rac8 13.d4=; 8.f4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Nf3 bc4 12.fe5 de5 13.Be5–/+; 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Qa5 12.Bc3 Qb5 13.d4+=) 8...Qa5 9.Ngf3 Be7 10.Be2 0–0 11.0–0 c5 12.Ng5 Nbd7 13.Nb3+=; C4) 7...d5 8.Nd2 (8.f4 de4 9.Be5 Bb4 10.Nd2 Qb6 11.Bf6 gf6 12.de4 Bc5 13.Ndf3–/+; 8.bc6 bc6 9.f4 de4 10.Be5 Qa5 11.Bc3 Bb4 12.Qc2 0–0 13.Bb4–/+; 8.cd5 cd5 9.Nd2 Nbd7 10.Ngf3 Bc5 11.ed5 Nd5 12.Ne5 Ne5 13.d4–+) 8...d4 9.Be2 Bb4 10.f4 Bc3 11.Bc3 dc3 12.Nb1 ef4 13.Nc3=; D) 7.Nf3 D1) 7...Be7 8.Ng5 (8.e4 0–0 9.Be2 a6 10.Nbd2 ab5 11.ab5 Ra1 12.Qa1 cb5 13.cb5=; 8.Nbd2 0–0 9.e4 Nbd7 10.Be2 cb5 11.ab5 a6 12.d4 ed4 13.Bd4=; 8.e3 0–0 9.Be2 a6 10.Nc3 ab5 11.ab5 Nbd7 12.0–0 Ra1 13.Qa1=) 8...Bd7 9.e3 0–0 10.d4 h6 11.Nf3 e4 12.Nfd2 Qa5 13.Be2=; D2) 7...Nbd7 8.Nbd2 (8.e3 d5 9.cd5 Bb4 10.Nbd2 Bd5 11.e4 Be6 12.Ng5 Qd6 13.bc6+=; 8.Ng5 Bg4 9.h3 Bh5 10.g4 Bg6 11.Nf3 d5 12.cd5 cd5 13.Nbd2=) 8...Qa5 9.e3 Be7 10.Be2 0–0 11.0–0 Bg4 12.Qc2 Rfe8 13.h3=; D3) 7...a6 8.Nc3 (8.e3 ab5 9.ab5 Ra1 10.Ba1 Be7 11.Nc3 0–0 12.Be2 d5 13.0–0+=; 8.bc6 Nc6 9.e4 Be7 10.Nbd2 0–0 11.Be2 Nh5 12.Ne5 Ne5 13.Be5=; 8.Ng5 Bd7 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 d5 12.e3 Bb4 13.bc6+=) 8...Be7 9.e4 ab5 10.ab5 Ra1 11.Qa1 0–0 12.Be2 Bg4 13.h3=.

6.d3 Nbd7 A) 7.e3 A1) 7...d5 8.Nd2 (8.cd5 cd5 9.Nf3 Bd6 10.Be2 Rc8 11.0–0 0–0 12.a5 Re8 13.Nc3+=; 8.bc6 bc6 9.Nf3 Bd6 10.Nbd2 Rb8 11.Rb1 Qa5 12.cd5 Bd5 13.Qc2+=; 8.Nf3 Bb4 9.Nbd2 dc4 10.dc4 Ne4 11.Be2 cb5 12.ab5 Ndc5 13.Ba3+=) 8...dc4 9.dc4 Bd6 10.Ngf3 0–0 11.Be2 Qa5 12.Qc2 Rad8 13.0–0=; A2) 7...a6 8.Nc3 (8.d4 Be7 9.Nd2 0–0 10.Ngf3 ab5 11.ab5 Ra1 12.Qa1 cb5 13.de5+=; 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Be7 12.d4 e4 13.Nfd2+=; 8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Qa5 12.Nc3 Nc5 13.Bb2+=) 8...ab5 9.ab5 Ra1 10.Qa1 d5 11.Nf3 dc4 12.dc4 Bg4 13.Be2+=; A3) 7...Be7 8.Nf3 (8.Be2 a6 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 0–0 13.Nc3+=; 8.d4 0–0 9.Nf3 e4 10.Ng5 Bf5 11.Qc2 h6 12.Nf3 Rc8 13.bc6+=; 8.Nc3 0–0 9.Nf3 d5 10.cd5 cd5 11.Be2 Rc8 12.0–0 Bb4 13.Rc1+=) 8...a6 9.Ng5 Bg4 10.f3 Bh5 11.Nc3 0–0 12.Be2 Bg6 13.0–0+=; A4) 7...Qc7 8.Nf3 (8.Nc3 d5 9.cd5 Nd5 10.Nd5 Bd5 11.Qd2 Nc5 12.Qc3 f6 13.e4+=; 8.d4 Be7 9.Nf3 0–0 10.Nbd2 Bf5 11.Be2 e4 12.Nh4 Be6 13.0–0+=; 8.Nd2 Be7 9.Ngf3 0–0 10.Be2 a6 11.Ng5 Bf5 12.bc6 bc6 13.Rb1+=) 8...d5 9.cd5 Bb4 10.Nbd2 Bd5 11.e4 Be6 12.Ng5 Qd6 13.bc6+=; B) 7.Nc3 d5 8.e3 (8.cd5 cd5 9.d4 ed4 10.Qd4 Bc5 11.Qd1 d4 12.Nb1 Bb4 13.Nd2–+; 8.bc6 bc6 9.e3 Rb8 10.cd5 cd5 11.Qd2 Nc5 12.Rb1 d4 13.ed4–+; 8.Nf3 d4 9.Nb1 Bb4 10.Nbd2 0–0 11.bc6 bc6 12.e3 Bg4 13.Ba3–/+) 8...d4 9.bc6 bc6 10.ed4 ed4 11.Na2 Qb6 12.Bc1 Bd6 13.Nf3–/+; C) 7.Nd2 C1) 7...Qa5 8.e3 (8.Ngf3 Be7 9.e3 0–0 10.Be2 a6 11.0–0 ab5 12.ab5 Qb4 13.Qc2=; 8.Qc2 Be7 9.Ngf3 0–0 10.d4 ed4 11.Nd4 Rac8 12.bc6 bc6 13.e4=; 8.e4 d5 9.bc6 bc6 10.ed5 cd5 11.Ngf3 Bd6 12.Ng5 Bf5 13.Rc1–/+) 8...Be7 9.Ngf3 0–0 10.Be2 a6 11.0–0 ab5 12.ab5 Qb6 13.d4=; C2) 7...Be7 8.d4 (8.e3 a6 9.d4 0–0 10.Ngf3 ab5 11.ab5 Ra1 12.Qa1 cb5 13.de5+=; 8.Rb1 Qa5 9.g3 Nb6 10.Bg2 Rc8 11.Ra1 0–0 12.Ngf3 a6 13.0–0=; 8.Ngf3 0–0 9.e4 Nc5 10.Be2 a6 11.0–0 ab5 12.ab5 cb5 13.cb5=) 8...Qa5 9.e3 ed4 10.Bd4 Ne5 11.Qc2 0–0 12.f4 Neg4 13.h3=; C3) 7...d5 8.d4 (8.bc6 bc6 9.Ngf3 d4 10.Rb1 Bc5 11.g3 0–0 12.Bg2 Qc7 13.0–0+=; 8.cd5 cd5 9.Ngf3 Bd6 10.e3 0–0 11.Be2 Qa5 12.0–0 Rfc8 13.Nb3+=; 8.Ngf3 Bd6 9.d4 e4 10.bc6 bc6 11.Ng5 e3 12.fe3 Ng4 13.Ngf3–+) 8...ed4 9.cd5 Nd5 10.Bd4 c5 11.Bb2 Qa5 12.e4 N5f6 13.Qc2=; C4) 7...a6 8.d4 (8.bc6 bc6 9.Ngf3 Rb8 10.Rb1 Qa5 11.Ng5 Nc5 12.Ba3 Rb1 13.Qb1+=; 8.e4 ab5 9.ab5 Ra1 10.Qa1 Nc5 11.Be2 cb5 12.cb5 Bd7 13.Qb1+=; 8.Ngf3 ab5 9.ab5 cb5 10.Ra8 Qa8 11.Ng5 Qa4 12.Ne6 fe6 13.e3+=) 8...ab5 9.ab5 Ra1 10.Qa1 cb5 11.cb5 e4 12.e3 Be7 13.Ne2+=; D) 7.Nf3 D1) 7...a6 8.Nc3 (8.e3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Be7 12.d4 e4 13.Nfd2+=; 8.Ng5 Bg4 9.h3 Bh5 10.g4 Bg6 11.Nf3 ab5 12.g5 Nh5 13.cb5+=) 8...ab5 9.ab5 Ra1 10.Ba1 Be7 11.Ng5 Bg4 12.h3 Bh5 13.g4=; D2) 7...Qc7 8.Ng5 (8.Nbd2 Be7 9.Ng5 Bg4 10.f3 Bh5 11.d4 0–0 12.e4 c5 13.de5+=; 8.e3 d5 9.cd5 Bd5 10.Nbd2 Bb4 11.e4 Be6 12.Ng5 Qd6 13.bc6+=) 8...Bg4 9.h3 Bh5 10.g4 Bg6 11.Nf3 d5 12.cd5 cd5 13.Nbd2=; D3) 7...Bg4 8.Nbd2 (8.e3 d5 9.Be2 dc4 10.dc4 Bb4 11.Bc3 Bc3 12.Nc3 Qc7 13.0–0=; 8.d4 Be7 9.h3 Bf3 10.gf3 0–0 11.Bg2 ed4 12.Qd4 d5 13.cd5+=; 8.Nc3 Bf3 9.ef3 d5 10.d4 ed4 11.Qd4 Bc5 12.Qd2 Qe7 13.Be2+=) 8...Be7 9.e3 0–0 10.Be2 a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1=; D4) 7...Be7 8.Ng5 (8.e4 a6 9.Ng5 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 d5 13.Ne6+=; 8.g3 a6 9.Ng5 ab5 10.Ne6 fe6 11.ab5 Ra1 12.Ba1 cb5 13.cb5+=; 8.e3 a6 9.Ng5 Bg4 10.f3 Bh5 11.Nc3 0–0 12.Be2 ab5 13.ab5+=) 8...Bg4 9.h3 Bh5 10.g4 Bg6 11.Bg2 d5 12.Nd2 0–0 13.Ngf3=.

6.d3 Be7 7.Nc3 A) 7...d5 8.Nf3 (8.cd5 Nd5 9.Nd5 cd5 10.Qd2 Nd7 11.d4 e4 12.e3 Nb6 13.Ba3+=) 8...d4 9.Nb1 Nbd7 10.e3 Bb4 11.Nbd2 c5 12.Ng5 Bf5 13.Qf3+=; B) 7...a6 8.Nf3 (8.e4 d5 9.cd5 cd5 10.ed5 Nd5 11.Nd5 Qd5 12.Bc3 0–0 13.Nf3–/+; 8.e3 d5 9.Nf3 d4 10.Nb1 ab5 11.ab5 Ra1 12.Ba1 de3 13.fe3+=; 8.bc6 Nc6 9.e4 0–0 10.Nf3 Rc8 11.Be2 Bg4 12.0–0 b6 13.Nd2=) 8...0–0 9.e3 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.Be2 d5 13.0–0=; C) 7...0–0 8.Nf3 (8.e3 d5 9.cd5 Nd5 10.Rc1 Bb4 11.Qd2 cb5 12.ab5 Nd7 13.e4–/+) 8...Qa5 9.e3 Nbd7 10.Be2 d5 11.0–0 dc4 12.dc4 Rfd8 13.Ng5+=; D) 7...Nbd7 8.Nf3 (8.e3 0–0 9.Nf3 d5 10.cd5 cd5 11.Be2 Rc8 12.0–0 Qa5 13.Rc1+=; 8.Rb1 cb5 9.Nb5 d5 10.Nf3 dc4 11.dc4 Ne4 12.Nd2 Bb4 13.Bc1–/+; 8.Nh3 Bh3 9.gh3 d5 10.Bg2 d4 11.Nb1 Rc8 12.0–0 Nc5 13.Nd2+=) 8...0–0 9.e3 d5 10.cd5 cd5 11.Be2 Rc8 12.0–0 Qa5 13.Rc1+=.

6.d3 Be7 7.d4 A) 7...ed4 8.Qd4 Nbd7 9.Nf3 0–0 10.Nbd2 Nc5 11.e4 d5 12.cd5 cd5 13.e5=; B) 7...0–0 8.bc6 (8.Nd2 ed4 9.Bd4 Qa5 10.Qc2 Nbd7 11.Ngf3 Rad8 12.e3 Nc5 13.Be2=; 8.e3 e4 9.Nd2 Qa5 10.Qc2 d5 11.c5 Nbd7 12.Rb1 cb5 13.ab5+=; 8.Qc2 ed4 9.Bd4 a6 10.Nf3 ab5 11.cb5 cb5 12.ab5 Ra1 13.Ba1–/+) 8...Nc6 9.d5 Qb6 10.Qc1 Nd5 11.cd5 Bd5 12.Qd2 Na5 13.Nc3=; C) 7...Nbd7 8.Nd2 (8.e3 0–0 9.Nf3 e4 10.Ng5 Bf5 11.Qc2 d5 12.bc6 bc6 13.Nc3+=; 8.Nf3 Bc4 9.bc6 bc6 10.Nbd2 Bd5 11.de5 de5 12.Ne5 Bb4 13.Nd3–/+; 8.Qc2 ed4 9.Bd4 c5 10.Bb2 0–0 11.e4 Ne5 12.Nd2 a6 13.Be2+=) 8...Qa5 9.Qc2 ed4 10.Bd4 Ne5 11.e3 0–0 12.Be2 Qc7 13.f4=; D) 7...e4 8.Qc2 (8.Nd2 0–0 9.e3 d5 10.Ba3 cb5 11.ab5 dc4 12.Bc4 Bc4 13.Nc4+=; 8.e3 0–0 9.Nc3 d5 10.cd5 Bd5 11.Nge2 cb5 12.ab5 Nbd7 13.Qc2+=; 8.bc6 bc6 9.Nd2 Nbd7 10.e3 Rb8 11.Qc2 0–0 12.Rb1 Rb4 13.Bc3+=) 8...d5 9.c5 0–0 10.e3 b6 11.Ba3 Qd7 12.cb6 Ba3 13.Ra3+=.

6.d3 Be7 7.e3 A) 7...0–0 8.Nf3 (8.Be2 a6 9.bc6 bc6 10.Nf3 Nbd7 11.Nbd2 Rb8 12.Qc2 Qa5 13.0–0+=; 8.d4 e4 9.Nd2 d5 10.c5 b6 11.bc6 Nc6 12.Bb5 Rc8 13.Rc1+=) 8...a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.Be2 d5 13.0–0=; B) 7...a6 8.Nf3 (8.Nc3 d5 9.Nf3 d4 10.Nb1 de3 11.fe3 ab5 12.ab5 Ra1 13.Ba1+=; 8.d4 Nbd7 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 e4 12.Nfd2 cb5 13.d5+=; 8.bc6 bc6 9.Nc3 0–0 10.Rb1 Nbd7 11.Nf3 Qa5 12.Qc2 Rfb8 13.Be2+=) 8...0–0 9.Nc3 Qa5 10.Be2 Qb4 11.Qd2 Nbd7 12.0–0 ab5 13.Ba3=; C) 7...Qc7 8.Nf3 (8.Be2 a6 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 0–0 13.0–0=; 8.d4 0–0 9.Nc3 Qa5 10.Nf3 Nbd7 11.Be2 e4 12.Ng5 Bf5 13.Qd2=; 8.Nd2 0–0 9.Ngf3 a6 10.d4 e4 11.Ng5 Bf5 12.f3 d5 13.c5+=) 8...0–0 9.Be2 a6 10.Nc3 ab5 11.ab5 Nbd7 12.0–0 Ra1 13.Qa1=; D) 7...Nbd7 8.Nf3 (8.Be2 a6 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 0–0 13.Nc3+=; 8.d4 0–0 9.Nf3 e4 10.Ng5 Bf5 11.Qc2 h6 12.Nf3 Rc8 13.bc6+=; 8.Nc3 0–0 9.Nf3 d5 10.cd5 cd5 11.Be2 Rc8 12.0–0 Qa5 13.Rc1+=) 8...a6 9.Ng5 Bg4 10.f3 Bh5 11.Nc3 0–0 12.Be2 ab5 13.ab5+=.

6.d3 Be7 7.e4 0–0 (7...Nbd7 8.Nd2 (8.Nf3 a6 9.Ng5 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 d5 13.Ne6+=) 8...d5 9.Ngf3 de4 10.de4 Bb4 11.Qc2 Bg4 12.Bc3 Bc3 13.Qc3+=; 7...a6 8.Nd2 (8.Nc3 d5 9.cd5 cd5 10.ed5 Nd5 11.Nd5 Qd5 12.Bc3 0–0 13.Nf3–/+; 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 0–0 12.Nc3 Nbd7 13.Ng5+=; 8.f3 0–0 9.d4 ed4 10.Qd4 Nbd7 11.Nd2 Ne8 12.Qe3 Bf6 13.Bc3–/+) 8...Qa5 9.Ne2 0–0 10.Bc3 Qc7 11.d4 Nbd7 12.d5 Nc5 13.Ng3+=; 7...Qc7 8.Nd2 (8.Be2 a6 9.bc6 Nc6 10.Nf3 0–0 11.0–0 Bg4 12.Nbd2 Rfe8 13.Rb1=; 8.Nf3 0–0 9.Nbd2 Nbd7 10.Ng5 Bg4 11.f3 Bh5 12.d4 c5 13.de5+=; 8.Qe2 0–0 9.Nf3 c5 10.a5 Qd8 11.Nbd2 a6 12.b6 Nfd7 13.Qe3=) 8...Qa5 9.Ngf3 0–0 10.Be2 Nbd7 11.0–0 Nc5 12.Qc2 Rac8 13.d4=) 8.Nf3 (8.Ne2 Nbd7 9.f4 Ng4 10.f5 Qb6 11.fe6 Bh4 12.g3 Qf2 13.Kd2 Bg5–/+; 8.Nd2 Nbd7 9.Ngf3 Nc5 10.Be2 a6 11.0–0 ab5 12.ab5 cb5 13.cb5=) 8...Nbd7 (8...a6 9.Nc3 Qa5 10.Qd2 Nbd7 11.bc6 bc6 12.d4 Rfb8 13.Bc1+=) 9.Nbd2 (9.Be2 a6 10.Nbd2 Nc5 11.0–0 ab5 12.ab5 cb5 13.cb5=) 9...Nc5 (9...Qa5 10.Be2 Nc5 11.0–0 Rad8 12.Qc2 Qc7 13.Ng5=) 10.Nb3 (10.Qc2 a6 11.d4 ed4 12.Nd4 ab5 13.ab5=) 10...Nb3 (10...Nfd7 11.Be2 a6 12.0–0 Qc7 13.Nc5+=) 11.Qb3 Rb8 (11...a6 12.Be2 ab5 13.ab5+=) 12.Qc2 (12.Be2 a6 13.0–0=) 12...Qd7 (12...Rc8 13.Be2=) 13.d4 (13.Be2=) 13...ed4 14.Nd4 c5 15.Ne6 Qe6 16.f3 Rfd8 17.Rd1 b6 18.Be2 Nh5 19.g3 Qh3 20.Bf1 Qe6 21.Be2 Bf6 22.Bf6 Nf6 23.Rd2 Re8 24.0–0 Rbd8 25.Re1 ˝–˝. Diviak,Peter – Ocko,Martin, 3rd Senica Open, 2011.

6.d3 Be7 7.Nf3 A) 7...Nbd7 8.Ng5 (8.e4 a6 9.Ng5 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 d5 13.Ne6+=; 8.e3 a6 9.Ng5 Bg4 10.f3 Bh5 11.Nc3 0–0 12.Be2 d5 13.0–0+=; 8.Nbd2 0–0 9.e4 Nc5 10.Be2 a6 11.0–0 ab5 12.ab5 cb5 13.cb5=) 8...Bg4 9.h3 Bh5 10.g4 Bg6 11.Bg2 Rc8 12.Nf3 0–0 13.0–0=; B) 7...a6 8.Nc3 (8.Ng5 Bd7 9.Nc3 d5 10.e3 d4 11.ed4 ed4 12.Nce4 ab5 13.ab5+=; 8.bc6 bc6 9.Nc3 Nbd7 10.Rb1 Rb8 11.Ng5 Qa5 12.Ne6 fe6 13.Qc2–/+; 8.e3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 0–0 12.Be2 Qb6 13.d4+=) 8...0–0 9.e3 Qa5 10.Be2 Qb4 11.Qd2 Nbd7 12.0–0 ab5 13.Ba3=; C) 7...Bg4 8.Nbd2 (8.e4 a6 9.Nc3 0–0 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Nbd7 13.0–0=; 8.Nc3 Qa5 9.Rc1 0–0 10.e3 d5 11.cd5 cd5 12.d4 Rc8 13.h3–/+; 8.e3 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 0–0 13.0–0=) 8...0–0 9.e4 Nbd7 10.Be2 Nc5 11.0–0 Re8 12.Re1 Qc7 13.Qc2=; D) 7...0–0 8.e3 (8.e4 a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.d4 Bg4 13.Qa7+=; 8.Nbd2 Nbd7 9.e4 Nc5 10.Be2 a6 11.0–0 ab5 12.ab5 cb5 13.cb5=; 8.Nc3 Nbd7 9.e4 d5 10.Ng5 Nc5 11.cd5 cd5 12.ed5 Nd5 13.Ne6–/+) 8...a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 Nbd7 12.Be2 d5 13.0–0=.

6.d4 Bc4 7.de5 de5 8.Qd8 Kd8 9.Be5 Nbd7+=.

6.e3 Be7 7.Nf3 Nbd7 (7...0–0 8.Be2 a6 9.0–0 ab5+=) 8.Be2 Nc5 (8...Qc7 9.d4= e4=; 8...cb5 9.ab5 0–0=) 9.d4= Nce4 (9...ed4 10.Nd4 (10.Qd4? Nb3 11.Qd1 Na1–+; 10.ed4?! Nce4=) 10...Rc8 11.0–0=) 10.de5 Nf2?? (better is 10...Qa5 11.Nbd2 de5 12.Be5 0–0–0=) 11.Kf2+– Ne4 12.Kf1 d5 13.cd5 cd5 14.Nbd2 0–0 15.Bd3 Qb6?! (15...Nc5 16.Bc2+–) 16.Bd4 Bc5 (16...Nd2 17.Qd2 Qd8 18.Kf2+–) 17.Be4 de4 18.Ne4 Bc4 (18...Bd4 19.ed4 Bd5 20.Nd6+–) 19.Kf2 Bd4 20.ed4 (worse is 20.Nd4 Qg6 21.Qf3 f6+–) 20...Rfe8 (20...Qe6 21.Nc5 Qe7 22.Qc1+–) 21.Nd6 (21.Nd6 Bd5 22.a5+–) 1–0. Huelle – Kitzler, Leipzig, 1999.

5.e3 cb5

6.cb5 Nbd7 7.d4 Be7 8.Nc3 e4 9.Rc1 d5+=.

6.cb5 Bg4 7.Be2=.

4.b5 Nbd7

5.Nc3 a6 6.a4 Be7 (6...ab5 7.ab5 Ra1 8.Ba1=+) 7.Nf3=+ 0–0 8.e3 e4 (8...ab5 9.ab5 Ra1 10.Qa1=+) 9.Nd4 ab5 10.ab5 Ra1 11.Qa1 Nc5 12.Be2 d5 13.0–0 dc4 14.Bc4 Bg4 15.h3 Bh5 16.Nf5= Qd7 17.Ng7 Bg6 18.Na4+= Na4 19.Bf6 Nb6 20.Be2 Ra8 21.Qb2 Bf6 22.Qf6 Qd8 23.Qb2 Na4 24.Qa1 Nc5 ˝–˝. cgits (2680) – elguason (2475), net–chess.com, 2005.

5.Nc3 b6 6.e3 Bb7 7.Nf3 Be7 8.Be2 0–0 9.0–0 Re8 (9...a6 10.a4=) 10.Qc2 Nf8 11.d4 ed4 12.Nd4 Ng6 (12...Ne6 13.Nc6 Bc6 14.bc6+/–) 13.Bf3 Bf3 14.Nf3 Qd7 15.Rad1 Qe6 16.Nd5 Nd5 17.Rd5 (better is 17.cd5!? Qd7 18.Qd3+/–) 17...Bf6= 18.Bf6 Qf6 19.Rf5 Qe7 20.Qc3 (20.Rd1 a6=) 20...Nh4 (20...a6 21.a3=) 21.Nh4 Qh4 22.g3 (22.Rf3 a6=) 22...Qh6 23.f4 (23.Qd3 a6=) 23...Re6 (23...a6 24.Rg5–/+) 24.Re1 Re4 25.Rd5 Qe6 Attacking the backward pawn on e3 (25...a6 26.Rd4 Re7 27.Qc2+=) 26.Rd4 Re8 The pressure on the backward pawn e3 grows 27.Kf2 Qh3 28.Kg1 Qf5 (28...R4e6 29.e4+=) 29.a4 (29.Qd3 h6=) 29...h5 (29...Qe6 30.Re4 Qe4 31.a5+=) 30.a5 h4 31.ab6 ab6 32.Kg2 (32.Re4 Re4 33.Ra1 hg3 34.hg3 Qh3+=) 32...hg3 33.hg3 R4e6 (better is 33...Qe6+=) 34.Rd5?? (better is 34.e4 Qh7 35.Qf3+=) 34...Qe4–+ 35.Kf2 Rh6 36.Ke2 Rh2 37.Kd1 Qb1 38.Qc1 Qb3 0–1. Deregowski,Richard – Horneberg,Heinz, Recklinghausen op, 1994.

5.e3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 d5 9.Qb3 Nc5 10.Qa2 d4 11.Nf3 de3 12.de3 Nd3 13.Bd3 Qd3 14.Ne5 Bb4 15.Nd2 Bd2 16.Qd2 Qb1 17.Qd1 Qb4 18.Ke2 Be6 19.Qd3 Nd7 20.Bc3 Qd6 21.Nd7 Qd3 22.Kd3 Kd7 23.Ra1 Rd8 24.Bg7 Rg8 25.Be5 Rg4 26.Bf4 Bf5 27.Ke2 Rg6 28.Rd1 Kc8 29.g3 b6 30.Rd5 Be6 31.Rd4 Kb7 32.Kd3 Bg4 33.f3 Be6 34.Rd8 h5 35.Rh8 f5 36.Rh5 Rg7 37.Kc3 Bc8 38.Be5 Re7 39.f4 c5 40.bc6 + 40...Kc6 41.Kb4 Be6 42.Rh8 Ra7 43.Bd4 Rb7 44.h4 Kc7 45.h5 Kd7 46.Rh7 Kc8 47.Rb7 Kb7 48.h6 Bg8 49.e4 fe4 50.g4 Kc6 51.g5 Bh7 52.Kc3 b5 53.cb5 Kb5 54.Be5 Kc5 55.Kd2 Kd5 56.Ke3 Ke6 57.Kf2 Kf5 58.Kg3 Bg6 59.Bd4 Bh7 ˝–˝. purplegadge (1685) – capricornio (1720), gameknot.com, 2011.

5.e3 Nc5 6.d4= ed4 7.ed4 Nce4 8.f3 Ng5 9.d5 h6 10.Qe2 Be7 11.Bf6 gf6 12.Qe3 Bf5 (12...0–0!?+=) 13.h4+/– Nh7 14.Qh6 Qd7 (14...Kd7!? 15.Qf4 Bc2+/–) 15.g4+– Bb1 16.Rb1 0–0–0 17.Qe3 f5? (17...Kb8 18.Bd3 Rde8+–) 18.Bd3 (better is 18.Qa7!? Bh4 19.Kd1 Qe7+–) 18...Kb8 19.Bf5 Qe8 20.Be4 Nf6 21.h5 Qf8 22.Qf4 Nd7 23.h6 Re8 24.Ne2 Nc5 25.Rd1 (25.b6 Bh4 26.Rh4 Re4+–) 25...Bd8 26.Rd4 (26.b6 ab6 27.Ng3 Rh7+–) 26...Qg8 (26...Re5 27.Bf5+/–) 27.h7 Qg7 28.Qh6 Qe5 29.Rh5 Qe7 (29...Qf6 30.Qf6 Bf6 31.Rd1 Ne4 32.fe4 Re4 33.Kd2 Rg4 34.Rf1 Bg5 35.Kd3+–) 30.Ng3 b6 (30...Qd7 31.Nf5+–) 31.Rd2 (31.Kd1 Qd7+–) 31...Kb7 (31...Ne4 32.Ne4 Qd7 33.Rdh2+–) 32.Rdh2 (32.Re2 Ne4 33.Ne4 Qd7+–) 32...Nd3 (32...Ne4 33.Ne4 Qd7 34.Kd2+–) 33.Kf1 (33.Kd1!? Nc5+–) 33...Nc5 34.Qc1 (34.Re2!? Ne4 35.Ne4 Qd7+–) 34...Qf6 35.Kg2 Qd4 36.Rh1 Ne4 37.Ne4 Re4 38.fe4 Qe4 39.Kg3 Bf6 (39...Qd3 40.Kf2 Bf6 41.Qe1 Bd4 42.Kg2 Qc4 43.Rf5+/–) 40.Re1+– Qd3 41.Re3 Qg6 42.c5! bc5 (42...bc5 43.Qa3 Combination; 42...dc5 43.Qh1 Combination) 43.Qh1 Be5 44.Kf3 Qf6 (44...Qc2 45.Qf1+/–) 45.Ke2+– Qf4? (better is 45...Bf4 46.Re4 Qb2 47.Kf3 Be5+/–) 46.Re4 (better is 46.Qe4 Qf6 47.g5+– (47.Re5?! Qe5 48.Qe5 de5+–)) 46...Qg3?? (46...Qf6+–) 47.Rh3 Rh7 48.Rh7 (48.Rg3?! Rh1 49.Rf3 Rh2 50.Rf2 Rf2 51.Kf2 Kb6+/–) 48...Qc3 49.Qb1 Qg3 (49...f6 50.Qb3 Qb3 51.ab3+–) 50.Rf7 Qg2 51.Rf2 Qg3 52.Qb3 (52.Qb3 Qb3 53.ab3+–) 1–0. Machete99 (1745) – Petronio (1765), ICC, 2002.

5.e3 c6 6.a4 Be7 7.Nf3 cb5 8.ab5= b6 (8...0–0!?=) 9.Be2 Bb7 10.0–0 a6 (10...e4 11.Nd4+=) 11.Nc3 (11.ba6 Ra6 12.Ra6 Ba6+/–) 11...a5+= 12.d4 Ne4 (better is 12...0–0!?+=) 13.Ne4+/– Be4 14.de5 (14.c5 dc5 15.de5 Qc7+/–) 14...de5 15.Be5?? (15.Ne5 Ne5 16.Be5 Bc5+/–) 15...Ne5?? (better is 15...Bf3 16.Bf3 Ne5 17.Ba8 Qa8–/+) 16.Ne5+= Qc7 (16...Bf6 17.f4+=) 17.Qd4+/– Bb7 18.Nc6 Bf6 19.Qe4 Be7 (better is 19...Qe7!? 20.Qe7 Be7+/–) 20.Bf3 1–0. Nikolic,Jovane (1710) – Sato,Alberto Akio, Mogi das Cruzes Brazil, Open, 2013.

5.e3 Be7 6.Ne2 d5 7.cd5 Nd5 8.Nbc3 N5f6 9.Ng3 Nc5 10.d4 ed4 11.ed4 Ne6 12.d5 Nf4 13.Qd4 Ne6 14.Qc4 Nc5 15.Be2 0–0 16.0–0 Bd6 17.Bf3 Nfd7 18.Nce4 Ne4 19.Be4 Be5 20.Bh7 Kh7–/+ 21.Qe4 Kg8?? 22.Be5+/– Re8? 23.Bc7!+– Re4 24.Bd8 Re5 25.Rad1 Nc5 26.Bc7 Re8 27.Rfe1 Bd7 28.b6 Na6 29.Re8 Re8 30.d6 ab6 31.Bb6 Rc8 32.h4 Rc6 33.Be3 f6 34.a3 Rc3 35.a4! Ra3 36.Rd4 Ra1 37.Kh2 Ra4 38.Ra4 Ba4 39.Bb6 Bd7 40.Ne4 Kf7 41.Nc5 Nc5 42.Bc5 g6 43.Kg3 f5 44.Kf4+– Ke6 45.f3 Kf6 46.g4 b5 47.Bd4 Kf7 48.h5 gh5 49.gh5 Kg8 50.Kg5 Kf7 51.h6 Kg8 52.Kg6 Be8 53.Kf5 Kh7 54.Kg5 (54.Kg5 b4 55.f4+–) 1–0. Pruvost,Alain – Bouveur,Gerard (1660), Bethune op–B, 2003.

5.g3 Nb6 6.c5 Nc4 7.Qc2 –/+.

5.g3 c6 6.a4 (6.Bg2 cb5 7.cb5 d5+=) 6...cb5 (6...Nb6 7.bc6 Nc4 8.c7 Qc7 9.Bc3–+) 7.ab5+= Nc5 (7...Qc7 8.e3+=) 8.e3 (8.d4 ed4 9.Bd4 d5 10.cd5 Nd5=) 8...Bf5 (better is 8...Bg4 9.f3 Bf5+=) 9.Bg2?? (better is 9.d4 ed4 10.Bd4= (10.ed4 Qe7 11.Kd2 Nfe4 12.Kc1 Nf2 13.dc5 Nd1 14.Kd1 Qe4–+; 10.Qd4? Be4 11.f3 Nb3–+)) 9...Nd3–+ 10.Ke2 (10.Kf1 Nb2 11.Qb3 Nd3 12.Bb7 Nc5 13.Bc6 Bd7 14.Bd7 Qd7–+) 10...Nb2 11.Qb3 Nd3 12.Nc3 Nc5 Black plans e4 13.Qb1 (13.Qa2 Bd3 14.Ke1 e4–+) 13...e4 (better is 13...Bb1 14.Rb1 e4–+) 14.Bh3 Bh3 15.Nh3 Be7 (15...a6 16.f3 Qd7 17.Ng5 ef3 18.Nf3–+) 16.Qc2 (16.Ng5 d5 17.cd5 0–0–+) 16...0–0 17.Rab1 (17.Ng5 d5 18.cd5 Re8–+) 17...d5 (better is 17...a6 18.Ng5 ab5 19.Rb5–+) 18.f3 (18.cd5 Rc8–+) 18...dc4 (18...ef3 19.Kf3 dc4 20.Nf4–+) 19.fe4 (19.Ne4 Qd3 20.Qd3 cd3 (worse is 20...Nd3 21.Nef2–+) 21.Ke1 Nfe4 22.fe4 Ne4–+) 19...Qd3 (better is 19...Nd3!? 20.Nf4 Nb4 21.Qa4–+) 20.Qd3 cd3 21.Kd1 (21.Kf3 a6–+) 21...Nfe4 22.Nf4 (22.Ne4 Ne4 23.Rf1 Rfc8–+) 22...Nc3 (better is 22...Nf2 23.Ke1 Nh1–+) 23.dc3 Rad8 24.Kd2 (24.Ra1 Ne4–+) 24...Bg5 (better is 24...Ne4!? 25.Kc1 Ba3 26.Kd1 Nc3 27.Kd2 Ne4 28.Kd1 Nf2 29.Kd2 Nh1 30.Rh1 Bb4 31.Kd1–+) 25.h4 (25.Rb4 Rfe8 26.Ra1 Ne4 27.Re4 Re4 28.Ra7 b6–+) 25...Bf4 (25...Ne4 26.Kc1 Bf4 27.ef4 Ng3 28.Rd1–+) 26.gf4 (26.ef4 Ne4 27.Ke3 Nc3–+) 26...Ne4 27.Ke1 (27.Kc1 Nc3 28.Rb2 Rfe8–+) 27...d2 28.Ke2 (28.Kd1 Nc3 29.Kc2 Nb1 30.Rb1 Rd5–+) 28...Nc3 29.Kf3 Nb1 30.Rb1 d1Q (30...d1Q 31.Rd1 Rd1–+) 0–1. Maedel,Katja – Riewe,Gerhard, GER–ch U13 Osnabrueck, 1994.

5.e3 b6

6.Nc3 a6=.

6.Nc3 Bb7 7.d3 Nc5 8.Nf3 h6 9.Be2 Ne6 10.0–0 Be7 11.d4 e4 12.Nd2 Ng5 (12...0–0 13.Qc2+/–) 13.d5 h5 (13...0–0!?+/–) 14.h4+– Ngh7 15.Nde4 Ne4 16.Ne4 Bf6 17.Nf6 Nf6 18.g3 Qe7 19.Bf6 (19.Bd3 a6 20.ba6 Bc8+–) 19...Qf6 20.Bh5 0–0–0 (20...g5!? 21.hg5 Qg5+/–) 21.Bg4 Kb8 22.Qf3 Qc3 23.Rac1 (worse is 23.Qf7 Qc4 24.Be6 Qb5+–) 23...Qb4 (23...Qb2 24.a4+–) 24.Qf7 a5 (24...Qb2 25.Be6+–) 25.Rc2 (25.ba6!? Ba6 26.Qg7 Rdg8+–) 25...Qc5 26.Be6 (26.Qg7?! Rhg8 27.Qf6 Bd5+–) 26...Qa3 27.Qg7 Qd3 28.Rfc1 Qe4 29.Rd2 Bc8 30.Rd4 Qf3 31.Qg4 Qf6 32.Bc8 Rc8 33.Qf4 Qg7 34.Rc3 Rcf8 35.Qg4 Qe5 36.Qe4 Qf6 37.Qc2 Rfg8 (37...Qf3 38.e4 Qf6 39.Rdd3+–) 38.Rf4 Qe7 39.Qe4 Qg7 40.Qd4 Qd7 (40...Qd7 41.Kf1 Qh7+–). Bardyn,K – Antosz,M, corr Radom–ch POL, 1994.

6.Nf3 a6 7.Be2=.

6.Nf3 Bb7 7.Nc3 (7.Be2 a6=) 7...g6 (7...a6 8.Be2=) 8.Be2+= Bg7 9.0–0 0–0 10.Qc2 (10.d4 a6=) 10...Re8 11.Rad1 (11.d4 a6=) 11...Nc5 (11...a6 12.d4=) 12.d4+= ed4 13.Nd4 (13.ed4 Nce4+=) 13...Qd7 (13...a6 14.Bf3=) 14.h3 (14.Nb3 Nb3 15.Qb3 Qe6+=) 14...a5 (14...a6 15.Bf3=) 15.Kh2 (15.Nf3 Qe6=) 15...Qe7 (15...a4 16.a3=) 16.Nc6 (16.Bf3 Bf3 17.Nf3 Qd7=) 16...Bc6 17.bc6 Qe5 18.Kg1 Nfe4 19.Na4 (19.Rd5 Qe6+=) 19...Qe7 (19...Qe6 20.Nc5 Nc5 21.Bg4=) 20.Bd4 (20.Nc5 Nc5 (worse is 20...dc5 21.Rd7 Qe6 22.Rc7+/–) 21.Bf3 Bb2 22.Qb2 Qg5=) 20...Bd4+= 21.Rd4 (21.ed4 Na4 22.Rd3 Nec3–+) 21...Na4 (21...Ng3 22.Re1+=) 22.Qa4 Nc3 (22...Ng3 23.Re1+=) 23.Qc2= Ne2 24.Qe2 Qf6 25.Rfd1 (25.Qg4 Re7=) 25...Re5 26.Rd5 Rae8 27.Qd3 R8e6 28.Rd2 Qe7 29.a4 (29.Qb3!?+=) 29...Qe8–/+ 30.c5 (30.Qb3!?–/+) 30...Rd5–+ (30...dc5?? 31.Rd8 Rc6 32.Re8 Re8 33.Qd7+–; 30...Qc6?! 31.cb6 Rd5 32.Qd5 Qb6 33.Qd3+=; 30...bc5?! 31.Re5 Re5 32.Qa6+=) 31.Qd5 Re5 (31...dc5?! 32.Qd7–/+; 31...bc5?! 32.Rb2+=) 32.Qe5?? (better is 32.Qf3 Rc5 33.Rd4–+) 32...de5 33.Rd7 Qb8 (33...bc5 34.Rc7 c4 35.Kf1–+) 34.Rd5 (34.cb6 Qb6 35.Rd5 Qb4–+) 34...b5 (34...b5 35.ab5 Qb5 36.Re5 Qc6–+) 0–1. Kuhn,Heinz – Ratayczak,Hauke, SEM Tourn–A Voelklingen, 2003.

4.b5 Be7

5.a3 Nbd7 6.d4 0–0 7.e3 a6 8.Be2 ab5 =+.

5.Qb3 Nbd7 6.d4–/+.

5.Qb3 Be6 6.Nf3 Nbd7 7.d4 ed4 (7...e4 8.Ng5+=) 8.Bd4 (8.Nd4 Nc5 9.Ne6 Nb3 10.Nd8 Na1 (10...Rd8?? 11.ab3 Ra8 12.g3+–) 11.Nb7 Nc2 12.Kd2 Nb4=) 8...h6 (8...Nb6 9.e3=) 9.e3= 0–0 10.Nc3 c5 11.Bf6 (11.bc6 bc6 12.Bd3 Rb8+=) 11...Bf6+= Black fights for the Initiative 12.Rd1 (12.Bd3 a6+=) 12...Qa5–/+ 13.Rc1 a6 14.Kd1 (14.Nd2 Bc3 15.Qc3 Qc3 (15...Qa2? 16.Ra1 ab5 17.Ra2 Ra2 18.cb5+–) 16.Rc3 ab5 17.cb5 Ra2–/+ (17...Ba2?! 18.Ne4+=)) 14...ab5 15.Nb5 Qa2 16.Qa2 Ra2 17.Nd2 (17.Nd6 Rf2 18.Rb1 Ra8–+) 17...d5–+ 18.cd5 Bd5 19.Nc3 (19.Nc7 Bc6 20.Bc4 Rb2–+ (20...Bg2?! 21.Rg1 Rd2 22.Kd2+=)) 19...Bc3 20.Rc3 b6 (20...Nf6 21.f3 Rd8 22.Kc1 Ra1 23.Kc2–+) 21.e4 Be6 22.Bd3 Ne5 23.Bb1 Ra4 (23...Ra1 24.f4 Rd8 25.Kc2–+) 24.f4 Nc4 (24...Rd4 25.Kc2 Rfd8 26.Nb3 Bb3 27.Rb3–+) 25.Nc4 Bc4 (25...Rd8 26.Kc1 Bc4 27.Rd1–/+) 26.Kd2 (26.Kc1 Rd8–/+) 26...Rd8 27.Ke3 Ba6 (27...b5 28.Rhc1–+) 28.Rhc1–/+ c4 29.g4 (29.Bc2 Ra5–/+) 29...b5 30.h4 (better is 30.Bc2!? Ra5 31.Rb1–/+) 30...b4–+ 31.R3c2 (31.Rc4 Ra3 32.Kf2 Bc4 33.Rc4 Rd2 34.Ke1 Rb2–+) 31...Ra3 (31...Rd3 32.Kf2–+) 32.Kf2 c3 (better is 32...Rdd3 33.Rc4 Bc4 34.Rc4 Rd2 35.Ke1–+) 33.Ke1 (33.e5–+) 33...Rd4 34.Rf2 (34.Kf2 Re4 35.Kf3 Rc4–+) 34...Ra1 35.e5 (35.Rf3 c2! 36.Rc2 Rb1 37.Kf2 Re4–+) 35...b3 (better is 35...Bd3 36.e6–+) 36.Bh7 Kh7 37.Ra1 b2 38.Rb1 Rb4 39.Rc2 (39.Rfb2 cb2 40.Kd2–+) 39...Bd3 40.Kd1 Rf4 (40...Bc2?! 41.Kc2 Rf4 42.Kc3 Rg4 43.Rb2 Rh4 44.Rf2–+) 41.Rc3 0–1. Hoelldorfer,August (1855) – Fiedler,Werner (1860), 4sen.BayEM Schney, 1992.

5.Qc2 0–0 6.Nf3 Nbd7 7.d4 ed4 8.Bd4 Nc5=+.

5.Qc2 Nbd7 6.d4 0–0 7.Nf3 Re8 8.e3 a6+=.

5.Qc2 Be6 6.e3 b6 7.Nf3 a5 8.Be2 Nbd7 9.a4 0–0= 10.0–0 Nc5 11.d4+= ed4 12.Nd4 Qc8 13.Bf3+/– Rb8 14.Nc6+– Qd7 15.Nd2 Rbc8 16.Rfd1 Qe8 17.e4 Bd7 18.e5+/– Bc6? 19.Bc6 Nfd7+/– 20.ed6 Bd6 21.Nf3 Qd8 22.Re1 Re8 23.Re8 Qe8 24.Re1 Qf8? 25.g3?? Re8+/– 26.Qc3 f6 27.Bd5+= Kh8 28.Bc6 Re1 29.Ne1 Qe7 30.Bd7 Qd7 31.Qe3 Qe7 32.Nc2 Qe3–/+ 33.Ne3 Na4 34.Bc1 Nc5 35.Nd5 Nd3 36.Be3 Ne5 37.f4 Nc4 38.Bd4? Na3 39.Nc3 Kg8 40.Na4 Nb5 41.Be3 Kf7 42.Kg2 Ke6 43.Kf3 g6 44.Nb2 Nc3 45.Nc4 a4 46.Nd6 cd6 47.Bd4 Nb5 48.Ba1 a3 49.g4 d5 50.Ke3 d4 51.Kd3 f5 52.g5 Kd5 53.h4 a2 54.Kc2 Kc4 55.Kb2 d3 56.Ka2 d2 57.Be5 (57.Be5 d1Q 58.Bg7 Qc2 59.Ka1 Kb3 60.h5 Qd1#; 57.Bg7 d1Q 58.Bh8 Qc2 59.Ka1 Kb3 60.h5 Qd1#) 0–1. HeresJhonny – regie11, Caissa.com, 2004.

5.Nc3 0–0 6.e4 Nbd7 7.Nf3 (7.d4 ed4 8.Qd4 Re8+=) 7...Nc5 8.d3 (8.d4 Nce4+=) 8...Ne8 (8...a6 9.Be2+=) 9.d4 ed4 10.Qd4 Bf6 11.Qd2 (11.e5 Ne6 12.Qd1 Be7= (worse is 12...Be5 13.Ne5 de5 14.Qd8 Nd8 15.Ba3+/–)) 11...g6 (better is 11...Bc3!? 12.Qc3 Ne4–/+) 12.e5 de5 13.Qd8 Bd8 14.Ne5 (14.Ba3 Be7 15.Ne5 Bd6=) 14...Nd6 15.Nd5 Re8 16.Be2 f6 17.Ba3 Re5 (17...Nce4 18.Nf3+=) 18.Bc5= Nc4 19.f4 (19.Bd4 Re4 (worse is 19...Rd5 20.Bc4 Be6 21.Bd5 Bd5 22.0–0+=) 20.Rd1 Kf7=) 19...Re4 (better is 19...Re8 20.Kf2 Nd6 21.Bd6 cd6+=) 20.Kf2? (20.Nc3 Re8 21.0–0–0 Nb6=) 20...Nd6 (20...c6!? 21.bc6 bc6 22.Ne7 Be7 23.Be7 Ba6–/+) 21.Bf3 Rc4 22.Bd6 cd6 23.Rhe1 (23.Nf6 Kf8 24.Ne4 d5+=) 23...Kf7+= 24.Kg3 Rb8 (24...Rc5 25.Rac1+=) 25.a4 (25.Nb6! Rc7 26.Nc4=) 25...Rd4 26.a5 Be6 27.Ne3 Rb4 28.Be2 (28.a6 ba6 29.Ra6 Bb6–/+ (29...R8b5 30.Ra7 Be7 31.Nd5+–; 29...R4b5?! 30.Ra7 Kf8 31.Rh7=)) 28...h5 (28...Rc8 29.Ra3–/+) 29.Kf3 Rc8 30.g3 Rc3 31.Kf2 Rc5 32.Red1 d5 33.Rd2 (33.a6 ba6 34.f5 gf5 35.Ra6 Bb6 36.Bh5 Ke7–+) 33...Ke7 (33...d4 34.Ng2–+) 34.Ke1 Rb3 35.Kf2 Rb4 36.Ke1 d4 (better is 36...a6!? 37.Bd3 Rbb5 38.Bb5 Rb5–+ (38...ab5?! 39.Rc2 Rc7 40.Rb2=)) 37.Nc2+= Rb2 (37...Rbb5!? 38.Bb5 Rb5 39.Nd4 Ra5+=) 38.Nd4+= Rd2 39.Kd2 Bd7 40.Ke3 Kd6 41.Bd3 f5 42.h4 Bf6 43.Ra4 Rd5 44.Rb4 Be8 45.Be2 Bf7 46.Bf3 Bd4 (46...Rc5 47.Bb7 Rc7 48.a6=) 47.Rd4 Rd4 48.Kd4 Be8 (48...b6!?=) 49.Be2 ˝–˝. Holz auf der Heide – Kunze,N, Leipzig, 1999.

5.Nc3 a6 6.e4 ab5 7.cb5 d5 8.ed5 Nd5 =+.

5.Nc3 Nbd7 6.Nf3 a6 7.e4 Nc5 8.d4 ed4 =.

5.Nc3 Bg4 6.Nf3 Nbd7 7.d4 a6 8.e4 ed4 =+.

5.d3 a6 6.d4 =+.

5.d3 Bg4 6.h3 Bh5 7.g4= Bg6 8.Bg2 d5 9.Nd2 e4 10.de4 de4 11.Rc1 0–0 12.Bf6+/– Bf6 13.Ne4 Qd1 14.Rd1 Be4 15.Be4 c6 16.bc6 Nc6 17.Nf3 Bc3 18.Kf1 Rfe8 19.Rc1 Re4+= 20.Rc3 Rd8 21.e3+/– h6 22.Kg2 f6 23.Rb1 Rd7 24.a3 Ne5 25.Ne5 Re5+/– 26.Rb5 Rc7 27.Re5 fe5 28.a4 a6 29.Kf3 Kf7 30.h4 b5 31.ab5 ab5 32.c5 Ke6 33.e4 b4 34.Rb3 Rb7 35.Ke3 Kd7 36.Kd3 Kc6 37.Kc4 Rd7 38.Rd3?? Rd3–/+ 39.Kd3 Kc5 40.h5? Kb5 41.Kc2 Kc4 42.f3 Kd4 (42...Kd4 43.Kb3 Ke3–+) 0–1. mic (2130) – abosnjakovic (2395), net–chess.com, 2008.

5.d4 ed4 6.Bd4 d5 7.cd5= Qd5 8.Nc3 Qd8 9.Nf3 0–0 10.e3 Bg4 11.h3 Bh5 12.Be2 a6 13.ba6 Na6 14.0–0 Nc5 15.Qc2 Bg6 16.Qb2 Qc8 17.Ne5 Bf5 18.Bf3 c6 19.a4 Nfe4 20.Ne4+/– Ne4 21.g4 Ng5+– 22.gf5 f6 (22...f6 23.Qb3 Kh8+/–) 0–1. MarcosRamos (1735) – Gambit44 (1870), internet, 2007.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.b5).

5.g3 0–0 6.Bg2 c6 7.a4 Be6 8.d3 a6 9.bc6 Nc6 10.Nh3 Qd7 (10...d5 11.Ng5–/+) 11.Ng5+= h6 (11...d5 12.Ne6 Qe6 13.cd5 Nd5 14.0–0+=) 12.Ne6= fe6 13.Nd2 d5 14.cd5 ed5 15.0–0 Rac8 16.Qb3 Kh8 (better is 16...Na5 17.Qd1 Qe6+=) 17.Ba3?? (better is 17.Rac1=) 17...Nd4–+ 18.Qd1 Ba3 19.Ra3 (19.e3 Nc2 20.Ra2–+) 19...Nc2 (better is 19...Rc1! 20.Qc1 Ne2 21.Kh1 Nc1 22.Rc1 Ng4–+) 20.Ra2+= Nd4 21.Nf3 (21.Ra3!?=) 21...Nf3+= 22.Bf3 Rc6 Black intends e4 23.Qa1 Qf5 Black prepares e4 24.Qb1 b6 25.Bg2 Rfc8 26.Qb3 e4 27.de4 1–0. Gradisar,Metod (1805) – Gorsek,Gregor (1925), SLO–DP–PF32 ICCF, 2006.

5.g3 d5 6.cd5 Nd5 7.Bg2 Bf6 8.e4 Nb6 9.Nf3 0–0 10.0–0 Be6 11.d3 N8d7 12.a4 a6 13.Nbd2 ab5 14.ab5 Qe7 15.Qc2 Ra1 16.Ra1= Qb4 17.Rb1 Qd6 18.Ra1 h6 19.Ba3+/– c5 20.bc6 Qc6 21.Qc6 bc6 22.Bf8 Kf8 23.Rc1 c5 24.Ra1 c4 25.dc4+– Nc4 26.Nc4 Bc4 27.Bh3 Be2 28.Nd2 Bg5? 29.Ra8 Ke7 30.Nb3 Nf6 31.Nc5 Kd6 32.Nb3 Ne4 33.Rd8?? Bd8–+ 0–1. mic (2100) – amarquez (2240), net–chess.com, 2008.

5.Na3 0–0

6.e3 a6 7.d4 ed4 8.Qd4 ab5=+.

6.e3 a6 7.d4 e4 8.Be2 d5–/+.

5.Nc3 Be6

6.e3 Nbd7 7.d4 (7.Nf3 0–0 8.Ng5 Bg4+=) 7...ed4 8.ed4 (8.Qd4 0–0+=) 8...d5 (8...0–0+=) 9.c5 c6 10.a4 Qa5 11.Nf3 Ne4 12.Rc1 Bf6 13.Be2 (13.Qc2 Bg4 14.Be2 0–0=) 13...0–0 (13...Qb4 14.Ba1+=) 14.0–0= Ndc5 15.Qc2 Nd7 16.Ne4 de4 17.Bc3 Qc7 18.Qe4 Bd5 19.Qf5 Rfe8 20.Bd3 g6 21.Qh3 Re6 22.Bd2 Ree8 (22...Bf3 23.Qf3 Bd4 24.Bc4+=) 23.a5 Qd6 24.bc6 bc6 25.Bc4 Rab8 26.Bf4 Qf4 Attacks the isolani on d4 27.Bd5 (27.Qd7? Re7 (27...Bd4?! 28.Bd5 cd5 29.Nd4 Qd4 30.Rc7=) 28.Qh3 Bf3 29.gf3 Bd4–+) 27...cd5 28.Qd7 Bd4 29.Nd4 Qd4 30.Rc7 Qf4 31.Qc6 Re6 32.Qd7 (32.Qc5 Qd2+=) 32...Re2 (32...Rd6 33.Qh3 a6 34.Qe3–/+) 33.Ra7?? (better is 33.Rc8 Rc8 34.Qc8 Kg7 35.Qc5+=) 33...Rf2!!–+ (33...Rf2 34.Qf7 Qf7 35.Rf7 Rf7–+) 0–1. Casamitjana Nunez,A – Castany Pampalona,L, Pont de Vilomara, 1998.

6.e4 0–0 7.Nf3 Nbd7 8.d4 ed4 =.

6.e4 c6 7.a4 (7.Nf3 Qa5 8.Be2 0–0=) 7...Nbd7 8.Nf3 h6 (8...Nc5+=) 9.Be2 a6 10.d4 ed4 (10...ab5 11.ab5 Ra1 12.Qa1+=) 11.Nd4+/– (worse is 11.Qd4 Nc5 12.Ra3 ab5 13.cb5 d5 14.ed5 Bd5 15.Nd5 cd5=) 11...0–0 12.bc6 Nc5 (12...Qb6!? 13.cd7 Qb2=) 13.cb7+/– Nb7 14.Nc6 Qc7 15.Ne7 Qe7 16.0–0 Nc5 17.Nd5 Bd5 18.ed5 (18.cd5?! Nfe4 19.Re1 Rfe8+=) 18...Rfe8 19.Re1 Nce4 (19...Rab8!? 20.Rb1 Qb7+/–) 20.Bd3+– Qa7 21.Qc2 Nc5 22.Bf6 gf6 23.h3 Re5 24.Bf5 Qe7 25.Qd2?? (better is 25.Reb1!?+/–) 25...Re8 (25...Nb3 26.Qd1 Na1 27.Qg4 Kh8 28.Ra1 Re1 29.Re1 Qe1 30.Kh2 Qf2–/+) 26.Re5 (better is 26.Re3 Re3 27.Qe3 (27.fe3? Nb3 28.Qf2 Na1–+) 27...Qe3 28.fe3 Re3 29.Rb1+=) 26...Qe5–/+ 27.Ra3 Qf5 28.Qh6 Re1 (28...Nd3 29.Qh4 Re1 30.Kh2 Qe5 31.Qg3 Qg3 32.Kg3–/+) 29.Kh2+= Ne4 30.Rf3? (better is 30.Rb3 Qc8 31.Qh4+=) 30...Qg5 31.Qg5 fg5 (31...Ng5?! 32.Rb3= (worse is 32.Rf6 Ne4 33.Rf4 Nd2–/+)) 32.Re3 (better is 32.Rf5–+) 32...Re3 33.fe3 a5 34.g3 Nc5 35.h4 gh4 (35...Na4 36.e4–+) 36.gh4 Na4 37.Kg3 Nc5 0–1. Dijkhuizen,A – Hendriksen,C, Barneveld, 2000.

6.e4 Nbd7 7.Nf3 Nc5 8.d4 ed4 =+.

5.d4 e4

6.Nc3 a6 7.ba6 Na6 8.Qb1 d5+=.

6.Nc3 a6 7.ba6 Na6 8.e3 0–0=+.

5.Nf3 a6

6.Nc3 ab5 7.cb5 e4 8.Nd4 c5=+.

6.Nc3 ab5 7.cb5 e4 8.Nd4 d5+=.

4.b5 Bf5

5.e3 Nbd7

6.a3 A) 6...Nc5 7.d4 (7.d3 a6 8.Nc3 ab5 9.cb5 d5 10.Nf3 d4+=) 7...ed4 8.Bd4 Be7 9.Nc3 0–0 10.Nf3 a6=; B) 6...Be7 7.Nc3 (7.d3 a6 8.Nf3 0–0 9.Be2 c6 10.bc6 bc6+=; 7.Nf3 0–0 8.Be2 a6 9.0–0 ab5 10.cb5 c5+=; 7.d4 0–0 8.Nd2 ed4 9.Bd4 Nc5 10.Be2 Qd7=; 7.Be2 a6 8.Nf3 ab5 9.cb5 Nc5 10.0–0 0–0+=) 7...Be6 8.Nf3 Nb6 9.d4 ed4 10.Qd4 Nfd7=; C) 6...c6 7.Nc3 (7.Nf3 cb5 8.cb5 Rc8 9.Nc3 d5 10.Be2 Bd6+=; 7.d4 Be7 8.Nd2 a6 9.Qf3 Bg4 10.Qg3 ab5+=; 7.Be2 cb5 8.cb5 Rc8 9.Nc3 d5 10.Nf3 Bd6=; 7.a4 Be7 8.Nf3 0–0 9.Nc3 Rc8 10.d4 c5+=; 7.d3 cb5 8.cb5 Rc8 9.Nf3 Qa5 10.Qd2 Qb5–/+; 7.bc6 bc6 8.Bc3 Rb8 9.d3 d5 10.Nd2 Bd6+=) 7...Nc5 8.d3 Qa5 9.Rc1 Be7 10.Nf3 0–0=; D) 6...e4 7.d3 (7.d4 a6 8.ba6 Ra6 9.Ne2 Be7 10.Ng3 Bg6=; 7.Ne2 Bg4 8.Qc2 Nc5 9.Ng3 Qe7 10.Bf6 Qf6=; 7.Nc3 Ne5 8.Nd5 Be7 9.f4 ef3 10.Nf3 Nd5+=; 7.Be2 Nc5 8.Bd4 Ne6 9.Bb2 Be7 10.d4 ed3+=; 7.f3 d5 8.cd5 Nd5 9.Nc3 Nc3 10.Bc3 Nc5+=; 7.Bd4 Nc5 8.Nc3 Be7 9.f3 0–0 10.d3 ed3+=) 7...Ne5 8.d4 Ng6 9.Ne2 a6 10.ba6 Ra6=; E) 6...Qe7 7.d4 (7.Nf3 c6 8.Nc3 a6 9.d4 ab5 10.cb5 e4=; 7.Be2 0–0–0 8.Nf3 Nc5 9.d4 ed4 10.Nd4 Bg6=; 7.d3 0–0–0 8.Nf3 e4 9.de4 Ne4 10.Be2 Ndc5=; 7.Qf3 Be4 8.Qd1 Nc5 9.Nf3 Bd3 10.Nc3 Qe6–/+; 7.Nc3 Nc5 8.d3 Qd7 9.Nf3 0–0–0 10.Be2 Re8=; 7.f3 Be6 8.d4 ed4 9.Bd4 Nb6 10.Nd2 Nh5+=) 7...a6 8.Nd2 e4 9.Qb3 Qd8 10.Ne2 c6=; F) 6...Nb6 7.d4 (7.Be2 Be6 8.Qc2 Rc8 9.Nf3 c6 10.bc6 Rc6=; 7.Nf3 Be7 8.Be2 a6 9.ba6 ba6 10.0–0 0–0=; 7.d3 a6 8.a4 ab5 9.cb5 Ra5 10.Nf3 Qa8+=; 7.Nc3 Be6 8.d3 Be7 9.Be2 0–0 10.Bf3 Bc8=; 7.Bc3 Be6 8.d3 a6 9.ba6 Ra6 10.Nf3 Be7+=) 7...e4 8.Qc2 Qd7 9.Nd2 c6 10.bc6 Qc6=; G) 6...a6 7.d4 (7.Nf3 ab5 8.cb5 Be7 9.Be2 Nc5 10.0–0 Na4+=; 7.ba6 ba6 8.Nc3 Rb8 9.Ra2 Nc5 10.Nf3 Bd3–/+; 7.Be2 ab5 8.cb5 Nc5 9.d4 Na4 10.Qc1 Nb2+=; 7.Nc3 ab5 8.cb5 d5 9.Qf3 Bg4 10.Qg3 h5–/+) 7...ab5 8.cb5 e4 9.d5 Be7 10.Ne2 Bg4+=.

6.Na3 A) 6...Nc5 7.d4 (7.d3 c6 8.Bc3 cb5 9.Nb5 a6 10.Na3 d5–/+) 7...ed4 8.Bd4 Be7 9.Nf3 0–0 10.Be2 Nfe4+=; B) 6...e4 7.Nc2 (7.Ne2 Bg4 8.Qc2 Nc5 9.Ng3 d5 10.Rc1 Be6+=; 7.d4 d5 8.Nc2 dc4 9.Bc4 Nb6 10.Bb3 a6+=; 7.f3 Ne5 8.f4 Ned7 9.Nc2 Nc5 10.Be2 Be6–/+; 7.Be2 d5 8.Nc2 dc4 9.Nd4 Bg6 10.Bc4 Nb6+=; 7.d3 d5 8.Nc2 ed3 9.Bd3 Bd3 10.Qd3 Nc5–/+; 7.Bd4 Be7 8.f3 d5 9.Nc2 Nc5 10.Bc5 Bc5–/+) 7...Ne5 8.Nd4 Bg6 9.f4 ef3 10.Ngf3 Qe7+=; C) 6...Be7 7.Be2 (7.d4 0–0 8.Ne2 c5 9.Ng3 Bg6 10.Bd3 Qa5–/+; 7.Nf3 a6 8.Be2 ab5 9.Nb5 c6 10.Nc3 Qb6+=; 7.Qf3 Be4 8.Qg3 Bg6 9.Nf3 Nc5 10.d4 ed4–/+; 7.h3 a6 8.d4 ab5 9.Nb5 c6 10.de5 de5+=; 7.d3 d5 8.Nc2 c6 9.cd5 Qa5 10.Qd2 Qb5–/+) 7...0–0 8.Nf3 a6 9.0–0 ab5 10.Nb5 Nc5+=; D) 6...c5 7.Ne2 (7.Be2 Be7 8.Bf3 e4 9.g4 Be6 10.Bg2 Bg4–/+; 7.Nf3 e4 8.Qc2 Be7 9.Rc1 a6 10.Bc3 0–0–/+; 7.f3 Be7 8.Kf2 0–0 9.e4 Be6 10.Ne2 a6–/+; 7.Qf3 Be4 8.Qg3 Bg6 9.Nf3 Qa5 10.Qh3 Qb4+=; 7.f4 Be7 8.Nf3 ef4 9.ef4 Ne4 10.Qb3 0–0+=; 7.Bc3 Ne4 8.Qf3 Bg6 9.Nb1 a6 10.d3 Nc3+=) 7...Be7 8.Ng3 Bg6 9.Be2 h5 10.0–0 h4=; E) 6...d5 7.Nf3 (7.cd5 Nd5 8.Nf3 Bg4 9.Qc2 Bf3 10.gf3 Rc8+=) 7...Be6 8.Qc2 h6 9.Rc1 Ba3 10.Ba3 dc4=; F) 6...Qe7 7.Nf3 (7.Be2 d5 8.Nf3 Qb4 9.Qc1 Bg4 10.Nc2 Qa4+=; 7.d4 d5 8.Nc2 dc4 9.Rc1 Nb6 10.de5 Rd8+=; 7.Nc2 Nc5 8.d4 Na4 9.Rb1 Nb2 10.Rb2 0–0–0+=; 7.Rc1 0–0–0 8.d4 ed4 9.Qd4 Kb8 10.Rd1 d5+=; 7.Ne2 Nc5 8.Ng3 Bd3 9.Be2 h5 10.h4 g6–/+) 7...0–0–0 8.Be2 Nc5 9.0–0 Bd3 10.Ne1 Be2=; G) 6...a6 7.Nf3 (7.d4 ab5 8.Nb5 Be7 9.Qf3 Be4 10.Qd1 0–0+=; 7.ba6 ba6 8.Qa4 Rb8 9.Bc3 Ne4 10.Ba5 Qh4–/+; 7.Be2 d5 8.cd5 Ba3 9.Ba3 ab5 10.Bb2 Nd5–/+) 7...Be7 8.Be2 ab5 9.Nb5 c6 10.Nc3 Qb6+=.

6.Nc3 A) 6...e4 7.d4 (7.d3 Ne5 8.d4 Nd3 9.Bd3 ed3 10.f3 d5=; 7.f3 Ne5 8.Kf2 a6 9.a4 Be7 10.a5 0–0+=; 7.Nge2 a6 8.Ng3 Bg6 9.h4 h6 10.h5 Bh7=; 7.Nd5 Be7 8.Ne2 Nd5 9.cd5 Bf6 10.Nd4 Bg6=; 7.Qc2 Ne5 8.f3 a6 9.ba6 Ra6 10.c5 Ra5+=; 7.Nce2 Ne5 8.Nd4 Bd7 9.f4 Ng6 10.Nge2 Bg4=) 7...Be7 8.Nge2 c6 9.Ng3 Bg6 10.h4 h6=; B) 6...Nc5 7.d4 (7.d3 Be7 8.Be2 0–0 9.Nf3 a6 10.d4 ed4=; 7.Nf3 Nd3 8.Bd3 Bd3 9.Qb3 Nd7 10.Na4 e4–/+) 7...ed4 8.Qd4 Be6 9.Nf3 a6 10.Be2 Be7=.

6.d3 Be7 (6...a6!?+= 7.a4 (7.Qf3 Be6 8.ba6 Ra6 9.Nc3 c6 10.d4 Qa5+=; 7.d4 ab5 8.cb5 Be7 9.Nc3 d5 10.de5 Ne5+=; 7.Nf3 ab5 8.cb5 c6 9.Nc3 cb5 10.Nb5 Qa5+=; 7.Be2 ab5 8.cb5 d5 9.Nf3 Bb4 10.Nc3 Qe7+=; 7.ba6 Ra6 8.Nf3 Be7 9.Be2 0–0 10.0–0 Nb6+=) 7...d5 8.cd5 Bb4 9.Nd2 ab5 10.ab5 Ra1=; 6...d5 7.cd5 (7.Nd2 dc4 8.d4 Nb6 9.de5 Ne4 10.Ne4 Be4+=; 7.Nf3 dc4 8.dc4 Bb4 9.Bc3 Qe7 10.Bb4 Qb4+=) 7...Bd6 8.e4 Bg6 9.Nf3 0–0 10.Be2 c6+=; 6...Nc5 7.Nc3 (7.Be2 a6 8.d4 Ncd7 9.ba6 ba6 10.Nf3 Rb8=; 7.Nf3 a6 8.d4 ed4 9.Bd4 Be7 10.Be2 0–0=) 7...Be7 8.Be2 a6 9.Nf3 ab5 10.cb5 0–0=; 6...Nb6 7.a4 (7.Be2 a6 8.a4 ab5 9.cb5 Ra5 10.Bc3 Ra7=; 7.Nd2 Be7 8.Ngf3 a6 9.c5 dc5 10.ba6 Ra6=; 7.Nc3 a6 8.Nf3 ab5 9.cb5 Be7 10.Be2 0–0=; 7.Qf3 Qc8 8.Qd1 Be7 9.Nf3 0–0 10.Be2 a6+=; 7.a3 a6 8.a4 ab5 9.cb5 Be7 10.a5 Nbd7+=; 7.Nf3 a6 8.a4 Be7 9.a5 Nbd7 10.Be2 0–0=) 7...Be6 8.Nf3 a6 9.Ng5 Bg4 10.Be2 Be2=; 6...Be6 7.Be2 (7.d4 Be7 8.Be2 0–0 9.Nf3 e4 10.Nfd2 c6=; 7.Nf3 a6 8.Ng5 Bg4 9.Be2 Be2 10.Qe2 ab5+=) 7...Be7 8.Nf3 a6 9.a4 ab5 10.ab5 0–0=; 6...Rb8 7.Nf3 (7.Be2 c6 8.Nc3 cb5 9.cb5 d5 10.Nf3 Bd6=) 7...Be7 8.Be2 c6 9.Nc3 cb5 10.cb5 Rc8=) 7.Qf3+= Bg6 8.Qb7 0–0 9.Nc3 (9.Qf3!?= c6 10.bc6 Nc5=) 9...Nc5+= 10.Qf3 (10.Qc6 Bd3+=) 10...Nd3 11.Bd3 Bd3 12.Nd5 (better is 12.Qc6!?–/+) 12...Bc4–+ 13.Nf6 Bf6 14.a4?? (14.Qc6 d5 15.Nf3 Qe7–+) 14...Qe7 (better is 14...e4 15.Qe4 Bb2–+) 15.Rc1 (15.Qc6 Qe6 16.e4 a6–+) 15...Bb3 (15...d5 16.Bc3–+) 16.Qb7 (16.Qc6 Qe6 (16...Ba4?! 17.Qc4+=) 17.Ne2 Bd5–+) 16...Rfc8 17.Rc3 (17.Ne2 Ba4 18.Nc3 Bb3–+) 17...Be6 (17...Qe6 18.Ne2 Bd5 19.Qa6 Bg2 20.Rg1–+) 18.e4 Qd7 (18...a6 19.b6 Rab8 20.Qa6 Rb6 21.Qe2–+) 19.Nf3 (19.Ne2 a6! 20.Qc6 ab5 21.ab5 Rab8–+) 19...Rab8 (19...a6 20.Rc6 ab5 21.ab5–+) 20.Qc6 (20.Qa6 d5 21.Rc2 Qd6 22.Qa7 de4–+) 20...Qe7 (20...a6 21.Qa6 Ra8 22.Qc6 Ra4 23.Kd2–+) 21.Qa6–/+ Qd7 (21...c5!? 22.0–0 Rb6–+) 22.0–0 (22.Qc6 Qd8 23.Rd3 Rb6–+) 22...Ra8 23.Rc6 Qe8 24.Rfc1 Bd8 25.Qb7 (better is 25.Ba1!?+=) 25...Rcb8–+ 26.Qa6 Qe7 (26...Bc8 27.Qa5–+) 27.Ba3 (27.Qa5 Bc8–/+) 27...Bd7 28.Rd6 (better is 28.R6c3!?–/+) 28...cd6–+ 29.Bd6 Qe6 30.Bb8 Qa6 (30...Rb8?! 31.Qa7 Rc8 32.Rc8 Bc8 33.Qa8+=) 31.ba6 Rb8 32.Ne5 Ba4 33.f4 (33.f3 Bg5 34.Rc3 Bd2–+) 33...f6 (33...Bb6 34.Kh1–+) 34.Nc6 Bc6 (better is 34...Bb6!? 35.Kh1 Re8 36.e5–+) 35.Rc6 Rb1 36.Kf2 Bb6 37.Kg3 Ra1 38.Rc8 Kf7 39.f5 Ra6 40.Rc6 (40.Kf3–+) 40...Bf2! 41.Kf2 Rc6 0–1. Pruvost,Alain – Chapeau,Marianne, Feignies op, 2000.

6.d4 A) 6...Be7 7.Nf3 (7.Be2 a6 8.Nf3 ab5 9.de5 de5 10.cb5 Bb4+=; 7.Ne2 0–0 8.Ng3 Bg6 9.Be2 a6 10.0–0 ab5=; 7.Nc3 ed4 8.ed4 d5 9.a3 0–0 10.Nd5 Nd5–/+; 7.Nd2 ed4 8.Bd4 Nc5 9.Ngf3 a6 10.Be2 0–0=; 7.Qf3 Be4 8.Qg3 ed4 9.Bd4 Bg6 10.Nc3 c6+=) 7...e4 8.Qc2 c6 9.Nc3 Rc8 10.bc6 bc6=; B) 6...e4 7.Nd2 (7.Be2 d5 8.Nc3 dc4 9.g4 Bg6 10.h4 h6+=; 7.Nc3 d5 8.Nge2 c6 9.Ng3 Be6 10.bc6 bc6=; 7.Qc2 d5 8.Ne2 Bb4 9.Nec3 dc4 10.Bc4 Nb6=; 7.Ne2 c6 8.Ng3 Bg4 9.f3 ef3 10.gf3 Be6=; 7.Qb3 Nb6 8.Nc3 a6 9.ba6 ba6 10.Rb1 Rb8=) 7...a6 8.ba6 Ra6 9.Ne2 c6 10.Ng3 Bg6=; C) 6...a6 7.Nc3 (7.ba6 ba6 8.Ne2 Rb8 9.Ng3 Rb2 10.Nf5 Ne4–/+; 7.Nd2 ab5 8.de5 de5 9.cb5 Bd6 10.a3 e4+=; 7.Qb3 ab5 8.Qb5 Ra6 9.c5 dc5 10.de5 Rb6–/+; 7.Ne2 ab5 8.cb5 Be7 9.Nbc3 Nb6 10.Ng3 Be6+=; 7.a3 Be7 8.ba6 Ra6 9.Nf3 e4 10.Qc2 0–0+=; 7.f3 ed4 8.ba6 Ra6 9.Bd4 Be7 10.g4 Bg6+=) 7...ed4 8.Qd4 ab5 9.cb5 Be7 10.Nf3 Nc5=; D) 6...Qe7 7.Nf3 (7.Ne2 0–0–0 8.Ng3 Bg6 9.Bd3 e4 10.Be2 h5=; 7.Nd2 0–0–0 8.Ne2 Bg6 9.Qa4 Kb8 10.Qa5 Re8+=; 7.Be2 0–0–0 8.Nf3 Kb8 9.0–0 h6 10.Nc3 g5=; 7.Nc3 ed4 8.Qd4 Qd8 9.Nf3 Be7 10.Be2 Nc5=; 7.Bd3 Bd3 8.Qd3 ed4 9.Qd4 Ne5 10.Ne2 a6=; 7.a3 a6 8.Nd2 ed4 9.Bd4 ab5 10.Qf3 Be4+=) 7...e4 8.Nfd2 Nb6 9.Be2 0–0–0 10.a4 Nbd7+=; E) 6...ed4 7.Bd4 Nc5 8.Nf3 Be7 9.Be2 0–0 10.0–0 Re8=.

6.Be2 A) 6...a6 7.ba6 (7.d4 ab5 8.cb5 Be7 9.de5 de5 10.Nf3 Bb4+=; 7.Nf3 ab5 8.cb5 Be7 9.0–0 0–0 10.d3 c5+=; 7.Nc3 ab5 8.cb5 d5 9.Nf3 Bd6 10.0–0 0–0+=) 7...Ra6 8.Nf3 Nc5 9.0–0 Nd3 10.Qc2 e4+=; B) 6...d5 7.Nf3 (7.d4 dc4 8.de5 Bb4 9.Kf1 Ne4 10.Qc1 Ndc5–/+; 7.cd5 Nd5 8.Nf3 Bd6 9.d3 Be6 10.Nbd2 0–0=) 7...dc4 8.Ne5 Ne5 9.Be5 Be6 10.0–0 Bd6=; C) 6...Nb6 7.a4 (7.Nf3 a6 8.ba6 ba6 9.0–0 Rb8 10.Bc3 Ne4=; 7.Nc3 Be6 8.d3 d5 9.cd5 Nfd5 10.a3 Nc3=; 7.d4 ed4 8.Bd4 Be7 9.Nf3 c5 10.bc6 bc6=) 7...Be6 8.Qc2 a6 9.ba6 ba6 10.Nf3 Rb8=; D) 6...c5 7.d4 (7.d3 a6 8.Nc3 Be7 9.g4 Be6 10.f4 Nb6=; 7.Nc3 Be7 8.d3 Qa5 9.Bf3 e4 10.Be4 Ne4=; 7.Nf3 e4 8.Nh4 Be6 9.f4 Nb6 10.Qc2 d5+=) 7...Be7 8.Nf3 ed4 9.ed4 0–0 10.0–0 a6=; E) 6...Qe7 7.d4 (7.Nf3 a6 8.0–0 ab5 9.cb5 d5 10.a4 Bg4=; 7.Nc3 Nc5 8.d3 0–0–0 9.e4 Bd7 10.Nf3 g5=; 7.d3 a6 8.Nf3 ab5 9.cb5 d5 10.0–0 Qe6+=; 7.a3 a6 8.Nf3 ab5 9.cb5 Nc5 10.d4 Na4=) 7...ed4 8.Bd4 Nc5 9.Nf3 0–0–0 10.Nc3 Qe6=; F) 6...e4 7.d3 (7.d4 d5 8.Nc3 Bb4 9.a3 Ba5 10.c5 Rb8+=; 7.g4 Bg6 8.h4 h6 9.Nc3 Be7 10.Nh3 Ne5=; 7.Bd4 Nc5 8.Nc3 Ne6 9.Bf6 Qf6 10.Nd5 Qb2+=; 7.Nc3 Ne5 8.Nd5 Nd5 9.cd5 Be7 10.Rc1 Bf6+=; 7.a4 Nc5 8.Nc3 Nfd7 9.f4 ef3 10.Nf3 Nd3+=) 7...Nc5 8.de4 Nfe4 9.Nf3 Be7 10.0–0 Bf6=; G) 6...c6 7.Nc3 (7.Nf3 cb5 8.cb5 Rc8 9.Nc3 d5 10.Rc1 Bd6+=; 7.d4 cb5 8.cb5 Rc8 9.Nc3 Ne4 10.Ne4 Be4+=) 7...cb5 8.cb5 Be7 9.Nf3 0–0 10.0–0 d5=.

6.Nf3 a6 7.a4 (7.ba6 Ra6 8.Be2 Be7 9.d4 Rb6 10.Qc1 0–0=; 7.Nc3 ab5 8.cb5 d5 9.Be2 Bd6 10.0–0 0–0+=; 7.Be2 ab5 8.cb5 Be7 9.0–0 0–0 10.a4 Be6+=; 7.a3 ab5 8.cb5 Be7 9.Be2 Nb6 10.Nc3 0–0=) 7...Be7 8.Be2 0–0 9.0–0 Re8 10.d4 ab5=.

6.Nf3 c6 7.d4 (7.Nc3 Be7 8.Be2 cb5 9.cb5 Rc8 10.0–0 Qa5=; 7.Be2 cb5 8.cb5 Rc8 9.0–0 Bc2 10.Qc1 e4=) 7...cb5 8.cb5 Rc8 9.Nc3 e4 10.Nd2 d5=.

6.Nf3 Rc8 7.Be2 (7.Nc3 c6 8.d4 cb5 9.Nb5 a6 10.Nc3 Be7=) 7...c6 8.a4 Be7 9.0–0 0–0 10.Na3 Qb6=.

6.Nf3 Be6 7.Qc2 (7.Nc3 Nb6 8.d4 ed4 9.Qd4 Nfd7 10.Be2 Be7=; 7.Ng5 Bg4 8.Be2 Be2 9.Qe2 Qe7 10.0–0 h6=; 7.Be2 a6 8.ba6 Ra6 9.0–0 Nb6 10.c5 Nc4=; 7.d4 e4 8.Nfd2 c6 9.Nc3 d5 10.Rb1 Bb4=; 7.d3 Be7 8.Ng5 Bg4 9.Be2 Be2 10.Qe2 a6=; 7.a3 Be7 8.d4 e4 9.Nfd2 c6 10.d5 cd5=) 7...Bg4 8.d4 Qe7 9.Nbd2 Bf3 10.Nf3 e4+=.

6.Nf3 Qe7 7.d4 (7.Nc3 a6 8.d4 e4 9.Nh4 Be6 10.Qc2 Nb6=; 7.d3 a6 8.Be2 ab5 9.cb5 d5 10.0–0 Qe6+=; 7.Be2 a6 8.Nc3 ab5 9.Nb5 Qd8 10.0–0 c6=; 7.a3 c6 8.Nc3 a6 9.d4 ab5 10.cb5 e4=) 7...0–0–0 8.Be2 Kb8 9.0–0 h5 10.Nc3 h4=.

6.Nf3 Be7 7.d4 e4 8.Qc2 c6 9.Nc3 Qa5 10.Nh4 Be6=.

6.Nf3 Be7 7.Be2 0–0 8.d4 e4 9.Nfd2 d5 10.c5 c6 11.a4 Re8?? (11...Qc7 12.bc6 bc6 13.Nc3+=) 12.Nc3 (better is 12.g4 Be6 13.g5+/–) 12...Nf8 13.Qb3 Rb8 14.a5 h5 (14...a6 15.b6=) 15.Qc2 Qd7 16.a6 ba6 17.bc6 Qc6 18.Ra6 Qb7 19.Na4 (better is 19.Ba1!?+/–) 19...Bg4= 20.f3 ef3 21.gf3 Bf5?? (21...Bc8 22.Qc3 Bd8–/+) 22.Qf5+– g6 23.Qd3 Ne6 24.Kf2 (24.Re6 fe6 25.Qg6 Kf8+–) 24...Qc8 (24...Nc7 25.Ra5+–) 25.Bc3 (25.Ra7 Nd8 26.Ra6 Qh3+–) 25...Ng5 26.Ra7 Qh3 27.Bf1 Qh4 28.Ke2 Nfe4 (28...Nge4 29.fe4 Ng4 30.Re7 Re7 A) 31.ed5 Qf2 32.Kd1 Ne3 33.Qe3 Re3–/+ (33...Qe3?! 34.Bc4+=); B) 31.Nb6 Qf2 32.Kd1 Ne3 33.Qe3 Qe3 34.Nd5+–) 29.fe4 Qg4 30.Ke1 Ne4 (30...Nh3 31.Re7! Qh4 32.Ke2 Qg4 33.Nf3 Re7 34.Bh3 Qh3 35.Ne1+–) 31.Ne4 de4 32.Qc2 (better is 32.Qe2 Qh4 33.Kd1+–) 32...Bh4 33.Kd2 Rbd8?? (33...Qf3 34.Rf7! Kf7+–) 34.Be2 Qg5 (34...Qh3 35.Qb3 Re6 36.Rf1+–) 35.Rf1 f5 (35...Re7 36.Re7 Qe7 37.Bc4+–) 36.Nb6 (better is 36.Qb3 Rd5 37.Qd5 Kh8 38.Qf7 Qe3 39.Ke3 f4 40.Kd2 e3 41.Kd1 Be7 42.d5 Bf6 43.Qe8) 36...f4 (36...Re7 37.Qa2 Kh7+–) 37.Rf4 (37.Qb3 Rd5 38.Nd5 Kh8 39.Nf4 Be1 40.Ke1 Qh4 41.Kd2 Qg5 42.Qf7 Re7 43.d5 Qe5 44.Ng6) 37...Be1 38.Ke1 (38.Ke1 Qf4 39.ef4+–) 1–0. Toll,Anatoly – Fiori,Nicolas, Dos Hermanas Internet qual–D, 2009.

6.Nf3 Be7 7.Be2 a6 8.0–0 ab5 9.cb5 0–0 10.d3 Re8+=.

6.Nf3 Bg4 7.Nc3 (7.Be2 e4 8.Bf6 Nf6 9.Nd4 Bd7 10.d3 a6=; 7.d3 d5 8.cd5 Nd5 9.Be2 Bd6 10.0–0 a6=; 7.h3 Bh5 8.d3 a6 9.g4 Bg6 10.Nc3 ab5+=; 7.Qc2 Bf3 8.gf3 Qe7 9.Nc3 0–0–0 10.Bh3 Kb8=; 7.d4 e4 8.h3 Bh5 9.g4 Ng4 10.hg4 Bg4+=) 7...Nc5 8.Nd5 Nd5 9.cd5 Be7 10.d4 Bf3=.

5.Nf3 Be7

6.Nc3 0–0 7.e3 h6 (7...a6 8.Be2+=) 8.Be2 Nbd7 9.h3 Nc5 (9...a6 10.0–0+=) 10.d4= ed4 11.Qd4 Ne6 12.Qd1 Re8 13.Nd4 Bg6 14.Bf3 Rb8 15.Ne6 fe6 16.Qd4 a6 17.Rd1 ab5 18.Nb5 e5 19.Qa7? (better is 19.Qd2+=) 19...Ra8?? (better is 19...c6 20.Nc3 Ra8 21.Qb7 Rb8 22.Qc6 Rb6–+) 20.Qb7+= Ra2 (20...e4!? 21.Be2 Rb8+=) 21.Be5+/– de5 22.Rd8 Bb4 23.Kf1 Rd8 24.Kg1 (24.Nc7?? Ra1 25.Bd1 Rad1 26.Ke2 R8d2 27.Kf3 Be4 28.Qe4 Rf2 29.Kf2 Ne4 30.Kf3 Ng5 31.Ke2 Rh1–+; 24.Qc7 Ra1 25.Bd1 Rdd1 26.Ke2 Rd2 27.Kf3 Rh1 28.Qe5 Be4 29.Kg3 Rg1 30.Qe6 Kh7–+) 24...e4 25.Bg4 Ng4 26.hg4 Rdd2 27.Qc7 Rf2 28.Qg3 (28.Kh2!?+/–) 28...Rfc2+= 29.g5 h5 30.Kh2 Rc4 31.Rb1 Bf8 (31...Rd2 32.Nd4 Kh7 33.Qe5+/–) 32.Nd4 Kh7 (32...Rc8 33.Rb6 Bf7 34.g6+–) 33.Qb8 (33.Ne6 Rc8+/–) 33...Bc5+= 34.Qb3 (34.Qe5 Bd4 35.ed4 Rcc2+/–) 34...Raa4= 35.Nc2 Be7 36.Qb5 Bg5?? (better is 36...Bd6 37.Kg1 h4=) 37.Qg5+– Rc2 (37...Ra6 38.Rb7 Rc8+–) 38.Rb6 Be8 39.Qf5 Kg8 40.Rb8 1–0. Althoff,Guntram (2140) – Gertz,Berthold (2015), Hessen–ch VM, 2004.

6.e3 0–0 7.Be2 Nbd7 (7...a6 8.0–0=+) 8.d4 ed4 (8...Re8 9.0–0=) 9.ed4 (9.Nd4 Bg6=) 9...a6 10.0–0 (10.ba6 ba6 11.d5 Rb8=+) 10...ab5 11.cb5 d5 12.Nc3 Bd6 13.a4 Re8 14.Qb3 Rc8 15.Rae1 c6=+ 16.Bd1 Ne4 17.Bc2 Ndf6 18.Re2 Bg6 19.Rfe1= Ra8 20.Na2 Bf5 21.Nc1 Rc8 22.Nd3= h5 23.Nfe5+= h4 24.f3 Ng5 25.Nc5 Bc2= 26.Qc2 b6? 27.Nb7+– Qe7 28.bc6 Bb4+/– 29.Nd3 Be1? 30.Re7+– Re7 31.Qc1 Nf3 32.gf3 Ba5 33.Nd6 Rcc7 34.Ne5 Re6 35.Ndf7 Rc8 36.Qg5 Rc7 37.Nh6 Kf8 38.Ba3 Ke8 39.Qf5 Rec6 40.Ng8! Rc1 41.Kg2 Nd7 42.Qf7 Kd8 43.Bc1 Rc2 44.Kh3 Ne5 45.Bg5 Kc8 46.de5 Kb8 47.e6 Be1 48.Qd7 b5 49.ab5 Bb4 50.b6 Bd2 51.Qa7 Kc8 52.Qa8# 1–0. NN – PowerChess5 6, WA October, 1993.

6.e3 a6 7.d4 e4 8.Qc2=+.

4.b5 g6

5.a4 Be6 6.e3 Bg7 7.Nc3 0–0 8.h3 c5 9.e4 Nbd7 10.a5 Ne8 11.d3 f5 12.h4 (12.Nf3 Nc7=) 12...Nef6 (12...a6 13.b6+=) 13.Nf3 (13.h5 g5=) 13...fe4 (13...h6!?+=) 14.de4= Bg4 (14...Qe7!?=) 15.Qd6+/– Ne8 (better is 15...Bf3!? 16.gf3 Kh8+/–) 16.Qd5+– Kh8 17.Ng5 Qf6 (better is 17...Qe7+–) 18.f3 Bh6 (18...Rb8+–) 19.fg4 (better is 19.Ne2+–) 19...Qf2= 20.Kd1 Qb2 21.Rc1 Bg5 22.hg5 Rd8 23.Bd3 (better is 23.Rc2 Qb3 24.Bd3=) 23...Nc7 24.Qb7 Nb8 (24...Qg2?! 25.Qc7 Qh1 26.Kc2+=) 25.Nd5 Qg2 (25...Rf2 26.Rh7 Kh7 27.Qc7 Nd7 28.Nf6 Kg7 29.Qd7 Rd7 30.Ne8 Kf8 31.Rc2 Qc2 32.Ke1 Qd2) 26.Re1?? (26.Rh7 Kh7 27.Qc7 Rd7 28.Qc5= (28.Qe5?? Rf2 29.Nf6 Rf6 30.Qe7 Rf7 31.Qf7 Rf7–+)) 26...Nd5 (better is 26...Rd7!? 27.Qa7 Nd5 28.Qd7 Nd7 29.ed5 Qg4 30.Be2 Qd4 (30...Qg5?! 31.Rc3–+) 31.Kc2 Rf2–+) 27.ed5+= Rd7 28.Qa8 Qg4 29.Kc2 Rdf7 30.d6 (30.Re5? Rf2 31.Kb3 Qd4–+) 30...Qd4 (30...Rf2!? 31.Kb3 Qd4+=) 31.Qd5 Rf2 32.Re2 Re2 33.Be2 Rf2 (33...Qe3 34.Re1 Nd7= (worse is 34...Qg5 35.Qc5 a6 36.Rf1+–)) 34.Qd4+/– ed4 35.Kd3 Rg2 (35...Nd7 36.Re1 Ne5 37.Ke4 Rf5+/–) 36.Rf1 (better is 36.Re1!? Rg3 37.Kd2+–) 36...Kg7 (36...Nd7!? 37.b6 ab6+=) 37.Bf3 Rg3 38.b6 ab6 (better is 38...a6!?+/–) 39.a6!+– (39.ab6?! Rg5 40.Bd5 Rf5+=) 39...Nc6? (39...Na6 40.d7 Passed pawn) 40.Ke2 d3 41.Kd2 Ne5 42.Bd5 Rg5 (42...Rh3 43.Rf2 Rg3 44.a7+–) 43.a7 1–0. Anderson,George – Reimer,Bruce, Winnipeg Easter op, 2004.

5.Nc3 Bg7

6.Rc1 Nbd7 7.e3 0–0 8.Be2 e4 9.Qc2 Nc5 10.d4 ed3 11.Bd3 Nd3 12.Qd3 Nd7 13.Nge2 (13.Nf3!?+=) 13...Ne5–/+ 14.Qc2 Nc4 15.Na4 Nb2 16.Nb2 Qg5 17.Nf4 Qb5 18.Nbd3 Bf5 19.0–0 g5 20.Rb1 (20.a4 Qa6 21.g4 Bg4–+ (21...gf4?! 22.gf5 fe3 23.fe3–+)) 20...Qa6 (better is 20...Qc6 21.Qc6 bc6 22.g4 Bg4 23.f3 gf4 24.fg4 fe3 25.Rb7–+) 21.Qc7 (21.g4 Bg4 22.Nd5–+) 21...gf4 (21...Bd3?! 22.Nd3 Rfc8 23.Qd7 Qd3 24.Rb7–+) 22.Nb4 Qb6 23.Qb6 ab6 24.Rbd1 Rfd8 25.Nd5 (25.ef4 Be6–+) 25...Be6 26.Nb6 (26.Nf4 Ra2 27.Rb1 Bc4–+) 26...Ra2 27.Nd5 b5 (27...fe3 28.fe3 Be5 29.e4–+) 28.Nc7 (28.e4 h6–+) 28...b4 (28...Bc4 29.e4–+) 29.Rb1 Bc4 30.Rfc1 Bc3 (30...Bc3 31.e4 Bd3–+) 0–1. Meybohm,Dirk – Niering,M, 1988.

6.e3 0–0 7.Nf3 a6 (7...e4 8.Nd4+=) 8.a4 (8.d4 ed4 9.Nd4 ab5 10.cb5 Bg4=) 8...h6 9.Be2 Re8 (9...e4 10.Nd4+=) 10.0–0= a5 11.h3 Nbd7 12.Re1 (12.d4 ed4 13.ed4 d5+=) 12...e4 13.Nd4 Nc5 14.d3 ed3 15.Bd3 Nd3 16.Qd3 Nd7 17.Rad1 Ne5 18.Qc2 (18.Qe2=) 18...f5 (18...Nc4!? 19.Nd5 Nb2 20.Qb2 Bh3 21.Nc7 Qc7 22.gh3 Qc5–/+) 19.Nce2 Qe7 20.Rc1 Rf8 (20...Be6 21.Ne6 Qe6 22.Nf4=) 21.Red1 b6 22.Qb3 Qf7 23.Qc2 g5 24.f3 (24.f4 Ng6+=) 24...g4 (24...Qh5 25.Ng3 Qg6 26.e4 fe4 27.fe4=) 25.fg4 (25.f4 Ng6=) 25...fg4= 26.Rf1 Qe7 27.Rf8 Bf8 28.Nf5 Bf5 (28...Qg5 29.hg4 Bf5 30.gf5 (worse is 30.Qf5 Qe3 31.Kf1 Re8–/+) 30...Qe3 31.Kh1+=) 29.Qf5+= Bg7 30.Be5 (worse is 30.hg4 Rf8 31.Qe4 Qe6+=) 30...Rf8 (30...Qe5 31.Qg4 Qe3 32.Kh2=) 31.Qg4 Qe5 32.Qg3 Qb2 33.Qg4 (33.Re1 Qc2 34.Nf4 Qc4=) 33...Qd2 (33...Qe5!?=) 34.e4+/– Kh8 35.Kh1 Rf2 36.Rg1 (36.Qc8 Kh7–+) 36...Qe2 (36...Re2 37.Qc8 Kh7 38.Qf5 Kg8 39.Qe6 Kf8 40.Rf1 Rf2 41.Rf2 Qf2 42.Qc8 Kf7 43.Qc7 Kg8 44.Qd6 Qf1 45.Kh2 Qc4 46.Qd5 Qd5 47.ed5 Be5 48.Kg1–/+) 37.Qc8–/+ Kh7 38.Qc7 Rf1 (38...Qe4 39.Qb6 Qc2 40.Qe3–/+) 39.Qd6? (39.Qb6 Rg1 (39...Qc4?! 40.Qd6 Rf6 41.Qe7+=) 40.Qg1 Qc4–+) 39...Rg1–/+ (39...Qc4?! 40.Rf1 Qf1 41.Kh2–/+) 40.Kg1 Qe1 41.Kh2–/+ Qe4 42.Qb6 Be5 43.Kh1 Qc4 44.Qb7? (44.Qa7 Qc7 45.b6 Qg7 46.Qa5 Qg3–/+) 44...Kg6 (better is 44...Bg7!?–+) 45.Qc6 Qc6 46.bc6 Kf6 (46...Kf6 47.g4 Ke6–+) 0–1. Datkiewicz,P – Marszalek,Maciej, POL–ch U14 Zamosc POL, 1999.

5.e3 Bg7

6.Be2 Nbd7 7.Qc2 0–0 8.Nf3 c6 (8...e4 9.Nd4=) 9.d4 Qc7 0–1. Krivoshapko,Alexander – Gedyk,Dmitry, Final Omsk, 2008.

6.Nf3 0–0 7.Be2 e4 8.Nd4 Re8 9.d3 c5 10.bc6 Nc6 11.Nc2 d5 12.cd5 Qd5 13.0–0 Qg5 14.d4 Bh3 15.g3? Bf1–+ 16.Bf1 Rad8 17.Bg2 Ne5 18.Qe2 Nd3 19.Ba3 Ng4 20.h4 Qa5?? 21.Nd2?? Ngf2 22.Ne4 Ne4 23.Be4 Re4 24.Qd3 Rg4 25.Kg2 h5 26.Bb4 Qd5 27.Kh2 a5 28.Be7 Rd7 29.Bg5 Be5 30.Bf4 Bf4 31.ef4 b5 32.Re1? b4 33.Ne3?? Qa2 34.Re2 Qa3 (35.Qa3 ba3–/+; 34...Rd4 35.Ng4 Rd3 36.Nf6 Kg7 37.Ne8 Kf8 38.Ra2 Ra3–+ (38...Ke8?! 39.Ra5 b3 40.Rb5–+)) 0–1. stoker – PrinceMyshkin, Live Game Caissa's Web, 2004.

6.Nf3 c6 7.Be2 (7.d4 e4 8.Nfd2 0–0=) 7...0–0 (7...cb5 8.cb5 0–0 9.0–0=) 8.Nc3 (8.d4 e4 9.Nfd2 cb5 10.cb5 Be6=) 8...Be6 (8...cb5 9.cb5 e4 10.Nd4+=) 9.d4= e4 10.Nd2 d5 11.a4 a6 12.0–0 Qd7 (12...dc4 13.ba6 b6 14.Nde4 Ne4 15.Ne4 Na6 16.Nd2=) 13.h3 (13.c5!?+=) 13...ab5= 14.ab5 Ra1 15.Ba1 h5 (15...dc4 16.b6=) 16.f3 (better is 16.c5+=) 16...Bh3? (better is 16...ef3 17.Bf3 dc4=) 17.gh3+– Qh3 18.fe4?? (better is 18.c5!?+–) 18...Qe3 (better is 18...Qg3!? 19.Kh1 Qh3 20.Kg1 Qg3 21.Kh1 Qh3 22.Kg1=) 19.Kg2 Ne4 20.Nde4 de4 21.Na4 Qg5 22.Kh3 (22.Kh2+=) 22...Bf6 (better is 22...cb5 23.cb5 f5+=) 23.Rf6?? (better is 23.Nc5+/–) 23...Qf6+= 24.Bh5?? (better is 24.Nc5+=) 24...gh5–+ 25.Qg1 (25.Nc5 Qf5 26.Kh2 Qf4 27.Kh1 Qh4 28.Kg1 Kh7–+) 25...Kh7 (25...Qg6 26.Qg6 fg6 27.Nc5 Rf3 28.Kh4–+) 26.d5 Qf3 27.Qg3 Qf5 (better is 27...Qh1 28.Qh2 Qa1–+) 28.Kh2 Threatening mate... how? 28...Rg8 29.Qh3 (29.Qe5 Qf2 30.Kh3 Qg2 31.Kh4 Qg4) 29...Qf2 0–1. Dopper,Johan – Baris,Hans, 1991.

6.Nf3 e4 7.Nd4+=.

4.Nc3 a6

5.e3 Be6 6.Nf3 h6 7.d4 ed4 8.Nd4 (worse is 8.Qd4 Nc6 9.Qd1 Nb4+=) 8...Nc6 9.Nc6 bc6 10.Bd3 d5 11.c5 a5 12.b5 cb5 13.Bb5 Bd7 14.a4 (14.c6 Bg4 15.Qa4 Bf5+=) 14...Bc5 (better is 14...c6!? 15.Bd3 Bc5+=) 15.Nd5+= c6? (better is 15...Nd5!? 16.Qd5 Bb4 17.Ke2 Bb5 18.Qb5 Kf8+=) 16.Nf6+/– gf6 17.Bd3 Bb4 18.Ke2 Qe7 19.Qc2 Rc8 20.Rhc1 h5 21.Rab1 h4 22.Bf5 c5 23.Bd7 Qd7 24.Rd1 (24.Qe4!? Qe6 25.Qe6 fe6 26.Bf6+/–) 24...Qg4= Black intends c4 25.Kf1 c4 (25...h3 26.g3 Ke7 27.Rd5+=) 26.Rd4 Qh5? (better is 26...Qg6 27.e4 c3+=) 27.Rc4 Rc4 28.Qc4 0–0 29.h3 Kg7 30.Qg4 (better is 30.Qf4!? Be7 31.Bd4+–) 30...Qg4+/– 31.hg4 Rc8 32.Bd4 Rc2 33.Rd1 Rd2? (better is 33...Kg6+/–) 34.Rd2+– Bd2 35.Ke2 Bb4 36.Kd3 Kg6 37.f4?? (better is 37.Bc3 Bc5 38.Ba5+–) 37...f5+/– 38.g5 Kh5 39.Ke2 Kg4 40.Kf2 h3 41.gh3 Kh3 42.Kf3 Kh4 43.e4 fe4 44.Ke4 Kg4 45.Be5 ˝–˝. Rush,Bradley – Martindale,Roger, 48. LSS No Engine Cup Preliminary, 2011.

5.e3 Be7 6.Qc2 0–0 7.h3 Nc6 8.a3 Re8 9.Be2 g6 10.Nf3 Bd7 11.0–0+= Qb8 12.Nd5 Be6 13.Nf6 Bf6+= 14.d4 ed4 15.ed4 d5 16.Rad1 Bf5 17.Bd3 Bd3 18.Qd3 Qd8 19.cd5 Qd5 20.Rfe1 Re7 21.Re7 Ne7 22.Rc1 c6 23.Kf1 Qb5 24.Qb5= ab5 25.Rc2 Nd5 26.g3 Nb6 27.Nd2 Nd5 28.Rc1 Re8 29.Re1 Rb8 30.h4 Nb6 31.Ne4 Bg7 32.Rd1 Nc4=+ 33.Bc1 Rd8 34.Nc5 b6 35.Nb3 Ra8 36.d5 cd5 37.Rd5= Na3 38.Ba3 Ra3 39.Rd8 Bf8–/+ 40.Nd4 Kg7 41.Nb5 Rb3 42.Nc7 Bb4 43.Nd5 Bc5 44.Rd7 Rb2 45.Ne3 h5 46.Kg2 0–1. wlittle (2300) – vampirella (2380), net–chess.com, 2004.

5.e4 Be7 6.Nf3 h6 (6...Nc6 7.a3=) 7.d4 ed4 8.Nd4 (worse is 8.Qd4 Nc6 9.Qd2 Nb4+=) 8...0–0 9.Bd3 c5 10.Nc2 Nc6 11.a3 Bd7 12.0–0 Qc7 (12...Ne5 13.Ne3+=) 13.Ne3+/– Rfe8 14.h3 Qc8 15.Ncd5 Nd5 16.cd5 (16.Nd5 Qd8+/–) 16...Ne5+= 17.Be2 Bh3? (better is 17...Qc7+=) 18.gh3+– Qh3 (18...cb4 19.Nf5 Bf8 20.Rc1+–) 19.Be5 de5 20.d6 Bh4 (20...Bd8 21.bc5 Qh4+–) 21.Ng4 (21.Ng4 Re6 22.bc5+/–; worse is 21.bc5 Re6 22.Bh5 Bd8+–) 1–0. Woschkat,Karl_Heinz – Karaschau,Doris, TWO (year?).

5.Nf3 c5 6.bc5+= dc5 7.g3 Bd6 8.Bg2 Nc6 9.0–0 Rb8 10.Rb1 1–0. algernon (2400) – macedon (2200), net–chess.com, 2013.

5.Nf3 Bg4 6.h3 Bh5 (6...Bf3 7.ef3 Nc6 8.a3+=) 7.g4= Bg6 8.Bg2 Ne4 9.Ne5 (9.Ne4 Be4 10.d3 Bc6=) 9...de5?? (better is 9...Nc3 10.Bc3 de5 11.Bb7 Ra7 12.Qa4 Qd7 13.Qd7 Kd7–/+) 10.Ne4 Be4? (better is 10...Bb4!? 11.a3 Be7 12.Be5 0–0+=) 11.Be4+– c6 12.Be5 (12.a3+–) 12...Qg5? (better is 12...Qe7 13.d4 f6 14.Bb8 Qe4=) 13.f4 (better is 13.Bc3!? Nd7+–) 13...Qh4+/– 14.Kf1 f6 15.Bb8 Rb8 16.Qe1 (16.c5 Qg3 17.e3 a5+–) 16...Qe1 17.Re1 Bb4 18.Rb1 Bd6 (18...Bd2 19.Bc6! Kf8 20.f5+/–) 19.e3+– 0–0 20.Kg2 Rfe8 21.Bf3 a5 22.Rb3 Bb4 (22...a4 23.Rb2 a3 24.Rb3+–) 23.d4+– Bd2 24.Kf2 Re7? (better is 24...g5+–) 25.Bc6!! Rc8 (25...bc6 Exploits the pin 26.Rb8) 26.Bd5 (worse is 26.Bb7 Be3 27.Kf3 Rce8 28.Bd5 Kf8+–) 26...Kf8 27.Rd1 Bb4 28.a3 Bd6 29.c5 Bb8 30.Rb7 Rb7 31.Bb7 Rd8 32.d5 Ke7 33.d6 Bd6 34.cd6 Rd6 35.Rd6 Kd6 36.Kf3 (36.Kf3 Kc5 37.Ke4+–) 1–0. Wall,Bill – Williams,Larry, Palo Alto, 1988.

5.g3 Nc6 6.Bg2 (6.Nd5 Be7=+) 6...Nb4–/+ 7.Qb3 Nc6 8.e3 (8.Nd5 Be7–/+) 8...Be7 9.Nge2 0–0 10.0–0 Rb8?? (10...Na5 11.Qa4 c6 12.f4–/+) 11.Rfd1?? ( 11.Bc6 Be6 12.Bd5+– (12.Bb7 Bc8–/+)) 11...Na5 12.Qa4 b6 13.d3 Nd7 14.Qc2 Nf6 15.Ba3 c5 16.Rab1 Be6 17.Ne4 Ne4 18.Be4 f5 19.Bg2 f4 20.ef4 ef4 21.Nf4= Bd7 22.Bb2 Nc6?? 23.Bc6 Bc6+= 24.Ne6 Qe8 25.Nf8 Qf8 26.Re1 Qf3=+ 27.Re4 Be4 28.de4 b5 29.cb5 ab5 30.Rd1 b4 31.e5 de5 32.Be5=+ Rc8 33.Rd3 Qf7=+ 34.a4 c4–+ 35.Rd1 Bf6 36.Bd6 b3–+ 37.Qf5 Re8 38.Qb5 c3 39.Rd3? b2 40.f4 c2 (40...c2 41.Qb2 Bb2 42.Be5 c1Q 43.Kf2 Qc2 44.Rd2 Qd2 45.Kf3 Re5 46.a5 Qe2) 0–1. wlittle (2300) – trinimaster (2140), net–chess.com, 2004.

5.e3 Nc6

6.a3 Be6 7.Qc2 g6 (7...Qd7 8.Nf3 Be7 9.Bd3 h6 10.0–0 0–0 11.h3 Rfe8 12.Rfe1 Rab8; 7...Be7 8.Nf3 0–0 9.Bd3 h6 10.0–0 Qd7 11.h3 Rab8 12.Rac1 Ra8; 7...h6 8.Nf3 Be7 9.Bd3 0–0 10.0–0 Qd7 11.h3 Rfe8 12.Rac1 Red8; 7...Qc8 8.Nf3 Be7 9.Bd3 h6 10.0–0 0–0 11.h3 Qd7 12.Rac1 Rfd8; 7...Ra7 8.Nf3 h6 9.Bd3 Be7 10.0–0 0–0 11.h3 Qd7 12.Rfe1 Re8) 8.Nf3 Bh6 9.Bd3 0–0 10.0–0 Bg4 11.Be2 Qd7 12.h3 Be6.

6.a3 Be6 7.Be2 Be7 (7...h6 8.Nf3 e4 9.Nd4 Nd4 10.ed4 Be7 11.0–0 Qd7 12.Qb1 0–0; 7...d5 8.cd5 Nd5 9.Nf3 Bd6 10.Qc2 0–0 11.0–0 Nc3 12.Bc3 Qf6; 7...g6 8.Nf3 Bh6 9.d4 Bf5 10.de5 Ne5 11.Ne5 de5 12.Qa4 Kf8; 7...Qd7 8.Nf3 Be7 9.d4 ed4 10.Nd4 Nd4 11.Qd4 Qc6 12.0–0 0–0–0) 8.Nf3 0–0 9.Qc2 d5 10.cd5 Nd5 11.0–0 f6 12.Ne4 Qd7.

6.a3 Be6 7.Nf3 Ne7 (7...g6 8.d3= (8.Bd3 Bh6 9.0–0 0–0 10.h3 Re8 11.Rc1 Bd7 12.Nd5 Bg7) 8...Bg7 9.Ng5 Bf5 10.Be2 0–0 11.0–0 Qe7 12.Qb3 Bg4; 7...Be7 8.Bd3 h6 9.0–0 0–0 10.Qc2 Qd7 11.h3 Rfb8 12.Rfe1 Rd8; 7...h6 8.d4 ed4 9.Nd4 Nd4 10.Qd4 a5 11.Be2 ab4 12.ab4 Ra1; 7...Qd7 8.Qa4 Be7 9.b5 Na7 10.Bd3 0–0 11.Qc2 ab5 12.cb5 h6; 7...Qc8 8.Bd3 Be7 9.0–0 0–0 10.Ng5 Bf5 11.Qb1 Bg6 12.f4 Qg4) 8.d4 (8.Be2 Ng6 9.Ng5 Bf5 10.Bf3 h6 11.Nge4 Ne4 12.Ne4 Be6) 8...ed4+/= (8...Ng6 9.Bd3 Be7 10.d5 Bd7 11.0–0 0–0 12.Qe2 c6) 9.Nd4 d5 (9...Bd7 10.Be2+= (10.Bd3 c5 11.Nf3 cb4 12.ab4 Nc6) 10...Nc6 11.0–0 Be7 12.Nc6 bc6; 9...Nc6 10.Ne6 fe6 11.Bd3 Be7 12.Ne4 0–0) 10.Ne6 (10.Bd3 Qd7 11.c5 Nc6 12.Nc6 Qc6) 10...fe6+/– 11.Bd3 (11.Qf3 Qd7 12.Rd1 0–0–0) 11...b6 (11...a5 12.0–0+/– (12.b5 Qd6) 12...ab4; 11...Qd7 12.0–0 0–0–0) 12.0–0 (12.Qe2 Kf7) 12...c5+– (12...dc4+–) 13.Qa4 (13.Qe2 Qc8+–) 13...Kf7 14.Qb3 cb4 (14...Qd7 15.bc5 bc5 16.cd5 Ned5 17.Ne4 Ne4 18.Be4+–) 15.ab4 Nc6+– (better is 15...Qd6+–) 16.cd5 ed5 (16...Nd5 17.Rfd1 Nf6+–) 17.Ba3 (better is 17.Rfd1 Nb4 White can already relax 18.Nd5 Nbd5 19.Bc4+–) 17...b5 (17...Qd7 18.Rfd1 Qe6 19.Nd5+–) 18.e4 (better is 18.Rfd1 Bd6 19.f4+–) 18...Ke6 (better is 18...Be7+–) 19.ed5 Nd5 (19...Kd6 20.dc6 doesn't improve anything 20...Kc7 21.Rfd1+–) 20.Rfe1 Ne5 (20...Kf7 21.Be4 Be7 22.Bd5 Kf8 23.Bc6+–) 21.Be4 (21.Re5 Ke5 22.Bb2 Qd7 23.Re1 Kd6 24.Qd5 Kc7 25.Nb5 ab5 26.Be5 Kd8 27.Qa8 Qc8 28.Qa5 Ke8 29.Bd6 Kf7 30.Qa7 Kf6 31.Bf8 Qf8 32.Qb6 Kg5 33.Re5 Kg4 34.Be2 Kf4 35.Qd4) 21...Nc4 (21...Ra7 22.Bb2 Bd6 23.Bd5 Kd7 24.Nb5+–) 22.Bd5 Kf5 23.Qc2 Kf4 (23...Kg5 24.Bc1 Ne3 25.Re3 Qc8 26.Re6 Kh4 27.Qf5 g5 28.Qg5) 24.Bc1 Ne3 25.Be3 Ke5 26.Qe4 Kd6 27.Bf4 Kd7 28.Qe6 1–0. De Andres Trelles,FJ – Garcia Medina,B, Valladolid CC Social, 1980.

6.a3 Be7 A) 7.Bd3 d5 (7...Be6 8.Nf3 h6 9.0–0 0–0 10.Qc2 Re8 11.h3 Qd7 12.Rac1 Rab8; 7...0–0 8.Nf3 g6 9.0–0 d5 10.cd5 Nd5 11.Nd5 Qd5 12.Qc2 Bf6; 7...h6 8.Qc2 0–0 9.Nf3 Bg4 10.h3 Be6 11.0–0 Qd7 12.Rac1 Rae8; 7...g6 8.Nf3 0–0 9.0–0 d5 10.Nd5 Nd5 11.cd5 Qd5 12.Qc2 Bf6) 8.cd5 Nd5 9.Nd5 Qd5 10.Qc2 Be6 11.Nf3 Bf6 12.Be4 Qd6; B) 7.Nf3 Bf5 8.Be2 0–0 9.0–0 h6 10.d4 ed4 11.Nd4 Nd4 12.Qd4 c6; C) 7.Be2 Bf5 (7...0–0 8.Nf3 Bf5 9.0–0 e4 10.Nd4 Nd4 11.ed4 Qd7 12.Qb3 h6; 7...h6 8.Qc2 Be6 9.Nf3 0–0 10.0–0 Qd7 11.Bd3 Bg4 12.Nd5 Rfd8; 7...Be6 8.Nf3 0–0 9.0–0 d5 10.cd5 Nd5 11.Qc2 Qd7 12.Ne4 f6; 7...g6 8.Nf3 0–0 9.0–0 Bf5 10.d4 ed4 11.Nd4 Nd4 12.Qd4 c5; 7...e4 8.Qc2 Bf5 9.Nh3 a5 10.b5 Ne5 11.0–0 h6 12.Nf4 0–0) 8.Nf3 e4 9.Nd4 Nd4 10.ed4 0–0 11.0–0 c6 12.f3 Qd7; D) 7.Qc2 0–0 (7...h6 8.Nf3 0–0 9.Bd3 Re8 10.h3 Be6 11.0–0 Qd7 12.Rac1 Rf8; 7...g6 8.Nf3 0–0 9.Bd3 Bg4 10.0–0 Qd7 11.Nd5 Rfe8 12.Ne7 Qe7; 7...Qd7 8.Nd5 Qd8 9.Nf3 Be6 10.Ne7 Qe7 11.Bd3 0–0 12.h3 h6; 7...Be6 8.Nf3 Qd7 9.Bd3 h6 10.h3 0–0 11.0–0 Rfd8 12.Rfe1 Re8; 7...Bg4 8.Nf3 0–0 9.Bd3 Qd7 10.Ng5 h6 11.Bh7 Kh8 12.h3 Bh5) 8.Nf3 g6 9.Bd3 Bg4 10.0–0 Qd7 11.Nd5 Rfe8 12.Ne7 Qe7.

6.a3 Bf5 A) 7.b5 Na5 (7...ab5 8.cb5 Na5 9.Nf3 Be7 10.Be2 0–0 11.0–0 h6 12.d4 e4) 8.ba6 ba6 9.Qa4 c6 10.Nf3 Rb8 11.Ra2 Be7 12.Be2 0–0; B) 7.Nge2 Be7 (7...Be6 8.Ng3 g6 9.Bd3 Bg7 10.0–0 0–0 11.Qe2 Qe7 12.f3 Qd7; 7...Qd7 8.Ng3 Bg6 9.Qa4 Be7 10.Nd5 0–0 11.Be2 Rfd8 12.h3 h6; 7...Bg6 8.Ng3 Be7 9.h4 h6 10.h5 Bh7 11.Qf3 Qd7 12.Be2 0–0; 7...h6 8.Ng3 Bg6 9.Qf3 Qd7 10.Be2 Be7 11.0–0 0–0 12.Nd5 Rfe8; 7...Bg4 8.h3 Be6 9.Ng3 Be7 10.Bd3 0–0 11.Nf5 d5 12.cd5 Nd5) 8.Ng3 Be6 9.Bd3 Qd7 10.0–0 0–0 11.Qe2 Rad8 12.Nge4 Ne4; C) 7.Be2 Qd7 (7...Be7 8.Nf3 0–0 9.0–0 e4 10.Nd4 Nd4 11.ed4 Qd7 12.Qb3 a5; 7...d5 8.cd5 Nd5 9.Nf3 Be7 10.Qb3 Nc3 11.Bc3 e4 12.Ne5 Ne5; 7...h6 8.Nf3 e4 9.Nh4 Be6 10.d3 ed3 11.Qd3 Ne5 12.Qd4 c5; 7...e4 8.Nh3 Ne5 9.0–0 Qd7 10.Nf4 Be7 11.Qc2 0–0 12.Ncd5 Nd5; 7...Qc8 8.Nf3 Be7 9.d4 e4 10.Nd2 Bg6 11.Nd5 0–0 12.Ne7 Ne7) 8.Nf3 Be7 9.d4 e4 10.Nd2 Bg6 11.h4 h5 12.0–0 0–0; D) 7.Nf3 Be7 (7...h6 8.d4 e4 9.Qc2 Be7 10.Nd2 0–0 11.Be2 d5 12.0–0 Re8; 7...Qd7 8.Qa4 Be7 9.b5 Na7 10.Nh4 Be6 11.Be2 0–0 12.Qc2 Nc8; 7...g6 8.h3 Be7 9.g4 Be6 10.d4 ed4 11.Nd4 0–0 12.Ne6 fe6) 8.Be2 e4 9.Nd4 Nd4 10.ed4 0–0 11.0–0 c6 12.Qb3 d5.

6.Qb3 A) 6...Bf5 A1) 7.Nge2 Be7 (7...a5 8.Ng3 Bg6 9.b5 Nb4 10.Rc1 h5 11.a3 h4 12.ab4 hg3; 7...h5 8.Nd5 a5 9.Ng3 Be6 10.b5 a4 11.Nf6 Qf6 12.Qd1 Nb4; 7...Qd7 8.Ng3 Bg6 9.h4 h5 10.Be2 Be7 11.Nd5 Ng4 12.b5 ab5; 7...Bg6 8.Nd5 Be7 9.Nec3 0–0 10.Be2 a5 11.b5 Nb4 12.0–0 Bc2; 7...Be6 8.Nd5 a5 9.b5 a4 10.Nf6 Qf6 11.Qa3 Na5 12.Qa4 Qd8) 8.Ng3 Be6 9.Bd3 0–0 10.0–0 b5 11.Nd5 bc4 12.Nf6 gf6; A2) 7.Nf3 Qd7 (7...e4 8.Nd4 Nd4 9.ed4 g6 10.Be2 Bh6 11.Rd1 0–0 12.0–0 c6; 7...Be7 8.Be2 0–0 9.0–0 e4 10.Nd4 Nd4 11.ed4 Qd7 12.f3 Rfe8; 7...h6 8.Be2 Be7 9.0–0 0–0 10.Nd5 Rb8 11.Nh4 Bd7 12.Nf3 Bf5; 7...h5 8.Nh4 Be6 9.Nf3 Be7 10.Be2 0–0 11.0–0 Qd7 12.Nd5 Bf5) 8.Nd5 Be7 9.Be2 0–0 10.0–0 h6 11.h3 Rfe8 12.Rac1 b6; B) 6...Be7 B1) 7.Be2 0–0 8.Nf3 e4 9.Ng5 Bf5 10.f3 ef3 11.Nf3 d5 12.cd5 Nb4; B2) 7.Bd3 a5 (7...0–0 8.Nf3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Be6 12.0–0 Qd7; 7...Be6 8.Nf3 a5 9.b5 Nb4 10.Be2 Bf5 11.0–0 0–0 12.d4 Bc2; 7...h5 8.Nf3 a5 9.b5 Nb4 10.Bb1 d5 11.Ne5 Be6 12.cd5 Nbd5; 7...Bg4 8.h3 Be6 9.Nf3 a5 10.b5 Nb4 11.Be2 Bf5 12.0–0 0–0; 7...Bd7 8.a3 0–0 9.Nf3 Bg4 10.0–0 Qd7 11.Nd5 g6 12.Ne7 Qe7) 8.a3 ab4 9.ab4 Ra1 10.Ba1 Be6 11.Nf3 d5 12.cd5 Nd5; B3) 7.Nf3 e4 (7...Bf5 8.Be2 0–0 9.0–0 e4 10.Nd4 Nd4 11.ed4 b6 12.f3 Qd7; 7...0–0 8.Bd3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Be6 12.0–0 Qd7) 8.Ng5 Bf5 9.g4 Ng4 10.Nge4 0–0 11.Be2 a5 12.b5 a4; C) 6...h5 C1) 7.Nf3 Bf5 8.Be2 Be7 9.0–0 0–0 10.d4 ed4 11.Nd4 Nd4 12.ed4 Re8; C2) 7.Nh3 Bf5 (7...Be7 8.Bd3 0–0 9.Ng5 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Ng4; 7...h4 8.Ng5 Bf5 9.Be2 Be7 10.0–0 Qd7 11.h3 0–0 12.b5 Na5) 8.Be2 Be7 9.0–0 0–0 10.Ng5 Qd7 11.h3 e4 12.f3 ef3; C3) 7.h3 Be7 (7...Bf5 8.Nf3 a5 9.b5 Nb4 10.Rc1 Be7 11.Na4 e4 12.Nd4 Qd7; 7...Bd7 8.Nf3 Be7 9.Be2 0–0 10.0–0 Be6 11.Ng5 Bf5 12.Bf3 Qd7; 7...Be6 8.Nf3 Be7 9.Be2 0–0 10.0–0 Qd7 11.Nd5 b5 12.d3 a5) 8.Nf3 0–0 9.Be2 Bf5 10.0–0 e4 11.Nd4 Nd4 12.ed4 Qd7; C4) 7.Rc1 Be7 (7...Bf5 8.Nf3 Be7 9.Be2 0–0 10.0–0 Qd7 11.Nd5 Rab8 12.Ne7 Qe7; 7...e4 8.Nge2 Bf5 9.Nd5 Ne5 10.Nd4 Bd7 11.f4 ef3 12.Nf3 Nd5) 8.Nf3 0–0 9.Be2 Bf5 10.0–0 a5 11.b5 Nb4 12.Na4 c6; C5) 7.Be2 Bf5 (7...Be7 8.Nf3 0–0 9.0–0 Bf5 10.d4 ed4 11.Nd4 Nd4 12.ed4 c6; 7...Bg4 8.Nf3 Be7 9.0–0 0–0 10.h3 Bf5 11.d4 ed4 12.Nd4 Nd4; 7...e4 8.Nh3 Be7 9.Nf4 a5 10.b5 Ne5 11.0–0 h4 12.f3 g5; 7...Bd7 8.Nf3 Be7 9.0–0 Bf5 10.d4 ed4 11.Nd4 Nd4 12.ed4 0–0 ) 8.Nf3 Be7 9.0–0 0–0 10.d4 ed4 11.Nd4 Nd4 12.ed4 Re8; D) 6...h6 D1) 7.Nd5 Bf5 (7...a5 8.b5 a4 9.Qd3 Na5 10.Nf3 Be6 11.Rc1 Be7 12.Nf6 Bf6; 7...Be7 8.Nf3 Bf5 9.Be2 0–0 10.0–0 a5 11.b5 Nb4 12.Nb4 ab4) 8.Ne2 Be7 9.Ng3 Bg6 10.Be2 0–0 11.0–0 Qd7 12.f4 Rae8; D2) 7.Nf3 Bf5 (7...e4 8.Nd4 Nd4 9.ed4 a5 10.d3 a4 11.Qc2 a3 12.Bc1 d5; 7...Be7 8.Bd3 0–0 9.0–0 Bg4 10.Nd5 Qd7 11.Rac1 Rfc8 12.Bc3 Bf5; 7...Be6 8.Nd5 Bf5 9.Be2 Be7 10.0–0 0–0 11.h3 Qd7 12.d4 ed4) 8.Be2 Be7 9.0–0 0–0 10.Nd5 Re8 11.h3 Qd7 12.Ne7 Re7; D3) 7.Be2 Bf5 (7...Be6 8.Nf3 Be7 9.d4 ed4 10.Nd4 Nd4 11.ed4 0–0 12.d5 Bf5; 7...Be7 8.Nf3 0–0 9.0–0 Be6 10.Nd5 b5 11.d4 e4 12.Nd2 bc4; 7...Bd7 8.Nf3 Be7 9.0–0 e4 10.Nd4 Ne5 11.f4 ef3 12.Nf3 0–0; 7...e4 8.Nh3 Be7 9.Nf4 0–0 10.0–0 Ne5 11.d4 ed3 12.Nd3 Bf5) 8.Nf3 Be7 9.0–0 0–0 10.Nd5 Re8 11.Nh4 Be6 12.Nf3 b5.

6.Be2 A) 6...Nb4 A1) 7.Qb3 c5 (7...d5 8.cd5 Nfd5 9.a3 Nc3 10.Qc3 Nc6 11.Nf3 Bd6 12.d4 e4; 7...a5 8.Nf3 Bf5 9.0–0 Be7 10.e4 Ne4 11.Ne4 Be4 12.a3 Na6; 7...Nc6 8.Nf3 g6 9.0–0 Bg7 10.d4 ed4 11.ed4 0–0 12.d5 Na5) 8.a3 Nc6 9.Nf3 Be7 10.0–0 0–0 11.Bd3 Bd7 12.h3 Na5; A2) 7.Qa4 Nc6 8.Nf3 Be7 9.0–0 0–0 10.Bd3 h6 11.Nd5 Be6 12.e4 Bg4; A3) 7.a3 Nc6 8.Nf3 g6 9.0–0 Bg7 10.Qb3 0–0 11.Bd3 Bd7 12.h3 Rb8; A4) 7.Nf3 Be7 (7...Nc6 8.d4 Be7 9.0–0 0–0 10.Qb3 Bd7 11.de5 de5 12.Rad1 Bd6; 7...Bf5 8.0–0 Qd7 9.Qb3 c5 10.Rfc1 0–0–0 11.Nh4 Bd3 12.Na4 Qc6; 7...e4 8.Qa4 Nc6 9.Ng5 Bf5 10.f3 Bd7 11.Nce4 Ne4 12.Ne4 Nd4) 8.Qb3 c5 9.a3 Nc6 10.0–0 0–0 11.Nd5 Nd5 12.cd5 Na5; B) 6...Bf5 B1) 7.g4 Bg6 8.g5 Ne4 9.Nf3 Be7 10.Ne4 Be4 11.b5 ab5 12.cb5 Na5; B2) 7.a3 Be7 (7...Qd7 8.Nf3 Be7 9.d4 e4 10.Nd2 Bg6 11.Nd5 0–0 12.Qc2 Rfe8; 7...Ne4 8.Ne4 Be4 9.Nf3 Be7 10.b5 Na5 11.d4 ab5 12.cb5 f6; 7...d5 8.cd5 Nd5 9.Nf3 Nc3 10.Bc3 Bd6 11.d4 e4 12.Ne5 Qg5) 8.Nf3 e4 9.Nd4 Nd4 10.ed4 0–0 11.0–0 a5 12.Qb3 Qd7; B3) 7.Nf3 Nb4 (7...Be7 8.0–0 0–0 9.Qb3 g6 10.Nd5 Qd7 11.d3 Rfd8 12.h3 Ra7; 7...h6 8.d4 e4 9.Nd2 Be7 10.a3 0–0 11.0–0 Re8 12.Qc2 d5; 7...e4 8.Nh4 Be6 9.0–0 Be7 10.Nd5 g5 11.Ne7 Ke7 12.f3 gh4; 7...d5 8.b5 ab5 9.cd5 Nd5 10.Bb5 f6 11.0–0 Ba3 12.Qb3 Bb2; 7...g6 8.0–0 Bh6 9.Nh4 Be6 10.d4 g5 11.Nf3 g4 12.d5 gf3) 8.0–0 Qd7 9.Qb3 c5 10.Rfc1 Be7 11.Na4 Rd8 12.a3 Nc6; C) 6...e4 C1) 7.Qb3 a5 (7...Be7 8.Nh3 Bh3 9.gh3 0–0 10.Rg1 Qd7 11.Ne4 Ne4 12.Rg7 Kh8 13.Bg4; 7...Bf5 8.Nh3 a5 9.ba5 Na5 10.Qc2 h6 11.g4 Bh7 12.g5 hg5) 8.b5 Ne5 9.f4 Ned7 10.Qc2 Nc5 11.Nh3 Bh3 12.gh3 Qd7; C2) 7.d3 ed3 (7...d5 8.cd5 ed3 9.Bd3 Nd5 10.a3 a5 11.b5 Ne5 12.Be4 Nf6) 8.Bd3 Be7 9.Nf3 0–0 10.a3 Bg4 11.h3 Bh5 12.Be2 h6; C3) 7.Nd5 Be7 (7...Be6 8.Nf6 gf6 9.Nh3 Bh6 10.Qc2 d5 11.b5 ab5 12.cb5 Nb4; 7...Ne5 8.Nh3 Bh3 9.gh3 c6 10.Qa4 Be7 11.Rg1 0–0 12.Be5 de5; 7...a5 8.Bf6 gf6 9.b5 Nb4 10.Nh3 Rg8 11.Nhf4 Nd5 12.cd5 Bh6) 8.Nh3 0–0 9.Nhf4 a5 10.b5 Nd5 11.Nd5 Ne5 12.0–0 c6; C4) 7.f3 d5 (7...g6 8.fe4 Bg7 9.Nf3 Ne4 10.Ne4 Bb2 11.Rb1 Bg7 12.Qc2 0–0) 8.cd5 Nd5 9.fe4 Nc3 10.Bc3 Bb4 11.Nf3 Bc3 12.dc3 Qe7; C5) 7.Nh3 Be7 (7...Bh3 8.gh3 Nb4 9.Qa4 Nc6 10.Rb1 Rb8 11.Rg1 Qd7 12.Nd5 Ne5) 8.Nf4 0–0 9.0–0 a5 10.b5 Ne5 11.d4 ed3 12.Bd3 c6; D) 6...Be7 D1) 7.Nf3 0–0 (7...Nb4 8.Qb3 c5 9.a3 Nc6 10.0–0 0–0 11.Bd3 Bd7 12.Ne4 Qc7; 7...Bf5 8.0–0 0–0 9.Qb3 h6 10.d4 e4 11.Nd2 Qd7 12.f3 ef3; 7...e4 8.Ng5 Bf5 9.Qb1 Nb4 10.Nce4 Ne4 11.Ne4 0–0 12.0–0 d5) 8.0–0 Nb4 9.Qb3 a5 10.a3 Nc6 11.Rab1 h6 12.Bd3 Rb8; D2) 7.Qb3 0–0 8.Nf3 e4 9.Ng5 Bf5 10.f3 ef3 11.Nf3 d5 12.cd5 Nb4; D3) 7.a3 d5 (7...0–0 8.Nf3 Bf5 9.0–0 e4 10.Nd4 Nd4 11.ed4 Qd7 12.Qb3 a5; 7...Bf5 8.Nf3 0–0 9.0–0 e4 10.Nd4 Nd4 11.ed4 Qd7 12.f3 Rae8; 7...h6 8.Nf3 e4 9.Nd4 Nd4 10.ed4 0–0 11.0–0 Bf5 12.f3 Qd7; 7...g6 8.Nf3 0–0 9.0–0 Bf5 10.d4 ed4 11.Nd4 Nd4 12.Qd4 c5; 7...Be6 8.Nf3 0–0 9.0–0 Bf5 10.d4 ed4 11.Nd4 Nd4 12.Qd4 h6) 8.cd5 Nd5 9.Nf3 0–0 10.Qc2 Be6 11.Na4 Qd6 12.0–0 g6; D4) 7.b5 Na5 8.Nf3 Be6 9.d3 ab5 10.cb5 0–0 11.Qc2 Qd7 12.0–0 h6.

6.Nf3 A) 6...Nb4 A1) 7.Qb3 a5 (7...Nc6 8.Bd3 g6 9.0–0 Bg7 10.Nd5 0–0 11.h3 Re8 12.Nf6 Bf6) 8.a3 Nc6 9.Bd3 g6 10.0–0 Bg7 11.Rac1 0–0 12.h3 Bd7; A2) 7.a3 Nc6 8.Bd3 g6 9.0–0 Bg7 10.Qb3 0–0 11.h3 Bd7 12.Ne4 b5; A3) 7.Be2 Be7 (7...Bf5 8.0–0 Qd7 9.Qb3 c5 10.Rfc1 Rb8 11.d4 e4 12.Nh4 Bg4; 7...Nc6 8.d4 Be7 9.0–0 0–0 10.Qb3 ed4 11.Nd4 Nd4 12.ed4 Rb8) 8.Qb3 Nc6 9.0–0 0–0 10.Nd5 Rb8 11.Bd3 Bg4 12.Bc3 Qd7; A4) 7.Qa4 Nc6 8.Bd3 Be7 9.0–0 0–0 10.Nd5 h6 11.Qb3 Re8 12.e4 Rb8; B) 6...Bf5 B1) 7.Qb3 Be7 (7...e4 8.Nh4 Be6 9.Nd5 Be7 10.Be2 0–0 11.0–0 Nd7 12.Qc3 Nde5; 7...Qd7 8.Nh4 Be6 9.Bd3 d5 10.a3 0–0–0 11.Rd1 Be7 12.g3 g5; 7...h6 8.Be2 Be7 9.0–0 0–0 10.Nd5 Re8 11.d4 e4 12.Nh4 Bd7; 7...h5 8.Nh4 Bd7 9.Be2 Be7 10.0–0 0–0 11.Nf3 Bf5 12.d4 ed4) 8.Be2 0–0 9.0–0 h6 10.Nd5 Qd7 11.h3 Rfd8 12.d4 ed4; B2) 7.Nh4 Be6 (7...Bd7 8.Nf3 e4 9.Ng5 Nb4 10.Qb3 a5 11.a3 Nd3 12.Bd3 a4) 8.Qb3 d5 9.Nf3 d4 10.ed4 ed4 11.Ne2 Bb4 12.Ned4 Nd4; B3) 7.a3 Be7 (7...g6 8.h3 Be7 9.g4 Be6 10.g5 Nd7 11.Nd5 0–0 12.Bd3 Nb6; 7...Qd7 8.Qa4 Be7 9.b5 Na7 10.c5 ab5 11.Bb5 c6 12.Be2 e4; 7...h6 8.d4 e4 9.Qc2 Qe7 10.Nd2 0–0–0 11.Be2 Kb8 12.0–0 Rg8; 7...Qc8 8.Nd5 Be7 9.Ne7 Ne7 10.Be2 0–0 11.0–0 Nc6 12.d4 e4) 8.Be2 0–0 9.0–0 e4 10.Nd4 Nd4 11.ed4 Qd7 12.Qb3 h6; B4) 7.d4 a5 (7...Qd7 8.a3 ed4 9.Nd4 Nd4 10.Qd4 a5 11.Bd3 Bd3 12.Qd3 ab4) 8.b5 Nb4 9.Rc1 e4 10.Nh4 Bd7 11.a3 g5 12.ab4 ab4; B5) 7.Be2 Be7 (7...Nb4 8.Qa4 Nc6 9.d4 Qd7 10.d5 Ne7 11.Qb3 0–0–0 12.0–0 Ng6) 8.0–0 0–0 9.a3 e4 10.Nd4 Nd4 11.ed4 Qd7 12.Qb3 h6.

5.Nf3 Nc6

6.a3 Bf5 7.d3 h6 8.e4 Bg6 9.g3 (9.Be2 Be7+=) 9...Qd7 (9...Be7 10.Bg2=) 10.Bg2 Be7 11.0–0 0–0 12.Re1 Rfe8 13.Qc2 Bh5 14.Nd5 Bg4 15.b5 ab5 (15...Nd8!? 16.d4 Nd5 17.cd5 Bf6=) 16.cb5+= Na5 17.Nc7 Rec8 18.b6 Rab8 (18...Bd8 19.Rac1 Ra6 20.Qd2 Rb6 21.Nd5 Nd5 22.Rc8 Qc8 23.ed5–/+) 19.d4 Nc6 (19...Qc6!? 20.Qc6 bc6 21.de5 de5+/–) 20.de5+– Bf3 (20...Ne8 21.ed6 Bd6 22.Ne8 Qe8 23.Qd2+–) 21.Bf3 (better is 21.ef6!? Bg2 22.Kg2+–) 21...de5+/– 22.Rad1 Bd6 23.Qd2 (23.Qe2 Qe7 24.Nd5 Qe6+/–) 23...Rd8 (23...Bc7!? 24.Qd7 Nd7 25.Rd7 Bb6=) 24.Nd5 Qe6 25.Qe2 (25.Qe3 Ng4 26.Qe2 Nf6+/–) 25...Bc5 26.Qb5 (26.a4 Bd4+/–) 26...Nd4+= 27.Bd4 Bd4 28.a4 Nd5 29.ed5 Qb6? (better is 29...Qf6 30.Rd3 Bb6=) 30.Qb6+– Bb6 31.Re5 Ba5 (better is 31...Bc5!?+–) 32.d6 b6 33.d7 f6 34.Re2 Bb4 35.Bc6 Bc3 (35...Kf7 36.Kg2+–) 36.f4 f5 37.Rd6 Rf8 (37...Bb4 38.Rde6+–) 38.Rde6 (better is 38.Re8 g5 39.Kf2+–) 38...Bf6 39.Re8 Bd8 (39...Rd8+–) 40.Bd5 (40.Bd5 Kh7 41.Rf8+–) 1–0. De Visser,Arno – Bouwmeester, 1999.

6.a3 Bg4 7.e3 e4 8.h3 Bh5 (8...Bf5 9.Qc2=) 9.g4+= Bg6 10.Nh4 Be7 11.g5 Nd7 (11...Nh5 12.Ng6 hg6 13.h4+/–) 12.Ng6+/– hg6 13.Ne4 0–0 (13...Bg5!? 14.Bg7 Rh7+/–) 14.h4+– Nce5? (better is 14...Re8+–) 15.f4 b6 (15...Nc6 16.h5+–) 16.h5 c5 (16...Nc6 17.h6 Re8 18.Bg2+– (worse is 18.Bg7 Kh7+–)) 17.hg6 Ng6 (17...fg6 18.fe5 Ne5 19.Be5 de5+–) 18.Qh5 f6 19.Qg6 1–0. saif (2000) – gfry (2035), net–chess.com, 2010.

4.Nc3 b6

5.a3 Nc6 A) 6.Nf3 A1) 6...Bf5 7.e3 (7.Qa4 Qd7 8.e3 Rd8 9.Be2 h6 10.0–0 e4 11.Nh4) 7...Qd7 8.Qa4 e4 9.Nh4 Bg6 10.Qc2 Qe6 11.Be2; A2) 6...h6 7.Nd5 (7.Qa4 Bb7 8.b5 Na5 9.g3 Qd7 10.Bg2 Qe6 11.d3) 7...Bf5 8.Qa4 Qd7 9.b5 Ne7 10.Nf6 gf6 11.g3; A3) 6...Be7 7.e3 (7.Qc2 0–0 8.e3 h6 9.Bd3 Be6 10.0–0 Qd7 11.h3) 7...0–0 8.Bd3 h6 9.Qa4 Bd7 10.Qb3 Qc8 11.0–0; B) 6.g3 B1) 6...Nd4 7.Bg2 (7.Nf3 Nf3 8.ef3 Be7 9.Bg2 0–0 10.0–0 Be6 11.Qe2) 7...Bg4 8.Nb5 Nb5 9.cb5 Rc8 10.Bc6 Bd7 11.Nf3; B2) 6...Bd7 7.Bg2 (7.Nf3 g6 8.Bg2 Bg7 9.b5 Na5 10.Qa4 0–0 11.Ng5) 7...Be7 8.Nf3 0–0 9.0–0 h6 10.Qc2 Be6 11.Nd5; B3) 6...Bf5 7.Qa4 (7.Bg2 Nd4 8.Rc1 a5 9.Ba8 Qa8 10.Nf3 Bd3 11.Nd5) 7...Qd7 8.Nf3 Be7 9.Nh4 Be6 10.Bg2 d5 11.b5; C) 6.Qa4 C1) 6...Bb7 7.Nf3 (7.b5 Na5 8.Nf3 Be7 9.g3 0–0 10.Bg2 a6 11.0–0) 7...Qd7 8.e4 Be7 9.Bd3 0–0 10.0–0 a5 11.Qb3; C2) 6...Qd7 7.Nf3 (7.b5 Na5 8.g3 Be7 9.Bh3 Qd8 10.Bg2 Be6 11.d3) 7...Bb7 8.e4 Be7 9.Bd3 Nd4 10.Nd4 ed4 11.Qd7; C3) 6...Bd7 7.Nf3 (7.b5 Nd4 8.e3 Ne6 9.Nf3 e4 10.Nd4 Nd4 11.ed4) 7...Nd4 8.Qd1 Nf3 9.gf3 Be7 10.Qc2 0–0 11.Rg1; D) 6.e3 D1) 6...Be7 7.Bd3 (7.Nf3 0–0 8.Bd3 h6 9.Qa4 Bd7 10.Qb3 Be6 11.0–0) 7...0–0 8.Nf3 h6 9.Nd5 Be6 10.Qa4 Nd5 11.Qc6; D2) 6...Bg4 7.Nf3 (7.Qa4 Bd7 8.Nf3 Nd4 9.Qd1 Nf3 10.Qf3 Bg4 11.Qc6) 7...Be7 8.h3 Bf5 9.g4 Bg6 10.Nh4 Be4 11.Ne4; D3) 6...Bf5 7.Qa4 (7.Nf3 Qd7 8.Qa4 Ne7 9.b5 Ng6 10.h3 Be7 11.g4) 7...Qd7 8.Nf3 a6 9.Nh4 Be6 10.Be2 Ne7 11.b5.

5.a3 Nbd7 A) 6.e3 A1) 6...Bb7 7.Qc2 (7.Nf3 e4 8.Nd4 Ne5 9.Be2 c5 10.bc5 bc5 11.Qa4) 7...a5 8.Nf3 e4 9.Nd4 Ne5 10.Be2 ab4 11.ab4; A2) 6...a5 7.Nf3 (7.Qf3 Ra7 8.Nb5 Bb7 9.Qh3 Ra8 10.Nf3 Be7 11.Be2) 7...e4 8.Nd4 Ne5 9.Be2 Bb7 10.0–0 Be7 11.Qc2; A3) 6...Be7 7.Be2 (7.Nf3 Bb7 8.Qc2 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1) 7...e4 8.Qc2 Bb7 9.Nh3 h6 10.0–0 0–0 11.Nf4; B) 6.Nf3 B1) 6...Be7 7.e4 (7.e3 Bb7 8.Be2 e4 9.Nd4 Ne5 10.0–0 Qd7 11.f4) 7...Bb7 8.Bd3 0–0 9.0–0 c6 10.Qe2 Qc7 11.Nh4; B2) 6...h6 7.g3 (7.e4 Be7 8.Bd3 0–0 9.0–0 Bb7 10.h3 c6 11.Qe2) 7...e4 8.Nd4 Ne5 9.Bg2 Nc4 10.Rb1 d5 11.d3; B3) 6...Bb7 7.e3 (7.Qc2 a5 8.e3 e4 9.Ng5 ab4 10.ab4 Ra1 11.Ba1) 7...e4 8.Nd4 Ne5 9.Be2 Be7 10.0–0 0–0 11.f4; C) 6.Qc2 C1) 6...a5 7.Nf3 (7.b5 Nc5 8.Nf3 Be6 9.e4 Be7 10.Be2 0–0 11.0–0) 7...Bb7 8.e3 e4 9.Nd4 Ne5 10.Be2 ab4 11.ab4; C2) 6...Be7 7.e3 (7.Nf3 0–0 8.e3 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1) 7...a5 8.Nf3 ab4 9.ab4 Ra1 10.Ba1 0–0 11.Be2; C3) 6...Bb7 7.Nf3 (7.e3 a5 8.Nf3 e4 9.Nd4 Ne5 10.Be2 ab4 11.ab4) 7...a5 8.e3 e4 9.Nd4 Ne5 10.Be2 ab4 11.ab4; D) 6.e4 D1) 6...Be7 7.Bd3 (7.Nf3 Bb7 8.Bd3 0–0 9.0–0 c6 10.Qe2 Qc7 11.Nh4) 7...Bb7 8.Nf3 0–0 9.0–0 c6 10.Qe2 Qc7 11.Nh4; D2) 6...g6 7.Nf3 (7.Bd3 Bg7 8.Nf3 0–0 9.0–0 c6 10.Qc2 Bb7 11.Be2) 7...Bg7 8.Bd3 0–0 9.0–0 c6 10.Qe2 Qe7 11.Bc2; D3) 6...Bb7 7.Bd3 (7.Qb1 Be7 8.Nf3 a5 9.Bd3 h6 10.0–0 0–0 11.Qc2) 7...Be7 8.Nf3 0–0 9.0–0 c6 10.Qe2 Qc7 11.Nh4.

5.a3 Be6 A) 6.Nf3 A1) 6...Nc6 7.e3 (7.Qa4 Qd7 8.e3 Ne7 9.Qd7 Kd7 10.Ng5 a5 11.Be2) 7...Qd7 8.Ng5 Bg4 9.f3 Bf5 10.b5 Na5 11.Nce4; A2) 6...Be7 7.e3 (7.d4 ed4 8.Nd4 0–0 9.e3 Bd7 10.Qf3 Na6 11.Nd5) 7...0–0 8.Bd3 Nc6 9.Ng5 d5 10.cd5 Bd5 11.Qc2; A3) 6...Bc4 7.Qa4 (7.d3 Be6 8.g3 h6 9.Bg2 Nbd7 10.0–0 Be7 11.Nd2) 7...c6 8.b5 cb5 9.Nb5 Bb5 10.Qb5 Nbd7 11.e3; B) 6.Qa4 B1) 6...Bd7 7.Qc2 (7.b5 Be6 8.Nf3 Nbd7 9.d4 Be7 10.g3 ed4 11.Nd4) 7...Be7 8.Nf3 Nc6 9.e3 0–0 10.Be2 h6 11.0–0; B2) 6...Qd7 7.b5 (7.Qd7 Nbd7 8.e3 e4 9.Nh3 Ne5 10.Nf4 Bc4 11.Nb5) 7...Qe7 8.Nf3 Nbd7 9.e3 Nc5 10.Qc2 g6 11.d4; B3) 6...Nbd7 7.Qc6 (7.Nf3 Be7 8.Qc6 0–0 9.d3 Rc8 10.Nd5 h6 11.Rc1) 7...Be7 8.Nf3 0–0 9.e3 a5 10.Nd5 Nd5 11.cd5; C) 6.e4 C1) 6...Nc6 7.Nf3 (7.Bd3 a5 8.b5 Nd4 9.Nge2 Ne2 10.Qe2 Be7 11.0–0) 7...Be7 8.Bd3 0–0 9.0–0 Qd7 10.Nd5 a6 11.h3; C2) 6...a5 7.Nf3 (7.Qa4 Nbd7 8.Qc6 Be7 9.Nf3 0–0 10.Bd3 ab4 11.ab4) 7...Be7 8.Bd3 ab4 9.ab4 Nc6 10.Ra8 Qa8 11.Qb3; C3) 6...Be7 7.Nf3 (7.Bd3 a5 8.Nf3 ab4 9.ab4 Nc6 10.Ra4 0–0 11.0–0) 7...0–0 8.Bd3 Nc6 9.0–0 Qd7 10.b5 Na5 11.Nd5; D) 6.e3 D1) 6...Nc6 7.Nf3 (7.Qa4 Qd7 8.Nf3 Be7 9.c5 Nd8 10.c6 Qc8 11.Ba6) 7...Be7 8.Ng5 Bg4 9.Qa4 h6 10.Qc6 Bd7 11.Qb7; D2) 6...Be7 7.Nf3 (7.Bd3 Nc6 8.Qf3 Bd7 9.Nge2 0–0 10.0–0 Re8 11.Nd5) 7...Nc6 8.Ng5 Bd7 9.b5 Na5 10.Bd3 h6 11.Nf3; D3) 6...a5 7.Be2 (7.Nf3 ab4 8.ab4 Nc6 9.b5 Ra1 10.Qa1 Na5 11.Qa4) 7...Be7 8.Nh3 ab4 9.ab4 Ra1 10.Qa1 0–0 11.Qa4.

5.a3 Be7 A) 6.Nf3 A1) 6...Nbd7 7.e4 (7.g3 e4 8.Ng5 Ne5 9.Qa4 Nfd7 10.h4 Bb7 11.Nd5) 7...0–0 8.Bd3 Bb7 9.0–0 c6 10.Be2 a5 11.Qc2; A2) 6...Nc6 7.e3 (7.Qa4 Bd7 8.b5 Na5 9.e3 0–0 10.Be2 a6 11.0–0 ) 7...Bf5 8.Qa4 Qd7 9.c5 0–0–0 10.cb6 cb6 11.Bb5; A3) 6...0–0 7.g3 (7.e3 Bb7 8.Qc2 a5 9.Bd3 ab4 10.Nd5 Nd5 11.cd5) 7...Be6 8.Bg2 Nc6 9.Qa4 Bd7 10.Qc2 h6 11.0–0; B) 6.e3 B1) 6...0–0 7.Nf3 (7.Be2 Bb7 8.Nf3 e4 9.Nd4 g6 10.b5 c5 11.bc6) 7...Bb7 8.Be2 e4 9.Nd4 g6 10.b5 c5 11.bc6; B2) 6...a5 7.Nf3 (7.Qf3 c6 8.b5 Bg4 9.Qg3 0–0 10.Be2 Bf5 11.Nh3) 7...0–0 8.Qb1 Bb7 9.Bd3 Na6 10.ba5 Nc5 11.Bc2; B3) 6...Bb7 7.Qb1 (7.Nf3 0–0 8.Qb1 Qd7 9.Qc2 e4 10.Nd4 c5 11.bc5) 7...a5 8.Nf3 Na6 9.ba5 ba5 10.Be2 Nc5 11.0–0; C) 6.Qc2 C1) 6...a5 7.Nf3 (7.b5 Nbd7 8.Nf3 g6 9.g3 Nc5 10.Bg2 0–0 11.0–0) 7...ab4 8.ab4 Ra1 9.Ba1 0–0 10.Nd5 Be6 11.Ne7; C2) 6...Bb7 7.e3 (7.Nf3 0–0 8.e3 a5 9.b5 Nbd7 10.Be2 e4 11.Nd4) 7...0–0 8.Nf3 a5 9.b5 Nbd7 10.Be2 e4 11.Nd4; C3) 6...0–0 7.Nf3 (7.e3 a5 8.Nf3 ab4 9.ab4 Ra1 10.Ba1 Na6 11.Qb1) 7...Bb7 8.e3 a5 9.b5 Nbd7 10.Be2 e4 11.Nd4; D) 6.g3 D1) 6...0–0 7.Bg2 (7.Nf3 a5 8.Bg2 ab4 9.ab4 Ra1 10.Qa1 Na6 11.Qa4) 7...c6 8.Nf3 Be6 9.d3 h6 10.0–0 Nbd7 11.Rc1; D2) 6...Be6 7.Bg2 (7.Nh3 h6 8.Bg2 c6 9.f4 0–0 10.0–0 Qc8 11.fe5) 7...Nbd7 8.d3 Rb8 9.Bc6 0–0 10.Nf3 h6 11.0–0; D3) 6...Bb7 7.Nf3 Nc6 8.Bg2 Nd4 9.0–0 Nf3 10.Bf3 Bf3 11.ef3.

5.a3 Bb7

6.Qc2 A) 6...Be7 7.Nf3 (7.e3 a5 8.b5 Nbd7 9.Nf3 e4 10.Nd4 Ne5 11.Be2) 7...a5 8.b5 0–0 9.g3 e4 10.Nd4 e3 11.Rg1; B) 6...Nc6 7.Nf3 (7.e3 g6 8.Nf3 Bg7 9.Be2 0–0 10.0–0 Qd7 11.h3) 7...Be7 8.e3 Qd7 9.Nd5 0–0 10.Bd3 g6 11.0–0; C) 6...a5 7.Nf3 (7.b5 Nbd7 8.Nf3 Nc5 9.e3 Be7 10.Be2 0–0 11.0–0) 7...Be7 8.b5 Nbd7 9.g3 e4 10.Nd4 Ne5 11.Nd5.

6.e3 A) 6...Nbd7 7.Qc2 (7.Nf3 e4 8.Nd4 Ne5 9.Be2 Be7 10.f4 ef3 11.Nf3) 7...a5 8.Nf3 e4 9.Ng5 Qe7 10.Nb5 Ne5 11.c5; B) 6...a5 7.Nf3 (7.b5 Nbd7 8.Nf3 Be7 9.Qc2 0–0 10.Be2 Nc5 11.0–0) 7...Be7 8.Be2 0–0 9.0–0 e4 10.Nd4 Nbd7 11.f4; C) 6...Be7 7.Nf3 (7.Qb3 0–0 8.Nf3 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1) 7...e4 8.Nd4 0–0 9.Be2 Nc6 10.Nc6 Bc6 11.0–0.

6.Nf3 Bf3 (better is 6...a5!?= 7.e3 (7.Qb3 Nbd7 8.e3 ab4 9.ab4 Ra1 10.Ba1 Qa8 11.Qd1) 7...Be7 8.Be2 0–0 9.0–0 e4 10.Nd4 Nbd7 11.f4; 6...Nbd7 7.e3 (7.Qc2 a5 8.e3 Be7 9.Be2 ab4 10.ab4 Ra1 11.Ba1) 7...e4 8.Nh4 Ne5 9.f4 ef3 10.Nf3 Be7 11.Be2; 6...Be7 7.g3 (7.e3 e4 8.Nd4 0–0 9.Qc2 Qd7 10.Be2 c5 11.bc5) 7...e4 8.Nd4 e3 9.f3 0–0 10.de3 Nc6 11.Bh3) 7.ef3 (7.gf3 a5 8.Nd5 Nbd7 9.Bh3 c6 10.Nf6 Nf6 11.Qa4) 7...Nc6 (7...Be7+/– 8.Bd3 0–0 9.0–0 Nc6 10.Nd5 Nd4 11.Bd4) 8.Ne2 (better is 8.Bd3!? Qd7 9.Nd5+/– Ne7 10.Qb3 Ned5 11.cd5; 8.Qa4 Qd7 9.Bd3 Nd4 10.Nb5 Ne6 11.Bf5) 8...Be7 9.d4 0–0 (9...Nd4!? 10.Nd4 ed4 11.Qd4+= (11.Bd4 0–0=)) 10.d5+/– Nb8 11.f4 (11.Nc3 c6+/–) 11...ef4 (11...Nbd7!?=) 12.Nf4+= Nbd7 (12...Re8 13.Be2 Nbd7+/–) 13.g3 (13.Bd3 Ne5+/–) 13...Ne5 (13...Re8 14.Be2 Ne4 15.0–0=) 14.Rc1 (14.Be2 g5 15.Nh3 g4+/–) 14...h6 (14...a5 15.Be2=) 15.Bg2+= Rb8 (15...Nfd7 16.0–0+/–) 16.b5 (better is 16.0–0!?+/–) 16...Nfd7+= 17.Bd4 (17.0–0 Nc5+=) 17...Bg5 18.Be3 (18.0–0 Bf4 19.gf4 Ng6=) 18...Nc5= 19.Bc5 (19.0–0 Qd7=) 19...bc5 (better is 19...dc5 20.0–0 Bf4 21.gf4 Ng6+=) 20.Qd2? (better is 20.0–0!?+=) 20...Re8 (20...Ng6 21.0–0 Qf6 22.Qc3 Nf4 23.gf4 Qf4 24.Qa5–/+) 21.0–0 Ng6 22.Rce1 (22.Rc3–/+) 22...Re1 (better is 22...Qf6!?–+) 23.Re1–/+ Bf4 24.gf4 Nh4 (24...Qf6!?–/+) 25.Qe3 (25.Qc3 Nf5=) 25...Ng2 (25...Qf6 26.Qe4+=) 26.Kg2= Qh4 (26...Qf6 27.Qe4=) 27.Qg3 (27.h3 Qf6=) 27...Qf6 28.Re4 Qb2 (28...Qf5 29.f3=) 29.Qd3 (better is 29.Qf3=) 29...f5?? (better is 29...Qf6=) 30.Re7+– Qf6 (30...Rf8 31.Rc7 Qd4 32.Qe3 Qc4 33.Qe6 Kh7 34.Qd6 Qe4 35.Kg3=) 31.Rc7 Ra8 32.a4 a5? (32...Qd8 33.Rb7 Qc8 34.Re7+–) 33.b6 (33.Qe3 Qg6 34.Qg3 Qf6+–) 33...Rb8 34.Rc6 (better is 34.Qb3 Qg6 35.Kf1 Kh7+–) 34...Qd8 (34...Kh7+–) 35.Qf5 (35.Qf5 Qf8 36.Qe6 Kh7 37.f5+–) 1–0. Aretxabaleta Saez,Julen – Laiz Ibanez,Hector, ch–ESP Abierto, Leon ESP, 2006.

6.h4 A) 6...Nbd7 7.Nf3 (7.e3 Be7 8.Nf3 0–0 9.Be2 e4 10.Nd4 Ne5 11.0–0) 7...Be7 8.e3 0–0 9.Be2 e4 10.Nd4 Ne5 11.0–0; B) 6...Nc6 7.e3 (7.Nf3 e4 8.Ng5 Ne5 9.Qc2 Nc4 10.Nb5 d5 11.d3) 7...e4 8.Nh3 Ne5 9.Qc2 a5 10.ba5 Ra5 11.Ng5; C) 6...Be7 7.Nf3 (7.h5 h6 8.Nf3 0–0 9.Qb3 Nbd7 10.g3 a5 11.Bg2) 7...0–0 8.Qb3 Nc6 9.Nd5 e4 10.Nd4 Nd4 11.Ne7.

5.Nf3 Bb7

6.d4 ed4 7.Nd4 g6 (7...Nbd7 8.e3=) 8.e4 Ne4 (8...Bg7!?+=) 9.Ne4 Be4 10.Ne6 fe6 11.Bh8 Nc6 (11...d5 12.Bc3+/–) 12.Bc3 Qe7 13.f3 1–0. Pandit – Budzul, email 4AMM–09, 1997.

6.d4 Nbd7 7.d5 g6 (7...c5!? 8.b5 Be7+=) 8.e4+= Bg7 9.Bd3 0–0 10.0–0 c5 11.dc6 (11.dc6 Bc6 12.Qd2+/–) 1–0. Woschkat,Karl_Heinz (1890) – Yigit,Aydin (2000), remoteschach.de, 2003.

4.Nc3 c6

5.a3 d5 6.cd5 cd5 7.Nf3 d4 8.Na2 Be6 9.e3 de3 10.fe3 (10.Be5? ef2 11.Ke2 Ng4 12.Bb8 Rb8–+ (12...Qb8?! 13.h3 Qd6 14.hg4 Ba2 15.Kf2–/+)) 10...e4 11.Nd4 Bg4 12.Qb1 Bd6 13.Nb5 Bf5 14.Nd6 Qd6 15.Bb5 Nc6 (15...Nbd7 16.0–0 Qe6 17.Bf6 gf6 18.Nc3+/–) 16.Rf1 (16.0–0 Qe6+=) 16...Qe6= 17.Bc6 bc6 18.Nc3 0–0 (18...Rd8!?=) 19.Ne2+/– (19.Ne2 Bg6 20.Bf6 gf6 21.Qb2+/–) 1–0. Woelfelschneider,Peter – Gabor, VCC, 2000.

5.e3 Be7 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nc3 c6).

5.e4 Be6 6.d3 (6.Nf3 Qb6 7.a3 c5=) 6...Be7 7.Nf3 h6 (7...Na6 8.a3=) 8.Be2 Nbd7 9.0–0 0–0 10.a4 (10.d4 Qb6 11.Rb1 Qb4=) 10...b6 (10...d5 11.ed5 cd5 12.cd5 Nd5 13.Nd5 Bd5 14.Ne5 Ne5 15.Be5 Bg2 16.Kg2 Qd5 17.Bf3 Qe5 18.d4 Qg5 19.Kh1+=) 11.d4 ed4 (11...c5 12.bc5 ed4 13.Nd4 Nc5 14.Nc6+=) 12.Nd4+= Qc7 13.f4 White prepares the advance b5 13...Nb8 14.Ne6 fe6 15.b5 Nbd7 16.Ba3 e5 17.bc6 Qc6 18.Nd5 Nd5 19.cd5 (worse is 19.ed5 Qc7=; worse is 19.Qd5 Qd5 20.cd5 ef4+=) 19...Qb7 20.Rb1 (20.Bb5 Qc7 21.Qg4 Nc5+/–) 20...Qc7 (20...Rf4 21.Rf4 ef4 22.Qc1=) 21.fe5 Ne5 22.Qb3 Rac8 23.Bb2 Rf1 24.Rf1 Bf6 25.g3 (25.Bb5 Qe7+=) 25...Qe7 (25...Qc2 26.Qc2 Rc2 27.Be5 Be5 28.Bg4=) 26.Rc1 Qd7 27.Rc6 Kh8 (27...Nc6?? 28.dc6 Qf7 29.Bc4+–) 28.Be5 Be5 29.Bb5 (29.Qc4 Rf8=) 29...Qg4 30.Rc8 Qc8 31.Qf3 Kh7 32.Kg2 Qc2 33.Kh3 Qc8 (33...Qc7 34.Bc6=) 34.Qf5+= Qf5 35.ef5 Kg8 36.Kg4 Kf7 37.Bd7 ˝–˝. De Visser,Arno – van Meggelen, Hoogoven, 1987.

5.e4 Bg4 6.Be2= Qd7 (6...Be6 7.Nf3=) 7.h3 (7.Bg4 Ng4 8.Nf3 f5+=) 7...Be2 (7...Be6 8.Nf3+=) 8.Nge2 (8.Qe2 Na6 9.a3 Nc7=) 8...Na6 (8...d5 9.ed5 Bb4 10.d4=) 9.a3 Nc7 (9...d5 10.cd5 cd5 11.ed5 Nd5 12.d4 Nc3 13.Bc3=) 10.0–0 (10.d4 Be7+=) 10...Be7 (10...Qe6 11.d3+=) 11.d4 ed4 (11...0–0 12.Qd3+=) 12.Nd4 0–0 (12...Ne6 13.Nf5+/–) 13.Nf5 (13.Qf3 Rfe8+=) 13...Qe6 (13...Rfe8 14.Qf3+=) 14.Qd3 g6 (14...Rfe8 15.Rad1 Rad8 16.Rfe1+/–) 15.Ne7+/– Qe7 16.Rad1 Rad8 17.Rfe1 (17.Qd4 c5 18.Qe3 Rfe8+/–) 17...Ne6 18.Qe3 Nh5 (18...a6 19.a4+/–) 19.e5 (19.Qa7 Nhf4+–) 19...de5+/– 20.Qe5 White creates threats along the open e–file (worse is 20.Qa7 Rd1 21.Rd1 Nhf4=) 20...Qf6 21.Qe3 (21.Ne4 Qe5 22.Be5 Rd1 23.Rd1 f5+/–) 21...Qg5 (better is 21...Nhf4!?+=) 22.Qg5+/– (22.Qa7 Nef4 23.g4 Nh3 24.Kf1 Qg4–+) 22...Ng5 23.Re7 Rd1 24.Nd1 Rd8 (24...Rb8 25.Be5 Rd8 26.Nb2+/–) 25.Nc3 (better is 25.Ne3 b6 26.Ra7+–) 25...Kf8? (better is 25...Rb8!?+/–) 26.Rb7+– Rd2 (26...a6 27.Rc7+–) 27.Na4 (better is 27.Bc1 Rc2 28.Bg5 Rc3 29.g4+– (29.Ra7?! Rc4 30.g4 Nf4 31.Bh6 Ke8+–)) 27...Ne4 28.Nc5 (28.Ra7!? Rd1 29.Kh2 Nf2 30.g4+–) 28...Rd1+/– 29.Kh2 Nf2 Threatening mate: Rh1 30.g4 Nf4?? (30...Rd2 31.gh5 Nd3 32.Kg3 Nb2 33.hg6 hg6 34.Ra7 Nc4 35.a4+=) 31.Kg3 (better is 31.Bf6 Ne6 32.Rb8 Nd8 33.Bd8+–) 31...N2h3+/– 32.Bf6 Threatening mate... how? 32...Rg1 33.Kh4 (33.Kf3 Rf1 34.Ke4 Re1 35.Kd4 Ne6 36.Ne6 Re6+/–) 33...g5 34.Bg5 Ng5 (34...Nf2 35.Bh6 Ke8 36.Rb8 Ke7 37.Bg5 f6 38.Bf6 Kf6 39.Rf8 Ke5 40.Rf5 Kd4 41.Rf4 Ke3 42.Rf7 Ng4 43.Ra7+=) 35.Kg5 Nh3 36.Kh4 (36.Kh6!? a6 37.Ra7+/–) 36...Nf2+= The isolani on g4 becomes a target 37.Nd7 Kg7 (37...Kg8!?+=) 38.Ne5+/– Rh1 (better is 38...Kf6!? 39.Rf7 Ke5 40.Rf2 Rh1 41.Kg3 Rg1 42.Kh3 Ra1+/–) 39.Kg3+– Ne4 40.Kg2 Ra1 (40...Nd6 41.Ra7 (41.Nc6?! Rc1 42.Rd7 Rc2 43.Kh3 Nc4+/–) 41...Re1 42.c5 Re5 43.cd6+–) 41.Rf7 Kh6 42.Ra7 (42.Nc6?! Ra2 43.Kf1 Nd2 44.Ke2 Nc4 45.Kd3 Na3 46.Ra7 Rg2+–) 42...Kg5 43.Kf3 (43.Nc6?! Ra2 44.Kf1 Nd2 45.Ke2 Nc4 46.Kd3 Na3+–) 43...Nd2 (43...Nd6 44.Ra6+–) 44.Ke3 Nf1 (44...Nb3 45.Kd3 Rh1 46.Nc6 Kg4 47.a4+–) 45.Kd4 h6 46.Nc6 (46.Rg7 Kf4 47.Rf7 Kg3 48.Rf3 Kh4+–) 46...Kg4 47.b5 (47.a4 Rd1 48.Kc5 Nd2+–) 47...Rd1 48.Kc5 Nd2 49.Nb4 (better is 49.Rg7!? Kf4+–) 49...Rc1 50.Rg7 Kf5 51.Rf7 Ke4 (51...Kg5 52.b6 Rc4 53.Kd6 Rd4 54.Kc7 Rc4 55.Nc6+–) 52.Re7 (52.b6!? Nc4 53.b7 Na5 54.Kb5 Nb7 55.Rb7 h5+–) 52...Kf5 53.Nc6 (53.Re5 Kf6 54.Rh5 Nc4 55.Rh6 Kg5+–) 53...Nc4 54.a4 Nb2 55.Kb4 Nd3 56.Kb3 Nc5 57.Ka3 h5 58.a5 (58.Re5 Kg4+–) 58...h4 59.Nd4 (59.a6 Na6 60.Kb2 Rc4+–) 59...Kf6 (59...Kg5 60.Rh7+–) 60.Re3 Rc4 61.Nc6 Rg4 62.Nb4 White plans a6 (62.Re8 Ne4+–) 62...Rg5 63.a6 Nd7 64.Rf3 (64.Rd3 Ke6 65.a7 Nb6+–) 64...Ke6+/– 65.a7 (65.Nc2 Nb6+–) 65...Nb6 66.Nc6 Rg3 67.Nd4 Kd7 68.Kb4 Rf3 69.Nf3 h3 70.Ka5 Na8 71.Ka6 h2?? (better is 71...Kc7+/–) 72.Nh2+– (72.Nh2 Nc7 73.Kb7 Nb5 74.a8Q Nd6 75.Kb6+–) 1–0. Czeitschner,Roland (1765) – Paulsen,Eckart (1635), 21sen.Woerishofen op, 2005.

5.Nf3 d5 6.Ne5 d4=.

5.Nf3 Be7 6.g3 0–0 7.Bg2 Nbd7 8.0–0 Qc7 9.Rc1 b6 10.d4 e4 11.Ng5 d5? 12.cd5+– Bb4 13.Nb5!! Qd8 14.dc6 Ba6 15.cd7 Bb5 16.Ne4 Ne4 17.Be4 Rb8 18.Qc2 Qd7 19.Bh7 Kh8 20.Bf5 Qd6 21.Qe4 Bd2 22.Rc2 Bh6 23.d5 Rbe8 24.Qg4 Kg8 25.a4 Ba4 26.Qa4 a5 27.Rd1 Rd8 28.Qg4 Qb4 29.Qb4 ab4 30.Rc6 Bg5 31.Rb6 Be7 32.h4 Bd6 33.Rc1 g6 34.Bd3 Rfe8 35.Rcc6 Be5 36.Be5 Re5 37.e4 Kg7 38.Rb4 Rd7 39.Bc2 f5 40.Rbc4 fe4 41.Be4 g5 42.hg5 Rg5 43.Rc7 Rf7 44.Kg2 Kf8 45.Rf7 Kf7 46.f4 Rg8 47.Kf3 Rd8 48.g4 Kf6 49.Rc6 Kf7 50.g5 Kg7 51.f5 Kf7 52.Kf4 Rd7 53.f6 Rd8 54.g6 Kg8 55.Ke5 Kf8 56.d6 Kg8 57.Rc7 Re8 58.Re7 Rf8 59.Bd5 Kh8 60.Rh7 1–0. wlittle (2300) – smyslovvchess (2270), net–chess.com, 2004.

5.Nf3 Bg4 6.a3 Nbd7 7.d4 Be7 8.h3 Bf3 9.gf3 0–0 10.Rg1 Nh5 (10...Re8 11.Qd2=) 11.Qd2 f5 12.d5 Kh8 13.e3 a5 14.Bd3 ab4 15.ab4 Ra1 16.Ba1 Qa8 17.Bb2 Qb8 (17...f4 18.dc6 bc6 19.e4=) 18.Kf1 Nb6 19.f4 ef4 (19...Nf6 20.Be2= (worse is 20.Bf5 Nc4 21.Qe2 Nb2–/+)) 20.ef4 Bf6 21.dc6 bc6 22.Be2 Qe8 (better is 22...Nc4 23.Bc4 Qb4=) 23.Qd6+/– Be7? (better is 23...Qc8 24.Qd2 g6+/–) 24.Qd4+– Bf6 25.Qb6 (25.Qb6 Nf4 26.Qe3 Ne2 27.Qe2+– (27.Ne2?! Qe3 28.fe3 Bb2+=; 27.Ke2?! Qh5 28.Kd2 Qh4+–)) 1–0. orane (1940) – gaila (1700), Live Game Caissa's Web, 2003.

5.g3 d5 6.cd5 cd5 7.Nf3 =+.

5.g3 Be6 6.d3 Be7 7.Bg2 0–0 8.e3 Qb6 9.a3=+ c5 10.Na2 cb4=+ 11.ab4 Nc6 12.Bc3 d5 13.c5 Qb5 14.Ne2 b6 15.d4=+ ed4 16.ed4 Bg4 17.f3 Bf5 18.0–0 bc5 19.dc5 Bd3 20.Re1 Rad8 21.Nd4 Nd4 22.Bd4 Bc4?? 23.Re7+– Ba2 24.Ra2 Qb4 25.Raa7 Qb5 26.Bf1 Qc6 27.Rac7 Qa8 28.Qb3 Rb8 29.Qc3 Nh5 30.c6 Qa2 31.Rb7 Rbc8 32.Bh3 Rfe8 33.Rf7 Rc6 34.Rg7 Ng7 35.Rg7 Kf8 36.Bc5 (36.Bc5 Re7 37.Be7 Ke8 38.Qc6#; 36.Qb4 Rc5 37.Qc5 Re7 38.Qe7#) 1–0. alaamattar (2215) – claudiomatto (2015), net–chess.com, 2007.

5.e4 d5

6.cd5 Bb4 7.Nf3+=.

6.ed5 Bb4 7.Qe2 =+.

4.Nc3 d5

5.cd5 Bb4?? 6.Qa4+– Bd7 (6...Nbd7 7.Qb4 a5 8.Qh4+–) 7.Qb4 a5 8.Qb3 b5 (8...b6 9.Nd1+–) 9.Nb5 Bb5 10.Qb5 Nbd7 11.Ba3 (11.Be5!? 0–0 12.Bc3 Nb6+–) 11...Rb8 12.Qc6 Rb6 13.Qc4 e4 14.f3 Ne5 (14...ef3 15.ef3 Ne5 16.Qa4 Qd7 17.Qa5 Nd5 18.Qa8 Qd8 19.Qd8 Kd8 20.d4+–) 15.Qc3 Nd5 (15...Ned7+–) 16.Qe5 Ne7 17.Qg7 (17.Qg7 Rg8 18.Qh7+–) 1–0. Anonymous – Anonymous, internet, 2011.

5.cd5 Nd5

6.Qa4 Nc6 7.Nd5 Qd5 8.b5 Nd4 9.e3 Ne6 10.Nf3 Nc5.

6.b5 A) 6...a6 7.Nf3 Nc3 (7...ab5 8.e4 Nc3 9.Bc3 b4 10.Be5) 8.Bc3 e4 9.Nd4 ab5 (9...Nd7 10.e3) 10.Qb1 Qd5; B) 6...Be6 7.Nf3 f6 8.Qc2 a6 9.Nd5 (9.d4 Nc3 10.Bc3) 9...Qd5 10.e4 Qc5; C) 6...Nc3 7.Bc3 Qd5 (7...Nd7 8.Nf3 e4 9.Nd4 Nc5 10.Qc2) 8.Nf3 (8.Qb3 Qb3 9.ab3 f6 10.Nf3) 8...e4 9.Nd4 Nd7 10.Qb3 Qb3; D) 6...f6 7.Nf3 (7.Qb3 Be6 8.Nf3 Kf7 9.Qc2 Nc3 10.Bc3) 7...Be6 8.e4 (8.Qc2 Be7 9.e4 Nb6 10.Be2) 8...Nc3 9.Bc3 c5 10.Be2= (10.Nh4 Nd7).

6.Nd5 Qd5 7.a3 Be6 8.Qc2 Bd6 (8...a5 9.Nf3 ab4 10.ab4 Ra1 11.Ba1+=) 9.e4= Qb3 10.Rc1 Qc2 11.Rc2 Bb3 12.Rc1 0–0 13.Nf3 Nd7 14.Bc4 (14.d4 Rfe8 15.de5 Ne5+=) 14...Bc4= 15.Rc4 b5 16.Rc2 a5 17.d4 ab4 18.ab4 Bb4 19.Ke2 c5 20.Ne5 Ne5 21.de5 c4 22.Rd1 (22.Bd4 Ra4+=) 22...Ra2–/+ 23.Ra1 Rfa8 24.Ra2 Ra2 25.Kd1 c3?? (better is 25...Ra8–/+) 26.Bc3+/– Rc2 27.Kc2 Bc3? (better is 27...Bc5 28.f4 Kf8+/–) 28.Kc3+– Kf8 29.Kb4 Ke7 30.Kb5 Ke6 31.f4 f6 (31...g5 32.g3 Kd7+–) 32.ef6 gf6 33.Kc5 h5 34.Kd4 (34.Kd4 Kf7 35.Kd5+–) 1–0. Weber,E – Roussey,Jacques, FRA–chT4, 2003.

6.Nf3 A) 6...Nb4 7.Ne5 N8c6 8.Nc6 Nc6= 9.e3 Bb4 (9...Be6 10.Nb5) 10.a3 (10.Qc2 Be6) 10...Be7; B) 6...Nc3 7.Bc3 e4 B1) 8.Ne5 f6 9.Nc4 Kf7 (9...Na6 10.Qb1) 10.Qb1 Qe7; B2) 8.Nd4 Qd5 9.f3 Nc6 10.Nc6 Qc6; C) 6...f6 7.b5 (7.Rc1 Be6 8.Nd5 Bd5 9.e3 Nc6 10.b5) 7...Be6 8.e4 (8.Qc2 a6 9.Nd5 Qd5 10.e4) 8...Nf4 (8...Nc3 9.Bc3 Bd6 10.d4 Nd7) 9.d4 Nd7 10.d5+/– (10.g3 Ng6).

5.cd5 Bd6

6.Qb3 A) 6...0–0 7.Nf3 a5 8.Nb5 ab4 (8...Na6 9.a3 e4 10.Ng5) 9.Nd6 (9.Ne5 Na6 10.Nd6) 9...cd6 10.d4= (10.a3 Nbd7); B) 6...Na6 7.a3 (7.Nf3 0–0 8.a3 e4 9.Nd4 Be5 10.e3) 7...0–0 8.Nf3 e4 (8...Bd7 9.e3 e4 10.Nd4) 9.Nd4 Bd7 (9...Be5 10.e3) 10.e3 Re8; C) 6...a5 7.ba5 (7.Nf3 ab4 8.Nb5 0–0 9.Ne5 Na6 10.Nd6) 7...0–0 8.Nb5 Na6 9.Rc1 (9.Qc4 e4 10.Nh3) 9...Nc5 10.Qc2+= (10.Qc4 Ra5).

6.e3 A) 6...Nbd7 A1) 7.a3 0–0 (7...a5 8.Nf3 0–0 9.Be2 ab4 10.ab4) 8.Nf3 a5 9.Bd3 (9.Qb3 e4 10.Ng5) 9...Qe7 10.Qb1 Nb6; A2) 7.Qb3 a5 8.a3 0–0 9.Nf3 e4 10.Ng5; A3) 7.Nf3 0–0 8.a3 a5 A31) 9.Bb5 Nb6 (9...ab4 10.ab4 Ra1) 10.0–0 Nbd5; A32) 9.Bd3 Qe7 10.Qb1= (10.Nb5 e4); B) 6...a5 B1) 7.b5 0–0 8.Nf3 Nbd7 9.Be2 (9.Qc2 Re8 10.Bd3) 9...e4 10.Ng5 Nc5; B2) 7.ba5 Ra5 (7...0–0 8.Nf3 Ra5 9.Be2 Nd5 10.Nd5) 8.Nf3 (8.Nb5 Nd5 9.Qb3 Be6 10.Bc4 c6) 8...0–0 9.Nb5 (9.Qb3 Nbd7 10.Nb5 e4; 9.Bc4 Nbd7 10.0–0) 9...Nd5 10.Qb3 Be6; C) 6...Bf5 C1) 7.Nf3 0–0 8.Qb3 (8.Be2 c6 9.Qb3 cd5 10.Nd5) 8...a5 9.ba5 Nbd7 10.Qb5 c6; C2) 7.Qb3 a5 8.ba5 0–0 (8...Nbd7 9.Qb5 0–0 10.Nf3) 9.Nf3 Nbd7 10.Qb5 c6+= (10...Qc8); D) 6...0–0 7.Nf3 D1) 7...Nbd7 D11) 8.a3 a5 9.Bb5 (9.Be2 ab4 10.ab4) 9...ab4 (9...Nb6 10.0–0) 10.ab4 Ra1; D12) 8.Be2 Bb4 9.Qb3 a5 10.Qc2; D13) 8.Qb3 a5 9.a3 e4 10.Nd4 (10.Ng5 Re8) 10...Nb6; D2) 7...e4 8.Nd4 (8.Ng5 Bf5 9.Qc2 Re8 10.h4) 8...Bb4 9.Qc2 (9.Qb3 a5 10.Be2) 9...Nbd7 10.Rc1= (10.Bb5 Nc5).

6.Nf3 0–0 7.Qb3 A) 7...a5 8.Nb5 (8.ba5 Ra5 9.Nb5 Na6 10.Qc4) 8...Na6 (8...ab4 9.Ne5 Na6 10.Nd6) 9.a3 Re8 (9...e4 10.Ng5) 10.e3 e4; B) 7...Na6 8.a3 e4 9.Nd4 Be5 10.e3 Qd6.

4.Nc3 Bd7

5.Qb3 Be7 6.Nf3 0–0 7.h3 Nc6 8.a3 e4 9.Nh2 Nd4 10.Qd1 Nc6 (10...Ne6 11.Ng4–/+) 11.e3 (11.Qb3!?=) 11...Ne5 (11...a5 12.Qc2 ab4 13.Ne4–/+) 12.Be2 c6 (12...Be6 13.Qc2 Nc4 14.Bc4 Bc4 15.Ne4 Ne4 16.Qc4+=) 13.Qc2 Bf5 14.0–0 Bg6 15.c5 (15.Rfd1 Bf5+=) 15...Nd3 16.cd6 Bd6 17.Bd3 ed3 18.Qb3 Bh2 (18...Re8 19.Nf3–/+) 19.Kh2+= Qd6 20.Kg1 Rfd8 21.Qc4 Qe7 22.f3 Nh5 23.Rf2 Ng3 24.Qg4 Nf5 25.Ne4 Rd5 26.Ng3 Ng3 27.Qg3 Rad8 (27...Rg5 28.Qf4+=) 28.f4 f6 29.Bd4 b6 30.Rc1 c5 31.bc5 bc5 32.Bc3 Qf7 33.Rb1 Qc7 (better is 33...Be4=) 34.Ba5?? (better is 34.Qf3=) 34...Qa5–+ 35.Rb7 R5d7 36.Rd7 Rd7 37.f5 Bf7 38.e4 (38.Qb8 Rd8 39.Qb2 Bd5–+) 38...c4 39.e5 (39.Rf1 c3–+) 39...Qe5 40.Qf3 Bd5 41.Qd1 Re7 (41...Re7 42.a4 Qd4–+) 0–1. Pagalis,Giorgos – Lakakis,Ioannis (2020), Patras op, 2000.

5.d4 Nc6 6.b5 (6.Nf3!?+=) 6...Nd4–/+ 7.e3 Nf5 (7...Ne6 8.Nf3–/+) 8.Bd3 c6 9.a4 (9.Nf3!?+=) 9...d5–/+ 10.bc6 bc6 11.cd5 cd5 12.Bf5 Bf5 13.Nb5? (13.Nf3 Rb8 14.Nb5 Qa5 15.Bc3 Bb4 16.Bb4 Qb4 17.Qd2 Qd2 18.Nd2 Kd7 19.Na7 Rhe8–/+) 13...Qa5 (better is 13...a6 14.Nc3 Rb8–+) 14.Bc3 Bb4 15.Qd2 Bc3 16.Qc3 Qc3 17.Nc3 0–0 (17...Rc8 18.Nge2–+) 18.Nge2 (18.Nf3 Rfe8–/+) 18...Bd3 19.0–0 Be2 20.Ne2 Ne4 (20...Rfc8 21.Rfc1–/+) 21.f3 Nc5 22.Rfc1?? (better is 22.Ra2–/+) 22...Nb3–+ 23.Rcb1 Na1 24.Ra1 a5 25.Rb1 (25.f4 f6–+) 25...Rab8 26.Rd1 Rfd8 27.Nc3 (27.h3 d4! 28.ed4 ed4–+) 27...d4 28.ed4 ed4 29.Nb5 d3 (29...Rbc8 30.Ra1–+) 30.Kf2 Rbc8 31.Ke3 d2! 32.Rd2 Rd2 33.Kd2 Rc4 34.Nc3 f5 35.Kd3 Rb4 36.g3 g5 37.h3 (37.Nd5 Rb3 38.Ke2 Kf7–+) 37...h5 38.Kd2 (38.Nd5 Rb3 39.Ke2 Kf7–+) 38...Kf7 39.Kd3 (39.Ke3 h4 40.g4 Ke6–+) 39...Ke6 40.Kd2 (40.Ke3 Ke5 41.h4 Rc4–+) 40...Ke5 Black intends f4 41.Kd3 (41.Nb5 Ra4 42.Na7 f4–+) 41...Rd4 42.Ke3 (42.Ke2 f4 43.gf4 Kf4–+) 42...f4 43.gf4 Rf4 44.Kf2 h4 (better is 44...Rc4 45.Nb5–+) 45.Kg2 (45.Ke3–+) 45...Rc4 46.Nb5 Ra4 47.Kf2 Kf4 48.Nc3 (48.Ke2 Ra2 49.Kd3 Rf2–+) 48...Rc4 49.Ne2 (49.Nd5 Ke5 50.Ne3–+) 49...Ke5 50.Ke3 a4 51.Kd3 Rb4 52.Nc3 (52.Nc1 Rb3! 53.Ke2 Rb2 54.Kd3–+) 52...a3 53.Kc2 Kf4 (better is 53...Rc4 54.Kb3 Rc3 55.Kc3–+) 54.Nd5 Kf3 55.Nb4 g4 56.hg4 Kg4 57.Nd3 Kg3 58.Ne5 h3 0–1. Baer,Cy (1895) – Kulawik,Christian (1665), remoteschach.de, 2007.

5.d4 ed4 6.Qd4 Nc6 7.Qd2 Nb4 8.Nf3 –/+.

5.Nf3 h6 6.e4 Be6 7.d4+= ed4 8.Nd4 Qe7 9.Be2 Nbd7 10.Nd5+/– Nd5? 11.cd5+– Bd5 12.ed5 0–0–0 13.Rc1 g5 14.Nf5 Qe4 15.Ng3 Qb4 16.Bc3 Qf4 17.Bh8 f6 18.0–0 Be7 19.Re1 Rh8 20.Bg4 Kd8 21.Bd7 Kd7 22.Qc2 a6 23.Qc7 (23.Qc7 Ke8 24.Qe7#) 1–0. guest1034 – guest1148, ICC, 1999.

5.e3 Be7

6.Nf3 0–0 7.d4 ed4 8.Nd4 c5 9.Nc2 Qb6 10.b5 Re8 11.a4 a5 12.Be2 Na6 13.ba6 Qb2 14.Qd2 Qb6 (14...Ra6? 15.Rb1 Qb1 16.Nb1 Ba4 17.Nc3+–) 15.ab7 Qb7 16.Nb5?? The backward pawn on d6 becomes a target (better is 16.Bf3 Bc6 17.Rb1+=) 16...Bb5 (16...Qg2 17.Rf1 Ne4 18.Qd5–+) 17.ab5 Qg2 18.0–0–0 (18.Rf1 Ne4 19.Qd5 Bf6–+) 18...Ne4 (18...Qf2!? 19.Rdf1 Qh4 20.Rf4–+) 19.Qd5 Qg6?? (better is 19...Qf2 20.Bh5 Nc3–/+) 20.Bd3 Nc3 (20...Bf6!? 21.Rhg1 Nc3 22.Bg6 Nd5 23.Bh7 Kh7 24.Rd5 a4+=) 21.Qa8+/– Ra8 22.Bg6 Nd1 (22...fg6!? 23.Rd3 Na4+/–) 23.Be4+– (23.Kd1 fg6 24.Ke2 a4+=) 23...Rb8?! (23...Nf2 24.Ba8 Nh1 25.Bh1 Bd8+–) 24.Rd1 g6 25.Bd5 Kg7 26.Rd3 f5 27.Ra3 Bd8 28.Na1 Bh4 29.f3 Be1 30.Nc2 Bb4 31.Nb4 ab4 32.Ra6 Rd8 (32...Kh6+–) 33.b6 (33.b6 Rb8 34.b7+–) 1–0. Dumontelle,Joe – Milinkovic,M, Sudbury Chess Championship, 2003.

6.Nf3 0–0 7.d4 ed4 8.Nd4 c5 9.bc5 dc5 10.Nf3 Bc6 11.Be2 Qb6 12.Rb1 Qa5 13.0–0 Rd8 14.Qc2 Na6 15.a3 Nc7 16.Rfd1 Ne6 17.h3 (17.Ne5 Be8+/–) 17...a6 (17...b6 18.Qf5+=) 18.Rd8 Rd8 19.Rd1 h6 (19...Rd1 20.Qd1 Qb6 21.Ba1=) 20.Rd8 Qd8 21.Ne5 Be8 22.Bf3 b5 23.cb5 ab5 24.Bc6 (24.Nc6 Bc6 25.Bc6 b4 26.ab4 cb4=) 24...b4 25.Be8 Qe8 (worse is 25...Ne8 26.ab4 Bf6 27.Nd3+/–) 26.ab4 cb4 27.Ne4 Ne4 28.Qe4 Ng5 29.Qg4 f6 (29...Bf6!? 30.Nc4 Qd8+=) 30.h4 fe5 31.hg5 Bg5 32.Qb4 Bf6 33.Qc4 Kh8 34.Qe4 Attacking the isolated pawn on e5 34...Qb5 35.Qc2 Qb4 36.Qc8 Kh7 37.Qf5 Kg8 38.Be5 Qe1 39.Kh2 Be5 40.Qe5 Qf2 41.Qe8 Kh7 42.Qe4 ˝–˝. Rush,Bradley – SimĄk,Franticek, SF–2011–0–00125, 2011.

4.Nc3 Be6

5.d3 Be7 6.Nf3 0–0 7.e4 h6 8.Be2 Nbd7 9.0–0 Nh7 10.a4 Ng5 11.Ng5 Bg5 12.Bg4 f5 13.Bh3 Qe7 14.ef5 Bf5 15.Bf5 Rf5 16.Nd5 Qd8 17.Qg4 Rf7 18.d4 c6 19.Ne3 ed4 20.Bd4 Bf6? (20...c5 21.Bc3=) 21.Bf6?? (better is 21.Nf5 Kh8 22.Nd6+–) 21...Qf6= 22.Rad1 Qc3 23.Nf5 Nf6?? (23...Ne5 24.Qe4 Nc4= (24...Qb4 25.Nd6 Re7 26.f4+–)) 24.Qg6+– Kf8 25.Nd6 Re7 26.Nf5 Rf7 27.Rfe1 Rd7 28.h3 Rd1?? (28...b6 29.b5 c5 30.a5+–) 29.Rd1 (29.Qg7#) 29...Qc4?? (better is 29...Ne8 30.Qh7 Qc4+–) 30.Qg7 (30.Qg7 Ke8 31.Qe7#) 1–0. Bango,Dominik – Sustek,Radoslav (1670), Stara Lubovna SVK, Boys Ch U12, 2012.

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be6 5.Nc3).

5.e4 Nbd7 6.Nf3 g6 (6...a5 7.b5=) 7.d4 c6 8.d5 Bg4 9.Be2 Qb6 10.a3 c5 11.b5 a6 12.a4 ab5 13.ab5 Ra1 14.Qa1 Bg7 15.Qa8 Ke7 16.Qa4 Re8 17.h3 Bf3 18.Bf3 Kf8 19.0–0 Kg8 20.Ra1 h5 21.g3 Kf8 22.Qb3 Rb8 23.Na4 Qd8 24.Nc3 Nb6 (24...Qb6 25.Bc1 Kg8+/–) 25.Ra7 Kg8 26.Qa2 Ra8 27.Be2 g5 (27...Ra7 28.Qa7 Qc7 29.Qa5+=) 28.Bc1 Qb8? (better is 28...g4+/–) 29.Ra8+– Qa8 30.Qa8 Na8 31.Bg5 Nb6 32.Bf6 (32.Kg2 Nbd7+–) 32...Bf6 33.h4 Kg7 (33...Bg7 34.Kg2+–) 34.Kg2 Kg6 35.Kf3 Kh6 36.Ke3 Nd7 37.f3 b6 38.Na4 Kg6 39.Nc3 Kh6 40.Nd1 Kg6 41.f4 (better is 41.Kd3!?+–) 41...ef4+/– 42.Kf4 Be5 43.Kf3 f5 (43...Bd4!?+/–) 44.ef5+– Kf5 45.Ne3 Kg6 46.g4 Bf6 (46...hg4 47.Ng4 Bd4+–) 47.Bd3 Kg7 48.g5 Ne5 49.Ke2 Nd3 (49...Be7 50.Ng2+–) 50.Kd3 (better is 50.gf6!? Kf6 51.Kd3 Ke5+–) 50...Be5 51.Ke4 Bg3 (51...Kg6+–) 52.Nf5 1–0. Baer,Cy (1895) – Huwer,Johannes (1765), RSS5E–28 remoteschach.de, 2008.

5.e4 Nc6

6.b5 Nd4 7.d3 Be7 8.Be2 0–0 9.Nf3 Ne2 10.Qe2 Bg4 11.h3 Bh5 12.a4 c6 13.g4 Bg6 14.Nh4 cb5 (14...Nd7 15.Ng6 fg6 16.Rb1+=) 15.ab5 Ne4?? (better is 15...a6=) 16.Ng6+– Nc3 17.Ne7 Qe7 18.Bc3 b6 (18...a6 19.b6+–) 19.0–0 Rac8 20.f4 f6 21.Bb4 Rfd8 22.Qe4 g6 (22...Qf7 23.g5+–) 23.fe5 fe5 24.Rf3 Rd7 (24...Kg7 25.Qd5+–) 25.Raf1 Rcd8 26.Qd5 Kh8 (26...Kg7 27.Rf7! Qf7 28.Rf7 Rf7 29.Bd6+–) 27.Kg2 (better is 27.Rf7 Qe8 28.Rd7 Rd7 29.Bd6 h5+–) 27...h5 28.Rf7 Qg5 (28...Qe8 29.Rd7 Rd7 30.Bd6+–) 29.Rf8 (better is 29.Bd6 Rf7 30.Rf7+–) 29...Kh7 30.Qg8 (30.Rd8!? Rd8 31.Qf7 Kh8 32.Bd6 hg4+–) 30...Kh6 31.R1f2 hg4 (31...Rg7 32.Qe6 Rf8 33.Rf8 hg4+–) 32.Bd2 gh3 33.Kh2 Rf8 (33...Qd2 34.Rd2 Rg7 35.Qh8 Rh7+–) 34.Qf8 Kh5 (34...Kh7 35.Bg5 Rg7 36.Rf3 a6 37.Rh3) 35.Bg5 (35.Qh8 Rh7 36.Qh7 Qh6 37.Qh6 Kg4 38.Qh3) 35...Kg5 (35...Rh7 36.Be3 g5 37.Qf3 g4 38.Qf5 Kh4 39.Qh7) 36.Qf6 Kh6 (36...Kh5 37.Rf3 Rh7 38.Rg3 a6 39.Qg5) 37.Qh8 (37.Rf3 Kh5 38.Rh3 Kg4 39.Rh4) 37...Rh7+– 38.Qh7! Kh7 39.Rf7 Kh6 40.Ra7 Kh5 41.Kh3 g5 42.Rb7 g4 43.Kg3 Kg5 44.Rb6 Kf5 45.Rd6 e4 46.de4 Ke5 47.c5 (47.Rd5 Kf6 48.b6 Kg7 49.b7 Kf6 50.b8Q Kf7 51.Qc7 Ke6 52.Rd6 Ke5 53.Qe7) 47...Ke4 48.b6 Ke5 (48...Kf5 49.b7 Ke4 50.b8Q Ke5 51.Qb7 Kf5 52.Qd5) 49.b7 Ke4 (49...Kf5 50.b8Q Ke5 51.Qb7 Kf5 52.Qd5) 50.b8Q Ke3 (50...Ke5 51.Qb7 Kf5 52.Qd5) 51.Qe8 1–0. Humeau,Cyril (2155) – Schwarzkopf,Ludwig, Bastiais Master 7th, 2008.

6.b5 Nd4 7.Nf3 c5 (7...a6 8.ba6 Ra6 9.Nd4 ed4 10.Nd5 Ne4 11.Qe2=) 8.h3 (8.bc6 bc6 9.Rb1 Be7=+) 8...Be7 9.Be2 (9.Bd3 0–0=+) 9...Nf3–/+ 10.Bf3 Bc4 11.d3 ( 11.Be2 Be6 12.0–0–/+) 11...Bb5?? ( 11...Be6–/+) 12.Nb5+/– Qa5 13.Nc3 0–0 14.0–0 b5 15.Qb3 b4 16.Ne2 Qb5 17.a4 Qd7 18.Ng3 a5 19.Rfd1 Rae8 20.Rac1 g6 21.Be2 Kh8 22.d4! ed4 23.Bb5 Qe6 24.Qe6 fe6+= 25.Be8 Ne8 26.Ne2 e5 27.Rf1 Ng7 28.f4 ef4 29.Nf4+/– Bg5?? 30.Ng6!+– hg6 31.Rf8 Kh7 32.Rd1 Be3 33.Kh2 c4 34.Bd4 Bd4 35.Rd8?? c3?? 36.Rd6 Be5–+ 37.g3 Bd6 38.Rd6 c2 39.Rc6 b3 40.e5 b2 41.Rc2 b1Q (41...b1Q 42.Rf2 Qe4–+) 0–1. coloplayah (2035) – sirky (2115), net–chess.com, 2005.

5.e4 Be7

6.Nf3 0–0 7.Qc2 Nc6 (7...Bg4 8.Be2+=) 8.a3 (8.b5 Na5 9.Qa4 c5+=) 8...Nh5 (8...Re8 9.b5 Na5 10.Nd5=) 9.Nd5= f5 (9...a6 10.d4 ed4 11.Rd1=) 10.ef5 Bf5 11.Bd3 (worse is 11.Ne7 Qe7 12.Qb3 Be4–/+) 11...Bd3 12.Qd3 (12.Ne7? Qe7 13.Qd3 e4 14.Qd5 Kh8–+) 12...Nf4 13.Nf4 Rf4 14.g3 (14.Qd5 Kh8=) 14...Rf8 (14...e4 15.Qd5 Rf7 16.Nd4 (16.Qe4? Bf6 17.0–0–0 Bb2 18.Kb2 Qf6 19.d4 Qf3 20.Qf3 Rf3–+) 16...Nd4 17.Bd4=) 15.h4 (15.Rb1=) 15...e4 (15...Qe8 16.b5 Nd8 17.Ng5 Bg5 18.hg5=) 16.Qd5 (16.Qe4!? Bf6 17.Qd5 Kh8 18.d4+=) 16...Rf7= 17.Ng5 Do you see the mate threat? (worse is 17.Qe4 Bf6 18.0–0 Bb2+=) 17...Bg5 18.hg5 Qf8 (18...Qe7!?=) 19.0–0–0 (19.Qe4?? Re7 20.Qe3 Re3 21.de3 Qf5–+) 19...Re8 20.g6 With the decisive threat Rxh7 20...hg6 21.Rh2 Ne7 (21...Re5 22.Be5 Qe8+–) 22.Rdh1 1–0. Cottarelli,Franco – Cortes,J, Cannes FRA, 1996.

6.Nf3 0–0 7.d4 a5 8.b5 Nbd7 =.

6.Nf3 0–0 7.d4 ed4 8.Nd4 Nbd7 9.Ne6 fe6 10.Be2 c6 11.0–0 a6 12.a4 d5 (better is 12...a5!? 13.b5 Nc5=) 13.ed5+/– ed5 14.cd5 cd5 15.Nd5 Nd5 16.Qd5 Kh8 17.Rad1 (17.Rad1 Bf6 18.Bf6 Nf6 19.Qb7+–) 1–0. Rush,Bradley – Fernandez,Paco, 49. LSS No Engine Cup Preliminary, 2011.

6.Nf3 a6 7.d4 0–0 8.Be2 Nbd7 9.0–0 c6 10.h3 b5? 11.de5?? de5 12.cb5 ab5 13.a3 h6 14.Qd3 Nb6 15.Ne5+/– Qd3 16.Bd3 Rac8 17.Rac1 Nc4 18.Bc4+– Bc4 19.Nc4 bc4 20.Rfe1 Rfe8 21.Na4 Bd8 22.Bf6 Bf6 23.Rc4 Re6? 24.Nc5+– Re7 25.a4 Ra7 26.e5 Be7 27.a5 Rb7 28.Nb7 Rb8 29.a6 1–0. wlittle (2110) – beezaman (1855), net–chess.com, 2005.

6.Nf3 Nc6 7.b5 Nd4 8.Nd4 ed4 9.Ne2 Bc4 10.Nd4 Bf1 11.Kf1 Ne4 12.Qe2 =.

4.Nc3 Be7

5.a3 a5 6.b5 (6.Qa4 Bd7 7.b5 Bf5 8.e3 0–0 9.Qd1 Qd7+=; 6.Nf3 ab4 7.ab4 Ra1 8.Ba1 0–0 9.e3 e4+=) 6...0–0 7.Nf3 e4 8.Ng5 e3 9.de3 Nbd7+=.

5.a3 Nc6 6.e3 (6.b5 Nd4 7.e3 Ne6 8.d4 ed4 9.ed4 0–0+=; 6.Nf3 Bf5 7.e3 0–0 8.d4 ed4 9.Nd4 Nd4=; 6.e4 0–0 7.Nf3 Nd4 8.Be2 c6 9.0–0 Nf3=; 6.Nd5 Be6 7.Ne7 Qe7 8.e3 0–0 9.b5 Na5+=) 6...0–0 7.Nf3 Bg4 8.Be2 e4 9.Ng5 Ne5=.

5.a3 Nbd7 6.Nf3 (6.d4 ed4 7.Qd4 0–0 8.Nf3 Re8 9.Nd5 a5=; 6.e4 0–0 7.Nf3 b6 8.Be2 c5 9.0–0 Bb7=; 6.e3 a5 7.d4 0–0 8.Nf3 ab4 9.ab4 Ra1+=; 6.Qc2 Nb6 7.e4 a5 8.Nf3 ab4 9.ab4 Ra1=; 6.Qb3 0–0 7.Nf3 a5 8.d4 ab4 9.ab4 Ra1+=) 6...0–0 7.e4 Re8 8.Be2 a5 9.0–0 c5=.

5.a3 Bf5 6.e3 (6.d4 ed4 7.Qd4 Be6 8.Nf3 Nc6 9.Qd3 a5=; 6.Nf3 Nc6 7.e3 0–0 8.d4 ed4 9.Nd4 Nd4=; 6.d3 Be6 7.Nf3 0–0 8.e4 a5 9.d4 ab4=) 6...Qd7 7.Nf3 0–0 8.Be2 a5 9.b5 Ra7=.

5.a3 Bg4 6.Qc2 (6.h3 Be6 7.e4 c5 8.Nf3 Nc6 9.Be2 0–0+=; 6.d4 ed4 7.Qd4 Be6 8.e4 Nc6 9.Qd1 0–0+=; 6.Nd5 Nd5 7.cd5 0–0 8.d4 ed4 9.h3 Bf5+=; 6.Nf3 0–0 7.d4 Nbd7 8.e3 a5 9.h3 Bh5+=; 6.Qa4 Nbd7 7.e4 a5 8.Qc2 ab4 9.ab4 Ra1+=; 6.g3 Be6 7.d3 c6 8.Nf3 Nbd7 9.Bg2 0–0=) 6...a5 7.b5 0–0 8.e4 Be6 9.Nf3 c5=.

5.b5 0–0 6.e4 (6.Nf3 a6 7.e4 Re8 8.Qc2 Nbd7 9.Be2 ab5=; 6.d4 c5 7.de5 de5 8.Qd8 Bd8 9.Nf3 Re8=; 6.e3 Nbd7 7.d4 a6 8.ba6 Ra6 9.Nd5 c5+=; 6.Qc2 Nbd7 7.Nf3 Nc5 8.e4 Bg4 9.Be2 Ne6+=) 6...Be6 7.Nf3 a6 8.d4 ab5 9.cb5 ed4=.

