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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.Na3 Ne3 10.fe3 Re3 11.Be2 Ra3 12.Ba3 Ba3.

9.Na3 Nf4 10.Nc2 Bg4 11.Nb4 Nb4 12.d4 Qd5 13.a3 Nbd3! 14.Bd3 Ng2 15.Kd2 Bf3 16.Qb1 Qh5 17.Rg1 Ne3 (17...Ne3 18.fe3 Qh2 19.Kc3 Re3=+; 17...c6 18.Qf1 Nh4 19.Kc1–/+) 0–1. Sontonyi,Sandor – Dopper,Johan, corr ICCF TT–4–90, 1990.

9.Bb5 Bd6 10.0–0 a6 11.Bc6= bc6 12.d4 Qf6 13.Qc1 Nb4 14.Nbd2 Nd3 15.Qc2 Nb2 16.Qb2 c5 17.Nc4 Be7 18.Rac1 cd4 19.ed4 Be6 20.Qc2 Bd5–/+ 21.Nce5 Bd6 22.Rfe1 Qh6 23.Qa4 Reb8 24.Qd7 Rd8 25.Qf5 Ba2 26.Qe4 Bb4 27.Re3 Bd5 28.Qf5 Bd6 29.g3 g6 30.Qf6 Qg7 31.Qh4 f6 32.Nc4 Bf8 33.Ncd2 g5–+ 34.Qh5 g4 35.Nh4 c5 36.f3 cd4 37.Rd3 Be6 38.Qa5 Qg5 (38...Qg5 39.Qb6 Qe5–+) 0–1. Schulz,Hans_Juergen – Baumann,Heinz, TT–16.27 ETC, 2005.

9.Bb5 Qe7 10.0–0 Bd7 11.d4 a6 12.Bc6 (12.Bd3 Bg4=) 12...Bc6 (worse is 12...bc6 13.Ne5=) 13.Ne5 (13.Qc2!?+=) 13...Bb5–/+ 14.Nd3 (14.Qf3 Bf1 15.Qd5 Be2–/+) 14...Qe4–+ 15.Nb4 Bf1 (15...Nb4?! 16.Nc3 Qd3 17.Qb3=) 16.Qf1 Nb4 17.Nc3 Qc2 18.Qb1 Rad8 19.h3 (19.Qc2 Nc2 20.Rb1 b5–/+) 19...Qb1 20.Rb1 (20.Nb1?? Nc2–+) 20...Nd5 21.Na4 (21.Nd5 Rd5 22.Bc3 b6–+) 21...Rc8 22.Ba3 b6 23.Rc1 Re6 24.Nb2 f6 25.Nd3 a5 26.Rc4 Kf7 27.Kf1?? (27.Rc1 Rce8–+) 27...Ke8 (better is 27...Re3 28.Nf4 Rc3 (28...Nf4?! 29.fe3 Nd5 30.Kf2–/+) 29.Rc3 Nc3–+ (29...Nf4?! 30.Bd6 Nd5 31.Rc4–/+)) 28.Ke2 Kd7 29.Bc1 Rc6 (29...Rce8 30.Kd2–+) 30.Rc6 Kc6 31.a3 Kb5 32.Nb2 c5 33.dc5 Rc5 34.a4 (34.Nd3 Nc3 35.Ke1 Rc6–+) 34...Ka6 35.Bd2 Rc2 36.Nd1 Ra2 37.e4 (37.f3–+) 37...Nf4 (37...Nf4 38.Ke3 Ng2 39.Ke2 Ra4–+) 0–1. Efimov,Andrey (2155) – Bik_Mukhamedov,Mikhail (1890), 45th Rtng Kimry, 2009.

9.Bb5 Bf5 10.Bc6 bc6 11.0–0 Bd3 12.Re1 Bd6 13.Nc3 Rb8 14.Qc1 Nb4 15.Rd1 Bc2 16.Rf1 Bf5 17.Na4 Nc2 (17...Nd3!? 18.Qc3 Nb2 19.Nb2 Be4–/+) 18.Nd4= Nd4 (< 18...Na1 19.Nf5 Qg5 20.Nd6 (20.Qa1? Qf5 21.Bc3 c5–+) 20...cd6 21.Ba1+/–) 19.Bd4 Bd3 20.Re1 (20.Ba7? Ra8 21.Re1 Ra7–+) 20...Qh4 21.g3 Qh3 22.Nc5?? (better is 22.f4–/+) 22...Bc5–+ 23.f3 Bd6 24.Qc6 (24.f4 c5 25.Bb2–+) 24...Bg3! 25.hg3 Qg3 26.Kh1 Re6 27.Qe6 fe6 28.e4 Qf3 (29.Kh2 Rb5–+) 0–1. Bestia03g – CometB31_3, computer chess game, 2001.

