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TESTD830 Release 2017-07-06
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7

Table of contents:

(...)

6.d4 0–0 7.Ba3 =+.

6.d4 dc4 7.Bc4 0–0 (7...Nb6 8.Bd3=+) 8.Nf3 c5 (8...a6 9.ba6 ba6 10.0–0=) 9.bc6= bc6 10.0–0 c5 11.Nbd2 (11.Nc3 Nb6 12.Bb5 cd4 13.Qd4 Bb7=) 11...Bb7 12.Rc1 Qe7 13.Nb3 cd4 14.Nbd4 Nb6 15.Bb5 (15.Bd3 Rfd8=) 15...Ba3 (15...Rfd8!?=) 16.Ba3 Qa3 17.Qb3 Qb3 18.ab3 Nfd5 (18...Bf3 19.Nf3 a6 20.Bc6+=) 19.Ne5 Rfc8 20.Nc4 (20.e4 Nf4 21.g3 a6+=) 20...Nc4 21.Rc4 Kf8 (21...e5 22.Nc6 a6 23.Ba4=) 22.Rfc1 Ne7 (22...e5 23.Nc6 a6 24.Ba4=) 23.f4 (23.Rc8 Rc8 24.Rc8 Nc8=) 23...Bd5 (23...Rc4 24.Rc4 Nd5 25.Kf2=) 24.Rc7+= Rc7 25.Rc7 Be4 (25...Nf5 26.Nf5 ef5 27.Bd7=) 26.Kf2 Nd5 27.Rc5 (27.Rd7 Nf6 28.Rc7 Ng4 29.Ke2 Bg2=) 27...a6 28.Bc4 Ke7 29.Bd5 (29.f5 h6=) 29...Bd5 30.Rc7 Kf8 (30...Kf6 31.g4=) 31.g4+= Rb8 ½–½. Schulze,H – Licha,Matthias, Mittelfranken–ch, 1991.

6.d4 c5 =+.

6.Nf3 e5 7.cd5 Nd5 8.e4 Nf4 9.d4 f6 (9...ed4 10.Qd4 Ne6 11.Qd2=) 10.Nbd2 (10.g3 Ne6=) 10...0–0 11.Bc4 Kh8 12.0–0 ed4 13.Bd4 Ne5 14.Be3 Nc4 (14...Bg4!? 15.Bf4 Nc4 16.Bd6 Nd6=) 15.Nc4+/– Bg4 16.h3 Bf3 17.Qf3 Ng6 18.Qf5 Be5 (18...Qe7 19.Rad1+/–) 19.Rad1 Qe8 20.f4 Ne7 (better is 20...Bc3+/–) 21.Qe6+– Bd6 22.e5 Bb4 23.a3 Bc3 24.Rc1 Qb5 25.Rc3 (25.Qe7?! Qc4 26.Qc5 Qc5 27.Bc5 Bd2 28.Bf8 Be3 29.Kh1 Bc1 30.Rc1 Rf8 31.Rc7 g5+/–) 25...Nd5 26.a4 Qb4 27.Rd3 Ne3 (27...c6 28.Nd6 fe5 29.Qe5+–) 28.Ne3 fe5 29.fe5 (29…Rf1 30.Nf1+–) 1–0. Trkn – guest6545, ICC, 2004.

6.Nf3 c5

(if NOT 7.bc6 bc6 --> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 TESTD600).

7.bc6 bc6 8.Nc3 e5 9.cd5 cd5 10.Nb5 Bb8 11.Ba3 Nb6 12.Qc2 Bd7 13.Qb2 a6 14.Nd6 Bd6 15.Bd6 e4 16.Qe5 Be6 17.Nd4 Qc8 18.Nf5 (18.Ne6?! Qe6 19.Qe6 fe6+=) 18...Kd7 19.Ba3 (19.Ng7 Nc4 20.Qf6 Kd6 21.Nf5 Kc7 22.Bc4 Qd8 23.Qe5 Kc6 24.Nd4 Kd7 25.Bd5 Bd5 26.Qd5 Ke8 27.Qe5 Kd7+–) 19...Qc7 (19...Qb8!? 20.Qb8 Rhb8 21.Ng7 Nc4 22.Bc4 dc4=) 20.Qc7+= Kc7 21.Ng7 Bd7 22.Bb2 Ng4 23.h3 Nh6 24.Nh5 Rhc8 25.Be5 Kd8 26.Bf6 Kc7 27.Bd4 Nf5 28.Be5 Kb7 29.Nf6 h6 30.Be2 (30.Nd7?! Nd7 31.Rb1 Ka7+/–) 30...Be6 31.0–0 Nc4 (31...Rc2!?+/–) 32.Rfb1 Ka7 33.Bc4 dc4 34.g4 Rc5 35.gf5 Re5 36.fe6 Re6 37.Nd5 Rd6 38.Nc3 f5 39.Rb4 Rc6 40.Rab1 Rg8 41.Kf1 Rcc8 (41...Rg7 42.Ke2+–) 42.R1b2 Ka8 (42...Rb8 43.Ke2+–) 43.Ke2 (43.Rb6 Ka7 44.Rb7 Ka8+–) 43...Ka7 (43...Rb8 44.Nd5+–) 44.Rb7 Ka8 45.Na4 (better is 45.Nd5 Rg1 46.Nc7 Rc7 47.Rc7 Rh1+–) 45...Rc6 46.Rf7 1–0. Novikov,Konstantin Ivan – Kazakov,Nikolay, Ch Chess Club (open), 2002.

6.f4 Nb6

7.cd5 ed5 8.Nf3 =+.

7.cd5 Nbd5 8.Nf3 =+.

6.Nf3 0–0

7.a3 a6 8.Nc3 c5 (8...Nb6 9.cd5 ed5 10.ba6=) 9.Qb3 Nb6 10.d3 Controls e4 10...a5 (10...Bd7 11.a4=) 11.a4 (11.Be2 Rb8=) 11...Qe7 12.Be2 Rd8 13.0–0 Bd7 14.Rfe1 Be8 15.Nd2 Qc7 16.g3 Consolidates f4 16...h5 17.Bf3 h4 (17...Be5 18.Bg2=) 18.cd5 ed5 19.Nd5 Nfd5 20.Bd5 hg3 (20...Bg3 21.Bb7 (21.fg3?! Rd5 22.e4 Rg5+=) 21...Qb7 22.hg3 hg3 23.fg3+/–) 21.hg3+= Bg3 (21...Nd5 22.Qd5 Bg3 23.Qg5 Bh2 24.Kg2+/–) 22.Qc3 (better is 22.Bb7!? Bh2 23.Kh1 Qb7 24.Kh2+=) 22...Be5= 23.Bf7 (23.Qe5 Qe5 24.Be5 Nd5=) 23...Bf7 (23...Qf7!? 24.Qe5 Rd3–/+) 24.Qe5= Qe5 25.Be5 Rd3 26.Ne4 Rd5 (26...Nd7 27.Bh2=) 27.f4 (27.Bf4 Rh5=) 27...Nd7 (27...Nc4 28.Bc3+=) 28.Bc3 b6 29.Rad1 Rd8 30.Kf2 Kf8 31.Rg1 Nf6 32.Bf6 Rd1 33.Bd8 Rd8 34.Rc1 Bb3 35.Nc3 Rd2 36.Kf3 Kf7 37.Ke4 Kf6 38.Kf3 g6?? (better is 38...Ke6= would hold out) 39.Ke4 0–1. Wiszniowski,Eugeniusz – Materski,Chrystian (2040), Milanowek–ch Poland, 2000.

7.Qb3 a5 A) 8.Ba3 A1) 8...Ba3 9.Qa3 (9.Na3 e5 10.d4 a4 11.Qc3 ed4 12.Nd4+=) 9...dc4 10.Bc4 Nb6 11.Be2 Nfd5 12.0–0=; A2) 8...a4 9.Qb2 (9.Qc2 Ba3 10.Na3 Qe7 11.Nb1 e5 12.Nc3+=; 9.Qc3 Ne4 10.Qc2 Ba3 11.Na3 Qe7 12.Qb2=) 9...Ba3 10.Na3 c5 11.bc6 bc6 12.cd5=; B) 8.Nc3 Nb6 9.Na4 Nc4 10.Bc4 dc4 11.Qc4 Re8 12.Be5=; C) 8.d4 c5 (8...a4 9.Qc2 c5 10.bc6 bc6 11.a3 Ba6 12.Nc3=) 9.Ba3 (9.Qc2 cd4 10.Nd4 e5 11.Nf3 Qc7 12.Nbd2+=; 9.Bd3 cd4 10.ed4 a4 11.Qc2 dc4 12.Bc4+=; 9.Be2 cd4 10.Bd4 e5 11.Bb2 e4 12.Nfd2+=; 9.Qd1 cd4 10.Qd4 e5 11.Qh4 Bb4 12.Bc3+=) 9...b6 10.Be2 a4 11.Qc2 e5 12.dc5=; D) 8.Qc2 a4 9.Bf6 (9.d4 c5 10.bc6 bc6 11.a3 Ba6 12.Nc3=) 9...Nf6 10.c5 Be7 11.d4 Ra7 12.Bd3=; E) 8.Be2 a4 9.Qc2 e5 10.d4 e4 11.Nfd2 Re8 12.Nc3=.

7.Qb3 Nb6 A) 8.Na3 A1) 8...a6 9.d4 dc4 10.Nc4 Nc4 11.Bc4 ab5 12.Bb5+=; A2) 8...a5 9.Rc1 (9.Be2 a4 10.Qd3 Re8 11.Rc1 Qe7 12.cd5+=; 9.Bd3 a4 10.Qc3 dc4 11.Bc4 Nbd5 12.Qd3+=) 9...Nbd7 10.cd5 ed5 11.Be2 Qe7 12.0–0=; A3) 8...Bd7 9.Ne5 (9.d4 dc4 10.Bc4 a5 11.ba6 ba6 12.0–0+=) 9...Ne4 10.Nd7 Nd7 11.cd5 Ndf6 12.Nc4=; A4) 8...Qe7 9.cd5 (9.Be2 e5 10.0–0 Bg4 11.h3 Bh5 12.d3+=; 9.Rc1 e5 10.cd5 e4 11.Nd4 Nbd5 12.f3+=; 9.Bd3 e5 10.c5 Bc5 11.Ne5 Bd6 12.Nf3+=) 9...ed5 10.Be2 Be6 11.0–0 Rae8 12.Rae1+=; B) 8.d3 B1) 8...Re8 9.Be2 (9.Qc2 Qe7 10.Be5 dc4 11.dc4 Be5 12.Ne5+=; 9.Be5 dc4 10.dc4 Nbd7 11.Bd6 cd6 12.Be2+=) 9...dc4 10.dc4 e5 11.0–0 e4 12.Nd4=; B2) 8...a5 9.Nbd2 (9.Be5 dc4 10.dc4 Be5 11.Ne5 Qd6 12.f4+=; 9.Qc2 Qe7 10.Be2 dc4 11.dc4 e5 12.c5=; 9.Be2 dc4 10.dc4 Qe7 11.0–0 e5 12.c5=) 9...a4 10.Qc2 dc4 11.dc4 Nbd7 12.Rd1=; B3) 8...a6 9.ba6 (9.Nc3 c6 10.bc6 bc6 11.Rb1 Rb8 12.Qc2+=; 9.Be5 ab5 10.cb5 Be5 11.Ne5 d4 12.Nd2–/+) 9...ba6 10.Qc2 Qe7 11.Nbd2 Rd8 12.Rb1=; B4) 8...c6 9.Be2 cb5 10.cb5 Re8 11.Be5 Be5 12.Ne5=; B5) 8...Qe7 9.Nc3 (9.Nbd2 e5 10.Be2 dc4 11.Nc4 Nc4 12.Qc4+=; 9.Be5 dc4 10.dc4 Nbd7 11.Bd6 cd6 12.Be2+=; 9.Be2 a6 10.cd5 ab5 11.de6 Be6 12.Qb5+=; 9.a4 dc4 10.dc4 Rd8 11.Be2 e5 12.a5+=) 9...a5 10.ba6 ba6 11.Qc2 dc4 12.dc4+=; C) 8.Be5+= C1) 8...a5 9.Qc2 (9.d3 dc4 10.dc4 Be5 11.Ne5 Qd6 12.Nd3+=; 9.Bd6 cd6 10.cd5 Nbd5 11.d4 a4 12.Qa3=) 9...dc4 10.Bc4 Nc4 11.Qc4 Be5 12.Ne5=; C2) 8...Ne4 9.d4 dc4 10.Bc4 Nc4 11.Qc4 Bd7 12.Qb3=; C3) 8...dc4 9.Bc4 Nc4 10.Qc4 a6 11.Nc3 ab5 12.Nb5=; C4) 8...a6 9.cd5 (9.Nc3 ab5 10.Nb5 Be5 11.Ne5 dc4 12.Bc4+=; 9.Bd6 cd6 10.Nc3 dc4 11.Bc4 Nc4 12.Qc4+=) 9...ed5 10.d4 ab5 11.Bb5 Bf5 12.0–0=; C5) 8...Nc4 9.Bc4 dc4 10.Qc4 a6 11.Nc3 b6 12.Bd6+=; D) 8.Ba3 dc4 (8...Nc4 9.Bc4 dc4 10.Qc4 e5 11.Bd6 cd6 12.Qh4+=) 9.Bc4 e5 10.d3 Bg4 11.Nfd2 Nc4 12.Nc4+=; E) 8.cd5 E1) 8...Nbd5 9.Nc3 (9.d4 Bd7 10.Nc3 a6 11.ba6 ba6 12.Qc2=; 9.d3 a5 10.Nc3 Nc3 11.Bc3 Nd5 12.a3+=; 9.Be5 Be5 10.Ne5 Nd7 11.Nf3 c5 12.bc6=; 9.Bd3 a6 10.Nc3 Nb4 11.Bb1 Be7 12.0–0=) 9...Nc3 10.Bc3 Bd7 11.Qb2 Be7 12.Ne5=; E2) 8...ed5 9.Be2 (9.Qc2 Bg4 10.Ng5 g6 11.Qc3 Be7 12.a4=; 9.Bd4 Re8 10.Be2 Bg4 11.0–0 c5 12.bc6=; 9.Bd3 Re8 10.0–0 Bg4 11.Nd4 Nbd7 12.Qc2+=; 9.Nc3 Bg4 10.Be2 c5 11.0–0 Re8 12.d3+=) 9...Re8 10.0–0 c5 11.bc6 bc6 12.Qc2=.

7.Qb3 c5 A) 8.d3 A1) 8...a6 9.Nc3 (9.Na3 d4 10.ed4 cd4 11.Nd4 Qa5 12.Kd1–/+) 9...Qb6 10.cd5 ed5 11.Nd5 Nd5 12.Qd5=; A2) 8...dc4 9.Qc4 a6 10.Nc3 Qa5 11.ba6 Ra6 12.Qb5+=; B) 8.Nc3 dc4 (8...Nb6 9.d3 dc4 10.dc4 e5 11.Bd3 Qe7 12.Ng5=) 9.Qc4 (9.Bc4 Nb6 10.0–0 e5 11.Be2 e4 12.Ng5+=) 9...e5 10.Qh4 Re8 11.Bd3 Nb6 12.Bc2=; C) 8.a3 C1) 8...b6 9.Be2 (9.d3 Bb7 10.Be2 e5 11.0–0 a6 12.ba6+= –0.34) 9...Bb7 10.cd5 ed5 11.0–0 Re8 12.Nc3=; C2) 8...Nb6 9.d4 (9.d3 Re8 10.Be2 e5 11.0–0 dc4 12.dc4+=) 9...cd4 10.Bd4 Nc4 11.Bc4 dc4 12.Qc4+=; D) 8.Be2 D1) 8...a6 9.Nc3 (9.Na3 b6 10.ba6 Ba6 11.d3 dc4 12.Nc4=; 9.0–0 ab5 10.Qb5 e5 11.d3 Ra5 12.Qb3+=) 9...dc4 10.Qc4 b6 11.d4 Bb7 12.0–0=; D2) 8...dc4 9.Bc4 (9.Qc4 e5 10.Qc2 a6 11.Nc3 b6 12.0–0=; 9.Qc2 Nb6 10.Na3 Re8 11.Nc4 Nc4 12.Bc4=) 9...Nb6 10.Na3 Bd7 11.0–0 Qe7 12.Ne5=.

7.Qb3 Nc5 8.Qc2 A) 8...c6 9.Nc3 (9.bc6 bc6 10.Be5 Nce4 11.Bd6 Nd6 12.Ne5=) 9...Bd7 10.d4 Nce4 11.c5 Bc7 12.bc6=; B) 8...Nce4 9.d3 (9.Be2 dc4 10.Bc4 a6 11.0–0 ab5 12.Bb5=; 9.Bd3 a6 10.0–0 ab5 11.cb5 Qe7 12.Be5=) 9...Bb4 10.Ke2 Nd6 11.c5 Nde8 12.a3+=; C) 8...a6 9.Nc3 (9.d4 Nce4 10.c5 Be7 11.Ne5 Nd7 12.Nd7=) 9...Nce4 10.ba6 ba6 11.cd5 Nc3 12.Bc3=.

7.Qb3 Qe7 8.Nc3 (8.d4 c5+= 9.bc6 bc6 10.c5 Bc7 11.Qa4 Bb7 12.Bd3=) 8...Nc5 (8...Nb6 9.d4 (9.cd5 ed5 10.Be2 Re8 11.Qc2 Bg4 12.a4+=; 9.d3 dc4 10.dc4 e5 11.Be2 Rd8 12.Rd1+=) 9...dc4 10.Bc4 Nc4 11.Qc4= a6 12.0–0+=; 8...dc4 9.Bc4 (9.Qc4 e5 10.Qh4 Re8 11.Bc4 Nb6 12.Bb3+=) 9...e5 10.d4 e4 11.Nd2 Nb6 12.Be2=) 9.Qc2= dc4 (9...Nce4 10.d4 Bb4 (10...c6 11.bc6 bc6 12.Bd3=) 11.Bd3 a6 12.0–0=) 10.Bc4 e5 11.d4 Ncd7 (11...ed4 12.Nd4 Rd8 13.Rc1=) 12.Ng5 (12.0–0+=). De Visser,Arno – Notten, NBC, 1983.

7.Qc2 dc4 8.Bc4 e5 9.d3 Qe8 10.Nbd2 Nc5 (10...Nb6!?=) 11.d4 ed4 12.Bd4 Nce4 13.0–0 c5 14.Bb2 Nd2 15.Qd2 Be6 (15...Qe7 16.Rfd1 Rd8 17.Qc3=) 16.Be2 (better is 16.Qd6 Bc4 17.Bf6 gf6 18.Rfc1+–) 16...Ne4= 17.Qc2 Bd5 18.Rad1 Qe6 19.Rd5 Qd5 20.Rd1 Qe6 (20...Qa2? 21.Bc4 Qa5 22.Qe4+–) 21.Bd3 Nf6 22.Ng5 Qe7 23.Nh7 (23.Bh7 Kh8 24.Bg8 Bh2 25.Kh2 Ng4 26.Kg3+–) 23...Nh7= 24.Bh7 Kh8 25.Qf5 (better is 25.Be4=) 25...Rad8?? (better is 25...Qh4 26.Rd6 Qh7 27.Qh7 Kh7–/+) 26.g3 (better is 26.Qh5 Qh4 27.Qh4 Be7 28.Rd8 Bh4 29.Rf8 Kh7 30.Rf7 Bd8+–) 26...Bc7?? (better is 26...Bg3 27.Rd8 Bf2 28.Qf2 Rd8+=) 27.Rd8 Rd8 28.Qh5 Qe8 29.Bg6 (29.Bf5 Kg8 30.Qh7 Kf8 31.Qg7 Ke7 32.Qf6 Kf8 33.Qh6 Ke7 34.Bf6 Kd6 35.Bd8 Kd5 36.Bc7 Qe7+–) 29...Kg8 30.Qh7 Kf8 31.Qg7 (better is 31.Bg7 Ke7 32.Qh4 Kd7 33.Bf5 Kd6 34.Qf4 Kd5 35.Qc7+–) 31...Ke7 32.Bf6 Ke6 33.Bd8 Bd8 34.Be4 (better is 34.Bd3!? Bf6 35.Bc4 Ke7+–) 34...Qb5 35.f4 (35.Qg4 Ke7+–) 35...c4+/– 36.f5 Ke7 37.f6 (better is 37.Qg5!? f6 38.Qg7 Kd6 39.Qg8+–) 37...Ke6= 38.Qg4 Kf6 39.Qh4 Qg5 40.Qg5 Kg5 41.Bb7 c3 42.Be4 Bc7 43.Kf2 Kg4 44.Kg2 a5 45.h3 Kg5 46.Bc2 Bd6 47.e4 Kf6 48.Kf3 Ke5 49.h4 Kf6 (49...Bc5 50.h5+=) 50.g4+/– Kg7 51.g5 Bc5 (51...f6 52.Kg4+/–) 52.Kg4 (52.h5!? Bd6+–) 52...Bd4+/– 53.h5 Kh7 (53...f6 54.h6 Kf7 55.Kf5 fg5 56.Bb3 Kf8 57.Kg5 Be3 58.Kg6+/–) 54.Kf5 Kg8 55.e5 Be3 56.Kf6 Bb6 57.Bb3 Bd8 58.Kf5 Kg7 59.a4 Bc7 60.e6 fe6 61.Ke6 (61.Be6?? c2–+) 61...Bd8 62.Kf5 Kh7 63.Bc2 Bc7 (63...Kh8 64.h6 Be7 65.g6+–) 64.Kf6 (better is 64.h6 Bb6 65.Ke5 Kg8 66.g6+–) 64...Kg8 65.h6 Bd8? (65...Bf4+–) 66.Kg6 Bc7 67.Kh5 (67.Kf5 Bd6+–) 67...Bb6 68.g6 Bd4 69.g7 Bg7 70.hg7 Kg7 1–0. Sternik,Ryszard – Mephisto Exclusiv, Olsztyn, 1993.

7.Qc2 c5 A) 8.Na3 A1) 8...Qe7 9.d3 (9.Bd3 e5 10.Nh4 e4 11.Be2–/+) 9...e5 10.cd5 Nd5 11.Nc4+=; A2) 8...Re8 9.Be2 Qe7 10.d3 d4 11.0–0+=; B) 8.cd5 ed5 (8...Nd5 9.Bd3 N7f6 10.a3 Re8 11.0–0=) 9.Be2 (9.Nc3 Ne5 10.Ne5 Be5 11.Be2+=) 9...a6 10.Nc3 Re8 11.0–0=; C) 8.Be2 C1) 8...a6 9.Nc3 (9.Na3 Qc7 10.0–0 d4 11.Rfb1=; 9.cd5 ed5 10.Nc3 Re8 11.0–0=; 9.0–0 ab5 10.cd5 ed5 11.Bb5=) 9...dc4 10.Bc4 b6 11.Qd3=; C2) 8...Qe7 9.0–0 (9.d3 a6 10.Nc3 Rd8 11.ba6+=; 9.d4 cd4 10.Nd4 dc4 11.Bc4+=; 9.cd5 ed5 10.0–0 Re8 11.a4=; 9.Nc3 dc4 10.Bc4 Nb6 11.Be2+=) 9...e5 10.d3 dc4 11.Qc4=; C3) 8...Qc7 9.d3 (9.cd5 ed5 10.0–0 a6 11.Nc3=; 9.Nc3 dc4 10.Bc4 Rd8 11.0–0+=; 9.Na3 Rd8 10.cd5 ed5 11.0–0=; 9.a3 dc4 10.Bc4 e5 11.d3=) 9...a6 10.ba6 Ra6 11.Nc3=; C4) 8...Nb6 9.d3 Re8 10.a4 dc4 11.dc4=; C5) 8...b6 9.Nc3 (9.0–0 a6 10.cd5 ed5 11.d4+=) 9...a6 10.cd5 ed5 11.0–0=; C6) 8...Re8 9.cd5 (9.0–0 e5 10.d3 dc4 11.Qc4=; 9.d3 e5 10.0–0 dc4 11.Qc4=; 9.Na3 Qe7 10.d3 d4 11.0–0+=) 9...ed5 10.0–0 Qe7 11.a4=; D) 8.bc6 bc6 9.Be2 (9.cd5 cd5 10.Nc3 a6 11.Be2+=; 9.d4 Ba6 10.Nbd2 c5 11.cd5=; 9.Nc3 Ba6 10.d3 Nb6 11.cd5+=; 9.Bf6 Qf6 10.Nc3 Ba6 11.Rc1+=) 9...Rb8 10.Nc3 Qa5 11.0–0= ; E) 8.Bd3 E1) 8...Qe7 9.Nc3 (9.Ng5 h6 10.Nh7 Nh7 11.Bh7+=; 9.cd5 ed5 10.0–0 Re8 11.Rc1+=) 9...Nb6 10.cd5 ed5 11.0–0+=; E2) 8...Re8 9.Nc3 (9.cd5 ed5 10.0–0 c4 11.Be2+=) 9...Nb6 10.cd5 ed5 11.0–0+=; F) 8.Nc3 F1) 8...Nb6 9.d3 (9.cd5 ed5 10.Be2 Re8 11.0–0+=) 9...Bd7 10.Be2 e5 11.cd5=; F2) 8...a6 9.cd5 (9.ba6 ba6 10.Rb1 Rb8 11.Be2+=; 9.Be2 dc4 10.Bc4 b6 11.Ne4=) 9...ed5 10.Be2 Qe7 11.Ng5=; F3) 8...Qc7 9.Rc1 (9.Bd3 Re8 10.0–0 Nb6 11.Na4+=; 9.cd5 ed5 10.Be2 Re8 11.0–0=; 9.Rd1 Nb6 10.d3 Bd7 11.a4=; 9.Be2 dc4 10.Bc4 Rd8 11.0–0+=) 9...Re8 10.Be2 a6 11.0–0=; F4) 8...dc4 9.Bc4 Nb6 10.Be2 e5 11.0–0=; F5) 8...Re8 9.Be2 (9.d4 cd4 10.Nd4 e5 11.Nf5=; 9.d3 Qb6 10.a4 a5 11.Be2=) 9...dc4 10.Bc4 Nb6 11.Be2=.

7.Qc2 e5 A) 8.Nc3 e4 (8...c6 9.bc6 bc6 10.cd5 cd5 11.Nb5=; 8...dc4 9.Bc4 Nb6 10.Bd3 Re8 11.0–0=) 9.Nd4 dc4 10.Ne4 Ne4 11.Qe4=; B) 8.cd5 Nd5 9.Nc3 (9.Bc4 Nb4 10.Qc3 a6 11.Na3+=) 9...Nc3 10.dc3 Qe7 11.Bd3=; C) 8.d4 e4 9.Nfd2 (9.c5 Be7 10.Nfd2 a6 11.Nc3+=) 9...c6 10.Be2 Re8 11.Nc3=.

7.Nc3 Nc5 8.cd5 ed5 9.Be2 Bg4 10.h3 Bf3 11.gf3 Ne6 12.f4 Nc5 13.Rg1 Kh8 14.Nd5 Nce4 15.d3 Bb4 16.Nb4 Qd6 17.de4 Qb4 18.Qd2 Qd2 19.Kd2 Rfd8 20.Ke1 h6 21.Rd1 1–0. emeryt85 – trapezon, kurnik, 2013.

7.d3 a6 8.Be2 +=.

7.d3 c6 8.a4 (8.Nc3 cb5 9.cb5 a6+=) 8...a6 (8...e5 9.Be2+=) 9.bc6 (9.d4 dc4 10.bc6 bc6+=) 9...bc6 10.Bc3 (10.Be2 Rb8 11.Qc2 dc4 12.dc4 e5+=) 10...a5 (10...e5 11.Be2+=) 11.Nbd2 Bb4 (11...Rb8 12.d4+=) 12.Bb4= ab4 13.Nb3 (13.d4 c5=) 13...dc4 14.dc4 c5 15.Be2 Qc7 16.0–0 Rd8 (16...Bb7 17.a5+=) 17.Qc2 Bb7 18.Rfd1 (18.Nfd2 Ne5+=) 18...Ne4 19.Bd3 (19.Re1 Nc3–/+) 19...Ndf6 (19...Nc3 20.Rd2 Bf3 21.gf3 g6–/+) 20.Nfd2 (20.Be4 Be4 21.Qe2 Ng4+=) 20...Nf2 (better is 20...Nc3!? 21.Re1 Qd6–+) 21.Kf2+= Ng4 22.Ke2 Qh2 23.Be4 (23.Bh7 Kf8 24.Nf1 Qg1–+ (24...Qg2?! 25.Ke1–/+)) 23...Qg3 (23...Qg3 24.Bh7 Kh8–+) 0–1. Zobel,Wolfgang – Van Meggelen,Abram, corr NED–FRG, 1973.

7.d4 Ne4 8.c5= Be7 9.Bd3 c6 (9...a6 10.ba6 b6 11.cb6 cb6 12.Qc2=) 10.a4 e5 11.Qc2 ed4 12.ed4 Ndf6 13.Ne5 Bd7 (13...Nd7 14.0–0+=) 14.0–0+= Qc7 15.Nd7 Qd7 16.Bc1 h6 17.f3 Ng5 18.Bg5 hg5 19.Nd2 Qc7 20.Rfe1 Rfe8 21.Rab1 Qf4 22.Qc3 Bf8 (22...Nd7 23.a5+=) 23.a5+/– cb5 24.Bb5 Re1 25.Re1 g4 26.a6 (26.fg4 Ng4 27.Nf3 Qc7+/–) 26...ba6 27.Ba6 gf3 (27...g3 28.h3+=) 28.Nf3+/– Rb8 29.Bd3 Re8 30.Re8 Ne8 31.g3 (31.Qe1 Nc7+/–) 31...Qe3+= 32.Kg2 g6 33.h3 (33.Ne1 Bg7 34.Nc2 Qc1+=) 33...Bg7= 34.c6 Nc7 35.Qb3 Bf8 36.Qd1 Bd6 37.Qd2 (37.Qc2 f5=) 37...Qd2= 38.Nd2 ½–½. van den Braak,Jelle – Kedzierski, corr 3GMM–16, 1996.

7.d4 Qe7 8.c5 Nc5 9.dc5 Bc5 10.Nbd2 b6 11.Ne5 Qd6 12.Be2 (12.Nc6 Nd7+–) 12...Bb7 13.0–0 d4 (better is 13...a6!?+–) 14.Ndc4 Qd5 15.Bf3 Ne4 16.ed4 Bb4 17.Qa4 a5 18.ba6 (better is 18.a3 f6 19.ab4 ab4+–) 18...Be7 (18...Bd6 19.Ne3 Ra6 20.Qa6 Ba6 21.Nd5 ed5+–) 19.Ne3 Qd6 20.Qc2 Ra6 21.Be4 Be4 22.Qe4 h6 (22...Ra4 23.N3c4 Qb4 24.Rfb1+–) 23.d5 Rfa8 24.Nc6 Bf6 (24...Bg5 25.Be5 Qd7 26.de6 Qe6 27.Nd5+–) 25.Bf6 gf6 26.de6 Qe6 27.Qg4 (better is 27.Qc2 Kh8+–) 27...Qg4 28.Ng4 Kg7 29.Ne7 Kf8 (29...Ra2 30.Ra2 Ra2 31.Nf5 Kg6 32.Ngh6+–) 30.Nd5 Ra4 (30...Ra2 31.Ra2 Ra2 32.Nh6+–) 31.Ngf6 Ra2 32.Ra2 Ra2 33.Nc7 Kg7 34.Nfe8 Kf8 35.Rb1 Rb2 (35...Ra7+–) 36.Rb2 (36...b5 37.Rb5+–) 1–0. Tabor,J – Plinke,R, CompuServe, 1994.

7.d4 Re8 8.Be2 Ne4 9.0–0 Qf6 10.Nbd2 Qg6 11.Ne4 de4 12.Nd2 Nf6 13.c5 Bf8 14.Nc4 h5 15.a4 h4 16.Ne5 Qg5 17.a5 Nd7 18.Nd7 Bd7 19.a6 b6 20.c6 Bc8 21.Qc2 Qg6 22.f3 f5 23.fe4 fe4 24.Rf4 e5 25.Rh4 Bf5 26.Bc4 Be6 27.de5 Bc5 28.Be6 Re6 29.Re1 Rd8 30.Re4 Rd5 31.Qc4 Rd2 32.Rg4 Qf5 33.Rf1 Rc2 34.Rf5 Rc4 35.Rc4 1–0. Machete99 (2200) – lraj (2045), ICC, 2002.

7.cd5 Nd5 8.Be2 e5 9.Qb3 N5f6 10.d3 Re8 11.Nbd2 Nc5 12.Qc2 Bf5 13.e4 Bg4 14.h3 Bh5 15.0–0 Ne6 16.g3 Ng5 17.Ng5 Be2 18.Rfe1 Bh5 19.Kg2 Qd7 20.a4 Rad8 21.Nc4 h6 22.Nd6 cd6 23.Nf3 Bf3 24.Kf3 Qh3 25.Qc7 Rc8 26.Qd6 Rc2 27.Bc1 Ng4 28.Be3 Nh2 0–1. Frosinos,I – Kofidis,A, Ikaria, 1992.

7.Be2 c5 8.0–0 Qe7 (--> 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 Qe7).

7.Be2 Re8 8.0–0 c5 9.a4 b6 10.d3 Bb7 11.Nbd2 e5 12.cd5 Nd5 13.Nc4 (13.Qb3 Bc7=) 13...Bc7 14.Qb3 N5f6 (14...a6 15.Rfc1=) 15.e4 (15.Ng5 Re7=) 15...h6 (15...a6 16.Rfb1=) 16.g3 (16.a5 ba5 17.Bc3 a6 18.Na5 Qc8+=) 16...a5 (16...a6 17.Rfb1=) 17.Nh4 Nf8 (17...Bc8 18.Ng2=) 18.Ng2 (18.Rac1 Bc8=) 18...Bc8 (18...Ng6 19.f4=) 19.f4 Be6 (19...Ng6 20.f5 Nf8 21.Qc3=) 20.f5 (20.Rad1 Qe7=) 20...Bc4 21.Qc4 N8h7 22.Ne3 Kf8 (22...Qd7 23.Qc2=) 23.Kg2 (23.Bd1 Qd7+=) 23...Re7 (23...Qd7 24.Qc2=) 24.g4 (24.Qc3 Kg8=) 24...Ke8 (24...Qd7 25.Qc2=) 25.h4 (better is 25.Rac1=) 25...g5? (better is 25...Kf8=) 26.fg6+– fg6 27.g5 (27...hg5 28.Ng4+–) 1–0. Kuehn,Peter – Unterdoerfer,Edgar, corr DDR–ch12 sf07, 1983.

7.a4 a6

8.Ba3 ab5 9.Bd6 cd6 10.cb5 Ne4 11.Be2 Qa5 12.0–0 =.

8.Ba3 dc4 9.Bd6 cd6 10.Bc4 Nb6 11.Ba2 e5 12.a5 =+.

8.Ba3 e5 9.Bd6 cd6 10.cd5 Nd5 11.Nc3 Nc3 12.dc3 =+.

8.Na3 ab5 9.Nb5 Be7 10.d4 c6 11.Nc3 Bb4 12.Qc2 =+.

8.Na3 c6 9.Be2 e5 10.cd5 cb5 11.ab5 e4 12.Nd4 =.

8.Na3 e5 9.ba6 ba6 10.cd5 e4 11.Nd4 Nd5 12.Nc4 =+.

8.Na3 Re8 9.Be2 e5 10.0–0 e4 11.Nd4 Nc5 12.Qc2 =.

8.ba6 ba6 9.Nc3 Rb8 10.Rb1 Bb7 11.cd5 Nd5 12.Be2 =+.

8.Nc3 ab5 9.ab5 Ra1 10.Qa1 dc4 11.Bc4 e5 12.d3 =.

8.Nc3 Nb6 9.d3 ab5 10.ab5 Ra1 11.Qa1 dc4 12.dc4 =+.

8.d4 Bb4 9.Bc3 Be7 10.cd5 Nd5 11.Qc2 N7f6 12.ba6 =.

8.d4 ab5 9.c5 Be7 10.Bb5 Ne4 11.0–0 c6 12.Bd3 =.

8.d4 b6 9.Ba3 dc4 10.Bc4 ab5 11.Bd6 cd6 12.Bb5 =.

8.d4 dc4 9.Bc4 Nb6 10.Bd3 ab5 11.ab5 Ra1 12.Ba1 =.

8.d4 c5 9.cd5 Nd5 10.Nc3 Nc3 11.Bc3 Qc7 12.Rc1 =.

7.a4 dc4

8.Na3 a6 9.Nc4 ab5 10.Nd6 cd6 11.Bb5 e5 12.d4 =.

8.Na3 c3 9.Bc3 Nd5 10.Nc4 Nc3 11.dc3 Nc5 12.Nd6 =.

8.Qc2 e5 9.Bc4 Qe7 10.d3 Nb6 11.Bb3 a6 12.ba6 =+.

8.Bc4 Nb6 9.Bd3 a6 10.Nc3 e5 11.ba6 ba6 12.Rb1 =.

8.Bc4 e5 9.d4 (9.d3 Re8=) 9...Nb6 (9...e4 10.Ne5=+) 10.Bb3 e4 11.Nfd2 Re8 (11...a6 12.Nc3 ab5 13.ab5 Ra1 14.Qa1=) 12.Nc3= Bb4 (12...Be6 13.a5 Nbd5 14.Nde4 Ne4 15.Ne4=+) 13.0–0 Qd6 (13...a6 14.Qc2 Bc3 15.Bc3=) 14.f3 Bc3 15.Bc3 Nbd5 16.Ne4 +/–. Turcot,J – Beckres,W, corr, 1975.

8.Bc4 a6

9.0–0 Nb6 10.d3 Nc4 11.dc4 b6 12.Qe2 =+.

9.Na3 e5 10.Qc2 e4 11.Ng5 Nc5 12.ba6 =+.

9.ba6 ba6 10.Nc3 Rb8 11.Rb1 Nb6 12.Be2 =.

9.Nc3 e5 10.ba6 b6 11.Nb5 Ba6 12.Qc2 =+.

9.d3 Nb6 10.0–0 Nc4 11.dc4 b6 12.Qe2 =+.

7.a4 c6

8.Na3 Re8 9.Nc2 e5 10.Be2 e4 11.Nfd4 Ne5 (better is 11...c5 12.Nb3 dc4 13.Bc4 Nb6–/+) 12.0–0? (12.bc6 bc6 13.cd5 Nd5–/+) 12...Qc7 (12...c5!? 13.Nb3 dc4 14.Nc1–+) 13.f4 (13.bc6 bc6 14.cd5 Nd3+=) 13...Nc4 (13...ef3 14.Nf3 Nf3 15.Bf3 Bh2 16.Kh1–/+) 14.Bc4 dc4 15.Ne1 (15.bc6 bc6 16.Qe2 a6–/+) 15...cb5 16.Nb5 Qe7 17.Nd6 Qd6 18.Qc2 Be6 19.g3 (19.Bf6!? gf6 20.Qe4 Qd2 21.Nf3–/+) 19...Bd5 20.Ng2 Rac8 21.h3 b6 22.Bd4 Nd7 23.Qc3 f6 24.Nh4 Be6 25.Kg2 Nc5 26.f5 Bf7 27.Qc2 (27.Bc5 Rc5 28.a5 Rd5–+) 27...Nd3 (27...Nb3 28.Rae1–+) 28.Bb2 (28.a5 Rb8–+) 28...Ne5 29.Ba3 Qc6 30.Kh2 a6 31.Ng2 (31.Bb2 Nd3–+) 31...Nf3 32.Kh1 Qd5 33.Rad1 Qf5 34.g4 (34.Nf4 Qd7 35.Kg2–+) 34...Qe5 35.Rf3 ef3 36.Nf4 c3 (36...g5 37.Bb2 Qd6 38.Nh5 Bh5 39.d3 Re3 40.Qh2–+) 37.Rg1 (37.Bc1 f2 38.Kg2 cd2 39.Qd2 Qe4 40.Kg3 Rc2–+) 37...cd2 38.Qd2 Qe3 39.Qe3 Re3 40.Bd6 (40.Bc1 Re4 41.Nd3 Bc4–+) 40...f2 41.Rf1 Rc2 (better is 41...Rc1! 42.Kg2 Rf1 43.a5–+) 42.Kg2 g5 43.Nh5 (43.Rf2 Rf2 (43...gf4?! 44.Rc2 Bd5 45.Kh2–+) 44.Kf2 gf4 45.Bf4 Rh3–+) 43...Bd5 44.Kh2 Re1 45.Rf2 (45.Ng3–+) 45...Rf2 46.Kg3 Rf3 (46...Rg2) 47.Kg2 Re2 0–1. poganinbezdom (1635) – regerosu (1750), kurnik, 2012.

8.Qc2 a5 9.ba6 ba6 10.cd5 cd5=+ 11.d4 Bb7 12.Bd3 =+.

8.Qc2 a5 9.Be2 h6 (9...c5 10.0–0= Qc7 11.d3 dc4 12.dc4=; 9...dc4 10.Na3 Nb6 11.bc6 bc6 12.Ne5=) 10.0–0 (10.cd5 cd5 11.d4 Nb6 12.Ba3=) 10...e5 (10...cb5 11.cb5 e5 12.Rc1= (12.Ba3=)) 11.c5 (11.cd5 cd5 12.Ba3 Nb6=) 11...Bc5 (11...Nc5 12.Be5 cb5 13.ab5=) 12.Ne5 (12.bc6 bc6 13.Be5 Ba6 14.Ba6 Ra6=) 12...Bd6= 13.f4 c5 14.d4 (14.Nd7 Bd7 15.Bf3 Re8=) 14...c4 (14...Re8 15.Nd2=) 15.Nc3 Nb6 16.Bf3 Be5? (better is 16...Re8=) 17.fe5+– Nh7 18.Ba3 Re8 19.Bc5 Be6 (19...Ng5 20.Bb6 Qb6 21.Nd5+–) 20.Bb6 Qb6 21.Nd5 (21.Bd5?! Red8 22.Be6 Qe6+–) 21...Qd8 22.Nf4 Qc7 23.Bh5 (23.Ne6 fe6 24.b6 Qd7+–) 23...Re7 (23...Rf8 24.Rac1+–) 24.h4 (24.d5 Qe5 25.de6 Qe3 26.Kh1 fe6 27.Qc4 Nf8+–) 24...Rd8 (24...Qb6 25.Qc3 f6 26.Rad1+–) 25.Rac1 (25.Ne6 fe6 26.Be2 Rc8+–) 25...Rc8 26.Qc3 Qd8 27.e4 Qb6 (27...Nf8 28.Rcd1+–) 28.Rf2 g5? (28...f6+–) 29.Nd5 (29.Ne6?! fe6 30.Be2 Rd8+–) 29...Bd5 30.ed5 gh4 31.d6 Rd7 32.Bg4 (32...Rdd8 33.Bc8 Rc8 34.Qh3+–) 1–0. Stevanovich,Steve – Madden, MOTCF OH, 1978.

8.Qc2 cb5 9.ab5 dc4 10.Bc4 Nb6 11.Be2 Re8 12.d4 =.

8.Qc2 c5 9.Be2 h6 10.0–0 Re8 11.Nc3 dc4 12.Bc4 =.

8.Qc2 Qe7 9.cd5 cd5 10.Be2 Re8 11.0–0 Rd8 12.d4 =.

8.Qc2 Re8 9.cd5 cd5 10.Be2 a6 11.0–0 e5 12.Rc1 =.

8.Nc3 Nb6 9.a5 (9.cd5!? cd5 10.a5=) 9...Nc4–/+ 10.Bc4 dc4 11.Qa4 Bd7 12.Qc4 cb5 13.Nb5 Rc8 14.Qb3 Bb5 15.Qb5 Nd5 16.0–0 (16.Qb7? Rb8 17.Qa7 Rb2–+) 16...b6 17.ab6 ab6 18.Bd4 Bc5 19.Ra6?? (better is 19.Rfc1=) 19...Bd4 (better is 19...Nc7!? 20.Qd3 Na6 21.Qa6 Bd4 22.Nd4 Qd6–+) 20.Nd4–/+ Rc5 (better is 20...Nc7!? 21.Qb6 Rb8–/+) 21.Qb2= Qd7 22.Rfa1 f5? (better is 22...Rfc8=) 23.Ra7+– Qc6?? (23...Rc7 24.Nb5 Rfc8 25.Nc7 Rc7 26.Ra8 Kf7+–) 1–0. Nordbrink,J – Mertens, tt Bez–L, 1989.

8.d4 dc4 9.Bc4 cb5 10.ab5 Nb6= 11.Bd3 a6 12.0–0 =.

8.d4 c5 9.cd5 ed5 10.dc5 Nc5 11.Be2 Bf5 12.0–0 =.

8.cd5 cd5 9.d4 a6 10.Ba3 Qa5 11.Nbd2 Ba3 12.Ra3 =+.

8.cd5 ed5 9.Be2 cb5 10.ab5 Qe7 11.0–0 Nb6 12.Bd4 =.

8.cd5 Nd5 9.Na3 Rb8 10.Nc4 Be7 11.Be2 cb5 12.ab5 =.

8.Be2 Nb6 9.d3 dc4 10.dc4 Bb4 11.Nbd2 cb5 12.ab5 Ne4 13.Qc2 =.

8.Be2 dc4 9.Na3 cb5 10.ab5 c3 11.Bc3 Nb6 12.Ba5 Bd7 13.Nc4 =.

8.Be2 cb5

9.ab5 a6 10.ba6 ba6 11.Ba3 Ba3 12.Na3 e5 13.d4 =.

9.ab5 dc4= 10.Bc4 (10.Na3 c3 11.Bc3 e5= (11...Nb6 12.0–0 Nfd5 13.Nc4=) 12.Nc4 Qe7 13.0–0=) 10...b6 (10...Nb6 11.Be2 (11.Bd3=+ Re8 12.Bf6 Qf6 13.Nc3=+) 11...Re8 12.d4 a6 13.0–0=) 11.Nc3 (11.0–0 Bb7= 12.d3 Nc5 13.Qe2=; 11.d4 Bb7 12.Ba3 Qb8 13.0–0=) 11...Bb7 (11...Qc7 12.Be2 Bb7 13.Rc1=) 12.Be2 (12.d4 Qc7 13.Bd3 Bb4=; 12.d3 Qc7 13.Qe2=) 12...Qe7 (12...e5 13.d4=) 13.0–0 Rfc8 14.Nd4 (14.d4 Nd5 15.Nd5 Bd5=) 14...Ne5 (14...Nc5 15.f4=) 15.d3 Nd5 (15...a5 16.f4 Ned7 17.Bf3 Bf3 18.Qf3=) 16.Ne4 (16.Nd5 Bd5 17.f4 Ng6+=) 16...Nc7 (16...a5 17.ba6 Ba6 18.Qb3=) 17.Nd6 (17.Qa4 Be4 18.de4 Qh4+=) 17...Qd6 18.f4 Nd7 19.Ba3 (19.Qe1 f6+=) 19...Nc5= 20.Bf3 Nd5 21.Qd2 Qd7 (21...a6 22.ba6 Ba6 23.Rfc1=) 22.Rac1 (22.Bb2 a5+=) 22...f6 (22...a6 23.ba6 Ba6 24.Bd5 ed5 25.Rc3=) 23.Bg4 f5 24.Be2 (24.Bf3 a6=) 24...a6 25.ba6 Ba6 26.Bc5 (26.Bb2 Qa4=) 26...Rc5 (26...bc5 27.Nf3=) 27.Rc5+= bc5 28.Nf3 Nb4 29.Ne5 Qd6 30.Qc3 (30.Ra1 Rb8+=) 30...Nd5= 31.Qc1 Nb4 ½–½. Kreuzer – Holl, tt, 1986.

9.ab5 e5 10.d4 e4 11.Nfd2 dc4 12.Nc4 Be7 13.Nc3 =.

9.ab5 Qe7 10.cd5 Nd5 11.d4 Bb4 12.Nbd2 N7f6 13.0–0 =.

9.ab5 Re8 10.cd5 e5 11.Nc3 e4 12.Nd4 Nb6 13.f3 =.

9.cb5 Qa5 10.0–0 e5 11.Ba3 Ba3 12.Ra3 a6 13.d4 =.

9.cb5 a6=+ 10.Ba3 Ba3 11.Na3 e5 12.0–0 Qa5 13.d4 =.

9.cb5 b6 10.d4 a6 11.Ba3 Ba3 12.Ra3 Ne4 13.0–0 =.

9.cb5 e5 10.0–0 Qa5 11.Ba3 Qb6 12.d4 e4 13.Nfd2 =.

8.Be2 c5

9.0–0 e5 10.d3 dc4 11.dc4 Qc7 12.Nfd2 e4 13.h3 =.

9.Qc2 a6 10.Nc3 dc4 11.Bc4 e5 12.0–0 Nb6 13.Be2 =.

9.Qc2 b6 10.Na3 Bb7 11.0–0 Qc7 12.cd5 Bd5 13.Nc4 =.

9.Qc2 dc4 10.Na3 c3 11.Bc3 e5 12.Nc4 Qe7 13.0–0 =.

9.Qc2 Qe7 10.Nc3 dc4 11.a5 Rd8 12.Bc4 b6 13.0–0 =.

9.Qc2 Re8 10.0–0 e5 11.d3 dc4 12.Qc4 Nb6 13.Qh4 =.

9.d3 e5 10.cd5 Nd5 11.Nbd2 Qe7 12.Ne4 a6 13.Qb3 =.

9.d3 Qe7 10.Qc2 Rb8 11.0–0 Rd8 12.a5 a6 13.Nc3 =.

9.cd5 ed5 10.a5 a6 11.b6 Re8 12.0–0 Qe7 13.Nc3 =.

9.cd5 Nd5 10.0–0 e5 11.d3 a6 12.Qb3 Nb4 13.Nbd2 =.

8.Be2 e5

9.0–0 e4 10.Ne1 Ne5 11.Qc2 Nd3?? (better is 11...dc4 12.bc6 Nc6–/+) 12.Nd3+/– ed3 13.Qd3 Ng4 (13...dc4 14.Qc4 Be6 15.Qh4+=) 14.g3 (14.Bg4 Bg4 15.cd5 cb5 16.ab5 Qh4+–) 14...Qg5 15.f4 Qh5 16.Bg4 Bg4 17.Qd4 Qh6 18.Nc3 Rad8 19.c5 (19.Qa7 dc4 20.Qb7 cb5 21.ab5+/– (worse is 21.Qb5 Rb8 22.Qc4 Rb2–/+; 21.Nb5?! Bb4+=)) 19...Be7+= 20.Qb4 Bf6 21.d4 Qg6 22.Nd1 h5 23.Nf2 Rfe8 24.Ng4 Qg4 25.Rae1 Re4 Black intends h4 26.Qd2 Rde8 27.Qf2 h4 28.Kg2 hg3 0–1. blackiwhite (1715) – m0nt3cr1st0 (1825), kurnik, 2012.

9.c5 Bc5 10.Ne5 Ne5 11.Be5 Re8 12.Bf4 Bf5 13.0–0 =+.

9.c5 Bc7 10.d4 ed4 11.ed4 Re8 12.0–0 Ne4 13.Nc3 =.

9.d3 Bb4 10.Bc3 Bc3 11.Nc3 dc4 12.dc4 cb5 13.ab5 =.

9.d3 dc4 10.bc6 bc6 11.d4 ed4 12.Bd4 c5 13.Bc3 =+.

9.d3 Qc7 10.cd5 Nd5 11.0–0 cb5 12.ab5 Rd8 13.Nbd2 =.

9.cd5 Nd5 10.bc6 bc6 11.Qc1 Bb7 12.Nc3 Nc5 13.Qc2 =.

7.a4 Bd6

8.d4 Bb4 9.Nc3 Ne4 10.Qb3 Bc3 11.Bc3 Nc3 (11...c5!?=) 12.Qc3+= c6 13.c5 White prepares the advance a5 13...Qc7 14.Bd3 h6 15.0–0 Re8 16.Nd2 e5 17.a5 Qd8 18.b6 e4 19.Be2 a6 20.f3 Nf6 21.fe4 Ne4 22.Ne4 Re4 23.Bf3 Re7 24.Qd3 Be6 25.Rae1 f5 26.Bh5 Kh7 (26...Qd7 27.Rf4+/–) 27.Bd1 (27.g4!?+–) 27...g6 28.Bc2 Rg7 29.Qe2 h5 30.Qf3 Qd7 31.Kf2 Re8 32.h3 Kg8 33.Re2 Rf7 34.Ke1 Qe7 35.Kd2 Qf8 36.Qf4 Qg7 37.Qh4 Rfe7 38.Rf3 Qh6 39.Qf2 Bc8 40.Bd3 Kh8 41.Re1 Kg8 42.g4 fg4 43.hg4 Bg4 44.Rf6 Re6 (better is 44...Rg7+=) 45.Rf7?? (better is 45.Bg6!? Rf6 46.Qf6+–) 45...R6e7 (45...Re3 46.Re3 Re3 47.Qe3 Qe3 48.Ke3 Kf7 49.Ba6 Bc8+=) 46.Re7= Re7 47.Qf6 Qg7 48.Qg6 Qg6 49.Bg6 Kg7 50.Bd3 Kf6 51.e4 Rd7 (51...de4 52.Be4 Be6 53.Rf1 Kg5 54.Rb1=) 52.ed5 (52.e5!? Kg5 53.Rb1+/–) 52...Rd5+= 53.Kc3 Rd7 54.Re8 Be6 55.Ra8 h4 56.Ba6? (better is 56.Rh8 Kg5 57.Re8+=) 56...ba6–+ 57.Ra7 h3?? (better is 57...Rd8 58.Rh7 h3 59.Rh6 Kf7–+) 58.Rd7= Bd7 59.b7 h2 60.b8Q h1Q ½–½. Kalanyos,Ferenc (2010) – Erdelyi,Sandor (1930), HUN–chT2 Asztalos, 2005.

8.d4 c6 9.Nbd2 Re8 10.Be2 e5 11.bc6 bc6 12.cd5 cd5 13.de5 Ne5 14.0–0 Bb7 (14...Nf3 15.Nf3 (worse is 15.Bf3 Ba6+=) 15...Rb8 16.Bb5+=) 15.Bb5 Re7 16.Nd4 a6 17.Be2 Bc8 18.f4 Neg4 19.Nc6 Qd7 20.Ne7 Be7? (better is 20...Qe7 21.Rf3 Bc5+=) 21.Bd4+– Qe6?? (better is 21...Nh6+–) 22.f5 Ne3 23.fe6 Nd1 24.ef7 (24.Bd1?! Be6 25.Rb1 Nd7+–; worse is 24.Rfd1 fe6 25.Nf3 Bd6+–; worse is 24.Rad1 fe6 25.Rb1 Nd7+–) 24...Kf7 25.Bd1 Be6 26.Nf3 h6 27.Ne5 Kg8 28.Rb1 Ne4 29.Rb7 (29.Rb6 Bd6+–) 29...Bf6 30.Nc6 Re8 (30...Nd6 31.Rb6 Nc4 32.Ne7 Kf7 33.Rb7+–) 31.Bf6 (31.Bf6 Nf6 32.Ra7+–) 1–0. Hanscombe,Richard (1800) – Gutteridge,Tom (1775), Tom Weston Major op, 2008.

7.a4 e5

8.d4 ed4 9.Qd4 (9.Bd4 c5 10.bc6 bc6=) 9...Bc5 (9...Nc5 10.Qh4 Be7 11.cd5 Nd5 12.Qg3=+) 10.Qh4= Be7 (10...Re8 11.Bd3 dc4 12.Qc4= (12.Bc4? Re4 13.Bf7 Kf8–+)) 11.cd5 Nd5 12.Qg3 Bf6 (12...N7f6 13.Bc4=) 13.Bf6 Qf6 14.Nd4 Nc5 (14...c5 15.bc6 bc6 16.Bc4=+) 15.Bc4 Nb6 (15...Re8 16.0–0 Ne4 17.Qf3 Qf3 18.Nf3=) 16.Qc7 Qg5 (16...Nba4 17.0–0=) 17.Bf1 (17.Be2 Qg2 18.Bf3 Nd3 19.Ke2 Qf2 20.Kd3 Bf5 21.Nf5 Qf3 22.Ne7 Kh8=) 17...Ne6 (17...Nba4 18.Nd2=) 18.Qg3 (18.Ne6 Be6 19.Nd2 Bd5=) 18...Qe7 (18...Qc5 19.Ne2=) 19.Nf3 (19.Qe5 Qb4 20.Nd2 Rd8=) 19...Nc5 (19...Qb4 20.Nbd2 Na4 21.Qh4 Qh4 22.Nh4=) 20.Qh4 (20.Qf4!?+=) 20...Qh4= 21.Nh4 Nba4 22.Nf3 a5 23.ba6 ba6 24.Nd4 Bb7 25.Nd2 Rfd8 26.f3 a5 27.Ra3= Rdc8 28.Bb5 Nb6 29.Ke2 h5 30.Rc1 g6 31.Rac3+= Ncd7 32.Nc4 Rc4 33.Rc4 Nc4 34.Rc4 Ba6 35.Rc7 Nf8 36.Ba6 Ra6 37.Rc3 Nd7 38.Ra3 Kg7 39.e4 a4 40.f4 Nc5 41.e5 f6 42.Ke3 Kf7 43.g3 Ra8 44.ef6 Re8 45.Kd2 Kf6 46.Kc3 Re4 47.h4 Re3 48.Kb4= Ra3 49.Ka3 Ne4 50.Ka4 Ng3 51.Kb5 Nf5 52.Nf3 Ne3 53.Ne5 Kf5 54.Nc6 Kf4–+ 55.Ne7 g5 56.Ng6 Kg3 57.hg5 Kg4 58.Ne5 Kg5 59.Kc5 Kf4 60.Ng6 Ke4 61.Nh4 Nf5 62.Ng6 Ne7 63.Nh4 Kf4 64.Ng2 Kg3 65.Ne3 Kf3 66.Nf1 Nf5 67.Nd2 Kf4 68.Nb1 h4 69.Nd2 h3 70.Nf1 Ne3 (71.Nh2 Kg3–+) 0–1. Fritz 8 (2175) – Deep Shredder 9 (2595), Rated game, 3m + 0s, 2005.

8.d4 e4 9.c5 Be7 10.Nfd2 Kh8 11.Be2 a6 12.Nc3 =.

8.d4 e4 9.c5 Be7 10.Ng5 =+.

8.d4 e4 9.Nfd2=+ dc4 10.Nc3 Re8 11.Qc2 Nb6 12.a5 =.

7.a4 Qe7

8.Ba3 Ba3 9.Na3 e5 10.d4 ed4 11.Nd4 Ne5 12.Be2 dc4 =+.

8.Qc2 Nb6 9.Na3 a5 10.ba6 ba6 11.a5 Nbd7 12.Be2 e5 =.

8.Qc2 Nb6 9.cd5 Nbd5 10.Be5 Nb4 11.Qb2 Bd7 12.Bc4 Be5 =.

8.Qc2 e5 9.a5 c6 10.cd5 Nd5 11.Nc3 N7f6 12.bc6 Nb4 =+.

8.Qc2 e5 9.d4 dc4 10.Nbd2 e4 11.Ng5 Bb4 12.Bc4 Nb6 =+.

8.Nc3 Nb6 9.d3 Bb4 10.a5 Nbd7 11.d4 a6 12.cd5 Nd5 =+.

8.Nc3 Nb6 9.cd5 Nbd5 10.Bc4 Rd8 11.0–0 a6 12.d3 ab5 =.

8.Nc3 dc4 9.Qc2 e5 10.Bc4 e4 11.Nd4 Ne5 12.Be2 c5 =.

8.Nc3 dc4 9.Bc4 a5 10.ba6 ba6 11.d4 Bb7 12.0–0 c5 =+.

8.Nc3 c5 9.a5 Bc7 10.Qb3 Qd6 11.Bd3 d4 12.ed4 cd4 =+.

8.Nc3 c5 9.bc6 bc6 10.d4 Rb8 11.Rb1 Bb4 12.cd5 cd5 =+.

8.Nc3 c5 9.d4 cd4 10.Nd4 Nb6 11.cd5 Nbd5 12.Bd3 Bb4 =+.

8.Nc3 c5 9.cd5 ed5 10.Be2 b6 11.0–0 Re8 12.Qc2 Bb7 =.

8.Nc3 Rd8 9.a5 c5 10.cd5 ed5 11.Be2 c4 12.d3 Ne5 =+.

8.Nc3 Rd8 9.Qc2 c5 10.a5 a6 11.cd5 ed5 12.Be2 Ne5 =.

8.Nc3 Rd8 9.d4 Bb4 10.Qb3 c5 11.bc6 bc6 12.cd5 Nd5 =.

8.Nc3 Rd8 9.cd5 ed5 10.Be2 Ne5 11.Ne5 Qe5 12.d4 Qg5 =+.

8.Nc3 Re8 9.d4 Bb4 10.Bd3 e5 11.de5 Ne5 12.cd5 Nf3 =+.

8.d4 c5=+ 9.Nc3 cd4 10.Nd4 Nb6 11.cd5 Nbd5 12.Bd3 Bb4 =+.

8.d4 c5=+ 9.bc6 bc6 10.Nc3 Bb4 11.cd5 cd5 12.Bd3 a5 =.

8.d4 c5=+ 9.cd5 Nd5 10.e4 Nf4 11.e5 Bc7 12.Qd2 Nd5 =.

8.cd5 ed5 9.Be2 a6 10.Nc3 Ne5 11.Ne5 Qe5 12.Rc1 d4 =+.

8.cd5 Nd5 9.a5 a6 10.e4 Nf4 11.g3 Ng6 12.Nc3 f5 =+.

8.cd5 Nd5 9.d4 c5 10.bc6 bc6 11.e4 Rb8 12.Ba3 Bb4 =+.

8.cd5 Nd5 9.e4 Nf4 10.e5 Bb4 11.Qc2 Nb6 12.g3 Ng6 =.

8.Be2 dc4 9.Bc4 Nb6 10.Be2 Nbd5 11.Be5 a6 12.Nc3 Be5 =+.

8.Be2 e5 9.cd5 (9.d4 Bb4 (9...dc4 10.0–0 a6 11.ba6 b6 12.de5 Ne5=; 9...e4 10.Nfd2 c5 11.0–0 Rd8 12.Nc3 Nb6=) 10.Nbd2 dc4 11.de5 Ne4 12.Qc2 Ndc5=+) 9...Nd5 (9...e4 10.Nd4 Nd5 11.Nc3 Nb4 12.0–0 Nc5=) 10.0–0 (10.Nc3 Nc3 11.Bc3 Nf6=+ 12.Qc2 e4=+) 10...e4 11.Nd4 Ne5 (11...Qe5 12.g3=+ Nc5=+) 12.f4 (12.Nc3 Nc3 13.Bc3 Qh4=+; 12.f3 Nd3=) 12...ef3 (12...Nd3 13.Bd3 ed3 14.Qb3 Ne3 15.de3 Qe3 16.Kh1 Bf4 17.Na3+/–; 12...c5=+) 13.Nf3 Ng6 (13...Rd8 14.Qc2=) 14.Nc3 Nc3 15.Bc3 Bg4 16.Qc2 Rad8 (16...Nh4 17.Qb2 Nf3 18.Bf3 (< 18.gf3 Bh3 19.Kh1 Bf1 20.Rf1 f6–/+) 18...Bf3 19.Rf3=) 17.Qb2 f6 18.Bc4 (18.Bd4 c5 19.bc6 bc6 20.Qb3 Kh8=) 18...Be6 19.Be6 (19.Qb3 Bc4 20.Qc4 Qf7=) 19...Qe6 20.Nd4 (20.Bd4 a6=) 20...Qd5 ½–½. Kolesnikov,L – Filutowski,Ryszard, corr Lviv–Warszawa 7172, 1972.

8.Qc2 c5

9.a5 Rd8 10.Nc3 a6 11.cd5 ed5 12.Be2 Re8 =.

9.Nc3 Qd8 10.cd5 ed5 11.Be2 Re8 12.0–0 Qc7 =.

9.bc6 bc6 10.d4 Rb8 11.Nbd2 c5 12.Ne5 Bb7 =+.