5.b5 a6 6.d4 (6.Nf3 0–0 7.e4 Re8 8.Be2 ab5 9.cb5 d5=; 6.e4 Nbd7 7.Nf3 ab5 8.cb5 Nc5 9.d4 Nce4=; 6.e3 ab5 7.cb5 d5 8.Nf3 e4 9.Nd4 c5+=; 6.a3 ab5 7.cb5 d5 8.Nf3 Nbd7 9.e3 e4+=) 6...ed4 7.Qd4 Nbd7 8.e4 Nc5 9.Nf3 ab5=.

5.b5 c5 6.Nf3 (6.e4 a6 7.Nf3 0–0 8.Be2 Nbd7 9.0–0 ab5=; 6.e3 0–0 7.Nf3 Bf5 8.d3 Qa5 9.Be2 a6=; 6.g3 0–0 7.Bg2 a6 8.Nf3 e4 9.Ng5 Ng4=; 6.d3 a6 7.e3 0–0 8.Nf3 Bf5 9.Be2 ab5=) 6...a6 7.e4 0–0 8.Be2 ab5 9.cb5 Be6=.

5.b5 Be6 6.e4 (6.e3 0–0 7.d4 ed4 8.Qd4 a6 9.Nf3 ab5+=) 6...0–0 7.Nf3 Nbd7 8.d4 ed4 9.Nd4 Nc5=.

5.b5 Bf5 6.e3 (6.Nf3 a6 7.d3 Bg4 8.d4 e4 9.Ng5 ab5+=; 6.d4 0–0 7.e3 ed4 8.Qd4 a6 9.Nf3 ab5=; 6.d3 Bg4 7.h3 Be6 8.Nf3 0–0 9.Ng5 Bc8+=; 6.h3 0–0 7.e3 a6 8.Qf3 Bc8 9.a4 ab5+=; 6.f3 Be6 7.e4 0–0 8.d4 ed4 9.Qd4 a6+=) 6...Qd7 7.d4 0–0 8.Nf3 e4 9.Nh4 Bg4=.

5.b5 Bg4 6.d4 (6.Nf3 Nbd7 7.h3 Be6 8.e4 Nb6 9.d4 Bc4=; 6.h3 Be6 7.e4 Nbd7 8.d4 ed4 9.Qd4 a6=; 6.Nd5 0–0 7.d4 a6 8.f3 Be6 9.e4 ed4+=; 6.a3 0–0 7.d4 Nbd7 8.Nf3 Re8 9.h3 Bf3+=) 6...ed4 7.Qd4 Be6 8.e4 Nbd7 9.Be2 Ne5=.

5.d3 0–0 6.Nf3 Be6 7.e4 Nbd7 8.Be2 (8.Be2 a5 9.b5=). Gervie – ureo, ChessWorld.net, 2005.

5.Nd5 Nd5 6.cd5 Bf5 7.d4 0–0 8.e3 c6 9.dc6 Nc6 10.b5 Nb4 11.Kd2 Rc8 12.Bc3 Rc3 13.Kc3 Qa5 14.Kd2 Nd5 15.Kc1 Qc3 0–1. katchum (2535) – rpatrick (2740), net–chess.com, 2014.

5.e4 a5 6.b5 (6.ba5 Ra5 7.Nf3 0–0 8.d4 ed4 9.Nd4 Na6=; 6.Qa4 Nbd7 7.Nf3 0–0 8.a3 Nb6 9.Qb3 Bg4+=) 6...a4 7.Nf3 0–0 8.Be2 Nbd7 9.d4 Re8=.

5.e4 a6 6.Nf3 (6.a3 c5 7.Nf3 Nc6 8.Be2 cb4 9.ab4 Nb4+=; 6.Be2 Nc6 7.a3 Nd4 8.Nf3 0–0 9.0–0 c5=; 6.Qb3 0–0 7.Nf3 a5 8.a3 ab4 9.ab4 Ra1=; 6.Qa4 Bd7 7.b5 Be6 8.Nf3 Nbd7 9.Qc2 0–0+=; 6.Rb1 Nc6 7.a3 0–0 8.Nf3 Nd4 9.Nd4 ed4+=) 6...Nc6 7.a3 0–0 8.Be2 Nd4 9.0–0 c5=.

5.e4 c5 6.b5 (6.a3 Nc6 7.bc5 dc5 8.Nf3 0–0 9.Be2 Bd6+=; 6.bc5 dc5 7.Nf3 Nc6 8.Be2 0–0 9.0–0 Re8+=; 6.Qa4 Nc6 7.bc5 dc5 8.Nf3 0–0 9.Be2 Re8+=) 6...a6 7.Nf3 0–0 8.Be2 b6 9.ba6 Ra6=.

5.Nf3 Na6 6.a3 (6.b5 Nc5 7.e3 e4 8.Nd4 0–0 9.Be2 a6=; 6.Qb3 0–0 7.e4 c5 8.b5 Nc7 9.Be2 Ne6=; 6.Nd5 0–0 7.a3 e4 8.Ne7 Qe7 9.Nd4 c5+=; 6.Qa4 Bd7 7.Qb3 0–0 8.e4 c6 9.Be2 Qb6=) 6...c5 7.bc5 Nc5 8.d4 ed4 9.Nd4 Nfe4=.

5.Nf3 Be6 6.e3 (6.e4 Nc6 7.b5 Nd4 8.Nd4 ed4 9.Ne2 Bc4+=; 6.Qa4 Nbd7 7.e4 a5 8.ba5 0–0 9.Be2 Nc5+=; 6.d3 0–0 7.e4 Na6 8.a3 c5 9.bc5 Nc5+=) 6...0–0 7.d4 e4 8.d5 Bg4 9.h3 Bh5=.

5.Nf3 h6 6.e3 (6.e4 Na6=) 6...0–0 7.d4 e4 8.Nd2 Bf5 9.Qc2 Increases the pressure on e4 9...d5 10.a3 c6 11.h3 (11.f3 a5 12.c5 ab4 13.ab4 Ra1 14.Ba1 Re8=) 11...Bg6 (11...Nbd7 12.Be2+=) 12.Qb3 Re8 13.Ne2 (13.Rc1 dc4 14.Bc4 b5=) 13...Bd6 (13...dc4 14.Nc4 Nd5 15.Ne5=) 14.c5 (14.Nc3 dc4 15.Nc4 Bc7+=) 14...Bc7+= 15.Nc3 Nbd7 16.a4 White plans b5 (16.b5 Bf5+=) 16...Nh7 (16...b6 17.cb6 ab6 18.b5+=) 17.b5= Qc8 (17...Bh5 18.Rb1=) 18.Be2 f5 19.g3 (19.0–0 Nhf6+=) 19...Bf7 20.a5 Ng5 21.h4 Ne6 22.Qa4 White prepares a6 22...Bd8 (22...cb5 23.Bb5 Rd8 24.Nd5 Nec5 25.Ne7 Kf8 26.Nc8 (26.dc5?! Ke7 27.Rc1 Ne5=) 26...Na4 27.Ba3 (worse is 27.Ba4 Rac8 28.h5 Bd5+=) 27...Ke8 28.Ne7+/–) 23.a6+= Nec5? (better is 23...Nf6!?+=) 24.dc5+/– Nc5 25.Qd4 Ne6 (better is 25...b6+/–) 26.Qa4?? (26.Qe5 Bf6 27.Qf5 cb5+–) 26...Nc5 27.Qc2 Bb6 (27...ba6 28.bc6 Qc6 29.Na4+–) 28.Na4 (28.ab7 Nb7 29.bc6 Nc5+–) 28...Na4+/– 29.ab7 Qb7 30.bc6 (30.Ra4?! cb5 31.Bb5 Rec8+=) 30...Qc7 31.Qa4 Be3? (31...Reb8 32.Nb3 Be8+–) 32.fe3 Qg3 33.Kd1 Qe3 34.Qd4 (better is 34.Bd4!? Qf4+–) 34...Qd4 35.Bd4 a5 36.Rg1 g6 37.Bb5 Reb8 38.Rb1 a4 39.Be5 (39.c7 Rb7 40.Bc6 Rb1 41.Nb1 Rc8+–) 39...Rc8 (39...Re8 40.Bf4 a3 41.Bh6+–) 40.Ra1 (40.c7!? a3+–) 40...a3 41.Nb3 d4 (41...Kh7 42.c7 Be8 43.Be2+–) 42.Nd4 a2 (42...Ra5 43.c7 a2 44.Bd7+–) 43.h5 (better is 43.Nf5 Bb3 44.Kd2 Kh7+–) 43...g5 44.Nf5 Bh5 45.Ke1 Re8 46.Bc4 (46.Nh6?! Kh7 47.Bf6 Kh6 48.Bg5 Kh7+–) 46...Kh7 47.Bd6 Bf3 (47...Kg6 48.Ne7 Re7 49.Be7+–) 48.c7 (48.Ra2 Ra2 49.Ba2 e3+–) 48...e3 (48...Kg6 49.Ne3+–) 49.Ra2 Ra2 50.Ba2 Ra8 51.Ne3 Bb7 52.Bd5 Bd5 53.Nd5 (53.Nd5 Kg6 54.Ne7 Kf6 55.c8Q Rc8 56.Nc8+–) 1–0. Rohrbacher,Walter – Muensch,Kurt, Baden–ch Sen, 1990.

5.g3 a5 6.b5 (6.ba5 Nc6 7.Bg2 Na5 8.d3 0–0 9.Nf3 Bg4+=) 6...0–0 7.Bg2 Nbd7 8.Nf3 c6 9.0–0 d5=.

5.g3 a6 6.Bg2 (6.a3 Be6 7.Bg2 c6 8.d3 0–0 9.Nf3 Nbd7=; 6.Nf3 Nc6 7.d4 ed4 8.Nd5 0–0 9.Nd4 Nd5+=) 6...Nc6 7.Nd5 0–0 8.a3 Nd5 9.cd5 Nd4=.

5.g3 Na6 6.a3 (6.Qb3 c6 7.Bg2 Be6 8.Nf3 Qb6 9.a3 Nc5+=) 6...0–0 7.Bg2 c6 8.d4 Qc7 9.Nf3 e4=.

5.g3 c6 6.Nf3 (6.e4 0–0 7.Nf3 d5 8.ed5 e4 9.Ng5 Nd5+=; 6.a3 Nbd7 7.e4 0–0 8.f4 a5 9.Nf3 ef4+=; 6.Bg2 Be6 7.d3 d5 8.cd5 cd5 9.a3 0–0+=; 6.e3 0–0 7.d4 Re8 8.Nge2 Be6 9.d5 cd5+=; 6.Bh3 Bh3 7.Nh3 0–0 8.f4 e4 9.a3 d5+=) 6...Qb6 7.a3 0–0 8.Bg2 a5 9.b5 e4+=.

5.g3 Nc6 6.b5 (6.Qa4 Bd7 7.Bg2 Nd4 8.b5 c6 9.bc6 Nc6+=; 6.a3 0–0 7.Nf3 e4 8.Ng5 Nd7 9.h4 h6+=; 6.Nd5 0–0 7.Ne7 Qe7 8.b5 Nd4 9.Bd4 ed4+=) 6...Nd4 7.e3 Ne6 8.Bg2 0–0 9.Nge2 a6=.

5.g3 Bd7 6.Bg2 Bc6 7.Nd5 Nd5 8.cd5 Bd7 9.Nf3 0–0 10.0–0 Bg4 11.h3 Bf5 12.d3 Qc8 13.Kh2 Nd7 14.Qd2 Nb6 15.e4 Bd7 16.Bc1 f5 17.Qc2 Rf6 18.Bg5 Rf7 19.Be7 Re7 20.a4 fe4 21.de4 Rb8 22.a5 Na4 23.Ra4 Ba4 24.Qa4 b5 25.Qc2 h6 26.h4 Qe8 27.Bh3 Qf8 28.Kg2 Qf6 29.Be6 Kh8 30.Nh2 g5 31.Ng4 Qf8 32.hg5 hg5 33.Qc1 Re6 34.Rh1 1–0. blackdogs (2450) – abosnjakovic (2315), net–chess.com, 2014.

5.a3 0–0

6.d4 a5 7.b5 Nbd7 8.Nf3 e4 9.Nd2 e3+=.

6.e3 Nc6 7.Be2 e4 8.f3 Bf5 9.fe4 Ne4=.

6.e4 a5 A) 7.Nf3 Nc6 (7...ab4 8.ab4 Ra1 9.Qa1 Re8 10.Be2 Nc6 11.b5=; 7...Na6 8.Be2 Be6 9.Qb3 ab4 10.ab4 c6 11.0–0=) 8.b5 Nd4 9.Nd4 ed4 10.Nd5 Ne4 11.Bd3+=; B) 7.b5 Nbd7 (7...Re8 8.Be2 Nbd7 9.Nf3 Nc5 10.Qc2 Nh5 11.Nd5=; 7...Ra7 8.Nf3 Be6 9.d4 Nbd7 10.Be2 Bg4 11.0–0+=) 8.d4 ed4 9.Qd4 Nc5 10.Rd1 Re8 11.Be2+=.

6.e4 Nc6 A) 7.Rb1 Be6 (7...a5 8.b5 Nd4 9.Nge2 Be6 10.d3 c5 11.Nd4=; 7...Re8 8.Nf3 Nd4 9.Be2 a5 10.0–0 Ne2 11.Qe2=; 7...Bd7 8.Nf3 a6 9.Be2 Nd4 10.0–0 c5 11.bc5=; 7...Nd4 8.Nge2 Re8 9.d3 c5 10.Bc1 a5 11.bc5=; 7...a6 8.Nf3 Bg4 9.Be2 Re8 10.0–0 Qd7 11.b5=) 8.Nf3 Nd4 9.Ra1 Re8 10.Bd3 c5 11.0–0=; B) 7.h3 Nd4 (7...Re8 8.Nf3 a5 9.b5 Nd4 10.Bd3 c6 11.0–0=; 7...a5 8.b5 Nd4 9.Nf3 Nf3 10.Qf3 Nd7 11.Rd1=; 7...Be6 8.Nf3 a5 9.b5 Nd4 10.Bd3 Nf3 11.Qf3+=; 7...Bd7 8.Nf3 Nd4 9.Be2 Be6 10.Nd4 ed4 11.Nd5+=; 7...a6 8.Nf3 Nd4 9.Bd3 Ne6 10.Bc2 Nf4 11.0–0=) 8.Nf3 a5 9.Nd4 ed4 10.Nd5 c5 11.Bd3+=; C) 7.Nge2 Bg4 (7...Be6 8.d3 Re8 9.Nd5 Qd7 10.d4 ed4 11.f3=; 7...Re8 8.Qc2 Nd4 9.Nd4 ed4 10.Nd5 Ne4 11.Bd3=; 7...a5 8.b5 Nd4 9.Nd4 ed4 10.Nd5 Ne4 11.Bd3+=; 7...Nd4 8.Nd4 ed4 9.Nd5 Ne4 10.Bd4 Re8 11.Be2+=; 7...Bd7 8.d4 ed4 9.Nd4 Re8 10.Be2 a5 11.b5=; 7...a6 8.d4 a5 9.b5 ed4 10.Nd4 Ne5 11.Be2+=) 8.b5 Na5 9.Qa4 c6 10.f4 cb5 11.cb5+=; D) 7.Nf3 Nd4 (7...a5 8.b5 Nd4 9.Be2 Be6 10.Nd4 ed4 11.Nd5=; 7...Re8 8.Be2 Nd4 9.0–0 c6 10.Re1 Nf3 11.Bf3=; 7...Bd7 8.Be2 Nd4 9.0–0 c5 10.d3 Nf3 11.Bf3=; 7...Be6 8.d4 Bg4 9.de5 Ne5 10.Be2 Bf3 11.gf3=; 7...a6 8.Be2 a5 9.b5 Nd4 10.0–0 c6 11.Nd4=; 7...Qd7 8.Be2 Nd4 9.Nd4 ed4 10.Nd5 c5 11.Ne7=) 8.Nd4 ed4 9.Nd5 Ne4 10.Bd4 Re8 11.Be2+=; E) 7.Be2 a5 8.b5 Nd4 9.Nf3 c6 10.0–0 Be6 11.Ng5=; F) 7.Bd3 Bg4 (7...Re8 8.Nf3 Bg4 9.Be2 Be6 10.d4 ed4 11.Nd4=; 7...Be6 8.Nf3 a6 9.0–0 Re8 10.Ng5 Bg4 11.Be2=; 7...Nd4 8.Nge2 c5 9.Nd4 cd4 10.Nd5 Nd5 11.ed5=; 7...a5 8.b5 Nd4 9.Nge2 c6 10.Nd4 ed4 11.Ne2=) 8.Be2 Be6 9.Nf3 a5 10.b5 Nd4 11.d3+=; G) 7.b5 Nd4 8.Nge2 Be6 9.d3 Ne2 10.Be2 c5 11.0–0=.

6.e4 Be6 7.d3 (7.Nf3 a5 (7...Nc6 8.d4 Bg4 9.de5 Ne5 10.Be2 Bf3 11.gf3=; 7...Nbd7 8.Ng5 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1=; 7...Re8 8.d4 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1=; 7...a6 8.d4 a5 9.Be2 ab4 10.ab4 Ra1 11.Qa1=) 8.d4 ab4 9.ab4 Ra1 10.Ba1 Na6 11.b5=; 7.Be2 c5 (7...a5 8.b5 Nbd7 9.Nf3 Nc5 10.Qc2 Nfd7 11.0–0=; 7...Nc6 8.Nf3 a5 9.b5 Nd4 10.d3 Nf3 11.Bf3=) 8.Nf3 Nc6 9.0–0 cb4 10.ab4 Nb4 11.d4+=) 7...Nbd7 (7...c5 8.Nf3 Nc6 9.b5 Nd4 10.Be2 Re8 11.0–0+=; 7...a5 8.b5 Nbd7 9.Nge2 Nc5 10.Nd5 c6 11.d4+=; 7...Nc6 8.Nf3 a6 9.Be2 Nd7 10.0–0 f5 11.Qd2=; 7...Re8 8.Nf3 a5 9.d4 ab4 10.ab4 Ra1 11.Ba1=) 8.Be2 (8.Nf3 c5 9.Ng5 Qb6 10.Be2 cb4 11.Na4=) 8...Ne8 (8...c6 9.d4 ed4 10.Qd4 a5 11.Nf3=) 9.Nf3 f5 10.d4 (10.0–0 a5 11.Qc2=) 10...fe4 11.Ne4 d5 12.cd5 Bd5 13.Nc3 Bf3 14.Bf3 c6 15.d5 Nb8 (better is 15...c5!?=) 16.Qb3+/– Kh8 17.Rd1 Bd6 18.0–0 c5 19.bc5 Bc5 20.Ne4 Nd7 21.Nc5 Nc5 22.Qc3 Nd7 23.Rfe1 Nd6 24.Qb4 Qe7 (24...Qf6 25.Re2 Rac8 26.Rde1+/–) 25.Bg4 a5 26.Qc3 Nf7 (26...Rac8 27.Qb3+/–) 27.Bd7 (27.f4 Nf6 28.Bf3 Rac8+–) 27...Qd7 28.Qg3 (28.f4!? Rac8 29.Qg3 Rfd8+–) 28...Qa4+/– 29.Rc1 Rad8 30.Be5 Ne5 31.Re5 Rc8 (31...Qd4!?+/–) 32.Rce1+– h6 33.Re7 Rg8 (33...Qd4!? 34.Rb7 Rc2+/–) 34.d6+– Rcd8 35.Rb7 Qc6 36.Ra7 Qb6 37.Rf7 (37.Qe3 Rge8 38.Qe8 Re8 39.Re8 Kh7+–) 37...Rd6 38.h3 Rg6 39.Qf3 Qd6 40.Rd1 Qb6 41.Rf8 Qc5 42.Rg8 Kg8 43.Rd8 Kh7 44.Qa8 (better is 44.g4!?+/–) 44...Rf6 ˝–˝. De Visser,Arno – Konijn, Alkmaar, 1998.

6.Nf3 Nbd7 7.d4 Re8 8.e3 a5 9.Bd3 ed4+=.

6.e4 c5

7.Qa4 Nc6 (7...Be6 8.Nf3 Nc6 9.Be2 Nd4 10.d3 Bd7 11.Qd1+=; 7...Re8 8.b5 Nbd7 9.Nf3 a6 10.Be2 Nb6 11.Qc2+=) 8.b5 Nd4 9.Nge2 a6 10.f3 Be6 11.Nd4–/+.

7.Rb1 Be6 (7...Nc6 8.b5 Nd4 9.Nf3 Rb8 10.Be2 a6 11.a4+=; 7...cb4 8.ab4 Na6 9.Ba3 Qc7 10.d4 Bg4 11.Nf3=; 7...Re8 8.Nf3 Nc6 9.b5 Nd4 10.Be2 a6 11.ba6+=; 7...Bd7 8.Nf3 Nc6 9.bc5 dc5 10.Be2 Bd6 11.Nb5+=; 7...Qc7 8.Nf3 cb4 9.ab4 Bg4 10.h3 Be6 11.Nd5=; 7...Na6 8.b5 Nc7 9.Nf3 a6 10.ba6 Ra6 11.Be2=) 8.bc5 dc5 9.Nf3 Nc6 10.Be2 Bd6 11.Ng5+=.

7.b5 Be6 (7...a6 8.Nf3 Be6 9.Ng5 ab5 10.cb5 Bc8 11.Bc4=; 7...Nbd7 8.Nf3 a6 9.Be2 Nb6 10.ba6 Ra6 11.0–0=; 7...Qb6 8.Nf3 a6 9.Be2 ab5 10.cb5 Bg4 11.0–0=; 7...Qa5 8.Nf3 a6 9.Be2 b6 10.ba6 Qa6 11.0–0=; 7...b6 8.Nf3 Bb7 9.Bd3 a6 10.ba6 Na6 11.0–0=; 7...Bd7 8.Nf3 a6 9.Be2 Be6 10.a4 ab5 11.ab5=) 8.Nf3 a6 9.Ng5 Bc8 10.ba6 Na6 11.Be2+=.

7.bc5 dc5 8.Nf3 Nc6 9.Be2 Bd6 10.Qb1 Nd4 11.Qd3+=.

7.Be2 Nc6 (7...Be6 8.Nf3 Nc6 9.0–0 cb4 10.ab4 Nb4 11.d4+=; 7...Qb6 8.Nf3 Nc6 9.Nd5 Nd5 10.ed5 Nd8 11.Qc2=; 7...cb4 8.ab4 Nc6 9.b5 Nd4 10.Nf3 Nf3 11.Bf3=) 8.bc5 dc5 9.Nf3 Bd6 10.0–0 Nd4 11.d3+=.

7.Nge2 Bd7 (7...Be6 8.Ng3 Nc6 9.Nd5 Re8 10.Be2 cb4 11.ab4=; 7...Re8 8.Qc2 Nc6 9.Nd5 cb4 10.Nb4 Nb4 11.ab4+=; 7...Nc6 8.b5 Nd4 9.Qb1 Nb3 10.Ra2 Nd4 11.Qd3+=; 7...a6 8.Qc2 cb4 9.ab4 Qb6 10.Qa4 Bd7 11.Qa5+=; 7...Qb6 8.bc5 dc5 9.Rb1 Rd8 10.Ng3 Qd6 11.Nb5+=; 7...a5 8.b5 Nbd7 9.Ng3 Nb6 10.d3 Re8 11.Be2=) 8.f4 Nc6 9.Qb1 Re8 10.b5 Nd4 11.Qd3+=.

7.Nf3 Nc6 8.bc5 dc5 9.Be2 Bd6 10.0–0 Nd4 11.d3+=.

5.a3 Be6

6.e3 a5 7.b5 Nbd7 8.Nf3 Nb6 9.d4 Bc4=.

6.e3 Nc6 7.Nf3 0–0 8.Qc2 Qc8 9.Be2 Bg4 10.0–0 h6 (10...Re8!?=) 11.b5 Nd8 12.d4 Bf3 13.Bf3 (worse is 13.gf3 ed4 14.Nd5 Nd5 15.cd5 de3 16.fe3 c5=) 13...Rb8 (better is 13...ed4!? 14.ed4 Re8+/–) 14.Nd5+– Nd5 15.cd5 (15.Bd5?! c6 16.bc6 bc6+=) 15...Bf6 16.de5 de5 17.Rfc1 c6 18.Be4 Qg4 19.dc6 bc6 20.bc6 Ne6 21.Rab1 Nc7 22.Qa4 Kh8 23.h3 Qh4 24.Rc4 Qh5 25.Qa7 (25.Qa7 Rfc8 26.Rb4+–) 1–0. nordlicht (1945) – bandit12, gameknot.com, 2013.

6.e4 c5 7.Nf3 Nc6 8.Be2 cb4 9.ab4 Nb4+=.

5.b5 Nbd7

6.Qc2 Nb6 7.e4 0–0 8.Nf3 Bg4 9.d4 Bf3+=.

6.d3 a6 7.e4 0–0 8.d4 ed4 9.Qd4 Re8+=.

6.d4 0–0 7.Nf3 ed4 8.Qd4 Re8 9.e3 c5=.

6.Nd5 Nd5 7.cd5 Nf6 8.d4 e4 9.Qb3 Bf5+=.

6.e3 0–0 7.d4 a6 8.ba6 Ra6 9.Bd3+=.

6.e3 0–0 7.d4 a6 8.ba6 Ra6 9.Nd5 c5+=.

6.e3 0–0 7.d4 Re8 8.Bd3 (8.Nf3 c5=) 8...ed4–/+ 9.ed4 d5 10.Nge2 dc4 11.Bc4 Nb6 12.Bd3 Bd6 13.Qc2 h6 (13...Be6 14.0–0+=) 14.h3 (14.0–0 Nfd5+=) 14...Nbd5–/+ 15.Bc4 Nc3 (15...Be6 16.Nd5 Bd5 17.0–0–/+) 16.Bc3+= Ne4 (better is 16...Be6 17.Bd3 Nd5–/+) 17.0–0–0? (17.0–0!?+=) 17...Bf5 (17...Nf2 18.Rhf1 Qg5 19.Qd2 Ba3 20.Kc2 Qg2 21.Qf4 Re2 22.Be2 Qg6 23.Bd3 Nd3 24.Rd3–+) 18.Qb3 (18.g4 Bg6 19.f4 Ba3 20.Bb2 Bb2 21.Kb2 Nf2 22.Qg6 Re2 23.Ka1 Qd7–+) 18...Bg6–+ (worse is 18...Nf2 19.Bf7 Kh7 20.Be8 Qe8 21.Rhe1 Qe3 22.Kb2–/+) 19.Be1 Qe7 20.Kb2 c6 (20...a6!? 21.ba6 ba6 22.Ka1–+) 21.f3–/+ Nf6 22.a4 (better is 22.Bh4!?–/+) 22...cb5–+ 23.ab5 Rac8 24.Nc3 ˝–˝. Pastivnychna,Zorjana (2115) – Sommer,Sonja, Tapolca (Women), 1996.

6.e4 0–0 7.d4 Re8 8.Be2 ed4 9.Qd4 Nc5+=.

6.Nf3 a6 7.e4 ab5 8.cb5 Nc5 9.d4 Nce4+=.

5.e3

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nc3).

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

5.e3 0–0 6.Nf3 c6 7.Be2 Nbd7 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 Nbd7 7.Nc3 c6).

5.e3 0–0 6.Nf3 Bg4 7.Be2 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 Bg4 6.Be2 0–0 7.Nc3).

5.e4 0–0

6.b5 Nbd7 7.Nf3 Nc5 8.d4 Nce4 9.Ne4 Ne4+=.

6.d4 ed4 7.Qd4 Nc6 8.Qd2 Re8 9.b5 Ne5 (9...Na5 10.Nf3+=) 10.f4 Ng6 11.Bd3 Be6?? (better is 11...d5 12.e5 dc4 13.Bg6 hg6–/+) 12.f5+= Bf5 13.ef5 Ne5 (better is 13...Ng4 14.Be4 N6e5+/–) 14.h3?? (better is 14.Nf3!? Nf3 15.gf3 a6+–) 14...h6?? (better is 14...Nh5 15.Nge2 Bg5–/+) 15.Nge2 (better is 15.Kf1+–) 15...Nd3? (better is 15...d5 16.0–0–0 dc4+/–) 16.Qd3+– Qd7 (16...Nd7 17.0–0+–) 17.0–0 c6 18.a4 (18.Nf4 Bd8+–) 18...d5 19.g4?? (better is 19.cd5 Bc5 20.Nd4 cd5 21.Rab1+–) 19...Bc5= (19...Bc5 20.Kg2 Re3=). Baer,Cy (1895) – Bonow,Valdir (1925), CiF, 2007.

6.a3 a5 7.b5 Be6 8.Nf3 Nbd7 9.d4 Rc8=.

6.Be2 Nc6 7.a3 Nd4 8.Nf3 Be6 9.Nd4 ed4=.

6.Be2 Nc6 7.a3 d5 8.cd5 Nd4 9.Nf3 Bg4? ( 9...c6 10.dc6 Nf3 11.Bf3 bc6+=) 10.Ne5+– Be2 11.Ne2 Ne2 12.Qe2 Bd6 13.d4 Rc8 14.Rc1 Re8 15.f3 Nd7 16.Nd7 Qd7 17.0–0 c6 18.dc6 Rc6 19.Rc2?? Rec8?? 20.Rfc1 R8c7? 21.d5 Rc2 22.Rc2 Qc8 23.Rc7 Qc7 24.Kf1 Bh2 25.Qd3 Bg3 26.Qd4 Qc2?? 27.Qg7# 1–0. gregorgysi (2250) – jbumgar (1675), net–chess.com, 2009.

6.Nf3 Nc6 7.a3 a5 8.b5 Nd4 9.Nd4 ed4 10.Nd5 =+.

6.Nf3 Nc6 7.a3 Nd4 8.d3 Bg4 (8...a5 9.Nd4 ed4 10.Nd5 Nd5 11.cd5+=) 9.Be2= Ne2 (9...Bf3 10.Bf3 c6 11.0–0=) 10.Qe2 a5 11.0–0 c6 (11...Qd7 12.h3 Bh5 13.Qe3=) 12.b5 Qb6 (12...Nd7 13.h3 Bh5 14.Rab1=) 13.a4 (13.Rab1 Rfc8=) 13...Nd7 (13...Rac8 14.h3 Bh5 15.Qe3=) 14.h3 Bh5 15.Ba3 Rfc8 (15...Qc7 16.Qe3=) 16.Rab1 c5 (16...Qc7 17.Qe3=) 17.Nd5 Qd8 18.b6 (18.Bc1!?=) 18...Ra6+= 19.Nc7 Rb6 20.Nb5 (20.Nd5 Rb1 21.Rb1 Rb8+=) 20...Nb8 (20...Bg5 21.g4 Bg6 22.Ng5 Qg5 23.f4 ef4 24.Bc1+=) 21.Na7 (21.Nc3 Nc6 22.Rb6 Qb6–/+) 21...Rb1 22.Rb1 Rc7 23.g4 (23.Bc1 Rd7+=) 23...Bg6–/+ 24.Nb5 Rd7 25.Nc3 Nc6 26.Nd5 Nb4 27.Bb4 ab4 28.Qb2 (28.Kg2 b6–/+) 28...b6 29.Qb3 h5 (29...Ra7 30.Kg2–/+) 30.Nh2 (30.Kf1 Ra7–/+) 30...hg4 31.hg4 Ra7 32.Kg2 (32.Kf1 Ra6–/+) 32...Bg5 33.Kh3 (33.Kf3 Bf4 34.Nf1 Qe8–/+) 33...Qd7 34.Ra1 Bd8 (34...Ra6 35.Kg2–+) 35.Ra2 (35.Kg2 f6–+) 35...f6 (35...f6 36.Nf1 Be8–+) 0–1. Naasen,Nils (1915) – Niewold,Jaap (1730), TE.2004.P.01702, 2004.

6.Nf3 Nc6 7.a3 Nd4 8.Nd4 ed4 9.Nd5 Ne4+=.

6.Nf3 Nc6 7.a3 Nd4 8.Be2 c6+=.

6.Nf3 Nc6 7.a3 Bg4 8.Be2= a6 9.0–0 h6 (9...Bf3 10.Bf3 Nd4 11.Nd5=) 10.h3 (10.Re1 Re8=) 10...Bf3 11.Bf3 Nd4 12.d3 Nf3 13.Qf3+= Rc8 14.Rac1 c6 15.a4 Re8 16.Rc2 d5= 17.c5 d4 18.Ne2 Qd7 19.g4 Bd8 20.Ng3 g6 21.Bc1 Kg7 22.Kh2 Qe7 23.g5 hg5 24.Bg5 Qe6 25.Rg1 Rh8 26.Nf5?? gf5–+ 27.ef5 Qe8?? 28.Bf6+– Kf6 29.Qg4 Ke7 30.f4?? ef4?? 31.Re2 (31.Re2 Kd7 32.f6 Qe6 33.Re6 Rh3 34.Kh3 Bf6 35.Rc6 Kc6 36.Qc8 Kd5 37.Qd7 Ke5 38.Re1#; 31.f6 Kf6 32.Qf4 Ke6 33.Re2 Kd7 34.Qd6#) 1–0. alaamattar (2270) – shazan (2190), net–chess.com, 2008.

6.Nf3 Bg4

7.Be2= a5 8.b5= Nbd7 (8...a4 9.0–0 a3 10.Bc1 Nbd7 11.d4 Re8 12.Be3 ed4 13.Nd4 Be2=; 8...Re8 9.0–0 a4 10.a3 Nbd7 11.Ng5 Nb6 12.Bg4 Ng4 13.Qg4 Bg5=; 8...Qe8 9.0–0 a4 10.a3 Nbd7 11.d4 Be6 12.de5 Ne5 13.Ne5 de5+=; 8...Nfd7 9.d4 Bf3 10.Bf3 ed4 11.Qd4 Ne5 12.Be2 Bf6 13.Qd5 c6+=) 9.d4 ed4 10.Qd4 a4 11.0–0 Re8 12.Rad1 Nc5 13.Rfe1 a3=.

7.Be2= a6 A) 8.a3 c5 (8...a5 9.b5 Nbd7 10.d4 Bf3 11.Bf3 c5 12.bc6 bc6 13.0–0 ed4+=; 8...Re8 9.d4 Bf3 10.Bf3 ed4 11.Qd4 Nc6 12.Qd2 a5 13.b5 Ne5+=; 8...Nbd7 9.0–0 c5 10.Ng5 Be2 11.Qe2 d5 12.ed5 cb4 13.ab4 Bb4=; 8...Nc6 9.0–0 Re8 10.Qc2 a5 11.b5 Bf3 12.Bf3 Nd4 13.Qd3 Nd7=) 9.bc5 Bf3 10.Bf3 dc5 11.Qb3 Nc6 12.Nd5 Ra7 13.Qb6 Qd6=; B) 8.0–0 Re8 (8...Nc6 9.a3 Qd7 10.Qc2 Bf3 11.Bf3 a5 12.b5 Nd4 13.Qd3 c6=; 8...Qd7 9.a3 Nc6 10.Qc2 Bf3 11.Bf3 a5 12.b5 Nd4 13.Qd3 c6=; 8...b6 9.d4 Nbd7 10.d5 Bh5 11.Qd3 Rc8 12.Bc1 Re8 13.a3 c6+=; 8...Bf3 9.Bf3 Nc6 10.a3 Nd4 11.Nd5 Nd5 12.ed5 Bg5 13.Bd4 ed4=) 9.Ne1 Be6 10.f4 c5 11.f5 Bd7 12.b5 ab5 13.cb5 d5=.

7.Be2= Nc6 A) 8.b5 Bf3 (8...Na5 9.d4 Bf3 10.gf3 ed4 11.Qd4 Re8 12.Rg1 c6 13.Qd2 Kh8=) 9.Bf3 Nd4 10.0–0 c6 11.Rb1 Re8 12.Re1 a6 13.bc6 bc6=; B) 8.a3 Bf3 (8...Re8 9.0–0 Bf3 10.Bf3 Nd4 11.Bg4 a5 12.b5 c6 13.bc6 bc6=; 8...a6 9.0–0 Re8 10.Qc2 Qd7 11.Nd5 Ra7 12.b5 Nd8 13.ba6 Ra6+=; 8...Nd7 9.Nd5 Nb6 10.Qb3 Bf3 11.Bf3 Nd5 12.cd5 Nd4 13.Bd4 ed4=; 8...Qd7 9.0–0 Bf3 10.Bf3 a5 11.b5 Nd4 12.Be2 c6 13.f4 Ne6=) 9.Bf3 Nd4 10.0–0 c6 11.Be2 a5 12.b5 cb5 13.cb5 d5=.

7.Be2= Nbd7 8.0–0 Re8 (8...a5 9.b5 Nb6 10.d4 Bf3 11.gf3 a4 12.f4 a3 13.Bc1 ed4=; 8...Nb6 9.d4 Bf3 10.gf3 Re8 11.a3 a5 12.de5 de5 13.c5 Nbd7=; 8...c5 9.a3 Qb6 10.b5 a6 11.Ng5 Be2 12.Qe2 h6 13.Nf3 ab5=) 9.d3 (9.a3 Nb6 10.Ng5 d5 11.cd5 Be2 12.Qe2 Nfd5 13.Nd5 Bg5=) 9...Nf8 (9...c5 10.b5= Bf3 11.Bf3 a6 12.a4 ab5 13.ab5 Ra1+=) 10.a4 (10.a3 a5= (10...Ne6 11.Nd2 Be2 12.Ne2 a5 13.d4 c5=) 11.d4 Ng6 12.Nd2 Be2 13.Ne2 ab4=; 10.d4 Ng6 11.Nd2 Be2 12.Ne2 d5 13.cd5 Bb4=) 10...Ng6 11.h3 Bd7 (11...Bf3 12.Bf3 d5 13.Nd5 Nd5=) 12.b5 (12.a5 Nf4 13.Bc1 Ne2=) 12...Nf4 13.Bc1 (13.Re1 Ne2=) 13...Ne6 (13...Ne2=) 14.Be3 h6 (14...a6 15.a5=) 15.Qd2 Nh7 16.Nd5 Rf8 (16...Nhg5 17.Ne7 Qe7 18.Ng5 Ng5 19.Rfb1+=) 17.d4 (17.a5 a6+/–) 17...ed4+= 18.Ne7 Qe7 19.Nd4 Nc5 20.f3 Rae8 21.Rfe1 f5 22.Nf5 (22.Qa5 Bc8=) 22...Rf5+= 23.ef5 Qe3 24.Qe3 Re3 25.Kf2 Rc3 26.g4 Ng5 27.h4 Nf7 28.a5 (28.Rec1 Rc1 29.Rc1 h5+=) 28...Ne5–/+ 29.b6 (better is 29.Red1!?–/+) 29...ab6–+ 30.ab6 Ned3 (30...Ncd3 31.Kf1 Ne1 32.Ke1 Nc4 33.bc7–+) 31.Kf1 Ne1 32.Ra8 (better is 32.Ke1 cb6 33.Rd1–+) 32...Kf7 33.bc7 (33.Ke1 c6–+) 33...Ncd3 (33...Nf3 34.Rd8 Ke7 35.Rg8 Nd2 36.Ke1 Nc4 37.Rg7 Ke8 38.Rg8 Kf7 39.c8Q Rc1 40.Kf2 Ne4 41.Kg2 Bc8 42.Rc8 Ne3 43.Kf3 Rc8 44.Ke3–+) 34.c8Q Bc8 35.Rc8 Rb3 (better is 35...b5!? 36.Rc7 Kf6 37.Rc6 bc4 38.Rd6 Ke5 39.Rd7–+) 36.Rc7 Kf6 37.Rd7 Rb1 (37...Rb6 38.Rd8–+) 38.Rd6 (38.Bd3 Nd3 39.Ke2–+) 38...Ke7 39.Rg6? (39.Re6 Kf7 40.Re4–+) 39...Nf3 (39...Nf3 40.Bd1 Nde5–+ (worse is 40...Rd1 41.Ke2 Nf4 42.Kd1 Ng6 43.fg6–+)) 0–1. Gibbons,Robert (2085) – Vital,Henry, Open, Auckland NZL, 2004.

7.Be2= Nbd7 8.a3 c6 (8...c5 9.0–0 Qb6 10.b5 a6 11.Ng5 Be2 12.Qe2 ab5 13.Nb5 Qc6=; 8...Nb6 9.d4 Nfd7 10.de5 Bf3 11.ed6 Be2 12.de7 Bd1 13.ed8Q Rfd8=; 8...Re8 9.0–0 Nb6 10.Ng5 d5 11.cd5 Be2 12.Qe2 Nfd5 13.Nd5 Bg5=; 8...a5 9.0–0 ab4 10.ab4 Ra1 11.Ba1 c5 12.bc5 dc5 13.Ng5 Nb6=) 9.0–0 Nb6 10.d4 Bf3 11.gf3 Nh5 12.de5 de5 13.c5 Nd7=.

7.Be2= Nbd7 8.d4 Bf3 (8...c5 9.bc5 ed4 10.Qd4 dc5 11.Qe3 Re8 12.0–0 Bd6 13.Rfd1 Qe7=; 8...a5 9.b5 Bf3 10.Bf3 ed4 11.Qd4 Ne5 12.Be2 a4 13.a3 Nfd7+=; 8...c6 9.0–0 Bf3 10.Bf3 c5 11.bc5 dc5 12.d5 Bd6 13.Qb3 b6+=) 9.Bf3 ed4 10.Qd4 Ne5 11.a3 a5 12.0–0 Re8 13.Rfd1 Nf3=.

5.e4 Nc6

6.a3 0–0 7.Nf3 a5 8.b5 Nd4 9.Nd4 ed4 10.Nd5 Ne4 11.Bd3 Nc5 12.Qc2 c6 13.Bh7 Kh8 14.Nf4 =+.

6.a3 0–0 7.Nf3 Nd4 8.Nd4 ed4 9.Nd5 Ne4+=.

6.Qa4 0–0 7.Nge2 Re8 8.f3 a6 9.b5 Na7+=.

6.b5 Nd4 7.Be2 Be6 8.d3 (8.Bd3 Nd7 9.Nge2 Nc5 10.Qb1 Ne2 11.Be2 0–0 12.0–0 f5 13.f4 fe4+=) 8...0–0 (8...a6 9.ba6 Ra6 10.Nd5 c5 11.Bd4 cd4 12.Nf3 Nd5 13.ed5 Bf5+=) 9.Nf3 (9.Nd5 Ne2 10.Ne7 Qe7 11.Ne2 a6 12.ba6 Ra6 13.0–0 Nd7+=) 9...Nf3 10.Bf3 Nd7 (10...a6 11.0–0+= (11.a4 c6 12.0–0 Qc7 13.Qe2 Rfc8=) 11...c6 12.a4 Qc7 13.Qc2 Rad8=) 11.0–0 Nc5 (11...a6 12.Bg4= ab5 13.Be6 fe6=) 12.Ba3 (12.Nd5 f5= 13.ef5 Bf5=) 12...Qd7 (12...a6 13.ba6 Ra6 14.Bc5 dc5 15.Nd5+=) 13.Re1 (13.Nd5 a6=) 13...Rad8 (13...a6 14.d4 ed4 15.Qd4 ab5 16.Bc5 dc5 17.Qd7 Bd7 18.Nb5+=) 14.Bb4 (14.d4 ed4 15.Qd4 c6=) 14...Kh8 (14...a6 15.d4 ed4 16.Qd4=) 15.a4 Qe8 (15...Bg5 16.a5=) 16.Nd5 Bd5 (16...c6 17.bc6 bc6 18.Ne7 Qe7 19.Rb1=) 17.cd5 (17.ed5 Qd7+=) 17...Bg5 (17...a6 18.ba6 Na6 19.Bc3+=) 18.Ra2 (18.d4 Nd7+/–) 18...g6 (18...Bf4!?+=) 19.d4+/– Nd7 20.Rc2 ed4? (better is 20...Rc8+/–) 21.Rc7+– Ne5 22.Qd4 (22.Rb7 Rd7 23.Rd7 Qd7 24.Qd4 Kg8+–) 22...Bf6? (22...Rd7 23.Rc2+–) 23.Qe3 (23.Qa7 Nd3 24.Rb1 Nb4 25.Rb4 Qe5+–) 23...a6 (23...Rd7 24.Rd7 Qd7 25.Be2+– (25.Qa7?! Nf3 26.gf3 Be5+–)) 24.Rb7 ab5 25.ab5 Rc8 (25...Rb8 26.Rb8 Qb8+–) 26.Bd6 Nc4 27.Qf4 Nd6 (27...Be5 28.Be5 Ne5+–) 28.Qf6 Kg8 29.Qd6 Rd8 (29...Rc2 30.b6+–) 30.Qe7 1–0. Humeau,Cyril (2160) – Ouadi,Wahbi (2030), 4th Balagne Open, Calvi FRA, 2007.

6.b5 Nd4 7.Nge2 0–0 8.Nd4 ed4 9.Nd5 Nd5+=.

6.b5 Nd4 7.Nge2 c5 8.bc6 bc6 9.Nd4 ed4 10.Ne2 c5 11.Ng3 Qa5 12.Be2 Rb8 13.Qc2 Bd7 =.

6.b5 Nd4 7.Nge2 c6 8.Nd4 ed4 9.Ne2 c5 10.Ng3 a6 11.ba6 Ra6 12.Be2 0–0 13.0–0 Re8=.

5.e4 Bd7

6.a3 c5 7.Nf3 Nc6 8.bc5 dc5 9.Be2 Bd6=.

6.b5 a6 7.Nf3 ab5 8.cb5 c5 9.Bc4 0–0=.

6.Be2 Nc6 7.b5 Nd4 8.Nf3 0–0 9.Nd4 ed4=.

6.Nf3 0–0 7.Be2 Nc6 8.a3 Nd4 9.Nd4 ed4 10.Nd5=.

6.Nf3 Nc6 7.a3 0–0 8.d4 (8.Bd3 Re8 9.0–0 Be6 10.Nd5=) 8...ed4 (8...a5 9.de5 Ne5 10.Be2=) 9.Nd4 Ne5 (9...Nd4 10.Qd4=) 10.f4 (10.Be2 c5 11.Ndb5 cb4 12.ab4 Be6+=) 10...Neg4 (10...Ng6 11.Qd2=) 11.Qf3 h5 12.h3+= Nh6 13.0–0–0 a6 14.e5+/– de5 15.fe5 Nh7 16.Qh5 Bg5 17.Kb1 g6 18.Qf3+– c6 19.Ne4 Be7 20.g4 Kh8?? 21.Nc2 Qe8 22.e6 Nf6 23.Rd7 fe6 24.Nf6 Rf6 25.Bf6 Kg8 26.Re7 Qf8 27.Rg7 Qg7 28.Bg7 Kg7 29.Bd3 Rf8 30.Qe4 Rf6 31.g5 Rf5 32.gh6 Kh6 33.Qe6 (33.Qe6 Kg7 34.Bf5 a5 35.Qg6 Kf8 36.Qf6 Ke8 37.Re1#) 1–0. dennism (2100) – bar (1905), net–chess.com, 2008.

6.Nf3 Nc6 7.b5 Nd4 8.Nd4 ed4 9.Nd5 Nd5=.

5.e4 Be6

6.Qa4 Bd7 7.b5 0–0 8.Nf3 Na6 9.Be2 Nc5=.

6.b5 Nbd7 7.Nf3 Nc5 8.d4 ed4 9.Nd4 0–0=.

6.Nf3 0–0!?+=.

6.Nf3 Nc6 7.b5 Nd4 8.Nd4 ed4 9.Ne2 d3+=.

6.Nf3 h6 7.d4= ed4 (7...0–0 8.Be2+= (worse is 8.de5 de5 9.a3 a5+=)) 8.Nd4+= Bg4 (8...0–0 9.Be2+=) 9.f3 Bd7 (9...Bc8 10.Be2+=) 10.Be2 (10.b5 0–0+=) 10...0–0 (10...Nc6 11.a3=) 11.0–0 (11.b5 Bc8+/–) 11...Na6 (11...Nc6 12.a3+=) 12.Nc2 c6 13.a3 Nc7 14.Ne3 (14.Nd4 a5+=) 14...a5 (14...Ne6 15.Nf5 Nf4 16.Nd6+=) 15.Kh1 (15.Qd2!?+/–) 15...ab4 (15...Na6 16.Nc2=) 16.ab4 Ra1 17.Qa1 Nfe8 (17...Na6 18.b5 Nc5 19.Na4 Na4 20.Qa4=) 18.Rd1 (18.Qa7 Nf6+/–) 18...Bf6 (18...Nf6 19.b5+/–) 19.Na4 (19.c5 Qe7+/–) 19...Qe7 (19...Bb2 20.Qb2 Be6 21.f4+/–) 20.Bf6 Nf6 21.Qd4 (better is 21.Nb6 Be6 22.Qa7+/–) 21...c5= 22.bc5 Ne6 23.cd6 Qe8 24.Qb2 (24.Qa7 Ba4 25.Ra1 Nf4=) 24...Ba4 25.Rb1 (25.Ra1 Bc6=) 25...Bc6+= 26.Nf5 Qd8 27.e5 (27.Qc3 Re8+=) 27...Nd7+= 28.Ne7 Kh8 29.Bd3? (better is 29.Ra1!?=) 29...Qa5–/+ 30.Nc6 (30.c5!?–/+) 30...bc6–+ 31.Be4? (better is 31.Bf5 Qe5 32.Qe5 Ne5 33.Be6 fe6 34.c5–+) 31...Ne5 32.Qb7 (32.Bd5 cd5 33.Qe5 Qa2–+) 32...Qc5 33.Qe7 (33.Rd1 Rd8–+) 33...Nc4 34.Qf8 (34.Rd1–+) 34...Nf8 0–1. Uddin,Md Saif (2100) – Munshi Hafizur,Rahman, 2rd Dhaka Bangladesh, National B Champi, 2016.

5.Nf3 0–0

6.a3 Nbd7 7.d4 e4 8.Nd2 e3 9.fe3 Ng4+=.

6.a3 Bg4 7.d3 (7.d4 Nbd7+=) 7...Nc6 (7...a5 8.b5+=) 8.e3= d5 (8...a6 9.Be2=) 9.Be2 (9.b5 Nb8=) 9...d4 10.ed4 ed4 11.Na2 Re8 12.0–0 Bf3 (12...Qd7 13.h3 Bf3 14.Bf3=) 13.Bf3+= a6 (13...Rb8 14.Re1+=) 14.Nc1+/– Bd6 (14...a5 15.b5 Ne5 16.Bb7+/–) 15.Bc6 (15.c5 Be7 16.Bc6 bc6+–) 15...bc6+/– 16.Nb3 (16.Bd4?? Bh2 17.Kh2 Qd4–+) 16...Qd7 (16...Bf4 17.Bd4 a5 18.Qf3+–) 17.Bd4+– (17.Nd4? Be5–+) 17...Qf5 18.Bf6 (18.f4 Re6+–) 18...Qf6 (18...Qf4 19.g3 Qf6 20.d4+/–) 19.d4 (19.c5 Bf4+/–) 19...Qh6 (19...Re6 20.c5 Bf4 21.g3+–) 20.g3+– Re4 (20...Qf6 21.Re1+–) 21.Qd3 Rae8 (21...Re6 22.Rae1+–) 22.Nd2 (22.c5 Qh3 23.Ra2 Rh4+=) 22...R4e6 23.Nf3 Ra8 (23...a5 24.ba5 c5 25.d5+–) 24.Rfe1 a5 25.ba5 (25.c5 Be7+–) 25...Ra5 (25...c5 26.d5 Re1 27.Re1+–) 26.c5 Bf8 (26...Be7 27.Qb3+–) 27.Ne5 (27.Re6 fe6 28.Ne5 Qf6+–) 27...Qh3 (27...Qh5 28.Kg2+–) 28.Qc4 (28.Qf3 Rf6 29.Qg4 Qg4 30.Ng4 Re6 31.Re6 fe6+–) 28...Ra8 (28...Rf6 29.Re3+–) 29.a4 (29.Re4 Rf6+–) 29...g6 (29...Rae8 30.a5 Be7 31.a6+–) 30.a5 (30.Re4 Rf6+–) 30...Bg7 (30...Bh6+–) 31.Nf7?? (better is 31.a6+–) 31...Kf7= 32.Re4 (32.Re4 Ke7 33.Rae1 Re4 34.Re4 Be5 35.Qb4+– (35.de5?! Ra5 36.Re1 Qe6 37.Qh4 Ke8+–)) 1–0. Pleschke,Helmut – Meisinger,Peter, 1. B4 Thementurnier, 2000.

6.b5 a6 7.e4 Re8 8.a4 Nbd7 9.Be2 Nc5 10.Qc2 Nh5 11.Nd5 c6 12.Ne7 Qe7 13.g3 ab5 14.cb5 cb5 15.ab5 Ra1 16.Ba1 Bh3 17.d3 Rc8 18.Rg1 (better is 18.Qb1!?–/+) 18...Ne4!–+ 19.Qb1 (19.de4 Rc2 Discovered attack) 19...Nc3 Black plans e4 20.Bc3 Rc3 21.Kd2 Ra3 22.Qb2 Ra8 23.d4 e4 24.Ra1 Ra1 25.Qa1 ef3 26.Qa8 Qf8 27.Qf8 Kf8 28.Bf3 Nf6 29.Bb7 Ke7 30.b6 Kd8 0–1. Schulz,Hans_Juergen – Pilz,Erhard, TT–05 TSC, 2003.

6.b5 Bf5 7.d3 Be6 8.e4 Bg4 9.Be2 Nbd7=.

6.Qc2 b6 7.e3 Bb7 8.Bd3 Nc6 (8...Nbd7 9.Ng5 h6 10.Nh7=) 9.a3 a6 10.0–0 h6 11.Be2 Na7 12.d4 ed4 13.Nd4 c5 14.Nf5 Re8 15.f4 (15.Qd3 Rc8+/–) 15...Bf8 16.Bf3 Bf3 17.Rf3 (worse is 17.gf3 g6 18.Kh1 b5=) 17...Nc6? (better is 17...g6 18.Ng3 Bg7+=) 18.Nd5+– Ne4 19.Ng3 b5?? (better is 19...f5+–) 20.Ne4 (20.Ne4 Re6 21.Rg3+–) 1–0. pcmvr – felippe (2485), net–chess.com, 2016.

6.Qc2 Nc6 7.a3 a5 8.b5 Nd4 9.Nd4 ed4 10.Na4 c5 11.bc6 bc6 12.Bd4 c5 13.Bf6 Bf6 14.Rb1 Ra7 15.e3 Bb7 16.Nb6 g6 17.Nd5 Bg7 18.Be2 Bd5 19.cd5 Qg5 20.Bf3 f5 21.g3 Qe7 22.0–0 Rb7 23.Rb7 Qb7 24.Rb1 Qa6 25.Qa4 Qd3? (better is 25...Qa7+–) 26.Rb7 Qd2 27.Qd7 Qc3 28.Qe6 Kh8 29.Qd6 Rg8 30.Qc7 Qa3 31.d6 Qa1 32.Kg2 Qe5 33.Ra7 g5 34.Ra5 g4 35.Be2 Qd5 36.Kg1 Qe6 (36...Bf6 37.Rc5 Qd2 38.Bf1+– (38.Rf5?! Qe2 39.Qf7 Bd8+–)) 37.Qc5 Rd8 38.Qc7 Rf8 39.Bd3 Qb3 40.Ra7 Qc3 41.Bf5! h5 (41...Rf5 42.Ra8 Double attack) 42.Qc3 Bc3 43.Rh7 Kg8 44.Rh5 1–0. pvanr (2240) – condoru (2020), gameknot.com, 2015.

6.Qc2 Be6 7.e4 Na6 8.a3 c5 9.b5 Nc7 10.Be2 Nh5 (11.0–0 Nf4=). Ullrich,Monika – Buenjer,Carsten (1845), V0103 DESC, 2002.

6.Qc2 Ng4 7.h3 Nh6 8.Nd5 Bf5 9.e4 Bg6 10.c5 c6 11.Ne7 Qe7 12.cd6 Qd6 13.Ne5 Qb4 14.f3 Re8 15.Bc4 Kh8 16.Qc3 Qe7?? (better is 16...Qc3 17.Bc3 Bh5+/–) 17.Nf7+– (17.Nf7 Qf7 18.Bf7+–) 1–0. Nemec,Zdenek (1915) – Pauk,Jozef, 30. LSS No Engine Cup Preliminary, 2010.

6.e4 a5 7.b5 Nbd7 8.Be2 Nc5 9.Qc2 a4 10.Ba3 Nfd7 11.0–0 c6 12.Rab1 Qc7 13.Rb4 Can a4 get defended? 13...cb5 14.cb5 Qa5? (better is 14...Nb6!?=) 15.Nd5+/– Bd8 16.d4 ed4 17.Rd4 Bf6 18.Nf6 Nf6 19.e5 (19.Bc5?! dc5 20.Qc5 Be6+/–) 19...de5?! (19...Nfd7 20.Ng5 g6 21.ed6 Ne6 22.Ne6 fe6+–) 20.Qc5 (20.Bc5?! ed4 21.Bf8 Kf8 22.Nd4 Bd7+=) 20...Nd7 21.Rd7! Bd7 (21...Bd7 22.Qd6 Double attack (22.Qd6 Decoy)) 22.Bb4 (22.Qe5?! Rfe8 23.Be7 Be6+=; 22.Ne5?! Rfc8 23.Qd5 Be6 24.Qb7 Qd2+–) 22...Qa7 23.Qa7 (23.Qa7 Ra7 24.Bf8 Kf8 25.Ne5+–) 1–0. poesimannen (1925) – carlog (1895), gameknot.com, 2013.

6.e4 Nc6 7.a3 Nd4 8.Nd4 ed4 9.Nd5 Ne4+=.

6.e4 Nc6 7.b5 (7.a3 Nd4+=) 7...Nd4 8.Bd3 (8.Nd4 ed4 9.Nd5 Ne4+=) 8...Bg4 (8...Nf3 9.Qf3 a6 10.0–0+=) 9.Be2 Ne2 (9...Nf3 10.Bf3 Be6 11.Be2=) 10.Qe2 Nh5 11.Qe3 (11.Nd5 c6 12.bc6 bc6 13.Ne7 Qe7+=) 11...Nf4 (11...f5 12.h3 Nf4 13.Rh2 Bf3 14.Qf3 fe4 15.Qe4–/+) 12.0–0 f5 13.ef5 (13.d4 fe4 14.Qe4 Nh3 15.Kh1 Bf3 16.gf3 ed4=) 13...Rf5 (13...Bf5 14.d4 Bg5 15.Kh1+=) 14.Qe4 c6 (14...Rf7 15.Kh1–/+) 15.h3 (15.bc6 bc6 16.Qc6 Nh3 17.Kh1 Bf3 18.gf3 Rc8–/+) 15...Bf3 16.Qf3 Rg5 17.bc6 (17.g4 cb5 18.cb5 Qd7–/+) 17...Ng2 (17...bc6 18.g4+=) 18.Kh2 bc6 19.Qc6 Nf4 (19...Rb8 20.Ba3 Rb6 21.Qe4+=) 20.Nd5 Nd5 21.Qd5 Kh8 22.Qe4 Rc8 (22...Rh5 23.f4=) 23.d3 (23.f4 d5 24.cd5 ef4+=) 23...Qd7+= 24.Rab1 White launches an attack 24...Rh5 Do you see the mate threat? 25.Qf3 Rh6 (25...Rf5!? 26.Qg2 Rcf8+=) 26.Bc1= Rf8 (26...Rf6 27.Rb7 Qd8 28.Qg2=) 27.Qg2 Rh5 (27...Rg6!? 28.Qb7 Qe6=) 28.Rb7+= Qe6 29.Ra7 Bf6 30.Re1 (30.Be3 Qf5+=) 30...Qf5 31.Re3 Bg5?? (better is 31...Qf4 32.Kh1 Rf5+=) 32.Rf3!!+– Qc8 (32...Qf3 33.Qf3 Theme: Double Attack) 33.Bg5 Rf3 (33...Rg8 34.Rg7! Rg7+–) 34.Qf3 (34.Qf3 Qh3 35.Qh3 Rh3 36.Kh3+–) 1–0. Woschkat,Karl_Heinz – Moro Lorente,Ricardo, IECG, 1998.

6.g3 Bf5 (6...a5 7.b5 h6 8.d4 Nbd7 9.Bg2 ed4 10.Qd4 Nc5) 7.Bg2 a5 8.b5 Nbd7 9.Nh4 Be6 10.Bb7 Rb8.

6.a3 a5

7.b5 Ra7 A) 8.e4 Nbd7 (8...Be6 9.d4 Nbd7 10.Be2 a4 11.0–0 Re8 12.Re1+=; 8...Re8 9.Be2 Bg4 10.0–0 Nbd7 11.d4 c5 12.de5+=; 8...Bg4 9.Be2 Nbd7 10.d4 c5 11.de5 de5 12.0–0+=) 9.Be2 Nc5 10.d4 Nce4 11.Ne4 Ne4 12.0–0=; B) 8.e3 Nbd7 (8...c6 9.d4 e4 10.Nd2 d5 11.Be2 Be6 12.cd5=; 8...Be6 9.Be2 Qd7 10.0–0 Bf5 11.d4 e4 12.Nh4+=; 8...Bg4 9.Be2 c6 10.0–0 Nbd7 11.d4 Bf5 12.Nh4=; 8...Re8 9.d4 Nbd7 10.Bd3 ed4 11.Nd4 Ne5 12.0–0=; 8...Bf5 9.Be2 Qd7 10.0–0 Re8 11.d4 e4 12.Nd2+=) 9.Be2 Ra8 10.0–0 Re8 11.d4 ed4 12.Nd4=; C) 8.d4 e4 (8...ed4 9.Qd4 c5 10.Qf4 Re8 11.Rd1 a4 12.e4+=; 8...Nbd7 9.e4 ed4 10.Qd4 Nc5 11.Be2 Ra8 12.Rd1+=) 9.Nd2 e3 10.fe3 Nbd7 11.e4 Nb6 12.e3=.

7.b5 Qd7 A) 8.e4 Rd8 (8...Re8 9.d4 Qg4 10.de5 Ne4 11.Nd5 Bd8 12.Ne3=; 8...Qg4 9.d4 ed4 10.Nd4 Qg6 11.Qc2 Re8 12.f3=; 8...Qe8 9.d4 Nbd7 10.Bd3 ed4 11.Nd4 Ne5 12.0–0+=; 8...Qe6 9.d4 ed4 10.Nd4 Qe5 11.Nf3 Qf4 12.h3+=; 8...Kh8 9.d4 ed4 10.Nd4 Bd8 11.Bd3 Qe8 12.0–0+=) 9.d4 ed4 10.Qd4 Qg4 11.Ra2 Re8 12.h3=; B) 8.Qc2 c5 (8...Re8 9.e4 Qd8 10.Be2 Bg4 11.0–0 Nbd7 12.d4=; 8...Qf5 9.e4 Qf4 10.d4 ed4 11.Nd5 Nd5 12.cd5=; 8...Qg4 9.Nd5 Bd8 10.Ne3 Qh5 11.d4 ed4 12.Bd4=; 8...Qe6 9.e4 Qg4 10.Rd1 Re8 11.h3 Qg6 12.g4=; 8...Rd8 9.e4 Re8 10.Be2 Qg4 11.0–0 Qg6 12.d3=; 8...h6 9.e4 Qg4 10.Rd1 Nbd7 11.d4 ed4 12.Nd4=) 9.e4 Qg4 10.Rb1 Be6 11.d3 b6 12.Bc1=; C) 8.d4 Qf5 (8...e4 9.Nd2 e3 10.fe3 c6 11.e4 Qg4 12.bc6+=; 8...Rd8 9.e4 ed4 10.Nd4 c5 11.Nf5 Qe8 12.Qf3+/–) 9.e3 e4 10.Nd2 Qg6 11.h3 Re8 12.Qc2+=.

7.b5 Nbd7 A) 8.d3 Nc5 (8...Nb6 9.e3 Be6 10.Be2 a4 11.0–0 Qd7 12.Ng5=; 8...Re8 9.e3 Nc5 10.Be2 e4 11.de4 Nce4 12.Qc2=; 8...c6 9.e4 cb5 10.cb5 Nc5 11.Be2 Be6 12.0–0=; 8...Ne8 9.e4 f5 10.d4 ed4 11.Nd4 Nc5 12.Nf5=; 8...Ra7 9.e3 Nb6 10.Be2 Qd7 11.0–0 Qf5 12.e4=; 8...Rb8 9.e3 c6 10.Be2 Qb6 11.0–0 Re8 12.d4=) 9.e3 a4 10.d4 ed4 11.ed4 Nb3 12.Ra2=; B) 8.e4 a4 (8...Nc5 9.Qc2 Bg4 10.Be2 Ne6 11.0–0 Qd7 12.Rfd1=; 8...Re8 9.Be2 c6 10.0–0 Nc5 11.Qc2 Bg4 12.d4=) 9.d4 ed4 10.Qd4 Re8 11.Be2 Ng4 12.Qd1+=; C) 8.d4 ed4 (8...Re8 9.e3 Bf8 10.Be2 Be7 11.0–0 ed4 12.Nd4=; 8...Rb8 9.e4 ed4 10.Qd4 Nb6 11.Bd3 Be6 12.Rb1=; 8...Qe8 9.e4 ed4 10.Nd4 Nc5 11.f3 Nh5 12.Be2=; 8...c5 9.de5 de5 10.e3 Re8 11.Bd3 b6 12.Qc2+=; 8...Ra7 9.e4 ed4 10.Qd4 Nc5 11.Be2 b6 12.Rd1=) 9.Nd4 Ne5 10.e4 Nfd7 11.f4 Ng6 12.Nd5=; D) 8.Qc2 Nb6 (8...Re8 9.e4 c6 10.Be2 Nb6 11.d4 ed4 12.Nd4=; 8...Nc5 9.e4 Bg4 10.Be2 Ne6 11.0–0 Qd7 12.Rfd1=; 8...c5 9.e3 Nb6 10.Be2 Re8 11.0–0 Be6 12.d3=; 8...b6 9.e3 Bb7 10.Be2 Ra7 11.0–0 Re8 12.d4+=; 8...Rb8 9.e4 Ra8 10.Be2 c5 11.0–0 Nh5 12.Rae1=; 8...Qe8 9.e4 Nc5 10.Be2 Ne6 11.0–0 c5 12.d3=) 9.e4 Bg4 10.d4 Bf3 11.gf3 ed4 12.Ne2+=; E) 8.Rb1 Nb6 (8...Nc5 9.d4 ed4 10.Nd4 Bg4 11.f3 Bc8 12.e4=; 8...Re8 9.e4 Nc5 10.Qc2 Bg4 11.Be2 Ne6 12.0–0=; 8...e4 9.Nd4 Ne5 10.e3 c5 11.bc6 bc6 12.d3=; 8...c5 9.bc6 bc6 10.e4 Nc5 11.d4 ed4 12.Nd4=; 8...Ra7 9.d4 e4 10.Nd2 e3 11.fe3 Ng4 12.Nd5=; 8...Rb8 9.e4 Nc5 10.d4 Nce4 11.Ne4 Ne4 12.Bd3+=) 9.e4 Be6 10.d4 Bc4 11.de5 de5 12.Ne5+=; F) 8.e3 e4 (8...Ra7 9.d4 Re8 10.Bd3 ed4 11.Nd4 Nc5 12.Nd5=; 8...Re8 9.Be2 Nc5 10.d4 ed4 11.Nd4 Nce4 12.Qc2+=; 8...Rb8 9.Be2 e4 10.Nd4 Ne5 11.Qc2 c5 12.Nb3=) 9.Nd4 Nc5 10.Be2 Bg4 11.f3 ef3 12.Nf3=.

7.b5 Be6 A) 8.e3 Nbd7 (8...Nfd7 9.d4 Bf6 10.Bd3 ed4 11.ed4 Nb6 12.d5=; 8...Re8 9.Be2 Nfd7 10.d4 Nb6 11.d5 Bf5 12.0–0=; 8...Bg4 9.Be2 Nbd7 10.0–0 Nb6 11.c5 dc5 12.Ne5=; 8...Ng4 9.d4 ed4 10.Nd4 Ne5 11.Nd5 Nbd7 12.Be2=; 8...c6 9.Be2 Nbd7 10.0–0 Rc8 11.Ng5 d5 12.Ne6=; 8...h6 9.d4 Nbd7 10.Be2 Qe8 11.0–0 Bf5 12.c5+=) 9.d4 c6 10.Ng5 Bg4 11.f3 Bf5 12.e4=; B) 8.d4 e4 (8...Nbd7 9.e4 Qe8 10.Bd3 ed4 11.Nd4 Nc5 12.0–0+=; 8...ed4 9.Qd4 Re8 10.e4 Bg4 11.Be2 Nfd7 12.h3=; 8...Bc4 9.de5 de5 10.Qd8 Rd8 11.Ne5 Bb3 12.g3=) 9.Nd2 e3 10.fe3 Ng4 11.Qc2 Ne3 12.Qe4+=; C) 8.d3 c6 (8...Nbd7 9.e3 Rc8 10.Be2 c6 11.0–0 d5 12.d4=; 8...Re8 9.e3 Nbd7 10.Be2 h6 11.0–0 Nb6 12.Qc2=) 9.e4 Nbd7 10.Ng5 d5 11.ed5 cd5 12.Ne6=; D) 8.e4 Ng4 (8...Nbd7 9.d4 Qe8 10.Bd3 Bg4 11.Be2 Rd8 12.0–0+=; 8...a4 9.d4 Nbd7 10.Bd3 Bg4 11.Na4 Re8 12.0–0+=) 9.h3 Nf6 10.d4 ed4 11.Nd4 Nbd7 12.Bd3=.

7.b5 Re8 A) 8.d4 ed4 (8...Nbd7 9.e3 ed4 10.Nd4 Nc5 11.Be2 Nfe4 12.Ne4=; 8...Ng4 9.de5 Ne5 10.Ne5 de5 11.Qd8 Bd8 12.e4=) 9.Qd4 Bg4 10.Nd5 Nbd7 11.Rd1 a4 12.e3=; B) 8.e4 c6 (8...Qd7 9.d4 ed4 10.Nd4 Qd8 11.Bd3 Nbd7 12.0–0=; 8...a4 9.Bd3 Bg4 10.h3 Bh5 11.Bc2 Nbd7 12.Na4=; 8...Nbd7 9.Be2 Nb6 10.d4 Bg4 11.de5 de5 12.Ne5=; 8...Bg4 9.Be2 Qd7 10.0–0 Qd8 11.d4 Nbd7 12.Re1+=; 8...h6 9.Be2 Nbd7 10.0–0 Nc5 11.Qc2 Be6 12.d4=) 9.Be2 cb5 10.cb5 d5 11.ed5 Bc5 12.d4=; C) 8.d3 c6 (8...Be6 9.e4 Nbd7 10.Be2 Nc5 11.0–0 Bg4 12.h3=; 8...Bg4 9.e4 Nbd7 10.Be2 Rf8 11.0–0 Nc5 12.Re1=; 8...Bf5 9.e4 Bg4 10.Be2 Nbd7 11.h3 Bh5 12.0–0=; 8...Nbd7 9.e3 Nc5 10.Be2 a4 11.d4 ed4 12.Nd4=; 8...Ra7 9.e4 Nbd7 10.Be2 Nc5 11.0–0 Ra8 12.Bc1=; 8...Bd7 9.e4 Ng4 10.Be2 f5 11.d4 ed4 12.Nd4+=) 9.e3 Bg4 10.Be2 Nbd7 11.0–0 d5 12.h3=; D) 8.Qc2 Bg4 (8...Nbd7 9.e4 Nc5 10.Be2 Qd7 11.d4 ed4 12.Nd4=; 8...Be6 9.e4 Nbd7 10.Be2 Bg4 11.0–0 Nb6 12.Nd1=; 8...c6 9.e4 cb5 10.cb5 Bg4 11.Be2 Nbd7 12.0–0=) 9.e4 Bf3 10.gf3 c6 11.Rd1 d5 12.bc6=; E) 8.e3 Bf5 (8...Nbd7 9.Be2 h6 10.d4 c5 11.0–0 ed4 12.ed4+=; 8...Kh8 9.Be2 Nfd7 10.0–0 Bf6 11.Ne4 Nc5 12.Nf6+=; 8...Be6 9.Be2 Nbd7 10.d4 Ra7 11.0–0 Bg4 12.e4+=; 8...Bg4 9.Be2 Nbd7 10.0–0 Nc5 11.d4 ed4 12.Nd4=; 8...Bd7 9.Be2 c6 10.0–0 cb5 11.cb5 Bg4 12.e4+=; 8...c6 9.Be2 Nbd7 10.0–0 Nb6 11.d4 e4 12.Nd2+=) 9.Be2 Nbd7 10.d4 c6 11.0–0 Rc8 12.Rc1=.

7.b5 Bf5 A) 8.d3 Re8 (8...Ng4 9.h3 Nf6 10.e4 Be6 11.Be2 Nbd7 12.0–0=; 8...Nbd7 9.e4 Be6 10.Be2 Nc5 11.0–0 c6 12.Rb1=; 8...Be6 9.e4 Ng4 10.Be2 f5 11.0–0 Nd7 12.d4=; 8...Ra7 9.e4 Bg6 10.Be2 Nfd7 11.d4 Bf6 12.0–0+=; 8...Qe8 9.e4 Bg6 10.Be2 Nbd7 11.Nh4 Nc5 12.0–0+=; 8...c6 9.e4 Bg4 10.Be2 cb5 11.Nb5 Nc6 12.0–0=) 9.e4 Bc8 10.Be2 Nbd7 11.Nd5 Nd5 12.cd5=; B) 8.d4 e4 (8...Nbd7 9.e3 Ra7 10.Be2 c6 11.0–0 Re8 12.Rc1=; 8...ed4 9.Nd4 Be6 10.e3 Nbd7 11.Be2 Ne5 12.Ne6=) 9.Nd2 c6 10.bc6 bc6 11.Qc2 d5 12.Rb1=; C) 8.Ra2 e4 (8...Re8 9.d4 Nbd7 10.e3 Bg6 11.Be2 ed4 12.Nd4=; 8...Qe8 9.e3 Nbd7 10.Be2 Nb6 11.0–0 a4 12.d4=; 8...Ra7 9.e3 Nbd7 10.Be2 Nb6 11.d4 e4 12.Nd2=; 8...Qd7 9.e3 c5 10.d4 cd4 11.ed4 e4 12.Nd2=; 8...Nbd7 9.e3 c5 10.d3 Re8 11.Be2 Nb6 12.0–0=; 8...Ne4 9.Ne4 Be4 10.e3 Bf6 11.Be2 c6 12.d3=) 9.Qc2 Nbd7 10.Ng5 Nc5 11.f3 Re8 12.Nge4–/+; D) 8.Rc1 Nbd7 (8...Re8 9.d4 Nbd7 10.e3 Bg6 11.Be2 ed4 12.Nd4=; 8...Qd7 9.d4 e4 10.Nd2 Re8 11.e3 c5 12.d5+=; 8...Ra7 9.d3 Nbd7 10.e4 Bg6 11.Be2 Ng4 12.d4=; 8...Qe8 9.e3 Nbd7 10.d4 Bg4 11.Be2 ed4 12.Nd4+=; 8...Ne4 9.Ne4 Be4 10.e3 Nd7 11.d4 Bg6 12.Be2=; 8...h6 9.e3 Re8 10.Be2 Nbd7 11.0–0 c5 12.d4=) 9.e3 Bg4 10.h3 Bh5 11.d3 c6 12.Be2=; E) 8.e3 c5 9.d3 Nbd7 10.Be2 Re8 11.0–0 Nb6 12.e4=.

7.b5 Bg4 8.e4 (8.d3 Nbd7 (8...Re8 9.e3 Ra7 10.Be2 Nbd7 11.0–0 Nb6 12.h3=; 8...Qe8 9.e3 Nbd7 10.Be2 c6 11.0–0 d5 12.h3=; 8...Qc8 9.e3 c6 10.Be2 cb5 11.cb5 Nbd7 12.Rc1=; 8...Ra7 9.e3 Nbd7 10.Be2 c6 11.0–0 d5 12.d4=; 8...Be6 9.e3 c6 10.Be2 Nfd7 11.0–0 d5 12.bc6=; 8...Kh8 9.e3 Nbd7 10.Be2 c6 11.0–0 d5 12.h3=) 9.e3 c6 10.Be2 d5 11.0–0 Rc8 12.h3=; 8.d4 Nbd7 (8...ed4 9.Nd4 Nbd7 10.f3 Be6 11.e4 Ne5 12.Nd5=) 9.h3 Bf3 10.gf3 ed4 11.Qd4 Nc5 12.Rd1=; 8.h3 Bf3 (8...Be6 9.e4 Bc8 10.Be2 Nbd7 11.d4 ed4 12.Qd4+=; 8...Bf5 9.d3 Nbd7 10.e4 Be6 11.Be2 Nc5 12.0–0=; 8...Bc8 9.e4 Nbd7 10.Be2 c6 11.d4 c5 12.de5+=) 9.gf3 Nbd7 10.Bg2 Nb6 11.d3 d5 12.cd5=; 8.Ra2 c6 (8...Nbd7 9.d4 c5 10.de5 Ne5 11.e4 Nfd7 12.Nd5=; 8...Re8 9.h3 Bf3 10.gf3 Nbd7 11.Bg2 Rb8 12.Rg1=; 8...Ra7 9.e4 Nbd7 10.Be2 Nb6 11.d4 Bf3 12.gf3=; 8...Bf5 9.e3 c5 10.d4 cd4 11.ed4 e4 12.Nd2=) 9.h3 Be6 10.e3 cb5 11.Nb5 Na6 12.Ng5=) 8...Nbd7 (8...Re8 9.Be2 Nbd7 10.d4 c5 11.de5 de5 12.0–0=) 9.Be2 (9.d4 ed4 10.Qd4 Nc5 11.Rd1 Re8 12.Be2+=) 9...Nc5 10.d3 Nh5 (10...Ne6 11.0–0 Nf4 12.Bc1=) 11.Bc1 a4 (11...f5 12.h3=) 12.Rb1 (12.h3=) 12...Nf4 13.Bf4 ef4 14.0–0 Bf6 15.Nd5 Bf3 16.Bf3 (worse is 16.gf3 Bd4+=; 16.Nf6?! Qf6 17.Bf3 Qc3=) 16...Nb3 17.Nf4 Bg5 18.g3 Bf4 19.gf4 Qf6 20.f5 Qc3 21.Kg2 c6 22.bc6 bc6 23.Re1 Nd2 24.Rc1 Qd3 25.Qe2 Qe2 26.Re2 Nb3 27.Rd1 Rfd8 28.e5 de5 29.Rd8 Rd8 30.Re5 Nd2 31.Ra5 Nc4 32.Ra4 Ne5 33.Be4 c5 34.Ra5 Nc4 35.Rc5 Na3 36.f6 h6 37.fg7 Kg7 38.h3 Rd4 ˝–˝. Benassi,Aspasio – Friselle,Mirco, CEO06 Asigc, 2002.

6.e3

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

6.e3 Bg4 7.Be2 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 Bg4 6.Be2 0–0 7.Nc3).

5.Nf3 a5

6.Qa4 Nbd7 7.ba5 0–0 8.d4 ed4 9.Nd4 Nc5+=.

6.ba5 Nc6 7.e4 Be6 8.Be2 Na5 9.d3 0–0=.

6.b5 0–0 7.e3 Nbd7 8.Qc2 (8.Be2 Nc5 9.0–0 Bf5 10.d4 ed4) 8...Nc5 9.Ba3 (9.d4 ed4 10.ed4 Ne6) 9...Re8 10.Bc5 dc5.

6.b5 Nbd7 7.e3 0–0 8.Be2 Nc5 9.0–0 Bd7 10.d4 ed4.

6.b5 Bf5 7.d3 0–0 8.e4 Be6 9.Be2 Nbd7=.

5.Nf3 Nc6

6.a3 0–0 7.e3 Bg4 8.Be2 e4 9.Ng5 Ne5 10.f3 ef3 11.Nf3 Be6 =.

6.a3 a6 7.d4 (7.e4 0–0 8.Be2 a5 9.b5 Nd4 10.0–0 Ne2 11.Qe2 Re8=; 7.e3 Bg4 8.h3 Be6 9.d4 ed4 10.Nd4 Nd4 11.Qd4 c5=) 7...ed4 (7...Nd4 8.Nd4 ed4 9.Qd4 Be6 10.e4 a5 11.Bd3 ab4=) 8.Nd4 Nd4 9.Qd4 Be6 10.e3 (10.e4 a5 11.Bd3 ab4=) 10...h6 (10...c5 11.Qf4= 0–0=) 11.Bd3 (11.Be2 c5= (11...Rb8+=)) 11...Qd7 (11...c5!? 12.Qf4 d5 13.cd5 cb4 (worse is 13...Nd5 14.Nd5 Bd5 15.Be4+/–) 14.ab4 Nd5 15.Nd5 A) worse is 15...Bd5 16.0–0+= (worse is 16.Bg7 Rg8 17.Bh6 Bg2=); B) 15...Qd5+=) 12.0–0+= Bf5 13.e4 Be6 14.f4 0–0? (better is 14...Bg4+/–) 15.f5+– Bc4 16.Bc4 Qc6 (16...b5 17.Be2+–) 17.Nd5 Nd5 (17...Rae8+–) 18.Qg7 1–0. pierre – idris, internet, 2010.

6.a3 Bf5 7.e3 0–0 8.d3 Qd7 9.Be2 a5 (9...a6 10.0–0=) 10.b5+= Nd8 11.0–0 c6 12.d4 (12.Rc1 Bg4+=) 12...e4= 13.Nh4 Bg4 14.f3 ef3 15.Bf3 (15.Nf3 Qe6 16.Bc1 d5+=) 15...Bf3 (15...Qe6 16.Qd3+=) 16.Qf3 g6 (16...cb5 17.cb5 d5 18.Nf5+=) 17.Na4 (17.e4+=) 17...Qg4 (better is 17...Rb8!?=) 18.Nb6+/– Rb8 19.d5 Qf3 20.Nf3 cd5 (20...Re8 21.Rab1 Ne4 22.Nd7+=) 21.cd5 (21.Rad1 Ne4 22.Nd7 Rc8 23.Nf8 Bf8 24.cd5 Rc5+/–) 21...Re8+/– 22.Nd2 Ng4 23.h3 (23.Ndc4 Bg5+–) 23...Ne5? (23...Ne3 24.Rfe1 Nc2+/–) 24.Be5+– de5 25.g4 Bc5 26.Ndc4 Kg7 27.Rac1 e4? (better is 27...Bb6 28.Nb6 h6+–) 28.Nd7 (28.Nd7 Rc8 29.Nc5 Rc5 30.Nd6 Rc1 31.Ne8 (31.Rc1?! Re7+–) 31...Kf8 32.Rc1 Ke8 33.g5+–) 1–0. aspasio – gcohen (2645), net–chess.com, 2014.

6.Qa4 0–0 7.b5 Nb8 8.e4 Nbd7 9.Qc2 Nb6=.

6.b5 Na5 7.e4 Bg4 8.d4 ed4 9.Qd4 0–0 10.Be2 Re8 11.Nd5 c6 +=.

6.b5 Nb8 7.e4 Bg4 8.Be2 Nbd7 9.d4 0–0=.

5.Nf3 Bf5

6.a3 A) 6...0–0 7.e3 (7.d4 e4 8.Nd2 c6 9.d5 Nbd7 10.e3 a5=; 7.d3 Be6 8.e4 Bg4 9.Be2 a5 10.b5 Nbd7=; 7.Rc1 a5 8.b5 Nbd7 9.e3 Bg4 10.h3 Bh5=) 7...a5 8.b5 Qd7 9.Be2 Ra7 10.0–0 Re8+=; B) 6...Nc6 7.d3 (7.b5 Na5 8.Qa4 c6 9.d4 e4 10.Nd2 0–0=; 7.d4 e4 8.d5 ef3 9.dc6 fe2 10.Be2 bc6=; 7.Nd5 Be4 8.b5 Nd5 9.cd5 Nb8 10.d4 Bd5=; 7.e3 0–0 8.d4 ed4 9.Nd4 Nd4 10.Qd4 a5=; 7.Qa4 a6 8.d4 a5 9.Nd5 0–0 10.b5 Nd4+=) 7...Bg4 8.e3 0–0 9.Be2 a6 10.0–0 Bf5=; C) 6...a5 7.b5 (7.d4 e4 8.Nd2 Nc6 9.b5 Nd4 10.Nde4 Ne4=; 7.e3 ab4 8.ab4 Ra1 9.Qa1 Nc6 10.Qa4 0–0=; 7.Ra2 ab4 8.ab4 Ra2 9.Na2 0–0 10.e3 e4+=; 7.ba5 0–0 8.e3 Ra5 9.d4 Nc6 10.d5 Nb8=) 7...0–0 8.e3 Nbd7 9.Be2 e4 10.Nd4 Bg6=; D) 6...Nbd7 7.e3 (7.d3 a5 8.e4 ab4 9.ab4 Ra1 10.Ba1 Bg6=; 7.d4 a5 8.e3 e4 9.Nd2 c6 10.b5 0–0=; 7.Ra2 a5 8.e3 0–0 9.b5 c5 10.d3 h6=; 7.h3 a5 8.d4 0–0 9.g4 Bg6 10.Bg2 ab4=; 7.Qb3 0–0 8.e3 c5 9.d4 cd4 10.ed4 a5=; 7.g3 a5 8.Bg2 ab4 9.ab4 Ra1 10.Qa1 Be6=) 7...c5 8.d4 ed4 9.ed4 cb4 10.ab4 d5=; E) 6...c6 7.d3 (7.e3 0–0 8.Be2 Nbd7 9.0–0 d5 10.d4 e4=; 7.d4 e4 8.Qc2 d5 9.cd5 cd5 10.e3 0–0+=) 7...0–0 8.e4 Bg4 9.Be2 a5 10.b5 Qb6=; F) 6...Qd7 7.d3 a5 8.e4 ab4 9.ab4 Ra1 10.Qa1 Bg4=.

6.Qa4 c6 7.d3 (7.Rd1 Nbd7 8.d4 Nb6 9.Qb3 e4 10.Nd2 d5+=; 7.d4 e4 8.Nd2 Nbd7 9.e3 0–0 10.Be2 d5=; 7.e3 Nbd7 8.d4 e4 9.Nd2 d5 10.b5 Nb6=; 7.b5 0–0 8.e3 cb5 9.Qb5 b6 10.Be2 Nbd7+=; 7.a3 Nbd7 8.e3 a5 9.Qb3 ab4 10.ab4 Ra1+=; 7.Rc1 Nbd7 8.e3 a5 9.b5 Nc5 10.Qd1 Bd3–/+) 7...Na6 8.a3 Qb6 9.e4 Bg4 10.Be2 Nc5=.

6.Qa4 Nc6 7.d3 (7.Nd5 0–0 8.b5 Nb8 9.Ne7 Qe7 10.d4 e4+=; 7.a3 0–0 8.b5 Nb8 9.d4 Nbd7 10.e3 a6+=; 7.b5 Nb8 8.d4 Nbd7 9.de5 de5 10.Rd1 Bd6+=; 7.Rc1 a6 8.Nd5 0–0 9.e3 Be4 10.Ne7 Ne7+=; 7.e3 a5 8.b5 Nb4 9.Rc1 Bd3 10.a3 Bf1–/+) 7...a6 8.e3 Bd7 9.Qb3 Be6 10.Be2 d5=.

6.Qa4 Qd7 7.b5 (7.Qd7 Nbd7 8.Nb5 Bd8 9.e3 a6 10.Nc3 Be7+=) 7...0–0 8.d4 ed4 9.Nd4 Bg6 10.e3 Ne4=.

6.Qa4 Bd7 7.Qc2 (7.Qd1 0–0 8.e4 Nc6 9.a3 Nd4 10.Nd4 ed4+=; 7.b5 Na6 8.e3 Nc5 9.Qd1 0–0 10.d4 ed4=; 7.Qb3 0–0 8.d4 ed4 9.Nd4 a5 10.b5 Bg4=; 7.Qa3 a5 8.b5 Bf5 9.d4 Nbd7 10.e3 0–0+=) 7...0–0 8.e4 Bg4 9.Be2 a5 10.b5 Nbd7=.

6.Qa4 Nbd7 7.d4 (7.Qb5 a5 8.a3 Ra7 9.ba5 c6 10.Qb3 Qa5–/+; 7.e3 a5 8.ba5 c6 9.Qb4 e4 10.Ng1 d5–/+; 7.d3 a5 8.Nd5 Nd5 9.cd5 0–0 10.ba5 c6+=) 7...0–0 8.e3 Bg4 9.Be2 e4 10.Nd2 Be2=.

6.Qb3 Nc6 7.b5 Na5 8.Qa4 c6 9.c5 0–0+=.

6.b5 A) 6...0–0 7.d3 (7.d4 Nbd7 8.e3 a6 9.a4 e4 10.Qc2 ab5+=; 7.e3 Nbd7 8.Be2 a6 9.0–0 ab5 10.cb5 d5+=; 7.a4 a6 8.e3 Nbd7 9.Be2 ab5 10.ab5 Ra1=) 7...Nbd7 8.e4 Be6 9.d4 a6 10.Be2 ed4=; B) 6...Nbd7 7.d3 (7.e3 0–0 8.Be2 a6 9.0–0 ab5 10.cb5 d5+=; 7.d4 0–0 8.e3 a6 9.a4 e4 10.Qc2 ab5+=; 7.Rc1 a6 8.ba6 Ra6 9.d3 0–0 10.e4 Bg4+=; 7.a4 0–0 8.e3 c5 9.a5 b6 10.ab6 ab6=; 7.a3 a6 8.d3 Nc5 9.e4 Bd7 10.ba6 Ra6+=) 7...0–0 8.e4 Be6 9.d4 ed4 10.Nd4 Nc5=; C) 6...c5 7.g3 (7.d3 0–0 8.e4 Bd7 9.Be2 a6 10.ba6 Ra6=; 7.e3 0–0 8.d3 a6 9.Be2 ab5 10.Nb5 Re8=) 7...Be6 8.d3 0–0 9.Bg2 a6 10.0–0 ab5=; D) 6...c6 7.a4 (7.d3 Bg4 8.d4 e4 9.h3 Bc8 10.Nh2 cb5+=; 7.e3 0–0 8.Be2 a6 9.0–0 ab5 10.cb5 Qd7=; 7.Rc1 0–0 8.d3 Be6 9.e4 Qa5 10.Qd2 Nbd7=; 7.Qa4 0–0 8.e3 cb5 9.Qb5 b6 10.Be2 Bc2+=; 7.d4 e4 8.Nd2 cb5 9.Qb3 Nc6 10.Nb5 a6+=; 7.Ng5 d5 8.cd5 cd5 9.e3 Nbd7 10.Rc1 Rc8+=) 7...0–0 8.e3 Qa5 9.Be2 a6 10.0–0 Nbd7=; E) 6...h6 7.d3 (7.e3 a6 8.Be2 ab5 9.cb5 0–0 10.d3 c5=) 7...Bg4 8.e4 a6 9.Be2 ab5 10.cb5 Nbd7=; F) 6...Qd7 7.d3 (7.d4 e4 8.Nh4 Ng4 9.Nf5 Qf5 10.f3 ef3+=; 7.e3 0–0 8.Be2 a6 9.Qa4 Qd8 10.0–0 Nbd7=; 7.Qa4 0–0 8.d4 ed4 9.Nd4 Bg6 10.Rd1 Qe8=) 7...Bg4 8.e4 0–0 9.Be2 c5 10.Nd2 a6=; G) 6...a6 7.a4 (7.e3 Nbd7 8.Be2 ab5 9.cb5 0–0 10.0–0 d5+=; 7.d3 Bg4 8.d4 e4 9.Ng5 ab5 10.Qb3 bc4–/+; 7.d4 e4 8.Qc2 ab5 9.cb5 d5 10.Nd2 Qd7+=) 7...0–0 8.e3 Nbd7 9.d4 e4 10.Qc2 ab5+=.

6.d3 0–0 7.a3 Nc6 8.e4 Bg4 9.Be2 Bf3 10.Bf3 Nd4=.

6.d3 0–0 7.Rb1 Bg4 8.e3 d5 9.a3 a5 10.b5 d4=+.

6.d3 0–0 7.Qb3 a5 8.ba5 Nbd7 9.Nd5 Nc5 10.Qb4 e4=+.

6.d3 0–0 7.b5 a6 8.e4 Bg4 9.Be2 ab5 10.cb5 Nbd7=.

6.d3 0–0 7.Qd2 Re8 8.e4 Bg4 9.Be2 a5 10.b5 a4=.

6.d3 0–0 7.e4 Bg4 8.Be2 Nc6 9.a3 Qd7 (9...Bf3 10.Bf3 Nd4=) 10.Nd5 Nd5 (10...Bf3=) 11.cd5 Nd8 (better is 11...Bf3!? 12.Bf3 Nd4+=) 12.Ne5+/– Be2 (12...de5 13.Bg4 Qd6 14.0–0+–) 13.Nd7+– Bd1 14.Rd1 (worse is 14.Nf8 Ba4 15.Rc1 Rc8 16.Nh7 Kh7+/–) 14...Re8 15.Rc1 c6 16.dc6 bc6 17.f4 Rc8 18.Bd4 (18.b5 Rc7 19.Nb8 c5+/–) 18...Rc7 (18...Ne6!? 19.Be3 Red8+=) 19.Nb8 Rc8 20.Ba7 c5 (20...d5 21.Kf2 de4 22.de4+=) 21.Rf1 Ne6 22.Na6 Ra8 23.f5 Ra7 (better is 23...Nf4!? 24.Rf4 Ra7+/–) 24.fe6+– Ra6?? (better is 24...f5 25.b5 fe4 26.de4 Bf6+–) 25.ef7 Kf8 26.fe8B Ke8 27.bc5 dc5 28.Rc3 Rb6 29.Kd2 Rb2 30.Rc2 Bg5 31.Kc3 Bf6 (31...Rb5 32.Rcf2 Ra5 33.Rf5+–) 32.Rf6! Rc2 (32...gf6 33.Rb2) 33.Kc2 gf6 34.Kb3 Kd7 35.Kc4 Kc6 36.a4 Kb6 (36...h6 37.g4 Kb6 38.Kd5+–) 37.Kd5 1–0. aspasio (1910) – aroces (1960), ICC, 1999.

6.d3 0–0 7.e4 Bg6 8.Be2 Bh5 9.0–0 Nc6=.

6.d3 0–0 7.e3 Na6 8.a3 c5 9.bc5 Nc5 10.Be2 Qb6=.

6.d3 a5 7.b5 (7.e4 ab4 8.ef5 bc3 9.Bc3 0–0 10.Qc2 Qd7+=; 7.a3 ab4 8.ab4 Ra1 9.Qa1 Na6 10.e4 Bg4+=) 7...Bg4 8.e3 Nbd7 9.Be2 0–0 10.0–0 Re8=.

6.d3 Nc6 7.a3 (7.Nd5 a6 8.e4 Bg4 9.Be2 0–0 10.0–0 Re8=; 7.b5 Na5 8.e4 Bg4 9.Be2 a6 10.0–0 Bf3=) 7...Bg4 8.e3 0–0 9.Be2 Re8 10.0–0 Qd7=.

6.d3 Be6 7.a3 (7.e3 0–0 8.Be2 Nbd7 9.0–0 h6 10.d4 e4=; 7.e4 0–0 8.d4 a5 9.b5 Nbd7 10.Bd3 ed4=) 7...Nc6 8.e3 0–0 9.Be2 a6 10.0–0 Qd7=.

6.d3 Bg4 7.e3 (7.h3 Bf3 8.gf3 0–0 9.a3 Nbd7 10.Rg1 a5=; 7.Qa4 Bd7 8.b5 Bg4 9.h3 Bf3 10.gf3 Nbd7=; 7.a3 a5 8.b5 Nbd7 9.e4 Nc5 10.Be2 0–0=; 7.b5 a6 8.d4 e4 9.Ng5 ab5 10.Qb3 bc4–/+; 7.Qd2 0–0 8.e3 Bf3 9.gf3 d5 10.b5 d4+=; 7.Qb3 a5 8.ba5 Nbd7 9.Nd5 Nd5 10.cd5 c6+=) 7...0–0 8.Be2 Nbd7 9.0–0 c6 10.a3 a5=.

6.d4 0–0 7.a3 e4 8.Nd2 c6 9.d5 Nbd7 10.e3 a5=.

6.d4 0–0 7.Qb3 Nbd7 8.Rd1 ed4 9.Nd4 Bg6 10.Nd5 a5.

6.d4 0–0 7.Qb3 e4 8.Nh4 Bd7 9.g3 Nc6 10.Nd5 a6.

6.d4 0–0 7.b5 Nbd7 8.e3 a6 9.a4 e4 10.Qc2 ab5+=.

6.d4 0–0 7.Rc1 e4 8.Nd2 Nc6 9.b5 Nd4 10.Nde4 Ne4+=.

6.d4 0–0 7.Qd2 e4 8.Nh4 Bc8 9.g3 d5 10.Nd5 Nd5+=.

6.d4 0–0 7.e3 e4 8.Qc2 c5 9.bc5 dc5 10.d5 Na6=.

6.d4 0–0 7.e4 Ne4 8.de5 de5 9.Qd8 Rd8 10.Nd5 Rd5+=.

6.d4 0–0 7.de5 de5 8.Qb3 a5 9.Rd1 Nbd7 10.Ne5 ab4=.

6.d4 Nbd7 7.de5 (7.e3 e4 8.Nh4 Bg4 9.Qc2 d5 10.h3 Be6=; 7.a3 a5 8.e3 e4 9.Nd2 0–0 10.b5 c6=; 7.Qa4 0–0 8.e3 Bg4 9.Be2 e4 10.Nd2 Be2=; 7.h3 0–0 8.e3 Re8 9.Be2 a5 10.b5 Ne4=; 7.b5 0–0 8.e3 a6 9.a4 e4 10.Qc2 ab5+=; 7.Qd2 0–0 8.e3 a5 9.b5 a4 10.a3 c6=) 7...Ne5 8.e3 a5 9.b5 0–0 10.Be2 Re8=.

6.d4 e4 7.Nd2 (7.Qc2 Nc6 8.Nh4 Bd7 9.Ne4 Nb4 10.Nf6 Bf6+=; 7.Ng5 h6 8.Nh3 d5 9.cd5 Bh3 10.gh3 Nd5+=) 7...0–0 8.a3 c5 9.e3 cd4 10.ed4 a5=.

6.Nd5 A) 6...0–0 7.Ne3 (7.Qa4 Nd5 8.cd5 Nd7 9.d3 e4 10.Nd2 Bf6+=; 7.e3 Nd5 8.cd5 c6 9.d4 cd5 10.Qb3 Be6–/+; 7.d4 Nd5 8.cd5 e4 9.Nd2 e3 10.fe3 Bg5–/+; 7.a3 Nd5 8.cd5 Nd7 9.d3 Bg4 10.e4 a5+=; 7.d3 Nd5 8.cd5 c6 9.e4 Bg4 10.h3 Bh5+=; 7.Ne7 Qe7 8.e3 a5 9.b5 a4 10.a3 Nbd7+=) 7...Be4 8.a3 a5 9.b5 Nbd7 10.d3 Bf3=; B) 6...a5 7.Ne3 (7.b5 Nd5 8.cd5 a4 9.d3 Bd7 10.Rb1 0–0+=; 7.ba5 Nd5 8.cd5 Ra5 9.Qb3 Ra7 10.d3 Nd7+=; 7.Qa4 Nbd7 8.Ne7 Qe7 9.c5 0–0 10.cd6 cd6+=; 7.Ne7 Qe7 8.b5 0–0 9.e3 a4 10.a3 Nbd7+=) 7...Be4 8.b5 Nbd7 9.d3 Bf3 10.gf3 d5+=; C) 6...Nd5 7.cd5 0–0 8.d3 c6 9.e4 Bg4 10.dc6 Nc6+=.

6.e3 A) 6...a5 7.b5 Qd7 8.Be2 0–0 9.0–0 c6 10.d4 e4=; B) 6...Nbd7 7.h3 (7.a3 c5 8.d4 ed4 9.ed4 0–0 10.Bd3 Bg4=; 7.d4 e4 8.Nh4 Bg4 9.Be2 Be2 10.Qe2 d5=; 7.d3 0–0 8.Be2 d5 9.cd5 Bb4 10.Qb3 a5=; 7.Rc1 0–0 8.Be2 c5 9.bc5 dc5 10.d3 Qb6=; 7.Qa4 a5 8.ba5 0–0 9.d4 ed4 10.Nd4 Bg6=; 7.Be2 c5 8.a3 e4 9.Nh4 Be6 10.g4 0–0=) 7...0–0 8.d4 Re8 9.a3 c6 10.Be2 Qc7=; C) 6...a6 7.a3 (7.Be2 Nc6 8.d4 e4 9.Nd2 d5 10.a3 dc4=; 7.d4 0–0 8.a3 a5 9.de5 de5 10.Qd8 Rd8=; 7.Qb3 0–0 8.Be2 Nc6 9.d4 ed4 10.ed4 d5=; 7.Qa4 Bd7 8.Qb3 a5 9.b5 0–0 10.d4 ed4=) 7...Nbd7 8.Be2 a5 9.d4 0–0 10.Nh4 Be4+=; D) 6...Nc6 7.b5 Nb4 8.d3 d5 9.cd5 Nbd5 10.Ne5 Bb4+=; E) 6...Qd7 7.d3 (7.d4 e4 8.Nd2 0–0 9.d5 Na6 10.a3 c6=; 7.a3 0–0 8.Be2 a5 9.b5 Rd8 10.0–0 c5=; 7.Be2 0–0 8.0–0 Re8 9.d4 e4 10.Nh4 Bg4=; 7.Rc1 0–0 8.a3 a5 9.b5 Re8 10.Be2 Bg4=; 7.Qb3 0–0 8.Be2 Nc6 9.b5 Nb8 10.0–0 Bg4=; 7.b5 0–0 8.Be2 a6 9.0–0 ab5 10.cb5 c5=) 7...0–0 8.Be2 a6 9.0–0 Nc6 10.a3 Rfe8=; F) 6...c6 7.Be2 (7.a3 a5 8.b5 0–0 9.Be2 cb5 10.Nb5 Nc6=; 7.d4 e4 8.Qc2 d5 9.a3 Nbd7 10.Ne5 0–0=; 7.d3 Nbd7 8.Be2 Qb6 9.a3 a5 10.b5 0–0=) 7...a5 8.b5 0–0 9.0–0 Nbd7 10.d3 Qb6=; G) 6...0–0 7.a3 (7.d3 Re8 8.Be2 d5 9.0–0 d4 10.ed4 ed4=; 7.Be2 e4 8.Nd4 Bg6 9.0–0 c5 10.Nc2 Nc6=; 7.Qb3 Nbd7 8.Be2 a5 9.a3 ab4 10.ab4 Ra1=; 7.d4 e4 8.Qc2 d5 9.a3 c6 10.Ne5 Nbd7=) 7...a5 8.b5 Re8 9.Be2 Nbd7 10.d4 Ne4=.

6.h3 h5 7.d3 (7.Nd5 Nd5 8.cd5 Nd7 9.d3 a5 10.e4 Bg6) 7...0–0 8.e4 Be6 (8...Bd7 9.Be2 Nc6 10.b5 Nd4) 9.d4 ed4 10.Nd4 Nc6.

5.Nf3 Bg4

6.a3 a5 7.b5 Nbd7 8.d4 0–0 9.e4 ed4=.

6.Qa4 Bd7 7.Qd1 0–0 8.e4 Nc6 9.b5 Nd4+=.

6.b5 Nbd7 7.d4 a6 8.e4 ed4 9.Qd4 ab5=.

6.d4 e4 7.Ng5 Bf5 8.g3 (8.Qa4 c6=+) 8...h6 9.Nh3 Nc6 (9...d5 10.cd5 Nd5 11.a3=+) 10.a3 0–0 (10...a6 11.Bg2=) 11.Bg2= Re8 12.0–0 Bf8 13.e3 Bg4 14.f3?? ef3–/+ 15.Bf3? Bh3–+ 16.Re1 Qd7 17.Qe2 Nd4! 18.Qd1 Nf3 19.Qf3 Rab8 20.Nb5 a6 21.Nd4 Bg4 22.Qg2 Ne4 23.h4 c5 24.Nc2 Bh3 25.Qh2 Qg4 26.bc5 dc5 27.a4 Bd6 0–1. wlittle (2330) – rrcn (2225), net–chess.com, 2004.

6.d4 Bf3 7.ef3 ed4 8.Ne4=+.

6.Nd5 0–0 7.Ne7 Qe7 8.Qb3 a5 9.b5 Nbd7+=.

6.e3 a5 7.b5 a4 8.Rb1 a3 9.Ba1 Nbd7=.

6.e4 Nc6 7.b5 Nd4 8.Be2 Ne2 9.Qe2 a6=.

6.h3 Bf3 7.gf3 0–0 8.Rg1 Nbd7 9.a3 a5=.

6.h3 Bf3 7.gf3 Nc6 8.a3 0–0 9.e3 a5 10.b5 Na7 11.Bd3 Re8 12.h4 Nh5 13.f4 ef4 14.Bh7 Kh7 15.Qh5 Kg8 16.Ne4 c6 17.Bg7 Kg7 18.Rg1 Kf8 19.Qh6# 1–0. pcmvr (2765) – gbsrao (2220), net–chess.com, 2014.

5.g3 0–0

6.a3 a5 7.Bg2 ab4 8.ab4 Ra1 9.Qa1 Be6 =+.

6.Nf3 Be6 7.e4 Nc6 8.a3 Re8 9.d4 Bg4 =+.

6.Bg2 Nc6 7.a3 (7.b5 Nd4 8.Nf3 a6 9.Nd4 ed4+=) 7...Re8 (7...Be6 8.Nd5 a6 9.Ne7 Qe7+=) 8.e3 (8.Nf3 Bg4 9.0–0 a5=) 8...Bf8 (8...Bf5 9.Qa4 Qd7 10.b5+=) 9.Nge2= Ne7 (9...e4=) 10.0–0 c6 11.d4 Qc7 12.Rc1 Ng6 13.Qc2 Qe7 14.Rfe1 e4 15.d5 cd5 16.Nd5 Nd5 17.cd5 f5 18.Qc7 Ne5 19.Be5 (19.Qe7 Be7 20.Be5 de5=) 19...Qe5= 20.Nc3 Re7 21.Qc4 Bd7 22.Qb3 Rc8 23.f4 (23.Bf1 g6=) 23...Qf6 (23...ef3!? 24.Bf3 g6+=) 24.Bf1 h5 25.Nb5 Rc1 26.Rc1 a6 27.Nd4 h4 28.Rc7 hg3 29.hg3 (worse is 29.Rb7 gh2 30.Kh2 g5+=) 29...g5 30.Ne6 (30.Rb7!? Ba4 31.Qa4 Rb7 32.Qa6+=) 30...Be6= 31.de6?? (31.Re7 Be7 32.de6 Qg6=) 31...gf4?? (better is 31...Rc7 32.e7 Qf7 33.Qf7 Kf7 34.ef8B Kf8 35.fg5 Rc3–+) 32.Re7= Be7 33.gf4 (worse is 33.ef4 Qd4 34.Kh1 Qf2+=) 33...Qh4 34.Qc2 Qg3 35.Qg2 Bh4?? (better is 35...Qg2 36.Kg2 d5–/+) 36.Qg3+/– Bg3 37.Bh3 Kf8 38.Bf5 d5 39.e7! Ke7 40.Bc8 b6 41.Ba6 Be1 42.Kf1 Bc3 43.Ke2 Bb2 44.a4 Bc3 45.Bb7 Kd6 46.a5 ˝–˝. De Visser,Arno – Drel, Hoogoven, 1996.

6.Bg2 Bf5?? 7.Bb7+– Nbd7 8.Ba8 Qa8 9.f3 e4 10.e3?? Ne5=+ 11.Nd5? Nd3–+ 12.Ke2 Nb2?? 13.Ne7+/– Kh8 14.Qb3 ef3 15.Nf3 Be4 16.Rhf1 Bd3 17.Kf2 Bf1 18.Rf1+/– Qe4 19.Qb2 Qe7 20.Kg2 Qe4 21.h3 Qc4= 22.Rc1?? Qe2–+ 23.Kg1 Qf3 24.Rc7 Qg3 25.Kf1 Ne4 26.d3 Qh3 27.Ke1 Qh1 (27...Qh1 28.Ke2 Qg2 29.Kd1 Qb2 30.de4 Qb4–+) 0–1. wlittle (2215) – felippe (2190), net–chess.com, 2004.

6.Bg2 c6

7.Qb3 Nbd7 8.Nf3 a5 9.b5 Nb6 10.d3 a4 =+.

7.b5 cb5 8.cb5 d5 9.d4 e4 10.Nh3 Nbd7 =+.

7.d3 d5 8.cd5 cd5 9.a3 –/+.

7.d3 Bf5 8.e4 Bg4 9.f3 Be6 10.a3 b6 11.Nge2 Nbd7 12.0–0 d5 13.cd5 cd5= 14.ed5 Nd5 15.Nd5 Bd5 16.d4 ed4 17.Nd4 Bc4?? 18.Re1?? Bf6+= 19.Rc1 Ba6? 20.Nc6+– (20.Nc6 Bb2 21.Nd8 Rad8 22.Rc7+–) 1–0. alaamattar (2265) – blinddog (2220), net–chess.com, 2010.

7.d4 Qb6 8.Qb3 ed4 9.Na4 Qd8 10.Bd4 Be6 =+.

7.e3 d5 8.cd5 cd5 9.a3 –/+.

7.e3 Bg4 8.Qc2 Na6 9.a3 Qd7 10.Nf3 Nc7 11.0–0 Bh3 12.Rfd1 Bg2 13.Kg2 Ne6 14.Ne4 Ne4=+ 15.Qe4 Rac8 16.d4 ed4 17.Nd4 Bf6 18.Qg4 g6 19.Qf3 Ng7?? 20.Qf6+– Rce8 21.Nf5! Qf5 22.Qg7 1–0. wlittle (2180) – bar (1900), net–chess.com, 2004.

7.Nf3 e4 8.Ng5 d5 9.cd5 cd5 10.e3 Bd7 11.Nd5 Nd5–+ 12.h4? Bf6 13.Ne4?? Bb2 14.Rb1 Nb4 15.Qb3 N8a6 16.Nd6 Be6 17.Nc4 Nd3 18.Ke2 Nac5 19.Qb4 Nb4 20.Rb2 Qd3 21.Kd1 Bc4 22.Bf1 Qe4 23.Bg2 Qg2 24.Re1 Qf3 25.Kc1 Nbd3 26.Kc2 Ne1 27.Kc3 Qf6 28.Kc4 Rac8 29.d4 Na4 30.Kb3 Qc6 31.Rb1 Qc2 (31...Qc2 32.Kb4 Qc4 33.Ka5 b6 34.Rb6 ab6#; 31...Qc4 32.Ka3 Nc2#) 0–1. OObuc – abed, playchess.de, 2001.

7.Nf3 Be6 8.d3 d5 9.cd5 cd5 10.Ne5 d4 =+.

7.f4 ef4 8.gf4 Ng4 9.Nh3 Bh4 10.Kf1 Be6 –/+.

5.g3 Be6

6.Qa4 c6 7.e4 Nbd7 8.f4 a5 9.ba5 Ra5=+.

6.Qb3 Nc6 7.Bg2 0–0 8.Nd5 a5 9.b5 a4=.

6.e3 0–0 7.Nf3 a5 8.b5 a4 9.a3 Nbd7=+.

6.e4 Nc6 7.a3 0–0 8.Nf3 Re8 9.d4 Bg4=+.

6.Bg2 Bc4 7.d3 Be6 8.Bb7+= Nbd7 9.Ba8 Qa8+=.

6.Bg2 c6 7.d3 d5 8.cd5 cd5 9.a3 0–0=+.

6.Bg2 Nbd7 7.d3 (7.Bb7 Rb8 8.Bd5 Rb4 9.Ba3 Rb6+=) 7...0–0 (7...c6 8.a3 d5 9.cd5 cd5+=) 8.Nf3 c6 9.0–0 (9.Ng5 Bf5+=) 9...d5 10.cd5 cd5 (worse is 10...Bd5 11.Nd5 Nd5 12.b5+= (worse is 12.Be5 Ne5 13.Ne5 Bf6 14.Bd5 Qd5+=)) 11.a3 d4 12.Ne4 Nd5 13.Rc1 Qb6 (13...a5 14.b5+=) 14.Qd2 (14.Ned2 Qa6=) 14...h6 (14...a5 15.ba5 Qa5 16.Qc2–/+) 15.Rc2 Rac8 16.Rfc1 Rc2 17.Qc2 f6 18.Nfd2 (18.Ned2 Qd8=) 18...Qd8 (18...f5 19.Nc5 Nc5 20.bc5+=) 19.Nb3= Qe8 (19...Re8 20.Nec5 Nc5 21.Nc5 Bc5 22.Qc5=) 20.Nec5 Nc5 21.Nc5 (worse is 21.bc5 Qb5+=) 21...Bc5 22.Qc5 Qf7 (22...b6 23.Qd6 Qe7 24.Qe7 Ne7 25.e3+=) 23.Qa7+/– Kh8 24.Rc5 Rd8 25.b5 Qf8 26.Bd5 (26.Rc1 Rd7+/–) 26...Rd5+= 27.Rc7 Rb5 28.Rb7 Rb7 29.Qb7 Qc5 30.Qa8 Kh7 31.Qa4 Bd5 32.f3 (32.f4 Bb7 33.Kf2 Qd5 34.fe5 Qg2 35.Ke1 Qg1 36.Kd2 Qe3 37.Kd1 Qg1 38.Kc2 Qh2 39.Qd4 Qe2 40.Kb3 fe5 41.Qe5 Qd3 42.Kb4 Qe4 43.Qe4 Be4+=) 32...Bc6 33.Qc4 Qb5 (33...Qa5!? 34.Kf2 Bd5+=) 34.Qb5+/– Bb5 35.f4 Kg6 36.fe5 fe5 37.Kf2 Kf6 38.h3 h5 ˝–˝. De Visser,Arno – Meijer, Noordkop, 1999.

4.Nc3 g6

5.a3 a5 6.Qa4 Bd7 7.b5 Bf5 8.d3 Nbd7 9.e4=.

5.a3 Nc6 6.b5 Nd4 7.e3 Nf5 8.Nf3 Bg7 9.Bd3=.

5.a3 Be6 6.e4 Bg7 7.Nf3 Nc6 8.Bd3 Nh5 9.Nd5=.

5.a3 Bf5 6.d3 a5 7.Nf3 Bg7 8.b5 0–0 9.e4=.

5.a3 Bg4 6.Nf3 Nc6 7.b5 Na5 8.Qa4 c6 9.h3=.

5.e4 Nc6 6.a3 a5 7.b5 Nd4 8.Nf3 Bg4 9.Be2=.

5.e4 Bh6 6.Nf3 Nc6 7.a3 0–0 8.Be2 a5 9.b5=.

5.Nf3 a5 6.Qa4 Bd7 7.b5 Bf5 8.d4 Nbd7 9.e3=.

5.Nf3 Nc6 6.b5 Nb8 7.e4 Nbd7 8.Be2 Nc5 9.0–0+=.

5.Nf3 Bd7 6.e4 Nc6 7.b5 Nd4 8.Nd4 ed4 9.Nb1=.

5.Nf3 Bf5 6.d3 Bg7 7.e4 Bg4 8.Be2 Nc6 9.b5=.

5.Nf3 Bg4 6.d4 ed4 7.Nd4 Bg7 8.g3 Na6 9.Bg2+=.

5.g3 Na6 6.a3 Bg7 7.Bg2 0–0 8.Nf3 e4 9.Nd4 =.

5.g3 c6 6.Nf3 Bg7 7.Bg2 Be6 8.d3 0–0 9.0–0 =.

5.g3 Nc6 6.b5 Nd4 7.Bg2 Bg7 8.Nf3 0–0 9.0–0 =.

5.g3 Be6 6.Bg2 c6 7.Qb3 d5 8.cd5 cd5 9.Qa4 =+.

5.g3 Bh6 6.Bg2 c6 7.Nf3 Be6 8.d4 Nbd7 9.d5 =.

5.h3 Bg7 6.Nf3 0–0 7.e4 Nbd7 8.d4 ed4–/+ 9.Nd4 Ne4?? 10.Ne4= Re8 11.Bd3 f5 12.0–0 fe4–+ 13.Bc2 c5 14.bc5 dc5 15.Re1 Nb6 16.Ne6? Be6 17.Bg7 Qd1 18.Rad1 Kg7 19.Be4 Rab8 20.Bd3 Bc4 21.Re8 Re8 22.Bc4 Nc4 0–1. gtate (2055) – arruda (2035), net–chess.com, 2006.

5.a3 Bg7

6.e4 Nc6 7.Bd3 Bg4 8.Nge2 0–0 9.0–0=.

6.Nf3 0–0 7.d3 (7.e4 a5=) 7...Nbd7 (7...a5 8.e4+=) 8.e3 Re8 9.Be2 a5 10.b5 Nc5 11.d4 ed4 12.Nd4 a4 13.0–0 Nfe4 14.Ne4 Ne4 15.Rb1 Bd7 16.Bf3 Qe7 17.Ne2 Bb2 18.Rb2 Nc5 19.Nc3 Be6 20.Rb4 a4 seems the pivot of the position 20...Ra5 21.Nd5 Bd5 22.cd5 b6 23.Qc2 Qd7 24.Be2 Qe7 25.Rc1 Qe5 26.Bf3 Qe7 27.h3 Qd7 28.Bg4 Qe7 29.Be2 Qd7 30.Rh4 Qe7 31.Rg4 Qd7 ˝–˝. Van Esbroeck – Buch, email 4AMM–03, 1997.

5.e3

5.e3 (--> 4.e3 g6 5.Nc3).

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

5.e3 Bg7 6.Nf3 0–0 7.d4 Nbd7 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).

5.e4 Bg7

6.Nge2 0–0–/+ 7.g3 Nbd7 (7...Be6!?–/+) 8.Bg2+= Re8 9.0–0 Nf8 10.d3 h5 (10...Ne6 11.Qd2+=) 11.f4 ef4 12.gf4 Ng4 13.Rf3 (13.Qd2 a5 14.b5 a4+=) 13...f5 (13...c5!? 14.bc5 dc5+=) 14.Qd2 c6 15.h3 Nf6 16.Re3 a5 17.b5 Bd7 18.Kh1 (18.bc6 Bc6 19.Nd4+/–) 18...N6h7? (better is 18...cb5!? 19.Nb5 Bb5 20.cb5 Nd5+=) 19.ef5+/– Qh4? (19...gf5 20.Rg1 Re3 21.Qe3+–) 20.bc6?? (20.fg6!? Ng6 21.Rg3 Nhf8+–) 20...bc6 (better is 20...Re3!? 21.Qe3 bc6+/–) 21.fg6+– Ng6 22.Rg3 Ne7 23.Rg1?? (better is 23.Rg7 Kg7 24.Ne4 Kg6 25.Rg1+–) 23...Nf5+/– 24.Rg6 Re7? (better is 24...Nf8 25.Rg7 Ng7+–) 25.Ne4+– Kh8 26.Bf1 (better is 26.N2g3 Ng3 27.Rg3+–) 26...Nf8?? (26...d5 27.Nd6 Nf6 28.Nf5 Bf5 29.Rf6 Bf6+–) 27.Bg7 (better is 27.Rg7 Rg7 28.Rg7 Ng7+–) 27...Rg7 28.Rg7 Ng7 29.f5 Nh7 30.f6 Bh3 (30...Rg8 31.Nf4 Bf5+–) 31.fg7 (better is 31.Rg7 Bf5 32.Kg1 Be4 33.Qh6 Qh1 34.Kf2 Qf3 35.Ke1 Qf6 36.Rh7 Bh7 37.Qf6 Kg8 38.Qe6 Kf8 39.Qd6 Kg8 40.Qg3 Kf8 41.Qf4 Kg8 42.Bg2+–) 31...Kg8 32.Qf4 Bg4 33.Kg2 Kg7 (33...d5 34.cd5 cd5 35.Nf2+–) 34.Qd6 Rf8 (34...Rg8 35.Nf4 (35.Qc6?! Be2 36.Qd6 Kf7 37.Ng3 Bg4+=) 35...Ng5 36.Ng5 Qg5 37.Kf2+–) 35.Qg3 (better is 35.Nf4!? Rg8+–) 35...Qg3 36.N2g3 (36.Kg3?! Rf1 37.Rf1 Be2+–; 36.N4g3?! Ng5 37.Kh1 h4+–) 36...h4 37.Be2 Be2 (37...Bc8 38.Nh5 Kh6+–) 38.Ne2 Rb8 (38...Kh6 39.Kh3 Rf3 40.Kh4+–) 39.Kh3 Kf7 40.Ng5 (better is 40.Nd4 Rd8 41.Rg7 Kg7 42.Ne6 Kg6 43.Nd8 Kf5+–) 40...Ng5 41.Rg5 Rb2 42.Re5 (better is 42.Nc1 Rc2 43.Rg1 a4+–) 42...Ra2 (42...Kf6 43.Re3 Ra2 44.Kh4+–) 43.Nd4 1–0. Yearwood,R (2080) – Lane,T (2155), Victoria CAN, 2012.

6.Nf3 Nc6 7.b5 Nd4 8.Be2 h6 9.0–0=.

5.Nf3 Bg7

6.a3 Nbd7 7.e4 Nb6 8.d4 ed4 9.Nd4=.

6.d3 0–0 7.g3 (7.e4 Nc6=) 7...Nc6 8.b5 Nd4 9.Bg2 a6 10.a4 c6 11.0–0 Nf3 12.Bf3 Bg4 13.Bg4 Ng4 14.Qb3 Qd7 15.Rab1 (15.Ne4 Qe6=) 15...ab5+= 16.ab5 f5 17.Ra1 Qf7 Black plans f4 18.Ra8 Ra8 19.h3 Nf6 20.Ra1 Ra1 21.Ba1 f4 22.g4 h5 23.f3 (23.gh5 gh5 24.Qa4 cb5 25.Qa8 Bf8 26.cb5 d5+=) 23...Kh7 24.Bb2 hg4 25.hg4 Qd7 26.Kf1 d5 27.cd5 cd5 28.g5 d4 29.gf6 dc3 30.Qc3 Bf6 31.Qc5 Qh3 (31...Qg7 32.Qd6+=) 32.Ke1+= Qe6 33.Kd2 Kh6 34.Kc1 g5 35.Qc7 Qd5 36.Qc4 Qc4 37.dc4 Kg6 38.b6 (38.Kc2 Kf5=) 38...Kf5+= 39.c5 Bd8 (39...Be7 40.Ba3+=) 40.Kc2= e4 41.Kd1 ef3 42.ef3 Ke6 43.c6 bc6 44.Bd4 (44.b7 Bc7+=) 44...Bb6 (44...Kf5 45.b7 Bc7 46.Ke2=) 45.Bb6= ˝–˝. Woelfelschneider,Peter – Ketelhoehn, 2009.

6.d4 ed4 7.Nd4 0–0 =.

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

6.e4 0–0 7.a3 A) 7...a5 8.b5 (8.Be2 ab4 9.ab4 Ra1 10.Ba1 Nc6 11.b5 Nd4 12.0–0 Be6 13.d3=) 8...Nbd7 9.Be2 Nb6 10.0–0 Qe7 11.d3 Ng4 12.h3 Nh6 13.d4+=; B) 7...Be6 8.Be2 (8.d4 ed4 9.Nd4 a5 10.Bd3 ab4 11.ab4 Ra1 12.Qa1 Ng4 13.Nd5=; 8.Ng5 Bd7 9.Be2 h6 10.Nf3 Nc6 11.0–0 Nd4 12.d3 Nf3 13.Bf3=; 8.Bd3 a5 9.0–0 ab4 10.ab4 Ra1 11.Qa1 Nh5 12.Qa3 Nf4 13.Ne2=) 8...Nc6 9.0–0 a5 10.b5 Nd4 11.d3 Ne2 12.Qe2 Ng4 13.h3=; C) 7...Nc6 8.Be2 (8.Bd3 a5 9.b5 Ne7 10.0–0 Nh5 11.Bc2 Be6 12.Bb3 Nf4 13.d4=; 8.Qc2 a5 9.b5 Ne7 10.Be2 Nh5 11.0–0 Nf4 12.Rfd1 Bg4 13.Re1=) 8...a5 9.b5 Nd4 10.0–0 Be6 11.d3 Ne2 12.Qe2 Ng4 13.h3=.

6.e4 0–0 7.Be2 Nc6 (7...a5 8.b5 (8.a3 ab4 9.ab4 Ra1 10.Ba1 Nc6 11.b5 Nd4 12.0–0 Be6 13.d3=; 8.ba5 Nc6 9.Qc2 Be6 10.Nd5 Ra5 11.Bc3 Ra7 12.0–0 Qd7 13.Rfd1=) 8...Nbd7 9.0–0 Nc5 10.Qc2 Qe7 11.Rab1 a4 12.Ba3 Nfd7 13.Nd5=; 7...Be6 8.d4 (8.a3 Nc6 9.Ng5 a5 10.b5 Nd4 11.0–0 Nd7 12.Ne6 fe6 13.Rb1=; 8.0–0 Nc6 9.Ng5 Nb4 10.Qb3 c5 11.a3 Nc6 12.Qb7 Nd4 13.Ne6+=; 8.b5 a6 9.Ng5 ab5 10.Ne6 fe6 11.cb5 d5 12.Qc2 c5 13.0–0=) 8...ed4 9.Nd4 a5 10.b5 Nbd7 11.Qc2 Nc5 12.0–0 a4 13.a3=) 8.b5 (8.a3 a5= 9.b5 Nd4 10.0–0 Be6 11.d3 Nf3 12.Bf3 Nd7 13.Bc1=; 8.Ba3 Nd4 9.0–0 Be6 10.d3 Ne2 11.Qe2 a5 12.b5 Bg4 13.Bc1=) 8...Nd4 9.d3 (9.0–0 a6= 10.a4 ab5 11.ab5 Ra1 12.Ba1 Be6 13.d3=) 9...Ne2 (9...Nf3 10.Bf3 a6 11.a4= (11.0–0 ab5 12.cb5 Be6 13.Re1=) 11...ab5 12.ab5 Ra1 13.Ba1=) 10.Ne2 (10.Qe2 a6= (10...Nh5 11.Bc1 f5 12.Bg5 Nf6 13.0–0=) 11.0–0 ab5 12.cb5 Be6 13.d4=) 10...Nd7 (10...a6 11.0–0+= Bg4 12.Nc3 ab5 13.cb5+=; 10...Bg4 11.h3 Bf3 12.gf3 Re8 13.Qd2+=) 11.Qc2 (11.0–0 f5 12.ef5 gf5 13.d4=) 11...Nc5 12.d4 (12.0–0 f5= (12...Bg4 13.Ne1=) 13.Ba3+=) 12...ed4 13.Bd4 Bd4 14.Nfd4 Qh4 15.Ng3 (15.0–0 Qe4 16.Qe4 Ne4+=) 15...Re8 (15...f5 16.0–0 fe4 17.Nb3+=) 16.0–0 (16.f3 f5 17.0–0 a6=) 16...Ne4+= 17.Rfe1 Nf6 18.Nf3 (18.Re8 Ne8 19.Re1 Ng7+=) 18...Qh6 (18...Qf4 19.Re8 Ne8 20.Rd1+=) 19.Re8= Ne8 20.Qe4 Qf8 21.Re1 Ng7 22.Nd4 (22.Qd5 a6=) 22...Ne6 23.f4 (23.Ne6 fe6 (worse is 23...Be6 24.Qb7 Bc4 25.Ne4+=) 24.Qh4 Kg7+=) 23...Nc5 24.Qd5 (24.Qf3 a6+=) 24...Be6–/+ 25.Ne6 fe6 26.Qd4 Qg7 27.Qd2 Rf8–/+ 28.Ne4 Ne4 29.Re4 Qa1 30.Re1+= Qf6 31.g3 b6 32.Kg2 Qf5 33.a4 Rf6 34.h4 h6 35.Re2 Kf7 36.a5 Qc5 37.ab6 ab6 38.Re4 Qa3 39.Qe2 Qc1 40.Re3 Qa1 41.Re4 Qa8 42.Kh2 h5 43.Re3 Qa1 44.Re4 Qb1 45.Kg2 Qb4 46.Kh2 Qc5 47.Re3 Qf5 48.Ra3 Qc5 49.Re3 e5 50.fe5 de5 51.Kg2 Rf5 52.Rd3 Ke6 53.Rd2 Kf6 54.Rd5 Qa3 55.Rd7= Qc5 56.Rd2 ˝–˝. Zaitsev,Yuri – Ajrapetjan,Yuri (2165), ch–UKR, Alushta UKR, 2002.

6.e4 Nc6 A) 7.Qa4 A1) 7...Bd7 8.Be2 (8.Bd3 Nd4 9.Qd1 a5 10.b5 Bg4 11.Be2 0–0 12.Nd4 ed4 13.Bg4=; 8.a3 Nd4 9.Qd1 Be6 10.Bd3 Nf3 11.Qf3 Bh6 12.Be2 Nh5 13.Rd1=; 8.Qb3 0–0 9.Bd3 a5 10.b5 Ne7 11.Be2 a4 12.Qc2 a3 13.Bc1=) 8...Nd4 9.Qd1 Nf3 10.Bf3 a5 11.b5 Be6 12.d3 h6 13.0–0=; A2) 7...0–0 8.Bd3 (8.d3 Bd7 9.b5 Nd4 10.Nd4 ed4 11.Ne2 c5 12.bc6 bc6 13.c5+=; 8.Be2 Nd4 9.Bd1 Bd7 10.Qa5 Bh6 11.d3 Nc6 12.Qa4 Nh5 13.Nd5+=; 8.Rc1 Nd4 9.Qd1 a5 10.b5 Be6 11.Bd3 Bg4 12.Be2 Ne2 13.Qe2+=) 8...Bg4 9.b5 Ne7 10.Be2 Nd7 11.h3 Nc5 12.Qc2 Bf3 13.Bf3=; B) 7.a3 B1) 7...Be6 8.Bd3 (8.Be2 a5 9.b5 Nd4 10.Ng5 0–0 11.0–0 Nd7 12.Ne6 fe6 13.Rb1=; 8.Qc2 0–0 9.Be2 a6 10.Nd5 Nd7 11.0–0 f5 12.Rae1 a5 13.b5=; 8.d3 Bg4 9.Be2 0–0 10.0–0 Re8 11.Ng5 Bd7 12.f4 ef4 13.Qd2=) 8...Qd7 9.0–0 0–0 10.b5 Ne7 11.Be2 a6 12.d4 ed4 13.Nd4=; B2) 7...a5 8.ba5 (8.b5 Nd4 9.Be2 Be6 10.Ng5 0–0 11.0–0 Nd7 12.Ne6 fe6 13.Rb1=; 8.Qb1 0–0 9.b5 Ne7 10.Be2 Nh5 11.0–0 Nf4 12.Re1 Bg4 13.Bd1=) 8...0–0 9.Be2 Be6 10.0–0 Na5 11.d3 Nc6 12.Qb3 Ra7 13.Bc1=; B3) 7...Nd4 8.Be2 (8.Nd4 ed4 9.Nb5 0–0 10.Bd4 Ne4 11.Bg7 Kg7 12.Bd3 f5 13.0–0=; 8.Bd3 Bg4 9.Be2 Ne2 10.Qe2 Nh5 11.0–0 Nf4 12.Qd1 Qf6 13.Nb5+=) 8...Ne2 9.Qe2 Nh5 10.0–0 Nf4 11.Qd1 0–0 12.d3 Bg4 13.h3=.

6.g3 0–0 7.Bg2 a5.

6.g3 0–0 7.Bg2 a6 8.0–0 c6 9.d3 Re8 10.a3 Nbd7 11.Qc2 Nf8 12.Rac1 h5 (12...Ne6 13.Rfd1=) 13.Qd2 (13.Rfd1 b6+=) 13...Bg4 (13...Ne6 14.Rfd1+=) 14.h3 Bf5 (14...Bf3 15.Bf3 Ne6 16.Bg2+=) 15.e4 Bd7 16.a4 (16.c5 Qc7+=) 16...b5 (16...Ne6 17.a5=) 17.cb5 cb5 18.ab5 ab5 19.d4 Qb8 (19...Rc8 20.Qd3+=) 20.Rfd1+/– Qb7 21.de5 (21.Qe3 Bc6 22.d5 Bd7+/–) 21...de5 22.Nd5 Nd5 23.ed5 Ra2 24.Ng5 (24.Ra1 Ra1 25.Ba1 f6+=) 24...e4 (24...Bh6 25.f4 ef4 26.Ne4 Qb6 27.Rc5–+) 25.Rc2+= Rc8 26.Rdc1 Bh6 27.Rc8 Bc8 28.Qc3 Rb2 29.Ne4 Bg7 30.Qc8 Qc8 31.Rc8 Rb1 (31...Rb4 32.Nc5 Bd4 33.Nd7 Rb1 34.Kh2+=) 32.Kh2+/– Rb4 33.Rb8 Bd4 (33...h4 34.d6 Rd4 35.Rb5 hg3 36.fg3+=) 34.d6+/– Kg7 35.h4 Nd7 (better is 35...Bb2!?+/–) 36.Rb7+– Nc5 37.Nc5 Bc5 38.d7 Be7 39.Bd5 Bd8 (39...Rb2 40.Kg2+–) 40.Rb8 Rd4 41.Bc6 (41.Rd8?! Rd5 42.Kg2 Kf6=) 41...Be7 42.Bb5 f5 43.Re8 Kf6 44.Kg2 Rd5 45.Rb8 Rd6 46.f4 Rd2 47.Kf3 Rd4 48.Ke3 Rd6 49.Ke2 Kf7 50.Rc8 Kf6 51.Ke3 Kf7 52.Re8 Kf6 53.Ra8 Kf7 ˝–˝. Buch – Miraglia, email 4AMM–03, 1997.

6.g3 0–0 7.Bg2 c6 8.0–0 Qc7 9.d3 Bg4 10.Rb1 Nbd7 11.h3 Bf3 12.Bf3 Ne8 13.b5 f5? (better is 13...Nef6+/–) 14.bc6+– bc6 15.Nd5! Qd8 (15...cd5 16.Bd5 Double attack) 16.Nb4 (16.Nb4 Nb8 17.Nc6 (17.Bc6?! Nc6 18.Nc6 Qd7+/–) 17...Nc6 18.Bd5 Kh8 19.Bc6+–) 1–0. Aspasio – marcosaa, CHESS WORLD Microsoft, 2012.

6.g3 0–0 7.Bg2 c6 8.0–0 Be6 9.d3 Nbd7 10.Ng5 Bf5 11.Qd2 Nb6 12.b5 Rc8 13.Rae1 h6 14.Nf3 e4 (better is 14...Qc7) 15.Nd4 d5 16.bc6 bc6 17.cd5 cd5 18.Ncb5 Qd7 19.Ba3 Rfd8 20.Nd6 Ne8? (better is 20...Rb8) 21.N4f5 gf5 22.Nc8 Rc8 23.Rc1 Nd6 24.Bd6 Qd6 25.de4 Nc4 26.Qd5 Qd5 27.ed5 1–0. Wall,Bill – Guest1793031, playchess.com, 2012.

6.g3 b6 7.Bg2 Bb7 8.0–0 (8.d4 ed4 9.Qd4 0–0=) 8...0–0 9.a3 Re8 10.d3 Nbd7 (10...a5 11.b5=) 11.Qb3 (11.e4 a6=) 11...h6 (11...Qe7 12.e4=) 12.Rfd1 Qe7 (12...c6!?=) 13.Ne5+/– Bg2 14.Nd7 Bh3 (14...Bb7 15.Nf6 Qf6 16.e4+=) 15.Nf6+/– Qf6 16.Rd2 Qf5 (16...c6 17.b5 cb5 18.Qb5+/–) 17.Nd5 Rac8 18.Bg7 Kg7 19.f4 c6 (better is 19...Qe6!? 20.b5 f6+/–) 20.e4+– Qe6 21.Qb2 f6 22.f5! Qe5 (22...gf5 23.Nf4 Combination) 23.Nf4 Bg4 24.fg6 Qb2 (24...a6 25.Rf1+–) 25.Rb2 Bd7 26.g4! Re5 (26...Bg4 27.Rg2 Decoy) 27.Rg2 (27.h3 Be8 28.Nh5 Kg6+–) 27...Be8 (27...b5 28.Rc1+–) 28.Nh5 Kg6 29.Rf1 Re6 (29...a5+–) 30.Nf4 (30.Nf4 Kf7 31.Ne6 Ke6 32.Rgf2+–) 1–0. pcmvr (2830) – agostinhoarruda (2605), net–chess.com, 2014.

6.g3 Nc6 7.a3 0–0 (7...Be6 8.d3=) 8.Bg2 e4 (8...Be6 9.d3=) 9.Ng5 Ng4 (9...Nd7 10.b5 Na5 11.Qa4= (11.Nge4? Nc4 12.Qb3 Nb2–+)) 10.Nge4+= f5 11.f3 Nge5 (11...fe4?! 12.fg4 e3 13.de3 Bg4 14.b5=) 12.Nf2 Nc4 13.Qb3 (13.f4 Be6 14.Rb1 Bc3 15.Bc3 Na3+=) 13...d5 14.f4 (14.Rc1 f4–/+) 14...Nd4–+ 15.Bd5 (15.Qa2 Nc2 16.Kd1 Na1 17.Bd5 Qd5 18.Nd5 Nb2 19.Ke1 Be6–+) 15...Qd5! 16.Nd5 Nb3 Discovered attack 17.Bg7 Kg7 18.Ra2 Rf7 19.d3 Nb6 20.Ne3 (20.Nc3 Be6–+) 20...Re7 (20...Re7 21.Rb2 Nd4–+) 0–1. Pietrzak,Wojciech – Zednik,Martin, Orang–Utan Invitational, 2002.

6.g3 Be6 7.Qb3 =+.

5.g3 Bg7

6.Nf3 0–0 7.d3 (7.Bg2 e4 8.Nd4 c5 9.Nc2=) 7...b6 (7...Nc6 8.a3 (8.b5 Nd4 9.Bg2=) 8...Bf5 9.Bg2=) 8.Qd2 (8.Bg2 Bb7 9.0–0=) 8...a5 (8...Bb7 9.Bg2=) 9.b5 Bb7 10.Bg2 Nbd7 11.Rd1 a4 12.Ba3 (12.0–0 Nc5=) 12...Nc5 13.Bc5 bc5 14.Nh4 Bg2 15.Ng2 Qd7 16.0–0 Qh3 17.f3 Bh6 18.e3 Rfe8 19.Nh4 (19.a3 Bg7+=) 19...Bg5= 20.Ng2 a3 (20...Bh6 21.a3+=) 21.Ra1 Ra7 22.Rab1 Rb8 23.Qc1 Qe6 24.Rb3 Rba8 25.Nb1 d5 26.cd5 Nd5 27.Qc5 (27.Ra3?! Ra3 28.Na3 Nb4=) 27...Be7 28.Qc4 Ra4 29.Qc2 R4a7 (29...Qb6 30.Nc3 Ne3 31.Na4 Nc2 32.Nb6 cb6 33.f4+=) 30.Nd2 Nb4 31.Qb1 Nd5 32.Nc4 f5 33.Kh1 Nb6 34.Qc2 Nc4 35.dc4 (worse is 35.Qc4 Qc4 36.dc4 Rd8=) 35...Ra4 36.Rc1 Bc5 37.e4 Rd8 38.Rd3 Rd3 39.Qd3 Bd4 40.Nf4! Qf7 (40...ef4 41.Qd2 (41.Qd4)) 41.ef5 gf5 42.Nd5 1–0. Cetwinski,Olgierd (2210) – Mika,Kazimierz (2125), corr POL–ch42/43 sf3, 1998.

6.Nf3 Be6 7.Qb3 a5 8.Ng5 Bc8 9.b5 =+.

6.Bg2 Nc6 7.b5 Nd4 8.Nf3 Qe7 9.Nd4 =.

6.Bg2 0–0

7.a3 c6 8.d3 d5 9.Nf3 Re8 10.0–0 d4 11.Na4 A) 11...Bg4 12.e3 (12.h3 Bf3 13.Bf3 Nbd7 14.e3 e4 15.de4 de3=; 12.Nc5 b6 13.Nb3 a5 14.ba5 ba5 15.Rb1 a4=; 12.Qc2 a5 13.h3 Bf3 14.Bf3 Qc7 15.Qd2 ab4=) 12...Na6 13.h3 Bf3 14.Qf3 de3 15.Qe3 Qd7+=; B) 11...Qd6 12.e3 (12.Qc2 Bf5 13.Nc5 b6 14.Nb3 Nbd7 15.Nh4 Be6=; 12.Qd2 Nbd7 13.Rae1 a5 14.ba5 Ra6 15.e3 de3=) 12...Bg4 13.Qc2 Nfd7 14.Rae1 Na6 15.ed4 Bf3+=; C) 11...Na6 12.e3 (12.Rb1 Bf5 13.Nh4 Bd7 14.Bc1 Qe7 15.Nf3 b5=) 12...de3 13.fe3 Ng4 14.Re1 Bf5 15.e4 Be6=; D) 11...a5 12.Qb3 (12.b5 cb5 13.cb5 Bd7 14.Qb3 Be6 15.Qd1 Nbd7=; 12.Qd2 Nbd7 13.b5 c5 14.e3 Qe7 15.Rae1 Qd6=; 12.h3 ab4 13.ab4 Nbd7 14.e3 de3 15.fe3 Qe7=; 12.e3 de3 13.fe3 Ng4 14.Qe2 Bh6 15.e4 Nd7=; 12.Qc2 Bg4 13.h3 Bf3 14.Bf3 Qc7 15.Qd2 Nbd7=) 12...Bf5 13.b5 Nbd7 14.Rfb1 Rb8 15.h3 cb5=; E) 11...Qe7 12.e3 (12.Nc5 a5 13.Qd2 a4 14.e3 b6 15.Ne4 Ne4=; 12.h3 Nbd7 13.Qc2 a6 14.Bc1 a5 15.b5 cb5=; 12.Rb1 Nbd7 13.e3 de3 14.fe3 Bh6 15.e4 a5=) 12...de3 13.fe3 e4 14.de4 Ne4 15.Bg7 Kg7=; F) 11...Bf5 12.h3 (12.Nc5 b6 13.Nb3 Qd6 14.Qc2 a5 15.ba5 ba5=; 12.Nh4 Bg4 13.h3 Bc8 14.e3 g5 15.Nf3 g4=; 12.Qd2 Nbd7 13.h3 h6 14.g4 Be6 15.g5 hg5=; 12.Rb1 Nbd7 13.h3 b5 14.cb5 cb5 15.Nc5 Nc5=; 12.Bc1 Na6 13.Nh4 Bc8 14.Rb1 Qd6 15.Nf3 Bf5=) 12...Nbd7 13.g4 Be6 14.Ng5 Nf8 15.Nc5 Bc8=.

7.a3 c6 8.d3 d5 9.Nf3 Re8 10.0–0 d4 11.Nb1 a5 (11...Qb6 12.c5 (12.Nbd2 c5 13.Rb1 cb4 14.ab4 Na6 15.Ba3 Qc7=; 12.Qd2 c5 13.e3 Nbd7 14.Ne1 Bh6 15.Nc2 e4=) 12...Qc7 13.e3 de3 14.fe3 Nd5 15.Qd2 Bh6=; 11...Bf5 12.Qd2 (12.Nbd2 a5 13.b5 Qb6 14.Rb1 c5 15.Ng5 Nbd7=; 12.Qb3 Na6 13.Nbd2 h6 14.c5 b5 15.a4 Be6=; 12.h3 Qb6 13.g4 Bc8 14.Qd2 Nfd7 15.c5 Qd8=; 12.a4 Qd6 13.c5 Qe7 14.Qd2 a5 15.Na3 ab4+=) 12...Qd6 13.c5 Qc7 14.e3 Bh6 15.Qe2 de3=; 11...Bg4 12.Nbd2 (12.e3 de3 13.fe3 e4 14.de4 Qd1 15.Rd1 Ne4+=; 12.h3 Bf3 13.Bf3 a5 14.Nd2 ab4 15.ab4 Ra1=; 12.Qc2 a5 13.Nbd2 ab4 14.ab4 Na6 15.b5 cb5=; 12.Qd2 Qd7 13.Re1 Qf5 14.Nh4 Qh5 15.h3 Be6=; 12.Qb3 Nbd7 13.h3 Bf3 14.Bf3 Bh6 15.a4 a5=) 12...a5 13.h3 Bd7 14.e3 ab4 15.ed4 ed4=; 11...Nbd7 12.e3 (12.Qc2 a5 13.Nbd2 Qe7 14.b5 cb5 15.cb5 a4=; 12.h3 a5 13.Qd2 c5 14.Rd1 Qe7 15.Re1 e4+=; 12.Qd2 a5 13.h3 c5 14.Re1 Qb6 15.bc5 Nc5+=; 12.Nbd2 a5 13.Qb3 c5 14.Rfb1 Qe7 15.ba5 Ra5=; 12.Bc1 a5 13.b5 Nc5 14.Nbd2 e4 15.de4 Nfe4+=) 12...de3 13.fe3 Ng4 14.Qe2 Bh6 15.Bc1 e4=) 12.Nbd2 (12.e3 de3 13.fe3 Ng4 14.Qe2 e4 15.de4 Bb2–/+) 12...ab4 13.ab4 Ra1 14.Qa1 Na6 15.Ba3 (15.b5 Nc7=) 15...Nc7 (15...b5=) 16.Nb3 Ng4 17.h3 Nh6 18.Nfd2 f5 19.Qa2 Nf7 20.Qc2 h5 21.Nf3 Bf6 22.Bc1 Ne6 23.Bd2 Kg7 24.e3 de3 25.Be3 (25.fe3 Qd7+=) 25...h4 26.Nc5 hg3 27.Ne6 Be6 28.fg3 Qd7 29.h4 Rd8 30.Ne1 f4 (30...Nd6!?=) 31.gf4+= Bf5 32.Qf2 Rh8 33.Nf3 (better is 33.fe5!? Ne5 34.Bg5 Bg5 35.hg5+=) 33...Qd3 34.fe5 Ne5 35.Ne5 Be5 36.Re1 (better is 36.c5!?–/+) 36...Qc4–+ 37.Bc5 Bf6 38.Re7 (38.Qg3 Rh4 39.Qd6 Qf7–+) 38...Be7 39.Be7 Re8 40.Qb2 (40.Bc5 Kh7–+) 40...Kg8 41.Qf6 (41.Bg5 Re2 42.Qa3 Kh7–+) 41...Qf7 (better is 41...Qc1 42.Kh2 Qf4 43.Kh1 Qg3–+) 42.Qf7 Kf7 43.Bg5 Re2 44.b5 cb5 45.Bb7 b4 46.Ba6 (46.Kf1 Rc2 47.Bd5 Be6–+) 46...Rc2 47.Bb7 b3 48.Bd5 Be6 49.Be4 (49.Bb3 Bb3 50.Kf1 Bd5–+) 49...Ra2 0–1. De Visser,Arno – Perez Garcia,Hebert (2205), Haarlem AKN op, 2000.

7.a3 c6 8.d3 d5 9.Nf3 Re8 10.0–0 d4 11.Ne4 A) 11...a5 12.Nf6 (12.e3 Ne4 13.de4 de3 14.fe3 Qd1 15.Rfd1 Be6+=; 12.Ned2 ab4 13.ab4 Ra1 14.Qa1 Na6 15.b5 Nc7=) 12...Bf6 13.Qd2 Bf5 14.h3 Bg7 15.g4 Bd7=; B) 11...Bg4 12.Nc5 (12.Nf6 Qf6 13.h3 Bf3 14.Bf3 a5 15.Bg2 Na6=; 12.Nfd2 Ne4 13.Ne4 f5 14.f3 Bh5 15.Nf2 Qd7=; 12.Bc1 Ne4 13.de4 h6 14.Qd3 Nd7 15.e3 a5=; 12.Nfg5 Ne4 13.Ne4 f5 14.Nc5 Qe7 15.h3 Bh5=; 12.e3 Ne4 13.de4 f5 14.Qb3 fe4 15.Nd2 Be6=) 12...Qb6 13.h3 Bf3 14.Bf3 Nbd7 15.Nd7 Nd7=; C) 11...Na6 12.Ned2 (12.e3 Ne4 13.de4 c5 14.ed4 ed4 15.Re1 Bg4=; 12.Bc1 h6 13.Ned2 Nc7 14.Nb3 Qd6 15.c5 Qd7=; 12.Nf6 Bf6 13.e3 Bf5 14.Re1 Qd7 15.Qd2 c5=) 12...Nc7 13.c5 Nb5 14.Qe1 Nd5 15.Nc4 e4=; D) 11...Bf5 12.Nfd2 (12.Nfg5 a5 13.b5 cb5 14.cb5 Ne4 15.Ne4 a4=; 12.Nf6 Qf6 13.e3 Qd6 14.Nh4 Be6 15.ed4 ed4=; 12.Qc2 a5 13.Nfd2 Na6 14.ba5 Ne4 15.de4 Be6=; 12.Nc5 b6 13.Nb3 Qd6 14.Qc2 Nbd7 15.Nh4 Be6=) 12...a5 13.c5 Ne4 14.Ne4 Be4 15.Be4 ab4=; E) 11...b6 12.Nf6 (12.e3 Ne4 13.de4 de3 14.Qd8 Rd8 15.Rad1 Rd7=) 12...Bf6 13.e3 Bf5 14.Re1 de3 15.Re3 Nd7+=; F) 11...Ne4 12.de4 Be6 13.Qd3 Nd7 14.Bc1 h6 15.Rd1 Nb6=.

7.d3 Na6 8.a3 c5 9.bc5 Nc5 10.Nf3 Qb6 11.Rb1 =.

7.d3 Nc6 8.b5 Ne7 (8...Nd4 9.e3 Ne6 10.Nf3 a6 11.0–0=) 9.e4 (9.Nf3 Re8 10.0–0 a6 11.a4=) 9...Bd7 (9...a6 10.Nf3 Be6 11.0–0=) 10.Nge2 h5 (10...a6 11.0–0=) 11.h3 (11.0–0+=) 11...Qc8 12.a4 a6 13.Qb3 Nh7 14.f4 c6 15.Rb1 Re8 16.fe5 de5 17.ba6 ba6 18.Ba3 Ng5 19.Qb7 Qd8 20.Bc5 Ne6 21.Bb6 Qc8 22.Qc8 Nc8 23.Be3 Bf8 24.a5 Nc5 25.Kd2 Be6 26.Kc2 Ra7 27.Rhd1 Rd7 28.Nc1 Red8 29.Bf1 Bd6 30.Nb3 Nb3 31.Rb3 Bc7 32.Ra1 Nd6 (better is 32...f5!?=) 33.Na4+/– Re7 (33...Nb5 34.Nc5 Nd4 35.Bd4 ed4 36.Nd7 Bd7 37.g4+–) 34.Bg5+– Ree8 35.Bd8 Rd8 36.Nc5 Bc8 37.Rb6! Bb6 38.ab6 Re8 (38...f5 39.Bg2+–) 39.Kc3 Re7 40.Kb4 f5 41.Na6 fe4 42.c5 (42.c5 Nf5 43.Nc7+–) 1–0. Vokac,Marek (2510) – Dochev,Dimitar (2375), Pardubice Czech op, 1998.

7.d3 c6 8.Nf3 Qe7 9.0–0 d5 10.cd5 cd5 11.a3 =.

7.d3 Nc6 8.b5 Ne7 9.e4 Bd7 10.Nge2 h5 11.h3 Qc8 12.a4 a6 13.Qb3 Nh7 14.f4 c6 15.Rb1 Re8 16.fe5 de5 17.ba6 ba6 18.Ba3 Ng5 19.Qb7 Qd8 20.Bc5 Ne6 21.Bb6 Qc8 22.Qc8 Nc8 23.Be3 Bf8 24.a5 Nc5 25.Kd2 Be6 26.Kc2 Ra7 27.Rhd1 Rd7 28.Nc1 Red8 29.Bf1 Bd6 30.Nb3 Nb3 31.Rb3 Bc7 32.Ra1 Nd6 33.Na4+/– Re7 34.Bg5+– Ree8 35.Bd8 Rd8 36.Nc5 Bc8 37.Rb6! Bb6 38.ab6 Re8 39.Kc3 Re7 40.Kb4 f5 41.Na6 fe4 42.c5 (42.c5 Nf5 43.Nc7+–) 1–0. Vokac,Marek (2510) – Dochev,Dimitar (2375), Pardubice Czech op, 1998.

7.d3 Nc6 8.Nf3 Nb4–/+ 9.a4 c6 10.0–0 Na6 11.Rb1 Qc7 12.Ba3 b6 13.Nd2 Nc5 14.Bc5 bc5 15.Rb3 Bf5 16.Nde4 Ne4 17.Ne4 Rfb8 18.Qc2 Rb4 19.Rfb1 Rab8 20.Nc3 Qb7 21.Rb4 cb4 22.Ne4 Qc7 23.Rb3 a5 24.f3 d5 25.cd5 Qb6 26.Kf1 cd5 27.Nd2 Qe3 28.g4 Rc8 (28...Rc8 29.Qd1 Bd7–+) 0–1. mic (2120) – lefthandedgambit (2000), net–chess.com, 2008.

7.d3 Qd7 8.Nf3 Nc6 9.b5 Ne7 10.d4 Qe6 11.de5 =.

7.d3 Qe7 8.Nf3 c6 9.0–0 Nbd7 10.b5 d5 11.Rb1 =.

7.d3 Re8 8.Nf3 Nc6 9.b5 Ne7 10.0–0 a6 11.a4 =.

7.e3 c6 8.Nge2 Be6 9.d3 Qd7 (9...d5 10.cd5 Nd5 11.Nd5 Bd5 12.0–0+=) 10.h3 (10.0–0 d5=) 10...d5 11.cd5 cd5 12.d4 e4 13.Nf4 Rc8 14.Ne6 Qe6 15.0–0 Nfd7 (15...Nc6 16.a3=) 16.Qb3 (16.f3 f5=) 16...Nb6 17.Rfc1 N8d7 18.Na4 (18.Rc2 Rc6=) 18...Na4 19.Rc8 Rc8 20.Qa4 a6 21.Qb3 Nb6 22.b5 ab5 23.Qb5 Qc6 24.Qb3 Nc4 25.Rc1 b5 26.Ba3 Ra8 27.Bb4 Qa6 28.Rc2 Qa4 29.Bf1 Qa6 30.Be2 Qc6 31.Bd1 Qe6 32.Kg2 Rc8 33.Be1 (33.Bc5 Qe8=) 33...Qc6 34.Kh2 Bf8 35.Rc1 (35.Bb4 Bb4 36.Qb4 Qd7=) 35...Rb8 (35...Ra8 36.Rb1+=) 36.a4 Qb6 (better is 36...Bd6!?+=) 37.Qb5?? (better is 37.ab5 Qe6 38.Be2+=) 37...Qd6–+ (37...Qd6 38.Bb4 Qd8–+; 37...Qb5?! 38.ab5 Rb5 39.Be2=) 0–1. De Visser,Arno – Ootes, 1987.

7.Nf3 Re8 (7...e4 8.Nd4 c5 9.Nc2 cb4 10.Nb4 Bf5 11.Rb1=; 7...Nc6 8.b5 Nd4 9.0–0 Bg4 10.e3 Nf3 11.Bf3=; 7...c6 8.0–0 e4 9.Nd4 Qb6 10.Nc2 Re8 11.a3=; 7...Qe7 8.0–0 c6 9.b5 Be6 10.d3 cb5 11.Nb5=; 7...Na6 8.a3 e4 9.Nd4 c5 10.Nc2 Re8 11.0–0=) 8.d3 Nc6 9.b5 Nd4 10.e3 Nf3 11.Qf3=.

4.d3 Be7

5.b5 Be6 6.Nd2 0–0 7.h3 c6 8.a4 a6 9.Qb3 (9.Ngf3 h6–/+) 9...Nbd7 (9...ab5 10.ab5 Ra1 11.Ba1–/+) 10.d4 (10.bc6 bc6 11.Qc2 Nc5–/+) 10...ed4 11.Bd4 c5 (11...Nc5 12.Qb2–+) 12.Bc3 White prepares a5 12...d5 13.e3 Nb6 14.a5 dc4 15.Nc4 (15.Qc2 Nbd5 16.ba6 Nc3 17.ab7 Ra7 18.Qc3 Nd5 (worse is 18...Rb7 19.Bc4 Nd5 20.Qc1–/+) 19.Qc4 Ne3–+) 15...Nbd5 (better is 15...ab5!? 16.ab6 Ra1 17.Ba1 Bc4 18.Bc4 bc4 19.Qc4 Qb6–+) 16.ba6–/+ ba6 17.Nf3 (17.Be5!? Ne4 18.Nf3–/+) 17...Rb8–+ 18.Qc2 Nb4 (18...Nc3 19.Qc3 Nd5 20.Qd3–+) 19.Bb4 (19.Qb1 g6 20.Qc1 Ne4–+) 19...cb4 (19...Rb4?! 20.Rd1 Qc7 21.Bd3+=) 20.Be2? (better is 20.Rb1 Qd5 21.Qd3–+) 20...b3 21.Qb2 Bb4 22.Kf1 Ne4 23.Rd1 (23.Rc1 Qf6 (23...Ba5?! 24.g3–+) 24.Qb1 b2 25.Qb2 Rfc8 26.Qf6 gf6–+ (26...Nf6?! 27.Rc2–/+)) 23...Qc7 24.Qb3 (24.Qe5 Qe5 25.Nce5 b2–+) 24...Be1! 25.Qd3 (25.Re1 Rb3 Discovered attack; 25.Ke1 Rb3 Discovered attack; 25.Ne1 Rb3 Discovered attack) 25...Nf2 26.Qc2?? (26.Qd6 Rfc8 27.Rd4 Nh1 28.Ke1–+) 26...Nh1 27.Ke1 (27.Kg1 Ng3 28.Bd3 Ba5 29.Bh7 Kh8 30.Na5 Qa5 31.Qf2–+) 27...Qg3 28.Kd2 Nf2 (28...Bc4 29.Qc4 Rfc8 30.Qc8 Rc8 31.Rh1–+) 29.Rf1 (29.Rb1 Rb1 30.Qb1 Qg2–+) 29...Rfd8 30.Kc1 (30.Nd4–+) 30...Bc4 31.Bc4 Rbc8 (better is 31...Qd6 32.Bf7 Kh8 33.Nd4 Qa3 34.Kd2–+) 32.Rf2 (32.Kb1 Nd3!! 33.Nd2–+) 32...Rc4! 33.Qc4 Qf2 34.Qc7 (34.Qc3–+) 34...Qe3 35.Kb2 Re8 0–1. Isler,Benjamin – Herrmann,Sabine, Kiel GER, Open–B, 2014.

5.Nf3 Nc6+=.

5.g3 0–0 6.Bg2 c6 7.a4 Nbd7 8.e3 Re8 9.Ne2 Bf8 10.0–0 d5 11.cd5 Nd5 12.b5 Qc7 13.Qb3 Nc5 14.Qc2 Nb4–/+ 15.Qc3 Nbd3 16.Nd2 Nb2 17.Qb2 Be6 18.bc6 bc6 19.Nf3 f6 20.Rfd1 Red8 21.h3 Rab8 22.Qc1 Nb3 23.Qb2 Na1 24.Qa1 Rd1 25.Qd1 Bb3 26.Qc1 Kh8 27.Nd2 Ba4 28.Nc3 Bb5 29.Nb5 Rb5 30.Qc6 Qc6 31.Bc6 Rb2 32.Nc4 Rc2 33.Bd5 a5 34.e4 a4 35.Ne3 Rc1 36.Kg2 a3 37.Kf3 Bc5 38.h4 Rc3 39.g4 Be3 40.fe3 Rc2 (41.Be6 a2 42.Ba2 Ra2–+) 0–1. hal1958 – Translightor, playchess.de, 2003.

5.h3 0–0 6.Nd2 Nc6 7.b5=+ Na5 8.e4 c6 9.d4= ed4 10.bc6 Nc6–/+ 11.Ngf3 Qb6 12.Rb1 Qa5 13.Bd3 Nb4 14.Bc2 Nc2 15.Qc2 Bd7 16.Bd4= Bc6 17.Bc3 Qc7 18.0–0 Nd7 19.Rfe1 Bf6 20.Bf6 Nf6 21.Nd4 Bd7 22.f4 Rac8 23.Qb3 Qc5 24.Qc3 b5 25.e5 Nh5 26.Ne4= Qc4 27.Qc4 Rc4 28.Nb5 de5 29.fe5 Bc6 30.Ned6 Rc2=+ 31.Rec1 Rg2–+ 32.Kf1 Bd5 33.a4? Ng3 (33...Ng3 34.Ke1 Re2 35.Kd1 Re5 36.Na7 Bg2–+) 0–1. super knight – calu_mishu (1615), internet, 2006.

5.e4 0–0

6.Nc3 Nc6 7.a3 Nd4 8.Nd5 Nd5 9.cd5 f5 (9...c6 10.dc6 bc6 11.f4–/+) 10.Bd4 (10.Ne2 c5+=) 10...ed4–/+ 11.Nf3 fe4 (11...Bf6!?+=) 12.de4= Bg4 13.Be2 (worse is 13.Qd4 Bf3 14.gf3 Bf6–+ (14...Rf3?! 15.Rg1 Bf6 16.Qd1–/+)) 13...Bf3 14.Bf3 Bf6 15.Rc1 Qe7 (15...a5 16.0–0=) 16.0–0 Be5 17.g3 (17.Bg4 Rae8+=) 17...Rf6 (17...Qf6 18.Be2 Qe7 19.f4+=) 18.Bg2 (18.Bg4 Raf8=) 18...Rh6 (18...Raf8!?=) 19.f4+= Bf6 20.Qg4 (20.Qd3+=) 20...g5? (20...d3!?=) 21.h4+/– Bg7 (21...d3!?+/–) 22.hg5 (22.Qg5 Rf6+–) 22...Rg6+/– 23.Qh5 (23.Kh2 Rf8+/–) 23...Rf8 24.Rce1 (24.Bh3 d3 25.Bf5 Bd4 26.Kg2 d2+–) 24...c6 (24...d3 25.Rd1 a5 26.Rd3 ab4 27.ab4+–) 25.Bh3 (25.Rd1 cd5 26.Rfe1 b5+/–) 25...d3 26.Bf5 (26.Be6 Kh8+/–) 26...Bd4 27.Kg2 (27.Kh2 d2 28.Rd1 Rg7 29.Rd2 Bc3+–) 27...Rg7 (27...d2 28.Rd1 (28.Bg6 de1N 29.Re1 hg6 30.Qg6 Bg7=) 28...Rg7 29.Qh6+–) 28.Rh1 (28.Be6 Kh8+/–) 28...d2 29.Rd1 (better is 29.Be6 Kh8 30.Rd1+/–) 29...Rf5? (29...cd5 30.g6 de4 31.Rd2 Bf6+/–) 30.ef5+– Qe4 (30...Qe3 31.Qf3+–) 31.Qf3 Qf5 (31...Qc2 32.Qe2 Qf5 33.dc6 Qd5 34.Qf3 Qf3 35.Kf3 bc6 36.Rd2+–) 32.Rd2 (better is 32.dc6 bc6 33.Qc6 Rf7+–) 32...Bb6? (32...c5 33.bc5 dc5 34.g4+–) 33.Re1 (better is 33.dc6!? bc6 34.Qc6 Rf7+–) 33...cd5 (33...c5 34.Re8 Kf7 35.Qe2+–) 34.Qd5 Qd5 35.Rd5 Rd7 36.Re6 Bc7 37.f5 Kf7 38.Rh6 White plans f6 38...Kg8 (38...Kf8 39.g4+–) 39.Kf3 Rg7 (39...Kf8 40.g4+–) 40.Kf4 Re7 (40...Kf7 41.f6 Rg8 42.Rh7 Ke6 43.Rf5+–) 41.Re6 (41.f6 Re1+–) 41...Rd7 (41...Re6 42.fe6 Kf8 43.Rf5 Ke8 44.Rf7+–) 42.f6 (42.g4 Kf7+–) 42...Kf7 43.Kf5 Kf8 (43...a6 44.a4+–) 44.Rd1 (better is 44.g4!? Rf7+–) 44...d5 45.Rde1 Bg3 (45...Bd6 46.Re8 Kf7 47.Rh8+–) 46.Re8 Kf7 47.R1e7 Re7 48.Re7 (48.Re7 Kf8 49.Rb7+–) 1–0. Zach,T (1725) – Kotesovec,D, Plzen FSB C, 2003.

6.Nd2 a5 7.b5 =+.

6.Nd2 c6 7.Ngf3 Bg4 8.Be2 Nbd7 (8...Qb6 9.Bc3=) 9.0–0 Qc7 (9...Qb6 10.Bc3=) 10.a3 Rfe8 (10...a5 11.d4=) ˝–˝. Palac,Mladen – Zelcic,Robert, Pozega, 2000.

6.Qf3 Bg4 7.Qg3 Nc6 –/+.

6.Nf3 c6 =+.

5.Nf3 0–0

6.Nbd2 c6 7.h3 Nbd7 8.a4 Re8 9.Qc2 Bf8 10.e4 d5 11.b5 Bb4 12.Be2 d4 13.0–0 Nh5 14.Rfb1 Nf4 15.Bf1 Bd2 16.Qd2 Qf6 17.Kh2 Nf8 18.Ng1 N8e6 19.g3 Ng6 20.Bc1 h6 (20...Nc5 21.Bg2+=) 21.Ra2 Nc5 22.Qe2 Bd7 23.Qf3 Qf3 24.Nf3 f5 25.Nd2 fe4 26.Ne4 Ne4 27.de4 Nf8 28.Ba3 Rad8 29.Bd3 Ne6 30.Raa1 c5 31.h4 Rf8 32.Kg2 Rf6 33.f3 Rdf8 34.Rf1 (34.Be2 b6–/+) 34...Be8 (34...g5!? 35.Rad1 gh4 36.gh4 Nf4 37.Kf2 b6–+) 35.Rf2 b6 36.Raf1 g5 37.hg5 hg5 38.Bc1 Kg7 39.Rh1 Bg6 40.g4 Be8 41.Kg3 Rh6 (41...Nf4 42.Bf1+=) 42.Rh6 Kh6 43.Rh2 Kg7 44.Bd2 Rh8 45.Rh8 Kh8 46.Bc1 Kg7 47.Bd2 Kf6 48.Kh3 Nd8 49.Kg3 Nb7 50.Kf2 Bf7 51.Bc1 Na5 0–1. Franke,Helmut (2050) – Bylino,Oleg (2205), Wch Seniors, 2004.

6.e3 Bg4 7.Be2 h6 8.h3 Bh5 9.Nbd2 Nbd7 10.0–0 Bf3 11.Bf3+= c6 12.a4 d5 13.c5 Nh7 14.e4 Ng5 15.Be2 d4 16.Nc4 Qc7 17.f4 ef4 18.Bd4 Bf6 19.Bf6+= Nf6 20.Nd6 Qd7 21.Rf4+/– b6 22.Rf6 gf6 23.Bg4 f5 24.Nf5 Qe6 25.Ra3 Qf6 26.Qd2 Rad8 27.Qe3 Kh7? 28.e5 Qg6 29.Ne7 Qg7 30.Nf5?? Qg6 31.Nh4 Qg8 32.Bf5 Kh8 33.Kh1 Rd5 34.Nf3 Qg7+= 35.d4 Nf3 36.gf3 Rg8=+ 37.Ra2 Qg5 38.Qg5= Rg5 39.Be4+/– (39.Be4 Rd4 40.cb6 ab6 41.a5 (< 41.Bc6 Rh4=+) 41...ba5 42.ba5 Rd1 43.Kh2+=). dannyboy238 – yulio, ChessWorld.net, 2006.

6.e4 a5!?+=.

6.e4 h6 7.Be2= Be6 (7...Bg4 8.0–0=) 8.0–0 Nc6 (8...a5 9.b5=) 9.b5 Nb8 10.Nc3 a6 11.a4 (11.d4 Nbd7=) 11...ab5 (11...c5 12.bc6 Nc6 13.Rb1+=) 12.Nb5 (12.ab5 Ra1 13.Qa1 Nbd7=) 12...c6 (12...Nbd7 13.Qc2=) 13.Nc3 Nbd7 14.d4 ed4 15.Qd4 (15.Nd4 Nc5=) 15...Nc5 16.Nd2 (16.Qe3 Ng4 17.Qf4 Qa5+=) 16...Qb6 (16...Re8 17.Ra3+=) 17.Rfb1 Rfd8 (17...Rfe8 18.Bc1 Qc7 19.Nb3+=) 18.Ba3 (18.Ra3 Qc7=) 18...Qa7 (18...Qc7 19.Bb4+=) 19.Bd1 (19.Bb4 Ng4 20.Bg4 Bg4=) 19...Nfd7 20.Qe3 (20.Bb4!?+=) 20...Bg5–/+ 21.Qe2 (21.Qd4 Na4 22.Qa7 Ra7 23.Na4 Bd2 24.Bd6 Bc4–/+) 21...Bf6 (21...Ne5 22.Bc2–/+) 22.Qf3 (22.Bb2–/+) 22...Bc3 (better is 22...Ne5 23.Qg3 Ned3–+) 23.Qc3= Nf6 (23...b6 24.Bb2 f6 25.Bc2=) 24.Bc5 Qc5 The isolani on c4 becomes a target (24...dc5!? 25.e5 Nd7=) 25.Rb7+= d5 26.ed5 cd5 27.Bf3 dc4 (better is 27...Rac8!? 28.Rb5 Qc7+=) 28.Rb5+– White intends a5 28...Qd6 29.Ba8 Ra8 (29...Qd2 30.Qd2 Rd2 31.a5+/–) 30.h3 (30.a5 Qf4+–) 30...Rc8 31.a5 Bd7 (31...Nd5 A) 32.Nc4?! Qc6 (32...Nc3? 33.Nd6 Nb5 34.Nb5+–) 33.Qb2 Qc4=; B) 32.Qd4 Qc6 33.Qc4 Qc4 34.Nc4 Rc4 35.a6+/–) 32.Rb2 (32.Re5 Be6+–) 32...Nd5 33.Ne4 Nc3? (better is 33...Qg6 34.Qf3 c3+–) 34.Nd6 Ra8 (34...Rc6 35.Rb8 Kh7 36.Nf7+–) 35.Nc4 1–0. Wall,Bill – Rusian9, internet, 2004.

5.Nf3 Bg4

6.Nbd2 0–0 7.e4 Nc6 (7...a5 8.b5+=) 8.a3 (8.b5 Nb8=) 8...Nd4 (8...Re8 9.Be2=) 9.Bd4= ed4 10.Be2 Bf3 11.Bf3 (11.Nf3 c5=) 11...Nd7 (11...Qd7 12.0–0=) 12.Bg4 (12.0–0 Ne5=) 12...Ne5 (12...a5 13.0–0=) 13.Nb3+= Bf6 (13...Qe8 14.0–0+= (14.Nd4? Ng4 15.Qg4 Bf6–+)) 14.0–0 g6 (14...Re8 15.f4 Ng4 16.Qg4+=) 15.f4 Nd7 (15...Ng4 16.Qg4 Qe7 17.f5+=) 16.f5 (16.Qf3 Bg7+/–) 16...Bg5 17.fg6 hg6 18.Kh1 Be3 (18...Ne5 19.Nd4 Bf6 20.Bh3=) 19.Qe2 (19.Bd7 Qd7 20.Rf6 Kg7=) 19...Ne5= 20.Rad1 (20.Bf3 Qh4=) 20...Kg7 21.Nd2 (21.Bh3 Qe7=) 21...Qh4 22.Bf3? (better is 22.Bh3=) 22...Bf4 Threatening mate... how? 23.h3?? (better is 23.g3 Bg3 24.Nb3–+) 23...Qg3 24.Kg1 Qh2 25.Kf2 Bg3 0–1. Kinski,A – Jauk,Wilhelm, Berlin–ch U15, 1997.

6.e4 0–0 7.Be2= a5 8.a3 ab4=+ 9.ab4 Ra1 10.Ba1 Nc6 11.Bc3 Qa8 12.Qc2 Qa7 13.0–0 Ra8 14.h3 Bd7 15.Nfd2 Qa2 16.Rc1 Qc2 17.Rc2= Ra4 18.b5 Nd8 19.Rb2 Ne6 20.g3 Kf8 21.Rb4 Rb4 22.Bb4 Nd4 23.Bf1 c5 24.Ba5 Ke8 25.Kg2 Bd8 26.Bd8 Kd8=+ 27.Nc3 Be6 28.f4 ef4 (28...Ke7 29.Be2=) ˝–˝. hal1958 – Tapiwa, playchess.de, 2003.

6.e4 Na6 7.a3 =.

4.d4 ed4

5.Bd4 Nbd7 6.Nf3 b6 7.Nbd2 Bb7 8.Qc2 c5=+ 9.Bc3. jjjooojjjoojjoj – mwojo (2100), net–chess.com, 2005.

5.Bd4 Bf5 6.Nc3 Be7 7.Nf3 0–0=+ 8.g3 Nbd7 9.Bg2 b6 10.Nh4+= Bg6? 11.0–0 Rc8 12.Ng6 hg6 13.Qc2 c5 14.bc5 bc5 15.Be3 Ng4 16.Bd2 Nde5 17.Nd5+– Bf6 18.Rab1 Kh7 19.h3 Nh6 20.g4 Qd7? 21.g5+– (21.Nf6?! gf6 22.Rb7 Rc7+–) 1–0. wlittle (2100) – nbarletta (2100), net–chess.com, 2005.

5.Bd4 g6 6.Nf3 Bg7 7.e4 0–0 8.Nc3 Nc6–/+ 9.Be2 Re8 10.0–0? Nb4 11.Rb1 Nc6 12.Bd3 Bg4 13.Bf6 Bf6 14.Nd5 Ne5 15.Be2 Bf3–/+ 16.Bf3 b6 17.Be2 Bg7 18.Qc2 c6 19.Nb4 a5 20.Nd3 Nd3 21.Qd3 Re5 22.f4 Re8–/+ 23.Rfd1 c5 24.Bf3 Rb8 25.Kh1 Bd4= 26.f5 Qg5 27.fg6=+ hg6 28.Rb3 Kg7 29.Rdb1 Rh8 30.Rb6?? Rb6 31.Rb6 Qc1 32.Qd1–/+ Qf4 33.g3?? Qg3–+ (33...Qg3 34.Rb2 Bb2–+) 0–1. coloplayah (2000) – featers (2085), net–chess.com, 2005.

5.Qd4 Nc6

6.Qc3 d5 7.a3 d4 8.Qg3 Ne4=+ 9.Qf4 Nf6 10.Nf3 Bd6 11.Qg5 0–0 12.Nbd2 Be7 13.Nb3 Ne4 14.Qc1 Bf6 15.b5 Ne7 16.Nfd4 Ng6 17.f3 Bd4 18.Bd4+/– Nd6 19.e4 b6 20.Qc3+– f6 21.c5 bc5 22.Nc5 Rb8 23.a4 Nf7 24.Bc4 Kh8 25.Rd1 Qe7 26.0–0 Nfe5 27.Bd5 Nf4 28.Bc4?? Nc4?? 29.Qc4+– f5 30.ef5 Qg5 31.g3 Nh3 32.Kg2 Bf5 33.Nd7?? Bd7=+ 34.Ba7 Rbd8 35.Qc7= Nf4 36.Kh1 Bh3 37.Rfe1? Rd1–+ 38.Rd1 Ne6?? 39.Qc1 Qh5–/+ 40.g4 Qf7–+ 41.Qe3 Ng5 42.Bc5–/+ Re8 43.Qd2?? Qf3 44.Kg1 Qg4 45.Kh1 Qe4 46.Kg1 Nf3 47.Kf2 Nd2 48.Rd2 Qg2 0–1. ooioo (2315) – felippe (2215), net–chess.com, 2005.

6.Qc3 Ne4 7.Qb3 Be6 8.Nf3 d5 9.e3? Bb4–+ 10.Nc3?! dc4 11.Qc2 Nc3 12.Bc3 0–0 13.Bb4 Nb4 14.Qc3 Nd3 15.Bd3 Qd3 16.Qd3 cd3 17.Kd2 Rfd8 18.Rhc1 Rac8 19.Nd4 c5 20.Ne6 fe6 21.a4 c4 22.a5 b5 23.ab6 ab6 24.Rab1 Rc6 25.Rc3 Rd5 26.Rb4 b5 27.f4 g5 28.e4 Rdc5 29.g3 gf4 30.gf4 Rh5 31.h3 Ra6 32.Rb2 Rh3 33.Ke1 Ra1 (34.Kd2 Rh2 35.Ke3 Rb2 36.Rd3 Rb3–+) 0–1. nbh999 (2055) – Freyser (1905), ChessWorld.net, 2003.

6.Qe3 Be6 7.a3 Be7 8.Nf3 Ng4 9.Qe4 Bf6 10.Nc3 0–0 11.e3 Re8 (11...Nge5 12.Rd1+=) 12.Bd3= g6 13.Be2 Bg7 14.0–0 Nge5 15.Ne5 Ne5 16.Rfd1 Rb8 17.Rac1 (17.Qf4 g5 18.Qe4 f5=) 17...f5 18.Qc2 Nc4 19.Bc4 Bc4 20.Nb1 Bb2 21.Qc4 Kf8 22.Rc2 Be5 23.Qc7 Rc8 24.Qd8 Red8 25.Rcd2 Ke7 26.Kf1 (26.f4 Bf6=) 26...Rc6 27.h3 Rdc8 28.Rd3 a6 ˝–˝. woschkat (2350) – unikum (1900), net–chess.com, 2001.

6.Qe3 Be6 7.b5 Ne5 8.Nd2+=.

6.Qe3 Be7 7.b5 (7.Bf6 gf6 A) 8.a3 a5 (8...Be6 9.Nd2 a5 10.b5 Ne5 11.Rc1 d5) 9.b5 Ne5 10.Nd2 h5 11.Rd1 Be6; B) 8.Qb3 Be6= 9.e3 a5 10.b5 a4 11.Qc2 Ne5) 7...Nb4 (7...Ne5 8.Nd2+= Be6 9.Be5 de5 10.Ngf3 e4 11.Nd4 Bc5) 8.Qc3 (8.Qd2 d5 9.a3 Ne4 10.Qc1 dc4 11.Nc3 Bg5) 8...d5 9.a3 d4?? (better is 9...Ne4 10.Qc1 dc4+= 11.Nc3 Bg5) 10.Qb3+– d3 (10...a5 11.Nd2 Bf5 12.ab4 Bb4 13.Ngf3+/–) 11.ed3 (11.ab4 de2 12.Be2 0–0+–) 11...Nd3 (11...a5 12.ab4 Bb4 13.Bc3 Bc3 14.Qc3+–) 12.Bd3 0–0 (12...Nd7 13.Bc2+– (13.Bg7?! Nc5 14.Qc3 Nd3 15.Kf1 Rg8=)) 13.Nf3 Re8 (13...Bg4 14.Ne5+–) 14.0–0 Bg4 15.Nbd2 Bd6 (15...a6 16.Qc2+–) 16.Rae1 Nh5 (16...Be7 17.Qc2 h6 18.c5+–) 17.Re8 (17.Qc2 h6+–) 17...Qe8 18.Re1 Qd7 19.Ne5 (19.Qc2 h6+–) 19...Be5 20.Be5 (20.Re5 Nf4 21.Rg5 Ng6+–) 20...Rd8 21.Re3 Bf5 (21...f6 22.c5 Be6 23.Bc4 Bc4 24.Qc4 Qf7 25.Bc3 Qc4 26.Nc4+–) 22.Bf5 Qd2 23.g4 Qc1 (23...Nf6 24.Kg2+–) 24.Kg2 Rd1 1–0. themonkey – NN, GameColony.com, 2002.

5.Bd4 Nc6

6.a3 a5 7.b5 Nd4 8.Qd4 Be7 9.Nc3 0–0 10.Nf3 Bg4 11.e3.

6.a3 Nd4 7.Qd4 g6 (7...a5 8.Nf3 (8.e3 g6 9.Nc3 ab4 10.Nd5 Bg7 11.ab4) 8...Be7 9.e3 0–0 10.b5 Nd7 11.Nc3) 8.Nd2 (8.Nc3 Bg7 9.Rd1 0–0 10.Qd2 Bg4 11.g3; 8.Nf3 Bg7 9.Nc3 0–0 10.Rc1 Re8 11.Qd1; 8.Qe3 Be6 9.Qf3 Bg7 10.Nd2 Ne4 11.Rc1) 8...Bg7 9.Rd1 0–0 10.Qh4 a5 (10...Qe8 11.Qg3) 11.Ngf3 (11.b5+=) 11...ab4 12.ab4 Re8 (12...Ra4 13.b5–/+) 13.e3 Ra4 (13...h6 14.c5–/+) 14.b5+= d5 15.Be2 Bd7 (15...h6+=) 16.0–0 (better is 16.Nd4!?+=) 16...Bb5!–/+ 17.cb5? (better is 17.Rb1 Ba6 18.Rfd1–/+) 17...Rh4–+ 18.Nh4 c5 (18...d4 19.Nc4 Ne4 20.Nf3–+) 19.bc6 bc6 20.Nhf3 Qe7 21.Rfe1 c5 22.Rc1 (22.Nb1 Rb8–+) 22...Nd7 (22...Rb8 23.Red1–+) 23.Bb5 c4 24.Kf1 (24.e4 c3 (24...de4?! 25.Re4 Qd8 26.Rec4+=) 25.Nb1 de4 26.Nc3 Bc3 (26...ef3?! 27.Re7 Re7 28.Nd5+=) 27.Rc3 Rb8–+ (27...ef3?! 28.Re7 Re7 29.Rf3+=)) 24...Rc8 (24...Rb8 25.Bd7 Qd7 26.Re2–+) 25.Nd4 (25.e4 c3 26.ed5 Qd6–+) 25...Ne5 26.Ba6 (26.Re2 Nd3 27.Rb1 Qc7–+) 26...Rc7 (26...Ra8 27.Bb5 Nd3 28.N2f3 Bd4 29.ed4–+) 27.Rc3 (27.Red1 Nd3 28.Rc3 Qd6 29.Rd3 cd3 (worse is 29...Qa6 30.Rc3–+) 30.Bd3 Bd4 31.ed4 Qh2–+) 27...Nd3 (27...Qb4 28.Rec1 Nc6 29.N2f3–+) 28.Rb1 (28.Rd3 cd3 29.Bd3 Bd4 30.ed4 Qa3–+) 28...Bd4 29.ed4 Qh4 (29...Qf6 30.Rd3 cd3 31.Bd3 Qd4 32.Rb8 Kg7 33.Rb3 Rc1 34.Ke2 Qe5 35.Kf3–+) 30.Rd3 cd3 31.Nf3 Qf4 (31...d2 32.Rd1 (32.Nh4?? Rc1 33.Rc1 dc1Q 34.Ke2 Qc2 35.Ke1 Qe4 36.Be2 Qh4–+) 32...Qf4 33.h3–+) 32.Bd3 Rc1 33.Ke2 Rb1 34.Bb1 Qc1 (34...g5 35.g3 Qf6 36.Bc2–+) 35.Bd3 f6 36.g3 Kf7 37.Ne1 Qb2 38.Ke3 f5 39.Ng2 (39.h4 Qc1 40.Ke2 Ke6–+) 39...Qc1 40.Ke2 Ke6 (better is 40...Qa1!? 41.Ke3–+) 41.Nf4 Kd6 42.h4 Qc8 43.Kd2 Qd8 44.Nh3 (44.h5 Qf6 45.Ke3 g5–+) 44...Qa5 45.Ke2 Qa1 46.Ng5 Qd4 47.Nh7 Qb2 48.Ke3 (48.Kf1–+) 48...d4 (48...d4 49.Kf3 Qb7 50.Ke2 Qh7–+) 0–1. Mear,D – Ellames,G, Sell, 1997.

6.a3 Be6 7.e3 Nd4 8.Qd4 g6 9.Nc3 Bg7 10.Rd1 a5 11.Nf3.

6.b5 Nd4 7.Qd4 Be6 8.e3 d5 9.Nf3 Bb4 10.Nbd2 dc4 11.Bc4? Qd4–+ 12.ed4 Bc4 13.Ne5 Bd5 14.f3 Bc3 15.Rc1 Bd4 16.Rc7 0–1. wlittle (2330) – frenk (2075), net–chess.com, 2004.

6.b5 Nd4 7.Qd4 g6 8.Nc3 Bg7 9.e3 0–0 10.Nge2 Re8 11.g3?? Bf5 12.Bg2?? Ne4–+ 13.Qd1 Nc3 (13...Nc3 14.Nc3 Bc3 15.Kf1 Rb8–+) 0–1. gtate (1920) – falkbeer (1900), net–chess.com, 2004.

6.Bc3 Be7 7.b5 Ne5 8.e3 0–0 9.Be2 Be6 10.Nd2 a6 11.a4 ab5 12.ab5 Qd7 13.Ngf3= Nf3 14.Bf3 c6 15.b6 Qc8 16.0–0= Nd7 17.Ba5 Bd8 18.Ne4 Bc4?? 19.Nd6+– (19.Nd6 Qb8 20.Nc4+–) 1–0. gtate (2055) – grotesmurf (2000), net–chess.com, 2006.

6.Bc3 Be7 7.Nf3 Bf5 8.g3 0–0 9.Bg2 a6 10.0–0 Rb8 11.Nbd2 h6 12.a3 Qd7 13.Re1 Rbd8 14.Nd4 Nd4 15.Bd4 c6 16.Bb6 Rc8 17.Nf3 c5 18.bc5 dc5 19.Ne5?? Qd1?? 20.Red1 Bg4? 21.Ng4+/– Ng4 22.Bb7 Rb8 23.Rd7 Bf6 24.Rad1 Bd4? 25.e3+– Ne3? 26.fe3 Be3 27.Kg2 Bd4 28.a4 Rfe8 29.a5 Re2 30.Kh3 Rc2 31.Ba6 Re8 32.Rd8 Rd8 33.Bd8 g5 34.Bb5 Kg7 35.a6 Rc3 36.Rf1 f6 37.Re1 Kf7 38.Be8 Kf8 39.a7 Ra3 40.Re7 (40.Re7 Ra7 41.Ra7 Ke8 42.Bb6+–) 1–0. wlittle (2160) – wmalone (1800), net–chess.com, 2002.

6.Nf3 Nd4 7.Nd4 d5 8.e3? Bb4–+ 9.Nd2 Ne4?? 10.Qa4+= Qd7 11.Qb4 c5 12.Qb1 cd4?? 13.Ne4+/– de4 14.Qe4 Qe7 15.Qd4 0–0+= 16.Bd3 Rd8 17.Qc3 Qg5 18.0–0 Bf5 19.e4?? Bh3–/+ (19...Bh3 20.g3 Bf1 21.Rf1 Rd7–/+) 0–1. gtate (1920) – flgs (2055), net–chess.com, 2004.

5.Bd4 Be7

6.Bb2 d5 7.Qa4 Bd7 8.b5 =+.

6.Bb2 Nbd7 7.a3 b6 8.Nd2 Bb7 9.Ngf3 0–0 10.e3 c5 11.b5 d5 12.Qc2 Qc7 13.Bd3 Bd6 14.h3 Ne5 15.Ng5 Nd3–/+ 16.Qd3 d4 17.0–0–0 h6 18.Ngf3 a6 19.ed4 ab5–/+ 20.dc5 bc4?? 21.Qc4 Be7–/+ 22.Rhe1 Rfc8 23.Kb1 bc5 24.Ne5 Bd5–+ 25.Qf4 Rcb8 26.Ng6? Qf4 27.Nf4= Bf8 28.Re3 Bd6 29.Nd5 Nd5 30.Rd3 Be5=+ 31.Nc4 Nc3 32.Rc3? Bc3–+ 33.Rc1? Bd4 34.Rc2 Ra4 35.Ka2 Rc4! 36.Rc4 Rb2 (36...Rb2 37.Ka1 Rc2 38.Kb1 Rc4–+) 0–1. bentengutama (2170) – psoin (2255), net–chess.com, 2003.

6.b5 0–0 7.Nc3 Bf5 8.f3 Nbd7 9.e4 Bg6 (9...Be6 10.Nd5+=) 10.h4 (10.Nh3 Nh5=) 10...h5 (10...Nh5 11.Bf2 Bf6 12.Nge2+=) 11.Bd3 Re8 12.Qc2 Nc5 13.Bc5 (13.Bc5 dc5 14.Nge2+=). Baer,Cy (1895) – “NimzowitschAaron” [this is not right – using that name as a nick], RSS3D–94 remoteschach.de, 2008.

6.b5 0–0 7.e3 c6 8.a4 Bf5 9.Nd2 c5 10.Bc3 b6?? 11.h3?? Ne4 12.Ne4 Be4= 13.Nf3 Nd7 14.Bd3 Bd3 15.Qd3 h6 16.Rd1 a6 17.Nd2 ab5 18.ab5 Bf6 19.Ne4+/– Bc3 20.Qc3 f5 21.Nd6 Qg5 22.0–0 Nf6 23.Qe5+– Kh7 24.Qf5 Qf5 25.Nf5 Ra2 26.g4 Rf7 27.f4 g6 28.Nd6 Rfa7 29.f5 g5 30.e4 Rc2? 31.e5 Raa2= 32.Rf3 Rg2 33.Kf1 Rh2 34.Rg3 Rh1 35.Rg1 Rh3 36.Rg2 Rh1 37.Rg1 Rg1 38.Kg1+– Ng4 39.f6?? Ne5–/+ 40.f7 Kg7 41.Rf1 Ra8?? 42.Nf5?? Kg6?? 43.Nh6?? Rf8–+ 44.Nf5 Rf7 45.Nd6? Rd7 46.Ne4 Nc4 47.Kh1 Na3 48.Rf6–/+ Kh5 49.Rb6 c4?? 50.Nf6+– (50.Nf6 Kh4 51.Nd7+–) 1–0. bentengutama (1965) – felippe (2130), net–chess.com, 2003.

6.Nc3 0–0 7.e4 b6 8.Nf3 Bb7 9.Bd3 Nc6 10.0–0 Nd4 11.Nd4= c5 12.bc5 bc5 13.Nf5+= Rb8 14.Re1 a6 15.e5+/– de5 16.Re5 Bd6?? 17.Nd6+– Qc7 18.Nce4 Ne4 19.Be4 Be4 20.Re4 Rfd8 21.Re8 Re8= 22.Ne8 Re8 23.a4 h6 24.a5 Re6 25.Qf3 Rf6 26.Qa8= Kh7 27.Qe4 g6 28.Re1 Re6 (28...Re6 29.Qb1 Re1 30.Qe1 Qb7–/+) 0–1. gtate (1945) – emperador (1930), net–chess.com, 2003.

6.Nc3 c6 7.e4= 0–0 8.Bd3 Nbd7 9.Nf3 b6 10.0–0 Bb7 11.Re1 h6 12.e5 de5=+ 13.Ne5 Bb4 14.a3 Ba5 15.Re3?? Ne5?? 16.Be5–/+ c5 17.Rg3? Kh8?? 18.Ne4 Ne4?? 19.Bg7+– Kg8?? 20.Bh6 Ng3 21.Qg4 Kh8 22.Qg7 1–0. gtate (1700) – bar, net–chess.com, 2002.

6.Nc3 Nc6!? –/+.

6.Nd2 Nc6 7.Bc3 0–0 8.e3 d5 9.Bd3 Nb4–+ 10.Bb4 Bb4 11.Ne2? dc4 12.Bc4 Ne4 13.0–0 Nd2 0–1. gtate (1945) – nerveraking (2395), net–chess.com, 2005.

6.e3 0–0 7.b5 c5 8.Bc3 Be6+=.

6.e3 0–0 7.Nd2 Bf5 8.Ngf3 Ne4 9.Ne4= Be4 10.Bd3 Bd3 11.Qd3 Bf6 12.0–0+= Bd4 13.Nd4 Nd7 14.f4 Nb6 15.Rf3 f5 16.Ne6?? Qf6–/+ 17.Nd4 Nd7 18.Re1 c6 19.e4+= fe4 20.Re4 d5 21.Re6 Qf7 22.Rh3 h6 23.Rg3 Qf4 24.h3?? Qc1–+ 25.Kh2 Qc4?? 26.Nf5 Qd3?? 27.Rg7 Kh8 28.Rh6 1–0. bentengutama (1955) – felippe (2130), net–chess.com, 2003.

6.e3 0–0 7.Nf3 Be6 (7...Nc6 8.Bc3+= (8.a3 a5 9.ba5 Nd4 10.Nd4 Ra5 11.Bd3 Rg5 12.Qf3) 8...Ne4 9.b5 (9.Bd3 Nc3 10.Nc3 Bf6 11.Qb3 a5 12.b5) 9...Bf6 10.Bf6 Qf6 11.Nbd2 Nd2 12.Nd2) 8.Bd3 (8.b5 c5 9.Bc3 d5 10.Ng5 Bg4 11.Qd3 d4 12.ed4; 8.Bc3 d5 9.Nd4 (9.Ng5 Bf5 10.Bd3 Bd3 11.Qd3 dc4 12.Qc4; 9.Nbd2 dc4 10.Bc4 Bc4 11.Nc4 Qd1 12.Kd1; 9.c5 a5 10.a3 Ne4 11.Bd3 ab4 12.ab4) 9...Ne4 10.Qb3 Bh4 11.g3 Bf6 12.a3; 8.Nbd2 A) 8...c5 9.bc5 dc5 10.Bc3 Nc6 11.Qc2 Qd7 12.Rd1; B) 8...d5 9.a3 (9.b5 c5 10.Bf6 Bf6 11.Rb1 Bf5 12.Rb3) 9...Nc6 10.Bb2 a6 11.Qc2 Qd7 12.Rd1; C) 8...Nc6 9.Bc3 Nd7 10.Bd3 Nde5 11.Be4 Nc4 12.Bc6) 8...d5 9.c5 (9.Qb3 Nc6 10.c5 b6 11.0–0 Nd4 12.ed4) 9...a5 (9...Nc6 10.a3= (10.b5 Nd4 11.ed4 Bg4 12.h3) 10...Nd4 11.Nd4 b6 12.Qc2) 10.Ng5 (better is 10.b5= c6 11.Nbd2 cb5 12.Bb5) 10...ab4+/– (10...Bg4 11.Qc2 h6 12.Nh7) 11.Bf6 Bf6 12.Bh7 Kh8 13.Qh5 1–0. Brown,A – Adams,M, Dayton, 1982.

6.e3 Nbd7 7.Bd3 c5 8.bc5 Nc5 9.Nf3 0–0 10.0–0 Nd3 11.Qd2?? Nc5–+ 12.Nc3 Bg4 13.Ng5 Rc8 14.Qc2 g6 15.h3 Bf5 16.e4 Be6 17.f4 Bc4 18.Rfe1 Bd3 19.Qf2 Nce4! 20.Nce4 Ne4 21.Ne4 Bh4 22.Ng3 Bg3 23.Qg3–/+ Bf5 24.Re3 Re8 25.Rae1 Re3 26.Be3 Rc2 27.Bf2 d5 28.Qe3 1–0. saetta – Capsicum, ICS, 1999.

6.Nf3 0–0 7.Nc3 Nc6 8.e3 (8.a3 Nd4 9.Nd4 a5–/+) 8...Nb4–/+ 9.Qb3 (9.a3!? Nc6 10.Bd3–/+) 9...c5–+ 10.Bf6 Bf6 (10...gf6?! 11.a3 Nc6 12.Nd5=) 11.Rd1 Bc3 12.Qc3 Bf5. Bourassa,Francois – Thomas,Mario, QE.2004.0.083, 2004.

4.d4 Nbd7

5.c5 Be7 6.Nd2 0–0 7.e3 Re8 8.Bd3 (8.de5 Ne5 9.Ngf3 Nf3 10.Qf3 dc5 11.bc5 Bg4=+) 8...c6 (8...ed4 9.cd6 de3 10.de7 ed2 11.Qd2 Qe7 12.Kf1–/+) 9.Qf3? ( 9.Qc2=+) 9...ed4–+ 10.Bd4 Ne5 ( 10...dc5!? 11.bc5 Bc5–+) 11.Be5=+ de5 12.Bc2 Bg4 13.Qg3 a5 14.h3 Bh5 15.Qe5 Nd5?? ( 15...ab4 16.Ngf3 Bf8–/+) 16.Qh5+– g6 17.Qf3 Nb4 18.Bb3 Nd3 19.Ke2 Ne5 20.Qf4 ( 20.Qe4!? Bc5 21.Ngf3+–) 20...Qd3 21.Ke1 Bc5 22.Rd1 (22.Ngf3 Qc3 23.Ke2 Qd3 24.Kd1=) 22…Qc3?? (23.Kf1 Rad8+–; 22...Bb4 23.Ngf3 Rad8 24.Ne5 Bd2 25.Rd2 Qd2 26.Kf1 Qc1 27.Ke2 Qb2 (27...Qh1?? 28.Qf7 Kh8 29.Qf6) 28.Kf3 Qe5 (28...Re5?? 29.Qf7 Kh8 30.Qf6) 29.Bf7 Kf8 30.Be8 Qf4 31.Kf4 Ke8=+). Aliethah – NightClub, Live Game Caissa's Web, 2004.

5.Nd2 ed4 6.Bd4 Ne5 (6...Be7 7.a3=) 7.Qb3 (7.Ngf3 a5=) 7...Be6 (7...a5 8.b5+=) 8.f4 (8.Ngf3 Nc6=) 8...Neg4 (8...Nc6!? 9.e3 d5+=) 9.h3= Nh6 10.e4 Nfg8 (10...Bd7 11.Ne2=) 11.Ngf3+/– f6 (11...Qe7 12.Bd3+=) 12.0–0–0 (12.Bd3 Ne7+/–) 12...Qd7 (12...a5 13.f5 Bd7 14.b5+=) 13.f5 (13.g4 Ne7+=) 13...Bf7 14.Kb1 (14.g4 Ne7+=) 14...b5= 15.Be2 (15.Qa3 bc4 16.Bc4 d5 17.ed5 Nf5 18.Rhe1 Kd8+=) 15...c5 (15...a5 16.ba5 Ra5 17.Rhe1=) 16.Be3 (16.bc5 dc5 17.Be3 a6+=) 16...cb4 (16...bc4!? 17.Nc4 d5=) 17.Qb4+= d5 (17...bc4 18.Nc4 (18.Bc4? d5 19.Qb5 dc4 20.Qd7 Kd7–+) 18...d5 19.Qb2+/–) 18.Qb5+/– Qb5 19.cb5 de4 20.Ne4 (20.Nd4 Bd5+/–) 20...Nf5 21.Bf2 Ba3 22.g4 (better is 22.Rd3 Bb4 23.a3+/–) 22...Ngh6? (better is 22...Nfe7+/–) 23.gf5+– 0–0 (23...Nf5 24.Rd3 Bb4 25.a3+–) 24.Rd7 (24.Nd4 Rfe8 25.Bf3 Rab8+–) 24...Bh5 (24...Nf5 25.Ra7 Ra7 26.Ba7+–) 25.Ng3 Be8 26.Ra7 Rb8 1–0. marekt – NN, GameColony.com, 2002.

5.Nd2 Be7 6.e4 0–0 (6...a5 7.Qa4=) 7.Ngf3 (7.a3 Re8=) 7...ed4=+ 8.Nd4 Ne5 (8...c5 9.Nc2=) 9.f4 (9.Be2 c5 10.Nc2 cb4 11.Nb4 Qb6=) 9...Nc6 (9...Ng6 10.Qf3=+) 10.Nc6= bc6 11.Qc2 (11.Be2 a5 12.e5 Nd7 13.ba5 de5 14.fe5 f6=) 11...Rb8 12.Rd1 Rb4 13.Nf3 Bg4 14.Be2 Qb8 15.Bc3=+ Rb7 16.0–0 d5 17.cd5= cd5 18.Bf6 Bf6–/+ 19.e5 Be7 20.Rb1 Rb1 21.Rb1=+ Qc8 22.h3 Bf5–/+ 23.Bd3 Bd3 24.Qd3 Rd8 25.Kh2 c5 26.Rb5 g6 27.Qb3 d4 28.Rb7 c4–+ 29.Qb5 Bf8 30.Ng5 d3–+ 31.Rf7 d2 32.e6 d1Q 33.e7 Be7! 34.Re7 Qd5 35.Qb1?? Qcc6 36.Qc2 Qd2 (36...Qd2 37.Qd2 Rd2–+) 0–1. wlittle (2175) – gtan (1945), net–chess.com, 2005.

5.d5 Nb6 6.e3 Bd7 7.Nc3 Be7 8.a4 c5 9.b5 0–0 10.Be2 Re8 11.e4 Bf8 12.Nf3 a5 13.0–0 Nc8 14.Nd2 b6 15.f4 ef4 16.Rf4 Ne7 17.Na2 Ng6 18.Rf1 Ne4 19.Ne4 Re4 20.Nc3 Re7 21.Bd3 Qc7 22.Qd2 Rae8 23.Rae1 Ne5 24.Be2 f5 25.Nd1 g6 26.Be5 Re5 27.Bd3 R5e7 28.h3 Qd8 29.Re2 Bg7 30.Rfe1 Bd4 31.Kh1 Re5 32.Kh2 Qh4 33.g3 Re2 34.Be2 Qe4 35.Qd3 Qd3 0–1. ghorn (2200) – geldridge (2355), net–chess.com, 2014.

5.e3 c6 6.Be2 a5 7.b5= cb5 8.cb5 ed4 9.Qd4 b6 10.Bf3 Ra7 11.Nc3 Bb7 12.Bb7+/– Rb7 13.Nf3 Be7 14.0–0 0–0 15.Rac1 Nc5 16.Nd5 Nd5?? 17.Qg7# (17.Qd5?! Qd7+=) 1–0. fretless – ana_goldberg, internet, 2005.

5.e3 Be7 6.Nf3 e4 7.Nfd2 c6 8.Be2 d5 9.0–0 Kf8 10.Nc3 g6 11.b5 c5? 12.cd5 cd4 13.Nce4 de3? 14.fe3 Kg7 15.d6 Qb6 16.de7 Qe3 17.Kh1 Re8 18.Nf6 Nf6 19.Bf6 (19.Bf6 Kg8 20.Nc4+–) 1–0. Eralos (1925) – ajejor (1840), ajedrez21.com, 2001.

5.e4 Ne4 6.Nd2 Nd2 7.Qd2 –/+.

5.e4 Be7 6.Nf3 (6.Bd3 a5=) 6...ed4 (6...Ne4 7.Bd3 Ng5 8.Ng5 Bg5 9.0–0=+) 7.Bd4 (7.Nd4 d5 8.cd5 Ne4=) 7...0–0 (7...c5 8.bc5 dc5 9.Bc3=+) 8.Nc3 (8.Bd3 c5 9.bc5 dc5=) 8...c5=+ 9.bc5 dc5 10.Be3 a6 (10...Ng4 11.Bd2=+) 11.Be2 Qc7 12.0–0 Ne5 13.Nd5 Nf3 14.Bf3 Nd5 15.cd5 Bd6 16.h3 Bd7 17.Qe2 b5 18.Rfc1 Rac8 19.Rc2 c4=+ 20.Bd4 Bc5 21.Bc5= Qc5 22.Rac1 Rfe8=+ 23.a4 Qb4 24.ab5 ab5 25.e5 Bf5 26.Rc3 h6 27.d6 Qc5 28.Rd1 b4 29.Rd5=+ bc3 30.Rc5 Rc5 31.g4? Bd3?? 32.Qe3?? Rce5–+ 33.Qd4?? c2 34.d7 c1Q 35.Kg2 Qg5 36.de8Q Re8 37.Kg3 Qe5 (37...Qe5 38.Qe5 Re5–+) 0–1. wlittle (2175) – gtan (1945), net–chess.com, 2005.