9.Bc1 Re3 10.fe3 Ne3 11.Qb3 Qe7 12.Ba3 Ng2 13.Kf2 Bh3 14.Bb4 Nb4 15.Nc3 Rd8 16.Rd1 Rd3 17.Qc4 Qd6 18.Qe4 Qc5 19.Kg3 Qg5 20.Kf2 Qc5 21.Kg3 Qg5 22.Kf2 Qc5 ½–½. Nicklich – Kabisch, DDR 1981.

9.Nc3 Nc3 10.dc3=+ Bc5 11.Nd4? Nd4–/+ 12.cd4 Bb4 13.Ke2 Qe7 14.Qd3 c5 15.h3 Be6 16.Qc2 Rac8–+ 17.dc5 Rc5 (17...Rc5 18.Qa4 b5 19.Qb4 Rc2 20.Qd2 Rd2 21.Kd2 Rc8–+) 0–1. Berreteaga – Barros Pazos, corr Spain, 1989.

9.Nc3 Bg4 10.Be2 Nc3 11.dc3 Qf6 12.Qc2 Bf5 13.Qb3 Ba5 14.0–0 Bb6 15.c4 Qe7 16.Rfd1 Rad8 17.Qc3 f6 18.Rd5 Be6 19.Ba3 Qf7 20.Rb5 a6=+ 21.Rbb1 Ba5 22.Qc2 Bc8 23.Bd3= Qh5 24.Be4 Re4 25.Qe4 Bf5 26.Qf4 Bb1 27.Rb1 Ne5 28.h3 Nf3 29.Qf3 Qf3 30.gf3 b6 31.Bb4 Bb4 32.Rb4 Rd2 33.Ra4 a5 34.c5 Kf7 35.cb6 cb6 36.Ra3 Rb2 37.f4 Rb4 38.Rc3 Kg6 39.a3 Rb1=+ 40.Kg2 a4 41.e4 h5 42.h4 b5 43.e5 fe5 44.fe5 Kf5 45.Rg3 b4 46.ab4 Rb4 The passed pawn on a4 will quickly become a dangerous weapon 47.Rg5 Ke6 48.f3 a3–+ 49.Rg6 Ke5 50.Ra6 Rb2 51.Kg3 a2 52.Ra5 Kd4 53.Ra8 Kc3 54.Kf4 Rg2 55.Kf5 Kb2 56.Rb8 Kc1 57.Rc8 Kb1 58.Rb8 Rb2 59.Ra8 a1Q 60.Ra1 Ka1 61.Kg6 Rg2 62.Kh5 Kb2 63.f4 Kc3 64.f5 Kd4 65.f6 gf6 66.Kh6 f5 67.h5 f4 68.Kh7 f3 (68...f3 69.h6 f2 70.Kh8 f1Q 71.Kh7 Qf7 72.Kh8 Rg8#) 0–1. Truksa,V – Hlavac,R, Tachov–K.Vary pr.5 c, 1990.

9.Bc4 Na5 10.Bd5 Qd5 11.Qa4 Re4 12.0–0 Bd7 13.Qd1 Rg4 14.a3 Bd6 15.h3 Rg6 16.Nc3 Qh5 17.Ne4 Bh3 18.Ng3 Bg3 19.fg3 Rg3 20.Rf2 Re8 21.Ne5 Re5 22.Qh5 Rh5 23.Kh2 Rg2 24.Rg2 Bg2 25.Kg2 Nc4 26.Bc3 Rf5 27.Rb1 b6 28.a4 h5 29.Rb4 Nd6 30.Rd4 Rg5 31.Kh3 f5 32.Kh4 Rg4 33.Rg4 hg4 34.d3 a5 35.Be5 Kf7 36.Kg5 Ke6 37.Bf4 b5 38.ab5 a4 39.e4 fe4 40.Kg4 ed3 41.Kf3 Nb5 42.Bc1 c5 43.Ke3 c4 44.Bb2 g5 0–1. hal1958 – AdamPerring, playchess.de, 2002.

9.Bc4 Re3?? 10.fe3+/– Ne3 11.Bf7 Kh8?? 12.Qc1 Ng2 13.Kf2 Qe7 14.Qc4 Na5 15.Qd5 Nf4 16.Bg7 Kg7+= 17.Qd4 Qf6 18.Rg1 Kf7=+ 19.Ng5 Ke7 20.Qb4 Kd8 21.Qa5? Nh3–+ 22.Ke3 Qe7 23.Ne4+/– Ng1 24.Nbc3?? Nh3–/+ 25.Nd5 Qg7 26.Rc1 b6 27.Nb6?? Qh6–+ 28.Kd3 Nf4 29.Ke3 Nd5 30.Kd4 Qb6 (31.Qb6 Nb6–+ (< 31...cb6 32.Kd5 Bb7 33.Ke5+=; 31...ab6?! 32.Kd5 Bb7 33.Ke5–+); 30...Nb6!? 31.Qe5 c6 32.Qd6 Qd6 33.Nd6–+) 0–1. Milligan – Sternik,Ryszard, corr 3GMM–13, 1995.