9.cd5 Nd5 10.e4 Nb4 11.Qc3 e5 12.Bc4 Nb6 =+.

9.Be2 e5 10.d3 e4 11.de4 de4 12.Nfd2 a6 =.

8.Be2 a6

9.0–0 ab5 10.ab5 Ra1 11.Ba1 dc4 12.Bc4 e5 =+.

9.ba6 b6 10.cd5 Nd5 11.0–0 Ba6 12.d3 e5 =+.

9.Nc3 dc4 10.Bc4 e5 11.ba6 b6 12.Nh4 Nc5 =+.

9.d4 dc4 10.Nbd2 e5 11.ba6 ba6 12.de5 Ne5 =+.

9.cd5 ed5 10.Nc3 Ne5 11.Ne5 Qe5 12.f4 Qf5 =+.

7.Qc2 a6

8.a4 ab5+= 9.ab5 Ra1 10.Ba1 b6 (10...Qe7 11.Nc3+=) 11.Nc3 Bb7 12.Bb2 Qa8 13.cd5 Nd5 14.Be2 (14.Nd5 Bd5 15.Bd3 f5=) 14...Nb4+= 15.Qb1 f5 16.0–0 Rf6 17.Qa1 Qd8 (17...Qe8 18.Nd4+=) 18.g3 (18.Na2 Rg6 19.Nb4 Rg2 (19...Bb4?! 20.g3+=) 20.Kg2 Qg5 21.Kh1 Bf3 22.Bf3 Qh4–+) 18...Nd3 (18...Rh6 19.d4=) 19.Bd3 Bf3 20.Be2 Ne5 21.d4 Be2 22.Ne2 Nf7 (22...Nf3 23.Kg2 Nd2 24.Rd1+=) 23.Qa4 Ng5 24.Kg2 Rh6 25.Qc4 Qe8 26.f3 Rh5 (26...Rh3!? 27.Qc6 Qc6 28.bc6 Rh5+/–) 27.h4 Nf7 28.Nf4 Rh6 29.Ra1 g5 (29...Bf4 30.ef4 (30.gf4?! Qe7+=) 30...Nd6 31.Qc7 Qb5 32.Qd8 Ne8 33.Ba3+–) 30.hg5 Ng5 31.Ra2 (31.Ra7 Nh3 32.Ne2 Ng5=) 31...Kf7 32.Ba3 Qa8 33.d5 Ba3 34.Qc7 Kg8 35.Qc3 Qf8 36.Ra3 e5 37.Qa1 Qc5 38.Rc3 Qf8 39.Qc1 Rd6 40.Nh5 e4 41.f4 Nf7 42.Qa1 Qh6 43.Rc8 Nd8 44.g4! Qg6 45.Kf2 fg4 46.Qe5 Qh6 47.Ng3 1–0. Boehnke,Hartmut (2085) – Lagergren,Henry (1960), corr WS/H/169 ICCF, 2009.

8.ba6 A) 8...ba6 9.Nc3 (9.Be2 dc4 10.Na3 c3 11.Qc3+= –0.31 ; 9.cd5 ed5 10.Be2 c5 11.Nc3+= –0.37 ) 9...Rb8 10.Rb1 c5 11.Be2+= –0.28 ; B) 8...b6 9.cd5 (9.Nc3 Ba6 10.Nb5 Bc5 11.d4+= –0.44 ; 9.Na3 Ba6 10.Nb5 Bc5 11.d4+= –0.44 ) 9...Nd5 10.e4 Nb4 11.Qc3+= –0.41.

8.Nc3 Nb6 9.Nd5 (9.ba6 Nc4 10.Bc4 dc4 11.ab7= –0.25 ; 9.cd5 ed5 10.ba6 ba6 11.Be2= –0.25 ) 9...ed5 10.c5 Bc5 11.Qc5= 0.00.

8.Nc3 dc4 9.Bc4 b6 10.0–0 Bb7 11.Be2= –0.09.

8.Nc3 c5 9.Be2 (9.ba6 ba6 10.Rb1 Rb8 11.Be2+= –0.28 ; 9.cd5 ed5 10.Be2 Re8 11.0–0= –0.25 ; 9.Rb1 b6 10.cd5 ed5 11.ba6+= –0.34 ) 9...b6 10.d3 Qe7 11.0–0= –0.22.

8.Nc3 c6 9.bc6 (9.ba6 ba6 10.d4 e5 11.cd5= –0.22 ; 9.cd5 cd5 10.Be2 e5 11.Rc1+= –0.34 ) 9...bc6 10.d4 e5 11.cd5= –0.22.

8.Nc3 Qe7 9.ba6 ba6 10.d4 c5 11.Rd1= –0.25.

8.Nc3 Re8 9.d4 (9.Be2 Nb6 10.cd5 ed5 11.ba6= –0.19 ; 9.ba6 ba6 10.Be2 dc4 11.Bc4+= –0.28 ; 9.cd5 ed5 10.Be2 Nc5 11.0–0= –0.22 ) 9...b6 10.cd5 ed5 11.Bd3= –0.09.

8.Nc3 g6 =.

8.d4 dc4 9.Bc4 (9.Qc4 ab5 10.Qb5 b6 11.Qc6+= –0.62 ) 9...Nb6 10.ba6 Nc4 11.ab7+= –0.50.

8.cd5 A) 8...Nd5 9.e4 (9.ba6 b6 10.e4 Nb4 11.Qc3+= –0.41 ; 9.Nc3 Nb4 10.Qb1 ab5 11.Bb5+= –0.31 ; 9.Na3 Nb4 10.Qc3 Nf6 11.Be2+= –0.41 ) 9...Nf4 10.e5 Be7 11.Qe4= 0.00 ; B) 8...ed5 9.Nc3 (9.ba6 b6 10.Nc3 Ba6 11.Ba6= –0.25 ; 9.Nd4 Nc5 10.Nf5 Bf5 11.Qf5+= –0.44 ) 9...Ne5 10.Ne5 Be5 11.d4= 0.00.

7.Qc2 b6

8.cd5 ed5 9.Be2 h6 (9...Re8 10.0–0=) 10.0–0 Re8 11.Nc3 Nc5 12.Nd4 (12.Na4 Ncd7=) 12...Bd7 (12...Qd7 13.f4=) 13.Bf3 (13.Nb3 Bg4 14.Bg4 Ng4=) 13...Nce4 (13...Qe7 14.Nf5 (worse is 14.Nd5 Nd5 15.Nf5 Bf5 16.Qf5 c6+=) 14...Qe5 15.Ng3=) 14.Nd5 Nd5 15.Be4 Bh2 16.Kh2 Qh4 17.Kg1 Qe4 18.Qe4 Re4 19.Rfc1 Ree8 20.f3 Rec8 21.g3 Nb4 22.Rc4 Nd3 23.Bc3 a6 24.a4 Ne5 25.Rb4 a5 (25...ab5 26.ab5 Ra1 27.Ba1+=) 26.Rbb1 Re8 27.Kg2 Rad8 28.g4 Bc8 29.Kg3 f6 30.Rh1 Kf7 31.Rh4 Bb7 32.Rf1 Bd5 33.Rh5 Bc4 34.Rfh1 Bd3 35.R5h2 Rd5 36.e4 Rc5 37.Kf2? (better is 37.Rh5!?= is the best option White has) 37...Rc4 (37...Be4!? 38.Kg3 Bd3 39.Rc1–+) 38.f4?? terrible, but the game is lost in any case 38…Be4 1–0. Saleev,F – Ovsjuchenko,SI (2195), RUS–ch, 2002. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 Nbd7 5.e3 Bd6 6.c4 0–0)

8.cd5 Nd5 9.e4 Ne7 10.d4 Bb7 11.Nbd2 Ng6 12.h4 Kh8 13.Be2 Rc8 14.0–0 Nh4 15.Nh4 Qh4 16.e5 Bb4 17.Bf3 Bf3 18.Nf3 Qh5 19.Rac1 g5 20.Qe4 g4 21.Nh2 Rg8 22.Rc4 Bd2 23.g3 Rg6 24.Rc2 Bh6 25.Qb7 Rcg8 26.Rc7 Nf8 27.Rf7 Bd2 28.Ba3 (28.Qa7 Rh6 29.Rd1 Bg5+=) 28...Rh6 29.Ng4 Qg4 30.Rf8 Rf8 31.Bf8 Rh3 (31...Rg6 32.Be7 Bg5 33.Rc1+– (33.Qa7 Qf3 34.Bg5 Rg5=)) 32.Be7 (32.Qa7 Rg3 33.fg3 Be3 34.Rf2 Qg3 35.Kh1 Bf2 36.Qg7 Qg7 37.Bg7 Kg7–+) 32...h5 33.Bf6 Kg8 34.Qb8 Kf7 35.Qc7 (35.Qa7 Kg8 36.Qb8 Kh7 37.Qh8 Kg6+–) 35...Kg6 36.Qg7 Kf5 37.Qh7 Qg6 38.Qb7. gioco1b4 – mazekiss, ChessWorld.net, 2013.

8.Ng5 h6 9.Nf3 Bb7 10.h3 dc4 11.Bc4 Bf3 12.gf3 Ne5 13.Be2 Qe7 14.f4 Ned7 15.Bf3 Nd5 16.Rg1 N7f6 17.a3 e5 18.Nc3 c6 19.bc6 Nc3 20.Qc3 (20.Bc3?! Kh8+/–; worse is 20.dc3 ef4 21.Bc1 Rfe8–/+) 20...Rfe8 21.Ke2?? (21.fe5 Be5 22.Qe5 Qe5 23.Be5 Re5+–) 21...Kh8?? (better is 21...Qc7+/–) 22.fe5+– Be5 23.Qe5 Qe5 24.Be5 Re5 25.Rac1 Rc8 26.d4 Re7 27.d5 Ne8 28.h4 Nd6 29.h5 Kh7 30.Rg4 g5 31.hg6! fg6 32.Rcg1 g5 33.Rh1 Kg6 34.Rb4 Kg7 35.Bg4 Rcc7 36.Be6 Re6 37.de6 Rc6 38.Rd4 Nb5 39.Rd7 Kg6 40.e7 Re6 41.Rc1 Kf7 42.a4 Nd6 43.Ra7 Re7 44.Re7 Ke7 45.Rc6 Kd7 46.Rb6 Kc7 47.Rb2 h5 48.Kf3 Kc6 49.a5 Nc4 (49...Nb5+–) 50.Rc2 1–0. Leon Manas,Jose Francisco (1970) – Sosa Iglesias,Rayco (1650), Las Palmas ESP, Canaria Team Ch–C, 2012.

7.Qc2 c6

8.Nc3 Qc7 (8...Re8 9.Be2 (9.Rc1 e5 10.bc6 bc6 11.cd5=; 9.cd5 cd5 10.Be2 e5 11.0–0+=; 9.d4 Qa5 10.c5 Bb8 11.Qa4=; 9.bc6 bc6 10.cd5 ed5 11.Be2=) 9...e5 10.d4 a6 11.bc6=; 8...a6 9.bc6 (9.ba6 ba6 10.d4 e5 11.cd5=; 9.cd5 cd5 10.Be2 e5 11.Rc1+=) 9...bc6 10.d4 e5 11.cd5=; 8...e5 9.bc6 bc6 10.cd5 cd5 11.Nb5=; 8...Qe7 9.Be2 (9.cd5 cd5 10.Be2 e5 11.0–0=; 9.Rc1 e5 10.bc6 bc6 11.cd5=) 9...e5 10.0–0 Nb6 11.bc6=; 8...c5 9.d4 (9.cd5 ed5 10.Be2 Re8 11.0–0=; 9.Be2 dc4 10.Bc4 Nb6 11.Be2=) 9...cd4 10.Nd4 dc4 11.Bc4=; 8...Qa5 9.Rb1 (9.cd5 cd5 10.Be2 e5 11.0–0=; 9.Rc1 a6 10.bc6 bc6 11.cd5=; 9.Be2 dc4 10.bc6 Nb6 11.Ne4=) 9...e5 10.bc6 bc6 11.cd5=) 9.Rc1 (9.d4 e5 10.cd5 cd5 11.de5=; 9.cd5 ed5 10.bc6 bc6 11.Rc1=) 9...Re8 (9...c5!?= 10.cd5 ed5 11.Ng5=) 10.bc6+= bc6 (10...Qc6 11.cd5+=) 11.cd5 ed5 (11...cd5 12.Nb5 Qb8 13.Nd6 Qd6 14.Qc7+=) 12.Nb5+/– Qb8 (12...cb5 13.Qc6 Double attack (13.Qc7 Pinning; 13.Qc7 Deflection; 13.Qc6 Decoy; 13.Qc7 Clearance)) 13.Nd6+– Qd6 14.Qc6 Qc6 15.Rc6 Bb7 16.Rc1 Rac8 17.Rb1 Bc6 18.Be2 Ne4 (18...Ba4 19.Nd4+/–) 19.0–0 (19.d3 Nef6+–) 19...Ndf6 (19...Ba4!?+/–) 20.Rfc1 Nd7 21.Ba6 Rb8?? (better is 21...Rc7+–) 22.Rc6 Ndc5 23.Bf1 h6 24.d3 Na4 25.de4 de4 26.Nd2 Nb2 (26...Rb2 27.Rb2 Nb2 28.Rc7+–) 27.Rc2 Nd3 (27...Na4 28.Rb8 Rb8 29.Ne4+–) 28.Rb8 Rb8 29.Ne4 Rb1 30.Rc8 Kh7 31.Rc7 a5 32.Rf7 Nc1 33.Nc3 Rb2 34.Rc7 Na2 (34...Rc2+–) 35.Na2 Ra2 (35...Kg6 36.Bd3 Kf6 37.Nc3+–) 36.Bd3 (36.Bd3 Kg8 37.Bc4 Kh7 38.Ba2+–) 1–0. gioco1b4 (2500) – ome, ChessWorld.net, 2012.

8.d4 A) 8...cb5 9.c5 Be7 10.Bb5 a6 11.Bd3=; B) 8...Re8 9.c5 (9.bc6 bc6 10.c5 Bc7 11.Qa4=) 9...Be7 10.Nc3 Rb8 11.a4+=; C) 8...Qc7 9.c5 (9.cd5 ed5 10.Nbd2 Nb8 11.Bd3=; 9.Nc3 e5 10.cd5 cd5 11.de5=; 9.bc6 Qc6 10.Ba3 e5 11.Bd6=) 9...Be7 10.a4 Ne4 11.Bd3=; D) 8...Qa5 9.Bc3 (9.Qd2 Qc7 10.c5 Be7 11.bc6=) 9...Qc7 10.c5 Be7 11.bc6=; E) 8...c5 9.Nc3 (9.dc5 Nc5 10.Nc3 Qa5 11.Qd2=; 9.cd5 ed5 10.dc5 Nc5 11.Nc3=; 9.Nbd2 cd4 10.Nd4 e5 11.N4f3=) 9...cd4 10.Nd4 dc4 11.Bc4=.

8.cd5 cd5 9.Be2 Re8 10.0–0 e5 11.Rc1 =.

8.Be2 A) 8...e5 9.d4 (9.bc6 bc6 10.d4 e4 11.Ne5=; 9.cd5 Nd5 10.Nc3 Nc3 11.Bc3=) 9...e4 10.Nfd2 Re8 11.Nc3=; B) 8...Re8 9.d4 (9.0–0 cb5 10.cb5 e5 11.Rc1=; 9.cd5 cd5 10.0–0 e5 11.Rc1=; 9.bc6 bc6 10.d4 Ba6 11.0–0=; 9.Nc3 e5 10.d4 a6 11.bc6=) 9...cb5 10.c5 Qc7 11.Nc3=; C) 8...a6 9.ba6 (9.bc6 bc6 10.d4 c5 11.0–0=; 9.cd5 cd5 10.Nc3 e5 11.Rb1=) 9...ba6 10.d4 Rb8 11.c5=; D) 8...dc4 9.bc6 bc6 10.Na3 Nb6 11.Nc4= E) 8...Qe7 9.cd5 (9.0–0 e5 10.Nc3 Nb6 11.bc6=; 9.Nc3 e5 10.0–0 Nb6 11.bc6=) 9...cd5 10.0–0 e5 11.Rc1=; F) 8...cb5 9.cb5 a6 10.ba6 ba6 11.0–0+=.

7.Qc2 Qe7

8.cd5 ed5 9.Be2 Re8 10.0–0 Nc5 (10...a6 11.Nd4=) 11.Nc3 Bg4 12.Nd4 Be2 13.Nce2 Qe4 14.Ng3 Qc2 15.Nc2 Nfe4 16.d4 Ng3 (16...Nd3 17.Ne4 de4 18.Ba3+=) 17.hg3 (17.dc5 Nf1 18.cd6 Nd2 19.dc7 Rac8–/+) 17...Ne4 18.Rfd1 (18.Ba3 Ba3 19.Na3 Nc3–/+) 18...Re6 19.Ne1 h5 (19...a6 20.a4+=) 20.a4 Rf6 (20...a6 21.Nd3+=) 21.Nd3–/+ g5 (21...a6 22.Rdc1+=) 22.Rac1 (22.Rdc1 a6+=) 22...a6–/+ 23.Rc2 (23.Ra1 Kg7+=) 23...ab5 24.ab5 Ra5 25.Ra1 (25.b6!? cb6 26.Ra1–/+) 25...Rb5–+ 26.Ra8 Kh7 27.Ba3 (27.Ra2 Kg6–+) 27...Ba3 (27...Rb3 28.Bd6 Rd3 29.Be5 Rd1 30.Kh2 Rf2 31.Rc7–/+) 28.Ra3–/+ c6 29.Raa2 Rb1 30.Kh2 Re6 31.Rab2 Rd1 (31...Rb2 32.Rb2 Re7 33.Rb6–/+) 32.Nc5 Nf6 33.Ne6?? (better is 33.g4 Ng4 34.Kg3–+) 33...Ng4 34.Kh3 Rh1# 0–1. Hatziapostolidis,Efstalotis – Fesche,Svein Tore (2015), IBCA–ol blind, 1988.

8.Be2 e5 9.0–0 dc4 10.Bc4 e4 11.Ng5 (11.Nd4 Nb6+=) 11...Bh2 (11...h6 12.Nh3–/+) 12.Kh1? (better is 12.Kh2!? Ng4 13.Kg1 Qg5 14.Qe4=) 12...Bd6–/+ 13.f4 (13.Nc3 Nb6 14.Bb3 Bf5–+) 13...h6–+ 14.Nh3 Nh5 15.Kh2 Qh4 16.Qe4 (16.Nc3 Ndf6 17.Ne2 g5–+) 16...Ng3 17.Qg6?? (17.Qf3 Nf1 18.Bf1–+) 17...Nf1 18.Kg1 Ne5! 19.fe5 (19.Be5 Be5 Combination; 19.fe5 Qc4 Pinning (19...Qc4 Deflection)) 19...Qc4 (19...Bh3 20.ed6 (20.gh3?? Qc4 21.Qg2 Qb5–+) 20...Qg4 21.Qg4 Bg4 22.dc7+/–) 20.Qh5 Ng3 21.Qf3 Ne2 22.Kf2 Bg4 23.Qb7 Rab8 (better is 23...Qc2 24.Nc3 Qd2 25.Ne2 Qe2 26.Kg3 Qb2 27.ed6 Bh3 28.Rg1–+) 24.Qa7 (24.Qc6 Bc5 25.a4 Rb6–+) 24...Ra8 (24...Ra8 25.Qb7 Qc2–+) 0–1. Jonsson,Pall G (1825) – Sigfusson,Sigurdur (2295), Reykjavik Open, 2016.

7.Nc3 Nb6

8.a4 Nc4 9.Bc4 dc4 10.Qe2 b6 11.Qc4 Bb7 12.e4 Nd7 13.d4 a5 14.0–0 Bb4 15.d5 Nc5 16.Rfd1 Qf6 17.Rab1 Bc3 18.Bc3 (worse is 18.Qc3 Qc3 19.Bc3 Ne4–/+) 18...ed5 19.ed5 (worse is 19.Bf6 dc4 20.Be7 Be4 21.Bc5 bc5–/+) 19...Qf5 20.Qd4 f6 21.Qc4 Kh8 22.Nh4 Qe4 (better is 22...Qc2!?–/+) 23.Qe4= Ne4 24.Rbc1 Nc3 25.Rc3 Rf7 26.Nf5 Rd8 27.Ne3 Rfd7 28.Rcd3 Kg8 29.Kf1 g6 30.Ke2 f5 31.g3 Kf7 32.R1d2 Ke7 33.Kd1 c6 34.Nc4 cb5 35.Re3 (better is 35.d6!? Ke6 36.ab5=) 35...Kf8+= 36.Nb6 Rd6 37.Re6 Re6 38.de6 Rd2 39.Kd2 ba4 40.Na4 Ke7 41.Kc3 Bd5 42.Nc5 Be6 43.f4 Bd5 44.Nd3 Kd6 45.Ne5 a4 46.Kb4 Bb3 47.h3 Kd5 48.h4? (better is 48.Nf3–+) 48...Ke4 49.Nd7 Kf3 50.Nf8 Bg8 51.Nd7 Kg3 52.Nf6 Bb3 (worse is 52...Kh4 53.Ng8 Kg3 54.Nh6–+) 53.Nh7 Kh4 54.Nf8 Bf7 55.Nd7 Kg3 56.Ne5 Be8 57.Nd3 Kf3 58.Kc3 Ke3 59.Kc2 a3 60.Ne5 Kf4 61.Nc4 a2 62.Kb2 Bf7 63.Nd6 Bd5 64.Ne8 (64.Nc8 g5 65.Nb6 Bc6–+) 64...Ke3 (better is 64...Ke5 65.Nc7 f4 66.Na6–+) 65.Nf6 Be6 66.Nh7 f4 67.Ng5 Bg8 68.Nh3 f3 (68...f3 69.Ka1 g5–+) 0–1. Tolmacheva,Eva (1940) – Orshonova,Anna, Sibiria Region–ch (Women), 2009.

8.Qb3 a5 9.Na4 +=.

8.Qb3 dc4 9.Bc4 e5 (9...Nc4 10.Qc4 e5 11.Ne4+=) 10.Bd3 Be6 11.Qc2 h6 (11...Nc4 12.Bc4 Bc4 13.d3+=) 12.0–0 (12.Ne4 Nbd7=) 12...Rc8 13.Rfc1 (13.Bf5 Qd7 14.Be6 Qe6=) 13...c6 14.a4 Nbd5 15.Qb1 Nb4 16.Be2 (16.Bf5 Qd7 17.Be6 Qe6=) 16...c5 17.h3 (17.a5 Qd7=) 17...c4 (17...Qd7 18.a5+=) 18.Ne4 (18.a5 Qe7=) 18...Ne4+= 19.Qe4 f5 20.Qh4 (20.Qb1 e4 21.Nd4 Bd5+=) 20...Qh4–/+ 21.Nh4 e4 22.Ba3 (22.Ng6 Rfd8 23.Be5 Be5 24.Ne5 Nd3 25.Nd3 cd3–/+) 22...Rfd8 Black gets the initiative 23.a5 (23.Ng6 Kh7 24.Bh5 Nd3–/+) 23...g5 24.Ng6 (24.Bc4!? Rc4 25.Rc4 Bc4 26.Nf5–+) 24...Kg7–+ 25.Bh5 Nd3 26.Bd6 Rd6 27.Rcb1 (27.Rf1 Kf6 28.f3 ef3 29.Rf3 Rc5–+) 27...Kf6 28.f3 Bf7 (28...Bf7 29.fe4 Bg6 30.Bg6 Kg6 31.ef5 Kf5–+; 28...ef3 29.Bf3 Kg6 30.b6 ab6 31.Bb7–+) 0–1. Karpenko,Aleksandr (2000) – Marievsky,Maxim (2100), corr, 2002.

8.d3 dc4 9.dc4 e5 =.

8.cd5 ed5

9.Qc2 Re8 10.Rb1 Bg4 11.Be2 Qd7 12.0–0 Qf5 13.Qf5 Bf5 14.d3 h6 15.Nd4 Bh7 16.Rfd1 Rac8 17.Ba1 c6 18.bc6 bc6 19.g3 c5 20.Nf3 Rc6 21.Rd2 Rec8 22.Bf1 c4 23.Nb5 Bb8 24.Rbd1 cd3 25.Bd3 Ne4 26.Be4 (26.Rb2!?=) 26...Be4–/+ 27.Ne1 Rc5 28.Nd4 Ra5 (28...Nc4 29.Re2–/+) 29.f3+= Bh7 30.Kf2 Be5 (30...f6 31.Re2+=) 31.f4 (31.Nb3!? Ba1 32.Na5=) 31...Bd6–/+ 32.f5 Nc4 33.Rc2 Bc5 34.Nef3 Ra3 35.Re2 (35.Rb1 Re3 36.Rc4 Rf3 37.Kf3 dc4–/+) 35...Re8 36.Rde1 (36.Rc1 Bf8–/+ (worse is 36...Rae3 37.Re3 Re3 38.Rc4 Rf3 39.Kf3 dc4 40.Ke4=; worse is 36...Ree3 37.Re3 Re3 38.Rc4 Rf3 39.Kf3 dc4 40.Ke4=)) 36...f6 37.g4 Bb6 (37...Ree3 38.Re3 Ne3 39.Re3 Ra2 40.Kg3 Bd6 41.Kh4 Ra1 42.Re8 Kf7 43.Rd8–/+) 38.h3 (38.Nb5 Ra5 39.Nbd4 Re4–/+) 38...Ne3! 39.Re3 Ree3 40.Re3 Ra2 41.Kg3 Ra1 42.Re7 g6 43.Ne6 gf5 44.Rg7 Kh8 45.Nh4? (45.Rf7 fg4 46.hg4–/+) 45...f4! 46.Kf4 (46.Nf4 Kg7 Deflection; 46.Kf4 Ra4 Double attack) 46...Ra4 47.Kg3 (47.Kf3 Ra3 48.Kg2 Be4 49.Kf1 Ra1 (49...Rh3?! 50.Ng6 Bg6 51.Rg6–+) 50.Ke2 Ra2 51.Kd1 Bc2 52.Ke1 Ba5 53.Kf2 Bf5 54.Kf3 Be6–+) 47...Ra3 48.Kf4 (48.Kg2 Be4 49.Kf1 Ra1 50.Ke2 Ra2 51.Kd1 Bc2 52.Ke1 Ba5 53.Kf2 Bf5 54.Kf3 Be6 55.Re7–+) 48...Be3 49.Kg3 Bg5 (49...Bg5 50.Nf3 Be4–+) 0–1. Vieira,Icaro Antonio Geral (2060) – Violla Cunha,Mario (2305), Rio de Janeiro BRA, Max Euwe Mem, 2014.

9.Qc2 Re8 10.Rb1 Bg4 11.Be2 Qd7 12.0–0 Qf5 13.Qf5 Bf5 14.d3 h6 15.Nd4 Bh7 16.Rfd1 Rac8 17.Ba1 c6 18.bc6 bc6 19.g3 c5 20.Nf3 Rc6 21.Rd2 Rec8 22.Kg2 c4 23.Nb5 Bb8 24.h3 (24.Rbd1 a6 25.dc4 A) worse is 25...dc4 26.Bf6 gf6 27.Nc3+=; B) worse is 25...Rc4 26.Bf6 (26.Bc4?! Nc4 27.Bf6 Nd2 28.Rd2 ab5+=) 26...ab5 27.Bd4+/–; C) 25...ab5 26.cb5 Re6=) 24...Nfd7 25.Rbd1 a6 26.Nbd4 Rc5 27.g4 c3 28.Rc2 Na4 29.Nf5 (29.Rb1 Bd6+=) 29...Bf5 30.gf5 Bd6 (30...Rb5 31.Nd4 Rb4 32.Rdc1+=) 31.d4 R5c6 32.Rb1 (32.Ne5 Be5 33.de5 Ne5 34.Rd5 Nc4=) 32...Rb8 (32...Kf8 33.Rd1+=) 33.Rb3 Rbc8 (33...g5 34.Ng1 Rcb6 35.Bd1=) 34.Ne1 (34.Ng1 Nf6+=) 34...Nf6 (34...R8c7 35.Nd3 Ndb6 36.Nb4 Bb4 37.Rb4+=) 35.Nd3+= Ra8 (35...Kf8 36.Ne5 Be5 37.de5+/–) 36.Rc1 (36.Nb4 Rb6 37.Na6 Raa6 38.Ba6 Ra6 39.Bc3 Rc6+=) 36...Ne4 (36...Rac8!?+=) 37.Nb4+/– Bb4 38.Rb4 Nb6 39.Bd3 f6 (39...g6 40.fg6 Rg6 41.Kh2+/–) 40.f3 Nd6 41.Kg3 (41.Rc3 Nbc4 42.Kg3 Rac8+/–) 41...Rac8+– 42.Ba6 Ra8 43.Bd3 Nbc4 (43...c2 44.a4 (44.Rc2?! Rc2 45.Bc2 Nbc4+=) 44...Ra4 45.Ra4 Na4 46.e4+–) 44.Kf4 (44.e4 Ra2 45.Bc3 Ne3+–) 44...Ra2 45.Bc3 Ra3 (45...Na5 46.Rb8 Kh7 47.Ra1 Ra1 48.Ba1+–) 46.Rb8 (46.Bc4 Nc4 47.e4 de4 48.fe4 Nd6+–) 46...Kh7 47.Bb1 (47.Bc4 Nc4 48.e4 de4 49.fe4 Na5+/–) 47...Nf7 (47...Ne3 48.Bb2 (48.Ke3?! Rac3 49.Rc3 Rc3 50.Bd3 Ra3=) 48...Rca6 49.Ba3 Ra3 50.Rd8+–) 48.Bb2 Raa6 49.e4 Nb2 50.Rc6 Rc6 51.Rb2 de4 (51...Rc3 52.h4 Nd6 53.Rb6+–) 52.fe4 Rc1 53.Bd3 (53.Ba2 Ng5 54.Rb8 h5 55.Bg8 Kh6+–) 53...Rc3 (53...Rh1 54.Bb5 Rh3+–) 54.Ke3 Nd6 (54...h5 55.Rb7 Nd6 56.Rb1+–) 55.Kd2 Rc8 56.e5 fe5 57.de5 Nf7 (57...Nc4 58.Bc4 Rc4 59.e6+–) 58.e6 Ne5 59.Bb5 (59.Rb7 Nd3 60.Kd3 Kg8+–) 59...Kg8 (59...Nc4 60.Bc4 Rc4 61.Rb7+–) 60.e7 (60.Ke3 Kf8+–) 60...Kf7 61.e8Q Re8 62.Be8 Ke8 63.Rb7 (63.Rb5 Nc4 64.Kd3 Nd6 65.Re5 Kd7+–) 63...Kf8 (63...Nf7 64.Kd3+–) 64.Ke3 Nc4 65.Kf4 Nd6 66.Ra7 Ne8 67.Ke5 Nf6 68.Ke6 Kg8 69.Ra8 Kh7 70.Kf7 Ne4 71.Ra4 (71.Ra7 Nf6+–) 71...Ng3 72.f6 gf6 73.Kf6 Nh5 74.Kf7 Ng3 75.Rg4 Nf5 76.Kf6 Nd6 77.Rg7 Kh8 78.Kg6 (78.Kg6 Nf5 79.Rf7 (79.Kf5?! Kg7 80.h4 h5=) 79...Nh4 80.Kh6+–) 1–0. Malushko,Nikolay Ivanovich (2180) – Cunha,Eduardo Arruda (2215), WS/M/452, 2013.

9.Qc2 Re8 10.Rb1 Bg4 11.Be2 Qd7 12.0–0 Qf5 13.Qf5 Bf5 14.d3 h6 15.Nd4 Bh7 16.Rfd1 Rac8 17.Ba1 Nbd7 18.g3 =.

9.Qc2 Bg4 10.Be2 (10.d4 Bf3 11.gf3 Re8 12.Bd3 Qd7 13.h3+=; 10.h3 Bf3 11.gf3 Re8 12.Rg1 Bh2 13.Rg5+=; 10.Rc1 Bf3 11.gf3 Re8 12.d4 Rc8 13.Bd3=; 10.Bd3 Bf3 11.gf3 Re8 12.0–0 Kh8 13.Rfc1+=) 10...Re8 11.Rb1 Bh5 12.0–0 Qe7 13.d3=.

9.Bd3 A) 9...Bg4 10.Rc1 (10.0–0 Nc4 11.Bc4 dc4 12.Qe2 Qd7 13.Rfd1+=; 10.h3 Bh5 11.Qc2 Bf3 12.gf3 Re8 13.Rg1+=; 10.Qe2 Re8 11.h3 Bh5 12.g4 Bg6 13.Bg6+=) 10...Re8 11.Be2 c5 12.0–0 Bc7 13.d4+=; B) 9...Re8 10.0–0 (10.Rc1 Bg4 11.0–0 Nc4 12.Ba1 Bf3 13.gf3+=; 10.Qe2 Nh5 11.g3 Nf6 12.a4 Bg4 13.h3+=) 10...Nc4 11.Bc4 dc4 12.Qc2 Bg4 13.Ne2+=; C) 9...Nc4 10.Bc4 dc4 11.d3 cd3 12.Qd3 Qe7 13.Qd4+=.

9.Be2 Nc4 10.Bc1 Be6 11.d3 Nb6 12.0–0 a6 13.Bb2 =.

9.Be2 Nc4 10.Bc4 dc4 11.Qe2 Be6 12.Nd4 Qd7 13.0–0 a6 14.ba6 Ra6 15.Ne6 Qe6 (< 15...fe6 16.Qc4 Ra5 17.Ne4+=) 16.Nb5 Ne4 17.Rfc1 Qd5 18.Nd6 (18.Qc4?? Bh2 19.Kh2 Qh5 20.Kg1 Rh6–+) 18...Nd6 (< 18...cd6 19.Rc4 Qe6 20.a3+/–) 19.Qg4 f6 20.Bc3 b5 21.f3 c5 22.e4 Qf7 23.e5 fe5 24.Be5 Re8 25.f4 b4 26.Rc2 Nf5 27.Rac1 Rg6 28.Qh3 Rd8 29.Rc4 Rd2 30.Rc5 Rgg2 (30...Ra2?? 31.Rc8 Qe8 32.Re8 Kf7 33.Qb3 Ke8 34.Qg8 Ke7 35.Rc7) 31.Qg2 Rg2 32.Kg2 h5 33.Kf3 Qa2 34.Ke4 Ne7 35.R1c2 Qb1 36.Kf3 Nd5! 37.Ke2 (37.Rd5 Qc2) 37...Qg1 38.Rc7? (better is 38.h4–+) 38…Qh2 (39.Kd3 Qg3 40.Kd4 Nc7 41.Rc7 h4–+) 0–1. Wittal,Werner – Woelfelschneider,Peter, TT–02.08, 2001.

9.Be2 Re8 10.d3 (10.0–0 Nc4 11.Bc1 a6 12.d3 Nb6 13.a4+=; 10.d4 Bf5 11.0–0 Ne4 12.Qb3 Bg4 13.Qc2+=; 10.Qb3 a5 11.ba6 ba6 12.0–0 Be6 13.Qc2+=) 10...a6 11.0–0 Bd7 12.Qb3 Be6 13.Qc2 =.

9.Be2 Bg4 10.Qb3 (10.0–0 Nc4 11.Qc2 Nb2 12.Qb2 Re8 13.d4+=; 10.d3 a6 11.0–0 Qd7 12.Qb3 Qf5 13.ba6=; 10.d4 Re8 11.0–0 Qd7 12.Qb3 Ne4 13.Rfd1+=) 10...Be6 11.Nd4 Qd7 12.0–0 Nc4 13.Bc1 =.

8.cd5 Nbd5

9.Rc1 Nc3 (9...Re8 10.Qb3 (10.d4= Bd7 11.Ne5 a6 12.ba6 ba6 13.Be2= 0.03 ; 10.Bc4 Nc3 11.Bc3 Nd5 12.Be5 Be5 13.Ne5= 0.09 ; 10.Nd5 ed5 11.Be2 a6 12.ba6 ba6 13.Qa4= –0.06 ; 10.Qc2 Nc3 11.Bc3 e5 12.Bc4 Nd7 13.Qf5= –0.03 ) 10...Nc3 11.Bc3 Qe7 12.Be5 Bd7 13.Bc4= 0.13 ; 9...a6 10.Nd5 ed5 11.ba6 ba6 12.Qa4 Rb8 13.Ba3+= –0.41 ; 9...Bd7 10.Nd5 (10.Bd3 a6 11.ba6 Nb4 12.Bc4 Na6 13.0–0= –0.19 ; 10.Qb3 Nc3 11.Bc3 Ne4 12.d4 Nc3 13.Rc3= –0.22 ; 10.d4 c6 11.Qb3 cb5 12.Bb5 Bb5 13.Qb5= –0.25 ; 10.Qc2 c6 11.e4 Nc3 12.Bc3 Ba3 13.Rb1= –0.09 ) 10...Nd5 11.e4 Nf4 12.e5 Be7 13.Qa4= –0.09 ; 9...Qe7 10.Be2 (10.d4 a6 11.ba6 b6 12.Nd5 ed5 13.Qa4= –0.25 ; 10.Bc4 Nb6 11.Bd3 Rd8 12.Qc2 e5 13.h3= –0.22 ) 10...Nc3 11.Bc3 Nd5 12.Be5 Be5 13.Ne5= –0.03 ; 9...Rb8 10.Bd3 (10.Qc2 Nb4 11.Qa4 a6 12.e4 Be7 13.Ba3= –0.06 ; 10.Nd5 ed5 11.Qa4 a6 12.Qh4 Nd7 13.Qd8= 0.03 ; 10.d4 a6 11.Ne5 ab5 12.Bb5 Ra8 13.Qb3= –0.09 ; 10.Be2 a6 11.Nd5 Nd5 12.0–0 ab5 13.Bb5= –0.22 ) 10...Nc3 11.Bc3 Re8 12.Qa4 Ra8 13.0–0= 0.06) 10.Bc3 Ne4 (10...Bd7 11.Qc2= Nd5 12.Be5 f6 13.Bg3= –0.06 ; 10...Re8 11.Be5 a6 12.ba6 ba6 13.Qb3= –0.03 ) 11.Bb2 f5 (11...Bd7 12.Qc2 Ng5 13.Ne5=; 11...Qe7 12.Bc4 a6 13.ba6= 0.16 ) 12.Bc4 Bb4 (12...Bd7 13.Nd4= 0.22 (13.Qb3=)) 13.Qc2+= Rf7 14.Rd1 Nd6 15.Be2 Ba5 (15...Ne4 16.0–0+/–) 16.Ne5 Re7 17.Bc3 (17.0–0 Nf7+/–) 17...Bc3+= 18.dc3 Re8 19.Qa4 (19.0–0 Qf6 20.f4 a6+/–) 19...Qf6+= 20.Qd4 b6 21.Nc6 Qg5 22.Bf3 Bb7 23.c4 a6 24.a4 ab5 25.cb5 Qh6 (25...Rf8 26.Rd3+=) 26.0–0 Qf6 (26...Rf8 27.Rc1+=) 27.Qb4 (27.Qf6 gf6 28.Ra1 Kf8+/–) 27...e5 28.Bd5 Kh8 29.Rd3 Rf8 30.Rc1 f4 31.e4 Qg5 32.f3 Rf6 33.Ne7+/– Bd5 34.Rd5 Ra7?? 35.Rd6!+– (35.Rd6 Rf8 36.Re6+–) 1–0. Luzuriaga,Norberto Horacio – Wessolek,Peter, corr friendly, 2001.

9.Qc2 Nb4 10.Qb1 (10.Qb3 c6 11.e4 Be7 12.d4 cb5 13.Bb5=; 10.Qc1 c5 11.Bc4 Bc7 12.Na4 b6 13.a3=; 10.Qd1 a6 11.e4 Be7 12.d4 c5 13.dc5=; 10.Qa4 a6 11.a3 Nbd5 12.ba6 Nc3 13.Bc3=) 10...Ng4 11.e4 f5 12.Bc4 Qe7 13.a3 +=.

9.Bd3 A) 9...Nb4 10.Be2 (10.Bc4 c6 11.a3 Nbd5 12.bc6 bc6 13.0–0=; 10.Bb1 a6 11.0–0 Be7 12.a3 Nd3 13.Bd3=) 10...a6 11.0–0 Be7 12.ba6 b6 13.d4=; B) 9...a6 10.ba6 (10.Nd5 Nd5 11.ba6 b6 12.Qc2 f5 13.0–0=) 10...Nb4 11.Be2 b6 12.a7 Bd7 13.e4=; C) 9...c5 10.0–0 (10.bc6 Nb4 11.Be2 Nc6 12.Nb5 e5 13.Nd6=; 10.Nd5 ed5 11.Ng5 g6 12.Be2 c4 13.0–0=; 10.Rc1 Nb6 11.Qc2 c4 12.Be2 Bd7 13.0–0=; 10.Qb1 h6 11.0–0 Qe7 12.Ne4 Ne4 13.Be4=) 10...Nb6 11.Qc2 Qc7 12.Rfc1 c4 13.Be2=; D) 9...Nc3 10.Bc3 (10.dc3 e5 11.Qc2 Qe8 12.Ng5 h6 13.Nh7=) 10...Re8 11.Bc4 Nd5 12.Qc2 Bd7 13.Be5=; E) 9...Bd7 10.Nd5 Nd5 11.Qc2 f5 12.0–0 c6 13.e4=.

9.Nd5 A) 9...Nd5 10.e4 (10.Qc2 a6 11.e4 Nf4 12.e5 Be7 13.Qe4=; 10.Rc1 Bd7 11.e4 Nf4 12.e5 Be7 13.Qa4=; 10.Qb3 Bd7 11.e4 Nf4 12.Qe3 f6 13.g3=; 10.Bd4 Re8 11.Qb3 a6 12.ba6 ba6 13.Rc1=) 10...Nf4 11.Qc2 f6 12.g3 Ng6 13.Bc4=; B) 9...ed5 10.Qc2 (10.Bd3 Bg4 11.h3 Bh5 12.0–0 Re8 13.Be2=; 10.Be2 Qe7 11.0–0 Re8 12.Qc2 a6 13.Nd4=) 10...Ne4 11.Be2 Bf5 12.a3 Qe8 13.Rc1=.

9.Be2 a6 (9...Nc3 10.Bc3 Bd7 11.0–0 c6 12.a4 Nd5 13.Be5=) 10.a4 (10.ba6 b6 11.0–0 Ba6 12.Nd5 Nd5 13.d3+=; 10.Nd5 Nd5 11.ba6 b6 12.0–0 Ba6 13.d3+=; 10.Qb3 Nc3 11.Qc3 ab5 12.Bb5 Bd7 13.Bd7+=) 10...Nc3 11.Bc3 Ne4 12.0–0 Nc3 13.dc3 =.

7.Nc3 dc4

8.Bc4 Nb6 9.Be2 Bd7 10.0–0 Qe8 11.Qc2 Nbd5 12.Nd5 Nd5 13.Ne5 (better is 13.Rfb1!?=) 13...Bb5–/+ 14.Bb5 Qb5 15.Nf3 f6 16.a4 Qd7 17.Nd4 c6 18.Ba3 Ba3 19.Ra3 Rad8 20.Nf3 b6 21.Rc1 c5 22.h3 Nb4 23.Qb3 Qd5 24.Qd5 Rd5 25.d4 a5 26.dc5 bc5 27.Rc4 Rfd8 28.Kh2 Nd3 29.Kg3 Rb8 30.Rc2 (better is 30.Rcc3!? Nb2 31.e4–/+) 30...Rb4–+ 31.Rcc3 Nb2 Black prepares c4 32.Ra1 c4 (worse is 32...Na4 33.Rca3 Nb2 34.Ra5–/+; worse is 32...Ra4 33.Ra4 Na4 34.Ra3–/+) 33.Rac1 (33.Rb1–+) 33...Ra4 34.Nd4 e5 35.Nc6 Rd3 (better is 35...Rc5!? 36.Nd8–+) 36.R3c2 Rb3 37.Ne7 Kf7 38.Nd5 f5 39.Nc3 Rab4 40.Nd5 Rb5 41.Nc3 Rb8 42.Nd5? Ke6 43.Nc7 Kd6 44.Na6 R8b6 45.Rd2 Kc6 46.Rb2 Rb2 47.Rc4 Kb5 (47...Kb5 48.Rc5 Ka6 49.Re5 a4–+) 0–1. mr5reasons1 (1625) – dolbyne (1705), gameknot.com, 2012.

8.Bc4= Nb6 9.Be2 e5 10.Qc2 (10.0–0 Qe7=) 10...Re8 (10...Qe7 11.d4=) 11.d3 (11.0–0 e4 12.Ne1 Bf5=) 11...Bf5 12.0–0 (12.Rd1 Bb4=) 12...e4 (12...a6!?=) 13.de4+= Ne4 14.Bd3 Qe7 15.a4 Bg6 (15...Nd7 16.Nd4 Bg6 17.Ne4 Be4 18.Nf5 Bf5 19.Bf5+=) 16.Rfd1 (16.a5 Nd7+=) 16...Nd7 (16...Ng5 17.Ng5 Qg5 18.a5=) 17.Ne4 (17.Nd5 Qd8+=) 17...Be4 18.Be4 White gets the initiative 18...Qe4 19.Qe4 Re4 20.Nd2 (20.a5 Nc5 21.Ba3 Nb3+=) 20...Re7 21.Nc4 Bc5 (21...Bb4 22.Ba3 Ba3 23.Ra3+=) 22.Na5 Rb8 23.Rac1 Bd6 24.Bd4 Nb6 (24...Kf8 25.h4+=) 25.Bb6+/– cb6 26.Rd6 ba5 27.Rc4 (27.Kf1 Kf8+/–) 27...b6 (27...Kf8 28.Kf1+/–) 28.Kf1 f5 29.Ke2 (29.Rd5 g6+/–) 29...Rbe8 30.g4 (30.Kd3 Kf7+/–) 30...fg4 31.Rg4 The passed pawn on e3 quickly leads to threats 31...Rc8 32.Rf4 g6 33.h4 Rc5 (33...Rc2 34.Rd2 Rc3 35.Rfd4+=) 34.Rfd4 Rc2 (34...Kf7 35.Kf3+/–) 35.Rd2 Rc4 36.R6d4 Rcc7 (36...Rc1 37.Kf3+/–) 37.f4 (37.e4 Rc3 38.f3 Kf7+/–) 37...Rc3 38.R2d3 Rc2 39.Kf3 Rh2 40.Kg3 (40.Rd7 Rh3 41.Kg4 Rhe3 42.Ra7 Ra7 43.Re3 Kf7+=) ½–½. Brinkmann,Wilhelm – Dietz,G, corr FRG jub–B, 1970.

8.Bc4= Nb6 9.Be2 e5 10.d3 (10.Qc2 Qe7=) 10...Qe7 11.Qc2 (11.0–0 Rd8=) 11...Nbd5 (11...Bf5 12.0–0=) 12.0–0 (12.Nd5 Nd5 13.0–0 Rd8=) 12...Nc3 (12...Nb4 13.Qb1 a6 14.ba6 Na6 15.Nb5=) 13.Qc3 Nd5 14.Qc2 Bd7 (14...Rd8 15.d4 e4 16.Ne5=) 15.d4 ed4 (15...e4 16.Ne5 Bf5 17.Bc4=) 16.Bd4 c5 17.bc6 bc6 (17...Bc6 18.Rac1+=) 18.Rfd1+= Rfc8 (18...Nb4 19.Qd2 Nd5 20.Rab1+=) 19.Bb2 (19.Rab1 a5+=) 19...Rab8= 20.Qd2 (20.Rab1 Bg4=) 20...Rc7 (20...Bf5 21.Rac1=) 21.Bc4 (21.Rac1 Rcb7 22.Bd4 Ba3=) 21...Rcb7 22.Bb3 Bc7 (22...Be6 23.Rac1 Rb6 24.Be5+=) 23.Qd4 Qf8 (23...Nf6 24.Qh4+=) 24.Rac1 Bb6 (24...a6 25.Ba1+=) 25.Qd2 (25.Qe4 Qe8 26.Be5+/–) 25...Qe7 26.Ne5+/– Qg5 27.Bd4 Bd4+= 28.ed4 Qf6 29.Qe2 Be8+= 30.Qe4 Qd6 31.Qf3 Re7 32.Qg3 Rd8 33.Nc6+/– Opening the c–file gets White a lot of play 33...Bc6 34.Qd6 Rd6 35.Bd5 Rd5 36.Rc6 g6 37.Kf1 Re4 38.Rc4 Kg7 39.Rd3 Rb5 40.Rb3 Rd5 41.Rb7 a5 42.Rcc7 Rf4 43.g3 Rf3 44.Kg2 Rdf5 45.Rb2 Rd3 46.Rd7 h5 47.Kf1 h4 48.Ke2+/– Rdf3 49.Ke1 hg3 50.hg3 Rd3 51.Rb3 Rdf3 52.Rf3 Rf3 53.d5 Ra3 54.d6 Ra2 55.Ra7 Ra4 56.d7 ½–½. Wolf,M – Neubert,Gerhard, corr DDR Cup6, 1981.

8.Bc4= e5 9.Qc2 (9.d4 e4 10.Nd2 Nb6=) 9...Nb6 10.Be2 (10.Bd3 Re8=) 10...Qe7 11.Ng5 (11.d4 e4 12.Nd2 Bf5=) 11...g6 (11...h6 12.Nge4=) 12.0–0 Bf5 13.Nge4 (13.e4 Bg4=) 13...Nfd5 (13...Ne4 14.Ne4 c6 15.d3 cb5 16.Nd6 Qd6 17.Qb3=) 14.Nd5 Nd5 15.d3 Be4 (15...Rfc8 16.Nd6 cd6 17.Qd2+=) 16.de4 Nf6 17.Bd3 (17.Rac1 Rfd8+=) 17...Rac8 (17...Rfd8 18.Rfd1+=) 18.Qa4 (18.Rfd1 Ba3+=) 18...Bc5 (18...Nd7 19.Rfd1=) 19.Rac1 (19.Rfd1 c6+=) 19...Rfd8 20.Rfd1 (20.Rc3 Bb4 21.Rb3 Bc5+=) 20...c6= 21.bc6 Rc6 22.Bb5 Rcd6 23.Rd6 Qd6 24.Qc2 (24.Be2 Qd2 25.Qc2 Be3 26.Qd2 Bd2+=) 24...b6 (24...Ba3 25.Ba3 Qa3 26.Qc7=) 25.a4 (25.Be2 Qe7=) 25...Qd2 26.Qd2 Rd2 27.Bc3 Ra2 (27...Rd8 28.Be5 Ne4 29.Bc6+=) 28.Bc6 (28.Be5!? Ng4 29.Bg3 Ne3 30.h3+=) 28...Ng4+= 29.Rf1? (29.Be1 Kg7=) 29...Nf2 (better is 29...Rc2 30.Be1 Ne3 31.fe3 Be3 32.Bf2 Bf2 33.Rf2 Rc6–+) 30.Rf2?? (better is 30.Bd5 Re2 31.Bf7 Kf7 32.Rf2 Rf2 33.Kf2–/+) 30...Be3–+ 31.Be1 Bf2 32.Bf2 Ra1 33.Be1 Re1 34.Kf2 Rd1 (34...Rd1 35.h3 Rd4–+; 34...Rc1 35.Bd5–+) 0–1. Jacobi,Karl Heinz – Richter,Matthias Alexander, Lueneburg distr–ch, 1996.

8.Bc4 Qe7 9.0–0 c6 (9...Nb6 10.Bd3=) 10.d4 (10.bc6 bc6 11.Qc2 Rb8=) 10...e5 (10...c5 11.Rc1=) 11.e4 (11.bc6 bc6 12.Qc2 e4=) 11...ed4+= 12.Nd4 Ne5 13.Be2 Nfg4 (13...Rd8!? 14.bc6 Bc5 15.cb7 Qb7+=) 14.h3 (14.bc6 bc6 15.Nc6 Nc6 16.Bg4 Rb8 17.Bc8 Rfc8=) 14...Nh6 (14...Nf6 15.bc6 Nc6 16.Re1=) 15.bc6 (15.Rc1 Rd8 16.Qc2 Qf6+=) 15...bc6 (15...Nc6 16.Qd3=) 16.f4+= Ng6 17.Nc6 Qc7 18.e5 (18.Nb5 Qb6 19.Rf2 Bf4+=) 18...Bc5= 19.Kh2 (19.Nd4 Nf5 20.Ncb5 Qb6–/+) 19...Nf5 (19...Bb7!? 20.Nd4 Bg2 21.Kg2 Qb7 22.Kh2 Qb2=) 20.Qd5+= Bb6 (20...Be3 21.Nb4 Qe7 22.Qe4+= (22.Qa8 Qb4 23.Rab1 Bf4 24.Kh1 Ng3 25.Kg1 Be3 26.Kh2 Nf1 27.Bf1 Bf4 28.Kh1 Bf5–+)) 21.Nb5+/– Qd7 (better is 21...Qb7 22.Qe4 Ne3+/–) 22.Qe4 (22.Qd7 Bd7 23.Ncd4 Bb5 24.Nb5 Ne3+=) 22...Ne3 (22...Bb7!? 23.Bf3 Ngh4+=) 23.Nd6 (23.Rfc1 Qd2 24.Nbd4 Bb7+/–) 23...Nf1= 24.Rf1 Bb7 25.Nb7 Qb7 26.f5 Ne5? 27.Be5+– Rae8? 28.f6 Bc7 29.Rf4 Re5+= 30.Ne5 Qe4 Theme: Double Attack 31.Re4 gf6 32.Rg4 Kh8 33.Bd3 fe5 34.Bf5 e4 35.Kg1 e3 36.Kf1 f6 37.Rc4 Rf7 38.Rg4 Bb6+= 39.Be6 Rf8 40.Rc4 Re8 41.Rc8+= Bd8 42.Ke2= Kg7 43.Bd7+= Rf8 44.Ke3 ½–½. Brinkmann,Wilhelm – Schmidt,Wolfgang, corr FRG jub–B, 1970.

8.Bc4 Qe7 9.d4 Ba3 (9...Nb6 10.Bd3=) 10.Qb3 Bb2 11.Qb2 b6 12.a4 Bb7 13.Be2 Rfe8 14.0–0 e5 15.a5 ba5 16.Ra5 ed4 17.Nd4 Ne5 18.Rfa1 Nfd7 19.Ra7 Rab8 20.g3 c6 21.Qa3 Qa3 (21...c5!? 22.Nf5 Qf6+/–) 22.R1a3+– cb5 23.Ncb5 (23.Bb5 Red8+–) 23...Rec8 24.f4 (24.f3 Nc5 25.Kf2 Bd5+–) 24...Nc6 25.Nc6 Bc6 (25...Rc6 26.e4+–) 26.Nd4 (26.Nd6 Rd8 27.Rc7 Bd5+–) 26...Bb7 27.Rb3 Nc5 28.Rb2 Be4 29.Rc7 (29.Rb8 Rb8 30.Rc7 Nd3+/–) 29...Ra8 30.Rc8 Rc8 31.Kf2 Bd5 32.Ke1 Be4 33.Kd2 Na4 34.Rb4 Nc3 35.Bd3 g6 36.Rc4 Rc4 37.Bc4 Nd5 (37...Nb1 38.Kc1 Nc3 39.g4+/–) 38.Bd3 (38.Nb5 Kf8+–) 38...Bd3 39.Kd3 Ne7 (39...f5 40.e4 fe4 41.Ke4 Nf6 42.Kf3+/–) 40.g4 Kg7 41.h4 Kg8 42.Ke4 Kf8 43.Ke5 Kg8 44.e4 Kf8 45.Kd6 Ng8 46.g5 Ke8 47.Nc6 h6 48.e5 hg5 49.hg5 Kf8 50.Kd7 Kg7 51.Ne7 Kf8 52.Ng8 f6 53.Nf6 Kg7 54.e6 Kh8 55.e7 Kg7 56.Ke6 Kh8 57.e8Q Kg7 58.Qg8 1–0. Rajala,Olavi – Feys,Jan, corr FIN–BEL, 1975.

7.Nc3 c5

8.Qc2 Qa5 A) 9.Rc1 Nb6 (9...a6 10.Be2 Re8 11.0–0 Nb6 12.ba6 ba6= –0.06 ; 9...Rd8 10.cd5 ed5 11.Be2 a6 12.ba6 ba6= –0.09 ; 9...Re8 10.d4 a6 11.cd5 ed5 12.dc5 Nc5= –0.19 ) 10.cd5 ed5 11.Be2 Re8 12.0–0 Bg4= –0.22 ; B) 9.d4 a6 (9...Rd8 10.cd5 cd4 11.Nd4 Nd5 12.Nb3 Qc7= 0.09 ; 9...Re8 10.Rd1 cd4 11.Nd4 dc4 12.Bc4 Qc7= –0.06 ) 10.Qd2 dc4 11.Bc4 Nb6 12.Be2 c4= –0.19 ; C) 9.cd5 ed5 10.Be2 Re8 11.0–0 a6 12.a4 Ne5= –0.13.

8.Qc2 a6 A) 9.Be2 dc4 (9...Qe7 10.0–0 b6 11.cd5 ed5 12.Ng5 d4= –0.03 ; 9...b6 10.cd5 ed5 11.0–0 Re8 12.ba6 Ba6= –0.06 ; 9...Re8 10.0–0 Nb6 11.d3 ab5 12.Nb5 e5= –0.03 ; 9...Qa5 10.0–0 dc4 11.Bc4 Nb6 12.Be2 Rd8= 0.06 ) 10.Bc4 b6 11.Qd3 ab5 12.Nb5 Bb8= –0.22 ; B) 9.ba6 ba6 10.Rb1 Rb8 11.Be2 dc4 12.Bc4 Bb7+= –0.31 ; C) 9.Rb1 b6 (9...Nb6 10.ba6 ba6 11.cd5 ed5 12.Be2 Rb8= –0.19 ; 9...ab5 10.cd5 ed5 11.Bb5 Nb6 12.0–0 Bg4= –0.22 ; 9...Re8 10.ba6 ba6 11.Be2 Rb8 12.0–0 Bb7= –0.25 ) 10.cd5 ed5 11.ba6 Ba6 12.Ba6 Ra6+= –0.31 ; D) 9.d4 Qa5 (9...Re8 10.Rd1 Qa5 11.dc5 Nc5 12.cd5 ed5= –0.03 ; 9...b6 10.dc5 Nc5 11.cd5 ed5 12.Rd1 ab5= –0.09 ) 10.Qd2 dc4 11.Bc4 Nb6 12.Be2 c4= –0.16 ; E) 9.cd5 ed5 10.Be2 Re8 11.0–0 Qe7 12.Rfb1 b6= –0.13.

8.Qc2 b6 9.cd5 ed5 10.Be2 Re8 11.0–0 Qc7 12.h3 Ne5 13.Ne5 Be5 14.f4 Bc3 15.Qc3 Bd7 16.Rf3 Re4 (16...Bf5!?=) 17.Bd3 Re6 18.Rg3 Kf8 19.Qb3 Qb7 (better is 19...Qd8!?+=) 20.Bf5+/– Rd6 21.Be5 Re6 (21...Qc7 22.Qd3+–) 22.Be6 Be6 (22...fe6 23.Qd3 Bc8 24.a4+–) 23.Bf6 gf6 24.Qc2 Ke7 25.Qh7 Rd8 26.Rg7 Kd6 (26...Qb8+–) 27.f5 Bc8 28.Rf7 (28.Rf7 Rd7 29.Rf6 Kc7 30.Qh6+–) 1–0. marekt – shoshonte, internet, 2012.

8.Qc2 b6 9.Be2!?= dc4 (9...Qe7 10.cd5 ed5 11.0–0 a6 12.Ng5 d4=; 9...Bb7 10.cd5 ed5 11.0–0 Re8 12.d4 c4=; 9...Re8 10.0–0 a6 11.Rfb1 dc4 12.Bc4 Bb7=; 9...a6 10.cd5 ed5 11.0–0 Re8 12.ba6 Ba6=) 10.Ne4 Ne4 11.Qe4 Rb8 12.Qc4 Bb7=.

8.Qc2 b6 9.g4 Bb7 (9...d4 10.ed4 Bb7 11.Bg2 cd4 12.Ne2 Nc5–/+) 10.cd5 ed5 (10...Nd5 11.Nd5 Bd5 12.e4 Bb7+=) 11.Bd3 (11.Bg2–/+ Ng4 12.Rg1 Re8–/+) 11...g6?? (better is 11...d4 12.Ne4 c4 13.Nd6 Bf3 14.Bh7 Nh7–+) 12.g5+= Nh5 (12...c4 13.gf6 cd3 14.Qd3–/+) 13.0–0–0 (13.Be2 Re8 14.d4 cd4 15.Nd4 Qg5+=) 13...c4 14.Be2 Nc5 15.Nd4 Rc8 (15...a6!?+=) 16.f4= a5 (16...Ng7 17.h4=) 17.Kb1+= Ng7 18.h4 (18.Bf3 Nge6 19.Nc6 Bc6 20.bc6 d4+= (20...Rc6? 21.Nd5 Rc8 22.Nf6 Kh8 23.Nd7 Kg8 24.Qc3+–)) 18...Qe8 (18...Nge6 19.Ne6 Ne6 20.Bg4=) 19.h5+= Ne4 (better is 19...Nge6!? 20.Ne6 Qe6+=) 20.hg6+/– fg6 21.Ne4 Qe4 22.Qe4 de4 23.Nc6! Rc6 (23...Bc6 24.Bc4) 24.bc6 Bc6 (24...Ba6 25.Rc1 Rc8 26.Bc4 Bc4 27.Rc4 b5+–) 25.Bc4 Kh8 (25...Rf7 26.Bf7 Kf7+–) 26.a3 (better is 26.Rh6 Rf4 27.Rdh1 Bd5 28.Rh7 Kg8 29.Rg7 Kf8 30.Rh8 Bg8 31.Rhg8) 26...b5 27.Ba2 Rd8 (27...Be8+–) 28.Rh6 (28.Rh6 Bd5 29.Bd5+–) 1–0. Kozlowski,Waldemar – Friedrich, corr ch CSSR, 1980.

8.Qc2 Nb6 A) 9.d3 Bd7 (9...Re8 10.Be2 e5 11.cd5 Nbd5 12.Nd5 Nd5= –0.25 ; 9...Bc7 10.Ba3 Nbd7 11.Be2 a6 12.0–0 dc4= 0.00 ; 9...Qc7 10.Be2 e5 11.cd5 Nbd5 12.Ne4 Ne4= 0.00 ; 9...e5 10.cd5 Nbd5 11.Nd5 Nd5 12.Ne5 Qa5= 0.09 ) 10.Be2 a6 11.0–0 ab5 12.Nb5 Bb5+= –0.44 ; B) 9.cd5 ed5 (9...Nbd5 10.Rc1 Re8 11.e4 Nc3 12.Bc3 e5= –0.13 ) 10.Be2 Re8 11.0–0 Bg4 12.h3 Bh5+= –0.34.

8.Qc2 dc4 9.Bc4 Nb6 (9...e5 10.0–0 Nb6 11.Be2 Re8 12.d3 Bg4= –0.06) 10.Be2= Qe7 11.0–0 e5 12.d3 Rd8= –0.06.

8.Qc2 Qc7 9.Be2 b6 10.cd5 ed5 11.0–0 Re8 12.h3 Bb7 13.d4 c4 14.a4 h6 15.Nh4 Bf8 16.Bf3 g6 17.Rfc1 Rac8 18.Be2 Ne4 19.Ne4 Re4 20.Nf3 Ree8 21.Bc3 a5 22.ba6 Ba6 23.Ne5 Ne5 24.de5 Re5 25.Rab1 Bc5 26.Bf3 Qe7 27.Be5 Qe5 28.Qb2 d4 29.ed4 Bd4 30.Qe2 Qc5 31.Rc2 Kg7 32.Rd1 Rc7 33.Qd2 Rd7 34.Qc1 b5 35.ab5 Bb5 36.g4 Qd6 37.Kg2 (37.Rc4?? Qg3 38.Bg2 Bf2 (38...Bc4?? 39.Rd4 Qc7 40.Rd7 Qd7 41.Qc4+–) 39.Kh1 Rd1 40.Qd1 Bc4–+) 37...Qb4 38.Be2 Bc6 39.f3 c3 40.Rd4 Qd4 ½–½. Sigurdsson,Johann (2080) – Vera,Heraclio (2120), RA–2011–0–00121, 2011.