5.Nf3 Be7 6.e3 0–0 7.Be2 ed4 (7...e4 8.Nfd2=+) 8.Nd4= Nb6 9.0–0 a6 (9...c5 10.bc5 dc5 11.Nf3=) 10.Nd2 Bd7 11.a4 c5 12.bc5 dc5 13.N4f3 Qc7 14.Qc2 Qc8? 15.Bd3?? Be6 16.Ng5 g6 17.Rab1 Nh5 18.Ndf3 Bg5 19.Ng5 Nd7?? 20.Qc3+– f6 21.Ne6 Rf7 22.Ba1 Ne5 23.Nf4 Nf4 24.ef4 Ng4 25.h3 Nh6 26.Be4 Rb8 27.Bd5 Qc7 28.Qf6 Rbf8 29.Qg7# 1–0. waterslag (2255) – wmalone (2080), net–chess.com, 2009.

5.de5 de5

6.a3 a5 A) 7.Qb3 A1) 7...Qe7 8.c5 ab4 9.ab4 Ra1 10.Ba1 b6 11.Qc2; A2) 7...Be7 8.Nd2 0–0 9.e4 b6 10.Bd3 Bd6 11.Ngf3; A3) 7...ab4 8.ab4 Ra1 9.Ba1 Qe7 10.b5 Ne4 11.Bc3; A4) 7...b6 8.Nd2 ab4 9.ab4 Ra1 10.Ba1 Bd6 11.Ngf3; B) 7.Qa4 Ra6 8.b5=+ Nc5 9.Qc2 Rd6 10.Nd2 e4 11.Nb3.

6.a3 b6 7.Nf3 (7.Nc3 c5 8.b5 Bb7 9.Qd2 Qe7 10.Rd1 0–0–0 11.Nh3; 7.e3 A) 7...Bb7 8.Nf3 (8.Nc3 a5 9.b5 Bd6 10.Nf3 0–0 11.Be2) 8...a5 9.b5 Bd6 10.Be2 0–0 11.Nc3; B) 7...a5 8.b5 Bd6 9.Nc3 0–0 10.Qf3 Ra7 11.Nd5; C) 7...Bd6 8.Nf3 (8.Nc3 Bb7 9.Nf3 e4 10.Nd4 0–0 11.Be2) 8...0–0 9.Nc3 a6 10.Nh4 e4 11.Qc2; 7.Nd2 Bb7 (7...Bd6 8.e3 Bb7 9.Ngf3 0–0 10.Nh4 Re8 11.Nf5; 7...a5 8.b5 Be7 9.Ngf3 Bd6 10.g3 Bb7 11.Bg2) 8.Ngf3 e4 9.Ne5 Ne5 10.Be5 Ng4 11.Qa4) 7...Bd6 (7...a5 8.b5 Bd6 9.Nc3+= 0–0 10.e4 Nc5 11.Bd3) 8.Qa4 (8.Nc3 a6= 9.g3 Bb7 10.Bg2 0–0 11.0–0) 8...0–0+= 9.Nbd2 (9.Nc3 Bb7+= 10.Rd1 a5 11.b5) 9...Re8 (9...Bb7 10.Bc3 e4 11.Nd4) 10.e3 (10.e4 Bb7 11.Qc2) 10...c5 (better is 10...a5!?+= 11.Rd1; 10...Bb7 11.Rd1) 11.Qc6+= Bb8 (11...Qc7 12.Qa8 Ba6 13.Qe8 Ne8 14.e4+=) 12.Ne4+/– Re6?? (better is 12...Qc7 13.Nf6 gf6+/–) 13.Qa8+– Qc7 14.Nfg5 (better is 14.Rd1 Bb7 15.Nf6 Nf6 16.Rd8 Qd8 17.Qb7 cb4 18.ab4+–) 14...Bb7+/– 15.Ne6 fe6 (15...Ba8?? 16.Nf6 Nf6 17.Nc7 Bc7 18.0–0–0+–) 16.Nf6 gf6 17.Qb7 Qb7 18.b5 Kf7 19.0–0–0 Ke7 20.f3 Qc8 (20...e4 21.Be2 a6 22.f4+/–) 21.Bd3 (21.Be2 a6 22.Rd2 Nf8+–) 21...Qg8 (21...a6 22.Rd2+/–) 22.g3 (22.Be4 f5 23.Bc6 Nf6+–) 22...h6 (22...Qg5 23.Rhe1+–) 23.Be4 Qg5 24.Rhe1 f5 25.Bc6 Bd6?? (25...Nf6 26.Rd2+–) 26.Kb1 (26.Bd7 Qh5 27.Bc6 Qh2+–) 26...f4? (26...Nf6+–) 27.ef4 ef4 (27...Qf5 28.Re4 Nf8+–) 28.g4 (better is 28.Bd7 Kd7 29.Be5 Qf5 30.Kb2 fg3 31.Rd6 (worse is 31.Bd6 gh2 32.Bh2 Ke8+–) 31...Ke7 32.Bg3 Qf6 33.Kc2 Qf5 34.Kd2+–) 28...Qg6 (28...Nf8 29.Re4+–) 29.Be4 Qf7 (29...Qg5 30.Re2 Nf8 31.Bc2+–) 30.Bf5 (30.Re2!? Bc7+–) 30...Nf8 (30...Be5 A) 31.Re5 Ne5 32.Re1 A1) worse is 32...ef5 33.Re5 Kd7 34.Rd5 Ke8 35.h3+= (35.gf5? Qh5–+); A2) 32...Nf3 33.Re6 Qe6 34.Be6 Ke6–+; B) 31.Be5 ef5 32.Bc7 (32.Bf4?! Kd8+/–) 32...Kf8 33.Rd5 fg4 34.fg4+/–) 31.Re2 (31.Rd5 Qg8+–) 31...h5 32.h3 Kd7? (32...hg4 33.hg4 Bc7 34.Be4+–) 33.Be4 (better is 33.Be5!? ef5 34.Rd6 Kc8 35.Rc6 Kb7 36.Rc7 Qc7 37.Bc7 Kc7 38.gh5 Kd6+–) 33...Kc7 34.Red2 Be7 35.Be5 Kc8 36.Kc2 (36.gh5!? Qh5 37.Bf4 Bg5+–) 36...hg4 37.hg4 Bg5?? (37...Bf6 38.Bd6+– (38.Bf4?! e5 39.Bf5 Kc7 40.Rd7 Nd7 41.Rd7 Qd7 42.Bd7 ef4+/–)) 38.Rh1 (better is 38.Rd6 Nd7 39.Bb7 Kb7 40.Rd7 Qd7 41.Rd7 Kc8 42.Rc7 Kd8 43.Ra7+–) 38...Ng6 (38...Bf6 39.Bd6+– (39.Bf4?! e5 40.Bh6 Qc4 41.Kb1 Qb5 42.Rb2 Qe8+=)) 39.Bc3 (better is 39.Bg6 Qg6 40.Kb3+–) 39...e5? (39...Nf8+–) 40.Kb3 Bf6 41.Bf5 Kb8 (41...Kc7 42.Rd7 Qd7 43.Bd7 (43.Bg6?! Kd8+=) 43...Kd7 44.Rh6+–) 42.Rd7 Qe8 (42...Qd7 43.Bd7 (43.Bg6?! a6 44.ba6 b5+=) 43...Nf8 44.Bf5+–) 43.Rhh7 Ne7 44.Be5! Be5 45.Rhe7 (45.Rhe7 Qd7 46.Rd7+–) 1–0. Borek,Jan (2000) – Jawor,Mateusz (2560), IV Open Stary Sacz POL, 1998.

6.a3 c5 7.b5 Be7 8.Qc2 Qa5 9.Nd2 0–0 10.Ngf3 Bd6 11.e3.

6.Qa4!? =+.

6.Nf3? Bb4–+ 7.Nc3 Ne4 8.Qc2 Nc3 9.Bc3 Qe7 10.e3 f6 11.Bd3?? Bc3 12.Qc3 Nc5?? 13.0–0? e4 0–1. wlittle (2175) – sp (2210), net–chess.com, 2005.

4.d4 e4

5.Nc3 d5 6.c5 b6 7.e3 Bg4 8.f3 ef3 9.gf3 Be6 10.Qa4 Nc6?? 11.Bb5+– Bd7 12.Bc6 Bc6 13.Qc6 Ke7 14.Nb5 Rc8 15.Na7 Ra8 16.cb6 cb6 17.Qb7 Nd7 18.Nc6 (18.Nc6 Ke8 19.Nd8 Bb4 20.Kd1 Rd8 21.Qd5+–) 1–0. Chairboy – xCalvin, ChessWorld.net, 2005.

5.Nd2 d5 6.e3 Bb4–/+ 7.Qb3 Bd2 8.Kd2 0–0 9.cd5 Nd5 10.Bc4 c6 11.Ne2 Qa5 12.Nc3 Nd7 13.Ke2 N7b6 14.Bd5 cd5 15.Rhc1 Nc4–+ 16.a4 Bg4 17.Kf1?? Nd2–+ 18.Kg1 Nb3 0–1. gtate (1830) – gigi (1695), net–chess.com, 2003.

5.e3 c6

6.Nd2 d5 7.a3 Be6 8.f3 ef3 9.Ngf3= dc4 10.Bc4 Bc4 11.Nc4 Be7 12.Qc2 0–0 13.0–0 Nbd7 14.e4 Nb6 15.Na5 Qc8 16.Rac1 h6 17.h3 Rb8 18.e5 Nfd5= 19.Qe4 f5 20.Qe2 Qe6 21.Nc4 Nc4 22.Qc4 f4 23.Rc2 Kh8 24.Bc1= Qg6 25.Qe2 Rbe8 26.Nh2 Bh4 27.Bd2?? Qc2–+ 28.Nf3 Bg3 29.Rc1 Qb2 30.Kf1 Ne3! 31.Be3 fe3 32.Qb2+– 1–0. wlittle (2155) – gtan (1945), net–chess.com, 2005.

6.Nd2 d5 7.a3 Bg4 8.f3 ef3 9.Ngf3 Ne4 10.Be2 Nd2 11.Nd2 Be2= 12.Qe2 Qh4 13.g3+= Qh3 14.cd5 cd5 15.Rf1 f6 16.Rc1 Qd7 17.e4 de4 18.Ne4 Kd8 19.Rd1 Bd6 20.Kf2 Re8 21.Qf3 Nc6 22.Rfe1 Ne7? 23.Kg2?? Rc8 24.Rc1 Rc1 25.Rc1 Nc6 26.d5 Ne5 27.Be5 Re5 28.Nd6 Qd6 29.Rd1 g6 30.h4 Qa6 31.d6+= Qe2 32.Qe2 Re2 33.Kf3 Re6 34.Kf4 Kd7–/+ 35.g4 Rd6 36.Re1 Rd3 37.Re3 Re3–+ 38.Ke3 Ke6 39.Ke4 f5 40.gf5 gf5 41.Kf4 Kf6 42.a4 b6 43.b5 h5 44.Ke3 Ke5 45.Kf3 f4 46.Ke2 Ke4 47.Kf2 f3 48.Kf1 Kf4 49.Kg1 Kg3 50.Kf1 f2 (50...f2 51.Ke2 Kg2–+) 0–1. coloplayah (1960) – tatamata (1640), net–chess.com, 2005.

5.e3 d5

6.a3 A) 6...Be6 7.cd5 (7.Qc2 c6 8.Ne2 dc4 9.Nd2 a5 10.ba5 Qa5+=; 7.Qa4 c6 8.cd5 Nd5 9.Ne2 b5 10.Qc2 a5+=) 7...Nd5 8.Nc3 Nc3 9.Bc3 Bd5 10.Ne2 Bd6=; B) 6...Bd6 7.Nd2 (7.cd5 Nd5 8.Qc2 Qh4 9.g3 Qe7 10.Ne2 Bg4+=; 7.Nc3 c6 8.cd5 cd5 9.Rc1 Nc6 10.Nge2 0–0+=; 7.Qc2 c6 8.Nc3 a6 9.c5 Bc7 10.Nge2 0–0+=; 7.Qb3 c6 8.Nc3 0–0 9.cd5 cd5 10.Rc1 Nc6+=) 7...Be6 8.cd5 Bd5 9.Ne2 0–0 10.Nc3 c6=; C) 6...c6 7.Nc3 (7.cd5 cd5 8.Nc3 Bd6 9.Nb5 Be7 10.Rc1 Nc6+=; 7.Be2 dc4 8.Bc4 Bd6 9.Nc3 b5 10.Bb3 a5+=; 7.Nd2 Bd6 8.Be2 0–0 9.Rc1 Be6 10.c5 Bc7+=; 7.Qb3 Bd6 8.Nc3 0–0 9.cd5 cd5 10.Nge2 a5+=; 7.c5 Be7 8.Nc3 0–0 9.Qa4 Bf5 10.Rb1 Qc7=; 7.Qc2 Bd6 8.Nc3 a6 9.c5 Bc7 10.Nge2 0–0+=) 7...Bd6 8.Rc1 dc4 9.Qc2 Bf5 10.Bc4 b5=; D) 6...Be7 7.cd5 (7.Nc3 c6 8.cd5 cd5 9.Nge2 a5 10.Qa4 Bd7=; 7.Qc2 c6 8.cd5 cd5 9.Nd2 0–0 10.Rc1 Bd6+=; 7.Qa4 Bd7 8.Qb3 Be6 9.Nc3 c6 10.cd5 cd5=) 7...Nd5 8.Qc2 f5 9.Nc3 Be6 10.Nd5 Bd5=; E) 6...a5 7.Qa4 Nbd7 8.cd5 Nd5 9.ba5 Bd6 10.a6 N5f6=; F) 6...Nbd7 7.cd5 (7.Nc3 c6 8.Rc1 Be7 9.cd5 cd5 10.Nb5 0–0=; 7.Qc2 c6 8.Nc3 Be7 9.Nge2 0–0 10.Nf4 dc4=) 7...Nd5 8.Nc3 N7f6 9.Nd5 Nd5 10.Qc2 f5=; G) 6...Bg4 7.Qb3 c6 8.Nc3 Bd6 9.Rc1 dc4 10.Bc4 0–0=.

6.Qa4 Bd7 (6...c6 7.c5 (7.Nc3 dc4 8.b5 Nd5 9.Bc4 Nb6 10.Qb3 Nc4+=; 7.b5 cb5 8.Qb5 Nc6 9.Bc3 a6 10.Qb3 Ra7+=; 7.Nd2 dc4 8.b5 Be6 9.Bc4 Bc4 10.Qc4 a6+=; 7.cd5 Nd5 8.a3 Bd6 9.Ne2 Nd7 10.Nbc3 N7b6+=; 7.Qb3 Be6 8.c5 b6 9.Nc3 a5 10.Na4 Nfd7+=; 7.a3 dc4 8.b5 a6 9.Bc4 cb5 10.Bb5 Bd7+=) 7...Be7 8.b5 Bd7 9.Nd2 a6 10.b6 0–0=; 6...Nbd7 7.Nc3 (7.Nd2 dc4 8.Bc3 Nd5 9.Qc2 N7b6 10.a3 Qh4+=; 7.a3 c6 8.cd5 Nb6 9.Qc2 cd5 10.Nc3 Bd7+=) 7...c6 8.c5 b5 9.cb6 Nb6 10.Qa5 Bd6+=; 6...Nc6 7.a3 (7.b5 Ne7 8.Nc3 Be6 9.c5 b6 10.Nge2 Ng6=; 7.c5 Be7 8.Nc3 0–0 9.Nge2 Bg4 10.b5 Nb8=; 7.Ba3 Bd7 8.b5 Ba3 9.Qa3 Ne7 10.cd5 Ned5+=) 7...Bd7 8.Qc2 Ne7 9.Nc3 c6 10.Rc1 a5=) 7.b5 (7.Qb3 Be6 8.Nc3 Bd6 9.c5 Be7 10.Nge2 0–0=) 7...Bd6 (7...c6 8.Nc3 dc4 9.Bc4 cb5 10.Bb5 Nc6+=) 8.c5 (8.Ba3 Be6 9.Bd6 cd6 10.cd5 Bd5=) 8...Be7 9.Ne2 (9.Nc3 0–0 10.Nge2 c6=) 9...a6 (9...c6 10.Nec3 0–0=) 10.Nbc3 0–0 11.Nf4 Be6 12.Be2 Nbd7 13.ba6 ba6 (13...Nb8 14.f3 ef3 15.Bf3 Na6 16.Qb3+=) 14.0–0 g5? (better is 14...Nb8!?+=) 15.Ne6+– fe6 16.Qc6 (16.Ba6? Nb8–+) 16...Kf7 17.f3 e5 (17...ef3 18.Bf3 Ra7+–) 18.Nd5 Nd5 (18...Rb8 19.Rab1 ed4 20.fe4 Ne5 21.Qa6 c6 22.ed4 Ra8+–) 19.Qd5 Kg7 20.fe4 Bf6 (20...Rb8 21.Bc3 Kh8+–) 21.de5 (21.de5 Ne5 22.Be5 Qd5 23.Bf6 Rf6 24.ed5+–) 1–0. marekt – golly1, ChessWorld.net, 2007.

6.Qb3 A) 6...Be6 7.c5 (7.a3 Bd6 8.Nc3 dc4 9.Bc4 Bc4 10.Qc4 c6+=; 7.Nd2 Be7 8.cd5 Bd5 9.Bc4 Bc4 10.Qc4 c6+=; 7.b5 Bd6 8.c5 Be7 9.Ne2 b6 10.c6 a6=; 7.Nc3 c6 8.a3 Bd6 9.c5 Bc7 10.b5 Nbd7+=; 7.Qa4 c6 8.c5 Ng4 9.h3 Qh4 10.g3 Qh6=; 7.Ba3 Nbd7 8.b5 dc4 9.Bc4 Bc4 10.Qc4 Nb6+=) 7...Be7 8.Ne2 c6 9.Nf4 Bg4 10.b5 Nbd7=; B) 6...Be7 7.Nc3 (7.cd5 Nd5 8.Bc4 c6 9.b5 Be6 10.Nc3 Nc3=; 7.a3 c6 8.Nc3 0–0 9.cd5 cd5 10.Nge2 Na6=; 7.b5 Be6 8.Nc3 dc4 9.Bc4 Bc4 10.Qc4 Bd6=) 7...Be6 8.b5 dc4 9.Bc4 Bc4 10.Qc4 Bd6=; C) 6...Bd6 7.Nc3 (7.a3 Be6 8.Nc3 dc4 9.Bc4 Bc4 10.Qc4 c6+=; 7.Nd2 Be6 8.c5 Be7 9.Ne2 Bg4 10.h3 Bf5=; 7.c5 Be7 8.Nc3 0–0 9.Nge2 b6 10.Nf4 c6+=; 7.b5 Be6 8.c5 Be7 9.Ne2 b6 10.c6 a6=; 7.cd5 Nd5 8.Bc4 Be6 9.a3 Qg5 10.Ne2 c6+=; 7.Be2 0–0 8.c5 Be7 9.Nc3 Be6 10.Rc1 a6+=) 7...dc4 8.Bc4 0–0 9.Nge2 Qe7 10.0–0 Nbd7=; D) 6...a5 7.b5 (7.ba5 Ra5 8.Nc3 c6 9.Be2 Be7 10.f3 0–0=; 7.Qa4 Nbd7 8.ba5 c6 9.c5 Ra5 10.Qc2 b6+=; 7.a3 ab4 8.ab4 Ra1 9.Ba1 Be7 10.Nc3 Be6+=) 7...a4 8.Qc2 a3 9.Bc3 Nbd7 10.Ne2 Bd6=; E) 6...Nc6 7.a3 Be6 8.cd5 Nd5 9.Qc2 Qh4 10.g3 Qg4=; F) 6...a6 7.Nc3 (7.a3 Be6 8.Qc2 c6 9.c5 b5 10.cb6 Qb6=; 7.Be2 Be6 8.Nc3 dc4 9.Bc4 Bc4 10.Qc4 Bd6+=; 7.Nd2 Be6 8.b5 Be7 9.Nh3 Bh3 10.gh3 dc4+=) 7...Be6 8.a3 dc4 9.Bc4 Bc4 10.Qc4 Bd6=; G) 6...c6 7.Nd2 (7.Nc3 Be6 8.c5 b6 9.Nge2 a5 10.Na4 Nbd7+=; 7.b5 cb5 8.Qb5 Nc6 9.Ba3 a6 10.Qa4 Bd7+=; 7.a3 Bd6 8.Nc3 0–0 9.cd5 cd5 10.Rc1 Nc6+=; 7.Be2 Be6 8.c5 Be7 9.b5 b6 10.Qa4 Bd7+=; 7.cd5 cd5 8.Nc3 Nc6 9.b5 Na5 10.Qa4 Be6=; 7.c5 Be7 8.Nd2 b6 9.Rc1 0–0 10.b5 a6+=) 7...Be6 8.c5 Be7 9.b5 Qc7 10.Ne2 b6=.

6.b5 A) 6...a6 7.Qa4 (7.cd5 Nd5 8.Nd2 Bb4 9.a3 Ba5 10.Qc2 Qh4+=; 7.Qc2 Be6 8.cd5 Bd5 9.Nc3 Bb4 10.a3 Ba5+=; 7.Ba3 Ba3 8.Na3 ab5 9.Nb5 Be6 10.Qb3 0–0+=; 7.Qb3 ab5 8.Qb5 Nc6 9.Bc3 Qd7 10.a3 Bd6+=; 7.ba6 Na6 8.Qb3 Ra7 9.Nd2 Bb4 10.Bc3 Bc3+=) 7...Nbd7 8.ba6 Ra6 9.Qc2 Ra5 10.cd5 Rd5=; B) 6...Be6 7.Qa4 (7.c5 b6 8.Qc2 a6 9.a4 Be7 10.Ne2 0–0+=; 7.Qb3 Bd6 8.c5 Be7 9.Ne2 b6 10.c6 a6=; 7.Nd2 Bb4 8.cd5 Qd5 9.a3 Ba5 10.Qc2 c6+=; 7.cd5 Nd5 8.a3 Be7 9.Ne2 a6 10.Nec3 ab5=; 7.Qc2 Bb4 8.Bc3 Bd6 9.c5 Be7 10.Ne2 0–0=; 7.Bc3 dc4 8.Nd2 Be7 9.Rb1 Nbd7 10.Qc2 Nb6+=) 7...Bd6 8.c5 Be7 9.Ne2 0–0 10.Nf4 Bg4=; C) 6...Bb4 7.Nc3 (7.Bc3 Bd6 8.Nd2 Be6 9.c5 Be7 10.Ne2 0–0=) 7...Be6 8.Qb3 a5 9.a3 Bc3 10.Qc3 dc4=; D) 6...Bg4 7.Qb3 (7.Qc2 c6 8.Nc3 Be6 9.bc6 Nc6 10.cd5 Bd5=; 7.Qd2 Nbd7 8.h3 Bf5 9.Nc3 dc4 10.Bc4 Nb6+=; 7.Be2 Be2 8.Ne2 dc4 9.Qa4 Bd6 10.Nd2 0–0=; 7.Qa4 Nbd7 8.Qc2 Be6 9.Ne2 Bb4 10.Nd2 0–0=) 7...Be6 8.Nc3 dc4 9.Bc4 Bc4 10.Qc4 Nbd7=.

4.e3 a6

5.a3 c6 6.Nf3 h6 7.Be2 Be7 8.d3 Be6 9.Nbd2 Qc8 10.0–0 Nbd7 11.e4 b6 12.Qc2 (12.d4 ed4 13.Nd4 0–0+/–) 12...c5= 13.Rfc1 Bg4 14.h3 Bf3 15.Nf3 (worse is 15.gf3 Nh5+=) 15...0–0 16.Bc3 Nh5 17.g3 (17.Ne5 de5 18.Bh5 Qc7+/–) 17...Ndf6 18.Bf1 Nh7 19.bc5 bc5 20.Rab1 a5 21.Rb5 a4 22.Rcb1 Ng5 23.Ng5 Bg5 24.Ra5 Qe6 25.Ra4 Ra4 26.Qa4 Qf6 (26...f5 27.Qd1 g6 28.ef5 Qf5 29.Qe2+/–) 27.Qd1 g6 28.h4 Ng3? (28...Bh4 29.gh4 Qh4+–) 29.hg5 (29.fg3?! Be3 30.Kh2 Ra8+–) 29...Qg5 30.fg3 Qg3 31.Bg2 h5 32.Qf3 Qf3 33.Bf3 Ra8 34.Ra1 Kg7 35.a4 Kf6 36.Bd2 h4 (36...Ra6 37.a5+–) 37.Kh2 (37.a5 g5+–) 37...g5 (37...Rb8 38.Kh3 Rb3 39.a5 Rd3 40.a6 Rf3 41.Kh4+–) 38.Kh3 (38.Rg1!? g4 39.Rg4 Ra4 40.Bg5 Ke6 41.Rh4 Kd7+–) 38...Kg6 39.Bg4 f6 40.a5 Kf7 41.a6 (better is 41.Rb1 Ra7+–) 41...Ke7 (41...Ra7+–) 42.a7 Kd8 (42...Kf7 43.Bd7 Kg6 44.Bc6+–) 43.Be6 Kc7 44.Bd5 (44.Ba5 Kb7 45.Rb1 Ka6 46.Bc7 g4 47.Kg2 h3 48.Kg3 f5 49.Bd5 f4 50.Kf2 g3 51.Kf3 Ra7 52.Ra1) 44...g4 45.Kg4 Rg8 46.Kh4 1–0. Fournier,Frederic – ronda2006, Active, 2008.

5.a3 Bf5 6.Nf3 Nbd7 7.Nc3 Be7 8.Be2 0–0 9.d4 c5 (9...c6!?=) 10.bc5+/– dc5 11.Ne5 cd4 12.Qd4 Bc5 13.Qf4 Bg6 (13...Qb6!? 14.Nd7 Bd7+/–) 14.Ng6 fg6 15.0–0 Qe7 16.Rfd1 Nh5? (better is 16...Rad8!?+/–) 17.Qc7+– Rf2 (17...Nhf6 18.Bf3 (18.Qb7?! Rab8 19.Rd7 Nd7 20.Qd5 Kh8=) 18...Ne5 19.Qb7 Nf3 20.Qf3+–) 18.Qd7 (better is 18.Kf2!? Qe3 19.Ke1 Rf8 20.Qc5 Nc5–+) 18...Qe3 19.Kh1 Rf7 20.Qg4 Nf4 21.Bf3 Re8 22.Qh4 (22.Bd5 Nd5 23.cd5 b5+–) 22...Nd3 (22...g5 23.Qg5 h6 24.Qh4+–) 23.Rd3! Qd3 24.Bd5 Qf5 25.Ne4 Kf8 26.h3 (26.Bf7 Re4 27.Qh7 Kf7 28.Qg7 Ke8 29.Qb7 Qe6 30.Qb8 Kd7 31.Rd1 Bd6 32.Rd6 Qd6 33.Qb7 Kd8 34.Bf6 Qf6 35.Qa8 Kc7 36.Qa7 Kd6 37.Qa6 Kc5 38.Qb5 Kd4 39.Qb2 Kc4 40.Qc2 Kb5 41.Qd3 Kc5 42.Qc2 Rc4–+) 26...Be3 27.Bc3 (27.Bf7?! Re4 28.Qh7 Qf7+/–) 27...g5 28.Bb4 Kg8 29.Qg3 Bf4 30.Qf3 Kh8 31.Ng5! Rf6 (31...Bg5 32.Qf5 Double attack (32.Qf5 Decoy); 31...Qg5 32.Bf7 Combination) 32.Qh5 Re3 33.Nf7 Rf7 34.Bf7 (34.Qf7 Rh3 35.gh3 Qh3 36.Kg1 Be3 37.Qf2 Qg3 38.Kh1 Bf2–+) 34...Bg5 35.Bd5 b5 36.Bc3 h6 37.Bd4 Re7 38.h4 bc4 39.Bc4 (39.Rd1!? c3 40.hg5 Qg5 41.Qg5 hg5+–) 39...Qc2 40.hg5 Qc4 41.Rb1 Qc8 42.gh6 Kg8 43.hg7 Rg7 44.Bg7 Kg7 45.Qg5 1–0. woschkat (1995) – awacs (1905), net–chess.com, 2001.

5.a4 Nc6 6.b5 ab5 (6...Nb4 7.Bc3 a5 8.d3+=) 7.ab5= Ra1 8.Ba1 Nb8 (8...Ne7 9.d4 ed4 10.Bd4=) 9.d4 Nbd7 (9...e4 10.Nc3=) 10.Nf3 e4 (10...Qe7 11.Be2=) 11.Nfd2 c6 (11...d5 12.Nc3=) 12.Nc3+= d5 13.c5 Be7 14.b6 0–0 15.Be2 Re8 (15...Nb8 16.0–0+=) 16.0–0 Nf8 17.Nb3 h6 (17...Be6 18.Bb2=) 18.Na5 (18.Bb2 Ng6+=) 18...Ne6 (18...Qd7 19.Bb2+=) 19.Qa4 (19.Bb2 Qd7+=) 19...Qd7= 20.Bb2 Ng5 21.Ra1 Rf8 (21...Ne6 22.Nb3+=) 22.Qd1 Ne8 (22...Qf5 23.Nb3+=) 23.Nb3+/– f5 24.Bc1 Ne6 ˝–˝. Nielsen,Joergen Axel – Joergensen,H, Nakskov, 1970.

5.a4 e4 6.Qb3 d5 7.Nc3 Be6 8.d4 Nc6 9.Ba3 dc4 10.Bc4 Bc4 11.Qc4 Qd7 12.Nge2 a5 (12...Bd6 13.0–0+=) 13.b5= Nb4 14.0–0 Bd6 15.d5 Qe7 (15...Qg4 16.Ng3 Be5 17.Bb4 Bg3 18.Ba5 Ra5 19.fg3+–) 16.Ng3 0–0? (better is 16...Be5!?=) 17.Nge4+/– Nc2? (17...Rfd8!?+/–) 18.Bd6 (18.Nf6 Qf6 19.Ne4 Bh2 20.Kh2 Qe5 21.Kg1 Na1+–) 18...cd6 19.Nf6 Qf6 20.Ne4 Qa1? (20...Qb2 21.Rfb1 Na3 22.Rb2 Nc4+–) 21.Ra1 (21.Qc2 Qe5+=) 21...Na1 22.Qc3 f5 (22...Rfd8 23.Qa1 Rac8 24.f3+–) 23.Nd6 (23.Qa1?! fe4 24.Qd4 Rae8+/–) 23...Rfd8 (23...Rf6 24.Nb7 Rf7+–) 24.Nf5 (24.Qa1 Rd6 25.f3 Re8+–) 24...Rd7 25.e4 g6 (25...Re8+–) 26.Nh6 Kf8 27.Qh8 (27.Qa1!? Rad8+–) 27...Ke7 28.Qa8 b6 29.Ng8 (29.Ng8 Kd6 30.Qc6 Ke5 31.f3+–) 1–0. Bendig,Frank – Fiedler,Reinhard, corr ICCF VI/VII Cp, 1988.

5.a4 Be7 6.d4+=.

5.a4 g6 6.Nf3 Bg4 (6...Bg7 7.d4=) 7.Be2 Bg7 8.Nc3 (8.0–0 Nc6=) 8...0–0 9.0–0 Nbd7 (9...c5 10.Qb3=) 10.h3 e4? (better is 10...Bf5=) 11.Ng5?? (better is 11.hg4 ef3 12.Bf3+–) 11...Be2+= 12.Qe2 (12.Ne2 h6 13.Ne4 Ne4 14.Bg7 Kg7 15.d3–+) 12...h6–/+ 13.Nge4 (13.Nce4!? hg5 14.Ng5–/+) 13...Ne4–+ 14.d4 Nc3 15.Bc3 Re8 16.Rfc1 c5 17.Qd2 (17.Qf3 Rb8–+) 17...cd4 (17...cb4 18.Bb4 Nf6 19.a5–+) 18.Bd4 Bd4 (18...Ne5 19.f4 Nc6 20.Bg7 Kg7 21.b5–+) 19.Qd4 Nf6 (19...Ne5 20.Qd5–+) 20.f3 (20.Qf4 a5–+) 20...Rc8 (20...a5 21.Rcb1–+) 21.Rd1 Re6 22.Ra2 (22.a5 Qc7 23.Rac1 Rce8–+) 22...Qe7 23.Rad2 (23.e4 Qc7 24.Rc2 a5–+) 23...Re3 24.Kf2 (24.a5 Qe6–+) 24...Re8 (24...Re6 25.Qf4–+) 25.g4?! (25.Qd6 Re2 26.Re2 Qe2 27.Kg1 Qc2–+) 25...Re2 (25...b5 26.ab5 ab5 27.cb5–+) 26.Re2 (26.Kg1–+) 26...Qe2 27.Kg3 Qe5 (better is 27...Re3 28.Qf6 Qd1–+) 28.Qe5 de5 (28...de5 29.c5 e4–+; 28...Re5?! 29.Rd6 Kg7 30.a5–+) 0–1. Dopper,Johan – Polderman, 1990.

5.Qc2 Bg4 6.Nf3 Bf3 7.gf3 Nbd7 8.Nc3 c5 9.b5 a5 10.h4 b6 11.Be2 Qe7 12.0–0–0 0–0–0 13.Bd3 g6 14.Be4 Ne8 15.Bc6 Nb8 16.Nd5 Qa7 17.Be8 Re8 18.f4 Bg7 19.h5 1–0. combijack (1765) – rodrigo89 (1680), gameknot.com, 2010.

5.Qc2 g6 6.d4= ed4 7.Bd4 Bg7 8.Nd2 0–0 9.Be2 (9.Ngf3 Nc6 10.Bc3 a5 11.ba5 Qe7=) 9...Re8 (9...Nc6 10.Bc3+=) 10.Nb3 (10.Bf3 Nc6 11.Bc6 bc6=) 10...Nc6 11.Bc3 Bf5 12.Qb2 Qe7 (12...Ne5 13.Be5 Re5 14.Nd4–/+) 13.Nf3= Nh5 (13...Ne5 14.Ne5 de5 15.f3=) 14.Nfd4 Nd4 (14...Qg5 15.h4 Qh6 16.Nf5 gf5 17.b5+=) 15.Nd4 Bd7 (15...Be4 16.Bh5 gh5 17.Nf3=) 16.Bh5+= gh5 17.0–0–0 (17.0–0 Qe4+=) 17...b5 (17...a5 18.b5=) 18.cb5 (18.Ne2 Be5=) 18...ab5 (18...Bd4 19.Rd4 ab5 20.Kd2=) 19.Nb5+= White fights for the Initiative 19...Bc3 (19...Bb5 20.Bg7 Qe6 21.Bh8=) 20.Nc3+/– Be6 21.Nd5 Bd5 22.Rd5 f6 (22...Qe4 23.Rg5 Kf8 24.a3+=) 23.Rhd1 (23.Kd1 Qe4 24.Qb3 Kf8+/–) 23...Qe6 (23...Qe4 24.b5+/– (24.Qf6 Qc4 25.Kb1 Qa2 26.Kc1 Qc4 27.Kb1 Qb4 28.Qb2 Qe4 29.Kc1 Qc4 30.Qc2 Ra1 31.Kd2 Qd5 32.Ke2 Rd1 33.Qd1 Qg2–+)) 24.Qb3 (24.R1d2 Reb8+/–) 24...Kh8 (24...h4 25.b5+/–) 25.R1d2 Qg4 (25...h4 26.R5d3 Qe4 27.Qc3+–) 26.f3 (26.Qc3 Rf8 27.f3 Qh4+–) 26...Qg5?? (better is 26...Qh4+/–) 27.Rg5+– (27.Rg5 fg5 28.Qc3 Kg8 29.Qc4 Kh8 30.Qd4 Kg8 31.Rc2+–) 1–0. Andersson,Lars H – Engberg, Sweden, 1987.

5.Nc3 g6 6.Nf3= Bg7 7.Be2 Bd7 8.0–0 Nc6 9.a3 0–0 10.d4 ed4 11.ed4 Re8 12.Re1 Rb8 13.h3 Re7 14.d5 Na7 15.Qd4 Nc8 16.Qh4 Qf8 17.Bd3 Re1 (17...Nh5 18.c5+=) 18.Re1+/– Nh5 19.g4 White fights for the Initiative 19...Bf6 20.g5 Bg7 21.Nd4 (21.Re3 f6+=) 21...Be5 (21...Bh3 22.Qh3 Bd4 23.Re4=) 22.Nce2 Ne7 23.f4 Bd4 (23...Bg7 24.Bc3+=) 24.Nd4+/– (24.Bd4?! Bf5 25.Bb1 Bb1 26.Rb1 Nf5=) 24...Ng7 25.Nf3 Nef5 26.Qf2 Nh5 27.Nh2 Nhg3? (better is 27...Re8+/–) 28.Ng4+– Nh5 (28...Qc8+–) 29.Bf5 Bf5 30.Nh6 (30.Nh6 Qh6 31.gh6+–) 1–0. Margraf – Mallinowski, (year?).

5.Nc3 h6 6.d3 (6.Nf3 c5=) 6...Nc6 (6...Be7 7.Nf3=) 7.a3 Bf5 (7...Be7 8.Nf3=) 8.Nf3 d5? (better is 8...a5 9.b5 Ne7+=) 9.cd5+– Nd5 10.Nd5 Qd5 11.e4 Be4 12.de4 Qe4 13.Qe2 Qe2 14.Be2 e4 (14...f6 15.Bd3+–) 15.Nd2 f5 16.0–0 (16.g4!? fg4 17.Bg4 Rd8+–) 16...0–0–0 (16...h5 17.Rad1+–) 17.Nb3 (better is 17.Rad1+–) 17...b6? (better is 17...Rh7+–) 18.Ba6 Kb8 19.Rac1 Na7 (19...Rd6 20.Rfd1 Rd1 21.Rd1+–) 20.Nd4 1–0. Wall,Bill – Skaki, internet, 2006.

5.d3 Nbd7 6.Nf3= Be7 7.Be2 0–0 8.Nbd2 c6 9.a4 (9.0–0 Qc7=) 9...a5 10.b5 c5 (10...Re8 11.0–0=) 11.0–0 b6 (11...Qc7 12.Qc2=) 12.d4+= Qc7 13.d5 (13.Bd3 ed4 14.ed4 cd4 15.Bd4 Re8+=) 13...h6 (13...Re8 14.Qc2+=) 14.Qc2 Re8 (14...Bb7 15.Bd3+=) 15.Bd3 Nf8 16.h3 Bd7 17.Nh2 g6 (17...Bc8 18.f4+=) 18.f4+/– Kg7 (18...Rad8 19.Rad1+/–) 19.Nhf3 Bd8 (19...ef4 20.ef4 Bc8 21.Rae1+–) 20.f5 (better is 20.fe5!? de5 21.Qc3+–) 20...g5+/– 21.g4 (21.Rad1 g4 22.hg4 Ng4+=) 21...N8h7 (21...Be7 22.Rae1+=) 22.Ne4 (22.Rae1 Be7+=) 22...Ne4 23.Be4 Nf6 24.Kf2 (24.Bd3 Rh8+=) 24...Rh8 (24...Ne4 25.Qe4 Bf6 26.Kg2=) 25.Rh1 (25.Bd3 Be7+=) 25...Be7 (25...Ne4 26.Qe4 Bf6 27.h4+=) 26.Rag1 (26.Bd3 Rag8+=) 26...Ne4= 27.Qe4 f6 (27...Rae8 28.Ke1+=) 28.Nd2 (28.h4 Rae8+/–) 28...Rh7 (28...Rag8 29.h4+=) 29.Qf3 (29.h4 Rhh8+/–) 29...Rah8+= 30.h4 Be8 (30...Bc8 31.Ke1+/–) ˝–˝. Metschan,Helmuth – Kudoke,Willy, 9sen.WttgEM/Ellwangen, 1997 (aka Metschan,Helmuth (1845) – Assmann,Siegfried (1885), Wuerttemberg–ch Seniors 9th, 1997)

5.d3 h6 6.Nf3= Bg4 7.Be2 c6 8.Qb3 (8.0–0 Be7=) 8...Nbd7 9.Nbd2 Be7 10.0–0 0–0 11.a4 (11.h3 Be6=) 11...Re8 (11...a5 12.b5=) 12.h3 (12.a5 Rb8=) 12...Bh5 (12...Be6 13.a5=) 13.Rfd1 (13.a5 Rb8=) 13...Bf3 (13...a5 14.b5=) 14.Bf3+= (worse is 14.gf3 a5+=) 14...d5 15.cd5 cd5 16.Bd5 Nd5 17.Qd5 b6 (17...Bb4 18.Qb7 Rb8 19.Qc6+=) 18.b5 (18.Bc3 Nf6 19.Qd8 Rad8 20.Be5 Rd3+/–) 18...a5 (18...Nc5 19.Qd8 (19.Qe5 Bf6 20.Qf5 Bb2–/+) 19...Red8 20.d4 (20.Be5?! Rd3 21.Kf1 ab5 22.ab5 Ra1 23.Ba1 Nb3+/–) 20...ed4 21.Bd4 ab5 22.ab5 Ra1 23.Ra1+/– (worse is 23.Ba1 Nb3–/+)) 19.Nf3 (19.d4 Bb4+–) 19...Bf6 20.e4 (20.d4 ed4 21.Nd4 Ne5 22.Qd8 Rad8+–) 20...Rc8 (20...Nc5 21.Qc4+/–) 21.d4 ed4 22.Nd4 (22.Bd4 Bd4 23.Rd4+/–) 22...Bd4? (better is 22...Rc5 23.Qd6 Re4+=) 23.Qd4+– f6?? (better is 23...Nf6+–) 24.Qd7 Qd7 25.Rd7 Re4 26.Rb7 (26.Bd4 Rc4 27.Bb6 Kh7 28.Ba5 Ra4 29.Ra4 Ra4+–) 26...Re6? (26...Rc2 27.Rb8 Kf7+–) 27.Kf1 (better is 27.Bd4!? Rce8+–) 27...Rce8 (27...Rc4+–) 28.Bd4 1–0. Goldmund,Heike – Bromo,Alexis, FICGS, 2015.

5.d4 e4 6.Nc3 Bd7 7.Qc2 d5 8.cd5 Bb4 9.0–0–0 Bc3 10.Bc3 Nd5 11.Qe4 Be6 12.Bb2 0–0 13.Bd3 Nf6 14.Nf3 Ne4 15.Be4 Bd5 16.Bd5 Qd5 17.Rd2 Nc6 18.Rhd1 Nb4 19.a3 Qc6 20.Kb1 Qg6 21.Ka1 Qg2 22.Ne5 Nd5 23.f3 Qh3 24.e4 Nf4 25.d5 f6 26.Nd3 Qf3 27.Nf4 Qf4 28.Re2 Rfe8 29.Rde1 Re7 30.e5 Rd8 31.ef6 Re2 32.Re2 Qf1 0–1. chessleon (2165) – manumisra (2605), net–chess.com, 2014.

5.Be2 c6 6.Nf3 (6.Nc3 Bf5+=) 6...Be7 (6...e4 7.Nd4+=) 7.Nc3 Bf5 8.0–0 0–0 9.a4 Nbd7 10.d3 d5 11.Qb3 (11.cd5 cd5 (worse is 11...Nd5 12.Nd5 cd5 13.Ne5+/–) 12.Qb3 Qb8=) 11...dc4 (11...a5 12.ba5 Nc5 13.Qb6 Bd3 14.Ne5 Be2 15.Ne2 Ra5 16.Qd8 Rd8 17.Nd4 Ra4 18.Ndc6 bc6 19.Nc6+=) 12.dc4+= Qb8 (12...Qb6 13.Ba3 a5 14.b5=) 13.Rfd1 e4 (13...a5!? 14.Ba3 Qc7=) 14.Nd4+= Ng4? (better is 14...Bg6+=) 15.g3+– (15.Nf5?? Qh2 16.Kf1 Qh1#) 15...Nh6?? (15...Qe5 16.Ne4 c5 17.Nf5 Qf5+–) 16.Nf5 Nf5 17.Rd7 Rd8 18.Rd8 Qd8 19.Rd1 Qc7 (19...Qc8 20.Ne4 Qf8 21.c5+–) 20.Ne4 (better is 20.Bg4 Nh6 21.Rd7+–) 20...Nd6 (20...Rd8+–) 21.Be5 Rd8 22.c5 Qd7 23.Bd6 (better is 23.cd6!? Bf8 24.Nc5 Qf5 25.Nb7 Rd7+–) 23...Bd6 24.Rd6 Qc7 25.Qd3 Rd6 26.Qd6 Qd6 27.cd6 Kf8 28.Nc5 b5 29.a5 Ke8 30.Bg4 1–0. Pittner,Stefan (1650) – Wuketich,Stefan, Wien AUT, 7th Kavalier Open, 2012.

5.Be2 Be7 6.d3 Bd7 7.Nd2 b5 8.Qc2 Bc6 9.Ngf3 Nbd7 10.h3 Nb6 11.c5 Na4? (better is 11...Nbd5 12.a3 Rc8+=) 12.cd6+– Qd6 13.Be5 Qd7 14.Rc1 Bf3? (14...Bd5 15.e4 (worse is 15.Qc7 Qc7 16.Rc7 Ba2+/–) 15...Bb7 16.Qc7+–) 15.Bf3 (15.Nf3?! Bb4 16.Nd2 c5+=; 15.gf3?! Nd5 16.Bg7 Rg8+/–) 15...0–0? (15...Nd5 16.a3 0–0+–) 16.Ba8 Ra8 17.a3 Ne8 18.Qc6 (18.Bc7?! Rc8 19.0–0 Rc7+=) 18...Qd8 19.0–0 (19.Bc7?! Nc7 20.Qc7 Nb2+–) 19...Nb2 (19...Bd6 20.Bd4 Nb6+–) 1–0. Eckhoff,Karlheinz (1770) – Trink,Hugo, Raika op 7th, 1998.

5.Nf3 b5 6.a3 bc4 7.Bc4 d5 8.Bb3+= e4 9.Nd4 c5 10.bc5 Nc6?? 11.Nc6+– Qc7 12.Bf6 Qc6 13.Bd4 Bd7 14.Qc2 Be7 15.0–0 0–0 16.d3 ed3 17.Qd3 Be6 18.Rc1 Rad8 19.Nd2 g6 20.Nf3 f6 21.Bd1 Rb8 22.Rab1 Rb1?? 23.Rb1 Bf5 24.Rb6 Qb6 25.Qd2 Bc5–/+ 26.h3 Bd4 27.Nd4 Re8 28.Nf5+= gf5 29.Qd5 Qe6? 30.Bb3?? Qd5= 31.Bd5 Kg7 32.a4 Re5 33.Bb7 a5 34.Bc6 Rc5 35.Bb5 Rc1 36.Kh2 Kg6 37.g4 fg4–/+ 38.hg4 Kg5 39.f3? Re1 40.e4 Kf4 41.Kg2 Rd1 0–1. valpa – googleforu, playchess.de, 2002.

5.Nf3 c6 6.Nc3 Be7 7.Bd3N 0–0 8.0–0 Bg4 9.h3 Bf3 10.Qf3 Nbd7 (10...d5 11.cd5 cd5 12.e4 de4 13.Ne4+=) 11.a3 Rb8 12.Be2 Qc7 13.d4 e4 (13...Rfe8!?+/–) 14.Ne4+– Ne4 15.Qe4 Nf6 16.Qf3 d5 17.cd5 (17.Bd3 g6+–) 17...cd5+/– 18.Rfc1 Qd6 19.Bd3 Rbc8 20.Rc5 b6 (20...Qb6 21.Qf5 Rce8 22.Rc2+–) 21.Rc3 (21.Rc8 Rc8 22.Qf5 Rc7+–) 21...Rc3+/– 22.Bc3 Rc8 (22...b5 23.Bd2+–) 23.Bd2+– b5 24.a4 ba4 25.Ra4 Qc6? (better is 25...Rc6!?+–) 26.Ra6 Qd7? (26...Qb7 27.b5 Ne4+–) 27.Bf5 Qb7 28.Bc8 Qc8 29.b5 Qc2 (29...Ne4 30.Qe2 g6+–) 30.Ra8 Bf8 31.Qe2 (better is 31.Qg3 Qd2 32.Qc7+–) 31...Ne4 (31...Qb1 32.Qf1 Qb3+–) 32.Rf8! Kf8 33.Bb4 Ke8 34.Qc2 1–0. pierre – nifixab, internet, 2010.

5.Nf3 Nbd7 6.Nc3= c5 (6...e4 7.Ng5 a5 8.Nge4 ab4 9.Nf6 Nf6 10.Nd5 Nd5 11.cd5=) 7.b5 (7.bc5 e4 8.Ng5 Nc5=) 7...Be7 (7...ab5 8.Nb5 e4 9.Nh4+=) 8.a4 (8.ba6 Ra6 9.Bd3 0–0=) 8...a5 (8...ab5!? 9.Nb5 e4+=) 9.Be2 Nb6 (9...0–0 10.0–0=) 10.0–0 0–0 11.Qc2 (11.d4 ed4 12.ed4 d5 13.Nd5 Nbd5 14.cd5 cd4 15.Qd4 Qd5+=) 11...Bg4 12.d3 Qc7 13.Nh4 Qd7 (13...d5 14.Nd5 Nfd5 15.Bg4–+) 14.f4 Be2 15.Ne2 (15.Qe2 ef4 16.Rf4–/+) 15...Ng4–+ 16.Nf3 Ne3 17.Qc3 (17.Qb3 Nf1 18.Rf1 Bf6–+) 17...Nf1 18.Rf1? (18.Kf1 Rfe8 19.fe5 de5 20.Ne5 Qf5 21.Nf3–+) 18...Na4 19.Qc2 (19.Qd2 Nb2 20.Qb2 Qf5–+) 19...Nb2 20.Qb2 ef4 21.Nf4 Bf6 22.Qb1 a4 23.Nd5 Qd8 24.Nd2 (24.Qa2 Re8–+) 24...Bd4 25.Kh1 a3 26.Nb3 (26.Qa2–+) 26...a2 27.Qc2 a1Q 28.Na1 Ra1 29.Ra1 Ba1 30.g3 (30.Qf2 Re8–+) 30...Re8 31.Kg2 Bd4 32.Qd1 Qa5 33.Qg4 (33.b6 Qa2 34.Kh1 Qf2–+) 33...Qd2 34.Kh3 Qe2 (better is 34...Bg1 35.Qf5–+) 35.Ne7 (35.Qe2 Re2 36.b6–+) 35...Qe7 36.Qf3 0–1. Dopper,Johan – Stoel,SJ, 1991.

5.Nf3 g6 6.Nc3 (6.Bd3 Bg7=) 6...Bg4 (6...Bg7 7.Bd3=) 7.h3 (7.Qa4 Nc6+=) 7...Bf3 (7...Bd7 8.b5+=) 8.Qf3+/– c6 (8...Nc6 9.a3+/–) 9.Bd3 (9.Be2 Nbd7+/–) 9...Bg7 10.h4 (10.0–0 0–0+=) 10...0–0 11.h5 Nh5 12.Rh5 (12.g4 Nf6 13.g5 e4+/–) 12...gh5 13.Qf5 (13.Qh5 h6=) 13...Re8= 14.Qh7 (worse is 14.Qh5 e4 15.Bc2 Nd7+=) 14...Kf8 15.Ne4 White prepares c5 (better is 15.Bf5=) 15...Bf6? (better is 15...Nd7=) 16.c5 Re6 (better is 16...dc5 17.Bc4 Bg7 18.bc5 Nd7 19.Qh5 Re7+–) 17.cd6 Rd6 18.Bc4 Re6 (18...Rd5 19.Qh5 Nd7+–) 19.Be6 fe6 (19...Qe7 20.Bb3 Bg7 21.Qf5+–) 20.Nf6 Qf6 21.Qb7 Nd7 22.Qa8 Ke7 23.Qa6 Qh4 24.Rc1 Qh1 25.Qf1 Qh4 26.Rc4 Qg5 27.Rc6 Qf5 28.Qc4 1–0. Janek – Indy, internet free game, 2017.

5.h3 Be7 6.Qc2 b6 7.Nf3 Bb7 8.a4 (8.Be2 0–0+=) 8...Nbd7 9.Be2 0–0 10.g4 (10.d3 Re8+=) 10...Be4 (10...e4!? 11.Nd4 Ne5–/+) 11.d3+= Bg6 12.Nh4 c5 13.Ng6 fg6 14.b5 ab5 15.cb5 (15.ab5? Ra1 16.Ba1 Qa8–+) 15...Ne8 16.Nd2 Bh4 Exerts pressure on the backward pawn 17.Rf1 Kh8 18.Bf3 Ra7 19.Bc6 Nb8 20.Bd5 Nf6 21.Bg2 Re7 (21...Raf7!?=) 22.Nf3+/– g5 23.0–0–0 (23.Nh4!? gh4 24.g5+/–) 23...Rc7 24.Kb1 Nd5 (24...Qe7 25.Nh4 gh4 26.f4=) 25.Qc4 (25.Nh4 Nb4 26.Ng6 hg6+/–) 25...Nf6 (better is 25...Nb4!?=) 26.Nh4+/– gh4 27.f4 d5 28.Qa2 ef4 29.Rf4 Qd6? (better is 29...d4!? 30.ed4 Nbd7+/–) 30.Rdf1 Nbd7 (better is 30...d4 31.g5 Nfd7+–) 31.Rf5?? (31.g5 d4 32.gf6 Rf6+–) 31...Rcc8? (better is 31...d4 32.g5 de3 33.gf6 Qd3 34.Ka1 Nf6+=) 32.g5+– Nh5 (32...Ng8 33.Qd5 Qd5 34.Rd5 Rf1 35.Bf1 Rd8+–) 33.Qd5 (33.Bd5?! Rf5 34.Rf5 Ng3+=) 33...Qe7 (33...Qd5 34.Bd5 Rf5 35.Rf5 Rf8 36.Rf8 Nf8+–) 34.Rf7 (better is 34.Qd7! Qd8 35.Rf8 Qf8 36.Rf8 Rf8 37.Qd6+–) 34...Rf7 35.Rf7 Qe8 (35...Qe3 36.Qd7 Rg8+–) 36.Be4 (better is 36.Qd7 Qd7 37.Rd7 Kg8+–) 36...Rd8 (36...Ne5 37.Rb7 Ng6+–) 37.Qf5 Ndf6 (37...Qg8+–) 38.gf6 Nf6 (38...Kg8 39.fg7 Rd4 40.Qh7 Kf7 41.g8Q Kf6 42.Qe8 c4 43.Qhg6) 39.Bf6 1–0. Karlsen,Jan M – Haugan,Kristoffer, Sandefjord MGP, 2003.

5.a3 Be6

6.Nf3 Be7 7.Be2 0–0 8.0–0 Nbd7 9.d3 c6 10.Nbd2 Qc7 11.Ng5 d5 12.Ne6 fe6 13.cd5 ed5 14.Nf3 Bd6 Black plans e4 15.h3 e4 16.de4 Ne4 (worse is 16...de4 17.Ng5+/–) 17.Qd4 Rf7 18.Rad1 Raf8 19.Bd3 Re8 20.Be4 Re4 21.Qc3 h6 22.Nd2 Re6 23.Rc1 Rg6 24.Nb3 (24.Qd3 Rg5=) 24...Ne5 25.Nc5?? (better is 25.Nd4+=) 25...Nf3–+ 26.Kh1 Bc5 27.bc5 (27.g3 Rg3! 28.fg3 Qg3 29.Qg7 Rg7 30.Rf2 Qh3 31.Rh2 Qh2) 27...Qh2 0–1. Fournier,Frederic (1850) – kkkkkkk (1635), Active, 2007.

6.Nf3 h6 7.Be2 Be7 8.Qc2 Qd7 9.0–0 b5 10.cb5 ab5 11.Nc3 c5? (better is 11...c6=) 12.Bb5+– (worse is 12.Nb5 0–0+/–) 12...Nc6 13.d4! cd4? (13...cd4 14.ed4 Combination; 13...ed4 14.ed4 Combination) 14.Ne4 (better is 14.Na4 Rc8 15.Nb6+– (15.ed4?! 0–0+–)) 14...Ne4?? (better is 14...Rc8 15.Nf6 Bf6+–) 15.Ne5 (better is 15.Bc6!? Nf6 16.ed4 e4+–) 15...Bb3 (15...de5 16.Bc6 Nc3 17.Bd7 (17.Ba8?! 0–0 18.Be4 Ne4 19.Qe4 Bf6 20.ed4 ed4+–) 17...Bd7 18.Rfe1+–) 16.Qc6 Nf6 (16...Qc6 17.Bc6 Kd8 18.Ba8 Nd2+–) 17.Qa8 (17.Qa8 Bd8 18.Bd7 Nd7 19.Nc6+–) 1–0. Bonetti,Shane (2180) – Martindale,Roger, OP–2010–0–01222, 2010.

5.a3 Be7

6.Nc3 0–0 7.Nf3 Bg4 8.h3 White gets the initiative 8...Bh5 9.g4 Bg6 10.Nh4 Nbd7 11.Ng6 hg6 (11...fg6 12.Bg2 c6 13.d4=) 12.h4 c5 13.h5 gh5? (better is 13...g5+/–) 14.g5+– (14.g5 cb4 15.gf6 Nf6 16.ab4+–; worse is 14.gh5 cb4 15.ab4 Qb6+/–) 1–0. Woelfelschneider,Peter – Schaefer, 2008.

6.Be2 0–0 7.d3 c5 8.bc5 Qa5 9.Nd2 Qc5 10.Ngf3 Nc6 11.0–0 Bg4 12.h3 Bh5 13.Nh4 (13.Rb1 Qa5=) 13...Be2= 14.Qe2 Rfe8 15.Nf5 Bf8 16.Ng3 (better is 16.Qf3+=) 16...g6?? (16...d5!?=) 17.Qf3 (better is 17.Nde4!? Ne4 18.Ne4+– (worse is 18.de4 Na5+=)) 17...Bg7 18.Nde4 Qb6 19.Nf6 Bf6 20.Qf6 Qb2 21.Ne4 (worse is 21.Qd6 Re6 22.Qd5 Rd8+=) 21...Re6 22.Qh4 f5? (22...h5 23.Rfb1 Qe2 24.Nf6 Kg7 25.Nd5+/–) 23.Rab1 (better is 23.Rfb1!? Qe2 24.Nf6 Kg7 25.Rb7 Re7 26.Re7 Ne7 27.Nh5 Qh5 28.Qe7 Kh6 29.Qd6 Qe2+–) 23...Qa3+/– 24.Rb7 h5 (24...Re7 25.Nf6 Kg7 26.Re7 Ne7 27.Nh5 Kf8 28.Qf6 Ke8 29.Ng7 Kd7+–) 25.Nf6 Kf8 26.Qg5 Ne7 27.Nd5 Ng8 28.Nc7 Re7 (28...Rae8 29.Ne8 Re8 30.Qg6+–) 29.Qg6 (29.Qg6 Rd7 30.Ne6 Ke7 31.Qg7 Ke6 32.Qd7 Kf6 33.Qg7 Ke6 34.Qf7; 29.Na8?! Rb7 30.Nc7 Kf7+– (30...Qd3?? 31.Ne6 Ke8 32.Qg6 Ke7 33.Qg8 Qc4 34.Qh7 Ke6 35.Qb7+–)) 1–0. De Kruif,Kees (2075) – Manetto,Luis, Gibraltar Challengers Week2, 2007.

6.Nf3 e4 7.Nd4 Nc6 (7...c5!? 8.Nc2 cb4 9.Nb4 0–0=) 8.Nc6+= bc6 9.d3 0–0 10.de4 Ne4 11.Nd2 Bf5 12.Ne4 Be4 13.f3 Bg6 14.Bd3 Bf6 15.Bf6 Qf6 16.Bg6 fg6 17.0–0 Rad8 18.Qd4 Kh8 19.Qf6 Rf6 20.e4 h5 21.h3 c5 22.Rfd1 g5 (better is 22...cb4!? 23.ab4 Rb8+/–) 23.bc5+– Re6 24.cd6 Rdd6 25.Rd6 Rd6 26.Kf1 (26.Rb1 Kg8+–) 26...Rd4+/– 27.Rc1 Rd3 28.Rb1 Ra3 29.Rb8 Kh7 30.Rb7 (30.Rc8!?+/–) 30...c5 31.Rc7 Ra5 32.Rc6 g6 33.e5 Kg7 34.Rc7 Kf8 35.e6 Ra1 36.Ke2 Ra2 37.Kf1 Ra1 38.Kf2 Ra2 39.Kg3 h4 40.Kg4?? (better is 40.Kh2+=) 40...Re2 (40...Rg2) 41.Kg5+– Re6 42.Kh4 Re2 43.g3 Rc2 44.Rc5 Ke7 45.Kg5 Ra2 (45...Rc3 46.h4+–) 46.Kg6 a5 47.h4 a4 (47...Ra3 48.Rf5 a4 49.h5+–) 48.h5 a3 (48...Rf2 49.h6 Rf3 50.Re5 Kd6 51.h7+–) 49.h6 Rh2 50.Ra5 a2 51.h7 Kd6 52.Kg7 Kc6 53.h8Q Kb6 (53...Rh8 54.Kh8 Kd7+–) 54.Qh2 (54.Qd8 Kc6 55.Qc8 Kd6 56.Rd5 Ke7 57.Qd7) 54...Ka5+– 55.Qa2 Kb6 1–0. Fournier,Frederic – DIOSDEGUERRA, Active, 2007.

5.a4 Bf5

6.Qb3 A) 6...Be7 A1) 7.Nf3 Nc6 (7...0–0 8.Be2 a5 9.ba5 Qc8 10.0–0 Nc6) 8.Be2 Bg4 9.d3 0–0 10.0–0 Re8; A2) 7.Be2 Nc6 (7...0–0 8.Nf3 a5 9.ba5 Qc8 10.0–0 Nc6; 7...e4 8.f3 Nc6 9.fe4 Ne4 10.d3 Nf6) 8.Nf3 Bg4 9.d3 d5 10.b5 ab5; A3) 7.Ne2 Nc6 (7...0–0 8.d4 d5 9.Ng3 Be6 10.de5 dc4; 7...Be6 8.d4 a5 9.ba5 Nc6 10.Bc3 Bc8; 7...Nbd7 8.d4 Bg6 9.Nbc3 0–0 10.Rd1 ed4) 8.d4 d5 9.c5 ed4 10.Nd4 Nd4; B) 6...Nc6 B1) 7.Be2 a5 (7...d5 8.c5 a5 9.Bb5 ab4 10.Nf3 Bc5; 7...e4 8.b5 Ne5 9.Bd4 Be7 10.Nc3 c5) 8.b5 Nb4 9.Na3 Be7 10.Nf3 0–0; B2) 7.Nf3 Be7 (7...e4 8.Nd4 Nd4 9.Bd4 Be7 10.Be2 0–0; 7...Bg4 8.Nc3 Bf3 9.gf3 Be7 10.Rg1 0–0) 8.Be2 0–0 9.0–0 a5 10.b5 Nb4.

6.b5 ab5 7.ab5 (7.cb5 c5 (7...Be7 8.d4 Nbd7 9.a5 0–0 10.a6 ba6; 7...Nbd7 8.d4 ed4 9.Bd4 d5 10.a5 Ne4; 7...Ra7 8.d4 Nbd7 9.a5 Be7 10.Nd2 e4) 8.bc6 Nc6 9.Nf3 Be7 10.Bb5 0–0) 7...Ra1 8.Ba1 c6 (8...Nbd7 9.Nc3+= Be7 10.Qf3 Qa8; 8...Be7 9.Nf3 c6 10.Nc3 Nbd7) 9.bc6 (9.d4 e4 10.d5 cb5) 9...Nc6 (9...bc6 10.d4 Nbd7) 10.Nf3 (10.d4 Qd7) 10...Be7 11.Be2 0–0 12.0–0 Qa5 13.Nc3 (13.Bc3 Qc7=) 13...Nb4 (13...e4 14.Nd4 Nd4 15.ed4=) 14.Qa4 (14.Nb5 Bc2 15.Qc1 Qa4=) 14...Qa4+= 15.Na4 Nc2 16.Bc3 Ra8 17.Nb2 Ne4 (17...Ra2 18.Rc1 Na3 19.Kf1+=) 18.Bd3= Nc3 (18...Na1 19.Bb1=) 19.Bf5 Ne2 (19...Ra2!? 20.Bc2 Rb2 21.Bh7 Kh7 22.dc3 Bf6+=) 20.Kh1+/– Ra1 21.Ra1 Na1 22.Ng1 (22.Be4 b6+=) 22...Ng1 (22...Nc1 23.h3=) 23.Kg1+= Nb3 24.d3 Kf8 25.Na4 (worse is 25.Bh7 g6–/+) 25...Nc5 26.Nc5 dc5 ˝–˝. valpa – rchessmaster, playchess.de, 2003.

6.b5 Nbd7 A) 7.Nc3 Nc5 (7...ab5 8.ab5 Ra1 9.Ba1 Be7 10.Qf3 Qa8) 8.d3 Be7 9.d4 ed4 10.ed4 Ne6; B) 7.Nf3 Be7 8.Be2 ab5 9.ab5 Ra1 10.Ba1 c6; C) 7.d4 Be7 (7...ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nd2 0–0; 7...e4 8.Ne2 d5 9.ba6 ba6 10.cd5 Nd5; 7...ed4 8.Bd4 ab5 9.ab5 Ra1 10.Ba1 Be6) 8.Nc3 ed4 9.ed4 ab5 10.ab5 Ra1.

6.b5 Be7 A) 7.Nc3 ab5 (7...0–0 8.Qf3 Bc8 9.Nge2 Nbd7 10.d4 ab5; 7...Qd7 8.d4 0–0 9.Nge2 Re8 10.Ng3 Bg4; 7...Bg6 8.d4 ed4 9.ed4 d5 10.Qf3 Bh5) 8.ab5 Ra1 9.Ba1 Nbd7 10.Qf3 Qa8; B) 7.d3 Qd7 (7...0–0 8.Nc3 Be6 9.Nf3 Nbd7 10.Be2 ab5; 7...c6 8.d4 Nbd7 9.Nc3 ed4 10.ed4 0–0; 7...Be6 8.d4 ed4 9.Bd4 0–0 10.Nf3 ab5) 8.Nd2 0–0 9.Ngf3 ab5 10.ab5 Ra1; C) 7.d4 e4 (7...Nbd7 8.Nc3 ed4 9.ed4 ab5 10.ab5 Ra1) 8.Ne2 ab5 9.Ng3 Bg4 10.f3 ef3.

6.d4 Nc6 A) 7.b5 Nb4 8.Na3 ab5 9.cb5 e4 10.Nc4 d5; B) 7.Bc3 Ne4 (7...ed4 8.ed4 Ne4 9.Qf3 Nc3 10.Qc3 d5) 8.b5 ed4 9.bc6 dc3 10.cb7 c2; C) 7.Qb3 ed4 (7...d5 8.de5 Ne4 9.cd5 Bb4 10.Bc3 Nc5) 8.ed4 a5 9.ba5 Na5 10.Qf3 Bg4.

6.Nf3 Nc6 A) 7.Qb3 Be7 (7...e4 8.Nd4 Nd4 9.Bd4 Be7 10.Be2 c5; 7...Bg4 8.Nc3 Bf3 9.gf3 Be7 10.Rg1 0–0) 8.Be2 e4 9.Nd4 Nd4 10.Bd4 0–0; B) 7.b5 Nb4 (7...ab5 8.ab5 Ra1 9.Ba1 Nb8 10.Be2 Be7) 8.d3 ab5 9.ab5 Ra1 10.Ba1 e4.

5.Qc2 Be7

6.Be2 Be6 7.Nf3 0–0 8.Nc3 Nc6 9.a3 Ng4 10.0–0 Qd7 11.Nd5 Bd8 12.Rac1 Ne7 13.Ne7 Be7 14.d4 ed4 15.Nd4 c6 16.Ne6 Qe6 17.Bg4 Qg4 18.h3 Qd7 19.Rfd1 f6 20.Qe2 Rfc8 21.c5 d5 22.e4 Re8 23.Qc2 Rad8 24.ed5 cd5 25.c6 bc6 26.Qc6 Qc6 27.Rc6 Rd6 28.Rd6 Bd6 29.Kf1 Be5 30.Be5 Re5 31.a4 g5 32.b5 ab5 ˝–˝. rayfranke (2470) – ramesis (2335), net–chess.com, 2014.

6.Nf3 =+.

5.Nc3 c6

6.a4 Bf5 7.Nf3 h6 (7...Qb6 8.b5=) 8.d4 e4 9.Nd2 Bg6 (9...Nbd7 10.Be2=) 10.Be2+= Nbd7 11.0–0 Be7 (11...d5 12.c5+=) 12.f3 ef3 13.Bf3 0–0 (13...Bd3 14.Rf2+=) 14.e4 (14.a5 Bd3 15.Rf2 Re8+=) 14...c5 (14...Qb6!? 15.Na2 a5=) 15.bc5+= dc5 16.Nd5 (16.e5 cd4 17.ef6 Bf6+–) 16...cd4 17.Bd4 Bc5 18.Nb3 Bd4 19.Qd4 Nd5 (19...Re8 20.Rae1=) 20.ed5+= Qb6 (20...b6!?+=) 21.Qb6+/– Nb6 22.c5 Nc4 (22...Nd7 23.d6 Rab8 24.Rfe1+–) 23.d6 Rab8 24.Rfe1 b5 25.ab5 ab5 26.Ra7 Bc2 27.Nd4 Ba4 28.Bd5 Nb2 29.Ree7 Nd3 30.Rf7 Rf7 31.Bf7 (worse is 31.Rf7 Kh7 32.Nc6 Ra8 33.Be4 Kg8+–) 31...Kh7 32.c6 Ne5 33.Bd5 b4 (33...Rf8 34.Be4 Kh8 35.Ne6+–) 34.Re7 (better is 34.Ra4 Kg6 35.c7 Nd7+–) 34...Nc6 35.Nc6 Bc6 36.Bc6 b3 37.Be4 Kg8 38.d7 (better is 38.Bd5 Kf8 39.Rf7 Ke8 40.d7 Kd8 41.Rf8 Kd7 42.Rb8+–) 38...b2 (38...Kf8 39.Re6 b2+–) 39.Re8 Re8 40.de8Q 1–0. Fredek (2090) – Guest100100, Freundschaftspartie, 5m + 0s, 2005.

6.Nf3 Be7 7.Be2 =.

6.Nf3 h6 7.Be2 Be7 8.0–0 0–0 9.d3 b5 10.cb5 ab5 11.a4 ba4 12.Ra4 Na6 (12...Ra4 13.Qa4 Be6 14.Ra1=) 13.Qa1 (13.e4+=) 13...d5 (better is 13...Qb6!?=) 14.Ne5+/– Qd6? (better is 14...Qb6+/–) 15.d4+– Bb7 (15...Nd7 16.Nd7 (16.Ra6?! Ba6 17.Ba6 Nb8+=; worse is 16.Ba6 Ba6 17.Nd7 Qd7 18.Ra6 Qb7+–) 16...Qd7 17.Ba6 (17.Ra6?! Ba6 18.Ba6 Bb4+–) 17...Ba6 18.Ra6+–) 16.Ba6 (16.Ra6?! Ba6 17.Ba6 Rfb8+–) 16...Ba6 17.Ra6 Ra6 18.Qa6 Qb4 (18...Qe6 19.Nc6 Re8 20.b5+–) 19.Nc6 Bd8 (19...Qb2 20.Ne7 Kh8 21.Ncd5 Nd5 22.Nd5 Qc2+–) 20.Nb4 Bc7 21.Nbd5 Nd5 22.Nd5 Bd8 23.Nf4 (23.Qc6!? Ba5+–) 23...g6 24.Ng6! (24.Ng6 Re8 25.Ne5+–) 1–0. MarcosRamos – Geniu, chesshere.com, 2007.

5.Nc3 Nc6

6.a3 b5 7.cb5+/– ab5 8.Bb5 Bb7 9.Nf3 h6 10.0–0 Be7 11.d4 e4 12.Nd2 0–0 13.Nde4 Ne4+/– 14.Ne4 Na7 15.Bd3 f5 16.Ng3 f4 17.Nf5 Bc8 18.Qg4 Bg5 19.ef4 Bf6 20.Nh6 Kh8 21.Qg6 (21.Qg6 Bf5 22.Bf5 gh6 23.Qh7) 1–0. shirehorse – pinski, ChessWorld.net, 2005.

6.a3 Bf5 7.Nf3 Be7 8.d4 ed4 9.Nd4 Nd4 10.Qd4 c5 11.Qd1 h6 (11...0–0 12.Bd3 Bd3 13.Qd3 cb4 14.ab4=) 12.Bd3 Bd3 13.Qd3 Rb8 14.0–0 0–0 15.Rfd1 Qc7 16.b5 a5 17.Ne4 Ne4 18.Qe4 Qd7 19.Rd5 Qe6 20.Qf3 f5 21.Qg3 Do you see the mate threat? 21...Rf7 22.Rad1 Rd8 23.Qf3 Bf6 24.Bf6 Rf6 (24...Qf6!? 25.Qf4 Qb2+/–) 25.Rc5!+– dc5 Exploits the pin 26.Rd8 Annihilates a defender: d8 26...Kh7 27.Qd5 Qb6? (better is 27...b6+–) 28.Rd7 (28.Qg8!? Kg6 29.Rd7 Kh5 30.Rg7 Rg6+–) 28...Rf8 29.Rb7 The passed pawn on b5 will quickly become a dangerous weapon 29...Qf6 Threatening mate: Qa1 30.g3 Qa1 (30...f4 31.ef4 (31.Qc5 fg3 32.f4 Rd8 33.hg3 Qa1 34.Kh2 Rd2 35.Kh3 Qh1 36.Kg4 Qb7+=) 31...Qa1 32.Kg2 Qa3 33.f5+–) 31.Kg2 Qa3 32.b6 (better is 32.Qe5 Rg8 33.Qf5 Kh8+–) 32...Qb4 33.Qe5 The mate threat is Qxg7. White gets kings attack 33...Rg8 34.Qf5 Kh8 35.Qd5 a4 36.Ra7 Qb6 37.Ra4 Rf8 (37...Kh7 38.Ra8 Ra8 39.Qa8+–) 38.Ra8 Threatening mate... how? 38...Ra8 39.Qa8 Kh7 40.Qe4 Kh8 41.h4 Qd6 42.h5 Qc7 43.g4 (43.Qd5 Kh7+–) 43...Qd7 44.Kg3 Qc7 45.Qf4 Qd8 46.Kh3 Qd1 47.Qe4 Qf1 48.Qg2 (better is 48.Kg3+–) 48...Qc4+/– 49.Kg3 Qd3 50.Qc6 c4 51.Qe8 Kh7 52.Kf3 (better is 52.Qb5!?+/–) 52...c3 53.Qg6 (better is 53.g5 Qf5 54.Ke2 Qc2 55.Kf3 Qf5 56.Ke2 Qc2 57.Kf3 Qf5=) 53...Qg6–/+ 54.hg6 Kg6 55.Ke2 Kg5 56.f3 (56.Kd3 Kg4 57.Kc3–+) 56...Kh4 (better is 56...g6–+) 57.Kd3 (57.e4 Kg5 58.e5 Kg6+–) 57...Kg3? (better is 57...g6!? 58.e4 h5 59.gh5 gh5 60.Kc3 Kg3+–) 58.e4 Kf4 59.Kc3 Ke5 60.Kd3 g5 (60...g6+–) 61.Ke3 Kf6 62.f4 Ke6 63.e5 Kf7 (63...Kd5+–) 64.Ke4 gf4 65.Kf4 Ke6 66.Ke4 Kf7 (66...Ke7 67.Kf5 Kf7 68.e6 Kg7 69.g5 hg5 70.Kg5+–) 67.Kf5 (67.Kf5 Ke7 68.e6+–) 1–0. Van Oosterom,Chiel – Dessing,Bastiaan, NED–ch U14 Rijswijk, 2000.

6.a3 Bf5 7.Nf3 Be7 8.Be2 0–0 9.d4 ed4 10.Nd4+= Be4 11.Ne4+/– Ne4 12.Bf3 Nd4 13.Be4 Nc6 14.Qg4 g6 15.h4 h5 16.Qf3+/– Bh4 17.g4+– hg4? 18.Qg4 Bf6 19.Bg6! (19.Bg6 Re8 20.Bh5 Kf8 21.Rg1+–) 1–0. MarcosRamos (1765) – FischersFritze, internet, 2007.

5.Nc3 Bd7

6.d4 ed4 7.ed4 Bf5 (7...d5 8.a3+=) 8.Bd3 (8.Qf3 Qd7=) 8...Bd3 9.Qd3 d5 10.cd5 (better is 10.c5!?=) 10...Bb4–/+ 11.Qe3 (11.Qe2 Qe7–/+) 11...Qe7 12.Qe7 Be7 (12...Ke7 13.Nf3–/+) 13.Nge2 (13.Kf1 Bb4+=) 13...Nbd7–/+ 14.h4 (14.Ng3 Bb4–/+) 14...Bb4 (14...Nb6 15.h5–/+) 15.Rc1 (15.a3 Bd6–/+) 15...Nb6 16.a3 Ba5 (16...Bd6 17.h5–/+) 17.0–0 (better is 17.d6 Nc4 18.Rc2–/+) 17...Nfd5?? (better is 17...0–0–0–/+) 18.Nd5+– Nd5 19.Nc3?? (better is 19.Rc5 0–0–0 20.Ra5+–) 19...0–0–0 20.Nd5 Rd5 21.Rc5 Rc5 (21...Rhd8 22.Rfc1–/+) 22.dc5 f6 23.Rc1 (23.Rd1 Rd8 24.Rd8 Kd8–/+) 23...Re8 (23...Rd8 24.h5–/+) 24.Bc3 (24.h5 Rd8–/+) 24...Bc3 25.Rc3 Kd7 26.Rb3 (26.f4!?–/+) 26...Kc6–+ 27.Kf1 (better is 27.f4–+) 27...b6 (27...Re5 28.f4 Rc5 29.Ke2–+) 28.f3? (better is 28.cb6 cb6 29.Rc3 Kd6 30.Rd3 Ke6 31.Re3 Kf7 32.Rc3–/+) 28...b5 (28...Kc5 29.Rc3 Kd6 30.Rd3 Ke6 31.Re3 Kf7 32.Rb3–+) 29.Rb4 (29.Rc3 Re5–+) 29...Re7 (better is 29...Kc5 30.Kf2–+) 30.a4 (30.Kf2 Kc5 31.Rb1 Kc4–+) 30...Kc5 31.Rg4 (31.Rb1 ba4 32.h5 Kc4–+) 31...ba4 (better is 31...b4 32.f4 b3 33.Rg3–+) 32.Ra4 Kb5 33.Ra2 (33.Rf4 c5–+) 33...a5 34.Re2 (34.Rb2 Kc4 35.Ra2–+) 34...Re2 35.Ke2 Kb4 (35...Kc4 36.Kd2 Kb3 37.Kc1–+) 36.Kd1 (36.Kd3 Kb3 37.Kd4 a4–+) 36...Kb3 37.Kc1 a4 38.Kb1 a3 39.g4 (39.h5 a2 40.Ka1 c5 41.f4 c4 42.h6 gh6 43.g3 c3 44.f5 c2 45.g4 c1Q) 39...a2 40.Ka1 Kc3 (40...g5 41.h5 h6 42.f4 gf4 43.g5 f3 44.gf6 f2 45.f7 f1Q) 41.f4 Kd4 (41...Kb3 42.h5–+) 42.g5 f5 43.h5 Ke4 44.g6 hg6 45.hg6 Kf4 46.Ka2 Kg5 47.Kb2 Kg6 48.Kc2 Kg5 49.Kd2 Kf4 50.Ke2 g5 51.Kf2 g4 52.Kf1 Kf3 53.Kg1 g3 54.Kf1 Kg4 55.Kg2 f4 56.Kg1 Kh3 57.Kh1 f3 58.Kg1 g2 (58...c5 59.Kf1–+) 59.Kf2 Kh2 (better is 59...Kg4 60.Kg1–+) 60.Kf3 g1Q (60...g1Q 61.Ke2 c5–+) 0–1. Van Rueschen,Raphael – Bruensch,Stefan, Schleswig Holstein–ch U15 VR2, 1997.

6.Be2 c5 A) 7.Qb3 cb4 (7...Nc6 8.bc5 dc5 9.Rb1 b6 10.Bf3 Rb8 11.d3) 8.Qb4 (8.Nd5 Nd5 9.cd5 a5 10.d4 e4 11.Qc2) 8...Nc6 9.Qb3 Na5 10.Qd1 Qb6 11.Rb1; B) 7.bc5 dc5 8.Nf3 Bd6 9.d4 ed4 10.ed4 0–0 11.0–0.

6.Be2 Nc6 A) 7.a3 A1) 7...Bf5 8.d3 (8.d4 e4 9.d5 Ne5 10.Qa4 Qd7 11.Qd7) 8...Be7 9.Nf3 0–0 10.0–0 Re8 11.d4; A2) 7...Be7 8.Nf3 0–0 9.d4 ed4 10.ed4 Re8 11.0–0; B) 7.b5 B1) 7...ab5 8.cb5 Na5 9.Nf3 e4 10.Nd4 d5 11.d3; B2) 7...Na5 8.d4 ed4 9.Qd4 ab5 10.cb5 Be6 11.Nf3; B3) 7...Nb8 8.d4 (8.Bf3 ab5 9.cb5 c6 10.bc6 Nc6 11.Nge2; 8.Nf3 ab5 9.cb5 e4 10.Nd4 c5 11.bc6) 8...ab5 9.cb5 e4 10.d5 Bf5 11.g4; B4) 7...Ne7 8.Nf3= (8.ba6 Ra6 9.Nf3 Bf5 10.0–0 Ng6 11.d4) 8...ab5 9.cb5 Ng6 10.e4 Nf4 11.0–0.

6.Be2 Be7 A) 7.a3 A1) 7...0–0 8.Nf3 Nc6 9.0–0 Bf5 10.d4 Re8 11.d5; A2) 7...Nc6 8.Nf3 0–0 9.d4 ed4 10.Nd4 Nd4 11.Qd4; A3) 7...c5 8.Nf3 (8.d4 ed4 9.ed4 0–0 10.bc5 dc5 11.d5) 8...Nc6 9.b5 ab5 10.cb5 Na5 11.d4; A4) 7...a5 8.b5 Be6 9.Nf3 Nbd7 10.0–0 Nb6 11.d3; B) 7.Nf3 B1) 7...0–0 8.0–0 (8.a3 Bf5 9.d4 a5 10.b5 e4 11.Nd2; 8.d4 e4 9.Nd2 d5 10.cd5 Bb4 11.Qb3; 8.Qb3 a5 9.b5 Bg4 10.Qc2 c6 11.d4) 8...Bf5 9.d4 e4 10.Nd2 d5 11.a3; B2) 7...Nc6 8.a3 0–0 9.0–0 Bf5 10.d4 Re8 11.d5.

6.Be2 g6 7.d3 (7.Nf3 Nc6+= 8.a3 (8.b5 Ne7 9.ba6 Ra6 10.d4 ed4 11.Nd4; 8.Qb3 g5 9.0–0 g4 10.Ng5 Rg8 11.Nge4) 8...Bg7 9.d4 ed4 10.Nd4 0–0 11.0–0) 7...Bg7 (7...Nc6 8.a3 (8.b5 ab5 9.cb5 Ne7 10.Nf3 Bg7 11.0–0; 8.Qb3 Bg7 9.Nf3 0–0 10.0–0 Re8 11.a4) 8...Bg7 9.Nf3 0–0 10.0–0 Re8 11.d4) 8.Nf3 0–0 (8...Nc6 9.a3 0–0 10.0–0 Re8 11.Qd2) 9.0–0 Nc6 10.a3 Re8 11.Qc2 (11.d4=) 11...Bf5 Black intends e4 12.b5 (12.e4 Bg4=) 12...Nb8 (12...ab5 13.cb5 Na5 14.Rab1=) 13.h3 (13.e4 Bg4+=) 13...e4 (13...Bd7 14.a4=) 14.de4 (14.Ne4 Ne4 15.Bg7 Kg7=) 14...Ne4 15.Ne4 Be4 (worse is 15...Re4 16.Bg7 Re3 17.Qd2 Re2 18.Qe2 Kg7 19.Nd4+/–) 16.Qb3 Nd7 17.Bg7 Kg7 18.Qc3 Qf6 19.Qf6 (19.Nd4 ab5 20.f3 Bf5 21.cb5 Nc5=) 19...Nf6 (19...Kf6 20.Nd4=) 20.Nd2 Bf5 (20...h5 21.Rfc1=) 21.g4 Ne4 (21...Be6 22.Bf3 Rab8 23.Rfd1=) 22.Ne4 Be4 ˝–˝. Holz auf der Heide,Gerhard (1615) – Kohl,Kurt (1980), GER–chB Seniors, 2004.

6.Nf3 c6 7.a4 Bg4 8.Be2 Nbd7 (8...e4 9.Nd4 Be2 10.Qe2=) 9.h3= Bh5 10.Qb3 h6 11.0–0 Be7 12.d4 e4 13.Nd2 Be2 14.Ne2 d5 15.cd5 cd5 16.Nc3 Nb6 17.a5 Nc4 (17...Nc8!?=) 18.Nc4+/– dc4 19.Qc4 Rc8 20.Qb3 0–0 21.Rfc1 b5 22.ab6! Qb6 23.Ra4 Rb8 24.Rca1 a5 25.b5 Bb4 26.Ba3 Bc3 27.Qc3 Rfc8 28.Bc5 Qb5 29.Ra5 Qd3 30.Qd3 ed3 31.Rd1 Ne4 32.f3 Nc5 33.Rc5 Rc5 34.dc5 Rb3 35.e4 Rc3 36.Kf2 f6 37.Ke3 Rc5 38.Rd3 Rc2 39.g3 Kf7 40.Rd7 Kg6 41.h4 Rc3 42.Kf4 h5 43.Rd8 Rc5 44.Rh8 Rb5 45.g4 hg4 46.Kg4 Rb1 47.h5 Kf7 48.f4 Rg1 49.Kf5 (49.Kf3 Rf1 50.Ke3 Re1 51.Kd3 Rf1+/–) 49...Rg2? (better is 49...Rh1!?+=) 50.Ra8 Re2 51.Ra7 Kf8 52.h6! gh6 (52...gh6 53.Kg6 Double attack (53.Kf6 Deflection; 53.Kg6 Decoy)) 53.Kf6 Re4 (53...Kg8 54.e5 Rb2+–) 54.Ra8= Re8 55.Re8 Ke8 56.Kg7 1–0. Wong,Brian (2005) – Alcid,Allan (1750), 42nd Olympiad, 2016.

5.Nc3 Be7

6.Be2 0–0 7.a3 c5 8.Qc2 b6 9.Bf3 Ra7 10.Nge2 Re8 (10...Be6 11.Qd3=) 11.Nd5 Bf8 (11...Bb7 12.Nec3=) 12.Nf6 Qf6 13.Nf4 Be6 (13...Bf5 14.d3=) 14.Be4 White fights for the Initiative 14...h6 15.Ne6 fe6 (15...Qe6 16.0–0+/–) 16.Bg6 (16.bc5 bc5 17.0–0 Qg5+–) 16...Ree7 (16...Rc8!? 17.bc5 b5 18.cd6 Rc4+=) 17.0–0 d5 (17...cb4!? 18.f4 Rec7 19.fe5 Qd8 20.ed6 Bd6 21.ab4 Bb4+/–) 18.f4+– Qh4 (18...Red7 19.fe5 Qd8 20.bc5+–) 19.Be5 (19.bc5 bc5 20.g3 Qg4 21.fe5 Rf7 22.Rf7 Rf7 23.Bf7 Kf7 24.Rf1 Ke8+–) 19...Nd7 20.Bb2 (20.bc5!? Nc5 21.d4 Nd7+–) 20...Qg4 (20...dc4 21.Qc4 Qg4 22.Bd3+–) 21.Rf3 Nf6?? (better is 21...dc4 22.Rh3 e5+/–) 22.Bf6 gf6 23.Rg3 Qg3 24.hg3 Rg7 (24...cb4 25.cd5 ed5 26.ab4+–) 25.f5 (25.bc5 bc5 26.cd5 ed5+–) 25...e5 (25...cb4 26.cd5 ed5 27.Qc6+–) 26.cd5 Rad7 (26...Rgd7 27.Qe4+–) 27.e4 (27.Qa4 cb4 28.ab4 e4+–) 27...Bd6 (27...Ra7 28.Qa4 b5 29.Qa5+–) 28.Qa4 Rge7 29.Rc1 Kg7 30.Kf2 Ra7 (30...cb4 31.ab4 Ra7 32.Rc6+–) 31.Qb3 (better is 31.Qc6 Bb8 32.bc5 bc5+–) 31...Rec7 32.d3 b5 (32...b5 33.Ke1 Kh8+–). Mr_Anonymous – Mar99Arg (1800), Dos Hermanas Internet Section, 2003. (aka “Andronache,Daniel – Barreira,Martin Adrian, Internet Section, 2003”)

6.Nf3 Bg4 7.h3 Bh5 8.Be2 Nbd7 9.d4 ed4 10.Nd4 Be2 11.Qe2 c6 12.0–0 White prepares b5 12...0–0 13.Rad1 Qc8 (better is 13...Re8!?+=) 14.Nf5+/– Bd8 15.Nd6 Qb8 16.b5 (16.Rd2 Bc7 17.Rfd1 a5+–) 16...Bc7 17.Ba3?? (better is 17.Nce4 Ne4 18.Ne4+/–) 17...ab5+= 18.Qb2 (better is 18.Ndb5 Rc8 19.Nd6 Ra3 20.Nc8 Qc8 21.Nb1–/+) 18...Ra3?? (better is 18...b4 19.Bb4 c5–/+) 19.Qa3+/– b4 20.Qb4 c5 21.Qb7 Bd6 22.Qc6 (better is 22.Qb8 Bb8 23.Nd5+/–) 22...Bc7? (22...Bh2!? 23.Kh1 Be5+=) 23.Nd5 (23.Rd7!? Nd7 24.Qd7 Bh2 25.Kh1+–) 23...Nd5+/– 24.Qd5 (worse is 24.Qd7 Nc3 25.Ra1 Be5+=) 24...Rd8 25.Qc6 Qc8 26.Kh1 g6 (26...Nf6 27.Rd8 (27.Qc5 Rd1 28.Rd1 Ne4–/+) 27...Qd8 28.Qc5+/–) 27.Rd5 Ne5 (27...Nb6 28.Rc5 Nd7 29.Rd5+– (29.Qc7 Nc5 30.Qc8 Rc8–/+)) 28.Qc5+– Nd3 29.Rd8 Qd8 30.Qd4 Qd6 31.Qd6 Bd6 32.Kg1 Bc5 33.Rb1 Nb4 34.a4 Kf8 35.Kf1 Ke7 36.Rd1 h5 37.Ke2 Bb6 38.Kf3 Ke6 39.Ke4 f6 40.Rb1 Bc5 41.Rd1 Bb6 42.g4 hg4 43.hg4 f5 44.Kf4 Bc5 45.Rd8 g5 46.Kf3 Nc6 (46...Be7 47.Rd1+–) 47.gf5 Kf5 48.Rd5 Ne5 49.Ke2 (better is 49.Kg3 Bb4 50.Rb5 Bc3+–) 49...Bb4 (49...Ba7 50.Ra5 Bb8 51.Rb5+–) 50.Rb5 (50.a5 Ke6 51.a6 Nc6+–) 50...Bc3 51.a5 g4 (51...Ke6+–) 52.a6 g3 53.fg3 Ba5 54.Ra5 Ke4 55.Re5! (55.Re5 Ke5 56.a7+–) 1–0. Szakacs,Laszlo (1885) – Pavelkovits,Bela, Komarom HUN, County Team Ch, 2013.

5.Nc3 Bf5

6.a4 Nc6!? –/+.

6.a4 Nbd7 7.Be2 (7.Nf3 g6=) 7...Be7 (7...a5 8.b5=) 8.Nf3 0–0 9.0–0 c6 10.Qb3 (10.a5 h6=) 10...Qc7 (10...a5 11.Nh4 Be6 12.b5+=) 11.d4 (11.a5 h6+=) 11...ed4 (11...a5 12.b5=) 12.ed4 Rfe8 13.b5 (13.Rfe1 Rac8=) 13...Rab8 14.a5 cb5 (14...d5 15.b6 Qd8 16.cd5 Nd5 17.Nd5 cd5 18.Qd5=) 15.cb5+= ab5 16.Qb5 Bg6 (16...g6!?+=) 17.Rfc1 (17.Nh4 Nf8+/–) 17...Qd8 18.Nh4 Be4 19.Ne4 Ne4 20.Nf5 (better is 20.Nf3+/–) 20...Nf8? (20...Bg5!? 21.Rc2 g6+=) 21.Qd5 (21.f3 Nf6+–) 21...Nf6 (21...Bg5!? 22.Bc4 Re6+/–) 22.Qb3+– Ne6 (better is 22...d5+–) 23.Bb5 Rf8 (23...Bf8 24.Be8 Ne8 25.d5+–) 24.d5 Nc5 (24...Nf4 25.Bd4 N6d5 26.Bg7+–) 25.Qf3 Ncd7 26.Re1 Re8 (26...Ne5 27.Qa3 Ng6 28.Bd4 Nd5 29.Bg7+–) 27.Qg3 (better is 27.Bd7 Nd7 28.Ng7+–) 27...Bf8 (27...g6 28.Nh6 Kf8+–) 28.Nh6 Kh8 29.Nf7 (29.Nf7 Kg8 30.Nd8 Rbd8 31.Re8 Ne8 32.Qg5+–) 1–0. Lein,Marina (1925) – Poluzanova,Julia, Seniors Russian Championship Women, 2011.

6.d3 c6 7.e4 Bg6 8.Qb3 (8.Nf3 Nbd7=) 8...Nbd7 9.Be2 Be7 10.Nh3 (10.Nf3 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Nf8=) 10...0–0 11.f4 (11.0–0 h6+=) 11...Bh5 (11...a5 12.b5 Nc5 13.Qc2–/+) 12.0–0 (12.Bh5 Nh5 13.0–0 a5+=) 12...Be2 13.Ne2 h6 (13...a5!?–/+) 14.Nf2 c5 15.b5 a5 (15...ab5!? 16.Qb5 Ra6=) 16.a4+= b6 17.Kh1 Nh7 18.Ng4 Ndf6 (18...Bf6!?+=) 19.Ne3+/– ef4 (19...Qc7!?+/–) 20.Nf4+– Ng5 (20...Re8 21.Nf5+–) 21.Nf5 Ne6 (better is 21...g6!? 22.Ne7 Qe7+–) 22.Nd5 Nd5 23.cd5 Nd4 24.Bd4 (24.Nd4 cd4 25.Bd4 f5+–) 24...cd4 25.Nd4 Bf6 (25...Bg5 26.Nc6 Qe8 27.Qc4+–) 26.Nc6 Qd7 27.d4 White intends e5 27...Qg4 (27...Rae8 28.Rae1+–) 28.e5 de5 (28...Bh4 29.Qd3+–) 29.de5 Bg5 30.d6 Rae8 31.Rad1 Qd7 32.Rf3 Kh8 33.Rdf1 f5 (33...Kg8 34.Qb2+–) 34.Qd5 g6 (34...f4 35.Qd4+–) 35.Qd4 1–0. Dzera,Evgeniy (2170) – Kovalev,Aleksandr (1955), Konakovo Final, 2012.

6.d3 Nc6!? +=.

6.Qf3 Bc8 =.

6.Qf3 Bd7 =.

5.d3 Be7

6.d4 =+.

6.Be2 0–0 7.Nd2 (7.Nf3 Nc6 8.a3 Re8=) 7...Be6 (7...d5 8.a3=) 8.Ngf3= b5 (8...Nc6 9.a3=) 9.Qc2 (9.Ng5 Bd7=) 9...Qd7 10.0–0 Nc6 11.a3 bc4 12.dc4 Bf5 Black plans e4 13.Bd3 (13.e4 Bg4+=) 13...Bd3 14.Qd3 e4? (better is 14...Qg4 15.h3 Qh5+=) 15.Ne4+– Ne4 16.Qe4 Rfe8 17.Qc2 (17.Qd5 Rab8+–) 17...Qe6+/– 18.Rac1 (18.Rfd1 Bf6+/–) 18...Ne5 (18...Bf6 19.Bf6 Qf6 20.c5+/–) 19.Ne5 (19.Nd4 Qg4+/–) 19...de5 20.Qc3 (20.c5 a5+/–) 20...Bf6 21.e4 Qg4 (21...Rad8 22.Rfd1+/–) 22.Qf3 (22.f3 Qf4+/–) 22...Qf3 23.gf3 Bg5 (23...a5+/–) 24.Rc3 (24.Rcd1 c5+–) 24...Re6 (24...Rad8!?+=) 25.Rd1+/– Rg6 (25...Kf8 26.Rcd3+/–) 26.Kf1+– Rh6 27.Rcd3 Bf6? (better is 27...f6 28.Rd8 Rd8 29.Rd8 Kf7 30.Rd7 Kg6+–) 28.Be5!! Be5 Theme: Deflection from d8 (28...c5+–) 29.Rd8 A double attack 29...Rd8 30.Rd8 1–0. Rempe,Torge – Meifert,Thomas, Schleswig Holstein–ch U14 VR, 1999.

6.Be2 Nc6 7.Qd2+=.

6.Nf3 Bg4 7.Be2 0–0 8.0–0 c6 9.Nbd2 Nbd7 10.Qc2 Bf3 (10...a5 11.a3=) 11.Nf3+= (worse is 11.gf3 Qc7+=) 11...b5 (11...a5 12.a3+=) 12.cb5 cb5 13.Rfd1 (13.Rfc1 Nb6+=) 13...h6 (13...a5 14.a3+=) 14.Nh4 (14.Rdc1 Nb6+=) 14...Nd5 15.Nf5 Nb4 16.Qb3 a5 (better is 16...Nc6 17.d4 ed4 18.ed4 Bg5+=) 17.a3 (17.d4 e4+/–) 17...Nc6 (17...Nc5!? 18.Qc3 Nd5+=) 18.Ne7 (18.d4 b4 19.de5 Nde5 20.ab4+–) 18...Qe7= 19.Rdc1 (19.d4 Na7=) 19...Na7 20.Bc3 (20.d4 Rfb8=) 20...a4+= 21.Qb2 (21.Qb4 Nf6+=) 21...Nc5 22.Bb4? (better is 22.Rab1+=) 22...Nb3–+ 23.Bf3 Rad8 24.d4 (24.Bd5 Na1 25.Ra1 Rc8–+) 24...ed4 25.ed4 Na1 26.Qa1 Rfe8 27.Qb2 (27.Re1 Qf6–+) 27...Rc8 28.d5 Qe1?? (better is 28...Qf6 29.Qd2 Rc1 30.Qc1 Rc8–+) 29.Re1+– Re1 30.Be1 Re8 (30...Rc7 31.Qb4 Rc1 32.Kf1+–) 31.Kf1 (31.Qb4 Nc8+–) 31...f6 (31...Re7 32.Bb4 Rd7 33.Bg4+–) 32.Qd4 Nc8 33.Be2 Ne7 (33...Kf7 34.Bb5 Re5 35.Qa4+–) 34.Bb5 Rf8 35.Ba4 Rc8 36.Bb4 Rd8 37.Qb6 Rf8 38.Bd6 (better is 38.Qd6 Ra8 39.Qe7 Kh8+–) 38...Nc8 39.Qc6 Nd6 40.Qd6 h5 41.Qe6 Kh8 42.d6 g6 43.d7 Kg7 44.Qe7 Rf7 45.Qf7! Kf7 46.d8Q Kg7 47.Qe7 Kh6 48.Qf6 h4 (48...Kh7 49.Qf7 Kh6 50.Bc2 Kg5 51.Qg6 Kf4 52.Qf5) 49.Qh4 (49.Bc2 Kh7 50.Qg6 Kh8 51.Qh7) 49...Kg7 50.Bb3 1–0. Goldmund,Heike – Stoyanov,Zdravko, FICGS, 2016.

6.Nf3 Bg4 7.Be2 Nc6 8.b5 ab5 9.cb5 Na7 10.a4 b6 (10...0–0 11.0–0=) 11.0–0 0–0 12.h3 Bh5 (12...Bd7 13.Nc3=) 13.Nc3 Rb8 (13...c5 14.Qc2=) 14.Qc2 Qd7 (14...c5 15.Rfc1+=) 15.Rfd1 Rfd8 (15...c5 16.d4 ed4 17.ed4+=) 16.d4+/– Bg6 Black prepares the advance e4 17.Qb3 White plans d5 (17.Bd3 Bd3 18.Qd3 c5+=) 17...e4+= 18.Ne5 Qe8? (better is 18...de5!? 19.de5 Qf5 20.ef6 Rd1 21.Rd1 Bf6+/–) 19.Ng6+– hg6 20.d5 Nd7 (better is 20...Rd7+–) 21.Ne4 Nc5 22.Qc2 (22.Nc5 dc5 23.a5 ba5 24.Ra5 Nc8+–) 22...Qd7 (22...Ne4 23.Qe4 Bf6 24.Qe8 Re8 25.Bf6 gf6 26.Rdc1+–) 23.Ng3 (23.Qc3 Bf8 24.Nf6 Kh8 25.Nd7 Rd7+–) 23...Rf8 (23...Bh4 24.Bg4 f5 25.Be2+–) 24.e4 (24.Rdc1 Ra8+–) 24...Bf6 25.Bc3 (25.Bf6 gf6 26.a5 Nb5+–) 25...Bc3 26.Qc3 f6 (26...Ra8 27.Rdc1+–) 27.Qc2 Rfe8 28.f3 (28.Rdb1 f5 29.a5 fe4+–) 28...Re7 29.Bc4 Rbe8 (29...Ra8 30.a5+–) 30.Kh2 (30.Rdb1 Nc8+–) 30...Kf7 (30...Ra8 31.Rdc1+–) 31.Bd3 Rh8 32.f4 Nd3 33.Qd3 Nc8 34.Qc4 (34.a5 ba5 35.Ra5 Qg4+–) 34...Kg8 (34...Qg4 35.Rf1+–) 35.Re1 (35.Kg1 Rh4 36.Rf1 Na7+–) 35...Rh4 36.Rf1 Re8 37.Qc3 (37.Qc6 Qf7+–) 37...Re7 38.Rae1 Kh7 39.Qd3 Kg8 40.Qf3 Rh6 41.Re3 Rf7 42.Rfe1 Qe7 (42...Rh4 43.Kg1+–) 43.Qd1 (43.Qg4 Na7+–) 43...Qd7 44.Kg1 Kh7 45.Qg4 (45.Qf3 Kg8+–) 45...Qg4 46.hg4 Ne7 (46...Rh4 47.Kf2+–) 47.Rc1 (47.Rc3 g5 48.Rc7 gf4+–) 47...Ng8 (47...Rh4 48.Kf2+–) 48.Rec3 Rh4 49.Rc7 Rc7 50.Rc7 Rg4 51.Ne2 g5 52.Kf2 (52.Rc6 gf4 53.Rb6 f3+–) 52...gf4 (52...f5 53.ef5 Nf6 54.a5+–) 53.Kf3 (53.Rc6 Ne7+–) 53...Rh4 (53...f5 54.ef5 (54.Nf4?! Nf6 55.Re7 Kh6=) 54...Rg5 55.Rc6 (worse is 55.Kf4 Rg2 56.Kf3 Rg5+–) 55...Rf5 56.Rb6 Rd5 57.Nf4+–) 54.Nf4 Rh1 55.Ne6 Ra1 (55...Kh8 56.Rg7 f5 57.ef5 Rf1 58.Kg4 Nf6 59.Kg5 Nd5 60.g4+–) 56.Rg7 Kh8 57.Rb7 Ra4 (57...f5 58.ef5 Rf1 59.Kg4 Nh6 60.Kg5 Nf5 61.g4+–) 58.Rb6 Ra3 59.Kf4 (59.Kf4 Ra2 60.Rd6 Rg2 61.b6+–) 1–0. Genne,Rene – Mueller,P, Lenk op, 1989.

5.d4 Nc6

6.b5 ab5 7.cb5 Nb4 8.Qb3 (worse is 8.de5 de5 9.Nc3 Qd1 (9...Bf5 10.Qd8 Rd8 11.Rd1) 10.Rd1 Na2–/+ 11.Ra1; 8.a3 Nbd5 9.de5 de5 10.Be5 Bd6 11.Nf3) 8...Nfd5? (better is 8...c5 9.a3 Be6= 10.Bc4 d5 11.Be2) 9.e4 (9.de5 Bf5 10.Nd2 Nc2 11.Kd1 Qh4=) 9...Na2?? (9...Nf6 10.Qb4 d5+–) 10.ed5 (10.Qd5?! Nb4 11.Qc4 d5+–; 10.Ra2?! Ra2 11.Qa2 Nb4+–) 10...Bf5 (10...Nc1 11.Qc4 (11.Bc1?! Ra1 12.Bd3 Qe7+=) 11...Ra1 12.Ba1+–) 11.Na3 (11.Nd2 e4+–) 11...ed4 (11...c5 12.Ra2 cd4 13.b6+–) 12.Qa2 (12.Ra2 Qe7 13.Kd1 Qh4+–) 12...Qe7 (12...c5 13.bc6 Qa5 14.Ke2 bc6 15.Bd4+–) 13.Kd1 Qe4 (13...Qh4 14.g3 Qh5 15.Be2+–) 14.Qc4 1–0. mtra – plabrado, internet, 2002.

6.de5 Ng4 ( 6...Ne5!? 7.Nf3 Qe7=) 7.ed6+/– Bd6 8.c5 (8.Bg7 Bb4 9.Nc3 Qd1 10.Rd1 Rg8–+) 8...Be5 9.Qd8 Nd8 (9...Kd8 10.Be5 Nge5 11.a3+/–) 10.Be5 Ne5 11.Nc3 Ndc6 12.a3 Be6+/– 13.Be2 0–0 14.Nf3 Rfd8 15.0–0 Bc4 16.Ne5 Ne5 17.Bc4 Nc4 18.a4 c6 19.Rfd1 g6 20.h3 Rd2 21.Rd2 Nd2 22.Rd1 Nc4 23.a5 Re8 24.g4 Ne5 25.Kg2 Kg7 26.f4?? Nc4+= 27.Kf3?? Re3–+ 28.Kg2 Rc3 29.Rd7 Rb3 30.Rb7 Na5! 31.Rb6 Nc4 32.Rc6 Rb4 33.Ra6 Ne3 34.Kf3 Nd5 35.c6 Rf4 36.Ke2? Rf6 37.Ra5 Nc3 38.Kd3 Rc6 39.h4 Nd1 40.Ra1 Nf2 41.Ke2 Ng4 0–1. coloplayah (1925) – tata (1930), net–chess.com, 2005.

5.d4 ed4

6.ed4 c5 7.bc5 dc5 8.d5 Bd6= (8...Be7 9.Nf3 0–0 10.Bd3 Re8 11.0–0 Nbd7) 9.Qe2 Kf8 10.Nf3 b5 11.Qd2 Bg4.

6.ed4 c5 7.dc5 dc5 (7...Qe7 8.Be2 dc5 9.bc5 Nbd7 10.Nf3 Nc5 11.0–0 Be6) 8.Qd8 (8.Qe2 Be6 9.Nh3 Nc6 10.Nf4 Nd4 11.Ne6 fe6) 8...Kd8 9.Bf6 gf6 10.b5 (10.bc5 Bc5 11.Nc3 Re8= (11...Nd7=); 10.Nc3 cb4 11.Rd1 Nd7) 10...ab5 11.cb5 Be6 12.Nc3 Ra3 (12...f5 13.Bd3+=) 13.Nge2 (13.0–0–0 Nd7 14.Kb2 c4=) 13...Bg7 14.g3 (14.0–0–0 Nd7 15.Kb2 Ra8=) 14...Re8 (14...f5 15.Rc1+=) 15.0–0–0= Nd7 16.Rd2 (16.Kb2!? Ra7 17.a4+=) 16...f5–/+ 17.Rc2 f4! 18.Bg2 (18.Nf4 Rc3 Deflection; 18.gf4 Bf5 Combination) 18...Bf5–+ 19.Bb7 Bc2 20.Kc2 c4 (20...Ra2! 21.Kd1 Bc3 22.Nc3 Rf2 23.Bc6–+) 21.Kd2 f3! 22.Bf3 Re2! 23.Ne2 (23.Ne2 Rd3 Double attack (23...Rf3 Pinning; 23...Rf3 Deflection); 23.Ke2 Rc3 Deflection (23...Rc3 Remove defender; 23...Rc3 Overloading); 23.Be2 Bc3 Double attack (23...Rc3 Remove defender)) 23...Rf3 24.Rb1 (24.Rd1 Rf2 25.h4 Rh2–+) 24...Bh6 (24...Rf2 25.h4–+) 25.Ke1 Ne5 26.b6 (26.a4 Nd3 27.Kd1 Rf2–+) 26...Nd3 27.Kd1 Rf2 28.a4 (28.Rb5 Kc8 (28...Rh2?? 29.b7 Rh1 30.Kc2+–) 29.b7 Kb8–+) 28...Kc8 (28...Rh2 29.Rb5 Kc8 30.Rf5–+) 29.a5 (29.h3 c3 30.a5 Nb2 31.Kc2 Re2 32.Kc3 Bg7 33.Kb4 Kb7–+) 29...Rh2 30.a6 Be3 31.a7 (31.Rb5 Rh1 32.Kc2 Re1–+) 31...Kb7 32.Rb5 Rh1 33.Kc2 Re1 34.Kc3 Re2 35.Kc4 Nc1 36.Ra5 (36.Rb1 Ra2 37.Kc3 Ra5–+) 36...Rc2 37.Kd5 Rc8 38.Ra1 Ne2 39.Rf1 f5 40.Rf5 (40.Re1 Nc3 41.Ke6 Bb6 42.Kf5 Rc5 43.Kf4–+) 40...Rc5 41.Ke4 Rf5 (better is 41...Ng3 42.Ke3 Nf5 43.Ke4 Nd6 44.Kd4–+) 42.Kf5 Bb6 (better is 42...Ng3!? 43.Kg4 Nf1 44.Kh5–+) 43.a8Q Ka8 44.g4 h6 (44...Kb7!? 45.g5–+) 45.Ke4 (45.g5 h5–+) 45...Bd8 0–1. Bonetti,Shane – guest995, ICC, 2002.

6.ed4 c5 7.Bd3 cb4 (7...Nc6 8.bc5 dc5 9.d5 Nb4 10.Nf3 Qe7 11.Kf1 Nd3; 7...Be7 8.bc5 dc5 9.d5 0–0 10.Nf3 b5 11.0–0 Ra7) A) 8.Nf3 d5 9.Nbd2 dc4 10.Nc4 b5 11.Nce5 Bd6; B) 8.Qb3 d5 (8...Be7 9.Qb4 d5 10.c5 Nc6 11.Qa3 b6; 8...Nc6 9.Nf3 d5 10.0–0 Be7 11.c5 0–0) 9.Nf3 Be7 10.0–0 0–0 11.c5 b6; C) 8.d5 Nbd7 9.Nf3 b5 10.0–0 bc4 11.Qe1 Be7; D) 8.Qa4 Qd7 (8...Nbd7 9.Nh3 d5 10.c5 Qc7 11.0–0 b6) 9.Qb4 d5 10.c5 Qg4 11.g3 Nc6.

6.ed4 c5 7.Qe2 Be7 A) 8.Qd2 0–0 (8...cb4 9.Qb4 d5 10.Qa4 Nbd7 11.Nd2 dc4) 9.Nf3 cb4 10.d5 a5 11.Bd3 b5; B) 8.dc5 0–0 9.Nc3 dc5 10.Rd1 Nbd7 11.bc5 Bc5.

6.ed4 c5 7.Nf3 cb4 A) 8.Qa4 Nbd7 (8...Qd7 9.Qb4 Nc6 10.Qb3 d5 11.c5 Rb8; 8...Bd7 9.Qb4 Nc6 10.Qb3 Na5 11.Qe3 Be7) 9.Be2 d5 10.c5 Be7 11.Nbd2 0–0; B) 8.Bd3 d5 9.0–0 dc4 10.Bc4 b5 11.Bd3 Be7; C) 8.d5 Be7 (8...Nbd7 9.Qa4 a5 10.Bd4 Be7 11.Bd3 0–0) 9.Qa4 Nbd7 10.Qb4 0–0 11.Be2 b5; D) 8.Be2 d5 9.0–0 Be7 10.Qa4 Bd7 11.Qb3 Nc6.

6.ed4 d5 7.a3 Qe7 8.Qe2 Qe6 (8...Be6 9.c5=) 9.c5 (9.cd5 Qe2 10.Ne2 Nbd7=) 9...b6 (9...Be7 10.Qe6 Be6 11.Bd3=) 10.Nf3 a5 11.Nc3 (11.Qe6 Be6 12.Nc3 Be7=) 11...ab4 (11...Be7 12.Qe6 Be6 13.Ne5=) 12.ab4+= Ra1 13.Ba1 bc5 (13...Be7 14.Qe5+=) 14.bc5+= Be7 15.Qe6 Be6 16.Bd3 0–0 17.0–0 (17.Kd2 Re8+=) 17...Nc6 18.Nb5 (18.Rb1 Ra8+=) 18...Nb4= 19.Nc7?? (better is 19.Be2 Na6 20.Bb2+=) 19...Nd3–+ 20.Ne6 (20.Rd1 Rb8 21.Ne6 fe6–+) 20...fe6 21.Ne5? (21.Rd1 Ra8 22.Ng5–+) 21...Ne5 22.de5 Ne4 23.c6 (23.Bd4 Bc5 24.Bc5 Nc5–+) 23...Bc5 24.g3 (24.g4 Rc8 (24...Nf2?! 25.Kg2–+) 25.Kg2 Rc6–+) 24...Rc8 (worse is 24...Nf2 25.Kg2–+) 25.Rc1 (25.Kg2 Rc6 26.f3 Nd2–+) 25...Bf2 (worse is 25...Rc6 26.Bd4 Kf7 27.Kg2–+) 26.Kg2 (26.Kf1 g5–+) 26...Bb6 (26...Be3 27.Rc2–+) 27.Kf3 (27.Rc2 Bc5–+) 27...Nd2 (27...Nd2 28.Ke2 Nc4–+) 0–1. Eisenhauer,Erik – Pommerin,Berit, RH–op Ingelheim, 1998.

6.ed4 Qe7 7.Be2+=.

5.Be2 Be6

6.Nf3 Nbd7 (6...Nc6 7.a3=) 7.0–0 b5 (7...Be7!?=) 8.cb5+= ab5 9.Bb5 Rb8 (9...Ra2!? 10.Ra2 Ba2+=) 10.a4+/– d5 (better is 10...c6 11.Bc6 Rb4+/–) 11.Ne5+– (11.Be5 Bb4 12.Nd4 0–0+–) 11...Bb4 (11...Rb6+–) 12.Nc6 Qc8 13.Nb4 0–0 (13...c5 14.Bf6 gf6 15.Nd3+–) 14.Nc3 (14.Nc6!? Qb7 15.Nb8 Rb8+–) 14...Ne5 (14...Qe8 15.Nc6 Rb7 16.Ba3+–) 15.Ncd5! Ned7 (15...Bd5 16.Be5 Eliminates the defender e5) 16.Ne7 (16.Ne7 Kh8 17.Nc8 Rfc8 18.Nc6+–) 1–0. Labahn,Thomas – Klopp,N (2225), Hasenpokal, 1990.

6.Nf3= Be7 7.0–0 0–0 8.Qc2 (8.d4 e4 9.Ng5 Bf5=) 8...Bg4 (8...Nc6 9.a3=) 9.Nc3 Re8 (9...Nc6 10.a3=) 10.a3 Bf8 (10...Nc6 11.Rad1=) 11.d4+= ed4 (11...Nbd7 12.de5 de5 13.Rfd1+=) 12.Nd4 Be2 13.Nce2 (13.Qe2 Nbd7+=) 13...Nbd7 14.Rfd1 Ne5 15.Rac1 White intends c5 (15.Nf4 Qd7+=) 15...Nfg4 (15...a5 16.b5+=) 16.h3 Nf6 17.c5 (17.Nf4 a5+=) 17...d5 18.c6 (18.Nf4 a5+=) 18...b6 (18...b5 19.Nf4=) 19.Qb3 (19.Nf4 b5+=) 19...Qd6 (better is 19...Nc4!?=) 20.Nf4+/– Red8?? (better is 20...g6+/–) 21.Nf5+– (21.Nf5 Qc6 22.Rc6 Nc6 23.Bf6 gf6 24.Nd5+–) 1–0. Castro Couceiro,Silvia – Verdugo,Ana, ESP–ch U20 Girls, 1998.

5.Nf3 b6

6.Nc3 Bb7 7.Be2 Be7 8.Qc2 Nbd7 9.0–0 0–0 10.d4 ed4 11.Nd4 g6 12.Bf3 Bf3 13.Nf3 Ng4 14.Nd5 Bf6 15.Nf6 Ngf6 16.Rad1 Qe7 17.Qc3 Rfe8 18.c5 Ne5 (18...dc5?? 19.Rd7 cb4 20.Qf6 (20.Re7?! bc3 21.Re8 Re8 22.Bc3 Ne4+–) 20...Qf6 21.Bf6+–) 19.cd6 cd6 20.Ne5 de5 21.Rd3 ˝–˝. Szakacs,Laszlo (1885) – Pusztai,Janos (1800), Komarom HUN, County Team Ch, 2012.

6.Be2 a5 7.Qa4 A) 7...Bd7 8.b5 Qe7 9.0–0 Bg4 10.Nc3+=; B) 7...Nbd7 8.0–0 (8.d4 Be7 9.0–0 0–0 10.de5+=; 8.Nc3 Bb7 9.b5 Nc5 10.Qc2=) 8...Be7 9.d4 0–0 10.de5+=; C) 7...Qd7 8.b5 (8.Qd7 Nbd7 9.Nc3 Be7 10.b5=) 8...Be7 9.0–0 Bb7 10.d4+=.

6.Be2 a5 7.ba5 Ra5 8.0–0 (8.d4 e4 9.Nfd2 Rg5 10.Qc2=; 8.Bc3 Ra8 9.d4 e4 10.Nfd2=) 8...Be7 9.d4 Nbd7 10.Bc3=.

6.Be2 a5 7.b5+= Be6 (7...Bb7 8.0–0+= Nbd7 9.d4 Bf3 10.Bf3+/–; 7...Be7 8.d4 (8.Nc3 Bb7 9.0–0 0–0 10.d4+=) 8...e4 9.Nfd2 Bf5 10.Nc3+=; 7...c6 8.Nc3 (8.0–0 cb5 9.cb5 Be7 10.d4+=; 8.d4 e4 9.Nfd2 cb5 10.cb5+=) 8...cb5 9.Nb5 Be7 10.0–0+=; 7...a4 8.a3 (8.0–0; 8.d3) 8...Bg4 9.Nc3 Nbd7 10.d4+/–) 8.Qc2 (8.0–0 Be7+= 9.d4 e4 10.Ng5+/–; 8.d4 e4 9.Nfd2 d5 10.cd5+=; 8.Nc3 Be7 9.d4 Nbd7 10.0–0+=) 8...h6 (8...Qd7 9.Nc3+= Be7 10.d4+=; 8...c6 9.Nc3 cb5 10.Nb5+=) 9.0–0 (better is 9.d4+/– e4 10.Nfd2+/–) 9...d5 (better is 9...c6!?+/– 10.Nc3+/–) 10.Ne5+– (10.cd5+–) 10...Bc5 (10...Bd6 11.cd5 Bd5 12.d4+–) 11.d4 (11.Bf3 Ra7+–) 11...Bd6 12.Nc3 Be5? (better is 12...dc4 13.Nc4 c6+–) 13.de5 Nfd7 (13...Ne4 14.Rfd1 Nc3 15.Qc3 d4 16.ed4 Qg5+–) 14.cd5 (14.cd5 Bh3 15.e6+–) 1–0. pierre – opponent, internet, 2009.

6.Be2 Bb7 7.0–0 Be7 8.Nc3 0–0 9.Nd5 ( 9.d4!?=) 9...Nd5–/+ 10.cd5 Bd5 11.d4 e4 12.Nd2 f5 13.Bc4 Bc4 14.Nc4 Nd7 15.a4 d5 16.Ne5 Ne5 (16...Bb4 17.Nc6 Qf6 18.Nb4+–) 17.de5 Bb4 18.Qd4 Be7 (18...c5 19.Qd1–+) 19.f3 c5 20.Qd1 Qd7 21.fe4 fe4 22.Qh5 d4 ( 22...Rf1 23.Rf1 Rf8 24.Rf8 Bf8–+) 23.ed4 cd4 24.Rfd1? ( 24.e6 Qd6 25.Rfe1 Qe6 26.Bd4–+) 24...d3 25.g4 (25.a5–+) 25...Bc5 26.Kg2 (26.Kh1 Qc6 27.Qh3 Rf3–+) 26...Rf2 27.Kg3 Rb2 (28.Rf1 e3–+; 27...Raf8 28.g5 R8f3 29.Qf3 Rf3 30.Kg2 Rf2 31.Kg3 Qf5 32.Rh1 Qg5 33.Kh3 Rf3) 0–1. maxum – mikkel, Live Game Caissa's Web, 2004.

6.Be2 e4!? 7.Nd4 A) 7...Be7 8.d3 d5 9.0–0 c5 10.bc5+=; B) 7...d5 8.cd5 (8.Qa4 Qd7 9.Qb3 dc4 10.Qc4=; 8.Qc2 dc4 9.Qc4 b5 10.Qc3=) 8...Qd5 9.f3 Qd6 10.fe4=; C) 7...c5= 8.Nc2 (8.Nb3 cb4 9.d3 Bb7 10.0–0=) 8...d5 9.bc5 Bc5 10.cd5=.

6.Be2 e4!? 7.Ng1 A) 7...Bf5 8.Nc3 (8.d3 d5 9.de4 Be4 10.f3=; 8.a3 a5 9.b5 d5 10.d4=) 8...c5 9.a3 Nc6 10.g4=; B) 7...Nc6 8.d4 (8.Nc3 Be6 9.f3 d5 10.b5=; 8.d3 d5 9.b5 ed3 10.Qd3+=) 8...d5 9.a3 dc4 10.Bc4=; C) 7...Bb7 8.a3 (8.Nc3 Be7 9.a3 0–0 10.f3+=; 8.Nh3 d5 9.Qb3 Nc6 10.a3+=) 8...Be7 9.Nh3 Nbd7 10.0–0=.

6.Be2 e4!? 7.Ng5 h6 8.Nh3 Bh3 9.gh3 c6 10.Bf6+=.

5.Nf3 Nc6

6.a3 e4 7.Nd4 Ne5 8.d3 c5 9.Nb3 cb4 10.ab4=.

6.a3 Be6 7.Be2 Be7 8.0–0 0–0 9.d3 h6 10.Nbd2 Nh7 11.Qc2 Ng5 12.Rac1 Nf3 13.Bf3 f5 (13...Qd7 14.g3=) 14.d4+= e4 15.Be4 fe4 16.d5 Bf5 17.dc6 bc6 18.Ne4 d5 (18...a5!?+=) 19.cd5+/– cd5 20.Qc3 Rf7 21.Ng3 Be4 (21...Bd7!?+/–) 22.Ne4+– de4 23.Qc6 Bd6 (23...a5 24.Qe4 ab4 25.ab4+–) 24.Qe4 Rb8 (24...a5 25.b5+–) 25.Bd4 Qg5 (25...Rb5 26.Bc3+–) 26.f4 Qh5 27.Bc3 Rbf8 (27...Qb5 28.Rf3 Re8 29.Qb1+–) 28.Rf3 Re7 (28...Qf5 29.Qc4+–) 29.Qd4 Rd8 (29...Rff7 30.Rg3+–) 30.Rg3 Rdd7 (30...Qf7 31.Qd3 Qb3 32.Rb1+–) 31.Qc4 Kf8 (31...Kh7 32.Qa6 Qd5 33.Qe2+–) 32.Qa6 1–0. Janek – Bonubo, internet free game, 2017.

6.a3 Be6 7.Be2 Be7 8.d4 ed4 9.ed4 Bf5 (better is 9...d5!? 10.c5 0–0=) 10.d5+= Na7 (10...Ne5!?+=) 11.0–0+/– 0–0 12.Nd4 Bg6 13.f4 Nd7?? (better is 13...h6+/–) 14.f5+– c5 15.dc6 (15.fg6?! cd4 16.gh7 Kh7 17.Qd4 Bf6 18.Bd3 Kg8+–) 15...bc6 (15...Nc6 16.fg6 hg6 17.Nc3+–) 16.fg6 hg6 17.Nc3 Bf6 18.Qd2 Ne5 (18...Re8 19.Rad1+–) 19.Ne4 Re8 20.Rad1 Qd7 (20...Nc8+–) 21.Rf6 (21.Rf6 Nc8 22.Nb3+–) 1–0. Kural,A. Serhat (2135) – Balkanci,Guven (1835), 12th AfroAsia Zonal Champs Prelim Group, 2009.

6.a3 Bf5 7.Nc3 Be7 8.Be2=.

6.a3 Bg4 7.Qc2 Bf3 (7...Be7 8.Be2+=) 8.gf3= Qd7 (8...Rg8 9.b5 ab5 10.cb5=) 9.Rg1 (9.b5 ab5 10.cb5 Na7=) 9...g6 (9...Rg8!?=) 10.f4+= 0–0–0 (10...Qe6!? 11.fe5 Ne5=) 11.b5+/– ab5 12.cb5 Na7 (better is 12...Ne7+–) 13.fe5 de5 14.Be5 Bg7 (14...Qe7 15.d4 Kb8+–) 15.Bh3! (15.Bh3 Nb5 16.Bd7 Kd7 17.Qb2+–) 1–0. pcmvr (2530) – tommyk (1945), net–chess.com, 2006.

6.a3 Bg4 7.h3 Bf3 (7...Be6 8.Be2=) 8.Qf3 Be7 9.Nc3 0–0 10.Bd3 Kh8 11.g4 (11.0–0 Kg8+/–) 11...h6 (11...Kg8!?+=) 12.h4+/– Qd7 13.Nd5 Qg4 (better is 13...Nd5!? 14.cd5 Nd8+/–) 14.Qg4+– Ng4 15.b5 (15.Nc7?! Rac8 16.Nd5 Nf6+/–) 15...ab5 16.cb5 Ra5 (better is 16...Nf6 17.Nf6 Bf6 18.bc6 bc6+–) 17.Bc3 (17.bc6?! Rd5 18.Be2 f5 19.cb7 Rb8+=; 17.Nc7?! Nb8 18.Bc3 Ra4+–) 17...Ra7 (17...e4 18.Be2 (18.bc6?! Rd5 19.Be4 bc6+–; 18.Ne7?! Ne7 19.Ba5 ed3+–) 18...Bf6 19.Nf6 (19.Bg4?! Bc3 20.Nc3 Ne7+–; 19.bc6?! Rd5 20.Bg4 Bc3 21.dc3 b6+/–) 19...Nf6 20.bc6+–) 18.bc6 Bd8 19.cb7 Rb7 20.f3 Nf6 21.Nf6 Bf6 22.e4 (22.Be4 Ra7+–) 22...Ra8 (22...Rfb8 23.a4+–) 23.a4 c6 24.a5 d5 25.Ke2 Rb3 26.a6 Rbb8 (26...Kg8 27.ed5 cd5 28.Rhb1 Rb1 29.Rb1+–) 27.Rab1 Rb1 28.Rb1 (28.Bb1?! Ra6 29.h5 d4+/–) 28...d4 (28...g6+–) 29.Bb4 Bd8 30.Bd6 Bh4 (30...f6+–) 31.Rb8 (31.Rb8 Rb8 32.Bb8+–) 1–0. Woelfelschneider,Peter – Broszeit, 2009.

6.a3 g6 7.Bd3 Bg7 8.Nc3 Be6 9.0–0 Qd7 10.Ng5 h6 (10...0–0 11.f4=) 11.Ne6+= Qe6 12.Qb3 0–0 Black prepares e4 13.Nd5 Qd7 (13...Ne8 14.Be4+=) 14.f4 e4?? (better is 14...Nd5 15.cd5 Ne7+=) 15.Bf6+– (15.Nf6?! Bf6 16.Be4 Bb2 17.Qb2 f5 18.Bd5 Kh7+–) 15...ed3 16.Qc3 (16.Qd3?! Kh8+–) 16...Qf5 (16...Bh8 17.Bh8 f5 18.Nf6 Rf6 19.Bf6+–) 17.Bg7 Rfc8 (17...f6 18.Bf8 Rf8+–) 18.e4 Qe6 19.f5 gf5 20.ef5 Qe2 21.Rfe1 Nd4 22.Qd4 1–0. Speedy – wernt, internet, 2017.

6.b5 ab5 7.cb5= Nb4 8.a3 Nbd5 9.Be2 Be7=+ 10.0–0 0–0. algernon (2320) – nhathuy (2310), net–chess.com, 2004.

6.b5 ab5 7.cb5 Nb4 8.Qb3 Nbd5 9.Bc4+= Be6 10.Nc3 c6 11.Ng5 Qd7 12.Ne6 fe6 13.bc6 bc6 14.e4 Nc7 15.Qb7 d5 16.ed5 ed5 17.Bb3 Bd6 18.0–0?? Ke7 19.Qb6 d4 20.Rfe1 dc3 21.Bc3 Ncd5 22.Qd4 Kf7 23.Qh4 Rhe8 24.f4 Bc5 25.Kh1 Qg4 26.Qg4 Ng4 27.g3 Nf2 28.Kg2 Kf8 29.Be5 Nd3 30.Rf1 Re7 31.Rf3–/+ Ne5 32.fe5 Ke8 33.Raf1? Re5–+ 34.Rf7 Ra7 35.R7f3?! Re2 36.Kh3 Rd2 37.Rc1 Ra5 0–1. Loulou – MERLION_alias_LKY, playchess.de, 2002.

6.b5 ab5 7.cb5= Ne7 8.a4 g6 (8...Ng6 9.a5=) 9.d4 Bg7 (9...e4 10.Nfd2=) 10.de5+= de5 (10...Ng4!?+=) 11.Qd8+/– (worse is 11.Ne5 Qd1 12.Kd1 Ng4 13.Ng4 Bb2+=) 11...Kd8 12.Ne5 Re8 (better is 12...Ke8!?+/–) 13.Nf7+– Kd7 14.Nc3 (14.Bc4 Nf5+–) 14...Rf8 (14...Nfd5 15.Nd1 Bb2 16.Nb2+–) 15.Rd1 (15.Ne5 Ke8+–) 15...Ke8 16.Ne5 Be6 (16...Nh5 17.f4+–) 17.Bc4 Bc4 18.Nc4 Kf7 (18...Nh5 19.b6 Bc3 20.Bc3 Ra4 21.Rd4+–) 19.0–0 (19.a5 Ng4+–) 19...Kg8 (19...Rfd8 20.a5 Nd7 21.f3+–) 20.Ne5 (20.e4 Rfd8+–) 20...Nf5 (20...Ne8 21.Nd7 Rf7 22.Nc5+–) 21.Nd7 (21.Rfe1 Ne8 22.Nd7 Rf7+–) 21...Nd7 22.Rd7 Rac8 (22...Rf7 23.Rfd1 Bc3 24.Bc3 Ra4 25.Rf7 Kf7 26.Rd7 Ke6 27.Rc7+– (27.Rh7?! Rc4 28.Be1 b6+/–)) 23.a5 Nd6 24.b6 (24.Rd1 Rf7 25.Rf7 Kf7+–) 24...cb6 (24...Rf7 25.Rc7 Rfc7 26.bc7 Rc7 27.Nd5+–) 25.ab6 (25.Rd6 Bc3 26.Bc3 Rc3 27.ab6 Rc2+–) 25...Bc3 26.Bc3 Rc3 27.Rd6 Rb3 (27...Rc2 28.h4+–) 28.Rc1 Rf7 (28...Rb2 29.f4 Rb3 30.Kf2+–) 29.h3 Kg7 30.Rc7 Rc7 31.bc7 Rc3 32.Rd7 Kh6 (32...Kf6 33.Rh7 Rc1 34.Kh2+–) 33.Kf1 (33.f4 b5+–) 33...b6 (33...g5 34.Ke2+–) 34.Ke1 (34.f4 b5+–) 34...b5 (34...g5 35.Kd2 Rc5 36.f4+–) 35.Kd2 b4 36.Rd4 (better is 36.f4 Rc5 37.Kd3 b3+–) 36...Rc7 37.Rb4 Rf7 38.f4 Kh5 (38...Kg7 39.g3+–) 39.g4 (better is 39.g3!? Ra7+–) 39...Kh4 40.g5 (40.Ke2 Kh3 41.Kf3 h5 42.gh5 gh5+–) 40...Kh3 41.Rb1 Kg4 (41...Ra7 42.Ke2+–) 42.Rg1 (42.Ke2 Rc7+–) 42...Kf5 (42...Kf3 43.Rf1 Ke4 44.Ke2+–) 43.Kd3 (43.Ke2 Rb7+–) 43...Rd7 (43...Ra7 44.Rd1+–) 44.Ke2 Ke4 45.Rd1?? (better is 45.Rb1+–) 45...Rd1–+ 46.Kd1 Ke3 47.Ke1 Kf4 48.Kf2 Kg5 49.Kg3 h5 50.Kh3 Kf4 51.Kh4 g5 52.Kh3 (52.Kh5 Kf5 53.Kh6 g4 54.Kg7 Ke6 55.Kh6 g3 56.Kg5 g2 57.Kf4 g1Q 58.Ke4 Qg4 59.Kd3 Qd1 60.Kc4 Ke5 61.Kc3 Qd4 62.Kc2 Qc4 63.Kd2 Ke4 64.Kd1 Qc3 65.Ke2 Qc2 66.Ke1 Ke3 67.Kf1 Qf2) 52...g4 (52...Kf3 53.Kh2 g4 54.Kg1 h4 55.Kh2 g3 56.Kg1 g2 57.Kh2 Kf2 58.Kh3 g1Q 59.Kh4 Qg6 60.Kh3 Qg3) 53.Kg2 h4 Black plans g3 54.Kg1 Kf3 55.Kh2 (55.Kf1 Kg3 56.Kg1 Kh3 57.Kh1 g3 58.Kg1 g2 59.Kf2 Kh2 60.Kf3 h3 61.Kf4 Kg1 62.Kg4 Kf2 63.Kg5 g1Q 64.Kf5 h2 65.Ke4 h1Q 66.Ke5 Qg5 67.Kd4 Qhd5 68.Kc3 Qgd2) 55...Kf2 (55...g3 56.Kg1 g2 57.Kh2 Kf2 58.Kh3 g1Q 59.Kh4 Qg6 60.Kh3 Qg3) 56.Kh1–+ g3 ˝–˝. Nautiluschess – Elmerson, ICS blitz, 2000.

6.b5 ab5 7.cb5= Ne7 8.Be2 Ned5=.

6.b5 ab5 7.cb5 Ne7 8.Be2 Be6 9.a3 Ned5 10.0–0=.

6.b5 Nb8 7.Nc3 (7.Be2 ab5 8.cb5 Nbd7 9.0–0 Be7 10.Qc2=; 7.ba6 Na6 8.Nc3 Bg4 9.Be2 e4 10.Nd4=; 7.d3 ab5 8.cb5 Be7 9.Be2 0–0 10.0–0=) 7...ab5 8.cb5 Nbd7 9.Bc4 e4 10.Nd4=.

6.b5 Ne7 7.ba6 ba6 8.Nc3=.

6.b5 Ne7 7.Nc3 ab5 8.cb5 Ng6 9.e4 d5 10.ed5=.

6.b5 Ne7 7.c5 e4 8.Ng5 d5 9.ba6 ba6 10.d3+=.

6.b5 Ne7 7.Be2 ab5 8.cb5 Ned5 9.0–0 Be7 10.Qc2=.

6.Nc3 Nb4 7.Qb3 Nc6 =.

6.d4 e4 7.Nfd2 Nb4 8.Qa4 Nc6 9.d5+/–.

6.d4 e4 7.Nfd2= Be7 8.Nc3 Bf5 9.Qc2 a5 10.ba5+=.

6.d4 e4 7.Nfd2 Bg4 8.Qc2 Bf5 9.a3 Be7 10.Nc3 0–0 11.Nde4 Ne4 12.Ne4 Bg6 13.Bd3 Re8 14.Nc3 Bd3 15.Qd3 Bf6 16.0–0 Rb8 17.Nd5 b5 (better is 17...Bh4+–) 18.Rfc1 Na7 19.cb5 c6 (19...ab5 20.Rc7 Nc8+–) 20.bc6 Rc8 (20...Rb5 21.Qf5 Qc8 22.Nf6 gf6+–) 21.Qa6 Nc6 22.Rc6 Rc6 23.Qc6 Bg5 (23...Bh4 24.b5 f5 25.a4+–) 24.a4 Qb8 25.b5 Rc8 26.Qd7 Rd8 (26...Re8 27.b6+–) 27.Qf5 Bh6 (27...h6 28.f4 Bh4 29.Qg4+–) 28.Ne7 Kh8 29.Nc6 Qc7 30.Nd8 Qd8 31.Rc1 1–0. marekt – cojimero07, Yahoo, 2005.

6.a3 Be7

7.Qc2 0–0 8.d4 e4 9.Nfd2+=.

7.Qc2 Bg4 8.Nc3 (8.Be2 Qd7=) 8...Bf3 9.gf3 d5 (9...0–0 10.Rg1=) 10.cd5 (10.b5 ab5 11.cd5 Nd5 12.Bb5 0–0=) 10...Nd5 11.Nd5 Qd5 12.Bd3 0–0–0 (12...Qd6!?+=) 13.Be4+/– Qd6 14.Rc1 (14.Bc6 bc6 15.f4 ef4 16.Bg7 Rhg8+/–) 14...g6 (14...Bf6!?+=) 15.Bc6 (15.f4 f6 16.Bc6 bc6 17.fe5 fe5+/–) 15...Qc6 (15...bc6!? 16.f4 Qd5 17.e4+–) 16.Be5 f6 17.Qd1 Qb6? (better is 17...Qc1 18.Qc1 fe5+–) 18.Rc7 Qc7 19.Bc7 Kc7 20.Ke2 (20.Qc2 Kb8+–) 20...Kb8 (20...Rd6 21.d4+–) 21.Qb3 (21.d4 b5+–) 21...Rd7 (21...f5 22.e4+–) 22.Rc1 (22.d4 Rc8+–) 22...Rhd8 (22...Re8 23.f4+–) 23.d4 1–0. pcmvr (2225) – nhathuy (2125), net–chess.com, 2006.

7.Nc3 0–0 =.

7.Be2 0–0 8.Nc3 Bd7 9.Bd3 (9.d4 e4 10.Ng5 Bf5+=) 9...Bg4 10.h3 Bh5 11.0–0 e4 (better is 11...Re8!?=) 12.Ne4+/– Ne4 (12...a5 13.Qc2 Bf3 14.gf3 ab4 15.ab4 Ra1 16.Ra1 Nb4 17.Nf6 Kh8 18.Qc3 Nd3 19.Nh7+– (19.Qd3?! Bf6 20.Qb3 Bb2 21.Qb2 Qg5 22.Kh2 b6=)) 13.Be4 Bf6 14.Qb3 (14.d4 Qe7 15.Qd3 Bg6 16.Bg6 fg6+–) 14...Re8 15.Bd5 Ne7 (better is 15...Bb2!? 16.Qb2 Rb8+/–) 16.Bf6+– gf6 17.Bb7 Rb8 (17...Ra7 18.Be4+–) 18.Ba6 Bg6 (18...Bf3 19.gf3 c6 20.Qd3+–) 19.d3 White prepares the advance b5 19...Nc6 (19...Ra8 20.b5+–) 20.Bb5 Re7 (20...Rb6+–) 21.Bc6 Rb6 (21...f5 22.Rfe1+–) 22.b5 d5 (22...f5 23.a4 f4 24.e4+–) 23.cd5 Kg7 (23...Rb8 24.a4+–) 24.a4 Re5 (24...Rb8 25.a5 Qd6 26.Qa3+–) 25.Ne5 fe5 26.a5 Rc6 27.bc6 f6 28.a6 Qd6 29.a7 Bd3 30.Qd3 Qc5 31.a8Q Qe7 32.Qc8 Qd6 33.Qg4 Kf7 34.Qh7 1–0. mrkt – jtlr, internet, 2009.

7.Be2 e4 8.Nd4 =.

7.Be2 Bf5 8.d3= 0–0 9.0–0 e4 10.Nd4 Nd4 11.ed4 d5 12.c5 Qd7 13.Bc1 (13.Nc3 c6+=) 13...a5–/+ 14.ba5 Ra5 15.Nc3 c6 (15...b6 16.de4 de4 17.cb6 cb6 18.Be3–/+) 16.Bf4+= Rfa8 17.a4 Bd8 18.h3 (18.Qd2 R5a7=) 18...R5a7 19.f3 Ba5 20.Na2 (20.Qd2 e3 21.Be3 Re8+=) 20...Bg6 (20...Re8 21.Qb3–/+) 21.Be5 Bd8 (better is 21...e3!?–/+) 22.Nc3= ed3 23.Bd3 b6 24.Bg6 hg6 25.Rf2 (better is 25.cb6!? Bb6 26.Re1=) 25...bc5–/+ 26.dc5 (26.Rb2 c4–/+) 26...Be7 27.Bd4 Ra5 28.Rd2 (28.Rb1 Bc5 29.Rc2 Qa7 30.Bc5 Rc5–+) 28...Qa7 29.Kh1 Bc5 30.Ne2 Bd4 31.Nd4 Qc7 (31...Ra6 32.Re2–+) 32.Rda2 (32.Rc2 Ra4 33.Rac1 Nh5 34.Nc6 Ng3 35.Kg1 Ra2–/+) 32...Qd6 (32...c5 33.Nb5 Qb6 34.Qd2–+) 33.Nb3 (33.Rc1!?–/+) 33...R5a6–+ 34.Qc2 Nd7 35.Rc1 (35.a5 c5–+) 35...c5 36.Raa1 (36.Rca1 c4 37.Nd4 Nc5–+) 36...c4 37.Nd4 Nc5 38.Qd1 (38.Nb5 Qd7 39.Rcb1–+) 38...Nd3 39.Qd2 (39.Rc2 Qe5 40.Qg1 Ra4 41.Ra4 Ra4 42.g4–+) 39...Qc5 (39...Nc1 40.Rc1 Ra4 41.Qe1–+) 40.Qc3?? (better is 40.Qd3! Ra4 41.Ra4 Ra4 42.Qe3+=) 40...Re8 (40...Nc1 41.Rc1 Ra4 42.Nc2–+) 41.Kh2 (41.Rcb1–+) 41...Qd6 (41...Nc1!? 42.Rc1 Ra4 43.f4–+) 42.g3 Qe5 (42...Nc1 43.Qc1 Qb4 44.Qd1–+) 43.a5?? (43.Rd1 Rb8 44.Ra2 Rab6–+) 43...Qf6 (43...Nc1 44.Rc1 Qc7 45.Kg2–+) 44.Rab1?? (44.Rd1 Re3 45.Rab1 Qe7–+) 44...Re3 (better is 44...Nc1 45.Rc1 Rea8 46.Kg2–+) 45.Rc2? (45.Rb8 Kh7 46.Rg1–+) 45...Qe5 46.Qa1 Ne1 47.Rf2 c3 (47...g5 48.Qb2 Kh7 49.Nc2–+) 48.Qa4 (48.Re1 Qd4 (48...Re1?! 49.Qc3 Ra8 50.Qd2–+) 49.Rb1 Qc5–+) 48...Nf3! 49.Nf3 (49.Nf3 Qe4 Double attack (49...Qe4 Decoy); 49.Rf3 Rf3 Combination) 49...Rf3! 50.Rg2 (50.Rf3 Qe4 Double attack (50...Qe4 Decoy)) 50...Rff6 (50...Raf6 51.Qb5 Kh7 52.Rbg1–+) 51.Qb5 Rfc6 52.Re2 Qd6 53.Re8 (53.Qa4 Ra8–+) 53...Kh7 54.Qa4 (54.Rb4 g5 55.Re1 Ra5 56.Qa5 Ra6 57.Rh4 gh4 58.Qc3 Ra2 59.Kh1 hg3 60.Qd3 Qg6 61.Qg6 Kg6–+ (61...fg6?! 62.Rd1–+)) 54...Rc4 55.Qc2 Re4 (better is 55...Rb4 56.Rd8 Rb1 57.Rd6–+) 56.Re4 de4 57.Qc3 Qd5 58.Ra1 f5 (better is 58...Rf6!? 59.Qe1 Rf3–+) 59.h4–/+ Rc6 60.Qe3?? (better is 60.Qb2 Qe6 61.Ra3–/+) 60...Rc2–+ 61.Kh3 (61.Kh1 Qe5 62.Rb1 Qa5–+) 61...Qe5 (better is 61...f4 62.Qf4 Qe6 63.Qg4 Rh2 64.Kh2 Qg4–+) 62.a6?? (62.Re1–+) 62...Qa1 0–1. Tagirov,Kajum K (1895) – Gataullin,Artur (2065), Championship Respublik Bashkortostan, 2010.

7.Be2 h6 8.0–0= 0–0 9.Nc3 =.

7.Be2 h6 8.0–0= 0–0 9.d3 b5 10.Nfd2 Be6 11.Bf3 Qd7 12.cb5 ab5=+ 13.Nc3 Rab8 14.Qc1 d5=+ 15.Ne2 Rb6 16.Bc3 d4 17.ed4=+ ed4 18.Bb2 Qd6 19.Bc6= Rc6 20.Qd1+= Ng4 21.g3= Bf6 22.Ne4+= Qe5?? 23.Nf6?? Qf6+/– 24.Bd4 Qg5 25.Nf4 Bf5 26.Bc5 Rd8 27.Qf3 Ne5+= 28.Qd1?? Nd3 29.h4 Qf6–/+ 30.Nd3 Rd3 31.Qe2 Re6 32.Qa2?? Qg6 33.Rfe1?? Bh3 34.Re6 Rg3?? 35.fg3+– Qg3 36.Kh1 Qf3? 37.Kg1 fe6?? 38.Qf2+– Qd5 39.Re1 Qb3 40.Qe3 Qe3 41.Re3 Bg4 42.Kg2 Kf7 43.Kg3 h5 44.Rd3 Ke8 45.Rd4 g6 46.Rf4 Bf5 47.Kf3 e5 48.Rf5! gf5 49.Bf2 Kd7 50.Ke3 Kc6 51.Kd3 e4?? 52.Kd4+– Kd6 53.Bg3 Kc6 54.Bf4 Kb6 55.Be3 Kc6 56.Ke5 Kd7 57.Kf5 Kc6 58.Ke4 Kb7 59.Kf5 Kc6 60.Kg5 Kd5 61.Kh5 Kc4 62.Kg5 Kb3 63.h5 (63...c5 64.bc5 b4 65.ab4 Kc4 66.h6 Kd5 67.h7 Ke5 68.h8Q Kd5 69.Qd4 Kc6 70.Qd3 Kc7 71.Qd6 Kc8 72.Bf4 Kb7 73.b5 Kc8 74.Qc7#) 1–0. hal1958 – SHOOTER, playchess.de, 2003.

7.Be2 h6 8.0–0= 0–0 9.Re1 Nh7 (better is 9...e4!? 10.Nd4 Nd4 11.ed4 d5+=) 10.Qc2 Ng5 11.Nc3 Nf3 12.Bf3 (worse is 12.gf3 Bh4+=) 12...f5 13.Bd5 Kh8 14.d3 Bf6 15.f4 (better is 15.Bf3!?+/–) 15...ef4= 16.ef4 (16.b5 Ne5 17.ef4=) 16...Bd4 (better is 16...Nd4 17.Qd1 c6+=) 17.Kh1+= Bd7 18.Re2 (18.Bf3 Bf6 19.Nd5 Nd4+=) 18...Qh4 19.g3 Qh5 (19...Qf6 20.Bg2 Rae8 21.Rae1+=) 20.Rae1 (20.b5 ab5 21.cb5 Na5+/–) 20...Rae8 (20...Bf6 21.Na4+=) 21.Kg2+= Re2 22.Re2 Bf6 23.Bf3 (23.Nd1!?+=) 23...Qf3= 24.Kf3 Nd4 25.Kf2 Nc2 26.Rc2 Bd4 27.Ke1 Re8 28.Re2 Re2 29.Ke2 Be8 30.Nd1 Bg1 31.h4 (31.Ne3 Bd7=) 31...Bh5+= 32.Kf1 Bh2 (32...Bb6 33.Nc3=) 33.Ne3= Bg3 34.Nf5 Bf4 35.Ng7 (worse is 35.Bg7 Kh7 36.Bd4 Bc1–/+) 35...Bg4? (better is 35...Bc1! 36.Bc1 Kg7=) 36.Ne6+/– Be5 37.Be5 de5 38.Nc7 Kg7 39.Nd5 Kg6 40.Kf2 Kh5 (better is 40...Bd7!?+/–) 41.Kg3+– Be2 42.d4 (42.Nf6 Kg6 43.Nd7 Kf5+–) 42...Bc4 43.Nf6 (43.Ne3!? Bb3 44.de5 Kg6+–) 43...Kg6+/– 44.de5 Kf5 45.Kf3 (45.Ng4 Be6 46.Nh6 Ke5+/–) 45...Ke5 (better is 45...Be6!?=) 46.Ng4+/– Kf5?? (better is 46...Kd4 47.Nh6 Kc3+/–) 47.Ne3+– (47.Ne3 Ke6 48.Nc4+–) 1–0. Franco Rincon,David (1685) – Gallego Romero,Manuel, Madrid ESP, 2014.

6.d4 ed4

7.b5 Na5 8.Bd4 Be6 9.Nbd2 ab5 10.cb5=.

7.Nd4 Nb4 8.Qa4 Nc6 9.Nc6 bc6 (9...Qd7 10.Bf6 gf6 11.Nd2=) 10.Qc6 Bd7 11.Qf3 c5 (11...Be7 12.Bd3=) 12.Bc3 (12.Bf6!? gf6 13.Bd3+/–) 12...Be7= 13.Bd3 0–0 14.0–0 Be6 15.Nd2 Bg4 (15...d5 16.Rab1=) 16.Qg3+= Qd7 17.Bf6 (17.h3 Bf5 18.Ne4 Qe6 19.Bf6 Bf6 20.Nf6 Qf6 21.Bf5 Qf5 22.Qd6 Rfd8+/–) 17...Bf6 18.Rab1 Be5 19.f4 Bc3 20.Ne4 f5?? (20...Bf5 21.Rb6 (worse is 21.Nc3 Bd3 22.Nd5 Qe6–/+) 21...Be4 22.Be4+=) 21.Nf2 (better is 21.Nc3 Rab8 22.Nd5+–) 21...d5? (21...Bh5!?=) 22.Ng4 (22.cd5 Rae8+/–) 22...fg4 23.Rfd1 (23.cd5 Qd5 24.Rfd1 Qa2 25.Be4+=) 23...Kh8? (better is 23...d4+=) 24.cd5+– h5? (24...Rfe8 25.Qh4 h6 26.Rb3+–) 25.e4 (25.Bg6!? Rf6 26.Bh5 Rh6 27.Bg4 Qd6+–) 25...Rab8 (25...Qd6 26.Qh4 Rf4 27.Qh5 Kg8 28.g3 Bd4 29.Kh1+/–) 26.Ba6 (26.Rb8!? Rb8 27.Qh4 Rb6+–) 26...Bd4 27.Kh1 Rb1 28.Rb1 Ra8? (better is 28...Qd6 29.Bc4 Rf4+/–) 29.Bb5 (29.Bc4 Rf8+–) 29...Qb7 (29...Qe7 30.e5 Ra2 31.Bc4+–) 30.Qb3 (30.Qh4 Qf7+–) 30...h4 (30...Rf8 31.Rf1+–) 31.Qc4 (31.Bc6 Qb3 32.ab3 Rf8+–) 31...Qb6 (31...Qf7 32.Rf1+–) 32.a4 (32.e5 Qh6 33.Rf1 Rd8+–) 32...g3 33.e5 (33.h3 Qg6 34.Qd3 Kg8+–) 33...Qg6 34.Qb3 c4? (34...gh2 35.Rf1 Bg1+–) 35.Bc4 Ra4 (35...Qg4 36.Bd3 g6+–) 36.Bd3 Qf7 37.Qa4 Qd5 38.Rb8 1–0. Trkn – Joachim, itsyourturn.com, 2000.

7.Nd4 Nb4 8.Qa4 Nc6 9.Nc6 Qd7 10.Bf6 gf6 11.Nd2=.

7.Nd4 Bd7 8.a3 (8.Nc6 Bc6 9.Nc3 d5 10.Qb3=) 8...Be7 (8...Nd4 9.Bd4 c5 10.Bb2=) 9.Be2 Qc8 (9...a5 10.0–0+=) 10.Nc3 0–0 11.0–0 Nd4 12.Qd4 Be6 13.Nd5 Bd8 14.e4 Re8 15.f3 (15.Qd3 Bd5 16.ed5 Ne4+/–) 15...c5 16.bc5 (16.Nf6?! Bf6 17.Qd2 Bb2 18.Qb2 Qc6=) 16...dc5 17.Qd2 (worse is 17.Nf6 Bf6 18.Qd2 Rd8+=) 17...Nd7 18.f4 f6 (18...Bd5 19.ed5 Bf6 20.Rad1+=) 19.a4 Bf7 20.Bg4 Be6 (20...Re4? 21.Bd7 Qd7 22.Nf6 Bf6 23.Qd7 Bb2 24.Rae1 Bd4 25.Kh1+–) 21.Bf3 Nb6 22.Qc2 a5 23.Rfd1 Bc7 (23...Bg4 24.Ra3+=) 24.e5 (24.Bh5 Bd5 25.cd5 Rd8+/–) 24...fe5+= 25.fe5 (25.Nc7 Qc7 26.Be5 Qf7+/–) 25...Bf5 (25...Bd5 26.Bd5 Nd5 27.Rd5=) 26.Be4 Be4 27.Qe4 Nd7?? (better is 27...Ra6+=) 28.Nc7+– Qc7 29.Qd5 (29.Qd5 Kh8 30.Qf7+–) 1–0. Buczinski,Henryk – Czaja,Antoni, Chorzow, 1966.

5.Nf3 e4

6.Nd4 c5

7.Nb3 A) 7...cb4 8.d3 Nbd7 (8...Bf5 9.N1d2 Nc6 10.Bf6 Qf6 11.Ne4 Be4=) 9.N1d2 ed3 10.Bd3 Be7 11.0–0 0–0+=; B) 7...Bf5 B1) 8.d3 Nc6 (8...cb4 9.N1d2 Nc6 10.Bf6 Qf6 11.Ne4 Be4=) 9.de4 Ne4 10.Qf3 Bg6 11.bc5 dc5+=; B2) 8.Bf6 Qf6 9.Nc3 Nc6 10.Nd5 Qd8 11.d3 cb4=; C) 7...Nc6 8.bc5 (8.Bf6 Qf6 9.bc5 dc5 10.Nc3 Qe5 11.Be2 Bd6+=) 8...dc5 9.Bf6 Qf6 10.Nc3 Qe5 11.d4 ed3+=.

7.Nc2 A) 7...cb4 8.Nb4 Be7 (8...Nc6 9.Nd5 Ne5 10.Nbc3 Nd5 11.cd5 Qa5+=; 8...Bf5 9.Bf6 Qf6 10.Nc3 Ra7 11.Nbd5 Qg6+=) 9.d3 Bg4 10.Be2 Be2 11.Qe2 d5=; B) 7...Nc6 8.Bf6 Qf6 9.Nc3 Qg6 10.d3 ed3 11.Qd3 Bf5=; C) 7...Bg4 8.Be2 Be2 9.Qe2 cb4 10.Nb4 Nc6 11.Nc6 bc6=.

7.bc5 dc5+=

8.Nb3 Nc6 (8...Bf5 9.d4 Nbd7 10.Be2 Bg6 11.Nc3 cd4=) 9.Bf6 Qf6 10.Nc3 Qe5 11.d4 ed3+=.

8.Nc2 Be7 (8...Bd6 9.d3 Bg4 10.Be2 ed3 11.Qd3 0–0=; 8...Bf5 9.Be2 Nc6 10.0–0 Bd6 11.f3 Qc7+=) 9.Be2 (9.d4 0–0 10.Be2 Nbd7 11.0–0 Qc7+=) 9...0–0 10.0–0 Nc6 (10...Be6 11.d4 ed3=) 11.d4 (11.f3 ef3+=) 11...ed3 12.Bd3 Ne5?? (12...Qd6 13.Bf6 Qf6 14.Qh5+=) 13.Be2?? (better is 13.Be5 Ng4 14.f4+–) 13...Qc7+= 14.Nc3 Be6 15.Ne1? (better is 15.Nd5 Bd5 16.cd5+=) 15...Nc4–+ 16.Bc4 Bc4 17.Nd3?? (17.Ne2–+) 17...Rad8 0–1. Latapie,Vincent – Dubos,Patricia, Mont de Marsan FRA Open Noel, 2006.

8.Ne2 Nc6 9.Bf6 gf6 10.Nbc3 f5 11.Rb1 Rb8=.

8.Ne2 Bd6 9.d3 ed3 10.Nc1 0–0 11.Bd3 Nc6+=.

8.Ne2 Bd6 9.Bf6 Qf6 10.Nbc3+=.

8.Ne2 Nbd7 9.Ng3= b6 10.Nc3 Bb7 11.Rb1 Rb8 12.Be2 Qc7 (12...h5 13.Qc2 (worse is 13.Nh5 Nh5 14.Bh5 Qg5–/+) 13...Qe7 14.f3 ef3 15.gf3=) 13.Qc2+= e4 seems the pivot of the position 13...Be7 (13...Qc6 14.0–0 Qe6 15.d3 ed3 16.Bd3+=) 14.Nce4 0–0 15.0–0 Ne4 16.Ne4 Qc6 17.f3 Qe6 18.Ng3 Bf6 19.Qf5 White gets the initiative 19...Rfe8 20.Bf6 Nf6 21.Qe6 Re6 (21...fe6? 22.Rb6 Nd7 23.Rb3+–) 22.d4 Nd7 (22...Re3 23.Rb6 cd4 24.Rfb1+–) 23.Kf2 g6 (23...Rbe8!?+/–) 24.d5+– Rd6?? (better is 24...Ree8+–) 25.Ne4 Rd5 26.cd5 (26.cd5 Bd5 27.Nc3+–) 1–0. Woelfelschneider,Peter – Wernitz, 2008.

5.Nf3 Be7

6.Qc2 0–0 7.Nc3 h6 8.h3 Bd7 9.a3 Qc8 10.Be2 Bf5 11.d3 Bh7 12.0–0 Nbd7 13.e4 c5 14.Rfc1 Rb8 15.Qd2 b5 16.Nd5 Nd5 17.cd5 Re8 18.a4 Qb7 19.bc5 (19.ab5!? Qb5 20.Rcb1+=) 19...Nc5+= 20.Rc5 dc5 21.Ne5 ba4 22.Bc3 Bf6 23.f4 c4 24.Nc4 Bc3 25.Qc3 Qa7 26.Kh2 Qf2 27.Qd2 Be4 28.de4 Re4 29.Bd1 Qd2 30.Nd2 Rf4 (30...Rd4 31.Nf3 Rd5 32.Ne5= (worse is 32.Ba4 Ra5 33.Ra2 Rb4+=)) 31.Nf3 Rf5 32.Ba4 Rd5 33.Bc6 Rd6 34.Ra6 g5 35.g4 Kg7 36.Bb5 ˝–˝. pvanr (2120) – lasker58 (2320), gameknot.com, 2013.

6.Qc2 Nc6 7.a3 0–0 =.

6.Nc3 0–0 7.a3 a5 8.b5 c6 9.d4 cb5 10.de5 de5 11.Qd8=.

6.Nc3 0–0 7.a3 a5 8.b5 c6 9.d4 e4 10.Nd2=.

6.Nc3 0–0 7.Bd3 a5 8.b5 Nbd7 9.0–0 Re8 10.Bf5=.

6.Nc3 0–0 7.Bd3 Nc6 8.a3 Bg4 9.0–0 Qd7 10.h3 Bh5 11.Ne4=.

6.Nc3 0–0 7.d4 e4 8.Nd2 d5 9.a3 c6 10.Be2=.

6.Nc3 0–0 7.d4 e4 8.Nd2 Bf5 9.a3 c5 10.bc5 dc5 11.d5=.

6.Nc3 0–0 7.Be2 a5 8.b5 Qd7 9.d4 Qf5 10.0–0=.

6.Nc3 0–0 7.Be2 e4 8.Ng5 d5 9.cd5 Bb4 10.Nge4 Ne4 11.Ne4=.

6.Nc3 c6 7.d4 e4 8.Nd2 d5 9.Qb3 a5 (9...0–0 10.a3+=) 10.b5= Bb4 11.Rc1 0–0 12.Ba3 Bc3 13.Qc3 Re8 14.h3 (14.Rb1 a4+=) 14...Be6= 15.Nb3 b6 16.bc6 Nc6 17.cd5 Bd5 18.Bb5 Rc8 19.0–0?? (better is 19.Qb2=) 19...Na7–+ 20.Qd2 (20.Qc8 Nc8 (20...Qc8?! 21.Rc8 Rc8 22.Ba6+=) 21.Be8 Qe8–+) 20...Rc1 21.Nc1 Nb5 22.Bb2 ˝–˝. Novikov,Konstantin Ivan (2215) – Grebenshikova,Tatiana (2020), Tula Sinitsin mem, 2007.

6.Nc3 Bf5 7.a3 0–0 8.d4 a5 9.de5 de5 10.Qd8=.

6.Nc3 Bf5 7.d4 0–0 8.a3 a5 9.de5 de5 10.Qd8=.

6.Nc3 Bf5 7.Be2 Nc6 8.d4 e4 9.Nd2 d5 10.a3=.

6.d4 0–0 7.a3 (7.Nc3 e4 8.Nd2 d5 9.a3 c6 10.Be2=; 7.Be2 e4 8.Nfd2 d5 9.a3 dc4 10.Bc4=; 7.d5 a5 8.b5 a4 9.Be2 Nbd7 10.0–0=; 7.Qc2 e4 8.Nfd2 d5 9.a3 c6 10.Nc3=) 7...e4 8.Nfd2 c6 9.Nc3 d5 10.Be2=.

6.d4 ed4 7.Nd4 0–0 8.Bd3 c5 9.bc5 dc5 10.Nf3 Nc6 11.0–0 Bg4 12.Be2 Qc7 13.h3 Rad8 14.Qc1 Be6 15.a3 Ne4 16.Nc3 Bf5 17.Ne4 Be4 18.Rd1 b6 19.Nd2 Bg6 20.Bf3 Ne5 21.Be5 Qe5 22.Bd5 Bf6 23.Rb1 Be7 24.Rb6 Bd6 25.Nf3 Qe7 26.Ra6 Rb8 27.Qc3 Kh8 28.a4 f6 29.Nh4 Bh5 30.g4 Bf7 31.Nf5 Be5 32.Qa3 Qd7 33.Qc5 Bd5 34.Qd5 Qd5 35.cd5 Rfc8 36.d6 g6 37.Ne7 Re8 38.Nc6 Bd6 39.Rd6 Rb1 40.Kg2 Rb2 41.Kf3 f5 42.Rd7 fg4 43.Kg4 Rf2 44.Raa7 h5 45.Kg3 Rf6 46.Rh7 Kg8 47.Rag7 Kf8 48.Ne7 Re7 49.Re7 Kg8 50.a5 1–0. phildo (1855) – bernardhgaskin, gameknot.com, 2014.

6.d4 e4 7.Nfd2 0–0 8.a3 Bf5 9.Nc3 c5 10.bc5=.

6.Be2 c6 7.Nc3 h6 8.Qc2 Bd7 9.0–0 0–0 10.d4 ed4 11.Nd4 Qc8 12.Rfd1 d5 13.a3 dc4 14.Bc4 Bg4 15.Be2 Be2 16.Qe2 c5 17.bc5 Bc5 18.Rac1 b6 19.Na4 Nbd7 20.Nb3 Qc6 21.Nac5 bc5 22.Bf6 Nf6 23.Rc5 Qa4 24.Qc4 Qa3 25.Ra5 Qb2 26.Nd4 Rfc8 27.Qf1 Ne4 28.f3 Qc3 29.Qe1 Nf6 30.Qc3 Rc3 31.Kf2 g6 32.Rda1+/– Re8 33.e4 Rd8 34.Ne2 Rc2 35.Ra6 Rdd2 36.Re1 Kg7 37.Raa1 Nd7 38.Rad1 Ne5 39.Rd2 Rd2 40.Kf1 h5 41.Nc3 Rc2 42.Nd5 Nd3 43.Rd1 Rc1 44.Rc1 Nc1 45.Kf2 Nd3 46.Ke3 Ne5 47.h3 Nd7 48.Kd4 f6 49.Nf4 Kf7 50.Kd5 h4 51.Nd3 g5 52.e5 Nf8 53.ef6 Kf6 54.Nf2 Kf5 55.Ne4 Ng6 56.Nd6 Kf4 57.Nf7 Ne7 58.Ke6 Nf5 59.Kf6 Ne3 60.Ng5 Ng2 61.Kg6 Kg3 62.Ne4 Kf3 63.Nd6 Ne3 64.Kh5 Kg3 65.Ne4 Kh3 (66.Ng5 Kg3 67.Ne4 Kf4 68.Kh4 Ke5=). Toth,Tamas (1900) – Lendak,Lajos (1995), Sarospatak–ch, 2000.

6.Be2 e4 7.Nd4 c5 8.Nc2 Nc6 9.bc5 dc5 10.0–0 Qb6 11.Nc3=.

6.Be2 Bg4 7.0–0 c6 8.Qb3 Qd7 9.Nc3 0–0 10.Rfd1 h6 11.d4 Qc7 (11...e4 12.Ne5 de5 13.de5=) 12.Rac1 (12.de5 de5 13.Ne5 Qe5+/–) 12...Rd8 (12...e4 13.Nd2 Be2 14.Ne2+=) 13.h3 Be6 (13...ed4 14.Rd4 Bh5 15.Qc2+=) 14.d5 (14.de5 de5 15.Ne5 Rd1 16.Nd1 a5+/–) 14...cd5 (better is 14...Bf5!?+=) 15.cd5+/– Bf5 (15...Bd7 16.Ne5! de5 17.d6 Bd6 18.Nd5 Nd5 19.Rc7 Bc7 20.Qd5+/–) 16.e4! Bh7 (16...Be4 17.Ne4 Combination; 16...Ne4 17.Ne4 Combination) 17.Na4 Nc6 18.dc6 bc6 19.Bc4 Bf8 20.Bd5! Nd5? (20...cd5 21.Rc7 Pinning (21.Rc7 Deflection; 21.Rc7 Clearance)) 21.ed5 c5 (21...Rdc8 22.Rc6 Qb7 23.Rdc1+–) 22.bc5 Rab8 23.cd6 Qd6 24.Be5 Rb3 25.Bd6 (25.ab3?! Qa3 26.Nb6 Re8= (worse is 26...Qb3 27.Bc7 Rd6 28.Nd2+/–)) 25...Rb5 26.Bf8 Rf8 (26...Kf8 27.Nc5+–) 27.Rc6 (27.d6 Be4+–) 27...Ra5 (27...Be4 28.Nc5 Bf3 29.gf3+–) 28.Nc5 Ra2 29.Ra6 Rc2 30.Nd7 Rd8 31.Nb6 (31.Ra7 Be4+–) 31...Rb2 32.Ra8 (32.Nd4 Rb8 33.d6 R2b6 34.Rb6 Rb6+–) 32...Ra8 33.Na8 Be4 34.Nc7 Rc2 (34...Bf3 35.gf3 Rb8+–) 35.d6 Bf5 (35...Bf3 36.gf3 Rb2 37.Na6+–) 36.Nd4 (36.Nd4 Rc7 37.dc7+–) 1–0. Turcot,Jean – Francoeur,Leonard, Charlesbourg Millenium op, 2004.

6.Be2 h6 7.0–0 0–0 8.Nc3 b6 9.d4+= e4 10.Nd2 Bb7? (better is 10...d5!? 11.cd5 Bb4 12.Nde4 Ne4 13.Ne4 Bb7+/–) 11.d5+– b5 (11...c5 12.a3+–) 12.Nde4 Ne4 (12...c5 13.Qb3 (13.cb5?! cb4 14.Nf6 Bf6+/–) 13...Ne4 14.Ne4+–) 13.Ne4 bc4 14.Qd4 Do you see the mate threat? 14...f6 15.Bg4 Nd7 16.Be6 Kh8 17.Qc4 Nb6 (17...Ne5 18.Qc2+–) 18.Qd3 a5 19.b5 Bc8 20.Bd4 (20.Bc8 Rc8 21.Ng3 Nd7+–) 20...Be6 21.de6 Qc8 (21...Re8 22.Bb6 cb6 23.Qd5+–) 22.Bb6 cb6 23.Qd5 Rd8 (23...Qe8 24.Rac1+–) 24.Rac1 Qb8 25.Rc6 Ra7 26.Rfc1 Qa8 (26...a4 27.a3+–) 27.Nc3 Rb7 28.Qe4 (28.Qf5 a4+–) 28...Rbb8 (28...Rf8 29.Qf5+–) 29.Nd5 Rb7 30.h3 (better is 30.Qd4+–) 30...Kg8 (30...Rg8+–) 31.Rc7 Qa7 (31...Kh8+–) 32.Ne7 Kf8 33.Qg6 Rc7 34.Qf7 1–0. pierre – tlethu, internet, 2010.

6.Be2 0–0

7.0–0 c6 8.Nc3 Bg4 9.Rc1 (9.a3 a5=) 9...Nbd7 (9...e4 10.Ng5 Be2 11.Qe2+=) 10.a3 e4 (10...Nb6 11.d3=) 11.Nd4 (11.Ng5 Be2 12.Qe2 d5 13.cd5 cd5=) 11...Be2 12.Qe2 (12.Nce2 Ne5=) 12...d5 (12...Ne5 13.f3 d5 14.cd5 cd5 15.Nf5=) 13.cd5 cd5 14.d3 Bd6 (14...a5 15.Nf5+=) 15.Nf5 Bb8? (15...Be5+=) 16.Ng3?? (better is 16.Nd5 ed3 17.Qd3+–) 16...b5 (16...Bg3 17.fg3 ed3 18.Qd3+=) 17.de4 (17.f4 ef3 18.Rf3 Be5=) 17...de4 (17...Bg3 18.fg3 de4 19.Rcd1=) 18.Nce4 Ne4 19.Ne4 Ra7? (19...Bh2 20.Kh2 Qh4 21.Kg1 Qe4 22.Rfd1+=) 20.Rfd1 (20.Bd4 Ra8 21.Qg4 Be5+–) 20...Qe7 (20...Bh2!? 21.Kh2 Qh4 22.Kg1 Qe4+/–) 21.Qg4 (21.Bd4 Rc7 22.Rc7 Bc7+–) 21...f5 22.Qg5 Nf6?? (better is 22...Ne5 23.Qe7 Re7 24.Be5 Be5+/–) 23.Nf6+– Rf6 (23...Kh8 24.Rc8! Rc8 25.Qf5 gf6 26.Bf6 Qf6 27.Qf6 Rg7 28.f4+–) 24.Bf6 (better is 24.Rc8 Rf8 25.Rdd8 Bd6 (25...Qg5?? 26.Rf8) 26.Rf8 Qf8 27.Qf5 h5+–) 24...Qf6 25.Rd8 Kf7 26.Qf6 gf6 (26...Kf6 27.Rc6 Kg5 28.Rb8+–) 27.Rb8 Rd7 (27...Kg6 28.Rc6+–) 28.Kf1 Rd3 (28...f4 29.ef4 Rd6 30.f5+–) 29.Ke2 Ra3 (29...Rd7 30.Rc6 f4 31.Ra6 Rd5 32.Ra7 Kg6 33.Rg8 Kf5 34.Rh7 Rd6+–) 30.Rc7 Ke6 (30...Kg6 31.Rg8 Kh6 32.Rf7 Rb3 33.Rf6 Kh5 34.Rf5 Kh4 35.Kf3 Rb4 36.g3 Kh3 37.Rh5 Rh4 38.Rh4) 31.Rb6 Kd5 (31...Ke5 32.Rc5 Ke4 33.Re6) 32.Rh7 (32.Rc5 Ke4 33.Re6) 32...Ra2 (32...f4 33.Rd7 Ke5 34.ef4 Kf4 35.Rf6 Ke5 36.Rdd6+–) 33.Kf3 (better is 33.Kd3 Ra3 34.Kc2+–) 33...Ke5 (33...Kc4 34.Rh4 Kb3 35.Rf6 f4 36.Rhf4 a5 37.ba5 Ra5+–) 34.Ra7 (34.Re7 Kd5 35.Rc7 Rf2 36.Kf2 Ke4 37.Rc5 f4 38.Re6 Kd3 39.Rd6 Ke4 40.Rd4) 34...a5 35.Rb5 Kd6 36.Rb6 (36.Rb6 Kd5 37.Ra5 Ra5 38.ba5+–) 1–0. Eralos (1975) – ocairic (1895), ajedrez21.com, 2001.

7.0–0 Nc6 8.b5 ab5 9.cb5 Nb4 10.e4 Ne4 11.Qb3 c5 (better is 11...Na2!? 12.Ra2 Nc5–/+) 12.a3= Be6 13.Qe3 Nc2 14.Qe4 Na1 15.Ba1 d5 16.Qc2 (worse is 16.Qe5 Bf6 17.Qe3 Ba1 18.Qc5 Re8–+) 16...e4 17.Ne1 b6 18.d3 f5 19.f3 Bf6 20.Bf6 Qf6 21.f4 (21.fe4!? Qd4 22.Kh1 fe4 23.de4 Rf1 24.Bf1 Qe4 25.Qe4 de4 26.Nc2+=) 21...Kh8 22.Kh1 Rad8 23.Qd2 d4 24.a4 Bd5 25.Na3 Qh4 26.Nc4 Bc4 27.dc4 Rfe8 28.g3 Qe7 29.Bh5 g6 30.Bd1 (30.Be2 d3 31.Nd3 ed3 32.Bd3 Qe3 33.Qe3 Re3–+) 30...d3 (30...e3!? 31.Qe2 d3 32.Nd3 Qe4 33.Qg2 Qg2 34.Kg2 Rd3 35.Be2–+) 31.Qe3 d2 (better is 31...Qe6!? 32.Qc1 e3–+) 32.Ng2+= Rd3 33.Qe2 Qd8 34.Ne3 Qd4 35.Nd5 Qc4 36.Nb6 Qd4 (36...Qb4!? 37.a5 Red8 38.Bc2 Qb5 39.Rd1–+) 37.a5–/+ c4 (37...Re3 38.Qg2 Re1 39.Rg1–+) 38.Na4 (38.Bc2 Rc3 39.Bd1 Rc1–+) 38...Re3 (38...Qd5!? 39.Nb6 Qb5–/+) 39.Qf2= Rd8 40.b6 c3 41.a6 (better is 41.Kg2=) 41...Qc4–+ 42.Kg2?? (better is 42.Qe3 Qf1 43.Qg1–+) 42...c2 43.Qe3 (43.Bc2 Qc2 44.b7 Rf3–+ (44...Qa4?! 45.Qe3 Qa6 46.Qc3 Kg8 47.Qb3 Kg7 48.b8Q Rb8 49.Qc3 Kh6 50.Qd2–+)) 43...c1Q (better is 43...Qf1! 44.Kf1 cd1Q 45.Kf2 Qa4 46.Qc3 Kg8–+) 44.Be2 d1Q 45.Rd1 Qe3 (45...Rd1 46.b7 Qe3 (46...Qa4?? 47.b8Q Kg7 48.Qc1 Rc1 49.Qb2 Kh6 50.Qc1+–) 47.b8Q Kg7 48.Qb2 Qcd4 49.Bd1 Qg1 50.Kh3 Qf1 51.Kh4 Qb2 52.Nb2 Qg2 53.Bg4 Qh2 54.Bh3 Qe2 55.g4 Qe1 56.Kg5 h6) 46.Rd8= (46.Bc4 Qf3 47.Kh3 Rd1 48.Nc3 Rg1 49.Be2 Rg3 50.hg3 Qh1) 46...Qg8 47.Rg8 Kg8 48.Bc4 Kf8 49.a7 Qf3 50.Kh3 Qg4 51.Kg2 Qf3 52.Kh3 Qg4 53.Kg2 Qf3 ˝–˝. Krsek,Tomas (2190) – Grussova,Helena, Open, Teplice CZE, 2008.

7.0–0 e4 8.Nd4 c5 9.Nc2 Nc6 10.bc5 dc5 11.f3=.

7.0–0 Bg4 8.a3 Nbd7 9.Nc3 Rb8 (9...a5 10.d4=) 10.d4+= ed4 11.ed4 (11.Qd4 Re8+=) 11...b6 (11...d5 12.c5=) 12.h3 Bf3 (12...Bh5 13.d5 Re8 14.Re1+=) 13.Bf3+/– (worse is 13.gf3 Nh5+=) 13...c5 14.Re1 cd4 15.Qd4 Ne5 16.Be2 Nc6 17.Qd1 a5 (17...Re8 18.Nd5+/–) 18.Nd5 Nd5 19.Qd5 Qc7 (19...Rc8 20.ba5 ba5 21.Bg4+/–) 20.Qf5 (20.Bf3 Ne5+/–) 20...g6 (20...ab4 21.ab4 Nb4 22.Qg4+=) 21.Qd5 (21.Qb5 Ne5+/–) 21...ab4 22.ab4 Nb4 23.Qd4 f6 24.Qd2 Nc6 25.Bf3 Ne5 26.Bd5 Kg7 27.f4 Nc4? (better is 27...Nf7+/–) 28.Bc4+– Qc4 (28...Rfe8 29.Bd5 Rbc8+–) 29.Re7 Rf7 30.Bf6! Kf6 (30...Kg8 31.Rc1 Qb3 32.Qd6 Re7 33.Qb8 Kf7+–) 31.Qd6 Kg7 32.Rf7 (32.Qb8?! Re7 33.Qb6 Qf4=) 32...Kf7 (32...Qf7 33.Qb8 Kh6+–) 33.Ra7 (33.Qb8?! Qd4 34.Kh2 Qa1 35.Qc7 Ke6 36.Qb6 Kf5+/–) 33...Kg8 (33...Rb7 34.Rb7 Qc7 35.Rc7 Ke8 36.Qe7) 34.Qb8 1–0. Janek – Vesely, internet, 2016.

7.0–0 Bg4 8.Nc3 Nc6 9.a3 Re8 10.d4 ed4 11.Nd4=.

7.0–0 Bg4 8.h3 Bh5 (8...Bf3 9.Bf3 e4 10.Be2 d5 11.cd5=) 9.Nc3 Nbd7 (9...e4 10.Ng5 Be2 11.Qe2=) 10.Re1 (10.d4 Re8 11.a3=) 10...h6 (10...d5 11.Nd5=) 11.d3 (11.d4=) 11...Rc8 12.a4 c6 13.b5 ab5 14.ab5 Ra8 15.Qc2 Qc7 16.Rec1 Bg6 17.Qd1 c5 18.Nd2 Nb6 19.Na4 Na4 20.Ra4 Ra4 21.Qa4 b6 22.Ra1 Rb8 23.Qb3 Ne8 24.Bf3 f5 25.Bd5 Bf7 26.Bc6 Nf6 27.Ra4 Be8 28.Bf3 Bg6 29.Qa2 Kf8 30.Ra7 Qd8 31.Bc6 Be8 32.Bf3 g5 (32...Bg6 33.Bc3 Kg8+/–) 33.Qa1 Bf7 (33...g4 34.hg4 fg4 35.Bb7+/–) 34.Bc6 Be6 (34...g4!?+/–) 35.d4 ed4 36.ed4 d5 (36...Ne8 37.Qe1 Kf7 38.dc5 dc5 39.Qe5 Qd2 40.Be8 (40.Qb8?! Qd1 41.Kh2 Qd6 42.Be5 Qb8 43.Bb8 Bc4+–) 40...Ke8 41.Qb8 (41.Qe6?! Qd1 42.Kh2 Qd6 43.Qd6 Bd6 44.Kg1 Be7+=) 41...Kf7 42.Qe5+–) 37.Qe1 (37.dc5 dc4 38.Be5 Ng8 39.Re7 Qe7+–) 37...Bf7 38.Qe5 dc4 39.dc5 (39.Re7 Qe7 40.Qb8 Kg7+–) 39...bc5 (39...Bc5 40.Qf6 Qf6 41.Bf6 g4+–) 40.Re7! Ng8 (40...Qe7 41.Qf6 (41.Qb8)) 41.Rd7 1–0. Kramer – Scheurer, Bezirksliga DDR, 1988.

7.0–0 h6 8.a4 (8.d4 e4 9.Nfd2 d5=) 8...Bf5 (8...e4 9.Nd4=) 9.Bc3 Nbd7 (9...Nc6 10.d4=) 10.d3 Re8 11.e4 Be6 12.Nbd2 Nf8 (12...c5 13.a5=) 13.d4 Ng6 14.Rb1 (14.a5 ed4 15.Nd4 Bd7+=) 14...Qc8 (14...ed4!? 15.Nd4 Bd7+=) 15.de5+/– de5 16.Ne5 Ne5 17.Be5 Rd8 (17...c5 18.bc5 Nd7 19.Bf4+/–) 18.Qc2 Ng4 (18...Nd7 19.Bc3+/–) 19.Bc3 c5 20.bc5 Bc5 21.h3 Nf6 (21...Nf2!? 22.Rf2 Bh3+/–) 22.Rfd1 (better is 22.Bf6 gf6 23.Rfd1+/–) 22...Bh3? (better is 22...Bd4+/–) 23.Bf6+– (23.gh3?! Qh3 24.Be5 Qh4+=) 23...gf6 (23...Rd6 24.Bh4 (worse is 24.gh3 Rf6 25.Qd3 Rf2+/–) 24...Rg6 25.g3+–) 24.gh3 Qh3 25.Qb3 (25.Rb7 Kh8 26.Bg4 Rg8 27.Rb8 Rab8 28.Nf1 Rg4 29.Ng3 Rg3) 25...Bf2 (25...Qh4 26.Qf3 Qg5 27.Qg2 b6+–) 26.Kf2 Qh2 27.Ke3 f5 28.Rg1 Kh7 (28...Kf8 29.Qb2 (29.ef5?! Re8 30.Kd3 Rad8 31.Kc2 Re2 32.Qb4 Rd6+/–; 29.Qb7?! Rab8 30.Qb8 Rb8+/–) 29...f4 30.Kf3+–) 29.Qb7 f4 (29...Rf8 30.Qe7 f4 31.Kf3 Qh3 32.Kf4+–) 30.Kf3 Qh5 (30...Qh3 31.Kf4 Qe6 32.Rb6+–) 31.Kf4 Qh4 32.Ke3 Qf6 33.Qb2 (33.Qb2 Qb2 34.Rb2+–) 1–0. Janek – Vassileos, internet free game, 2017.

7.a4 a5 8.b5 b6 (8...e4!? 9.Nd4 c5 10.bc6 bc6=) 9.d4 e4 10.Nfd2 d5 11.Nc3 c6 (11...Bf5 12.0–0+=) 12.0–0 (12.bc6 Nc6 13.cd5 Nd5 14.Nde4 Be6+=) 12...Bb7 (12...cb5 13.ab5 Bb4 14.f3+=) 13.bc6 Nc6 (13...Bc6 14.cd5 Bd5 15.Nd5 Qd5 16.Bc4+/–) 14.cd5+/– Nb4 15.Nde4 Nfd5 (15...Ne4 16.Ne4 Qd5 17.Bf3+/–) 16.Nd5 Bd5 (16...Qd5 17.Bf3 Qd7 18.Ng3+/–) 17.Nc3 f5 (17...Be6!?+/–) 18.Nd5+– Nd5 19.Bc4 Kh8 20.Qb3 (20.Qf3 Nb4+–) 20...Nb4 21.f3 Bf6 (21...Qe8 22.e4+–) 22.Rad1 Rc8 (22...Qe8 23.Rfe1+–) 23.Be6 White terminates the opponent with strong threats 23...Rc7 (23...Rb8 24.Bf5 b5 25.ab5 Rb5 26.e4+–) 24.e4 White prepares d5 (24.Bf5 Qd5 25.Qd5 Nd5+–) 24...fe4 25.fe4 The passed pawn on e4 will quickly become a dangerous weapon 25...Nc2 (25...Be7 26.Rf8 Qf8 27.e5+–) 26.e5 (26.Qb6 Ne3 27.Rfe1 Nd1–+) 26...Bg5 (26...Be7 27.Rf8 Bf8 28.Kh1+– (28.Qb6?! Ne3 29.Rb1 Ng2+–)) 27.d5 Ne3 (27...Rf4 28.Rf4 (28.Qb6 Rf1 29.Kf1 Rf7 30.Bf7 Qb6–+) 28...Bf4 29.Rf1 Be3 30.Kh1+–) 28.Rf8 Qf8 29.Ba3 Qf4 30.Qb5 Threatening mate: Qe8 30...h6 (30...g6 31.Qb6 Rc8 32.Bc8 Nd1+–) 31.Qe8 1–0. pierre – plumbob, ChessWorld.net, 2005.

7.a4 e4 8.Nd4+=.

7.Nc3 Nc6=.

7.Nc3 e4 8.Ng5 d5 9.cd5 Bb4 10.Nge4 Ne4 11.Ne4=.

7.Nc3 Bf5 8.d4 e4 9.Nd2 c6 10.g4 Bg6 11.h4 h5N 12.g5 Nfd7 (12...Ne8!?+/–) 13.Bh5+– d5 (13...Bh5 14.Qh5 f5+–) 14.Bg6 fg6 15.cd5 Bb4 16.Qb3 Bc3 17.d6 (17.Qc3?! cd5 18.Qb3 Qa5+/–; 17.Bc3?! Rf7+–) 17...Kh7 18.Bc3 b5 (18...b6 19.Ne4 Qe8 20.Qc2+–) 19.Ne4 Re8 (19...Qe8 20.Qc2 Kg8+–) 20.h5 gh5 (20...Ne5 21.de5 Qd7+–) 21.Qf7 Re4 (21...Nf6 22.Nf6 Qf6 23.Rh5 Qh6 24.Rh6) 22.Rh5# 1–0. marre – oppo111, internet, 2010.

7.Nc3 h6 8.0–0 Bf5 9.a3 Nbd7 10.d4 ed4 (10...Re8 11.de5 de5 12.Na2=) 11.ed4 (11.Qd4 Re8+=) 11...Re8 12.Re1 Nf8 (12...d5 13.Qb3+=) 13.Nh4 (13.d5 Ng6+=) 13...Bh7= 14.d5 c6 (14...Nd5!? 15.Qd5 c6=) 15.dc6+= bc6 16.Nf3 Qc7 17.Rc1 Ne6 18.Bd3 Bd3 19.Qd3 Red8 20.Nd5 cd5 21.cd5 Qd7 (better is 21...Nc5!? 22.Qc4 Qb7 23.Bf6 Bf6 24.bc5 dc5+=) 22.de6+– fe6 23.Nd4 e5 24.Nc6 Rf8 25.Qg6 (25.Be5 de5 26.Qd7 Nd7 27.Ne7 Kf7+–) 25...Qe8 (25...Nd5 26.Qe4 Nf4 27.Rcd1+/–) 26.Ne7 (better is 26.f4!?+/–) 26...Qe7+= 27.f4 Nd7 (27...Qa7 28.Kh1 ef4 29.Re6=) 28.g3 (28.Rc6 Rf6 29.Qe4 Raf8 30.Qd5 Qf7 31.Qf7 Kf7 32.Ra6 Re8+–) 28...Rf6 (28...a5 29.b5+=) 29.Qe4 Re6?? (better is 29...Re8+=) 30.Qa8+– Kh7 31.Qe4 g6 (31...Rg6 32.Rc7 Qd8 33.Qb7+–) 32.Rc7 Qe8 33.f5 (33.Qb7 Re7 34.fe5 Kg8+–) 33...gf5 34.Qf5 Kh8 35.Rec1 (35.Rec1 Kg7 36.Ra7+–) 1–0. Bartle,Georg (1710) – Toennies,Paul, Baden–ch AT3, 2005.

7.d3 Nc6 8.a3 Re8 9.0–0 Bf5 10.Nc3 Qd7 11.Nd5=.

5.Nf3 Bf5

6.Nc3 Nbd7 7.d4 e4 8.Nd2 Be7 9.Qc2 (9.Be2 d5 10.g4 Bg6+=) 9...0–0 (9...c6 10.f3=) 10.Nde4 (better is 10.a3+=) 10...b5?? (better is 10...Ne4 11.Bd3 d5 12.Nd5 c6=) 11.Nf6+– Nf6 12.Qf5 Qd7 (12...d5 13.cb5 Bb4 14.ba6 Re8+–) 13.Qd7 Nd7 14.cb5 a5 15.Nd5 Bd8 16.Bc3 (16.ba5 Ra5 17.Bc3 Ra4+–) 16...a4 17.Bc4 a3 (17...Nb6 18.Nb6 cb6 19.Rc1+–) 18.0–0 Nb6 (18...Re8 19.Rac1+–) 19.Nb6 cb6 20.Rfc1 Be7 (20...Re8 21.Bd5 Rb8 22.Bd2+–) 21.Bd5 Rac8 22.Bd2 Rb8 23.Rc7 Rfe8 24.Bc6 Rbc8 25.Ra7 Red8 26.Re7 Kf8 27.Ra7 1–0. Rush,Bradley – Ventura,Bob, RN–2012–0–00490, 2012.

6.d3 Nc6 7.a3 e4 8.Nd4 Nd4= 9.Bd4 c5 10.Bb2 b5 11.d4 Ng4?? 12.Be2 cd4?? 13.Bd4 bc4? 14.Bc4 Qc8? 15.Bd5+– Rb8 16.0–0 Nf6 17.Nc3?? Nd5+= 18.Nd5 Rb5? 19.Rc1+– Qc1 20.Qc1 Rd5 21.Qc6 (21...Bd7 22.Qd5+–) 1–0. Trkn – Rupert_Pupkin, itsyourturn.com, 2000.

6.d4 e4 7.Nfd2 c6 8.Be2 Be7 9.Nc3 0–0 10.g4 Bg6 11.h4 h6 12.g5 hg5 13.hg5 Nh7 14.Nde4 Ng5 15.Ng5 Bg5 16.Bd3 Qf6 17.Ne4 Qe7 18.Ng5 Qg5 19.Bf1 Nd7 20.d5 cd5 21.Qd5 Qd5 22.cd5 Ne5 23.Be5 de5 24.d6 Rad8 25.Rd1 f5 26.Bc4 Bf7= 27.Rh4 e4 28.Bd5 Bd5 29.Rd5 Rf6 30.d7 Rf7 31.Rf4 g6 32.f3 ef3 33.Rfd4 Re7 34.Kf2 Kg7 35.Kf3 Kf6 36.Rd1 Ke6 37.Rd6 Kf7 38.a4 Re6 39.R6d4 g5 40.a5 Kf6 41.R1d2 g4 42.Kf4 Kg6 43.Rc4 Re7 44.Rd6 Kh5?? 45.Rc5+– Red7 46.Rf5 Kh4 47.Rh6 1–0. Bonetti,Shane – diprog, ICC, 2002.

6.Be2 Bb1 7.Rb1+= b5 8.Qc2 Be7 9.cb5 ab5 10.Bb5+– Nbd7 11.a4 0–0 12.0–0 c5 13.bc5 Nc5 14.d4 ed4 15.Nd4 Qc7 16.Nf5 Rfc8 17.Rfd1 Qd8 18.Bf6 Bf6 19.Nd6 Rc7 20.Ne8 Nd7 21.Nc7 1–0. pcmvr (2560) – zekota (2105), net–chess.com, 2006.

6.Be2 Nc6 7.a3 Be7 8.0–0 0–0 9.d4 ed4 10.Nd4+= Nd4 11.Bd4 Rc8 12.Nd2 c5 13.Bb2 Qc7 14.Bf3 Rfd8 15.Re1 h6 16.e4 Be6 17.bc5 Qc5 18.e5 de5=+ 19.Bb7? Rb8–+ 20.Re5 Qc7 21.Qe2 Qb7 22.Bc3 Qc7 23.Ba5 Qc6 24.Bd8 Rd8 25.Ra2 Bd6 26.Re6 fe6 27.Qe6 Kh8 28.Qe1 Re8 29.Qc1 Bf4 30.g3 Nh5 31.gf4?? Nf4 32.Qf1 Ne2 33.Qe2–+ Re2 (34.h4 Qg6 35.Kf1 Qe6 36.Ra1 Rd2 37.Re1 Qh3 38.Kg1 Qg4 39.Kf1 Kh7 40.c5 Qf3 41.Kg1 Qf2 42.Kh1 Qe1#) 0–1. Richard,Andy – Cooper,Dale, IECC, 1999.

6.h3 h6 7.Nc3 Nbd7 8.Be2 c6 9.0–0 Be7 10.d4 Qc7 11.a4 0–0 12.Qb3 e4 13.Nd2 Rfe8 14.a5 b5 15.Rfc1 Qb7 16.d5+/– bc4 17.dc6 Qc6 18.Bc4 Ne5 19.Nce4!+– Nc4 20.Rc4 Qb7 21.Nf6 Bf6 22.Bf6 gf6 23.Rf4 Be6 24.Qc3 f5 25.Qf6 (25...Bd5 26.Qf5+– (26.Qd6?! Re6 27.Qc5 Rc8+/–)) 1–0. pierre – Allen de Ohio, ChessWorld.net, 2006.

5.Nf3 Bg4

6.Be2 Nbd7 7.0–0 Be7 8.Nc3 0–0 9.a3 c5 10.d4 h6 (better is 10...ed4!? 11.ed4 Rc8=) 11.bc5+/– dc5 12.Ne5 Be2 13.Qe2 cd4 14.ed4 Re8 15.Nd7 (15.Rad1 Qc7+/–) 15...Qd7 16.Qd3 Rad8 17.Rad1 Qc7 18.h3 Rd7 19.d5 Rc8 20.Na4 (20.Ne4 Ne4 21.Qe4 Qc4+=) 20...b5 (20...Qa5 21.Qc2 b5 22.Qf5=) 21.Bf6 (21.cb5 Rd5 22.Qe3 Rd1 23.Rd1 ab5 24.Rc1+=) 21...bc4? (21...Bf6 22.cb5 Qa5 23.Qe4 ab5 24.Nc5+=) 22.Qb1 (better is 22.Qf5!? Bf6 23.d6+–) 22...Bf6 23.Nb6 Rb8 24.Nd7 Rb1 25.Nf6 gf6 26.Rb1 Qd6 (26...c3!?+/–) 27.Rfd1+– c3 (27...Kf8 28.Rbc1+–) 28.Rbc1 Kf8 (28...Qa3?? 29.d6 Qa5 30.d7+–) 29.Rc3 a5 30.Rc8 Kg7 31.Rc6 (31.Rc4!? Kf8+–) 31...Qa3 32.d6 Qa4 33.Rcc1 Qd7 34.Rc7 Qa4 35.Rdc1 1–0. Nguyen Chi Binh – Dao Quang Minh, VIE–chT Hue, 1999.

6.Be2 Be7 7.0–0 h6 8.d3 Nc6 9.a3 0–0 10.Nbd2 Na7 11.Ne1 Bd7 12.Nef3 Ng4 (12...Bg4 13.e4+=) 13.h3 Nf6 14.Re1 Bc6 15.Qc2 Nh5 (15...Qe8 16.a4+=) 16.d4 (16.Ne5!? de5 17.Bh5 Bf6+/–) 16...ed4 17.Nd4 Nf6 18.Nc6 Nc6 19.Nf3 Ne5 (better is 19...Nd7!?+/–) 20.Ne5+– de5 21.Be5 Qc8 22.Bf3 Nh7 (22...c6 23.c5+–) 23.Be4 Ng5 24.Bd3 Bd6 25.Bd6 cd6 26.Red1 Qd8 27.Rac1 Qf6 28.Qc3 Nh7? (better is 28...Qc3 29.Rc3 a5+–) 29.Bh7 Kh7 30.Qf6 gf6 31.Rd6 Kg6 32.c5 Rac8 33.Rd7 Rb8 34.Rcd1 f5 (34...Rfe8 35.g4+–) 35.R1d6 Kg5 36.Rb6 h5 37.Rbb7 f4 (37...Rb7 38.Rb7 Ra8 39.Rf7+–) 38.ef4 Kf4 39.Rf7 Rf7 40.Rf7 Ke5 41.Rh7 Rd8 42.Rh5 Ke6 (42...Kd4 43.c6 Rc8 44.Rc5+–) 43.Rg5 (better is 43.Rh6 Ke5 44.Ra6+–) 43...Kd7 (43...Kf6 44.f4 Rd4+–) 44.Rd5 Kc6 45.Rd8 a5 46.ba5 Kc5 47.a6 (47.Rb8 Kd4 48.a6 Kd3 49.a7 Kd2 50.a8Q Kc3 51.Qc6 Kd4 52.Rd8 Ke5 53.Rd5 Kf4 54.Qc4) 47...Kb6 48.Rd6 Ka7 49.a4 Ka8 50.a5 Ka7 If Black now would get Rb6 in, he might survive 51.h4 Ka8 52.Rb6 (52.h5 Kb8 53.Rb6 Kc8 54.a7 Kd7 55.a8Q Ke7 56.Qa7 Ke8 57.Rb8) 52...Ka7 53.h5 Ka8 54.h6 Ka7 55.h7 Ka8 56.h8Q Ka7 57.Qg7 (57.Qb8) 57...Ka8 58.Qb7 1–0. Fournier,Frederic (1725) – maqroll3(C), Active, 2005.

6.Be2 h6 7.0–0 Be7 8.d3 Nbd7 9.Nbd2 0–0 10.h3 Bh5 11.Nh4 Be2 12.Qe2 d5 13.a3 dc4 (13...c5 14.bc5 Bc5 15.cd5 Nd5 16.Nhf3=) 14.Nc4+= b5 (14...Re8!?+=) 15.Ne5+/– Ne5 16.Be5 Bd6 (16...Nd7 17.Nf3+/–) 17.Bd6 Qd6 18.d4 (18.Nf5 Qd7 19.Qf3 Kh7+–) 18...Rfe8 19.Rfc1 (19.Qf3 Ne4 20.Rfc1 Nd2+/–) 19...Rac8 (19...Qd4 20.ed4 Re2 21.Rc7+/–) 20.Rc5 (20.Nf5 Qf4 21.Rc5 Nd7+–) 20...c6? (better is 20...Qd4! 21.ed4 Re2+=) 21.Rac1 (21.Nf5 Qd8+–) 21...Ne4 (better is 21...Qd4 22.Nf5 Qd7+–) 22.Nf5?? (better is 22.R5c2+–) 22...Qf6= 23.Qg4 Nc5 24.Rc5 Kh7 25.f3 (25.Ng3 Re6=) 25...g6 26.Qh4?? (26.Ng3=) 26...g5?? (better is 26...Qh4 27.Nh4 Re3–+) 27.Qf2 Kg6? (27...Re6 28.e4+=) 28.e4 (28.Qc2 Qe6+–) 28...Qd8 (28...Rcd8 29.Qc2+/–) 29.Qd2 (29.Qc2 Qd7+–) 29...f6 (29...Qf6 30.Qc2+/–) 30.Qd3 (30.Qc2+–) 30...h5? (30...Re5 31.Rc2+/–) 31.Ne3 (31.Nd6! Qd7+–) 31...h4 (better is 31...Kg7!?+/–) 32.e5+– Kh5?? (better is 32...Kf7 33.Ng4 Qe7+–) 33.Qh7 1–0. Goldmund,Heike – Bromo,Alexis, FICGS, 2016.

6.h3 Bf3 7.Qf3 c6 8.Nc3 Nbd7 9.g4 h6 10.h4 Be7 11.g5 White is in command 11...hg5 (11...Ng8 12.Rg1=) 12.hg5+= Rh1 (12...Nh7!? 13.Qe4 g6+=) 13.Qh1+/– Ng8 14.Qh7 Kf8 15.f4 Bg5? (better is 15...b5!? 16.Bg2 bc4 17.Bc6 Rb8+–) 16.fg5+– Qg5 17.Ne4 Qe7 18.Bh3 (18.a3 g6+–) 18...Ndf6 19.Nf6 Qf6 20.Ke2 Qh6 21.Qh6 Nh6 22.c5 Ke7 23.cd6 Kd6 24.d4 ed4 25.Rd1 f6? (25...Ke7+–) 26.Rd4 Ke7 27.Rd7 (27.Rd7 Kf8 28.Rb7+–) 1–0. Woelfelschneider,Peter – Memmer, 2009.

6.Be2 Qd7

7.0–0 b5 8.h3 (8.d4 A) 8...Bf3 9.Bf3 (9.gf3 ed4 10.cb5 ab5 11.Bd4+=) 9...e4 10.Be2 d5 11.c5+/–; B) 8...e4 9.Nfd2 Be2 10.Qe2 d5 11.cd5+=; 8.Na3 A) 8...bc4 9.Nc4 (9.e4 c3 10.dc3 Be7 11.Nc4+=) 9...Nc6 10.a3 Be7 11.d4+/–; B) 8...a5 9.ba5 (9.cb5 ab4 10.Nc2 c6 11.h3+/–) 9...bc4 10.Nc4 Be7 11.e4+/–; C) 8...e4 9.Nd4 (9.Bf6 gf6 10.Nd4 Be2 11.Ne2=) 9...Be2 10.Qe2 c5 11.bc5+/–) 8...Bf3 (8...Be6 9.d4 (9.Na3 bc4 10.Nc4 Nc6 11.a3+=) 9...ed4 10.Nd4 Bc4 11.a4+=; 8...Bf5 9.a3 (9.Nc3 a5 10.a3 bc4 11.Bc4+=) 9...bc4 10.Bc4 Be7 11.Nc3+/–) 9.Bf3 Nc6 (9...e4 10.Be2 bc4 11.f3+=) 10.cb5 (10.a4 Rb8 11.ab5+/– 1.04) 10...ab5 11.a3 (11.a4+/– 1.09) 11...d5 12.d4 e4 13.Be2 Ne7 14.Nd2 Nc8 15.Rc1 c6 16.Nb3 Bd6 17.Nc5 Bc5 18.dc5 Qd8 19.f3 0–0 20.Bf6 Qf6 21.fe4 Qe5 22.ed5 Qe3 23.Kh1 cd5 (23...Qa3 24.Ra1 Qa1 25.Qa1 Ra1 26.Ra1 Ne7 27.dc6 Nc6 28.Bb5 Nb4+–) 24.Rf3 Qe8 25.Rd3 (better is 25.Qd5!? Ra7 26.Bd3+–) 25...Ne7+/– 26.Bf3 Qc6 27.Qb3 Rfd8 28.Rcd1 Qf6 29.Bd5 Nd5 30.Rd5 Rd5 31.Qd5 Rc8 (31...Rf8 32.c6 Qc3 33.Qc5+–) 32.Qd6 Qh4 33.c6 Re8 (33...h6 34.c7 Qh5 35.Qd8 Kh7 36.Rd7+– (36.Qc8?! Qd1 37.Kh2 Qd6 38.Kg1 Qd4 39.Kf1 Qd3 40.Kf2 Qd2 41.Kf3 Qd3 42.Kf4 Qd4 43.Kg3 Qd6 44.Kg4 Qd4 45.Kf3 Qd3 46.Kf4 Qd4 47.Kf3 Qd3=)) 34.c7 h6 35.Qd8 (35.Qd8 Rd8 36.cd8Q (36.cd8R?! Kh7+/–) 36...Qd8 37.Rd8 Kh7 38.Rd5+–) 1–0. Erdmann,Krzysztof – Bialucha,Sebastian, Mistrzostwa Miedzywojewodzkie Juniorow POL, 2011.

