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TESTF270 Release 2020-11-26
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 Nc6 5.Bb2 0–0 6.e3 d5 7.cd5 Nd5 8.Nf3 Re8 9.Be2 Re3!?

Table of contents:

(...)

10.fe3 Bd6?? 11.0–0+– h6 12.Nc3 Nc3 13.Bc3 (worse 13.dc3 Qe7 14.Qd2 Be6+–) 13...b6 (13...Be6 14.Rb1 b6 15.Qa4+–) 14.Qb3 (better 14.Bc4!? Be6 15.Be6 fe6+–) 14...Be6 15.Bc4 Bc4 (15...Qd7 16.Be6 Qe6 17.Rac1 Qb3 18.ab3+–) 16.Qc4 Qd7 17.Nd4 (better 17.Rac1 Bc5 18.d4+–) 17...Nd4 (17...Ne5 18.Qd5 c6+–) 18.Qd4 f6 (18...Bh2 19.Kh2 Qd4 20.ed4 Rd8+–) 19.Qd5 (19.Qd5 Kh7 20.Qe4 f5 21.Qa8+–) 1–0. juditfan (2330) – gstevenson (2335), net–chess.com, 2014.

10.fe3 Bf5?? 11.0–0+– Be6 (11...Qe7 12.Ne5 Qe6 13.Nc6 bc6 14.Na3+–) 12.Qc2 Be7 13.Nc3 Nc3 14.Bc3 h6 (14...g6 15.Rab1 b6 16.Ba1+–) 15.Qb2 f6 16.Qb7 Bd5 17.Qa6 Rb8 18.Rab1 Bc5 (18...Rb6 19.Qa4 Qe8 20.Rb5+–) 19.Rb8 Qb8 (19...Nb8 20.Qb5 Bb6+–) 20.Bc4 Qd8 21.Qb5 Qd6 22.d4 1–0. pierred (2765) – gstevenson (2335), net–chess.com, 2014.

10.0–0 Re6

11.a3 Bc5 12.d4 Bb6 13.Bc4 Rd6 14.Nbd2 Nf4–/+.

11.a3 Bc5 12.d4 Bb6 13.Bc4 Re7 –/+.

11.a3 Be7 12.Ra2 Nf4 13.Bc4 Rg6 14.g3 Na5–+.

11.a3 Be7 12.Bb5 Nf4 13.Qa4 Ng2 14.Bc6 Rc6–+.

11.a3 Be7 12.Nc3 Nf4 13.Bc4 Rg6 14.Qb3 Rg2–+.

11.a3 Be7 12.Bc4 Rg6 13.Ne5 Ne5 14.Be5 Bf6–+.

11.a3 Bf8 12.Bc4 Rg6 13.Ne5 Ne5 –/+.

11.Bb5 a6 12.Bc6 Rc6 13.Re1 Re6 –+.

11.Bb5 Nf4 12.Qa4 Nd3 13.Bc3 Be7 –+.

11.Bb5 Rg6 12.a3 Be7 13.Bc6 Rc6 –+.

11.Bc4 Na5 12.d3 Rd6 13.Qc1 Nc4 14.dc4 Nf6–/+.

11.Bc4 Na5 12.d3 Rd6 13.Qc1 Nc6 –/+.

11.Bc4 Na5 12.Bd5 Qd5 13.Nc3 Qd3 14.Qb1 Qd8–/+.

11.Bc4 Re8 12.Re1 Be6 13.Bb5 Bg4 –/+.

11.Bc4 Rg6 12.a3 Bh3 13.Ne1 Bg2 14.Ng2 Nf4–+.

11.Bc4 Rg6 12.Re1 Nf4 13.g3 Be6 14.Be6 Ne6–+.

11.Re1 Nf4 12.Bc4 Re1 13.Qe1 Bf5 –+.

10.0–0 Re7

11.a3 A) 11...Bc5 12.Bb5 (12.d4 Bb6 13.Bb5 Qd6 14.Nbd2 Nf4–/+; 12.Re1 Nf4 13.Bf1 Bg4 14.Re7 Qe7–+) 12...Qd6 13.Qc2 Bd7 14.Nc3 Nf6–/+; B) 11...Bd6 12.Bb5 (12.Nc3 Nf4 13.Bb5 Bg4 14.Bc6 bc6–+; 12.Bc4 Nf4 13.Re1 Bg4 14.Re7 Qe7–+; 12.Re1 Bg4 13.h3 Bh5 14.Qb3 Qe8–+) 12...Bd7 13.Nc3 Nf4 14.Qc2 Ne5–+.

11.Bb5 Na5 12.Qc2 Bd6 13.Rc1 c6 –/+.

11.Bb5 Qd6 12.Qc2 (12.a3 Bc5 13.Qc2 Bd7 14.Nc3 Nf6–/+) 12...Bd7 13.a3 Ba5 14.Nc3 Rae8–/+.

11.Bb5 Bg4 12.h3 Bh5 13.Bc6 bc6 –+.

11.Nc3 Nf4 12.Bb5 Bg4 13.Bc6 bc6 14.Rb1 Bc3–+.

11.Re1 Qd6 12.Nc3 Nf4 13.Bb5 Qg6 14.g3 Bd7–+.

11.Re1 Nf4 12.Bb5 Bg4 13.Re7 Qe7 –+.

11.Re1 Nf4 12.Bb5 Bg4 13.Re7 Ne7 14.Bc4 Ned5–/+.

11.Re1 Bf5 12.Bb5 Qd6 13.Bc6 Qc6 –/+.

11.Re1 Bg4 12.a3 Nf4 13.Bf6 gf6 14.ab4 Qf8–+.

11.Re1 Bg4 12.h3 Bh5 13.a3 Bc5 14.d4 Nf4–+.

11.a3 Bc5

12.Bb5 Qd6 13.Qc2 Bd7 –/+.

10.0–0 Re8

11.a3 Bc5 12.Bb5 Bg4 13.Qb3 Rb8 –/+.

11.a3 Bc5 12.Bb5 Bg4 13.h3 Bh5 14.Bc6 bc6–+.

11.a3 Be7 12.Bb5 Bg4 13.Nc3 Qd6 14.Nd5 Qd5–/+.

11.Bb5 Qd6 12.a3 (12.Nd4 Nde7 13.Qh5 Bd7 14.Nc6 Nc6–+) 12...Bc5 13.d4 Bb6 14.Ne5 Bd7–/+.

11.Bb5 Bd7 12.Qb3 a6 13.Qd5 ab5 –/+.

11.Bb5 Re6 12.Qb3 (12.a3 Be7 13.Re1 Rg6 14.Ne5 Ne5–/+; 12.Re1 Nce7 13.Re6 Be6 14.Nd4 Qd6–/+; 12.Qc2 Be7 13.Nc3 Nf4 14.Bc6 Rc6–/+) 12...Na5 13.Qc2 Bd6 14.Bd3 Rh6–/+.

11.Nc3 Nc3 12.Bc3 Bc3 13.dc3 Qf6 –/+.

11.Nc3 Nf4 12.Bb5 Qd6 13.Qc2 a6 –+.

11.Nc3 Bg4 12.a3 Nc3 13.dc3 Qd1 –+.

11.Bc4 Be6 12.Re1–+.

11.Bc4 Nce7 12.Bc3 (12.Qb3 c6 13.Nc3 Bc3 14.dc3 b5 15.Bd5 Qd5–/+) 12...Nc3 (12...a5!?–+) 13.Nc3–/+ Bc3 14.dc3 Qd1 15.Rad1 Bg4 16.Be2? (16.Ng5 Bh5 17.g4 Bg6=+ (worse 17...Bg4 18.Bf7 Kf8 19.Rd4+–)) 16...Bf3 (better 16...Nd5! 17.Rd5 Re2–/+) 17.Bf3=+ c6 18.Rd7 Rab8 19.Rb1 b5 (better 19...Nc8!?–/+) 20.Ra7+= Kf8 21.Rd1 Red8 22.Rdd7 Rd7 23.Rd7 Rc8 24.Kf1 Ke8 25.Ra7 g6 26.Bg4 f5 27.Be2 Kd8 28.c4 bc4 29.Bc4 Rc7 30.Ra8 Rc8 31.Rc8 Kc8 32.f4 Kc7 33.Ke2 Kd6 34.Kd3 Kc5 35.a3 h6 36.g3 Nc8 37.Bf7 g5 38.fg5 hg5 39.h4 gh4 (39...Nd6 40.Bg6 Kd5 41.h5+–) 40.gh4+– Nd6? (better 40...Kd6!?+–) 41.Be6+– Kb5?? (41...f4 42.h5 Ne8 43.h6+–) 42.h5 Ne8 (42...Ne4 43.h6 Ng5 44.Bf5 c5+–) 43.Bf5 Nf6 (43...Nd6 44.Bg6 Nc8 45.h6+–) 44.h6 Ka4 (44...c5+–) 45.Kc4 Ka3 46.Kc5 1–0. gerotnik (2320) – gstevenson (2335), net–chess.com, 2014.

11.d4 Bg4 12.Nbd2?? (better 12.a3 Ba5 13.Bc4–+) 12...Bc3 13.Bb5 (13.Qc1 Bb2 (13...Re2?! 14.Bc3 Qf6 15.h3–+) 14.Qb2 Re2 15.Qb7 Nd4 16.Nd4 Rd2–+) 13...Bb2 14.Bc6 bc6 0–1. Martinez Saenz – Fontana Sotomayour (2295), Zaragoza Delicias op 6th, 2005.

11.Re1 Qd6 12.a3 Bc5 13.d4 Bb6 –/+.

11.Re1 Bf5 12.Bb5 Qd6 13.Re8 Re8 –+.

11.Re1 Bg4 12.a3 Nf4 13.Bc4 Bd6 –+.

11.a3 Bd6

12.Qb3?? Re2 13.Nc3 (13.Bg7 Bh2 14.Nh2 Kg7–+) 13...Nc3 14.Bc3 (14.Bc3 Bg4 15.Qb7 Bf3 16.gf3–+). Zimmer,Georg – Drefke, corr SOK–89–39, 1989.

12.Nc3 Nf4 13.Bb5 Bd7 –+.

12.Nc3 Nf4 13.d4 Ne2 14.Ne2 Bg4 15.Ng3 Bg3 16.fg3 Qd5 17.Rc1 Rad8 18.Rc5 Qc5 19.dc5 Rd1 20.Rd1 Re2 21.Bd4 f6 22.Rd3 Bf3 (22...Bf5 23.Rc3–+) 23.gf3–/+ Nd4 (23...Kf7 24.h3–/+) 24.Rd4 Kf7 25.Rb4 (25.Rd7 Re7 26.Rd8 c6–/+) 25...b6 26.cb6 (26.Rd4 f5–/+) 26...ab6–+ 27.Rb3 Re6 (27...Ke6 28.Rc3 Kd7 29.Rd3 Kc8 30.Rb3–+) 28.h4 c5 29.h5 Ke7 30.Kf2 Kd7 31.Re3? (better 31.a4–+) 31...Re3 32.Ke3 Kc6 (32...Kc6 33.a4 Kd5–+) 0–1. Bender,Herbert – Kabisch,Guenter, corr DDR–ch M627, 1979.

12.Re1–+.

10.fe3 Ne3

11.Qb3 Be6 12.Qe3 1–0. rvac066 – empirykwj2000, internet, 2014.

11.Qb3 Bf5?? 12.Kf2 (better 12.Qe3 Qe7 13.Qe7 Be7 14.Kd1+–) 12...Ng4? (better 12...Nc2+=) 13.Kf1+– Qe7 14.h3 (14.a3 Re8 15.Ng1 Bd6+–) 14...Re8 15.Bc4?? (15.Bd3 Na5 16.Qc2 Qc5 17.hg4 Qc2 18.Bc2 Bc2+–) 15...Nh6?? (better 15...Na5!? 16.Bf7 Kh8 17.hg4 Nb3 18.gf5 Qf7 19.Rh7 Kh7 20.Ng5 Kg8 21.Nf7 Na1–+) 16.Nc3 (16.a3 Bc5 17.Qc3 Nd4+–) 16...Na5 17.Bf7?? (better 17.Nd5 Qe4 18.Qb4 Qc4 19.Qc4 Nc4 20.Bd4+– (20.Nc7?! Re7+–)) 17...Nf7–/+ 18.Nd5?? (better 18.Qd5 Be6 19.Qh5–/+) 18...Qe2–+ (18...Nb3?! 19.Ne7 Re7 20.ab3 Bd3 21.Kg1=) 19.Kg1 Nb3 20.ab3 Bc5 21.d4 (21.Kh2 Qd3 22.Rhe1 Re1 23.Re1 Qd5 24.Re8 Bf8–+) 21...Be4 (21...Qb2!? 22.dc5 Qa1 23.Kh2–+) 22.dc5 (22.Re1 Qb2 23.dc5 Ne5 24.Re4 Qb1 25.Kf2 Qe4 26.Nc7 Qc2 27.Kg3 Qg6 28.Kf2 Nd3 29.Kg1 Re2 30.Rh2 Qg3 31.Nd2 Rd2 32.c6 Qe1) 22...Bd5 (22...Bf3 23.Rh2 Qb2 24.Rf1 Qd4 25.Kh1 Qf2 26.Rg1 Re1 27.Ne7 Kf8 28.Ng6 hg6 29.Re1 Qe1) 23.Kh2 (23.Re1 Qe1 24.Ne1 Re1 25.Kh2–+) 23...Bf3 24.Rhe1 Qg2 0–1. marvis (1650) – nikus1997b, kurnik, 2012.

11.Qc1 Qe7 12.Kf2 Ng4 13.Kf1 Bf5 14.Nc3 (14.h3!? Nge5 15.Be5 Ne5 16.Nc3 Nf3 17.Bf3 (worse 17.gf3 Re8 18.Qe1 Qe6=) 17...Bd3 18.Kg1=+) 14...Re8+= 15.Qe1 Bc5 16.Qh4 (16.Rc1 Qd8=) 16...Qd7 17.h3 Nf2? (better 17...Nge5!? 18.Ne5 Re5+=) 18.d4+– Nd4?? (better 18...Bd4 19.Nd4 Nh1+–) 19.Qf2 Nb3 (19...Ne2 20.Qc5 b6 21.Qb5 Ng3 22.Kg1 Nh1 23.Kh1 Qb5 24.Nb5+–) 20.Rd1 (20.Rd1 Qd1 21.Bd1 Bf2 22.Kf2+– (worse 22.Bb3 Bg3+–; worse 22.ab3 Bg3+–); 20.ab3?! Bf2 21.Kf2 Qe6+–) 1–0. Cueto,Jonny (2280) – Stachanczyk,Jacek (2295), Tromso NOR, 2014.

11.Qa4 Qe7

12.a3 Ng2 13.Kd1+– Nf4 14.Qb5 Bc5 15.Re1 Bf2 16.Rf1 a6 17.Qc4–+.

12.a3 Ng2 13.Kd1+– Nf4 14.Bc4 Bg4 15.Rf1 Qe4 16.Qb3 A) 16...Rd8 17.Kc1+– (17.ab4+–); B) 16...Bd6 17.h3+=.

12.Nc3 Ng2+– 13.Kd1 Bd7 14.a3 Bc3 15.dc3 Rd8 16.Nd2 Bf5–+.

12.Nc3 Ng2+– 13.Kd1 Bd7 14.a3 Bc3 15.dc3 Re8 16.Bb5 Bg4–/+.

12.Nc3 Ng2 13.Kd1 Bd7 14.a3 Bc3 15.Bc3 Re8 16.Bd3 Qd6 17.Qb5+– (17.Nd4+=).

12.Nc3 Ng2+– 13.Kd1 Bd7 14.a3 Bc3 15.Bc3+– Re8 16.Bd3 Qd6+–.

12.Nc3 Ng2 13.Kd1 Qd8 14.Ne5 Ne5 15.Qb4 Bg4 16.Qb3 Nc4 17.Nb1=+.

12.Nc3 Ng2 13.Kd1 Nf4 14.Bb5 Bg4 15.Bc6 Nd3 16.Kc2 bc6 17.Qc6+–.

12.Nc3 Ng2+– 13.Kd1 Bf5 14.Rg1+– Ne3 (14...Bh3 15.Nd5 Qe4 16.Nb4 Nb4+–) 15.Kc1 a6 (15...g6 16.Ba6 Bd7 17.Bb7 Na5 18.Qb4 Qb4 19.Ba8 Nac4=) 16.Bd1?? (better 16.Rg7! Kf8 17.Ng5+– (17.de3? Qe3 18.Nd2 Rd8–+)) 16...Qc5 17.Rg5 (better 17.a3 b5 18.Qb3+–) 17...b5–/+ 18.Rf5 Qf5 (18...ba4? 19.Rc5 Bc5 20.Ba4+– (20.de3?! a3+–); 18...Nf5?! 19.Qc2=+) 19.Qb3 Bc5 (better 19...Nd1 20.Nd1 Re8–/+) 20.Ne4?? (20.de3 Be3 21.Nd2 Bd2 22.Kd2 Qg5 23.Ke1–/+) 20...Qe4–+ (20...Nd1?! 21.Ng3 Qg4 22.Kd1=+) 21.Qf7 Kf7 22.Ng5 Kf8 23.Ne4 Nd1 24.Kd1 (24.Nc5 Nb2 25.Kb2 Ke7–+) 24...Bd4 25.Ba3 (25.Rc1 Bb2 26.Rc6 Be5–+) 25...Ke8 26.Rc1 Kd7 27.Bc5 Be5 28.Ng5 (28.h3 Re8–+) 28...Bh2 29.Nh7 Rh8 (29...Bd6 30.Bd6 cd6 31.Kc2–+) 30.Nf8 Ke8 31.Ne6 Be5 32.Bg1 Rh6 (32...Nb4!? 33.a3 Ke7 34.Nf4 Bf4 35.ab4–+) 33.Rc6 Kd7 34.Ra6 Re6 35.Ra5 c6 (35...b4 36.Bc5 Bd6 37.Bd6 Kd6 38.a3 ba3 39.Ra3–/+) 36.Bc5 g5 37.a4 ba4 38.Ra7 Ke8 39.Ra4 Kf7 40.Be3 Bf6 41.Ke2 Kg6 42.Kf3 Kh5 43.Ra5 Re5 (better 43...Bd8!? 44.Ra7 Be7–/+) ½–½. Pommerel,Wim H – Huisjes,Johan, CiF, 1985.

12.Kf2 Ng2 A) 13.Nc3 Nh4 (13...Nf4) 14.Rag1 Bc5 15.d4 Nf3 16.dc5 Ng1 17.Rg1=+; B) 13.Bb5 Nf4 14.Re1 Be6 15.Re3 Qc5 16.d4 Nh3 17.Kg2+–.

12.Rg1 Bd7 (12...Bf5 13.Kf2 Nc2 14.Rd1 Na1 15.Ba1 Re8 16.Bb5 Be4 17.Nc3+=) 13.Qb3 Re8 14.Ne5 Nf5 15.Qf7 Qf7 16.Nf7 Ncd4 (16...Kf7?! 17.Kd1=) 17.Kf1 (17.Bd4–/+) 17...Ne2 (worse 17...Re2 18.a4 Kf7 19.g4–+; 17...Kf7?! 18.Bd3 Bc5 19.Nc3=) 18.Ne5 Bb5 19.a4 Ba6 (19...Ng1 20.ab5 Bd6 21.d4 Nd4 22.Bd4 Be5 23.Be5 Re5 24.Nc3+= (worse 24.Kg1 Rb5 25.Nc3 Rc5=+)) 20.g4 (20.Na3 Nc3 21.Kf2 Na4–+ (21...Re5?! 22.Bc3 Bc5 23.Kf3 Nd4 24.Kf4–+)) 20...Nh4 (better 20...Nfd4!? 21.Kg2 Re5 22.Bd4 Nd4 23.Nc3–+) 21.Rh1 Ng3 22.Kg1 Bc5 (22...Nh1 23.Kh1 b6 24.a5–+) 23.d4 Ne2 24.Kf2 Nd4 25.Kg3 Re5 26.Kh4 (26.Bd4 Bd4 27.Ra3–+) 26...Be7 27.Kg3 Re3 28.Kg2 Re2 29.Kh3 Rb2 30.Nc3 Rb3 31.Rac1 (31.Rhc1 Ne2 32.Rc2 Nc3–+) 31...Bb4 (31...Ne2!? 32.Rc2 Nc3 33.Re1 Nd5 34.Kg2–+) 32.Rhe1 Rc3 33.Rc3 Bc3 (33...Bc3 34.Re7 Bf1 35.Kg3 Nc6–+) 0–1. Machete99 (2190) – VIGOmachaca (2120), ICC, 2002.

11.Qa4 Bf5

12.Kf2 Nc2

13.Qb5 Bd7

14.Qb7? Rb8 15.Qa6 Bc5 16.d4 Rb2?! 17.dc5 Qe7 18.Qd3 Na1 19.Qe3 –+.

14.Qb7? Rb8 15.Qa6 Bc5 16.d4 N6d4 17.Bd4 Bd4 18.Kf1 Ba1 –+.

14.Qb7? Rb8 15.Qa6 Bc5 16.d4 N6d4 17.Bd4 Bd4 18.Kf1 Rb6 –+.

14.Rc1 Na1

15.Ba1 a6

16.Qb7?! Ra7 17.Qc6 Bc6 18.Rc6 Qd5 =.

11.Qa4 Ng2

12.Kd1 a6 13.Rg1 (13.Ne5) 13...Ne3 (13...Bh3 14.Qb3 Bc5 15.Qc3 Qf8 16.Ba3 Ba3 17.Na3+–) 14.Kc1+– Nf5 15.Bc4 Qf8 16.Bd3 Qc5 17.Qc2+–.

12.Kd1 Ne3 13.Kc1 Nd5 A) 14.Bb5 Nf4 (14...Bg4 15.Bc6 Bf3 16.Rf1 Qh4 17.Rf3 bc6 18.Nc3+–; 14...Nce7 15.Rg1 Nf5 16.Qc2 Be7 17.Nc3 Be6 18.Nd5+–; 14...Nb6 15.Qc2 Qd5 16.Bc6 bc6 17.Qb3 Bc5 18.Re1+–; 14...Bd7 15.Qb3 Be6 16.Bc6 Nf4 17.Qe3 Nd3 18.Kc2+–) 15.Bc6 Nd3 16.Kc2 bc6 17.Nd4 c5 18.Kd3+–; B) 14.Qc2 Bf8 (14...Nf4 15.Bc4 Be6 16.Rg1 g6 17.Ng5 Bd5 18.a3+–; 14...Bg4 15.Rg1 Nf6 16.Qc4 Be6 17.Qf4 Be7 18.Ng5+–; 14...Be7; 14...Bd6; 14...Be6; 14...Qd6; 14...a6; 14...Nce7) 15.Rg1 Nf4 16.Ng5 Ne2 17.Kd1 g6 18.Qc4+–; C) 14.Re1 Bf5 (14...a6 15.a3 Bd6 16.Rg1 g6 17.Qb3 Bc5 18.Rg5+–; 14...Nf4 15.Bb5 Bd7 16.Re4 a6 17.Bc4 Bd6 18.Bf7+–; 14...Rb8 15.Bb5 a6 16.Bc6 bc6 17.Qc6 Be7 18.a3+–; 14...Qd6 15.Qc2 Bd7 16.Nc3 Re8 17.Nd5 Qd5 18.Qb3+–; 14...Bd6 15.Rg1 Bf8 16.Nc3 Ndb4 17.Qb5 a6 18.Qh5+–; 14...Bg4 15.Rg1 Nf6 16.a3 Qe7 17.Qb5 Qc5 18.Qc5+–; 14...Be6; 14...Be7) 15.a3 Bc5 16.Ba6 ba6 17.Qc6 Nf4 18.Ne5=; D) 14.Rg1 D1) 14...f6 15.Bb5 Qd6 16.Bc6 bc6 17.a3 Bc5 18.Bd4+–; D2) 14...Bf8 15.Qe4 f5 16.Qc4 Qd6 17.Ba3 Qd7 18.Bf8+–; D3) 14...Nf6 15.Bb5 Bc5 (15...Bd7 16.Bc6 Bc6 17.Qb4 Bf3 18.Qf4+–) 16.Rg5 D31) 16...Bd6 17.Bc6 bc6 18.Qh4+– (18.Nc3+–); D32) 16...Be7 17.Bc6 bc6 18.Ne5+–; D4) 14...g6 15.Bb5 Nce7 16.Nc3 c6 17.Be2 b5 18.Qc2+–; E) 14.a3 Be7 (14...Bc5 15.Nc3 Be6 16.Ne4 Nb6 17.Qd1 Be7 18.Rg1+–; 14...Nf4 15.Bc4 Nd3 16.Bd3 Qd3 17.ab4 Qf3 18.Rg1+–; 14...Bd6 15.Rg1 g6 16.Qb3 Qe8 17.Qd5 Qe2 18.Nc3+–) 15.Nc3 Be6 16.Re1 Qd6 17.Bb5 Nb6 18.Qc2+–.

12.Kd1 Ne3 13.Kc1 Qe7 A) 14.a3 A1) 14...Ng2 15.Bb5 Bc5 (15...Qc5 16.Nc3 Bc3 17.Bc3 Bd7 18.Rg1+–) 16.Bc6 bc6 17.Ne5 (17.Qc6) 17...Rb8 18.Nc6+– (18.d4+=); A2) 14...Qc5 15.Nc3 Bc3 16.Bc3 Nd5 17.Qc4 Qd6 18.Rg1+–; A3) 14...Bd7 15.Qb3 Ng4 16.Re1 Be6 17.Bc4 Na5 18.Qb4+–; A4) 14...Nf5 15.Re1 Bd6 16.Bb5 Be6 17.Bc6 bc6 18.Nc3+–; A5) 14...Ng4 15.Re1 Bd6 16.Bb5 Qd7 17.Bc6 bc6 18.Ng5+–; A6) 14...Nd5 15.Re1 Bg4 A61) 16.Kd1 Re8 17.Ne5 (17.Qb3 Nf4 18.h3=) 17...Bd2 18.Nd2+=; A62) 16.Qb3 Qc5 17.Kd1 Rd8 18.d4+–; B) 14.Nc3 a6 (14...Bf5 15.Rg1 g6 16.Ba6 Bd7 17.Bb5 Re8 18.a3+–; 14...Ng2 15.Bb5 Bd7 16.Rg1 Qf6 17.Qd1 Bg4 18.Rg2+–; 14...Bg4 15.Rg1 Rd8 16.a3 Bc3 17.Bc3 h5 18.Bb5+–; 14...Bd7 15.a3 Bc3 16.Bc3 Nc2 17.Kc2 Qe2 18.Qf4+–) 15.a3 Bc3 16.Bc3 Nd5 17.Qb3 Nc3 18.Qc3+–; C) 14.Qb5 Nf5 (14...a6) 15.Re1 a6 16.Qa4 Be6 17.Bd3 Nh4 18.Be4+–; D) 14.Rg1 Nf5 (14...Ng4 15.Nc3 Nf6 16.Re1 Bd7 17.a3 Bd6 18.Bc4+–; 14...Qc5 15.Nc3 Nd5 16.Qc2 Nc3 17.Bc3 Bc3 18.Qc3+–) 15.Bd3 Qc5 16.Qc2 g6 17.Re1 Bd7 18.Qc5+–.

12.Kd1 Ne3 13.Kc1 Nf5 14.Bb5 Bd7 15.Qc2 Nce7 (15...Nh4 16.Rg1 Ng6 17.Bc4 Qe8 18.h4+–) 16.Bc4 A) 16...Nc6 17.Rg1 (17.Rf1 Qe7 18.a3+–) 17...Be7 (17...g6 18.Ng5+– 2.72/7) 18.Qc3+–; B) 16...Bc6 17.Qb3 Bd5 18.Qb4+–.

12.Kd1 Ne3 13.Kc1 Nf5 14.Bc3 Bc5 (14...Bd6; 14...a5; 14...Ncd4; 14...Nfd4; 14...Be7; 14...Bf8) 15.Rf1 Nfd4 16.Bc4 Be6 17.Nd4 Nd4 18.Be6+–.

12.Kd1 Ne3 13.Kc1 Nf5 14.Nc3 a6 (14...Be6; 14...Bd7; 14...a5; 14...Bc5; 14...Bd6; 14...Be7; 14...Rb8; 14...Nfd4) 15.Re1 Be6 (15...Nh4) 16.Qc2 Nfd4 17.Nd4 Nd4 18.Qe4+–.

12.Kd1 Ne3 13.Kc1 Nf5 14.Re1 A) 14...a6 15.Bb5 Bd7 16.Bc6 Bc6 17.Qb4 Bf3 18.Qf4+–; B) 14...Bc5 15.Bb5 Bd7 16.Ne5 Ne5 17.Re5 c6 18.Bc6+– (18.Bd3+–); C) 14...Rb8 15.Bb5 Bd7 16.Bc6 Bc6 17.Qb4 Bf3 18.Qf4+–; D) 14...Kh8 15.Bb5 Bd7 16.Bc6 Bc6 17.Qb4 Bf3 18.Qf4+–; E) 14...a5 15.a3 Bc5 16.Bb5 Nce7 17.Ng5 c6 18.Qc4+–; F) 14...Be6 15.Bb5 Nfe7 16.a3 Bd6 17.Rg1 Ng6 18.Bc6+–; G) 14...Be7 15.Bc4 Bd7 16.Qb3 Nd6 17.Bd5 Bf6 18.Nc3+–; H) 14...Bd6 15.Bc4 a6 16.Bd5 Nfe7 17.Be4 Bf5 18.Rg1+–; I) 14...Bd7 I1) 15.Qc2 I11) 15...Bf8 16.Bc4 (16.a3 Be6 17.Qc3 Be7 18.Rg1+–) 16...Nd6 17.Bd3 h6 18.Qc3+–; I12) 15...Be7 16.Bc3 Be6 17.Bd3 Qd7 18.Ne5+–; I2) 15.Bb5 Be7 16.Nc3 a6 17.Bc6 Bc6 18.Qf4+–.

12.Kd1 Ne3 13.Kc1 Nf5 14.Rf1 A) 14...Qd6 15.a3 Bc5 16.Bc4 Be6 17.Nc3 Bc4 18.Qc4+–; B) 14...Bd6 15.Bc4 a6 16.h4 Qe7 17.Re1 Be6 18.Ng5+–; C) 14...Qe7 15.Bd3 Qc5 16.Nc3 Bd7 17.Qc2 Ba3 18.Ba3+–; D) 14...Bc5 15.Nc3 (15.Bc4 Nd6 16.d4 Bb6 17.Bd5 Ne7 18.Bb3+–) 15...Be6 16.Ne4 Bd4 17.Bc3 Qd5 18.Bb5+–; E) 14...a5; F) 14...a6; G) 14...Bd7; H) 14...Nd6; I) 14...Be7 15.Nc3 Be6 16.Ba6 Nb4 17.Bb5 a6 18.Be2+–.

12.Kd1 Ne3 13.Kc1 Nf5 14.Rg1 Bc5 (14...Bd7; 14...Qd6; 14...a6; 14...Be6; 14...Rb8; 14...Be7) 15.Rg4 Be6 16.Bb5 Bd5 17.Qf4 Bf3 18.Qf3+–.

12.Kd1 Ne3 13.Kc1 Ng4 A) 14.Bb5 Nf2 (14...Qd6 15.Bc6 Nf2 16.Ne5 bc6 17.Rf1 Bf5 18.Qb3+–; 14...Bd7 15.Rg1 Qe7 16.a3 Qc5 17.Nc3 Bc3 18.Bc3+–; 14...a5 15.a3 Nf2 16.Rg1 Bf8 17.Qb3 Bf5 18.Qc3+–) 15.Rg1 Bf8 16.Qb3 Bf5 17.Qc3 Bg6 18.Bc6+–; B) 14.Rf1 Be6 (14...Qd6 15.a3 Bc5 16.Ng5 Nge5 17.Qe4 Qg6 18.Be5+–; 14...Qe7 15.Bc4 Be6 16.Be6 Qe6 17.Qb3 Qb3 18.ab3+–; 14...Bd6 15.Bc4 Qe7 16.Re1 Qd7 17.Qc2 Nb4 18.Qc3+–; 14...a6 15.Bc4 Qe7 16.Re1 Be6 17.Qc2 Nd8 18.Nc3+–; 14...Rb8 15.Bc4 Be6 16.Be6 fe6 17.Qb5 Qe7 18.h3+–; 14...Be7 15.Qb3 Bf6 16.Nc3 Nh6 17.Ne4 Bb2 18.Qb2+–; 14...Bc5 15.Qc2 Qe7 16.Bc4 Be6 17.Be6 fe6 18.Qc4+–; 14...Bf5 15.Qb5 Qd7 16.Qb7 Rb8 17.Qa6 Rb6 18.Qc4+–) 15.Bb5 Qd5 16.Nc3 Bc3 17.Bc3 Nce5 18.Be2+–; C) 14.Bc3 a5 (14...Bc5 15.Rf1 Bd6 16.Bc4 Nh6 17.Rg1 g6 18.Qb5+–; 14...Bf8 15.Re1 Nf2 16.Ne5 Ne5 17.Be5 Bf5 18.Qd4+–; 14...Nf2 15.Rg1 Bf8 16.Qb3 Ne4 17.Ne5 Be6 18.Nc6+–; 14...Bd6 15.Bb5 Nge5 16.Ne5 Ne5 17.Re1 Nd7 18.Qe4+–; 14...Bc3 15.dc3 Qf6 16.Re1 Bf5 17.Qf4 Re8 18.Kb2+–; 14...Qd6 15.Bb4 Qb4 16.Qb4 Nb4 17.d4 Be6 18.Nc3+–; 14...Qe7 15.Re1 Bc3 16.Nc3 Qc5 17.Rb1 Nf6 18.Kd1+–; 14...Be7 15.Bb5 Qd5 16.Bc6 bc6 17.Re1 Be6 18.Ne5+–) 15.Bb5 Nf2 16.Rg1 Bc3 17.dc3 Nd3 18.Bd3+–; D) 14.Bc4 Bd6 (14...a6 15.Re1 Be7 16.Nc3 Nh6 17.Nd5 Bd6 18.Qb3+–; 14...Bf5 15.Rf1 Nh6 16.Bb5 Qd6 17.Bc6 bc6 18.Rg1+–; 14...Be6 15.Be6 fe6 16.Rg1 Nf6 17.Qb3 Qe7 18.a3+–; 14...Qd6 15.Qc2 h6 16.Re1 Bd7 17.h3 Nf2 18.a3+–; 14...Be7 15.Qb3 Nh6 16.Rf1 Bf6 17.Bf6 Qf6 18.Qc3+–; 14...Rb8 15.Qb3 Qf8 16.Rf1 b5 17.Bf7 Kh8 18.Qd5+–; 14...Bd7 15.h3 Nh6 16.Rg1 Bf8 17.Qb3 Bf5 18.Qb7+–; 14...Nh6 15.Bb5 Bd6 16.Bc6 bc6 17.Rg1 Nf5 18.Nd4+–) 15.Rf1 Qe7 16.h4 Be6 17.Re1 Nf2 18.Qc2+–.