8.Qc2 Ne5 9.Ne5 Be5 10.f4 Bc7 11.Bd3 dc4 12.Bc4 e5 =.

8.Qc2 Re8 A) 9.cd5 ed5 10.Be2 Ne5 11.0–0 d4 12.ed4 Nf3+= –0.53 ; B) 9.Be2 dc4 10.Bc4 Nb6 11.Be2 e5 12.d3 a6= –0.22 ; C) 9.d4 cd4 (9...a6 10.Rd1 Qa5 11.dc5 Nc5 12.cd5 ed5= –0.03 ) 10.Nd4 e5 11.Nf5 Bb4 12.cd5 Nb6+= –0.31 ; D) 9.d3 Qb6 (9...Ne5 10.Nd2 Neg4 11.h3 Nh6 12.g4 d4= 0.06 ) 10.a4 a5 11.Be2 d4 12.Nd1 e5= 0.06.

8.bc6 bc6 A) 9.d4 Rb8 10.Qc2 Ba6 11.c5 Bf1 12.Kf1 Bc7+= –0.59 ; B) 9.Rb1 Nb6 (9...Rb8 10.Nd4 Bb7 11.cd5 Nd5 12.Ne4 Be7= –0.19 ; 9...e5 10.cd5 cd5 11.Be2 a6 12.0–0 Qc7+= –0.34 ; 9...Ba6 10.d3 Rb8 11.Be2 Qa5 12.Qd2 Ne5+= –0.31 ; 9...Qa5 10.cd5 cd5 11.Nb5 Be7 12.Bc3 Qd8= –0.03 ) 10.d4 dc4 11.Ne5 Ba6 12.Nc6 Qc7+= –0.47 ; C) 9.Qa4 Rb8 (9...Bb7 10.cd5 cd5 11.Nb5 Bc6 12.Rc1 Qb6= –0.22 ; 9...Nc5 10.Qc2 Ba6 11.d4 Nce4 12.Ne5 Rc8+= –0.44 ; 9...Qc7 10.cd5 ed5 11.Rb1 Rb8 12.d4 Re8+= –0.28 ; 9...c5 10.Nb5 Bb8 11.Rb1 Bb7 12.Bf6 Nf6= –0.13 ) 10.Rb1 Nb6 11.Qc2 Nc4 12.Bc4 dc4+= –0.66 ; D) 9.Qc2 Ba6 (9...Rb8 10.cd5 ed5 11.Nd4 Qc7 12.Na4 Bb7= –0.03 ) 10.d3 Rb8 11.Be2 dc4 12.dc4 Qa5+= –0.38 ; E) 9.cd5 cd5 (9...ed5 10.Rb1 c5 11.Be2 a6 12.0–0 Rb8+= –0.28 ) 10.Rb1 e5 11.Be2 a6 12.0–0 Rb8+= –0.31.

8.d4 Qa5= A) 9.dc5 Bc5 (9...Nc5 10.Qd2 Rd8 11.cd5 ed5 12.Be2 Bg4= 0.03 ) 10.Qd2 dc4 11.Bc4 Rd8 12.Rd1 a6= 0.03 ; B) 9.Qd2 Rd8 (9...Nb6 10.dc5 Bc5 11.cd5 ed5 12.Rc1 Qb4= 0.12 ; 9...cd4 10.Nd4 Ne5 11.cd5 ed5 12.Rc1 a6= 0.09 ; 9...dc4 10.dc5 Bc5 11.Bc4 Rd8 12.Rd1 a6= 0.03 ; 9...b6 10.Rd1 Bb7 11.dc5 bc5 12.Be2 Qb6= 0.03 ) 10.cd5 ed5 11.dc5 Nc5 12.Be2 Bg4= 0.03.

7.Nc3 c6

8.a4 a6 9.Be2 (9.d4 ab5 10.ab5 Ra1 11.Ba1 Bb4=) 9...e5 (9...dc4 10.bc6 bc6 11.Bc4=) 10.d4 (10.cd5 cd5 11.0–0 e4=) 10...ed4 (10...dc4 11.bc6 bc6 12.Bc4=) 11.Nd4 Ne5 (11...dc4 12.Nc6 bc6 13.Qd6 ab5 14.Qc6+=) 12.cd5 cd5 13.0–0 (13.Qb3=) 13...Bg4 (13...Nc4 14.Qc2=) 14.Bg4 (14.Nd5 Nd5 15.Bg4 Ng4 16.Qg4 Qf6+/–) 14...Neg4+= 15.h3 Ne5 16.Nf5 Attacking the isolated pawn on d5 16...Nc4 17.Nd6 (17.Nd5 Nb2 18.Qd4+/–) ½–½. Ponyi,Attila – Palla,Gyorgy, Salgotarjan, 1979.

8.a4 a6 9.Be2 e5 10.d4 ed4 11.Nd4 Ne5 12.cd5 cd5 13.Rc1 ab5 14.Ndb5 Bb8 15.0–0 Be6 16.Qc2 Qd7 17.f4 Neg4 18.Qd2 Rd8 19.Rfd1 Nh6 20.h3 Bh3 21.gh3+= Qh3 22.Bf1 Qg3 23.Qg2 Qe3 24.Kh1 Nhg4 25.Nd5 Nf2 26.Kg1 Nh3 27.Kh1 Nf2 28.Kg1 Nh3 29.Kh1 Nf2 ½–½. Fritz 5.00 – Junior 5.0, 1998.

8.a4 e5 9.bc6 bc6 10.cd5 cd5 11.Be2 Re8. Everett,Richard – Bivens,William H, NAtlantic tt3 corr9094, 1990.

8.Qc2 a6 9.a4 e5 10.d3 Re8 (10...ab5 11.ab5 Ra1 12.Ba1+= Qa5 13.Qa2 Qb4 14.Qb2 dc4+=; 10...cb5 A) 11.cd5 ba4 (11...Qc7 12.ab5 Nd5 13.d4 Bb4 14.Rc1 ab5+=) 12.Ra4 Rb8 13.Be2 b5 14.Ra1 Qc7+=; B) 11.ab5 dc4 (11...Qc7 12.ba6 Ra6 13.Nd2 Ra1 14.Ba1 dc4+=) 12.dc4 Qc7 13.Bd3 Nc5 14.0–0 Nd3–/+; C) 11.cb5 b6 (11...Bb4 12.Be2 ab5 13.ab5 Ra1 14.Ba1 Re8=; 11...ab5 12.Nb5 Bb4 13.Bc3 Bc3 14.Qc3 Qe7=; 11...Qc7 12.Rc1 Qa5 13.Be2 ab5 14.ab5 Qb4=; 11...Re8 12.Be2 Qc7 13.Rc1 Qa5 14.0–0 Nb6=) 12.Rc1 Qe7 13.Be2 Bb7 14.ba6 Ba6+=; 10...Bb4 A) 11.ba6 b6 (11...ba6 12.Be2 dc4 13.dc4 Qe7 14.0–0 Rb8=; 11...Ra6 12.cd5 Nd5 13.d4 Ra5 14.Bc4 e4+=) 12.cd5 Nd5 13.d4 Qe7 14.de5 Ne5+=; B) 11.d4 e4 12.bc6 bc6 13.Nd2 Rb8 14.Be2 Nb6=; C) 11.bc6 bc6 12.Be2 dc4 13.dc4 Qe7 14.0–0 Bd6=; 10...Qc7 A) 11.cd5 cd5 (11...cb5 12.ab5 Nd5 13.d4 Bb4 14.Rc1 ab5+=; 11...ab5 12.dc6 bc6 13.Be2 b4 14.Nb1 Bb7+=) 12.ba6 ba6 13.Be2 Rb8 14.Rc1 Re8+=; B) 11.Be2 ab5 (11...dc4 12.dc4 ab5 13.cb5 cb5 14.Bb5 Rd8+=; 11...cb5 12.ab5 dc4 13.dc4 Nb6 14.ba6 ba6+=; 11...Rd8 12.cd5 cd5 13.Rc1 ab5 14.ab5 Qb6=) 12.ab5 Ra1 13.Ba1 dc4 14.dc4 Nc5+=) 11.Be2 (11.bc6 bc6 12.Be2 Qc7 13.d4 e4 14.Nd2 Bh2+=; 11.ba6 ba6 (11...Ra6 12.cd5 cd5 13.d4 Ra5 14.Nb5 Bb4=; 11...b6 12.cd5 cd5 13.Be2 Ba6 14.0–0 e4+=) 12.Be2 Rb8 13.Rb1 Qc7 14.h3 dc4+=; 11.cd5 ab5 (11...Nd5 12.bc6 bc6 13.Be2 Rb8 14.Ne4 Bb4+=; 11...cd5 12.Be2 Qc7 13.Rc1 Qb8 14.h3 b6=) 12.dc6 bc6 13.Be2 b4 14.Nb1 Ba6+=) 11...e4 (11...dc4 12.dc4 Qc7 13.e4+= cb5 14.ab5 Nb6+=; 11...Qc7 12.bc6 bc6 13.Rb1 dc4 14.dc4 e4+=; 11...cb5 12.ab5 dc4 13.dc4 e4 14.Nd4 Nc5+=; 11...ab5 12.ab5 Ra1 13.Ba1 Qc7 14.h3 Nb6+=) 12.Nd4 (12.Nd2 ed3 13.Bd3 d4+= (13...Nc5 14.cd5 ab5=) 14.Nce4 Ne4+=) 12...Ne5 (12...ed3 13.Bd3 dc4 14.Bc4+= Ne5+=) 13.de4= de4 14.h3 (14.Rd1 cb5= (14...ab5 15.ab5 c5+=)) 14...c5+= (14...ab5+=) 15.Nb3 Bf5 16.Rd1 (16.0–0 Nd3+=) 16...Nd3–/+ 17.Bd3 ed3 18.Qd2 Qe7 19.Nc1 Ne4 20.Ne4 Qe4 (20...Be4?! 21.0–0+=) 21.Nd3 Qg2 22.Ke2 Bg3 23.Rdf1 Bd3 24.Qd3 Bf2! 25.Rf2 Qh1 26.Qf5 Qg1 0–1. Amburn,T – Akopian,Artak, Las Vegas, 1997. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 Bd6 5.e3 0–0 6.c4 Nbd7 7.Nc3 c6)

8.Qc2 a6 9.a4 e5 10.d4 A) 10...e4 A1) 11.Nd2 ab5 (11...Bb4 12.bc6 bc6 13.Be2 Rb8 14.Ba3 a5=; 11...Bc7 12.Ba3 Re8 13.bc6 bc6 14.Be2 Ba5=; 11...Be7 12.cd5 cd5 13.Ba3 b6 14.Nd5 Nd5+=) 12.cd5 cd5 13.Bb5 Nb6 14.Ba3 Ba3=; A2) 11.bc6 bc6 12.Nd2 Bb4 13.Be2 Qe7 14.Rb1 Rb8=; B) 10...ab5 11.ab5 Ra1 12.Ba1 Qe7 13.c5 Bb8 14.Nb1 e4=.

8.Qc2 a6 9.a4 e5 10.cd5 cd5 A) 11.Rc1 Qb6 (11...Re8 12.Be2 Qe7 13.0–0 e4 14.Nd4 Bc5=) 12.d4 e4 13.Nd2 Bb4 14.Be2 ab5=; B) 11.Ba3 Ba3 12.Ra3 d4 13.Ne4 Qe7 14.Ra1 Re8+=; C) 11.ba6 ba6 12.Ba3 Ba3 13.Ra3 Rb8 14.d4 e4=; D) 11.d4 Re8 (11...Qa5 12.de5 Ne5 13.Nd4 Bg4 14.Bd3 ab5=; 11...e4 12.Nd2 Qe7 13.Qb3 Qe6 14.Ba3 Ba3=; 11...Qe7 12.Nh4 g6 13.Nf3 e4 14.Nd2 b6=) 12.de5 Ne5 13.Nd4 Bg4 14.Rc1 Nc4+=; E) 11.Be2 Kh8 (11...Qa5 12.0–0 Rd8 13.Rfc1 Ra7 14.d4 e4=; 11...Re8 12.d4 e4 13.Nd2 ab5 14.Nb5 Re6=; 11...e4 12.Nd4 Be5 13.ba6 Bd4 14.ab7 Bb7=; 11...Qe7 12.0–0 Re8 13.a5 e4 14.Nd4 Be5=) 12.0–0 Qc7 13.ba6 e4 14.ab7 Bb7=.

8.d4 Qa5 9.Qd2 A) 9...Re8 10.Be2 (10.Rc1 a6 11.bc6 bc6 12.Be2 Rb8 13.0–0=; 10.Rb1 dc4 11.Bc4 cb5 12.Bb5 a6 13.Bd3=; 10.c5 Bc7 11.Rb1 e5 12.Be2 e4 13.Ng5=; 10.Rd1 Bc7 11.Bd3 cb5 12.cb5 a6 13.0–0+=) 10...cb5 11.Nb5 Bb4 12.Bc3 dc4 13.Bc4+=; B) 9...Be7 10.Be2 (10.bc6 bc6 11.Bd3 dc4 12.Bc4 Ba6 13.Ba6=; 10.cd5 ed5 11.Bd3 cb5 12.Nb5 Qd8 13.0–0=; 10.c5 Nb8 11.Be2 cb5 12.Nb5 Qd2 13.Nd2=) 10...cb5 11.Nb5 Qd8 12.Ba3 Ba3 13.Na3=; C) 9...Rb8 10.Rc1 (10.c5 Bc7 11.Bd3 e5 12.de5 Ne5 13.Ne5=; 10.Rb1 Rd8 11.c5 Bc7 12.Be2 e5 13.0–0=; 10.a3 Rd8 11.Rc1 dc4 12.Bc4 a6 13.Ne4=) 10...Rd8 11.a3 c5 12.cd5 ed5 13.dc5=; D) 9...Bc7 10.cd5 (10.Rc1 Rd8 11.cd5 ed5 12.bc6 bc6 13.Bd3=) 10...ed5 11.Rc1 a6 12.bc6 bc6 13.Be2=; E) 9...Rd8 10.Rc1 (10.c5 Bc7 11.Rb1 e5 12.Be2 cb5 13.Bb5=; 10.bc6 bc6 11.cd5 cd5 12.Nb5 Qd2 13.Nd2=) 10...Rb8 11.a3 dc4 12.Bc4 a6 13.Ne4=.

8.d4 dc4 9.Bc4 Nb6 (9...cb5 10.Nb5 (10.Bb5 a6 11.Bd3 b5 12.e4 e5 13.Qc2+=) 10...Be7 (10...Bb4 11.Nc3 Qa5 12.Qb3 Nb6 13.a3=) 11.0–0 (11.Bd3= a6 12.Nc3 b5 13.0–0=) 11...a6 12.Nc3 b5 13.Bd3=) 10.Bd3 Bd7 11.a4 Nbd5 (11...cb5 12.ab5 Qc7 13.0–0=) 12.0–0 (12.Nd5 ed5 13.0–0=) 12...Qa5 (12...Nc3 13.Bc3 Nd5 14.Bd2=; 12...cb5 13.Nb5=) 13.Qb3 (13.Nd5 ed5 14.bc6 Bc6+=) 13...Rab8 (13...Nb4 14.Ba3 Rfc8 15.Na2+=) 14.Nd2 (14.Ba3 Ba3 15.Ra3 Nb4+=) 14...Nc3 (14...Qc7 15.h3=) 15.Bc3+= (15.Qc3? Bb4 16.Qc2 Bd2–+) 15...Qc7 16.h3 Nd5 17.Bb2 (17.Rfc1 Rbc8+=) 17...a6 (17...Nb4 18.Ba3 Nd3 19.Qd3 Ba3 20.Ra3 cb5 21.ab5+=) 18.Rfc1 (18.ba6 ba6 19.Qc2 Nb4 20.Bh7 Kh8=) 18...Rfc8 (18...ab5 19.ab5 Ra8 20.Ba3 Ba3 21.Ra3+=) 19.Ne4 (19.ba6 ba6 20.Qc2 Nb4 21.Bh7 Kh8=) 19...Be7 (19...Bb4 20.Ba3 a5 21.Rab1+=) 20.Nc5 (20.Ba3 Ba3 21.Qa3 a5+/–) 20...ab5+= 21.ab5 Be8 (21...Bc5 22.Rc5 Qd8 23.bc6 Bc6 24.Rca5+=) 22.Na4 (22.e4 Nf6+/–) 22...Qd8 (22...b6 23.Nc3 Nb4 24.Be4+=) 23.b6+/– Ra8 24.Rcb1 (24.Nc5 Rcb8 25.Ra8 Ra8 26.Nb7 Qb6 27.Qb6 Nb6+=) 24...f6 (24...Nb4 25.Be4+/–) 25.Nc5 (25.e4 Nf4 26.Bc4 Bf7+/–) 25...Bc5 (25...Qb6 26.Qc2 Nb4 27.Bh7 Kh8 28.Qe4 Bc5 29.dc5 Qc5 30.Bd4+=) 26.dc5 Bf7 (26...Qe7 27.Ra7+/–) 27.Ra8 (27.Ra7!? Qe7 28.Qc2+/–) 27...Ra8+= 28.Bc3 (28.Qc2!? h6 29.Bc1+/–) 28...Ne3= 29.Bh7 (29.Bf6 Qf6 30.fe3 Qe5=) 29...Kh7 30.fe3 Kg8 (30...Qd3 31.Re1=) 31.Rd1 Qe7 32.Rd6 e5 33.Qd1 Bd5 34.Qg4 Ra2 (34...Ra3!? 35.Bb4 Re3 36.Qc8 Kh7 37.Qf5 Kg8 38.Qc8 Kh7 39.Qf5 Kg8 40.Qc8=) 35.e4+/– Rc2 (better is 35...Bc4+/–) 36.ed5+– Rc3 37.dc6 Rc5 (37...Rc1 38.Kh2 f5 39.Qf5 Rc5+–) 38.Rd7 Qf8 (38...Rc1 39.Kh2 f5 40.Qf5 Qd7 41.cd7+–) 39.c7 1–0. Kucharkowski,Jens – Bartel, Freital, 1986.

8.Be2 a6 9.a4 e5 10.0–0 Qe7 11.ba6 ba6 12.cd5 (12.d4 Rb8 13.Rb1 e4=) 12...cd5+= 13.a5 Rb8 14.Rb1 Bb4 15.d4 e4 16.Ne5 Bb7 (16...Ba5? 17.Nc6 Qd6 18.Na5+–; 16...Ne5?! 17.de5 Qe5 18.Na2=) 17.Qa4 Rfc8 18.Na2 Bd6 19.Nd7 Nd7 20.Rfc1 Nf6 21.Rc2 Rc2 22.Qc2 h5 (22...Bc8 23.Rc1 Bg4 24.Ba6 Bh2 25.Kh2 Qd6 26.Kg1 Qa6 27.Bc3+=) 23.Qd1 (23.Bc3 h4=) 23...g6 (23...Qc7 24.h3+=) 24.Bc3= Bc8 25.Rb8 Bb8 26.Bb4 Qc7 27.g3 Bg4 28.Bg4 Ng4 29.Qd2 h4 30.Bc5 (30.Qe2 Qc8=) 30...hg3 31.fg3 Qd8 (31...Ne5 32.Qb2 Nc4 33.Qb3=) 32.h3 (32.Qe2 Qg5 33.Nb4 Ne3 34.Na6 Bg3 35.hg3 Qg3 36.Kh1–+) 32...Nh6–/+ 33.g4 (better is 33.Nb4!?–/+) 33...Qh4–+ 34.Nc3 (34.Nb4 Qg3 35.Qg2 Qe1 36.Qf1 Qe3 37.Qf2 Qh3 38.Nd5 Ng4–+) 34...Qg3 35.Kf1 Qh3 36.Ke1?? (36.Qg2 Qe3 37.Nd5 Qc1 38.Kf2 Qd2 39.Kg1–+) 36...Qh1 37.Ke2 Qf3 (37...Qf3 38.Ke1 Bg3 39.Qf2 Bf2 40.Kd2 Qe3 41.Kc2 Qd3 42.Kb2 Ng4 43.Nd5 Bd4 44.Bd4 Qd4 45.Nc3 Ne3 46.Kb3 Qc4 47.Kb2 Qb4 48.Ka2 Qc3 49.Kb1 Qb3 50.Kc1 Qc2#) 0–1. Weigel,Hans Juergen (2020) – Kollberg,Lothar (2155), North Germany–ch Seniors 7th, 2004.

8.d4 e5

9.Qb3 A) 9...Qa5 10.cd5 (10.Be2 ed4 11.Nd4 dc4 12.Bc4 Ne5 13.Rd1+=) 10...cd5 11.de5 Ne5 12.Be2 Be6 13.Qa4=; B) 9...dc4 10.Bc4 ed4 11.Nd4 Ne5 12.Rd1 a6 13.bc6=; C) 9...a6 10.cd5 (10.Ba3 dc4 11.Bc4 Ba3 12.bc6 ed4 13.cd7+=) 10...ed4 11.Nd4 Nc5 12.Qc2 cb5 13.a3=; D) 9...ed4 10.Nd4 dc4 11.Bc4 Ne5 12.Rd1 a6 13.bc6=.

9.c5 A) 9...Bc7 10.Be2= (10.Rb1 Ba5 11.Ne5 Ne4 12.Rc1 Ne5 13.de5+=) 10...e4 11.Nd2 Qe7 12.0–0 Qe6 13.Rb1=; B) 9...Be7 10.de5 (10.bc6 bc6 11.Rb1 Rb8 12.de5 Ne4 13.Nd4+=) 10...Ne4 11.Be2 Ndc5 12.0–0 Bg4 13.Rc1=.

9.bc6 bc6 10.Be2 (10.Rb1 Rb8 11.c5 Bc7 12.Qc2 Ba5 13.Kd1–/+ ; 10.cd5 cd5 11.de5 Ne5 12.Nd4 Nc4 13.Rb1+= ; 10.c5 Bc7 11.Qa4 Rb8 12.Nd1 ed4 13.Nd4–/+) 10...Rb8 11.Qc2 e4 12.Nd2 Qc7 13.c5=.

9.cd5 cd5 10.de5 Ne5 11.Ne5 Be5 12.Be2 Qa5 13.Qd2 Be6 14.0–0 Rac8 15.Rac1 Ne4 16.Ne4 Qd2 17.Nd2 Bb2 18.Rc8 Rc8 19.Nf3 Kf8 20.Rb1 Bf6 21.Bd3 Rc3 22.Rd1 g6 23.Kf1 d4 24.ed4 Ba2 25.b6 ab6 26.Be4 Bc4 27.Ke1 Ba6 28.Ne5 Rc7 29.f4 Re7 30.Kd2 Be5 31.fe5 f6 32.Ke3 fe5 33.d5 Rd7 34.d6 Bb5 35.Bf3 h5 36.Ke4 Rf7 37.Ke5 Rf5 38.Kd4 Ke8 39.Be4 Rg5 40.Bb7 Kd7 41.Ke3 Rc5 42.Be4 Bc6 43.Bg6 Bg2 44.Kf4 Bh3 ½–½. Bendig – A de Visser, corr KGP 1989–90.

9.cd5 cd5 10.Ne5 Ne5 11.de5 Be5 12.Bd3 Bg4 13.Qd2 =.

7.Nc3 Qe7

8.a4 b6 9.d4 (9.cd5 ed5 10.Be2 Ne5+=) 9...Bb7 10.Be2 (10.Bd3 dc4 11.Bc4 c5 12.bc6 Bc6=) 10...Bb4 (10...dc4 11.Bc4 Rac8 12.0–0=) 11.0–0= Rfd8 (11...dc4 12.Bc4 Rfc8 13.Qd3=) 12.Qc2 (12.cd5 Nd5 13.Nd5 Bd5+=) 12...Rac8 (12...dc4 13.Bc4 Rac8 14.Rac1=) 13.Rac1 (13.cd5 Nd5 14.Nd5 Bd5=) 13...dc4 14.Bc4 c5 15.bc6 Rc6 16.Bb5 (16.Qe2 Rcc8=) 16...Rc7 17.Qe2 Rdc8 18.Na2 Bd6 19.Rfd1 (19.Ba6 Ba6 20.Qa6 Qd8=) 19...Ne4 (19...Rc1 20.Rc1 Rc1 21.Nc1+=) 20.Ne5 Rc1 (20...Be5 21.de5 Ndc5 22.a5=) 21.Rc1 Rc1 22.Nc1 Ne5 23.de5 Bb8 (23...Ba3 24.f3 Bb2 25.Qb2=) 24.Nd3 (24.f3 Nc5 25.Nd3 h6=) 24...Qc7 25.Nb4 Nc5 26.Qc4 (26.Bd4 Nb3=) 26...a5 (26...Qc8 27.Qc2=) 27.Nd3+= Bd5 (27...h6 28.Qd4+=) 28.Qc3 (28.Qd4 Bb3+=) 28...Nd3 (28...f6 29.f4 Ne4 30.Qc7 Bc7 31.g4=) 29.Qc7 (29.Qd3!? h6 30.f3+/–) 29...Bc7= 30.Bd3 ½–½. Grund,Karl – Talv,Felix, corr ICCF Eu–ch M, 1977.

8.a4 dc4 9.Bc4 e5 10.0–0 e4 11.Nd4 Ne5 12.Be2 Bd7 13.Qc2 Ng6 14.f3 Rfe8 15.fe4 Ne4 16.Ne4 Qe4 17.Bc4 Nh8 18.Qe4 Re4 19.Bd5 1–0. Hoegborg – Gustavsson, corr 1988–89.

8.a4 dc4 9.Bc4 e5 10.d4 ed4 11.Qd4 Nb6 12.Be2 Bc5 13.Qe5 Qe5 14.Ne5 Re8 15.Nd3 Bf8 16.0–0 Nc4 17.Rfd1 Bf5 18.Bc1 Rad8 19.a5 Ne4 20.Ne4 Be4 21.a6 b6 22.Ra4 Nd6 23.Rb4 c5 24.bc6 Bc6 25.Rd4 Nf5 26.Rd8 Rd8 27.Nf4 Rd1 28.Bd1 Bd6 29.Be2 Bf4 30.ef4 Nd4 31.Bf1 Bb5 32.Bb5 Nb5 33.Kf1 Kf8 34.Bb2 f6 35.Ke2 Ke7 0–1. Bendig – Wieprecht, corr 1989–90.

8.a4 Rd8 9.d4 c5 10.cd5 ed5 11.dc5 Bc5 12.Nd5 Nd5 13.Qd5 Bb4 14.Ke2=+.

8.a4 e5 9.cd5 e4 10.Nd4 +=.

8.Qc2 Nb6 9.cd5 White fights for the Initiative 9...ed5 10.a4 (10.Be2 Bg4=) 10...Bg4 (10...a5 11.ba6 ba6 12.a5=) 11.a5 Bf3 12.gf3 Nbd7 13.Be2 (13.a6 Rab8=) 13...Rfe8 (13...c5 14.Qf5 Qe6 15.Qe6 fe6 16.f4=) 14.a6 Ne5? (better is 14...ba6!? 15.Ra6 Qe6=) 15.f4 (15.ab7!? Rab8 16.d4+–) 15...Ng6+/– 16.h4 (16.ab7 Rab8+/–) 16...Rac8?? (better is 16...ba6!? 17.f5 Nf4 18.Ra6 d4+=) 17.h5 (17.ab7 Rb8 18.Qd3 Rb7 19.Nd5 Nd5 20.Qd5 c5+/–) 17...Nf8 (17...Nf4 18.ab7 Rb8 19.Ra7=) 18.Rg1 (18.ab7 Rb8+–) 18...c6 19.bc6 bc6= 20.Qf5 N8d7 21.Bd3 g6 22.hg6 fg6 23.Qh3 Qf7 24.f5+= Ne5 25.Bc2 d4? 26.fg6+– hg6 27.ed4?? Rb8?? 28.Nd1 (28.Nd1 Nd3 29.Kf1 Re1 30.Kg2 Qd5 31.Qf3 Nf4 32.Kh2 Qf3 33.Bf5 N4d5 34.Rg3 Rh1#; better is 28.de5 Re5 29.Kd1+–) 1–0. De Visser,Arno – Macchiagodena,Maurizio, corr, 1990.

8.d4 c5 9.bc6 (9.cd5 ed5 (9...Nd5 10.Nd5 ed5 11.dc5 Nc5 12.Be2 Rd8=; 9...Nb6 10.dc5 Bc5 11.de6 Be6 12.Qc2 Rfd8=; 9...cd4 10.Nd4 Nc5 11.de6 Be6 12.Ne6 fe6+=) 10.dc5 Nc5 11.Nd5 Nd5 12.Qd5 Na4=) 9...bc6 10.c5 Bc7 11.Be2 (11.Qa4 Rb8 12.Qa7 (12.Nd1 Ne4=) 12...Qd8= (12...Rb7=)) 11...Rb8 12.Rb1 e5 (12...Ba5= ) 13.0–0 Ne4 14.Ne4 de4 15.Ne5? (better is 15.Nd2 ed4 16.Bd4 Nc5 17.Qc2=) 15...Ne5–+ (worse is 15...Be5 16.de5 Qc5 17.Qd2+=) 16.de5? (16.h3–+) 16...Rb2! (16...Be5?! 17.Be5 Rb1 18.Qb1 Qe5 19.Rd1=) 17.Rb2 Qe5 (17...Qe5 18.f4 Qb2–+) 0–1. Neuhof,KE – Timmermann,AC, corr ICCF EU–ch M, 1975.

8.Be2 dc4 A) 9.Bc4 e5 (9...Nb6 10.Be2 e5 11.d4 e4 12.Nd2 Bf5=) 10.d4 (10.d3+= Nb6 11.Bb3 a6 12.0–0 Bg4+=) 10...e4 11.Nd2 Nb6 12.Be2 Bf5=; B) 9.0–0 e5 (9...Nb6 10.a4 Rd8 11.a5 Nbd5 12.Bc4 Bd7=) 10.Bc4 e4 11.Nd4 Ne5 12.Be2 Nd3=; C) 9.Qc2 e5 (9...Nb6 10.a4 Nbd5 11.Bc4 Nc3 12.Qc3 Re8=) 10.Bc4 Nb6 11.Bd3 Bg4 12.Ng5 h6=.

8.Be2 c6 9.a4 (9.d4 dc4 10.bc6 Nb6= 11.e4 Bb4 12.Qc2 bc6=; 9.bc6 bc6 10.d4 Rb8 11.Rb1 dc4 12.Bc4 e5=) 9...e5 (9...dc4 10.Bc4 e5 11.bc6 bc6 12.Qc2+= (12.d3 Rb8+=) 12...Rb8+=) 10.d4 (10.cd5 cd5 11.0–0 Re8= 12.a5 e4=) 10...ed4 (10...dc4!? 11.0–0 (11.bc6 bc6 12.0–0 Rb8+=) 11...Qe6+= 12.bc6 bc6=) 11.Nd4= Ne5 12.cd5 cd5 13.0–0 (13.Rc1 Be6=) 13...Neg4 (better is 13...Be6=) 14.h3+= Ne3 15.fe3 Qe3 16.Kh1 Qg3 17.Nf3 Bh3! 18.gh3 (18.gh3 Qh3) 18...Qh3 19.Kg1 Qg3?? (better is 19...Ng4 20.Nd5 Bh2 21.Kh1 Bf4 22.Kg1 Be3 23.Ne3 Ne3–+) 20.Kh1= Ng4 21.Nd5 Qh3 22.Kg1 Bh2 23.Kh1 Bf4 24.Kg1 Be3 25.Ne3 Ne3 26.Rf2? (better is 26.Kf2 Nd1 27.Rad1–+) 26...Qg3 (26...Nd1?! 27.Rd1 Rfe8 28.Re1–+) 27.Kh1 Nd1 28.Rg2 Qh3 29.Rh2 Qh2! 30.Kh2 Nb2 31.Ra2 Na4! 32.Ra4 Rfe8 33.Nd4 Re4 34.Bf3 Rf4 35.Bb7 Rd8 36.Ra7 Rfd4 37.Bc6 Rb4 0–1. Gerold,D – Ketzscher,Roland, corr (year?).

8.d4 dc4

9.Bc4 Nb6 =.

9.Bc4 e5 10.Qc2= (10.0–0 e4 11.Nd2 Nb6 12.Bb3 Bh2+=) 10...e4 11.Nd2 Nb6 12.Bb3 Re8 =.

9.Nd2 a6 10.Nc4 Bb4 11.ba6 b5 12.Nd2 Bc3 +=.

9.Nd2 a6 10.Nc4 Bb4 11.ba6 b5 12.Ne5 Ne5 +=.

9.Nd2 Nb6 10.Nc4 Nc4 11.Bc4 e5 12.0–0 ed4 =.

9.Nd2 Nd5 10.Bc4 N7b6 11.Qf3 Nc3 12.Bc3 Bd7 =.

8.cd5 ed5

9.Qb3 Nb6 10.a4 Be6 11.d4 Rfe8 (11...c5 12.bc6 bc6 13.Ba3=) 12.a5= Nbd7 13.Be2 (13.Ba3 c5=) 13...c5 14.dc5 Nc5 15.Qc2 (15.Qd1 Rac8=) 15...Rac8 (15...Nce4 16.0–0=) 16.0–0 Nce4 17.Rfc1 (17.Qd3 Rc4=) 17...Nc3+= 18.Bc3 Ne4 (18...Ba3 19.Rcb1 Ne4 20.Rb3+=) 19.Qb2= Nc3 20.Rc3 Rc3 21.Qc3 Rc8 22.Qd4 Bc5 23.Qb2 Bb4 24.Ra4 Bc3 (24...Bd6 25.b6=) 25.Qb1 Bf6 (25...Rc5 26.Bd3 h6 27.a6=) 26.Bd3 g6 27.Nd4 Bd7 28.Ra2 Rc3 29.Ne2 Rc5 30.Nd4 Qd6 31.Nb3 Rc3 32.Nc1 Be5 33.g3 Bg4 34.Ne2 Rc5 35.Nd4 Bd4 36.ed4 Rc3 37.Bf1 Bf5 38.Qe1 Rb3 39.Qe8 Kg7 40.Ra1 Qf6 41.Rc1 Qd4 42.Rc7= Qf6 43.Rb7 Be4 44.Rb8= Kh6 45.Qf8+= Kh5 46.Qc8 Qf3 47.Qh3+– Kg5 48.Qh4 Kf5 49.Bh3 Ke5 50.Qe7 Kd4 51.Qa7 Kd3 52.Qe3–+ Qe3 53.fe3 Ke3 54.Bf1 Rb1 55.Re8 Kf3 56.Re4 de4 57.a6 Ra1 58.a7 Ra7 (58...Ra7 59.Bg2 Ke3–+) 0–1. Gerold,Guenter – Haletzki,Bernd, corr GER jub50 qJVM05, 1996.

9.Qb3 Nb6 10.Be2 +=.

9.Qb3 Nc5.

9.Qb3 c6 10.bc6 bc6 11.Be2 (11.Nd4 Nb8+=) 11...Ne5 (11...Nb6 12.Qc2+=) 12.Nd4 (12.Ne5 Be5 (worse is 12...Qe5 13.Nb5 Qe6 14.Nd6 Qd6 15.Ba3+/–) 13.Ba3 Bd6 14.Bd6 Qd6=) 12...Rb8+= 13.Qc2 c5 14.Ndb5 d4 15.Nd1 Re8 (15...Rd8 16.Rc1 Bg4 17.Bf1–/+) 16.Nd6 (16.0–0 Rd8 17.ed4 Neg4+=) 16...Qd6 17.d3 (17.Rc1 Qd5 18.Bf1 Bg4 (18...Qa2?! 19.Qc5 de3 20.fe3=) 19.Qc5 Qc5 20.Rc5 Bd1–+) 17...Ba6 (17...c4 18.0–0–+) 18.f4 (better is 18.Rc1!? Qd5 19.0–0 (19.Qc5?? Qg2 20.Bd4 Qh1 21.Kd2 Bd3 22.Qe5 Re5 23.Be5 Bb1–+) 19...de3 20.Ne3 Qa2 21.Bc3 Qc2 22.Rc2–/+) 18...Nd3!–+ 19.Bd3 Bd3 20.Qd3 Rb2! 21.0–0 (21.Nb2 Re3 Double attack (21...Re3 Decoy)) 21...Rb6 (21...Rb7 22.ed4 Qd4 23.Qd4 cd4 24.Nf2–+) 22.ed4 Rb4 (22...Qd4 23.Qd4 cd4 24.Rc1–+) 23.Nf2 Rd4 24.Qa3 Rf4 (better is 24...Qc7–+) 25.Rac1 (better is 25.Qa7 Qd4 26.Rad1–+) 25...Rf2! 26.Rf2 Ng4 27.Qg3 Qg3 28.hg3 Nf2 29.Kf2 Rc8 30.Rb1 c4 31.Ke2 c3 32.Kd3 c2 33.Rc1 f5 34.Rc2 Rc2 35.Kc2 g5 36.Kd3 Kf7 37.Kd4 Ke6 38.a4 h5 39.a5 h4 40.gh4 gh4 41.Ke3 Kd5?? 42.Kf4= Kc5 43.Kf5 Kb5 44.Kg5 Ka5 45.Kh4 Kb6 46.g4 Kc7?? 47.g5+– 1–0. Wolf – Ketzscher, corr DDR, 1978.

9.Qb3 c6 10.Be2 Nc5 (10...a6 11.bc6 bc6 12.Nd4=) 11.Qc2= Bd7 (11...Bg4 12.bc6 bc6 13.0–0=) 12.a4 (12.bc6 bc6 13.Rb1 Rab8=) 12...Rfe8 (12...Rfc8 13.bc6 Bc6 14.0–0=) 13.0–0 Rac8 14.bc6 bc6 (14...Rc6 15.Nd4 Rcc8 16.Rfc1=) 15.Ba3 (15.Rab1 Bg4=) 15...Bg4 (15...Nce4 16.Bd6 Nd6 17.Ba6=) 16.d4 Nce4 17.Bd6 Qd6 18.Rfc1 (18.Rac1=) 18...Qe7 (18...c5!? 19.Ne4 Ne4 (worse is 19...de4 20.dc5 Qe7 21.Nd4+/–) 20.dc5 Rc5=) 19.Ba6+= Rc7 20.Ne5 (20.Ne4 Ne4 21.Ne5 Bf5+=) 20...Bc8 (20...Nc3 21.Qc3 (21.Ng4? Ng4 22.h3 Nf2 23.Qc3 Ne4–+) 21...c5 22.Ng4 Ng4 23.Be2+= (23.dc5? Qh4 24.h3 Qf2 25.Kh1 Ne3–+)) 21.Ne4+/– Increases the pressure on the backward pawn 21...Ba6 (21...Ne4 22.Bb5+/– (worse is 22.Nc6 Qe6 23.Bb5 Bb7+=)) 22.Ng5 (22.Nc5 Bc8+/–) 22...Qd6 (22...c5 23.Ngf7 (worse is 23.Nef7 Rec8+=) 23...Ne4 24.f3+/–) 23.Ngf7 (23.Qc5 Qc5 24.Rc5 Bb7+/–) 23...Rf7 24.Nf7 Kf7 25.Qc6 Qc6 26.Rc6 Bc4 27.Rb1 Re7 28.f3 Re3= 29.Rb7 Kg6 30.Ra7 The passed pawn on a4 quickly leads to threats 30...Rd3 31.h4 h5 32.Rcc7 Rd4 33.Rg7 Kh6 34.Rgc7 Rh4= 35.Rc6 Kg6 36.Re7 Rf4 37.a5+/– h4 38.a6 Ba6 39.Ra6 h3 40.Rd6 hg2 41.Kg2 Kf5 42.Rd8 Ra4+/– 43.Rf8 Ra6 44.Kg3 Rd6 45.f4 Kg6 46.Kf3 d4 47.Rff7 Rd5? 48.Rg7+– Kh6 49.Rg1 d3 50.Re5 d2 51.Rd5 Nd5 52.Rd1 (52.Rd1 Nf6 53.Rd2+–) 1–0. Drelinkiewicz,Tadeusz – Fichtl,Jiri, Wroclaw Poland, 1971.

9.d4 +=.

9.Be2 Ne5 +=.

7.Nc3 Re8

8.d3 Nb6 9.Be2 a5 A) 10.Qc2 Bd7 (10...e5 11.0–0 Qe7 12.cd5 Nbd5 13.Nd5 Nd5 14.d4 e4 15.Ne5 Bf5; 10...a4 11.a3 Bd7 12.0–0 e5 13.Rfd1 c6 14.c5 Bc5 15.Nd5 Nbd5; 10...c5 11.bc6 bc6 12.0–0 Rb8 13.Rab1 Ba6 14.cd5 cd5 15.Nd4 Qd7; 10...Qe7 11.0–0 e5 12.cd5 Nbd5 13.Nd5 Nd5 14.d4 e4 15.Ne5 Bf5; 10...c6 11.0–0 Bd7 12.e4 e5 13.bc6 bc6 14.Nd1 Qe7 15.c5 Bc5) 11.0–0 e5 12.cd5 Nbd5 13.Nd5 Nd5 14.d4 ed4 15.Bd4 g6; B) 10.cd5 Nfd5 (10...Nbd5 11.0–0 e5 12.Rc1 Nc3 13.Bc3 Nd5 14.Bb2 a4 15.d4 e4; 10...ed5 11.0–0 Bd7 12.a4 c6 13.bc6 bc6 14.Rb1 Rb8 15.Nd4 h6; 10...a4 11.de6 Be6 12.0–0 a3 13.Bc1 Nbd5 14.Bd2 Nc3 15.Bc3 Nd5) 11.0–0 Bd7 12.Nd5 Nd5 13.a4 e5 14.d4 e4 15.Ne5 Be6; C) 10.a4 e5 (10...dc4 11.dc4 e5 12.Qc2 Be6 13.Nd2 Qe7 14.0–0 Bb4 15.h3 Red8; 10...Qe7 11.0–0 e5 12.Qb3 Be6 13.Ng5 Bg4 14.cd5 Be2 15.Ne2 h6; 10...h6 11.0–0 e5 12.Qc2 Qe7 13.Nd5 Nbd5 14.cd5 Nd5 15.d4 e4; 10...Bc5 11.Qb3 e5 12.0–0 dc4 13.dc4 Bf5 14.Rfd1 Qe7 15.h3 Rad8; 10...Bd7 11.Qb3 c6 12.0–0 Qc7 13.h3 c5 14.Rfe1 h6 15.Rad1 Red8) 11.0–0 dc4 12.dc4 Bf5 13.Qb3 Nbd7 14.Rad1 Nc5 15.Qa2 Qe7; D) 10.h3 e5 (10...a4 11.0–0 Bd7 12.Qc2 a3 13.Bc1 e5 14.Bd2 Qe7 15.e4 d4; 10...dc4 11.dc4 e5 12.Qc2 Be6 13.c5 Bc5 14.0–0 Bc4 15.Ng5 Be2; 10...Bd7 11.0–0 e5 12.Qc2 Qe7 13.cd5 Nbd5 14.Nd5 Nd5 15.d4 ed4; 10...h6 11.0–0 a4 12.a3 e5 13.Qc2 Bd7 14.cd5 Nbd5 15.Nd5 Nd5; 10...Qe7 11.0–0 e5 12.e4 d4 13.Nd5 Nbd5 14.ed5 h6 15.Qd2 Bd7) 11.0–0 dc4 12.dc4 Bf5 13.Qc1 Qe7 14.Rd1 Red8 15.g4 Bg6; E) 10.0–0 a4 (10...e5 11.Qc2 a4 12.a3 h6 13.cd5 Nbd5 14.Na4 Bd7 15.Nc5 Bb5; 10...h6 11.Na4 Na4 12.Qa4 e5 13.c5 Bc5 14.Ne5 Nd7 15.Rac1 Bd6; 10...Qe7 11.e4 Nbd7 12.Qc2 dc4 13.dc4 b6 14.Na4 e5 15.Rad1 Bb7; 10...c6 11.bc6 bc6 12.Na4 Na4 13.Qa4 Bd7 14.Qc2 e5 15.Rab1 Rb8; 10...c5 11.a4 e5 12.Nd2 h6 13.cd5 Nbd5 14.Nce4 Ne4 15.de4 Nb6) 11.a3 e5 12.Qc2 Qe7 13.cd5 Nbd5 14.Na4 Bd7 15.d4 ed4.

8.d3 Nb6 9.Be2 a6 A) 10.a4 ab5 (10...dc4 11.dc4 ab5 12.cb5 Nbd5 13.0–0 c5 14.Bc4 Nb6 15.Be2 Nbd5; 10...c6 11.bc6 bc6 12.0–0 Rb8 13.Qc2 c5 14.Rab1 Bb7 15.cd5 ed5; 10...a5 11.0–0 c5 12.bc6 bc6 13.Ba3 Ba3 14.Ra3 Ba6 15.cd5 Nbd5; 10...e5 11.0–0 dc4 12.dc4 Bf5 13.a5 Nbd7 14.Nh4 Be6 15.Qc2 Nc5) 11.cb5 c5 12.0–0 Nbd7 13.h3 b6 14.Qb3 Bb7 15.a5 ba5; B) 10.0–0 ab5 (10...c6 11.a4 ab5 12.cb5 Nbd7 13.Re1 c5 14.Qb3 b6 15.a5 ba5; 10...h6 11.a4 dc4 12.dc4 Nbd7 13.Qc2 Nc5 14.Rfd1 e5 15.h3 Bd7; 10...e5 11.a4 a5 12.Qb3 Be6 13.Ng5 Bg4 14.cd5 Be2 15.Ne2 Nfd5) 11.Nb5 Na4 12.Bf6 Qf6 13.d4 dc4 14.Rc1 Bd7 15.Bc4 Nb2.

8.d3 Nb6 9.Be2 Bd7 10.a4 (10.0–0 e5 (10...c5 11.a4 a5 12.h3 h6 13.Qb3 Bc7 14.Rad1 Qe7 15.Rd2 Rad8; 10...a6 11.a4 c5 12.a5 Nc8 13.Qb3 Ne7 14.h3 Qc7 15.b6 Qb8; 10...a5 11.Na4 dc4 12.dc4 Na4 13.Qa4 Ne4 14.Qc2 Nc5 15.Ne5 f6; 10...Qb8 11.Qc2 c6 12.a4 e5 13.c5 Bc5 14.a5 e4 15.de4 Nc4; 10...Qe7 11.a4 a5 12.ba6 Ra6 13.a5 Nc8 14.c5 Bc5 15.d4 Bb4) 11.Qb3 c6 12.h3 h6 13.a4 a5 14.Ba3 Ba3 15.Qa3 e4; 10.Qc2 Qe7 (10...a6 11.0–0 ab5 12.Nb5 Bb5 13.cb5 Na4 14.Be5 Be5 15.Ne5 Nd7; 10...e5 11.0–0 c6 12.bc6 bc6 13.Rab1 Qc7 14.cd5 cd5 15.Rfc1 Rab8; 10...h6 11.0–0 e5 12.a4 Bf5 13.e4 de4 14.Ne4 Be4 15.de4 Nbd7; 10...c6 11.0–0 cb5 12.Nb5 Bb5 13.cb5 Rc8 14.Qd1 e5 15.Rc1 Rc1; 10...a5 11.0–0 Qe7 12.e4 Ng4 13.h3 Ne5 14.Nd1 Nf3 15.Bf3 Qg5) 11.0–0 e5 12.a4 e4 13.de4 de4 14.Nd4 Be6 15.c5 Bc5; 10.Qb3 a6 (10...c6 11.0–0 e5 12.h3 a5 13.bc6 Bc6 14.a4 e4 15.de4 dc4; 10...Qe7 11.a4 a5 12.0–0 dc4 13.dc4 e5 14.Rad1 e4 15.Nd4 Qe5; 10...h6 11.0–0 Qe7 12.a4 Bc8 13.Rfd1 dc4 14.dc4 Nbd7 15.Nd4 Nc5; 10...c5 11.0–0 a5 12.a4 h6 13.h3 Rc8 14.Rad1 Qc7 15.Rd2 Rb8; 10...a5 11.a4 dc4 12.dc4 e5 13.0–0 Qe7 14.g3 Rad8 15.Rfd1 Bg4) 11.0–0 ab5 12.cb5 e5 13.a4 Ra5 14.Ba3 Qe7 15.Bd6 Qd6; 10.h3 e5 (10...a6 11.0–0 e5 12.Qc2 Qe7 13.a4 dc4 14.dc4 e4 15.Nd2 a5; 10...Qe7 11.a4 e5 12.a5 e4 13.ab6 ef3 14.Bf3 ab6 15.Ra8 Ra8; 10...h6 11.0–0 e5 12.Qb3 a5 13.a4 Be6 14.Rfe1 Rc8 15.Rac1 Rb8; 10...a5 11.0–0 e5 12.Qc2 Qe7 13.cd5 Nbd5 14.Nd5 Nd5 15.d4 ed4; 10...c6 11.a4 e5 12.0–0 dc4 13.dc4 Qe7 14.Ng5 cb5 15.ab5 Bf5) 11.0–0 a6 12.Qc2 ab5 13.cb5 Qe7 14.a4 e4 15.de4 de4) 10...a6 (10...e5 11.a5 e4 12.ab6 ef3 13.Bf3 d4 14.Ne4 Ne4 15.de4 cb6; 10...a5 11.0–0 h6 12.Qb3 c6 13.e4 dc4 14.dc4 e5 15.Rfd1 Bc5) 11.0–0 dc4 (11...c5 12.a5 Nc8 13.Qb3 Ne7 14.h3 Qc7 15.Rfc1 Rec8) 12.dc4 e5 (12...a5 13.Qc2 e5 14.Bd3 Bg4 15.Ne4 Bf3) 13.a5 Nc8 14.Ng5 h6 15.Nge4 Ne4 (15...Be7+/–) 16.Ne4 ab5 17.cb5 Bb4 18.a6 ba6 19.ba6 Na7 (19...Nd6!? 20.Bd3 Qe7+/–) 20.Qc2+– Bf5 21.Bd3 Kh8 22.Nc5 Bg4 23.Ra4 Rb8?? (23...Bc5 24.Rg4 Rb8+–) 24.Nb7 Qe7 25.Qc4 e4 26.Rb4 Nc6 (26...f5 27.h3 Bh3 28.Be4 fe4 29.gh3 Kh7+–) 27.Qc6 f6 28.Re4 Be6 29.a7 Ra8 30.Nc5 Qd6 31.Re6 Qc6 32.Rc6 Ra7 33.Rb1 Rb8 34.Rf6! Kg8 35.Bc4 Kh7 36.Rf7 Rb2 37.Rb2 Ra1 38.Bf1 Ra7 39.Ne6 h5 40.Rg7 Kh6 41.Rb8 Ra8 42.Ra8 c6 43.Rh8 1–0. festor – Dator, internet, 2011.

8.d3 Nb6 9.Be2 e5 10.0–0 dc4 (10...Bg4 11.Qc2 h6 12.h3 Bh5 13.cd5 Nbd5 14.Nd5 Nd5 15.Qc4 Nf6; 10...c5 11.bc6 bc6 12.cd5 Nbd5 13.Ne4 Rb8 14.Rb1 c5 15.Nfd2 Qe7; 10...a5 11.Qc2 a4 12.a3 Qe7 13.cd5 Nbd5 14.Nd5 Nd5 15.d4 e4; 10...a6 11.a4 a5 12.h3 Qe7 13.cd5 Nbd5 14.Nd5 Nd5 15.Nd2 f6; 10...h6 11.Qc2 Qe7 12.cd5 Nbd5 13.Nd5 Nd5 14.d4 e4 15.Ne5 Bf5) 11.dc4 Bf5 12.a4 a5 13.ba6 ba6 14.a5 Nbd7 15.Nh4 Be6.

7.Bd3 e5

8.Be2 e4 9.Nd4 Nb6 10.cd5 Nfd5 11.Nc3 Re8 12.0–0 Nc3 13.Bc3 Qg5 14.g4? (better is 14.f4!? Qg6 15.Bh5=+) 14...Qh4 (14...Qh6 15.f4 ef3 16.Nf3 Bg4 17.Rf2–+) 15.f4–/+ ef3 16.Nf3 Qh3 (16...Qg4!? 17.Kh1 Qh5–/+) 17.g5=+ Nd5 18.Rf2? (better is 18.Bd4=+) 18...Nc3–+ 19.dc3 Re3 (19...Bc5 20.Kh1 Be3 21.Rg2–+) 20.Qd2 Qg4–+ 21.Rg2 Qf4 22.Ne1 Bc5 23.Kh1 Bh3 24.g6 Rae8 25.gh7 Kh8 26.c4 Qf6 27.Bd3 Bg2 28.Ng2 Qa1 (29.Qc1 Qc1 30.Ne1 Qe1 31.Kg2 Rd3 32.b6 Re2#) 0–1. Maurer – Gross,Wilhelm, corr SOK–89–46, 1989.

8.Be2 e4 9.Nd4=+ dc4 10.Na3 Ba3 11.Ba3 Re8 12.Bc4 Ne5 13.Be2 –/+.

8.Be2 e4 9.Nd4=+ Ne5 10.cd5 Nd5 11.f4 Ng4 12.Qb3 Bc5 13.Qc4 =+.

8.Be2 dc4

9.Na3 a6 10.Nc4 e4 11.Nd4 Bc5 12.ba6 Ra6 13.0–0 =+.

9.Na3 Nb6 10.Nc4 e4 11.Ng5 Nc4 12.Bc4 Bf5 13.f3 =+.

9.Na3 Bc5 10.0–0 e4 11.Nd4 a6 12.ba6 Ra6 13.Nc4 =+.

9.Na3 e4 10.Nd4 Ba3 11.Ba3 Re8 12.Bc4 Ne5 13.Be2 –/+.

9.Na3 Be7 10.Nc4 e4 11.Nd4 a6 12.ba6 Ra6 13.0–0 =.

8.Be2 c5

9.bc6 bc6 10.d4 e4 11.Ne5 Qc7 12.Nd7 Bd7 13.c5 =+.

9.d3 dc4 10.dc4 Qe7=+ 11.Nc3 Rd8 12.e4 a6 13.ba6 =.

9.cd5 Nd5 10.0–0 Qc7 (10...e4 11.Ne1–/+ Qc7 12.f4 Rd8 13.Nc3=+) 11.g3 (11.d3 Rd8= 12.Nbd2 b6 13.Ne4=) 11...e4 (11...N7f6 12.d3–/+ Bh3 13.Re1=+) 12.Ng5=+ N7f6 13.Qb3 (13.Nc3 Nc3 14.Bc3 Be5 15.Be5 Qe5–/+) 13...Be5–/+ 14.d4? (better is 14.f3 c4! 15.Qc2–/+) 14...ed3!–+ 15.Bd3 (15.Qd3 Bb2; 15.Bd3 c4) 15...h6?? (better is 15...c4 16.Be5 Qe5 (16...cb3?! 17.Bc7 b2 18.Be5 ba1R 19.Ba1=+) 17.Bc4 Qg5–+ (17...Qa1?! 18.Bd5 Nd5 19.Qd5–/+)) 16.Ne4 (16.Nf3 c4 17.Be5 cb3 18.Bc7 b2=+) 16...Be6 (16...Ne4 17.Be4 Be6 18.Nd2=+) 17.Qa3 (17.Nf6 Nf6 18.Be5 Qe5=+) 17...b6 (17...Ne4!? 18.Be4 a6 19.Be5 Qe5–/+) 18.Nbd2 Rad8 19.Be2 Ne4=+ 20.Ne4 f5 21.Nc3 Ne3 22.fe3+= Bg3 23.Kh1 Bh2= 24.Rf2 Be5=+ 25.Rg1 Qe7 26.Rgg2 Rd2 27.Bc4?? Bc4–+ 28.Qa4 Qh4 29.Rh2 Bh2 30.Rd2 Qe1 31.Kh2–+ Qd2 32.Kh1 Qe1 33.Kh2 Qf2 34.Kh1 Bf1 (35.Qe4 fe4 36.Ne4 Qg2#) 0–1. Cwiertnia,A – Goldberg,Jo, corr Poland, 1985.

9.cd5 Nd5 10.Qb3 N5b6 11.Qc2 Qe7 12.d3 Nf6 13.0–0 =.

9.cd5 Nd5 10.Qb3 N5b6 11.d3 Re8 12.0–0 Nf6 13.Nbd2 =.

9.cd5 Nd5 10.Nc3 Nc3 11.dc3 Nf6 12.c4 Re8 13.Qc2 =.

9.cd5 e4 10.Ng1=+ Nd5 11.d3 Qa5 12.Qd2 Nb4 13.Nc3 =+.

7.d4 a6

8.c5 Be7 9.Nc3 ab5 10.Bb5 c6 11.Bd3 b6 12.cb6 =.

8.c5 Be7 9.Nc3 Ne4 10.a4 (10.Ne4 de4 11.Nd2 ab5 12.Bb5 c6+=) 10...Nc3 11.Bc3 b6 12.cb6 Nb6 (12...cb6 13.Bd3=) 13.Bd3 ab5 14.ab5 Ra1 15.Qa1 Qd6 (15...Bd6 16.0–0=) 16.Qb1 (16.Ne5 Bb7=) 16...f5 (16...h6 17.0–0+=) 17.Ne5+= Qa3 (17...Bb7 18.g4+=) 18.Bd2 (18.Qc2 Qd6+/–) 18...Nd7 (18...Bd6 19.Qc1+=) 19.Nc6 Bd6 20.0–0 Nf6 (20...Bb7 21.Bb4 Bb4 22.Nb4+/–) 21.Rc1 Ne4 22.Be1 Bd7 23.f3 Nf6 24.Rc3 (24.Bb4 Bb4 25.Nb4 Rb8+=) 24...Qa8 (24...Qa4 25.Bh4+=) 25.Bg3 (25.Bh4+=) 25...f4 (better is 25...Bg3!? 26.hg3 Qb7+=) 26.ef4+/– Bc6 27.Rc6 Qa5 28.Be1 Qa8 29.g3 Qa4 30.Bc3 Qa8 31.Qf1 Rf7 32.Qe1 Qc8 33.Bb4 Bb4 34.Qb4 Qd7 35.Qb1 Re7 36.Ra6 Re8 37.Qc2 Qe7 38.Ra7 Rc8 39.b6 Qb4 40.Rc7 Qd4 41.Kg2 Rf8 42.Qb1 h5? 43.b7 Qa7 44.Qb4 Nd7?? 45.Rd7 Rb8 46.Qc3 Qa2 47.Kh3 Qh2 48.Kh2 Kf8 49.Qg7 Ke8 50.Bg6# (50.Qe7#) 1–0. mrkt – Bergsteiger, mychess.de, 2008.

7.d4 Bb4

8.Bc3= a5 9.ba6 Bc3 10.Nc3 ba6 (< 10...Ra6 11.cd5 Ra3 12.Qc1+/–) 11.c5 Bb7 12.Qa4 Ra7 (12...Ne4 13.Rc1=) 13.Rb1+= Qa8 (13...Ne4 14.Qa5+=) 14.Bd3 Ne4 15.Qc2 Ndf6 16.Ne5 Nc3 17.Qc3 Ne4 (17...Bc6!?+=) 18.Be4+/– de4 19.c6 Bc8 20.Qc5 f6 21.Nc4 (21.Nd7 Bd7 22.cd7 f5+/–) 21...Rd8 22.Na5 Rd5 23.Qc3 (better is 23.Qe7!? h6 24.Qe8 Kh7 25.Nc4+/–) 23...e5+= 24.de5 Re5 25.0–0 Be6 26.Rb7 Rb5 27.a4 Rb6 28.Qc5 (better is 28.Qd4!?+/–) 28...Rab7= 29.cb7 Qb8 30.Rc1 Rd6 31.h3 (31.Qc7?? Qc7 32.Rb1 Rb6–+) 31...Rd7 32.Qc6 Rd6 (better is 32...Re7!?+/–) 33.Qc7+– Rd1 34.Kh2 Rd8 35.Qb8 Rb8 36.Rc6 Kf7 37.Re6! Ke6 38.Nc6 Rb7 39.Nd8 Kd6 40.Nb7 Kc6 41.Nd8 (41.Na5 Kd5+–) 41...Kd7 42.Nf7 Ke7 43.Nh8 Kf8 44.g3?? (better is 44.Kg3+–) 44...Kg8+= 45.g4 Kh8 46.Kg3 g5 47.f3 ef3 48.Kf3 Kg7 49.Ke4 Kf7 50.Kd5 Kg6? 51.e4+– (51...Kf7 52.Kc6+–) 1–0. Blauhut,H – Strand,T, corr SOK–90–58, 1990.

8.Bc3 Qe7 9.c5 Bc3 10.Nc3 c6 11.a4 (11.bc6!? bc6 12.Qa4+=) 11...e5= 12.Be2 ed4 13.ed4 Ne4 14.Ra3 (14.Ne4 de4 (worse is 14...Qe4 15.0–0+/–) 15.Nd2 Rd8=) 14...Ndf6 (better is 14...Ndc5!? 15.dc5 Qc5–/+) 15.0–0 Be6 16.Ne5 Bd7 (16...Nd7 17.Nd7 Qd7 18.Bd3=) 17.Ne4 Ne4 18.Re3 f5 19.Qc2 f4 20.Rb3 Bf5 21.Bd3 cb5 22.Rb5 g6 (22...a6 23.Rb2 f3 24.Nf3+–) 23.Rfb1 Bc8 (23...b6 24.cb6 ab6 25.Rd5+–) 24.c6 b6 25.Rd5 Nf6 26.Rdb5 Ba6 27.R5b3 Bd3 28.Qd3 Rac8 (28...Nd5+–) 29.Re1?? (better is 29.a5!? Nd5 30.Qc4 Qe6 31.ab6 ab6 32.Rb6 Rfe8+–) 29...Kg7 (29...Rc6!? 30.Qf3 Re6+/–) 30.Rbb1 Rfe8 31.Rbc1 Qd6 32.Qc4 Re7 33.Qa6 Rcc7 34.h3 Qd4+/– 35.Nf3 Qd8 36.Red1 Qe8+= 37.Qb5 Re6 38.Nd4 Re5 39.Qc4 Rc5?? 40.Ne6+– Kh8 41.Nc7 Rc4 42.Ne8 Rc1 43.Rc1 Ne8 44.c7 Nd6 45.Rd1 (45.Rd1 Nc8 46.Rd8 Kg7 47.Rc8+–) 1–0. Dumontelle,Joe – Robinson,K, April, 1979.

8.Bc3 Be7 9.c5 a6 10.Nbd2 ab5 11.Bb5 c6 12.Bd3 =.

8.Nc3 a6 9.Qb3 Ba5 10.ba6 b6 11.Be2 Ba6 12.0–0 =.

8.Nc3 c5 9.a3 Ba5 10.Rc1 a6 11.cd5 Nd5 12.ba6 =.

8.Nc3 Ne4 9.Qc2 a6 10.a3 Ba5 11.Bd3 ab5 12.cb5 +=.

8.Nbd2 a6 9.Qa4 Qe7 10.c5 Bd2 11.Nd2 Re8 12.Ba3 +=.

8.Nbd2 c5 9.Rc1 cd4 10.Bd4 Re8 11.cd5 Nd5 12.Qb3 =.

8.Nbd2 Ne4 9.Qb3 Bd2 10.Nd2 Nd2 11.Kd2 Ne5 12.cd5 +=.

