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1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3


5.Nf3 Qb6 6.a4 a6 7.c4 dc4 8.Bc4 ab5 9.ab5 (9.Bb5 Bd7=) 9...Ra1 10.Ba1 Bd7 (10...Be7 11.Be5 Nbd7 12.d4=) 11.Qb3 Be7 12.0–0 0–0 13.Nc3 (13.Rc1 Rd8=) 13...Qd8 (13...Rc8 14.Bb2+=) 14.Rd1+= b6 (14...Qa5 15.d4+=) 15.d4 (15.Na4 Ne4+=) 15...cd4 16.Nd4 (16.Na4 de3 17.Qe3 Qc7 18.Nb6 Bc5=+) 16...Bc5 (16...Qc7 17.Nf3+=) 17.Nc6 (17.Na4!? Qc7 18.Nf3+/–) 17...Qc7= 18.Nb8 Rb8 19.h3 (19.Na4 Bd6 20.f4 Rc8=) 19...Rc8 (19...Rd8 20.Na4=) 20.Be2 (20.Na4!?+/–) 20...Be7 21.Bf3 Ne8 (21...Qc5 22.Qb2=) 22.Na4 (22.Ne4 f5 23.Ng3 Kh8+=) 22...Nd6= 23.Be5 f6 (better is 23...Bb5!? 24.Qb5 Nb5 25.Bc7 Rc7 26.Nb6 h6=) 24.Bd6+/– Bd6 25.Bc6 (25.Qd3 Bh2 26.Kh1 Be8+–) 25...Bc6 (25...Rd8 26.Bd7 Qd7 27.f4+=) 26.Qe6 (26.bc6?! Kf7=) 26...Kh8 27.bc6 (better is 27.Rd6 Bb5 28.Nb6 Qc1 29.Kh2+/–) 27...Bh2? (better is 27...Rd8 28.Nb2 b5+/–) 28.Kh1+– Qc6?? (28...Be5 29.Nb6 Rb8+–) 29.Qc6 (29...Bc7 30.Qc7+–) 1–0. Fredek (2090) – Guest371000, Freundschaftspartie, 5m + 0s, 2005.

5.Nf3 Qa5

6.c4 Nbd7!? =.

6.c4 Ne4 7.Be2 Nd7 8.0–0 dc4 9.Na3 Nb6 10.Nc4 Nc4 11.Bc4 +/–.

6.c4 Ne4 7.Be2 Nd7 8.0–0 f6 9.a4 Nb6?? (better is 9...Nd6 10.cd5 ed5+/–) 10.d3+– Nc4 11.dc4 Qd8 12.Nc3 Nc3 13.Bc3 Be7 14.Qb3 0–0 15.Rfd1 Re8 16.cd5 ed5 (16...Bd6 17.Bd3+–) 17.Bc4! (17.Bc4 Kh8 18.Rd5+–) 1–0. pierred (2850) – omaini (1955), net–, 2015.

6.c4 Ne4 7.Be2 Nd7 8.0–0 f6 9.Qc2 Qb4?? (better is 9...Nd6 10.cd5 ed5+/–) 10.d3+– a6 (10...Nb6 11.a4 dc4 12.de4+–) 11.de4 (11.a3!? Qa5 12.de4 de4 13.Qe4 Be7+–) 11...de4 (11...dc4 12.Bc3 Qb5+–) 12.Bc3 (12.Bc3 ef3 13.gf3 ab5 14.Bb4 cb4 15.cb5+–) 1–0. pcmvr – omaini (1955), net–, 2015.

6.Be2 Bd7 7.a4 c4 8.0–0 Bb5? (better is 8...Bb4=) 9.Bc3 Bb4 10.ab5 Qb5 11.Na3 Ba3 12.Ra3 0–0 (12...Nbd7 13.Qa1 a6 14.Rb1+–) 13.Qa1 Qd7 14.Bf6 gf6 15.Qf6 h6 (15...Nc6+–) 16.d3 Qd8 (16...b5 17.Qh6 f6 18.Nd4+–) 17.Qh6 f6 (17...Nd7 18.Ng5 Nf6 19.e4+–) 18.Qg6 Kh8 19.dc4 Qe7 20.Rfa1 a6 21.Nd4 f5 (21...Rf7 22.cd5 e5 23.d6+–) 22.Qh6 Qh7 (22...Kg8 23.Ne6 Rf7+–) 23.Qf8 (23...Qg8 24.Qf6 Qg7 25.Qe6+–) 1–0. Trkn – guest6162, ICC, 2004.


6.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 c5 6.e3).

6.a3 Nbd7 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 c5 6.e3 Nbd7 7.c4).

6.c4 Be7 7.a4 b6 8.Be2 0–0 9.0–0 Bb7 10.d4 Nbd7 11.Nbd2 Re8 12.h3 Rc8 13.Rc1 Nf8 14.Ne5 Bd6 15.Bf3 Ne4 16.Be4 de4 17.dc5 Rc5 18.Bd4 Re5 19.Be5 Be5 20.Qc2 f5 21.Rfd1 Qg5 22.c5 bc5 23.Qc5 Nd7 24.Qa7 Bc8 25.Rc8 Rc8 26.Qd7 1–0. Woschkat – Albert, 1989.

6.Be2 b6 7.0–0 Nbd7 8.c4 dc4 9.Bc4 Bb7 10.d4 Be7 11.Nbd2 0–0 12.Rc1 Rc8 13.Qe2 Ne4 14.Rfd1 Nd2 15.Rd2 Qc7 16.Bd3 Bf6 17.Ba3 Qb8 18.dc5 Nc5 19.Bc5 Rc5 20.Rc5 bc5 21.Rc2 Rd8 22.Bc4 Qd6 23.Rd2 Bf3 24.Rd6 Be2 25.Rd8 Bd8 26.Be2 Kf8 27.Kf1 Ke7 28.Bc4 Kd6 29.Ke2 f6 30.Kd3 Bb6 31.Bb3 Bd8 32.Kc4 Bb6 33.f4 f5 34.Bc2 Ba7 35.h3 Bb6 36.g4 g6 37.e4 fg4 38.hg4 Ba7 39.Bd1 Bb6 40.Bf3 Ba7 41.g5 Bb6 42.Bg4 Ba7 43.f5 ef5 44.ef5 gf5 45.Bf5 Bb6 46.Bh7 Bd8 47.g6 Bf6 48.Bg8 a4 49.a3 Be7 50.Bd5 Bf8 51.b6 1–0. Strebel – Kropp, Wallertheim 1994.

6.c4 b6

7.a4 Bb7 8.Be2 Nbd7 9.0–0 Qc7 10.d3 (10.cd5 Nd5 11.d4 Bd6=) 10...Bd6 (10...dc4 11.dc4 Bd6 12.Nbd2+=) 11.Nbd2 Ng4 Now all is on h2 (11...0–0 12.cd5 Bd5 13.Qc2=) 12.h3 h5? (12...Ngf6 13.cd5 ed5 14.Nh4=) 13.Re1 (13.cd5!? ed5 14.Bg7+/– (worse is 14.hg4 hg4 15.Re1 Bh2 16.Kf1 Be5+=)) 13...dc4 (13...Ngf6 14.cd5 Bd5 15.e4+=) 14.Nc4 (14.Bg7? Bh2 15.Kf1 Nf2 16.Kf2 Qg3 17.Kf1 Rg8–+) 14...Bh2 (14...Ngf6 15.Rc1+/–) 15.Kf1+/– Bg3 (15...Ngf6!?+/–) 16.hg4 (16.fg3 Qg3 17.hg4 hg4 18.e4 Rh1 19.Ng1=) 16...hg4= 17.Kg1 (17.fg3 Qg3 18.e4 Rh1 19.Ng1 Qh2 20.Nd6 Ke7=) 17...Bh2 18.Kf1 Be5 (better is 18...Bg3 19.fg3 Qg3=) 19.Nce5+– (19.Be5?! gf3 20.Bf3 Rh1 21.Ke2 Bf3 22.gf3 Re1 23.Qe1 Ne5=) 19...Ne5 20.Ng1 Bg2 21.Kg2 Rh2 22.Kf1 (22.Kh2 Nf3 A double attack) 22...g3 23.fg3 Nc4 24.Bf3 (24.dc4 Qg3) 24...Qg3 25.Qe2 Nd2 (25...Re2?! 26.Re2 Nb2 27.Ba8 Nd3 28.Ra3=) 26.Qd2 Rd2 27.Bc6 Ke7–+ 28.Re2 Re2 29.Ne2 Qh3 30.Ke1 Rd8 31.Kd2 c4 32.Ba3 Kf6 33.Bb2 e5 34.d4 Qf5 35.Rg1 Qd3 36.Ke1 Qb1 37.Bc1 ed4 38.ed4 Rd4 39.Nd4? Qc1 40.Kf2 Qf4 41.Nf3 c3 42.Ke2 c2 43.Nd2 Qh2 44.Rg2 Qg2!! 45.Bg2 c1Q (45...c1Q 46.Bd5 g5–+) 0–1. Scholz,Guenther – Habermann,Arno, corr Germany, 1985.

7.Be2 Bb7 8.0–0 Be7 9.cd5 ed5 10.d3 0–0 11.Nbd2 Nbd7 12.Nh4 Re8 13.Nf5 Bf8 14.Rc1 g6 15.Ng3 Qe7 16.a4 Bg7 17.Rc2 Nf8 18.Qa1 h5 19.Re1 Rad8 20.Bf1 Ne6 21.Rcc1 Ng4 22.Bg7 Ng7 23.h3 Ne5 24.d4 Nd7 25.dc5 Nc5 26.Qa3 Qh4 27.Ra1 Nge6 28.Nf3 Qf6 29.Ne2 Ne4 30.Ra2 Rc8 31.Ned4 Rc3 32.Qb2 Rec8 33.Ne2 Rc2 34.Qb3 Ra2 35.Qa2 Rc4 36.Nf4 Nf4 37.ef4 Rb4 38.g3 Qc3 39.Re3 Qc5 40.Ne5 Qd4 41.Qc2 Qc5 42.Qa2 Rd4 43.f5 Rd2 44.Qa3 d4 45.Qc5 bc5 46.Re2 gf5 47.Nc4 Rd1–/+ 48.Na5 Bd5 49.b6? Rb1 50.b7 Bb7 51.Nb7 Rb7 52.Rc2 Rb1 53.Kg2 Ra1 54.Bb5 Nc3 55.Bd7 f4 56.gf4 Kf8 57.Kg3? Ke7 58.Bc6 Kd6 59.Be8? Ne4 60.Kf3 d3 61.Rb2 d2 (61...d2 62.Rd2 Nd2 63.Ke2 Ke7–+) 0–1. Nikitin,Aleksander (2010) – Plicner,Adam (2065), XVIII Int Chess Festival Poland, 2007.

7.Be2 Bb7 8.a4 Nbd7 9.0–0 Qc7 10.h3 (10.cd5 Nd5 11.d4 Bd6=) 10...h6 (10...Bd6 11.cd5 ed5 12.Nc3=) 11.d4 (11.cd5!? Nd5 12.Bc4=) 11...dc4+= 12.Na3 (12.Nfd2 cd4 13.Bd4 e5=) 12...cd4 13.Nc4 (13.Qd4 Ba3 14.Ra3 Bd5=) 13...de3 14.Ne3 (14.fe3 Rd8+=) 14...Rc8 15.Rc1 Qb8 (15...Bc5 16.Nd4–/+) 16.Nc4 (16.Rc8 Qc8 17.Ne5 Bc5+=) 16...Bc5–/+ 17.Nfe5 0–0 18.Bf3 Ne5 (18...Bf3 19.Qf3 Ne5 20.Be5+=) 19.Be5= Qa8 (19...Bf3 20.Qf3 Qa8 21.Qa8 Ra8 22.Bf6 gf6 23.Rfd1+=) 20.Bb7 Qb7 21.Bf6 gf6 22.Nd6 (22.Qh5 Kh7 23.Na5 Qa8+=) 22...Bd6 23.Qd6 Qb8 (23...Qe4 24.Ra1 Rb8 25.Rfe1=) 24.Qb8 (24.Qd4 f5=) 24...Rb8+= 25.Rfd1 Rfd8 26.Rd8 Rd8+= 27.Rc6 Rd4 28.Rb6 Ra4 29.Ra6 f5 30.b6 Kg7 31.b7 Rb4–/+ 32.Ra5 Rb7 33.f4 f6 34.Kf2+= h5 35.h4 Kf7 36.g3 Rd7 37.Rb5 Rd5 38.Rb7= Kg6 39.Rb6 e5 40.fe5 Re5 41.Kf3 Re4–/+ 42.Rb8 Rg4 43.Rg8 Kh7 44.Rg4 fg4–+ 45.Kf4 Kg7 46.Ke4 Kf8 47.Kf4 Ke7 48.Kf5 Kf7 49.Ke4 Ke6 50.Kf4 f5 51.Kg5 Ke5 52.Kh5 Kf6 (52...Kf6 53.Kh6 f4–+) 0–1. Scholz,Guenther – Stock,M, corr ICCF EU/M/GT/059 (year?).

7.Be2 Bb7 8.d4 cd4 9.ed4 (9.Bd4!? dc4 10.0–0=) 9...Bb4 (9...dc4 10.0–0+=) 10.Nbd2 dc4 11.Bc4 Nbd7 (11...Ne4 12.a3 Nd2 13.Nd2 Bd2 14.Qd2 Bg2 15.Rg1+=) 12.0–0 0–0 (12...Rc8 13.Rc1+=) 13.a3 Bd2 (13...Bd6 14.Bd3+=) 14.Nd2= Nd5 15.Rc1 Rc8 16.Qb3 (16.Re1 N7f6=) 16...N7f6 (16...Nf4 17.Nf3+=) 17.Qg3= Qd7 (17...Nh5 18.Qf3 Nhf4 19.Ne4=) 18.Bd3 (18.Nf3 Nh5 19.Qg4 Nhf4=) 18...Rc7 (18...Nh5!? 19.Qf3 Nhf4–/+) 19.Rc7 Qc7 (19...Nc7 20.Nc4 Ncd5 21.a4=) 20.Qc7 Nc7 21.Nc4 (21.Rc1 Rc8=) 21...Nfd5 22.Nd6 (22.Rc1 Nb5 23.Nb6 Nb6 24.Bb5 Bd5=) 22...Ba8 (22...Nf4 23.Rc1 (worse is 23.Nb7 Nd3 24.Ba1 Nb5–+) 23...Ne8 24.Nb7 Nd3 25.Rc2=) 23.Rc1 (23.g3 Rd8 24.Ne4 Ne7=) 23...Rd8 24.Ne4 (24.Be4 Kf8+=) 24...Nf4+= Black is in command 25.Bf1 (25.Rc7? Nd3 26.Nc3 Nb2–+) 25...Nb5 26.Bb5 (26.f3!? Be4 27.fe4+=) 26...Be4–/+ 27.f3 (27.g3!? Nd5 28.h3–/+) 27...Bd3–+ 28.Bd3 Nd3 29.Rc2 Nb2 (29...b5!? 30.Rd2 Nf4 31.g3–+) 30.Rb2–/+ Rd4 31.Rb6 g6 (31...Kf8 32.Rb3–/+) ½–½. Esteban Mendez,Jesus Maria – Rabadan,A, Gros op, 1996.

7.Be2 Bb7 8.cd5 ed5 9.d4 c4 =.

7.Be2 Bd6 8.0–0 =.

6.c4 Bd6

7.Nc3 0–0 8.d4 cd4 (8...dc4 9.Bc4 Nbd7 10.Rc1=) 9.Qd4 dc4 (9...a4 10.a3+=) 10.Rd1+= Be7 11.Qc4 (11.Qd8 Rd8 12.Rd8 Bd8 13.Bc4 Bc7+/–) 11...Nbd7 12.a3 (12.Be2 b6+=) 12...b6 13.Be2 (13.Ne4 Nd5+=) 13...Bb7= 14.0–0 (14.Qf4 Rc8=) 14...Rc8 15.Qa2 Qc7 16.Nd4 (16.Rd4 Bf3 17.Bf3 Bd6=) 16...Ne5 (16...Nc5 17.Rd2=) 17.h3= g5 (17...Nd5 18.Rc1 Qd6 19.Rfd1=) 18.Rc1+= Qb8 19.Ne6 (19.Rfd1 g4+=) 19...fe6= 20.Qe6 Rf7 21.Nd5! (worse is 21.Qb6 Bc5 22.Qe6 Re8=) 21...Nd5 (21...Bd5 Deflection from c8 22.Rc8 Theme: Double Attack) 22.Be5 (22.Be5 Qa8 23.Bh5+–) 1–0. Beutler,Manfred – Tamas,G, corr, 1964.

7.Nc3 Nbd7 8.d4 =.

7.d4 0–0 =.

7.Be2 Nbd7 8.Nc3 (8.0–0 0–0=) 8...0–0 (8...dc4 9.Bc4 Nb6 10.Be2=) 9.0–0 (9.d4 dc4 10.Bc4 Nb6=) 9...b6 (9...dc4 10.Bc4 Nb6 11.Bb3=) 10.d4 Bb7 11.Rc1 (11.cd5 Nd5 12.Qd2 Nc3 13.Qc3 Qf6=) 11...Rc8 (11...dc4 12.Na4=) 12.Na4 (12.cd5 Nd5 13.Nd5 Bd5=) 12...cd4 13.Nd4 Nc5 (13...Qe7 14.Bf3=) 14.Nc5 bc5 15.Nf3 (15.Nb3 Ne4=) 15...Qc7 (15...Ne4 16.Bd3=) 16.h3 (16.Bf6 gf6 17.Rb1 dc4=) 16...Rcd8 (16...e5 17.cd5 Nd5 18.Qa4=) 17.Qc2 (17.Bf6 gf6 18.Qc2 Rd7+=) 17...Rfe8 (17...Ne4 18.cd5 ed5 19.a4=) 18.Rfd1 (18.Bf6 gf6 19.Rfd1 f5+=) 18...Ne4= 19.a4 f6 (19...f5 20.Rb1+=) 20.Nd2 (20.cd5 ed5 21.Nd2 f5+=) 20...Bh2 (20...Nd2 21.Rd2 d4 22.Bd3=) 21.Kf1+= White gets the initiative 21...Nf2 (better is 21...Nd2!? 22.Qd2 d4=) 22.Kf2+/– d4 23.Bf3 Qg3 24.Kf1 de3 25.Ne4 Qf4 (25...Be4 26.Be4 Qf4 27.Bf3 Rd2 28.Rd2 ed2+–) 26.Ke2+– (26.Nc5 Bf3 27.Nd3 Rd3 28.Rd2 Bg4 29.Rf2 e2 30.Ke1 Qc1 31.Bc1 Rd1 32.Qd1 ed1Q) 26...Bg1 (better is 26...e5 27.Rd8 Rd8+–) 27.Bc3?? (better is 27.g3 Qc7 28.Rd8 Rd8 29.Rg1+–) 27...e5?? (better is 27...f5 28.g3 Qf3 29.Kf3 Be4 30.Qe4 fe4 31.Ke4 Bf2+/–) 28.Rg1+– Rd4 (28...f5 29.g3 (29.Nc5 e4 30.Ke1 Qh2–+) 29...Qf3 30.Kf3 Be4 31.Qe4 fe4 32.Ke3+–) 29.Bd4 (29.g3!? Qh6+–) 29...ed4 30.Nc5 (30.g3!? Qc7 31.g4 Kh8+–) 30...Bf3 31.gf3 Re5 (31...d3 32.Kd3 Qd6 33.Kc3 Qc5+–) 32.Nd3 (better is 32.Ne4+–) 32...Qh2= 33.Kd1?? (better is 33.Ke1 Qg1 34.Ke2 Qg2 35.Ke1 Qg1 36.Ke2 Qg2 37.Ke1 Qg1=) 33…Qg1 (33...e2 34.Ke1 Qg1 35.Kd2 Qe3 36.Ke1 Rg5 37.Qe2 Rg1#) ½–½. Kreuzer,Uwe – Schillinger, 1981.


6.a4 b6 7.c4 Bb7 8.d4 Nbd7 9.Be2 Bd6 10.0–0 0–0 11.Nbd2 Qc7 12.h3 Ne4 13.Rc1 ab5 14.ab5 Ra2 15.Qb3 Ra5 = 16.Rfd1 Rfa8 17.Nb1 dc4 18.Bc4 Ndf6 19.Be2 Nd5 20.Nbd2 Nb4 21.dc5 bc5 22.Ne4 Be4 23.Rd4 Na2 24.Re4 Nc1 25.Bc1 Ra1 26.Rc4 Qa5 27.Rc2 Rd8 28.g3 Qc7 29.Kg2 Qb7 30.Bb2 Raa8 31.Kh2 Qd5 32.Qc3 f6 33.Rd2 Qf5 34.Qc4 Bg3 35.Kg3 Rd2 36.Nd2 h5 37.Bd3 h4 38.Kg2 Qd5 39.Qd5 ed5 40.Bf5 Kf7 41.Bd7 d4 42.ed4 cd4 43.b6 1–0. Engelhardt – Moebius, 1973.

6.a4 c4 7.Nc3 Bb4 8.Be2 0–0 9.0–0 Bd7 10.d3 (10.Qb1 Qa5=) 10...Bc3 (10...Qa5 11.Qe1 A) 11...ab5?? 12.ab5 Qa1 13.Ba1+– (13.Qa1?! Ra1 14.Ra1 Bc3 15.Bc3 Bb5=); B) 11...Rc8–/+) 11.Bc3= ab5 12.ab5 Ra1 13.Qa1 Bb5 14.dc4 dc4 (14...Ba6 15.Nd2=) 15.Qb2 (15.Rd1 Nbd7+=) 15...Ba6= 16.Ne5 (16.Rd1 Qc8=) 16...Qc7 ½–½. Krivoshapko,Alexander – Mikhailovsky,Viktor, 2012.

6.a4 Bd7 7.Nc3 d4 8.ed4+/– cd4 9.Nd4 e5 10.Nf3 Bb4 11.Ne5+– 0–0 12.Bc4 ab5 13.ab5 Ra1 14.Ba1 Qe7 15.d4 Ne4 16.Qd3 Bf5 17.0–0 Ng3?? 18.Qg3 (18.fg3?! Bd3 19.cd3 Bc5+=) 1–0. marre – oppo, internet, 2010.

6.ba6 ba6 7.Be2 Nc6 8.Ne5 (8.Ne5 Ne5 9.Be5=+; 8.c4 Rb8 9.cd5 ed5=+ (< 9...Qd5 10.Bf6 gf6 11.Nc3+=)). Woelfelschneider,Peter – Grund,Karl, corr, 1990.

6.Nc3 Be7 7.a4 0–0=+ 8.Be2 Nbd7 9.0–0 b6 10.d3 Bb7 11.ba6 Ba6 12.Qd2 Ne8 13.Nb5 Nd6 14.c4 Bb5 15.ab5+= Bf6 16.Ra6 Qe7 17.Rfa1 Rad8 18.Ra7 g6 19.R1a6 Bb2 20.Qb2 dc4 21.dc4 e5 22.Qc2 f6 23.e4 Qe6 24.Ra1 Nc8 25.R7a3 Rfe8 26.h3 Nf8 27.R1a2 h5 28.Qc1 Re7 29.Ra8 Red7+= 30.Qe3 Qf7 31.Nh4 Kh7 32.Kh2 Ne6 33.Nf3 Ra7 34.R2a7 Na7 35.Rd8 Nd8 36.Qd2 Qe7 37.Bd1 Ne6 38.Qd5 Nc8= 39.Qc6 Nd6 40.Nd2 Qd8 41.g3 h4 42.Qd5 hg3 43.fg3 Nc7 44.Qd3 Kg7 45.Bg4 Qf8 46.Qe3 Kf7 47.Qa3 Qa8 48.Qa8 Na8 49.Kg2 Nc7 50.Kf2 f5 51.Bd1 Ke6 52.ef5 gf5 53.g4 e4 54.gf5 Ke5 55.f6 Kf6 56.Bg4 Ke5 57.Ke3 Nce8 58.h4 Ng7 59.h5 Ngf5 60.Bf5 Nf5 61.Ke2 Kd4 62.Nf1 Kc3 63.Ke1 Kd3 64.Ng3 Nh6 65.Kf2 e3 66.Kf1 Kc4 67.Ke2 Kd4 68.Kd1 Kd3 69.Ne2 Nf5 70.Ke1 c4 71.Nf4 Kd4 72.Ne2 Ke4 73.Kd1 Kd3 74.Nf4 Kd4 75.Ne2 Kc5 76.Nc3 Kb4 77.Nd5 Kb3 78.h6 Nh6 79.Ne3 Kb4 80.Kd2 Nf7 81.Nd5 Kc5 82.Nc7 Nd6 83.Kc2 Nb5 84.Na6 Kd4 85.Kb2 Nc3 86.Nb4 Nd1 87.Kc1 Nf2 88.Nc6 Kc3 89.Na7 Nd3 90.Kb1 Kd2 91.Nb5 c3 92.Na3 b5! 93.Nc2 b4 94.Nd4 Ne5 (94...Ne5 95.Nb3 Kd1–+) 0–1. COMP – Paige, 1999.

6.a4 ab5

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

7.Bb5 Bd7 8.Nc3 Nc6 9.Be2 Be7 10.0–0 0–0 11.Nb5 Ne4 12.c4 Nb4 13.d4 Bc6 14.cd5 Bd5 (worse is 14...Qd5 15.Nc7 Qf5 16.Na8 Ra8 17.Ne5+/–) 15.Nd2 cd4 16.Bd4 Nd2 17.Qd2 Nc6 18.Bc3 Bc5 19.g3 Qe7 20.Qb2 f6 21.Rfd1 Rfd8 22.Bf1 Rd7 (22...Qf7 23.Bg2=) 23.Qc2= Rad8 24.Rac1 f5 25.Bg2 Qf7 26.Bd5 Rd5 27.Rd5 Rd5 28.Bd4 Nd4 29.Nd4 Qd7 (29...Bd4 30.Qc8 Qf8 A) 31.ed4?! Qc8 (worse is 31...Rd4 32.Qe6 Kh8 33.Rc8+/–) 32.Rc8 Kf7=; B) 31.Qe6 Kh8 32.Qd5 (32.ed4?! Rd4 33.Rc8 Rd8 34.Rd8 Qd8+/–) 32...Be3 33.fe3+–) 30.Nb3 Be7 31.e4 fe4 32.Qe4 b6 33.Rc4 Bf6 34.Kg2 ½–½. Boehnke,Hartmut (2085) – Ballard,David (2035), corr WS/H/171 ICCF, 2009.

7.Bb5 Bd7 8.Nc3 Bd6 9.d3 0–0 10.Bd7 Nbd7 11.Nb5 Bb8 12.c4 e5 13.Qc2 e4 14.Nd2 Ne5 15.Be5 ed3 16.Bf6 dc2 17.Bd8 Rd8 18.cd5 Ra4 19.0–0 Ra1 20.Ra1 Rd5 21.Nf1 Rd1 22.Ra8? Rf1 23.Kf1 c1Q 24.Ke2 Qc2 25.Kf3 Qd1 26.Ke4 f5 27.Kf5 Qd5 28.Kg4 Qg2 29.Kh4 Qf2 30.Kh3 Qe3 31.Kg2 Qe2 32.Kh3 Qh2 33.Kg4 Qe2 34.Kh3 Qf3 35.Kh4 Qf4 36.Kh5 g6# 0–1. Bethemonth – Meylan, Nizza 1981.

7.Bb5 Bd7 8.c4 dc4 9.Bc4 Nc6 10.Qb3 (10.0–0!?=) 10...Na5+= 11.Qc2 Nc4 12.Qc4 Bc6 13.Nc3 Nd5 14.Nb5 Nb6 (14...Nb4!? 15.0–0 Bf3 16.gf3 Rc8+=) 15.Qf4= Bb5 16.ab5 Ra1 17.Ba1 f6 18.0–0 Bd6 19.Qe4 Qd7 20.Qb1 0–0 21.d4 Rc8 22.dc5 (22.Rc1 c4=) 22...Rc5+= b5 becomes a target (worse is 22...Bc5 23.Rd1 Bd6 24.e4=) 23.Qa2 Rb5 24.Nd4 Rb4 (24...Rh5 25.h3 Nd5 26.Rd1+=) 25.Qe6 Qe6 26.Ne6 Kf7 (better is 26...Nc4!?+=) 27.Nd8+= Ke8 28.Nb7 Be7 29.Na5 Rb5 30.Nc6 Bd6 31.g3 Nd7 32.Rd1 Bc7 33.Rc1 Rb7 34.Kg2 Bb6 35.Rb1 Rc7 36.Nb4 Rc8 37.Nd5 Rc6 38.h4 Rd6 39.Nb6 Nb6 40.Bd4 Nd7 41.f4 Kf7 42.Rb7 h5 43.Kf3 f5 44.Ra7 g6 45.Ra8 Nf6 46.Ra7 Ke6?? (46...Nd7 47.Bc5 Rd5+/–) 47.Rg7+– g5? (47...Ne4 48.Rg6 Kd5 49.Rg8+–) 48.Rg6 (48.fg5!? Ne4+–) 48...g4 49.Ke2 Kf7 50.Rf6 Rf6 51.Bf6 Kf6 (51...Ke6+–) 52.Kd3 Ke6 53.Kc4 Kd6 54.Kd4 Ke6 55.Kc5 Kf6 (55...Ke7 56.Kd5 Kd7 57.Ke5+–) 56.Kd6 (56.Kd6 Kf7 57.Ke5+–) 1–0. Jambrich,Jaromir (1695) – Gonda,Jan (1665), Bratislava Doprastav op, 2005. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c5 5.e3 a6 6.a4 ab5)

6.a4 Bd6

7.c4 0–0 8.Be2 Re8 9.0–0 e5 10.d4 e4 (10...ed4 11.ed4 Be6 12.dc5 Bc5 13.cd5 Nd5 14.Nd4=) 11.Nfd2= Nbd7 (11...Qc7 12.h3 Nbd7 13.dc5 Bh2 14.Kh1=) 12.Qc2 (12.cd5 Qc7=) 12...Qe7 (12...cd4 13.Bd4 Qc7 14.h3=) 13.Rd1= b6 (13...cd4 14.Bd4 Be5 15.Be5 Qe5 16.Nc3+=) 14.Nf1 (14.cd5 Nd5 15.dc5 Nc5+=) 14...Bb7 (14...dc4 15.Bc4 Bb7 16.Nc3=) 15.Nc3 (15.ba6 Ba6 16.cd5 Be2 17.Qe2 Rec8=) 15...cd4 16.ed4 a5 17.Qb3 dc4 (17...Rac8 18.Ne3=) 18.Bc4+= Rac8 (18...Ng4 19.h3 Nh6 20.Bc1+=) 19.Ne3 g6 20.Ba3 Ba3 21.Ra3 Kg7 22.h3 (22.Ra2 Rc7+=) 22...Qd6 (22...Rc7 23.Ncd5 Bd5 24.Nd5 Nd5 25.Bd5=) 23.Qa2 (worse is 23.Bf7 Rc3 24.Qc3 Kf7+=) 23...Rf8 24.Be2 Rc7 25.Qb2 Rfc8 26.g4 (26.Rb3 h6=) 26...Kg8 (26...h6 27.Rb3+=) 27.Bf1 h5 28.Bg2 hg4 29.hg4 Qf4 30.Ne2 Qg5 31.Qa1 (31.Qd2!?–/+) 31...Ng4–+ 32.d5 (32.Qb2 Ne3 33.Re3 Rc2–/+) 32...Ne3 33.Re3 Bd5 34.Rg3 Qf6 35.Nd4 (better is 35.Qa3 Rc5 36.Qe3–/+) 35...Nc5 36.Qa3 (36.Nf5 Qa1 (36...Qf5?! 37.Bh3 Qh5 38.Bg4–+) 37.Ra1 Kf8–+) 36...Bb7 (better is 36...Nd3 37.Rgd3 ed3 38.Bd5 Qg5 39.Bg2–+) 37.Qe3? (37.Ne2–+) 37...Rd8 (worse is 37...Na4 38.Re1–+) 38.Kh2 (38.Rd2 Rcd7 39.Nb3 Rd3 40.Rd3 Rd3–+) 38...Rcd7 0–1. Abreu Suarez,Isauro (2020) – Hidalgo Santana,Fernando (2140), 27th Torneo de Navidad Fundacion CajaCa, 2016.

7.d3 ab5 8.ab5 Ra1 9.Ba1 Qa5 10.Nbd2 Qb5 11.Bf6 gf6 12.Be2 Nc6 13.0–0 Qa4 14.c4 Qb4 (14...Qd1 15.Rd1 Kd7 16.d4 cd4 17.ed4–/+) 15.Qa1 (15.Qc2 Qa3=) 15...Ke7 16.Rb1 Qa5 17.Qb2 Nb4 18.cd5 Nd5 19.Nc4 Qc3 20.Nd6 Kd6 21.Qb5 Qc2 (21...e5 22.d4 cd4 23.ed4=) 22.Bf1 (22.d4 cd4 23.Nd4 Qc5+=) 22...h5 (22...Nc3 23.Qb6 Kd7+=) 23.Rb2+/– Qc3 24.Rb3 (better is 24.Nd2!? Ke7 25.Nc4+/–) 24...Qc2 25.Rb2 ½–½. mr5reasons1 (1660) – gameover05 (1615),, 2013.

7.Be2 0–0 8.0–0 Bd7 9.c4 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Nd5 13.Qb3 Nb6 14.Be2 Qe8 (14...Qc7 15.Qb2 f6 16.d4=) 15.Nc3+= c4 (15...f5!?+=) 16.Bc4+/– Nc4 17.Qc4 Qe7 18.Ne4 (18.Ne4 f6 19.d3+/–) 1–0. CountFromHolland – Olivsky,, 2002.

7.Be2 0–0 8.Nc3 e5 9.d3 Be6 10.0–0 h6 11.Nd2 Nbd7 12.Bf3 Re8 13.e4 d4 14.Nd5 Bd5 15.ed5 Nb6 16.Ne4 ab5 17.ab5 Nfd5 18.c4 Ra1 19.Ba1 Nb4 20.Nd6 Qd6 21.Bb7 f5 22.g3 e4 23.de4 Qe7 (23...fe4!? 24.Re1 Qg6–/+) 24.Qh5 Rf8 25.Bd5 N4d5 26.ed5 Nc4 27.Rc1 Ne5 28.Qe2 f4 29.Kh1 Qd6 30.Re1? (better is 30.Qe4!?–/+) 30...Qd5–+ 31.Qe4 Qe4 32.Re4 Nd3 33.Bd4 cd4 34.Rd4 Nf2 35.Kg2 Ng4 36.Rf4 0–1. Rooijen van,Peter – Biro Jr,Istvan, IECG, 2009.

6.ba6 Na6

7.Bb5 Bd7 8.a4 Bb5 9.ab5 Nc7 10.Nc3 Bd6 11.Ra8 Na8 12.d3 Nb6 13.0–0 0–0 14.Ne2 Be7 (14...Qe7 15.c4=) 15.Qa1 Nbd7 16.c4 Qc7 17.cd5 ed5 18.Ng3 Rc8 19.Nf5 Bf8 20.Bf6 Nf6 21.Nh6 gh6 22.Qf6 Bg7 23.Qf5 Rd8 24.d4 c4 25.Ra1 Qd7 26.Qd7 Rd7 27.Ra8 Bf8 28.Kf1 Rc7 29.Ke2 c3 30.Kd1 Kg7 (30...c2!? 31.Kc1 Rc3+–) 31.Kc2 Bb4 32.Rd8 Rc4 33.Rd5 b6 34.Rd7 Ba5 35.Ne5 Rb4 36.Kc3 Rb5 37.Kc4 Rb2 38.Rf7 Kg8 39.e4 Rc2 40.Kd5 Rc8 41.f4 Re8 42.Rb7 Rd8 43.Nd7 Bd2 44.f5 b5 45.e5 b4 46.e6 Bg5 47.Ke5 1–0. Trkn – guest2857, ICC, 2004.

7.Bb5 Bd7 8.Bd7 Qd7 9.0–0 (9.Bf6 gf6 10.a4 (10.Nc3 Rg8 11.Rg1 Bg7 12.g4 Bh8 13.d4 cd4 14.ed4 Qc6 15.Kd2+=; 10.0–0 Bg7 11.c3 f5 12.a4 c4 13.Na3 Nc5 14.Nb5 0–0 15.Qc2+=) 10...Rg8 11.0–0 e5 12.Nc3 Qg4 13.Ne1 Qd1 14.Rd1 Nb4 15.Nd3=) 9...Be7 (9...Qd8 10.Qe2 (10.Nc3 Be7 11.Rb1 0–0 12.Re1 Nc7 13.Ba1 Ra7 14.a4 Qc8 15.Qc1+=; 10.d3 Bd6 11.Na3 0–0 12.Nb5 Bb8 13.Qe2 Qe7 14.a4 Nb4 15.Rfb1=; 10.Bf6 Qf6 11.Nc3 Bd6 12.Qb1 0–0 13.Qb7 Nb4 14.Rfc1 Ra3 15.Qd7=) 10...Nc7 11.Nc3 Be7 12.a4 Ra5 13.Nb5 0–0 14.Bc3 Ra8 15.Be5=; 9...Bd6 10.Bf6 gf6 11.Nc3 Rg8 12.a4 Nb4 13.Nb5 Be7 14.d3 e5 15.Kh1=) 10.d3 (10.Ne5 Qd6 11.c4 0–0 12.d3 Rfb8 13.Qf3 Nb4 14.a3 Nc2 15.Ra2+=; 10.a4 0–0 11.Nc3 Nb4 12.Ne5 Qd8 13.Nb5 Qa5 14.c4 Ra6 15.d3=; 10.Nc3 0–0 11.Ne5 Qe8 12.a4 Nb4 13.Nb5 Qd8 14.d3 Nd7 15.Nd7=) 10...Nb4 (10...0–0 11.c4 dc4 12.Ne5 Qc7 13.Nc4 b5 14.Ne5 Bd6 15.f4+=) 11.Nbd2 (11.a3 Nc6 12.c4 0–0 13.Nbd2 Rfd8 14.Qb3 Ra7 15.Rfd1+=) 11...0–0 (11...Na2 12.Qb1 Qa4 13.Nb3+– 0–0 14.Nc1 Qc6 15.Na2+–; 11...Ra2 12.Ra2 Na2 13.Ne5 Qa4 14.c4 Qd1 15.Rd1+=) 12.Ne5 (12.Nb3 c4 13.a3 cb3 14.ab4 Ra2 15.Qb1+=) 12...Qa4 13.Nb3 Rfd8 (13...Bd6 14.a3 Na6 15.Nd2+=) 14.Ng4 (14.a3 Nc6 15.Qf3+=) 14...Ne8 (14...Na2 15.Bf6 gf6 16.Nc1+=; 14...Nd7 15.Ne5+=) 15.a3 Nc2 16.Nh6 gh6 17.Qc2 c4 18.Qc3 Bf6 19.Nd4 Nd6 20.Qd2 cd3 21.Nf5?? (better is 21.Qd3 Nc4 22.Rfb1–/+) 21...Nc4–+ (21...ef5?! 22.Bf6 Ne4 23.Qb2 Nf6 24.Qf6+=; 21...Nf5?! 22.Bf6 Rdc8 23.Qd3+=) 22.Nh6 Kf8 23.Qd3 Bb2 (23...Nb2?! 24.Qh7 Qe8 25.Ng4–+) 24.Qh7 Nd6 25.Rac1 (25.Ra2 Be5 26.f4–+) 25...Bc1 26.Rc1 Rac8 (26...Qa3?! 27.Qg8 Ke7 28.Rc7 Rd7 29.Qg5 Ke8 30.Qg8 Ke7 31.Qg5 Ke8 32.Qg8 Ke7=) 27.Qg8 Ke7 28.Qg5 Kd7 29.Rf1 Qc2 30.Ng4 Kc7 31.h3 Kb8 32.Qe7 Qc7 33.Qf6 Ne4 34.Qd4 f5 35.Ne5 Qc3 36.Qb6 (36.Rb1–+) 36...Qe5 37.Rb1 Rd7 38.a4 Rc6! (38...Rc6 39.Qc6 Rc7 40.Qe8 Ka7–+) 0–1. Koper,Konrad (1660) – Hemmerling,Jaroslaw (1985), Szachowe Lato Poznan Poland, 2010.

7.Bb5 Bd7 8.Bd7 Nd7 A) 9.Nc3 A1) 9...Bd6 10.0–0 (10.Nb5 Qe7 11.Nd6 Qd6 12.Qb1 0–0 13.d3 b5 14.0–0 Rfb8 15.Rc1+=; 10.e4 Nc7 11.ed5 ed5 12.Qe2 Qe7 13.a4 d4 14.Nb5 Nb5 15.ab5+=; 10.Rb1 0–0 11.0–0 Nc7 12.a4 e5 13.d3 Qf6 14.Qe1 Qg6 15.a5+=) 10...0–0 11.e4 d4 12.Nb5 Bf4 13.c3 d3 14.Qb3 Re8 15.c4=; A2) 9...Qa5 10.Qe2 (10.0–0 Bd6 11.Qe2 Nc7 12.a4 0–0 13.Nb5 Nb5 14.ab5 Qb4 15.Bc3+=; 10.Ne2 b5 11.0–0 Nb6 12.d3 f6 13.Bc1 Bd6 14.Bd2 Qa3 15.Bc1+=; 10.e4 d4 11.Ne2 Qa4 12.a3 Bd6 13.d3 b5 14.c3 Qd1 15.Kd1+=) 10...Be7 11.0–0 0–0 12.Rfb1 Nb4 13.d3 Nc6 14.Nd2 Bf6 15.Nb5=; A3) 9...Nf6 10.d3 (10.Qe2 Nb4 11.d3 d4 12.Nd1 de3 13.Ne3 Na2 14.0–0 Be7 15.Rfe1+=; 10.Rb1 Be7 11.0–0 0–0 12.a3 Nc7 13.Qe2 Ra5 14.a4 Qd7 15.Ba1+=; 10.0–0 Be7 11.d3 0–0 12.Qe2 Qa5 13.Rab1 Rfd8 14.Nd2 Nc7 15.a4+=) 10...Bd6 11.0–0 Nc7 12.a4 0–0 13.Nb5 Nb5 14.ab5 Qe7 15.c4=; A4) 9...Be7 10.a3 (10.Rb1 0–0 11.0–0 Bf6 12.a3 Nc7 13.Re1 Qb8 14.Ra1 b5 15.Qe2+=; 10.d3 0–0 11.0–0 Bf6 12.Rb1 Qa5 13.Nb5 Nb4 14.Bf6 Nf6 15.a3+=; 10.0–0 Bf6 11.Rb1 0–0 12.a3 Nc7 13.Re1 Qb8 14.d4 Qa7 15.a4+=) 10...0–0 11.0–0 Bf6 12.Qe2 Ne5 13.Ne5 Be5 14.f4 Bf6 15.Rab1+=; B) 9.0–0 B1) 9...Nf6 10.c4 (10.Qe2 Nc7 11.Bf6 Qf6 12.Nc3 c4 13.Rab1 b5 14.Nb5 Nb5 15.Rb5+=; 10.d3 Bd6 11.Na3 0–0 12.Nb5 Bb8 13.c4 Qe7 14.Qb3 Rd8 15.a3=; 10.Bf6 Qf6 11.Nc3 Bd6 12.Qb1 0–0 13.Qb7 Nb4 14.Rfc1 Ra3 15.Qd7=) 10...dc4 11.Bf6 Qf6 12.Qa4 Kd8 13.Nc3 Bd6 14.Qc4 Qf5 15.Rab1+=; B2) 9...Nc7 10.d3 (10.a4 Nf6 11.Bf6 Qf6 12.Nc3 Na6 13.e4 d4 14.Nb5 Be7 15.a5=; 10.Qe2 Nf6 11.Nc3 Be7 12.a4 0–0 13.Rfb1 Na6 14.d3 Nb4 15.Nb5=; 10.a3 Nf6 11.d3 b5 12.c4 bc4 13.dc4 Bd6 14.a4 0–0 15.a5+=) 10...Nf6 11.c4 dc4 12.dc4 Be7 13.Qb3 Qc8 14.Be5 0–0 15.Rd1=; B3) 9...Qa5 10.a4 (10.a3 f6 11.Re1 Qb6 12.Bc1 Bd6 13.Nc3 Qc6 14.Rb1 0–0 15.e4=; 10.d3 Qb4 11.Bc3 Qg4 12.Nbd2 Bd6 13.e4 d4 14.Nc4 Bc7 15.Bd2+=; 10.Bc3 Qa4 11.d3 b5 12.Bb2 Bd6 13.Bg7 Rg8 14.Bb2 Qb4 15.Bc3=) 10...Nb4 11.d3 Nb6 12.Nc3 Be7 13.Nd2 0–0 14.Nb3 Qa6 15.Nb5=; B4) 9...Qb6 10.Bc3 (10.Qc1 f6 11.Nc3 Bd6 12.a4 0–0 13.a5 Qc6 14.Re1 Nb4 15.Ba3+=) 10...f6 11.d3 Bd6 12.a4 0–0 13.a5 Qc6 14.Nbd2 b5 15.Bb2+=.

7.Nc3 Bd7 8.Be2 Rb8 (8...Be7 9.0–0=) 9.d4 (9.0–0 Be7+=) 9...c4 10.0–0 b5 11.a3 b4 12.ab4 Nb4 13.Ba3 Be7 (13...Ra8 14.Nb1=) 14.Na2 0–0 15.Bb4 Bb4 16.Nb4 Rb4 17.Ne5 Ne4 18.Qe1 (18.Ra7 Bb5 19.Bh5 f6+=) 18...Rb2 19.f3 Nd6 20.Qc3 Rb5 (20...Rb7 21.Rfb1 Rb1 22.Rb1=) 21.Rab1 (21.Ra7!? Be8 22.Rfa1+=) 21...f6 22.Nd7 Qd7 23.Rb4 Rfb8 24.Rb5 Nb5 25.Qb4 Qc7 26.Rb1 Qd7 27.e4 Kf7 (27...Rb7!?=) 28.ed5+= Qd5? (better is 28...ed5 29.Bc4 dc4 30.Qc4 Kf8 31.Qb4 Kg8 32.Qb3 Kh8+/–) 29.Qc5 (29...Nd4 30.Qc7 Kg6 31.Qg3 (31.Rb8? Ne2 32.Kf2 Qd2–+; 31.Qb8?! Ne2 32.Kf1 Qd2 33.Qe8 Kh6 34.Qe6 Nf4+=) 31...Kh6 32.Qh4 (< 32.Qb8 Ne2 33.Kf1 Qd2=+) 32...Kg6 33.Rb8 Ne2 34.Kf2+/–; better is 29.Qc4 Qd4 30.Qd4 Nd4 31.Rb8 Ne2 32.Kf2+–) 1–0. revrevrevrev – gui, Live Game Caissa's Web, 2004.

7.c4 Nb4 8.a3 Nc6 9.d4 Be7 10.cd5 ed5 11.dc5 Bc5 12.Qc2 Qe7 13.Be2 0–0 14.0–0 h6 15.Nbd2 Bd6 (< 15...Ba3 16.Qb3 Bb2 17.Ra8+/–) 16.Rfd1 Bd7 (< 16...Ba3 17.Qb3 Bb2 18.Ra8+/– (< 18.Qb2 Bg4=+)) 17.Qd3 Ne5 18.Ne5 Be5 19.Be5 Qe5 20.Nf3 Qe4 21.Qd2 Ra4 22.Qb2 Bc6 23.Rd4 Qe7 24.Ra4 Ba4 25.Nd4 Ra8 26.Bb5 Ne4 27.h3 Bb5 28.Nb5 Ra4 29.Rd1 Qc5 30.Rb1 Nf6 31.Nd4 Qa3 32.Qb7 Ra8 33.Qc7 Re8 34.Rb7 Qf8 35.Nf5 Ne4 36.Ne7 Kh8 37.Nd5 Kg8 38.Ne7 Kh8 39.f3 Ng5 40.Nf5 Rc8 41.Qe5 Re8 42.Qc3 Rc8 43.Qb2 Qc5?? (Better is 43...Kh7+/–) 44.Qg7 1–0. Struck,Bernd Dieter – Schenk,Dieter, GER–ch Seniors, 2001.

7.d4 c4 8.Ba3 Ba3 9.Na3 Bd7 (better is 9...Qa5 10.Nd2 Qa3–+) 10.Nb1 0–0 11.c3 b5 12.a3 Qa5 13.Be2 Rab8 14.0–0 b4 15.cb4 Nb4 16.Nbd2 (16.ab4 Qa1) 16...Na6 17.Qc2 Ba4 18.Qa2 (18.Qc1 Nc7–/+) 18...Rb7 (better is 18...c3!? 19.Rab1 cd2 20.Qd2 Qd2 21.Nd2 Nc7–+) 19.Rab1=+ Rfb8 20.Ne5 (20.Rb7 Rb7 21.Rb1 Rb1 22.Qb1 Nc7=+) 20...Bb3 21.Nb3 cb3 (better is 21...Rb3!? 22.a4 R3b4–/+) 22.Qb2+= Ne4? (better is 22...Ra8+=) 23.Nc6+– Qc3? (better is 23...Qa4 24.Nb8 Nb8+–) 24.Nb8 (24.Ba6?! Qc6 25.Bb7 Qb7+/–) 24...Rb8 25.Ba6 Qa5 26.f3 Nd6 (26...Nd2 27.Rbc1 Qa6 28.Qd2 b2+–) 27.Bd3 Nc4 28.Bc4 dc4 29.Rfc1 Rc8 (29...Qa6 30.Rc3+–) 30.Rc3 (better is 30.Qb3! g6 (30...cb3?? 31.Rc8 Qd8 32.Rd8) 31.Qc3 Qg5+–) 30...h6 31.Rbc1 (better is 31.Qc1 Rc7+–) 31...Qa4 (31...Rc6 32.f4+– (32.Rc4 Rc4 33.h3 Rc1 34.Qc1 Qf5–/+)) 32.h3 (better is 32.Rb3! Ra8 33.Rb8 Kh7 34.Ra8 Qa8 35.Rc4 Kg6+–) 32...Rc6 33.Kf2 f6 34.Ke2 Kf7 35.Kd2 Ke7 36.g3 Kd6 37.f4 f5 38.Ke2 g6 39.Kf3 h5 40.e4 fe4 41.Ke4 Qb5 42.Qe2 (42.Ke3 h4+–) 42...Qd5?? (42...b2 43.Kf3 bc1R 44.Rc1 Qd5 45.Kf2 Qd4 46.Kg2 Ke7=) 43.Ke3+– Rc7 (43...g5 44.Rc4 gf4 45.gf4 Rc4 46.Qc4 Qc4 47.Rc4+–) 44.Qf3 (better is 44.Rc4 Rc4 45.Qc4 Qb7+–) 44...Qb5 (44...Ra7 45.Qe4 Ra3 46.Qe5 Qe5 47.de5 Kd5 48.Rd1 Kc5+–) 45.Qe4 Kd7 (45...h4 46.Qe5 Qe5 47.fe5 Kd7 48.Rc4+–) 46.Qg6 Qa4 (46...Kd6+–) 47.Qf7 Kd6 48.Qf8 Kd7 49.Qg7 Kd6 50.Qe5 Kd7 51.d5 (51...Qa6 52.Rb3+–; better is 51.Qc7! Kc7 52.Rc4 Qc4 53.Rc4 Kb6 54.Rb4 Kc7 55.Rb3 Kd8+–) 1–0. slavisa11 – Mirjana5, Live Game Caissa's Web, 2004.

6.c4 ab5

7.cb5 b6 8.a4 Bb7 9.Be2 Nbd7 10.0–0 Bd6 11.Nc3 0–0 12.d4 Qe7 13.Bd3 e5 14.de5 Ne5 15.Be2 Rfd8 16.h3 Bc7–/+ 17.Qc2? Qd6 18.Ba3?? Nf3 19.Bf3 Qh2# 0–1. mic (2200) – vanadis (2380), net–, 2008.

7.cb5 Bd6 8.Be2 0–0 9.0–0 Re8 10.d4 c4 11.Nc3 Nbd7 12.Qc2 Nf8 13.Rfd1 Bd7 14.a4 Ng6 15.e4 de4 (better is 15...Bb4!? 16.e5 Nh5=) 16.Ne4+/– Ne4 (16...Ne4 17.Qe4 Rc8+/–). Lightofsea – Artyom,, 2002.

7.cb5 Be7 8.a4 b6 9.d4 c4 10.Ne5 Qd6 (10...0–0 11.Be2+=) 11.Ba3= Qc7 12.Be7 Qe7 13.Qd2 Bd7 (13...Ne4 14.Qb2+=) 14.Qb2 0–0 15.Nc3 Rc8 16.Be2 Ra5 17.0–0 Be8 18.Rfb1 Nbd7? (better is 18...Nfd7 19.Nd7 Bd7=) 19.Nc6+– Qd6 20.Na5 ba5 21.b6 Rb8 22.b7 e5 (22...Nf8 23.Qb6 Bc6 24.Qa5 Rb7 25.Rb7 Bb7 26.Rb1+–) 23.Qb5 ed4 24.ed4 Nf8 25.Qa5 Ne6 (25...Bc6 26.Qa7 Qc7 27.a5 Rb7 28.Rb7 Qb7 29.Qb7 Bb7 30.a6+–) 26.Qb4 (better is 26.Qa7!? Qf4 27.g3 Qd6+–) 26...Qf4 27.Qb6 (27.a5 Nd4 28.a6 Ne4 29.Ne4 Ne2 30.Kh1 Qe4+–) 27...Nd4 28.a5 Nd7? (better is 28...Qd2 29.Qc7 Rb7 30.Qb7 Qc3+–) 29.Qb2 Nc6 (29...Nf6 30.a6 Nc6+–) 30.Nd5 Qe4 31.Bf3 (31.Ne3 Nd4 32.Bc4 Nf8+–) 31...Qe6 (31...Qh4+–) 32.Nc7 Qd6 33.Ne8 Re8 34.Bc6 Nc5 (34...Qc6 35.a6 c3+–) 35.Be8 Nd3 36.b8Q 1–0. Jambrich,Jaromir (1695) – Pisar,Juraj, Bratislava Doprastav op, 2005. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 c5 5.e3 a6 6.c4 ab5)

7.cb5 Be7 8.Be2 0–0 9.0–0 Nbd7 10.a4 b6 11.Qc2 Bb7 12.Rc1 Rc8 13.d3 d4 14.e4 e5 15.Nbd2 Ne8 16.a5 ba5 17.Nc4 f6 18.Ra5 Nd6 19.Rb1 Nc4 20.Qc4 Kh8 21.Ra7 Qb6 22.Rba1 Ra8 23.R7a3 Rfb8 24.Ra8 Ra8 25.Ra8 Ba8 26.Bd1 Qc7 27.Bb3 Qd8 28.Qe6 Nf8 29.Qg8# 1–0. Machete99 – guest1216, ICC, 2002.

7.cd5 ed5 8.Bb5 Bd7 9.Bd7 Nbd7 10.0–0 Bd6 11.Nc3 0–0 12.Nb5 Bb8 13.Qc2 Ra6 14.Ng5 Bh2–/+ 15.Kh2 Ng4 16.Kg1 Qg5 17.f3 Nh6 18.Kf2 Rg6 19.g4 d4! 20.ed4 Re8 21.Rae1 Ng4! 22.fg4 Qf4 (22...Qf4 23.Kg2 Qg4 24.Kh2 Qg2#; 22...Qh4 23.Kf3 Qg4 24.Kf2 Qg2#) 0–1. Kamper,Marco – Parado,Dominado (1850), Recklinghausen–ch, 2004.

6.c4 dc4

7.Nc3= ab5 8.Nb5 Bd7 9.Bc4 Be7 10.0–0 0–0 11.a4 Nc6 12.d3 Nd5 13.Qe2 Bf6 14.Rfb1 Nb6 15.Bb3 Na5 16.Bc2 Bb2 17.Rb2 Qf6 18.d4 Nac4 19.Rba2 cd4 20.Nbd4+= Rfc8 21.a5 Nd5 22.a6 Ra6 23.Ra6 ba6 24.Ra6 Nb4 25.Ra7 Nc2 26.Rd7 Nd4 27.Rd4 Ne5 (27...Nb6 28.Rd1=) ½–½. Luzuriaga,Norberto Horacio – Heinisch,Uwe, corr, 2000.

7.Bc4 ab5 8.Bb5 Nc6 9.Bc6 bc6 10.0–0 Be7 11.Qb3 Ba6 12.Rc1 0–0 13.a4 Rb8 14.Qc3 Be2 15.Ne5 Qd6 16.d4 Nd5 17.Qd2 cd4 18.Nc6 Bh5 19.Ba3 de3 20.fe3 Qd7 21.Ne7 Kh8 22.Nd5 ed5 23.Bf8 Rf8 1–0. Bonetti,Shane – MrSuav_eh, ICC, 2002.