12.Kd1 Bf5 13.Rg1+– Bh3 (13...Bb1 14.Rb1 (14.Rg2 Bg6 15.Bb5 Qd5 16.Bc6 bc6 17.Qb3 Rd8 18.Rg4+– 1.75/8) 14...Ne3 15.Ke1 Nf5 16.Qb5 Bd2 17.Nd2 Qh4 18.Kd1+–; 13...Ne3 14.Kc1 Ng4 15.Qb5 (15.a3+– Qe7 16.Rg2 Qc5 17.Nc3 Bc3 18.Bc3+–) 15...Bd7 16.Bc4 Qe7 17.Qh5 g6 18.Rg4+–) 14.Qb5 (better 14.Bf1!? A) 14...Bc5 15.Bg2 (15.Rg2 Bg2 16.Bg2 Nb4+– 17.d4 Bd6 18.Qb3+–) 15...Bg1 16.Bh3 Bb6 (16...Bc5 17.Qg4 Bf8 18.Ng5+–) 17.Qg4 Qf8 18.Bg2+–; B) 14...Ne3 15.Kc1 Nf1 16.Rg7 Kf8 17.Rh7 Ke7 18.Rh3+–; C) 14...Qd5 15.Qb3 Qb3 16.ab3 Bc5 17.Bg2 Bg1 18.Bh3+–) 14...Be7 (14...Bf8) 15.Qb7 (15.Bg7 Kg7 16.Bf1 Nd4 17.Qb7 Rb8+– 18.Qe4+–) 15...Rb8 16.Qc6 Rb2 17.Nc3?? (better 17.Qc3!? Rb6 18.Ne5+–) 17...Rb6 (better 17...Ne3! 18.Ke1 Nc2 19.Kf2 Na1 20.Ra1 Bg4+=) 18.Qe4 Bc5 19.d4 (19.Qd5 Ne3 20.de3 Rd6+=) 19...Re6 (better 19...Bf5! 20.Qe5 Bd6=) 20.Qd3+– Bf5 21.Qd2 (21.Qf5 Ne3) 21...Ne3 22.Ke1 Nc2 23.Kf2 (23.Kd1 Rd6 24.Nb5 Na1 25.Nd6 Bd6 26.Bd3 Bd3 27.Qd3+–) 23...Nd4–+ 24.Kg2 Qd6 25.Rgd1 (25.Rad1 Nf3 (worse 25...Ne2 26.Ne2 Bg1 27.Qb2=) 26.Qd6 Nh4 (26...Rd6?! 27.Bf3 Rg6 28.Kh1 Rg1 29.Rg1 Bg1 30.Kg1=) 27.Kg3 cd6 28.Kh4 Bg1 29.Rg1 Rh6 30.Kg3 Rh3 31.Kf4 Be6–/+) 25...Nf3 (25...Qc6 26.Rf1 Rg6 27.Kh1 Bh3=) 26.Kf3? (26.Qd6 Nh4 27.Kg3 Bd6 28.Kh4–/+) 26...Qh2 27.Qd8 Bf8 (27...Bf8 28.Rg1 Qe5–+). Psion, 4', 1989.

12.Kd1 Bc5

13.a3 Bf5 (13...Be6; 13...Ne3; 13...a6; 13...Rb8; 13...Qd6) A) 14.Qb5 Qd6 15.Kc1 Nf4 16.Bc4 Be4 17.Qb3 Bd4 18.Bd4=; B) 14.Kc1 Qd6 (14...Qe7; 14...a6; 14...Qd5; 14...Qd7) 15.Bc4 Nf4 16.Qb3 Nd3 17.Bd3 Bd3 18.Ne1+=; C) 14.Qb3 Qd6 (14...Ne3 15.Kc1 Nc2 16.Ra2 N6d4 17.Bd4 Nd4 18.Nd4+–; 14...Qd7) 15.Kc1 Nf4 16.Bc4 Nd3 17.Bd3 Bd3 18.Ne1+=.

13.Na3 A) 13...a6 A1) 14.Rc1 Ba7 (14...Bf2 15.Nc2 Be6 16.Rf1 Bb6 17.Qe4 Qd5 18.Qd5+–; 14...Bb6; 14...Be7; 14...Bd6; 14...Qe7; 14...Qd5; 14...Ne3; 14...Bb4) 15.Nc2 Be6 16.Rf1 Qd5 17.a3 b5 18.Qa6=; A2) 14.Nc2 Qd5 (14...Bf5 15.Qc4 Qd6 16.Qc3 f6 17.Ncd4 Be4 18.Rf1+–; 14...Be6 15.Bf1 Ne3 16.Ne3 Be3 17.Qe4 Ba7 18.Bc4+–; 14...Bb6) 15.Rf1 Be6 16.Bc3 Rb8 17.Nfe1 b5 18.Qb3+–; A3) 14.Qb3 Ne3 (14...b6 15.Nc2 Nf4 16.Bc4 Be6 17.Qc3 Qf8 18.Ng5+–; 14...Bf5 15.Rc1 b6 16.Rc5 bc5 17.Rg1 Be6 18.Qc3+–) 15.Kc1 Nd5 16.Re1 Be6 17.Qc2 Qe7 18.Nc4+–; B) 13...Ne3 14.Kc1 Ng4 (14...Nf5 15.Nc2 Be6 16.Ba6 Qb8 17.Bc4 Bc4 18.Qc4+–; 14...Nd5 15.Qc4 Bb6 16.Qe4 f5 17.Qa4 Be6 18.Re1+–) 15.Nc2 Be6 16.Re1 Qd5 17.h3 Nf2 18.Qh4+–; C) 13...Rb8 C1) 14.Nc2 Qd5 (14...Be6 15.Rf1 a6 16.Qe4 Qd5 17.Qd5 Bd5 18.Ne5+–; 14...Bd7 15.Qc4 Bf8 16.Rg1 Bh3 17.Bf1 Nb4 18.Bg2+–; 14...Bf5 15.Qc4 Qd6 16.Qc3 f6 17.Ncd4 Nd4 18.Nd4+–; 14...Bh3; 14...Bb6; 14...a5; 14...Ra8; 14...Qd7) 15.Rf1 Be6 16.Bb5 a6 17.Be2 b5 18.Qb3=; C2) 14.Qb3; C3) 14.Qb5; C4) 14.Rc1 Bf2 (14...Bb6 15.Nc4 Be6 16.Nb6 ab6 17.Qa3 Nf4 18.Rg1+–; 14...Ne3 15.Ke1 Bb4 16.Rg1 Nf5 17.Nb5 a5 18.a3+–; 14...Bb4 15.Nc2 Bc5 16.Ncd4 Nd4 17.Rc5 Ne2 18.Ke2+–; 14...Be7 15.Nc2 Bc5 16.Ncd4 Nd4 17.Bd4 Bd7 18.Qc4+–; 14...Qe7 15.Nb5 Bf5 16.Qc4 Bb6 17.Bf1 Bh3 18.Bg7+–; 14...Bf8 15.Nb5 a6 16.Nbd4 Nb4 17.Qb3 c5 18.a3+–) 15.Nc2 Be6 16.Rf1 Bb6 17.Bb5 Ne7 18.Qe4+–; D) 13...Qd5 D1) 14.Nc2 a6 (14...Be6 15.Rf1 Rd8 16.Bc3 Bb6 17.Bb5 a6 18.Bc6+–; 14...Bf5 15.Qb3 Qb3 16.ab3 Nf4 17.Bb5 Nd3 18.Bd3+–; 14...Rb8; 14...Bd7; 14...Bh3; 14...Qd6; 14...Kh8; 14...h6) 15.Rf1 Be6 16.Bc3 Rb8 17.Nfe1 b5 18.Qb3+–; D2) 14.Qb3 Qb3 (14...Ne3 15.Kc1 Qb3 16.ab3 Nd5 17.Bc4 Ncb4 18.Nb5+–) 15.ab3 Be6 16.Bc4 Bg4 17.Rf1 Nd4 18.Bd4+–; D3) 14.Nb5 Bb6 (14...Qd8 15.Nfd4 Nd4 16.Bd4 Bd4 17.Qd4 Qd4 18.Nd4+–; 14...Qd7 15.Rc1 Bf2 16.Bd4 Bd4 17.Nfd4 Nd4 18.Qd4+–) 15.Qb3 Qd8 16.Bd3 a6 17.Qc3 Qf8 18.Na3+–; E) 13...Bg4 E1) 14.Qb3 Nf4 15.h3 Be6 16.Qc3 Qf8 17.Ng5 Re8 18.Bf3+–; E2) 14.h3 Be6 (14...Bf5; 14...Bc8; 14...Bh5; 14...Bd7) 15.Nc2 Qd6 16.Bb5 Qd5 17.Rf1 Bh3 18.Bc4+–; E3) 14.Rc1 Ne3 15.Ke1 Ng2 16.Kd1 Ne3 17.Ke1 Ng2 18.Kd1=; E4) 14.Nc2 Qd7 (14...Bf5 15.Qc4 Qd6 16.Qc3 f6 17.Ncd4 Nd4 18.Nd4+–; 14...Be6 15.Bb5 Ne7 16.Bf1 Ne3 17.Ne3 Be3 18.Qe4+–) 15.Qc4 Rd8 16.Qc3 Bf8 17.Rg1 Nf4 18.Ne3+–; F) 13...Be6 F1) 14.Rc1 Qd5 (14...Bb6; 14...Be3) 15.Nb5 Ne3 16.Ke1 Ng2 17.Kf1 Bh3 18.d4+=; F2) 14.Qb5 Qd5 (14...Qd6) 15.Nb1 Rd8 16.Nc3 Qf5 17.Qa4 Nb4 18.Rg1–/+; F3) 14.Nb5 Ne3 (14...a6) 15.Kc1 a6 16.Qf4 ab5 17.de3 Ra4 18.e4+–; F4) 14.Nc2 a5 (14...Qd5 15.Rf1 Rd8 16.Bc3 Bb6 17.Bb5 a6 18.Be2+–; 14...Qd6 15.Rf1 Nf4 16.Ng5 Ne2 17.Qe4 Qh2 18.Ne6+–; 14...Ne3 15.Ne3 Be3 16.Qa3 Bb6 17.Qc3 f6 18.Bc4+–; 14...a6 15.Rf1 Qd6 16.Ng5 Ne3 17.Ne3 Be3 18.Ne4+–; 14...Rb8 15.Rf1 a6 16.Qe4 Qd5 17.Qd5 Bd5 18.Ne5+–; 14...Qd7 15.Ncd4 Bd5 16.Rg1 Qh3 17.Qc2 Nd4 18.Nd4+–; 14...Bb6 15.Rf1 Rb8 16.Bb5 Ne7 17.Ne5 c6 18.Bd3+–; 14...Rc8 15.Bb5 Ne7 16.Bf1 Ne3 17.Ne3 Be3 18.Bc4+–) 15.Rf1 Qd6 16.Bb5 Nb4 17.Be5 Qd5 18.Be2+–.

13.Qb3 b6 14.a3 Be6 (14...Bb7; 14...Ne3; 14...a6; 14...a5; 14...Bg4; 14...Rb8) 15.Qc3 f6 16.Bb5 Qd5 17.Bc6 Qc6 18.d4+=.

13.Qb3 b6 14.Na3 Nb4 (14...Ne3 15.Kc1 Be6 16.Qc3 Nf5 17.Nc2 Qd6 18.Bd3+–; 14...Bf5 15.Qc3 f6 16.Bc4 Kf8 17.Nc2 Nf4 18.Ne3+–; 14...Bb7 15.Nc2 Ne7 16.Rf1 Nd5 17.Ncd4 Ngf4 18.Bc4+–; 14...Ne7 15.Nb5 Be6 16.Qc3 f6 17.Nbd4 Nd5 18.Qc1+–; 14...a6 15.Nc2 Nf4 16.Bc4 Be6 17.Qc3 Qf8 18.Ng5+–; 14...Be6 15.Qc3 Ne3 16.Kc1 Nf5 17.Nc2 Qd6 18.Bd3+–; 14...Nf4 15.Bc4 Ne6 16.Rf1 Na5 17.Qd3 Ba3 18.Ba3+–) 15.Qc3 Ne3 16.Kc1 Nf5 17.Rf1 Be6 18.Bc4+–.

13.Qb3 b6 14.Kc1 Nf4 (14...Be6; 14...Bb7) 15.Bc4 Be6 16.Be6 fe6 17.Kd1 Qd7 18.Ng5+–.

13.Qb3 b6 14.Qd3 Bf5 (14...Be6 15.Nc3 Nf4 16.Qe4 Ne2 17.Ne2 Qd5 18.Qf4+–; 14...Bg4 15.Qc3 Ne3 16.Kc1 Nf5 17.Qc4 Bh3 18.Bf1+–; 14...Bb7 15.Qc3 Ne3 16.Kc1 Nf5 17.Rf1 Qd6 18.Bc4+–; 14...Qd3; 14...Bh3) 15.Qc3 Qf8 16.Ba3 Nb4 17.Ne1 Ne1 18.Re1+=.

13.Qb3 b6 14.h3 Be6 (14...Ne3; 14...Ne7; 14...Bb7; 14...a6; 14...Bf5; 14...Nf4; 14...a5; 14...Na5) 15.Qc3 f6 16.Ba3 Ne3 17.Ke1 Nd5 18.Qc4+–.

13.Qb3 b6 14.h4 Be6 (14...Ne3) 15.Qc3 Ne3 16.Kc1 Nf5 17.Bd3 Ncd4 18.Rh2+–.

13.Qb3 Bb6 A) 14.Kc1 Be6 (14...Nf4 15.Bc4 Be6 16.Qc3 Qf8 17.Rf1 Rd8 18.Ng5+–; 14...Qf8 15.Qc2 Nf4 16.Bc4 Qd8 17.Re1 Be6 18.Qc3+–; 14...Nd4 15.Nd4 Bd4 16.Bc4 Bb2 17.Qb2 Nf4 18.Qe5+–; 14...Qe7 15.Qc3 f6 16.Bf1 Bh3 17.Bc4 Kh8 18.Rf1+–; 14...Bd7 15.Bc4 Qe7 16.Qc3 Qf8 17.Rf1 Bf5 18.Ng5+–) 15.Bc4 Nf4 16.Be6 Ne6 17.Kd1 Qd7 18.Rf1+–; B) 14.Bd3 Bg4 15.Kc1 Bf3 16.Bh7 Kh7 17.Qf3 Qg5 18.Qf7=; C) 14.Na3 Nf4 (14...Ne3 15.Kc1 Be6 16.Qc3 Nf5 17.Re1 Ncd4 18.Bc4+–; 14...Be6 15.Qc3 Ne3 16.Kc1 Nf5 17.Re1 Ncd4 18.Bc4+–; 14...a6 15.Nc4 Bc5 16.Qc3 Qf8 17.Nce5 Bb4 18.Qc1+–) 15.Bc4 Kh8 16.Bb5 f6 17.Bc6 bc6 18.Nc2+–; D) 14.Qd3 Be6 (14...Bg4; 14...Bh3; 14...Bf5; 14...Qd3) 15.Nc3 Nf4 16.Qd8 Rd8 17.Na4 Ne2 18.Ke2+–; E) 14.h3 Be6 (14...Ne3; 14...Ne7) 15.Qc3 f6 16.Na3 Ne3 17.Kc1 Nd5 18.Qc4+–; F) 14.a3 Be6 (14...Ne3; 14...a6; 14...Bg4; 14...Rb8; 14...Bh3; 14...Ne7; 14...a5; 14...Bf5) 15.Qc3 f6 16.Bb5 Qd5 17.Qd3 Ne3 18.Ke2=; G) 14.Qc3 Ne3 (14...f6 15.Bc4 Kf8 16.Ng5 h6 17.Ne6 Be6 18.Be6+–; 14...Qf8 15.Na3 Bg4 16.Nc4 Nf4 17.Nb6 Ne2 18.Ke2+–) 15.Kc1 Nf5 16.Bc4 Nfd4 17.Rf1 Be6 18.Na3+–.

13.Qb3 Nd4 14.Bd4 (14.Nd4) 14...Bd4 15.Qd3 Bf6 16.Qd8 Bd8 17.Nc3 c6 18.Rb1+–.

13.Qb3 Qd6 14.Ng5 Ne3 15.Kc1 Qg6 16.Qf7 Qf7 17.Nf7 Kf7 18.de3 Be3+–.

13.Qb3 Ne3 14.Kc1 Nf5 (14...Nd5 15.Nc3 Nb6 16.Ne4 Bd4 17.Nd4 Nd4 18.Qe3+–; 14...Ng2 15.Bc4 Qe7 16.Qc3 Qf8 17.Ng5 Bd4 18.Qc2+–) 15.Bc4 Qd7 16.Re1 a6 17.Ng5 Nd8 18.Qf3+–.

13.Qb3 Bf2 A) 14.Kc1 Bd4 (14...Nd4 15.Nd4 Bd4 16.Bc4 Bb2 17.Qb2 Qd6 18.Qb3+–; 14...Qf8 15.Rf1 Qc5 16.Qc3 Qc3 17.Nc3 Bc5 18.Ng5+–; 14...Nf4 15.Bc4 Be6 16.Be6 fe6 17.Rf1 Qd3 18.Qd3+–; 14...Bc5 15.Bc4 Qe7 16.Qc3 Qf8 17.Ng5 Bd4 18.Qc2+–; 14...Qe7 15.Bc4 Nf4 16.Rf1 Bc5 17.d4 Bd6 18.d5+–; 14...Be6 15.Bc4 Nf4 16.Be6 fe6 17.Rf1 Qd3 18.Qd3+–; 14...Bb6 15.Bc4 Qf8 16.Rf1 Na5 17.Qd3 Nc4 18.Ng5+–; 14...Qe8 15.Bb5 Be6 16.Qc2 f6 17.Bc6 bc6 18.Bd4+–) 15.Nd4 Nd4 16.Bd4 Qd4 17.Nc3 Nf4 18.Bc4+–; B) 14.h3 Be6 (14...Ne3 15.Kc1 Nd5 16.Nc3 Nb6 17.Ne4 Bd4 18.Nd4+–; 14...Bb6 15.Bd3 Bf5 16.Qc3 Ne3 17.Kc1 f6 18.Bf5+–; 14...Nd4 15.Nd4 Bd4 16.Qd3 c5 17.Bd4 Qd4 18.Qd4+–; 14...Qd6 15.Bd3 Qf4 16.Bb5 Bd7 17.Qc3 Qg3 18.Rf1+–; 14...Nf4 15.Bc4 Ne6 16.Qc3 Bd4 17.Nd4 Ned4 18.Rg1+–; 14...Bc5 15.Qc3 Qf8 16.Ng5 Nf4 17.Qc2 g6 18.Bc4+–) 15.Qc3 Ne3 16.Kc1 Nf5 17.Bd3 Bd4 18.Nd4+–; C) 14.h4 Ne3 (14...Qd6 15.Ng5 Ne3 16.Kc1 Nd5 17.Qf3 Qc5 18.Kd1+–; 14...Bb6; 14...Nf4; 14...Qd7; 14...Nd4; 14...Bd4) 15.Kc1 Be6 16.Qb7 Bd5 17.Qb5 Rb8 18.Qd3+=; D) 14.Na3 Be6 (14...Ne7 15.Ng5 Ne3 16.Kc1 Qd5 17.Qd5 N3d5 18.Nf7+–; 14...a6 15.Nc2 Nf4 16.Bc4 Qe7 17.Qc3 Nh5 18.Rf1+–; 14...Rb8 15.Nc2 Nf4 16.Rf1 Bb6 17.Bc4 Be6 18.Qc3+–; 14...Ne3 15.Kc1 Nd5 16.Rf1 Bb6 17.Bb5 Bh3 18.Re1+–; 14...a5; 14...Bb6; 14...Nf4; 14...Bc5) 15.Qb7 Bd5 16.Qa6 Nh4 17.Nh4 Bh1 18.Nf3+=; E) 14.Qd3 Qd3 (14...Bg4; 14...Be6; 14...Bf5) 15.Bd3 Bg4 16.Be2 Nf4 17.Rf1 Ne2 18.Ke2=+; F) 14.Qc3 Ne3 15.Kc1 Nf5 16.Bd3 Bd4 17.Nd4 Nfd4 18.Na3+–.

13.Qb5 Qd6 14.Nc3 Bf5 15.Na4 (15.Qb7? Rb8 16.Nb5 Qf4 17.Qb8 Nb8–+) 15...Bb4 (15...Ne3 16.Kc1 Bd4 17.Qb7+– (worse 17.Nd4 Nd4 18.Bd4 Qd4–/+)) 16.Bc3 (better 16.Rg1!? a6 17.Qb7 Ne3 18.Kc1=) 16...a6 17.Bb4 Nb4 (17...ab5? 18.Bd6 cd6 19.Nb6+– (19.Bb5 Bg4=+)) 18.Qb7 Re8 19.Nc3 Bd3 20.Kc1 (20.Ne1 Be2 21.Ne2 Ne3 22.Kc1–+) 20...Nf4 21.Bf1 Bf5 (21...Bf1 22.Rf1 Qg6 23.Ne4–/+) 22.Ne5 (22.Kd1 Nfd3 23.Qa7 Qc6–+) 22...h6 (22...Re5 23.Qb8 Qf8 24.Qf8 Kf8–+) 23.Nc4? (23.a3 Rd8 24.Nf3 Nfd3 25.Kd1–+) 23...Qc5–+ 24.Rb1? (24.Kb2 Nbd3 25.Bd3 Nd3 26.Kb3–+) 24...Nfd3 25.Bd3 Nd3 26.Kd1 (26.Kc2 Qc4 27.Qa7 Ne1 28.Kc1 Bb1 29.Kb1 Qd3 30.Ka1 Qd2–+) 26…Qc4 (26...Qc4 27.Qa7 Qg4 28.Kc2 Ne1 29.Kc1 Qg2–+) 0–1. pcmvr – pierred, net–chess.com, 2017.

13.Kc1 Nb4 (13...Qe7; 13...Qd6; 13...Bd7) A) 14.Be5 Nc6 (14...Bg4 15.a3 Bf3 16.ab4 Bc6 17.Bb5 Bb5 18.Qb5+–; 14...Bd7) 15.d4 Ne5 16.dc5 Qe7 17.Nc3 Bg4 18.Ne5+=; B) 14.Ne5 Nf4 (14...Be6) 15.Bc4 Be6 16.Be6 fe6 17.a3 Qd5 18.Rf1+=; C) 14.a3 Nf4 (14...Nd5 15.Qc2 Ngf4 16.Qc5 Ne2 17.Kd1 Bg4 18.Rf1+–; 14...Nc6) 15.ab4 Ne2 16.Kd1 Bg4 17.Ra3 Ng1 18.bc5+=; D) 14.Bd4 Nf4 (14...Bd4) 15.Bc5 Nfd3 16.Bd3 Nd3 17.Kc2 Bf5 18.Qd4+–.

13.Nc3 A) 13...Ne3 14.Kc1 Nf5 (14...Ng4 15.Ne4 Nf2 16.Nf2 Bf2 17.Bc4 Be6 18.Be6+–; 14...Ng2 15.Bf1 Bh3 16.Ng1 Bg1 17.Rg1 Qf6 18.Bg2+–; 14...Nd5 15.Qc4 Nc3 16.Qc3 Qf8 17.d4 Bb4 18.Qc4+–) 15.Ne4 Bb6 16.Re1 Nfd4 17.Nd4 Bd4 18.Bb5+–; B) 13...Bf5 B1) 14.Kc1 Nb4 (14...a6; 14...Ne3) 15.a3 Nc2 16.Ra2 Qe7 17.Qb3 Rd8 18.Qb7+–; B2) 14.Qb5 Qd6 (14...Ne3 15.Kc1 Bb6 16.Na4 Nd5 17.Nc5 Na5 18.Bd3+–) 15.Na4 Ne3 16.Kc1 Bd4 17.Qb7 Rb8 18.Qb8+–; C) 13...Nd4; D) 13...Bb6; E) 13...Be6; F) 13...Nb4 14.a3 Bd7 15.Nb5 Nd5 16.Bd3 a6 17.Qe4 Bf5 18.Qe5–/+.

12.Kd1 Nf4

13.Rg1 f6

14.Bb5 Rb8 15.Bc6 bc6 16.Qa7 Rb6 17.Bd4 c5 18.Be3 Ra6 19.Qb8 Nd3 20.a3 Nb2 21.Ke1 Nd3 22.Ke2 Ne5

23.Ne5 Bg4 24.Rg4 Qb8 25.Nd3 =.

23.Ne5 Bg4 24.Ng4 Qb8 25.Ra2 Qb5 26.Kf2 =.

23.Ne5 Bg4 24.Ng4 Qb8 25.Nc3 Bc3 26.dc3 Qb5 27.Kf3 =.

23.Ne5 Bg4 24.Ng4 Qb8 25.d3 =.

23.Rg3 Ra5–/+ 24.Ne5?? Ba6–+ 25.Kd1 Qb8 26.Nc6 Qb5 27.Na5 Qa5 28.Kc1 Bd3 29.Bf4 –+.

23.Rg3 Ra5–/+ 24.Ne5?? Ba6–+ 25.Kd1 Qb8 26.Nc6 Qb5 27.Na5 Qa5?! 28.Bh6 Qa4 29.Kc1 –+.

23.Rg3 Ra5–/+ 24.Kf2 Nd7 25.ab4 Ra1 26.Qb5 Rb1 27.Qc4 Kh8 28.bc5 =+.

23.Rc1?? Nf3–+ 24.Kf2 Nh2

25.Rc4 Qd7 26.Nc3 Ng4 27.Kg1 –+.

25.Bc5? Ng4 26.Ke2 Rb6! 27.Qc8 Qc8 28.ab4 Re6 29.Kd1 –+.

25.Bc5 Ng4 26.Ke2 Re6 27.Kd1 Bc5 28.Rc5 Nf2 29.Kc1 Nd3 30.Kc2 Nc5 31.Qb5 –+.

25.Bc5? Ng4 26.Kg2 Qd5 27.Kg3 Qe5 28.Kf3 Qf5 29.Ke2 Bc5 30.Rc3 Re6 31.Kd1 Nf2 32.Kc1 Re1 33.Kb2 Nd1 34.Kb3 Nc3 35.Nc3 Ra1 36.Kb2 Ra3 37.Qc7 –+.

25.Bc5 Ng4 26.Kg2 Qd5 27.Kg3 Qe5 28.Kf3 Qf5 29.Kg2 Bc5 30.Qc8 Qc8 31.Rc5 Qb7 32.Kg3 Qh1 –+.

13.Rg1 g6

14.Bb5 Nd3 15.Bd3 Qd3 16.Ne5 Qd6 17.Nc6 bc6 18.Nc3 (18.Rg3 Be6+–) 18...Bf5 19.Rg2 Qf4 20.Kc1 (better is 20.Qa6!?+/–) 20...Qf1 +=.

14.Bb5 Bf5

15.Bc6 Nd3

16.Bd4 bc6

17.Qc6 Bd6 18.a3 a5 +–.

17.Qc6 Bd6 18.Qd5 Bd7 19.Nc3 +–.

17.Qc6 Bd7 18.Qa6 Bf5 19.Nc3 +– (19.Ba7 Bc5–/+).

17.Qc6 Rb8

18.a3 Qe7 19.Ba7 Be4 20.Qa6 Bf3 21.Kc2 Be4 22.Qd3 Bd3 23.Kd3 Rd8 24.Kc2 Qe5 25.ab4 Qa1 –+.

18.a3 Qe7 19.ab4 Be4 20.Bc5 Nb4 21.Qg6 hg6 22.Be7 Bf3 23.Kc1 Nd3 24.Kc2 +–.

18.a3 Qe7 19.ab4 Be4 20.Bc5 Nc5 21.Qc5 Bf3 22.Kc1 Qc5 23.bc5 +–.

18.a3 Qe7 19.Ba7 Be4 20.Qe4 Qe4 21.Bb8 Qf3 22.Kc2 Nc5 =+.

18.Ba7!? Nb2 19.Ke2 Qe7 20.Be3 Be4 +–.

18.Ba7 Bd7 19.Qe4 Bb5 +–.

18.a3 Bd6

19.Ba7 Nb2 20.Ke2 Qe7 21.Be3 +–.

19.Ba7 Bd7 20.Qc2 Ba4 21.Qa4 Nb2 22.Ke2 Na4 23.Bb8 Qb8 –/+.

19.Ba7 Bd7 20.Qe4 Ba4 21.Ke2 Bb5 +–.

18.a3 Bd6 19.Ba7 Qe7

20.Bb8?! Nf2 21.Kc1 Nd3 22.Kd1 Nf2 23.Kc1 Nd3 24.Kd1 =.

20.Ne1 Be4 21.Bb8 Bc6 22.Nd3 Qe8 23.Ba7 +/–.

20.Ne1 Be4 21.Bb8 Nf2 22.Kc1 Bc6 –+.

18.a3 Bd6 19.Ba7 Qe7 20.Rg6= hg6

21.Bb8 Bd7 22.Qa6 Ba4! 23.Qa4 Nb2 24.Kc2 Na4 25.Nc3 Nc3 26.Kc3 Ba3?! 27.Nd4 –+.

21.Bb8 Bd7 22.Qa6 Ba4! 23.Qa4 Nb2 24.Kc2 Na4 25.Nc3 Nc3 26.Kc3 Qf6 27.Nd4 Bh2?! 28.Ba7 –+.

21.Bb8 Bd7 22.Qa6 Ba4! 23.Qa4 Nb2 24.Kc2 Na4 25.Nc3 Nc3 26.Kc3 Qf6 27.Nd4 Bh2?! 28.Re1 –+.

21.Bb8 Be4 22.Qc3 Bf3 23.Kc2 Qe4 =+.

21.Nc3 Nb2 22.Kc1 Rb3 23.Qa8 Qf8 24.Qf8 Kf8 =+.

17.Qc6 Qe8 18.Qe8 Re8

19.a3 +–.

19.Ba7?! Nb2 20.Kc1 Nd3 21.Kc2 Ne5 22.Kb3 Nf3 =.

19.Ba7 h6 20.Bd4 c5 +–.

19.Be3 Bd6

20.Ba7?! Nb2 21.Kc1 Nd3 22.Kd1 Nb2 23.Kc1 Nd3 24.Kd1 =.

19.Be3 Bd6 20.Nc3 c5

21.a4 Nb2 22.Ke1 +–.

21.a4 f6 22.Nd5 Kf7 23.Ke2 c4 +/–.

21.a4 f6 22.h4 a6 23.Ne1 +–.

21.Nd5 Rb8 +–.

12.Kd1 Bh3!

13.Qb5 Qd6 14.Ng5 Rd8 15.Ne4 Qf4 16.Qg5 Qg5 17.Ng5 +/–.

13.Nc3 Qd7 (13...a6 14.a3 Be7 15.Ne4 Be6 16.Nd4 Nd4 17.Qd4+/–; 13...Nf4 14.a3 Qf6 15.ab4 Ne2 16.Ne2 Qb2 17.Re1+=; 13...Rb8 14.a3 Ba5 15.Kc1 Bb6 16.Qe4 Nd4 17.Nd4+–) 14.a3 Be7 (14...Bd6 15.Ne4 Re8 16.Nd6 Qd6 17.Rg1+–) 15.Ne4 Rd8 (15...Rd8 A) 16.Nf2 Nh4+/– (16...Bg5 17.Nh3+–) 17.Bc3+/–; B) 16.Rg1 Qe6 17.Bc3+–; 15...Qd5 16.Rg1 Rd8 17.Nf2+–). Schoenwaelder – Schlenker, Reutlingen, 1985.

13.Rg1 a6+– 14.Ne5 Qg5 15.Qb3 Bc5 16.Qf7 Kh8 17.Nf3 +–.

13.Rg1 Rb8 14.Qb3 Bc5 15.Qc3 Qf8 16.Ba3 Ba3 17.Na3 +–.

13.Rg1?! Bc5? 14.Rg2 Bg2 15.Qg4. Schlenker.

13.Rg1 Qd6 (13...Rb8 14.Qb3 Bc5 15.Qc3 Qf8 16.Ba3 Ba3 17.Na3+–; 13...a6+– 14.Ne5 Qg5 15.Qb3 Bc5 16.Qf7 Kh8 17.Nf3+–) 14.Qb3 Na5 15.Qd3 Qd3 16.Bd3 Bc5 17.Bd4 +/–.

13.Rg1?! Qd7!! 14.Ng5? Ne3! 15.Kc1 Nd4!! 16.Qd7 Ne2#. Schlenker.

13.Rg1?! Qd7!! 14.Ng5? Ne3! 15.Ke1 Bf5. Schlenker.