7.d4 b6

8.Nc3 Bb7 9.Be2 dc4 10.Bc4 c5 11.bc6 (11.Rc1 a6=) 11...Bc6=+ 12.0–0 Rc8 (12...Bf3 13.Qf3 Bh2 14.Kh1=+) 13.Be2 (13.Ba6 Rc7=) 13...Bb8 14.Rc1 Bb7 15.h3 Nd5 16.Nd2? (16.Nd5 Bd5 17.Qa4 Re8=) 16...N7f6 17.Bf3?? Ba6?? 18.Re1? Nb4 19.Be2 Nd3=+ 20.Bd3 Bd3 21.Nf3 Bc4 22.a4 Ba6 23.Ne5 Bb7 24.Qe2 Nd5 25.Nb1 Rc1 26.Rc1 Be5 27.de5 Qg5 28.Qg4 Qg4 29.hg4 Rc8 30.Rc8 Bc8 31.e4 Nb4 32.Ba3 Nc6 33.Bd6= h6 34.f4 Ba6 35.Nc3 Bc4 36.Kf2 a6 37.Ke3 b5 38.ab5 ab5 39.Nd1 Kh7 40.Nb2 Ba2 41.g3 Kg6 42.Nd3 Bb3 43.f5 Kg5=+ 44.Nf2 Bc4 45.Kf3 Bf1 (46.Ke3 Bg2=+). Seifert – Margraf, corr SOK–91–69, 1991.

8.cd5 ed5 9.Qa4 a6 10.Ba3 Ba3 11.Na3 Ne4 12.Rc1 =.

8.cd5 Nd5 9.e4 Nf4 10.Qd2 Ng6 11.Bd3 a6 12.a4 =.

8.Nbd2 Bb7

9.Qc2 c5 10.Be2 (10.cd5 ed5 (< 10...Bd5 11.e4+/–) 11.dc5 bc5=) 10...Rc8 11.Qa4 cd4 12.ed4 Rc7 (12...Ra8=+) 13.c5 (13.0–0!?=) 13...bc5–/+ 14.Qa7 Qe7 (14...c4 15.0–0–/+) 15.dc5 Nc5 16.Qa3 (16.b6 Rd7 17.Qa5 Ra8–/+) 16...e5 17.0–0 (17.Qe3 d4 18.Qg5 Na4–+) 17...d4–+ 18.Nh4 (18.Qb4 Ra8 19.Bc1 e4 20.Ne4 Qe4 21.Qd4 Bh2 (21...Qe2?! 22.Qd6 Ne8 23.Qg3–+) 22.Kh2 Qe2–+) 18...d3 (18...Nce4 19.Qd3 Nd2 20.Nf5–+) 19.Bf3 e4 (better is 19...Ra8! 20.Qa8 Ba8 21.Ba8 Qe6–+) 20.Nf5–/+ Qe6 21.Nd6 Qd6 22.Bd1 Nd5 23.Bd4 Nf4 24.Be3 Ne2 25.Be2= de2 26.Rfe1 Ra8 27.Qb4 Qd5 28.Bc5 e3 29.Ne4 ef2 30.Kf2 Qf5 31.Kg1 Be4 32.Bf2 Qg4 33.Bg3= Re8 34.a4 h5 35.Qd2 Rc2 36.Qf4 Qd7 37.Qd6 Qb7–/+ 38.Ra3 Bg2 39.Bf2 Re6 40.Qd8 Kh7 41.Rg3 Rg6 42.Rg6=+ fg6 43.Qb6 Qd5 44.Qd4 Rc4 45.Qd5= Bd5 46.Re2 Rg4 (47.Bg3 h4=). Diener,Rudolf – Ruediger, corr, (year?).

9.Ke2 a6–/+ 10.a4 Re8 11.Qc2 c5 12.bc6 Bc6 13.Ke1 e5 14.de5 Ne5 15.Nd4 Bb7 16.Qb3 dc4 17.Nc4 Bd5 18.Nf5 Nc4 19.Bc4 Be5 (19...Bg2 20.Rg1 (20.Nd6?! Qd6 21.Bf7 Kh8+=) 20...Bf3 21.Nh6 Kf8 22.Nf7+–) 20.Rd1 Bc4 21.Qc4 Qc8 (worse is 21...Bb2 22.Rd8 Rad8 23.Qa6+/–) 22.Qc8 Rac8 23.Be5 Re5 24.Ng3 Rc4 25.Rd6 h5 26.Rb6 Ra4 27.Rb2 h4 28.Nf1 Rc5 29.Ke2 Ra1 30.f3 Rcc1 31.g3 h3 32.Rb8 Kh7 (32...Kh7 33.Rd8 a5–/+) 0–1. Busele – Meho, playchess.de, 2001.

9.Be2 a6 =.

9.Be2 c5 10.bc6 Bc6 11.0–0 Rc8 12.a4 Bb7 13.Ba3 Nb8 14.Qb3 Ba3 15.Qa3 Nc6 16.c5 bc5 17.Qc5 Nd7 18.Qd6 Nf6 19.Qd8 Rfd8 20.Bb5 a6 21.Bc6 Bc6 22.a5 Bb5 23.Rfc1 h6 24.Ne5 Kf8 25.Nb3 Ne4 26.Rc8 Rc8 27.Rc1 Rc1 28.Nc1 f6 29.Ned3 Nd2 0–1. popovicigelu – odoj, kurnik, 2012.

9.Be2 Ne4 10.0–0 f5 (10...Nd2 11.Nd2 dc4 12.Nc4=) 11.Ne5 Be5 (11...a6 12.f4=) 12.de5+= Ndc5 13.Nf3 (13.Ne4 Ne4 14.cd5 Bd5+=) 13...f4 (13...a6 14.Nd4=) 14.ef4+= Rf4 15.g3 (15.Nd4 a6+=) 15...Rf7= 16.Nd4 dc4 (16...Qg5 17.f4 Qe7 18.cd5 Bd5 19.Bf3=) 17.Bc4 Ng5 (17...Bd5 18.Bd5 Qd5 19.f3=) 18.h4+= Nh3 19.Kh2 Nf2 (19...Nf4 20.Ba3 Qe7 21.Qg4+=) 20.Qe2 (20.Ne6 Qd1 21.Rad1 (21.Rfd1 Nd1 22.Nc5 Nb2 23.Bf7 Kf7 24.Nb7 Rb8–/+) 21...Nd1 22.Nc5+– (worse is 22.Rd1 Rf2 23.Kg1 Rg2 24.Kf1 Ne6 25.Be6 Kh8–+)) 20...Rf4= 21.Nc6 (21.Kg1!? Nh3 22.Kh2=) 21...Bc6+= 22.bc6 Ng4 23.Kh3 (23.Kg1 Rc4 24.Qc4 Ne3+=) 23...Rc4 (23...Re4 24.Be6 Kh8 25.Qf3 Ne5 26.Be5 Re5 27.Rad1+=) 24.Qc4+= Ne3 25.Qf4 Nf1 26.Rf1 Qf8 (26...Qe8 27.Ba3–/+) 27.Qc4 (27.Ba3!?+=) 27...Qe8–/+ 28.Ba3 Qc6 29.Rc1 Rd8 30.Bc5 bc5 31.Qc5 Qf3 32.Qa7? (32.Qc2 Rd3 33.Rg1 c6–+) 32...Qf5 (better is 32...h5 33.Qa5 Qg4 34.Kg2 Qe2 35.Kh3 Rd2 36.Qd2 Qd2 37.Rc7 Qa2–+) 33.Kh2 c5 (33...Rd2 34.Kg1 Qf3 35.Qb8 Kf7 36.Rc7 Kg6 37.Qe8 Kh6 38.Qe6 g6 39.Rh7 Kh7 40.Qe7 Kg8 41.Qe8 Kg7 42.Qe7 Qf7 43.Qf7 Kf7–+) 34.Qc5+= Rd2 35.Kg1 Qf3?? (better is 35...h6 36.Qe3 Ra2 37.Rc8 Kh7=) 36.Qc8+– Kf7 (36...Qf8 37.Qe6 Kh8 38.Rc8+–) 37.Rc7 Kg6 38.Qe6 Kh5 39.Qe8 Kh6 (39...g6 40.Rh7 Kg4 41.Qg6 Kh3 42.Qe6 Qg4 43.Qg4 Kg4 44.Rg7 Kf5 45.Rg5 Ke6+–) 40.Rc6 g6 41.Rg6! (41.Rg6 Kh5 42.Rg5 Kh6 43.Qe6 Qf6 44.Qf6#) 1–0. Kaenel,Hansjuerg – Oegaard,Leif, Arosa U18, 1972.

9.Be2 Qe7 10.0–0 Ne4 (10...c6 11.a4=) 11.Qb3 (11.Ne4 de4 12.Ne5 Be5 13.de5 Rfd8=) 11...Ndf6 (11...Nd2 12.Nd2 c5 13.bc6 Bc6 14.Qd3=) 12.a4 (12.Ne4 Ne4 13.Bd3 c5=) 12...a5 (12...c5 13.Ne4 Ne4 14.a5=) 13.Rfc1 (13.Ne4 Ne4 14.Rac1 dc4 15.Bc4 Ng5 16.Ng5 Qg5=) 13...Rac8 (13...dc4 14.Qc2= (worse is 14.Rc4 Bd5–/+; worse is 14.Bc4 Bh2 15.Nh2 Nd2–/+; 14.Nc4?! Ng4=)) 14.Ba3 (14.Ne4 Ne4 15.cd5 Bd5=) 14...Ba3 (14...Rfd8 15.h3=) 15.Qa3+= Qa3 (15...c5 16.bc6 Qa3 17.Ra3 Bc6 18.Ne4 Ne4 19.Ne5+=) 16.Ra3 c5 17.Ne4 (17.bc6 Bc6 18.Ne4 Ne4+=) 17...Ne4 18.Ne5 Rfd8 19.f3 (19.cd5 ed5 20.dc5 Nc5=) 19...Nd6 20.cd5 ed5 (worse is 20...Bd5 21.dc5 Rc5 22.Rc5 bc5 23.e4+–) 21.Rac3 (21.dc5 bc5 22.Rac3 c4=) 21...cd4 (21...c4 22.e4 f6 23.Nc6 Bc6 24.bc6 Rc6 25.ed5=) 22.Rc8 (22.ed4 Rc3 23.Rc3 Nf5+=) 22...Rc8= 23.Rc8 Bc8 24.ed4 Kf8 (24...Bf5 25.Bd3 f6 26.Bf5 Nf5 27.Nd7=) 25.g4 f6 26.Nd3 (26.Nc6 f5 27.Ne5 Be6=) 26...Be6 (26...Ke7 27.Nf4 Be6 28.Bd3=) 27.Nf4 Bf7 (27...Ke7 28.Bd3 h6 29.Ng6 Kd7 30.h4+=) 28.Bd1 (28.Bd3 g6=) 28…Ne8 (28...g5 29.Ng2=) ½–½. Wolf – Mescheder,Wolfgang, corr DDR–Cup4 sf, 1975.

7.d4 dc4

8.Bc4= a6 9.ba6 ba6 10.Nc3 =.

8.Bc4 a6 9.ba6 b6 10.Qd3 =.

8.Bc4 a6 9.ba6 b6 10.Qe2= Nb8 11.0–0 Ba6 12.Nbd2 =.

8.Bc4 Nb6 9.Bd3 a6 10.ba6 ba6 11.0–0 Bb7 12.Nc3 =.

8.Bc4 Nb6 9.Bd3 Bd7 10.0–0 c6 11.Nc3 (11.a4 Rc8=) 11...Rc8 12.Ne5 (12.a4 Nbd5 13.Nd5 ed5+=) 12...Be5 (12...cb5 13.Nd7 Qd7 14.Nb5=) 13.de5+= Nfd5 14.Ne4 (14.Nd5 ed5 15.bc6 Rc6+=) 14...Qh4 (14...cb5 15.Qh5 h6 16.Nd6+=) 15.Ba3 (15.Nd6 Rc7+=) 15...Rfd8 16.Qf3 cb5 (16...Be8 17.Nd6 Rc7 18.Rac1+=) 17.g3+/– Qh6 18.Nd6 Rc3?? (better is 18...f5!? 19.Nc8 Rc8+=) 19.Qf7 (19.Nf7 Rd3 20.Nh6 gh6+–) 19...Kh8 20.Qf3 Be8 (20...Rd3 21.Nf7 Kg8 22.Nh6 gh6+–) 21.Qf8# 1–0. b4_player – opponent, gamecolony.com, 2007.

8.Bc4 Re8 9.0–0 Nf8 (9...a6 10.Nc3=) 10.Nbd2 (10.Ne5 a6+=) 10...Ng6 (10...Bd7 11.Ne5+=) 11.Qb3 (11.Ne5 Bd7+=) 11...Nd5 (11...a6 12.ba6 ba6 13.Rab1+=) 12.a4 (12.Ne4 Be7+=) 12...b6 (12...Nh4 13.Ba3+=) 13.g3 (13.e4 Ndf4+=) 13...Bf8 (13...Bb7 14.e4 Nb4 15.Bc3+=) 14.Rfc1 (14.a5 Bb7+/–) 14...Bb7+= 15.Bd3 (15.e4 Nf6 16.Bd3 Rc8+=) 15...Nf6 (15...a6 16.a5 ba5 17.Ra5+=) 16.Qc2 (16.Ne5 Ne5 17.de5 Nd5+=) 16...Rc8 17.Ne5 Nd5 18.Qb1 (18.Bg6 hg6 19.Ba3 Ba3 20.Ra3 Nb4+=) 18...Qg5 (18...Ne5 19.de5 (< 19.Bh7 Kh8=+) 19...h6 20.a5=) 19.Ne4 (19.Ndc4 a5+=) 19...Qh5+= 20.Nc6 (20.Ng6 hg6 21.a5 c5+=) 20...f5 (20...Bc6 21.Rc6 Nb4 22.Rc4=) 21.Nc3+= Nf6 (21...Bc6 22.bc6 Nb4 23.Be2+=) 22.Be2 (22.a5 a6+=) 22...Qh6 (22...Ng4 23.Bg4 Qg4 24.a5=) 23.d5 (23.Na7 Rcd8+/–) 23...Bc5 (23...f4 A) < 24.Na7 Ra8 25.Nc6 fe3–/+ (25...ed5?! 26.ef4 Bd6 27.Re1=); B) 24.gf4 ed5 25.Qd3 (< 25.Na7 Qh3 26.Rc2 d4–/+) 25...Bc6 26.bc6=) 24.de6+= Bc6 25.bc6 Re6?? (better is 25...Ng4 26.Bg4 fg4+=) 26.Qf5 Rce8? 27.Bc4 Nf8 28.Nb5 Kh8 29.Be6 Re6 30.Nc7 Rc6 31.Nd5 N8d7 32.Nf6 Nf6 33.Bd4 Qg6 34.Qg6 hg6 35.a5 Ne4 36.ab6 ab6 37.Ra7 Nd2 38.Bg7 Kg8 39.Rd1 b5 40.Rb7 Bb4 41.Bd4 (41...Nc4 42.Rb5+–; 41.Ra1 Rc8 42.Ra6 Nf3 43.Kf1 Re8 44.Rg6 Re7 45.Bc3 Kh7 46.Re7 Kg6 47.Bb4 Nh2 48.Ke2 Ng4+–) 1–0. Fichte,Wolfgang – Radczewill,Horst, Baunatal op 6th, 2000.

8.Bc4= Qe7

9.Nbd2 e5 10.Qc2 e4=+ 11.Ng1 Nb6 12.Bb3 Bf5 13.Ne2 c6 14.bc6 Rac8 15.Ng3 Bg6 16.Rc1 Rc6 17.Qb1 Rc1 18.Bc1 Nbd5 (18...Nfd5 19.Qb2–/+) 19.0–0 (19.Nc4!?=+) 19...Bg3–/+ 20.fg3 Ne3 21.Re1 Nf5 (21...Ned5 22.Nc4 Re8 23.Qb2–/+) 22.Ne4 Nd4 23.Nf6 Qf6 24.Qb2 Rd8 25.Qf2 Qf2 (25...Qc6 26.Bg5 Re8 27.Bd5 Re1 28.Qe1–/+) 26.Kf2 Nb3 27.ab3 Bf5 (27...b6 28.Re7=+) 28.Re7 Bd7 29.Be3 Bc6 30.Ba7 Rd2 31.Re2 ½–½. Hort,Vlastimil – Kuijpers,Franciscus, Moscow, 1963.

9.Nbd2 e5 10.de5 Ne5 11.0–0 Bg4 =.

9.Nbd2 e5 10.Ne5 Ne5 11.de5 Be5 12.Be5 Qe5 13.0–0 Bg4 14.Nf3 (14.Qa4 Rad8 15.Nb3 Bd7=) 14...Qe7 (14...Qe4 15.Rc1=) 15.Be2 Rfd8 (15...Ne4 16.Qc2=) 16.Qc2 Rdc8 17.h3 Be6 (17...Bd7 18.Nd4=) 18.Nd4 Bd5 19.Rfc1 Ne8 (19...c5!? 20.bc6 bc6=) 20.Bd3+= h6 (20...Nf6 21.Bf5 Be4 22.Be4 Ne4 23.Rab1+=) 21.e4 (21.Nf5 Qa3+/–) 21...Be6+= 22.e5 Bd5 (22...Rd8 23.Ne6 Qe6 24.Re1+/–) 23.Nf5+/– Qa3 (23...Qe5?? 24.Re1 Qf6 25.Ne7 Kh8 26.Nd5+–) 24.Qc5 Qd3 25.Ne7 Kh7 26.Nd5 (26.Rd1 Qc4 27.Qd5 Qd5 28.Rd5 Rd8+/–) 26...c6+= 27.Ne7 Rc7 28.bc6 Qd8 (better is 28...bc6!? 29.Rd1 Qb5 30.Qb5 cb5+=) 29.cb7 Rc5 30.Rc5 Rb8 31.Nc6 Qb6 32.Nb8 Qb7 33.Nc6 Qb2 34.Rcc1 Nc7 35.Na7 Ne6 36.Nc6 Nf4 37.Rd1 Qe2 38.Nd4 Qe4 39.Nf3 Qg6 40.Nh4 Nh3 41.Kh2 Qg4 ½–½. Wolf – Stieger,Helmut, BdF, 1998.

9.0–0 e5

10.Nbd2 e4=+ 11.Ne1 Nb6 12.Be2 Bd7 13.a4 Rab8 (13...c6 14.a5 Nbd5 15.bc6 Bc6 16.Nc4=+) 14.a5 (14.Nc2 Rfc8=) 14...Nbd5=+ 15.Qb3 a6 (15...c6 16.Bc4=+) 16.b6 cb6 17.ab6 Rfc8 18.Nc4 (18.Bc4 Be6 19.Ra4 Rc6–+) 18...Be6–/+ 19.Ba3 (19.Ne5 Qd8–/+) 19...Ba3 20.Qa3 Qa3 21.Na3 (21.Ra3!? Rc6 22.f3–/+) 21...Nb6–+ 22.f3 Nbd5 23.fe4 Ne4 24.Nac2 f5 25.Bd3 Rc7 (25...Rc3 26.g4 g6 27.gf5 gf5 28.Ra5–+) 26.g4 g6 27.h4 Rbc8 28.Ra5 (28.Ra3 Kg7–+) 28...Kg7 29.gf5 gf5 30.Kh2 Rc3 31.Rg1 Kf8 32.Rg2 R8c6 33.Kg1 b5 34.h5 Bf7 35.Rh2 h6 36.Be4 fe4 37.Rh4 Re6 38.Kf2 Rf6 39.Ke2 Rcc6 40.Rh2 Rf5 41.Kd2 Bh5 42.Ra2 Bf7 43.Rb2 Rcf6 44.Rb1 Rf2 45.Rf2 Rf2 46.Kc1 h5 47.Nb4 h4 (48.Ned3 ed3 49.Nd3 Rf1 50.Kc2 Rb1 51.Kb1 Bg6–+) 0–1. Scholbach,Tillmann (2060) – Drysdale,Bryan (1990), IECG, 1998.

10.h3 e4=+ 11.Nfd2 c5 (11...Nb6 12.Nc3=+) 12.Qe2 (12.bc6 bc6 13.Qc2 Rb8=) 12...b6 (12...Rd8 13.Nc3=) 13.Rd1 (13.Nc3 Bb7=) 13...Re8 14.Nf1 (14.Nc3 Bb7=) 14...cd4 (14...a6 15.Nc3=) 15.ed4 Nf8 16.Ne3 Ng6 17.Nc3 Nf4 18.Qf1 N6h5 (18...Be6 19.d5 Bd7 20.Ne2=) 19.Ncd5 (19.Kh1 Qh4 20.g3 Ng3 21.fg3 Qg3–+) 19...Qh4 (better is 19...Qg5 20.Kh1 Nd3 21.Bd3 ed3 22.Qd3 Nf4 23.Nf4 Qf4=+) 20.Nf4? (better is 20.Bc3!?=) 20...Qf4–/+ 21.Qe1?? (better is 21.g3 Ng3! 22.Qg2–/+) 21...Qh2–+ 22.Kf1 Nf4 (23.f3 ef3–+) 0–1. Neuhof,KE – Pedersen,S, corr ICCF EU/M/GT/055 (year?).

10.a4 e4

11.Nfd2 Nb6

12.Ba2 Bh2!–/+ 13.Kh1 (13.Kh2 Ng4) 13...Ng4 (14.g3 Bg3 15.fg3 Ne3–+) 0–1. Nielsen,Joergen Axel – Berger,P, corr ICCF EU–1–GT–42, 1969.

12.a5!? Nc4 13.Nc4 =.

12.Bb3 Bh2!–/+ 13.Kh2 Ng4 14.Kg3 Qd6 15.f4 Qg6 (15...Ne3 16.Qh5 Nf1 17.Nf1–+) 16.Qe1 (16.Qe2 Ne5 17.Kh2 Bg4=) 16...Bf5 (16...Re8 17.Rf2–/+) 17.Ba3 (better is 17.Qe2!? Ne3 18.Kf2 Nf1 19.Kf1–/+) 17...Rfe8 (18.Rf2 Ne3 19.Kh2 Ng4 20.Kg1 Nf2 21.Qf2 e3–+) 0–1. Neuhof,KE – Bernard,Herbert, corr ICCF EU/M/162, 1967.

12.Be2 Nbd5.

12.Be2 Be6 13.Nc3 Bd5 14.a5 +=.

12.Be2 Bf5 13.a5 Nbd5 14.Nc4 (14.a6 Rfb8=) 14...Rac8 (14...Rfc8 15.a6 Rab8 16.ab7 Rb7 17.Na5+=) 15.Nbd2 (15.a6 b6=) 15...Bb4 (15...Be6 16.Qc2 Nb4 17.Qb1=) 16.a6 (16...c6 17.ab7 Qb7 18.Na5 Ba5 19.Ra5=; 16.f3 ef3 17.Rf3 Bg4=+). Bonetti,Shane (2110) – Hasek,Frantisek (1840), TT–16 ETC, 2005.

10.Nc3 Nb6

11.Bb3 e4 12.Nd2 Be6 =.

11.Be2 ed4 12.Nd4 Rd8 13.Qc2 Qe5 14.Nf3 (14.g3 Bg4=) 14...Qh5 (14...Bf5 15.Ne5 Bc2 16.Nf3=) 15.Rfe1 (15.Rad1 Be6=) 15...Bf5 (15...Be6 16.e4=) 16.e4 Bg6 17.Bd1 (17.Rad1 Rac8=) 17...Re8 (17...Rd7 18.Qc1 Bc5 19.Nd4=+) 18.h3 (18.g3 Nc4=) 18...Qc5 (18...Rad8 19.a4=+) 19.Nh4= Nc4 20.Ng6 Nb2 (< 20...fg6 21.Qb3 Kf8 22.Na4+=) 21.Qb2 hg6 22.Bb3 Qe5 23.g3 Bc5 24.Kg2 Bd4 (24...g5 25.Rac1=) 25.Rac1 g5 26.Qc2 g4 (26...Rac8 27.Qd3=) 27.hg4 Ng4 28.Nd1 Re7 29.a4 (29.Bd5 Rd8 30.f4 Qh5=) 29...a6 (29...Rd8 30.f4 Qd6 31.Rh1=) 30.f4 Qd6 (30...Qh5 31.Rh1 Qg6 32.e5 Qc2 33.Bc2+=) 31.e5 Qa3 (31...Qb6 32.Rh1 Nh6 33.ba6 Qa6 34.Nc3 Bc3 35.Qc3=) 32.Rh1+= Nh6 33.Nc3 ab5 (33...Rd8 34.Nd5 Red7 35.Nf6 Kf8 36.Nd7 Rd7 37.e6+–) 34.Rh6 gh6 35.Qg6 Kf8 36.Qh6 (36...Kg8 37.Nd5+–) 1–0. Boehnke,Hartmut – Markus,Roland (1945), DESC, 2001.

11.Be2 Rd8 12.de5 Be5 13.Qc2 Bd6 14.Rfd1 Be6 15.Ne4 Ne4 16.Qe4 Bd5 (16...a6 17.ba6 (< 17.Qb7 Bd5 18.Rd5 Nd5=+) 17...ba6 18.Be5=) 17.Qg4+= f6 18.Bd3 Re8 (18...Qe6 19.Bf5 Qe7 20.Qh3+/–) 19.Nh4 (19.Bh7 Kh7 20.Qh5 Kg8 21.Rd5 Nd5 22.Qd5 Qe6 23.Qb7=+) 19...g5? (better is 19...Qe6 20.Nf5 g6+=) 20.Nf5+– Qe6 21.Qh5 (21…Bb4 22.Nh6 Kf8 23.Bh7+–) 1–0. Martello,Juan – Friberger,Torbjoern, corr 3GMM–38, 1996.

11.Be2 e4 12.Nd2 =.

11.Ne5 Be5 12.de5 Nc4 13.ef6 Qf6 =.

10.Nc3 e4

11.Nd2 Nb6 12.Rc1 Nc4 13.Nc4 a6 =.

11.Nd2 Nb6 12.Be2 a5 13.ba6 ba6 14.Qc2 Bb7 15.Nb3 Rac8 (15...Rfb8 16.Na5=) 16.Na5 (16.Rab1 Rfd8=) 16...c5 17.Nb7 (17.Qb3 cd4 18.ed4 Qc7+=) 17...Qb7 18.dc5 Rc5 19.Ba3 Bh2 20.Kh1 Rc6 21.Bf8 Kf8 22.Kh2 Nbd5 23.Rfb1 Qc7 24.Kg1 Nc3 25.Rb3 Kg8 (better is 25...Nfd5!?=) 26.Ba6+/– h5 (26...h6 27.Bb7 Ng4 28.g3+/–) 27.Be2 Rc5 28.g3 (28.Qd2 Ne2 29.Qe2 Ng4+/–) 28...h4 (28...Qe5 29.Rf1+/–) 29.gh4 Ne2 30.Qe2 Rh5 31.f4 ef3 32.Qf3 Rh4 33.Rb2 Qe5 34.Rab1 Ne4 35.Rg2 (better is 35.Qg2!?+/–) 35...Ng5= 36.Qg3 Nh3 37.Kh1 Qg3 38.Rg3 Nf4 39.Kg1 Ne2 40.Kg2 ½–½. Blechar,Mike (2240) – Kover,Warner (2295), 1st WS USCCC–P04, 2005.

11.Nd2 Nb6 12.Be2 Re8 13.a4 Nbd5 (13...Qe6 14.Ba3=) 14.Nc4 (14.Nde4!? Ne4 15.Nd5=) 14...Nc3= 15.Bc3 Nd5 16.Be1 Qg5 17.Kh1 (17.Nd6? Bh3 (17...cd6?! 18.Kh1=+) 18.g3 cd6–+ (18...Bf1?! 19.Ne8 Be2 20.Qe2=+)) 17...Re6 18.Nd6 cd6 19.Ra3 (19.Qb1 Bd7=) 19...Rg6=+ 20.g3 (20.Rg1 Bh3 21.Bf1 Be6=+) 20...Bh3 21.Rg1 Re8 (21...Rf6 22.Ra2=+) 22.Bd2 (22.a5 Rc8=+) 22...Nf6 (22...Rf6 23.Be1–/+) 23.f4 (23.Re1 Bg4=+) 23...ef3–/+ 24.Bf3 Ng4 (better is 24...Qf5!? 25.Be1 Bg4–/+) 25.Qe2= Qe7 (25...d5 26.Rc1=) 26.Re1 (26.Rc1 Nf6 27.Rac3 Ne4+=) 26...d5 (26...Nf6 27.e4=) 27.Rc3 Nf6 28.Rc5 (28.Rec1 Bg4=) 28...b6 29.Rd5 (29.Rc6 Bf5=+) 29...Nd5 30.Bd5 Rd6?? (30...Rd6 31.Bb4 Be6+/–; better is 30...Be6 31.Bc6 Rd8 32.Qd3=+) 31.Bc6?? Rc6–/+ 32.bc6 Qe4 33.Kg1 Qc6 34.a5 ba5 35.Ba5 Re3 36.Qa2 Qe4 37.Qf2 Re1 38.Be1 h6 39.Qd2 Qd5 40.Kf2 Bg4 41.Qf4–/+ f5 42.Bd2 a5 0–1. Van der Weide,Piet – Castiglioni,Giancarlo, Ybbs, 1968.

11.Nd2 Nb6 12.Be2 Bf5 13.a4 =.

11.Nd2 Nb6 12.Be2 Bf5 13.Rc1 =.

10.de5 Ne5

11.Be2 Bd7 12.Nbd2= c6 (12...Nf3 13.Nf3 (< 13.Bf3 Bb5 14.Re1 Rad8=+) 13...Rfd8 14.Qb1=) 13.a4 (13.Be5 Be5 14.Ne5 Qe5=) 13...Rfd8 14.Nc4 (14.Be5 Be5 15.Ne5 Qe5=) 14...Nc4=+ 15.Bc4 Bg4 16.Qb3 (16.Qe2 Ne4 17.Rfd1 cb5 18.ab5 Bf3 19.Qf3 Bh2 20.Kh2 Qc7 21.Kg1 Qc4=) 16...Bf3 (16...Ne4 17.Nd4=+) 17.gf3 Rd7 (17...a6 18.Rfd1=) 18.Rad1 (18.Rfd1 Rad8=) 18...Rad8=+ 19.Kh1 Nh5 (19...cb5 20.Bb5 Rc7 21.Rg1=) 20.Rg1= Qh4 (20...cb5!? 21.Bb5 Rc7=) 21.Rd6+= Rd6 22.Bf7 Kf8 23.Ba3 (23.bc6 bc6 24.Ba3+–) 23...Nf6? (better is 23...g6+/–) 24.Qe6+– Qf2 25.Bd6 Rd6 26.Qd6 Kf7 27.Qg3 Qe3 28.Qg7 Ke6 29.Qg3 Kf7 30.bc6 bc6 31.Qc7 Ke6 32.Qc6 Ke5 33.f4 Qf4 34.Qc7 Kf5 35.Qf4 Kf4 36.Rg7 (36...a6 37.Ra7+–) 1–0. Dluhosch,Thomas – Strohmeier,Josef, BdF, 1985.

11.Be2 Rd8=+ 12.Qc2 Nf3 13.Bf3 Ng4 14.g3 Qg5 15.Nc3 Qh6 16.Bg4 (16.h4 Ne5 17.Be4 Nc4=+) 16...Bg4=+ 17.Qe4 Qh5 (18.Rfc1 Bf3–/+) 0–1. Kern – Pappert,Thomas, compuserve, 1997.

11.Ne5 Be5

12.Ba3 Qd7 13.Bf8 Qd1 14.Rd1 Kf8 15.Na3 Ba1 16.Ra1 =.

12.Ba3 Qd8 13.Bf8 Qd1 14.Rd1 Kf8 15.Na3 Ba1 16.Ra1 =.

12.Ba3 Qe8 13.Bf8 Ba1 14.Bb4 Be5 15.Bc3 Be6 16.Be6 =.

12.Ba3 Bh2 13.Kh2 Qe5 14.Kg1 Qa1 15.Bf8 Kf8 16.Qb3 = (16.Qd8 Ne8=).

12.Qc1 Bb2 13.Qb2 Be6 14.Nd2 Rfd8 15.Be6 Qe6 16.Nf3 =.

12.Qc1 Bd6 13.Qc2 Rd8 14.Nd2 a6 15.ba6 ba6 16.Nf3 =.

12.Qc1 Rd8 13.Nd2 Bb2 14.Qb2 Bg4 15.Nb3 Rd7 16.h3 =.

12.Qc1 Re8 13.a4 a6 14.Be5 Qe5 15.Nd2 ab5 16.ab5 =.

12.Qc1 Bf5 13.Be5 Qe5 14.Nd2 Bg4 15.h3 Bh5 16.Nb3 =.

12.Be5 Qe5 13.Nd2 Bg4 14.Qc2 Rfd8 15.Rfe1 Rd7 16.f3 Bf5 17.Qc1 Rad8 (17...a6 18.a4=+) 18.Nb3= Bd3 (18...Kh8 19.e4 Be6 20.Be6 Qe6 21.Qa3=) 19.Bd3?? (better is 19.Nc5!+/–) 19...Rd3=+ 20.Nd4 (20.Qc5!? R3d5 21.Qa7 Rb5 22.Rad1=) 20...Nd5–/+ 21.Qc5 Re3 22.Kf2? (22.Nc2!? Re1 23.Re1–/+) 22...Re8 23.Nc2 Re2 24.Kg1 b6?? 25.Qc6 Nf4 26.Kf1? g6 27.Rad1? Ng2–+ 28.Qc4?? Ne1 29.Nd4 Rf2! (30.Kf2 Qh2 31.Kf1 Qg2#) 0–1. Struwecker,Sigurd (1670) – Koepcke,Hans Peter (2095), Hamburg–ch qual1, 2003.

12.Be5 Qe5 13.Nd2 Bg4 14.Be2 Be2 (14...Rfd8 15.Bg4 Ng4 16.Qg4 Rd2 17.a4=) 15.Qe2 a6 16.a4 (16.ba6=) ½–½. Feldborg,Brian – Joensson,Paul, corr WC–13/P–E/36, 2002.

12.Be5 Qe5 13.Nd2 Bg4 14.Nf3 Qe4 15.Be2 Rfd8 16.Qc1 =.

12.Be5 Qe5 13.Qd4 Qd4 14.ed4 Rd8 15.Rd1 a6 16.ba6 =.

7.d4 c5

8.Qb3 dc4 9.Bc4 Nb6 10.0–0 cd4 11.Bd4 Qe7 12.Nbd2 e5 13.Bb2 Bg4 (worse is 13...Nc4 14.Nc4 Be6 15.Rac1=) 14.h3 Bf3 15.Nf3 Nc4 16.Qc4 Rac8 17.Qb3 e4 18.Nd4 Qe5 19.Nf3 Qh5 20.Nd2 Rfe8 21.Nc4 Bb8 22.Rfd1 Rc5 23.a4 Rg5 24.Kf1 Qg6 25.Nd6? (better is 25.Bf6 gf6 26.g3+=) 25...Bd6–+ 26.Rd6 Rg2 27.Rad1 Rh2 28.Bf6 Qg2 0–1. Schuchardt,Wolfgang (1685) – Bauer,Norbert (2085), Mecklenburg VP LL1, 2004.

8.Qb3 cd4=+ 9.ed4 b6 (9...dc4 10.Bc4 Qa5 11.Bc3=+) 10.Nbd2 (10.Ba3 Ba3 11.Na3 Bb7=+) 10...Bb7 (10...a6 11.ba6 Ba6 12.Ne5=+) 11.Be2 (11.Ne5 dc4 12.Ndc4 Bd5=) 11...a6 (11...Nh5 12.0–0=+) 12.a4 (12.ba6 Ba6 13.0–0 Bf4=+) 12...a5 (12...dc4 13.Nc4 Bd5 14.ba6 Ra6 15.Qb5 Bc4 16.Qc4=+) 13.Ba3 Ba3 14.Qa3 Ne4 (14...Rc8 15.0–0=) 15.0–0 (15.Ne4 de4 16.Nd2 e5=) 15...Ndf6 (15...Nd2 16.Nd2 Qf6 17.Qe3=) 16.Rac1 (16.c5 Qc7 17.Rac1 Rad8+/–) 16...Rc8 17.Bd3 (better is 17.c5+=) 17...Nd2–/+ 18.Nd2 dc4 19.Nc4 Qd5 (19...Qd4 20.Rfd1 Qg4 21.Ne3–/+) 20.Ne3 (20.f3 Qd4 21.Kh1 Rc5–/+) 20...Qd4–/+ 21.Rcd1 (better is 21.Rfd1 Qf4 22.Rc8 Rc8 23.Be2–/+) 21...Rc3?? (better is 21...Qf4–/+) 22.Bh7+– Nh7 23.Qf8! Nf8 24.Rd4 ½–½. Hoelldorfer,August – Hielscher,Klaus_Wieprecht, Bayern–ch Seniors, 1999.

8.dc5 Nc5 9.Be2 Nce4 10.0–0 a6 11.cd5 ed5 12.ba6 ba6 13.Nbd2 Be6 14.Nb3 a5 15.Nbd4 Ng4 16.Rb1 Qc7 17.g3 Bc5 18.Ne1 Ngf6 19.Nd3 Bh3 20.Nb5 Qd8 21.Nc5 Nc5 22.Re1 Rc8 23.Bf6 Qf6 24.Qd5 Rfd8 25.Qf3 Qf3 26.Bf3 Bf5 27.Rbc1 Nd3 28.Rc8 Rc8 29.Rd1 Nb2 30.Rd2 Nc4 31.Rd4 Ne5 32.Kg2 Be6 33.Bd5 Bd5 34.Rd5 f6 35.Nd4 Nc4 36.Rd7 g6 37.g4 Rb8 38.Ne6 Rb6 39.Rg7 Kh8 40.Re7 Kg8 41.Nf4 Rd6 42.e4 Ne5 43.Kg3 Nd3 44.f3 Nf4 45.Kf4 Rd3 46.h4 g5 47.hg5. Subedei – RDN33, ChessWorld.net, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 Bd6 5.e3 0–0 6.c4 Nbd7 7.d4 c5)

8.bc6 bc6 9.c5 Bc7 10.Qa4 Ba5 11.Bc3 Bc3 12.Nc3 Qc7 13.Ba6 (13.Rc1 Re8=) 13...Ba6 14.Qa6 e5 15.0–0 e4 16.Nd2 Ng4 17.g3 f5 18.Kg2 Ngf6 19.f3 ½–½. Barton,Rainer – Schwanda,Georg, Baden–ch AT3, 1994.

8.bc6 bc6 9.c5 Bc7 10.Qa4 Bb7 11.Bd3 =.

8.bc6 bc6 9.c5 Bc7 10.Qa4 Nb8 11.Be2 Ne4 12.0–0 f5 13.Nbd2 Nd2 14.Nd2 g5 15.h3 Rf6 16.f4 Rg6 17.Qd1 gf4 18.ef4 Qh4 19.Rf3 Bf4 20.Nf1 Nd7 21.Bc1 Bc7 22.Be3 f4 23.Bf2 Qg5 24.g3 fg3 25.Ng3 Qh4 26.Kh2 Nf6 27.Kg2 Ne4 28.Qe1 e5 29.Qh1 Nf2 30.Kf2 e4 0–1. Poschmann,Hans – Dunetz,David, Livermore, 1998.

8.Nbd2 cd4 9.ed4 dc4 10.Bc4 Nb6 11.Be2 Nfd5 (11...a6 12.0–0+=) 12.0–0 a6 13.a4 ab5 14.ab5 Ra1 15.Ba1 Nf4 16.h3 (16.Ne4 Bc7+=) 16...Bb4 17.Re1 Ne2 18.Qe2 Nd5 19.Qe4 (19.Rb1 Bd7–/+) 19...Qa5 (19...Bd7 20.Qd3–+) 20.Nc4–/+ Qb5 21.Rc1 f6 22.Ne3 Bd7 23.Nd5 ed5 24.Qe3 (24.Qf4 Qd3–/+) 24...Re8–+ 25.Qf4 Qd3 26.Qc7 (26.Bb2 Qb3 27.Ba1 Qa3–+) 26...Rc8 (26...Rc8 27.Qf4 Bh3 28.gh3 Rc1 29.Qc1 Qf3 30.Qc8 Kf7 31.Qb7 Be7–+) 0–1. jackhammer3000 (1915) – harpov (2540), gameknot.com, 2015.

8.cd5 ed5 9.dc5 Nc5 10.Be2 Bg4 11.Nc3 Nce4 12.Rc1 =.

8.cd5 Nd5 9.Nc3 Qa5 10.Qd2 cd4 11.Nd5 Qd2 12.Kd2 de3? (12...ed5 13.Bd4 Nc5 14.Be2+=) 13.Ne3= Nc5?? (13...Re8 14.Bd3 e5+–) 14.Rd1+– Ne4 15.Ke2 Bd7 (15...Be7 16.Rd4 Nd6 17.a4+–) 16.Nc4 Bb5 17.Ke3 Bc4 18.Bc4 (18.Ke4?! f5 19.Kd4 Ba2+=) 18...Nf2 (18...b5 19.Bb3 f5 20.Be6 Kh8 21.Bf5 Rf5 22.Ke4 Rf4 23.Kd5+–) 19.Kf2 (19.Rd6?! Nh1 20.Rd1 Rac8+–) 19...Bc5 (19...Rfd8 20.Bd3+–) 20.Ke2 Rad8 21.Rhf1 h6 (21...Be7 22.Ne5 Bf6 23.Bd3 Be5 24.Be5+–) 22.Ne5 a6 (22...Rd1 23.Rd1 b6+–) 23.Rd8 Rd8 24.Rf7 b5 (24...Bd4 25.Be6 Rd6 26.Rb7 Re6 27.Bd4+–) 25.Be6 Re8 (25...Rd6 26.Bb3 a5 27.Rc7 Kf8 28.Rc5 a4+–) 26.Rf8! Kf8 (26...Kh7 27.Bg8 Kh8 28.Re8 Bf8 29.Rf8 b4 30.Nf7#) 27.Ng6# 1–0. marekt – p_head, ChessWorld.net, 2003.

8.cd5 Nd5 9.Nc3 Nc3 10.Bc3 Qe7 11.Qc2 =.

8.cd5 Nd5 9.Nc3 Re8 10.Be2 N5f6 11.Qd2 Qc7 12.Rd1 =.

8.cd5 Nd5 9.e4 Qa5 10.Qd2 Nb4 11.Nc3 cd4 12.Nd4 =.

7.d4 c6

8.a4 Re8 9.Qb3 (9...c5 10.Ba3=+) =+. Kuhlmann,AEJ – Nixon,TL, corr ICCF EU–GT–H–50, 1974.

8.Nc3 Re8 9.Bd3 e5 10.de5 Ne5 11.Ne5 Be5 12.Qc2 d4 13.Rd1 Qc7 14.ed4 Bd4 15.Ne2 Bb2 16.Qb2 Ng4 17.h3 Ne5 18.0–0 Be6 19.bc6 bc6 20.Qc2 Nd3 21.Qd3 Qa5 22.Qc2 Qc5 23.Rc1 Bf5 24.Qb2 Bd3 25.Rfe1 Rad8 (25...Bc4? 26.Qc2+–) 26.Red1 Qa5 (26...Bc4 27.Rd8 Rd8 28.Qc2+/–) 27.Nd4 Bc4 28.Rc4 c5 29.Rd2 cd4 30.Rcd4 Re1 31.Kh2 Qc7 32.f4 Rde8 33.Rc2 Qe7 34.Qc3 h6 35.Qd2 Qh4 36.Qf2 Qh5 37.Ra4 a5 38.Rc8 Qb5 (38...Rh1! 39.Kh1 Rc8=) 39.Qe1+/– Exerts pressure on the isolated pawn 39...Rc8 40.Ra5 Qc4 41.Qe3 1–0. Matveenko,Yury (2145) – Rysbayeva,Korlan (1955), Voronezh op–B, 2008.

8.c5 Bc7

9.Qa4 cb5 10.Bb5 e5 11.0–0 e4 12.Nfd2 Ng4 13.h3 Bh2 =.

9.Qa4 Ne4 10.b6 Bb8 11.Bd3 e5 12.0–0 ed4 13.ba7 Ra7 =.

9.Qa4 Ne4 10.Nc3 Ba5 11.Rc1 e5 12.Be2 ed4 13.Qd4 Ndc5 =+.

9.Qa4 Ne4 10.bc6 bc6 11.Nbd2 Ba5 12.Rb1 Nd2 13.Nd2 Rb8 =.

9.Qa4 Ne4 10.Nbd2 Nd2 11.Nd2 Ba5 12.Rc1 cb5 13.Bb5 Bd2 =.

9.bc6 bc6 10.Bd3 (10.Qa4 Rb8 (10...Ne4= 11.Nbd2 Ba5 12.Rb1 Rb8 13.Bd3 e5=; 10...Bb7 11.Nbd2 a5 12.Rb1 Ba6 13.Qc6 Bf1+=) 11.Bc1 e5 12.Qa7 Ne4 13.Nbd2 ed4=; 10.Nbd2 Rb8 (10...e5 11.de5 Ng4 12.Qa4 Rb8 13.Bd4 Nge5=; 10...a5 11.Qa4 Ba6 12.Qc6 Bf1 13.Nf1 Rb8+=) 11.Rb1 e5 12.de5 Ne4 13.Bd4 Ndc5=) 10...Rb8 (10...Re8 11.0–0 Rb8 12.Qc2 Qe7 13.Nbd2 e5=; 10...a5 11.0–0 Ba6 12.Ba6 Ra6 13.Nc3 Qe7=; 10...Ne4 11.0–0 Rb8 12.Qc2 e5 13.Be4 de4=) 11.Bc3 (11.Qc2 Qe8 12.0–0 e5 13.de5 Ne5=) 11...e5 (11...Ne4 12.Qc2 f5 13.Nbd2 e5=+) 12.Ne5 (< 12.de5 Ne4–/+ 13.Bd4 Ndc5=+) 12...Ne5 13.de5 Ng4 (13...Nd7 14.Qh5 g6 15.Qe2=+) 14.0–0 (14.Bd4!?=) 14...Qh4=+ (< 14...Be5 15.Be5 Ne5 16.Bh7 Kh7 17.Qh5 Kg8 18.Qe5+/–) 15.h3 Ne5 16.f4 (16.Bc2=+) 16...Bg4 (16...Nd3 17.Qd3 Re8 18.Qd4=+) 17.Qd2 (17.hg4!? Ng4 18.Rf3 Qh2 19.Kf1=) 17...Nd3=+ 18.Qd3 Bh3 19.gh3 Qg3 ½–½. Gerold,Guenter – Schwarz,A, Bad Neustadt, 2000.

9.Nbd2 Ba5 10.Qc2 Nb8 11.Bc3 Bc7 12.Ne5 cb5 13.Bb5 Be5 =.

9.Nbd2 Ba5 10.bc6 bc6 11.Bd3 e5 12.Ne5 Ne5 13.de5 Ne4 =.

9.Nbd2 Ba5 10.Bd3 cb5 11.Bb5 Ne4 12.Rb1 Bb4 13.a3 Qa5 +=.

9.Nbd2 Ba5 10.Be2 cb5 11.Bb5 a6 12.Bd3 Qc7 13.0–0 b6 +=.

9.Nbd2 Rb8 10.Rb1 Ba5 11.bc6 bc6 12.Bd3 Bd2 13.Nd2 Qa5 =.

9.Nbd2 Rb8 10.Rc1 Ne4 11.Ne4 de4 12.Nd2 Nf6 13.a4 Re8 +=.

9.Nbd2 Rb8 10.Bc3 cb5 11.Bb5 a6 12.Bd3 b5 13.Rc1 Qe7 +=.

9.Nbd2 Rb8 10.Be2 cb5 11.Bb5 Re8 12.0–0 Ng4 13.Rc1 a6 +=.

9.Nbd2 Nb8 10.a4 b6 11.Qc2 bc5 12.dc5 Qe7 13.Be2 e5 +=.

9.Nbd2 Ne4

10.Rb1 e5 11.bc6 Nd2 12.Kd2 bc6 13.Qa4 Rb8 =.

10.bc6 bc6 11.Rb1 Nd2 12.Qd2 e5 13.Ne5 Be5 =.

10.Bd3 Nd2 11.Qd2 cb5 12.Bb5 Nf6 13.0–0 Qe7 =.

10.Be2 cb5 11.Bb5 b6 12.cb6 Nb6 13.Ne4 de4 =.

10.Ne4 de4 11.Nd2 Nf6 12.bc6 bc6 13.Rb1 Qd5 +=.

9.Nbd2 Re8

10.Qa4 cb5 11.Bb5 a6 12.0–0 Rb8 13.Bd3 e5 =.

10.Rb1 a6 11.bc6 bc6 12.Qa4 Bb7 13.Bd3 e5 =.

10.Qc2 e5 11.de5 Ne5 12.Be5 Be5 13.Rb1 Bg4 =.

10.bc6 bc6 11.Qa4 Bb7 12.Rb1 a5 13.Bc3 Ra7 +=.

10.Be2 cb5 11.Bb5 Ne4 12.0–0 Nef6 13.Rc1 a6 +=.

10.Be2 Qe7 11.bc6 bc6 12.Qa4 Nb8 13.0–0 a5 =.

10.Be2 e5

11.de5 Ne4 12.Rc1 Qe7 13.Qc2 Nd2 =.

11.Ne5 Ne5 12.de5 Be5 13.Be5 Re5 14.0–0 Qc7 15.Rc1 Bd7

16.a4 Re7= 17.Nb3 a6 18.ba6 ba6 19.Nd4 Ne4 =.

16.a4 Re7= 17.Bd3 Bg4 18.Qc2 Rae8 19.bc6 bc6 =.

16.a4 Re7= 17.Nf3 Rae8 18.Nd4 Ne4 19.Bd3 f5 =.

16.a4 Rae8 17.Nb3 Ne4 18.Nd4 cb5 19.ab5 Nc5 =.

16.a4 Rae8 17.Bd3 Bf5 18.Bf5 Rf5 19.Nf3 Rh5 =.

16.a4 Rae8 17.Re1 R5e6 18.Nf3 Ne4 19.Qd4 Rh6 =.

16.a4 Rae8 17.Nf3 Rh5 18.h3 Ne4 19.Qd4 Bf5 +=.

16.Qb3 cb5 17.Bb5 Rc8 18.Be2= Ne4 19.Ne4 de4 =.

16.Qb3 Re7 17.a4 d4 18.b6 Qd8 19.Nc4 de3 =.

16.Qb3 Re7 17.b6 ab6 18.cb6 Qd6 19.Rc3 c5 =+.

16.Qb3 Re7 17.Rfd1 d4 18.b6 Qb8 19.Nc4 de3 =.

16.Qb3 Re7 17.Nf3 Qa5 18.Nd4 Rc8 19.Rc2 Ne4 =.

16.Qb3 Ree8 17.a4 Rad8 18.Bd3 Be6 19.Qb2 Ng4 =.

16.Qb3 Ree8 17.Rfd1 Re7 18.Nf3 Bg4 19.Qd3 Qa5 =.

16.Nf3 Re7 17.a4 Rae8 18.Nd4 Ne4 19.Bd3 f5 =.

16.Nf3 Re7 17.Nd4 cb5 18.Bb5 Ng4 19.g3 Ne5 =.

16.Nf3 Ree8 17.a4 Ne4 18.Nd4 Rac8 19.Bd3 Qe5 =.

16.Nf3 Ree8 17.Nd4 Re5 18.a4 Ne4 19.Bd3 cb5 =.

16.Nf3 Rh5 17.a4 Bg4 18.h3 Bf3 19.Bf3 Rh4 =.

16.Nf3 Rh5 17.bc6 bc6 18.h3 Re8 19.Bd3 Qc8 =.

16.Qb3 Rd8

17.a4 cb5 18.ab5 Bg4 19.Bg4 Ng4 +=.

17.Qa4 cb5 18.Bb5 Rh5 19.h3 Bb5 =.

17.b6 ab6 18.cb6 Qd6= 19.Rfd1 Ra8 =.

17.Rfd1 cb5 18.Nf3 (18.Bb5 Bg4 19.f3 Bd7=) 18...Rh5 19.Bb5 Bg4 20.Be2 Bf3 21.Bf3 Qh2 (21...Rh2 22.Bd5 Nd5 23.Rd5+=) 22.Kf1 Re5 (22...Rd7 23.c6 bc6 24.Rc6=) 23.Qb7 Ree8 24.Ke2 (24.Bd5?? Nd5 25.Rd5 Qh1 26.Ke2 Qc1–+) 24...d4 (24...Rb8 25.Qa6 Rb2 26.Rd2 Rd2 27.Kd2 Qh4=) 25.Rb1 (25.Qa7 Qh4 26.g3 Qh6=) 25...g5 (25...d3 26.Rd3 Rd3 27.Kd3=) 26.Qb2 (26.Rbc1 Qe5 27.Bc6 Re6=+) 26...Qf4 (26...g4 27.Bc6 Re6 28.Bb7=+) 27.Kf1= de3 28.Rd8 Rd8 29.fe3 Qf5 30.Kg1 g4 31.Bc6 Qg5 (31...g3 32.Bf3=+) 32.Rf1 (32.Qa3 Rc8 33.Qa7 Qe3 34.Kh1 Qh6 (34...Rc6?! 35.Qa8 Kg7 36.Qc6=+) 35.Kg1 g3–+ (35...Rc6?! 36.Qa8 Kg7 37.Qc6=+)) 32...Qe3=+ 33.Qf2 Qf2 34.Rf2 (34.Kf2? Rc8 35.Bb7 Rc5–+) 34...Rd1 (34...Kg7 35.Rc2=+) 35.Kh2 Kg7 36.Rc2 Rd4 (36...h5 37.Kg3=+) 37.a3 (37.Kg3 Kg6=) 37...Kg6 (37...h6 38.Bb7 Ne8 39.c6=+) 38.g3 (38.Bb7 Ne8=) 38...a5 (38...h5 39.Bg2 Rd7 40.c6=) 39.Kg2 Kg7 ½–½. WarrenW (2090) – pierre (2170), internet, 2008.

17.Nf3 Rh5 18.b6 ab6 19.cb6 Qd6 =.

7.cd5 ed5

8.Qc2 Re8 9.Be2 Ne5 (9...a6 10.Nc3+=) 10.Be5 Be5 11.Ne5 Re5 12.0–0 Bf5 13.Qc5 b6 (13...Ne4 14.Qd4 Qd6 15.Rc1=) 14.Qd4 Re4 15.Qb2 Qd6 16.d4 Rh4 17.g3 Ng4 (17...Rh3 18.Rc1=) 18.Bg4 (18.Qa3 Qg6 19.Qe7 Rh2 (19...Nh2 20.Qh4 Nf1 21.Nc3 Ne3 22.fe3+–) 20.Bg4 Qg4 21.Kh2 Qh3 22.Kg1 Be4 23.Qe4 de4–+) 18...Bg4 19.f3 (19.gh4?? Qg6 20.Qc2 Qc2–+) 19...Bh3 20.Re1 (20.Rc1 Rh6=) 20...Rh6 21.Nc3 Bd7 22.Ne2 (22.Rac1 c6=) 22...c6 (22...a6 23.ba6 Ra6 24.e4+=) 23.bc6= Bc6 24.Nf4 Qd7 25.e4 (25.Rac1 Re8=) 25...Rd8 26.e5 Bb5 27.a4 Bc4 28.Ra3 Rb8 29.Qd2 a6 30.Rea1 Rc8 31.Ng2 Rhc6 32.Rc3 Qh3 33.Ne3 Qh6 34.f4 Qg6 35.f5 Qg5 36.Rca3 h6 37.Qf2 Rb8 38.h4 Qe7 39.Qf4= Qc7 40.f6 gf6 41.Ng4 fe5 42.Ne5 Re6 43.Rf3 Rf8 44.Qg4 Kh7 45.Qf5 Kg7= 46.Re1 Qe7 47.Ree3 Qd6 48.Qg4 Rg6 49.Ng6 Qg6 50.Qd7 b5 51.Rf4 Kh8 52.Ref3 f5 53.ab5 ab5 54.Rf5 Rf5 55.Qf5 Qf5 56.Rf5 Kg7 57.Kf2 b4 58.Ke3 b3 59.Rf2 Bb5 60.Rb2 Ba4 61.Kd3 Kg6 62.Kc3 Bd7 63.Rb3 Bf5 64.Rb6 Kg7 65.Kb4 Bg4 66.Kc5 Bf3 67.Rd6 1–0. Degterev,Pavel (2545) – Del Vecchio,Alain (2520), Memorial Bernstein A, 2007.

8.Nc3 Nb6 9.Qc2 =+.

8.Nc3 Nc5 9.Be2 Bf5 10.d4 Nce4 11.0–0 Nc3 12.Bc3 Ne4 (12...Re8 13.Ne5=+) 13.Bb2 Re8 14.Qb3 Re6 (14...Bg4 15.h3 Bf3 16.Bf3=) 15.Ba3= Bg4 16.Bd6 Qd6 17.Qb2 (17.Qc2 Rae8=) 17...Bf3 18.Bf3 f5 (18...Rh6 19.h3=) 19.Rac1 Rae8 20.Qc2 R8e7 21.g3 g5 (21...Qd7 22.Be2=) 22.Be4 (22.Bg2 f4=) 22...fe4 (< 22...Re4 23.f3 Re3 24.Qf5+/–) 23.Qc5 Qd7 (23...a6 24.ba6 ba6 25.Rc2=) 24.Rc3 (24.Qa7!? Kg7 25.Qb7+/–) 24...b6 (24...Rb6 25.Rfc1=) 25.Qa3 (25.Qb4 g4=) 25...Rh6 (25...Qb5 26.Qa7 c6 27.Qb8 Re8 28.Qc7=) 26.f4 (26.Qa7 Qh3 27.Qa8 Kg7–+) 26...ef3 27.Rf3 Rf7? (better is 27...g4 28.Rf4 a5+/–) 28.Rf7+– Qf7 29.Qa7 Rh2?? (better is 29...Rf6 30.Qb8 Qf8 31.Qf8 Rf8 32.Rc7 g4+–) 30.Qb8 (30…Kg7 A) 31.Kh2?! Qh5 32.Kg1 Qd1 33.Kf2 Qd2 34.Kf3 A1) 34...Qc3 35.Qd8 Qc4 36.Qg5 Kf7 37.Qf5 Kg7 38.Qd7 Kf6 39.Qc6 (< 39.Qh7 Qf1 40.Kg4 Qd1 41.Kf4 Qf1 42.Kg4 Qd1 43.Kf4 Qf1 44.Kg4=) 39...Qc6 40.bc6+/–; A2) 34...Qd1 35.Kg2 Qe2 36.Kh3 Qh5 37.Kg2 Qe2 38.Kh1 Qe1 39.Kg2 Qc3=; B) 31.Rc7 Ra2 32.Rf7 Kf7 33.Qb7 Ke6 34.Qc6 Ke7 35.Qd5 Ra1 36.Kf2+–; 30.Kh2?! Qh5 31.Kg1 Qd1 32.Kf2 Qd2 33.Kf3 Qd1 34.Kg2 Qe2 35.Kh3 Qh5 36.Kg2 Qe2 37.Kh1 Qe1 38.Kh2 Qe2 39.Kg1 Qe1 40.Kg2 Qe2= (< 40...Qc3 41.Qa8 Kg7 42.Qd5 Qe3 43.Qe5 Qe5 44.de5+=)) 1–0. Melich,Jindrich (2170) – Grycel,Kamil, Stary Smokovec op, 1996.

8.Be2 Re8 9.0–0 c5 10.bc6 bc6 11.Nd4 c5 12.Nf5 Ne5 13.Nd6 Qd6 14.Bf3 (14.Nc3 Rb8 15.Nb5 Qd7 16.Be5 Re5=+) 14...Rb8 15.Be5 Qe5 16.Nc3 d4 17.Ne2 Ba6 18.Re1 Be2 19.Re2 d3 20.Re1 Rb7?? (better is 20...Rb2–/+) 21.Bb7+– Rd8 22.Rb1 c4 23.Qa4 c3 24.dc3 Qc3 25.Qa7 Qc7 26.Red1 Ng4 27.g3 Qc2 28.e4 Qc7 29.Qa3 Ne5 30.Bd5 h6 31.f4 Nf3 32.Kg2 (better is 32.Kh1 Qc2 33.Qb2+–) 32...Qc2 33.Kf1 Qe2 0–1. valpa – cinephos, HCL–C2034 playchess.de, 2003.

7.Be2 a6

8.a4 ab5 9.ab5 Ra1 10.Ba1 dc4 11.Qc2 Qe7 12.Qc4 e5 13.Nc3 Nc5 (13...e4 14.Nd4+=) 14.Bb2+= Be6 15.Qh4 e4 16.Nd4 Bd7 17.0–0 Ra8 18.f4 ef3 (18...h6 19.Qg3+=) 19.Bf3 h6 20.Nde2 (20.Be2 Nce4 21.Ne4 Ne4 22.Qe7 Be7=) 20...Re8 (20...Nd3 21.Ba1+=) 21.Qc4 Be6 22.Nd5 Nd5 23.Bd5 Bd5 24.Qd5 Rd8 25.Qa2 Ne4 26.Bd4 c5 27.bc6 bc6 28.Bb6 (28.Nc3 Nd2 29.Qd2 c5+=) 28...Rd7 29.Qa8 Kh7 30.Qc6 Nd2 31.Rc1 Ne4 32.Rf1 Bc5 ½–½, Boehnke,Hartmut (2085) – Ruhmke,Stephan, corr WS/H/171 ICCF, 2009.

8.a4 ab5 9.ab5 Ra1 10.Ba1 e5 11.0–0 b6 (11...e4 12.Nd4+=) 12.cd5 Nd5 13.Qb3 Bb7 14.Nc3 Nc3 15.Qc3 Nc5 (better is 15...Qf6!?=) 16.Ne5+/– Ne4 17.Qd4 f6? (17...Qg5 18.Nc6 Re8 19.f4+/–) 18.Nc6 (better is 18.Qc4!? Kh8 19.Nf7 Rf7 20.Qf7 Nd2 21.Rd1+–) 18...Bc6+/– 19.bc6 Qe7 20.Bc4 Kh8 21.Bd5 Nc5 22.f4 Ra8 23.Bb2 h6 24.Ra1 Ra1 25.Ba1 Qd8 26.Qc4 Qa8 27.Qc3 (27.Bd4!?+–) 27...Qa4+/– 28.d4?? (better is 28.Qc1+/–) 28...Qd1–+ 29.Kf2 Nd3 30.Kg3 h5 (better is 30...Qe2 31.Qd3 Qd3–+) 31.Bf3+= Qb1?? (31...Qf1 32.Qd2 g5–+) 32.Be4+– (32.Bh5 Bb4 33.Qc4 Be1 34.Kh3 Nf2 35.Kg3 Qf5–+ (35...Qa1?! 36.Bg6+=)) 32...h4 33.Kh4 Nf4?? 34.Bb1 1–0. druhynejhorsi (1780) – dergolem (1800), kurnik, 2012.

8.ba6 b6 9.cd5 Nd5 (9...ed5 10.0–0=+) 10.0–0 (10.e4 Nf4 11.0–0 Ne2 12.Qe2 Ba6=+) 10...Ba6 11.d4 (11.d3 Bb7=+) 11...Be2 12.Qe2 f5 (12...Qf6 13.e4 Nf4 14.Qc2–/+) 13.Rc1 N7f6 14.Nbd2 Qe8 (14...Qd7 15.Nc4=+) 15.Nc4 Ra4 (15...Qh5 16.Nd6 cd6 17.a4=+) 16.a3 (16.Nce5 Qh5=) 16...Qh5 17.Qc2 (17.Nd6 cd6 18.Rc6 Ne4=) 17...Rfa8=+ 18.Qd3 (18.Nd6 cd6 19.Qc6 Ne4=+) 18...Ne4 19.Qb3 (19.Nd6 cd6 20.Rab1 Qg6=+) 19...Qe8 (19...Qg6 20.Nce5 Qf6 21.Rc6=) 20.Nce5 (20.Nd6 cd6 21.Rab1 Qg6=+) 20...b5 (20...c5 21.dc5 Nc5 22.Qc2=+) 21.Nd3 (21.Nc6 f4=) 21...Nb6 (21...Qd7 22.Nde5 Qe8 23.Nc6=) 22.Nde5= R4a6 23.Qc2 Na4 24.Rcb1 Nb2 25.Qb2 Ra3 26.Ra3 Ra3 27.Re1 Ra6 28.Rc1 Ba3–/+ 29.Qa2 Ra4 30.Rc6=+ Bd6 31.Qb2 Qa8 32.Rc1? Qd5 33.Rc2 b4 34.Qc1 Qa5 35.Qb2 b3 36.Rc1–+ Qb5?? 37.Rb1 Ra2–+ 38.Qc1 b2 39.Qe1 Be5 40.Ne5 Qa5 41.Qa5 Ra5–+ (42.Kf1 Nd2 43.Ke2 Nb1–+) 0–1. Bonetti,Shane – Woelfelschneider,Peter, HFK–049.02 TSC, 2003.