6.c4 Be7

7.a4 b6 8.Na3 Nbd7 9.Be2 Qc7 10.Rc1 a5 11.0–0 e5 12.cd5 e4 13.Nd4 Nd5 14.Nf5 Bf6 15.Ng7 Bg7 16.Bg7 Rg8 17.Qb3 N7f6 18.Bf6 Bh3! 19.g3 Nf6 20.Rfd1 0–0–0 21.d4 Rg5 22.dc5? Rd1 23.Bd1 Be6 24.Qb2 Rc5 25.Rc5 Qc5... ½–½ (62). Schiffler – Kiel, corr 1950.

7.d4 ab5 8.cd5 0–0 9.de6 Be6 10.Bb5 Ra2 11.Ra2+= Ba2 12.0–0 Nc6 13.dc5+/– Bc5 14.Qc2 ½–½. aspasio (2210) – backgammon (2220), ICC, 1999.


6.c4 a6 7.a4 (7.cd5 ed5 8.ba6 Be7=) 7...ab5 (7...Bd6 8.Bf6 Qf6 9.Nc3=) 8.ab5 Ra1 9.Ba1 dc4 10.Na3 Be7 11.Nc4 0–0 12.Qa4 (12.d4 cd4 13.Qd4 Nbd7=) 12...Nfd7 (12...Bb7 13.Be2=) 13.Qa7 Bf6 (13...f6 14.Bd3+=) 14.Bf6 Nf6?? (better is 14...Qf6 15.Nd6 Qe7+=) 15.Qb8+– Nd5 (15...Nd7 16.Qg3+–) 16.Nfe5 (better is 16.e4 Nf6+–) 16...Nb4 (16...Qe7+–) 17.Nb6 Nc2 (17...Nd5 18.Nc8 Qc8 19.Qc8 Rc8 20.Bc4+–) 18.Kd1 Nb4 19.Nc6 (19.Bc4 Nd5 20.Nc8 Qc8 21.Qc8 Rc8+–) 19...Qf6 (19...Nc6 20.bc6 (worse is 20.Qc8 Qc8 21.Nc8 Rc8 22.bc6 Rc6+–) 20...Qe8 21.Bb5+–) 20.Qa8 Bd7 (20...Nc6 21.Qc6 Qd8+–) 21.Qf8! Kf8 22.Nd7 Kg8 23.Nf6 Kf8 24.Nb4 cb4 25.b6 gf6 26.b7 b3 27.b8Q Kg7 28.h4 b2 29.Qb2 1–0. bihyjt – ttban, internet, 2017.

6.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

6.c4 g6 7.d4 Bb7 (7...Bg7 8.Bd3=) 8.Nbd2 (8.cd5 ed5 9.dc5 bc5=) 8...dc4 (8...Bg7 9.dc5 bc5 10.cd5 ed5 11.Rc1=) 9.Bc4 Nbd7 10.0–0 Bd6 (10...Bg7 11.Qe2+=) 11.Ne5 (11.Be2 0–0+=) 11...0–0 12.Nd7 (12.Ndf3 a6+=) 12...Nd7 13.Qg4 (13.f4 a6+=) 13...h5 (13...cd4!? 14.Bd4 Qc7=) 14.Qe2 (14.Qh3 Qe7+=) 14...Qh4 15.h3 (15.f4 Rac8+=) 15...cd4 16.ed4 (16.Bd4!? Rfd8 17.Rac1+=) 16...Qf4= 17.g3 Qf5 18.Kh2 Nf6 (18...h4 19.Qd3=) 19.Rfe1 (better is 19.Rac1=) 19...Ng4?? (19...h4 20.Rec1 Kg7–/+) 20.hg4+– hg4 21.Ne4?? (better is 21.Kg1+–) 21...Be4+= 22.Qe4 Qf2 23.Qg2 Bg3 24.Kh1 Qg2 25.Kg2 Be1 26.Re1 Rfc8 (26...Rac8 27.Bb3 Rfd8 28.Kg3=) 27.Bb3 Kf8 (27...a5 28.d5 a4 29.Bf6 ab3 30.Rh1 Ra2 31.Kg3 Rc3 32.Bc3+/–) 28.Kg3 (28.d5 ed5 29.Bf6 a5+=) 28...a6 (28...a5 29.a4 (worse is 29.Kg4 a4 30.Ba3 Kg8–/+) 29...Ra7 30.Kg4=) 29.ba6 (29.d5 A) worse is 29...ab5 30.de6 fe6 31.Re6+= (31.Be6?! Rc2 32.Rb1 Rd8=); B) 29...ed5 30.Bd5 ab5 31.Ba8 Ra8=) 29...Ra6+= 30.Kg4 b5 (30...Ra5 31.Rh1 Ke8 32.Bc1+=) 31.Rh1 (31.Re5 Rb8=) 31...Ke7 (31...Rd8 32.Bc3+=) 32.Re1 (32.Bc1 Rc7+=) 32...b4 (32...f6 33.Rh1+=) 33.d5= ½–½. Streisel – Moebius, corr DDR, 1972.

6.d4 c4 7.Nbd2 (7.Be2 a6 8.ba6 Ra6+=) 7...Bb7 (7...Bd7 8.a4–/+) 8.Ne5 (8.e4 Ne4 9.Ne4 de4=) 8...Nbd7 9.f4 (9.Be2 Qc7 10.Ndf3 Ne5 11.de5 Ne4+=) 9...Ne5 (9...Qc7 10.Bc3+=) 10.fe5= Nd7 11.Qg4 (11.Qf3 Qc7 12.e4 de4 13.Ne4 Bd5=) 11...Qe7 (better is 11...a6 12.ba6 Ra6+=) 12.Be2? (12.a3 f6=) 12...f5 (better is 12...Qb4 13.Bc1 Qc3–+ (13...Qb5?! 14.0–0+=)) 13.ef6+= Nf6 14.Qh3 c3 (14...Qb4 15.Qe6 Kd8 16.0–0 Qb2 17.Rf6 Qa1 18.Rf1 Qf1 19.Nf1+–) 15.Bc3= Rc8 16.Bb2 (16.e4 Qc7 17.Qe6 Kd8=) 16...Rc2 17.Bc1 Bc8 18.Qg3 Rd2?? (better is 18...Qb4 19.Bd3 Rc3+=) 19.Bd2+– Ne4 20.Qe5 (20.Qb8!? Qb7 21.Qb7 Bb7+–) 20...Nd2+/– 21.Kd2 Qb4 22.Kd1 Qb2?? (better is 22...Qa4 23.Ke1 Bb4 24.Kf2 0–0 25.Bf3 Qa3+=) 23.Rc1+– Bb4 (23...Bd7 24.Qb8 Ke7 25.Qa7 Ke8 26.Qb8 Ke7 27.Qb6 Qa2+–) 24.Rc8 (24.Rc8 Kf7 25.Rf1 Kg6 26.Qh5#) 1–0. Roczniak,Jan – Barwicki,K, corr Poland, 1987.

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Bd6 10.0–0 Bd7 11.c4 0–0 12.d4 dc4 13.Bc4 Qc7 14.Nbd2 (14.dc5 Qc5 15.Bf6 gf6+=) 14...h6 (14...cd4 15.Bd4 e5=) 15.dc5+/– Bc5 16.Bf6 gf6 17.Qb3 Bc8 18.Ne4 Be7 19.Ng3 Nd7 20.Nd4 Ne5 21.Be2 Bb7 22.f4 Bd5 23.Qb1 Nc4 24.Bc4 Qc4 25.Rc1 Qa2 26.Qa2 Ba2 27.Ne4 Bd5 28.Nc6 Ba3 29.Nf6 Kg7 30.Nh5 Kg6 31.Ra1 Bc5= 32.g4 Be3 33.Kf1 Bc6 34.bc6 Rc8 35.Ke2 Bc5 36.Kd3 Rc6 37.Ra8 f5 38.Rg8 Kf7 39.Rg7 Kf8 40.h3 Be7 41.Rg6= fg4 42.hg4 b5 43.Rh6 b4 44.Rh8 Kf7 45.g5 b3 46.Rb8 Kg6 47.Ng3 Bd6 48.Rb3 Bf4 49.Ne4 Bg5 50.Ng5 Kg5 51.Ke4 Kf6 ½–½. CountFromHolland – saemi, HCL–E818, 2003.

6.Be2 Nbd7 7.0–0 Bb7 8.c4 Bd6 9.cd5 ed5 10.d4 0–0 11.Nc3 (11.dc5 bc5 12.Nc3 Rc8=) 11...Re8 (11...c4 12.Qc2=) 12.a4 c4 13.g3 (13.Qc2 Qe7=) 13...Rc8 (13...Qe7 14.Qc2+=) 14.Nd2 (14.Qc2 Bb4+=) 14...Bb4 (14...a5 15.ba6 Ba6 16.Bf3+=) 15.Qc2 Nf8 (15...Qe7 16.Bf3+=) 16.Bf3 (16.Ba3 Ba5=) 16...Ne6 (16...Qd6 17.Rfc1+=) 17.Bg2 Ng5 18.Rae1 (18.Qf5 Nge4 19.Nde4 de4=) 18...Qd7+= 19.Nf3 Nf3 20.Bf3 ½–½. Dettmann,Holger – Kross,Gunnar, Landesliga2 West9900, 1999.

6.Be2 Be7 7.0–0 0–0 8.d3 Bb7 9.c4 dc4 10.dc4 Qd1 11.Rd1 Rd8 12.Rd8 Bd8 13.Ng5 h6 14.Bf3 Bf3 15.Nf3 Nbd7 16.Nc3 Bc7 17.Rd1 Rd8 18.e4 e5 19.Re1 Re8 20.Nh4 g6 21.Nf3 Bb8 22.Nd2 Kg7 23.Rd1 Nf8 24.Nf1 Ne6 25.Ne3 Nd4 26.f3 Bc7 ½–½. Stubbs – Isgro, Telecomm 1995.

6.c4 dc4

7.Na3 Bb7 8.Nc4 Be7 9.Nce5 0–0 10.Qc2 h6 11.Bd3 Nbd7 12.Nc6 Bc6 13.bc6 Qc7?? (13...Nb8 14.Ne5 Bd6=) 14.cd7+– Nd7 15.0–0 Rfd8 16.Bh7 (16.Rac1 Bf6+–) 16...Kh8 17.Be4 Rac8 18.Rfc1 Nf6 (18...c4 19.Rab1+–) 19.Rab1 Qd7 20.Ne5 Qd6 (20...Qe8 21.Bb7 Rc7+–) 21.Nf7 (21.Nf7 Kg8 22.Nd6 Rd6 23.Bf6 Bf6 24.d4+–) 1–0. usingprogram (2070) – woka30, kurnik, 2011.

7.Bc4 Bb7 8.0–0 Nbd7 9.d3 g6 (9...Bd6 10.Nbd2=) 10.Nbd2 Bg7 11.Bb3 (11.Ne4 Qe7+=) 11...0–0= 12.Nc4 Bf3 (12...Qc7 13.Qe2=) 13.Qf3+= (worse is 13.gf3 Nd5+=) 13...Qc7 14.Rad1 Rad8 15.e4 h6 16.Qh3 (16.d4 Nh5+=) 16...Kh7 (16...a6 17.ba6 b5 18.Ne3+=) 17.Bc2 (17.f4!?+/–) 17...Ng8 18.Bg7 Kg7 19.f4 f5 20.e5 Rf7 (20...Ne7!?+/–) 21.Nd6+– Re7 22.Bb3 Nf8 23.Qg3 (23.d4 cd4 24.Rd4 Red7+–) 23...Kh7 (23...Rd6 24.ed6 Qd6 25.Rde1+/–) 24.h4 (24.d4!?+–) 24...Rd6+/– 25.ed6 Qd6 26.Qe1 Nf6 27.Rd2 Ng4 28.Bd1 (28.Rf3 Qd7=) 28...Qd4= 29.Kh1 Ne3 30.Rf3 Nd1 (30...Nd5 31.Qf2=) 31.Qd1+= Nd7 32.Re2 Nf6 33.Qb3?? Attacks the backward pawn on e6 (33.Qe1 Qd7+=) 33...Ng4?? (better is 33...Qa1 34.Kh2 Ng4 35.Kg3 Qg1–+) 34.g3 Qa1 35.Kg2 Kg7 36.Qb2 (36.Re6 Re6 37.Qe6 Qb2 38.Kg1 Qh2 39.Kf1 Qh1 40.Ke2 Qg2 41.Ke1 Qf3 42.Qe7 Kg8 43.Qe8 Kh7 44.Qd7 Kh8 45.Qe8 Kg7 46.Qe7 Kg8 47.Qe8 Kg7 48.Qe7=) 36...Qb2 37.Rb2 Rd7 38.Rc2 Rd4 39.Rc4 Kf6 40.Rd4 cd4 41.Kg1 e5 42.Rf1 e4 43.de4?? (better is 43.Rc1 Ne3 44.Rc6 Kf7 45.Kf2+=) 43...fe4–+ 44.Rc1 Kf5 45.Rc7 d3–+ 46.Rd7? Ke6 47.Rd4 e3 48.Kf1 Nf2 49.Ke1 d2 50.Ke2 d1Q 51.Rd1–/+ Nd1 52.Kd1 Kf5 53.Ke2 Kg4?? 54.Ke3+/– Kg3 55.h5! gh5 56.f5 h4 57.f6 h3 58.f7 h2 59.f8Q h1Q 60.Qg7 Kh2 61.Qh6 Kg2?? 62.Qh1 (better is 62.Qg6 Kh3 63.Qh5 Kg3 64.Qh1 Kg4 65.Qf3 Kg5 66.Qf7 a6 67.Ke4 ab5 68.Qg7 Kh4 69.Kf4 b4 70.Qg4#) 62...Kh1 63.Kd4 Kg2 64.Kd5 Kf3 65.Kc6 Ke4 66.Kb7 Kd5 67.Ka7 (67.Ka7 Kc5 68.Ka6+–) 1–0. Junghaenel,Dieter (1685) – Mueller,Guenter, Brandenburg Seniors op, 2001.

7.Bc4 Be7 8.0–0 0–0 9.a4 (9.Na3 Bb7+=) 9...Bb7= 10.Be2 Nbd7 11.d4 (11.Qc2 Nd5=) 11...Rc8 12.Nbd2 cd4 13.Bd4 Nc5 14.Rc1 Nfe4 (14...Nd5 15.Nc4+=) 15.Ne4 Ne4 16.Ne5 Rc1 17.Qc1 Bf6 (17...Bd6 18.Nc6 Qc7 19.f4+=) 18.Nc6+= Qd5 (better is 18...Qc7!?+=) 19.f3 Ng5?? (better is 19...Qa2 20.Bc4 Qa4 21.fe4 Bc6 22.Bf6 Bb5 23.Bb5 Qb5+–) 20.Bf6 gf6 (20...Bc6 21.bc6 gf6+–) 21.Ne7 (21.Ne7 Kg7 22.Nd5 ed5 23.Qc7+–) 1–0. pierre – anony, internet, 2015.

6.c4 Nbd7

7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Nbd7).

7.Be2 Bd6 8.0–0 Bb7 9.a4 Rc8 10.d4 0–0 11.Nbd2 Qc7 12.Rc1 Qb8 13.Qb3 e5 14.de5 Ne5 15.Rfd1 Rcd8 16.cd5 Bd5 17.Qa3 Nf3 18.Nf3 Bf3 19.Bf3 Bh2 20.Kh1 Be5 21.Qa1 Bb2 22.Qb2 Rd1 23.Rd1 Rd8 24.Rd8 Qd8 25.Qe5 Kf8 26.Kg1 Ne8 27.Qf5 g6 28.Qe5 Kg8 29.g4 Qc8 30.Qe7 Nc7 31.g5 Qb8 32.Bc6 Qc8 33.Kf1 Qh3 34.Ke1 Qh2 35.Qd8 ½–½. Dluhosch – Schmitt, corr BdF 1985.

7.Be2 g6 8.0–0 Bg7 9.d4 Bb7 10.Nbd2 0–0 11.Rc1 Ne4 12.Qb3 Re8 13.Rfd1 Nd2 14.Nd2 dc4 15.Bc4 Qg5 16.Bf1 Rec8 17.Qd3 Rc7 18.Ne4 Qe7 19.Ng3 Rac8 20.Qa3 Ba8 21.Rd2 Qg5 22.Rdc2 h5 23.Qd3 h4 24.Ne4 Be4 25.Qe4 Nf6 26.Qf3 Nd5 27.a4 cd4 28.Rc7 Rc7 29.Rc7 Nc7 30.Bd4 Bd4 31.ed4 Nd5 32.Qb3 Qg4 33.Qc4 Qd1 34.h3 Qa1 35.Kh2 Qe1 36.Qe2 Qe2 37.Be2 Nc3 38.Bc4 Na4 39.d5 Nb2 40.Bb3 ed5 41.Bd5 Nd3 42.Kg1 Nf4 43.Bc4 Kf8 44.Bf1 Ke7 45.g3 Ne6 46.Kg2 Nd4 47.gh4 Kd6 48.Bc4 Ne6 49.h5 gh5 50.Kg3 Kc5 51.Be2 f6 52.Bh5 Kb5 53.Bf7 Ng7 54.Kf4 Kb4 55.h4 a5 56.h5 Nh5 57.Bh5 a4 58.Kf5 a3 59.Bf7 Kc3 60.Kf6 b5 61.f4 b4 62.f5 b3 63.Bb3 Kb3 64.Ke7 a2 65.f6 a1Q 66.f7 Qe5 0–1. Geisensetter – Glotz, corr DDR.

6.Be2 Bd6

7.0–0 a5 8.d3 0–0 9.Nbd2 Nbd7 10.c4 Qc7 11.h3 Bb7 12.Qc2 e5 13.cd5 Nd5 14.a3 Rae8 15.Nc4 e5 becomes the focus of attention 15...N5f6 16.e4 Bc8 17.Nfd2 Re7 18.Ne3 Rd8 19.Ndc4 Nf8 (19...Re6!?+=) 20.f4!+/– (worse is 20.Nd6 Rd6 21.f4 ef4 22.Rf4 Ne6 23.Rf6 gf6+/–) 20...ef4 21.Bf6 fe3 (21...gf6 22.Nd5 (22.Nd6?! Qd6 23.Nc4 Qd4 24.Kh1 Rb7=) 22...Qb8 23.Nd6 (worse is 23.Ne7 Be7 24.Rae1 Ne6+/–) 23...Qd6 24.Ne7 Qe7 25.Rf4+–) 22.Be7 Be7 23.Ne3 Bf6 24.Rf6! gf6 25.Nd5 Qe5 26.Rf1 Rd5 (26...Bh3 27.Nb6 (worse is 27.gh3 Qg3 28.Kh1 Qh3 29.Kg1 Qg3 30.Kh1 Qh3 31.Kg1 Qg3 32.Kh1 Qh3=; 27.Rf6 Rd5 28.Rf3 Qd4 29.Kf1 Bg2 30.Kg2 Rg5 31.Rg3 Rg3 32.Kg3 Qg1 33.Kh3 Ng6–+) 27...Ne6 28.Qd2+/–) 27.ed5+/– Bh3 28.Bf3 (28.gh3?! Qg3 29.Kh1 Qh3 30.Kg1 Qg3 31.Kh1 Qh3 32.Kg1 Qg3 33.Kh1 Qh3=) 28...Bd7 29.a4 Qd4 30.Qf2 (30.Rf2 Qa1 31.Qd1 Qd4+/–) 30...Qa4+= 31.Qg3 (31.Be4!?+=) 31...Ng6= 32.Qb8 Kg7 33.Be4 (33.Qb6!? Qd4 34.Rf2=) 33...Qd4+= 34.Kh1 Bb5 Attacks the isolani on d3 (better is 34...c4!? 35.Bg6 hg6 (35...fg6?! 36.Qb7 Qg4 37.Qb6 Qh4 38.Kg1 cd3 39.Qc5 Bb5 40.Qb5 Qd4 41.Rf2=) 36.dc4 Qc4–/+) 35.Qb6+= Bd7 (35...Bd3 36.Bd3 Qh4 37.Kg1 Qd4 38.Rf2 Qd3 39.Qf6 Kg8 40.Qf7 Kh8 41.Qf6 Kg8 42.Qd8 Kg7 43.Qc7 Kh6 44.Qc5 Qd1 45.Rf1+–) 36.Qd6 Bg4 37.Qg3 Be2 (37...h5!?=) 38.Rc1 Bh5 (38...a4!?+=) 39.d6+– Qb2?? (better is 39...Be2+–) 40.Rc5 Qa1 1–0. Mittelbachert,Ulrich – Funke,Eckhard, Ruhrgebiet VK4–chT, 1996. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 c5 5.e3 b6)

7.0–0 Bb7 8.a4 a5 9.ba6 Ba6 10.Nc3 Be2 11.Qe2 0–0 12.Nb5 Ne8 13.Rfb1 Nd7 14.c4 Ndf6 15.h3 dc4 16.Qc4 Nd5 17.d4 Nb4 (17...Rc8 18.e4 Nf4 19.Re1 cd4 20.Qd4+=) 18.Rd1 Qe7 19.a5 (19.e4!?+=) 19...Ra5 20.Ra5 ba5 21.Nd6 Qd6 (21...Nd6 22.Qc5 Rb8 23.d5 ed5 A) 24.Qa5? Nc4 25.Qa1 Nc2–+ (25...Nb2?! 26.Qb2 Qe6 27.Nd4+=); B) 24.Be5+=) 22.Qc5+= Qc5 23.dc5 Nc6? (better is 23...Nc7!?+=) 24.Ne5 Ne5 25.Be5 f6 26.Bb8 f5 27.Rd8 (better is 27.c6 Nf6 28.Bc7+–) 27...Nf6= 28.Bc7 a4 29.c6 Nd5 30.Ba5?? (better is 30.Rd7 Nc7 31.Rc7=) 30...Ne7?? (better is 30...Rd8 31.Bd8 a3–+) 31.c7+– Nc8 (31...a3 32.Bb4 a2 33.Rf8 Kf8 34.c8Q Kf7+–) 32.Bb4 (32.Bb4 Kf7 33.Rf8 Kg6 34.Rc8+–) 1–0. Bigalke,Andre (2025) – Moeller,Fritz (1640), Hamburg League qual, 2005. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c5 5.e3 b6)


6.a4 Bb4 7.Be2 =.

6.a4 Nbd7 7.d3 cd3 8.Bd3 Bd6 9.c4 e5 10.Be2 e4 (10...Bb4 11.Nc3=) 11.Nfd2 Ne5 (11...Nb6 12.cd5 Nbd5 13.Nc3=) 12.c5 (12.cd5 Bf5 13.Nc3 0–0+=) 12...Bb8 (12...Bc7 13.a5=) 13.Nb3 (13.Bd4 Bg4 14.f3 ef3 15.Nf3 Qe7=) 13...0–0 (13...Bg4 14.f3 ef3 15.gf3=) 14.Bd4 (14.N1d2 Qc7=) 14...a6 (14...Bg4 15.f3 ef3 16.gf3=) 15.Nc3 (15.ba6 ba6 16.N1d2 Nfg4=) 15…Re8 (15...ab5 16.ab5 Ra1 17.Na1=) ½–½. Kleinke,Uwe – Reinhard,Heinz H, corr DDR, 1980.

6.Nd4 Bc5 7.a4 (7.d3 e5 8.Nf3 Qa5 9.Bc3 Bb4+=) 7...a6 (7...0–0 8.Nf3=+) 8.ba6 (8.d3 ab5 9.Nb5 0–0=+) 8...Ra6 (8...Na6 9.Be2=+) 9.Nb5 Be7 (9...0–0 10.Qf3=+) 10.Be5= Bd6?? (better is 10...Nc6 11.Nc7 Kd7 12.Na6 Ne5=) 11.Nd6+– Rd6 12.Bd6 Qd6 13.Nc3 (13.d3 Qc7+–) 13...Bd7 (13...e5 14.d4+/–) 14.Be2 (14.Rb1 Qc6+–) 14...0–0 15.Qb1 Qc7 (15...Bc6 16.Nb5 Qe7 17.d4+–) 16.0–0 (16.a5 e5+–) 16...Na6 (16...Nc6 17.Nb5 Qa5 18.d4+/–) 17.Qb2 Nc5 18.Rfb1 Ra8 19.Qb6 (19.d4!? cd3 20.cd3 Ra7+–) 19...Qb6+/– 20.Rb6 Ra6 (20...e5 21.d4 cd3 22.Bd3+/–) 21.Ra6 (21.a5 e5+–) 21...ba6 22.Rb1 Kf8 23.a5 Bc6 24.Rb6 Bb7 25.d4 cd3 26.cd3 Nfd7 27.Rb4 Bc8? 28.d4 (28…Ke7 29.dc5 Nc5 30.e4 de4 31.Rc4+–) 1–0. Althoff,Guntram – Erler,Eckehard, Weilburg NBG op, 1995.

6.Nd4 Bd6 7.Ba3 =+.

6.Be2 Bb4 7.c3 (7.a3 Ba5=) 7...Ba5 (7...Bd6 8.0–0=+) 8.d3= cd3 9.Bd3 Qc7 (9...Nbd7 10.0–0=) 10.0–0 e5 (10...Nbd7 11.Nbd2 e5 12.Be2=+) 11.Be2 Nbd7 (11...Bg4 12.c4 Bf3 13.gf3 dc4 14.Qa4=) 12.Nbd2 (12.c4 dc4 13.Qc2 0–0=) 12...Bb6 (12...e4!? 13.Nd4 Ne5= (13...Bc3?? 14.Rc1+–)) 13.Rc1 (13.c4 e4 14.Nd4 Qe5+=) 13...Rb8 (13...e4!? 14.Nd4 0–0+=) 14.c4+/– d4 15.ed4 Bd4 (15...ed4!? 16.Nd4 0–0+/–) 16.Nd4+– ed4 17.Bd4 b6 (17...0–0 18.Re1+–) 18.Re1 (18.Nb3 0–0+–) 18...0–0 19.Bf3 Bb7 20.Re7 Bf3 21.Nf3 (21.gf3?! Qd6 22.Bf6 Nf6 23.Ra7 Rbd8+=; < 21.Qf3 Qd6 22.Bf6 Nf6+/–) 21...Rbd8 (21...Qf4 22.Be3 Qc7 23.Bg5+–) 22.Bf6 gf6 23.Nd4 Qf4 24.g3 Qg5? 25.f4 Qc5 26.Rd7! h5 27.Rd5 Rd5 28.cd5 Qd5 29.Nc6 Qb5 30.g4 Qa6 31.gh5 Qa2 32.Ne7 Kh8 33.Qd6 Qb2 34.Ng6! (34…Kh7 35.Nf8 Kh6 36.Rc6 Qa1 37.Kg2 Qb2 38.Kh3 Qb3 39.Kg4+–) 1–0. Diener,Rudolf – Hecker, corr DDR, (year?).

6.Be2 Nbd7 7.0–0 Bd6 8.d3 cd3 9.cd3 e5 10.Nbd2 Qe7 11.a4 0–0 12.Qc2 (12.a5 Re8=) 12...a6 13.Nh4 (13.Rfc1 Re8=) 13...Nc5 (13...Qe6 14.Nhf3=+) 14.d4= ed4 15.Bd4 Nfe4 16.Bc5 (16.Nhf3 Bg4 17.Rfd1 ab5 18.ab5 Ra1 19.Ba1 Rc8=) 16...Bc5 (< 16...Qh4 17.Bd6 Nd6 18.ba6+/–) 17.Nhf3 ab5 (17...Bf5 18.Bd3=+) 18.Bb5 (18.ab5 Bf5 19.Ne4 Rac8=) 18...Bd6 (18...Bf5 19.Rfc1=) 19.Nd4 Bg4 20.Ne4 de4 (< 20...Qe4 21.Bd3 Qe5 22.g3= (< 22.Bh7 Kh8 23.g3 f5–/+)) 21.Be2 (21.h3 Rfc8 22.Qd2 Bb4=+) 21...Qe5 22.g3 Rfc8 23.Qd1 Bh3 24.Bg4 Bg4 25.Qg4 g6 26.f4 Qd5 27.Qe2 Rc4 28.Qd1 Bc5–+ 29.Qe2 Bd4 30.ed4 Rca4 31.Ra4 Ra4 32.Rd1 Rd4 33.Rd4 Qd4 34.Kg2 Kg7 35.Qb5 b6 36.h4 f5 37.Qe8 Kh6 38.Qf8 Kh5 39.Qe7 h6 40.Qe6 Qd2 41.Kh3 Qd1 (42.Qa2 Qh1 43.Qh2 Qh2 44.Kh2 b5–+) 0–1. Curado,Manuel – Mackintosh,Iain, corr Portugal–Scotland, 1996.

6.Be2 Be7 7.0–0 0–0 8.d3 cd3 9.cd3 a6 10.a4 Nbd7 11.Nbd2 ab5 12.ab5 Ra1 13.Ba1 Qa5 14.d4 Nb6 15.Qb1 Bd7 16.Rc1 Rc8 17.Rc8 Nc8 18.Nb3 Qb4 19.Qc2 Nd6 20.Bc3 Qa4 21.b6 Qc6 22.Ne5 Qc8 23.Bd3 Nde4 24.Be1 Qc2 25.Bc2 Ba4 26.Be4 Bb3 27.Bd3 Ba4 28.Kf1 Kf8 29.Ke2 h6 30.Ba5 Ke8 31.Kd2 Nd7 32.f4 Ne5 33.fe5 Kd7 34.e4 Kc6 35.ed5 ed5 36.Kc3 Bb5 37.Bc2 g5 38.Bb3 Bf1 ½–½. Nemec,Zdenek – Nyvlt,Miloslav, corr Czechoslovakia, 1989.

6.a4 a6

7.ba6 A) 7...Ra6 8.d3 Qa5 9.Nfd2 cd3 10.Bd3 Ra8 11.Bb5 Bd7 12.c4 Qd8 13.0–0 Be7=; B) 7...ba6 B1) 8.Nc3 Nbd7 (8...Qa5 9.Be2 Nc6 10.Rb1 e5 11.Qc1 e4 12.Nh4 Rg8 13.f4 Bb4+=; 8...Bb4 9.Na2 Bd6 10.d3 cd3 11.Bd3 Qa5 12.Nc3 Nbd7 13.Qd2 Rb8+=; 8...Nc6 9.Be2 e5 10.0–0 Bd6 11.Rb1 Qc7 12.h3 0–0 13.d3 cd3+=) 9.Be2 Qa5 10.Ra2 e5 11.Ra1 Bc5 12.0–0 Rb8 13.Qc1 Bb4–/+; B2) 8.Be2 Nc6 (8...Nbd7 9.Nc3 Rb8 10.Rb1 e5 11.0–0 Qa5 12.Ng5 Bd6 13.Qe1 0–0+=; 8...Bd6 9.0–0 Nc6 10.Ba3 Rb8 11.d3 cd3 12.cd3 e5 13.d4 e4=; 8...Be7 9.d3 cd3 10.cd3 Nc6 11.Nbd2 Rb8 12.Rb1 0–0 13.0–0 Bd6=) 9.0–0 Rb8 10.Bc3 Ne4 11.Ra2 Nc3 12.Nc3 Bd6 13.Qa1 Qf6+=; B3) 8.d3 cd3 (8...Qa5 9.Bc3 Bb4 10.Bb4 Qb4 11.Qd2 Qb2 12.Qc3 Qc3 13.Nc3 cd3+=; 8...Nc6 9.dc4 Rb8 10.Ba3 Ba3 11.Ra3 0–0 12.cd5 Qa5 13.Nbd2 Nd5+=) 9.Bd3 Nc6 10.Nbd2 Rb8 11.Rb1 Nb4 12.Be2 Bd6 13.0–0 0–0=; C) 7...Na6 C1) 8.Be5 Nd7 (8...Bd7 9.d3 Qa5 10.Nbd2 cd3 11.Bd3 Nc5 12.0–0 Nd3 13.cd3 Ba4+=; 8...Nc5 9.Nc3 Ncd7 10.Bd4 Bc5 11.d3 Bb4 12.Be2 Qe7 13.0–0 e5+=; 8...Nb4 9.d3 Nc6 10.Bb2 Qa5 11.Bc3 Bb4 12.Qd2 e5 13.Bb4 Qb4+=) 9.Bf4 Be7 10.Be2 Bf6 11.Nc3 Bc3 12.dc3 Nac5 13.Qd4 f6–/+; C2) 8.Nc3 Bd7 (8...Bd6 9.Nb5 Bb4 10.Bd4 0–0 11.c3 Be7 12.d3 cd3 13.Bd3 Nc5=; 8...Nc5 9.d3 Qa5 10.Qd2 cd3 11.Bd3 Bd7 12.Ne5 Nd3 13.cd3 Bb4=; 8...Bb4 9.Be2 0–0 10.0–0 Qa5 11.Nb5 Bd7 12.Bf6 gf6 13.d3 c3=) 9.Nb5 Nc7 10.Qb1 Nb5 11.ab5 Ra1 12.Ba1 Qa5 13.Bf6 gf6+=; C3) 8.Bd4 Bb4 (8...Nc5 9.d3 cd3 10.Bd3 Bd7 11.Nc3 Na4 12.Na4 Ra4 13.Ra4 Ba4+=; 8...Bd7 9.d3 cd3 10.Bd3 Nc5 11.Nc3 Na4 12.Na4 Ra4 13.Ra4 Ba4+=; 8...Bd6 9.d3 cd3 10.Bd3 Nb4 11.0–0 Nc6 12.Bb2 e5 13.Bb5 Qc7+=) 9.c3 Bd6 10.d3 cd3 11.Bd3 Nc5 12.Bc5 Bc5 13.Qb3 Qc7+=; C4) 8.d3 cd3 (8...Qa5 9.Nfd2 cd3 10.Bd3 Bd7 11.0–0 Bd6 12.Na3 Qb4 13.Bf6 gf6=; 8...Nc5 9.dc4 Na4 10.Bd4 Bb4 11.Nfd2 dc4 12.Bc4 Bd7 13.0–0 Bc6=) 9.Bd3 Bb4 10.Bc3 Qa5 11.Bb4 Nb4 12.0–0 Nd3 13.Qd3 Bd7+=.

7.Nc3 Qa5 A) 8.d3 Bd7 (8...Nbd7 9.Qd2 Bb4 10.ba6 Ra6 11.Nd4 Nc5 12.Ndb5 Qd8 13.Ba3 Ra4–/+; 8...Bb4 9.Kd2 0–0 10.Rg1 e5 11.Ne5 d4 12.ed4 Nd5 13.dc4 Bc3–+; 8...cd3 9.cd3 Bb4 10.Qc2 Nbd7 11.Be2 e5 12.0–0 0–0 13.Rfc1 Re8=) 9.Qd2 Bb4 10.ba6 Na6 11.Ne5 Rc8 12.Rc1 cd3 13.cd3 Nc5–+; B) 8.Be2 Bb4 (8...Bd6 9.0–0 e5 10.Rb1 0–0 11.d3 cd3 12.cd3 Be6 13.Qe1 ab5=; 8...Nbd7 9.0–0 e5 10.Rb1 Bb4 11.Na2 Bd6 12.Nc3 Qc7 13.h3 0–0=; 8...Bc5 9.0–0 0–0 10.Nb1 Bb4 11.Bd4 b6 12.d3 cd3 13.cd3 Nbd7=) 9.0–0 0–0 10.Na2 Be7 11.Nc3 b6 12.d3 Bb4 13.Qd2 d4+=; C) 8.ba6 ba6 (8...Na6 9.Be2 Bb4 10.0–0 0–0 11.Nb5 Bd7 12.Bf6 gf6 13.d3 c3=; 8...Ra6 9.Nb5 Nc6 10.Bc3 Bb4 11.Nd6 Ke7 12.Nc8 Rc8 13.Bf6 Kf6+=) 9.Be2 Nc6 10.0–0 Rb8 11.Rb1 e5 12.Re1 Bd6 13.Ng5 0–0–/+; D) 8.e4 Bb4 (8...Bc5 9.ed5 ed5 10.Qe2 Be6 11.Ng5 Kd8 12.Ne6 fe6 13.g3 Bd4=) 9.e5 Ne4 10.Ne4 de4 11.Nd4 c3 12.Bc3 Bc3 13.Nb3 Qc7+=.

7.Nc3 Bb4 A) 8.Be2 0–0 (8...Bd7 9.0–0 0–0 10.Na2 Bd6 11.Nc3 Qc7 12.d3 Ng4 13.Kh1 cd3=; 8...Nbd7 9.0–0 e5 10.Na2 Bd6 11.d3 Qc7 12.dc4 e4 13.Nd2 Bh2=; 8...b6 9.0–0 Bd7 10.d3 Bc3 11.Bc3 ab5 12.ab5 Ra1 13.Qa1 Bb5+=) 9.0–0 Qa5 10.Na2 Be7 11.Nc3 b6 12.d3 Bb4 13.Qd2 d4+=; B) 8.Na2 Be7 (8...Bc5 9.Be2 Nbd7 10.0–0 Qa5 11.Nc3 0–0 12.Qe1 e5 13.e4 de4+=; 8...Ba5 9.Be2 Bd7 10.Qb1 0–0 11.0–0 Qe7 12.Bd4 Bc7 13.Qb2 Rc8=) 9.d3 Qa5 10.Nc3 Bb4 11.Kd2 0–0 12.Rg1 e5 13.Ne5 d4–+; C) 8.ba6 Ra6 (8...Na6 9.Be2 0–0 10.0–0 Qa5 11.Nb5 Bd7 12.Bf6 gf6 13.d3 c3=; 8...ba6 9.Be2 Nc6 10.Rb1 e5 11.0–0 0–0 12.d3 Qa5 13.Na2 c3=) 9.Be2 0–0 10.0–0 Qa5 11.Na2 Qa4 12.Nb4 Qb4 13.Ra6 Na6=.

7.Nc3 ab5 A) 8.ab5 Ra5 (8...Ra1 9.Qa1 Nbd7 10.d3 cd3 11.Bd3 e5 12.Bf5 Bd6 13.0–0 0–0=) 9.Ra5 Qa5 10.Qa1 Qa1 11.Ba1 Nbd7 12.d3 cd3 13.Bd3 e5=; B) 8.Nb5 Be7 (8...Nbd7 9.d3 cd3 10.Bd3 Bb4 11.c3 Be7 12.c4 0–0 13.cd5 Nd5=; 8...Na6 9.Be2 Be7 10.0–0 Nc5 11.d3 Ra4 12.dc4 0–0 13.Ra4 Na4+=; 8...Nc6 9.Be2 Ne4 10.0–0 Nc5 11.Nc3 Bd6 12.d3 cd3 13.cd3 0–0=) 9.d3 cd3 10.Bd3 Na6 11.0–0 Nc5 12.c4 0–0 13.Bd4 dc4=.

7.Nc3 Qc7 A) 8.Rb1 Be7 (8...Nbd7 9.Be2 ab5 10.Nb5 Qd8 11.Ra1 Bb4 12.0–0 Qa5 13.Bd4 0–0=; 8...Bd7 9.Be2 Bd6 10.0–0 0–0 11.ba6 ba6 12.d3 cd3 13.Qd3 Nc6+=; 8...Bb4 9.ba6 ba6 10.Na2 Bd6 11.Bf6 gf6 12.d3 cd3 13.Bd3 Bd7=) 9.ba6 Na6 10.d3 Bb4 11.Nd4 Bd7 12.Ndb5 Bb5 13.ab5 cd3–+; B) 8.ba6 ba6 (8...Na6 9.Nb5 Qd8 10.Be2 Bd7 11.0–0 Nc7 12.Qb1 Nb5 13.ab5 Ra1=) 9.Rb1 e5 10.Nd5 Nd5 11.Be5 Bd6 12.Bd6 Qd6 13.Bc4 Be6+=; C) 8.Be2 Bb4 (8...e5 9.0–0 Bd6 10.a5 0–0 11.d3 e4 12.b6 Qe7 13.de4 de4+=; 8...Be7 9.d3 e5 10.dc4 dc4 11.0–0 Be6 12.ba6 ba6 13.Ng5 Bd7=; 8...Bc5 9.d3 cd3 10.Qd3 Nbd7 11.0–0 Nb6 12.a5 Nc4 13.ba6 Nb2=) 9.0–0 0–0 10.Na2 Be7 11.d3 Rd8 12.Qd2 Nbd7 13.Rfb1 Bd6=.

7.Nc3 Nbd7 8.Be2 (8.d3 Bb4 (8...Qa5 9.Qd2 Bb4 10.ba6 Ra6 11.Nd4 Nc5 12.Ndb5 Qd8 13.Ba3 Ra4–/+) 9.ba6 Qa5 10.Qd2 Ra6 11.Kd1 Nc5 12.Ra2 Na4 13.Ra4 Qa4–+; 8.ba6 ba6 (8...Ra6 9.Be2 Bb4 10.0–0 e5 11.Nb5 e4 12.Nfd4 0–0 13.Bc3 Bc3=) 9.Be2 Qa5 10.Qc1 e5 11.0–0 Bb4 12.Rb1 Rb8 13.Na2 Bd6+=) 8...Nc5 (8...e5 9.0–0 Bd6 10.d3 cd3 11.cd3 0–0 12.Rb1 Qc7 13.Rc1 Qa5=; 8...Bb4 9.0–0 e5 10.Rb1 0–0 11.ba6 ba6 12.d3 Qa5 13.Na2 cd3=; 8...Bd6 9.0–0 0–0 10.d3 cd3 11.cd3 e5 12.Rb1 Qe7 13.Qc2 Re8=; 8...ab5 9.Nb5 Bb4 10.0–0 Qa5 11.Bd4 0–0 12.d3 cd3 13.cd3 Ng4=) 9.0–0 Bd6 10.d3 cd3 11.cd3 Bd7 (11...0–0 12.Qc2 b6 13.Rfc1 e5=) 12.e4 (12.Ba3 Qa5 13.d4 Qc3=) 12...de4 (12...Bf4 13.e5 Ng4+/–) 13.de4 (13.Ne4 Be7+=) 13...Be7 (13...Qc7+=) 14.e5 Nfe4 15.Ne4 Ne4 16.Qd4 Nc5 17.Rad1 ab5 18.Qg4 0–0 19.Bb5 Qc7 20.Bd7 Nd7 21.h4 Rfd8 22.Rd4 Qc2 23.Rfd1 Nf8 24.Rd8 Rd8 25.Rd8 Bd8 26.Qb4 Qc7 27.h5 Be7 ½–½. Abreu Suarez,I (2055) – Gonzalez Moreno,JC (1700), Santa Cruz de Tenerife ESP, 2011.

7.d3 A) 7...ab5 8.ab5 Ra1 (8...Bb4 9.c3 Ra1 10.Ba1 Bd6 11.dc4 0–0 12.cd5 ed5 13.c4 Be6+=) 9.Ba1 Qa5 10.Bc3 Bb4 11.Qd2 Qa2 12.Qc1 Qa5 13.Qb2 Bc3=; B) 7...cd3 8.Bd3 Bd6 (8...Bb4 9.Nbd2 Nbd7 10.0–0 Nc5 11.Qb1 Qa5 12.Nb3 Nb3 13.cb3 Bd7+=) 9.0–0 0–0 10.c4 dc4 11.Bc4 Qe7 12.Nbd2 Rd8 13.Bf6 Qf6+=; C) 7...Qa5 C1) 8.Qd2 ab5 (8...Qd2 9.Nbd2 cd3 10.Bd3 Nbd7 11.c4 b6 12.cd5 Nd5 13.0–0 f6+=; 8...Bb4 9.c3 Be7 10.dc4 dc4 11.Na3 Ne4 12.Qd4 Bf6 13.Nc4 Bd4+/–; 8...Qd8 9.dc4 ab5 10.ab5 Ne4 11.Qd4 Ra1 12.Ba1 Qa5 13.Nbd2 f6+/–) 9.ab5 Bb4 10.c3 Qa1 11.Ba1 Ra1 12.Qc2 Bc3 13.Nfd2 Ba5+=; C2) 8.Nfd2 cd3 9.Bd3 Nbd7 10.c4 dc4 11.Bc4 Bd6 12.0–0 0–0 13.Nf3 Qc7=; C3) 8.c3 cd3 9.Bd3 Nbd7 10.0–0 Qc7 11.c4 e5 12.Nfd2 ab5 13.ab5 Ra1=; C4) 8.Bc3 Bb4 9.Qd2 Bc3 10.Nc3 cd3 11.Bd3 ab5 12.Nb5 Nc6 13.c4 dc4=.

7.Be2 A) 7...ab5 8.ab5 Ra5 (8...Ra1 9.Ba1 Bd7 10.Nc3 Qa5 11.Qb1 Bd6 12.0–0 e5 13.d3 cd3=) 9.Bf6 gf6 10.Nc3 Bb4 11.Na2 Ba3 12.Qb1 Rg8 13.Rg1 e5=; B) 7...Bd6 B1) 8.d3 cd3 (8...Bb4 9.Bc3 cd3 10.Qd3 Bc3 11.Qc3 0–0 12.0–0 Ne4 13.Qd4 ab5=; 8...Qa5 9.Bc3 Bb4 10.Qd2 Bc3 11.Nc3 cd3 12.cd3 Bd7 13.Rc1 ab5+=) 9.Bd3 Nbd7 10.0–0 0–0 11.c4 e5 12.c5 Nc5 13.Ne5 Qe7+=; B2) 8.ba6 ba6 (8...Na6 9.d3 cd3 10.cd3 Qa5 11.Bc3 Nb4 12.Na3 Be7 13.Nb5 Bd7=; 8...b6 9.Nc3 Ba6 10.Nb5 Bb5 11.ab5 Ra1 12.Qa1 Nbd7 13.d3 cd3=) 9.0–0 Nc6 10.Ba3 0–0 11.d3 cd3 12.cd3 Rb8 13.Bd6 Qd6+=; B3) 8.Nc3 Bd7 (8...0–0 9.0–0 e5 10.d3 cd3 11.cd3 Be6 12.a5 Re8 13.Qc2 Nbd7=; 8...Nbd7 9.0–0 e5 10.d3 cd3 11.cd3 0–0 12.Rc1 Qe7 13.d4 e4=; 8...e5 9.0–0 0–0 10.d3 cd3 11.cd3 Be6 12.a5 Qe7 13.d4 e4=) 9.d3 Bb4 10.0–0 Qa5 11.Qe1 0–0 12.Ne5 Rc8 13.Rc1 ab5–/+; B4) 8.0–0 Bd7 (8...ab5 9.ab5 Ra1 10.Ba1 Bd7 11.Nc3 Qa5 12.Qb1 e5 13.d3 cd3=; 8...Nbd7 9.d3 cd3 10.cd3 ab5 11.ab5 Ra1 12.Ba1 0–0 13.Qd2 Qb6=; 8...0–0 9.d3 cd3 10.Qd3 Nbd7 11.Nc3 Nc5 12.Qd2 b6 13.Rfd1 Bb7=) 9.Ba3 Ba3 10.Na3 Qa5 11.Ne5 0–0 12.d4 Ne4 13.Bf3 Nc3+=; C) 7...Bd7 C1) 8.ba6 Na6 (8...Ra6 9.d3 Ba4 10.dc4 Bb4 11.Nbd2 dc4 12.Bc4 b5 13.Ra4 Bd2+=) 9.Ne5 Nc5 10.Nd7 Qd7 11.Nc3 Na4 12.Na4 Ra4 13.0–0 Be7–/+; C2) 8.Nc3 Qc7 (8...ab5 9.Nb5 Ne4 10.0–0 Ra5 11.d3 Bb5 12.ab5 Rb5 13.Be5 cd3+=; 8...Bd6 9.d3 cd3 10.Qd3 Qc7 11.0–0 Ng4 12.h3 Nh2 13.Nh2 Bh2+=; 8...Bb4 9.0–0 0–0 10.Na2 Bd6 11.Nc3 Qc7 12.d3 Ng4 13.Kh1 cd3=) 9.0–0 Bb4 10.ba6 Ra6 11.Rb1 0–0 12.Nb5 Qa5 13.Bf6 gf6=; D) 7...Bb4 D1) 8.Bc3 Bd6 (8...Bc5 9.d3 cd3 10.Bd3 0–0 11.Nbd2 Bd6 12.e4 Ne4 13.Ne4 de4=; 8...Be7 9.ba6 Na6 10.d3 cd3 11.cd3 0–0 12.0–0 b6 13.Be5 Nb4=; 8...Qa5 9.Bb4 Qb4 10.Nc3 0–0 11.0–0 Ne4 12.ba6 Nc3 13.dc3 Qc3=) 9.d3 cd3 10.Bd3 0–0 11.0–0 Nbd7 12.Qd2 e5 13.Be2 Qc7+=; D2) 8.Nc3 Nbd7 (8...Bd7 9.0–0 0–0 10.Ne5 ab5 11.ab5 Ra1 12.Qa1 Qc7 13.Nf3 Bd6=; 8...0–0 9.0–0 Qa5 10.Na2 Bd6 11.Bf6 gf6 12.Nc3 Bb4 13.ba6 Na6+=; 8...b6 9.0–0 Bd7 10.d3 Bc3 11.Bc3 ab5 12.ab5 Ra1 13.Qa1 Bb5+=) 9.0–0 0–0 10.ba6 Ra6 11.Nb5 Qa5 12.Bd4 Re8 13.c3 Bc5+=; D3) 8.ba6 Na6 (8...Ra6 9.0–0 Bd7 10.d3 cd3 11.cd3 0–0 12.Qb3 Nc6 13.Rc1 Rb6=; 8...b6 9.0–0 Ba6 10.d3 Nbd7 11.dc4 Bc4 12.Bc4 dc4 13.Qd4 Qc7=; 8...ba6 9.0–0 0–0 10.d3 cd3 11.cd3 Nc6 12.Nbd2 Bd6 13.Rc1 Bd7=) 9.Bd4 0–0 10.0–0 Bd7 11.Ne5 Qa5 12.d3 c3 13.Nd7 Nd7+=; D4) 8.0–0 Bd7 (8...ab5 9.ab5 Ra1 10.Ba1 Bd7 11.Bc3 Be7 12.d3 Bb5 13.dc4 Bc4+=; 8...Qa5 9.Bd4 Bd7 10.Ne5 Qd8 11.ba6 Ra6 12.c3 Bd6 13.d3 Qc7=) 9.ba6 Na6 10.Be5 Nc5 11.c3 Ba5 12.d3 Bc7 13.dc4 Ba4+=.

6.Nc3 b6

7.a3 A) 7...a6 8.Be2 (8.d3 cd3 9.Bd3 Be7 10.0–0 0–0 11.Rb1 Qc7 12.Qd2 Bd7 13.a4 Bb4=) 8...Bd7 9.ba6 Bc5 10.d3 cd3 11.cd3 0–0 12.0–0 Na6 13.d4 Bd6=; B) 7...Bd6 8.Be2 (8.d3 cd3 9.Bd3 e5 10.Be2 0–0 11.0–0 Bb7 12.Qd2 Qc7 13.Kh1 Rc8+=) 8...0–0 9.d3 cd3 10.cd3 e5 11.0–0 Nbd7 12.Qc2 Qe7 13.Rfc1 a6=.

7.a4 A) 7...Qc7 8.d3 (8.Be2 e5 9.d3 Bb4 10.0–0 Bb7 11.dc4 dc4 12.Nd2 0–0 13.Nc4 Rd8+=) 8...Bb4 9.dc4 Ne4 10.Qd4 f6 11.Nd2 Nc3 12.Bc3 e5 13.Qd3 dc4+/–; B) 7...Bb4 8.d3 (8.Be2 0–0 9.0–0 a6 10.d3 cd3 11.cd3 Bd7 12.Qb3 Qe7 13.Ne5 Rc8=) 8...e5 9.Ne5 Qc7 10.Nf3 cd3 11.Qd3 Ne4 12.Ra3 Qd6 13.Rb3 Nc5+=.

7.Rb1 A) 7...a6 8.ba6 (8.d3 ab5 9.Nb5 cd3 10.Bd3 Ra2 11.Be5 Na6 12.Nc3 Ra5 13.0–0 Nc5+=) 8...Ra6 9.Ba1 Nc6 10.d3 cd3 11.Bd3 Ra5 12.0–0 Be7 13.Rb5 0–0=; B) 7...Bd6 8.Be2 (8.d3 cd3 9.Bd3 e5 10.Be2 0–0 11.0–0 Bb7 12.Ne1 Qc7 13.Kh1 Rc8+=) 8...e5 9.d3 cd3 10.cd3 0–0 11.Qb3 Bb7 12.0–0 Nbd7 13.Rfc1 Qe7=.

7.d3+= a6 8.dc4 (8.a3 cd3 9.Bd3 Be7 10.0–0 0–0 11.Rb1 Qc7 12.Qd2 Bd7 13.a4 Bb4=) 8...Qc7 9.cd5 Ba3 10.d6 Bd6 11.ba6 Bb4 12.Qd4 Nd5 13.Bc4 Nc3 +/–.

7.d3+= cd3 8.cd3 (8.Bd3 a6 9.0–0 Bb4 10.a3 Be7 11.e4 de4 12.Ne4 ab5 13.Qe2 Nbd7+=; 8.Qd3 a6 9.Be2 Nbd7 10.0–0 Bd6 11.Rfd1 Qc7 12.Qd2 Ne5 13.Ne5 Be5=) 8...a6 9.a4 (9.Be2 ab5 10.Nb5 Bb4 11.Bc3 Bc3 12.Nc3 0–0 13.Rc1 Nbd7=) 9...a5 (9...Bd6 10.Be2= 0–0 11.0–0 e5 12.ba6 Na6 13.Nb5 Re8=) 10.Be2+= Bb4 (10...Bd6 11.0–0 0–0 12.Rc1 Nbd7 13.Qd2 e5=) 11.0–0 (11.Rc1 0–0 12.0–0 Bd6 13.Nb1 Ra7+=) 11...0–0 12.Na2 (12.Rc1 Ra7 13.Nb1 Bd6+=) 12...Bd6 13.Ne5 (13.Rc1 Ra7+=) 13...Be5 (13...Nbd7=) 14.Be5 Nbd7 15.Bd6 Re8 16.Rc1 Bb7 17.Qb3 Rc8 18.h3 (18.Rc8 Bc8 19.Rc1 e5+=) 18...Nc5= 19.Bc5 bc5 20.Rc2 Re7 21.Rfc1 Qd6 22.Qa3 Rec7 23.d4 Nd7 24.Nc3 Qb6 25.dc5 Nc5 26.Nb1 Ne4 27.Qe7 Rc2 (27...Nc5 28.Qg5=) 28.Rc2+= Nf6? (better is 28...Nc5!?+=) 29.Rc8+– Bc8 30.Bh5! g6 (30...Nh5 31.Qe8) 31.Bg6 hg6 32.Qf6 Qc5 33.Qc3 Qc3 34.Nc3 Bb7 35.f3 f5 36.g4 (36.f4 Kf7+–) 36...d4 (36...fg4 37.fg4 Kf7+–) 37.ed4 Bf3 (37...Kg7 38.gf5 ef5 39.Kf2+–) 38.gf5 gf5 39.Kf2 (better is 39.b6 Bc6 40.Nb5 Kg7+–) 39...Bb7 40.Kg3 Kf7 41.Kf4 Kf6 42.h4 Kg6 43.Ke5 Kh5 44.Ke6 f4 45.d5 (45.d5 f3 46.Ne4 Bc8 47.Ke5+–) 1–0. purplegadge (1745) – noothgrush (1645),, 2014.

7.Be2 A) 7...Bd6 8.0–0 (8.d3 cd3 9.Qd3 Nbd7 10.0–0 Nc5 11.Qd4 Qc7 12.Qh4 0–0 13.Rfd1 Bb7=) 8...0–0 9.d3 cd3 10.Bd3 Qc7 11.e4 Bb7 12.ed5 Nd5 13.Ne4 Bf4=; B) 7...a6 8.d3 (8.0–0 Bd6 9.a4 0–0 10.ba6 Ba6 11.Nb5 Be7 12.d3 cd3 13.cd3 Nbd7=) 8...cd3 9.Bd3 ab5 10.Nb5 Bb4 11.c3 Bc5 12.c4 Bb4 13.Bc3 Bc3=.

6.d3 Qa5

7.Bc3 Bb4 +=.

7.Bc3 Qb5

8.Bf6 gf6 9.dc4 dc4 10.Nbd2 Bb4 11.Rc1 Bc3 12.Be2 Qa4 13.Rb1 0–0 14.0–0 –/+.

8.dc4 dc4

9.Nbd2 Qc6 10.Bf6 gf6 11.Rb1 Rg8 12.Bc4 Qc7 13.0–0 Nc6 14.Nd4 +=.