7.0–0 Nc6 8.a3 A) 8...Be7 9.d4 (9.Nc3 0–0 10.Nd5 Bd8 11.d4+=) 9...ed4 10.ed4 d5 11.Ne5+=; B) 8...Qf5 9.Nc3 (9.h3 Bf3 10.Bf3 Be7 11.Nc3+=) 9...e4 10.Nd4 Nd4 11.Bg4+/–; C) 8...e4 9.Nd4 (9.Ne1 Be7 10.f3 ef3 11.Nf3+=) 9...d5 10.Bg4 Qg4 11.Qg4+=.

7.0–0 Nc6 8.b5 ab5 9.cb5 Na7 10.a4 Bf3 11.Bf3+= 0–0–0? 12.Nc3 d5+/– 13.Qb3 e4 14.Be2 Bc5 15.a5+– b6? 16.ab6 Bb6 17.Rfc1 Kb7 18.Na4 Qd6?? 19.Nb6 cb6 20.Qa4 Ra8 21.Qa6 Kb8 22.Be5!! Qe5 23.Qb6# 1–0. AntoniusBlock – Cruz, internet, 2009.

7.0–0 Nc6 8.Nc3 A) 8...Be7 9.a3 (9.Nd5 e4 10.Ne1 Be2 11.Qe2+=) 9...e4 10.Ne1 0–0 11.Bg4+=; B) 8...e4 9.Ne1 (9.Nh4 Be2 10.Qe2 Ne5 11.f3=) 9...Be2 10.Qe2 Qe6 11.f3+=; C) 8...Nb4 9.Qb3 (9.h3 Bf5 10.d4 0–0–0 11.a3=) 9...Nc6 10.d4 b6 11.Qc2+=.

7.0–0 Nc6 8.d4 Nb4 (8...e4 9.Nfd2 Be2 10.Qe2 Nb4 11.a3+=; 8...Bf3 9.Bf3 e4 10.Be2 d5 11.a3+=) 9.Qb3 (9.h3 Bf3 10.Bf3 e4 11.Be2=) 9...Nc6 10.de5 de5 11.Rd1=.

7.0–0 Be7 A) 8.h3 A1) 8...Bf3 9.Bf3 e4 10.Be2 Nc6 11.f3+=; A2) 8...Bf5 9.d4 (9.Qb3 Nc6 10.d4 ed4 11.ed4=) 9...e4 10.Nh4 d5 11.Nf5+=; A3) 8...Be6 9.a3 (9.d4 ed4 10.ed4 d5 11.Ne5=) 9...0–0 10.d4 ed4 11.Nd4+=; B) 8.d4 B1) 8...ed4 9.Nd4 (9.h3 Bh5 10.Nd4 Be2 11.Qe2+=) 9...Be2 10.Qe2 0–0 11.Nc3+=; B2) 8...Qf5 9.Nc3 (9.e4 Qe4 10.h3 Bh5 11.Nbd2+=) 9...e4 10.Nh4 Qg5 11.Bg4+/–; B3) 8...e4 9.Nfd2 Be2 10.Qe2 d5 11.a3+=; C) 8.a3 C1) 8...0–0 9.Nc3 (9.d4 ed4 10.Nd4 Be2 11.Qe2+=) 9...Qe6 10.d4 Nbd7 11.Qb1+=; C2) 8...a5 9.b5 (9.Nc3 ab4 10.ab4 Ra1 11.Ba1+=) 9...Qf5 10.d4 Nbd7 11.Nc3+=; C3) 8...Nc6 9.d4 (9.Nc3 e4 10.Ne1 0–0 11.Bg4+=) 9...ed4 10.ed4 0–0 11.d5+=.

6.h3 Bh5

7.Nc3 c6 8.g4 (8.Be2 Nbd7+=) 8...Bg6 9.Nh4 Be4 (9...Nbd7 10.Ng6 hg6 11.Qf3+=) 10.Rg1 (better is 10.Ne4 Ne4 11.Nf3+/–) 10...d5 (10...h6!?+/–) 11.g5+– Nfd7 12.Qb3 Be7 13.cd5 cd5 (13...Bg6 14.Bg2+–) 14.Ne4 de4 15.Nf5 0–0 (15...Nc6 16.Ng7 Kf8+–) 16.g6 Bf6 (16...hg6 17.Rg6 Bf6 18.Bc4+–) 17.gf7 Kh8 18.Rc1 (18.Ba3 Nc6+–) 18...Nc6 19.Ba3 Rc8 (19...Ne7 20.Nd6 Nb6 21.b5 (worse is 21.Ne4 Ned5+–) 21...ab5 22.Bb5+– (22.Ne4?! Qd5 23.Qd5 Nbd5 24.Nf6 gf6 25.Be7 Ne7+–)) 20.b5 Na5 (20...ab5 21.Bb5 g6+–) 21.Rc8 Qc8 22.Qe6 Nc4 (22...Qc2 23.f3 Nc4 24.Bc4 ef3 25.Bf8 Nf8+–) 23.Bf8 ab5 24.Bg7 Bg7 25.Rg7 Ne3 26.Rh7! (26.de3?! Qc1 27.Ke2 Qc2 28.Ke1 Qc1 29.Ke2 Qc2 30.Ke1 Qc1=) 26...Kh7 (26...Kh7 27.Qh6) 27.Qh6 (27.de3?! Qc1 28.Ke2 Qc2 29.Ke1 Qc1 30.Ke2 Qc2 31.Ke1 Qc1=) 1–0. Janek – Ionci, internet free game, 2017.

7.Nc3 Nc6 8.a3 a5 (8...Be7!?=) 9.b5+/– Ne7 10.Be2 Nc8 11.d4 e4 12.Nd2 Be2 13.Qe2 Qe7 14.0–0 Nb6 Black prepares a4 15.Qd1 c6 16.Qb3 a4 17.Qc2 d5 18.c5 Nbd7 19.f3 ef3 20.Rf3 cb5? (20...g6 21.e4 Bh6 22.ed5 Nd5 23.Nd5 cd5+/–) 21.Nb5 Nb8 (21...Qd8 22.e4 Qa5 23.Qd3+–) 22.Nd6 Kd8 23.e4 de4 (23...Qc7 24.e5 Bd6 25.ed6+– (worse is 25.ef6 g6+–)) 24.N2e4 Nbd7 (24...Kc7+–) 25.c6 Ne4 (25...bc6 26.Qc6 Qe4 27.Ne4 Rc8 28.Qa4 Ne4 29.Qa5 Ke8+–) 26.c7# (26.Qe4?! Qe4 27.Ne4 bc6 28.Rf7 Rb8+=) 1–0. Janek – Elcin, internet, 2016.

7.Nc3 Nc6 8.b5 Na5 9.a4+=.

7.Nc3 e4 8.g4 Bg6 9.Nh4 Qd7? (9...a5 10.ba5 Ra5+/–) 10.g5+– Bh5 (10...Ng8!?+–) 11.Qc2 Ng8 12.Qe4 Be7?? (12...Ne7 13.Qb7 Qc6+–) 13.Nd5 (13.Qb7 Bg5 14.Qa8 Qd8 15.Qe4 Ne7+–) 13...Nc6 (13...Bg6 14.Ng6 hg6 15.Bg7 Rh7+–) 14.Bg7 (14.Ne7?! Qe7 15.Bg2 Qe4 16.Be4 f6+–) 14...0–0–0 15.Bh8 Bg5 16.Qh7 Bh4 17.Qh5 Be7 18.Bd3 (18.b5 Ne5+–) 18...Kb8 19.b5 ab5 20.cb5 Ne5 21.Be4 (21.Be2 Qe6 22.Nf4 Qh6+–) 21...Re8 (21...Qb5 22.Be5 de5 23.Rb1+–) 22.Be5 de5 (22...Bd8 23.d4 de5 24.de5+–) 23.Qf7 Rf8 24.Qg7 Rd8 (24...Qd8 25.Ne7 Qe7 26.Rg1 Qg7 27.Rg7+–) 25.Rc1 Qb5 (25...Bd6 26.Qd7 Rd7 27.h4+–) 26.Ne7 Qb4 (26...Qd7 27.Nc6! bc6 28.Rb1 Kc8 29.Qe5 Ne7+–) 27.Nc6! bc6 28.Rb1 (28.Rb1 Qb1 29.Bb1+–) 1–0. Offenbach/Holaus,V (2210) – Belay,Daniel (1780), remoteschach.de, 2011.

7.d4 d5 8.a3 e4 =+.

7.Be2 Be7 8.Nc3 0–0 9.0–0 h6 (9...Nc6 10.a3=) 10.a3 c6 11.d4 e4 12.Nd2 Be2 13.Qe2 d5 14.f3 ef3 15.Rf3 dc4 16.Qc4 b5 17.Qe2 (17.Qd3 a5=) 17...Nbd7 (17...a5 18.ba5 Ra5 19.a4=) 18.Raf1 (18.Nb3 Re8+=) 18...Bd6 (18...a5 19.d5=) 19.e4 (19.Nde4 Qe7 20.Nd6 Qd6=) 19...Nh5 (better is 19...a5!?=) 20.e5+/– Bc7 21.Rd3 Qg5 22.Nde4 Nf4 23.Ng5?? (better is 23.Qd2 Nd3 24.Ng5 Nb2 25.Qb2 hg5 26.Ne4+–) 23...Ne2+/– 24.Ne2 hg5 25.Bc1 f6 26.e6 Nb6 27.Nc3 (27.Re3 Rae8+/–) 27...Rae8 28.Re1 Re7 29.d5 (29.Kf2 Nd5+/–) 29...Nd5 (better is 29...Rd8!?=) 30.Nd5+/– cd5 31.Rd5 Rfe8 (better is 31...Be5=) 32.Kf2 (better is 32.Rc5!?+=) 32...Re6 33.Re6 Re6 34.Be3 Bb6 (34...Bg3! 35.Kf3 Be5+=) 35.Bb6= Rb6 36.Kf3 (36.Rd7 Re6=) 36...Kf7 37.Kg4 (37.Rd7 Kg6=) 37...Kg6 38.Kf3 (38.Rd8 Rc6+=) ˝–˝. Dopper,Johan – Bremer,Henk, 1990.

5.Nf3 h6

6.d4 e4 7.Nfd2 c6 8.d5 cd5 9.cd5 Nd5 10.Ne4 Nb4 11.Qa4 N4c6 12.Nbc3 Bd7 13.Rd1 Qc7 14.Nd6 Bd6 15.Nd5 Qd8 16.Bg7 Rh7 17.Qe4 Be6 18.Qh7 Qa5 19.Bc3 Qa2 20.Bc4 Qa3 21.Qh8 (Unregistered player Black disconnected and forfeits 1–0). Trkn – guest5613, ICC 1 12 u, 2004.

6.Be2 c6 7.0–0 e4 8.Nd4 d5 9.c5 (9.cd5 Nd5 10.a3 Bd6+=) 9...Be7 (9...b6 10.Qc2=) 10.Nc3 Nbd7 (10...b6 11.Na4 bc5 12.bc5+=) 11.d3 ed3 12.Bd3 b6? (12...Ne5 13.e4+=) 13.Na4?? (13.Nc6 Qc7 14.Ne7 Ke7 15.Nd5 Nd5+–) 13...bc5? (better is 13...Qc7 14.Nf5 bc5 15.Ne7 Ke7 16.Bf6 Kf6 17.Nc5 Nc5 18.bc5 Re8+/–) 14.Nc6+– Qc7 15.Ne7 Ke7 16.bc5 (16.Nc5 Nc5 17.Bf6 Kf6+–) 16...Ne5 (16...Re8 17.Bd4+–) 17.Ba3 (17.Nb6 Ra7+–) 17...Kf8 (17...Rb8 18.Nb6+–) 18.Nb6 Ra7 19.Qa4 (19.Nc8!? Qc8 20.Rc1 Qc6+–) 19...Nd3 (19...Nfg4 20.f4 Nd3 21.Nd5+–) 20.c6 (20.Nc8!? Qc8 21.Qd4+–) 20...Kg8 21.Qd4?? The isolani on d5 becomes a target (better is 21.Nc8 Qc8 22.Qd4+/–) 21...Be6+= 22.Qd3 (22.f4 Qc6 23.f5 Rc7 24.fe6 Qe6 25.Qd3 Qb6=) 22...Qb6 (22...Ng4 23.f4 Qb6 24.Rfb1–/+) 23.Rfc1 Qb5 (23...Qc7 24.Bc5 Ra8 25.Bd4–/+) 24.Qb5 ab5 25.c7?? (better is 25.Bb2!?–/+) 25...Kh7 (better is 25...Ra3!? 26.c8Q Bc8 27.Rc8 Kh7 28.Rc5–+) 26.Be7 (26.Bd6–+) 26...Re8?? (better is 26...Rc8–+) 27.Bd8–/+ Bc8 (27...Ne4 28.Rc6 Ra8 29.Rb6–/+) 28.Rcb1 (28.Rc5 Re4 29.Bf6 gf6 30.Rb5 Rc4–/+) 28...Ra5 (28...Bd7!?–/+) 29.a4+= d4 (29...Re4 30.Bf6 gf6 31.ab5+= (31.Rb5? Raa4 32.Ra4 Ra4–+)) 30.Rb5 (30.Bf6 gf6 31.ab5 Ra1 32.Ra1+=) 30...Ra6? (better is 30...Rb5!? 31.ab5 Nd5= (worse is 31...de3 32.Bf6 gf6 33.fe3 Re3 34.Ra8+/–)) 31.Rb8+/– (31.ed4?! Ra4 32.Rbb1 Rc4+=) 31...Be6?? (better is 31...Nd5 32.Rc8 Nc7 33.Rc7 Rd8 34.Rf7 Rda8+/–) 32.Bf6+– gf6 (32...Rc8 33.Rc8 Bc8 34.Bd4 Rc6+–) 33.Re8 Rc6 34.ed4 Rc7 35.a5 Bc4 (35...Rd7 36.Rb8+–) 36.Ree1 (better is 36.Ra8 Rd7+–) 36...Kg6 (36...Ra7 37.Rec1 Ba6 38.Rc6+–) 37.Rec1 Kf5 (37...Rc6 38.Rc2 Bb5 39.Rc6 Bc6 40.a6+–) 38.a6 1–0. Trkn – RickW, itsyourturn.com, 2000.

6.Be2 e4 7.Nd4=.

4.e3 b6

5.a4 Nc6 6.b5 Na5 7.d3 Bb7 8.Nd2 c5 9.Qc2 g6 10.Ngf3 Qe7 11.e4 Bg7 12.Be2 0–0 13.Nb3 (13.Bc3+=) 13...Rfd8 (better is 13...Nb3!? 14.Qb3 Nh5=) 14.Na5+/– ba5 15.Bc3 Qc7 16.Qd2 Ne4?? (better is 16...Rdb8+/–) 17.de4+– Be4 18.Ba5 Qb7 19.Bd8 Rd8 20.0–0 Bf5 (20...Bf3 21.gf3 Qe7 22.Rfd1+–) 21.Qa5 Ra8 22.Rad1 Bf8 23.Nh4 Be4 24.f3 Bc2 25.Rd2 g5 (25...Be7 26.Rc2 Bh4 27.Rd2+–) 26.Rc2 gh4 27.Qd2 f6 28.Qd5 (better is 28.Bd3!? Re8+–) 28...Qd5 29.cd5 f5 30.a5 Bh6 31.Rb1 White plans b6 31...e4 32.fe4 fe4 33.b6 Bg7 34.Kf1 e3 (34...ab6 35.ab6 Rf8 36.Ke1+–) 35.a6 Bf6 (35...ab6 36.Rb6 h3 37.Rd6 Rf8 38.Kg1 Be5+–) 36.ba7 Kf7 37.Rb8 (37.Rb8 Ra7 38.Rb7 Kg6 39.Ra7+–) 1–0. Dumontelle,Joe – MacHattie, May, 1979.

5.a4 Be7+= 6.Nf3 0–0 7.a5 (7.Nc3 Bb7+=) 7...Bb7 (7...ba5 8.b5+=) 8.Be2 Nbd7 (8...e4 9.Nd4+=) 9.0–0 c6 (9...ba5 10.ba5 Re8 11.a6=) 10.d4 c5 (10...e4 11.Nfd2=) 11.de5 (11.bc5!? e4 12.cd6 Bd6 13.Nh4+/–) 11...de5= 12.Ne5 Qc8?? (better is 12...Ne5!? 13.a6 Be4 14.Be5 Qd1 15.Rd1 cb4=) 13.b5 (13.a6!? Be4 14.Bg4+–) 13...Ne5+= 14.Be5 Rd8 15.Qb3 Qe6 16.Bg3 Ne4 17.Bc7 Nd2 18.Nd2 Rd2 19.Bd3 (better is 19.Rfe1+=) 19...Be4?? (better is 19...Qd7 20.a6 Bg2= (worse is 20...Qc7 21.ab7 Rd8 22.Be4+/–)) 20.Be4+– Qe4 21.ab6 ab6 22.Rfd1 (22.Qb1!? Qb7 23.Ra8 Qa8 24.Bb6 Bd6+–) 22...Rd1 23.Rd1 Qe6 (23...Qb7 24.Bf4+/–) 24.g3 (24.Qd3+/–) 24...Rc8 (better is 24...h6 25.Qd3 Ra4+/–) 25.Bb6?? (better is 25.Qd3+–) 25...Qb6–/+ 26.Ra1 Bf6 27.Ra6 Qd8 28.Qa4 g6 (28...Qf8!?–/+) 29.b6= Rb8 30.b7? (better is 30.Qc6+=) 30...Rb7–+ 31.Kg2 Kg7 32.Rc6?? (32.Ra8 Qe7 33.Re8 Qc7–+) 32...Qe7 (better is 32...Rb2 33.Ra6 Bg5–+) 33.Qc2 Rc7 (33...Rb2 34.Qd3–+) 34.Ra6 (34.Rc7 Qc7 35.Qe4 h6–+) 34...Rd7 35.h4 h5 36.Rc6 Qe5 37.Qb1 (37.Kf3 Ra7–+) 37...g5 (37...Rd2!? 38.Kg1–+) 38.hg5 Bg5 39.f4?? (39.Qc2 h4 40.gh4 Bh4–+) 39...Bf4 (39...Qe3 40.Qb2 Kh7 41.Qc2 Kg8 42.fg5 Rd2 43.Qd2 Qd2 44.Kf3 Qd3 45.Kf2 Qd4 46.Kf3 Qg4 47.Kf2 h4 48.Rc5 Qg3 49.Ke2 h3 50.Rc8 Kg7–+) 40.gf4 Rd2?? (40...Qe3 41.Qb2 Rd4 42.Rc5 f6 43.Qd4 Qd4 44.Rh5 Qd2 45.Kg3 Qe3 46.Kg4 Qe2 47.Kf5 Qh5 48.Ke4 Qc5–+) 41.Kf3+/– Do you see the mate threat? 41...Qe7 42.Qg1 Kf8 43.Qg5 Qd7 44.Qc5 Kg8?? (better is 44...Kg7 45.Qg5 Kf8+/–) 45.Rc8+– Kg7 (45...Qc8 46.Qc8 Kg7+–) 46.Qg5 Kh7 47.Qh5 1–0. Houthuijzen,A – van der Meer, Sassenheim, 1995.

5.Qa4 Bd7 6.b5 g6 7.Nf3 Bg7 8.d4 ed4 9.Nd4 0–0 10.g3 Re8 11.Nc3 a6 12.Bg2 Ra7 13.0–0 c6? (better is 13...Qc8+=) 14.bc6+– Bg4 15.Ndb5! Rae7 (15...ab5 16.Qa7) 16.c7 Rc7 17.Nc7 Qc7 18.Nd5 Nd5?? (18...Qd7 19.Nb6 Qa4 20.Na4 Be2+–) 19.Qe8 (19.Bd5?! Bd7 20.Qb3 Bb2 21.Qb2 Be6+–) 19...Bf8 20.Bd5 Nd7 (20...Be6 21.Be6 fe6+–) 21.Qf7 1–0. marre (1930) – JaiHind (1815), GameColony.com, 2003.

5.b5 c5 6.Nc3 (better is 6.Qf3!? e4 7.Bf6 ef3 8.Bd8 Kd8 9.Nf3+/–) 6...a6= 7.Rc1 (7.d4!?=) 7...ab5+= 8.cb5 Bb7 9.Nf3 Ne4 (9...e4 10.Nh4+=) 10.Ne4= Be4 11.Bc4 Be7 12.d3 Bg6 13.Bd5 Ra2?? (better is 13...Ra7=) 14.Ba2+– 1–0. Janek – Kevin, internet free game, 2017.

5.b5 Bf5 6.d4 ed4 7.Bd4 Nbd7 8.Nf3 Ne4 9.Nc3 h6 10.Bd3 Nc3 white timed out 0–1. chessxliv (2130) – valerypavlovich (2100), net–chess.com, 2014.

5.b5 Bg4 6.Be2 Be2 7.Ne2 =.

5.b5 g6 6.d4 Nbd7 7.Nd2 Bb7 8.d5 Nc5 9.Ngf3 Bg7 10.Be2 Qe7 (10...a6 11.a4=) 11.0–0 0–0 12.Qc2 Rae8 (12...a6 13.e4=) 13.Nh4 (13.Nb3 Nfe4+=) 13...Nfd7 (13...Nd5 14.cd5 Qh4 15.Bc4+=) 14.g3 f5 15.Ndf3 Bc8 16.a4 Nf6 17.a5 Nfe4 18.ab6 cb6 19.Nd2? (better is 19.Ng2=) 19...Qf6?? (better is 19...Nd2 20.Qd2 Nb3–+) 20.Ra7+/– g5 21.Bh5?? (better is 21.Ng2+/–) 21...gh4 22.Be8 Re8 23.gh4 (23.Ba3!?+=) 23...Qh4–/+ 24.Kh1?? (better is 24.Ne4!? fe4 25.f4–+) 24...Nd2 (better is 24...Nf2 25.Rf2 Qf2–+) 25.Qd2 Qc4 Threatening mate: Qxf1. 26.Rg1 (26.Rc1 Qb5 27.Rg1–+) 26...Nd7 (better is 26...Bb7 27.f3 Re7–+ (27...Qb5?! 28.Qg2 Re7 29.Ba3–+)) 27.Ba3–/+ Qe4 (27...Qb5 28.e4 Kh8 29.Qg5+–) 28.Rg2 Nc5?? (better is 28...Kh8 29.Qd1 Qc4–/+) 29.Bc5 (worse is 29.Rag7 Kh8 30.Qd1 Qh4 31.Bc5 bc5+–) 29...Qb1 (29...Kh8 30.Qd1 Rg8 31.Bd6 Bf8+–) 30.Rg1 Qe4 31.f3! Qf3 Decoy to f3 32.Qg2 A pinning theme 32...Qg4 (32...Qg2 33.Rg2 bc5 34.Rgg7 Kh8 35.Rh7 Kg8+–) 33.Rg7 (better is 33.Bd6 Kh8 34.Rg7 Kg7 35.Qc2+–) 33...Kg7 34.Qg4?? (better is 34.Qa2 Qg1 35.Kg1 bc5 36.Qa7 Kg8 37.Qb8+–) 34...fg4+= 35.Bd6 (worse is 35.Bb6 Bf5 36.Rc1 Rb8+=) 35...h5 36.Ra1 (better is 36.e4+=) 36...Rf8?? (better is 36...Bf5=) 37.Bf8+– (37.Be5?! Kg8 38.Bc7 Bd7+/–) 37...Kf8 38.Ra8 (38.Ra8 Ke7 39.Rc8+–) 1–0. Trokenheim,Marek – Winnerhall,Gustav, Stockholm, 1982.

5.Qc2 Bb7 6.Nf3 d5 (6...a6 7.a3=) 7.cd5 e4? (7...Nd5 8.Ne5 Nb4 9.Qa4 Bc6 10.Nc6 Qd7+/–) 8.Bf6 Qf6 9.Qe4 Be7 10.Nc3 0–0 11.Bd3 g6 12.a3 a6 13.Qe5 Qe5 14.Ne5 Bf6 15.Ng4 Bg7 16.e4 Nd7 17.0–0 Rad8 18.Rac1 Bc3? (better is 18...f5 19.Ne3 Ne5+–) 19.Rc3 (worse is 19.dc3 Rfe8+–) 1–0. combijack (1820) – gortak (1655), gameknot.com, 2010.

5.Qc2 g6 6.Nc3 Bg7 7.Nf3 Bb7 8.Be2 Nbd7 9.a3 0–0 10.h4 e4 11.Ng5 Re8 12.0–0–0 h6 13.Nh3 c5 14.b5 d5 15.cd5 Nd5 16.Ne4 (better is 16.Nd5 Bb2 17.Qb2 Bd5 18.Nf4=) 16...Bb2 17.Kb2 Ne5?? (better is 17...Nb4 18.ab4 Be4–/+) 18.d4 cd4 19.Rd4 Rc8 20.Qb3 Qh4? (20...Nd7!? 21.Bf3 Re4 22.Be4 Nc5+/–) 21.Nd6+– Qf6 22.Nb7 (22.Rd5 Bd5 23.Ne8 Qh8–+; 22.Ne8 Re8 23.Rhd1 Nc7+/–; 22.Nc8?! Rc8 23.Rc1 Nc7+/–) 22...Nc7 (22...Nc3 23.Bf1 Ne4+–) 23.Nd6 Ne6 24.Ne8 Re8 25.Qc3 (better is 25.Rdd1 Nc5 26.Qc2 a6 27.ba6 Ne4+–) 25...Nd4 26.ed4 (26.Qd4?! Rd8 27.Qc3 Rd2 28.Kb3 Re2=) 26...Nd7 27.Bf3 Qf5 28.Qc6 Nf6 (28...Re6 29.g4 Qf6 30.Qc3+– (30.Qd7?! Qf3 31.Rc1 Qh3=)) 29.Rc1 (29.g4 Qd7 30.Qd7 Nd7+–) 29...Kg7 (29...Rd8 30.Rc4+–) 30.Ng1 (30.g4 Qd3 31.Rd1 Re2 32.Be2 Qe2 33.Kc1 Ng4+–) 30...Qd3 31.Qc4 Qd2 32.Rc2 Qf4 33.Ne2 Qd6 34.Ng3 Rd8 35.Ne2 Rd7?? (35...Re8 36.Qc7 Qe6+–) 36.Bc6 Rc7 37.Qb3 Ng4 (37...Qd8 38.Ka1+–) 38.Qg3 Qg3 39.Ng3 (worse is 39.fg3 Ne3 40.Rc1 Re7+–) 39...f5 40.d5 Ne5 41.d6 Rf7 42.Kb3 Kf6 43.Rd2 Ke6 (43...Rf8 44.f4 Nf7 45.d7+–) 44.Bd5 Kd7 (44...Kf6 45.Bf7 Nf7 46.Ne2+–) 45.Bf7 (better is 45.f4 Nf3 46.Bf3 Rf6 47.Bc6 Kd8+–) 45...Nf7 46.Kc4 Nd6 47.Rd6! (47.Rd6 Kd6 48.f4+–) 1–0. combijack (1755) – zeppoj (1745), gameknot.com, 2010.

5.Nc3 a6 6.Be2 (6.Nf3 Be7 7.d4 0–0 8.a3 ed4 9.Qd4 c5 10.Qd2 Be6=; 6.d4 ed4 7.ed4 d5 8.a3 Be6 9.Qf3 c6 10.c5 a5=) 6...Be7 7.Nf3 0–0 8.0–0 Re8 9.d4 Bg4 10.de5 de5+=.

5.d3 Bb7 6.Nd2 Nbd7 7.Ngf3 Be7 8.Be2 0–0 9.0–0 c5 10.b5 Qc7 11.Qc2 d5 12.a4 e4 13.de4 de4 14.Ng5 Rfe8 (better is 14...Bd6!? 15.a5 Rae8=) 15.Nge4+/– Ne4 16.Ne4 Bf8 (16...a6 17.Rfd1+/–) 17.Ng5 Threatening mate... how? 17...g6 18.Qc3 The mate threat is Qh8 18...Qe5 19.Qe5 Ne5 20.Be5 (20.Rad1 h6 21.f4 hg5 22.fe5 Re7+/–) 20...Re5 21.Nf3 Re7 22.Rfd1 Bg7 23.Ra3 Be4 24.Nd2 (better is 24.a5!? ba5 25.Ra5+/–) 24...Bc2+= 25.Re1 Rd8 26.Nf3 Red7 27.Ra2 (27.Rf1 h6+=) 27...Be4 (27...Bb3 28.Ra3 Bc2 29.Kf1=) 28.Rc1 (28.Ng5 Bb7+=) 28...h6= 29.Kf1 Bf6 30.Ke1 Kg7 31.g3 Kf8 32.Rd2 (better is 32.Nd2!? Bg2 33.a5+=) 32...Rd2+= 33.Nd2 Bb2 34.Ne4 Bc1 35.Nf6 Bb2 (35...Rd2 36.a5 ba5 37.Ne4–/+) 36.Nd5= Be5 37.Bd3 Bd6 38.Ke2 Kg7 39.f3 f6 40.Nc3 h5 41.Ne4 (41.f4 Kf7=) 41...Be7 (41...Be5 42.f4 Ba1 43.Nd2+=) 42.Nf2 f5 43.f4 Bd6 44.h4 Re8 45.Kd2 Be7 46.Be2 Bf6 47.Nd3 Rd8 48.Kc2 Re8 (48...a6 49.ba6 Ra8 50.a5+=) 49.Kd2 Rd8 (49...Re4 50.Nf2 Re7 51.Bf3+=) 50.Kc2 Rd7 51.Bf1 Re7 52.Kd2 Re4 53.Nf2 Re8 54.Nd3 Re7 55.Bg2 Rc7 56.Bd5 Re7 57.Bg2 Kf8 58.Bd5 Ke8 59.Bc6 Kd8 60.Bd5 Ke8 (60...Kd7 61.a5+=) 61.Bc6= Kf8 62.Bg2 Rd7 63.Kc2 Kg7 (63...Bg7 64.Bc6 Rd6 65.Bd5+=) 64.Bd5 Re7 65.Kd2 ˝–˝. Labahn,Wolfgang – Filor,E, Espelkamp, 1980.

5.d4 d5 6.Nc3 Bg4 7.f3 ed4 8.Qd4 = (< 8.fg4 dc3 9.Bc3 Ne4–/+).

5.d4 Bd7 6.Qb3 c6 7.de5+= de5 8.Be5 Be6 9.Nf3+/– b5 10.Nbd2 Na6 11.Bc3 c5 12.bc5+– Nc5 13.Qb5 Bd7 14.Qa5 Nfe4 15.Qd8 Rd8 16.Ne4 Ne4 17.Ba5 Rb8 18.Bd3 Nc5 19.0–0–0 Ba4 20.Bc2 Bc2 21.Kc2 Ne4 22.Rhf1 g6 23.Nd4 Ba3? 24.Nb3 0–0 25.f3 Nc5 26.Nc5 Bc5 27.e4 Ba3 28.Rb1 Rfc8 29.Rb8 Rb8 30.Rb1 Rc8 31.Kc3 Bd6 32.h3 Be5 33.Kd3 a6 34.Rb6 Ra8 35.c5 Bc7 36.Kc4 Bb6 37.cb6 Rc8 38.Kd5 Kf8 39.b7 Rb8 40.Kc6 Ke8 41.Bc7 (41.Bc7 Rb7 42.Kb7+–) 1–0. einaar (2465) – naskme (2090), net–chess.com, 2008.

5.Be2 c6 6.Qa4 (6.d4 d5 7.de5 Bb4 8.Bc3 Bc3 9.Nc3 Ne4 10.Qc2 Bf5=) 6...Bd7 7.Nc3 Be7 8.b5 0–0 9.Nf3 a6 10.0–0 Qc7=.

5.Be2 Nbd7 A) 6.d4 c5 (6...ed4 7.Bd4 c5 8.Bc3 cb4 9.Bb4 Ne5 10.Nf3 Be6=; 6...a5 7.b5 Be7 8.Nf3 Bb7 9.0–0 e4 10.Nh4 g6+=; 6...Be7 7.Nf3 0–0 8.Nc3 c5 9.bc5 bc5 10.Rb1 cd4=) 7.bc5 bc5 8.Nc3 Rb8 9.Rb1 cd4 10.ed4 Qa5=; B) 6.Nf3 e4 (6...Be7 7.0–0 0–0 8.Nc3 c5 9.a3 d5 10.bc5 e4=; 6...c5 7.bc5 bc5 8.Nc3 Be7 9.Rb1 Nb6 10.0–0 0–0=; 6...a5 7.b5 Be7 8.d4 Bb7 9.0–0 ed4 10.Nd4 0–0+=) 7.Nd4 c5 8.Nc6 Qc7 9.b5 Bb7 10.d3 Ne5=.

5.Be2 Be6 6.Nf3 c6 (6...Be7 7.0–0 0–0 8.d4 e4 9.Ng5 d5 10.Ne6 fe6=; 6...a5 7.b5 Be7 8.0–0 0–0 9.d4 e4 10.Ng5 Bf5+=) 7.0–0 Be7 8.d4 e4 9.Ng5 Bf5 10.f3 ef3=.

5.Be2 Be7 A) 6.b5 0–0 (6...a6 7.Nf3 ab5 8.cb5 0–0 9.Qc2 Bb7 10.0–0 c5=) 7.Nf3 a6 8.0–0 ab5 9.cb5 c5 10.bc6 Nc6+=; B) 6.Nc3 c6 (6...0–0 7.Nf3 e4 8.Ng5 d5 9.cd5 Bf5 10.Qb3 h6=) 7.Nf3 0–0 8.d3 Nbd7 9.0–0 Qc7 10.d4 e4=; C) 6.d3 0–0 (6...a6 7.Nf3 0–0 8.0–0 Nc6 9.a3 Re8 10.Nc3 Bf5=; 6...a5 7.b5 Bb7 8.Nf3 Nbd7 9.0–0 0–0 10.Nc3 Re8=) 7.Nf3 d5 8.b5 e4 9.Nd4 dc4 10.de4 a6=; D) 6.Bf3 e4 7.Be2 0–0 8.Nc3 d5 9.a3 c6 10.cd5 cd5+=; E) 6.d4 e4 (6...0–0 7.a3 ed4 8.Bf3 c6 9.Qd4 a5 10.b5 Bb7=) 7.Nc3 0–0 8.d5 c5 9.Qc2 Na6 10.b5 Nb4=.

5.Nf3= c6 6.Nc3 Qc7 7.Qb3 Be7 8.Rc1 Qb7 (8...0–0 9.Be2+=) 9.d4= e4 10.Nd2 d5 (10...Bf5 11.Be2=) 11.cd5 cd5 12.Nd5! Nd5 (12...Qd5 13.Qd5) 13.Rc8! Eliminates the defender c8 13...Qc8 14.Qd5 Nd7 15.Bb5 Rb8 16.0–0 a6 17.Bc6 Qc7 (17...f5 18.Rc1 Rf8 19.Nc4+/–) 18.Nc4 f6 (18...Bb4 19.Bd7 Qd7 20.Qe5 Be7 21.Qb8 Qd8 22.Qb7+–) 19.b5 g6 (19...ab5 20.Bb5 Qb7 21.Nd6 Bd6 22.Qd6+–) 20.Rc1 ab5 21.Bb5 White threatens.... what? (worse is 21.Qb5 Rd8+–) 21...Rb7?? (better is 21...Qa7+/–) 22.Ne5! (22.Qe4 Kd8 23.Ne5 fe5 24.Rc7 Rc7 25.Qa8 Rc8+–) 22...Qd6 (22...Qe5 23.de5) 23.Rc8 1–0. Makowski,Zbigniew – Wocior,Janusz, Rybnik POL, 1988.

5.Nf3 Nc6 6.b5+= Ne7 7.d4 e4 8.Nfd2 a6 9.Nc3 ab5 10.Nb5 (10.Nde4 Ne4 11.Ne4 bc4+=) 10...c6+= 11.Nc3 d5 (11...Bg4 12.Be2 Be2 13.Qe2+=) 12.cd5= cd5 13.Bb5 Bd7 14.Qb3 Bb5 (14...Ra5 15.0–0=) 15.Qb5+= Qd7 16.Qb6 Nc6 17.Nb3 (17.0–0 Rb8 18.Qa6 Rb2–+) 17...Rb8= 18.Qa6 Nb4 19.Qe2 Nd3 20.Kf1 Bd6 21.h3 (21.Kg1 0–0+=) 21...0–0–/+ 22.Rd1 (22.Kg1 Rfc8–/+) 22...h5 (22...Rfc8!?–/+) 23.Ba1 h4 24.Nc1 Nc1 25.Rc1 Rfc8 26.Bb2 Qb7 27.Rc2 Rc4 (27...Qe7 28.Qd2+=) 28.Qd2 (28.Nd5 Rc2 29.Nf6 gf6 30.Qc2 Qb2 31.Qb2 Rb2–+) 28...Bb4 (28...Rb4 29.Ba1+=) 29.Kg1= Qc7 30.Qc1? (better is 30.a3 Bd6 31.Rc1=) 30...Rc8–+ 31.a3 (31.Nd5 Nd5 (worse is 31...Rc2 32.Nc7 Rc1 33.Bc1–+) 32.Rc4 Qc4 33.Qc4 Rc4–+) 31...Bc3 (31...Rc3?! 32.Bc3 Bc3 33.Qd1–+) 32.Rc3 Rc3 33.Qc3 Qc3 34.Bc3 Rc3 35.a4 (35.Kh2 Ra3 36.Rc1 Ra2–+) 35...Ra3 (35...Ra3 36.a5 Ra5–+) 0–1. Waibel,Ulrich – Virtudazo,Dennis, compuserve, 1995.

5.Nf3 Nbd7 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Nbd7 5.Nf3 b6).

5.Nf3 Qe7 6.b5 Bb7 7.d3 g6 8.Be2+= Bg7 9.0–0 0–0 10.Nbd2 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Nbd7 14.Qc2 Ra8 15.Rc1 Ng4 16.e4 Bh6 17.Bc3 Qe6 18.d4 f6? 19.d5+– Qf7 20.h3 Nf2 21.Kf2 Nc5 22.Ra1 Ra1 23.Ba1 f5 24.ef5 gf5 25.Kg1 e4 26.Qc3 Bg7 27.Nd4 f4 28.Bg4 Qg6 29.Bf5 Qg5? 30.Ne4 Qf5 31.Nf5 Bc3 32.Nc3 Nd3 33.Ne4 Kf7 34.Nfd6! (34.Nfd6 cd6 35.Nd6 Ke7 36.Nb7+–) 1–0. Snide – foxzy, playchess.de, 2001.

5.b5 a6

6.Nc3=.

6.d4 ed4 7.Bd4 Be7 8.Nf3 c5 9.bc6 Nc6 10.Bd3 d5=.

6.d4 Nbd7 7.Nd2=.

6.d4 e4 7.d5 Be7 8.f3 ef3 9.Nf3 0–0 10.Bd3 Ng4=.

5.b5 Bb7

6.Qc2 Nbd7 7.Nc3 Nc5 (7...a6 8.d4=) 8.Rd1 Be7 9.d3 (9.d4 ed4 10.ed4 Nce4+=) 9...e4 (9...0–0 10.d4 ed4 11.ed4=) 10.de4 Nce4 11.Ne4 Be4 12.Qb3 0–0 13.f3 Bg6 14.Ne2 Nd7 (14...a6 15.Nf4=) 15.e4 Bh4 16.g3 Bf6 17.Bg2 (17.Bf6 Qf6 18.Bh3 Nc5=) 17...Nc5 18.Bf6 Qf6 19.Qc3 a6 (19...Qe6!?=) 20.Qf6+/– gf6 21.Nc3 ab5 (better is 21...f5+=) 22.Nb5 (better is 22.cb5!? f5 23.Rf1+=) 22...Ra2= 23.0–0 (23.Rd2 Rd2 24.Kd2 f5 25.ef5 Bf5 26.Nc7 Bd3+=) 23...Ne6 (23...Rc8 24.Rf2 Ra4 25.Bh3=) 24.Rfe1 (24.Nc3 Rc2 25.Rc1 Rd2+=) 24...Rfa8 25.f4 (25.Nc3 Rc2 26.Rc1 Rd2+=) 25...Bh5 (25...R8a4 26.Nc3 Rg2 27.Kg2 Rc4 28.Nd5=) 26.Rc1 (26.Nc3 R2a3 27.Nb5 Bd1 28.Na3 Bb3–+ (28...Ra3?! 29.Rd1 Ra2 30.h3+=)) 26...Rc8 (26...R8a4 27.Nc3 Rg2 28.Kg2 Rc4 29.Nd5+/–) 27.Rc3 (better is 27.Nc3 Rd2 28.Nd5=) 27...Nd4?? (better is 27...Be2+=) 28.Nd4+– Rd2 (28...Rca8 29.Nb5 Ra1 30.Rce3+–) 29.Nf5 Ra8 30.g4 (30.Ne7 Kg7 31.g4 Bg4+–) 30...Raa2 31.Rg3 (31.gh5 Rg2 32.Kh1 Rh2 33.Kg1 Rhg2 34.Kh1 Rh2 35.Kg1 Rhg2 36.Kh1 Rh2=) 31...Bg6 32.Ne7 Kf8 33.Nd5 h5?! (33...Rdc2 34.f5 Rc4 35.fg6 hg6+–) 34.gh5 (34.Nc7 h4 35.Rh3 Rg2 36.Kh1 Rg4=) 34...Bh5 35.Nf6 (35.Nc7 Be2 36.Rb1 Bc4+–) 35...Be2 36.e5 (better is 36.Rg8!? Ke7 37.Nd5 Kd7 38.Bh3 Kc6 39.Nb4 Kc5 40.Na2 Ra2+–) 36...de5 37.fe5 Do you see the mate threat? 37...Ke7 38.Rg8 Ke6 39.Re8 Kf5 40.Bh3 (40.Ne4 Rd3+–) 40...Kf4 41.Nd5 Kg5 42.Rg8 (42.Nc3 Bc4 43.Rg8 Kh6 44.Na2 Ra2+–) 42...Kh4 43.Rh8 Kg5 44.Nc3 Bc4 45.Ne4 Kg6 46.Nd2 Rd2 47.Re4 (47.Rc8 c5 48.Rc6 Kg5 49.Rb6 Bd5+–) 47...Rd1 (47...Be6 48.Be6 fe6 49.Rb4+–) 48.Kf2 Kg7 49.Rhh4 (49.Rc8 Rd2 50.Ke1 Rh2 51.Rg4 Kh7 52.Rh4 Kg7 53.Rc4 Rh3 54.Rg4 Kh7 55.Rc7 Re3 56.Kd2 Re5 57.Rf7 Kh6+–) 49...Ba6 (49...Be6 50.Be6 fe6 51.Reg4 Kf7 52.Rh7 Kf8 53.Rh8 Kf7 54.Rhg8 Rd2 55.Ke3 Re2 56.Ke2 c5 57.R4g7) 50.Reg4 Kf8 51.Rh8 Ke7 52.Rgg8 Bb5 53.Rc8 Rc1 (53...c5 54.Rc7 Bd7 55.Bf5+–) 54.Bg2 (54.Rhg8 f5+–) 54...Rc2 55.Kg3 Bd7 56.Rb8 Rc3 (56...f5 57.Bd5 f4 58.Kf3 Rc3 59.Kf4+–) 57.Kh4 (better is 57.Kf4 Rc4 58.Ke3 f5+–) 57...Rc4 58.Kh5 Bg4 (58...Rc5+–) 59.Kg5 Bd7 1–0. Nilsen,Ingvald – Eriksen,Dagfinn, Kalotturneringen, 1989.

6.Ne2 Be7 7.d4 0–0 (7...Nbd7 8.Nbc3=+) 8.Ng3 (8.de5!? de5 9.Qd8 Rd8 10.Be5+=) 8...Nbd7 9.Bd3 Bg2 10.Rg1 Bb7 11.Nh5 ( 11.Nf5 g6 12.f3=+) 11...d5?? ( 11...g6–/+) 12.Qc2?? ( 12.Ng7 Kh8 13.de5+–) 12...e4 ( 12...Nh5!? 13.Bh7 Kh8–+) 13.Rg7 Kh8–+ (13...Kh8 14.Nf6 Nf6–+ (14...Kg7?! 15.Nh5 Kh8 16.Be2–/+)) 0–1. gtate (1915) – mwojo (2100), net–chess.com, 2004.

6.Nf3 a6=.

5.b5 Nbd7

6.Nc3 A) 6...Bb7 7.Nf3 (7.d4 a6 8.Nf3 ab5 9.cb5 e4 10.Nd2 d5) 7...a6 (7...Be7 8.d4 0–0 9.Be2 a6 10.0–0 ab5) 8.Be2 Be7 9.0–0 ab5 10.cb5 0–0; B) 6...a6 B1) 7.d4 Bb7 (7...ed4 8.ed4 Be7 9.Qf3 Ra7 10.Be2 0–0) 8.Nf3 ab5 9.cb5 e4 10.Nd2 d5; B2) 7.Qf3 Ra7 8.d4 ab5 9.Nb5 e4 10.Qf4 Ra5.

6.d4 a6 A) 7.Nc3 Bb7 (7...ed4 8.ed4 Be7 9.Qf3 Ra7 10.Be2 0–0) 8.Nf3 ab5 9.cb5 e4 10.Nh4 g6; B) 7.Nd2= ab5 (7...Bb7 8.Ngf3 e4 9.ba6 Ra6 10.Ng5 h6) 8.Qf3 Ra7 9.cb5 Bb7 10.Qg3 ed4.

6.d4 Bb7 7.d5 (7.Nf3 e4 (7...a5 8.Be2 ed4 9.Bd4 Nc5 10.0–0 Be7) 8.Nfd2 a6 9.ba6 Ra6 10.Qc2 Qe7; 7.Nd2 a6 (7...Be7 8.Ngf3 ed4 9.Bd4 a6 10.Be2 0–0) 8.Ngf3 e4 9.ba6 Ra6 10.Ng5 h6) 7...a6 (7...Be7 8.Nf3 a6 9.Nc3 Nc5 10.Be2 0–0) 8.a4 (8.Nc3 Nc5 9.Nf3 ab5 10.cb5 Qd7) 8...ab5 (8...Be7 9.Nf3= (9.Nc3 Nc5 10.Nf3 Bc8) 9...Bc8 10.Be2 Nc5) 9.ab5 Ra1 10.Ba1 Qa8 (10...Be7 11.Nf3=) 11.Nc3 Qa5 12.Qa4 Qa4 (12...Nc5 13.Qa5 ba5 14.Bb2=) 13.Na4 Be7 14.Nf3 (14.Bb2 0–0=) 14...0–0 15.Be2 (15.Nc3 Ra8 16.Bb2 Nc5=) 15...Ra8 16.Bd1 Ne4 17.0–0 Ndc5 18.Nc5 Nc5 19.Bc3 (19.Bc2 e4 20.Nd4 Ra2+=) 19...Bc8 (19...Ra2 20.Nd2+=) 20.Bb4 (20.Bc2!?=) 20...Nd3+= 21.Bd2 Bf5 (21...Ra2 22.Bc3+=) 22.h3 (22.Bc2 Ra2 23.Bb1 Rb2=) 22...Ra2 (22...Nc5 23.Re1 Ra2–/+) 23.Be1 (better is 23.Bb3!? Rb2 24.Bd1+=) 23...Nc5–+ (23...Ne1?! 24.Ne1 Bf6 25.Kh2+=) 24.Bb4 Bd3 25.Re1? (better is 25.Nd2 Bf1 26.Kf1–+) 25...Bc4 26.Bc3 (26.Bc5 bc5 (26...dc5?! 27.Ne5 Bd5 28.e4–+) 27.e4 Bb5–+) 26...Bb5 (better is 26...Ne4!? 27.Bb4 Kf8 28.Kh2–+) 27.Nd2 Nd3 (27...c6!? 28.dc6 Bc6 29.Be2–+) 28.Bb3 Rd2 29.Bd2 Ne1 30.Bc1?? (30.Be1 c5 31.dc6 Bc6 32.Bc3–+) 30...e4 (better is 30...c5–+) 31.Bc2 (31.Bd2 Nd3–+) 31...f5 (31...Nc2 32.f3–+) 32.g4 (32.Bb3 Nd3 33.Bd2 Bf6–+) 32...g6 (32...Nc2 33.gf5 Nb4 34.Kg2–+) 33.gf5 (33.Bb3 fg4 34.hg4 Bf6–+) 33...gf5 (33...Nc2 34.fg6 hg6 35.Kg2–+) 34.f3 (34.Bb3 Bf6–+) 34...Bd3 (better is 34...ef3 35.Bd1 Bh4 36.Bf3 Nf3 37.Kg2 Ne1 38.Kg1–+) 35.Bd3 ed3 36.Kf1 Kf7 (36...Nf3 37.Bb2–+) 37.Bd2?? (37.Ke1!? Kg6–+) 37...Bf6 (better is 37...Nf3 38.Bb4 Ne5–+) 38.Be1 (38.Ke1 Kg6–+) 38...Bb2 39.Bd2 Kf6 40.f4 b5 (40...Ke7!? 41.Ke1–+) 41.Ke1 Kg6 42.Kd1 Ba3 43.Be1? (43.Ba5 Kh5–+) 43...Kf7 (better is 43...Bc5 44.Bf2 Bb4–+) 44.Ba5 Ke7 45.Bc7 (45.Kd2!? Kd7 46.Kd3–/+) 45...Bb4–+ 46.Bb6 Bc3 47.Bd4?? (better is 47.Bc7–+) 47...b4 48.Bc3 (48.Bg7–+) 48...bc3 49.Kc1 Kf7 50.Kd1 Kg6 51.Kc1 Kh5 52.Kd1 Kh4 53.Kc1 Kg3 54.Kd1 Kf3 55.e4 fe4 56.f5 (56.Kc1 e3 57.Kb1 c2 58.Kb2 e2 59.f5 e1Q 60.Kb3 c1Q 61.h4 Qcc3 62.Ka4 Qe8) 56...e3 57.f6 (57.Kc1 e2 58.Kb1 e1Q 59.Ka2 Qf2 60.Kb3 d2 61.Kc4 Qc5 62.Kb3 d1Q 63.Ka2 Qa5) 57...e2 0–1. Gutsko,Anastasiya – Gu,Xiaobing, Wrld Youth Chess Fes, 1995.

6.Be2 A) 6...Be7 A1) 7.Nf3 0–0 (7...a6 8.0–0 0–0 9.Nc3 ab5 10.cb5 Bb7) 8.0–0 a6 9.Nc3 ab5 10.cb5 Bb7; A2) 7.Nc3 Bb7 (7...a6 8.Bf3 Ra7 9.Nge2 0–0 10.d4 ab5) 8.Nf3 a6 9.0–0 ab5 10.cb5 0–0; B) 6...a6 7.Nf3 Be7 (7...Bb7 8.0–0 Be7 9.Nc3 ab5 10.cb5 0–0) 8.d3 0–0 9.0–0 ab5 10.cb5 Bb7.

6.Nf3 A) 6...Be7 A1) 7.Be2 a6 (7...0–0 8.0–0 a6 9.Nc3 ab5 10.cb5 d5) 8.0–0 0–0 9.d3 ab5 10.cb5 Bb7; A2) 7.d4 e4 8.Nfd2 a6 9.ba6 c6 10.Nc3 Ba6; B) 6...Bb7 B1) 7.Nc3 a6 (7...Be7 8.Be2 a6 9.0–0 ab5 10.cb5 d5) 8.Be2 Be7 9.0–0 0–0 10.d4 ab5; B2) 7.Be2 a6 (7...Be7 8.d4 a6 9.de5 de5 10.Ne5 Bg2) 8.0–0 Be7 9.Nc3 ab5 10.cb5 0–0; C) 6...a6 C1) 7.d3 Bb7 (7...Be7 8.Be2 0–0 9.0–0 Bb7 10.a4 Re8) 8.Be2 Be7 9.0–0 ab5 10.cb5 0–0; C2) 7.Be2 Be7 (7...Qe7 8.0–0 Bb7 9.ba6 Ra6 10.d4 Ra8) 8.Nc3 ab5 9.cb5 0–0 10.0–0 Bb7.

5.b5 Be7

6.d4 e4 7.Nc3 a6 8.Qc2 Bb7 9.d5 ab5 10.cb5 Nbd7=.

6.Be2 Bb7 7.Nf3 0–0 8.0–0 c6 9.Nc3 a5 10.bc6 Nc6 11.d4 ed4 12.Nd4 Nd4 13.Qd4+/– d5 14.Nd5 Bd5 15.cd5 Rb8 16.Rfd1 Bc5 17.Qh4 h6 18.Bf6 Qf6 19.Qf6 gf6 20.Rab1 Rfd8 21.a4 Rb7 22.Bb5 Re7 23.Bc6 Rd6 24.Kf1 Re4 25.Ke2 Kg7 26.Kd3 f5 27.g3 f6 28.Rg1 h5 29.h3 Kh6 30.Rbc1 Rb4 31.Rc4 Rb2 32.Rf4 Kg5 33.h4 Kg6 34.Be8 Kg7 35.Rf5 Rb3 36.Kc2 Rb4 37.Ra1 Rc4 38.Kd3 Rb4 39.Bh5 Rd8 40.Bf3 Kg6 41.Rf4 Rd6 42.Rb4 Bb4 43.g4 f5 44.e4 fe4 45.Be4 Kg7 46.g5 Bc5 47.h5 Bf2 48.h6 Kg8 49.Rf1 Bh4 50.h7 Kh8 51.Rf8 Kg7 52.h8Q# 1–0. mrkt – starbaths, internet, 2005.

5.Nc3 Bb7

6.b5 Nbd7 (6...a6 7.d4=) 7.Nf3 c6 (7...a6 8.Be2=) 8.Be2 d5 (8...Be7 9.0–0=) 9.bc6 Bc6 10.0–0 Bd6 11.cd5 Nd5 12.d4 e4 (12...Nc3 13.Bc3 Bf3 14.Bf3=) 13.Nd2 (better is 13.Ne4 Bb4 14.a3+/–) 13...Nc3+= 14.Bc3 0–0 (14...Bd5 15.Rc1+=) 15.Qb3 (15.Nc4 Nf6=) 15...Nf6 16.Bb4 Bb4 (16...Bd5 17.Nc4=) 17.Qb4 Bd5 18.Bc4 Bc4 19.Nc4 Rc8 20.Ne5 (20.Rfc1 Qd5=) 20...Nd7 (20...Nd5 21.Qa4+=) 21.Nc4 (21.Qa4 Rc7=) 21...Qg5 22.Rac1 h6 (22...Qd5 23.Qd6 Qb5 24.Na3=) 23.Qa4 Qd5 24.Qb3 (24.Qa7 Rc4 25.Rc4 Qc4 26.Qd7 Qa2+=) 24...Nb8 (24...a6 25.Nd2 Qb3 26.ab3=) 25.Nd2+= Qf5 (25...Qb3!? 26.ab3 f5+=) 26.Qb1+/– Rc1 27.Rc1 Re8 28.Rc7 Qa5 (28...Qd5 29.Ra7 Qc6 30.Qb3+/–) 29.Ne4+– Re4? (better is 29...Qa3+–) 30.Rc8 Kh7 31.Qe4 (31.Rb8?! Qf5+/–) 31...g6 Do you see the mate threat? 32.g3 (32.Qb1 Nd7+–) 32...Na6 33.Qe8 Threatening mate... how? 33...Qe1 34.Kg2 1–0. Wilk,E – Swiderska, Augustow POL, 1994.

6.d3 Be7 7.Nf3 0–0 8.Be2 a6 (8...Nbd7 9.0–0=) 9.0–0 Nc6 (9...Re8 10.d4=) 10.a3+= Na7 (10...Re8 11.d4+=) 11.d4 ed4 12.Nd4 Qd7 13.Bf3 Bf3 (13...c5 14.Nf5 Nc6 15.Bg4+/–) 14.Qf3+/– (14.gf3?! c5 15.Nde2 b5=) 14...Qg4?? (better is 14...Ng4+/–) 15.Nf5 (15.Nd5 Qd7 16.Nf5 Nd5+–) 15...Bd8 (15...Nc6 16.Nd5 Qf3 17.Nfe7 Ne7 18.Ne7 Kh8 19.gf3 Nd7+–) 16.Qa8 (16.Qa8 Qf5 17.Qa7+–) 1–0. Toll – Jorissen, Aalborg, 1986.

6.d4 Nc6 7.d5 Nb4? (better is 7...Nb8+=) 8.Qa4+– Qd7 9.Qb4 c6 10.e4 Be7 11.Nf3 h6 12.Bd3 0–0 13.0–0 Nh5 14.Bc1 Ba6 (14...c5 15.Qb5 Bc8 16.Be2 Qb5 17.cb5+–) 15.dc6 Qc6 16.Nd5 Rfe8 17.Ne5! Qb7 (17...de5 18.Ne7 Double attack) 18.Ng4 Rac8 19.Qa4 Kf8 20.Ba3 b5 (20...Kg8+–) 21.cb5 Bb5 (21...Qd7 22.Ne7 Rc3 23.Qa6 Rd3 24.Nf5 Re4 25.b6 Ra3 26.Qa3 ab6 27.Rfe1+–) 22.Bb5 Red8 23.Ne5! Nf6 (23...de5 24.Be7 Pinning (24.Be7 Deflection)) 24.Ba6 (24.Ba6 Qa8 25.Ne7 Ke7 26.Qb3+–) 1–0. nordlicht (1960) – kambyses (1670), gameknot.com, 2013.

6.Nf3 Nbd7 7.d4 ed4 8.Qd4 c5 9.bc5 dc5 10.Qf4 Be7 11.Rd1 Bf3 12.Qf3 0–0 13.Nd5 Nd5 14.Rd5 (14.Qd5?! Bf6 15.Qd7 Bb2 16.Qd8 Rad8=) 14...Qc7 15.Bd3 (better is 15.Bg7!? Kg7 16.Qg4 Kh8 17.Qd7 Qd7 18.Rd7+/–) 15...Nf6+= 16.Rg5 Qd6 17.Rg7!! Kg7 18.Qg4 Kh8 19.Qf5 Qd3? (19...Kg8 20.Bf6 Qd3 21.Qd3 Bf6+–) 20.Qd3 (20.Bf6?! Bf6 21.Qd3 Rad8+–) 20...Rad8 21.Qe4 Rfe8 22.Qc6 (better is 22.g4!? Kg8 23.Qe5 Rd6+–) 22...Kg7 23.g4 Kg6 (23...h6+–) 24.g5! Rd6 (24...Kg5 25.Rg1) 25.Qg2 Nd7 26.Qe4 Kh5 (26...f5 27.gf6 Kf7 28.Qh7 Ke6 29.fe7 Nb8+–) 27.Qh7 Kg4 28.Rg1 Kf3 29.Qf5 1–0. Eralos – bobby, ChessWorld.net, 2003.

6.Nf3 e4 7.Ng5 h6 =.

6.Nf3 Be7 7.Be2 c5 8.bc5 bc5 9.Rb1 0–0 10.0–0 Nc6 11.d4 cd4 12.ed4 White is in command 12...ed4 13.Nd4 Qd7 14.Nc2 Ne5 15.Ne3 Qc6 The isolani on c4 becomes a target (15...Rab8!?+=) 16.Ncd5+/– Nd5 17.Nd5 (worse is 17.Qd5 Qa6 18.c5 Bd5 19.Ba6 Ba2+=) 17...Ng6? (17...Bd8 18.Be5 de5+–) 18.Bf3+– Qd7 19.Ne7 Ne7 (19...Qe7 20.Bb7 Qb7 21.Bg7 Qb1 22.Qb1 Kg7 23.Qd3+–) 20.Bb7 Qb7 21.Bg7! (21.Qd6?! Rab8+–) 21...Qc7 (21...Kg7 22.Rb7) 22.Bf8 Kf8 23.Qd3 Ng6 (23...Kg8 24.Rfd1+–) 24.Qd5 Re8 (24...Rb8+–) 25.Rb7 Qc5 (25...Nf4 26.Rc7 Nd5 27.cd5 Re5+–) 26.Qf7 1–0. Woelfelschneider,Peter – Flaccus, 2009.

6.Nf3 Be7 7.Be2 h6 (7...e4 8.Nd4=) 8.Qc2 (8.0–0 0–0+=) 8...Qd7 (8...0–0 9.0–0=) 9.0–0 0–0 10.a3 Nc6 (10...e4 11.Nd4=) 11.d4+= ed4 12.ed4 Rae8 13.Rad1 White prepares d5 13...a5 14.b5 Nb8 15.d5 Qd8 16.Rfe1 Nbd7 17.Nd4 Ne5 18.f4 White is in command 18...Ng6 19.g3 Qd7 20.Bd3 Qg4 21.Bf5 Qh5 22.Ne6 (better is 22.Qe2+/–) 22...Bc8? (better is 22...Nh4 23.gh4 fe6 24.Be6 Kh8+=) 23.Bg6+– fg6 24.Nf8 (24.Nc7 Bf5 25.Qf2 Ng4+–) 24...Bf8 (24...Bf5 25.Qf2 Kf8 26.Rd2+–) 25.Re8 Ne8 26.Re1 Nf6 27.Nd1 Bf5 28.Qg2 Ng4 (28...Bd3 29.Ne3 g5+–) 29.h3 Nf6 30.Nf2 (30.g4!? Qh4 31.Re3 Bd7+–) 30...Bd7 31.Bd4 g5 32.g4 Qf7 (32...Qh4 33.fg5 Qg5 34.Qf3+–) 33.fg5 hg5 34.Nh1 (34.Qf3 Qg6+–) 34...Qg6 35.Qe2 Qh7 36.Kg2 Qg6 37.a4 (better is 37.Ng3+–) 37...Be8 (37...Qf7 38.Ng3+–) 38.Ng3 (better is 38.Bf6 Bb5 39.Qe6 Kh8 40.Bd8 Qe6 41.de6 Ba4 42.e7 Be7 43.Re7+–) 38...Bf7 (38...Bd7 39.Rf1+–) 39.Nf5 Kh7 40.Qd2 Kh8 41.Bc3 (41.Ne7 Qh6+–) 41...Nh5 42.gh5 Qf5 43.Rf1 (43.Qe2 Kg8+–) 43...Qe4 44.Kh2 Qe7 (44...Kg8 45.Qf2 (45.Qg5?! Qc4 46.Rc1 Bh5+/–) 45...Qf4 46.Qf4 gf4 47.h6 gh6 48.Bf6+–) 45.h6 Kg8 46.Re1 Qd8 47.Qd4 Qf6 48.hg7 Qg7 49.Qg7 (better is 49.Rg1 Qd4 50.Bd4 Bg6 51.Rg5 Kf7+–) 49...Bg7 50.Bg7 Kg7 51.Re7 Kf6 52.Rc7 Bg6 (52...Bh5+–) 53.Rc6 Ke5 54.Rb6 Bd3 (54...Be4 55.Ra6 Bf5 56.b6+–) 55.Rc6 Bc2 (55...Bc4 56.Rc4 Kd5 57.b6 Kc4 58.b7+–) 56.b6 (56.b6 Ba4 57.Rc7+–) 1–0. Margraf,A – Dunker, Schwabenliga, 1992.

5.Nc3 Be7

6.Nd5 Nbd7 (6...Bb7 7.Ne7 Qe7 8.Nf3 0–0 9.d4 Nbd7 10.a3 ed4=; 6...a5 7.Qa4 Bd7 8.b5 0–0 9.d4 ed4 10.Bd4 Na6=; 6...Nd5 7.cd5 0–0 8.Qf3 Bf6 9.Qe4 a5 10.ba5 Ra5=; 6...0–0 7.d4 Nd5 8.cd5 ed4 9.Qd4 Bf6 10.Qd2 Bb2=; 6...Be6 7.Ne7 Qe7 8.Nf3 0–0 9.d4 e4 10.Nd2 d5=; 6...c6 7.Ne7 Qe7 8.d4 0–0 9.Be2 Be6 10.a3 e4=) 7.d4 0–0 8.Ne7 Qe7 9.b5 a6 10.Nf3 Bb7+=.

6.Be2 0–0 7.Nf3 e4 8.Ng5 d5 9.cd5 Bf5 10.Qb3 h6=.

6.Nf3 0–0 7.d4 Nc6 (7...c6 8.e4=) 8.b5 ed4 9.Nd5 (9.ed4 Na5+=) 9...Nd5 (9...Ne5 10.Nd4 a6 11.f4 Nd5 12.cd5=) 10.cd5+= Ne5 11.Nd4 Bf6 12.Be2 Bb7 (12...a6 13.0–0+=) 13.e4 Nd7 14.0–0 Nc5 15.Qc2 (15.f3 Be5+=) 15...Re8 16.f3 g6 (16...Be5 17.Nb3+=) 17.a4 (17.Rac1 Qe7 18.Bc4 Be5+=) 17...a5 (17...Qe7 18.Bc4+=) 18.ba6+/– Ba6 (18...Bd4 19.Bd4 Ba6 20.Bb5 Bb5 21.ab5+/–) 19.Bb5 (19.Nc6!? Bb2 20.Nd8 (20.Qb2?! Qh4+=) 20...Bd4 21.Kh1 Ba1 22.Nf7+/–) 19...Bd4 (19...Bb5 A) 20.Nb5?! Bb2 21.Qb2 Ra4= (21...Na4? 22.Qb4+–); B) 20.ab5 Qd7 21.Nc6 Ra1 22.Ba1 Ba1 23.Ra1+/–) 20.Bd4 Bb5 21.ab5 Qd7 (21...Qg5 22.Qc3+/–) 22.Bb2 Qe7 (22...f6!?+/–) 23.Qc3+– Qe5 (23...f6 24.Ra8 Ra8 25.Qf6 Qf6 26.Bf6+–) 24.Qe5 de5 25.Ra8 Ra8 26.Be5 Ra7 27.Rd1 (27.Ra1 Ra1 28.Ba1 Nd7+–) 27...f5 28.ef5 gf5 29.d6 cd6 30.Rd6 (30.Bd6?! Rd7 31.Rd4 Nb3+/–) 30...Nd7 (30...Na4 31.Rd5+–) 31.Bd4 Rb7 (31...f4 32.g3+–) 32.Rc6 (32.Kf2 f4+–) 32...Kf7 (32...Ra7 33.Rh6+–) 33.g3 (33.Rh6 Ra7+–) 33...Ke7 (33...Ra7 34.Rh6+–) 34.Kg2 (34.Rh6 Ra7+–) 34...Nb8 (better is 34...Ra7+–) 35.Rb6 Rb6 36.Bb6 Kd6 37.Be3 Nd7 38.Kh3 (38.f4 Nf6+–) 38...Kd5 39.Kh4 (39.f4 Ke4 40.Bg1 Kd5+–) 39...Ne5 40.f4 Nc4 (40...Nf3 41.Kh5 Nh2 42.b6+–) 41.Bf2 (41.Ba7 Nd2+–) 41...Nd6 (41...Nd2 42.Kh5 Nf3 43.b6+–) 42.b6 Ke4 (42...Kc6 43.Kh5 Nf7 44.g4+–) 43.Kg5 Kf3 44.Be1 Kg2 45.Bb4 Nb7 46.Kf5 Kh2 (46...Nd8 47.Kg4 h6 48.f5 h5 49.Kh5+–) 47.g4 (better is 47.Kg4 h5 48.Kh5+–) 47...Kg3 48.g5 Kh4 (48...Kf3+–) 49.Kf6 Kg4 50.f5 White prepares g6 50...Kh5 51.g6 hg6 52.fg6 1–0. Krebbers,Wilfried (2115) – Autiero,Giovanni (1685), 9th Goch op, 2008.

6.Nf3 0–0 7.Be2 e4 8.Ng5 Bf5 9.d3 d5 10.de4 de4+=.

6.Nf3 a5 7.b5 0–0 8.Be2 c5 9.0–0 Bf5 10.d3 Re8+=.

5.d4 ed4

6.ed4 Bb7 (6...d5 7.a3=) 7.Qe2 (7.d5 c6+=) 7...Qe7 (7...Be7 8.d5 0–0 9.Nf3+=) 8.Qe7 Be7 9.d5 0–0 10.Nc3 (10.Bd3 c6 11.dc6 Nc6–/+) 10...a6 (10...c6 11.dc6 Nc6 12.b5+=) 11.Bd3 Nbd7 (11...c6 12.dc6 Nc6 13.b5–+) 12.Nf3 h6 (12...c6 13.dc6 Bc6 14.Rd1=) 13.0–0+= Nh7 (13...Ne5 14.Ne5 de5 15.Rfe1+=) 14.a4 White prepares b5 (14.Rfe1 Ne5 15.Ne5 de5 16.Re5 Bb4+/–) 14...Bf6 15.Rfe1 Rae8 (15...c6 16.dc6 Bc6 17.Be4 Be4 18.Re4+=) 16.Kf1 (16.a5 Re1 17.Re1 ba5 18.ba5 c6+/–) 16...Bc3 (16...c6 17.dc6 Bc6 18.a5 Bf3 19.gf3 Re1 20.Ke1=) 17.Bc3+/– Ndf6 (17...c6 18.Be4 cd5 19.cd5–/+) 18.b5 (18.a5 Bc8+–) 18...a5 19.Nh4 (19.Re8 Re8 20.Re1 Re1 21.Ke1 Bc8+/–) 19...Bc8 20.h3 (20.Nf5 Bf5 21.Bf5 g6+/–) 20...Bd7 21.f4 (21.Nf5 Bf5 22.Bf5 g6+/–) 21...Re1 (21...Nh5!? 22.Re8 Re8+=) 22.Re1+/– Re8 23.Bh7 (23.Re8 Ne8 24.Nf5 Bf5 25.Bf5 Nhf6+/–) 23...Kh7 (23...Nh7 24.Re8 Be8 25.Nf5+/–) 24.Bf6 gf6 (24...Re1 25.Ke1 gf6 26.g4+/–) 25.Re8+– Be8 26.Kf2 (26.g4 Bd7+–) 26...Bd7+/– 27.g4 (27.Nf3 h5+/–) 27...h5 (27...f5 28.g5+/–) 28.f5 hg4 29.hg4 Kh6 30.Kg3 (30.Nf3 Kg7+–) 30...Kg5 (30...Kg7 31.Nf3+–) 31.Nf3 Kh6 32.Kh4 (32.Kf4 Kg7+–) 32...Be8 33.Ng1 (33.Kh3 Bd7+–) 33...Bd7+/– 34.Nh3 Be8 35.Nf4 Bd7 36.Nh5 Bc8 37.Nf6 Kg7 38.Ne8 Kf8 39.Nc7 Bb7 40.Kg5 Ke7 41.Na6 (41.Kf4 Kd7 42.Na6 Ke7+–) 41...Bc8 42.Nb8 Kf8 43.Kf6 Ke8 44.Nc6 Kf8 (44...Bd7 45.g5+–) 45.Ne7 (45.Nd8 Bd7 46.Nf7 Bf5 47.gf5 Ke8+–) 45...Bd7 (45...Bb7+–) 46.Nc6 (46.g5 Ke8+–) 46...Be8?? (46...Bc8 47.Nd8 Kg8 48.Nf7 Kf8+–) 47.Nd8 Kg8 48.Nb7 Kf8 49.Nd6 Bd7 50.Nf7 Be8 ˝–˝. Scholtyssek,Norbert – Doermann,G, Dortmund–ch, 1994.

6.ed4 d5 7.a3 =.

6.Qd4 Be7 (6...Nc6 7.Qd1 Bb7 8.a3 Ne5 9.Nd2 a5 10.Ngf3 ab4=; 6...Bb7 7.b5 Be7 8.Nf3 a6 9.Be2 Nbd7 10.0–0 0–0=; 6...a6 7.Nf3 Bb7 8.Nbd2 d5 9.Qc3 Nbd7 10.Rd1 Qe7=; 6...Be6 7.Nf3 Be7 8.Qc3 a5 9.b5 Nbd7 10.Be2 0–0=; 6...Qe7 7.Qf4 Nbd7 8.Nc3 Bb7 9.Rd1 Qe5 10.Nge2 a5=) 7.Nf3 c5 8.bc5 Nc6 9.Qc3 dc5 10.Be2 Bd6=.

6.Bd4 Bb7 7.Nf3 (7.b5 c5 8.Bc3 a6=) 7...Be7 (7...c5 8.Bc3=) 8.Bd3 (8.b5 a6=) 8...0–0 (8...c5 9.Bc3=) 9.0–0 (9.b5 c5 10.Bb2 a6=) 9...c5 10.Bc3 Qc7 (10...cb4 11.Bb4 Nc6 12.Bc3=) 11.Nbd2 (11.a3 Nc6=) 11...Nbd7 (11...cb4 12.Bb4 Nc6 13.Bc3=) 12.a3 Ne5 13.Qc2 (13.Be2 Rfe8=) 13...Nf3 (13...Nd3 14.Qd3 d5 15.cd5 Nd5 16.Be5=) 14.Nf3+= Bf3 15.gf3 g6 (15...Kh8 16.Ra2+=) 16.Qb2+/– Nh5 (16...Qc6 17.e4 Nh5 18.Rfd1+=) 17.Be4 Rac8 18.b5 f6 (18...Qd8!?+/–) 19.Bd5+– Kg7 (19...Kh8 20.Rfd1+–) 20.Rad1 (20.Qd2 Rce8+–) 20...Qd7 (20...Kh8 21.Qd2+–) 21.Kh1 (21.Qb1 Kh8+–) 21...Qh3 (21...Rce8 22.Rg1+–) 22.Rg1 g5? (better is 22...Kh8+–) 23.Rg5 (23.Rg5 Kh6 24.Rg4+–) 1–0. Wall,Bill – Govoryn, internet, 2005.

6.Bd4 Nc6 7.Bc3 Ne4 8.Bd3 d5 9.a3 Bf5 10.Qc2 Qg5+=.

6.Bd4 Be6=.

5.d4 Nbd7

6.d5 Be7 7.Nf3=.

6.d5 g6 7.Nc3 (7.Nf3 a5+=) 7...Bg7 8.Qc2 0–0 (8...a5 9.a3=) 9.Nf3 a5 10.b5 Nc5 11.Na4 Nfe4 12.Be2 f5 (12...Bf5 13.Qd1=) 13.0–0 Bd7 14.Nc5 Nc5 15.Nd2 a4 16.Rae1 f4 (16...a3 17.Bc1=) 17.e4+= g5 18.f3 (18.h3 Rf6+=) 18...Qe7 (18...Qf6 19.Nb1=) 19.Ba3+= Nb7 20.Nb1 Bf6 21.Rc1 h5 Black intends g4 22.Kf2 g4 23.Ke1 (23.Kg1 g3+=) 23...Bh4 24.Kd2 Kh8 (24...g3 25.Rh1=) 25.Nc3+= Qg5 26.Kd3 Rg8 27.Rh1 gf3 (27...Bf2 28.Na4 Bd4 29.Bb4=) 28.Bf3+= (worse is 28.gf3 Bf2+=) 28...Bg4 29.Qe2 (29.Na4? Bf3 30.gf3 Qg2–+) 29...Rg6 (29...Bf3 30.Qf3 Qg4 31.Rc2+=) 30.Rc2 Rag8 31.Rd1 (31.Bb4 Bf3 32.Qf3 Ra8+=) 31...Kh7 (31...Bf3 32.Qf3 Qg4 33.Qg4 (33.Na4? Ra8–+) 33...Rg4 A) 34.Na4? Ra8 (34...Rg2?! 35.Bc1–/+) 35.Bb4 Ra4–+; B) 34.Rg1=) 32.Rdd2 (32.Rcd2 Bf3 33.Qf3 Qg4=) 32...Qd8 (32...Bf3 33.gf3 Qg1 34.Rc1 Qd4 35.Kc2=) 33.Rb2 (33.Rc1 Qa8+=) 33...Kh6 (33...Bf3 34.gf3 Qc8 35.Rd1= (worse is 35.Na4 Rg1 36.Rd1 Qa8–+)) 34.Qd1 (34.Bg4!? hg4 35.Kc2+=) 34...Bf3= 35.gf3 Rg1 36.Qa4 Rf1 37.Qa7? (better is 37.Kc2+=) 37...Rf3–+ 38.Kc2 Be1 39.Qb7?? (39.Nb1 Bd2 40.Nd2–+) 39...Bd2 40.Bb4 Bc3 41.Bc3 Rg2 42.Kb3 Rc3! 43.Kc3 Rb2 44.Kb2 f3 (44...f3 45.Qa6 f2–+) 0–1. Larios,Francisco Javier – Peris,Gerardo, Aragon–ch Preferente, 2002.

6.de5 de5 7.a3 Bb7 8.Nf3 a5 9.ba5 (worse is 9.Be5 Bf3 10.Bf6 Qf6 (worse is 10...Nf6 11.Qf3 ab4 12.Qc6 Nd7 13.Be2+=) 11.Qf3 Qf3 12.gf3 ab4–/+) 9...Ra5 10.Bc3 Bf3 11.Qf3 Ra7 12.Qc6 Qa8 13.Qa8 Ra8 14.Be2 Bd6 15.0–0 0–0 16.Bb2 Nc5 17.Nc3 Na4 18.Na4 Ra4 19.Ra2 Nd7 20.Rc1 Rfa8 21.h3 Nc5 (21...Ba3? 22.Rca1 Bb2 23.Ra4 Ra4 24.Ra4+–) 22.Bd1 R4a6 23.Bc2 Na4 24.Ba1 f6 25.Be4 Rd8 26.Bc3 Rb8 27.Bc6 Nc5 28.Rcc2 Nd3 29.Bb5 Ra3 30.Ra3 Ba3 31.Rd2 Nc1 32.Kf1 Nb3 33.Rd1 Bd6 34.Bc6 Kf8 35.Ke2 Nc5 36.f3 g5 37.Ra1 h5 38.g4 h4 39.Bb4 Nb7 40.Bb7 Rb7 41.Bd6 cd6 42.Kd3 Ke7 43.Ke4 Ke6 44.f4 ef4 45.ef4 Rc7 46.f5 Kd7 47.Kd4 Kc6 48.Ra8 Rf7 49.Rc8 Kb7 50.Rd8 Kc7 51.Ra8 Kc6 52.Rc8 ˝–˝. Larios Villa (1945) – Cotta Esnaola (1720), Mondragon Arrasate Hiria op 8th, 2009.

5.d4 e4

6.Nd2 d5 7.cd5 Qd5 8.Qa4 Bd7=+ 9.b5 a5 10.Qc4 Bb5?? 11.Qd5 Nd5 12.Bb5 c6 13.Be2 Bb4 14.0–0–0 0–0? 15.Ne4 Re8 16.Bd3 a4 17.a3 Ba5 18.Nf3 Nd7 19.Nd6 Re6 20.Nf7! Kf7 21.Ng5 Ke7 22.Ne6 Ke6 23.Bh7 Bc3 24.Bc2 Bb2 25.Kb2 c5 26.e4 Nf4 27.g3 Ne2 28.d5 Ke5 29.f4 Kd6 30.e5 (30.e5 Ke7 31.d6 Ke6 32.f5 Kf7 33.e6 Kf6 34.ed7+–) 1–0. guest833 – guest382, ICC, 2002.

6.Nd2 Be7 7.Qc2 Bf5 8.Ne2 d5 9.Ng3 Bg6 (9...Bg4 10.cd5 Nd5 11.Qe4+/–) 10.cd5+= Nd5 11.a3 Increases the pressure on e4 11...f5 12.Bb5 Kf8 (12...c6!? 13.Bc6 Nc6 14.Qc6 Kf8+/–) 13.Bc4+/– c6 14.0–0 Nd7 (14...a5 15.b5+/–) 15.Bd5 (15.Qb3!?+/–) 15...cd5+= 16.Qb3 White gets the initiative 16...Nf6 17.f3 Bd6 18.fe4 Bg3 (18...fe4!? 19.Nf5 Bf5 20.Rf5 Ke8=) 19.ef5+/– (19.hg3 Ne4 20.Ne4 de4+/–) 19...Bh2 20.Kh2 Qd6 21.Kg1 Bh5 22.Nf3 (22.Rac1 Ke8+/–) 22...Ng4 (22...Bf3!? 23.Rf3 Kf7+/–) 23.Ne5+/– Re8 24.Rac1 Nf6 25.a4 (25.Rc6 Qe7+–) 25...Be2 26.b5?? (26.Rf2 Bg4+/–) 26...Kg8?? (26...Bf1 27.Ba3 Ne4 28.Qd5 Bc4 29.Bd6 Nd6 30.Qd6 Kg8 31.Rc4 h6+–) 27.Rf2 Bh5 28.Rc6 Qb8 29.e4! h6 (29...Ne4 Theme: Deflection from d5 30.Qd5 Theme: Double Attack) 30.ed5 Kh7 (30...Bf7 31.Nf7 Re1 32.Rf1 Rf1 33.Kf1 Kf7 34.d6 Kf8 35.Qe6+–) 31.Ba3 Ng4 (31...Qd8 32.Bd6+–) 32.Bd6 Qd8 33.Ng4 (33.Rfc2 Qh4 34.g3 Qg5+/–) 33...Re1 34.Rf1 (34.Kh2 Bg4 35.Qg3 Qg5–+) 34...Rf1 35.Kf1 Bg4 36.Qd3 Kg8 (36...Qf6!?+/–) 37.Qe4 (37.Kg1 Qd7+–) 37...h5 (37...Qg5 38.Rc8 Kh7 39.f6 Bf5 40.Rh8 Kh8 41.Qe8 Kh7+–) 38.Qe6 Kh7 39.Qg6 Kg8 40.Be5 (40.Rc7 Rh7 41.Qe6 Kh8+–) 40...Rh7 41.Qe6 1–0. Labahn,Thomas – Schmeding,E, Gersfeld, 1989.

6.d5 Be7 7.Ne2 Bg4 (7...0–0 8.Qc2=) 8.Nd2 (8.Qc2 0–0+=) 8...Qd7 (8...0–0!?=) 9.Qc2 0–0 (9...Bf5 10.Ng3+/–) 10.Ng3 (10.Ne4 Ne4 11.Qe4 Re8+/–) 10...Bf5 (10...a5 11.b5+/–) 11.Nde4 Ne4 12.Ne4 Na6 (12...a5 13.b5+–) 13.a3 (13.Qc3 f6 14.Bd3 Rae8+–) 13...c6 (13...c5 14.Qc3 f6 15.Bd3+–) 14.Bd3 Bg6 (14...cd5 15.Nf6! Bf6 16.Bf5 Qe7 17.Bh7 Kh8+/–) 15.dc6 Qc8 (15...Qc7 16.Qc3 f6 17.b5+–) 16.0–0–0 (16.0–0 Nc7+–) 16...Nb8 (16...f5 17.Nc3+–) 17.b5 a6 18.Nd6 Bd6 19.Bg6 fg6 20.Rd6 Qf5 (20...Qc7 21.Rhd1 Ra7+–) 21.Qf5 Rf5 22.c7 (22.c7 Rf8 23.Rb6+–; 22.Rd8 Rf8 23.c7 Nc6 24.Ra8 Ra8 25.bc6 Rc8+–) 1–0. Nielsen,Peter Moller – Krolik,Zenon, corr ICCF TT–4–90 semi, 1994.

5.Be2 Bb7

6.Nf3 (--> 5.Nf3 Bb7 6.Be2).

6.Nf3 Be7 7.0–0 0–0 8.d4 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 b6 7.0–0 Bb7 8.d4).

5.Qf3 c6

6.b5 Bb7 7.Be2 (7.Nc3 Qc8 8.Qg3 cb5 9.cb5 Be7=) 7...Qc7 (7...Qc8 8.Nc3 cb5 9.Nd5–/+) 8.Qg3 (better is 8.Nc3!?=) 8...cb5–/+ 9.cb5 Qc2 10.Bc3?? (better is 10.Ba3 Ne4 11.Qh3–/+) 10...Qg6 (better is 10...Ne4 11.Qf3 Nc5–+) 11.Qg6 fg6 12.Bf3 Bf3 13.Nf3 Be7 14.d4 (14.Bb2 Nbd7=) 14...e4+= 15.Ng5 0–0 16.0–0 a6 17.Bb4? (17.Bb2 ab5 18.Rc1 Na6+=) 17...ab5 (better is 17...Nd5!? 18.Bd6 Bd6–+ (18...Bg5?! 19.Bf8 Kf8 20.Nd2+=)) 18.Nc3+= Rc8 (18...Nc6!? 19.a3 Nb4 20.ab4 d5+=) 19.Nce4= (worse is 19.Nb5 Nd5 20.a3 Bg5 21.Nd6 Rc7 22.Ne4 Be7–/+) 19...Ne4 (19...Rc6!?=) 20.Ne4+= Rd8 21.Rfc1 Na6 22.Bd2 Rdc8 23.Nc3 b4 (23...Nc7!?+=) 24.Nd5+/– Rc1 (24...Bd8!?+/–) 25.Rc1+– Bd8 26.h3 Kf7 27.Rc6 Ke6 28.Nb6 Bb6 29.Rb6 Nc7 30.Bb4 Ra6 31.Ra6 Na6 32.a3 Nb4 (32...Kd5+–) 33.ab4 1–0. Dorozhkin,Oleg – Tolstolutsky,Ivan, Anna RUS, Akulov Mem, 2012.

6.Nc3 Be7 =.

6.Be2 a6 7.Nc3 Be6 8.Nh3 h6 9.d4 ed4 10.ed4 d5=.

6.Be2 e4 7.Qf4 Nbd7 8.Nc3 Qe7 9.a3 a5 10.f3 ab4+=.

6.Be2 Be6 7.b5 e4 8.Qf4 cb5 9.Bf6 Qf6 10.Qf6 gf6+=.

6.Be2 Be7 7.Nc3 0–0 8.Bd1 (8.b5 Qc7=) 8...Bg4 9.Qg3 Bd1 (9...Be6 10.Be2–/+) 10.Rd1 b5 11.d4 (11.cb5 cb5 12.d4 ed4 13.Rd4 Nc6+=) 11...ed4 (worse is 11...bc4 12.de5 Ne8 13.Nf3+/–) 12.ed4? (better is 12.Rd4!? bc4 13.Rc4–/+) 12...bc4 (12...a5 13.ba5 b4 14.Nce2–+) 13.Nf3 d5 14.Ne5 (14.a3 a5 15.ba5 Bd6–+) 14...Bb4 15.0–0 Bd6 16.Rfe1 (16.Bc1 Nbd7–+) 16...Qc7 17.Bc1 Re8 (17...Nbd7 18.Rd2–+) 18.Bh6 g6 19.Qh4 Nbd7 20.Re3 Be5 (20...Bb4!? 21.Rde1 Re6 22.Nd7 Nd7 23.Re6 fe6 24.a3–+) 21.de5 Nh5?? (better is 21...Re5 22.Bf4 Qd6–+) 22.Rde1?? (better is 22.Qh5! gh5 23.Rg3 Kh8 24.Bg7 Kg8 25.Bh6 Kh8 26.Bg7 Kg8 27.Bh6=) 22...Re5–+ (22...Ne5?! 23.f4 d4 24.Re5 Re5 25.fe5 dc3 26.Qc4 Qb6 27.Be3+=) 23.Re5 (23.R3e2 Rae8–+) 23...Ne5 24.Qd4 Nd3 25.Re3 (25.Rb1–+) 25...f5 (better is 25...Qb6 26.Rd3 cd3 27.Qd3 d4–+) 26.Nd5+= Rd8 27.Re7= Rd7?? 28.Qh8!! Kh8 29.Re8# (29.Nc7?? Re7 30.Bd2 Rc7 31.Bc3 Kg8–+) 1–0. roy1nc6 (1815) – latinoeh (1770), gameknot.com, 2012.

6.Be2 Be7 7.d4 e4 8.Qg3 d5 9.a3 Bd6 10.Qh4 g5–/+.

6.Be2 Bg4 7.Qg3 Be6 8.Nc3 h5 9.f4 e4 10.a3 a6=.

6.h3 Bb7 (6...Be7 7.Nc3 0–0 8.b5 Bb7 9.Nge2 Qd7 10.Qg3 a6+=; 6...Be6 7.b5 Qd7 8.g4 h6 9.Bg2 Bc4 10.bc6 Qc7+=; 6...a6 7.Nc3 d5 8.cd5 cd5 9.a3 e4 10.Qe2 a5+=) 7.a3 (7.d4 a5 8.b5 e4 9.Qg3 cb5 10.cb5 d5=) 7...Nbd7 (7...a5 8.b5 Ra7 9.bc6 Nc6 10.Nc3 Be7=) 8.Nc3 (8.d4 e4 9.Qf4 d5 10.Nc3 Be7=) 8...Qc7 (8...Be7 9.d4 0–0 10.d5 cd5=) 9.e4 (9.d4 Be7 10.Bd3 a5=) 9...a5 (9...Be7 10.Nge2 a5=) 10.b5 Nc5 (10...Be7=) 11.d3 Be7 12.Nge2 0–0 13.Ng3 (13.bc6 Qc6 14.Rb1 Rfc8=) 13...Nb3+= 14.Rb1 Nd4 15.Qd1 cb5 16.cb5 (16.Nb5 Nb5 17.cb5+=) 16...Qc5 (16...d5!? 17.Rc1 Bc5–/+) 17.Rc1 (17.Na4 Qc7 18.Bd4 ed4=) 17...Qc7 (better is 17...Rfe8!?=) 18.Nce2+= Qd7 (18...Qd8 19.Nd4 (19.Bd4?! ed4 20.f4 d5+=) 19...ed4 20.Qa4+=) 19.Nd4+/– ed4 20.Nf5 (20.Bd4!? d5 A) worse is 21.Bb6 Ba3 22.Bc5 Bc1 23.Bf8 Qc8–/+ (worse is 23...de4 24.Bg7 Kg7 25.Qc1 Qb5 26.d4 Qb4 27.Qd2–/+); B) 21.e5 Ba3 22.ef6 (22.Bb6? Qb5 23.Be3 Bc1 24.Qc1 Nd7–+) 22...Rfe8 23.Be2 Bc1 24.Qc1 Qb5 25.0–0+– (25.fg7?! Qd3 26.Qb2 Ba6+=)) 20...d5= 21.f3 a4 (21...Rfc8 A) worse is 22.Bd4 Ba3 23.Rc8 A1) 23...Qc8?! 24.Bf6 (worse is 24.Bb6 de4 25.de4 Be4–/+) 24...gf6 25.Qa1 Bb4 26.Kd1=; A2) 23...Rc8–/+; B) 22.Rc8 Rc8 23.Qd2+= (23.Bd4 Ba3 24.Qb3 Bb4 25.Ke2 de4 26.fe4 Re8–+; 23.Nd4?! de4 24.de4 Rd8=)) 22.Be2 (22.Qd2 Ne8+=) 22...Bc5 23.Qd2 de4 24.Qg5 Ne8 25.fe4 (25.de4 f6 26.Qd2 Rd8+=) 25...Qe6 (25...f6 26.Qd2+=) 26.Bg4 (better is 26.Rc4+/–) 26...Qg6?? (better is 26...Qb3!? 27.Qd2 Ba3 28.Ba3 Qa3=) 27.Qf4 (27.Qe7 Qf5 28.Qb7+– (28.Bf5? Be7 29.Bd7 Bc5–+)) 27...Qf6+/– 28.e5 (28.0–0!?+/–) 28...Qe6+= 29.Nd6 Qb3 30.Qd2?? (better is 30.Nb7 Qb2 31.Nc5 bc5 32.Rc5=) 30...Nd6–+ (worse is 30...Bd6 31.ed6 Nd6 32.0–0 Nb5 33.Bd1–/+) 31.ed6 Rfe8 32.Kf2 Bd6 (worse is 32...Ba3 33.d7 Rf8 34.Ba3 Qa3 35.Rc7–+) 0–1. Dvorak,Tomas (2115) – Fastova,Karolina, Klatovy op–B, 1999.

5.Nf3 Bb7

6.Be2 Nc6 7.b5 Na5 A) 8.0–0 A1) 8...Be7 9.d4 (9.Nc3 a6 10.d4 e4 11.Ne1 ab5 12.cb5; 9.Qc2 a6 10.d4 ed4 11.Nd4 0–0 12.Nf5) 9...e4 10.Nfd2 d5 11.cd5 Qd5 12.Qc2; A2) 8...e4 9.Nd4 (9.Ne1 a6 10.f3 ab5 11.cb5 d5 12.fe4; 9.Nh4 d5 10.cd5 Qd5 11.Bf6 gf6 12.f3) 9...c5 10.bc6 Nc6 11.f3 Ne5 12.fe4; A3) 8...a6 9.Nc3 (9.d4 e4 10.Nfd2 ab5 11.cb5 d5 12.Ba3; 9.Qc2 ab5 10.cb5 c5 11.bc6 Bc6 12.Nc3; 9.Na3 Be7 10.d4 e4 11.Nd2 d5 12.Qc2) 9...Ra7 10.ba6 Ba6 11.Qa4 c6 12.e4; B) 8.Nc3 B1) 8...e4 9.Nd4 (9.Ng5 Qe7 10.0–0 a6 11.d3 ab5 12.cb5) 9...c5 10.bc6 Nc6 11.Nc6 Bc6 12.0–0; B2) 8...Be7 9.d4 (9.0–0 a6 10.d4 e4 11.Ne1 ab5 12.cb5) 9...0–0 10.0–0 ed4 11.Nd4 Re8 12.Nf5; B3) 8...a6 9.0–0 (9.d4 ab5 10.de5 de5 11.cb5 Bd6 12.Qc2; 9.d3 Be7 10.0–0 0–0 11.d4 e4 12.Nd2) 9...Ra7 10.ba6 Ba6 11.Qa4 c6 12.e4; C) 8.d3 C1) 8...Be7 9.0–0 (9.Nc3 0–0 10.0–0 a6 11.d4 e4 12.Nd2; 9.d4 e4 10.Nfd2 d5 11.cd5 Bd5 12.Nc3; 9.Nbd2 a6 10.0–0 ab5 11.cb5 Qd7 12.a4) 9...a6 10.Nc3 ab5 11.cb5 0–0 12.Qc2; C2) 8...a6 9.0–0 (9.Nc3 ab5 10.cb5 Be7 11.0–0 0–0 12.d4; 9.Nbd2 ab5 10.cb5 Be7 11.e4 0–0 12.0–0) 9...Be7 10.d4 e4 11.Nfd2 ab5 12.cb5; D) 8.d4+= e4 9.Nfd2 d5 10.cd5 Nd5 11.Nc3 f5 12.Nd5.

6.Be2 Nc6 7.b5 Nb8 A) 8.d4 e4 9.Nfd2 (9.Ng5 a6 10.Nc3 h6 11.Nh3 ab5 12.Nb5) 9...a6 10.ba6 Na6 11.Nc3 Qe7 12.0–0; B) 8.Nc3 B1) 8...Nbd7 9.0–0 (9.d4 a6 10.0–0 Be7 11.Qc2 ab5 12.cb5) 9...a6 10.d4 Be7 11.Qc2 ab5 12.cb5; B2) 8...a6 9.d4 (9.0–0 Be7 10.d4 Nbd7 11.Qc2 ab5 12.cb5; 9.d3 Be7 10.d4 Nbd7 11.0–0 0–0 12.Qc2; 9.Rc1 Be7 10.0–0 0–0 11.d4 Nbd7 12.Qc2) 9...e4 10.Ng5 h6 11.Nh3 ab5 12.Nb5; C) 8.d3 C1) 8...Be7 9.0–0 (9.Nc3 a6 10.d4 Nbd7 11.0–0 0–0 12.Qc2; 9.d4 e4 10.Nfd2 a6 11.ba6 Na6 12.Nc3; 9.Nbd2 a6 10.a4 0–0 11.0–0 Nbd7 12.d4) 9...a6 10.Nc3 0–0 11.d4 Nbd7 12.Qc2; C2) 8...Nbd7 9.0–0 (9.Nbd2 a6 10.0–0 Be7 11.Qc2 0–0 12.d4; 9.d4 ed4 10.Bd4 a6 11.Nc3 Be7 12.0–0; 9.Nc3 a6 10.0–0 ab5 11.cb5 Be7 12.Qc2) 9...a6 10.Nbd2 Be7 11.Qc2 0–0 12.d4; C3) 8...a6 9.0–0 (9.Nc3 Be7 10.d4 Nbd7 11.0–0 0–0 12.Qc2; 9.d4 e4 10.Nfd2 ab5 11.cb5 d5 12.Qb3) 9...Be7 10.Nc3 0–0 11.d4 Nbd7 12.Qc2; D) 8.0–0 D1) 8...Be7 9.d4 (9.Nc3 a6 10.d4 Nbd7 11.Qc2 ab5 12.cb5; 9.Qc2 a6 10.d4 e4 11.Ng5 ab5 12.cb5) 9...e4 10.Nfd2 a6 11.ba6 Na6 12.Nc3; D2) 8...a6 9.d4 (9.Nc3 Be7 10.d4 Nbd7 11.Qc2 ab5 12.cb5; 9.a4 e4 10.Nd4 c5 11.bc6 Nc6 12.d3; 9.a3 Be7 10.Nc3 ab5 11.cb5 0–0 12.d4) 9...e4 10.ba6 Na6 11.Nfd2 d5 12.Nc3.

6.Be2 Nc6 7.b5 Ne7 8.d4 (8.0–0 a6 9.a4 (9.Nc3 ab5 10.cb5 Ng6 11.Rc1 d5 12.d4; 9.a3 ab5 10.cb5 c5 11.bc6 Bc6 12.Nc3; 9.d4 e4 10.Nfd2 ab5 11.cb5 d5 12.Qc2) 9...Nf5 10.d3 Be7 11.e4 Nh6 12.Bc1) 8...ed4 (8...e4 9.Nfd2 d5 10.Nc3 c6 11.0–0 cb5 12.cb5; 8...Ng6 9.0–0 e4 10.Nfd2 d5 11.cd5 Qd5 12.Bc4) 9.ed4 (9.Bd4 Nf5 10.Bb2 Ne4 11.Nbd2 Nd2 12.Qd2) 9...g6 (9...d5 10.0–0+= a6 11.Ne5 Nd7 12.Bf3) 10.0–0 Bg7 11.Re1 (11.d5 0–0 12.Re1) 11...0–0 12.a4 (12.Nc3+=) 12...h5 (12...c6 13.Nbd2+=) 13.h3 (13.Nbd2 a6+/–) 13...Nf5 +=. Kvazar – Grunert, playchess.de, 2002.

6.Be2 Nc6 7.d4 Qe7 8.a3 g6 (8...ed4!? 9.ed4 d5+=) 9.Qa4 Bg7? (better is 9...Nd7!?+/–) 10.d5+– 0–0 (10...Qd7 11.dc6 Bc6+–) 11.dc6 Bc8 12.Nc3 e4 13.Nd4 Be6 14.0–0 h5 15.Ne6 Qe6 16.Rad1 a6 17.Nd5 Rfc8 (17...b5 18.Qb3 Nd5 19.cd5+–) 18.Bf6 Bf6 19.Qc2 a5 (19...Bg7 20.f3+–) 20.Qe4! Kg7 (20...Qe4?? 21.Nf6 Kg7 22.Ne4 ab4 23.ab4+–) 21.Qd3 Ra7 22.f4 Rh8 (22...ab4 23.f5 gf5 24.ab4+–) 23.f5 g5 (23...gf5 24.ba5 Ra5 25.Nc7 Qe5+–) 24.fe6 1–0. marekt – inviso, schemingmind.com, 2005.

6.Be2 e4 7.Ng5=.

6.Be2 g6 7.0–0+= Bg7 8.d4 e4 9.Nfd2 0–0 10.Nc3 Re8 11.f3 ef3 12.Bf3 d5 13.Nd5 Bd5 14.cd5 Re3 (14...Nd5 15.Qb3 c6 16.e4+/–) 15.d6+/– c6 16.b5 Qd6? (better is 16...Re8+/–) 17.Nc4+– Qe6 18.Ne3 Qe3 19.Kh1 Ne4 20.Be4 Qe4 21.Re1 Qf4 (21...Qd5 22.Re8 Bf8 23.Ba3 cb5 24.Qb3 Qb3 25.Rf8 Kg7 26.ab3+–) 22.Re8 Bf8 23.Ba3 c5 24.dc5 Kg7 (24...bc5 25.Qd5 Nd7 26.Qa8+–) 25.Rf8! Kf8 (25...Qf6 26.c6 Nc6 27.Ra8 Ne7+–) 26.cb6 Ke8 27.Qe2 Kd8 (27...Qe3 28.Qe3 Kd7 29.Qe7 Kc8 30.b7) 28.Qe7 Kc8 29.b7 1–0. marekt – taa, ChessWorld.net, 2004.

6.Be2 Nh5 7.d3 Be7 8.Nbd2 Nf6 9.0–0 Ng4 10.h3 Nh6 11.e4 0–0 12.Nh2 c6 13.a3 d5 (better is 13...f5!?=) 14.Be5+/– de4 15.Ne4 c5 16.b5 Nd7 17.Bb2 Nf5 18.Nf3 Be4 (better is 18...Re8!?+/–) 19.de4+– Nd4 20.Nd4 cd4 21.Qd4 Bc5?? (better is 21...Bf6 22.Qd2 Qe7+–) 22.Qg7 1–0. Fournier,Frederic (1810) – labrujalola (1765), Active, 2004.

6.Be2 c5

7.Qa4 Qd7 8.b5=.

7.b5 Be7 8.d3 0–0 9.0–0 A) 9...Nbd7 10.Qc2 (10.Qb3 Re8 11.Nc3 a6 12.Rfb1 a5 13.Qa4 Qc7 14.e4=; 10.Nc3 a6 11.ba6 Ra6 12.Qb3 Qc7 13.Nb5 Qc6 14.Ne1=) 10...Qc7 11.Nc3 Rfe8 12.e4 a6 13.Rfb1 ab5 14.Nb5+=; B) 9...Qc7 10.Nc3 a6 11.Qb3 Nbd7 12.ba6 Ra6 13.Nb5 Qc6 14.Ne1+=; C) 9...a6 10.ba6 (10.Nc3 Re8 11.e4 Bc8 12.ba6 Ra6 13.Qb3 Nc6 14.Nb5=; 10.Na3 Re8 11.Nd2 ab5 12.Nb5 Bf8 13.e4 Nc6 14.Qb3=) 10...Na6 11.Qb3 Re8 12.Nbd2 Qc7 13.Rfb1 Reb8 14.Bc3=.

7.b5 Be7 8.d3 0–0 9.Na3 A) 9...Re8 10.Qb3 a5 11.0–0 a4 12.Qc2 Nbd7 13.e4 Nf8 14.Nb1=; B) 9...Nbd7 10.0–0 (10.Qd2 Qc7 11.0–0 d5 12.cd5 Bd5 13.Qc3 a6 14.ba6=; 10.Qc2 Re8 11.0–0 Qc7 12.Rfb1 d5 13.cd5 Nd5 14.Nc4=) 10...Qc7 11.Qc2 Rfe8 12.e4 h6 13.Nd2 Nf8 14.Bc1=; C) 9...Qc7 10.0–0 (10.Qc2 a6 11.0–0 Qd7 12.e4 Ng4 13.Nd2 f5 14.Bg4=) 10...Nbd7 11.Nh4 d5 12.Nf5 Rfe8 13.Bf3 a6 14.ba6=; D) 9...a6 10.0–0 (10.Qb3 Qd7 11.0–0 Re8 12.Rfb1 a5 13.Qa4 Qe6 14.Re1=) 10...Re8 11.e4 ab5 12.Nb5 Nc6 13.Qd2 Nd4 14.Nfd4=; E) 9...Qd7 10.0–0 a6 11.Qb3 Qe6 12.Rfb1 a5 13.Qc2 Re8 14.Qd2=.

7.b5 Be7 8.d3 0–0 9.Qb3 A) 9...a6 10.Nc3 (10.Na3 a5 11.Qa4 Nbd7 12.0–0 Qc7 13.Nh4 Rfe8 14.Nf5=; 10.ba6 Ra6 11.0–0 Qd7 12.Nc3 Nc6 13.Nb5 Rfa8 14.Rfb1=) 10...Nbd7 11.ba6 Bc6 12.0–0 Ra6 13.Nb5 Qb8 14.d4=; B) 9...Nbd7 10.0–0 (10.Nc3 a6 11.0–0 Re8 12.ba6 Ra6 13.Rfb1 Qa8 14.e4=) 10...Re8 11.Nc3 Qc7 12.Rfb1 Nf8 13.Nd2 Ng6 14.Bf3+=; C) 9...Re8 10.0–0 (10.Nc3 a6 11.0–0 ab5 12.Nb5 Nc6 13.Rfb1 Na5 14.Qc2=) 10...a6 11.Nc3 Nbd7 12.ba6 Ra6 13.Nb5 Qc8 14.Rfb1=.

7.b5 Be7 8.d3 0–0 9.Nc3 A) 9...Nbd7 10.Qc2 (10.Qb3 Re8 11.0–0 Qc7 12.Rfb1 a6 13.ba6 Ra6 14.a3=; 10.0–0 a6 11.Qb3 Qc7 12.Rab1 ab5 13.Nb5 Qc6 14.Nh4=) 10...Re8 11.0–0 a6 12.Rfb1 ab5 13.Nb5 Bc6 14.Bc3=; B) 9...a6 10.0–0 (10.Qc2 Qd7 11.0–0 Re8 12.e4 ab5 13.Nb5 Nc6 14.Rfb1=; 10.Qb3 Re8 11.0–0 Nbd7 12.ba6 Ra6 13.Nb5 Qc8 14.Nh4=; 10.Qd2 ab5 11.Nb5 e4 12.de4 Ne4 13.Qc2 Na6 14.0–0=) 10...Re8 11.Qb3 Nbd7 12.ba6 Ra6 13.Rfb1 Qa8 14.e4=; C) 9...Re8 10.Qc2 (10.0–0 a6 11.e4 ab5 12.Nb5 Bc6 13.Re1 Na6 14.Qb3=; 10.e4 a6 11.0–0 Nbd7 12.ba6 Ra6 13.Rb1 Nf8 14.Qb3=; 10.Qd2 a6 11.0–0 ab5 12.Nb5 Na6 13.Rfb1 e4 14.Ng5=; 10.Qb3 a6 11.0–0 Nbd7 12.ba6 Ra6 13.e4 Nh5 14.Bc1=) 10...a6 11.0–0 ab5 12.Nb5 Na6 13.e4 Bc6 14.Rfb1=.

7.b5 Be7 8.d3 a6 9.a4 (9.ba6 A) 9...Ra6 10.d4 (10.0–0 0–0 11.d4 cd4 12.ed4 e4 13.Nfd2 d5 14.cd5=) 10...cd4 11.ed4 e4 12.Nfd2 e3 13.fe3 Bg2 14.Rg1+/–; B) 9...Na6 10.Qb3 (10.0–0 0–0 11.Nbd2 Qd7 12.Qb3 Rfb8 13.Rfb1 Bc6 14.a3=; 10.Qa4 Qd7 11.Qb3 b5 12.cb5 Bd5 13.Qc3 Qb5 14.d4=; 10.e4 0–0 11.Nc3 Nd7 12.0–0 Nc7 13.Qb3 f5 14.Rab1=; 10.Nc3 0–0 11.0–0 Bc6 12.Qb3 Qc7 13.Rfb1 Rfe8 14.e4+=; 10.Nbd2 Nb4 11.Qb3 0–0 12.0–0 Qc7 13.Bc3 Nc6 14.Rfb1=; 10.Nfd2 Qc7 11.Nc3 0–0 12.0–0 d5 13.Qb3 d4 14.Nb5=) 10...0–0 11.0–0 Nb4 12.Nbd2 Qc7 13.Bc3 Nc6 14.Rfb1+=) 9...0–0 10.0–0 (10.Nc3 Re8 11.0–0 Nbd7 12.Qb3 Qc7 13.Rfb1 a5 14.e4=; 10.Nbd2 Nbd7 11.0–0 Qc7 12.e4 Ne8 13.Qc2 f5 14.ef5=) 10...e4 (10...ab5 11.ab5 Ra1 12.Ba1= Qc7 13.Nbd2 Nbd7 14.Nh4=; 10...Qd7 11.Qb3 Qe6 12.Nc3 Nbd7 13.ba6 Ra6 14.e4=) 11.de4 Ne4 12.Nfd2 (12.Nc3 Bf6 13.Qd3 Re8= 14.Rfd1=) 12...Bf6 13.Qc2 Re8 14.Nc3 (14.Bf3=) 14...Nc3 15.Bc3 ab5 (15...Bc3 16.Qc3 Qe7 17.Rfb1=) 16.ab5+= Ra1 17.Ra1 Bc3 18.Qc3 Nd7 19.Ra7 Qb8 20.Qa1 Ne5 21.f4 Nd7 22.Kf2 d5 23.cd5 Bd5?? (better is 23...Nf6=) 24.Rd7+– Bb7 (24...Be6 25.Ra7+–) 25.Qa2 (25.Bc4!? Rf8 26.Bf7 Rf7+–) 25...Rf8 26.Bc4 Qe8 (26...Kh8 27.Rf7 Rf7 28.Bf7 Qd8+–) 27.Rb7 1–0. Sundin,Thommy (1890) – Maelson,Johan (1605), Uppsala Sweden, 1988.

7.d4 e4 8.Nfd2=.

6.Be2 Nbd7

7.0–0 e4!? 8.Ng5 h6=.

7.0–0 Qe7 8.a3 A) 8...0–0–0 9.d4 e4 (9...c6 10.Qa4 e4 11.Nfd2 Kb8 12.Nc3 h5; 9...ed4 10.Qd4 Re8 11.Nc3 Qe6 12.Rad1 Ne5) 10.Nfd2 a6 11.d5 Rg8 12.a4 Re8; B) 8...e4 9.Nd4 Ne5 (9...d5 10.cd5 Bd5 11.Nc3 Bb7 12.f3 a5; 9...a5 10.b5 Ne5 11.f4 ef3 12.Nf3 Rd8; 9...0–0–0 10.Qa4 Kb8 11.f3 Ne5 12.fe4 Be4) 10.Qa4 c6 11.f4 ef3 12.Nf3 Qe6; C) 8...a5 9.b5 g6 (9...0–0–0 10.Nc3 h5 11.d4 g6 12.Qb3 Bg7; 9...e4 10.Nd4 Ne5 11.Nc3 Qd7 12.f3 ef3; 9...Rd8 10.d4 Bf3 11.Bf3 e4 12.Be2 d5) 10.Nc3 Bg7 11.d4 e4 12.Nd2 0–0; D) 8...d5 9.d4 e4 (9...ed4 10.ed4 dc4 11.Bc4 Qd6 12.Nc3 Be7) 10.Ne5 dc4 11.Bc4 Bd5 12.Bd5 Nd5.

7.0–0 Qe7 8.Nc3 e4 A) 9.Nd4 c5 10.Nc2 d5 11.bc5 dc4 12.cb6 Nb6; B) 9.Ng5 h6 (9...d5 10.Nb5 Qd8 11.cd5 Bb4 12.Qc2 0–0; 9...a5 10.b5 Qe5 11.Nh3 Be7 12.f3 ef3) 10.Nh3 d5 11.a3 dc4 12.Bc4 Ne5; C) 9.Nh4 d5 (9...a5 10.b5 Ne5 11.f3 ef3 12.Nf3 Rc8; 9...0–0–0 10.Nf5 Qe5 11.Ng3 Qg5 12.d3 ed3; 9...Ne5 10.Qa4 c6 11.f3 ef3 12.Nf3 a6) 10.a3 dc4 11.Bc4 Ne5 12.Be2 a5.

7.0–0 Qe7 8.d4 A) 8...e4 A1) 9.Ng5 h6 (9...c5 10.b5 d5 11.Nd2 Rd8 12.Qa4 Ra8; 9...a5 10.b5 Ng8 11.Nh3 Qh4 12.f3 Ngf6; 9...0–0–0 10.Qa4 Kb8 11.Nc3 h6 12.Nh3 g6) 10.Nh3 d5 11.Ba3 Qd8 12.Qc2 dc4; A2) 9.Nfd2 d5 (9...c5 10.bc5 dc5 11.d5 b5 12.Nc3 bc4; 9...c6 10.a3 a5 11.Nc3 d5 12.ba5 Ra5; 9...a6 10.d5 c6 11.dc6 Bc6 12.Bd4 d5) 10.a3 a5 11.b5 c5 12.bc6 Bc6; B) 8...c5 B1) 9.bc5 bc5 10.Nc3 cd4 11.ed4 Rb8 12.Rb1 e4; B2) 9.a3 e4 (9...Rc8 10.Nbd2 e4 11.Ne1 a6 12.d5 Rb8) 10.Nh4 d5 11.bc5 bc5 12.Nc3 Bc6; B3) 9.b5 e4 (9...a6 10.Nc3 Qd8 11.ba6 Ra6 12.Nb5 Bf3) 10.Ng5 d5 11.Nd2 Rd8 12.Qa4 cd4; C) 8...ed4 C1) 9.Nd4 c5 (9...a5 10.b5 Ne5 11.a3 Rd8 12.Nc3 d5; 9...d5 10.b5 dc4 11.Nd2 Ne5 12.Qc2 a6) 10.Bf3 Bf3 11.Qf3 Qe4 12.Qe4 Ne4; C2) 9.ed4 d5 10.a3 dc4 11.Bc4 Qd6 12.Nc3 c6; D) 8...c6+= D1) 9.a3 e4 (9...a5 10.Nc3 e4 11.Nd2 d5 12.ba5 Ra5) 10.Nfd2 Qe6 11.Qc2 d5 12.Nc3 Be7; D2) 9.Nc3 e4 (9...a6 10.d5 cd5 11.cd5 a5 12.ba5 Ra5) 10.Nd2 a6 11.a3 d5 12.Qb3 Qe6.

7.0–0 Qe7 8.Ne1 0–0–0 (8...d5 A) 9.a3 c5 (9...dc4 10.Bc4 Rd8 11.d4 ed4 12.ed4 Ne5; 9...a5 10.b5 c5 11.d4 Qe6 12.cd5 Bd5; 9...a6 10.d4 ed4 11.ed4 dc4 12.Bc4 Qd6) 10.bc5 bc5 11.cd5 Nd5 12.Nc3 Qe6; B) 9.b5= a6 (9...c6 10.d4 dc4 11.Bc4 ed4 12.Ba3 Qd8) 10.d4 dc4 11.Bc4 ab5 12.Bb5 e4; 8...c5 9.b5 (9.bc5 dc5 10.Nc3 Qd8 11.d3 Be7 12.Bf3 Bf3) 9...d5 (9...Qe6 10.d4 ed4 11.ed4 d5 12.cd5 Nd5) 10.d4 Rd8 11.Nd2 dc4 12.Nc4 ed4) 9.Bf3 (9.d4 ed4 (9...d5 10.c5 ed4 11.ed4 Ne4 12.Qc2 Qe6) 10.Bd4 Ne5= (10...Qe6 11.Nd2 Ne5 12.a4 c5) 11.Nd2 Qe6 12.a4 c5; 9.Qa4 Kb8 10.d4 ed4 11.Bd4 d5 12.Nc2 dc4; 9.f4 e4 (9...Qe6 10.Qa4 Kb8 11.Nf3 Qg4 12.Nc3 ef4; 9...ef4 10.Rf4 d5 11.Qc2 Qb4 12.cd5 Qe7) 10.Nc3 d5 11.a3 dc4 12.Rc1 a6; 9.b5 d5 (9...Qe6 10.a4 d5 11.cd5 Nd5 12.a5 Bd6) 10.d4 dc4 11.Qa4 Kb8 12.Nc2 ed4) 9...Qe6 (9...d5 10.b5+= (10.cd5 e4 11.Be2 Qb4 12.Qc2 Bd5) 10...dc4 11.Qa4 Qb4 12.Qb4 Bb4) 10.Bb7= Kb7 11.d3 g6 (11...d5 12.cd5 Nd5 13.b5=) 12.Nd2 (12.Nc3 d5) 12...Bg7 (12...h5 13.Nef3+=; 12...h6+=) 13.Rc1 (13.a4 d5+=) 13...h5 14.d4 (14.a4 h4+=) 14...ed4= 15.ed4 Bh6 (15...Qg4 16.Qb3+=) 16.Rc2 (16.Nef3 Rde8+=) 16...Rde8 17.Nd3 White prepares c5 17...Rhg8 (17...Qe2 18.Nf3 Qd1 19.Rd1+=) 18.a3 (18.c5 dc5 19.dc5 Kb8+/–) 18...Qf5 (better is 18...Qe2 19.Nf3 Qd1 20.Rd1 c6+=) 19.c5 (better is 19.Nf3+=) 19...Qd3–/+ 20.c6 Kc8 (20...Kb8 21.cd7 Re2 22.f4–/+) 21.cd7 Nd7 (21...Kd7 22.Qb1 c6 23.Nf3–/+) 22.Nc4 (22.Qb1 Kb8 23.Nf3 d5+=) 22...Qd1 23.Rd1 Re7 (23...Kb7 24.d5–/+) 24.g3 (better is 24.Nd6 Kb8 25.Nc4=) 24...Rge8?? (better is 24...d5 25.Ne5 a6–/+) 25.Nd6+– Kd8 26.Ne8 Re8 27.Bc3 (27.b5 Bf8+–) 27...Nf6 (27...a6 28.f4+–) 28.d5 Ng4 (28...Ne4+–) 29.d6 cd6 30.Rd6 (30.h3!? Ne3 31.fe3 Kd7+–) 30...Ke7 31.Rd3 Kf8 32.Bd2 (32.Rd7!? a6+–) 32...Bd2 33.Rcd2 Ne5 34.Rd8?? (34.Rc3 b5+–) 34...Rd8?? (better is 34...Nf3 35.Kf1 Nd2 36.Rd2 Ke7=) 35.Rd8+– Kg7 36.Ra8 a5 (36...Nc6 37.b5 Nd4 38.a4+– (38.Ra7?! Nb5 39.Ra6 f6+–)) 37.ba5 ba5 38.Ra5 Nc6 (38...Kf6 39.a4+–) 39.Rc5 (39.Rb5 Nd4 40.a4 Ne2 41.Kg2 Nc3+–) 39...Nd4 (39...Nb8 40.a4+–) 40.a4 Nb3 (40...Ne6 41.Rc8+–) 41.Rb5 (41.Rd5!? Nc1 42.a5 Ne2 43.Kf1 Nc3+–) 41...Nd4 42.Rd5 Nc6 (42...Ne6 43.a5 Nc7 44.Rc5+–) 43.a5 Nb4 (43...Kf8 44.a6 Ke7 45.Rb5+–) 44.Rb5 (44.Rd6 Kh7 45.Rb6 Nd5+–) 44...Nc6 (44...Na6+–) 45.a6 Nd4 (45...Na7 46.Rc5 h4 47.Rc7+–) 46.Ra5 (better is 46.Rc5 Nf3 47.Kh1 Nd4+–) 46...Nc6 47.Rc5 (47.Rc5 Na7 48.Rc7+–) 1–0. valpa – Grunert, playchess.de, 2002.

7.0–0 g6 8.d4+= e4 9.Nfd2 Bg7 10.Nc3 0–0 11.f3 (11.Qc2 Re8+=) 11...Re8 (11...Bh6 12.f4+=) 12.Nde4+/– Ne4 13.fe4 Be4 (13...Nf6!?+=) 14.Ne4+/– Re4 15.Bf3 Nf6 (15...Re3 16.Qd2 Rf3 17.Rf3+/– (17.gf3?! d5=)) 16.Qd3 Qe7 17.Be4 (17.Be4 Qe4 18.Rad1+–) 1–0. pierre_d – boetie, ChessWorld.net, 2005.

7.0–0 h6 8.a3 A) 8...a5 9.Nc3 (9.b5 Be7 10.d4 e4 11.Nh4 0–0 12.Nf5 d5 13.cd5 Bd5 14.Nc3+=; 9.d4 e4 10.Nfd2 ab4 11.ab4 Ra1 12.Ba1 d5 13.b5 c6 14.Nc3+=; 9.d3 ab4 10.ab4 Ra1 11.Ba1 Be7 12.d4 0–0 13.Bc3 Re8 14.de5+=) 9...e4 10.Nd4 ab4 11.ab4 Ra1 12.Qa1 c5 13.Nf5 Qc8 14.f3+/–; B) 8...e4 9.Nd4 (9.Ne1 a5 10.d3 ed3 11.Bd3 Ne5 12.Be2 ab4 13.ab4 Ra1 14.Ba1+=; 9.Nh4 Ne5 10.f4 Ned7 11.Nc3 a5 12.Nf5 g6 13.Ng3 Rh7 14.d4+/–; 9.Bf6 Qf6 10.Nd4 c5 11.Nc2 d5 12.cd5 Bd6 13.Nc3 Qe5 14.g3=) 9...a5 10.b5 Ne5 11.Nc3 Qe7 12.Qb3 Qd7 13.f4 ef3 14.Nf3+/–; C) 8...Be7 9.Nc3 (9.d4 a5 10.d5 ab4 11.ab4 Ra1 12.Ba1 0–0 13.Nc3 c6 14.dc6+=; 9.Bc3 0–0 10.d4 e4 11.Nfd2 d5 12.f3 dc4 13.fe4 b5 14.Qc2=; 9.d3 0–0 10.Nc3 a5 11.b5 Re8 12.d4 ed4 13.Qd4 Nc5 14.Rad1+=) 9...e4 10.Nd4 a5 11.b5 Ne5 12.Qc2 0–0 13.f3 ef3 14.Nf3+=.

7.0–0 h6 8.d4+= e4 (8...Be7 9.de5 (9.a3 a5 10.d5 ab4 11.ab4 Ra1 12.Ba1 0–0 13.Nc3 c6 14.dc6+=; 9.d5 0–0 10.Nc3 a6 11.Qd3 a5 12.a3 c6 13.dc6 Bc6 14.e4+=; 9.Nc3 0–0 10.d5 a6 11.Qd3 a5 12.a3 c6 13.dc6 Bc6 14.e4+=) 9...de5 10.Ne5 Ne5 11.Be5 Qd1 12.Rd1 Bb4 13.Bc7 Ke7 14.a3+=; 8...a6 9.Qb3 (9.Nc3 Be7 10.d5 0–0 11.Qd3 c6 12.dc6 Bc6 13.e4 Re8 14.Rfd1+=; 9.d5 Be7 10.a4 a5 11.b5 0–0 12.Nc3 Bc8 13.Qc2 Re8 14.e4+=; 9.a3 e4 10.Nfd2 Qe7 11.d5 c6 12.dc6 Bc6 13.Nb3 Bb7 14.Nd4+/–) 9...a5 10.b5 e4 11.Nfd2 a4 12.Qc2 Qe7 13.d5 Nc5 14.Bd4+/–) 9.Nfd2 (9.Ne1 d5 10.Qb3 a5 11.b5 a4 12.Qc3 Bd6 13.Ba3 dc4 14.Bc4=; 9.Nh4 d5 10.Qb3 Nh5 11.g3 Nhf6 12.Nc3 c6 13.f3 a5 14.cd5+=) 9...c6 (9...d5 10.a3 dc4 11.Nc3 a6 12.Nc4 Be7 13.Qc2 Rc8 14.Nd2+/–) 10.b5 (10.Nc3 d5 11.a3 Qb8 12.f3 Bd6 13.fe4 Bh2 14.Kh1+=) 10...d5 11.bc6 (11.cd5 cb5 12.Bb5 Bd5 13.Nc3 Bb7 14.Qb3+=) 11...Bc6 12.cd5 (12.Nc3 Bb4 13.Qb3 Bc3 14.Bc3+=) 12...Bd5 (12...Nd5 13.Ne4 Ne3 14.fe3+/–) 13.Nc3 Bb4 (13...Bb7 14.f3+=) 14.Qa4 (better is 14.Nd5 Nd5 15.Ne4+–) 14...Bc3= 15.Bc3 0–0 16.Rfc1 a6 17.Qd1 (17.Ba6? Nb8–+) 17...b5 (17...Qe7 18.a4=) 18.a4+= Qb8 19.ab5 ab5 20.Ra8 Ba8 21.Qb3 Bd5 22.Qb5 Qc7 23.Bb2 Qd6 24.Qa6 Nb6? (better is 24...Qb4 25.Bc3 Qe7+/–) 25.Ba3+– Qb8 (25...Qe6 26.Bf8 Kf8 27.Bb5+–) 26.Bf8 (26.Rb1!? Nfd7 27.Bc5 Qa8 28.Bb6 Qa6 29.Ba6 Ra8+–) 26...Kf8 27.Rb1 Nfd7 28.Qa3 Kg8 29.Qe7 (29.Bg4 Qf8 30.Qf8 Kf8+–) 29...Qc8 (29...Qf8 30.Qh4+–) 30.Bg4 (30.Ne4?! Qc2 31.Rb6 Nb6+–) 30...Qc2 (30...Qf8 31.Qf8 Kf8 32.Bf5+–) 31.Qb4 (better is 31.Bd7 Nd7 32.Qd7+–) 31...g6 32.g3 Nf6 (32...Qd3+–) 33.Bd1 Qc7 34.Qa5 (better is 34.Qb6 Qb6 35.Rb6+–) 34...Nfd7 35.Ba4 Qc8 (35...Qd6+–) 36.Bd7 Nd7 37.Qd5 Nf6 38.Qc5 Qg4 (38...Qd8+–) 39.Rb8 Kh7 (39...Ne8 40.Re8 Kh7 41.Qf8 Qd1 42.Nf1 Qf1 43.Kf1 f5 44.Qe7) 40.Qf8 1–0. Kamaletdinov,Farit – Vekhtieva,Elena, Belorechensk Russia, Open, 2013.

7.d4=.

7.0–0 Be7

8.b5 0–0 9.d4 e4 10.Nfd2 d5 11.cd5 Bd5 12.Nc3 Bb7 13.Qc2 Re8 14.Nde4 Ne4 15.Ne4 Bh4 16.Bf3 Rb8 17.Rac1 Nf6 18.Nf6 Qf6 19.d5 Qg5 20.Rfd1 Bc8 (20...Qd8+–) 21.g3 Bg3 22.hg3 Bh3 23.Rd4 Re3 (23...Rbc8 24.Ra4+–) 24.fe3 Qe3 (24...Qg3 25.Bg2 Bd7 26.Qf2+–) 25.Qf2 Re8 26.Rc7 Qf2 27.Kf2 g6 28.d6 1–0. b4_player – Doro, internet, 2013.

8.d4 ed4 9.ed4 d5 10.c5 bc5 (10...0–0 11.Re1=) 11.bc5 0–0 12.Nc3 c6 13.Bd3 Re8 14.Re1 Nf8 15.Ne5 N6d7 16.Qc2 Ng6 17.Nd5 Nde5? (better is 17...cd5 18.c6 Nde5 19.cb7 Rb8 20.de5 Rb7+=) 18.Ne7+– Re7 19.de5 Qd5?? (better is 19...Qe8+–) 20.Red1 Qe6 (20...Re5 21.Bg6 hg6 22.Rd5 Rd5 23.Bg7 Kg7 24.Qb2 Kg8 25.Qb7 Rad8+–) 21.Bf5 Qf5 22.Qf5 Rae8 23.f4 Bc8 24.Qe4 Nh4 (24...Be6 25.Bc1 Bd5 26.Rd5 cd5 27.Qd5+–) 25.g3 Bf5 26.Qc6 (26.gh4?! Be4 27.Rd6 Rb8+/–) 26...Ng6 27.Rac1 Nf8 28.Qf3 Rb8 29.Qc3 (29.c6 a6+–) 29...Reb7 (29...Rc7 30.c6 Be4 31.Ba3 Rc6 32.Qd4 Rc1 33.Rc1+– (33.Qe4?! Rd1 34.Kg2 Rd2 35.Kh3 Ra2 36.Bf8 Rf8=)) 30.Ba3 Ne6 (30...Rc8 31.c6 Rb6 32.c7+–) 31.c6 Rc7 32.Bd6 g6 33.Bc7 Nc7 34.Rb1! Rc8 (34...Rb1 35.Rb1 Combination; 34...Bb1 35.Rd7 Combination) 35.Rb7 Ne6 36.c7 Kg7 37.Rd7 Nf4 38.gf4 1–0. Fournier,Frederic (2080) – NN, Active, 2004.

8.d4 0–0

9.a3 A) 9...a5 A1) 10.d5 c6 (10...ab4 11.ab4 Ra1 12.Ba1 b5 13.Nc3 bc4; 10...b5 11.Nc3 bc4 12.Bc4 ab4 13.ab4 Ra1) 11.dc6 Bc6 12.b5 Bb7 13.Nc3 Rc8; A2) 10.Nc3 e4 (10...ab4 11.ab4 Ra1 12.Qa1 ed4 13.Nd4 Ne5; 10...c5 11.bc5 bc5 12.Rb1 cd4 13.ed4 Rc8; 10...Re8 11.b5 ed4 12.Nd4 Ra7 13.Nf5 Bf8) 11.Nd2 ab4 12.ab4 Ra1 13.Qa1 d5; A3) 10.b5 e4 11.Nfd2 d5 12.Nc3 dc4 13.f3 c6; B) 9...e4 10.Nfd2 c6 (10...a5 11.d5 c6 12.dc6 Bc6 13.Nc3 ab4) 11.Nc3 d5 12.f3 ef3 13.Bf3 a5.

9.Nc3 A) 9...a5 10.b5 Re8 11.a3 ed4 12.Qd4 Ne5 13.e4 Nfd7; B) 9...c5 B1) 10.a3 a5 (10...e4 11.Nd2 d5 12.dc5 bc5 13.cd5 Nd5; 10...cd4 11.ed4 Re8 12.d5 Bc8 13.Re1 Qc7; 10...Re8 11.d5 cb4 12.ab4 a5 13.Qa4 ab4) 11.bc5 bc5 12.Rb1 cd4 13.ed4 Rc8; B2) 10.b5 cd4 11.ed4 Rc8 12.d5 Nc5 13.Re1 a6; B3) 10.bc5 bc5 11.Rb1 cd4 12.ed4 Rc8 13.Re1 Re8; C) 9...c6 C1) 10.a3 e4 (10...a5 11.b5 cb5 12.Nb5 e4 13.Nd2 d5; 10...c5 11.d5 Re8 12.Bd3 cb4 13.ab4 a5) 11.Nd2 d5 12.f3 ef3 13.Bf3 a5; C2) 10.Qa4 Re8 (10...a6 11.a3 e4 12.Nd2 d5 13.Qb3 Qc7; 10...Qc7 11.a3 Rfe8 12.Qc2 a6 13.Rfd1 ed4; 10...e4 11.Nd2 d5 12.cd5 cd5 13.f3 ef3) 11.Rfd1 e4 12.Nh4 d5 13.cd5 cd5; C3) 10.Bd3 c5 (10...ed4 11.Nd4 c5 12.bc5 dc5 13.Nf5 Re8) 11.bc5 bc5 12.d5 Rb8 13.Rb1 Bc8; D) 9...Re8 D1) 10.a3 a6 (10...a5 11.b5 ed4 12.Qd4 Ne5 13.Ne5 de5; 10...Qc8 11.d5 c6 12.dc6 Qc6 13.Qd2 a5; 10...ed4 11.Qd4 Ne5 12.e4 a5 13.b5 Nfd7) 11.Qc2 a5 12.Rfd1 ed4 13.Nd4 ab4; D2) 10.Re1 ed4 11.Nd4 c5 12.Nf5 cb4 13.Nb5 Be4; D3) 10.d5 a5 (10...c6 11.dc6 Bc6 12.a3 Rc8 13.Nb5 Bb5; 10...c5 11.dc6 Bc6 12.a3 Rc8 13.Nb5 Bb5; 10...Bc8 11.Qd3 a5 12.a3 Nb8 13.Ne4 Ne4) 11.b5 Bc8 12.Qc2 h6 13.e4 Nf8.

9.d5 A) 9...c6 10.Nc3 (10.dc6 Bc6 11.Nc3 Rc8 12.Nh4 Bb7 13.a3 d5) 10...a5 (10...cd5 11.cd5 a5 12.a3 ab4 13.ab4 e4; 10...a6 11.e4 cd5 12.cd5 a5 13.a3 ab4; 10...Rc8 11.dc6 Bc6 12.Nd2 a6 13.e4 a5) 11.dc6 Bc6 12.b5 Bb7 13.Ba3 Qc7; B) 9...c5 10.b5 (10.dc6 Bc6 11.Nc3 Rc8 12.Nd2 a5 13.b5 Bb7) 10...a6 (10...Re8 11.Nc3 a6 12.ba6 Ba6 13.Rb1 h6; 10...Bc8 11.Nc3 Re8 12.Bd3 a6 13.ba6 Ra6; 10...Qc7 11.Nc3 Rfe8 12.Qc2 a6 13.Bd3 Ra7) 11.Nc3 ab5 12.Nb5 Bc8 13.Qc2 Re8; C) 9...a6 C1) 10.Nbd2 c6 (10...Rc8 11.a4 a5 12.ba5 ba5 13.Nb3 c6; 10...Qe8 11.a4 a5 12.ba5 ba5 13.Bc3 c6; 10...Rb8 11.Rc1 c5 12.dc6 Bc6 13.Bd3 Qc7) 11.dc6 Bc6 12.a4 Qc7 13.a5 ba5; C2) 10.Nc3 c6 (10...Rc8 11.e4 a5 12.a3 c6 13.dc6 Bc6; 10...Rb8 11.e4 Ra8 12.Qd3 a5 13.a3 Nh5; 10...c5 11.dc6 Bc6 12.Nh4 a5 13.b5 Bb7) 11.dc6 Bc6 12.Nh4 a5 13.b5 Bb7; D) 9...a5= D1) 10.a3 c6 (10...ab4 11.ab4 Ra1 12.Ba1 b5 13.Nc3 bc4; 10...b5 11.Nc3 bc4 12.Bc4 ab4 13.ab4 Ra1) 11.dc6 Bc6 12.b5 Bb7 13.Nc3 Rc8; D2) 10.b5 Nc5 (10...a4 11.Nc3 Nc5 12.Ba3 Nfd7 13.Qc2 Bc8; 10...Bc8 11.Nc3 Re8 12.e4 Nf8 13.Qd3 Ng6; 10...Re8 11.Nc3 Nc5 12.Qc2 Bc8 13.Ba3 Nfd7) 11.Nc3 Bc8 12.Na4 Na4 13.Qa4 Bf5.

9.de5 de5 A) 10.a3 c5 (10...e4 11.Ne5 c5 12.Nd7 Nd7 13.Qa4 Bd6; 10...a5 11.b5 Bd6 12.Nc3 Qe7 13.Qd2 Rfd8; 10...Bf3 11.Bf3 e4 12.Be2 c5 13.Qd2 Qb8) 11.Ne5 cb4 12.Bf3 ba3 13.Na3 Bf3; B) 10.b5 Bd6 (10...e4 11.Nd4 a6 12.Qc2 Qe8 13.Nf5 Bc5) 11.Nc3 Qe8 12.Qd2 Rd8 13.Rfd1 e4; C) 10.Ne5 Bb4 11.Bf3 Bf3 12.Qf3 Ne5 13.Be5= Nd7.

9.de5 Ne5 10.Nbd2 (10.a3 a5 (10...Nfd7 11.Nc3 a5 12.Nd5 Re8 13.Nd4 Nf6) 11.Ne5 de5 12.ba5 Qe8 13.Be5 Ra5; 10.Ne5 de5 11.Qd8 Rfd8 12.Be5 Bb4 13.Bc7 Rd7; 10.b5 Nfd7 (10...Ned7 11.Nc3 a6 12.Nd4 Re8 13.ba6 Ra6; 10...Ng6 11.Bd4 Re8 12.Nbd2 a6 13.a4 Qd7) 11.Nbd2 a6 12.Qc2 Bf6 13.Ne5 Be5) 10...Nf3 (10...Nfd7 11.a3 Bf6 12.Nd4 Re8 13.f4 Nc6; 10...Re8 11.b5 Bf8 12.Qc2 a6 13.Rfd1 Qe7; 10...a6 11.a3 Nfd7 12.Ne5 de5 13.Bf3 Bf3; 10...c6 11.a3 Qc7 12.Nd4 Rfe8 13.f4 Ng6) 11.Bf3 (worse is 11.gf3 d5 12.Rb1 (12.a3 c5 13.Qb3 dc4) 12...dc4 (12...a5 13.b5 Bb4) 13.Nc4 Nd5+=) 11...d5 12.a3 Bd6 (12...a5 13.b5+= Qd7; 12...c6 13.Rc1 Qd7) 13.Bf6 (better is 13.cd5 Nd5 14.Ne4+/–) 13...gf6 (13...Qf6!? 14.Bd5 c6+=) 14.Bd5+/– Bd5 15.Qg4 Kh8 16.cd5 Rg8 (16...Be5 17.Rad1 Qd5 18.Nf3+/–) 17.Qf5 (better is 17.Qf3!?+–) 17...Be5+/– 18.Rac1?? (better is 18.Ne4 Ba1 19.Ra1+/–) 18...Qd6?? (better is 18...Qd5 19.g3 Qd2–+) 19.Nf3 (better is 19.f4!? Qd5 20.Rf2 Rgd8 21.fe5 Qe5 22.Qe5 fe5 23.Rc7 Kg8+–) 19...Bb2? (better is 19...Qd5 20.e4 Qb5+–) 20.Rc6 Qe7 21.a4 (21.Rb1 Ba3 22.d6 cd6+–) 21...Rg6 22.Rb1 Ba3 (22...Be5 23.Rbc1+–) 23.Nh4 (better is 23.d6!? cd6 24.Rb3 d5 25.Ra3 Qb4+–) 23...Rg5 24.Qf6 (24.Qf3 Rag8 25.Rc4 Qe5+–) 24...Qf6 25.Rf6 Kg7 (25...Rd5 26.Rf7 Bb4 27.Rc7+–) 26.Rf5 (26.Rf3 a5 27.b5 Re8+–) 26...Rg4 27.Rf4 (better is 27.Rh5+–) 27...Rg5?? (better is 27...Rf4 28.ef4 a5+/–) 28.e4 (better is 28.Nf5!? Kg6 29.Ne7 Kg7+–) 28...a5 29.b5 Bd6 (29...Re8 30.Nf5 Kf8 31.Rd1+–) 30.Nf5 Kf8 (30...Kg8 31.Nd6 cd6 32.Rc1+–) 31.Nd6 cd6 32.Rc1 Kg7 (32...Rb8 33.h4 Re5 34.Rc6+–) 33.Rc6 (33.Rc7 Rf8+–) 33...Rg8 (33...Re8 34.Rd6 (34.Rb6?! Rd5 35.f3 Rd4+–) 34...Rg6 35.Rd7+–) 34.h4 (34.Rb6 Rc8 35.h4 Rg6+–) 34...Rg6 (34...Re5 35.Rb6 f5 36.ef5 Rd5 37.f6 Kh6 38.Ra6+–) 35.Rb6 Kh8 (35...h5 36.Rf5+–) 36.g3 1–0. hal1958 – Pantakrator, playchess.de, 2002.

7.d3 Be7

8.0–0 0–0 9.a3 A) 9...c5 A1) 10.Nbd2 Qc7 (10...Re8 11.Re1 Qc7 12.e4 a6 13.Rb1 Bc6 14.Qc2 Ra7=; 10...a6 11.Re1 Qc7 12.d4 Rfc8 13.d5 cb4 14.ab4 a5=) 11.d4 Rfe8 12.bc5 bc5 13.d5 Reb8 14.Rb1 Bc8=; A2) 10.e4 a6 (10...Qc7 11.Nh4 Rfe8 12.Nf5 cb4 13.ab4 a5 14.Qd2 Nf8+=; 10...Bc8 11.Qa4 Qc7 12.Nfd2 a6 13.Nc3 Re8 14.f4 ef4=; 10...Re8 11.Nc3 a6 12.Qc2 Qc7 13.b5 Bc8 14.Rfb1 Qd8+=) 11.Nbd2 Re8 12.Rb1 Qc7 13.Re1 b5 14.Qb3 Bc6=; A3) 10.Nc3 Re8 11.e4 a6 12.Qd2 Qc7 13.b5 Ra7 14.Rab1 h6+=; B) 9...Re8 B1) 10.Nbd2 c5 (10...a6 11.d4 ed4 12.Nd4 d5 13.Bf3 c5 14.Nf5 cb4=) 11.e4 Qc7 12.b5 a6 13.ba6 Ra6 14.Qb3 Bc6=; B2) 10.Nc3 c5 11.e4 a6 12.Qc2 Bc6 13.Bc1 Qc7 14.Nd5 Nd5=; B3) 10.e4 c6 (10...c5 11.Nc3 a6 12.Qc2 Qc7 13.b5 Bc8 14.ba6 Ra6=; 10...a6 11.Nc3 c5 12.Qc2 Qc7 13.b5 ab5 14.Nb5 Qc6=; 10...Bc8 11.Qa4 Bb7 12.Nc3 a5 13.Qc2 ab4 14.ab4 c6+=) 11.Nbd2 Bf8 12.Ng5 d5 13.Bh5 g6 14.Bg4 Bh6=; B4) 10.Qd2 c5 (10...a6 11.Nc3 c5 12.e4 Qc7 13.Ng5 Ra7 14.f4 ef4=; 10...e4 11.Nd4 Ne5 12.Nc3 ed3 13.Bd3 Nd3 14.Qd3 Nd7=) 11.e4 cb4 12.ab4 a5 13.Bc3 b5 14.cb5 a4=; B5) 10.Re1 c5 (10...c6 11.Nbd2 a5 12.Qc2 Qc7 13.d4 ed4 14.Nd4 Ne5=; 10...a6 11.Nc3 c6 12.d4 e4 13.Nd2 d5 14.Qb3 Qb8=; 10...a5 11.b5 c6 12.Nc3 Rc8 13.bc6 Bc6 14.Nb5 Bb5+=; 10...Rc8 11.Nc3 c5 12.e4 a6 13.b5 ab5 14.Nb5 Nf8=) 11.Nc3 cb4 12.ab4 a5 13.Qb3 ab4 14.Ra8 Qa8=; B6) 10.d4 e4 11.Nh4 a5 12.Nf5 d5 13.b5 c5 14.Nc3 Bf8+=; C) 9...a6 10.d4 e4 11.Nfd2 c6 12.Nc3 d5 13.f3 ef3 14.Bf3 Re8=; D) 9...a5 D1) 10.Nc3 c5 (10...c6 11.b5 Qc7 12.bc6 Bc6 13.Rc1 Rac8 14.Nb5 Qb8=; 10...d5 11.Nd5 Nd5 12.cd5 ab4 13.ab4 Bd5 14.e4 Bb7=; 10...ab4 11.ab4 Ra1 12.Qa1 c6 13.b5 Qc7 14.d4 c5=) 11.Qd2 ab4 12.ab4 cb4 13.Nb5 d5 14.Be5 Ne5+=; D2) 10.Nbd2 ab4 11.ab4 Ra1 12.Qa1 c5 13.Bc3 Qc7 14.Qb2 Ra8=; D3) 10.b5 e4 11.Nd4 ed3 12.Bd3 Ne5 13.Nc3 Re8 14.Nf5 Bf8=.

8.0–0 0–0 9.Qc2 a5 10.b5 a4 (10...c6 11.Nc3 cb5 12.Nb5 Rc8 13.e4 Nc5 14.Bc1 Nfd7=; 10...c5 11.Nc3 Re8 12.Nd2 Qc7 13.Bf3 Bf3 14.Nf3 Qb7+=; 10...Rc8 11.d4 ed4 12.Nd4 Re8 13.Nc3 Nc5 14.Rfd1 Qd7+=) 11.d4 ed4 12.Bd4 Ne4 13.Nc3 Nc3 14.Qc3 Bf6=.

8.0–0 0–0 9.Qc2 a6 10.Nbd2 (10.Nc3 c5 11.bc5 dc5 12.Rab1 Qc7 13.Nh4 Rad8 14.Nf5 Bd6=; 10.a3 c5 11.bc5 bc5 12.Nbd2 Rb8 13.Rfb1 Ng4 14.d4 cd4=; 10.e4 c5 11.a3 Rc8 12.Nbd2 Nh5 13.Rfb1 Nf4 14.Bf1 Qc7=) 10...c5 11.bc5 bc5 12.d4 cd4 13.ed4 Qc7 14.Rab1 Rab8=.

8.0–0 0–0 9.Qc2 c5 A) 10.b5 Qb8 (10...Re8 11.Nc3 a6 12.Rfb1 ab5 13.Nb5 Bc6 14.Qb3 e4+=; 10...Qc7 11.Nc3 a6 12.Rfb1 Rfe8 13.ba6 Ra6 14.Nb5 Qc6=; 10...a6 11.Nc3 Qb8 12.ba6 Ra6 13.Rfb1 Re8 14.e4 Qc7=) 11.Nc3 d5 12.cd5 Nd5 13.Rfd1 Rc8 14.Nd5 Bd5=; B) 10.a3 Qc7 (10...Re8 11.Nc3 a6 12.Rfb1 cb4 13.ab4 d5 14.b5 dc4=; 10...a6 11.Nbd2 Qc7 12.d4 cd4 13.ed4 e4 14.Nh4 g6=; 10...cb4 11.ab4 Qc7 12.Na3 a6 13.b5 a5 14.Rfc1 Rfc8=) 11.Nc3 cb4 12.ab4 d5 13.Rfc1 dc4 14.Nb5 Qb8=; C) 10.bc5 bc5 11.Nbd2 Rb8 12.Rfb1 Ng4 13.d4 Bh4 14.g3 Bf6+=.

8.0–0 0–0 9.Nc3 A) 9...Re8 A1) 10.e4 c6 (10...a6 11.a3 Bc8 12.d4 Bb7 13.Qc2 a5 14.Rfd1 ed4+=; 10...c5 11.a3 Qc7 12.Nd2 a6 13.b5 Bc8 14.ba6 Ra6+=; 10...Rc8 11.Qa4 a6 12.Nd5 c6 13.Nf6 Nf6 14.Qc2 c5=) 11.d4 c5 12.bc5 Ne4 13.cb6 Nc3 14.Bc3 ab6=; A2) 10.Qd2 c5 (10...a6 11.a3 c5 12.e4 Bc6 13.Rfb1 b5 14.Qc2 Qb6=; 10...a5 11.b5 a4 12.e4 a3 13.Bc1 Rf8 14.Nb1 Nh5+=; 10...c6 11.a3 d5 12.cd5 cd5 13.Rfc1 Rc8 14.d4 e4=) 11.a3 d5 12.Nd5 Nd5 13.cd5 Bd5 14.e4 Bc6=; A3) 10.d4 c5 11.bc5 bc5 12.de5 de5 13.Rb1 a6 14.Qc2 e4=; A4) 10.a3 c5 11.e4 a6 12.Qd2 Qc7 13.Rfb1 Bc8 14.Bc1 Ra7=; B) 9...c5 B1) 10.b5 a6 (10...Qc7 11.Nh4 d5 12.Nf5 Rae8 13.cd5 Nd5 14.Bf3 Nc3+=) 11.ba6 Ra6 12.Nb5 Qb8 13.d4 cd4 14.ed4 Re8=; B2) 10.a3 Re8 (10...a6 11.d4 cd4 12.ed4 Qc7 13.Rc1 Rfe8 14.Re1 a5+=) 11.e4 a6 12.Qc2 Qc7 13.b5 ab5 14.Nb5 Qb8=.

8.0–0 0–0 9.Qd2 c6 A) 10.Rc1 a6 (10...Re8 11.d4 a5 12.b5 cb5 13.cb5 e4 14.Ng5 a4=; 10...c5 11.b5 Re8 12.Nc3 Qc7 13.e4 a6 14.Rcb1 a5=; 10...a5 11.b5 cb5 12.cb5 a4 13.Na3 Bd5 14.Qc2 Qb8=) 11.Nc3 d5 12.cd5 Bb4 13.dc6 Bc6 14.a3 Ba5=; B) 10.Nc3 d5 (10...Re8 11.a3 d5 12.cd5 cd5 13.Rfc1 Rc8 14.d4 e4=) 11.b5 dc4 12.dc4 Qc7 13.Rad1 Rfd8 14.Qc2 cb5=; C) 10.Bc3 Re8 (10...Qc7 11.Nh4 Rae8 12.Nf5 d5 13.Na3 c5 14.Ne7 Re7=) 11.Rd1 c5 12.bc5 Nc5 13.e4 Qc7 14.Na3 a6+=; D) 10.Rd1 a5 (10...Re8 11.d4 e4 12.Nh4 a5 13.Nf5 ab4 14.Qb4 Ra5=) 11.ba5 Ra5 12.Qc2 Qc7 13.d4 Rfa8 14.Bc3 Ra4=.

8.0–0 0–0 9.Qc2 Re8 A) 10.Nbd2 Nf8 (10...a6 11.a3 c5 12.bc5 bc5 13.Rab1 Qc7 14.Ne1 Rab8=; 10...a5 11.b5 a4 12.a3 Qc8 13.d4 Bf8 14.Rad1 ed4+=; 10...c5 11.a3 Qc7 12.e4 a6 13.Bc3 Rec8 14.bc5 Nc5=) 11.b5 a6 12.d4 e4 13.Ne1 ab5 14.cb5 Ne6=; B) 10.a3 a6 (10...c5 11.Nc3 a6 12.e4 Qc7 13.b5 Ra7 14.ba6 Ra6=) 11.Nbd2 c5 12.bc5 bc5 13.Rab1 Qc7 14.Ng5 Rab8=; C) 10.e4 a6 (10...c5 11.a3 Qc7 12.Nc3 Bc8 13.Rfb1 a6 14.Bc1 Ra7+=; 10...Rc8 11.Nbd2 a6 12.a4 c5 13.b5 Ra8 14.Bc3 Nh5=; 10...c6 11.a3 Qc7 12.d4 c5 13.d5 cb4 14.ab4 a5=; 10...a5 11.b5 Nc5 12.Nc3 Rc8 13.Rab1 Qd7 14.Bc1 Ra8+=; 10...Rb8 11.Nbd2 a6 12.a3 c5 13.Rfb1 Qc7 14.Bc3 Nh5=) 11.Nbd2 c5 12.a3 Qc7 13.Bc3 Rec8 14.bc5 Nc5=; D) 10.Nc3 c5 11.a3 d5 12.Nd5 Nd5 13.cd5 cb4 14.ab4 Bb4=.

8.0–0 0–0 9.Qc2 Ne8 10.Nbd2 (10.d4 Nef6 11.a3 a5 12.Nbd2 e4 13.Ng5 d5 14.cd5 Nd5+=) 10...Bf6 (10...Nef6 11.a3 a5 12.d4 e4 13.Ng5 d5 14.cd5 Nd5+=; 10...f5 11.d4 e4 12.Ne1 c5 13.a3 Bf6 14.Rd1 cd4=; 10...c5 11.bc5 bc5 12.d4 Qc7 13.Qf5 g6 14.Qh3 cd4=) 11.e4 (11.d4 c5 12.Bd3 ed4 13.ed4 h6 14.Bc3 d5+=) 11...Qe7 12.a3 (12.a4 a5 13.ba5 Ra5 14.Nb3 Ra6+=) 12...g6 (12...c5 13.Rfb1 a6 14.Bc1 Nc7=) 13.Rfe1 (13.Rfd1 c5 14.Re1 Bg7=) 13...Ng7 (13...c5 14.b5 Bg7=) 14.d4 ed4 15.Nd4 Bd4 (15...Rfe8 16.Nb5 Bb2 17.Qb2=) 16.Bd4+= Ne6 17.Bb2 f6 18.Bd3 (18.Qc3 a5+=) 18...Ne5 19.Be2 Rf7 (19...Nd7 20.Qd3+=) 20.Rf1 (20.Qc3!?+=) 20...Nf4= 21.Rae1 Raf8 (21...f5 22.g3 Qg5 23.b5=) 22.Be5 (better is 22.f3!?=) 22...fe5+= 23.Bf3 Bc8 24.Re3 Qg5 25.Kh1? (25.g3 Nh3 26.Kg2 Qh6–/+) 25...Bg4 (better is 25...Ng2 26.Rc3 Nf4–+) 26.Rg1 Ne6 27.Bg4 (27.Qd1 h5=) 27...Qg4+= 28.f3 Qg5 29.Nf1 Nd4 30.Qd2 Qf6 (30...a6 31.Rd3 Qd2 32.Nd2=) 31.Ng3= Qe6 32.Qd3 Qd7 33.Ne2 c5 34.b5 Ne6 (34...Qb7 35.Rd1+=) 35.Rd1 Nd4 36.Nc3 Qd8 37.Qd2 Qg5 38.Rd3 Qd2 39.R3d2 Rd7 (39...g5 40.Kg1=) 40.Nd5 g5 41.Ne3 Kg7 42.Kg1 Kf6 43.Nf5 (43.Nd5 Ke6+=) 43...Ke6 44.Ne3 Kf6 45.a4 (45.Kf2 Ke6+=) 45...Ke6 46.Ng4 (46.h3 h5+=) 46...h5 47.Ne3 Kf6 48.Kf2 Ke6 (better is 48...g4 49.fg4 Kg5 50.Kg1 hg4=) 49.Nd5 (49.h3 Rdf7 50.Kg1 Rg7+=) 49...Rdf7 (49...g4 50.Ke3 gf3 51.Rf2–/+) 50.Ra2 (50.Kg3 Rg7 51.h3 Rgf7+=) 50...Rb7 (50...g4 51.a5 ba5 52.Ra5 gf3 53.Rd3–/+) 51.Ne3 (better is 51.Kg3!?+=) 51...Rd7 (better is 51...g4!?–/+) 52.Nc2 0–1. Kubecka,Anna – Richter,Urszula, POL–chT3 Poland, 2002.

8.0–0 0–0 9.Nbd2 A) 9...a5 10.b5 (10.a3 ab4 11.ab4 Ra1 12.Qa1 c5 13.bc5 bc5 14.d4 cd4=) 10...a4 11.a3 Re8 12.d4 ed4 13.Nd4 Ne5 14.Qc2 Nfd7+=; B) 9...Re8 B1) 10.Re1 a6 (10...c6 11.a3 a5 12.Qc2 Qc7 13.d4 ab4 14.ab4 ed4=) 11.a3 c5 12.d4 ed4 13.ed4 d5 14.dc5 bc5=; B2) 10.Bc3 d5 (10...c5 11.bc5 bc5 12.Rb1 Qc7 13.Rb2 Rab8 14.Qc2 Bc6=; 10...a6 11.d4 ed4 12.Nd4 c5 13.Nf5 cb4 14.Bb4 Qc7=) 11.Qc2 Bd6 12.d4 e4 13.Ng5 c5 14.bc5 bc5=; B3) 10.e4 Nf8 (10...c5 11.a3 Qc7 12.Rb1 cb4 13.ab4 a5 14.b5 Nc5=; 10...a5 11.b5 a4 12.a3 Nc5 13.Qc2 Nh5 14.g3 Nf6=; 10...Rc8 11.a4 a6 12.Qb3 Rb8 13.Qc2 c6 14.b5 Qc7=; 10...a6 11.a3 c5 12.Rb1 Qc7 13.Re1 Bc8 14.Bc1 cb4=; 10...c6 11.a3 a5 12.Qc2 ab4 13.ab4 d5 14.Ra8 Ba8=) 11.Qc2 Ne6 12.Rfe1 Nf4 13.a3 Qd7 14.Bf1 Qg4+=; B4) 10.Qc2 a6 (10...c5 11.bc5 bc5 12.Rab1 Rb8 13.a3 Qc7 14.Ng5 Nb6=; 10...a5 11.b5 a4 12.d4 Bf8 13.a3 ed4 14.Bd4 Qe7+=; 10...Nf8 11.a3 c5 12.d4 ed4 13.ed4 cb4 14.ab4 d5=) 11.e4 c5 12.a3 Qc7 13.Bc3 Nh5 14.Rae1 Nf4+=; B5) 10.Rb1 c6 (10...a5 11.b5 a4 12.d4 a3 13.Bc3 e4 14.Ng5 d5=; 10...a6 11.d4 e4 12.Ng5 d5 13.a3 a5 14.b5 Bd6=) 11.Bc3 c5 12.bc5 Nc5 13.d4 ed4 14.Nd4 Rc8=; B6) 10.a3 c5 11.bc5 bc5 12.Rb1 Rb8 13.Qc2 Qc7 14.Ng5 Nb6=; B7) 10.Qa4 a5 11.b5 Nc5 12.Qc2 e4 13.Ne1 ed3 14.Nd3 Nce4=; C) 9...c5 10.a3 (10.bc5 bc5 11.d4 cd4 12.ed4 Rb8 13.de5 de5 14.Be5 Ne5=) 10...Qc7 (10...Re8 11.Rb1 cb4 12.ab4 Qc7 13.e4 a5 14.b5 Nc5=) 11.d4 Rfe8 12.bc5 bc5 13.d5 Reb8 14.Rb1 Bc8=; D) 9...a6 10.a3 Rc8 (10...Re8 11.d4 ed4 12.Nd4 d5 13.Nf5 dc4 14.Nc4 b5+=; 10...c5 11.d4 Qc7 12.d5 Rfe8 13.e4 cb4 14.ab4 a5=) 11.d4 e4 12.Nh4 g6 13.g3 d5 14.f3 c5=.

8.0–0 0–0 9.e4 A) 9...c5 A1) 10.a3 a6 (10...Qc7 11.Nc3 a6 12.b5 Rfe8 13.Rb1 a5 14.Bc1 Nf8+=; 10...Bc8 11.Qa4 Qc7 12.Nfd2 Bb7 13.f4 a6 14.Nc3 ef4=; 10...Re8 11.Nbd2 Qc7 12.Bc1 cb4 13.ab4 d5 14.cd5 Bb4=) 11.Nbd2 Bc8 12.Rb1 Qc7 13.Bc1 cb4 14.ab4 a5=; A2) 10.b5 a6 11.ba6 Ra6 12.Nfd2 Ne8 13.f4 Qa8 14.Nc3 f5=; B) 9...a6 B1) 10.Nc3 c5 (10...Re8 11.a3 a5 12.b5 Nc5 13.Bc1 Bc8 14.Be3 Ng4+=; 10...Ra7 11.a3 c5 12.Qc2 Ng4 13.Nd5 f5 14.h3 Bd5+=) 11.a3 Re8 12.Qd2 Bc8 13.Rfb1 Qc7 14.Bc1 Qd8=; B2) 10.Nbd2 Re8 (10...c5 11.a3 Bc8 12.Rb1 Qc7 13.Bc1 cb4 14.ab4 a5=; 10...Rc8 11.a3 c5 12.Re1 b5 13.Qc2 Qc7 14.Rac1 cb4=; 10...Rb8 11.a3 c5 12.Rb1 Rc8 13.Qc2 cb4 14.ab4 Qc7=) 11.Qc2 c5 12.a3 Qc7 13.bc5 dc5 14.a4 Qd6=; B3) 10.a3 Ra7 (10...Re8 11.Nc3 a5 12.b5 Nc5 13.Bc1 Bc8 14.Be3 Ng4+=; 10...b5 11.d4 ed4 12.cb5 ab5 13.Nd4 c5 14.Nb5 Ne4+=; 10...Bc8 11.d4 ed4 12.Qd4 Re8 13.Nc3 c6 14.Rad1 Qc7+=; 10...Ne8 11.Nc3 f5 12.Qc2 fe4 13.de4 a5 14.Rfd1 Bg5+=; 10...c5 11.Nbd2 Bc8 12.Rb1 Qc7 13.Nh4 Nb8 14.f4 Nc6=; 10...Rc8 11.Nfd2 c6 12.f4 Qc7 13.Nc3 ef4 14.d4 Rfe8=) 11.Nfd2 Re8 12.f4 c6 13.g4 h6 14.g5 hg5=; B4) 10.Re1 d5 (10...c5 11.a3 Qc7 12.Nbd2 Rfc8 13.Nh4 Qd8 14.Nf5 Bf8+=; 10...Re8 11.Nc3 d5 12.ed5 Bb4 13.Qb3 Ba5 14.d4 ed4=) 11.cd5 Bb4 12.Nbd2 Qe7 13.a3 Bd2 14.Qd2 Rfe8=; B5) 10.Qc2 c5 11.a3 Ng4 12.Nc3 f5 13.h3 Nh6 14.Bc1 Nf7=; C) 9...Re8 C1) 10.a3 Rc8 (10...c5 11.Nbd2 Qc7 12.Rb1 cb4 13.ab4 a5 14.b5 Nc5=; 10...c6 11.Nbd2 c5 12.Qc2 Qc7 13.b5 a6 14.ba6 Ra6=; 10...Bc8 11.Qa4 Bb7 12.Nc3 a6 13.Qc2 c5 14.Rfb1 Bc8=; 10...a6 11.Nc3 Qc8 12.Nd5 c6 13.Ne7 Re7 14.Nh4 d5+=) 11.Nc3 a6 12.Bc1 c6 13.d4 ed4 14.Nd4 c5–/+; C2) 10.Nbd2 Nf8 (10...c5 11.bc5 Nc5 12.Nb3 Bc8 13.Nc5 bc5 14.Rb1 Rb8=; 10...a5 11.b5 a4 12.Qc2 Nc5 13.a3 Qd7 14.Rae1 Ne6=; 10...Rc8 11.Qc2 a6 12.a4 Nh5 13.Bd1 Nf4 14.Rb1 c5=; 10...a6 11.a3 c5 12.Rb1 Qc7 13.Re1 cb4 14.ab4 a5=; 10...c6 11.a3 c5 12.Rb1 Qc7 13.Re1 cb4 14.ab4 a5=) 11.Qc2 Ne6 12.Rfe1 Nf4 13.a3 Qd7 14.Bf1 Qg4+=; C3) 10.Nc3 c6 (10...a6 11.Qc2 Rc8 12.a3 c6 13.Qb3 b5 14.Rfe1 d5=; 10...c5 11.a3 a6 12.Qc2 Qc7 13.b5 ab5 14.Nb5 Qc6=) 11.d4 c5 12.bc5 Ne4 13.cb6 Nc3 14.Bc3 ab6=.

8.Nbd2 0–0 9.0–0 h6 10.a3 Re8 11.e4 c5 12.bc5 bc5 13.Rb1 Bc6 14.Bc3 a5 15.Nb3 Rb8 (better is 15...a4!? 16.Nbd2 Qc7=) 16.Na5+/– Rb1 17.Qb1 Qb6?? (better is 17...Ba8+/–) 18.Qb6+– Nb6 19.Nc6 1–0. Fournier,Frederic – Chess_Pilot, ICC, 2005.

6.Be2 Be7

7.0–0 0–0 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 b6 7.0–0 Bb7).

7.0–0 d5 8.Ne5 Bb4?? (better is 8...0–0 9.Qa4 Qd6+/–) 9.Qa4+– Nbd7 10.Qb4 Ne5 (10...c5 11.Qb3+–) 11.Be5 c5 (11...c5 12.Qb5 Qd7+–). pcmvr (2450) – mkopple (2145), net–chess.com, 2006.

7.Qc2 0–0 8.h4 h6 9.Nc3 Nh7 10.Nd5 f5 11.0–0–0 Bd5 12.cd5 Nd7 13.Bb5 a6 14.Bc6 Rb8 15.Rdg1 e4 16.Nd4 Bf6 17.Ne6 Bb2 18.Qb2 Qf6?? (better is 18...Ne5 19.Kb1 Qe7 20.Nf8 Rf8+/–) 19.Bd7+– Qb2 20.Kb2 Rf7 21.Bc6 Nf6 22.f3 a5 23.a3 Nh5 (23...Re7 24.b5+–) 24.g4 fg4 25.fg4 (worse is 25.fe4 g3+–) 25...Nf6 26.g5 hg5 27.Rg5 Nh7 28.Rg2 Nf8 29.Rhg1 Ne6 30.de6 Re7 31.Be4 c5 32.b5 Rc8 (32...Kh8 33.Rg6 Rbe8 34.Rf1+–) 33.h5 Kh8 34.Bd5 (34.h6!? g6 35.Rg6 d5+–) 34...c4 35.Bc6 Kh7 36.Kc3 Rd8 (36...Rf8 37.Rg6 Rf6 38.Rf6 gf6 39.Bd7+–) 37.Kc4 Kh6 (37...d5 38.Bd5 Kh8 39.Rf2 Rc7 40.Kd4+–) 38.Rg6 Kh5 (38...Kh7+–) 39.Bf3 1–0. combijack (1820) – iamlam, gameknot.com, 2011.

7.d3 0–0 8.0–0 Ng4 9.h3 Ne3?? (better is 9...Nf6=) 10.fe3+– Bg5 11.Bc1 f5 12.Nc3 Nc6 13.a3 Ne7?? (13...Bf6 14.Bb2+–) 14.e4 (better is 14.Ng5 Qe8 15.Bh5+–) 14...f4?? (better is 14...Bc1 15.Rc1 a6+–) 15.Ng5 (15.Ng5 Rf6 16.Bg4+–) 1–0. Fournier,Frederic (1855) – tcsan (1720), Active, 2005.

7.d3 0–0 8.Nbd2 Nc6 9.a3 a5 10.0–0 (better is 10.b5!? Na7 11.0–0=) 10...ab4–/+ 11.ab4 Ra1 12.Qa1 Nb4 13.Rc1 Bf3 14.Nf3 Qd7 15.Bc3 Nc6 16.Qa4 Re8 17.Ra1 d5 (17...e4 18.Nd4 ed3 19.Bd3=) 18.cd5 (18.Ne5 Ne5 19.Be5 dc4 20.Qc4 c5+/–) 18...Nd5 19.Be5?? (better is 19.Ne5 Nc3 20.Nd7 Na4 21.Ra4=) 19...Ne5–+ 20.Ne5 Qa4 21.Ra4 Nc3 (21...Nc3 22.Rc4 Ne2 23.Kf1 b5–+) 0–1. Fournier,Frederic – karmak, Active, 2007.

7.d3 0–0 8.Nbd2 h6 9.a3 Nbd7 10.0–0 Re8 11.e4 a5 12.Qc2 ab4 13.ab4 Ra1 14.Ra1 b5 (14...c5!?+=) 15.cb5+/– d5 16.Ne5 Ne5 17.Be5 Bd6 18.Bd6 Qd6 19.Bf3 (19.Ra7!? Rb8+–) 19...de4+/– 20.Ne4 Ne4 21.de4 Ra8? (better is 21...Qb4!? 22.Qc7 Qb5+=) 22.Ra8+– Ba8 23.g3 Qb4 24.Qc7 Qb5?? (better is 24...Qb1 25.Kg2 Be4+–) 25.Qd8 Kh7 26.Qa8 Qb1 27.Kg2 Qc2 28.Qb7 Qc3 (28...Qc4 29.e5 Qe6 30.Be4 g6 31.h3+–) 29.Qf7 Qa1 (29...Qe5 30.h3+–) 30.Qf5 Kh8 (30...g6 31.Qe6 Qg7+–) 31.e5 Qa7 32.Be4 g6 33.Qg6 Qh7 34.Qh7 1–0. Fournier,Frederic – alberflame, Active, 2009.

7.d3 0–0 8.e4 Nbd7 9.0–0 Nh5 10.a3 Nf4 11.g3 (11.Nc3!?=) 11...Ne2+= 12.Qe2 f5 13.Nbd2 fe4 14.Ne4 Nf6 15.Nf6 Bf6 16.Nd2 Qd7 17.Ne4 Qh3 (17...Be7 18.Rae1+=) 18.f3 (worse is 18.Nf6 Rf6 (18...gf6?! 19.f4=) 19.f4 Rg6–+) 18...d5 (better is 18...Be7!?+=) 19.cd5+= Bd5 20.Nf6 gf6 21.Qg2 (21.f4!?+=) 21...Qf5 22.Qe2 Kf7 23.f4 e4 24.de4 Be4 25.Rfe1 Rae8 26.Qc4 Bd5 27.Qd4 (27.Qc7!? Kg8 28.Rad1+/– (28.Qa7 Qc2 29.Re2 Qe2 30.Qg7 Kg7 31.Bf6 Kf6 32.Rd1 Qg2)) 27...Kg6 28.Rad1 Rd8 29.Qd3 Be4 30.Qe4?? (better is 30.Qd8 Rd8 31.Rd8+=) 30...Qe4–+ 31.Re4 Rd1 32.Kf2 Rd2 33.Re2 Re2 34.Ke2 Re8 35.Kf2 f5 36.Be5 c6 37.a4 Rd8 38.a5 (38.Ke3 Rd1–+) 38...b5 (38...ba5!? 39.ba5 Rd2 40.Kg1–+) 39.h4 (39.Ke3 Rd1–+) 39...h5 (39...Kh5 40.Bc3–+) 40.Ke3 Rd1 41.Bd4 Rb1 42.Bc5 Rb3 43.Kf2 Kf6 44.Kg2 (better is 44.a6–+) 44...Ke6 45.Kf2 Kd5 46.Kg2 (46.a6 Ra3 47.Ba7 Ra6–+) 46...Ke4 (46...Kc4 47.Ba7 Rb4 48.Bb6 Rb2 49.Kf3–+) 47.Ba7 (47.Kh3–+) 47...Rb4 48.Bc5 Ra4 49.Bb6 (49.Be7 b4 50.Kf2 b3–+) 49...b4 50.Bc5 (50.Bd8–+) 50...b3 51.Bd6 Ra5 (51...Ra2 52.Kg1 b2 53.Kg2 b1Q 54.Kh3 Qf1) 52.Be5–+ Rb5 (52...Re5 53.Kg1 b2 54.Kg2 b1Q 55.fe5 Qc2 56.Kh3 Kf3 57.e6 Qg2) 53.Bb2 c5 54.Kf2 c4 55.Ke2 Rd5 56.Bc3 Rd3 57.Bb2 c3 58.Bc3 (58.Ke1 cb2 59.Ke2 Rc3 60.Kf1 Rc2 61.g4 b1Q) 58...Rc3 59.Kd2 Rc5 60.Ke2 (60.Ke1 b2 61.Kd2 b1Q 62.g4 Rc2) 60...b2 61.Kf2 (61.Kd2 b1Q 62.g4 Rc2) 61...b1Q (61...Rc2 62.Ke1 b1Q) 62.Kg2 Rc3 (62...Rc2 63.Kh3 Qf1) 63.Kf2 (63.Kh2 Rc2 64.Kh3 Qf1) 63...Qc2 (63...Rc2) 64.Kg1 Rg3 (64...Qd2 65.g4 Rc1) 65.Kf1 Qd1 0–1. Fournier,Frederic (1790) – paul0560, Active, 2006.

7.d3 Nbd7 8.e4 0–0 9.0–0 Rc8 10.Nbd2 a6 11.a4 c5 12.b5 a5 13.Re1 Ne8 14.Nf1 f5 15.ef5 Rf5 16.Ng3 Rf8 17.Ne4 Ndf6 18.Nf6 Nf6 19.Qd2 Rc7 20.Ra2 Bc8 21.Bc3 Bg4 22.Qd1 Be6 23.Nd2 Ne8 24.Ne4 Nf6 25.Nf6 Bf6 (worse is 25...gf6 26.f4+/–) 26.Bf3 Rcf7 27.Rf1 Qe7 28.Re2 Bg5 29.Bd2? (29.Be4 Qf6=) 29...Kh8?? (better is 29...Rf3 30.gf3 Bh3–+) 30.Bg5 Qg5 (30...Rf3?? 31.Be7 R8f7 32.Bd6+–) 31.Qd2 Qg6 32.Be4 Qg4 33.Bf3?? (better is 33.h3 Qh4 34.Qe3=) 33...Rf3–+ 34.Kh1 (34.Re3 Qg6 35.Kh1 Re3 36.Qe3 Bf5–+) 34...R3f6 (better is 34...Qf5 35.Rc1 Rf2–+) 35.g3 (35.Re4 Qh5 36.Qe2–+) 35...Qf3 36.Kg1 Bc8 (36...Bh3 37.Re5 Qg2) 37.Qe3 (37.Re3 Qh5–+) 37...Bb7 (37...Qe3 38.Re3 (38.fe3?? Rf1 39.Kg2 Rd1–+) 38...Bh3 39.Re2 Bf1 40.Kf1–+) 38.Qf3 Rf3 39.Re3 Re3 (39...Bc8!? 40.h4–+) 40.fe3 Rf1 41.Kf1 g5 42.e4 h5 43.Kf2 Kg7 44.Ke3 Kf6 45.Kf2 Bc8 46.Ke3 h4 47.gh4 (47.Kf3–+) 47...gh4 48.Kf3 Kg5 49.Kf2 Kg4 50.Kg2 Kg5 51.Kf2 Bg4 (51...Kf4!? 52.Ke2–+) 52.Ke3 Bd1 0–1. Fournier,Frederic (1615) – iks (1730), Active, 2007.

7.0–0 Qd7

8.Nc3 a5 9.b5 0–0 (9...Qf5 10.d3 0–0 11.e4 Qd7 12.Nd2 Qd8+=; 9...e4 10.Nd4 c5 11.bc6 Nc6 12.Nc6 Bc6+=; 9...Qd8 10.d4 Nbd7 11.Qc2 0–0 12.de5 de5+=) 10.d4 Qf5 11.d5 Bc8 12.Bd3 Qh5+=.

8.Nc3 Na6 9.b5 Nb8 10.d4 ed4 11.Nd4 0–0 12.Bf3 c6+=.

8.Nc3 Nc6 9.b5+= (White gets the initiative) 9...Nd8 (9...Na5 10.d4 e4 11.Nd2 a6 12.ba6 Ra6+/–; 9...Nb8 10.d4 e4 11.Nd2 a6 12.ba6 Na6+/–) 10.d4 e4 (10...ed4 11.ed4 a6 12.a4 (12.d5+= ab5+=/4) 12...0–0+=) 11.Nd2+/– h5 (better is 11...a6!? A) 12.ba6 Ra6+= (12...Ba6+/–); B) 12.d5 Qf5+/–) 12.d5+– g5 (12...a6 13.ba6 Ba6 14.Nce4+–) 13.Nce4 g4 (13...Rh6+–) 14.Nf6 Bf6 15.Bf6 Rg8 16.Ne4 Qf5 17.Bd3 h4 (17...Qc8+–) 18.Nd6! (18.Nd6 cd6 19.Bf5+–) 1–0. pierre – feri, internet, 2008.

8.Nc3 e4 A) 9.Ne1 d5 10.a3 0–0 11.f3 c6 12.Rc1 a5=; B) 9.Nd4 0–0 (9...c5 10.Nc2 0–0 11.d3 d5 12.bc5 ed3=) 10.b5 c5 11.bc6 Nc6 12.Nc6 Bc6=; C) 9.Ng5= h6 (9...a5 10.b5 Qf5 11.Nh3 0–0 12.f3 ef3+=; 9...Qf5 10.Nh3 0–0 11.f3 ef3 12.Bf3 Bf3+=) 10.Nh3 d5 11.Nd5 Nd5 12.cd5 0–0+=.

8.d4 ed4 9.ed4 (9.Nd4 c5 10.Nc2 0–0 11.Nc3 d5 12.bc5 bc5 13.cd5=) A) 9...0–0 10.d5 (10.Nc3 d5 11.Ne5 Qe8 12.c5 bc5 13.Nb5+=; 10.Re1 d5 11.Ne5 Qd8 12.a3 Nbd7 13.Nc3+=; 10.a3 Re8 11.Re1 a5 12.b5 d5 13.Ne5+=) 10...c6 11.Nc3 cd5 12.cd5 a5 13.b5+=; B) 9...c6 10.Re1 (10.Nc3 0–0 11.Re1 Na6 12.a3 Rfe8 13.Bd3+=; 10.Bd3 0–0 11.Re1 d5 12.Ne5 Qd8 13.Bc3+=; 10.a3 0–0 11.Nc3 Re8 12.Re1 a6 13.Qd3+=) 10...0–0 11.Nc3 d5 12.a3 a5 13.Ne5+=.

8.d4 e4 9.Nfd2 0–0 A) 10.Nc3 d5 11.a3 c6 12.Rc1 (12.f3 ef3 13.Bf3=) 12...Rc8 (12...a5+= 13.b5+=) 13.f3+=; B) 10.d5 c6 11.Nc3 cd5 12.cd5 Nd5 13.Nd5=; C) 10.a3 d5 11.Nc3 c6 12.Rc1 a5 13.b5+=.

8.d4 e4 9.Nfd2 d5 10.a3 0–0 (10...a5 11.b5 c6 12.bc6 Bc6 13.Nc3+=) 11.Nc3 c6 (11...a5 12.b5 c6 13.bc6+=) 12.Rc1 a5+= (12...Qe6 13.cd5+=) 13.b5+=.

7.0–0 Nbd7

8.d3 0–0 9.Nc3 Ne8 10.Nd5 f5 11.Ne7 Qe7 12.a4 g5? (12...a5!? 13.ba5 Ra5=) 13.Nd2 Ng7 14.f4 (14.a5!?+/–) 14...gf4= 15.ef4 ef4 16.Rf4 (16.a5 Rae8 17.Rf2 Ne6+=) 16...Qg5 (better is 16...Bg2!? 17.Qe1 Bc6=) 17.Rf2+/– Rae8 18.Nf3 Qe3 19.Bd4 (19.Bc1 Qe7+/–) 19...Qe7 20.Qd2 f4 21.Raf1 Ne5 22.b5?? (better is 22.Bd1+=) 22...Ng4–/+ 23.h3 Nf2 24.Rf2 Ne6 25.Bc3 Nc5 26.Qc2 Qe3 27.Bd4 Qe6 28.Bd1 Qg6 29.Be2 Rf7 30.Bf1? (better is 30.Qd1–+) 30...Ne6 31.Bb2 Ng5 (better is 31...Bf3 32.Rf3 Ng5–+) 32.Ng5 Qg5 33.Qc3 Re5 34.Qd2 Re3 35.Qc3 Kf8 36.Bc1 Re5 ˝–˝. mpenga (2540) – rollerblade (2575), net–chess.com, 2015. (=1.Nf3 b6 2.c4 Bb7 3.e3 Nf6 4.b4 d6 5.Bb2 e5 6.Be2 Be7)

8.d3 0–0 9.Nbd2 c5 10.b5 a5 11.a4 h6 12.Nh4 Qc7 (12...g6 13.Bf3 d5 14.cd5 Nd5 15.Qb3+=) 13.Nf5+= Rae8 (13...Rfe8 14.Qe1+=) 14.Ne7 (14.Qe1!?+=) 14...Re7= 15.Bf3 e4 (15...d5 16.cd5 Nd5 17.Qe2=) 16.de4 Ne5 (16...Rfe8 17.g3+=) 17.Be2 (17.Qc2 Nf3 18.gf3 Nh5+/–) 17...Ne4 18.Ne4 Be4 19.f4 Nd7 20.Bf3 f5 (20...Rfe8 21.Qd2+=) 21.Be4+= fe4? (better is 21...Re4 22.Qd5 Rf7+=) 22.Qd5+– Kh7 23.Rad1 Nf6 24.Qd6 Qd6 (24...Rff7 25.h3+–) 25.Rd6 Rb7 26.h3 Nh5 27.Kh2 g5? (27...Nf6+–) 28.g4 Ng7 (28...Nf4 29.ef4 gf4 30.Bc1+–) 29.f5 (better is 29.Rh6! Kg8 30.f5 Rff7+–) 29...Ne8 (29...h5 30.Be5+–) 30.Re6 Rd7 31.Rf2 Nd6 (31...h5 32.Be5+–) 32.Rd2 Rfd8 33.Bf6 Nf7 (33...Nc4 34.Rd7 Rd7 35.Re8+–) 34.Rd7 Rd7 35.Re4 (better is 35.Rb6!? h5+–) 35...Rd2 (35...Nd6 36.Re5 Rf7+–) 36.Kg3 Nd6 37.Re7 (37.Re6!? Kg8 38.Bd8 Nc4 39.Bb6 Ra2 40.Bc5 Nd2+–) 37...Kg8 38.Re6 (better is 38.Rg7!? Kf8 39.Rg6 Rd3 40.Bg7 Kf7 41.Bh6 Re3 42.Kf2 Rd3+–) 38...Nc4 39.Kf3 Rh2 (better is 39...Rd7+–) 40.Kg3 (better is 40.Ke4!? Rd2 41.Bc3 Rd1 42.Rh6 Kf8+–) 40...Ra2?? (40...Rd2 41.h4 gh4 42.Kh4 Rh2 43.Kg3 Ra2+/–) 41.Bd8+– Ra4 42.Bb6 (better is 42.Rh6 Ra1 43.Bb6 Nb6 44.Rb6+–) 42...Rb4? (better is 42...Nb6 43.Rb6 Rb4+/–) 43.Bc5+– (43.Rh6?! Rb5 44.Bd8 Rb3+–) 43...Rb5 44.Bd4 a4 (44...Rb3 45.Kf3+–) 45.Ra6 (45.Rh6 a3 46.Rg6 Kf7 47.Rg7 Kf8+–) 45...a3? (45...Ra5 46.Rh6 a3 47.h4 gh4 48.Rh4+–) 46.Rh6 (46.Ra4!? Na5+–) 46...Rb3? (46...a2 47.Kf2+–) 47.Rg6 (47.Rh8 Kf7 48.Rh7 Ke8+–) 47...Kf7? (47...Kf8 48.Rf6 Kg8 49.Kf2+–) 48.Rf6 (better is 48.Rg7 Ke8 49.f6+–) 48...Kg8+/– 49.Rc6 (better is 49.Kf2 a2 50.Rc6+/–) 49...Nd2?? (49...Ne3 50.Kf2 Nd5 51.Rg6 Kf7 52.Rg5 Nf6+/–) 50.Rc2+– Ne4 51.Kf3 Nd6 52.Rc3 Rc3 53.Bc3 Nb5 (53...a2 54.e4+–) 54.Ba1 Kf7 (54...Nd6 55.e4 Nb7 56.e5+–) 55.Ke2 (55.e4 Na7+–) 55...a2 (55...Nc7 56.e4+–) 56.Kd2 (56.e4 Ke7+–) 56...Ke7 (56...Nd6 57.Kd3+–) 57.Kc2 (57.e4!? Nd6 58.Kd3 Kf7+–) 57...Nd6 58.Kb3 Ne4 59.Ka2 Nf2 60.e4! Ne4 61.Bd4 Nd2 (61...Kd6 62.Kb3 Kd5 63.Be3+–) 62.Kb2 Nf3 (62...Nc4 63.Kb3 Na5 64.Kb4 Nc6 65.Kc5+–) 63.Bb6 (63.Kc3 Kd6+–) 63...Kf6 (63...Ne5 64.Kc3+–) 64.Kc3 Ke5 65.Kd3 Kf6 (65...Kd6+–) 66.Ke2 Ng1 (66...Nh4+–) 67.Bg1 (67.Bg1 Ke5 68.Kd3+–) 1–0. Pfueller,Volker – Stiemerling,Karl_Heinz, 6th Berlin–ch Seniors, 2010.

8.d4 e4 9.Nfd2 c6 A) 10.Qb3 d5 (10...0–0 11.f3 ef3 12.Bf3 d5 13.Nc3 dc4) 11.f3 ef3 12.Bf3 a5 13.ba5 Ra5; B) 10.Qa4 d5 (10...0–0 11.Nc3 d5 12.Rfc1 a6 13.cd5 cd5; 10...a6 11.Nc3 d5 12.cd5 cd5 13.f3 ef3; 10...a5 11.b5 Rc8 12.Nc3 d5 13.Rfc1 0–0) 11.Nc3 dc4 12.a3 b5 13.Qc2 a5; C) 10.f3 ef3 (10...a5 11.fe4 ab4 12.e5 Ng8 13.Ne4 de5) 11.Bf3 d5 12.a3 a5 13.b5 cb5; D) 10.Nc3 d5 11.Qb3 0–0 12.Rac1 Bd6 13.b5 dc4.

8.d4 e4 9.Nfd2 d5 10.a3 (10.Qb3 a5 11.ba5 Ra5 12.cd5 Bd5 13.Qc2 Bd6) 10...a5 (10...c6 11.Nc3 a5 12.b5 cb5 13.Nb5 0–0; 10...dc4 11.Bc4 a5 12.b5 c5 13.Nc3 Qc7) 11.b5 c6 (11...dc4 12.Bc4 (12.Nc3 c5 13.dc5 Nc5) 12...Rc8 (12...c5 13.Nc3 Qc7) 13.Nc3+= 0–0) 12.bc6 Bc6 13.cd5 (13.Nc3 dc4 14.Bc4 Bb7+=) 13...Bd5+/– (13...Nd5+=) 14.Nc3 Kf8 1–0. Bonetti,Shane – guest604, ICC, 2002.

8.d4 e4 9.Nh4 A) 9...d5 A1) 10.Qa4 g6 11.c5 c6 12.b5 cb5 13.Bb5 a6; A2) 10.b5 a6 (10...0–0 11.Nf5 Re8 12.Nc3 c6 13.cd5 cd5; 10...Bf8 11.Nc3 a6 12.ba6 Ra6 13.Qc2 Ra5) 11.Nf5 ab5 12.cb5 Bf8 13.Nc3 g6; A3) 10.Ba3 dc4 11.Nf5 b5 12.Ng7 Kf8 13.Nf5 a5; A4) 10.Nf5 0–0 11.b5 Re8 12.Nc3 c6 13.cd5 cd5; B) 9...c6 B1) 10.Nc3 0–0 (10...d5 11.Nf5 0–0 12.a3 a5 13.Qb3 Ba6; 10...a6 11.Nf5 0–0 12.d5 cd5 13.cd5 a5; 10...Rc8 11.Nf5 0–0 12.f3 c5 13.dc5 dc5) 11.Nf5 d5 12.a3 a6 13.cd5 cd5; B2) 10.Nf5 0–0 11.Nc3 d5 12.a3 a6 13.cd5 cd5; C) 9...c5 C1) 10.Qb3 0–0 (10...Rc8 11.Nf5 0–0 12.bc5 dc5 13.d5 g6; 10...a5 11.Nf5 0–0 12.dc5 dc5 13.ba5 Ra5; 10...cb4 11.Nf5 Bf8 12.Qb4 d5 13.Qa4 g6) 11.Nf5 a5 12.dc5 dc5 13.ba5 Ra5; C2) 10.a3 0–0 (10...d5 11.Nf5 0–0 12.Qb3 a5 13.dc5 bc5; 10...Rc8 11.Nf5 0–0 12.Nc3 a5 13.bc5 bc5; 10...cb4 11.ab4 0–0 12.Nf5 a6 13.Nd2 d5) 11.Nf5 d5 12.Qb3 a5 13.dc5 bc5; C3) 10.bc5 dc5 11.Nf5 0–0 12.d5 Re8 13.Qc2 Bf8; C4) 10.Nf5 0–0 11.Qb3 a5 12.dc5 dc5 13.ba5 Ra5; D) 9...0–0 10.Nf5 d5 (10...c5 11.Qb3 a5 12.dc5 dc5 13.ba5 Ra5; 10...a5 11.b5 Rc8 12.d5 Re8 13.Nd2 Nc5; 10...c6 11.Nc3 d5 12.a3 a5 13.Qb3 Ba6) 11.b5 Re8 12.Nc3 c6 13.cd5 cd5.

5.Nf3 c5

6.b5 Be7 7.Nc3 =.

6.b5 Bg4 7.Be2 Nbd7 (7...e4 8.Nd4 Bc8 9.Nc2+=) 8.0–0 a5 (8...e4 9.Ne1 Be2 10.Qe2+=) 9.a4 (9.d4 cd4 10.ed4 Rc8+=) 9...Be7 10.d3 0–0 11.Nbd2 (11.Nc3+=) 11...d5 (better is 11...Qc7!?=) 12.Ne5+/– Be2 13.Qe2 Ne5 14.Be5 d4 (14...Re8!?+/–) 15.ed4+– cd4 16.Nf3 (16.Qf3 Bb4 17.Bf6 Qf6 18.Qf6 gf6+–) 16...Bd6 (16...Bc5+–) 17.Bd4 (17.Nd4?! Re8 18.Nc6 Be5 19.Nd8 Bh2 20.Kh2 Re2+–) 17...Bc5 18.Bc5 Re8?? (18...bc5 19.d4! cd4+–) 19.Be3 Qd6 (19...Rc8 20.Rfe1+–) 20.d4 Ng4 21.Rad1 (21.Rae1 Ne3 22.fe3 Rac8+–) 21...Ne3 (21...Qa3 22.Qc2 Ne3 23.fe3 Qe3 24.Qf2+–) 22.fe3 h6 (22...Qa3 23.Ne5 f6 24.Nd7+–) 23.Ne5 Kh7 (23...f6 24.Nc6+–) 24.Rf7 Rf8 (24...Re7 25.Re7 Qe7 26.Qc2 Kg8 27.Qg6+–) 25.Rdf1 (25.Qf3 Rf7 26.Nf7 Qf8+–) 25...Rf7 26.Nf7 Qg6 (26...Qe7 27.Qd3 g6 28.Ne5+–) 27.Ne5 Qe6 (27...Qg5 28.Qf3 Re8 29.Qe4 Kg8 30.Rf3+–) 28.Qd3 (28.Rf7 Rc8+–) 28...Kg8 29.Qe4 Rf8 (29...Ra7 30.Qc6 Re7 31.Rf7 Qc6 32.bc6+– (32.Re7?! Qe4+=)) 30.Rf8 Kf8 31.Ng6 Kf7 32.Qe6 Ke6 33.Nf4 Kf6 34.Nd5 Kf5 35.h3 (35.c5 Ke6 36.cb6 Kd5+–) 35...Ke4 36.Kf2 (better is 36.Nb6 Kf5+–) 36...Kd3 37.Nb6 1–0. Goldmund,Heike – Leurette,Marc_Antoine, FICGS, 2015.

6.b5 Bg4 7.h3 Bd7 8.d4 cd4 9.ed4 =.

6.b5 Bg4 7.h3 Bf3 8.Qf3+= Nbd7 9.Nc3 Be7 (9...a6 10.Qb7+=) 10.g4 0–0 (10...a6 11.Bg2 Ra7 12.g5+/–) 11.Bg2+/– h6? (11...Rc8!?+/–) 12.h4 (12.Qa8 Qa8 13.Ba8 Ra8+–) 12...Nh7 (12...d5 13.cd5 e4 14.Ne4 Ne4 15.Qe4 Bh4+–) 13.g5 Bg5 (13...Rc8 14.gh6 gh6 15.Qh5+–) 14.hg5 (14.Qa8 Qa8 15.Ba8 Ra8 16.hg5 Ng5+–) 14...Ng5 (14...Qg5 15.Ne4 Qg6 16.Qg3 Qg3 17.fg3+–) 15.Qg3 (15.Qa8 Qa8 16.Ba8 Ra8+–) 15...Rb8 (15...Rc8 16.f4 Ne6 17.Ne4 ef4 18.ef4+–) 16.Nd5 (16.0–0–0 Kh7+–) 16...Nf6 (16...f6 17.d3+–) 17.Nf6 (better is 17.f4 Nd5 18.fg5 Ne3 19.de3 Qg5 20.Qg5 hg5+–) 17...Qf6 18.0–0–0 Ne6 19.Be4 (19.Rdg1 Qg6 20.Qg6 fg6+–) 19...Qg5 20.Qf3 (20.Qh2 Qe7+–) 20...f5 (20...Qe7 21.Rdg1 Ng5 22.Qg2+–) 21.Bd5 Qe7 22.Rdg1 (22.Qg3 Kh7 23.f4 ef4+–) 22...Kh7 (22...Kh8 23.Rg6 Rf6 24.Qg3+–) 23.Qh5 (better is 23.Qg3!? Rf6+–) 23...Rf6 24.f4 Nc7 25.fe5 (25.Qg5 Nd5 26.cd5 Rb7+–) 25...de5 26.e4 (better is 26.Qg5 Nd5 27.cd5+–) 26...f4? (26...Rd8+–) 27.Be5 Nd5 28.Bb8 (worse is 28.ed5 Rbf8+–) 28...Nb4 (28...Qe4 29.Qd5 Qd5 30.cd5+–) 29.e5 Qe6 (29...Re6 30.Qf5 Kg8 31.a3+–) 30.Qe2 (30.ef6 Qc4 31.Kd1 Qc2 32.Ke1 Qe4 33.Kf1 Qd3 34.Qe2 g6 35.Qd3 Nd3 36.Rh6 Kh6 37.Bd6 Nb4 38.f7 g5 39.f8Q Kg6 40.Rh1 g4 41.Rh6 Kg5 42.Qf4) 30...Qf5 (30...Rf8 31.Bd6 Qf5 32.d4+–) 31.d3 (better is 31.Rg7 Kg7 32.ef6 Kf6+–) 31...Nd3 (31...Rf7 32.Rd1 f3+–) 32.Kd2 Nb4 (32...Rf8 33.Bd6 Rg8 34.Qd3 Qd3 35.Kd3 g5+–) 33.ef6 Qc2 34.Ke1 Nd3 (34...Qc3 35.Kf1 Qa1 36.Qe1 Qe1 37.Ke1 g6+–) 35.Qd3! 1–0. Buczinski,Henryk – Lelek,Antoni, Katowice, 1966.

6.b5 Bg4 7.h3 Bf3 8.Qf3 Nbd7 9.Nc3 Be7 10.g4 g6 (10...a6!?+=) 11.Bg2+/– Rb8 12.0–0 (12.d3 h6+/–) 12...0–0 (12...g5 13.Qf5 h5 14.f4 (14.Qg5?! hg4 15.hg4 Rg8=) 14...gf4 15.g5+–) 13.Qe2 Rc8 14.f4 ef4 15.ef4 Re8 16.d3 (16.g5 Nh5 17.Qd3 Bf8+/–) 16...Bf8 17.Qd2 Nb8 (17...Bg7 18.Rae1+/–) 18.a4 (18.f5 Bg7+–) 18...a5 (18...Bg7 19.Rae1+/–) 19.Rae1 (19.ba6 Nc6+–) 19...Rc7 (19...Bg7!?+/–) 20.Re8 Qe8 (20...Ne8 21.Nd5 Rc8 22.Re1+–) 21.Re1 (better is 21.g5!? Nfd7+–) 21...Re7+/– 22.Re7 Qe7 23.Nd5 (better is 23.f5!?+/–) 23...Nd5+= 24.Bd5 Bg7 25.Bg7 Kg7 26.Kg2 Nd7 27.Kg3 Qf6 28.Qd1 Qd4 29.g5 Qe3 30.Kg4?? (better is 30.Qf3 Qg1 31.Qg2=) 30...f5 0–1. Trkn – Pope Pompous Pilot, itsyourturn.com, 2000.

6.bc5 bc5 7.d4 e4 =.

5.Nf3 e4

6.Nd4 c5 7.Nc2 a6 8.Bf6 (8.d3 Bb7=) 8...Qf6 9.Nc3 Nc6 (9...Bb7 10.d4=) 10.Nd5 (better is 10.Ne4 Qg6 11.Nc3+=) 10...Qf5?? (better is 10...Qd8+=) 11.Nc7+– Kd8 12.Na8 b5 (12...Ne5 13.Rb1 Qg6 14.Nb6 Nd3 15.Bd3 ed3 A) 16.Nc8?? dc2 17.0–0 cd1Q (17...cb1B?! 18.Qb1 Kc8 19.Qb3=; worse is 17...cb1N 18.Nb6+/–) 18.Rfd1 Kc8–+; B) 16.Nd4 cd4 17.Qf3 (17.Nc8?! Qg2 18.Rf1 Kc8+–) 17...de3 18.de3+–) 13.cb5 ab5 14.Nb6 Ba6 (14...Bb7 15.Bb5 Ne5 16.bc5 dc5 17.0–0+–) 15.d4 Be7 (15...Nb4 16.Nb4 cb4 17.a4 ba3 18.Ra3+–) 16.dc5 Bh4 (16...Qe6 17.Nd5 dc5+–) 17.Qd6 Ke8 18.Qc6 Kf8 19.Nd7 (better is 19.Qa8 Bc8 20.Qc8 Qc8 21.Nc8 g6+–) 19...Ke7 20.0–0–0 Qe6 21.Rd6 Qa2 22.Qe4 Kd8 23.Nb6 Kc7 24.Rd7 Kb8 25.Qe5 1–0. Janek – quguqu, internet, 2017.

6.Nd4 c5 7.Nc2 Bb7 8.Nc3 (8.d3 ed3 9.Qd3 Be7=) 8...a6 (8...Nbd7 9.d3=) 9.Be2 Be7 (9...Nbd7 10.a3=) 10.0–0 (10.f3 0–0=) 10...0–0 11.f4 (11.f3 d5 12.bc5 dc4 13.cb6 ef3 14.gf3 Nbd7 15.Bc4 Nb6+=) 11...ef3 (11...d5 12.bc5 Bc5 13.cd5 Nd5 14.Qe1=) 12.Bf3+= Bf3 13.Qf3 (worse is 13.gf3 Nc6+=) 13...Nbd7 14.d4 (14.d3 Ne5 15.Qe2 Re8+=) 14...Qc7 (14...Rc8 15.Nd5=) 15.Rae1 (15.Rac1 Rae8=) 15...cb4 16.Nb4 Qc4 17.Nc6 Rae8 18.a3? (better is 18.Rc1!? Bd8 19.Ba3=) 18...d5–/+ 19.Ne5 Ne5 20.de5 Ne4 21.Ne4 de4 22.Qe2 (22.Qg4 b5–/+) 22...Qd3 (22...Qe2!? 23.Re2 Rc8 24.Rd1–+) 23.Qd3–/+ ed3 24.Rd1 Rd8 25.Bd4 b5 (25...Ba3 26.Bb6 Rd7 27.Bd4–/+) 26.Rd3+= Rfe8 (26...Rc8 27.Kf2+=) 27.Rfd1 (27.Kf2 a5+=) 27...Rc8 (27...b4 28.ab4 Bb4 29.Rb3–/+) 28.Bb6 (28.Kf2 Rc2 29.Kf3 Rec8+=) 28...h6 29.R1d2 (29.Rf1 Rc6 30.Bd4 Rc2–/+) 29...Rc4 (29...Rc1 30.Kf2–/+) 30.Kf2 (30.Bd4 a5–/+) 30...Rec8 (30...Ra4 31.Ra2–/+) 31.Bd4 Rc2 (31...b4 32.ab4 Bb4 33.Ra2 Rc2 34.Rc2 Rc2 35.Kf3–/+) 32.Bb2 (32.Ke2 a5–/+) 32...Rd2 33.Rd2 Rd8 (33...b4 34.a4–/+) 34.Rd8+= Bd8 35.Ke2 (35.Kf3 Kf8+=) 35...Kf8–/+ 36.Kd3 Ke7 37.a4 (37.Kd4 Bb6 38.Kd5 Be3–/+) 37...b4 (37...ba4 38.Ba3 Ke6 39.Bf8–+) 38.Kc4 a5 39.Kd5 Bb6 (39...h5–/+) 40.Kc6 (better is 40.e4–/+) 40...Bd8?? (40...Be3 41.Kb5–+) 41.e4 (41.Kd5 h5 42.Bd4–/+) 41...Ke6–/+ 42.Kb5 (42.g4!?–/+) 42...Bc7–+ 43.Bc1 Be5 (43...Ke5 44.Bb2 Ke4 45.Bg7–+) 44.Ka5 b3 45.Kb4 (45.Kb5 b2 (45...Bh2?! 46.Kc4=) 46.Bb2 Bb2–+) 45...b2 46.Bb2 Bb2 (46...Bb2 47.Kc4 Be5–+) 0–1. Cerny,Thorsten – Schwerdtfeger,Wolfgang, Germany, 1992.

6.Nd4 c5 7.Nc2 Bg4 8.Be2 Be2 9.Qe2=.

6.Nd4 Bd7 7.d3 d5 8.Nc3 (8.b5!?=) 8...Bb4+= 9.a3 Bc3 10.Bc3 Nc6 (10...c5!? 11.Nc2 Bg4+=) 11.cd5= Nd4 (11...Nd5!? 12.Bb2 ed3 13.Bd3 Nf6=) 12.Bd4+= Bg4 (12...Nd5 13.Bg7 Rg8 A) worse is 14.de4 Ne3 15.Qd3 Nf1–/+ (15...Rg7?! 16.Qe3 Qe7 17.Rc1=); B) 14.Bb2+/–) 13.Qa4+/– Bd7 14.Qb3 0–0 15.Qb2 c5 (15...Bf5!? 16.Bf6 gf6 17.de4 Be4+=) 16.Bf6+/– Qf6 17.Qf6 gf6 18.de4 Rfd8 19.g4! Kf8 (19...Bg4 20.Rg1 Pinning (20.Rg1 Decoy)) 20.h3 a6 21.Kd2 b5 22.Kc3 Rab8 23.Bd3 ˝–˝. Steingraeber,Barbara (2240) – Witt,Monika (1605), remoteschach.de, 2004.

6.Ng1 c6+=.

5.Nf3 Be7

(--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 b6).

6.Be2 0–0 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 b6).

5.Nf3 Bg4

6.Be2 Nc6 7.b5 Ne7 8.d4 +=.

6.Be2 Nc6 7.h3 Bf5 8.d4 e4 9.Nfd2 d5 10.b5 Na5 11.a3 Be7 12.cd5 Nd5 13.Bg4 (13.Nc3 Nc3 14.Bc3 Nb7+=) 13...Bg6= 14.Qc2 Ne3? (better is 14...f5 15.Be2 f4 16.Ne4 fe3=) 15.fe3+– Bh4 16.Ke2 (16.Kd1 0–0+–) 16...0–0? (16...f5 17.Bc3 0–0 18.Bb4+=) 17.Nc3?? (better is 17.g3 Bg3 18.Ne4+–) 17...f5= 18.Raf1 fg4 19.Nce4 (19.Rf8 Kf8 20.hg4 Qg5 21.Rf1 Kg8 22.Nde4 Qg4 23.Kd3 Qd7+=) 19...g3 (19...Qd7 20.a4 gh3 21.gh3 c6+=) 20.Qc3 (better is 20.Rf8 Qf8 21.Rc1+=) 20...Qd5–/+ 21.Qc7?? (better is 21.Qd3–/+) 21...Qb5 22.Kd1 Qb2 23.Nc4 (23.Qc3 Bh5 24.Rf3–+) 23...Bh5 24.Rf3 Qb1 (better is 24...Qg2 25.Ned2 Bf3 26.Kc2–+) 25.Kd2 Nb3 (better is 25...Qh1 26.Rf8 Rf8 27.Na5 Qd1 28.Kc3 Qc1 29.Kd3 Qc7 30.Nb3–+) 26.Kc3 Qe4 (better is 26...Qh1 27.Rf8 Rf8 28.Kb3 Qb1 29.Kc3 Qe4 30.Qe5–+) 27.Rf8 Rf8 28.Kb3 (28.Qe5 Nc5! 29.Qe4 Ne4 30.Kb4 Be7 31.Kb5 Be2–+) 28...Kh8 (better is 28...Qd3 29.Kb4 a5 30.Kb5–+) 29.Ne5 (29.Rc1 b5 30.Ne5 Qe3 31.Qc3 Qf2–+) 29...Qe3 30.Kb4 (30.Qc3 Qf2–+) 30...a5 (better is 30...Qd4 31.Kb3–+) 31.Kb5 Qb3 32.Ka6 Bd8 (32...Qd5!? 33.Qc6 Be2 34.Ka7 Qd4 35.Nd7–+) 33.Qc6 (33.Qd6 Re8 34.Re1 Bf6–+) 33...Be8 (33...Be8 34.Qd6 Bb5 35.Ka7 Re8–+) 0–1. Dopper,Johan – Bom,Jan, 1995.

6.Be2 e4!? 7.Nd4 Be2 8.Ne2 Nbd7 =.

6.Be2 e4 7.Ng5 Be2 8.Qe2 =.