12.Kf2 Bh3

13.a3 Bc5 14.d4 Qe7 (14...Qf6 15.Rf1+/–) 15.Qb3 (15.dc5 Qe3 16.Kg3 Qe2+–) 15...Re8 16.Bc4 Ne5?? (16...Bd6 17.Nbd2+/–) 17.Bf7 (17.Ne5 Qh4 18.Ke2 Qe4 19.Kd2 Qf4 20.Kc2 Ne3 21.Qe3 Qe3 22.Bf7 Kf8 23.Be8 Bd4 24.Bd4 Bf5 25.Kb2 Qd4 26.Nc3 Qd2 27.Kb3 Bc2 28.Kb4 Qd4 29.Nc4 a5 30.Kb5 c6 31.Bc6 bc6 32.Ka5 Qc5 33.Ka6 Qc4 34.Kb6 Qc3 35.Rhc1–+) 17...Nf7 18.dc5 Qe2 (18...Qc5 19.Kg3 Qh5 20.Qb7 Qg6 21.Kf2–/+) 19.Kg3 Re3 (19...Ne3 20.Rg1 Bg2=) 20.Qb7 h5 (20...Bf5+–) 21.Nbd2+/– Qd2 22.Qa8 Kh7 23.Qe4 (better is 23.Bc1 Rf3 24.Qf3 h4 25.Kh3 Ng5 26.Kg4 Nf3 27.Bd2 Nd2 28.c6+–) 23...g6 24.Bf6?? (24.Bc1 Qc1 25.Rhc1 (25.Rac1 Re4 26.Kh3 Rg4–+) 25...Re4 26.Kh3–+) 24...Bg4–+ (24...Re4 25.Nd2 Rg4 26.Kf3 Rf4 27.Kg3 Rg4 28.Kf2 Rf4 29.Kg3 Rg4=) 25.Rad1 (25.Rhd1 Bf3 (25...Re4 26.Nd2 Re6 27.Rf1=+) 26.Qf3 Rf3 27.Kf3 Ng5 28.Bg5 Qg5–+) 25…Qe2 (26.Rdf1 Re4–+; 25...Re4 26.Nd2 Re6 27.Rdf1=+; 25...Bf3 26.Rd2 Be4 27.Kf2 Rf3 28.Kg2 Rd3 29.Kf2 Rd2 30.Ke3 Bh1 31.Kd2–+) 0–1. Perez Marin – Jaime Chavez, corr Cuba, 1996.

13.Ba6 ba6 14.Qc6 Nf4 15.Qe4 (15.Qa6 Nd3 16.Ke2 Qe8 (16...Nb2 17.Qb7–+) 17.Ne5 Nb2–+) 15...Nd3 16.Ke3?? (better is 16.Kg3 Bd6 17.Be5 Be5 18.Ne5 Qg5 19.Ng4=) 16...Nb2–+ 17.Qb4 Bg2 18.Qb2 Qd5 (18...Bh1?! 19.Qd4=) 19.Ne5? (better is 19.Ne1 Qf5 20.Ke2 Re8 21.Kd1 Bh1 22.Nc3=+) 19...Qe4–+.

13.Bb5!? Nf4 14.Bc6 Nd3 15.Kg3 Qc8 =.

13.Bb5 Nf4 14.Rg1 Bc5 15.d4 Bb6 +–.

13.Rg1 Qe7

14.Ba3 Nd4 15.Bd1 Nf3 16.Qb4 –+.

14.Ba3 Nd4 15.Nd4?? Qh4 16.Kf1 Ne3.

14.Ba6 Qe4 15.Bb7 Bc5 16.Bd4 Bd4 17.Qd4 Qf3 18.Kf3 Nd4 19.Kg3 Rb8 20.Bg2 Bg2 21.Kg2 Nc2 22.Nc3 Na1 23.Ra1 Rd8 24.Rd1 c5 25.Kf3 f5 26.Kf4 g6 27.Ke5 Rd4 28.d3 a5 29.Nd5 a4 30.Rc1 Rd3 31.Rc5 Kg7 32.Rc7 Kh6 33.Nf6 Kg5 34.Nh7 Kh5 35.Nf8 Ra3 36.Rc2 g5 37.Kf6 f4 38.Ne6 f3 39.Ng5 Rd3 40.Rc5 f2 41.Ne4 Kh4 42.Rf5 Rd8 43.Ke5 Rb8 44.Rf2 Rb5 45.Kd4 a3 46.Nd2 Rb2 47.Nf3 Kh3 48.Rb2 ab2 49.Nd2 b1Q 50.Nb1 1–0. Crafty 19.01 – Fritz 8, 2003.

14.Bb5 Bc5 15.Kg3 Bd6 16.Kh3 Nf4 17.Qf4 Bf4

18.Bg7 Qe6 19.Kh4 Ne7 20.Be5 Ng6 21.Rg6 fg6 22.Bf4 Rf8 –+.

18.Bg7 Qe6 19.Kh4 Ne7 20.Be5 Ng6 21.Rg6 hg6?! 22.Bf4 Qf6 23.Kg4 Qa1 24.Nc3 –+.

18.Rg7 Kf8

19.Bc4 Qe4 20.Rf7 Ke8 21.Bd5 Qd5 22.Rf4 +=.

19.Rg4 Qe6 20.Bg7 Ke7 21.Nc3 h5 22.Re1 hg4

23.Kh4 gf3 24.Nd5 Kd6 25.Re6 Kd5?! 26.Rf6 Bd6 27.Bc6 Kc6 28.Rf3 –/+.

23.Kh4 gf3 24.Nd5 Kd6 25.Re6 Ke6?! 26.Nf4 Kd6 27.Bb2 =.

19.Rh7?? Qe6–+

20.Kh4 Bg3 21.hg3 Qe4.

14.Bd1 Bc5=

15.Kg3 Qd6 16.Kh3 Nf4 17.Qf4 Qf4 18.Rg7 Kf8 19.Kg2 Nd4 20.Rg3 h5 21.Bd4 Bd4 22.Nd4 Qd4 –/+.

15.Kg3 Qd6 16.Kh3 Nf4 17.Qf4 Qf4 18.Rg7 Kf8 19.Rg3 =.

15.Kg3 Bg1 16.Ng1? Qg5 17.Kh3 Nf4 18.Qf4 Qf4 –+.

15.Kg3 Bg1 16.Kh3 Ne1 17.Ng1 Nd3 18.Qb3 Rd8 =.

15.Kg3 Bg1 16.Kh3 Ne1 17.Qg4 +–.

14.Bf1 Bc5=

15.Kg3 b5?? 16.Bb5 (16.Qb5 Qd6 17.Kh3 Nf4 18.Kg4 Rb8 19.Qb8 Nb8=) 16...Bd6 17.Kh3 Nf4 18.Qf4 Bf4 19.Rg7 (19.Bc6?! Qe6 20.Kg2 Qc6=+) 19...Kf8 20.Bc4 Nd8 (20...Qe4 21.Rf7 Ke8 22.Bd5 Qd5 23.Rf4+–) 21.Rh7 (better 21.Kg2+–) 21...Qe4–/+ 22.Rh8 Ke7 23.Nd4 Ne6 The mate threat is Rxh8 24.Ne6 Rh8 25.Bh8 fe6 26.Na3 Qh7 27.Kg4 Qh2 (27...Qh8?! 28.Re1 e5 29.Re2–+) 28.Kf3 Qh8 29.Rb1 Bd2 30.Bb3 c5 31.Rd1 (31.Ke2 Qh2 32.Kd3 Bb4–+) 31...Qc3 (31...Qh3 32.Kf2 Qe3 33.Kg2 Qe2 34.Kg3 Be1 35.Kf4–+) 32.Kg2 Bf4 33.Nc4 e5 (33...Qg3 34.Kf1–+) 34.Rd6 (34.Kf1 e4 35.Rd5 Qf3 36.Ke1 e3 37.Ne3 Qe3 38.Kf1 c4 39.Bc4 Qc1 40.Kg2 Qc4–+) 34...Qg3 35.Kf1 e4 36.Ra6 Bb8 37.Nb2 (37.Ra4 e3 38.Ne3 Qf3 39.Kg1 Qe3 40.Kf1 a6–+) 37…Qf2 (better 37...Qh3 38.Kf2 Bg3 39.Ke3 Bh4 40.Ke4 Qg2 41.Kd3 Qf1 42.Kc2 Qa6–+). Baensch,Hans – Hiemer,Jochem, BdF, 1988.

15.Kg3 Bd6 16.Kh3 Nf4 17.Kg3 Nd3 18.Kg2 Nb2+–.

15.Kg3 Qd6 16.Kh3 Nf4

17.Kg3 Nd3 18.Kg2 Qg6 19.Kh3 Bg1 20.Bd3 Qd3 21.Kg2 =.

17.Kg3 Nd3 18.Kh3 Nb2 19.Qb3 Bg1 20.Qb2 Bb6 21.Qc3 Qe6 22.Kg2 Qe4 –+.

17.Kg3 Nd3 18.Kh3 Nb2 19.Qb3 Bg1 20.Ng1 =.

17.Kg3 Nd3 18.Kh3 Bg1 19.Bd3 Qd3 20.Kg2 =.

17.Qf4 Qf4–+ 18.Rg7 Kf8

19.Kg2? Nd4 20.Rg3 Nf3 21.Bg7 Ke7 –+.

19.Rg3 Nd4 20.Bd4 Bd4 –/+.

19.Rg3 Bf2 20.Kg2 Bg3 21.hg3 Qg4 –/+.

11.Qb3 Qe7

12.a3 Ba5 13.Bc3 Ng2 14.Kd1 Nf4 15.Re1 Bg4 (better is 15...Be6 16.Bc4 Bc3 17.Qc3 Qd7+/–) 16.Ba5?? (16.Qb7 Qe8 17.Qb5 Bc3 18.dc3+/–) 16...Na5 (16...Ne2 17.Qb7 Qe8–/+) 17.Qb4 c5?? (better is 17...Qf6 18.Nc3 Nc6+=) 18.Qf4+– (18.Qf4 Be6 19.Nc3+–; 18.Qa5 Ne2 19.Nc3 b6 20.Re2 Bf3+= (20...ba5?? 21.Re7 Bf3 22.Kc2+–)) 1–0. orangutanb4 (1935) – pompkafr (1825), internet, 2011.

12.a3 Ng2 13.Kd1 Be6 14.Qa4 Bc5 15.Bb5 Nd8 16.Bf1 Bh3 17.Bg2 Bg2 18.Qg4 Bf3 19.Qf3. Dopper.

12.a3 Ng2 13.Kd1 Be6 14.Qa4!? Bc5 15.Bf1 +/–.

12.a3 Ng2 13.Kd1 Be6 14.Bc4 Bc4+= 15.Qc4 Rd8 (15...Bd2 16.Qe2 (16.Kd2? Qe3 17.Kc2 Qf3–+) 16...Qe2 17.Ke2+=) 16.Kc1+/– Ne3 17.Qh4 (17.de3?! Qe3 18.Nbd2 Bd2 19.Nd2 Rd2+= (worse is 19...Qd2 20.Kb1+=)) 17...Qc5 18.Nc3 Bc3 19.Bc3 (19.dc3?? Qf5 20.Qd8 Nd8–+) 19...Rd3 20.Qe1 (20.de3 Qc3 21.Kb1 Qb3 22.Kc1 Rc3 23.Kd2 Rc2 24.Ke1 Qe3 25.Kf1 Qf3 26.Ke1 Qh1) 20...h6 21.Rg1 (21.de3 Rc3 22.Kd2 Rb3–+) 21...Nf5 22.Rf1 Ne3 23.Rf2 (23.de3 Re3 24.Qd2 Rc3 25.Kb2 Re3–+) 23...Ne7 24.Qe2 (24.de3 Rc3 25.Kb2 Nd5+= (worse is 25...Re3 26.Qb4 Qd5 27.Raf1+=)) 24...Rc3 25.dc3 Ng4 26.Nd4 Nf2 27.Qf2 Nd5 28.Qf3 Nc3 29.Nb3 Qc4 30.Kd2 (30.Qb7 Nb5 31.Kd2 Qb3 32.Qc8 Kh7 33.Qf5 g6–+) 30...Ne4 31.Ke1 Nd6 (31...Qe6 32.Qe3+=) 32.Rc1+/– Qh4 33.Kf1 Qe7 34.Qf4 b6 35.Nd4 Qd7 36.Nc6 a5 37.Qf3 Qe6 38.Re1 Qc4 39.Kg2 g6 40.Ne7 Kg7 41.Qa8 f5 42.Kh1 Kh7 43.a4 1–0. Fagerbekk,Egil (2175) – McCartney,Patrick J (2100), WS/M/329 ICCF, 2011.

12.Bc3 Ng2 13.Kd1 Be6 14.Qb2 Re8 (14...Nf4 15.d4 Bg4 16.Rg1 Qe2 17.Qe2=+) 15.Bb4 Nb4 16.Ne5 (16.Nc3 Bg4 17.Rf1–/+) 16...Bf5 (16...Bd5 17.Nc3–/+) 17.a3 (17.d4!? Nc2 18.Kc1–/+; 17.Nc3=+) 17...Nc2–/+ 18.Ra2 (18.d4!?–/+) 18...Qe5–+ 19.Qe5 Re5 20.Bf3 Nce1 (20...Nh4 21.Bb7 Rb5 22.Nc3 Rb7 23.Rc2 Bc2 24.Kc2–+) 21.Bg2 Ng2 (21...Bb1?! 22.Rb2 Ng2 23.Rb7=) 22.Nc3 Bg4 23.Kc1 Nf4 24.d4 Re3 25.Nb5 a6 26.Nc7 Rc3 27.Rc2 Ne2 (27...Ra3!? 28.Kb2 Rd3 29.Re1–+) 28.Kb2 Rc2 29.Kc2 Nd4 30.Kc3 Ne6 31.Ne8 Bf3 32.Rb1 h5 (32...b5!?–/+) 33.Nd6 b5 34.Rf1 Ng5 35.Kb4 h4 36.Ka5 Bg2 37.Rf5 f6 38.Ka6 Nf3 39.h3 Ne5 40.Rf4 (worse 40.Kb5 Bh3 41.Rf2 Bd7 42.Kb6 h3–+) 40...Bh3 41.Rh4 Bf1 42.Nb5 The passed pawn on a3 will quickly become a dangerous weapon 42...g5 43.Rh1 Bd3 44.a4 Kg7 45.Kb6 f5 46.Nd6 f4 47.a5 ½–½. Junge,W – Rudniev,J, corr, 1975.

12.Bc3 Ng2 13.Kf2?? Bc5–+ 14.d4 (14.Kf1 Bh3 15.Be5 Ne5–+) 14...Qe3 15.Kg2 Qe2 16.Kg3 (16.Kg1 Bh3 17.Qf7 Kh8 18.Nh4 Bd4 19.Bd4 Qe1 20.Qf1 Qf1) 16...Bd6 17.Ne5 Ne5 (17...Qe3 18.Kh4 Be7 19.Kh5 Qg5) 18.de5 (18.Qe6 Nd3 19.Kh4 Qe6 20.Nd2 Qg4) 18...Be7 (18...Qe3 19.Kh4 Be7 20.Kh5 Qe2) 19.Re1 (19.Qf7 Kf7 20.Rf1 Qf1 21.e6 Be6 22.Bd2 Bd6 23.Kh4 Kg6 24.Bf4 Qf4) 19...Bh4!! 20.Kh4 (20.Kh4 Qg4) 20…Qg4 0–1. olawoj – kaniatv, kurnik, 2014.

12.Nc3 Be6 13.Qa4 Ng2 14.Kd1 Rd8 15.Kc1 Bf5 16.Bd1 (16.Bb5 Qc5 17.Bc6 bc6 18.Qd1–/+) 16...Nf4= 17.Bc2 Bg4 18.Rf1 Bc3 (better is 18...Bf3!? 19.Rf3 Qe1 20.Nd1 Qd2 21.Kb1 Qh2+=) 19.Qf4 (19.Bc3 Ne2 20.Kb2 Bf3 21.Rf3 Nc3 22.dc3 b5+–) 19...Bb2 20.Kb2 Bf3 21.Rf3 Rd4 22.Qe3 Qb4 23.Qb3 (23.Kc1!? Qf8+–) 23...Rd2+/– 24.Qb4 (24.Re1!? Rc2 25.Kc2 Nd4 26.Kd3 Nb3 27.Re8 Qf8 28.Rf8 Kf8 29.ab3+/–) 24...Nb4+= 25.Rc1 (25.Rc3 Rh2 26.Rc7+=) 25...Nc6?? (25...Rh2 26.Rb3 c5+= (26...Rc2? 27.Rc2 Nc2 28.Rb7+–; worse is 26...Nc2 27.Rc2 Rc2 28.Kc2+=)) 26.Rd3 Rh2 27.Kb1 g6 28.Ba4 Nb4 29.Rd8 Kg7 30.Bb3 c6 31.Rd7 Rf2 32.Rb7 Nd3 33.Rd1 Nc5 34.Ra7 Nb3 35.ab3 h5 36.Rc7 Rf6 37.Rc1 h4 38.R7c6 Rf3 39.R6c3 Rf2 40.b4 g5 41.b5 Rf5 42.Rb3 g4 43.b6 g3 44.b7 Rg5 45.b8Q h3 46.Rg3 (46.Rg3 Rg3 47.Qg3 Kf6 48.Rc5 Ke6 49.Qe5 Kd7 50.Rc7 Kd8 51.Qe7) 1–0. orangutanb4 (1940) – pionokio26 (1930), internet, 2012.

12.Nc3 Be6 13.Qa4 Ng2 14.Kd1 Re8 15.a3?? (better 15.Qb5+–) 15...Bc3–+ 16.Bc3 Bb3 17.Qb3 Qe2 18.Kc2 Qf3 19.Rhf1 Qe4 20.Kb2 Nf4?? (20...Nd8 21.Qb4–+) 21.Ka2?? (better 21.Rae1!? Qe1 22.Re1 Nd3 23.Ka2 Ne1 24.Qb7+–) 21...Ne6 (21...Nd4!? 22.Bd4 Qd4–+) 22.Rae1–/+ Qd3 23.Rg1 Ncd4 24.Qb7 Nf3?? (better 24...Ne2 25.Rg2 Nc3 26.dc3 Qc3–+) 25.Re6!+– fe6 (25...Re6 26.Qb8 Mate attack; 25...fe6 26.Qc6 Double attack (26.Qc6 Decoy)) 26.Rg7 (26.Qc7?! Qc2 27.Ka1 Qc3 28.Qc3 Ng1+–) 26...Kf8 27.Qc7?? (better 27.Ka1 Nd2 28.Rc7+–) 27...Qc2= 28.Ka1 Qc1 29.Ka2 Qc2 30.Bb2 Qc7 31.Rc7 Rd8 32.Rh7 Rd2 33.Ra7 Rh2 34.Kb3 e5 35.Ra5 (35.a4!?+=) 35...e4=+ 36.Rf5 Ke7 37.a4 Kd6 38.a5 Rh7 39.Rf6 Kd5 40.Kb4 Rb7 (40...Rb7 41.Rb6 Rb6 42.ab6 Kc6=) 0–1. carocan (1715) – pompkafr (1910), kurnik, 2011.

12.Nc3 Ng2 13.Kd1 Be6 14.Bc4?? (14.Qa4!? Rd8 15.a3+/–) 14...Bg4?? (14...Na5 15.Be6 Nb3 16.Bb3–+) 15.Rf1?? (15.Nd5 Qe4 16.Nb4 Nb4 17.Qb4 (worse is 17.Bf7 Kh8–/+) 17...Ne3 18.de3 Bf3 19.Kd2 Rd8 20.Bd4 Bh1 21.Qc5+/–) 15...Rd8?? (better is 15...Bf3 16.Kc1 Ne5–+) 16.a3?? (better is 16.Nd5 Qe4 17.Kc1+/– (17.Nc7?? Bf3 18.Qf3 Rd2 19.Kc1 Qc2)) 16...Ne3–+ 17.Kc1 Bc3 18.Qc3+– Nc4 19.Qg7 (19.Qc4 Bf3 20.Bg7 Kg7 21.Qc3 Nd4 22.Rf3 Qe5 23.Rg3 Kf6–/+) 1–0. orangutanb4 (2085) – pawloob (1675), internet, 2011.

12.Nc3 Ng2 13.Kd1 Nf4 14.Rg1 (better 14.Re1 Be6 15.Qc2+–) 14...g6?? (better 14...Bc3 15.Qc3 Qe2 16.Kc1 Nd3 17.Kb1 f6 18.Qf6 Qd1 19.Rd1 gf6 20.Bf6 Bf5=+) 15.a3?? (15.Bb5 Bc5 16.Bc6 Bg1+–) 15...Bc5?? (better 15...Bc3 16.Bc4 Bb2 17.Qb2 Na5–+) 16.Rg5 (better 16.Re1!? Bf2 17.Qc4+–) 16...Nd4+= 17.Nd4 Bd4 18.Nd5?? (better 18.Rg3+–) 18...Qg5 19.Bd4 Qd5 (19...Ne2 20.Nf6 (20.Ke2? Be6–+) 20...Kg7 21.Ke2 Qg2 22.Kd1=) 20.Qd5 Nd5 21.Bc4 Be6 22.Kc2 b6 23.Re1 c5 24.Bb2 Ne3! 25.Re3 (25.de3 Bc4 Discovered attack; 25.Re3 Bc4 Discovered attack) 25...Bc4 26.Re7 Be6 27.Rc7 Kf8 28.Bf6 Ke8?? (28...c4 29.d3 b5 30.dc4 bc4 31.Bd4–+) 29.Kc3?? (29.Re7 Kf8 30.Rc7–+) 29...a6 (29...h6 30.h4–+) 30.a4 Rc8 31.Re7 Kf8 Black prepares c4 32.Ra7 (32.Rb7 b5! 33.ab5 ab5 34.Rb5 c4–+) 32...b5 Black intends c4 33.a5? (better 33.Ra6 b4 34.Kb2–+) 33...b4 34.Kb2 c4 (better 34...Bc4!? 35.Rd7–+) 35.Ra6 h6 36.Rb6 c3 (better 36...b3!?–/+) 37.dc3= bc3 38.Bc3 g5 39.Bf6 Ra8 40.a6 (40.Kc3 Bc8=) 40...Kg8 (40...Bc8–/+) 41.Ka3?? (better 41.Bd4+=) 41...Bc8 42.Kb4 Ra6 43.Kc5 Rb6 44.Kb6 Kh7 45.Kc7 Be6 46.Kd6 Kg6 47.Ke5 Bd7 48.Be7 f5 49.Bf8 h5 50.Be7 h4 51.Bd8 Kh5 52.Bb6 Kg4 53.Bg1 (53.Bd8–+) 53...Kh3 54.Be3 (54.Bb6–+) 54...Kg2 (better 54...f4 55.Bf2 Kh2–+) 55.Bg5–/+ Kh2 56.Bh4 Kh3 57.Bf2 f4 (57...Kg4–/+) 58.Kd4?? (better 58.Kf4 Be6 59.Bd4=) 58...Kg2–+ 59.Be1 f3 60.Ke3 f2?? (better 60...Be6–+) 61.Bf2= Be6 62.Be1 Kh3 63.Kf4 Kg2 64.Ke5 Kf1 65.Bc3 Ke2 66.Bd4 Kd3 67.Bc5 1–0. orangutanb4 (2090) – pawloob (1670), kurnik, 2011.

12.Qe3?? Qe3–+ 0–1. carocan (1735) – pompkafr (1890), internet, 2011.

12.Ne5 Ng2 13.Kd1 Ne5 14.Qg3 Ng6 15.Qg2 Bd7 16.h4 Rd8 17.h5 (17.Qb7 Ba4 18.Kc1 Qd6–+) 17...Bc6 18.Bf3? (better is 18.Qg1 Bc5 19.Qf1=) 18...Bf3?? (18...Ba4 19.Kc1 Qc5 20.Nc3 Nf4–+) 19.Qf3+/– Ne5 20.Qg3 f6 21.h6 g6 22.Re1 Bd6 23.Qb3 Kh8 24.Nc3 Qd7 25.Nd5 Qg4 26.Kc1 Qf5 27.Ne7?? Be7–+ 28.Be5 fe5 29.Qf7?? Qf7 (29...Qf7 30.Re3 Qf2 31.d3 Qe3 32.Kb2 Qd2 33.Kb3 Rd3 34.Kc4 Qc3 35.Kb5 Qb4) 0–1. nizinna (1700) – pompkafr (1910), internet, 2011.

12.Ne5 Ng2 13.Kf2 Ne5 14.Qg3 (14.Kg2 Be6 15.Qg3 Bd5 16.Kf1 Qf6 (16...Bh1?! 17.Be5 g6 18.d4=) 17.Ke1 A) 17...Bh1 18.Be5 (worse is 18.Qe5 Qe5 19.Be5 Re8–/+) 18...Bd6 19.Bf6 Bg3 20.hg3 gf6 21.Nc3+/–; B) 17...Re8 18.Be5 Re5–+ (worse is 18...Qe5 19.Qe5 Re5 20.Rf1+=)) 14...Nh4 (14...Bd6 15.Kg2 (15.Qg2? Qh4 16.Ke3 Bh3–+) 15...Ng6 16.Qe3 Nf4 17.Kf1 Bh3 18.Kf2 Qh4 19.Qg3 Nd3 20.Bd3 Bg3 21.hg3–+) 15.Be5 (15.Qe5!? Bc5 16.Ke1 Qe5 17.Be5+/–) 15...Ng6 16.d4 c5? (16...Ne5 17.Qe5 Qh4 18.Kg1+=) 17.h4 cd4 18.Bd4 Bd6 19.Qg5 f6 20.Qg2 Nf4 21.Qf3 Bd7 22.Nc3 (better is 22.Bc4!? Be6 23.Re1+/–) 22...Bc6+= 23.Qe3 Qe3 24.Ke3 Re8 25.Kf2 Bh1 26.Rh1 Bb4 27.Bb5 Rd8 28.Be3 Bc3 29.Bf4 a6 30.Bc4 Kh8 31.Rc1 Ba5 32.Be2 b5 (better is 32...g6!?+/–) 33.Rc6+– g5 (better is 33...Ra8+–) 34.hg5 fg5 35.Bg5 Rf8 36.Bf3 1–0. nizinna (1635) – pompkafr (1835), internet, 2011.

12.Kf2 Ng2 13.Qc4 Be6 14.Qe4 f5 15.Qd3 Rd8 16.Qd8 (better 16.Qb5!? Nf4 17.Re1+–) 16...Qd8=+ 17.Kg2 g5 18.Rg1 Bc5 0–1. Sollai,Solene (1805) – Fournier,Frederic (1990), echecsemail.com T618, 2003.

12.Kf2 Ng2 13.Bc4 Nf4 14.Re1 Bc5 15.d4 Be6 16.Be6 Bb4 17.Re4+–.

12.Kf2 Ng2 13.Rg1 Bh3 14.d4 Re8 15.Bc4 Na5 16.Bf7 Kh8 17.Qb4=.

12.Rg1 Bf5 13.Na3 Re8 +/–.

12.Kf2 Ng4

13.Kf1+– Be6

14.Qa4 Qc5 15.d4 Ne3 16.Kf2 +/–.

14.Qc2 Rd8 15.Nc3?? (better 15.Qc1+=) 15...Qc5–+ 16.Ne4 (16.d4 Rd4 17.Qc1 Bc3 18.Nd4 (18.Bc3?? Rd1 19.Be1 Qf2; 18.Qc3?? Rd1 19.Qe1 Qf2) 18...Qd4 19.Bg4 Bc4 20.Be2 Qf6 21.Kg1 Bb2 22.Qb2 Qb2 23.Bc4 Qa1 24.Kf2 Qh1 25.h3–+) 16…Qc2 (16...Qc2 17.h3 Qb2–+) 0–1. emeryt85 – stachista (1635), kurnik, 2014.

14.Qc2 Re8 15.Nc3?? (better 15.Bb5+–) 15...Qc5= Threatening mate: Qf2 16.Ke1 Bf5 17.Qb3 Bc3 18.Qc3 Threatening mate... how? 18...Qf2 19.Kd1 Qe2 20.Kc1 Nge5 21.Ne1 a5 22.Qg3 Nb4 23.Be5 Re5 24.Qc3 Re6 25.Kb2 Rb6 (25...Rb6 26.Nf3 Nd5 27.Qb3 Rb3 28.ab3 Qg2–+) 0–1. Dopper,Johan – Van Loon,W, corr NED–ch, 1991.

14.Bc4 Qc5 15.Ke1 Bc4 –+.

14.Qa4 Re8

15.Bb5 Qc5 16.d4 Bc4 17.Bc4 Qc4 18.Kg1 Qe2 19.Qc2 Qe1 20.Ne1 Re1.

15.Nc3 Ba2 16.Ra2 Bc3 17.Bb5+–.

15.Nc3 Ba2 16.Na2?? Qe2 17.Kg1 Qf2.

15.Nc3 Ba2 16.Bb5 Qc5 17.d4 Bc4 18.Bc4 Qc4 19.Kg1 –+.

15.Nc3 Bd5 16.Qb5 Bc3 17.dc3?! Ne3 18.Kf2 Ng2 +/–.

15.Nc3 Bd5 16.Qb5 Bc3 17.Bc3 (17.dc3?? Qe3 18.Ke1 a6–+) 17...a6 18.Qd3 Be4 19.Bb4 Nb4 (19...Bd3?! 20.Be7 Be2 21.Ke2 Re7 22.Kf1–/+) 20.Qa3 Bd3!! 21.Bd3 (21.Qd3 Nd3) 21...Qc5 22.Bh7 Kh7 23.d4 (23.Ng5 Qg5 24.Qf3 Qb5 25.d3 Nd3 26.Qg4–+) 23...Qc2 24.Ng5 Kg6 25.Qg3 (25.Ne4 Re4 26.Qf3 Qc4 27.Kg1 Qd4 28.Qe3 Qe3 29.Kf1 Qf2) 25…Qc4 (25...Qc4 26.Kg1 Qd4 27.Qe3 Qe3 28.Kf1 Qf2) 0–1. Nicklich,Wolfgang – Junge, corr DDR, 1978.

15.Nc3 Bd5 16.Qb5 Bc3 17.Bc3 a6 18.Qd3 Be4 19.Qc4 b5 20.Bf6?? (better 20.Qb3+–) 20...Nf6 (20...Qf6 21.Qc3 Nd4 22.Re1–+) 21.Qb3 (21.Qc3 b4 22.Qe3 Nd5–+) 21...Bd5 22.Qe3 (22.Qd3 Nb4 23.Qe3 Qe3 24.de3 Na2–+) 22...Qd6 (22...Qe3 23.de3 Ng4 24.Rc1–+) 23.Qf2 Ng4 24.Qg3 Bf3 25.Qf3 Nd4 26.Qg4 Qf6 (26...Qf6 27.Bf3 Nf3 28.Qf3 Qa1 29.Kf2 Qh1–+) 0–1. Jeschke,Holger – Rost,Werner, corr, 1995.

15.Nc3 Bd5 16.Qb5 Bc3 17.Bc3 a6 18.Qd5?? Qe2 19.Kg1 Qf2.

11.Qb3 Ng2

12.Kd1 Bc5 13.Kc1 Nf4 14.Qc4 (14.Bc4 Be6 15.Be6 Nd3 16.Kd1 fe6 17.Ke2 Nf4 18.Kf1+=) 14...Ne2 (14...Qd6 15.Kd1 Ne2 16.Qe2 Bg4 17.Rf1 Nd4 18.Qg2–+) 15.Qe2 Bg4?? (better 15...Nb4 16.Ne1 (16.Bd4 Bf5 17.Bc5 Nd3 18.Kd1=) 16...Be6+– 17.Qe5 Qf8 18.Nc3+–) 16.Qg2+– (16.Qg2 Qd7 17.h3+–) 1–0. Grigutsch,Klaus Dieter – Preussner,Michael, corr DDR–ch M947, 1990.

12.Kd1 Bc5 13.Qc3 Qf8 14.Ng5 (14.Ba3 Ba3 15.Na3 Nf4 16.Rg1 Be6 17.Bb5 Nd5 18.Qb2+–; 14.Rf1 Nf4 15.Ng5 Ne2 16.Qd3 f5 17.Qe2 h6 18.Ne6+–) 14...Nf4 15.Rf1 Ne2 16.Qd3 f5 17.Qe2 h6 18.Ne6+–.

12.Kd1 Bc5? 13.Qc3 Bf8 14.Rg1 Bh3 15.Bf1 1–0. De Bouver,Guido – Burnay,Gerard, 2001.

12.Kd1 Bc5 13.d4 Be6 14.Qd3 (14.Qb7 Nd4 15.Nd4 Bd4 16.Bd4 Qd4 17.Kc1 Qe3 18.Kb2 Qe2 19.Ka3 Qe3 20.Kb2 Qd4 21.Ka3 Rd8–+) 14...Nf4 15.Qe4 (15.Qd2 Bd6+–) 15...Qf6 (15...Ne2 16.Ke2 Bd5–/+) 16.Nbd2+= (16.dc5 Qb2 17.Qf4 Qa1–+) 16...Bd5 17.Qe3 (17.dc5 Qb2 18.Rb1 Qf6+=) 17...Bb6?? (better 17...Nd4 18.Nd4 Bh1–/+) 18.Rf1+– Rd8 19.Ne5 g5 20.h4 h6? (better 20...Qe5! 21.Qe5 Ne5 22.de5 Be3=+) 21.hg5 hg5 22.Ndf3?? (better 22.Nc6 Bc6 23.Nb3+–) 22...Bf3–/+ 23.Rf3? (better 23.Nf3 Nd4 24.Nd2–/+) 23...Ne5 24.Rg3 Nc6 25.Kc2 (25.Ke1 Nd4 26.Bd1–+) 25...Bd4 26.Bd4 (26.Bf3 Qf5 27.Qe4 Qc5 28.Kb1 Bb2 29.Qc2 Qc2 30.Kc2 Ba1 31.Bc6 bc6 32.Rg5 Kf8 33.a3–+) 26...Nd4 27.Kc1 Qc6 (27...Nfe2 28.Kb2 Nf5 29.Qc3 Nc3 30.Rg5 Qg5 31.Rg1 Qg1 32.a4 Qb1 33.Kc3 Ne3 34.a5 Rd3) 28.Kb2 Qb6 (28...Nfe2?? 29.Qg5 Kf8 30.Qd8 Qe8 31.Rg8 Kg8 32.Qe8 Kg7 33.Qe5 f6 34.Qc7 Kg6 35.Rh1+–; 28...Nde2 29.Rg5 Kh7 30.Rag1 Ng1 31.Qf4 Qc3 32.Kc3 Ne2 33.Kc4 Nf4 34.Rf5–+) 29.Ka3 Nc2 (29...Nfe2?? 30.Qg5 Qg6 31.Qd8 Kg7 32.Rg6 Kg6 33.Qg8 Kf5 34.Qf7 Ke4 35.Rd1+–) 30.Ka4 Qb4 0–1. carocan (1775) – piiotr99 (1900), kurnik, 2012.