9.Nbd2 Be7 10.Bc4 Qa4 11.Ne5 0–0 12.Qb1 Rd8 13.Qb3 Qe8 14.Rd1 =.

9.Nbd2 Be7 10.Bc4 Qb6 11.Rb1+= Qc7 (11...Qd8 12.Bf6 Bf6 13.Ne4 Qa5 14.Qd2+=) 12.Be5 Qd8 (12...Qa5 13.0–0 Nbd7 14.Rb5+=) 13.Bf6 Bf6 14.0–0 (14.Ne4 Qa5 15.Qd2 Qd2 16.Kd2 Be7+=) 14...0–0 (14...Qc7 15.Ne4=) 15.Ne4 Nc6 (15...Be7 16.Qd8 Rd8 17.Rfd1=) 16.Qe2 (16.Qd8 Bd8 17.Bb5 f5+=) 16...Qc7 (better is 16...Be7!?=) 17.Nf6+/– gf6 18.Nd4 e5 19.Nb5 Qe7 20.Rfd1 Kh8 (20...Rd8 21.Rd8 Nd8 22.Nc3+/–) 21.Nd6+– Be6?? (better is 21...Na5 22.Nf7 Kg7+–) 22.Rb7 (22.Rb7 Bd7 23.Qh5+–) 1–0. Woelfelschneider,Peter – Goan, email 4AMM–04, 1997.

9.Nbd2 Be7 10.Bc4 Qc6 11.0–0= 0–0 12.Nd4 Qc5 13.Qf3 Nbd7 14.N4b3 =.

9.Nbd2 Be7 10.Bc4 Qc6 11.0–0 Nbd7 12.a4 0–0 13.a5 Ne4 14.Ne4 Qe4 15.Qd4 Qc2?? (better is 15...Nf6+=) 16.Qg7 1–0. pcmvr – preethan (2135), net–, 2015.

6.d3 cd3

7.Bd3 Bb4 8.Nbd2 a6 =.

7.Bd3 Bb4 8.Nbd2 Ne4 =.

6.Be2 a6

7.ba6 ba6 8.Nc3 =.

7.ba6 Ra6 8.0–0 b5 (8...Bd6) 9.d3 Nbd7 10.a4 Qb6 (10...Ra4 11.dc4; 10...cd3 11.Bd3 (11.cd3 Ra4) 11...Ra4) 11.Nbd2 c3 (11...cd3) 12.Bc3 Ra4 13.Ra4 ba4 14.Qa1 Qa6 15.Rb1 Be7 16.Bb4 Bb4 17.Rb4 Nb6 18.c4 dc4 (18...Bd7) 19.dc4 0–0 20.c5! Qe2 21.cb6 Bb7 22.Ra4 Qb5 23.Qd4 Nd5 24.Ra7 Rc8 25.h3 Nc3 26.Qd6 Bf3 27.Nf3 Qb1 28.Kh2 Nb5 29.Qc6 1–0. Sternik – Drazkowski, corr ½ 34. ch Poland 1990–91 (Sternik).

7.ba6 Na6 8.0–0 b5 (8...Bd6 9.d3 cd3 10.cd3=) 9.a3 Nc5 10.d3 (10.Be5 Bd7=) 10...Rb8 (10...Bd6 11.Nc3 Ra5 12.Nd4+=) 11.Ne5 (11.Be5 Bd6=) 11...Qc7 12.d4 (12.f4!?=) 12...Na4–/+ 13.Bc3 (13.Ra2 Nd7 14.Ba1 Bd6–/+) 13...Ne4 14.Bb4 (14.Qe1 Nac3 15.Nc3 Nc3 16.Qc3 f6–/+) 14...Bb4 (14...f6 15.Nf3–/+) 15.ab4 Nb2 (better is 15...f6!? 16.Nf3 0–0–/+) 16.Qe1 c3? (16...f6 17.f3 Nd6= (worse is 17...fe5 18.fe4 Rf8 19.ed5+–)) 17.Ra3 (17.f3 Nd6+/–) 17...Na4? (17...f6 18.f3 Nd6 19.Rc3+/–) 18.Bd3 (18.Bb5 Rb5 19.Ra4 0–0+–) 18...Qd6? (18...f6 19.f3 Nd2 20.Nc3 (worse is 20.Nd2 cd2 21.Qe2 Nb2+=) 20...Nf1 21.Nb5+=) 19.Be4?? (better is 19.f3 Nf6 20.Nc3+–) 19...de4+/– 20.Nc3 f6 21.Na4 (21.Ne4 Qd5 22.f3 fe5+=) 21...ba4+= 22.Nc4 Qc7 (better is 22...Qb4 23.Qb4 Rb4 24.Nd6 Ke7 25.Ne4 Bd7+=) 23.Qc3?? (better is 23.Nb2 Qc2 24.Na4+/–) 23...Ba6+= 24.Nd2 Qc3 25.Rc3 Bf1 26.Kf1 0–0 27.Ne4 Rfc8 28.Rc8?? Rc8–+ 29.Nc5 a3 30.b5 a2 31.Nb3 Rc2 32.b6 Rb2 0–1. Trkn – Anders E,, 2001.

7.Nc3 ab5 8.Nb5 Bd7 =.

6.Be2 Qb6

7.a4 a6 8.Bf6 gf6 9.Nc3 Bg7 10.a5 Qd6 11.b6 f5 12.0–0 0–0 13.Rb1 (13.Ra2 Nc6=) 13...Bc3 (13...Nc6 14.Ra1+=) 14.dc3= Qc5 15.Ra1 Nc6 16.Ng5 (16.Ra2 e5=) 16...h6 17.Nh3 Na5 18.Nf4 (18.Qd4!? Qd4 19.cd4–/+) 18...Qb6–+ 19.Re1 Bd7 (19...Nc6 20.Kh1–+) 20.Bf1 Nc6 21.Qh5 Kh7 22.e4 (22.Red1–+) 22...fe4 23.Re3 (23.Nd5 ed5 24.Qd5 Rad8 25.Qe4 Kg7 26.Bc4 Qc5–+) 23...Ne7 24.Rh3 e5! 25.Qe5 Bh3 26.Qe7 Be6 0–1. craig4000 – Szkodnikow_i_ofiar,, 2015.

7.Bf6 gf6 8.a4 a6 9.ba6 Na6 10.0–0 Nc5 11.Nc3 Bg7 (11...Bd7 12.Qb1 Qa5 13.Qb2=) 12.d3 f5 13.Qd2 Qa5 14.d4 (14.Nd4!? e5 15.Ndb5=) 14...Ne4–/+ 15.Ne4 fe4 16.Qa5 Ra5 17.Rfb1? (better is 17.Ne5–/+) 17...ef3–+ 18.Bf3 Kd7 19.c3 Kc7 20.e4 Bd7 21.ed5 ed5 22.Bd5 0–1. Font Garcia,Xavier (1720) – Rodrigo Yanguas,M (2100), 16th Balaguer Open, 2011. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 c5 5.e3 c4)

6.Be2 Bd7

7.Nc3 =.

7.a4 a6

8.Nc3 Bb4 9.0–0 =.

8.Nc3 Bb4 9.Ne5 Bc3 10.Bc3 ab5 11.Nd7 Qd7 12.ab5 Ra1 13.Qa1 Qb5 14.Bf6 gf6 15.0–0!? (15.Qf6 Qb1 16.Bd1 +/–) 15...e5 (15...Ke7 16.Rb1 Qc6 17.Qa8 +/–) 16.Rb1 Qa6 (16...Qd7 17.Qa8 0–0 18.Rb7 Qd8 19.Bh5 Nc6 20.Qd8 Nd8 21.Rd7 +/–) 17.Qa6 Na6 18.Rb7 0–0 19.Rd7 +/–. Sokolski.

8.Nc3 ab5 9.ab5 Ra1 10.Qa1 Bb4 11.0–0 Bc3 12.Bc3 Bb5 13.Nd4 Bc6 14.Qa3 Nbd7 15.d3 cd3 16.cd3 Ng8?? (better is 16...h5+–) 17.Nc6 bc6 18.Bg7 1–0. pierred (2850) – preethan (2135), net–, 2015.

8.Nc3 ab5 9.ab5 Ra1 10.Qa1 Bc5 11.0–0 0–0 12.d3 cd3 13.cd3 Qb6 (better is 13...Qe7!?+=) 14.Na4+/– Qb5 15.Nc5 Qc5 16.Ba3 Qc7 17.Bf8 Kf8 18.Rb1 Bc6 19.Nd4 Nbd7 (19...Nfd7 20.Qa8 Qd8 21.Nc6 bc6 22.Rb7+–) 20.Qa3 Kg8 21.Qa8 Nf8 22.Rc1 Qb6 23.Nc6 bc6 24.Qc6 Qb2 25.Qc2 Qe5 26.d4 Qd6 27.Bd3 g6 28.Qc5 Qd8 29.g3 N6d7 30.Qc8 Qe7 (30...Qc8 31.Rc8 f6 32.Bb5+–) 31.Rc7 Kg7 (31...Nb6 32.Qb7 Qa3+–) 32.Bb5 Qd6 (32...Nb6 33.Qb7 (33.Re7?! Nc8 34.Rc7 Nd6+–) 33...Nbd7 34.Bd7 Nd7 35.Rd7+–) 33.Bd7 Nd7 34.Rd7 Qb4 (34...Qf8 35.Qc6 Qe8 36.Qd6+–) 35.Rb7 Qe1 36.Kg2 Qd1 37.Qc7 Qh5 1–0. usingprogram (2025) – weil (1610), kurnik, 2013.

8.Nc3 ab5 9.ab5 Bb4?? 10.Ra8+– Bc3 (10...0–0 11.0–0+–) 11.Bc3 (11.Bc3 Bb5 12.Be5+–) 1–0. Fritz11 – jumbo, casual, 2013.

8.Nc3 Bd6 9.0–0 0–0 10.d3 cd3 11.cd3 (11.Qd3 Qc7=) 11...Bb4 (11...Qa5 12.Qb3=) 12.Qb3+= Qe7 13.Rfc1 Rd8 (13...Rc8 14.Ne5=) 14.Ne5 Be8 15.d4 (better is 15.ba6 Ra6 16.d4+=) 15...Nbd7? (15...ab5 16.Nb5 Nc6 17.Nd3+=) 16.Nd3 (better is 16.ba6!? Ra7 17.Ba3 Ba3 18.Qa3 (18.Ra3?! Ne5 19.de5 Nd7+=) 18...Qa3 19.Ra3 Ne5 20.de5+–) 16...Bd6+= 17.a5 (17.Ba3 Ba3 18.Qa3 Qa3 19.Ra3 ab5 20.Nb5 Rdc8+=) 17...Ne4 18.Ne4 de4 19.Nc5 ab5 (better is 19...Nc5!? 20.dc5 Bb8+=) 20.Nb7+/– Rdb8 21.a6 (21.Qb5 Ne5 22.Nd6 Bb5 (22...Rb5?! 23.Bb5 Qd6 24.de5=) 23.Nb5 Nd3 24.Bd3 ed3–+; 21.Nd6?! Qd6 22.Rc2 Nf6+=) 21...Nf6 (21...b4+/–) 22.Nc5 (better is 22.Bb5!? Bb5 23.Qb5+–) 22...Rb6 (22...Bc6 23.Bc3+=) 23.Ba3 Bc6 24.Bb4 Bd5 (24...Qe8 25.a7+=) 25.Qa3 White plans a7 (25.Qb2 e5+=) 25...e5 (25...Qa7 26.Qa5+=) 26.Qa5 Rbb8 27.de5 Qe5= 28.g3 Bc4 29.a7 Rc8 30.Bc4+= bc4 31.Rc4 Nd5?? 32.Nd7+– Bb4 33.Rc8 Rc8 34.a8Q (34.a8Q Qe8 35.Q5d5+–) 1–0. Sazonov – Treskunov, Soviet Union, 1961.

8.Nc3 Bd6 9.0–0 ab5 10.ab5 Ra5! (10...Ra1 11.Qa1 Qb6 12.d3 Bb5 (12...cd3 13.cd3 Bb5 14.Nb5 Qb5 15.Bf6 gf6 16.Qf6 +/–) 13.Nb5 Qb5 14.Bf6 gf6 15.Rb1 Qc6 16.Qf6) 11.d3 (11.Ra5?! Qa5 12.Qa1 Bb4!) 11...cd3 (11...Bb5?! 12.dc4 Ra1 (12...dc4? 13.Ra5 Qa5 14.Qd6+–; 12...Bc4? 13.Bc4 dc4 14.Ra5 Qa5 15.Qd6+–) 13.Qa1! (13.Ba1 Bc4 14.Bc4 dc4 15.Nb5!) 13...Bc4 14.Bc4 dc4 15.Rd1 Qe7 16.e4! e5 (16...Bc5? 17.e5 Ng4 18.Ne4 b5 19.h3 Nh6 20.Nd6! Kf8 21.Qa8!+–) 17.Nd5 Nd5 18.Rd5) 12.Bd3 (12.cd3? Bb5 13.Ra5 (13.Nb5 Rb5 14.Qa4 Qd7 15.Bf6 gf6 16.Nd4 Rb4!) 13...Qa5 14.Qb3 Bc6 15.Ra1 Qc7) 12...0–0 13.e4!? de4 14.Ne4 Ne4 (14...Bb5? 15.Ra5 Qa5 16.Nd6+–) 15.Be4 Rb5 (15...Ra1?! 16.Qa1 f6 17.c4; 15...Bb5? 16.Ra5 Qa5 17.Qd4 f6 (17...e5 18.Qd6 Bf1 19.Bh7!) 18.Qd6 Bf1 19.Bh7!) 16.Bg7!? (16.Qd4 f6 17.Qd6 Rb2 18.Rfb1 Rb1 19.Rb1 Bc6 20.Qe6 Kh8 21.Bc6 bc6=) 16...Bh2 17.Nh2 Kg7 18.c4! Rg5 (18...Ra5 19.Qd3 f5 20.Qg3 Kf7 21.Bf3; 18...Rb4? 19.Qg4 Kh8 20.Bh7! f5 (20...Kh7? 21.Ra3!) 21.Qh5 Kg7 22.Ra3!) 19.Ra3 (19.f4?! Rg3!) 19...Bc6! 20.f4 (20.Bc6 Qd1 21.Rd1 Nc6 –/+; 20.Rd3 Qc7 21.f4 Be4 22.fg5 Bd3 23.Qd3 Qc5 24.Kh1 Qg5 25.Rf3 Rd8!; 20.Qb1 Be4 21.Qe4 Nc6) 20...Be4? (20...Qd1! 21.Rd1 Rh5 22.Rg3 Kh8 23.Bc6 Nc6 24.Rd7 Na5 25.Ng4) 21.fg5 Qg5? 22.Qd4 (22...f6 (22...Kg8 23.Qe4) 23.Qe4 Qc5 24.Re3) 1–0. Labahn,Wolfgang – Paltrineri,Mario, corr ICCF TT–4–90 1991 (L).

8.Nc3 Bd6 9.0–0 e5 10.d3 cd3 11.cd3 =.

8.Nc3 Bd6 9.d3 Bb4 10.0–0 Qa5 +=.


6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

6.c4 Qe7 7.Nc3 (7.Bf6 Qf6 8.Nc3 Be5 9.Ne5 Qe5+=) 7...Nbd7 8.a4 (8.Qc2 h5=) 8...Ne5 (8...b6 9.a5=) 9.Ne5 Be5 10.d4 White threatens to win material: d4xe5 (10.a5 Bc3 11.Bc3 dc4 12.Bc4 0–0=) 10...Bd6 11.Rc1 cd4 12.ed4 Bb4 13.Be2 Ne4 (13...dc4!? must definitely be considered 14.Bc4 Rb8=) 14.0–0 Bc3 15.Bc3 Nc3 16.Rc3 dc4 17.Rc4 0–0 18.Qc2 Rd8 (18...Qd6!?+=) 19.Rc1+/– g6 20.Qe4 Qf6 21.Bf3 Rb8 22.Qe5 Qe5 23.de5 Bd7 (23...b6 24.Rc7 a6 25.Bc6+/–) 24.Rd1 a6?? solves nothing (better is 24...Rdc8 25.Rc8 Bc8+/–) 25.Rcd4+– Rbc8 (25...ab5 doesn't do any good 26.ab5 (26.Rd7?! is clearly worse 26...Rd7 27.Rd7 ba4=) 26...Kf8 27.Rd7 Rd7 28.Rd7+–) 26.Rd7 (better is 26.Bb7 nails it down 26...Rc5 27.ba6 Re5 28.f4+–) 26...Rd7 27.Rd7 ab5 28.ab5 Rc5 (28...Rc1 29.Rd1 Rd1 30.Bd1+–) 29.g3 (better is 29.Be2 and White wins 29...b6 30.f4+–) 29...Rb5 30.Rb7 Re5 31.Kg2 Rc5 32.Rb8 Kg7 33.Bg4 Kf6 34.Rb7 Rc8 35.Be2 h6 36.g4 g5 37.Ba6 Ra8 38.Bd3 Rd8 39.Rb3 Kg7 40.Be4 Rd4 41.Kf3 f5 42.gf5 ef5 43.Bb1 Rf4 44.Ke2 Kg6 45.Rf3 Rf3 46.Kf3 Kf6 47.Bc2 Ke5 48.Kg3 h5? 49.h4 gh4 50.Kh4 Kf4 51.Bd1 Ke4 52.Bh5 Kf4 53.f3 Ke3 54.Kg5 f4 55.Kf5 (55.Kf5 Kd3 56.Kf4 Kd4 57.Kg5 Kd3 58.f4 Kc4 59.f5 Kd5 60.f6 Ke6 61.f7 Ke7 62.Kf5 Kf8 63.Ke6 Kg7 64.Ke7 Kh6 65.Be2 Kg5 66.f8Q Kg6 67.Bd1 Kg5 68.Qf6) 1–0. Krooss,Dietmar (1770) – Guminski,Heinz, Schleswig Holstein–ch A, 2002.

6.d4 c4 7.a4 Ne4 (7...a6 8.ba6 Ra6 9.Ba3+=) 8.c3 (8.Nfd2 Qa5 9.Ba3 a6 (worse is 9...Qa4 10.Ne4 de4 11.c3 Qd1 12.Kd1+=) 10.ba6 Ra6 11.Bd6 Nd6+=) 8...b6 (8...a6 9.ba6 Na6 10.Ba3+=) 9.Be2 (9.Qc2 Bb7+=) 9...0–0 (9...a6 10.ba6 0–0 11.Ba3+=) 10.Nbd2 (10.Ba3 a6 11.Qc2 ab5 12.ab5 Bb7=) 10...f5 (10...Nd2 11.Nd2 a6 12.ba6 Ra6 13.Ba3+=) 11.Qc2 Nd7 (11...a6 12.ba6 Nd2 13.Nd2+=) 12.Ba3= Ba3 13.Ra3 Kh8 (13...a6 14.ba6 Ra6 15.0–0=) 14.g3 (14.0–0 a6=) 14...g5 (14...a6 15.ba6 Ra6 16.0–0+=) 15.Ne5 (15.h3 a6 16.Qb2 Qf6=) 15...Ne5+= 16.de5 Qc7 (16...a6 17.ba6 Ra6+=) 17.Ra1 (17.h4!? gh4 18.Rh4 Qe5 19.Ne4 fe4 20.a5+=) 17...Qe5–/+ 18.Ne4 fe4 (18...de4?! 19.Bc4 Bb7 20.Rd1=) 19.0–0 Bd7 (19...a6 20.Qd2–/+) 20.Rad1 (20.Qd2 Rf7–/+) 20...Be8 21.Qd2 (21.Qb2 a6–/+) 21...a6–+ 22.Rb1 (22.f4 ef3 23.Bf3 ab5 24.ab5 Bb5–+) 22...ab5 23.ab5 Bd7 (23...Ra3 24.Rfc1–+) 24.Rb2 (24.Bc4 Rfc8 (24...dc4?! 25.Qd7 Ra2 26.Qc6=) 25.Be2 Qc3 26.Qc3 Rc3–+) 24...Ra3 (24...Qg7 25.Rd1–+) 25.Rc1 (better is 25.Bc4 Qc3 26.Qc3 Rc3 27.Be2–+) 25...Rfa8 (better is 25...Qg7!?–+) 26.Bc4+= Rc8 27.Be2 (27.Rb4 Rc5+= (worse is 27...dc4 28.Qd7 Raa8 29.Qd4 Qd4 30.cd4+=)) 27...Rac3 (27...Rcc3 28.Rbc2 Rc2 29.Rc2–/+) 28.Rc3 (28.Rbc2 Rc2 29.Rc2 Rc2 30.Qc2 Qd6–/+) 28...Qc3 29.Kg2 (29.Qc3 Rc3 30.Ra2 e5 31.Ra8 Rc8 32.Rc8 Bc8–/+) 29...Qd2–+ 30.Rd2 Rc5 31.Rb2 Kg7 32.h4 gh4 (32...e5 33.f3–+) 33.gh4 Kf6 34.Kg3 (34.f3 ef3 35.Kf3 h6–+) 34...e5 35.Bf1 (35.f4 d4 36.fe5 Ke5 37.ed4 Kd4 38.Rd2 Ke3 39.Rd7 Ke2 40.Rh7 Rb5–+) 35...Ke7 (35...d4 36.Bg2 Bf5 37.f3 ef3 38.Bf3–+) 36.Be2 (36.Ra2 Bb5 37.Ra7 Ke6 38.Bb5 Rb5 39.Rh7 d4 40.ed4 ed4–+) 36...Kd6 (36...Rc3 37.Ra2 d4 38.Ra7–+) 37.f4 ef3! 38.Kf3 (38.Bf3 Rb5 Deflection; 38.Kf3 Bf5 Combination) 38...Rc3 (38...Bf5 39.h5–+) 39.Kf2 Kc5 40.Bf1 (40.Rd2–+) 40...Bf5 41.Rd2 (41.h5 Rc2 42.Rc2 Bc2–+) 41...Rc2 42.Rc2 Bc2 43.Kg3 (43.Ke1 Ba4–+) 43...Ba4 44.Kg4 (44.Bd3 h6–+ (44...Bb5?! 45.Bh7 d4 46.ed4 ed4 47.Kf2–+)) 44...Bb5 45.Bg2 Bd3 46.h5 (46.Bf3–+) 46...b5 47.Bf3 Bc2 48.h6 (48.Kg5 b4 49.Kf6 e4–+) 48...b4 0–1. Kuznetsky,Boris – Volkov,Petr (2095), N–08–sen, 2008.

6.Be2 Qc7 7.0–0 (7.Bf6 gf6 8.c4 d4=) 7...Nbd7 (7...e5 8.Nh4=+) 8.d3 (8.d4 cd4 9.ed4 Ng4=) 8...a6 (8...e5 9.Nh4=+) 9.ba6 (9.Na3 0–0=+) 9...ba6=+ 10.Nbd2 Rb8 (10...e5 11.Rb1=+) 11.Rb1= 0–0 12.c4 e5 (12...Bb7 13.cd5 Bd5 14.Qc2=) 13.cd5 Nd5 14.Nc4 h6 (14...Bb7 15.Nfd2=) 15.Nfd2+= Be7 (15...Bb7 16.Bf3+=) 16.Bg4 f5 17.Bf5 Rf5 18.e4 Rf7 (18...Rf4 19.ed5 Bb7 20.Ne3+/–) 19.ed5 Bd6? (better is 19...Bb7+=) 20.Ne4+– (20.Nd6?! Qd6 21.Re1 Qd5+=) 20...Bf8 21.Qg4 (21.Qh5 Qd8+–) 21...Rb2? (21...Qb7 22.Qe6 Nb6 23.Qe5 Re7 24.Nc5 Re5 25.Nb7 Nc4 26.Be5 Ne5+/–) 22.Rb2 Nf6 23.Nf6 Rf6 24.Qe2 Rg6 25.Ne5 Rg5 26.Nf3 Bg4 27.h3 Bh5 28.Rfb1 Qf4 29.Qe6 Bf7 30.Ng5 Be6 31.Ne6 Qe5 32.Rb8 Qd5 33.Rf8 Kh7 34.Nf4 Qa2 35.Rbb8 Qa1 36.Kh2 (36...g6 37.Rb7 Qg7 38.Rg7 Kg7 39.Ne6 Kh7 40.Nc5+–) 1–0. chem1st – ncc_1701,, 2005.

6.Ne5 0–0 7.Be2 Nbd7 8.f4 Qc7 (8...a6+=) 9.0–0? (better is 9.Nd7!? is a viable option 9...Bd7 10.Bf6 gf6 11.0–0=) 9...Ne5–/+ (9...Be5?! 10.fe5 Ne5 11.Qe1=) 10.fe5 Be5 11.Be5 Qe5 12.Nc3 (12.Na3 h6–/+) 12...Bd7 (12...d4 13.ed4 cd4 14.Na4–/+) 13.Qe1 d4 14.Nd1?? a blunder in a bad position (better is 14.Na4 de3 15.de3 Qe3 16.Qf2 Qf2 17.Kf2–/+) 14...d3! Decoy: b5 15.Bd3 (15.cd3 Qa1 Discovered attack (15...Bb5 Interception Decoy); 15.Bd3 Qa1 Discovered attack) 15...Qa1 16.Qg3 (16.Qh4 does not win a prize 16...Rfc8 17.Nc3–+) 16...Nh5 (better is 16...Qc1!? keeps an even firmer grip 17.Qd6 Rfd8 18.Qc5 Qd2 19.Qg5–+) 17.Qf3?? White has lost his nerve... understandable when you consider his position (better is 17.Qg5 c4 18.Bc4–+) 17...Qe5–+ 18.g4 (18.Qb7 doesn't get the bull off the ice 18...Qd6–+) 18...Nf6 19.h3 (19.a4 is not the saving move 19...Rad8–+) 19...c4! Decoy: c4 20.Bc4 (20.Bc4 Qe4 Decoy Double attack) 20...Qe4 (20...Ne4 seems even better 21.Qg2 Nd6 22.d3–+) 21.Qe2 (21.Bd3 cannot undo what has already been done 21...Qf3 22.Rf3 Rae8–+) 21...Rac8 (better is 21...Qc2!? and Black can already relax 22.Nc3 Ne4 23.Ne4 Qe4 24.a4–+) 22.Bd3 Qe5 23.Kg2 (23.Nc3 is no salvation 23...Rc3 24.dc3 Qg3 25.Qg2 Qe3 26.Kh1 e5–+) 23...Rc5 (23...Ne4 seems even better 24.Rf4 f5 25.Be4 fe4 26.Rf8 Rf8 27.Nc3–+) 24.Nc3 Nd5 25.Nd5 Qd5 26.e4 Qa2 27.c4 e5 28.Qe3 Rcc8 29.Rf2 Qa3 30.Rf3 Qc5 31.Qg5 f6 32.Qh4 Be6 0–1. Ortlepp,Olaf – Heckers,Uwe, Dortmund1, 2001.

6.a4 0–0

7.Be2 Nbd7 8.d3 b6 9.0–0 Bb7 10.Nbd2 Qc7 11.a5 A) 11...a6 12.ba6 (12.ab6 Qb6 13.e4 e5 14.ba6 Ra6 15.Ra6 Ba6 16.Qa1 Ra8 17.Ne5 Qb8+=) 12...Ra6 13.ab6 Rb6 14.Bc3 Qc6 15.d4 c4 16.Ne5 Qc8 17.f4 Ra6=; B) 11...ba5 12.Bc3 (12.Nb3 a6 13.Bf6 Nf6 14.Ra5 ab5 15.Rb5 Ba6 16.Ra5 c4 17.dc4 dc4–+) 12...a6 13.Ba5 Nb6 14.c4 Ng4 15.h3 Nh2 16.Bb6 Nf3 17.Bf3 Qb6+=.

7.Be2 Nbd7 8.d3 b6 9.0–0 Bb7 10.Nbd2 Qc7 11.Qb1 A) 11...e5 12.Nh4 (12.h3 a6 13.ba6 Ba6 14.c4 Bb7 15.e4 d4 16.Bc1 Bc6 17.Bd1 Ra5–/+) 12...a6 13.Nf5 ab5 14.ab5 Rfe8 15.Ra8 Ra8 16.c4 Bf8 17.Bf3 g6=; B) 11...a6 12.c4 (12.Rd1 ab5 13.ab5 Ra1 14.Ba1 Ra8 15.c4 e5 16.e4 d4 17.Bb2 Nh5+=) 12...ab5 13.ab5 Ra1 14.Ba1 Ra8 15.cd5 ed5 16.Rc1 Qd8 17.Nb3 Qe7+=.

7.Be2 Nbd7 8.d3 b6 9.0–0 Bb7 10.Nbd2 Qc7 11.c4 A) 11...Ng4 12.h3 (12.g3 a6 13.ba6 Ra6 14.d4 Ra7 15.dc5 bc5 16.cd5 Bd5 17.e4 Bc6=) 12...Nh2 13.Nh2 Bh2 14.Kh1 Bd6 15.cd5 ed5 16.Qb3 Rfe8 17.Bf3 Be5=; B) 11...a6 12.cd5 (12.Qc2 Rfd8 13.cd5 Nd5 14.ba6 Ra6 15.Ne4 Ra5 16.Rfb1 e5 17.Qc4 Rda8=) 12...Bd5 13.e4 Bb7 14.ba6 Ba6 15.d4 Ng4 16.h3 Nh2 17.Ba6 Ra6=.

7.Be2 Nbd7 8.d3 b6 9.0–0 Bb7 10.Nbd2 Qc7 11.Kh1 A) 11...a6 12.c4 (12.ba6 Ra6 13.c4 Rfa8 14.d4 R6a7 15.dc5 Nc5 16.Bf6 gf6 17.Nd4 Ra4+=) 12...ab5 13.cb5 e5 14.Qc2 Rfc8 15.Rfc1 Ra7 16.Nh4 Rca8 17.Nf5 Bc8=; B) 11...e5 12.Nb3 (12.a5 ba5 13.Bc3 e4 14.de4 de4 15.Ng5 h6 16.Nh3 Be5 17.Ba5 Nb6+=) 12...c4 13.Nc1 a6 14.Na2 Rfe8 15.Nc3 Bb4 16.dc4 dc4 17.Qb1 a5+=.

7.Be2 Nbd7 8.d3 b6 9.0–0 Bb7 10.Nbd2 Qc7 11.h3 a6 (11...e5 12.Re1 (12.c4 e4 13.Nh4 ed3 14.Bd3 Bh2 15.Kh1 Be5 16.Qc2 Bb2 17.Qb2 Ne5+=) 12...Rfe8 13.c4 e4 14.de4 de4 15.Nh4 Rad8 16.a5 ba5 17.Qa4 Bh2+=; 11...Rfd8 12.a5 (12.c4 a6 13.ba6 Ra6 14.cd5 Nd5 15.Ne4 Be7 16.Qb3 Bc6 17.d4 Ra5+=) 12...ba5 13.Bc3 a6 14.Ba5 Nb6 15.e4 de4 16.de4 Be4 17.Ne4 Ne4=) 12.c4 (12.ba6 Ra6 13.c4 Rfa8 14.d4 R6a7 15.cd5 Bd5 16.Bb5 cd4 17.Rc1 Qb7+=) 12...ab5 13.ab5 (13.cb5 Rfd8 14.Rc1 Ra7 15.Qc2 e5 16.Rfd1 Rda8 17.Ra1 d4+=) 13...Ra1 14.Qa1 (14.Ba1 Ra8 15.Qc2 e5 16.e4 de4 17.de4 Nh5=) 14...Ra8 15.Qd1 (15.Qb1 e5 16.e4 dc4 17.dc4 Nh5=) 15...Ne5 (15...e5 16.Qc2 e4 17.Nh4 Bh2=) 16.Qc2 Nf3 17.Nf3 (17.Bf3 dc4=) 17...e5 18.Ra1 Ra1 19.Ba1 d4 20.e4 Bc8 21.Qa2 g6 22.Bb2 Nh5 23.Bc1 Nf4 24.Ne1 Ne2 25.Qe2 f6 26.Qa2 f5 27.f3 f4 28.Nc2 Qb7 29.Bd2 Be7 30.Be1 Kg7 31.Kf1 g5 32.Na1 h5 33.Nb3 g4 34.hg4 hg4 35.fg4 Bg4 36.Nd2 Bf6 37.Nf3 Kf7 38.Qa6 Qb8 39.Nh4 Bc8 40.Qa4 Bg4 41.Qa6 Bc8 ½–½. phildo (1865) – ghalloween (1920),, 2013.

6.c4 a5

7.Nc3 0–0 =.

7.Nc3 d4 8.ed4!? cd4 9.Nd4 +=.

7.Nc3 d4 8.Ne2 e5=+ 9.ed4!? ed4 10.Qa4 –/+.

7.Nc3 d4 8.Ne2 e5 9.g3 0–0 10.ed4 (10.Bg2 a4+=) 10...cd4 11.Bg2 Bg4 (better is 11...d3 12.Nc3 Qc7–/+) 12.0–0? (better is 12.h3!? Bf5 13.c5 Bc5 14.Ne5+=) 12...d3–+ 13.Nc3 (13.Nc1 e4–+) 13...e4 14.Ne4 (14.Re1 Re8–+) 14...Ne4 15.h3 Bh5 16.g4 Bg6 17.Qb3 (17.Ne5 Be5 18.Be5 Re8–+) 17...Re8 18.Qd3 (18.Bd4–+) 18…Bh2!! (18...Bh2 19.Kh2 Qd3–+) 0–1. Reimer,K – Walker,E, Hauenstein Pfalz, 1991.

7.Nc3 d4 8.Ne2 e5=+ 9.g3 Bg4–/+ 10.Bg2 d3 (10...e4 11.Ng5 d3 12.Bf6 gf6 13.Ne4–+) 11.Nc3 e4 12.Ne4 Ne4 13.0–0 (13.Bg7 Rg8 14.Bb2 a4–+) 13...0–0 14.h3 Bh5 15.g4 Bg6 16.Qb3 (16.Ne5 Be5 17.Be5 Nd7–+) 16...Re8 17.Qd3 (17.Ne1–+) 17…Bh2!? –+. Reimer,K – Jennewein, Hauenstein Pfalz, 1991.

6.c4 a6

7.a4 ab5 8.ab5 Ra1 9.Ba1 0–0 10.Be2 Nbd7 11.0–0 Qc7 12.h3 dc4 13.Bc4 Ne5 14.Ne5 Be5 15.Nc3 Rd8 16.Qe2 Nd5 17.f4 Nc3 18.Bc3 Bc3 19.dc3 Qd6 20.Bb3 b6 21.e4 g6 22.Rd1 Qc7 23.Rd8 Qd8 24.g4 Kg7 25.Kg2 Bb7 26.Kg3 Qd6 27.Qe3 h6 28.e5 Qd7 29.c4 Ba8 30.Bc2 Qb7 31.Qf2 Qe7 32.h4 Bb7 ½–½. Hasari – Ahtiainen, 1972.

7.a4 ab5!? 8.ab5 Ra1 9.Ba1 Nbd7 +=.

7.a4 Bd7 8.Nc3+= 0–0 9.Rc1 (9.Bd3!?+=) 9...b6 10.Qb3 dc4 (10...ab5 11.Nb5 (11.cd5? ba4 12.Qa2 Na6–+; 11.ab5?! d4 12.ed4 cd4 13.Nd4 e5+=) 11...Bb5 12.ab5= (worse is 12.cb5 c4 13.Qc2 Nbd7–/+)) 11.Bc4 ab5 12.ab5 (12.Nb5 Be7=) 12...Bc8= 13.e4 (13.0–0 Bb7=) 13...Ng4 (better is 13...Qc7!?+=) 14.Ne2+= White prepares the advance e5 14...Kh8 (better is 14...Bc7!? 15.h3 Nf6+=) 15.h3+/– Nh6 16.Qe3 White intends e5 16...f6 17.e5 (better is 17.0–0!?+/–) 17...fe5+= 18.Ne5 Nf5 19.Qb3 (19.Qe4 Ra7 20.Nf4 Qe8=) 19...Nd4 20.Qe3 Qf6 (better is 20...Nf5!? 21.Qe4 Ra7+=) 21.Ng4+/– Bf4?? (better is 21...Nf5 22.Nf6 Ne3 23.fe3 gf6+/–) 22.Bd4 (better is 22.Qd4 Qd4 23.Bd4 Bb7 24.Nf4 Rf4+–) 22...cd4 (22...Be3 23.Bf6 (23.Nf6?! Bd4 24.Ne4 Bb2=) 23...Bf2 24.Nf2 gf6 25.0–0+–) 23.Qf4 (23.Nf6?! de3 24.Nf4 ef2 25.Kf2 e5+/–) 23...Qf4 24.Nf4 Rf4 (24...g5 25.Ne2 (25.Be6?! Be6 26.Ne6 Re8+–; 25.Ne6?! Be6 26.Be6 Re8+–) 25...h5 26.Ne5+–) 25.Bd5 Ra1 (25...ed5 26.Rc8 Mate attack) 26.Ra1 ed5 27.Ra8 Re4 28.Kf1 1–0. Lunin,Mikhail (2230) – Losev,Ivan, Kolomna, 2009.

7.Bf6 gf6 8.cd5 ed5 9.Nc3 =.

6.c4 b6

7.a4 a5 8.Na3 Bb7 9.Be2 Nbd7 10.0–0 0–0 11.d4 Qc7 (11...Ne4 12.cd5 ed5 13.Nb1–/+) 12.h3 (12.cd5 ed5 13.dc5 bc5=) 12...Rad8 (12...Ne4 13.Rc1–/+) 13.Rc1 (13.cd5 ed5 14.dc5 bc5=) 13...Qb8 (13...Ne4 14.cd5 ed5 15.dc5 Ndc5 16.Nb1+=) 14.Bd3 (better is 14.cd5!? Bd5 15.Nc4=) 14...e5–/+ 15.Ne5 Ne5 16.de5 Be5 17.Qc2 Bb2 18.Qb2 d4 19.ed4 (19.Rfe1 Rfe8 20.ed4 Rd4 (20...cd4?! 21.Re8 Re8 22.Qd4+=) 21.Re8 Qe8–/+) 19...Rd4–+ 20.Rcd1 Rfd8 21.Be2 (21.Qb3 Qd6 22.Be2 Ne4–+) 21...Qa8 (21...Qe5 22.Qc2–+) 22.Rd4 (22.f3 Nh5 23.Rd4 Rd4–/+) 22...cd4 (22...Rd4 23.f3–/+) 23.f3 (23.Rd1 Bg2 24.Rd4 Bh3–/+) 23...d3 24.Bd1 Qc8 (24...Nd7 25.Re1–/+) 25.Qf2 Qc7 26.Re1 Bc8 (better is 26...Nd7–/+) 27.Bb3? (better is 27.Nb1–/+) 27...Qd6?? (better is 27...d2 28.Rd1 Rd3–+) 28.c5= bc5 29.Nc4 Qc7 (29...Qf4 30.Qc5 Be6 31.Qb6=) 30.Qd2 Be6 (better is 30...Bh3 31.Na5 Bd7=) 31.Qa5?? (better is 31.Re3+=) 31...Qa5–+ 32.Na5 Bb3 33.Nb3 c4 34.Nc5?? (34.Nd2 c3 35.Rd1–+) 34...d2 35.Rd1 (35.Kf1 c3 36.Nb3–+) 35...c3 0–1. Sopko,Cassio Roberto (1885) – Mourao,Elcio Conte Lofredo (1825), It, 2014. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c5 5.e3 Bd6 6.c4 b6)

7.a4 a5 8.Nc3 Bb7 9.Be2 0–0 10.0–0 Ng4 (10...dc4 11.Bc4 Qc7 12.h3+=) 11.cd5= e5 (11...ed5 12.d4=) 12.h3 Nh6 (12...Nf6 13.e4+/–) 13.e4 Nd7 14.d3 f5 15.Nd2 f4 16.Nc4 Nf6 17.Qc2 g6 (17...Qc7 18.Rad1+/–) 18.Nd6 (18.Nb1 Qc7+–) 18...Qd6 19.Nb1 Rac8 20.Nd2 Rfd8?? (better is 20...Nd7+–) 21.Nc4 Qc7 (21...Qe7 22.Nb6 Rb8 23.Nc4+–) 22.Be5 Nd7 (22...Qe7 23.Bf4 Nf5 24.Nb6 Nd4 25.Nc8 Rc8+– (25...Nc2?? 26.Ne7 Kf7 27.Nc6 Bc6 28.dc6+–)) 23.Bc7 (23.Bc7 Rc7 24.Rae1+–) 1–0. Speedy – Macho, internet, 2017.

7.Nc3 0–0 8.d4 =.

7.d3 Bb7 8.Be2 0–0 9.0–0 a6 10.Na3 =.

7.d3 Bb7 8.Be2 0–0 9.0–0 Nbd7 10.Nc3 Re8 11.h3 Qe7 12.a4 Rad8 (12...dc4 13.dc4 a6 14.ba6 Ra6 15.Nb5=) 13.Qc2 (13.a5 dc4 14.dc4 e5=) 13...Bb8 (13...e5 14.cd5 Nd5 15.Nd5 Bd5 16.a5=) 14.cd5 (14.a5 dc4 15.dc4 ba5 16.Ra5 Bf3 17.gf3 Nb6=) 14...ed5 (better is 14...Nd5 15.Ne4 Nb4=) 15.Rac1? (better is 15.d4=) 15...d4–/+ 16.ed4 cd4 17.Ne4 Ne4 (17...Be4?! 18.de4 Qe4 19.Bd3=) 18.de4 Be4 19.Qc4 (19.Qd2 Nc5 20.Rce1 Qc7–+ (20...Na4?! 21.Bd4 Qc7 22.g3–/+)) 19...Ne5 (19...Bf3 20.Bf3 Ne5 21.Qb3–+) 20.Ne5 Qe5 21.f4 Qf6 22.g3? (better is 22.Rce1 Bg6 23.Bc1–+) 22...Qg6 23.Kf2 (23.Kh2 d3 24.Bd1–+) 23...Bf4! 24.gf4 Qg2 25.Ke1 d3 (26.Rc2 dc2 27.Bg7 Rd1 28.Bd1 Bf3 29.Be2 c1Q 30.Qc1 Qe2) 0–1. Skerlik,Stanislav – Brindza,Istvan, corr CZE–Cup, 1993.

7.d4 0–0 =.

7.cd5 ed5 8.Be2 0–0 =+.

7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Bd6).

7.Be2 Nbd7 8.0–0 Bb7 (--> 7...Bb7 8.0–0 Nbd7).

7.Be2 Nbd7 8.0–0 Qc7 9.g3 Bb7 10.d3 0–0 11.a4 dc4 12.dc4 Ne5 13.Ne5 Be5 14.Be5 Qe5 15.Nd2 Rad8 16.Qc2 Ne4 17.Rad1? (17.Ne4!? Be4 18.Qb3+=) 17...Nc3 (17...Qc3!? 18.Qb3 Qb3 19.Nb3–+) 18.Rde1–/+ Ne2 19.Re2 Qh5 20.Rfe1 f5 21.f4 Rd2 (better is 21...Rd7!?–/+) 22.Qd2= Qf3 23.Rg2 Qg2 24.Qg2 ½–½. Hal1958 – ABE,, 2004.

7.Nc3 Bb7

8.Qb3 Nbd7 9.d4 (9.Be2!?=) 9...0–0 10.Be2 (10.cd5 Bd5 11.Qa4 Bf3 12.gf3 cd4 13.Qd4 Qe7–/+) 10...Re8 (10...cd4!? 11.Nd4 Rc8–/+) 11.0–0+= Rc8 12.cd5 Nd5 (12...ed5 13.Qc2+=) 13.Ne4= Bb8 (13...Be7 14.dc5 Nc5 15.Nc5 Bc5 16.Rac1=) 14.dc5+= Nc5 15.Nc5 Rc5 16.Rac1 Rc1 17.Rc1 Qe7 18.Qc4 (18.Nd4 Be5+/–) 18...Nf6 19.Qc3 Rc8?? (19...e5 20.Qa3=) 20.Qd2 (better is 20.Qc8 Bc8 21.Rc8 Ne8 22.Rb8+–) 20...Rc1= 21.Qc1 Bd6 22.Ne5 Bc5 23.Nc6 Bc6 (23...Qe8 24.Bf3+=) 24.bc6+/– Qc7 25.Bf6 gf6 26.Bf3 e5 (better is 26...Bd6!? 27.g3 f5+/–) 27.Bd5 a5 (27...Kf8 28.Qd1+–) 28.Qc4 Kf8 29.Bf7 (better is 29.Qh4 Kg7 30.Qg4 Kf8 31.Qf5+–) 29...Qc6+/– (29...Qf7?? 30.Qf7 Kf7 31.c7+–) 30.Bg8 (30.Be6 h5 31.a4 Qd6+/–) 30...Qd7+= 31.Qd5 ½–½. Bruno,Gerardo – Mirada,Luciano, Proyeccion07, 2007.

8.d4 0–0 =.

8.Be2 0–0 9.d4 =.

8.Be2 Nbd7 9.Qc2 dc4 10.Bc4 0–0 11.Bd3 =+.

8.Be2 Nbd7 9.Qc2 Qc7 10.cd5= ed5 11.Nd1 0–0=+ 12.h3 Rfe8 13.d4 c4 14.Nc3 Nf8 15.a4 Ng6 16.g4 (16...Qe7 17.g5=+; 16.0–0 Bc8=). Mroz,Antoni – Sarnecki,R, corr Poland, 1986.

8.Be2 Nbd7 9.cd5 ed5 10.Nh4 0–0 =.

7.d4 Bb7

8.Nbd2 Nbd7 9.Rc1 0–0 10.cd5 ed5 11.Nh4 =.

8.Nbd2 Nbd7 9.Rc1 Rc8 10.Qb3. katchum (2485) – johannes (1845), net–, 2004.

8.Bd3 dc4 9.Bc4 Bd5 10.Bd5 ed5 11.dc5 bc5 12.Nc3 +=.

8.Be2 cd4 9.Qd4 dc4 10.Qc4 Bd5 =.

8.Bd3 Nbd7

9.0–0 dc4 10.Bc4 cd4 11.Qd4 Nc5 =.

9.cd5 ed5 10.Ba3 0–0 11.0–0 =.

9.cd5 ed5 10.Ba3 Qe7 11.0–0 Ne4 12.Qc2 (12.dc5 bc5 13.Bb2 0–0=) 12...0–0 (12...Rc8 13.dc5 bc5 14.Bb2=+) 13.Nbd2 (13.dc5 bc5 14.Nbd2 a6=+) 13...Rac8 14.Qa4 Rc7 15.Rac1 (15.Qa7?? Ra8 16.Qa8 Ba8 17.dc5 Ndc5 18.Bc5 Nc5–+) 15...c4 (15...Nd2!? 16.Nd2 Qh4=) 16.Bd6+= Nd6 17.Rfe1 (17.Rc3 Re8+=) 17...Rfc8 18.Bc2 Ra8 19.Qb4 f5 (19...a6 20.ba6 Ra6 21.a4=) 20.Nf1 (20.a3 a6=) 20...Qf6 (20...a6 21.ba6 Ra6 22.a4=) 21.Ng3 Ne4 22.Nh5 Qd6 23.Qd6 Nd6 24.Rb1 Ne4 25.Ng3 g6 26.Ne4 fe4–/+ 27.Ng5 Nf8 28.a4 Re8 29.Nh3 Ne6 30.Ra1 Rf7 31.a5=+ Ref8 32.ab6 ab6 33.Ra7 Bc8 34.Rea1 Bd7 35.Rb1 Be8 36.Ra6= Rb7 37.Ra2 Nc7 38.Rab2 Ra7 39.Nf4 Ra5 40.h4 Bd7 41.f3 ef3–+ 42.gf3 Rf6 43.Kf2 Rd6 44.h5 gh5 45.Nh5 c3 46.Rb3 Ra2 47.Rg1 Kh8 48.Rc1 Rh6 49.Nf4 Rh2 50.Kg3 Rhc2 51.Rc3 Rc1 52.Rc1 Ra7 53.Rb1 Ra4 54.Rh1? Ra5 55.Rh6 Be8 56.Rb6–/+ Rb5 57.Rd6 Kg7 58.e4–/+ de4 59.fe4 Rb3 60.Kg4 Nb5 61.Rd8 Kf7 62.Kg5 Rg3 63.Kh4 Re3 64.d5? Re4 65.Kg3 Nd4 66.Nh3 Ke7 67.Rb8 Ne2 68.Kf3 Re5 69.Rb7 Bd7 70.Nf2 Nc3 71.Rb6 Nd5 72.Rh6 Re3 73.Kg2 Nf6 74.Rh4 Kf7 75.Rc4 Kg6 76.Nd1 Rb3 77.Nf2 Be6 78.Nd1 Bc4 0–1. Gerold,Guenter – Vinklarek,Vlastimil, corr ICCF EU/M979, 1991.

9.cd5 ed5 10.dc5 bc5 11.0–0 0–0 =.

9.cd5 Bd5 10.Nc3 =.

6.c4 dc4

7.Na3 c3 8.Bc3 a6 +=.

7.a4 a5 8.Na3 b6 9.Nc4 Bc7 10.d4 Nbd7 11.dc5 Nc5 12.Qd8 Bd8 13.Nd6 Ke7 14.Nc8 (14.Ne5!? Rf8 15.Rd1+/–) 14...Rc8+= 15.Ne5 Re8 16.Nc6 Kf8 17.Be2 Nd5 18.0–0 Bf6 19.Bf6 Nf6 20.Bf3 Rc7 21.Ne5 Nce4 22.Rfc1 Rec8 23.Rc6 Nd2 24.Be2 Nd5 25.Rd1 Ne4 26.Bf3 Nc5 27.Bd5 ed5 28.Rd5 (28.Rd4 f6 29.Rc7 Rc7=) 28...Na4 29.Rd7 Rc6 30.bc6 (30.Rf7 Kg8 31.bc6 Rc6 32.f4= (worse is 32.Nc6 Kf7 33.Kf1 Nc3–/+)) 30...f6–/+ 31.Rf7 Kg8 32.c7 Nc5 33.Nc4 Kf7 34.Nd6–/+ Ke6 35.Nc8 Kd7 36.Nb6 Kc7 37.Nc4 a4 38.Kf1 Kc6 39.Na3 Kb6 40.Ke2 Ka5 41.Nc2 Kb5 42.f3 Kc4 43.e4 Kc3 44.Na3 Kb3 45.Nb5 a3 46.Na3 Ka3 47.Ke3 Kb4 48.Kd4 Ne6 49.Kd5? Nf4 50.Kd6 Ng2 51.Ke6 Kc4 52.e5 fe5 53.Ke5 Kd3 54.f4 Ke3 55.f5 Kf3 56.f6 gf6 57.Kf6 h5 58.h4 Kg4 (58...Kg4 59.Kg6 Nh4 60.Kf6 Nf3 61.Ke6 h4 62.Kd5 h3 63.Kc6 h2 64.Kd6 h1Q 65.Kd7 Qc1 66.Kd6 Nd4 67.Ke5 Qc5 68.Ke4 Ne2 69.Kd3 Kf3 70.Kd2 Qc3 71.Kd1 Qc1 mate; 58...Nh4?! 59.Kg5=) 0–1. Savic,Dragan (2170) – Sakic,Simeon (1960), Senta SER, Open–A, 2012.

7.Bc4 a6 8.d4 =.

7.Bc4 b6 8.0–0 (8.d4 cd4 9.Qd4 Bb7=) 8...Bb7 (8...a6 9.d4=) 9.Nc3 (9.d4 Nbd7=) 9...0–0 10.a4 (10.h3 a6=) 10...Nbd7+= 11.Qe2 Ne5 (11...Bf3 12.Qf3 Ne5 13.Qe2=) 12.Ne5 Be5 13.Rac1 (13.f4 Bd6=) 13...Qd6 (13...Ne4 14.f4 Bf6 15.a5=) 14.f4 Bc3 15.dc3 (15.Bc3 Ne4=) 15...Ne4 16.Rcd1 Qe7 17.Ba1 Rad8 18.Bb3 Rd1 19.Rd1 (19.Qd1? Rd8 20.Qh5 Nd2–+) 19...Rd8 20.c4 Qh4 21.Rd8 Qd8 22.Qb2 (22.Bd1!?=) 22...Nf6 (22...f6!? 23.Qe2 Qd2 24.Qd2 Nd2–/+) 23.Qe5 =. Bonetti,Shane – edgardcolle, ICC, 2002.

7.Bc4 0–0

8.0–0 a6!? =.

8.0–0 Bd7 9.d4+= a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 cd4 (better is 12...Bc8+=) 13.Nd4 (13.Qd4 Qc7+/–) 13...Qb6 (13...Bh2 14.Kh1 Bc7 15.Qf3=+) 14.Nc3 (14.Nf3 Bc8+=) 14...e5 (14...Qc7!? 15.Bd3 Bh2 16.Kh1 Be5=+) 15.Nb3 Bb4 (15...Bf5 16.Qf3 Bg4 17.Qg3+=) 16.Qe2 (16.Nd5!? Qe6 17.Nf6 (17.Nb4 Qc4 18.Nd3 Bb5 19.Ne5 Qf1 20.Qf1 Bf1 21.Kf1 Nbd7–+) 17...Qf6 18.Qh5+/–) 16...Bc3 (16...Bg4 17.Qd3=) 17.Bc3+= Rc8 (17...Bg4 18.Qb2 Qc7 19.Nd2+=) 18.Bb4 (better is 18.Be5 Bg4 19.f3+/–) 18...Na6?? (18...Bg4 19.f3 Be6 20.Be6 Qe6 21.Nc5+=) 19.Be7?? (19.Ba5 Qa7 20.ba6 ba6+–) 19...Nc7?? (19...Nb8 20.Rc1+=) 20.Bf6 (better is 20.Bc5 Qb5 21.Bb5 Bb5 22.Qb2 Bf1 23.Kf1+–) 20...Qf6+= 21.Nd2 (21.Nc5 Qe7 22.Nd7 Qd7+=) 21...Be6 22.Ne4 Qe7 23.Bd3 Nd5 24.Ng3 Nf6 25.Bf5 b6 26.Be6 Qe6 27.Qd3 Qc4 28.Qf5 Qe6 29.Qd3 Qc4 30.Qf5 Qb5?? 31.Qc8+– Qe8 32.Qc4 h6 33.Ne4 b5 34.Nf6 gf6 35.Qb4 Kg7 36.Rd1 Qc6 37.h3 Qc2 38.Rd6 Qc1 39.Kh2 Qf1 40.Qb5 Qf2 41.Qb6 Qf5 42.g4 Qg6?? 43.e4 Qe4 44.Rf6 Qe2 45.Kg3 Qe1 46.Kg2 Qe2 47.Rf2 Qe4 48.Kg1 Qe1 49.Rf1 Qg3= 50.Kh1 Qh3 51.Kg1 Qg4 52.Kh1 Qh3 53.Kg1 Qg4 54.Kh1 Qh3 (55.Kg1 Qg4=). FrutiniMalini – DualSpace, Caissa's Web, 2004.

8.0–0 Nbd7 9.d3 b6 10.Nbd2 Bb7 11.Qb3 Qe7 12.Qc3 Rfe8 (12...a6 13.ba6 Ba6 14.a4=) 13.Rfd1 (13.Ne4 a6= (< 13...Be4 14.de4 Bc7 15.Rfd1+/–)) 13...e5 (13...a6 14.a4=) 14.Qb3 (14.Ng5 Bd5+=) 14...Rf8 (14...a6 15.Ng5 Rf8 16.ba6 Ba6 17.Nge4=) 15.Rac1 (15.Qa4 Rfd8=) 15...Rad8 (15...a6 16.Nh4 Ng4 17.Nf5=) 16.Qc3 (better is 16.Qa4+=) 16...e4? (better is 16...Rfe8!?+=) 17.Ne4+– Be4 (17...Bc7 18.Nf6 Nf6 19.Ne5+/–) 18.de4 Rfe8 (better is 18...Bc7+–) 19.Rd6! Qd6 20.e5 Ne5 (20...Qe7 21.ef6 Qf6 22.Qc2+–) 21.Ne5 Ne4 (21...Rf8 22.Qb3 Qc7 23.Nc6+–) 22.Nf7 (22.Bf7?! Kf8 23.Nd7 Kf7 24.Qg7 Ke6 25.Qg4 Kf7+–) 22...Nc3 (22...Qd1 23.Qe1 Qe1 24.Re1 Nd2+–) 23.Nd6 Kf8 24.Ne8 Re8 25.Rc3 Rd8 26.Rd3 Rd3 27.Bd3 (27...g6 28.Be5+–) 1–0. pierred – dannyboy238,, 2006.