8.cd5 Nd5 9.Nc3 =+.

7.Be2 b6

8.0–0 Bb7 9.a4 a6 10.Na3 (10.d4 dc4 11.Nbd2 ab5 12.ab5 Ra1 13.Ba1 Qe7=) 10...ab5 11.ab5 Qe7 12.Nc2 (12.Qb3 Ra5 13.cd5 Bd5=) 12...Ra1 13.Ba1 (13.Qa1 Ra8 14.Qd1 e5=+) 13...dc4 14.Bc4 (14.Nce1 Bd5 15.Qc2 Ra8 16.Bf6 Nf6 17.Bc4 c5=+) 14...Ng4–/+ 15.Ncd4 Bf3 16.Nf3 Nh2! 17.Re1 (17.Nh2 Bh2) 17...Ng4 (17...Nf3 18.Qf3 Qh4 19.d3–/+) 18.g3 (18.Qc2 Rc8=+) 18...e5 (18...Ndf6 19.Nh2 Ne5 20.Be5 Be5 21.d4–/+) 19.Nh2 (19.d3 Qf6–/+) 19...Nh2 20.Kh2 Qg5 (20...Qf6 21.Kg2–/+) 21.Qf3 Qg6 (21...Nc5 22.d3–/+) 22.Bd5 (22.d3 Nc5 23.e4 Rd8–/+) 22...Nc5–/+ 23.Bc3? (better is 23.e4–/+) 23...e4–+ 24.Qe2 Nd3 25.Rf1 Nf2! 26.Qf2 Qh5 27.Kg1 Qd5 28.Bg7 Kg7 29.Qf6 Kg8 30.g4 Qe5 31.Qh6 f6 32.Rf2 Qg3 (33.Kf1 Qg4–+) 0–1. Lanca,Ivan (2280) – Kolarik,Josef (2170), corr Moravia–ch8, 1998.

8.0–0 Bb7 9.cd5 Bd5 10.d3 Bb7 11.Nbd2 Be7 (11...a6 12.a4=) 12.Nd4 Bd6 (12...a6 13.Nc6 Bc6 14.bc6+=) 13.Nc4 Nc5 14.Nc6 (14.Nc6 Bc6 15.bc6+=). Kural,A. Serhat (2000) – Azzoug,Samir (1670), Champions League, 2007.

7.Be2 Nb6

8.0–0 dc4 9.a4 a6 10.a5 Nbd5 11.ba6 Ra6 12.Bc4 Ra8 13.d3 Ng4 14.e4 Nge3 15.fe3 Ne3 16.Qb3 Nf1 17.Kf1 c6 18.Qc3 f6 19.Nbd2 Qe7 20.Nb3 Kh8 21.d4 e5 22.de5 fe5 23.Kg1 Re8 24.Qe3 Be6 25.Be6 Qe6 26.Nc5 Qe7 27.Nd3 Qc7 28.Bc3 Ra6 29.Qg5 b6 30.Nde5 Be5 31.Be5 Qd7 32.Qh5 Kg8 33.ab6 Rb6 34.Bd6 Rb5 35.e5 Rd5 36.Re1 Kh8 37.g3 Ra8 38.Ng5 g6 39.Qf3 Kg8 40.e6 Qa7 41.Kh1 Rf5 42.Qc6 Qa5 43.Rd1 Qa4 44.Qa4 Ra4 45.e7 Ra8 46.Bb8 Rf8 47.ef8Q Kf8 48.Nh7 Kf7 49.Ng5 Kf6 50.Bf4 Ra5 51.Rd6 Kg7 52.h4 Ra1 53.Kg2 Ra7 54.Be5 Kf8 55.Rg6 Ra2 56.Kh3 Ke7 57.h5 Re2 58.Bf6 Kd6 59.h6 Re8 60.h7 Kd7 61.Be5 Rf8 62.Rg8 Rf1 63.Kg2 Rd1 64.Rg7 Kc6 65.Rc7 Kb5 66.h8Q Rd2 67.Kh3 Rd8 68.Qd8 Ka6 69.Qb8 Ka5 70.Ra7 1–0. Bonetti,Shane – G2K (2535), ICC, 2002.

8.d3= dc4 9.dc4 a6 10.0–0 =.

8.d3 dc4 9.dc4 Bb4 10.Nbd2 Ne4 11.Qc2 Nd2 12.Nd2 Qd2 (12...a6!?=) 13.Qd2+/– Bd2 14.Kd2 Rd8 15.Ke1 f6 16.f4 Bd7 17.a4 Be8 (17...a6!?+=) 18.a5+/– Nc8 19.Rf1 (19.a6 ba6 20.Ra6 Rb8+/–) 19...c5 20.Rf3 (20.a6 b6+/–) 20...Bg6 21.Rg3 Nd6 22.h4 Ne4 23.Rh3 Rd2 24.Bc1 Rc2 25.h5 (25.g4 Nd6=) 25...Bf5=+ 26.Rh4 Ng3 27.Bf3 Rd8 (27...Rc4?! 28.a6=) 28.b6 Be4 29.Rh3?? (29.Bg4 f5 30.Bd1 Rg2 31.Bg4 fg4 32.Rh2 Rh2 33.Ra2 Bf3 34.Rh2 Rd1 35.Kf2 Ne4) 29…Bf3 (30.Bd2 Rdd2 31.Rg3 Re2 32.Kf1 Rf2 (32...Bg2?! 33.Rg2 Rg2 34.ba7 Rcf2 35.Ke1 Re2 36.Kf1 Rgf2 37.Kg1 Rg2 38.Kf1 Rgf2 39.Kg1 Rg2 40.Kf1=) 33.Kg1 Rg2 34.Rg2 Rg2 (34...Bg2 35.ba7 b6 36.ab6+–) 35.Kf1 ab6 36.ab6 Rh2 37.Ra8 Kf7–+) 0–1. Frenzel,Lothar – Dittwald,W, CiF, 1988.

8.d3= Qe7 9.Nbd2 (9.0–0 dc4 10.dc4 e5=) 9...e5 (9...Rd8 10.0–0=) 10.cd5 (10.c5 Bc5 11.Be5 Ng4=) 10...Nfd5 (10...Nbd5 11.0–0=) 11.a4 (11.0–0 Bg4=) 11...Bg4 (11...Rd8 12.0–0=) 12.a5 (12.0–0 c5=) 12...Nd7 13.0–0 Bb4 (13...a6 14.h3 Be6 15.ba6 ba6 16.Rb1=) 14.Qb3 (14.Rc1 Ba5 15.Nc4 Bb4=) 14...Ne3 15.fe3 Bd2 16.Nd2 Be2 17.Rf2 Nc5 (17...Bg4 18.Ba3 Qg5 19.Bf8 Rf8 20.Re1+/–) 18.Qc3 Bd3 19.Ba3 Rfd8 20.Bc5 (< 20.Qc5 Qc5 21.Bc5 b6=+) 20...Qe8 21.Nf3 f6 (21...Rd5 22.Rb2+/–) 22.Rb2 (22.Qb3 Kh8 23.Rb2+/–) 22...Qf7 (22...Kh8!?+/–) 23.Rd1+– e4 (23...Be4 24.Rd8 Rd8 25.Ba7+–) 24.Ne1 b6 (24...Qh5 25.Rdd2+– (25.Nd3 Qd1 26.Ne1 Rd5=+; 25.Rd3?! ed3 26.Bd4 Qd1+=)) 25.Nd3 (25.Rd3?! ed3 (25...Rd3? 26.Nd3 ed3 27.Bd4+–) 26.Bd4 ba5 27.Nd3 a6+=) 25...ed3 (25...bc5 26.Nf2 Rd1 27.Nd1+–) 26.ab6 cb6 27.Bd4 Rac8 (27...Rd6 28.Qd3 Rad8 29.Rbd2+–) 28.Qd3 Rc4 (28...Qe6 29.Rbd2+–) 29.Qb1 Rdc8 (29...Rcc8 30.Rc2+–) 30.Rbd2 Re8 31.Rc2 Ra4 (31...Rc2 32.Qc2 Qe6 33.Rc1+–) 32.Rdc1 Qe7 (32...Ra5+–) 33.Qb3 Rc4 34.Qc4 (34...Kf8 35.Qa2+–) 1–0. pierre (2195) – teoretic (2020), internet, 2007.

8.cd5 Nbd5 9.0–0 Bd7 10.Nc3 Nc3 11.Bc3 c6 12.a4 Rc8 13.Qb3 cb5 (13...Nd5!?=) 14.ab5+= Nd5 (14...Bc5!?+=) 15.Ra7+/– Nc3 16.dc3 Qb6 17.Raa1 Rc5 18.c4 Rf5 (18...e5 19.Nd2+/–) 19.Rfd1 Rd8 20.Qb1 Rf6 21.Ng5 Rh6 22.Nf3 Qc7 (22...Rf6 23.Qe4 Qc7+/–) 23.h3+/– Qb6 24.Qd3 Be7 25.Qd7 Rd7 26.Rd7 Bf8 27.Ra8 f5 (27...Qc5 28.Rdd8 g6+–) 28.Rdd8 Rf6 29.Ne5 Qc7 30.Nd7 (30.Nd7 Kf7 31.Nf8+–) 1–0. mr5reasons1 (1685) – philip1234 (1685), gameknot.com, 2012.

7.Be2 dc4

8.Na3 Ba3 9.Ba3 Re8 10.Bc4 Nb6 11.Be2 Bd7 12.Ne5 Nbd5 13.0–0 c6 14.bc6 Bc6 15.Nc6 bc6 16.Qc1 Qd7 17.Bb2 e5 18.Rb1 e4 19.Qc4 Rab8 20.Rfc1 Rec8 21.Bd4 Rb1 22.Rb1 a5 23.Qa6 Qd8 24.Bc4 Nb4 25.Bf6 gf6 26.Qa7 Qc7 27.Qc7 Rc7 28.Kf1 Rd7 29.Ke2 Rd8 30.g4 c5 31.a4 Rd6 32.h4 Kg7 33.Rc1 Kg6 34.h5 Kg7 35.Bb3 Rd3 36.Bc2 Nc2 37.Rc2 Rd5 38.f4 ef3 39.Kf3 f5 40.g5 f6 41.Kf4 fg5 42.Kg5 h6 43.Kf4 Kf6 44.d3 Ke7 45.Rc4 Ke6 46.Rc3 Kd6 47.Rb3 Kc6 48.Kf3 Rd7 49.Ke2 Rg7 50.Rb5 Rg5 51.Ra5 Rh5 52.Ra6 Kd5 53.Kf3 Ke5 54.Ra8 Rh3 55.Kg2 Re3 56.Re8 Kf4 57.Re3 Ke3 58.a5 Ke2 59.Kg3 Ke3 60.Kg2 Ke2 61.Kg3 c4 62.dc4 Ke3 63.a6 f4 64.Kg2 Ke2 65.a7 f3 66.Kg3 f2 67.a8Q f1R 68.Qg2 Ke1 69.Qf1 Kf1 70.c5 h5 71.c6 h4 72.Kh4 Ke2 73.c7 Kd3 74.Kg5 Kc4 75.c8Q Kb4 76.Qc6 Kb3 77.Qc5 Kb2 78.Qb4 Kc2 79.Kf4 Kc1 80.Ke3 Kc2 81.Ke2 Kc1 82.Kd3 Kd1 83.Qd2 1–0. Bonetti,Shane – G2K (2535), ICC, 2002.

8.Na3 a6=+ 9.Nc4 ab5 10.Nd6 cd6 11.Bb5 e5 12.0–0 Nb6 =.

8.Na3 e5 9.0–0 e4 10.Nd4 Ne5 11.Nc4 Nc4 12.Bc4 Bh2 –/+.

8.Na3 e5 9.Nc4 e4 10.Nd4 Bc5 11.0–0 a6 12.ba6 Ra6 =.

8.Na3 Be7 9.0–0 a6 10.ba6 c3 11.Bc3 b6 12.Nb5 Ba6 =.

8.Na3 Be7 9.Nc4 Re8 10.d4 a6 11.Qa4 b6 12.0–0 Bb7 =.

8.a4 e5 9.Na3 e4 10.Nd4 Ba3 11.Ba3 Re8 12.Bc4=+ Ne5 =+.

8.a4 e5 9.Na3 e4 10.Nd4 c3 11.dc3 Ne5 12.Nc4 Nc4 =+.

8.a4 e5 9.Na3 e4 10.Nd4 Ne5 11.Nc4 Nc4 12.Bc4 Ng4 (12...a6=+) 13.Ne6? (better is 13.Bd5 Re8 14.Qc2=+) 13...Be6–+ (< 13...fe6 14.Qg4 Rf7 15.Qe4+/–) 14.Be6 Nf2 (14...Ne5 15.Be5 Be5 16.Bc4 Ba1 17.Qa1–+) 15.Kf2 fe6 16.Kg1 Qg5 (16...Qh4 17.Qe1 Qg5 18.Qe2–+) 17.h4 Qg6 (17...Qd5 18.h5–+) 18.Qe2 (18.h5 Qg5–/+) 18...Rf3 (18...h5–+) 19.Rf1 (better is 19.h5!? Qg4 20.h6–/+) 19...Raf8–+ 20.Rf3?? (better is 20.Rc1–+) 20…ef3 (21.d3 fe2 22.Be5 e1Q 23.Kh2 Be5 24.g3 Qeg3#) 0–1. Justesen,Aage – Bergljung,Andreas, corr, 1978.

8.Bc4 a6 9.ba6 ba6 10.0–0 (10.d4 Rb8 11.Qc2 Nb6=+) 10...Bb7 (10...Nb6 11.d3=+) 11.d3 Rb8 12.Bc3 (12.Nbd2 Bf3 13.Bf6 Bd1 14.Bd8 Bc2=+) 12...Nb6 13.Nbd2 Nfd5 14.Be5 Nc4 15.Nc4 Be5 (15...f6 16.Bd6 cd6 17.Nd4=) 16.Nfe5= f6 17.Nf3 Nc3 (17...e5 18.d4=) 18.Qd2 (18.Qc2 Nb5=) 18...Bf3 (18...Nb5 19.Rfb1=+) 19.gf3 (19.Qc3 Be2–/+) 19...Nd5=+ 20.d4 (20.Rab1 Qe8=+) 20...Qe8 21.e4 (21.Qa5 Qg6 22.Kh1 Qh5=+) 21...Ne7 (21...Rb4 22.Rfc1 Qa4 23.Qc2=+) 22.Rfd1 Qh5 (22...Qg6 23.Kh1=+) 23.Qe3 (23.Qf4 Qg6 24.Qg3 Rfd8=) 23...Ng6 (23...Qg6 24.Kh1 f5 25.Ne5=) 24.Rac1= e5 25.d5 (25.a3 Nf4 26.Kh1 Qg5=+) 25...f5 (25...Nf4 26.Kh1=+) 26.Kh1 fe4 27.Nd2 ef3 28.Rc7 Rb4 29.Rg1 Rg4 30.d6 Rh4 31.Qb3 Kh8 32.Nf1 Qg4?? 33.Rg4+– (33...Rg4 34.Ne3+–) 1–0. Bonetti,Shane – Hemzo,Miguel Angelo, Orang–Utan Invitational, 2002.

8.Bc4 Qe7 9.d3 e5 10.Nbd2 Nb6 11.Bb3 Be6 12.a4 Bb3 13.Qb3 (13...Rac8 14.a5=). Reg_UK – playwaycool, ChessWorld.net, 2006.

8.Bc4 Ng4 9.h3 (9.d4 a6=) 9...Ngf6 (9...Nh6 10.0–0=) 10.0–0 Nb6 11.Bb3 Bd7 12.a4 Nbd5 (12...a6 13.Nc3=+) 13.Re1 c6 14.e4 Nf4 15.e5 Nd3 16.Re3 (better is 16.ef6!? Nb2 17.Qc2 Qf6 18.Nc3 Na4 19.Ba4 (19.Na4?! cb5 20.Nc5 Bc5 21.Qc5 Rfc8+=) 19...cb5 20.Bb5+–) 16...Nb2=+ 17.Qc2 Nd5 (17...Na4 18.Ba4 Nd5 19.bc6 Ne3 20.de3 Bc6 21.Bc6 bc6 22.ed6 Qd6=) 18.Re4 (better is 18.ed6!? Ne3 19.de3 cb5 20.Qb2 ba4 21.Bc2=) 18...Na4 19.Rea4 (19.Raa4 cb5; 19.Ba4 cb5; 19.Rea4 Bb8) 19...Bb8 (< 19...cb5 20.Rh4 Qh4 21.Nh4 Be5 22.Nc3+=) 20.Rh4 h6 21.Qe4 (21.Bd5 cd5 22.Nc3 Qe7–/+) 21...Ne7 22.Bc2 Ng6 23.Rg4 f5 24.ef6= Rf6?? 25.Rg6+– Rf4 26.Qe3 Bd6 27.g3 Rf3 28.Qf3 Qb6 29.Qe3 Bc5 30.Qh6 Bf2 31.Kg2 Bd4 32.Ra3 cb5 33.Rf3 Bc6 34.Rg7! (34...Bg7 35.Qh7) 1–0. pumpkin (2405) – zzvotra (2290), net–chess.com, 2004.

8.Na3 Nb6

9.Nc4 Nc4

10.Bc4 a6 11.ba6 ba6 12.Rb1 Rb8 13.0–0 Nd5 14.Qc2 Nb6 15.Bd3 +=.

10.Bc4 a6 11.ba6 b6 12.Qe2 Nd7 13.0–0 Nc5 14.d4 Na6 15.e4 =.

10.Bc4 b6 11.0–0 Bb7 12.Ne5 Be5 13.Be5 c5 14.d4 cd4 15.Qd4 Qd4 16.Bd4 Rac8 17.Be2 Bd5 18.Rfc1 Nd7 19.Kf1 h6 20.a4 e5 21.Bb2 f5 22.Rd1 Be6 23.Rac1 e4 24.Rc6 Nc5 25.Rdd6 Bf7 26.Bd4 Bb3 27.g4 Ba4?? (better is 27...Rc6 28.bc6 fg4 29.Bg4 h5 30.Bh5 Ba4 31.Bc5 Rc8+–) 28.Bc4+– Kh7 29.Rg6 (29.Rg6 Ne6 30.Rge6 (30.Be6?! Kg6 31.gf5 Kh7 32.Rc8 Rc8 33.Bc8 Bb5 34.Ke1 Bc6+–) 30...Rc6 31.bc6+–) 1–0. Pcmvr – Steinzell, playchess.de, 2005.

10.Bc4 c6 11.bc6 bc6 12.Rb1 Rb8 13.Qc2 Bb7 14.Ng5 g6 15.Bf6 +=.

10.Bc4 Re8 11.0–0 Nd5 12.Qc2 a6 +=.

10.Bc4 Nd5

11.0–0= a6 12.a4 Nb6 13.Be2 ab5 14.ab5 Bd7 15.Qc2 +=.

11.0–0= Nb6 12.Be2 a6 13.ba6 ba6 14.Qc2 Rb8 15.Rab1 =.

11.Rc1 a6 12.ba6 ba6 13.Qc2 Nb6 14.Bd3 f5 15.Be2 =.

11.Rc1 Nb6 12.Be2 Bd7 13.Ne5 a6 14.Nd7 Qd7 15.ba6 =.

11.Rc1 Bd7 12.Ne5 Bc8 13.Qb3 Nb6 14.0–0 a6 15.ba6 =.

11.Rc1 Qe7 12.e4 Nf4 13.0–0 Rd8 14.d4 Qe8 15.Qb3 +=.

11.Rc1 Re8 12.0–0 Nb6 13.Be2 e5 14.e4 Be6 15.Be5 =.

10.Bc4 Bd7

11.0–0 c6 12.a4 Nd5 13.Ne5 Be5 14.Be5+= Nb6 15.Qg4+/– g6 16.Be2 f6 17.Bb2 Kf7 18.Qh4 Kg7 19.e4 cb5 20.ab5 Qe8 21.Ra5 Nc8 22.Rc1 Rf7 23.e5+– f5 24.Rc7 b6 25.Ra1 Kg8 26.d4 Qe7 27.Qg3 Qd8 28.Rac1 Be8 29.Rf7 Kf7 30.d5! Ne7 31.de6 Kg8 32.Rd1 Qc7 33.Qd3 Rc8 34.Ba3 Kg7 35.Bd6 (35...Qd8 36.Qa3+–) 1–0. Engel,Bernd – Schultchen,Reinhard, corr DDR–ch M659, 1983.

11.a4 c6 12.0–0 Qe7 13.Be5 Rfc8 14.Qe2 Rc7 15.d4 +=.

11.a4 Nd5 12.0–0 a6 13.ba6 ba6 14.Qc2 Nb4 15.Qc3 +=.

11.a4 Re8 12.Qb3 c6 13.0–0 Qe7 14.Be5 cb5 15.ab5 +=.

11.a4 Ng4 12.h3 Nf6 13.0–0 Nd5 14.d4 c6 15.Ba3 +=.

11.Ne5 a6 12.a4 Bc8 13.ba6 Be5 14.Be5 Nd7 15.ab7 +=.

11.Ne5 c6 12.Nd7 Nd7 13.bc6 bc6 14.Qc2 Rb8 15.0–0 =.

11.Ne5 Rc8 12.Nd7 Nd7 13.Qg4 Ne5 14.Be5 Be5 15.Rb1 =.

11.Ne5 Be8 12.a4 c6 13.0–0 Rc8 14.d4 Nd5 15.Qg4 =.

8.Na3 c3

9.dc3 Qe7 10.Nc4 Bc5 11.0–0 e5 12.Qc2 h6 =.

9.dc3 Nb6

10.Nd2 Bd7 11.0–0 Qe7 12.Nac4 Bb5–/+ 13.Nd6 Be2 14.Qe2 cd6 15.Rac1 Na4 16.Ba3 Qc7 17.c4 Rac8 18.Nb3 Rfd8 19.Rfd1 Ne4 20.Qe1 Nec5 21.Qe2 ½–½. Bonetti,Shane – Cuevas,Jesus, b2–b4.com, 2003.

10.0–0 Qe7

11.Qb3 e5

12.Nc2 Rd8 13.Ba3 Bf5 14.Bd6 cd6 15.Rfc1 d5 16.a4 Rac8 =+.

12.Nc2 Rd8 13.c4 Ne4 14.Ba3 Ba3 15.Qa3 Qa3 16.Na3 Nc3 =+.

12.Nc2 Rd8 13.Rad1 Bf5 14.c4 Nbd7 15.Nh4 Be6 16.Nf3 a6 –/+.

12.Nc2 e4 13.Nfd4 Bg4 14.Ba3 Be2 15.Ne2 Ba3 16.Na3 Rfd8 =+.

12.Nc2 Ne4 13.c4 Bg4 14.Rfd1 Nc5 15.Qc3 Nba4 16.Qa3 e4 –+.

12.Nc2 Bg4 13.Ba3 Rfc8 14.Rfd1 Ba3 15.Na3 c5 16.h3 Bh5 =+.

12.Nc2 Bg4 13.h3 Bf3 14.Bf3 e4 15.Be2 Qe5 16.g3 Nbd7 =+.

12.c4 Rd8 13.Rad1 Bg4 14.h3 Bh5 15.Nc2 e4 16.Nfd4 Be2 =+.

12.c4 Rd8 13.Rfd1 e4 14.Nd4 Qe5 15.f4 ef3 16.Nf3 Qe7 =+.

12.c4 e4 13.Nd4 Ng4 14.h3 Nf6 15.Rad1 Qe5 16.f4 ef3 =+.

12.c4 Ne4 13.Nb1 Bf5 14.Ba3 Rfd8 15.Bd6 Rd6 16.Qa3 Nd7 =+.

12.c4 Ne4 13.Qc2 Nc5 14.Nb1 e4 15.Nfd2 Bf5 16.Bd4 Rad8 =+.

12.c4 Re8 13.Nc2 Ne4 14.Ba3 Bg4 15.Rad1 Ba3 16.Na3 Rad8 =+.

12.c4 Re8 13.Rad1 e4 14.Nd4 Qe5 15.g3 Bh3 16.Rfe1 Bg4 =+.

12.c4 Re8 13.Rfd1 Bf5 14.Nh4 Be4 15.f3 Nfd7 16.fe4 Qh4 =+.

12.c4 Bg4=+ 13.Nc2 Ne4 14.Rfd1 Nc5 15.Qc3 Nba4 16.Qa3 e4 –+.

12.c4 Bg4=+ 13.Rad1 Rfd8 14.h3 Bh5 15.Nc2 e4 16.Nfd4 Be2 =+.

12.c4 Bg4=+ 13.Rfd1 e4 14.Nd4 Be2 15.Ne2 Rfd8 16.Nd4 Qe5 =+.

12.Rad1 e4 13.Nd4 Qe5 14.g3 Bg4 15.c4 Be2 16.Ne2 Qh5 –/+.

12.Rfd1 Rd8 13.c4 Nbd7 14.Rab1 e4 15.Nd4 Qe5 16.g3 Nc5 –/+.

12.Rfd1 e4 13.Nd2 Rd8 14.Nac4 Be6 15.Qc2 Nc4 16.Nc4 Bc4 =+.

12.Rfd1 e4 13.Nd4 Qe5 14.g3 Bg4 15.Bg4 Ng4 16.Qc2 Qh5 –/+.

12.Rfd1 Bg4 13.c4 e4 14.Nd4 Be2 15.Ne2 Rfd8 16.Nf4 Nfd7 =+.

12.Nc2 Bf5

13.Ba3 Rac8 14.Bd6 cd6 15.Nb4 Rc7 16.Qa3 Ra8 =+.

13.c4 Ne4 14.Ba3 Rfd8 15.Rfd1 Qe6 16.Bd6 Rd6 =+.

13.Rad1 Rfd8 14.c4 Nfd7 15.Na1 a6 16.ba6 Ra6 –/+.

13.Rfd1 Nfd7 14.Nb4 Nc5 15.Qa3 a6 16.ba6 Na6 –/+.

13.Rae1 c6 14.bc6 bc6 15.Rd1 c5 16.c4 Rfb8 =+.

12.Rad1 Bf5

13.Nc2 Rfd8 14.c4 Nfd7 15.Na1 a6 16.ba6 Ra6 –/+.

13.c4 Ne4 14.Nb1 Nc5 15.Qc3 Nba4 16.Qc1 a6 –/+.

13.Nc4 Be6 14.Nfd2 a6 15.Bc1 ab5 16.Qb5 Na4 –+.

13.Rfe1 Ne4 14.Bc1 Nc5 15.Qb2 e4 16.Nd4 Qe5 =+.

13.Nh4 Be6 14.c4 Ne4 15.Nf3 Nc5 16.Qc2 Nca4 –/+.

12.Rfd1 Bf5

13.Rac1 Ne4 14.Nc4 Nc5 15.Qb4 Nc4 16.Qc4 a6 –/+.

13.Nc2 Nfd7 14.Nb4 Nc5 15.Qa3 a6 16.ba6 Na6 –/+.

13.c4 Ne4 14.Nb1 Nc5 15.Qc3 Nba4 16.Qc1 e4 –/+.

13.Nc4 Nc4 14.Qc4 e4 15.Nd4 Qe5 16.g3 Bg4 =+.

13.Nh4 Be6 14.c4 Ne4 15.Nf3 Nc5 16.Qc2 Nca4 –/+.

12.Nd2 a6

13.ba6 ba6 14.Nac4=+ Nc4 15.Nc4 Bf5 16.Rad1 Rfb8 =+.

13.c4 Rd8 14.Rfd1 Bf5 15.ba6 ba6 16.Nf3 Ne4 –/+.

13.Rad1 Be6 14.c4 Nbd7 15.Bc1 e4 16.Bb2 Bf5 –/+.

13.Rfd1 Rd8 14.ba6 Be6 15.c4 ba6 16.Nf3 Rab8 –/+.

13.e4 Be6 14.c4 Rfd8 15.ba6 ba6 16.Qg3 Rab8 –/+.

12.Nd2 Rd8

13.c4 a6 14.Rfd1 Bf5 15.h3 Nbd7 16.Qc3 Nc5 –/+.

13.Nac4 Be6 14.Qc2 Nc4 15.Nc4 Bc4 16.Bc4 e4 =+.

13.Rad1 Be6 14.c4 Nbd7 15.e4 a6 16.Bc1 Bb4 –/+.

13.Rfd1 a6 14.c4 Bf5 15.h3 Nbd7 16.Qc3 Nc5 –/+.

13.e4 Bc5 14.Rad1 a6 15.c4 ab5 16.Nb5 Na4 =+.

12.Nd2 Be6

13.c4 a5 14.Rfd1 a4 15.Qc3 Rfd8 16.Qc1 Rd7 =+.

13.c4 a6 14.Rfd1 Rfd8 15.ba6 ba6 16.Nab1 Bf5 17.Ba3 Ba3 18.Qa3 Qa3 19.Na3 Na4 20.Nb3 Nc3 21.Rd8 Rd8 22.Bf1 Kf8 23.c5 Nfd5 24.Nc4 f6 25.a3 Bc2 26.Nca5= Rb8 27.Bc4 Ke8 28.g3 ½–½. Bonetti,Shane – Vetter,Udo, TT–11 ETC, 2004.

13.c4 Nbd7 14.Nf3 Rfd8 15.Rfd1 Bf5 16.Qc3 Ne4 =+.

13.c4 Rfd8 14.Rfd1 a6 15.Bf3 Rab8 16.Nc2 ab5 =+.

13.c4 Bf5 14.Nc2 Nbd7 15.Ba3 Nc5 16.Bc5 Bc5 =+.

8.Bc4 Nb6

9.Bb3 Bd7 10.Nc3 a6 11.a4 Nbd5 12.Qe2 Nc3 13.Bc3 Ne4 (13...ab5 14.ab5 Ra1 15.Ba1=) 14.Bb2 (14.0–0 Nc3 15.dc3 Qf6=) 14...ab5 (14...Qe8 15.Bc4=+) 15.ab5 Ra1 16.Ba1 Qe8 17.Bc4 f6 18.0–0 Qh5 19.h3 Be7 (19...Ra8 20.Bd4=) 20.Qd3 (20.Rc1 Ra8=) 20...Nd6 21.Rb1 Kh8 (< 21...Nc4 22.Qd7 Qf7 23.Qc7+=) 22.Nd4 e5 (22...Nc4 23.Qc4 e5 24.Qc7=+) 23.Be6 Be8 (< 23...ed4 24.Bd7 de3 25.Qe3+=) 24.Bg4 Qg6 (24...Qh4 25.Nf5 Bg6 26.Qc2= (26.Nh4 Bd3 27.Rb3 f5 28.Be5 fg4 29.Bd6 cd6 30.Rd3 Bh4–/+)) 25.Nf5 (25.Bf5!? Qg5 26.f4=+) 25...h5=+ 26.e4 hg4 27.Ne7 Qe4 28.Qe4 Ne4 29.d3 (29.b6 cb6 30.d3 Nc5–/+) 29...Nd6–/+ 30.hg4 Rf7 31.Nf5 Nb5 32.d4 g6 33.Nh4? (better is 33.de5!? gf5 34.e6–/+) 33...ed4–+ 34.Ng6 Kg7 35.Nf4 Re7 36.Nd5 (36.g5 fg5 37.Nd5 Rf7–+) 36...Re5 37.Nc7 Nc7 38.Rb7 (38.Bd4 Rb5 39.Rb5 Nb5–+) 38...Re1 39.Kh2 Ra1 (40.Rc7 Kg6–+) 0–1. pumpkin (2495) – gmartin (2000), net–chess.com, 2004.

9.Bd3 a6 10.a4 e5 11.Be5 Be5 12.Ne5 Qd5 13.f4 Qg2 –/+.

9.Bd3 a6 10.ba6 ba6 11.Nc3 Bb7 12.Rb1 c5 13.Na4 Bf3 =+.

9.Bd3 a6 10.Nc3 ab5 11.Nb5 e5 12.Qc2 Re8 13.Nd6 Qd6 =.

9.Bd3 a6 10.Bf6 Qf6 11.Nc3 ab5 12.Nb5 e5 13.Be4 Qe7 =+.

9.Bd3 Re8 10.Qc2 Nbd5 11.Ng5 h6 12.Ne4 e5 13.Nf6 Nf6 =+.

9.Bd3 Re8 10.Nc3 e5 11.Qc2 Bg4 12.Ng5 h6 13.Nge4 Nbd5 =.

9.Bd3 Re8 10.Bf6 Qf6 11.Nc3 e5 12.Qc2 Qh6 13.a4 Nd7 =.

9.Be2 a6 10.Nc3 Nbd5 11.Qc2 Nc3 12.Bc3 ab5 13.Bb5 Nd5 =+.

9.Be2 Nbd5 10.0–0 a6 11.d3 Qe8 12.ba6 Ra6 13.Nbd2 Ng4 =.

9.Be2 Nbd5 10.0–0 Bd7 11.d3 Bb5 12.e4 Nf4 13.e5 g5? (better is 13...Be7 14.ef6 Bf6 15.Bf6 Qf6=) 14.ed6+– (14.ef6?! Ne2 15.Qe2 Bd3+=) 14...cd6 15.Ng5 h6 16.Nf3 e5 17.Nc3 Bc6 18.Bc1 Ne2 19.Qe2 Kg7 20.d4 e4 21.Nh4 Qa5 (21...Kh7 22.Qd2 Ng8 23.Nf5+–) 22.d5 Qc3 (22...Rad8 23.dc6 Qc3 24.Bb2+–) 23.Bb2 Qd3 (23...Bb5 24.Qb5 Qd2 25.Nf5 Kg6 26.Bf6 Kf6 27.Nd6 Qf4 28.Nb7 Kg7+–) 24.Qg4 Kh7 25.Qf5 Kg8 26.Qf6 (26...Qd4 27.Bd4 Bd5 28.Qh8) 1–0. miehnekort – akelaanily, Yahoo, 2005.

9.Bd3 Rb8

10.a4 Qe7 11.Nc3 a5 12.Qc2 h6 13.0–0 e5 =.

10.Qc1 a6 11.e4 Nh5 12.Qc2 Nf4 13.e5 Nd3 =+.

10.Qc2 Qe7 11.Ng5 h6 12.Nh7 Nh7 13.Bh7 Kh8 14.Be4 =.

10.Qe2 Qe7 11.Ne5 Na4 12.Bd4 Bc5 13.Bc3 Rd8 =+.

10.e4 e5 11.Qc2 Qe8 12.Be2 Nh5 13.Ne5 Nf4 =+.

9.Bd3 Bd7

10.0–0 c5 11.Bf6 Qf6 12.Nc3 Qh6 13.a4 Rfd8 =.

10.a4 a6 11.ba6 ba6 12.Bf6 Qf6 13.Nc3 Nd5 =+.

10.Qc2 Nbd5 11.e4 Nb4 12.Qb3 e5 13.Bc4 a6 =+.

10.Nc3 Rc8 11.a4 c6 12.0–0 Nbd5 13.Nd5 Nd5 =.

10.e4 Nh5 11.Qc2 Nf4 12.e5 Nd3 13.Qd3 Be7 =+.

9.Be2 Bd7

10.0–0 a6 11.ba6 ba6 12.Nc3 e5 13.d4 e4 =.

10.0–0 c5 11.Be5 Be5 12.Ne5 Qc7 13.f4 Rfd8 =.

10.0–0 c6 11.a4 cb5 12.ab5 a6 13.ba6 ba6 14.Ba6 Ne4 15.Nc3 Nc5 16.Bb5 Ra1 17.Ba1 f5 18.Qb1 Bb5 19.Nb5 Be7 20.Qb2 Bf6 21.Qc2 Be7 22.Bd4 Qd5 23.Bc5 Bc5 24.Nc7 Qd6 25.Ne6! Qe6 26.Qc5 Rc8 27.Qe5 Qe5 28.Ne5 Rc2 29.d3 h5 30.h3 Nd5 31.Ra1 Kh7 32.Ra5 Nc3 33.Nf3 g6 34.Ra7 Kh6 35.h4 Nb5 36.Rb7 Nd6 37.Re7 Nc8 38.Re6 Rc1 39.Kh2 Rc5 40.Ne5 Kh7 41.Ng6 Kg7 42.Nf4 Kf7 43.Rh6 Rc2 44.Rh5 Nd6 45.Kg3 (45...Kg7 46.Rg5 Kf7 47.h5+–) 1–0. marekt – Austin, 1.b4 internet, 2005.

10.0–0 c6 11.a4 cb5 12.ab5 Qe7 13.d4 Rfc8 (13...Nbd5 14.Ne5=) 14.Ne5 (14.Ba3 Nfd5=) 14...Nbd5 (14...Nfd5 15.Ba3=) 15.Bd3 (15.Ba3 a6=) 15...Nb4 16.Ba3 Nfd5 (16...Qe8 17.Bb4 Bb4 18.Qb3=) 17.Qh5 g6 (17...Nf6 18.Qe2=) 18.Qe2 (18.Qf3 Be5 19.de5 Qe8=) 18...f6 (18...Nd3 19.Qd3 Nb4 20.Bb4 Bb4 21.Rd1=) 19.Nd7 (19.Nc4 A) 19...Nd3? 20.Nd6 (20.Bd6?! Qd8 21.Nba3 Rc4 22.Nc4 Bb5 23.Qd3 Qd6+/–) 20...N3b4 21.Nc8 Rc8 22.e4+–; B) 19...Bc7 20.Ncd2 Qd8 21.Bb4 Nb4+=) 19...Qd7 20.Bb4 Nb4 21.Nd2 f5 (21...Nd3 22.Qd3 Qc7 23.Qe4=) 22.Bc4+= Nd5 23.e4 Nf4 24.Qe3 fe4 25.Ne4 Qe7 26.Qb3+/– Kg7 27.g3 Nd5 28.Bd5 ed5 29.Qd5 Rd8 30.Ng5+– Rd7 31.Rfe1 Qf6 32.Re2 Kh8 33.f4 Qg7 34.Ne6 Qf6 35.Ra6! Qf5 36.Qf5 gf5 37.Ra5 Bb4 38.Ra4 Bd6 39.b6 a6 40.Ra5 Rc8 41.Rf5 Rc6 42.Rb2 Ba3 43.d5 Rc8 44.Rb3 Bd6 45.Kf2 a5 46.Rb2 a4 47.Ra2 a3 48.Ke3 Rc3 49.Ke4 Rc1 50.g4 Re1 51.Kd3 Be7 52.Kc4 Rc1 53.Kb5 Rb1 54.Ka5 Rb2 55.Ra1 Rd2 56.Ka4 R2d5+/– 57.Rd5 Rd5 58.f5 Re5 59.Rf1 Re4 60.Kb5 h6 61.Rf2 Rb4+= 62.Ka5 Rb2 63.Rf1 a2 64.Ra1 Bf6 65.Ka4 Rg2 66.Rc1 Rg4 67.Kb5 a1Q 68.Ra1 Ba1 69.Kc5 Bf6 70.Kd6 Rc4 71.Nc5 Bd8 72.Ne6 Rc6 73.Ke5 Bg5 74.Kd5 Rb6 75.Nd4 Rb2 76.h3 0–1. orangotango (2435) – Caissus 1 (2545), 2003.

10.0–0 Rc8 11.a4 c5 12.Qc2 Nbd5 13.a5 c4 =.

10.0–0 Qe7 11.d4 Rac8 12.a4 c6 13.Nbd2 Rc7 =.

10.a4 a6 11.ba6 ba6 12.0–0 Nbd5 13.Be5 Bc6 =.

8.Bc4 e5

9.Nc3 e4 10.Nd4 Ne5 11.Be2 Re8 12.Qc2 Bg4 13.f3 ef3 14.gf3 Bh5 15.0–0–0 (15.f4 Ng6+=) 15...Bg6 16.Nf5 (16.e4 c5 17.bc6 Nc6 18.Nc6 bc6+=) 16...a6 17.ba6 ba6 18.Rdg1 (18.f4 Nc6 19.a3 Bf4–/+) 18...Qd7 19.e4 Nc6 (19...Bf5!? 20.ef5 Bc5–/+) 20.Nd6+= Qd6 21.Qa4 Attacks the isolani on a6 21...Nd4 22.Bd1 c5 23.Rg5 Qf4 24.Rc5 (24.Rhg1 Nf3 25.Bf3 Qf3–+) 24...Nf3–+ 25.Bf3 Qf3 26.Rd1 Ne4 27.Ne4 Re4 28.Qc6 (28.Qb3 Qe2 29.Qc3 f6–+) 28...Rae8 (28...Rb8 29.h4–+) 29.Re5 R8e5 30.Be5 h6 31.Bb2?? (31.Bc3 Qd3 32.Kb2–+) 31...Qd3 32.Bc3 (32.Qg6 fg6 33.a3–+) 32...Rb4!! (32...Rb4 33.Qa8 Kh7 34.Qh8 Kh8 35.Bg7 Kg7 36.Rg1 Rb1) 0–1. Fabisch,Christian (2150) – Wegerer,Fred (2190), Graz AUT, Steirische Landesliga, 2013.

9.d3 Qe7 10.Nbd2 Nc5 (10...Nb6 11.0–0=+) 11.0–0= Bg4 12.Re1 Rfe8 13.Qc2 (13.d4 Ncd7=) 13...e4 14.Bf6 Qf6 15.de4 Bf3 (15...Rad8 16.Bd5=) 16.Nf3 Re4 17.Rad1 Re7 18.Rd4 (18.Nd4 Rd8=) 18...a6 (18...Rd8 19.Red1=) 19.ba6 Na6 20.Red1 Nc5 21.Nh4 (21.Rd5 b6+=) 21...g6 (21...Ne6 22.Nf5 Nd4 23.Ne7 Qe7 24.Rd4=) 22.Rg4 Kh8 23.Nf3 Rae8 (23...Rd7 24.Rgd4=) 24.Rgd4+= Kg8 25.Bb5 Ra8 26.Bc4 (26.a4 h6=) 26...Ree8 (26...Rae8 27.Rd5+=) 27.Bd5 (27.e4 b6+=) ½–½. Kneipp,G – Menzel,J, GER–ch qgB04 corr939, 1993.

9.d4 e4 10.Nfd2 Nb6 11.Bb3 Ng4 (11...Re8 12.Nc3=+) 12.g3 (better is 12.Ne4!? Qh4 13.g3+=) 12...Re8 (12...Nf6 13.Qc2=+) 13.Nc3 Qg5 (13...Nf6 14.Qc2=+) 14.Qe2 (better is 14.Nde4 Qf5 15.f3+=) 14...Nf6=+ 15.h3 Bd7 16.a4 (16.a3 a6 17.ba6 Ra6–/+) 16...a6 (16...Bb4 17.h4 Qf5 18.0–0=+) 17.a5 Nbd5 (17...Nc8 18.Qc4 Qg6 19.Qe2=+) 18.ba6 (18.Bd5!? Nd5 19.Nce4=) 18...Nc3=+ 19.Bc3 ba6 (19...Ra6 20.Rb1=+) 20.Nc4 (20.Rc1 Bb5 21.Nc4 Nd5=+) 20...Reb8 21.Rb1 (21.Bc2 Nd5 22.Bd2 Qg6–/+) 21...Be6–/+ 22.Nd2 Nd5 23.Bd5 (23.h4 Qe7 (23...Nc3?! 24.hg5 Ne2 25.Ke2=) 24.Bd5 Rb1 25.Nb1 Bd5–/+) 23...Qd5 (23...Bd5?! 24.Rb8 Rb8 25.h4=+) 24.Rb8 (24.Qd1 Rb1 25.Qb1 Qc6–/+) 24...Rb8–+ 25.Qa6 (25.Qd1 Qc6 26.Qa1 Rb5–+) 25...Bc8 26.Qe2 Qc6 (27.0–0 Qc3 28.Ne4 Qa5 29.Nd6 cd6–+) 0–1. Despotovic,Momcilo – Podkrajsek,Janez, corr, 1979.

9.d4 e4 10.Nfd2 Nb6 11.Be2 Qe7 (11...Nbd5 12.Nc3 Bf5 13.Qb3 Nc3 14.Bc3=) 12.Nc3= Nfd5 (12...Bf5 13.g4 Bg6 14.h4=) 13.Qc2 The pressure on e4 grows (better is 13.Nde4!? Nc3 14.Nc3+/–) 13...Nc3 14.Bc3 Nd5 (14...Bf5 15.0–0+=) 15.Rc1 (15.0–0 Qh4 16.g3 Qe7=) 15...f5 (15...Bf5 16.0–0+=) 16.Qb3 (16.0–0 Qh4 17.h3 Be6=) 16...Be6+= 17.Bc4 Qf7 (17...c6 18.bc6 bc6 19.Qa4+=) 18.g3 (18.0–0 A) 18...Nc3?? 19.Be6 (19.Qc3?! a6=; 19.Rc3?! Rae8=) 19...Ne2 20.Kh1 Nc1 21.Rc1+–; B) 18...c6=) 18...Rfe8 (18...a6 19.ba6 ba6 20.0–0+=) 19.Bb2 (19.0–0 a6+=) 19...Nb6 (19...a6 20.ba6 ba6 21.a3–/+) 20.Be6 Qe6 21.Qe6 Re6 22.Nc4 Nd5 23.Kd2 (23.a3 a6 24.ba6 Ra6 25.Nd6 Red6+=) 23...a6 24.a4 Kf7 (24...Bb4 25.Kc2+=) 25.Ra1 Ree8 (25...Bb4 26.Ke2+=) 26.Rhc1 Ke6 27.Nd6 (27.Ba3 ab5 28.ab5 Ba3 29.Ra3 Ra3 30.Na3 Ra8–/+) 27...Kd6 (27...cd6 28.Rcb1–/+) 28.Ba3 (28.h3 Ke6+=) 28...Ke6–/+ 29.Bc5 (29.Rcb1 ab5 30.ab5 Ra5–/+) 29...ab5 30.ab5 b6 31.Ba3 Ra5 32.Rcb1 Rea8 33.Bb2 (33.Rb3 Nf6 34.h3 Ne8–+) 33...Ra1 (33...Nb4 34.Bc3 Ra2 35.Ra2 Ra2 36.Rb2 Rb2 37.Bb2–/+) 34.Ra1+= Ra1 35.Ba1 Nb4 36.Kc3 Nd3 37.Kc4 g5 (37...Nf2!? 38.d5 Kd6 39.Bg7 Ng4+=) 38.f3 Nf2 39.fe4 Ne4 40.d5 Kd6 41.g4? (41.Bg7!?+=) 41...fg4 (41...f4 42.ef4 gf4 43.h4–+) 42.Kd4–/+ Nd2 43.Bc3 Nf3 44.Ke4 Kc5 45.Be5 (45.Bh8 Nh2 46.Be5 Nf1–+) 45...Ne5 46.Ke5 h5 47.Kf5 g3 (47...Kb5 48.e4 (48.Kg5 Kc4 49.e4 Kd4–+) 48...Kc4 49.Kg5–+) 48.hg3 h4 49.gh4 gh4 50.Kg4 Kd5 51.Kh4 Ke4 52.Kg5 Ke3 53.Kf5 Kd4 0–1. Juknis,Paulius (2105) – Novikov,Vitalij (2330), LCL Highest Division, 2010.

9.d4 e4 10.Ne5 Nb6 11.Be2 Nfd5 =+.

9.d4 e4 10.Ne5 Ne5 11.de5 Bb4 12.Nc3 Ng4 =.

9.d4 e4 10.Ne5 Ne5 11.de5 Bg4 +–.

9.0–0 e4

10.Nd4 Ne5

11.Bb3 Nd3 12.Bc3? (12.Ba3 Ng4 13.Bd6 Qd6 14.f4+=) 12...Bh2!–+ 13.Kh2 Decoy to h2 13...Ng4 14.Kg3 h5 15.Nf3 (15.Ne6 Be6 16.Be6 Qd6 17.f4 ef3 18.Kf3 Nh2 19.Ke2 Nf1 20.Qf1 fe6 21.Qg1 Rf2 22.Qf2 Nf2 23.Kf2–+) 15…Qd6 (15...Qd6 16.Kh4 Nh6 17.Bf7 Rf7–+) 0–1. Ogdansky,DP – Loechner,F, corr, 1973.

11.Nc3?? Nc4–+ 12.Rb1 Bh2! 13.Kh2 Ng4 14.Kg1 (14.Kg3 Qd6 15.f4–+) 14...Qh4 (14...Qh4 15.Qg4 Qg4–+) 0–1. Valpa – Stratum, playchess.de, 2003.

11.Be2 a6 12.ba6 ba6 13.f4 +=.

11.Be2 Bg4 12.Nc3 Nd3 13.Bg4 Nb2 14.Qe2 Nd3 15.Ne4 Ne4 16.Qd3 f5 17.Bf5 Rf5 18.Qe4 Rh5 19.f4 Qh4 20.Nf3 Qf6 21.Qb7 Rf8 22.a4 Bc5 23.Qc7 Bb6 24.Qc4 Kh8 25.d4 Rh6 26.Rad1 Rg6 27.Ne5 Rh6 28.g3 Qf5 29.Rfe1 Rd6 30.e4 Qh5 31.Qc3 g5 32.a5 gf4 33.ab6 Rh6 34.Rd2 fg3 35.ba7 gh2 36.Kh1 Qh4 37.Qa1 (time, 1–0). Machete99 (2210) – lraj (2035), ICC, 2002.

11.Be2 Bg4 12.Nc3 Be2 13.Qe2 a6 14.a4 Qd7 15.Rac1 ab5 16.Ndb5 Nd3 17.Rc2 Be5 18.f3 c6 19.f4 Bb8 20.Na3 b5 21.ab5 Nb2 22.Ncb1 Nd3 23.Rc6 Ra5 24.Rc3 Rc8 25.Qd1 Rc3 26.dc3 Bd6 27.Nc2 Qb5 28.Nd4 Qc4 29.Qb3 Qb3 30.Nb3 Ra4 31.N1d2 Nd5 32.Ra1 Ra1 33.Na1 f5 34.Nc2 Bc5 35.Nb3 Ne3 36.Nc5 Nc2 37.Nd3 ed3 38.Kf2 Kf7 39.g3 Ke6 40.c4 Kd6 0–1. Bonetti,Shane – G2K (2535), ICC, 2002.

11.Be2 Nfg4 12.g3 f5 (12...Qg5!?–/+) 13.f4= ef3 14.Nf3 Nf3 (14...Qe8 15.Na3=) 15.Bf3 Be6 16.Bb7 (16.h3 Ne5 17.Bb7+=) 16...Rb8 (better is 16...Nh2!? 17.Rf2 Ng4+=) 17.Qf3+/– Nf6 (17...f4 18.gf4 (18.ef4?? Bc5 19.d4 Bd4 20.Bd4 Qd4 21.Kh1 Qa1–+) 18...Qh4 19.h3=) 18.Bd4 (18.Nc3 Bc4 19.Rfc1 Bd3+/–) 18...Ne4 19.Bc6 Bc4 20.Rc1 (20.Ba7 Bb5 21.Bb8 Bc6 22.Ba7+=) 20...Bb5+= 21.Ba7 Bc6 22.Rc6 (worse is 22.Bb8 Qb8 23.Qd1 Qb2 24.Qb3 Qb3 25.ab3 Nc5–+) 22...Ra8 (22...Rb4 23.a3 Ra4 24.Bd4 Bg3 25.hg3 Rd4 26.ed4 Qd4 27.Kg2 Qa1 28.Nc3–/+) 23.Bd4+= Qd7 Black terminates the opponent with strong threats 24.Rc1 (24.Rc2 c5 25.Bb2 Qe6+=) 24...c5= 25.Bc3 Qe6 26.a4 Bc7 (26...c4 27.Rf1=) 27.d3 (better is 27.Qe2!?+=) 27...Ng5+= 28.Qe2 f4 29.gf4 (29.ef4 A pinning theme 29...Qe2) 29...Bf4!–/+ 30.Re1?? (30.ef4 Exploits the pin 30...Qe2) 30...Bh2!!–+ 31.Kh2 Decoy theme: h2 (31.Qh2 A deflection 31...Nf3 A double attack) 31...Qh3 (31...Nf3 32.Qf3 Rf3 33.Be5 Rh3 34.Kg2 Qg4 35.Kf2 Qf3 36.Kg1 Rh1) 32.Kg1–+ Nf3 (32...Nf3 33.Qf3 Rf3 34.Be5 Qg4 35.Kh1 Rf2 36.Bg3 Qf3 37.Kg1 Qg2#) 0–1. Kreuzer,Uwe – Habenberger, corr, 1987.

11.Be2 Nfg4 12.h3 Nf6 =.

11.Be2 Nfg4 12.h3 Nh2 13.Kh2 Nd3 14.g3 Nb2 15.Qc2 Nd3 16.Bd3 ed3 17.Qd3 Qd7 18.Rh1 a6 (18...Qh3?? 19.Kg1+–) 19.Nc3 Re8 (19...Qh3?? 20.Kg1+–) 20.Kg2 h6 21.ba6 Ra6 22.Nf3 Qe7 23.Rab1 c6 24.a4 Ra5 25.Nd4 Rg5 26.Qe2 Qf6 27.Rhc1 c5 28.Ndb5 Bb8 29.d3 Bf5 30.e4 Be6 31.Kh2 g6 32.Kg2 Bf4 33.Qf3 Kg7 34.Rc2 Be5 (34...b6 35.h4 Rg4 36.Nd5 Bd5 37.Qg4+– (37.ed5?! h5–/+)) 35.Qf6+– Kf6 (Better is 35...Bf6 36.g4 c4 37.dc4 Be5+–) 36.Ne2 Bb8 37.f4 Rh5 38.g4 Rh4 39.Kg3 g5 40.Rc5 Rd8 (40...Rc8 41.Rc8 Bc8 42.Nbd4+–) 41.e5 Kg7 42.Nbd4 Rd7 43.Rcb5 Ba7 (43...b6 44.Rb6 Bc7+–) 44.Ne6 fe6 45.Rb7 Rh3 (45...Rf7 46.Rf7 Kf7 47.Rb7 Kg6 48.Ra7 h5 49.fg5 Kg5 50.Rg7 Kh6+–) 46.Kh3 Rf7 47.Rf7 Kf7 48.Rb7 Ke8 49.Ra7 gf4 50.Nf4 Kd8 1–0. Bonetti,Shane – Grynt (2180), ICC, 2002.

9.Nc3 Nb6

10.Be2 e4 11.Nd4 –/+.

10.Be2 Re8 11.e4 =+.

10.Be2 Bf5

11.0–0 Qe7 12.d4 e4 13.Nd2 Rfe8 14.a4 Bb4 (14...Nfd5 15.Nd5 Nd5 16.Nc4=) 15.a5 Nbd5 16.Nd5 Nd5 17.Qc2 (17.a6 c6=) 17...Qg5 18.Kh1 Qh6 19.Bc4 (19.a6 Bd6 20.h3 Nb4–/+) 19...Bd6 20.g3 Bg3 (better is 20...Nb4!? 21.Qb3 Qg6=+) 21.fg3+= Ne3 22.Bf7 (22.Qc3 Nf1 23.Nf1 Bd7=) 22...Kf7=+ 23.Qc7 Re7 (better is 23...Kg8 24.Rf2 Rab8=+) 24.Rf5?? (better is 24.Qc5 Qg5 25.Rf2=) 24...Nf5–+ 25.Qc4 Kg6 26.Nf1 Qh5 27.Kg1 Rd8 28.Ba3 Rd4 29.Qb3 Rd3 30.Qa2 Re8 31.a6 Nd4 (32.Qg2 Nf3 33.Kh1 b6–+) 0–1. Dopper,Johan – Van Embden,Alex, corr, 1991.

11.d4 e4

12.Nd2 Nbd5 13.Qb3 Nc3 14.Bc3 =.

12.Nd2 Re8

13.a4 Nfd5 14.a5 Nc3 15.Bc3 Nd5 16.Bb2 Qg5 17.g3 Ne3 (better is 17...a6!?–/+) 18.fe3+= Bg3 19.hg3 Qg3 20.Kf1 Bh3 21.Rh3 Qh3 22.Kg1 Qg3 23.Kh1 Qh3 24.Kg1 Qe3 (24...Qg3!? 25.Kh1 Qh3 26.Kg1=) 25.Kh2+= Re6 (25...Qf2 26.Kh1+=) 26.Ra3?? (better is 26.Qe1+/–). Dopper,Johan – Van Embden,Alex, vrij, 1992.

13.a4 Nfd5=+ 14.Qb3 Nc3 15.Bc3 Qg5 =.

13.a4 Nfd5 14.Nd5 Nd5 15.Qb3 Nb4 (15...Bb4 16.Qc2=+) 16.0–0 Qg5 (16...Qh4 17.g3 Qe7 18.f3=) 17.Bc4= Re7 18.g3 (18.f3 ef3 19.Nf3 Qe3 20.Qe3 Re3=) 18...a6=+ 19.ba6 ba6 20.Bc3 (20.f4 ef3 21.Nf3 Qe3 22.Qe3 Re3=) 20...Rb8–/+ 21.Rfb1 a5 (21...c5 22.dc5 Bc5 23.Ba6=) 22.Bb5 h5 (22...c5 23.dc5 Bc5 24.Nc4=+) 23.Nc4 Be6 24.Qd1 Rb5 25.Nd6 Bg4 26.Qd2 (26.Qc1 Rb6 27.h4 Qd5=+) 26...Rd5= 27.Nb7 Nd3 (27...Nc6 28.Nc5+=) 28.Na5 Rf5 (28...c5 29.f4 Qg6 30.dc5 Nf4 31.Rb8 Kh7 32.Bd4 Nh3 33.Kg2–/+) 29.Rb8 (29.Nc6 Rd7 30.f4 Qg6 31.Rb8 Kh7+=) 29...Kh7+= 30.Bb4?? (better is 30.f4 Qg6 31.Nc4+/–) 30...Rf2?? (30...Nb4 31.h4 Qf6 32.Qb4 Rf2 33.Qe1–/+) 31.Qf2?? (better is 31.Be7 Qe7 32.Nc6+–) 31...Nf2–/+ 32.Kf2 Qf5 33.Kg1 Qf3 34.Rf1?? Qe3–+ 35.Rf2 Rd7 36.Bd2 Qd4 37.Rb4 0–1. Dopper,Johan – van Embden,Alex, vrij, 1992.

13.a4 Nfd5=+ 14.Nd5 Nd5 15.Bc4 Nb4 (15...Nb6 16.0–0=+) 16.Bc3 (16.0–0 Qg5 17.Qb3 Qh5=) 16...Qg5 17.g3 (17.Bb4 Qg2 18.Rf1 Bb4 19.Bf7 Kf7 20.Qb3 Kg6 21.Qb4 Qh2–/+) 17...Nd3–/+ 18.Bd3 ed3 19.Nc4 Re6 (19...Rad8 20.0–0–/+) 20.Qd2 (20.d5 Rh6 21.Qf3 Qg6 22.Nd6 cd6–/+) 20...a6 (20...Qg4 21.h3 Qf3 22.Rg1–/+) 21.ba6 (21.Nd6 Rd6 22.f3 Qh5=+) 21...Ra6–/+ 22.f4 (22.Nd6 Rad6 (< 22...Red6 23.f3=+) 23.Rb1 Be4–/+) 22...Qe7 (22...Qh5 23.0–0–/+) 23.Kf2 (better is 23.0–0–/+) 23...Bf4! 24.Rhb1 (24.gf4 Qh4) 24...c5 (24...c6 25.Bb4 Qd8 26.Bc3–/+) 25.Rb5 (25.gf4 Qh4 26.Kf1 Bh3 27.Qg2 Bg2 28.Kg1 Rh6 29.Na5 Qh2 30.Kf2 Bh3 31.Ke1 Qe2) 25...Rh6 26.ef4 (26.Kg1 Bg3! 27.Rb6 Bh2 28.Kf1 Qe4–+) 26...Rh2 27.Kg1 Rd2 28.Bd2 Qe4 (29.Re1 Qd4 30.Ne3 Ra4–+) 0–1. Nadenau,Oskar – Bleitner,H, corr FRG–ch13 sf 7275, 1972.

13.g4 Bg6 =.

7.Be2 c6

8.0–0 a6 9.cd5 ed5 10.bc6 bc6 11.Ba3 c5 12.d4 Ne4 =.

8.0–0 cb5 9.cb5 e5 10.Nc3 Qa5 11.Rc1 a6 12.d4 e4 =.

8.0–0 dc4 9.bc6 bc6 10.Na3 c3 11.dc3 Qc7 12.Nc4 Be7 =.

8.a4 dc4 9.Bc4 cb5 10.ab5 Nb6 11.Be2 Re8 12.0–0 e5 13.d4 ed4 14.Nd4 Nbd5 15.Nc3 (15.Nd2!?=) 15...Nc3+= 16.Bc3 Ne4 (16...Qc7!? 17.Ba5 b6+=) 17.Bb2= Qh4 18.Nf3 Qh6 19.g3 (19.Qd5!?=) 19...Bg4 20.Nh4 Bh3 21.Re1? (better is 21.Ng2!?+=) 21...Nf2–+ 22.Kf2?? (better is 22.Qa4–+) 22...Qe3 0–1. kannisogoet – guilhermeaxe, kurnik, 2013.

8.a4 Re8 9.0–0 e5 10.d4 e4 11.Nfd2 Nf8 12.Ba3 Bb8 (12...Bc7 13.Nc3 cb5 14.ab5 dc4 15.Qc2 Be6 16.Nde4 Bf5 17.Nf6 Qf6 18.Qa2 Qh6+/–) 13.bc6 bc6 14.cd5 cd5 15.Qc2 a6 16.Rc1 Ng6 17.Nc3 Bg4 18.Rab1 Be2 =.

8.a4 Re8 9.0–0 e5 10.d4 e4 11.Nfd2 Nf8 12.Na3 Bb8 (12...Qc7 13.h3 Ne6 14.c5 Be7 15.Rc1 Bd7 16.Bc3 b6 17.Nb3 Qb7 18.Bb4 Rec8=) 13.bc6 Qd6 14.f4 ef3 15.Nf3 bc6 16.Ne5 N8d7 17.cd5 cd5 18.Bb5 a6 +=.

8.a4 Re8 9.0–0 e5 10.d4 e4 11.Nfd2 Nf8 12.Nc3 Bb8 (12...Qc7 13.h3 Ng6 14.c5 Be7 15.a5 cb5 16.Qb3 Rd8 17.Nb5 Qc6 18.Rfb1 a6=) 13.bc6 bc6 14.Rb1 Qd6 15.g3 Bh3 16.Re1 Ne6 17.c5 Qe7 18.a5 Bc7 +=.

8.a4 Re8 9.0–0 e5 10.d4 e4 11.Nfd2 Nf8 12.bc6 Qc7 (12...bc6 13.Ba3 Bb8 14.cd5 cd5 15.Qc2 a6 16.Rc1 Bg4 17.Nc3 Be2 18.Ne2 Ne6=) 13.Ba3 Bh2 14.Kh1 bc6 15.g3 Bg3 16.Bf8 Qd7 17.fg3 Qh3 18.Kg1 Qg3 –+.

8.d4 cb5 9.cb5 Ne4 (9...a6 10.0–0= ab5 11.Bb5 Nb6 12.Ne5 Bd7=; 9...Qc7 10.0–0 Ng4 11.h3 Nh2 12.Nh2 Bh2=) 10.0–0 b6 (10...Qa5 11.Bd3 (11.Nbd2 Ndf6 12.Nb3 Qb6=) 11...Ndf6 12.Ne5 Nd7+=) 11.Nbd2 (11.Ba3 Ba3 12.Na3 a6+= (12...Qe7=)) 11...Bb7 (11...Ndf6 12.Ne5 (12.Ne4 Ne4 13.Qa4=) 12...a6=) 12.Rc1 (12.Ne4 de4 13.Ne5 Bd5=) 12…Rc8 (12...a6=) ½–½. Hecht – Nonnenmacher, Berlin, 1955.