12.Kd1 Nf4 13.Nc3 Ne2 14.Ne2 Bg4 (14...Be6!? 15.Qe3 Bd5+–) 15.Rg1+– Qd7 16.h3?? (better 16.Bg7 Kg7 17.h3+–) 16...Bf3–+ 17.Rg7 Kf8 18.d4 Bd5 (better 18...Be2 19.Ke2 Qe7 20.Kd3 Kg7 21.d5 Kf8–+) 19.Qg3=+ Qf5 20.Rg8 Ke7 21.Ra8?? (better 21.Qe3 Be4 22.Qg5 Qg5 23.Rg5–/+) 21...Qf1 22.Kc2 Qe2 23.Kc1 (23.Kb1 Be4 24.Qd3 Qd3 25.Kc1 Qd2) 23...Qd2 24.Kb1 Qd1 (24...Be4 25.Qd3 Bd3) 25.Bc1 Be4 26.Kb2 (26.Qd3 Qd3 27.Kb2 Qc3) 26…Qc2 0–1. orangutanb4 (2075) – atlas51 (1790), kurnik, 2011.

12.Kd1! Nf4?! 13.Bc4 += (idea Rg1).

12.Kd1 Nf4 13.Rg1!? Ne6+–.

12.Kd1 Nf4 13.Rg1 g6 14.Ng5 Be6 15.Ne6 Ne6 16.Bc4+–.

12.Kd1 Nf4 13.Rg1 Ng6 14.Nc3 (14.Ng5 Qe7 15.Bc4+–) 14...Nd4?? (14...Be6 15.Qc2+–) 15.Qc4 (better 15.Qb4 Ne2 16.Ne2+–) 15...Ne2 16.Ne2 (16.Qb4 Ng1 17.Ng1 a5=; 16.Ke2?! Be7+–; 16.Qe2?! Bc5 17.Re1 Bf5+–) 16...Bf8 17.Kc2 (17.Ng5!? Qe7+–) 17...Bf5 18.d3 b5 19.Qd4 (19.Qb5 c5 20.Qc4 Rb8+–) 19...Qe7 20.Rae1 (20.Qf2 c5+–) 20...c5? (better 20...Rd8!? 21.Ng3 Qc5 22.Qc5 Bd3 (22...Bc5?? 23.Nf5 Bg1 24.Rg1+–) 23.Kc1 Bc5=+) 21.Qf2 (21.Qd5!? Qd7 22.Qd7 Bd7+–) 21...c4 22.Nc1 cd3 23.Nd3?? (better 23.Kd1!? Qb4 24.Nd4 Qa4 25.Ncb3+–) 23...Rc8 (23...Qc7!? 24.Kd2 Bd3 25.Kd3 Qc4 26.Kd2 Bb4 27.Kd1 Rc8–+ (27...Be1?! 28.Re1 Rd8 29.Nd4–+)) 24.Kd2= Qd6 (24...Bd3 25.Qd4 (25.Kd3?? Nf4 26.Kd2 Qb4 27.Ke3 Nd5 28.Ke2 Rc2 29.Kf1 Rf2 30.Kf2 Qb2 31.Kf1 Qa2–+) 25...Qc7 26.Qd3 (worse 26.Kd3 Qc2 27.Ke3 Re8 28.Ne5 Bc5 29.Qc5 Qc5 30.Kf3 Qd5 31.Kf2 Ne5 32.Be5 Re5 33.Re5 Qe5–+) 26...Bb4 27.Kd1 Be1 28.Re1= (worse 28.Ke1 Qc2 29.Qc2 Rc2–/+)) 25.Qd4 (25.Nd4 Bd3 26.Kd3 Ne5 27.Re5 Qe5+=) 25...Qa6 (better 25...Qc6 26.Ke3 Qe6 27.Kd2 Qc6=) 26.Nh4?? (better 26.Rg5 Bd3 27.Kd3 b4 28.Ke3 Qa2 29.Re2+=) 26...Bd3 27.Ng6 (better 27.Kd3 b4 28.Kd2–+) 27...hg6?? (27...Bg6 28.Rc1 Qa5 29.Ke2 Rd8–+) 28.Qd3 (28.Kd3 Qa2 29.Rc1 Qb3 30.Ke2 Re8 31.Kf2=) 28...Qa2 29.Ra1?? (better 29.Rb1+=) 29...Qb2–+ 30.Ke3 Bc5 31.Kf3 Bg1 32.Rg1 Qe5 (better 32...Rc3 33.Rd1 Rd3 34.Rd3 Qh2 35.Rd8 Kh7–+) 33.Qe4 (33.Kg2–+) 33...Rc3 34.Kf2 (34.Ke2 Qe4 35.Kf1 Rf3 36.Kg2 Re3 37.Kf2 Qf3) 34...Qe4 35.Rg3 (35.Re1 Rc2 36.Re2 Re2 37.Kg3 Qg2 38.Kf4 Re4) 35...Rc2 36.Kf1 Qe2 37.Kg1 Qe1 (37...Qd1) 0–1. marvis (1680) – ffmm (1845), kurnik, 2012.

12.Kd1! Bf5?! 13.Bc4 +=.

12.Kd1! Qf8? 13.Rg1! –+.

12.Kf1 Nf4 13.Rg1 Bh3 14.Ke1 Qe7? 15.Rg7+– Kf8 16.Ng1 Bc5?? (better is 16...Ne2 17.Ne2 Bf5+–) 17.Rh7 Nd4 18.Qc4 Nfe2 (18...Kg8 19.Bd4 (19.Nh3?! Nfe2 20.Rh5 Nc3 21.Kf1 Qf6 22.Nf2 Ne4 23.Bd4 Bd4+/–) 19...Bd4 20.Qd4 (20.Nh3?! Kh7 21.Nf4 Ba1+=; 20.Rh3 Ne2 21.Ne2 Re8+–) 20...Kh7 21.Qf4+–) 19.Ne2 (19.Nh3?! Kg8 20.Rh5 Nc3 21.Kf1 Qf6 22.Nf2 Ne4 23.Bd4 Bd4+/–; 19.Rh3 Ng1 20.Kd1 Nh3 21.Bd4 Nf2 22.Bf2 Bf2–/+) 19...Bg4 (19...Qe2 20.Qe2 Ne2 21.Rh3+–) 20.Rh8 Kg7 21.Ra8 (21.Ra8 Qh4 22.Kd1+–) 1–0. pierred (2765) – juditfan (2330), net–chess.com, 2014.

12.Kf1 Nf4 13.Rg1 Bh3 14.Ke1 Ng2?? 15.Kd1+– Bc5 16.Qc3 f6?? (better 16...Qf8 17.Ba3 Ba3 18.Na3 Nf4+–) 17.Qc5 Qd7 18.Nc3 Rd8 (18...Nd8 19.Qd5 Qf7 20.Qf7 Kf7 21.Bc4 Ne6 22.Nb5+–) 19.Ne4 Qd5 (19...h6 20.Bf6! b6+–) 20.Nf6! gf6 21.Bc4 (21.Bc4 Qc4 22.Qc4 Kf8 23.Ba3 Ne7 24.Qc7+–) 1–0. pierred (2765) – gerotnik (2320), net–chess.com, 2014.

12.Kf1 Nf4 13.Rg1 Bh3 14.Ke1 g6 15.Qc4 Qd6=.

12.Kf2 Be6 13.Qc2 Nf4 14.Rd1 (14.Bb5 Bd5 15.Qf5 Bc5 16.Kg3 Ng6 17.Bc6 Bf3=+; 14.a3 Be7 15.Ke1 Bh4 16.Kd1 Ne2 17.Ke2 Qd5=+) 14...Ba5 15.d4 Ne2 16.Qe2 Bb6 17.Qd2 Qd5+=.

12.Kf2 Be6 13.Bc4 Nf4 14.Be6 fe6 15.Ke3 Qd6 16.Rf1 Bc5 17.d4 Nd4=.

12.Kf2 Be6 13.Qd3 Qd3 14.Bd3 Nf4 15.Bf1 Rd8 16.Nc3 Bc5 17.Kg3 (better 17.d4!? Bd4 18.Nd4 Rd4 19.Rd1 Rd1 20.Nd1 Ba2 21.Rg1+–) 17...Nh5= 18.Kg2 Nf4 19.Kg3 Nh5 20.Kg2 Nf4 21.Kg3 ½–½. brother – atlas51 (1675), kurnik, 2011.

12.Kf2 Qe7 13.Nc3 (13.Rg1 Bh3 (13...Bc5 14.d4 Nf4 15.Re1 Bb4 16.Bc3 Nh3 17.Kg2 Nf4+–) 14.Bc4 Na5 15.Bf7 Kh8 16.Qd5 Bc5 17.Bd4 Bd4+=; 13.Bc4 Nf4 14.Re1 (14.Rc1 Na5 15.Qe3 Nc4 16.Rc4 Bc5 17.Bd4 Bd4+–; 14.a3 Bc5 15.d4 Nh3 16.Kf1 Bb6 17.Nbd2 Na5+–) 14...Bc5 15.d4 Be6 16.Be6 Bb4 17.Re4 Ne6+–) 13...Bh3? (better 13...Be6 14.Qc2 (14.Qd1 Nf4 15.Rf1 Rd8 16.Rc1 Bc5 17.Kg3 Nd4=+; 14.Qa4 Nf4+– 15.Bb5 Qc5 16.Kg3 Nh5 17.Kg2 Nf4=) 14...Nf4 15.Qe4 Ne2 16.Ne2 Re8 17.Nf4 Qc5+–; 13...Nf4 14.Qc4 Bc5 15.Ke1 Ne2 16.Ne2 Be6 17.Qc3 f6+–) 14.Nd5+– Qe6 (14...Qe4 15.Nb4 Nb4 16.Qc3+–) 15.Nb4 Qb3 16.ab3 Nb4 17.Kg3 Nd5 (17...Be6 18.Kg2 Bb3 19.Rhc1+–) 18.Bf1 Ndf4 19.Bg2 (better 19.Ng5!? Bd7 20.Bg2 Ng2 21.Kg2 f6+–) 19...Bg2 20.Kf4 Bh1 21.Rh1 (21.Rh1 f6 22.Re1+–) 1–0. Franke,Roland – Kabisch,Guenter, corr DDR–ch M782, 1985.

12.Kd1 Be6

13.Qa4 Bf5. Dopper.

13.Qc2?? Ne3–+ 14.Kc1 Nc2 15.Kc2 a6 16.Rg1 g6 0–1. beciab70 – zenegblues (1765), kurnik, 2013.

13.Bc4?? Bc4–+ 14.Qc4 (14.Qa4 Qd3 15.Kc1–+) 14…Ne3 (14...Ne3 15.Kc1 Nc4–+) 0–1. carocan (1710) – misho5 (1710), kurnik, 2011.

13.Qd3 Bc5 14.Qc3 White gets in control 14...Qf8 15.Ba3 (15.Ng5 Rd8 (15...Ne3 16.de3 Qd8 17.Nd2 Qg5 18.h4 Qf6 19.Qf6+–) 16.Ne6 fe6 17.Qg3 Ne3 18.Kc1 Bd4 19.Nc3+–; 15.Rf1 Rd8 16.Ba3 Ne3 17.Qe3 Be3 18.Bf8 Kf8 19.Bb5+–) 15...Ba3 16.Na3 Nf4 17.Nc2 (17.Rg1 Rd8 18.Rb1 Ne2 19.Ke2+–) 17...Ne2 (17...Re8 18.Bb5 Nd5 19.Qb2+–) 18.Ke2 Bd5 19.Ne3 Re8 20.Rag1 f6 21.Rg3 Ba2 22.Rhg1 g6 23.h4 Qd6 24.h5 Bf7 25.hg6 hg6 26.Rg6 Bg6 27.Rg6 Kf7 28.Rh6 Kg7 29.Kf2 Ne7 30.Rh4 a6 31.Rd4 Qc6 (31...Qb6!?+–) 32.Rc4+– Qb6 33.Rc7 Kf8 34.Rb7 Qb7 35.Qf6 Kg8 36.Ng5?? (better 36.Ng4 Nf5 37.Qf5 Qb6 38.d4+–) 36…Rf8–+ (36...Rf8 37.Qf8 Kf8 38.Ne6 Ke8–+) 0–1. Torassa,Giuseppe – Gross,Heinrich, corr ICCF EU–ch GT269, 1987.

13.Qd3 Qe8 14.Ng5+– f5 15.Qh3 Ne3 16.Qe3+– (16.de3?! Qd8 17.Bd4 Qg5+–).

13.Qd3 Qe8 14.Ng5+– g6?? 15.Qe4 Ba2 16.Ra2 Qe4 17.Ne4 Nf4+–.

13.Qd3 Qe8?? 14.Ng5+– g6 15.Ne6 fe6 16.Qg3 (16.Qe4 Qd7 17.Qg2 Nd4+–) 16...Nd4 (16...Qd7 17.Qg2 Nd4 18.Bd3+–) 17.Bd4 Rd8 (17...Qc6 18.Rf1 Bd6 19.Qg4 Qa4 20.Kc1+–) 18.Qe5 (18.Qe5 Rd4 19.Bb5+– (19.Qd4?! Qa4 20.Kc1 Ba3 21.Na3 Qd4=); better 18.Bg1 Qa4 19.Qb3 Qb3 20.ab3+–) 1–0. Dopper,Johan – Grehl,Siegfried, corr SOK–92–78, 1992.

13.Qd3 Qe8 14.Ng5+– g6?? 15.Ne6 Qe6 16.Qg3 Qd5+–.

13.Qd3 Qe8?? 14.Ng5+– g6 15.Ne6 Qe6 16.Qg3 Qe4 17.Rg1+–.

13.Qd3 Bf5 14.Qd8+– Rd8 15.Rg1 Ne3 (15...Bb1 16.Rb1 Ne3 17.Ke1+–) 16.Kc1 Nc2 17.Rg7 Kf8 18.Ng5 Bg6? (18...Rd7 19.Bg4 Bg4 20.Nh7 Ke7 21.Kc2 Bf5 22.Kc1 Bb1 23.Rb1 Bd2 24.Kc2 Nb4 25.Kb3 Rd3 26.Kc4 b5 27.Kb5 a6 28.Kc4 Rf3+–) 19.Rg6! (19.Rg6 hg6 20.Kc2+–) 1–0. Dopper,Johan – Schut,Th, corr, 1988.

13.Qd3 Bc4 14.Qd8 Rd8 15.Bc4 Ne3

16.Kc1 Nc4 17.Bc3 Rd3 18.Bb4 (18.Rf1 Bc3 19.Nc3 Nd2 20.Nd2 Rc3 21.Kb2 Rh3+–) 18...Rf3 19.Bc3 Rf2 (19...b5 20.Re1 Kf8 21.Re4+–) 20.Re1 (20.Kc2 a6+–) 20...Kf8 21.h3 Rh2 (21...f5 22.a4 Nb6 23.Ra3+–) 22.Re4 Nd6 23.Rh4 h6 24.Na3 a6 (24...b5 25.Nc2 Nf5 26.Rf4+–) 25.Nc2 Nf5 26.Rf4 Nd6 27.h4 Kg8 (27...f5 28.Nd4 Nd4 29.Rd4+–) 28.Ne3 Ne7 (28...Nb5 29.Kb2+–) 29.Bb4 (29.Be5 f6 30.Bd6 cd6+–) 29...Ng6 (29...g5 30.Rf6 Rh4 31.Bd6 cd6 32.Kc2+–) 30.Bd6 1–0. Dopper,Johan – Landgraf,Manfred, corr ICCF TT, 1990.

16.Ke2 Nc4 17.Bc3 Re8 18.Kd3 Nb6 19.Re1 Rd8 20.Kc2 f6 21.d4 g5 22.Bb4 Nb4 23.Kc3 Nc6 24.Na3 g4 25.Rg1 h5 26.Rad1 Nd5 27.Kb2 Kf7 (27...Nf4 28.Nh4 Rd4 29.Rd4 Nd4 30.Rf1+–) 28.Nh4+– Nce7 29.Rde1 f5 30.Re5 f4 31.Rh5 Nf6 32.Re5 f3 33.Nc2 Ned5 (33...Nc6 34.Rb5 b6 35.Rg5+–) 34.Rf5+– Ke6 35.Re1 Kf7 36.h3! Rh8 (36...gh3 37.Rf3 Deflection) 37.Nf3! gf3 38.Rf3 Rh4 39.a3 c6 40.Kb3 a5 41.Kc4 b6 42.a4 Rf4 43.Rf4 Nf4 44.Ne3 Kg6 (44...Nh3 45.d5 Nd5 46.Nd5 cd5 47.Kd5+–) 45.Ng4 Ng4 46.hg4 Kf6 47.Re5 Ne6 48.Rf5 Kg6 49.d5 cd5 1–0. albatroz – pierre, ChessHere.com, 2005.

13.Qd3 Qd3

14.Bd3 Bd5 15.Be2 Nf4 16.Nc3?? (better is 16.Rg1 Ne2 17.Ke2 Re8 18.Kf2 Bc5 19.d4+=) 16...Bc3–+ 17.Bc3 Re8 18.Rf1 Ne2 19.Rf2 Nc3 20.dc3 Re3 21.Ne1 (21.Nd4 Nd4 22.cd4 Re4–+) 21...Rc3 22.Rb1 Nd4 23.Rd2 c5 24.Rd3 (24.Rc1 Rc1 25.Kc1 Be4–+) 24...Rd3 25.Nd3 b6 (better is 25...Be4!? 26.Kd2 c4 27.Ke3 Bd3 28.Rb7 Nf5 29.Kd2–+) 26.Nc5 Ba2 27.Rb2 Bd5 28.Kd2 g5 (28...f5 29.Na6–+) 29.Nd7 (29.Ne4 Be4 30.Ke3 Bb7 31.Kd4 f5–+) 29...Kg7 30.Kd3 Ne6 31.Rb1 Bc6 32.Ne5 Be8 33.Ra1 a5 34.Ke4 (34.Nc4 Bb5–+) 34...f6 (better is 34...a4!? 35.Kd5–+) 35.Nc4 Nc5 Black plans a4 36.Ke3 Nb3 (36...f5 37.Rb1 b5 38.Na5–+) 37.Rb1 (37.Ra3 Bf7 38.Nb6 f5–+) 37...a4 38.Nb6 h5 39.Rb2 f5 40.Ra2 f4 41.Ke4 Kf6 42.Nd5 Kg6 43.h4 (43.Nb6 Bc6 44.Ke5 f3 45.Na4 f2 46.Rf2 Ba4 47.Rf6 Kg7–/+) 43...Nc5?? (better is 43...Bc6–+) 44.Kd4–/+ Ne6 45.Ke5 Nc5 46.hg5?? (46.Kd4 Nb7 47.Rg2–/+) 46...f3–+ (46...Kg5 47.Rg2 Kh6 48.Nf4 Nd7 49.Ke6 Nf8 50.Kf6=) 47.Kd4 Ne6 48.Ke3 Kg5 (48...Ng5 49.Nc3–+) 49.Nc3 Kg4 50.Na4 Kg3 51.Nc3 Bc6 52.Ne4?? (better is 52.Ra5 h4 53.Re5–/+) 52...Be4 53.Ke4 f2 54.Ra1 Kg2 55.Kf5 (55.Ra2 Kg1 56.Ra1 f1Q 57.Rf1 Kf1–+) 55...Ng7 (55...Ng7 56.Kg5 f1Q 57.Rf1 Kf1–+) 0–1. Deveque,Guillaume (1880) – Henris,Luc (2145), 7th LUCOPEN, 2016.

14.Bd3 Rd8

15.Kc2 Bd5 16.Rf1?? (better 16.Ng5 Be7 17.Bh7 Kh8 18.h4 Nb4 19.Kc1=) 16...Bf3–+ 17.Rf3? (17.Bc4 Be4 18.Kc1–+) 17...Ne1 18.Kb3 Nf3 (18...Nd3?! 19.Rh3–+; 18...Rd3?! 19.Rd3 Nd3 20.Nc3–+) 19.Nc3 (19.Be4 Nd2 20.Nd2 Rd2 21.Bc6 bc6 22.Rg1–+) 19…Rd3 0–1. carocan (1680) – misho5 (1740), kurnik, 2011.

15.Be4 Bf5 16.Ng5 Be4 +/–.

14.Bd3 Bg4 15.Be2 Nf4

16.Rf1 a6 A) 17.Bc4 b5 (17...Na5 18.Bb3 Re8 19.Bc3 Nb3 20.ab3 Bd6 21.Ra5=; 17...Re8 18.Kc2 Bf5 19.Kc1 b5 20.Nh4 Nd3 21.Bd3+=; 17...Bd6; 17...Rd8) 18.Bb3 Re8 19.a4 Na5 20.Ba2 ba4 21.Kc2–/+; B) 17.Rg1 h5 18.Rf1 Ne2 19.Ke2 Bd6 20.h4 Re8 21.Kd3=; C) 17.a4 Rd8 (17...Re8 18.Bc4 Re4 19.Bb3 Bd6 20.Bc2 Re6 21.Na3=; 17...Ne2; 17...Bd6) 18.Rg1 h5 19.Rf1 Na5 20.Bc3 c5 21.Bb4=+; D) 17.a3 Ne2 (17...Bd6 18.h4 Re8 19.Nc3 Be7 20.Rb1 Bh4 21.Rg1+=) 18.Ke2 Bc5 19.Kd3 Rd8 20.Kc2 Bf5 21.Kd1=.

16.Rf1 Bc5 17.Bb5 (17.h4 Ne2 18.Ke2 Bd4 19.Bc3 Re8 20.Kd3 Bf3 21.Rf3=+; 17.Ng1 Ne2 18.Ne2 Re8 19.Nbc3 Bb4 20.Rg1 Bc3 21.Rg4–/+) 17...Nd4 18.Bd4 Bd4 19.Nc3 a6 20.Bc4 b5 21.Bb3=.

16.Rf1 Bd6 A) 17.Bb5 Ne5 (17...Nb4 18.Bc4 Nbd3 19.Kc2 Nb2 20.Kb2 b5 21.Bb3=) 18.Be5 Be5 19.h3 Ba1 20.hg4 h6 21.Nc3=; B) 17.Bc4 Rd8 (17...Na5 18.Bb3 Nd3 19.Kc2 Nb3 20.ab3 Nb4 21.Kc3+=; 17...a6 18.a4 Re8 19.Kc2 Na5 20.Ba2 Nc6 21.Bc3+=; 17...Rf8 18.d4 Na5 19.Bb3 Ng2 20.Kc1 Nb3 21.ab3+–; 17...Ne5 18.Be5 Be5 19.Nc3 Rd8 20.Kc1 Bf3 21.Rf3+–; 17...Rb8 18.d4 Ng2 19.Ke2 Bf4 20.Nbd2 Ne3 21.Rg1+–) 18.Kc1 Nb4 19.Nc3 Nbd3 20.Kc2 Bf5 21.Nd4=; C) 17.h4; D) 17.Nc3 Ne2 18.Ne2 Re8 19.Ng3 Nb4 20.Bc3 Nd3 21.Kc2+–.

16.Rf1 Rd8 A) 17.a4 h5 (17...Ne2 18.Ke2 Bd6 19.Rg1 Re8 20.Kf2 Re4 21.h3+=; 17...Bd6 18.Bb5 Nb4 19.Bd4 Be6 20.Na3 Bb3 21.Kc1+=; 17...a6 18.Rg1 h5 19.Rf1 Na5 20.Bc3 c5 21.Bb4=+; 17...g5 18.Bb5 Nd4 19.Bd4 Rd4 20.Kc2 Bf3 21.Rf3+=; 17...a5 18.Bb5 Nd3 19.Kc2 Bf5 20.h4 Nc5 21.Kd1+=; 17...f6 18.Bc4 Kf8 19.Kc1 Bh3 20.Re1 Bg2 21.Re4+=; 17...Kf8 18.h4 Be7 19.Nc3 Ne2 20.Ne2 Bf3 21.Rf3+=; 17...h6 18.Rg1 h5 19.Rf1 Ne2 20.Ke2 Bd6 21.Kf2=) 18.Nd4 Ne2 19.Ne2 Re8 20.Re1 Bd6 21.Nbc3–/+; B) 17.Rg1 f5 (17...h5 18.Rf1 Bc5 19.Nc3 Bh3 20.Ne4 Bf1 21.Bf1=) 18.a3 Ne2 19.Ke2 Bc5 20.Rg3 Re8 21.Kf1=+; C) 17.a3 Bc5 (17...Bd6 18.Bc4 a6 19.a4 Na5 20.Ba2 Nc6 21.d4=; 17...Ne2 18.Ke2 Bc5 19.Bc3 Bd4 20.Ra2 Ne5 21.Bd4=; 17...Ba5 18.Bb5 Bb6 19.Bc6 bc6 20.d4 c5 21.Kd2=; 17...Be7 18.Bb5 Ng2 19.Kc1 Na5 20.Ba4 Nc4 21.Bc3+–) 18.Ng1 Ne2 19.Ne2 Re8 20.Nbc3 Nd4 21.Rg1–/+; D) 17.Bb5 Nd4 18.Bd4 Rd4 19.Kc2 Bf3 20.Rf3 c6 21.Bf1+–.

16.Rf1 Ne2 17.Ke2 Bc5 18.Kd1 Bd6 19.h4 Be7 20.Kc2 (20.Kc1 Bf3 21.Rf3+=.

16.Rf1 Ne2 17.Ke2 Bc5 18.Kd3 Nb4 21.Kc3+=; 18.a3 Bd4 19.Bc3 Re8 20.Kd3 Bf3 21.Rf3=+) 18...Rd8 19.Kc3 b5 (19...Rd5 20.h4 Rf5 (20...Be7 21.d4=) 21.Nh2–+; 19...Bf5 20.Ba3 Bd3 21.Rc1+=) 20.a4 b4 21.Kc2 (21.Kc4=) 21...Bf5 22.Kc1 (better 22.Kd1!?=+) 22...Bd3–/+ 23.Re1 f6 (better 23...Na5!? 24.Be5 Nb3 25.Kb2 Na1 26.Ka1 Re8–/+) 24.a5= Kf7 25.Rh1 Rd5 26.Ne1 Be2 27.Nc2 Bd6 28.Re1 Bd3 29.Re3 Bg6 30.Kd1 Na5 31.Rh3 Nc4 32.Bc1 a5 33.Rb3 c5 ½–½. Dziel,Jaromir – Szimmat,Klaus, corr ICCF EU–M–GT–419 (year?).

16.Rf1 Ne2 17.Ke2 Bc5 18.Kd3 Rd8 19.Kc4 Bh3 (19...Be6 20.Kc5 Rd5 21.Kc4 Re5 22.Kc3 Rc5 23.Kd3 Bc4 24.Ke3 Bf1 25.Na3=) 20.Na3 (20.Re1!? Bf2 21.Re4+=) 20...Bf1= 21.Rf1 (worse 21.Kc5 Bg2 22.Nd4 Ne5–+) 21...Bd6 22.Rg1 Na5 23.Kc3 f6 24.Nc4 Nc4 25.Kc4 b5 26.Kb3 Kf7 27.Rf1 c5 28.Kc2 ½–½. Hering,Hartmut – Girard,Eric (2400), DJ–CT18/pr53, 2011.

16.Rf1 Ne2 17.Ke2 Bd6 18.Kf2 (18.Rg1 Be5 19.Be5 Ne5 20.Rg4 Ng4 21.Nc3=) 18...Nb4 19.Rg1 f5 20.Bc3 Nd3 21.Ke3+=.

16.Rf1 Ne2 17.Ke2 Re8 18.Kf2 Bd6 19.Rg1 Re4 20.Ba3 Rf4 21.Bd6=.

16.Rf1 Ne2 17.Ke2 f5 18.a3 Bd6 19.Kf2 Re8 20.d4 Bf3 21.Kf3+=.

16.Rf1 Ne2 17.Ke2 f6 18.h4 Re8 19.Kf2 Re4 20.a3 Bc5 21.d4+=.

16.Rf1 Ne2 17.Ke2 h5 18.Kf2 Re8 19.Bc3 Bd6 20.d4 b5 21.Nbd2+–.

16.Rg1 f5 17.Bc4 Kf8 18.Rf1 Na5 19.Ba3 Nc4 20.Bb4+–.

16.Rg1 h5 17.Nd4 Ne2 (17...Bc5) 18.Ne2 Re8 19.Re1 Bd6 (19...h4) 20.d4 Bh2 21.Kd2–/+.

16.Rg1 h5 17.Rf1 a6 18.Bc4 Re8 19.Kc2 Bf5 20.Kc1 b5 21.Nh4+=.

16.Rg1 h5 17.Rf1 Rd8 18.Bb5 Nd4 19.Bd4 Rd4 20.Kc2 Bf3 21.Rf3+–.

16.Rg1 h5 17.Rf1 Ne2 18.Ke2 Bc5 (18...Bd6 19.h4 Re8 20.Kd3=) 19.Kd3 (19.Kd1 Bh3 (19...Bd6 20.Kc2+=) 20.Re1=) 19...Rd8 20.Kc4 (20.Kc3+=) 20...Be6 21.Kc5 Rd5 22.Kc4 Re5 23.Kc3 Rc5 24.Kd3 Bc4 25.Ke3 Bf1 26.Nc3 Bh3 27.Rg1 Bg4 28.h3 Bf3 (worse 28...Bh3 29.Ne4 Rc2 30.Rg7 Kf8 31.Nfg5 Rb2 32.Rf7 Ke8 33.Nf6 Kd8 34.Nh3+–) 29.Kf3 Ne5 30.Ke2 Ng6 31.d4 Rf5 32.Rf1 Rf4 33.Nb5 c6 34.Nd6 b5 35.Nf5 Rf1 36.Kf1 f6 37.Bc3 Kf7 38.Bb4 Nf4 39.Ne7 a5 40.Bc5 Nh3 41.Nc6 Ke6 42.Na5 Kd5 43.Nb7 Nf4 44.Nd6 Nd3 45.Nb5 Nc5 46.dc5 Kc5 47.Na3 ½–½. Cetwinski,Olgierd (2210) – Dziel,Jaromir (2160), corr Poland–ch42/43 sf3, 1998.

16.Rg1 h5 17.Rf1 Ne2 18.Ke2 Bd6 19.Kd3 Rd8 20.Kc2 Nb4 21.Kc3+=.

13.Qd3 Qe7

14.Nc3 Rd8 15.Qe4 f6. Dopper.

14.Nd4 Nf4 15.Nc6+– Qc5?? (better 15...bc6 16.Qg3 Bb3 17.ab3 Qe2 18.Kc1 Nd3 19.Kc2 Nb2+–) 16.Qg3 Ng6 17.Nb4 Qb4 18.Qc3 Qa4 (18...Qc3 19.Nc3 Re8 20.Nb5+–) 19.Kc1 f6 20.Rg1 (20.Re1 c6+–) 20...Rf8 21.Na3 (21.Qg3 c5+–) 21...Kh8 (21...Nf4 22.Bb5 Qe4 23.Qc7+–) 22.Nc4 (22.Re1 c6+–) 22...Nf4 23.Bf1 Bf5 (23...Qc6 24.Qg3 Ng6 25.d3+–) 24.Ne3 Bg6 (24...Be6 25.Qc7 Rc8 26.Rg7 Qc6 27.Qc6 Rc6 28.Bc3 Kg7 29.Rb1+–) 25.Qc4 (25.Qc7!? b6+–) 25...Qc4 26.Bc4 (26.Bc4 Rd8 27.Kd1+–) 1–0. Rush,Bradley – Chaney,Ronald L, IECG, 1996.

14.Nd4 Nf4 15.Nc6 bc6 16.Qd4 Bb3 (16...Qg5 17.Rg1 Ng2 18.h4 Qg3 19.Nc3 Bf5 20.Ne4 Ne3 21.Qe3 Qe3+–) 17.ab3 Qe2 18.Kc2 (18.Kc2 Qg4 A) 19.Qb4?! Qg6 (19...Qf5 20.Kd1 Qh5 21.Kc2 Qf5 22.Kd1 Qh5 23.Kc2 Qf5=) 20.Kd1 Qh5 21.Kc2 Qg6=; B) 19.Rg1 Qf5 20.d3+– f6 21.Rf1 Bd6+–) 1–0. Lapshun,Yury (2430) – Sinn,Robert M (2160), 31st World Open, Philadelphia USA, 2003.

14.Nd4 Nf4 15.Nc6+– bc6 16.Qg3 Bb3 17.ab3 Qe2 18.Kc1 Nd3 19.Kc2 Nb2 +–.

14.Ne1 Ne1 15.Re1 (15.Qg3 f6 16.Re1 Bd6+–) 15...Bd6 (15...Rd8 16.Qg3 Nd4 17.Bc4+–) 16.Rg1 (16.Bf3 Rb8+–) 16...g6 (better 16...Ne5 17.Qe3 Ng6+–) 17.Ba3?? (better 17.Rg2+–) 17...Qf6–+ 18.Nc3 Ba3 19.Rb1? (19.Rf1 Bf5–+) 19...Rd8 (better 19...Bf5!? 20.Rf1 Bd3 21.Rf6 Bb1 22.Nb1–+) 20.Qf3?? (20.Ne4 Qe7 21.Qe3–+) 20…Qd4 (20...Qd4 21.d3 Qg1 22.Kd2 Qh2–+) 0–1. Juptner – Kasper, corr DDR–Cup, 1985.

14.Ne1 Nf4 15.Qg3 Ng6 16.Bf3+–.

14.Rg1 Nf4 15.Rg7 Kf8 16.Qh7+–. Grehl.

14.Rg1 Bh3 15.Ne1! Ne1 16.Rg7 Kf8 17.Qh7+–. Grehl.