8.0–0 Nbd7 9.d4 Nb6 10.Nbd2 Nc4 11.Nc4 Nd5? (better is 11...Be7!?+=) 12.e4+– Nf4 13.Nd6 Qd6 14.dc5 Qc5 15.Be5 Ng6 16.Bd6 Qb5 17.Bf8 Nf8 18.Qd4 Bd7 19.Rab1 Qa6 20.Rfc1 Bc6 21.Ne5 Qa2 22.Ra1 Qb3 23.Nc6 bc6 24.Qd6 h6 25.Qc6 Rb8 26.Ra7 Qb2 (26...Rd8 27.g3+–) 27.Qc7 Nd7 (27...Kh7 28.Rf1 Ng6 29.Qf7+–) 28.Rf1 Ne5 (28...Nf8 29.Qf7 Kh7 30.h4+–) 29.Ra2! Qd4 (29...Qa2 30.Qb8 Double attack (30.Qb8 Deflection)) 30.Qb8 (30.Qb8 Kh7 31.Qb1+–) 1–0. b4_player – verte, casual, 2013.

8.0–0 Nbd7 9.d4 cd4 10.Qd4 Nb6 11.Bd3 g6?? (better is 11...Qe7 12.Rd1 Rd8+=) 12.Qf6+– Qf6 (12...e5 13.Qd8 Rd8 14.Nc3+–) 13.Bf6 Nd5 14.Bh4 Bd7 (14...a6 15.Rc1+–) 15.e4 Nb4 16.Rd1 Nd3 (16...Bf4 17.Nc3 Rfc8 18.Be2 Rc3 19.Rd7+–) 17.Rd3 Bb5 (17...Rac8 18.Nbd2 Bh2 19.Kh2 Bb5 20.Rd6+–) 18.Rd6 Bc6 (18...Rfc8 19.Na3 Ba4 20.Bf6+–) 19.Nc3 Rac8 20.Bf6 1–0. Pcmvr – Ulibear,, 2004.

8.0–0 Nbd7 9.d4 Qe7 =.

7.Bc4 Nbd7

8.0–0 b6 9.d4 0–0 10.Qd3 =.

8.0–0 b6 9.d4 Bb7 10.Nbd2 0–0 11.Qc2 (11.Qe2 cd4 12.Nd4 Nc5=) 11...Rc8 (11...cd4 12.Bd4 Rc8 13.Rac1=) 12.Rac1 cd4 13.Bd4 (13.Nd4 Nc5=) 13...Bf3 (13...a6 14.Qd3 (14.ba6? Bf3 15.Nf3 b5–+) 14...e5 15.Bb2=) 14.Nf3 e5 (14...Ba3 15.Rb1=) 15.Bb2+= e4 16.Ng5 Bh2 17.Kh1 (17.Kh2 Ng4 18.Kg1 Qg5 19.Qe4+=) 17...Nc5 (better is 17...Bc7 18.Ne4 Be5+=) 18.Nf7 Qc7 (better is 18...Rf7!? 19.Bf7 Kf7 20.Bf6 Qf6 21.Kh2 Qe6+–) 19.Nd6 (19.Bf6 Rf7 20.Bd4 Bd6 21.Bc5 bc5 22.Qe4 Kh8 23.Bf7 Qf7+–) 19...Kh8 20.Nc8 (20.Kh2 Qd6 21.Kh3 Nd3 22.Bf6 Rf6–+ (22...Nc1?! 23.Bg7 Kg7 24.Rc1–/+)) 20...Rc8? (20...Be5 21.Be6 Ne6 22.Qc7 Bc7 23.Na7+–) 21.Bf6 (better is 21.g3!? Bg3 22.fg3 Qe7 23.Bf6 gf6+–) 21...gf6 22.g3 Bg3 23.fg3 Qg3 24.Bb3 Rd8 25.Qh2 Qe3 26.Bf7 Kg7 27.Qh5 Nd3 28.Rc7 Kh8 29.Bg6 h6 30.Rh7 (30...Kg8 31.Bf7 Kf8 32.Bc4 (32.Rf6? Qc1 33.Kg2 Qb2 34.Kh1 Qf6–+) 32...Qf3 33.Rf3 Nf2 34.Rf2 Rd1 35.Qd1 Ke8 36.Qd7 Kf8 37.Rf6; 30.Rf6 Qe1 31.Kh2 Qd2 32.Kg3 Qe3 33.Kg4 Qe2 34.Kf5 Qf2 35.Ke6 Rd6 36.Kd6 Qf6 37.Kd7 Qg6 38.Qg6 Ne5 39.Ke6 Ng6+–) 1–0. Howard,Chuck – Hendrzak,Joe, corr APCT USA, 1974.

8.0–0 e5 9.Qc2 =.

8.a4 b6 9.0–0 0–0 10.d3 =.

8.a4 b6 9.0–0 Bb7 10.d3 0–0 =.

8.a4 b6 9.0–0 Bb7 10.d4 0–0 11.Nbd2 Qc7 (11...Rc8 12.dc5 Nc5 13.Qc2=) 12.Qb3 (12.Rc1 Rac8=) 12...Rac8 (12...cd4 13.Bd4 e5 14.Rac1=) 13.Rfc1 (13.Rac1 Rfd8=) 13...Qb8 (13...Ne4 14.Ne4 Be4 15.h3=) 14.a5 cd4 15.ed4 (15.Bd4 e5 16.Bb2 Nc5=) 15...Ne4 (better is 15...Bf4!? 16.Rc2 ba5 17.Ra5 Nb6=+) 16.Ne4+= Be4 17.Be6 Rc1 18.Rc1 Nf6 (18...Bf3 19.Bd7 Bh2 20.Kf1+=) 19.Bc4 (19.Ne5 fe6 20.Qe6 Kh8 21.Nf7 Rf7 22.Rc8 Rf8 23.Rb8 Bb8 24.f3=) 19...ba5 (better is 19...Bf3!? 20.Qf3 ba5=) 20.Ne5+/– Qb7 21.f3 (21.Ba3 Ba3 22.Qa3 Bg2 23.Bf7 Rf7 24.Nf7 Kf7+/–) 21...Bd5+= 22.Bd5 Nd5 23.Rc6 Be5 24.Qd5 Bf6 25.Qc4 h6 26.Bc1 Rd8 27.d5 Qd7 28.d6+= Qe8 29.Qe4 Qe4 30.fe4 Be5 31.Ba3+/– Rd7 32.Bc5 f6 33.Ra6 Kf7 34.Ra5 Ke6 35.Ra7 Bd6+= 36.Ra6 Ke5 37.Rd6 Rd6 38.Bd6 Kd6 39.Kf2 Kc5 40.Kf3 Kb5 41.Kf4 g6 42.e5 Kc6 43.ef6 Kd6 44.g4 (44...Ke6 45.g5+–) 1–0. Zschalich,Arndt – Lauckner,Juergen, corr DDR–ch M900, 1988.

8.a4 b6 9.0–0 Bb7 10.d4 Qc7 11.dc5 Nc5 12.Nbd2 =.

8.a4 Qe7 9.a5 =.

6.c4 Bd7

7.a4 0–0 8.Qc2 Re8 9.Ng5 (9.Be5 Be5 10.Ne5=) 9...e5 (better is 9...h6!? 10.Nf3 e5=+) 10.cd5+= h6 (10...Qe7 11.Nc3+=) 11.Ne4 Ne4 12.Qe4 f5 (12...Qg5 13.h4 Qe7 14.g4+=) 13.Qc4 (13.Qc2 a6+=) 13...Qg5 (13...Bc8 14.Nc3+/–) 14.h4 (14.Nc3 Bc8+/–) 14...Qg6 (14...Qd8 15.d3+=) 15.Nc3 Bc8 (15...Qf6 16.g4+=) 16.a5 Nd7 17.0–0–0 (17.g4 e4 18.gf5 Qf5+/–) 17...b6 (17...Nf6 18.d3=) 18.a6 (18.h5 Qh7 19.a6 Nf6+=) 18...e4 (18...Nf6 19.Be2+=) 19.Na4 (19.h5 Qf7 20.d3 Ne5+=) 19...Ne5 20.Be5 Re5 (20...Be5 21.d3+=) 21.f4 (21.Nc3 Bd7+=) 21...Re8 (21...Re7 22.h5 Qe8 23.g4=) 22.Nc3 Bd7 23.Be2 (23.g4 fg4 (23...Qg4? 24.h5+–) 24.h5 Qf7+/–) 23...Kh8 (23...h5!?=) 24.h5 Qf6 (24...Qg2?? 25.Rdg1 Qh1 26.Rh1+–) 25.Rdg1 Rad8 26.g4 fg4 (26...Qf7 27.g5+/–) 27.Bg4+– Bg4 28.Rg4 Qf5 29.Rg6 Bf4? (better is 29...Re7+–) 30.ef4 e3 (30...Rd7 31.Rh4+–) 31.de3 Re3 32.Rhg1 Rde8 (32...Rd7 33.d6 Rf7 34.Ne2+–) 33.Rg7 (33...Re1 34.Kb2 Rg1 35.Rg1 Qh5 36.Qf1+–) 1–0. Stanilko – Golebiowski, Olsztyn, 1961.

7.d4 0–0 =.

7.Bf6 Qf6 8.Nc3 0–0 9.cd5 ed5 10.Nd5 Qh6 11.Nc3 Be6 12.Qc2 Nd7 13.Rc1 Rfe8 14.Ne4 Bd5 15.Nd6 Qd6 16.Be2 Be4 17.d3 Bf3 18.Bf3 (18.gf3?! a6=) 18...Ne5 19.Be4 (worse is 19.Bb7 Nd3 20.Ke2 Nc1 21.Rc1 Rad8+=) 19...Rad8 20.0–0 (20.Qc5?! Nd3 21.Bd3 Qd3=) 20...Nd3 21.Bd3 Qd3 22.Qc5 g6 (22...a6 23.b6+/–) 23.a4 b6 24.Qc4 Re4 25.Qa2 Re7 26.h3 Red7 27.Rc6 Qe4 28.Qc4 Qe5 29.Rc8 Kg7 30.Rd8 Rd8 31.Qc1 Qd6 32.Qc3 Kg8 33.Rc1 Qe7 34.Qb2 Qh4 35.Qa1 Qh5 36.Kh2 Qd5 37.Qf6 Qd7 38.Rc6 Re8 39.Qf4 Qd8 40.h4 Kg7 41.h5! gh5 42.Rc7 Re7 43.Qg5 Kf8 44.Re7 Qe7 45.Qe7 Ke7 46.Kg3 (46.e4+/–) 46...Kf6? (better is 46...Kd6 47.Kf4 Kc5+=) 47.Kf4+– h4 48.Kg4 1–0. pcmvr – pierred (2850), net–, 2016.

6.c4 Nbd7

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

7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

6.Be2 0–0

7.0–0 a6 8.a4 ab5 9.ab5= Ra1 10.Ba1 Nbd7 11.c4 b6 (11...e5 12.d3=+) 12.d4 Bb7 13.cd5 ed5 14.dc5 bc5 15.Qc2 Ne4 16.Nc3 f5 17.Bb2 Qe7 18.Ra1 Nb6 19.Bd3 Rc8 20.Ra7 Ra8 21.Ra8 Ba8 22.Na4 Nd7 23.Nd4 cd4 24.Qc8 Nf8 25.Qa8 (25.Bd4? Bb7 26.Qf5 Qc7–+; 25.ed4? Nd2 26.Qc1 Qg5–+) 25...de3 26.Qd5 (26.fe3 Qh4 27.Qd5 Kh8–+) 26...Kh8 27.g3 (27.fe3 Qh4 28.Bg7 Kg7–+; 27.Qf5?? ef2 28.Kh1 Nc5 29.Qf2 Nd3–+ (29...Na4?! 30.Bd4–+)) 27...ef2 28.Kg2 Qe6 29.Qe6 Ne6 30.b6 Kg8 31.Nc3 Nc3 32.Bc3 g6 33.Bc4 1–0. marekt – DanQuigley,, 2003.

7.0–0 a6 8.a4 ab5 9.ab5= Ra1 10.Ba1 Re8 11.c4 (11.Be5 Be5 12.Ne5 Nbd7=) 11...e5 12.d4 cd4 13.ed4 e4 14.Ne5 Be5?? (better is 14...Nbd7=+) 15.de5+/– (15…Nfd7 16.Qd5+–) 1–0. Molarius,Reijo – Hietanen,P, Finland ch corr, 1997.

7.0–0 a6 8.a4 Nbd7 9.c4 =+.

7.0–0 a6 8.Be5 ab5 9.Bb5 Be5 10.Ne5 Bd7 11.Nd7 Nbd7 =+.

7.0–0 Bd7 8.a4 a6 9.Na3 Qb6 10.Bf6+= gf6 11.c4 ab5 12.Nb5 Bb5 13.ab5 (< 13.cb5 Nd7=) 13...Nd7 14.cd5 ed5 15.Qc2 Ne5 16.Qf5 Nf3 17.Bf3 Be5 (17...Ra1 18.Ra1 Be5 19.Ra4+/–) 18.Ra8+– Ra8 19.Bd5 Qd6? (better is 19...Rd8 20.Qg4 Kh8+–) 20.Be4 Kf8 21.Qh7 Ke7 22.d4 (better is 22.f4!? Bb2 23.Bb7 Rd8+–) 22...cd4 23.f4?? (23…de3 24.Bg6= (< 24.fe5 Qd4 25.ef6 Kd6–/+; 24.Bb7 e2 25.Qf7 Kf7 26.Bd5 Qd5 27.Re1 Qd4 28.Kh1 Qf4 29.Kg1 Bd4 30.Kh1 Qf1 31.Rf1 ef1Q); better is 23.Bb7 Ra7 24.Bc6 de3 25.fe3+–) 1–0. market (2180) – Cerati (1940),, 2002.

7.0–0 Bd7 8.a4 a6 9.Na3 Qe7 10.c4 =.

7.0–0 Bd7 8.a4 a6 9.c4 ab5 10.ab5 Ra1 11.Ba1 Qa5 (11...Bc8!?+=) 12.Bf6+/– gf6 13.cd5 Bb5 14.Nc3 Be2 15.Qe2 Rd8 16.de6 fe6 17.Qc4 Kf7 (17...Qc7 18.Qe6 Qf7 19.Qf5+–) 18.Qh4 Rg8 (18...Kg7 19.Ne4 Be7 20.Qg4 Kf7 21.Qh3+–) 19.Qh7 Rg7 20.Qh5 Ke7 21.Qh8 Kf7 22.Rb1 Qc7 23.Nb5 Qb6 24.Nd6 Qd6 25.Rb7 Nd7 26.h3 Rg8 27.Qh5 Rg6 (27...Kg7 28.Qh4 Qd5+–) 28.Nh4 (28…c4 29.Ng6+–) 1–0. marre (2095) – GMenard (1830),, 2003.

7.0–0 Bd7 8.a4 a6 9.c4 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Qa5 13.Bf6 gf6 14.Nc3 Be5? 15.Ne5+– fe5 16.Qh5 f5 (16...f6 17.f4 ef4 18.Rf4 Qa1 19.Kf2+–) 17.f4 e4 18.Qh6 (18.Qg5 Kh8 19.Qe7 Qd8 20.Qc5 Kg8+–) 18...Qb6 19.Ra1 (19.Qg5 Kh8 20.Qe7 Qd8 21.Qc5 Kg8+–) 19...Qd6+/– 20.Rd1 Qe7 21.Ne2 Qf6 22.Qf6 ½–½. mr5reasons1 (1750) – romast (1755),, 2012.

7.0–0 Nbd7 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0).

7.0–0 Nbd7 8.c4 b6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

7.0–0 Nbd7 8.d3 b6 9.Nbd2 (9.c4 A) 9...e5 A1) 10.Nbd2 Qe7 (10...a6 11.ba6 Ba6 12.cd5 Nd5 13.Ne4 Qe7 14.Qb3 Bb7 15.Nd6 Qd6=) 11.cd5 Nd5 12.Ne4 a6 13.ba6 Ba6 14.Qc2 Bb7 15.Rfc1 Nb4+=; A2) 10.cd5 Nd5 11.Nbd2 Qe7 12.Ne4 a6 13.ba6 Ba6 14.Qc2 Bb7 15.a4 Rfd8=; A3) 10.Nfd2 Bb7 (10...a6 11.Nc3 Bb7 12.Bf3 ab5 13.Nb5 Qe7 14.cd5 Bd5 15.Bd5 Nd5=) 11.Nc3 d4 12.Nce4 Ne4 13.Ne4 Be4 14.de4 Qc7 15.Qd3 a6=; B) 9...dc4 10.dc4 Qc7= 11.Qc2 Bb7 12.Nbd2 Rfd8 13.Rfd1 Ng4 14.h3 Ngf6 15.Ng5 a6=) 9...Bb7 (9...a6 10.ba6 Ba6 (10...Re8 11.c4+= Ba6 12.Qb3 Bb7 13.Rfb1 e5 14.Nh4 Nf8 15.a4 Bc6=) 11.c4 Bb7 12.cd5 Nd5 13.Nc4 Be7 14.Qb3 Bc6 15.a4 Bf6=) 10.e4 (10.c4 Qe7 (10...a6+= 11.ba6 Ra6 12.Qc2 Qe7 13.d4 cd4 14.cd5 Rc8 15.Qd1 Nd5=; 10...Qc7 11.cd5 ed5 12.Qc2 a6 13.a4 Rfe8 14.Rfc1 Ng4 15.h3 Ngf6=) 11.a4 a6 12.ba6 Ra6 13.d4 Ra7 14.cd5 Bd5 15.Qc2 cd4+=) 10...e5 (10...Bf4 11.ed5 Nd5 12.d4+= (12.c4 N5f6 13.d4 a6 14.ba6 Ra6 15.Qb3 Qc7+=) 12...cd4 13.Bd4 e5 14.Bb2 Qc7 15.Re1 Rad8+=) 11.ed5 (11.c4 de4 12.de4 a6 13.Qc2 Qe7 14.Rfd1 Rfd8 15.ba6 Ra6=) 11...Nd5 (better is 11...Bd5 12.a4 (12.Ne4 Qc7 13.Nd6 Qd6 14.Re1 Rfe8 15.Qc1 a6=) 12...Qc7+= 13.Re1 a6 14.ba6 Ra6 15.d4 Ra5=) 12.d4? (better is 12.Nc4 Qc7 13.Nfd2= (13.Re1 a6 14.ba6 Ba6 15.Nfd2 Bb7=) 13...a6 14.Bf3 e4 15.de4 Bh2+=) 12...e4?? (better is 12...cd4 13.Nc4 Bc7–+) 13.Ne4+/– Ne3 (13...Bf4 14.dc5 bc5 15.Re1+/–) 14.fe3 Be4 15.dc5 Bc5 16.Nd4 Qg5= 17.Bf3 Qe3 18.Kh1 Nf6 19.Nf5+/– Bf3 20.Rf3+– Qg5 21.Bf6 Qf6+/– 22.Ng7 Qe5 23.Rg3 Kh8 24.Rb1 Rad8+= 25.Qf3 Rd2= 26.a4 Rfd8 27.Rf1?? Rf2!!–+ 28.Rf2 Bf2 29.Rg4 Qe1# 0–1. Wiedermann,Jan – Strelczyk,Anna, Open, Marianske Lazne CZE, 2009.

7.0–0 Nbd7 8.d4 c4 9.a4 b6 (9...a6 10.Ba3 Ba3 11.Na3=) 10.Ba3= Qe7 11.Bd6 Qd6 12.Nc3 Bb7 13.Qd2 Rfc8 14.Rfb1 h6 15.a5 Rc7 (15...ba5 16.Ra5 a6 17.Qe1=) 16.a6 (16.ab6 ab6 17.Ra8 Ba8+=) 16...Bc8 17.Rd1 (17.Qc1 g6+=) 17...Nf8 (17...Ne4 18.Qe1 Nc3 19.Qc3=) 18.e4 de4 19.Ne5 Bd7 20.Qf4 Rac8 21.Ra4 Be8 22.Qd2 (22.Rc4? Rc4 23.Bc4 Rc4 24.Ne4 Ne4 25.Qe4 Rc7–+ (25...Bb5?! 26.Nc4 Bc4 27.Qb7–+)) 22...Nd5 (22...Ng6 A) 23.Rc4 Ne5 24.de5 Qd2 25.Rd2 Rc4 26.Bc4 Rc4 27.ef6 gf6–+ (27...Rc3?! 28.Rd8=+); B) 23.Nc4?! Qf4=; C) 23.Ng6 fg6 24.Rb1=) 23.Ne4+= (23.Bc4? Nc3 24.Qc3 Bb5–+) 23...Qe7 24.Rb1 c3 25.Qd3 Nd7 (25...f6!? 26.Nc4 Rd8+=) 26.Nc4+/– N7f6 27.Nc3 Nf4 28.Qf3 Ne2 (28...N6d5 29.Nd5 ed5 30.Qf4 Qe2 31.Na3+=) 29.Qe2+/– Kf8 30.Qd3 Nd5 31.Nd5 ed5 32.Ne3 Rc3? (better is 32...Qe6+/–) 33.Qh7+– f6 34.Nf5 (better is 34.Nd5 Qe2 35.Nc3 Rc3 36.d5 Rc2 37.Rg4 Qf2 38.Kh1+–) 34...Qd7?? (34...Qf7 35.Nd6 Rc2 36.Nc8 Rc8+–) 35.Re1 Qf5 (35...Qf7 36.Ne7 Qe7 37.Re7 Ke7 38.Qg7 Kd6 39.Qa7 Bb5 40.Qb6 Bc6 41.Qb4 Kd7 42.Qc3 Ba4 43.Qh3 Kc7 44.Qh6 Kb6 45.Qf6 Rc6 46.Qd8 Ka6+–) 36.Qf5 Bf7 (36...Bb5 37.Raa1 Rc2 38.Qe6+–) 37.Ra2 (better is 37.Qd7!? R3c7 38.Qd6 Kg8+–) 37...Rc2 (38.Rc2 Rc2 39.Qc2 Bh5 40.Qc8 Kf7 41.Qe8; 37...Rd8+–) +–. market (1925) – Orla (2130),, 2002.

6.Be2 a6

7.0–0 ab5 8.Bb5 Bd7 9.Qe2 Ra5 10.Bd7 Qd7 (10...Nbd7 11.Nc3+=) 11.Bf6 gf6 12.Nc3 (12.c4 dc4 13.Qc4 Ra4=) 12...f5 (12...b5 13.a3=) 13.Rab1 (13.Rfb1 Nc6=) 13...Nc6 14.Nb5 (14.Rb6 Nb4=) 14...0–0 (14...Ra2 15.c4 Be5 16.Ne5 Ne5 17.cd5 ed5 18.Nc3+=) 15.Nd6 Qd6 16.Rb7 Ra2 17.Ng5 h6 (17...Rc2 18.Qh5 h6 19.Qh6 Qh2 20.Kh2 Rb8 21.Qh7 Kf8 22.Qf7) 18.Qh5 f7 ½–½. adalbert (2155) – soltpl (2060),, 2016.

7.0–0 c4 8.d3 (8.a4!?=) 8...ab5+= 9.dc4 (9.Nbd2 0–0+=) 9...bc4–/+ 10.Ne5 (10.Nbd2 Qc7 11.Bf6 gf6–/+) 10...Qc7 11.Nf3 0–0 12.Bf6 gf6 13.Qd4 Qe7 14.Qg4 Kh8 15.Nc3 e5 (better is 15...Nc6 16.Qh5 Ra5–/+) 16.Nd5? (better is 16.Qh5 Be6 17.Rfd1+=) 16...Bg4–+ 17.Ne7 Bf3 (better is 17...Be7 18.Rfb1 Ra7 19.Bc4 Nc6–+) 18.Nf5?? (better is 18.Bf3 Be7 19.Rfb1–+) 18...Be2 19.Rfe1 Ba3 20.Re2 c3 21.Rd1 Bb2 22.Rd6 Ra2 23.h4 Nc6 24.Re1 (24.Rd7 Bc1–+) 24...Ba3 25.Rd7 b5 (25...Rc2 26.Rb7 Rc8 27.Ra1–+) 26.Nh6 (26.Rc7 Na5 27.Rd1 Rc2–+) 26...Kg7 27.Nf5 Kg6 28.g4 h5 29.Kh1 (29.Re2 hg4 30.Ng3 Nb4–+) 29...hg4 30.e4 Nd4 (better is 30...Rc2 31.Rg1 Kh5 32.Rc7–+) 31.Ne7 (31.Nd4 ed4 32.Rg1 Rc2–+) 31...Be7 32.Re7 Rc2 0–1. Bobby_G – Galloway,, 2001.

7.Nc3 0–0 =.

6.Be2 Nbd7

7.0–0 0–0 8.a4 b6 9.d3 Bb7 10.Nbd2 a5 11.c4 Qc7 12.h3 Rad8 13.Qc2 e5 14.d4 ed4 15.ed4 Rfe8 16.Bd3 dc4 17.Bc4 Ne4 18.Bf7 Kf7 19.Ne4 Kg8? (19...Be4!? 20.Ng5 Kf8 21.Ne4 cd4=) 20.Nd6 (better is 20.Qc4!? Kh8 21.Neg5+–) 20...Qd6+/– 21.Ng5 Nf8 22.Rad1 (22.dc5 Qc5 23.Qc5 bc5+/–) 22...Qf6 23.f4 cd4 24.Qc4 Bd5 25.Qd4 Qg6 26.Qf2 h6 27.Nf3 Bb3? 28.Rd8 Rd8 29.Ne5 Qc2+/– 30.Qc2 Bc2 31.Ra1 Ne6 32.Nc6 Rd2 33.Bc3 Re2 34.Nd4 Nd4 35.Bd4+/– Re4 36.Bb6 Ra4 37.Ra4 Ba4 38.Ba5 Bb5 39.Kf2 g6 40.g3 h5 41.h4 Kf7 42.Ke3 Ke6 43.Be1 ½–½. Olcum,Ahmet – Sherifaj,Pasho, 23rd ECC Men, Kemer TUR, 2007.

7.0–0 0–0 8.d3 Qc7 9.h3 (9.Nbd2 e5+=) 9...e5 (9...a6 10.ba6 b5 11.a4 ba4 12.c4+=) 10.Nbd2 b6 (10...Rd8 11.c4=) 11.Rc1 (11.c4 a6+=) 11...a6–/+ Black gets the initiative 12.a4 (12.ba6 Ba6 13.c4 dc4 14.dc4 Bb7–/+) 12...ab5 13.ab5 Ra2 14.Rb1 (14.Bc3 d4 15.Ba1 Bb7–/+) 14...h6 (14...Bb7 15.c4–/+) 15.e4 (better is 15.c4!? e4 16.Nh4+=) 15...c4–/+ 16.dc4 de4 17.Nh2 Nc5 18.Ng4 Ng4 19.Bg4 f5 20.Be2 Rd8 21.Qc1 (21.Qe1 Be6–+) 21...Be7 22.Nb3 (22.Rd1 Bg5 23.h4 Bh4–+) 22...Bg5 23.Qe1 Nb3 24.cb3 Rd2 25.h4 Bf4 (25...Rab2 26.Rb2 Rb2 27.hg5 hg5 28.c5 Qc5 29.Bc4 Kf8 30.Qd1=; 25...Rdb2 26.Rb2 Rb2 27.hg5 hg5 28.c5 Qc5 29.Bc4 Kf8 30.Qd1=) 26.g3 Rab2 27.Rb2 Rb2 28.gf4 ef4 (worse is 28...Rb3 29.Qd1 Rb2 30.fe5–+) 29.Qd1 Qe7 (29...Qe7 30.c5 Be6–+ (30...Qc5?? 31.Bc4 Kh7 32.Qd8+–); 29...f3 30.Bf3 ef3 31.Qf3–+) 0–1. Brzoza,Miroslaw – Soja,Rudolf, corr ICCF Cup8/9 V145, 1990.

7.0–0 e5 8.d3 Qc7 9.e4 0–0 10.ed5 Nd5 11.Nbd2 Nf4 12.Nc4 e5 becomes the focus of attention 12...f6 13.a4 a6 14.Nfd2 ab5 15.ab5 Ra1 16.Ba1 Nb6 17.Bg4 Bg4 18.Qg4 Nc4 19.Nc4 Rd8 20.Bb2 Qd7 21.Qd7 Ne2 22.Kh1 Rd7 23.Ra1 Kf7 24.g3 Nd4 25.Nb6 Re7 26.c4 Nc2 27.Ra7 Bb8 28.Ra8 ½–½. Van Rooijen,Peter (1690) – Nenciulescu,Silviu Catalin (2055), IECG, 2004.


6.a4 a6 7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 Bd6 11.0–0 0–0 12.Bc3 Nd5 13.Qb3 Nc3 14.Nc3 Be8 15.Ne4 Be7 16.d4 cd4 17.Nd4 Nd7 18.Ra1 Nb6 19.Rc1 e5 20.Nf3 Bf6 (20...Qc8!?+=) 21.Nf6 Qf6 22.Rd1 (22.Bd3!?+/–) 22...Bd7+= 23.Be2 Be6 24.Qc3 e4 25.Qf6 gf6 26.Nd4 Rc8 27.h3 Bc4 (27...Nd5 28.Ne6 Nc3 29.Rd8 Rd8 30.Nd8 Ne2 31.Kf1+/–) 28.Bg4 Rc5 Exerts pressure on the isolated pawn 29.Rc1 Re5 30.Rb1 h5 31.Bd1 Bd3 32.Bc2 Nc4 33.Bd3 ed3 34.Rd1 d2 35.Kf1 f5 36.g3 h4 37.gh4 Rd5 38.Ke2 f4 39.Kf3 (better is 39.Nf3!?+=) 39...fe3+= 40.fe3 Kh7 41.Ke4 Re5 42.Kf4 Re3 (42...Rh5!?+=) 43.Rd2= Rh3 44.Kg4 (44.Rf2!?=) 44...Rh4–/+ (worse is 44...Nd2 45.Kh3 Ne4 46.Kg4+=) 45.Kh4 Nd2 46.Kg5 Ne4 47.Kf5 Nd6 48.Ke5 Nb5 (48...Nc8!?–/+) 49.Nb5= Kg6 50.Nd6 b6 51.Nf7 ½–½. Hal1958 – Josef1901,, 2003.

6.c4 a5 7.a4 Bd6 8.Qc2 0–0 9.Be2 dc4 10.Bc4 b6 11.0–0 e5 12.d3 Be6 13.Nbd2 Nbd7 14.Be6 fe6 15.Qc4 Qe7 16.Ng5 1–0. K Reimer – U Schaefer, Eisenberg Pfalz 1993.

6.c4 b6 7.Be5 Bc8 8.cd5 (8.Nc3 Nbd7 9.Bf4 a6 10.Be2 Be7 11.0–0 dc4 12.Bc4=; 8.d4 Nbd7 9.cd5 ed5 10.Nc3 c4 11.Qa4 a5 12.a3=; 8.Be2 Nbd7 9.Bf4 Be7 10.d4 Bb7 11.dc5 bc5 12.Nbd2=) 8...ed5 9.Nc3 (9.Be2 Nbd7 10.Bf4 Be7 11.Nc3 Bb7 12.d4=) 9...Bb7 (9...Nbd7 10.d4 c4 11.Qa4 Be7 12.Be2=) 10.Bd3 (10.Be2 Nbd7 11.d4 Ne5 12.de5=) 10...Nbd7 11.Bf4 c4 (11...Be7 12.Bf5=) 12.Be2 (12.Bf5=) 12...Nc5 13.Nd4 Bd6 (13...Ne6 14.Ne6 fe6 15.0–0=) 14.Bd6+= Qd6 15.0–0 (15.Nf5 Qf8+=) 15...0–0 16.Qc2 Rfe8 17.g3 (better is 17.Nf5 Qd7 18.Rfc1+=) 17...Re7?? (better is 17...Ne6=) 18.Nf5+/– Qe6 19.Ne7 Qe7 20.d3 cd3 21.Bd3 Rc8 22.Rac1 Ne6 (22...Nfe4 23.Ne2+–) 23.Rfd1 Ng5? 24.Nd5! Nd5 25.Qc8 Bc8 26.Rc8 Qf8 27.Bh7! Nh7 28.Rf8 Kf8 29.Rd5 Ke7 30.Rd4 Ng5 31.Ra4 Kd6 32.Ra7 Kc5 33.f4 Nf3 34.Kg2 Ne1 35.Kf2 Nd3 36.Ke2 Nb4 37.a3 Nd5 38.Rf7 g6 39.Kd3 Kb5 40.e4 Kc5 41.ed5 Kd5 42.Rf6 b5 43.Rg6 (43.Rg6 b4 44.Rg5 Kd6 45.Rd5 Kc6 46.Rd6 Kd6 47.ab4+–) 1–0. pierre – badme, internet, 2008.

6.c4 Bd6 7.Be2 0–0 8.0–0 Be8 (8...a6 9.Qa4=) 9.Bf6 Qf6 10.Nc3 Nd7 (10...dc4 11.Ne4 Qe7 12.Bc4+=) 11.cd5+/– Nb6 12.Ne4 Qe7 13.de6 fe6 14.Rc1 Rc8 15.Qb3 Bd7 (15...Bh5 16.Nd6 Qd6 17.Qa3+/–) 16.Qa3+– Rf3 (better is 16...Bb8+–) 17.gf3 Rf8 (17...Bb8 18.Rc5 Rf8 19.f4+–) 18.Qa7 (18.Nc5 Qg5 19.Kh1 Qh5–+; worse is 18.Nd6 Qd6 19.d4 e5 20.dc5 Qe7+–) 18...Bc7 19.f4 (19.Qb7 Bb5 20.Rc5 Bh2 21.Kh2 Qb7 22.Rb5 Rf5+/–; 19.Rc5 Bb5 20.Rb5 Ra8 21.Qb6 Bb6 22.Rb6 Qc7+–; 19.Nc5 Qd6 20.f4 Rf4=) 19...e5 (19...Bc8 20.Nc5 e5 21.fe5 Qg5 22.Kh1 Qe5 23.f4+–) 20.Rc5 (worse is 20.Qb7 Bc8 21.Qc6 ef4 22.Rc5 Bd8+–; worse is 20.Nc5 Bh3 21.Qb7 Bf1 22.Kf1 ef4+–) 20...Rc8 (20...Bd8 21.Re5 Qf7 22.Ng5+–) 21.Qb7 Bd8 22.Rc8 Bc8 (22...Nc8 23.fe5 Nb6 24.d4+–) 23.Qe7 Be7 24.fe5 Nd7 (24...Bb7 25.Nc3+–) 25.Nd6 Bd6 26.ed6 Ne5 (26...Nb8 27.Rc1 Be6 28.b6+–) 27.Rc1 Bb7 28.Rc7 Nf3 29.Bf3 Bf3 30.d7 (30.d7 Kf7 31.d8Q Kg6 32.Qd6 Kh5 33.Qe5 Kh4 34.Rg7 h6 35.Qg3 Kh5 36.Qh3#) 1–0. pierre – startw, internet, 2010.

6.Be2 c4 7.a4 a6 8.Nc3 Bb4 9.Ne5 (9.0–0 0–0=) 9...ab5 (9...0–0 10.0–0=) 10.Nd7 (10.ab5 Ra1 11.Qa1 Bc3 12.Bc3 Bb5=) 10...Bc3 (10...Nbd7 11.ab5 0–0 12.0–0+=) 11.Bc3 (11.ab5? Ra1 (11...Nbd7?! 12.Bc3 0–0 13.Ra8 Qa8 14.d3=) 12.Ba1 Ba1 (12...Qd7?! 13.Bc3 Qb5 14.Qa1=) 13.Nb8 Be5–+ (13...Qb8?! 14.Qa1 0–0 15.0–0=)) 11...Nbd7 12.ab5 0–0 13.d3 (13.Ra8 Qa8 14.d3 Qa4=) 13...Ra1 (13...cd3 14.Bd3 Qc7 15.Bb2=) 14.Qa1 (worse is 14.Ba1 Qa5 15.c3 Qb5 16.dc4 dc4–/+) 14...Qa8 (better is 14...cd3!? 15.cd3 Qb6=) 15.dc4+/– Qa1 16.Ba1 dc4 (16...Rc8 17.cd5 Rc2 18.Bf6 Nf6 19.de6 fe6 20.Rf1+=) 17.Bc4 Rc8 18.Bd3 Nc5 19.Ke2 Nd3 (better is 19...Nd5+/–) 20.Kd3 (better is 20.cd3!? Nd5 21.Rb1+/–) 20...Ng4+= 21.Rf1 Nh2 22.Rc1 Ng4 23.f3 Rd8 24.Ke2+/– Nf6 25.Bf6 gf6 26.c4 Kf8 27.Rd1 Rd1 28.Kd1 Ke7 29.c5 h5 30.f4 f5 31.Ke2 h4 32.Kd3 f6 33.Kd4 Kd7 34.Kc4 Kc7 35.Kb4 Kd7 36.Ka4 Kc8 37.c6 bc6 38.bc6 Kc7 39.Kb5 Kc8?? 40.Kb6 e5 41.Kc5 (41.Kc5 Kc7 42.Kd5+–) 1–0. Kleinke,Uwe – Meixelsberger, corr DDR–ch I730, 1979.

6.Be2 Be7 7.0–0 a6 8.a4 0–0 9.c4 dc4 10.Bc4 Ne4 11.Qc2 ab5 12.Bd3 Nd6 13.Bh7 Kh8 14.Ne5 (14.ab5 Ra1 15.Ba1 Bb5=) 14...Nc6 (better is 14...ba4 15.Bd3 b6+=) 15.Ng6?? (better is 15.ab5 Ne5 16.Be5 Ra1 17.Ba1 Bb5 18.Rc1=) 15...fg6–+ 16.Qg6 Bf6 17.Qh5 Nf7 18.Bg6 (better is 18.Be4!? Nh6 19.ab5 Bb2 20.Ra8 Qa8 21.bc6 Bc6 22.Bc6 bc6 23.Qc5–/+) 18...Nh6–+ 19.g4?? (19.Bf6 Qf6 20.Nc3 ba4–+) 19...Be8 (better is 19...Bb2 20.Ra2 Bf6–+) 20.Bf6 (20.ab5 Bg6 21.Qg6 Ne7 (21...Bb2?! 22.Ra8 Qa8 23.bc6–+) 22.Ra8 Qa8–+ (worse is 22...Ng6 23.Rd8 Bd8 24.h3–+; 22...Bb2 23.Rd8 Ng6 24.Rf8 Nf8 25.h3+=)) 20...Qf6 (20...Rf6?! 21.Be8 Qe8 22.ab5+=) 21.Be8 Rae8 (21...Qa1 22.Bc6 bc6 23.g5–+) 22.g5? (22.ab5 Qa1 23.bc6–+) 22...Qf5 (better is 22...Qa1 23.ab5 Ne5–+) 23.ab5–/+ Ne5 24.f4 Nd3 25.Nc3 Kg8 26.Qf3 Ng4 27.h3 Nge5 28.Qg3+/– c4 29.e4 Qf7 30.fe5 Qc7 31.g6 Ne5 32.Kg2 Qd6 33.Kh1 Rf6 34.Rf6 gf6 35.Qh4 Qe7 36.Rf1 Rf8 37.Qg3 Qg7 38.Rg1 f5 39.ef5 Rf5 40.h4 b6 41.Ne4 Qb7 42.Qg2 Nf3 43.Ng5 Qd5 d2 gets attention 44.Nf3 Rf3 45.Re1 Qf5 46.Re3 0–1. Schumacher,Dirk (2025) – Helms,Sven (1975), Mecklenburg VP LL, 2005. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 c5 5.e3 Bd7)

6.Ne5 Be7 7.Nd7 Nbd7 8.Be2 Qb6 9.0–0 c4 10.Nc3 0–0 11.a4 a6 12.a5 Qc7 13.d4 ab5 14.Nb5 Qc6 15.Nc3 Bb4 16.Na4? (16.f3 Ba5 17.Qe1 b5–/+) 16...Ba5 (16...c3 17.Bc3 Bc3 18.Nc3 Qc3 19.Qd3–+) 17.c3 (17.Ba3 Rfe8 18.Nc5–+) 17...Nb6 (better is 17...b5!? 18.Nc5 Nc5 19.dc5 Qc5–+) 18.Nc5 Nbd7 (18...Nc8 19.Qa4–/+) 19.Nd7 (19.Na4 Bc7 20.Qc2–+) 19...Nd7 20.Ra2 b6 21.Qa1 Ra7 22.Rc1 Rfa8 23.Ba3 b5 24.Bb4 Qb6 25.Rb1?? (better is 25.Ba5 Ra5 26.Ra5 Qa5 27.Qa5 Ra5 28.Kf1–/+) 25...Bb4–+ 26.Ra7 Ra7 (26...Qa7?! 27.Qa7 Ra7 28.Rb4–+) 27.Qb2 Ba3 28.Qb5 Qb5 29.Rb5 Bc1 30.g3 (30.e4 Ra2 31.Bf1 Rb2–+) 30...h6 (30...Bd2 31.e4 de4 32.Bc4–+) 31.h4 (31.e4 Nf6 32.ed5 ed5–+) 31...Bd2 32.Kg2 Bc3 33.Rb1 Nf6 34.f3 (34...Bd2 35.e4–+; 34.Rc1 Ra3–+) 1–0. MasterofDisaster – acB, Live Game Caissa's Web, 2004.

6.a4 Be7

7.c4 0–0

8.Qb3 a6 9.Nc3 dc4 (9...ab5 10.ab5 Ra1 11.Ba1 Bc8 12.Be2 dc4 13.Qc4 Nbd7 14.0–0 Nb6 15.Qb3=; 9...Bc8 10.Be2 (10.Bd3 ab5 11.ab5 Ra1 12.Ba1 dc4 13.Bc4 b6 14.Qc2 Bb7 15.e4=) 10...ab5 11.ab5 Ra1 12.Ba1 dc4 13.Qc4 Nbd7 14.0–0 Nb6 15.Qh4=; 9...Qb6 10.cd5 (10.a5 Qd6 11.d4 ab5 12.Nb5 Bb5 13.Qb5 cd4 14.Ba3 Qc7 15.Be7+=) 10...ed5 11.Nd5 Nd5 12.Qd5 ab5 13.ab5 Ra1 14.Ba1 Bb5 15.Qb3=) 10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Qa5 (12...Bd6 13.0–0 e5 14.d4 cd4 15.ed4=) 13.0–0 Rd8 14.Bb2 (14.Rd1 Bd6 15.d4+=) 14...Qc7 (14...Qb6 15.Ra1+=) 15.Rc1 (15.Ra1+=) 15...b6 16.d4 Bc8 17.d5 e5 18.d6 Bd6 (18...Qd6 19.Bf7 Discovered attack; 18...Rd6 19.Bf7 Double attack (19.Bf7 Discovered attack; 19.Ne5 Decoy; 19.Ne5 Interception); 18...Bd6 19.Ng5 Combination) 19.Ng5 Rf8 20.Rd1 Bg4 (better is 20...e4 21.h3 Bh2 22.Kh1 Qe7 23.Bf7 Kh8+/–) 21.Rd6?? (better is 21.Nf7 Rf7 22.Bf7 Qf7 23.Qf7 Kf7 24.Rd6+–) 21...Qd6= 22.Nf7 Rf7 23.Bf7 Kf8 24.f3 Bf5 25.Bd5 Nbd7 26.e4 Bg6 27.Qa4 Be8 28.Qa8 Nb8 29.h3 Nh5 30.Bc1 h6 31.Be3 Qc7 32.Bc4 Nf6 33.Kf2 Bf7 34.Bf7 Kf7 35.Qa2 Ke7 36.g4 Qd7 37.g5 hg5 38.Qa8 Qd8 39.Qb7 Nbd7 40.Bg5 Kf8 41.Nd5 Kg8 42.Qc6 Ne4 43.fe4 Qg5 44.Qd7 Qd2 45.Kg3 Qd3 46.Kg4 Qe4 47.Kg5 Qg2 48.Kh5 Qf3 49.Kg6 Qe4 50.Qf5 Qg2 51.Qg4 Qc2 52.Kh5 Qh7 53.Kg5 Qh6 54.Kf5 Qd6 55.Ke4 c4 56.Qc8 Kh7 57.Qc4 Qg6 58.Ke5 1–0. Stanciu,Ad (1985) – Oprita,Matei, 3rd Gaudeamus Cup, 2011.

8.Qb3 a6 9.Bd3 A) 9...b6 10.Nc3 (10.0–0 Bc8 11.Nc3 dc4 12.Qc4 Bb7 13.Be2 ab5 14.ab5 Ra1 15.Ba1=; 10.Na3 Bc8 11.Qc2 Bb7 12.cd5 ed5 13.0–0 Ne4 14.Be2 Bf6 15.d3=) 10...dc4 11.Qc4 ab5 12.ab5 Ra1 13.Ba1 Bd6 14.0–0 Bc8 15.Ne4+=; B) 9...dc4 10.Bc4 (10.Qc4 b6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 Bc8 14.Bf6 Bf6 15.Be4=) 10...ab5 11.ab5 Ra1 12.Ba1 Bd6 13.d4 Qe7 14.dc5 Bc5 15.0–0+=; C) 9...ab5 10.ab5 Ra1 11.Ba1 Bd6 12.Bf6 Qf6 13.cd5 Re8 14.Nc3 e5 15.Qc2+=; D) 9...Bc8 10.Nc3 (10.0–0 b6 11.Nc3 Bb7 12.cd5 ed5 13.Qc2 Re8 14.Rfb1 Bc8 15.Be2=; 10.Ne5 Nbd7 11.0–0 Ne5 12.Be5 Ng4 13.Bb2 Bd6 14.f4 Qh4 15.h3=; 10.Na3 b6 11.Qc2 Bb7 12.cd5 ed5 13.0–0 Re8 14.Be2 Bd6 15.Rfb1=) 10...dc4 11.Bc4 ab5 12.Bb5 Bd6 13.0–0 e5 14.d3 Qb6 15.Ng5=.

8.Qb3 a6 9.d4 A) 9...b6 10.dc5 (10.Bd3 cd4 11.Bd4 Bc5 12.Be5 Bc8 13.cd5 Nd5 14.0–0 Nd7 15.Bb2=) 10...Bc5 11.Bd3 Qe7 12.0–0 dc4 13.Qc4 Rd8 14.Rd1 h6 15.Nbd2+=; B) 9...Qa5 10.Bc3 Qc7 11.dc5 Rc8 12.c6 bc6 13.b6 Qb7 14.a5 c5 15.Bd3=; C) 9...Re8 10.dc5 Bc5 11.Bd3 dc4 12.Qc4 Bd6 13.Ng5 Qe7 14.Nh7 Nd5 15.Qg4+/–; D) 9...Ne4 10.ba6 (10.cd5 ab5 11.ab5 Ra1 12.Ba1 cd4 13.Bd4 Qa5 14.Nbd2 Rc8 15.Bb2–/+) 10...Ra6 11.cd5 Rb6 12.Qc2 ed5 13.a5 Rc6 14.Nc3 Nc3 15.Bc3=.

8.Qb3 a6 9.Be2 A) 9...dc4 10.Qc4 (10.Bc4 ab5 11.ab5 Ra1 12.Ba1 Nd5 13.0–0 Nb6 14.d3 Nc4 15.dc4=) 10...b6 11.0–0 Bc8 12.d4 Bb7 13.dc5 ab5 14.ab5 Ra1 15.Ba1+=; B) 9...b6 10.d4 (10.d3 dc4 11.dc4 Bd6 12.0–0 Qe7 13.Ne5 Bc8 14.a5 ba5 15.Ra5=; 10.0–0 Bc8 11.Nc3 dc4 12.Qc4 Bb7 13.d4 Bd5 14.Nd5 ed5 15.Qc2=) 10...cd4 11.Bd4 dc4 12.Bc4 ab5 13.ab5 Ra1 14.Ba1 Ne4 15.0–0=; C) 9...Bd6 10.0–0 (10.Nc3 ab5 11.Nb5 Be7 12.0–0 dc4 13.Qc4 Bc6 14.Rfc1 Bd5 15.Qc2=; 10.Na3 Bc8 11.ba6 ba6 12.0–0 Nc6 13.Bf6 Qf6 14.cd5 Rb8 15.Qc3+=; 10.d4 cd4 11.Bd4 dc4 12.Bc4 Qe7 13.0–0 e5 14.Bc3 ab5 15.ab5=) 10...dc4 11.Bc4 ab5 12.ab5 Ra1 13.Ba1 Qe7 14.Rd1 Rc8 15.Nc3=; D) 9...ab5 10.ab5 Ra1 11.Ba1 Qb6 12.d4 Rc8 13.0–0 dc4 14.Bc4 Ne4 15.Nc3=.

8.Qb3 b6 A) 9.Ne5 A1) 9...a6 10.d3 (10.d4 cd4 11.Bd4 ab5 12.cb5 Qc7 13.Bd3 Qc1 14.Qd1 Bb4 15.Ke2=; 10.Nd7 Qd7 11.Be2 Rd8 12.d4 Ne4 13.0–0 ab5 14.Qb5 Qc7 15.cd5=; 10.ba6 Na6 11.Be2 Nb4 12.0–0 Qc7 13.Rc1 Rfd8 14.cd5 Nfd5 15.Nd7=) 10...Bd6 11.Be2 Bc8 12.0–0 Nbd7 13.f4 ab5 14.ab5 Ra1 15.Ba1=; A2) 9...Bd6 10.d4 (10.Na3 Bc8 11.Be2 Bb7 12.0–0 a6 13.ba6 Na6 14.a5 Nb4 15.ab6=; 10.Bd3 a6 11.Na3 Bc8 12.0–0 Bb7 13.ba6 Na6 14.Nb5 Be7 15.Bc3=; 10.Be2 Bc8 11.0–0 Bb7 12.f4 a6 13.d3 Nfd7 14.Nd7 Qd7 15.Nd2=) 10...Qc7 11.Bd3 cd4 12.ed4 dc4 13.Nc4 Rc8 14.Nc3 Be7 15.0–0=; B) 9.cd5 B1) 9...Nd5 10.Nc3 (10.Bc4 Bc8 11.0–0 a6 12.d4 ab5 13.ab5 Ra1 14.Ba1 Bb7 15.Nbd2+=) 10...Nc3 11.dc3 a6 12.Rd1 Qc7 13.c4 Rd8 14.Bd3 Qb7 15.0–0+=; B2) 9...ed5 10.Bf6 Bf6 11.Qd5 Na6 12.d4 Nb4 13.Qb3 Qe7 14.Be2 Rac8 15.Nc3=; C) 9.Be2 C1) 9...dc4 10.Bc4 (10.Qc4 a6 11.0–0 Bc8 12.Nc3 Bb7 13.d4 Nbd7 14.Rfc1 cd4 15.Nd4=) 10...a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 Bc8 14.d4 Bb7 15.Nbd2=; C2) 9...a6 10.d4 (10.0–0 Bc8 11.Nc3 Bb7 12.ba6 Na6 13.cd5 ed5 14.d4 c4 15.Qc2=; 10.d3 dc4 11.dc4 Bd6 12.0–0 Qe7 13.Ne5 Bc8 14.a5 ba5 15.Ra5=) 10...cd4 11.Bd4 dc4 12.Bc4 ab5 13.ab5 Ra1 14.Ba1 Ne4 15.0–0=; C3) 9...Bc8 10.0–0 (10.Nc3 a6 11.0–0 Bb7 12.ba6 Na6 13.cd5 ed5 14.d4 c4 15.Qc2=; 10.d3 Bb7 11.0–0 a6 12.Nbd2 Bd6 13.Rfb1 Nbd7 14.ba6 Ra6 15.cd5=; 10.Ne5 Bb7 11.0–0 a6 12.d3 dc4 13.Nc4 ab5 14.ab5 Ra1 15.Ba1=) 10...a6 11.Nc3 dc4 12.Qc4 Bb7 13.d4 Bd5 14.Nd5 ed5 15.Qc2=; C4) 9...Bd6 10.0–0 (10.Nc3 dc4 11.Bc4 Bc8 12.Rd1 Bb7 13.d4 cd4 14.Rd4 Qc7 15.Be2=; 10.Na3 Bc8 11.0–0 Nbd7 12.Qc2 Bb7 13.d3 Re8 14.Bc3 Qc7 15.cd5=; 10.Ne5 Bc8 11.0–0 Bb7 12.f4 Nbd7 13.Bf3 dc4 14.Nc4 Bf3 15.Rf3=) 10...a6 11.Nc3 Bc8 12.d3 Bb7 13.cd5 Nd5 14.Ne4 Be7 15.ba6=; D) 9.Nc3 Bc8 10.Be2 (10.Rd1 Bb7 11.d4 Nbd7 12.cd5 ed5 13.dc5 Nc5 14.Qc2 Rc8 15.Bd3=) 10...a6 11.0–0 dc4 12.Qc4 Bb7 13.d4 Bd5 14.Nd5 ed5 15.Qc2=.

8.Qb3 Bc8 A) 9.a5 A1) 9...b6 10.a6 (10.ab6 Qb6 11.d4 Nbd7 12.Nc3 cd4 13.Nd4 Bb7 14.cd5 Nc5 15.Qd1=; 10.Bc3 a6 11.ab6 Qb6 12.d4 Nbd7 13.Nbd2 Rb8 14.Ra5 Qc7 15.Qc2=; 10.Be2 a6 11.ab6 Qb6 12.Nc3 Bb7 13.0–0 dc4 14.Qc4 Rd8 15.d3=) 10...Ne4 11.Bd3 Bf6 12.0–0 Nd7 13.Nc3 dc4 14.Qc4 Nd6 15.Qb3+=; A2) 9...Bd6 10.Be2 (10.Bd3 Nbd7 11.Nc3 Ne5 12.Ne5 Be5 13.Qa3 Bd6 14.0–0 e5 15.Qa4=) 10...Bc7 11.Qc3 Nbd7 12.0–0 e5 13.cd5 e4 14.Ne1 Be5 15.Qc2=; A3) 9...h6 10.Bd3 (10.Be2 dc4 11.Qc4 a6 12.b6 Bd7 13.Nc3 Nc6 14.0–0 Bd6 15.Ne4+=) 10...dc4 11.Bc4 b6 12.ab6 Qb6 13.d3 Bb7 14.Nbd2 Kh7 15.0–0+=; A4) 9...a6 10.d4 ab5 11.Qb5 Bd7 12.Qb7 Nc6 13.Qb6 Qc8 14.cd5 Nd5 15.Qb3+=; B) 9.Bd3 B1) 9...a6 10.Nc3 (10.0–0 b6 11.Nc3 dc4 12.Qc4 Bb7 13.Be2 ab5 14.ab5 Ra1 15.Ba1=; 10.Ne5 Nbd7 11.0–0 Ne5 12.Be5 Ng4 13.Bb2 Bd6 14.f4 Qh4 15.h3=) 10...ab5 11.ab5 Ra1 12.Ba1 dc4 13.Qc4 b6 14.0–0 Bb7 15.Be2=; B2) 9...dc4 10.Bc4 (10.Qc4 a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 b6 14.Bf6 Bf6 15.Be4=) 10...b6 11.0–0 a6 12.d4 ab5 13.ab5 Ra1 14.Ba1 Bb7 15.Nbd2=; B3) 9...Nbd7 10.a5 (10.0–0 b6 11.cd5 ed5 12.Be2 Re8 13.d3 Bd6 14.Nc3 Bb7 15.Rfc1=; 10.Na3 Bd6 11.0–0 e5 12.Bf5 e4 13.Ne1 Qc7 14.Kh1 Ne5 15.Bc8+=) 10...Bd6 11.Nc3 Ne5 12.Ne5 Be5 13.Qa3 Bd6 14.0–0 e5 15.Qa4=; B4) 9...b6 10.0–0 Bb7 11.Be2 dc4 12.Qc4 Nbd7 13.Rd1 a6 14.d4 Bd5 15.Qc2=; C) 9.d4 Nbd7 10.Bd3 (10.a5 Qc7 11.cd5 ed5 12.Qc2 c4 13.Be2 Re8 14.0–0 Bb4 15.Bc3=; 10.Nbd2 Bd6 11.Bd3 cd4 12.ed4 b6 13.0–0 Bb7 14.Qd1 a6 15.Qe2=; 10.Be2 Qc7 11.Ba3 Bd6 12.0–0 Re8 13.Nc3 cd4 14.Bd6 Qd6 15.ed4=) 10...Qc7 11.0–0 cd4 12.ed4 dc4 13.Bc4 Nb6 14.Rc1 Qf4 15.Qe3=; D) 9.Be2 D1) 9...b6 10.0–0 (10.Nc3 a6 11.0–0 Bb7 12.ba6 Na6 13.cd5 ed5 14.d4 c4 15.Qc2=; 10.d3 a6 11.0–0 Bb7 12.Nbd2 Nbd7 13.Rfb1 ab5 14.ab5 Qc7 15.Qc2=; 10.Na3 Bb7 11.0–0 Nbd7 12.d3 Bd6 13.Qc2 Re8 14.Rfc1 Qe7 15.d4=) 10...a6 11.Nc3 dc4 12.Qc4 Bb7 13.d4 Bd5 14.Nd5 ed5 15.Qc2=; D2) 9...dc4 10.Qc4 (10.Bc4 b6 11.0–0 Bb7 12.Ne5 Bd6 13.f4 a6 14.a5 ab5 15.Qb5=) 10...Nbd7 11.0–0 b6 12.d4 Bb7 13.dc5 Bd5 14.Qf4 Nc5 15.Nc3=; D3) 9...Nbd7 10.Qc2 (10.a5 a6 11.b6 dc4 12.Qc4 Bd6 13.Nc3 e5 14.0–0 Qe7 15.d3+=; 10.0–0 a6 11.d3 b6 12.ba6 Ra6 13.Nc3 Bb7 14.Nb5 Qb8 15.Rfb1=; 10.d3 dc4 11.Qc4 Bd6 12.a5 Re8 13.0–0 Bc7 14.Bc3 Nd5 15.Nbd2+=) 10...dc4 11.0–0 Bd6 12.Na3 Nb6 13.a5 c3 14.dc3 Nbd7 15.Nc4+=; D4) 9...a6 10.0–0 (10.Na3 b6 11.0–0 Bb7 12.Rfb1 ab5 13.ab5 Nbd7 14.d4 cd4 15.Bd4=; 10.d4 cd4 11.Bd4 ab5 12.cb5 Qd6 13.0–0 Nbd7 14.Qb2 b6 15.Rc1=; 10.d3 b6 11.0–0 Bb7 12.Nbd2 Nbd7 13.Rfb1 ab5 14.ab5 Qc7 15.cd5=) 10...b6 11.Nc3 dc4 12.Qc4 Bb7 13.d4 Bd5 14.Nd5 ed5 15.Qc2=.