6.Be2 Be7 7.0–0 c5 8.b5 Nbd7 (8...0–0 9.d4 cd4 10.Nd4 Be2 11.Ne2=) 9.d4+= Qc7 10.d5 Ne4 11.Nc3 Ndf6 12.Nd2 Bf5 (12...Nc3 13.Bc3 Bd7 14.f4+=) 13.Bf3 (13.Nde4!? Ne4 14.f4+/–) 13...Ng5 14.e4 Bd7 (14...Bg6 15.Rb1+=) 15.a4 (15.Be2 h6+=) 15...h5 (15...Nf3 16.Qf3 0–0=) 16.Ne2 (better is 16.Be2!?+/–) 16...Nf3+= 17.Nf3 Ne4 18.Ng3 (18.Nd2 Nd2 19.Qd2 a6+=) 18...f5 (better is 18...Ng3!? 19.fg3 a6–/+) 19.Ne4= fe4 20.Nd2 Bf5 21.Qe2 Bg5 (21...Bg6 22.Ne4 0–0 23.Rae1+=) 22.Ne4 Be4 (22...Bf4!?+=) 23.Qe4+/– Qf7 (23...0–0+/–) 24.Bc1 (24.f4 Bf4 25.g3 g5+/–) 24...Qf6? (better is 24...Bc1 25.Rac1 0–0+=) 25.Bg5+– Qg5 26.f4 Qf6 27.fe5 Qe5 28.Qe5 de5 29.Rae1 0–0–0 30.Re5 g6 (30...Rde8 31.Rfe1 Re5 32.Re5+–) 31.Rf7 (31.Re7 Rdf8 32.Ra7 Rf1 33.Kf1 Rf8 34.Ke2 Rf4+–) 31...Rd7 32.Ree7 Rhd8? (32...Re7 33.Re7 Rf8+–) 33.Rd7 Rd7 34.Rd7 Kd7 35.Kf2 Kd6 36.Kf3 Ke5 37.g4 hg4 38.Kg4 Kf6 39.h4 Kf7 40.Kg5 1–0. Trkn – Predrag, itsyourturn.com, 2000.

6.Be2 Be7 (6...Nc6 7.b5 Ne7 8.d4+=) 7.h3 Bf3 8.Bf3 g6?? (8...c6 9.0–0 e4=) 9.Ba8+– Na6 (9...Nbd7 10.Bc6+–) 10.Bf3 (better is 10.Bb7 Nb8+–) 10...Nb4 (10...0–0 11.Qa4 e4 12.Qa6 ef3 13.gf3+–) 11.Qa4 Qd7 (11...c6 12.Qb4 Qc7 13.0–0+–) 12.Qb4 a5 (12...d5 13.Qb3 e4 14.Bg4+–) 13.Qb5 Qb5 14.cb5 0–0 15.Bc6 h5 (15...e4 16.Nc3+–) 16.Nc3 Kg7 17.Nd5 (17.d4 ed4 18.ed4 h4+–) 17...Nd5 18.Bd5 Bf6 (18...h4 19.Rc1 Rc8 20.Bb7+–) 19.0–0 (19.Rc1 Rc8+–) 19...h4 (19...a4 20.Rfc1 Rc8 21.Rc4+–) 20.Rad1 (20.Rfc1 Rc8+–) 20...g5 (20...a4 21.d4+–) 21.d4 ed4 22.Bd4 Bd4 23.Rd4 f6 (23...Re8 24.Rc1 Re7 25.Rdc4+–) 24.Rc1 Rc8 25.Rdc4 (25.Be6 Rd8+–) 25...Re8 (25...f5 26.Be6 Re8 27.Bf5+–) 26.a4 (26.Rc7 Kh6+–) 26...Re5 (26...f5 27.Rc7 Kf6 28.Rb7+–) 27.e4 (27.Rc7!? Kg6 28.e4 f5+–) 27...f5 28.f3 Kg6 29.Rc7 g4 (29...Kh5 30.R1c6 g4 31.hg4 fg4 32.Rb6 gf3 33.gf3+–) 30.hg4 fg4 (30...fe4 31.fe4 Kg5 32.R7c6+–) 31.R7c6 (31.f4 Rd5 32.ed5 h3+–) 31...Kg5 (31...gf3 32.Rb6 Rg5 33.Rd6 Kh5 34.Bf7 Kg4 35.b6+–) 32.Rf1 (32.Rf1 Kf4 33.Rb6+–) 1–0. Fuchs,Klaus Dieter – Geisenhof,H, Darm Heinerfestpokal op, 1995.

6.Be2 g6 7.0–0+= Bg7 8.d4 Bf3 (8...e4 9.Nfd2 Be2 10.Qe2+/–) 9.Bf3 (worse is 9.gf3 ed4 10.Qd4 0–0=) 9...e4 10.Be2 d5 (10...c5 11.a3+=) 11.Qa4 (11.cd5 Nd5 12.Qb3 c6+/–) 11...Qd7 12.b5 a6 (12...c6 13.bc6 Qc6 14.Qb3+/–) 13.Ba3 (13.Nc3 dc4 14.Bc4 0–0+/–) 13...c6 14.bc6 Qc6 (14...Nc6 15.Nd2+/–) 15.Qb3 Nbd7 (15...Bf8!?+/–) 16.Nc3+– Bf8 (16...Qc7 17.Rfc1+–) 17.cd5 Nd5 (17...Qc7 18.Rac1 Qb7 19.d6+–) 18.Nd5 Qd5?? (18...Ba3 19.f3 b5+–) 19.Qd5 (19.Qd5 Ra7 20.Qe4 Kd8 21.Bf8 Rf8 22.Rfc1+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

6.Be2 h6 7.Nc3 (7.0–0 e4 8.Nd4 Be2 9.Ne2 d5+=) 7...Be6 (7...e4 8.Nd4 Be2 9.Qe2=) 8.d4 (8.0–0 c6+=) 8...e4 9.Nd2 d5 (9...c6 10.0–0+=) 10.0–0 c6 11.Qa4 Qd7 (11...dc4 12.Nce4 (worse is 12.Nc4 b5 13.Nb5 cb5 14.Qb5 Qd7–/+; 12.Nde4?! Ne4 13.Ne4 b5=) 12...b5 13.Nf6 gf6 14.Qc2=) 12.cd5 (12.a3 dc4 13.Qc2 a5 14.Nc4 Bc4 15.Bc4 b5+/–) 12...Bd5 (12...Nd5 13.Nde4 Nb4 14.Ba3+=) 13.Nd5+/– Nd5 (13...Qd5 14.b5 a6 15.bc6 (15.ba6?! b5 16.Qb3 Qb3 17.ab3 Ra6+=) 15...Qc6 16.Qb3+/–) 14.b5 Be7 (better is 14...a6!? 15.bc6 Nc6+–) 15.Rac1+– (worse is 15.Ne4 0–0+–) 15...c5 (15...Qe6 16.bc6 Kd8 17.Bc4+–) 16.dc5 Bc5 (16...bc5 17.Ne4 Nb6+–) 17.Qe4 (worse is 17.Bg7 Rg8 18.Qe4 Qe6+–) 17...Be7 (17...Kf8 18.Bg4 Qd8+–) 18.Bg4 Qb7 (18...Qd8 19.Bg7 Rg8+–) 19.Bc8 Qc7 20.Rc7 Nc7 21.Rc1 Ne6 22.Be6 fe6 23.Qe6 Nd7 24.Rc7 Rd8 (24...Kf8 25.Ba3 Ba3 26.Rd7 Be7 27.Qe7 Kg8 28.Qg7) 25.Qg6 Kf8 26.Bg7 1–0. Janek – Silvmoon, internet, 2017.

5.Nf3 g6

6.d4 e4 7.Nfd2 d5=.

6.d4 e4 7.Nfd2 Bg7 8.Nc3 Bf5 (8...Qe7 9.Be2+=) 9.Be2+/– 0–0 (9...Qd7 10.f3+/–) 10.g4 Be6 11.d5 Bd5 (better is 11...Bd7!?+/–) 12.cd5+– Nd5 13.Nde4 (13.Nd5 Bb2 14.Rb1 Bg7+–) 13...Nb4 14.Qb3 N4c6 (14...a5 15.a3 N4c6 16.g5+–) 15.Nd5 Ne5 (15...Be5 16.Be5 de5 17.g5+–) 16.g5 (16.f4 Nec6+–) 16...Kh8? (16...Nbd7 17.f4 c6 18.fe5 cd5 19.Qd5 de5+–) 17.f4 c6 18.Ndf6 (18.fe5 cd5 19.Qd5 Nd7 20.Nd6 Qe7+–) 18...d5 (18...Ned7 A) 19.Nd6?! Nf6 20.Nf7 Rf7 21.Qf7 Qd5 22.Qd5 Nd5 (22...cd5?? 23.gf6 Nc6 24.fg7 Kg8 25.Rc1+–) 23.Bg7 Kg7+–; B) 19.Nd7 Nd7 20.Bg7 Kg7 21.Qc3 f6 22.Qc6+–) 19.Be5 (19.Rd1 Ned7 20.Nd5 cd5 21.Bg7 Kg7 22.Qd5 Qc7+–) 19...de4 20.Rd1 Qc8 21.h4 Bf6 (21...Na6 22.h5 Nc5 23.hg6+–) 22.Bf6 Kg8 23.h5 gh5 24.Bh5 Nd7 25.Bf7! Rf7 Decoy theme: f7 26.Rh7!! Kh7 A deflection 27.Qf7 1–0. MrkT – Ombraluce, internet, 2005.

6.Be2 Bg7 (6...e4 7.Nd4=) 7.0–0 (7.d4 ed4 8.ed4 Nc6+=) 7...0–0 (7...e4 8.Nd4=) 8.d3 (8.d4 e4 9.Nfd2 Be6+=) 8...Re8 (8...c6 9.d4+=) 9.Nbd2 (9.d4 ed4 10.Nd4 Qe7+=) 9...Nh5 (9...a6 10.d4=) 10.Ne4 (10.d4 e4 11.Ne1 Nf6+=) 10...f5 (10...Nf6 11.b5+=) 11.Ng3 (11.Nc3 Bb7+=) 11...Ng3= 12.fg3 e4 (12...c6!? 13.Qc2 e4 14.de4 Re4 15.Bg7 Kg7=) 13.de4 Bb2 14.Qd5 Be6 15.Qa8 Ba1 16.Ra1 Nd7 (16...Qe7 17.Rf1+=) 17.Qd8+/– Rd8 18.Ng5 Re8 19.Ne6 (19.c5 Ne5 20.Ne6 Re6 21.ef5 gf5 22.cb6 ab6+–) 19...Re6 20.c5 (better is 20.ef5 gf5 21.Kf2+/–) 20...Re4+= (20...dc5? 21.Bc4 Kf7 22.ef5 gf5 23.Rd1+/–) 21.a3 (21.cd6!? cd6 22.Rd1 Rb4 23.Rd6+=) 21...Re3 (21...bc5 22.Kf2–/+) 22.Kf2 Rc3 23.cd6 cd6 24.Bf3 (24.Rd1 Nf6 25.Bf3 Ra3 26.Rd6 Kf7–/+) 24...Nf6 (24...Ne5 25.b5–+) 25.Rd1–/+ Ne8 (25...Ra3 26.Rd6 Ne4 27.Be4 fe4 28.Re6–/+) 26.b5 (26.a4 a5–/+) 26...Rc8 (26...Ra3!? 27.Bc6 Kf8–+) 27.a4 (27.Bc6 Kf7+=) 27...Rd8 28.Bc6 (28.g4 fg4 29.Bg4 Nf6+=) 28...Nf6–/+ 29.Kf3 d5 (29...Kf7 30.Kf4–/+) 30.Kf4 (30.g4 fg4 31.Kf4 Kf7+=) 30...d4 31.h3 d3 (better is 31...Nd5 32.Bd5 Rd5–/+) 32.Ke5? (32.Ke3 Nd5 33.Bd5 Rd5 34.Rd3 Rd3 35.Kd3 Kf7+=) 32...Kf7 (32...Ne4 33.Kf4 Nc3 34.Rd2 Na4 35.Ke3–+) 33.g4 (33.Kf4!?–/+) 33...fg4–+ 34.Rf1 (34.Kf4–+) 34...Kg7 35.Rf6 d2 (35...d2 36.Rf1 d1Q 37.Rd1 Rd1–+) 0–1. Dopper,Johan – Polderman, 1994.

5.Nf3 h6

6.d4 e4!? 7.Nfd2 c6 =.

6.d4 e4 7.Nfd2 Bf5 8.Qa4 Qd7 9.b5 Qe7 10.Nc3 Nbd7 11.Qa6 Qd8 12.Qb7 Qc8 13.Qc6 Rb8 14.Nde4 Qb7 (14...Ng8 15.Ng3 Bc2 16.Qf3+–) 15.Nf6 gf6 16.e4 Bg6 17.f4 Qc6 (17...Bh7+–) 18.bc6 Nc5 (18...f5 19.e5+–) 19.dc5 bc5 20.Rb1 Bg7 21.f5 Bh5 (21...0–0 22.Bd3+–) 22.Nd5 Rg8 (22...0–0 23.h3+–) 23.Nc7 Kd8 24.Nd5 a5 (24...Kc8 25.c7 Ra8+–) 25.c7 Kc8 26.cb8R Kb8 27.Be5 Ka7 28.Bd6 Bf8 29.Bb8 Ka6 30.Rb6 1–0. pierre (2140) – arok, chesshere.com, 2007.

6.d4 e4 7.Nfd2 Bg4 8.Qc2+= Bf5 9.Nc3 Increases the pressure on e4 9...Nc6 (9...c5 10.bc5 dc5 11.d5+/–) 10.d5+/– Nb4? (better is 10...Ne5+/–) 11.Qa4+– Bd7 (11...Nd7 12.Qb4 Nc5 13.Na4+–) 12.Qb4 a5 (12...Qe7 13.Qb3+–) 13.Qa3 (13.Qb3 a4 14.Qc2 a3+–) 13...Qe7 14.Be2 0–0–0 (14...Bf5 15.Qa4 Bd7 16.Nb5+–) 15.0–0 g5 (15...Re8 16.Qb3+–) 16.Nde4! Bg7 (16...Ne4 17.Ne4 Combination) 17.Ng3 h5 (17...Ng4 18.Rab1+–) 18.Nb5 (18.Bd3 Ng4 19.Nf5 Bf5 20.Bf5 Kb8+–) 18...h4 19.Na7 Kb8 20.Nf5! Bf5 (20...Qf8 21.Ng7 Qg7+–) 21.Nc6 (21.Nc6 Ka8 22.Ne7+–) 1–0. marre – koppler, internet, 2010.

6.d4 Ne4 7.de5+/– Be7? (better is 7...de5 8.Qd8 Kd8+=) 8.Qd5+– (8.Qd5 Nf2 9.Kf2+–) 1–0. orane – xapril, caissa.com, 2007.

4.e3 c5

5.b5 Be7 6.Nf3 Bg4 7.Be2 0–0 8.d3 a6 9.a4 Bf3 10.Bf3+= ab5 11.ab5 Ra1 12.Ba1 b6 13.Nc3+/– Nbd7 14.Nd5 Nd5+= 15.Bd5 Nf6 16.Qf3 Qb8 17.0–0 Qa7 18.h3 Qa3 19.Qe2 Qb3?? 20.e4 Ra8?? 21.Ba8+– Bd8 22.Qd2 Qa4 23.Bc6 Nh5 24.Bc3 Nf4 25.Ra1 Qb3 26.Ra8 Qb1 27.Kh2 (27.Kh2 f6 28.Rd8 Kf7 29.Rd7 Kf8 30.g3 Nh3 31.Qe2 Qg1 32.Kh3 Qh1 33.Kg4+–) 1–0. phildo – mariojr, net–chess.com, 2003.

5.bc5= d5 6.cd5 (6.Be5 Nc6 7.Bf6 Qf6+/–) 6...Qd5 7.d4 (7.Nf3 e4 8.Ne5 Qc5 9.Qb3+/–) 7...Bf5 (better is 7...ed4!? 8.ed4 b6+=) 8.Nc3+– (8.de5?! Qd1 9.Kd1 Ne4 10.Bb5 Nc6=) 8...Qd8 (8...Qe6 9.Bb5 Nfd7 10.Nf3+–) 9.Bb5 Bd7 (9...Nbd7 10.Qf3 ed4 11.ed4+–) 10.de5 Bb5 (10...Ng8 11.e6 fe6 12.Qh5 g6 13.Qe5+–) 11.Qd8 (11.Nb5?! Qa5 12.Qd2 Qb5 13.ef6 g6+/–) 11...Kd8 12.Nb5 (worse is 12.ef6 Bc6 13.Rd1 Nd7+–) 12...Nd5?? (12...Nfd7 13.Nf3 Bc5+–) 13.Rd1 a6 (13...Bc5 14.Rd5 Nd7 15.Nf3+–) 14.Rd5 Nd7 15.Nd6 Bd6 16.cd6 (16.ed6 Rc8 17.Bd4 Rc6+–) 16...Nb6 (16...Rc8 17.Nf3+–) 17.Rd4 Re8 (17...Nd7 18.Rf4 Rf8 19.Rh4+–) 18.Rf4 Rf8 (18...f6 19.ef6 gf6+–) 19.e6! Nd5 (19...fe6 Exploits the pin 20.Rf8) 20.Bg7 Nf4 21.e7 (21.e7 Kd7 22.ef8N Rf8 23.Bf8 Ng2 24.Ke2+–) 1–0. Bonetti,Shane – guest2055, ICC, 2002.

5.Qa4 Bd7

6.b5 a6 7.Be2 b6 (7...Nc6 8.bc6 Bc6 9.Qb3 Bg2 10.Bf3 Bh1 11.Bh1=) 8.Nc3= g6 9.h4 (9.Nf3 Bg7=) 9...h5 10.Nf3 Bh6 11.Ng5 Bg5 (11...0–0!?+=) 12.hg5+/– Nh7 13.f4 a5? (13...ef4 14.Bf3 Ra7 15.ef4+/–) 14.Qc2 (14.Bf3!? Ra7+–) 14...Be6 15.Qd3 Bf5 16.e4 Be6 17.Na4 Rg8 (17...Qc7 18.Qg3 Rg8 19.fe5 de5 20.Be5+– (worse is 20.Qe5 Qd8+/–)) 18.fe5+– de5 (better is 18...Nd7!? 19.Qd6 Qg5+–) 19.Qd8 (19.Be5?! Nd7 20.Bf4 Qe7+/–) 19...Kd8 20.Nb6 (20.Be5?! Nd7 21.Bf4 Rh8+–) 20...Ra7 21.Be5 Nd7 (21...Rb7 22.Na4 Nd7 23.Bf4+–) 22.Nd7 Kd7 23.d4 cd4 24.c5 Ng5 25.c6 Kc8 (25...Ke7 26.b6 f6 27.Bd4 Raa8+–) 26.b6 Re7 27.Rb1 1–0. pcmvr – dennism (2315), net–chess.com, 2012.

6.b5 Be7 7.Qc2 (7.Be2 0–0+=) 7...0–0 8.Nf3 a6 (8...Bg4 9.Be2+=) 9.a4 ab5 (9...Bg4 10.h3 Bh5 11.d3+=) 10.ab5= Ra1 11.Ba1 Be6 (11...Qb6 12.Be2=) 12.Ng5 g6 (12...Bc8 13.f4=) 13.Ne6+= fe6 14.g3 (14.Be2 Nbd7+=) 14...Nbd7 (14...Qc7 15.Bh3 Kf7 16.0–0+=) 15.Bh3+= Kg7 (15...Kf7!?+=) 16.Be6+/– Nb6 17.0–0 (17.Nc3 Ne8 18.Nd5 Nc7 19.Nc7 Qc7+/–) 17...Qc7 (17...Ne8 18.f4+/–) 18.Nc3 (18.f4 Bd8+–) 18...Ra8 (18...Bd8!?+/–) 19.f4+– ef4 20.ef4 Bd8 (20...Re8 21.f5+–) 21.f5 Qe7 22.Bb2 Nbd7 (22...Kh6+–) 23.Nd5 Qe8 24.Bd7 Qd7 25.fg6 (25.fg6 Qh3 26.Nf6 Qf1 27.Kf1 Bf6 28.Qe4+–) 1–0. pcmvr (2870) – rr (2400), net–chess.com, 2008.

6.b5 Bf5 7.d3+=.

5.b5 b6

6.a4 a6 7.Nf3 ab5 8.ab5 e4?? (8...Ra1 9.Ba1 e4 10.Ng1=) 9.Ng1 (better is 9.Ra8 Nbd7 10.Nh4+–) 9...Bg4 10.f3 ef3 11.Nf3 Ne4?? (better is 11...Ra1 12.Ba1 d5=) 12.Ra8+– Be7 13.Nc3 (better is 13.Bg7!? Rg8 14.Bb2 d5+–) 13...Bh4 14.g3 Bg3 (14...Bf6+–) 15.hg3 Ng3 (15...f5 16.Nd5 0–0 17.Rg1+–) 16.Rg1 Qf6 (16...Nf1 17.Rg4 Nd2 18.Qd2 h5 19.Rg7 Kf8+–) 17.Rg3 (better is 17.Rb8 Kd7 18.Rh8 Nf1 19.Rg4 Qf5+–) 17...h5 18.Rb8 Kd7 19.Rh8 Bf3 20.Qf3 Qf3 21.Rf3 f5 (21...Ke7 22.Nd5 Ke6 23.Nc7 Ke7 24.Re8 Kd7 25.Rf7) 22.Rf5 g6 (22...d5 23.Rd5 Ke6 24.Bh3 Kf7 25.Rd7 Kg6 26.Ne4 h4 27.Rg7) 23.Rf7 Ke6 24.Rhh7 Ke5 (24...g5 25.Nd1 d5 26.Rf6) 25.Nd5 Ke4 26.d3 1–0. Fournier,Frederic (1710) – panchito, Active, 2007.

6.a4 Bf5 7.d3 Be7?? ( 7...Nbd7=) 8.Qf3+– Kf8 (8...Na6 9.Qf5 Nb4 10.Na3+–) 9.Qf5 (9.Qa8 Qc7+–) 9...Qd7 (9...Nbd7 10.Ne2+–) 10.Qf3 g6 (10...d5+–) 11.Qa8 Kg7 12.Qf3 Rf8 13.Ne2 Kg8 14.e4 Qe6 15.Ng3 Nbd7 16.Be2 Rc8 17.0–0 Nf8 18.Nd2 Rc7 19.Nb1 (19.a5 h5+–) 19...h6?? (19...Rc8 20.Nc3 h5+–) 20.Nc3+– N6h7 (20...h5 21.Qe3+–) 21.Nd5 Rc8 22.Bc1 Ng5 23.Ne7 Qe7 24.Bg5 Qg5 25.Qe3 Qe3 26.fe3 Rc7 27.Rf2 Re7 28.Raf1 h5 29.Rf6 Kg7 30.Bh5 gh5 31.Nh5 Kg8 32.Ng3 Nh7 33.Rh6 Ng5 34.Nf5 Re6 35.Re6 fe6 36.Nd6 Kg7 37.Nc8 Kg6 38.Na7 Kh5 39.Nc8 (39…Kg6 40.Nb6+–) 1–0. slavisa11 – SirCharles, Live Game Caissa's Web, 2004.

6.Qf3!? d5 7.Be5 +/–.

5.bc5 dc5

6.Be5 Nc6 7.Bb2 Bd6 8.Nf3 Be6 (8...0–0 9.Be2+=) 9.Be2 0–0 10.0–0 a6 (10...Re8 11.d3+=) 11.d4+/– White fights for the Initiative 11...cd4 12.ed4 The passed pawn on d4 quickly leads to threats 12...Bf5 13.d5 Na5 14.Bd3 Bg4 (14...Bd3 15.Qd3 b5 16.cb5 ab5 17.Ng5+/–) 15.Nbd2 Re8 16.h3 Bf3 17.Nf3 (17.gf3 Nd5 18.Bh7 Kh7–+) 17...Rc8 18.Rc1 Qb6? (better is 18...Nh5+/–) 19.Bf6+– gf6 20.Nd4 Bc5 (20...h5 21.Nf5 Re5 22.Qh5+–) 21.Rb1 Bd4 (21...Qc7 22.Qg4 Kf8 23.Nf5+–) 22.Rb6 Bb6 23.Qh5 Kf8 24.d6 Re6 (24...Re5 25.Qh6 Ke8 26.Qf6+–) 25.Qh7 Ke8 (25...Rd6 26.Qh8 Ke7 27.Qc8 Rd3 28.Re1 Kd6 29.c5 Bc5 30.Qd8 Kc6 31.Qd3 b5 32.Qf3 Kc7+–) 26.Bf5 Kd7 27.Qf7 (27.Qf7 Kc6 28.Qe6 Bf2 29.Rf2+–) 1–0. Woelfelschneider,Peter – Zorn, 2009.

6.Be5 Nc6 7.Bf6 Qf6+=.

6.Nf3 Bd6 7.Be5+= Be5 8.Ne5 Bf5 9.Be2 0–0 10.0–0 h6 11.d4 cd4 12.ed4 Nc6 13.Nc6 bc6 14.Nc3 White prepares d5 14...Rc8 15.Re1 c5 16.d5 Ne4 (better is 16...Re8!?+/–) 17.Ne4+– Be4 18.Bf3 (18.Bg4!? f5 19.Bh3 g5+–) 18...Bf3 19.Qf3 (19.gf3?! Qg5 20.Kh1 Qf4+=) 19...Qd6 20.Re2 Rce8 21.Rae1 Re2 22.Qe2 Qf4 23.Qe7 Qc4 24.Qa7 (24.d6 Qd5 25.d7+–) 24...Qd5= 25.a4 c4 26.a5 (26.Qc7 Qd2 27.Rf1 c3+=) 26...Qb5 (better is 26...Ra8!? 27.Qe3 Qa5–/+) 27.a6 Re8 28.Re8 Qe8 29.h3 Qe1 30.Kh2 c3? (better is 30...Qe5 31.g3 c3+=) 31.Qb8+– Kh7 32.a7 Qa1?? (better is 32...c2 33.a8Q c1Q 34.Qg8 Kg6 35.Qa6 Qe6 36.Qd3 Qf5 37.Qf5 Kf5 38.Qf7 Ke4 39.Qg7 Qf4 40.Qg3 Qf6+–) 33.a8Q (33.a8Q Qa8 34.Qa8+–) 1–0. Fournier,Frederic – Guest1265840, Partie amicale, 5m + 0s, 2007.

6.Nf3 e4!? 7.Ne5 Bd6 +=.

5.bc5 Nc6

6.d4 A) worse is 6...dc5 7.d5+/– (worse is 7.de5 Qd1 8.Kd1 Ng4=); B) 6...ed4 7.ed4 dc5=.

6.cd6 Bd6 7.Nf3 0–0 (7...e4 8.Nd4=) 8.d3 e4 (8...Bg4 9.Nc3+=) 9.Nd4 Ne5 10.Nc3 Bg4 11.Qd2 ed3 12.Bd3 Rc8 13.f3 Bd7 14.Rd1 (14.Qe2 Bb4=) 14...Nc4+= 15.Bc4 Rc4 16.Nf5 (16.Nb3 Bb4 17.a3 Be7=) 16...Bc7 17.Nd6 Bd6 18.Qd6 Qa5 19.Qd2 Qc5 (19...Qb6 20.e4=) 20.0–0 (20.Ne2 Rc2 21.Bd4 Qc4=) 20...Be6 (20...Re8 21.Kh1 Be6 22.e4=) 21.Rc1= Qb6 (21...Rc8 22.Rfd1=) 22.Ne2 Rd8 23.Nd4 Ra4 (23...Rd7 24.a3=) 24.a3 Ne8 (24...Ra5 25.Ne6 fe6 26.Bd4+=) 25.Qe2 (25.Qf2 Rc4=) 25...Bd5 26.Qf2 (26.Rfd1 Nd6=) 26...Nd6 27.Rfd1 f5 (27...f6 28.e4 Nc4 29.Bc3+=) 28.Nf5+= Nf5 29.e4 Ne3 (29...Be4 30.Rd8 Qd8 31.fe4+/–) 30.Rd3+/– Rc4 31.Qe3 Qe3 32.Re3 Rc1 33.Bc1 Be4 34.Re4 (34.fe4 Rd1) 34...Rd1= 35.Kf2 Rc1 36.Re7 Ra1 37.Rb7 Ra3 38.f4 Ra2 39.Kf3 h5 40.f5 a5 41.Ra7 h4 (41...a4 42.g3=) 42.h3 (42.g4 hg3 43.hg3 Ra3 44.Kf4 Ra4 45.Ke5 Ra2+=) 42...Kf8 (42...a4 43.g4 hg3 44.Kg3=) 43.g4 (43.Kg4 Rg2 44.Kh4 Ra2=) 43...hg3 44.Kg3 a4 45.h4 a3 46.h5 (46.Kf4 Ra1 47.Kf3 a2=) 46...Ra1 47.Kg2 (47.Kf3 Kg8+=) 47...a2 (47...Kg8 48.Kf3=) 48.Ra4 (48.Kh2!?=) 48...Ke7 49.Ra6 Kf7 50.Kh2 Kg8 (50...Rf1 51.Ra2 Rf5 52.Ra7 Kg8 53.h6 Rh5 54.Kg2 Rh6 55.Rd7–/+) 51.Ra7 (51.Kg2 Kh7+=) 51...Rf1–/+ 52.Ra2 Rf5 53.Ra8 Kh7 54.Kg3 Rh5 55.Kg4 (55.Ra6 Rg5 56.Kf3 Rg1–/+) 55...Rh1 56.Re8 (56.Kf4 Rf1 57.Kg3 g5–/+) 56...Rg1 (56...Kg6 57.Rf8–/+) 57.Kf5 g6 (57...Rg2 58.Re4–/+) 58.Kf6 Rg3 59.Rd8 Rg2 (59...Rf3 60.Kg5 Rf5 61.Kg4–/+) 60.Rd1 (60.Rc8 Rf2 61.Kg5 Rf5 62.Kg4 Rf1–/+) 60...Rf2 61.Kg5 Rf5 62.Kg4 Rc5 (62...Rh5 63.Kf4–/+) 63.Rh1 Kg7 64.Rf1 (very interesting position, Black is unable to make a profit of his pawn) ˝–˝. marekt – Layla, chesshere.com, 2005.

6.cd6 Bd6 7.Nf3 0–0 8.d3 Re8 9.Nbd2 b6 (9...Rb8 10.Be2+=) 10.Be2+= Bb7 (10...Bf5 11.0–0+=) 11.a3 (11.0–0 Qd7+=) 11...Qc7 (11...Rc8 12.0–0+=) 12.Qc2 (12.0–0 Rad8+=) 12...h6 13.e4 Rac8 (13...Nh5 14.0–0+=) 14.Rc1 (14.Rb1 Red8+=) 14...Qe7 15.Nb1 (15.Qb3 Bc5+=) 15...Na5 (15...Red8 16.0–0=) 16.Nfd2 (16.0–0 Nc6+=) 16...b5 (16...Nc6 17.Nb3=) 17.Qc3 (17.0–0 a6+=) 17...b4 (17...Qc7 18.Bf3+= (worse is 18.cb5 Qb6–/+)) 18.ab4 Bb4 19.Qc2 Nc6 20.0–0 a5 (20...Red8 21.Nb3+=) 21.Nf3 Red8 (21...Bc5 22.Nc3+=) 22.Nc3 Bc3 (22...Bc5 23.Na4+=) 23.Qc3+/– Ra8 24.Ba3 (24.Ra1 Nd7+/–) 24...Qc7 25.Rb1 Nd4 (25...Nh5 26.Bc1+/–) 26.Nd4 ed4 27.Qc2 (27.Qb2 Bc8+/–) 27...Bc8 28.Rb5 (28.Rfc1 Bg4+/–) 28...a4 (28...Bd7 29.Rb2+/–) 29.Rfb1 (29.Bc5 Ba6 30.Bb6 Qc6 31.Bd8 Bb5 32.Bf6 gf6+–) 29...Ra5 (29...Re8 30.Qb2+–) 30.e5 Ng4? (better is 30...Nd7 31.Bd6 Qa7+–) 31.Bd6 Qa7 (31...Rd6 32.Ra5 Re6 33.Bg4 (33.Ra4?! Qe5 34.g3 Qe2 35.Qe2 Re2+–) 33...Qa5 34.Be6 Be6 35.Qe2+–) 32.Bc5 (better is 32.Bb8 Qa8 33.Bf3+–) 32...Qa8? (32...Qc5 33.Rc5 Rc5 34.Bg4 Bg4 35.Qa4 Re5+–) 33.Bf3 (33.Bf3 Rb5 34.Rb5+–; 33.Rb8!? Qb8 34.Rb8 Rc5 35.Bg4 Re5+–) 1–0. Ruhle,O – Peetoom, Bargteheide op, 1988.

6.cd6 Bd6 7.Nf3 0–0 8.d4 Bb4 9.Bc3 Qa5 10.Bb4 Nb4=.

6.cd6 Bd6 7.Nf3 e4 8.Ng5=.

4.e3 c6

5.a4 a6 6.Qc2 Be6 7.Nf3 h6 8.Nc3 Be7 9.Rc1 (9.d4 Qb6 10.de5 de5=) 9...d5 (9...Qb6!? 10.Qb3 a5+=) 10.cd5+= Nd5 (10...cd5 11.Ne5 Bb4 12.Be2+=) 11.Nd5+/– cd5 12.b5 (better is 12.Be5!? 0–0 13.Qc3+/–) 12...e4 13.Nd4 Bd7 14.Qb3 Bg4 15.h3 (15.ba6 ba6 16.f3+=) 15...Bh5+/– 16.Nf5 Bg6? (16...Bf8 17.Bg7 Bg6 18.Bh8 Bf5 19.ba6 ba6 20.Qb7+–) 17.Ne7 (better is 17.Ng7!? Kf8 18.Ne6 fe6 19.Bh8+–) 17...Ke7 18.Bg7 Rh7 19.Be5 Ke6 20.Bc7 Qc8? (20...Qe8+–) 21.Qd5!? Kd5 22.Bc4 Kc5 23.Be6 Kb4 24.Bc8 Ka4 (24...b6 25.Bb7 Ra7 26.Ba6 (26.Bb8 Rb7 27.Bd6 Ka5+–) 26...Na6 27.Bb6+– (27.ba6?! Ra6 28.Rc6 Ka4+/–)) 25.Bb7 Ra7 26.ba6 (better is 26.Ra1 Kb5 27.Rb1 Kc4 28.Bb8 Rb7 29.Rb7 Bh5+–) 26...Nd7?? (26...Na6 27.Bc6 Kb4+–) 27.0–0 (better is 27.Bc6 Kb4 28.Bd7 Ra6 29.Rb1 Kc5 30.Rb5 Kc4+–) 27...f5 28.Rc3 Bf7 29.Bc6 1–0. Sundin,Thommy (1900) – Enberg,Bernt, Iggesund Sweden, 1988.

5.Qc2 Qb6 6.a3 a5 7.b5 cb5 8.cb5 Be6 9.Nf3 Be7 10.Ng5 Nbd7 11.Ne6 fe6 12.Nc3 Rc8 13.Qd1 d5 Black prepares the advance e4 14.Rc1 0–0 15.Be2 Qd6 16.0–0 e4 17.d3 ed3 18.Bd3 Ne5 19.g3 Qd7 20.Be2 Nc4 21.Nd5? (better is 21.Bc4 Rc4 22.Qd3+=) 21...Qd5–+ (21...ed5?! 22.Bf6 Ne3 23.fe3 Rc1 24.Qc1 Bf6 25.Qd2=) 22.Bf6 Bf6 23.Bc4 Rc4 24.Qg4 (24.Qd5 ed5 25.Rfd1–+) 24...Rg4 0–1. combijack (1775) – steenbok (1830), gameknot.com, 2011.

5.Qc2 Nbd7 6.a3 Be7 7.Bd3 Qc7 (7...d5 8.cd5 cd5 9.Bf5+=) 8.f3 (8.Nf3 a5=) 8...b6 9.Ne2 a6 10.Ng3 Nf8 11.0–0 Ng6 12.Be2 c5 13.d4 0–0 14.d5 Re8 15.Nd2 cb4 16.ab4 b5 17.Kh1 (17.Qc3 bc4 18.Bc4 Qb7=) 17...Bd7 (17...Nd5 18.Qe4 Nb6 19.cb5=) 18.Rac1 Rac8 19.e4 Nf4 20.Qc3 (20.Qb3 Qb7=) 20...Qb7 21.Ba3 (21.Rfe1 Rc7=) 21...bc4 (21...Ne2 22.Ne2 bc4 23.Bb2–/+) 22.Nc4 (22.Bc4 Qb6=) 22...Qa7 (better is 22...Bb5!? 23.Qb3 Ne2 24.Ne2 Nd5–/+) 23.Qe3= Qb8 (23...Qe3 24.Ne3 Ne2 25.Ne2=) 24.Rfd1 (24.Nb6 Rc1 25.Rc1 Ne2 26.Ne2 Qa7=) 24...h5 (24...Ba4 25.Rd2=) 25.Bd3 h4 26.Ne2 N6h5 (26...Nd3!? 27.Rd3 Nh7=) 27.Nf4 Nf4 28.g3 (28.Nb6!? Qa7 29.Qg1 Nd3 30.Rd3 Rc1 31.Bc1+=) 28...hg3 29.hg3 Nh3 (29...Nd3!? 30.Rd3 Qb5+=) 30.Qe2 Qa7 (better is 30...Ba4 31.Rf1 Bd7+=) 31.Rc2?? (better is 31.Kg2 Ng5 32.Rh1+/–) 31...Ba4–/+ 32.Rf1 Bc2 33.Qc2 g6 (33...f5 34.ef5 Qd4 35.Qe2+=) 34.Qh2 (34.Bb2 Ng5+=) 34...Ng5 35.Bc1 Kg7 (35...Qb8 36.Qh6 Qb4 37.Bg5 Bg5 38.Qg5 Rc4 39.Bc4 Qc4 40.Kg2+=) 36.Bg5 Bg5 37.Nd6 Rh8 38.Nc8 Rh2 39.Kh2 Qb7 40.Nd6 Qb4 41.Ba6? (better is 41.Nc4–/+) 41...Qd6–+ 42.Bc4 (42.Ra1 Qb4 43.Kh3 f5 44.ef5 Qd4 45.f6 Kf6–+) 42...Qc5 43.Be2 Qe3 (43...Qc2 44.Rf2–+) 44.Bc4 Be7 45.Kg2 Bc5 46.Kh3 g5 (better is 46...f5 47.ef5 gf5 48.Bb5–+) 47.Kg4 Kg6 48.Bb5 Qb3 (better is 48...f5 49.ef5 Kf6–+) 49.Be2 (49.Bd7 Kf6–+) 49...Qb8 (better is 49...Qc2 50.Ra1 f5 51.Kh3 Qe2 52.ef5 Kf5 53.g4 Kf4 54.Ra4 Kf3 55.Ra3 Ba3 56.d6 Qg2#) 50.Kh3 f6 (50...Qb2 51.Ba6–+) 51.Bc4 Qh8 52.Kg2 Qa8 53.Kh3 (53.Bb5 Qa3 54.Kh3 f5 55.ef5 Kf5–+) 53...Qa4 54.Bd3 Qa3 55.Bb5 Qb3 56.Be8 Kg7 (better is 56...Kh6 57.Kg4 Qb7–+) 57.Kg4 (57.Bh5 f5! 58.ef5 Kf6–+) 57...Qd3 (better is 57...Qb7 58.Kh3 Qc8 59.Kg2 Qe8–+) 58.Rc1 Qd4 (better is 58...f5 59.ef5 Qd5 60.Bg6–+) 59.Rf1?? (59.Rh1 Bd6 60.Bd7 Qc5–+) 59...Kf8 (59...f5 60.Kf5 Qd3 61.Kg5 Qf1 62.Kg4–+) 60.Bc6? (60.Bd7 Ke7 61.Bf5 Bb4–+) 60...Qe3 (better is 60...f5 61.Kf5 Qd3 62.Re1 Qf3 63.Kg6 Qf7 64.Kh6–+) 61.Bb5 Bb4 62.Kf5 (62.Bd7 Ke7 63.Bc8 Kd6–+) 62...Kg7 (better is 62...Ke7–+) 63.Ke6 (63.Kg4–+) 63...Qc5 64.Ba4 Qc8 65.Bd7 Qa6 (65...Qa6 66.Kf5 Qf1–+) 0–1. Alkan,Ceyda – Yuce,Name, TUR–ch (Women), 2008.

5.Qc2 g6 6.Nf3 Bg7 7.Nc3 0–0 8.Be2 Be6 9.h4 Nbd7 10.Ng5 d5 11.h5 Bf5 12.e4 Ne4 13.Nce4 Qg5 14.Ng5 Bc2 15.Rc1 Bf5 16.g4 Be6 17.hg6 hg6 18.Ne6 fe6 19.g5 e4 20.Bc3 d4 21.Ba1 d3 22.Bg4 Rae8 23.Bh3 (23.Rh4 Ba1 24.Ra1 Ne5–+) 23...Ne5 24.Be5 Be5 25.b5 Rf4 26.a4 Kg7 27.a5? (better is 27.bc6 bc6 28.Rb1–+) 27...Rh8 28.Bg2 Rh1 29.Bh1 Rg4 (better is 29...Bd4 30.Rb1 Bf2 31.Kf1 e3 32.de3 Be3 33.Kg2 cb5 34.Rb5 b6 35.ab6 ab6–+) 30.Kf1 Bh2 31.Bg2 Rg5 (better is 31...cb5!? 32.Rb1 a6 (32...Rg5?! 33.Rb5 Kf6 34.Rg5 Kg5 35.Be4+=) 33.cb5 Rg5–+) 32.a6+= b6 33.bc6 Kf6 34.c7? (better is 34.Re1!?=) 34...Bc7–/+ 35.Be4 Bh2 36.Bg2 Ke7 37.Rc3 Ra5 38.Bb7 Ra4 39.c5 bc5 40.Rd3 Bd6 41.Rh3 Kf6 42.Ke2 Bc7 43.d3 Bb6 44.Rf3 Kg7 45.Rg3 c4 46.dc4 Rc4 47.Kd3 Ra4 48.Ke2? (better is 48.f3+=) 48...Ra2–+ 49.Kf3 Rf2 (worse is 49...Bf2 50.Rg2+/–) 50.Ke4 Kf6 51.Rb3 Ra2 52.Rf3 Ke7 53.Rg3 Kf6 54.Rf3 Ke7 55.Rb3?? (better is 55.Rg3=) 55...Ra5 56.Rd3 g5 57.Bc8 Ra4 58.Kf3 Rd4 59.Rb3 Kf6 60.Bb7 g4 61.Kg2 e5 62.Rb6 ab6 63.a7 Ra4 64.a8Q Ra8 65.Ba8 Kf5 66.Bc6 Kf4 67.Bb5 e4 68.Bc4 e3 69.Bd3 ˝–˝. combijack (1790) – tunmaw (1715), gameknot.com, 2011.

5.Nc3 d5 6.c5 d4 7.ed4 ed4 8.Na4 d3 9.Qf3 b5 10.cb6 ab6 11.Bf6 Qf6 12.Qf6 gf6 13.Nb6 Ra7 14.Nc8 Rb7 15.Bd3 Kd8 16.Bf5 Nd7 17.b5 Rb5 18.Bd7 Kd7 19.Na7 Re5 20.Kf1 Bc5 21.Nc6 Kc6 22.Nf3 Re6 23.g3 Rb8 24.Kg2 Re2 25.Rhf1 Rb2 26.Rac1 Kd5 27.Ra1 Bb4 28.a4 Bd2 29.Rfd1 Kc5 30.Rd2 Rbd2 31.Nd2 Rd2 32.a5 Rd7 33.a6 Ra7 34.Kf3 Kd5 35.Kg4 Ke6 36.Ra5 f5 37.Kf4 Kf6 38.Rf5 Kg6 39.Ra5 f6 40.h4 f5 41.f3 Kh6 42.Kf5 Kh5 43.Kf4 Kh6 44.g4 Kg6 45.Kg3 Kh6 46.h5 Kg7 47.f4 Kh6 48.Kh4 Rg7 49.g5 Rg5 50.fg5 Kg7 51.h6 Kg6 52.a7 1–0. rayfranke (2470) – snowcert (2530), net–chess.com, 2014.

5.Nc3 Be6 6.Nf3 Nbd7 7.Be2 Be7 8.0–0 0–0 9.d4 ed4 10.Nd4 d5 11.f4 Nb6 12.c5 Nc4 13.Bc4 dc4 14.Qe2 b5 15.Nc6 Qc7 16.Ne7 Qe7 17.Nb5 Rab8 18.Nd6 Rb4 19.f5 Bd5 20.Bf6 Qf6 21.Qd2 Qb2 22.Qd5 1–0. rcm06 (2160) – tflk (1735), gameknot.com, 2014.

5.Nc3 Be7 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nc3 c6).

5.Nc3 g6 6.Be2 Bg7= 7.Nf3 0–0 8.0–0 Re8 (8...Bf5 9.d4=) 9.d3 (9.d4 Nbd7=) 9...b6 (9...a5 10.b5=) 10.Qb3 (10.Ng5 Bb7+=) 10...d5 (10...Nbd7+=) 11.Rfd1 (better is 11.Rad1!?+=) 11...d4= 12.Ne4 (12.Na4 de3 13.fe3 Ng4=) 12...Ne4 13.de4 c5 14.a4 (14.bc5 bc5 15.Rab1 Qd6+=) 14...Nd7 (14...Nc6 15.b5 Na5 16.Qc2+=) 15.ed4 (15.a5!?+=) 15...ed4–/+ 16.Nd2 Qc7 17.a5 (17.g3 a5 18.ba5 ba5–/+) 17...Rb8 (17...ba5!? 18.b5 Bb7–+) 18.ab6+= ab6 19.Bd3 (19.g3 Bb7 20.Ra7 cb4 21.Qb4 Nc5+=) 19...Ne5 (19...Bb7 20.g3–/+) 20.b5 (20.Be2 Bg4 21.Bg4 Ng4–/+) 20...Bh6 21.f3 (21.Be2 Bb7–/+) 21...Qe7 (21...Bb7 22.Nf1–+) 22.Nf1–/+ Qh4 23.Qc2 (23.Ra7 Re7 24.Qa3 Bb7–/+) 23...f5!–+ 24.ef5 (better is 24.Be2–+) 24...Bb7?? (better is 24...Nd3 25.fg6 Nb2 26.gh7 Kh8 27.Qb2 Kh7 28.Qc2 Kg7 29.Ra7 Rb7–+) 25.Be4 (better is 25.fg6!? hg6 26.Bg6=) 25...gf5+= 26.Bb7 (26.Bf5 Re7 27.Ra7 Be4 28.Be4 Ra7+=) 26...Rb7 27.Qf5 Rf7 (27...Rg7 28.Bc1+=) 28.Qc2 1–0. Zampier,Alexandre – Da Costa,Jairo Alves, 5th SP Open Classico – Grupo C Sub, 2016.

5.d3 Nbd7 (5...Be7 6.d4+=) 6.Nc3 (6.Nf3 a5 7.b5 cb5 8.cb5 a4=) 6...Be7+= 7.Nf3 d5 (7...0–0 8.Be2=) 8.a3 0–0 (8...a5 9.b5=) 9.Qb3 (9.cd5 cd5 10.Qb3 Qb6=) 9...dc4+= 10.dc4 Qc7 (10...a5 11.Be2+=) 11.Bd3 b6 12.0–0 h6 (12...a5 13.Rfd1=) 13.Rac1 (13.Rfd1 Rd8+=) 13...Bd6 (13...Rd8 14.Rfd1=) 14.Ne4 White intends c5 (14.Rfd1 a5=) 14...Be7 (14...Ne4 15.Be4 a5 16.Rfd1 ab4 17.ab4+=) 15.h3 (15.Rfd1 a5+=) 15...a6 (15...a5 16.Rfd1=) 16.Ng3 (16.Rfd1 Rd8+=) 16...g6 (16...c5!?=) 17.c5+/– bc5 18.Bg6 Nd5 (18...cb4 19.Nf5 Nc5 20.Ne7 Qe7 21.Qb4 fg6 22.Rc5 Rb8 23.Qb8 Qc5 24.Qe5 Qd5+–) 19.Bb1 (19.Bf5 N5b6+–) 19...N7f6? (better is 19...Rd8+/–) 20.Be5+– (20.Be5 Qb6 21.e4+–) 1–0. Brzoza,Miroslaw – Macedonski, corr Poland, 1983.

5.Bd3 Be7 6.Ne2 Na6 (6...e4 7.Bc2+=) 7.Qb3 (7.a3 Be6=) 7...e4+= 8.Bc2 Bg4 (8...d5 9.Bf6 Bf6 10.Nbc3+=) 9.Nbc3 d5 10.c5 (10.cd5 Be2 11.Ke2 cd5 12.Qa4 Kf8+=) 10...Qd7 (10...b6 11.Qa4 Qc8 12.d4+=) 11.h3 (11.d3 b6 12.de4 bc5+=) 11...Be6 (11...Bf5 12.0–0=) 12.Nd4 b6 13.Qa4? (better is 13.Ne6!? fe6 14.Qa3=) 13...Nb4–/+ 14.Ne6 (14.Qb4 Decoy theme: b4 14...bc5 Theme: Double Attack) 14...Nc2–+ 15.Qc2 Qe6 16.cb6 ab6 17.Ne2 Qd7 18.0–0 0–0 19.f4 (19.d3 Rfc8–+) 19...Qd6 (19...Ra5!? 20.Rfc1 c5 21.Bc3–+) 20.Nd4–/+ c5 (20...Rfc8 21.Rfc1–/+) 21.Nf5 Qd7 22.g4 (22.Ne7 Qe7 23.Qb3 Qe6–/+) 22...h6 (22...Rfd8 23.Qb3–+) 23.Rf2 (23.Ne7 Qe7 24.Qb3 Rfd8–/+) 23...h5 (23...Ra6 24.Ng7 Kg7 25.g5–+) 24.Qd1 (24.Ne7 Qe7 25.g5 Nd7–/+) 24...hg4 25.hg4 Rad8 (25...Qe6!?–+) 26.Ne7 (26.Rh2 Rde8=) 26...Qe7–/+ 27.g5 Ne8?? (better is 27...Nh7+=) 28.Qh5+– Threatening mate... how? 28...d4 (28...f5 29.Rh2 Nf6 30.Bf6 Rf6+–) 29.Rh2 1–0. Skipworth,Arthur – Cuthbertson, BCA–02.Challenge Cup (year?), 1868.

5.d4 d5 6.a3 e4=.

5.d4 Be6 6.de5 (6.Nd2 ed4 7.ed4 d5=) 6...de5+= 7.Be5? (better is 7.Qd8!? Kd8 8.a3+=) 7...Bb4–/+ 8.Bc3 Qd1 9.Kd1 Bc3 (9...Bc3 10.Nc3 Na6–/+) 0–1. Rush,Bradley – Molina,Vicente Andres, OP–2012–0–02367, 2012.

5.Be2 Nbd7 6.Nc3 h6 (6...Be7 7.Nf3=) 7.d4 Be7 8.Nf3 e4 9.Nd2 d5 10.Qb3 Nb6 11.c5 Nbd7 12.0–0 0–0 (12...b6 13.b5 Bb7 14.cb6 Qb6 15.Rfc1+=) 13.f3 (13.b5 Re8+=) 13...ef3= 14.Rf3 Nh7 (14...Re8 15.b5=) 15.Raf1 (15.e4 de4 16.Nce4 Ndf6+=) 15...Ndf6 (15...Bg5 16.Nd1+=) 16.Qc2 (16.b5 Ng5 17.Rf4 Qe8+=) 16...Bg4 (16...b5 17.R3f2=) 17.Rf4 (17.R3f2 Ng5=) 17...Be2 18.Ne2 Qd7 19.Ng3 Ng5 20.Nf5 (20.a4 Ne6 21.R4f2 a5 22.ba5 Ra5=) 20...Nge4 (20...Rae8!?=) 21.Ne4+= Ne4 22.Rg4 (22.Re4 de4 23.Qe4 Bg5=) 22...Bg5 23.h4 Be3?? (better is 23...g6 24.hg5 gf5=) 24.Ne3+– f5 (24...Kh8 25.Nf5 Rg8 26.Re4 de4 27.Nd6+–) 25.Rgf4 Rae8 (25...g6 26.R1f3+–) 26.Nf5 Rf5 (26...Rf6 27.Bc1+–) 27.Rf5 Ng3 28.Rf7! Qg4 (28...Qf7 29.Qf2 Double attack (29.Qf2 Decoy)) 29.Qf2 Nf1 30.Qf1 Re2 (30...Qg3 31.Rf2+–) 31.Rf2 Re4 (31...Re8 32.Bc3+–) 32.a4 (32.Rf8 Kh7+–) 32...Kh7 (32...Re8 33.Bc3+–) 33.Rf7 Re2 34.Bc3 Qe4 (34...Rc2 35.Ba1 Rd2 36.Re7+– (36.Rb7 Rd1 37.Rf7 a6–/+)) 35.Qf5 (35.Rb7?! Re3 36.Bd2 Re2+/–) 35...Qf5 36.Rf5 Kg6 37.g4 (37.Re5!? Rc2 38.Be1 Kf7+–) 37...Re3 38.h5 Kh7 39.Ba1 Rg3 40.Kf1 Rg4 41.Bc3 Rg3 (41...Kg8 42.b5+–) 42.Be1 Ra3 (42...Rg4 43.Rf7 Rd4 44.Rb7+–) 43.Rf7 Ra4 44.Rb7 Ra1 (44...Ra3 45.b5 cb5 46.c6+–) 45.Rc7 Ra6 (45...Rd1 46.Rc6 Rd4 47.Ra6 Rf4 48.Ke2+–) 46.Ke2 Ra2 47.Bd2 a5 (47...Ra6 48.Bf4+–) 48.ba5 Ra4 49.Kd3 Ra3 50.Bc3 Ra2 51.Rc6 Rh2 52.a6 Rh5 (52...Rf2+–) 53.a7 (53.a7 Rh3 54.Kc2 Rh2 55.Kb3+–) 1–0. Wall,Bill – Varna, internet, 2002.

5.Be2 Be7 6.d3 0–0 7.Nf3 Nbd7 8.0–0 Qc7 9.Nbd2 d5 10.a3 b6 11.cd5 cd5 12.Rc1 Qd6 13.Nh4 g6 14.d4 e4= 15.Qe1 Re8 16.f3+= Nf8 17.fe4+/– Ne4 18.Nhf3 Bg4 19.Ne5 Be2 20.Ne4+– de4 21.Nf7 Qd5 22.Qe2 Ne6 23.Ne5 Rf8 24.Rf8 Rf8 25.Nc6 Bg5 26.Qd2 a6 27.Ne5 Qb3 28.Rc3 Qa2 29.Qc2 Qd5 30.Qb3 Qb3 31.Rb3 Rc8 32.d5 Ng7 33.d6 Ne6 34.g3 Rc2 35.Ng4 h5 36.Nf6 Kf7? 37.Ne4+– Bh6 38.d7 Nd8?? 39.Bf6+– Rc1 40.Kf2 Ne6 41.d8N Nd8 42.Bd8 Ke6 43.Bb6 Rc2 44.Kf3 (44.Kf3 Rc6 45.Bd4+–) 1–0. guest231 – guest776, ICC, 2002.

5.Nf3 Na6 6.a3 Qe7 (6...Bg4 7.h3 Bh5 8.g4=) 7.Nc3 Bg4 8.h3 (8.Be2 e4 9.Nd4 Be2 10.Qe2 c5+=) 8...Bf3 (8...Bh5 9.g4 Bg6 10.Nh4=) 9.Qf3 g5 (9...Nc7 10.Bd3=) 10.Bd3 Bg7 11.0–0 (better is 11.Bf5+/–) 11...e4? (better is 11...h5!?+=) 12.Ne4+– Ne4 13.Bg7 Nd2 14.Qf5 (better is 14.Qf6 Rg8 15.Rfd1+– (15.Bh7?! Nf1 16.Bg8 Qf6 17.Bf6 Nd2+–)) 14...Nf1? (14...Rg8 15.Bf6 Qe6 16.Qe6 fe6+–) 15.Bh8 (15.Rf1?! Rg8 16.Bf6 Qe6 17.Qe6 fe6 18.Bh7 Kf7 19.Bg8 Kf6+/–) 15...Ne3 16.fe3 Qe3 17.Kh1 Kd8 (17...Nc7 18.Rf1 Qe7+–) 18.Qf7 Qd3 19.Re1 Nc7 20.Bf6 Kc8 21.Qg8 Kd7 (21...Ne8 22.Qe8 Kc7 23.Qa8 Qf1 24.Rf1 b5 25.Bd8 Kd7 26.Qa7 Kd8 27.Rf8) 22.Re7 1–0. pierre – malmen, internet, 2011.

5.Nf3 b5 6.cb5+/– a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nc3 0–0 11.Qa4 (better is 11.Bb2+/–) 11...c5? (better is 11...Qb6+/–) 12.bc5+– dc5 13.Ne5 Bb7 (13...Bd6 14.Ne4 Ne4 15.Qe4+–) 14.f4 Nd5 15.Qe4 Qd6 (15...Bh4 16.g3 Bf6+–) 16.Bc4 Nc3 (16...Rd8 17.0–0+–) 17.Qb7 Bh4 (17...Nb1 18.Ke2 Na3 19.Nf7 Rf7+–) 18.g3 Bg3 (18...Nb1 19.0–0 Qe7 20.Qe7 Be7 21.Rb1 Bf6+–) 19.hg3 Na4 20.Nf7 1–0. pierre – georgheg, internet, 2009.

5.Nf3 Qb6 6.a3 Be7 7.Nc3 Bg4 8.h3 Bh5 9.Be2 e4 10.Ng5 Be2 11.Qe2 d5 12.cd5 cd5 13.Rc1 a6 (better is 13...0–0!?+=) 14.Nd5+/– Nd5 15.Rc8 Bd8 16.Qc4 Kd7?? (better is 16...Ne7 17.Rd8! Qd8 18.Qf7 Kd7 19.Qe6 Ke8 20.Ne4 Qd5 21.Nd6 Kd8 22.Nf7 Ke8 23.Qd5 Nd5 24.Nh8 Kf8+–) 17.Rb8 Rb8 18.Qd5 Kc8 (18...Qd6 19.Qf5 Kc6 20.Nf7 Qd5 21.Qd5 Kd5 22.Nh8 Ke6 23.Bg7 Bf6 24.Bf6 Kf6+–) 19.Qf5 Kc7 20.Qf7 Kc6 21.Ne4 Bc7 (21...Bf6 22.Bf6 Rbe8 23.Qc4 Kd7 24.Nc5 Kc7 25.Bg7 Rhg8 26.Qf7 Kc8 27.Qf5 Kc7 28.Be5 Re5 29.Qh7 Kc8 30.Qg8 Qd8 31.Qg4 Kc7+–) 22.Qe6 Kb5 (22...Bd6 23.Qd6 Kb5 24.Nc3 Kc4 25.Qd5) 23.Nc3 1–0. marekt – jamesxxx, internet, 2014.

5.Nf3 Qc7 6.Be2 Be7 7.a3 0–0 8.0–0 Re8 9.d3 Bg4 10.Nbd2 Nbd7 11.h3 Bh5 12.Rc1 (better is 12.g4!? Ng4 13.Ne1 Nf2 14.Rf2+/–) 12...h6 13.Qc2 Bg6 14.e4 Bf8 15.b5 Qd8 16.a4 Nb8 17.Qb3 Nbd7 18.Qc2 Rc8 19.Qb1 Qa5 20.Qa2 cb5 21.cb5 Nb6 22.Rc8 Rc8 (worse is 22...Nc8 23.Nc4 Qd8 24.a5+=) 23.Ra1 Rc2 24.Nc4?? (better is 24.Qb1 Rc7 25.Qd1+=) 24...Nc4–+ 25.dc4 (25.Bd1 Rb2 (25...Nb2?! 26.Bc2 Qc3 27.Ne1–/+) 26.Qc4 Qb6–+) 25...Re2 26.Rc1 (26.Kf1 Re4 27.Qb3 Nd7–+) 26...Qb4 27.c5 (27.Ba3 Ra2 28.Bb4 Ra4 29.Bd2–+) 27...Rb2 (27...Rb2 28.Qc4 Qc4 29.Rc4 dc5 30.Ne5 Rb1 31.Kh2 Bd6–+) 0–1. Fournier,Frederic (1820) – twister (1740), Active, 2005.

5.Nf3 h6 6.a3 Bg4 7.Be2 e4 8.Nd4 Be2 9.Qe2 d5 10.cd5 cd5 (10...Qd5 11.Nc3 Qg5 12.f3 Qh4 13.g3 ef3 14.Qf3+=) 11.0–0+= g6 (11...Nbd7 12.Rc1+=) 12.Qb5 Qd7 13.Rc1 Qb5 14.Nb5 Na6 15.Bf6 Rg8 16.N1c3 Bg7 17.Nd5 (17.Bg7 Rg7 18.Nd5 Kd8+–) 17...Kd7 (17...Rd8 18.Bd8 Ba1 19.Bf6+–) 18.Rc4 (better is 18.Nbc3 Ke6 19.Bg7 Rg7+–) 18...b6 (18...Ke6 19.Nbc7 Nc7 20.Nc7 Kf6 21.Na8 Ra8 22.Re4 Rc8+–) 19.Rac1 (better is 19.Rd4 Bf6 20.Nf6 Ke6 21.Ng8 Rg8 22.Re4 Kf6 23.Na7+–) 19...Ke6 (19...Bf8+–) 20.Re4 Kd5 21.Re5 1–0. pierre (2145) – arok, chesshere.com, 2007.

5.Nf3 h6 6.Be2 Be7 7.0–0 0–0 8.d3 Nbd7 9.Nbd2 b6 10.a4 Bb7 11.Qc2 c5 12.b5 Ng4 13.h3 (13.a5 a6 14.d4 ab5+=) 13...Ngf6= 14.Nh4 Nh7 15.Nf5 Bf6? (better is 15...a6+=) 16.Nd6+– Qc7 (better is 16...Bc8+–) 17.Nb7 Qb7 18.Bf3 Qb8 19.Ba8 Qa8 20.Nf3 Re8 21.e4 Ndf8 22.Rad1 Nd7 23.Rfe1 Ng5 24.Ng5 Bg5 25.Bc1 Bc1 26.Qc1 Nf6 27.f4 Nd7 28.Rf1 f6 29.Qe3 Nf8 30.Rf3 Ne6 31.fe5 fe5 32.Rdf1 Qd8 33.Rg3 Kh7 34.Rf7 Ng5 (34...Re7 35.Qf2 Kg8+–) 35.Ra7 Rf8 (35...Re7 36.Re7 Qe7 37.Qf2+–) 36.Qe1 (36.a5!? Rf6+–) 36...Qf6 37.a5 ba5 38.Ra5 (worse is 38.Qa5 Qf2 39.Kh2 Nf3 40.Rf3 Rf3 41.Rg7 Kg7 42.Qc7 Kg6 43.Qd6 Kh7 44.Qe7 Rf7 45.Qe5 Rd7+=) 38...Qb6 (38...Qe7 39.Qe3+–) 39.Ra6 Qd8 40.Qa5 (40.h4 Nf7+–) 40...Qe7?? (better is 40...Qd4 41.Kh2 Rf1 42.Rh6 Kh6 43.Rg5 Qg1 (43...Kg5?! 44.Qd2 Kg6 45.Kg3–+) 44.Kg3 Qe3 (44...Kg5?! 45.Qd2 Kf6 46.Qe2–+) 45.Kh2 Qg5 46.Qb6 g6 47.Qg6 Kg6 48.b6 Qf4 49.g3 Qd2) 41.Qb6+– Qf7 42.Qc5 Qf4 (42...Qf1 43.Kh2 Rf2 44.Qe3+–) 43.Qe3 Qf1 44.Kh2 Rf2 (44...Qd1 45.Rg5 hg5 46.Qg5+–) 45.Rg5 hg5 46.Qg5 Qd3 (46...Rf8 47.c5+–) 47.Qh4 (47.Qg6 Kg8 48.Ra8 Rf8 49.Ra7 Qh3 50.Kh3 Rf3 51.gf3 Kf8 52.Qf7) 47...Kg8+– 48.Qf2 (48.Qf2 Qe4 49.b6+–) 1–0. Fournier,Frederic (2015) – eldearriba (1815), Active, 2005.

5.a4 Nbd7

6.b5 d5 7.Nf3 (7.d4 e4+=) 7...e4 (7...Bd6 8.c5 Bc5 9.bc6 bc6 10.Ne5 Ne5 11.Be5+=) 8.Nd4 (8.cd5 ef3 9.dc6 bc6 10.bc6 Ne5 11.Be5 Qd5 12.Qf3 Qe5=) 8...c5 9.Nb3 (9.Nc2 dc4 10.Bc4 Nb6+=) 9...Nb6 (9...dc4 10.Bc4 Nb6 11.Be2+=) 10.Qc2 (10.cd5 Nbd5 (worse is 10...Qd5 11.Bf6 gf6 12.a5+=) 11.Ba3 Bg4+=) 10...dc4 11.Bc4 (11.Nc1 Be6+=) 11...Nc4–/+ (11...Nc4 12.Qc4 Be6–/+) 0–1. Beekes,Noud – Andrade,Daniel, RL–2007–0–00098, 2007.

6.b5 Be7 7.d4+=.

6.d4 Be7+=.

6.g3 Be7 7.Bg2 0–0 8.Ne2 Qc7 (8...e4 9.d3 Ne5 10.de4 Nc4 11.Bc3+=) 9.0–0 Rd8 10.d3 Nf8 (10...d5 11.cd5 Nd5 12.b5+=) 11.Nd2 (11.f4 Ng6=) 11...d5 12.cd5 Nd5 13.Bd5 (13.b5 cb5 14.ab5 Ng6=) 13...cd5 14.Rc1 Qd6 15.Bc3 Bh3 16.Re1 Ng6 17.d4 e4 18.Nf4 Nf4 19.ef4 Qg6 20.Nf1 (20.f3 f5+=) 20...Bg4 21.Qd2 f5 (21...Rac8 22.Ne3–/+) 22.Ne3+= Bf3 23.Rc2 (23.b5 Qe6+=) 23...h5 (23...a6 24.Rec1+=) 24.Rec1 h4 (24...Rac8 25.Bb2 Rc2 26.Qc2 Bb4 27.Qc7=) 25.Qe1 (25.b5 Rac8=) 25...Qh5 26.Qf1 h3 (26...a6 27.b5+=) 27.Qe1 (27.Qb5!? Qf7 28.Qb7+/–) 27...Qf7 (27...a6 28.Bb2=) 28.Bd2 Bd6 (28...Bf6 29.Qf1=) 29.Nf1 (29.Qf1 Bf4 30.Qh3 Be3 31.Be3 Qf8=) 29...Qf6 30.Be3 (30.Ne3 a5=) 30...Qe7 (30...Rab8 31.a5+=) 31.Bd2= Qd7 32.b5 Rac8 (32...Ba3 33.Rc7 Qe8 34.R1c2=) 33.Ne3 Rc2 34.Rc2 Qe6 35.Ba5 Re8 (35...b6 36.Bb4=) 36.Bb4 (36.Bc7 Rc8 37.Qa5 Bc7 38.Rc7 Kh7+/–) 36...Bb8= 37.Ba5 Qf7 38.Qc1 Bh5 (better is 38...b6!? 39.Bb4 Qd7=) 39.Bc7+/– Qe6 40.Bb8 Rb8 41.Rc7 Bf7 42.Qc5 g6? (better is 42...a6+–) 43.Qa7 Qe8 44.Qc5 (44.Rb7 Ra8 45.Qb6 Rc8+–) 44...Qe6 (44...b6 45.Qc3+–) 45.Qc2 (45.b6 Kh8+–) 45...Kg7 (better is 45...Qb6+/–) 46.Qc5 Kg8 47.Re7 (47.b6 Kh8+–) 47...Qc8 (47...Rc8 48.Re6 Rc5 49.Rg6 Kh7 50.dc5 Kg6+–) 48.Rc7?? (48.Qb6 Qc3+–) 48...Qd8?? (48...Qe6 49.b6 Qf6+–) 49.Qa7?? (49.Qb6 Rc8 50.Rb7 Qb6 51.Rb6 Rc1 52.Nf1 Ra1+–) 49...Qe8 (better is 49...Qc7 50.b6 Qc1 51.Nf1 Rc8 52.Qb7 e3 53.Qc8 Qc8 54.Ne3 Be8–+) 50.Rb7+– Ra8 (50...Rc8 51.Qb6+–) 51.Qb6 Qc8 52.Rc7 Qe8 53.Qc5 Qe6 (53...Qd8+–) 54.b6 Ra4 55.b7 Ra1 56.Nf1 Kg7 (56...Rb1 57.Rc8 Be8+–) 57.b8Q Qa6 58.Qcf8 1–0. Benco,Ludovit (1805) – Zvarikova,Alexandra (1830), SVK–chT2C, 2006.

5.Nc3 Bf5

6.d4 Qb6=.

6.Nge2 Bd3 7.Qb3 Nbd7 8.Na4 (8.Ng3 Bf1 9.Rf1 a5 10.ba5 A) worse is 10...Ra5 11.Qb7 d5 12.d4+=; B) 10...Qa5?! 11.f4+= (worse is 11.Qb7 Rb8 12.Qc6 Rb2–/+); C) 10...Nc5+=) 8...Bg6 9.f4 Be7 10.fe5 (10.d4 0–0+=) 10...de5 11.Ng3 (11.d4 ed4 12.ed4 a5+=) 11...h5 (11...0–0 12.d4–/+) 12.Bd3 (12.d4 h4 13.Ne2 ed4 14.ed4 Qc7+=) 12...e4–/+ 13.Bc2 h4 14.Ne2 Nh5 (14...h3 15.g3+=) 15.Nac3 (15.0–0 Nhf6=) 15...Ndf6 16.a4 (16.Nd4 Qc7+=) 16...Qd7 17.b5 Rd8 18.Rd1 Qg4 (18...Bd6 19.0–0+=) 19.0–0= h3 20.g3 Bd6 21.Kh1 Ng3 (21...Be5 22.a5=) 22.hg3 Bg3 23.Bc1 (23.bc6 A) worse is 23...bc6 24.Qb7+= (24.Ng3 Qg3 25.Rg1 Qf3 26.Kh2 Ng4 27.Rg4 Qg4 28.Be4 Be4 29.Rg1 Rd2 30.Ne2 Qe2 31.Rg2 Qg2); B) 23...Be5 24.Rf2 bc6=) 23...Bh5 24.Rf6?? (24.Nd4 Be5 25.Rg1 Qf3 26.Nf3 Bf3 27.Rg2 hg2 28.Kg1 Rh1 29.Kf2 Ng4) 24...Qf3!! (24...gf6 25.Kg1 Bh4 26.Ng3 Qg3 27.Kh1 Bf3) 25.Rf3 Bf3 26.Kg1 h2 27.Kf1 h1Q 28.Ng1 Qg1!! 29.Kg1 Rh1 0–1. Finenko – Terentiev, USSR, 1990.

6.Nf3 Qb6 7.a3=.

6.Nf3 Nbd7 7.Be2 (7.d4 e4 8.Nd2 d5=) 7...Be7 (7...d5 8.cd5 Bb4 9.dc6 bc6 10.0–0=) 8.0–0 h6 (8...Qb6 9.Qb3=) 9.d4 e4 10.Nd2 d5 11.cd5 (11.a3 0–0=) 11...cd5 12.a3 a6 (12...0–0 13.f3=) 13.Qb3 (13.f3 a5 14.fe4 Be4 15.Nde4 de4+=) 13...Be6 14.Rac1 (14.f3 ef3 15.Bf3 Nb6+=) 14...0–0 (14...Rc8 15.Rc2+=) 15.b5 (15.f3 Rc8+=) 15...Qa5= 16.Qa4 (16.f3 ab5 17.Bb5 ef3 (17...Ba3? 18.Ra1+–) 18.Nf3 Rfc8= (18...Ba3? 19.Ra1+–)) 16...Qb6 (16...Qa4!? 17.Na4 ab5–/+) 17.Qb3= Qa5 (17...ab5 18.Nb5 Qa5 19.Bc3=) 18.Qa4 (better is 18.ba6!? ba6 19.f3=) ˝–˝. Melzig,Ernst – Schydlo,Siegfried (1740), Bayern–ch Seniors, 2002.

5.d4 ed4

6.Qd4 d5 7.b5 (7.a3 a5 8.cd5 Nd5=) 7...Be6 (7...Nbd7=) 8.Nc3 (8.cd5 Nd5 9.Nc3 a6+=) 8...Qb6 (8...dc4 9.Qd8 Kd8 10.a3–/+) 9.Nf3 (9.Qb6!? ab6 10.cd5 Nd5 11.Nd5 Bd5 12.a3=) 9...Nbd7 (9...dc4!? 10.Qb6 ab6+=) 10.Be2 (10.Qb6!? Nb6 11.cd5 cd5 12.Nd4=) ˝–˝. Mittelbachert,Ulrich – Reiter,Hans Ernst, Ruhrgebiet VL1, 1998.

6.Qd4 Be7 7.Nf3 0–0 8.Bd3 Bg4 (8...a5 9.b5=) 9.Nbd2 (9.Ng5 h6 10.Nh7 Re8=) 9...Nbd7 (9...a5 10.b5=) 10.0–0 Bh5 (10...Ne5 11.Bc2=) 11.Bf5+= ˝–˝. Kreuzer,Uwe – Baena de Moraes, corr 3GMM–56, 1995.

5.d4 Nbd7

6.Nd2 Qc7 7.a3 Be7 8.Qc2 0–0 9.Ngf3 Re8 10.Be2 Nf8? (10...ed4 11.Nd4 Ne5 12.0–0+=) 11.0–0 (better is 11.de5!? de5 12.Be5+/–) 11...Ng6 12.de5 de5 13.c5 Ng4 14.Bd3 Bf6 15.Rad1 Be6 16.h3 Nh6 17.Rfe1 Rad8 18.Ne4 Be7 19.Nd6! Rd6 (19...Bd6 20.cd6 Passed pawn) 20.Bg6 Rd1 21.Bh7 Kh8 22.Rd1 (worse is 22.Qd1 Kh7 23.Be5 Qd7+=) 22...f6 23.Bd3 Qc8 24.Qa4 a6 25.Qc2 Rd8 26.Nh4 Bf7 27.Ng6 Bg6 28.Bg6 Rd1 29.Qd1 Qd8 30.Qd8 Bd8 31.e4 b5? (better is 31...Ng8+–) 32.Be8 Ng8 33.Bc6 Ne7 34.Bb7 a5 35.Bc3 ab4 36.ab4 Bc7 37.Ba6 Nc6 38.Bb5 Nd8 39.Bc4 Nb7 40.Kf1 g5 41.Bd5 Nd8 42.Ke2 Kg7 43.b5 White intends c6 43...Kf8 44.b6 Bb8 45.c6 Bd6 (45...Nc6 46.Bc6 Bd6+–) 46.c7 (46.c7 Ke8 47.c8Q+–) 1–0. Okeefe,Michael (2190) – Best,Herb (1700), VD–2010–0–00003, 2010.

6.Nd2 e4 =.

6.Be2 Be7 7.Nc3 0–0 8.Nf3 h6 9.0–0 b6 10.b5 c5 11.Nh4 cd4 12.ed4 Bb7 13.Nf5 Rc8 14.Ne7 (14.Ba3 Ne4 15.Ne4 Be4 16.Ne7 Qe7 17.de5 Qg5+–) 14...Qe7+= 15.Ba3 Rfe8 16.d5 (16.Re1 ed4 17.Qd4 Nc5+=) 16...Nc5= 17.Bc5 Rc5 ˝–˝. Wall,Bill – Mano, chess.com, 2009.

6.de5 de5+= 7.a3 a5 8.b5 Qc7 9.Nc3 Nc5 10.Na4 Bg4 11.Nf3 Na4 (11...Bf3 12.gf3 Rd8 13.Qc2=) 12.Qa4= Nd7 13.h3 Bf5 14.Qd1 Rd8 15.Nh4 (15.Qd2 f6+=) 15...Nc5–/+ 16.Qf3 Bd3 17.Rd1 Be7 (17...cb5!? 18.cb5 a4–+) 18.Nf5+= Bf6 19.Bd3 (19.Qg4!? 0–0 20.Be2–/+) 19...Nd3–+ (19...Rd3?! 20.0–0=) 20.Rd3 Rd3 21.Qe4 (21.c5 0–0 22.Nh6 Kh8–+) 21...Rb3 22.Qc2 a4 23.bc6 Qc6 (23...0–0 24.0–0–+) 24.0–0 Qe6 25.e4 0–0 26.Ne3 (26.Rd1!? b5 27.c5–/+) 26...Be7–+ 27.Nf5 Rc8 28.Rd1 (28.Ne7 Qe7 29.Rc1 Qg5–+) 28...Bf8 (28...Ba3 29.Ba3 Ra3 30.Qc1+/–) 29.Rd5 f6 (29...Ba3 30.Ba3 Ra3 31.Qc1+/–) 30.Qe2 g6 (30...Ba3?? 31.Qg4 Qf5 A) 32.ef5?! Rb2 (worse is 32...Bb2 33.Rd7 Rg3 34.fg3 Bd4 35.Kf1 g6 36.fg6 Rc6 37.gh7 Kh8 38.Qg7) 33.Qd1 Ra8+=; B) 32.Qf5+–) 31.Ne3 Ba3 32.Ba3 Ra3 33.Qd2 Ra1 34.Kh2 a3 35.Rd6 Qe7 (better is 35...Qe8–+) 36.Rd7= Qe6 37.Rd6 Qe7 (better is 37...Qe8!?–+) 38.Rd7+= Qe6 (38...Qf8 39.Qd5 Kh8=) 39.Rd6= ˝–˝. Kostrun,Slaven (2305) – Makaj,Marko (2345), CRO–chT2b Croatia, 2009.

5.d4 e4

6.Nc3 Bf5 7.a4 Nbd7 8.Qc2 Ng4 (8...d5 9.b5+=) 9.0–0–0 (9.Nge2!?+=) 9...Be7 (9...Ngf6!?+=) 10.h3= (10.Ne4? Be4 11.Qe2 Ngf6–+) 10...Nh6 11.Nge2 (11.d5 cd5 12.Nd5 0–0=) 11...Nb6 (11...a5 12.b5 Rc8 13.g4+= (worse is 13.Ne4 d5 14.N2g3 Bg6–+)) 12.c5 (12.Ng3 d5 13.c5 Nd7=) 12...Nc4 13.g4 (13.Ba1 a5 14.b5 0–0+=) 13...Nb2+= 14.Kb2 d5?? (better is 14...Bg6+=) 15.gf5+– Nf5 16.Ng3 Nh6 (16...Ng3 17.fg3 b6 18.b5 bc5 19.dc5+–) 17.Ra1 (17.Rg1 Rb8+–) 17...0–0 18.b5 Rb8 19.a5 f5 20.Nge2 cb5 (20...Nf7+–) 21.Nf4 Rf7 22.Bb5 b6 23.ab6 ab6 24.c6 Qd6 25.Nfd5 Bd8 26.Qb3 Kh8 27.Qc4 Ng8 28.Ba6 (better is 28.Kc1 Nf6 29.Nf6 Rf6 30.Nd5+–) 28...Ra7 (28...Nf6 29.Kc2+–) 29.Bb7 (better is 29.Nb5 Qe6 30.Na7+–) 29...Rab7 30.cb7 (30.cb7 Rb7 31.Qb4+–) 1–0. Williams,Barry M – Sullivan,Barney, NZCCA HT corr New Zealand, 1997.

6.d5 Be7 7.Nc3 a5 (7...0–0 8.Qc2 Na6 9.a3=) 8.b5 cb5 9.cb5 Bf5 (9...Nbd7 10.Nge2=) 10.Nge2+= Nbd7 11.Ng3 Bg6 12.Nce2 (12.Be2 0–0=) 12...a4 13.Nf4 Qa5 14.Qd2 Qd2 15.Kd2 0–0 (15...Rc8 16.Rc1 Rc1 17.Kc1+=) 16.Rc1 (16.f3 ef3 17.gf3 Ne5+/–) 16...Bd8 (16...Rfc8 17.Ng6 fg6 18.Be2+=) 17.Be2 (17.f3 Ba5 18.Ke2 Rae8+/–) 17...Ba5+= 18.Kc2 (18.Kd1 Rac8+=) 18...Bb6 (18...Rac8 19.Kb1+=) 19.Kb1 a3 20.Bf6 Nf6 21.Rc2 h6 (21...Rac8 22.Rhc1 Rc2 23.Rc2+=) 22.Ng6 fg6 23.Rhc1 Rae8 24.h3 Nd7 (24...Nd5?? 25.Bc4+–) 25.Rf1 (25.Bc4 Bc5+=) ˝–˝. Plock,Joerg – Luzuriaga,Norberto Horacio, Orang–Utan Invitational, 2002.

5.d4 Bf5

6.Nc3 e4 7.d5 g6 (7...Be7!?=) 8.h3 White terminates the opponent with strong threats 8...Qb6 (better is 8...h5+=) 9.Na4 Qb4 (9...Qd8 10.g4 Bd7=) 10.Bc3 Qa3 11.Bf6 Rg8 12.Qb3 (12.Rb1 Nd7 13.Bd4 c5+–) 12...Qb3 13.ab3 h5?? (13...Nd7 14.Bb2 Bg7+–) 14.Nb6! ab6 Exploits the pin (14...Be7 15.Bd4 c5+–) 15.Ra8 (15.Ra8 Bc8 16.Rb8+–) 1–0. woschkat – dennism, net–chess.com, 2000.

6.de5 de5 7.Qd8 Kd8 =.

5.Be2 Be6

6.Nf3 Na6 7.a3 =+.

6.Nf3 Be7 7.0–0= 0–0 8.d4 e4 9.Nfd2 (9.Ng5 Bf5=) 9...d5 10.Qb3 Na6 (10...dc4 11.Bc4 (11.Nc4? b5–+) 11...Bc4 12.Qc4+=) 11.a3 (11.c5 Nc7=) 11...Nc7 12.Nc3 Nd7 (12...Qd6 13.f3 ef3 14.Rf3=) 13.f3 (13.cd5 cd5 14.f3 Bg5=) 13...Bg5= 14.Na4 (14.Nd1 b5 15.cb5 cb5+– (15...Nb5? 16.f4+–)) 14...dc4 15.Qc3?? (15.Nc4 b5 16.Qc3–+) 15...Nd5–+ 16.Qc1 (16.Qc2 Ne3 (16...Be3?! 17.Kh1 Bd2 18.Qd2–+) 17.Qc3 Nf1 18.Rf1 Nf6–+) 16...Be3 17.Kh1 Qg5 18.Rd1 Nf4 19.Bf1 Bh3! 20.g3 (20.gh3 Qg1) 20...Bf1 21.Rf1 Nd3 22.f4 Nc1 (better is 22...Qb5 23.Nc3 Nc1 24.Nb5 Bd2 25.Bc1 Bc1 26.Nd6–+) 23.fg5 Bd2 24.Bc1 c3 25.Ra2 e3 26.Bd2 (26.Nc5 e2 27.Re1 Be1 28.Re2 Nc5 29.dc5 Rfe8–+) 26...cd2 (26...cd2 27.Nc3 Rae8–+; 26...ed2 27.Nc3 h6 28.gh6 gh6 29.Rd2+=) 0–1. Labahn,Thomas – Hunnefeld,H, Festenburg, 1989.

6.Nf3 h6 7.0–0= Be7 8.d4 e4 9.Nfd2 d5 10.Qb3 0–0 11.Nc3 Ne8 (11...dc4 12.Bc4 (12.Nc4? b5–+) 12...Bc4 13.Qc4=) 12.f3+= f5 (12...ef3 13.Nf3 Nf6 14.Bd3=) 13.cd5 cd5 14.fe4 Bg5 15.Nd5 fe4 16.Bc4 b5? (better is 16...Rf1 17.Rf1 Nd6 18.Nf6 gf6 19.Be6 Kg7+–) 17.Ne7!! Qe7 (17...Be7 18.Be6) 18.Be6 Kh8 (18...Kh7 19.Rf8 Qf8 20.Bd5+–) 19.Bd5 (19.Bd5 Rf1 20.Rf1+–; 19.Ne4 Be3 20.Qe3 Rf1 21.Rf1 Qb4+–) 1–0. Labahn,Thomas – Buschjost,A, Jugend–BEMS, 1989.

5.Nf3 a5

6.a3 ab4 7.ab4 Ra1 8.Ba1 Qb6 9.Bc3 Na6 10.Qb3 Be6 11.Be2 c5 (11...Ne4!?+=) 12.b5 Nb4 13.Bb4 cb4 14.Qb4 Be7 15.0–0 0–0 16.Nc3 d5?? (16...Re8 17.d4+/–) 17.Qb3 (better is 17.Qe7 Re8 18.Qb4+–) 17...d4+= 18.ed4 ed4 19.Na4 Qc7? (better is 19...Qd6!?+=) 20.Nd4+– Rc8 (20...Bd7+–) 21.Ne6 fe6 22.d3 (22.d4 Kh8+–) 22...Bd6 23.h3 e5?? (23...Bh2 24.Kh1 Be5 25.Bf3+–) 24.Bg4 (better is 24.c5 Kh8 25.b6+–) 24...Ng4 25.hg4 Kh8 26.Qc2 Qd7? (better is 26...Bb4+–) 27.f3?? (better is 27.Nb6 Qg4 28.Nc8 Qc8 29.Qe2+–) 27...Qf7 (better is 27...Qb5! 28.Rb1 Qd7+=) 28.Re1+– Qf4 29.Kf2 (29.Re4 Qf8+–) 29...e4? (29...Qd4 30.Kf1+/–) 30.de4 (30.Re4 Qh2 31.d4 Rf8+–) 30...Qg3 31.Kf1 Rd8 (31...Rd8 32.Qf2 Qh2+–) 0–1. Fournier,Frederic (1680) – claudio3 (1650), rated lightning game, 2002.

6.b5= Be7 7.Be2 0–0 8.0–0 Bg4 (8...e4 9.Nd4=) 9.Nc3 Nbd7 10.d4 Kh8 (10...e4 11.Nd2 Be2 12.Qe2=) 11.h3 (11.Qd3 cb5 12.cb5 Rc8+=) 11...Bh5 (11...Bf5 12.Qa4=) 12.g4 (better is 12.Qd3+=) 12...Ng4? (better is 12...Bg6!?=) 13.hg4 (13.Nd2 Nf2 14.Rf2 Be2 15.Qe2 Bf6+–) 13...Bg4 14.de5 (14.Rb1 cb5 15.Nb5 Bf5+/–) 14...de5 15.Nh2 (15.Qc2 f5+/–) 15...Bh3 16.Re1 f5 17.Bf1 (17.bc6 bc6 18.Rb1 Bc5+=) 17...Bf1 18.Rf1 (18.Nf1 Rc8+/–) 18...Rf6 (18...Qe8 19.Kh1+=) 19.Qe2 (19.Qh5 Nb6+=) 19...e4 (19...a4 20.Rad1+/–) 20.Rad1 Rg6 21.Kh1 Bd6 22.f4 ef3 (22...Qh4 23.Qf2 Qh5 24.Ba3+=) 23.Rf3 (23.Qf3 Bh2 24.Kh2 Rh6 25.Kg2 Rg6 26.Kf2 Qh4 27.Ke2 Qc4 28.Ke1 Qh4 29.Kd2 Rf8+=; 23.Nf3?! Rh6 24.Kg1 Rg6 25.Kf2 Bg3 26.Kg2 Bd6 27.Kh1 Rh6 28.Kg1 Rg6 29.Kh1=) 23...Qh4 (23...Rh6 24.Rf2+/–) 24.Qf2 (24.Rf5 cb5 25.Rfd5 (25.Rb5?! Rh6+/–) 25...Bh2 26.Rh5 (26.Qh2?! Qg4 27.Rg1 Qf3 28.Rg2 Nf6=) 26...Qc4 27.Rd7+/– (27.Kh2 Nf6 28.Qc4 bc4–+; 27.Qh2?! Nf6 28.Rh4 Rg4 29.Rg4 Qg4+=; 27.Rh2?! Nf6+/–)) 24...Qc4 25.Rd4 Qe6 26.Ne2 (26.bc6 bc6 27.e4 Bc5 28.ef5 Qe5+–) 26...Nf6 (26...Rh6 27.Ng3 Nf6 28.Rd6 Qd6 29.Nf5 Qd1 30.Qf1 Qf1 31.Rf1 Rg6+=) 27.Nf4= Bf4 ˝–˝. Campora,Daniel Hugo (2550) – Garcia,Pedro J (2280), Benasque op, 1995.

5.Nf3 Bd7

6.a3 Be7 7.Nc3 0–0 8.Be2 a5 9.b5 e4 10.Nd4 c5 11.Nc2+=.

6.a4 e4 (6...Be7 7.Qb3 (7.d4 e4 8.Nfd2 d5 9.b5 0–0 10.bc6 Nc6 11.cd5=; 7.d3 0–0 8.Be2 d5 9.Be5 Bb4 10.Nbd2 dc4 11.0–0=; 7.Nc3 0–0 8.d4 e4 9.Nd2 d5 10.Qb3 Be6 11.Be2=) 7...0–0 8.Be2 Na6 9.d3 Bf5 10.0–0 Re8 11.Nbd2=; 6...c5 7.b5 (7.bc5 e4 8.c6 Nc6 9.Nd4 d5 10.cd5 Nd5 11.Nc3+=; 7.Qb3 e4 8.Ng1 cb4 9.Qb4 Nc6 10.Qb3 Rc8 11.Bf6+=) 7...e4 8.Ng1 d5 9.Bf6 Qf6 10.Nc3 dc4 11.Bc4=) 7.Nd4 c5 8.Nc2 cb4 (8...Bg4 9.f3 ef3 10.gf3 Ne4 11.fg4–/+) 9.Nb4 Qb6 (9...Be7 10.d3 0–0 11.Nd2=) 10.Bf6 Qb4 (10...gf6? 11.Nd5 Qc6 12.Qc2+–) 11.Bc3 Qc5 12.Bd4 Qg5 13.Nc3 Bc6 (13...Nc6 14.Ne4 Qe7 15.Nc3 Nd4 16.Nd5+=) 14.Qb1+/– f5 15.Nb5 Kd7 (better is 15...Qe7!?+/–) 16.Na7+– (16.Ba7?! Na6+/–) 16...Be7?? (16...Na6+–) 17.Nc6 Nc6 18.Qb7 Ke6 19.Qc6 Rac8 (19...Rhc8 20.Qd5 Kd7 21.c5+–) 20.Qd5 Kd7 21.c5 Rb8 22.Bb5 Rb5 23.c6 Ke8 24.Qb5 (better is 24.ab5 Bd8 25.Ra7+–) 24...Qg2 (24...Kf7 25.Qd5 Kg6 26.h4+–) 25.c7 (25.c7 Kf7 26.Qf5 Bf6 27.Rf1+–) 1–0. Lehr,Thomas – Poetzsch,Michael, Koblenz–ch, 1999.

6.Nc3 Be7 (6...e4 7.Nd4 Na6= 8.b5 Nc5 9.d3 a6 10.bc6 bc6 11.de4=) 7.a3 (7.Bd3 0–0 8.0–0 Bg4 9.Be2 e4 10.Nd4 Be2 11.Qe2=) 7...a5 8.b5 0–0 9.e4 Bg4 10.Be2 Nbd7 11.d4=.

6.d3 A) 6...Na6 7.a3 Be7 8.Be2 0–0 9.0–0 b5 10.e4 Nc7 11.Nc3=; B) 6...Be7 7.Bc3 (7.Be2 a5 8.a3 0–0 9.0–0 b5 10.Nc3 ab4 11.ab4=) 7...0–0 8.Be2 Re8 9.0–0 Bf5 10.Nbd2 Nbd7 11.e4=; C) 6...Qb6 7.Bc3 (7.Qd2 Be7 8.Be2 a5 9.ba5 Qa5 10.Qa5 Ra5 11.Bc3=) 7...Na6 8.a3 Be7 9.Nbd2 0–0 10.Be2 c5 11.Qb3=; D) 6...a5 7.ba5 Qa5 8.Bc3 Qa4 9.Qa4 Ra4 10.Be2 b5 11.cb5=.

5.Nf3 Nbd7

6.Nc3 Be7 7.a3 A) 7...Nb6 8.d4 e4 (8...ed4 9.Qd4 Be6 10.Ng5 c5 11.Qh4 cb4 12.Ne6 fe6+=) 9.Nd2 d5 10.c5 Nbd7 11.Be2 0–0 12.0–0 Qc7=; B) 7...a5 B1) 8.Be2 ab4 (8...e4 9.Nd4 ab4 10.ab4 Ra1 11.Qa1 Ne5 12.0–0 0–0=) 9.ab4 Ra1 10.Qa1 Qb6 11.Qa8 0–0 12.Qa3 d5=; B2) 8.b5 0–0 (8...e4 9.Nd4 Ne5 10.bc6 bc6 11.d3 c5 12.Ndb5 ed3=) 9.d4 ed4 10.Nd4 c5 11.Nf5 Ne5 12.Ne7 Qe7=.

6.Nc3 Be7 7.Qb3 0–0 (7...a5 8.b5 Nc5 9.Qc2 Bg4 10.d4 Bf3 11.dc5 Bh5 12.Bd3 dc5=) 8.d4 ed4 (8...a5 9.b5 Re8 10.Be2 cb5 11.cb5 ed4 12.Nd4 Nc5+=) 9.Nd4 Ne5 10.Be2 a5 11.a3 (11.b5 c5 12.Nf3 a4+=) 11...Bd7 (11...ab4 12.ab4 (12.Qb4? c5 13.Qb3 cd4 14.ed4 Nc6–+) 12...Ra1 13.Ba1=) 12.0–0+= Qc7 (12...Re8=) 13.Rac1 Ng6 14.Rfd1 Qb8 15.Qc2 ab4 16.ab4 d5 17.Nf5 (17.cd5!? Bb4 18.dc6 bc6 19.Bd3+=) 17...Bb4 18.cd5 Ba3 (18...Bc3!? 19.Bc3 Bf5 20.Qf5 Nd5=) 19.Ba3+= Ra3 20.d6 (20.dc6 bc6 21.Nd6 Be6+=) 20...Rc3= 21.Nh6 (worse is 21.Qc3 Bf5 22.Rd4 Qe8–/+) 21...gh6 22.Qc3 Nd5 23.Qd2 (23.Qa3 Rd8=) 23...Qd8 (23...f5!?+=) 24.Bf3 Qg5 (24...Be6 25.e4 Ndf4 26.Kh1=) 25.Bd5+= cd5 26.f4 (26.Qd5 Bc6 27.Qg5 hg5+=) 26...Qf5 (26...Qg4 27.Qf2 Qf5–/+) 27.Qd5+/– Qd5 28.Rd5 Bc6 29.Rd3 Rd8 30.Kf2 f5 31.Rc5 Be4 32.Rd4 Nf8 33.Re5 Nd7 34.Re7 (worse is 34.Rde4 fe4 35.Re4 Nc5–/+) 34...h5 35.g3 (worse is 35.Rde4 fe4 36.Re4 Nc5–/+) 35...Bc6 (35...Nf6 36.Ke1=) 36.Ke2 Nf6 37.Re5 Bd7 38.Rb4 b5 39.Kd3 (39.Rd4 Kf8=) 39...Bc8 (39...Ng4!? 40.Rc5 Nh2+=) 40.Rd4= Bd7 41.h3 Kf7 42.Rb4 (42.Re7 Kg6=) 42...Be6 (42...Ne4 43.Re7 Kf6 44.Rd4–/+) 43.Reb5 (43.Rd4 h4 44.gh4 b4+=) 43...Rd6–/+ 44.Rd4 Ra6 45.Rb7 Kg6 0–1. Makowski,Zbigniew – Wocior,Janusz, Rzeszow POL, 1987.

6.Nc3 Be7 7.d4 e4 8.Nd2 d5 9.Qb3 Nb8 10.Be2 Be6 11.0–0 0–0 12.a3 Nbd7=.

6.Nc3 Be7 7.Be2 A) 7...0–0 A1) 8.a3 e4 (8...a5 9.0–0 ab4 10.ab4 Ra1 11.Qa1 Qc7 12.Rc1 Re8=) 9.Nd4 Ne5 10.d3 c5 11.Nc2 ed3 12.Bd3 Bg4=; A2) 8.0–0 e4 9.Nd4 Ne5 10.d3 c5 11.Nc2 ed3 12.Bd3 Bg4=; B) 7...e4 8.Ng5 (8.Nd4 Ne5 9.0–0 c5 10.Nc2 Be6 11.Nd5 Nd5 12.cd5 Bd5+=) 8...d5 9.cd5 cd5 10.a3 0–0 11.d3 h6 12.Nh3 a5=.

6.Be2 Be7 7.0–0 Qc7 8.Nc3 0–0 9.Qb3 Re8 10.d3 Nf8 11.Rac1 h6 12.Nd2 Be6 13.a4 Rad8 14.e4 Qb8 15.Bf3 N6h7 16.g3 Ng5 17.Bg2 Nh3 18.Kh1 Bg5 19.Rc2 Nh7 20.Nf3 Bf6 21.Bc1 Rd7 22.Ng1 Ng1 23.Kg1 Ng5 24.Bg5 Bg5 (24...hg5?! 25.Rb2=) 25.f4 ef4 26.gf4 Bf6 27.f5 Rde7 28.fe6 Re6 29.Ne2 c5 30.b5 Be5 31.Nf4 Rf6 32.Nd5 Bd4 33.Kh1 Rg6 (33...Rf1 34.Bf1 Qd8 35.Rg2+–) 34.Bh3 Qd8 35.Rg2 Qh4 36.Rg6 fg6 37.Bd7 Re5 38.Qd1 Rh5 39.Qe2 Rg5 40.a5 Kh7 41.Qe1 Qh5 42.Nf4 (42.Nf4 Rg1 43.Rg1 Qf3 44.Ng2 Bg1 45.Kg1 Qd3 46.Be6+–) 1–0. Gibbons,Robert (2075) – Kalisch,Tom, Oceania zt Auckland, 2005. (=1.Nf3 Nf6 2.c4 d6 3.e3 e5 4.b4 c6 5.Bb2)

5.Nf3 e4

6.Nd4 d5 7.c5 g6 8.Be2 Bg7 9.Nb3 0–0 10.0–0 Ne8 11.Bg7+= Ng7 12.d3 f5 13.de4 fe4= 14.Nd4 Nf5 15.Bg4 Na6 16.a3 Nc7 17.Nc3 Qf6 18.Nce2 Ne6 19.Ne6 Be6 20.Nd4 Nd4–/+ 21.ed4 Bg4 22.Qg4 Qd4 23.Qg3 Rf7 24.Qe3 Qe3–+ 25.fe3 Raf8 26.Rf7 Rf7 27.Rf1 Rf1 28.Kf1 Kf7 29.a4 b6?? 30.cb6+– ab6 31.a5 Ke7 32.a6 Kd7 33.a7 1–0. hal1958 – Tofik, playchess.de, 2002.

6.Nd4= d5 7.cd5 cd5 8.a3 =.

6.Nd4= d5 7.cd5 Bg4 8.Qc2 (better is 8.f3 ef3 9.gf3+=) 8...Nd5?? (better is 8...cd5 9.a3 a5=) 9.Qe4+– Be6 10.Ne6 fe6 11.Qe6 Be7? (11...Qe7 12.Qc8 Kf7+–) 12.Bg7 Qd7 (12...Nc7 13.Qh6 Rg8 14.Bc4 (worse is 14.Qh7 Qd5 15.Be5 Nba6+–) 14...Rg7 15.Qg7+–) 13.Qd7 Kd7 (13...Nd7 14.Bh8 Nb4 15.Kd1+–) 14.Bh8 Na6 15.Bc3 (15.Bc3 Nab4 16.Kd1+–; 15.Ba6 Rh8 16.Bd3 Bb4+–) 1–0. MrkT – benheng, internet, 2005.

6.Nd4 Be7 7.d3 0–0 8.de4 Ne4 9.Bd3 d5 10.a3 a5 11.Nc3 ab4 12.Ne4 de4 13.Be4 ba3 14.0–0 Ra6 15.Bc1 Nd7 16.Qc2 g6 17.Rd1 Qb6 18.Bd3 Qa7 19.Qc3 Qc5 20.Qc2 Qa7 21.Qc3 Rd8 22.c5 Qc5 23.Qc5 Nc5 (worse is 23...Bc5 24.Ba6 Bd4 25.Rd4+–) 24.Ba6 Na6 (24...ba6? 25.Ba3 Bf8 26.Bc5 Bc5 27.Nc6 Rd1 28.Rd1+–) 25.Rf1 c5 26.Nf3 (26.Ba3? Bf6 (26...cd4 27.Be7 Re8 28.Bg5+=) 27.Nb5 Ba1 28.Ra1 Rd3–+) 26...b5 27.Ba3 b4 28.Bb2 c4 29.Rfc1 c3 30.Bc3 bc3 31.Rc3 Bb7 32.Nd4 Kg7 33.f3 Bf6 34.Rd1 Rd6 35.Rcc1 Bg5 36.Kf2 Rb6 37.g3 Be7 38.Rb1 Nb4 39.Rb3 Ra6 40.Rd2 Ba8 41.Nb5 Ra4 42.h4 Nc6 43.Nc3 Ra5 44.Rb5 Rb5 45.Nb5 Ne5 46.e4 Bc6 47.Nc3 Bc5 48.Kg2 Nc4 49.Rd3 Ne3 50.Kh2 Nc4 51.Kg2 Ne3 52.Kh2 h5 53.Rd8 Bf8 54.Rb8 ˝–˝. Rohde,Friedhelm – Urlau,Thomas, DESC, 2005.

6.Nd4 Bg4 7.Qc2 Na6 8.a3 Be7 9.h3 Bd7 10.Nb3 0–0 11.Nc3 d5 12.d3 Re8 (12...ed3 13.Bd3 dc4 14.Bc4+=) 13.c5 (13.cd5 cd5 14.de4 de4 15.Ba6 ba6 16.Ne4 Bb4 17.ab4 Ne4+=) 13...Bf5 (13...ed3 14.Bd3 Qc8 15.Rd1+=) 14.Nd4 (14.de4 Ne4 15.Ba6 ba6+=) 14...Bg6= 15.de4 Ne4 16.Bd3 Nf2 (better is 16...Bf6!? 17.Ne4 Be4=) 17.Kf2+/– Bh4 18.Kg1 Re3 (18...Qg5 19.Qd2 Bd3 20.Qd3 Re3 21.Qf5+/–) 19.Bg6 hg6 20.Rf1 Qe7 21.Qd1?? (better is 21.Nd1+/–) 21...Rc3!–+ (21...Rc3 22.Qd2 Qe3 23.Qe3 Re3–+) 0–1. Ehrlich,Hans Georg (1910) – Limbach,Renate (1980), Muensterland Verbandsliga, 2004.

5.Nf3 Be7

6.a3 Be6 7.Be2 Qd7 8.d3 d5 (better is 8...a5!?=) 9.cd5 Qd5 10.Nc3 Qd6 11.0–0 (11.Ne4!? Qd8 12.Be5 Ne4 13.de4+/–) 11...Nbd7+= 12.Qc2 Nd5 13.Nd5 Bd5 14.d4 (14.e4!? Be6 15.d4 ed4 16.Nd4+/–) 14...e4= 15.Ne5 f6 16.Nd7 Qd7 17.Bc4 0–0 18.Rac1 Rad8 (18...f5 19.Qc3=) 19.Bd5 (better is 19.Qe4! Bc4 20.Rc4+/–) 19...Qd5= 20.Qc4 Kh8 21.Qd5 Rd5 (worse is 21...cd5 22.Rc7 Bd6 23.Rb7+/–) 22.Rc2 a6 23.Rfc1 Rc8 24.Rc4 h6 25.f3 ef3 26.gf3 Re8 27.e4 Rd7 28.a4 Red8 29.b5 cb5 30.ab5 ab5 31.Rc7 Bd6 32.R7c3 Bf4 33.R1c2? (better is 33.Rd1=) 33...Rd4–+ 34.Rb3 Rd2 (34...Rd1!? 35.Kg2 R8d2 36.Rd2 Rd2 37.Kf1 Rh2 38.Bd4–+) 35.Rd2–/+ Rd2 (35...Bd2?! 36.Rb5 Rd7 37.h4–/+) 36.Rb5 Rh2 37.Rb7 Rc2 38.Rb3 Re2 39.Kf1 Rh2 40.Bd4 Rh1 41.Kg2 Rd1 42.Bb6 Rd2 43.Kf1 Rc2 44.Bf2 Kh7 45.Bd4 h5 46.Rb7 Kg6 47.Rb6 h4 48.Rb3? (better is 48.Rb2 Rc4 49.Rg2 Kh5 50.Bb2–+) 48...h3 49.Kg1 (49.Bg1–+) 49...h2 50.Kf1 (50.Kh1 Rc1 51.Kg2 h1Q 52.Kf2 Qh2) 50...Rc1 (50...h1Q 51.Bg1 Qg2 52.Ke1 Qg1) 51.Kg2 (51.Ke2 h1Q 52.Bg1 Qg2 53.Kd3 Qd2) 51...h1Q 52.Kf2 Qf1 0–1. Fournier,Frederic (1940) – peline (1720), Active, 2005.

6.Nc3 Be6 7.Be2 Nbd7 8.0–0 0–0 9.Ng5 Bf5 10.f4 h6 (better is 10...ef4!? 11.Rf4 Bg6=) 11.fe5+/– Bg6?? (better is 11...de5 12.Rf5 hg5+/–) 12.ef6+– (12.ef6 Bf6 13.Nh3+–) 1–0. miec – gvidon1177, internet, 2009.

6.d3 0–0 7.Be2 a5 8.b5 cb5 9.cb5 a4 10.0–0 Be6 11.Ng5=.

6.d3 a6 7.Be2 b5 8.cb5 ab5 9.a3 Bb7 10.Nbd2 Na6 11.0–0 0–0 12.Nb3 Nc7 13.Na5 Ra7 14.Qc2 Ba8 15.a4 (better is 15.Nc6!? Bc6 16.Qc6+/–) 15...c5 16.ab5 Nb5 17.d4 Bf3 18.Bf3 ed4 (18...cd4 19.Nc6 Qc7 20.ed4 e4 21.Be4 Ra1 22.Ba1 d5+–) 19.Nc6+– Qc7 (better is 19...Ra1!? 20.Nd8 Rf1 21.Kf1 Rd8+–) 20.Na7 Na7 21.ed4 Rc8 (21...c4 22.d5+–) 22.Rfc1 Nb5?! (22...c4 23.d5 Nb5+–) 23.bc5 dc5 24.dc5 Bc5 (24...Rb8 25.Qf5 Nd7 26.Bd5+–) 25.Qf5 (better is 25.Qc5 Qc5 26.Rc5 Nd6 27.Rc8 Nc8+–) 25...Qb6?? (25...Nd6 26.Qf4 Nfe8+–) 26.Qc8 Bf8 27.Ra8 Nd6 28.Qf8 1–0. Fournier,Frederic – leancri, Active, 2005.

6.d3 Be6 7.Be2 (7.a3 a5 8.Be2 Qb6 9.Qa4 0–0 10.0–0 Nbd7 11.Nbd2=) 7...Qb6 8.Bc3 0–0 9.0–0 Re8 10.a4 Qc7 11.Nbd2=.

6.d4 0–0 7.Nc3 (7.Be2 e4 8.Nfd2 d5 9.c5 b6 10.0–0 a5 11.a3+=; 7.a3 e4 8.Nfd2 a5 9.Nc3 ab4 10.ab4 Ra1 11.Qa1=; 7.Nfd2 ed4 8.Bd4 c5 9.bc5 dc5 10.Bc3 Nc6 11.Be2+=; 7.de5 de5 8.Be5 Bb4 9.Nbd2 Ne4 10.Qc2 Bf5 11.Qb2–/+; 7.Qa4 e4 8.Nfd2 d5 9.cd5 cd5 10.Nc3 Qd6 11.a3+=) 7...e4 8.Nd2 d5 9.b5 Be6 10.bc6 Nc6 11.cd5=.

6.d4 ed4 7.ed4 0–0 8.Bd3 d5 9.c5 b6 10.0–0 bc5 11.bc5 Nbd7 12.Nc3 Ng4 13.Qc2 g6 14.h3 Nh6 15.Rfe1 Bf6 16.Ne2 Bg7 17.Ng3 f5 18.Bc1 Nf7 19.Ne2 Nf6 20.Nf4 Qc7 21.Ng5?? Ng5–+ 22.Nd5 Nd5 23.Bg5 f4 24.Bc4 f3 25.g3 Bf5 26.Qb3 Bh3 27.Bd5 cd5–+ 28.Qd5 Kh8 29.Re7 Rad8 30.Qe6?? Be6 31.Rc7 Rd4 32.Ra7? Rfd8 33.Bd8= Rd1?? 34.Rd1+– h5 35.Bg5 Kh7 36.Bf6 Bf5 37.Rg7 Kh6 38.Rd8 g5 39.Rh8 Bh7 40.Rhh7# 1–0. revbodio2 – Paranoid105, Live Game Caissa's Web, 2004.

6.d4 e4 7.Nfd2 d5 8.b5 0–0 9.Nc3 Be6 10.bc6 bc6 11.Be2=.

6.d4 e4 7.Nfd2 d5 8.Nc3 0–0 9.b5 cb5 10.cd5 b4 11.Nce4 Nd5 12.Bc4 Nc6.

6.d4 e4 7.Nfd2 d5 8.Nc3 0–0 9.Be2 Bb4 10.0–0 Bd6 11.f4 Nbd7 12.Qb3 dc4 (12...Qa5 13.g4 Nb6 14.c5 Bg4 15.Bg4 Ng4 16.Rae1+=) 13.Bc4 (13.Nc4 Be7=) 13...Nb6 (13...Qe7!?–/+) 14.Nce4+= Nc4 (14...Ne4 15.Ne4 Nc4 16.Qc4+=) 15.Qc4 (15.Nf6 Qf6 16.Nc4 Be7=) 15...Be6 (15...Re8 16.Nd6 Qd6 17.Qc5+=) 16.Qc2 (better is 16.Qd3 Ne4 17.Ne4+=) 16...Bf5?? (better is 16...Ne4 17.Qe4 Re8+=) 17.Nf6+– Qf6 18.e4 Bg6 (18...Qh6 19.ef5 Bf4 20.Nf3+–) 19.f5 Qh4 (19...Bh2 20.Kh2 Bh5 21.Rh1+–) 20.e5 (20.fg6?? Bh2 21.Kh1 Bg3 22.Kg1 Qh2) 20...Rfe8 (20...Bf5 21.Qf5 Be7+–) 21.fg6 Bb4 (21...hg6 22.ed6 Re2+–) 22.gf7 (22.gf7 Kh8 23.fe8R Re8 24.Ne4+–) 1–0. doda (2070) – Jotisek (1775), Freundschaftspartie, 5m + 0s, 2007.

6.d4 e4 7.Nfd2 d5 8.Nc3 Bb4 9.Rb1 (9.Qb3 Qa5= (9...a5 10.Be2 0–0 11.0–0 Na6 12.cd5 cd5) 10.a3 Be7 11.Be2 Qb6 12.0–0 0–0) 9...0–0+= 10.Qb3 (10.Be2 dc4 (10...Qa5 11.Qb3 Na6 12.a3 Bd6) 11.Nc4 b5+= 12.Nd2 Bf5) 10...Be7 (10...Qa5 11.c5 Nbd7 12.Be2 b5) 11.Be2 (11.h3 Qb6+= 12.Qa4 Qb4) 11...b6 (11...dc4!? 12.Nc4 b5+=; 11...Qb6 12.Ba3 Qb3) 12.0–0= Be6 (12...Na6 13.cd5 cd5 14.f3=) 13.Qc2 (13.Rbc1 h6=) 13...Bg4 (13...Nbd7 14.Qa4=) 14.Bg4 (14.f3 ef3 15.Nf3 Nbd7+=) 14...Ng4+= 15.cd5 (15.h3 Nf6+=) 15...cd5 16.Nde4? (better is 16.Rfc1 Qd7 17.Qb3+=) 16...Nf6?? (better is 16...de4 17.Ne4 Nd7–+) 17.Nf6+– Bf6 18.Qf5 (18.Ba3 Re8 19.Rb5 Nc6+–) 18...Qd7 19.Qd5 (19.Qd7 Nd7 20.Nd5 Rfc8+–) 19...Qd5 (19...Rd8 20.Qd7 Rd7 21.Ba3+–) 20.Nd5 Nd7 21.Rfc1 Rac8 (21...Rfc8 22.e4+–) 22.e4 Rc1 (22...Rfd8 23.g3+–) 23.Rc1 Bd8 (23...b5 24.f3 Rd8 25.Rc7+–) 24.Rc8 (better is 24.Ba3 Re8 25.Rc8+–) 24...f6 (24...Kh8 25.Ra8 a5+–) 25.Ba3 Re8 26.Nc7 Re4 (26...Kf7 27.Ne8 Ke8 28.Bd6+–) 27.Rd8 (27.Rd8 Kf7 28.Rd7 Kg6 29.Kf1+–) 1–0. Nikolaev,Dmitriy – Anikeev,Anatoliy, Chervonny, 2007.

6.d4 e4 7.Ng5 d5–/+ 8.cd5 cd5 9.Bb5 Nc6 10.Qa4 Bd7 11.Nc3 Bb4 12.Bc6 Bc3 13.Bc3 Bc6 14.Qb4 Qd7 15.Kf1 a5 16.Qc5 Bb5 17.Kg1 Rc8 18.Qb6?? Rc3 19.Qa5 Rc2 20.h4 0–0 21.g3 Bc4 22.Kg2 Ng4 23.Nh3 Ne3 24.Kg1 Ng4 25.Nf4 Nf2 26.Rh2 e3 27.h5 g5 28.Ng2 Nh3 29.Rh3 Qh3 (29...Qh3 30.Qd5 Bd5 31.Ne3 Qh1#) 0–1. guest33 – guest509, ICC, 1999.

6.Be2+= a5 7.b5 e4 8.Nd4 d5 9.0–0 0–0 10.d3 dc4 11.de4=.

6.Be2+= Qb6 7.a3 (7.b5 0–0 8.0–0 e4 9.Nd4 a6 10.a4 d5 11.a5=) 7...e4 8.Nd4 a5 9.b5 c5 10.Nc2 Nbd7 11.d3=.

6.Be2 Nbd7 7.0–0 b6 8.Nc3 Bb7 9.Qb3 c5 10.d4 ed4 11.ed4 cd4 12.Nd4 0–0 13.Nf5 Re8 14.Rfd1 d5 15.Nd5 Nd5 16.cd5 (16.Rd5?! Bd5 17.cd5 Bf6=) 16...Bf6 17.Bb5 Rf8 18.Rac1 Bb2 19.Qb2 Nf6 20.Bc6 Rb8 21.d6 Bc6 (21...Kh8 22.b5+–) 22.Ne7 (22.Rc6?! Rb7+–) 22...Kh8 23.Nc6 (23.Rc6?! Ng8 24.Nf5 Qg5+–) 23...Qd7 24.Nb8 Rb8 25.Rc7 Qg4 26.Qc1 Rd8 (26...Re8 27.f3 Qe6 28.d7 Nd7 29.Rdd7+–) 27.d7 (27.d7 Nd7 28.Rdd7+–) 1–0. b4_player – kaller, internet, 2013.

6.Be2+= e4 7.Nd4 c5 8.Nc2 0–0 9.d3 d5 10.bc5 ed3 11.Qd3=.

6.Be2 Bg4 7.0–0 Nbd7 8.d3 0–0 9.Nbd2 b6 10.a3 Rb8 11.Rb1 c5 12.b5 Bh5 13.h3 Bg6 Black prepares the advance e4 14.Nh4 e4? (better is 14...Qc7!?+/–) 15.Ng6+– fg6 16.Ne4 Ne4 17.de4 Ne5 18.Be5 de5 19.Qd8 Rbd8 20.Rbd1 h6 21.Rd5 Bf6 22.Rfd1 Kh7 23.Bf3 h5 24.Rd7 (better is 24.Kf1+–) 24...g5? (better is 24...Rd7!? 25.Rd7 Ra8+/–) 25.a4 (25.Bh5!? Kh6 26.Bg4 Rd7 27.Rd7 Ra8+–) 25...g4 26.hg4 hg4 27.Bg4 Kg6 28.Bf5 Kg5 29.Kf1 Rh8 30.Ke2 Rd7 31.Rd7 Rh2 32.g3 Rh1 33.Ra7 Rc1 (33...Ra1 34.f4 Kh6 35.Rb7+–) 34.Be6 (34.f4!? Kh6 35.Rb7 Bd8+–) 34...Ra1 35.Ra6 Ra2 36.Kf3 Kh5 (36...Bd8+–) 37.Rb6 Ra4 38.Rc6 Be7 (38...Ra7 39.Rc5 Ra1 40.Rd5+–) 39.Rc7 (better is 39.Bf7 g6 40.Rg6 Ra2+–) 39...Bf6 (39...Bf8 40.Rc8 Be7 41.Re8+–) 40.Rc5 Kg6 41.Rc8 Be7 42.b6 Rb4 43.Rc6 Kf6 (43...Kg5 44.Bd5 Bd8 45.Rd6 Bb6 46.Bf7+–) 44.Bd5 Kg5 45.c5 (better is 45.Re6!? Bd8 46.c5 g6+–) 45...Rb5 (45...Bc5 46.Rc5 Rb6 47.Bc4+–) 46.Rc7 Bc5 47.b7 Kf6 (47...Bd6 48.Rg7 Kh5 49.Bc6+–) 48.Rc8 (better is 48.Rc5 Rb1 49.Rc6 Ke7 50.Re6 Kd7 51.Rg6+–) 48...Bd6 49.Rf8 (better is 49.Re8 Kg5 50.Rd8 Bc7+–) 49...Kg6?? (better is 49...Bf8 50.Kg4 Bc5–/+) 50.Rd8+– Bc7 (50...Bc5 51.b8Q Rb8 52.Rb8+–) 51.Rd7 (better is 51.Rc8 Ba5+–) 51...Bb8 52.Rd8 Bc7 53.Rc8 Bd6 (53...Ba5+–) 54.Bc6 (better is 54.Rc6 Kh7 55.Rd6+–) 54...Rb2 55.Bd5 Kf6?? (better is 55...Rb5=) 56.Rh8 1–0. Fournier,Frederic (1890) – clipoi(C) (1760), Active, 2006.

6.Be2 h6 7.0–0 Bf5 8.Nc3 0–0 9.Qb3 Re8 10.Rac1 Nbd7 11.d4 e4 12.Nd2 Bf8 13.a4 White prepares the advance b5 13...Nh7 14.Nd1 Qg5 15.f4 ef3 16.Bf3 Nhf6 17.b5 Rab8 18.Qc3 d5 19.Ba3 c5 20.Ra1 (20.cd5? cd4 21.Qb3 de3–+; 20.Bd5? Nd5 21.cd5 cd4–+) 20...Rbc8 21.cd5 Ne4 22.Ne4 Be4 23.Be4 Re4 24.Qc2 Ree8 25.dc5 Nc5 26.Qf5 ˝–˝. Poenisch,Eckehard (2260) – Schirmer,Raik (2290), Oberliga Ost–A, 2009.

6.Be2 h6 7.d3 0–0 8.0–0 Be6 9.Nbd2 Nbd7 10.a4 b6 11.Qc2 Nh7 12.b5 c5 13.a5 f5 (13...a6 14.ab6 ab5 15.Ra8 Qa8 16.d4+=) 14.ab6+/– ab6 15.Ra6 Qc7 16.Rfa1 Ra6 17.ba6 Ra8 18.d4 Ra7 (18...cd4 19.ed4 Ng5 20.Ng5 Bg5 21.Nf3+/–) 19.d5 Bf7 20.Qf5 Ng5? (better is 20...Nhf8+/–) 21.Ng5+– Bg5 22.Ne4 Bf6?! (22...Nb8+–) 23.Nc3 (23.Nf6?! Nf6 24.f4 Nd7+–) 23...Nb8 (23...g6 24.Qh3 Qb8+–) 24.Nb5 Qd7 (24...Qd8 25.Na7 Be8 26.Qe6 Kh8 27.Nb5 Bb5 28.cb5+–) 25.Qd7 Nd7 26.Na7 e4 27.Bf6 Nf6 28.Nb5 1–0. usingprogram (1995) – patdb, kurnik, 2013.

6.Nc3 0–0

7.a3 a5 8.b5 Nbd7 9.d4 e4 10.Nd2 cb5 11.Nb5=.

7.a3 e4 8.Nd4 c5 9.Nc2 Nc6 10.d3 Bg4 11.Qd2 Bf5 12.de4 Ne4=.

7.Qc2 Bg4 8.Be2 Qb6 9.a3 a5 10.ba5 Ra5 11.0–0=.

7.d3 Na6 8.a3 Nc7 9.Be2 a5 10.0–0 b5 11.Qc2 Bf5 12.cb5 cb5=.

7.d3 Qb6 8.a3 Nbd7 (8...a5 9.b5 Nbd7 10.Be2 d5 11.bc6 bc6 12.Rb1 dc4=; 8...Be6 9.Be2 Nbd7 10.0–0 a5 11.b5 d5 12.Na4 Qc7=; 8...Bf5 9.Be2 Nbd7 10.0–0 a5 11.b5 Rac8 12.bc6 bc6=) 9.Be2 d5 10.cd5 cd5 11.0–0 a5 12.b5 Re8=.

7.d3 Bd7 8.Be2 Qb6 (8...Bg4 9.0–0 Nbd7 10.a3 a5 11.h3 Bh5 12.b5 Qc7=) 9.a3 a5 10.Na4 Qc7 11.c5 ab4 12.Nb6 Ra5=.

7.d3 Nbd7 8.a3 a5 9.b5 d5 10.cd5 cd5 11.Be2=.

7.d3 Nbd7 8.Be2 d5 9.cd5 cd5 10.a3 a5 11.b5 Re8 12.0–0 Qc7=.

7.d3 Be6 8.Be2 Nbd7 (8...Qb6 9.a3 Nbd7 10.0–0 a5 11.b5 d5 12.Na4 Qc7=) 9.0–0 d5 10.a3 a5 11.b5 dc4 12.dc4 Rc8=.

7.Bd3 Qb6 8.a3 a5 9.b5 cb5 10.cb5 Bg4 11.h3 Be6 12.Qc2 h6=.

7.Bd3 Bg4 8.a3 d5 9.cd5 cd5 10.h3 Bf3 11.gf3 a5 12.b5 Qd7+=.

7.Bd3 Bg4 8.Qb3 Qb6 (8...Qd7 9.Qc2 Bf3 10.Bf5 Be4 11.Be4 Ne4 12.Qe4 f5+=) 9.Bc2 Nbd7 10.Ng5 a5 11.ba5 Qa5 12.a3 Nc5+=.

7.Bd3 Bg4 8.Qc2 Bf3 9.gf3 d5 10.a3 Nbd7 11.cd5+=.

7.Bd3 Bg4 8.Be2 e4 9.Nd4 Be2 10.Qe2 d5 11.b5 a6 12.bc6 Nc6+=.

7.Be2 Nbd7 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 Nbd7 7.Nc3 c6).

7.Be2 e4 8.Nd4=+ d5 9.cd5 cd5 10.Qa4 a5 11.b5 Nbd7 12.Qc2 Bc5 =.

7.Be2 e4 8.Nd4 d5 9.cd5 cd5 10.b5 a6 11.d3 ab5 12.de4 de4 13.Qc2 Re8 (13...Qc7 14.Rb1=) 14.Rd1 (14.Ne4? Ne4 15.0–0 Bf6–+) 14...Qa5 15.0–0 Nc6 16.Ne4 Ne4 (< 16...Qa2 17.Ra1 Ne4 18.Bb5+– (18.Qe4?! Bf5 19.Nf5 Qb2 20.Ra8 Ra8+/–)) 17.Qe4 Nd4 (17...Qa2? 18.Nc6 bc6 19.Qe7+–) 18.Rd4 Qa2 ( 18...Be6!? 19.Bd3 g6+/–) 19.Bb5+– Qb2 20.Be8 Be6 21.Bd7 (21.Rb1 Rc8+–) 21...Bf6 22.Rb4 Qa2 23.Be6 (23.Rb7?! Bd5 24.Qb1 Bb7 25.Qb7 Rd8+=) 23...Qe6 24.Qe6 fe6 25.Rb7 (25...h6 26.Rfb1+–) 1–0. MT – guest1163, ICC, 2004.

7.Be2 h6 8.0–0 (8.d3 Be6 9.0–0 Nbd7 10.a3 d5 11.Qc2 Qc7 12.Rfc1 dc4=) 8...e4 9.Nd4 d5 (9...c5 10.Nc2 d5 11.bc5 dc4 12.Bc4 Bg4=) 10.a3 (10.cd5 cd5 11.b5 Bd6 12.d3 Qe7+=) 10...Bd6 (10...a5 11.c5= (11.ba5 c5 12.Nb3 d4=) 11...ab4 12.ab4 Ra1=) 11.cd5+= cd5 12.Rc1 (12.Ncb5 Be5+=) 12...Nc6 (12...Be5 13.d3+=) 13.Ncb5 Qd7 (13...Nd4 14.Bd4 Bb8 15.Qc2+=) 14.Nd6+/– Qd6 15.Nc6 bc6 16.f3 Bf5 (16...a5!?+/–) 17.fe4+– Be4 18.Qa4 Nh7 (18...Rfc8 19.Bf6 gf6 20.Qa6+–) 19.Rc6 Qd7 20.d3 Bf5 21.b5 Rfc8 (21...Rfb8+–) 22.Qd4 Nf6 (22...f6 23.Rf5! Rc6 24.Rd5+– (24.Qd5? Qd5 25.Rd5 Rc2–+)) 23.Rf6 gf6 24.Qf6 Kf8 (24...d4 25.Bd4 Qd4 26.Qd4+– (26.Rf5?! Qe3 27.Rf2 Rc1 28.Bf1 Rf8+=; 26.Qf5?! Qe3 27.Rf2 Rc1 28.Bf1 Qe6+=)) 25.Rf5 (25.Rf5 Qf5 26.Qf5+–) 1–0. marekt – Steve20, ChessWorld.net, 2007.

5.Nf3 Bg4

6.Be2 Na6 7.a3 =+.

6.Be2 Qb6 7.a3 c5 (7...a5 8.b5=) 8.Nc3 (8.Bc3 Nbd7=) 8...a6 (8...Nbd7!?=) 9.bc5+= dc5 (9...Qb2? 10.Na4 Qa1 11.Qa1+–) 10.Na4 Qe6 (10...Qc6 11.Be5 Nbd7 12.Bf6 Nf6 13.Rb1+/–) 11.Ne5+/– Be2 12.Qe2 (worse is 12.Ke2 b5+=) 12...Nbd7 (12...Nfd7 13.Nd7 Nd7 14.0–0+/–) 13.Nf3 (13.Nd7 Nd7 14.0–0 Rb8+/–) 13...Bd6 14.0–0 0–0 15.Rab1 (15.Rfb1 Rab8+/–) 15...Rab8 (15...b5 16.cb5 ab5 17.Nc3+= (worse is 17.Qb5 Rfb8 18.Qe2 Ra4–+)) 16.Nc3 (16.Bf6 Nf6 17.d4 Qf5+/–) 16...Rfe8+= 17.h3 (17.d4 cd4 18.Nd4 Qe5+=) 17...Nh5 (17...Ne5 18.Ne5 Be5 19.Na4+=) 18.Nd5 (18.d4 Qg6 19.Nh4 Qg5+/–) 18...Nf4 (18...Nhf6 19.Nf6 Nf6 20.Rfd1+/–) 19.Nf4 Bf4 20.d4 cd4 (20...Bd6 21.Rfd1+/–) 21.Nd4 Qg6 22.Bc3 (22.Qc2 Bd6 23.Qg6 fg6+–) 22...Be5 23.Qf3 (23.Rfd1 Nb6+/–) 23...Nc5 24.Bb4 Ne4 25.Rfc1 (25.Rfd1 b6+/–) 25...Ng5 (25...Rbd8 26.Ba5 Rd7 27.Rb6+=) 26.Qf5 Qf5 (26...Qh5 27.c5+/–) 27.Nf5 Ne6 (27...Ne4 28.c5+/–) 28.Bd6 (28.Rd1 Bc7+–) 28...Bd6 29.Nd6 Re7 30.c5 (30.Rb6 Nc5+–) 30...Rc7+/– 31.c6! Nd8?? (31...bc6 32.Rb8 Pinning (32.Rb8 Deflection); 31...Rc6 32.Rb7 Deflection) 32.cb7+– Rbb7 (32...Rc6+–) 33.Nb7 Rb7 1–0. Kapas,Robert (1945) – Racz,Gabor, BUD tch Lilienthal, 2012.

6.Be2 e4 7.Nd4 Be2 8.Qe2= d5 9.a3 dc4 10.Qc4 Nbd7=.

6.Be2 e4 7.Nd4 Be2 8.Qe2 Qd7 9.0–0 Be7 10.f3 c5 11.bc5 dc5 12.Nb3 ef3 13.Qf3 Nc6 14.Qg3 (worse is 14.Bf6 Bf6 15.Nc3 Bc3 16.dc3 b6+=) 14...0–0–0 15.Qg7 Rhg8 16.Nc5 Qh3 17.gh3 (17.Bf6?? Bf6 18.gh3 Rg7 19.Kh1 Ba1–+) 17...Rg7 18.Kh1 Rdg8 19.Nd3 (19.Bf6?! Bf6 20.Nc3 Bc3 21.dc3 Ne5+=) 19...Rg5 20.Nc3 (worse is 20.Bf6 Bf6 21.Nc3 Bc3 22.dc3 Rd8+=) 20...Rg2 21.Rad1 Na5 22.Nf4 R2g5 23.d3 a6 (23...Kd7 24.Ncd5 Ne8 25.Ne7 Ke7 26.Nd5 Ke6 27.Bf6+–) 24.Ncd5 Nd5 25.Nd5 (25.cd5?! b5+–) 25...Bd6 26.Rd2 (worse is 26.Rf7 Rg2 27.Be5 Be5 28.Ne7 Kb8 29.Ng8 Rg8 30.Rh7 Rd8+–) 26...Nc6 27.d4 Ne7 28.Nf6 R8g6 29.c5 Bb8 30.d5 Nf5 31.d6 Nh4 32.d7 Kd8 33.Ne4 Rg2 34.Bf6 Rf6 35.Rf6 Rd2 36.Nd2 Kd7 37.Rf7 Kc6 38.Nb3 h5 39.Rh7 Nf3 40.Rh5 Ne5 41.e4 Bc7 42.Nd4 Kd7 43.Rh7 Kc8 44.Ne6 Ba5 45.Kg2 Kb8 46.h4 Ng4 47.Kg3 Nf6 48.Rh8 Ka7 49.Kf4 Nd7 (49...Bc3 50.Kf5 Nd5 51.Rh7+–) 50.c6! Nc5 (50...bc6 51.Rh7 Combination) 51.Nc5 bc6 52.Rh7 Kb6 53.Nd7 Kb5 (53...Kb7 54.Ne5 Kc8 55.Nc6+–) 54.Rh5 (54.Rh5 Kb4 55.Ra5 Ka5 56.h5+–) 1–0. Klein,Mark (1980) – Alves,Terencio (1725), AA/C15/pr/D ICCF, 2012.

6.Be2 Be7 7.0–0 0–0 8.b5 cb5 9.cb5 Qb6 10.a4 a6 11.Qb3 Be6 12.Bc4 Bc4 13.Qc4 ab5 14.ab5 Nbd7 15.Nc3 Rfc8 16.Qb3 Nc5 17.Qd1 Nce4 18.Ne4 Ne4 19.Qe2 Ra1 20.Ba1 Rc5 21.Rb1 Nf6 22.d4+/– Rd5? 23.de5 de5+/– 24.Ne5 Bd6 25.Nc4 Qc7 26.Nd6 Rd6? 27.Be5+– Qc5 28.Bd6 Qd6 29.Rc1 h6 30.e4 Qa3 31.Rd1 Qb3 32.Qd3 Ne4 33.Qb3 (33…Nf6 34.Rd8 Kh7 35.Qd3 g6 36.Qd6 Nd7 37.Rd7 Kg8 38.Qf6 h5 39.Qf7 Kh8 40.Qe8) 1–0. valpa – Holodoc, playchess.de, 2003.

6.Be2 Be7 7.0–0 0–0 8.b5 cb5 9.cb5 Nbd7 10.Ne1 (10.Nc3!?=) 10...Be2+= 11.Qe2 d5 12.d4 (12.Nc3 e4+=) 12...e4–/+ 13.a4 (13.Nc3 Qa5 14.Qd2 Bb4–/+) 13...Nb6 14.Nd2 Rc8 15.a5 Nc4 16.Nc4 Rc4 (16...dc4 17.Ba3–/+) 17.Nc2 Qd7 18.Na3 Rc7 19.Rfc1 Rfc8 20.h3 Rc1 21.Rc1 Rc1 22.Bc1 Qc7 23.Qe1 Ne8 24.Bb2 Bd8 25.a6 (25.Bc3 Qd6 26.Qc1 g6+=) 25...ba6–/+ 26.ba6 Qb6 27.Qe2 Nc7 28.Nb1 Na6 29.Qc2 Nc7 30.Ba3 Qa6 31.Qc1 Ne6 32.Nc3 Qc4 33.Qb2 a5 34.Qb5 Qb5 35.Nb5 Nc7 36.Nc3 f5 37.Bc5 Na6 38.g4 (38.f3 Nc5 39.dc5 Kf7–+) 38...fg4 39.Bd6 (39.Ba3 gh3 40.Nd5 g5–+) 39...gh3 40.Nd5 Kf7 41.Nc3 Ke6 ˝–˝. Van Rooijen,Peter (2065) – Peetoom,Frank (1775), remoteschach.de, 2005.

6.Be2 Be7 7.0–0 Qb6 8.a3 a5 =.

6.Be2 Be7 7.Nc3 Na6 8.a3 0–0 9.h3 Bh5 10.g4 Bg6 11.Nh4 Re8 12.g5 Nd7 13.Ng6 hg6 14.h4 Nc7 15.Bd3 f5? (better is 15...d5!?+=) 16.gf6!+– Bf6 (16...Nf6 17.Bg6 Combination; 16...Bf6 17.Bg6 Combination; 16...gf6 17.Bg6 Combination) 17.Bg6 Rf8? (better is 17...Re6+–) 18.Qh5 Re8 19.Ne4 Nf8 (19...Nb6+–) 20.Bf7 1–0. pcmvr (2850) – croach (2335), net–chess.com, 2011.

6.Be2 Be7 7.d4 e4+= 8.Nfd2 Be2 9.Qe2 a5 (9...d5 10.a3+=) 10.b5 cb5 11.cb5 a4 (11...d5 12.0–0=) 12.0–0 d5 13.Ba3 0–0 14.Rc1 Nbd7 (14...Ba3 15.Na3 Nbd7 16.Rc3=) 15.Rc3 (15.Be7 Qe7 16.Rc7 Rfb8=) 15...Ne8 16.Be7 Qe7 17.Na3 f5 18.Rac1 Nb6 (18...f4 19.ef4 Rf4 20.Nf3=) 19.Ndb1 (19.Qh5 f4+=) 19...g5 (19...f4 20.ef4 Qf6 21.Qe3=) 20.Nc2 (20.Nd2 f4+/–) 20...Rd8 (20...Nc4 21.a3+=) 21.Nd2 Ng7 22.f3 Kh8 (22...Rc8 23.Ne1+=) 23.Ne1 (23.a3 Rc8 24.Nb4 Rc3 25.Rc3 f4+=) 23...Rf7 (23...Rc8 24.R3c2+=) 24.fe4 (24.a3!?+/–) 24...fe4+= 25.Nc2 (25.Qg4 Rdf8=) 25...Rdf8= 26.Rf1 (26.Qg4 Ne6=) 26...h5 (26...Rf1 27.Nf1 Nc4 28.Nd2 Nd2 29.Qd2=) 27.Rf7+= Rf7 28.Ne1 h4 (28...Qf6 29.Nc2=) 29.Rc1 (29.Qg4 Qf6 30.Qe2 h3=) 29...Qa3 30.Rc2 g4 31.Nb1 Qf8 (31...Qb4 32.Nd2 g3 33.hg3 hg3 34.Rc5=) 32.Nd2 (32.Nc3 h3=) 32...g3 (32...Qa3 33.Kh1=) 33.hg3 hg3 34.Qg4 Nf5 (34...Qd6 35.Qh4 Kg8 36.Qg5=) 35.Qf4 (35.Qg6 Rf6 36.Qh5 Qh6 37.Qh6 Rh6+=) 35...Nd7 (better is 35...Qe8=) 36.Qg4?? (better is 36.Qg5=) 36...Ne3–+ Do you see the mate threat? 37.Qh3 Rh7 The mate threat is Qf2 38.Qg3 Nc2 39.Nc2 Qh6 40.Ne3 (40.Qe3 Qh1 41.Kf2 Rh2–/+) 40...Qb6 41.Nf5 (41.Qg5 Nf6 (41...Qb5 42.Qd8 Kg7 43.Qg5 Kf7 44.Nd5–+) 42.Qe5 Rd7–+) 41...Qf6 (41...Qb5!? 42.Qg6 Qb4 43.Qe8 Qf8 44.Qg6–+) 42.Qg4 Nf8 Black gets the initiative 43.Qf4 Rf7 44.Qh2 Nh7 45.g4 Qg5 46.Qg2 (46.Qb8 Rf8 47.Qe5 Nf6 48.Qh2 Kg8 49.Nh6 Kg7 50.Nf5 Kg6–+) 46...Qf4 (46...Kg8 47.a3–+) 47.Nf1 (47.a3 Ng5 48.Qh2 Qh2 49.Kh2 e3 50.Ne3 Rf2 51.Kg3 Rd2 52.Nd5 Rd3 53.Kf2 Ra3–+) 47...Rc7 (47...Nf6!? 48.N5e3–+) 48.Qh3 Rc1 49.N5e3 (49.a3 Rb1–+) 49...Kg8 (49...Qg5 50.Qg3 Kg7 51.Nf5 Kg6 52.a3–+) 50.Nd5 Qd6 51.Nde3 (51.Qe3 Rf1 (51...Qd5?! 52.Qc1 Qd4 53.Ne3=) 52.Kf1 Qd5–+) 51...Ng5 52.Qg2 (52.Qh5 Qg3 53.Kh1 Qe3 54.Qg6 Kf8 55.Qd6 Kf7 56.Qd7 Kf6 57.Qf5 Ke7 58.Qc5 Rc5 59.Ne3 Rb5 60.d5 Rb1 61.Kg2 Rb2 62.Kg3 Ra2 63.d6 Kd7 64.Kf4–+) 52...Nf3 53.Kf2 Ra1 (53...Qd4!? 54.Kg3 Qe5 55.Kf2–+) 54.Nc2 Ra2 55.Nfe3 Qd4 56.Kg3 (56.Kf1 Qd3 57.Qe2 Nh2 58.Ke1 Qe2 59.Ke2 Rb2–+) 56...Qd6 57.Kh3 a3 (57...Qc5!? 58.b6–+) 58.Qe2 (58.Nf5 Qd3 59.Nfe3–+) 0–1. Yevelev,Vladimir – Gelman,Alexander (2375), Moscow–ch op, 1995.

6.Be2 Bf3 7.Bf3 Nbd7 8.d3 Be7 9.Nd2 Rb8 10.a3 0–0 11.0–0 h6 12.Qc2 Nh7 13.e4 Ng5 14.Be2 b6 15.Nf3 c5 16.b5 Nf3 17.Bf3 Nf6 18.Bc1 Nh7 19.Be3 Bg5 20.Qd2 Be3 21.Qe3 f5 22.g3 (22.ef5 Rf5 23.Bd5 Kh8+=) 22...fe4 23.Be4 Ng5 24.f4 Ne4 25.Qe4 ef4 26.Rf4 Qd7 27.Raf1 Rbe8?? (better is 27...Rf4!? 28.Rf4 Re8 29.Qd5 Qe6 30.Qe6 Re6+=) 28.Rf8 (better is 28.Qd5 Qe6 29.Rf8 Kh7 30.Re8 Qe8 31.Qd6+–) 28...Rf8+/– 29.Rf8 (29.Qd5!? Rf7 30.Rf7 Qf7 31.Qd6+/–) 29...Kf8+= 30.Kg2 Kf7 31.h3 Qe6 32.Qe6 Ke6 33.Kf3 Ke5 34.Ke3 g5 35.g4 d5 36.a4 d4 37.Kf3 Kd6 38.Ke4 Ke6 39.Kf3 Ke5 40.Kg3 Kf6 41.Kf3 Ke5 42.Kg3 Kf6 43.h4 gh4 44.Kh4 Kg6 45.Kg3 Kf6 46.Kf4 Ke6 47.Ke4 Kf6 48.Kf4 Ke6 49.Ke4 Kf6 50.Kf4 ˝–˝. Fournier,Frederic – amg51, Active, 2008.

6.Be2 Bf3 7.Bf3 e4 8.Be2 Nbd7 9.0–0 Be7 10.d3 ed3 11.Bd3 Ne5 12.Be2 0–0 13.f4 Ng6 14.Qd4 Re8 15.g4 Bf8 16.Nd2 c5 17.bc5 dc5 18.Qc3 Qe7 19.f5 Nh4 20.Kf2? (better is 20.Rad1+=) 20...Rad8–+ 21.Rg1?? (21.Kg1 Qe3 22.Qe3 Re3 23.Bf6 Rd2 24.Bh4 Ree2 25.Rf2–+) 21...Rd2! 22.Ke1 (22.Qd2 Ne4 Double attack (22...Ne4 Decoy)) 22...Rb2! 23.Qb2 Nf3! 24.Bf3 (24.Kf1 Ng1 25.Kg1 Qe3 26.Kg2 Qe2 27.Qe2 Re2 28.Kf3 Rh2–+) 24...Qe3 25.Kf1 Qf3 26.Qf2 Qd3 27.Kg2 Re2 28.Qe2 (28.Rae1 Rf2 29.Kf2 Ng4 30.Rg4 Qf5 31.Ke3 Qg4–+) 28...Qe2 29.Kh1 Ng4 30.Rg2 Nf2 31.Kg1 Nh3 32.Kh1 Qf3 33.f6 Nf4 0–1. Plock,Joerg – Horvath, Magdeburg, 1991.

6.Be2 Bf3 7.Bf3 Be7 8.d3 Nbd7 9.Nd2 0–0 10.0–0 h6 11.a3 Nh7 12.Be2 Ng5 13.Nf3 Nf3 14.Bf3 Nf6 15.h3 Nh7 16.d4 Bf6 17.de5 de5 18.Qc2 Ng5 19.Be2 Qd7 20.Rad1 Nh3? (better is 20...Qe7+=) 21.gh3 (21.Kh2!? Qc7 22.Kh3 a5+–) 21...Qh3 22.Bf3?? (22.Qe4 Rfd8+–) 22...Qe6?? (better is 22...Qf3 23.e4 a5–+) 23.Qe4+– Rad8 24.Rd8 Rd8 25.Rd1 Rd1 26.Bd1 Bg5? (26...Qd6 27.Bb3+–) 27.Bc2 (better is 27.Bg4!? Qe7 28.Qe5 Bf6 29.Qe7 Be7+–) 27...f6 28.Qh7 Kf8 29.Qe4 h5?? (29...Kg8 30.Bd3 Kf8+–) 30.Bd1+– h4 31.Bg4 Qd6 32.Kg2 (better is 32.Qh7!?+–) 32...Qd2+/– 33.Qf5 Qb2?? (33...g6 34.Qg6 Qd6+–) 34.Qc8 Kf7 35.Be6 (35.Qd7 Kf8 36.Be6 Qf2 37.Kf2 Be3 38.Ke3 g5 39.Qf7) 35...Kg6 36.Qe8 Kh7 37.Qh5 (37.Bf5 g6 38.Qg6 Kh8 39.Qh7) 37...Bh6 38.Bf5 g6 39.Qg6 Kh8 40.Qh6 (40.Qh7) 40...Kg8 41.Be6 1–0. Fournier,Frederic – amg51, Active, 2008.

6.h3 Bd7 7.Nc3 Be7 8.d4 e4 9.Nd2 d5 10.b5 Be6=.

6.h3 Bf5 7.Be2 Be7 8.0–0 0–0 9.Nc3 Nbd7 10.a3 d5=.

6.h3 Bh5 7.Nc3 Qb6 8.a3 Be7 9.Be2 0–0 10.0–0 a5=.

6.h3 Bh5 7.Nc3 Be7 8.g4 Bg6 9.Nh4 Nbd7 10.Ng6 hg6 11.Bg2 Nf8 (11...Rb8 12.f4=) 12.b5+= White begins to deal mighty blows 12...Qb6 13.Rb1 Ne6 14.bc6 bc6 15.Qa4 Rc8 16.Ba1 Qc7 17.Nd5 Qd7 18.Ne7 Ke7 19.Qa3 Rb8 (better is 19...Ke8!?+=) 20.Rb8+/– Rb8 21.Be5 Nc5 (21...Rb1 22.Ke2 Rh1 23.Bh1+–) 22.0–0 (22.0–0 Rb6 23.d4+–) 1–0. Woelfelschneider,Peter – Arnold, 2009.

6.Be2 Nbd7

7.0–0 Be7 8.a3 b5 9.cb5+= cb5 10.Bb5 a6 11.Ba4 0–0 12.d4 ed4 13.Bd4+/– d5 14.Nc3 Rc8 15.Rc1 Ne4 16.Nd5+– Bd6 17.Bd7 Rc1+/– 18.Qc1 Qd7 19.Nb6 Qd8 20.Nd2 Bf5 21.Ne4 Be4 22.Bc5 Qg5? 23.f3 Bc5 24.Qc5 Bb7 (24...Qc5 25.bc5 Bd3+–) 1–0. Conveyor – pinski, ChessWorld.net, 2005.

7.a3 Qc7 8.0–0 Be7 9.h3 Bf5 10.d3 e4 (10...0–0 11.e4 Be6 12.Qc2=) 11.de4+= Ne4 12.Nbd2 0–0 13.Ne4 Be4 14.Bd3 Nf6? (14...Bd3 15.Qd3 Bf6 16.Bf6 Nf6 17.Rfd1+=) 15.Be4 (15.Bf6 Bf3 16.Qf3 (16.gf3?! Bf6 17.Rb1 Rfe8=) 16...Bf6 17.Qf5+–) 15...Ne4+= 16.Qd4 Bf6 17.Qe4 Bb2 18.Ra2 Rfe8 19.Qg4 Bf6 20.Rd1 g6 21.Rad2 Rad8 22.Ng5 (22.Qg3 Re6+/–) 22...Re5 (22...Qe7 23.h4=) 23.Nf3 h5 (better is 23...Ree8!?=) 24.Qg3 Re4 25.Ng5?? (better is 25.c5+/–) 25...Rc4+= 26.Rd6?? (better is 26.Nf3 h4 27.Qh2+=) 26...Rd6–+ 27.Rd6 (27.Qd6 Qd6 28.Rd6 Rc1 29.Kh2 Be5 30.f4 Bd6 31.Ne4–+) 27...Bg5 (better is 27...h4 28.Qh4 Rh4 29.Rf6–+) 28.Rd3 (better is 28.Rg6! Kh7 29.Qc7 (29.Rg5?! Qg3 30.Rg3 Rc3+/–) 29...Kg6 30.Qb7+–) 28...Qg3–+ 29.fg3 Re4 30.Kf2 Re7 31.h4 Bh6 32.Kf3 Kg7 0–1. Fournier,Frederic (1895) – delacuenca (1850), Active, 2004.

7.d3 d5 8.a3 Be7 (better is 8...Bd6!?=) 9.Ne5+/– Be2 10.Qe2 0–0 11.0–0 Re8 12.Nd2 Ne5 13.Be5 Bd6 14.Bb2 Qc7 (better is 14...Bc7!?+/–) 15.Bf6+– Bh2 (15...gf6 16.c5 Bh2 17.Kh1 Be5+–) 16.Kh1 gf6 17.g3 f5 (17...Bg3 18.Rg1+–) 18.Kh2 Re6 (18...Qd6 19.Rh1+–) 19.cd5 cd5 20.Qh5 Kg7 (20...f4 21.gf4 Qc6 22.Rg1 Kf8 23.Kg2+–) 21.Qf5 Rf6 22.Rac1 Qd6 23.Qg4 Rg6 24.Qd4 Kg8 25.Kg2 b6 26.Rh1 f6 (26...Rd8 27.Nf3+–) 27.Rc7! h6 (27...Qc7 28.Qd5 Double attack) 28.Rh6! Rh6 (28...Rh6 29.Qg4) 29.Qg4 Kf8 30.Qg7 Ke8 31.Qg8 1–0. marekt – Mengs, ChessWorld.net, 2004.

7.d4 ed4 8.Bd4 Be7 (8...c5 9.Bc3=) 9.0–0+= 0–0 10.Nbd2 d5 11.Qb3 Qc7 12.Rac1 (12.cd5 Nd5 13.b5 Bd6=) 12...a5 (12...Bd6 13.cd5 Nd5 14.Bc4=) 13.Bf6 (13.cd5!? Bb4 14.Bc4+=) 13...Nf6 14.cd5 Nd5?? (14...Bb4 15.Bc4 Rad8+=) 15.Qd5!+– Bb4 (15...cd5 Exploits the pin 16.Rc7) 16.Rfd1 Rad8 (16...Be6 17.Qg5+–) 17.Qc4 c5?? (17...Be6 18.Qc2 Rfe8+–) 18.Qg4 (18.Qg4 Qe7 19.Bc4+–) 1–0. Geyer,Ulf – Ensel,Michael, RLPF–ch U15 Germany, 1989.

7.d4 e4 8.Nfd2 Be2 9.Qe2=.

7.h3 Bf3 8.Bf3 Qb6 (8...e4 9.Be2=) 9.Qb3 a5 (9...e4 10.Be2=) 10.ba5 Ra5 11.Nc3 (11.d4 e4 12.Be2 Qb3 13.ab3 Ra1 14.Ba1 d5=) 11...Be7 (11...Qb3 12.ab3 Ra1 13.Ba1=) 12.0–0 0–0 (12...d5 13.cd5 cd5 14.d3+= (worse is 14.Nd5 Nd5 15.Bd5 Rb5 16.Bf7 Kf8–/+)) 13.d4 (13.Rfb1 Rfa8=) 13...Rfa8 14.Rfd1 (14.Rfe1 Ra2 15.Qa2 Ra2 16.Ra2 ed4 17.ed4 Bf8=) 14...Qc7 (14...R8a7 15.Qc2=) 15.Rd2 (15.Rab1 R8a7=) 15...Nb6 (15...R8a6 16.Rb1=) 16.c5 (16.Rb1 ed4 17.Rd4 Nbd7=) 16...Na4 (16...dc5 17.de5 c4 18.Qc2 Re5 19.Ne4 Ne4 20.Be4=) 17.Na4 Ra4 18.cd6 Bd6 (18...Qd6 19.Qb7 e4 20.d5 ef3 21.Qc6–+) 19.de5+= Be5 20.Be5 (20.Rad1 R4a5+=) 20...Qe5 21.Rb1 R4a7 22.Qb6 Attacks the backward pawn on b7 22...g6 (22...Qe7!?=) 23.Rd8+/– Rd8 24.Qa7 (worse is 24.Qd8 Kg7=) 24...Ne4 25.Be4 Qe4 26.Qb7 Rd2 (26...h6 27.Rc1+/–) 27.Rb4 (27.Qc8 Kg7 28.Rb8 Rd1 29.Kh2 Qe7+/–) 27...Qd5 (27...Qf5 28.Rf4 Qe6 29.a4+/–) 28.a4 (28.Qe7 Kg7 29.a4 Ra2+/–) 28...Kg7 29.Qe7 (29.Qc7 Qf5 30.Qg3 Qf6+/–) 29...Rd1 (29...Ra2 30.Rd4 Qe6 31.Qe6 fe6 32.f4+/–) 30.Kh2 Ra1 (30...Rd2 31.Rf4+/–) 31.Rd4 (better is 31.Rb8 Ra4 32.Re8+–) 31...Qf5? (31...Qe6 32.Qc5 Ra2 33.Rd8 Rf2 34.Qf8 Kf6 35.Rd6 Qd6 36.Qd6 Kg7 37.Qc6+–) 32.Rf4 (better is 32.Rd8 Ra4 33.f4 Rf4 34.ef4 Qf4 35.Kg1 Qc1 36.Kf2 Qf4 37.Ke2 Qc4 38.Kf3 Qc3 39.Kf4 Qc1 40.Kg3+–) 32...Qe6+/– 33.Qe6 fe6 34.Rc4 Kf6 35.Kg3 Ra3 36.Kg4 (36.h4 h6+/–) 36...Ra2 37.h4 (37.Rf4 Kg7+/–) 37...h6 (37...Rf2 38.Rf4 Rf4 39.Kf4+/–) 38.g3 (better is 38.h5!?+/–) 38...Rf2+= 39.Rf4 Rf4 40.Kf4 e5?? (better is 40...Ke7+=) 41.Ke4+– (41.Ke4 Ke6 42.a5+–) 1–0. Fahrner,Kurt – Ebner,Hibert, Graz–A, 1993.

6.Be2 h6

7.0–0 e4 8.Nd4 (8.Ne1 Be2 9.Qe2 d5 10.cd5 cd5 11.a3 a5 12.f3=) 8...Be2 9.Qe2= d5 10.cd5 Qd5 11.f3 ef3 12.Rf3+=.

7.0–0 Nbd7

8.a3 e4 (8...Be7) 9.Ne1 (9.Nd4 Be2 10.Qe2 Ne5 11.Nc3 Nd3 12.Rab1=; 9.Nh4 Be6 10.d3 Ne5 11.Be5 de5 12.de4=) 9...Be2 10.Qe2 d5 11.d3 Bd6 12.Nd2=.

8.Na3 e4 9.Ne1 (9.Nd4 Be2 10.Qe2 Ne5 11.Bc3 d5 12.Nf5+=; 9.Bf6 Nf6 10.Nd4 Be2 11.Qe2 c5 12.bc5+=) 9...Be2 10.Qe2 d5 11.Nec2 a5 12.b5+=.

8.a4 e4 9.Nd4 (9.Ne1 Be2 10.Qe2 d5 11.cd5 cd5 12.Nc2=) 9...Be2 10.Qe2 Ne5 11.f3 Nd3 12.fe4=.

8.Bc3 Be7 9.d3 (9.a4 0–0 10.d3 Qc7 11.Nh4 Be6 12.f4=; 9.a3 0–0 10.d4 e4 11.Nfd2 Be2 12.Qe2=; 9.h3 Be6 10.a4 0–0 11.a5 d5 12.c5=; 9.d4 e4 10.Nh4 Be6 11.f4 Nb6 12.Nd2+=; 9.Qe1 Qc7 10.Nh4 Be6 11.f4 ef4 12.ef4=; 9.Nh4 Be6 10.d4 0–0 11.Nf3 e4 12.Nfd2=) 9...0–0 10.Nbd2 Qc7 11.Nh4 Be6 12.f4=.

8.Nc3 Be7 (8...d5 9.cd5 (9.c5 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1=) 9...cd5 10.a3 a5 11.Qb3 Be6 12.d4=; 8...e4 9.Nd4 (9.Ne1 Be2 10.Qe2 d5 11.cd5 cd5 12.a3=) 9...Be2 10.Qe2 Ne5 11.f3 c5 12.Nc2=) 9.a3 (9.h3 Bh5= 10.a3 Nb6 11.d3 0–0 12.Nd2=; 9.Rc1 0–0 10.d4 e4 11.Nd2 Be2 12.Qe2=; 9.b5 0–0 10.d4 cb5 11.Nb5 a6 12.Nc3=; 9.d3 0–0 10.a3 Re8 11.Nd2 Be6 12.f4=; 9.d4 e4 10.Nd2 Be2 11.Qe2 d5 12.b5=; 9.a4 d5 10.cd5 cd5 11.Qb3 Be6 12.d4=) 9...Qc7 (9...Nb6 10.d3= Be6 11.Nd2 Qd7 12.a4+=; 9...e4 10.Nd4 Be2 11.Qe2 Ne5 12.Rab1+=) 10.Nh4 (10.d4 Bf5 (10...0–0+= 11.e4 Rfe8 12.h3+=) 11.d5 0–0 12.Bd3=) 10...Be2 (10...Be6 11.Qc2= Nb6 12.Nf5=) 11.Qe2+= 0–0 (11...g6 12.Nf3+=) 12.Nf5 Bd8 (12...Rfe8 13.e4+=) 13.Qd3+/– Nh7 (13...Nb6!?+/–) 14.Nd6 (14.e4 a5+/–) 14...Ndf6 (14...Nhf6 15.e4+/–) 15.f4 (15.c5 Be7 16.Ne2 Rfd8 17.Be5 Ne8+/–) 15...ef4 16.ef4 Be7 (16...Qd7 17.Qd4+/–) 17.Nf5 Rfd8 18.Qg3 (worse is 18.Ne7 Qe7 19.Qe3 Qe3 20.de3 Rd2+/–) 18...g6 (18...Nh5 19.Qf3 N5f6 20.Rae1+–) 19.Nh6 Kg7 (19...Kf8 20.Rad1+–) 20.Nf5 Kh8 (20...Kf8 21.Ne7 Qe7 22.d3+–) 21.Ne7 Rd2 22.Bc1 Rc2 (22...Rd7 23.Ng6! fg6 24.Qg6+–) 23.Qd3 Rc1 24.Ng6! (worse is 24.Rfc1 Qe7 25.Re1 Qc7+–; worse is 24.Rac1 Qe7 25.Rfe1 Qc7+–) 24...fg6 25.Rac1 Rd8 (25...a5 26.c5+–) 26.Qg6 Qb6 (26...c5 27.b5+–) 27.c5 Qc7 (27...Qa6 28.a4+–) 28.Rcd1 (28.Rce1 Rg8 29.Qf5 Qg7+–) 28...Rd1 (28...Rg8 29.Qf5+–) 29.Rd1 Qe7 30.f5 (30.Qg3 Nf8+–) 30...Qe3 31.Kh1 Qe7 32.Qg3 Nf8 33.Qd6 (33.Re1 Qh7 34.Ne4 Nd5+–) 33...Qg7 34.Rd3 Ng4 (34...Qf7+–) 35.Rg3 Nf2 (35...Kh7 36.Qf4 Nd7 37.Qg4 Qg4 38.Rg4+–) 36.Kg1 (36.Kg1 Ng4 37.h3+–) 1–0. pierre – alsocamed, internet, 2009.

8.d3 A) 8...Be7 9.Nbd2 (9.Nc3 0–0 10.a3 d5 11.Rc1 a5 12.b5=; 9.h3 Be6 10.Nbd2 0–0 11.a4 Re8 12.a5=; 9.a3 a5 10.Nc3 ab4 11.ab4 Ra1 12.Qa1=; 9.Qd2 0–0 10.h3 Be6 11.Nc3 a5 12.b5=; 9.Nfd2 Be6 10.d4 Qb6 11.a3 0–0 12.Nc3=; 9.a4 a5 10.b5 0–0 11.Nbd2 Re8 12.Bc3=) 9...0–0 10.Bc3 Qc7 11.h3 Bf3 12.Bf3=; B) 8...a5 9.b5 (9.a3 Qb6 10.Nc3 Be7 11.b5 0–0 12.Rb1=) 9...cb5 10.cb5 Be7 11.Nbd2 0–0 12.Rc1=; C) 8...Qb6 9.a3 (9.Bc3 Be7 10.a4 0–0 11.Nbd2 Qc7 12.e4=; 9.Qb3 Be7 10.Nc3 0–0 11.a3 a5 12.b5=; 9.Qd2 Be7 10.a4 a5 11.b5 0–0 12.Nc3=) 9...a5 10.Nc3 d5 11.cd5 cd5 12.Qb3=.

8.d4 e4 9.Nfd2 (9.Nh4 Be2 10.Qe2 d5 11.c5 g6 12.f3+=) 9...Be2 10.Qe2 d5 11.b5 Rc8 12.bc6=.

7.0–0 Be7

8.a3 A) 8...Nbd7 9.Nc3 (9.d4 e4 10.Nfd2 Be2 11.Qe2 d5 12.f3=; 9.Nd4 ed4 10.Bg4 Ne5 11.Bh3 de3 12.de3+=) 9...e4 10.Nd4 Be2 11.Qe2 Ne5 12.f3=; B) 8...a5 9.Nc3 (9.b5 0–0 10.Nc3 Nbd7 11.d4 Re8 12.e4=; 9.d3 0–0 10.Nc3 Nbd7 11.b5 d5 12.d4=; 9.h3 Bd7 10.d4 e4 11.Nfd2 ab4 12.ab4=; 9.d4 e4 10.Nfd2 Be2 11.Qe2 ab4 12.ab4=) 9...ab4 10.ab4 Ra1 11.Ba1 e4 12.Nd4+=; C) 8...Be6 9.Nc3 (9.d4 e4 10.Nfd2 d5 11.Nc3 0–0 12.cd5=) 9...a5 10.d4 ab4 11.ab4 Ra1 12.Qa1+=; D) 8...Qc7 9.Nc3 Nbd7 10.d4 0–0 11.e4 Rfe8 12.h3+=; E) 8...Qd7 9.Nc3 Qe6 10.Rc1 0–0 11.d4 a5 12.b5+=; F) 8...Na6 9.Nc3 0–0 10.d4 e4 11.Nd2 Bf5 12.Rc1+=; G) 8...Qb6 9.Nc3 Nbd7 10.d4 e4 11.Nd2 Be2 12.Qe2+=; H) 8...0–0 9.Nc3 (9.d4 e4 10.Nfd2 Be2 11.Qe2 d5 12.Nc3=; 9.h3 Be6 10.Nc3 a5 11.b5 cb5 12.Nb5=) 9...Nbd7 10.d4 Re8 11.Qd3 ed4 12.Nd4=.

8.Nc3 0–0 9.a3 (9.d3 Nbd7 10.a3 d5 11.Rc1 a5 12.b5=; 9.h3 Bf3 10.Bf3 d5 11.cd5 Bb4 12.a3=; 9.b5 a6 10.bc6 Nc6 11.d4 Rc8 12.Rc1=; 9.d4 e4 10.Nd2 Be2 11.Qe2 d5 12.a3=) 9...Nbd7 10.d4 Re8 11.Qd3 ed4 12.Nd4+=.

8.Nc3 Qb6 9.a3 Nbd7 10.d4 e4 11.Nd2 Be2 12.Qe2+=.

8.Nc3 Qd7 9.e4 Na6 10.b5 cb5 11.cb5 Nc5 12.d4=.

8.Nc3 Nbd7 9.a3 0–0 10.d4 Re8 11.Qd3 ed4 12.Nd4=.

8.Nc3 e4 9.Nd4 Be2 10.Nce2 d5 11.cd5 Qd5 12.Nc3=.

8.Nc3 e4 9.Nd4 Be2 10.Qe2 d5+=.

8.d4 ed4 9.Nd4+= Be2 10.Qe2 Qd7 (10...0–0 11.Nf5+=) 11.Rd1 0–0 12.Nc3 Na6 13.b5 Nc5 14.Qf3 Rac8 15.Rd2 (15.Nf5 Qe6+/–) 15...Rfd8 (15...Ng4 16.Qf5 Rfe8 17.Qd7 Nd7 18.Nf5=) 16.Rad1 Qc7 (16...Ng4 17.Nb3 Nb3 18.ab3+=) 17.Nf5+/– Ne8 (17...Qd7 18.Qf4+/–) 18.Ne2 (18.bc6!? bc6 19.Qc6 Qc6 20.Ne7 Kf8 21.Nc6 Rc6+/–) 18...Bf8 19.Qg3 Kh7 20.Rd4 (20.Qg4!?+=) 20...Ne6 (20...g6 21.Nh4 Bg7 22.Nf3–/+) 21.Rh4 (21.R4d2 Nc5 22.Nc3 g6+=) 21...d5 (21...cb5 22.Nc3 bc4 23.Nd5+/–) 22.Qg4 (better is 22.cd5 Rd5 23.Rd5 Qg3 24.Nfg3 cd5 25.Ra4=) 22...dc4–/+ 23.Rc1 (23.Nc3!?–/+) 23...cb5–+ 24.Nh6 (24.Ned4 Qa5 25.Ne6 fe6 26.Nh6 gh6 27.Qe4 Kg8 28.Qe6 Kh7 29.Rg4 Rd1 30.Rd1 Ng7 31.Bg7 Qe1 32.Re1 Rc6 33.Qf5 Rg6 34.Qg6 Kg8 35.Bh6 Bg7 36.Qg7) 24...gh6 25.Qf5 Kg8 26.Qg4 N6g7 27.Rh6 Qd7 28.Qd7 Rd7 29.Nd4 (29.Bd4 Ba3 30.Rc2 b4–+) 29...b4 30.Rh4 c3 31.Ba1 a5 32.Rg4 Nf6 33.Rg5 Rd5 (33...Bc5 34.Nf5 Nfe8 35.Nd4–+) 34.Rg3 (34.Rd5 Nd5 35.Kf1 Ne6–+) 34...Ne4 (34...Bc5 35.Nb3–+) 35.Rg4 Nc5 36.f4 (36.h4 f5 37.Rg6 Kh7–+) 36...f5 37.Rg5 (37.Rg3 Nd3 38.Rc2 Nf4–+) 37...Kf7 (37...Ne4 38.Rg6–+) 38.g4 Nce6 (better is 38...Ne4 39.gf5 Ng5 40.fg5 Nf5 41.Rf1–+) 39.Ne6 Ne6 40.Rf5 Rf5 41.gf5 Nc5 42.Rc2 Kf6 43.Rd2 (43.Bc3 bc3 44.Rc3 Kf5 45.Kf1–+) 43...Kf5 44.Rd5 (44.Rc2 Nd3 45.Kf1 Bc5–+) 44...Ke4 45.Re5 Kf3 (45...Kf3 46.Rg5 c2 47.Rg3 Ke4–+) 0–1. Furlong,Kevin – Kuehne,Werner, Bayern–chI Bank Hofmann 2nd, 1998.

8.d4 e4 9.Nfd2 Be2 10.Qe2= d5=.

5.Nf3 g6

6.d4= e4 7.Nfd2 d5 8.Qb3 Bg7 (8...Bd6 9.cd5 cd5 10.Nc3=) 9.Nc3 0–0 10.a4 (10.cd5 cd5 11.Rc1 Bg4=) 10...Be6 11.b5 (11.cd5 Bd5 12.Nd5 cd5+=) 11...dc4 12.Bc4 Re8 (12...Bc4 13.Nc4 cb5 14.Qb5=) 13.Be6 (13.bc6 bc6 14.Qb7 Nbd7=) 13...Re6 14.Qc2 (14.bc6 bc6 15.Qc2 c5=) 14...Qe8 (14...cb5 15.ab5 Qe7 16.d5+/–) 15.0–0 ˝–˝. Ferreiro,Fulgencio – Olaizola Ortega,Luis (2350), San Sebastian op, 1995.

6.Be2 Bg7 7.0–0 0–0 8.d3 Nbd7 9.a4 b6 10.Nbd2 Bb7 11.Qb3 c5 12.b5 Re8 13.e4 Nf8 14.Rad1 Ne6 15.Rfe1 Nd4 16.Nd4 ed4 17.Qc2 Nd7 18.Nf1 Ne5 19.f4 Nd7 20.Bg4 Nf6 21.Bh3 Bc8 22.Bc8 Rc8 23.Qf2 Rc7 24.h3 Rce7 25.Bc1 Ne4 26.de4 Re4 27.Re4 Re4 28.Ng3 Re7... Brzoza – Horbanowicz, corr Poland 1980–81.

4.e3 Nc6

5.a3 a6 6.Nf3 h6 7.Be2 Be7 8.d3 0–0 9.0–0 Re8 10.Nbd2 Bf8 11.e4 Be6 12.Qc2 Qd7 13.Rfd1 Rad8 14.d4 ed4 15.Nd4 Nd4 16.Bd4 Qc6 17.f3 b5? (better is 17...Be7!?+=) 18.Rac1+/– bc4 19.Nc4 Bc4 (19...Be7!?+/–) 20.Bc4 Qb7 21.Bf6 gf6 22.Qb3 Re7 23.Bd5 Qb6 24.Kh1 a5 25.ba5 Qb3 26.Bb3 Ra8 27.Rd5 Re5 28.Rc7 Ra5 29.Re5 (29.Ra5 Ra5 30.Bf7 Kh8+–) 29...fe5 30.Bf7 Kh8 31.Rc3 Kg7 32.Bd5 Kf6 33.g3 Be7 34.Kg2 Bd8 35.Bc6 (35.Rb3!? Ra7+–) 35...Bb6 36.a4 Bd4 37.Rc4 Bc5 (37...Be3 38.Bb5+–) 38.Bb5 Ra7 39.Kf1 Ra5 40.Rc2 Ra7 41.Ke2 Ra5 42.Kd3 Ra7 43.Kc4 Ke6 44.Bc6 Rc7 45.Bd5 Kf6 46.Kb5 Ra7 47.a5 Bg1 48.a6 Bc5 49.Bb7 Ke7 (49...Be3+–) 50.Rc5 dc5 51.Kc5 Ke6 52.Kb6 (52.Kb6 Ra6 53.Ka6+–) 1–0. Fournier,Frederic – Vinorosso, Partie amicale, 2007.

5.a3 Ne7 6.Nf3 Ng4 7.h3 Nf6 8.Be2 Nf5 9.0–0 a6 10.Nc3 h6 11.d4 ed4 12.Nd4 Nd4 13.ed4 d5 14.c5 b6 15.Re1 bc5?? (15...Be7 16.Qa4 Bd7 17.Qc2+=) 16.dc5 (16.Bb5) 16...d4?? (better is 16...Be7+/–) 17.Bb5 1–0. Fournier,Frederic (1730) – juanezz, Active, 2006.

5.a3 Bf5 6.Nf3 a5 7.b5 Na7 8.a4 b6 9.Be2 Be7 10.d4 0–0 11.0–0 e4 12.Nfd2 c5 13.dc5 dc5 14.Nc3 Qc7 15.Qc2 Can e4 get defended? (15.g4 Bg6 16.g5 Ne8 17.Nde4 Rd8+=) 15...Bd6 16.g3 h5?? (better is 16...Be5=) 17.Nde4+/– h4?? (17...Ne4 18.Ne4 Be5 19.Bd3+/–) 18.Bd3 (better is 18.Nf6 gf6 19.Qf5 Qc8 20.Qf6 Qd8+–) 18...hg3?? (18...Ne4 19.Ne4 Be5 20.Be5 Qe5 21.Nf6 Qf6 22.Bf5+/–) 19.hg3 (19.Nf6 gf6 20.Bf5 gh2 21.Kh1 Rfe8+–) 19...Nh5?? (better is 19...Ne4 20.Nd5 Qd7 21.Be4 Be4 22.Qe4 Rab8+–) 20.Nd6 Ng3 (20...Bd3 21.Qd3 Rad8 22.Nce4+–) 21.fg3 (21.Nf5!? Nf5 22.Bf5 Qd6+–) 21...Qd6 22.Bf5 Qg3 23.Qg2 Qe3 (23...Qg2 24.Kg2 Rfe8 25.Nd5+–) 24.Rf2 Rae8 (24...Qh6 25.Rf3 Rad8 26.Ne4+–) 25.Raf1 (better is 25.Qh2 f6 26.Qh7 Kf7 27.Bg6 Ke6+–) 25...Re5 (25...Qh6 26.Rf3 g5 27.Nd5+–) 26.Qh3 (26.Nd5 Qh6 27.Be5 Rd8+–) 26...Rf5 (26...Qh3 27.Bh3 Rg5 28.Kh2 f6+–) 27.Qf5 (27.Qe3 Rf2 28.Kf2 Nc8 29.Nd5 f5 30.Rg1 Rf7 31.Qe8 Kh7 32.Qf7 f4 33.Qg7) 27...Qg3 28.Rg2 Qe3 29.Qf2 (better is 29.Kh1 Qh6 30.Rh2 Qg6+–) 29...Re8 (29...Qf2 30.Rff2 Re8 31.Ne4+–) 30.Qe3 (30.Rg7 Kf8 31.Rf7 Kg8 32.Ne4 Qf2 33.R1f2 Rb8 34.Rg7 Kh8 35.Rh2) 30...Re3 31.Nd5 Rb3 32.Rg7 Kf8 (32...Kh8 33.Rff7 Rb2 34.Rh7 Kg8 35.Nf6) 33.Rff7 Ke8 34.Re7 (34.Nf6 Kd8 35.Rg8) 34...Kd8 (34...Kf8 35.Rgf7 Kg8 36.Nf6 Kh8 37.Rh7) 35.Rg8 1–0. Fournier,Frederic (1915) – miguel2515 (1700), Active, 2005.

5.a3 Bg4 6.f3 Bf5 7.Ne2 Be7 8.Ng3 Bg6 9.Be2 Qd7 10.Nc3 h6 11.b5 Na5 12.Qa4 b6 13.0–0 h5 14.Nge4 h4 15.h3 Nh5 16.Nd5 Bd8 17.d4 ed4 18.ed4 Be4 (better is 18...a6!?+/–) 19.fe4+– Bg5 (19...Nf6 20.Rae1 0–0 21.Bf3+–) 20.Bg4 Qd8 21.Bc3 0–0? (21...Nb7+–) 22.Bh5 (22.Ba5?! Ng3 23.Bc3 Nf1 24.Rf1 Re8+–) 1–0. Janek – Gerard, internet, 2016.

5.b5 Bg4 6.f3 Bh5 7.bc6 e4? 8.Bf6 Qf6 9.cb7 (9.cb7 Rb8 10.Qa4 Kd8 11.Qa7 Rb7 12.Qa8 (< 12.Qb7 Qa1 13.c5 ef3+–) 12...Kd7 13.Nc3+–) 1–0. pcmvr (2560) – dgrecu, net–chess.com, 2006.

5.Nf3 Be7 6.Be2 Be6 7.b5 Na5 8.d3 0–0 9.0–0 a6 10.a4 c6 11.Nc3 ab5 12.ab5 cb5 13.Nb5+= d5 14.Ne5 dc4 15.Nc4 Nc4 16.dc4 Ne4 17.Nd4 Bf6 18.Ne6 fe6 19.Qd8 Rad8 20.Bf6 Rf6 21.Rfd1 Rd1 22.Rd1 Rf2 23.Bf3 Rd2= 24.Rd2 Nd2 25.Bb7 Nc4 26.Kf2 ˝–˝. Raimondi – QueenAmyitis, internet, 2005.

5.a3 d5

6.cd5 Qd5 7.Nf3 Bg4 8.Be2 e4 9.Nd4 Be2 10.Qe2 Nd4 11.Bd4 Be7 12.Nc3 Qg5 13.g3 (better is 13.0–0 Qf5 14.Qc4+/–) 13...Nd5?? (better is 13...Qf5=) 14.Ne4 (better is 14.Qb5 c6 15.Qb7+–) 14...Qg6 15.d3 (15.Qb5 c6 16.Qb7 0–0+–) 15...Bf6 (15...0–0 16.0–0+/–) 16.Bf6 (16.Nf6!? Nf6 17.Qf3 0–0–0 18.Bf6 gf6+/–) 16...Nf6+/– 17.Nf6 Qf6 18.d4 0–0 19.0–0 Rae8 (19...c6 20.Rac1+/–) 20.Qc4 (20.Qb5!? Qf3 21.Qd7+–) 20...c6+/– 21.Rac1 Qf3 22.Qc2 Re4 23.Qd1 Qf6 24.Qd3 Rg4 25.f3 Rg6 26.e4 Qh4 27.Kg2 Qe7 28.f4 White intends e5 28...Qd7 29.e5 f5 30.Rcd1 Qd5 31.Qf3 Qa2 32.Rf2 Qc4 33.Rfd2 Rd8 34.Qd3 (34.d5!? cd5 35.Rd5 Rd5 36.Qd5 Qd5 37.Rd5 Ra6+–) 34...Qd5 35.Kf2 h5? (better is 35...Qf7+/–) 36.Qf5+– Rh6 37.Ke3 Rf8 38.Qe4 Qb3 39.Rd3 (39.Rd3 Qc2 40.Qh1+–) 1–0. Fournier,Frederic (1665) – juanchoxx, Active, 2007.

6.Nf3 e4!? 7.Ne5 Ne5 8.Be5 Bg4 9.Qa4 Qd7 =.

6.Nf3 Be7 7.Ne5+= Ne5 8.Be5 0–0 9.d4 Ne4 (9...Be6!? 10.Qc2 Bd6 11.Bf6 Qf6+/–) 10.Bd3 Bf5 (10...c6 11.Qc2+–) 11.Qc2 Qd7 (11...Bg6 12.cd5 Qd5 13.f3 (13.Qc7 Rac8 14.Qe7 Rc1 15.Ke2 Rh1–/+) 13...Bh4 14.Ke2+–) 12.Nd2 f6 13.Bg3 (13.Bf4!? c6+–) 13...Ng3+/– 14.hg3 Bd3 15.Qd3 f5 16.cd5 Qd5 17.Qb3. Fournier,Frederic (2180) – Castro,Sandrine, Active Senlis FRA, 2005.

5.a3 Be6

6.Nc3 g6 7.Nf3 Bg7 8.d4 ed4 9.Nd4 Nd4 10.Qd4 0–0 11.Be2 Ng4 12.Qd2 Ne5 13.Nd5 c6 14.f4 cd5 (14...Nc4!? 15.Bc4 Bb2 (15...cd5?! 16.Bg7 Kg7 17.Bd5=) 16.Qb2 cd5–/+) 15.cd5+= Bd5 (15...Bf5!? 16.fe5 Rc8+=) 16.Qd5+= Nd3 17.Qd3 Bb2 18.Ra2 Bf6 19.0–0 Qe7 (19...Rc8 20.Rc2=) 20.Bf3 Rac8 21.Re1 Rc3 22.Qd2 Rfc8 The backward pawn on e3 becomes a target 23.Bd5 Re8 24.e4 Qc7 25.g3 h5 26.Kg2 Rc8 27.Qf2 b5 28.Ree2 h4 29.a4? (better is 29.gh4!? Qe7 30.Rec2+=) 29...Qd7–/+ 30.ab5? (30.f5 hg3 31.hg3 Be5–/+) 30...h3–+ 31.Kg1?? (better is 31.Kh1 Bd4 32.Qf1 Qb5 33.Qh3–+) 31...Rc1 32.Re1 Bd4?? (32...Qb5 33.Rd2 Bd8–+) 33.Qd4= Re1 34.Kf2 Rcc1 35.Qf6 (better is 35.Ra7 Rf1 36.Ke3 Rfe1 37.Kf3 Rf1 38.Ke3 Rfe1 39.Kf3 Rf1 40.Ke3=) 35...Qc7?? (35...Rf1 36.Ke3 Rce1 37.Kd4 Rd1 38.Kc4 Qc7 39.Kb3 Rf3 40.Ka4 Rd5 41.ed5 Qc4–+) 36.Qg6+/– Kf8 37.Qh6 Ke7 (37...Kg8 38.Qh3 Rf1 39.Qf1 Qb6 40.Kg2 Rf1 41.Kf1 Qb5 42.Kg2 Qb4 43.Ra7 Qb2 44.Kf3 Qc3 45.Kg4 Qg7 46.Kh4 Qh6 47.Kg4 Qg7 48.Kh5 Qg6 49.Kh4 Qh6 50.Kg4 Qg7=) 38.Qg7 1–0. Basanko,Viktor – Bilyk,Evgeny, Pyatigorsk RUS, Stavropol Open, 2012.

6.Nf3 Be7 7.Be2 0–0 8.0–0 Ne4 9.d3 Bc4?? (better is 9...Nf6+=) 10.dc4+– Nf6 11.Nbd2 d5 (11...Re8 12.Bd3+–) 12.Ne5 dc4 (12...Ne5 13.Be5 a5 14.Qb3+–) 13.Nc6 bc6 14.Bc4 Ng4 (14...c5 15.b5+–) 15.Nf3 (better is 15.Qg4 Bf6 16.Bf6 Qf6+–) 15...Qd1 16.Rfd1 Rad8 17.h3 Rd1 18.Rd1 Rd8 (18...Nf6+–) 19.Rd8 Bd8 20.hg4 Bh4 (20...c5+–) 21.Nh4 1–0. Fournier,Frederic (1900) – miguel2515 (1725), Active, 2005.

6.Nf3 Bg4 7.Be2 Be7 8.d3 0–0 9.0–0 a6 10.Nbd2 h6 11.h3 Bh5 12.e4 Nh7 13.Nh2 Be2 14.Qe2 Nd4 15.Bd4 ed4 16.Nhf3 c5 17.Rfe1 b6 18.e5 de5 19.Qe5 (19.Ne5!? Bd6 20.Nc6=) 19...Bd6= 20.Qd5 Nf6 21.Qf5?? (21.Qb7 Qb8 22.Qb8 Rab8=) 21...Qc8 (better is 21...g6 22.Qf6 Qf6–+) 22.Qc8= Rac8 23.Ne4 Be7 (23...Ne4 24.Re4 Rfe8 25.Rae1 Re4 26.Re4=) 24.Nf6 Bf6 25.Re4 Rfe8 26.Rae1 Kf8 27.Re8 Re8 28.Re8 Ke8 29.Nd2 Be7 30.b5 ab5 31.cb5 f5 (31...Kd7 32.Nc4 Bd8 33.f4=) 32.a4 (32.Nc4!? Bd8 33.Nd6 Ke7 34.Nf5 Kf7 35.Nd6 Ke6 36.Nc4+/–) 32...Kd7= 33.Nc4 Kc7 34.g3 Bf6 35.f4 g5 36.fg5 hg5 37.Kf2 Bg7 38.Kf3 Bf6 39.Nd2 Bg7 40.h4 gh4 41.gh4 Bh6 42.Nc4 Bg7? (better is 42...Bc1+/–) 43.Kf4+– Bf6 44.h5 Bg7 45.Kf5 Bh6 46.Kg6 Bf4 47.h6 Bh6 48.Kh6 Kb7 49.Kg6 Kc7 50.Kf6 Kb7 51.Ke6 Kc7 52.Ke7 Kb7 53.Kd7 Ka7 White now must not overlook the idea Nd6 54.Kc7 Ka8 55.Kb6 (55.Nb6 Ka7 56.Nc8 Ka8 57.b6 c4 58.b7) 55...Kb8+– 56.Kc5 1–0. Fournier,Frederic – jancalos, Active, 2008.

5.a3 Be7

6.Nc3 Bf5+=.

6.Nf3 0–0 7.Be2 (7.b5 Na5+=) 7...e4–/+ 8.Nd4 Nd4 (8...Ne5!?–/+) 9.Bd4+= Bf5 10.Nc3 c6 11.0–0 d5 (11...Nd7 12.Na4+=) 12.Qb3 Qc7 (better is 12...dc4!? 13.Bc4 Qd7=) 13.cd5+/– Ng4 (better is 13...a5!?+/–) 14.Bg4+– Bg4 15.Rac1 Bd6 16.h3 Bh3? (16...Bf5+–) 17.gh3 Rfe8 (17...Qd7 18.Kg2 (worse is 18.Ne4 Qh3 19.f4 Rfe8+–) 18...Qf5 19.f4+–) 18.f4 g5 (18...a5+–) 19.dc6 gf4 (19...Re6 20.Nd5 Qc8 21.fg5 bc6 22.Nf6 Kf8 23.Ne4+–) 20.Nd5 Qc8 (20...Qd8 21.Nf6 Qf6 22.Bf6 b5 23.ef4 e3+–) 21.Nf6 Kf8 22.Nh7 Kg8 23.Nf6 Kf8 24.Nd7 Ke7 25.Bf6 1–0. b4_player – anony, internet, 2014.

6.Nf3 Bg4 7.Be2 0–0 8.d3 Nd7 (8...Qd7 9.0–0=) 9.Nbd2 (9.Ne5 Be2 10.Nc6 Bd1 11.Nd8 Rfd8 12.Kd1 d5 13.cd5 a5+/–) 9...f5 10.h3 Bh5 11.0–0 Nf6 12.Nh2 Be2 13.Qe2 e4 14.de4 fe4 15.Rac1 d5 (15...Qe8!?=) 16.cd5 Qd5 17.Rfd1 Rad8 18.Ng4 Qd3 (18...Ne8!?+=) 19.Nf6 Bf6 20.Qd3 Rd3 21.Bf6 Rf6 22.Ne4 Rd1 23.Rd1 Rf8 24.Rd7 (24.Nc5 a5 25.ba5 Na5+–) 24...Ne5? (better is 24...Rf7 25.Rf7 Kf7+–) 25.Rc7 Nd3 (25...Rf7 26.Rc8 Rf8 27.Rc5+–) 26.Rb7 1–0. Fournier,Frederic – Guest1010557, Partie amicale, 3m + 1s, 2008.

5.b5 Na5

6.Qa4 c6 =.

6.Bc3 b6 7.Ba5 ba5 8.Qa4 Ne4 (8...Be7 9.Qa5 0–0 10.Nf3=) 9.d3+= (9.Qa5 Qh4 10.g3 Ng3 11.fg3 Qe4=) 9...Nc3?? (better is 9...Nc5 10.Qa5 a6+=) 10.Nc3+– Be7 11.Nd5 0–0 (11...Rb8 12.Be2+–) 12.Qa5 (worse is 12.Ne7 Qe7 13.Qa5 Bb7+–) 12...Bb7 13.Qc7 (13.Nc7?! Rc8+–) 13...Qc7 14.Nc7 Rac8 15.Na6 (15.Nd5 Bd5 16.cd5 Rc5+–) 15...Ba6 16.ba6 Bf6 (16...Rb8 17.d4+–) 17.Ne2 e4 (17...Rc6 18.Rb1+–) 18.d4 Rc4 19.Ng3 Ra4 (19...Rcc8 20.Ne4 Bd4 21.Rd1+–) 20.Ne4 Ra6 (20...Be7+–) 21.Nf6 gf6 22.Ba6 d5 23.Rb1 1–0. Bonetti,Shane – guest511, ICC, 2002.

6.Bc3 c6 7.Qa4+/– b6 8.bc6 Qc7 (8...Bf5 9.Ba5 ba5 10.c7 Qd7 11.Qa5+/–) 9.Ba5 b5?? (better is 9...ba5 10.Nc3 Be7+/–) 10.cb5+– (10.cb5 Qe7 11.Nc3+–) 1–0. Bonetti,Shane – guest493, ICC, 2002.

6.d3 Be7 7.Nf3 0–0 8.g3 b6 9.Bg2= Nb7 10.Nbd2 Nc5 11.Nb3 Bf5 12.Nc5+= dc5? 13.Ne5+– Rb8 14.Nc6 Qe8 15.Nb8 Qb8 16.0–0 Rd8 17.e4 Bg6 18.Qe2 Bh5 19.f3 Nd7 20.Rab1 Bf6 21.Bf6 Nf6 22.a4 Qc8 23.e5 Nd7 24.Bh3 Qb8 25.Rfe1 Qb7 26.g4 Bg6 27.Rbd1 a6 28.Bg2 Qa7 29.f4 ab5 30.f5 Bf5 31.gf5 ba4 32.e6 fe6 33.fe6 Nf6 34.e7 Re8 35.Bc6 a3 36.Be8 Ne8 37.Rf1 a2 38.Rf8 1–0. coloplayah (1925) – rsuzukovich (1885), net–chess.com, 2005.

6.d3 Be7 7.Nf3 Bg4 8.h3 Bf3 9.Qf3 d5 (9...a6!?=) 10.Be5+/– Bb4 11.Nd2 dc4 12.Bf6 gf6 13.Qe4 Qe7 14.Qe7 Be7 15.dc4 0–0–0 16.0–0–0 Ba3 17.Kc2 Bb4 18.Bd3 Kb8 19.Nb3 Nb3 20.ab3 (better is 20.Kb3 Be7+–) 20...Rhg8? (better is 20...Rd6+–) 21.Bh7 Rg2 (21...Rh8+–) 22.Rd8 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

6.Bc3 c5=.

6.Be2 a6 7.d4 ed4 8.Bd4=.

6.Be2 Ne4 7.d4 (7.d3 Nc5+=) 7...Qf6 (7...Qg5 8.g3 ed4 9.Bd4=) 8.Nf3 Bg4 (better is 8...Qg6!? 9.Rg1 ed4 10.Bd4 a6+=) 9.de5 de5 10.Be5 Qf5 (10...Qe7!? 11.Bd4 Rd8+/–) 11.Bc7 Bb4 12.Nbd2?? (better is 12.Kf1 Bf3 13.gf3+– (13.Bf3?! Nc4 14.Qa4 Ned2 15.Nd2 Nd2 16.Ke2 Nf3+/–)) 12...Bd2–+ 13.Nd2?? (better is 13.Kf1 Rc8 14.Ba5 Ba5 15.Qd5–+) 13...Qf2 0–1. Trkn – Dennis, itsyourturn.com, 2000.

6.Be2 Be6 7.Qa4 c6 =.

6.Be2 Be6 7.Qc2 c5 (7...d5 8.d3 d4 9.ed4 ed4 10.Nf3=) 8.bc6 (8.Nf3 h6=) 8...bc6 9.Qa4 (9.d4=) 9...Be7 (9...Ne4 10.Ba3 Qb6 11.Qc2+=) 10.Nf3 (10.Bc3 Nb7 11.Qc6 Qd7 12.Qd7 Bd7+/–) 10...0–0 (10...Qb6 11.Bc3 Nb7 12.d4=) 11.d3 (11.Bc3 Nb7=) 11...Qb6+= 12.Bc3 Nb7 13.Bb4 (13.d4 e4 14.Ng5 Bf5+=) 13...c5 (13...a5 14.Bc3+=) 14.Bc3= Bd7 15.Qc2 a5 16.a4 (16.Na3 Qc6=) 16...Nd8 (16...Rfb8 17.Na3=) 17.Nbd2 (17.0–0 Nc6=) 17...Nc6 18.0–0 Rab8 19.Rfb1 Nb4 20.Qc1 Bf5 21.Bb4 (21.Nh4 Be6=) 21...cb4+= 22.Ne1 (22.Rb3 Rfc8+=) 22...d5 23.cd5 (better is 23.Nef3 Qe6 24.Rb3–/+) 23...Rfc8 (better is 23...Nd5 24.Nc4 Qc7–/+) 24.Nc4= Qb7 25.f3?? (25.e4!? Ne4 26.de4 Be4 27.Qe3 Bb1 28.Rb1 Qd5 29.Nb6 (worse is 29.Ne5 Bd6 30.Nc4 Rc4–/+) 29...Rb6 30.Qb6+=) 25...Bg6 (better is 25...Nd5!? 26.Qb2 Qa7 27.Qe5 Be6–+) 26.e4–/+ Nh5 (26...Bc5 27.Kh1 Qc7 28.Rb3=) 27.Nc2 (27.Kh1 Qc7=) 27...Bc5 28.N2e3 (28.Kf1 Qc7=) 28...Nf4–/+ 29.Kf2 (29.Bf1 Bd4 30.Rb3 Qd7+=) 29...Bd4 30.Qd1 (30.Ra2!?–/+) 30...Ba1 (30...Qe7 31.g3 Rc4 32.dc4 Be3 33.Ke3 Qc5 34.Kd2 Qd4 35.Bd3 Qd3 36.Ke1 Qc3 37.Qd2 Qf3 38.gf4 Qh1 39.Ke2 Qh2 40.Kd1 Qg1 41.Qe1 Qd4 42.Qd2 Qc4 43.Ke1–+) 31.Ra1 b3 (better is 31...Qc7–+) 32.Nd6 Qc7 (32...Qb6 33.Nc8 Rc8 34.Rb1 Ng2 35.Rb3 Qe3 36.Kg2=) 33.Nc8= Qc8 34.Nc4 Qc7 (34...Qc5!? 35.Kf1 f6=) 35.Rb1+= f5 (35...Qc5 36.Kf1 Ne2 37.Ke2 Qb4+/–) 36.Rb3+/– fe4 (36...Rb4!? 37.Rb4 ab4+–) 37.de4 (37.Rb8 Qb8 38.de4 Qb4+–) 37...Ne2 (better is 37...Rc8 38.Bf1 Be8+–) 38.Rb8 Qb8 39.Qe2 (worse is 39.Ke2 Be8 40.Na5 Bb5 41.Ke1 Qb6 42.ab5 Qa5 43.Qd2 Qb5+–) 39...Qa7? (39...Qc7 40.Qd3 Kf8 41.Ke2+–) 40.Qe3 (40.Kg3 Be8+–) 40...Qd7 (40...Qc7 41.Qb3 Kf8 42.d6+–) 41.Nb6 (41.Qb3 Be8+–) 41...Qa7? (41...Qd6+–) 42.Qc5 Be8 43.d6 Qb7 (43...h5 44.Qc7 Qa6 45.d7 Bd7 46.Nd7+–) 44.Qd5 (better is 44.Qc7!? Qc6+–) 44...Qd5 45.ed5 (45.Nd5?! Kf7+–) 45...Kf7 46.d7 Bd7 47.Nd7 Ke7 48.Ne5 Kd6 49.Nc4 Kd5 50.Na5 Kc5 (50...g5 51.Nb3 Kc4 52.a5+–) 51.Nb3 (51.Nb3 Kc4 52.Ke3+–) 1–0. Trkn – Knight_Moves, itsyourturn.com, 2000.

6.Be2 Be6 7.Qc2 d5 8.cd5 Qd5 9.Qc7 =.

6.Be2 Be6 7.Qc2 Be7 8.Nf3 (8.Qa4 c6+=) 8...h6 (8...e4 9.Nd4 0–0 10.Qa4=) 9.d4 ed4 10.Nd4 Bd7 (10...0–0 11.Qa4 b6 12.Bf3+=) 11.Nd2 (11.Qd2 c5 12.Nb3 Nb3 13.ab3 Ne4+–) 11...c5 (11...Bg4 12.Bg4 Ng4 13.Nf5+–) 12.N4f3+/– b6 (12...a6 13.0–0+/–) 13.a4 (13.0–0 a6+/–) 13...0–0+= 14.h3 (14.0–0 a6+/–) 14...Re8 15.g4 (15.0–0 a6+=) 15...Nh7 (15...a6 16.g5 hg5 17.Ng5+=) 16.Bd3+= Ng5 17.Ng5 Bg5 18.Ne4 Bc8 19.Qc3 The mate threat is Qxg7 19...Bf6? (better is 19...f6 20.h4 Bb7 21.hg5 Be4 22.Be4 Re4+/–) 20.Nf6+– Qf6 (20...gf6 21.Qf6 Qf6 22.Bf6+–) 21.Qf6 gf6 22.Bf6 Bb7 23.Rg1 Be4 (23...d5 24.cd5 c4 25.Bf5 Bd5 26.Rd1+–) 24.Ke2 Bd3 25.Kd3 Kh7 (25...a6 26.Rad1+–) 26.e4 (26.Bc3 Nb3 27.Rab1 Na5+–) 26...Re6 (26...Kg6 27.Bc3+–) 27.Bc3 Nb7 28.h4 (28.a5 ba5 29.Ba5 Na5 30.Ra5 Kg6+–) 28...Rae8 (28...a6 29.Rad1+–) 29.Rae1 (29.Rae1 Kg6 30.f4+–) 1–0. Kilpatrick,Robert – Jatkowski,Steve, corr 3GMM–01, 1995.

6.Nf3 e4 7.Qa4+=.

6.Nf3 Be7 7.Be2 (7.Bc3 c5=) 7...e4 8.Nd4 b6 (8...a6 9.0–0=) 9.Qc2 (9.d3+=) 9...c5 (9...a6!?+=) 10.bc6+/– Qc7 11.Qa4 (11.Nc3 Nc6 12.Nd5 Qb7 13.Nc6 Qc6 14.Bf6 gf6 15.Qe4 Qb7+–) 11...0–0 12.Nc3 Ba6 (12...Be6 13.0–0+/–) 13.Ncb5 (13.0–0 Rac8+/–) 13...Qc8 (13...Qd8 14.c7 Qc8 15.d3+/–) 14.0–0+– Bb5 (14...d5 15.cd5 Rd8 16.f3 Rd5 17.Rac1+–) 15.cb5 (15.Nb5?! Qc6 16.f3 a6=) 15...Bd8 (15...a6 16.d3+–) 16.Ba3 (16.d3 a6+–) 16...Ne8 (16...Bc7 17.d3+–) 17.d3 (17.Qc2 f5+–) 17...Bf6 (17...ed3 18.Bd3 a6 19.ba6+–) 18.de4 Bd4 (18...a6 19.Rfc1+–) 19.ed4 Qe6 (19...a6 20.Rfc1+–) 20.d5 Qe5 (20...Qe7 21.Rfc1+–) 21.Qc2 (21.f4 Qc3 22.e5 Qd2+–) 21...Rc8 (21...f5 22.Bd3+–) 22.Bb2 Qe7 (22...Qf4 23.Rac1+–) 23.Rfe1 Nf6 (23...Nc7 24.Bd3 Rfe8 25.Rac1+–) 24.Bd3 Nb7 (24...Ng4 25.Rec1+–) 25.Qc3 (25.Bf6!? Qf6 26.Rac1 Rfe8+–) 25...Nc5 26.Bc2 Rfe8 27.f4 (better is 27.Qg3+–) 27...Nce4 (27...Rc7+–) 28.Re4! Qe4 (28...Ne4 29.Qg7) 29.Be4 Re4 30.g3 (30.Qh3 Rc7 31.Bf6 gf6+–) 30...h6 (30...Re2 31.Ba3 Rce8 32.Bd6+–) 31.Qd3 Rce8 32.c7 (better is 32.Bf6 gf6 33.Qa3 Re1 34.Re1 Re1 35.Kf2 Rh1+–) 32...Rc8 (32...R4e7 33.Bf6 gf6+–) 33.Bf6 Ree8 34.Bd8 f6 (34...Rcd8 35.cd8R Rd8 36.Re1+–) 35.Qa3 Red8 36.cd8Q Rd8 37.Qa7 Kh7 38.Qc7 (38.Qc7 Re8 39.Qd6+–) 1–0. van Esbroeck,Dirk – van der Meiren,P, Waaslandtornooi, 1994.

5.b5 Nb4

6.a3 Nc6 7.bc6 bc6 8.d4 ed4 9.Bd4+–.

6.a3 d5 7.ab4 Bd6? (7...dc4 8.Be5 Be6+–) 8.c5 Be7 9.Be5 Ng4 (9...0–0 10.d4+–) 10.Bb2 (better is 10.Bg7!? Rg8 11.Bd4 Bh4+–) 10...Bh4 11.g3 (11.Bg7?! Nf2 12.Qh5 Nh1 13.g3 Bf6 14.Bh8 Bh8+/–) 11...Be7 (11...Bf6 12.d4+–) 12.Bh3 (better is 12.Bg7!? Rg8 13.Bd4 Bf6+–) 12...Nh6 (12...Nf6+–) 13.Bg7 (13.Bg7 Bf6 14.Bh8 Bh8 15.d4+–) 1–0. Trkn – Magic, itsyourturn.com, 2000.

6.a3 Nbd5 7.cd5 Nd5 8.Nc3 Be6 9.Nd5 (9.d4 Nc3 10.Bc3 ed4 11.Bd4 c5 12.bc6 bc6+–) 9...Bd5 10.d4 ed4 (10...e4 11.Ne2 Bc4 12.Nf4 Bf1 13.Kf1+–) 11.Qd4 Be6 12.Ne2 (12.Bd3 a6+–) 12...Qg5 (12...c5 13.Qc3+–) 13.Nf4 Bd7 (13...Bf5 14.Bd3 Bd3 15.Qd3+– (15.Nd3?! Qg2 16.Rf1 Qf3+–)) 14.Qe4 Be6 (14...Be7 15.Nd5 Rc8 16.Bf6 Qf6 17.Nf6 gf6 18.Qb7+–) 15.Qb7 Rd8 (15...Qd8 16.Qc6 Ke7 17.Rc1+–) 16.Qa7 (16.Ne6 fe6 17.Qa7 Qe7+–) 16...Be7 (16...Qe7 17.Ne6 fe6 18.Rc1+–) 17.Qc7 0–0 (17...Bf6 18.Ne6 fe6 19.Qc6 Ke7+–) 18.h4 Qg4 19.Qe7 Bb3 (19...Rfe8 20.Qg5 Qg5 21.hg5+–) 20.Qg5 Qg5 21.hg5 Rfe8 22.a4 (22.Bd3 g6+–) 22...d5 23.a5 d4 24.Bd3 de3 25.Bh7 Kh8 26.Bc2 Kg8 27.Bb3 ef2 28.Kf1 Re4 29.Ng6 Re1 30.Re1 fe1Q 31.Ke1 1–0. pierre – Bialki, ChessHere.com, 2006.

6.a3 Nbd5 7.cd5 Nd5 8.Nf3 Bg4 9.Qc2 Bf3 10.gf3 Qf6 11.f4 Qe6 12.fe5 0–0–0 13.Bc4 de5 14.Nc3 c6 15.Nd5 Rd5 16.e4 Kb8 17.ed5 cd5 18.Ba2 Be7 19.Rc1 Bf6 20.Qc7 Ka8 21.Bd5! Rb8 22.Be6 (22.Be6 fe6 23.Qd7 Bd8 24.Rc8 a5 25.Rb8 Kb8 26.Qd8 Ka7 27.Be5 a4 28.Qa5#) 1–0. Sopermi (2195) – ANTONIOruiz (2170), ajedrez21.com, 2001.

5.b5 Nb8

6.d4 e4=.

6.Nf3 a6 7.Be2=.

6.Nf3 Be7 7.Nc3 Nbd7 8.d4 e4 (8...0–0!?=) 9.Ng5 h6 (9...0–0 10.Nge4 Ne4 11.Ne4+/–) 10.Nge4 Ne4 11.Ne4 Nb6 12.c5 d5 (12...Nd5 13.Qb3 c6 14.bc6 bc6 15.Qa4+–) 13.Nd2 (13.Nc3 Nc4 14.Bc4 dc4+–) 13...Nd7+/– 14.Bd3 Nf6 15.0–0 0–0 16.Qc2 c6 17.bc6 bc6 18.Nf3 Bg4 (18...Qc7 19.Bc3+–) 19.Ne5 Be6 (better is 19...Bd7+–) 20.Nc6 Qc7 21.Ne7 Qe7 22.f3 (22.Rab1 Qc7+–) 22...Rab8 23.Rab1 Bd7 24.e4 de4 (24...Bb5 25.e5 Ne8 26.Bb5 Rb5 27.f4+–) 25.fe4 Ng4 (25...Bb5 26.Bb5 Rb5 27.e5+–) 26.Rf3 Bc6 (26...Bb5 27.e5 Bc6 28.Qe2+–) 27.d5 (27.h3 Nf6 28.d5 Bb5 29.Bf6 Bd3 30.Be7 Bc2+–) 27...Bd7 (27...Bb5 28.Bb5 Rb5 29.Rc1+–) 28.c6 Bc8 29.Rg3 g6 (29...Qh4 30.Rh3 Qe7 31.e5+–) 30.Qc3 f6 31.h3 Ne5 32.Ba3 Rb1 33.Bb1 Qe8 34.Bf8 Qf8 35.Qd4 Qa3 (35...a5+–) 36.Ra3 (36.Ra3 a6 37.Qb6+–) 1–0. marre – feec, internet, 2010.

6.Nf3 Bg4 7.h3 Bf3 8.Qf3 c6 9.Nc3 a6 10.bc6 Nc6 11.Nd5 Be7 12.Bc3 e4? (better is 12...Nd5 13.cd5 Na7+=) 13.Nf6+– Bf6 14.Qe4 Qe7 15.Qe7 Ne7 16.d4 d5 17.Rb1 0–0 (17...dc4 18.Rb7 (18.Bc4?! Rc8+=) 18...Nd5 19.Ba5+–) 18.Rb7 Rac8 (18...dc4 19.Bc4 Rac8 20.Rb4+–) 19.c5 g6 (19...Rb8 20.Ra7 (20.Ba6?! Rb7 21.Bb7 Rb8+–) 20...Ra8 21.Ra8 Ra8 22.Bd3+–) 20.a4 Nf5 (20...a5 21.Bb5 (worse is 21.Ba5 Ra8+–) 21...Ra8 22.Ke2+–) 21.Ba6 Rce8 22.Kd2 h5 23.a5 Bh4 24.g3 Bg3 25.fg3 Ng3 26.Re1 Ne4 27.Kc2 f5 28.Bb5 Re6 (28...Ra8 29.Bc6 Nc3 30.Kc3 Ra5 31.Bd5 Kh8 32.Rg1+–) 29.a6 (29.a6 Ra8 30.a7+–) 1–0. michaelbuss – R2D2, ChessWorld.net, 2008.