14.Rg1+– Bh3? 15.Ng5!! Qg5 16.Qh3 Rd8 Threatening mate: Rxd2 17.Bd3 (better 17.Rg2!? Rd2 18.Kc1 Qc5 19.Nc3 Rd4+–) 17...Rd3? (better 17...g6 18.Rg2 Rd3 19.Qh7 Kh7 20.Rg5 Rh3+–) 18.Qd3 (18.Rg2?! Rh3 19.Rg5 g6+–) 18...Qg4 (18...Bc5 19.Rf1+–) 19.Kc1 Bc5 20.h3 Qe6 (20...Nf4 21.Qh7 (21.Rg4?! Nd3 22.Kc2 Ncb4 23.Kb3 Nb2 24.Kb2 f5+–; 21.hg4 Nd3 22.Kc2 Ncb4 23.Kc3 Bg1–/+) 21...Kh7 22.Rg4 Nd3 23.Kc2 Nb2 24.Kb2+–) 21.Qg3 (21.Rg2 Qe1 22.Kc2 Nb4 23.Kc3 Nd3 24.Kd3 Qf1 25.Re2 Qf3 26.Kc4 Qe2 27.Kc5 Qe6–+) 21...Qc4 22.Bc3 Nd4 23.Qg2 (23.Rg2?! Qf1 24.Kb2 Qb5 25.Bb4 Qb4 26.Kc1 Qc4 27.Qc3 Qf1 28.Kb2 Qb5 29.Kc1 Qf1 30.Kb2 Qb5 31.Kc1 Qf1=) 23...g6 (23...Ne2 24.Kd1 Nc3 25.Nc3 Bg1 26.Qg1 b6+–) 24.Qg4 (24.Re1 Qa4 25.Bd4 Bd4+–) 24...b5?? (24...f5 25.Qg2 Ne2 26.Kd1 Ng1 27.Qb7 Nh3 28.Qb8 (28.Qc7?? Nf2 29.Kc1 Nd3 30.Kd1 Qg4 31.Kc2 Qa4 32.Kd3 Qe4) 28...Bf8 29.Qa7+–) 25.Kd1 (better 25.Qc8 Kg7 26.Qc7 Ba3 27.Na3 Qc7 28.Nb5+–) 25...Qa4 (25...f5 26.Qg2 Qa4 27.Ke1 Nc2 28.Ke2 Qc4 29.Kd1 Na1 30.Qc6+– (30.Ba1?! Bg1 31.Qa8 Kf7+=)) 26.Ke1 f5 27.Qg2 Ne6?? (27...Nc2 28.Ke2 Qc4 29.Kd1 Na1+–) 28.Qd5 (28.Qa8 Kf7 29.d4 Bd4+–) 28...Kf7 (28...Qh4 29.Kd1 Qh5 30.Kc2+–) 29.Rg2 Bd6 30.Be5 (better 30.d3 Ke7 31.Rb2 Qh4 32.Kd1 Qh5 33.Kc2 Qe2 34.Nd2 a6+–) 30...Be7 (30...Be5 31.Qe5 Qd4 32.Qd4 Nd4 33.d3+–) 31.Nc3 Qh4 32.Kf1 (32.Kd1 a6 33.Bc7 Qc4+–) 32...Qh3 (32...b4 33.Nb5 Qh3 34.Nc7+–) 33.Re1 (better 33.Nb5!? f4 34.Kg1 Kf8+–) 33...Qh1 34.Kf2 (34.Kf2 Bh4 35.Bg3 Bg3 36.Rg3 (36.Kg3?! Qe1 37.Rf2 Qg1 38.Qg2 Qg2 39.Kg2 a6=) 36...Qd5 37.Nd5+–; 34.Ke2 Qh5 35.Kd3 Qh4+–) 1–0. Friberger,Torbjoern – Karle,Max, corr SSKK 2–774, 1992.

14.Bg7?? Bc5?? 15.Qc3 Nf4 16.Re1 Bf2 (16...Bb4 17.Qb2 Ne2 18.Bf6+– (worse 18.Re2 h5+–)) 17.Bh6 Threatening mate: Qg7 17...Nh5 18.Rf1 Bb6 (18...Bc5 19.d4 Rd8 20.Rg1 Kh8 21.Nbd2+–) 19.d4 Rd8 (19...Re8 20.Rg1 Kh8 21.d5 f6 22.dc6 Bb3 23.Kc1 Bg1 24.Ng1+–) 20.Be3 (20.Rg1 Kh8 21.Bg5 Nf6+–) 20...Nf6 21.Rg1 Kh8 22.Qa3 (22.Qd2 Bd5 23.Bh6 Rg8 24.Rg8 Ng8+–) 22...Bc5? (better 22...Qa3 23.Na3 Nd4 24.Nd4 Rd4 25.Kc1 Nd5+–) 23.Qc3= Bg4?? (23...Bb6 24.Bd3 Nd5+–) 24.Nbd2+– Bb6 (24...Nd5 25.Qc5 Qc5 26.dc5 Ne3 27.Kc1+–) 25.Bf2 (25.Rb1 Nd5 26.Qb3 Ne3 27.Kc1 Bd4 28.Rg4 Qc5 29.Bc4 Ng4 30.Qb7 Be3–+) 25...Bf3 26.Bf3 (26.Nf3 Ne4 27.Qe3 Nd4 28.Qd4 Bd4 (28...Rd4 29.Bd4 Bd4 30.Nd4+=) 29.Bd4 Qf6–+) 26...Nd4 27.Re1 Qd7 (27...Ne6 28.Bb6 cb6 29.Bb7+–) 28.Bh4 (28.Bb7!? Qa4 29.Kc1 Nd5 30.Bd5 Rd5+–) 28...Qa4 29.Kc1 Nb3 (29...Nd5 30.Bd5 Rd5 31.Bf6 Kg8 32.Qg3 Rg5 33.Qg5 Kf8 34.Qg7) 30.Nb3 (30.Qb3?! Qh4 31.Re2 Bd4+–) 30...Qh4 31.Bb7 Bd4 32.Nd4 Rd4 33.Ba6 (33.Rb1 Rc4 34.Qc4 Qc4 35.Kb2 Qd4 36.Kc2 Qf2 37.Kb3 Qh2–+) 33...Qf4 34.Kb1 Qd6 (34...Qd2 35.Qd2 Rd2 36.Re7+–) 35.a3 c5 36.Bb5 (36.Bc4 Qb8 37.Qb3 Qb3 38.Bb3 c4+–) 36...Qb6 37.Qb2 Nd5 (37...c4 38.Be8 Qb2 39.Kb2+–) 38.Re8 Kg7 39.Qg2 (39.Ka2 Nb4 40.ab4 Qb5 41.Rg1 Kh6 42.Qc1 Rd2 43.Qd2 Kh5 44.Qg5) 39...Kf6 (39...Qg6 40.Qg6 hg6 41.Kc2+–) 40.a4 (40.Qf2 Kg7 41.Qg1 Kf6+=) 40...c4 (40...Ra4 41.Qb2 Rd4 42.Ra6+–) 41.Kc2 Nb4 42.Kb2 The mate threat is Rf1 42...Nd3 (42...Rf4 43.Ka3 Qd4 44.Rc1 Qd3 45.Kb4 Qd6 46.Kc3 Qd4 47.Kc2 Rf2 48.Qf2 Qf2 49.Kc3 Qf3 50.Kb4 Qb3 51.Ka5+–) 43.Kc3 Rf4 44.Re4 Qa5 45.Kc4 Qb4 (45...Re4 46.Qe4 (46.Kd3 Qd8 47.Kc2 Qc7 48.Kd1 Rd4 49.Ke2 Qe5 50.Kf1 Rf4 51.Kg1 Qa1 52.Bf1 Qa4 53.Qb2 Qd4 54.Qd4 Rd4–+) 46...Qb4 47.Kd3 Qb3 48.Kd4 Qb2 49.Kc4 Qa1 50.Qh7 Qa2 51.Kc3 Qa3 52.Kd2 Qb4 53.Ke2 Qg4 54.Kd3 Qd1 55.Kc4 Qe2 56.Kc3 Qe1 57.Kc2 Qf2 58.Kb3 Qe3 59.Qd3+–) 46.Kd3 Qb3 (46...Re4 47.Qe4 Qb3 48.Kd4 Qb2 49.Kc4 Qa1 50.Qh7 Qc1 51.Kb3 Qd1 52.Qc2 Qc2 53.Kc2+–) 47.Kd4 Qb4 48.Kd5 (48.Ke3!? Re4 49.Qe4 Qc3 50.Kf4 Qa1 51.Qc6 Kg7 52.Qg2 Kf8 53.Qa8 Kg7 54.Qa7 Qf6 55.Kg4 Qe6 56.Kh4 Qf6 57.Kg3 Qd6 58.Kf3 Qd5 59.Kf2 Qf5 60.Ke2 Qg4 61.Kd2 Qf4 62.Kd3 Qh2 63.Qd4 Kg6+–) 48...Rf5 49.Kc6 Qc3 50.Kb7 (50.Rc4 Qa1 51.Qh3 Re5+–) 50...Qa1 51.Rc4 (51.Qh3 h5+–) 51...Re5 (51...a5 52.Rc6 Ke7 53.Qe4 Qe5 54.Qh4 Rg5 55.Rc7 Kf6 56.Bc4+– (worse 56.Qh7 Qe6+–)) 52.Qf3 Kg7 53.Qg3 (53.Rc7 Qa2 54.Qg3 Kf6 55.Qf4 Rf5 56.Rc6 Qe6 57.Qd4 Re5 58.Re6 fe6 59.a5+–) 53...Kf6 54.Qh4 Ke6 55.Qh6 (better 55.Rc6!? Kd7 56.Rf6 Rb5 57.ab5 Ke8+–) 55...f6 56.Qh3 f5 (56...Rf5 57.Rc6 Kd5 58.Qf5 Qe5 59.Bc4 Kd4 60.Qd3) 57.Rc6 Kd5 (57...Kd7 58.Qh7 Re7 59.Rc7 Ke6 60.Qe7 Kd5 61.Rd7) 58.Qd3 (58.Qd3 Qd4 59.Bc4) 1–0. Hartmann,A – Barczyk,J, corr DDR, 1990.

14.Bg7 Rd8 15.Bd4 Nd4 16.Nd4 Qh4+–.

14.Bg7?? Kg7 15.Rg1 Bh3=.

14.Nd4 Nd4

15.Qd4 f6 16.Bc4 Bc4? 17.Qc4 Kh8 18.Rg1 Ne3 19.de3 Qe3 20.Rg2 (20.Qb4?! Qg1 21.Kc2 Qh2 22.Nd2 b6+–) 20...Rd8 21.Kc2 (21.Kc2 Qf3 22.Re2+– (22.Qb4?? Qd3 23.Kc1 Qd1)) 1–0. Muri,Heinrich – Van der Kooij,Jaap, corr ICCF EU M, 1989.

15.Qd4 f6 16.Bc4 Bc4? 17.Qc4 Kh8 18.Rg1 Ne3 19.de3 Qe3 20.Rg2 (20.Qb4?! Qg1 21.Kc2 Qh2 22.Nd2 Rd8+–) 20...Qf3 21.Re2 Rd8 22.Kc2 Qf5 23.Qe4 Qb5 (23...Qe4 24.Re4 Bd6 25.Re2+–) 24.Nc3 Bc3 25.Bc3 h6 26.a4 (26.a4 Qg5 27.Qb7 Qf5 28.Kb2+–) 1–0. forsetinn (1980) – beatroot (1765), gameknot.com, 2013.

15.Qd4 f6 16.Bc4 Bd6 +–.

15.Qd4 f6 16.Bf3 +–.

15.Bd4 Rd8 16.Bf1 Bg4 17.Kc1 Bc5 18.Bg2 Bd4 –/+ (18...Rd4?! 19.Qc3+=).

15.Bd4 Rd8 16.Bf3 Nh4–/+.

14.Nd4 Bd5

15.Nc6 Bc6+= 16.Qd4 f6 (16...Ne3 17.de3 Rd8 18.Rg1=) 17.Bc4 (17.a3!? Bc5 18.Qc4 Kh8 19.Rf1=) 17...Kh8=+ 18.Kc1 Rd8 (18...b5!? 19.Bd5 Rd8 20.Bc6 Rd4 21.Bd4 Qd6 22.Bg2 Qd4–+) 19.Qf2= (19.Qa7? Qe4 20.Bd4 Nf4–+) 19...Bc5 20.d4 Bd6 (20...Ne3 21.Re1 (21.dc5? Bh1 22.Be2 Qc5 23.Nc3 b5–+) 21...Rd4 A) 22.Bd4? Bd4 23.Nc3 A1) 23...Nc4?! 24.Re7 (24.Qd4? Qe1 25.Kc2 Qe6–+) 24...Bf2 25.Rc7=; A2) 23...Qc5–+; B) 22.Bb3=) 21.Nd2+= Bf4 22.Rg1 (better 22.Rd1+=) 22...Qb4–/+ 23.Bb3? (23.Bd3 Be3 24.Qf5 Qd2 25.Kb1 Qd3 26.Qd3 Bg1 27.Qa3 Bh2 28.Qa7–+) 23...Be3–+ 24.Rg2 Bf2 25.Rf2 Rd4 26.Kc2 Qc5 27.Kd1 (27.Bc3 b5 28.a3 a5–+) 27...Qh5 (better 27...Rd2 28.Rd2 Bf3 29.Re2 Qb5–+) 28.Kc2 Qg6 29.Kc1 Rg4 30.Bc3 a5! 31.Kb2 (31.Ba5 Qg5 Decoy) 31...a4 32.Be6 a3! 33.Ka3 Qc2 (better 33...Rg2 34.Rg2 Qg2–+) 34.Bg4= Qc3 35.Nb3 b5 36.Rf4 Bd5 37.Rc1 (37.Rd1!? c6 38.Rfd4=) 37...Qe3=+ 38.Rcf1 (better 38.Rc7 Qf4 39.Rc8 Bg8 40.Be6=+) 38...c5–+ 39.Kb2 c4 40.Nd4 (40.Bd1 cb3 41.Bb3 Bb3 42.ab3 Qd2 43.Ka3 Qh2 44.Kb4–+) 40...b4 (better 40...c3 41.Ka1 g5–+) 41.Nc2 Qc3 42.Kb1 b3 43.Nd4?? (better 43.ab3 cb3 44.Nb4–+) 43...g5 44.Rf6 0–1. Freienstein,F – Gass,U, Pichlarn, 1985.

15.Rf1 Ne5 16.Qg3+–.

15.Nf5 Qc5? 16.Rf1 Qa5 17.Ng7 Bd6 18.Nc3+–.

15.Nf5 Qc5? 16.Rf1 Rd8 17.Bg7 (17.Ng7?! Ba2 18.Qg3 Ne3 19.Ke1 Nc2 20.Kd1 Ne3 21.Ke1 Nc2 22.Kd1 Ne3=) 17...Bd2 (17...Ne7 18.Ne7 Kg7 19.Nf5 Kf8 20.a3+–) 18.Nd2 (18.Kd2 Be4 19.Qd8 Nd8–+) 18...Nb4 19.Nh6 (better 19.Qc3 Qc3 20.Bc3+–) 19...Kg7 20.Qg3 Kf8 21.Qg8 Ke7 22.Rf7! Bf7 23.Qf7 Kd6 24.Qf6 Kd7 25.Bg4 Qf5 26.Bf5 Ke8 White now must not overlook the idea Ne3 27.Qf7 1–0. Muri,Heinrich – Bjorn,J, corr ICCF EU–ch M, 1993.

15.Nf5 Qc5? 16.Rf1 g6 17.Nh6 Kf8 18.Nf7! Bf7 19.Qf3 (19.Qf3 Ne3 20.Qe3 Qe3 21.de3 Rd8 22.Kc2+–) 1–0. Hess,Helmut (2360) – Epinoux,Jean Francois (2020), EU/EM/M/023 ICCF Email, 2004.

15.Nf5 Qe4 16.Qe4 Be4+–.

15.Nf5 Qe4 16.Rf1 Qd3 17.Bd3 g6 18.Nh6 Kf8+–.

15.Nf5 Qc5? 16.Ng7 Nf4 17.Qg3 Ne2–/+.

14.Rg1! Rd8 15.Rg2! Rd3 16.Rg7 Kf8

17.Bd3 Ba2!? 18.Ra2?! (18.Bc2 unclear) 18...Qe6! =+ (idea Qb3). Gross.

17.Bd3 Ba2 18.Rh7 Bb3 19.Kc1 Qc5 20.Bc3+– Bd5 21.Rh8+–.

17.Bd3 Qd7 18.Ne1 (18.Be2 A) 18...Bg4 19.a3 Bd6+= (19...Bc5 20.Rg5 Be7 21.Rg4=) 20.Rg5 Be7 21.Rg4=; B) 18...Bd5 19.Ng5 Nd4 20.Bd4 Qa4 21.Ke1–/+) 18...h5 19.Kc1 (19.Rg2!?+– Bg4 20.Kc1 Nd4 21.Nc3+–; 19.Rg3 Bd6 20.Rg2 Bg4 21.Be2+=) 19...Ne5?? (better 19...Ba2 20.Ra2 (20.Rg3 h4 21.Bg7=) 20...Qe6= 21.Ra4=) 20.Be5+– 1–0. Gavrijski,Dimitar (2010) – Cottarelli,Franco (2185), corr ICCF WSTT/3/06/2, 2006.

17.Bd3 Bd5

18.Nd4? Qe5! –+ (idea Bf3). Analyse Grehl/Gross, 1992.

18.Ne1 Be4 19.Be4 (19.Rg3 Bd3 20.Bg7 Ke8 21.Nd3 Qh4 22.Re3 Kd7+–) 19...Qe4 20.Nc3 (20.Rg2 Nd4+–) 20...Bc3 21.Bc3 Nd4 (21...Qa4 22.Kc1 Qe4 23.Kb2+–) 22.Rg2 Ne6 (22...c5 23.d3 Qe5 24.Rb1+–) 23.Rc1 (23.d3 Qd5+–) 23...c5 (23...Nf4 24.Rf2+–) 24.d3 (24.Re2 Qg4 25.Ng2 Qa4 26.Ke1 b5+–) 24...Qa4 (better 24...Qd5+–) 25.Rgc2 (25.Rcc2 Ke7+–) 25...b5 (better 25...Qg4!? 26.Kd2 Qh4=) 26.Be5 (26.Ng2 Qg4 27.Re2 Qh3+=) 26...Ke7 27.Ng2 f6 28.Bb2 (28.Ba1 f5+–) 28...f5 (28...a6 29.Kd2+–) 29.Ne3 (29.Ke1 Kd6+–) 29...f4 30.Nd5 Kd6 (30...Kf7 31.Be5 f3=) 31.Nc3+– Qa6 (31...Qa5 32.Ne4 Ke7 33.Nc5 Nc5 34.Rc5 Qa2 35.Rc7 Kd6 36.R1c6 Kd5 37.Rc5 Ke6 38.Kc1+–) 32.Ne4 Ke7 33.Nc5 Nc5 34.Rc5 Qa2 35.Rc7 (35.Rc7 Kd6 36.R1c6 Kd5 37.Kc1+–) 1–0. Gross,Wilhelm – Grehl,Siegfried, corr, 1992.

18.Ne1 h6 19.Rh7 Qe6 20.Nc3 Bc3 21.Bc3 Ba2 22.Nc2+=.

18.Be2 Qe4 19.a3 Bb3 20.Ke1+–.

18.Be2!? Bf3 19.Bf3 Ne5?! 20.Rg3. Dopper (20.Rh7 unclear Grehl/Gross, 1992).

18.Rg3 Bd6+= 19.Bg7 Ke8 20.Nc3 Ba2 (better 20...Bg3!? 21.Nd5 Qd6+=) 21.Ra2+– Bg3 22.hg3 Qd6 23.Be4 (23.Bh7?! Qg3 24.Be4 Qg7 25.Bc6 bc6+=) 23...Qg3 24.Bf6 (24.Bh8 Qf2 25.d3 Qf1 26.Ne1+–) 24...h5 (24...Qd6 25.Bh4 Qe6+–) 25.Rb2 Nd8 26.Rb5 Qh3 27.Rg5 Ne6 (27...Qf1 28.Kc2 Nc6 29.Rh5 Nb4 30.Kb3+–) 28.Rg8 Kd7 29.Ne5 Kd6 30.Bg2 (30.Bg2 Qh2 31.Ne4 Kd5 32.Nf2 Kd6 33.Nf3+–; 30.Nf7?! Kc5 31.Bb7 c6+–) 1–0. Durka,Jan – Drvota,Antonin, Trnava, 1979.

18.Ng5?? Ne5–+ 19.Rg8? (19.Rh7 Qg5 20.Rh8 Ke7 21.Be2–+) 19…Kg8 –+. Dopper,Johan – Bedbur,Heinz, corr SOK–92–78, 1992.

13.Qd3 Nf4?!

14.Qc2?! Ne2 15.Ke2 Qe7 –/+.

14.Qd8 Nd8 15.Be5.

14.Qd8 Rd8

15.Bb5? Bd5!–+ 16.Bc6 Bc6 17.Rf1 Ba4.

15.Rg1 g6

16.Bb5 Bc5

17.Rg3 Nd3 18.Bf6 Rd6 19.Nc3 +/–.

17.Rg5 Be7 18.Rg3 Nd3 19.Bc6 Nb2 20.Kc2 Nd3 +=.

17.Rg3 Bf2

18.Bf6 Re8 19.Bc6 bc6 20.Rg5 Nd3 +–.

18.Bf6 Re8 19.Bc6 bc6 20.Rg5 h6 +/–.

18.Bf6 Re8 19.Ne5 Nd5 20.Rf3 Bd4 21.Nc6 Bf6 22.Rf6 Bg4 23.Kc2 Nf6 24.Nd4 –/+.

18.Bf6 Re8 19.Ne5 Nd5 20.Rf3 Ne5 21.Be5 Bg4 22.Be8 Bf3 23.Kc2 f6 +/–.

18.Bf6 Re8 19.Ne5 Nd5 20.Rf3!? Nf6 21.Bc6 +/–.

18.Bf6 Re8 19.Ne5 Nd5 20.Rf3!? Nf6 21.Nc6? Bg4 22.Be2 Bf3 23.Bf3 Re1 24.Kc2 bc6 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Rf3!? Nf6 21.Rf2 Ne5 22.Rf6 Bg4 23.Kc1 +=.

18.Bf6 Re8 19.Ne5 Nd5 20.Rf3!? Nf6 21.Rf6? Bd4 22.Bc6 bc6 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3=+ 22.Rd3 Re1 23.Kc2 Ncb4 24.Kb3 Nd3 25.Bd3 Bd4 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3=+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kb2? Nd3?! 25.Bd3 Bd4 26.Nc3 =+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kb3 Nd3 25.Bd3 Bd4 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5=+ 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Rc1 25.Kb2 Rc5 26.Rd7 Rg5?! 27.Bc4 –/+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Rc1–+ 25.Kb2 Rc5 26.Rd7 Rg5?! 27.Bc6 bc6 28.Nc3 –/+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5=+ 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Rc1 25.Kb2 Rc5 26.Be3 Rb5 27.Rb3 Nd4 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5=+ 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Rc1 25.Kb2 Nd3?! 26.Bd3 Rc5 27.h4 =+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Rc1–+ 25.Kb2 Nd3?! 26.Bd3 Rg1 27.Bf4 Bd4 28.Nc3 Ra1 29.Ka1 =+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3=+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Rc1 25.Kb3 Nd3 26.Bc6 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.Nd3 Bd3–/+ 22.Rd3 Re1 23.Kc2 Ndb4 24.Kc3 Nd3?! 25.Bc6 Nc5 26.Bf3 =+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5 21.d4!? =.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bf5=+ 21.Nf3 Bg3 22.hg3 –+.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bg3 21.hg3 Ndb4 +=.

18.Bf6 Re8 19.Ne5 Nd5 20.Bg5 Bg3 21.hg3 f6 22.Nc6 Bg4 23.Kc1 fg5 24.Na7 +/–.

18.Bf6 Re8 19.Ne5 Bg3 20.hg3 Nd5 +=.

18.Bc6 bc6

19.Bf6!? Rd3 20.Nc3 +–.

19.Rg5 h6 20.Ra5 Bg4 –/+.

18.Bc6 bc6 19.Ne5 Bg3+= 20.hg3 Nd3 21.Nd3 Rd3 22.Be5 f6

23.Bc7 Rd7 24.Bb8 Bg4 25.Ke1 Re7 26.Kf1 Be2 27.Kf2 Bd3 28.Bd6 Re2 29.Kf3 –/+.

23.Bc7 Bg4 24.Ke1 +=.

18.Bc6 bc6 19.Ne5 Bg3+= 20.hg3 Nd3 21.Nd3 Rd3 22.Be5 Bg4 23.Ke1 Rd7

24.d4 Re7 25.Kd2 c5 +=.

18.Bf6 Rd6

19.Bc6 Rc6 20.Ne5 Ra6 21.Nc3 Bg3 22.hg3 Nd5 23.Nd5 Bd5 24.Bd8 Re6 25.Nd7 Bc6 26.Nc5 Bf3 27.Kc2 =.

19.Bc6 Rc6 20.Ne5 Ra6 21.Nc3 Bg3 22.hg3 Nd5 23.Nd5 Bd5 24.Bd8 Re6 25.Nd7 Bf3 26.Kc2 f5 =.

12.Kd1 Qe7

13.Nd4 Nd4 14.Bd4 c5 (14...Nf4 15.Bf3 c5 16.Bb2 Bf5 17.Rg1 g6 18.Re1+–) 15.Bb2 Nf4 16.Bf3 Bf5 17.Rg1 g6 18.Re1+–.

13.Nd4 Nf4 14.Qe3 (14.Bf3 Ne5 (14...Nd4) 15.Re1 Nfd3 16.Re2 c6 17.Be4 Nb2 18.Qb2=) 14...Ne6? (better 14...Nd4 15.Bd4 Ne2 16.Qe2 Qd7+– (16...Qe2 17.Ke2 Bg4 18.Kf2+–) 17.Qe5 f6 18.Qe4+–; 14...Qe3 15.de3 Ne2 16.Ke2 Bg4 17.Kf2 Ne5 18.Bc3+–) 15.Nc6+– bc6 16.Bd3 Bd6 17.Qe4 g6 (17...Ng5 18.Qe7 Be7 19.Nc3+–) 18.Qc6 (18.Qc6 Rb8 19.Qc3 Rb2 20.Qb2+–) 1–0. Fischbach,Rainer – Sanchez,J, corr ICCF Cup8/9 V170, 1990.

12.Kf2 Nf4

13.Nc3 Bc5 14.Ke1 Ne2 (better 14...Be6!? 15.Qb7 Nb4=+) 15.Ne2+= (worse 15.Ke2 Be6 16.Qc2 Bc4 17.Kd1 Bd3–/+) 15...Be6 (15...Bg4!? 16.d4 Bb6+=) 16.Qc3+– Bf8? (16...Qf8!? 17.Ng5 Re8+–) 17.Nf4 Bg4? (17...Bf5 18.Rg1 Bg6 19.Kf1+–) 18.Rg1 Qe7 (18...f5 19.h3 Qe7 20.Kf1 Bf3 21.Qf3 Rd8+–) 19.Ne2 (better 19.Kf2 f5 20.Qb3 Kh8 21.Ne6+–) 19...Re8–+ 20.Rg2 f5?? (better 20...Qe4 21.Rf2 Nb4–+) 21.Nfg1 (21.h3 Bf3 (21...Bh3?? 22.Ng5 Qb4 23.Nh3+–) 22.Qf3 Qf7+–) 21...Qh4 (21...Qd7!?+=) 22.Kf1+– Be2? (better 22...Qh6+–) 23.Ne2+– Re7 (23...Qe7 24.Qb3 Qf7 25.Ng3+–) 24.Ba3 Rf7 Black prepares f4 25.Bf8 Kf8 26.Rd1 (better 26.Rb1!? Nd8+–) 26...Qa4 27.Qa1?? (better 27.Rb1 b6 28.Rc1+–) 27...f4+= 28.Rf2 f3 29.Ng3 (29.Nc3 Qa6 30.Kg1 Ne5+=) 29...Nd4 (29...Ne5! 30.Qe5 Qd1 31.Qe1 Qc2=+) 30.Qb1 Qa6 (30...c5 31.Rc1 g6 32.Rc5+–) 31.d3 (31.Kg1!? Kg8 32.Re1+–) 31...c5+– 32.Qc1 Qc6 33.Ne4 Ne2?? (better 33...b6+–) 34.Qg5 Kg8 35.Qd8 (better 35.Qc5!? Qc5 36.Nc5 h6+–) 35...Rf8 36.Qe7 Qg6 (36...b6 37.Ng5 Nd4+–) 37.Qg5 Qg5 (37...Qe6 38.Qh5 Qa2 39.Qc5+–) 38.Ng5 h6 (38...Nd4 39.Re1+–) 39.Nf3 (39.Rf3 Nd4 40.Rf8 Kf8+–) 39...Nf4 40.Ng1 g5 (40...Nd5 41.Rf8 Kf8 42.Ke1+–) 41.Ne2 b6 (41...Nd5 42.Rf8 Kf8 43.Rc1+–) 42.Nf4 gf4 43.Re1 Rf6 44.Re4 Kf7 (44...Rd6 45.Ref4 Kh7 46.R2f3+–) 45.Ref4 Rf4 46.Rf4 Ke6 (46...Kg6 47.Rf8 Kg5 48.Ra8+–) 47.Rh4 b5 48.Rh6 Kd5 Black plans c4 (48...Ke5 49.Ra6+–) 49.Ra6 Kd4 (49...c4 50.dc4 bc4 51.Ra7+–) 50.h4 Kd3 51.h5 c4 52.h6 c3 53.h7 c2 54.Rc6 1–0. gstevenson (2335) – gerotnik (2320), net–chess.com, 2014.

13.Nc3 Nd4? 14.Qb4+– Nde2 15.Qe4 Nd3? (better 15...f5 16.Qe3 Nc3 17.Qf4 Ne4 18.Ke1 Qe7+–) 16.Ke2 Nb2 17.Rab1 Nd3 (17...f5 18.Qd5 Qd5 19.Nd5 Be6+–) 18.Qd3 Qd3 19.Kd3 Bf5 20.Ke3 (better 20.Ne4!? Rd8 21.Ke3 Re8+–) 20...Bb1 21.Rb1 b6 22.Nb5 Re8 (22...c6 23.Nbd4 Rc8 24.Kf4+–) 23.Kf2 c5 (23...Rc8 24.Na7 Rd8 25.Nb5+–) 24.Na7 h6 25.Rb6 Ra8 26.Rb7 1–0. orangutanb4 (2095) – atlas51 (1800), kurnik, 2011.

13.Nc3 Ne2?? 14.Ne2+– (14.Ke2 Nd4 15.Nd4 Qd4=+) 14...Be6 15.Qc2 Qd5 (15...f6 16.Ned4 Nd4 17.Nd4+–) 16.Rhg1 (16.Nf4 Bc5 17.Kg2 Qf5 18.Qf5 Bf5+–) 16...g6? (16...Bc5 17.d4 Bd6 18.Qd2+–) 17.d4 (17.Nf4!? Qf5 18.Qf5 Bf5+–) 17...Bf5 (17...Bd6!? 18.Qd2 Rf8+–) 18.Qb3+– Qe4 (18...Qd7!?+–) 19.Ng3 Qf4 20.Nf5 Qf5 21.Rg3 (better 21.Rac1!? Bd6 22.Rg5 Qd7+–) 21...Re8 22.Bc3 Bc3 (22...a5!?+–) 23.Qc3+– Re4 24.Kg2 (24.Kg1 Qf4 25.Rf1 Re3+–) 24...Re2+– 25.Kg1 Ne7? (25...Ra2!? 26.Ra2 Qb1 27.Qe1 Qa2+–) 26.Re1 (26.Qc7!? Qd5+–) 26...Nd5 27.Qc1 (27.Qa5 Re1 28.Qe1 Nf4+–) 27...Rc2? (better 27...Nf4!? 28.Qc7 Re1 29.Ne1 Ne2 30.Kg2 Nf4 31.Kh1 Qe4 32.Nf3 Nh5+–) 28.Qg5 Qg5 29.Ng5 (29.Rg5 f5 30.Rg2 Rc3+–) 29...h6 30.Ne4 Ra2 (better 30...Nf4 31.Ra3 a6+–) 31.Nc5?? (better 31.Nc3 Ra5 32.Nd5 Rd5 33.Re8 Kg7 34.Re7+–) 31...b6+= 32.Nd7 Kg7 33.Re5 Nf4 34.Rf3 g5 (34...Ne2!? 35.Kg2 Nd4 36.Rf2 Ra3=) 35.Re7+– a5 (35...Ra1!? 36.Kf2 Ra2 37.Ke1 Ra1 38.Kd2 Ra2 39.Kc1 Rh2+–) 36.Ne5 Ne2? (better 36...Kf6 37.Rc7 Ke6+–) 37.Kf1+– Nf4 38.Rf7 (38.Rc7?! Ra1 39.Kf2 Ra2 40.Ke1 Kf6+–; 38.Nf7?! Kg6+–) 38...Kg8 39.Rc7 a4 (39...Ra1 40.Kf2 Ra2 41.Ke1 Rh2+–) 40.Rf4 gf4 (40...gf4 41.h4 Combination) 41.Rb7 a3 (better 41...Rh2 42.Ra7 b5=) 42.Rb6?? (better 42.Ra7+–) 42...Rg2?? (better 42...Rh2 43.Rb8 Kg7 44.Rb7 Kf8 45.Nd7 Kf7 46.Nc5 Kg6–/+) 43.Kg2+– Kf8 44.Kf3 Ke7 45.Kf4 a2 46.Ra6 h5 47.Ke4 h4 48.d5 h3 (48...a1Q 49.Ra1 h3 50.Ra6 Kf8 51.d6 Kg8 52.d7 Kf8 53.d8Q Kg7 54.Rg6 Kh7 55.Qh4) 49.Ng4 (49.d6 Ke6 50.d7 Ke7 51.Ra2 Ke6 52.d8B Kd6 53.Rc2 Ke6 54.Rc6) 49...Kd8 (49...a1Q 50.Ra1 Kd7 51.Ke5 Kc8 52.d6 Kd7 53.Rd1 Ke8 54.d7 Kd8 55.Rd3 Kc7 56.d8Q Kb7 57.Rb3 Kc6 58.Qd6) 50.Ke5 Kd7 (50...Ke8 51.d6 Kd7 52.Ra2 Kc6 53.Rc2 Kb6 54.d7 Ka6 55.d8Q Kb7 56.Rb2 Kc6 57.Qd6) 51.d6 Kd8 (51...a1Q 52.Ra1 Kc6 53.Rc1 Kb5 54.d7 Ka4 55.d8Q Ka3 56.Qd2 Ka4 57.Rb1 Ka3 58.Qa5) 52.Ke6 a1Q (52...Kc8 53.d7 Kb7 54.Ra2 Kc7 55.Rc2 Kb7 56.d8Q Ka7 57.Rb2 Ka6 58.Qb6) 53.Ra1 Kc8 54.d7 (54.Rb1 Kd8 55.Rb8) 54...Kc7 (54...Kd8 55.Ra8 Kc7 56.d8Q Kb7 57.Rb8 Kc6 58.Qd6) 55.Rc1 (55.d8Q Kd8 56.Rc1 Ke8 57.Rc8) 55...Kb7 (55...Kb6 56.d8Q Kb7 57.Rb1 Kc6 58.Qd6) 56.d8Q Ka6 (56...Ka7 57.Rb1 Ka6 58.Qb6) 57.Qb8 Ka5 58.Ra1 1–0. beciab70 (1635) – gmcomment, kurnik, 2014.