8.Qb3 Re8 A) 9.d4 A1) 9...a6 10.dc5 (10.Bd3 cd4 11.Bd4 dc4 12.Qc4 Bd6 13.Qc3 Nd5 14.Qc2 f5 15.0–0=) 10...Bc5 11.Bd3 dc4 12.Qc4 Bd6 13.Ng5 Qe7 14.Nh7 Nd5 15.Qg4+/–; A2) 9...cd4 10.Nd4 (10.Bd4 a6 11.cd5 Nd5 12.Nc3 Bb4 13.Bc4 Bc3 14.Bc3 Nc3 15.Qc3=) 10...a6 11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 e5 14.Nf3 e4 15.Nd4=; B) 9.Nc3 Bc8 10.Bd3 (10.a5 a6 11.Ne5 ab5 12.Qb5 Nbd7 13.f4 Bd6 14.Nd7 Bd7 15.Qb6+=; 10.Be2 Qd6 11.0–0 d4 12.Nd1 e5 13.d3 a5 14.ba6 Ra6 15.Rb1+=) 10...Nbd7 11.a5 d4 12.Ne4 e5 13.Nf6 Bf6 14.Be4 a6 15.b6+=.

6.c4 a6

7.a4 Bd6 8.Bd3 0–0 9.Na3 ab5 10.Nb5 Bb5 11.ab5 Nbd7=.

7.a4 Bd6 8.Be2 0–0 9.0–0 Bc8 (9...ab5?! 10.ab5 Ra1 11.Ba1 dc4 12.Na3 Nd5 13.Bc4 Nb6=) 10.Qc2 (10.d4 ab5 11.ab5 Ra1 12.Ba1 dc4 13.dc5 Bc5 14.Qc2 b6+=) 10...Nbd7 (10...ab5 11.ab5 Ra1 12.Ba1 Nbd7=) 11.h3?! (11.Na3 b6 12.d4 Bb7 13.ba6 Ba6 14.Nb5 Bb5 15.ab5+=) 11...Re8 (11...ab5 12.cd5 Nd5 13.Bb5=) 12.Re1!? (12.Na3 b6 13.d4=) 12...ab5 13.ab5 (13.cd5 ed5 14.Bb5 Re7 15.Bd7 Rd7=) 13...Ra1 14.Ba1 e5 (14...Qc7 15.d4 cd4 16.Bd4 e5 17.Bb2 Nb6=+) 15.cd5 (15.d3 e4 16.de4 de4 17.Nh2 Qc7 18.Ng4 Ng4 19.Bg4=) 15...Nd5 (15...e4 16.Nh2 Nd5 17.d4 ed3 18.Qd3 N7f6=+) 16.Nc3 N7f6 (16...Nb4 17.Qb1 Nf6 18.Bc4 Be6=) 17.Ng5 Nc3 18.Bc3 h6 19.Ne4 (19.Nf3? e4 20.Nh2 Nd5 21.f4 Qh4–/+) 19...Ne4 20.Qe4 Qg5 (20...f5 21.Qd5 Kh7 22.Bh5 Re7 23.e4 g6=) 21.f4 Qg3 (21...Bf5 22.fg5 Be4 23.gh6 gh6 24.Bc4 Kg7+=) 22.Rf1 Qh4? (22...Bh3 23.f5 Rd8 24.Kh1+–) 23.Bd3 g6 24.Qd5?! (24.Bc4 Be6 25.Be6 Re6 26.Qb7 ef4 27.Qc8 Bf8 28.Rf4+–) 24...Bb8 (24...Qe7) 25.fe5 Be6 26.Qb7 Rf8? (26...Qg5 27.Qe4 Bh3 28.Qc6 Rc8 29.Qb7+–) 27.Rf6 Qg5 28.Kh2?? (28.Qe7 Qg3 (28...Bh3 29.Rg6!) 29.Rg6!+–) 28...Qh4 29.Bg6?? (29.Re6!!) 29…Qf6 0–1. Sternik,Ryszard – Pizzato,C, Toowoomba, 1992.

7.a4 Be7 8.Be2 0–0 9.d3 h6 (9...ab5 10.ab5 Ra1 11.Ba1=) 10.Nbd2 (10.0–0 b6=) 10...Bc8 (10...dc4 11.dc4 Qa5 12.Qc2+=) 11.Ne5 Nbd7 12.f4 (12.0–0 Ne5 13.Be5 Nd7=) 12...Ne5 (12...dc4 13.Ndc4 Nd5 14.0–0=) 13.Be5 (13.fe5 Nd7 14.0–0 Bg5=) 13...b6 (13...Nd7 14.Bc3=) 14.0–0 Bb7 (14...Nd7 15.Bc3=) 15.Bf3 ab5 (15...Nd7 16.Bb2=) 16.ab5+= Qd7 17.Qc2 Rfd8 18.Bb2 (18.Rfd1 Ra1 19.Ra1 dc4 20.dc4 Ng4 21.Bg4 Qd2 22.Qd2 Rd2+=) 18...dc4 19.Bb7? (better is 19.Ra8 Ba8 20.Ba8=+) 19...cd3–+ (19...Qb7?! 20.Nc4 Ra1 21.Ra1=) 20.Qc3 (20.Qc4 Ra1 21.Ba1 Qb7–+) 20...Qb7 21.Ra8 Qa8 (21...Ra8?! 22.Qd3 Rd8 23.Qc2–/+) 22.Ra1 Qb7 23.g4 (23.e4–+) 23...Bf8 24.h3 Ne4 25.Ne4 Qe4 26.Kf2 d2 27.Rd1 Rd3 28.Qe5 Qa4 29.Ke2 Qb5 30.Kf2 Qa4 31.Ke2 Qc4 32.Kf2 (32.Kf3–+) 32...f6 33.Qc7 (33.Qh5 Qe4 34.g5 Qe3 35.Kg2 Qg3 36.Kh1 Qe1 37.Kg2 Rg3 38.Kh2 Qf2 39.Kh1 Qg2) 33...Qb3 34.Ke2 Qb5 (35.Qc6 Qc6 (35...Qb2 36.Qe6 Kh8 37.Kd3+=) 36.Kd3 c4 37.Kd2 Qe4–+; 34...Re3 35.Kf2 Rf3 36.Kg2 Rg3 37.Kh2 Rh3 38.Kg1 Qd1 39.Kg2 Qf3 40.Kg1 d1Q#) 0–1. Rush,Bradley – Hodge,David Jonathan, IECG, 1996.

7.Qa4 dc4 8.Na3 Nd5 9.Qc4 ab5 10.Nb5 Ra5 =.

7.Qa4 dc4 8.Bc4 Qb6 9.Na3= Be7 10.0–0 0–0 11.Bd3 (11.Ne5 Bb5 12.Nb5 ab5 13.Qb5 Qb5 14.Bb5 Rd8=) 11...Nd5 (11...Ra7 12.Rfb1=) 12.Qg4 (12.Ne5 Rd8=) 12...Bf6 (12...g6 13.Ne5 Bf6 14.Qa4=) 13.Qe4+= Threatening mate: Qxh7 13...g6 14.Bf6 Nf6 15.Nc4 (15.Qh4 Qd6 16.Be2 ab5 17.Nb5 Qe7+=) 15...Qd8 (15...Qb5!? 16.Qh4 Kg7=) 16.Qb7+= Nc6?? (better is 16...Bb5 17.Qa8 Qd3+=) 17.bc6+– Rb8 (17...Bc6 18.Qc6 Qd3 19.Nfe5+– (19.Qc5?! Rac8 20.Qe5 Ng4+–)) 18.Qa6 Bc8 (18...Ra8 19.Qb6 Bc6+–) 19.Qa7 (19.Qa7 Rb5 20.a4+–) 1–0. b4_player – opponent,, 2007.

7.Qa4 dc4 8.Bc4 Nd5 9.Qb3 =.

7.Qa4 dc4 8.Bc4 Nd5 9.Be2 Nb6 10.Qf4 ab5 11.Ng5 f6 12.Bh5 Ke7 13.Nf7 Qc8 14.Bf6 1–0. marus2 – sulfs, internet, 2001.

7.Nc3 Be7 8.a4 (8.ba6 Na6 A) 9.d4 cd4 (9...Qa5 10.Ne5 Ne4 11.Rc1 Bh4 12.Qh5+/–; 9...dc4 10.Bc4 cd4 11.Qd4 0–0 12.Ne5=; 9...Qb6 10.Qb3 Qa5 11.Ne5 Bc6 12.Be2=; 9...0–0 10.cd5 ed5 11.dc5 Qa5 12.Ba6=; 9...Rc8 10.cd5 ed5 11.dc5 Qa5 12.Ne5=) 10.Nd4 Nc7 11.Qb3 0–0 12.Be2=; B) 9.cd5 ed5 10.Be2 0–0 11.0–0 Bf5 12.d3+=; C) 9.Ne5 0–0 10.Be2 d4 11.Nb5 Bb5 12.cb5=; D) 9.Qb3 Bc6 10.Ne5 0–0 11.cd5 ed5 12.Nc6=; 8.Be2 ab5 A) 9.cb5 Qb6 (9...Bd6 10.d4 c4 11.0–0 Qa5 12.a4=; 9...Qa5 10.0–0 Bd6 11.d4 c4 12.a4=; 9...0–0 10.0–0 Bd6 11.d4 c4 12.a4=) 10.0–0 0–0 11.Qc2 Rc8 12.Ne5=; B) 9.Nb5 Bb5 (9...0–0 10.0–0 dc4 11.Bc4 Nc6 12.Rb1=; 9...Qb6 10.Rb1 0–0 11.Be5 Qd8 12.Qc2=; 9...Bc6 10.cd5 ed5 11.0–0 0–0 12.Qc2=) 10.cb5 c4 11.0–0 Qa5 12.a4=) 8...ab5 (8...0–0 A) 9.Bd3 Bd6 (9...b6 10.0–0 ab5 11.ab5 Ra1 12.Qa1=; 9...ab5 10.ab5 Ra1 11.Qa1 Bc8 12.0–0=; 9...Qb6 10.0–0 dc4 11.Bc4 ab5 12.ab5+=; 9...Qa5 10.0–0 Rd8 11.Qc2 h6 12.e4=; 9...dc4 10.Bc4 ab5 11.ab5 Ra5 12.0–0+=; 9...Re8 10.0–0 ab5 11.ab5 Ra1 12.Qa1=; 9...Qc7 10.0–0 Qd6 11.Qc2 Rd8 12.cd5=) 10.0–0 ab5 11.Nb5 Be7 12.cd5=; B) 9.Be2 Bc8 (9...b6 10.0–0 ab5 11.ab5 Ra1 12.Qa1+=; 9...Qa5 10.0–0 Rd8 11.Qc2 Bd6 12.Ng5=; 9...dc4 10.Bc4 ab5 11.ab5 Ra1 12.Qa1=; 9...ab5 10.ab5 Ra1 11.Qa1 Bc8 12.Qa7=; 9...Qb6 10.0–0 ab5 11.ab5 Ra1 12.Qa1=; 9...Bd6 10.d4 dc4 11.0–0 Qc7 12.Bc4=) 10.d4 dc4 11.dc5 Qc7 12.Bc4=) 9.ab5 White gets in control. 9...Ra1 10.Qa1 0–0 11.Qa7 Bd6 (11...Qc7 12.Na4 Bd6 13.Bf6 gf6 14.Nc3 dc4 15.Bc4+=; 11...Qc8 12.Na4+=) 12.Na4 (12.Qb7+=) 12...Qc7 13.Nb6 Ne4 (13...dc4!? 14.Bf6 gf6 15.Bc4 Bc6+=) 14.cd5+/– c4 (14...Rd8 15.d3 Nf6 16.de6 Be6 17.Bf6 gf6 18.Nc4+/–) 15.Nc4+– Bb4 (15...Bc5 16.b6 Qc8 17.de6 Be6+–) 16.Be5 Bd2?? (16...Qc8 17.Qd4 Nf6 18.de6 fe6+–) 17.Nfd2 Qc8 (17...Qd8 18.de6 Nd2 19.ef7 Kf7 20.Nd2+–) 18.Ne4 ed5 19.Ned6 Qc7 (19...Qd8 20.Nb6 Qc7 21.Ndc4+– (21.Nd5?! Qc1 22.Ke2 Qc2 23.Kf3 Qd1 24.Be2 Qd5 25.Ne4 Qe5+=)) 20.Nf7! Qd8 (20...Rf7 21.Bc7) 21.Nd8 (21.Nd8 Rd8 22.Na5+–) 1–0. pierre – shigeta, internet, 2008.

7.a4 ab5

8.ab5 Ra1

9.Ba1 Qb6 10.Qc2 Be7 11.Be5 0–0 12.Bd3 dc4 13.Bc4 Qa5 14.Nc3 Qa1.

9.Ba1 dc4 10.Bc4 Bd6 11.Be5 Be5 12.Ne5 Bc8 13.Nc3 Nbd7 14.Nd7 Qd7.

9.Ba1 Bc8 10.Bf6 gf6 11.cd5 ed5 12.Nc3 Be6 13.Qc2 Nd7 14.Be2 Bd6.

9.Ba1 Bd6 10.Qb3 0–0 11.Bf6 Qf6 12.cd5 ed5 13.Qd5 Qf5 14.Nc3 Qd5.

9.Ba1 Ne4 10.Nc3 Nc3 11.Bc3 (11.dc3?! Qa5 12.Nd2 Be7 13.cd5 ed5+=) 11...f6 12.Bd3 Bd6 13.Qb3 d4 14.ed4 cd4 15.Bd4 0–0 16.c5 Be5 17.Be3 Qa5 (17...Be8 18.Ne5 fe5 19.0–0+–) 18.0–0 Bc7 19.Nd4 Re8 20.Bc4 Kh8 21.Ne6 Be6 22.Be6 Be5 (22...Re7+–) 23.d4 Bc7 24.b6 Bd8 25.Qd5 Qb5 (25...Bb6 26.cb6 Qb6+–) 26.Bf7 Qc6 (26...Bb6 27.Qb7 Rf8+–) 27.Qc6 Nc6 28.Be8 Ne7 29.Ra1 Kg8 30.Ra8 Kf8 31.Rd8 (31.Rd8 g5 32.Bc6 Kg7 33.Bb7 Ng8 34.Bd5 Ne7 35.b7 Nc6 36.Bc6 Kf7 37.b8Q Kg7 38.Rg8 Kh6 39.Qg3 Kh5 40.Qh3) 1–0. Fritz11 – jumbo, casual, 2013.

9.Ba1 Be7 10.d3 (10.Be5 0–0 11.Nc3 Be8 12.cd5 ed5 13.Be2 Nbd7 14.Bg3 Nb6) 10...0–0 11.Be2 Qa5 (11...Qc7 12.Nbd2 Rd8 13.Qb3 Be8 14.b6 Qc6) 12.Nbd2 dc4 (12...Bc8 13.0–0 Nbd7 14.Qc2 Qc7) 13.dc4 Ne4 14.0–0 Nc3 15.Bc3 Qc3 16.Ne4 (16.Qa1 Qa1 17.Ra1 Bc8+=) 16...Qa5 17.Qa1 Qb6 18.Rd1 f5 19.Ng3 Bf6 20.Qa3 Be8 21.Nd2 g6 22.Nb3 Nd7 23.Bf3 Ne5 (23...Be7!?+=) 24.Qc5+/– Qc5 25.Nc5 Nf3 26.gf3 Rf7 27.Ne6 Re7 28.Nf4 Bg5 (28...Rd7 29.Nd5 Kf8 30.e4+– (30.Nf6 Rd1 31.Kg2 Bf7+=)) 29.Nd5 Rd7 30.f4 Bd8 (30...Be7 31.f3+–) 31.Ne2 (31.e4 Kf8+–) 31...Kf8 32.Nd4 Bf7 33.f3 Bd5 34.cd5 Ke7 35.e4 Bb6 36.Kf1 Rc7 37.Nf5! Kf6 (37...gf5 38.d6 Double attack (38.d6 Passed pawn)) 38.Nd6 Rc2 39.e5 Ke7 40.f5 (40.h3 Rf2 41.Ke1 Kd7+–) 40...Bc7 41.f6 Kd7 (41...Kf8 42.Re1 Bd6 43.ed6 Rc8+–) 42.e6 Kd6 43.e7 Bb6 44.e8Q Rf2 45.Ke1 Rf3 46.Qe7 1–0. Toll,A (2070) – Vinoya,Mario, Kaunas LTU, 2011.

6.c4 Qb6

7.a4 a6 8.Nc3 +/–.

7.a4 Be7 8.a5 Qc7 9.Be5 Qd8 10.Nc3 0–0 11.Be2 Ng4 12.cd5 Ne5 13.Ne5 ed5 14.Nd5 Be6 15.Ne7 Qe7 16.0–0 Qg5 17.Nf3 Qg6 18.Kh1 Nd7 19.d4 c4 20.Rc1 Rac8 21.d5 Bf5 22.Nh4 Qg5 23.Nf5 Qf5 24.Bg4 Qd3 25.Bd7 Rc7 1–0. CD Meyer – Seedorff, 1988.

7.a4 Be7 8.a5 Qd6?? 9.Be5+– 1–0. Hoehnemann,HJ – Tobies,R, Bad Bevensen, 1998.

7.a4 Be7 8.a5 Qd8 =.

7.a4 Be7 8.Bd3!? +/–.

7.Qb3 a6 8.Bf6 gf6 9.cd5 ab5 +=.

6.c4 dc4

7.Nc3 Qb6 8.Bc4 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 Qc7 A) 12.Qa7 Be7 (12...h6 13.0–0 Be7 14.e4 0–0 15.Ra1 Rd8 16.e5 Nh7 17.Ne4 Ng5 18.Nfg5+–) 13.Na4 Bd6 14.Ba3 0–0 15.Bc5 Ne4 16.d4 Rc8 17.b6 Qd8 18.Bd3=; B) 12.Ne2 Be7 (12...Rg8 13.0–0 Qb6 14.Bf6 gf6 15.Qf6 Rg6 16.Qh8 Rg7 17.Nf4 Ke7 18.Ra1+–) 13.Be5 Qc8 14.0–0 0–0 15.Rc1 Qe8 16.Qb2 b6 17.Ra1 Qc8 18.Ra7+/–.

7.Nc3 Qb6 8.Bc4 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 Bc8 A) 12.e4 Nbd7 (12...Qd8 13.0–0 Nbd7 14.Rd1 Qc7 15.e5 Ne5 16.Ne5 Qe5 17.Nd5 Qb8 18.Bf6+/– 1.13) 13.e5 Ng4 14.h3 Nh6 15.Ne4 Be7 16.Bc3 Qd8 17.0–0 b6 18.Nd6+=; B) 12.0–0 Be7 (12...Bd6 13.e4 Bf8 14.Qa8 Nfd7 15.Ne2 Qd6 16.Qa1 f6 17.e5 fe5 18.Ng3+/–) 13.Rc1 Nbd7 14.Na4 Qa5 15.d4 cd4 16.Bd4 0–0 17.Nb2 Qb4 18.Bd3+/–.

7.Nc3 Qb6 8.Bc4 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 Bd6 12.e4 (12.Na4 Qd8 (12...Qa7 13.0–0 0–0 14.Bf6 gf6 15.Nc3 Qa1 16.Ra1 Bc8 17.Ne4 Be7 18.d3+/–) 13.Be5 Be7 14.0–0 0–0 15.Rc1 Be8 16.d4 cd4 17.Bd4 Nbd7 18.Bd3+/–; 12.0–0 Be7 (12...0–0 13.Na4 Qa5 14.Bf6 gf6 15.Nc3 Qa1 16.Ra1 Bc8 17.Ne4 Be7 18.Ra7+/–) 13.Qa8 Qc7 14.b6 Qc8 15.Ra1 0–0 16.d3 Bc6 17.Nb5 Bf3 18.gf3=) 12...0–0? (better is 12...Be7+= 13.0–0 0–0 14.e5 Ne8 15.Rc1 Nc7 16.Na4 Qa5 17.Bc3 Qa8 18.b6+=; 12...e5 13.Na4 Qd8 14.Be5 Ne4 15.0–0 f6 16.Bd6 Nd6 17.Re1 Kf8 18.Nc5+–) 13.e5+– Ng4? (13...Ne8 14.ed6 Nd6+–) 14.Na4 Qa5 15.Bc3 Qc7 16.ed6 Qd6 17.Bg7 Re8 18.Bc3 e5 (18...Qf4 19.d3 e5 20.Nc5+–) 19.h3 e4 20.Ng5 Ne5 21.Be5 Qe5 22.Qe5 Re5 23.Nf7 Re7 24.Nd6 Be6 25.Be6 Re6 26.Nb7 c4 27.Nbc5 Re5 (27...Rg6 28.0–0+–) 28.Ke2 Kf7 (28...Rd5 29.Rc1+–) 29.Rc1 Ke7 (29...c3 30.dc3 Ke7 31.b6+–) 30.Rc4 Kd6 31.Re4 Rc5 32.Nc5 Kc5 33.Re7 h6 34.Rb7 1–0. pcmvr (2765) – prasanta (2320), net–, 2014.

7.Nc3 Qb6 8.Bc4 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 Be7 A) 12.Na4 Qd8 (12...Qa5 13.Bc3 Qc7 14.Be5 Qd8 15.0–0 0–0 16.Rc1 Qa5 17.Nc3 Qd8 18.Qa7+/– 1.06) 13.0–0 0–0 14.d4 Qe8 15.Nc5 Bb5 16.Bb5 Qb5 17.Rb1 b6 18.Bc3+=; B) 12.0–0 0–0 (12...Qd8 13.Qa7 Qc7 14.Na4 Bd6 15.Rc1 Ng4 16.h3 Nf6 17.Bd3 b6 18.Qb6+– 2.00) 13.Na4 Qa5 14.Bc3 Qc7 15.Rc1 Rc8 16.Be5 Qd8 17.d4 cd4 18.Bd4+=.

7.Nc3 Qb6 8.Bc4 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 h6 A) 12.e4 Be7 (12...Qd8 13.0–0 Be7 14.Qa7 Qc7 15.Re1 0–0 16.e5 Nh7 17.Ra1 Ng5 18.Ng5+/–) 13.0–0 0–0 14.e5 Nh7 15.Ba3 Rc8 16.Ne4 Kh8 17.Qb2 Rc7 18.Ra1+/–; B) 12.0–0 Be7 (12...Bd6 13.Na4 Qd8 14.Be5 Be7 15.d4 cd4 16.Qd4 0–0 17.Nb6 Be8 18.Qd8+– 1.59) 13.Qa8 Bd6 14.e4 Ng4 15.h3 Ne5 16.Ne5 Be5 17.Na4 Qd6 18.Be5+/–.

6.c4 Be7

7.a4 0–0 8.d4 a6 9.Nbd2 ab5 10.ab5 Ra1 11.Qa1 cd4 12.Bd4 dc4 13.Bc4 Nd5? (better is 13...Bc8+/–) 14.Bg7+– Bf6 15.Bf6 Qf6 16.Ne5 Ne3?? (16...Be8 17.Ne4 Qg7+–) 17.fe3 Qh4 (17...Bc8 18.Ndf3+–) 18.g3 Qf6 (18...Qg5 19.Qd4 Rd8 20.Ne4+–) 19.Ne4 Qg7 20.0–0 f5 (20...f6 21.Nd7 Nd7 22.Be6 Kh8 23.Bd7+–) 21.Nc5 Be8 (21...Bc8 22.Be6 Be6 23.Ne6 Qh6 24.Nf8 Qe3 25.Kg2 Kf8 26.Rf5 Ke8+–) 22.Ne6 (22.Ne6 Qf6 23.Nd4 Bf7 24.Nf7 Rf7 25.Rf5 Qg7 26.Rf7 h6 27.Rg7 Kg7 28.Nf5 Kg6 29.g4 Nc6 30.Qg7) 1–0. Fritz11 – jumbo, casual, 2013.

7.a4 a6 8.Nc3 ab5 9.cb5 (9.ab5!? Ra1 10.Qa1+=) 9...0–0= 10.Be2 Qb6 (10...Bc8 11.Qc2=) 11.Ba3 (11.Qc2 Bc8=) 11...Bd6 (11...Bc8 12.0–0=) 12.Qc2 (12.0–0 Bc8=) 12...Rc8 (12...e5 13.e4 d4 14.Nd1+=) 13.0–0 (13.e4 de4 14.Ne4 Ne4 15.Qe4 f5+=) 13...Be8 14.Rfc1 (14.e4 Nbd7=) 14...Nbd7+= 15.Bb2 (better is 15.h3+=) 15...Ne5 Black prepares the advance c4 (better is 15...c4+=) 16.Ne5+/– Be5 17.f4 (17.Nd5!? Bh2 18.Kh2 Nd5 19.Kg1+/–) 17...Bd6= 18.Kh1 (18.Bf3 Qd8=) 18...c4 19.Bf3 Nd7 20.Ne2 (20.a5 Ra5 21.Nd5 ed5–/+) 20...Nc5 21.Bd4 Qd8 22.Bc5 (22.Rcb1 Nb3 23.Rb3 cb3 24.Qb3 Qc7–/+) 22...Bc5 23.Qc3 (23.e4 Qd6+=) 23...Qd6–/+ 24.Rcb1 b6 (24...f6 25.f5 ef5 26.a5–/+) 25.Nd4 (25.e4 f6–/+) 25...Ra7 (25...Ra5 26.g3–/+) 26.Bd1 (26.a5 ba5 27.Ra5 Rca8 28.Ra7 Ra7–/+ (28...Ba7 29.Qa5 Qd7 30.b6+–)) 26...Rca8 27.Nf3 f6 28.Bc2 Ra5 29.d4 cd3!–+ 30.Qd3 Bg6 31.Qb3 Bc2 32.Qc2 Be3 33.g3 R5a7 34.Re1 Bc5 35.Qd1 Rc7 36.Nd4 Bd4 37.Qd4 Rc4 38.Qd1 Rac8 39.Qg4 Re8 40.Qh5 Re7 41.Rad1? d4 42.Ra1 g6 43.Qf3 Rc3 Black plans d3 44.Qe4 d3 45.Re3?? d2 46.Rc3 d1Q 47.Rd1 Qd1 (47...Qd1 48.Kg2 Qd2 49.Kh3 Qc3 50.Qa8 Kg7–+) 0–1. Krueger,Bernhard – Meijere,Agnese (2150), Baunatal op 5th, 1999.

7.d4 0–0 8.Bd3 dc4 9.Bc4 cd4 (9...a6 10.a4=) 10.Nd4 (10.Bd4 a6=) 10...Bb4+= 11.Nc3 (11.Nd2 Ne4 12.N4f3 Nd6+=) 11...Ne4 (better is 11...Bc3 12.Bc3 Qc7–+) 12.Rc1= e5 (better is 12...Qa5 13.Qd3 Nc5+=) 13.Nde2 (13.Nf3 Qa5 14.Qb3 Nc5–/+) 13...a6 (13...Qh4 14.g3 Ng3 15.Bf7 Rf7 16.Ng3 Bb5 17.a3 Bc3 18.Rc3–+) 14.a4 (14.0–0 Nd6 15.Qb3 Nc4 16.Qc4 Bc3 17.Qc3 Re8=) 14...Qg5 (14...ab5!? 15.Bb5 Bb5 16.ab5 Qd1 17.Rd1 Ra2–/+) 15.0–0+= White gets in control 15...Bc3 (15...Bh3 16.Ng3 Ng3 17.hg3 ab5 18.ab5+=) 16.Bc3 (better is 16.Nc3 Nc3 17.Bc3 ab5 18.ab5+=) 16...Rd8? (better is 16...ab5 17.ab5 Bg4=) 17.Qd5+/– Nd6 18.f4 (18.Qd6!? Bh3 19.Qd8 Qd8 20.gh3 ab5 21.Bb5+–) 18...Qg6 19.Be5 Be6 20.Qd4 Bc4 21.Rc4 Nc6 (21...ab5 22.ab5 Nc6 23.bc6 Nc4 24.cb7 Rab8 25.Qc4 Rb7+–) 22.bc6 Nf5?? (22...Nc4 23.cb7 Rab8 24.Qc4 Rb7+–) 23.Qb6 (23.Qe4 bc6 24.Rc6 f6+–) 23...Nh4 24.g3 Qe6 25.Rc2 Qf5 26.c7 Rdc8 27.Rd1 Nf3 28.Kg2 Ne1 29.Kf1 h6 30.Nd4 Qe4 31.Re1 (31.Re1 f6 32.Qe6 Kh7 33.Qf5 Qf5 34.Nf5 fe5 35.Ne7 ef4 36.gf4+–) 1–0. Hasler,Ulrich – Verges,Joaquim, corr Switzerland, 1985.

7.Be2 0–0 8.0–0 a6 9.a4 Ne4 10.d4 (10.d3 Nf6+=) 10...dc4 (10...Bf6 11.Nc3 Nc3 12.Bc3+=) 11.Bc4 (11.Qc2 Nf6 12.Bc4 cd4 13.Bd4 ab5 14.ab5 Ra1 15.Ba1 Qc7+=) 11...Nd6 (11...ab5 12.ab5 Ra1 13.Ba1=) 12.Qb3 (12.Be2 ab5 13.dc5 Nc4+=) 12...Nc4 13.Qc4 ab5 14.ab5 Ra1 15.Ba1 Qa5 16.Nc3 Rc8 17.d5 (17.dc5 Bc5 18.Qg4 f5=) 17...Bf6 18.de6 (18.Rb1!?=) 18...Be6+= (worse is 18...fe6 19.Rb1+=) 19.Qa4?? (better is 19.Qd3+=) 19...Bc3–+ 20.Qa5 Ba5 21.Be5 Nd7 22.Bd6 (22.Rc1 Ne5 23.Ne5 c4–+) 22...c4 (22...Bc4!? 23.Rb1–+) 23.Ra1 Bb6 24.Ne1 c3 25.Rc1 h6 26.Kf1 Bc4 27.Kg1 Bb5 28.Nc2 Bc5 29.Bf4 Bd3 30.Ne1 Bc4 31.Rc3 Bb4 32.Rc1 Be1 33.Re1 b5 34.Bd6 Nc5 35.f4 Nd3 36.Rb1 b4! 37.Bb4 Rb8 (37...Rb8 38.g4 Rb4 39.Rb4 Nb4–+) 0–1. Huovinen,Jouni – Koskinen,Mika, FIN–chT, 2000.

7.Be2 a6 8.a4 (8.ba6 Na6 9.cd5 ed5=+) 8...0–0 (8...ab5 9.cb5 0–0 10.0–0=+) 9.0–0= Ne4 (9...b6 10.Nc3=) 10.d3+= Nd6 11.Qb3 (11.Nbd2 dc4 12.dc4 b6+=) 11...dc4 (11...b6 12.Ne5=) 12.dc4+= Be8 (12...ab5 13.ab5 Ra1 14.Ba1+=) 13.Rd1 Qc8 (13...b6 14.Ne5+=) 14.Be5+/– Ne4 15.Qc2 f5 16.Nc3 Bg6 17.Ne4 (17.Qb2 ab5 18.cb5 Nf6+/–) 17...fe4 18.Nd2 Nd7 19.Bg3 Nf6 20.Rdb1 (20.a5 Qe8+/–) 20...Rd8 (20...Bf5 21.a5+=) 21.a5+/– Rd7 22.h3 (22.Rd1 Qe8+/–) 22...Qd8 (22...Qe8 23.Be5+=) 23.Ra2 (23.Nb3 Qe8+=) 23...Qf8+= 24.Rab2 Rad8 25.Nf1 Bd6 26.ba6 ba6 27.Rb6 (27.Bd6 Rd6 28.Rb7 Bf5+=) 27...Bg3 28.Ng3 Rd2 29.Qc3 Nh5 30.Nh5 (better is 30.R1b2 Rb2 31.Qb2 Ng3 32.fg3+/–) 30...Bh5–/+ 31.Bf1 Qf2 32.Kh1?? (better is 32.Kh2 Bd1 33.Rb7–/+) 32…Bf3! (33.Qd2 Rd2–+) 0–1. Mitloehner,Norbert (1925) – Maier,Gerald (2030), Graz–ch, 1994.

6.Be5 c4

7.a4 Be7 8.d3 cd3 9.Bd3 0–0 10.0–0 a6 11.Nbd2 ab5 (better is 11...Bc8!?+=) 12.ab5+/– Ra1 13.Qa1 Qb6 14.Qd4 Bc5 (better is 14...Qd4!? 15.ed4 Ng4+/–) 15.Qh4+– Ne4?! (15...Rc8+–) 16.Ne4 de4 17.Qe4 f5 (17...g6 18.Qf4 f6 19.Bb8+–) 18.Qf4 Qd8 19.e4 fe4 (19...g5 20.Ng5 (20.Qg5?! Qg5 21.Ng5 Be7+–) 20...Be7 21.Nf3+–) 20.Qe4 g6 21.Qb7 Qb6 22.Qb6 Bb6 23.Ra1 g5 24.Ra8 g4 25.Ng5 Bf2 26.Kh1 h6 (26...Rc8+–) 27.Bh7# (27.Bb8?! hg5 28.c4 Bc5+/–) 1–0. COMP – NN, 2003.

7.Nc3 a6 8.ba6 Na6 9.Be2 Be7 10.d3 cd3 11.cd3 0–0 12.Rb1 Qc8 13.0–0 Nc5 14.Rc1 Bc6 15.d4 Ncd7 16.Bf4 Qd8 17.Ne5 Ne5 18.Be5 Nd7 19.Bf4 Qa5 20.Qd3 Nb6 21.Rc2 Nc4 22.Rfc1 Ba4 23.Na4+= Qa4 24.e4 b5 25.ed5 ed5 26.Bf3 Rad8 27.Bd1 Qa6 28.Bg4 Ba3 29.Rb1 Bd6 30.Bd6 Rd6 31.Re1 g6 32.Rce2 Rdd8 33.Bf3 Qa3 34.Qa3 Na3 35.Re5 Nc2 36.Rd1 Nb4 37.a3 Nc2 38.Bd5 Na3 39.Kf1 b4 40.Ke2 Nc2 41.Kd3 b3 42.Kc3+– 1–0. b4_player (1885) – MarvinPA (2060),, 2002.

6.Ne5 Bd6

7.Nd7 Nbd7 8.a4 Qe7 9.c4 0–0 10.Be2 a6 11.0–0 ab5 12.ab5 Nb6 13.Ra8 Ra8 14.Qc2 Qf8 15.cd5 Nbd5 16.e4 Nb4 17.Qb3 Ne4 18.Bf3 f5 (18...Ng5–/+) 19.Nc3?? (better is 19.Be4 fe4 20.Qe6 Kh8 21.Qe4=) 19...Nd2–+ 20.Qd1 (20.Qe6 Kh8 21.Rd1 Re8–+) 20...Bf4 21.g3 Bh6 (21...Nf1?! 22.gf4 Nh2 23.Kh2–/+) 22.Re1 (22.Bb7 Rd8–+ (22...Nf1?! 23.Ba8 Qa8 24.Qf1=+)) 22...Rd8 (better is 22...Nd3 23.Bb7 Nb2 24.Qe2–+) 23.Kg2? (23.Re6 Nd3 24.Bd5 Nb2 25.Re8 Rd5 26.Rf8 Kf8=+) 23...Qd6 (better is 23...Nd3 24.Bb7 Nb2–+) 24.Ne4?? (24.Be2–+) 24...fe4 25.Be4 (25.Be2 Qf8 26.Rh1 Nc4 27.Qd8 Ne3 28.fe3 Qd8–+) 25...Ne4 26.Qd6 Nd6 27.Re6 Nc4 28.Re7 (28.Bc3 Nd5 29.Ba1 Na3–+) 28...Nb2 29.Rb7 c4 30.Rc7 Rd3 (better is 30...Rb8 31.f4–+) 31.b6 Na6 32.b7 (32.Ra7 c3 33.f4 c2 34.Ra8 Kf7–+) 32...Rd8 (better is 32...Rb3!? 33.Rc6 c3 34.h3–+) 33.Rc8 Bg5 34.Rd8 (34.h3–+) 34...Bd8 35.h4 Nb8 36.Kf3 c3 37.Ke3 Na4 (better is 37...Ba5–+) 38.Kd3 Kf7 (38...Nc6 39.Ke2–+) 39.Kc2 (39.f4 Na6 40.Ke2 Bc7–+) 39...Ke7 (39...Nc6!? 40.b8Q Nb8 41.Kb1–+) 40.Kb3 Kd7 41.f4 Kc7 42.g4 Kb7 43.g5 Kc6 (better is 43...Nc6 44.g6 Nd4 45.Kc4–+) 44.f5 Kd5 45.g6 hg6 46.fg6 Bh4 47.Ka4 Nd7 48.Kb3–+ Kd4 49.Kc2 Ne5 50.Kb3 Ng6 51.Kc2 Ne5 52.Kd1 Kd3 53.Kc1 Bg5 54.Kb1 c2 55.Ka2 c1Q 56.Kb3 Qb1 57.Ka4 Kc4 58.Ka5 Qb5 0–1. OPA – finlandiaflies, Live Game Caissa's Web, 2004.

7.Be2 0–0 8.0–0 c4 9.a4 a6 10.Nd7 Nbd7 11.ba6 Ra6 12.Nc3 Nc5 13.d4 cd3 14.cd3 Ra8 15.Nb5 Be7 16.Bc3 Qd7 17.d4 Nce4 18.Be1 Rfc8 19.Bd3 Nd6 20.Rb1 Nfe8 21.Qb3 Rab8 22.Na7 Rc7 23.Bb5 Nb5 24.Nb5 Rc4 25.Bd2 Nd6 26.Ra1 Ne4 27.Be1 h6 28.f3 Nd6 29.Bd2 Nb5 30.ab5 Rbc8 31.b6 Rc2 32.Rfd1 Qd6 33.Be1 Bd8 34.Rab1 R8c6 35.Bg3 Qe7–/+ 36.Re1 R2c4 37.Qb5? Rb6–+ 38.Qb6 Bb6 39.Rb6 Rb4?? 40.Bd6+= Qd8 41.Rb4 Qd6 42.Rb7 Qa3 43.Rb8 Kh7 44.Rbb1 h5 45.Re2 Qd3 46.Rbb2 g5 47.Kf2 g4 48.Rb7 Kg6 49.Rb8 f5 50.Rb6 Kf6 51.fg4 hg4 52.Rb8 Kf7 53.Reb2 Kf6 54.Rc8 Qe4 55.Rd2 Kf7 56.Rd1 f4 57.ef4 Qf4 58.Kg1 Qe3 59.Kh1 g3 60.h3 Qe2 61.Rdc1 Qe3 62.R8c3 Qd4 63.Rg3 e5 64.Rf1 Ke6 65.Rg6 Ke7 66.Rb1 Qd3 67.Rb7 Kf8 68.Rc6 Qf1 69.Kh2 Qf4 70.Kg1 Qd4 71.Kh2 Qf4= 72.Kg1 Qe3?? 73.Kh1 1–0. Gilkarste – drexsau,, 2003.


6.a3 A) 6...a6 A1) 7.Nc3 e5 (7...Bd6 8.Be2 e5 9.ba6 ba6+=) 8.Rb1 Bd6 9.ba6 ba6+=; A2) 7.Be2 Bd6 (7...ab5 8.Nc3 c4 9.Nb5 Qa5=) 8.0–0 0–0 9.Nc3 e5+=; A3) 7.ba6 ba6 8.Nc3 e5 9.Rb1 Rb8+=; A4) 7.a4 Bd6 8.Be2 ab5 9.ab5 Ra1+=; B) 6...Be7 B1) 7.Be2 Qc7 (7...Bd6 8.c4 dc4 9.Bc4 Nb6=; 7...a6 8.Ra2 ab5 9.Bb5 0–0+=; 7...0–0 8.0–0 Bd6 9.d4 a6=) 8.0–0 0–0 9.Ra2 e5+=; B2) 7.Bd3 Bd6 (7...0–0 8.0–0 Qc7 9.Nc3 e5+=; 7...c4 8.Be2 Qb6 9.a4 a6+=; 7...Qc7 8.0–0 e5 9.Nh4 c4+=; 7...a6 8.ba6 ba6 9.c4 Rb8+=) 8.0–0 e5 9.Nh4 e4+=; B3) 7.c4 0–0 (7...Nb6 8.cd5 ed5 9.Be2 0–0=; 7...a6 8.d4 0–0 9.cd5 Nd5+=; 7...Bd6 8.d4 0–0 9.cd5 Nd5=) 8.d4 a6 9.cd5 Nd5+=; C) 6...Bd6 C1) 7.Be2 0–0 (7...e5 8.0–0 0–0 9.d3 Qc7+=; 7...a6 8.Nc3 e5 9.ba6 ba6+=) 8.0–0 e5 9.Ng5 a6–/+; C2) 7.Nc3 e5 (7...0–0 8.d4 c4 9.Be2 a6+=; 7...Qc7 8.d4 0–0 9.Be2 a6+=) 8.d3 0–0 9.Be2 Re8+=; C3) 7.c4 0–0 (7...a6 8.d4 0–0 9.cd5 ed5+=) 8.d4 cd4 9.Bd4 e5+=.

6.Nc3 e5 7.Be2 e4 8.Ng5 Nb6 9.d3 h6 +=.

6.d4 c4 7.Nbd2 Qa5 8.a4 c3 9.Nb3 cb2 10.Na5 Bb4 11.Nd2 ba1Q 12.Qa1 Ba5 13.Bd3 0–0 14.Ke2 Bd2 15.Kd2 Nb6 16.f3 Bd7 17.Qa2 Rac8 18.Rb1 Nc4 19.Bc4 Rc4 20.c3 Rfc8 21.Qa3 Rc3 22.Qc3 Rc3 23.Kc3 Kf8 24.Kb4 Ke7 25.Rc1 Kd6 26.a5 Ne8 27.b6 a6 28.Kc3 f5 29.h3 Bb5 30.Kd2 Bc4 31.f4 Nf6 32.Ke1 Kc6 33.Rb1 h5 34.Kf2 Ne4 35.Ke1 Nd6 36.Kf2 h4 37.Ke1 Bd3 38.Rc1 Nc4 39.Kf2 Kb5 40.g3 hg3 41.Kg3 Ka5 42.Kf2 Kb6 43.Rg1 a5 44.Rg7 a4 45.h4 a3 46.Rg1 a2 47.Ra1 Bb1 48.h5 Nd6 49.h6 Nf7 50.h7 Kc7 0–1. T Labahn – Gradl, 1989.

6.d4 cd4 7.ed4 Bb4 8.Nbd2 Ne4 9.Bd3 Nd2 10.Nd2 Bd2 (better is 10...Qa5+=) 11.Qd2+/– (11.Kd2?! Nf6+=) 11...b6 (11...0–0 12.0–0+/–) 12.c4 (12.Ba3!?+/–) 12...dc4+= 13.Bc4 0–0 14.0–0 Bb7 15.Rac1 (15.Rfc1 Nf6+=) 15...Nf6 (15...a6 16.f3+=) 16.Rfd1 (16.f3 Rc8+=) 16...Bd5 (16...a6 17.a4+=) 17.Qb4 (17.Bd3 Qd7+=) 17...Rc8 (17...Bc4 18.Qc4 Nd5 19.Qa4=) 18.f3 (18.Bd3 Qd7=) 18...Bc4= 19.Rc4 Rc4 20.Qc4 Nd5 21.Rc1 (21.Qd3 Qd7=) 21...h6 ½–½. Lunin,Mikhail – Ershov,Aleksey, Zhukovskiy_0211b, 2011.

6.d4 Bd6 7.Be2 0–0 8.0–0 b6 9.Nbd2 Bb7 10.Ne5 Qc7 11.f4 Rac8 (11...c4 12.Ndf3+=) 12.Rc1 Ne4 13.Ne4 de4 14.c4 Rcd8 15.Qe1 f6 16.Bg4 (better is 16.Nd7!? Qd7 17.Qg3+=) 16...fe5+= (worse is 16...Ne5 17.fe5 fe5 18.Be6 Kh8 19.d5+=) 17.Be6 Kh8 18.fe5 Ne5 19.de5 Be5 20.Be5 Qe5 21.Bd7 Bc8 22.Bc8 Rc8 ½–½. Walzer,Heinz (1905) – Rubel,Julian (1875), Rhein Main op 7th, 2004.

6.Be2 Qc7 7.c4 dc4 8.Na3 b6 9.Nc4 Bb7 10.0–0 Bd6 11.Nd6 Qd6 12.d4 Qe7 13.dc5 Nc5 14.Nd4 0–0 15.Bf3 Nfe4 16.Qc2 f5 17.Ba3 Rac8 18.Rac1 Bd5 19.Qe2 Qf6 20.Rc2 Rf7 21.Rfc1 Rfc7 22.h3 Qf7 23.Qd1 h6 24.Bh5 g6 25.Be2 f4 26.Nf3 fe3 27.fe3 Ng3 28.Ne5 Qf5 29.Ng4 Qg5 30.Bb2 Nge4 31.Qd4 Kh7 32.Bf3 h5 33.Be4 hg4 34.Bd5 ed5 35.hg4 Qe7?? 36.g3+– Rf8 37.Rh2 1–0. Jeric,Simon (2295) – Gjuran,Denis (2165), Ljubljana op, 2002.

6.Be2 g6 7.0–0 Bg7 8.d3 0–0 9.Nbd2 Qc7 10.c4 Nb6 11.a4 a5 12.Rc1 dc4 13.Nc4 Nc4 14.Rc4 b6 15.Be5 Qe7 16.Ng5 Bb7 17.Bf3 Nd5 18.Bg7 Kg7 19.Ne4 Nb4 20.d4 Bd5 21.Rc3 c4 22.Nd2 Rac8 (better is 22...Na2!? 23.Rc4 Bc4 24.Nc4 Rab8+=) 23.e4+/– Na2 24.Rc2 Nb4 25.ed5 Nc2 26.Qc2 c3 27.Nb3 Qb4 28.Ra1 Rfe8 29.de6 Re6 30.Bg4 (better is 30.h3!?+–) 30...f5+= 31.Bf3 Qa4 32.h3 Qb5 33.d5 Rd6 34.Re1 a4 35.Nd4 Qb2?? 36.Qa4?? c2–/+ 37.Nc2 Rc2?? 38.Re7+– Kf6 39.Qh4 g5 40.Qh7 Qc1 41.Kh2 Qf4= 42.g3 Rf2 43.Bg2 Rg2 44.Kg2 Qd2 45.Kf1 Qd3 46.Kf2 Qd4 47.Re3 Rd5 48.Qh6 Kf7 49.Qh7 Kf6 50.Qh6 Kf7 51.Qg5?? Qd2–+ 52.Kf3 Qd1 53.Re2 Rd3 54.Kf2+– Rd7 55.Qf5 Kg7 56.Qg4 Kf8+/– 57.Qb4 Kg7 58.Qc3 Kf8?? 59.Qc8 Kg7+= 60.Qc3 Kf8 61.Qb4 Kg7 62.Qg4 Kf8+/– 63.Kg2 Rf7?? 64.Re8!!+– (64.Re8 Ke8 65.Qd1+–) 1–0. Rudnik,Lukasz – Orzechowski,Krzysztof (1775), Rewal Poland, Open–B, 2011.

6.Ne5 Ne5+= (6...Bd6 7.f4 0–0 (7...c4 8.Be2 0–0 9.0–0 a6+=) 8.Be2 c4 9.0–0 a6+=; 6...c4 7.Be2 (7.a4 a6 8.Nf3 Bb4 9.Bc3 Qe7+=) 7...Qc7 (7...Bd6 8.f4 0–0 9.0–0 a6+=) 8.f4 Bd6 9.Nf3 e5+=; 6...a6 7.Be2 (7.ba6 ba6 8.Be2 Bd6 9.Nd7 Bd7+=) 7...Bd6 (7...ab5 8.Bb5 Bd6 9.f4 0–0=) 8.f4 ab5 9.Bb5 0–0=) 7.Be5 Bd6 8.d4 (8.Bd6 Qd6 9.Be2 0–0=) 8...Qa5 (8...Be5 9.de5 Ne4+= (9...Nd7 10.f4+=)) 9.Nd2 (9.Qd2!? Qc7 10.Bd6 Qd6 11.dc5 Qc5 12.Bd3=) 9...Be5+= 10.de5 Nd7 11.Qh5 (11.f4 c4+=) 11...0–0 (11...c4 12.Qg5 0–0 13.a3–+) 12.c4 Qc3 13.Rd1 a6 14.Be2 (better is 14.ba6!? Ne5 15.cd5 ed5 16.Be2 Ra6 17.Ba6–+) 14...ab5–+ (14...Qe5?! 15.Qe5 Ne5 16.ba6 dc4 17.Nc4 Nc4 18.Bc4–/+; 14...Ne5?! 15.cd5 ed5 16.0–0–/+) 15.cb5 (15.cd5 ed5 16.a3 Ra3–+) 15...Ra2 (15...Qe5?! 16.Qe5 Ne5 17.Ra1–+) 16.0–0 (16.e4–+) 16...Rd2 17.Rde1 (17.Rd2 Qd2 18.Rd1 Qb2–+) 17...Qe5 18.Qe5 (18.Qf3 c4–+) 18...Ne5 19.b6 (19.f4 Ng6–+) 19...Nd7 (19...Rb2 20.f4 Nd7 21.Bf3–+) 20.Bb5 Nb6 21.Rc1 (21.Rb1 c4–+) 21...c4 22.Rfd1 (22.f4 f6–+) 22...Rd1 23.Rd1 Bd7 24.Bd7 Nd7 25.Rb1 (25.Kf1 b5–+) 25...b5! 26.Rb5 (26.Kf1 Rb8–+) 26...c3 27.Rb1 c2 28.Rc1 Rb8 (28...Rb8 29.Kf1 Rb1–+) 0–1. Hanamitsu,Itsurou (1810) – Reinhart,Kenneth M (2470), corr ICCF WSTT/3/06/3, 2006.

6.a4 a5

7.Na3 Bd6 8.c4 0–0 9.Be2 b6 10.0–0 Bb7 11.d4 Ne4 12.h3 Rc8 13.Nd2 Ndf6 14.Ne4 Ne4 15.Qb3 Qg5 16.f4 Qg3 17.Rf3 Qh4 18.Qd1 Ng3 19.Rf2 Ne2 20.Qe2 Rfd8 21.cd5 ed5 22.Nc2 c4 23.Bc3 Re8 24.Qd2 Re7 25.Rf3 h5 26.Qf2 Qf6 27.Rg3 Qf5 28.Rc1 f6 29.Ne1 Rce8 30.Nf3? Re3–+ 31.Nh4 Qf4 32.Re3 Qe3 33.Qe3 Re3 34.Nf5 Re6 35.Nd6 Rd6 36.Re1 Kf7 37.Kf2 Bc8 38.Ke2 Bf5 39.Kd1 h4 40.Re3 Re6 41.Re6 Ke6 42.Be1 Be4 43.Bh4 Bg2 44.Bg3 Bh3 45.Bc7 Kf5 46.Bb6 Ke4 47.Kc2 Bd7 48.Ba5 f5 49.Be1 Ke3 50.Bd2 Kd4 51.Bc3 Ke3 52.Bg7 d4 53.Kb2 f4 54.Bh6 Ke4 55.Bg5 f3 56.Bh4 Ke3 (56...Ke3 57.b6 Bc8–+ (57...Ba4?? 58.b7+–)) 0–1. Savic,Draga (2180) – Andrijevic,M (2375), 3rd Open, Paracin SRB, 2010.

7.c4 Nb6 8.Na3 Bd6 (8...Be7 9.Be2 dc4 10.Nc4 Nc4 11.Bc4 Bd6+=) 9.Be2 Qe7 10.0–0 0–0 11.Ne5 Rd8 =.

7.c4 Nb6 8.Qc2 Be7 9.d3 0–0 10.Nbd2 Ne8 (10...Nbd7 11.Be2=) 11.d4 Nc4 (11...f5 12.Be2+=) 12.Bc4+/– dc4 13.Nc4 cd4 14.Bd4 Bf6 (14...Bb4!? 15.Ke2 e5 16.Be5 Be6+/–) 15.Rd1+– Bd4 16.Rd4 (16.ed4?! Nf6+=) 16...Qc7 17.0–0 Nf6 (17...f6 18.Qb3+–) 18.Rc1 b6 19.Nfe5 Bb7 (19...Qc5 20.Qb1 Bb7 21.Nc6 Bc6 22.bc6+–) 20.Nd6 Qc2 21.Rc2 Bd5 22.Nc6 Bc6 (22...Bb3 23.Rc3 Ba2+–) 23.bc6 (23.Rc6?! e5 24.Rd3 e4+–) 23...Ne8 24.Nb5 Nf6 (24...g5 25.c7 Rc8 26.Kf1+–) 25.c7 Nd5 26.e4 (26.Rc6 h6+–) 26...Nf4 (26...Ne7+–) 27.Nd6 1–0. marekt – skecher,, 2015.

7.c4 Nb6 8.d3 dc4 9.dc4 Qd1 10.Kd1 Ne4 11.Ke1 f6 =.

7.c4 Bd6 A) 8.Be2 Qe7 (8...e5 9.d4 cd4 10.ed4 e4 11.Ne5 dc4=; 8...0–0 9.d3 Qc7 10.cd5 ed5 11.0–0 Re8=; 8...Rb8 9.0–0 e5 10.cd5 Nd5 11.Nc3 Nc3=) 9.0–0 0–0 10.d4 Rd8 11.cd5 Nd5=; B) 8.d3 0–0 (8...e5 9.cd5 Nd5 10.Nbd2 0–0 11.Ne4 Bc7=; 8...b6 9.Be2 0–0 10.cd5 ed5 11.0–0 Qe7=; 8...Qe7 9.Nbd2 0–0 10.Be2 b6 11.Rc1 Bb7=) 9.Be2 Qe7 10.Nc3 Rd8 11.cd5 ed5=; C) 8.Nc3 Nb6 (8...0–0 9.d4 cd4 10.Qd4 Bb4 11.cd5 Nd5=; 8...dc4 9.Bc4 Nb6 10.Be2 e5 11.0–0 0–0=) 9.d4 0–0 10.cd5 ed5 11.dc5 Bc5=; D) 8.d4 0–0 9.cd5 ed5 10.dc5 Nc5 11.Be2 Bg4=.