8.d4 dc4 9.bc6 bc6 10.Nbd2 Ba6 11.Bc4 Bc4 12.Nc4 Bb4 =.

8.cd5 ed5 9.0–0 Re8 10.bc6 bc6 11.Nc3 c5 12.Nb5 Be7 =.

8.cd5 ed5 9.a4 c5 10.0–0 Re8 11.Nc3 Ne5 12.a5 Nf3 =+.

8.cd5 ed5 9.Nc3 Re8 10.bc6 bc6 11.0–0 c5 12.Rb1 a6 =+.

8.cd5 ed5 9.Nd4 c5 10.Nf5 Bc7 11.Qc2 Re8 12.0–0 Nb6 =.

8.cd5 Nd5 9.Na3 cb5 10.Nb5 Be7 11.0–0 b6 12.Bc4 Bb7 =.

8.cd5 Nd5 9.Nc3 Nc3 10.dc3 Qc7 11.c4 Bb4 12.Kf1 e5 =+.

8.cd5 Nd5 9.bc6 bc6 10.Qc2 c5 11.Na3 N7b6 12.Nb5 Nb4 =.

8.0–0 e5

9.c5 Bc5 10.Ne5 Bd6 11.Nd7 Bd7 12.bc6 bc6 =.

9.bc6 bc6 10.c5 Rb8 11.cd6 Rb2 12.Qc1 Rb6 =+.

9.d3 dc4 10.dc4 Qc7 11.h3 Rd8 12.bc6 bc6 =+.

9.d4 e4 10.Nfd2 cb5 11.c5 Bb8 12.Bb5 Qc7 =+.

9.cd5 cd5 10.Nc3 Qa5 11.Qc2 Qb6 12.Rac1 Re8 =.

8.a4 e5

9.0–0 dc4 10.bc6 bc6 11.Bc4 (11.Na3 e4 12.Nd4 Ba6=+) 11...e4–/+ 12.Nd4 Ne5 13.Be2 c5 (13...Rb8 14.Qc2=+) 14.Nb5 Bb8 (14...Bg4 15.Nd6 Qd6 16.Be5 Qe5 17.Nc3 Be2 18.Qe2=+) 15.Qc2 (15.f4!? ef3 16.Bf3=) 15...a6–/+ 16.N5a3 Nf3 (16...Qd6 17.g3–/+) 17.Bf3=+ ef3 18.Qc5 fg2 19.Kg2?? (better is 19.Rc1 Ng4 20.Qh5–+) 19...Bh3!!–+ 20.Kg1 (20.Kh3 Qd7) 20…Qd3 (21.Nc3 Qg6 22.Qg5 Qg5 23.Kh1 Qg2#; 20...Bf1?! 21.Kf1 Bh2 22.Qf5–+) 0–1. Lein,Anatoly – Korolkova,Luiza I, corr Soviet 7476, 1974.

9.0–0 e4 10.Nd4 =+.

9.c5 Bc5 10.Ne5 Ne5 11.Be5 Re8 12.Bf4 Bf5 13.0–0 d4 =+.

9.d3 dc4 10.dc4 Qc7 11.Qc2=+ Rd8 12.Nc3 Nc5 13.Rd1 Bg4 =+.

9.d4 e4 10.Nfd2 Qc7 =.

9.cd5 cb5 10.ab5 Nd5 11.Nc3 Nc3 12.dc3 Nc5 13.Ba3 Qc7 =+.

9.cd5 cd5 10.0–0 Qc7 11.Ba3 a6 12.Bd6 Qd6 13.d4 e4 =.

9.cd5 cd5 10.Ba3 Ba3 11.Na3 d4 12.ed4 e4 13.Ne5 Re8 =.

9.cd5 cd5 10.d3 Qc7 11.Nc3 e4 12.Nd4 Nc5 13.Rc1 Bg4 =+.

9.cd5 cd5 10.d4 e4 11.Nfd2 Nb6 12.a5 Nbd7 13.Nc3 Re8 =.

9.cd5 Nd5 10.Nc3 Nc3 11.dc3 Qf6 12.Ba3 Nc5 13.Bc5 Bc5 =+.

9.cd5 e4 10.Nd4 c5 11.Nf5 Be5 12.Nc3 Nb6 13.d4 ed3 =+.

9.d3 Re8

10.0–0 dc4 11.dc4 Qc7 12.h3 e4 13.Nfd2 Bh2 =+.

10.0–0 Nf8 11.Nbd2 (11.c5 Bc5 (11...Bc7 12.d4 e4 13.Nfd2 Bb8=) 12.Be5 Ng6= 13.bc6 Ne5=+) 11...h6 (11...e4 12.Nd4 (12.de4 de4 13.Nd4 c5=) 12...Qc7 13.h3 Bh2=) 12.Qb3 (12.c5 Bc5 13.Be5 Bb4+= 0.34/8 (13...N8d7=)) 12...Bg4 (12...e4 13.Ne1 Bg4=) 13.Rfe1 (13.h3 Bh5= (13...Bf5=)) 13...e4 14.de4 (14.Nd4 Qc7 15.f4 ef3 16.N4f3 Bf3 17.Bf3 Bh2 18.Kh1 Be5–/+) 14...de4 15.Nd4 c5 16.Nc2 Be2 17.Re2 Be5 18.Ne1 (18.Be5 Re5 19.Rd1 Qd3=) 18...Qd7 (18...Qc7 19.Be5 Re5 20.a5=) 19.Nf1 (19.Be5 Re5 20.a5 Rd8=) 19...Ng6 20.Rd2 (20.Rd1 Qg4 21.Red2 Bb2 22.Qb2 Ne5=) 20...Qe7 (20...Qe6 21.Be5 Ne5 22.Rc1=+) 21.Rad1 (21.a5 Qe6=) 21...Bb2 22.Qb2 (22.Rb2 Ne5=) 22...Ne5 23.Qc3 (23.Qc2 Qe6 24.Rc1 Red8=+) 23...Qe6=+ 24.Rc2 Rad8 25.Rd8 Rd8 26.Rd2 Re8 27.Rc2 Nfd7 28.a5 Qg6 29.Kh1 Qh5 30.Rd2= Nf6 31.Kg1 Re6 32.Qc2 Qh4 33.f4? Qe1 34.fe5 Re5 35.Rd8 Kh7 36.Qd2 Qa1–+ 37.Ra8?? Rf5 38.Qe2 Qa5 39.h3 Qa1 40.Rb8?? Nh5 41.Kh2 Qe5 (42.Kg1 Qb8–+) 0–1. Holz auf der Heide – Halser, Leipzig, 1999.

10.Nc3 dc4 11.dc4 Qc7 12.bc6 bc6 13.Qc2 e4 =+.

10.Nbd2 e4 11.de4 de4 12.bc6 bc6 13.Nd4 Qc7 =+.

10.cd5 Nd5 11.0–0 Qb6 12.Na3 Ba3 13.Ba3 cb5 =+.

8.cd5 cd5

9.0–0 e5 10.Nc3 Nb6 11.d4 e4 12.Ne5 Nfd7 =+.

9.Ba3 Ba3 10.Na3 e5 11.0–0 e4 12.Nd4 Qa5 =.

9.Qc2 Re8 10.0–0 e5 11.Rc1 Nb6 12.Nc3 e4 =+.

9.Nc3 Re8 10.Rc1 e5 11.d4 e4 12.Nd2 Nb6 =.

9.d4 a6 10.0–0 ab5 11.Bb5 Ne4 12.Qd3 Nb6 =.

7.Be2 e5

8.Qc2 Re8 9.cd5 (9.0–0 Nc5+=) 9...Nd5 (better is 9...e4 10.Nd4 Nd5+=) 10.Bc4? (better is 10.Nc3!? Nc3 11.Bc3=) 10...N7b6 (better is 10...Nb4 11.Qc3 Nb6–/+) 11.h4? (11.Bd3 Nb4 12.Bh7 Kf8–/+) 11...Nc4 (better is 11...Nb4 12.Qb3 Nc4 13.Qc4 Be6–+) 12.Qc4–/+ Be6 (better is 12...Nb6 13.Qc2 Qf6–/+) 13.Ne5?? (better is 13.Ng5+=) 13...Ne3!–+ 14.Qe4 (14.de3 Bc4 Discovered attack; 14.fe3 Bc4 Discovered attack) 14...Be5 (better is 14...Nc4! 15.0–0 Nb2 16.d4–+) 15.Be5 Ng4 (better is 15...Nc4 16.0–0 Bd5 17.Bc7 Be4 (17...Re4?! 18.Bd8 Rd8 19.d3 Rh4 20.dc4 Bc4 21.Rc1–+; 17...Qc7?! 18.Qd5 Rad8 19.Qf5–/+) 18.Bd8 Rad8–+) 16.Kf1 (16.0–0 Ne5 17.Qe5–+) 16...Ne5 17.Qe5 (17.Kg1 Bg4 18.Qf4–+) 17...Bc4 18.Kg1 Re5 19.Na3 Qd4 20.Rc1 Bb5 (better is 20...Re2 21.Rf1 Bd3 22.Nc2 Bc2 23.Rh3 Rd2 24.h5–+) 21.g3 Qd2 22.Rc2 Qe1 (22...Bc6 23.Kh2 Re1 24.Re1 Qe1 25.Rc6 Qf2 26.Kh3 Qf1 27.Kh2 Re8 28.Rc2 Re1 29.g4 Qg1 30.Kh3 Re3 mate) 23.Kh2–+ Qb4 24.Nb5 Qb5 25.Rd1 h6 26.Rc7 Qb6 27.Rdd7 Qf2 28.Kh3 Qa2 29.Rb7 Qe6 30.Kg2 Re2 31.Kf1 Re8 32.Rf7 Qh3 33.Kg1 Qg2 mate 0–1. Kowacz,Agnieszka – Kotula,Magdalena, OOM w Sportach Umyslowych w Szachach D1 Poland, 2012.

8.d4 e4 9.Nfd2 Re8 10.0–0 c6 11.Nc3 Qc7 12.h3 a6 13.a4 Bb4 14.Qb3 Ba5 15.Rfd1 Nb6 16.c5 Nbd7 17.Qa3 Qd8 18.b6 Nf8 19.Nf1 Ng6 20.Ng3 Bd7 21.Na2 Qc8 22.Kh2 (22.Nc1 Bh3 23.Nb3+/–) 22...Nh4? (22...Qb8 23.Nc1 h5 24.Kg1+–) 23.Bc3 (better is 23.Nc1 Qd8 24.Nb3 Bb6 25.cb6 Qb6 26.Nc5+–) 23...Bc3= 24.Nc3 h6 25.Bf1 Nh7 26.Nce2 Ng5 27.Nf4 Ne6 28.Be2 Qb8 29.Qc1 g6 (29...Nf4 30.ef4 Ng6 31.Nh5=) 30.Ra3 Kg7 31.Kg1 Qd8 32.Qd2 Qe7 33.Re1 Rf8 34.Rb1 Rfd8 35.Rab3 Rh8 36.a5 Rhf8 37.Re1 Rh8 38.Rc1 Raf8 ½–½. Rooijen Van,Peter (1675) – Baez,Jorge, SD–2011–0–00127, 2012.

7.Be2 Qe7

8.0–0 e5 9.d4 dc4 10.de5 Ne5 11.Nbd2 Nfg4 12.Qc2 Nf3 13.Nf3 =.

8.0–0 e5 9.d4 e4 10.Nfd2 dc4 11.Nc4 Nb6 12.Nbd2 Nc4 13.Nc4 =.

8.0–0 e5 9.cd5 Nd5 10.d3 (10.Nc3 Nc3 11.Bc3 a6 12.ba6 b6 13.Qc2=) 10...N7f6 (10...Rd8 11.Nbd2 (11.Nc3 Nc3 12.Bc3 a6 13.ba6=) 11...a6 12.ba6 b6 13.Qb3=) 11.Nbd2 Bd7 (11...a6 12.a4= (12.ba6 b5 13.Ne4=) 12...ab5 13.ab5=) 12.a4 (12.Nc4 Bb5 13.Nfe5 Rfe8=) 12...c6 (12...Nb6 13.a5 Nbd5 14.Nc4=) 13.bc6 (13.Nc4 e4 14.de4 Ne4+=) 13...Bc6 14.Nc4 e4 15.Nd4 (15.Nd6 ef3 (< 15...Qd6 16.de4 Ne4 17.Ba3+/–) 16.Nf5 Qb4=+) 15...Bd7? (better is 15...Bb4!?+=) 16.Nd6+– Qd6 17.Ba3 (17.de4!? Ne4 18.Ba3 Qe5 19.Bf8 Rf8+–) 17...Nb4+/– 18.de4 a5 (18...Ne4?? 19.Qb1 Rfe8 20.Bb4+–) 19.f3 Rfd8 20.Qb3+– Bc6 21.Rfb1 Qd7 22.Bb4 ab4 23.Nc6 bc6 24.Qb4 Qa7 25.Qc3 Ne8 26.a5 Rd6 27.a6 Qe7 28.Rb7 Qh4 29.Qb3 Qf6 30.e5 (30...Qf5 31.ed6+–) 1–0. Mueller,Klaus Detlef – Bjuhr,Arne, corr ICCF, 1969.

8.0–0 e5 9.cd5 e4 10.Nd4 Qe5 11.g3 Nb6 12.d3 Bh3 13.Re1 =.

8.a4 Nc5?? 9.0–0 (better is 9.d4!? Nce4 10.c5 Nc5 11.dc5 Bc5 12.0–0+–) 9...c6 (9...dc4 10.Bc4 Rd8 11.d4=) 10.Bf6 (10.d4!? Nce4 11.c5+=) 10...Qf6=+ (< 10...gf6 11.d4 Ne4 12.c5+=) 11.d4 Ne4 12.Qc2 Qh6 (12...c5 13.Nbd2 Nd2 14.Qd2 dc4 15.dc5 Bc5 16.Rac1=) 13.Nbd2 f5 (13...Nd2 14.Qd2 dc4 15.bc6 bc6 16.Rab1+=) 14.Ne5 g5 (14...c5 15.Rad1=) 15.f3 Nd2 16.Qd2 f4 (16...c5 17.a5+=) 17.Ng4 (17.c5 Be5 18.de5 Qh4+/–) 17...Qg7 18.e4 h5 19.Nf2 e5 20.cd5 cd5 21.de5 Be5 22.Qd5 Kh8 23.Rac1 Re8 24.Rc5 Bf6 25.Rfc1 Be6 26.Qd2 Rad8 27.Qe1 (27.Bd3 Bb2 28.R1c2 Bd4+=) 27...Re7 28.h4 (28.a5 Bb2 29.Rd1 Bd4+=) 28...b6= 29.hg5 (29.Rc6 gh4 30.Kh1 Be5=) 29...bc5 (better is 29...Bb2!? 30.Rc6 Bc1 31.Rc1 Qg5–/+) 30.gf6= (30.Rc5?? Bd4 (< 30...Bg5 31.Kh2–+) 31.Rc6 Qg5–+) 30...Qf6 31.Rc5 Rh7 (31...h4 32.Bc4 Bc4 33.Rc4+=) 32.e5 (32.Bc4 Bc4 33.Rc4 Rg7+=) 32...Qf7 (32...Qg6 33.Ne4+=) 33.Ne4+= Qe7. Perez,Luis Manuel – Vazquez,E, corr CUB, 1990.

8.a4 e5!? =+.

8.d4 b6 9.0–0 Bb7 10.Nbd2 Ne4 11.Rc1 f5 12.Ne5 Rad8 13.Nc6 Bc6 14.bc6 Ndf6 15.cd5 ed5 (worse is 15...Nd5 16.Ne4 fe4 17.Qc2+/–) 16.Nf3 f4 17.Ne5 fe3 18.fe3 Bb4 19.Qd3 Nd2 20.Rfd1 (20.Rf4 Nfe4=) 20...Nfe4+= 21.Rd2? (21.a3 Nf2 22.Qc2–+) 21...Bd2–+ 22.Rd1 Bb4 23.Bf3 Bd6 (23...Qh4 24.Rf1–+) 24.Rf1 (24.Qb3 Be5 25.de5–+) 24...Kh8 25.Qe2 Ng5 26.Nd7 Nf3 27.Rf3 Rf3 28.Qf3 Re8 29.Bc1 Ba3 30.Bd2 Qe6 31.Qh5 Qg6 (better is 31...Qe4!? 32.Qd1 Bd6–+) 32.Qg6–/+ hg6 33.Kf2 Re6 34.Ne5 Bd6 35.Nd7 (35.Nf3 Be7 36.Ne5 Kh7–+) 35...Be7 (better is 35...Bh2!? 36.Nb8 Bd6 37.Na6–+) 36.Nb8 a5 37.Kf3 Kg8 38.Be1 Kf7 (38...Bd6 39.h3–+) 39.Bg3–/+ Bd6 40.Bf2 (40.Bd6!? Rd6 41.Nd7–+) 40...b5 (40...Bh2 41.g3 Rf6 42.Kg2–+) 41.Nd7 b4 42.Ke2 Re8 43.Kd3 a4 44.Bg3?! (44.h3 Re4–+) 44...b3 45.ab3 a3 (better is 45...Bg3 46.hg3 Re3 47.Ke3 a3–+) 46.Kc2 (46.Be1–+) 46...a2 47.Kb2 (47.Bd6 a1Q 48.Ne5 Ke6 49.Ba3 Qa3 50.Nd3–+) 47...Ra8 48.Ka1 Bb4 49.Ne5 Ke8 0–1. Nemeth,Laszlo1 (1985) – Bakos,Balasz (2245), Fuzesabony op, 2004.

8.d4 c5 9.bc6 bc6 10.c5 =.

8.0–0 dc4

9.Bc4 Nb6 10.Be2=+ e5 11.d3 Rd8 12.Nbd2 a6 13.ba6 =.

9.Bc4 e5

10.Nc3 Nb6 11.Bb3 =+.

10.d3 Nb6 11.Nbd2 Bg4 12.a4 Rfc8 13.h3 =.

10.d4 e4 11.Nfd2 Nb6 12.Be2 Bf5 13.Nc3 =.

10.Nc3 e4=+

11.Nd4 Ne5 12.Be2 Nd3 13.Bd3 ed3 +=.

11.Nd4 Ne5 12.Be2 Rd8 =.

11.Ne1 Nb6 12.Be2 Qe5 =+.

11.Ne1 Nc5 12.Na4 (12.d4 ed3 13.Nd3 Nd3 14.Bd3 Rd8=) 12...Ng4 (12...Bh2 13.Kh2 Ng4 14.Kg1 Na4 15.Qa4–/+) 13.f4 ef3 14.Nf3 Nh2 15.Nc5? (15.Nh2 Bh2) 15...Nf1–+ 16.Nd3 (16.Qf1 Bc5 17.Qd3 Qd6–+) 16...Nh2 (16...Ng3 17.Nde5–+) 17.Nde5 (17.Nfe5 Be6–+) 17...Nf3 18.Nf3 Bg4 (18...Be6 19.Qc2–+) 19.Qb3 (19.Bd5 Rfb8–+) 19...Bf3 20.gf3 Qg5 (20...Rad8 21.f4 Bf4 22.ef4 Qc5 23.Kf1 Rd2 24.Be2–+) 21.Kf1 Qg3 22.f4 (22.Bd5 Rab8–+) 22...Be7 (22...Rad8 23.Bd5 Be7 24.Bc3–+) 23.Re1 (23.Bd5 Rad8 24.Bc3 Bh4–+) 23...Qf3 24.Kg1 Rad8 (24...Qg4 25.Kf1–+) 25.Re2 Rd6 (26.Rg2 Rg6 27.Rg6 hg6–+) 0–1. Weigel,H – Koepcke,H, 2003.

11.Ne1 Ne5 12.Be2 (12.Nd5 Qd8 13.Nf6 Qf6=+) 12...Bf5 (12...Neg4 13.g3=+) 13.f3 ef3 (13...Nd3 14.Bc1 Nc1 15.Qc1=+) 14.gf3 (14.Nf3 Rad8=+) 14...Bh3 (14...c5 15.f4 Ng6 16.Rc1=+) 15.Rf2 (15.Ng2 c5=+) 15...Rad8 (15...c5 16.f4 Ng6 17.Bc4=+) 16.Ng2 (16.Qa4 Ng6=) 16...Ng6 (16...Ned7 17.Qa4=+) 17.Qc2 (17.Qa4 Rfe8=+) 17...c6 (17...Rfe8 18.f4=+) 18.bc6 Qc7 19.f4 bc6 (19...Qc6 20.Bf3 Qd7 21.Ne4 Ne4 22.Qe4=) 20.Ne4 (20.Rc1 Qd7=) 20...Ne4 21.Qe4 Rfe8 22.Qd4 Be5=+ 23.Qb4 Bb2 24.Qb2 Bf5 25.Qc3 Be4 26.Rc1 Rd6 27.d4 Ne7 28.Bf3 Nd5 29.Qa3 Rg6 30.Kf1 Qd7 31.Be4 Re4 32.Rf3 Qg4 33.Rg3= Qh5 34.Rg6 hg6–/+ 35.Kg1 Qh3 36.Qd3 f5 37.Re1 Nf6 38.Re2 Ng4 39.Ne1 Ne3?? 40.Qb3 Kh7 41.Ng2+– Qh2 42.Kh2 Ng4 ½–½. Jacobi,Karl_Heinz (1910) – Neukirch,Detlef (2195), 14 sen. LSEM Sachsen/Anh. op, 2006.

8.d4 dc4

9.Bc4 e5 10.a3 e4 11.Nfd2 Nb6 12.Bb3 (12.Be2 Nfd5=+ 13.a4 Qh4 14.g3 Qe7=+) 12...Bf5 (12...a6 13.Nc3=+ Be6 14.0–0 Rfe8=+) 13.0–0 (13.Nc3!?=+ a6 14.Qc2 ab5=+) 13...Bh2!–/+ 14.Kh2 Ng4 15.Kg3 Qd6 16.f4 Qg6 17.Qc1 (better is 17.Qe2!? Ne3 18.Kh2 Nf1 19.Nf1 Qh6 20.Kg3–/+) 17...Ne3–+ 18.Kf2 Qg2 (18...Ng2 19.Ne4 Be4 20.Qc7 Ne3–+) 19.Ke1?? (better is 19.Ke3 Qg3 20.Nf3 ef3 21.Kd2–+) 19...Qg3–+ 20.Rf2 Ng4 (21.Ne4 Be4–+) 0–1. Suess,Stefan – Henk,Martin, corr FRG–chJ, 1984.

9.Bc4 e5 10.a3 e4 11.Nfd2 Rd8 12.Nc3 Nb6 13.0–0 Bh2 14.Kh1 Bd6 –+.

9.Bc4 e5 10.de5 Ne5 11.Ne5 Be5 12.Be5 Qe5=+ 13.Nd2 Rd8 14.Qc1 Qg5 =+.

9.Bc4 e5 10.Ne5 Ne5 11.de5 Be5 12.Be5 Qe5 13.Nd2 Rd8 14.Qc1 Qg5 =+.

9.Nbd2 a6 10.Bc4 ab5 11.Bb5 =+.

9.Nbd2 e5 10.Nc4 Bb4 11.Nfd2 ed4 12.Bd4 Ne4 (12...a6 13.a4=+) 13.Rc1 Nb6 (13...a6 14.a3 ab5 15.ab4 bc4 16.Ne4 Qe4 17.Rc4=) 14.0–0+= Nd2 15.Nd2 Ba3 16.Rb1 (16.Rc2 Bf5 17.e4 Be6=) 16...Bf5= 17.e4 (17.Rb3 Rfd8=) 17...Be6 (better is 17...Rfd8!? 18.Bb6 Be4–/+) 18.Qc2= c5 (18...Rad8 19.Nf3=) 19.bc6 (19.Bg7!? Kg7 20.Qc3 Qf6 21.Qa3+/–) 19...Rac8+= 20.Bb6 Rc6 21.Qa4 ab6 22.Nc4 (22.Nf3 Rc3= (22...Ba2? 23.Ra1+–)) ½–½. Lehr,Thomas – Moysich,Dirk, Schleswig Holstein–ch qual, 1996.

6.Nf3 b6

7.a4 a6 8.cd5 ed5 9.Be2 =+.

7.a4 Bb7 8.a5 (8.cd5 ed5 9.Nd4 0–0=) 8...Nc5 (8...ba5 9.cd5 ed5 10.Nd4=) 9.a6+= Bc8 10.Nc3 (10.Ne5 Nfe4 11.Qh5 Qf6+=) 10...0–0 11.Qc2 (11.d4 Nce4 12.Bd3+=) 11...dc4 (11...Bd7!?=) 12.Bc4+/– e5 13.d4 ed4 14.Nd4 Re8 (14...Qe8 15.0–0+/–) 15.0–0 Bd7 (15...c6 16.bc6 Ng4 17.h3 Bh2 18.Kh1+/–) 16.Rfd1 Re5 17.Nce2 (17.Rd2 Nfe4 18.Ne4 Ne4+/–) 17...Qe8 (17...Qe7 18.Nf3 Rh5 19.Nf4+/–) 18.Nf3 Rf5 19.Ng3 (19.Rab1 Rd8+/–) 19...Bg3 20.hg3 (20.fg3?! Qe3 21.Kh1 Qe4=) 20...Rh5 (20...Nce4!?+/–) 21.Bf6 gf6 22.Qb2 (22.Nd4 Rg5+/–) 22...Rh6 23.Nd4 Qe5 (23...Rc8 24.Rd2+/–) 24.Qe2 Re8 25.Rab1 Ne4 26.Rbc1 Qg5 27.Bf7 Kf7 28.Rc7 Re7 29.Nc6 Bc6 30.Qc4 Kg6 31.Qg8 Kf5 32.g4 Kg4 33.Qg5 Ng5 34.Re7 Bb5 35.Ra7 Rg6 36.Rd4+– Kh5 37.Rb4 Bc6 38.Rb6 Be4 39.f4 Nh3 40.Kh2 Nf2 41.Rh7 Kg4 42.a7 Nd1 43.Rh3 Kf5 44.Rb5 Ke6 45.f5! (45...Kf7 46.fg6 Kg6 47.Rb8+–) 1–0. NN – Bochnicka, corr, 1993.

7.cd5 ed5

8.Nc3 0–0 =.

8.Nd4 0–0 =.

8.Be2 0–0 9.0–0 Qe7 10.Qc2 Nc5 11.Nd4 Nfe4 (11...Qe4 12.Rc1=) 12.f4 (12.d3 Ng5+=) 12...Qh4 (12...a6!?=) 13.Bf3 (better is 13.Nc3 Nc3 14.Qc3+=) 13...f5? (better is 13...Bg4!?+=) 14.d3+– Rf6? (better is 14...Nf6+–) 15.de4 fe4 16.g3 Qh6 (16...Qh3 17.Be2+–) 17.Bg2 (better is 17.Be2 Bb7+–) 17...Nd3 (17...Qh5 18.Nc3+–) 18.Ba3 (better is 18.Qc6 Rb8 19.Qd5 Rf7+–) 18...Ba3 19.Na3 Bg4 (19...Rf7 20.Nb1 a6+–) 20.Qb3 Rd8 (20...Rf7 21.Qd5 Re8 22.Nac2+–) 21.Be4 Nc5 22.Bd5 Kh8 23.Qc4 Qh5 (23...Rfd6 24.Bg2+–) 24.Bf3 (24.e4!? Rh6 25.Rf2 Rhd6+–) 24...Rh6 (24...Bf3 25.Nf3 Rd3 26.Qc1+–) 25.Qe2 Bf3 26.Rf3 Ne4 (26...a6 27.ba6 Na6 28.Nc4+– (28.Qa6 Qh2 29.Kf1 Qh1 30.Ke2 Qa1–+)) 27.Nc4 (27.Rc1 Nc5+–) 27...a6 (27...Nc3 28.Qg2 Nb5 29.Ne5 Nd4 30.ed4+–) 28.Ne5 ab5 29.g4 Qe8 30.Qb5 c6 (30...Rf6 31.Qd3 Ng5 32.fg5 Rf3 33.Nef3+–) 31.Qc4 (31.Qb6!? Rf6 32.Ndc6 Rc8+–) 31...Rd5 (31...Rf6 32.Qc2 c5 33.Qe4 cd4 34.ed4 Rfd6+–) 32.Ndc6 (32.Ndc6 Rhd6 33.Qe4+–) 1–0. Teichmann,Erik O M C (2310) – Scalzi Evans,Federico (2050), 18th Obert Internacional Sant Marti Gro, 2016.

7.Be2 Bb7

8.0–0 0–0 9.Nc3 dc4 10.Bc4 a6 11.d4 =.

8.0–0 0–0 9.Nc3 c6 10.bc6 Bc6 11.cd5 ed5 (11...Nd5 12.Ne4 Be7 13.d3=) 12.Rc1+= a6 13.Bd3 (13.Nd4 Bb7+=) 13...Bb7 14.Bb1 Ne5 (14...b5 15.Nd4=) 15.Ne5+= Be5 16.f4 Bd6 17.Ne2 (17.Na4 b5 18.Nb6 Qb6 19.Bf6 Bc5 (19...gf6?? 20.Qg4 Kh8 21.Qf5 Qe3 22.de3 Bf4 23.Qh7) 20.Rc5 Qf6+= (< 20...Qc5 21.Qh5 g6 22.Qh6 Qe3 23.de3 d4 24.Qg7)) 17...Rc8 (17...Ne4 18.Nd4=) 18.Nd4 (18.Rc8 Bc8 19.Ng3 Be7+=) 18...Rc1 19.Qc1 Qc7 (19...Re8!?=) 20.Nf5+/– Qc1 21.Rc1 Bb8 (21...Bb4 22.a3 Bd2 23.Rc7+/–) 22.Ng7! Kg7 23.g4 h6 (23...Bd6 24.g5+/–) 24.g5+– hg5 25.fg5 Rc8 26.Bf6 Kg8 (26...Kf8 27.Rc8 Bc8 28.h4+–) 27.Rf1 (27.Rc8 Bc8 28.d4 Bg4+–) 27...Rc4 28.Bd4 Bd6 (28...Bc8 29.Kg2+– (29.Bb6?! Bh3 30.Re1 Rg4 31.Kf2 Rg2 32.Kf3 Rg5=)) 29.Bh7! Kh7 30.Rf7 (30...Kg6 31.Rb7+–) 1–0. Charousek,Rudolf – Brody Dr, Budapest, 1897.

8.0–0 0–0 9.h3 a6 10.d3 =+.

8.0–0 0–0 9.h3 c6 10.Nc3 (10.d3 cb5 11.cb5 Qe7=+) 10...Nc5 (10...dc4 11.Bc4 a6 12.a4=+) 11.cd5= cd5 12.d4 Nce4 13.a4 (13.Qa4 Qe8=) 13...Rc8 (13...a6 14.Ne4 de4 15.Ne5=) 14.Qb3 (14.Ne4 de4 15.Ne5 Bd5=) 14...Re8 (14...Qe7 15.Rfc1=) 15.Rfc1 h6 (15...Re7 16.Ne4 de4 17.Rc8 Qc8 18.Rc1=) 16.Ba3 Ba3 (16...Nc3 17.Rc3 Rc3 18.Qc3+=) 17.Qa3+= Qe7 (17...Nd6 18.Qb4+=) 18.Bd3 (18.Qe7 Re7 19.Ne4 Rc1 20.Rc1 Ne4+/–) 18...Nc3 (18...Qa3 19.Ra3 Re7 20.Ne2+=) 19.Rc3 Rc3 20.Qc3 Rc8 21.Qb2 Qc7 (21...Ne4 22.a5+=) 22.Ne1 Ne4 23.f3 Nd6 24.Kf2 Nc4 25.Qa2 Na5 26.Be2 e5 27.de5 Qe5=+ 28.Nd3 Qf6–/+ 29.Qb2 Qh4 30.Kf1 Qe7 31.Qe5=+ Kf8 32.Qe7= Ke7 33.Rc1 Nc4 34.Kf2 Kf6 35.Nb4 Nd6 36.Rc8+= Bc8 37.Nd5+– Ke5 38.Nb4 Bb7 39.g4 Nc8 40.f4 Kd6 1–0. De Visser,Arno – de Graaf, 1982.

8.0–0 dc4 9.Bc4 Ng4 10.g3 =+.

8.0–0 dc4 9.Bc4 Ng4 10.Bg7 Rg8 11.h3 Bf3 12.Qf3 Nh2 –/+.

8.0–0 dc4 9.Bc4 Ng4 10.Bg7 Rg8 11.h3 Rg7 12.hg4 Rg4 13.Be6 fe6 14.Ne1 –+.

8.d3 dc4 9.dc4 0–0 10.0–0 a6 11.a4 (11.Nc3 Nc5=) 11...ab5 12.cb5 Bc5 (12...Qe7 13.Qc2=+) 13.Nbd2 h6 (13...Qe7 14.Nb3=) 14.Qc2 Bd6 15.Rfc1 Nd5 (15...Nc5 16.Bd4 Nfe4 17.Nc4=) 16.Bd4 (16.Nc4 N7f6+=) 16...N7f6 (16...e5 17.Bb2=) 17.Qb3 (17.Nc4 Bb4+=) 17...Re8 18.Nc4 Be7 (18...Bb4 19.Nce5+=) 19.Nce5 (19.a5 ba5 20.Na5 Qc8+/–) 19...Nb4 20.Nc6 Nc6 21.bc6 Bc8 22.Rd1 Bd6 23.e4 (better is 23.Be5!?+=) 23...Ne4=+ 24.Bd3 Nf6 25.Be5 Nd5 26.Bc4 Nf6 27.Rd2 Ne4 28.Rd4= Nc5 29.Qb4 Qe7 30.Bd6 cd6 31.Qb6 Ra4 32.Ra4 Na4 33.Qb4 Nc5 34.Ne1 d5 35.Bb5 Ne4 36.Nd3 Qc7 37.Nc5 Nc5 38.Qc5=+ Qe5 39.Rd1= Qc7 40.Ra1 Rd8=+ 41.Ra7 Qe5 42.c7 Rd7? 43.Ra8?? Rc7+= 44.Rc8 Rc8 45.Qc8 Kh7 46.Bd3 g6 47.Qf8 Qa1 48.Bf1 Qf6 49.h3 d4 50.Qd6 Kg7 51.f4 Kh7 52.Qe5 Qd8 53.Bd3 Qd7 54.g4 Qa7 55.Kf2 ½–½. Istvanny (1630) – corneliuscoot, internet, 2007.

6.Nf3 Nb6

7.Qc2 dc4 8.a4 (8.e4 Bf4=) 8...0–0 (8...a6 9.ba6 ba6 10.e4=) 9.Na3 c4 (9.e4 Bf4=) 9...a6 10.Nc4 Nc4 11.Bc4 ab5 12.ab5 Ra1 13.Ba1 Qe7 14.0–0 (14.d4 Bb4 15.Nd2 Bd7=) 14...e5 15.h3 Nd7 16.e4 Nb6 17.Be2 (17.Bb3 Bd7 18.Rb1 Ra8= (< 18...Bb5 19.Bf7 Qf7 20.Rb5+/–)) 17...Be6 (17...f5 18.Bd3 Qf6 19.Re1+=) 18.Be5+= Be5 19.Ne5 Bh3 20.d4 Be6 21.Ra1 Qb4 22.Qc7 Qd4 23.Rd1 Qe4 24.Bf3 Nd5 25.Be4 (25.Qd6 Qc2 26.Rd5 Bd5 27.Qd5 Qc1 28.Kh2 Qc7+=) 25...Nc7+/– 26.b6 (< 26.Bb7 Nb5 27.Bc6 Nc3=+) 26...Na8 27.Rd6 (< 27.Bb7 Nb6 28.f4 Re8=+) 27...Bc8 28.Bd5 g6 29.Nf7 Kg7 30.Ne5 Rf6 31.Rf6 Kf6 32.Nc4 h5 33.f3 Kf5 34.Kf2 Kg5 (better is 34...h4!?+/–) 35.Ke3 Kh4 36.f4 (36.Kd4 Kg3+/–) 36...Kg4 37.Be4 g5? (better is 37...Kg3+/–) 38.Bf3+– Kh4 39.g3! Kg3 40.fg5 h4 (40...Bf5 41.Be4 (41.Bb7?! Nb6 42.Nb6 Kg4=) 41...Be6 42.Bb7 Nb6 43.Nb6+–) 41.g6 h3 42.Bb7!! Nb6 (42...Bb7 43.g7) 43.Nb6 Be6 44.Bf3 h2 45.g7 Kh3 (45...Kh4 46.Nd5 Kg5 47.Ne7+–) 46.Kf4 Kh4 47.Nd7! h1Q (47...Bd7 48.g8Q) 48.Bh1 Kh5 49.Nf8 (49...Bf7 50.Kf5+–) 1–0. Bendig,Frank (2090) – Zirek,Mehmet (1900), IECG, 2000.

7.Qc2 Nc4 8.Bc4 dc4 9.e4 =+.

7.d3 a6 8.a4 (8.Qc2 Qe7=+) 8...ab5 (8...0–0 9.Be2=+) 9.ab5= Ra1 10.Ba1 0–0 11.Qc2 Bb4 (11...Nbd7 12.Be2=) 12.Nbd2 (12.Bc3 Qd6=) 12...Qe7 (12...c6 13.bc6 bc6 14.Be2=) 13.Be2 Bd7 (13...dc4 14.dc4 Rd8 15.0–0=) 14.0–0 (14.Bd4 Rb8+=) 14...Ra8 (14...c5 15.Bc3 Bc3 16.Qc3+=) 15.Bd4+= Be8 (15...dc4 16.dc4 (< 16.Nc4 Nbd5=) 16...Bc5 17.Be5+/–) 16.e4 dc4 17.dc4 Nh5 18.g3 (18.Be3 Bc5+=) 18...Nd7 19.e5 f5 20.Nb3 Nc5 (20...c5 21.Bc3+=) 21.Bc5 (21.Nc5 Bc5 22.Rd1 Bg6+/–) 21...Bc5 22.Rd1 (22.Nc5 Qc5 23.Qd2 h6+/–) 22...Ba3 23.Nfd4 c5 (23...Ra7 24.c5 Bf7 25.b6 cb6 26.Ra1 bc5 27.Nb5+–) 24.bc6+– bc6 25.Bf3 g6 26.Nc6 Bc6 27.Bc6 Rc8 28.Bg2 (28.Bd7 Rc7 29.Qd3 Ng7+–) 28...Qc7 29.Qc3 Qb6 30.Rd7 Rb8 31.Nd4 Bc5 32.Qd2 Bd4 33.Qd4 Qd4 34.Rd4 Rb1 35.Bf1 Rc1 36.Rd8 Kf7 37.Rd7 Kg8 38.f4 h6 39.Kf2 Ng7 40.Be2 Kf8 41.Ke3 g5 42.Kd2 Ra1 43.c5 Ra5 44.c6 Rc5 45.Rd6 Ke7 46.Ke3 gf4 47.gf4 (47...Ne8 48.Rd7 Kf8 49.Bh5 Rc6 50.Rd8 Rc3 51.Kd4+–) 1–0. Bendig,Frank – Lindenblatt,Ingo, 2000.

7.cd5 Nbd5 8.Be5 =+.

7.cd5 Nfd5 8.Bg7 Rg8 9.Be5 +/–.

7.cd5 ed5

8.a4 0–0 9.Qc2= Re8 10.a5 Nbd7 11.Be2 a6 12.ba6 (12.Nc3 Ne5=) 12...ba6=+ 13.d4 c5 (13...Ne4 14.0–0=) 14.dc5 Nc5 15.0–0 Rb8 16.Nbd2 (16.Rd1 Nce4=) 16...Nfe4=+ 17.Ne4 (17.Rfd1 Bf5 18.Ne4 de4=+) 17...de4 (< 17...Ne4 18.Bd4=; < 17...Re4 18.Bd4 Nb3 19.Rab1 Nd4 20.Nd4+=) 18.Nd4 Qg5 19.Rfb1 Bb7 (19...Bh3 20.Bf1=+) 20.Bc3 Rec8 21.g3 Qd5 (21...Be5 22.Rb6=+) 22.Bg4 (22.Rd1 Nd3 23.f3 Qg5 24.Bd3 Qe3 (< 24...ed3 25.Rd3 Bd5 26.Qd2=) 25.Kf1 ed3 26.Rd3 Qh6=+) 22...Rc7 23.Nf5 Bf8 24.Rb6 Nd3 25.Rab1 g6 26.Nd4 Bc5 27.Qd2 Bb6 28.ab6 Rc5 29.Ba1 Ne5 30.Qb2 Ra5 31.Bd1 Rc8 32.Nb3–/+ Rb5 33.Qe5 Qe5 34.Be5 Re5 35.Nd4 Rd5 (36.Be2 a5–/+) 0–1. Woschkat,Karl_Heinz – Schubert,Frank (1675), DESC, 1998.

8.a4 Bf5 9.a5 Nc4 10.Bc3 =.

8.Be2 0–0 9.0–0 (9.Qc2 Bg4=) 9...Bf5 (9...Re8 10.Qc2=) 10.Nc3 (10.a4 Qe7=) 10...Re8 (10...Nc4 11.Bc1=+) 11.d3= c5 12.bc6 bc6 13.Nd4 (13.Rb1 Rb8=) 13...Bd7 14.Rb1 Rb8 15.Qc2 a6 16.Nf3 (16.Rfc1 c5 17.Nf3 Be6=) 16...c5 17.Rfc1 Qe7 18.h3 Bf5 19.Nh4 Qe5 (19...Be6 20.Nf3=+) 20.Nf3 Qe6 21.Qd2 Nbd7 22.Ba3 (22.Nh4 d4 23.Nd1 Qe5=+) 22...Rb1 23.Rb1 Ne5 24.Ng5 Qd7 (24...Qc8 25.Rc1 Qd7 26.e4 Nd3 27.ef5 Nc1 28.Bc1–/+) 25.e4 (25.Rb6 Be7 26.Ra6 d4=) 25...de4 (25...d4 26.Nd1 Qa4 27.Bc5 Bc5 28.ef5=) 26.de4= Nc4 27.Qc1 Na3 28.Qa3 Be4 29.Nge4 Ne4 30.Ne4 Re4 31.Qa6 Bf8 (31...Re6 32.g3 Be5 33.Rb7=) 32.Bf3 Ra4 33.Qe2 Qe6 (33...Rb4 34.Rd1 Rd4 35.Rd4 Qd4 36.Bc6=) 34.Qe6 fe6 35.Bg4 Ra6 36.Rb7 g6 37.Kf1 h5 38.Be2 Ra2 39.Bc4 Rd2 40.Be6 Kh8 41.Bf7 (41.Ke1 Rd4 42.Ba2 Re4 43.Kf1 Rb4=) 41...Kg7 42.g3 Rd4 43.Ke2 (43.Be6 Kf6 44.Bg8 Be7=) 43…h4 ½–½. Thystrup,Preben – Kern,Guido (2395), corr 3GMM½–09, 1998.

6.Nf3 dc4

7.Na3? c3! 8.dc3 Nb6 9.Nc4 Nc4 10.Bc4 e5 11.h3 (11.e4 Ne4 12.Qd5 Ng5 13.Ng5 Qg5 14.Qf7; 11.0–0? e4 12.Nd2 Bh2) 11...Qe7 12.Qb3 0–0 13.a4 Ne4. Quist – Pedersen, Arhus 1969.

7.Bc4 a6 8.Nc3 =.

7.Bc4 b6 8.0–0 0–0 9.d4 Bb7 (9...a6 10.Nc3=) 10.Nc3 (10.Qe2 Rc8=) 10...Rc8 (10...a6 11.ba6 Ba6 12.Ba6 Ra6 13.Qe2=) 11.Qb3 (11.Rc1 c5 12.d5 ed5 13.Nd5 Re8=) 11...Re8 (11...Bf3 12.gf3 c5 13.Rfd1=) 12.Rac1 (12.Qa4 a6=) 12...c6 (12...Bf3 13.gf3 c5 14.Ne4 Ne4 15.fe4 cd4 16.ed4=) 13.bc6 (13.Rc2 Qe7=) 13...Bc6 14.Nb5 (14.Ba6 Rc7=) 14...Bb5 (14...Bb8!?=) 15.Bb5+= Qe7 (15...Rc7 16.Rc7 Qc7 17.Rc1+=) 16.Rfe1 (16.Qa4 Red8+/–) 16...Red8+= 17.e4 (17.Qa4 a5+=) 17...Rc1= 18.Bc1 Bb4 (18...e5 19.d5=) 19.Bd2 (19.Re2 Rc8 20.Bf4 Nf8+=) 19...Bd2= 20.Nd2 g6 (20...e5 21.Bd7 Rd7 22.d5+=) 21.Nf3 Kf8 22.Qa4+/– Ra8? 23.e5+– a6 24.ef6 Nf6 25.Ng5 h6 26.Nf3 a5 27.Bc6 Rc8 28.d5! Qd8? 29.de6 (29...fe6 30.Re6+–) 1–0. pumpkin (2225) – petre (1960), net–chess.com, 2005.

7.Bc4 0–0

8.0–0 Nb6 9.Be2 Qe7 10.a4 Bd7 11.Qc2 e5 12.e4 Bg4 13.d3 Rfc8 14.Nc3 c6 15.Qb3 (15.Rfd1!?=) 15...Nbd7+= 16.Ba3 Ba3 17.Qa3 Qa3 18.Ra3 Bf3 19.Bf3 Nc5 20.bc6 bc6 21.Ne2 Ne6 22.Rc1 c5 23.h3 Rd8 24.Ng3 g6 25.Nf1 Rac8 26.Rac3 Rd4 27.Ne3 Ra4 28.Nd5 (28.Bg4 Ng4 29.Ng4 a5=) 28...Nd5 29.ed5 Nd4 30.Rc5 Rc5 31.Rc5 Nf3 32.gf3 Rd4 33.Ra5 Rd3 34.Kg2 Kg7 35.Kg3 Rd4 36.Kg2 g5 37.Kg3 Kg6 38.Ra7 Rd5 39.Ra8 h5 40.Ra6 Kf5 41.Ra7 f6 42.Ra6 Rd3 43.Rb6?? (better is 43.Ra4–+) 43...e4 44.Kg2 0–1. Sebesta,Petr (1610) – Maroszczyk,W (1960), 12th Orlova Open A, 2015.

8.0–0 c6 9.bc6 bc6 10.d4 Rb8 11.Qc2 a5 (11...c5 12.Nbd2=) 12.Bd3 (12.Nbd2 c5=) 12...c5 13.Nbd2 Bb7 (13...cd4 14.Bd4 Bb7 15.Nc4=) 14.e4 (14.dc5 Nc5 (< 14...Bc5 15.Bf6 Qf6 16.Bh7 Kh8 17.Be4+/–) 15.Bf6 Qf6 16.Bh7 Kh8=) 14...cd4 15.Bd4 (< 15.Nd4 Nc5–/+) 15...e5 16.Bb2 (16.Bc3 Bb4 17.Bb4 ab4=) 16...Qe7 (16...Nc5 17.Rfd1=+) 17.Nc4= Ra8 (17...Rfc8 18.Rab1=) 18.Nd6 Qd6 19.a4 (19.Rfd1 Rfc8 20.Qe2 Qe6+=) 19...Ba6 (19...Nc5!? 20.Be5 Qd3 21.Qc5 Nd7=) 20.Ba6+= Ra6 (20...Qa6 21.Ne5 Rfc8+=) 21.Qc3 (better is 21.Ba3!? Rc6 22.Bd6 Rc2 23.Bf8 Kf8 24.Rfc1 Rc1 25.Rc1 Ne4 26.Rc7+–) 21...Re8 22.Rfd1 Ne4?? (better is 22...Qc6=) 23.Rd6+– Nc3 (23...Nd6 24.Qc7 Nf8 25.Be5+–) 24.Ra6 Ne2 25.Kf1 Nf4 26.Ra5 Nd3 27.Rd5 N7c5 28.Be5 Ne5 29.Ne5 Nb3 30.Rad1 f6 31.Nc6 h6 32.a5 Kh7 33.a6 Re6 34.Rd6 (34...Re8 35.a7+–) 1–0. gtate (1770) – lancelotrides, net–chess.com, 2001.

8.0–0 Re8 9.d4 =.

8.a4 b6 9.Be2 a5 10.0–0 Nc5 11.d3 Bd7 12.Nbd2 g6 (12...c6!? 13.Nc4 Be7+=) 13.Ne5 Be5 14.Be5 Re8 15.Qc2 Nd5 16.d4 Nb7 17.e4 Nb4 18.Qc7 Qc7 19.Bc7 Nc2 20.Bb6 Na1 21.Ra1 f5 (better is 21...e5+–) 22.e5 Nd8 (22...g5 23.Nb3+–) 23.Nc4 Rc8 (23...Nb7 24.Bf3 Bc8 25.Nd6 Nd6 26.Ba8+–) 24.Na5 (better is 24.Nd6!? Nf7 25.Ne8 Be8 26.Ba5 Ng5+–) 24...Rc2 25.Bf3 Rc3 26.Bc5 Bc8 27.b6 Nb7 (27...Rc2+–) 28.Nb7 Bb7 (28...Rf3 29.Nd6 Rd8 30.gf3+–) 29.Bb7 Rc4 30.a5 Rb8 31.a6 (31...Rd8 32.a7+–) 1–0. Myprisonwobars – mcjustud16, Live Game Caissa's Web, 2004.

8.0–0 b6

9.a4 Bb7 10.d3 c6 (10...a6 11.Nbd2=) 11.Nbd2 Rc8 12.e4 Qc7 13.Re1 (13.Rc1 Ng4 14.h3 Nge5=) 13...e5 (13...Ng4 14.h3 Nge5 15.Qe2=) 14.d4 c5 (14...ed4 15.Bd4 (< 15.Nd4 Bh2 16.Kh1 Be5–/+) 15...Ne5 16.Be5 Be5 17.Rc1 cb5 18.ab5=) 15.de5 (15.d5 Rfd8+=) 15...Ne5 16.Ne5 (16.a5 Rce8+=) 16...Be5= 17.Be5 Qe5 18.Qc2 (18.a5 Ne4 19.Ne4 Be4=) 18...Rcd8 (18...Rfe8 19.f3=) 19.Nf3 (19.a5 Rfe8=) 19...Qe7 (19...Be4!? 20.Ne5 Bc2=+) 20.e5+= Nd5 21.Nd2 Kh8 22.Bd5 Rd5 23.f4 Qe6 24.Ne4 Rd4 25.Ng5+/– Qg6 26.Re2?? Qc2=+ 27.Rc2 Rf4 28.Re2 Rg4 29.Nh3 h6 30.g3 Rd4 31.Nf2 Rfd8 32.Ree1 Bf3 33.Re3 Bh5 34.e6–/+ fe6 35.Re6 R8d7 36.Re3 Bg6 37.Re2 Bf5 38.Re3 Bc2 39.Rea3 Re7 40.R3a2 Re2 41.Ra3 g5 42.R3a2 Rdd2 (43.Rf1 Kg7–+) 0–1. Hasler,Ulrich – Geilen,P, corr ICCF II–GT–20, 1993.

9.d3 Bb7 10.e4 Ng4 11.Nbd2 Qe7 12.Qe2 Rad8 (12...a6 13.a4=) 13.a4 Nge5 14.d4 Ng6 15.g3 (15.a5 c5+=) 15...Bb4 16.Nb3 Nf6 17.Bd3 Rfe8 18.Rfc1 Rd7 (18...Rc8 19.a5+=) 19.a5 Red8 (19...Rc8 20.a6 Ba8 21.Ra4+=) 20.ab6 ab6 21.Ra7 Ba8 22.Rc4 (22.Ra4 Qf8+=) 22...c5= 23.Ra6 cd4 (23...e5 24.d5 (< 24.de5 Ng4=+) 24...Nd5 25.ed5 Bd5 26.Bg6 hg6 27.Rb6+= (27.Qe5 f6 28.Qe7 Re7–+; < 27.Ne5 f6=+)) 24.Nbd4 (better is 24.Bd4!? e5 25.Bb6 Rd3 26.Ra8 Ra8 27.Qd3+/–) 24...Bc5= 25.Bc2 Ng4 26.Rca4 Bb7 27.Nc6 Bc6 28.bc6 Rc7 (< 28...Bf2 29.Kh1 Rc7 30.e5+/–) 29.Nd4 (29.e5!? Nf2 30.Kg2+=) 29...Nf2 30.Kg2 (30.Kf2 e5) 30...e5 31.Qf2 (31.Nb3 Rc6 32.Nc5 Nh4 (32...Qc5 33.Ra8 Rf8 34.Rf8 Nf8 35.Ba3 Qc2 36.Ra8–+) 33.Kf1 Nh3–+) 31...ed4–/+ 32.Bd4 Rc6 33.Bb3?? (better is 33.Bc5 Qc5 34.Qc5 Rc5 35.Bb3 Rd2 36.Kh3–/+) 33...Qe4–+ 34.Kh3 Ne5 (35.Be3 Qe3 (35...Be3?! 36.Re4 Bf2 37.Re5–+) 36.Qe3 Be3–+; 34...Bd4?! 35.Ra8 Rcc8 36.Rc8 Rc8 37.Bf7 Kh8 38.Rd4–/+) 0–1. Lindner,Jan Joost – Rigo,Janos (2345), Arco op, 2000.

9.Nd4 Bb7 =.

9.d4 Bb7

10.Nbd2 a6 A) 11.ba6 Ba6 12.Qc2 (12.Qe2 Bc4 13.Nc4 Ne4 14.Nd6 cd6 15.Nd2 Nd2 16.Qd2) 12...Nd5 13.Ba6 Ra6 14.Nc4 f5 15.Nd6 cd6 16.e4; B) 11.a4 B1) 11...Ng4 12.h3 (12.ba6 Ba6 13.h3 Ngf6 14.a5 ba5 15.Qc2 c5 16.Rfd1) 12...ab5 13.ab5 Ra1 14.Qa1 Ngf6 15.Qa7 Qa8 16.Ra1; B2) 11...ab5 12.ab5 Ra1 13.Qa1 Ne4 14.Ne4 Be4 15.Nd2 Bb7 16.f4.

10.Nbd2 c5 A) 11.h3 A1) 11...Qe7 12.Qc2 (12.Rc1 Rfd8 13.Qc2 cd4 14.Bd4 Rac8 15.Rfd1 Nc5 16.Qb2) 12...Rac8 13.Rac1 cd4 14.Bd4 e5 15.Bb2 Nc5 16.Qf5; A2) 11...h6 12.Be2 (12.Qc2 Rc8 13.Rfd1 Qe7 14.Rac1 cd4 15.Nd4 Nc5 16.Nc6) 12...a6 13.ba6 Ba6 14.Ba6 Ra6 15.Qe2 Ra4 16.Nc4; A3) 11...Qc7 12.Qc2 (12.Qe2 cd4 13.ed4 Bb4 14.Rac1 Qf4 15.Qe3 Bd6 16.Ne5) 12...Rfd8 13.Rac1 a6 14.ba6 Ba6 15.Rfd1 Bb7 16.a4; B) 11.Qc2 B1) 11...cd4 12.Bd4 Qe7 13.Rac1 Rfd8 14.e4 Ba3 15.Rcd1 Nc5 16.e5; B2) 11...Qc7 12.Rac1 (12.h3 Rfd8 13.Rac1 a6 14.ba6 Ba6 15.Ba6 Ra6 16.a4) 12...a6 13.ba6 Ba6 14.Rfd1 Bb7 15.e4 cd4 16.Bd4; B3) 11...Rc8 12.Rac1 Qe7 13.Rfd1 Rfd8 14.Qa4 cd4 15.Bd4 Rc7 16.Be2; C) 11.Rc1 C1) 11...Qe7 12.Qe2 (12.Be2 a6 13.ba6 Ba6 14.Nc4 Ne4 15.Qc2 f5 16.Rfd1) 12...Rac8 13.Rfd1 Rfd8 14.e4 Bc7 15.e5 Nd5 16.Ne4; C2) 11...Rc8 12.Be2 (12.Bd3 cd4 13.Rc8 Qc8 14.Nc4 Qc7 15.Nd6 Qd6 16.Nd4) 12...cd4 13.Nc4 Bf3 14.gf3 Bc5 15.Bd4 Qe7 16.Bb2; C3) 11...a6 12.ba6 (12.a4 ab5 13.Bb5 Qc7 14.dc5 bc5 15.Nc4 Be7 16.Nfe5) 12...Ba6 13.Ba6 Ra6 14.a4 Qc7 15.Nc4 Be7 16.Qc2; D) 11.bc6 Bc6 12.Bd3 (12.Qb3 Qe7 13.Rac1 Rac8 14.Bb5 Bd5 15.Qa4 a5 16.Ne5) 12...b5 13.a4 b4 14.e4 Be7 15.Qe2 Rc8 16.Rfc1.

10.Nbd2 c6 A) 11.Rc1 A1) 11...Qe7 12.h3 (12.g3 c5 13.Qc2 a6 14.ba6 Ba6 15.Rfd1 Nd5 16.Ne4) 12...c5 13.Qc2 a6 14.ba6 Ba6 15.dc5 Nc5 16.Ng5; A2) 11...c5 12.Bd3 (12.Qc2 a6 13.ba6 Ba6 14.Ba6 Ra6 15.Nc4 Bc7 16.dc5) 12...a6 13.ba6 Ba6 14.Nc4 Bc4 15.Bc4 Qc7 16.Qd3; A3) 11...Rc8 12.bc6 (12.Qb3 Qe7 13.bc6 Bc6 14.Bb5 Bd5 15.Qa4 a5 16.Nc4) 12...Bc6 13.Ba6 Rc7 14.Bd3 Qe7 15.Ne5 Bb7 16.Ndc4; B) 11.h3 B1) 11...Qe7 12.Rc1 (12.bc6 Bc6 13.Ba6 Nb8 14.Bd3 Nbd7 15.e4 Ba3 16.Ba3) 12...Rac8 13.Qe2 cb5 14.Bb5 Ne4 15.Ne4 Be4 16.Ba6; B2) 11...c5 12.Qc2 (12.Rc1 a6 13.ba6 Ba6 14.Qe2 b5 15.dc5 Nc5 16.Bb5) 12...Rc8 13.Rac1 Qe7 14.Rfd1 cd4 15.Bd4 Rfd8 16.Qa4; B3) 11...Rc8 12.bc6 (12.Qb3 cb5 13.Qb5 Bc6 14.Qb3 Qe7 15.Ba6 Rc7 16.Rac1) 12...Bc6 13.Ba6 Rc7 14.Rc1 Qe7 15.Ne5 Be5 16.de5; C) 11.g3 C1) 11...c5 12.Qc2 (12.Rc1 a6 13.ba6 Ba6 14.Qc2 b5 15.Be2 g6 16.dc5) 12...Rc8 13.Rfd1 cd4 14.Bd4 e5 15.Bb2 e4 16.Ng5; C2) 11...Qe7 12.bc6 (12.Rc1 c5 13.Qc2 cd4 14.Bd4 Rfd8 15.Rfe1 h6 16.e4) 12...Bc6 13.Rc1 Rac8 14.Ba6 Rc7 15.Nc4 h6 16.Nfe5; C3) 11...Rc8 12.bc6 (12.Qb3 cb5 13.Bb5 a6 14.Bd3 b5 15.e4 Qa5 16.Rfc1) 12...Bc6 13.Ba6 Rc7 14.Rc1 h6 15.Qe2 Qe7 16.e4; D) 11.Qb3 D1) 11...Qe7 12.Rac1 (12.bc6 Bc6 13.Rac1 Rfc8 14.h3 Ne4 15.Ne4 Be4 16.Nd2) 12...Rac8 13.bc6 Bc6 14.Bb5 Bb5 15.Qb5 Bb4 16.Qa6; D2) 11...cb5 12.Qb5 (12.Bb5 a6 13.Bd3 b5 14.a4 Bd5 15.Qd1 Bc6 16.ab5) 12...Qe7 13.Rac1 a6 14.Qb3 b5 15.Bd3 Rac8 16.e4; E) 11.a4= E1) 11...Qc7 12.bc6 Bc6 13.Rc1 Ng4 14.h3 Nh2 15.Bb5 Nb8 16.Nh2; E2) 11...Qe7 12.Bd3 (12.Qc2 Rac8 13.Rfc1 c5 14.a5 cd4 15.Nd4 Bb4 16.ab6) 12...c5 13.Nc4 Bc7 14.Nfe5 Ne5 15.de5 Nd5 16.Qg4; E3) 11...c5 12.Qc2 (12.Qe2 Rc8 13.Rfd1 cd4 14.Bd4 e5 15.Bb2 Qe7 16.a5) 12...Rc8 13.Rac1 Qe7 14.Rfd1 Rfd8 15.h3 h6 16.dc5.

10.Nbd2 Ne4 11.Be2 (11.Ne4 Be4 12.Rc1 (12.Bd3 f5 13.Bc4 Qe7 14.Qb3 Rfe8 15.Rac1 Rac8 16.Ne1) 12...a6 (12...Qf6 13.Bd3 Qf5 14.Be4 Qe4 15.Qe2 Nf6 16.Ne5) 13.ba6 c6+= (13...h6 14.Nd2 Bg6 15.Qa4 Ra7 16.Bb5) 14.Nd2 Bd5 15.Bd3 f5 16.a4) 11...Qf6 (11...Nd2 12.Qd2 (12.Nd2 a6 13.ba6 Ba6 14.Ba6 Ra6 15.Nc4 Nf6 16.Qb3) 12...Nf6 13.Qc2 a6 14.a4 h6 15.Ne5 Be4 16.Qc4; 11...Ndf6 12.Ne4 (12.Qc2 Nd2 13.Nd2 a6 14.a4 h6 15.f4 Bb4 16.Nc4) 12...Ne4 13.Qc2 f6 14.h3 Bd5 15.Rad1 Rc8 16.Bd3) 12.Nc4 (12.Ne4 Be4 13.Nd2 Bb7 14.Nc4 Qg5 15.g3 Be7 16.a4) 12...Qh6 (12...Bd5 13.Rc1 Rfc8 14.Qc2 c6 15.Nd6 Nd6 16.bc6) 13.Nd6 (13.Rc1 Be7 14.h3 Rfd8 15.Qc2 a6 16.Nce5) 13...cd6 14.Rc1 Rac8 (14...Ndf6 15.a3+= (15.Rc7 Bd5 16.Qc2) 15...Rfc8 16.Rc8) 15.Qd3 (15.Qa4 Ng5 (15...Qh5 16.Qa7) 16.Rc8+/– (16.Nd2 Qg6+/–)) 15...Ndf6= 16.Rc8 (16.h3=) 16...Rc8 17.Rc1 Rc1 18.Bc1 Qg6 (18...Ng5!? 19.Qc2 Ne8+=) 19.Ne1 Qf5 (better is 19...Nd5!? 20.Qa3 Bc8+/–) 20.f3+– Ng4 (20...Ng5 21.h4 Nge4 22.fe4 Ne4 23.Nf3+–) 21.Qc2 h5 (21...h6 22.Qc7 Bd5 23.Bd3+–) 22.Bd3 Qg6 (22...Ngf2 23.Qf2! Nf2 24.Bf5 ef5 25.Kf2+–) 23.fg4 (23.fe4!? e5 24.d5 f6+–) 23...Qg4 24.Qe2 (better is 24.Nf3!? Bd5+–) 24...Qe2 25.Be2 Nc3 (25...Bd5 26.a3+–) 26.Kf1 (26.Bh5 Nb5 27.Bd2 Kf8+–) 26...Na2 27.Ba3 d5 28.Bh5 Nc3+/– 29.Be2 Bc8 30.Bd6 Ne2 31.Ke2+– Bd7 32.Bb8 Bb5 33.Kd2 a5 34.Ba7 a4 35.Bb6 a3 36.Ba5 a2 37.Bc3 Kh7? 38.Nd3 Kg6 39.Ne5 Kf6 40.Kc2 Ke7 41.Kb2 f6 42.Bb4 Ke8 43.Nf3 1–0. Cottarelli,Franco (1970) – Rezzuti,Vincenzo (2075), Open Salsomaggiore ITA, 2006.