5.b5 Ne7

6.Nc3 Be6 7.Nf3 Ng6 8.Bd3 c6 (8...a6 9.0–0=) 9.bc6 bc6 10.Qa4 Bd7 11.Rb1 Be7 12.0–0 0–0 13.Ne4 Qc7 14.Ng3 (14.Nf6 Bf6 15.Qc2 Rab8=) 14...Rfe8 15.c5 Rab8 16.Bc3 Rb1 17.Rb1 Rb8 (worse is 17...dc5 18.Bg6 fg6 19.Qb3 Kh8 20.Ne5+–) 18.Rb8 Qb8 19.Nf5 Bf5 20.Bf5 Qb7 21.cd6 (21.Qc2 Qc7+/–) 21...Bd6+= 22.g3 (22.Qc2 Qc7+=) 22...c5 (22...Ne7 23.Bc2 Qb8 24.Ng5+=) 23.Ng5 h6 24.Ne4 Bf8 (24...Qb1!? 25.Kg2 Qb7+/–) 25.Nf6 gf6 26.Bc2 1–0. pcmvr (2870) – ppramanik (2585), net–chess.com, 2009.

6.Nc3 Ng6 7.Qc2 Be7 8.Nf3 0–0 9.Be2 Re8 10.0–0–0 (10.0–0!?=) 10...Bf8 11.h4 Ng4 12.Rdf1 h6 13.h5 Ne7 14.Ne1 Nf6 15.f4 Bg4 16.Bg4 Ng4 17.f5 Nf6 18.Ne4 Ne4 19.Qe4 d5 (better is 19...a6!?–/+) 20.Qe5= Nc8 (better is 20...f6!? 21.Qg3 Kh8=) 21.Qd5+/– Qd5 22.cd5 Nb6 23.Rh4 Nd5 24.Rg4 c6 25.bc6 Rac8 26.f6 Rc6 27.Kb1 Rec8 28.Nd3 Rb6 29.fg7 Ba3 30.Rf5 Ne7 31.Rf6 Rcc6 32.Rc6 Nc6 33.Kc1 (better is 33.Re4 Bb2 34.Nb2 Kg7 35.g4+/–) 33...Ne5= 34.Ba3 Ng4 35.Bf8 Nf6 36.Nf4 Rb5 37.a4 Rf5 (37...Ra5 38.Bb4 Ra4 39.Bc3–/+) 38.g3 (38.Kc2!?=) 38...Nd7 39.e4 Ra5 40.Nd5 Nf8 41.gf8Q Kf8 42.g4 Ra4 43.d3 a5 44.Kc2 Rd4 45.Kc3 Rd5 46.ed5 f6 47.Kc4 a4 48.d6 Ke8 49.Kb4 b5! (49...b5 50.Kc3 Kd7–+) 0–1. combijack (1830) – mischo (1800), gameknot.com, 2011.

6.d3 Ng6 7.Nf3 Be7 8.Be2 0–0 9.0–0 b6 10.Nbd2 Bb7 11.a4 a5 12.Ne1 Qd7 13.Bf3 Bf3 14.Qf3 h6 15.g3 Nh7 16.d4 ed4 17.ed4 d5 18.Nd3 dc4 19.Nc4 Ng5 20.Qg2 Bf6 Attacks the isolani on d4 21.Nde5 Be5 22.de5 Qd3 23.Rac1 Nf3 24.Kh1 Rad8 25.Ne3 Nge5 26.Rc7 Qb3 27.Be5 Ne5 28.Qe4 Nd3 29.Kg2 Nc5 30.Qc4 Qc4 31.Nc4 Na4 32.Ra1 Nc3 ˝–˝. Taus,Martin (2170) – Mezei,Zsolt, 40. LSS No Engine Cup Preliminary, 2011.

6.d4 a6 7.de5+/– de5 8.Qd8 Kd8 9.Be5 ab5 10.cb5 Ne4 (10...Ned5 11.Nd2+/–) 11.Nc3 (11.f3 Ng6 12.Bd4 Nc5+/–) 11...Nc3 12.Bc3 Nd5? (better is 12...Be6+/–) 13.Rd1+– Be6 (13...c6 14.bc6 bc6 15.e4+–) 14.e4 Ra3 15.ed5 Bd5 (15...Bf5 16.Ne2 Ra2+–) 16.Rd5 Kc8 17.Ne2 Bd6 (17...Ra2 18.g3 c6 19.Bh3 Kc7 20.Rd7 Kb6 21.Bg2+–) 18.b6 (18.Bg7!? Rd8 19.Bc3 Ra2+–) 18...Ra2 19.bc7 Bc7 (19...Kc7 20.Bg7 Bb4 21.Kd1+–) 20.Bg7 Re8 (20...Rd8 21.Rh5+–) 21.Bc3 (21.g3 Bb6+–) 21...Rc2 22.Bd4 Rc1 (22...Bf4 23.f3+–) 23.Kd2 Rb1 (23...Rc6 24.g3 Rh6 25.h4+–) 24.g3 h5 (24...Re6+–) 25.Bh3 (25.Bh3 Kb8 26.Rb1+–) 1–0. marekt – agarwalsau, GameColony.com, 2002.

6.d4 Bd7 7.Nf3 (7.de5 de5 8.Be5 Ng6+=) 7...e4= 8.Nfd2 d5 9.Nc3 c6 10.bc6 Bc6 11.Qc2 Rc8 12.cd5 Ned5 (12...Bd5 13.Bb5 Nc6 14.0–0+=) 13.Nce4 Ne4 (13...Bb4 14.a3 Bd2 15.Nd2+= (worse is 15.Kd2 Qa5 16.Nc3 Nc3 17.Bc3 Qc3 18.Qc3 Ne4 19.Kd3 Nc3–/+)) 14.Qe4 (worse is 14.Ne4 Nb4 15.Qb1 Ba4–/+) 14...Ne7 (14...Be7 15.Ba3+=) 15.Qd3 Qb6 (15...f5 16.Ba3+/–) 16.Nc4 Qb4? (better is 16...Qc7+/–) 17.Bc3+– Qa4 18.Nd6 Kd7 19.Nf7 (19.Nc8 Kc8 20.e4 f5+–) 19...Rg8 20.Qh7 (better is 20.e4 Qa3 21.Bd2 Qd3 22.Ne5 Ke8 23.Bd3+– (23.Nd3?! Be4 24.f3 Bd5+/–)) 20...Nd5 (20...Bd5 21.Ne5 Kd8+–) 21.Ne5 Kc7 22.Qg8 (worse is 22.Nc6 Qc6 23.Ba5 b6+–) 22...Bb4 (22...Nc3 23.Nc6 Qc6+–) 23.Qg7 Kb8 24.Nc6 bc6 (24...Rc6 25.Qg3 Kc8 26.Qg8 Kc7 27.Bb4 Qb4 28.Ke2 Qb2 29.Kf3 Qa1 30.Qd5 Qd1 31.Kf4+–) 25.Bb4 Qb4 26.Kd1 Nc3 (26...Qa4 27.Ke2 Qc2 28.Kf3 Qf5 29.Kg3+–) 27.Kc2 Nb5 (27...Rf8 28.Be2! Nb5 29.Rhb1 Qa4 30.Kd2 Qa5 31.Kd1 Qa4 32.Ke1+–) 28.Qe5 Kb7 29.Bb5 (better is 29.Qc5 Qc5 30.dc5 Rf8+–) 29...cb5 30.Kd1 Qa4 31.Ke1 Qc2 (31...Qb4 32.Ke2 Qc4 33.Kf3 Qc6 34.d5 Rf8 35.Ke2 Qc2 36.Ke1 Qf2 37.Kd1 Qg2 38.Qe7 Ka6 39.Qd6 Ka5 40.Qc7 Ka6 41.Qc6 Ka5 42.Re1 Qg4 43.Kd2+–) 32.Qb5 Ka8 33.Qd5 (33.Rb1!? Qc3 34.Kf1 Qc1 35.Rc1 Rc1 36.Ke2 Rh1+–) 33...Rc6 34.f4 (better is 34.Qb3 Qe4 35.Rb1 Rb6 36.Qg8 Kb7 37.Rb6 ab6+–) 34...Qc3 35.Kf2 Qd2 36.Kf3 Kb7 37.Rhb1 Kc7 38.Qe5 Rd6 39.Qe7 Kc6 (39...Kc8 40.Qd6 Qd1 41.Rd1 a5 42.Rab1 a4 43.Rb8) 40.Qb7 1–0. Bonetti,Shane – pille, ICC, 2002.

6.d4 Ng6 7.Nf3 e4 8.Nfd2 d5 (8...Bf5 9.Be2=) 9.cd5 Qd5 (9...Bf5 10.Bc4+=) 10.Qc2+= Bb4 11.Qc7 0–0 (11...Be6 12.Nc3 Bc3 13.Bc3+=) 12.Nc3 (12.Ba3 Ba3 13.Na3 Be6+/–) 12...Bc3 (12...Qf5 13.Rc1+/–) 13.Qc3 (13.Bc3 Be6+=) 13...Be6+= 14.Be2 (14.Qc4 Qf5 15.Qc7 Rfc8=) 14...Rac8 15.Qb4 Rc7 (15...Qg5 16.g3+=) 16.0–0 Rfc8 17.h3 (better is 17.Rfc1+=) 17...Bh3?? (better is 17...Qg5 18.Kh2 Nd5+=) 18.gh3+– Qg5 (18...Rc2 19.Rfd1+–) 19.Kh2 Rc2 20.Rad1 Nd5 (20...Nh4 21.Rg1 Qf5 22.f4 ef3 23.Bf1+/–) 21.Qb3 Nh4 22.Bg4 Nf6 23.Rg1 Ng4 (23...Rd2 24.Bc8 Rf2 25.Kh1 Nf3 26.Qf7 Kf7 27.Be6 Ke8 28.Bf7 Kf7 29.Rg5 Rh2) 24.Rg4 (24.hg4 Rd2 25.Rg3 Rf2 26.Kg1 Rcc2 27.Qc2 Rc2–+) 24...Nf3 (24...Qf5 25.Rf4 Qh5 26.Ne4 Nf3 27.Kg3 Ng5 28.Ng5 Qg5 29.Kh2 Qe7+–) 25.Nf3 Rf2 (25...Qf5 26.Nd2 Qf2 27.Rg2+–) 26.Kg1 Qg4 (26...Qf5 27.Kf2 Qf3 28.Kg1 Qh3 29.Rg2+– (29.Re4?! Qg3 30.Kf1 Qf3 31.Ke1 Qe4+–)) 27.hg4 Rcc2 (27...Rf3 28.Rf1 Rf1 29.Kf1+–) 28.Qd5 Rg2 (28...h6 29.Qe4 f5 30.Qf5 Rg2 31.Kh1+–) 29.Kh1 h6 30.Qe4 1–0. Bonetti,Shane – guest1255, ICC, 2002.

6.Nf3 c6 7.a4 a6 8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 Bd7 12.0–0 Ng6 13.Qc2 Be7 14.d4 e4 15.Nfd2 d5 16.f3 ef3 17.Nf3 Ng4 18.Qd3 0–0 19.Nc3 Be6 20.Nd2 Nh6 21.Bf3 Bf5 22.e4 de4 23.Be4 Be4 24.Qe4 Qd7 25.Nf3 Re8 26.Re1 f6 27.Qd5+= Qd5 28.Nd5 Kf7 29.Ne7 Ne7= 30.Bb2 b6 31.Ba3 Nd5=+ 32.Rc1 Nf5 33.Kf2 Ra8–/+ 34.Ra1 Nc7 35.g4 Ne7 36.Nd2 Nb5 37.Bb2 Ra1 38.Ba1 Ke6 39.Ke3 Kd5 40.Kd3 Nd6 41.Bc3 Nc6 42.Bb2 b5 43.Nf1 b4?? 44.Ne3+/– Ke6 45.d5 Kd7 46.dc6 Kc6 47.g5! Ne8? 48.gf6+– gf6 49.Kc4 Kd6 50.Kb4 Ke6 51.Kc5 f5 52.Nd5 Nd6 53.Nf4 Ke7 54.Kd5 Ne4 55.Ke5 Kf7 56.Kf5 Nd6 57.Kg5 Ne4 58.Kh6 Nf6 59.Bf6 Kf6 60.Kh7 Kg5 61.Ng6 Kg4 62.h4 (62.h4 Kh5 63.Kg7+–) 1–0. hal1958 – ChessWorm, playchess.de, 2002.

6.Nf3 c6 7.d4 e4 8.Nfd2 d5 9.bc6 Nc6 (9...bc6 10.Nc3=) 10.cd5 (10.Nc3 dc4 11.Bc4 Bb4+=) 10...Nd5 (10...Qd5!? 11.Nc3 Qf5=) 11.Ne4+= Bb4 12.Nbd2 0–0 (12...Qh4 13.Nc5+=) 13.Bc4 Bf5 14.0–0 Be4 (14...Rc8 15.Qh5 Na5 16.Qf5 Nc4 17.Nc4 Rc4 18.Rac1 Rc1 19.Rc1+/–) 15.Ne4 Nf6 (15...Na5 16.Bd3+/–) 16.Ng5 (better is 16.Qf3 Ne4 17.Qe4+–) 16...Nd5? (better is 16...Rc8+/–) 17.Qh5+– g6 (17...Nf6 18.Bf7 Kh8+–) 18.Qh7 1–0. Bonetti,Shane – guest907, ICC, 2002.

6.Nf3 c6 7.Be2 e4 8.Nd4 d5=.

6.Nf3 e4 7.Nd4 (7.Bf6 gf6 8.Nd4 Bg7=) 7...Bg4 (7...a6 8.d3=) 8.Be2 Be2 9.Ne2 Nf5 (9...Ng6!?=) 10.Qc2+= d5 11.cd5 Qd5 (11...Nd6 12.Bf6 Qf6 13.Nbc3+/–) 12.Bf6 gf6 13.Qc7 (13.Nbc3 Qd3 14.Qa4 0–0–0 15.Ne4 Bd6+/–) 13...Qb5 (better is 13...Bd6!? 14.Qc2 Qd3 15.Qd3 ed3+/–) 14.Nbc3+– Qb4 (better is 14...Qc6 15.Qc6 bc6 16.Ne4 Nd6 17.Nf6 Ke7+–) 15.Rb1 Bd6 16.Qb7 Qb7 17.Rb7 Rb8 18.Rb8 Bb8 19.Ne4 Ke7 20.d4 Rc8 21.0–0 (21.N2c3 Nd6 22.Kd2 Ne4 23.Ne4 f5+–) 21...Rc2 22.N2c3 Nd6 (22...Kd8 23.a4+–) 23.Nd5 Ke6 24.Nb4 Re2 (24...Rb2 25.Nc5 Kf5 26.Nba6+–) 25.Nc5 Kf5 26.Nca6 Rb2 27.a3 (27.Nb8?! Rb4 28.Nc6 Rb2+–) 27...Nc4 28.Nb8 a5 29.N4c6 Na3 (29...Ke6 30.Ra1+–) 30.Nd7 Nc4 31.Rc1 h5 (31...Ke6 32.Nf8 Kd6 33.g3+–) 32.g4! Ke6 (32...Kg4 33.Nf6 Double attack (33.Nf6 Deflection; 33.Rc4 Zwischenzug); 32...hg4 33.Ne7 Double attack (33.Rc4 Zwischenzug)) 33.Nc5 Kd6 34.Na4 Rb5 35.Rc4 hg4 (35...Kd5 36.Rc5 Rc5 37.Nc5 hg4 38.Ne7 Kc4 39.Kg2+–) 36.Nc3 Rf5 (36...Rb2 37.Na5 f5 38.Kg2+–) 37.d5 Rd5 38.Nd5 Kd5 39.Na5 f5 40.Rf4 Ke6 41.Nc6 Kf6 42.e4 Kg7 43.Rf5 Kh7 44.Rf7 Kg6 45.Ne5 Kg5 46.h3! gh3 (46...gh3 47.f4 Mate attack) 47.f4 Kh6 48.Kh2 Kh5 49.Rh7 1–0. Bonetti,Shane – KNEiTER, ICC, 2002.

6.Nf3 Ng6 7.Qc2N Be7 (7...a6 8.d4=) 8.d4 e4 (8...Bg4 9.de5 de5 10.Be2= (worse is 10.Ne5 Bb4 11.Nd2 Ne5 12.Be5 Ne4–+)) 9.Nfd2+= Bf5 10.Nc3 Will e4 fall? 10...0–0 (10...d5 11.Nd5 Nd5 12.cd5 Qd5 13.Bc4+/–) 11.Nde4+/– Ne4 12.Ne4 d5 (12...Nh4 13.d5+/–) 13.Nf6 Bf6 14.Qf5 dc4 (14...c5!? 15.bc6 Qa5 16.Kd1 bc6+/–) 15.Bc4+– Nh4 (15...Ne7 16.Qh5+–) 16.Qe4 Re8 (16...Rb8 17.0–0+–) 17.Qb7 Rb8 (17...Bd4 18.Rd1 (18.Bd4 Qd4 19.Rc1 Re3 20.Kf1 Rf8 21.fe3 Qe3=) 18...Qe7 19.Bf7 (19.Bd4?! Qb4 20.Rd2 Qc4+/–) 19...Qf7 20.Bd4+–) 18.Qa7 Ng2 19.Kf1 Nh4 20.Qc5 Nf3 (20...Qd7 21.Qd5 Qh3 22.Ke1 Nf3 23.Ke2+–) 21.Bc3 Rb6?! (21...Qd7 22.h3 Ng5+–) 22.Qd5 Qd5 (22...Ng5 23.Qd8 Bd8 24.a4+–) 23.Bd5 Ng5 24.a4 Ra8 (24...Rd8 25.Bc6 Rdb8+–) 25.Ba8 1–0. marre – safari_at, internet, 2010.

6.Nf3 Ng6 7.d4 e4 8.Nfd2 c6 9.Nc3 (9.d5 Ne5=) 9...d5 (9...cb5 10.Nce4 Ne4 11.Ne4 bc4 12.Bc4=) 10.Qa4 (10.Be2 Be7=) 10...Bd7 11.Qb3 (better is 11.bc6 bc6 12.Rb1=) 11...Bc8 (better is 11...Bf5!?=) 12.bc6+/– bc6 +/–. pcmvr (2225) – pops (2190), net–chess.com, 2006.

6.Nf3 Ng6 7.d4 ed4 8.Nd4 Be7 9.Be2 0–0 10.0–0 d5 11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 Bd6 14.Qc2 Qg5 15.Nf3 Qh6 16.Rad1 Re8 17.a4 Be6 18.g3 Bg4 19.Nd4 Bh3 20.Nf5+/– Bf5 21.Qf5 Ne5 22.Bd4 g6 23.Qc2 Qf8 24.f4+– Nd7 25.Bf3 Nc5 26.f5 Qe7 27.Bd5 Ne4? 28.f6 Qe6 29.Be6 Re6 30.Qc4 Rae8 31.Rd3 b6 32.Rdd1 Nc5 33.Rf3 Ne4 34.Qd5 Rb8 35.Rd3 h5 36.Rf1 Kh7 37.Qc6 g5 38.Qd5 Kh6 39.Rf5 Rg8 40.Rd1 Rg6 41.Qa8 Kh7 42.Qa7 h4 43.Bb6! hg3 44.Bc7 gh2 45.Kg2 Be5 46.Be5 Re5 47.Re5 Rf6+– 48.Re7 Kg6 49.Rdd7 h1Q 50.Kh1+– Nf2 51.Kg2 Ng4 52.Rf7 Ne3 53.Kg3 Nf1 54.Kg2 Ne3 55.Kg3 Nf1 56.Kg4 Ne3 57.Kg3 Rf3 (57...Rf3 58.Kf3 g4 59.Ke3 Kh5 60.Rh7 Kg5 61.Rd5 Kf6 62.Qb6) 1–0. Machete99 (2235) – Zeigma (2235), ICC, 2002.

6.Nf3 Ng6 7.d4 ed4 8.Nd4 Be7 9.Be2 a6 10.a4 (10.0–0 0–0=) 10...Ne5 (10...ab5 11.cb5 Ne5 12.0–0+=) 11.Nd2 (11.0–0 0–0=) 11...c6 (11...0–0 12.0–0=) 12.0–0 ab5 13.ab5 Ra1 14.Qa1 c5 (14...Qc7 15.Qa7 c5 16.N4f3+=) 15.Nc2 (15.N4b3 Qc7+=) 15...Ng6 (15...0–0 16.e4+=) 16.e4 0–0 17.Ne3 (17.Qa3 Nf4 18.Bd1 Ne8+=) 17...Re8 18.f4 Bf8 (18...Qc7!?+=) 19.Bf6+/– Qf6 (19...gf6 20.f5 Ne5 21.Nd5+–) 20.Qf6+– gf6 21.Nd5 Bg7 22.f5 Ne7 23.Nb6 Bh6 24.Nb3 (24.Nc8?! Be3 25.Kh1 Nc8+=) 24...Rd8 (24...Kf8 25.Rd1+– (25.Nc8?! Be3 26.Kh1 Nc8+/–)) 25.Rd1 (worse is 25.Nc8 Nc8 26.Ra1 Be3 27.Kf1 Re8+–) 25...Bf4 (25...Nf5 26.ef5 (26.Nc8?! Ne3 27.Rd6 Rc8+–) 26...Bf5 27.Bd3+–) 26.g3 Be5 27.Nc5! Bf5 (27...dc5 28.Rd8 Double attack (28.Rd8 Pinning; 28.Rd8 Deflection)) 28.ef5 Nf5 29.Nb3 Kf8 (29...Ne3 30.Rd3 Nc2 31.Rd2+–) 30.Bf3 Ke7 (30...Kg7 31.Rd3+–) 31.Bb7 Rb8 32.Nd5 Ke6 33.Bc6 Ne7 34.Nd4 (34.Nf4 Kf5 35.Bd7 Kg5+–) 34...Bd4 35.Rd4 Ng6 36.Nf4 Ke7 37.Ng6 (37.Kf2 f5+–) 37...fg6 (37...hg6 38.Re4 Kf8 39.Rh4+–) 38.Re4 Kf7 39.Bd5 Kg7 (39...Kf8 40.Re6 f5 41.Rd6+–) 40.Re7 Kh6 41.Re6 1–0. Dzieniszewski,Andrzej – Gancarczyk, Jelenia Gora POL, 1977.

6.Nf3 Ng6 7.Be2=.

6.d4 ed4

7.Bd4 Nf5 8.Bb2 a6 9.ba6 (9.Nf3 ab5 10.cb5 Be7=) 9...Ra6 10.Qc2 (10.Nf3 Be7=) 10...Be6 (10...Nh4 11.c5 Bf5 12.Qb3=+) 11.Bd3 (11.Nf3 Nd7=) 11...Nh4=+ 12.g3 Ng6 13.a3 (13.Nf3 Be7=+) 13...Ne5–/+ 14.Be2 Qd7 15.Nd2 Qa4 (15...Bf5 16.e4 Bg6 17.f4 Ne4 18.Ne4–/+) 16.Qa4 Ra4 17.c5 Bd7 (17...Ra5 18.cd6 Bd6 19.f4=) 18.Ngf3= Bc6 19.cd6 Nf3 (19...Bd6? 20.Be5 Be5 21.Ne5 Bh1 22.Bb5 Bc6 23.Nc6+–; < 19...cd6 20.0–0+=) 20.Bf3 Bf3 21.Nf3 Bd6 22.0–0 (22.Bf6 gf6 23.Ke2 Kd7= (< 23...Ba3 24.Rhb1 Kd7 25.Rb7+=)) 22...Nh5 (22...Ke7 23.Nd4 g6 24.Nb5=) 23.h3= ˝–˝. MacChess 5.0 – GnuChess 4, 2000.

7.Bd4 Nf5 8.Bb2 b6 9.Qf3 Be6 (9...Rb8 10.Nc3 (10.Qf4+= d5 11.cd5 Nd5 12.Qc4 Bb4 13.Nc3 0–0 14.0–0–0=; 10.h4 Be7 11.Nc3 Nh6 12.Nd5 Nhg4 13.h5 0–0 14.h6=) 10...Nh4 11.Qf4 Ng6 12.Qd4 Ne5 13.Be2 Bb7 14.Nf3+=) 10.Bd3+/– (10.Bf6 Qf6 11.Qa8 Kd7 12.Bd3 Qa1 13.Qa7 g6 14.Qa4+/–) 10...Nh4 11.Qc6 Bd7 12.Qb7 (12.Bf6 gf6 13.Qe4 Be7+= 14.Ne2+=) 12...Rb8 (12...Be7 13.g3 Ng6 14.Nf3=) 13.Bf6+= Rb7 (13...gf6 14.Qe4+=) 14.Bd8 Kd8 15.g3 g6 16.a4 (16.gh4? Bg7–+) 16...Nf5 17.Be4 Rb8 18.Nc3 Bg7 19.Rc1 (19.Nge2 Ne7+=) 19...Re8 20.Nge2 Bc3 (20...h5 21.Bd5 Rf8 22.0–0=) 21.Nc3+= Re5 22.Kd2 =. Nielsen,Jorgen Axel – Zimmermann,P, corr, 1971.

7.Bd4 Nf5 8.Bb2 b6 9.Nf3 Be7 (9...a6 10.Bd3 Be7 11.0–0 0–0 12.Qc2 Qd7 13.Rd1 Qe6 14.Nc3+/–) 10.Bd3 (10.e4 Nh6 11.Bd3 0–0 12.0–0 a6 13.Re1 Re8 14.Nd4+=; 10.Be2 0–0 11.Nc3 a6 12.e4 Nh6 13.0–0 Re8 14.Re1+=) 10...a6 11.0–0 Be6 12.Qc2 Qc8 13.Re1 Qd7 14.e4+/–.

7.Bd4 Nf5 8.Bb2 Ne4 9.Nf3 A) 9...Be6 10.Nc3 (10.Nbd2 d5 11.cd5 Bd5 12.Ne4 Be4 13.Qa4 Qe7 14.Nd2=) 10...Qf6 11.Qc2 Nc3 12.Bd3 Nh4 13.Nh4 Qh4 14.Qc3+=; B) 9...Nh4 10.Nbd2 (10.Nfd2 Nc5 11.Nb3 Na4 12.Bd4 Qg5 13.g3 Nf5 14.Bg2=; 10.Nd4 Qg5 11.g3 Ng6 12.Bg2 Nc5 13.0–0 Bg4 14.Qc2+=) 10...Nc5 11.Nh4 Qh4 12.Be2 Be6 13.0–0 0–0–0 14.Bd4+=.

7.Bd4 Nf5 8.Bb2 Nh4 9.Ne2 (9.Nc3 Be7 10.h3 0–0 11.Nf3 Nd7 12.Nh4 Bh4 13.Bd3 Nc5 14.0–0=) 9...Be7 10.Nbc3 (10.Nf4 a6 11.Nd2 Bg4 12.Qc2 0–0 13.ba6 Ra6 14.Nd5=) 10...0–0 11.Nd5 a6 12.ba6 Ra6 13.Nef4 Bf5 14.Be2=.

7.Bd4 Nf5 8.Bd3=.

7.Bd4 Ng6 8.Bd3 (8.Nf3 Be7=) 8...Be6 (8...Ne5 9.Nf3 Nd3 10.Qd3=) 9.Qa4 (9.Qf3!?=) 9...Ne5+= 10.Be2 Bd7 (10...Bf5 11.b6 c6 12.ba7=) 11.Nf3= (worse is 11.Ba7 d5 12.Qd1 Bb4 (12...Ra7?! 13.Qd4=) 13.Kf1 Nc4 (13...Ra7?! 14.Qd4=) 14.Bc4 dc4–+) 11...Ng6 (11...a6 12.Qc2=) 12.Nc3 a6 13.Qb3 (13.Qc2 Be7+=) 13...a5 (13...ab5 14.0–0=) 14.Ng5 (14.0–0 Be7+/–) 14...h6 (14...c5 15.bc6 bc6 16.c5+=) 15.Nge4+= Be7 (15...Ne4 16.Ne4 a4 17.Qd1+=) 16.0–0–0 (16.Bf3!?+/–) 16...0–0 (16...a4 17.Qc2=) 17.g3 (17.Bf3 a4 18.Na4 Ne4 19.Be4 Bg4+=) 17...Ne4 (17...Bf5 18.Bd3 a4 19.Qc2=) 18.Ne4 c5 (18...a4 19.Qd3=) 19.Bc3 (19.Bb2 a4 20.Qc3 f6+/–) 19...Qc7 (19...Qb6 20.Bf3=) 20.Qb2 (20.b6 Qc6 21.Bf3 Kh8+/–) 20...f6 (20...f5 21.Bh5 Kh7 22.Nd6 Bd6 23.Qd2=) 21.Qd2 (21.b6 Qc6 22.Bf3 Kh8 23.Nf6 Qf3 24.Nd7 Rf7+=) 21...Rfd8 (21...Be6 22.h3=) 22.f4 (22.Qd5 Kh8+/–) 22...Be8 (22...Be6 23.f5 d5 24.Nf6 Bf6 25.Bf6 (25.fe6?! d4 26.Bb2 de3+=) 25...gf6 26.fe6+=) 23.g4 (23.Qd5!? Bf7 24.Qf5+=) 23...Bf7= 24.g5 (24.Qc2 d5 25.cd5 Rd5 26.Rd5 Bd5=) 24...hg5 (24...d5 25.cd5 Bd5 26.Qd5 Rd5 27.Rd5 fg5 28.Bc4=) 25.fg5 fg5 (25...d5!? 26.Ng3 dc4+=) 26.Qb2 (26.Bd3 d5 27.cd5 c4=) 26...Ne5 (26...d5 27.cd5 Bd5 28.Bf3=) 27.Rhg1 Attacks the isolani on g5 (27.Be5 de5 28.b6=) 27...Bc4 (better is 27...Nc4 28.Bc4 Bc4 29.Ng5 Kf8=) 28.Bc4 (better is 28.Be5!? Be2 29.Bd6 Bd6 30.Rd6=) 28...Nc4–/+ 29.Qe2 Ne5 (29...d5 30.Ng5 Qb6 31.Qh5 Bg5 32.Qg5+–) 30.Ng5 Bg5 31.Rg5 c4 (31...Qe7 32.Rdg1 Qf7 33.Rg7 Qg7 34.Rg7 Kg7 35.Qg2 Kf6 36.Qb7+–) 32.Qg2+= Rd7 (32...Kf8 33.Rf5 Kg8 34.Qd5 Kh7 35.Be5 Qf7 36.Qf7 de5 37.Rh5) 33.Qd5 (33.b6!? Qc8 34.Qd5 (34.Be5?! de5 35.Rd6 e4 36.Rd7 Qd7+=) 34...Rf7 35.Rdg1+/–) 33...Rf7= 34.Rdg1 (34.Be5 de5 35.Rdg1 Kf8+=) 34...Kf8 35.Rh5 (35.Be5 de5 36.Rh5 Kg8+–) 35...Re8+= 36.Qg2 (36.Rh8 Ke7 37.Be5 de5+/–) 36...Ke7 (36...Qb6 37.Rh8 Ke7 38.Qg5 Kd7 39.Re8 Nd3 40.Kd1 Ke8 41.Bg7 Nf2 42.Kc2–/+) 37.Qg5 (37.Be5 de5 38.Qd5 Rd8 39.Re5 Kf8 40.Qc5 Qc5 41.Rc5 Rf2=) 37...Kd7+= 38.Be5 Re5 39.Qg6 (39.Qg7 Rg7 40.Rg7 Kc8 41.Rh8 Qd8 42.Rd8 Kd8 43.Rb7 Re3=) 39...Rfe7 (39...Ree7 40.Qg4 Re6 41.Rg5=) 40.Re5+= de5 41.Qg7 Qc5 (41...Rg7 42.Rg7 Theme: Double Attack) 42.Rd1 Kc7 43.Qg5 (43.Qf6!? b6 44.e4=) 43...Qa3+= 44.Kb1 c3 Threatening mate: Qb2 45.Qg2 Qb4 (45...Qc5 46.Qe2+=) 46.Ka1 Qc5 (46...Re6 47.Rd5=) 47.Qd5 (47.Qg6 e4=) 47...Kb6 (47...Qd5 48.Rd5 Rh7 49.Re5–/+) 48.Qd8= Rc7?? (better is 48...Qc7 49.Qd3 e4+=) 49.Qd6?? (better is 49.Rd6 Kb5 50.Rd5+–) 49...Qd6–+ 50.Rd6 Kb5 51.Kb1 Kc4 52.e4 (52.Re6 Kd5 53.Re8 Ke4–+) 52...b5 53.Rd5 Re7 (53...Rh7 54.a3–+) 54.Kc2 (54.h3 Rh7 55.Re5 Rh3–+) 54...a4 (54...Rh7 55.h4–+) 55.a3 Rh7 56.Re5 (56.h4 Rh4 57.Re5 Rh2 58.Kd1 b4 59.ab4 c2 60.Kc1 a3–+) 56...Rh2 57.Kc1 (57.Kd1–+) 57...b4 58.ab4 Kb3 0–1. Bender,Wolfgang – Philippi,Alfred, Saarland–chB, 1993.

4.e3 d5?

5.a3 dc4 6.Bc4 c5 (6...Bd6!?=) 7.bc5+= Bc5 8.Be5 Nc6 9.Bb2 Be6 10.Be6 fe6 11.Nf3 0–0 12.0–0 Bd6 13.d4 Ne7 14.Nbd2 Ng6 15.Rc1 Qd7 16.Qb3 Kh8 17.Nc4 Bc7 18.Rfd1 Rac8 19.Nce5 Qe7 (19...Qd5 20.Ng6 hg6 21.Qd5 ed5 22.Ne5+–) 20.Ng6 (20.Qb7!? Nd5 21.Ng6 hg6+–) 20...hg6 21.d5 (better is 21.Qd3!?+–) 21...Nd5+/– 22.Be5 Be5 23.Ne5 Qf6 24.Nf3?? (24.f4!? Nb6 25.Qb1 Rc1 26.Rc1+– (worse is 26.Qc1 g5+=)) 24...Rc1?? (better is 24...Nc3 25.Rc3 Rc3 (25...Qc3?! 26.Qe6 Qf6 27.Qb3=) 26.Qb7 Ra3–/+) 25.Rc1+/– Nb6 26.a4 g5 27.h3 g4 28.hg4 Rf7 29.a5 Nd5 30.Rc8 Kh7 31.Qd3 Qg6?? (better is 31...g6+–) 32.Qg6 (better is 32.Ng5! Kh6 33.Nf7 Qf7 34.f4+–) 32...Kg6 33.Ne5 Kf6 34.Nf7 Kf7 35.Rb8 b6 36.ab6 (better is 36.Rb7 Ke8+–) 36...ab6 37.Kf1 Kf6 38.Ke2 Ke5 39.f3 (39.Kf3 g5+–) 39...g5 40.Rg8 Kf6 41.Rf8 Kg7 (41...Ke5 42.g3+–) 42.Rb8 Kf7 0–1. Fournier,Frederic (1845) – GMoskarov (1700), Active, 2011.

5.Qa4 Qd7 6.b5 Qd6 7.cd5 Nd5 8.Nc3=.

5.c5 d4 6.ed4 ed4 7.Nf3 Nc6 8.a3?? (8.Bb5 Bd7 9.Bc6 Qe7 10.Kf1 Bc6 11.Nd4 Be4+/–) 8...a6?? (better is 8...d3 9.Qa4 Ng4–+) 9.Bd3 Qe7 10.Qe2 Qe2 (better is 10...Bg4!? 11.0–0 Qe2 12.Be2 0–0–0=) 11.Be2+/– Be7 12.Nd4 Nd4 13.Bd4 0–0 14.0–0 Nd5 15.Bf3 Nf4 16.Nc3 b6?? (better is 16...Ne6 17.Be5 c6+–) 17.Ba8+– bc5 18.Bc5 Bc5 19.bc5 Bf5 20.Be4 Be4 21.Ne4 Ne2 22.Kh1 Re8 23.Ng3 Nf4 24.Rfe1 Kf8 25.Re8 Ke8 26.d4 Kd7 27.Rd1 g6 (27...Nd5 28.Rb1+–) 28.Ne4 f5 29.Nf6 Ke7 30.Nh7 Nd5 (30...Ne6 31.Re1 Kf7 32.d5 Nc5 33.Rc1+–) 31.Ng5 (31.Re1 Kd7+–) 31...Nc3 (31...Kd7 32.Re1 Nf4 33.g3+–) 32.Rd3 (better is 32.Re1 Kf6 33.f4 a5+–) 32...Ne4 (32...Nd5+–) 33.Nf3 (better is 33.Re3 Kd8 34.Ne4 fe4 35.Re4+–) 33...Nf2+/– 34.Kg1 Nd3 35.Ne5 (better is 35.Kf1!?+=) 35...Ne5+= 36.de5 Ke6 37.Kf2 Ke5 38.Ke3? (38.Kf3 Kd5 39.g4 fg4 40.Kg4 Kc5–/+) 38...Kd5–/+ 39.Kd3? (39.Kf4 Kc5 40.Kg5+=) 39...Kc5–+ 40.Kc3 c6 41.g3 Kd5 42.Kd3 c5 43.h4 (43.h3 a5 44.a4 c4 45.Kc3–+) 43...c4 44.Kc3 (44.Ke3 a5 45.Kd2–+) 44...a5 45.a4 Kc5 (45...Kc5 46.Kc2 Kd4–+) 0–1. Fournier,Frederic – chuchus, Active, 2008.

5.cd5 Bb4?? 6.Be5?? (better is 6.Qa4 c6 7.Qb4 Nd5 8.Qb3+–) 6...Bd6 7.Bb2 Nd5 8.Nf3 (8.Bg7 Rg8 9.Bb2 h6+=) 8...Nc6 (8...0–0 9.Qb3 Nf6 10.d4+=) 9.Nc3 (9.Bg7!? Rg8 10.Bb2+=) 9...Nc3+= 10.Bc3 f6 11.Be2 0–0 12.0–0 Be6 13.d4 Ne7 14.Qc2 Qe8 15.Bd3 Qh5 16.h3 Bh3 17.gh3 (17.Bh7 Kf7 18.gh3 Qf3=) 17...Qh3 (17...Qf3 18.Bh7 Kh8 19.Be4 Qh3 20.f3+=) 18.Bh7 (18.Rfb1 Qf3 19.Bh7 Kf7+=) 18...Kf7 19.Qe4? (better is 19.Rfb1 g6 20.Qb3 Kg7 21.Qb7 Kh7 22.Qe4+=) 19...Rh8–+ 20.Qh4 Qf3 21.Rfe1 (21.Be4 Qe2 22.Bh7–+) 21...Nf5 22.Qf4 (22.Qh1 Qh1 23.Kh1 Rh7 24.Kg2 Rh2 25.Kf3–+) 22...Bf4 0–1. Fournier,Frederic (1620) – ositooooooo, Active, 2009.

5.Be5 dc4 6.Bc4 Nc6 7.Bc3 Nd5 (7...Bb4 8.Qb3 Qe7 9.Bb5 Bc3 10.Bc6 bc6 11.Nc3=) 8.Bd5 (8.Qb3!? Be6 9.b5+/–) 8...Qd5= 9.Nf3 Bb4 10.Bb4 Nb4 11.Qa4 Bd7?? (better is 11...Qc6 12.Qc6 bc6=) 12.Qb4+– Bg4 (12...c5 13.Qb2 0–0 14.Nc3+–) 13.Nc3 (better is 13.Qg4 0–0+–) 13...Qe6 14.Qb7 Rd8 15.d4 Bf3 16.Qf3 0–0 17.0–0 Qc4 (17...c5 18.dc5 Rc8 19.Na4+–) 18.Rfc1 Qd3 19.Qe4 Qe4 20.Ne4 Rfe8 21.Ng3 Rc8 22.Rc6 (22.Rab1 a6+–) 22...Kf8 23.Rac1 a5 24.Rc7 Rc7 25.Rc7 Rb8 26.Rc1 Rb2 27.Ra1 Ke7 28.Ne4 a4 (28...h5 29.Nc5+–) 29.a3 f5 (29...Rc2 30.Nc5 Rc4 31.Nd3+–) 30.Nc5 Kd6 31.Na4 Rc2 32.Kf1 Kd5 33.Nc5 Kc6 34.a4 Kb6 35.a5 Ka7 36.a6 g5 (36...Rb2 37.f3+–) 37.g3 (37.Rb1 Ka8 38.Rb7 Ra2 39.Rh7 Ra1 40.Ke2 Ra2 41.Kf3 g4 42.Kg3 Ra1+–) 37...h5 (37...Rb2 38.h3+–) 38.Rb1 f4 (38...Ka8 39.Rb7+–) 39.gf4 gf4 40.Rb7 Ka8 41.Rh7 (41.Ne6 Rc1 42.Ke2 Rc2 43.Kd3 Rc6 44.Nc7 Rc7 45.Rc7 Kb8 46.a7 Kc7 47.a8Q fe3 48.fe3 Kd7 49.d5 Ke7 50.Qb7 Kf6 51.d6 Ke5 52.d7 Kf6 53.d8Q Kg6 54.h4 Kf5 55.Qe4) 41...h4 (41...fe3 42.fe3 Rh2 43.Na4 Rh1 44.Ke2+–) 42.Rh4 f3 43.Ke1 (43.Nd3!? Ra2+–) 43...Re2 44.Kd1 Rf2 45.Rf4 Rf1 46.Kd2 f2 (46...Rf2 47.Kd3+–) 47.Ke2 Rh1 48.Kf2 (better is 48.Rf2 Rc1+–) 48...Rh2 49.Kf3 Rh3 50.Ke4 Rh7 51.Kd5 Rg7 52.Kc6 Re7 53.e4 Rg7 54.d5 Rh7 55.d6 Ka7 56.e5 Rg7 57.e6 Rh7 58.Rf7 1–0. Fournier,Frederic (1690) – potyra, Active, 2008.

5.Be5 Nc6 6.Bc3 Bb4 7.cd5 Bc3 8.Nc3 Nd5 =.

5.Nf3 Bb4 6.Qa4 Nc6 7.Ne5 +=.

5.Nf3 e4 6.Nd4 Na6 7.c5 Nb4 8.Qa4 Nc6 9.Bb5 Bd7 10.Nc6 bc6 (10...Bc6? 11.Bc6 bc6 12.Qc6 Nd7 13.Bd4+–) 11.Bc6 Be7 (worse is 11...Bc5 12.Bf6 gf6 13.Nc3+–) 12.Bf6 Bf6 (12...gf6? 13.Nc3 Rc8 14.Nd5+–) 13.Nc3 Rb8 14.0–0–0 Bc6 (14...Qe7!?=) 15.Qc6+= Qd7 16.Qd5 Qd5 17.Nd5 Kd7 18.Nf6 gf6 19.d4 Rhg8 (19...ed3 20.Rd3 Ke6 21.Rb3+=) 20.g3+/– Rb5 21.Kc2 Ra5 22.Ra1 Rb8 23.Rhb1 Rb1 24.Kb1 (24.Rb1?! Ra2 25.Kc3 Rf2=) 24...Ra3 25.Kb2 Rd3 26.Rc1 Kc6 27.Rc3 Rd2 28.Rc2 Rd3 29.Kc1 Kd5 (29...Ra3 30.g4+/–) 30.Rd2 Rc3 31.Kb2 Rc4 32.a3 1–0. Rudbeck,Joergen – Hanison,Bernard, corr ICCF TT–4–90 SF, 1995.

5.Qa4 Bd7

6.Qb3 dc4 7.Bc4 c5? (better is 7...Qe7=) 8.Bf7+– Ke7 9.Nf3 (better is 9.bc5 Nc6 10.a3+–) 9...a5? (better is 9...Nc6+–) 10.bc5 Qc7 (10...e4 11.Ng5 a4 12.Qb7+–) 11.Ne5 Nc6 (11...a4 12.Qc4+–) 12.Nd7 (12.Nd7 Qd7 13.Be6+–) 1–0. pcmvr (1700) – koth, net–chess.com, 2006.

6.Qb3 Nc6 7.a3 a5 8.cd5 a4 white timed out 0–1. chessxliv (2140) – imreallylousy (2180), net–chess.com, 2014.

6.Qb3 Nc6 7.Nf3 e4 8.Ne5+=.

6.b5 Bd6=.

5.cd5 Qd5

6.a3 Bd6 7.Nc3 Qe6 8.Nf3 Nc6 9.Bd3 0–0 10.Ng5 Qg4 11.Qg4 Ng4? (better is 11...Bg4!? 12.f3 Bh5+=) 12.Bh7+/– Kh8 13.Bd3 f5 14.Nb5 f4 (14...e4 15.Nd6 cd6 16.Be2+–) 15.Bc4 Bd7 (15...Nh6+–) 16.Nd6 cd6 17.Nf7 Kh7 18.Nd6 fe3 (18...f3 19.0–0 Rf6 20.Bd3 (20.Nb7?! fg2 21.Bd3 Bf5 22.Bf5 Rf5+–) 20...Kg8 21.Nb7 fg2 22.Kg2+–) 19.fe3 Rf6 (19...Rab8 20.h3 Nf6 21.Bd3 e4 22.Bc2+–) 20.Nb7 Raf8 (20...Be6 21.Be2 Raf8 22.Nc5+–) 21.b5 Ne7 22.h3 Nh6 (22...Rh6 23.Rf1 Rf1 24.Bf1+–) 23.Nc5 Bc8 (23...Be8 24.Be5 Rf2 25.Rg1+–) 24.Be5 Rf2 (24...Rg6 25.g4 Nf7 26.Bf4+–) 25.g4 Rg2 (25...R2f3 26.Ne4 Kg6 27.Bd6+–) 26.Bd6 Re8 (26...Nhg8 27.Bf1 Rgf2 28.Ne4+–) 27.Bf1 (27.Bf1 Nef5 28.gf5+–) 1–0. b4_player – anony, internet, 2014.

6.Nc3 Qd8 7.Nf3 Bd6 8.a3=.

6.Nc3 Qe6 7.a3 Bd6 8.Nb5 0–0 9.Nd6 cd6 10.d4 e4 11.Rc1 d5 12.f3 (12.Ne2 Qd6=) 12...Nbd7 (12...ef3 13.Qf3 Re8 14.Be2+=) 13.fe4 (13.Rc3 Nb6+=) 13...de4 (13...Ne4 14.Bd3+=) 14.Bc4 Qf5 15.Ba2 Ng4 16.Qe2 b6 (16...Qg5 17.g3=) 17.Nh3+= Ba6?? (better is 17...a5 18.b5 Ndf6+=) 18.Qa6+– Ne3 19.Qe2 Ng4 20.Rf1 Qh5 21.Nf2 (21.Qe4? Rae8 22.Qe8 Re8 23.Kd2 Ndf6–+) 21...Qh2 (21...Ndf6 22.Ng4 Qh4 23.g3 Qg4 24.Qg4 Ng4+–) 22.Ng4 Qg3 23.Kd2 e3 (23...Rae8 24.Bd5+–) 24.Ne3 1–0. Bonetti,Shane – dlx345, ICC, 2002.

6.Nf3 Nc6 7.b5+= Na5 (7...e4 8.bc6 ef3 9.Qf3 Qf3 10.gf3+/–) 8.Be5+/– Bb4 (8...Qd8 9.Nc3+/–) 9.Bf6 gf6 10.Nc3 (10.Qa4 c5 11.a3 Nb3 12.ab4 Na1 13.b6 Ke7 14.Qa1 Bg4+–) 10...Bc3 11.dc3 Qh5? (better is 11...Be6+–) 12.Qa4 b6 (12...Bg4 13.Be2 0–0–0 14.Qa5 Kb8+–) 13.Qe4 Kd8 (13...Kf8 14.Qa8 Kg7 15.Qa7 Bb7+–) 14.Rd1 Bd7 15.Qa8 Ke7 16.Qh8 Qc5 17.Qh7 Qc3 18.Nd2 f5 19.Be2 (19.Qh4 Ke8+–) 19...Be6 20.Kf1 (20.Qh4 Ke8+–) 20...Qc2 21.Qh4 f6 22.Qh7 Kf8 23.Nb3 (23.Ne4 Qd1 24.Bd1 fe4 25.Qc7 Bf7+–) 23...Nb3 24.Rd8 1–0. Woschkat,Karl_Heinz – Hill,Charles, casual, 1995.

6.Nf3 Bg4!? 7.Qa4 Bd7 =.

5.Be5 Bb4

6.cd5 0–0 7.Nc3 Bc3 8.dc3 Nd5 9.Bc4 Be6 10.Bd5 Bd5 11.Nf3 Nc6 12.Bc7 Qc7 13.Qd5 Rad8 14.Qc4 h6 15.0–0+= Qd6 16.Rab1 b5? 17.Rb5+– Rc8 18.Qb3 Rb8 19.a4 a6 20.Rb6 Rb6 21.Qb6 Rb8 22.Qa6 Qc5 23.Nd4 Rb6 24.Qc8 Kh7 25.a5! Rb8 26.Qc6 (26.Qc6 Qa5 27.c4+–) 1–0. Wall,Bill – Bgtait, internet, 1999.

6.Nf3 Nc6 7.Bb2 0–0 8.Nc3 Re8 9.Be2 Bg4 10.0–0 Ne4?? 11.cd5+/– Nb8 12.Ne4 Re4 13.Qb3 Bd6 14.Qb7 Nd7 15.Qb3 (15.Qb3 Rb8 16.Qc2+–) 1–0. inspector (2330) – hasant (1915), net–chess.com, 2008.

4.e3 Bd7

5.b5 Be6 6.Nf3 Be7 7.a4 0–0 8.Nc3 Nbd7 9.Be2 a6 10.0–0 a5. Mantu,Eugen (2440) – Daniel,Achim (1890), BdF Pyramide, 2007.

5.Qc2 c5 6.b5 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nf3 0–0 11.d4 ed4 12.ed4 d5 13.Be2 dc4 14.Qc4 Be6 15.Qc2 cd4 16.0–0 Nd5 17.Nd4 Nb4?? (17...Nd7 18.Rd1+=) 18.Ne6?? (better is 18.Qb2 Bd5 19.Nc2+–) 18...fe6 (better is 18...Nc2!? 19.Nd8 Rd8+=) 19.Qe4+– Qb6 20.Qg4 g6 21.Bc4 Nd5 22.Bd4 Qd6 23.Re1 Rf4 24.Qd1 (24.Qe6? Qe6 25.Re6 Rd4 26.Bd5 Rd5–+) 24...Qb4 25.Qe2?? (better is 25.Bd5 Rd4 26.Be6 Kg7 27.Qe2+/–) 25...Rd4–/+ 26.Qe6 Kf8 27.Bf1? (better is 27.Bd5!? Rd5 28.Nc3–+) 27...Nf4 28.Qe3 Nd7 29.Nc3 Nf6 30.Na2 Qd6 31.g3 N4h5 32.Qh6 Kg8 33.Qe3 Kf7 34.Bc4?? (better is 34.Nc3–+) 34...Rc4 35.Qb3 Qd5 36.Nc3 Qc5 37.Na4 Qb4 (37...Qb4 38.Qb4 Bb4–+) 0–1. madik – nikloas, gameknot.com, 2008.

5.Qc2 Be7 6.b5 +=.

5.d4 ed4 6.ed4 Be7 7.Bd3 0–0 8.Ne2 a6 (8...d5 9.c5=) 9.0–0 c5 (9...d5 10.c5=) 10.bc5 dc5 11.d5 (11.Qb3 cd4 12.Bd4 Qc8=) 11...Bg4 (11...b5 12.Qc2=) 12.Nd2 Re8 13.f3 Bh5 (13...Bd7 14.Qc2+=) 14.Nf4 Bg6 (14...Bd6 15.Nh5 Nh5 16.Qb1+/–) 15.Ng6+/– fg6 (15...hg6 16.Qb3 Qc7 17.Ne4+/–) 16.Re1 (16.Qb3 b5+=) 16...Rf8 (16...Nbd7 17.Qb3+/–) 17.Qb3 Qd7 (17...Ra7 18.Rad1+/–) 18.Re6 (18.Qb6 Rf7+–) 18...Bd6 (18...Re8 19.Rae1 Kf7 20.Qb6+–) 19.Rae1 (19.Qb6 Bf4 20.Nb3 Bc7 21.Qc5 b6+–) 19...b5 (better is 19...Qc7!? 20.h3 Nbd7+/–) 20.cb5+– ab5 21.Bb5 Qc7 22.Nf1 (22.g3!? Rd8+–) 22...Nbd7 23.Bd7 (23.Bc6!? Rab8 24.Qc2 Rbe8+–) 23...Qd7 24.a3 (24.Bf6 Rf6 25.Qc2 Re6 26.de6 Qe7+/–) 24...Rab8 (24...Nd5 25.R6e4 Qf7 26.Rd1+=) 25.Qc3+= Qc7 (better is 25...Rb7+=) 26.Qc4?? (better is 26.Rd1+/–) 26...Rb2–+ 27.h3 (27.R1e2 Re2 28.Re2 Rb8–+) 27...h6 (27...Ra8 28.R1e3–+) 28.Ne3 Rbb8 (28...Rfb8 29.Nd1 Rd2 30.Ne3–+) 29.Qd3 Kh7 30.Nc4 Rbd8 31.R1e2 (31.Nd6 Rd6 32.Re7 Qa5–+) 31...Bg3 (better is 31...Bh2 32.Kh1 Rd5–+) 32.d6 Qb7 33.Rb2 Qc6 (33...Qf7 34.Rbe2–+) 34.Rb6 Qd5 35.Qe2?? (35.Qd5 Nd5 36.Rb7–+) 35...Qd4 36.Ne3 Bf4 (36...Nd5 37.Qc2 Ne3 38.Qg6 Kg8 39.Qg3 Nc4 40.Qf2 Nb6 41.Qd4 cd4 42.Re7–+) 37.Kf2 (37.Kh1 Bd6 38.Nf1 Rde8–+) 37...Be3 (better is 37...Nd5 38.Rb3 Be3 39.Ree3–+) 38.Qe3 Qe3 39.Re3 (39.Ke3?? Nd5 40.Ke4 Nb6–+) 39...Nd5 40.Rc6 Ne3 41.Ke3 Rf6 42.Kd3 (42.Rc5 Rfd6 43.Ra5 Re8 44.Kf4 Re2–+) 42...Rfd6 43.Rd6 Rd6 44.Kc3 Rd4 45.g3 (45.Kc2 g5 46.g3 c4–+) 45...g5 46.g4 (46.Kc2 c4 47.Kc3 Rd3 48.Kc4 Ra3–+) 46...Kg6 (46...Rf4 47.Kb2–+) 47.a4 (47.Kb3 Rd3 48.Kc4 Ra3–+) 47...Ra4 48.Kd3 Ra3 49.Ke4 c4 0–1. Fredek (2090) – Guest801812, Freundschaftspartie, 5m + 0s, 2005.

5.Nf3 a5 6.a3 (6.b5 e4 7.Nd4 c5=) 6...Be7+= 7.Qc2 (7.Nc3 ab4 8.ab4 Ra1 9.Qa1 c6=) 7...0–0= 8.d4 (8.b5 c6=) 8...ed4 (8...ab4 9.de5 de5 10.Ne5 ba3 11.Ba3 Ba3 12.Ra3 Ra3 13.Na3+=) 9.Nd4 ab4 10.ab4 Ra1 11.Ba1 c5 (11...Na6 12.Bc3=) 12.bc5 dc5 13.Nb5 (13.Nf5 Nc6 14.Bc3 Nb4 15.Bb4 cb4=) 13...Bb5 (13...Nc6 14.Bc3=) 14.cb5 Nd5 (14...Nbd7 15.Bd3=) 15.Bc4 (15.Bd3 Qa5 16.Bc3 Nc3 17.Qc3 Qa4=) 15...Nb4 (15...Qa5 16.Bc3 Nc3 17.Qc3= (17.Nc3? Bf6–+)) 16.Qb3 (16.Qe4 Bd6+=) 16...Nd7 (16...Bf6 17.Bf6 Qf6=) 17.Ke2 (17.0–0!?+=) 17...Bf6 (17...Nb6 18.Bc3+=) 18.Nc3 Nb6 19.Rd1 Qc7 20.Nd5? (better is 20.h3+=) 20...N4d5–+ (20...N6d5?! 21.Bd5 Nd5 22.Qd5 Ba1 23.Ra1+=) 21.Bd5 Nd5 (better is 21...Ba1 22.Ra1 c4–+ (22...Nd5?! 23.Qd5 Rd8 24.Qe4+=)) 22.Qd5+= Rd8 23.Qb3 (23.Qa2 Rd1 24.Kd1 Be7+=) 23...c4 (23...Ba1 24.b6 Qe7 25.Ra1+=) 24.Rd8 (24.Qa3 Rd1 (worse is 24...Qh2 25.Bf6 Qh5 26.f3+/–) 25.Bf6 gf6 26.Kd1 Qh2–/+) 24...Bd8 (24...Qd8!? 25.Qa4 c3–/+) 25.Qd1= Be7 26.f4 (26.Qd4 Bf8=) 26...h6 (26...c3 27.Qa4+=) 27.Bd4 (27.Be5 Qc8 28.Kf1 Qf5+=) 27...Qd7 28.Qa4 Qd5 29.Kf2 (29.Kd2 Bf6 30.Kc3 Bd4 31.ed4 Qg2=) 29...Kh7 30.Qc2 Kg8 (30...g6 31.b6=) 31.b6 (31.Qa4 Bd6 32.Qa8 Kh7=) 31...Bc5 (31...f5 32.Qc3=) 32.Qb2 (32.Qc3 Bd4 33.ed4 g5=) 32...Bd4 33.Qd4 (33.ed4 Qe4 34.Qd2 Qb1=) 33...Qd4 (33...Qc6 34.h4=) 4.ed4 Kf8 35.Ke3 f5?? (better is 35...Ke7 36.Kd2 Kd6+=) 36.d5+– Ke7 37.Kd4 Kd6 38.Kc4 g5 (38...Ke7 39.Kd4 Kd6 40.h3+–) 39.g3 (better is 39.fg5 hg5 40.Kd4+–) 39...g4 40.Kd4 h5 41.Kc4 Kd7 42.Kc5 Ke7 43.d6 Ke6 44.d7! Kd7 Theme: Deflection from d5 45.Kd5 (45.Kd5 Ke8 46.Ke6+–) 1–0. Fehr,Wolfgang – Pfarr,Michael, Unterfranken–ch HT–A, 1999.

5.Nf3 a6 6.Be2 Nc6 7.Qb3 Be7 8.0–0 Ne4 (8...Bg4!? 9.Nc3 e4=) 9.d4+= Bg4 10.h3 Bh5 11.de5 Ne5 (11...de5 12.c5 0–0 13.Bd1+=) 12.Be5 de5 13.Rd1 Bf3?? (better is 13...Qc8+=) 14.Rd8+– (14.gf3?! Nd6 15.c5 Bf8 16.cd6 Bd6+–) 14...Rd8 15.Bf3 Nd6 (15...f5 16.c5+–) 16.c5 Nb5 17.Bb7 0–0 18.a4 Na7 19.Nc3 (19.Ba6 Rb8+–) 19...a5 20.Nd5 (20.Nd5 Bg5 21.b5+–) 1–0. pcmvr (2875) – rodolfoiteixeira (2120), net–chess.com, 2009.

5.Nf3 Nc6 6.b5= Nb8 7.d4 e4 (7...ed4 8.Bd4 Be6 9.Bd3+=) 8.Nfd2 c6 (8...Bf5 9.Nc3+=) 9.Nc3+= d5 (9...Qa5 10.Qb3+=) 10.Qb3 Be6 11.bc6 bc6 12.Qb7 Nbd7 13.Qc6 Rc8 14.Qa4 Qb6 15.Ba3 Ba3 16.Qa3 dc4 17.Rb1 Qc6 18.Nb5 Kd8 19.Nd6 (worse is 19.Qa7 Ra8 20.d5 Bd5+=; 19.Na7?! Qa8 20.Rc1 Rc7+/–) 19...c3 20.N2c4 (20.Nc8?! cd2 21.Kd2 Qc8 22.Qa7 Ke7=) 20...c2 21.Rc1 Rb8 (better is 21...Rc7+/–) 22.Na5+– Qc7 23.Bb5 (23.Bb5 Bd5 24.Bc6 Bc6 25.Rc2+–) 1–0. Trkn – guest1149, ICC, 2004.

5.Nf3 e4 6.Nd4 =+.

5.Nf3 Be7

6.Nc3 0–0=.

6.Be2 0–0 7.0–0 (7.Nc3 e4 8.Ng5 Bf5=) 7...a6 (7...e4 8.Ne1+=) 8.Qc2= Nc6 9.a3 h6 (9...Bg4 10.Nc3=) 10.Nc3 (10.d4 ed4 11.Nd4 Re8+=) 10...Bg4 (10...Re8 11.d4 ed4 12.ed4+=) 11.Rad1 (11.Rfd1 Qc8+=) 11...Bh5 (11...Re8 12.d4 ed4 13.Nd4 Nd4 14.Rd4 Be2 15.Qe2+=) 12.Nh4 (12.d4 ed4 13.Nd4 Bg6+=) 12...Nh7 (12...Be2!? 13.Ne2 d5=) 13.Bh5+/– Bh4 14.Be2 (14.Bf3 Qd7+/–) 14...Be7 (14...Re8 15.b5 Na5 16.f4+/–) 15.Nd5 (15.d4 ed4 16.ed4 Nf6+/–) 15...Kh8 (15...Nf6 16.f4+/–) 16.b5 f5?? (better is 16...Nb8+/–) 17.d4 (17.bc6!? bc6 18.Ne7 Qe7+–) 17...Na5 18.de5 Bg5 (18...ab5 19.cb5 (19.Ne7?! Qe7 20.ed6 cd6+–) 19...Ng5 20.Qc7 Qc7 21.Nc7+–) 19.Qc3 ab5 (19...c6 20.ed6 Bf6 21.Nf6 Nf6 22.ba6 Ra6 23.Qe5+–) 20.ed6 cd6 (20...Bf6 21.dc7 Qc8 22.Nf6 Nf6 23.cb5 Re8+–) 21.Qg7 1–0. pierred (2595) – bar (1905), net–chess.com, 2008.

6.Be2 a5 7.b5 0–0 8.0–0 (8.d4 e4 9.Nfd2 c6 10.Nc3 cb5 11.cb5 d5 12.0–0 Bd6 13.Rc1=; 8.Qc2 Bg4 9.Nc3 Nbd7 10.0–0 Re8 11.d4 ed4 12.ed4 d5 13.c5=; 8.Nc3 Bf5 9.0–0 Nbd7 10.d4 c6 11.Rc1 Rc8 12.a3 Re8 13.Qd2=) 8...a4 9.d4 e4 10.Nfd2 c6 11.d5 cb5 12.cb5 Bf5 13.Nc4=.

6.Be2 a5 7.b5 a4 8.d4 (8.0–0 0–0 9.d4 e4 10.Nfd2 c6 11.d5 cb5 12.cb5 Bf5 13.Nc4=; 8.a3 e4 9.Nd4 0–0 10.d3 c5 11.bc6 bc6 12.Nc3 c5 13.Ndb5+=; 8.Na3 e4 9.Nd4 c5 10.Ndc2 Be6 11.0–0 0–0 12.d3 d5 13.de4=) 8...e4 9.Nfd2 Bf5 10.a3 Nbd7 11.Nc3 Nb6 12.Qc2 0–0 13.0–0+/–.

6.Be2 a5 7.b5 c6 8.a4 (8.Nc3 e4 9.Nd4 a4 10.bc6 Nc6 11.Ndb5 Qa5 12.Ba3 0–0 13.Nd6+=; 8.0–0 0–0 9.Nc3 e4 10.Nd4 a4 11.bc6 Nc6 12.Ndb5 Qa5 13.Ba3+=; 8.Qc2 Qc7 9.Nc3 a4 10.Ba3 cb5 11.cb5 Nd5 12.0–0 Be6 13.Rfc1=; 8.d4 e4 9.Nfd2 cb5 10.cb5 0–0 11.d5 a4 12.0–0 Bf5 13.Nc4=) 8...b6 (8...e4 9.Nd4 c5 10.Nc2 0–0 11.d4 Qc7 12.Nc3 Be6 13.0–0=) 9.0–0 (9.Nc3 0–0 10.0–0 Bf5 11.d4 e4 12.Nd2 cb5 13.Nb5+=) 9...c5 (9...0–0 10.Nc3 Bf5 11.d4 e4 12.Nd2 cb5 13.Nb5+=) 10.d4 (10.Nc3 0–0 11.Ng5 Ne8 12.Nge4 f5 13.Ng3+=) 10...e4 (10...cd4 11.ed4 e4 12.Nfd2+= Bf5 13.Qb3+=) 11.Nfd2+/– Ra7 (11...0–0 12.Qc2 Bf5 13.Nc3+/–) 12.d5 (12.Qc2 Bf5 13.d5+/–) 12...Bf5 (12...Bf8 13.Qc2+/–) 13.Nc3 Bf8 14.Qc2 (14.Qb1!? Re7+–) 14...Re7+/– 15.Rfc1 Bg6 16.Bf1 h5 17.Ne2 Nbd7 18.Nf4 Bh7 19.h4 Ne5 20.Qd1 Bf5 21.g3 (21.Be2 g6+=) 21...Qd7 22.Bg2 Bg4 (22...Kd8 23.Qc2+=) 23.Qc2 Nf3 (23...Bf5!?+=) 24.Bf3+/– Bf3 25.Bf6 gf6 26.Nf3 ef3 27.Kh2 Qg4 28.Qd1 Rg8 29.Ra3 Bh6 30.Rcc3 Re4 31.Qb1 f5 32.Qf1 (32.Qc1 Kd8=) 32...Bg7 33.Rc2 Bf6 34.Qh3 Be5 35.Rd3 (35.Qg4 hg4 36.Nd3 f6=) 35...Bf4 36.ef4 Kd7 37.Rcc3 (better is 37.Re3+=) 37...Rd4?? (37...Re1 38.Qg4 fg4 39.Re3–+) 38.Qg4 (38.Rd4 cd4 39.Rd3 Qh3 40.Kh3+=) 38...fg4+= (worse is 38...Rg4 39.Rd4 cd4 40.Rf3+/–) 39.Re3 (39.Rd4!? cd4 40.Rd3–/+) 39...Re8 40.f5 (better is 40.Re8!? Ke8 41.Rc2–+) 40...Re3 41.fe3 (41.Re3 Rc4 42.f6 Ra4 43.Re7 Kd8 44.Ra7–+) 41...Ke7 (better is 41...Rd2 42.Kg1 Rg2 43.Kf1 Rg3–+) 42.Kg1 (42.ed4 cd4 43.Rd3 Kf6 44.Rd4 Ke7 45.Re4 Kd8+–) 0–1. Kamaletdinov,Farit (1905) – Arslanov,Shamil M (1635), 8th Astrakhan Open A, 2013.

6.Be2 a5 7.b5 e4 8.Nd4 (8.Ng1 0–0 9.Nc3 Bf5 10.f3 Nbd7 11.fe4 Ne4 12.Ne4 Be4 13.Nf3=; 8.Ng5 h6 9.Nh3 Bh3 10.gh3 0–0 11.d3 Nbd7 12.Rg1 ed3 13.Qd3+=) 8...c5 9.bc6 bc6 10.d3 Na6 11.Nc3 ed3 12.Bd3 Nc5 13.Be2=.

6.Be2 e4 7.Nd4+=.

4.e3 e4

5.Bf6 gf6 6.Nc3 f5 7.d4 Bg7 8.Nge2 0–0 9.Qb3 Be6 (9...a5 10.b5+=) 10.Rd1 (10.Nf4 b6+=) 10...c6 (10...a5 11.ba5 Nc6 12.a6 Ra6 A) 13.Qb7 Rb6 (13...Bc4?! 14.Qb2=) 14.Qb6 cb6–+; B) 13.Nf4+=) 11.Nf4 d5? (better is 11...a5+=) 12.cd5+– (12.Ne6?! fe6 13.Be2 f4 14.ef4 Rf4+=) 12...cd5 13.Ncd5 Bd5 (13...Bd7 14.b5 a6 15.ba6 Qa5 16.Rd2+–) 14.Qd5 Qd5 (14...Qc8 15.Bc4+–) 15.Nd5 Nc6 (15...Nd7 16.Ne7 Kh8 17.Nf5+–) 16.b5 Rfd8 (16...Na5 17.Ne7 Kh8 18.Nf5+–) 17.bc6 Rd5 18.cb7 Rb8 19.Ba6 Ra5 20.Rc1 Rb7 (20...Bf8 21.Rc8 Rb7 22.Bb7 Rb5 23.Be4 fe4+–) 21.Bb7 Ra2 22.0–0 Rb2 23.Bd5 (23.Rc7 a5 24.Bd5 f4+–) 23...Rb5 24.Rc5 Rc5 25.dc5 Bc3 (25...Be5+–) 26.c6 Be5 27.Ra1! 1–0. pcmvr (2715) – pops (2295), net–chess.com, 2006.

5.d3 Bf5

6.de4 Be4 7.Nc3 Bf5 8.Qf3 Qc8 9.e4 Qe6 10.Qf5 Qf5 11.ef5 Be7 12.Nf3 Nbd7 13.Nb5 Bd8 14.Bd3 0–0 15.0–0 c6 (15...a6 16.Nbd4+–) 16.Nd6 b6 17.Rad1 Bc7 18.Bb1 (18.Ne4 Rfe8+–) 18...Rab8 (18...a5 19.b5 cb5 20.cb5+–) 19.Ne4 Rfd8 20.Nf6 gf6 21.Be4 c5 22.b5 Ne5 (22...Be5 23.Bc1+–) 23.Ne5 (23.Nd2 Bd6+–) 23...fe5 24.Bd5 Kg7 25.f4 f6 (25...Kf6 26.Rde1 Rd5 27.cd5+–) 26.fe5 fe5 27.f6 Kf8 28.Bc1 Rd6 (28...Bd6+–) 29.Bh6 Ke8 30.f7 Ke7 (30...Kd7 31.f8Q Rf8 32.Bf8+–) 31.f8Q Rf8 32.Bf8 1–0. Myslowski,Karol – Dincq,Michel, Paris Op Veteran, 1994.

6.de4 Be4 7.Nc3 Bg6=.

6.de4 Be4 7.Nf3 d5 8.b5 c6 9.Be2 Bc5 (9...Bb4 10.Nc3=) 10.0–0 0–0 11.Nbd2 a6 12.a4 a5 (12...Qe7 13.Nd4=) 13.Bd4 (13.Rc1 Bb4+=) 13...Bd6 (13...Bd4 A) 14.Ne4?? Ba1 (14...de4?! 15.Nd4 Qb6 16.Ra2=) 15.Nf6 Bf6–+ (15...gf6?! 16.Qa1 dc4 17.Bc4=; 15...Qf6?! 16.Qa1 Qa1 17.Ra1–/+); B) 14.ed4 dc4 15.Ne4 Ne4 16.Bc4 cb5 17.Bb5+=) 14.Ne4 (14.c5!? Be7 15.Nh4+/–) 14...de4+= 15.Nd2 cb5 (15...c5 16.Bf6 Qf6 17.Ne4 Bh2 18.Kh2 Qh4 19.Kg1 Qe4 20.Qd6+/–) 16.cb5 b6 (16...Nbd7!?+=) 17.Nc4+/– Nd5 (17...Bc5 18.Bf6 Qf6 19.Qd5+/–) 18.Nd6 Qd6 19.Rc1 (19.Bg7 Kg7 20.Bc4 Ra7 21.Bd5 Re7+–) 19...Nd7 (19...Rd8!?+/–) 20.Rc6+– Qb4 21.Rc4 (21.Bg7 Kg7 22.Qd5 Nc5+–) 21...Qe7 (21...Qd6 22.Ba1 Rfc8+–) 22.Qb3 (better is 22.Bg7 Kg7 23.Qd5+–) 22...Qe6?? (better is 22...Rfd8+=) 23.Rc6+– Qf5 24.Rd6 (better is 24.g4 Qg5 25.h4 Qh4 26.Qd5+–) 24...N5f6+/– 25.Bf6 Nf6 26.Rb6 Nd5 27.Rc6 Ne7 (27...Rfc8 28.Bg4! Qg4 29.Qd5+–) 28.Rc2 Nc8 (28...Rfd8 29.Rc4+–) 29.f3 (29.Rd1 Rb8 30.Qc3 Nb6 31.Qa5 Qe6+–) 29...Ne7 (29...Rb8+–) 30.fe4 Qe4 (30...Qg6 31.Bc4+–) 31.Rf4 (better is 31.Bf3 Qg6 32.Ba8 Ra8 33.Rcf2+–) 31...Qe5 32.g3 (32.Bc4!? Nf5+–) 32...Rad8+/– 33.Bf3 Nf5 34.Kf2 Rfe8 35.Re4 Qf6 36.Re8 Re8 37.Re2 (37.Rc7 Rd8+/–) 37...Qb6 Increasing the pressure on the isolated pawn on e3 (37...Qh6 38.Kg1+=) 38.g4 Nh4 39.h3 (39.Bd5 Qg6+/–) 39...Qf6 40.e4 (40.Qd5 Rd8 41.Qc6 Qe5+=) 40...Rd8 (40...Qf4 41.Rb2+=) 41.b6 (better is 41.Qe3!? Nf3 42.Qf3 Qd4 43.Kg2 Qa4 44.Rf2=) 41...Nf3–/+ 42.Qf3 Qb6 43.Kg2 Qd4 (43...Qb4!?–/+) 44.Qb3+= Re8 45.Qb5 Ra8 46.Qd5 Qa7 47.Rd2 h6 48.Qb3 Re8 49.Qc4 (49.Qb5 Qa8 (49...Re4?? 50.Rd8 Kh7 51.Qf5 g6 52.Qe4+–) 50.Qd5 Qa6=) 49...Qe3+= 50.Re2 Qf4 51.Kg1? (51.Qd3 Re5+=) 51...Rd8?? (51...Qg3 52.Rg2 Qh3 53.Qd4–+) 52.Qc2? (better is 52.Kg2+=) 52...Qg3–+ 53.Rg2 Qh3 54.Qe2 (54.Kf2 Qh4 55.Kf3 Qh1–+) 54...Qb3 (better is 54...Rd4–+) 55.Qa2?? (55.g5 hg5 56.Rg5 Qa4 57.Kh2–+) 55...Rd1 56.Kh2 Qb8 57.Kh3 (57.Rg3 Qf4 58.e5–+) 57...Qf4 (57...Rd3 58.Kh4 g5 59.Kh5 Rh3) 58.Qc2 (58.Qe2 Rh1 59.Rh2–+) 58...Rh1 59.Rh2 Qf3 60.Kh4 Qf6 (60...g5 61.Kh5 Qh3 62.Rh3 Rh3) 61.Kg3–+ Qe5 62.Kh3 Rh2 (62...Rh2 63.Qh2 Qe4 64.Qb8 Kh7–+) 0–1. valpa – Ironside, playchess.de, 2003.

5.Bf6 Qf6

6.Nc3 Bf5 7.Nge2 a5 8.Ng3 Qg6 9.Qb1 ab4 10.Nf5 Qf5 11.Qb4+/– (11.Qe4?! Qe4 12.Ne4 b3=; 11.Ne4?! Qa5=).

6.Nc3 Bf5 7.Nge2 c6 (7...Nc6 8.Ng3 Bg6 9.b5+=) 8.Qb1 (better is 8.Ng3+=) 8...Qe6? (better is 8...Qe7!?=) 9.Nd4+/– Qg6 (9...Qf6 10.Nf5 Qf5 11.b5+/–) 10.Nf5 Qf5 11.Ne4 (better is 11.b5+/–) 11...d5?? (better is 11...Qd7+/–) 12.Nd6!!+– Bd6 13.Qf5 0–0 14.cd5 cd5 (14...Rd8 15.dc6 Nc6 16.Bc4+–) 15.Qd5 (15.Qd5 Rd8 16.Qb7+–) 1–0. pcmvr (2870) – pops (2225), net–chess.com, 2008.

6.Nc3 Bf5 7.Nge2 Nc6 8.Qa4 (8.Ng3 A) 8...Nb4? 9.Qb1+– (9.Nge4? Be4 10.Qa4 Nc6–+); B) 8...Bg6+=) 8...Qd8 (8...Qe5!?=) 9.Ng3+= Bd7 10.Nge4 g6 (10...a6 11.Qb3+/–) 11.Be2 (11.b5 f5 12.Ng3 Ne7+/–) 11...Bg7 (11...f5 12.Ng3+/–) 12.0–0 (12.b5 Ne7+/–) 12...0–0 (12...f5 13.Ng3+/–) 13.b5 Ne7 (13...f5 14.Ng3 (worse is 14.bc6 Bc6 15.Qc2 fe4+=) 14...f4 15.Nge4+/– (15.bc6?! Bc3 16.dc3 Bc6=)) 14.d4 a6 15.Qb3 (15.Qc2 ab5 16.cb5 Bf5+/–) 15...ab5 16.c5 dc5 (16...d5 17.Nd5 Nd5 18.Qd5+/–) 17.Nc5 (17.dc5?! c6 18.Rad1 Qc7=; worse is 17.Bb5 Be6 18.Bc4 Bc4 (worse is 18...cd4 19.Be6 fe6 20.Qe6 Kh8 21.ed4+=) 19.Qc4 cd4 20.ed4 Qd4–/+ (20...Bd4?! 21.Rfd1 Nf5 22.Rab1=)) 17...Bc6 (17...Bc8!? 18.Bb5 b6+/–) 18.Bb5+– (worse is 18.Nb5 b6 19.Nd3 Bd5+/–) 18...Bb5 (18...b6 19.Ne6! fe6 20.Bc6 (worse is 20.Qe6 Kh8+=) 20...Nc6 21.Qe6 Kh8 22.Qc6+–) 19.Nb7 (19.Qb5?! b6 20.N5e4 h6+/–; 19.Nb5?! b6 20.Ne4 c5+/–) 19...Qb8 (better is 19...Qe8 20.Nb5 Rb8+–) 20.Qb5 Ra7 (20...c6 21.Qb3+–) 21.Rfb1 (21.Nc5 Qa8+–) 21...c6 22.Qb3 Rc8 (22...Qa8 23.Nc5+–) 23.a4 (23.Nc5 Qa8+–) 23...Rc7 (23...Nd5 24.Ne4+–) 24.Nc5 Qc8 (24...Qa8 25.Qb8 Rc8 26.Qa8 Rca8 27.g4+–) 25.a5 1–0. Wall,Bill – Goldwin, internet, 2004.

6.Nc3 Bf5 7.Nge2 Nc6 8.Ng3 Bg6 9.b5 +=.

6.Nc3 Bf5 7.Nge2 Nd7 8.Ng3 Qg6 9.Nf5 Qf5 10.d3 ed3 11.Bd3 Qe6 12.Nb5 Kd8 0–1. woschkat (2470) – pops (2430), net–chess.com, 2003.

4.e3 Bg4

5.Qc2 Nc6 6.b5 Ne7 7.d4 Bf5 8.Qb3 g6 9.Nd2 ed4= 10.Bd4 Bg7 11.f3 0–0 12.Bd3 Be6 13.Ne2 c6 14.Qb2 Nf5 15.g4 Nd4=+ 16.ed4 Re8 17.Nb3 Rb8 18.Kf2 cb5 19.cb5 Qb6 20.Kg3 Nd5 21.h4 Nb4 22.Qd2 Nd3 23.Qd3 Bd7 24.a4–/+ Be6 25.a5 Qd8 26.h5?? Qg5 27.Nf4 Rbc8 28.d5?? Bf5 29.Qd1 Ba1 30.Qa1 Re3 31.Kf2 Rb3 32.h6 Rc2 33.Ke1 f6 (33...f6 34.Kd1 Qf4 35.Rh2 Qh2 36.gf5 Qd2) 0–1. blackmardiemerdarultakzim (2250) – mic (2235), net–chess.com, 2005.

5.Qc2 Be7 6.Nc3 Nbd7 7.a3 Nb6 8.f3 Bh5 9.0–0–0 Nc4?? (better is 9...Bg6 10.e4 c5+=) 10.Bc4+– a5 11.b5 c6 12.a4 0–0 13.h4 (13.d4 Qb6+–) 13...Bg6 14.Qb3 d5 15.Be2 Nd7 (15...d4 16.ed4 ed4 17.Ne4 cb5 18.Nf6 Bf6 19.d3 (19.Qb5 Rc8 20.Bc3 dc3–+) 19...ba4 20.Qa4 Qc7 21.Kb1–/+) 16.d4 Rc8 (better is 16...ed4!? 17.ed4 Bh4+=) 17.h5+/– Bf5 18.g4 Be6 19.Rd2 (19.h6 g6+/–) 19...cb5 20.Qb5 Bb4 21.Rc2 Nb8 (21...ed4!? 22.Nd5 de3 23.Nb4 ab4 24.Qb4 Nc5+/–) 22.Qb7 Rc7 23.Qb5 Qd6 24.Kd1 (24.de5 Qe5 25.Qd3 Rfc8+–) 24...Rfc8? (24...ed4 25.ed4 Qg3 26.Bd3 Bc3 27.Bh7 (worse is 27.Rc3 Rc3 28.Bc3 Qg2–+) 27...Kh7 28.Qd3 (28.Bc3? Rc3 29.Rc3 Qg2–+; 28.Rc3 Rc3 29.Bc3 Qg2–+) 28...Kg8 29.Bc3+/– (worse is 29.Rc3 Rc3 30.Bc3 Qg2–+)) 25.Qd3 (25.de5 Qd8 26.Bd3 Bc3 27.Bh7 Kh8 28.Bc3 Rc3 29.Rc3 Rc3+/–) 25...Bd7 26.de5 Qe5 27.Na2?? Ba4?? 28.Be5+= Bc2 29.Qc2 Rc2 30.Nb4 ab4 31.Bb8 b3 32.Bd3+/– Ra2 33.Be5 b2 34.Bb2! Rb2 35.Ne2 Ra8 36.Nc1 Ra1 37.Re1 Rf2 38.Rf1 Rb2 39.Re1 f6?? 40.Re2 Rb3 41.Bc2 Rb4 42.Kd2 Ra6 43.Nd3 Rb8 44.f4 Rd6 45.Re1 d4 46.e4 Ra8 47.Bb3 Kf8 48.Bd5 Ra3 49.Rc1 Ke7 50.Rc2 Ra1 51.Nc1 g5 52.f5 h6 53.Kd3 Ra3 54.Kd4 Rg3 55.Nd3 Rg4 56.Rc7 Rd7 57.Rd7 Kd7 58.Bf7 Kd6 59.Nb4 Rg1 60.Nd5 g4 61.Nf4 g3 62.Ke3 g2–/+ 63.Ng2 Rg2 64.Kf3 Rg7 65.Bd5 Ke7 66.Kf4 Rg5 67.e5 fe5 68.Ke5 Rh5 69.Bf3 Rg5 70.Bd5 h5 71.Be4 h4 72.Bf3 h3 73.Be4 h2 74.Bf3 Rg1 75.f6 Kf8 0–1. combijack (1830) – aphgan (1675), gameknot.com, 2011.

5.Ne2 a5 A) 6.Qa4 Nbd7 7.ba5 (7.d4 ed4 8.Bd4 ab4 9.Qb4 c5 10.Bf6) 7...c6 8.d4 ed4 9.Nd4 Nc5 10.Qc2; B) 6.b5 B1) 6...Nbd7 7.d4 (7.Nbc3 Be7 8.d4 ed4 9.Qd4 Nc5 10.Rd1) 7...Be7 8.f3 Be6 9.Qc2 c6 10.e4; B2) 6...Be7 7.d4 (7.Nbc3 0–0 8.d4 Re8 9.Qc2 Be6 10.d5) 7...Nbd7 8.f3 Be6 9.Qc2 c6 10.e4.

5.Ne2 Nc6 6.b5 (6.a3 A) 6...Be7 7.b5 (7.d4 ed4 8.f3 Be6 9.Nd4 Nd4 10.Bd4) 7...Nb8 8.d4 Nbd7 9.f3 Be6 10.Qc2; B) 6...Be6 7.Qc2 (7.Ng3 h5 8.b5 Ne7 9.Nc3 h4 10.Nge4; 7.d3 Be7 8.b5 Nb8 9.g3 a6 10.Bg2) 7...Ng4 8.h3 Qh4 9.g3 Qh5 10.d4; C) 6...Qe7 7.Qa4 (7.b5 Nb8 8.d4 a6 9.h3 Be6 10.d5; 7.Qc2 Qe6 8.f3 Bh5 9.e4 Be7 10.d4; 7.d4 ed4 8.f3 d3 9.Qd3 Ne5 10.Be5) 7...e4 8.Bf6 Qf6 9.Nbc3 a5 10.Ng3; D) 6...d5 7.cd5 (7.h3 Be6 8.c5 Be7 9.d4 ed4 10.Nd4; 7.f3 Be6 8.cd5 Qd5 9.d4 Rd8 10.e4; 7.Qa4 a6 8.cd5 Qd5 9.d4 Rd8 10.Nbc3) 7...Qd5 8.Nbc3 Qd8 9.b5 Ne7 10.d4) 6...Nb4 (6...Nb8= 7.d4 (7.Nbc3 Be7 8.d4 0–0 9.h3 Be6 10.d5; 7.Qc2 Nbd7 8.d4 ed4 9.Nd4 Ne5 10.f4; 7.a3 Be7 8.d4 Nbd7 9.f3 Be6 10.Qc2) 7...e4 8.Qc2 c6 9.bc6 bc6 10.Nec3) 7.d3 (7.Qb3 d5 8.c5 (8.Be5?? dc4 9.Qc4 Nd3 10.Qd3 Qd3–+) 8...Bc5 9.a3+/– Qe7 10.ab4) 7...Qd7?? (better is 7...d5 8.a3 dc4 9.ab4 Bb4 10.Nd2–+ (10.Bc3 Bc3 11.Nbc3 cd3–+)) 8.a3+/– Be2 (better is 8...Nbd5!? 9.cd5 Qb5+/–) 9.Qe2+– (worse is 9.Ke2 Nbd5 10.cd5 Qb5+–) 9...Qg4 (9...Nd3 10.Qd3 Be7+–) 10.ab4 Qe2 (10...Qe6 11.Nc3+–) 11.Be2 g6 (11...Kd7+–) 12.Bf3 c6 (12...d5 13.Be5 Bb4 14.Ke2+–) 13.bc6 bc6 (13...b6+–) 14.Bc6 (14.Bc6 Ke7 15.Ba8+–) 1–0. Bonetti,Shane – eloq, ICC, 2002.

5.Nf3 e4 6.h3 Bh5 7.g4 Ng4 8.hg4 Bg4=+ 9.Bg2 ef3 10.Bf3 Bf3 11.Qf3 Nc6 12.b5 Ne5 13.Qb7 Be7 14.Be5 de5 15.Qc6 Kf8 16.Nc3 Bb4 17.0–0–0 g6 18.a3 Bd6 19.c5+/– Be7 20.Rhf1 a6+= 21.a4 ab5 22.Nb5 Ra4–/+ 23.Nc7?? Ra1 24.Kb2–/+ Qb8?? 25.Ka1+– Kg7 26.Na6 Qa7? 27.d4 Rb8? 28.Rb1 Rd8 29.Rb7 Qa8 30.d5 Bf6 31.e4 Bg5 32.Rfb1 Rc8 33.Qb6 Re8 34.Rb2 Qc8 35.Ra2 Qg4 36.Qb1 (36...Ra8 37.Nb4 Ra2 38.Ka2+–) 1–0. lidl6 – goldenbear, Live Game Caissa's Web, 2004.

5.Qb3 Be7

6.d4 ed4 7.ed4 0–0 8.Bd3 c6 9.Ne2 Na6 10.0–0= Nc7 11.Ng3 Be6 12.Qc2 b5 13.c5 Ncd5=+ 14.a3 g6 15.Re1 Nf4 16.Bf1 d5 17.Bc1 N4h5 18.Bg5 Ng3= 19.hg3 a5 20.Nd2 a4 21.Nf3 Kg7 22.Qc1 Ng8 23.Be7+= Ne7 24.Ne5 Rc8 25.f3 Nf5 26.Kf2 Nd4 27.Qc3 Nb3 28.Nc6 Qf6 29.Qf6 Kf6 30.Na7 Ra8 31.Nb5+= Na1 32.Ra1 Rfc8 33.Ke3+/– h5 34.Kd4 Rc6 35.Nc3+– Rac8 36.Na4 (36.Nd5?! Bd5 37.Kd5 Re6+/–) 1–0. einaar (2515) – fassbinder (1905), net–chess.com, 2008.

6.Be2 0–0+=.

6.Nf3 0–0 7.Nc3 Nbd7 8.d3 (8.Be2 a5+=) 8...c6 (8...a5 9.h3 Bf3 10.gf3 ab4 11.Ne4–/+) 9.Be2 h6 (9...a5 10.h3 Bf3 11.Bf3 ab4 12.Qb4–/+) 10.0–0= Be6 (10...a5 11.a3=) 11.d4 Qc7 (11...e4 12.Nd2 d5 13.a3=) 12.a4 (12.e4 a5=) 12...a5 (12...e4 13.Nd2 d5 14.cd5 Nd5 15.Nce4 (15.Nde4 Ne3 16.d5 Nf1 17.Rf1 cd5 18.Nd5 Bb4–/+) 15...Bb4 16.Ba3 Bd2 A) 17.Bf8? Nc3 18.Bd6 Bb3 19.Bc7 Ne4–/+ (19...Ne2?! 20.Kh1+=); B) 17.Nd2+=) 13.b5 c5 (13...e4 14.Nd2 d5 15.cd5 cd5 16.Ba3 Ba3 17.Qa3=) 14.de5 (14.Nd5 Bd5 15.cd5 cd4 16.ed4 e4+=) 14...de5 15.Rfd1 (15.Nd5 Bd5 16.cd5 Rfd8+=) 15...e4= 16.Nd2 Ng4 (16...Bf5 17.Nd5 Nd5 18.cd5+=) 17.Nf1 (17.Bg4 Bg4 18.Nd5 Qd8+=) 17...f5 (17...Bd6 18.Ng3 Bg3 19.hg3+=) 18.Bg4 fg4 19.Ne4 Rf7 (19...Rae8 20.Nfd2+/–) 20.Qc3 (20.Re1 Ne5+/–) 20...Raf8 (20...Nb6 21.Nfd2+/–) 21.f4 (21.Nfg3 Nb6+/–) 21...gf3= 22.gf3 Nf6 23.Nfg3 Ne4 (23...Ne8 24.f4+=) 24.Ne4 Bh4 (24...Bf6 25.Nf6 Rf6 26.Rf1+=) 25.f4 (25.b6 Qe7 (25...Qb6? 26.Rd6 Qc7 27.Re6+–) 26.Ba3 Rf5+=) 25...Bf5 (25...b6 26.Qc2+=) 26.Ng3 (26.Nd6 Bf6 27.Qd2 Bb2 28.Qb2 Rf6 29.Nf5 Rf5+=) 26...Qc8 (26...Bg4 27.Rd2=) 27.Rd2 (27.Qa5 Bg3 28.hg3 Be4+=) 27...Bh3 (27...Bg3 28.Rg2+=) 28.e4 (28.Qa5!? Re8 29.Qc3+=) 28...Qg4= 29.f5 Re7 (29...Re8 30.Re1=) 30.Re1 (better is 30.Rad1=) 30...Bf6?? (better is 30...Rf5 31.Rd8 Kh7 32.ef5 Re1 33.Qe1 Bd8=) 31.Qa5+/– Bb2 (31...Bh4 32.Rd3+–) 32.Rb2 h5 33.Qb6 h4 34.Qc5 Ref7 (34...Rd7 35.Qe3+=) ˝–˝. Kesmaecker,Philippe (2290) – Allen,David JC (2250), Istanbul, 2000.

5.Qc2 a5

6.b5= c6 A) 7.d4 cb5 (7...Nbd7 8.h3 Bh5 9.Nc3 Be7 10.Bd3 ed4) 8.cb5 Nbd7 9.Nd2 Rc8 10.Qd3 ed4; B) 7.Be2 cb5 (7...Be6 8.bc6 bc6 9.d4 ed4 10.Bd4 c5; 7...Qc8 8.Qa4 Be7 9.d4 e4 10.d5 0–0; 7...Nbd7 8.Bg4 Ng4 9.Nc3 Nb6 10.d3 d5 ) 8.Bg4 Ng4 9.cb5 Nd7 10.Nf3 Rc8.

6.b5= Qd7 7.Be2 Bf5 (7...Be7 8.Bf3 c6 9.Nc3 0–0 10.Na4 Bd8) 8.d3 Be7 9.Nf3 0–0 10.0–0 Bg4.

6.b5= Nbd7 7.Nc3 (7.Be2 Be2 (7...Be6 8.Nf3 Be7 9.Ng5 0–0 10.f4 h6; 7...c6 8.Bg4 Ng4 9.Nc3 Nb6 10.d3 d5) 8.Ne2 Be7 9.0–0 c6 10.d4 cb5; 7.d4 ed4 8.Bd4 Be7 9.Be2 0–0 10.Nf3 Nc5) 7...Nc5 (7...Be7 8.Be2= 0–0 9.Bg4 Ng4 10.Nf3 Nb6; 7...Nb6 8.Be2 Be6 9.d3 a4 10.Nf3 Be7) 8.a4 (8.Be2 Qd7= 9.d4 Bf5 10.Qd1 ed4; 8.d4 ed4 9.ed4 Qe7 10.Be2 Ne6) 8...Qd7 (8...e4 9.f3 Bf5 10.fe4 Nfe4) 9.e4 (9.f3 Bf5 10.e4 Bg6) 9...g6 (9...Be7 10.Be2+= 0–0) 10.f3= (10.Be2 0–0–0) 10...Be6 11.Nd5 Bd5 (11...Qd8 12.d4 ed4 13.Bd4=) 12.cd5+= Bg7 13.Rc1 Nh5 14.g3 f5 15.Bh3 Qf7 (15...0–0 16.Ne2=) 16.d3 (16.Ba3 b6+=) 16...0–0–0 (better is 16...0–0!?=) 17.Ne2 Kb8 18.0–0 Rdf8 (18...Bh6 19.f4+=) 19.d4 ed4 20.Nd4 Rhg8 (20...Qe8 21.Rfe1 (21.ef5?! Qe3 22.Qf2 Qf2 23.Rf2 Nd3=) 21...fe4 22.Re4+/–) 21.Rcd1 (21.Qc4 fe4 22.fe4 Qe8+/–) 21...Qe7 (21...Nf6!?+=) 22.ef5+/– Bd4 (22...Qe3 23.Kg2+/–) 23.Bd4 gf5 24.Rfe1 Qg5 25.Bg2 Re8 (25...f4 26.g4 Nf6 27.Bc5 dc5 28.Qc5+/–) 26.Bf2 (26.Bc5!? dc5 27.Qc5+/–) 26...b6 (26...Re1 27.Be1 f4 28.g4+=) 27.Bc5 dc5 28.f4 Qf6 29.Qf2 (29.Re8 Re8 30.Qd3 Qd6+/–) 29...Qd6 30.Qf3 Ng7?? (30...Re1 31.Re1 Ng7 32.Qe3+=) 31.Re5 (better is 31.Re6+–) 31...Re5 (31...Rd8!?+=) 32.fe5+/– Qe5 33.d6! Qe4 (33...cd6 34.Qb7) 34.Qc3 Qe8?? (34...Qe2 35.Bf3 Qe6+–) 35.Bd5 (35.d7 Qe7 36.Qf3+–) 35...Ne6 36.dc7 (36.Re1!? cd6 37.Re6 Qd8+–) 36...Nc7 37.Bg8 Qg8 38.Qf6 (38.Rd6 Ka7 39.Rd7+–) 38...Qg6?? (better is 38...Qb3 39.Qb6 Kc8+–) 39.Qd8 Kb7 40.Rd7 1–0. Sinozerski – Uzbekov, Voronezh, 1974.

6.b5= Be7 A) 7.Be2 Qd7 (7...Be6 8.Nf3 0–0 9.0–0 a4 10.Ng5 Bc8; 7...Qc8 8.Nf3 e4 9.Bf6 ef3 10.Bg7 fg2) 8.Bf3 c6 9.Nc3 0–0 10.Qa4 Be6; B) 7.Nc3 0–0 (7...Qd7 8.Be2 Be2 9.Nge2 Qg4 10.Ng3 Qc4) 8.Be2 Be2 9.Nge2 Qc8 10.0–0 Qe6; C) 7.d4= ed4 8.Bd4 0–0 9.Be2 c5 10.Bb2 d5.

5.Be2 Qd7

6.Nc3 c6 7.a4 Be2 8.Nge2 Qg4 9.Ng3 Nbd7 10.Qg4 g6 11.Qd1 Bg7 12.0–0 0–0 13.Qc2 Rfe8 14.Nce4 Bf8 15.Nf6 Nf6 16.Ne4 Kg7 17.Nf6 Kf6 18.f4 Kg7 19.fe5 de5 20.d4 Bd6 21.c5 Bc7 22.Qf2 Re7 23.Qf6 1–0. algernon (2440) – grahamtrue (2270), net–chess.com, 2014.

6.Nf3 Be7 7.h3 White threatens to win material: h3xg4 7...Be6 (7...Bf3 8.gf3 Bd8 9.b5=) 8.d3 Controls e4 8...h6 Secures g5 9.Nbd2 0–0 (9...a5 10.ba5 Ra5 11.Bc3=) 10.e4 (10.Qc2 a5 11.ba5 Ra5=) 10...c6 (10...Nh5 11.Qb3=) 11.d4 ed4 12.Nd4 c5 13.Ne6 (13.Nc2 Re8=) 13...fe6 (13...Qe6 14.bc5 dc5 15.Bf3=) 14.b5 This push gains space 14...e5 (14...Nh7 15.Qa4=) 15.0–0 Black's piece can't move: b8 15...Qe6 (15...Bd8 16.a4+=) 16.f4 (better is 16.Qc2!?+= is worthy of consideration) 16...ef4+= 17.Rf4 Nbd7 18.Qc2 Black has a cramped position (18.Rb1 Bd8=) 18...Nb6 (18...a6 19.Re1=) 19.Raf1 Rad8 (19...a6 20.Rf5=) 20.a4 White has a very active position (20.Qb3 Nbd7=) 20...Kh8 White has an active position (20...Rde8 21.a5 Na8 22.Qa4+=) 21.Rh4 White has a very active position (21.Qb3 Rde8=) 21...Nbd7 (21...Ng8 22.Rf8 Rf8 23.Rg4+=) 22.Nf3 (22.Rhf4 a6=) 22...Kg8 Black has a cramped position (22...Nh7 23.Rg4 Rf7 24.Bc3+=) 23.Bd3 (23.Nh2 Nh7 24.Rhf4 Rf4 25.Rf4 Bg5=) 23...Ne5 24.Ne5 de5 25.Bc1 (25.Be2!?+= should not be overlooked) 25...Kh7 ˝–˝. Hoehnemann,Hans Juergen – Mecker,Hans Joachim, Kurpfalz Seniors op, 2001.

6.Bg4 Ng4 7.Nh3 (7.d3 Be7=) 7...Be7 8.0–0 a6 (8...0–0 9.Nc3=) 9.Nc3 0–0 10.Rc1 (10.a3 Nc6=) 10...Nc6 11.Nd5 (11.a3 Rfe8=) 11...Nf6+= 12.a3 Nd8 (12...Rfe8 13.f4+=) 13.d4 ed4 (13...e4 14.Nf6 Bf6 15.f3+=) 14.Qd4 (14.Bd4 Nd5 15.cd5 c6+/–) 14...Ne6 (14...Re8 15.e4+=) 15.Qd3+/– (worse is 15.Nf6 Bf6 16.Qd2 Bb2 17.Qb2 a5=) 15...Nd5 (15...Ne8 16.Qf5+/–) 16.cd5 Ng5 (16...Nd8 17.Nf4+/–) 17.Nf4 Qg4? (better is 17...h6+/–) 18.h3+– Qd7 19.h4 Nf3 20.gf3 Bh4 (20...Rfe8 21.Qc4+–) 21.Kh1 1–0. pcmvr (2560) – luckylucciano (2130), net–chess.com, 2006.

5.Be2 Be2

6.Qe2 Be7 7.d3 Nc6 8.a3 0–0 9.Nf3 d5 10.cd5 Qd5 11.Nc3 Qb3 (11...Qe6 12.Rc1=) 12.0–0 (12.b5 Nd8+=) 12...Bd6 13.Rfc1 Rae8 14.Qc2 Qe6 15.e4 Nd4 (better is 15...a6!?=) 16.Nd4+/– ed4 17.Ne2 Qe5 18.f4 (18.Bd4 Qh2 19.Kf1 Qh1 20.Ng1 Ng4+=) 18...Qh5 19.e5 Ng4 20.h3 (20.ed6 Qh2 21.Kf1 Re2 22.Ke2 Qg2 23.Kd1 Ne3 24.Ke1 Qf1 25.Kd2 Qf2) 20...Ne3 21.Qd2 Qg6? (better is 21...Nd5!? 22.Bd4 Be7+–) 22.Nd4 Be5 23.Qe3 Bd6 24.Qf3 Re6 (24...c6+–) 25.Ne6 (better is 25.f5 Qh6 26.fe6 fe6+–) 25...fe6 26.Rc4 e5 (26...b5 27.Re4+–) 27.Qd5 Kh8 28.Be5 (better is 28.fe5 Be7 29.Qb7+–) 28...Rf5 (28...b6 29.Re1+–) 29.Qe4 (better is 29.Qd6! Qd6 (29...cd6?? 30.Rc8 Qe8 31.Re8 Rf8 32.Rf8) 30.Bd6 c6+–) 29...Be5 30.fe5 Qe6 (30...Qb6 31.Qd4 c6 32.e6+–) 31.Rc7 Re5 (31...Qb6 32.d4 Qc7 33.Qf5+–) 32.Rc8! Qc8 33.Qe5 h6 34.Re1 Kh7 (34...a6 35.Qd4 Kh7 36.Qe4 Kg8 37.Qg6+–) 35.Qe4 (35.Qe4 Kg8 36.Qg6+–) 1–0. Fournier,Frederic – harthbk1997, Active, 2007.

6.Qe2 Be7 7.Nf3 0–0 8.d3 Ng4 (8...d5 9.cd5 Bb4 10.Nbd2 Nd5 11.Ne5+=) 9.h3 (9.0–0 Nf6=) 9...Nh6 10.0–0 f5 11.Nbd2 Nd7 12.Rad1 Qe8 13.e4 a5 14.b5 Nc5 (14...Qg6 15.d4=) 15.d4+= ed4 16.Bd4 fe4 17.Ne4 b6 (17...Ne6 18.b6+=) 18.Rfe1 Nf5 (18...Ne6 19.Bc3 Nf4 20.Qe3=) 19.Ba1 (19.Bc5 bc5 20.Qd3 Qg6+=) 19...Qg6 (19...Ne4 20.Qe4 Qf7 21.Qc6+=) 20.Nc5+/– bc5 21.a4 (21.Qe6 Qe6 22.Re6 Rae8+/–) 21...Nh4+= 22.Nh4 Bh4 23.g3 Rae8 24.Qg4 Qg4 25.hg4 Bf6 26.Bf6 gf6 27.Kg2 Kf7 28.Kf3 Kg6 29.Re8 (29.Rh1 Re5=) 29...Re8 30.b6 cb6 31.Rd6 Re1 32.Rb6 Rc1 33.Rb5 Rc4 (33...Rc3!? 34.Ke2 Rc4 35.Ra5 Rg4+=) 34.Ra5+/– Kg5 35.Ra8 (35.Ra7!?+/–) 35...Rc3+= 36.Kg2 (36.Ke2 Kg4 37.a5 c4+=) 36...Kg4 37.a5 (37.Ra7 h6+=) 37...Ra3= 38.a6 f5 (better is 38...c4!?=) 39.a7+/– Kh5 40.Rf8 Ra7 41.Rf5 Kg6 42.Rc5 Ra2 43.g4 Rb2 44.Kg3 Rb4 (44...Rb3 45.f3+/–) 45.Rc6+– Kg7 46.g5 Ra4 47.f4 Ra5 48.Kg4 Rb5 (48...Ra4 49.Kf5+–) 49.Rc7 Kg8 50.f5 Rb4 51.Kh5 Rb1 52.Rc8 (52.f6 Rh1 53.Kg4 Kf8+–) 52...Kf7 53.Rc7?? (53.Rc4 Rh1 54.Kg4 Rg1 55.Kf4 Rf1 56.Ke5 Re1 57.Re4 Rg1+–) 53...Kg8 54.g6 (54.f6!? Rh1 55.Kg4 Kf8+–) 54...hg6 55.Kg6 Rb6?? (better is 55...Rg1 56.Kf6 Rb1+–) 56.f6 Rb8 57.Rg7 Kh8 58.Rh7 1–0. Sternik,Ryszard – Dogiel,Leszek, Ketrzyn POL, 1990.

6.Qe2 Be7 7.Nf3 e4 8.Nd4 Nc6 9.Nc6 bc6 10.a3 d5 11.Nc3 0–0 12.0–0 Re8 13.d3 Qd7 14.de4 Ne4 15.Ne4 de4 16.Rfd1 Qe6 17.Qc2 White prepares the advance c5 17...Bf6 18.Rd2 (18.Bf6!? Qf6 19.Rab1+/–) 18...Bb2= 19.Qb2 h6 20.c5 Rab8 21.Rad1 Qe7 22.Rd7 Qe5 (better is 22...Red8!? 23.Rd8 Rd8 24.Rd8 Qd8+/–) 23.Qe5+– Re5 24.Rc7 a6? (better is 24...a5 25.Rc6 ab4+/–) 25.Rc6 Rb5 (25...a5 26.ba5 Rd5+–) 26.Ra6 Kh7 27.Ra7 f6 28.Rdd7 Rg5 29.g3 h5 (29...Rb8 30.c6 Rc8 31.h4+–) 30.Rdb7 (30.Rdb7 Rb7 31.Rb7+–) 1–0. Fournier,Frederic (1810) – Polek (1770), Active, 2004.

6.Ne2 a5 7.b5 Nbd7 8.0–0 Be7 9.Qc2 0–0 10.d4 c5 11.Nd2 cd4 12.ed4 Qc7 13.Ng3 (13.Qf5 Rae8=) 13...Rac8 (13...d5 14.Rae1 Bd6 15.de5 Be5 16.b6+=) 14.Nf5 Rfe8 15.Qd3 (15.Rae1 Nd5=) 15...g6 (15...Nh5 16.Rfe1=) 16.Ne7+= Re7 17.Rac1 a4 18.Rfe1 Ree8 19.de5 (19.Qa3 Ra8+=) 19...de5 20.Ne4 Ne4 21.Qe4 (worse is 21.Re4 Nc5 22.Qe3 Ne4 23.Qe4 Red8–+) 21...Ra8 (21...Rcd8 22.Rcd1+=) 22.Qf3 (22.Rcd1 Red8+=) 22...Rad8 23.Red1 e4 (23...f5 24.Qe3+=) 24.Qc3 Ne5 25.c5 Qb8 (25...f6!?+=) 26.Rd4+/– a3 27.Ba3 Nd3 28.Rc2 Qc7 (28...Qe5 29.Rd8 Rd8 30.Qe5 Ne5 31.Kf1+–) 29.Rd6 Re5 (29...h6 30.b6 Qe7 31.Bb2 Nb2 32.Qb2 Rd6 33.cd6=) 30.b6 Qe7 (better is 30...Qc8!?+/–) 31.c6+– Rb5?? (31...Qh4 32.cb7 Rb5 33.Rd8 Qd8 34.Qc8 Rb1 35.Bc1+–) 32.Rd8 (32.Rg6 hg6 33.Be7 Rb1 34.Rc1 Nc1 35.Qe1 Ne2 36.Kf1 Re1 37.Ke1+/–) 32...Qd8 33.c7 Qc8 34.Qd4 Rb1 35.Rc1! (35.Rc1 Rc1 36.Bc1 Nc1 37.Qd8 Qd8 38.cd8Q (38.cd8N?! Ne2 39.Kf1 Nc3+/–) 38...Kg7 39.Qd4 Kg8 40.Qe4+–) 1–0. Psion – Psion, 4 Min/Zug, 1990.

6.Ne2 d5 7.Be5 Nc6 8.Bc3 dc4 9.b5=.

6.Ne2 Nbd7 7.0–0 d5 8.c5=.

6.Ne2 Nbd7 7.0–0 Be7 8.Nbc3 0–0 9.Qb3 Re8 10.d4 ed4 11.Nd4 h6 (11...a5 12.a3=) 12.a3 Ne5 13.f4 Ng6 14.Nf5 Bf8 15.Nd5 Nd5 16.cd5 Qd7 17.Qd3 Ne7 18.Ng3 f6 (18...c6 19.dc6 bc6 20.f5+=) 19.e4+/– c6 20.dc6 Nc6 (20...bc6 21.Rad1+/–) 21.Rac1 Qe6 22.Rfe1 (22.Rfd1 Rac8+/–) 22...Qa2 23.Re2 Qf7 24.Nf5 (24.b5 Na5+/–) 24...Re6? (better is 24...d5!?+=) 25.b5+– Ne7 (25...Na5+–) 26.Nd4 (26.Nd6?! Rd8 27.e5 fe5 28.fe5 Ng6+/–) 26...Rc8 (26...d5 27.Ne6 Qe6 28.Rce1+–) 27.Rc8 Nc8 28.Ne6 Qe6 29.Bd4 (29.f5 Qd7+–) 29...b6 (29...d5 30.e5 fe5 31.Re5+–) 30.f5 Qd7 31.Bf2 Ne7 32.Be1 Qc7 33.Rc2 Qd7 34.Bg3 Nc8 (34...Kh7+–) 35.Qc4 Kh7 36.Qc8 Qe7 (36...Qb5 37.Rf2 (37.Qf8?! Qb1 38.Kf2 Qc2 39.Kf3 Qd3 40.Kf4 Qd2 41.Kg4 Qe2 42.Kf4 Qd2 43.Kg4 Qe2 44.Kf4 Qd2=) 37...Be7 38.Qe6+–) 37.Rc7 Qe4 38.h3 Qe3 (38...Kg8 39.Rd7 d5+–) 39.Bf2 Qa3 40.Qf8 1–0. Janek – Kevin, internet free game, 2016.

6.Ne2 Nbd7 7.0–0 Be7 8.Nbc3 c5 9.bc5 Nc5 10.d4 ed4 11.ed4 Ncd7 12.Ng3 0–0 13.Nf5 Re8 14.Qb3 b6 (14...Nb6 15.Ne3+=) 15.Ba3+/– g6 (15...Bf8 16.Rae1+/–) 16.Ne7 Qe7 17.Nb5 Qe4 (17...Ne4!? 18.Rfe1 Qf6+–) 18.Bd6+– Rec8 19.Bg3 Qe2 (19...Rd8 20.Rad1+–) 20.Nd6 Ne4? (20...Rf8+–) 21.Rfe1 Ng3 22.Nc8 (22.Nc8 Rc8 23.Re2 Ne2 24.Kf1+–) 1–0. pierre – ahn, chess.com, 2007.

6.Ne2 Nbd7 7.0–0 Be7 8.d4 0–0 (8...e4 9.d5=) 9.Qc2 (9.Nd2 e4=) 9...ed4 (9...Re8 10.Qf5=) 10.Nd4 Ng4 (10...c5 11.Nf5=) 11.Nc3 (11.Rd1 Re8+=) 11...Rc8 (11...Bf6 12.Rfd1+=) 12.Nd5 Bg5 (12...Bf6 13.Rfd1+=) 13.Qf5 Nge5 14.f4 Nc4 15.fg5 (15.Qg5 f6 16.Qg3 Nb2+–) 15...Nb2 16.Qc2 Qg5 (16...c6 17.Nf4 (worse is 17.Qb2 cd5 18.Rf5 Ne5+=) 17...c5 18.Nf3+/– (18.Qb2?! cd4 19.Qd4 Nb6=)) 17.Nf5 (17.Rf5 Qd8 18.Qb2 c6+–) 17...Rfe8 (17...Rce8 18.Qb2 Re5 19.h4+–) 18.Qb2+– Re5? (better is 18...Ne5+–) 19.h4 (19.Nde7 Re7 20.h4 Qf5 21.Rf5 Rce8+–) 19...Qd8 20.Nde7! Kh8 (20...Re7 21.Qg7) 21.Nc8 Qc8 22.Rac1 Qd8 (22...Qb8 23.Qf2 Qd8 24.Qc2+–) 23.Qd4 (23.Qc3!? d5+–) 23...Nf6 24.Qf4 (better is 24.Qc4!? Nd5+–) 24...Nh5 (24...Nd5 25.Qg4 Qg8 26.b5+–) 25.Qf3 (25.Qf3 Rf5 26.Qf5+–) 1–0. Reis,Thomas – Lorenz,Oda, Augsburg op, 2001.

6.Ne2 Nbd7 7.d4 ed4 8.Qd4 g6=.

6.Ne2 Nbd7 7.d4 Be7 8.0–0 0–0 9.Ng3 Re8 (9...ed4 10.Bd4 Ne5 11.Qb3=) 10.Nd2 Bf8 (10...c6 11.Qc2=) 11.a4 (11.a3 g6=) 11...c6 (11...ed4 12.Bd4 c5 13.bc5 dc5 14.Bc3=) 12.a5 (12.Qc2 d5=) 12...d5 13.c5 (13.a6 b6=) 13...a6 (13...g6 14.de5 Ne5 15.Be5 Re5 16.a6+=) 14.de5 Ne5 15.Nf3 (15.Qb3 Qe7=) 15...Nc4 16.Bd4 Ne4 (16...g6 17.Nd2 Ne5 18.f4=) 17.Ne4 de4 18.Nd2 Nd2 (18...Qd5 19.Nc4 Qc4 20.Qg4=) 19.Qd2 Re6 (19...Qd5 20.Qc2=) 20.f4 (20.Rad1 g6+=) 20...ef3 21.Rf3 Qd5 22.Raf1 Re7 (22...f6 23.Qc2+=) 23.Qb2 (23.Qc2 Rd8+=) 23...g6 24.h4 (24.Qc2 Rae8=) 24...Rae8 25.Rh3 (25.Qf2 h5+=) 25...h5 26.Rg3 Bh6 27.Qf2 (27.Qc2 Qe4 28.Qf2 Kh7+= (28...Qh4 29.Rg6 fg6 30.Qh4+–)) 27...Qe6 (27...Kh7 28.Qf6+=) 28.Rf3 (28.Qc2 Qe4 29.Qf2 Kh7+= (29...Qh4?? 30.Rg6 fg6 31.Qh4+–)) 28...f5 29.Qg3 (29.Rh3 Qf7–/+) 29...Kh7–/+ 30.Qf2 (30.Kh2 Qc4–/+) 30...Qd5 31.g3 (31.Qg3 Qc4–/+) 31...Re4 32.Kh2 (32.Rb1 Rd8–/+) 32...Qe6 (32...Bg7 33.Bg7 Kg7 34.Qb2 Kg8 35.R1f2–/+) 33.Rd1 (33.Rb1 Re7–/+) 33...Re7 (worse is 33...Be3 34.Re3 Re3 35.Be3 Qe3 36.Qe3 Re3 37.Rd7 Kh6 38.Rb7+/–) 34.Rd3 (34.Rd2 Qb3–/+ (worse is 34...Be3 35.Be3 Re3 36.Re3 Qe3 37.Qe3 Re3 38.Rd7 Kh6 39.Rb7+/–)) 34...Kg8 (34...Qc4 35.Qd2 Rd7 36.Kh3–/+) 35.Qc2+= Rd7 36.Kg2 (36.Rd2 Rd5–/+) 36...Qd5 (36...Bg7 37.Bg7 Rd3 38.Qd3 Kg7 39.Qc3 Kg8 40.Qb2–/+) 37.Qb3 (37.Rd2 Ree7+=) 37...Kf7 38.Qd5 Rd5 39.Kf2? (better is 39.Rb3+=) 39...Bg7–+ 40.Rf4 (40.Rd1 Ke6–+ (40...Rdd4 41.ed4 Bd4 42.Kf1+=; 40...Bd4?! 41.ed4 Rdd4 42.Rd4 Rd4 43.Rf4–+)) 40...Be5 41.Re4 (41.Kf3 Bf4 42.gf4 Rd8–+) 41...fe4 42.Rd1 Ke6 43.Ke2 Bc7 (43...Bg3?! 44.Rg1 Bh4 45.Rg6 Kd7 46.Rg7 Kc8 47.Rg8 Kc7 48.Rg7 Kb8 49.Rg8 Rd8 50.Rg2=) 44.Rf1 (better is 44.Rg1!? g5 45.Rf1–/+) 44...Rf5–+ 45.Rg1 Rf3 46.g4 Rg3 47.Rf1 Rg2 48.Kd1 Rg4 49.Rf8 (49.Rf6 Ke7–+) 49...Bg3 50.Rf6 (50.Kc2 Bh4 51.Rb8 Be1 52.Rb7 h4–+) 50...Ke7 (50...Kd5 51.Rf7–+) 51.b5 ab5 (51...Bh4 52.ba6 Rg1 53.Kc2 ba6 54.Rc6 Rg2 55.Kb3+=; 51...cb5?! 52.Rb6 g5 53.Rb7 Ke6 54.Rb6 Kd5 55.hg5–/+) 52.a6 ba6 53.Rc6 Bh4 54.Ra6 Bg3 55.Ra7 Ke6 56.c6 Kd6 57.c7 Kd7 58.Bb6 Rg5 (58...g5 59.Ra2 Bc7 60.Ra7–/+) 59.Ra8–/+ Rd5 60.Ke2 (60.Kc2 Bc7 61.Ra7 Kc6 62.Bc7 Rd7–/+) 60...Bc7 61.Ra7 b4?? (better is 61...Kc6 62.Bc7 Rd7–+) 62.Rc7= Ke6 63.Rc4 Rb5 64.Bd4 (64.Re4 Kd5 65.Rd4 Ke6 66.Re4 Kd5 67.Rd4 Ke6 68.Re4=) 64...b3 (64...g5!?+=) 65.Bb2= Kf5 66.Kf2 g5 67.Kg3 Rd5?? (67...Rb6 68.Rc5 Kg6 69.Rc4=) 68.Bd4 (68.Rc6!? Re5 69.Be5 Ke5 70.Rc5 Kf6+–) 68...Rb5?? (68...g4 69.Rb4 Kg5 70.Rb3 h4 71.Kh2=) 69.Bb2 (better is 69.Rc6 Re5 70.Be5 Ke5 71.Rc5 Kf6 72.Kh3+–) 69...g4 (69...Rb6 70.Rc5 Kg6 71.Rc4=) 70.Kh4 Rd5?? (better is 70...Ke6!?=) 71.Bd4 (71.Rc6!? Re5 72.Kh5 g3+–) 71...Rb5?? (better is 71...Ke6 72.Rc6 Ke7+/–) 72.Bb2 Rd5 73.Bd4 Rb5 ˝–˝. Campos Calvo_Sotelo,Juan – Bautista Sanchez,Joan, Spanish Veterans Championship, 2016.

6.Ne2 Be7

7.Qc2 0–0 8.0–0 Nbd7 (8...c6 9.a3=) 9.f4 c6 (9...Re8 10.e4=) 10.Nbc3 Qb6 (10...Re8 11.a3=) 11.a3 d5 (better is 11...a5!?=) 12.fe5+/– Ne5 13.Nd5 cd5 14.Be5 Qc6 (14...Qe6 15.Bf6 Bf6 16.Nf4+/–) 15.c5+– Rfe8 16.Nd4 Qc8 (16...Qd7 17.Nf5 Bd8 18.Qb2+–) 17.Nf5 Qd7 (17...Qe6 18.Ne7 Re7 19.Bf6 gf6 20.Rf4+–) 18.Qb2 b6 (18...Qe6 19.Ne7 Qe7 20.Bf6 gf6 21.Rf6+–) 19.Ng7! Kg7 20.Bf6 (20.Rf6?! Bf6 21.Bf6 Kg8+/–) 20...Bf6 (20...Kg8 21.Rf3 Bf6 22.Qf6+–) 21.Rf6 (21.Qf6 Kg8 22.Rf5 h6+–) 21...Kg8 22.c6 Qc8 (22...Qc7 23.Qd4 Re6 24.Qg4 Kh8 25.Re6 fe6 26.Qe6+–) 23.Raf1 Re7 (23...Re6 24.Rf7 Rg6 25.b5+–) 24.R1f5 Qd8 (24...Re4+–) 25.Rg5 (25.Rg5 Kf8 26.Rd6+–) 1–0. marekt – s0g, internet, 2008.

7.Qc2 Nc6 8.b5 Nb8 9.d4=.

7.Qc2 Nbd7 8.0–0 0–0 A) 9.a3 c6 (9...c5 10.f4 Qb6 11.b5 a6 12.ba6 Ra6; 9...a5 10.d4 ed4 11.Nd4 ab4 12.ab4 Ra1) 10.Qf5 a5 11.Nbc3 Qb6 12.b5 Rac8; B) 9.d4 a5 (9...c6 10.e4 a5 11.a3 ab4 12.ab4 Qb6) 10.b5 c6 11.Nbc3 Rc8 12.Rfc1 Nb6.

7.Qc2 Nbd7 8.0–0 c6 A) 9.a3 d5 (9...0–0 10.d4 e4 11.Nd2 d5 12.Rfc1 Bd6; 9...a5 10.d4 ab4 11.ab4 Ra1 12.Ba1 Qb6) 10.f4 e4 11.d3 Nb6 12.c5 ed3; B) 9.d3 d5 (9...a5 10.ba5 Qa5 11.Ng3 0–0 12.Nf5 Rfe8) 10.a3 a5 11.c5 b6 12.cb6 Qb6; C) 9.d4 e4 (9...a5 10.ba5 Qa5 11.Nd2 0–0 12.Rfb1 Rfe8; 9...0–0 10.Nd2 a5 11.a3 ab4 12.ab4 Qb6) 10.d5 cd5 11.cd5 Rc8 12.Qa4 Nd5; D) 9.f4= a5 (9...e4 10.Nbc3 d5 11.a3 0–0 12.cd5 cd5) 10.ba5 Qa5 11.Nbc3 0–0 12.Ng3 Rfe8.

7.Qc2 Nbd7 8.0–0 Nf8 9.d4+= (9.e4 a5 (9...Ne6 10.a3 c5 11.Qa4 Qd7 12.Qd7 Kd7; 9...N8d7 10.d4 ed4 11.Nd4 a5 12.a3 0–0; 9...Ng6 10.d4 0–0 11.Rd1 Qc8 12.Nbc3 a5) 10.b5 c6 11.bc6 bc6 12.d4 Qc7; 9.f4 N8d7 (9...Ng6 10.e4 a5 11.b5 0–0 12.f5 Nh8; 9...a5 10.b5 Ng6 11.Nbc3 0–0 12.e4 Qd7; 9...ef4 10.Nf4 c6 11.Nc3 Ne6 12.a3 0–0) 10.Nbc3 0–0 11.Qf5 Nb6 12.Qd3 Qd7; 9.a3 a5 (9...Ne6 10.f4 ef4 11.Nf4 c6 12.Nc3 0–0; 9...N8d7 10.d4 a5 11.Rd1 ab4 12.ab4 Ra1; 9...Ng6 10.d4 0–0 11.Rd1 Qc8 12.e4 Qg4) 10.d4 N8d7 11.Rd1 ed4 12.Nd4 0–0) 9...Ng6 (9...N8d7 10.Rd1 a5 11.a3 ed4 12.Nd4 0–0; 9...ed4 10.Nd4 N8d7 11.Nc3 0–0 12.Nd5 a5; 9...a5 10.de5 de5 11.Rd1 N8d7 12.b5 Qc8) 10.Rd1 Qc8 11.Nd2 (11.e4 Qg4 12.Qa4 c6) 11...0–0 (11...Qg4 12.Ng3 a5) 12.a3 (12.e4 Qg4) 12...Qg4 13.Ng3 ed4 14.Bd4 Nh4 (14...Rfe8 15.Nf3+=) 15.Nde4+/– Ne4 16.Qe4 Qe4 17.Ne4 f5 18.Nd2 Bf6 19.Nb3 Ng6 20.c5 dc5 (20...f4 21.cd6 cd6 22.e4+=) 21.Nc5+/– (21.Bc5 Ba1 22.Bf8 Bb2=) 21...Bd4 22.Rd4 b6 (22...b5 23.Rc1+/–) 23.Ne6 Rf7 24.Rad1 h6 (24...Nf8 25.Nd8 Re7 26.Rd5+/–) 25.Rd7 Rc8 (25...c5 26.bc5 bc5 27.Rd8 Rd8 28.Rd8 (28.Nd8?! Rc7=) 28...Kh7 29.Rc8+/–) 26.Kf1 (better is 26.b5+–) 26...Ne5? (better is 26...a6+/–) 27.Rd8+– Rd8 28.Rd8 (28.Nd8?! Rf6+=) 28...Kh7 29.Nf8 Rf8 30.Rf8 Nc4 31.Rf7 (31.a4!? a5 32.ba5 Na5 33.Rf5 Nc4+–) 31...Na3 32.Rc7 Nb5 33.Rc6 Kg8 (33...h5 34.Ke2+–) 34.Ke2 Na3 (34...Kf7 35.Kd3+–) 35.Kd3 Kh7 36.Kc3 Nb5 (36...b5 37.Kd4+–) 37.Kb3 f4 (37...h5 38.Ka4 a6 39.Kb3+–) 38.Ka4 a6 (38...fe3 39.fe3 a6 40.Kb3+–) 39.ef4 h5 (39...Kg8 40.Rb6 Nc7 41.f5+–) 40.Rb6 Nc3 41.Ka5 Nd5 (41...Ne2 42.Ra6 Nf4 43.b5+–) 42.Ka6 1–0. Spiegel,Matthias – Nickel,Reimo, Mecklenburg–Vorpommern, 2000.

7.Qc2 Nbd7 8.a3 a5 A) 9.0–0 ab4 10.ab4 Ra1 11.Ba1 d5 12.d4 e4; B) 9.d4 ab4 10.ab4 Ra1 11.Ba1 0–0 12.0–0 ed4; C) 9.f4 ab4 (9...0–0 10.0–0 ab4 11.ab4 Ra1 12.Ba1 c6) 10.ab4 Ra1 11.Ba1 0–0 12.0–0 c6; D) 9.b5 c6 (9...0–0 10.0–0 c6 11.Qf5 cb5 12.cb5 Rc8) 10.0–0 cb5 11.cb5 Rc8 12.Nbc3 Qb6.

7.Qc2 Nbd7 8.d3 A) 8...0–0 9.0–0 d5 (9...c6 10.a3 d5 11.Nd2 a5 12.Nf3 Qc7; 9...c5 10.bc5 dc5 11.Nbc3 Re8 12.Rad1 Bd6; 9...Re8 10.f4 c6 11.a3 a5 12.Rf3 ab4) 10.a3 a5 11.b5 c6 12.Nbc3 Rc8; B) 8...d5 9.a3 c5 (9...a5 10.b5 c6 11.Nbc3 dc4 12.dc4 cb5; 9...dc4 10.Qc4 c5 11.Qb5 Qc7 12.bc5 a6) 10.bc5 Nc5 11.d4 ed4 12.Bd4 Rc8.

7.Qc2 Nbd7 8.d4 A) 8...e4 9.0–0 (9.Nbc3 d5 10.Nd5 Nd5 11.cd5 Bb4 12.Bc3 Be7; 9.Nd2 d5 10.cd5 Nd5 11.Nc3 Nb4 12.Qe4 Nf6; 9.Nec3 d5 10.Nd5 Nd5 11.cd5 Bb4 12.Bc3 Be7) 9...c6 10.d5 cd5 11.cd5 Rc8 12.Qa4 Nd5; B) 8...a5 9.b5 c6 (9...0–0 10.0–0 c6 11.Qf5 e4 12.Nec3 Nb6; 9...ed4 10.Nd4 0–0 11.0–0 Re8 12.Nc3 Ne5; 9...a4 10.0–0 0–0 11.Rd1 Qe8 12.a3 Ra5) 10.Nbc3 Rc8 11.0–0 cb5 12.Nb5 0–0; C) 8...ed4 C1) 9.ed4 d5 (9...c6 10.0–0 d5 11.c5 0–0 12.Nbc3 b6) 10.c5 0–0 11.0–0 Re8 12.Nbc3 c6; C2) 9.Nd4 0–0 (9...a5 10.b5 0–0 11.0–0 Re8 12.Nf5 g6) 10.0–0 a5 11.b5 Re8 12.Nc3 Ne5; D) 8...d5 9.de5 Bb4 10.Kf1 Ng4 11.cd5 0–0 12.a3 Ba5.

7.d4 0–0 8.0–0 (8.de5 de5 9.0–0 Bb4 10.Be5 Nc6 11.Qd8 A) worse is 11...Nd8 A1) worse is 12.Bc7 Rc8 13.a3 Be7= (worse is 13...Rc7 14.ab4 Rc4 15.b5+=); A2) 12.Bf6 gf6 13.Nbc3+=; B) 11...Rfd8 12.Bf6 gf6+=) 8...a6 9.a3 b6 (9...Nbd7 10.Nbc3+=) 10.d5 c6 11.Nbc3 cd5 12.Nd5 Nd5 13.Qd5 Nd7 14.Ng3 Nf6 15.Qd3 Ng4 (15...Qc7!?+=) 16.Rad1+/– Qd7 (16...Nf6!?+/–) 17.h3+– Nf6 18.Nf5 (18.Be5!? Rfd8 19.Bd4 b5+–) 18...Rfd8+/– 19.Be5! de5 20.Qd7 Nd7 (20...Rd7 21.Rd7 Nd7 22.Ne7 Kf8 23.Nd5+/–) 21.Ne7+– Kf8 22.Nc6 Rdc8 23.Rd6 (worse is 23.Rd7 Rc6 24.f4 e4+/–) 23...f6 24.f4 (24.Rd7?! Rc6 25.Rfd1 Rc4+–) 24...ef4 25.ef4 b5 (25...Nb8 26.Nd8 Ra7 27.Rfd1 Rc4 28.Rb6+–) 26.Nd4 (26.Rd7?! Rc6 27.c5 Re6+–) 26...Ra7 27.cb5 ab5 28.Rd1 Nb8 (28...Rb7 29.Rd5+–) 29.Nb5 Ra8 (29...Re7 30.a4+–) 30.Rd8 Rd8 31.Rd8 Ke7 32.Rg8 Kf7 33.Rh8 h6 (33...g5 34.fg5 Kg7 35.Rc8 fg5 36.Nc7+–) 34.Nd4 1–0. Broszat,Thilo (2360) – Hartwich,Amadeus (1770), BdF Pyramide, 2006.

7.d4 ed4 8.Nd4 0–0 9.0–0 Re8 10.Nc3 c5 11.Nf5 Bf8 12.Nb5 Re6 13.bc5 Nc6 14.cd6 a6 15.Nc7 1–0. phildo (1820) – rockinghorse (1710), gameknot.com, 2013.

7.0–0 0–0

8.d3 a5 9.b5 A) 9...Re8 10.Nec3 (10.Ng3 c6 11.Qf3 a4 12.Nf5 Qd7 13.bc6; 10.Nd2 c6 11.bc6 Nc6 12.e4 Qc7 13.Rb1; 10.Qc2 Nbd7 11.f4 ef4 12.Nf4 Ng4 13.Nd5) 10...Nbd7 11.Qf3 Ra7 12.e4 Nc5 13.Nd2; B) 9...Nbd7 10.Nbc3 (10.e4 c6 11.Nbc3 d5 12.cd5 cd5 13.Nd5; 10.Nec3 Re8 11.Qf3 Qc8 12.Nd5 Nd5 13.cd5) 10...Nb6 11.e4 c6 12.f4 Ng4 13.Qd2; C) 9...c6 10.d4 (10.Ng3 cb5 11.cb5 Qd7 12.Nc3 d5 13.f4; 10.Nbc3 d5 11.cd5 Nd5 12.e4 Nb4 13.d4; 10.Nd2 Nbd7 11.bc6 bc6 12.Rb1 Rb8 13.f4) 10...Nbd7 11.Nd2 a4 12.bc6 bc6 13.a3.

8.d3 c6 9.a3 A) 9...Nbd7 10.f4 (10.Nbc3 a5 11.Qb3 Qb6 12.d4 Rfd8 13.b5; 10.Nd2 d5 11.cd5 cd5 12.Nf3 Bd6 13.Nh4; 10.Qc2 Re8 11.f4 a5 12.Rf3 ab4 13.ab4) 10...a5 11.Qc2 Qb6 12.Qd2 ab4 13.ab4; B) 9...a5 10.f4 (10.b5 cb5 11.cb5 Qb6 12.Nbc3 d5 13.Rc1) 10...Qb6 11.Qd2 e4 12.Ng3 ed3 13.Nf5; C) 9...Re8 10.Qc2 (10.Ng3 Nbd7 11.Nf5 a5 12.f4 Qb6 13.Qe1; 10.Nd2 Qb6 11.d4 Nbd7 12.Qc2 a5 13.Bc3; 10.f4 Qb6 11.Qd2 e4 12.Nbc3 ed3 13.Qd3) 10...Nbd7 11.f4 a5 12.Rf3 ab4 13.ab4; D) 9...Qb6 10.Ng3 (10.Nbc3 a5 11.b5 d5 12.Na4 Qc7 13.b6; 10.Nd2 Re8 11.Qb3 Nbd7 12.d4 a5 13.Rfb1; 10.Qc2 Nbd7 11.Nbc3 a5 12.Na4 Qc7 13.f4) 10...Re8 11.Nf5 a5 12.f4 Nbd7 13.c5.

8.d3 c6 9.Qc2 A) 9...Qb6 10.a3 a5 11.c5 dc5 12.bc5 Qc5 13.Qc5; B) 9...Re8 10.a3 (10.Bc3 Nbd7 11.f4 Qb6 12.Rf3 Bd8 13.a4) 10...a5 11.Nd2 Nbd7 12.d4 Qc7 13.e4; C) 9...a5 10.b5 (10.ba5 Qa5 11.Nd2 Nbd7 12.d4 Rfe8 13.Rfb1; 10.a3 ab4 11.ab4 Ra1 12.Ba1 Nbd7 13.Nd2) 10...cb5 11.cb5 Nbd7 12.Nbc3 Rc8 13.f4; D) 9...Nbd7 10.a3 (10.Nd2 d5 11.a3 a5 12.Nf3 Qc7 13.c5; 10.Nbc3 d5 11.cd5 cd5 12.Qb3 Rc8 13.Rac1; 10.Bc3 d5 11.Nd2 b5 12.cb5 cb5 13.Qb2) 10...d5 11.f4 dc4 12.dc4 ef4 13.Nf4.

8.d3 c6 9.Qd2 A) 9...Re8 10.a3 (10.Ng3 Nbd7 11.f4 ef4 12.Rf4 d5 13.Nf5; 10.Bc3 Nbd7 11.a4 d5 12.a5 Qc7 13.Na3; 10.a4 Nbd7 11.a5 d5 12.Rc1 Rb8 13.b5) 10...a5 11.Ng3 Nbd7 12.f4 ef4 13.Rf4; B) 9...Qc7 10.f4 (10.a3 a5 11.f4 e4 12.de4 Ne4 13.Qd3; 10.Ng3 d5 11.f4 ef4 12.Nf5 dc4 13.Rf4) 10...e4 11.de4 Ne4 12.Qd3 f5 13.Nd2; C) 9...Na6 10.a3 (10.Ng3 d5 11.b5 cb5 12.cb5 Nc7 13.Be5) 10...Re8 11.Ng3 Qc7 12.f4 Rad8 13.e4; D) 9...Nbd7 10.f4 (10.a3 d5 11.cd5 cd5 12.f4 e4 13.Nbc3) 10...e4 11.Nbc3 d5 12.cd5 cd5 13.de4.

8.d3 c6 9.Nd2 A) 9...Qb6 10.a3 (10.Bc3 Nbd7 11.a4 d5 12.a5 Qc7 13.c5; 10.Qa4 Nbd7 11.a3 d5 12.Ng3 Qc7 13.Nf5; 10.Qb3 Nbd7 11.d4 Rfe8 12.Rfd1 a5 13.a3) 10...Re8 11.d4 c5 12.Qb3 ed4 13.ed4; B) 9...a5 10.b5 (10.a3 Nbd7 11.Bc3 ab4 12.ab4 Qb6 13.Ng3) 10...Nbd7 11.d4 cb5 12.cb5 a4 13.Nc4; C) 9...Nbd7 10.a3 (10.Nf3 Qc7 11.a3 d5 12.cd5 Nd5 13.e4; 10.Ne4 a5 11.a3 Ne4 12.de4 ab4 13.ab4; 10.d4 a5 11.ba5 Qa5 12.e4 Rfe8 13.Re1) 10...d5 11.cd5 cd5 12.f4 Ng4 13.Rf3.

8.d3 Qd7 A) 9.e4 A1) 9...c5 10.b5 (10.a3 b5 11.Nbc3 bc4 12.dc4 Qb7 13.Nd5; 10.bc5 dc5 11.Be5 Nc6 12.Bf4 Rfd8 13.Nbc3; 10.Bc3 cb4 11.Bb4 Nc6 12.Bd2 Rfe8 13.Nbc3) 10...Re8 11.f4 a6 12.a4 Ng4 13.Qd2; A2) 9...a5 10.b5 (10.a3 ab4 11.ab4 Ra1 12.Ba1 Na6 13.b5) 10...c6 11.a4 Qg4 12.f4 Nbd7 13.Nbc3; A3) 9...Qc6 10.Nbc3 (10.Qc2 Nbd7 11.Nbc3 a6 12.Ng3 Rfe8 13.Nf5; 10.b5 Qb6 11.Nd2 Nbd7 12.a4 a5 13.Qc2; 10.Ng3 Re8 11.Nf5 Qb6 12.Qd2 Nfd7 13.a3) 10...a6 11.a3 Re8 12.Nd5 Nbd7 13.Bd4; B) 9.Nbc3 d5 10.cd5 (10.Nd5 Nd5 11.cd5 Qd5 12.Nc3 Qd7 13.a3) 10...Nd5 11.Nd5 Qd5 12.Nc3 Qd7 13.a3; C) 9.f4 a5 10.b5 e4 11.Nbc3 d5 12.cd5 Nd5 13.de4.

8.d3 Nbd7 9.a3 A) 9...a5 10.Nbc3 (10.Qb3 c6 11.Nbc3 Qb6 12.d4 ab4 13.ab4) 10...Re8 11.f4 c6 12.b5 cb5 13.Nb5; B) 9...c6 10.f4 (10.Nbc3 a5 11.Qb3 Qb6 12.d4 Rfe8 13.Rfd1; 10.Nd2 d5 11.cd5 cd5 12.Nf3 Bd6 13.Nh4; 10.Qc2 d5 11.f4 dc4 12.dc4 ef4 13.Nf4) 10...a5 11.Qc2 Qb6 12.Qd2 e4 13.Bd4; C) 9...Re8 10.Nbc3 a5 11.f4 c6 12.b5 cb5 13.Nb5; D) 9...d5 10.cd5 Nd5 11.e4 N5b6 12.f4 ef4 13.Nf4.

8.d3 Nbd7 9.Nbc3 A) 9...d5 10.Nd5 Nd5 11.cd5 Bb4 12.Qb3 Bd6 13.Rab1; B) 9...Re8 10.a3 (10.Qb3 a5 11.a3 c6 12.d4 Qb6 13.Rfd1; 10.f4 d5 11.Nd5 Nd5 12.cd5 Bb4 13.fe5) 10...a5 11.f4 c6 12.b5 d5 13.fe5; C) 9...c6 10.d4 (10.Qb3 a5 11.a3 Qb6 12.d4 Rfe8 13.Rfd1; 10.Rc1 Re8 11.a3 a5 12.b5 d5 13.cd5; 10.a3 a5 11.Qb3 Qb6 12.d4 Rfd8 13.b5) 10...c5 11.bc5 dc5 12.d5 Ne8 13.Qb3.

8.d3 Nbd7 9.Nd2 c6 (9...d5 10.Qb3 (10.a3 a5 11.b5 c6 12.f4 cb5 13.fe5; 10.Bc3 Re8 11.Qc2 dc4 12.Nc4 Nd5 13.b5; 10.c5 a5 11.a3 Re8 12.Nf3 e4 13.de4) 10...a5 11.a3 c6 12.f4 e4 13.de4) 10.a3 (10.Nf3 a5 11.a3 Re8 12.Qc2 b5 13.cb5; 10.Qc2 d5 11.a3 a5 12.Nf3 Qc7 13.c5; 10.Qb3 a5 11.a3 d5 12.f4 e4 13.de4) 10...Qc7 (10...d5 11.cd5 cd5 12.Nf3= (12.f4 Ng4 13.Rf3) 12...Bd6 13.Nh4) 11.Nc3 (11.f4 a5 12.Qb3 Rfe8 13.e4) 11...a6 (11...a5 12.b5= d5 13.cd5) 12.Nf3 (12.f4 ef4 (12...d5 13.cd5) 13.Rf4 a5=) 12...h6 (12...d5 13.c5= (13.cd5 cd5 14.Nh4=); 12...Rfe8 13.e4) 13.Rc1 (13.Nh4+=) 13...Rfe8 14.d4 e4 (14...ed4!? 15.Nd4 a5=) 15.Nd2+/– Bd8 16.Qc2 e4 draws heavy fire 16...Rc8 (better is 16...d5!?+=) 17.Nde4 Ne4 18.Ne4 Nf6 19.Nc3 d5 (19...Qd7 20.Rfd1+/–) 20.cd5+– cd5 (20...Ng4 21.g3 Bg5+–) 21.Qf5 Qd6?? (21...Qb8 22.Nd5 Rc1 23.Nf6 Bf6 24.Rc1 Qd6+–) 22.Qc8 Bc7 23.Qh3 Bb8 24.Rc2 Kh7 (24...Ng4 25.Nd5 Nh2 26.Rfc1 Qd5 27.Rc8+–) 25.Rfc1 Ne4 (25...Qe6 26.Qe6 Re6 27.h4+–) 26.Ne4 Re4 (26...de4 27.Qf5 Qg6 28.Qd7+–) 27.Qf5 (27.Qf5 Qg6 28.Qd5+–) 1–0. Bonetti,Shane – guest643, ICC, 2002.

8.d3 Nbd7 9.f4 A) 9...d5 10.fe5 (10.c5 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1; 10.a3 dc4 11.dc4 e4 12.Nd2 c5 13.Ng3) 10...Ng4 11.Qb3 Bg5 12.e4 Be3 13.Kh1; B) 9...e4 10.Nbc3 (10.a3 Nb6 11.Ng3 a5 12.Nc3 ed3 13.Qd3; 10.de4 Ne4 11.Nec3 Bf6 12.Qd5 Qe7 13.Qd3) 10...Nb6 11.Ng3 ed3 12.Qd3 a5 13.b5; C) 9...a5 10.ba5 (10.a3 d5 11.fe5 Ng4 12.Qb3 ab4 13.ab4; 10.b5 e4 11.Nbc3 ed3 12.Qd3 Nc5 13.Qf5) 10...e4= 11.de4 Ne4 12.Nbc3 Nec5 13.Nd5.

8.d4 Nbd7=.

8.f4 e4 9.d3 d5=.

8.f4 e4 9.Ng3 d5 10.Qb3 c6 11.Nf5 Re8 12.Ne7 Qe7 (worse is 12...Re7 13.Bf6 gf6 14.cd5 Qd5 15.Qd5 cd5 16.Nc3+=) 13.Nc3 dc4 14.Qc4 Na6 15.a3 Rad8 16.Rad1 Rd7 17.Ne2 Nc7 18.Bd4 Ncd5 19.Qc2 a6 20.Ng3 Qd8 21.Nf5 g6 (21...a5 22.Qc5 ab4 23.ab4=) 22.Ng3 h5 23.Be5 h4 24.Ne4 (24.Ne2!?=) 24...Ne4+= 25.Qe4 f6 26.Qg6 Rg7 27.Bf6 Rg6 28.Bd8 Rd8 29.f5 Rg4 30.Rf3? (better is 30.h3 Re4 31.Kf2+=) 30...Nc3!–+ 31.Re1 (31.dc3 Rd1 Pinning (31...Rd1 Deflection; 31...Rd1 Clearance)) 31...Rd2 32.Rf2 Rf2 (32...Rd3!? 33.Kf1–+) 33.Kf2–/+ Re4 (33...Rc4!?–/+) 34.Kf3+= Re7 35.e4 Nb5 36.Re3 Rd7 37.f6 (37.g3 Rd2 38.Kg4 Ra2 39.Kh4 Ra3 40.Ra3 Na3–/+) 37...Kf7 38.e5 Ke6 39.g4 (39.a4!? Nd4 40.Kg4+=) 39...hg3–/+ 40.hg3 Nd4 41.Ke4 (41.Kf4!?–/+) 41...Nf5–+ 42.Rc3? (42.Re1 Rd4 43.Kf3 Nh6–+) 42...Rd4 43.Kf3 Nh6 44.Re3 Nf7 45.Re4 0–1. Schmidbauer,Josef (1605) – Koenig,Karl (1865), Niederbayernliga, 2003.

8.f4 e4 9.Ng3 d5 10.c5 Re8 (10...a5 11.a3+=) 11.Nf5 (11.d3 a5 12.a3 Nc6 13.de4 ab4 14.ab4 Ra1 15.Ba1 Nb4 16.Bf6 Bf6=) 11...Bf8 (11...a5 12.a3+=) 12.g4 (12.Qe1!?=) 12...a5 13.g5 Nfd7 14.Qg4? (14.a3 ab4 15.ab4 Ra1 16.Ba1 Na6=) 14...Re6 (better is 14...g6 15.Nd4 ab4–+) 15.a3= ab4 16.ab4 Ra1 17.Ba1 Nc6 (17...b6 18.Bd4+=) 18.b5 (18.Bc3!?=) 18...Nb4 (18...Na7 19.Nd4 Rg6 20.Qf5–/+) 19.Bc3+= Na2 (19...Nd3 20.Nd4 N7c5 21.Ne6 Ne6 22.Qf5+=) 20.Bd4 (20.c6 Nc3 21.Nc3 Nb6=) 20...Nb4 (20...c6 21.Na3+=) 21.Nc3 (21.Bc3 Nd3 22.c6 bc6 23.Nd4+=) 21...Nc5 (21...Nd3 22.Na4+=) 22.Ng7+= Bg7 23.Bc5 Nd3 24.f5 Re8 25.f6 Nc5 26.fg7 Nd3 (26...Re5 27.Rf6+=) 27.Qf5 (27.Rf5 Re5 (27...Kg7 28.Nd5 Ne1 29.Nf6 Nf3 30.Kh1 Qd2 31.Ne8 Kf8 32.Rf3 Qd1 33.Kg2 ef3 34.Qf3 Qf3 35.Kf3 Ke8 36.Ke4=) 28.Re5 Ne5+=) 27...Ne5 (27...Kg7 28.Nd5 Re5 29.Qf7 Kh8 30.Rf5+–) 28.Kh1 c6 (28...Kg7 29.Rf2+=) 29.bc6 (better is 29.Qf6!?=) 29...bc6+= 30.h4 (30.Qf6 Qd7+=) 30...Nf3 (30...Kg7 31.Rf2–/+) 31.d3 Qc7 (worse is 31...Kg7 32.de4 Ne5 33.ed5+=) 32.Qh3 Kg7 (32...Qe5 33.de4 Nd2 34.Rc1–/+) 33.de4+= de4 (33...Nd2 34.ed5 Nf1 35.Qf1–/+) 34.Ne4 Re4 35.Rf3 (35.Qf3?? Rh4 36.Qh3 Rh3 37.Kg2 Qg3) 35...Qe5 36.Rg3 (36.Kg1 Qa1 37.Kg2 Qa2 38.Kg1 Qc4=) 36...Qd5 37.Kh2 Qc4 38.Qf5 (38.Kg1 Rh4 39.Qg2 Qc1 40.Kf2 Qc2 41.Kf1 Qb1 42.Kf2 Rb4–+) 38...Rh4 39.Kg2?? (better is 39.Rh3 Rh3 40.Qh3–/+) 0–1. Popovic,Danijela (2055) – Sakotic,Jasna (2170), YUG–chT (Women), 1994.

8.f4 e4 9.Ng3 d5 10.cd5 Qd5 11.Bf6 Bf6= (11...gf6?? 12.Qg4 Kh8 13.Nf5 Qf5 14.Qf5+–).

5.Be2 h5

6.a3 Nc6 A) 7.d4 ed4 (7...e4 8.Nc3 Qd7 9.Qc2 Bf5 10.Nh3 h4) 8.ed4 d5 9.c5 Qe7 10.h3 Bf5; B) 7.Bg4 hg4 8.b5 Ne7 9.d4 Ng6 10.Ne2 Qe7; C) 7.Nc3 Qd7 (7...Be7 8.d4 ed4 9.ed4 Qd7 10.Nf3 d5) 8.d4 ed4 9.Nd5 Be7 10.Bd4 Nd5; D) 7.b5 Ne7 (7...Nb8 8.Nf3 e4 9.Ng5 Be2 10.Qe2 d5) 8.d4 Ng6 9.Nd2 e4 10.Bg4 hg4.

6.a3 Nbd7 A) 7.Nc3 Nb6 (7...Be7 8.d4 ed4 9.Qd4 Ne5 10.Nd5 a5; 7...a5 8.b5 Be7 9.d4 ed4 10.Qd4 Nc5; 7...Qe7 8.d3 0–0–0 9.Nd5 Nd5 10.cd5 Nf6) 8.d3 Qe7 9.Nf3 0–0–0 10.0–0 Qe8; B) 7.h3 Be6 (7...Be2 8.Ne2 a5 9.d4 ab4 10.ab4 Ra1; 7...Bf5 8.Nf3 a5 9.0–0 ab4 10.ab4 Ra1) 8.Nf3 Nb6 9.d3 Qd7 10.0–0 0–0–0; C) 7.Bg4 hg4 8.d4 Qe7 9.Nd2 ed4 10.Bd4 Ne5; D) 7.d4 Be7 (7...e4 8.Nd2 c6 9.d5 Be7 10.f3 ef3; 7...a5 8.Nd2 Be7 9.f3 Be6 10.d5 Bf5; 7...Qe7 8.Qa4 c6 9.f3 Be6 10.Nd2 h4) 8.f3 Be6 9.d5 Bf5 10.e4 Bg6.

6.a3 Qe7 A) 7.Nc3 Nbd7 (7...a5 8.b5 Nbd7 9.d3 Nc5 10.Nf3 Nd3) 8.d3 0–0–0 9.Nd5 Qe8 10.Nf3 Nd5; B) 7.Bg4 hg4 8.Nc3 Nbd7 9.e4 0–0–0 10.Nd5 Nd5; C) 7.d4 ed4 (7...Nbd7 8.f3 Be6 9.d5 Bf5 10.e4 Bg6) 8.Bd4 Nc6 9.Bg4 hg4 10.Nc3 Qe6.

6.a3 Be7 A) 7.d4 ed4 (7...e4 8.Nc3 a5 9.Bg4 hg4 10.Qb1 d5; 7...Nbd7 8.h3 Bf5 9.Nf3 e4 10.Nfd2 a5; 7...a5 8.de5 de5 9.Qd8 Kd8 10.b5 Nbd7) 8.Bd4 Nc6 9.Bg4 hg4 10.Nc3 Nd4; B) 7.Nc3 Nbd7 (7...a5 8.b5 Nbd7 9.d3 Nb6 10.Nf3 0–0; 7...Nc6 8.d4 ed4 9.ed4 Qd7 10.Nf3 d5) 8.d4 ed4 9.Qd4 Ne5 10.Nd5 a5; C) 7.Bg4 hg4 (7...Ng4 8.d4 ed4 9.Bd4 Ne5 10.Qc2 Bf6) 8.d4 ed4 9.Bd4 Nc6 10.Nc3 a5; D) 7.Nf3 e4 8.Nd4 a5 9.f3 ef3 10.gf3 Bd7.

6.Nc3 Nc6 7.b5 Ne7 (7...Na5 8.Qa4 c6 9.Nf3= e4 10.Ng5 Bf5) 8.d4 (8.Nf3 a6 9.ba6 Ra6 10.d4 Ng6) 8...ed4 9.Qd4 (9.ed4 d5= (9...Qd7 10.Nf3 0–0–0) 10.c5 a6) 9...Nf5 10.Qd2 Be2 (10...Nh4 11.f3 Be6 12.Bd3=) 11.Nge2+= a6 (11...Qd7 12.0–0+=) 12.0–0 ab5 13.Nb5 (13.e4 Ne7 14.cb5 Qd7+/–) 13...c6 (13...Be7 14.e4 Nh6 15.Qf4+=) 14.Bf6+/– gf6 15.Nbd4 Nd4 16.ed4 Qa5 17.Qe3 Be7 (17...Kd8 18.Rfb1 Ra7 19.d5+–) 18.Rfe1 (better is 18.Rfb1 Ra7 19.d5+–) 18...Qg5? (better is 18...Kd8+/–) 19.f4+– Qg4 20.Ng3 Qd7 (20...Qe6 21.Nf5 (21.Qe6?! fe6 22.Re6 Kd7+–) 21...Kf8 22.Ne7 Qc4 23.Nf5+–) 21.Nf5 0–0–0 22.Ne7 (22.Qe7?! Qf5 23.Rab1 Rd7+/–) 22...Kc7 23.Rab1 Rhe8 24.d5 c5 25.Qb3 Rb8 (25...b5+–) 26.Qb6 1–0. orane (1805) – GamePlayer (1655), internet, 2004.

6.Nc3 Nbd7 A) 7.a3 Nb6 (7...a5 8.b5 Be7 9.Nf3 e4 10.Nd4 Be2; 7...Qe7 8.d3 0–0–0 9.Nd5 Nd5 10.Bg4 hg4; 7...Be7 8.d4 ed4 9.ed4 a5 10.Bg4 hg4) 8.d3 Qd7 9.Nf3 0–0–0 10.0–0 Be7; B) 7.Bg4 hg4 8.a3 a5 9.d4 ab4 10.ab4 Ra1; C) 7.d3 d5 (7...a5 8.b5 Nb6 9.Nf3 Be7 10.0–0 a4; 7...Be7 8.Nf3 d5 9.cd5 Bb4 10.Qb3 Bd6) 8.a3 a5 9.b5 dc4 10.dc4 Nc5; D) 7.Nf3 e4 (7...d5 8.Nd5 Nd5 9.cd5 e4 10.Nd4 Be2; 7...a5 8.ba5 e4 9.Ng5 Be2 10.Qe2 Nc5; 7...Nb6 8.d3 Qe7 9.h3 Be6 10.Ng5 0–0–0) 8.Ng5 Ne5 9.f3 ef3 10.Nf3 Nfd7.

6.Nc3 Be2 A) 7.Qe2 Nbd7 (7...a5 8.b5 Be7 9.Nf3 h4 10.d4 h3; 7...h4 8.Nh3 c6 9.e4 a5 10.b5 Nbd7; 7...Be7 8.Nf3 h4 9.0–0 h3 10.g3 0–0) 8.Nf3 Be7 9.e4 c6 10.0–0 c5; B) 7.Nge2 d5 8.cd5 Nd5 9.a3 a5 10.Qa4 c6.

6.Nc3 Be7 A) 7.d4 ed4 (7...Nbd7 8.f3 ed4 9.Nb5 d3 10.Bd3 Be6; 7...a5 8.b5 ed4 9.ed4 d5 10.Nf3 dc4; 7...e4 8.Bg4 hg4 9.Qc2 d5 10.cd5 Bd6) 8.ed4 d5 9.c5 0–0 10.Bg4 hg4; B) 7.Bg4 hg4 8.a3 Qd7 9.d3 c6 10.Nge2 Qe6; C) 7.a3 a5 (7...Nc6 8.d4 ed4 9.ed4 Qd7 10.Nf3 d5; 7...Nbd7 8.d4 ed4 9.ed4 Nb6 10.Nf3 Qd7; 7...c6 8.Nf3 a5 9.0–0 ab4 10.ab4 Ra1) 8.b5 Nbd7 9.d3 Nb6 10.Nf3 0–0; D) 7.Nf3= Qd7 8.h3 Bf5 9.d4 e4 10.Ng5 Rh6.

6.d4 ed4 7.Bd4 (7.Bg4 hg4 8.Bd4 d5 9.c5 Nbd7 10.Ne2 a5) 7...Nc6 (7...d5 8.c5 Nc6 9.Bc3 a5 10.b5 Na7; 7...Be7 8.b5 Bf5 9.Nf3 h4 10.h3 Be6) 8.Bc3 Ne4 9.Bf3 d5 10.a3 dc4.

6.Nf3 A) 6...Na6 7.b5 (7.a3 e4 8.Ng5 Qe7 9.f3 ef3 10.Bf3 d5) 7...Nb8 8.0–0 a6 9.h3 Bd7 10.Nc3 ab5; B) 6...e4 B1) 7.Ng5 d5 (7...Nc6 8.Nc3 Be2 9.Ke2 Qd7 10.Kf1 Qf5; 7...Be2 8.Qe2 d5 9.a3 c5 10.b5 Nfd7) 8.f3 ef3 9.gf3 Bf5 10.Qa4 Qd7; B2) 7.Nd4 Be2 (7...c5 8.Bg4 hg4 9.Nc2 Be7 10.d3 d5) 8.Qe2 c5 9.bc5 dc5 10.Nb3 Bd6.

6.Bg4 hg4 A) 7.Nc3 Qd7 (7...Nbd7 8.a3 a5 9.d4 ab4 10.ab4 Ra1; 7...Be7 8.a3 Rh4 9.Nge2 Nbd7 10.d4 Nb6; 7...Nc6 8.Nd5 Qd7 9.b5 Ne7 10.Nf6 gf6) 8.Nd5 Nd5 9.cd5 a5 10.ba5 Qb5; B) 7.a3 Qd7 (7...d5 8.Be5 dc4 9.Bf6 Qf6 10.Nc3 Nc6; 7...Nc6 8.b5 Ne7 9.d4 e4 10.d5 g3; 7...a5 8.b5 c6 9.d4 cb5 10.cb5 Nbd7) 8.Nc3 Qc6 9.Qa4 Qa4 10.Na4 Nbd7.

5.Ne2 Nbd7

6.Qa4 A) 6...Be6 7.Ng3 (7.d3 Be7 8.Nbc3 c6 9.Rc1 0–0 10.b5; 7.Nec3 c6 8.Be2 a5 9.ba5 d5 10.cd5; 7.Na3 Be7 8.d4 0–0 9.d5 Bf5 10.Ng3) 7...Be7 8.d4 ed4 9.Bd4 0–0 10.Nd2; B) 6...a5 7.ba5 (7.d4 ed4 8.Bd4 ab4 9.Qb4 c5 10.Bf6) 7...c6 8.d4 ed4 9.Nd4 Nc5 10.Qc2; C) 6...c6 7.d4 Be7 8.Nd2 0–0 9.Rd1 Re8 10.h3; D) 6...Be7 7.d4 0–0 8.a3 a5 9.Qb3 ed4 10.f3.

6.Qb3 A) 6...a5 7.d4 (7.h3 Be6 8.ba5 d5 9.d4 dc4 10.Qc2; 7.f3 Be6 8.ba5 d5 9.cd5 Nd5 10.d4) 7...ab4 8.Qb4 Ra7 9.Qb5 c6 10.Qb3; B) 6...Be7 7.d4 (7.Nbc3 a5 8.ba5 Nc5 9.Qc2 Bh5 10.f4; 7.a3 0–0 8.d4 a5 9.ba5 ed4 10.ed4; 7.Ng3 a5 8.d4 ed4 9.ed4 d5 10.ba5) 7...0–0 8.f3 Be6 9.d5 Bf5 10.Ng3.

6.Nbc3 A) 6...Be7 7.d4 (7.Qb3 a5 8.ba5 Nc5 9.Qc2 Bh5 10.f4) 7...ed4 8.Qd4 a5 9.b5 Nc5 10.Rd1; B) 6...d5 7.Nd5 Nd5 8.cd5 Bb4 9.Qa4 c5 10.a3; C) 6...a5 7.a3 (7.b5 Be7 8.d4 0–0 9.f3 Be6 10.d5; 7.ba5 Ra5 8.d4 ed4 9.ed4 Nb6 10.Qb3) 7...ab4 8.ab4 Ra1 9.Ba1 Be6 10.Ng3; D) 6...Be6 7.Ng3 (7.d3 Be7 8.f4 d5 9.cd5 Nd5 10.Nd5; 7.Qb3 Nb6 8.Ng3 a5 9.ba5 Ra5 10.Qb4) 7...d5 8.cd5 Nd5 9.a3 a5 10.Nd5.

6.d4 A) 6...d5 7.a3 ed4 8.f3 d3 9.Nf4 Qe7 10.Bd4; B) 6...Nb6 7.Nd2 (7.Qc2 Be7 8.a3 a5 9.b5 Be6 10.Nd2; 7.Qb3 e4 8.Nf4 c6 9.c5 g5 10.cb6) 7...Be7 8.Qb3 ed4 9.Nd4 c5 10.N4f3; C) 6...e4 7.h3 Bh5 8.g4 Bg6 9.Nf4 d5 10.a3; D) 6...Be7 7.f3 Be6 8.d5 Bf5 9.e4 Bg6 10.Nbc3.

5.Ne2 Be6

6.Na3 A) 6...Nbd7 7.d4 a5 8.ba5 c6 9.a6 Qa5 10.Nc3; B) 6...Be7 7.d4 (7.Qa4 Nbd7 8.d4 0–0 9.d5 Bg4 10.f3; 7.Qb3 0–0 8.d4 Nbd7 9.Rd1 a5 10.ba5) 7...0–0 8.d5 Bg4 9.f3 Bd7 10.Nc2; C) 6...a5 7.ba5 (7.Qa4 Nc6 8.b5 Nb4 9.Ng3 h5 10.h4; 7.b5 Be7 8.d4 0–0 9.Ng3 ed4 10.Bd4) 7...Ra5 8.d4 d5 9.c5 ed4 10.ed4.

6.Qa4 A) 6...c6 7.Ng3 (7.Na3 Nbd7 8.d4 Be7 9.Rd1 Qb6 10.Ng3; 7.b5 Nbd7 8.bc6 bc6 9.d4 Rb8 10.Bc3; 7.Qb3 b5 8.Ng3 a5 9.ba5 Nbd7 10.Qc2) 7...h5 8.Nc3 Nbd7 9.d3 h4 10.Nge4; B) 6...Nbd7 7.Ng3 (7.d3 Be7 8.Nbc3 c6 9.Rc1 0–0 10.a3; 7.Nec3 c6 8.Be2 a5 9.ba5 d5 10.cd5; 7.Na3 Be7 8.d4 0–0 9.d5 Nb6 10.Qa5) 7...Be7 8.Be2 0–0 9.0–0 d5 10.d3.

6.Qb3 A) 6...Be7 7.d4 d5 8.c5 e4 9.Nf4 Bg4 10.Nc3; B) 6...d5 7.c5 (7.Qa4 Nc6 8.c5 Nd7 9.d4 a5 10.b5; 7.Be5 dc4 8.Qa4 Qd7 9.b5 Ng4 10.Bg3) 7...Nc6 8.d4 Nd7 9.Nd2 Be7 10.b5; C) 6...b5 7.Ng3 (7.Na3 c6 8.Qc3 a5 9.ba5 Ne4 10.Qc2) 7...Nbd7 8.d4 bc4 9.Bc4 d5 10.Be2; D) 6...Nbd7 7.d4 (7.Ng3 Be7 8.f4 ef4 9.ef4 d5 10.c5) 7...b5 8.Na3 Rb8 9.Bc3 a5 10.Nb5.

6.d3 A) 6...Nbd7 7.Nbc3 (7.a3 a5 8.Nbc3 Be7 9.f4 0–0 10.Qd2; 7.Qa4 c6 8.Nbc3 Be7 9.Rc1 0–0 10.b5; 7.f4 d5 8.c5 a5 9.a3 Ng4 10.Qd2) 7...Be7 8.f4 d5 9.cd5 Nd5 10.Nd5; B) 6...Nc6 7.a3 (7.b5 Ne7 8.Nd2 Ng6 9.g3 d5 10.Bg2; 7.Qa4 Nd7 8.a3 Be7 9.b5 Ncb8 10.Nbc3; 7.Bc3 a6 8.Nd2 d5 9.b5 ab5 10.cb5) 7...a6 8.Nbc3 Be7 9.Ng3 Ra7 10.Be2; C) 6...d5 7.c5 (7.a3 dc4 8.Be5 Nc6 9.Bc3 Bd6 10.dc4; 7.Be5 Bb4 8.Bc3 Bc3 9.Nbc3 dc4 10.Nd4) 7...a5 8.Be5 ab4 9.d4 Nfd7 10.Bg3; D) 6...Be7 7.Nbc3 (7.f4 Nbd7 8.Ng3 ef4 9.ef4 Bg4 10.Be2; 7.Nd2 Nbd7 8.d4 a5 9.d5 Bg4 10.f3; 7.a3 0–0 8.f4 Nbd7 9.e4 ef4 10.Nf4) 7...Nbd7 8.f4 d5 9.cd5 Nd5 10.Nd5.

4.e3 g6

5.Qb3 Bg7 6.Nc3 a5 7.a3 0–0 8.Be2 Re8 9.Nf3 e4 10.Nd4 ab4 11.ab4 (11.Qb4? c5 12.Qb3 cd4 13.ed4 Nc6–+) 11...Ra1 12.Ba1 Nc6 13.Ncb5 Nd4 14.Bd4 Ng4 15.Bg4 Bg4 16.Qc3 f6 17.h3 Bd7 18.0–0 b6 19.Qa1 c5 20.bc5 dc5 21.Bc3 Be6 22.Na3 Qd3 23.Qb2 Ra8 24.Qb6 Bc4 25.Nc4 Qc4 26.Rb1 Rf8 27.Qc7 Rf7 28.Rb8 Bf8 29.Qc6 Kg7 30.Re8 Qe2 31.Re4 g5 32.Rg4 Qe1 33.Kh2 Qf2 34.Rg5 Kh6 35.Rg4 Be7 (35...Rg7 36.Bf6 Rg6 37.Bg5 Kg7 38.Qd7 Qf7 39.Bh6 Kg8 40.Qf7 Kf7 41.Rf4 Rf6 42.Rf6 Kf6 43.Bf8+–) 36.Rf4 (better is 36.Be5! Rg7 37.Bf4 Qf4 38.Rf4 c4+–) 36...Qe2 37.Bf6 Bf6 38.Rf6 Rf6 39.Qf6 (39.Qf6 Kh5 40.Qf3 Qf3 41.gf3+–) 1–0. Vasut,Karel (2165) – Sevcik,Vladimir (2245), CZE–chT2d, 2006.

5.b5 c5 6.bc6 Nc6 7.d3 Bg7 8.Nf3 Bg4 9.Be2 0–0 10.0–0 e4 11.de4 Ne4 12.Bg7 Kg7 13.Nd4 Be2 14.Qe2 Qf6 15.Nd2 Nd4 16.ed4 Nd2 17.Qd2 Rfe8 18.d5 Re4 19.Rac1 Rae8 20.Rfe1 R8e5 21.Re4= Re4 22.g3 Qf3 23.Qb4 Re2 24.Rf1 Qf6 25.Qb7 Ra2 26.Qb3 Ra1 27.Ra1 Qa1 28.Kg2 Qd4 29.Qa2 Qc5 30.Qb2 f6 31.Qc3 a5 32.Qb3 f5 33.Qc3 Kf7 34.Qh8 Qc4 35.Qh7 Kf6 36.Qh8 Kf7 37.Qh7 Kf6 38.Qh8 ˝–˝. valpa – schachsky, playchess.de, 2003.

5.Qc2 Bg7+= 6.Nc3 0–0 7.Nf3 Nh5 (7...Re8 8.e4=) 8.Be2= f5 (8...Bf5 9.d3=) 9.d4 (9.0–0 a5 10.b5 e4+=) 9...e4 (9...ed4 10.Nd4 f4 11.0–0+=) 10.Nd2+= Nf6 11.h3 (11.0–0 Qe7+=) 11...Nc6 (11...a5 12.b5+=) 12.b5 Ne7 13.a4 Be6 14.d5 Bf7 15.g4 Nd7 (15...Re8 16.Rb1+=) 16.gf5 gf5 17.h4 (17.Rg1 Ne5+=) 17...Ne5 18.h5 c6 19.Rg1 Kh8 (19...cd5? 20.h6 dc4 21.hg7+–) 20.dc6 bc6 21.Rd1 Ng8 (21...Rc8 22.Rg2=) 22.Nde4 (22.c5!? Nd3 23.Bd3 ed3 24.Nce4+– (24.Qd3?! Bh5 25.Rg7 Kg7+/–)) 22...fe4= 23.Ne4 Qe7 (better is 23...Qh4 24.Rd6 Rae8=) 24.Ng5 Nf6 25.f4 (25.Nf7 Rf7 (worse is 25...Qf7 26.f4 Ned7 27.bc6+=) 26.Rg2 Rc8–/+) 25...Nf3 26.Nf3 Bh5 27.Qd3 Rae8 28.Bc1 (28.bc6 Qe3 29.Qe3 Re3+/–) 28...Ne4+/– 29.Ng5 (29.Rh1 Bc3 30.Bd2 Bd2 31.Rd2 Bf3 32.Bf3 Nd2 33.Kd2 c5+=) 29...Be2 30.Qe2?? (better is 30.Ke2 Ng5 31.fg5+/–) 30...Bc3–/+ 31.Rd2 Nd2 32.Bd2 Qe3 33.Qe3 Re3 34.Kd1 Bd2 35.Kd2 Re7 36.Rf1 (36.bc6 h6 (36...Rf4?! 37.Rb1+=) 37.Nh3 Rc8) 36...cb5 37.ab5 h6 38.Nh3 (38.Rh1 Kg7 39.Nh3 d5 40.cd5 Rd7 41.Rg1 Kh7–+) 38...Rc7 39.Ra1 Rg8 40.Nf2 (40.Ke2 Rc4 41.Ra3 Rg7–+) 40...Rg2 41.Ke3 Rc4 42.Ra7 Rb4?? (better is 42...Rg3!? 43.Kd2 Rf4 44.Nd3–+) 43.Kf3? (better is 43.Ne4 Rb3 44.Kd4+=) 43...Rg7–+ (43...Rb5? 44.Kg2 Rb4 45.Kf3+–) 44.Ra8 Rg8 45.Ra6 Rb3 46.Ke4 (46.Ke2–+) 46...Rg2 47.Nd3 (47.Ra2–+) 47...Re2 48.Kf5 Rd3 49.Ra8 (49.Ra7 h5 50.Kg6 Rg3 51.Kf6 Rb2–+) 49...Kg7 50.Ra7 Kf8 51.b6 (51.Kf6 Rb3–+) 51...Rb3 52.b7 0–1. Mroz,Antoni – Zieba,Zdzislaw, corr Poland, 1988.

5.Nc3 c6 6.Nf3 (6.d4 Nbd7=) 6...Bg7 7.Be2 (7.d4 e4 8.Nd2 Bg4+=) 7...0–0 8.0–0 Nbd7 (8...e4 9.Nd4=) 9.Qb3 (9.d4 c5+=) 9...Kh8 (9...Re8 10.e4=) 10.d4+= Ne8 (10...Re8 11.Rfd1+=) 11.d5 (11.Rfd1 Qe7+=) 11...c5 (11...f5 12.Rfd1+=) 12.b5 (12.a3 a5+=) 12...f5 13.a4 g5 (13...Qa5 14.Qc2+=) 14.Nd2 Rf6 (14...Qf6 15.a5+=) 15.f4 (15.a5 Rf7+/–) 15...Rh6 (15...gf4 16.ef4 e4 17.a5+=) 16.g3 (16.fe5 Ne5 17.a5 g4+=) 16...gf4+= 17.ef4 e4 18.Nd1 (18.a5 Bd4 19.Kh1 Qf6+=) 18...Bd4= 19.Ne3 (19.Kh1 a6=) 19...Qf6 20.Rab1 Kg8 (20...a6 21.Rfe1=) 21.Rf2 (21.a5 Qg6+=) 21...Qg6 (21...b6 22.Rg2=) 22.Rg2 (22.a5 Nc7+=) 22...Nef6 23.Ndf1 (23.Re1 b6=) 23...Kf7 (23...Ng4 24.a5=) 24.Rd1 Bb2 25.Qb2 Nf8 26.a5 Bd7 27.a6 b6 28.Ra1 (28.Re1 Rc8+/–) 28...Nh5 (28...Re8 29.Re1+=) 29.Ra3 (29.Re1 Kg8+=) 29...Qf6 (29...Re8 30.Nd2+=) 30.Qf6 (30.Bh5 Rh5 31.Qf6 Kf6+/–) 30...Nf6+= 31.Nd1 (31.Nd2 Re8+=) 31...Rg6 (31...Re8 32.Re3+=) 32.Re3 Rg7 33.Nc3 Ng6 34.Rf2 Rag8 35.Nd2 Ne7 (35...h5 36.Kf1=) 36.Kh1 (36.Kf1 h5=) 36...h5 37.Rf1 (37.Kg2 h4=) 37...Ng4 38.Bg4 hg4 39.Ra1 (39.Rfe1 Rh7=) 39...Rh7 40.Re2 Rgh8 41.Nd1 (41.Rae1 Kg6+=) 41...Ng6 (41...Rh3 42.Rg2–/+) 42.Ne3 Kf6 (42...Rh3!? 43.Kg1 Ne7=) ˝–˝. Szymanski,Marcin – Szczechowicz,Bartosz, Slupsk POL, 1993.

5.Nc3 Nbd7 6.Nf3 (6.d4 a5 7.b5 ed4 8.ed4 Bh6=) 6...Bg7 7.d4 0–0 8.Qb3 (8.Be2 ed4 9.Nd4 c5 10.bc5 dc5=) 8...e4 (8...a5 9.a3=) 9.Nd2 Re8 10.Be2 c6 (10...a5 11.b5=) 11.0–0+= Nf8 (11...a5 12.a3+=) 12.a4 d5 (12...a5 13.b5+=) 13.c5 (13.cd5 cd5 14.Rfc1 Be6+=) 13...Bg4= 14.b5 (14.Qd1 Be2 15.Qe2 Ne6=) 14...Be2 15.Ne2 Rb8 (15...Ne6 16.a5=) 16.Bc3 (16.f3 Qe7=) 16...Ng4 (16...Ne6 17.Rfb1=) 17.Rab1 Nd7 18.Rb2 (18.h3 Ngf6=) 18...Qg5 19.Ba5 (19.Nf4 Qf6 20.Qd1 Qh4=) 19...Nh2?? (better is 19...Nc5 20.dc5 Qe5–/+) 20.Kh2+= Qh5 (20...Nc5 21.Qd1 Nd3 22.Rc2+=) 21.Kg1 Qe2 22.Ne4 Qc4 (22...de4 23.Re2) 23.Qc4 (23.Nd6!? Nc5 24.Qc4 dc4 25.bc6 Nb3+–) 23...dc4+/– 24.Nd6 Re7 (24...Nc5 25.bc6 Nb3+–) 25.Rfb1 (25.Rc1 f5+–) 25...c3 (25...Nc5 26.bc6 b6 27.dc5 Bb2 28.Rb2+–) 26.Bc3 Nc5 27.bc6 Na4? (27...b6 28.dc5 Bc3 29.cb6 ab6 30.Rb6 Rf8+–) 28.Rb7 Reb7 (28...Rbb7 29.cb7 Rb7 30.Rb7 Nc3 31.Nf7 a5+–) 29.Rb7 Rd8 30.Nf7 (30.c7 Rf8 31.Ba5 Be5 32.de5 f6+–) 30...Nc3 (30...Rc8 31.Bb4 Rc6 32.Ra7 Rb6+–) 31.Nd8 Nd5 32.e4 Nb6 33.d5 (better is 33.Rb6 Bd4 34.c7 Bb6+–) 33...Be5 34.g3 (34.Ne6 g5+–) 34...g5 (34...Nc4 35.c7 Bc7 36.Rc7+–) 35.Nf7 Bd4 36.Nh6 Kh8 37.Nf5 Be5 38.Re7 (38.Re7 h6 39.Re5+–) 1–0. Zylla,Johannes – Hielscher, BSF–VM, 1993.

5.d4= d5 6.de5 Bb4 7.Bc3 Bc3 8.Nc3 +/–.

5.Nf3 d5 6.Ne5 Qd6 (6...Bg7 7.d4+/–) 7.cd5 Qb4 8.Bc3 (8.Qc2 Bg7 9.Qc7+–) 8...Qb6 (better is 8...Qd6!?+/–) 9.Nc4+– Qc5 (9...Qa6 10.Be5 b5+–) 10.Bf6 b5 (10...Rg8 11.Nc3 Bg7 12.Bg7 Rg7+–) 11.Bh8 bc4 12.Nc3 Qa3 (12...Bd6 13.Rb1+–) 13.Bc4 Bb4 (13...Bd6 14.Rb1 a6 15.Ne4+–) 14.Qf3 Bc3 (14...Bd6 15.Qe4 Kf8 16.Qh4+–) 15.d6! Bd2 (15...cd6 16.Bc3) 16.Kf1 (better is 16.Kd2 Qd6 17.Kc1 Be6 18.Qa8 Bc4 19.Qb8 Ke7 20.Qa7 Bd5+–) 16...Be6 (16...Bf5 17.Qa8 Qb4 18.Qd5 cd6 19.Qf7 Kd8 20.Bf6 Kc8 21.Ke2+–) 17.Be6 fe6 18.Qa8 Qa6 19.Kg1 Qd6 20.Qb8 Kd7 21.Rd1 Qa3 22.Rd2 Kc6 Threatening mate... how? 23.Rc2 Kd6 (23...Qc5 24.Qe8 Kb6 25.Rb2 Ka5 26.Bc3 Qb4 27.Qc6 Qc3 28.Qb5) 24.Qd8 1–0. b4_player – opponent, gamecolony.com, 2007.

5.Nf3 Nbd7 6.Be2 Bg7 7.0–0 0–0 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 Nbd7).

5.Nf3 e4 6.Nd4 =.

5.h4 Bg7 6.Be2 h6 (6...a5 7.b5+=) 7.Nc3= Nc6 8.b5 Ne7 9.Nf3 a6 10.a4 c6 (10...0–0 11.0–0=) 11.c5+= 0–0 12.cd6 Qd6 13.Ba3 Qe6 Black prepares the advance e4 (13...c5 14.ba6 ba6 15.d4 ed4 16.ed4+=) 14.bc6 bc6 15.d4 (15.0–0 Bd7+=) 15...e4 (15...ed4 16.Nd4 Qe5 17.Qd3+=) 16.Nd2+= Re8 17.h5 (17.0–0 Ned5 18.Qc2 a5+=) 17...g5 (17...Ned5!? 18.Rc1 Nc3 19.Rc3 Nh5+=) 18.Nc4 Ned5 19.Nd5 (19.Qd2!?+/–) 19...cd5= (worse is 19...Nd5 20.Qd2+/–; 19...Qd5? 20.0–0 Qe6 21.Qc2+–) 20.Ne5 Nd7 21.Nd7 Bd7 22.g4 (22.0–0!?=) 22...Bf8 23.Bf8 Rf8 24.0–0 (24.a5 Rab8+=) 24...f5 (24...Rab8 25.Qc2–/+) 25.gf5+= Qf5 (worse is 25...Rf5 26.Bg4+=) 26.Qb3 (26.Rb1 Rab8 27.Rb8 Rb8+=) 26...Rab8–/+ 27.Qa3 Rb6 (better is 27...Rbc8 28.f3 a5+=) 28.Qe7? (better is 28.Rac1!?+=) 28...Rb2–+ 29.Bd1 Rf2 30.Qf8 (30.Be2–+) 30...Qf8 31.Rf2 0–1. Bulcourf,Carlos (2070) – Juarez,Carlos Eleodoro (2070), 16th IRT Jose Rubinstein, 2016.

5.a3 Bg7

6.Nf3 0–0 7.Be2 Nc6 8.0–0 a5 (8...e4 9.Nd4 Ne5 10.d3 ed3 11.Bd3 c5 12.Nf3 Qc7 13.Nc3 Nd3=; 8...Bg4 9.d4 ed4 10.Nd4 Be2 11.Qe2 Qe8 12.Nd2 Ne4 13.Ne4 Qe4+=) 9.b5 Ne7 10.Nc3 (10.d4 ed4 11.Nd4 Nf5 12.Nd2 Re8 13.Bd3 Nd4+=) 10...b6 (10...e4 11.Ne1 Bf5 12.f3 d5 13.cd5 Ned5+=) 11.d4 ed4 (11...Nd7 12.Qc2 Bb7 13.de5 Ne5+=) 12.Nd4 Bb7 (12...Be6 13.Re1 Qd7+=) 13.h4 (13.Bf3 Bf3 14.Qf3 Nd7+=) 13...h5 (13...Re8+=) 14.Qc2 Nd7 15.Ne4 Ne5 16.Ng5 Bc8 (16...Qc8!?+=) 17.Bh5+/– Nf5 18.Nf5 Bf5 19.e4 Be6 20.Be2 (20.Ne6?! fe6 21.Be2 Qh4=) 20...Qf6 21.Rab1 Qe7 22.f4 (22.Ne6?! Qe6 23.Qc3 Bf6+–) 22...Ng4 23.Bg7 (23.Ne6?! Qe6 24.Bg7 Kg7 25.Qc3 Kg8+–) 23...Kg7 24.f5 (24.Ne6?! Qe6 25.Qc3 Kg8+–) 24...Bf5 25.ef5 Qe3 26.Kh1 Nf2 (26...Rh8 27.Nh3 Rh4 28.Bg4 Rg4 29.fg6 Rg6 30.Rbe1+–) 27.Kh2 Rae8 28.Bf3 (28.Qb2 Re5+–) 28...Nd3 (28...Rh8 29.Rf2 Qg5 30.g3 gf5 31.Qc3 f6 32.Re1+–) 29.Qc3 Re5 (29...Qe5 30.Qe5 Ne5 31.f6 Kg8 32.Bd5+–) 30.fg6 Rh8 31.g3 (better is 31.gf7 Rh4 32.Nh3 Kf8+–) 31...Qg5 32.Qd3 Rh4 33.Kg2 fg6 34.Rbe1 Rh8 (34...Rf4 35.Rh1+–) 35.Bd5 Re1 36.Re1 Qf6 37.Qf3 (better is 37.Re6!? Qb2 38.Kf3 Rh6+–) 37...Qf3 38.Kf3 Rh2 (38...Rh7 39.Kf4+–) 39.Re2 (39.Re7 Kf6 40.Rc7 Ra2+–) 39...Rh1 (39...Re2 40.Ke2 Kf6+–) 40.Re7 Kf6 41.Rc7 Ra1 42.Rc6 Ra3 43.Kg4 Ke5 44.Rb6 a4 (44...Rd3 45.Ra6 Rd5 46.cd5 Kd5 47.Rc6+–) 45.Ra6 Ra1 46.b6 a3 47.b7 Rb1 48.Ra3 1–0. Chiarion,Elisa (1925) – Di Chiara,Mauro (1860), 9th Turin Piemonte op, 2009.

6.Nf3 0–0 7.Be2 Re8 8.0–0 Nbd7 9.d3 Qe7 10.Nbd2 b6 11.Qc2 Bb7 12.e4 h6 13.h3 Nf8 14.Nb3 Ne6 15.Nfd2 Nf4 16.Bf3 Nh7 17.Nc1 Ng5 18.Ne2 Nge6 19.Nf4 Nf4 20.Kh2 Bc8 21.a4 c5 22.b5 a6 23.a5 ab5 24.ab6 Rb8 25.Ra7 Qd8 26.b7 Bd7 27.g3 Nh3 28.cb5 Ng5 29.Qa4 Nf3 30.Nf3 Qb6 31.Qa6 Qb5 32.Qb5? (32.Qd6 Qb2 33.Qd7=) 32...Bb5–+ 0–1. Verhaeren,Gertjan – Kocandrle,Jaroslav (2140), IECG, 2004.

5.b5 Bg7

6.Nc3 0–0 7.a4 c6 (7...Nbd7 8.Nf3+=) 8.h3 Nbd7 9.Nf3 d5 (9...e4 10.Nd4 Ne5 11.f4 ef3 12.Nf3+=) 10.bc6 bc6 11.cd5 cd5 12.Ba3 Re8 13.Nb5 Nb6 (13...Re6 14.Rc1 Ne8 15.Be2=) 14.Rc1 Bd7 (14...e4 15.Nfd4 Bd7 16.Nc7 Ba4 17.Qe2=) 15.a5 (15.Nc7 Ba4 16.Qe2 Nc4 17.Ne8 Qe8+=) 15...Nc4 16.Bc4 dc4 17.Nd6 Re6 (17...e4!? 18.Ne8 Ne8=) 18.Nc4+= Bb5 19.0–0 (19.Nce5!? Qa5 20.Bb2+=) 19...Bc4= 20.Rc4 Qa5 21.Bc5 Rc8 (21...e4 22.Nd4 Ree8 23.Qc2+=) 22.d4 ed4 23.Nd4 Ree8 24.Qc2 Nd7 25.Bb4 (25.Bd6 Rc4 26.Qc4 Nb6=) 25...Qa6 26.Nc6 (better is 26.Rc3=) 26...Bf8? (better is 26...Nb6 27.Re4 Be5=) 27.Bf8+– Kf8 28.Qc3 f6 29.Ra1 Qb6 30.Rd1 (30.Rd1 Qb7 31.Qa3 Kf7 32.Rcd4+–) 1–0. Janek – AxelG, internet, 2017.

6.Nc3 0–0 7.d4 ed4 (7...a6 8.Nf3 e4 9.Nd2 ab5 10.Nb5 Bg4 11.Qb3 b6 12.Rb1 Re8=) 8.Qd4 Re8 9.Qh4 a6 10.Bd3 ab5 11.Nb5 c6 12.Nc7 Qc7+=.

6.Nc3 0–0 7.Be2 Be6 (7...a6 8.d3 ab5 9.Nb5 Nc6 10.Nf3 Re8 11.0–0 e4 12.de4 Re4+=; 7...Re8 8.Nf3 a6 9.0–0 ab5 10.cb5 e4 11.Nd4 c5 12.bc6 Nc6+=) 8.d4 ed4 9.ed4 Re8 10.d5 Bf5 11.Nf3 Ne4 12.Rc1 a6+=.

6.Nc3 0–0 7.e4 a6 (7...Nbd7 8.Nf3 Nc5 9.Qc2 a6 10.Be2 Nh5 11.0–0 Nf4 12.ba6 Ra6+=; 7...Be6 8.Nf3 a6 9.d4 ed4 10.Nd4 ab5 11.cb5 d5 12.e5 Nh5+=) 8.Nf3 Nbd7 9.Be2 ab5 10.cb5 Nc5 11.Qc2 Nh5 12.0–0 Nf4+=.

6.Nc3 0–0 7.Qf3 Qe7 (7...Re8 8.d3 a6 9.a4 Nbd7 10.Nh3 Nc5 11.Ng5 Bf5 12.Nge4 Nfe4+=; 7...Nbd7 8.Nh3 Nc5 9.d3 a6 10.ba6 Na6 11.a3 Nc5 12.Rb1 c6+=; 7...a6 8.a4 c6 9.bc6 bc6 10.e4 Nbd7 11.Ba3 Nc5 12.Bc5 dc5=; 7...c6 8.e4 a6 9.bc6 Nc6 10.Bd3 Nd4 11.Qd1 b5 12.Nge2 b4=) 8.Be2 e4 9.Qg3 Nbd7 10.d4 ed3 11.Bd3 Nh5 12.Qf3 Ne5–/+.

6.Nc3 0–0 7.Nf3 Re8 (7...a6 8.d4 e4 9.Nd2 ab5 10.Nb5 Bg4 11.Qb3 b6 12.Rb1 Re8=; 7...e4 8.Nd4 a6 9.d3 ab5 10.cb5 c5 11.bc6 ed3 12.cb7 Bb7+=; 7...Bf5 8.d4 e4 9.Nd2 a6 10.ba6 Na6 11.h3 g5 12.g4 Bg6+=; 7...Nbd7 8.d4 a6 9.Be2 ab5 10.Nb5 ed4 11.ed4 d5 12.cd5 Nd5=; 7...Qe7 8.d4 a6 9.Qa4 e4 10.Nd2 Nbd7 11.ba6 Ra6 12.Qc2 Re8=) 8.d4 ed4 9.Nd4 a6 10.Rc1 ab5 11.cb5 c5 12.bc6 bc6+=.

6.Nc3 a6 A) 7.d4 ed4 (7...e4 8.Nge2 ab5 9.Nb5 0–0 10.Ng3 c6 11.Nc3 d5 12.cd5 cd5=; 7...0–0 8.Nf3 e4 9.Nd2 ab5 10.Nb5 Bg4 11.Qb3 b6 12.Rb1 Re8=) 8.ed4 0–0 9.Bd3 d5 10.c5 ab5 11.Bb5 c6 12.Be2 b5+=; B) 7.d3 h6 (7...0–0 8.a4 ab5 9.ab5 Ra1 10.Qa1 Nbd7 11.Be2 Re8 12.Nf3 Nc5=; 7...Be6 8.Nf3 ab5 9.Nb5 0–0 10.Be2 c6 11.Nc3 Nbd7 12.0–0 d5=; 7...Bf5 8.Nf3 ab5 9.cb5 0–0 10.e4 Bd7 11.Qc2 Qe8 12.a4 c6=; 7...ab5 8.Nb5 c6 9.Nc3 d5 10.Nf3 Bg4 11.Be2 e4 12.Nd2 Be2=) 8.Nf3 ab5 9.Nb5 0–0 10.Be2 Nc6 11.0–0 Re8 12.a3 d5+=; C) 7.Be2 ab5 (7...0–0 8.d3 ab5 9.Nb5 Nc6 10.Nf3 Re8 11.0–0 e4 12.de4 Re4+=) 8.Nb5 0–0 9.d3 Nc6 10.Nf3 Re8 11.0–0 e4 12.de4 Re4+=; D) 7.Nf3 ab5 (7...0–0 8.d4 e4 9.Nd2 ab5 10.Nb5 Bg4 11.Qb3 b6 12.Rb1 Re8=; 7...Bf5 8.Be2 ab5 9.cb5 0–0 10.0–0 c5 11.bc6 Nc6 12.d4 Ne4=; 7...Qe7 8.e4 0–0 9.Be2 ab5 10.cb5 c6 11.0–0 d5 12.ed5 cd5=) 8.cb5 0–0 9.Qc2 Bg4 10.d4 Qe7 11.d5 c6 12.dc6 bc6=.

6.Nc3 Be6 A) 7.d4 ed4 8.ed4 0–0 9.d5 Bg4 10.Be2 Re8 11.h3 Bf5 12.g4 Ne4–/+; B) 7.Nf3 0–0 (7...Nbd7 8.Ng5 0–0 9.Ne6 fe6 10.d4 ed4 11.ed4 e5 12.Be2 ed4=; 7...c5 8.d4 ed4 9.ed4 0–0 10.Be2 Nbd7 11.d5 Bf5 12.0–0 Ne4=; 7...Qe7 8.Be2 0–0 9.d4 ed4 10.Qd4 a6 11.ba6 Nc6 12.Qd1 Ra6=) 8.d4 ed4 9.Nd4 Nbd7 10.Be2 a6 11.0–0 ab5 12.cb5 Qe7=; C) 7.d3 0–0 (7...a6 8.Nf3 ab5 9.Nb5 0–0 10.Be2 c6 11.Nc3 Nbd7 12.0–0 d5=; 7...Nbd7 8.Nf3 h6 9.d4 ed4 10.ed4 0–0 11.Bd3 d5 12.cd5 Nd5=; 7...h6 8.Nf3 0–0 9.d4 ed4 10.Nd4 Nbd7 11.Be2 Nc5 12.0–0 a6+=) 8.Qf3 d5 9.cd5 Nd5 10.Nd5 Bd5 11.e4 Be6 12.Ne2 a6+=; D) 7.Nh3 Nfd7 (7...Bf5 8.Ng5 h6 9.Nf3 a6 10.Be2 ab5 11.cb5 0–0 12.0–0 c5=; 7...0–0 8.Ng5 a6 9.Ne6 fe6 10.d4 ed4 11.ed4 ab5 12.cb5 c5=; 7...Bg4 8.Be2 Bh3 9.gh3 a6 10.d4 e4 11.Qb3 Nbd7 12.ba6 ba6=; 7...h6 8.Qf3 c6 9.e4 0–0 10.Be2 Qb6 11.Rb1 cb5 12.cb5 Rc8=; 7...a6 8.Ng5 Bg4 9.Be2 Be2 10.Qe2 ab5 11.cb5 d5 12.d3 c5=) 8.d3 0–0 9.Qf3 Nc5 10.Qg3 a6 11.Ng5 Bf5 12.Nge4 ab5+=; E) 7.Qf3 c6 8.e4 a6 9.bc6 Nc6 10.Nd5 Nd4 11.Qd3 Nd5 12.cd5 Bd7=.

6.Nc3 h6 A) 7.d4 ed4 (7...0–0 8.Nf3 ed4 9.Nd4 a6 10.Be2 ab5 11.cb5 c5 12.bc6 bc6=) 8.ed4 0–0 9.Be2 a6 10.ba6 Na6 11.Nf3 d5 12.0–0 Be6=; B) 7.Be2 0–0 (7...Qe7 8.d3 a6 9.Nf3 ab5 10.Nb5 Nc6 11.0–0 0–0 12.Nc3 Bg4=; 7...Be6 8.d4 ed4 9.ed4 d5 10.c5 0–0 11.Nf3 a6 12.0–0 Nh5=; 7...a6 8.d4 e4 9.Qc2 Qe7 10.a3 0–0 11.a4 ab5 12.ab5 Ra1=) 8.d4 ed4 9.ed4 a6 10.ba6 Na6 11.Nf3 d5 12.0–0 Be6=; C) 7.d3 a6 (7...0–0 8.Nf3 a6 9.d4 e4 10.Nd2 ab5 11.Nb5 Bg4 12.Qb3 b6=; 7...Be6 8.Nf3 0–0 9.d4 ed4 10.Nd4 Nbd7 11.Be2 Nc5 12.0–0 a6+=; 7...Bf5 8.Nf3 a6 9.e4 Bg4 10.h3 Bf3 11.Qf3 ab5 12.Nb5 c6=) 8.Nf3 ab5 9.Nb5 0–0 10.Be2 Nc6 11.0–0 Re8 12.a3 d5+=; D) 7.Nf3 0–0 8.d4 ed4 9.Nd4 a6 10.Be2 ab5 11.cb5 c5 12.bc6 bc6=.

6.d4 ed4 A) 7.Bd4 Nbd7 (7...0–0 8.Nf3 a6 9.Nc3 ab5 10.cb5 c5 11.bc6 bc6 12.Rb1 d5=; 7...Be6 8.Bd3 Nbd7 9.Nf3 Nc5 10.Nc3 0–0 11.Bc5 dc5 12.Qc2 Qe7=; 7...a6 8.Nf3 ab5 9.cb5 c5 10.bc6 Nc6 11.Be2 0–0 12.0–0 Nd4=; 7...Bf5 8.Nf3 0–0 9.Bd3 Bd3 10.Qd3 a6 11.0–0 ab5 12.cb5 Nbd7=; 7...Qe7 8.Nc3 0–0 9.Nf3 a6 10.Nd5 Qd8 11.Bd3 ab5 12.Nf6 Bf6=) 8.Nf3 0–0 9.Bd3 a6 10.0–0 ab5 11.cb5 Re8 12.Bc2 Ne5+=; B) 7.Qd4 Nbd7 (7...Be6 8.Nf3 0–0 9.Be2 a6 10.a4 ab5 11.cb5 c5 12.Qc3 Nbd7=; 7...0–0 8.Nf3 a6 9.Nc3 ab5 10.cb5 Bf5 11.Qd2 Nbd7 12.Rg1 Nc5+=; 7...Bf5 8.Nc3 0–0 9.Nd5 Nbd7 10.Rd1 c6 11.Nf6 Bf6 12.Qd2 cb5=; 7...a6 8.Nc3 ab5 9.cb5 0–0 10.Nf3 Bf5 11.Qd2 Nbd7 12.Rg1 Nc5+=; 7...Rg8 8.Nf3 Bf5 9.Qd1 Nbd7 10.Be2 Nc5 11.0–0 Qe7 12.Nc3 0–0–0+=) 8.Nc3 0–0 9.Rd1 Re8 10.Nd5 Ne5 11.Be2 a6 12.b6 Nd5+=; C) 7.ed4 d5 (7...0–0 8.Bd3 a6 9.Ne2 ab5 10.cb5 Be6 11.Nbc3 Nd5 12.a4 Re8=) 8.Nf3 0–0 9.Ne5 a6 10.ba6 Na6 11.Nc3 Re8 12.cd5 Nd5+=.

6.Be2 0–0 7.d4 ed4 (7...e4 8.Nd2 a6 9.Qc2 Re8 10.a4 ab5 11.ab5 Ra1 12.Ba1 c6=) 8.ed4 a6 9.ba6 Na6 10.Nf3 d5 11.0–0 Re8 12.Re1 c6=.

6.Be2 a6 A) 7.Nc3 ab5 (7...0–0 8.d3 ab5 9.Nb5 Nc6 10.Nf3 Re8 11.0–0 e4 12.de4 Re4+=) 8.Nb5 0–0 9.d3 Nc6 10.Nf3 Re8 11.0–0 e4 12.de4 Re4+=; B) 7.d3 h6 (7...0–0 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Nf3 cb5 12.cb5 Qa5=; 7...Be6 8.Nc3 ab5 9.Nb5 Nc6 10.Nf3 0–0 11.0–0 Nd7 12.d4 ed4=; 7...Bf5 8.Bf3 ab5 9.Bb7 Ra7 10.Bf3 bc4 11.dc4 Nbd7 12.g4 Be6=; 7...ab5 8.cb5 Be6 9.a4 Nbd7 10.Nf3 0–0 11.Nbd2 Nd5 12.a5 f5=; 7...Qe7 8.Nf3 ab5 9.cb5 0–0 10.0–0 Be6 11.a4 Nd5 12.Nc3 f5=) 8.Nc3 ab5 9.Nb5 0–0 10.Nf3 Nc6 11.0–0 Re8 12.a3 d5+=; C) 7.d4 e4 (7...Nbd7 8.ba6 Ra6 9.Nc3 0–0 10.Nf3 Re8 11.0–0 Ra8 12.de5 de5=; 7...ed4 8.Bd4 ab5 9.cb5 0–0 10.Nf3 c5 11.bc6 bc6 12.a4 Ba6=; 7...ab5 8.de5 de5 9.Qd8 Kd8 10.cb5 e4 11.Nc3 Ne8 12.Rd1 Nd7=; 7...Qe7 8.de5 de5 9.Nf3 Nbd7 10.Nc3 0–0 11.ba6 Ra6 12.Nd5 Qc5=) 8.Nc3 ab5 9.Nb5 c6 10.Nc3 Qa5 11.Rb1 0–0 12.h4 h5=.

6.Be2 e4 A) 7.Nc3 0–0 8.d3 Nbd7 9.de4 Ne4 10.Ne4 Bb2 11.Rb1 Bg7 12.Nf3 Re8+=; B) 7.d4 ed3 (7...0–0 8.Nd2 a6 9.Qc2 Re8 10.a4 ab5 11.ab5 Ra1 12.Ba1 c6=; 7...c6 8.Nc3 0–0 9.Rb1 cb5 10.Nb5 a6 11.Nc3 Nc6 12.Qa4 Qc7=; 7...a6 8.Nc3 ab5 9.Nb5 c6 10.Nc3 Qa5 11.Rb1 0–0 12.h4 h5=) 8.Bd3 Nbd7 9.Nf3 Nc5 10.Bc2 Be6 11.Nbd2 0–0 12.0–0 Qe7+=; C) 7.d3 ed3 8.Bd3 Nbd7 9.Nf3 Nc5 10.Bc2 Be6 11.Nbd2 0–0 12.0–0 Qe7+=.

6.Be2 Be6 A) 7.d4 ed4 (7...e4 8.Nc3 0–0 9.Qc2 Qe7 10.Rc1 a6 11.b6 c6 12.Ne4 Ne4+=) 8.ed4 d5 9.c5 0–0 10.Nf3 a6 11.0–0 Ne4 12.ba6 Na6=; B) 7.Nf3 0–0 (7...e4 8.Nd4 Nbd7 9.Nc3 Ne5 10.Ne6 fe6 11.Qc2 d5 12.Nd5 ed5+/–; 7...a6 8.Nc3 ab5 9.cb5 0–0 10.Qc2 c5 11.0–0 Nbd7 12.Ng5 d5=) 8.d4 ed4 9.ed4 a6 10.ba6 Na6 11.0–0 d5 12.Ng5 Bf5=; C) 7.Nc3 a6 (7...h6 8.d4 ed4 9.ed4 d5 10.c5 0–0 11.Nf3 a6 12.0–0 Nh5=; 7...d5 8.cd5 Nd5 9.Nd5 Bd5 10.Nf3 Nd7 11.Qc2 c5 12.e4 Be6=; 7...0–0 8.d4 ed4 9.ed4 Re8 10.d5 Bf5 11.Nf3 Ne4 12.Rc1 a6+=; 7...Nbd7 8.d4 ed4 9.ed4 0–0 10.Nf3 Nb6 11.Nd2 c6 12.0–0 Nfd7=; 7...c6 8.d4 ed4 9.Qd4 0–0 10.Rd1 Nd5 11.Qd2 Bc3 12.Bc3 Nc3=) 8.d4 ed4 9.ed4 0–0 10.d5 Bf5 11.Nf3 Ne4 12.Ne4 Bb2–/+; D) 7.d3 a6 (7...0–0 8.Bf3 c6 9.Ne2 Nbd7 10.bc6 bc6 11.Qc2 d5 12.Nd2 Rb8=; 7...Nbd7 8.Nf3 a6 9.ba6 Ra6 10.d4 Rb6 11.Qc1 0–0 12.0–0 Ne4=; 7...c6 8.Nc3 Qa5 9.Qd2 a6 10.bc6 Nc6 11.Nf3 0–0 12.0–0 b5=; 7...h6 8.Bf3 c6 9.Ne2 0–0 10.0–0 Qd7 11.bc6 bc6 12.Nd2 Nh7=) 8.Nc3 ab5 9.Nb5 Nc6 10.Nf3 0–0 11.0–0 Nd7 12.d4 ed4=; E) 7.Bf3 c6 (7...Qc8 8.d3 a6 9.a4 0–0 10.Ne2 ab5 11.ab5 Ra1 12.Ba1 c6=) 8.d3 0–0 9.Ne2 Nbd7 10.bc6 bc6 11.Qc2 d5 12.Nd2 Rb8=.

6.Nf3 0–0 7.Nc3 Re8 (7...a6 8.d4 e4 9.Nd2 ab5 10.Nb5 Bg4 11.Qb3 b6 12.Rb1 Re8=; 7...e4 8.Nd4 a6 9.d3 ab5 10.cb5 c5 11.bc6 ed3 12.cb7 Bb7+=; 7...Bf5 8.d4 e4 9.Nd2 a6 10.ba6 Na6 11.h3 g5 12.g4 Bg6+=; 7...Nbd7 8.d4 a6 9.Be2 ab5 10.Nb5 ed4 11.ed4 d5 12.cd5 Nd5=; 7...Qe7 8.d4 a6 9.Qa4 e4 10.Nd2 Nbd7 11.ba6 Ra6 12.Qc2 Re8=) 8.d4 ed4 9.Nd4 a6 10.Rc1 ab5 11.cb5 c5 12.bc6 bc6+=.