7.c4 Be7 8.Qc2 (8.Be2 0–0 (8...Nb6 9.Na3 0–0 10.0–0 Bd6 11.d4 Qe7=; 8...dc4 9.0–0 0–0 10.Na3 c3 11.Bc3 b6=; 8...Qb6 9.0–0 0–0 10.d4 cd4 11.Qd4 Rd8+=) 9.0–0 b6 10.Na3 Bb7 11.Rc1 Bd6=; 8.d4 0–0 (8...cd4) 9.cd5 Nd5 10.Bd3 b6 11.0–0 Bb7=) 8...0–0 (8...Nb6 9.d3 Bd6 10.e4 Be7 11.Be2 d4=; 8...Bd6 9.Be2 0–0 10.0–0 Qc7 11.d3 dc4=; 8...b6 9.Be2 0–0 10.cd5 Nd5 11.0–0 Bb7=) 9.Nc3 (9.Be2 b6 10.cd5 Nd5 11.0–0 Bb7=) 9...Re8 (9...Nb6 10.cd5 ed5 11.Bd3 Bd6=) 10.d3 (10.cd5 ed5 11.Be2 Nb6=) 10...b6 (10...Qb6 11.cd5 Nd5=) 11.0–0–0 (11.Be2!?= Bb7=) 11...Qc7 (11...Bb7+=) 12.h3 dc4 (12...Bb7!?–/+) 13.dc4= Bb7 14.Rg1 Rad8 15.Bd3 Nf8 16.Ne4 Rd3 (better is 16...Ne4 17.Be4 Bd6=) 17.Nf6+/– gf6 (17...Bf6!? 18.Qd3 Rd8+/–) 18.Qd3+– (18.Rd3?! Be4+=) 18...Rd8 19.Qe2 Ng6 20.Rd8 Bd8 21.Rd1 Be7 22.Qd2 (22.h4 h6+–) 22...Bc8 (22...Bf3 23.gf3 Qh2 24.f4+–) 23.h4 Nf8 24.g3 (24.e4 e5+–) 24...e5 25.Qd5?? (25.Qd3 Bg4 26.Qe4 h5+–) 25...Ng6?? (better is 25...Bb7 26.Be5 Qc8–/+) 26.Qc6+– Qb8? 27.h5 Nf8 28.Nh4 Be6 29.g4! f5 30.gf5 Bh4 31.Rg1 Kh8 32.fe6 fe6 33.Qg2 Ng6+– 34.hg6 hg6 35.Qg6 (35.Qg6 Bg3 36.Rh1 Bh4 37.Rh4#) 1–0. De Visser,Arno – van der Plas, 1982.

7.d4 A) 7...c4 A1) 8.Ba3 Ba3 (8...Bb4 9.c3 Ba3 10.Ra3 0–0 11.Be2 Qe7=) 9.Ra3 0–0 10.Be2 Qe7 11.0–0 b6=; A2) 8.c3 Qc7 (8...Be7 9.Ba3 0–0 10.Be2 Ba3 11.Ra3 Qe7=; 8...Ne4 9.Be2 Be7 10.Ba3 0–0 11.Be7 Qe7=) 9.Be2 e5 10.de5 Ne5 11.Ba3 Ba3=; A3) 8.Be2 Ne4 (8...Bb4 9.c3 Bd6 10.Ba3 Ba3 11.Ra3 0–0=) 9.0–0 Qc7 10.Ba3 Ba3 11.Ra3 0–0=; B) 7...cd4 8.Bd4 Qc7 (8...Bd6; 8...Bb4) 9.Nbd2 e5 10.Bb2 Bb4 11.c3 Bc3=.

7.Be2 Be7 8.0–0 0–0 9.c4 Nb6 (9...Qc7 10.cd5 ed5 11.d3=) 10.cd5 (10.d3 Nbd7=) 10...ed5 (worse is 10...Qd5 11.d4+=) 11.d4 (11.Qc2 Bd6=) 11...c4 12.Qc2 (12.Nc3 Bb4+=) 12...Ne4+= 13.Nc3 (13.Ne5 Bb4 14.Nc4 Nc4 15.Bc4 Bf5=) 13...Bf5 14.Qc1 (14.Ne4 Be4 15.Qd2 Bb4+=) 14...Bb4 15.Nd2 Nd6 16.Ra2 (16.Nf3 Qe7+=) 16...Re8 17.Qd1 (17.Rd1 Qg5–/+) 17...Qg5 18.Nf3 Qh6 19.Ne5 f6 20.Nf3 Rad8 21.Ra1 (21.Qc1 Re7–/+) 21...Ne4 22.Ne4 (22.Qc1 Nc8–/+) 22...Be4 (22...de4!? 23.Ne1 Rc8–+) 23.Rc1–/+ Bd6 (23...Nc8 24.Bc3–/+) 24.h3 (24.g3 Bb4+=) 24...Nc8 (24...Bf5 25.Re1–/+) 25.Nd2 Bg6 26.Bf3 (26.Nb1 Nb6 27.Nc3 Re7+=) 26...Bb4–/+ 27.Bc3 (27.Nb1 Bd3–/+) 27...b6 (27...Ne7 28.Bb4 ab4 29.a5+=) 28.Be2 (28.Re1 Qh4+=) 28...Nd6–/+ 29.Bf3 (29.Re1 Be4–/+) 29...Nf7 30.Qe1 (30.Re1 Ng5–/+) 30...Ng5 31.Be2 Bd6 (31...Bf5 32.Qd1–/+) 32.f4 Ne4 33.Ne4 Be4 34.Qd2 (34.Qg3 Re7–/+) 34...f5 (34...g5 35.Rce1–/+) 35.Bf3 Qe6 36.Be4 Qe4 (36...de4?! 37.d5 Qf7 38.Bd4=) 37.Rf3 Re6 (37...Rc8 38.h4–/+) 38.Qc2 Ba3 39.Bb2 Bb2 (39...Qc2 40.Rc2 Bd6 41.Kf2–/+) 40.Qb2 Qd3 (40...Rg6 41.Kh2–/+) 41.Qc3+= Qe4 42.Qc2 ½–½. Franke,Roland (1915) – Kugelmann,Werner (2100), Bahn–chT S+W, 1997.

7.Be2 Bd6

8.0–0 e5 9.Nh4 Nb6 10.d3 0–0 11.c4 e4 +=.

8.c4 b6 9.0–0 Bb7 10.d3 Qc7 11.Nbd2 0–0–0 (11...0–0 12.cd5 Bd5 13.Qc2=) 12.cd5+= ed5 13.Qc2 Kb8 14.Rfc1 h6 15.g3 Rhe8 16.d4 c4 17.Ba3 Ba3 18.Ra3 Qd6 19.Rc3 Rc8 20.Qf5 (20.Nh4 g6+/–) 20...g6 21.Qc2 Qc7 ½–½. Del Val,J (1720) – Smith,Bri (1800), Open, Davos SUI, 2008.

8.c4 Rb8 9.d4 cd4 10.Qd4 e5 11.Qh4 e4 +=.

8.c4 e5 9.cd5 e4 10.Ng1 Nd5 11.d3 ed3 =.

8.d3 Qe7 (8...e5 9.c4 dc4 10.dc4 Qe7 11.Nc3 Rb8=; 8...Qc7; 8...0–0; 8...b6; 8...Qb6; 8...Rb8) 9.c4 0–0 10.Nbd2 b6 11.0–0 Bb7 =.

8.d4 0–0 (8...cd4 9.ed4 Bb4 10.Nbd2 Ne4 11.0–0 Nc3=; 8...Qe7; 8...Rb8) 9.dc5 Nc5 10.0–0 b6 11.Be5 Be5 +=.

6.a4 a6

7.ba6 ba6 8.Ba3 A) 8...Rb8 9.Nc3 (9.Be2 Bd6 10.Nc3 Ne4 11.Rb1 Rb1 12.Qb1 Nc3 13.dc3 Nf6 14.0–0; 9.c4 d4 10.Be2 Bb7 11.0–0 Bf3 12.Bf3 Ne5 13.Be2 d3 14.Bf3) 9...Bd6 10.Rb1 Rb1 11.Qb1 0–0 12.Be2 e5 13.0–0 e4 14.Nh4; B) 8...Bd6 9.Be2 (9.c4 0–0 10.Nc3 Qc7 11.Rb1 d4 12.Ne2 de3 13.fe3 Bb7 14.Nc3; 9.Nc3 0–0 10.Be2 Ne4 11.0–0 Ndf6 12.Bb2 Rb8 13.Rb1 Qa5 14.Ne4; 9.Bd3 e5 10.Nh4 e4 11.Be2 0–0 12.Nf5 Be5 13.Nc3 Bc3 14.dc3; 9.h3 e5 10.Nc3 0–0 11.Nh4 d4 12.Qf3 Rb8 13.Nf5 dc3 14.Nd6) 9...0–0 10.Nc3 Ne4 11.Bb2 Rb8 12.Rb1 Ndf6 13.0–0 Qa5 14.Ne4.

7.ba6 ba6 8.Nc3 A) 8...Rb8 9.Rb1 (9.Ba3 Bd6 10.Bd3 e5 11.e4 de4 12.Be4 Ne4 13.Ne4 Nf6 14.Nd6) 9...Bd6 10.Ba3 Rb1 11.Qb1 0–0 12.Be2 Ne4 13.Bb2 Ndf6 14.d3; B) 8...Bb7 9.Ba3 (9.Rb1 Bd6 10.Bd3 Rb8 11.0–0 0–0 12.h3 e5 13.Nh4 g6 14.Ba3) 9...Bd6 10.Bd3 0–0 11.Rb1 Rb8 12.0–0 Qa5 13.Qe2 Ne5 14.h3; C) 8...Be7 9.Be2 (9.Rb1 0–0 10.Be2 e5 11.0–0 d4 12.ed4 ed4 13.Na2 Nb6 14.Nc1) 9...e5 10.a5 0–0 11.0–0 Rb8 12.Na4 Qc7 13.Nb6 e4 14.Bf6; D) 8...h6 9.Ba3 (9.Bd3 c4 10.Be2 Bd6 11.0–0 Nc5 12.Rb1 0–0 13.d3 cd3 14.cd3; 9.Rb1 Bd6 10.Ba3 e5 11.Be2 0–0 12.0–0 Qa5 13.h3 e4 14.Nh2) 9...e5 10.Rb1 e4 11.Nh4 d4 12.Ne2 Ne5 13.Ng3 Nfg4 14.Ngf5; E) 8...Qa5 9.Ba3 (9.Rb1 Bd6 10.Ba3 Ne5 11.Be2 0–0 12.0–0 Bd7 13.Ne5 Be5 14.d4; 9.Bd3 Rb8 10.Rb1 Bd6 11.h3 Bb7 12.0–0 0–0 13.Ba3 Nb6 14.Rb3; 9.g3 Bd6 10.Nb5 Be7 11.Ne5 Ne5 12.Be5 0–0 13.Bg2 Qd8 14.Na3; 9.h4 Rb8 10.Rb1 Bd6 11.Ba3 Bb7 12.Bd3 0–0 13.0–0 Nb6 14.Bb2; 9.Be2 Rb8 10.Ba3 Bd6 11.Rb1 Bb7 12.0–0 0–0 13.Bd3 Nb6 14.h3) 9...Rb8 10.Bd3 Bd6 11.0–0 0–0 12.Qe2 Ne5 13.Rab1 Bb7 14.h3; F) 8...Bd6 9.Rb1 (9.Be2 Rb8 10.Rb1 0–0 11.0–0 Bb7 12.Re1 Qa5 13.Bd3 c4 14.Be2; 9.Bd3 c4 10.Be2 0–0 11.0–0 Nc5 12.Rb1 Bd7 13.d3 cd3 14.cd3; 9.h3 0–0 10.Be2 e5 11.0–0 d4 12.Na2 e4 13.Nh4 Nb6 14.ed4; 9.Ba3 e5 10.Nh4 0–0 11.Nf5 Nb6 12.Nd6 Qd6 13.a5 Nc4 14.Bc4; 9.h4 0–0 10.h5 Rb8 11.Rb1 h6 12.Ba3 Bb7 13.Be2 Qa5 14.Rb3) 9...0–0 10.Be2 e5 11.Ba3 e4 12.Nh4 Ne5 13.f4 Nc4 14.Bc4.

7.ba6 ba6 8.c4 Rb8 9.Ra2 (9.Qc2 Bd6 10.Nc3 0–0 11.cd5 ed5 12.Be2 Re8 13.0–0 Ne5 14.Ne5; 9.Ba3 Bd6 10.Nc3 0–0 11.Rb1 Rb1 12.Qb1 Nb6 13.cd5 ed5 14.d4; 9.Bf6 Nf6 10.Bd3 Rb4 11.Qe2 Bd6 12.Nc3 0–0 13.0–0 Qa5 14.Rab1; 9.Qc1 Bd6 10.Nc3 0–0 11.Bd3 d4 12.Ne2 de3 13.fe3 Bb7 14.Ng3) 9...Bd6 10.Na3 (10.Be2 0–0 11.0–0 Rb4 12.cd5 ed5 13.Ba3 Qa5 14.Bb4) 10...Qe7 (10...0–0 11.Be2 Ne4 12.0–0 Bb7 13.d3 Nef6 14.Qc2) 11.d3 (11.Be2 0–0 12.0–0 Bb7 13.Qc2 Ne4 14.d3) 11...d4 (11...0–0 12.Be2 Bb7 13.0–0 Bc6 14.h3) 12.e4 (12.Be2 de3 13.fe3 0–0 14.0–0) 12...0–0 13.Be2 Ng4 (13...h6 14.0–0) 14.0–0 Nge5 15.Ne5 Ne5 16.f4 Nc6 17.e5 Bc7 18.Bc1 Nb4 19.Rb2 Bd7 20.Bf3 Qe8 21.Be4 Ba4 22.Qf3 f5 23.ef6 Rf6 24.g4 Qd7 25.g5 Rff8 26.f5 ef5 27.Bf5 Rf5! 28.Qf5 Qf5 29.Rf5 Nd3 30.Rb8 Bb8 31.Bd2 Bc6 32.Rf1 Be4 33.h4 Bg3 34.h5 Ne5 35.Bf4 Bf4 36.Rf4 Nf3 37.Kf1 Ng5 38.Rf2 Bf3 39.h6 gh6 40.Nb1 Be4 41.Nd2 Bd3 42.Ke1 Kg7 43.Rg2 a5 44.Nb3 Bc4 45.Nc5 Kf6 46.Kd1 h5 47.Rh2 Kg6 48.Kc2 Nf3 49.Rf2 (49.Rg2 Kf5 50.Rg7 h4 51.Rh7 Kg4 52.Rg7 Kf4–+) 49...Bd5 50.Kd3 Kf5 51.Nb3 Bb3 52.Rf3 Ke5 53.Rf8 Be6 54.Ra8 Bf5 55.Kc4 h4 56.Ra5 Ke4 57.Ra4 h3 58.Kc5 h2 59.Rd4 Kf3 (59...Kf3 60.Rd1 Be4–+) 0–1. Sitnikov,A (2450) – Burmakin,V (2610), 4th Open A, Moscow RUS, 2008.

7.ba6 ba6 8.c4 Bd6 9.Nc3 (9.Qc2 0–0 10.Nc3 Rb8 11.cd5 ed5 12.Be2 Re8 13.0–0 Ne5 14.Ne5; 9.cd5 ed5 10.Nc3 0–0 11.Be2 d4 12.ed4 cd4 13.Nd4 Ne5 14.a5) 9...0–0 10.Bd3 Rb8 11.Rb1 Nb6 12.cd5 ed5 13.0–0 Nc4 14.Bc4.

7.ba6 ba6 8.Be2 A) 8...Bd6 9.Nc3 (9.Qc1 Rb8 10.Nc3 0–0 11.0–0 Qa5 12.Rb1 Nb6 13.d4 cd4 14.ed4; 9.c4 Rb8 10.Ra2 Bb7 11.0–0 0–0 12.Nc3 Qc7 13.cd5 Nd5 14.g3; 9.Ra2 0–0 10.Nc3 e5 11.0–0 d4 12.Nb1 e4 13.Nh4 de3 14.fe3; 9.0–0 Rb8 10.Ba3 Bb7 11.Nc3 0–0 12.Qe1 Nb6 13.d4 Ne4 14.g3; 9.Ba3 0–0 10.Nc3 Ne4 11.0–0 Ndf6 12.Bb2 Rb8 13.Rb1 Qa5 14.Ne4) 9...0–0 10.0–0 Rb8 11.Rb1 Bb7 12.Qe1 Qa5 13.d3 Bc7 14.Qd2; B) 8...Bb7 9.0–0 (9.c4 Rb8 10.cd5 ed5 11.0–0 Bd6 12.Qc2 0–0 13.Nc3 Qa5 14.Ba3; 9.Nc3 d4 10.ed4 cd4 11.Nd4 Qb6 12.Nb3 Bg2 13.Rg1 Bc6 14.Rb1; 9.d3 Bd6 10.0–0 Rb8 11.Nbd2 0–0 12.Nb3 Bc6 13.Bc3 Nb6 14.Ne5) 9...Rb8 10.c4 dc4 11.Qc1 Bd6 12.Na3 Bf3 13.Bf3 Qc7 14.Bf6; C) 8...Rb8 9.Qc1 (9.Ra2 Bd6 10.Nc3 0–0 11.0–0 Bb7 12.h3 Qa5 13.Qe1 h6 14.d3; 9.Ba3 Bd6 10.Nc3 Bb7 11.0–0 0–0 12.Qe1 Nb6 13.d4 Ne4 14.g3) 9...Bd6 10.Nc3 0–0 11.0–0 Qa5 12.Rb1 Nb6 13.d4 Na4 14.Na4.

6.a4 b6

7.a5 a6 =.

7.a5 Bd6 8.d4 (8.ab6 Qb6 9.d4 c4 10.Ba3 Ne4 11.Nfd2 Ndf6–/+) 8...ba5 (8...0–0) 9.Bc3 Bc7 10.dc5 Nc5 11.Bd4 Bd6 +=.

7.c4 Bd6 8.d4 Qc7 9.Nc3 Bb7 10.Be2 0–0 11.cd5 ed5 12.Qc2 Rac8 13.0–0 cd4 14.Nd4 Bh2 15.Kh1 Be5 16.Rac1 Bd4 17.ed4 Qf4 18.Qd3 Rfe8 19.g3 Qd6 20.Kg2 Ne4 21.Bg4 g6 22.Bd7 Qd7 23.Rh1 Qf5 24.Nd1 Rc1 25.Bc1 Rc8 26.Be3? Ng3 0–1. Borrmann – Wicklund Hansen, corr 1977.

7.d3 Qc7 8.c4 a6 9.ba6 Ba6 10.cd5 ed5 11.Nc3 Bd6 =.

7.d3 Qc7 8.c4 Bb7 9.h3 (9.cd5 ed5 10.Be2 Bd6= 11.0–0 0–0=) 9...Be7 (9...dc4 10.dc4 Bd6 11.a5+= Rd8+=) 10.Nbd2 (10.cd5 Nd5 11.a5 (11.Be2 0–0=) 11...ba5=) 10...0–0+= 11.Qc2 (11.cd5 Nd5+=) 11...Rfe8 (11...a6+=) 12.g4 Rad8 (12...a6 13.g5 Nh5 14.ba6 Ra6 15.Be2+=) 13.Rg1 d4 14.e4 Nf8 15.Nb3 Ng6 16.a5 Ra8 17.a6 Bc8 18.0–0–0 Nd7 19.Kb1 Nde5 20.Ne5 Ne5 (20...Qe5 21.Bg2=) 21.Bg2 Ng6 22.Bc1 e5 23.Nd2 (23.Qe2 Be6=) 23...Rb8 (23...Nf4 24.Nf3 Ng2 25.Rg2=) 24.Nf3= Ba6 25.Ne5?? (better is 25.ba6 b5 26.Ka1=) 25...Ne5–+ 26.f4 Nc6! 27.Qa4 (27.bc6 b5) 27...Bb5! 28.cb5 (28.Qb5 Nb4; 28.cb5 Nb4) 28...Nb4 29.e5 c4 30.dc4 Qc4 31.Bc6 Red8–+ 32.Bb2 d3 33.Rc1 Qf4 34.Rgf1 Qg5 35.Rf5 Qh4 36.Qb3 d2 37.Rd1 Rd3?? 38.Qf7+– Kh8 39.Qg7 (39.Qg7 Kg7 40.e6 Kg8 41.Rf7 Nc6 42.bc6–+). De Visser,Arno – van der Plas, 1984.

7.d3 Qc7 8.c4 Bd6 9.Nc3 dc4 10.dc4 Bb7 11.a5 Rd8 +=.

7.d3 Qc7 8.Be2 Bd6 (8...e5 9.Na3 Bd6 10.c4 e4 11.Nh4 Be5=; 8...a6 9.Na3 Bd6 10.0–0 e5 11.ba6 Ba6=) 9.c4 dc4 10.dc4 0–0 11.a5 ba5 =.

7.d3 Bd6 A) 8.Nbd2 Bb7 (8...e5 9.c4 d4 10.Nh4 0–0 11.Nf5 Qc7=; 8...0–0 9.c4 a6 10.Be2 Bb7 11.0–0 ab5=) 9.a5 a6 10.e4 d4 11.Nc4 Be7+=; B) 8.Be2 0–0 (8...e5 9.c4 0–0 10.cd5 Nd5 11.Nbd2 Qe7=; 8...Qc7 9.c4 dc4 10.dc4 0–0 11.a5 ba5=) 9.0–0 e5 10.c4 dc4 11.dc4 Qc7+=; C) 8.Na3 0–0 9.Be2 Bb7 10.c4 Qe7 11.0–0 Rfd8=.

7.d4 A) 7...c4 8.Be2 a6 (8...Be7 9.0–0 0–0 10.Ba3 a6 11.Be7 Qe7=; 8...Bb4 9.c3 Be7 10.Ba3 a6 11.0–0 0–0=) 9.0–0 Bd6 10.Ba3 Ba3 11.Na3 Ne4=; B) 7...Qc7 B1) 8.a5 ba5 (8...a6 9.ab6 Qb6 10.c4 Bb7 11.dc5 Bc5=; 8...c4 9.a6 Ne4 10.Ba3 Ndf6 11.Bf8 Rf8+=) 9.Bc3 c4 10.Ba5 Qb7 11.Nc3 a6+=; B2) 8.c4 cd4 9.Qd4 Bb7 10.Nbd2 Rd8 11.Be2 Bc5=; C) 7...a6 8.c4 Be7 (8...cd4 9.Nd4 Bb4 10.Bc3 Bc3 11.Nc3 dc4=; 8...Bb7 9.cd5 Bd5 10.ba6 Bd6 11.Nc3 0–0+=; 8...ab5 9.cd5 ed5 10.Bb5 Bd6 11.Bc6 Rb8+=) 9.dc5 Nc5 10.cd5 Qd5 11.Nc3 Qb3=; D) 7...cd4 D1) 8.Nd4 Qc7 9.Nd2 e5 10.N4b3 Bb4 11.Bd3 0–0+=; D2) 8.Qd4 Bd6 9.c4 Bb7 10.Nc3 e5 11.Qh4 Bb4+=; D3) 8.ed4 Bb4 (8...a6 9.Bd3 ab5 10.ab5 Bb4 11.Nbd2 Ra1=; 8...Qc7 9.Bd3 Bb4 10.Nbd2 Nh5 11.g3 Nhf6=; 8...Bd6 9.Bd3 a6 10.Ba3 Qe7 11.Bd6 Qd6=) 9.c3 Bd6 10.Ba3 Ba3 11.Ra3 a6=; E) 7...Be7 E1) 8.a5 c4 (8...0–0 9.Ne5 Qc7 10.Nc6 Bd6 11.ab6 Qb6=; 8...ba5 9.Bc3 0–0 10.Ba5 Qe8 11.Be2 c4=) 9.a6 Ne4 10.Nfd2 Ndf6 11.Ba3 Bd7–/+; E2) 8.dc5 Nc5 9.Be2 0–0 10.0–0 a6 11.Nbd2 Bb7=; F) 7...Bd6 F1) 8.dc5 Nc5 9.Be2 0–0 10.0–0 a6 11.Nbd2 Bb7+=; F2) 8.Be2 a6 (8...0–0 9.dc5 Nc5 10.0–0 a6 11.Be5 ab5+=) 9.dc5 Nc5 10.0–0 0–0 11.Be5 Be5+=; F3) 8.a5 ba5 (8...0–0 9.dc5 bc5 10.Be2 e5 11.0–0 e4=) 9.Bc3 0–0 10.Ba5 Qe7 11.c4 Bb7+=.

7.Be2 a6 8.0–0 (8.ba6; 8.Na3; 8.Nc3) 8...Bd6 (8...Be7 9.c4 0–0 10.d4 dc4 11.Bc4 ab5=) 9.Nc3 0–0 10.ba6 Ba6 11.Nb5 Qe7 =.

7.Be2 Be7 A) 8.0–0 Bb7 (8...a6 9.c4 0–0 10.d4 dc4 11.Bc4 ab5=; 8...Bd6 9.c4 0–0 10.d4 Bb7 11.cd5 Nd5=; 8...0–0 9.c4 Bb7 10.d3 dc4 11.dc4 Qc7=) 9.a5 a6 10.ba6 Ba6 11.Ba6 Ra6+=; B) 8.Na3 0–0 (8...Qc7 9.c4 0–0 10.d3 Bb7 11.cd5 Nd5=; 8...Bd6 9.0–0 e5 10.d3 Qc7 11.e4 c4=; 8...a6 9.0–0 0–0 10.ba6 Ba6 11.Nb5 Re8=; 8...Bb7 9.0–0 0–0 10.c4 a6 11.d4 Re8=) 9.0–0 Qc7 10.d3 e5 11.c4 e4=.

7.Ne5 A) 7...Bd6 8.f4 (8.Nd7 Bd7 9.Be2 0–0 10.f4 a6 11.0–0 c4+=) 8...0–0 (8...a6 9.Be2 c4 10.0–0 Qc7 11.Nd7 Qd7=; 8...Ne4 9.Qg4 Ne5 10.fe5 Bf8 11.Be2 h5=) 9.Be2 Qc7 10.Nd7 Nd7 11.0–0 Bb7=; B) 7...a6 8.Nd7 (8.ba6; 8.Be2; 8.Na3; 8.d4) 8...Bd7 (8...Nd7 9.Qf3 Qg5 10.h4 Qd8 11.c4 ab5=) 9.ba6 c4 10.d3 Ra6 11.dc4 Ra4=; C) 7...a5 C1) 8.Nd7 Nd7 (8...Qd7 9.Qf3 Be7 10.Be2 Bb7 11.Be5 0–0=; 8...Bd7 9.Be5 Bc8 10.d4 Bd6 11.Bd6 Qd6=) 9.Qf3 Bb7 10.Be2 Qh4 11.h3 Ra7=; C2) 8.f4 Ne5 9.fe5 Nd7 10.Qg4 Qc7 11.Qg5 g6=; C3) 8.Be2 Ne5 (8...Bd6 9.f4 0–0 10.0–0 Bb7 11.Qe1 Qc7=; 8...Bb7 9.f4 Bd6 10.0–0 0–0 11.c4 dc4=) 9.Be5 Bd6 10.Bd6 Qd6 11.0–0 0–0=; D) 7...Ne5 8.Be5 Bd6 (8...a6 9.Nc3 Bd6 10.Bd6 Qd6 11.ba6 Ba6+=; 8...Nd7 9.Bb2 e5 10.c4 d4 11.Qf3 Rb8=) 9.Bd6 Qd6 10.Be2 0–0 11.0–0 e5+=.

7.c4 Bb7

8.Na3 Bd6 9.d3 Qc7 10.h3 h5 (10...0–0 11.cd5 ed5 12.Be2=) 11.Be2 h4 12.0–0 0–0–0 (12...Kf8 13.Re1+=) 13.Ng5 Nf8 14.d4 (14.a5 Rd7+/–) 14...N8h7 (14...cd4!? 15.ed4 Kb8=) 15.Nh7+/– Rh7 16.Bd3 Rh6 17.a5 g5 (17...cd4 18.Bd4 e5 19.Bc3+=) 18.a6 (18.ab6!? ab6 19.cd5 Bd5 20.Nc4 Bc4 21.Bc4 cd4 22.Bd4+/–) 18...Ba8+= 19.dc5 Bc5 20.Qf3 Ne4 21.Rad1 (21.Rfc1 f5 22.Bd4 g4 23.hg4 h3 24.gh3 Nd2=) 21...g4 (21...f5 22.cd5 Bd5 23.Be4 Be4 24.Rd8 Qd8 25.Qd1+=) 22.hg4 (22.Qg4 f5 23.Qf4 Qf4 24.ef4 Rg8–/+) 22...Ng5 (22...h3 23.Be4 (23.gh3?? Ng5 24.Qh1 Rh3–+) 23...hg2 24.Qg2 de4 25.Rd8 Qd8 26.Nc2–+) 23.Qf4+= Qe7 (23...Rg8 24.cd5 Bd5 25.Qc7 Kc7 26.f4+=) 24.cd5 (24.Bg7 Bd6 25.Qd4=) 24...Rd5 25.e4 h3 26.ed5 (better is 26.Rfe1 hg2 27.Kg2=) 26...Bd5–+ 27.Be4 (27.Qh2 Qf8 28.Bc4 hg2 29.Bd5 ed5 30.Qg2 Nh3 31.Qh3 Rh3 32.Kg2–+) 27...Be4 28.Rd7 (28.Rfe1 h2 29.Kh1–/+) 28...Qd7 29.Qg5 hg2 (29...hg2 30.Qg8 Qd8 31.Qd8 Kd8 32.Bf6 Ke8 33.Bh4 Rh4 34.Rd1 Rh1) 0–1. Miettinen,Stig – Vailahti,Olavi, SM/ME–65 corr/Ks65 FIN, 1965.

8.Qb3 Qc7 9.Be2 Bd6 10.d3 0–0 11.Nbd2 Rac8 (11...a6 12.0–0+=) 12.h3 Rfe8 13.0–0 e5 14.cd5 Bd5 15.Qc2 Qb8 16.e4 Bb7 17.Nc4 (17.a5 Bc7+=) 17...Bc7 (17...a6 18.Rfc1=) 18.Nh2 (18.a5 ba5 19.Rfb1 Re7+=) 18...Nf8 (18...a6 19.Ng4=) 19.Ng4 N6d7 20.Nge3 Ne6 21.Bg4 Rcd8 22.Nf5 (22.Be6 Re6 23.a5 Bc8+=) 22...g6 23.Nh6 Kg7 24.Be6 Re6 25.Qd2 f6 26.Ng4 g5 (26...Kh8 27.Qe3=) 27.Nce3 h5 (27...c4 28.Ba3 h5 29.Nf5 Kg6+/–) 28.Nf5+/– Kg6 29.Nge3 Nf8 30.Qe2 Rd7 31.Rfd1 Qd8 32.Ng3 Rh7 33.Qf3 Rd6 34.Nc4 Re6 35.h4 Qe8 (35...gh4 36.Qf5 Deflection) 36.Qf5+– Kh6 37.hg5 fg5 38.Be5! Rf7 (38...Be5 39.Ne5 Combination; 38...Re5 39.Qf6 Double attack (39.Qf6 Decoy)) 39.Qh3 (39.Bc7!? Rf5 40.Nf5 Kh7 41.Bd6+/–) 39...Be5+= 40.Qh5 Kg7 41.Qg5 Ng6?? (better is 41...Kh8 42.Ne5 Re5=) 42.f4. Hoelldorfer,August – Hartlaub,Marianne, Bayern–ch Seniors, 1995.

8.Qb3 Bd6 9.d4 =+.

8.d3 Bd6 9.Be2 0–0 10.Nbd2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4 b6 9.d3 Bb7 10.Nbd2).

8.d4 Be7 9.Bd3 dc4 10.Bc4 0–0 11.0–0 Rc8 12.Nbd2 Ne4 13.Ne4 Be4 14.Nd2 cd4 15.Bd4 Bf6 (15...Bf5 16.Qh5=) 16.Ne4 Rc4 17.Bf6 (17.Nf6 Nf6 18.Qb3 Rc7+=) 17...Nf6 18.Qd8 Rd8 19.Nf6 gf6 20.Rfc1 Rc1 21.Rc1 Rd7 22.g3 Kg7 23.h4 Kg6 ½–½. Vahvaselkae,J – Hasler,Ulrich, corr ICCF–TT/4/90, 1991.

8.cd5 ed5 9.Be2 Bd6 =.

8.Be2 Be7 9.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

7.Be2 Bd6

8.0–0 0–0 9.d4 Bb7 10.dc5 Nc5 11.Bd4 a6 +=.

8.Ra2 0–0 9.0–0 e5 10.Nh4 Nb8 11.Nf3 Qc7 +=.

8.Na3 Qc7 (8...0–0 9.d3 Re8 10.c4 Bb7 11.0–0 Qc7=; 8...Bb7 9.0–0 0–0 10.d3 Qc7 11.c4 Rfd8=; 8...e5 9.d3 0–0 10.c4 d4 11.Nd2 de3=) 9.0–0 0–0 10.d3 e5 11.Nd2 Rd8 +=.

8.Nc3 e5 9.0–0 0–0 10.Nh4 Nb8 11.Nf3 Qc7 +=.

8.c4 0–0 9.cd5 ed5 10.0–0 Re8 11.Nc3 Qe7 =.

8.c4 a6 9.0–0 0–0 10.Nc3 Ne5 11.cd5 ed5 =.

8.c4 Bb7 9.0–0 0–0 10.Nc3 dc4 11.Bc4 Qc7 +=.

8.c4 Bb7 9.0–0 Qc7 10.h3 h6 11.Na3 g5 12.d4 Rg8 13.Nd2 0–0–0 14.dc5 bc5 15.a5 Be5 16.b6 ab6 17.Nb5 Qb8 18.ab6 Nb6 19.Qb3 Bb2 20.Qb2 Nfd7 21.Qa3 Rdf8 22.Nb3 Kd8 23.cd5 ed5 24.Nc5 Nc5 25.Qc5 Nd7 26.Qa3 Rg6 27.Qa5 Ke7 28.Rfc1 Rc8 29.Qb4 Ke8 30.Nd4 Rc1 31.Rc1 Rb6 32.Qa3 Qd6 33.Qd6 Rd6 34.Rc7 Rb6 35.Bb5 Rb5 36.Nb5 Ba6 37.Nd6 Ke7 38.Nf7 1–0. Kreuzer – Mertens, 1983.

8.d3 0–0 (8...e5 9.c4 0–0 10.cd5 Nd5 11.Nbd2 a6=) 9.0–0 e5 10.c4 dc4 11.dc4 Qc7 +=.

8.d4 Bb7 (8...a6 9.0–0 cd4 10.Qd4 e5 11.Qh4 Qc7=; 8...cd4 9.ed4 0–0 10.Ba3 Qc7 11.0–0 a6=; 8...0–0 9.0–0 cd4 10.ed4 Re8 11.Re1 a6=; 8...Qc7) 9.a5 a6 10.Ne5 c4 11.ba6 Ra6 +=.

6.a4 Qc7

7.c4 Bd6 8.Be2 0–0 9.a5 e5 10.d3 e4 11.de4 de4 12.Nfd2 Bh2 13.Qc2 Re8 14.Nc3 Be5 15.Nce4? (better is 15.Rh4+=) 15...Bb2–+ 16.Nf6 Bf6 (16...Nf6?! 17.Qb2 Bg4 18.Bg4 Ng4 19.a6=) 17.Qh7 Kf8 18.Rd1 (18.Ra2 Ke7–+) 18...Bc3 (18...Qa5 19.Kf1–+) 19.Kf1 (19.a6 ba6 20.Qd3 Qe5–+) 19...Bd2 (19...Nf6!? 20.Qh8 Ke7 21.Qh4–+) 20.Rd2 Nf6 21.Qh8 Ke7 22.Qg7 Rg8 23.Qh6 Qa5 24.Rd1 Be6 25.Qf4 Rad8 26.Rd8 Rd8 27.g4 Qb6 28.g5 Nd7 29.g6 Qd6 30.Qg5–/+ f6 31.Rh7= Ke8 32.Rh8 Ke7 33.Rh7 Ke8 34.Rh8 Ke7 35.Rh7 ½–½. Grube,Joerg (1790) – Borjini,Mohamed (1875), Dortmund9, 2003.

7.d3 Bd6 8.c4 0–0 9.Nbd2 b6 10.Be2 a5 11.0–0 Bb7 12.cd5 ed5 13.Qc2 Rfe8 14.Rfe1 Rac8 15.Rac1 Ne5 16.d4 Nf3 17.Nf3 Qe7 18.dc5 bc5 19.Qc3 d4 20.ed4 cd4 21.Qd4 (21.Qa5? Rc1 22.Rc1 Bf3 (22...Qe2 23.Bd4 Bf3 24.gf3 Qf3 25.Re1 Qg4 26.Kh1 Re1 27.Qe1 Qd4 28.Qe3 Qa4 29.Qe2–+) 23.Bf3 Bb4–+) 21...Bf3 22.gf3 Rc1 (22...Bb4 23.Bc3 Rc3 24.Rc3=) 23.Bc1+= Bb4 24.Bd2 Bc5 (24...Bd2 25.Qd2 Qe5 26.Qa5+=) 25.Qh4+/– Bb6 (25...Qc7 26.Bc4 Re1 27.Be1+/–) 26.Bf1 Qd7 27.Re8 Ne8 28.Be3 Be3 29.fe3 Qd1?? (better is 29...Nd6+–) 30.Qe7 Nf6 31.b6 h5 (31...Qd7 32.Qc5 h5 33.Qa5 Qb7+–) 32.b7 Qf3 33.b8Q Kh7 (33...Ne8 34.Qee8 Kh7 35.Bd3 f5 36.Qg8 Kh6 37.Qd6 Kg5 38.Qg7 Kh4 39.Qdg3 Qg3 40.Qg3) 34.Bd3 (34...Kh6 35.Qh8 Kg5 36.Qg7 Kh4 37.Qef6 Kh3 38.Qf3 Kh4 39.Qgf6) 1–0. Trkn – guest2857, ICC, 2004.

7.Be2 A) 7...Bd6 8.d4 (8.c4 0–0 9.cd5 ed5 10.a5 Re8 11.0–0=) 8...0–0 9.dc5 Bc5 10.Nbd2 e5 11.c4=; B) 7...e5 8.Nh4 (8.0–0 a6 9.b6 Qb6 10.Be5 Ne5 11.Ne5+=) 8...c4 9.0–0 Bb4 10.Nf5 0–0 11.f4=.

6.a4 Bd6

7.Na3 e5–/+ 8.d3 0–0 9.e4 Re8 (9...Qa5 10.c3–/+) 10.Nd2 Nb6 11.c3 (11.c4 de4 12.de4 Nbd7+=) 11...Be6 12.a5 Nbd7 13.Be2 (13.a6 ba6 14.ed5 Bd5–/+) 13...Bc7 14.ed5 Bd5 15.0–0 Rb8 (15...Ba5!? 16.Nac4 Bc7–/+) 16.Nac4= b6 17.Ne3 (better is 17.ab6!? Nb6 18.Ne3=) 17...ba5–/+ 18.Nd5 Nd5 19.Bf3 Nf4 20.Nc4 Rb5 21.Bc6 Rb8 22.d4 (better is 22.Qf3!?–/+) 22...ed4–+ 23.Qa4 (23.cd4 Ne2 24.Kh1 Qh4–+) 23...Re7 24.Rae1 (24.cd4 Nb6 25.Nb6 Rb6 (25...ab6?! 26.dc5 bc5 27.Rfd1–+; 25...Bb6?! 26.dc5 Ne2 27.Kh1 Bc5 28.Qc2–+) 26.dc5 Rb2–+) 24...Ne5 (24...Nb6!? 25.Nb6 Rb6 26.Ba1–+) 25.Ne5 Rb2 (25...Be5?! 26.cd4 cd4 27.Ba3–+; 25...Re5 26.Re5 Be5 27.cd4 Ne2 28.Kh1 Bh2 29.Bd7–+) 26.cd4 Qd4 27.Qd4 cd4 28.Nd3 Ne2 29.Kh1 Rb6 30.Bf3 Rbe6 31.Bd5 Rh6 32.g3 Kf8 33.Bc4 Nc3 34.Re7 Ke7 35.Re1 Kf8 0–1. Kulbachny,Vladimir (1975) – Shutov,V, Moscow Region–ch op, 2004.

7.a5 0–0 (7...Bc7 8.Bc3 0–0 9.d3 e5+=; 7...e5 8.Be2 Bc7 9.b6 Bb8–/+) 8.Be2 Bc7 9.Bc3 Ne4 –/+.

7.a5 e5 8.d4 ed4 (8...cd4 9.ed4 e4 10.Nfd2+=) 9.ed4 c4 10.Nc3 (10.Be2!?+=) 10...0–0–/+ 11.Be2 Bb4 12.0–0 Ba5 13.Ne5 Bb4 14.Bf3 Nb6 15.Na4 Na4 (15...Re8 16.Bc3 Bd6 17.Re1–/+) 16.Ra4 Bd6 17.Qa1 Bb8 (17...Bf5 18.c3–/+) 18.Ba3 Re8 19.Bc5 b6 (19...Bf5 20.Qc3–/+) 20.Nc6 (20.Ba3 Bd7 21.Rb1 Bf5–/+) 20...Qc7 21.Nb8 Qb8 (21...Rb8?! 22.Ra7 Rb7 23.Rb7 Qb7 24.Bd6=) 22.Bb4 (22.Ba3!?–/+) 22...Bd7–+ 23.Bc3 (23.Re1 Re1 24.Qe1 Bb5–+) 23...Bb5 (23...Bb5 24.Ra3 Bd7–+) 0–1. Ovcharenko,Leonid (2075) – Rastorotskiy,Mikhail (2020), Vladivostok Cup Open, 2009.

7.c4 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.a4).

7.c4 b6 8.d4 Qc7 9.Nc3 Bb7 10.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4 b6 9.d4 Bb7 10.Nc3 Qc7).

7.c4 b6 8.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4 b6).

7.d3 0–0 (7...e5 8.Be2 Qc7 9.Nbd2 0–0+=; 7...Qc7 8.a5 0–0 9.c4 Rd8+=; 7...a6 8.c4 ab5 9.ab5 Ra1+=; 7...Qb6 8.c4 Qa5 9.Qd2 Qc7=) 8.Be2 Qc7 9.c4 dc4 +=.

7.d4 0–0 (7...cd4 8.ed4 Ne4 9.Bd3 Qa5+=; 7...Qe7 8.Be2 0–0 9.0–0 cd4=; 7...c4 8.Be2 Qa5 9.Qd2 Qb6+=; 7...Qa5 8.Bc3 Qc7 9.dc5 Qc5+=) 8.dc5 Nc5 9.Be2 a6 +=.

7.Be2 0–0 8.0–0 e5 9.Nh4 Bc7 10.Nf5 Re8 11.Ng3 +=.

7.Be2 0–0 8.0–0 e5 9.Nh4 Re8 +=.

7.Be2 0–0 8.c4 e5 9.d3 dc4 10.dc4 Qe7 11.0–0 +=.

7.Be2 0–0 8.d3 e5 9.0–0 Qc7 10.Nfd2 a6 11.c4 +=.

7.Be2 e5 8.0–0 0–0 9.Nh4 Re8 +=.

7.Be2 e5+= 8.d3 0–0 9.0–0 Qc7 10.h3 Re8 11.a5 +=.

7.g3 b6 (7...e5 8.d3 (8.Nh4 0–0 9.Nf5 Bc7 10.Bh3 Nb6 11.d3–/+) 8...Qe7 9.Bg2 0–0 10.0–0 a6 11.Nc3+=) 8.Bg2 (8.d3 0–0 9.Bg2 Bb7 10.0–0 e5 11.c4+=; 8.Nc3 0–0 9.Bg2 Bb7 10.0–0 a6 11.ba6+=) 8...Bb7 (8...0–0 9.0–0 a6 10.d3 e5 11.c4+=) 9.0–0 0–0 10.d3 (10.Na3 Qe7 11.d3+=) 10...Re8 (10...a6 11.c4+=) 11.Re1 (11.c4+=) 11...Nf8 (11...e5 12.c4+=) 12.Be5 (12.c4 e5=) 12...Ng6+= 13.Bd6 Qd6 14.Nbd2 e5 15.e4 Rad8 16.ed5 Bd5 17.Ng5 Bg2 18.Kg2 Qd5 19.f3 Qb7 20.Nge4 Nd5 21.Nc4 Qe7 22.Ne3 (22.Qd2 Qe6=) 22...Ne3+= 23.Re3 f5 24.Nd2 Qg5 25.Kf2 (25.Qe1 f4 26.Re4 Nh4 27.Kh1 fg3 28.hg3 Nf5=) 25...Qh6 26.Qh1 f4 27.Re2 Qh3 28.Re4 Rd4 29.Qg2 Qd7 30.Rae1 Rd5 31.gf4+= Nf4 32.Qg3 Re6 33.Qg4 h5+= 34.Qh4 Rg6 35.Nc4 Rg2 36.Kf1–/+ g5 37.Qf4 Qh3 38.Qf5= Qf5 39.Kg2 Qf6 40.Ne5 Rd8 41.R1e3 Kg7 42.Nc6 Rf8 43.h3 Qc3 44.Re2 Rf7 45.Nd8 Rd7 46.Ne6 Kf6? 47.f4 g4+= 48.hg4 hg4 49.Ng5 Qa1 50.Re6 Kg7?? 51.f5+– Qa2 52.f6 Kg6 53.f7 Kg5 54.f8Q Qd5 55.R2e4 (55.R2e4 Qe4 56.de4 Rd2 57.Kg3 Rg2 58.Kg2 g3 59.Qf5 Kh4 60.Rh6#) 1–0. Hionidis,N – Mastichiadis,F, Athens, 1947.

6.Nc3 Bd6

7.d3 b6 8.Be2 0–0 9.0–0 Bb7 10.Qd2 Qc7 11.Rfd1 d4 12.Ne4 Ne4 13.de4 Be4 14.c3 Bf3 15.Bf3 Bh2 16.Kh1 Rad8 17.cd4 Ne5 18.Be2 cd4 (18...Ng6 19.g3 Bg3 20.fg3 Qg3 21.Bf1+=) 19.Rac1+= Qb8 20.g3 (20.f4 de3 21.Qe3 Ng4 22.Bg4 Bf4+=) 20...Bg3 21.fg3 Ng6 (21...Qb7!? 22.Kg1 Nf3 23.Bf3 Qf3+=) 22.Kh2 (worse is 22.Bd4 e5 23.Kg2 Ne7–/+) 22...de3 23.Qe3 Rd6? (better is 23...Rd1 24.Rd1 Rc8+/–) 24.Rd6+– Qd6 25.Ba3 Qd5 26.Bf8 (26.Bf8 Nf8 27.a3+–) 1–0. Idelis – Grabanzito,, 2004.

7.Bd3 Qc7 (7...e5 8.Bf5 e4 9.Ng5 Ne5–/+; 7...0–0 8.0–0 e5 9.Bf5 e4–/+) 8.Be2 e5 9.Nh4 Nb6 –/+.

7.d4 c4 (7...cd4 8.Qd4 Qc7 9.Rd1 e5+=; 7...Qa5 8.dc5 Nc5 9.Qd2 Qb4+=) 8.Be2 Qa5 9.Qd2 a6 –/+.

7.Be2 Qc7 (7...0–0 8.0–0 e5 9.d3 Qc7+=; 7...e5 8.0–0 e4 9.Ne1 Qc7+=) 8.d4 cd4 9.Qd4 e5 +=.


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

6.c4 b6 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Nbd7).

6.c4 Bd6

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

7.Be2 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

7.Be2 0–0 8.0–0 b6 9.a4 Bb7 10.d3 Qe7 11.Nbd2 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qe7 11.a4).

6.Bd3 Bd6=+

7.0–0 0–0 8.Be2 e5 9.d3 Qc7 +=.

7.0–0 Qc7 8.Nc3 e5 9.Kh1 e4 –/+.

7.0–0 e5 8.Be2 0–0 9.d3 Qc7 +=.

7.0–0 e5 8.Nh4 Nf8 (8...e4!? 9.Be2 Nb6=+) 9.Nf5= Bf5 10.Bf5 Ne6 11.c4 d4 12.d3 0–0 13.a4 g6 14.Be6 fe6 15.a5 Qe7 (15...Qc7 16.a6+=) 16.a6+= b6 17.Re1 Qf7 18.Nd2 e4 (18...Rad8 19.Nf3+=) 19.ed4 ed3 20.Nf3 Ng4 21.h3 Nh2 22.Qd3 (< 22.Nh2 Qf2 23.Kh1 Qb2 24.dc5 Bg3=) 22...Nf3 23.Qf3 (< 23.gf3 Qf4=) 23...Qf3 24.gf3 Rf3 (24...cd4 25.Bd4 Kf7 26.Re4+=) 25.Re6 Rd8 26.Rd1 Rb3? (26...Kf7 27.Re3 Rf5+–) 27.Kg2 (better is 27.dc5 Bh2 28.Kh2 Rd1 29.cb6 ab6 30.Re8 Kf7 31.a7+–) 27...Rb2? (better is 27...Bf8 28.Ba1 Rb4+=) 28.dc5+– Rf2? (28...Rf8 29.cd6 Rbf2 30.Kg1 R2f7+–) 29.Kf2 Bc5 30.Ke2 Rf8 31.Rd7 Rf2 32.Kd1 Rh2 (32...Rf1 33.Re1 Rf8 34.Ra7+–) 33.Re8 (33.Ra7 Bf8+–) 33...Bf8 34.Ra7 Rh3 1–0. market (2190) – Orla (1965),, 2002.

7.Nc3 e5 (7...Qc7 8.Be2 e5 9.Nh4 Nb6–/+; 7...0–0 8.0–0 e5 9.Bf5 e4–/+) 8.Bf5 e4 9.Ng5 Ne5 –/+.

7.Be2 a6 (7...0–0 8.c4 e5 9.d3 dc4+=; 7...e5 8.0–0 0–0 9.d3 a6+=) 8.Nc3 e5 9.ba6 ba6 +=.

6.Be2 Bd6

7.0–0 0–0 8.Nc3 Qc7 9.d4 c4 10.Qc1 Ng4 11.h3 Nh2 12.Nh2 Bh2 13.Kh1 Nf6?? (better is 13...Bd6=) 14.g3+– Bg3 15.fg3 Qg3 16.Rf3 Qh4 17.Qg1 e5? (better is 17...Ne4 18.Qg2 Ng5+–) 18.de5 Bh3 (18...Ne4+–) 19.Qg3 (19…Qg3 20.Rg3+–) 1–0. first – fluor6, Live Game Caissa's Web, 2004.

7.0–0 0–0 8.d3 Qc7 9.c4 a5 10.Nc3 b6 11.e4 Bb7 12.Qc2 Ne5 13.g3 Rad8 14.Ne1 de4 15.de4 Ne8 16.f4 Nd7 17.e5 Be7 18.Ne4 f5 19.ef6 gf6 (19...Nef6? 20.Ng5+–; worse is 19...Ndf6 20.Ng5 Bc8 21.Bg4+/–) 20.Nf3 Rf7 21.Rae1 Nf8 22.Bd3 Ng7 23.Ned2 Rd7 24.Be4 Be4 25.Ne4 Nf5 26.Nf2 Nd4 27.Bd4 cd4 28.Re4 Bc5 29.Nd3 Qb7 30.Nc5 bc5 31.Qd3 Rde7 32.Rfe1 Qb6 33.Rb1 Ng6 34.Ne1 (better is 34.Kh1!?+=) 34...f5+= 35.Re2 e5 36.fe5 Ne5 (worse is 36...Re5 37.Ng2=) 37.Qb3 Qe6 38.b6 Nf3 39.Nf3?? (39.Qf3 Qe2 Double attack (39...Qe2 Discovered attack; 39...Qe2 Decoy); 39.Nf3 Qe2 Discovered attack) 39...Qe2–+ 40.Re1 Qe1 (better is 40...a4 41.Re2 ab3 42.Re7 Re7 43.ab3 Rb7–+) 41.Ne1= Re1 42.Kf2 (42.Kg2 Re2 43.Kf1+=) 42...Ree7 (better is 42...Rfe7!? 43.Qf3 Kg7=) 43.Qb5+= f4 (43...d3!? 44.Qa5 Rd7+=) 44.Qc5+/– (44.Qa5?! fg3 45.Kg3 Rf6 46.Qa8 Kg7=) 44...fg3 45.Kg3 d3 46.Qc8 (46.Qa5 Re3 47.Kg4 Re4 48.Kg5+/–) 46...Kg7+/– 47.Qg4 Kf8 ½–½. Danek,Vaclav (1990) – Routner,Jakub (2160), CZE–chT2a, 2007.

7.0–0 b6 8.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

7.0–0 e5 8.d3 0–0 9.c4 dc4 +=.

7.Nc3 0–0 8.0–0 =+.

7.Nc3 b6 8.0–0 0–0 9.a3 =.

7.Nc3 b6 8.0–0 Bb7 9.d4 (9.a3 0–0=) 9...Rc8 (9...0–0 10.dc5 Nc5 11.Nd4=) 10.a4 (10.dc5 Nc5 11.Qd4 Qc7=+) 10...0–0=+ 11.Qd2 Qc7 12.h3 (12.Rfd1 cd4 13.Qd4 Ne5=+) 12...Ne4 (12...cd4 13.Qd4 (13.Nd4? Bb4–+) 13...Ne5 14.Ne1–/+) 13.Ne4= de4 14.Ne1 (14.dc5 Nc5 (< 14...Qc5 15.Ba3 Qd5 16.Qd5 Bd5 17.Bd6 ef3 18.Bf3+/–; 14...Bc5?! 15.Qc3 Nf6 16.Nd2=) 15.Qc3 f6=) 14...cd4 15.Bd4 e5 16.Bb2 Rfd8 17.c4 a5 18.Nc2 (18.Qc2 Bb4–/+) 18...Nc5 19.Qc3 Nd3 20.Bd3 ed3 21.Qd3 Qc4 22.Ne1 (22.Qc4 Rc4 23.Rfc1 Rdc8–/+) 22...Qb4 23.Qe2 Bb8 24.Nd3 Qe4 25.Ne1–/+ Bd5 26.f3 Qg6 27.Rf2 Bc4 28.Qc2 Qg5 29.e4 Be6 30.Qe2 Bh3 31.Nd3 Be6 32.Rff1 Bc4 33.Rfd1 Bd6 34.g4 Bc5 35.Kg2 h5 36.Bc1 Qh4 37.g5?? Bd3 38.Rd3 Rd3 39.Qd3 Qf2 40.Kh3 Bd4 41.g6 h4 42.gf7 Kf7 43.Qb3 Kf6 (44.Bg5 Kg5 45.f4 Qf4–+) 0–1. Hallila,Erkki – Kuhlmann,AEJ, corr ICCF TT–4–90 SF, 1995.

7.c4 0–0 8.cd5 ed5 9.0–0 Qe7 +=.

7.c4 a6 8.ba6 ba6 9.Nc3 0–0 =.

7.c4 dc4 8.Na3 Bc7 9.Nc4 a6 =.

7.c4 e5 8.cd5 e4 9.Nh4 Nb6 +=.

7.c4 Qe7 8.0–0 0–0 9.d4 Rd8 =.

7.d4 0–0 8.0–0 b6 9.Ne5 Qc7 10.f4 Ne4 11.Nd2 Nd2 12.Qd2 f6 13.Nd7 Bd7 14.a4 Rac8 15.Ba3 Be8 16.Rac1 c4 17.Bd6 Qd6 18.c3 Bg6 19.g4 Be4 20.Bf3 ½–½. Praum – Griesbach, corr 8.DDR–t–cp B–fin, 1987.

7.0–0 e5=+

8.Nc3 Qc7 =+.

8.c4 d4 9.d3 Nf8 10.e4 Ng6 11.Bc1 0–0 12.a4 Ne8 13.Ne1 f5 14.ef5 Bf5 15.Bf3 Qe7 Black prepares e4 16.Nd2 Nf6 Black plans e4 17.g3 e4 18.de4 Ne4 19.Ng2 (better is 19.Ne4!? Be4 20.Be4 Qe4 21.Qd3 Qd3 22.Nd3+=) 19...Nc3–+ 20.Qe1 Ne5 21.Nf4 Nf3 22.Nf3 Be4 23.Nd2 Bf4 24.gf4 Rf4 25.f3 Qg5 26.Kh1 Bd3 27.Rf2 (27.Qe6 Rf7 28.Re1 Qf4–+) 27...Qf5 28.Bb2 Rf8 29.Qe7 Qf7 (29...Qc8!? 30.Rg2 R8f7 31.Qe1–+) 30.Qc5 Ne4! 31.Qd4 (31.Ne4 Be4 Combination; 31.fe4 Rf2 Pinning (31...Rf2 Deflection; 31...Be4 Decoy)) 31...Nf2 32.Qf2 Bc4 33.Rg1 g6 34.Qe3 Bd5 35.Qc3 Qf6 (35...Bf3? 36.Nf3 Qf6 37.Qf6 R8f6 38.Bf6 Rf3 39.Bd4+–) 36.Qc1?? (better is 36.Qf6 R8f6 37.Bf6 Rf6 38.Re1+=) 36...Rf3–+ 0–1. Bender – Huehnel, postal, 1985.

8.c4 e4 9.Nh4 Nb6 10.Qc2!? =+.