10.Nbd2 Qe7 A) 11.Qa4 A1) 11...Rfc8 12.Bd3 (12.Be2 c6 13.Rac1 cb5 14.Qb5 a6 15.Qd3 h6 16.h3) 12...c6 13.Rac1 cb5 14.Qb5 a6 15.Qg5 h6 16.Rc8; A2) 11...Ne4 12.Ne4 (12.Bd3 Nd2 13.Nd2 Qg5 14.g3 Nf6 15.Ba3 Ng4 16.Bd6) 12...Be4 13.Nd2 Bb7 14.f4 Nf6 15.Nf3 Nd5 16.Rfe1; A3) 11...e5 12.Be2 (12.g3 e4 13.Nh4 g6 14.Be2 Nd5 15.Nc4 a6 16.Nd6) 12...ed4 13.Nd4 Nc5 14.Qc2 g6 15.Rad1 a6 16.Nc6; B) 11.Ne5 B1) 11...Nd5 12.Nc6 (12.e4 Nf4 13.Qg4 Be5 14.de5 Qb4 15.Rab1 Qd2 16.Rfd1) 12...Qg5 13.Ne4 Bh2 14.Kh2 Qh4 15.Kg1 Qe4 16.Bd3; B2) 11...Bb4 12.Bd3 (12.Qe2 Ne5 13.de5 Nd5 14.Ne4 c6 15.a3 Bc5 16.Nc5) 12...Ne5 13.de5 Nd5 14.a3 Bc5 15.Qe2 Rfd8 16.Ne4; B3) 11...a6 12.ba6 Ba6 13.Nc6 Qe8 14.Ba6 Ra6 15.Nc4 Qa8 16.N6e5; C) 11.Qc2 a6 (11...h6 12.e4 e5 13.Rfe1 Kh8 14.Nh4 ed4 15.Nf5 Qe5 16.Nf3) 12.a4 (12.ba6 Ba6 13.e4 e5 14.Rfe1 Bb7 15.Bb5 c6 16.Bc6) 12...h6 13.ba6 Ba6 14.a5 b5 15.Bd3 Nd5 16.Be2; D) 11.Qe2 e5 (11...c6 12.bc6 Bc6 13.Ba6 Ba3 14.Ba3 Qa3 15.Rfc1 Qa4 16.h3; 11...c5 12.bc6 Bc6 13.Ba6 Nd5 14.Rac1 Nb4 15.Bc4 Rac8 16.e4) 12.e4 (12.g3 e4 13.Nh4 g6 14.f3 ef3 15.Nhf3 Rae8 16.Rae1) 12...Rae8 13.d5 Nc5 14.a4 h6 15.a5 Ra8 16.h3.

10.Nbd2 h6 A) 11.Ne5 a6 12.ba6 (12.Nc6 Qc8 13.a4 ab5 14.ab5 Ra1 15.Qa1 Qa8 16.Qa8) 12...Ba6 13.Nc6 Qc8 14.Qc2 Qb7 15.Ba6 Ra6 16.Ne4; B) 11.Qa4 B1) 11...Qc8 12.Bd3 (12.Qc2 c6 13.Qd3 a6 14.a4 ab5 15.ab5 Ra1 16.Ra1) 12...a6 13.ba6 Ba6 14.Nc4 Nd5 15.Qb3 Bc4 16.Qc4; B2) 11...a6 12.ba6 Ba6 13.Ba6 Nb8 14.e4 Bf4 15.Qc4 Na6 16.a4; C) 11.Qe2 Ne4 (11...Re8 12.Ne5 Qc8 13.a4 a6 14.Ndf3 a5 15.Nc6 Nb8 16.Nb8; 11...Qe7 12.Ne5 Nd5 13.Ne4 Ne5 14.de5 Ba3 15.Ba3 Qa3 16.Rfd1) 12.Bd3 (12.Ne4 Be4 13.Ne5 Ne5 14.de5 Bc5 15.f3 Bb7 16.Rad1) 12...Ndf6 13.Nc4 Qe7 14.Rac1 Bd5 15.Nfe5 Bb4 16.f3.

7.Bc4 Nb6

8.Bb3 0–0 9.Nc3 Nbd5 10.Nd5 Nd5 11.Bd5 ed5 12.h3 Bf5 13.a4 Re8 14.Rc1 a6 15.0–0 ab5 16.ab5 Bd3 17.Re1 Bb5 18.Qb3 Qd7 19.Qc3 f6 20.d4 (20.d3 c5–/+) 20...b6 21.Ra1 c5 22.Qc2 Bc6 23.Red1 (better is 23.Ra8!? Ra8 24.dc5 bc5 25.Ra1–+) 23...Ba4–+ 24.Ra4 Qa4 25.Qb1?! (25.Qa4 Ra4 26.dc5 bc5 27.Rd5–+) 25...c4 26.Ne1 (26.Rc1 Qa2 27.Bc3 Qb1 28.Rb1 Reb8–+) 26...b5 27.Qc1 (27.Rc1 Qb3–+) 27…c3 (28.Bc3 Rac8–+) 0–1. Engles,Michael – Wiltenburg,Fred, CD.2002.0.00025, 2002.

8.d3 a6 9.ba6 ba6 10.Nbd2 0–0 11.0–0 Qe7 12.Bf6 Qf6 =.

8.d3 Nc4 9.dc4 a6 10.Be5 Bb4 11.Nbd2 ab5 12.cb5 Ne4 =.

8.d3 Bd7 9.Ne5 Nc4 10.dc4 0–0 11.Qf3 a6 12.a4 Qb8 =.

8.Be2 a6 9.ba6 ba6 10.0–0 Bb7 11.Nc3 0–0 12.d3 Rb8 =.

8.Be2 a6 9.Nc3 ab5 10.Nb5 Be7 11.Be5 Nbd5 12.Qb1 c6 =.

8.Be2 a6 9.Bd4 Nbd5 10.ba6 b6 11.e4 Ne4 12.Bg7 Rg8 =+.

8.Be2 a6 9.Bf6 Qf6 10.Nc3 Qg6 11.0–0 e5 12.ba6 ba6 =+.

8.Be2 Nbd5 9.0–0 0–0 10.Nc3 a6 11.ba6 b6 12.Nb5 Be7 =.

8.Be2 Nbd5 9.Na3 0–0 10.Nc4 Be7 11.0–0 a6 12.ba6 b6 =.

8.Be2 Nbd5 9.Nc3 Nc3 10.Bc3 0–0 11.Qc2 Nd5 12.0–0 Nc3 =.

8.Be2 Nbd5 9.Be5 a6 10.ba6 ba6 11.Nc3 Rb8 12.e4 Be5 =.

8.Be2 Qe7 9.d4 0–0 10.0–0 Bd7 11.a4 a6 12.ba6 ba6 =.

8.Be2 Qe7 9.Be5= 0–0 10.d4 a6 11.ba6 ba6 12.0–0 Bb7 =.

8.Be2 0–0

9.0–0 a6 10.ba6 ba6 11.d3 Rb8 12.e4 Nbd5 13.Qd2 Bf4 14.Qc2 Nb4 15.Qc3 Nc6 16.Bc1 Bc1 17.Rc1 (worse is 17.Qc1 Qd6+=; 17.Qc6? Bb2 18.Nbd2 Ba1 19.Ra1 Nh5–/+) 17...Rb6 18.Nbd2 Bd7 19.a4 a5 20.Nc4 Ra6 21.Nce5 Ne5 22.Ne5 h6 23.Qc7 1–0. Deschamp,Guy (2305) – Poulsen,Rene (2080), IECG, 2004.

9.0–0 a6 10.Nc3 e5 11.ba6 ba6 12.Qc2 Qe7 =.

9.0–0 Nbd5 10.Be5 a6 11.d4 ab5 12.Bb5 Bd7 =.

9.0–0 Nfd5 10.Nc3 Nc3 11.Bc3 Nd5 12.Qc2 a6 =.

9.0–0 Bd7 10.a4 a5 11.d4 c6 12.Nbd2 Bb4 13.Ne5 cb5 14.Nd7 Qd7 15.Bb5 Qe7 16.Qe2 Nfd5 17.Rfc1 Rac8 18.Qd3 Nc7 19.Nb3 f5 20.Nc5 Nb5 21.Qb5 Nd5 22.Nd3 (22.Nb7? Rb8–+) 22...Nc3 (better is 22...Rfd8!?=) 23.Bc3+/– Bc3 24.Rab1 Rc7 25.g3 (25.Qb3 Rfc8+/–) 25...Rfc8+= 26.Qb6 Kf7 27.Rb5 g5 28.Rcb1 Bd2 29.d5 ed5 30.Rd5 Qe4 31.Qb5 Kf6 (31...Kg8 32.Rd1 Bb4 33.Nb4 ab4 34.R5d4+–) 32.Rd6 (32.Rd1 Bb4+–) 32...Ke7 (32...Kg7 33.Rd7 Kg8 34.Qb3 Qc4 35.Rd5+/–) 33.Rh6 Rh8? (better is 33...Kf8 34.Rf6 Kg8 35.Qf5 Qf5 36.Rf5 h6+–) 34.Qb6 Kd7 35.Nc5 Rc5 36.Qd6 Kc8 37.Qc5 Kb8 38.Rb7!! Kb7 (38...Qb7 39.Qe5) 39.Rb6 (39...Ka8 40.Qb5 Qh1 41.Kh1 Be3 42.Qa5) 1–0. Jacobi,KH – Gerber,K, corr, 1975.

9.0–0 Bd7 10.d4 Rc8 11.Ne5 c6 12.a4 Nbd5 =.

9.0–0 Qe7 10.Qc2 e5 11.d4 e4 12.Ne5 Be6 13.Nc3 Nbd5 14.Ne4 Nb4 15.Qb1 Ba2 16.Ra2 Na2 +=.

9.0–0 Qe7 10.d4 Bd7 11.Ne5 Be5? (better is 11...Rac8= 12.Nc3 Rfd8 13.Rc1 Bb5 14.Bb5 Be5 15.Qf3 Bd6 16.Qb7 c5=) 12.de5+/– Nfd5 13.Ba3 Nb4 (13...Qg5 14.Bf8 Qe5 15.Bg7 Kg7 16.Na3+/–) 14.Qd4 Nc2?? (better is 14...N6d5 15.Rc1 a5+/–) 15.Be7 Nd4 16.ed4 Rfe8 17.Bb4 Nd5 18.Bd2 Rac8 19.Nc3 c6 20.Nd5 cd5 21.Rfc1 Rcd8 (21...f6 22.Bd3+–) 22.Rc7 Bc8 23.Rac1 h6 24.Bb4 Bd7 (24...g6 25.b6! Bd7 26.ba7+–) 25.f4 (25.Rb7 Bb5 26.Bb5 Rb8+–) 25...f5 (25...Rc8 26.Kf2+–) 26.Bh5 (better is 26.Rb7 Rc8 27.Rc8 Bc8 28.Ra7 Kh7+–) 26...Rf8 (26...Bb5 27.Rb7 Bc4 28.Be8 Re8 29.Ra7 h5+–) 27.Bf8 Kf8 28.Rb7 (better is 28.Rd7!? Rd7 29.Rc8 Rd8 30.Rd8 Ke7+–) 28...Ke7 29.Rcc7 g5 30.Ra7 gf4 31.a4 (31.a4 f3 32.Bf3+–) 1–0. yoto_yotov (1815) – aga2013 (1770), gameknot.com, 2014.

9.0–0 Qe7 10.Be5 Be5 11.Ne5 Nfd7 12.Nd7 Bd7 13.Nc3 c6 14.d4 cb5 15.Nb5 Bc6 16.Qd3 Qg5 =.

9.0–0 Qe7 10.Be5 Be5 11.Ne5 Nfd7 12.Nf3 e5 =.

9.0–0 Qe7 10.Ne5 Nfd5 11.d4 f6 12.Nc4 Nc4 13.Bc4 Bd7 14.Qf3 c6 15.a4 Rac8 16.Rc1 Rc7 =.

9.0–0 Qe7 10.Bf6 Qf6 11.Nc3 Bb4 12.Qc2 e5 13.Qb2 Bd6 14.d4 Bf5 15.de5 Be5 16.Ne5 Qe5 =.

9.Qc2 Nbd5 10.e4 Nb4 11.Qc3 e5 12.a3 Ne4 =.

9.Qc2 Bd7 10.e4 Bf4 11.a4 Rc8 12.a5 Na8 +=.

9.Qc2 Nbd7 10.0–0 Re8 11.d4 e5 12.Nbd2 Qe7 +=.

9.Qc2 Qe7 10.d4 Bd7 11.e4 Bb4 12.Bc3 Rfc8 =.

9.Qc2 Re8 10.Be5 a6 11.ba6 ba6 12.d4 Bb7 =.

8.Be2 Bd7

9.0–0 0–0 10.a4 (10.d4 Rc8 11.Ne5 c6 12.a4 Nbd5=) 10...c6 (10...a6 11.ba6 ba6 12.Nc3 Nbd5=) 11.Ba3 Qe7 (11...Qc7 12.d4 Rfc8=) 12.Bd6 (12.d4 Rfc8=) 12...Qd6 13.Nc3 (13.d4 Rfc8=) 13...Nbd5 (13...cb5 14.Nb5 Bb5 15.ab5=) 14.Nd5 (14.e4 Nc3 15.dc3 Qc7+= (15...Ne4? 16.Qd6 Nd6 17.Rfd1+–)) 14...Nd5= 15.Qb3 Rfb8 (15...cb5 16.ab5 a6 17.Rfc1=) 16.Nd4 (16.Qd3 Qe7=) 16...a6 17.Rfc1 e5 18.Nf3 ab5 (18...e4 19.Nd4=) 19.ab5= Ra1 (19...e4 20.Nd4=) 20.Ra1 cb5 21.Bb5 Bb5 (21...e4 22.Bc4 ef3 23.Bd5 fg2 24.Bf7 (< 24.Bg2 Bc6=) 24...Kh8 25.d4= (< 25.Kg2 Bc6 26.e4 Be4 27.Kg1 Qf6–+)) 22.Qb5 f6 (22...e4 23.Nd4=) 23.Qc4 (better is 23.d4+=) 23...Kf8 (23...b5 24.Qb3 Qe6 25.d3=) 24.Rc1 (24.Qd3 e4 25.Qe4 Kg8+–) 24...b5 (better is 24...Qc6 25.Qc6 bc6=) 25.Qc5?? (better is 25.Qd3 Qe6 26.Qh7+/–) 25...Qc5=+ 26.Rc5 b4 27.Rd5?? (better is 27.d4 b3 28.Nd2–/+) 27…b3–+ 0–1. hal1958 – joao_cxv, playchess.de, 2002.

9.0–0 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 c5 13.Nc3 Qc7 14.Na4 Nbd5 15.Qb3 Ng4 16.h3 Ngf6 17.Rc1 0–0 18.d4 b6 19.Nd2 (19.dc5 bc5 20.Nc5 Rc8 21.Bf6 Nf6+=) 19...Ra8= 20.Nc4 Bh2 21.Kf1 Ne4 22.Bf3 Qa7 (22...Nd6 23.dc5 bc5 24.Nc3 Nc4 25.Qc4+=) 23.Be4 (23.Nc5 Qa1 24.Ra1 Ra1 25.Ke2 Nec3 26.Kd3 bc5 27.Bd5 Na2+/–) 23...Qa4+= 24.Qa4 Ra4 25.Bd5 ed5 26.Nb6 Bb5 27.Ke1 Ra2 28.Nd5 (28.dc5?? Bg1 29.Bb2 Rb2–+) 28...Re2 29.Kd1 Rf2 30.Rc5 (< 30.dc5 Ba4 31.Ke1 Bg3–+) 30...Ba4 (30...Bd7!? 31.Nb6 Be6+=) 31.Ke1+/– Rc2 32.Ra5 Bg3 33.Kf1 (33.Kd1 Ra2 34.Kc1 Bb3 35.Ra2 Ba2 36.Ne7 Kf8+/–) 33...Bc6 (better is 33...Be8!?+=) 34.Ne7+– Kf8 35.Nc6 Rc6 36.Ke2 Rc2 37.Kf3 Be1 38.Ra8 Ke7 39.d5 Rf2 40.Ke4 f5? (better is 40...Rg2 41.Ra7 Ke8+/–) 41.Ke5+– Rg2 42.Ra7 Ke8 43.Kf5 Rg3 (43...Bf2 44.Rg7 Rg7 45.Bg7 Be3 46.Ke6+–) 44.e4 Rh3 45.Bg7 Bf2 46.Rb7 Kd8 47.d6 (47...Rd3 48.Ke6+–) 1–0. Wolf,M – Schulze,Wilhelm, corr DDR–ch M613, 1978.

9.0–0 c6 10.a4 0–0 11.Ba3 Qe7 12.d4 Nbd5 =.

9.Ba3 e5 10.d4 e4 11.Ne5 Be6 12.0–0 Qe7 =.

9.d4 0–0 10.0–0 Rc8 11.Ne5 c6 12.a4 Nbd5 =.

9.Be5 a6 10.ba6 ba6 11.0–0 Nbd5 12.Nc3 0–0 =.

9.Ne5 Nbd5 10.0–0 0–0 11.d4 a6 12.ba6 ba6 =.

7.Bc4 e5

8.0–0 0–0 9.Nc3 Qe7 10.Qc2 Nb6 11.Bd3 h6 12.Rfc1 Bg4 13.Ne1 Rae8 14.a3 Bc8 15.Bf5 e4 16.Bc8 Rc8 17.d3 Rfe8 18.Ne4 Ne4 19.de4 Qe4 20.Nf3 Qc2 21.Rc2 Re4 22.Bd4 Ra8 (22...c5 23.bc6 bc6 24.a4=+) 23.Nd2 Re7 24.Nc4 (24.Bb6 ab6 25.Nc4 Bc5+=) 24...Nc4= 25.Rc4 a6 26.b6 c6 27.a4 Rd8 28.f4 (28.a5 Red7=) 28...Red7 29.g3 f6 30.Kg2 Kf7 31.Rac1 (31.f5 h5=) 31...Ke6 32.R1c2 g6 33.Kf3 f5 34.h4 h5 35.Ke2 Be7 36.Be5 Rd5 37.Bc7 R8d7 (better is 37...Re8!?=) 38.Rc6!+/– Kf7 (38...bc6 39.b7) 39.R6c4 Ke6 40.Be5 Bd8 41.Rc7 Be7 42.Rd7 Rd7 43.Rc4 Bd8 44.Bc7 Bf6 45.Bb8 (45.Rc6 Kf7+/–) 45...Bd8+= 46.Bc7 (46.Ba7 Rd6+=) 46...Bf6+/– 47.Rc6 Ke7 48.Rc5 Ke6 49.Be5 Bd8 50.Bd4 Rd5 51.Rc8 Kd7 52.Rb8 Kc6 53.a5 Rd7 54.Rc8 Kd5 (54...Kb5 55.Bc3+/–) 55.Kd3+– (½–½). Krotki,Jan – Kristiansen,Jens, Wch U20 prel–D, 1969.

8.d3 =.

7.Bc4 Qe7

8.0–0 0–0 9.Nc3 e5 10.d3 Nb6 11.Bb3 Bg4 12.h3 Bh5 (12...Be6 13.a4=) 13.e4 (13.g4 Bg6=) 13...Rad8 (13...a6 14.a4=+) 14.Qe2 Bf3 15.Qf3 Ba3 16.Rab1 Bb2 17.Rb2 Rd7 18.Qe3 Rfd8 19.Bc2 Nh5 20.g3 Rd6 21.Kh2 Rh6 22.a4 Qe6 23.Kg2 (better is 23.Qf3!?–/+) 23...Ng3!–+ 24.Qg3 (24.Kg3 Qh3) 24...Rg6 25.Bb3 Qd6 (25...Rg3?! 26.fg3 Qd6 27.Rf7–/+) 26.Kh2 (26.a5 Nd7–+) 26...Rg3 27.fg3 Qd3?? (better is 27...Rf8 28.Rbf2 Qa3 (< 28...Qd3 29.Rf7 Rf7 30.Rf7–/+) 29.Bf7 Kh8–+) 28.Rd1+/– g6 (28...Qd1!? 29.Nd1 c5+/–) 29.Rd3+– Rd3 30.Nd5 ½–½. Mueller,Klaus – Altrock, corr ICCF EU–M–283, 1973.

8.d4 Bh2 9.Rh2 Qb4 10.Nbd2 Qb2 11.Qc1 =.

8.d4 h6 9.Qb3 (9.0–0 0–0+=) 9...0–0 10.Nbd2 (10.0–0 a6=) 10...e5 (10...a6 11.ba6 ba6 12.Rb1=) 11.0–0+= e4 (11...ed4 12.Bd4 Rd8 13.Rfd1+=) 12.Nh4 Nb6 (better is 12...Kh7!? 13.Nf5 Qe8+/–) 13.Ng6+– Qe8 14.Nf8 Qf8 15.d5 Qe7 16.Bf6 gf6 (16...Qf6 17.Ne4 Bh2 18.Kh2 Qh4 19.Kg1 Qe4 20.Rac1+–) 17.f4 (17.a4 Bg4+–) 17...f5 (17...ef3 18.Rf3 Bg4 19.Rff1+–) 18.Be2 (18.a4 Bb4 19.Rfd1 Qc5+–) 18...Bc5 19.Rad1 Bd7 (19...c6 20.dc6 bc6 21.bc6+–) 20.a4 (20.Nc4 Nc4 21.Bc4 Qd6+–) 20...a5 (20...c6 21.dc6 bc6 22.Nc4+–) 21.Nc4 Nc4 22.Bc4 b6 23.g3 Qf6 24.Kf2 Kf8 25.Rd2 Ke7 26.Qb2 Qb2 27.Rb2 h5 28.h4 Kf6 29.Rc2 Bd6 30.Rfc1 Rc8 31.Be2 Kg6 32.Rc4 Kh6 33.Bf1 Kg6 34.Bh3 Kh6 35.Re4 fe4 36.Bd7 Rd8 37.Bf5 Re8 38.Rc4 Bc5 39.Re4 Re4 40.Be4 Be7 41.Kf3 Bd6 42.Bf5 f6 43.g4 hg4 44.Kg4 Bc5 45.e4 Bd4 46.h5 1–0. Diener,Rudolf – Purschwitz, corr ICCF EU–H–GT–25, 1970.

6.Nf3 c6

7.a4 a5 8.Nc3 (8.d4 dc4 9.Bc4 0–0=) 8...0–0 9.Be2 (9.d4 dc4 10.Bc4 Nb6=) 9...e5 (9...dc4 10.bc6 bc6 11.Bc4=+) 10.d4 (10.cd5 Nd5 11.Ne4 Bc7=) 10...dc4 (10...e4 11.Ng5=+) 11.Bc4 (11.bc6 bc6 12.Rb1 Rb8=+) 11...ed4 (11...e4 12.Nd2 Nb6 13.bc6 bc6 14.Bb3=) 12.Qd4= Bc5 (12...Nb6 13.Bd3=) 13.Qh4+= Nb6 14.Be2 (14.Rd1 Nfd5 15.Qd8 Rd8 16.Nd5 cd5=) 14...Qe7 (14...Nfd7 15.bc6 Qh4 16.Nh4 bc6 17.Nf3=) 15.0–0+= Re8 (15...cb5 16.Nb5 Nfd5 17.Qg3+=) 16.Nd4 Bd4 17.Qd4 (17.ed4 Qb4 18.Rfb1 Bf5 19.bc6 Bb1 20.Rb1 bc6–+) 17...c5 18.Qf4 Be6 19.Rfd1 Rad8 20.Ne4 (20.Rac1 Nfd5 21.Nd5 Rd5 22.Rd5 Bd5+=) 20...Ne4 21.Qe4 Nd5 (21...f6 22.Bc3 Rd1 23.Rd1+=) 22.Bd3 g6 (22...f5 23.Qf3+=) 23.Bc4 Qg5 (better is 23...Bf5 24.Qe7 Ne7+=) 24.Bd5 (better is 24.Qf3+/–) 24...Bd5=+ 25.Rd5 (better is 25.h4!? Re4 26.hg5=+). Melich,Jindrich – Bochnicka,Vladimir, CSR–ch Praha, 1992.

7.a4 Bb4 8.Qb3 (8.Bc3 Bc3 9.Nc3 e5=) 8...Ba5 (8...Qe7 9.Be2=) 9.Ba3 (9.Be2 dc4 10.Qc4 cb5 11.ab5 Bc7=) 9...Bb6 (9...Qb6 10.Be2=) 10.d4 (10.Nc3 Ne4=) 10...c5 (10...Ba5 11.Nbd2=) 11.Be2 (11.Nbd2 cd4 12.ed4 Ba5=) 11...0–0 (11...Ba5 12.Nbd2 dc4 13.Bc4 cd4 14.0–0 Bd2 15.Nd2 de3 16.Be6+–) 12.0–0 (12.Nc3 dc4 13.Qc4 Ba5 14.dc5 Ne4+=) 12...Re8= 13.Nc3 dc4 (13...cd4 14.ed4 dc4 15.Bc4+=) 14.Bc4 (14.Qc4 cd4 15.Nd4 Ba5+=) 14...cd4 15.ed4 Bc7 (15...a6 16.Rfe1+=) 16.d5 (16.Rfe1 Nb6+=) 16...Nf8 (16...Ne5!? 17.Ne5 Be5=) 17.Rad1+= N6d7 (17...ed5 18.Nd5 Nd5 19.Rd5 Qf6+/–) 18.de6 (18.Rfe1 Ba5+–) 18...Ne6 19.Rfe1 Ba5? (better is 19...Kh8+–) 20.Re5 (better is 20.Be6 fe6 21.Re6+–) 20...Bc3 (better is 20...Ne5!? 21.Rd8 Nf3 22.gf3 Rd8=+) 21.Qc3= Qf6 (21...Ne5 22.Rd8 Nf3 23.Qf3 Nd8 24.Bb2 Re1 25.Bf1+=) 22.Re6 (better is 22.Re3!?+/–) 22...fe6= (22...Qc3?? 23.Re8 Nf8 24.Rf8; < 22...Re6 23.Qf6 Nf6 24.Ng5+=) 23.Qf6 (23.Bb2 Qc3 24.Bc3 Nb6=) 23...gf6=+ 24.Nd4 (24.a5 Kg7=+) 24...Nb6 25.Bb3 Nd5 26.Nf5 ef5 27.Bd5 Kg7 28.Kf1 Rb8 29.Bd6 Ra8 30.a5 Bd7 31.Bb7? Bb5–+ 32.Kg1 Rad8 33.g3? Rd7 34.a6 Re6 35.Rd5 Ba6 36.Bf8=+ Kf8 37.Rd7 Re1 38.Kg2 Bb7 39.Rb7 Ra1 40.Rh7+/– Kg8 41.Rb7 a5 42.Ra7 a4 43.h4 a3 44.Kf3 Ra2 45.Ra5 Kf7+= 46.Rf5 Kg6 47.Ra5+/– f5 48.Ke3+– Ra1? 49.Kf4 a2 50.f3 Kg7 51.Kf5 Rg1 52.Ra2 Rg3 53.f4 Rh3 54.Kg4 Rh1 55.Ra3 Rb1 56.Ra5 Rb4 57.Kg5 Rb1 58.Ra7 Kf8 59.Kf6 Rb6 60.Kg5 (60...Rb1 61.h5+–; better is 60.Kf5+–) 1–0. Nielsen,Joergen Axel – Soerensen,JH, Randers, 1974.

7.Nc3 Nb6 8.cd5 cd5 9.Be2 =.

7.Nc3 Qc7 8.d4 dc4 (8...0–0 9.c5 Be7 10.Bd3=) 9.Bc4 Bb4 (9...0–0 10.Rc1=) 10.bc6 (10.Qb3 cb5 11.Qb4 Qc4 12.Qb5 Qc7+=) 10...Qc6 11.Qd3 (11.Qb3 Nb6 12.Bd3 Nbd5+/–) 11...Qe4 (11...a6 12.0–0+=) 12.0–0 (12.a3 Ba5+=) 12...Qd3 13.Bd3 Bc3 14.Bc3 b6 15.Bb4 (15.e4 Bb7 16.Rfe1 Rc8+/–) 15...Bb7 (15...a5 16.Bd6+=) 16.Rfc1 (16.Nd2 Nd5 17.Ba3 a5+/–) 16...Bf3 (16...Be4 17.Be2+=) 17.gf3 h5 (17...Kd8 18.Bd6 a6 19.Rc6+/–) 18.Bd6+/– h4 (18...g5 19.Rc7 Kd8 20.Rb7+/–) 19.Ba6 Nd5 (19...g5 20.Bb7 Rd8 21.Bc7+–) 20.e4+– Ne7 21.Bb7 Rd8 22.Bc7 Rh5 (22...Ng6 23.Bd8 Kd8 24.Rc8 Ke7 25.Rc7+–) 23.Bd8 (23.f4 Ra5+–) 23...Kd8 24.Rd1 (24.Rc2 Ra5+–) 24...Rg5 (24...Ra5 25.d5+/–) 25.Kh1 Ra5 26.d5 (26.Rd2 Kc7 27.Ba8 Kb8+/–) 26...Ra3 (26...ed5 27.Bd5 Nd5 28.Rd5 Rd5 29.ed5+/–) 27.de6 fe6 28.Rac1 (28.Rd6 Ke8 29.Re6 Nc5 30.Bc6 Kf7+/–) 28...Ke8 29.Rc7 Nc5 30.Rd2 Rf3 (30...e5 31.f4 Ne6 32.Rcc2 Nf4 33.Rc7+=) 31.Kg2+/– Ra3 32.e5 (32.Ba8 h3 33.Kf1 e5+=) 32...h3 (32...Nd3 33.Be4 Ne5 34.Rb7+=) 33.Kg1 (33.Kf1 Nd3+=) 33...g5 (33...Nd3 34.Bc6 Nc6 35.Rc6+=) 34.Kf1= g4 35.Bc6 Nc6 36.Rc6 Kf7 37.Re2 Kg6 38.Rc8 (38.Rc7 Ra5 39.Re7 Rb5 40.Ra7 Nd3=) 38...Ra4 (38...Rc3 39.Rg8 Kh5 40.Ra8=) 39.Re8 (39.Rg8 Kh7 40.Rf8 Kg7=) ½–½. Hirtreiter,Michael – Both,Wilfried, BdF, 1987.

7.Nc3 e5 8.bc6 bc6 9.cd5 cd5 10.Nb5 (10.Qa4 Rb8 11.Nb5 0–0+=) 10...Bb8 11.Ba3 Nb6 12.Qc2 (12.d4 a6 13.Nc3 Bg4=) 12...Bd7 (12...Bg4 13.Rc1=) 13.Rc1 Ne4 (13...e4 14.Nfd4+=) 14.Qb2 (14.d4 ed4 15.Nbd4 f5+=) 14...f6 (14...a6 15.Nc3 Nc3 A) < 16.Rc3 Na4 17.Qb7 Ra7 (17...Nc3?! 18.Qa8 Nb5 19.Qa6 Na3 20.Qa3+=) 18.Qd5 Nc3 19.dc3 Be6 20.Qd8 Kd8=+; B) 16.Qc3+=) 15.d3 a6 16.de4 ab5 17.Bb5 Nc4 (17...de4!? 18.Nd2 Kf7+/–) 18.Bc4+– dc4 19.0–0 (19.Rc4!? Be6 20.Rc6+–) 19...Qa5+/– 20.Rc3 Kf7 21.Rd1 Be6 22.Qb7 (22.Qc2 Qa4 23.Qb1 Bc7=) 22...Bc7 23.Bb4 Qb6 24.Qb6 Bb6 25.a3 Ba5 26.Ba5 Ra5 27.Nd2 (27.Kf1 Rha8 28.Ra1 Ke7+=) 27...Rd8= 28.Kf1 Rd3 29.Rd3 cd3 30.Ra1 Ke7 (30...Ra4 31.Ke1+=) 31.Ke1+= Kd6 (31...Ra4 32.h3+=) 32.Nb1 (32.a4 Ke7+=) 32...Rb5 (32...Rc5 33.f3=) 33.a4+= Rb2 34.Nd2 Kc6 (34...Kc5 35.a5+=) 35.Ra3 Ra2 36.Ra2 Ba2 37.f4 ef4 38.ef4 Kc5 39.Nf3 (39.Kf2 Be6+/–) 39...Kb4 40.Kd2+– Ka4 41.Kd3 Kb5 42.Kd4 Kc6 43.e5 Kd7 44.Kc5 Ke7 45.Kd4?? Bb3?? 46.Nd2+– Ba2 47.Ne4 Bb3 48.Ng3 Ba2 49.Ne4?? Bb3 50.f5 fe5 51.Ke5 Ba2 52.Ng5 h6 53.Ne6 Kf7 54.g4 Bb3 55.h4 Ba2 56.Nf4 Bb3 57.g5 hg5 58.hg5 Ba2 59.g6 Ke7 60.Nh5 Kf8 61.Kd6 Bb1 62.Ke6 Ba2 63.Ke5 Bb3 64.Ng3 Ba2 65.Ne2 Bc4 66.Nd4 Ke7+= 67.Nc6 Kd7 68.Nb4 Ke7 69.Nd5 Kf8 70.Kd4 Ba2 71.Kc5?? Bb1= 72.Ne3 Ke7 73.Nd5 ½–½. Teichmann,Erik (2365) – Rujevic,Mirko (2350), Australian Masters, 2000.

7.bc6 bc6 8.Nc3 Nb6 =.

7.d4 Qa5 8.Bc3 Bb4 9.Bb4 Qb4 10.Qd2 Qd2 11.Nbd2 cb5 12.cb5 0–0 13.Bd3 Nb6 14.a4 a5 15.0–0 Bd7 16.Rfc1 Rfc8 17.Rc8 (17.Rc5 Ne8+=) 17...Rc8= 18.h3 Rc3 19.Ne5 Be8 20.Bf1 (20.Kf1 Nfd7 21.Nd7 Bd7= (21...Rd3? 22.Nb6 Rd2 23.Rc1+–; 21...Nd7?! 22.Ke2=)) 20...Nfd7 21.Nd7 Bd7 22.Ra2 Kf8 23.Be2 Ke7 24.Kh2 g6 25.Bd1 Kd6 26.Kg3 e5 27.de5 Ke5 28.Kf3 d4 29.Ke2 (29.Ne4 Rc1 30.ed4 Kd4 31.Rd2 Ke5=) 29...d3 (better is 29...de3 30.fe3 Be6 31.Nf3 Kf6–/+) 30.Ke1+= Be6? (better is 30...g5+=) 31.Rb2?? (better is 31.f4 Kd5 32.Bf3 Kc5 33.Ne4 Kb4 34.Nc3 Ba2 35.Na2 Kb3 36.Kd2 Ka2 37.Bb7+/–) 31...h6?? (31...f5 32.Nb1 Rc5 33.Nd2–/+) 32.f3 (better is 32.f4 Kd5 33.Bf3 Kc5 34.Ne4 Kc4 35.Nd6 (35.Nc3 Kc3 36.Rf2 Nc4–/+) 35...Kc5 36.Nb7 Kc4 37.Na5 Kc5 38.Nb7 Kc4 39.Nd6 Kc5 40.Ne4 Kc4 41.a5+–) 32...Ra3–+ 33.Ne4 (33.f4 Kd6 34.Ne4 Kd5–+) 33...Na4 (better is 33...Nc4 34.Rb3 Rb3 35.Bb3 Ne3–+) 34.Ba4–/+ Ra4 35.b6 (35.Nc5 Ra1 36.Kd2 a4 37.Kd3 Rd1 38.Ke2 Rg1–/+) 35...Ra3 (35...Ra1 36.Kd2 Kd5 37.Kd3–+) 36.Kd2 (better is 36.Nc5!? Bd5 37.Kd2–/+) 36...Kd5–+ 37.Nc3 Kc6 38.Kd3 Rb3 39.Rb3 Bb3 0–1. algernon (2440) – iozeph (2655), net–chess.com, 2015.

7.d4 cb5 8.cb5 (8.c5 Bc7=) 8...Ne4 9.Nbd2 Bb4 (9...Nd2 10.Qd2 Nf6 11.Bd3=) 10.a3 Ba5 (10...Nd2 11.Nd2 (< 11.ab4 Nf1 12.Rf1 Nb6–/+) 11...Bd6 12.Bd3=) 11.Rc1 (11.Bd3 Nd2 12.Nd2 a6+=) 11...Ndf6 (better is 11...Qf6 12.Qe2 0–0=+) 12.Be2?? (12.Bd3 Nd2 13.Nd2 0–0+=) 12...Nd2= 13.Nd2 Ne4 (14.Rc2 Nd2 15.Rd2 Qf6–/+) 0–1. Merkl,M – Welti,Manfred, corr SOK–90–62, 1990.

7.d4 Ne4 8.Be2 Qa5 9.Nfd2 dc4 10.bc6 Nb6 11.Qc2 Nd2 12.Qd2 Bb4 13.Bc3 Nd5 14.Bb4 Nb4 15.cb7 Bb7 16.0–0 (16.Bc4? Rc8 17.0–0 Rc4–+) 16...0–0 17.Nc3 Qg5 18.f3 Nd5 19.Ne4 Qe3 20.Qe3 Ne3 21.Rfc1 Rfd8 22.Nc5 Bc6 23.Kf2 Nf5 24.Bc4 Rd4 25.Ne6 Rd2 26.Kf1? (26.Ke1 Rg2 27.Bf1 Rh2 28.Nc7–+) 26...Ne3–+ 27.Ke1 Rg2 28.Nd4 Bd7 29.Be2 Rh2 30.Rab1 Nf5 31.Nf5 Bf5 32.Rb5 (32.Rb2 Rh1 33.Bf1–+) 32…Rh1 (32...Rh1 33.Kf2 Rc1 34.Rf5 Rc2–+) 0–1. Mortensen,Hen (2000) – Akdag,D (2160), Politiken Cup, Copenhagen DEN, 2010.

7.a4 0–0

8.Qc2 a6 9.Nc3 e5 10.d4 =+.

8.Qc2 a6 9.Nc3 Ne5 10.Ne5= Be5 11.d4 Bc7 (11...Bb8 12.bc6 bc6 13.Bd3=) 12.Be2 (12.cd5 ed5 13.bc6 bc6=) 12...Bd7 (12...ab5 13.ab5 Ra1 14.Ba1=) 13.0–0 (13.ba6 ba6 14.0–0 e5=) 13...dc4 (better is 13...cb5 14.cb5 ab5=) 14.Bc4 (14.ba6 Ra6 15.Bc4 Ra7=) 14...a5 (better is 14...cb5!? 15.Bd3 ba4–/+) 15.Rfd1 (15.Bd3 Rc8+=) 15...Be8 (15...cb5!? 16.Nb5 Bb5 17.ab5 Qd6+=) 16.e4 Rc8 17.Ba3 (17.e5 cb5 18.ab5+/–) 17...Bh2? (better is 17...cb5!? 18.Nb5 Bb5 19.ab5 Re8+=) 18.Kh2+– Qc7 (18...cb5 19.Nb5 Bb5 20.ab5 Qc7 21.e5 Rfd8+–) 19.e5 cb5 20.Nb5 (20.Bf8!? Ng4 21.Kh3 Qc4 22.Kg4 Qc3 23.Qc3 Rc3+–) 20...Bb5 21.ab5 Rfd8 22.Rac1 (22.Rac1 Rd4 23.Bd6+/–) 1–0. De Visser,Arno – Klopmeijer, Noordkop, 1987.

8.Qc2 a6 9.d4 ab5 10.ab5 Ra1 11.Ba1 cb5 =.

8.Qc2 a6 9.cd5 cd5 10.ba6 ba6 =+.

8.Qc2 cb5 9.ab5 h6 (9...e5 10.cd5 Nd5 11.Bd3–/+) 10.d4= dc4 11.Nbd2 b6 (11...Nd5 12.Bc4 Nb4 13.Qb3=) 12.Bc4+= Bb7 13.0–0 Qe7 14.e4 Bf4? (better is 14...Bb4+=) 15.Ba3+– Bd6 (15...Qd8 16.Bf8 Nf8 17.Qd3+–) 16.Bd6 Qd6 17.e5 Qb4 18.Ra4 Qe7 19.ef6 Nf6 20.Rfa1 Bd5 21.Ne5 Rfc8 22.Qd3 Bc4 23.Ndc4 Nd5 24.R4a3 Rc7 25.Nc6 Qg5 26.Ra6 (26.Na7?! Nf4 27.Qe4 Raa7 28.Ra7 Nh3 29.Kf1 Ra7=) 26...Nf4 (26...Rf8 27.Qf1+– (27.Na7 Nb4 28.Qf1 Na6–/+)) 27.Qf3 Qb5 28.Ne7!! (28.Qf4?! Rc6 29.Nd6 Qg5 30.Qf7 Kh7+–) 28...Re7 29.Qa8 Re8 30.Qf3 Qc4 31.Qf4 e5 32.Qe3 Rc8 (32...Qd4 33.Ra7 Rd8 34.Ra8+–) 33.de5 (33…Qc5 34.Ra7 Qe3 35.fe3+–; < 33.Qe5 Qa6!? 34.Rd1 Qd3–/+) 1–0. Trkn – sburns, ICC, 2004.

8.Qc2 c5 9.Be2 =+.

8.Qc2 e5 9.d3 (9.bc6 bc6 10.d4 e4=+) 9...Re8 (9...e4 10.bc6 bc6 11.Nd4=+) 10.Be2 Nf8 (10...dc4!? 11.dc4 Qc7=+) 11.c5= Bc7 12.e4 (12.0–0 Bg4=) 12...Bg4 (12...Qd7 13.0–0=) 13.0–0= Ng6 14.Ne1 (14.h3 Bd7=) 14...Be2 15.Qe2 Nf4 16.Qc2 Qd7 17.f3 (17.Na3!?=+) 17...cb5–/+ 18.Nd2 (18.g3 Ne6 19.Nc3 b4–+) 18...ba4–+ 19.Ra4 de4 (19...b5 20.Ra6–+) 20.fe4–/+ Ng4 (20...Qc6 21.Ra1–/+) 21.Qb3 (21.Rf3 Ne2 22.Kh1 Nd4 23.Bd4 ed4–/+) 21...Re6 (better is 21...Qc6 22.Kh1 Qh6–+) 22.Ndf3? (better is 22.Rf3–/+) 22...Ne2–+ 23.Kh1 Rh6 24.h3 b5! 25.Ra2 a5 26.Ba3 Ng3 27.Kg1 Nf1 28.Kf1 a4 29.Qb2 Nf6 30.Ne5 Qe6 31.N5f3 Qb3 32.Qd2? Ba5 33.Qf2? Be1 34.Ne1 Nd7 35.c6?? Rc6 36.Be7 Qe6 37.Bh4 b4 38.Nf3 b3 39.Rd2 a3 40.Nd4 Rc1 41.Ke2 Qb6 42.Bg5 b2 43.Be3 b1Q 44.Nf5 Qe6 (45.Qg3 g6–+; 44...Qf6 45.Bd4 Qg5 46.g3–+) 0–1. Nemeth,Laszlo – Hirzel,Andre, Cseppko op–A, 2002.

8.Nc3 Nb6 9.cd5 Nbd5 10.bc6 bc6 11.Rb1 =+.

8.Nc3 e5 9.d4 e4 10.Nd2 Re8 11.Be2 Nf8 12.Qb3 Be6 13.Ba3 Ba3 14.Qa3 Ng4 (14...cb5!? 15.cd5 b4 (worse is 15...Nd5 16.Bb5 Re7 17.Nce4+/–; worse is 15...Bd5 16.ab5 N8d7 17.0–0=) 16.Qb4 Nd5 17.Nd5 Bd5=) 15.bc6+= bc6 16.Qc5 Qh4 17.g3 Qh3 18.Bf1 (18.Qc6 Qg2 19.Rf1 Rec8=; worse is 18.cd5 cd5 19.Bg4 Qg4+=) 18...Qh5 19.h3 Rec8 20.Be2 Qh6 21.Qd6 Ne3 22.fe3 Qe3 23.Rc1 Qd4 24.Qf4 Ng6 25.Qd6 Ne5 26.Nce4? (better is 26.Nb3 Nd3 27.Bd3 Qd3 28.cd5+=) 26...Rd8–+ 27.Qc5 de4 28.Qd4 Rd4 29.Nb3 Nd3 (29...Nd3 30.Bd3 Rd3–+) 0–1. adamk112 (1765) – bogdankr (1785), kurnik, 2013.

8.Nc3 Re8 9.Be2 (9.bc6 bc6 10.Rb1 Rb8=+) 9...Nc5 (9...dc4 10.Bc4 Nb6 11.Be2=+) 10.d3 (10.bc6 bc6 11.d4 Nce4=) 10...Bd7 (10...dc4 11.dc4 cb5 12.ab5=+) 11.0–0= Qc7 (11...e5 12.d4 ed4 13.Qd4–+) 12.h3 (12.a5 e5=) 12...e5 13.Rc1 (13.d4 ed4 14.Nd4 dc4 15.bc6 bc6 16.Bc4 Rab8=) 13...e4 (13...dc4 14.dc4 Rad8 15.Qc2=+) 14.de4= de4 15.Ne1 (15.Nd4 Rad8=+) 15...Rad8–/+ 16.f4 ef3 17.Bf3 (17.Rf3 Bg4! 18.hg4 Bh2 19.Kh1 Rd1 20.Rd1 Ng4–+) 17...Re3 (17...Bh3 18.Nd5 cd5 19.Bf6 gf6 20.gh3 dc4 21.Qe2–/+) 18.bc6 (18.Nc2 Rd3 19.Qe2 Be5–/+) 18...Bc6 (18...Bh3 19.Nd5 Nd5 20.cd5+=) 19.Qc2 (19.Nd5 Nd5 20.cd5 Ba4+–) 19...Bg3 (19...Bh2 20.Kh1 Bf3 21.Nf3–/+) 20.Bc6 (20.Nb5 Qf4 21.Bf6 Qf6 22.Bc6 Qc6–/+) 20...bc6 (better is 20...Qc6 21.Nb5 Nfe4–+) 21.Rf3?? (better is 21.Rd1–+) 21...Re1 22.Re1 Be1 23.Qe2 (23.Ba1 Rd2 24.Qf5 Qb6–+) 23...Re8 (23...Rd2 24.Qe1 Rb2 25.Qe3–+) 24.Re3 Re3 25.Qe3 Qb6 26.Nd1 Ne6 (26...Na4!? 27.Bf6 Qe3 28.Ne3 gf6 29.Kf1–+) 27.Qb6 (27.Bf6 gf6 28.Kh2 Qb8 29.Kh1 Bg3–+) 27...ab6 28.Ba3 (28.Bf6 gf6 29.g4 Nc5–+) 28...Ne4 29.Nb2 (29.Bb2 Bg3–+) 29...Bf2 30.Kf1 (30.Kh2 Bg3 31.Kh1 h5–+) 30...Bd4 31.Nd3 Nd2 0–1. Rush,Bradley – Powe,Michael, IECG Cat–B, 1995.

8.d4 dc4 9.Bc4 cb5 10.ab5 Nb6 =.

8.d4 dc4 9.Bc4 Nb6 =.

8.d4 c5 =+.

8.cd5 cd5 9.Nc3 e5 10.d4 Qa5 11.de5 Ne5 12.Ne5 Be5 13.Qd2 =+.

8.cd5 cd5 9.Nc3 e5 10.d4 e4 11.Nd2 =.

8.cd5 cd5 9.Be2 e5 =+.

8.cd5 Nd5 9.Nc3 =+.

8.Be2 e5 9.0–0 e4 10.Nd4 c5 11.Nf5 Be5 12.Qb3 (12.Bc3!?=+) 12...Bb2 13.Qb2 Nb6 14.Ng3 Be6 (14...Nc4 15.Qc2–/+) 15.Nc3 (15.cd5 Qd5 16.f3 ef3 17.Bf3 Qd7=) 15...d4 16.Nce4 Ne4 (16...Nc4 17.Qc2 Ne4 18.Ne4=) 17.Ne4 d3 (< 17...Nc4 18.Qc2 Qd5 19.Bc4 Qc4 20.Qc4 Bc4 21.Rfc1+/–) 18.Bf3 Nc4 (< 18...Bc4 19.Nc5 Qe7 20.Qa3+–) 19.Qc3 Rc8 20.a5 b6 (20...f5!? 21.Ng3 Qd7=) 21.ab6+= ab6 22.Ra6 (22.Ra4 Na5+=) 22...Na5 (22...f5 23.Ra7 Rc7+/–) 23.Ng3 c4 24.Nh5 Qg5 (24...f6 25.Nf4 Re8 26.Ne6 Re6 27.Bg4+–) 25.h4 Qh6 (25...Qh4 26.Qg7#) 26.Ra5?? (better is 26.Rb6 Nb3 27.Nf4+=) 26...ba5–+ 27.Qa5 Rc5 28.Nf4 Bd7 (28...Qh4 29.Qb4 Qg5 30.Rb1–+) 29.Rb1 (29.Qa7 Qd6 30.b6 Rb5–/+) 29...Rb8 (29...Qh4!? 30.Qb6 Qg5–+) 30.Qa7–/+ Qd6 31.b6 Bc6 32.Bc6 Rc6 33.Nd5 Rc5 34.e4 Kf8 (34...Qd8 35.Ne7 Kf8 36.b7–+) 35.h5 Qd8 36.h6 Rc6 (36...gh6 37.Nf6 Rc7 38.Nh7 Ke7 39.Qa3 Qd6 40.Qd6 Kd6 41.Nf6–/+) 37.hg7 Kg7 38.Qa1 Kg8 39.Qa3 Rcb6 40.Rb6 Rb6 41.Nb6 Qb6 ½–½. Labahn,Wolfgang – Heeke,G, Paderborn Himmelfahr, 1988.

8.Be2 Qe7 9.0–0 e5 10.d3 (10.d4 dc4 11.Nfd2 cb5 12.ab5 Nb6 13.Nc4 Nc4 14.Bc4 e4=) 10...Re8 (10...dc4 11.dc4 Rd8 12.Qc2+=) 11.Re1 (11.cd5 cd5 12.a5 e4 13.de4 de4=) 11...e4 12.de4 de4 (worse is 12...Qe4 13.Nc3 Qe6 14.cd5 cd5 15.Rc1+=) 13.Nfd2 Ne5 14.Nc3 Bf5 (14...Nd3 15.Bd3 ed3 16.a5+=) 15.Qc2 Can e4 get defended? (15.Qb3 Nd3 16.Bd3 ed3+=) 15...Neg4 (15...Nd3 16.Reb1–/+) 16.g3 (16.h3 Nh6=) 16...h5 (16...Rad8 17.Red1+=) 17.h4 (17.Red1 h4=) 17...Rad8+= 18.Nf1 (18.bc6 bc6 19.Nb3 Ne5+=) 18...Ne5–/+ 19.Rad1 (19.bc6 bc6 20.Red1 Nd3–/+) 19...Bg6 (19...Nd3 20.Bd3 ed3 21.Qb3–/+) 20.Nh2 (20.Qb3 Nfd7 21.Nd2 Nc5–/+) 20...Qe6 (20...Nd3 21.Rf1–/+) 21.Nb1 (21.Qb3 Bc5–/+) 21...Nf3! 22.Bf3 (22.Bf3 ef3 Combination; 22.Nf3 ef3 Combination) 22...ef3 23.Qb3 (23.Qc1 cb5 24.ab5 Bg3 25.Nf3 Qg4–+) 23...Be4 (23...Bg3 24.Nf3 Qg4 25.Rd8 Rd8 26.Rd1 Bd6 27.Kf1 Qf3 28.Bf6 Qf6 29.Nc3–+) 24.Nd2 Qh3 25.Nhf3 Bg3! 26.Ne4 (26.fg3 Qg3 Double attack) 26...Ne4 27.Re2 Bd6 (27...Bh4 28.Rd8 Rd8 29.Nh4 Qg4 30.Ng2 Qe2 31.Kh2 Qf2 32.Bd4 Qg3 33.Kg1 Rd4 34.Qc2–+) 28.Rd6 Rd6 29.Nh2 (29.Be5 Qf3 30.Bd6 Qe2 31.Qb1 Qf2 32.Kh1 Qh4 33.Bh2–+) 29...Rg6 0–1. Wilke,Hans_Peter (1655) – Oginski,Ulrich, Lichtenberger Sommer, 2015.

8.Be2 Re8 9.0–0 e5 10.d4 e4 11.Nfd2 cb5 12.cb5 b6 13.Nc3 Bb7 14.Qb3 Rc8 15.Rac1 Qe7 16.Rc2 Nf8 17.Rfc1 Ng6 18.Bf1 Bh2 19.Kh1 Ng4 20.Nd5 Qh4 21.Rc8 Bg3 22.Kg1 Qh2 0–1. kannisogoet – furetoy, kurnik, 2014.

8.e4?? Qa5?? 9.e5+– Bc7 (9...Ne5!? 10.Be5 Be5 11.Ne5 Ne4+–) 10.ef6 Nf6 11.Bd3 Bh2?? (11...e5 12.Ne5 Be5 13.Be5+–) 12.Be4 (better is 12.Bf6 gf6 13.Nh2+–) 12...Qa6?? (better is 12...Ne4 13.Rh2 Nd6+–) 13.Bc2 (better is 13.ba6 Ne4 14.Rh2+–) 13...g5 (13...Qb6 14.Rh2 dc4 15.Bf6 gf6 16.bc6+–) 14.Nc3 (14.Bf6 Re8 15.Rh2 Qb6 16.Rh7 Qe3 17.fe3 dc4 18.Rh8) 14...Bd7 (14...Qb6 15.Rh2 e5+–) 15.Bg6 (better is 15.ba6 Bd6 16.Ng5+–) 15...Bc8 (15...Qb6 16.Bh7! Nh7 17.Rh2 f6+–) 16.Bh5 0–1. Wilke,Hans_Peter (1655) – Oginski,Ulrich, Lichtenberger Sommer, 2015.

8.e4?? de4 9.Nd4 Qc7 –+.

7.a4 a6

8.Na3 0–0–/+ 9.Qc2 (9.cd5 cd5 (9...Nd5?! 10.Nc4 Qe7 11.Be2+=) 10.Be2 Nc5+=) 9...Qc7 (9...ab5 10.cb5 Nc5 11.Be5–+) 10.Rc1 (10.Bd3 ab5 11.ab5 Nc5 12.bc6 Nd3 13.Qd3 bc6 14.Bf6 gf6+=) 10...cb5 (better is 10...ab5 11.cb5 c5–/+) 11.ab5= Ne5 (11...a5!?=) 12.c5+= Nf3 13.gf3 Be7 (13...Bh2?? 14.Bf6 gf6 15.f4+–) 14.b6 (14.ba6 ba6 15.f4 Qc6+=) 14...Qc6 15.Bd3 h6 16.Rg1 Bd7 17.Be5 Rac8 (17...Rfc8 18.Qb2 Kf8 19.Ke2+=) 18.Qb2 Rfe8?? (better is 18...Kh8+=) 19.Ke2 (better is 19.Bf6 e5 20.Bg7+–) 19...Kh8 (19...g6 20.Bf6 Bf6 21.Qf6+–) 20.Rg7 Kg7 21.Rg1 Kf8 22.Bf6 (better is 22.Bh7! Red8 23.Bf6+–) 22...Bf6= (22...Bc5?? 23.Bh7 Qb5 24.Qb5 Bb5 25.Nb5 ab5 26.Rg8) 23.Qf6 e5 (23...Qc5 24.Rg6 Qa3 25.Rh6 Qd3 26.Kd3 Bb5 27.Kd4 e5 28.Kd5 Rcd8 29.Kc5 Rc8 30.Kb4 Rc4 31.Kb3 Rc3 32.dc3 Ba4 33.Ka4 Rd8 34.Rh8) 24.Qg7 Ke7 25.Rg6 Rg8 (better is 25...Be6 26.Bf5 Kd8 27.Qf6 Re7 28.Rg8 Kd7 29.Rc8 Qc8=) 26.Qe5+/– Be6 27.Qf6 (27.Rh6 Qc5 28.Nc2 Qd6 29.Qf6 Kd7+–) 27...Kd7+= 28.Rh6 Qc5 29.Nc2 Qb6 30.Rh7 (30.Nd4 Qd8 31.Qf4 Rh8+=) 30...Rcf8 (30...Qd8!? 31.Qb2 Rc7=) 31.Nd4+= a5?? (better is 31...Kc8+=) 32.f4 (32.Ne6 Kc8 (32...Qe6?? 33.Bf5 Qf5 34.Qf5 Kc6 35.Qf6 Kb5 36.Rh6+–) 33.Rf7 Rf7 34.Qf7 Rh8+–) 32...Kc7 (better is 32...Bg4 33.f3 Bf3 34.Kf3 Qf6–+) 33.Ne6+– Qe6 (33...Kc8 34.Qc3 Qc6 35.Nf8 Qc3 36.dc3 Rf8+–) 34.Qe6 1–0. Leon Manas,JF (1695) – Rodriguez Manzaneda,J, Liga Insular de Ajedrez por Eq, 2011.

8.Nc3 ab5 9.ab5 Ra1 10.Ba1 =.

8.Nc3 Qe7 9.Be2 (9.d4 0–0=) 9...0–0 (9...dc4 10.bc6 bc6 11.Bc4=) 10.0–0 (10.d4 dc4 11.bc6 bc6=) 10...e5 (10...cb5 11.cb5 e5 12.a5=) 11.Qc2 Nb6 (11...cb5 12.ab5 dc4 13.Bc4=) 12.d4 (12.cd5 Nbd5 13.bc6 bc6=) 12...Nc4 13.Bc4 dc4 (13...ed4 14.Nd4 dc4 15.bc6 bc6 16.Rfd1=+) 14.bc6 (14.de5 Be5 15.bc6 bc6 16.Ne5 Qe5=) 14...ed4 15.cb7 (15.Nd4!? bc6 16.Rad1=+) 15...Bb7–/+ (< 15...Qb7 16.Nd4 Rb8 17.Ba3 Ba3 18.Ra3=) 16.Nd4 Bh2?? (better is 16...Ng4 17.Nf5 Bh2 18.Kh1 Qg5–+) 17.Kh2+= Qe5 18.f4 Qh5 (18...Qe3 19.Nf3 Qf4 20.Kh1=) 19.Kg1 (better is 19.Kg3 Qg4 20.Kf2 Qg2 21.Ke1=) 19...Ng4–+ 20.Rfe1 Qh2 21.Kf1 Rfe8 (21...Rad8 22.Na2 Rfe8–+) 22.Bc1?? (better is 22.e4 Qf4 23.Nf3 Ne3 24.Re3 Qe3 25.Re1 Qd3 26.Qd3 cd3 27.Nd2–/+) 22...Rad8–+ 23.Qb2 (23.e4 Qh1 24.Ke2 Qg2 25.Kd1 Qf3 26.Re2 Rd4 27.Bd2 Ne3 28.Kc1 Nc2–+) 23...Qh1 24.Ke2 Qg2 (better is 24...Re3 25.Be3 Qg2 26.Kd1 Qb2 27.Bd2 Qa1 28.Kc2–+) 25.Kd1 Ne3!! 26.Re3 (26.Be3 Qb2) 26...Rd4 27.Bd2 Re3 (28.Kc1 Qf1 29.Nd1 c3 30.Qc3 Rc3 31.Bc3 Rd1 32.Kc2 Qe2 33.Kb3 Bd5 34.Kb4 Qc4 35.Ka5 Qc7 36.Kb4 a5 37.Kb5 Bc4#) 0–1. Hess – Landmann,H, corr, 1973.

8.d4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 cb5 =.

8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.cb5 e5 12.0–0 0–0 13.Qb3 Re8 14.d4 e4 15.Nfd2 Nf8 16.Nc3 Bc7 17.g3 Bh3 18.Rc1 Ng6 19.Na4 b6 20.Bb2 Ng4 21.Ba3 Qf6 22.Bg4 Bg4 23.Rc7 1–0. olawoj – alucardboth, kurnik, 2014.

7.a4 e5

8.Nc3 0–0 9.bc6 bc6 10.cd5 cd5 =+.

8.Nc3 0–0 9.d4 Qa5!? –/+.

8.Nc3 0–0 9.d4 e4 10.Nd2= Be7 (10...Re8 11.cd5 Nd5 12.Qb3=+ (12.Nde4? Bb4–+)) 11.Be2 (11.cd5 cd5 12.Qb3 Bd6+=) 11...Re8 (11...cb5 12.cb5 a5 13.ba6 ba6 14.0–0+=) 12.0–0+= Nf8 (12...Bd6 13.Ba3 Ba3 14.Ra3+=) 13.bc6 (13.a5 cb5 14.Nb5 Be6+=) 13...bc6= 14.c5 (14.Ba3!?=) 14...Ng6 (14...Qc7 15.Ra3=+) 15.a5 (15.Qc2 Rb8=+) 15...Nd7 (15...Rb8 16.Qc2=+) 16.a6 (16.Qa4 Qc7=+) 16...f5 (16...Rb8 17.Rb1=+) 17.Qa4= Qc7 18.Nb3 (better is 18.Na2 Bg5 19.Bc3=) 18...f4?? (better is 18...Nf6=+) 19.Na5+– Nb8? (19...Nc5 20.Nd5 Na4 21.Nc7 Nb2 22.Ne8 Bf5 23.Nc6 Re8 24.Na7 fe3 25.fe3 Bd7+–) 20.Nd5! Qd7 (20...cd5 21.Qe8) 21.Nf4 (21.Nc6 Nc6 22.Bb5 f3 23.gf3 Qh3=) 21...Nf4 22.ef4 Kh8 (22...Qc7+–) 23.Nc6! Ba6 (23...Nc6 24.Bb5; 23...Qc6 24.Bb5) 24.Ba6 (< 24.Ne7 Be2 25.Qd7 Nd7+–) 24...Nc6 25.Rfd1 (25...Rab8 26.Bb5 Rb5 27.Qb5+–) 1–0. Grund,Karl – Neubecker,Adolf, corr ICCF EU–M–GT–98, 1975.

8.c5 Bc7 9.Be2 =+.

8.d4 ed4 9.Qd4 Bc5 =+.

8.Be2 0–0 9.Qc2 Re8 10.Nc3 Nf8 11.d3 h6 12.e4 dc4 13.dc4 Bg4 14.Rd1 Qe7 15.0–0 Ne6 16.Nb1 Nf4 17.Bc1 g5 (17...cb5 18.ab5 Rac8 19.Bf4 ef4 20.Bd3–/+) 18.g3 Ne6 19.Kg2 Bf3 20.Bf3 Nd4 21.Qd3 Nd7 22.Ba3 Ba3 23.Qa3 Qa3 24.Na3 Nc5 25.a5 a6 26.bc6 bc6 (worse is 26...Nf3 27.cb7 Nb7 28.Kf3 Na5 29.Rd5+=) 27.Rb1 Ncb3 28.Rfd1 Rab8 29.Bg4 Na5 30.f4 f6 31.fe5 fe5 32.c5 (32.Kf2 Red8–+) 32...Rb1 (better is 32...Rb3!? 33.Rb3 Nab3 34.Nc4–+) 33.Rb1 Nab3 34.Nc4? (better is 34.Bd7!? Rb8 35.Nc4–/+) 34...Nc5–+ 35.Rb6 Kf8 (better is 35...Ne4!? 36.Ra6 Nf6 37.Bd1–+) 36.Na5 h5 37.Bh5 Re6 38.Bg4 Rf6 39.Nc4 Ne4 40.Ne5 Rf2 41.Kg1 Ra2 42.Nc6 Nc2 43.Nb4 Attacking the isolated pawn on a6 43...Ra1 44.Kg2 Ne1 45.Kf1 Nf3 46.Kg2 Ne1 47.Kf1 a5 48.Nd5 Nf3 49.Kg2 Ne5 50.Be6?? (better is 50.Rb8 Kg7 51.Rb7 Nf7 52.Be6=) 50...Ra2–+ 51.Kf1?? (51.Kh3 g4! 52.Bg4 Nf2 53.Kh4 Nfg4 54.h3–+) 51...Nf3 (51...Rf2 52.Ke1 Nd3 53.Kd1 Rd2) 52.Rb8–+ Kg7 53.Rg8 Kh7 54.Nf6 Nf6 55.Ba2 Ng8 56.Kg2 Nd4 57.Kf2 Kg7 58.Ke3 Nc6 59.Ke4 Nge7 60.h4 gh4 61.gh4 Kh6 62.Bb3 Kh5 63.Kd3 Kh4 64.Kc4 Kg3 65.Kd3 Kf2 66.Kd2 Nd4 67.Ba4 Nd5 68.Kd3 Nb6 69.Be8 Ne6 70.Kd2 Nc7 71.Bc6 Ne6 72.Be8 Nc5 ½–½. Nemeth,Laszlo1 (1985) – Eberth,Zoltan (2160), Fuzesabony op, 2004.