13.Nc3 Be6!? 14.Qa4 Bc5 15.d4 Bd4 (15...Nd4?! 16.Ne4 Nf3 17.Nc5=) 16.Nd4 Nd4–+.

13.Bc4 Bc5 14.Ke1 Qe8 15.Kd1 Bg4 16.Re1 Qd7 17.Kc1 Rf8 18.Qc3+–.

13.Bc4 Bc5 14.Ke1 Bg4 15.h3 Bh5 16.Qc3 Qf8 17.Ba3 Qe7=+.

13.Bc4 Bc5 14.Kg3 Qd7–+ 15.h3 Nh5 (better 15...Nh3 16.Bf7 Kh8–+) 16.Kg2=+ Nf4 17.Kg3 Nh3 18.Bf7 Kh8 19.Bh5 Bd6 20.Kg2 Nf4 21.Kf1 Nh5?? (better 21...Qf5 22.Qc3 Bf8–+ (22...Nh5? 23.Rh5 Qf7 24.Kg1+–)) 22.Rh5+– Qg4?? (better 22...Qe8 23.Rg5 Bf8+–) 23.Rg5+– Qh3 (23...Qd7 24.Rg7 Qg7 25.Bg7 Kg7 26.Nc3+–) 24.Kf2 Bc5 (24...Qe6 25.Qc3 Ne5 26.Ne5 Qf6 27.Nf3 Qc3 28.Nc3+–) 25.Rc5 Bg4 26.Rg5 Ne5 (26...Rg8 27.Qc3 Qf3 28.Qf3 Bf3 29.Kf3 Ne7+–) 27.Be5 Rf8 28.Bg7 1–0. Gu77 – Gu91, internet, 2018.

13.Bc4 Be6 14.Be6 fe6 15.Ke3 Qd6 16.Rf1 Bc5 17.d4 Nd4 18.Bd4=.

13.Bc4 Be6 14.Be6 fe6 15.Ke3 Qd6 16.Rc1 Rf8 17.Rg1 Bc3–+.

13.Bc4 Qf8?? 14.Rg1 (better 14.Qe3 Bc5 15.d4+–) 14...Nh3=+ 15.Ke2 (15.Kg2 Na5 16.Qc2 Qc5 (16...Ng1?? 17.Ng5 g6 18.Bf7 Qf7 19.Nf7 Kf7 20.Qc7 Be7 21.Nc3+–; 16...Nc4?! 17.Qc4 Ng1 18.Kg1=+) 17.Bf7 Kf7 18.Qc5 Bc5=+) 15...Qe7 (better 15...Ng1 16.Ng1 Bg4 17.Kf1 Na5–+) 16.Ne5?? (16.Kf1 Ng1 17.Ng1–/+ (17.Kg1? Na5 18.Bf7 Qf7 19.Qb4 Qf3–+)) 16...Ng1–+ 17.Kd1 Ne5 18.Qg3 (18.Be5 Bg4 19.Kc1 Qe5 20.Bf7 Kh8 21.Qb4 Ne2 22.Kc2 Bf5 23.d3–+) 18...Bg4 19.Kc2 Qc5 (better 19...Ngf3!? 20.a3 Qc5 21.Be5 Qc4 22.Kb2–+) 20.Kb3 (20.Qe5 Qc4 21.Bc3–+) 20…Qc4 (20...Qc4 21.Ka4 Bd7; 20...Bd1) 0–1. gerotnik (2320) – juditfan (2330), net–chess.com, 2014.

13.Bc4 Nh3 14.Kf1 Qd7 15.Qe3 Be7 16.Nc3 Qg4 17.Qe4 Bf5+–.

13.Bc4 Nh3 14.Kf1 Bg4 15.Bf7 Kh8 16.Be6 (16.Bd5!?+=) 16...Be6=+ 17.Qe6 Qd3 18.Qe2 Qf5 19.d3?? (19.Rg1 Ng1 20.Kg1–+) 19…Rf8 (19...Rf8 20.Bc3 Qh5–+ (20...Qf3?! 21.Qf3 Rf3 22.Ke2 Bc3 23.Nc3 Nd4 24.Kd2 Rf2 25.Kd1–+)) 0–1. juditfan (2330) – pierred (2765), net–chess.com, 2014.

13.d4 Ne2 14.Ke2 b6 (better 14...Be6 15.Qd3 Qd7+= 16.Kf2 Bf5 17.Qe3 Re8 18.Ne5+=) 15.Ne5?? (15.d5 Ba6 16.Kd1 Qe7+– 17.Nfd2 Be2 18.Kc1+–) 15...Bg4 (15...Ne5 16.Qb4 Bg4 17.Kd2 Qg5 18.Kc2 Qg6 19.Kd2 Qh6 20.Kc2 Bf5 21.Kb3 Qe6 22.Ka3 a5–+) 16.Ke3?? (better 16.Ng4 Nd4 17.Bd4 Qd4 18.Ne3 Qa1 19.Qb4 Qa2 20.Nd2+–) 16...Qg5 17.Kf2 Ne5 18.de5 Qf4 (18...Qf4 19.Kg2 Qe4 20.Kg3 h5–+ (20...Qh1?! 21.Nd2 Qc6 22.Qb4=+)) 0–1. Hasler,Ulrich – Perlitz,Juergen, corr SOK–88–26, 1988.

13.d4 Qe7 14.Qd1 Nh3 15.Kg2 Qe3 16.Rf1 Nf4 17.Kh1 Bh3 18.Rg1 Ne2.

13.Qe3 Nd5 A) 14.Qg5 Qg5 (14...Bc5 15.Ke1 Qg5 16.Ng5 Nd4 17.Bd3 h6 18.Ne4+–; 14...f6) 15.Ng5 Bc5 16.Kf1 h6 17.Bf3 Nf4 18.Ne4+=; B) 14.Qe4 Be6 (14...Nf6 15.Qf4 Bc5 16.Kg2 Nh5 17.Qe4 Be6 18.Nc3+–; 14...Bd6 15.Re1 Nf4 16.Bc4 Be6 17.Be6 fe6 18.Kf1+–; 14...Bc5 15.Kg2 Be6 16.Re1 Qd6 17.Kh1 Nf4 18.Nc3+–; 14...Be7 15.Re1 Nf6 16.Bf6 Bf6 17.Nc3 Be6 18.Rab1+–; 14...a6 15.Re1 Be6 16.Bd3 g6 17.Bc4 b5 18.Bb3+–) 15.Rf1 Qd6 16.Ke1 Re8 17.Nd4 Bd7 18.Qf3+–.

13.Rg1 Be6?? 14.Qe3 (better 14.Rg7 Kf8 15.Qe3+–) 14...Nh3=+ 15.Kg2 Ng1 16.Kg1 Qd7 17.Nc3 b6 18.Ne4 Rd8?? (18...f5 19.Bb5 fe4 20.Nd4=) 19.Ne5 (better 19.Qg5 Bc5 20.Kg2+–) 19...Ne5= (19...Bd2?? 20.Nf6 (worse 20.Nd2 Qd2 21.Qd2 Rd2 22.Nc6 Rb2–/+) 20...Kh8 A) 21.Nfd7? Be3 22.Kg2 A1) worse 22...Bd7 23.Nf7 Kg8 24.Nd8 Nd8 25.Rd1 Bc6 26.Bf3 Bf3 27.Kf3+=; A2) 22...Rd7?! 23.Nd7 (23.Nc6?? Rd2–+) 23...Bd4 24.Rb1=+; A3) 22...Ne5 23.Ne5 Rd2–+; B) 21.Qe4 Be3 22.Kh1+– (22.Qe3 Qd2 23.Qe4 gf6 24.Nf7 Bf7 25.Bf6 Kg8 26.Qg4 Kf8 27.Bg7 Ke7 28.Qh4 Kd7+–)) 20.Be5 Bd2?? (better 20...f5 21.Bc3 Bc3 22.Nc3 Qd4=) 21.Qg3+– (21.Qd2 Qd2 22.Nd2 Rd2=) 21...g6 (21...Bg4 22.Bg4 Qd3+–) 22.Nf6 Kf8 23.Nd7 Rd7 24.Bc7 Kg8 (24...Bb4 25.Qf4 Bc5 26.Kg2+–) 25.Rd1 Ba2 (25...Rd5+–) 26.Be5 Bd5 27.Rd2 (27.Rd2 a5 28.Qg5 Kf8 29.Bb5 h6 30.Qh6 Ke7 31.Qg5 Ke8 32.Bf6 Bc6 33.Qh6 Rd2 34.Bc6 Rd7 35.Qh8) 1–0. brother – bacablanca (1640), kurnik, 2013.

13.Rg1 Nh3 14.Kg2 Ng1 15.Ng1 Be6 16.Bc4?? (better 16.Qe3–/+) 16...Qg5–+ 17.Kh1 Na5 18.Qb4 Nc4 19.Nc3 Bd5 20.Nd5 Qd5 21.Nf3 Qf3 22.Kg1 Re8 (worse 22...Nb2 23.Qb2 Qg4 24.Kh1 Qe4 25.Kg1–+) 23.Qc3 (23.Qc4 Re2 24.Qe2 Qe2–+) 23...Qg4 24.Kf1 (24.Qg3 Qg3 25.hg3 Nb2–+) 24...Re5 25.Rc1 (25.Qg3 Qe2 26.Kg1 Nb2 27.Qg2–+) 25...Rf5 26.Ke1 Qg1 (26...Qe4 27.Qe3 Ne3 28.de3 Qd3 29.Rc7 Rf1) 27.Ke2–+ Qh2 (better 27...Qf2 28.Kd3 Nb2 29.Kc2 Rc5 30.Qc5 Qc5 31.Kb2 Qe5 32.Kc2 Qh2–+) 28.Ke1 (28.Kd3 Nb2 29.Kc2 Na4–+) 28...Qg1 (28...Nb2 29.Qb2 Qh1 30.Ke2 Qf3 31.Ke1 Qf1) 29.Ke2–+ Qg2 (29...Qf2 30.Kd3 Nb2 31.Kc2–+) 30.Kd3 Rf3 (30...Nb2 31.Kc2 Na4 32.Re1–+) 31.Kc2 (31.Kc4 Rc3 32.Kc3 Qf3 33.d3–+) 31...Rc3 32.Bc3 c6 (better 32...Qe4!? 33.Kd1 Na3 34.Bb2 Qg4 35.Ke1–+) 33.Re1 f6 34.Re7 b5 35.Ra7 (35.Kd1 Qf3 36.Kc2 Qf5 37.Kc1 a5–+) 35...Qe4 (better 35...Qg6 36.d3 Ne3 37.Kd2 Qg2 38.Ke3 Qg1 39.Ke4 Qa7 40.Bd4 Qa2 41.Ke3–+) 36.Kc1 h5 37.a4 h4 38.ab5 cb5 (better 38...h3 39.d3 Qe3 40.Kc2 Qa7 41.dc4–+) 39.Ra8 Qa8 (39...Qa8 40.Kd1 h3 41.Bd4 h2 42.Ke2 Qe4 43.Kf1 h1Q 44.Kf2 Qhe1) 0–1. marvis (1835) – gentelmenjoe (1870), kurnik, 2013.

13.d4 Be6

14.Qc2 Bd5 (14...Bd6 15.Nc3 Nb4 16.Qb1 Ne2 17.Ne2 Qf6 18.Bc1=; 14...Qd7; 14...Ne2; 14...Qd5; 14...Be7; 14...Nh3) 15.Rd1 Qf6 16.Rf1 Bf3 17.Bf3 Nd4 18.Bd4–+.

14.Bc4 Na5 (14...Nh3) 15.Qb4 Nc4 16.Rd1 Nh3 17.Ke2 Qf6 18.Nc3–+.

14.Qd1 Qd5 15.a3 Ne2 16.Qe2 Be7 17.Nc3 Qf5 18.Rhd1+=.

14.Qd1 Qd6 15.a3 Ba5 16.Nbd2 Ne2 17.Qe2 Re8 18.Nc4+–.

14.Qd1 Ne2 15.Qe2 Bd5 16.a3 Bf3 17.Qf3 Nd4 18.Qe4=.

14.Qd1 Qe7 15.Bb5 Qf6 16.Rf1 Qg6 17.Ke3 Ne7 18.Nc3–+.

14.Qd1 Ne7 15.a3 (15.Nc3 Nf5=) 15...Bd6 (15...Nh3 16.Kf1 Nd5 17.Bc1–/+) 16.Nbd2 (16.Nc3!?=) 16...Nf5=+ 17.Ne4? (17.Bc4 Nh3 18.Ke1 Qe8–/+) 17...Nh3 (better 17...Bd5!? 18.Nd6 Qd6–+) 18.Ke1=+ Bf4 (18...Bd5 19.Nd6 Qd6 20.Qd3=+) 19.Bc1= Ne3 20.Be3 Be3 21.Qd3? (better 21.Qc2=) 21...Nf4–+ 22.Qc2 Bd4 (better 22...Bf5 23.Bc4 Qe7–+) 23.Nd4?? (better 23.Rd1 Ng2 24.Kd2–/+) 23...Qd4–+ 24.Nf6 (24.Bf3 Qe3 25.Be2–+) 24...Qf6 25.Rd1 Ng2 26.Kd2 Qf4 27.Kc3 Qe5 28.Kb4 a5 29.Ka4 Ne3 30.Qd3 Qf4 (30...Nd5 31.Qd5 Bd5 (31...Qe2?? 32.Qd8 Rd8 33.Rd8) 32.Rd5 Qe4 33.Kb3 Qd5 34.Kc3 Qh1 35.a4 Qc1 36.Kd3 Re8 37.Bg4 Re3 38.Kd4 c6 39.Be6 Qc3) 31.Qd4 Nd1 32.Qf4 0–1. gstevenson (2335) – juditfan (2330), net–chess.com, 2014.

14.Qd1 Qf6 15.a3 Ba5 16.Nc3–/+.

14.Qd1 Qf6 15.a3 Bd6 16.Nc3 Ne5 17.Ne5 Ne2 18.Nf3+=.

14.Qd1 Nh3 15.Kf1 Ne7 16.Nc3 Nd5 17.Nd5 Bd5 18.a3+=.

14.Qe3 Bd6 (14...Ne2 15.Qe2 Qd6 16.a3 Ba5 17.Nbd2 Qd5 18.Rhg1+–; 14...Qf6 15.Rf1 Ne2 16.Qe2 Rd8 17.Kg1 Bd5 18.a3+=; 14...Qd6 15.a3 Ba5 16.Nc3 Bc3 17.Qc3 Ne2 18.Ke2+–; 14...Nd5 15.Qc1 Bd6 16.Qg5 Ncb4 17.Qd8 Rd8 18.Ne1+=) 15.Nc3 Nb4 16.Qd2 Bf5 17.Bf1 Qf6 18.Ne5=.

13.Qe3 Ne2

14.a3 Ned4 15.Bd4 Nd4 16.Qd4 Qd4 17.Nd4 Bc5=.

14.Re1 Be6 (14...Bf5 15.Ke2 Qd7 16.Kf2 Rd8 17.Qg5 Bc5 18.Kg2+–; 14...a6 15.Re2 Bf5 16.a3 Ba5 17.d4 Qd7 18.Nbd2+–; 14...Bg4 15.Re2 Qd5 16.d4 Rd8 17.Nbd2 Be6 18.Ne4+–; 14...Kh8 15.Re2 Be6 16.Ng5 Bc4 17.Qe4 Bc5 18.Ke1+–; 14...Rb8 15.Re2 Bf5 16.a3 Be7 17.Ke1 Qd7 18.Qg1+–; 14...Bh3 15.Re2 Bf5 16.a3 Ba5 17.d4 Be6 18.Nbd2+–; 14...b6 15.Re2 Ba6 16.Re1 Bd3 17.Qf4 Qd7 18.Kg2+–; 14...Bd7 15.Re2 Bf5 16.a3 Be7 17.Ne5 Bg5 18.Qc5+–) 15.Re2 Ba5 16.Ke1 Nb4 17.Kd1 Qd3 18.Qd3+–.

14.Ke2 Bg4 (14...Bf5 15.a3 Bf8 16.Re1 Qd7 17.Kf2 Be7 18.Kg2+–; 14...Bf8 15.Rg1 Bf5 16.Qc3 Bg6 17.Ba3 Qd7 18.Bf8+–; 14...Kh8 15.Rg1 f6 16.Nc3 Bf5 17.Rae1 Ba5 18.Na4+–; 14...Be6 15.Rg1 g6 16.Nc3 Qf6 17.Rab1 Bc4 18.Kf2+–) 15.Rg1 Qd7 16.Kf2 Bf8 17.Ne5 Ne5 18.Be5+=.

14.Qe2 Bc5 (14...Bg4 15.Qc4 Bf3 16.Kf3 Qg5 17.Qg4 Qd5 18.Qe4+–; 14...Be6 15.Qe3 Ba5 16.Kg2 Bd5 17.Re1 Bb6 18.Qf4+–) 15.Kg2 Bf5 16.Rc1 Qd6 17.Re1 Rf8 18.Kh1+–.

14.Rf1 Be6 15.Qe2 Bc5 16.Kg2 Bd5 17.Kh1 Qd7+–.

14.Re1 Bg4

15.Ke2 Qh4 +=.

15.Qe2?! Bc5 16.Kg3 Bd4 17.Qe8 Qe8 18.Re8 Re8 19.Nd4 Bd7 =.

15.Re2 Qd5 16.d4 Rd8 17.Nbd2 Be6+–.

15.Re2 Qd5 16.Qe4 Qh5 17.d4 Rd8 18.a3 f5 19.Qe6 Kh8

20.ab4 Bf3 21.Kf1 Nb4 =+.

20.ab4 Bf3 21.Kf1 Qh3 22.Kg1 Qg4 23.Kf1 Be2 24.Qe2 Qf4 25.Qf2 Qf2 26.Kf2 Nb4 27.Ra7 Nd3 28.Kf3 Nb2 29.Rb7 Nd3 =+.

20.Qe3 f4

21.Qe4 Bc5 22.dc5 Bf3 23.Qf3 Qh2 24.Kf1 Rd1 25.Re1 Re1 26.Ke1 Qb2 27.Qc3 Qg2 28.Nd2 b6 29.cb6 Qh1 30.Ke2 Qg2 31.Kd1 ab6 +–.

21.Qe4 Bc5 22.Qf4? Rf8 23.Qf8 Bf8 –+.

21.Qf4 Rf8.

12.Kf2 Bh3

13.Ba3 Qe7 14.Bb4 Nb4. Gross.

13.Rc1 Qd6 14.Bf1 Nf4 15.Rc6! bc6 16.Be5 Bc5 17.d4 Bd4 18.Bd4 Bf1 19.Kf1 c5 20.Be5 Qa6 21.Kf2 Qe2 22.Kg3 Nh5 23.Kh3 Re8 24.Na3 (24.Bc7 Qf1 25.Kh4 Re4 26.Kg5 h6 27.Kf5 Nf6 28.Qb8 Kh7 29.Qg8 Kg8 30.Be5 Qh3) 24...Re5 25.Re1! (25.Ne5?! Nf4 26.Kg3 Nh5 27.Kh3 Nf4 28.Kg3 Nh5=) 25...Nf4 26.Kg4 h5 27.Kf4 g5 28.Kg3 h4 29.Kg4 Qg2 30.Kh5 Re1 31.Ne1 Qh2 32.Nf3 Qe2 33.Nc4 Qe8 34.Kg5 (34.Kg5 h3 35.Kh4+–) 1–0. Krasny,Henryk Jan – Schwertel,Gottfried, corr SOK–98–131, 1999.

13.Rc1 Qe7 14.Ba3 Re8 (14...a5 15.Bb5 Nf4 16.Bb2=) 15.Bf1 a5 16.Bb4 ab4 17.Qd5 (17.a3!?=) 17...h6 18.Rc6 bc6 19.Qc6? (better 19.Qe5! Qe5 20.Ne5 Re5 21.Bg2 Bg2 22.Kg2 Re2 23.Kh3–/+) 19...Nh4–+ 20.Bb5? (better 20.Bh3 Qe2 21.Kg3 Nf3 22.Qf3 Qe5 23.Qf4 Qa1 24.Bf5–+) 20...Rd8 21.a4 (21.Bf1 Bd7 22.Qc7 Nf3–+) 21...Bg2 22.Be2 Bf3 23.Bf3 Qe5 24.Ra2 (24.Qe4 Qh2 25.Kf1–+) 24...Qh2 (better 24...Re8 25.Qe8 Qe8–+) 25.Ke3 (25.Kf1 Rd4 26.Qa8 Kh7 27.Be4 f5 28.Bd5 Qf4 29.Ke1 Qe5 30.Kd1 Rd5 31.Rc2–+) 25...Qg3 (25...Nf5 26.Ke4 Rd4 27.Kf5 Qf4) 26.a5 Nf3 (26...Ng2! 27.Ke4 Qf4) 27.a6 Nd4 (27...Nd4 28.Qf3 Qf3) 0–1. Agamaliev,Gamil – Nadanian,Ashot, Internet Chess Club 3m + 0s blitz, 2008.

13.Bc4!? Qd7 14.Bf7 Kh8+–.

13.Rd1 Qd6 14.a3 A) 14...Ba5 15.d4 Nf4 16.Bc4 Rf8 17.Nc3 Bb6 18.Ne4 Qg6+/–; B) 14...Bc5 15.d4 Bb6 16.Bc4 Rf8 17.Bd3 Re8 18.Bh7 Kh7+/–.

13.Rd1 Be6 A) 14.Qc2 Nf4 15.a3 Ba5 16.Bb5 Qd5 17.Qa4 Bb6 18.d4 Bg4=; B) 14.Bc4 Nf4 15.d3 a5 16.Be6 Ne6 17.Qc4 Bc5 18.Kg2 Qd7+/–.

13.Rd1 Nf4 A) 14.Bb5 Be6 15.Qe3 a6 16.Qf4 ab5 17.Qg3 Bc5 18.Kg2 Nd4+/–; B) 14.Qe3 B1) 14...Qd6 15.Nc3 Ne2 16.Ne2 Bc5 17.d4 Bb6 18.Rg1 Rd8+/–; B2) 14...Ne2 15.a3 Ned4 16.ab4 Bg4 17.Nd4 Nd4 18.Qd4 Qd4+/–; C) 14.a3 C1) 14...Be6 15.Qe3 Nd5 16.Qe4 Bc5 17.d4 Bd6 18.Nc3 Nf6+/–; C2) 14...Bc5 15.d4 Bb6 16.Bc4 Be6 17.Be6 Ne6 18.Qe3 Qf6+/–; D) 14.Bc4 Be6 15.d3 Qd6 16.Be6 fe6 17.a3 Bc5 18.d4 Bb6+/–.

13.Bf1!? Nf4 14.Qc4 Bf1 15.Qf4 +=. Gross.

13.Kg3? Qd6 14.Kh3 Nf4 15.Kg3 Ne2 16.Kf2 Re8. Grehl, Gross.

13.Nc3 Bc5

14.d4? Nd4! idea Nf3.

14.Kg3 Nd4 15.Qc4 Nf3 16.Kh3 Qg5 17.Qg4 Nf4 18.Kg3 Nh5! 19.Kh3! Nf4 =.

14.Kg3 Qd6 15.Kh3 Nf4 16.Kg3 Ne2 –+ 17.Kg2 Nf4 18.Kg3 Qd3 19.Nb5 Nh5 20.Kg2 Qe2 21.Kh3 Nf4 22.Kg3 Re8 23.Nc7 Qg2 24.Kf4 Bd6 25.Be5 Re5 26.Ne5 Be5 27.Ke3 Nd4 28.Qd1 f5 29.Rc1 Qe4 30.Kf2 Qf4 31.Kg2 Bc7. Gross.

14.Kg3 Qd6? 15.Kh3+– Nf4 16.Kg3 Ne2 17.Kg2 Nf4 18.Kg3 Qd3?? 19.Nb5 Nh5 20.Kg2 Qe2 21.Kh3 Nf4 22.Kg3+/– Re8 23.Nc7?? Qg2 24.Kf4–+ Bd6 25.Be5 Re5 26.Ne5–/+ Be5 27.Ke3 Nd4 28.Qd1–/+ f5 29.Rc1 f4 30.Kd3 Qg6 31.Kc4 Qe4 32.Nb5 Nb5 33.Kb5 Qd3 34.Ka5 Qd5 35.Kb4 Qd6 36.Ka4 Qd4 37.Kb3 Qb2 38.Kc4 Qd4 39.Kb3 Qb2 ½–½. Psion – Psion, 4 Min/Zug, 1989.

14.Kg3 Qd6 15.Kh3 Nf4 16.Kg3 Ne2 17.Kg2 Nf4 18.Kg3 Re8 19.Raf1?? Qg6 20.Kf4–+ Bd6 (20...Bd6 21.Ne5 Re5 22.Qd5 Qf5 23.Kg3 Rd5 24.Kg2 Rd2 25.Rf2 Qf2 26.Kh3 Qf3 27.Kh4 Be7#).

14.Kg3 Qd7 15.Qc4 Qd6 16.Kh3 Nf4 17.Kh4 Bf2 18.Kg4 h5 19.Kf5 Qg6 20.Kf4 Qg4.

13.Bc4 Bc5

14.Kg3 Qd7 15.Bf7! Qf7 16.Qf7.

14.Kg3 Qd7 15.Bf7 Kh8 16.Qc4 Rf8 17.Ng5?? Bd6–+ 18.Kf2 Qf5 19.Ke2 (19.Nf3 Rf7 20.Qb3–+) 19…Bg4 (19...Bg4 20.Qg4 Qg4 21.Kf1 Qg5 22.Bg7 Qg7 23.Ke2 Nf4 24.Kd1 Qa1 25.Bg6 hg6 26.Ke1 Qb1 27.Kf2 Nh3 28.Kg2 Qd3 29.Re1 Qf3) 0–1. Alvarez,Maximiliano – Roldan,Antonio, corr Them. Sokolsky, 1998.

14.Kg3 Qd7 15.Bf7 Kh8 16.Qc4 Rf8 17.Bg7 Kg7 18.Be6 Qd6 19.Kh3 Nf4 20.Kg4 h5 21.Kg3 Ne6 22.Kg2 Rf3 23.Qc5 Qc5 24.Rg1 Rf2 25.Kh1 Kf8 26.Nc3 Qf5 27.Rg3 Rf1 28.Kg2 Qf2 29.Kh3 Nf4 30.Kh4 Qh2 31.Rh3 Qh3 32.Kg5 Qg3 33.Kh6 Qg7.

14.Kg3 Qd7 15.Bf7! Kh8 16.Qc4 Rf8 17.Bg7 Kg7 18.Be6 Qe6 19.Qe6 Be6 20.Kg2 –+.

14.Kg3 Qd7 15.Bf7! Kh8 16.Bh5?? Nf4–+ (16...Nf4 17.Kf4 Qf5 18.Kg3 Qh5–+) 0–1. Ogden,Kimberly – Plock,Joerg, corr or03–032, 2003.

13.Bc4 Qe7

14.Bf7 Qf7? 15.Qf7 Kf7 16.Ng5! Gross, 1988.

14.Rg1 Na5 15.Bf7 Kf8 16.Qd5. Gross.

14.Rg1 Rf8 15.Rg2. Gross.

14.Rg1 Bc5 15.d4 Nd4 16.Bf7 (16.Nd4 Qf6 17.Ke2 Re8 18.Kd1 Bd4) 16...Kf8! (16...Qf7? 17.Qf7 Kf7 18.Bd4 (18.Ng5?! Kg8 19.Nh3 Nh4 (idea Nc2)) 18...Bd4 19.Nd4+–) 17.Nd4 (17.Bd4 Bd4 18.Kg3 Bg1) 17...Qh4 18.Kf3 (18.Ke2 Bd4 (idea Qe4)) 18...Qg4 19.Kf2 Bd4 20.Bd4 Qd4 21.Ke2 Qg1. Gross, 1988.

14.Kg3 Na5!? Gross.

14.Kg3 Qd7 15.Bf7 Kh8 (15...Qf7? 16.Qf7 Kf7 17.Ng5) 16.Ba3 (16.Qc4 Rf8 17.Ne5? Ne5 18.Qb4?? Qd3; 16.Qd5 Qg4 17.Kf2 Nf4; 16.Ne5 Ne5 17.Qb4 Qd3) 16...Rf8 17.Qd5 Bd6 18.Bd6 Rf7 19.Qe4 Qd6 20.Kh3 Nf4 21.Kg3 Qg6. Gross.

14.Bf7 Kh8

15.a3 Rf8 16.ab4 (16.Bd5 Qh4 17.Ke2 Re8) 16...Rf7 17.Rg1 Qh4. Gross, 1988.

15.Qc4 Rf8 16.Kg3 Rf7 17.Kh3 Nf4 18.Kg3 Na5 19.Qc2 Ne2. Gross, 1988.

15.Qd5 Re8 16.Qh5 Nf4 17.Bg7 Kg7 18.Rg1 Kh8! Gross, 1988.

15.Bd5 Bc5 16.Kg3 Qd6 17.Kh3 Nf4 18.Kg3 Qg6 19.Kf4 Rf8 20.Bf7 Rf7 21.Qf7 Qf7 22.Kg3 Ne7 (22...Nb4 23.Nc3 Qg6 24.Kh3 Nd3–+) 23.Kg2?? (23.d4 Bd6 24.Kf2+–) 23...Qg6–+ 24.Kh3 0–1. Nebe,Lutz – Vorlop,R, corr I–3807, 1988.

15.Bd5 Rf8 16.d4 (16.Ba3 Qc5 17.Kg3 Qd6 18.Kh3 Nf4 19.Kh4 Qh6; 16.Qc4 Bc5 17.Kg3 (17.d4 Qe3!) 17...Qd6 18.Kh3 Nf4 19.Kg4 Qg6 20.Ng5 Qh5!; 16.Bc6 bc6 17.Rg1 Qh4 18.Ke2 Qe4!) 16...Nf4 17.Bc4 (17.Nc3 Nd3) 17...Na5 18.Qc2 Nc4 19.Qc4 Be6 20.Qc2 (20.Qb5 Nh3 21.Kg2 Rf3 22.Kf3 Qf7!) 20...Bf5. Gross, 1988.

15.Rg1 Rf8 16.Rg2 Bg2. Gross, 1988.

15.Kg3 Qd7. Gross, 1988.

13.Rd1 Qe7

14.a3 Bc5 15.d4 Bb6 16.Bb5 Qf6 17.Qd5 Re8 18.Qg5 Qd6 +/–.

14.Ba3 Re8? (14...Nd4 15.Nd4 Qh4 16.Kg1 Qd4 17.Kh1=) 15.Bf1 (better 15.Bc4+–) 15...g5? (better 15...Be6 16.Qa4 Nh4 17.Bb4 Qf6+–) 16.Bb4+– Nb4 17.Na3 (better 17.a3!? g4 18.ab4 gf3 19.Qf3 Ne1 20.Qh3 Qf6 21.Kg1 Qa1+–) 17...g4 18.Re1 (better 18.Kg1 Rd8 19.Ne5 Qe5 20.Qb4+–) 18...Ne1+= 19.Re1 Qc5 20.d4 Re1 21.Bh3 (worse 21.dc5 Rf1 22.Ke2 gf3 23.Ke3 a5–+) 21...Re2 22.Ke2 gf3 23.Qf3 (23.Kf3 Qd4 24.Bf5 c5=) 23...Qd4=+ 24.Qg4 Qg4 25.Bg4 Na2 The passed pawn on a7 quickly leads to threats 26.Nb5 a5 27.Nc7 Nb4 28.Bc8 b6 29.Na8 (29.Bd7 Nc2=) 29...a4 30.Kd2 (30.Nb6?? a3 31.Kd2 a2–+) 30...a3 31.Kc3 (31.Nb6?? a2 32.Kc3 a1Q 33.Kb4 Qb2 34.Kc5 Qf2 35.Kb5 Qh2–+) 31...a2 (31...Kg7 32.Nb6 (32.Kb4?? a2–+) 32...Kf6 33.Nd7 (33.Kb4 a2–+) 33...Kg5 34.Nc5+– (34.Kb4 a2–+)) 32.Kb2 Nd5? (better 32...Kg7=) 33.Ka2 Kg7 ½–½. Zschalich,Arndt – Preussner,Michael, corr, 1989.

14.Bc4 Rf8 15.a3 Bc5 16.d4 Na5 17.Qc3 Qe3 18.Qe3 Ne3 =.

14.Ng1?? Bc5–+ 15.d4 Nd4! 16.Rd4 Qh4 (16...Qh4 17.Qg3 Bd4 18.Kf1 Ne3 19.Ke1 Qg3 20.hg3 Bb2 21.Nh3 Ba1–+; 16...Bd4!? 17.Kf1 Nf4 18.Qh3 Nh3 19.Bd4 Ng1 20.Nc3 Ne2 21.Ne2–+) 0–1. Zschalich,Arndt – Leisebein,Peter, corr, 1987.