8.c4 e4 9.Nh4 Nb6 10.cd5 Nbd5?! 11.d3 =+.

8.d4 cd4 9.ed4 e4 10.Nfd2 Qc7 11.g3 Nb6 12.Ba3 (12.a4 0–0=+) 12...Ba3 13.Na3 Qe7 (13...Qd6 14.Nab1=+) 14.Nab1 (14.Qc1 Be6=+) 14...e3 (better is 14...0–0=+) 15.Nf3? (better is 15.Nb3!?=+) 15...Bh3 (better is 15...ef2 16.Rf2 Ng4–+) 16.Re1?? (better is 16.Ne5 Bf1 17.Qf1–+) 16...ef2 17.Kf2 (17.Kh1 fe1R 18.Qe1–+) 17...Ng4 18.Kg1 Qe3 19.Kh1 Nf2 20.Kg1 Nd1 21.Kh1 Nf2 22.Kg1 Nd3 (23.Kh1 Ne1 24.Ne1 Qe4 25.Nf3 Qe2 26.c4 Qg2#; 22...Ne4 23.Kh1 Qf2 24.Bf1 Qf3 25.Kg1 Qf2 26.Kh1 Bg2 27.Bg2 Qe1 28.Bf1 Qf1#) 0–1. Richard,Andy – Hildenbrandt,Phil, M–1262.2, 1997.

8.d4 cd4 9.ed4 e4 10.Nfd2 Qc7 11.h3 0–0 =+.

6.Be2 Be7

7.0–0 0–0 8.a4 b6 9.c4 a5 10.d4 Bb7 11.Nbd2 Ne4 12.cd5 Bd5 13.Ne4 Be4 14.Nd2 Bb7 15.Bf3 Bf3 16.Qf3 Bf6 17.Ne4 cd4 18.Nf6 Qf6 19.Qg4 Rfd8 20.Rfd1 Ne5 21.Qe4 de3 22.Be5 Qf2 23.Kh1 Rd1 24.Rd1 Rf8 25.Bg3 Qa2 26.Re1 f5 27.Qe3 Qa4 28.Qe6 Kh8 29.Qf5 1–0. Urbanec – Drapal, 1965.

7.0–0 0–0 8.c4 Re8 9.Nc3 b6 10.Qc2 Bb7 11.cd5 ed5 12.d4 Bd6 13.Rfe1 Rc8 14.Rad1 Qc7 15.g3 cd4 16.Rd4 Ne4 17.Rc1 Ndf6 18.Qb3 Nc3 19.Qc3 Qc3 20.Rc3 Rc3 21.Bc3 Rc8 22.Be1 Bc5 23.Ra4 Ra8 24.Bb4 Ne4 25.Ne5 ½–½. Larsen,Andreas – Schmitz,Norbert, NNM Klasse, 1997.

7.c4 0–0 8.0–0 Nb6 9.Ne5 Bd6 10.f4 Bd7 11.a4 a6 12.a5 Nc4 13.Nc4 dc4 14.b6 Bb5 15.Na3 Be7 16.Bc4 Bc4 17.Nc4 Qd5 18.Qe2 Rfd8 19.Rfd1 Qd3 20.Qd3 Rd3 21.Ra3 Rad8 22.Rd3 Rd3 23.Kf1 Ng4 24.Ke2 Rd8 25.h3 Nf6 26.d4 cd4 27.Bd4 Rd4 28.Rd4 Nd5 29.Kf3 Bf6 30.Rd2 Be7 31.e4 Bb4 32.Rd4 Bc5 33.Rd3 Bb4 34.ed5 ed5 35.Na3 1–0. Buczinski – Pawlowski, Siemianowice Slaskie 1965.


6.a4 0–0 7.Be2 Nbd7 8.0–0 b6 9.Na3!? Bb7 10.c4 Qc7 11.Rc1 Rac8 12.Qc2 (12.cd5 ed5 13.Nd4 (idea Nf5) 13...Ne4 14.Nf5 Ndf6) 12...Bd6 13.h3 Rfe8 (13...Ne4!?) 14.Rfd1 (14.cd5 ed5 15.Qf5) 14...Qb8 15.cd5 ed5 (withdraw) 0–1. Kukula – Gross, corr 3GMM½–06 1997–98 (Gross).

6.a4 a5 7.Be2 b6 8.Nc3 Bb7 9.d3 Nbd7 10.0–0 Qc7 11.h3 h6 12.Nb1 0–0–0 (12...0–0 13.c4+=) 13.Nbd2= Kb8 (13...e5 14.d4 ed4 15.ed4=) 14.c4+= Ka7 15.Rc1 Rhg8 16.cd5 ed5 17.Nd4 Nb8 18.Nf5 Ne8 (18...Qd7 19.Ne7 Qe7 20.Re1+/–) 19.d4 c4 20.Ne7 Qe7 21.e4! Nc7 (21...de4 22.Rc4 Deflection) 22.ed5+– Nd5 23.Rc4 (23.Nc4?! Nf4 24.Bf3 Bf3 25.Qf3 Ne2 26.Kh2 Nc1 27.Rc1 Qb7+=) 23...Rge8 24.Bf3 f5 (24...Nf4 25.Qb3+–) 25.Qc2 Rc8?? (better is 25...Qg5+–) 26.Bd5 Rc4 27.Bc4 (27.Nc4?! Bd5 28.Ne5 Qg5+–) 27...Rc8 28.Qf5 Nd7 29.Qd3 (29.Rd1 Nf6+–) 29...Nf6 30.Ba3 Qc7 31.Re1 Ka8 (31...Rd8 32.Re7 Rd7 33.Qe3+–) 32.Re7 Qf4 33.d5 Rd8 34.d6 Qg5 (34...Kb8 35.Be6 Ka8 36.Nc4+–) 35.f3 (35.Nf3 Qf4 36.Rb7 Kb7+–) 35...Ne8 (35...Nd7 36.Ne4 Qh5 37.Be6+–) 36.Ne4 Qh4 (36...Qe7 37.de7 Rd3 38.Bd3 Bc8+–) 37.Qe3 Nf6 38.Qb6 Qe1 39.Kh2 Rb8 (39...Rd7 40.Nf6 Bc6 41.Qc6 Kb8 42.Nd7 Ka7 43.Bc5) 40.Bc5 Ne4 (40...Qh1 41.Kh1 Ne4 42.Qa7) 41.Qa7 1–0. Janek – Henry, internet, 2016.

6.a4 b6 7.Be2 Bb7 8.0–0 Nbd7 9.Na3 0–0 10.c4 Qc7 11.Rc1 e5 12.cd5 Bd5 13.d4! e4 14.Ne5 Rad8! 15.Nec4 cd4? 16.ed4! Qb7 17.Ne3 Rc8 18.Nf5 Bb4 19.Nc4 g6 20.Nfd6 Bd6 21.Nd6 Rc1 22.Qc1 Qb8 23.Ba3 Rd8 24.Qg5 Be6 25.f4! Kg7? 26.f5 h6 27.Qg3 Bd5 28.fg6 fg6 29.Nf5 Kh7 30.Bd6 Qb7 31.Ne7 Bf7 32.Bc4! Be8 33.Be5 Rc8 34.Nc8 Qc8 35.Be6 Qd8 36.Bf6 Nf6 37.Qe5 Kg7 38.Rc1 h5 39.Rc8 1–0. Schiffler – Braun, corr 1950.

6.a4 Nbd7 7.c4 0–0 8.Be2 dc4 9.Na3 Nb6 (9...c3!? 10.Bc3 b6=) 10.Nc4+= Nc4 11.Bc4 b6 12.0–0 Bb7 13.Ne5 Rc8 14.a5 Bd6 (14...ba5 15.d3=) 15.ab6 ab6 16.f4 Bb8 (16...Ra8 17.Nc6 Qd7 18.Bf6 gf6 19.Qg4 Kh8 20.Qh4+/–) 17.Ng4 (17.Qe2 Be5 18.Be5 Qd7+/–) 17...Ne8 (17...Ne4 18.d3 Nd6 19.Ne5+=) 18.f5 (18.Qc2 Qh4 19.Ne5 Nf6+=) 18...ef5 (18...Bd5!? 19.Bd5 Qd5+=) 19.Rf5+/– Qh4? (19...Kh8!?+/–) 20.Ra4+– Be4?? (better is 20...Kh8 21.Bf7 Qd8+–) 21.Rf7! Rf7 (21...Rf7 22.Bf7 Double attack (22.Be6 Decoy)) 22.Bf7 Kf7 (22...Kh8 23.Re4 Bh2 24.Kf1+–) 23.Re4 Bh2 (23...Qg5 24.Qf1 Kg8 25.Qc4 Kf8 26.Be5 Be5 27.Ne5+–) 24.Kf1 Kf8 (24...Kg8 25.Nf6!! Qf6 26.Bf6 Nf6+–) 25.Qf3 (25.Qf3 Kg8 26.Qf5+–) 1–0. Nikishin,Sergey (2050) – Badalyan,Vazgen, Chess Tournament, 2012.

6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7).

6.d3 Qa5 7.Nbd2 Qb5 8.Be2 Qa5 9.0–0 0–0 10.c4 Qc7 11.cd5 ed5 12.e4 d4 13.Nc4 b5 14.e5 Nd5 15.Nd6 Bd6 16.ed6 Qd6 17.Qd2 Nd7 18.Qg5 f6 19.Qd2 Bb7 20.g3 Rfe8 21.Rfe1 Ne5 22.Nh4 Ne7 23.Qf4 Qd5 24.f3 g5 25.Qf6 gh4 26.Qh4 Nf3 27.Bf3 Qf3 28.Qg5 Kh8 0–1. Ramm – Weller, Hauenstein Pfalz 1991.

6.Be2 Bd7 7.c4 0–0 8.d3 Qc7 9.Na3 a6 10.ba6 (10.Qa4!?=) 10...Na6 11.0–0 Nb4 0–1. mgilbert (2375) – workchess (2220), net–, 2015.

6.Be2 Nbd7 7.0–0 0–0 8.c4 b6 9.a4 a5 10.Qc2 Ne4 11.d3 Nd6 12.Nbd2 Bf6 13.Rfd1 Bb7 14.Rac1 Qe7 15.Ba3 dc4 16.Nc4 Nc4 17.Qc4 Bf3 18.Bf3 Ne5 19.Qe4 Nf3 20.Qf3 Rad8 21.h3 Rd5 22.d4 Rfd8 23.dc5 Rd3 24.Rd3 Rd3 25.Qa8 Qd8 26.Qd8 Bd8 27.cb6 Bb6 28.Kf1 f6 29.Bc5 Bc5 30.Rc5 Ra3 31.b6 1–0. Strebel – Stassen, Wallertheim 1992.

6.c4 0–0

7.a4 b6 8.Be2 Bb7 9.0–0 a5 10.d4 Nbd7 11.Nc3 Rc8 12.cd5 ed5 13.Qb3 Re8 14.Rad1 c4 15.Qc2 Bd6 16.Rfe1 Qc7 17.Bf1 Ne4 18.g3 Ndf6 19.Bh3 Rcd8 20.Rf1 Bc8 21.Bg2 Bg4 22.Rc1 Qc8 23.Ne4 Ne4 24.Ne5 Bf5 25.Qd1 f6 26.Nc6 Rd7 27.g4 Bg6 28.f3 Ng5 29.h4 Ne6 30.f4 Nc7 31.f5 Bf7 32.Qf3 Na6 33.g5 Nb4 34.Qg4 Re3 35.g6 Be8 36.Rc3 Rc3 37.Bc3 Bf8 38.Qe2 hg6 39.fg6 ½–½. Myers – Riego, Lugano 1968.

7.Qc2 b6 8.Be2 (8.Ng5 Re8=) 8...Bb7 9.d3 a6 10.a4 Nbd7 (10...dc4 11.Qc4 Bd6 12.0–0+=) 11.Nc3 (11.Na3 ab5 12.ab5 Bd6=) 11...a5 (11...d4 12.ed4 cd4 13.Nd4 Bg2 14.Rg1+=) 12.0–0–0 (12.0–0 Bd6=) 12...Ng4 (12...Bd6 13.h3+=) 13.Rdf1 dc4 14.dc4 Bg5 (14...Qc7 15.h3 Nge5 16.Ne5 Ne5 17.f4=) 15.Ng5 Qg5 16.Bf3 Rab8 (16...Bf3 17.gf3 Ngf6 18.Ne4=) 17.Bb7 Rb7 18.Ne4 Qe7 19.h3 (19.Rd1 Rd8=) 19...Ngf6 (19...Nh6 20.Rd1=) 20.Ng5 (20.Rd1 Ne4 21.Qe4 Rc7+=) 20...h6 (20...e5 21.Ne4=) 21.Nf3 e5 22.g4 e4 23.Nh4 (23.g5 ef3 24.gf6 Nf6=) 23...Ne5+= 24.Nf5 Qe6 25.Rd1 (25.Be5 Qe5 26.Rd1 Qa1 27.Kd2 Rd7 28.Ke2 Qe5+=) 25...Nd3 26.Kb1 Rd7 (26...Rd8 27.f3+=) 27.f4 Rfd8 (better is 27...Nb2 28.Kb2 Rfd8+=) 28.g5?? (28.Ng7 Kg7 29.g5 hg5 30.fg5 Nb2 31.gf6 Qf6 32.Rhg1 Kf8 33.Rd7 Rd7 34.Qb2 Qb2 35.Kb2 Rd2 36.Kc1–/+) 28...Qf5 (28...Nb2!? 29.Rd7 Nd7 (worse is 29...Rd7 30.Nh6 gh6 31.gf6–/+; 29...Qd7?! 30.Nh6 gh6 31.gf6=) 30.Ng7 Kg7 31.gh6 Qh6 32.Kb2 f5–+) 29.gf6–/+ g6 30.Ba1 (30.Rd2 Nb2 31.Rd7 Qd7 32.Kb2 Qd6–/+) 30...Qe6 (better is 30...Nb4 31.Rd7 Qd7–+) 31.Rhf1 (better is 31.Rd2!?–/+) 31...Nb4 32.Rd7 Qd7 (32...Nc2 33.Rd8 Kh7 34.Bb2 Ne3 35.Rc1–+) 33.Qc3 (better is 33.Qe4 Qd2 34.Bb2–+) 33...Qh3 34.Re1 (34.Rc1–+) 34...Qg2 35.Bb2 (35.Qb3 Rd3 36.Qb2–+) 35...Rd3 36.Qc1 Rd2 (better is 36...Rb3 37.Rd1 Nd3–+) 37.Rd1 (37.Qc3 Rb2! 38.Qb2 Qb2 39.Kb2 Nd3 40.Kc3 Ne1 41.Kd2–+) 37...Rc2 38.Rd8 Kh7 39.Qd1 Rb2 40.Ka1 Ra2 0–1. Diviak,Rudolf (1850) – Barca,Michal (1825), liga 3A2, 2013.

7.Nc3 Nbd7 8.h4 Nb6 9.d3 Ng4 10.Be2 f5 11.cd5 Nd5 12.Qb3 Bf6 13.Rc1 b6 14.d4 Nde3 15.fe3 Ne3 16.dc5 Ng2 17.Kf1 Ne3 18.Kf2 Bd4 19.c6 Kh8 20.Na4 Ng4 21.Ke1 Be3 22.Rd1 Qc7 23.Ne5 Bf2 24.Kf1 a6 25.Nd7 ab5 26.Nf8 ba4 27.Ne6 Be6 28.Qe6 Bc5 29.Rd7 Qf4 30.Kg2 Bf8 31.Bd4 1–0. Kuhlmann – Blees, 1986.

7.Nc3 Ne4 8.Qc2 Bf6 9.Bd3 Nc3 10.Bc3 h6 11.0–0 dc4 12.Bc4 Nd7 (58.) 0–1. Szeligowski – Wilkinson, Colorado 1979.

7.cd5 Nd5 8.Bc4 b6 9.Nc3 Nf6 10.0–0 Bb7 11.a4 Nbd7 12.Bd3 Bf3 13.gf3 Ne5 14.Be2 Qc7 15.f4 Ng6 16.f3 Rad8 17.Qe1 Nh5 18.Ne4 h6 19.Kh1 f5 20.Ng3 Bh4 21.Rg1 Qd7 22.Bc3 Qd5 23.Qc1 Ng3 24.hg3 Bf6 25.Rd1 Kh7 26.Kg2 e5 27.Rh1 ef4 28.Bf6 Rf6 29.Rd1 fg3 30.Bc4 Qb7 31.d4 Nh4 32.Kg1 Nf3 33.Kf1 cd4 34.ed4 Nd4 35.Kg1 Rfd6 36.Rd4 Rd4 37.Qc2 Qf3 38.Rf1 Qe3 39.Kh1 Rh4 0–1. Wittner – Donkoff, Hockenheim 1994.

7.Be2 Ne4 8.0–0 Bf6 9.Qc2 Nd7 10.d4 b6 11.Bd3 Bb7 12.cd5 ed5 13.Nc3 Re8 14.Rfd1 g6 15.dc5 Ndc5 16.Be4 Ne4 17.Ne4 Bb2 18.Qb2 Re4 19.Nd4 Qf6 20.Rac1 Re7 21.Qb3 Qg5 22.Nc6 Rd7 23.Rc3 Bc6 24.bc6 Rc7 25.Qd5 Qd5 26.Rd5 Rac8 27.Rd6 Kf8 28.e4 Re8 29.f3 Re6 30.Re6 fe6 31.e5 b5 32.Kf2 b4 33.Rc4 a5 34.Ke3 a4 35.Kd4 a3 36.Kc5 b3 37.ab3 Ra7 38.Rc1 a2 39.Ra1 1–0. Gappel – Boebber, DDR.

7.Be2 Re8 8.Qc2 (8.d4 Nbd7=) 8...Bf8 (8...a6 9.Nc3=) 9.d4 Nbd7 10.Nbd2 (10.dc5 Nc5 11.0–0 a6=) 10...b6 (10...cd4 11.Bd4 Qc7 12.Rc1=) 11.0–0 Bb7 12.Rac1 Rc8 (12...a6 13.dc5 Nc5 14.cd5 Nd5 15.Bd4=) 13.dc5 Nc5 14.Rfd1 Qc7 (14...Qe7 15.cd5 Bd5 16.Bf6 Qf6 17.Bc4=) 15.cd5 (15.Bf6 gf6 16.cd5 Bd5+=) 15...Nd5 16.Nb3 Qb8 (16...Nb4 17.Qb1+=) 17.Nc5 Bc5 18.Ng5 g6 (18...f5 19.Bc4 Bd6 20.Ne6 Bh2 21.Kh1+–) 19.Qa4+/– h6 20.Ne4 (20.Qh4 Bf8+/–) 20...Be7+= 21.Rc8 Rc8 22.Rd5 ed5 23.Qd4 f6 24.Nf6 Bf6?? (24...Kf7 25.Nd5 Qd6 26.Qg7 Ke8 27.Ne7 Qe7 28.Qg6 Qf7 29.Qh6 Rc5 30.Qh8 Qf8 31.Bh5 Rh5 32.Qh5 Qf7 33.Qh8 Kd7 34.Qh3 Kd6 35.Ba3 Kc7 36.Qg3 Kc8 37.Qg4 Kd8 38.Qg5 Kc8+–) 25.Qf6 Qc7 (25...Rc1 26.Bc1 Qf8 27.Qg6 Qg7 28.Qe8 Qf8+–) 26.Qg6 Kf8 1–0. zack1984 (2040) – wwgia (1710),, 2016.

7.Be2 a6

8.a4 ab5 9.ab5 Ra1 10.Ba1 b6 11.0–0 Bb7 12.cd5 Bd5 13.d3 Nbd7 14.Nbd2 Bf3 (14...Qc7 15.Qc2=) 15.Bf3 Nd5 16.Qb3 Nb4 17.Nc4 Bf6 18.d4 Qc7 19.Bb2 Nd5 20.Rc1 Rc8 21.g3 cd4 22.ed4 Bg5 (22...Qd8 23.Ne3 Ne7 24.Rc8 Nc8 25.Nc4=) 23.Rc2 (23.Ne3!? Qc1 24.Bc1 Rc1 25.Kg2+/–) 23...Qb8 (23...Qd8 24.Nd6 Rc2 25.Qc2=) 24.Ba3+= N7f6 25.Bd6 Qa8 (25...Qa7!?+=) 26.Ra2+/– Qb7 27.Be5 (27.Ra6 Ne8 28.Rb6 Qa7+/–) 27...Rd8 (27...Qe7 28.Bg2+=) 28.h4 Bh6 29.Ra6 Nd7 (better is 29...Qe7!?+/–) 30.Nd6+– Qc7 31.Bd5 ed5 32.Qd5 Ne5 33.de5 g6 (33...Rf8 34.e6 Qd8 35.Ra7 fe6 36.Qe6 Kh8 37.Re7+–) 34.Ra8 (better is 34.Rb6! Rd7 35.e6+–) 34...Ra8 35.Qa8 Bf8 36.Kg2 Qc5 37.f4 Qc2 38.Kh3 Qd1 39.Kh2 (39.Qe8 Qd5 40.Qc6+/–) 39...Qd2 40.Qg2 Qd3 41.Ne4 Qb5 42.Qa2 (42.Nf6 Kg7 43.h5 gh5+–) 42...Be7 43.e6 (43.Nd6!? Bd6 44.ed6+=) 43...Qf5= 44.ef7 Qf7 45.Qa8 Kg7 46.Qc6 Qa2 47.Kh3 Qa1 48.Kg2 Qa2 49.Kf3 Qb3 50.Ke2 Qb2 51.Kd3 b5 52.Qc7 Qb1 53.Kd4 Qb2 54.Kd5 Qb3 55.Ke5 Qf7 56.Qb6 (56.Kd4 b4=) 56...b4+= 57.g4 White prepares f5 (57.Kd4 b3+=) 57...b3 (57...h5 58.g5–/+) 58.f5 (58.h5 b2 59.f5 gh5 60.gh5 Bf6 61.Nf6 Qe7 62.Kd5 Qf6 63.h6 Kf7 64.Qb7 Ke8 65.Qb5 Ke7 66.Qb7 Kd8 67.Qa8 Kc7 68.Qa7 Kc8 69.Qa8 Kd7 70.Qb7 Ke8 71.Qb5 Kf8 72.Qb8 Ke7 73.Qb7 Ke8=) 58...b2 59.Kf4= Bh4 60.Qb2+= Bf6 61.Qb6 Qe7 62.Qa5 Qd8 63.Qa7+= Qe7 64.Qb8 Qd8 65.Qb7 Qe7 66.Qd5 Qc7 67.Kf3 Qe5 68.Qd7 Kg8 69.Qe6 Kg7= 70.Qd7 Kg8 71.Ke3 gf5= 72.gf5 Qe7 73.Kf3+= Qa3 74.Kg4 Qe7 75.Qc8 Kg7 76.Qc4 Qd8 77.Qc2 Qe7 78.Qg2 Kf8 79.Qh1 Kg7 80.Qb1 Qe5 81.Ng3 Qd4 82.Kh3 Qb2 83.Qd3 Qd4 84.Qb5 Qe5 85.Qb7 Qe7 86.Qc6 Qe3= 87.Kg4 Qd4 88.Kh3 Qe3 89.Qc7 Qe7 90.Qc1 Qf7 91.Kg4 Qe7 92.Nh5 Kf8 93.Qc4 Qd6 94.Qc8 Kf7 95.Qb7 Qe7 96.Qd5 Kf8 97.Nf4 h5 98.Kh5+/– Qf7 99.Ng6 Kg7 100.Qa8 Bd8 101.Qc8 Qf6 102.Qd7 Qf7 103.Qd4 Qf6 104.Qg4 Kf7 105.Qf4 Kg8 106.Kg4 Qc6 107.Qg3 Qe4 108.Nf4 Kf8 109.Qc3 Kg8 110.Qc8 Qd4+/– 111.Qe6 Kf8 112.Qh6 Kg8 113.Qe6 Kf8 114.Kf3 Qd1 115.Ne2 Qf1 116.Kg4 Qg2 117.Ng3+– Qd2 118.Qe5 Qd1 119.Ne2 Qa4 120.Kf3 Qb3 121.Kg2 Qb7 122.Kf2 Bh4 123.Kf1 Qf3 124.Kg1 Bf2 125.Kh2 Be3 126.Ng3 126...Bf4= 127.Qf6 Ke8 128.Qg6 Kf8 ½–½. Drazic,Sinisa (2420) – Piotrowski,Przemyslaw (2185), 26th Cracovia Open A, 2015.

8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.0–0 Qc7 12.Qb3 b6 13.d4 Bb7 14.Nbd2 Ra8 15.Bb2 cd4 16.Bd4 dc4 (16...e5!? 17.Bc3 Bd6+=) 17.Qc4= Qc4 (17...Bc5 18.Rd1=) 18.Nc4 Nd5 (18...Ra2 19.Bd3=) 19.Ra1 (19.Nfe5 Ne5 20.Be5 Bc5=) 19...Ra1 20.Ba1 Bf6 (20...f6 21.Nd4 Nc7 22.Nc6=) 21.Nfe5 (21.Bf6 N5f6 22.Nd6 Bd5+=) 21...Ne5= 22.Ne5 (22.Be5 Be5 23.Ne5 Nc3=) 22...Ne7 (22...Nb4 23.Bb2=) 23.Bd4 (23.Bh5 Be5 24.Be5 Nc8+=) 23...Nf5= 24.Bb2 Ne7 (24...h6 25.g4 Nh4 26.f4=) 25.f4 (25.Bh5 Ng6 26.Bg6 hg6+=) 25...Ng6 26.Nc4 Bd5 (26...Bb2 27.Nb2 e5 28.Bh5+=) 27.Bc1 (27.Bf6 Bc4 28.Bc4 gf6+/–) 27...Bc4 (27...Be7 28.Nb6 Nf4 29.Nd5 Ne2 30.Kf2 ed5 31.Ke2+/–) 28.Bc4+= Be7 (28...Kf8 29.Kf2+=) 29.Kf1 Bc5 30.Ke2 Kf8 31.Bb2 (31.g4 e5+=) 31...h5 (31...Nh4 32.g4+=) 32.g3+/– Ne7 33.e4 Ng8 34.Kf3 Nf6 (34...Ne7 35.Be2+/–) 35.h3 (35.Bf6 gf6 36.h4 Kg7+/–) 35...Ke7 36.g4 hg4 37.hg4 Ne8 38.Bd3 f6 (38...Nf6 39.g5 Ne8 40.Kg4+/–) 39.e5 fe5 40.Be5 Kf7 41.Bb2 (41.Bc3 Nf6+/–) 41...Nd6 42.Kg3 Nc8 43.Kh4 (43.f5 ef5 44.gf5 Be7+/–) 43...Be7 (43...Bd6 44.f5 e5 45.g5+/–) 44.Kh5 (44.g5 g6+/–) 44...Bc5 (44...Bf6 45.Ba3+=) 45.Bg6 Kf8 46.Bc2 (46.g5 Ne7+/–) 46...Nd6 (46...Ne7 47.Be5+/–) 47.Kg6 Ne8 (47...Nb5 48.Bg7 Ke7 49.Bf6 Kf8 50.g5+–) 48.Bb3 Ke7 49.g5 (49.f5 ef5 50.gf5 Kf8+/–) 49...Be3 (49...Bd6!?+/–) 50.Be5+– Bc5 51.Kh7 (51.Bg7 Ng7 52.Kg7 Be3+–) 51...Be3 (51...Bd6 52.Kg8+/–) 52.Kg8 (52.Bd1 Nd6+–) 52...Bd2 53.Bc2 Be3 54.Bg6 Nd6 55.Bg7 (55.Kg7!? Nc4 56.Bf6 Kd7+–) 55...Bf4+/– 56.Bf6 Kd7 57.Bd3 e5 (better is 57...Ne8+–) 58.Be2?? (better is 58.g6+–) 58...Ne4+= Attacks the isolani on g5 59.Bg4 (59.Kf7 Ng5 60.Bg5 Bg5+=) 59...Kd6–/+ 60.Bd8 (better is 60.Bf3!? Ng5 61.Bg5 Bg5 62.Kf7+=) 60...Bg5–+ (60...Ng5?! 61.Bb6 Ne4 62.Bd8=) 61.Bf3 Nc3?? (better is 61...Nd2 62.Bg5 Nf3–+) 62.Bg5+/– Nb5 63.Bd2 (63.Kf7 Nd4 64.Be4 Nc6+/–) 63...Nd4 (63...Ke6 64.Kg7+=) 64.Be4 Kc5 (64...Nb3 65.Bh6+=) 65.Kf7+/– b5? (better is 65...Kd6!?+/–) 66.Kf6+– Nc6 Black prepares the advance b4 (66...b4+–) 67.Be3 (better is 67.Ke6!? b4 68.Be3 Kb5 69.Kd5+–) 67...Kd6+/– 68.Kf5 (68.Bh6!?+/–) 68...b4 (68...Ne7 69.Kg4+=) 69.Kg4 (69.Bh1 Na5+=) 69...b3 (69...Ne7 70.Kf3+=) 70.Bc1 Nd4 71.Ba3 (better is 71.Bb2+=) 71...Kc7? (71...Ke6 72.Bb2 Nb5 73.Kf3+=) 72.Kg3 (better is 72.Kg5!?+–) 72...Kb6 (72...Ne2 73.Kg2+=) 73.Kf2+/– Kb5? (73...Kc7 74.Bb2+/–) 74.Bd3 (74.Bd6!? Nc6+–) 74...Ka4 (74...Kc6 75.Bb2 Kd5 76.Bh7+/–) 75.Bb2 (75.Bd6 Nc6 76.Be4 Na5+=) 75...Kb4 76.Ke3 Kc5 (76...Nc2!? 77.Ke4 Na3+=) 77.Ke4+– Nc6 (77...Kb4 78.Ke5 Nb5 79.Bf5+–) 78.Be2 (78.Ba3 Kb6+–) 78...Kd6 (78...Kb4 79.Kd5 Nd4 80.Bd3+–) 79.Bd1 (79.Ba3 Ke6+–) 79...Nd4 80.Kd3 (better is 80.Bg4!?+–) 80...Ke6+/– 81.Kc4 (81.Bg4 Kd5+/–) 81...Kf5+= 82.Bd4 (82.Bh5!?+=) 82...ed4= 83.Kd4 b2 ½–½. Fernandez,Daniel Howard (2470) – Arkell,Keith C (2435), PRO League Central, 2017.

8.a4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.0–0 Qc7 12.Nc3 Rd8 13.Na4 b6 14.Qc2 e5 15.cd5 Nd5 16.d4 Nb4 17.Qc3 Qa7 18.Qb3 e4 19.Nd2 Nf6 20.Bc4 Bf8 21.Bc3 Bf5 22.Ra1 Qb7 23.Nf1 Nbd5 24.Bb2 h6 25.Rd1 Nb4 26.dc5 Rd1 27.Qd1 bc5 28.Qd8 Nd7 29.Nd2 Qa7 30.Nc3 Nb6 31.Bf7 Kf7 32.Nce4 Be4 33.Ne4 Qd7 34.Qd7 Nd7 35.Kf1 Ke6 36.Nc3 Nb6 37.Ke2 g5 38.Ne4 Kd5 39.f3 Kc4 40.Be5 Kb5 41.Nd6 Ka4 42.Ne4 c4 43.Kd2 Kb3 44.Nc3 N6d5 45.Nd5 Nd5 46.e4 c3 47.Kc1 Ba3 0–1. J A Nielsen – Flarup, DK 1973.

8.a4 b6 9.0–0 Bb7 10.d4 Nbd7 11.Nc3 cd4 12.Nd4 Ne5 (12...ab5!? 13.ab5 dc4 14.Bc4 Ra1 15.Qa1 Qc8=) 13.cd5+= Nd5 14.Nd5 (better is 14.Ne6!? fe6 15.Nd5 Bd5 16.Be5 ab5 17.Bb5+/–) 14...Qd5= (worse is 14...Bd5 15.Ne6 fe6 16.Be5 ab5 17.Bb5+/–) 15.Bf3 Nf3 16.Nf3 (16.Qf3 Qf3 17.Nf3 Rfc8+=) 16...Qh5 (16...ab5 17.Qd5 Bd5 18.ab5–/+) 17.Rc1 (17.Nd4!? Qg5 18.Nc6=) 17...Rfd8 (17...ab5 18.ab5 Qb5 19.Rb1–/+) 18.Nd4–/+ Qg6 19.f3 e5 20.Rc7 (20.ba6 Ra6 21.Rc7 Bg5 (21...ed4?! 22.Re7 Bc6 23.ed4=) 22.Rb7 Be3 23.Kh1 Raa8–/+ (worse is 23...Bd4 24.Bd4 Raa8 25.Rb6 Rd4 26.Rg6 Rd1 27.Rd1 hg6 28.Ra1=; 23...ed4?! 24.Bd4 Raa8 25.Be3–/+)) 20...ed4 (better is 20...Bg5!? 21.Rb7 Be3 22.Kh1 ab5–+) 21.Bd4 Bf6 (better is 21...Ra7!? 22.Re7 Bf3 23.Rf3 Re7+=) 22.Rb7= Bd4 23.ed4 ab5 24.ab5 h6 25.Rf2 (25.Qb1 Qg5+=) 25...Qd6 (better is 25...Rd5=) 26.Qb3?? (26.Re2 Qf6 27.Re4 Rd5+=) 26...Qd4 (26...Ra1 27.Rf1 Qd4 28.Qe3 Qe3 29.Kh1 Rf1) 27.Qf7+/– Kh8 28.h3 (28.g3 Ra5+/–) 28...Ra1 (better is 28...Rg8!? 29.g4 Ra1 30.Kg2 Qd1=) 29.Kh2+/– Qe5 (29...Rd1!?+/–) 30.f4+– Qc3? (30...Qd4 31.Qg6+–) 31.Ra2 (better is 31.Rd2 Raa8 32.Rc2+–) 31...Rf1?? (better is 31...Ra2 32.Qa2 Qf6+/–) 32.Raa7 (32.Rd2 Ra8 33.Rd6+–) 32...Rg8?? (32...Ra1 33.Ra1 Qa1 34.Rb6 Rg8+–) 33.Rb6 Rh1 34.Kh1 Qe1 35.Kh2 Qh4 (35...Qe6 36.Qe6 Rd8 37.Qg6 Rd7 38.Rb8 Rd8 39.Rd8) 36.Rg6 1–0. mikebaldini (1660) – pitirre (1640),, 2014.

8.a4 b6 9.d3?! dc4 10.d4 cd4 11.ed4 Qc7 12.0–0 ab5 13.ab5 Ra1 14.Ba1 Bb7 15.Qa4 Bd5 16.Rc1 Nbd7 17.Nbd2 Qf4 18.Bc3 Ne8 19.Ne5 Qg5 20.Nef3 Qh6 21.Rb1 Nef6 22.Qc2 Qg6 =+. Jakubaszek – Tomtalski, corr Poland 1989–90 (Jakubaszek).

8.a4 dc4 9.Na3 Nbd7 10.Nc4 ab5 11.ab5 Ra1 12.Qa1 Nb6 13.0–0 Bd7 14.Nce5 Qa8 15.Nd7 Nbd7 16.Ne5 Nb6 17.Ng4 Nbd7 18.d4 Ng4 19.Bg4 cd4 20.Bd4 Bf6 21.Bf3 e5 22.Bb2 Qa1 23.Ba1 Nc5 24.Bd5 Ra8 25.Bc3 Ra4 26.Ra1 Ra1 27.Ba1 Kf8 28.Bc3 b6 29.g4 h6 30.h4 g5 31.hg5 hg5 32.Kf1 Ke7 33.Ke2 Bg7 34.Bb4 f6 35.Bc5 bc5 36.Kd3 Kd8 37.b6 Bf8 38.Bc6 Kc8 39.Kc4 Be7 40.Kd5 Kb8 41.b7 Kc7 42.Ke6 Bd8 43.Bd5 Kb8 44.Kf7 Ba5 45.Kf6 Be1 46.f3 Bd2 47.Kg5 Be3 48.Kf6 Bd4 49.Be4 c4 50.g5 c3 51.Kf7 1–0. Cubbitt – Foster, 1969.

8.a4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.0–0 Nb6 13.Be2 Nbd5 14.Nc3 Nc3 15.dc3 Qc7 16.c4 Nd7 17.Qc2 Bf6 18.Bf6 Nf6 19.Rd1 Rd8 20.Rd8 Qd8 21.Qd3 Qd3 22.Bd3 b6 ½–½. Sternik – Wojtunik, Olsztyn 1985.

8.a4 dc4 9.Bc4 Bd7 10.0–0 Ne4 11.Nc3 Nd6 12.Qb3 Nc4 13.Qc4 b6 14.Ne4 Qe8 15.Nc3 Qc8 16.h4 Be8 17.Qg4 f5 18.Qg3 Bf6 19.Rfc1 Qb7 20.Ne5 Nd7 21.Nc4 ab5 22.ab5 Rd8 23.Nd6 Qb8 24.Ne8 Qg3 25.Nf6 Nf6 26.fg3 Rd2 27.Na4 Nd5 28.Bc3 Rd3 29.Kf2 Re3 30.Ra2 Ra8 31.Rca1 Ra4 32.Ra4 Rc3 33.Ra7 Rb3 34.Re1 Rb5 35.Re6 Kf8 36.Rd6 Ne7 37.Rd8 Kf7 38.Rdd7 Ke6 39.Re7 Kd5 40.Rg7 c4 41.Rgd7 Kc5 42.Rac7 Kb4 43.Rd1 1–0. Majdziuk – Fojcik, Poland 1978.

8.a4 dc4 9.Bc4 Nbd7 10.Nc3 Qc7 11.0–0 Rd8 12.Qc2 a5 13.Ne4 h6 14.Ng3 b6 15.d3 Bb7 16.e4 Ng4 17.Nd2 h5 18.h3 h4 19.hg4 hg3 20.f4 e5 21.Qc3 Bf6 22.g5 Be7 23.fe5? Bg5 24.Rf7 Kh8 25.e6 Be3 26.Kf1 Bd4 27.Qc1 Rf8 28.Ke2 Rf7? 29.Qh1 Kg8 30.ef7 Kf8 31.Bd4 cd4 32.Qh4 Qd6 33.Rf1 Rc8 34.Qh8 Ke7 35.Qg7 Nf8 36.Qg5 Kd7 37.Qf5 Ke7 38.Qg5 Kd7 39.Rf6 Qe7 40.Qf4 Rc4 41.Nc4 Qc5 42.Qf5 1–0. Nierle – Geisler, 1971.

8.a4 dc4 9.Bc4 Ne4 10.0–0 Nd6 11.Be2 ab5 12.ab5 Ra1 13.Ba1 Qb6 14.Nc3 Bd7 15.Qc2 Rc8 16.Rb1 Be8 17.Qb2 Bf6 18.Bd3 Nd7 19.Qc2 h6 20.h3 c4 21.Be2 Qa5 22.Nd4 Nc5 23.Qa2 Qa2 24.Na2 Bd4 25.Bd4 Nb3 26.Bc3 Bb5 27.Nc1 Nc1 28.Rc1 Ba6 29.Bb4 Rc6 30.Bf3 Rb6 31.Bc5 Rb2 32.Bd6 Rd2 33.Be5 f6 34.Bd4 Ra2 35.Rb1 b5 36.Bc6 Ra5 37.Bb6 Ra2 38.Bb5 Bb5 39.Rb5 c3 40.Rc5 c2 41.Kh2 Kh7 42.Kg3 Rb2 43.Bc7 Kg6 44.Kf3 h5 45.Rc3 Kf5 46.e4 Kg6 47.Bf4 Kf7 48.Bc1 Ra2 49.Ke2 f5 50.Kd2 Ra4 51.ef5 ef5 52.Rc2 Ra6 53.Ke3 g5 54.Bb2 Kg6 55.Rc7 Re6 56.Kf3 1–0. Blaszczak – Kadziela, VI Pilsudski Memorial Radom Poland 1992.

8.a4 Nbd7

9.0–0 ab5 10.ab5 Ra1 11.Ba1 Nb6 12.d3 h6 13.Nbd2 Qc7 14.Be5 Qd8 15.h3 Nfd7 16.Bb2 Bf6 17.Ba3 Re8 18.Qb3 Qc7 19.Rc1 Be7 20.Bd1 Bd6 ½–½. algernon (2560) – amikhlin (2530), net–, 2016.

9.0–0 dc4 10.Bc4 Nb6 11.Be2 ab5 12.ab5 Ra1 13.Ba1 Nfd5 14.d4 c4 15.Qc2 (15.Ne5 Bd7 16.e4 Nf4 17.Nc3 Qc7 18.Bg4 Bd6 19.Nd7 Qd7 20.d5=; 15.Qc1 Qc7 16.Ne5 Bd7 17.e4 Ra8 18.Bb2 Nf6 19.Nc3 Bb4 20.Qe3=; 15.e4 Nf4 16.Nc3 Qd6 17.Ne5 Rd8 18.Qc2 Ne2 19.Qe2 f6 20.Nc4=; 15.Nbd2 Qc7 16.Qb1 c3 17.Rc1 Ba3 18.Rc2 e5 19.Qb3 ed4 20.Nd4+/–) 15...Bd7 16.Bc4 (16.Nc3 Qc7= (16...Nc3 17.Bc3 Bb5 18.Ba5 Qd6 19.Qb1 Nd5 20.Qb5+–) 17.Ne5 Bd6 18.Rb1 Ra8 19.Bf3 Ra7 20.Bb2=; 16.e4 Nb4 17.Qc3 Qc7 18.d5 f6 19.de6 Be6 20.Nd4=) 16...Qc7 (16...Nc4 17.Qc4 Qa5 18.Bc3 Bb5 19.Rc1 Bc4 20.Ba5+=) 17.Bd3 (17.Nbd2 Bb5 18.Rc1 Nc4 19.Nc4 Rc8 20.Nfe5–+) 17...Qc2 18.Bc2 Bb5 (18...Ra8 19.Nbd2 Bb5 20.Rb1+=) 19.Rc1 g6 (19...Ra8 20.Nbd2+=) 20.e4 (20.Nc3=) 20...Nf4 21.Bd1 Nc4 22.g3 Ra8 (22...Nd3 23.Rc2+=) 23.Nc3= Nd3 24.Rb1 Na3 25.Rb3 Nc1 26.Ra3?? (better is 26.Rb2 Ba6 27.d5=) 26...Ra3–+ 27.Bb2? (better is 27.Nb5 Ra1 28.Kg2–+) 27...Rc3! 28.Bc3 Be2 29.Bc2 Bf3 30.Bb2 Na2 31.Bb3 Nb4 32.e5 Bd5 33.Bd1 Nd3 34.Ba1 b5 35.Kf1 Bc4 36.Kg2 b4 37.Kf3 b3 38.Bc3 Bb4 39.Bb4 (39.Bb3 Bb3 40.Bb4 Bd5 41.Ke2 Nb4–+) 39...Nb4 (39...b2 40.Bc2 Nb4 41.Bb1–+) 40.Ke3 (40.Bb3 Bb3 41.h3–+) 40...b2 (40...b2 41.Be2 Bd5–+) 0–1. Kamaletdinov,Farit (1970) – Sultanov,Hajiden, Astrakhan Championship Men, 2011.

9.d4 ab5 10.ab5 Ra1 11.Ba1 dc4 12.Bc4 cd4 13.Bd4 Qa5 14.Nbd2 Nb6 15.Bd3 Bd7 16.0–0 Bb5 17.Bb6 Qb6 18.Qb3 Qa5 19.Qb5 Qb5 20.Bb5 Nd5 21.Rb1 Nc3 22.Rb3 Rc8 23.Bc4 Ne4 24.Rb7 Nd2 25.Nd2 Bd6 26.g3 g6 27.Ne4 Bg3 28.hg3 Rc4 29.Nd6 1–0. Tilp – Lehmann, corr DDR 1987.

9.0–0 Qc7

10.Na3 a5 11.Rb1 A) 11...Bd6 12.d4 (12.d3 d4 13.b6 Qb8 14.ed4 cd4 15.Nb5 e5 16.Nd6 Qd6 17.Qb3 Nc5=) 12...cd4 13.Qd4 e5 14.Qh4 Nb6 15.cd5 Nfd5 16.Nc4 Nc4 17.Bc4 Nf6+=; B) 11...Rd8 12.cd5 (12.d3 Bd6 13.cd5 ed5 14.Rc1 Re8 15.Qc2 Rb8 16.Rfd1 Qd8 17.Bc3 Qb6=) 12...ed5 13.d3 Bd6 14.Rc1 Re8 15.Qc2 Rb8 16.Rfd1 Qd8 17.Bc3 Qb6=.

10.Na3 a5 11.Rc1 A) 11...b6 12.d4 (12.cd5 ed5 13.d3 Re8 14.d4 c4 15.Nb1 Ne4 16.Nc3 Ndf6 17.Ne4 Ne4=) 12...Bb7 13.dc5 Nc5 14.Be5 Qd8 15.cd5 Nd5 16.Nd4 Rc8 17.Nc4 f6=; B) 11...e5 12.d4 (12.d3 d4 13.Qc2 Nb6 14.Rce1 Bf5 15.e4 Bg4 16.Ng5 Bd7 17.Bc1 h6+=) 12...e4 13.Nd2 cd4 14.cd5 Qb8 15.Bc4 Ne5 16.h3 de3 17.fe3 Rd8=.

10.Na3 a5 11.Qc2 A) 11...Rd8 12.d3 (12.cd5 ed5 13.Rac1 Bd6 14.Rfe1 Re8 15.Nb1 Rb8 16.d3 b6 17.Nbd2 Ng4=) 12...Bd6 13.cd5 ed5 14.Rac1 Re8 15.Rfd1 Rb8 16.Bc3 Ng4 17.h3 Ngf6+=; B) 11...Bd6 12.d3 (12.Rab1 d4 13.b6 Qb8 14.ed4 cd4 15.Nb5 e5 16.Rfc1 Nc5 17.Re1 Re8=) 12...Rb8 13.Rfe1 Rd8 14.cd5 ed5 15.h3 Re8 16.Rac1 Qb6 17.Bc3 Bc7=.

10.Na3 a5 11.d3 b6 (11...Bd6 12.Qc2 (12.Qb3 Re8 13.Rac1 b6 14.cd5 ed5 15.Qc2 Bb7 16.Rfd1 Rac8 17.Qd2 Qb8=) 12...Rb8 13.Rfe1 Rd8 14.cd5 ed5 15.Rac1 Re8 16.Qd2 b6 17.Rc2 Ng4=; 11...Re8 12.Rc1 (12.Rb1 Bd6 13.d4 cd4 14.Qd4 e5 15.Qh4 d4 16.ed4 ed4 17.Bd3 Nc5+=) 12...e5 13.cd5 Nd5 14.Nc4 Bf6 15.Nfd2 b6 16.Ne4 Rd8 17.Bg4 Nf8+/–) 12.Rc1 (12.Qc2 Bb7 13.Rac1 Rad8 14.cd5 Bd5 15.e4 Bb7 16.Nc4 Rfe8 17.Nfe5 Rf8+=) 12...Bb7 13.Nb1 (13.cd5 Nd5 14.Nc4 Rad8 15.Re1 Bf6 16.Bf6 N5f6 17.d4 Ng4=) 13...Rad8 (13...dc4 14.d4 Rfd8 15.Bc4 Rac8 16.Nbd2 Bd6 17.dc5 Nc5=) 14.Nbd2 (14.cd5 Bd5 15.Nbd2 Bd6 16.e4 Bb7 17.Qc2 Ng4=) 14...Ng4 (14...Bd6 15.cd5 Bd5 16.e4 Bb7 17.Qc2 Ng4=) 15.h3 (15.cd5 Bd5 16.e4 Bb7 17.h3 Ngf6=) 15...Nge5 (15...Ngf6 16.cd5 Bd5 17.Qc2 e5=) 16.Ne5 (16.cd5 Nf3 17.Bf3 ed5=) 16...Ne5 17.Nf3 (17.cd5 Rd5=) 17...Ng6 (17...d4=) 18.Qc2 e5 Black prepares d4 19.e4 d4 20.Nh2 Bg5 21.Rce1 Bc8 22.Bc1 Bf4 23.Bf4 Nf4 24.Bg4 Ne6 25.Qd2 g6 26.g3 (26.Be6 Be6 (worse is 26...fe6 27.Qg5+/–) 27.f4 ef4 28.Rf4 f5=) 26...f5 (26...h5 27.Be6 Be6 28.g4=) 27.Bf3 (27.ef5!? gf5 28.Bf3=) 27...f4+= 28.Bg2 Ng5 29.h4 Nh3 30.Kh1 g5?? (30...Qe7 31.Nf3+=) 31.Nf3?? (better is 31.g4 Nf2 32.Qf2+–) 31...g4+= 32.Bh3 gh3 (32...gf3 33.Kh2+=) 33.Kh2 Bg4 34.Ng1 Qd7 35.Rb1 (35.f3!? Be6 36.gf4 ef4 37.Ne2=) 35...Rf7 36.Qe1 Rdf8 37.Rb2? (better is 37.f3+=) 37...fg3–+ (37...fg3 38.Kg3 Rf3 39.Kh2 Rd3–+) 0–1. algernon (2565) – sbeaulieu (2500), net–, 2014.

10.Na3 a5 11.d4 A) 11...Qd6 12.cd5 (12.dc5 Nc5 13.cd5 Nd5 14.Nc4 Qc7 15.Be5 Qd7 16.Rc1 Rd8 17.Bd4 Qe8+=) 12...Qd5 13.Qc2 cd4 14.Nd4 Qe4 15.Bd3 Qh4 16.Nf3 Qh5 17.Rad1 Rd8+=; B) 11...cd4 12.Bd4 (12.Nd4 Bd6 13.Nf3 e5 14.h3 e4 15.Nd4 Nc5 16.Rc1 Rd8 17.cd5 Nd5=) 12...Ba3 13.Bf6 Bb4 14.Bb2 dc4 15.Rc1 Nb6 16.Qd4 e5 17.Ne5 Bc5+=.

7.Be2 b6

8.0–0 a6 9.a4 Bb7 (9...dc4 10.Bc4 Bb7 11.d4=) 10.d4 Qc7 (10...ab5 11.ab5 Ra1 12.Ba1=) 11.Nbd2 (11.dc5 Qc5 12.Bd4 Qb4=) 11...Nbd7 12.Qb3 (12.cd5 Nd5 13.ba6 Ba6=) 12...a5 (12...ab5 13.ab5 cd4 14.Nd4+=) 13.Rac1 (13.cd5 Bd5 14.Bc4 Rac8=) 13...Rac8 14.Rfd1 (14.Qd3 Rfd8=) 14...Qb8 (14...cd4 15.Bd4 e5 16.Bb2=) 15.Ne5 (15.Qd3 cd4 16.Qd4 Nc5=) 15...cd4 16.ed4 Rfd8 17.Ndf3 (17.Bf3 Bd6 18.Qe3 dc4 19.Bb7 Qb7 20.Ndc4 Bb8=) 17...Ne5+= 18.Ne5 Qa8 (18...dc4 19.Bc4 Qd6 20.f4+=) 19.f3 (19.Ba3 dc4 20.Nc4 Ba3 21.Qa3 A) 21...Bg2? 22.Nb6 Rc1 23.Na8 (23.Rc1?! Qe4=; 23.Qc1?! Qb7=) 23...Rd1 24.Bd1 Ba8 25.Qc3+–; B) 21...Qb8=) 19...Rc7 (19...dc4 20.Bc4 Nd5 21.Ba3=) 20.Rd2 (20.Ba3 dc4 21.Bc4 Ba3 22.Qa3 Qb8=) 20...Rdc8 (20...dc4 21.Bc4 Nd5 22.Bd3 Rc1 23.Bc1=) 21.Rdc2 dc4 22.Bc4 Nd5 23.Bd5 (23.Ba3!? Bg5 24.Re1=) 23...Bd5 24.Rc7 Rc7 (24...Bb3?? 25.Rc8 Qc8 26.Rc8 Bf8 27.Nd7+–) 25.Qe3 Qc8 26.Rc7 Qc7 27.Ba3 Bd8 28.Nc6? (better is 28.h3!?–/+) 28...Bc6–+ 29.bc6 Qc6 30.Qe5 (better is 30.Qb3–+) 30...f6?? (better is 30...Qc3 31.Bd6 Qa1 32.Kf2 Bh4 33.g3 Bf6–+) 31.Qb8 (31.Qd6 Qd6 32.Bd6 Kf7–/+) 31...Qc7 32.Qa8 (better is 32.Qc7!? Bc7 33.g3–/+) 32...Kf7–+ 33.d5 (33.h3 Qd7 34.Kh1 Qd4 35.Qb7 Ke8 36.Qc6 Qd7–+) 33...Qe5 (better is 33...Qc3!? 34.g4 Qd4 (34...Qa3?! 35.Qd8 Qc5 36.Kg2–/+) 35.Kf1 Qd5 36.Qd5 ed5–+) 34.de6–/+ Qe6 35.Kf2 (35.Qe4 Qe4 36.fe4 Ke6–/+) 35...Qa2–+ 36.Ke1 (36.Kf1 Qa3 37.Qd8 Qa4 38.Qb6 Qc4 39.Kf2 a4–+) 36...Qa3 37.Qd8 Qe7 38.Qe7 Ke7 39.Kd2 Kd6 40.Kc3 Kc5 41.f4 f5 42.g3 (42.Kb3–+) 42...h6 Plans Kb3 43.h4 (43.Kb3 Kd4–+) 43...b5 (better is 43...h5–+) 44.ab5 Kb5 45.h5 (45.Kd3 Kb4–+) 45...a4 0–1. Batchelor,Guy J (1845) – Haridas,Girinath (1760), E2e4. Org. uk High Wycombe U, 2013.

8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

8.0–0 Nbd7 9.Nc3 a5 10.cd5 Nd5 11.Na4 Bb7 12.d3 Rb8 13.g3 Nc7 14.d4 Bf3 15.Bf3 Nb5 16.Bc6 Nd6 17.Bd7 Qd7 18.dc5 bc5 19.Ba3 Qc6 20.Bc5 Rfd8 21.Rc1 Qb5 22.Rb1 Qc6 23.Rc1 Qb5 24.Rb1 Qc6 25.Bb6 Re8 26.Rc1 Qb5 27.Bc7 Rbc8 28.Rc5 Qa6 29.Qc2 Nb7 30.Rc6 Qb5 31.Rb1 Bb4 32.a3 Nd8 33.Rc5 Qd7 34.ab4 Nb7 35.Nb6 1–0. Bulcourf – Panzeri, Buenos Aires 1980.

8.0–0 Nbd7 9.Nc3 Qc7 10.Rc1 Bd6 11.g3 Bb7 12.d4 Rae8 13.Qd2 (better is 13.Nd2=) 13...Nh5?? (better is 13...dc4!? 14.e4 Rd8+=) 14.Ne5 (better is 14.cd5 Nhf6 15.e4+/–) 14...f6?? (better is 14...Nhf6 15.Nd7 Qd7 16.dc5 bc5+=) 15.Bh5 (15.Nd7 Ng3 16.hg3 Qd7 17.cd5 ed5 18.dc5 Bc5+–) 15...g6? (15...fe5 16.Be8 Re8 17.cd5 ed4 18.ed4 Nf6 19.de6 Re6+–) 16.Nd7 Qd7 17.Bf3 e5 (17...dc4 18.Bb7 Qb7 19.dc5 Bc5 20.Qe2+–) 18.Bd5 Bd5 19.Nd5 Qh3 (19...Qf5 20.de5 Be5 21.Be5 Qe5 22.Rfd1+–) 20.Rcd1 (better is 20.Ba3+–) 20...e4 (20...Qf5+–) 21.dc5 Bc5 (21...Be5 22.cb6 ab6 23.Nb6+–) 22.Nf6 Kh8 (22...Rf6 23.Bf6 Qe6+–) 23.Ne8 Kg8 24.Qd5 1–0. Pavlov,Oleg – Mirgorodskaya,Olga, Krasnoyarsk Russia, City Championship, 2016.

8.0–0 Nbd7 9.d4 Bb7 10.Nbd2 Rc8 11.Rc1 cd4 12.ed4 dc4 13.Nc4 Nd5 14.g3 Rc7 15.Nfd2 f5 16.Bf3 Qb8 17.Qe2 Rf6 18.Ne5 Ne5 19.de5 Rf8 20.Nb3 Rfc8 21.Rc6 Bc6 22.bc6 Rc6 23.Nd4 Rc5 24.Ne6 Rc2 25.Qb5 Nb4 26.Ba3 a5 27.Qd7 Re8 28.Bb4 ab4 29.Bc6 Rc6 30.Qc6 Qc8 31.Qd5 Kh8 32.Rd1 h6 33.Kg2 Bc5 34.Nf4 g5 35.Nh5 f4 36.Qf7 f3 37.Kh1 Re7 38.Qg6 Qf8 39.Nf6 Bf2 40.Rd8 1–0. Bulcourf – Conlazo Zavalia, Vicente Lopez 1993.