8.d4 e4

9.Nfd2 0–0 =+.

9.Ne5 Qc7

10.bc6 bc6 11.Nd7 Bd7 =+.

10.Ng4 cb5 11.c5 Be7 12.Nf6 Nf6 13.ab5 =.

10.Ng4 Ng4

11.Qg4 0–0

12.Nc3 Qa5 13.Qe2 Nf6 =+.

12.Qd1 dc4 13.Bc4 cb5 14.Bb5 =+.

12.Qd1 f5 13.Qb3 (13.Nc3 Nf6= (< 13...Bh2 14.Qh5+–)) 13...Nf6=+ 14.g3 (14.Nc3 Be6=+ (< 14...Bh2 15.cd5 Bd6 16.dc6 Kh8 17.d5+–)) 14...Be6 15.Na3 (15.Nc3 Rad8=+) 15...g5 (better is 15...c5–/+) 16.Bh3? (16.c5 Be7=+) 16...Qf7?? (better is 16...dc4 17.Qc2 Bb4 18.Kf1 Nd5–+) 17.c5=+ Bc7 18.Nc2 Qh5 19.Bg2 f4 20.a5 (20.gf4 gf4 21.h3 f3=+) 20...Bg4 (20...fe3 21.fe3 Bh3 22.Bh3 Qh3 23.0–0–0–+) 21.ef4= gf4 22.a6 (22.gf4 cb5 23.Qb5 Bf4=) 22...ba6 (22...f3 23.Bf1 Rab8 24.h3=+) 23.bc6= (< 23.Ra6 cb5 24.gf4 Bf4–/+) 23...Be2 (better is 23...e3 24.gf4 ef2 25.Kf2 Rab8=+) 24.Bc1?? (better is 24.gf4 Rab8 25.Qc3=) 24...Bc4–+ 25.Qc4 dc4 26.Bf1 (26.Bf4 Bf4 27.gf4 Rac8–+) 26...Qf3 27.Bc4 Kh8 28.0–0 Qc3 29.Ba6 (29.Bf4 Bf4 30.Be6 Qc2 31.Ra6 e3–+) 29...Qc2 30.Bb7 Rab8 (30...Rad8 31.Ra7 e3 32.Be3 fe3 33.Ba6–+) 31.Ra7 fg3 32.hg3 Ng4 33.d5 (33.Bf4 Bf4 34.c7 Bc7 35.Be4 Qe4 36.Rc7 Nf2 37.Rf7 Qh1 38.Kf2 Rf7 39.Ke3 Rb3 40.Kd2 Qg2 41.Rf2 Rf2 42.Ke1 Rb1) 33…Rf2 (34.Bd2 Rf1 35.Kf1 Qd3 36.Ke1 Bg3 37.Kd1 Ne3 38.Kc1 Qc2#) 0–1. Stejskal,Drahoslav – Konicek,Petr, CZE–chT1b, 1997.

12.Qd1 Nf6 13.c5=+ Be7 14.Qc2 Ne8 (14...Be6 15.Nd2=+) 15.Nc3 (15.Be2 cb5 16.ab5 Nf6=) 15...f5 16.Ne2 Bg5 17.Qd2 f4 (17...Nf6 18.Rb1=) 18.ef4 Bf4 19.Nf4 Qf4 (19...Rf4 20.Qe3=) 20.Qf4+= Rf4 21.Be2 Be6 22.Rb1 g6 (22...Rc8 23.Bc1 Rf7 24.h3+=) 23.h4 Ng7 24.Bc1 Rf7 25.h5 (25.Rb4 cb5 26.ab5 Raf8+=) 25...Raf8 (25...Nh5 26.Bh5 gh5 27.bc6 bc6 28.Rh5+=) 26.hg6 (26.h6 Nf5 27.Rb4 Rc8+=) 26...hg6 27.f3 Nh5 (27...Nf5 28.Rb4=) 28.Kf2 (28.Bh6 Ng7+/–) 28...ef3 (28...Re8 29.bc6 bc6 30.g3+=) 29.gf3 Bf5 30.Rb2 Re8 31.a5 (better is 31.Bg5+/–) 31...a6? (better is 31...Rfe7 32.bc6 bc6+=) 32.ba6+– ba6 33.Ba6 Be4 34.Be2 Bf5 35.a6 Ra7 36.Re1 Bc8 37.Rb6 (37...Rc7 38.Bg5+–) 1–0. Trkn – guest439, ICC, 2003.

12.Qh4 cb5 13.c5 Qa5 14.Nc3 b4 15.Nd5 Re8 =.

7.Nc3 0–0

8.a4 e5 9.Ba3 Qe7 (9...Ba3!? 10.Ra3 d4–/+) 10.Bd6= Qd6 11.cd5 (11.d4 Ne4 12.c5 Qc7 13.Ne4 de4=+) 11...cd5 12.d4 e4 (12...Ne4 13.Qb3=) 13.Nd2 Re8 (13...a6 14.Rc1=) 14.Qb3 (14.Be2 a6=) 14...Nf8 15.h3 (15.Be2 Be6=) 15...Bd7 (15...Be6 16.Be2=) 16.Be2 Rac8 (16...Rec8 17.a5=) 17.Qa3 (17.a5 Ng6=) 17...Qe6 18.Rc1 (18.0–0 Rc7=) 18...Qf5 19.Nb3 (19.0–0 Qg5 20.Kh2 Ng6=) 19...b6 (19...Qg6 20.g3=+) 20.g4 (20.0–0 Qg5 21.Kh2 Ne6=) 20...Qg6 21.Kd2 (21.Qd6 Be6=) 21...Be6=+ 22.Qd6 Red8 23.Qf4 h6 (23...Bd7 24.Ke1=) 24.Na2 (24.Rhg1=) 24...Qg5 (24...Bd7!?=) 25.Qg5+= hg5 26.Nb4 Bd7 27.Nc6 Bc6 28.Rc6 Rc6 29.bc6 Rc8 30.Rc1 Rc7 31.Bb5 Ne6 32.Na1 Nd8 33.Nc2 a6 34.Ba6= Rc6 35.Nb4 Rc1= 36.Kc1 Kf8 37.Bb5 ½–½. De Visser,Arno – Oesterreich, Biel, 1984.

8.Qc2 Re8 9.Rc1 a6 10.bc6 bc6 11.Be2 e5 12.cd5 cd5 13.d3 (13.0–0 Rb8=+) 13...Rb8 14.0–0 Nf8 15.Rb1 (15.Rfd1 Bg4=+) 15...Bg4 (15...Ne6 16.Nd1 d4 17.a3–/+) 16.h3 Bd7 17.d4 e4 18.Ne5 (18.Nd2 Rb6=) 18...Be5 (18...Qa5!?=+) 19.de5= Re5 20.Rfd1 (20.Ba6!? Qa5 21.Be2=) 20...Rg5=+ 21.h4 Rg6 22.Nd5 (22.h5 Rg5=+) 22...Nd5 23.Rd5 Qh4 24.Rh5 Qe7 25.Re5 Qb4 (25...Re6 26.Re6 Qe6 27.Qc3–/+) 26.Re4 Qb7 27.Bf3 Bf5 28.Qc4 Qb5 (28...Qa7 29.Qc3–/+) 29.Qc3 (29.Qc7 Ne6 (< 29...Be4 30.Be4 Rh6 31.Qg3–/+) 30.Re6 Re6–+ (30...fe6 31.Rd1 Rf8 32.Rd8=)) 29...Qc6 (better is 29...Be4 30.Be4 Rf6–/+) 30.Qe5?? (30.Qc6 Rc6 31.Re8–+) 30...Rb2! (30...Be4?! 31.Be4 Rb2 32.Rb2 Qc1 33.Kh2–+) 31.Rb2 (31.Qb2 Be4) 31...Qc1 32.Kh2 Be4 (32...Rh6 33.Kg3 Qh1 34.Bh5 Rh5 35.Kf3 Bg4 36.Rg4 Re5 37.Rd2–+) 33.Be4 Re6 34.Qb8 (34.Bh7 Kh7 35.Qd4 Rh6 36.Kg3 Qh1–+) 34...Re4 35.Rb6 (35.Qb7 Rh4 36.Kg3 Rh5–+) 35...Rh4 (35...Qc4 36.Kg1–+) 36.Kg3 Qh1 (better is 36...Qc4!? 37.f4 Rh1 38.Rb2–+) 37.Kf3 (37.Rb1 Qh2 38.Kf3 Qb8 39.Rb8–+) 37…Qd1 (38.Kg3 Qg4#) 0–1. Bosboom,Manuel (2460) – Piket,Jeroen (2630), NED–ch Rotterdam, 2000.

8.d4 cb5 9.Nb5 Bb4 10.Nc3 b6 (10...Qa5 11.Qb3=) 11.Qb3 Bc3 (11...Ba5 12.Rc1=) 12.Bc3 ½–½. Pech,Jaroslav – van de Pavoordt,Frank, corr or02–025, 2002.

8.d4 dc4 9.Bc4 cb5 10.Nb5 Be7 11.Nc3 =.

8.d4 dc4 9.Bc4 Nb6 10.Bd3 Bd7 11.a4 Nbd5 12.0–0 (12.Nd5 ed5 13.0–0 Qe7=) 12...Qa5 (12...cb5 13.Nb5 Be7 14.Ne5+=) 13.Qb3 (13.Nd5 cd5 14.Ba3 Ba3 15.Ra3 Rfc8+=) 13...Rab8 (13...Nb4 14.Ba3 cb5 15.Bb5+/–) 14.Nd2 (14.Ba3 Ba3 15.Ra3 Rbc8+=) 14...Nc3 (14...Qc7 15.h3=) 15.Bc3+= (15.Qc3? Bb4 16.Qc2 Bd2–+) 15...Qc7 16.h3 Nd5 17.Bb2 (17.Rfc1 Rbc8+=) 17...a6 (17...Nb4 18.Ba3 Nd3 19.Bd6 Qd6 20.Qd3+=) 18.Rfc1 (18.ba6 ba6 19.Qc2 Nb4 20.Bh7 Kh8=) 18...Rfc8 (18...ab5 19.ab5 Ra8 20.Ba3 Ba3 21.Ra3 Ra3 22.Qa3+=) 19.Ne4 (19.ba6 ba6 20.Qc2 Nb4 21.Bh7 Kh8+=) 19...Be7 (19...Bb4 20.Ba3 a5 21.Nc5+=) 20.Nc5 (20.Ba3 Ba3 21.Qa3 a5+/–) 20...ab5+= 21.ab5 Be8 (21...Bc5 22.Rc5 Qd8 23.bc6 Bc6 24.Rac1+=) 22.Na4 (22.e4 Nf6+/–) 22...Qd8 (22...b6 23.Nc3 Nb4 24.Be4+=) 23.b6+/– Ra8 24.Rcb1 (24.Nc5 Rcb8 25.Ra8 Ra8+=) 24...f6 (24...Nb4 25.Be4+/–) 25.Nc5 (25.e4 Nf4 26.Bc4 Bf7+–) 25...Bc5 (25...Qb6 26.Qc2 Nb4 27.Bh7 Kh8 28.Qe4 Bc5 29.dc5 Qc5 30.Bd4=) 26.dc5 Bf7 (26...Qe7 27.Ra7+/–) 27.Ra8 (27.Ra7!? Qe7 28.Qc2+/–) 27...Ra8+= 28.Bc3 (28.Qc4!?+=) 28...Ne3= 29.Bh7 Kh7 30.fe3 Kg8 (30...Qd3!? 31.Bb4 Qg6=+) 31.Rd1+= Qe7 32.Rd6 e5 33.Qd1 Bd5 34.Qg4 Ra2 (34...Ra3 35.Bb4 Re3 36.Qc8 Kh7 37.Qf5 Kg8=+) 35.e4+/– Rc2 (better is 35...Bc4+/–) 36.ed5+– Rc3 37.dc6 Rc5 (37...Rc1 38.Kh2 f5 39.Qf5 Rc5+–) 38.Rd7 Qf8 (38...Rc1 39.Kh2 f5 40.Qf5 Qd7 41.cd7+–) 39.c7 (39...f5 40.Qg6 Rc1 41.Kh2+–) 1–0. Kucharkowski,Jens – Bartel, Freital, 1986.

8.d4 dc4 9.bc6 bc6 10.Bc4 Rb8 11.Qe2 (11.Rb1 Nd5 12.Qc2 Qa5=+) 11...c5 (11...e5 12.Rd1 Qa5 13.Bb3=) 12.0–0 (12.Nb5 Be7=) 12...cd4 13.Nd4 (13.Nb5 Nb6 14.Bd3 e5 15.Na7 Bb7=+) 13...Bb7 (13...Ne5 14.Bb5 Bd7 15.Rab1=) 14.Ndb5 (14.Rfd1 Qb6=) 14...Bc5 15.Rfd1 Qb6 (15...Qa5 16.Rac1=) 16.Rab1 (16.Rac1 a6 17.Na4 Qc6=) 16...Rfc8 (16...Ne5 17.Bb3=) 17.Bb3 (17.Na4 Qc6 18.Qf1 Be7=) 17...Qc6 (17...a6 18.Nd4 Bd4 19.ed4=+ (< 19.Rd4 Rc3 20.Bc3 Qc6–/+)) 18.Qf1= Ba6 (18...a6 19.Nd4 Qc7 20.Qe2=) 19.a4 (19.Ba4 Qb7=) 19...Bb4 20.Rdc1 (20.Na2 Bf8 (20...Bb5? 21.ab5 Qb5 22.Qb5 Rb5 23.Ba4+–) 21.Bd4 Qa8=) 20...Qb6 (20...Bc3 21.Rc3 (< 21.Bc3 Bb5 22.ab5 Qb5=+) 21...Nc5 22.Rc4 (< 22.Na7 Bf1 23.Nc6 Rc6–+) 22...Rb5 23.ab5 Bb5 24.Bf6 Bc4 25.Bc4 gf6 26.Ra1=+) 21.Qd1= Bb7 22.Ba2 (22.Na2 Bc5=) 22...a6 23.Nd4 (23.Ba3 Ba3 (< 23...ab5 24.Rb4 Rc5 25.ab5+/–) 24.Na3 Qc5=) 23...Qa5=+ 24.Nde2 Qg5 25.Ng3 h5 26.Qd4 Bc5=+ 27.h4 Qg6 28.Qf4= Ba8 29.Rd1 Rb4 30.Qg5 Rg4 31.Qg6 Rg6 32.Nce2 Rg4 33.Nh5 Rg2 34.Kf1–/+ Nh5 35.Rd7–+ Bc6 36.Rd2 Rh2–/+ 37.Rc1 Rh1 38.Ng1 Ng3! 39.fg3 Rg1 40.Kg1 Be3 41.Kf1?? Bd2–/+ 42.Rd1 Ba5 43.Rc1 Bd7 44.Rc8 Bc8 45.Kf2 Bb4 46.Bd4 Bd7 47.Bc4 a5 48.Bb5 Bc8 49.Ke3 Bb7 50.g4 f6 51.h5 Kf7 52.Bb6 Bd5 53.Bd4 Bb3 54.Bb6 Bd1–+ 55.Kf4 Bd2 56.Kg3–/+ Bb3 57.Bc5 Bd5 58.Be2 e5 59.Ba6 Be1–+ 60.Kh2 Bb4 61.Be3 g6 62.hg6–/+ Kg6 63.Bd3 Kf7 64.Bf5 Bb3 65.Bd7 Ke7 66.Bb5 Kd6 67.Kg3 Be1 68.Kg2 Bd1 69.Kh3 Bf3 70.Ba7 Bc6 71.Bb8 Kd7 72.Bc6 Kc6 73.g5? fg5 74.Be5 Bd2 75.Bd4 Kd5 76.Bb6 Ke6 (better is 76...Kc4–+) ½–½. Schiefelbusch,Dirk (2130) – Lupor,Andre (2275), Dortmund, 2005.

8.d4 e5 9.c5 Bc7 10.Rb1 =.

8.d4 e5 9.c5 Bc7 10.Be2 =.

8.Be2 Nb6 A) 9.d3 A1) 9...Qc7 10.0–0 (10.bc6 bc6 11.0–0 Rb8 12.Rb1 Bd7 13.h3 h6 14.Qc2 a6 15.a4) 10...Rd8 11.Qb3 dc4 12.dc4 e5 13.Rad1 Be6 14.Ng5 Nbd7 15.Ne6; A2) 9...h6 10.0–0 (10.h3 dc4 11.0–0 cd3 12.Qd3 Bb4 13.bc6 Qd3 14.Bd3 bc6 15.Ne4; 10.Qd2 dc4 11.dc4 Qc7 12.0–0 Rd8 13.Qc2 e5 14.bc6 bc6 15.Rab1; 10.Qb3 a5 11.a4 dc4 12.dc4 e5 13.Rd1 e4 14.bc6 ef3 15.Bf3; 10.a4 dc4 11.dc4 cb5 12.cb5 Qe7 13.0–0 Rd8 14.Qc2 Nbd5 15.Nd5) 10...Qc7 11.a4 dc4 12.dc4 Nbd7 13.Qc2 Nc5 14.Rfd1 e5 15.Ba3; A3) 9...cb5 10.cb5 e5 11.0–0 Bf5 12.Qb3 Rc8 13.Rac1 Qe7 14.d4 e4 15.Ne5; A4) 9...Bd7 10.a4 (10.0–0 a6 11.e4 Bb4 12.ba6 Ra6 13.cd5 ed5 14.Qb3 c5 15.a3; 10.Qb3 cb5 11.cb5 Qe7 12.0–0 e5 13.a4 Rac8 14.a5 Be6 15.Ng5; 10.Qd2 cb5 11.Nb5 Bb5 12.cb5 Na4 13.Bd4 Qe7 14.Qc2 Nb6 15.0–0) 10...a5 11.ba6 ba6 12.0–0 a5 13.Rb1 Qc7 14.cd5 ed5 15.g3; B) 9.cd5 B1) 9...ed5 10.0–0 (10.Qc2 Re8 11.0–0 Nc4 12.Rab1 Rb8 13.Bc4 dc4 14.bc6 bc6 15.Ne2; 10.d3 c5 11.0–0 Be6 12.Qc2 h6 13.a4 Nbd7 14.a5 Qe7 15.Ra4; 10.bc6 bc6 11.Qc2 Re8 12.0–0 Nc4 13.Rab1 Qa5 14.d3 Nb2 15.Rb2) 10...Re8 11.d3 Qc7 12.h3 a6 13.bc6 bc6 14.Rb1 Rb8 15.Na4; B2) 9...cd5 10.Qb3 (10.Rc1 Bd7 11.Qb3 Qe7 12.0–0 Rac8 13.d3 e5 14.Rfd1 e4 15.de4; 10.d3 e5 11.0–0 Bf5 12.Qb3 Rc8 13.Rac1 Qe7 14.d4 e4 15.Ne5; 10.0–0 Nc4 11.Bc4 dc4 12.Qa4 Qc7 13.Rfd1 a6 14.d3 cd3 15.Rac1) 10...Bd7 11.0–0 Rc8 12.d3 e5 13.Rac1 Be6 14.Ng5 Bd7 15.Nf3.

8.Be2 dc4 9.Bc4 cb5 (9...Nb6 10.Bd3 (10.Be2 Bd7 11.0–0 Nbd5 12.Nd5 Nd5 13.bc6 Bc6 14.Nd4 Bd7 15.Qb3) 10...Bd7 11.0–0 c5 12.Qc2 c4 13.Be2 Rc8 14.e4 e5 15.a4; 9...h6 10.0–0 (10.bc6 bc6 11.Rb1 Rb8 12.0–0 Qa5 13.Qc2 Ba6 14.Ne4 Bc4 15.Qc4; 10.Rc1 c5 11.Bd3 a6 12.Qc2 Nb6 13.Qb3 Bb8 14.Nd1 ab5 15.Rc5; 10.Qe2 e5 11.e4 Nc5 12.bc6 bc6 13.0–0 Rb8 14.Rab1 Ne6 15.h3; 10.h3 Nb6 11.Bd3 c5 12.0–0 c4 13.Be2 e5 14.d4 ed4 15.Nd4) 10...Nb6 11.Be2 Bd7 12.bc6 Bc6 13.Nd4 Rc8 14.Rc1 Qe7 15.Qb3; 9...Qa5 10.0–0 (10.bc6 bc6 11.Rb1 Ba6 12.Qe2 Bc4 13.Qc4 Rab8 14.0–0 Nc5 15.Ba1; 10.Qe2 Nc5 11.bc6 bc6 12.0–0 Ba6 13.Ba6 Qa6 14.Qa6 Na6 15.Ne2; 10.Qc2 Nb6 11.Bd3 Bd7 12.Ng5 g6 13.Nce4 Ne4 14.Ne4 Be7 15.Bf6; 10.Rb1 Nb6 11.Bd3 Bd7 12.0–0 Rfc8 13.Qb3 cb5 14.Nb5 Bb5 15.Qb5) 10...Nb6 11.Bd3 Bd7 12.bc6 Bc6 13.Nd4 Rac8 14.Rc1 Bd5 15.Nd5; 9...g6 10.Rc1 (10.0–0 Nb6 11.Be2 Bd7 12.bc6 Bc6 13.Nd4 Rc8 14.Rc1 Bd5 15.Nd5; 10.bc6 bc6 11.0–0 Rb8 12.Rb1 Qa5 13.Qe2 Rd8 14.g3 Rb6 15.d4; 10.d4 Nd5 11.bc6 bc6 12.0–0 Rb8 13.Qc2 Qa5 14.Ne4 Be7 15.Ne5; 10.h3 Nb6 11.Bd3 Bd7 12.0–0 Rc8 13.Rc1 c5 14.Na4 Nfd5 15.Nb6) 10...Rb8 11.0–0 Nb6 12.Bb3 Bd7 13.Qe2 Qe7 14.bc6 bc6 15.d4) 10.Nb5 Bb8 11.Qc2 (11.a4 a6 (11...Nb6 12.Be2 Nbd5 13.0–0 Bd7 14.Rc1 a6 15.Nc3) 12.Nc3 Ne5 13.Ne5 Be5= 14.f4 Bd6 15.0–0) 11...a6=/+ 12.Nbd4 Nb6 (12...e5 13.Ne6 (13.Nf5 Nb6 14.Be2 g6 15.Ng3) 13...fe6 14.Be6 Kh8 15.Ba3+=) 13.Bd3 (13.Bb3 Bd6= (13...e5 14.Nf5 g6 15.Ng3) 14.Ng5 g6 15.h4; 13.Be2 Nbd5 14.Rc1 Bd6 15.0–0) 13...Bd7 (13...Nbd5 14.a3= (14.Ng5 g6 15.Qb3) 14...e5 15.Nf5; 13...e5 14.Nb3 Nbd5 15.Ba3) 14.h4 (14.Ng5 h6 (14...g6 15.Ba3) 15.Nh7 Nh7 16.Bh7 Kh8=; 14.Ba3 Re8 15.Ng5) 14...Bd6=/+ 15.Ng5 (15.0–0+=) 15...h6 16.Ndf3 Nbd5 (16...hg5?? a gruesome error 17.hg5 Ne4 18.Be4+–) 17.Bc3 (better is 17.Qb1!?+= has some apparent merit) 17...Rc8 18.Nh7 Nc3 19.Nf8? (better is 19.dc3!? Re8 20.Nf6 Qf6 21.Rd1 Qc3 22.Qc3 Rc3 23.0–0–/+) 19...Ncd5–+ (19...Kf8?! is clearly worse 20.dc3 Nd5 21.0–0+=) 20.Qb1 (20.Ne6 Be6 (20...fe6?! 21.Qb3–+) 21.Qb2 Nb4–+) 20...Qf8 21.Qb7 (21.0–0–+) 21...Nb4 22.Ne5 (22.0–0 is not the saving move 22...Rb8 23.Qa7 Bc5–+) 22...Rc7 (22...Be5 might be the shorter path 23.0–0 Ba1 24.Ra1–+) 23.Qf3 (23.Nd7 doesn't get the bull off the ice 23...Rd7 24.Qf3 Nd3 25.Kf1 Qc8–+) 23...Nd3 (better is 23...Be5 and Black takes home the point 24.Ba6 Ba1–+) 24.Nd3 Bc6 25.Qe2 Bb5 26.Rb1N Ne4 27.Rb5 ab5–+ 0–1. De Souza,Luiz Costa – Parente,Felipe Pullen, BRA–ch zt qual 2th, 1972.

8.Be2 dc4 9.bc6 A) 9...Nc5 10.Nb5 (10.Bc4 bc6 11.d4 Ncd7 12.0–0 Rb8 13.Qe2 Nb6 14.Bd3 Nbd5 15.Ne5; 10.0–0 Nd3 11.Bd3 cd3 12.Nb5 bc6 13.Nd6 Qd6 14.Qa4 Nd7 15.Rab1) 10...bc6 11.Nd6 Qd6 12.Bc4 Nd3 13.Bd3 Qd3 14.Bf6 gf6 15.Rc1; B) 9...bc6 10.Bc4 Rb8 11.Rb1 e5 12.Qc2 Nc5 13.0–0 Rb4 14.Be2 g6 15.d3.

8.Be2 Nc5 A) 9.Qc2 A1) 9...h6 10.bc6 (10.d4 Nce4 11.bc6 bc6 12.c5 Bc7 13.0–0 Rb8 14.Rab1 Bb7 15.Bd3; 10.0–0 Bd7 11.bc6 Bc6 12.Nd4 Rc8 13.Nc6 Rc6 14.Nb5 dc4 15.Na7; 10.a4 e5 11.d4 ed4 12.Nd4 Bd7 13.0–0 Rc8 14.bc6 bc6 15.Ba3; 10.Rc1 Bd7 11.0–0 Qe7 12.g3 Rab8 13.d4 Nce4 14.Ne5 Nc3 15.Bc3) 10...bc6 11.0–0 Rb8 12.d4 Nce4 13.c5 Bc7 14.Rab1 Qe7 15.Bd3; A2) 9...g6 10.bc6 (10.d4 Nce4 11.bc6 bc6 12.c5 Bc7 13.0–0 Nc3 14.Bc3 Ne4 15.Rfb1) 10...bc6 11.d4 Nce4 12.c5 Bc7 13.0–0 Rb8 14.Rab1 Qe7 15.Bd3; A3) 9...Qc7 10.d4 (10.0–0 Bd7 11.d4 Nce4 12.c5 Be7 13.Ne4 Ne4 14.a4 Bf6 15.Bd3; 10.g3 e5 11.bc6 bc6 12.cd5 Nd5 13.Ba3 Qe7 14.0–0 Bh3 15.Rfb1; 10.Rc1 Bd7 11.0–0 Nfe4 12.bc6 bc6 13.cd5 ed5 14.Ne4 de4 15.Ng5; 10.bc6 bc6 11.d4 Nce4 12.c5 Be7 13.Rb1 a5 14.0–0 Ba6 15.Ba6) 10...Nce4 11.c5 Be7 12.bc6 bc6 13.0–0 a5 14.Rab1 Ba6 15.Ba6; A4) 9...Bd7 10.bc6 (10.a4 e5 11.bc6 bc6 12.cd5 e4 13.Nd4 cd5 14.Ncb5 Be7 15.0–0) 10...Bc6 11.Nd4 Rc8 12.Nc6 Rc6 13.0–0 dc4 14.Bc4 Qa5 15.Bb5; B) 9.cd5 B1) 9...Nd5 10.Qc2 (10.bc6 bc6 11.d4 Nc3 12.Bc3 Ne4 13.Qc2 Nc3 14.Qc3 Rb8 15.0–0) 10...Nb4 11.Qb1 Nd5 12.Qc2 Nb4 13.Qb1 Nd5 14.Qc2 Nb4 15.Qb1; B2) 9...cd5 10.Rc1 (10.0–0 Bd7 11.Rc1 Rc8 12.d4 Nce4 13.Ne5 Nc3 14.Rc3 Rc3 15.Bc3; 10.Na4 Nfe4 11.0–0 f6 12.Nc5 Nc5 13.Rc1 Bd7 14.d4 Ne4 15.Nd2) 10...Bd7 11.0–0 Rc8 12.d4 Nce4 13.Qa4 a6 14.Ne5 ab5 15.Nb5; B3) 9...ed5 10.0–0 (10.Rc1 Bg4 11.0–0 Qb6 12.Ba3 Nfe4 13.Ne4 de4 14.Ne5 Be2 15.Qe2) 10...Nfe4 11.bc6 bc6 12.Qc2 Rb8 13.Rab1 Bg4 14.h3 Bf5 15.Ne4; C) 9.0–0 C1) 9...Nfe4 10.bc6 (10.Qc2 Bd7 11.bc6 Bc6 12.cd5 ed5 13.Nd4 Rc8 14.Nf5 f6 15.Ne4; 10.Rc1 Rb8 11.g3 Bd7 12.Ne4 de4 13.d4 ed3 14.Bd3 Qe7 15.Qc2) 10...bc6 11.Qc2 Rb8 12.Rab1 Bb7 13.d3 Nc3 14.Bc3 f6 15.Nd2; C2) 9...Qe7 10.Qc2 h6 11.bc6 bc6 12.d4 Nce4 13.c5 Bc7 14.Ne5 Bb7 15.Ne4; C3) 9...Bd7 10.Rc1 (10.bc6 Bc6 11.Nd4 Rc8 12.Nc6 bc6 13.d4 Nce4 14.c5 Bc7 15.f3; 10.cd5 Nd5 11.Nd5 cd5 12.Ne5 Rc8 13.Rc1 a6 14.ba6 ba6 15.d4) 10...cb5 11.cb5 Rc8 12.d4 Nce4 13.Ne5 Nc3 14.Rc3 Rc3 15.Bc3.

7.d4 0–0

8.c5 Bc7 9.Qc2 Qe7 10.Nbd2 e5 11.de5 Ne5 12.Be5 Be5 13.Rb1 Bf5 14.Qf5 (14…Bc3 15.Bd3+–) 1–0. michaelbuss (2245) – Curlywurly (2645), ChessWorld.net, 2003.

8.c5 Bc7 9.Nbd2 Qe7 10.bc6 bc6 11.Qa4 =.

8.c5 Bc7 9.Nbd2 Re8 10.Be2 (10.Rb1 Nb8=) 10...e5 (10...cb5 11.Bb5 Rb8 12.Rc1+=) 11.de5 Ne5 12.Ne5 Be5 13.Be5 Re5 14.0–0 Qc7 (14...cb5 15.Bb5 Bg4 16.Qa4=) 15.Rc1 Bd7 (15...cb5 16.Nf3 Rh5 17.Bb5=) 16.a4 Rae8 (16...Re7 17.Nb3=) 17.Re1 (17.Nf3 R5e7=) 17...Rg5 (17...R5e6 18.Nf3=) 18.Nf1 (18.Nf3 Rh5=) 18...Qa5 19.Qc2 (19.Qb3 Re4=) 19...Rge5 (19...Bf5 20.Qd2 Bh3 21.g3= (21.Qa5?? Rg2 22.Kh1 Ne4 23.Qa7 Nf2)) 20.Nd2 (20.Qd2 Qa4 21.Ra1 Qh4=) 20...Bf5 21.Qb2 R5e7 (21...Be4 22.Red1=) 22.Nb3 (22.Red1 Bg4 23.Bg4 Ng4=) 22...Qc7 (22...Qb4 23.Red1 Qh4 24.Nd4+=) 23.Nd4+= Bd7 24.Qb4 Bg4 (24...Ne4 25.Bd3+=) 25.b6 (25.Bd3 Bd7+=) 25...ab6 26.cb6 Qb8 27.Bd3 Bd7 28.h3 Ne4 29.a5 c5 30.Rc5 Nc5 31.Qc5 Re5 32.Qc7+/– Qc7 33.bc7 Rc8 34.Rc1 Re7 35.a6 Bc6 36.Nf5 Rd7+= 37.Bb5 Rdc7= 38.Nd6 ba6?? 39.Nc8+– ab5 40.Nb6?? (better is 40.Rc6 Rc6 41.Ne7 Kf8 42.Nc6+–) ½–½. Borrmann,Fritz – Blankenberg,Bruno, TT–15 ETC, 2007.

8.c5 Bc7 9.Be2 Ne4 10.0–0 f5 11.Nc3 Qf6 12.Rb1 (12.bc6 bc6 13.Qa4 e5=) 12...Qh6 (12...Ndc5 13.Qc1 Nc3 14.Bc3+=) 13.bc6 bc6 14.Qa4 e5 (14...Nd2 15.h3 Nb1 16.Qc6 Nc3 17.Bc3+=) 15.Ne4 fe4 16.Ne5 Ne5 17.de5 Rb8 18.Bd4 (18.Qa7? Rb2 19.Qc7 Re2–+) 18...Rb1 19.Rb1 a5 20.Rf1 ½–½. mrkt – brianalbus, internet, 2006.

8.c5 Be7 9.a4 (9.Nc3 e5=) 9...a6 (9...e5 10.Be2=) 10.b6 (10.Bd3 ab5 11.ab5 Ra1 12.Ba1 cb5=) 10...Re8 (10...e5 11.Be2=) 11.Be2 (11.Bd3 e5 12.Ne5 Bc5 13.dc5 Ne5 14.Be5 Re5=) 11...h6 12.Nc3 Nh7 (12...e5 13.0–0+= (< 13.Ne5 Ne5 14.de5 Nd7=+)) 13.Qc2 (13.0–0 e5+=) 13...f5 (13...e5 14.0–0+=) 14.Bd3 (14.0–0 Ng5+/–) 14...Ndf8 (14...g6 15.h4+/–) 15.Ne5 (15.0–0 Nd7+/–) 15...Bf6 (15...Nd7 16.f4+/–) 16.Ne2 (16.0–0 Qe7 17.f4 Bh4+/–) 16...Be5 (16...Nd7 17.0–0+/–) 17.de5 Ng6 (17...Ng5+/–) 18.g4 (18.0–0 Ng5+/–) 18...Rf8 (18...Ng5 19.f4 Ne4 20.Ng3+=) 19.Ng3 (19.0–0–0 Ng5 20.gf5 ef5+/–) 19...Nh4 (19...Ng5 20.f4 (< 20.gf5 Nf3 21.Kd1 Nge5=+) 20...Nf3 21.Kd1+/–) 20.0–0–0 (20.f4 Nf3 21.Kd1 g6+/–) 20...Ng5 (20...Qe7 21.f4+/–) 21.f4 Ne4 (21...Ngf3 22.gf5 ef5 23.Rdf1+–) 22.Ne4 (22.Be4 fe4 23.Ne4 Qe7+–) 22...fe4 (22...de4!? 23.Be4! Qe7+–) 23.Be4! Qe7 (23...de4 24.Rd8) 24.Bd3 Bd7 25.Bd4 (25.a5 Kh8+–) 25...Be8 (25...Nf3 26.Rhf1 Nd4 27.ed4+–) 26.Rhg1 g5 27.f5 ef5 28.gf5 Nf3 29.f6 Qf7 30.Bf5 Nd4 31.ed4 Kh8 32.h4 Rg8 33.hg5 Rg5 34.Rg5 hg5 35.Rh1 Kg8 36.Rh7 (36...Qh7 37.Bh7 Kf7 38.Qg6 Ke6 39.f7 Ke7 40.Qd6 Kf7 41.Qf6; 36.Be6 a5 37.Qh7 Kf8 38.Qh8 Qg8 39.Qg8#) 1–0. Nordbrink,Joergen – Mehl, 1980.

6.Nf3 Qe7

7.Nc3 Nb6 8.cd5 ed5 9.a4 c5 10.a5 Nbd7 11.Be2 0–0 =.

7.d4 0–0 8.c5 Bc5 (8...Nc5 9.dc5 Bc5 10.Bd3+/–) 9.dc5+– Qc5? (better is 9...Nc5 10.Bd4 a6+/–) 10.Ba3 Qb6 11.Bf8 Nf8 12.Be2 (12.Nc3 Qd6+–) 12...Ng6 (12...Qd6 13.Nc3+–) 13.0–0 Bd7 14.a4 Ng4 15.Qd4 Qd4 16.Nd4 e5 17.Nb3 c6 18.Nc5 Nf6 19.Nb7 Rb8 20.Nc5 Be8 21.Rc1 Ne7 22.bc6 Bc6 23.Bb5 Bb5 24.ab5 (24...Rb5 25.Ra7+–) 1–0. Ohlsson,Kurt – Brissman,Anders, corr SSKK Sweden, 1985.

7.cd5 ed5 8.Qb3 Nc5 9.Qc2 0–0 10.Be2 Nce4 11.d3 Nf2 12.Bf6 Qf6 13.Kf2 Qa1 14.d4 Bf5 15.Qb3 c6 16.Rd1 Bb4 17.Qb4 Qa2 18.Nc3 Qc2 19.Ne1 Qd1 20.Nd1 a5 21.ba6 ba6 22.Nc3 Bd7 23.Qa5 h6 24.Nd3 Ra7 25.Nc5 1–0. Deb,Akash (1660) – Pearson,Michael (2560), California, 1998.

7.Be2 0–0 8.0–0 b6 (8...dc4 9.Bc4 e5 10.d3=+) 9.d4 Bb7 10.a4 (10.Ne5 a6=) 10...dc4 11.Nbd2 c3 12.Bc3 Ne4 (12...Nd5 13.Qc2=) 13.Ne4+= Be4 14.Nd2 Bb7 15.Bf3 Bf3 16.Qf3 e5 (16...a6 17.Qc6=) 17.d5 f5 18.Nc4 e4 19.Qe2 Nc5 20.a5 f4 (20...ba5 21.Ra5 Nd3 22.f3+=) 21.ef4 (< 21.Nd6 f3 22.Nc8 Rac8= (22...fe2 23.Ne7 Kf7 24.Rfe1 Ke7 25.Bg7+/–)) 21...Bf4 22.Bb4 Rfe8 (22...Rad8 23.Qh5+=) 23.g3 (23.Qg4 Qf7 24.Bc5 bc5+=) 23...Bd6 24.Nd6 (24.f3 ba5 25.Ra5 Nb7 26.Bd6 cd6+=) 24...cd6= 25.ab6 ab6 26.Bc5 dc5 27.Ra6 Rad8 28.Rb6 Rd5 29.Qc4 Qf7 30.Rc6 Rf5 31.Qf7 Kf7 32.Rb1 Rb8 (32...Rd8 33.b6 Rfd5 34.Kf1=) 33.b6+= Rf6 (better is 33...Re5!?+=) 34.Rc7+/– Kg6 (34...Ke6 35.b7 (< 35.Rc5 Kd6 36.Rc2 Rb7+/–) 35...Kd6 36.Rc8+– (36.Rg7?! h6+/–)) 35.b7+– Rf7 36.Rb6 Rf6 37.Rb5 Rff8 (37...Rf7 38.Rc6 Kf5 39.Rcc5 Ke6+–) 38.Rbc5 (38...Rf7 39.R5c6 Rf6 40.Rf6 Kf6 41.g4+–) 1–0. Franke – Dannhauer, corr DDR, 1990.

7.Nc3 0–0

8.d4 dc4 9.Bc4 Nb6 10.Bd3 Nbd5 11.0–0 Nb4 =.

8.d4= dc4 9.Bc4 e5 10.Qc2 =.

8.d4= c5 9.bc6 bc6 10.c5 Bc7 11.Be2 (11.Qa4 Bb7=) 11...Rb8 12.Rb1 e5 13.0–0 Ne4 14.Ne4 de4 15.Ne5? (better is 15.Nd2 ed4 16.Bd4 Nc5 17.Qc2=) 15...Ne5–+ (< 15...Be5 16.de5 Qc5 17.Qa4+=) 16.de5? (16.h3–+) 16...Rb2 (16...Rb2 17.Rb2 Qe5–+; 16...Be5?! 17.Be5 Rb1 18.Qb1 Qe5 19.Qb4=) 17.Rb2 Qe5 0–1. Neuhof,KE – Timmerman,AC, corr ICCF EU/M, 1975.

8.cd5 ed5 9.Qb3 (9.Be2 Re8=+ 10.0–0 a6 11.Rc1 Nc5=) 9...c6 (9...Nb6 10.Be2=+ c5 11.bc6 bc6=+) 10.bc6 (10.Be2 Nb6=+ 11.Na4 c5=) 10...bc6 11.Be2 (11.Qc2 c5=+) 11...Ne5 (11...Rb8 12.Qc2=+) 12.Nd4 (12.Ne5 Be5 (< 12...Qe5 13.Nb5 Qe6 14.Nd6 Qd6 15.Ba3+/–) 13.Ba3 Bd6 14.Bd6 Qd6=) 12...Rb8=+ 13.Qc2 c5 14.Ndb5 d4 15.Nd1 (15.Nd6 Qd6 16.Nb5 Qc6 17.ed4 Qg2–/+) 15...Re8 (15...Rd8 16.Rc1 Bg4 17.Bf1–/+) 16.Nd6 (16.Rc1!? Bb7 17.Nd6 Qd6 18.Qc5 Qc5 19.Rc5+=) 16...Qd6=+ 17.d3 (better is 17.Rc1!? Qd5 18.Bf1=+) 17...Ba6 (17...c4 18.0–0–+) 18.f4 (18.Rc1!? Qd5 19.0–0 de3 20.Be5 ef2 (20...Re5?! 21.fe3 Qe6 22.a3=) 21.Nf2 Re5–+) 18...Nd3! 19.Bd3 Bd3 20.Qd3 Rb2! 21.0–0 (21.Nb2 Re3) 21...Rb6 (21...Rb7 22.ed4 Qd4 23.Qd4 cd4 24.Nf2–+) 22.ed4 Rb4 (22...Qd4 23.Qd4 cd4 24.Rc1–+) 23.Nf2 Rd4 24.Qa3 Rf4 (better is 24...Qe7–+) 25.Rac1? (better is 25.Qa7!? Qe5 26.Rab1–/+) 25...Rf2!–+ 26.Rf2 (26.Rf2 Ng4; 26.Kf2 Qd4) 26...Ng4 27.Qg3 Qg3 28.hg3 Nf2 29.Kf2 Rc8 30.Rb1 c4 31.Ke2 c3 32.Kd3 c2 33.Rc1 f5 34.Rc2 Rc2 35.Kc2 g5 36.Kd3 Kf7 37.Kd4 Ke6 38.a4 h5 39.a5 h4 40.gh4 gh4 41.Ke3 Kd5?? 42.Kf4= Kc5 43.Kf5 Kb5 44.Kg5 Ka5 45.Kh4 Kb6 46.g4 Kc7?? 47.g5+– 1–0. Wolf – Ketzscher,Roland, corr, 1978.

8.cd5 Nd5 9.Ne4 e5 10.Rc1 N7f6 11.Nd6 cd6 =.

8.Be2 c5 9.bc6 bc6 10.Rb1 =.

8.Be2 c6 9.a4 e5 (9...dc4 10.Bc4 (10.Qc2 e5 11.bc6 bc6 12.Bc4 Nb6 13.Be2=+; 10.0–0 e5 11.bc6 bc6 12.Qc2 Rb8 13.Rab1=+; 10.bc6 bc6 11.Bc4 e5 12.d3 Nb6 13.Bb3=+; 10.Rb1 e5 11.bc6 bc6 12.Qc2 Ba6 13.Na2=+) 10...e5 11.bc6 bc6 12.Qc2=+ (12.d3 Rb8 13.Rb1=+) 12...Rb8 13.Rb1=+) 10.d4 (10.cd5 cd5 11.0–0 Re8= 12.a5 e4 13.Nd4=) 10...ed4 (10...dc4!? A) 11.bc6 bc6 12.0–0 (12.Bc4 ed4 13.Nd4 Ne5=+) 12...Rb8 13.Rb1=+; B) 11.0–0 Qe6 12.bc6 bc6 13.Qc2=) 11.Nd4= Ne5 12.cd5 cd5 13.0–0 (13.Rc1 Be6=; 13.a5=) 13...Neg4 (13...Be6 14.Rc1=) 14.h3+= Ne3 15.fe3 Qe3 16.Kh1 Qg3 17.Nf3 Bh3! 18.gh3 (18.gh3 Qh3) 18...Qh3 19.Kg1 Qg3?? (better is 19...Ng4 20.Nd5 Bh2 21.Kh1 Bf4 22.Kg1 Be3 23.Ne3 Ne3–+) 20.Kh1= Ng4 21.Nd5 Qh3 22.Kg1 Bh2 23.Kh1 Bf4 24.Kg1 Be3 25.Ne3 Ne3 26.Rf2?? (26.Kf2 Nd1 27.Rad1 Qe6–+) 26...Qg3 27.Kh1 Nd1 28.Rg2 Qh3 29.Rh2 Qh2! 30.Kh2 Nb2 31.Ra2 Na4! 32.Ra4 Rfe8 33.Nd4 Re4 34.Bf3 Rf4 35.Bb7 Rd8 36.Ra7 Rfd4 37.Bc6 Rb4 0–1. Gerold – Ketzscher,Roland, corr JBDDR'2381, 1981.

8.Be2 c6 9.bc6 bc6 10.Rb1 e5 11.cd5 cd5 12.Nb5 a5 13.Nd6 =.

8.Be2 c6 9.d4 dc4 10.Bc4 e5 11.bc6 bc6 12.0–0 e4 13.Nd2 =.

8.Be2 dc4

9.0–0 Nb6 10.a4 e5 11.a5 Nbd7 12.Bc4 e4 13.Nd4 =.

9.Qc2 Nb6 10.a4 a5 11.ba6 Ra6 12.a5 Nbd5 13.Bc4 =.

9.Bc4 Nb6 10.Bd3 e5 11.Qc2 Bg4 12.Ng5 h6 13.Nh7 =.

9.Bc4 e5

10.0–0 e4+= 11.Nd4 Ne5 12.Be2 Rb8 =.

10.0–0 e4 11.Nd4 Ne5 12.Be2 Nd3 13.Bd3 =.

10.0–0 e4+= 11.Ne1 Nc5 (11...Nb6 12.Be2–/+) 12.Na4 (12.d4 Ncd7+=) 12...Ng4 (12...Bh2 13.Kh2 Ng4 14.Kg1 Na4 15.Qa4 Qd6–+) 13.f4+= ef3 (13...Rd8 14.h3 Nf6 15.Nc5 Bc5 16.Nc2=) 14.Nf3= Nh2 15.Nc5? (better is 15.Nh2 Bh2 16.Kh2 Qh4 17.Kg1 Qc4 18.Qh5=) 15...Nf1–+ 16.Nd3 (16.Qf1 Bc5 17.Qd3 Qd6–/+) 16...Nh2! 17.Nde5 (17.Nh2 Qh4 Double attack (17...Qh4 Decoy)) 17...Nf3 18.Nf3 Bg4 (18...Qe4 19.Qb3 Be6 20.Bd3–+) 19.Qb3 (19.Bd5 Rad8 20.Qb3 Bb4–+) 19...Bf3 20.gf3 Qg5 (20...Rad8 21.Kf1 Qh4 22.d4–+) 21.Kf1 (21.Kf2 Qg3 22.Ke2 Qh2 23.Kd1 Rad8–+) 21...Qg3 (better is 21...Rad8!? 22.Rd1 Bg3 23.d4–+) 22.f4 Be7 (22...Rab8 23.Rc1–+) 23.Re1 (23.Be5 Bh4 24.Ke2 Qg2 25.Kd1 Rfd8 26.Bf7 Kf8–+) 23...Qf3 24.Kg1 Rad8 (24...Qg4 25.Kf1 Rad8 26.Re2 Qf3 27.Kg1–+) 25.Re2 Rd6 (25...Rd6 26.Rg2 Rg6 27.Rg6 hg6–+) 0–1. Weigel,Hans Juergen (1935) – Koepcke,Hans Peter (2095), Hamburg–ch qual1, 2003.

10.Qc2 Nb6 11.Bd3 Bg4 12.Ng5 h6 13.Nh7 =.

10.Qc2 Nb6 11.Bd3 g6 =.

10.d3 Nb6 11.Bb3 a6 12.0–0 Bg4 13.a4 =+.

10.d4=+ e4 11.Nd2 Nb6 12.Be2 Bf5 13.0–0 =.

10.e4 Nb6 11.Be2 Rd8 12.Qc2 Nh5 13.a4 =.

7.Nc3 dc4

8.Qc2 e5 9.Bc4 Nb6 10.Be2 0–0 11.d4 e4 =.

8.Bc4 Nb6 9.Bb3 e5 10.0–0 0–0 11.Qc2 Bg4 =.

7.Nc3 c5

8.Qb3 Nb6 9.d3 0–0 (9...dc4 10.dc4 e5 11.e4= 0–0 12.Be2 Bg4=) 10.Be2 Rd8 11.0–0 Bc7 (11...dc4 12.dc4 e5= (12...a5 13.Qc2=)) 12.Rad1 (12.a4 d4 13.ed4 cd4=; 12.cd5 ed5=) 12...d4 13.ed4 cd4 14.Nb1 (14.Ne4 Ne4 15.de4 e5=+) 14...e5=+ 15.Rfe1 Nbd7 16.Bf1 Nc5 (16...Qd6 17.Ba3 Qb6 18.Be2=+) 17.Qc2= Bg4 18.Nbd2 Qd7 (18...Ne6 19.h3 Bf3 20.Nf3=+) 19.h3 (19.Ba3 b6=) 19...Bf3=+ 20.Nf3 Re8 21.Ba3 b6 (21...Qd6 22.Bb4=+) 22.g3 Rad8 (22...Rab8 23.Bg2=) 23.Bb2 (23.Bc5 bc5 24.Bg2=) 23...e4 (23...Qd6!?=) 24.de4+= d3 25.Qb1 (25.Qc3!?+=) 25...Nfe4= 26.Bg2 (26.Nd4 Ng5 27.Bd3 Nh3 28.Kf1 Nd3 29.Re8 Re8 30.Qd3 Be5=) 26...f5 (26...Qf5 27.Re3=+) 27.Nd4 (27.Bd4 f4 28.g4 Re6=+) 27...Qf7 28.Nc6 (28.a3!?=+) 28...Rd7–/+ 29.Ba1 (29.Na7 Bg3 30.fg3 Ra7 31.Rd3 Nd3 32.Qd3 Ra2–/+) 29...Qc4 30.f3 (30.Bf1!?–/+) 30...Bg3–+ 31.fe4 Be1 32.Re1 Ne4 33.Qb3 Qb3 34.ab3 d2 35.Rd1 Rd3 36.Bf1?? Rg3 37.Kh2 Re3 38.Bc4 Kf8 39.Bb2 g5 40.Ba3 Kg7 41.Bb4 Rh3 42.Kh3 Nf2 43.Kg2 Nd1 44.Bd2 Ne3 45.Be3 Re3 46.Na7 Re8 47.Nc6 Kf6 48.Nb4 Ke5 49.Nd5 Re6 50.Ne3 Rf6 51.Kf2 h5 52.Be2 g4 53.Ng2 f4 54.Nh4 Rd6 55.Bc4 Kf6 56.Ng2 Kg5 57.Ne1 Rd2 58.Kg1 h4 59.Bf1 f3 60.Nd3 g3 61.Ne5 Kf4 62.Ng6 Kg5 63.Ne5 f2 64.Kg2 Rd1 65.Nf3 Kg4 66.Ne5 Kf5 67.Nc4 Ke4 68.Nb6 Rf1! (69.Nd5 Rg1 70.Kh3 f1Q 71.Kh4 Rh1 72.Kg4 Qf3 73.Kg5 Qf5#) 0–1. Crowl,Frank A – Purdy,Cecil, Melbourne, 1932.

8.bc6 bc6 9.Rb1 0–0 10.d4 Bb4 11.cd5 cd5 12.Bd3 a5 =.

8.bc6 bc6 9.d4 Rb8 10.Rb1 Bb4 11.cd5 cd5 12.Bd3 Qd6 =.

8.bc6 bc6 9.Nd4 Nb8 10.cd5 ed5 11.Bd3 0–0 12.Nf5 Bf5 =.

8.d4 0–0 9.dc5 Nc5 10.cd5 Rd8 11.Qd4 e5 12.Qd1 Bg4 =.

8.d4 0–0 9.cd5 ed5 10.dc5 Nc5 11.Nd5 Nd5 12.Qd5 Na4 =.

8.d4 dc4 9.Bc4 0–0 10.0–0 Rd8 11.dc5 Nc5 12.Qe2 Bd7 =.

8.d4 dc4 9.Bc4 Nb6 10.dc5 Bc5 11.Bd3 e5 12.Qc2 Bg4 =.

8.d4 dc4 9.Bc4 cd4 10.Qd4 e5= 11.Qh4 Nb6 12.Bb3 Be6 =.

8.d4 dc4 9.Bc4 e5 10.0–0 e4 11.Ng5 0–0 12.Qb1 Nb6 =.

8.d4 cd4 9.Nd4 Nb6 10.cd5 Nbd5 11.Nd5 Nd5 12.Qg4 Bb4 =.

7.d4 dc4

8.Qc2 a6 9.Bc4 ab5 10.Bb5 0–0 11.0–0 e5 =.

8.Nc3 Nb6 9.Nd2 Bb4 10.a3 Bc3 11.Bc3 Bd7 =.

8.Bc4 0–0= 9.0–0 e5 10.de5 Ne5 11.Ne5 Be5 =.

8.Nbd2 e5 9.de5 Ne5 10.Ne5 Be5 11.Be5 Qe5 =.

8.Nfd2 a6 9.Nc3 0–0 10.Nc4 Bb4 11.ba6 b5 =+.

7.Be2 dc4=+

8.0–0 0–0 9.Bc4 Nb6 10.Be2 e5 11.d4 e4 12.Ne5 =.

8.0–0 a6 9.ba6 ba6 10.Bc4 Rb8 11.Qc2 Bb7 12.d3 =.

8.0–0 Nb6 9.Ne5 0–0 10.Nc4 Nc4 11.Bc4 Rd8 12.d3 =.

8.0–0 e5 9.Bc4 e4 10.Nd4 Nb6 11.Be2 Qe5 12.g3 =+.

8.a4 0–0 9.Na3 c3 10.dc3 e5 11.Nc4 Ne4 12.Nd6 =.

8.a4 e5 9.Na3 e4 10.Nd4 Ne5 (10...c3 11.dc3 Ne5 12.0–0=+) 11.Nc4= Nc4 12.Bc4 0–0 (better is 12...Ng4=) 13.0–0 (better is 13.Qc2!?=) 13...Bh2!–/+ 14.Kh2 Ng4 15.Kg3 h5 (15...Qd6 16.f4 ef3 17.Kf3 Ne5 18.Kf2 Nc4–/+) 16.Ne6? (better is 16.Qe2 h4 17.Kh3=) 16...Be6–+ (16...Be6 17.Be6 Qd6 (17...fe6?! 18.f3 ef3 19.gf3 Qd6 20.f4–+) 18.f4 ef3 (18...Qe6?! 19.Rc1–/+; 18...fe6 19.Ba3 c5 20.bc6 Qc6 21.Bf8 Rf8 22.Qb3+=) 19.Kf3 Nh2 (19...Qe6?! 20.Ke2–/+; < 19...fe6 20.Ke2 Rf1 21.Qf1–+) 20.Ke2 Nf1–+ (20...fe6?! 21.Rf8 Qf8 22.Qc2=; 20...Qe6?! 21.Rh1 Qc4 22.d3 Qg4 23.Kf2 Qf5 24.Ke2=+); 16...fe6?! 17.f4 ef3 18.gf3–/+) 17.Be6 Qd6 (18.f4 ef3 (18...Qe6?! 19.Rc1–/+; 18...fe6 19.Ba3 c5 20.bc6 Qc6 21.Bf8 Rf8 22.Qb3+=) 19.Kf3 Nh2 (19...Qe6?! 20.Ke2–/+; 19...fe6 20.Ke2 Rf1 21.Qf1–+) 20.Ke2 Nf1–+ (20...fe6?! 21.Rf8 Rf8 22.Ba3=; 20...Qe6?! 21.Rh1 Qc4 22.d3 Qg4 23.Kf2 Qf5 24.Ke2=+); < 17...fe6 18.f3 ef3 19.gf3 Qd6 20.f4–+) 0–1. Daehne,Armin – Reineking,Alfred, corr ICCF, 1980.

8.Qc2 0–0 9.Bc4 Nb6 10.Be2 e5 11.d4 e4 12.Ne5 =.

8.Qc2 Nb6 9.a4 e5 10.a5 Nbd5 11.Bc4 Nb4 12.Qc3 =.

8.Qc2 e5 9.Bc4 0–0 10.Nc3 Nb6 11.Bd3 Bg4 12.Ng5 =.

8.Bc4 0–0=+ 9.0–0 Nb6 10.Be2 e5 11.d3 Rd8 12.Nbd2 =+.

8.Bc4 Nb6 9.Bb3 0–0 10.0–0 Bd7 11.a4 a6 12.Nc3 =.

8.Bc4 e5 9.Qc2 Nb6 10.Be2 0–0 11.d4 e4 12.Ne5 =.

6.f4 0–0

7.Nf3 a6 8.Nc3 =+.

7.Nf3 Nb6 8.cd5 ed5 9.Bd3 =+.

7.Nf3 dc4 8.Bc4 Nb6 9.Be2 Bd7 10.0–0? a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Qe7 14.Qb3 Ra8 15.Bb2 Na4 16.Be5 Nc5 17.Bd6 cd6 (17...Nb3?? 18.Be7 Nd5 19.Ba3+–; 17...Qd6?! 18.Qc2=) 18.Qb4 Ra4 19.Qb2 Nfe4? (19...Ra5 20.d4 Nce4 21.Nbd2=) 20.Nc3?? (better is 20.d4+–) 20...Nc3= 21.Qc3 Ne4 22.Qb3 (better is 22.Qc7 Ra2 23.Qb7 Nd2 24.Nd2 Rd2 25.Ra1+/–) 22...Ra5?? The isolani on b5 becomes a target (better is 22...Ra8=) 23.Qb4+– b6 24.d4?? (better is 24.Qe4 Bb5 25.Bb5 Rb5 26.Ra1+–) 24...Qe8 25.Rb1 d5 26.Ne5 f6 27.Nd7 Qd7 28.Rc1 Ra2 29.Bf3 Nd6 30.Rc6 Nc4 31.h3 Ne3 32.Rb6 Nc2?? (32...Kf7 33.Ra6 Nc2+–) 33.Qc3 (33.Rb8 Qd8 34.Rd8 Kf7 35.Bh5 g6 36.Qf8) 33...e5?? 34.fe5+– fe5 35.Rb8 Kf7+– 36.Qc5 e4?? 37.Bg4 Qe6 38.Rb7 Kf6 39.Rb6 Qb6 40.Qb6 Kg5+– 41.Qe6 Kf4 42.Qd5 Ke3 43.Qg5 Kd4 44.Qg7 Kd3 45.Qh7 1–0. carocan (1685) – check100 (1740), kurnik, 2012.

7.Nf3 c5

8.Na3 Qe7 9.Be2= e5 10.fe5 Ne5 11.0–0 (11.cd5 Nd5 12.0–0 Nf3 13.Bf3 Be6=) 11...d4=+ 12.Qb3 (12.ed4 cd4 13.Qb3 Ne4=+) 12...Ne4 (12...Nfg4 13.g3=+) 13.Rad1 (13.Qc2 f5=+) 13...Nf3 (13...Qc7 14.b6 Qb8 15.ed4 Nf3 16.Bf3 Bh2 17.Kh1 Ng3 18.Kh2 Nf1 19.Kg1–/+) 14.Bf3=+ (< 14.Rf3 Qh4 15.h3 Nd2 16.Rd2 Qe1 17.Bf1 Qd2 18.ed4 cd4–+) 14...Qh4 15.g3 (15.h3!? Bh3 16.Be4 (16.gh3?? Qg3 17.Kh1 Qh2) 16...Bg2 17.Rf4 (17.Bg2?? Bh2 18.Kh1 Bg3 19.Bh3 Qh3 20.Kg1 Qh2) 17...Bf4 18.Bg2 de3 19.de3=+) 15…Ng3!–+ (16.Rf2 Ne4 17.Be4 Qe4 18.ed4 cd4–+) 0–1. Lopez Esnaola,Benito – Schwanfelder,Martin, corr ICCF EU–ch M, 1976.

8.Na3 Be7 9.Be2 =.

8.d4 b6 9.Nc3 Bb7 10.Be2 Re8 11.0–0 Ng4 (better is 11...Qc7=+) 12.Ne5?? (better is 12.Qd2=) 12...Ne3–+ (12...Be5?! A) 13.fe5? Ne3 14.Qd2 cd4 15.Qd4 Qg5–+ (15...Nf1?! 16.Rf1 Qg5 17.Ne4 de4 18.Qd7–+); B) 13.Bg4 Bf6 14.Bf3=; 12...Nde5?! 13.de5 Ne3 14.Qd3 Nf1 15.Rf1–+) 13.Qd3 Nf1 14.Rf1 cd4 15.Nc6 Qf6 (15...dc3?! 16.Nd8 Rad8 17.Qc3=) 16.Nd4 Bc5 (better is 16...Bf4 17.Nc6 Qh6–+) 17.f5 (17.Na4–+) 17...e5 (better is 17...Qd4 18.Kh1 Qd3 19.Bd3–+) 18.Kh1 (18.Nd5 Bd5 19.cd5 Bd4 20.Bd4 ed4–+) 18...ed4 (19.Nd5 Qh4–+; better is 18...dc4!? 19.Qc4 ed4 20.Nd5–+) 0–1. zobec – PunisherProfits, Live Game Caissa's Web, 2004.

8.Be2 Nb6 =+.

8.Be2 dc4 9.Na3 =.

8.Be2 d4 9.0–0= Qc7 10.g3 (10.ed4 cd4 11.Bd4 Bf4=) 10...e5 (10...de3!? 11.de3 e5=+) 11.fe5= Ne5 (11...Be5 12.Ne5 Qe5 13.Bd3+=) 12.ed4+= cd4 13.Ne5 (better is 13.Bd4!? Bh3 14.Re1+=) 13...Be5=+ 14.d3 (14.Qb3!?=+) 14...Bg3!–/+ 15.Bd4? (15.hg3 Qg3) 15...Bh2–+ 16.Kh1 Be5 (better is 16...Qd7 17.Bf6 Qh3–+) 17.Be5 Qe5 18.Nd2 Re8 19.Bf3 Qf4 (19...Qg3 20.Nb3–+) 20.Bg2 (better is 20.Nb3 Qh4 21.Kg1 Qg3 22.Bg2–+) 20...Qh6 21.Kg1 Qe3 (22.Kh1 Ng4–+) 0–1. Sternik,Ryszard – Laber,Seweryn, corr Poland, 1987.

8.Be2 d4 9.ed4 cd4 10.Nd4 (10.g3 e5 11.fe5 Ne5 12.Ne5 Be5–/+) 10...Bf4=+ 11.0–0 Qc7 12.Nf3 (12.g3 Bd6 13.Nb3 e5=+) 12...b6 (12...e5 13.g3 Bh6 14.Nh4=+) 13.Qe1 (13.Ba3 Rd8=+) 13...Bb7 14.g3 (14.Kh1 Rfd8=+) 14...Bh6 15.d4 Ng4 16.Qc3 (16.Na3 Ne3 17.Rf2 Nf6=+) 16...Ndf6–/+ 17.Nbd2 Nh5 18.Kg2?? (better is 18.Ng5 Ng3! 19.Qg3 Qg3 20.hg3 Bg5 21.Bg4 Bd2 22.Kf2–/+) 18...Nh2!–+ 19.d5 (19.Kh2 Qg3) 19...Qg3 20.Kh1 Ng4 (21.Ne4 Qh3 22.Kg1 Nf4–+) 0–1. Dernovoy,IN – Sokolov,I (2650), corr URS (year?).

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

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