6.Nf3 0–0 7.d3 Nbd7 8.Be2 b6 (8...Nc5 9.Nc3+=) 9.Nfd2 (9.Nc3 Bb7=) 9...Bb7 10.Bf3 (10.0–0 a6+=) 10...Bf3 (10...d5 11.cd5 Nd5 12.0–0–/+) 11.Nf3+= Nh5 (11...e4 12.de4 Ne4 13.Bg7 Kg7 14.0–0+=) 12.Qc2 f5 13.Nbd2 Qe7 14.0–0–0 (14.0–0!?=) 14...a6 15.a4 (better is 15.Kb1!?–/+) 15...ab5–+ 16.ab5 Ra2 17.Nb1 (17.c5 Rfa8 18.cd6 cd6–+ (18...Qd6?! 19.Qc4 Kh8 20.Ng5+=)) 17...Rfa8 (better is 17...e4!? 18.Nd4 Bd4 19.ed4 Nf4 20.de4 fe4–+ (20...Ng2?! 21.Rhg1 Nh4 22.ef5=)) 18.Nc3–/+ R2a7 19.Kd2 (19.h4 Nhf6–/+) 19...Nhf6 20.Ra1 Ng4 (better is 20...Nc5!?–+) 21.Ra7 Ra7 22.h3 Ngf6 23.Ra1 Ra1 24.Ba1 Nc5 25.Bb2 (25.Qa2 e4 26.Nd5 Nd5 27.Qa8 Qf8 28.Qd5 Kh8 29.Bg7 Kg7=) 25...h6 (25...e4 26.Ne1–/+) 26.Ba3 (better is 26.Ke2=) 26...Ne6?? (26...e4 27.de4 Nfe4 28.Ne4 fe4 29.Ne1+=) 27.Nd5 (better is 27.Ne5 Qe8 28.Nc6+/–) 27...Qe8= 28.Nc3 Qe7 (better is 28...Kf7=) 29.Ne5!+/– Qe8 (29...de5 30.Be7 Pinning (30.Be7 Deflection)) 30.Nc6 Qf7 31.Bb2 Nc5 32.Ne2 g5 (32...Nh5 33.d4 Ne4 34.Ke1+/–) 33.f3 (33.Ned4 f4 34.Nf5 Qe6+–) 33...Ncd7 (33...Ne6 34.Ng3 f4 35.Nf5+–) 34.d4 Nh5 (34...d5 35.Qf5 dc4 36.e4+–) 35.d5?? (better is 35.Qf5! Qf5 36.Ne7 Kf7 37.Nf5+–) 35...Bb2+/– 36.Qb2 Nc5 37.Ncd4 f4 38.e4 Qf6 39.Qb1 Ng3 40.Qa1 Ne2 41.Ke2 Kh7 (41...Na4 42.Kf2+/– (42.Qa4?! Qd4 43.Kf1 Kf7=)) 42.Nb3! Qa1 (42...Nb3 43.Qf6 Discovered attack) 43.Na1 Kg6 44.Nc2 h5 45.Nb4 g4? (better is 45...Nd7+–) 46.hg4 hg4 47.Na6 (better is 47.Nd3 Nd7 48.Nf4 Kf6 49.Nd3 gf3 50.gf3+–) 47...g3?? (47...Nd7 48.Nc7 (worse is 48.fg4 Ne5+–) 48...Ne5 49.Ne6 gf3 50.gf3+–) 48.Nc7 (better is 48.Nc5 Kf6 49.Ne6+–) 48...Kf6 49.Ne8 Ke5 50.Ng7 Na4 (50...Kf6 51.Nf5 Ke5 52.Ne7+–) 51.Nf5 (better is 51.Ne6+–) 51...Nb2 52.c5! ˝–˝. Kasper,Peter (1820) – Rehder,Frank (1875), Berlin GER, 2012.

6.Nf3 0–0 7.d4 e4 (7...ed4 8.Nd4 a6 9.Be2 ab5 10.cb5 c5 11.bc6 bc6 12.Bf3 d5=; 7...a6 8.de5 Nfd7 9.Nc3 de5 10.Qc2 ab5 11.cb5 c6 12.Be2 cb5=) 8.Nfd2 a6 9.ba6 Na6 10.Nc3 Re8 11.Be2 Nb4 12.0–0 Nd3=.

6.Nf3 0–0 7.Be2 Nbd7 (7...a6 8.ba6 Na6 9.d4 ed4 10.ed4 d5 11.0–0 Re8 12.Re1 c6=; 7...e4 8.Nd4 a6 9.0–0 ab5 10.cb5 c5 11.bc6 bc6 12.a4 Nd5=) 8.0–0 (8.d4 e4 9.Nfd2 a6 10.ba6 ba6 11.Nc3 Rb8 12.Rb1 Bb7=) 8...Re8 (8...a6 9.ba6 ba6 10.Nc3 Rb8 11.Rb1 Bb7 12.d4 Ne4=) 9.Re1 (9.d4 ed4 10.ed4 d5 11.Re1 dc4 12.a4 a6=) 9...Nf8 (9...e4 10.Nd4 Ne5 11.f4 ef3 12.Nf3 Bf5=) 10.a4 (10.d4 e4 11.Nfd2 a6 12.a4 b6=) 10...h5 (10...e4 11.Nd4 Ne6 12.Nc3 Nd4+=) 11.d4 e4 12.Nfd2 N8h7 (12...a6=) 13.Nc3 Bf5 14.h3 Qd7 15.Qb3 Bh3 16.gh3 Qh3 17.Bf1 Qh4 18.f3 (18.f4 ef3 19.Nf3 Qg3 20.Bg2 Ng4+=) 18...ef3 19.Nf3 Qg3 20.Bg2 Ng4 21.Nd5 h4 22.Nf4 Bh6 23.Nh3 Ne3 24.Re3 Re3 (24...Be3?! 25.Kh1–/+) 25.Qd1 Rae8 26.Qf1 Re2 (better is 26...g5!? 27.Kh1 g4 28.Nhg1–+) 27.Bc3 g5 (better is 27...R8e3 28.Bd2 Rg2 29.Qg2 Rf3 30.Bh6 Qh3 31.Qh3 Rh3–+) 28.Be1–/+ Rg2 29.Qg2 Qg2 30.Kg2 g4 31.Nh4 gh3 32.Kh3 Re4 33.Nf5 Bf4 34.Bh4 f6 35.Rg1 Bg5 36.Re1 Bh4 37.Re4 Ng5 38.Kh4 Ne4 39.Kg4 Kf7 40.Kf4 (better is 40.d5!?+=) 40...Nc3–+ 41.a5 d5 42.b6 ab6 43.ab6 dc4 44.bc7 Ke6?? (better is 44...Nd5 45.Ke4 Nc7 46.Nd6 Ke6 47.Nc4 b5–+) 45.Ke3 0–1. Valente,Hector Manuel (1845) – Alvarez,Alberto Elias (1985), Buenos Aires ARG, Open Nov, 2011.

6.Nf3 a6 7.Nc3 ab5 (7...0–0 8.d4 e4 9.Nd2 ab5 10.Nb5 Bg4 11.Qb3 b6 12.Rb1 Re8=; 7...Bf5 8.Be2 ab5 9.cb5 0–0 10.0–0 c5 11.bc6 Nc6 12.d4 Ne4=; 7...Qe7 8.e4 0–0 9.Be2 ab5 10.cb5 c6 11.0–0 d5 12.ed5 cd5=) 8.cb5 0–0 9.Qc2 Bg4 10.d4 Qe7 11.d5 c6 12.dc6 bc6=.

6.Nf3 e4 7.Nd4 0–0 (7...Bg4 8.Qc2 Nbd7 9.h3 Be6 10.Nc3 Nc5 11.Nb3 Nb3 12.ab3 0–0=; 7...Nbd7 8.d3 ed3 9.Bd3 Ne5 10.0–0 Nd3 11.Qd3 0–0 12.Nc3 Re8=; 7...a6 8.d3 ab5 9.cb5 0–0 10.Qc2 Re8 11.Nd2 ed3 12.Bd3 Nbd7=; 7...c5 8.Nb3 Bg4 9.Qc2 0–0 10.Nc3 Re8 11.h3 Bd7 12.d4 cd4=) 8.d3 a6 9.Nd2 ab5 10.cb5 ed3 11.Bd3 Nbd7 12.0–0 Nc5+=.

5.Nc3 Bg7

6.Qb3 0–0 7.d3 a5 8.b5 Nbd7 9.Na4 Re8 10.Be2 b6 11.e4 Nf8 12.Nc3 (12.Nf3 Ne6=) 12...Ne6+= 13.a4 Nd4 (13...Bh6 14.Nf3=) 14.Qd1= Bb7 15.Nf3 Nf3 (15...Ne2 16.Qe2 Nh5 17.Nd5=) 16.Bf3 Nd7 17.h4 Nc5 18.Bc1 Bf6 (18...f5 19.Rb1=) 19.g3 (19.h5 Bg5+=) 19...h5 20.Be3 Qd7 (20...Bc8 21.Nd5+=) 21.Nd5 (21.g4!?+/–) 21...Bd5 (21...Bg7!?=) 22.cd5+/– (22.ed5? e4 23.de4 Ba1 24.Qa1 Ne4–+) 22...Kg7 (22...Bg7 23.g4 hg4 24.Bg4 Nd3 25.Kd2+– (25.Qd3?! Qg4 26.Rc1 Rac8=)) 23.Kd2 (23.g4 hg4 24.Bg4 Qe7+/–) 23...Rh8 24.Kc2 Rag8 25.Kc3 Kf8 26.Kc4 Qe7 27.Bc5 (27.Qc2 Ke8+=) 27...dc5 28.Qe2 Bg7 (28...Kg7 29.Kb3=) 29.Bg2 f5 (29...Bh6 30.Raf1+=) 30.Bh3 Qf6 31.Rae1 Ke7 32.Qb2 Kd8 33.ef5 gf5 34.f4 ef4 35.Qf6 Bf6 36.Re6 Bd4 (36...Rf8!? 37.gf4 Bh4+=) 37.gf4= Rf8 (37...Rg3 38.d6 Rf3 39.dc7 Kc7 40.Rc6 Kd8 41.Rb6 Rf4 42.Rf1 Bf2 43.Kd5+=) 38.d6 Rhg8 (38...Rf6 39.Rf6 Bf6 40.Bf5 cd6 41.Kd5+=) 39.dc7+/– Kc7 40.Rc6 (40.Rh6 Rg3 41.Rh5 Rf3 42.Bf5 Rf4 43.Rh7 Kd6 44.Rd7 Ke5 45.Rd5 Kf6+/–) 40...Kb7+= 41.Rh6 Rg4? (better is 41...Rh8 42.Re6 Rf7+=) 42.Bg4+– fg4 43.Rh7 (43.Re1 g3 44.Re7 Kc8+–) 43...Kb8 1–0. Krivoshapko,Alexander – Glushakov,Andrey, 2011.

6.d4 0–0 7.Nge2 Nbd7=+ 8.g3 Re8 9.Bg2 c6 10.d5 Qc7 11.e4 Nf8 12.0–0 Bd7 13.Rc1 a6 14.a4 g5 15.h4 h6 16.hg5+= hg5 17.f3 Ng6 18.Kf2 g4 19.f4 Bh6 20.f5 Bc1 21.Qc1+/– cd5 22.Qh6 Ne4?? 23.Ne4 Bf5 24.Nf6# 1–0. alaamattar (2225) – gtan (2390), net–chess.com, 2008.

6.d4 ed4 7.ed4 0–0 8.Be2 (8.Nf3 d5+=) 8...c5 (8...d5 9.cd5 Nd5 10.Nd5 Qd5 11.Nf3+=) 9.bc5 (9.dc5 dc5 10.Qd8 Rd8 11.bc5 Nc6=) 9...dc5 10.d5 (10.Nf3!?=) 10...Ne4+= 11.Qc2 (11.Ne4 Bb2 12.Rb1 Bg7+=) 11...Qa5–/+ 12.Rc1 Re8 13.Kf1 Nd6 (13...Bf5 14.Ne4 Be4 15.Bc3 Bc3 16.Qc3 Qa2 17.f3+=) 14.g4 (14.Rd1 Bf5 15.Qb3 Qd8+=) 14...Nd7 (14...Qd8 15.Kg2–/+) 15.Nb5+= Nb5 (15...Bb2 16.Nd6 Bc1 17.Ne8–/+) 16.Bg7 Kg7 Black gets the initiative 17.cb5 Qb4 (17...Qb6 18.Rd1+=) 18.h3 (18.Qc3 Qc3 19.Rc3 a6 20.ba6 ba6+=) 18...b6 19.Nf3 (19.Rb1 Qf4+=) 19...Qf4 (19...Bb7 20.Qc4 Qc4 21.Bc4–/+ (21.Rc4? Bd5 22.Rc3 Ba2–+)) 20.Qb2 (20.Kg2 Nf6 21.Rhd1 Bb7+=) 20...Kg8+= 21.Rc4 (21.Qd2!? Qd6 22.g5–/+) 21...Qd6–/+ 22.h4 (22.Kg2 Bb7–/+) 22...Nf6 (22...Bb7 23.Rc3–+) 23.h5 (23.g5 Nd5 24.Qd2 Bb7–+) 23...Bg4 (23...Nd5?! 24.hg6 fg6 25.Ng5–/+) 24.hg6 fg6 25.Rg4 (25.Rh4 Bf5 26.Rc1–+) 25...Ng4 26.Ng5 (26.Bc4 Qf4 27.Be2 Rad8–+) 26...Qf6 (better is 26...Nf6!? 27.Rh4 Re5 28.Qd2–+) 27.Qf6 Nf6 28.d6 (28.Ne6 Nd5 29.Bc4 Re6 30.Bd5 Rae8–+) 28...Rad8 29.Bc4 Kg7 30.Ne6 (30.Bf7 Re5 31.Ne6 Re6 32.Be6 Rd6–+) 30...Re6 31.Be6 Rd6 (31...Rd6 32.Bb3 Rd4–+) 0–1. Sazonov – Podgayets, Minsk, 1973.

6.d4 ed4+= 7.ed4 0–0 8.Be2 (8.Nf3 d5+=) 8...c5 (8...d5 9.cd5 Nd5 10.Nd5 Qd5 11.Nf3+=) 9.bc5 (9.dc5 dc5 10.Qd8 Rd8 11.bc5 Be6=) 9...dc5 10.d5 The passed pawn on d5 will become decisive later (10.Nf3!?=) 10...Ne4+= 11.Qc2 (11.Ne4 Bb2 12.Rb1 Bg7+=) 11...Qa5–/+ 12.Rc1 Re8 13.Kf1 Bf5 (13...Nd6 14.Rd1+=) 14.Ne4 Be4 (14...Re4 15.Bg7 Re2 16.Qe2 Kg7 17.Qb2 Kf8 18.Nf3+–) 15.Qb3 Qd2 16.Ba3 Na6 (16...b6+=) 17.Nf3 (17.Rd1 Qa5=) 17...Qa5 (17...Bf3 18.Qf3 Qa2 19.Re1–/+) 18.g3 (18.Rd1!?+=) 18...Re7 19.Kg2 (19.Bb2 Bb2 20.Qb2 Rae8–/+) 19...Qd2 (19...Bd5 20.cd5 Re2 21.Rhe1 Re1 22.Re1–+) 20.Rhe1 Nb4 (better is 20...Rae8!? 21.Rcd1 Qc3–/+) 21.Bb4 cb4 22.Kf1 (22.Rcd1 Qc3 23.Rc1 Qb3 24.ab3+=) 22...Qb2 (better is 22...Bf3!? 23.Qf3 Bc3+=) 23.d6+= Rd7 (23...Ree8 24.c5+=) 24.c5= Bc6 (24...Qb3 25.ab3 Bd5 26.Ne5 Be5 27.Bb5+/–) 25.Qc4 (25.Red1!?+=) 25...a5 (25...b6 26.Qa6=) 26.Rc2 (26.Ng5 h6 27.Ne4 Kh7=) 26...Qf6 27.Nd2 h5 (27...Re8 28.Rcc1+=) 28.Rd1 (28.Bd3 Rc8=) 28...Qf5 (28...b6 29.Nb3 a4 30.Nc1+= (30.cb6? ab3 31.ab3 Bb7–+)) 29.f3 (29.g4 Qe5 30.Kg1 Re8=) 29...h4 (29...b6 30.Bd3 Qc5 31.Qc5 bc5 32.Rc5 Rd6 33.Ne4 Be4 34.fe4–/+) 30.g4 (30.Kg2 h3 31.Kg1 Bd4 32.Kf1 b6+=) 30...Qe5+= 31.Kg2 Re8 (31...b5 32.Qd3+=) 32.Ne4 (32.Nb3 b5 33.cb6 Rd6 34.Rd6 Qd6=) 32...Qf4 (32...Ba4 33.Rd5 Qf4 34.g5 Re4 35.fe4 Bc2 36.Qc2–+) 33.Nf2+= Qe3 (33...Qg5 34.Nh3 Qf6 35.Rb1+=) 34.Qd3 (34.Rd3 Qe5+=) 34...a4 (better is 34...Ba4!? 35.Qe3 Re3–/+) 35.Qe3= Re3 36.Ne4?? (better is 36.Rdd2+=) 36...Re4!–+ 37.fe4 (37.Kf2 b3 38.Rcc1 Re2 39.Ke2 ba2–+) 37...Be4 Theme: Double Attack 38.Bf3 (38.Kh3 Bc2 39.Rf1 b3 40.ab3 ab3–+) 38...h3 (38...Bc2 39.Re1 b3 40.ab3 ab3 41.Bb7 h3 42.Kh3–+) 39.Kf2 (39.Kh3 Bc2 40.Re1–+) 39...Bc2 40.Rd2 b3 41.ab3 ab3 42.Bd5 (42.Bd1 Bc3 43.Rd5 Be4 44.Bb3 Bd5 45.Bd5 Bd4 46.Kg3 Bc5 47.Kh3 Bd6–+) 42...b2 (42...b2 43.Ba2 b1Q 44.Bb1 Bb1–+; 42...Bc3!? 43.Bb3 Bd2 44.Bc2–+) 0–1. Lopez Gajete,Antonio – Garcia Martinez,Silvino (2420), Malaga op 2nd, 1999.

6.Be2 a5 A) 7.Qa4 Nbd7 8.Nf3 (8.e4 0–0 9.Nf3 Nh5 10.Nd5 c6 11.Ne3) 8...0–0 9.ba5 e4 10.Nd4 Nc5 11.Qc2; B) 7.b5 0–0 8.d3 c6 9.Nf3 Bg4 10.0–0 Nbd7 11.Rb1.

6.Be2 Bf5 7.Nf3 A) 7...a5 8.b5 (8.a3 ab4 9.ab4 Ra1 10.Ba1 Nc6 11.d4) 8...0–0 9.0–0 Nbd7 10.d4 c5 11.d5; B) 7...Nbd7 8.0–0 (8.a3 0–0 9.0–0 a5 10.d4 Re8 11.Nh4; 8.d4 a5 9.ba5 0–0 10.Qb3 Qc8 11.Nd5; 8.d3 a5 9.b5 0–0 10.0–0 Nc5 11.d4) 8...a5 9.a3 0–0 10.d4 Re8 11.Nh4; C) 7...0–0 8.0–0 Re8 9.d3 a6 10.e4 Bd7 11.Qd2.

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

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

6.h3 0–0 7.Nf3 a5 8.b5 Nbd7 9.d4 ed4 10.ed4 Re8 11.Be2 b6 (11...a4 12.0–0+=) 12.0–0= Bb7 13.Re1 Ne4 14.Nd2?? (better is 14.Ne4 Re4 15.Qd2=) 14...Nf2!–+ 15.Kf2 Bd4 16.Kf1? (16.Kg3 Bc3 17.Bc3 Re3 18.Kh2 Rc3 19.Ne4 Be4 20.Qd4–+) 16...Qh4 17.Nce4 (17.Nde4 Be4 (17...Re4?! 18.Ne4 Bb2 19.Bf3 Ba1 20.Qa1–+) 18.Ne4 Bb2–+ (worse is 18...Re4 19.Bd4 Rd4 20.Qc2–+)) 17...Bb2 (17...Re4?! 18.Ne4 Bb2 19.Bf3 Ba1 20.Qa1–+) 18.Rb1 Be4 (18...Re4 19.Ne4 Qe4 20.Bf3 Qc4 21.Qe2 Qe2 22.Ke2 Bf3 23.Kf3–+) 19.Ne4 Re4 (19...Qe4?! 20.Rb2 Re5 21.Bf3 Qc4 22.Ree2–+) 20.Qc2 (20.Rb2 Ne5 21.Qb1–+) 20...Be5 21.Rbc1 (21.Bf3 Rc4 22.Qf2 Bg3–+) 21...Re8 (better is 21...Rf4 22.Bf3 Bd4 23.Red1–+) 22.Bf3 Re1 23.Re1 Qg3 24.Bc6 (24.Qe4 Qh2 25.Qe3 Re6–+) 24...Qf4 25.Bf3 Qh2 (25...Re6 26.Re4 Qh2 27.Qd1–+) 26.Qd3 Qh1 (26...Qh1 27.Kf2 Bd4 28.Re3 Re3–+) 0–1. Jonsson,Pall G – Lyly,S (1935), Reykjavik ISL, Nordic Senior Ch, 2011.

6.d3 0–0

7.Nf3 a5 8.a3 ab4 9.ab4 Ra1 10.Qa1= Na6 11.Qa3 Qe7 12.Be2 Bf5.

7.Nf3 a5 8.a3 Nc6 9.b5+= Ne7 10.Be2 h6 (10...Bg4 11.0–0 Re8 12.d4 e4) 11.0–0 (11.d4 ed4 12.Nd4 Nf5) 11...Ne8 (11...Re8 12.d4 (12.e4 Bd7) 12...ed4+= (12...e4 13.Nd2+=); 11...Be6 12.d4 ed4) 12.d4 Bg4 (12...ed4!? 13.Nd4 Nf6+=) 13.de5+/– Bf3 (13...de5 14.Ne5! Be2 15.Ne2+/–) 14.Bf3+– (14.gf3?! de5 15.c5 c6+=) 14...Be5 (14...c6 15.ed6 Nd6 16.Qd3+–) 15.Bb7 Rb8 16.Bf3 Qd7 (16...Nc8 17.Qd3+–) 17.Qa4 f5 (17...Qe6 18.Rfc1+–) 18.Qa5 g5 (18...Nf6 19.a4+–) 19.g3 (19.Rfd1 g4 20.Be2 f4+–) 19...g4 20.Bg2 Qe6 21.Rac1 (21.Rfc1 c5+–) 21...Qg6 (21...c6 22.a4+–) 22.Qa7 Kh8 (22...Rd8+–) 23.Qb8 h5 (23...Qe6 24.Bd5 Nd5 25.cd5+–) 24.Qd8 (24.Qd8 Bf6 25.Qd7+–) 1–0. marre – Dupontel, internet, 2010.

7.Nf3 a5 8.a3 Re8 A) 9.Be2 ab4 (9...Bg4 10.b5 h6 11.0–0 Nbd7 12.Ne1 Be2; 9...Be6 10.b5 h6 11.d4 Nbd7 12.0–0 Qe7; 9...Qe7 10.0–0 h6 11.b5 Be6 12.d4 Nbd7) 10.ab4 Ra1 11.Qa1 Qe7 12.0–0 Bg4; B) 9.b5 Bg4 (9...d5 10.cd5 Nd5 11.Nd5 Qd5 12.d4 e4; 9...Be6 10.Be2 h6 11.0–0 Nbd7 12.d4 Qe7; 9...Bf5 10.e4 Be6 11.Be2 Nh5 12.0–0 Nf4) 10.Be2 h6 11.0–0 Nbd7 12.e4 Nc5.

7.Nf3 a5 8.a3 Bf5 A) 9.Be2 ab4 (9...Re8 10.e4 ab4 11.ab4 Ra1 12.Qa1 Bg4) 10.ab4 Ra1 11.Ba1 Na6 12.b5 Nc5; B) 9.b5 Qe8 (9...Re8 10.e4 Be6 11.Be2 Nh5 12.0–0 Nf4; 9...Nbd7 10.Be2 Nc5 11.0–0 a4 12.d4 ed4; 9...Qe7 10.Be2 Nbd7 11.0–0 Nc5 12.e4 Bg4) 10.e4 Bd7 11.Be2 h6 12.0–0 c6.

7.Nf3 a5 8.a3 h6 A) 9.Be2 ab4 (9...Be6 10.b5 Nbd7 11.0–0 Nb6 12.Na4 Na4; 9...Re8 10.b5 Nbd7 11.0–0 Nb6 12.d4 Bg4; 9...Bf5 10.b5 Nbd7 11.0–0 Nc5 12.d4 ed4) 10.ab4 Ra1 11.Qa1 Qe7 12.0–0 Re8; B) 9.b5 Re8 (9...Be6 10.Be2 Nbd7 11.0–0 Re8 12.Nd2 d5; 9...Nbd7 10.Be2 Qe8 11.0–0 Qe6 12.d4 Re8; 9...Bg4 10.Be2 Nbd7 11.0–0 Qe7 12.Nd2 Be2) 10.Be2 Be6 11.0–0 Nbd7 12.d4 Qe7.

7.Nf3 a5 8.b5 A) 8...Nbd7 A1) 9.a3 Ne8 (9...Nc5 10.Be2 a4 11.d4 ed4 12.ed4 Nb3; 9...Re8 10.Be2 Ra7 11.0–0 Nb6 12.e4 Bh6; 9...Qe7 10.Be2 Re8 11.0–0 Nb6 12.e4 Bg4) 10.Be2 f5 11.0–0 Nef6 12.d4 e4; A2) 9.Rb1 Qe7 10.Be2 Nb6 11.0–0 a4 12.a3 Re8; A3) 9.Be2 Re8 (9...Qe7 10.0–0 Re8 11.d4 Nb6 12.Rc1 ed4; 9...Nb6 10.0–0 a4 11.a3 Re8 12.Qd2 h6; 9...Nc5 10.0–0 Re8 11.Re1 Bf5 12.d4 Nce4) 10.0–0 Qe7 11.d4 Nb6 12.Rc1 ed4; B) 8...Re8 9.Be2 (9.e4 Nbd7 10.Be2 Nh5 11.0–0 Nf4 12.Nd5 Ne2) 9...Nbd7 10.0–0 Nb6 11.Na4 Na4 12.Qa4 Nd7; C) 8...Bf5= C1) 9.e4 Be6 (9...Bd7 10.Be2 Nh5 11.Bc1 f5 12.0–0 Nf4) 10.Be2 Nh5 11.0–0 Nf4 12.Bc1 Ne2; C2) 9.Be2 Nbd7 (9...h6 10.0–0 Nbd7 11.d4 c5 12.d5 e4) 10.0–0 Nc5 11.d4 ed4 12.Nd4 Be6.

7.Nf3 Na6 8.a3=.

7.Nf3 Nc6 8.a3 A) 8...a6 A1) 9.Qd2 d5 10.Be2 d4 11.ed4 Nd4 12.Nd4 ed4; A2) 9.Qc2 Bf5 (9...Bg4 10.Be2 Qd7 11.0–0 Rae8 12.Rad1 h6; 9...Re8 10.Be2 d5 11.0–0 d4 12.Ne4 Ne4; 9...h6 10.Be2 Bg4 11.0–0 Re8 12.Nd5 Nd5) 10.Be2 Re8 11.0–0 e4 12.Ne4 Ne4; A3) 9.Be2 Re8 (9...Bg4 10.0–0 Re8 11.h3 Bd7 12.d4 ed4; 9...h6 10.0–0 Re8 11.e4 Nd4 12.Nd4 ed4; 9...Bd7 10.0–0 Re8 11.d4 ed4 12.ed4 Bg4) 10.0–0 d5 11.b5 ab5 12.cb5 Na5; B) 8...Bg4 9.Be2 h6 (9...Re8 10.0–0 Qd7 11.Nd5 Nd5 12.cd5 Ne7; 9...a6 10.0–0 Re8 11.Nd2 Be6 12.Bf3 d5; 9...Qe7 10.0–0 Rfe8 11.b5 Nd8 12.h3 Be6) 10.0–0 Re8 11.h3 Be6 12.b5 Na5; C) 8...Re8 9.Be2 Bf5 (9...Bg4 10.0–0 a5 11.b5 Ne7 12.h3 Bd7; 9...a6 10.0–0 d5 11.b5 ab5 12.cb5 Na5; 9...Be6 10.0–0 h6 11.b5 Na5 12.Qa4 c6) 10.0–0 Qe7 11.Nd5 Nd5 12.cd5 Nd8; D) 8...Bf5 9.Be2 Re8 (9...Qd7 10.0–0 a6 11.e4 Be6 12.Nd5 Rae8; 9...a6 10.0–0 Re8 11.e4 Bg4 12.Nd5 Bf3; 9...h6 10.0–0 a6 11.e4 Be6 12.Nd5 Re8) 10.0–0 Qe7 11.Nd5 Nd5 12.cd5 Nd8.

7.Nf3 Nc6 8.b5 Ne7 9.Nd2 (9.Be2 a6= (9...Bg4 10.d4 ed4 11.Nd4 Be2 12.Qe2 a6; 9...Be6 10.d4 ed4 11.Nd4 a6 12.0–0 ab5; 9...Re8 10.0–0 a6 11.a4 Bg4 12.Ng5 Be2) 10.0–0 ab5 11.cb5 Be6 12.d4 e4; 9.Qc2 a6 (9...Be6 10.Be2 c6 11.a4 cb5 12.ab5 Qc7; 9...Bg4 10.Be2 a6 11.0–0 ab5 12.cb5 Re8; 9...Bd7 10.Be2 a6 11.0–0 Re8 12.a4 Bg4) 10.Be2 ab5 11.cb5 c5 12.0–0 Ned5) 9...a6 (9...Be6 10.Be2 a6 11.ba6 ba6 12.0–0 Rb8; 9...d5 10.Nf3 Bg4 11.h3 Bf3 12.Qf3 a6; 9...Bf5 10.Qf3 Qc8 11.Nde4 Ne4 12.Ne4 a6) 10.a4 (10.ba6 Ra6 11.Be2 Be6= (11...Re8 12.0–0 Be6) 12.0–0 Re8) 10...ab5 (10...Qd7 11.Qf3= (11.Be2 d5 12.Nf3 e4) 11...Qf5 12.Be2 h6; 10...Re8 11.Be2 Be6 12.0–0 d5) 11.ab5= Ra1 12.Ba1 (12.Qa1 Nf5) 12...c6 (12...d5 13.Nf3 Qd6 14.Be2=) 13.Be2 Be6 14.0–0 Qc7 15.Qa4 Nd7 16.e4 (16.Bb2 Nb6 17.Qc2 Ra8=) 16...f5 17.f3 (17.Re1 Nc5 18.Qb4 Ra8=) 17...Qb6 (17...Bh6 18.Qc2+=) 18.Kh1 Qe3 19.Nb3 (19.Qc2!?+=) 19...fe4–/+ 20.de4 Nb6 21.Qa7 cb5 (worse is 21...Nc4 22.Qb7 Qg5 23.bc6+=) 22.Qb7 Nec8 (worse is 22...Bc4 23.Bc4 bc4 24.Qe7 cb3 25.Qd6+/–) 23.Nc1 bc4 24.Qa6 Ne7 25.Qb7 Rf7 26.Qb8 (26.Qa6 Bh6–/+) 26...Nec8–+ 27.Rd1 Ra7 28.Bb2 Qc5 29.Nd5 Bd5 (29...Bd5 30.ed5 Qb5–+; 29...Nd5?! 30.ed5 Bf5 31.Bc3–+) 0–1. Houthuijsen – Andersson,Egart, corr SOK–97–119, 1999.

7.Nf3 Be6 8.Be2 Nbd7 9.Ng5 Qe7 10.0–0 c6 11.Bf3 h6 12.Ne6 fe6 13.Ne4 Ne8 14.Rb1 d5 15.Nd2 Nd6 (15...b5 16.Qc2=) 16.e4 dc4 17.dc4 c5 18.Ba3 b6 19.Qe2 Nb7 20.Rfd1 Rac8 21.b5 Nf6 22.Bb2 Nh7 23.g3 (23.Bg4 h5 24.Bf3 Rcd8+/–) 23...Rf7 24.Bg2 Rcf8 25.Rf1 Ng5 26.Rbd1 Qc7 (26...Rd8!?+/–) 27.h4+– Nh7 28.Nf3 (28.Qg4 g5+–) 28...Rd8 29.Rd8 Nd8 30.Rd1 Nf8 31.Bc3 Rd7 32.Rd7 Nd7 33.Qd1 Kf7 34.Bh3 Ke7 35.Kf1 Nf7 36.Qd3 Qd6 37.Ke2 Qd3 38.Kd3 Bf6 39.a4 g5 40.hg5 Ng5 41.Bg2 Nf3 42.Bf3 Bg5 43.Be2 Bc1 44.a5 Bg5 45.a6 Bc1 46.Bd1 Bg5 47.Ke2 Kd6 48.Kf1 Nf6 (better is 48...Bc1+–) 49.f4! ef4 50.e5 Ke7 51.ef6 Bf6 52.Bd2 (better is 52.Ba5! fg3 53.Bb6 Bd4+–) 52...fg3 (52...Kd6 53.Bf4 Be5 54.Bh6 Bg3 55.Bg5+–) 53.Bf4 (better is 53.Ba5! Be5 54.Bb6 Bb8 55.Bc5 Kf6+–) 53...e5 54.Bg3 (54.Bh6 Ke6+–) 54...Kd6 55.Kg2 Bg5 (55...Ke6 56.Bg4 Kf7 57.Kf3+–) 56.Kf3 Bf4 (56...Bd2 57.Ke4 Bc3 58.Bh4+–) 57.Bf2 (better is 57.Bf4!? ef4 58.Kf4 Ke6+–) 57...Ke6 (57...Bg5+–) 58.Bc5! 1–0. Fekete,Albert (2260) – Nagy,Mihaly (2185), HUN–chT2 Maroczy, 2008.

7.Nf3= Re8 8.Qb3 (8.Be2 c5=) 8...c6 (8...a5 9.b5=) 9.Be2= d5 (9...a5 10.b5=) 10.d4 (10.0–0 a5=) 10...e4 (10...ed4 11.Nd4 a5 12.cd5 ab4 13.Qb4 Nd5 14.Nd5 Qd5 15.Bf3+=) 11.Nd2 Be6 12.0–0 Nbd7 13.a4 (13.a3 dc4 14.Qc2 b5=) 13...h5 (13...dc4 14.Bc4 Bc4 15.Nc4=) 14.b5 (14.cd5 Bd5 15.Nd5 Nd5+=) 14...Nf8 (14...dc4 15.Bc4 Bc4 16.Nc4+=) 15.Ba3 (15.cd5 cd5 16.a5 h4+=) 15...Bg4 (15...dc4 16.Bc4 Rc8 17.Be6 Re6 18.Rac1+=) 16.bc6 (16.Bg4 hg4 17.Bf8 Rf8+=) 16...bc6 17.Bg4 Rb8 18.Qa2 hg4 19.Rab1 (19.Rfb1 Qd7+=) 19...Qa5 (19...Qd7 20.Bf8 Bf8 21.c5+=) 20.Qc2 Qc7 21.Rb8 (21.cd5 cd5 22.Rfc1 Rb1 23.Qb1 Rb8+=) 21...Rb8 22.Rc1 Qd7 23.Rb1 Rc8 (23...Rb1 24.Qb1 Qc7 25.Qb3+=) 24.a5 Ne6 25.a6 Bh6 (25...Qc7 26.Qa4 g3 27.hg3+/–) 26.Nf1 (26.Rb7 Rc7 27.Rb8 Rc8 28.Rc8 Qc8+/–) 26...Rc7 (26...Bg7 27.Qa4+/–) 27.Rb8 Kh7 28.Qb3 (28.Na4 Bg7+/–) 28...dc4 (28...Ng5 29.cd5 cd5 30.Nb5+–) 29.Qc4 Ng5 (29...Bg7 30.Ng3+–) 30.Ng3 c5 (30...Bg7 31.Bc5+–) 31.d5 (31.Bc5 Qc6+–) 31...Qd6 (31...Qe7 32.Nb5 Rd7 33.Qc5 Qc5 34.Bc5 Rd5 35.Ba7 Rd1 36.Nf1+–) 32.Rb7 (32.Rb7 Qe7 33.Rc7 Qc7 34.Qc5+– (34.Bc5?! Bf8 35.Qd4 Qc5 36.Qf6 Bd6+–; 34.Nce4 Nge4 35.Ne4 Ne4 36.Qe4 Qa5+=; 34.Nge4 Nge4 35.Ne4 Ne4 36.Qe4 Qa5+=); 32.Nge4?! Nge4 33.Ne4 Ne4 34.Qe4 Re7+/–; 32.Nce4?! Nfe4 33.Ne4 Ne4 34.Qe4 Re7+/–) 1–0. Simula,Leon (1970) – Kiselev,Gennadij (2405), Kalotturneringen, 2001.

7.Nf3 Bg4 8.Be2 Nc6 9.0–0 Nb4–/+ 10.a3 Bf3 11.Bf3= Nc6 12.Re1 Re8 13.Qc2 Qd7 14.Rad1 Ne7 15.d4 ed4=+ 16.ed4 c6 17.h3 Nf5 18.Ne4=+ Ne4 19.Be4 d5 20.Bf5 Qf5 21.Qf5 gf5 22.c5 b6–/+ 23.Re8 Re8 24.cb6 ab6 25.Kf1 c5 26.Rd2 c4 27.Re2 Re6 28.f3 b5 29.g3 h5 30.Kf2 Kh7 31.Bc3 Bf8 32.Bb4? Bb4 33.ab4 Kg6 34.Re3? f4! 35.gf4?? Kf5 36.Re5 Re5 37.fe5 Kf4 38.Ke2 Kg3 39.Ke3 Kh3 40.f4 Kg3 41.f5+– c3 42.e6 fe6 43.fe6 h4 44.e7 h3 45.e8Q c2 46.Qg8 Kh2 47.Kd2 Kh1 48.Kc2 h2 49.Qd5 Kg1 1–0. marnzell – yulio, ChessWorld.net, 2006.

7.g3 c6 8.Bg2 Nbd7 9.b5 cb5=+ 10.cb5 Nc5 11.Nge2= Bf5 12.e4 Be6 13.0–0 Qd7 14.d4 ed4 15.Nd4 Bh3 16.Re1 Bg2 17.Kg2 Rfe8 18.f3 Ne6 19.Ne6 Qe6 20.Qd2+= Rad8 21.Qf2 b6 22.Rad1 h5 23.Qd2+/– Kh7 24.Ba3 Bf8 25.Nd5 Nd5 26.Qd5 Qf6 27.Re2 Re5 28.Qc6 Qe6 29.f4 Qg4 30.Red2 Rc8 31.Qc8 Qc8= 32.fe5 de5 33.Bf8 Qf8 34.Rd7 Kg7 35.R1d6 Qc8=+ 36.Kf3 Qc4 37.Rd2 Qb5 38.Ra7 Qf1 39.Ke3 Qc1 40.Rad7=+ g5 41.R7d5 Qc3 42.Kf2 g4 43.R5d3 Qc5 44.Kg2 Qc4 45.Re3 Qc1 46.Rde2 Kg6 47.Rb3 Qc6 48.Rbe3 f5 49.Rb3 f4 50.gf4 ef4 51.Kg1 Qc5 52.Kf1 f3 53.Reb2 Qc4 54.Kf2–/+ Qd4 55.Kg3 Qe5–+ 56.Kh4 Qg5 57.Kg3 h4 58.Kf2 Qc5 59.Kf1 Qc4 60.Kf2 Qd4 61.Kf1 g3 62.Rb6 Kg5 63.hg3 hg3 64.R2b5 Kf4 (65.Rf6 Ke4 66.Rf3 Kf3 67.Rb3 Kf4 68.Rg3 Kg3 69.Ke2 Kf4 70.a4 Qc3 71.Kf2 Qd2 72.Kf1 Kf3 73.a5 Qd1#) 0–1. Lehr,Thomas – Scheller,Claus Dieter, Schleswig Holstein–ch qual, 1997.

7.g3 Bf5 8.Bh3 =+.

6.Be2 0–0

7.Qb3 Nbd7 8.Nf3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 e4 12.Nd4 Ne5 13.f4 ef3 14.Nf3 Be6 15.0–0 c6 16.Ne5 de5 17.Qb2 Nd7 18.Ne4 f5 19.Nc5 Nc5 20.bc5 Rf7 21.d3 Rd7 (21...Qa5 22.d4+=) 22.Re1 (22.Qa3 Qg5 23.Rf3 e4 24.de4 fe4=) 22...e4 (22...Qa5!? 23.Rd1 Qc5–/+) 23.d4+= f4 24.Qb1 Qh4 25.Rf1 fe3 26.g3 Qd8 27.Qe4 Bh3 28.Rf3 (28.Rd1 Re7 29.Qh4 Qf8+=) 28...Re7 29.Qh4 (29.Qf4 Qe8 30.Qh4 Qd7–/+) 29...Qd7–/+ 30.Rf4? (30.Qg5 Re8 31.Re3 Bd4 32.Bd4 Qd4 33.Kf2 Rf8 34.Ke1 Qa1 35.Kd2 Qb2 36.Kd1–+) 30...Bf5?? (better is 30...h6 31.g4 g5 32.Rf8 Kf8 33.Qh3 Ke8–+ (33...Bd4?! 34.Qh6 Rg7 35.Bd4 Qd4 36.Qd6 Qd6 37.cd6–+)) 31.g4+= Bc2 32.Bc3 Re4 Pawn d4, live or die! 33.g5 Bd4 34.Re4 Be4 35.Qe4 Bc3 36.Bg4 Qd8 37.h4 Bd4 38.Kf1 (better is 38.Kg2+=) 38...Qf8–+ (38...Bc5?? 39.Be6 Kf8 40.Qf4 Kg7 41.Qe5 Kf8 42.Qh8 Ke7 43.Qf6 Kd6 44.Qd8 Ke6 45.Qf6 Kd7 46.Qf7 Kc8 47.Qh7+–) 39.Bf3 Bc5 (39...Qc5?! 40.Qe6 Kf8 41.Qc8 Ke7 42.Qb7 Ke6 43.Qc8 Kf7 44.Qd7 Kf8 45.Qc6 Qc6 46.Bc6=) 40.Ke2 Qd6 41.Qe8 (41.Kf1 Kf7 42.Bg4 Bd4–+) 41...Kg7 42.Bg4 (42.Kf1 Qd3 43.Kg2 Qc4 44.Qe5 Kf7 45.Qh8 Qc2 46.Kh3 Qf5 47.Kg2–+) 42...Qd2 43.Kf3 Qd1 0–1. Vasut,Karel (2165) – Piza,Vlastimil (2255), CZE–chT2d, 2006.

7.d3 Na6 8.b5 (8.Qb3 Bf5 9.Nf3 c5 10.b5 Nc7 11.0–0; 8.a3 Re8 9.Nf3 c5 10.bc5 dc5 11.Nb5) 8...Nc5 9.Nf3 a6 10.0–0 ab5 11.cb5.

7.d3 c5 8.a3 (8.bc5 dc5 9.Nf3 Nc6 10.Rb1 Bg4 11.0–0) 8...Be6 (8...Na6 9.bc5 dc5 10.Nf3= Qe7 11.0–0; 8...Qb6 9.Nf3 cb4 10.Na4 Qc7 11.ab4) 9.Nf3 Nc6 10.b5 Ne7 11.0–0 Qc7 (11...a6 12.Ng5=) 12.Qc2 (12.Ng5 Nf5=) 12...d5 (12...a6 13.Qb3=) 13.cd5+= Nfd5 14.Ne4 (14.Nd5 Nd5 15.Rfc1 Rfc8+=) 14...f5 (14...b6 15.Rfc1=) 15.Neg5 (15.Ned2 Bd7 16.Nc4 Bb5 17.Be5 Be5 18.Nce5 Qd6+/–) 15...Bd7= 16.e4 Nf4 17.Qc4 Kh8 18.Rae1 fe4 19.Ne4 Rac8 (19...Rad8+=) 20.Nfg5 (better is 20.Neg5!? Nfd5 21.Qh4+/–) 20...h6+= (worse is 20...Ne2 21.Re2 Nf5 22.Rd1+/–) 21.Nf3 Rfd8 (21...Nf5 22.Bc1+=) 22.g3 (22.Qf7 Bf5 23.Ne5 Ne6+=) 22...Be6+= 23.Qc3 Ne2 24.Re2 Bg4 25.Ned2 Increasing the pressure on the isolated pawn on e5 25...Nf5 26.Re4 (26.Qc4 Nd4 27.Bd4 cd4 (worse is 27...ed4 28.Rfe1=) 28.Qc7 Rc7+=) 26...Nd4 27.Nd4 ed4 28.Qb3 Bf5 29.Re2 a6 30.ba6 ba6 31.Rfe1 Rb8 (31...Qc6 32.Qc2+=) 32.Qc2 Qc6 33.Bc1 Re8 34.f3 Re2 35.Re2 Be6 36.Kg2 Re8 37.Re4 (37.a4 Bh3 38.Kf2 Rc8+=) 37...Qd7 (37...Rc8 38.Re2+=) 38.Nc4+= Bh3 39.Kg1 Re4 40.fe4 Qg4 41.Kf2 Qh5 42.Bf4 g5 43.Bd6 Qf7 44.Ke2 Qf1 45.Kd2 Qg1 46.Qd1 Qh2 47.Qe2 Qg1 48.Qd1 Qf2 (48...Bf1 49.Qf3+=) 49.Qe2= Qf7 50.Bc5 (50.e5!?=) 50...Bf1+= 51.Qd1 Qf2 52.Kc1 Be2 53.Qd2 Qf1 54.Kc2 Bg4 55.Bd6 Be6 56.Qc1 Qf6 (better is 56...Qf3 57.Nd2 Qf6+=) 57.Qg1?? (better is 57.Be5 Qf8 58.Bg7 Kg7 59.Qb2 Qf2 60.Nd2=) 57...Bc4–+ 58.e5 Qf5 59.Qd4 Be6 60.Qe3 (60.Qb6 Bc8–+) 60...g4 (60...Qf1 61.Kd2–+) 61.Kd2 Qf3 (61...Qf1 62.d4–+) 62.d4 (62.Qf3 gf3 63.Ke3 Bd5–+) 62...Qg2 63.Ke1 Qc2 64.Bb4 Qb2 65.Qe4 Qh2 66.Qf4 Qg1 67.Kd2 Qg2 68.Ke3 Kg8 69.Qf2 Qh1 (69...Qd5 70.Qf1–+) 70.Kd2 Bd5 71.Qe3 Qg2 (71...Bf3 72.Qb3 Kh8 73.Qc4 Qg2 74.Kc1–+) 72.Ke1 Qh1 73.Kd2 Qf3 74.Qf3 gf3 75.a4 (75.Ke3–+) 75...f2?? (better is 75...h5 76.Kd3 Bh6–+) 76.Ke2–/+ Kf7 77.Kf2 h5 78.Ke3 Ke6 79.Kd3 Bf3 ˝–˝. Pleschke,Helmut – Andersson,Egart, corr SOK, 1998.

7.d3 Nc6 8.a3 Re8 9.Nf3 Bg4 10.0–0 a6 11.Ng5.

7.d3 Nc6 8.b5 Ne7 9.Nf3 a6 10.a4 Be6 11.0–0.

7.d3 Nc6 8.b5 Ne7 9.Nf3 e4 10.Nd4 ed3 11.Qd3 Nf5 12.Nf3 Nd7 13.Rd1 Nc5 14.Qc2 Nh4 15.0–0 Bf5 16.Qc1 Nf3 17.Bf3 Nd3 18.Qc2 Nb2 19.Qb2 Qh4 20.Qb3 Be6 21.Nd5 c6 22.bc6 bc6 23.Nf4 Be5 24.g3 Qf6 25.Bc6 Rab8 26.Qa4 Bf4 27.ef4 Bg4 28.Rd2 Qc3 29.Qc2 (worse is 29.Rd6 Be2=) 29...Qa3 30.Re1 Rb6 31.Bd5 Bf5 32.Qc1 Qa5 33.Be4 (33.Rde2!? Bd3 34.Qd2 Qd2 35.Rd2+–) 33...Be4 34.Re4 Rfb8 35.Kg2 Qc5 36.Qc3 Qc6 37.f3 Rb1 38.Re7 Qc5 39.Re3 R1b4 40.Rde2 Qc6 41.Qd4 a5 42.Qa7 (42.Rd3!?+=) 42...Qc4= 43.Qa5 Rb2 44.Kf2 Qd4 45.Qe1?? (better is 45.Qc3 Re2 46.Ke2 Rb2 47.Ke1 Qc3 48.Rc3 Rh2 49.a4=) 45...Re2–+ 46.Ke2 Rb2 47.Kf1 Ra2 (better is 47...Rd2 48.Re4 Qd3 49.Kg1 Rd1–+) 48.Qc3= Qc3 49.Rc3 Kg7 50.Rd3 Ra6 51.Kg2 Kf6 52.g4 Ke6 53.Re3 Kd7 54.f5 gf5 55.gf5 Ra5 56.f6 Re5 57.Ra3 Ke6 58.Ra6 Rf5 59.Kg3 Rf6 60.Kg4 Ke5 61.Ra4 Rg6 62.Kh5 d5 63.Ra7 (63.f4 Kf5–/+) 63...Ke6 64.h4 (better is 64.Ra6!? Kf5 65.Ra7–+) 64...d4–+ 65.Rb7 (65.Ra5 Rg8 66.Ra2 d3–+) 65...Rg3 66.Rb4 Ke5 (66...d3 67.Kh6 Rf3 68.Kh7–+) 67.Rb5 Ke6 68.Rb4 d3 69.Rd4 (69.Kh6–+) 69...Rf3 70.Kg4 (70.Kh6 Ke5 71.Rd7 Rf6 72.Kh7 Rd6 73.Re7 Kf4 74.Rf7 Kg4–+) 70...Re3 (better is 70...Ke5 71.Rd7 Rf4 72.Kg3 Rd4 73.Re7 Kd6–+) 71.Kf4 Rh3 72.Kg4 (72.Rd8 Ke7 73.Rd5 Rh4 74.Kg5–+) 72...Ke5 73.Rd7 Re3 74.Rf7 (74.Kg5–+) 74...Re4 75.Kf3 d2 76.Re7 Kd6 77.Re4 d1Q 78.Kf4 Qd2 79.Kf5 Qd3 80.Kf4 Kd5 81.Re5 Kd4 82.Re6 Qf1 83.Kg5 Qg2 84.Kf4 Qh2 85.Kg4 Qg2 86.Kf4 h5 87.Rd6 Kc5 88.Rf6 (88.Rd8–+) 88...Qg4 89.Ke5 Qh4 0–1. Letzelter,Jean_Claude – Lamorelle,Yves, Saint–Quentin France, ChampionshipVeter, 2015.

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

5.d3 Bg7

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

6.Be2 Bd7 7.Nf3 Nc6 8.b5 Ne7 9.0–0 0–0 10.Nbd2 Re8 11.a4 a5 12.Qc2 b6 13.Nb3 Rc8 14.Rac1 Nf5 (14...c6 15.Qd2=) 15.Rfe1 Bh6 16.Bf1 (16.Nbd2 c6+=) 16...c6= 17.Qb1 c5 18.Rcd1 Qe7 (18...Bg7 19.Be2=) 19.h3+= Ng7 20.d4 Bf5 21.Qa1 Bc2 22.de5 de5 (22...Bd1?? 23.ef6 (23.Qd1?! de5 24.Ne5 Qe6=) 23...Qc7 24.Rd1+– (24.fg7?! Bb3 25.Bf6 Re6=)) 23.Be5 Ne4 (23...Bd1? 24.Bf6 (24.Rd1?! Nd7 25.Bh2 Nf5=; worse is 24.Qd1 Rcd8 25.Bd3 Ne6+=) 24...Qe6 25.Rd1+– (worse is 25.Qd1 Qf6 26.Qa1 Qa1 27.Na1 Rcd8+=)) 24.Qb2 (24.Bd3 Bd1 A) 25.Be4? Bf3 (25...Bb3?! 26.Bd5–+) 26.Bf3 Qe5–+; B) 25.Rd1=) 24...Bd1–/+ 25.Rd1 f6 26.Nbd2?? (better is 26.Bf4 Bf4 27.ef4–/+) 26...Nd2–+ (26...fe5?! 27.Ne4 Rcd8 28.Rd8 Qd8 29.Ne5=) 27.Bf6 Nf3 28.gf3 0–1. Duncan,Patrick C M (2035) – Arapalea,Daniel_Ionel (1810), London ENG, 5th Classic Open, 2013.

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

5.d4 ed4

6.ed4 c6 7.Bd3 Qe7 (7...d5 8.c5=) 8.Ne2+= Bg7 9.0–0 0–0 10.Nd2 Re8 (10...d5 11.c5=) 11.Qc2 (11.Re1 d5 12.c5 Qc7+=) 11...c5 (11...d5 12.c5=) 12.Nf3 (12.bc5!? dc5 13.d5+=) 12...Bg4+= 13.Ne5 (13.Ne5 de5 14.de5–+). Trkn – tangohotel, itsyourturn.com, 2001.

6.ed4 Nc6 7.a3 A) 7...Qe7 A1) 8.Be2 d5 (8...Bg4 9.h3 Be2 10.Ne2 d5 11.c5 Bg7) 9.Nf3 Bf5 10.0–0 0–0–0 11.Re1 Qd7; A2) 8.Qe2 Bg4 (8...d5 9.Nf3 Be6 10.Bc3 a6 11.Ne5 Ne5) 9.Qe7 Ne7 10.h3 Bd7 11.Nf3 Bg7; B) 7...d5 8.Nf3 (8.Nd2 Bg7 9.Ngf3 0–0 10.Be2 dc4 11.Nc4 Ne7) 8...Bg7 9.Be2 dc4 10.Bc4 0–0 11.0–0 Qd6; C) 7...Bg7 C1) 8.Nf3 0–0 (8...d5 9.Be2 dc4 10.Bc4 0–0 11.0–0 Bg4) 9.Be2 d5 10.Ne5 Qe8 11.0–0 dc4; C2) 8.Be2 d5 (8...0–0 9.Nf3 d5 10.Ne5 Qe8 11.0–0 dc4) 9.c5 Ne4 10.Nf3 0–0 11.0–0 Re8.

6.ed4 Nc6 7.b5 Ne7 8.Be2 (8.Nf3 Bg7 (8...d5 9.Bd3 dc4 10.Bc4 Bg7 11.0–0 0–0) 9.Bd3 d5 10.0–0 dc4 11.Bc4 0–0; 8.Bd3 d5 (8...Bg7 9.Nf3 d5 10.0–0 dc4 11.Bc4 0–0) 9.c5 Bg7 10.Nf3 0–0 11.0–0 Re8) 8...Bg7 (8...d5 9.c5 Bg7 10.Nf3 0–0 11.0–0 Re8) 9.Nf3 0–0 (9...a6 10.ba6 ba6 11.Nc3 Rb8) 10.0–0 Re8 (10...d5 11.c5 Re8) 11.Nbd2 (11.Re1 a6=) 11...Nf5 (11...a6 12.ba6 Ra6 13.Re1=) 12.Re1 Bd7 (12...a6 13.a4=) 13.a4 h6 (13...a6 14.Qb3=) 14.c5 (14.Qc2 a6+=) 14...dc5 (14...Nd5 15.Bc4 Re1 16.Qe1=) 15.dc5+= c6 16.Qc2 Rc8 (16...Qc7 17.Bd3+=) 17.Nb3 (17.Bc4 Be6+=) 17...cb5 (17...Be6 18.bc6 Rc6 19.Nbd4 Nd4 20.Nd4+=) 18.ab5 Ra8 (18...Be6 19.Ra7 Qb6 20.cb6 Rc2 21.Bf6 Bb3 22.Bg7 Ng7 23.Rb7+–) 19.c6 (19.Bc4 Be6+/–) 19...bc6+= 20.bc6 Be6 (20...Qc7 21.Rac1 Bc8 22.Bd3+=) 21.c7 Qd5 (21...Qc8 22.Nfd4+=) 22.Nbd2 (22.Nfd4 Nh4 23.Bf1 Bd7+/–) 22...Qd6 (22...a5 23.Be5+/–) 23.Be5 Qd7 24.Reb1 (24.Qb2 Nd5 25.Bb5 Be5 26.Re5 Qc7 27.Be8 Re8+/–) 24...Qe7 (24...Nd6 25.Ra6 Bf5+/–) 25.Rb8 (better is 25.Bb5 Nd7 26.Bg7 Ng7 27.Bc6+–) 25...Nd6?? (better is 25...Nd5 26.Bg7 Ng7 27.Ra8 Ra8+=) 26.Ra8+– Ra8 27.Ba6 (better is 27.Qc6 Bd5 28.Qd6 (28.Bd6?! Bc6 29.Be7 Nd5 30.Ra7 Ne7 31.Ra8 Ba8+–) 28...Qd6 29.Bd6+–) 27...Nfe8+/– 28.Bg7 Kg7 (28...Ng7 29.Re1 Qf8 30.Ne4+–) 29.Rc1+– Bc8 30.Bd3 (better is 30.Qc6 Qc7 31.Qc7 Nc7 32.Rc7 Ba6 33.Rc6+–) 30...Bb7= 31.Qc3 Kg8 (31...Kh7 32.Qa5=) 32.Ne5 (32.Qa5!?=) 32...Rc8 33.Re1 Rc7 34.Qa1 Qd8 35.Qa2 (35.Ndc4 Qg5 36.g3 Ba8+=) 35...Kg7 36.Ndf3 Nf6 37.Nd4 Bd5 38.Qd2 (38.Qa5 Nde4+=) 38...Rb7 39.Ra1 (39.Nc2 Re7+=) 39...Qe7 (39...Nfe4 40.Qe3–/+) 40.Re1 (40.Nec6 Qd7 41.Ne5 Nde4 42.Nd7 Nd2 43.Nf6 Kf6+=) 40...Qd8 41.Qf4 (41.Ra1 Nfe4 42.Qe3 Qf6+=) 41...Kh7 (41...Nh5!? 42.Qd2 Qg5 43.Qg5 hg5–/+) 42.Qh4 (42.Ndc6 Bc6 43.Nc6 Qc7=) 42...Kg7 (42...Qa5 43.Rd1 Kg7 44.Qf4+=) 43.Ng4 (43.Qf4 Nh5 44.Qg4 Qg5 45.Qg5 hg5–/+) 43...h5+= 44.Ne3 Qe7?? (better is 44...Be4 45.Bc2 Rb2+=) 45.Nef5!+– Nf5 (45...Nf5 46.Nf5 Double attack (46.Re7 Discovered attack); 45...gf5 46.Nf5 Double attack (46.Re7 Discovered attack)) 46.Nf5 gf5 47.Re7 Re7 1–0. Gutsko,Anastasiya – Samaganova,A., World Youth Chess Fes (7), 1995.

6.ed4 Nc6 7.Nc3 Bg7 A) 8.Be2 d5 (8...Nd7 9.Nd5 Ne7 10.Ne3 0–0 11.Nf3 d5) 9.b5 Ne7 10.Nf3 0–0 11.0–0 a6; B) 8.b5 Ne7 (8...Na5 9.Qa4 c6 10.Nf3 0–0 11.Be2 d5) 9.Nf3 0–0 10.Bd3 Re8 11.0–0 a6.

6.ed4 Nc6 7.d5 Qe7 8.Be2 Ne5 9.Na3 Bf5 10.Kf1 Bg7 11.Nc2 0–0.

6.ed4 Nc6 7.Qe2 A) 7...Qe7 8.a3 (8.Qe7 Be7 9.a3 d5 10.Nf3 Be6 11.Nbd2 0–0) 8...Bg4 (8...d5 9.Nf3 Be6 10.Ne5 Nd8 11.Qc2 Bg7) 9.Qe7 Ne7 10.h3 Bd7 11.Nf3 d5; B) 7...Ne7 8.Qd2 (8.Qf3 Bg7 9.Nd2 0–0 10.Ne2 d5 11.c5 Bg4) 8...d5 (8...Bg7 9.Nf3 0–0 10.Be2 d5 11.0–0 dc4) 9.Nf3 Bf5 10.Nc3 Bg7 11.Be2 a5.

6.ed4 Qe7 7.Qe2 =.

6.ed4 Qe7 7.Be2 Bg7 8.Nf3 0–0 9.0–0 c6 (9...a6 10.Re1+=) 10.Re1+= d5 (10...Na6 11.Bd3 Qd8 12.a3+=) 11.Bd3 (11.b5 cb5 12.cb5 Re8+=) 11...Qd6 (11...Be6!? 12.Qb3 Nbd7+=) 12.b5+/– Re8 13.Nbd2 (13.Re8 Ne8 14.Ba3 Qd7 15.cd5 Qd5+/–) 13...Re1+= 14.Qe1 dc4 15.Nc4 Qe6 (15...Qd8 16.Rc1+=) 16.Nce5 h6 (16...cb5 17.Bb5 Qb6 18.Rc1+=) 17.bc6 (17.Bc4 Nd5 18.Qa5 b6+/–) 17...bc6 (17...Nc6!? 18.Bc4 Nd5 19.Qe4+–) 18.Qa5+– Nbd7? (better is 18...Bf8+–) 19.Bc4 Nd5 (19...Ne5 20.Be6 (20.de5?! Qc4 21.ef6 Bf8=) 20...Nf3 21.gf3 Be6 22.Qc7+–) 20.Nc6! N7b6 (20...Qc6 21.Qb5 Double attack (21.Qb5 Decoy; 21.Qd5 Remove defender)) 21.Bd5 (21.Bd5 Nd5 22.Qd5 Qd5 23.Ne7 Kh7 24.Nd5+–) 1–0. Grasso,Gae (2030) – Bocci,A (1905), Erice ITA, 3rd Open, 2012.

6.Qd4 Bg7+= 7.c5 (7.Nf3 Nc6 8.Qc3 Bf5+=) 7...0–0 (7...Nc6 8.Qd2+=) 8.cd6= cd6 9.Bc4 (9.Qh4!?=) 9...Nc6–/+ 10.Qd2 (10.Qc3 Be6 11.Nd2 d5+=) 10...d5 (10...Ne4 11.Qe2 Bg4 12.Nf3–/+ (12.Qg4? Nf2 13.Kf2 Bb2–+)) 11.Bd3 Be6 (11...d4 12.ed4 Nd4 13.Bg6 Qe7 14.Qe3–+) 12.b5 (12.Ne2 Ne4 13.Be4 de4 14.Bg7 Kg7+=) 12...Na5 13.Qb4 (13.Bd4 Nc4 14.Qb4 Rc8+=) 13...Nc4 14.Bd4 Qc7 (14...a5 15.Qa4+=) 15.Nc3 (15.Nd2 Rfc8=) 15...Ne5 (15...a5 16.Qb3=) 16.Be5 Qe5 17.Nf3 Qc7 18.Nd4 Rac8 (18...Rfc8 19.Rc1=) 19.Nd1 (19.Rc1 Ne4 20.Be4 de4=) 19...Ng4+= 20.h3 (20.Be2 Nh6+=) 20...Ne5 21.Be2 Nc4 22.Ne6 fe6 23.Rc1 Qe5 (23...Rfd8 24.h4+=) 24.0–0 Nb2 (better is 24...Qe4!?+=) 25.Rc8+= Rc8 26.Nb2 Qb2 27.Qe7 (27.Qe7 Qf6 28.Qb7+/–) 1–0. marekt – drjjm, GameColony.com, 2002.

6.Qd4 Bg7 7.Nf3 Nc6 8.Qc3 0–0 9.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Qd4 Nc6 9.Qc3).

6.Bd4 Bg7 7.Bd3 Nc6 8.Bc3 0–0 9.b5 Ne5=+ 10.Nf3 Nd3 11.Qd3 Bf5 12.Qd2 Ne4–/+ 13.Qc1 Nc3–+ 14.Nc3 Bg4 15.0–0? Bf3–+ 16.gf3 Qg5 17.Kh1 c6 18.Rg1? Qf6 19.Qf1 Qc3 20.Rc1 Qf6 21.f4 cb5 0–1. gtate (1900) – danielro (1740), net–chess.com, 2004.

6.Bd4 Bg7 7.Nf3 0–0 8.Bd3 c5 9.Bb2 cb4 A) 10.Nd4 Na6 (10...Nbd7 11.0–0 Nc5 12.Be2 Nfe4 13.f3 Ng5; 10...Bg4 11.Qd2 Na6 12.0–0 Nc5 13.f3 Bd7; 10...Nc6 11.Nd2 Ne5 12.Be2 Re8 13.0–0 Bd7) 11.0–0 Re8 12.a3 Qb6 13.ab4 Nb4; B) 10.Nbd2 Na6 (10...Nbd7 11.0–0 Nc5 12.Bc2 Re8 13.Bd4 Qa5; 10...Nc6 11.0–0 Re8 12.Nd4 Nd7 13.N2f3 Nde5; 10...Bg4 11.h3 Be6 12.0–0 Nbd7 13.Qe2 Nc5) 11.0–0 Nc5 12.Bc2 Re8 13.Bd4 Qa5; C) 10.0–0 Nc6 (10...Na6 11.a3 Bg4 12.Bd4 Re8 13.Be2 ba3; 10...Qc7 11.Nd4 Nc6 12.a3 Bg4 13.Qd2 ba3; 10...Re8 11.Nd4 Na6 12.a3 Qb6 13.Qd2 ba3) 11.Nbd2 Re8 12.Nd4 Nd7 13.Re1 Nc5.

6.Bd4 Bg7 7.Nf3 0–0 8.Bd3 c5 9.bc5 dc5 10.Bb2 Nc6 (10...Bg4 11.0–0 Bf3 12.gf3 Nc6 13.Qe2 Re8; 10...Na6 11.Nc3 Nb4 12.Bb1 Qe7 13.a3 Rd8; 10...Qd6 11.Nc3 Rd8 12.Qb3 Bg4 13.Be2 Qe7) 11.Nc3 Nb4 12.Bb1 Be6 13.Qe2 Qe7.

6.Bd4 Bg7 7.Nf3 0–0 8.Bd3 c5 9.bc5 dc5 10.Bc3 Nbd7 (10...Bg4 11.Be2+= (11.0–0 Bf3 12.gf3 Nc6 13.Qe2 Qe7) 11...Qd1 12.Bd1 Rd8 13.Nbd2 Nbd7; 10...Qd6 11.0–0 Nc6 12.Bc2 Qe7 13.Nbd2 Rd8; 10...Nc6 11.Qc2 Nb4 12.Bb4 cb4 13.Nbd2 Ne4; 10...Re8 11.Qc2 Nc6 12.0–0 Bg4 13.Nbd2 Qe7) 11.0–0= b6 (11...Qe7 12.Qc2 Nb6 13.Nbd2 Rd8) 12.Qc2 (12.Nbd2 Qe7 13.e4 Rd8) 12...Bb7 13.Nbd2 Qc7 (13...Qe7=) 14.Rfd1 Rae8 15.a4 Re7 (15...a5 16.Rab1=) 16.a5+= Rfe8 (16...ba5 17.Ba5 Nb6 18.Bb6 ab6 19.Ra7=) 17.ab6 ab6 18.Ra7 Ra8 19.Rda1 Ree8 (19...Ra7 20.Ra7 Qb8 21.Qa2+=) 20.Qb2 Ra7 21.Ra7 Ra8 22.Ra8 Ba8 23.h3 Qb7 (23...Bf3 24.Nf3 Qd6 25.Bc2+=) 24.e4 Qc7 25.e5 (25.Qc2 Bc6+=) 25...Nh5 26.Be4 Be4 27.Ne4 Nf4 (27...Qc6 28.Qe2+=) 28.Qd2 Ne6 29.Nd6 Qc6 30.Nb5 Ndf8 31.Qe3 h6 32.Nd2 g5 (32...Nc7 33.Nd6+=) 33.h4 (33.Nf3!?+/–) 33...gh4= 34.f4 (34.Ne4=) 34...Ng6 (better is 34...h3!? 35.Ne4 hg2=) 35.f5+/– Ngf4 (35...Nef4 36.Ne4 Ng2 37.Kg2 Ne5 38.Be5 Be5 39.Kh3+/–) 36.Ne4 (better is 36.Nf3 Nh5 37.fe6 Qe6 38.Qe4+–) 36...h3?? (better is 36...Ng5 37.Nbd6 Ne4 38.Ne4 Nh5+/–) 37.fe6+– Ng2 (37...Ne6 38.gh3 Qa8 39.Nbd6+–) 38.ef7 (38.Qh3!? Nf4 39.Qf3 Ne2 40.Qe2 Qe6+–) 38...Kf8 39.Qh3 Qe4 (39...Nf4 40.Qg4 Qg6 41.Qg6 Ng6+–) 40.Qc8 Kf7 41.Nd6 ˝–˝. Karacsony,Zsolt (2075) – Tamba,Dumitru (1790), Deva tt, 1999.

6.Bd4 Bg7 7.Nf3 0–0 8.Bd3 Re8 9.0–0 Nc6 10.Qd2 Bg4 11.b5 Bf3 12.gf3 Nd4 13.ed4 h6 (13...c5 14.bc6 bc6 15.Nc3–/+) 14.Nc3 Kh7 (14...d5 15.Rfe1–/+) 15.Rae1 Ng8 (15...Qd7!?+=) 16.Re8= Qe8 17.Re1 Qd7 18.Ne2 Qh3 (18...d5 19.c5+=) 19.Be4= c5 (better is 19...Qc8!?=) 20.dc5+/– (20.dc5 dc5 21.Qd5+/–) 1–0. Vettenburg,Louis – Kusters,E, corr ICCF, 1983.

6.Bd4 Bg7 7.Nf3 Nc6 (7...c5 8.Bc3=) 8.Bc3 Qe7 9.Bd3 0–0 10.0–0 Bd7 (10...a5 11.b5 Ne5 12.Ne5 de5 13.Qa4=) 11.Nbd2 Ne5 (11...a5 12.a3=) 12.Be2 (12.Ne5 de5 13.Qf3 Rad8=) 12...Nf3 (12...Rfd8 13.Re1=) 13.Bf3 c6 14.a4 a6 (14...Be6 15.b5=) 15.Rb1 (15.a5 Rae8+=) 15...Be6 (15...Rfe8 16.a5+=) 16.Re1 (16.a5 d5+=) 16...Rfd8 (16...d5 17.Bd4 Rfd8 18.c5+=) 17.b5 (17.e4 b5+=) 17...ab5= 18.cb5 d5 19.a5 c5 (19...Bf5 20.Rb3=) 20.Qa4 (20.Qc2!?=) 20...Ne4 21.Bg7 (21.Ne4 de4 22.Bg7 ef3 23.Bc3 fg2 24.Kg2 Qg5 25.Kf1–+) 21...Nd2–/+ 22.Bh6 (22.Bc3!? Nb1 23.Rb1–/+) 22...Nb1 23.Rb1 Bf5 24.Rc1 (24.Rd1 Be4 25.Be2 Rdc8–/+) 24...Be4 25.Qd1? (better is 25.Be4 de4 26.Qa1–/+) 25...Bf3–+ 26.Qf3 f5 (26...f5 27.Qf4 Rd7–/+ (27...Ra5?! 28.Bg5 Qd6 29.Bd8 Qd8 30.Rb1–/+); 26...Ra5!? 27.Rb1–+) 0–1. Stapinski,Ryszard – Grzegorzewski,Stanislaw, corr XVII Warsaw ch, 1994.

6.ed4 d5

7.c5 Qe7 8.Be2 Bg4=.

7.c5 Bg4 8.Be2 Qe7 9.h3 Be2 10.Ne2 =.

7.c5 Bg7 8.Bd3 0–0 9.Ne2 Re8 10.0–0 Ng4 11.h3 Nh6 12.b5 Bf5 13.Ng3 Bd3 14.Qd3 Nd7 (14...a6 15.a4=) 15.Nc3 c6 16.Bc1 Qh4 17.Be3 (17.Bh6 Qh6 18.Rab1 Re7=) 17...Re3+= 18.Qe3 Decoy theme: e3 (18.fe3 Deflection from g3 18...Qg3) 18...Bd4 19.Qd2 Ne5 20.Rad1?? (better is 20.Nge2 Bc5 21.bc6 bc6 22.Nd5+=) 20...Nf3!–+ (20...Bc5?! 21.Nce2+=) 21.gf3 Qg3 22.Kh1 Qh3 23.Kg1 Qg3 (23...Be5 24.Rfe1 Nf5 25.Nd5 Bh2 26.Kh1 cd5 27.f4 Nh4 28.Re8 Re8 29.Qd5 Bg3 30.Kg1 Qh2 31.Kf1 Qf2) 24.Kh1 Qf3 25.Kg1 Qg3 (25...Qc3?! 26.Qd4 Qd4 27.Rd4–+) 26.Kh1 Qh3 (26...Qc3?! 27.Qd4 Qh3 28.Kg1–+; 26...Bc3?! 27.fg3 Bd2 28.Rd2–/+) 27.Kg1 Ng4 (27...Ng4 28.Qf4 Be5–+ (28...Qc3?! 29.Rd4 f5 30.Rb4–+); 27...Qc3?! 28.Qd4 Qd4 29.Rd4–+; 27...Bc3 28.Qe2 Bb4 29.Rd3–+) 0–1. Vogel,Frank – Mohaupt,Hermann, corr DDR–ch 4th, 1966.

7.c5 Bg7 8.Qe2 Kf8 9.Nd2 Bg4 10.f3 Be6 11.0–0–0 Kg8 12.Re1 h6 13.Qe3 Nc6 14.b5 Ne7 15.Ne2 Bd7 16.Ng3 Nf5 17.Nf5= Bf5 18.g4 Bd7 19.h4 c6 20.bc6 Bc6 21.Qc3 Ne8 22.h5 Nc7 23.hg6+= fg6 24.Nb3 Qf8 25.Na5 Re8 26.Re8 Qe8 27.Nc6 Qc6 28.Qa5 Ne6 29.Bb5 Qc8 30.Re1+= h5 31.Qa7+/– h4 32.Qa4 Bh6 33.Kd1 Nc7 34.Qc2 Kg7 35.Bd3 Qf8+/– 36.Rf1 g5 37.Qh2 Qd8 38.Rh1 Re8 39.f4! gf4 40.Qh4 Qh4 41.Rh4 Re3 42.Kc2 Rg3 43.Bc1 Ne6= 44.Kc3 Ng5 45.a4 Ne4=+ 46.Kc2 Bg5 47.Rh2 Rg4 48.Be2 Rg3 49.Bd3 f3 50.Bg5 Rg5 51.Rh4 Rg2 52.Kc1 f2 53.Rf4=+ Nc3 54.Bf1 Rh2 55.a5 Ne4 56.a6 ba6 57.Ba6 Rh1 58.Kc2 Rh6 59.Bd3 Rf6–/+ 60.Rg4 Kf7 61.Bf1–/+ Kf8 62.Kd3 Rf3 63.Ke2 Rf6 64.Ke3 Rf7 65.c6 Rf6 66.c7 Rc6 67.Rf4 Kg7 68.Bd3 Rc3 69.c8Q Rc8 70.Be4 de4 71.Rf2+= Rf8 72.Rg2+/– Kf7 73.d5 Ke8 74.Ke4+/– Kf7 75.d6?? Ke8?? 76.Kd5+– Rf4 77.Kc5 Rh4 78.Rg8 Kd7 79.Rg7 Kd8 80.Rg3 Kd7 81.Rg5 Kd8 82.Rf5 Ke8 83.Rf3 Kd7 84.Rf7 Kd8 85.Re7 ˝–˝. Machete99 (2220) – blik (2415), ICC, 2002.

7.c5 Bg7 8.Qe2 Kf8 9.Nf3 Bf5 10.Ne5 Nfd7 11.g4 Be6 12.Nd2 Ne5 13.de5 h5 14.gh5 Rh5 15.Nf3 Nd7 16.Qe3 c6 17.Be2 Bg4 18.Rg1 Bf3 19.Bf3 Rh4 20.Bg4 Qe7 21.f4 Rh2 22.0–0–0 Nf6 23.Bf3 a5 24.Qa3 Nh5 25.Bh5 Rh5 26.Kb1 Qh4 27.Rgf1 g5 28.e6 gf4 29.Bg7 Kg7 30.Qf3 Re5 31.ef7 Re4 32.b5 Kf7 33.Rh1 Rb4 34.Kc1 Rc4 35.Kd2 Qf6 36.Rh7 Kf8 37.Rb7 Re8 38.Rf7 Kf7 39.Qh5 Kf8 40.Qe8 Ke8 41.Re1 Kd8 42.Rb1 Qd4 43.Ke2 Qe4 44.Kd1 Rc2 45.Rb2 Qe2# 0–1. Machete (2305) – blik (2450), ICC, 2003.

7.c5 Bg7 8.Nf3 0–0 9.Be2 Re8 =.

7.Nd2 Bb4 8.Be2 dc4 9.Bc4 Qe7 10.Be2 Ne4 11.Ngf3 Bg4 12.0–0?? Nd2–+ 13.Nd2 Be2 (14.Qb3 0–0–+; 13...Qe2 14.Re1 Qe1 15.Qe1 Kd7 16.Qe4 Bd2 17.Qg4 f5 18.Qe2+–) 0–1. Loulou – mpreuss, playchess.de, 2003.

6.ed4 Bg7

7.Nc3 0–0+= 8.Be2 (8.Nf3 Qe7 9.Be2 d5=) 8...Re8 (8...d5 9.cd5 Nd5 10.Nd5 Qd5 11.Nf3+=) 9.Nf3= Bg4 (9...d5 10.0–0=) 10.0–0 Nc6 (10...d5 11.c5=) 11.b5 Ne7 12.h3 Bd7 (12...Bf5 13.Re1=) 13.Re1 d5 (13...Bf5 14.Qb3=) 14.c5 (14.Ne5 Be6+=) 14...c6 (14...Bf5 15.a4=) 15.bc6 (15.Ne5 Be6+=) 15...bc6= 16.Ne5 Rb8 17.Rb1 (17.Bc1 Nf5=) 17...Bc8 (17...Bf5 18.Bd3=) 18.Qa4 (18.Bd3 Qc7+=) 18...Bf5= 19.Bd3 Ne4 (19...Qc7!?=) 20.Be4 (20.Ne4 de4 21.Be4 Be4 22.Re4 Qc7+/–) 20...de4 21.Ne4 (21.g4 Be6 22.Ne4 Rf8+/–) 21...Qc7 (21...Qd5 22.Nc3 Qd8 23.Ne4=) 22.g4 (22.Nd6 Bb1 23.Ne8 Re8 24.Rb1 Rb8+/–) 22...Be6 (22...Be4!? 23.Re4 h6+=) 23.Nd6+/– Red8 24.Ndc4 (24.Bc3 Rb1 25.Rb1 Be5 26.de5 Rb8 27.Rb8 Qb8+/–) 24...f6 (24...Bd5!?+=) 25.Ng6+/– Ng6 26.Re6 Nf4? (26...Rd4 27.Qc2 (worse is 27.Bd4 Rb1 28.Qd1 Rd1 29.Re1 Re1 30.Kg2 Nh4) 27...Rd5 28.Ne3+/–) 27.Re3 (27.Rc6!? Qd7 28.Ne3 Nh3 29.Kf1 Qf7+–) 27...Qd7 (27...Rd4 28.Qc2 (28.Bd4?! Rb1 29.Kh2 Nd5 30.Rg3 Bh6+=) 28...Rd5 29.Nd6+/–) 28.Qc2 (better is 28.Nd6!?+–) 28...Qd5+= Threatening mate: Qg2 29.Rg3 Re8 30.Kh2?? (better is 30.Nd6 Re6 31.a3+=) 30...Re2–+ 31.Qa4?? (31.Ne3 Rc2 32.Nd5 Nd5 33.Rb3 Rb3 34.ab3 Rf2 35.Kg3–+) 31...Rf2 32.Kg1 Nh3 0–1. Barbosa,R – Calixto,R, Guarapuava op, 1992.

7.Qe2 Kd7 8.Qd3=.

7.Qe2 Qe7 8.Nc3 Nc6 9.Nb5 Qe2 10.Be2 Kd8 11.a3 Bf5 12.d5 Ne5 13.Rd1 (better is 13.Be5!? de5 14.d6 cd6 15.Nd6+=) 13...Re8+= 14.Be5 Re5 (worse is 14...de5 15.d6 cd6 16.Nd6+–) 15.Nd4 Bd7 16.Ngf3 Re7 17.0–0 a6 18.Rfe1 Ke8 19.Bd3 Re1 20.Re1 Kf8 21.Kf1 ˝–˝. Boehnke,Hartmut (2045) – Giobbi,Costantino (2275), corr EM/M/185 ICCF Email, 2002.

7.Qe2 Kf8 8.Nd2 Bg4 9.f3 Bf5 10.0–0–0 Nc6 11.g4 Nb4 12.gf5 Na2 13.Kb1 Nb4 14.fg6 Qd7 15.gh7 Re8 16.Ne4 Qa4 17.Nc3 Qb3 18.Qd2 Rh7 19.h4 (better is 19.Be2!?+–) 19...Bh6+= 20.Qh2 a5 21.Bh3 Qc4 22.Nge2 Nd3 (better is 22...Nfd5 23.f4 Na2 24.Nd5 Re2 25.Qe2 Qe2=) 23.Bf5+/– Nb2 24.Kb2 Qb4 25.Kc2 Rg7? (better is 25...Nd5!? 26.Rd3 Qa3+–) 26.Rb1+– Qa3?? (26...Qc4 27.Bd3 Qe6+–) 27.Rb3 (27.Rb7 Nd5 28.Nd5 Qf3–+) 27...Qb4 28.Rb4 ab4 29.Nb5 Nd5 30.Nc7 Nc7 (30...Re2 31.Qe2 Rg2 32.Qg2 Ne3 33.Kb3 Ng2 34.Kb4+–) 31.Qd6 Re7 (31...Kg8 32.Qh6 Re2 33.Kd3+–) 32.Kd3 b3 (32...Be3+–) 33.Qh6 Ke8 34.Qh8 1–0. Bonetti,Shane – GreatTit (1635), ICC, 2002.

7.Qe2 Kf8 8.Nf3 Bf5 9.d5 (9.Nc3 Nc6 10.a3 d5=) 9...Na6 10.a3 Qd7 11.Qd1 Re8 (11...Ne4 12.Bd4+=) 12.Be2+= Qe7 (12...Bg4 13.0–0=) 13.Nd4 Qe4 (13...Bg4 14.f3 Bd7 15.0–0+=) 14.Nf5 (14.0–0!?+/–) 14...Qf5+= 15.0–0 Ne4 16.Bg7 Kg7 17.Ra2 Qf6 18.f3 (18.Bd3 Re7+=) 18...Nc3 19.Nc3 Qc3 20.Re1 Qe3 21.Kf1 Re5 22.Bd3 Qe1 (22...Qd4!?+=) 23.Qe1+/– Re1 24.Ke1 Re8 25.Re2 Re2 26.Ke2 Kf6 ˝–˝. Machete99 (2175) – bifsoper (1875), ICC, 2002.

7.Nf3 0–0=.

7.Nf3 Qe7 8.Be2 0–0 9.0–0 Bg4 10.Nbd2 Qd7 11.Re1 Nc6 12.a4 a5 13.b5+= Nb4 14.Ba3 Rae8 15.Bb4 ab4 16.Qb3 c5 17.bc6+/– Qc6 18.Qb4 Ne4 19.Ne4 Re4 20.d5 Qd7 21.Ra2 Rc8 22.Rc2 Bf3+= 23.Bf3?? Rf4 24.a5+/– Rf3? 25.gf3+– Qh3?! 26.Re4 Be5 27.f4 Bf6? 28.Rce2?? Bh4?? 29.R4e3 Qg4 30.Kh1 h5 31.Qd6 Bf2?? 32.Rf2 Qd1 33.Kg2 Qg4 34.Rg3 Qd1 35.f5 (35.f5 Rc4 36.fg6+–) 1–0. toll (1690) – foxbat, ICC, 2003.

5.d4 Nbd7

6.Qa4 ed4–/+ 7.Bd4 Bg7 (7...Be7 8.Nf3+=) 8.Nd2+= 0–0 9.Bc3 (9.Ngf3 c5 10.bc5 Nc5+=) 9...Nb6 (9...a5!? 10.ba5 Nc5 11.Qb4–/+) 10.Qc2–/+ Re8 11.Bd3 d5 12.Ngf3 dc4 13.Bc4 Nc4 14.Nc4 Be6 (14...Qd5 15.Bd4–/+) 15.Ncd2 (15.Rd1 Qe7 16.0–0 Bc4 17.Bf6 Qe6+= (worse is 17...Qb4 18.Bg7 Kg7 19.Rb1+=)) 15...Nd5 (15...Bf5!? 16.Qb3 Qd3–/+) 16.Bg7+= Kg7 17.0–0 Qf6 (17...Qe7 18.Nd4+=) 18.a3 Bg4 19.Nd4 c6 (19...Qg5 20.N2f3 Qe7 21.Nd2=) 20.h3 Bd7 (20...Bf5 21.Nf5 gf5= (21...Qf5? 22.e4 Qd7 23.ed5+–)) 21.Ne4+= Qe5 22.Nc5 Rad8? (better is 22...Qc7!?+=) 23.Nb7+– Ne3?? (better is 23...Ra8+–) 24.fe3 Qe3 25.Qf2 (25.Qf2 Qf2 26.Kf2+–) 1–0. Fernandez Seco,Julian (2035) – Edwards,Ray B (1930), Benidorm ESP, 2014.

6.Nd2 ed4 7.Bd4 Bg7 8.a3=.

6.Nd2 Bg7 7.Ngf3 0–0 8.Be2 ed4 9.ed4 (9.Nd4 c5 10.Nc2 Nb6+=) 9...Re8 10.0–0 b6 (10...d5 11.Re1=) 11.Re1+= Bb7 12.Qa4 (12.Qc2 d5+=) 12...c5 (12...d5 13.c5 c6 14.b5 cb5 15.Qb5=) 13.Bd3 Re1 (13...d5 14.dc5 bc5 15.Re8 Qe8 16.Re1+=) 14.Re1 d5 15.dc5 (15.a3 a5 16.bc5 bc5=) 15...bc5 16.Qb5 (16.Qa3 cb4 17.Qb4 Qb6+=) 16...Rb8= 17.bc5 (17.a3 a6 18.Qa4 Nb6=) 17...dc4 (better is 17...Ba8!? 18.Bf6 Bf6+=) 18.Qc4+/– Bf3 19.Bf6 Bf6 (19...Qf6 20.Nf3 Rc8 21.Qg4+=) 20.Nf3+/– (20.gf3? Ne5 21.Re5 Be5–+) 20...Rc8 (20...Qa5 21.Rc1+/–) 21.c6 Ne5?? (better is 21...Nb6 22.Qc2 Qc7+/–) 22.Ne5+– (22.Re5?! Be5 23.Ne5 Rc7+–) 22...Qc7 (22...Qe8 23.f4+–) 23.Nd7 Bd8 (23...Qd6 24.Nf6 Qf6+–) 24.Re8 Kg7 25.Qc5 a6 26.Qf8 1–0. marekt – avbpk1, GameColony.com, 2002.

6.Nd2 Bg7 7.Ngf3 a5 8.a3=.

6.Nd2 Bg7 7.Ngf3 ed4 8.Bd4 0–0 9.Be2=.

6.Nd2 Bg7 7.Ngf3 Qe7 8.Be2 0–0 9.0–0 e4 10.Ng5 h6 (10...Nb8 11.f3 ef3 12.Rf3= (worse is 12.Ngf3 Qe3 13.Kh1 Ng4–/+)) 11.Nh3 c5 (11...d5 12.b5=) 12.bc5 (12.a3 a5=) 12...dc5 13.Rb1 b6 (13...Rd8 14.Qb3=) 14.Nf4 (14.Qc2 Re8=) 14...Re8 (14...cd4 15.Bd4 Bb7 16.a4=) 15.Qa4 (15.Qb3 Qd6+=) 15...cd4 16.ed4 (16.Bd4 Nc5 17.Qb4 Bf5=) 16...e3 (16...Qd6!? 17.Nh3 Nf8=) 17.Bf3+= Rb8 (17...b5 18.Qb3 (worse is 18.Qb5 Rb8 19.Qa5 ed2 20.Qd2 Nb6–/+; 18.cb5?! Nb6 19.Qa5 ed2 20.Ba8 Na8=) 18...ed2 19.Ba8=) 18.Rbe1 (18.Ba3 Nc5 19.Bc5 bc5 20.Rb8 ed2+/–) 18...ef2+= 19.Kf2 Qd6 20.Re8 Ne8 21.Nd5 Ndf6 (21...b5!? 22.Qa7 bc4=) 22.Qa7+/– Be6 (22...Qh2 23.Ne7 Kh7 24.Nc8 Rc8 25.Qf7= (25.Qb6? Rb8 26.Qb3 Rb3 27.Nb3 Nd6–+)) 23.Kg1 (23.Ne7 Kh7 24.Kg1 Rd8+–) 23...Nd5+/– 24.Bd5 (24.cd5!? Bd7 25.Nc4+–) 24...Bd5+= 25.cd5 Attacking the backward pawn on f7 25...Rc8? (better is 25...Qc7!? 26.Qc7 Nc7+=) 26.Qf7+– Kh8 (26...Kh7 27.Nf3+–) 27.Re1 Nf6 28.Re7 (28.Nf3 Qb4 29.Bc1 Kh7+–) 28...Rg8 29.Re6 1–0. marekt – nobarakskaoneb, gameknot.com, 2001.

6.Be2 Bg7 =.

6.de5 Ne5 7.Nf3 White gets the initiative 7...Bg4 8.Nbd2 Bg7 9.Be2 Nf3 (9...a5 10.Ne5 (10.Be5?! de5 11.b5 Qe7=) 10...Be2 11.Qa4 Kf8 12.Ke2 de5 13.Be5+=) 10.Bf3+= Bf3 11.Qf3 0–0 12.Qb7 Rb8 13.Qa7 Rb4 (13...Ra8 14.Qb7+/–) 14.Bc3+/– Rb8 15.a4 Nd7 (15...Ra8 16.Qb7+/–) 16.Bg7 Kg7 17.Qd4 Qf6 (17...f6 18.0–0+–) 18.0–0 (18.Qf6!? Kf6 19.Ra2+–) 18...Rb2+/– 19.Nf3 (19.Rfd1 Nc5+/–) 19...Ra8 20.a5 Nc5 21.Qd5 Ra6 22.Ra3 (22.Rfd1 Nb3 23.Ra3 c5+/–) ˝–˝. Gapp,Wolfgang (1815) – Lassahn,Holger (1925), AUT–chT2W, 1994.

6.Nf3 ed4 7.ed4 d5 8.c5 Bg7 9.Be2 0–0 10.0–0 c6 11.a4 Ne4 12.Nbd2 Re8 13.Nb3 a5 14.Nfd2 (14.Na5 Re6 15.Nb3+=) 14...ab4+= 15.f3? (better is 15.Ne4 de4 16.Qd2+=) 15...Nec5!–+ 16.a5 (16.dc5 Bb2) 16...b6 (better is 16...Nb3 17.Nb3 c5–+) 17.dc5 Bb2 18.Rb1 Bc3 19.cb6 c5 20.Bb5 c4 21.Nc4 (21.b7 Bb7 22.Bd7 Qd7 (22...cb3?! 23.Be8 Qe8 24.Nb3=) 23.Nc4 Qe6–+) 21...dc4 22.Qd5?? (better is 22.Bc4 Bb7 23.Bd5–+) 22...Nb6 (22...cb3?! 23.Qa8 Nb6 24.Qa7–+) 23.Qc5 (23.Qd8 Rd8 24.ab6 cb3 25.Rb3–+) 23...Re5 (23...Re5 24.Qb6 Qb6 25.ab6 Rb5–+) 0–1. Labahn,Wolfgang – Schoenau,W, Lippstadt GER, 1990.

6.Nf3 e4 7.Nfd2 d5 8.c5 c6 9.Be2+= Bh6 10.0–0 0–0 11.Nc3 Ne8 12.a4 f5 13.Qb3 Qh4 14.b5 Ndf6 15.Na2 Ng7 16.bc6 bc6= 17.Nb4 Bd7 18.a5 Ng4 19.h3 Nf6 20.Qc3 g5 21.Qc2 f4=+ 22.ef4 gf4 23.Ba6? f3–+ (23...f3 24.Rfb1 fg2–+) 0–1. Registration (2190) – Genphilon (2095), ICC, 2003.

6.Nf3 e4 7.Nfd2 Bg7 8.Nc3+/– Qe7 9.Qc2 0–0 10.Nde4 a5 11.a3 c5 12.bc5 dc5 13.0–0–0 b6 14.dc5 Nc5 15.Nf6+– Qf6 16.Nd5 Qb2 17.Qb2 Bb2 18.Kb2 Rb8 19.Be2+– Be6 20.g4 Kg7 21.h4 h6 22.h5 g5 23.f4 f6 24.Bf3 b5+= 25.cb5 Rb5 26.Kc2 Rc8= 27.Kd2 Rb2 28.Ke1 Rb3 29.Kf2 Ra3 30.Rd4 Nd3 31.Kg3= Bd5 32.Rd5 gf4 33.ef4 Rc7 34.g5 hg5 35.h6+/– Kf7 36.fg5 Ne5 37.Rf1?? Nf3 38.Rf3+= Rf3 39.Kf3 fg5 40.Rg5 Kf6 41.Ra5 Rh7 42.Ra6 Kg5 43.Ke4 Rh6 ˝–˝. Machete (2295) – troitsky (1985), ICC, 2003.

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

6.Nf3 Qe7

7.b5 e4 8.Nfd2+= Bg7 9.Nc3 0–0 (9...c5 10.bc6 bc6 11.Qc2+=) 10.a4 (10.g4 h6+=) 10...Re8 (10...c5 11.Be2=) 11.Qc2 The pressure on e4 grows (11.g4 h6 12.h4 c5 13.bc6 bc6+/–) 11...Nf8 (11...c5 12.bc6 bc6 13.Be2=) 12.a5 (12.Be2 c5+=) 12...Bf5 (12...c5 13.dc5 dc5 14.Be2+=) 13.Nb3 (13.h3 Bc8+=) 13...h5 (13...a6 14.Be2=) 14.c5 (14.a6 ba6 15.Ra6 Bc8+/–) 14...Ne6 (14...d5 15.a6 ba6 16.Ra6+/–) 15.Na4 (15.a6 b6+=) 15...Nd5= 16.Bc3 (better is 16.c6!? bc6 17.Qc6=) 16...dc5+= (16...Nc3?! 17.Qc3 h4 18.c6=) 17.Nac5? (17.Bc4 Nc3 18.Qc3 cd4 19.ed4–+) 17...Nc5–+ (17...Nc3 18.Qc3 Rac8 19.Bc4+=) 18.Nc5 Qc5!! 19.dc5 Bc3 20.Kd1 Ba1 21.Bc4 Rad8 22.Bd5 (22.Kc1 Be5–+) 22...Rd5 23.Ke2 Bf6 24.Rc1 (24.Rb1 Red8 25.b6 ab6 26.cb6 c6–+) 24...Red8 25.h3 (25.Kf1–+) 25...Rd2! 26.Qd2 Rd2 27.Kd2 Kf8 28.b6 (28.c6 b6–+) 28...cb6 29.cb6 ab6 30.ab6 Bd8 31.Rb1 Ke7 (31...Be6 32.Rb4–+) 32.Kc3 (32.Rb4 Be6 33.Re4 Bb6–+) 32...Bd7 33.Kc4 (33.Rb4 f5–+) 33...Kd6 34.Rd1 Kc6 35.Rd4 (35.Kd4 Bf5–+ (worse is 35...Kb6 36.Ke4 Bc6 37.Ke5 Bc7 38.Kf6–+)) 35...Be6 36.Kb4 Bd5 37.Rd1 Bb6 38.Rc1 Kd6 39.Kb5 (39.g3 Bd8–+) 39...Bc7 40.Rd1 (40.Rc2 g5–+) 40...Ke5 0–1. Zahn,R – Arounopoulos, VEM, 2000.

7.b5 Bg7 8.Be2=.

7.Nc3 c6+=.

7.Nc3 e4 8.Nd2 c6 +=.

7.Be2 e4 8.Nfd2 =.

7.Be2 Bg7 8.0–0 0–0 9.Nc3 Re8 (9...c5 10.a3=) 10.a4 (10.Nb5 Qd8+=) 10...e4 (10...ed4 11.Qd4 c5 12.bc5 dc5 13.Qh4=) 11.Nd2+= h5 (11...a5 12.b5+=) 12.a5 Nf8 (12...h4 13.h3+=) 13.Qc2+/– a6 14.Rfc1 c6 15.Na4 Bf5 16.Nb6 Rad8 17.d5 cd5 (17...N8d7 18.dc6 bc6 19.Nb3+/–) 18.cd5 White creates threats along the open c–file 18...N8d7 19.Ndc4 h4 20.h3 g5 21.Qd1 Kh7 22.Nd7 White launches an attack 22...Rd7 23.Nb6 Rc7 24.Rc7 Qc7 25.Rc1 Qe7 26.Rc4 Rg8 (26...Qd8 27.Bd4+/–) 27.Qc2+– Ne8 (27...Rb8+–) 28.Bf3! Bb2 (28...ef3 A pinning theme 29.Qf5) 29.Be4 Kh6 (29...Bg6 30.Bg6 Rg6 31.Qb2+–) 30.Bf5 Ba1 31.Re4 (31.Nd7 Kg7+–) 31...Qf6 (31...Be5 32.Nd7+–) 32.Nd7 (32.Bc8 g4 33.hg4 Qg6+–) 32...Qg7?! (32...Qb2 33.Rc4 Qc2 34.Rc2 Ng7+–) 33.Re7 Bc3 (33...Qc3 34.Qb1 Ng7+–) 34.Be6! Bb4 (34...fe6 Exploits the pin 35.Rg7 A double attack) 35.Bf7 1–0. Rodriguez,A – Lida, corr ARG–99–1081, 1987.

7.Be2 Bg7 8.Nc3 0–0 9.0–0 e4 10.Nd2 Re8 11.b5 (11.Qa4 Nb6 12.Qa5 Bf5+=) 11...Nf8 (11...c5 12.dc5 dc5 13.Qc2=) 12.a4 h5 (12...N8d7 13.f3 ef3 14.Rf3+=) 13.Ba3 (13.a5 Qe6+/–) 13...Bf5 14.c5 dc5 (14...Ne6 15.Nb3+=) 15.Bc5 Qd8 16.a5 N6d7 (16...N8d7 17.Bb4+/–) 17.Nb3 (17.Bf8 Bf8 18.Qc2 Qh4+=) 17...Qg5+= 18.Re1 Ne6 19.Bb4 Nf6 20.f4 ef3 21.Bf3 Ng4 (21...Rab8 22.e4 Bg4 23.e5+/–) 22.Qd2 (22.e4 c5 23.bc6 Nf4 24.cb7 Nh3 25.gh3 Ne3 26.Kh1 Nd1 27.Rad1 Rad8 28.ef5 Re1 29.Re1 Qf5+–) 22...Rad8 (22...Rab8 23.h3 Nf6 24.a6 ba6 25.Ra6+/–) 23.Bg4 (better is 23.Bb7!? Be5 24.h3+–) 23...Bg4 (23...Qg4 24.a6 Ng5 25.Rf1+=) 24.Qf2 (24.a6 b6+=) 24...h4 (24...a6 25.ba6 ba6 26.Rab1=) 25.Rf1 Attacks the backward pawn on f7 (25.a6 b6+=) 25...f5= 26.d5 (26.a6 h3+=) 26...Nf8 (26...Bc3 27.Bc3 Rd5 28.Nd2–/+) 27.Rfe1 (27.Rae1 Bc3 28.Bc3 Rd5+=) 27...h3 (27...Bc3 28.Bc3 Rd5 29.a6 ba6 30.Ra6 Rb5 31.Bf6=) 28.b6 (28.Nc5!? hg2 29.e4 fe4 30.Re4 Re4 31.N5e4+=) 28...ab6 Black launches an attack 29.ab6 cb6 The passed pawn on d5 will become decisive later 30.Nd4 Re3! 31.Ncb5 White intends d6 (31.Qe3 Qe3 A double attack) 31...f4–+ 32.d6 Qd5 (32...Bd7 33.Rab1 Bb5 34.Nb5 Qb5 35.Re3 fe3 36.Qe3 Rd6 37.Qh3–+) 33.Re3 fe3 34.Qa2 Qa2 35.Ra2 Ne6 36.Ne6 (better is 36.Nc2 e2 37.Ne3–/+) 36...Be6 37.Ra3 Bc4 38.Nc7 (38.Re3 Bb5 39.Rh3 Bd4 40.Kh1 Bc5–+) 38...e2 39.gh3 (39.Rh3 Bd4 40.Kh1–+) 39...Bd4 40.Kg2 Bc5 41.Ra8 Ra8 42.Na8 Bb4 43.d7 Be7 0–1. Farleigh,Richard – Al Modiahki,Mohamad (2370), Moscow ol (Men), 1994.

5.d4 e4

6.Nc3 Bg7 =.

6.Nd2 Bg7 7.Be2 c6 (7...0–0 8.a3=) 8.d5 (8.Qc2 Bf5=) 8...0–0 9.Bf6 (9.Rb1 Qe7=) 9...Qf6+= 10.Ne4?? (better is 10.Rb1 Re8 11.dc6 Nc6 12.b5+=) 10...Qa1–+ 11.Qa1 Ba1 12.Nf3 cd5 (12...Rd8 13.Kd2 Bg7 14.a3–+) 13.Nd6 (13.cd5 Rd8–+) 13...Bc3 14.Kf1 Bb4 15.Nc8 (15.Nb5 a6 16.Nc7–+) 15...Rc8 16.g3 (16.Nd4 dc4 17.Bf3 Nc6 18.Bc6 bc6–+) 16...dc4 17.Kg2 b5 18.Nd4 a6 19.Bf3 (19.Bg4 Rc5–+) 19...Ra7 20.Nc2 (20.Rc1 Bc5–+) 20...Bd2 (20...Bc3 21.Rd1–+) 21.Rd1 c3 (21...Rd7 22.h3–+) 22.a3 (22.h3 Rd7–+) 22...Nd7 23.Rb1 (23.h3 Ne5–+) 23...Ne5 24.Be2 (24.Rb4 Nd3 25.Rb1 Rd7–+) 24...Nc4 (24...f5 25.Rb4–+) 25.Rb3 (25.Rb4 Na3 26.Na3 c2 27.Nc2 Rc2–+) 25...Nb2 (25...Rd7 26.Rb4–+) 26.Rb4 Rd7 27.Bg4 (27.Rd4 Rcd8–+) 27...f5 28.Be2 (28.Bf3 Rcd8–+) 28...Bc1 29.Rd4 Rd4 30.ed4 Nc4 31.d5 (31.Bc4 Rc4 32.Kf3 Ra4–+) 31...Na3 32.Na3 (32.Bd1 Rc5 33.Nd4 c2 34.Bc2 Nc2–+) 32...Ba3 (32...Ba3 33.Bd3 c2 34.Bc2 Rc2–+) 0–1. Rodriguez,F – Sancristobal,J, URU chT, 1983.

6.Nd2 Bg7 7.Ne2 0–0 8.Ng3 Re8 9.Qc2 Increases the pressure on e4 9...Bf5 (9...Qe7 10.Be2=) 10.b5 d5 11.Nf5 gf5 12.c5 c6 13.a4 a6 14.b6 Ng4 15.h3 Qh4 16.g3 (worse is 16.hg4 Qh1 17.gf5 Qh5+=) 16...Qh6 17.0–0–0?? (better is 17.Be2+=) 17...Nf2–+ 18.Bg2 (18.Rh2 Nd1 19.Kd1 Qe3–+) 18...Qe3 19.Rde1 Nd3 20.Kd1 Ne1 (20...Qg3 21.Re2 Nf2 22.Kc1 Nh1 23.Bh1–+) 21.Re1 Qg3 22.Bf1 Nd7 23.Nb3 Nf6 24.Bc1 f4 Black intends e3 25.Na5 e3 26.Nb7 (26.Qg2 Ne4 27.Qg3 Ng3–+) 26...Ne4 27.Nd6 (27.Bb2 f3 28.Qc1 Qg6 29.Re3 Nf2 30.Ke1 Qg3 31.Re8 Re8 32.Kd2 Bh6 33.Kc3 Bc1 34.Bc1 Ne4 35.Kb3 f2 36.Be3 Qe3 37.Ka2 Nc3 38.Kb3 Nd1 39.Bd3 Qd3 40.Ka2 Qe2 41.Kb3 Qb2) 27...Qf3 0–1. Evstratenko,Vasily (1745) – Gayvonenko,Yury (1945), Novosibirsk March op, 2008.

6.d5 Nbd7 7.Ne2+=.

6.d5 Bf5 7.Qb3 Bg7 8.Ne2 0–0 9.Nd4 Bc8 10.Nd2 Re8 11.0–0–0?? (better is 11.Be2=) 11...Ng4–+ 12.Re1 (12.f4 ef3! 13.N2f3 a5 14.ba5 Nf2–+) 12...Nf2 13.Rg1 Qg5 (13...a5!? 14.b5–+) 14.Be2 (14.Nb5 Bb2 15.Kb2 Na6–+) 14...Bg4 (14...a5 15.Nb5 Bb2 16.Qb2–+) 15.Bf1? (better is 15.Rgf1!? Qh4 16.Kb1–+) 15...Nd7 16.h3 Bh3! 17.gh3 (17.Nb5 Bb2 18.Kb2–+) 17...Qg1 18.Ne2 (18.Kb1 Nd3! 19.Re2 a5–+) 18...Bb2 (better is 18...Nd3!? 19.Qd3 Qf2 20.Qb1 Qe1 21.Kc2–+) 19.Kb2 Qh2 (19...Qh2 20.Ka1 a5–+) 0–1. Derbin,Alexey (1945) – Anokhin,Viktor T (2040), 2012.

6.d5 Bg7 7.Ne2 0–0 8.Nd2 (8.Nbc3 a5 9.a3 Bd7=) 8...Re8 (8...Nd5 9.cd5 Bb2 10.Rb1+=) 9.Qc2 (9.Nd4 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 c5 13.dc6 bc6=) 9...c6 (9...Nbd7 10.Nd4=) 10.Nc3 e4 draws heavy fire (10.Rb1 Nbd7=) 10...Bf5 11.h3 h5 (11...Na6 12.a3 c5 13.b5+/–) 12.Be2 cd5 (12...Qb6 13.a3+=) 13.Nd5 Nc6 (13...Nd5 14.cd5 Bb2 15.Qb2+=) 14.Nf6 (14.Bf6 Bf6 15.Rd1 Bg7+=) 14...Bf6 15.Bf6 Qf6 16.Rb1 h4 17.g4 (17.b5 Nb8+=) 17...hg3= 18.fg3 Qe5 19.Kf2 (19.Nf1 d5=) 19...a5 Black gets strong initiative 20.b5 (20.ba5 Nd4 21.Qb2 Ne2 22.Qe5 Re5 23.Ke2 Rea5=) 20...Nb4 21.Qb3 (21.Qb2=) 21...Rad8 (21...Nd3 22.Bd3 ed3 23.Rhe1+=) 22.g4= d5 (better is 22...Nd3 23.Kg2 Nc5=) 23.gf5+– Qf5 24.Ke1 Nd3 25.Bd3 ed3 26.cd5?? (better is 26.c5 Re3 27.Kd1+=) 26...Re3–+ 27.Kd1 Rc8 (better is 27...Qh5 28.Kc1 Rc8 29.Kb2 Qe5 30.Ka3 Rc3–+) 28.Nc4 (28.Qa4 Qd5 29.Rf1–+) 28...Qh5 (28...Qf3 29.Kc1 Re2 30.Rb2 Qh1 31.Qd1 Rc4 32.Rc2 Rec2 33.Kb1 Qd1) 29.Kc1–+ Qd5 30.Kd2 (30.Kb2 Re2 31.Ka1 Qc4 32.Qc4 Rc4 33.Rhd1–+) 30...Re2 31.Kc3 Rc4! 32.Qc4 Theme: Deflection from c2 32...Rc2 A double attack 0–1. Gapp,Wolfgang (1855) – Tanner,Walter (1830), AUT–chT3, 1997.

6.d5 Bg7 7.f3 (7.Nc3 0–0=) 7...ef3 8.Qf3 (8.Nf3 Qe7=) 8...0–0 9.Nd2 (9.Nc3 Re8+=) 9...Nbd7 (9...Re8 10.Ne2–/+) 10.e4 (10.Be2 Re8+=) 10...Qe7 (10...Ne4 11.Bg7 Nd2 12.Kd2 Kg7 13.Qc3 Ne5 14.Nf3–/+) 11.Qc3 (11.Rb1 Re8–/+) 11...a5 12.g4? (better is 12.a3–/+) 12...ab4–+ 13.Qb4 (13.Qf3–+) 13...Ne4 14.Bg7 Kg7 15.Qb2 Kg8 16.Ne4 (16.Ngf3 Ng3 17.Kf2 Nh1 18.Kg2–+) 16...Qe4 17.Kf2 Qh1 18.Nf3 Ne5! 19.Ne5 A deflection (19.Qe5 de5) 19...Qh2 A double attack. . . . . . . (19...Qh2 20.Bg2 de5–+) 0–1. Meier,Bernd – Seeman,Tarvo (2445), Internet Section, 2003.

6.Nh3 Bg7 7.Nf4 0–0 8.f3 Re8 9.Qd2 ef3 10.gf3 d5 11.c5 Bh6 12.Ng2 Bh3 13.Kf2 (better is 13.Kd1–+) 13...Bg2 14.Bg2 Be3 15.Qe3 Re3 16.Ke3 Qe8 (16...Nc6 17.Bc3 Nh5 18.Rd1–+) 17.Kf2 Nc6 18.Re1 Qd7 19.b5?! (19.Bc3–+) 19...Nb4 20.Na3 (20.Bf1 Nc2 21.Nc3–+) 20...Nd3 21.Kg3 (21.Kg1 Nb2 22.Rab1–+) 21...Nh5 22.Kh4 Qd8 23.Kg4 (23.Re7 Qe7 24.Kh3 Nf2) 23...f5 (23...Nf2) 24.Kh3 Ndf4 0–1. Hall,PJ – Wood,DA, Dunedin New Year op, 1999.

5.d4 Bg7

6.de5 Nfd7 7.Nf3 Nc6 8.a3 0–0 9.Be2 a5 10.b5 Nce5 11.Ne5 Ne5 12.Nc3 (12.0–0!?=) 12...Be6+= 13.Qb3 Qg5 14.g3 Qf5 15.e4 Nf3 16.Kd1 Qf6 17.Nd5 Qb2 18.Qb2 Bb2 19.Ra2 Bd5 20.cd5 Ng5 (20...f5 21.e5 Be5 22.Bf3–/+) 21.Rb2+= Ne4 22.Bf3 Nc5 23.Kd2 Rfe8 24.b6 Na4 25.Rb5 (better is 25.Rc2!? cb6 26.Rb1+=) 25...Nb6–+ 26.Kd3 Re7 27.Rc1 Nd7 (27...a4 28.Bd1–+) 28.Kd4 (28.Rb7!? Nc5 29.Rc5 dc5 30.Kc4–/+) 28...Nc5–+ 29.Rc3 Rae8 30.Rcc5 (30.Re3 a4–+) 30...dc5 31.Kc5 b6 32.Kc6 Rd8 33.Kb7 Rd6 34.Ka6 Kf8 35.Rb2 Ke8 36.a4 Kd8 37.Kb7 (37.h3 f5–+) 37...c5 (37...b5 38.ab5 c5 39.Ka8 Ke8 40.Bg4 Rd8 41.Bc8 Rc8) 38.Ka6 Kc7 39.Bg2 Re1 40.f4 f5 41.h3 (41.Kb5 Rd1–+) 41...h5 42.Rb3 Rd8 (42...Rg1!? 43.Rb2–+) 43.Ka7 (43.Rb6 Rd6 44.Rc6 Rc6 45.dc6 c4–+) 43...Ree8 44.Ka6 Ra8 45.Kb5 Kd6 46.Bf3 Re7 (46...Re1 47.h4–+) 47.Rc3 (47.Kc4 Rb8–+) 47...Rae8 48.Rc2 (48.Kc4 Re1 49.Rb3 Rc1 50.Kb5 c4–+) 48...Re3 49.Rf2 Rb3 50.Ka6 Ree3 51.Bd1 Rb4 52.Bf3 (52.Rf3 Rf3 53.Bf3 h4 54.gh4 Ra4–+) 52...h4 53.gh4 Rf4 (53...Rf4 54.h5 gh5 55.Bh5 Rf2 56.Kb6 Rh3–+) 0–1. Rogall,J – Hamacher,Axel, Dortmund op, 1988.

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

5.Be2 Bg7

6.b5 a6 7.a4 ab5 (7...0–0 8.d4+=) 8.ab5 Ra1 9.Ba1 0–0 10.Nf3 (10.d4 ed4 11.Bd4 c5 12.bc6 Nc6=) 10...Re8 (10...e4 11.Nd4=) 11.0–0 Nbd7 12.d3 Nf8 (12...Qe7 13.d4=) 13.Nbd2 (13.Nc3 Qe7=) 13...Ne6 (13...Qe7 14.Bc3=) 14.Qc2 h5 (14...c6 15.Rb1=) 15.d4 White plans c5 (15.Bc3 g5+=) 15...e4 16.Ng5?? (better is 16.Ne1+=) 16...Ng5–+ 17.c5 (17.Bc3 h4–+) 17...d5 18.Bb2 (18.h3 Ne6–+) 18...Bg4 19.Nb3 Be2 20.Qe2 Qd7 21.Ra1 Ng4 (21...Qg4 22.Qg4 Ng4 23.Ra7–+) 22.h3 Nh6 23.Ra7 Rb8 24.Na5 Qc8 25.c6 b6 26.Nb3 (26.Nb7 Qe8–+) 26...Ra8 27.Rb7 (27.Ra6–+) 27...Bf8 (27...Ne6 28.f3 Nd8 29.fe4 de4 30.Qf2–+) 28.f4 (28.Qc2 Nf5 29.Bc3 Nd6–+) 28...ef3! 29.gf3 (29.Qc2 Ne6 30.Qf2 Nd8 31.Qf3 Nb7 32.cb7 Qb7–+) 29...Qh3 30.Qg2 Nf3 31.Kf2 (31.Kf1 Nh2 32.Kg1 Qg2 33.Kg2–+) 31...Ng4 32.Kf1 Ne3 0–1. Guest124612 – Fredek (2065), Freundschaftspartie, 5m + 0s, 2006.

6.Nc3 0–0 7.d3 a5 8.b5 c6=.

6.Nc3 0–0 7.d3 Re8=.

6.Nc3 0–0 7.d4 e4 (7...ed4 8.ed4 d5 9.cd5 Nd5 10.Nd5 Qd5 11.Nf3+=) 8.Qc2 Re8 9.Rd1 c6 10.d5 Na6 11.a3 Qe7 (11...c5 12.b5 Nc7 13.a4=) 12.dc6+= bc6 13.b5 (13.Rd2 Rd8=) 13...cb5 14.Nb5 Rd8 15.Nd4 Bb7 (15...Bd7 16.Qd2=) 16.Nh3= Nc5 17.Nf4 Rac8 18.Nb3 (18.0–0 d5=) 18...Nd3 (18...Rb8 19.Nc5 dc5 20.0–0=) 19.Bd3 ed3 20.Qd3 Nh5 21.Nh5 (21.Bg7 Nf4 22.Qd4 A) worse is 22...Bg2 23.Bf6 Qe4 24.Qe4 Be4 25.Bd8 (worse is 25.ef4 Bh1 26.Bd8 Rd8=) 25...Bh1 26.Bf6+= (worse is 26.ef4 Rd8 27.Kd2 Be4=); B) 22...Ng2 23.Ke2 Nf4 24.Qf4 Kg7–/+ (24...Bh1 25.Bf6 Qe4 26.Rh1 Qf4 27.ef4+/–)) 21...Bb2 22.Nf4 d5 23.cd5 (23.c5 Qf6+=) 23...Qa3 (23...Bc3 24.Nd2 g5 25.Ne2 Rd5 26.Qc3 Rc3 27.Nc3–+) 24.Nd2 Bd5 25.Qa3 Ba3 26.0–0 Bc6 27.Nf3 Rd1 (27...Bd6 28.Nd4–/+) 28.Rd1 Bf3 29.gf3 Rc1 30.Rc1 Bc1 31.Nd5 a5 32.Nb6 Kg7 33.Kf1 Kf6 34.Ke2 Ba3 35.Kd3 Bd6 36.Nc4 (36.f4 Kf5+=) 36...Bc7 (better is 36...Bh2 37.Na5 g5–/+) 37.Na5?? (better is 37.f4=) 37...Ba5–+ 38.Ke2 Kg5 (38...Bc7 39.h3–+) 39.Kf1 Kh4 40.Kg2 f5 41.f4 (41.e4 Kg5–+) 41...Bb6 42.h3 Bc5 43.Kh2 Bb4 44.Kg2 Be1 45.f3 Bd2 0–1. Woschkat,Karl_Heinz – Vnukov,Denis, IECG, 1999.

6.Nc3 0–0 7.Nh3 a5 8.b5 Nbd7 9.a4 Nc5 10.Qc2 Bf5 11.d3 c6 12.f3 (12.Ng5!?=) 12...Bh3–/+ 13.gh3 d5 (13...Nfd7!?–/+) 14.Ba3 Qb6 0–1. Penteshin,Yury – Isembaev,Bilal, Doroshkevicha Mem, Belorechensk RUS, 2009.

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

6.d4 ed4 7.ed4 d5 8.Nf3 =.

6.d4 Nbd7 7.Nf3 Qe7 (7...a5 8.Qa4=) 8.Nc3 (8.0–0 e4 9.Nfd2 a5+=) 8...c6 (8...ed4 9.Nd5 Nd5 10.cd5+=) 9.d5 (9.0–0 0–0+=) 9...c5 (9...0–0 10.0–0=) 10.b5 (10.a3 0–0+=) 10...0–0= 11.Qb3 (11.e4 Nh5=) 11...Ne8 (11...a6 12.e4=) 12.a4 f5 13.a5 b6 (13...a6 14.0–0+=) 14.a6 (14.0–0 Nef6+=) 14...Ndf6 15.Nd2 (15.0–0 Nc7+=) 15...Bd7 16.h3 Kf7 (16...Nc7 17.0–0+=) 17.0–0–0 (17.Qc2 Kg8+=) 17...Nc7 (17...Kg8 18.Qc2+=) 18.f3 (18.h4 h5+=) 18...h5 (18...Kg8 19.Bd3=) 19.Rdg1 (19.g3 Kg8+=) 19...Rh8 (19...h4 20.e4+=) 20.h4 (20.g3 Rae8+=) 20...Raf8 (20...Bh6 21.Nf1=) 21.Nd1 (21.Bd3 Kg8+=) 21...Ke8 22.Nf2 (22.f4 Kd8=) 22...Kd8= 23.Kb1 (23.Bd3 Kc8=) 23...Nce8 (23...Kc8 24.g3=) 24.e4 (24.Qd3 Kc8=) 24...Bh6 25.Bc1 (25.Rd1 Kc8=) 25...fe4 (25...Kc8 26.g3=) 26.Nde4 Ne4 27.Ne4 Bf5 (27...Bc1 28.Rc1 Kc8 29.Rce1=) 28.Bd3 (28.Bh6 Rh6 29.Qe3 Be4 30.fe4 Rhh8+=) 28...Bc1 29.Kc1 Ng7 30.g3 (30.Qc2 Be4 31.Be4 Nf5=) 30...Be4 31.Be4 Qf6 (31...Nf5 32.Qc3=) 32.Qd3 (32.Qe3 Nf5 33.Bf5 Qf5=) 32...Nf5 33.Rh2 (33.Kb1 Kc7=) 33...Ng3 34.Rhg2 (34.Rg3 Decoy theme: g3 34...Qf4 Theme: Double Attack) 34...Ne4 35.fe4 (35.Qe4 Qf3 36.Qf3 Rf3 37.Rg6 Rc3 38.Kd2 Rc4=) 35...Rfg8 (35...Qh4 36.Rg6 Qf4 37.Kd1+=) 36.Qe3 (36.Qg3 Kc7=) 36...Rh7 (36...Qh4 37.Rg6 Rg6 38.Rg6–/+) 37.Rg5 (37.Qg5 Rf7=) 37...Rhg7 (37...Kc7 38.Kb1+=) 38.Kd2 (38.Qg3 Qf4 39.Qf4 ef4+=) 38...Qf7 39.Ke2 (39.Kc1 Kc7+=) 39...Rf8 (39...Kc7 40.Qg3+=) 40.R5g3 (40.Qg3 Kc8+=) 40...Ke7 (40...Kc7 41.Rf3 Qg8 42.Kd2+=) 41.Rf3 Qf3 42.Qf3 Rf3 43.Kf3 Kf6 44.Rg5 Rf7 45.Rg1 Kg7 46.Ke3 Rf4 47.Rh1 Rg4 (47...Kh6 48.Rh3–/+) 48.Kf3 (48.Kd3 g5 49.hg5 h4–/+) 48...Kf7 (48...g5 49.hg5 Kg6 50.Ke3–/+) 49.Ke3 Kg7 (49...Rf4 50.Rh2–/+) 50.Kf3 g5 51.hg5 Rg5 (51...Kg6 52.Ke3–/+) 52.Rh4 Kg6 53.Rh1 (53.Rh3 Rg4 54.Ke3 h4–/+) 53...Kh6 (53...Rg4 54.Rh2–+) 54.Kf2 (54.Rh3!?–/+) 54...Rg4–+ 55.Kf3 (55.Re1 Kg5 56.Re2 Kf4–+) 55...Kg5 Black plans h4 56.Re1 (56.Ke3 h4 57.Rf1 Rg3 58.Kd2 h3–+) 56...h4 57.Kf2 (57.Rh1 Rg3 58.Ke2 h3–+) 57...h3 (57...Kf4 58.Rb1–+) 58.Kf3 (58.Rh1 Rg2 (58...Re4?! 59.Rh3 Rc4 60.Rh7–/+) 59.Kf3 Kh4–+) 58...h2 (better is 58...Kh4 59.Rc1 h2–+) 59.Rh1 Rh4 60.Ke3?? (better is 60.Kg3 Re4 61.Rh2 Rc4 62.Rh7–+) 60...Kg4 61.Kf2 Kf4 (61...Kf4 62.Kg2 Ke4–+) 0–1. Gutsko,Anastasiya – Kiss,Emese, EU–ch U12 Girls Rimavska Sobota, 1996.

6.Bf3 Nc6 (6...0–0 7.Nc3=) 7.Qa4 0–0 8.Bc6 bc6 9.Qc6 Bd7 10.Qa6 Qc8 (10...Qb8 11.a3=) 11.Qc8+= Rac8 12.Nc3 (12.a3 Be6 13.d3 Rfe8+=) 12...c5 (12...Rb8 13.b5=) 13.bc5+= Rc5 14.Ba3 (14.d3 Rb8 15.Ba3 Rc6+=) 14...Rc4 15.Bd6 Re8 Black prepares e4 16.Nf3 Ng4 (16...Ne4 17.Ne4 Re4 18.Rc1=) 17.h3 (17.Rb1 e4 18.Nd4 Bc6+=) 17...e4 18.Ng5? (better is 18.Nd4 Ne5 19.Be5 (worse is 19.Ne4 f5–/+) 19...Be5 20.Nce2=) 18...Rc3–+ 19.dc3 Bc3 20.Kf1 Ne3! 21.fe3 (21.Ke2 Nf5 22.Rac1 Bf6–+) 21...Ba1 22.h4 f6 (22...Bf6 23.a3–+) 23.Nh3 (23.Kf2 fg5 24.Ra1 gh4–+) 23...f5 (23...Rc8!? 24.Kg1–+) 24.Kf2 Bf6 25.Nf4 White plans h5 25...a5 (25...Be6 26.a3–+) 26.Nd5 Bg7 27.h5 (27.Bf4 Kf7–+) 27...g5 (27...Be6!? 28.Ne7 Kf7–+) 28.h6 Bb2 (better is 28...Bh8!? 29.Be7 Kf7 30.Bg5 Rb8–/+) 29.Rb1= Bh8 (better is 29...Re6!? 30.Bg3 Ba3=) 30.Rb7+= Rd8 (30...Ba4!?+=) 31.Ne7+– Kf7 32.Nc6 Ke6? (better is 32...Ra8 33.Rd7 Ke6=) 33.Nd8+– (33.Nd8 Kd6 34.Nf7 Kc6 35.Ra7+–) 1–0. Fischer,Diana – Bauer,Joerg, corr, 1983.

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

6.Nf3 Nbd7 7.d4 ed4 (7...a5 8.Qa4=) 8.ed4 (8.Nd4 0–0=) 8...0–0 (8...d5 9.c5=) 9.Nc3 (9.0–0 Re8=) 9...Re8 (9...d5 10.c5=) 10.0–0 c6 (10...a5 11.b5=) 11.Qd2 (11.Re1 Nb6=) 11...Nb6 12.Rfe1 Bg4 (12...Be6 13.c5 dc5 14.dc5 Qd2 15.Nd2 Nbd5 16.Nd5 Nd5 17.Bg7 Kg7=) 13.c5 (13.Qf4!?=) 13...dc5 (13...Bf3 14.gf3 dc5 15.bc5–/+) 14.bc5 (14.dc5 Bf3 15.Qd8 Rad8 16.Bf3 Nc4–+) 14...Nbd5 (14...Bf3!? 15.gf3 Nbd5–/+) 15.h3 (15.Rab1 h6=) 15...Bf3 (15...Be6 16.Ne5=) 16.Bf3 Nc3 (16...Qd7 17.Nd5 Nd5 18.Qc2=) 17.Bc3 Nd5 (17...Re1 18.Re1 Nd5 19.Bd5 Qd5 20.Qb2=) 18.Re8+= Qe8 19.Bd5 cd5 20.Re1 Qd7 21.Qg5 f6 (21...Rc8 22.Re7 Qc6 23.Qg4=) 22.Qe3+= Kf7 (22...f5 23.Qe7 Qc8 24.Rb1+/–) 23.Qf4 (23.a3 f5+=) 23...Re8 (23...Kg8 24.a3+=) 24.Re8 Qe8 25.Qc7 (25.a3 f5+=) 25...Qe7 26.Qa5 (26.Qb8 a6+=) 26...a6 27.Qb6 (27.Qb4 f5+=) 27...Qd7 28.Qb3 (28.Bd2 Qc6+=) 28...Qc6 29.Bd2 Qd7 (29...f5 30.Bc3=) 30.Be3 (30.Qg3 Qc6+=) 30...Qc6 31.f4 (31.Qb4 f5+=) 31...Qd7 (31...f5 32.Qb4=) 32.Kf2 (32.f5 Kg8+/–) 32...Qc6 (32...f5 33.a3=) 33.g4 (33.f5 Kg8+=) 33...h6 (33...f5 34.gf5 gf5 35.Ke1=) 34.Kg3 (34.Qb1 Qc7+=) 34...Qd7 (34...f5 35.gf5 gf5 36.Kh2=) 35.h4 White prepares g5 (35.f5!? gf5 36.gf5+=) 35...f5= 36.g5 h5 (36...hg5 37.hg5 Qc6 38.Kg2=) 37.Kf2 (37.Qb6 Qc6 38.Qd8 Qe6+=) 37...Qc6 38.Ke2 (38.a3 Kg8=) 38...Qd7 (38...a5 39.Qb6 a4 40.Qc6 bc6 41.Kd2+–) 39.Kd3 (39.Qb6 Bh8=) 39...Qc6 (better is 39...Kg8=) 40.Kc3?? (40.Qb6!?=) 40...Bf8 (better is 40...Qc5! 41.Kd2 Qc6–+ (41...Bd4?! 42.Qb7 Ke8 43.Qb8 Kd7 44.Qb7 Kd6 45.Qa6 Kc7 46.Bd4 Qd4 47.Ke2=)) 41.Kd3 Be7 42.Bd2 (42.Ke2 Bd8=) 42...Bd8+= 43.Qa3 Qb5 (43...Kg8 44.Ke3+=) 44.Ke3 Qe8 (44...b6 45.Qd3 Qa4 46.a3+=) 45.Kf2= ˝–˝. Holz auf der Heide,Gerhard – Engel,M, Leipzig VfB op 3rd, 1996.

6.Nf3 e4 7.Nd4 c5 8.bc5 dc5 9.Nb3 Nbd7 10.f3 ef3 11.Bf3 Qc7 12.0–0 (better is 12.Nc3!?=) 12...Ng4!–/+ Threatening mate: Qxh2 13.Bg4 Bb2 14.Bd7 Bd7 15.Nc3 Be6 16.Rb1 Bc3 17.dc3 Bc4 18.Re1 0–0 19.Rb2 f5 20.Rd2 Rad8 21.Rd8 Rd8 (worse is 21...Qd8 22.Nc5 Qd1 23.Rd1+=) 22.Qc2 Bd3 23.Rd1?? (better is 23.Qf2–+) 23...Bc2 (23...Bc2 24.Rd8 Qd8–+) 0–1. Brogger,Gunnar – Meier,Franz, 04. VCC–Open, 2001.

5.Nf3 a5

6.a3 A) 6...Be7 A1) 7.Be2 e4 (7...ab4 8.ab4 Ra1 9.Ba1 e4 10.Nd4 d5) 8.Nd4 c5 9.Nc2 ab4 10.ab4 Ra1; A2) 7.Nc3 0–0 (7...ab4 8.ab4 Ra1 9.Ba1 0–0 10.Be2 e4; 7...Bf5 8.Be2 ab4 9.ab4 Ra1 10.Ba1 Na6; 7...Nbd7 8.Be2 Nb6 9.0–0 Be6 10.d3 ab4) 8.b5 Re8 9.Be2 e4 10.Ng5 Bf8; A3) 7.d4 e4 (7...Nbd7 8.ba5 ed4 9.Nd4 Ra5 10.Be2 Ne5) 8.Nfd2 ab4 9.ab4 Ra1 10.Ba1 d5; B) 6...Bg7 B1) 7.Nc3 ab4 (7...0–0 8.d4 ab4 9.ab4 Ra1 10.Ba1 ed4; 7...Bg4 8.Be2 0–0 9.0–0 e4 10.Nd4 ab4; 7...Be6 8.d4 ed4 9.Nd4 0–0 10.Bd3 Na6) 8.ab4 Ra1 9.Ba1 0–0 10.Be2 e4; B2) 7.d4 e4 (7...ed4 8.Nd4 Bg4 9.Be2 Be2 10.Qe2 ab4) 8.Nfd2 ab4 9.ab4 Ra1 10.Ba1 0–0.

6.Qa4 Bd7 7.b5 Bg7 (7...Bg4 8.d4 Bf3 9.gf3 Bg7 10.de5 Nfd7) 8.d4 ed4 9.Bd4 0–0 10.Be2 Bf5.

6.ba5 A) 6...Bg7 A1) 7.Be2 0–0 (7...Nc6 8.d4 Ra5 9.0–0 0–0 10.Nbd2 e4; 7...Ra5 8.0–0 Nc6 9.d4 0–0 10.Nbd2 e4; 7...e4 8.Nd4 Ra5 9.0–0 0–0 10.f3 d5) 8.d4 Nc6 9.de5 Nd7 10.0–0 Nde5; A2) 7.Nc3 0–0 (7...Ra5 8.Be2 0–0 9.0–0 Nc6 10.d4 Bf5; 7...Nc6 8.d4 0–0 9.Be2 Bf5 10.0–0 Re8) 8.Be2 Nc6 9.d4 Bf5 10.0–0 Re8; A3) 7.d3 0–0 (7...Nc6 8.Be2 0–0 9.0–0 Re8 10.Nbd2 Ra5; 7...Ra5 8.Be2 0–0 9.Bc3 Ra8 10.0–0 Nc6) 8.Be2 Nc6 9.0–0 Ra5 10.Bc3 Ra7; A4) 7.d4 e4 (7...0–0 8.de5 Nfd7 9.Be2 Nc6 10.0–0 Nde5; 7...ed4 8.Nd4 0–0 9.Be2 Qe7 10.0–0 Ra5) 8.Nfd2 0–0 9.Be2 Nc6 10.0–0 Re8; B) 6...Nc6 B1) 7.d4 Bg4 (7...e4 8.d5 ef3 9.dc6 Be7 10.Nd2 bc6; 7...ed4 8.ed4 Bg7 9.Bd3 0–0 10.0–0 Nb4) 8.h3 Bf3 9.Qf3 Bg7 10.d5 e4; B2) 7.Nc3 Bg7 (7...Ra5 8.Be2 Bg7 9.d4 0–0 10.0–0 Bf5; 7...Bf5 8.d4 Ra5 9.Qb3 ed4 10.Nd5 Bc8) 8.d4 0–0 9.Be2 Bf5 10.0–0 Re8; B3) 7.Be2 Bg7 (7...Bg4 8.h3 Bf5 9.d4 e4 10.Nfd2 h5) 8.d4 Ra5 9.de5 Ne5 10.Bc3 Nf3; C) 6...Ra5 7.Bc3 (7.Be2 e4 8.Nd4 Rg5 9.g3 Bg7 10.f3 Bh3; 7.d4 e4 8.Nfd2 Bg7 9.Nc3 Qe7 10.Qc2 Bf5; 7.d3 Bg7 8.Be2 0–0 9.0–0 Nc6 10.Bc3 Ra8) 7...Ra8 (7...Ra7 8.Be2 Nc6 9.0–0 Bg7 10.d4 e4) 8.Be2 Bg7 9.d4 Nc6 10.0–0 e4.

6.b5 Nbd7 7.a4 (7.d4 Qe7= (7...e4 8.Nfd2 Qe7 9.Nc3 Nb6 10.h3 h5; 7...Bg7 8.Be2 0–0 9.de5 Ng4 10.0–0 Nde5) 8.Be2 Bg7 9.Nc3 0–0 10.0–0 Re8; 7.Be2 e4 8.Nd4 Bg7 9.f3 ef3 10.Nf3 0–0) 7...Bg7 (7...e4 8.Nd4= (8.Ng5 Nc5 9.d4 ed3 10.Bd3 Bg7) 8...Ne5 9.Be2 c5 10.Nb3 Qe7) 8.Be2 (8.d4 e4 9.Nfd2 Qe7 10.Nc3 0–0) 8...0–0 (8...e4 9.Nd4 Ne5 10.0–0 Qe7) 9.d4 Re8 (9...ed4 10.Bd4 Nc5) 10.Nc3 (10.0–0 ed4) 10...b6 (10...h6 11.0–0=; 10...Qe7=) 11.0–0+= Bb7 Black prepares the advance e4 12.de5 Ne5 13.Ne5 de5 14.f3 (14.Qc2 Qe7+=) 14...e4 15.f4 (15.Ne4 Be4 16.fe4 Ne4 17.Bg7 Kg7=) 15...Nd7 (15...Qe7 16.Qe1=) 16.Qc2+= Nc5 17.Rfd1 Qe7 18.Nd5 Bd5 19.Rd5 (19.cd5 Bb2 20.Qb2 Rad8=) 19...Bb2= 20.Qb2 f6 (20...Rac8 21.Qa3=) 21.g3 (21.f5 Rac8+=) 21...Rad8 22.Qa2 (22.Qc2 Rd6=) 22...Rd5 (22...Nd3 23.Qd2=) 23.cd5 Qd6 24.Rc1 Rd8 25.Bc4 Kg7 26.Bb3 Rd7 27.Qa3 (27.Rd1 h6=) 27...Re7 ˝–˝. Trkn – oscartje, itsyourturn.com, 2000.

6.b5 Bg7 7.d3 0–0 (7...Bg4 8.h3 Be6 9.Be2 0–0 10.Nc3 Nbd7; 7...Nbd7 8.Be2 0–0 9.0–0 Re8 10.Nc3 Nb6; 7...Be6 8.Be2 h6 9.0–0 0–0 10.Nfd2 Nbd7) 8.Be2 a4 9.0–0 Nbd7 10.a3 Re8.

6.b5 Bg7 7.d4= e4 8.Nfd2 Qe7 9.Be2 0–0 10.Nc3 Re8.

6.b5 Bg7 7.Be2 Nbd7 8.Nc3 0–0 9.0–0 Re8 10.Ng5 Nc5 11.d3 Bf5 12.e4 (12.Qc2 c6=) 12...Bc8 13.Bc1 h6 14.Nf3 Nh5 15.Rb1 Nf4 16.Bf4 ef4 17.Nd5 f5 (17...g5 18.b6 cb6 19.Nb6=) 18.ef5 Bf5 19.Nf4 g5 20.Nh5 Qe7 21.Ng7 Qg7 22.Rc1 Re2 23.Qe2 Bd3 24.Qe3 Bf1 ˝–˝. Baumann,Walter (2010) – Balshaw,Anthony (2075), WS/H/195 ICCF, 2009.

5.Nf3 c6

6.Nc3 Qb6 A) 7.b5 cb5 (7...Bg7 8.d4 ed4 9.Qd4 Qd4 10.Nd4 0–0 11.Be2 c5 12.Nb3 a6 13.b6 Nbd7+=) 8.Nb5 a6 9.c5 dc5 10.Qa4 Bd7 11.Be5 Bg7 12.Qf4 Bb5 13.Bb5 ab5+=; B) 7.a3= Bg7 (7...Bg4 8.h3 Bf5 9.g4 Bc8 10.d4 Nbd7 11.c5 dc5 12.Na4 Qc7 13.de5 cb4+/– 1.25) 8.d4 e4 9.Nd2 Bg4 10.Qa4 Bf5 11.c5 Qc7 12.Nc4 dc5 13.bc5 0–0+/–.

6.Nc3 Bg7 7.d4 A) 7...e4 8.Nd2 Qe7+= (8...Bg4 9.Qb3 Qe7 10.h3 Bd7 11.Be2 0–0 12.0–0 Re8 13.Rad1 b6+=) 9.Be2 0–0 10.0–0 Nbd7 11.Qc2 d5 12.b5 a6 13.bc6 bc6+=; B) 7...Qe7 8.Be2 0–0 9.0–0 Bf5 10.a3 Nbd7 11.Nh4 Be6 12.d5 cd5 13.cd5 Nd5+=.

6.Nc3 Bg7 7.Be2 0–0= (7...Qe7 8.d4 0–0 9.0–0 Re8 10.de5 de5 11.Qa4 Bf5 12.Rad1 Nbd7 13.a3 Nb6=) 8.d4 (8.0–0 e4 9.Nd4 c5 10.bc5 dc5 11.Nb3 Na6 12.f3 Re8 13.fe4 Ne4=) 8...ed4 9.Nd4 (9.ed4 d5 10.c5 Bf5 11.0–0 Re8 12.Re1 Nbd7 13.Qb3 Ne4=) 9...c5 10.bc5 dc5 11.Nb3 (11.Nf3 Nc6 12.Qb3 Qb6 13.Rd1 Bf5=) 11...Qe7 (11...Qb6 12.0–0= Rd8 13.Qc1 Na6=) 12.Qc1 (12.Nd5!? Nd5 13.Bg7 Kg7 14.cd5+=) 12...Rd8= 13.0–0 Nc6 (13...Na6=) 14.Nd5 Nd5 15.Bg7 Kg7 (15...Ne3 16.Qe3 Qe3 17.fe3 Kg7 18.Nc5=) 16.cd5 Rd5 17.Bf3 Rg5 18.Qc3 Ne5 (18...Kg8 19.Rfc1=) 19.Bd5 Qf6 20.Rfc1 (20.Qc5 Nd7 21.Qd4 Qd4 22.Nd4 Rd5–+) 20...Nd7 21.Qf6 Nf6 22.Bf3 Nd7 23.Na5 Rb8 24.Rab1 b6 (better is 24...h6=) 25.Nc6 (better is 25.h4 Rf5 26.Nc6=) 25...Ne5–/+ 26.Be4 (26.Nb8 Nf3 27.Kh1 Bb7–/+) 26...Nc6 27.f4 (27.Bc6!? Re5 28.Rc3–/+) 27...Bf5–+ 28.Bc6 Bb1 29.Rb1? (better is 29.fg5 Ba2 30.Ra1–+) 29...Rf5 30.g4 Rf6 31.Bd5 Rd8 32.g5 (32.Bc4 Rfd6–+) 32...Rf4! 33.ef4 Rd5 0–1. Pakleza,Z (2385) – Hebden,M (2545), 20th Open, Cappelle la Grande FRA (3), 2004. (=1.Nf3 Nf6 2.c4 g6 3.b4 d6 4.Bb2 e5 5.e3 c6)

6.Nc3 Bg7 7.e4 0–0 (7...a5 8.b5 0–0 9.Be2 cb5 10.cb5 d5 11.Qc2 Re8 12.Rc1 d4 13.Na4 Nh5=) 8.Be2 d5 9.ed5 e4 10.Ne5 cd5 11.d4 ed3 12.Qd3 Qe7 13.Nd5 Nd5+=.

5.Nf3 Bf5

6.Nc3 Nc6 7.a3 Bg7 8.b5 Nb8 9.Be2 Nbd7 10.d3 Rg8 11.h3 Nc5 12.e4 Be6 13.Ng5 Bd7 14.Nd5?? Nd5–+ 15.Nf7 Kf7 16.cd5 Bb5 17.0–0 Ba4 18.Qe1 Rf8 19.f4 ef4 20.d4 Nb3 21.Rb1 Nd4 22.Bd4 Bd4 23.Kh1 Kg8 24.Qb4? Bc2 25.Rbc1 Be4 26.Qd4 Re8 27.Bf3 Bf3 28.Rf3 Re2 29.Qf4 Qe7 30.Qc4 h5 31.Qc7–/+ Re1 32.Kh2 Qe5 33.Rg3 h4 (34.Qc3 Qg3 35.Qg3 hg3 36.Kg3 Rc1–+) 0–1. Rush,Bradley – Graham,Victor, IECG Cat–D, 1995.

6.Nc3 Bg7 7.d4 Nc6 8.d5 Ne7 9.Bd3 a5 10.b5 0–0 11.e4 Bd7 12.0–0 Nh5 13.g3 (13.c5 Nf4+=) 13...Bg4 14.Be2 Nf6 15.a4 Bh6 16.c5 Bf3 17.Bf3 dc5 18.Qc2 Qd6 19.Rfe1 Nd7 20.Nb1 Nc8 21.Na3 Ncb6 22.Rad1 f5 23.Qb3 fe4 24.Be4 Kh8 25.Bc3 Bg5 26.Re2 Rf7 27.h4 Bh6 28.Bc2 Re7 29.Nc4 Increasing the pressure on the isolated pawn on e5 29...Nc4 30.Qc4 Bg7 31.h5 gh5 32.Qh4 Nf6 33.Rde1 Rae8 34.Ba5 Qd5 35.Bc3 b6 36.Re3 Kg8 37.Bd3 Ng4 38.Qh5 Ne3 39.Bh7 Kf8 40.Re3 Re6 41.Bg6 Rg6 (41...R8e7!?=) 42.Qg6+= Re7 43.Rd3 Qf7 44.Qg4 Qe6 45.Rd8 Kf7 46.Qh5 Qg6 47.Qf3 Qf6 48.Qd1 Qf5 49.a5 ba5 50.Ba5 Kg6 51.Rd5 Bf8 52.Rc5 Rf7 53.Rc6 Bd6 54.Qe2 Kh7 55.b6 cb6 56.Bb6 Be7 57.Be3 Bf6 58.Rc5 Rb7 59.Qc4 Qf3 60.Rc8 Rg7 61.Rc7 ˝–˝. Fournier,Frederic (2320) – Mephisto (2190), echecsemail.com (Team Cup), 2007.

6.d4 d5 7.a3 e4 =.

5.Nf3 Bg4

6.Nc3 Bg7 7.h3 Bf3 8.Qf3 c6 9.e4 0–0 10.Bd3 a6 11.0–0 b5 12.cb5 ab5 13.a4 Re8? (better is 13...ba4!? 14.Na4 Bh6+=) 14.ab5+– Ra1 15.Ra1 cb5 16.Bb5 Re7 17.Qd3 Qc7 18.Bc4 Qb7 19.b5 Rd7 20.Ba3 Ne8 21.g3 Rd8 22.Nd5 Nd7 23.Ne7 Kh8 24.Bf7 Ndf6 (24...Nb8 25.Nc6! Nc6 26.Bd5+–) 25.Nc6 Rb8 (25...Ra8 26.Bc4 Qb6+–) 26.Nb8 Qb8 (26...Qf7 27.Nc6 Qe6 28.Kg2+–) 27.Qc4 Qc7 (27...Bf8+–) 28.Qc7 Nc7 29.Bd6 Nb5 30.Ra8 (30.Ra8 Bf8 31.Bf8+–) 1–0. Speedy – wernt, internet, 2017.

6.Be2 a5!?=.

6.Be2 Bf3 7.gf3?! A) 7...h6 A1) 8.Nc3 Nc6 (8...Bg7 9.Ne4 Nc6 10.b5 Ne7 11.Nf6 Bf6; 8...Nbd7 9.a3 a5 10.b5 Nc5 11.d3 Be7; 8...Be7 9.Rg1 Rg8 10.Ne4 Nfd7 11.d4 d5) 9.b5 Ne7 10.f4 ef4 11.Bf3 Rb8; A2) 8.Qa4 Qd7 (8...Nbd7 9.d4 a5 10.ba5 c6 11.Nd2 Ra5) 9.b5 Bg7 10.c5 Nd5 11.f4 f5; A3) 8.Rg1 Bg7 9.Qa4 Qd7 10.Qd7 Nfd7 11.Nc3 Na6; B) 7...a5 B1) 8.Qa4 Nbd7 (8...Qd7 9.Qd7 Nbd7 10.b5 Bg7 11.d3 Nb6; 8...Nfd7 9.f4 Bg7 10.fe5 de5 11.ba5 Nc6) 9.ba5 c6 10.Bc3 Ra7 11.d4 ed4; B2) 8.b5 Bg7 (8...Nbd7 9.Rg1 Bg7 10.d4 ed4 11.Bd4 Nc5; 8...Qe7 9.Rg1 Bg7 10.Nc3 Nbd7 11.d3 Qe6; 8...h6 9.d4 Nbd7 10.Nd2 Bg7 11.de5 de5) 9.d4 Nbd7 10.Rg1 ed4 11.Bd4 Nc5; C) 7...Rg8 C1) 8.a3 Bg7 (8...a5 9.Nc3 Nbd7 10.Ne4 Bg7 11.d4 ed4; 8...h6 9.Nc3 Bg7 10.Qa4 Nc6 11.Rg1 Qd7) 9.Qa4 Qd7 10.Qd7 Nbd7 11.Nc3 a6; C2) 8.0–0 Bg7 (8...Nfd7 9.f4 Qh4 10.Nc3 Nc6 11.b5 Ne7; 8...Nh5 9.d4 Bg7 10.de5 Be5 11.Be5 de5; 8...Qe7 9.d4 Bg7 10.Re1 Nbd7 11.Qa4 ed4) 9.Nc3 Nc6 10.b5 Ne7 11.Ne4 Nd7; C3) 8.Rg1 Bg7 (8...h6 9.Qa4 Qd7 10.Qd7 Nbd7 11.Nc3 c6; 8...h5 9.Qa4 Qd7 10.Qd7 Nbd7 11.Nc3 c6; 8...Qe7 9.Qa4 Nbd7 10.d4 Bg7 11.de5 de5) 9.Qa4 Nc6 10.Nc3 h6 11.b5 Ne7; D) 7...Bg7= D1) 8.a3 Nc6 (8...Qd7 9.c5 dc5 10.Be5 cb4 11.ab4 0–0) 9.b5 Ne7 10.c5 Nf5 11.Qc2 dc5; D2) 8.Rg1 Qd7 (8...h6 9.a3 Qd7 10.Rg2 Nc6 11.b5 Ne7; 8...Nc6 9.b5 Ne7 10.c5 Qd7 11.cd6 cd6) 9.Rg2 Nc6 10.b5 Ne7 11.c5 Qh3; D3) 8.h3 Nc6 (8...0–0 9.Rg1 Qd7 10.Bf1 Nc6 11.b5 Ne7; 8...h6 9.Qa4 Nc6 10.Nc3 Nd7 11.Nd5 Nb6; 8...h5 9.Nc3 a6 10.Qa4 Nc6 11.Nd5 Qd7) 9.b5 Ne7 10.Nc3 Qd7 11.Ne4 Rg8; D4) 8.Nc3 Nc6 (8...Nfd7 9.a3 f5 10.d4 ed4 11.Nb5 Nc6; 8...h6 9.Ne4 Nc6 10.b5 Ne7 11.Nf6 Bf6; 8...0–0 9.Rg1 Nbd7 10.d3 Re8 11.Ne4 Ne4) 9.Qa4 Nd7 10.Nd5 Nb6 11.Qb3 Rg8.

6.Be2 Bf3 7.Bf3+= c6 8.0–0 (8.a3 Nbd7 (8...Bg7 9.0–0 0–0 10.d4 Nbd7 11.Nd2 Re8; 8...Qe7 9.0–0 Bg7 10.d4 0–0 11.Nd2 e4) 9.0–0 Bg7 10.d4 0–0 11.e4 Re8) 8...Bg7 (8...Qb6 9.a3 Bg7 10.d4 e4 11.Be2 0–0; 8...Be7 9.a3 Nbd7 10.d3 Qb6 11.Nc3 0–0; 8...Qe7 9.b5 Bg7 10.Nc3 0–0 11.d3 Rc8) 9.b5 (9.d4 e4 10.Be2 0–0 11.Nc3 d5) 9...0–0 10.d4 (10.d3 Qc7 11.Nc3 Rc8) 10...e4 11.Be2 d5 (11...cb5+=) 12.a4 a5 (12...a6 13.Nc3+=) 13.c5 b6 14.Ba3 Re8 (14...bc5 15.Bc5 Re8 16.Nd2+=) 15.bc6 (15.Nd2 bc5 16.dc5 Nfd7+/–) 15...Nc6+= 16.Bb5 Re6 17.cb6 Qb6 18.Bc5 Qc7 19.Nc3 h5 (19...Bf8 20.Bf8 Rf8 21.Rc1+=) 20.h3 (20.Qb3 Rd8+/–) 20...Bf8+= 21.Bf8 Rf8 22.Qb3 Rd8 23.Rac1 g5 24.g3 (24.f3 ef3 25.Rf3 Qd6+=) 24...Qb6 25.Rb1 Nd4 (25...g4!?+=) 26.ed4+/– Qd4 27.Rfd1 (27.Ne2 Qa7+/–) 27...Qe5 (27...Qc5!?+/–) 28.Ne2+– e3 29.Qe3 (29.Nd4!? ef2 30.Kf2 Rc8+–) 29...Qe3+/– 30.fe3 Re3 31.Kf2 Re5 (31...Ra3 32.Rd3 Ra2 33.Rd4+/–) 32.Bd3 Ne4 (32...g4!? 33.h4 Rde8+–) 33.Be4+– Re4 34.Nc3 Re5 (better is 34...Rc4 35.Nd5 Kg7+–) 35.Rb5 Rde8 (35...Rf5 36.Kg1+–) 36.Rbd5 (better is 36.Ra5 h4 37.gh4 Rf5 38.Kg2 gh4 39.Rad5 Rf6+–) 36...Re3? (36...Kf8+–) 37.Rg5 (37.Ra5 Rc3 38.Rg5 Kf8 39.Rh5 Rc2 40.Kf3 Rc3 41.Kf4 Rc4 42.Kg5 Re5 43.Kf6 Re6 44.Kf5 Ra4+/–) 37...Kf8 38.Rh5 (38.Ra5 Rc3 39.Rh5 Rc2 40.Kf1 Ree2 41.Rd8 Ke7=) 38...Rc3 (38...R8e5 39.Re5 Re5 40.Rd8 Re8 41.Re8 Ke8 42.Ne4+–) 39.Rh8 Kg7 40.Re8 Rc2 (40...Rc4 41.Ra1 f6 42.g4+–) 41.Re2 Rc6 (41...Rc4 42.Ra2 Rc5 43.Rad2+–) 42.Rd5 Rf6 43.Kg2 Kg6 (43...Ra6 44.Ree5+–) 44.Ra5 Rf5 (44...Rc6+–) 45.Rf5 Kf5 46.Kf3 f6 47.h4 (47.a5 Kg5 48.a6 Kh6 49.a7 Kg6 50.a8Q Kf7 51.Qe8 Kg7 52.Re7 Kh6 53.g4 f5 54.Qh5) 47...Kg6 48.Kf4 Kf7 49.Kf5 Kg7 50.Re6 (50.h5 Kf8 51.h6 Kf7 52.h7 Kg7 53.Re7 Kh8 54.Kg6 f5 55.Re8) 50...Kf7 51.h5 (51.a5 Kg7 52.a6 Kf7 53.a7 Kg7 54.Re7 Kf8 55.Kf6 Kg8 56.a8Q) 51...Kg7 52.Rf6 Kg8 (52...Kh7 53.h6 Kg8 54.Kg6 Kh8 55.Rf8) 53.Kg6 Kh8 54.Rf8 1–0. hal1958 – crankn8tr, playchess.de, 2002.

6.h3 Bd7 A) 7.Be2= A1) 7...a5 8.b5 Bg7 9.d4 e4 10.Nfd2 0–0 11.Nc3 Qe7 12.0–0 c6 13.Rb1+=; A2) 7...Na6 8.b5 (8.a3 Bg7 9.d4 e4 10.Nfd2 0–0 11.Nc3 Re8 12.Qc2 c5 13.b5+=) 8...Nb8 9.d4 e4 10.Nfd2 Qe7 11.Nc3 h5 12.0–0 Bf5 13.Qa4+/–; A3) 7...Be7 8.Nc3 (8.0–0 a5 9.b5 0–0 10.Nc3 Re8 11.d4 Bf8 12.Qa4 e4 13.Nd2+=; 8.d3 Rg8 9.0–0 g5 10.Nh2 Qc8 11.d4 g4 12.hg4 Ng4 13.Ng4=; 8.a3 a5 9.0–0 0–0 10.Nc3 Bf5 11.b5 Re8 12.d4 e4 13.Nd2+/–) 8...0–0 9.0–0 a5 10.b5 Bf5 11.d4 ed4 12.Nd4 Be6 13.Nd5+/–; A4) 7...Bg7 8.d4 (8.d3 0–0 9.0–0 Re8 10.Nbd2 a6 11.d4 e4 12.Ne1 Nc6 13.d5=) 8...ed4 9.ed4 0–0 10.Nc3 d5 11.cd5 a5 12.b5 Bf5 13.Qb3=; B) 7.Nc3 B1) 7...a5 8.b5 Bg7 9.Be2 Be6 10.0–0 0–0 11.Ng5 Bc8 12.d4 Nbd7 13.Nf3+=; B2) 7...Qe7 8.Be2 (8.d4 e4 9.Nd2 a5 10.b5 h5 11.Be2 Bf5 12.Nf1 h4 13.Nd2+=; 8.a3 Bg7 9.d4 a5 10.de5 de5 11.b5 0–0 12.e4 Rd8 13.Nd5+=; 8.Rc1 a5 9.Nd5 Qd8 10.Nf6 Qf6 11.d4 Bc6 12.d5 Bd7 13.b5+=; 8.d3 Bg7 9.Be2 0–0 10.0–0 Re8 11.Rc1 a6 12.a4 Nc6 13.Nd5=) 8...Bg7 9.d4 e4 10.Nd2 0–0 11.0–0 c5 12.bc5 dc5 13.Ba3+=; B3) 7...Bg7 8.Be2 (8.Bd3 Nc6 9.b5 Ne7 10.0–0 0–0 11.e4 a6 12.ba6 b6 13.Qc2=; 8.d4 ed4 9.ed4 0–0 10.Be2 d5 11.cd5 a5 12.b5 Bf5 13.Qb3=; 8.a3 0–0 9.d4 ed4 10.Qd4 Bf5 11.Nd5 Nbd7 12.Be2 Re8 13.0–0=; 8.d3 0–0 9.Be2 a6 10.0–0 Nc6 11.b5 ab5 12.cb5 Na7 13.d4=) 8...0–0 9.d4 ed4 10.ed4 c5 11.b5 a6 12.a4 Re8 13.0–0=; C) 7.d4 e4 8.Nfd2 (8.Ng1 Bg7 9.Nc3 0–0 10.Nge2 Re8 11.Rb1 a6 12.Nf4 h6 13.Be2=; 8.Nh2 d5 9.a3 Be6 10.Nc3 a5 11.b5 Nbd7 12.Be2 Bg7 13.cd5+=) 8...Qe7 9.Nc3 h5 10.Qc2 Bf5 11.Nd5 Nd5 12.cd5 a5 13.b5+=.

6.h3 Bf3 7.Qf3+= c6 8.d4 (8.Be2 Na6 (8...Be7+= 9.0–0 Qb6 10.a3 h6 11.Nc3 Nbd7 12.d4 ed4 13.ed4+/–) 9.a3 Bg7 10.0–0 e4 11.Qf4 Qe7 12.Nc3 Qe5 13.Qe5+=; 8.Nc3 Bg7 9.e4 Qb6 10.a3 Nbd7 11.Be2 Nc5 12.bc5 Qb2 13.0–0+=; 8.e4 Nbd7 9.Nc3 Be7 10.Be2 Nf8 11.0–0 Ne6 12.a3 Qb6 13.Rfb1+=; 8.a3 Nbd7 9.e4 a5 10.Be2 ab4 11.ab4 Ra1 12.Ba1 Qb6 13.b5+=; 8.Bd3 Bg7 9.0–0 Qe7 10.e4 0–0 11.a3 a5 12.Nc3 Bh6 13.Rfd1+=) 8...e4 (8...d5 9.c5 e4 10.Qg3= Nbd7 11.Be2 b6 12.b5 Rc8 13.bc6=) 9.Qd1 d5 10.Nd2 (10.a3!?= Bd6 11.Nd2 0–0 12.Be2 Nbd7 13.0–0+=) 10...Bb4+= 11.a3 (11.Be2 dc4 12.Bc4 Nbd7 13.a3+=) 11...Bd6 (11...Bd2 12.Qd2 Nbd7 13.Rb1+=) 12.c5 (12.Qb3 b6 13.cd5+=) 12...Bc7 (12...Be7 13.Be2+=) 13.Be2 0–0 14.Rb1 b6 (14...b5 15.cb6 ab6 16.Qc2–/+) 15.Nb3 (15.0–0 Qe7+=) 15...b5 (15...Nbd7 16.Qc2 b5 17.a4–/+) 16.Bc3 (16.Nd2 Nbd7–/+) 16...Ne8 17.Qd2 a5 18.h4 a4 19.Na1 f5 20.g3 (20.Nc2 h5–/+) 20...h6 21.Nc2 Nf6 22.Nb4 Qe8 23.Kd1 Ng4 24.Bf1 Qe6 25.Kc2 Ba5 26.Rb2 Bb4 27.Bb4 Nd7 28.Qe1 Rae8 29.Be2 Ndf6 30.Bd2 Qe7 31.Rb1 Qg7 32.Qg1 h5 33.Qe1 Qe7 34.Bb4 Nd7 (34...Qc7 35.Kb2–/+) 35.Bd2 (better is 35.Bb5 cb5 36.c6+=) 35...Rf7 36.Bb4 Nb8 37.Qg1 Qa7 38.Qe1 Na6 39.Qg1 (39.Ba5 Qe7–/+) 39...Rb8 40.Qe1 Nf6 41.Qc3 Ne8 42.Qd2 Nb4 43.Rb4 Nc7 44.Ra1 Qa5 45.Rbb1 Qd2 46.Kd2 Ne8 47.Bd1 Rfb7 48.Rb4 Ra7 49.Rab1 Rba8 50.Be2 Kf7 51.Kc2 (51.R4b2 Nc7–/+) 51...Ke7 52.Kd2 Kd7 53.Kc2 Ng7 54.Kd2 Ne6 55.Kc2 Nd8 56.Kd2 (56.Kb2 Nb7–/+) 56...Nb7 57.Kc3 (57.R1b2 Na5–/+) 57...Na5–+ 58.R4b2 Kc7 (58...Ke6 59.Rd1–+) 59.Kb4 Rg8 60.Rh1 Nb7 61.Kc3 Nd8 (61...Re8 62.Rhb1–/+) 62.Kd2 Ne6 63.Kc3 Kb7 (63...Rb8 64.Rhb1–/+) 64.Bd1 (64.Rhb1 Kc8–/+) 64...Rb8 65.Be2 Nc7 66.Rhb1 Ka6 (66...Kc8 67.Kd2–/+) 67.Kb4 Kb7 68.Kc3 Kc8 69.Kc2 Kd7 70.Kd2 Rg8 71.Rh1 Ne8 72.Bd1 Nf6 73.Kc3 Ng4 74.Kb4 Nf6 75.Kc3 Kc7 76.Kb4 Ne8 77.Kc3 Kd7 78.Be2 (78.Kd2 Ke7 79.Be2–/+) 78...Ng7 (78...Ke6 79.Rb4–/+) 79.Bd1 (79.Rhb1 Rb8+=) 79...Ne6 (79...Ke7 80.Be2–/+) 80.Kb4 Nd8 81.Be2 Nb7 82.Kc3 Na5 83.Kb4 Rb8 84.Rhb1 Nb3 (84...Ke7!?–+) 85.Bd1–/+ Na5 ˝–˝. Bennett,Hilton Petrie (2060) – Thornton,Giovanni Antonio (1955), Open, Auckland NZL, 2004.

6.h3 Bf5 A) 7.g4 A1) 7...Bd7 8.Bg2 (8.Nc3 h6 9.Bg2 c6 10.Rc1 Qb6 11.a3 Bg7 12.d4 ed4 13.Nd4+=; 8.d3 h6 9.Bg2 Bg7 10.0–0 Qe7 11.Ne5 de5 12.Bb7 Bc6 13.Ba8+=; 8.g5 Nh5 9.d4 e4 10.d5 Rg8 11.Nfd2 Qg5 12.Ne4 Qe7 13.Nbd2=) 8...h6 9.0–0 c6 10.d4 e4 11.Nfd2 d5 12.f3 h5 13.g5+=; A2) 7...Bc8 8.d4 (8.Bg2 h6 9.0–0 Be6 10.d3 c6 11.Nc3 Bg7 12.b5 Nbd7 13.Rb1=; 8.Nc3 h6 9.d4 Nbd7 10.Qa4 c6 11.de5 de5 12.c5 b5 13.cb6+=; 8.d3 h6 9.Bg2 Bg7 10.d4 ed4 11.Nd4 0–0 12.0–0 Re8 13.a3=; 8.g5 Nfd7 9.d4 h6 10.gh6 Rh6 11.Nbd2 Qe7 12.Qc2 ed4 13.Nd4=) 8...e4 9.Nfd2 d5 10.a3 h5 11.g5 Nh7 12.cd5 Ng5 13.h4+=; A3) 7...Be6 8.Nc3 (8.d4 Bg7 9.Nc3 ed4 10.Nd4 a5 11.Qa4 Nbd7 12.g5 Nh5 13.Ne4=) 8...h5 9.g5 Nh7 10.Rg1 Be7 11.h4 0–0 12.d4 a5 13.ba5=; B) 7.d3 B1) 7...Bg7 8.e4 (8.g4 Be6 9.Bg2 0–0 10.0–0 Nfd7 11.Nbd2 f5 12.g5 e4 13.Nd4=; 8.a3 Nc6 9.b5 Ne7 10.g4 Be6 11.Bg2 h6 12.Nfd2 c6 13.Nc3=; 8.Nbd2 0–0 9.Be2 a5 10.b5 a4 11.e4 Be6 12.0–0 Qe7 13.Ng5=; 8.Be2 0–0 9.0–0 a5 10.b5 Nbd7 11.Nc3 Nc5 12.e4 Bd7 13.Bc1=) 8...Be6 9.Be2 0–0 10.0–0 a5 11.b5 a4 12.Nc3 h6 13.Na4+/–; B2) 7...Nc6 8.b5 (8.g4 Be6 9.b5 Nb8 10.Bg2 h6 11.d4 e4 12.d5 ef3 13.Qf3+=) 8...Ne7 9.g4 Be6 10.Ng5 Bc8 11.f4 Nd7 12.fe5 Ne5 13.d4+=; B3) 7...Na6 8.g4 (8.a3 Bg7 9.Be2 Qe7 10.0–0 0–0 11.e4 Be6 12.Nc3 c5 13.Qa4+=; 8.b5 Nc5 9.g4 Be6 10.d4 Nce4 11.Qc2 ed4 12.g5 de3 13.fe3+=; 8.Bc3 Bg7 9.Be2 0–0 10.0–0 c6 11.Nbd2 Re8 12.e4 Bd7 13.a4=; 8.Qb3 Bg7 9.Be2 Qe7 10.0–0 0–0 11.Nc3 Rfe8 12.e4 Bd7 13.Bc1+=) 8...Be6 9.b5 Nc5 10.d4 Nce4 11.Qc2 ed4 12.g5 de3 13.fe3+=; B4) 7...h6 8.a3 (8.Be2 Bg7 9.0–0 0–0 10.Nbd2 Qe7 11.e4 Bd7 12.a3 a6 13.Qc2=) 8...Bg7 9.Be2 0–0 10.0–0 Nc6 11.e4 Be6 12.Nbd2 Re8 13.Re1=; C) 7.Nc3 C1) 7...Nc6 8.g4 (8.b5 Ne7 9.g4 Be6 10.d4 ed4 11.Nd4 Bg7 12.Bg2 Rb8 13.g5+=; 8.d4 ed4 9.Nd4 Nd4 10.Qd4 Bg7 11.g4 Be6 12.Bg2 0–0 13.Bb7=) 8...Be6 9.b5 Ne7 10.d4 ed4 11.Nd4 Bg7 12.Bg2 Rb8 13.g5+=; C2) 7...a5 8.b5 (8.ba5 Ra5 9.g4 Be6 10.g5 Nfd7 11.d4 f6 12.gf6 Nf6 13.de5+=) 8...Bg7 9.d4 ed4 10.Nd4 Be6 11.Qf3 Bc8 12.Be2 Nbd7 13.0–0+=; C3) 7...Bg7 8.a3 (8.g4 Bc8 9.Bg2 0–0 10.0–0 Be6 11.Ng5 Nc6 12.Ne6 fe6 13.g5+=; 8.d4 e4 9.Nd2 h5 10.Be2 Kd7 11.Rf1 h4 12.Bg4 Re8 13.d5=) 8...Nc6 9.b5 Ne7 10.d4 ed4 11.Nd4 Ne4 12.Ne4 Be4 13.Bd3+=.

6.Be2 Bg7

7.0–0 0–0 8.Na3 a5 (8...Nc6 9.b5 Ne7 10.h3 Bf5 11.d3 a6 12.e4 Bd7 13.Qc2 ab5; 8...Na6 9.Nc2 Qd7 10.d3 Qa4 11.Bc3 e4 12.de4 Ne4 13.Bg7 Kg7; 8...Bf5 9.Nh4 Be6 10.f4 ef4 11.ef4 Ne4 12.Bg7 Kg7 13.Qc2 Qh4; 8...a6 9.d4 Nc6 10.de5 Nd7 11.Nd4 Be2 12.Qe2 Nde5 13.f4 Nd4) 9.b5 Nbd7 10.h3 Bf5 11.d4 ed4 12.ed4 Ne4 13.Nc2 a4.

7.0–0 0–0 8.b5 Nbd7 (8...Bf5 9.Nc3 Nbd7 10.d4 c5 11.d5 Nb6 12.Qd2 e4 13.Nh4 Bd7; 8...a6 9.h3 Bf3 10.Bf3 e4 11.Be2 Nbd7 12.Nc3 Nc5 13.a4 Nfd7; 8...e4 9.Nd4 Be2 10.Qe2 c5 11.bc6 Nc6 12.Nc3 Rc8 13.Nc6 Rc6; 8...Qe7 9.h3 Be6 10.Nc3 Nbd7 11.d4 ed4 12.ed4 d5 13.Re1 Rfe8; 8...Re8 9.Nc3 Nbd7 10.h3 Bf5 11.d4 Ne4 12.Ne4 Be4 13.Nd2 Nf6; 8...Bf3 9.Bf3 e4 10.Be2 Nbd7 11.Nc3 a6 12.Qc2 ab5 13.cb5 Nc5; 8...a5 9.h3 Bf5 10.Nc3 Nbd7 11.g4 Be6 12.Ng5 e4 13.Qc2 Nc5; 8...h6 9.Nc3 Nbd7 10.h3 Bf5 11.d4 Qe7 12.Qd2 Nb6 13.a4 Ne4; 8...c6 9.Nc3 cb5 10.cb5 Nbd7 11.Rc1 Rc8 12.d4 Re8 13.h3 Be6; 8...Qe8 9.h3 Be6 10.Nc3 Nbd7 11.d4 ed4 12.ed4 Nb6 13.d5 Bf5) 9.Nc3 Nc5 10.d4 ed4 11.Nd4 Bd7 12.Qc2 Re8 13.Bf3 Bg4.

7.0–0 0–0 8.Nc3 a5 (8...Qe7 9.h3 Bf3 10.Bf3 e4 11.Be2 Nc6 12.Qb3 a5 13.a3 Qd7; 8...Bf5 9.Qb3 Nc6 10.b5 Na5 11.Qa4 c6 12.d4 e4 13.Nh4 Bd7; 8...Nc6 9.b5 Na5 10.Qa4 c6 11.h3 Bf5 12.g4 Bd7 13.Qa3 e4; 8...Nbd7 9.Ng5 Be2 10.Qe2 h6 11.Nge4 Ne4 12.Ne4 f5 13.Nc3 a5; 8...e4 9.Nd4 Be2 10.Qe2 a5 11.b5 c5 12.bc6 Nc6 13.Ncb5 Qd7; 8...a6 9.h3 Bd7 10.Qb3 Nc6 11.Bd3 Rb8 12.Rfe1 b6 13.b5 ab5; 8...Na6 9.h3 Bf3 10.Bf3 Nb4 11.Rb1 Rb8 12.Ba3 Nc6 13.Qc2 Qd7; 8...Bc8 9.Ng5 h6 10.Nge4 Be6 11.Nf6 Bf6 12.Ne4 Bg7 13.Qa4 f5; 8...Qe8 9.h3 Bf3 10.Bf3 e4 11.Be2 Nc6 12.a3 Qe6 13.Nb5 Qe7) 9.b5 Nbd7 10.d4 ed4 11.Nd4 Be2 12.Qe2 Nc5 13.f3 Re8.

7.0–0 0–0 8.d4 e4 (8...ed4 9.Nd4 Be2 10.Qe2 Na6 11.b5 Nc5 12.Nc3 Qd7 13.f3 Rae8; 8...Qe7 9.Nc3 Nc6 10.b5 ed4 11.ed4 Na5 12.Qa4 b6 13.h3 Bf5) 9.Nfd2 Be2 10.Qe2 Nc6 11.Nc3 Nb4 12.Nde4 Ne4 13.Ne4 Qe7.

7.0–0 0–0 8.h3 Bf3 (8...Bd7 9.Nc3 e4 10.Nd4 Nc6 11.Nc6 Bc6 12.d4 a5 13.b5 Bd7) 9.Bf3 e4 10.Be2 Nc6 11.Qa4 a5 12.b5 Nb4 13.a3 Nd3.

7.0–0 a5 A) 8.b5 0–0 (8...Nbd7 9.h3 Be6 10.Nc3 0–0 11.Ng5 Qe7 12.Ne6 Qe6 13.d4 ed4; 8...Qe7 9.h3 Be6 10.d4 ed4 11.ed4 0–0 12.Re1 Re8 13.Nc3 d5; 8...Bf5 9.d4 e4 10.Nh4 Be6 11.Nd2 0–0 12.d5 Bd7 13.g3 Bh3) 9.h3 Bf5 10.d4 e4 11.Nfd2 g5 12.Nc3 Qe7 13.f4 gf4; B) 8.Qa4 Bd7 (8...Nbd7 9.Nc3 0–0 10.ba5 c6 11.h3 Nc5 12.Qb4 Bf3 13.Bf3 Nd3; 8...Qd7 9.b5 e4 10.Nd4 Be2 11.Ne2 0–0 12.Bf6 Bf6 13.Nbc3 Qg4; 8...Nc6 9.b5 Ne7 10.h3 Bf5 11.Nc3 0–0 12.d4 e4 13.Nd2 d5) 9.b5 Na6 10.Nc3 Nc5 11.Qa3 Ne6 12.Nd5 0–0 13.Rac1 e4; C) 8.ba5 0–0 (8...Nc6 9.Nc3 0–0 10.Ng5 Be2 11.Qe2 Ra5 12.Nb5 h6 13.Nf3 e4) 9.Nc3 Nc6 10.h3 Bf5 11.Qb3 Na5 12.Qb4 e4 13.Ne1 c5; D) 8.h3 Bf5 (8...Bf3 9.Bf3 0–0 10.Bb7 Ra7 11.Qf3 Qe8 12.Bd5 e4 13.Qd1 ab4; 8...Be6 9.b5 Nbd7 10.Nc3 0–0 11.Ng5 Qe7 12.Ne6 Qe6 13.d4 ed4) 9.b5 0–0 10.Nc3 Nbd7 11.g4 Be6 12.Ng5 Qe7 13.Ne6 fe6.

7.0–0 Na6 A) 8.h3 Bf5 (8...Bd7 9.Qb3 0–0 10.Nc3 Qe7 11.Nd5 Nd5 12.cd5 Rac8 13.Rac1 c6; 8...Bc8 9.Qb3 0–0 10.Nc3 Qe7 11.Nd5 Nd5 12.cd5 Bd7 13.Rac1 Rfc8; 8...Be6 9.Nc3 0–0 10.Qb3 Qe7 11.d4 c6 12.Rae1 ed4 13.ed4 Nc7) 9.Qb3 0–0 10.Nc3 Ne4 11.Ne4 Be4 12.d4 ed4 13.Bd4 Re8; B) 8.a3 0–0 (8...Qd7 9.h3 Bf5 10.d4 ed4 11.Nd4 0–0 12.Nf5 Qf5 13.Bf3 c6; 8...Qe7 9.h3 Bd7 10.Nc3 0–0 11.Qb3 c6 12.Ng5 Nc7 13.Nce4 Ne4; 8...e4 9.Ng5 Be2 10.Qe2 0–0 11.Nc3 h6 12.Nh3 d5 13.Rab1 c6; 8...c6 9.Nc3 0–0 10.d4 Re8 11.h3 Bf5 12.Qb3 Nd7 13.de5 Ne5; 8...Bd7 9.d4 ed4 10.ed4 c6 11.Nc3 0–0 12.Qd2 Bf5 13.Bd3 Qd7; 8...c5 9.h3 Bf5 10.Nc3 0–0 11.g4 Be6 12.b5 Nc7 13.Qc2 Qe7; 8...Qc8 9.h3 Bf5 10.d4 e4 11.Nfd2 h5 12.b5 Nb8 13.Nc3 0–0; 8...Be6 9.d4 0–0 10.Nc3 ed4 11.Nd4 Qe7 12.h3 Bd7 13.Qb3 c5; 8...Rb8 9.h3 Bf5 10.Nh4 Be6 11.Nc3 0–0 12.Nf3 Bf5 13.d4 e4; 8...h5 9.h3 Bd7 10.Nc3 0–0 11.d4 Re8 12.b5 ed4 13.ed4 Nb8; 8...Rc8 9.h3 Bd7 10.Nc3 0–0 11.Qc2 c5 12.Qb3 Bf5 13.d3 Bd7; 8...Bh6 9.h3 Be6 10.Nc3 0–0 11.d4 c5 12.bc5 ed4 13.ed4 dc5) 9.Nc3 e4 10.Nd4 Be2 11.Qe2 c5 12.bc5 dc5 13.Ndb5 Nc7; C) 8.Qb3 e4 (8...0–0 9.Nc3 e4 10.Ng5 Be2 11.Ne2 h6 12.Bf6 Bf6 13.Ne4 Ba1) 9.Nd4 0–0 10.Nc3 c5 11.Nc2 cb4 12.Nb4 Nc5 13.Qd1 Be2; D) 8.Nc3 Nb4 (8...0–0 9.Qb3 e4 10.Ng5 Be2 11.Ne2 h6 12.Bf6 Bf6 13.Ne4 Ba1) 9.Qb3 Nc6 10.Qb7 Qc8 11.Qc8 Rc8 12.h3 Bd7 13.Rab1 0–0.

7.0–0 Nc6 A) 8.Nc3 Nb4 (8...0–0 9.b5 Na5 10.Qa4 c6 11.h3 Bf5 12.d3 Qb6 13.Qa3 c5) 9.Qb3 Nc6 10.Qb7 Qc8 11.Qc8 Rc8 12.h3 Bd7 13.Rab1 0–0; B) 8.h3 Bf3 (8...Bf5 9.Nh4 Be6 10.b5 Ne7 11.Nf3 a6 12.Nc3 ab5 13.cb5 Ned5; 8...Bd7 9.b5 Ne7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Nf5 13.Bd3 Nd4; 8...Be6 9.b5 Ne7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Qd7 13.Qc2 Nf5) 9.Bf3 0–0 10.b5 Nb4 11.d3 d5 12.a3 e4 13.de4 de4; C) 8.b5 Ne7 (8...Na5 9.Qa4 e4 10.Qa5 ef3 11.Bf3 Bf3 12.gf3 0–0 13.Bd4 Nd7) 9.h3 Bf5 10.Nc3 0–0 11.Qb3 a6 12.d4 e4 13.Nh4 Bd7.

7.0–0 Nbd7 A) 8.h3 Bf5 (8...Be6 9.Nc3 a5 10.b5 Qe7 11.d4 0–0 12.Ng5 Bf5 13.e4 ed4) 9.Nc3 a5 10.a3 0–0 11.Nb5 Nb6 12.d4 e4 13.Nd2 c6; B) 8.a3 e4 (8...0–0 9.Nc3 e4 10.Nd4 Be2 11.Qe2 Ne5 12.Rab1 c5 13.bc5 dc5; 8...Nb6 9.Nc3 0–0 10.Qc2 Qe7 11.h3 Be6 12.d3 Rfd8 13.Ng5 Bf5; 8...Bf5 9.Nc3 0–0 10.h3 Nb6 11.d4 e4 12.Nd2 a5 13.Qc2 Qe7; 8...a5 9.Nc3 0–0 10.Qc2 Nb6 11.h3 Be6 12.d3 Qe7 13.Ng5 Bf5; 8...Qe7 9.Nc3 0–0 10.h3 Bf5 11.Qb3 Nb6 12.d3 a5 13.e4 Bd7; 8...Be6 9.Nc3 h6 10.Bd3 0–0 11.Qb3 Nb6 12.h3 Qd7 13.b5 a5; 8...h6 9.Nc3 0–0 10.Bd3 Nb6 11.h3 Be6 12.Qe2 Qd7 13.a4 a5; 8...Bh6 9.Nc3 0–0 10.h3 Be6 11.Qb3 Qe7 12.d4 c6 13.d5 Bf5) 9.Nd4 Be2 10.Qe2 0–0 11.f4 c5 12.Nb5 Qb8 13.d3 a6; C) 8.d4 0–0 (8...Qe7 9.h3 Bf3 10.Bf3 e4 11.Be2 a5 12.b5 0–0 13.Nc3 Qe6; 8...e4 9.Nfd2 Be2 10.Qe2 0–0 11.Nc3 a5 12.ba5 Qe7 13.Nb3 Rfe8; 8...a5 9.b5 0–0 10.h3 Be6 11.Nbd2 ed4 12.Nd4 Re8 13.Qc2 Nc5; 8...ed4 9.Nd4 Be2 10.Qe2 c5 11.bc5 Nc5 12.Nc3 0–0 13.f3 Qd7) 9.Nc3 a5 10.b5 ed4 11.Nd4 Be2 12.Qe2 Nc5 13.f3 Qd7; D) 8.b5 a6 (8...Qe7 9.Nc3 0–0 10.h3 Bf3 11.Bf3 e4 12.Be2 a6 13.a4 Nc5; 8...0–0 9.Nc3 Nc5 10.d4 ed4 11.Nd4 Bd7 12.Qc2 Re8 13.Rfd1 Qe7; 8...Nc5 9.Nc3 0–0 10.d4 ed4 11.Nd4 Bd7 12.Nb3 Nfe4 13.Ne4 Bb2; 8...e4 9.Nd4 Be2 10.Qe2 0–0 11.Nc3 Nc5 12.f3 ef3 13.Rf3 Ng4; 8...Bf5 9.d4 0–0 10.Nh4 Bb1 11.Qb1 ed4 12.Bd4 Nc5 13.Qb2 Ne6; 8...Nb6 9.Nc3 0–0 10.Qc2 a6 11.ba6 ba6 12.d4 Qe7 13.h3 Bd7; 8...a5 9.h3 Be6 10.Nc3 Qe7 11.d4 0–0 12.d5 Bf5 13.Nh4 Nc5) 9.h3 Bf5 10.g4 Be6 11.d4 ed4 12.ed4 Ne4 13.Nbd2 Nd2; E) 8.Na3 a5 (8...0–0 9.Nb5 a6 10.Nc3 a5 11.a3 e4 12.Ng5 Be2 13.Qe2 h6; 8...Bf5 9.Nh4 Be6 10.f4 a5 11.f5 gf5 12.Nf5 Bf5 13.Rf5 ab4) 9.ba5 0–0 10.Nb5 Ra5 11.d4 Bf5 12.Nh4 Be6 13.d5 Rb5; F) 8.Nc3 a5 (8...0–0 9.h3 Bf5 10.g4 Be6 11.d4 ed4 12.Nd4 Ne5 13.Ne6 fe6) 9.ba5 Ra5 10.h3 Bf5 11.g4 Be6 12.d4 ed4 13.ed4 Nb6.

7.0–0 e4 8.Ng5 (8.Nd4 Be2 9.Qe2 Na6 10.b5 Nc5 11.Nc3 0–0 12.f3 ef3 13.Qf3 a6) 8...Be2 (8...Bf5 9.f3 0–0 10.Nc3 Nc6 11.b5 Na5 12.Qa4 ef3 13.Rf3 c6) 9.Qe2 0–0 10.f3 ef3 11.Qf3 Nbd7 12.Nc3 Ne5 13.Qe2 Qe7.

7.Qa4 Nc6 A) 8.Nc3 0–0 (8...a6 9.Nd5 Bd7 10.Qb3 0–0 11.0–0 e4 12.Nd4 Nd5 13.cd5 Nd4; 8...Bf5 9.b5 Ne7 10.d4 e4 11.Nd2 0–0 12.0–0 a6 13.ba6 Ra6; 8...Bd7 9.b5 Ne7 10.Qb3 0–0 11.0–0 Nf5 12.Ng5 a6 13.a4 Bh6) 9.b5 Ne7 10.h3 Bd7 11.Qb3 a6 12.0–0 ab5 13.cb5 Be6; B) 8.h3 Bd7 (8...Bf5 9.b5 Ne7 10.Nc3 0–0 11.g4 Bd7 12.g5 Nh5 13.Qc2 a6; 8...Be6 9.Nc3 a6 10.0–0 0–0 11.Ng5 Bf5 12.d3 Qd7 13.Qb3 a5) 9.b5 Ne7 10.Nc3 0–0 11.0–0 a6 12.Qb3 ab5 13.cb5 Be6; C) 8.b5 Ne7 9.Nc3 0–0 10.h3 Bd7 11.0–0 a6 12.Qb3 ab5 13.cb5 Be6.

7.Qa4 Qd7 8.Qd7 (8.Nc3 Qa4 (8...0–0 9.Qd7 Bd7 10.b5 Bf5 11.Nh4 Be6 12.Nf3 Bf5 13.Nh4 Be6) 9.Na4 Nc6 10.b5 Nb4 11.0–0 a6 12.b6 Bd7 13.Bd1 c5; 8.Qb5 c6 (8...Nc6 9.Nc3 a6 10.Qa4 0–0 11.h3 b5 12.Qb3 bc4 13.Bc4 Bf3) 9.Qa5 e4 10.Nd4 Be2 11.Ne2 0–0 12.0–0 b6 13.Qa4 b5) 8...Kd7 (8...Bd7 9.b5 Bf5 10.d4 e4 11.Nh4 Bd7 12.f4 Ng4 13.Bg4 Bg4; 8...Nbd7 9.h3 Be6 10.Na3 c6 11.Ng5 a5 12.b5 Nc5 13.Ne6 fe6; 8...Nfd7 9.Nc3 Na6 10.a3 0–0 11.h3 Be6 12.Ng5 Nb6 13.Ne6 fe6) 9.Nc3 Nc6 10.a3 Rhg8 11.0–0 Bf5 12.b5 Na5 13.d4 Nb3.

7.Qa4 Bd7 A) 8.Qa3 Nc6 (8...0–0 9.Nc3 Nc6 10.b5 Ne7 11.0–0 a6 12.b6 c5 13.Qb3 Nc8; 8...a6 9.Nc3 Nc6 10.0–0 0–0 11.Nd5 e4 12.Nf6 Bf6 13.Nd4 Qe7; 8...Qe7 9.Nc3 0–0 10.0–0 e4 11.Nd4 Nc6 12.Nc6 Bc6 13.f3 ef3; 8...e4 9.Ng5 0–0 10.Nc3 Qe7 11.f3 ef3 12.Nf3 Nc6 13.b5 Ne5; 8...Bf5 9.Nc3 0–0 10.0–0 Nbd7 11.h3 Re8 12.g4 Be6 13.Ng5 e4; 8...Na6 9.Nc3 0–0 10.b5 Nc5 11.Ne5 a6 12.Nd7 Qd7 13.Qb4 Nfe4) 9.b5 Ne7 10.Nc3 a6 11.b6 c5 12.Qb3 0–0 13.0–0 Nc8; B) 8.Qb3 Nc6 (8...a6 9.Nc3 Nc6 10.0–0 0–0 11.Ng5 Bf5 12.f3 Re8 13.g4 Bc8; 8...0–0 9.Nc3 Bf5 10.0–0 Nc6 11.b5 Na5 12.Qa4 c6 13.h3 Re8; 8...Bf5 9.Nc3 0–0 10.Nh4 Bd7 11.0–0 Nc6 12.b5 Ne7 13.f4 e4; 8...a5 9.b5 Bf5 10.Nh4 Be6 11.Nc3 Nbd7 12.d4 ed4 13.ed4 0–0; 8...Bh6 9.Nc3 0–0 10.h4 Nc6 11.0–0 a6 12.Bd3 Bg7 13.Ng5 h6; 8...Qe7 9.Nc3 0–0 10.Nd5 Nd5 11.cd5 c6 12.Rc1 cd5 13.b5 Be6) 9.Nc3 a6 10.0–0 0–0 11.Ng5 Bf5 12.f3 a5 13.a3 a4.

7.Qa4 Nbd7 A) 8.h3 Bf5 (8...Be6 9.Ng5 0–0 10.Ne6 fe6 11.Nc3 a5 12.0–0 ab4 13.Qb4 e4) 9.Nc3 0–0 10.g4 Nb6 11.Qb3 Bd7 12.g5 Nh5 13.Bd3 Qe7; B) 8.Nc3 0–0 (8...Bf5 9.Nh4 Be6 10.Nf3 0–0 11.0–0 a5 12.Ng5 Bf5 13.e4 Nb6; 8...a5 9.h3 Bf5 10.g4 Be6 11.g5 Nh5 12.ba5 e4 13.Nd4 Bd4; 8...Qe7 9.h3 Be6 10.0–0 0–0 11.Ng5 Nb6 12.Qb3 Bf5 13.e4 Bc8) 9.h3 Nb6 10.Qb3 Bd7 11.0–0 a5 12.b5 Qe7 13.Ng5 a4.

7.Qb3 A) 7...Nc6 A1) 8.Nc3 0–0 (8...Bf5 9.b5 Ne7 10.0–0 0–0 11.h3 a6 12.a4 b6 13.d4 e4; 8...Bd7 9.b5 Ne7 10.0–0 0–0 11.d4 ed4 12.Nd4 Nf5 13.Bd3 Nd4; 8...a6 9.h3 Bd7 10.0–0 0–0 11.Bd3 a5 12.a3 ab4 13.ab4 Ra6; 8...Qd7 9.h3 Be6 10.b5 Ne7 11.0–0 0–0 12.Ng5 Nf5 13.Bf3 Rab8) 9.b5 Na5 10.Qa4 c5 11.h3 Bd7 12.Ng5 a6 13.Qc2 ab5; A2) 8.h3 Bd7 (8...Be6 9.b5 Ne7 10.0–0 0–0 11.Nc3 Bf5 12.d4 Nd7 13.Rfe1 Re8; 8...Bf5 9.b5 Na5 10.Qa4 c5 11.g4 Be6 12.Nc3 h6 13.g5 hg5; 8...Bf3 9.Bf3 0–0 10.Nc3 Re8 11.d3 e4 12.de4 a5 13.a3 ab4; 8...Bc8 9.b5 Ne7 10.Nc3 0–0 11.0–0 Bd7 12.d4 ed4 13.Nd4 Nf5) 9.Nc3 0–0 10.b5 Na5 11.Qb4 c5 12.bc6 Bc6 13.0–0 Qb6; A3) 8.b5 Ne7 (8...Na5 9.Qa4 c5 10.Nc3 0–0 11.h3 Bd7 12.Ng5 a6 13.0–0 ab5) 9.h3 Bf5 10.Nc3 0–0 11.0–0 a6 12.a4 Qd7 13.d4 ab5; B) 7...a5 B1) 8.Nc3 ab4 (8...0–0 9.h3 Bc8 10.b5 Nbd7 11.Qa3 e4 12.Nd4 Ne5 13.Qa4 Nd3) 9.Qb4 Na6 10.Qb7 Nc5 11.Qb4 e4 12.Nd4 Be2 13.Ke2 0–0; B2) 8.h3 Bc8 (8...Be6 9.Ng5 Bf5 10.g4 Bc8 11.c5 0–0 12.cd6 cd6 13.Nc3 ab4; 8...Bf5 9.g4 Be6 10.Ng5 Bc8 11.ba5 h6 12.Nf3 Nc6 13.Nc3 Na5; 8...Bf3 9.Bf3 Qc8 10.b5 Nbd7 11.Nc3 Nc5 12.Qc2 Qf5 13.Qf5 gf5; 8...Bd7 9.b5 e4 10.Ng5 0–0 11.Nc3 a4 12.Qc2 a3 13.Bc1 Re8; 8...a4 9.Qa3 Be6 10.Nc3 0–0 11.0–0 Qe7 12.Ng5 Bf5 13.e4 Bd7) 9.b5 Nbd7 10.Nc3 0–0 11.Qa3 e4 12.Nd4 Nc5 13.0–0 Bd7; C) 7...Qe7 C1) 8.h3 Bd7 (8...Bf3 9.gf3 0–0 10.Nc3 Nbd7 11.Rg1 a5 12.ba5 Nc5 13.Qb4 e4; 8...Be6 9.Nc3 0–0 10.0–0 e4 11.Nd4 Nc6 12.Ne6 fe6 13.f3 ef3; 8...Bc8 9.Nc3 0–0 10.0–0 e4 11.Nd4 Nc6 12.Ncb5 Ne5 13.Qc2 c5) 9.Nc3 e4 10.Nd4 0–0 11.Nd5 Nd5 12.cd5 Qg5 13.g3 c6; C2) 8.Nc3 e4 (8...0–0 9.h3 Bf3 10.gf3 Nbd7 11.Rg1 a5 12.ba5 Nc5 13.Qb4 e4) 9.Ng5 Be2 10.Ne2 h6 11.Nh3 Nc6 12.b5 Ne5 13.0–0 Nfd7; D) 7...Bf5 D1) 8.0–0 0–0 (8...Nbd7 9.d4 0–0 10.Nc3 Qe7 11.h3 Nb6 12.a4 Ne4 13.a5 Nc3; 8...Nc6 9.b5 Ne7 10.Nc3 0–0 11.h3 a5 12.g4 Bd7 13.a4 c6) 9.d4 e4 10.Nfd2 a6 11.Nc3 Nc6 12.h3 h5 13.Nd5 a5; D2) 8.h3 0–0 (8...a5 9.g4 Be6 10.Ng5 Bc8 11.b5 Nbd7 12.Nc3 Nc5 13.Qc2 0–0; 8...Nc6 9.b5 Na5 10.Qa4 c5 11.Nc3 e4 12.Nh4 Bd7 13.Ne4 Ne4; 8...Nbd7 9.Nc3 0–0 10.g4 Be6 11.Ng5 a5 12.Ne6 fe6 13.g5 Nh5; 8...h6 9.0–0 0–0 10.Nc3 Nc6 11.Nh4 Be6 12.b5 Ne7 13.Nf3 Nf5; 8...h5 9.0–0 0–0 10.Nc3 Nc6 11.Nh4 Be6 12.b5 Na5 13.Qa4 c6; 8...e4 9.Nd4 Bd7 10.g4 0–0 11.g5 Nh5 12.Nc3 Bd4 13.ed4 Qg5) 9.Nc3 Nc6 10.b5 Na5 11.Qa4 c6 12.0–0 Re8 13.Ba3 c5; D3) 8.Nh4 Bg4 (8...Be6 9.Nc3 0–0 10.0–0 a5 11.a3 Nc6 12.b5 Ne7 13.Nf3 Nf5; 8...Bd7 9.Nc3 0–0 10.0–0 Nc6 11.b5 Ne7 12.Bd3 Be6 13.Nf3 Bf5; 8...Bc8 9.Nc3 0–0 10.0–0 a6 11.a4 Be6 12.Nf3 Nc6 13.Ng5 Bf5) 9.Nf3 0–0 10.Nc3 e4 11.Nd4 Be2 12.Nce2 Nc6 13.0–0 Ne5; D4) 8.a3 0–0 (8...Nc6 9.Nc3 0–0 10.0–0 e4 11.Nd4 Nd4 12.ed4 c6 13.Nd1 Be6; 8...a6 9.Nc3 Nc6 10.0–0 0–0 11.Nh4 Be6 12.Nf3 Bf5 13.Nh4 Bd7; 8...Qe7 9.Nc3 0–0 10.0–0 Nbd7 11.d3 a5 12.e4 Be6 13.Nb5 Nb6; 8...Qc8 9.Nc3 0–0 10.0–0 Nc6 11.b5 Ne7 12.h3 Qd7 13.d4 e4; 8...h6 9.Nc3 0–0 10.0–0 Nc6 11.Nh4 Be6 12.b5 Ne7 13.Nf3 a6; 8...Nbd7 9.Nc3 0–0 10.0–0 Nb6 11.d3 e4 12.de4 Ne4 13.Rad1 Bc3; 8...a5 9.0–0 ab4 10.ab4 Ra1 11.Ba1 0–0 12.Bb2 Nc6 13.Nc3 e4; 8...b6 9.Nc3 0–0 10.0–0 Nc6 11.Nd5 Re8 12.b5 Na5 13.Qb4 Be4) 9.Nc3 Nc6 10.0–0 e4 11.Nd4 Nd4 12.ed4 Bh6 13.Rfd1 c6; D5) 8.c5 0–0 (8...Nc6 9.b5 Be6 10.Qa3 Ne7 11.Ng5 Bf5 12.0–0 h6 13.Nf3 Ne4; 8...Nbd7 9.cd6 cd6 10.Nc3 0–0 11.0–0 Qe7 12.Rac1 Rac8 13.h3 Nb6) 9.cd6 cd6 10.0–0 Nc6 11.Nc3 Qb6 12.b5 Na5 13.Qb4 Rfc8; D6) 8.h4 0–0 (8...a5 9.Nc3 0–0 10.ba5 Nc6 11.0–0 Na5 12.Qb4 e4 13.Ng5 h6; 8...Nc6 9.b5 Ne7 10.Nc3 0–0 11.0–0 Qd7 12.Ng5 h6 13.Nf3 Bg4; 8...Nbd7 9.Nc3 a5 10.0–0 ab4 11.Qb4 0–0 12.Ng5 Nc5 13.d4 Nd3; 8...Qd7 9.Nc3 Nc6 10.b5 Ne7 11.h5 Nh5 12.Ng5 Nf6 13.e4 h6; 8...a6 9.Nc3 Nc6 10.Rc1 0–0 11.0–0 a5 12.b5 Nb4 13.Na4 Bg4) 9.Nc3 a5 10.ba5 Nc6 11.0–0 Na5 12.Qa4 Re8 13.Rfe1 c6; D7) 8.Nc3 0–0 (8...Nc6 9.b5 Ne7 10.0–0 0–0 11.h3 c5 12.d3 h6 13.a4 Qa5; 8...Nbd7 9.h3 0–0 10.g4 Be6 11.Ng5 a5 12.Ne6 fe6 13.g5 Nh5) 9.0–0 Nc6 10.Nh4 Be6 11.b5 Na5 12.Qa4 c6 13.Nf3 Bf5; E) 7...Nbd7 E1) 8.Nc3 a5 (8...0–0 9.h3 Bf5 10.g4 Be6 11.Ng5 a5 12.Ne6 fe6 13.g5 Nh5; 8...Bf5 9.h3 0–0 10.g4 Be6 11.Ng5 a5 12.Ne6 fe6 13.g5 Nh5; 8...h6 9.h3 Bf5 10.0–0 0–0 11.d4 Qe7 12.Rad1 a6 13.de5 de5; 8...h5 9.h3 Bf5 10.Ng5 0–0 11.0–0 Bh6 12.h4 Qe7 13.d4 c6) 9.h3 Be6 10.Ng5 0–0 11.a3 ab4 12.Ne6 fe6 13.ab4 Ra1; E2) 8.h3 Bf5 (8...Be6 9.Nc3 0–0 10.Ng5 a5 11.a3 Bf5 12.g4 ab4 13.ab4 Ra1; 8...Bf3 9.Bf3 0–0 10.Nc3 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 c6) 9.Nc3 Ne4 10.Ne4 Be4 11.d3 Bf5 12.e4 Be6 13.d4 ed4; F) 7...0–0 F1) 8.h3 Bf3 (8...Bc8 9.0–0 e4 10.Nd4 c5 11.Nc2 Nc6 12.Nc3 Be6 13.Nd5 Nd5; 8...Bf5 9.Nc3 Nc6 10.b5 Na5 11.Qa4 c6 12.0–0 Re8 13.Ba3 c5; 8...Be6 9.Nc3 Nc6 10.Ng5 Bf5 11.b5 Na5 12.Qa4 c6 13.e4 Bd7; 8...Bd7 9.Nc3 Re8 10.Ng5 h6 11.Nge4 Ne4 12.Ne4 Bc6 13.d3 d5) 9.gf3 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Qd7 13.Qa3 Na6; F2) 8.Nc3 e4 (8...Nc6 9.h3 Bf5 10.g4 Be6 11.g5 Nd7 12.a3 a5 13.Bd3 Nb6; 8...Bf5 9.0–0 Nc6 10.Nh4 Be6 11.b5 Na5 12.Qa4 c6 13.Nf3 Bf5; 8...a5 9.h3 Bc8 10.a3 ab4 11.ab4 Ra1 12.Ba1 e4 13.Nd4 c5; 8...a6 9.h3 Bd7 10.0–0 Nc6 11.Bd3 a5 12.a3 Ne7 13.b5 Nf5; 8...Bd7 9.0–0 Nc6 10.b5 Ne7 11.d4 ed4 12.Nd4 Nf5 13.Bd3 Nd4; 8...Re8 9.h3 Bd7 10.0–0 e4 11.Nd4 Nc6 12.Nc6 Bc6 13.Nb5 Qd7) 9.Nd4 Be2 10.Nce2 Nc6 11.0–0 Ne5 12.Nf4 Qd7 13.Qc2 c6.

7.d3 0–0 8.Nbd2 Nc6 9.a3 Re8 10.0–0 a6 11.Rc1 Ne7 12.h3 Bf3 13.Bf3 c6 14.g4 Qc7 15.Qb3 Rad8 16.g5 Nh5 17.Qd1 e4 (17...d5!?+=) 18.Bg7+– ef3 19.Bc3 Qd7 20.Qf3 Nf5 21.Qg4 Qe7 22.Ne4 d5? (better is 22...Qe6+–) 23.Nf6 Nf6 24.Bf6 (24.gf6?! Qe6 25.cd5 cd5+/–) 24...Qe6 25.Bd8 Rd8 26.cd5 cd5 (26...Rd5 27.e4 Rd4 28.f4+– (28.ef5?! Rg4 29.hg4 Qe2=)) 27.Rc7 b6 28.Rfc1 Kg7 29.Qf4 Nd6 (29...b5 30.R1c6 Qe8 31.Ra6+–) 30.R1c6 a5 31.b5 Qh3 (31...Qf5 32.Qf5 Nf5 33.Rb6 Kg8+–) 32.Qf6 Kf8 33.Qh8 (33.Rd6?! Qg4 34.Kf1 Qd1 35.Kg2 Qg4 36.Kh2 Qh4 37.Kg1 Qg4 38.Kh1 Qh5 39.Kg1 Qg4=) 1–0. usingprogram (1970) – ruzdija45, kurnik, 2012.

7.d4 Na6 8.b5 Nb4 (8...e4 9.ba6 ef3 10.Bf3 Bf3 11.Qf3 ba6 12.Qc6 Nd7 13.Nc3 Rb8) 9.a3 Nd3 10.Bd3 e4 11.Be2 ef3 12.Bf3 Qd7 13.Bg4 Qg4.

7.d4 Nc6 A) 8.Nc3 0–0 (8...ed4 9.Nd4 Be2 10.Nc6 bc6 11.Qe2 0–0 12.0–0 Qd7 13.Rad1 Rab8) 9.de5 Bf3 10.gf3 de5 11.b5 Ne7 12.0–0 Qc8 13.Ne4 Rd8; B) 8.b5 Nb4 (8...Ne7 9.Nc3 ed4 10.Nd4 Be2 11.Qe2 0–0 12.0–0 a6 13.a4 Qd7; 8...Na5 9.de5 de5 10.Qd8 Rd8 11.Be5 Bf3 12.gf3 Nh5 13.Bg7 Ng7; 8...e4 9.bc6 ef3 10.Bf3 Bf3 11.Qf3 b6 12.0–0 0–0 13.Nc3 Qe7) 9.a3 Nd3 10.Bd3 e4 11.Be2 ef3 12.Bf3 Qd7 13.Bg4 Qg4; C) 8.Nbd2 ed4 (8...0–0 9.b5 Ne7 10.h3 Bf5 11.de5 Nd7 12.0–0 Ne5 13.Qb3 c6; 8...e4 9.Ng5 Be2 10.Qe2 Nb4 11.0–0 Qe7 12.Bc3 Na6 13.f3 ef3) 9.Nd4 Be2 10.Nc6 bc6 11.Qe2 Rb8 12.b5 0–0 13.0–0 Qe7; D) 8.de5 de5 (8...Nd7 9.Nc3 Bf3 10.gf3 de5 11.b5 Ne7 12.Qc2 Nf5 13.0–0–0 Qh4) 9.Ne5 Qd1 10.Bd1 Nb4 11.Nc3 0–0–0 12.0–0 Be6 13.Nb5 Nd3.

7.d4 ed4 A) 8.h3 de3 (8...Bd7 9.Nd4 0–0 10.Nc3 Na6 11.b5 Nc5 12.Qc2 Re8 13.0–0 Nfe4; 8...Bf3 9.Bf3 Nc6 10.b5 Ne5 11.Bd4 Qc8 12.0–0 0–0 13.Nd2 a6; 8...Be6 9.Nd4 0–0 10.Nc3 a5 11.b5 Nbd7 12.0–0 Nc5 13.Qc2 Qe7; 8...Bc8 9.Nd4 0–0 10.0–0 Nc6 11.Nc6 bc6 12.Nc3 Rb8 13.Qa4 Bf5) 9.hg4 ef2 10.Kf1 Ng4 11.Bg7 Ne3 12.Kf2 Nd1 13.Bd1 Rg8; B) 8.Nd4 Be2 (8...Bd7 9.b5 c5 10.Nb3 0–0 11.0–0 Bf5 12.Bf3 Qc7 13.g4 Be6; 8...Qd7 9.f3 Be6 10.b5 0–0 11.0–0 Qe7 12.Nc3 Nbd7 13.Ne6 Qe6; 8...Qc8 9.Nc3 Be2 10.Qe2 0–0 11.Nd5 Qd7 12.0–0 Nc6 13.Nc6 Nd5) 9.Qe2 0–0 10.Nc3 Na6 11.b5 Nc5 12.0–0 Qd7 13.f3 Rae8.