14.Ng1?? Bc5–+ 15.d4 Nd4! 16.Bd4 Qh4.

14.Ng1 Bc5 15.d4 Nd4 16.Qh3 Nf4–+ (< 16...Ne2 17.Bd4 Bd4 18.Rd4 Nd4 19.Qc3–+).

13.d4 Qe7

14.a3 Bd6 15.Qb7?? Qe3. Grehl.

14.a3!? Bd6 15.Bc4 +/–.

14.a3 Bd6 15.d5 Bc5 16.Kg3 Qe2 17.Qc3 Bd6 18.Qe5 Ne5 19.Be5 Be5 20.Ne5 Qe5 21.Kh3 Qg5 22.Rf1 h5 23.Rf7 Qg4.

14.a3 Re8 15.ab4 Qe2 16.Kg3 Ne1 –+.

14.a3 Re8 15.Bc4 Na5 16.Qb4 (16.Bf7 Kh8 17.Qd1 (17.Qb4 Qe2 18.Kg3 Ne1 19.Qf8 Rf8–+) 17...Qf7 18.ab4=+) 16...Qe3= 17.Kg3 Qf4 18.Kf2 Qe3 19.Kg3 h5 (19...Qf4!? 20.Kf2 Qe3=) 20.Qc3+= Qf4 21.Kf2 Re3 22.Bd5 (22.Qa5 Qf3 23.Kg1 Nf4 24.Bf7 Kh8 25.Qh5 Nh5 26.Bh5 Qg2) 22...Rc3 23.Nc3 (23.Bc3? Qe3 24.Kg3 Nf4–+) 23...Qe3 24.Kg3 Qf4 25.Kf2 Qe3 26.Kg3 Nc4 27.Kh3 Nf4 28.Kg3 Nd5 29.Nd5 h4 30.Kh4 Qf3 31.Ne7 Kh7 32.Raf1 (32.Rhf1 Qe4 33.Kg3 Qe7–+ (33...Nb2?! 34.Rf7 Nc4 35.Nf5–+)) 32...Qe4 33.Kg3 Qe7 34.Bc1 Na3 (34...Na3 35.Ba3 Qa3 36.Kf4 b5–+) 0–1. Trokenheim,Marek – Ronneland,Daniel, corr SSKK M–184, 1994.

14.a3 Re8 15.Bc4 Bd6 16.Bf7 Qf7 17.Qf7 Kf7 18.Ng5 Kf8 19.Nh3+–.

14.a3 Re8 15.Ne5 Nd4+= 16.Qf7?? (16.Bd4 Qh4) 16...Qf7–+ 17.Nf7 Re2 (17...Ne2?! 18.ab4 Kf7 19.Ra7=+) 18.Kg3 Re3 (18...Kf7 19.Bd4 Bd6 20.Kh3+=) 19.Kf2 Rf3 20.Kg1 Ne2 0–1. Stecyk,Jozef – Migala,Andrzej, Rudnik Poland, 1994.

14.Ba3? Nd4! 15.Qb4?? (15.Bb4 Qe2 16.Kg3 Nb3; 15.Nd4? Qh4!) 15...Qe2 16.Kg3 Nf5 17.Kh3 Qf3#. Grehl.

14.Na3 Re8+= 15.Ne5 (better 15.Bb5 Na5 16.Qd1+=) 15...Ne5 16.Qh3 (16.de5?? Bc5 17.Kf1 Qh4–+) 16...Nf4 Threatening mate... how? 17.Qg3 Ne2 18.Ke2 (18.Qe5 Qh4 19.Ke2 Re5 20.Kd3 Qe4 21.Kc4 Ba3 22.Rac1 Qe2 23.Kb3 Rb5 24.Ka3 Qb2 25.Ka4 Qb4) 18...Nc4 (better 18...Nf3! 19.Qe5 Ne5 20.de5 Ba3 21.Bd4–+) 19.Kf2 Nb2 (19...Nb2 20.Rhf1 Ba3–+; 19...Na3?! 20.Qd3–+; 19...Ba3?! 20.Ba3 Qf6 21.Qf3 Qd4 22.Kg2 Qd2 23.Kg1–+) 0–1. Persson,Boerje – Grehl,Siegfried, CiF, 1989.

14.Bb5 Na5 15.Qd3 +/–.

14.Bc4 Na5 15.Qd3 Nc4 16.Nc3 Nb2 17.Qe4 Qe4 18.Ne4 Nd3 19.Kg3 Bf5 20.Kg2 (20.Nf6 gf6 21.Kg2 Re8–+) 20...Be4 21.Kg3 (21.Rhf1 Bc3 22.Rad1 Rd8–+) 21…Bd6 (21...Bd6 22.Kg2 g5–+) 0–1. Orangattackman – mrkt, internet, 2005.

14.Bc4 Na5 15.Qd3 Nc4 16.Qc4 Qe3 17.Kg3 Bd6 18.Kh3 Qf3#.

14.Bc4 Na5–/+ 15.Bf7 Kh8 16.Qd3 Qf7 17.Kg3 Bd6 18.Kf2 Nc4 19.Ba3 Na3 20.Na3 Nh4 21.Nc4 Rf8 22.Nd6 Qf3 (worse 22...cd6 23.Rhc1 Nf3 24.Ke2–+) 23.Qf3 Rf3 (23...Nf3?! 24.Kg3 cd6 25.Kh3 Nd4 26.Rad1–/+) 24.Ke2 cd6 25.Rac1 (25.Rab1 b6–+) 25...Rf7 (25...Ra3 26.Rc2–+) 26.Rc3 (26.d5 Nf3–+) 26...Bg4 27.Kd2 Rf2 28.Kc1 Ra2 29.Kb1 Ra4 30.Rf1 The mate threat is Rf8 30...Kg8 31.Rf4 Bf5 32.Kb2 g5 33.Rf1 (33.Rg3 g4 34.h3–+) 33...Rd4 34.Rc7 (34.Rf2 Rb4 35.Ka3 Rf4–+) 34...Rb4 (better 34...Rd2!? 35.Kb3 Rh2 36.Rb7–+) 35.Ka3 a5 (35...Rb5 36.Re1 Kf8 37.Ree7–+) 36.Rd1 Re4 (better 36...Rb6!? 37.Rd5–+) 37.Rd6 Threatening mate... how? 37...Re8 38.Rb7 Ra8 (38...Nf3!? 39.Ka4–+) 39.Rd5 g4 40.Re5 (40.Rbb5 Bg6 41.Ra5 Ra5 42.Ra5 Nf3–+) 40...Bg6 41.Rg5 Nf3 42.Rg4 Nh2 43.Rf4 Rf8 (43...h5 44.Rd4–+) 44.Rf8 Kf8 (44...Kf8 45.Ka4 Be4–+) 0–1. Gedigk,Detlef – Grehl,Siegfried, corr SOK–90–53, 1990.

14.Nbd2 Re8 15.Bb5 Na5 16.Qc2 +=.

14.Nbd2 Re8 15.Bb5!? a6 16.Rhe1 Ne1 17.Re1 Be6 18.Bc6 bc6.

14.Nbd2 Re8 15.Rhe1 (better 15.Bb5 Na5 16.Qc2+=) 15...Ne1 16.Re1 Nd4! 17.Nd4 (17.Bd4 Bd2) 17...Bd2 18.Rd1?? (18.Qh3 c5 19.Rb1 Be3 20.Ke1 Bd4–/+) 18...Be3–+ 19.Kg3 Qg5 20.Kh3 Re4 21.Nf5 (21.Qf7 Kf7 22.Rf1 Bf4 23.Bc1 Rd4 24.Rf4 Rf4 25.Bf4 Qf4 26.Kg2–+) 21...Qf5 22.Kg2 Rg4! 23.Bg4 Qg4 24.Kf1 Qf3 (24...Qf3 25.Ke1 Qf2) 0–1. Franke,Roland – Loffler,Arturo, corr ICCF/M, 1985.

14.Ne5 Nd4+= 15.Qf7 (15.Bd4 Qh4 16.Kg1 Qd4 17.Kf1 Nf4 18.Qh3 Nh3–+) 15...Qf7 16.Nf7 Ne2 17.Ng5 Bc5 (17...Rf8 18.Ke2 Bg4=) 18.Ke2 Nf4 (18...Re8=) 19.Kd1 Rd8 20.Kc2 (better 20.Nd2!? Bg2 21.Kc2 Bh1 22.Rh1=) 20...Bf5–/+ 21.Kb3 h6 (21...h6 22.Nc3 hg5–+) 0–1. Zschalich,Arndt – Poetzsch,Albin, corr DDR–ch M861, 1985.

14.Ne5 Ne5 15.Qh3 Nf4 16.Qe3 Qh4 17.Qg3 Ned3 18.Kf1 '??''the final mistake, not that it matters anymore' (18.Bd3 Nd3 19.Ke3 Qg3 20.hg3 Nb2–+) 18...Qg3 (better 18...Qf6 and the rest is a matter of technique 19.Bc3 Re8–+) 19.hg3 '–/+' 19...Ne2 20.Ke2 Nb2 21.Rc1 Re8 22.Kf3 (better 22.Kf1 c6 23.a3–/+) 22...Ba5 (22...Nd3 23.Rc7 Ba5 24.Rc4–+) 23.a4 (better 23.Na3!? would keep White in the game 23...Bb6 24.Rab1 Bd4 25.Rc7=+) 23...Nd3 '–+' 24.Rd1 (24.Rc4 c5! the end 25.Ra2 Bb4–+) 24...Ne1 25.Kf2 Nc2 26.Ra2 Ne3 (26...Nd4 27.Na3 Bb6 28.Kg2–+) 27.Rd3 Nd5 28.Rb2 Nb6 (28...Bb4 29.a5–+) 29.Nd2 (29.Rb5 Be1 30.Kf3 f6–/+) 29...Kf8 (29...c6 30.Kf3 Kf8 31.Ne4–/+) 30.Rb5 '=/+' 30...Bd2 31.Rd2 c6 (31...Nc4 32.Re2 Nd6 33.Rbe5=+) 32.Rb4 '=/+' 32...Rd8 (32...Nc8 33.Rb7 Nd6 34.Ra7 Ne4 35.Ke3 Nd2 36.Kd2=) 33.Kf3 (33.a5!? should be examined more closely 33...Nc8 34.Rc2=) 33...c5 'Black threatens to win material: c5xb4. Deflection: d4' 34.Rb5 (34.dc5 Rd2 Deflection Pinning) 34...cd4 (34...Rd4 Inferior is 35.Rd4 cd4 36.Rb4+–) 35.Rb4 'White threatens to win material: Rb4xd4' 35...Rd5 (better 35...d3!?–/+) 36.Rdd4 '=' 36...Rd4 (36...Rf5!? 37.Kg4 Ra5=) 37.Rd4 '+/=' 37...Ke7 '?' (better 37...a5 and Black could well hope to play on 38.Rd8 Ke7+=) 38.Rb4 '+–' 38...Ke6 (38...Kd6 39.a5 Nd7 40.Rb7+–) 39.a5 Nd7 40.Rb7 Ne5 '?' (40...a6+–) 41.Kf4 Nc6 (41...Ng6 cannot undo what has already been done 42.Ke4 f5 43.Ke3+–) 42.a6 h6 (42...g5 is not the saving move 43.Kg5 f6 44.Kf4+–) 43.Rc7 g5 44.Ke3 Kd6 45.Rf7 h5 (45...Kc5 does not improve anything 46.Rh7+–) 46.Rg7 h4 (46...g4 doesn't change the outcome of the game 47.Rh7 Kc5 48.Rh5 Kb6 49.Rh6+–) 47.g4 Ne5 48.Rg5 h3 (48...Ke6 does not save the day 49.Rg7 Nd7 50.Rh7+–) 49.Kf2 h2 (49...Nc4 50.Kg3 Na3 51.Rg7+–) 50.Kg2 Ke6 (50...Nc4+– what else?) 51.Re5 '!' 'sealing the opponent's fate' 51...Ke5 52.Kh2 Kf6 53.Kg3 Kg5 54.Kf3 Kg6 (54...Kf6 cannot change destiny 55.Ke4 Ke7 56.Ke5 Kf7 57.Kd5 Kf6 58.Kc6 Kg5 (58...Kf7 59.Kb7 Kf6 60.Ka7 Kg5 61.Kb7 Kg4 62.a7 Kg5 63.Kc6 Kh4 64.a8Q Kg3 65.Qf8 Kg4 66.Kd5 Kg3 67.Ke4 Kg2 68.Qb8 Kf1 69.Qh2 Ke1 70.Ke3 Kd1 71.Qd2) 59.Kb7 Kg4 60.Ka7 Kg5 (60...Kf4 61.Kb6 Ke4 62.Kc5 Ke3 63.a7 Kd3 64.a8Q Ke3 65.Qd5 Ke2 66.Kd4 Kf2 67.Ke4 Kg2 68.Qc5 Kh3 69.Qg1 Kh4 70.Kf4 Kh3 71.Qh1) 61.Kb6 Kh6 62.Kc5 Kg6 63.Kd5 Kf5 64.a7 Kf4 65.a8Q Kf3 66.Ke5 Kg3 67.Ke4 Kf2 68.Qg8 Ke1 69.Ke3 Kd1 70.Qc4 Ke1 71.Qe2) 55.Kf4 (55.Ke4 Kg5 56.Kd5 Kg4 57.Kc6 Kh4 58.Kb7 Kh3 59.Ka7 Kg3 60.Kb6 Kf4 61.Kc5 Ke4 62.a7 Ke5 63.a8Q Kf4 64.Qd5 Ke3 65.Qf5 Kd2 66.Kd4 Ke2 67.Qf7 Kd1 68.Kd3 Kc1 69.Qa2 Kd1 70.Qb1) 55…Kf6 1–0. Buczinski,Henryk (2200) – Jurek,P (2000), DMSl.–Klasa A Poland, 1996.

14.Rf1 Nf4 15.Bc4 Bf1 16.Bf1 Re8 =+.

14.Rg1 Re8 15.Bc4 (15.Bb5 Na5 16.Qd5 Qe3 17.Kg3–+) 15...Na5= 16.Qd3?? (better 16.Bf7 Kh8 17.Qd1=) 16...Nc4–+ 17.Qc4 (17.Qf1 Nf4 18.Kg3 Bf1 19.Rf1 Nh5 20.Kg2 Qe2 21.Rf2 Ne3 22.Kg1 Qd1 23.Ne1 Qe1 24.Rf1 Qf1) 17...Qe3 18.Kg3 Bd6 19.Kh3 0–1. Simon de Balle – marekt, ChessWorld.net, 2005.

14.Kg3 Qe2 15.Kh3 Na5! (idea Qf3#) 16.Qd1 Qb2 –+. Grehl.

14.Nbd2 Bd2+= 15.Nd2 Nd4

16.Qd3 Nf4 17.Qd4 Qe2 18.Kg3 Qg4 19.Kf2 Qg2 20.Ke3 Re8 –+. Grehl.

16.Bd4 Qh4 17.Qg3 Qd4 18.Kf1 Ne3 19.Ke1 Qa1 20.Kf2 Qh1 –+. Grehl.

16.Qh3?? Qe2–+ 17.Kg3 f5 18.Rhf1 (18.Qg2 f4! 19.Kh4 Nf5 20.Kg5 Qg2 21.Kf5 Rf8 22.Bf6 Rf6 (22...gf6?! 23.Rhg1 Qg5 24.Rg5 fg5 25.Kg5+=; 22...Qd2 23.Rhe1 Rf6 24.Ke4–+) 23.Ke5 c6 24.Kd4 Qd2 25.Kc4 b5 26.Kb3 Rd6 27.Rhc1 Rd3 28.Rc3 Qc3) 18…f4 (18...f4 19.Rf4 Nf4–+) 0–1. Oakes,Barrie – De Smet,Karl, corr TT, 1992.

16.Qh3 Qe2 17.Kg3 f5 Do you see the mate threat? 18.Qg2 (18.Rhf1 f4 19.Rf4 Nf4–+) 18…f4! (18...f4 19.Kf4 Rf8 20.Kg3 Nf5 21.Kf4 Nh6 22.Bf6 Rf6 23.Kg5 Qg2 24.Kh5 Qg4) 0–1. Ritter – Reyes,ME, corr 3GMM–40, 1996.

16.Qh3?? Qe2–+ 17.Kg3 f5 18.Qg2 f4! 19.Kh4 Nf5 20.Kg5 Qg2 21.Kf5 Rf8 22.Bf6 Rf6 23.Ke5 c6 24.Kd4 Qd2 25.Kc4 b5 26.Kb3 Rd6 27.Rhc1 Rd3 28.Rc3 Qc3.

13.Bf1!? Bc5+=

14.d4 Nd4.

14.Kg3 Qd6 15.Kh3 Nf4 16.Kh4 Bf2 17.Kg5 h6 18.Kg4 h5 19.Kg5 Qg6 20.Kf4 Qg4.

14.Kg3 Qd7

15.Qa4!?

15.Qc4 Nd4 16.Qc5?? Qg4 17.Kf2 Qf3 18.Kg1 Ne3.

15.Qc4+– Nd4?? (15...Nd4 16.Bd4 Bd6 17.Kf2 Nf4+–; better 15...Bd6 16.Kf2 Nf4+–). Hansen,K – Borrmann,Fritz, corr 3GMM–52, 1995.

15.Qc4 Nd4?? 16.Bd4 Qg4 17.Kf2 Ne1 18.Ke1 Qf3 19.Bc5 Qh1 +–.

15.Qc4 Nd4?? 16.Bd4 Qg4 17.Kf2 Nh4! 18.Bc5 (18.Qd3 Bf1! 19.Rf1 Re8!; 18.Qd5? Bf1! 19.Rf1 Re8!; 18.Qf7!? Kf7 19.Ne5 Ke8 unclear) 18...Qf3 19.Kg1 Re8 20.Nc3 Re6!

15.Qc4 Nd4?? 16.Nd4 Qg4 17.Kf2 Qf4 18.Ke2 Bg4 19.Kd3 Ne1 20.Kc3 Bb6 21.Na3 Ba5 (21...Qe4 22.Re1 Qe1 23.Bg2+–) 22.Kb3 Nf3 Black gets strong initiative 23.Qd5 Nd2 24.Kc2 c5 25.Be2 (25.Qc5 Rc8 A pinning theme) 25...Rd8 26.Qg2 (26.Qc5?! Rc8 27.Qc8 Bc8=) 26...cd4 (26...Rd4 27.Bg4 Qg4 28.Rhg1+– (28.Qb7? Nc4 29.Bc3 Na3 30.Kb3 Qh3 31.Qb8 Rd8–+)) 27.Bg4 (27.Qg4 d3 28.Kd1 de2 29.Qe2 Nc4 30.Kc2 Qf5 31.Kc1 Bd2 32.Qd2 Rd2–+) 27...d3 28.Kc1 (28.Kd1 Qa4 29.Kc1+–) 28...Ne4–/+ 29.Kb1 Nc3 30.Bc3 Bc3 31.Bd1 Qb4 32.Bb3 Qa3 (32...Ba1?! 33.Ka1 Qa3 34.Qb7=) 33.Rd1 d2 Threatening mate... how?. (33...Ba1?! 34.Ka1 Qb4 35.Rd2–/+) 34.Bf7 Kf7 35.Qb7 Kg8 36.Qb5 (36.Qb3 Qb3 37.ab3 Ba1 38.Ka1 Kf7–+) 36...Rc8 37.Qb7 Qc5 38.Qb3 Kh8 (38...Kh8 39.Rd2 Bd2–+) 0–1. Gross,Wilhelm – Grehl,Siegfried, corr SOK–91–72, 1991.

15.Qc4+/– Bd6 16.Kf2 Nf4 +/–.

13.Rg1?? Bc5–/+

14.Kf1 Qe7 15.Rg2 Bg2 16.Kg2 Qe2 17.Kh3 Qf1 18.Kh4 –+.

14.Kg3 Qd6? 15.Kh3+– Nf4 16.Kg4 h5 17.Kh4 Bf2 18.Kg5?? (better is 18.Rg3 Qd7 19.Bf7 Qf7 20.Na3 (20.Qb7 Qe7 21.Ng5 Bg3 22.hg3 Ng6 23.Kh3 Qd7 24.Kh2 Rb8=) 20...Qb3 21.ab3+=) 18...Qh6 19.Kf5 g6 (19...Ne7 20.Ke4 Qh7 21.Rg6 Qg6 22.Kf4 Qf5) 20.Ke4+/– Re8 21.Be5 Ne5 22.Ne5 Qg7?? (22...Re5 23.Ke5 Bg1 24.Bf7 Kg7–/+) 23.Bf7+– (23.Kf4?? Qf6 24.Ke4 Qf5 25.Kd5 Qe5) 23...Kh8 (23...Kf8 24.Be8 (24.Kf4 Qe5 25.Kf3 Qe2 26.Kg2 Be3 27.Kh3 Qf3 28.Rg3 Qf1 29.Rg2 Qf5 30.Kh4 Re4 31.Kg3 Qg4) 24...Bg1 25.Bd7+– (25.Kf4?! Bh2 26.Kf3 Be5+–)) 24.Be8 (24.Kf4 Qe5 25.Kf3 Qe2 26.Kg2 Be3 27.Kh3 Qf3 28.Rg3 Qf1 29.Rg2 Qf5 30.Kh4 Re4 31.Kg3 Qg4) 24...Bg1 25.Ng6! Ng6 26.Nc3 (better is 26.Qc3 Ne7 27.Na3+–) 26...Qd4 27.Kf5 Qf4 (27...Qg4 28.Kf6 Bd4 29.Kf7 Qf5) 28.Kg6+– (28.Kg6 Qg4 29.Kf6 Bd4 30.Ke7 Qg5 31.Kd7 Qd2 32.Rd1 Qc3 33.Qc3 Bc3 34.Kc7+–) 1–0. lendzior (1685) – caferamzes (1780), internet, 2013.

14.Kg3 Qd7 15.Bf7 Kh8 +/–.

14.Kg3 Bg1 15.Bc4–+.

14.d4? Nd4–+

15.Bd4 Bd4 16.Kg3 Qd6 17.Kh3 Nf4 18.Kg3 Ne2 19.Kg2 Bg1 20.Nc3 Nc3 21.Qb7 –+.

15.Nd4 Bd4 16.Bd4 Qd4 17.Kf1–+ Ne3 (better 17...Nf4 18.Ke1 Qg1 19.Kd2 Rd8 20.Kc2 Bf5 21.Kb2 Ne2–+) 18.Ke1 Nc2!! (worse 18...Qa1 19.Qe3 Qb1 20.Kf2–+) 19.Qc2 Qg1 (19...Qa1?! 20.Qd3–/+) 20.Kd2 Rd8 21.Kc3 Qd4 22.Kb3 Be6 23.Bc4 Bc4 24.Qc4 Qa1 25.Nc3 (25.Qe4 h6 26.Nc3 Rd2 27.Qe8 Kh7 28.Qe4 g6–+) 25...Rd2 26.Qc7 (26.Qa4 c6 27.Qa5–+) 26...Qb2 27.Ka4 b5! 28.Ka5 (28.Nb5 Qc2 Double attack (28...Qa2 Deflection; 28...Rh2 Zwischenzug)) 28...Qa3 (28...g5 29.Qe5 Qa3 30.Kb5 Rb2 31.Kc4 Qa6 32.Nb5 Qc6 33.Kd3 Rb5 34.Qe3–+) 29.Kb5 Rb2 30.Kc4 Qa6 31.Kc5 (31.Kd4 Qb6 32.Qb6 Rb6–+) 31…Qb6 (31...Qb6 32.Qb6 ab6 33.Kc4 Rh2–+) 0–1. Kern,Guido (2410) – Rowland,A, Hessen clubgame, 1997.

15.Nd4 Bd4 16.Bd4 Qd4 17.Kg3 Qh4 18.Kf3 Qf4# 0–1. gerotnik (2320) – pierred (2765), net–chess.com, 2014.

15.Nd4 Bd4 16.Bd4 Qh4 17.Qg3 Qd4 18.Kf1 Ne3 19.Kf2 Nc2 20.Qe3 Qe3.

15.Nd4 Qf6 16.Bf3 Qh4 (better 16...Re8 17.Rg2 Qh4 18.Rg3 Bd4 19.Qe3 Be3 20.Ke1 Qb4 21.Bc3 Bf4 22.Be2 Qc4 23.Rg7 Kf8 24.Rg2 Bg2 25.Bb4 Qb4 26.Kf2 Re2 27.Ke2 Qc4 28.Kd1 Bf3 29.Ke1 Qe2) 17.Ke2 Re8 (worse 17...Bd4 18.Bd4 (18.Bg2 Qf2 19.Kd3 Qe3 20.Kc4 Be6 21.Bd5 Bd5 22.Kd5 c6 23.Kc4 b5 24.Qb5 cb5 25.Kb5 Qd3 26.Ka5 Bb6 27.Kb4 a5 28.Ka4 Qc4 29.Ka3 Bc5; 18.Rg2 Re8 19.Kd2 Qe1 20.Kc2 Bf5 21.Qd3 Bd3 22.Kd3 Re3 23.Kc2 Bb2 24.Kb2 Rf3–+) 18...Qd4 19.Rg2 (worse 19.Bg2 Re8 20.Be4 Re4 21.Kf3 Re5 22.Rg7 Kg7 23.Qf7 Kf7 24.Kg3 Qg4 25.Kf2 Re2) 19...Re8 20.Kf1 Qa1 21.Qd3–+) 18.Kd2 (18.Kd3 Re3 19.Kc4 Bd4 20.Bd4 Be6 (worse 20...Rb3 21.ab3 b5 22.Kc5–+) 21.Bd5 Rb3 22.ab3 b5 23.Kd3 Nf4 24.Kc2 Nd5–+) 18...Qf2 (18...Bd4 19.Kc1 (19.Rg2?? Qe1 20.Kc2 Bf5 21.Qd3 Bd3 22.Kd3 Re3 23.Kc2 Bb2 24.Kb2 Rf3–+) 19...Bg1 20.Bc3–+) 19.Kd3 (19.Ne2 Be3 20.Kd1 Rd8 21.Bd5 Qf3–+) 19…Re3 (19...Re3 20.Kc4 A) 20...Qg1?! 21.Nc3 Qh2 22.Qb7= (22.Kc5? Qd6 23.Kc4 Rf3 24.Qb7 Ne3 25.Kd3 Bf5 26.Ke2 Qh2 27.Kf3 Qg2 28.Ke3 Qb7–+); B) 20...Rb3 21.ab3 Qb2 22.Kc5 Qa1 23.Bg2 Qa5 24.Kc4 c5–+) 0–1. juditfan (2330) – gerotnik (2320), net–chess.com, 2014.

13.Kg3? Qd7!?

14.Qc4 b5 15.Qb5?? (15.Ne5!? Bd6 16.Qe4+– (16.Qb5? Rb8 17.Qb8 Nb8–+)) 15...Bd6 16.Kf2 Rb8 17.Rc1 Rb5 18.Bb5 Qf5 19.Bc6 Nh4 (19...Nf4 20.Rc3 Nd3 21.Rd3 Qd3–+) 20.Re1+– Qc5 (20...Nf3 21.Bf3 Kf8 22.Ba3+=) 21.Bd4+= Qc6 (21...Qc4 22.d3 Qc6 23.Nh4+=) 22.Nh4+– g5 23.Re3 Bc5 24.Bc5 (24.Rh3?? Bd4 25.Re3 Qf6 26.Nf3 g4–+) 24...Qc5 25.Nf3 g4 26.Ng1 Qf5 27.Kg3 Bf1 (27...Qf6 28.Re8 Kg7 29.Nh3 Qf3 30.Kh4 Qh3 31.Kg5 f6 32.Kf5 Qf3 33.Ke6 Qc6 34.Kf5 Qe8 35.Kg4 Qe4 36.Kg3 Qe5 37.Kf2 Qa1–+) 28.Nc3+– h5 29.Nge2 (better 29.d4+–) 29...Bh3 30.Kh4 f6?? (30...Kh7 31.Ne4 g3 32.Ng5 Kg6 33.Rg3 Bg4–+) 31.Rg1 (31.Rb1 Kf7+–) 31...Qg5 (31...Qf2 32.Kh5 Kf7 33.a3 Qf5 34.Kh4 Qf2 35.Reg3 Qh2 36.Nf4 (36.Rg4?? Bg2) 36...Bg2 37.Kg4 Qg1 38.Rg2+– (38.Ng2?! Qf2=)) 32.Kg3 h4 (32...c5 33.Kf2 Kf7 34.Ke1+–) 33.Kf2+– Qc5 (33...Kf7+–) 34.Ke1 (34.Ke1 Kf7 35.Nf4+–) 1–0. Gross,Wilhelm – Grehl,Siegfried, corr, 1992.

14.Qc4 Bd6 15.Kf2 Nf4 16.Rg1 Bg4 17.Qc3 Bf8 18.Re1 Ne2 19.Re2 (19.Ke2?! Ne5 20.Qe5 Re8=) 19...Qf5 20.Re3 Rd8 (20...Nb4!? 21.h3 Bh3 22.Qc7 Nc2 23.Qb7 A) 23...Na1? 24.Qa8 (24.Ba1?! Rd8+=) 24...Qb5 25.Kg3 (25.Ba1?! Qf1 26.Kg3 Qg2 27.Kf4 Qg4 28.Ke5 f6 29.Kd5 Bg2+/–) 25...Qb2 26.Re8+– (26.Kh3?! Qb1 27.Re8 Qf5 28.Kg2 Qg6 29.Kf1 Qd3 30.Ke1 Qa3+=); B) 23...Qg4=) 21.Kg1 Bh3 22.Kh1 Qg4 23.Ne1 Bf1 24.Rg3 Qd4 25.Nf3 Qc3 26.Nc3 Bc4 27.Ne4 f5 28.Nf6 Kh8 29.Nh5 Bd5 30.Rag1 Rd7 31.R1g2 f4 32.Nf4 Ba2 33.Nh5 h6 34.Ng7 Kh7 35.Ne8 Rf7 36.Rg8 (36.Rg8 Nd4 37.Bd4 Bg7 38.Nf6 Bf6 39.Bf6 Rf6 40.R2g7) 1–0. Psion – Psion, 4 min/Zug, 1991.

14.Qc4 Re8 15.Bf1 Bd6 16.Kf2 Nf4 +/–.

14.Ne5 Bd6 15.d4 (15.Qb7 Rb8 16.Qb8 Nb8–+) 15...Ne5 16.de5 Be7 The mate threat is Bh4 17.e6 Be6 18.Qd3 (18.Qb5 Bh4 19.Kg2 Bd5 20.Qd5 Qd5 21.Bf3 Qg5 22.Kh3 Qh6–+) 18...Bd5= Do you see the mate threat? 19.h4?? (better 19.Kf2=) 19...Qd6–+ 20.Kf2 Nf4 (20...Nf4 21.Qg3 Qb6 22.Ke1 Qb2–+; 20...Bh4?! 21.Rh4 Nh4 22.Qc3–+) 0–1. Seifert,J – Nebe,Lutz, corr SOK–91–69, 1991.

14.Ng1 Bd6 15.Kf2 Bc5 16.Kg3 Bg1 17.Rg1 Qd6 18.Kh3 Nf4 19.Kg4 Ne2. Grehl, Gross.

14.Ng5 Bd6 15.Kf2 Qf5 16.Nf3 (16.Bf3 Bc5 17.Ke2 Qg5) 16...Bc5 17.Kf1 Nf4 18.Ke1 Re8. Grehl, Gross.

12.Kf2 Nh4

13.Rc1 A) 13...Be6 A1) 14.Qe3 Bd6 (14...Bd5 15.Rg1 Nf5 16.Qf4 Be6 17.Kg2 Bd6 18.Qe4+–; 14...Ba5 15.d4 Bb6 16.Rd1 Qf6 17.Nbd2 Nf5 18.Ne4+–; 14...Nf5 15.Qe4 Ba5 16.Nc3 Nfd4 17.Nd4 Nd4 18.Qe5+–) 15.Kg1 Bd5 16.Rf1 Nb4 17.Na3 Bf3 18.Bf3+=; A2) 14.Qd1 Nf3 (14...Ba5; 14...Bd6; 14...Bd5; 14...Qe7; 14...a6; 14...Nf5; 14...Ng6; 14...Rb8) 15.Bf3 Qh4 16.Kg2 Bd6 17.Qg1 Qh3 18.Kf2=; A3) 14.Qc2 Nf3 (14...Bd5) 15.Bf3 Qh4 16.Kg1 Bd6 17.d3 Nd4 18.Bd4=; A4) 14.Qd3 Qd3 (14...Nf3 15.Qf3 Bd2 16.Nd2 Qd2 17.Bc3 Qd6 18.Qg3+–; 14...Bd5 15.a3 Nf3 16.Bf3 Qh4 17.Kg1 Bf3 18.Qf3+–) 15.Bd3 Nf3 16.Kf3 Rd8 17.Be4 Bd2 18.Nd2+–; B) 13...Nf3 14.Qf3 Nd4 15.Qh5 Be6 16.Bc3 Qf6 17.Qf3 Qe5 18.Bd1–/+.

13.Qc4 Nf3 14.Bf3 Be6 15.Qf4 Bd6 16.Qe4 Bc5 17.Ke2 Nd4 18.Kd1+=.

13.Bc4 Bc5 14.Kf1 (14.Ke2 Bg4 15.Bf7 Kh8 16.Bd5 Nf3 17.Bf3 Nd4 18.Bd4–+) 14...Nd4 15.Nd4 Bd4 16.Bf7 Kh8 17.Bd4 Qd4 18.Qe3–/+.