8.0–0 Nbd7 9.d4 dc4 10.Bc4 cd4 11.Nd4 Bb7 12.Nd2 Nc5 13.Qc2 Rc8 14.N4f3 a6 15.Rfd1 ab5 16.Bb5 Bd5 17.Nc4 Qc7 18.Rac1 Bf3 19.gf3 Rfd8 20.a4 Rd1 21.Rd1 Nfd7 22.f4 Rd8 23.f5 ef5 24.Qf5 Nf8 25.Rd8 (withdraw, 1–0). Schirmer – Chatterjee, email 4AMM–F 1998.

8.Ne5 Bb7 9.0–0 Nbd7 10.f4 Ne5 11.fe5 Nd7 12.d4 Qc7 13.Nd2 Bg5 14.Rf3! cd4 15.ed4 dc4 16.Rg3 Bf4 17.Rh3 Bd5 18.Qc2 f5! 19.Nc4 Rac8 20.Rc3 Qd8!? 21.Rf1? Qg5 22.g3 Be3 23.Re3 Rc4 24.Qd2 Rc7 25.Rc1 Rfc8 26.Rc7 Rc7 27.a3 Nf8 28.Bc1 Qd8 29.Rc3 Ng6 30.Qc2? Be4 31.Bd3? Qd4 0–1. Sundin – Baecklin, Sundsvall 1989 (Sundin).

7.Be2 dc4

8.0–0 =.

8.Bc4 b6 9.0–0 Bb7 10.Ne5 Qc7 11.f4 Nbd7 12.Qc2 Bd6 13.Nf3 Rfe8 14.Nc3 h6 15.Ne2 Nd5 16.Qb3 a5 17.Nc3 N5f6 18.a4 Re7 19.h3 Nh5 20.Nd1 Ng3 21.Re1 e5 22.fe5 Ne5 23.Ne5 Be5 24.Nc3 Rd8 25.Rad1 Kf8 26.Ne2 Ne4 27.Be5 Qe5 28.d3 Nd6 29.Nf4 g5 30.Nh5 Nf5 31.e4 Qd4 32.Kh1 Ne3 33.Rc1 f5 34.Qc3 Qc3 35.Rc3 Nc4 36.Rc4 Rd3 37.Ng3?? Rg3 0–1. Workowski – J Mueller, Wermelskirchen 1988.

8.Bc4 Nbd7 9.a3 Nb6 10.Qc2 Nc4 11.Qc4 b6 12.d3 Bb7 13.Nbd2 Qd7 14.Ne5 Qd5 15.e4 Qc4 16.Ndc4 Rfd8 17.0–0 Nd7 (17...Rac8 18.f4 Nd7 19.Rf3 f6 20.Ng4 f5 21.Nf2 Nf6 22.Re1) 18.Nc6 Re8 19.Ne7 Re7 20.Nd6 Bc8 (20...Nf8 21.Rad1 Rd8 22.Nc4 Ng6 23.f4 Red7 24.f5) 21.f4 f6 22.Rf3 e5 23.Raf1 ef4 24.Nf5 Rf7 25.Rf4 a6?! (25...Ne5? 26.Be5; 25...Nf8= 26.Nd6 Rd7) 26.e5 1–0. Gross – Tain, corr SOK–87–03 1987 (Gross).

8.Bc4 Nbd7 9.a3 Nb6 10.Be2 Bd6 11.Nc3 Bd7 12.0–0 Qe7 13.Qc2 Rac8 14.Ng5 h6 15.Nge4 Bb8 (15...Ne4 16.Ne4 Rfd8 17.f4=) 16.Nf6+= Qf6 17.a4 Qh4 18.g3 Qh3 19.Qe4 f5 (19...Rc7!?+/–) 20.Qb7+– Be8? (better is 20...Rf7 21.Qg2 Qg2 22.Kg2 Nd5+–) 21.a5 Bg6 (21...Rf7 22.Qa6 f4+–) 22.ab6 ab6 (22...Be5 23.ba7 Ra8 24.f4+–) 23.Nd5! Bf7 (23...ed5 24.Qg7) 24.Ne7 Kh8 25.Nc8 e5 26.Qb8 f4 27.Qe5 Rg8 28.Ne7 f3 29.Qg7! Rg7 (29...Rg7 30.Ra8) 30.Ra8 Kh7 (30...Qc8 31.Rc8 Kh7 32.Bd3 Bg6 33.Bg6 Rg6 34.Rh8) 31.Bd3 Bg6 (31...Qf5 32.Bf5 Bg6 33.Bg6 Rg6 34.Rh8) 32.Bg6 Rg6 33.Rh8 1–0. usingprogram (1990) – armel (1730), kurnik, 2013.

7.Be2 Nbd7

8.0–0 Qc7 9.Nc3 b6 10.a4 Bb7 11.a5 dc4 12.Bc4 Ng4 13.e4 Nde5 14.Ne5 Ne5 15.ab6 ab6 16.Ra8 Ra8 17.Qe2 Qd6 18.d3 Bf6 19.Rd1 Nc4 20.dc4 Bd4 21.Kh1 Qe5 22.Qd3 f5 23.ef5 Qf5 24.Qf5 ef5 25.Kg1 Kf7 26.Kf1 Bc8 27.Ra1 Ra1 28.Ba1 Be6 0–1. Rosell – CJ Andersen, Denmark 1983.

8.0–0 Qc7 9.d3 Rd8 10.Qc2 b6 11.a4 Bb7 12.Nbd2 Ne8 13.a5 Bf6 14.a6 Bc8 15.Rac1 Ne5 16.d4 Nc4 17.Nc4 dc4 18.Qc4 Qd7 19.Rfd1 Nd6 20.Qa2 Nb5 21.dc5 Qc6 22.Rd8 Bd8 23.Ne5 Qe8 24.Bf3 Nc7 25.cb6 1–0. Melich – Rajnys, Ceske Budejovice 1995.

8.0–0 Ne4 9.Nc3 Bf6 10.Qb3 Nc3 11.dc3 Nb6 12.Rfd1 Qc7 13.a4 Nc4 14.Bc4 dc4 15.Qc4 b6 16.e4 Bb7 17.Bc1 Rfd8 18.Be3 Rd1 19.Rd1 Rd8 20.Rd2 Rd7 21.Kf1 Qc8 22.Rd7 Qd7 23.Ke2 a5 24.Qd3 Qd3 25.Kd3 h6 26.Nd2 Bd8 27.Bf4 f5 28.f3 Kf7 29.Nc4 fe4 30.fe4 Ba8 31.Bb8 Kf6 32.Ba7 Kg5 33.Bb6 Be7 34.Ba5 Kf4 35.Bc7 1–0. Bulcourf – Olivares, Acasusso 1991.

8.a4 b6 9.0–0 Bb7 10.Nc3 Ne4 11.d4 cd4 12.Nd4 Nc3 13.Bc3 dc4 14.Bf3! Bf3 15.Qf3 Qc7 16.Nc6 Bf6 17.Bf6 Nf6 18.Rac1 a6 19.Rc4 ab5 20.ab5 h6 21.g3 Qb7 22.Qf4 Rfe8 23.Qd6 Kh8 24.Rfc1 Rec8 25.Qd3 Ra2 26.Rd4 Raa8 27.Rd1 Nd5 28.e4 Nf6 29.Rd6 Rf8 30.Qd4 Kg8 31.f3 Rfe8 32.Ne5 Reb8 33.Nd7? Nd7 34.Rd7 Qc8 ½–½. Kreuzer – Mueller, 1982.

8.a4 b6 9.0–0 Bb7 10.d3 Qc7 11.Nbd2 a5 12.Rc1 Rad8 13.Qc2 Bd6 14.h3 Ne5 15.cd5 ed5 16.Ne5 Be5 17.Nf3 Bb2 18.Qb2 Rfe8 19.Rfd1 Qe7 20.Nd2 Nd7 21.Nf3? (21.Bf3) 21...d4 22.e4 Ne5? (22...f5!) 23.Ne5 Qe5 24.Bf1 Rd6 25.Qd2 Rh6?! (25...Rf6) 26.f4 Qh5 27.g4 Qh4 28.Qf2 Qe7 29.Bg2 (29.g5!?) 29...g5 30.fg5 Qg5 31.Rf1 Qg7 32.Qf4 Rhe6 33.Rf2 Re5 34.Rcf1 R8e7 35.Qg3 Bc8 36.Rf6 R5e6 37.Qb8 Qf8 38.Qf4 Rf6 39.Qf6 Re6 40.Qf4 Qe7 41.Qb8 Qb7 42.Qf4 Qe7 43.Qf5 Bd7 44.Qf4 Kg7 45.g5 f6 46.gf6 Qf6 47.Qg3 Qg6 48.Qc7 Re7 49.Qd8 Qe6 50.Qf8 Kg6 51.Rf3 Qe5 52.Kf2 h5 53.Rg3 Bg4 54.Qf5? (54.Bf3! Rf7 55.Qg8 Rg7 56.Qd8+–) 54...Qf5 55.ef5 Kf5 56.hg4 hg4 57.Be4 Kf4 58.Bd5 Rh7 59.Be6 Rh2 60.Rg2 g3 61.Kg1 Rh5 62.Bb3 Re5 63.Kf1 Re3 64.Bc2 Rf3 65.Ke1 Re3 66.Kf1 Kf3 67.Bd1 Kf4 68.Rd2 Re7 69.Re2 Re3 70.Rd2 Kg5 71.Kg2 Kf4 72.Be2 Re7 73.Bf1 Re1 74.Re2 Ra1 75.Re6 Ra4 76.Rb6 Ra2 77.Kg1 Rb2 78.Rb8 Ke3 79.Re8 Kf4 80.Rf8 Ke5 81.Rb8 Kd6 82.Rb6 Ke5 83.Rb8 Kd6 84.Rb6 Kc7 85.Rc6 Kb7 86.Rc5 Kb6 87.Rc4 Rb4 88.Kg2? Rc4 89.dc4 a4 90.c5 Kc5 91.Bc4 a3 92.Kg3 d3 93.Kf2 d2 94.Ke2 Kc4 95.b6 a2 96.b7 d1Q 97.Kd1 a1Q 0–1. Kreuzer – Golf, 1993 (Kreuzer).

8.d4 dc4 9.Nbd2 Nb6 10.Nc4 Nc4 11.Bc4 b6 12.0–0 cd4 13.ed4 Bb7 14.Qb3 Nd5 15.Rac1 f6 16.Rfe1 Qd7 17.Re2 Rfe8 18.Rce1 Bf8 19.Bc1 Rac8 20.Bd2 Bd6 21.a4 Re7 22.Qd3 Rce8 23.Bb3 Nf4–+ (23...Rc8=) 24.Bf4 Bf4 25.Qf5 Bh6?+– (25...Qd6 26.Re6 Re6 27.Re6 Re6 28.Qe6 Qe6 29.Be6 Kf8+=) 26.Re6 Kf8 (26...Re6 27.Be6 Re6 28.Qe6 Qe6 29.Re6 Kf7+–) 27.Rf6! gf6 (27...Rf7 28.Rf7 Kg8 29.Rf8) 28.Qf6 Rf7 29.Qh8 (29.Qf7 Qf7 30.Bf7 Re1 31.Ne1 Kf7–+; 29.Bf7?! Re1 30.Ne1 Bg7 31.Be6 Bf6 32.Bd7 Bd4+–; 29.Qh6 Kg8 30.Re8 Qe8+–) 1–0. Holz auf der Heide – Raitza, corr DDR–H–131 1972 (Plock).

8.d4 dc4 9.Nbd2 c3 10.Bc3 Nd5 11.Bb2 cd4 12.Bd4 Bf6 13.Nb3 Nc3! 14.Qd3 Ne2 15.Qe2 e5 16.Bb2 e4 17.Nfd4 Ne5 18.0–0 Bg4 19.Qc2 Nd3! 20.Ba3 Rc8 21.Qd2 Re8 22.Bb4 Qc7 23.a4 Be5 24.g3 Qc4! 25.Ba3 b6 26.Bb2 Red8 27.a5!? Nc5 28.Nc1 Bd4 29.Bd4 Ne6 30.ab6 ab6 31.Qa2 Nd4 32.ed4 Qd4 33.Ne2 Qd3 34.Nf4 Qb5 35.Qa7 Qc5 36.Ng2 Rd7 37.Qa4 Rd4 38.Qa7 b5 39.h4 Qa7 40.Ra7 Rd7 41.Rd7 Bd7 42.Rb1 f5 43.Nf4 Kf7 44.Nd5 Rb8 45.Kf1 Be6 46.Nb4 Bc4 47.Ke1 Ra8 48.Rb2 Kf6 49.Kd2 f4 0–1. Kidrin – I Johansson, corr ICCF WT–M–GT–222 1991 (Johansson).

8.0–0 b6

9.a4 a5 10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 Rad8 13.Qc2 Qb8 14.Rfd1 Bd6 15.cd5 Nd5 16.Nc4 Bc7 17.g3 Qa8 18.e4 Nb4 19.Qc3 Nf6 20.Qe1 Ne8 21.Bf1 f5 22.Ng5 Qc8 23.ef5 Rf5 24.Qe6 Qe6 25.Ne6 Rd7 26.Nc7 Nc7 27.Bh3 1–0. Bulcourf – Maggiolo, Florida 1993.

9.a4 a5 10.d4 Ra7 A) 11.Nc3 Bb7 (11...dc4 12.Bc4 Rc7 13.d5 ed5 14.Nd5 Nd5 15.Qd5 Bf6 16.Bf6 Qf6 17.Qh5=) 12.Rc1 dc4 13.Bc4 Qa8 14.dc5 Nc5 15.Be2 Rc8 16.Qc2 Nfe4 17.Ne4+=; B) 11.Ne5 Ne5 (11...Qe8 12.Nc6 Rc7 13.dc5 Bc5 14.cd5 Nd5 15.Bf3 Nb4 16.Bc3 Bb7 17.Nb4+=) 12.de5 Ne8 13.Qc2 Rd7 14.Bd3 h6 15.cd5 ed5 16.Rd1 Nc7 17.Nc3=.

9.a4 a5 10.d4 Bb7 11.Nbd2 (11.cd5 Bd5 (11...Nd5 12.Nc3 Rc8 13.Rc1 Re8 14.Bc4 N7f6 15.dc5 Bc5 16.Nd5 Nd5 17.Qe2=) 12.Nc3 Bb7 13.Qd2 Rc8 14.Rac1 Qc7 15.Rfd1 Rfd8 16.Qc2 Bd6 17.h3=) 11...Rc8 (11...cd4 12.Bd4 Bd6 13.cd5 Bd5 14.Nc4 Qb8 15.Bb2 Rd8 16.Nd6 Qd6 17.Qd4=) 12.Rc1 h6 (12...cd4 13.Bd4 Ba3 14.Rc2 Qe7 15.cd5 e5 16.Ba1 Bd5 17.Nc4=) 13.Ne5 (13.Re1 cd4 14.Bd4 Bb4 15.cd5 Bd5 16.Rc8 Qc8 17.Rf1=) 13...Ne5 (13...cd4 14.Bd4 Ne5 15.Be5 Nd7 16.Bc3 Nc5 17.Bd4=) 14.de5 Nd7 15.f4 (15.cd5 ed5 16.Bg4 Rc7 17.e6=) 15...Re8 (15...Qc7 16.cd5 ed5 17.Bg4=) 16.Bf3 Nf8 (16...Rc7 17.Qc2=) 17.Re1 (17.Qc2=) 17...Qd7 (17...Qc7!?=) 18.cd5+= ed5 (18...Bd5!? 19.e4 Bb7+/–) 19.Bg4+/– Qd8 20.Bc8 Bc8 21.Nf3 Bf5 22.Qe2 Ne6 23.Red1 Qa8 24.h3 Rd8 25.g4 Be4 26.Nd2 Bh7 27.f5 Nc7 28.Qf3 Bf8 29.Nb3 Qc8 30.Bc3 Kh8 31.Na5! ba5 32.Ba5 Rd7 33.Bc7 Qc7 34.Rd5 Rd5 35.Qd5 Bg8 36.Kg2 Be7 37.Rb1 (37.f6 gf6 38.ef6 Bf6 39.Rc5 Qa5+–) 37...Qb6 (37...Qa5 38.Qe4 Qd2 39.Kh1 Bh4+/–) 38.a5 Qa5 39.b6 Qc3 40.Kf3 Bg5 (better is 40...Qc2!? 41.Qe4 Qh2+–) 41.Qe4+– (41.Qe4 Bd8 42.f6+–) 1–0. gdriessen (1925) – devonmichael (1825),, 2014.

9.a4 a5 10.d4 dc4 A) 11.Na3 Bb7 (11...c3 12.Bc3 Bb7 13.Nc4 Bd5 14.Qc2 Ne4 15.Rfd1 Rc8 16.Rac1 Nc3 17.Qc3=) 12.Nc4 Bd5 13.Rc1 Rc8 14.Qc2 cd4 15.Bd4 Ba3 16.Rcd1 Bd6 17.Bd3=; B) 11.Nbd2 Bb7 (11...c3 12.Bc3 Bb7 13.Nc4 Bd5 14.Qc2 Ne4 15.Rfd1 Rc8 16.Rac1 Nc3 17.Qc3=) 12.Nc4 Nd5 13.Rc1 Rc8 14.dc5 Nc5 15.Bd4 f6 16.Bc5 Bc5 17.Nd4=.

9.a4 a5 10.d4 Qc7 A) 11.cd5 Nd5 (11...ed5 12.dc5 bc5 13.Nc3 Nb6 14.Rb1 Rb8 15.Qc2 Bd6 16.h3 Be6 17.Rfd1=) 12.Nbd2 Bb7 13.Rc1 Rac8 14.e4 N5f6 15.Bd3 Qf4 16.Qe2 cd4 17.Bd4=; B) 11.dc5 Nc5 (11...Bc5 12.cd5 Nd5 13.Nbd2 Bb7 14.Rc1 Rac8 15.Qb3 Rfd8 16.Rfd1 N5f6 17.Qc4=) 12.Be5 Qd7 13.Nbd2 Bb7 14.Nb3 Nb3 15.Qb3 Rac8 16.Rfd1 Rfd8 17.cd5=.

9.a4 a5 10.d4 Re8 A) 11.dc5 Bc5 (11...Nc5 12.Ne5 Bb7 13.Nc6 Qc7 14.Be5 Bd6 15.Bd6 Qd6 16.cd5 Qd5 17.Nc3=) 12.cd5 Nd5 13.Nc3 Bb7 14.Bd3 Nc3 15.Bc3 Rc8 16.Qe2 Bd6 17.Rfc1=; B) 11.cd5 Nd5 (11...ed5 12.dc5 Nc5 13.Nbd2 Nfe4 14.Nd4 Bd6 15.N2f3 Qf6 16.Rc1 Qg6 17.Ne1=) 12.e4 Nf4 13.Bc4 Bb7 14.Nbd2 Rc8 15.Rc1 cd4 16.Bd4 Nc5 17.e5=.

9.a4 Bb7 10.Ne5 Rc8 11.f4 Ne4 12.d3 Nd6 13.cd5 ed5 14.Bg4 f5 15.Bf3 Nf6 16.Nd2 Rc7 17.Qb3 Nf7 18.Nc6 Bc6 19.bc6 Rc6 20.Nc4 dc4 21.Bc6 cb3 0–1. Hirt – Glas, 1985.

9.Nc3 Bb7 10.cd5 ed5 11.d4 Rc8 12.a4 Re8 13.dc5 Nc5 14.Nd4 Nce4 15.Rc1 Nc3 16.Rc3 Rc3 17.Bc3 Ne4 18.Ba1 Bd6 19.Nf5 Bf8 20.Qd4 f6 (better is 20...Qg5 21.g4 h5=) 21.f3 (better is 21.Rc1+=) 21...Bc5–/+ 22.Qd3 Nd6 23.Nd4 Nc4 24.Rc1 Ne5 (24...Re3!? 25.Qd1 Qe8–/+) 25.Qf5 (25.Qb3 Ng6=) 25...Bc8 26.Qc2 Ng6 27.Qd3 Qe7 28.Kf1? (28.Kf2 Qd6 29.g3 Ne5=) 28...Qd6 (28...Qe3 29.Qe3 Re3 30.Bb2–/+) 29.Nf5? (better is 29.Kg1=) 29...Bf5–+ 30.Qf5 Qh2 31.Qd5 Kh8 32.Rc5 bc5 33.Qc5? (better is 33.Qc6 Rf8 34.Bc3–+) 33...Qh1 (33...Qh1 34.Kf2 Qa1 35.Qa7 f5–+) 0–1. mic (2340) – michelleke (2555), net–, 2016.

9.d4 Bb7 10.Nc3 Rc8 11.cd5 Nd5 12.Rc1 cd4 13.Nd4 Nc5 14.Bf3 Bf6 15.Nd5 Bd5 16.Qe2 Bf3 17.Qf3 Qe8 18.Ba3 a6 19.Rfd1 ab5 20.Qe2 Be7 21.Nb5 Rd8 22.Rd4 Rd4 23.ed4 Nb7?? (23...Nd7=) 24.Be7 Qe7 25.Rc7 Qg5 26.Rb7 Rc8 27.h3 h5 28.Qf3 1–0. Ganesan – Manninen, corr 3GMM–19 1994–95 (Ganesan).

9.d4 Bb7 10.Nbd2 Rc8 11.Rc1 Re8 12.Ne5 cd4 13.ed4 Ne5 14.de5 Ne4 15.Ne4 de4 16.Qa4 Bc5 17.Rcd1 Qe7 18.Bd4 Ba8 19.Be3 a5 20.ba6 Bc6 21.Qb3 Ra8 22.Rd6 Bd6 23.ed6 Qd6 24.Bb6 Qd2 25.Bh5 Ra6 26.a3 Qd3 27.Qb2 Qa3 28.Qb1 Qd3 29.Qb4 Ra4 30.Qb2 Rc4 31.Be3 Qc3 32.Qb6 Bd5 33.Qd6 Rcc8 34.Qd7 g6 35.Bg4 Qc7 36.Qc7 Rc7 37.h4 e5 38.Be2 Bc4 39.Bc4 Rc4 40.g4 f6 41.Rd1 Rc7 42.Rd6 Kf7 43.h5 f5 44.h6 f4 45.Bd2 g5 46.Ba5 Ra7 47.Bc3 Re6 48.Rd5 Kg6 49.Be5 Kh6 50.Bd4 Rb7 51.Kf1 Rb1 52.Ke2 Rg1 53.f3 ef3 54.Kf3 Rg3 55.Kf2 Rg4 56.Rd7 Rg3 57.Bg7 Kh5 58.Bf8 Kg4 59.Rh7 Rf3 60.Kg2 Re2 61.Kg1 Rd3 62.Kf1 f3 63.Bb4 Rd1 0–1. Bulcourf – Justo, Acasusso 1991.

8.0–0 dc4

9.Na3 a6 10.ba6 Ra6 11.Bc4 (11.Qc2 Nd5+=) 11...Ra8 12.Nb5 Nb6 13.Be2 Nbd5 (13...Na4 14.Be5=) 14.Qb3 (14.a4 Nb4+=) 14...Bd7= 15.Rfd1 Qa5 16.Ne5 Bb5 17.Bb5 Rfd8 18.Nc4 (18.f3 Qb4+=) 18...Qb4= 19.Qb4 Nb4 20.a4 Nd3 21.Bc3 Nd5 22.Ba5 Rf8 23.e4 N5b4 (23...Nf6 24.f3=) 24.Bc7 Rac8 25.Bg3 Rcd8 26.Na5 Rd4 27.Nb7 Re4 (27...f5 28.ef5 ef5 29.f3+=) 28.a5+/– Bf6 (28...Nb2 29.Rdb1 N2d3 30.a6+–) 29.Ra3 Rd4 30.a6 Ra8 31.a7 Nb2 (31...e5!?+/–) 32.Rb1+– Nc2 (32...Nc4 33.Bc4 Rc4 34.Nd6+–) 33.Ra2 (33.Rb2? Na3 34.Nc5 Nb5 35.Rb5 Ra7 36.Rb8 Rd8–+) 33...Rb4 (better is 33...Rd2 34.Nc5 Nb4+–) 34.Bc6?? (34.Nd6 Nd3 35.Rf1 Rb2+–) 34...Nd4? (34...Nd3 35.Rb4 Ndb4 36.Nd8 Nc6 37.Nc6=) 35.Be4?? (35.Nd8 Ra7 36.Ra7 (36.Rbb2?? Ra2 37.h3 Rab2–+) 36...Bd8 37.Be8+–) 35...Ne2+= 36.Kf1 Ng3 37.fg3 Re4 38.Rbb2?? (better is 38.Nc5 Rb4 39.Ra4 Ra4 40.Na4 Ra7 41.Nb2+=) 38...Bb2–+ 39.Nc5 (39.Rb2 Rb4 40.Rb4 cb4–+) 39...Rc4 40.Rb2 (40.Ne6 Be5 41.Ng5 Bd4–+) 40...Rc5 41.d4 (41.Ke2 g6–+) 41...Rcc8 0–1. Karmanova,Marina (2030) – Baraeva,Marina (2185), Moscow Open Women, 2012. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 c5 5.e3 Be7 6.c4 0–0 7.Be2 Nbd7 8.0–0 dc4)

9.Bc4 b6

10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 a6 A) 13.a4 Rfd8 (13...ab5 14.Bb5 Bd6 15.Qc2 Rfd8 16.Rfd1 Bc6 17.d4 Bb5 18.ab5 Ra2 19.Ra1=) 14.ba6 Ba6 15.Qc2 Nd5 16.Bd5 ed5 17.Rfe1 Qd6 18.Rb1 Re8 19.Rec1+=; B) 13.ba6 Ba6 (13...Bc8 14.a7 Qa7 15.Qb3 Rd8 16.Be6 fe6 17.Qe6 Kf8 18.Ng5 Ne5 19.Qe5+/–) 14.a4 Bc4 15.Rc4 Rfd8 16.Qc2 Bd6 17.d4 Nd5 18.e4 Nb4 19.Qb3=.

10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 Rac8 13.e4 (13.Qc2 Bd6 (13...Ra8 14.Rfd1 a6 15.a4 Rfd8 16.d4 ab5 17.Bb5 Bc6 18.Bc3 Bb5 19.ab5=) 14.Qc3 Ra8 15.e4 Bf4 16.Rfd1 a6 17.ba6 Ba6 18.d4 b5 19.Bf1+=; 13.Qb3 Rfd8 (13...Ra8 14.d4 a6 15.ba6 Ba6 16.a4 Bb7 17.Rfd1 Bd6 18.Bb5 Rfc8 19.Qc2=) 14.Rfd1 Bd6 15.Ne4 Ne4 16.de4 Be4 17.Be6 Bf3 18.Bf7 Kh8 19.gf3=) 13...Rfd8 (13...Ra8 14.Re1 Qf4 15.Qa4 Rfd8 16.a3 Ng4 17.Re2 Nge5 18.Qb3 Nc4 19.dc4+=; 13...Qf4 14.Re1 Ra8 15.Qa4 Rfd8 16.Bc3 a6 17.ba6 Qg4 18.Bb5 Ba6 19.Ba6=) 14.Qa4 (14.Qe2 Qf4 15.Qe3 Qe3 16.fe3 Ra8 17.Ng5 h6 18.Ngf3 a6 19.a4=) 14...Ba8 (14...Ra8 15.a3 Qf4 16.Rfe1 Ng4 17.Re2 Nge5 18.Qb3 Nc4 19.dc4+=) 15.h3 (15.Rfe1 Ng4 16.h3 Bf6 17.d4 Nh6 18.Bd3 Nf8 19.Red1+=) 15...Bd6 16.Rfe1 (16.Rce1 Bf4 17.a3 e5 18.Qb3 Rf8 19.Bc3=) 16...Ne5 (16...Bf4!?= 17.Bc3 Bb7 18.g3 Bh6 19.Re2=; 16...Nh5 17.Qb3 Nf4 18.Qc3 e5 19.Ng5+=) 17.Ne5 (17.Be5 Be5 18.Ne5 Qe5 19.Qa7+=) 17...Be5 18.Be5 Qe5 19.Qa7 Qd4? (better is 19...Qf4 20.Nf3 Nd7+=) 20.Qb6+– Nd7 21.Qa6 Ne5 22.Nb3 Qb2 (22...Qd7 23.a4+–) 23.b6 1–0. tino_vegh (2025) – tactix47 (1780),, 2014.

10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 Rfc8 A) 13.Qc2 Bd6 (13...a6 14.ba6 Ba6 15.a4 Bc4 16.Nc4 Rd8 17.Nfe5 Nd5 18.Rfd1 f6 19.Nf3=) 14.Rfd1 a6 15.ba6 Ba6 16.a4 Bb7 17.Ne4 Bc6 18.Bb5 Ne4 19.de4=; B) 13.Qb3 a6 (13...Bd6 14.Rfd1 a6 15.ba6 Ba6 16.a4 Bb7 17.Ne4 Bc6 18.Be6 Ba4 19.Bf7+=) 14.ba6 Bd5 15.Bd5 Nd5 16.Qb5 Qd8 17.Be5 Nb4 18.Nc4 Na6 19.a4=.

10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 Bd5 A) 13.Qc2 a6 (13...Bc4 14.Qc4 a6 15.ba6 b5 16.Qb3 Qa5 17.Rc2 Qa6 18.Rb1 Rfb8 19.Bf6=) 14.ba6 Bc4 15.Qc4 b5 16.Qb3 Qa5 17.Rc2 Qa6 18.Rb1 Rfb8 19.Ne5=; B) 13.Qa4 Bd6 (13...Rfd8 14.Rfd1 a6 15.ba6 Bc4 16.Nc4 Qa7 17.d4 Rdc8 18.a3 Qa6 19.Qa6=) 14.a3 Rfd8 15.Rfd1 Bb7 16.d4 cd4 17.Bd4 Nc5 18.Qc2 Nce4 19.Qb2=.

10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 Bd6 A) 13.Qa4 Rfd8 (13...Ng4 14.h3 Nge5 15.Ne5 Be5 16.Be5 Qe5 17.a3 Rfd8 18.Rfd1 Nf6 19.Nf1=) 14.Rfd1 Ng4 15.h3 Bh2 16.Kf1 Nge5 17.Ne5 Be5 18.d4 cd4 19.ed4+=; B) 13.Qb3 a6 (13...Rfd8 14.Rfd1 a6 15.ba6 Ba6 16.Ba6 Ra6 17.d4 Be7 18.a3 Qc6 19.Nc4=) 14.ba6 Ba6 15.Rb1 b5 16.Bb5 Bb5 17.Qb5 Rfb8 18.Qc4 Rb4 19.Qc3=.

10.d3 Bb7 11.Nbd2 Qc7 12.Rc1 Rfd8 A) 13.Qa4 a6 (13...Bd6 14.Rfd1 Ng4 15.h3 Bh2 16.Kf1 Nge5 17.Ne5 Be5 18.d4 cd4 19.ed4+=) 14.ba6 Ba6 15.Ba6 Qa7 16.Rc4 Qa6 17.Qa6 Ra6 18.a3 b5 19.Rc3+=; B) 13.Qb3 Bd6 (13...Qd6 14.Rfd1 a6 15.Ne4 Ne4 16.de4 Qc7 17.ba6 Ba6 18.Be6 fe6 19.Qe6+– 3.44) 14.d4 a6 15.ba6 Ba6 16.Ba6 Ra6 17.Rfd1 Be7 18.a3 Qc6 19.Nc4=.

8.0–0 Re8

9.Qc2 a6 A) 10.Na3 Bd6 (10...ab5 11.Nb5 dc4 12.Bc4 Nb6 13.Be2 Bd7 14.Be5 Nfd5 15.e4 Nb4 16.Qb2+=) 11.ba6 ba6 12.Rfb1 Rb8 13.d4 Qa5 14.Ne5 Qc7 15.cd5 ed5 16.Nd7+=; B) 10.Nc3 dc4 (10...ab5 11.Nb5 dc4 12.Qc4 Nb6 13.Qc2 Bd7 14.Be5 Nfd5 15.e4 Nb4 16.Qb2+=) 11.Bc4 b6 12.d4 Bb7 13.dc5 Bf3 14.gf3 ab5 15.Bb5 Bc5 16.Rfd1=.

9.Qc2 Nb6 A) 10.d3 Bd6 (10...a6 11.a4 Nbd7 12.ba6 Ra6 13.d4 Ra8 14.Rd1 cd4 15.Nd4 Nc5 16.Nc3+=) 11.a4 e5 12.Nbd2 d4 13.Nb3 a5 14.ba6 Ra6 15.a5 Nbd7 16.Rab1=; B) 10.cd5 ed5 (10...Nbd5 11.d4 cd4 12.Bd4 Bd6 13.Ne5 Nd7 14.f4 Qh4 15.Nf3 Qh6 16.Nc3+=) 11.a4 a5 12.Rc1 c4 13.d3 Bf5 14.Nd4 Bg6 15.Qd2 Bd6 16.Nf3=.

9.Qc2 dc4 A) 10.Qc4 Bd6 (10...a6 11.Nc3 ab5 12.Nb5 b6 13.d4 Bb7 14.dc5 Bd5 15.Qf4 Nc5 16.Rfd1=) 11.d4 a6 12.Rd1 ab5 13.Qb5 cd4 14.Bd4 Qc7 15.Qd3 e5 16.Bc3=; B) 10.Bc4 Bd6 (10...Nb6 11.Be2 Bd6 12.Ba3 Qc7 13.Rc1 Nbd7 14.d4 b6 15.Nbd2 Bb7 16.e4+=) 11.e4 e5 12.a4 Nb6 13.Be2 Bg4 14.a5 Nbd7 15.Rc1 Nh5 16.Qc3=.

9.Qc2 Qc7 A) 10.d3 e5 (10...a6 11.Nc3 Bd6 12.h3 b6 13.ba6 Ba6 14.a4 dc4 15.dc4 e5 16.e4=) 11.cd5 Nd5 12.Nbd2 Bd6 13.Ne4 a6 14.ba6 b6 15.Rfc1 Ba6 16.Nfg5=; B) 10.Rc1 Bd6 (10...a6 11.d4 cd4 12.Nd4 e5 13.Nf5 Bf8 14.cd5 Qc2 15.Rc2 Nb6 16.Ng3=) 11.d3 e5 12.cd5 Nd5 13.Nc3 Nc3 14.Bc3 Nf6 15.a4 Nd5 16.Bb2=.

9.Qc2 Bd6 A) 10.Rd1 e5 (10...Qc7 11.d3 a6 12.ba6 ba6 13.Nbd2 Rb8 14.Rab1 Bb7 15.a3 d4 16.ed4=) 11.d3 d4 12.Nbd2 Ng4 13.Nf1 a6 14.a4 b6 15.Rdb1 de3 16.fe3=; B) 10.Rc1 e5 (10...a6 11.d4 cd4 12.Nd4 dc4 13.Bc4 Qc7 14.h3 Nb6 15.Bd3 Qc2 16.Nc2=) 11.d3 d4 12.Nbd2 Qe7 13.Rcb1 de3 14.fe3 Ng4 15.Nf1 e4 16.de4=.

9.Qc2 Bf8 10.d3 Bd6 (10...e5 11.cd5 Nd5 12.Nbd2 Bd6 13.Ne4 Qe7 14.Rfd1 Nb4 15.Qd2 b6 16.Nd6+=) 11.Nc3 Qc7 12.h3 a6 13.Rfd1 Rd8 14.cd5 ed5 15.ba6 ba6 16.Rab1 =.

9.Qc2 Bf8 10.d4 cd4 (10...Bd6 11.dc5 Nc5 12.Rd1 a6 13.cd5 ed5 14.Nc3 Be6 15.Rac1 Rc8 16.Nd4=) 11.Nd4 (11.Bd4 Qc7 12.Rc1 e5 13.Bb2 e4 14.Nd4 Bd6 15.h3 Bh2 16.Kh1=) 11...e5 12.Nf3 dc4 (12...Qc7 13.Rc1 e4 14.Nd4 Bd6 15.h3 Nc5 16.Nd2=) 13.Bc4 Nb6 (13...Bd6 14.Rd1 Nb6 15.Be5 Nc4 16.Qc4+/–) 14.Ne5 Nc4 15.Nc4 Ne4 16.Rd1 Qh4 17.Nba3 Bf5 18.f3 Nd6 (18...Ba3 19.Ba3 Nd6 20.e4 Nb5 21.Qb2 (21.ef5?! Rac8 22.Bb2 Qc4 23.Qc4 Rc4=) 21...Na3 22.Nd6+/– (worse is 22.Qa3 Rec8+=)) 19.e4 Ne4 (19...Nc4!? 20.Nc4 Be6+/–) 20.fe4 Re4 21.Qf2 Qh5? (better is 21...Qf2 22.Kf2 Rae8+/–) 22.Rd5 g6 (22...Ba3 23.Ba3 (worse is 23.Qf5 Qf5 24.Rf5 Bb2 25.Nb2 a6+–) 23...Rc4 24.Rf5+–) 23.Ne3 1–0. tino_vegh (2025) – wwgia (1775),, 2014.

9.Qc2 Bf8 10.Ne5 Ne5 (10...dc4 11.f4 a6 12.Bc4 Ne5 13.fe5 ab5 14.ef6 bc4 15.fg7 Bg7 16.Bg7+=) 11.Be5 Nd7 12.Bg3 Nb6 13.d3 Bd6 14.Bd6 Qd6 15.Nc3 a6 16.a4 +=.

6.c4 b6

7.Nc3 Bb7 8.Be2 (8.d4 0–0=) 8...Nbd7 (8...d4 9.Nb1 d3 10.Bf1=) 9.0–0 0–0 10.cd5 Nd5 11.d4 cd4 12.Nd4 N7f6 13.Rc1 Rc8 14.Bf3 Qd6 15.Nd5 Bd5 16.Bd5 (16.Nc6 Bc6 17.Qd6 Bd6 18.Rc6 Rfd8+/–) 16...Qd5? (better is 16...Rc1!? 17.Qc1 Ng4+=) 17.Nc6+/– Bc5 18.Bf6 Qd1 19.Rfd1 gf6 20.Rd7 (20.Na7 Ra8 21.Rd7 Rfd8+/–) 20...a5 21.a4 f5 22.Rcd1 f6 23.Rb7 Rf7 24.Rdd7 Rd7 25.Rd7 Rf8 26.Kf1 Rf7 27.Rf7 (27.Nb8!?+/–) 27...Kf7+= 28.Ke2 e5 29.Kd3 Ke6 30.Kc4 (30.f3 h5+=) 30...f4= 31.ef4 Bf2 32.fe5 fe5 33.g4 h6 (33...e4 34.h3+=) 34.h3 (34.Kd3 Bg1 35.h4 Bh2+=) 34...Kd6 35.Nd8 (35.Kd3 Bg3+=) 35...e4 (35...Ke7!? 36.Nc6 Kd6+=) 36.Nf7+/– Ke6 37.Nh6 Ke5 (37...Kf6 38.Nf5 Kg5 39.Ng7+/–) 38.Nf5 (better is 38.g5!? Be1 39.Nf7 Ke6 40.g6+–) 38...Kf4+= 39.Kc3 (better is 39.Ng7+=) 39...Kf3 (better is 39...Bc5=) 40.g5+– e3 41.Nd4 Ke4 42.Nc2 (better is 42.g6!? Bh4 43.Ne2+–) 42...Bh4 43.g6 Bg5 (43...Bf6 44.Kb3+=) 44.Kc4 (44.Ne1 e2+/–) 44...Bh6 (44...Bf6 45.h4 e2 46.h5+=) 45.h4 e2 46.h5 (46.Kc3 Kf5+/–) 46...Bg7 47.Ne1 Kf4 48.Kd3 Kg5 49.Ke2 Kh5 50.Kd3 Kg6 51.Ke4 Kf7 52.Kd5 Ke7 53.Kc6 Bd4 54.Nf3 Be3 55.Ne5 Kd8 56.Nc4 Bf2 57.Nb6 Be1 58.Kb7 Bb4 59.Nc4 Kd7 60.Kb6 Kc8 61.Na5 Be1 62.Nc4 Kb8 63.a5 Bf2 64.Ka6 Bd4 65.Nb6 Bf2 66.Nd7 Ka8 (66...Kc8 67.b6 Bg3+–) 67.b6 Bb6 68.Nb6 (68.Kb6?!; 68.ab6?!) 68...Kb8 69.Nd5 Ka8 70.Kb6 Kb8 71.a6 1–0. higarra (2525) – mpenga (2585), net–, 2016.

7.d4 0–0 8.Nbd2 Bb7 9.Bd3 Nbd7 10.cd5 ed5 11.Be2 (11.dc5 bc5 12.0–0 a6=) 11...c4+= 12.0–0 Re8 13.Qc2 Rc8 (13...Bd6 14.Nh4+=) 14.Bc3= Nf8 15.a4 Ng6 (15...Bd6 16.a5=) 16.a5 Bd6 17.a6 Ba8 18.Rfe1 (18.Rfc1 Qd7 19.Rab1 Qg4=) 18...Bb8 19.Qf5 Qd6 (19...Ne7 20.Qh3=) 20.Ne5 Ne5 (20...Qe7 21.Ng6 fg6 22.Qh3=) 21.de5+= Qd7? (better is 21...Qc7!?+=) 22.Bg4+– Qf5 23.Bf5 Ne4 24.Ne4 de4 25.Bc8 Rc8 26.Red1 Kf8 27.Rd7 Ke8 28.Rad1 Bc7 29.Bb4 Bd8 30.Ra7 (30.Ra7 c3 31.Bc3+–) 1–0. zack1984 (1805) – justnow (1815),, 2015.

7.Be2 0–0 8.0–0 Bb7 9.d4 1–0. Steche – Tejler, corr SOK–89–33.

6.c4 dc4

7.Na3 a6 8.Bc4 0–0 9.0–0 Bd7 10.Qb3 ab5 11.Bb5 Bb5 12.Nb5 Nc6 13.Rfd1 Nd5 14.d4 Na5 15.Qc2 Qb6 16.a4 Rac8 17.dc5 Rc5 18.Qe4 Rc4 19.Bd4 Nb3 20.Qd5 ed5 21.Bb6 Na1 22.Ra1 Rfc8 23.g3 R8c6 24.a5 Rf6 25.Kg2 Rc2 26.Nc7 Rd6 27.Nd4 Rd2 28.Bc5 Rf6 29.Be7 Rff2 30.Kh3 Rh2 31.Kg4 h5 32.Kf4 Rhg2 33.Bd6 Rdf2 34.Kg5 Kh7 35.Kh5 Rh2 36.Kg4 Rh6 37.Bf4 g5 38.Kg5 Rg6 39.Kf5 Rg3 40.Rh1 Kg7 41.Ke5 Rg6 42.Nf5 Kf8 43.Rh8 1–0. Boxleitner – Binder.

7.a4 b6 8.Na3 Bb7 9.Nc4 0–0 10.Be2 Nbd7 11.d3 Qc7 12.0–0 Rfd8 13.Qc2 Nd5 14.Rfd1 Bf6 15.Bf6 N7f6 16.d4 cd4 17.Nd4 Rac8 18.Rac1 Qb8 19.Qb2 Ne7 20.Qa3 Ng6 21.Nd2 h6 22.Bf3 Bf3 23.N2f3 Rd5 24.Nc6 Qb7 25.Rd5 Nd5 26.Qd6 Kh7 27.Ra1 Qc7 28.Qc7 Rc7 29.Kf1 f6 30.Nfd4 e5 31.Nf5 Nde7 32.Nfe7 Ne7 33.Ne7 Re7 34.Rc1 Rd7 35.Ke2 ½–½. Lehr – Krull, 1993.

7.Bc4 b6 8.0–0 Bb7 9.Be2?! (9.d3!?; 9.d4!?) 9...0–0 10.d4 Nbd7 11.Nbd2 Rc8 12.Rc1 Ne4 13.Ne4 Be4 14.Nd2 Nf6? (14...Bb7) 15.dc5! Bd5 16.c6 Qd6 17.a4 +– Rfd8 18.Nf3 Qc7 19.Be5 Bd6 20.Bd6 Rd6 21.Qc2 Bf3 22.Bf3 Rcd8 23.Rfd1 g6 24.h3 Kg7 25.Rd6 Rd6 26.Rd1 Ne8 27.Rd6 Qd6 28.Qc3 Kf8? 29.Qh8 Ke7 30.Qh7 Qe5 31.Qh4 Nf6 32.Qb4 Ke8 33.Qd4 Qc7 1–0. Wilting – Clausen, Bocholt 1969 (Adam).

7.Bc4 Nbd7 8.a4 b6 9.0–0 Bb7 10.d3 Qc7 11.Nbd2 0–0 12.e4 Ng4 13.h3 Nge5 14.Qc2 Nf3 15.Nf3 Bf6 16.Rae1 Bb2 17.Qb2 Qf4 18.Re3 Kh8 19.g3 Qh6 20.Nh4 Qf6 21.Qf6 Nf6 22.f4 g6 23.Kh2 Kg7 24.a5 Rfe8 25.a6 Bc8 26.g4 Bd7 27.Ref3 Rf8 28.g5 Ne8 29.e5 Nc7 30.Rb1 Rad8 31.Ng2 Nd5 32.h4 h5 33.Ne3 ½–½. Borrmann – Vaeino, corr 2.CIF–ch 1987.

6.Be2 0–0

7.0–0 Nbd7 8.a4 b6 9.c4 Bb7 10.Na3 =. Hecht – Berner, Traben–Trarbach 1956.

7.0–0 Nbd7 8.a4 b6 9.h3 Bb7 10.d3 Qc7 11.Nbd2 e5 12.Nh2 Bd6 13.Ng4 Ng4 14.hg4 f5 15.gf5 Rf5 16.e4 Rg5 17.ed5 Bd5 18.Ne4 Rg6 19.c4 Bb7 20.Bh5 Rh6 21.Bc1 Re6 22.Qg4 Nf8 23.Qg3 Be7 24.Bg4 Rg6 25.Qh3 Bc8 26.Bc8 Rc8 27.Nc3 Bf6 28.Nd5 Qd7 29.Qd7 Nd7 30.Bb2 Nf8? 31.Be5! Kf7 32.Bf6 gf6 33.Rfe1 Ne6 34.a5 Rcg8 35.g3 h5 36.ab6 h4 37.Ra7 1–0. Sternik – Januszewski, Olsztyn 1990.

7.0–0 Nbd7 8.c4 b6 9.d4 Bb7 10.Nc3 Rc8 11.dc5 Nc5 12.Rc1 dc4 13.Bc4 Qc7 14.Qe2 Rfd8 15.Nd4 Qb8 16.Rfd1 Ne8 17.Qg4 Bf6 18.a4 Kh8 19.Ba2 Qa8 20.Bb1 Nd6 21.h4 h6 22.h5 a6 23.ba6 Qa6 24.Ndb5 Nb5 25.ab5 Qa8 26.Bc2 Rd1 27.Rd1 Rd8 28.Ra1 Qb8 29.Qe2 Qc7 30.Bb1 Ba8 31.Qc2 Kg8 32.Qh7 Kf8 33.Ra8 Ke7 34.Rd8 Qd8 35.Qc2 (50.) 1–0. Kreuzer – Dressler, Weinheim 1986.

7.0–0 Nbd7 8.d3 Qc7 9.c4 dc4 10.dc4 b6 11.a4 Bb7 12.Nc3 Rad8 13.Qc2 Ng4 14.h3 Bf3 15.hg4 Bb7 16.f4 h6 17.Bd3 Rfe8 18.Ne4 Nf6 19.Be5 Qc8 20.Nf6 gf6 21.Bb2 Qc7 22.Rad1 e5 23.fe5 fe5 24.Bh7 1–0. Kaplan – Dietrich, Havanna 1966.

7.a4 Nbd7 8.c4 Qc7 9.Qc2 b6?! 10.Na3 Bb7 11.Rc1 Rac8 12.0–0 dc4 13.Nc4 Ng4 14.g3 Ndf6 15.Nfe5 Rfd8 16.Qd1 Ne5 17.Be5 Qd7 18.Bf3. Schiffler – Bremer, corr ICCA–tT 1950.


6.a4 Bg7 7.c4 b6 8.Nc3 Bb7 9.Be2 0–0 10.d4 cd4 11.Nd4 dc4 12.Bc4 Bg2 13.Rg1 Bd5 (13...Bb7 14.Qe2–/+) 14.Be2 Ne4 15.Ne4 Be4 16.Qb3 Nd7 17.Bf3?? (better is 17.Ne6 fe6 18.Qe6 Rf7 19.Bc4=+) 17...Bf3 18.Nf3 Nc5 19.Qc4 Bb2 20.Rd1 Qf6 21.Nd4 (21.Qe2 Rfd8 22.Rd8 Rd8–+) 21...Rad8 22.Nc6 Rd1 23.Kd1 Qf3 (23...Qf2!? 24.Re1–+) 24.Ke1 (24.Qe2 Qd5 25.Ke1 Bf6–+) 24...Qe4 (better is 24...Ne4 25.Qc2 Bc3 26.Kf1 Qh3 27.Rg2 Nd2 28.Ke2–+) 25.Qe4 Ne4 26.Ne7 Kg7 27.Nc6 Nc5 28.h4 (28.f3 a5–+) 28...h5 29.Ne5 (29.f3–+) 29...Be5 30.f4 Bf4 (better is 30...Bf6 31.Kd2–+) 31.ef4 Na4 32.Ke2 (32.Rg3 Rc8–+) 32...Nc3 33.Ke3 Nb5 34.f5 (34.Rc1 Rd8–+) 34...ef5 35.Kf4 (35.Rb1 Re8 36.Kd3 Rd8 37.Ke3 Na3–+) 35...Re8 36.Rb1 Re4 37.Kg3 a6 38.Rc1 (38.Rb2 Rg4 39.Kh3 Nd4–+) 38...Re6 (38...Rg4!? 39.Kf2 Rh4 40.Ra1–+) 39.Rc8 (39.Rb1 Nc3 40.Rb3 Ne4 41.Kg2 b5–+) 39...Nd4 40.Ra8 a5 41.Rd8 (41.Ra6 f6 42.Ra7 Kh6–+) 41...Kf6 (better is 41...Re4–+) 42.Rd4 b5 43.Rd5 (43.Rd8–+) 43...Rb6 (44.Kf4 a4–+) 0–1. MammaMia – Putte8, Live Game Caissa's Web, 2004.

6.Be2 Bg7 +=.

6.c4 Bg7=

7.Be2 0–0 8.0–0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 dc4 12.Qa4 (12.Na3 A) 12...Qd5 A1) 13.Bc4 Qf5 (13...Qh5 14.Ne5 Rd8 15.d4 cd4+=; 13...Qe4 14.d4 Rd8 15.Qe1 Nbd7+=) 14.d4 Rd8 15.Bd3 Qh5+=; A2) 13.Qc2 Qe4 (13...Nbd7 14.Nc4 Rd8 15.d3 Qh5+/–; 13...Rd8 14.Be5 Nbd7 15.Bc7 Re8+/–; 13...Bd7 14.Be5 Qe4 15.Qb2 Ne8+/–; 13...h6 14.Bc4 Qh5 15.Be2 Nbd7+=) 14.Qe4 Ne4 15.Bg7 Kg7+=; A3) 13.Be5 Nbd7 14.Bc4 Qe4 15.Bd6 Re8+=; A4) 13.Bc3 Rd8 (13...h6 14.Nc4 Nbd7 15.d3 b6+=; 13...Nbd7 14.Nc4 Rd8 15.d3 Qf5+=; 13...b6 14.Nc4 Qd8 15.d4 Nd5+=; 13...Re8 14.Nc4 Nbd7 15.d3 e5+= ) 14.Nc4 Nbd7 15.d3 Qf5+=; A5) 13.Nc4 Bd7 (13...Nbd7 14.d3 Rd8 15.e4 Qh5+/–) 14.Nce5 Rd8 15.d4 h6+=; B) 12...Qa5 13.Qc1 B1) 13...Rd8 14.Bc3 Qa8 (14...Qb6 15.Qb2 Nbd7+/–) 15.Qb2 Nbd7+=; B2) 13...b6 14.Bc3 Qa8 15.Nc4 Nbd7+=; B3) 13...Nd5+= 14.Bg7 Kg7 15.e4 (15.Bc4 Nd7+=) 15...Nf6+=; 12.Bc4 Nbd7 (12...b6; 12...Qe7) A) 13.d4 b6 (13...Qe7; 13...Nb6; 13...Qc7; 13...cd4) 14.Qe2 (14.dc5 Nc5 15.Qe2 Bb7=) 14...Bb7 15.dc5 Nc5=; B) 13.Qc2 b6 (13...Qe7) 14.d4 Bb7 15.Nbd2 Qc7=) 12...Nbd7= (12...b6 13.Qa7 Nbd7 14.Bc4 Qe7 15.d4 cd4+=; 12...Qe7 13.Na3 (13.Rd1) 13...Rd8 (13...Nbd7 14.Nc4 Rd8 15.Rd1 Nd5+=; 13...c3 14.Bc3 Nbd7 15.Nc4 Rd8+=; 13...h6 14.Nc4 Nbd7 15.Qc2 Rd8+=; 13...Re8 14.Nc4 Nbd7 15.Rd1 Rd8+=) 14.Nc4 Nbd7 15.Nce5 Ne5=; 12...h6 13.Qc4 Qd5 (13...Nbd7 14.d4 b6 15.dc5 Nc5+=; 13...b6 14.d4 Nbd7 15.dc5 Nc5+=) 14.Qf4 Nbd7 15.Nc3 Qh5+=) 13.Na3 (13.Qc4 b6 (13...Qe7 14.d4 b6 15.dc5 Nc5=) 14.d4 Bb7 15.Rd1 Bd5=) 13...Nb6 (13...Qc7 14.Qa7= (14.Nc4 b6 15.d4 Bb7=) 14...c3 15.Bc3 e5=; 13...b6 14.Nc4 Bb7 15.d4 Qc7= (15...Qb8=)) 14.Qa7 Nfd5 (14...Re8 15.Nc4 Nc4+=) 15.Bg7 Kg7 16.Nc4 Bd7 17.Qb7 (17.Na5 Nc8 18.Qb7 Nd6=) 17...Bb5= 18.Rc1 Qb8 (18...Nf6 19.d3 Bc4 20.dc4=) 19.Qb8 Rb8 20.Kf1 Nc4 (20...Bc4 21.Bc4 Nc4 22.Rc4=) 21.Bc4 Bc4 (21...Kf6 22.Be2=) 22.Rc4 Rc8 (22...Rb5!?=) 23.d4+/– Kf6 (23...Rc7 24.Rc5 (worse is 24.dc5 Nb6 25.Rc1 Nd7=) 24...Ra7 25.Rc2+/–) 24.Nd2 (24.e4 Nb4+/–) 24...Ke7 (24...Ra8 25.Rc5 Ra2 26.Ke2+/–) 25.Ne4 Nb6 (25...f6 26.Ke2+/–) 26.Rc5 Rc5 27.Nc5 f5 28.Ke2 g5 29.Kd3 Kd6 30.e4 h6 31.ef5 ef5 32.Nb7 (32.Nb7 Kd7 33.g3+/–) 1–0. Belov,PI – Kolesnikov,AY, corr semi Nipsegorodskaya oblast RUS, 1994.

7.Be2 0–0 8.0–0= b6 9.d3 dc4 10.dc4 Bb7 11.Nbd2 Nbd7 12.Qc2 Qc7 13.h3 Rfd8 14.Rfd1 Nf8 (14...a6 15.ba6 Ra6 16.Bd3=) 15.Nf1 (15.Be5 Qe7+=) 15...Ne4 (15...a6 16.Be5 Qe7 17.Rd8 Rd8 18.ba6 Ba6 19.Rb1+=) 16.Bg7+= Kg7 17.Qb2 f6 18.N3d2 Nd6 19.Ng3 e5 20.Rac1 a5 21.a4 Ne6 22.Nb3 Ng5 23.f3 Bc8 24.e4 Ne6 25.Bd3 Nf7 26.Bb1 Nf4 27.Ne2 Be6 28.Nf4 ef4 29.Ba2 Ne5 30.Rd8 (30.Nd2 Nd3 31.Qc3 Nc1 32.Qc1 Rd7–+) 30...Rd8 31.Na5?? (better is 31.Nd2=+) 31...Nd3–+ 32.Qc2 Nc1 (32...ba5 33.Rd1 Nb4 34.Qe2 Rd1 35.Qd1 Na2 36.Qd3–+) 33.Nc6 Na2 34.Nd8 Qd8 (35.Qa2 Qd4 36.Qf2 Qc4–+) 0–1. Helm – Grey, GT–87–071A, 1988.

7.Be2 dc4 8.Nc3 =.

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