7.d4 e4 8.Nfd2 Be2 9.Qe2 0–0 10.Nc3 Re8 (10...Qe8 11.0–0 Qe7 12.a3 a5 13.b5 Nbd7) 11.a4 (11.0–0 Bh6 12.Nb3 c6 13.f4 Nbd7) 11...Nc6 12.Ba3 (12.b5 Nb4 13.0–0 Qd7) 12...Qd7 (12...a5 13.b5 Nb4) 13.b5 Nd8 (13...Ne7+=) 14.a5 c6 (14...a6 15.Bb2=) 15.0–0+= d5 16.Rfb1 Bf8 (16...Ne6 17.Rb3+=) 17.Bf8+/– Kf8 18.Na4 Ne6 19.Rb4 Qe7 (19...cb5 20.Rb5 Rac8 21.Rab1 dc4 22.Nc4+=) 20.Rab1+/– Nd7 21.bc6 bc6 22.Rb7 Reb8 23.cd5 cd5 24.Qb5 Rb7 25.Qb7 Rb8 26.Qc6 (better is 26.Qd5!? Rb1 27.Nb1+–) 26...Rb1+= 27.Nb1 Nf6 28.Nbc3 Qc7 (28...Qa3!? 29.g3 Kg7+=) 29.Qb5 Kg7 30.h3 Qd8 31.a6 Nc7 32.Qb7 Qd6 33.Nc5 Qb6 34.N3a4 Qa5 35.Qa7?? (better is 35.Kh2+–) 35...Qe1= 36.Kh2 Qf2 37.Qc7 Ng4 ˝–˝. Chirpii,Alexandru (1975) – Halkin,Yuri, Sun Pawn Open, Ilichevsk UKR, 2007.

7.d4 Bf3 8.Bf3 e4 9.Be2 0–0 10.Nc3 a6 11.a3 Nc6 12.0–0 Qd7 13.Qc2 Rfe8.

7.h3 Bc8 A) 8.0–0 0–0 (8...e4 9.Nd4 0–0 10.Nc3 Nc6 11.Nc6 bc6 12.Qb3 Qe7 13.b5 c5; 8...Nc6 9.b5 Ne7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Nf5 13.Qd2 Re8; 8...Bd7 9.Nc3 0–0 10.Ng5 h6 11.Nge4 Ne4 12.Ne4 Qh4 13.d3 Nc6) 9.Nc3 e4 10.Nd4 Nc6 11.Nc6 bc6 12.Qc2 Qe7 13.d4 ed3; B) 8.Qa4 Bd7 (8...Qd7 9.b5 Na6 10.Qa3 Nc5 11.0–0 0–0 12.Nc3 Qe7 13.d4 ed4; 8...Nbd7 9.Nc3 0–0 10.0–0 Nb6 11.Qa5 Be6 12.d3 Qe7 13.Ng5 Bd7; 8...Nc6 9.Nc3 0–0 10.b5 Ne7 11.0–0 Bf5 12.Qb3 a6 13.d4 e4) 9.Qa3 0–0 10.Nc3 Nc6 11.b5 Ne7 12.0–0 a6 13.b6 c5; C) 8.b5 0–0 (8...Nbd7 9.Nc3 0–0 10.d4 ed4 11.ed4 Re8 12.0–0 a6 13.a4 ab5; 8...e4 9.Nd4 0–0 10.Nc3 Nbd7 11.0–0 Nc5 12.Qc2 Bd7 13.Nb3 Qe7; 8...a6 9.Nc3 0–0 10.0–0 e4 11.Nd4 Nbd7 12.ba6 Ra6 13.Qc2 Nc5) 9.Nc3 Nbd7 10.0–0 Nc5 11.d4 ed4 12.Nd4 Bd7 13.Nb3 Ne6; D) 8.a3 0–0 (8...e4 9.Nd4 c5 10.bc5 dc5 11.Nb3 Nc6 12.Nc5 Qe7 13.Nb3 0–0; 8...Nc6 9.Nc3 0–0 10.b5 Ne7 11.d4 ed4 12.Nd4 Nf5 13.0–0 Re8; 8...Bd7 9.Nc3 0–0 10.Qc2 Re8 11.Ng5 Nc6 12.0–0 Bf5 13.d3 a6) 9.Nc3 e4 10.Nd4 c5 11.bc5 dc5 12.Nb3 Nc6 13.Nc5 Qe7; E) 8.d3 0–0 (8...a6 9.0–0 Nc6 10.Nc3 0–0 11.Qb3 Bd7 12.Ng5 Bf5 13.Nge4 Re8; 8...Be6 9.Nc3 0–0 10.0–0 a5 11.b5 Nbd7 12.Ng5 Qe7 13.Bf3 Nc5; 8...Nc6 9.b5 Ne7 10.Nc3 0–0 11.0–0 a6 12.d4 ed4 13.Nd4 Nf5; 8...a5 9.b5 0–0 10.Nc3 Nbd7 11.0–0 Nc5 12.d4 ed4 13.Nd4 a4; 8...Na6 9.Qb3 0–0 10.Nc3 Bd7 11.0–0 c5 12.b5 Nc7 13.Ng5 Ne6; 8...Bd7 9.b5 0–0 10.Nc3 Be6 11.Ng5 Nbd7 12.Ne6 fe6 13.Bf3 Rb8; 8...Qe7 9.Nc3 0–0 10.0–0 a5 11.Qa4 Nbd7 12.Qa3 b6 13.g4 h6; 8...h6 9.Nc3 0–0 10.0–0 Be6 11.d4 Nbd7 12.d5 Bf5 13.g4 Ng4; 8...h5 9.Nc3 0–0 10.0–0 Na6 11.Qb3 Bd7 12.Ng5 Qe7 13.Rfe1 Bh6) 9.Nc3 a6 10.0–0 Nc6 11.Qb3 Bf5 12.Ng5 Re8 13.a3 Qd7; F) 8.Na3 0–0 (8...a5 9.ba5 0–0 10.Nb5 Nc6 11.0–0 Qe7 12.d3 Ra5 13.Bc3 Ra6; 8...Nc6 9.b5 Ne7 10.0–0 0–0 11.Qc2 Bd7 12.Bc3 a6 13.d4 Bf5; 8...e4 9.Nd4 0–0 10.0–0 Nc6 11.Qb3 Nd4 12.Bd4 a5 13.b5 Be6; 8...a6 9.Qa4 Bd7 10.b5 0–0 11.0–0 Ne4 12.Qc2 Nc5 13.d4 Bf5; 8...Bd7 9.b5 0–0 10.0–0 a6 11.Qa4 Ne4 12.Qb4 a5 13.Qb3 Bf5; 8...Na6 9.Qb3 0–0 10.0–0 Bf5 11.Nb5 c6 12.Nc3 Qb6 13.Ba3 Ne4) 9.0–0 Nc6 10.b5 Ne7 11.Qc2 Bf5 12.d3 Bd7 13.Bc3 a6; G) 8.d4 ed4 (8...e4 9.Nfd2 Qe7 10.Nc3 0–0 11.0–0 Nc6 12.b5 Nb4 13.Qb3 a5; 8...0–0 9.de5 de5 10.Ne5 Nbd7 11.Nd3 a5 12.Nd2 ab4 13.0–0 Nb6; 8...Qe7 9.de5 de5 10.0–0 e4 11.Nd4 0–0 12.Nc3 Rd8 13.Qa4 Nbd7) 9.Nd4 0–0 10.0–0 Na6 11.a3 c5 12.Nb5 d5 13.N1c3 Be6; H) 8.Qb3 a5 (8...0–0 9.Nc3 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 e4 13.Nd4 c5) 9.a3 ab4 10.ab4 Ra1 11.Ba1 0–0 12.Nc3 e4 13.Nd4 c5; I) 8.Nc3 0–0 (8...Nc6 9.b5 Ne7 10.0–0 0–0 11.Qc2 a6 12.a4 Bd7 13.Qb3 Qc8; 8...Bd7 9.b5 0–0 10.Qc2 Bf5 11.e4 Be6 12.d4 ed4 13.Nd4 Nbd7; 8...a5 9.b5 0–0 10.0–0 e4 11.Nd4 Nbd7 12.f3 Nc5 13.Ne4 Nfe4 ; 8...Qe7 9.Nd5 Nd5 10.cd5 0–0 11.0–0 Nd7 12.Qc2 Nf6 13.Qc4 Bf5) 9.0–0 e4 10.Nd4 Nc6 11.Nc6 bc6 12.d4 Bd7 13.Qb3 Qe7.

7.h3 Bd7 8.Nc3 (8.Qb3 0–0 (8...Qe7 9.Nc3 0–0 10.Nd5 Nd5 11.cd5 c6 12.Rc1 cd5 13.b5 a6; 8...Nc6 9.Nc3 0–0 10.b5 Na5 11.Qb4 c5 12.bc6 Bc6 13.0–0 Qb6; 8...a6 9.Nc3 Nc6 10.0–0 0–0 11.Bd3 Re8 12.Ng5 h6 13.Nge4 Ne4; 8...a5 9.b5 Bf5 10.g4 Be6 11.g5 Ne4 12.Nc3 Nc5 13.Qc2 0–0; 8...Bh6 9.Nc3 0–0 10.0–0 e4 11.Nd4 Nc6 12.Nd5 Nd4 13.Bd4 Nd5; 8...h6 9.b5 0–0 10.0–0 e4 11.Nd4 c5 12.bc6 Nc6 13.Nb5 Be6; 8...c6 9.b5 cb5 10.Na3 Na6 11.Nb5 Qb6 12.d4 0–0 13.0–0 e4; 8...Na6 9.Nc3 0–0 10.0–0 c6 11.Ng5 Qb6 12.Ba3 c5 13.b5 Nc7; 8...e4 9.Ng5 0–0 10.Nc3 Qe7 11.f3 Nc6 12.0–0 ef3 13.Bf3 h6) 9.Nc3 Nc6 10.b5 Na5 11.Qb4 c5 12.bc6 Bc6 13.0–0 Qb6; 8.0–0 e4 (8...0–0 9.Qb3 e4 10.Nd4 Nc6 11.Nc6 bc6 12.Nc3 Qe7 13.f3 c5; 8...Nc6 9.b5 Ne7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Nf5 13.Bf3 Rb8) 9.Nd4 Nc6 10.b5 Nd4 11.Bd4 0–0 12.Nc3 a6 13.a4 ab5; 8.b5 a6 (8...Qe7 9.Nc3 0–0 10.0–0 Be6 11.Ng5 Nbd7 12.Ne6 Qe6 13.d4 a6; 8...0–0 9.Nc3 a6 10.Ng5 h6 11.Nge4 Be6 12.0–0 ab5 13.cb5 Nbd7; 8...e4 9.Nd4 c5 10.Nb3 0–0 11.Nc3 a6 12.0–0 ab5 13.Nb5 Bb5; 8...Be6 9.Ng5 Nbd7 10.Ne6 fe6 11.Nc3 Nc5 12.0–0 0–0 13.Qc2 Nfd7; 8...c6 9.Nc3 0–0 10.Qc2 Qc7 11.a4 Bf5 12.e4 Be6 13.0–0 Nbd7) 9.Nc3 0–0 10.Qa4 e4 11.Nd4 c5 12.Nb3 Be6 13.Qa5 Nbd7; 8.d3 0–0 (8...Nc6 9.b5 Ne7 10.Nc3 0–0 11.0–0 a6 12.d4 ed4 13.Nd4 ab5; 8...Na6 9.Qb3 c5 10.b5 Nc7 11.Nc3 Ne6 12.0–0 0–0 13.Nd2 a6; 8...a6 9.Nc3 Nc6 10.Qb3 0–0 11.0–0 Bf5 12.Ng5 Qd7 13.a3 Rfe8; 8...Qe7 9.Nc3 0–0 10.0–0 Nc6 11.b5 Nd8 12.Ng5 Ne6 13.Ne6 Be6) 9.Nc3 a6 10.0–0 Nc6 11.Qb3 Bf5 12.a3 Qe7 13.Ng5 Qd7; 8.d4 ed4 (8...e4 9.Nfd2 Nc6 10.a3 0–0 11.Nc3 Re8 12.0–0 Qe7 13.Qc2 Rac8; 8...0–0 9.de5 de5 10.Ne5 Qe7 11.0–0 Rd8 12.Nd2 Ba4 13.Qc1 a5) 9.ed4 0–0 10.Nc3 Nc6 11.b5 Ne7 12.0–0 a6 13.ba6 ba6; 8.a3 0–0 (8...e4 9.Nd4 0–0 10.0–0 Nc6 11.Qc2 Qe7 12.Nc6 bc6 13.Nc3 a5; 8...Nc6 9.b5 Ne7 10.0–0 a6 11.Nc3 0–0 12.d4 ed4 13.Nd4 ab5; 8...a5 9.Nc3 0–0 10.b5 e4 11.Nd4 c5 12.bc6 Nc6 13.0–0 Nd4) 9.Nc3 e4 10.Nd4 Nc6 11.0–0 Nd4 12.ed4 Qe7 13.Qb3 Bh6; 8.Na3 Na6 (8...0–0 9.0–0 e4 10.Nd4 Nc6 11.Qb3 a5 12.Nc6 bc6 13.b5 c5; 8...Nc6 9.b5 Ne7 10.0–0 0–0 11.Qc2 a6 12.d4 Bf5 13.Qb3 ed4; 8...e4 9.Ng5 0–0 10.0–0 Nc6 11.Qb3 a5 12.b5 Ne5 13.Qc2 Bf5; 8...a6 9.c5 0–0 10.0–0 Nc6 11.Nc4 e4 12.Nd4 dc5 13.bc5 Qe7; 8...Qe7 9.Qb3 a6 10.0–0 0–0 11.b5 ab5 12.cb5 Be6 13.Qc2 Nd5) 9.Qb3 0–0 10.0–0 c5 11.b5 Nb4 12.Nc2 e4 13.Ng5 h6) 8...0–0 (8...Nc6 9.b5 Ne7 10.0–0 0–0 11.d4 ed4 12.Nd4 Nf5 13.Bf3 Rb8; 8...Qe7 9.b5 0–0 10.0–0 Be6 11.Ng5 Nbd7 12.d4 Bf5 13.e4 ed4; 8...Na6 9.Qb3 0–0 10.0–0 c6 11.Ng5 Qb6 12.Ba3 c5 13.b5 Nc7; 8...a6 9.0–0 0–0 10.Qb3 Nc6 11.Ng5 Bf5 12.Bf3 Re8 13.Nce4 Ne4) 9.Qb3 Nc6 10.b5 Na5 11.Qb4 c5 12.bc6 Bc6 13.0–0 Qb6.

7.h3 Be6 A) 8.Nc3 0–0 (8...a5 9.b5 0–0 10.Ng5 Nbd7 11.Ne6 fe6 12.Qc2 e4 13.Na4 Qe7; 8...Na6 9.0–0 0–0 10.Qb3 Qe7 11.d4 c6 12.Rae1 Rfe8 13.Ng5 Nc7; 8...Bd7 9.b5 0–0 10.Qc2 Bf5 11.e4 Be6 12.0–0 Nbd7 13.d4 ed4; 8...Nc6 9.b5 Ne7 10.Ng5 0–0 11.Ne6 fe6 12.0–0 Qd7 13.Qc2 Nf5; 8...Qe7 9.g4 h6 10.Qb3 0–0 11.Nd5 Bd5 12.cd5 Nbd7 13.0–0 a5; 8...Nbd7 9.Ng5 0–0 10.Ne6 fe6 11.0–0 c5 12.a3 Qb6 13.Qc2 Rac8; 8...Qd7 9.d4 ed4 10.Nd4 0–0 11.b5 Qe7 12.Bf3 Bc4 13.Bb7 Nbd7; 8...a6 9.Ng5 Nc6 10.Ne6 fe6 11.Qb3 0–0 12.0–0 e4 13.f3 ef3) 9.0–0 a5 10.b5 Nbd7 11.Ng5 Qe7 12.Ne6 Qe6 13.d4 ed4; B) 8.0–0 Nc6 (8...a5 9.b5 0–0 10.Ng5 Qe7 11.Nc3 Nbd7 12.Ne6 Qe6 13.d4 ed4; 8...0–0 9.Nc3 a5 10.b5 Nbd7 11.Ng5 Qe7 12.Ne6 Qe6 13.d4 ed4; 8...Nbd7 9.Nc3 a5 10.b5 0–0 11.Ng5 Qe7 12.Ne6 Qe6 13.d4 ed4; 8...Qe7 9.Nc3 0–0 10.d4 ed4 11.Nd4 Nc6 12.Ne6 fe6 13.b5 Ne5; 8...Bd7 9.Nc3 0–0 10.Qb3 Nc6 11.b5 Ne7 12.Bd3 c5 13.a4 Re8; 8...e4 9.Ng5 Nc6 10.Nc3 0–0 11.Ne6 fe6 12.b5 Ne5 13.Qc2 Ned7; 8...Bh6 9.Nc3 0–0 10.d4 Nbd7 11.d5 Bf5 12.g4 Ng4 13.hg4 Bg4; 8...Qd7 9.d4 e4 10.Nfd2 0–0 11.Nc3 Qe7 12.b5 Bd7 13.Qc2 Re8; 8...h6 9.Nc3 0–0 10.d4 a5 11.b5 Nbd7 12.Qc2 ed4 13.Nd4 Re8; 8...Qc8 9.Qa4 Nc6 10.b5 Ne7 11.Nc3 0–0 12.d4 ed4 13.Nd4 a6; 8...Na6 9.Nc3 0–0 10.Qb3 c6 11.d4 Qe7 12.Rae1 Rad8 13.Ng5 Nc7; 8...Bf5 9.Nc3 0–0 10.g4 Bd7 11.Qc2 Nc6 12.b5 Ne7 13.a4 a6) 9.b5 Ne7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Qd7 13.Qc2 Nf5; C) 8.d4 0–0 (8...Nbd7 9.Nc3 0–0 10.d5 Bf5 11.g4 Be4 12.g5 Bf3 13.Bf3 Ne8; 8...Qe7 9.0–0 0–0 10.Nc3 ed4 11.Nd4 a5 12.Ne6 fe6 13.a3 Nc6) 9.Nc3 Na6 10.a3 Qe7 11.0–0 Rfd8 12.Ng5 ed4 13.ed4 c5; D) 8.Qa4 Bd7 (8...Qd7 9.b5 Na6 10.d4 ed4 11.ed4 c5 12.d5 Bf5 13.g4 Bb1; 8...Nc6 9.Ng5 Bf5 10.b5 Ne7 11.g4 Bd7 12.Nc3 a6 13.Qb3 0–0; 8...Nbd7 9.Ng5 0–0 10.Ne6 fe6 11.Nc3 Nb6 12.Qb3 a5 13.0–0 ab4) 9.Qb3 0–0 10.Nc3 Nc6 11.b5 Na5 12.Qb4 c5 13.bc6 Bc6; E) 8.Qb3 Nc6 (8...0–0 9.Nc3 Nc6 10.b5 Na5 11.Qa4 c6 12.0–0 Bf5 13.g4 Bd7; 8...a5 9.Ng5 Bf5 10.Nc3 0–0 11.e4 a4 12.Qa3 Bd7 13.b5 Nh5; 8...Bh6 9.0–0 0–0 10.Nc3 Nc6 11.b5 Na5 12.Qa4 c5 13.h4 Qb6; 8...h6 9.0–0 0–0 10.Nc3 Nc6 11.b5 Na5 12.Qa4 c5 13.Bd3 Qb6; 8...Qe7 9.Nc3 0–0 10.Ng5 Bf5 11.0–0 h6 12.Nf3 c6 13.Nh4 Be6; 8...Nfd7 9.Nc3 Nc6 10.Ne4 0–0 11.Nfg5 Bf5 12.b5 Na5 13.Qb4 Nc5; 8...Qd7 9.0–0 0–0 10.Nc3 Nc6 11.b5 Ne7 12.Ng5 Nf5 13.Bf3 Rab8; 8...e4 9.Ng5 Nc6 10.Nc3 0–0 11.Ne6 fe6 12.0–0 a5 13.b5 Ne5) 9.Nc3 0–0 10.b5 Na5 11.Qa4 c6 12.0–0 Bf5 13.g4 Bd7; F) 8.Ng5 Bf5 (8...Qe7 9.Nc3 0–0 10.0–0 Bf5 11.Qb3 e4 12.f3 ef3 13.Bf3 c6; 8...a5 9.b5 Nbd7 10.Ne6 fe6 11.Nc3 0–0 12.0–0 Nc5 13.Qc2 Nfd7; 8...0–0 9.Ne6 fe6 10.Nc3 a5 11.b5 Nbd7 12.Qc2 e4 13.0–0 Nc5; 8...Nc6 9.Ne6 fe6 10.Nc3 0–0 11.b5 Ne7 12.0–0 Qd7 13.Qb3 Nf5; 8...Bd7 9.Nc3 0–0 10.0–0 h6 11.Nge4 Ne4 12.Ne4 Qh4 13.d3 Nc6; 8...Na6 9.Ne6 fe6 10.Nc3 Nb4 11.Qb3 Na6 12.d4 0–0 13.0–0 Qd7; 8...Bc8 9.Nc3 0–0 10.0–0 h6 11.Nge4 Ne4 12.Ne4 Qh4 13.Bf3 Be6; 8...e4 9.Nc3 0–0 10.Ne6 fe6 11.Qc2 Nc6 12.a3 Qd7 13.0–0 a6; 8...Qc8 9.Nc3 0–0 10.0–0 Nc6 11.Qb3 a6 12.Ne6 Qe6 13.Nd5 Qd7) 9.Nc3 h6 10.Nf3 0–0 11.0–0 Nc6 12.Nh4 Be6 13.b5 Ne7.

7.h3 Bf3 8.Bf3 Nc6 (8...a5 9.b5 Qc8 10.g4 Nbd7 11.g5 Nh5 12.Nc3 Nc5 13.Qc2 0–0; 8...Qc8 9.Nc3 0–0 10.0–0 Nc6 11.b5 Ne7 12.Qc2 Nf5 13.Ne4 Re8; 8...c6 9.0–0 Nbd7 10.Nc3 0–0 11.Qc2 Nb6 12.d3 Qd7 13.a4 a5; 8...e4 9.Be4 Nc6 10.b5 Na5 11.Qa4 Ne4 12.Bg7 Rg8 13.Bd4 Qh4; 8...Nbd7 9.Nc3 0–0 10.0–0 c6 11.Qc2 Nb6 12.d3 d5 13.c5 Nbd7) 9.Qa4 e4 10.Be4 Ne4 11.Bg7 Rg8 12.Bc3 a5 13.ba5 Qd7.

7.h3 Bf5 A) 8.Nc3 0–0 (8...h5 9.0–0 0–0 10.Qa4 Nbd7 11.d4 Ne4 12.Ne4 Be4 13.Nd2 Bf5; 8...Bd7 9.Qc2 Nc6 10.b5 Ne7 11.d4 ed4 12.Nd4 0–0 13.0–0 Nf5; 8...h6 9.Qb3 0–0 10.0–0 Nbd7 11.d4 Qe7 12.c5 Rfe8 13.cd6 cd6) 9.g4 Be6 10.0–0 a5 11.b5 Nbd7 12.Ng5 e4 13.Qc2 Nc5; B) 8.Qa4 Nc6 (8...Nbd7 9.Nc3 0–0 10.g4 Be6 11.Ng5 d5 12.Ne6 fe6 13.Qc2 d4; 8...Qd7 9.Qd7 Nbd7 10.g4 Be6 11.Nc3 Nb6 12.d3 0–0 13.g5 Nh5; 8...Bd7 9.Qb3 Nc6 10.0–0 0–0 11.Nc3 e4 12.Ng5 Bf5 13.b5 Ne5) 9.b5 Ne7 10.Nc3 0–0 11.g4 Bd7 12.g5 Nh5 13.Qc2 a6; C) 8.0–0 0–0 (8...Nc6 9.g4 Be6 10.b5 Ne7 11.Nc3 h5 12.Ng5 Bd7 13.Nce4 hg4; 8...a5 9.b5 Nbd7 10.d4 0–0 11.Nbd2 Nb6 12.de5 Nfd7 13.e4 Be6; 8...Nbd7 9.g4 Be6 10.Nc3 a5 11.ba5 0–0 12.Ng5 Ra5 13.Ne6 fe6) 9.Nc3 Nc6 10.Nh4 Be6 11.b5 Ne7 12.Nf3 a6 13.d4 ab5; D) 8.d4 0–0 (8...Nc6 9.0–0 0–0 10.b5 e4 11.Nh4 Ne7 12.Nf5 Nf5 13.Nc3 Qd7; 8...e4 9.Nfd2 h5 10.b5 Nbd7 11.Nc3 Qe7 12.0–0 h4 13.Qb3 0–0) 9.de5 de5 10.g4 Be6 11.Ne5 Qe7 12.Nd2 Nfd7 13.Nd7 Nd7; E) 8.Nh4 Bd7 (8...Be6 9.Nc3 0–0 10.Nf3 e4 11.Ng5 Nc6 12.Ne6 fe6 13.0–0 Qd7; 8...Bc8 9.Nc3 e4 10.Qa4 Nc6 11.0–0 Nd7 12.b5 Ncb8 13.g3 Nc5) 9.Nc3 0–0 10.b5 e4 11.g3 a6 12.Qa4 Be6 13.Qc2 ab5; F) 8.Qb3 Nc6 (8...0–0 9.Nc3 Nc6 10.b5 Na5 11.Qa4 c6 12.0–0 Re8 13.d4 a6; 8...a5 9.g4 Be6 10.Nc3 ab4 11.Qb4 0–0 12.Qb7 Nbd7 13.Rb1 Nc5; 8...h6 9.Nc3 0–0 10.0–0 Nc6 11.b5 Na5 12.Qa4 c5 13.bc6 Nc6; 8...Nbd7 9.Nc3 0–0 10.g4 Be6 11.Ng5 a5 12.Ne6 fe6 13.g5 Nh5; 8...Bd7 9.Nc3 Nc6 10.b5 Ne7 11.0–0 0–0 12.d4 ed4 13.Nd4 Nf5; 8...Ne4 9.g4 Be6 10.Bd3 d5 11.Be5 Be5 12.Ne5 Nf2 13.Kf2 Qf6; 8...e4 9.Nd4 Bd7 10.Nc3 0–0 11.0–0 Nc6 12.Nc6 Bc6 13.Nb5 Qd7; 8...Be6 9.Ng5 Bf5 10.g4 Bc8 11.Nc3 0–0 12.Nf3 Nc6 13.g5 Nh5; 8...h5 9.Nc3 0–0 10.0–0 Nc6 11.Nh4 Be6 12.b5 Na5 13.Qa4 c6; 8...Na6 9.Nc3 Ne4 10.h4 Nf6 11.0–0 0–0 12.d4 e4 13.Nd2 Re8) 9.Nc3 0–0 10.b5 Na5 11.Qa3 c5 12.g4 e4 13.Ng5 Bd7; G) 8.g4 Be6 (8...Bd7 9.Nc3 0–0 10.g5 Nh5 11.b5 a6 12.a4 e4 13.Nd4 Bd4) 9.Nc3 0–0 10.g5 Nfd7 11.Rg1 Nb6 12.Qb3 Nc6 13.Nd5 Bh3.

5.Nf3 Bg7

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

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

6.Nc3 0–0 7.Be2 Nbd7 8.0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 Nbd7 8.Nc3).

6.Nc3 0–0 7.Be2 Re8 8.0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 Re8 8.Nc3).

6.Nc3 0–0 7.Be2 Re8 8.0–0 Nbd7 9.d4 e4 10.Nd2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0–0 e4 9.Nfd2 Re8 10.Nc3).

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

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

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

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

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

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

6.d4 e4 7.Nfd2 0–0 8.Be2 Re8 9.Nc3 Nbd7 10.0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0–0 e4 9.Nfd2 Re8 10.Nc3).

6.d4 ed4

(--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.d4 ed4).

7.ed4 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 ed4 8.ed4).

7.Qd4 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 ed4 8.Qd4).

7.Qd4 Nc6 8.Qc3 0–0 9.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Qd4 Nc6 9.Qc3).

7.Nd4 0–0 8.Nc3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.Nc3 0–0 7.d4 ed4 8.Nd4).

7.Nd4 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 ed4 8.Nd4).

6.Be2 0–0

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

7.0–0 Nbd7 8.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0–0).

7.0–0 Re8 8.d3 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.d3 Re8 8.0–0).

7.0–0 Re8 8.d4 e4 9.Nfd2 Nbd7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0–0 e4 9.Nfd2 Re8).

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

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

5.g3 Bg7

6.Nf3 b6 (6...e4!? 7.Ng5 d5–/+) 7.Bg2= Bb7 8.0–0 0–0 9.d4 ed4 10.Nd4 Bg2 11.Kg2 Nbd7 12.Nd2 Ne5 13.N2f3 (better is 13.Qb3!?=) 13...Nc4–/+ 14.Bc3 Ne4 15.Qb3 d5 16.Rac1? (16.Nc6 A) 16...Bc3 17.Nd8 Ba1 18.Nc6+– (18.Ra1?! Rfd8 19.Rc1 c5=); B) 16...Qd6 17.Bg7 Kg7–+ (worse is 17...Qc6 18.b5 Qe6 19.Bf8 Kf8 20.Nd4+=)) 16...Qd7 (better is 16...Nc3!? 17.Rc3 c5 18.Ne2 Bc3 19.Nc3 cb4 20.Qb4–+) 17.Rfd1 c5 (17...Nc3 18.Rc3 c5 19.Ne2 Bc3 20.Nc3–/+) 18.bc5 bc5 (18...Nc3?! 19.c6 Qc7 20.Rc3=) 19.Ne2 Rab8?? (better is 19...Qc6 20.Bg7 Kg7–/+) 20.Qc2?? (better is 20.Qc4! Rfd8 21.Qd3+–) 20...Bc3 (20...Rfd8!? 21.Bg7 Kg7 22.Rd3–+) 21.Nc3–/+ Rb2 22.Qd3?? (22.Qe4! de4 23.Rd7 ef3 24.Kg1–/+) 22...Nc3 (better is 22...Nf2 23.Qc2 Rc2 24.Rc2 Ng4–+) 23.Rc3 Rd8?? (better is 23...Qe6–+) 24.Rc4+– dc4 25.Qd7 Rd7 26.Rd7 c3 (26...Ra2 27.Rc7 Ra5 28.Rb7+/–) 27.Rd1 (27.Rd3!? Rc2+–) 27...Ra2 28.Rc1 c2 29.Ne1 Rb2 30.Nc2 (30.Rc2?! Rc2 31.Nc2 f6+–) 30...a5 31.Na3 Rb3 32.Nc2 (32.Nc4!? a4+–) 32...a4 (32...Rb2 33.Ne1 Rb6+–) 33.Ra1+– Rb2 (33...Rc3 34.Ne1 Rc4 35.Nd3+–) 34.Na3 (better is 34.Ne1!? Kg7+–) 34...Rb4 35.Rc1 Rb3 36.Rc5?? (better is 36.Nc4+–) 36...Ra3+= 37.Ra5 Ra1 38.Kf3 a3 39.Ke4 a2 40.h4 h5 (40...f6 41.g4=) 41.f3 (41.Ke5!? Kg7 42.Ra8+=) 41...Rg1 42.Ra2 Rg3 43.Ra4 (better is 43.Rh2!?=) 43...Kg7 44.f4 Rh3 45.Ra2 Rh4 46.Kf3 Rh1 47.Rh2?? (better is 47.e4–/+) 47...Rh2–+ 0–1. Fournier,Frederic (1830) – Spike (1815), rated blitz game, 2002.

6.Nf3 e4!? 7.Ng5 d5 –/+.

6.Bg2 0–0 7.d3 a5 A) 8.ba5 A1) 8...Na6 9.Nf3 (9.Nc3 Bf5 10.Nf3 Nc5 11.e4 Bg4 12.0–0 Ra5 13.Qd2 Ra6 14.Rfe1; 9.Ne2 Nc5 10.0–0 Ra5 11.d4 ed4 12.Nd4 Ra4 13.Qe2 Bg4 14.f3) 9...Nc5 10.0–0 Bf5 11.e4 Bg4 12.Qd2 c6 13.Bc3 Na4 14.Bb4; A2) 8...Bf5 9.Nf3 (9.Nc3 Nc6 10.Nf3 Qd7 11.0–0 Ra5 12.Ng5 Nb4 13.Nce4 d5 14.Bc3; 9.Ne2 Nc6 10.0–0 Ra5 11.Nbc3 Qd7 12.Nb5 Raa8 13.Nec3 Na5 14.Ba3; 9.e4 Bg4 10.Nf3 Nc6 11.0–0 Ra5 12.Qd2 Qd7 13.Nc3 Rfa8 14.Ng5; 9.Bb7 Ra5 10.Nf3 Nbd7 11.d4 e4 12.Nh4 Bh3 13.Rg1 Qe7 14.Bc6) 9...Nc6 10.Nc3 Ra5 11.Nh4 Bg4 12.Qd2 Qd7 13.0–0 Rfa8 14.a4; A3) 8...Nc6 9.Nf3 (9.Ne2 Ra5 10.0–0 Bg4 11.Nbc3 Qd7 12.Qb3 Re8 13.a4 b6 14.Rfe1; 9.Nc3 Ra5 10.Nf3 d5 11.0–0 dc4 12.dc4 e4 13.Nd2 Bf5 14.Qb3) 9...Ra5 10.Nc3 Bf5 11.Nh4 Bg4 12.Qd2 Qd7 13.0–0 Rfa8 14.a4; A4) 8...Bg4 9.Nf3 (9.Ne2 Nbd7 10.0–0 Ra5 11.Nbc3 c6 12.Qc2 Re8 13.Nc1 Qb6 14.Nb3; 9.Qd2 Nbd7 10.Ne2 c6 11.Bc3 Qe7 12.0–0 Nc5 13.e4 d5 14.ed5) 9...Ra5 10.Nc3 Nc6 11.0–0 e4 12.de4 Ne4 13.Qc2 Bf5 14.Ne4; A5) 8...Nbd7 9.Ne2 (9.Nc3 Nc5 10.Nf3 Bf5 11.e4 Bg4 12.0–0 Ra5 13.Qd2 Ra6 14.Rfe1; 9.Nf3 Nc5 10.Nc3 Ra5 11.0–0 Bf5 12.e4 Bg4 13.Qd2 Ra6 14.Rfe1) 9...Nc5 10.0–0 Ra5 11.d4 ed4 12.Nd4 Ra4 13.Nd2 Bd7 14.Bf3; B) 8.b5 B1) 8...Nbd7 9.Ne2 (9.Nc3 Nc5 10.Nge2 Bf5 11.e4 Bg4 12.0–0 Re8 13.f3 Be6 14.Qc2; 9.e4 Nc5 10.Nf3 Bg4 11.0–0 Qe7 12.Nc3 a4 13.Qc2 Bh6 14.Ba3; 9.Nf3 Nc5 10.e4 a4 11.0–0 Re8 12.Nc3 a3 13.Bc1 Be6 14.Qc2; 9.d4 ed4 10.Bd4 Ne5 11.Ne2 Be6 12.0–0 Nc4 13.Nbc3 d5 14.Nf4; 9.Na3 Nc5 10.Nf3 Be6 11.e4 Qe7 12.0–0 Ng4 13.h3 Nf6 14.Qc2) 9...Nc5 10.0–0 Bf5 11.e4 Bg4 12.Nbc3 Qe7 13.Qd2 a4 14.Qc2; B2) 8...e4 9.Be4 (9.de4 Nbd7 10.Ne2 Nc5 11.0–0 Nfe4 12.Bg7 Kg7 13.Nbc3 f5 14.Nd5) 9...Nbd7 10.Bg2 Nc5 11.Ne2 Bf5 12.e4 Bg4 13.Nbc3 Qd7 14.0–0; B3) 8...Bf5 9.Bb7 Ra7 10.Bf3 Nbd7 11.g4 Be6 12.g5 Ne8 13.Nc3 Nc5 14.h4; B4) 8...a4 9.Nf3 (9.d4 a3 10.Na3 ed4 11.ed4 Re8 12.Ne2 Qe7 13.Nc2 Bh6 14.Kf1; 9.Ba3 e4 10.d4 Bg4 11.Ne2 Nbd7 12.Nd2 Nb6 13.Qc2 Re8 14.Nc3; 9.Nc3 a3 10.Bc1 e4 11.d4 Be6 12.Ne4 Bc4 13.Nc3 c5 14.Nge2; 9.Ne2 Nbd7 10.Nbc3 a3 11.Bc1 Re8 12.0–0 Nc5 13.d4 ed4 14.Nd4) 9...Nbd7 10.0–0 Re8 11.Nbd2 Nc5 12.d4 Nd3 13.Qc2 Nb2 14.Qb2.

6.Bg2 0–0 7.d3 a6 A) 8.Ne2 A1) 8...Qe7 9.Nbc3 (9.a3 a5 10.Nbc3 ab4 11.ab4 Ra1 12.Qa1 Na6 13.Qa3 d5 14.b5; 9.0–0 Nc6 10.a3 Bg4 11.Nbc3 Rfe8 12.Nd5 Qd7 13.Qc2 Nd5 14.cd5; 9.Qd2 a5 10.b5 Nbd7 11.0–0 Nc5 12.Nbc3 Bf5 13.Ba3 Rad8 14.Nd5; 9.Nd2 Nc6 10.b5 ab5 11.cb5 Nb4 12.Qb3 c5 13.bc6 Nc6 14.0–0) 9...Nc6 10.a3 Be6 11.0–0 Qd7 12.Nd5 Bg4 13.Qc2 Nd5 14.cd5; A2) 8...d5 9.cd5 (9.0–0 dc4 10.dc4 Qe7 11.Ba3 Nc6 12.Qb3 Qe6 13.Nbc3 Qg4 14.f3; 9.Nbc3 dc4 10.dc4 Nc6 11.Qb3 Be6 12.Rd1 Qb8 13.0–0 Rd8 14.Nd5; 9.Qb3 dc4 10.dc4 a5 11.Be5 ab4 12.Qb4 Re8 13.Bd4 Nc6 14.Bc6; 9.Nd2 Nc6 10.Qb3 Be6 11.0–0 b5 12.Rfd1 Rb8 13.a3 Qd7 14.cd5; 9.a3 dc4 10.dc4 Qe7 11.Nbc3 Rd8 12.Nd5 Nd5 13.cd5 Nd7 14.0–0) 9...Nd5 10.a3 Bg4 11.Nbc3 Nc3 12.Bc3 Nc6 13.0–0 Qg5 14.Qc2; A3) 8...Qd7 9.Nbc3 (9.a3 Nc6 10.Nbc3 Qg4 11.Nd5 Nd5 12.cd5 Ne7 13.Rc1 c6 14.dc6; 9.Nd2 Nc6 10.0–0 Nb4 11.Qb3 a5 12.a3 Nc6 13.Nc3 a4 14.Qc2; 9.0–0 Nc6 10.a3 Qg4 11.Nbc3 Qh5 12.d4 Bd7 13.d5 Ne7 14.Ne4) 9...Nc6 10.b5 ab5 11.cb5 Na5 12.0–0 Qe7 13.Qc2 Be6 14.Ne4; A4) 8...Nc6 9.a3 (9.Qb3 Bf5 10.0–0 a5 11.b5 a4 12.Qa3 Na5 13.e4 Be6 14.Nbc3) 9...d5 10.cd5 Nd5 11.Nbc3 Nf6 12.0–0 Bg4 13.Qc2 Qd6 14.Na4; B) 8.Nf3 B1) 8...Bf5 9.Qb3 (9.0–0 Nc6 10.Qb3 Qd7 11.Nh4 Bh3 12.Nc3 Rfe8 13.Nd5 Bg2 14.Kg2; 9.Nc3 Nc6 10.a3 e4 11.Ne4 Ne4 12.Bg7 Nf2 13.Kf2 Kg7 14.Qd2; 9.Qd2 Nc6 10.e4 Be6 11.0–0 Ng4 12.Ng5 Bd7 13.h3 Bh6 14.f4; 9.Nh4 Bg4 10.Qb3 Nbd7 11.Nc3 a5 12.a3 ab4 13.ab4 Ra1 14.Ba1; 9.a3 a5 10.Nh4 Bg4 11.Bf3 Bf3 12.Nf3 Qe7 13.Nc3 ab4 14.ab4) 9...a5 10.Nh4 Bc8 11.ba5 Na6 12.Nc3 Nc5 13.Qc2 Ra5 14.0–0; B2) 8...Nc6 9.Qb3 (9.Nbd2 a5 10.b5 Nb4 11.Ne4 Bf5 12.Nfg5 d5 13.cd5 Nfd5 14.0–0; 9.a3 Bf5 10.Nc3 e4 11.Ne4 Ne4 12.Bg7 Nf2 13.Kf2 Kg7 14.Qd2; 9.b5 ab5 10.cb5 Nb4 11.Qd2 Nd3 12.Qd3 e4 13.Qd2 ef3 14.Bf3; 9.0–0 Nb4 10.Qb3 c5 11.a3 Nc6 12.Nbd2 Qe7 13.Rab1 Rd8 14.Rfe1; 9.Nc3 Nb4 10.a3 Nc6 11.0–0 Bf5 12.Nd5 Rb8 13.Qc2 Re8 14.Nd2) 9...Bf5 10.Nh4 Qd7 11.0–0 Bh3 12.Nc3 a5 13.a3 Bg2 14.Kg2; C) 8.Nc3 Nc6 9.a3 (9.b5 Ne7 10.Nf3 ab5 11.cb5 Ned5 12.Nd5 Nd5 13.0–0 c6 14.e4) 9...Bf5 10.Nge2 e4 11.Ne4 Ne4 12.Bg7 Nf2 13.Kf2 Kg7 14.Nf4.

6.Bg2 0–0 7.d3 Re8 8.Ne2 (8.Nc3 A) 8...a5 9.b5 (9.ba5 Nc6 10.Nge2 Ra5 11.0–0 Bf5 12.Nd5 Qd7 13.Qb3 Nd5 14.cd5) 9...Nbd7 10.Nge2 Nc5 11.0–0 Bg4 12.Ba3 Ra7 13.Qd2 a4 14.Rab1; B) 8...e4 9.Ne4 (9.de4 Nc6 10.Nge2 a5 11.b5 Ne5 12.Nd4 Nc4 13.Qb3 Nb2 14.Qb2) 9...Ne4 10.Bg7 Nf2 11.Kf2 Kg7 12.Ne2 Qf6 13.Bf3 Nc6 14.Nf4; C) 8...Na6 9.a3 c5 10.b5 Nc7 11.Qb3 Ne6 12.Nge2 Qb6 13.0–0 Bd7 14.a4) 8...d5 (8...a5 9.b5 (9.ba5 Nc6 10.0–0 Bg4 11.Nbc3 Ra5 12.Qd2 Bf5 13.Nd5 e4 14.Nef4; 9.a3 ab4 10.ab4 Ra1 11.Ba1 d5 12.b5 dc4 13.dc4 Qd1 14.Kd1 Nbd7) 9...Nbd7 10.Nbc3 Nc5 11.Ba3 e4 12.Bc5 dc5 13.de4 Ng4 14.Rc1) 9.0–0 (9.Nd2 Nc6 10.b5 Nb4 11.Qb3 a5 12.ba6 Na6 13.cd5 Nc5 14.Qc4; 9.cd5 Nd5 10.a3 Nc6 11.Nbc3 Be6 12.0–0 a5 13.Nd5 Bd5 14.Bd5; 9.b5 dc4 10.dc4 Qd1 11.Kd1 Nbd7 12.Nd2 Nc5 13.Rf1 a6 14.a4; 9.Qb3 d4 10.0–0 de3 11.fe3 a5 12.b5 Bh6 13.d4 Ng4 14.Rf3) 9...c6 (9...Na6 10.a3 Bg4 11.h3 Be6 12.d4 e4 13.Nf4 dc4 14.b5) 10.Nd2 (10.b5 Be6 11.Nd2 cb5 12.cb5 Nbd7 13.Nf3 Bf5 14.Rc1) 10...Bf5 (10...Na6 11.Qb3 Bg4 12.Rfe1 Qe7 13.a3 Nc7 14.Rad1) 11.e4 de4 12.de4 Bg4 13.h3 Be6 14.Qc2 Nfd7 15.c5 'White gets more space' (15.Nb3 Qc7=) 15...a5 16.a3 Na6 17.Bc3 (17.Qc3 b6=) 17...b6 (17...ab4 18.ab4 b6 19.Qd3=) 18.cb6 ab4 19.b7 'White threatens to win material: b7xa8Q' 19...Ra7 20.ab4 Qb6 'Black threatens to win material: Qb6xb7' 21.Rab1 'Wins material' (21.Rfb1 Qb7 22.Nc1 c5=) 21...Rb7 (21...Bf8 22.Rb2+=) 22.Nc1 '=' 22...Reb8 23.Nd3 Qc7 24.Ra1 'White threatens to win material: Ra1xa6' 24...Rb6 (24...c5 25.Ra6 cb4 26.Nb4 Rb4 27.Rc1+=) 25.Ra5 'Can e5 get defended?. A classical outpost' 25...Bf8 'The pressure on the isolated pawn grows. Black threatens to win material: Bf8 26.Ne5 Nb4 27.Nd7 (27.Qa4 Ne5 28.Be5 Bd6=) 27...Qd7 '=/+' 'Black has a new passed pawn: c6' (27...Nc2?? Black is too greedy 28.Nf6 Kh8 29.Ne8 Kg8 30.Nc7+–; 27...Bd7?! 28.Qd1 c5 29.Nc4=) 28.Qd1 Bh3 (better is 28...Na2 is the best option Black has 29.Be5 Rd8+=) 29.Qf3 '+/–' 29...Bg7 30.Nc4 'White threatens to win material: Nc4xb6' 30...R6b7 (30...Rb5 31.Bh3 Qh3+–) 31.Bg7 (better is 31.Bh3!? Qh3 32.Nd6 Bc3 33.Nb7+/– (worse is 33.Qc3 Rd7 34.e5 Qg4+=)) 31...Bg2 '=' 32.Kg2 Kg7 'Black king safety dropped' 33.Ne5 'White threatens to win material: Ne5xd7' (33.Rd1!? should be investigated more closely 33...Qc7 34.Qa3=) 33...Qe6 '=/+' 34.Rh1 f6 35.Ng4 h5 'Black threatens to win material: h5xg4' 36.Ne3 Re8 (36...Rh8 37.e5 fe5 38.Qe4+=) 37.g4 (37.Rah5 gh5 38.Nf5 Kf8 39.Rh5 Rg7 40.Rh8 Rg8 41.Rg8 Qg8=) 37...h4 (37...Qe4!? 38.Qe4 Re4–/+) 38.Rh4 '=/+' 38...Qe4 (38...Nd3 39.Nf5 gf5 40.Qd3 Qe4 41.Qe4 fe4 42.g5+=) 39.Qe4 Re4 40.Ra8 Rbe7 (40...f5 41.Rah8 Kf6 42.gf5 Rh4 43.Rh4 gf5 44.Rh5+=) 41.Rhh8 (41.Rah8 Kf7=) 41...Nd5 ˝–˝. Cuellar,Jorge (2260) – Gonzalez Mena,Jorge, Havana Radio Rebelde, 1982.

6.Bg2 0–0 7.Ne2 a5 8.b5 =.

6.Bg2 0–0 7.Ne2 c6 8.0–0 (8.d4 A) 8...ed4 9.Nd4 (9.Bd4 Be6 10.Qd3 d5 11.c5 a5 12.Qa3) 9...d5 10.0–0 dc4 11.Qc2 Be6 12.Nd2; B) 8...a5 9.b5 (9.Qa4 Nbd7 10.b5 Nb6 11.Qc2 cb5 12.cb5; 9.de5 de5 10.0–0 ab4 11.Be5 Qa5 12.Bd4) 9...e4 10.0–0 d5 11.bc6 bc6 12.Nec3; C) 8...e4 9.0–0 d5 10.Nd2 Qe7 11.a3 a5 12.Bc3; D) 8...Be6 9.Nd2 (9.d5 cd5 10.cd5 Bf5 11.Nd2 Bd3 12.Nc1; 9.Qc2 Nbd7 10.0–0 a5 11.b5 cb5 12.cb5) 9...Nbd7 10.0–0 Qb6 11.Qa4 Rfe8 12.Rad1) 8...Be6 (8...Qb6 9.a3 Be6 10.Qc2 Nbd7 11.d4 Rfe8 12.Nd2) 9.d3 (9.Qb3 b5 10.d3 a5 11.a3 ab4 12.ab4; 9.Qc2 a5 10.b5 Qc7 11.Rc1 Rc8 12.Na3; 9.Na3 Qb6 10.Qb3 Na6 11.Nc2 Bg4 12.Rae1) 9...Qb6 10.Qb3 (10.Qd2 a5= 11.a3 Re8 12.h3) 10...Nbd7 11.Nbc3 a5 (11...Rfe8= 12.Rad1) 12.a3 (12.b5!?=) 12...Nc5!–/+ 13.Qc2 (13.bc5 Qb3 Pinning (13...Qb3 Deflection)) 13...ab4 14.ab4 Qb4 15.Rfb1 Ra1 16.Ba1 Qa5 17.d4? (better is 17.Bb2!?–/+) 17...ed4–+ 18.ed4 (18.Nd4 Bc4 19.Qd2 Bd3–+) 18...Bf5 19.Qd1 Bb1 20.Qb1 Nb3! 21.Qb3 Qa1 22.Bf1 Qa7 (22...Ng4 23.Qb1 Qb1 24.Nb1–+) 23.h3 Nd7 24.d5 (24.Ne4 Bd4 25.Nd4 Qd4 26.Qb7 Nc5 27.Nc5 Qc5–+ (worse is 27...dc5 28.Qc6 Kg7 29.Qb7–+)) 24...Nc5 25.Qc2 Re8 26.Nd1 (26.Qd2 Be5–+) 26...Qa4 (26...Qa5 27.Ne3–+) 27.Qa4 Na4 28.Ne3 Bh6 (28...Nb6 29.Kg2–+) 29.Ng4 Bg7 30.Ne3 Nb6 31.Bg2 (31.Kg2 cd5 32.cd5 f5–+) 31...cd5 32.cd5 Bh6 33.Nf4 Bf4 34.gf4 Rc8 35.Be4 (35.f5 Rc1 36.Kh2 Nc4–+) 35...Nc4 36.Ng4 (36.f5–+) 36...f5 37.Nh6 Kg7 38.Bf5 (38.Nf5 gf5 39.Bf5 Rc5–+) 38...gf5 (better is 38...Rc5–+) 39.Kg2 (39.Nf5 Kf7 40.Kg2–+) 39...Kh6 40.Kg3 b5 41.f3 (41.Kf3 b4 42.Kg2 Rg8 43.Kf1 b3 44.Ke2 b2 45.Kd3 b1Q 46.Kc3 Qc1 47.Kd3 Nb2 48.Ke2 Qc2 49.Ke3 Qd3) 41...Kh5 (41...b4 42.Kf2 b3 43.Ke2 b2 44.Kf2 b1Q 45.h4 Qb2 46.Kg1 Ra8 47.h5 Ra1) 42.Kf2–+ Re8 43.h4 Kh4 44.Kf1 Kg3 45.Kg1 Re1 0–1. Szewczak,Andrzej – Szefer,Michal (2090), Warsaw Entropia–ch, 1996.

6.Bg2 0–0 7.Ne2 d5 A) 8.0–0 dc4 (8...a5 9.cd5 Nd5 10.b5 f5 11.d3 c6 12.bc6; 8...Re8 9.cd5 Nd5 10.a3 c6 11.f4 e4 12.Bg7) 9.Be5 Qe7 10.Bc3 c6 11.Nd4 Nd5 12.Qe2; B) 8.d4 B1) 8...ed4 9.Nd4 (9.Bd4 Nc6 10.Bc3 dc4 11.Qd8 Rd8 12.Bc6) 9...dc4 10.Qc1 a5 11.b5 c5 12.bc6; B2) 8...dc4 9.Qc2 ed4 10.Nd4 a5 11.b5 c5 12.bc6; C) 8.Be5 dc4 9.Na3 Nbd7 10.Bd4 Nb6 11.Qc1 Nfd5 12.Bg7.

4.Nf3 Nc6

5.a3 Bg4 6.e3 Be7 (6...e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4 10.Be2 ef3 11.Bf3 Bf3 12.Qf3=) 7.Be2 0–0 8.h3 Bd7 9.0–0 a6 10.d3 Qc8 11.Nbd2 Re8 12.Ne4 Ne4 13.de4 Bf6 14.Nh2 Bh3? (better is 14...Qd8!?=) 15.gh3+/– Qh3 16.Kh1 Ne7 17.Bg4 Qh4 18.f4 Ng6 19.f5 Ne7 20.Bc3 Qg3?? (better is 20...b5!?+/–) 21.Qe2 (better is 21.Rf3 Qh4 22.Rh3+–) 21...Bg5?? (better is 21...Qh4+–) 22.Rf3 Qh4 23.Be1 (better is 23.Rh3+–) 23...Qh6 24.Bh3 (24.Rh3 Qf6 25.Nf3+–) 24...d5? (24...Qh5 25.Bf1 Bh4 26.Bc3+/–) 25.ed5 (25.Ng4 Qd6 26.ed5 e4+–) 25...Qd6? (better is 25...e4!? 26.Rg3 Bh4+–) 26.e4 c6?! (26...f6 27.Bf2+–) 27.Ng4 (better is 27.c5!? Qd8 28.d6 Nc8+–) 27...cd5 28.cd5 Rec8 29.Bg3 f6 30.Bf2 b6 31.Be3 Rc4?? (31...Be3 32.Ne3 b5+–) 32.Bg5 (better is 32.Qc4!? Be3 33.Ne3 Kf8+–) 32...fg5 (32...Rac8 33.Bd2 R8c7+–) 33.Ne3 (better is 33.Qc4 h5+–) 33...Rc3?? (better is 33...Re4 34.f6! gf6 35.Be6 Kh8+–) 34.Nd1 (better is 34.Nc4 Rc4 35.Qc4+–) 34...Rc4?? (34...Rf3 35.Qf3 a5 36.b5+–) 35.Rc3 (35.Qc4 h5 36.Rc3 g4+–) 35...Rac8 (35...Rc3 36.Nc3 a5 37.ba5+–) 36.Rac1 (better is 36.Rc4 Rf8 37.Qg4+–) 36...Rc3 37.Rc3 Rc3 38.Nc3 h6 (38...Qh6 39.Kg2 b5+–) 39.Qa6 Kh7 40.Qd3 Nc8 (40...Ng8 41.Qb5+–) 41.Bf1 (41.f6 Qd8 42.Bf5 Kg8 43.Bc8 Qc8+–) 41...Na7 (41...Qf6 42.Qe3+–) 42.Nb5 Nb5 43.Qb5 h5 (43...Qc7 44.Qc6 Qd8 45.Qg6 Kg8 46.Qe6 Kf8 47.Bc4+–) 44.Bd3 (better is 44.Qc6 Qd8 45.Qg6 Kg8 46.d6+–) 44...Kh6 (44...Qd8 45.Qc6 g4 46.Qg6 Kg8 47.Qh5 Qa8+–) 45.Qc6 Qc6 46.dc6 g4 47.c7 Kg5 48.c8Q Kf4 49.Kg2 h4 (49...Kg5 50.Qd8 Kf4 51.Bc2 g3 52.Qd2 Kg4 53.Qe3 h4 54.Bd1) 50.f6! gf6 (50...gf6 51.Qc1 Mate attack) 51.Qf5 (51.Qc1) 51...Ke3 52.Bb5 (52.Bb1 h3 53.Kg3 Kd4 54.Qf2 Kc4 55.Qa2 Kb5 56.Qd5 Ka4 57.Bc2 Ka3 58.Qb3) 52...h3+– 53.Kg3 h2 (53...Kd2 54.Qf2 Kc3 55.Ba4 h2 56.Qc2 Kd4 57.Bb5 h1N 58.Kg4 f5 59.Kg5 Ke3 60.Qe2 Kd4 61.Qd3) 54.Kh2 (54.Qf2 Ke4 55.Qc2 Kd5 56.Qd3 Ke6 57.Qd7) 54...g3 55.Kg2 Kd4 (55...Kd2 56.Qd7 Kc2 57.Qd3 Kb2 58.Qd2 Kb3 59.Qc1 f5 60.Bc4 Ka4 61.Qc2 Ka3 62.Qb3) 56.Qf3 f5 57.Qd3 1–0. Fournier,Frederic – globertrotter, Active, 2004.

5.b5 Nb8 6.Nc3= Be7 7.e3 0–0 (7...Nbd7 8.d4=) 8.Be2 (8.d4 Nbd7=) 8...e4 (8...a6 9.d4=) 9.Nd4 (9.Ng5 a6 10.ba6 Na6 11.Nge4 Ne4 12.Ne4 d5 13.cd5 Qd5+=) 9...c6 (9...c5 10.Nb3=) 10.0–0 (10.d3 d5+=) 10...c5 (10...a6 11.d3 ab5 12.cb5= (worse is 12.de4 b4 13.Nb1 Ne4+=)) 11.Nb3+= b6 (11...a6 12.ba6 Na6 13.Qb1+=) 12.d4 (better is 12.d3+/–) 12...ed3?? (better is 12...a6+=) 13.Bf3+– (13.Qd3?! Nbd7+/–; 13.Bd3?! Bb7+/–) 13...d5 (13...Be6 14.Ba8 Bc4 15.Nd2+–) 14.Nd5 (14.cd5?! Bd6 15.Nd2 Qc7+=; 14.Qd3?! Bb7+/–) 14...Nd5 (14...Be6 15.Ne7 Qe7 16.Ba8 Bc4 17.Qb1+–) 15.Bd5 (15.cd5?! Bd6 16.Qd3 a6+/–) 15...Be6 (15...Nc6 16.Bc6 Rb8 17.Be4+–) 16.Ba8 Bc4 (16...Qd7 17.Nd2 a6 18.ba6 Na6+–) 17.Qg4 (17.Qg4 Bf6 18.Bf6 Qf6 19.Qc4+–) 1–0. Wall,Bill – GGC, internet, 2003.

5.b5 Na5

6.Qa4 b6 7.Qc2 Be6 8.e4 Be7 (8...c5!?=) 9.d4+= Bg4 10.de5 Bf3? (better is 10...Nd7+/–) 11.ef6+– (11.gf3?! de5 12.Rg1 Bb4 13.Nd2 Nd7 14.Rg7 Qf6+=) 11...Bg2 (11...Bf6 12.gf3 Bb2 13.Qb2 Qg5+–) 12.fe7 Qe7 13.Bg2 0–0 14.Rg1 g6 (14...f6 15.Qd3+–) 15.Nc3 Qh4 16.Nd5 Qh2 (16...f6 17.Qc3 Rf7 18.Nf6 Kf8+–) 17.Ne7 1–0. Marre – Rosochacz, zagraj.pl, 2003.

6.e3 Be6 7.Qc2 c6 8.a4 Be7 9.Be2 cb5 10.ab5 0–0 11.0–0 Rc8 12.d3 e4 13.Nfd2 ed3 14.Bd3 d5 15.Ra4 dc4 16.Nc4 Nc4 17.Bc4 Qc7 18.Nd2= a6 19.ba6?? b5!–+ 20.Raa1 Ng4 21.Nf3 Bc4 22.Rfd1 Bd6 23.h3 Ne5 24.Ng5 Ng6 25.f4 Bc5 26.Qc3?? f6 27.Ne4 Nf4 28.Nc5 0–1. Coleslaw – KingDOM, ChessWorld.net, 2002.

5.b5 Ne7

6.e3 a6 A) 7.Nc3 ab5 (7...Bg4 8.ba6 Ra6 9.c5 Ra5 10.cd6 cd6 11.Qb3=) 8.cb5 Ng6 9.Bd3 Bg4 10.h3 Bf3 11.Qf3+=; B) 7.c5 e4 (7...Be6 8.Nc3 Ned5 9.ba6 ba6 10.Qa4 Bd7 11.c6=; 7...Bf5 8.cd6 cd6 9.Nc3 Qa5 10.Rc1 Rc8 11.Be2=; 7...Bd7 8.cd6 cd6 9.ba6 ba6 10.Nc3 Qa5 11.e4=; 7...Bg4 8.cd6 cd6 9.Be2 ab5 10.Bb5 Nc6 11.d4=; 7...Ra7 8.cd6 cd6 9.Nc3 Bg4 10.Qa4 Bd7 11.e4=) 8.Ng5 d5 9.h4 ab5 10.Bb5 c6 11.Be2–/+; C) 7.a4 ab5 (7...e4 8.Bf6 gf6 9.Nd4 ab5 10.cb5 Bg7 11.Nc3=; 7...Nf5 8.Qc2 ab5 9.e4 Nh6 10.cb5 Be7 11.Be2+=; 7...Bg4 8.Be2 ab5 9.ab5 Ra1 10.Ba1 Ng6 11.0–0=; 7...Bd7 8.Be2 e4 9.Nd4 d5 10.0–0 c5 11.Nb3=; 7...c6 8.Be2 e4 9.Nd4 d5 10.0–0 dc4 11.Bc4=; 7...Bf5 8.Be2 Ng6 9.0–0 Be7 10.Nc3 0–0 11.d4=) 8.cb5 Bf5 9.Be2 c5 10.bc6 Nc6 11.0–0=; D) 7.Be2 Bf5 (7...e4 8.Ng5 d5 9.cd5 Qd5 10.h4 Bf5 11.Qa4+=; 7...ab5 8.cb5 Ned5 9.0–0 Be7 10.Qc2 0–0 11.Nc3=; 7...Ng6 8.ba6 Ra6 9.0–0 Be7 10.d4 e4 11.Nfd2=; 7...Be6 8.Ng5 Bf5 9.0–0 ab5 10.cb5 Ng6 11.d4=; 7...Nf5 8.Qc2 ab5 9.cb5 Ne7 10.0–0 Bf5 11.d3=; 7...Bg4 8.0–0 ab5 9.cb5 Ng6 10.h3 Bf3 11.Bf3=) 8.Nc3 ab5 9.cb5 Ng6 10.0–0 d5 11.d3=; E) 7.Na3 ab5 (7...Nf5 8.ba6 Ra6 9.c5 Ra8 10.Qc2 Be6 11.Nb5=; 7...Bf5 8.ba6 ba6 9.d4 e4 10.Nd2 Ng6 11.Be2=; 7...e4 8.Ng5 d5 9.cd5 Ned5 10.ba6 Ba3 11.Ba3+=; 7...Bg4 8.ba6 Ra6 9.c5 Ra7 10.cd6 cd6 11.Be2=; 7...Ng6 8.Be2 Be7 9.0–0 ab5 10.Nb5 0–0 11.d4=; 7...Bd7 8.Be2 Nf5 9.d3 ab5 10.Nb5 Be7 11.0–0=) 8.Nb5 c6 9.Nc3 Qa5 10.d4 Bg4 11.Be2=; F) 7.Qb3 ab5 (7...Bd7 8.c5 Be6 9.Qd1 Ned5 10.ba6 ba6 11.Nc3=) 8.c5 c6 9.cd6 Ng6 10.Be5 Ne5 11.Ne5–/+; G) 7.ba6 ba6 8.Nc3 Bf5 9.d4 ed4 10.Nd4 Rb8 11.Nf5+=.

6.e3 Qd7 A) 7.Be2 a6 (7...Qf5 8.0–0 Qg6 9.d4 e4 10.Ne1 Bg4 11.Bg4+=; 7...Qg4 8.0–0 Qg6 9.d4 e4 10.Ne1 Bg4 11.Bg4+=; 7...Ng6 8.d4 e4 9.Nfd2 Qf5 10.0–0 Nh4 11.Kh1=; 7...e4 8.Nd4 d5 9.d3 c5 10.bc6 bc6 11.Nd2+=; 7...Nf5 8.0–0 Be7 9.Qc2 0–0 10.d4 ed4 11.e4+=) 8.0–0 ab5 9.cb5 Qf5 10.b6 c6 11.d3=; B) 7.d4 Ng6 (7...e4 8.Nfd2 Qf5 9.Nc3 d5 10.Qc2 Ng4 11.Nb3+=) 8.de5 de5 9.Be5 Ne5 10.Ne5 Bb4 11.Nd2+=; C) 7.d3 Qg4 (7...a6 8.Nc3 ab5 9.cb5 Nf5 10.Be2 Ra5 11.e4=; 7...Ng6 8.Be2 Be7 9.d4 Qf5 10.0–0 e4 11.Nfd2=; 7...Qf5 8.Nc3 Be6 9.Be2 Qg6 10.0–0 Bh3 11.Ne1=; 7...c6 8.Nc3 a6 9.bc6 bc6 10.Rb1 Rb8 11.Be2=) 8.h3 Qg6 9.Qa4 Bd7 10.Nc3 a6 11.c5=; D) 7.Na3 e4 (7...Ng6 8.c5 Qg4 9.c6 bc6 10.bc6 Rb8 11.h3=; 7...Qg4 8.Qa4 e4 9.b6 Nc6 10.Nb5 ef3 11.Nc7=; 7...a6 8.ba6 b6 9.Be2 e4 10.Bf6 gf6 11.Nd4=; 7...Nf5 8.Qc2 Be7 9.h3 e4 10.Bf6 ef3 11.Be7=; 7...Qf5 8.c5 Be6 9.cd6 cd6 10.Nc4 Ned5 11.Ba3=; 7...Rg8 8.Be2 e4 9.Nd4 d5 10.0–0 Nf5 11.Nf5+=) 8.Bf6 gf6 9.Ng1 a6 10.Qc2 ab5 11.Nb5=; E) 7.Nc3 Qf5 (7...Qg4 8.d4 e4 9.Nd2 Qg6 10.h3 Be6 11.d5+/–; 7...Ng6 8.d4 Be7 9.Bd3 ed4 10.Nd4 Ne5 11.0–0+=) 8.Qa4 Bd7 9.Qa5 Kd8 10.d4 e4 11.Nd2=.

6.e3 e4 A) 7.Nd4 a6 (7...d5 8.d3 c5 9.bc6 bc6 10.de4 Ne4 11.cd5=; 7...Bg4 8.Qc2 Ng6 9.Nc3 Qe7 10.h3 Bd7 11.g4+/–; 7...c6 8.Nc3 Nf5 9.d3 Nd4 10.ed4 d5 11.bc6=; 7...Nf5 8.d3 Nd4 9.Bd4 Bg4 10.Be2 Be2 11.Qe2+=) 8.d3 d5 9.Nc3 ab5 10.de4 bc4 11.ed5=; B) 7.Bf6 gf6 (7...ef3 8.Bh4 fg2 9.Bg2 Qd7 10.d4 Nf5 11.Bg3=) 8.Nd4 Bg7 9.Nc3 f5 10.d3 f4 11.Qd2=.

6.e3 Be6 A) 7.Nc3 Ng6 (7...c6 8.Be2 cb5 9.cb5 Rc8 10.0–0 Ned5 11.Qa4=; 7...h6 8.d4 e4 9.Nd2 d5 10.cd5 Ned5 11.Nde4+=; 7...a6 8.d4 e4 9.Ng5 ab5 10.Ne6 fe6 11.Nb5=; 7...Nc8 8.d4 Nb6 9.Qb3 Nfd7 10.Be2 Be7 11.a4+=; 7...Nf5 8.Be2 Be7 9.h3 Nh6 10.d4 ed4 11.Nd4+=; 7...Qd7 8.d4 Ng6 9.Be2 Be7 10.0–0 0–0 11.de5=) 8.d4 Be7 9.Be2 0–0 10.0–0 a6 11.Ng5=; B) 7.Be2 c6 (7...Nf5 8.0–0 Be7 9.Qc2 Nh6 10.Ng5 Bg4 11.d4+=; 7...Bf5 8.0–0 a6 9.c5 ab5 10.cd6 cd6 11.Bb5=; 7...h6 8.0–0 a6 9.c5 e4 10.Nd4 Bd5 11.ba6+=; 7...Ng6 8.0–0 Be7 9.d4 e4 10.Ng5 Qd7 11.Qc2+=; 7...Bd7 8.Nc3 a6 9.ba6 ba6 10.Rb1 Rb8 11.0–0+=; 7...a6 8.ba6 Ra6 9.0–0 Rb6 10.Bc3 Nc6 11.d4=) 8.0–0 cb5 9.cb5 Ned5 10.d4 e4 11.Ng5=; C) 7.a3 a6 (7...Nf5 8.d4 ed4 9.Nd4 Nd4 10.Bd4 Be7 11.Bd3+=; 7...Ng6 8.Be2 a6 9.0–0 ab5 10.cb5 Qd7 11.b6=; 7...Nc8 8.d4 e4 9.Nfd2 d5 10.cd5 Qd5 11.Nc3=; 7...c6 8.Ng5 Bf5 9.a4 h6 10.Nf3 a6 11.Be2=; 7...e4 8.Bf6 gf6 9.Nd4 f5 10.d3 Bg7 11.Nd2=; 7...Bd7 8.Be2 e4 9.Nd4 a6 10.d3 ab5 11.cb5+=) 8.Be2 ab5 9.cb5 Ned5 10.0–0 Be7 11.Qc2=; D) 7.d4 e4 (7...Ng6 8.Nbd2 e4 9.d5 ef3 10.de6 fe6 11.Nf3+=; 7...ed4 8.Nd4 Bg4 9.Be2 Be2 10.Qe2 d5 11.0–0+=) 8.d5 Bf5 9.Nd4 Bg6 10.Be2 Nf5 11.Nf5+=.

6.e3 Nf5 A) 7.Nc3 a6 (7...Be6 8.Be2 Be7 9.h3 Nh6 10.d4 ed4 11.Nd4+=; 7...c6 8.d4 e4 9.Nd2 d5 10.Qb3 a6 11.bc6=; 7...Bd7 8.Be2 a6 9.0–0 ab5 10.cb5 e4 11.Ng5=; 7...Be7 8.Be2 a6 9.e4 Nd4 10.Nd4 ed4 11.Nd5=; 7...Nh6 8.Be2 a6 9.0–0 ab5 10.cb5 e4 11.Nd4=; 7...Qe7 8.Nd5 Qd8 9.Qc2 c5 10.d4 Nd5 11.cd5+=) 8.e4 Nd4 9.Nd4 ed4 10.Nd5 c5 11.ba6=; B) 7.Qc2 Nh6 (7...Qe7 8.d4 e4 9.Nfd2 Nh6 10.Nc3 Bf5 11.h3+/–; 7...a6 8.ba6 ba6 9.d4 ed4 10.Bd3 Rb8 11.ed4=; 7...Be7 8.d4 ed4 9.Bd3 Nh6 10.ed4 Bg4 11.Nbd2+=; 7...Be6 8.d4 e4 9.Ng5 d5 10.Nc3 Bb4 11.Ne6=; 7...Ng4 8.d4 ed4 9.ed4 d5 10.cd5 Bb4 11.Bc3=) 8.Bd3 Be7 9.Nc3 Bg4 10.Nd5 Nd5 11.cd5=; C) 7.Be2 e4 (7...Be7 8.0–0 e4 9.Nd4 Nd4 10.Bd4 a6 11.f3+=; 7...a6 8.Qc2 ab5 9.cb5 Ne7 10.0–0 Bf5 11.d3+=; 7...Be6 8.0–0 Be7 9.Qc2 Nh6 10.Ng5 Bg4 11.d4+=; 7...Bd7 8.0–0 Qe7 9.d3 0–0–0 10.Nbd2 Kb8 11.Qa4+=; 7...Qd7 8.0–0 a6 9.Qc2 ab5 10.cb5 c5 11.bc6+=; 7...Qe7 8.0–0 e4 9.Nd4 a6 10.d3 ab5 11.Nb5+=) 8.Nd4 d5 9.cd5 Nd5 10.Qc2 Nd4 11.Bd4=; D) 7.d3 Be6 (7...Be7 8.Be2 a6 9.e4 Nh6 10.0–0 0–0 11.Nc3=; 7...a6 8.e4 Nh6 9.Nc3 Be7 10.Bc1 Nhg8 11.Be2+=; 7...Bd7 8.Be2 a6 9.e4 Nh6 10.Nc3 Qe7 11.0–0+=; 7...c6 8.Be2 a6 9.0–0 ab5 10.cb5 Qb6 11.Qc2=; 7...Qd7 8.Nbd2 Nh6 9.Be2 a6 10.ba6 Ra6 11.c5=; 7...Qe7 8.Be2 a6 9.e4 Nh6 10.Nc3 ab5 11.cb5+=) 8.Be2 a6 9.e4 Nh6 10.Ng5 Be7 11.d4=; E) 7.d4 ed4 (7...e4 8.Nfd2 Nh6 9.Qc2 Qe7 10.Nc3 Bf5 11.h3+/–) 8.Nd4 d5 9.Nc2 Nh4 10.cd5 Nd5 11.g3+=.

6.e3 Ng6 A) 7.Nc3 Be7 (7...Bg4 8.Be2 e4 9.Ng5 Ne5 10.f3 ef3 11.gf3=; 7...a6 8.d4 Bg4 9.h3 ed4 10.ed4 Bd7 11.ba6=; 7...Bf5 8.Be2 Be7 9.0–0 0–0 10.d4 a6 11.de5=; 7...Be6 8.Be2 Be7 9.0–0 a6 10.d4 0–0 11.Ng5=; 7...Bd7 8.Be2 a6 9.ba6 Ra6 10.0–0 Be7 11.d4=) 8.Be2 0–0 9.d4 a6 10.Qd3 ab5 11.cb5=; B) 7.d3 Bg4 (7...Be7 8.Be2 a6 9.a4 0–0 10.0–0 Bg4 11.Nc3=; 7...Be6 8.Be2 a6 9.ba6 Ra6 10.0–0 Be7 11.d4=; 7...Bd7 8.Be2 a6 9.a4 Be7 10.0–0 ab5 11.ab5=; 7...a6 8.Be2 ab5 9.cb5 Be7 10.0–0 Qd7 11.a4=; 7...Qe7 8.Be2 a6 9.ba6 Ra6 10.0–0 Qd7 11.d4=; 7...Ne7 8.Be2 a6 9.a4 Ng6 10.0–0 Be7 11.d4=) 8.Be2 a6 9.0–0 Be7 10.Nc3 ab5 11.cb5=; C) 7.Be2 e4 (7...Be7 8.d4 e4 9.Nfd2 c6 10.d5 cb5 11.cb5+=; 7...Bf5 8.0–0 Be7 9.d4 e4 10.Nfd2 Qd7 11.Nc3+=; 7...a6 8.ba6 ba6 9.Nc3 Be7 10.0–0 Rb8 11.Rb1=; 7...Qd7 8.d4 e4 9.Nfd2 Qf5 10.0–0 Nh4 11.Kh1=) 8.Nd4 d5 9.Qc2 dc4 10.Bc4 Ne5 11.d3=; D) 7.Qc2 a6 (7...Bg4 8.Be2 a6 9.h3 Bc8 10.ba6 Ra6 11.d4=; 7...Be6 8.d4 Bg4 9.Nbd2 Qe7 10.Rc1 h6 11.de5+=; 7...c6 8.bc6 bc6 9.d4 e4 10.Nfd2 d5 11.Nc3=; 7...Be7 8.d4 Bg4 9.Nbd2 ed4 10.Bd4 0–0 11.Bd3+=; 7...Qe7 8.Be2 Bg4 9.0–0 a6 10.h3 Bd7 11.d4=; 7...Bd7 8.d4 Qe7 9.Nc3 Bg4 10.Nd5 Nd5 11.cd5+=) 8.Be2 ab5 9.cb5 Bg4 10.0–0 d5 11.h3=; E) 7.d4 Qe7 (7...e4 8.Nfd2 Bf5 9.Be2 Qd7 10.Nc3 a6 11.d5+=; 7...Bg4 8.Be2 e4 9.Nfd2 Be2 10.Qe2 Qe7 11.Nc3=; 7...Bd7 8.Be2 e4 9.Nfd2 a6 10.ba6 Ra6 11.Nc3+=) 8.de5 de5 9.Be2 a6 10.0–0 ab5 11.cb5=.

6.e3 h6 7.d4 (7.Be2 e4 (7...a6 8.0–0 ab5 9.cb5 Be6 10.Nc3 Ng6 11.Bd3=; 7...Be6 8.0–0 a6 9.c5 e4 10.Nd4 Bd5 11.cd6+=; 7...Bf5 8.0–0 a6 9.d4 e4 10.Nh4 ab5 11.Nf5+=; 7...Ng6 8.d4 e4 9.Nfd2 Qe7 10.Nc3 Bf5 11.0–0+=; 7...Nf5 8.d3 a6 9.e4 Ne7 10.0–0 Ng6 11.Nbd2=) 8.Nh4 Neg8 9.g3 Bh3 10.Rg1 a6 11.ba6+=; 7.Nc3 Bf5 (7...e4 8.Nd4 Nf5 9.Nd5 Nd4 10.Bd4 Be7 11.d3+=; 7...a6 8.ba6 Ra6 9.d4 Ng6 10.Nd5 e4 11.Nd2+=; 7...Bg4 8.Be2 e4 9.Nd4 Be2 10.Qe2 a6 11.0–0+=; 7...Be6 8.d4 e4 9.Nd2 d5 10.cd5 Ned5 11.Nde4=; 7...Nf5 8.d4 ed4 9.ed4 d5 10.c5 b6 11.cb6+=; 7...c6 8.Be2 a6 9.0–0 ab5 10.cb5 Be6 11.Qc2=) 8.Be2 a6 9.0–0 ab5 10.cb5 Ng6 11.a4=) 7...ed4 (7...e4 8.Nfd2 Bf5 9.Nc3 d5 10.Rb1 dc4 11.Qc2=) 8.Nd4 Ng6 (8...Bg4 9.Be2 Be2 10.Qe2 a6 11.0–0+=) 9.Be2 Be7 10.0–0 0–0 11.Nd2 (11.Nc3+=) 11...Nd7 12.Ne4 f5?? (better is 12...Re8+=) 13.Ne6+– fe4 14.Nd8 Bd8 15.Qd5 Kh7 16.Qe4 Nc5 17.Qc2 Bf5 18.Qd1 Bf6 19.Bd4 b6 (19...Rae8 20.Qd2+–) 20.a4 Rae8 (20...a5 21.Bf3 Rae8 22.Bd5+–) 21.Ra3 Ne6 22.Bf6 Rf6 23.a5 Nc5 24.ab6 ab6 25.Ra7 Re7 26.g4 (26.Qd4 Ne5+–) 26...Be6 27.f4 Bf7 28.g5 hg5 29.fg5 Rfe6 30.Rf3 Re5 31.Rh3 Kg8 32.Ra8 Be8 (32...Re8 33.Re8 Be8 34.Rg3+–) 33.Bd3 (33.Bh5!? Ne4+–) 33...Rg5 34.Rg3 Rg3 35.hg3 Nd3 (35...Ne5 36.Bf1+–) 36.Qd3 Ne5 37.Qf5 Nf7 38.Rc8 Re3 39.Rc7 Rg3 40.Kf2 Rg5 41.Qc8 Kf8 42.Qb7 Rf5 43.Kg3 d5 (43...Rg5 44.Kf4 Rg6 45.Qb6+–) 44.Qb6 dc4 45.Qe6 g6 46.Qe7 Kg7 47.Qe8 c3 48.Rc3 (48.b6 Rg5 49.Kf3 Rf5 50.Ke3 c2+–) 48...Kh6 (48...Rg5 49.Kf2 Re5+–) 49.Qf8 Kg5 50.Rc5 Nh6 51.Qe7 1–0. Meulner,Klaus – Zollstab,Juergen, Regionalliga NO, 2000.

4.Nf3 Be6

5.Qc2 Nc6 6.b5 Na5 7.e3 Nc4?? 8.Bc4+– Bc4 9.Qc4 Be7 (9...d5 10.Qh4 e4 11.Bf6 Qf6 12.Qf6 gf6+–) 10.0–0 (10.e4 a6 11.0–0 ab5 12.Qb5 Qd7+–) 10...0–0 (10...d5 11.Qc2 e4 12.Nd4 0–0+–) 11.Rc1 (11.e4 Qd7 12.Rc1 c6+–) 11...Rc8 12.Nc3 (12.d3 c6+–) 12...c5 (12...d5+–) 13.e4 b6 14.a4 Qd7 15.a5 ba5 16.Ra5 Rb8 17.Rca1 Rb7 18.Ra6 Bd8 19.Rc6 Bb6 20.Nh4 Rc7 (20...g6 21.Nf3+–) 21.Nf5 Rc6 22.bc6 Qc7 (22...Qd8 23.Nb5 Ne8 24.Qd5+– (worse is 24.Na7 g6 25.Ne3 Ba7 26.Ra7 Qb6+–)) 23.Nb5 (23.Nb5 Qd8 24.Nbd6+–) 1–0. wiking – elche, queenalice.com, 2009. (=1.Nf3 Nf6 2.b4 d6 3.Bb2 e5 4.c4 Be6)

5.e3 Nbd7 6.Be2 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be6 5.Nf3 Nbd7 6.Be2).

5.e3 Be7 6.Be2 0–0 7.0–0 h6 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 0–0 6.Be2 h6 7.0–0 Be6).

5.e3 g6 6.Be2 Bg7 7.0–0 0–0 (---> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 Be6).

5.Qc2 Be7

6.d3 0–0 7.Nbd2 Nbd7 8.g3 b6 (8...a5!?+=) 9.Bg2= Rc8 10.0–0 c5 11.b5 d5 (11...Qc7!?+=) 12.Ne5+/– Ne5 13.Be5 dc4 14.Nc4 Bd5 15.e4 Bb7 16.a4 Nd7 17.Bc3 Bf6 18.Nd6 Rb8? (better is 18...Bc3 19.Qc3 Rc7+/–) 19.Nb7+– Rb7 (19...Qc7 20.Bf6 gf6 21.Nc5 bc5 22.Bh3+–) 20.e5 Rc7 21.ef6 Nf6 22.a5 Rd7 23.ab6 ab6 24.Rfe1 (24.Ra8 Qe7 25.Re1 Qd6+–) 24...Rd3 (24...Nd5 25.Bb2+–) 25.Ra8 Qd7 (25...Qd6 26.Rea1 Nd7 27.Be4+–) 26.Rf8 Kf8 27.Bc6 Qh3 (27...Rc3 28.Qc3 Qd4 29.Qd4 cd4+–) 28.Qd3 1–0. Janek – vorop, internet, 2016.

6.d4 e4 7.d5 ef3 8.de6 fe6 9.gf3 Nbd7 10.Bh3 e5 11.Rg1 c5 12.Rg7 Qc7 13.Bd7+– Nd7 14.Qf5 Rf8 15.Qh7 (15...Bf6 16.Qg6 Kd8 17.Rf7 Rf7 18.Qf7+–) 1–0. mrkt – cejoriv, ChessWorld.net, 2004.

6.e3 Nbd7 7.Ng5 0–0 8.Nc3 d5 (better is 8...a5!? 9.b5 Nc5=) 9.cd5+/– Bd5?? (better is 9...Bg4 10.Bd3 h6+/–) 10.Nd5+– Nd5 (10...h6 11.h4 Bd6+–) 11.Qh7# 1–0. Janek – Santiago, internet, 2016.

4.Nf3 Be7

5.a3 0–0 (5...a5 A) 6.Qa4 Nbd7 7.Qc2 (7.d4 e4 8.Nfd2 0–0 9.ba5 e3 10.fe3+=) 7...ab4 8.ab4 Ra1 9.Ba1 Nb6 10.e4+=; B) 6.b5 0–0 (6...e4 7.Nd4 0–0 8.Nc3 Nbd7 9.e3 Nc5 10.d3=) 7.d4 (7.Nc3 Bg4 8.e4 Nbd7 9.h3 Bh5 10.Be2+=; 7.d3 Nbd7 8.e3 Nc5 9.Be2 e4 10.de4=) 7...ed4 8.Bd4 c5 9.Bc3 d5 10.e3=) 6.Nc3 c6 (6...a5 7.e3+= (7.e4 Bg4 8.b5 Nbd7 9.h3 Bf3 10.Qf3=) 7...Re8 8.b5 Nbd7 9.Be2 Rb8 10.0–0+=; 6...Bf5 7.e3 (7.d3 Bg4 8.e3 a5 9.Be2 ab4 10.ab4=) 7...a5 8.b5 e4 9.Nd4 Bg6 10.d3=; 6...Nc6 7.e3 Bg4 8.Be2 e4 9.Ng5 Ne5 10.f3=) 7.e3 (7.e4 a5+= 8.b5 Re8 9.Be2 cb5 10.cb5=) 7...Bg4 (7...e4 8.Nd4= c5 9.Nc2 Nc6 10.d3=; 7...a5 8.b5 Nbd7 9.d4 Re8 10.Bd3=) 8.Be2 Nbd7 (8...a5 9.b5 Nbd7 10.h3=) 9.0–0 Re8 (9...Bf5 10.d4=; 9...d5 10.d3=) 10.Qc2+= (10.d4=) 10...Bh5 11.d4 Qc7 12.Rfe1 Rac8 13.Rad1 a6 14.de5 de5 15.c5 Nf8 (15...a5!?+=) 16.Ne4+/– Ne4 (16...Bf3!? 17.Bf3 Rcd8+/–) 17.Be5+– (17.Qe4?! Bf6+=) 17...Nf2? (better is 17...Bh4 18.Bc7 Bf2 19.Kf1 Rc7+–) 18.Bc7 (18.Kf2?! Bh4 19.g3 Re5 20.Ne5 Qe5 21.Bh5 Qh5 22.gh4 Qh4 23.Kg1 Re8+=) 18...Nd1 19.Bf4 (19.Qd1?! Rc7 20.Nd4 Bg6+/–; 19.Rd1?! Rc7 20.Qc4 Bf6+–; 19.Bd1?! Rc7 20.Qc4 Bf3 21.gf3 Rd7+/–) 19...Ne3 20.Be3 Bg6 (20...Bf6 21.Bd3+–) 21.Qc4 (better is 21.Qc1+–) 21...Bh4 (21...Bf6 22.Bg5 Bg5 23.Ng5 Re7+–) 22.Qh4 Re3 23.Bc4 Rce8 (23...Rc3 24.Qd4 Rc4 25.Qc4+–) 24.Re3 Re3 25.Qf4 Re7 26.Qb8 h6 (26...Be4 27.Ne5 Bg6 28.Qd6+–) 27.Ne5 Be4 (27...Bh5 28.h3+–) 28.Bf7 Rf7 29.Nf7 Kf7 30.Qf4 (30.Qf4 Ke7 31.Qe4 Ne6 32.Qg6+–) 1–0. marre – cotii, internet, 2010.

5.Nc3 a5 A) 6.Qa4 Nbd7 (6...Bd7 7.b5 0–0 8.d4 ed4 9.Nd4 Na6 10.Nb3=) 7.ba5 0–0 8.e4 Nc5 9.Qc2 Bg4 10.d4+=; B) 6.ba5 0–0 (6...Nbd7 7.d4 0–0 8.e3 Ra5 9.Be2 Re8 10.0–0=; 6...Ra5 7.e4 0–0 8.Be2 Bg4 9.d4 Nc6 10.d5=; 6...Nc6 7.e4 Be6 8.c5 Ra5 9.Bb5 Qd7 10.d4=; 6...Bd7 7.e4 Ra5 8.Be2 Nc6 9.0–0 Bg4 10.Nd5=) 7.e4 Nc6 8.Be2 Bg4 9.h3 Bf3 10.Bf3+=; C) 6.b5 0–0 (6...Nbd7 7.e3 Nb6 8.d4 ed4 9.Nd4 a4 10.Bd3=; 6...Be6 7.e4 Nbd7 8.d4 0–0 9.Be2 a4 10.0–0=; 6...Bg4 7.e4 a4 8.Be2 a3 9.Bc1 Nbd7 10.0–0=) 7.e4 a4 8.Be2 Nbd7 9.0–0 Nc5 10.d4=.

5.Nc3 Na6 A) 6.a3 Qd7 (6...c5 7.bc5 Nc5 8.d4 ed4 9.Nd4 0–0 10.e3=; 6...0–0 7.d4 ed4 8.Qd4 c5 9.bc5 dc5 10.Qd8=; 6...Be6 7.e4 c5 8.b5 Nc7 9.Be2 Nd7 10.0–0=; 6...Bg4 7.e4 0–0 8.Be2 c5 9.b5 Nc7 10.0–0=; 6...c6 7.e4 0–0 8.Be2 c5 9.b5 Nc7 10.0–0=; 6...Bf5 7.d4 e4 8.Qc2 c6 9.d5 Qb6 10.e3=) 7.e4 c5 8.b5 Nc7 9.Rb1 Ne6 10.h3=; B) 6.Qb3 c5 (6...0–0 7.e4 c6 8.Be2 Nh5 9.0–0 Nf4 10.Rfd1=; 6...Bg4 7.h3 Bd7 8.e4 0–0 9.a3 c5 10.b5+=; 6...e4 7.Ng5 Bf5 8.d3 ed3 9.e4 d2 10.Kd2=; 6...Bf5 7.d4 e4 8.Nd2 c6 9.e3 Nc7 10.Be2=; 6...c6 7.e4 Bg4 8.Be2 Qb6 9.a3 Nc5 10.Qc2=; 6...Qd7 7.e4 Qg4 8.h3 Qg6 9.Nh4 Qh6 10.Nf3=) 7.b5 Nc7 8.e3 Bf5 9.d4 cd4 10.ed4+=; C) 6.Nd5 0–0 (6...Be6 7.Ne7 Qe7 8.Qa4 Qd7 9.Qb3 c5 10.b5=; 6...Nd5 7.cd5 0–0 8.b5 Nb8 9.d4 e4 10.Nd2=; 6...Bg4 7.Ne7 Qe7 8.Qa4 c6 9.d4 Bf3 10.gf3+=; 6...e4 7.Ne7 Qe7 8.Nd4 0–0 9.a3 c5 10.b5+=; 6...Bf5 7.Ne7 Qe7 8.Qa4 Bd7 9.Qa5 c5 10.a3=) 7.a3 e4 8.Ne7 Qe7 9.Nd4 c5 10.b5+=; D) 6.Qa4 Bd7 (6...c6 7.e4 Bg4 8.Be2 0–0 9.0–0 Qb6 10.a3=; 6...Qd7 7.Qd7 Bd7 8.a3 c5 9.bc5 Nc5 10.d4=) 7.Qb3 0–0 8.e4 c6 9.Be2 Qb6 10.a3=; E) 6.b5 Nc5 7.e3 e4 8.Nd4 Rb8 9.Be2 d5 10.0–0=.

5.Nc3 Nc6 A) 6.a3 Bg4 (6...Bf5 7.e3 0–0 8.d4 ed4 9.Nd4 Nd4 10.Qd4=; 6...e4 7.Ng5 a5 8.Nce4 h6 9.b5 hg5 10.Nf6=; 6...0–0 7.e4 Nd4 8.Nd4 ed4 9.Nd5 Ne4 10.Bd4+=; 6...Be6 7.e4 0–0 8.d4 Bg4 9.de5 Ne5 10.Be2=; 6...Qd7 7.d4 e4 8.Nd2 Nd4 9.Nd5 Nd5 10.cd5=; 6...h6 7.e4 Bg4 8.h3 Bf3 9.Qf3 a5 10.b5=) 7.b5 Na5 8.Qa4 c6 9.bc6 Nc6 10.h3+=; B) 6.Qa4 Bg4 (6...0–0 7.b5 Nb8 8.e4 Bg4 9.Be2 Nbd7 10.0–0=; 6...Bf5 7.b5 Nb8 8.d4 Nbd7 9.de5 de5 10.Rd1+=; 6...Be6 7.e3 Nd7 8.Nd5 Nb6 9.Qb3 e4 10.Nd4=; 6...e4 7.Nd4 Bd7 8.Nc6 bc6 9.Qa5 0–0 10.e3=; 6...a6 7.b5 Na7 8.e4 ab5 9.cb5 Bg4 10.Be2=; 6...Bd7 7.b5 Nb8 8.e3 Bf5 9.d4 Nbd7 10.Be2=) 7.b5 Bf3 8.e3 a6 9.gf3 ab5 10.Qb5+=; C) 6.b5 Nd4 (6...Nb8 7.e4 Bg4 8.Be2 Nbd7 9.d4 0–0 10.0–0=; 6...Na5 7.e4 Bg4 8.d4 ed4 9.Qd4 Bf3 10.gf3=) 7.Nd4 ed4 8.Nd5 Nd5 9.cd5 Bf6 10.Qa4=.

5.Nc3 Be6 A) 6.e4 Nc6 (6...a5 7.b5 Nbd7 8.Ng5 Nc5 9.Be2 Bd7 10.d4=; 6...0–0 7.d4 a5 8.b5 Nbd7 9.Be2 a4 10.0–0=; 6...Na6 7.a3 c5 8.b5 Nc7 9.Be2 Nd7 10.0–0=; 6...Bg4 7.Be2 Nc6 8.b5 Bf3 9.Bf3 Nd4 10.0–0=; 6...Nbd7 7.d4 0–0 8.a3 c5 9.d5 Bg4 10.Be2=; 6...Bd7 7.Be2 Nc6 8.b5 Nd4 9.Nd4 ed4 10.Nd5=) 7.b5 Nd4 8.Nd4 ed4 9.Ne2 d3 10.Nf4=; B) 6.Qa4 Qd7 (6...Bd7 7.b5 Na6 8.e3 Nc5 9.Qd1 0–0 10.d4=; 6...Nc6 7.b5 Nb8 8.d4 Nbd7 9.de5 de5 10.Rd1=; 6...Nbd7 7.e4 a5 8.ba5 0–0 9.Be2 Nc5 10.Qc2=) 7.Qd7 Nbd7 8.e4 Nb6 9.Nd5 Nbd5 10.ed5+=; C) 6.e3 Nbd7 (6...0–0 7.d4 e4 8.d5 Bg4 9.h3 Bh5 10.g4+=; 6...Bf5 7.d4 e4 8.Qc2 d5 9.a3 c6 10.Ne5=; 6...a5 7.ba5 0–0 8.d4 Nbd7 9.Qb3 ed4 10.ed4=; 6...Na6 7.b5 Nb8 8.d4 Nbd7 9.Bd3 a6 10.ba6=; 6...Bg4 7.Be2 0–0 8.0–0 e4 9.Ng5 Be2 10.Qe2+=; 6...Nc6 7.b5 Na5 8.Qa4 c6 9.bc6 Nc6 10.d4=) 7.Ng5 Bg4 8.f3 Bf5 9.a3 Bg6 10.d4=; D) 6.d3 c6 (6...0–0 7.e3 Nbd7 8.Be2 a5 9.b5 Nc5 10.0–0=; 6...Na6 7.a3 0–0 8.e3 c5 9.b5 Nc7 10.Be2=; 6...Nbd7 7.e4 c5 8.bc5 Nc5 9.Be2 Rc8 10.0–0=; 6...Nc6 7.b5 Na5 8.Qa4 c6 9.e4 a6 10.bc6=; 6...a6 7.e4 Bg4 8.Be2 Nc6 9.a3 Bf3 10.Bf3=; 6...a5 7.b5 Bg4 8.e3 a4 9.Na4 c6 10.Nc3+=) 7.e4 Nbd7 8.d4 0–0 9.h3 ed4 10.Nd4=.

5.Nc3 Bf5 A) 6.d4 Nbd7 (6...0–0 7.e3 e4 8.Qc2 Nc6 9.a3 Re8 10.Nd2+=; 6...e4 7.Qc2 Nc6 8.Nh4 Bd7 9.Ne4 Nb4 10.Nf6+=) 7.Nh4 Bg4 8.h3 ed4 9.Qd4 Be6 10.Nf3+=; B) 6.e3 0–0 (6...a5 7.b5 Qd7 8.Be2 0–0 9.0–0 c6 10.d4=; 6...Nbd7 7.Be2 c5 8.a3 e4 9.Ng1 0–0 10.g4=; 6...a6 7.d4 0–0 8.a3 a5 9.de5 de5 10.Qd8=; 6...Nc6 7.b5 Nb4 8.d3 d5 9.cd5 Nbd5 10.Ne5+=; 6...Qd7 7.d4 e4 8.Nd2 0–0 9.d5 Na6 10.a3=; 6...c6 7.Be2 a5 8.b5 0–0 9.0–0 Nbd7 10.d4=) 7.Be2 e4 8.Nd4 Bg6 9.0–0 c5 10.Nc2=; C) 6.d3 Bg4 (6...0–0 7.e4 Bg4 8.Be2 Nc6 9.b5 Bf3 10.Bf3=; 6...a5 7.b5 0–0 8.e4 Be6 9.Be2 Nbd7 10.Ng5=; 6...Be6 7.e4 a5 8.b5 Nbd7 9.Be2 Nc5 10.0–0=) 7.h3 Bf3 8.gf3 0–0 9.Bg2 d5 10.f4=; D) 6.Qa4 Bd7 (6...Nc6 7.b5 Nb8 8.d4 Nbd7 9.de5 de5 10.Rd1+=; 6...c6 7.e3 Nbd7 8.d4 e4 9.Nd2 0–0 10.Be2+=; 6...Nbd7 7.d4 0–0 8.e3 Bg4 9.Be2 e4 10.Nd2=; 6...Qd7 7.Qd7 Nbd7 8.Nb5 Bd8 9.d4 a6 10.Nc3=) 7.Qd1 0–0 8.e4 Nc6 9.b5 Nd4 10.Nd4+=; E) 6.b5 a6 (6...0–0 7.d3 Re8 8.e4 Bg4 9.Be2 a6 10.0–0=; 6...Nbd7 7.d3 Be6 8.Ng5 Bg4 9.h3 Bh5 10.g4=; 6...c5 7.d3 0–0 8.e4 Be6 9.Be2 a6 10.ba6=; 6...c6 7.d3 Bg4 8.d4 e4 9.h3 Bf5 10.Qc2+=; 6...a5 7.e3 c6 8.Be2 0–0 9.0–0 Nbd7 10.d3=; 6...h6 7.d3 Bg4 8.e4 Nbd7 9.Be2 0–0 10.0–0=) 7.d3 Bg4 8.d4 e4 9.Ng5 ab5 10.Qb3+=; F) 6.Nd5 Nd5 (6...0–0 7.Ne7 Qe7 8.e3 a5 9.b5 a4 10.a3+=; 6...a5 7.Ne7 Qe7 8.b5 0–0 9.e3 a4 10.a3+=) 7.cd5 0–0 8.d3 c6 9.e4 Bg4 10.dc6+=; G) 6.a3 0–0 (6...a5 7.b5 0–0 8.e3 c6 9.Be2 cb5 10.Nb5=; 6...Nc6 7.e3 0–0 8.d4 ed4 9.Nd4 Nd4 10.Qd4=; 6...Qd7 7.d3 a5 8.e4 ab4 9.ab4 Ra1 10.Qa1=; 6...Nbd7 7.d3 a5 8.e4 ab4 9.ab4 Ra1 10.Ba1=; 6...c6 7.d3 a5 8.b5 0–0 9.e4 Bg6 10.Be2=) 7.e3 Nbd7 8.Be2 c5 9.0–0 e4 10.Ne1=.

5.Nc3 Bg4 A) 6.h3 Bf3 (6...Be6 7.e4 Nc6 8.b5 Nd4 9.Nd4 ed4 10.Ne2+=; 6...Bf5 7.d4 e4 8.g4 Be6 9.g5 ef3 10.gf6+=; 6...Bd7 7.e4 0–0 8.Be2 Nc6 9.a3 Nd4 10.0–0=) 7.gf3 0–0 8.Rg1 Nbd7 9.Bg2 c6 10.a3+=; B) 6.Qa4 c6 (6...Nbd7 7.h3 Bf3 8.gf3 0–0 9.Rg1 a5 10.ba5+=; 6...Nc6 7.b5 Bf3 8.ef3 Nd4 9.Bd3 a6 10.b6+=; 6...Bd7 7.Qc2 0–0 8.e4 Bg4 9.Be2 a5 10.b5=; 6...Qd7 7.Qd7 Nbd7 8.h3 Bf3 9.gf3 a5 10.b5=) 7.h3 Bf3 8.ef3 0–0 9.Bd3 Nbd7 10.0–0+=; C) 6.a3 Nc6 (6...a5 7.b5 Nbd7 8.h3 Be6 9.e4 0–0 10.d4=; 6...0–0 7.d4 Nbd7 8.e3 a5 9.h3 Bh5 10.g4+=; 6...Nbd7 7.e4 a5 8.Be2 ab4 9.ab4 Ra1 10.Ba1=; 6...Bf5 7.d4 Nbd7 8.e4 Ne4 9.Ne4 Be4 10.de5=) 7.b5 Na5 8.Qa4 c6 9.h3 cb5 10.cb5+=; D) 6.e4 Nc6 (6...0–0 7.Be2 a6 8.0–0 Nc6 9.a3 Qd7 10.Nd5=; 6...a5 7.b5 0–0 8.Be2 Nbd7 9.d4 Re8 10.0–0=) 7.b5 Nd4 8.Be2 Ne2 9.Qe2 a6 10.h3+=; E) 6.b5 a6 (6...Nbd7 7.d4 a6 8.e4 Bf3 9.gf3 c5 10.bc6=; 6...0–0 7.e4 Nbd7 8.Be2 a6 9.d4 ab5 10.cb5=; 6...Bf5 7.d3 0–0 8.e4 Be6 9.d4 Nbd7 10.Be2=; 6...c5 7.e4 0–0 8.Be2 a6 9.0–0 ab5 10.cb5=; 6...Rg8 7.h3 Bf3 8.ef3 a6 9.d4 ed4 10.Qd4=; 6...Rf8 7.h3 Bf5 8.d3 Be6 9.e4 Nbd7 10.Be2=) 7.e4 ab5 8.cb5 d5 9.h3 Bf3 10.Qf3+=; F) 6.Nd5 0–0 (6...Nd5 7.cd5 0–0 8.d4 Bf3 9.gf3 c6 10.a3+=; 6...Nbd7 7.d4 Nd5 8.cd5 e4 9.Nd2 Nf6 10.Qb3+=; 6...a5 7.Qa4 Nc6 8.Ne7 Qe7 9.b5 Bf3 10.gf3=; 6...a6 7.d4 Nd5 8.cd5 Nd7 9.Qc2 Bf3 10.ef3=; 6...c6 7.Nf6 Bf6 8.e4 Qb6 9.Bc3 Nd7 10.Be2=; 6...Na6 7.a3 0–0 8.Nf6 Bf6 9.e4 c5 10.b5=) 7.Ne7 Qe7 8.Qb3 a5 9.b5 Re8 10.Qe3+=; G) 6.e3 Bf5 (6...0–0 7.Be2 Nbd7 8.0–0 c6 9.h3 Bh5 10.d3=; 6...Nbd7 7.h3 Bh5 8.g4 Bg6 9.Nh4 0–0 10.Ng6=; 6...Nc6 7.b5 Na5 8.h3 Bh5 9.g4 Bg6 10.Nh4=; 6...a5 7.b5 a4 8.Rb1 a3 9.Ba1 Nbd7 10.Be2=; 6...e4 7.h3 Bf5 8.g4 Bd7 9.Ng5 Na6 10.a3+=; 6...c6 7.h3 Bh5 8.g4 Bg6 9.d4 e4 10.Nh4=) 7.d4 e4 8.Qc2 d5 9.b5 c6 10.bc6=.

5.c4 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3).

5.d3 0–0 6.e4 Bg4 7.Be2 Nbd7 8.a4 c6 9.0–0 d5 10.cd5 cd5 11.Ne5 Be2 12.Qe2 Ne5 13.Be5= Bb4 14.Bc3 Bc3= 15.Nc3 de4 16.Ne4 Ne4 17.Qe4 Re8 18.Qb7 Qd3 ˝–˝. hal1958 – King_Slayer, playchess.de, 2003.

5.d3 c6 6.e3 a5 7.a3 0–0 8.Be2 Re8 9.0–0= Na6 10.ba5 Bg4 11.Nbd2 Qa5 12.h3 Bf5 13.d4 e4=+ 14.Ne1 d5 15.c5 Bg6 16.Nb3 Qc7 17.Nc2 b6=+ 18.cb6 Qb6–/+ 19.Ba6? Ra6?? 20.Nb4=+ Bb4 21.ab4 Ra1 22.Qa1 Qb4 23.Nc5 Qb8 24.Rb1 Qc8 25.Qa7 h5 26.Ba3 h4 27.Rb7 Qf5 28.Re7 Rf8 29.Qc7 Qh5 30.Qc6 Qd1=+ 31.Kh2 Qa1 32.Ra7+/– Qa2 33.Nd7 Nd7= 34.Qd7 Qf2 35.Bf8 Qg3 36.Kh1 Qe1 37.Kh2 Qg3 38.Kh1 Qe3?? 39.Bc5 Qe1= 40.Kh2 Qg3 41.Kg1 e3?? 42.Qg4?? Qf2+/– 43.Kh2 e2 44.Ra8 Kh7 (44...Kh7 45.Bb4 e1Q 46.Be1 Qe1+/–). revbodio – JadeFox, Live Game Caissa's Web, 2006.

5.d4 e4 6.Nfd2 0–0 =+.

6.e4 Re8 (6...a5 7.b5 Nbd7 8.d4 c5 9.de5 de5 10.Bd3=; 6...Nc6 7.a3 Bg4 8.Be2 Rb8 9.0–0 Re8 10.b5=; 6...Nbd7 7.Be2 a5 8.a3 Re8 9.0–0 c5 10.b5=) 7.Be2 Nc6 8.a3 Nd4 9.0–0 c6 10.Nd4=.

5.g3 Be6 6.Qa4 Qd7 7.b5 =+.

5.Nc3 0–0

6.a3 Nc6 (6...Bf5 7.e3 a5 8.b5 Qd7 9.Be2 e4 10.Nd4+=; 6...Bg4 7.d4 Nbd7 8.e3 a5 9.h3 Bh5 10.g4+=; 6...a5 7.b5 Be6 8.e4 Nbd7 9.d4 Qe8 10.Be2=; 6...Be6 7.e4 a5 8.d4 ab4 9.ab4 Ra1 10.Ba1=; 6...Re8 7.d4 ed4 8.Nd4 Nbd7 9.e3 Nb6 10.Be2=; 6...Na6 7.e4 c5 8.b5 Nc7 9.Be2 a6 10.ba6=) 7.e4 a5 8.b5 Nd4 9.Nd4 ed4 10.Nd5+=.

6.Qb3 e4 (6...Bg4 7.d4 Bf3 8.de5 de5 9.Rd1 Qe8 10.ef3+=; 6...a5 7.b5 Bg4 8.h3 Be6 9.d4 ed4 10.Nd4+=; 6...Bd7 7.d4 ed4 8.Nd4 Na6 9.Nd5 c5 10.Ne7+=; 6...Bf5 7.e3 Nc6 8.b5 Na5 9.Qa4 c5 10.bc6+=; 6...Be6 7.d4 e4 8.d5 ef3 9.de6 fe6 10.ef3+=; 6...Nc6 7.b5 Na5 8.Qa4 c5 9.bc6 Nc6 10.e4+=) 7.Ng5 Bf5 8.d3 ed3 9.e4 d2 10.Kd2+=.

6.b5 Re8 (6...Bf5 7.d3 Nbd7 8.e4 Be6 9.d4 ed4 10.Nd4=; 6...Nbd7 7.d4 a6 8.e4 c5 9.bc6 bc6 10.Rb1=; 6...a6 7.e4 Re8 8.Qc2 Nbd7 9.Be2 ab5 10.cb5=; 6...Bg4 7.e4 Nbd7 8.Be2 a6 9.d4 ab5 10.cb5=; 6...Be6 7.e4 Nbd7 8.d4 ed4 9.Nd4 Nc5 10.Bd3=; 6...a5 7.e3 Nbd7 8.Be2 c6 9.0–0 cb5 10.Nb5+=) 7.e4 a6 8.Be2 ab5 9.cb5 d5 10.ed5+=.

6.Qc2 Be6 7.e3 Nbd7 8.Be2 a6 (8...a5 9.b5=) 9.0–0 c5 (9...h6 10.d4+=) 10.b5 (10.bc5!? dc5 11.Ng5+/–) 10...Nb6 (10...ab5 11.Nb5 h6 12.d3=) 11.d3 (11.Ng5 Bd7 (11...Bc4? 12.Bc4 Nc4 13.Nd5+–) 12.f4 h6 13.fe5 hg5 14.ef6 Bf6=) 11...Rb8 (11...ab5 12.Nb5 Na4 13.Bc1=) 12.a4+= a5 13.h3 Qd7 14.Ng5 h6 15.Ne6 Qe6 (15...fe6 16.Ne4+/–) 16.e4 Qd7 17.f4 (17.Bf3!?+/–) 17...ef4+= 18.Rf4 Qe6 (18...Qc7 19.Raf1+=) 19.Nd1 Nfd7 20.Bg4 Qg6 21.Bf5 Qh5 22.Qf2 (22.Ne3 Ne5 23.Bg4 Qg5+/–) 22...g6 (22...Ne5!? 23.Bg4 Qg6+=) 23.Bg4+/– Qg5 24.Ne3 Ne5 25.Be2 h5 26.h4 Qh6 27.Qg3 (27.d4 cd4 28.Bd4 Nbd7+/–) 27...Qg7 28.d4 (28.Ra2!?+/–) 28...cd4= 29.Nc2 (29.Bd4 Nf3 A) 30.gf3? Qd4 31.Ra3 Qb2–+; B) 30.Bf3 Qd4 31.Ra3 d5 (31...Nc4 32.e5 Qb2 33.Nc4 Qc1 34.Kh2 de5 35.Ne5+–) 32.ed5 Qe5–+; C) worse is 30.Rf3 Qd4 31.Raf1 Na4–/+; D) 30.Qf3 Qd4 31.Rf1=) 29...Bf6–/+ 30.Raf1 (30.Bd4?? Nf3! 31.Rf3 Bd4 32.Kf1 Ba1 33.Qd6 Na8–+ (worse is 33...Na4 34.Qa3–+)) 30...Nbd7 (30...d3!? 31.Bd3 Na4–/+) 31.Kh1 Rbc8 (31...Nc5 A) 32.Rf6? Ne4 33.Qf4 A1) 33...Qf6? 34.Qe4 (worse is 34.Qf6 Nf6 35.Rf6 d3 36.Be5 dc2–+) 34...Qd8 35.Qd4+–; A2) 33...Nf6 34.Bd4 Nfd7–+; B) 32.Bd4 Be7 33.Bc5 dc5 34.Ne3=) 32.Bd4+= Kh7 33.Ne3 Kg8 (better is 33...Bd8!?+=) 34.Nd5+– Ng4?? (better is 34...Bd8 35.Qh3 Rb8+/–) 35.Nf6 Ndf6 (35...Ngf6 36.Bf6 Nf6 37.Rf6+–) 36.Bg4 hg4 37.Bf6 Qh7 38.Rg4 Rfe8 (38...Qh5 39.Rf5 Qh6 40.Be7+–) 39.h5 (39.h5 Re6 40.Rh4+–) 1–0. Vekemans,Denis (1980) – Brugge,Rodolphe, La Fere FRA, 2012.

6.d3 d5 (6...a5 7.b5 Be6 8.e4 Ng4 9.Be2 f5 10.0–0=; 6...Be6 7.e4 Na6 8.a3 c5 9.b5 Nc7 10.Be2=; 6...Re8 7.e3 a5 8.b5 d5 9.cd5 Nd5 10.Qd2=; 6...Bg4 7.a3 Nbd7 8.e4 Re8 9.Be2 c6 10.0–0=; 6...Nbd7 7.e3 a5 8.b5 Nc5 9.Be2 a4 10.d4=; 6...c6 7.e3 Be6 8.Be2 Qb6 9.a3 Nbd7 10.0–0=) 7.cd5 Bb4 8.e4 c6 9.Ne5 cd5 10.Qa4–/+.

6.d4 Nc6 (6...Bf5 7.de5 de5 8.Qb3 a5 9.Rd1 Nbd7 10.Ne5+=; 6...ed4 7.Nd4 Na6 8.a3 c5 9.Nc2 Qb6 10.b5=; 6...e4 7.Nd2 d5 8.a3 c6 9.e3 Bf5 10.cd5=; 6...Re8 7.de5 de5 8.Qd8 Rd8 9.Ne5 Bb4 10.Rd1+=; 6...a5 7.b5 Nbd7 8.e4 ed4 9.Qd4 Nc5 10.Be2=; 6...Bd7 7.de5 de5 8.Ne5 Bb4 9.Qb3 Qe7 10.a3+=) 7.a3 a5 8.de5 Ne5 9.e3 Re8 10.Be2+=.

6.e4 Nc6 7.a3 Bg4 (7...Re8 8.Be2=) 8.Be2= Qd7 9.0–0 Nd4? (better is 9...Bf3!? 10.Bf3 a5=) 10.Nd4+/– ed4 11.Bg4 Qg4 12.Qg4 Ng4 13.Nd5 Bg5 (13...Bd8 14.Bd4 Re8 15.d3+–) 14.f4 (14.Nc7 Rac8 15.Nd5 f5+–) 14...Bd8 15.Bd4 Re8 16.Rfe1 c6 17.Nc3 Nf6 18.Kf2 a5 19.Kf3 ab4 (19...Nd7 20.Reb1+–) 20.ab4 Ra1 (20...Be7 21.g4+–) 21.Ra1 Nd7 22.Ra7 Nb6 (22...Re7 23.b5+–) 23.d3 d5 (23...Nd7+–) 24.ed5 (worse is 24.Rb7 de4 25.Ne4 Nc8+–) 24...cd5 25.c5 Nc8 26.Rb7 Kf8 (26...Ne7 27.Bf2+–) 27.c6 (27.c6 g5 28.Nd5+–) 1–0. market (2030) – sousse (1990), GameColony.com, 2002.

6.g3 b6 (6...Be6!?–/+ 7.e4 Nc6 8.a3 Nd4 9.Nd4 ed4 10.Ne2+=; 6...a5 7.b5 Be6 8.d3 Nbd7 9.Bg2 Ra7 10.0–0=; 6...e4 7.Ng5 Nfd7 8.f4 Bg5 9.fg5 Ne5 10.Ne4–/+; 6...a6 7.Bg2 Be6 8.Ng5 Bc4 9.Bb7 Ra7 10.Bg2=) 7.Bg2= Bb7 (7...c6 8.0–0 Be6 9.d3 Qc7 10.Ng5=) 8.0–0 Nbd7 (8...e4 9.Ng5 d5 10.cd5+=) 9.d3 (9.a3 Re8 10.d4=) 9...Ne8 (9...c6 10.a3=) 10.e4 (10.a3 Nef6+=) 10...f5 11.Nd2 (11.ef5 Rf5 12.Re1 a5+=) 11...f4 12.Nd5 fg3 13.fg3 Rf1 14.Qf1 Bd5 (14...c6 15.Ne3=) 15.ed5 Nef6 16.Qf5 Nf8 17.Rf1 Qd7 18.Qd7 N8d7 19.Bh3 a5 20.a3 ab4 21.ab4 Ra2 22.Rb1 g5 23.Bf5 Nb8 24.b5 Nbd7 25.Nb3 Nf8 26.Nc1 Ra4 27.Ra1 Ra1 28.Ba1 g4 (28...Kf7 29.d4 N8d7 30.h3+=) 29.Kf2 (29.d4 ed4 30.Bd4 h5+/–) 29...Kg7 (29...N8d7 30.h4+=) 30.Bc3 (30.d4 N8d7+/–) 30...h5 31.Na2 N6d7 32.Nb4 Kf6 33.Be4 Nc5 34.Bg2 Kf5 35.Ke2 Bg5 36.Na6 Bd8 37.Nc5 bc5 38.Be4 Kf6 39.Ba5 Nd7 40.Bh7 (40.Bd2 Be7+=) 40...Nb6 (40...Nf8 41.Be4=) 41.Bg8 Kg7 42.Be6 Bg5 43.Kf2 Kf6 44.h3 gh3 45.Bh3 Kg6 46.Kf3 Bd8 47.Ke4 Bg5 48.Bc3 Kf6 49.Bg2 Na4 50.Be1 Bc1 51.Bf3 Kg5 52.Be2 Bb2? (better is 52...Nb6!?+=) 53.Ba5 (53.Bd2 Kf6 54.Bh5 Bc3+–) 53...Nb6 (53...Nc3 54.Kf3 Ne2 55.Ke2+–) 54.Bd2 Kg6 55.Kf3?? (better is 55.Bh5 Kf6 56.g4+–) 55...Ba3 56.Kg2 Bb4 57.Bc1 Nd7 58.Kh3 Nf6 59.Kh4 Be1 60.Bf3 Kf5 61.Be3 (61.Bh5 Bg3 (worse is 61...Nh5 62.Kh5 Bg3 63.Bd2+–) 62.Kg3 Nh5 63.Kf3 Nf4=) 61...e4 (61...Kg6!?+=) 62.de4+/– Ne4 63.Bf4 (63.Bh5 Ng3 (worse is 63...Bg3 64.Kh3+=) 64.Bd2 Nh5 (64...Bd2?! 65.Kg3 Ke4 66.Kf2=) 65.Be1 Nf4–/+) 63...Bd2?? (better is 63...Nf2+–) 64.Be4 Ke4 65.Bd2 Kd4 66.Ba5 (worse is 66.Kh5 Kc4 67.g4 Kd3+–) 66...Kc4 67.Bc7 (better is 67.Kh5 Kb5 68.Bc7 c4 69.Bd6 c3+–) 67...Kb5 (67...Kd5 68.Ba5 c4 69.Kh5+–) 68.Bd6 Kc4 (68...c4+–) 69.Kh5 Kd5 70.Bc5! Kc5 71.Kg6 Kd6 72.g4 Ke7 73.Kg7 Ke6 74.g5 Ke7 75.g6 Ke8 76.Kh8 1–0. Cienciala,Ludwik – Minarik,Lubomir, Karvina op, 2003.

5.Nc3 c6

6.e3 0–0 7.Be2 Qb6 A) 8.Na4 Qc7 (8...Qb4 9.Bc3 Qa3 10.Bb2 Qb4 11.Bc3 Qa3 12.Bb2=; 8...Qd8 9.Nc3 e4 10.Nd4 d5 11.cd5 cd5 12.b5=) 9.0–0 e4 10.Nd4 c5 11.Nb5 Qc6 12.bc5=; B) 8.b5 e4 (8...a6 9.bc6 e4 10.Na4 Qc6 11.Nd4 Qc7 12.f3=; 8...cb5 9.cb5 a6 10.d4 e4 11.Nd2 d5 12.Qb3=; 8...Be6 9.0–0 a6 10.a4 cb5 11.ab5 Nbd7 12.Ng5=; 8...Bf5 9.0–0 cb5 10.cb5 Rc8 11.Rc1 Nbd7 12.d4=) 9.Nd4 a6 10.bc6 Nc6 11.Nc6 bc6 12.Rb1=; C) 8.a3 e4 (8...a5 9.0–0 ab4 10.Na4 Qc7 11.ab4 Bg4 12.d4=; 8...Bg4 9.0–0 a5 10.b5 Nbd7 11.d4 Rfc8 12.Rc1=; 8...Nbd7 9.0–0 e4 10.Nd4 Ne5 11.Qc2 c5 12.bc5+=; 8...Be6 9.d4 Nbd7 10.0–0 a5 11.b5 Bf5 12.Nh4+/–; 8...Rd8 9.0–0 Bf5 10.d4 a5 11.Na4 Qa7 12.de5=; 8...Re8 9.0–0 Bf5 10.d4 Nbd7 11.Rc1 a5 12.b5=) 9.Nd4 c5 10.Nc2 Nc6 11.0–0 Be6 12.d3+=; D) 8.Qb3 Na6 (8...e4 9.Nd4 Na6 10.a3 c5 11.bc5 Qb3 12.Nb3=; 8...Bg4 9.0–0 Nbd7 10.h3 Bh5 11.g4 Bg6 12.Nh4=; 8...Re8 9.d4 e4 10.Nd2 d5 11.cd5 cd5 12.Nd5=; 8...a5 9.b5 e4 10.Ng5 Bf5 11.f3 ef3 12.Nf3+=; 8...Bf5 9.d4 e4 10.Nd2 Nbd7 11.0–0 Rfe8 12.f3=; 8...Nbd7 9.d4 ed4 10.Nd4 a5 11.Nf5 Re8 12.b5=) 9.a3 Bg4 10.Qc2 Rfe8 11.c5 Qc7 12.cd6=.

6.e3 0–0 7.Be2 e4 8.Nd4 c5 (8...d5 9.cd5 cd5 10.Qa4 Qb6 11.a3 Nc6 12.Nc6=) 9.Nc2 Nc6 10.d3 ed3 11.Bd3 Nb4 12.Nb4+=.

6.e3 0–0 7.Be2 Re8 8.0–0 (8.a3 a5 (8...e4 9.Nd4 c5 10.Nc2 Nc6 11.d3 ed3 12.Bd3=) 9.0–0 ab4 10.ab4 Ra1 11.Qa1 e4 12.Nd4=; 8.d4 e4 (8...ed4 9.Nd4 c5 10.Nc2 Bf5 11.a3 Qb6 12.0–0=) 9.Nd2 d5 10.b5 Be6 11.bc6 Nc6 12.cd5=; 8.d3 d5 (8...Qb6 9.a3 Nbd7 10.0–0 c5 11.Qa4 Qc6 12.Rfb1=; 8...Bg4 9.0–0 Nbd7 10.h3 Be6 11.Ng5 Nf8 12.a3=; 8...Be6 9.0–0 Nbd7 10.Ng5 Bf5 11.Qb3 d5 12.f4=; 8...Bf5 9.0–0 d5 10.Ne5 Bb4 11.Qb3 Qe7 12.cd5=; 8...Nbd7 9.0–0 Qb6 10.a3 a5 11.b5 d5 12.d4=; 8...Bd7 9.0–0 a5 10.b5 cb5 11.Nb5 Nc6 12.d4=) 9.a3 a5 10.b5 d4 11.ed4 ed4 12.Ne4=; 8.b5 e4 9.Nd4 a6 10.ba6 Na6 11.f3 ef3 12.Bf3=; 8.Qb3 Na6 (8...e4 9.Nd4 Na6 10.a3 c5 11.Nc2 Be6 12.0–0=; 8...a5 9.b5 e4 10.Nd4 c5 11.Nc2 Nbd7 12.0–0=; 8...Qb6 9.d4 e4 10.Nd2 d5 11.b5 Be6 12.bc6=; 8...Nbd7 9.0–0 a5 10.a3 e4 11.Nd4 Ne5 12.Qc2=; 8...Bg4 9.h3 Bh5 10.d3 Nbd7 11.0–0 a5 12.b5=; 8...Qd7 9.0–0 e4 10.Nd4 c5 11.Nc2 Nc6 12.Nd5=) 9.0–0 Bg4 10.e4 Nc7 11.h3 Bf3 12.Bf3=; 8.Qc2 Bg4 (8...Qb6 9.a3 Bg4 10.0–0 a5 11.b5 cb5 12.cb5=; 8...Na6 9.a3 c5 10.bc5 Nc5 11.0–0 Bd7 12.d4=; 8...d5 9.Ne5 Bb4 10.d4 Nbd7 11.0–0 Bd6 12.cd5=; 8...Nbd7 9.0–0 Qb6 10.a3 a5 11.b5 cb5 12.Nb5+=; 8...a5 9.b5 cb5 10.cb5 Nbd7 11.d4 b6 12.Rd1+=; 8...Bd7 9.0–0 Bg4 10.a3 a5 11.d4 Nbd7 12.b5=) 9.0–0 a5 10.b5 cb5 11.cb5 Nbd7 12.h3=) 8...h6 (8...e4 9.Nd4 c5 10.bc5 dc5 11.Nb3 Nbd7 12.f3=; 8...d5 9.Ne5 Bb4 10.d4 Nbd7 11.Nd7 Bd7 12.Qb3=; 8...Nbd7 9.d4 Qb6 10.a3 a5 11.b5 c5 12.Re1+=) 9.Qc2 (9.d4 e4 10.Nd2 d5 11.a3 Be6 12.cd5=) 9...Bf8 (9...d5 10.Ne5 Bb4 11.d4 Nbd7 12.cd5+=) 10.b5 (10.a3 Bg4 11.Rac1 Nbd7 12.h3=) 10...Nbd7 (10...cb5 11.cb5 d5 12.Rfc1=) 11.d4 e4 (11...cb5 12.de5+=) 12.Nd2 d5 13.Qb3 Nb6 14.c5 Nbd7 15.a4 Nh7 16.a5 f5? (16...a6!? 17.bc6 bc6+=) 17.a6 (better is 17.bc6!? bc6 18.Nd5+–) 17...Ndf6 18.g3 (18.ab7 Bb7 19.Rfb1 Be7+/–) 18...g5 (18...Ng5 19.ab7 Bb7 20.Rfc1+=) 19.ab7+/– Bb7 20.bc6 (20.Qa4 Qd7+/–) 20...Bc6+= 21.Ra6 Qc7 22.Qa2 Reb8 23.Ra1 g4 24.Bc1 Bb7 25.c6 (better is 25.Nb5!? Qd7 26.Ra7 Ra7 27.Na7+/–) 25...Ba6 (better is 25...Bc6!? 26.Ba3 Qd7+=) 26.Nd5+= Qf7 27.Nf6 Nf6 28.Qf7 Kf7 29.Ba6 Bd6 30.Bb7 Ke8 (30...a5!?+=) 31.Nc4 Bc7 32.Ba8 Ra8 33.Ra6 Nd5 34.Ba3 Kd8 35.Bc5 Bb8 36.Nb6! Nb6 (36...ab6 37.Ra8; 36...Nb6 37.Bb6) 37.Bb6+– Bc7 38.Bc7 (better is 38.Bc5!?+–) 38...Kc7 39.d5 (39.h4!?+–) 39...Kd6+/– 40.Ra5 a6 41.Kf1 Rb8 42.Kg2 Rb5?? (better is 42...Rb1+/–) 43.Rb5+– (43.Ra6?! Rd5 44.h4 gh3 45.Kh3 Rd2+=) 43...ab5 44.Kf1 (44.Kf1 Kc7 45.Ke2+–) 1–0. Berlacki,Piotr – Goerge,Reinhold, Wch Seniors Bad Woerishofen, 1992.

6.e3 e4 7.Nd4 d5 8.Qb3 0–0 9.Be2 Qd6 (9...dc4 10.Bc4 b5 11.Be2+=) 10.cd5 cd5 11.Ncb5 Qb6 (11...Qb4?? 12.Nc7+–) 12.Rc1 Nc6 13.Nc6 bc6 14.Bd4 Qb7 15.Bf6 gf6 (15...Bf6 16.Nd6 Qb6 17.b5 cb5 18.Qd5=) 16.Nd4 The backward pawn on c6 becomes a target 16...Bd7 (16...Qb4? 17.Nc6 (17.Rc6?! Qb3 18.ab3 Bd7=) 17...Qa3 18.Rc3+–) 17.0–0 Rab8 (17...Bb4? 18.a3 a5 19.ab4 Qb4 20.Qa2+–; 17...Qb4?! 18.Nc6 Bc6 19.Qb4 Bb4 20.Rc6=) 18.d3 f5 19.Rb1 (19.Nc2 c5=) 19...Bd6 (19...Qb4 20.Qc2 Qd6 21.Nb3+=) 20.Qc2 Qc7 21.Rfc1 Rfc8 22.de4 Bh2 (better is 22...fe4!? 23.Ba6 Rd8=) 23.Kh1+/– Qd6 24.g3 (better is 24.Nf3!? Bg3 25.fg3 fe4 26.Nh2 Rb4 27.Rb4 Qb4 28.Rb1+=) 24...Qh6+= 25.Kg2 (25.ef5?? Bg3 26.Kg2 Qh2 27.Kf3 Qf2 28.Kg4 Bd6–+; worse is 25.Nf5 Bf5 26.ef5 Bg3 27.Kg2 Qh2 28.Kf3 Qf2 29.Kg4 Be5–+) 25...fe4 26.g4? (better is 26.Kf1+=) 26...Be5 (26...Bd6!? 27.Rh1 Qg6 28.f4 ef3 29.Bf3 Bb4 30.Kf2–+) 27.Rh1 Qg6 28.Rh4 Bf6 29.Rh3 h5 30.Rbh1 h4 (worse is 30...Bg4 31.Bg4 Rb4 32.Nf5–+) 31.Rg1 (31.a3 c5 (31...Bg4?! 32.Bg4 Qg4 33.Kf1–+) 32.bc5 Bg4 33.Bg4 Qg4 34.Kf1 Rc5–+) 31...Kh7 (31...Rb4 32.Kh1–+) 32.f4 ef3! 33.Kf3 (33.Nf3 Qc2 Discovered attack (33...Qc2 Deflection; 33...Rb4 Zwischenzug); 33.Bf3 Qc2 Double attack (33...Rb4 Zwischenzug); 33.Kf3 Rb4 Zwischenzug; 33.Rf3 Rb4 Zwischenzug) 33...Rb4?? (better is 33...Qe4 34.Qe4 de4 35.Ke4 Rb4–+) 34.Bd3+– Bd4 (34...c5 35.Bg6 fg6+–) 35.Bg6 fg6 36.Rh4 Kg7 37.ed4 Rf8 38.Kg3 (38.Kg3 Rd4 39.Qc3+–) 1–0. Schieferstein,Michael (2105) – Zweschper,Erich (2190), Hessenliga, 2007. (=1.Nf3 Nf6 2.c4 d6 3.b4 e5 4.Bb2 Be7 5.Nc3 c6)

5.e3

5.e3 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3).

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

5.e3 0–0 6.Be2 Bg4 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 Bg4 6.Be2 0–0).

5.g3 0–0

6.a3 Bg4 7.Bg2=+ Nc6 8.0–0 Qd7 9.b5 Nd8 10.d3 b6?? 11.Ne5+– de5 12.Ba8 c6 13.Be5 Bh3 14.Re1 Ng4 15.Bf4?? Bc5?? 16.e3+– h5 17.Nc3 Re8 18.Ne4 f5 19.Ng5 Bd6 20.Nh3 a6 21.bc6 Nc6 22.Bc6 Qc6 23.Bd6 Qd6 24.Qb3 Kh7 25.Rab1 h4 26.Nf4 h3 27.Qb6 Qe7 28.Qg6 Kg8 29.Rb6 Ne5 30.Qe6 Qe6 31.Re6 Re6 32.Ne6 g6 33.c5 Nd3 34.Rd1 Ne5 35.Rd6 Kf7 36.Ng5 Kg7 37.Ra6 Kh6 38.c6 Kg5 39.c7 1–0. algernon (2100) – hex (2000), net–chess.com, 2005.

6.Bg2+= a5 7.b5 a4 (7...e4 8.Nd4 c5 9.bc6 Nc6 10.d3+=) 8.a3 (8.0–0 Be6 9.Ng5 Bc4 10.Bb7 Ra7–/+) 8...Nbd7 (8...e4 9.Nd4 d5 10.Nc3 dc4 11.Ne4 Ne4 12.Be4+=) 9.d4 ed4 (9...e4 10.Nfd2=) 10.Bd4 Ne4 11.Nbd2 Ndc5 (11...f5 12.0–0=) 12.0–0 (12.Ne4 Ne4 13.0–0 Bf5=) 12...Bf6 13.Bf6 (13.Ne4 Ne4 14.b6 cb6=) 13...Qf6 14.Ne4 Ne4 15.Re1 (15.Qd4 Nc3 16.Qf6 Ne2 (worse is 16...gf6 17.Nd4+/–) 17.Kh1 gf6+–) 15...Nc5 (15...Bf5 16.Qd5 Rab8 17.Nh4 Ng3 18.hg3+–) 16.Nd2 (16.Qd4 Qd4 17.Nd4 Be6=) 16...Re8 17.Rc1 (17.e3 Bf5+=) 17...Bf5 18.Ra1 (18.e3 Rad8+=) 18...Qc3 (18...Rad8 19.Bd5+=) 19.e4 Nd3 20.Re3 Qd4?? (20...Bg4 21.Qf1 Qd2 22.Qd3 Qd3 23.Rd3 Rad8=) 21.Nf3 (21.ef5 Re3 22.Nf3 Rf3 23.Bf3 Qf2 24.Kh1 Ne1 25.Qe1 Qf3 26.Kg1 Qf5–+) 21...Qc4+/– 22.Rd3 Be4 23.Re3 Threatening Nd2 23...Qb5 24.Nd4 Qd5 25.Be4 Re4 26.Rc1?? (better is 26.Re4 Qe4 27.Rc1+=) 26...Rd4–+ (26...Qd4?! 27.Qd4 Rd4 28.Rc7–/+) 27.Qe1 Threatening mate: Re8 27...Rf8 28.Re2 (28.Re7 c5–+) 28...c5 29.h3 (29.Qc3 Rd3 30.Qb2 Qb3–+) 29...b5 30.Re8 g6 (30...Qg5 31.Rf8 Kf8 32.Rb1–+) 31.Qe7 Do you see the mate threat? 31...Re8 (31...Rd1 32.Rd1 Qd1 33.Kh2 Re8 34.Qe8 Kg7 35.Qb5–+) 32.Qe8 Kg7 33.Qb5 Rd1 34.Rd1 Qd1 35.Kg2 Qd4 (35...Qd4 36.Qc6 d5–+) 0–1. Riveline,Maurice – Roche,Yves, Val Thorens op–B, 1995.

4.Nf3 Bg4

5.a3 A) 5...Nc6 6.h3 (6.d4 Bf3 7.ef3 Nd4 8.Bd4 ed4 9.Qd4 Qe7+=; 6.b5 Ne7 7.e3 e4 8.h3 Bh5 9.Bf6 gf6=; 6.Qa4 Be7 7.d4 Bd7 8.de5 Ne5 9.Qb3 Nf3+=; 6.Nc3 Be7 7.b5 Na5 8.Qa4 c6 9.h3 cb5+=; 6.Qb3 Be7 7.b5 Nb8 8.d4 e4 9.Nfd2 0–0=; 6.Bc3 Be7 7.b5 Nb8 8.d4 e4 9.Nfd2 a6+=) 6...Be6 7.e3 e4 8.Ng5 Bf5 9.d3 ed3=; B) 5...Be7 6.d4 (6.h3 Be6 7.e3 0–0 8.d4 e4 9.Nfd2 a5=; 6.Nc3 a5 7.b5 0–0 8.e4 Nbd7 9.h3 Bh5=; 6.Qa4 Bd7 7.Qc2 a5 8.b5 Bg4 9.d4 ed4=; 6.d3 a5 7.e3 ab4 8.ab4 Ra1 9.Ba1 0–0=) 6...e4 7.Nfd2 Bf5 8.Nc3 c6 9.e3 d5=; C) 5...Nbd7 6.h3 (6.d4 Nb6 7.Qc2 ed4 8.Nd4 c5 9.Nb3 Be7=; 6.Nc3 Bf3 7.ef3 a5 8.d4 ab4 9.ab4 Ra1=) 6...Bf5 7.d4 Nb6 8.de5 de5 9.Qd8 Rd8+=; D) 5...Qe7 6.Nc3 a5 7.b5 Nbd7 8.h3 Bf5 9.d4 Nb6=; E) 5...Qd7 6.d4 e4 7.Nfd2 Be7 8.Nc3 Bf5 9.e3 a5=; F) 5...a6 6.d4 e4 7.Nfd2 Qe7 8.h3 Bh5 9.g4 Bg6=; G) 5...a5 6.b5 (6.Qa4 Nbd7 7.Qb5 ab4 8.ab4 Ra1 9.Ba1 Qb8+=; 6.d4 e4 7.Nfd2 ab4 8.h3 Bd7 9.ab4 Ra1+=; 6.h3 Bd7 7.Nc3 ab4 8.ab4 Ra1 9.Qa1 Be7=; 6.Nc3 Be7 7.b5 Nbd7 8.d4 0–0 9.e4 Bf3=; 6.e3 Be7 7.Be2 ab4 8.ab4 Ra1 9.Ba1 e4=) 6...Be7 7.d4 e4 8.Nfd2 c6 9.d5 0–0=.

5.Na3 A) 5...Nbd7 6.h3 (6.d4 e4 7.Nd2 d5 8.Qa4 a5 9.ba5 c6+=; 6.Rb1 Be7 7.d4 e4 8.Nd2 d5 9.Qb3 0–0+=; 6.Qa4 a5 7.ba5 c6 8.d4 ed4 9.Bd4 d5+=; 6.Rc1 Be7 7.h3 Bf3 8.gf3 a5 9.b5 Nc5+=; 6.e3 e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4+=; 6.Nb5 c6 7.Nc3 d5 8.cd5 cd5 9.Qb3 d4+=) 6...Be6 7.e3 a5 8.b5 d5 9.Ng5 Bf5+=; B) 5...Nc6 6.b5 (6.Qb3 Ne4 7.h3 Be6 8.b5 Ne7 9.Qc2 Nf6=; 6.Qa4 a6 7.Nc2 Bd7 8.Qb3 Be7 9.d4 ed4+=) 6...Ne7 7.h3 Bf5 8.d3 Ng6 9.e4 Bd7=; C) 5...Be7 6.h3 (6.d4 e4 7.Nd2 d5 8.Qa4 Bd7 9.b5 c6+=; 6.e3 e4 7.h3 Bd7 8.Nd4 0–0 9.d3 c5+=; 6.Qa4 Bd7 7.b5 e4 8.Nd4 Na6 9.Nb3 Nc5+=; 6.Rc1 0–0 7.d4 e4 8.Nd2 d5 9.Qa4 Nbd7+=; 6.Qb3 0–0 7.h3 Bc8 8.Rd1 a5 9.b5 Re8+=; 6.Nc2 0–0 7.d4 e4 8.Nd2 d5 9.cd5 Qd5+=) 6...Bf3 7.gf3 Nbd7 8.Rg1 Rg8 9.Bg2 c6+=; D) 5...Na6 6.Nc2 (6.Qb3 Be7 7.Nc2 0–0 8.d4 ed4 9.Nfd4 c5+=; 6.Qa4 Bd7 7.Qb3 Be7 8.d4 e4 9.Nd2 0–0+=) 6...Be7 7.d4 ed4 8.Qd4 c5 9.Qd2 cb4+=; E) 5...Qe7 6.Nc2 (6.h3 Bf3 7.ef3 Nc6 8.Nc2 Qe6 9.Qe2 Be7=; 6.e3 e4 7.h3 Bd7 8.Nd4 d5 9.Nac2 Nc6=; 6.Qa4 Nc6 7.c5 Qe6 8.Nb5 Qd7 9.d4 e4+=; 6.Rb1 Nc6 7.b5 Nd8 8.Nc2 a6 9.a3 ab5+=; 6.Qb3 Nc6 7.Nc2 Bf5 8.b5 Nd8 9.d4 e4=; 6.b5 a6 7.h3 Be6 8.e3 ab5 9.Nb5 Nc6=) 6...Na6 7.a3 0–0–0 8.Ne3 h5 9.Qc2 Kb8=; F) 5...Bf5 6.e3 (6.Nc2 Nbd7 7.d4 Be7 8.a3 a5 9.de5 de5=; 6.Rc1 Be7 7.e3 0–0 8.Be2 Na6 9.b5 Nb8+=; 6.d3 a5 7.b5 d5 8.Nc2 dc4 9.Ne5 cd3=; 6.d4 e4 7.Nd2 d5 8.Nc2 Be7 9.e3 0–0+=; 6.Qa4 Bd7 7.b5 e4 8.Nd4 Be7 9.g3 c5+=; 6.Qb3 Be7 7.e3 Bg4 8.Be2 e4 9.Nd4 Be2=) 6...Be7 7.Be2 0–0 8.0–0 Nbd7 9.d4 a5=; G) 5...a5 6.b5 (6.Qa4 Nbd7 7.ba5 c6 8.d4 ed4 9.Bd4 d5+=; 6.ba5 Nc6 7.e3 e4 8.h3 Bh5 9.Bf6 Qf6–/+; 6.Nc2 ab4 7.Nb4 Be7 8.Nd5 Nd5 9.cd5 Nd7+=) 6...Be7 7.Nc2 0–0 8.Ne3 Bd7 9.Rb1 Re8+=.

5.Qa4 A) 5...Nc6 6.e3 (6.b5 Ne7 7.Nc3 a6 8.c5 ab5 9.Qb5 c6+=; 6.h3 Bd7 7.b5 e4 8.Ng5 h6 9.bc6 Bc6+=; 6.a3 Be7 7.d4 Bd7 8.de5 Ne5 9.Qb3 Nf3+=; 6.Nc3 Be7 7.b5 Bf3 8.e3 a6 9.gf3 ab5+=; 6.Na3 a6 7.d4 a5 8.b5 Bf3 9.ef3 Nd4+=; 6.d4 Bd7 7.d5 Nd4 8.Qd1 Nf3 9.ef3 Be7=) 6...e4 7.Nd4 Bd7 8.Nc6 Bc6 9.Qc2 a6=; B) 5...c6 6.Nc3 (6.d4 e4 7.Nfd2 d5 8.Nc3 e3 9.fe3 dc4+=; 6.h3 Bd7 7.Nc3 e4 8.Nh2 d5 9.cd5 cd5+=; 6.b5 Be7 7.h3 Bf5 8.Nc3 0–0 9.g4 Be6+=; 6.a3 Nbd7 7.h3 Bf5 8.d3 a5 9.g4 Bg6+=; 6.e3 Nbd7 7.d4 Nb6 8.Qc2 Bf3 9.gf3 ed4=; 6.Qb3 Be7 7.h3 Bf5 8.Nc3 0–0 9.e3 Nbd7+=) 6...Nbd7 7.h3 Bf5 8.d3 a5 9.b5 Nc5=; C) 5...Bd7 6.Qc2 (6.b5 Bf5 7.d4 e4 8.Nfd2 Nbd7 9.Qc2 a6=; 6.Qb3 Be7 7.d4 ed4 8.Nd4 Nc6 9.e3 0–0=; 6.Qa3 Be7 7.Nc3 a5 8.b5 Bf5 9.d4 Nbd7+=; 6.Qd1 Be7 7.Nc3 0–0 8.e4 Nc6 9.b5 Nd4+=) 6...Be7 7.e4 0–0 8.Be2 Re8 9.0–0 Na6=; D) 5...Nbd7 6.h3 (6.Qb5 a5 7.d4 ed4 8.Nd4 ab4 9.f3 Bh5+=; 6.d4 e4 7.Nfd2 c6 8.f3 Bf5 9.fe4 Ne4+=; 6.e3 a5 7.ba5 Be7 8.d4 c6 9.h3 Bf3=; 6.Nc3 c6 7.h3 Bf3 8.ef3 Be7 9.Be2 0–0+=; 6.a3 a5 7.Qb5 ab4 8.ab4 Ra1 9.Ba1 Qb8+=; 6.Na3 a5 7.ba5 c6 8.d4 ed4 9.Bd4 d5+=) 6...Be6 7.e3 a5 8.ba5 c6 9.Bc3 Be7=; E) 5...Qd7 6.Qb3 (6.Qd7 Nbd7 7.Nc3 c6 8.h3 Bf3 9.ef3 d5+=; 6.b5 Na6 7.d4 ed4 8.Bd4 Nc5 9.Qd1 0–0–0+=; 6.Qa3 Nc6 7.Qb3 a6 8.h3 Bf3 9.ef3 Be7+=; 6.Qd1 Be7 7.h3 Bf5 8.d3 0–0 9.g4 Be6+=) 6...Be7 7.h3 Be6 8.d4 e4 9.d5 ef3+=.

5.Nc3 A) 5...a5 6.a3 (6.Qa4 Nbd7 7.Nd5 c6 8.Nf6 Qf6 9.ba5 Be7+=; 6.ba5 Nc6 7.e4 Na5 8.Be2 Bf3 9.gf3 Nc6+=; 6.b5 Nbd7 7.e4 Nc5 8.h3 Bh5 9.d3 Be7=) 6...Be7 7.b5 Nbd7 8.h3 Bf5 9.d3 Nc5=; B) 5...Nbd7 6.e3 (6.d4 Be7 7.e4 a5 8.a3 ab4 9.ab4 Ra1+=; 6.h3 Bf3 7.ef3 Be7 8.f4 0–0 9.Qf3 a5+=; 6.e4 a5 7.b5 Nc5 8.h3 Bh5 9.d3 Be7=; 6.Rb1 Be7 7.e4 a5 8.b5Nc5 9.h3 Bd7+=; 6.a3 Bf3 7.ef3 a5 8.d4 ab4 9.ab4 Ra1=) 6...e4 7.h3 Bh5 8.g4 a5 9.b5 Bg6=; C) 5...Bf3 6.ef3 (6.gf3 c6 7.a3 a5 8.b5 Nbd7 9.d4 cb5=) 6...Be7 7.a3 0–0 8.Bd3 Nc6 9.0–0 a5=; D) 5...Be7 6.h3 (6.e3 a5 7.b5 a4 8.Rb1 a3 9.Ba1 0–0=; 6.Qa4 Bd7 7.Qc2 0–0 8.e4 Bg4 9.Be2 Na6=; 6.a3 a5 7.b5 Nbd7 8.d4 Bf3 9.ef3 ed4=; 6.e4 0–0 7.Be2 Nc6 8.b5 Bf3 9.Bf3 Nd4=; 6.b5 Nbd7 7.d4 a6 8.e4 Bf3 9.gf3 c5+=; 6.Nd5 0–0 7.Ne7 Qe7 8.Qb3 a5 9.b5 Nbd7+=) 6...Bf3 7.gf3 0–0 8.Rg1 a5 9.b5 Nbd7=; E) 5...Na6 6.a3 Be7 7.e4 0–0 8.Be2 c5 9.b5 Nc7=; F) 5...Bf5 6.d3 (6.e3 Be7 7.d4 e4 8.Qc2 d5 9.a3 c6=; 6.d4 e4 7.Nd2 Be7 8.d5 a5 9.ba5 Nbd7=) 6...Be7 7.e4 Bg4 8.Be2 0–0 9.0–0 Nbd7=; G) 5...Nc6 6.Nd5 (6.b5 Na5 7.Qa4 c6 8.bc6 bc6 9.Nd5 Ne4=; 6.a3 Be7 7.b5 Na5 8.Qa4 c6 9.h3 cb5+=; 6.Qa4 Be7 7.h3 Bf3 8.gf3 Nd7 9.Nd5 Nb6=; 6.Rc1 Nb4 7.Qb3 a5 8.Nd5 Nbd5 9.cd5 Ra6–/+) 6...Be6 7.Nf6 Qf6 8.e3 Be7 9.b5 Nd8=.

5.d3 a5 6.b5 (6.Qa4 Nbd7 7.ba5 Be7 8.d4 c6 9.h3 Bf3+=; 6.a3 Be7 7.b5 Nbd7 8.e3 0–0 9.Be2 c6=; 6.ba5 Nc6 7.Nbd2 Be7 8.e3 0–0 9.Be2 Ra5+=) 6...Nbd7 7.Nbd2 Be7 8.e3 a4 9.Be2 0–0=.

5.d3 Na6 6.Bc3 (6.d4 Bf3 7.ef3 ed4 8.b5 Nc5 9.Bd4 Ne6=; 6.e3 Nb4 7.Qb3 a5 8.a3 Na6 9.d4 ed4–/+; 6.Qa4 Bd7 7.Qb3 Be7 8.e4 Bg4 9.Nbd2 0–0=; 6.a3 Be7 7.e3 c5 8.b5 Nc7 9.Be2 0–0=; 6.Nbd2 Nb4 7.Qb3 a5 8.h3 Bc8 9.e3 Be7–/+; 6.b5 Nc5 7.e3 a6 8.d4 ed4 9.Bd4 ab5=) 6...Be7 7.e3 0–0 8.Be2 Re8 9.0–0 c6=.

5.d3 Nc6 6.a3 (6.e3 Nb4 7.Qb3 a5 8.a3 Na6 9.d4 ed4–/+; 6.b5 Ne7 7.e3 a6 8.Be2 ab5 9.cb5 Ned5=; 6.d4 a5 7.b5 Bf3 8.ef3 Nd4 9.Bd4 ed4+=; 6.Qa4 Be7 7.e3 Bf3 8.gf3 a6 9.Nc3 d5+=) 6...Bf3 7.gf3 a6 8.Rg1 Rg8 9.Bg2 Nh5=.

5.d4 A) 5...ed4 6.Nd4 d5 7.c5 Be7 8.h3 Bd7 9.e3 a5=; B) 5...Nbd7 6.a3 (6.Nbd2 e4 7.h3 Bh5 8.g4 ef3 9.gh5 d5+=; 6.Nc3 Be7 7.e4 ed4 8.Qd4 a5 9.b5 Nc5=; 6.h3 Bf5 7.Nbd2 ed4 8.Nd4 Bg6 9.a3 Ne5=; 6.de5 Ne5 7.Nbd2 a5 8.Qa4 Nfd7 9.ba5 f6=; 6.a4 Be7 7.h3 Bf3 8.ef3 ed4 9.Qd4 c5+=; 6.Qb3 ed4 7.Nd4 Ne5 8.h3 Bc8 9.e3 Be7=) 6...Nb6 7.Qc2 ed4 8.Nd4 c5 9.Nb3 Be7=; C) 5...Nc6 6.d5 (6.Nbd2 ed4 7.Nd4 Nd4 8.Bd4 Be7 9.h3 Be6=; 6.a3 Bf3 7.ef3 Nd4 8.Bd4 ed4 9.Qd4 Qe7+=) 6...Nb8 7.e3 Be7 8.Be2 a5 9.a3 Na6=; D) 5...Bd7 6.d5 (6.Nc3 Nc6 7.de5 Ne5 8.e3 a5 9.b5 Be6=; 6.a3 e4 7.Nfd2 e3 8.fe3 Qe7 9.e4 Ne4=; 6.e3 e4 7.Nfd2 Bf5 8.Nc3 c6 9.Be2 d5=; 6.Qb3 e4 7.Nfd2 Be7 8.Nc3 Bf5 9.e3 0–0=; 6.de5 de5 7.c5 e4 8.Ne5 e3 9.Qd3 ef2=; 6.Qc2 ed4 7.Bd4 Nc6 8.Bc3 Ne5 9.Nbd2 Nf3=) 6...Be7 7.Nc3 Na6 8.a3 0–0 9.e4 Bg4+=; E) 5...e4 6.Nfd2 (6.h3 Bd7 7.Nfd2 d5 8.a3 e3 9.fe3 dc4+=) 6...d5 7.a3 Bd6 8.Nc3 c6 9.cd5 cd5+=.

5.e3 a5 6.h3 (6.Qa4 Nbd7 7.ba5 Be7 8.d4 c6 9.h3 Bf3=; 6.ba5 e4 7.h3 Bd7 8.Nd4 Ra5 9.d3 Nc6=; 6.a3 Be7 7.Be2 ab4 8.ab4 Ra1 9.Ba1 e4=; 6.b5 e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4=) 6...Bf5 7.b5 Be7 8.Be2 0–0 9.0–0 Qe8=.

5.e3 Na6 6.a3 (6.Qb3 Be7 7.c5 Nb8 8.cd6 cd6 9.h3 Be6=; 6.b5 Nc5 7.d4 ed4 8.Bd4 Be7 9.Be2 0–0=; 6.Qa4 Bd7 7.Qb3 e4 8.Nd4 Be7 9.d3 c5=; 6.h3 Bf3 7.gf3 Nb4 8.Qb3 Nc6 9.Qb7 Kd7=; 6.Bc3 e4 7.h3 Bd7 8.b5 Nc5 9.d4 ed3=; 6.Nc3 Nb4 7.Rb1 Nc6 8.Be2 Be7 9.Nd5 Bf5–/+) 6...e4 7.h3 Bd7 8.Nd4 c5 9.Nc2 cb4=.

5.e3 Nbd7 6.h3 (6.Nc3 a5 7.ba5 Ra5 8.h3 Bf5 9.d4 c6=; 6.Qa4 a5 7.ba5 Be7 8.d4 c6 9.h3 Bf5+=; 6.d4 e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4+=; 6.d3 d5 7.a3 a5 8.cd5 ab4 9.Qb3 Nc5–/+; 6.Be2 e4 7.Ng5 Be2 8.Qe2 h6 9.Nh3 c6=; 6.a3 e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4+=) 6...Bh5 7.g4 Bg6 8.d3 Be7 9.Bg2 c6=.

5.e3 Be7 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be7 5.Nf3 Bg4).

5.e3 Bh5 6.d3 (6.Be2 e4 7.Nd4 Be2 8.Qe2 c5 9.Nc2 cb4=) 6...Nbd7 7.Be2 d5 8.c5 a5 9.a3 e4=.

5.h3 Bc8 6.Qc2 (6.a3 a5 7.Nc3 ab4 8.ab4 Ra1 9.Ba1 Be7=; 6.d4 e4 7.Nfd2 d5 8.Qa4 Bd7 9.b5 e3+=; 6.e3 e4 7.Nd4 c5 8.Nc2 cb4 9.Nb4 Nc6=; 6.Nc3 Be7 7.d4 e4 8.Ng5 Bf5 9.g4 Bg6+=; 6.Qb3 Be7 7.Nc3 a5 8.Qa4 Nbd7 9.e4 0–0+=; 6.g4 Na6 7.d4 ed4 8.b5 Nc5 9.Nd4 Be7+=) 6...Be7 7.e4 Bd7 8.a3 Bc6 9.Nc3 0–0+=.

5.h3 Bd7 6.a3 (6.d4 e4 7.Nfd2 d5 8.a3 e3 9.fe3 dc4+=; 6.Nc3 Be7 7.e4 0–0 8.Be2 Nc6 9.a3 Nd4=; 6.d3 Nc6 7.b5 Ne7 8.e4 Ng6 9.Nc3 a6=; 6.e3 c5 7.bc5 e4 8.Nh2 dc5 9.d3 Nc6=) 6...Be7 7.Nc3 Nc6 8.e3 Be6 9.d4 ed4=.

5.h3 Bf3 6.gf3 (6.ef3 Be7 7.Bd3 a5 8.b5 Nbd7 9.0–0 c6=) 6...Nbd7 7.Rg1 a5 8.b5 c6 9.d4 Rc8=.

5.h3 Bf5 6.a3 (6.d4 e4 7.g4 ef3 8.gf5 d5 9.e3 Bb4+=; 6.d3 Be7 7.g4 Be6 8.Bg2 c6 9.Nc3 0–0=; 6.Qa4 Bd7 7.b5 e4 8.Nd4 Na6 9.Nc3 Nc5=) 6...Be7 7.d3 Be6 8.e3 a5 9.d4 e4=.

5.h3 Bh5 6.a3 (6.d4 e4 7.Nfd2 d5 8.Qa4 c6 9.e3 dc4+=; 6.Qa4 Nbd7 7.d4 e4 8.Nfd2 c6 9.Nc3 d5=; 6.Nc3 Nc6 7.b5 Bf3 8.gf3 Nd4 9.Bg2 Qd7=; 6.g4 Bg6 7.d3 Be7 8.Bg2 0–0 9.Nh4 c6=; 6.e3 Be7 7.Be2 e4 8.g4 ef3 9.Bf3 Bg6+=; 6.b5 a6 7.g4 Bg6 8.Bg2 ab5 9.cb5 Nd5+=) 6...Nc6 7.g4 Bg6 8.b5 Nb8 9.Bg2 Nfd7=.

5.d3 Nbd7

6.a3 Be7 7.e3 a5 8.Be2 ab4 9.ab4 Ra1+=.

6.Qa4 a5 7.ba5 Be7 8.Nbd2 0–0 9.d4 ed4+=.

6.Qb3 a5 7.h3 Bf3 8.gf3 ab4 9.Rg1 c5+=.

6.Bc3 d5 7.e3 dc4 8.h3 Bf3 9.Qf3 cd3+=.

6.Nc3 a5 7.a3 Be7 =.

6.Nbd2 Be7 7.e3 0–0 8.h3 Bh5 (8...Be6 9.Be2=) 9.g4 Bg6 10.Nh4 c6 11.Ng6 hg6 12.Bg2 d5 (12...a5 13.a3=) 13.a3+= dc4 14.Nc4 Qc7 (14...Nd5 15.Rc1+=) 15.Rc1 a6 (15...Rfe8 16.h4+/–) 16.0–0 (16.g5 Nh5 17.h4 Rfe8+/–) 16...Ne8 (16...Rac8 17.Qe2+/–) 17.Qf3+/– f6 (17...Bh4 18.Rfe1+/–) 18.Qe4 Kh7 19.d4 ed4?? (better is 19...f5 20.gf5 gf5+/–) 20.Qe7+– 1–0. Bonetti,Shane – ches_man, ICC, 2002.

6.Nbd2 Be7 7.h3 Be6 8.d4 a5 9.d5 Bf5+=.

6.d4 a5 7.b5 ed4 8.Nd4 Bh5 9.g3 Ne5=.

6.e3 d5

7.a3 a5 8.ba5 c6 9.Nbd2 Qa5 10.cd5 cd5 11.Be2 Bd6 12.0–0 0–0 13.d4.

7.a3 a5 8.b5 dc4 9.Nc3 cd3 10.Qd3 Bd6 11.Ne4 0–0 12.Rd1 Bf5 13.Nf6.

7.a3 a5 8.cd5 ab4 9.Qb3 Nc5–/+.

7.a3 a5 8.h3 Bf3 9.Qf3 e4 10.Qd1 ab4 11.cd5 ba3 12.Ba3 Ba3 13.Ra3.

7.a3 dc4 8.Nbd2 (8.h3 Bf5 9.dc4 c5 10.g4 Bg6 11.Qa4 cb4 12.ab4 b5 13.Qb3) 8...a5 9.ba5 cd3 10.Bd3 Ra5 11.0–0 Be7 12.h3 Bh5 13.Qb1.

7.Qa4 a5 (7...Bf3 8.gf3 a5 9.ba5 c6 10.Nd2 Ra5 11.Qc2 Bb4 12.a3 Bd2 13.Kd2; 7...dc4 8.Ne5 a5 9.Ng4 Bb4 10.Nc3 Ng4 11.Be2 Nf2 12.Kf2 Qf6 13.Bf3) 8.ba5 (8.Ne5 Bb4 9.Nc3 0–0 10.Ng4 Ng4 11.Be2 Nb6 12.Qc2 Qh4 13.g3) 8...c6 9.Nbd2 Ra5 10.Qc2 Bb4 11.Qb3 Be7 12.Bc3 e4 13.h3.

6.e3 Be7

7.a3 A) 7...0–0 8.Nc3 (8.h3 Be6 9.Nc3 a5 10.Be2 d5 11.cd5 Nd5 12.0–0 f6 13.Nd5; 8.Be2 e4 9.de4 Ne4 10.Nc3 Bf6 11.Qc2 Nc3 12.Bc3 Bc3 13.Qc3) 8...c6 9.Be2 h6 10.0–0 Qb6 11.h3 Be6 12.d4 e4 13.Nd2; B) 7...c5 8.Nc3 (8.h3 Be6 9.Nc3 0–0 10.Be2 d5 11.0–0 d4 12.Na4 de3 13.fe3; 8.Be2 0–0 9.Nc3 cb4 10.ab4 d5 11.Nd5 Nd5 12.cd5 Bb4 13.Kf1; 8.Nbd2 0–0 9.Be2 d5 10.h3 Bf3 11.Bf3 cb4 12.ab4 Bb4 13.0–0) 8...Qb6 9.b5 0–0 10.Be2 h6 11.0–0 Be6 12.Qb3 a6 13.a4; C) 7...Nb6 8.Nc3 (8.Be2 0–0 9.0–0 h6 10.Nc3 a5 11.Qc2 Be6 12.h3 Re8 13.b5; 8.h3 Be6 9.Nc3 0–0 10.Be2 Qd7 11.0–0 h6 12.Qc2 a6 13.a4) 8...0–0 9.Be2 Qd7 10.0–0 a5 11.Qc2 h6 12.h3 Bh5 13.Qb3; D) 7...h6 8.Nc3 (8.Be2 0–0 9.Nc3 c6 10.h3 Bf5 11.0–0 a5 12.Qb3 Qb6 13.d4; 8.h3 Bf5 9.Nc3 0–0 10.Be2 c6 11.0–0 a5 12.Qb3 Qb6 13.d4; 8.Qb3 0–0 9.Nc3 a5 10.Be2 ab4 11.ab4 Ra1 12.Ba1 c6 13.0–0) 8...0–0 9.Be2 c6 10.h3 Bf5 11.0–0 a5 12.Qb3 Qb6 13.d4; E) 7...a5 8.Nbd2 (8.Be2 ab4 9.ab4 Ra1 10.Ba1 0–0 11.h3 Be6 12.0–0 c6 13.Nbd2; 8.Nc3 0–0 9.Be2 ab4 10.ab4 d5 11.cd5 Bb4 12.Qb3 Ra1 13.Ba1; 8.h3 Bf3 9.Qf3 ab4 10.ab4 d5 11.c5 Ra1 12.Ba1 Qa8 13.Bc3) 8...0–0 9.Be2 ab4 10.ab4 Nb6 11.h3 Bf5 12.g4 Ra1 13.Qa1.

7.Nc3 A) 7...0–0 8.h3 (8.Be2 d5 9.cd5 Bb4 10.e4 c6 11.0–0 Rc8 12.Rc1 cd5 13.Nd5; 8.a3 a5 9.h3 ab4 10.ab4 Ra1 11.Qa1 Bf3 12.gf3 Qa8 13.Qa8) 8...Bh5 9.Be2 a5 10.b5 Nc5 11.0–0 Qd7 12.d4 ed4 13.Qd4; B) 7...c6 8.Be2 (8.h3 Be6 9.Be2 Qb6 10.Na4 Qb4 11.Bc3 Qa3 12.Bb2 Qb4 13.Bc3; 8.a3 0–0 9.Be2 Qb6 10.0–0 h6 11.h3 Be6 12.d4 a5 13.b5) 8...Qb6 9.Na4 Qb4 10.Bc3 Qa3 11.Bb2 Qb4 12.Bc3 Qa3 13.Bb2; C) 7...a5 8.a3 (8.b5 0–0 9.h3 Bf5 10.Be2 Nc5 11.0–0 Qd7 12.e4 Bg6 13.Nh4; 8.ba5 c6 9.Be2 Qa5 10.h3 Be6 11.0–0 0–0 12.d4 h6 13.e4) 8...ab4 9.ab4 0–0 10.Be2 d5 11.Ra8 Qa8 12.Qb3 dc4 13.dc4.

7.Be2 0–0 8.0–0 (8.Nbd2 d5 9.Ne5 Ne5 10.Be5 Be2 11.Qe2 dc4 12.dc4 Bb4 13.Rb1; 8.h3 Be6 9.Nc3 c6 10.0–0 Qb6 11.Na4 Qb4 12.Bc3 Qa3 13.Bb2; 8.Nc3 d5 9.cd5 Bb4 10.e4 c6 11.dc6 Rc8 12.0–0 Rc6 13.Nd5; 8.a3 e4 9.de4 Ne4 10.Nc3 Bf6 11.Qc2 Nc3 12.Bc3 Bc3 13.Qc3) 8...a5 9.b5 Re8 (9...a4 10.h3 Bf5 11.e4 Bg6 12.Nc3 Nc5 13.Bc1) 10.h3 Bf3 (10...Bf5 11.Nc3 Nc5 12.e4 Bd7 13.Qc2) 11.Bf3 Qc8 (11...Nc5 12.Nc3 Qb8 13.d4) 12.Nc3 c6 (12...Nf8 13.Nd5) 13.Rb1 Bf8 14.bc6 bc6 15.Qa4 Ra6 16.Ba3 Qc7 17.Rb2 Rb8 18.Rb8 Nb8 19.d4 ed4 20.ed4 Qa7 21.Rd1 1–0. Kappel,Ray – Visser,Bob, IECG, 2010.

7.Be2 a5 8.b5 (8.a3 ab4 9.ab4 Ra1 10.Ba1 0–0 11.h3 Bf5 12.Nc3 c6 13.0–0; 8.h3 Bf5 9.b5 0–0 10.Nc3 Nc5 11.0–0 h6 12.d4 ed4 13.Nd4) 8...0–0 9.0–0 Nc5 10.Nc3 a4 11.Ba3 e4 12.Ne1 Be2 13.Qe2.

7.Be2 c6 8.h3 (8.Nc3 Qb6 9.Na4 Qb4 10.Bc3 Qa3 11.Bb2 Qb4 12.Bc3 Qa3 13.Bb2; 8.0–0 0–0 9.h3 Be6 10.Nc3 Qb6 11.Na4 Qb4 12.Bc3 Qa3 13.Bb2; 8.a3 a5 9.Nc3 0–0 10.0–0 h6 11.h3 Bf5 12.d4 Qc7 13.b5; 8.Nbd2 a5 9.a3 0–0 10.h3 Bf5 11.0–0 Qb6 12.Bc3 ab4 13.ab4; 8.Bc3 0–0 9.Nbd2 d5 10.0–0 Qc7 11.h3 Bf5 12.Qc2 h6 13.Rac1) 8...Be6 9.Nc3 0–0 10.0–0 Qb6 11.Na4 Qb4 12.Bc3 Qa3 13.Bb2.

7.Be2 d5 8.b5 (8.Ne5 Bb4 9.Nd2 Be2 10.Ke2 Ne5 11.Be5 0–0 12.Bf6 Qf6 13.cd5; 8.0–0 dc4 9.h3 cd3 10.Bd3 Bh5 11.Nbd2 Bb4 12.Qa4 Bd2 13.Nd2; 8.Nc3 dc4 9.dc4 Bb4 10.0–0 0–0 11.Qc2 Qe7 12.h3 Bh5 13.Nd5; 8.cd5 Bb4 9.Nbd2 Nd5 10.0–0 0–0 11.Ne5 Ne5 12.Bg4 Nd3 13.Rb1; 8.Nbd2 dc4 9.Nc4 Bb4 10.Kf1 0–0 11.Nfe5 Ne5 12.Ne5 Be2 13.Qe2) 8...Bb4 9.Nbd2 Bf3 10.gf3 0–0 11.a3 Bd2 12.Qd2 Re8 13.0–0.

7.h3 A) 7...Bf5 8.Nc3 (8.g4 Bg6 9.g5 Nh5 10.Be2 Bg5 11.Ng5 Qg5 12.Nc3 0–0–0 13.h4; 8.a3 0–0 9.Nc3 a5 10.Be2 c6 11.0–0 h6 12.b5 Qb6 13.e4; 8.Nbd2 a5 9.a3 0–0 10.Be2 ab4 11.ab4 Nb6 12.g4 Ra1 13.Qa1; 8.Be2 a5 9.b5 0–0 10.Nc3 h6 11.0–0 Nc5 12.d4 ed4 13.Nd4) 8...0–0 9.g4 Bg6 10.Nh4 a5 11.Ng6 hg6 12.b5 Nc5 13.Bg2; B) 7...Bf3 8.Qf3 d5 9.a3 a5 10.cd5 ab4 11.Be2 0–0 12.0–0 b3 13.Nd2; C) 7...Bh5 8.Nc3 (8.a3 0–0 9.Nc3 a5 10.Be2 d5 11.cd5 ab4 12.ab4 Ra1 13.Qa1; 8.Nbd2 0–0 9.Be2 a5 10.a3 ab4 11.ab4 Nb6 12.Ra8 Qa8 13.Qb3; 8.Be2 0–0 9.Nbd2 a5 10.a3 ab4 11.ab4 Nb6 12.Ra8 Qa8 13.Qb3; 8.g4 Bg6 9.Nc3 a5 10.b5 h6 11.Nh4 Bh7 12.Nf5 0–0 13.Ne7) 8...0–0 9.a3 a5 10.Be2 d5 11.cd5 ab4 12.ab4 Ra1 13.Qa1; D) 7...Be6 8.a3 (8.Nc3 c6 9.Be2 Qb6 10.Na4 Qb4 11.Bc3 Qa3 12.Bb2 Qb4 13.Bc3; 8.Be2 a5 9.b5 a4 10.Ng5 Bf5 11.Nd2 Nc5 12.Qc2 0–0 13.0–0; 8.Nbd2 0–0 9.Be2 a5 10.a3 d5 11.b5 e4 12.de4 de4 13.Nd4) 8...a5 9.Nc3 ab4 10.ab4 0–0 11.Be2 d5 12.c5 Ra1 13.Qa1.

5.d3 Be7

6.a3 a5 7.b5 Nbd7 8.e3 c6 9.Nc3 cb5=.

6.Qa4 Bd7 7.b5 0–0 8.e3 Bf5 9.Be2 Nbd7+=.

6.b5 a6 7.e3 0–0 8.Be2 ab5 9.cb5 c6+=.

6.Nbd2 0–0 7.h3 Bf3 8.Nf3 Nbd7 9.e3 Re8=.

6.d4 e4 7.Nfd2 0–0 8.d5 a5 9.ba5 e3+=.

6.e3 0–0 7.Be2 d5 8.Ne5 Bb4 9.Nd2 Be2=.

6.e4 0–0 7.Be2 Nbd7 8.0–0 c6 9.a4 Re8 10.Nfd2 Be2 11.Qe2 Bf8 12.Nc3 Qe7 13.Nf3 d5 14.c5?? de4 15.Ne4= Ne4 16.Qe4 Rad8 17.Rfe1 g6 18.Be5 Ne5=+ 19.Qe5 Qd7 20.Qc3 Bg7 21.Re8+= Re8 22.d4 Qd5 23.Kf1 Re4= 24.Rd1 a5 25.ba5+/– Qa2 26.h3?? Qe2–+ 27.Kg1 Qd1 (27...Qd1 28.Kh2 Bd4 29.Nd4 Qd4 30.Qd4 Rd4–+) 0–1. hal1958 – marvinni, playchess.de, 2003.

6.h3 Bf3 7.gf3 d5 8.c5 a5 9.Be5 Nc6+=.

5.d3 Bf3

6.ef3 Nc6 7.Be2 Be7 8.f4 Nd4 9.0–0 0–0 =.

6.ef3 Be7 7.a3 (7.b5 0–0=) 7...Nbd7 (7...Nc6 8.Be2=) 8.f4 (8.Nc3 0–0=) 8...ef4 (8...0–0 9.Be2+=) 9.Qf3 (9.Be2 0–0+=) 9...Rb8 (9...0–0!?+=) 10.Qf4= 0–0 11.Be2 Re8 (11...d5 12.Nc3=) 12.0–0 Bf8 (12...d5 13.Nc3=) 13.Re1 (13.Nc3 d5+=) 13...g6 (13...d5 14.Nc3+=) 14.Qd4 (14.Nc3 Bg7+=) 14...a6 (14...Bh6 15.Bc3+=) 15.Nc3 Bg7 16.Qf4 Re6 17.d4 (17.g4 h6+=) 17...Qe7 18.d5 (18.a4+=) 18...Nh5 (better is 18...Re5!?=) 19.Qd2+/– Re5 20.Bh5 gh5 21.Ne2 Re4?? (better is 21...Qh4+/–) 22.Bg7+– Kg7 23.Ng3 Re1 24.Re1 Qh4 (24...Qf8 25.Re7! Qe7 26.Nf5 Kf6 27.Ne7 Ke7 28.Qe2 Kf8 29.Qh5 Nf6+–) 25.Nf5 (25.Nf5 Kf6 26.Nh4+–) 1–0. Bonetti,Shane – lencho287, ICC, 2002.

6.ef3 g6 7.Be2 (7.d4 ed4 8.Qd4 Bg7 9.Be2 0–0=) 7...Bg7 8.0–0 (8.f4 ef4 9.0–0 0–0=) 8...0–0 9.Nc3 (9.f4 ef4=) 9...Nc6 10.a3 Nd4 11.Ne4 d5 12.Nf6 Bf6 13.Re1 e4 (better is 13...Re8=) 14.fe4+/– de4 15.de4 Ne2 (15...Be5 16.Bd3+/–) 16.Qe2+– Bb2 17.Qb2 Re8 18.Rad1 Qh4 19.g3 Qh3 (19...Qe7 20.Rd4+/–) 20.c5 Re6 21.f3 Rae8 22.Rd2 f5 (22...Qh5!? 23.Qc3+–) 23.Rd7 R8e7 24.Rd8 Kf7 25.Qh8 Re8 26.Rd7 R6e7 27.Re7 Ke7?? (27...Re7 28.e5 Qh6+–) 28.ef5 1–0. Wall,Bill – Dzidic, Microsoft Gaming Zone, 1999.

6.gf3 d5 7.Qa4 Qd7 8.b5 d4 9.Rg1 Qe6 =+.

5.e3 e4

6.Qc2?? ef3–+ 7.Bf6 (7.h3 Bh5–+) 7...Qf6 (7...gf6?! 8.Qe4 Be6 9.Qb7–+) 8.Qe4 Be7 9.Nc3 fg2 10.Bg2 Bc8 11.0–0 (11.Bh3 Nd7–+ (11...Bh3?! 12.Qb7 0–0 13.Qa8–+)) 11...c6 12.d4 Bf5 13.Qf4 Bd3 14.Qf6 Bf6 (14...gf6 15.Rfd1 Bc4 16.d5–+) 15.Rfc1 Bc4 (better is 15...Kd8!? 16.Ne4 Be4 17.Be4–+) 16.Ne4 d5 17.Nd6 Ke7 18.Nc4 dc4 19.Rc4 (19.b5 a6 20.bc6 Nc6 21.Rc4 Rhc8–+) 19...Nd7 (19...a6 20.Rd1–+) 20.Rac1 (20.b5 cb5 21.Rc7 Kd6–+) 20...Nb6 21.R4c2 a6 22.d5 Be5 23.dc6 bc6 24.Rc5 Bd6 25.Rc6 Rhc8 26.a3 Rc6 27.Rc6 Rb8 28.h3 Be5 29.Bf1 Kd7 30.Rc2 Ra8 31.Be2 Ra7 32.Kg2 Kd6 33.Bf3 Rc7 34.Rd2 Ke7 35.Be2 Nc4 36.Bc4 Rc4 37.Rd5 Bb2 38.Ra5 Rc6 39.a4 Bc3 40.Rg5 Rg6 41.Rg6 hg6 42.b5 ab5 43.Kf3 Kd6 44.Ke4 Kc5 45.Kd3 Be5 46.f4 Bc7 47.Kc3 f5 48.Kb3 Bb6 49.Kc3 Kd5 50.Kd3 Ba7 51.Ke2 0–1. Pfueller,Volker – Petkov,Peter (1905), 2rd Berlin Germany, Senior Championship, 2010.

6.h3 Bd7 7.Nd4 Na6 8.a3 c5 9.Nc2 cb4=.

5.h3 Be6

6.Na3 Be7 7.d4 0–0 8.e3 a5 9.b5 e4+=.

6.Qa4 Bd7 7.Qc2 Be7 8.e4 0–0 9.a3 a5=.

6.Qc2 a5 7.b5 Be7 8.d4 ed4 9.Nd4 0–0=.

6.d3 Be7 7.e3 0–0 8.Be2 Nbd7 9.0–0 a5=.

6.e3 Be7 7.d4 0–0 8.Nbd2 e4 9.Ng5 d5 10.Ne6 fe6 11.c5 Nbd7 12.Be2 c6 13.a4 a6 14.0–0 Rf7 15.f4 ef3 16.Bf3 Qc7 17.b5 Raf8 18.bc6 bc6 19.Qe2 a5 20.Bc3 h6 (20...e5!?=) 21.Nb3 Attacking the isolated pawn on a5 21...Qg3 22.Na5 Ne4? (better is 22...Qc7!?+/–) 23.Be4+– Rf1 24.Rf1 Rf1 25.Kf1 de4 26.Nc6 Bg5 27.Bd2 Nf6 28.Qf2 Qh2 29.Ne5 Qh1 (29...Kh7 30.Nf7+–) 30.Ke2 (30.Qg1 Qg1 31.Kg1 Nd5+–) 30...Qa1 (30...Kh7 31.Nf7+–) 31.a5 (31.h4 Qa4 32.Kf1 Qa1 33.Be1 Bh4 34.Qh4 Qa6 35.Kg1 Qa1+–) 31...h5 (31...Qb1 32.Qf1 Qb7 33.Kf2+–) 32.Qg3 Bh6 33.Qg6 Qa4 (33...Qb1 34.Qf7 Kh7 35.a6 Qb5 36.Kf2+–) 34.Nf7 Qb5 35.Kf2 Qd3 (35...Qb2 36.Nh6 Kh8+–) 36.Nh6 (36.Nh6 Kh8 37.Nf7 Kg8 38.Bb4+–) 1–0. Fournier,Frederic (2145) – oexjjj (1980), Active, 2002.

6.e3 Bf5 7.g4 Bg6 8.d3 a5 9.b5 Nfd7=.

4.Nf3 g6

5.Qb3 Bg7+= 6.e3 0–0 7.d3 (7.d4 ed4 8.Nd4 a5+=) 7...Be6 (7...a5 8.ba5 Nc6 9.Be2+=) 8.Nbd2 (8.Be2 Nc6=) 8...Nbd7 (8...Nc6 9.b5 Na5 10.Qa4=) 9.Be2 Rb8 10.a4 a6 (10...a5 11.0–0=) 11.Qc2 (11.0–0 Re8=) 11...b6 (11...a5 12.ba5 Ra8 13.Bc3=) 12.0–0 Re8 (12...c5 13.b5=) 13.Rfd1 (13.d4 Bf5 14.Bd3 e4 15.Ne4 Ne4–+) 13...Bg4 (13...a5 14.b5=) 14.h3+= Be6 15.Ng5 Nf8 (15...Bf5 16.Nge4+=) 16.Bf3 h6 (16...Qe7 17.Ne6 Qe6 18.b5+/–) 17.Nge4 (17.Ne6 Ne6 18.Bc6 Re7+/–) 17...Ne4 18.Be4 (18.Ne4 f5 19.Ng3 Qg5+=) 18...Qg5 (18...f5 19.Bc6 Nd7 20.b5+=) 19.Nf3 White fights for the Initiative 19...Qe7 (19...Qh5 20.b5+=) 20.d4 (20.b5 f5 21.Bc6 Nd7+=) 20...f5 (20...ed4 21.Bd4 Bh3 22.Bg6 Bg2 23.Bf7 Qf7 24.Kg2+=) 21.Bc6+= Red8 (21...Nd7 22.d5 Bf7 23.e4+/–) 22.de5 (22.d5 Bd7+=) 22...de5+= 23.Be5 Be5 (23...Qb4 24.Bc7 Ba1 25.Bd8=) 24.Ne5 Qb4 25.Bd5 Bd5 26.cd5 Qd6 27.Nc6 Qf6? (27...f4+–) 28.Nb8 Rb8 29.Qc7 Rd8 (29...Qd8 30.Qf4+–) 30.Rab1 (30.d6 b5+–) 30...Nd7 (30...Rd6 31.Qc8+–) 31.Rb4 (31.Qb7 a5+–) 31...a5 (31...Qg5 32.a5 b5 33.Rd2+–) 32.Rb5 Kf8 (32...Qg5 33.Rd2+–) 33.Rc1 (33.Qg3 Kg8+–) 33...Qg5 34.Rc6 h5 (34...Ke8 35.Re6 Kf8 36.Rg6 Qg6 37.Qd8 Qe8 38.Qe8 Ke8 39.d6+–) 35.Rd6 (35.Rg6 Qh4+–) 35...Qe7 (35...Ke8 36.Re6 Kf8 37.Rg6 Qg6 38.Qd8 Qe8 39.Qg5+–) 36.Re6 (36.Rg6 Qh4+–) 36...Qg5 37.Rg6! Qg6 Deflection from d8 38.Qd8 Theme: Double Attack 38...Qe8 39.Qg5 Qf7 40.d6 Nc5 41.Rb6 Nd7 (41...Ke8 42.Rb8 Kd7 43.Qd8 Ke6 44.Qc8 Kd6 45.Rb6 Kd5 46.Qa8 Kc4 47.Qa5+–) 42.Ra6 (42.Ra6 Qe6 43.Ra5+–) 1–0. Thielemann,Joachim (2060) – Buss,Richard, GER–ch Seniors, 2001.

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

5.d4 ed4 6.Nd4 Bg7 =.

5.e3

5.e3 (--> 4.e3 g6 5.Nf3).

5.e3 Nbd7 6.Be2 Bg7 7.0–0 0–0 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 Nbd7).

5.e3 Bg7

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

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

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

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

6.Be2 0–0 7.Nc3 Nbd7 8.0–0 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 Nbd7 8.Nc3).

4.g3 c6

5.d4 d5!? 6.c5 e4 =+.

5.d4 Be7 6.de5+= de5 7.Qd8 Bd8 8.Be5 0–0 (8...Be7 9.c5+=) 9.Nd2 Nbd7 10.Bd6 Re8 11.Ngf3 Be7 (11...a5 12.b5+=) 12.Be7+/– Re7 13.Rd1 Ne4 (13...Kf8!?+/–) 14.Ne4+– Re4 15.e3 Ne5?? (better is 15...Re8+–) 16.Rd8 1–0. Trkn – guest582, ICC, 2004.

5.Bg2 Qb6 6.a3 Be6 7.Qc2 a5 8.ba5 Ra5 9.d3 Be7 10.Nf3 Nbd7 11.0–0 0–0 12.Nbd2 Rfa8 13.Rab1 Qa7 14.d4 Qa6 15.e4 Ra4 16.d5 Bg4 17.h3 Bf3 18.Bf3 Nc5 19.dc6 bc6 20.Bg2 Bd8 21.f4 Nfd7 22.h4 ef4–/+ 23.Rf4 Bf6–+ 24.Bf6 Nf6 25.e5 de5 26.Rf6 gf6 27.Qf5 Ra3 28.Qf6 Ne6 29.Rf1 Ra7 30.Bh3? Rg3 31.Kh2 Rg6 32.Qe5 Qb6 33.h5 Rg5 34.Qf6 Qc7 35.Kh1 Ra2 36.Nf3 Qg3 (36...Qg3 37.Qg5 Ng5 38.Nd2 Rd2 39.Rf2 Qf2 40.Bf5 Qe1#) 0–1. epiglotis (2095) – masterubu (2300), net–chess.com, 2001.

5.Bg2 Be7 6.Nc3 0–0 7.e4 Nbd7 8.Nf3 Qc7 9.0–0 Ne8 10.Qe2 f5 11.ef5 Rf5 12.d4 Rf8 13.Rfe1 Bf6 14.Ne4 ed4 15.Nd4 c5?? 16.Ne6+– Qc6 17.Nf6 Nef6 18.Bc6 bc6 19.Nf8 Kf8 20.bc5 dc5 21.Qe7 Kg8 22.Qe6 Kf8 23.Bf6 Nf6 24.Qc6 Bd7 25.Qa8 (25.Qa8 Kf7 26.Qa7+–) 1–0. wznf – mpuo, internet, 2009.

5.Bg2 Bf5 6.Nc3 Qb6 7.a3= Ng4 8.Nh3 Be7 9.f3 Nf6=+ 10.g4 Be6 11.g5 Nfd7–/+ 12.Na4 Qc7 13.Qc2 d5 14.cd5= Bd5 15.Nc3 Bc4 16.Ne4 b5 17.Ng3 g6 18.Ne4 a5= 19.d3 Be6 20.Nf4 Bf5 21.Nd5 Qd8 22.Ne7 Qe7 23.Qd2 ab4 24.ab4 Ra1 25.Ba1 Na6 26.Bc3 0–0 27.0–0 Be4= 28.fe4 Nb6 29.Rf6 Na4 30.Rc6 Nc3 31.Qc3+= Nb4 32.Rc5 Na2 33.Qe5 Qe5 34.Re5 Rb8 35.Re7 Nc3 36.Kf2?? b4–+ 37.Rc7 b3 38.Rc3 b2 39.d4 b1Q 40.Rc5 0–1. mrkt – dzbg, internet, 2009.

4.g3 Nbd7

5.Bg2 a6 6.d4 ed4 7.Bd4 Be7 8.Nf3 0–0 9.0–0 c5 10.bc5 dc5 11.Be3 Qc7 12.Bf4 Qb6 13.Qc2 Bd6 14.Be3 Ne5 15.Nbd2 Nf3 16.Bf3 Bg4 17.Rab1 Qc7 18.Rb7 Qc8 19.Rfb1 Bf3 20.Nf3+/– Rb8 21.Rb8 Bb8 22.Kg2 (22.Bg5 Qe6+/–) ˝–˝. Arievlis – M54, playchess.de, 2002.

5.Bg2 Nb6 6.d3 =.

5.Bg2 d5 6.cd5 Bb4 7.Be5 =.

5.Bg2 c6

6.Nc3 Nb6 7.d3 Be6 (7...d5 8.cd5 cd5 9.a3+=) 8.a4 (8.Nf3 d5 9.cd5 Nfd5=) 8...d5+= 9.a5 Nbd7 10.b5 (10.Qb3 Qe7 11.Ba3 dc4 12.dc4 Rb8=) 10...d4 (10...Bb4 11.Qa4 c5 12.Kf1 dc4 13.dc4 Bc4 14.Bb7+=) 11.bc6+= bc6 12.Nb1 Rb8 (12...Bb4 13.Nd2–/+) 13.Bc1 Bb4 Attacks the isolani on a5 14.Bd2 c5 (14...Qc7 15.Nf3–/+) 15.Nf3+= h6 (15...Qe7 16.0–0+=) 16.0–0 0–0 17.Bb4 (17.h3 Qe7+=) 17...Rb4 (17...cb4 18.Nbd2+=) 18.Nbd2 Qc7 19.Qc2 Rfb8 20.Rfb1 Rb1 (20...Qd6 21.Rb3+=) 21.Nb1 Rb4 22.Nbd2 Qb8 23.Rb1 (23.Ra2 Bg4+=) 23...Rb1 24.Qb1 Qb1 25.Nb1 e4 26.Ne1 ed3 (26...Ne5 27.Nd2 ed3 28.Nd3+=) 27.ed3 Bf5 (better is 27...Kf8+=) 28.Na3 (better is 28.f4!?+=) 28...Ne5–/+ 29.Bf1 (29.Kf1 Nd3 30.Nd3 Bd3 31.Ke1 Kf8–/+) 29...a6 30.Nb1 (30.Nb5 ab5 31.cb5 g5–+) 30...Nc4 (30...Nc6 31.Bg2 Na5 32.Nd2–+) 31.dc4 Bb1 32.Bd3 Bd3 (32...Ba2 33.Nf3–+) 33.Nd3–/+ Ne4 34.f3 Nd2 35.Nc5 Nf3 36.Kf2 Nd2 (36...Ne5 37.Ke2–/+) 37.Na6 (37.Ke2 Nc4 38.Nb3 Ne5–/+) 37...Nc4 38.Ke2 0–1. Sodol,Georgiy – Mokriak,Liudmila (2130), Klubis mem Odessa, 2000.

6.d3 g6 7.Nf3 Bg7 8.0–0 0–0 9.a4 Rb8 10.e4 b6 11.Na3 Bb7 12.Nc2 a5 13.b5 cb5 14.cb5 Nc5 15.Ne3 Qe7 16.Nc4 Ba8 17.Ba3 Rfc8 18.d4 ed4–/+ 19.Qd4? Nfe4–+ 20.Qd6?? Nd6 (20...Nd6 21.Rfe1 Qc7 22.Nd6 Qd6–+) 0–1. algernon (2135) – bonooman (2310), net–chess.com, 2003.

6.Nf3 e4 7.Nd4 Ne5 =.

5.Bg2 Be7

6.d3 0–0 7.Nc3 (7.Nf3 d5 8.0–0 Bb4 9.Ne5 Ne5 10.Be5 Qe7+=) 7...Re8 (7...c6 8.b5 cb5 9.Nb5+=) 8.Nf3 c6 9.0–0 Nf8 (9...d5 10.cd5 cd5 11.Qb3+=) 10.Qd2 Bg4 11.h3 Bf3 12.Bf3 Ng6 (12...d5 13.cd5 cd5 14.Nd1=) 13.b5 Rb8 (better is 13...Qd7 14.bc6 bc6=) 14.bc6+/– bc6 15.Bc6 Rf8 16.Rab1 Nh5 (16...Rb6 17.Bg2+/–) 17.Bf3 Nf6 18.h4 Qd7 19.h5 Nh5? (better is 19...Nh8+–) 20.Bh5 Qh3 (20...Qf5 21.Bf3+–) 21.Bf3 Qf5 (21...Rfc8 22.Nd5+–) 22.Nd5 Bg5 23.Qa5 Rb2 (23...Qd7+–) 24.Rb2 h5 (24...Qe6 25.Rfb1+–) 25.Bh5 Bh4 (25...e4 26.de4 Qe4 27.Bg6 Qg6 28.Qa7+–) 26.Bf3 Bg3 (26...Bg5 27.Qa7 Rc8 28.Rfb1+–) 27.fg3 Qh3 28.Kf2 1–0. mrkt – pjsw, internet, 2009.

6.d3 Nb6 7.Nc3 0–0!?+= 8.Nf3 a5 (8...d5 9.a3 (9.c5 d4 10.Nb1 Nbd7 11.0–0 Nd5 12.Qd2+=; 9.cd5 Bb4 10.0–0 Re8 11.Qb3 a5 12.Ne4+=) 9...d4 10.Na2 Nbd7 11.0–0 c5 12.e3=; 8...e4 9.Nd4 (9.Nd2 ed3 10.ed3 c5 11.b5 d5 12.0–0+=) 9...ed3 10.Qd3 c5 11.Nc2 Be6 12.Nd5=; 8...c6 9.0–0 Re8 10.b5 a6 11.a4 ab5 12.ab5=; 8...Re8 9.0–0 c6 10.b5 a6 11.a4 ab5 12.ab5=; 8...Qd7 9.0–0 Qg4 10.Qd2 Re8 11.h3 Qd7 12.a4=; 8...Bg4 9.0–0 a5 10.b5 Re8 11.Rb1 Qc8 12.Bc1=; 8...Bd7 9.Qd2 (9.0–0 Re8 10.a4 a5 11.b5 Bg4 12.Nd2=; 9.a4 a5 10.b5 Qc8 11.h3 Re8 12.Qc1=; 9.Rb1 Re8 10.0–0 Bg4 11.a4 a5 12.b5=; 9.Qc1 c6 10.0–0 Qc7 11.a4 a5 12.b5=; 9.Qc2 c6 10.0–0 Qc7 11.Qd2 Rfe8 12.a4=; 9.a3 c6 10.0–0 Re8 11.a4 a5 12.b5=; 9.Rc1 Re8 10.0–0 Bg4 11.h3 Bf5 12.a4=; 9.Nd2 c6 10.0–0 Re8 11.a4 a5 12.ba5=; 9.c5 dc5 10.bc5 Bc5 11.Ne5 Bc8 12.0–0=) 9...Re8 10.0–0 a5 11.b5 a4 12.c5=; 8...a6 9.0–0 (9.a3 a5 10.0–0 c6 11.b5 Qc7 12.Rb1=; 9.Rc1 a5 10.b5 a4 11.a3 Nfd7 12.0–0=; 9.Qd2 e4 10.Ng5 ed3 11.Qd3 h6 12.Nge4+=; 9.Qc2 c6 10.0–0 Bf5 11.a4 a5 12.b5=; 9.Qc1 d5 10.cd5 Nfd5 11.0–0 f6 12.Nd5=) 9...Re8 10.Qd2 a5 11.b5 a4 12.a3=; 8...Nfd7 9.a3 (9.Qd2 c6 10.0–0 Re8 11.a3 Nf6 12.b5=; 9.0–0 c6 10.a4 a5 11.ba5 Ra5 12.Nd2=; 9.a4 a5 10.b5 Nc5 11.0–0 Re8 12.Nd2=) 9...c6 10.0–0 a5 11.Qd2 f5 12.b5=) 9.b5 e4 10.Nd2 ed3 11.ed3 Re8 12.0–0=.

6.d3 Nb6 7.Nc3 a5 A) 8.a3 A1) 8...ab4 9.ab4 Ra1 10.Qa1 c6 11.Nf3 0–0 12.0–0=; A2) 8...Nbd7 9.b5 (9.Nf3 0–0 10.0–0 c6 11.b5 d5 12.cd5=) 9...0–0 10.Nf3 c6 11.Nd2 Rb8 12.Rb1=; A3) 8...0–0 9.Nf3 (9.b5 a4 10.Nf3 e4 11.Ng5 e3 12.h3+=; 9.Qd2 ab4 10.ab4 Ra1 11.Ba1 d5 12.c5+=) 9...e4 10.Nd4 ed3 11.Qd3 ab4 12.ab4=; B) 8.b5 0–0 9.Qc1 (9.a3 Qd7 10.Nf3 Re8 11.Rc1 Qf5 12.0–0=; 9.Na4 Na4 10.Qa4 Re8 11.Nf3 e4 12.de4+=; 9.Nf3 e4 10.Nd2 ed3 11.ed3 Re8 12.0–0=; 9.Qc2 Qd7 10.Nf3 Qf5 11.0–0 Re8 12.a3=) 9...Ra7 10.Nf3 Re8 11.0–0 a4 12.a3=.

6.d3 Nb6 7.Nc3 d5 8.c5 d4 9.cb6 dc3 10.Bc3 ab6 11.a3 Bd6 12.Nf3 =.

6.d3 Nb6 7.Nc3 Be6 8.Bb7+= Rb8 9.Bc6 (9.Bg2 a5 10.b5 0–0 11.Nf3 Nfd7 12.Qd2+/–) 9...Bd7 10.Bd7 Qd7 11.a4 (11.Nf3 0–0+= 12.0–0+=) 11...Qc6 (11...d5 12.a5 Na8 13.b5+=; 11...0–0 12.e4+=) 12.Nf3 Ng4 (12...0–0 13.0–0+=) 13.0–0 d5? (better is 13...0–0!?+/–) 14.h3 Nf6 15.Ne5 Qe6 16.Nd5 Nbd5 17.cd5 Nd5 18.b5 (18.Nc4 0–0+/–) 18...Bf6 (18...Qh3 19.Nc6 Ne3 20.fe3 Qg3 21.Kh1 Qh3 22.Kg1 Qg3 23.Kh1 Qh3 24.Kg1 Qg3=) 19.e4 (19.Nc6 Bb2 20.Nb8 Ba1 21.Qa1 0–0+–) 19...Ne7 (19...Be5 20.ed5 Qd5 21.Be5+–) 20.Qg4 Qb3? (better is 20...Qg4 21.hg4 c5+–) 21.Qd7 Kf8 22.Bd4 Be5 23.Be5 Ng6 (23...Rc8 24.Rfc1 Qe6 25.Qe6 fe6 26.Bd4+–) 24.Bc7 Re8 25.Bd6 Ne7 26.Rfc1 Qd3 (26...Qe6 27.Qe6 fe6+–) 27.Qe7! Re7 28.Rc8 1–0. pierre – joshua_2008, internet, 2008.

6.d3 d5 7.a3 a5 8.Qa4 =+.

6.Nf3 Nb6 7.d3 0–0 =.

4.g3 Be6

5.Na3 Be7 6.d4 (6.Bg2!? c6 7.Nf3+=) 6...ed4–/+ 7.Bd4 Nc6 8.Bc3 0–0 (8...d5 9.b5 Ba3 10.bc6 bc6 11.Qa4–/+) 9.Bg2 d5 10.c5 Ne4 11.Be4 de4 12.Qd8 Rad8 (worse is 12...Nd8 13.Nb5 Bc4 14.Nc7=) 13.Nc2 a6 14.h4 Rd7 15.Nh3 Bh3 (15...Rfd8!?–/+) 16.Rh3+= f5 17.Rd1 Rfd8 (17...Rd1 18.Kd1 b6 19.cb6 Rd8 20.Ke1 cb6 21.h5+=) 18.Rd7= Rd7 19.h5 Kf7 20.g4 f4 21.Bd2 Bg5 22.Rb3 (22.Bc3 Bf6+=) 22...Nd4 (better is 22...Ne5!?–/+) 23.Nd4= Rd4 24.Bf4 Bf4 25.e3 Be3 26.fe3 Rd5 27.Kf2 Ke6 28.Kg3 Ke5 29.Rb2 Rd3 30.Re2 h6 31.g5 hg5 32.Kg4 Rd1 33.Rg2 Kd5 (better is 33...Re1!? 34.Kg5 Re3+=) 34.Kg5+= Kc4 (34...a5!?+=) 35.Kf5+/– Rd5 36.Ke4 Rh5 37.Rg7 Kb4 38.Rc7 Rc5?? (38...Kc4+/–) 39.Rb7 (39.Rc5 Kc5 40.Ke5=) 39...Ka3+/– 40.Kd4 Rc8 41.e4 Rd8 42.Ke5 Re8 43.Kd5 Ka2? (43...Rd8!? 44.Kc6 Re8+=) 44.e5 (44.Ra7!? Rd8 45.Kc6 Kb3 46.Ra6 Re8+–) 44...Rd8 45.Ke6 Re8 (better is 45...Rd3+/–) 46.Kd5 Rd8 47.Kc6 Rc8 (better is 47...Re8 48.Kd6 a5+–) 48.Kd7 Rc1 (48...Ra8 49.e6+–) 49.Rb6 Rd1 (49...a5 50.e6 Rd1 51.Rd6+–) 50.Rd6 Rd6 (50...Rf1 51.Ra6 Kb3+–) 51.Kd6 a5 52.e6 a4 53.e7 a3 54.e8Q Kb1 55.Qe4 Kb2 56.Qd4 Kb1 57.Qb4 Ka2 (57...Kc2 58.Qa3 Kd2 59.Ke5 Kc2 60.Kd4 Kb1 61.Kc4 Kc2 62.Qa2 Kc1 63.Kd3 Kd1 64.Qd2) 58.Kd5 Ka1 59.Qa3 1–0. Fanha,Paulo Alexandre Mar (2010) – Neves,Pedro, POR–chB, 2005.

5.Qc2 c6 6.Bg2 Qb6 7.d3 Qb4 8.Nd2 Be7 9.Ngf3 0–0 10.0–0 Nbd7 11.Rab1 Qa5 12.d4 Rab8 (12...Qa2? 13.Ra1 Qa1 14.Ra1 ed4 15.Bd4+–) 13.Rfc1 ed4 (13...Qa2? 14.Ra1 Qa1 15.Ra1 ed4 16.Ra7+–) 14.Nd4 Qh5 (14...Qa2? 15.Ra1 Qa1 16.Ra1+–) 15.Ne6 fe6 16.Bd4 Nc5 (16...Qe2?? 17.Bf3 Qe5 18.Be5 Ne5 19.Re1+–) 17.a4 Nfd7 18.Ne4 Qf7 19.Be3 a6 20.a5 Ne4 21.Be4 Nf6 22.Bf3 Bd8 23.Qd2 Qd7 24.Bg2 Rf7 25.Bh3 Qe7 26.f3 c5 27.Rb2 b5 28.ab6 Rb6 29.Rcb1 Rb2 30.Qb2 Ne8 31.Qb8 Nc7 32.Bd2 h6 33.Ba5 Kh7 34.Qc8 Qd7 35.Rb8 Qc8 36.Rc8 Rd7 37.f4 Kg6 38.Bc7 Bc7 39.Be6 Re7 40.Rf8 Kh7 (40...Kh5 41.Bd5 Ba5+–) 41.Bg8+– (41.Bg8 Kg6 42.g4+–) 1–0. Degterev,Pavel (2240) – Garmatz,Walter, BI–2011–P–00013, 2011.

5.Bg2 Bc4 6.Bb7 Nbd7 7.Ba8 Qa8 8.Nf3+/–.

5.Bg2 Nc6 6.b5= Ne7 (6...Na5 7.Bc3 Nc4 8.d3=) 7.d3 (7.d4 e4 8.d5 Bf5 9.Bf6 gf6+/–) 7...c6+= 8.a4 g6 (8...Rc8 9.Nf3=) 9.a5 Bg7 (9...cb5 10.cb5 Qd7 11.a6+=) 10.a6 Qd7 11.ab7 Qb7 12.Ra6 d5 13.Be5 (13.Na3 cb5 14.cb5=) 13...0–0 (better is 13...cb5!? 14.Ra2 bc4 15.dc4 0–0=) 14.Qa4 cb5 15.cb5 Rfc8 16.Nc3 Ne8 17.Bg7 Ng7 18.Qa1 Ne8 19.Nf3 Qc7 (19...Nc7 20.Ra5+/–) 20.Nd1 (20.Ra3 Nd6+/–) 20...Qb7 21.Nd4 (21.Qa3 Nf5 22.g4 Ne7+/–) 21...Nc7 22.Ra5 a6 23.ba6 Ra6 24.Ra6 Qa6 (24...Na6 25.0–0+/–) 25.Qa6 Na6 26.Ne3 Rb8 (26...Nb4 27.Kd2+/–) 27.0–0 (27.Kd2 Nc5+/–) 27...h6 (27...Rb2 28.Ra1 Nb4 29.Ra7 Rb1 30.Nf1+/–) 28.f4 (28.Ra1 Nb4+/–) 28...Rb2 29.g4 Bc8 (better is 29...Nb4!?+/–) 30.Bd5+– (30.Bd5 Nb4 31.Bf3+–; 30.Nd5?! Nd5 31.Bd5 Bg4+/–) 1–0. Staberg,Karl Arne – Vuorimies,Tommi, corr SWE–FIN, 1995.

5.Bg2 c6

6.Qb3 =+.

6.d3 Be7 7.Nf3 0–0 8.0–0 Nbd7 9.Nbd2 Re8 10.Ng5 Bf5 11.e4 Bg6 12.a3 h6 13.Ngf3 Qc7 14.Nh4 Bh7 15.Nf5 Bf8 (15...Bf5 16.ef5 a5 17.Ne4+=) 16.f4 ef4 (16...Bf5!? 17.ef5 a5 18.fe5 de5=) 17.Rf4+= d5 18.ed5 cd5 19.c5 Ne5 20.Nh6 gh6 21.Rf6 Bg7 22.Rf1 (22.Rd6+/–) 22...Nd3? (better is 22...Bd3 23.Re1 Rad8=) 23.Bg7+– Kg7 24.Bd5 Re5? (better is 24...Re7 25.Nc4 Rd8 26.Qg4 Bg6 27.Qd4 Kh7+–) 25.Rf7 (25.Qg4 Rg5 26.Qd4 Qe5 27.Rf7 Kh8 28.Qe5 Ne5 (28...Re5?? 29.Bb7 Rg8 30.Nc4+–) 29.Rb7 Rd8+–) 25...Qf7 26.Bf7 Re1 27.Qe1 Ne1 28.Re1 Kf7 29.Nc4 Kf6 30.Nd6 b6 (30...Rb8+–) 31.c6 Bf5 (31...Bg8 32.Ne8 Kg5 33.c7+–) 32.Rf1 1–0. Fournier,Frederic (2245) – jaazziel (1975), Active, 2002.

5.Bg2 Nbd7

6.Qb3 A) 6...Rb8 A1) 7.Na3 b5 8.Bc6 a6 9.Nf3 Rb6 10.Bd7 Nd7 11.d4 c6 12.Bc3 bc4–/+; A2) 7.Bh3 Qe7 (7...Bh3 8.Nh3 Nb6 9.f4 Qd7 10.Nf2 Qe6 11.c5 Nc4 12.fe5 de5=; 7...c5 8.Be6 fe6 9.a3 Be7 10.Nf3 Qb6 11.Nc3 0–0 12.0–0 h6=; 7...a5 8.Be6 fe6 9.a3 Ra8 10.Nf3 ab4 11.ab4 Ra1 12.Ba1 Be7=) 8.Be6 Qe6 9.Nf3 c6 10.Nc3 Be7 11.d4 Qh3 12.d5 0–0+=; A3) 7.Nc3 b5 8.Nf3 c5 9.bc5 Nc5 10.Qc2 bc4 11.Ba3 Nfd7 12.Bc5 Nc5–/+; A4) 7.a4 a5 (7...Nb6 8.d3 d5 9.Nd2 dc4 10.dc4 Nbd7 11.Ngf3 b5 12.ab5 Rb5+=; 7...c5 8.b5 Be7 9.Nf3 0–0 10.0–0 Nb6 11.d3 a5 12.Nbd2 Nbd7=) 8.ba5 Nc5 9.Qc2 Ra8 10.f4 ef4 11.d4 Ncd7 12.Bb7 Rb8=; B) 6...c6 B1) 7.d4 ed4 8.Nf3 d5 9.Nd4 dc4 10.Ne6 cb3 11.Nd8 Bb4 12.Nc3 Rd8–/+; B2) 7.Bh3 Bh3 (7...Qe7 8.Nc3 e4 9.Rc1 Ne5 10.Nd1 Bh3 11.Nh3 Qd7 12.Nf4 Be7+=) 8.Nh3 d5 9.0–0 dc4 10.Qc4 Nb6 11.Qc2 Bd6 12