13.Qe3 A) 13...Nf5 A1) 14.Qf4 Bd7 15.Rf1 Bd6 16.Qc4 Be6 17.Qb5 Nb4 18.Nc3+=; A2) 14.Qe4 Be6 (14...Bc5 15.Kg2 Nfd4 16.Bd4 Nd4 17.Nc3 Bd7 18.Nd4+–; 14...a6 15.Rc1 Bd6 16.Bc4 Be7 17.Qd3 Nd6 18.Bd5+–; 14...Nd6 15.Qf4 Nf5 16.Kg2 Bd6 17.Qe4 Nfe7 18.Re1+–; 14...Qd7 15.Rc1 Be7 16.Ne5 Ne5 17.Be5 c6 18.Rf1+–; 14...Rb8 15.Rf1 Be6 16.Kg2 Nfd4 17.Bd4 Bd5 18.Qd3+– 0.94/9; 14...Kh8 15.Rc1 Be7 16.Ne5 Ne5 17.Be5 c6 18.Kg1+–) 15.Rc1 Ba5 16.Nc3 Nfd4 17.Nd4 Nd4 18.Kf1+–; A3) 14.Qd3 Qe7 (14...Nd6 15.Re1 Bf5 16.Qe3 Bc5 17.d4 Bb4 18.Nbd2+–; 14...Bc5 15.Kg2 Nfd4 16.Rc1 Bf5 17.Qe3 Bb6 18.Bc4+–; 14...Be6+– 15.Qd8 Rd8 16.Rc1 Bd5 17.a3 Bd6 18.Re1+=; 14...Bd6 15.Re1 Be6 16.Kg2 Bf4 17.Qe4 Nh4 18.Kh1+–; 14...Qe8 15.Re1 Be6 16.a3 Bc5 17.Kg2 Rd8 18.Qb5+–) 15.Kg2 Bd6 16.a3 Nh4 17.Nh4 Qh4 18.Nc3+=; A4) 14.Qg5 Be7 (14...Bc5 15.Kg2 Qg5 16.Ng5 Nh4 17.Kg3 Nf5 18.Kf4+–; 14...Be6 15.Qd8 Rd8 16.Rc1 Bd5 17.Ne5 Ncd4 18.Nc3+–; 14...Qg5 15.Ng5 Be7 16.Nf3 Bc5 17.Kg2 Be6 18.Rc1+–; 14...Qd6 15.Nc3 h6 16.Qg2 Bc5 17.Kf1 Bb6 18.Rc1+–) 15.Qf4 Bd6 16.Qe4 Be6 17.Kg2 Qd7 18.Bb5+–; B) 13...Be6 B1) 14.Re1 Bd5 (14...b6 15.Rd1 Bd5 16.Rg1 Ng6 17.a3 Bf3 18.ab4+–; 14...Nf3 15.Bf3 Qh4 16.Ke2 Re8 17.Kd1 Bd7 18.Qe8+–; 14...Nf5 15.Qd3 Bc5 16.Kf1 Nfd4 17.Nd4 Qh4 18.Rc1+=; 14...Ba5 15.Rd1 Nb4 16.Na3 Bb6 17.d4 Ba2 18.Nh4+=) 15.Kf1 Be7 16.Nc3 Nf3 17.Nd5 Nh2 18.Kg1=; B2) 14.Rf1 Bd5 (14...Ba5 15.d4 Bb6 16.Rd1 Nf5 17.Qf4 Qf6 18.Na3+–; 14...Bh3 15.Rc1 Bg4 16.Nh4 Qh4 17.Qg3 Qg3 18.hg3+– 1.28/10; 14...Nf5 15.Qf4 Bd6 16.Qe4 Qd7 17.Bc4 Re8 18.Be6+=; 14...Qe7 15.Kg1 Nf5 16.Qe4 Re8 17.Nc3 Qf6 18.Qf4+–) 15.a3 Nf3 16.Bf3 Qh4 17.Kg1 Bc5 18.Qc5=; C) 13...Bg4 14.Rf1 (14.Rg1; 14.Rc1; 14.Qg5; 14.Nh4) 14...Bf3 (14...Bh3 15.Rc1 Bg4 16.Nh4 Qh4 17.Qg3 Qg3 18.hg3+–; 14...Nf3 15.Bf3 Bf3 16.Qf3 Nd4 17.Qb7 Nc2 18.Qe4+–; 14...Nf5 15.Qe4 Bh3 16.Rc1 Rb8 17.Ne5 Qd6 18.Bf1+–; 14...Bd6 15.Qc3 Nf5 16.Kg1 Qe7 17.Qc4 Bc5 18.Kh1+–) 15.Bf3 Qd6 16.Ke1 Nf3 17.Rf3 Bc5 18.Qe2+–; D) 13...Bd6 14.Qc3 (14.Rg1) 14...Nf5 (14...Bf8 15.Rg1 Ng6 16.Bb5 Nb4 17.a3 Nd5 18.Qd4+–) 15.Rg1 Nfd4 16.a3 Qf6 17.Qe3 Be5 18.Rg5+–; E) 13...a6 14.Re1 (14.Nh4; 14.Qg5; 14.Nc3) 14...Be6 (14...Nf5 15.Qf4 Bd6 16.Ne5 Ne5 17.Be5 Be5 18.Qe5+–; 14...Bg4 15.Qg5 Bc5 16.Kg3 Qg5 17.Ng5 Be2 18.Re2+–; 14...Nf3 15.Bf3 Qh4 16.Kg2 Be6 17.Bc6 bc6 18.Be5+–) 15.Kg1 Nf5 16.Qe4 Bc5 17.Kh1 Nfd4 18.Bd4+–; F) 13...Nf3 14.Bf3 Qh4 15.Ke2 Bd7 16.Kd1 Re8 17.Qd3 Ne5 18.Be5=.

13.Rg1 Bc5 A) 14.Kf1 Bh3 (14...Bg1 15.Qc3 Bd4 16.Nd4 Qg5 17.Nc6 Qg2 18.Ke1 Qg1–/+) 15.Ke1 Nf3 16.Qf3 Bg1 17.Qh3 Qd5= (17...Bd4 18.Nc3=) 18.Nc3–+; B) 14.d4 Nf3 15.dc5 Ng1 16.Kg1 Nd4 17.Qe3 Nc2 18.Qg3=+.

13.Rg1 Nf5 14.Kf1 (14.Re1 Be6 15.Qd3 Bc5 16.Kf1 Nfd4 17.Nd4 Qh4 18.Rc1+=; 14.Rf1 Qe7 (14...Be6 15.Qd3 Bc5 16.Kg2 Ncd4 17.Bd4 Nd4 18.Nc3+–; 14...Qd6 15.Qd3 Bc5 16.Kg2 Qh6 17.Qb3 b6 18.Re1+–) 15.Qc4 Bc5 16.Ke1 Be6 17.Qe4 Re8 18.Nc3+=; 14.Kg2 Qe7 (14...Bc5; 14...Nfd4; 14...Be6; 14...Ncd4; 14...Bd6; 14...Qd7) 15.Bb5 Bc5 16.Rc1 Be6 17.Qc3 Bd4 18.Nd4=; 14.Rc1 Be6 15.Qc2 Ba5 16.Qe4 Bb6 17.Kg2 Ncd4 18.Bd4+–; 14.Ke1 Be6 (14...Qe7 15.Qd3 Be6 16.Ng5 Bc5 17.Rg4 Rd8 18.Qh3+–; 14...Bc5 15.Rf1 Qe7 16.Kd1 Rb8 17.Qc3 Be6 18.Re1+–; 14...a5 15.Bc4 a4 16.Qd3 Qd3 17.Bd3 g6 18.Kd1+–; 14...a6 15.Bd3 g6 16.Bf5 Bf5 17.a3 Bc5 18.Qc3+–; 14...Rb8 15.Qc2 Qe7 16.Nc3 Ncd4 17.Nd4 Qh4 18.Rg3+–; 14...Qd6 15.Nc3 Ncd4 16.Nd4 Nd4 17.Nb5 Nf3 18.Kf2+–) 15.Qd3 Bc5 16.Rg5 Bd4 17.Bc3 Qf6 18.Qe4+–; 14.Qc4 Be6 (14...Qd6; 14...a6; 14...Rb8; 14...Qe7; 14...a5; 14...Bd7; 14...Bd6; 14...Ba5) 15.Qb5 a6 16.Qb7 Bc5 17.Kf1 Bd5 18.Bf6=; 14.Qc2 Nfd4 (14...Ncd4; 14...Qe7) 15.Qd3 Bc5 16.Nd4 Bf5 17.Qf5 Bd4 18.Bd4+=) 14...Qe7 (14...Bc5 15.Rg2 Nfd4 16.Nd4 Bd4 17.Bd4 Nd4= 18.Qc3+–; 14...Be6 15.Qd3 Bc5 16.Rg2 Nfd4 17.Ng5 Bf5 18.Qc3+=) 15.Bd3+– Nfd4 (better 15...g6+– 16.Qc2 Bc5 17.Qc3 Ncd4 18.a3+–) 16.Bd4?? (better 16.Nd4 Bh3 17.Rg2 Bg2 (17...Qf6 18.Nf5+–) 18.Kg2+–) 16...Bh3 17.Kf2 Nd4 18.Bh7 (18.Nd4?! Qh4 19.Ke2 Bg4 20.Kf1 Bh3 21.Ke2 Bg4 22.Kf1 Bh3 23.Ke2=) 18...Kh8 19.Nd4 Qh4 20.Rg3 (20.Ke3 Re8 21.Kd3 Qh7 22.Kc4=+) 20...Bc5 21.Qf7?? (better 21.Ke2 Bg4 22.Rg4 Qg4 23.Nf3+=) 21…Rf8 (21...Rf8 22.Qf8 Bf8–/+; better 21...Bd4!? 22.Ke2 A) 22...Kh7?! 23.Qf3 Be6 A1) 24.Qb7?? Re8 (24...Ba1?! 25.Qa8 Qh2 26.Qg2 Qg2 27.Rg2=+; 24...Qh2 25.Kd1 Ba1 26.Qe4 g6 27.Qg6 Kh8 28.Rg5=) 25.Kd1 Ba1–+; A2) 24.Nc3=+; B) 22...Qh7?! 23.Nc3=+; C) 22...Ba1–+) 0–1. hal1958 – black_kinight, playchess.de, 2002.

13.Nh4 Nd4 14.Bd4 (14.Qg3 Bd6 15.Qg7 Kg7 16.Bd4 Kf8 17.Nf3 Bg4 18.Be3=+) 14...Qh4 (14...Qd4 15.Ke1 a5 16.Nc3 Qh4 17.Kd1 Be6 18.Qb2+–) 15.Kg2 Qd4 16.Nc3 Bd7 17.Rhf1 Bc6 18.Kh3=.

13.Nh4 Qh4 14.Qg3+– Bc5 15.Ke1 Qh6 (15...Qg3 16.hg3 Be6 17.Nc3+–) 16.Rf1 (16.Qc7?? Bd6 17.Qd6 Qd6–+) 16...Be6 (16...Bd6 17.Qf2 Be6 18.Rg1+–) 17.Qc7+– Re8 18.Nc3 (18.Qb7 Bc4 19.Nc3 Qh5 20.Qc6 Re2 21.Kd1 Rf2 22.Kc2 Qf5 (worse 22...Bf1 23.Qe8 Bf8 24.Ba3+–) 23.Ne4 Rf1 (worse 23...Bf1 24.Qe8 Bf8 25.Ba3+–) 24.Rf1 Bf1 25.Qa8 Bf8=+) 18...Bb6 19.Qf4 Qg6 20.Qe4 (20.Qg3 Qg3 21.hg3 Nd4+–) 20...Qg5 (better 20...Nd4 21.Qg6 hg6+–) 21.h4?? (better 21.Nb5+–) 21...Qg3–+ 22.Kd1 Rd8?? (better 22...Bb3! 23.Kc1 Re4 24.Ne4 Qg2 25.ab3 Qe2–+ (25...Qe4?! 26.Bf3 Qh4 27.Bd5–+)) 23.Qf4 (better 23.h5!?+–) 23...Qf4+– 24.Rf4 Be3 25.Rf3 Rd2 26.Ke1 Rb2 27.Re3 h6 28.Rb1 (better 28.Bd3!?+–) 28...Rb1+= 29.Nb1 Nb4 (better 29...Ba2!? 30.Nd2 Kf8+–) 30.Kd2 Ba2 31.Re8 Kh7 32.Nc3 Be6 33.Bd3 (better 33.Re7+–) 33...Nd3+– 34.Kd3 g5 (better 34...a6+–) 35.hg5+– hg5 36.Ne2?? (better 36.Re7+–) 36...Kg6= 37.Re7 Bd5 38.Nd4 (38.Nc3 Bc6+=) 38...f5= 39.Re5 Be4 40.Ke3 Kf6 41.Ra5 (41.Re6 Kf7=) 41...a6 42.Ne2 Bc6 43.Nd4 Bd7 ½–½. Niephaus,Friedel – Hoehne,T, Hofheim, 1995.

11.Qc1 Bf5

12.Kf2 Nc2 13.Rd1 Qe7 14.Nc3 (14.a3 Re8 15.Bf1 Bc5 16.d4 N6d4 17.Rd4 Nd4 18.Nd4 Bd4 19.Bd4 Qh4 20.g3 Qd4 21.Kg2 Qa1–+) 14...Rd8 (14...Re8 15.Re1=) 15.Na4 (15.g4 Bc3 16.dc3 Re8+–) 15...Na1+= 16.Ba1 (< 16.Qa1 Bc2 17.Nc3 Bd1 18.Qd1 Ne5–/+) 16...Re8 17.Re1 Qf8 18.Kg1 Be4 19.Nc3 Qc5 20.Kf1 Ba3 21.Bb2 Bb2 22.Qb2 Bf3 23.Bf3 Re1 24.Ke1 Qg1 25.Ke2 Nd4 26.Kd3 Nf3 27.gf3 Qf1 28.Ke4 Qe1 29.Kf4 b6 (29...c5 30.Ne4 Qh4 31.Ke3 Qe1 32.Kd3 Qf1 33.Kc2 Qc4 34.Nc3+/–) 30.Ne4 (better is 30.d4!?+/–) 30...Qh4= 31.Ke3 Qh6 32.Kd3 Qf4 (< 32...Qh2 33.Qb5 Kf8 34.Qd5+/–) 33.Qd4 Qf3 34.Kc2 h6 35.Nc3 Qf5 36.Qd3 Qf4 37.Qg3 Qf5 38.Kb2 Qd7 39.Qg2 c6 40.Kc2 (40.d4 g5=) 40...g6 41.Qe4 Kg7 42.Qe5 f6 43.Qf4 g5 44.Qe4 f5 45.Qe5 Kg6 46.Ne2 (46.d4 f4=+) 46...f4–/+ 47.Nd4 c5 48.Ne6 (48.Qe4 Kf6 49.Nc6 Qf7=+) 48...Qf7 (48...Qa4 49.Kb2–/+) 49.Kd1 Qf6 50.Qe4 Kf7 51.Nc7 Qg6 52.Qe8 Kg7 53.Qe7 Qf7 54.Ne6 Kg8 55.Qd8 Kh7 56.Qd3 ½–½. Bungo,G – Karlsson,Lars, corr ICCF cp, 1994.

11.Qc1 Ng2

12.Kf1 Bh3 +/–.

12.Kf2 Nf4

13.Qc4 Qd6 14.Ng5 Qc5 15.Qc5 Bc5 16.Kf3 Ne2 17.Ke2 Bg4 18.Kf1 Re8 +=.

13.d4 Bd6 14.Re1 (14.h4).

13.d4 Ne2+= 14.Ke2 Bg4 15.Qf4 Bf3 (15...Qh4 16.Qe3+=) 16.Kf3+– (16.Qf3?? Nd4 17.Bd4 Qd4–+) 16...Qd5 17.Qe4 Qh5 18.Kf2 f5 (18...Rd8 19.a3 Be7 20.Nd2+=) 19.Qd5 (19.Qf3 Qh4 20.Kg2 Rd8+=) 19...Kh8 20.Na3?? (better 20.Qf3 Qh4 21.Qg3+–) 20...Re8–/+ 21.Qf3 Qh4 22.Kg2? (22.Qg3 Qe4 23.Qf3 Qf3 24.Kf3 Ba3 25.Ba3 Nd4 26.Kf2 Nc2+=) 22...Nd4?? (better 22...Ba3 23.Rhb1 Bd6–+) 23.Bd4=+ Qd4 24.Rhf1 (better 24.Nb5!? Qc4 25.Na3 (25.Na7 Re2 26.Kh3 g5 27.Qe2 Qe2 28.Rag1 g4 29.Kh4 Be7 30.Kh5 g3 31.Kh6 Qe3 32.Kh5 Qg5) 25...Ba3 26.Rhe1 Qc2 27.Kf1 Re1 28.Re1–+) 24...Qb2–+ 25.Kh3 (25.Kh1 Re2 (25...Ba3 26.Rab1 Qa2 27.Ra1+=) 26.Rad1 Rh2 27.Kg1 g5 28.Rd8 Kg7 29.Rd7 Kh6 30.Rh7 Kh7 31.Qf5 Kh6 32.Qe6 Kh5 33.Qf7 Kh4 34.Qh7 Kg4 35.Qf5 Kh5 36.Qh7 Kg4 37.Qf5 Kh5 38.Qh7 Kg4=) 25...Bd6 Threatening mate: Qxh2 (25...Qa3?! 26.Qa3 Ba3 27.Rf5–/+; 25...Ba3 26.Rab1 Qd2 27.Rb7–+) 26.Nc2 Qf6?? (better 26...Qc2 27.Rf2 Qc4–+) 27.Rf2 Qh6 28.Kg2 Qh2 29.Kf1 Qh4 30.Re1 Do you see the mate threat? (30.Qb7? Bc5 31.Qf3 Bf2 (31...Qf2?! 32.Qf2 Bf2 33.Kf2–/+) 32.Qf2 Qh1 33.Qg1 Qh3 34.Qg2 Qg2 35.Kg2 Re2 36.Kf3 Rc2–+) 30...Rf8 31.Rfe2 (31.Re6 Bc5 32.Rfe2 Qg4 33.Qg4 fg4 34.Kg2 b6=) 31...h6 (31...b5 32.Qc6=) 32.Re8 (32.Qb7 Qh3 33.Qg2 Qg2 34.Kg2 f4+=) 32...Qc4=+ 33.Qe2 (33.R8e2!?=+) 33...Qf4–/+ 34.Qf2 Qc4 (34...Qf2 35.Kf2 Re8 36.Re8 Kh7 37.Ne3=) 35.R8e2 (35.Qe2 Qa2 36.Rf8 Bf8=+) 35...f4 (35...Qa2 36.Qf3=+) 36.Qd4 (36.Qf3!?=) 36...Qb5 37.Qf2?? (better 37.a4 Qh5 38.Rg2–/+ (38.Qa7?? Bc5 39.Qc5 Qc5–+)) 37...f3–+ 38.Kg1 Black now must not overlook the idea Rd2 38...Qg5 39.Kh1 Qh5 40.Kg1 (40.Qh2 Bh2 41.Rh2–+) 40...Qg4 41.Kf1 fe2 (41...fe2 42.Re2 Qh3 43.Kg1 Bh2 44.Kh1 Bg3 45.Kg1 Bf2 46.Rf2 Qg4 47.Kf1 Qc4 48.Kg2 Rf2 49.Kf2 Qc2 50.Ke3 h5–+; better 41...Bh2! 42.Rc1 fe2 43.Ke1–+) 0–1. Engelhardt,Erhard (1700) – Rollwitz,Juergen (1915), Berliner Sommer, 1995.

13.Re1 Ne2 14.Re2 Be6 +/–.

12.Kf2 Bh3

13.Ba6 Na5 (13...Nf4; 13...ba6; 13...Qd6; 13...Rb8) A) 14.Bc3 ba6 (14...c5 15.Bf1 Nf4 16.Bb4 cb4 17.d4 Qf6 18.Qe3+–) 15.Bb4 Nf4 16.Qc3 Nd3 17.Kg3 Qc8 18.Qd4=; B) 14.Bf1 Nf4 15.d3 Nd3 16.Bd3 Qd3 17.Rg1 Re8 18.Rg7+=.

13.Bb5 Nf4 14.Rg1 g6 15.a3 Qd5 16.Qc4 Qc4 17.Bc4 Bd6 18.d4+–.

13.d4 Qd5 A) 14.a3 Be7 (14...Bd6 15.Qc4 Qc4 16.Bc4 Nf4 17.Bc1 Re8 18.Ng5+–) 15.Rg1 Qe4 16.Qc3 Re8 17.Bd1 Nf4 18.Rg3–/+; B) 14.Bd3 Re8 (14...Nd4) 15.Qg5 Qe6 16.Bb5 f6 17.Qc1 Ne3 18.Rg1+=; C) 14.Rd1 Re8 15.Nc3 Qd7 16.a3 Bd6 17.Rd3 Bf4 18.Qg1=; D) 14.Qg5 Qe4 15.Nbd2 Bd2 16.Qd2 Nf4 17.Rhe1 Bg4 18.Rad1+=; E) 14.Bc3 Re8 (14...Bd6; 14...Be7) 15.Rg1 Bd6 16.Bd1 Ne3 17.Qe3 Re3 18.Ke3=+; F) 14.Rg1 Re8 15.Bc4 Qf5 16.Nbd2 Ne3 17.Bb3 Bg4 18.Rg3–/+; G) 14.Nc3 Qf5 15.Rd1 Nf4 16.Qe3 Kf8 17.Qe4 Qe4 18.Ne4+–.

13.d4 Qd6 14.a3 Ba5 15.Nc3–/+.

13.d4 Qe7 14.Bd3 (14.Bf1 Be1 15.Kg1=+) 14...Nh4 (better 14...Bd6!? 15.Qg5 Qd7=) 15.Qg5+–. Veer,Willem – Nebe,Lutz, corr (year?).

13.Bf1 Nf4 14.Rg1 g6 15.d4 Bf1 16.Qf4 Bh3 17.Nbd2 Qd6 18.Qh6 Bd2 19.Qd2 Rd8 20.Qh6 Bf5?? 21.d5! Qc5 22.Kg3 Qd6 23.Kg2 +–.

13.Rg1 Qe7 14.Ba3 Re8 (better 14...Nd4! 15.Qc4 Ba3 16.Na3 Rd8= (worse 16...Ne2 17.Qe2 Qa3 18.Qe4=) 17.Nb5 Nf3 18.Rg2–/+; 14...Nf4 15.Bc4 Bf5 16.Re1 Qc5 17.Re3 Be6 18.Bf1+=) 15.Bb5 (15.Bc4 Nf4 16.Bb4 Qb4 17.Qc3 Qc5 18.d4+–) 15...Ne5 (15...Nd4 16.Rg2 Nb5 17.Rg3 Na3 18.Rh3=) 16.Rg2 Bg2 (16...Qf6 17.Qd1 (17.Be8?? Qf3 18.Kg1 Qg2) 17...Nf3 18.Be8 (18.Bb4?? Qd4 19.Kf3 Qe4 20.Kg3 Qg2 21.Kh4 Re4 22.Qg4 Qg4) 18...Nh4 19.Kg3 Nf5 20.Kf3 Nh4 21.Kg3 Nf5 22.Kf3 Nh4 23.Kg3=) 17.Kg2 Nf3 (17...c6 18.Bb4+=) 18.Be8 (18.Kf3 Qf6 19.Kg2 Qg5 20.Kh1 Qb5–+) 18...Qe2 19.Kg3 h5 20.Bf7 (20.Bb4 h4 21.Kf4 g5 22.Kg4 Qe4 23.Kh5 Qg6 24.Kg4 Ne5 25.Kh3 Qf5 26.Kg2 h3 27.Kg1 Qg4 28.Kf1 Qf3 29.Kg1 Qg2) 20...Kf7 21.Qc7 Kg6 22.Qb7?? (better 22.Qd7 Ng5 23.h4 (23.Qb7 h4 24.Kh4 Qh2 25.Kg4 Qh3 26.Kf4 Ne6 27.Ke4 Nc5 28.Kd5 Qd3 29.Kc6 Qe4 30.Kb5 Qb7 31.Kc4 Qe4 32.d4 Qd3 33.Kb4 Qd4 34.Kb5 a6 35.Kc6 Nd3–+) 23...Qe1 24.Kg2 Qe2 25.Kg3 Qe1 26.Kg2 Qe2 27.Kg3 Qe1=) 22…Qh2–+ (22...Qh2 23.Kf3 Qh1 24.Ke3 Qb7 25.Bb4 Qb4–+) 0–1. Tilp,Andreas – Hammerschmidt,Volker, corr DDR, 1988.

13.Rg1 Qe7 14.Bc4 b5 15.Bb5 (15.Rg2?! Bg2 16.Kg2 bc4 17.Qc4 Qd7+/–) 15...Bc5 16.d4 Nd4 17.Nd4 (17.Rg2 Ne2 18.Kf1 Nc1–+) 17...Qh4 18.Ke2 Qe4 19.Kf2 Bd4 20.Bd4 Qd4 21.Kg3 Qg4 22.Kf2 Qf5 23.Kg3 –+.

13.Rg1 Qe7 14.d4 Bd6 15.Qg5 f6+/– 16.Qc1 Nf4 17.Re1 Qd7 18.Ba3 +/–.

13.Rg1 Qe7 14.d4 Re8

15.Bb5 a6 16.Bc6 (16.Rg2?! Bg2 17.Kg2 ab5=+) 16...bc6 17.Nc3+– (17.Qc6 Be1 18.Re1 Ne1 19.Qe8 Qe8 20.Ne1 Qb5–+).

15.Bb5 Ne5! 16.Be8? Nd3.

15.Bc4 Nd4 16.Bd4 Bc5 17.Bf7.

15.Bc4 Ne3 16.Bb5 +–.

15.Bc4 Ne5 16.de5.

15.Bd3 Be1? 16.Re1+– (16.Ne1 Qh4 17.Kf3 Ne1 18.Qe1 Re1 (worse 18...Qe1 19.Re1 Re1 20.Bb5+=) 19.Re1 Qe1–+) 16...Ne1 17.Qe1 (worse 17.Ne1 Qh4 18.Kf3 Re1–/+ (worse 18...Qe1 19.Qe1 Re1 20.Bb5+=)) 17...Qd7 18.Qd1 (18.Qc3 Qg4 19.Ne5 Qh4 20.Kf3 Be6+–) 18...Nb4 19.Nc3 (19.Bc4 b5 20.Be2 Nd5+–) 19...Nd3 20.Qd3 Qg4 (20...Bf5 21.Qc4+–) 21.Rg1 (21.Rg1 Qf5 22.Qf5 Bf5 23.Nd5+–) 1–0. Woelfelschneider,Peter – Guenther,Klaus, CiF, 1990.

15.Bd3 Ne3? 16.Nc3?? Ng4 17.Rg4 (17.Kg3 Qd6 18.Kh3 Nf2 19.Kg2 Nd3 20.Qd2 Re2 21.Qe2 Nf4 22.Kf2 Ne2 23.Ne2+=) 17...Bg4= 18.Qf4 Bf3 19.Kf3 (19.Qf3 Nd4 20.Bh7 Kh7 21.Qd3 Kg8–+) 19...Bd6 (19...Qd7 20.Rd1=) 20.Nd5 Bf4 (20...Qe6 21.Qf5 Qf5 22.Bf5+=) 21.Ne7+= Ne7 22.Kf4 Nd5 23.Kg4 g6 24.Rg1 Kg7 25.Bc1 Nb4 26.Bc4 (26.Bb1 f5 27.Kf3 Kf7+=) 26...Nc2 (26...Re4 27.Kf3 f5 28.Bf4+=) 27.Kf4 (27.Bf4 f5 28.Kg3 Nd4+=) 27...f5 28.Bd3 (better 28.Bd5!?+=) 28...Nd4 29.Bb2 c5 30.Bc3 (30.Bf5 Rf8 31.Bd4 cd4 32.Ke4 Rf5 33.Rg2–+) 30...Kf6 31.h4 h6 32.a4 b6 33.Rg2 a6 (better 33...Re7–/+) 34.Re2? (better 34.Bd4 cd4 35.Ba6 Re4 36.Kg3 Re3 37.Kh2=+) 34...g5–+ 35.Kg3 Re2 36.Be2 (better 36.Bd4 cd4 37.hg5 hg5 38.Be2–+) 36...Ke5 (better 36...b5!?–+) 37.hg5–/+ hg5 38.Ba6 Ke4 39.Kf2 g4 40.a5 (40.Bb7 Kd3 41.Bd4 cd4–/+) 40...ba5 41.Ba5 (41.Bb7 Kd3 42.Ba5 f4–+) 41...f4–+ 42.Bc4 (42.Bb6 g3 43.Kg2 Kd5–/+) 42...Nc2 43.Bc7 g3 44.Kg1 Ne3 45.Ba2 (45.Bb5 c4–+) 45...c4 46.Bb1 Kf3 Black intends g2 47.Ba5 (47.Be5 g2–+) 47...g2 48.Bg6 (48.Bc3 Ke2 49.Be4 f3 50.Bf3 Kf3–+) 48...Ke2 49.Bh5 f3 50.Bc3 Nd1 51.Bd4 c3 52.Bg6 Ne3 53.Bh5 c2 54.Bb2 Nd1 55.Bc1 Nf2 (55...Nf2 56.Bg6 Nh3 57.Kh2 g1Q 58.Kh3 Qc1 59.Bd3 Kd3 60.Kg4 f2 61.Kf5 f1Q 62.Ke6 Qh6 63.Kd7 Qf7 64.Kd8 Qhf8) 0–1. Schuehler,Ernst – Salaske,Peter, corr FD90/01/0, 1989.

15.Bd3 Ne3 16.d5! Nd5 17.Bh7.

15.Bd3 Ne3 16.d5! Nf5 (16...Nd5 17.Bh7 Demolishes the pawn shield) 17.dc6?? (17.Bg7 Ng7 18.dc6 Bc5 19.Kg3 Bg1 20.Qg1+– (worse 20.Kh3 Qe6 21.Kg3 Nh5 22.Kh4 Bf2 23.Kh5 Qh3 24.Kg5 Qf3=; 20.Ng1 Bf5 21.Nf3 Bd3–/+)) 17…Bc5+= (17...Bc5 18.Qc5 Qc5 19.Nd4 Nd4–+) 0–1. Milligan,Bernard – Svensson,Jan, corr 3GMM–13, 1995.

15.Bd3 Ne3? 16.d5 Ng4 17.Rg4 Bg4 18.dc6 +–.

15.Bd3 Ne5! 16.de5 Bc5 17.Kg3 Bg1.

15.Bd3 Qf6 16.Nbd2 Nf4+–.

15.Bd3 Qf6 16.d5 Ne5! 17.Be5 Re5 18.Qc7 Rd5 19.Qb8 Rd8 –+. Adam.

15.Bd3 Qf6 16.Rg2 Be1 17.Qe1 Re1 18.Rg3 +=.

15.Bd3 Qf6 16.Rg2 Be1 17.Kg1 Qf3 –/+.

15.Bd3 Qf6 16.Qg5?? Be1+– 17.Re1 Ne1 18.Bh7 Kh7 Do you see the mate threat? 19.Qh5 (19.Qf6 Nd3 20.Kg3 gf6 21.Kh3 Nb2 22.Nbd2–+) 19...Kg8 20.Bc3 (20.Qh3 Nd3 21.Kg1 Qg6 22.Qg3 Qg3 23.hg3 Nb2 24.Nbd2–+) 20...Nd3 21.Kg1 Nd4! Threatening mate: Ne2. 22.Nbd2 (22.Nd4 A deflection 22...Re1 The nicest combinations are those leading to mate) 22...Ne2 23.Kh1 Nf2 0–1. Frenzel,Lothar – Nebe,Lutz, corr SOK–89–40, 1989.

15.Bd3 Nh4?? 16.Qg5 f6?? 17.Qf4 Bd6 18.Qd2 Nf3+/– 19.Kf3 Qe6 20.Kf2 Bh2 21.Re1+/– Bg3!? 22.Kg3 Qg4 (22...Qg4 23.Kh2 Re1 24.Bh7 Kh7 25.Qd3 Kg8 26.Qb3 Re6–+) 0–1.

15.Bd3 Nh4? 16.Qg5 f6?? (16...Ng6 17.Qe7 Re7 18.Bg6 hg6 19.d5+–) 17.Qf4 (17.Qh4 Qe3 18.Kg3 Qd3 19.Qh3 (19.Kh3 Qf3 20.Qg3 Qf5 21.Qg4 Re3 22.Rg3 Rg3 23.hg3 Qf1 24.Kh2 Qf2 25.Kh3 Qb2 26.Qe6 Kf8 27.Qc8 Kf7 28.Qb7 Qa1–+) 19...Bd6 20.Kh4 Re4 21.Rg4–+) 17...Nf3 18.Kf3 g5 19.Nc3 Qg7 20.Nd5 (better 20.Bc4!? Kh8 21.Qd2+–) 20...gf4=+ Black intends f5 21.Nf6 Kf8? (better 21...Kf7!? 22.Rg7 Kf6 23.Rh7 Re3 24.Kf4 Rd3 25.d5 Nd4 26.Rh3 Rh3 27.Bd4 Ke7=) 22.Rg7+– Re3 23.Kf4 Rd3 24.Rh7?? (24.Rc7 Bd6 25.Ke4 Bc7 26.Kd3+–) 24...Bd2–/+ 25.Ke4 Re3 26.Kf4 ½–½. Salaske,Peter – Leisebein,Peter, corr, 1988.

15.Bd3 Nh4?? 16.Qg5 f6?? 17.Qh4 (17.Bc4 Kh8 18.Qh4 Qe3 19.Kg3 Bd6 20.Kh3 Qf3 21.Rg3 Bg3+=) 17...Qe3 Black gets in control 18.Kg3 Qd3 19.Qh3 (19.Kh3 Qf3 20.Qg3 Qh5 21.Kg2 Re2 22.Kf1 Re1 23.Kg2 Re2 24.Kf1 Re1 25.Kg2 Qe2 26.Kh1 Qe4 27.Qg2 Qg2 28.Kg2 Re2 29.Kf3 Rb2–+) 19...Bd6? (19...Be1 20.Re1 Re1 21.Qc8 Kf7+–) 20.Kh4 Re4 21.Rg4 g5 22.Kh5 Rg4?? (22...Re2 23.Rg5 fg5 24.Qc8 Kg7 25.Qd7 Ne7–+) 23.Kg4 Qe4 24.Kh5 Qg6 25.Kg4 f5 0–1. Dziel,Jaromir – Zarebski,C, corr Poland, 1993.

15.Bd3 Nh4 16.Nh4? Qh4. Leisebein.

15.Bf1 Be1 16.Qe1 Ne1 –+.

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