9.Bc4 Nf4 10.0–0= Ng6. Feofanov,Alexander – Borisov,Sergey M, Half Omsk CCC, 2009.

9.Bc4 Bf5 10.0–0 Nb6 11.Bb5 Re6 12.Bc6+= Rc6 13.Nd4 Rc5? 14.Nf5+– Rf5 15.Qg4 Rg5 16.Qb4 Qd5 17.e4 Qd3 18.f4 Rg6 19.Rf2 a5 20.Qd4 Qc2 21.Na3 (21.Na3 Qa4 22.Rc1 Qd4 23.Bd4+–) 1–0. Bonetti,Shane – Pietrzak,Wojciech, Orang–Utan Invitational, 2002.

9.Bd3 Ne3! 10.fe3 Qd3 11.Nc3 Bg4 12.Rf1? Nd4 13.h3?? Nc2 14.Kf2 Bf3 15.Qf3 Qd2 16.Kg1 Qe3 17.Qe3 Re3 18.Nd5 Re2 19.Rac1 Bc5 20.Kh1 Bd6 21.Nc3 Rd2?? 22.Ne4=+ Rg2 23.Nd6 cd6 24.Kg2 Ne3 25.Kf2 Nf1 26.Rf1 Rc8–/+ 27.Rc1 Rc1 28.Bc1 Kf8 ½–½. Brown,Alan – Wall,Bill, Dayton, OH, 1981.

9.Be2 a5 10.0–0 Na7 11.d4 Bd7 12.a3 Bf8 13.Nbd2 g6 14.Ne5 Bg7 15.Nd7 Qd7 16.g3 Re6 17.e4+= Rae8 18.Bg4+– f5 19.ed5 Qd5? 20.Bf3+– Qd7 21.Nb3 b6 22.a4 Nc8 23.d5 Rd6 24.Bg7 Kg7 25.Rc1 c6 26.Rc6 Ne7 27.Qd4 (27.Qd4 Kf7 28.Rb6 Rb6 29.Qb6 Nd5 30.Qa5+–) 1–0. Kuehn,Peter – Meybohm,Dirk, corr, 1986.

9.Be2 Ba5 10.0–0 Be6 11.d4 a6 12.Qc1 Bf5 13.a3 Qd7 14.Nbd2 b5 15.Nb3 Bb6 16.a4 Nf4 17.ef4 Re2 18.ab5 Nb4 19.Qc4 Rb2 20.Qb4 Qd5 21.Nfd2 Bd3 22.Rfe1 Bb5 –+. Nicklich – Bischoff, corr 1972.

9.Be2 Nce7 10.0–0 c5 (10...Nb6 11.h3=) 11.d4 cd4 (11...Nf5 12.Bb5 Bd7 13.Bc4=) 12.Nd4 (12.Qd4 Nf5 13.Qd1 Qd6=) 12...Nc6 (12...Qb6 13.a4=) 13.Nc6 bc6 14.Bf3 (14.Qc2 Qc7=) 14...Ne7 15.Qc2 Be6? (better is 15...Rb8!?= and Black can hope to live) 16.Bg7!+/– (16.Bc6 is the less attractive alternative 16...Rc8 17.Bg7 Rc6–/+) 16...Nf5? (16...Kg7 17.Qb2 Decoy Double attack) 17.Bc3 (better is 17.Bb2 and White can already relax 17...Rc8 18.a3+– (18.Bc6 is clearly worse 18...Qb6+=)) 17...Bd6? (17...Bc3 18.Nc3 (18.Qc3?! Nh4 19.Nd2 Nf3 20.Nf3 Bd5+/–) 18...Qd6 19.Qa4+–) 18.Qa4 (better is 18.Be4 seems even better 18...Bb3 19.ab3+– (19.Qb3?! Qh4 20.g3 Qe4+–)) 18...Nh4 19.Nd2 Nf3 20.Nf3 c5 21.Rad1 Qe7 22.Nd2 Bd7 23.Qc4 Rab8 24.Kh1 Rb6 25.a4 Bb8 26.Ne4! Bf5 27.Ng3 Bc8 28.Ba1?? Rh6?? 29.Qc3+– f6 30.Qc4 Be6 31.Qb5 Kf7 32.f4 Rg8? 33.Kg1 Rg3?? 34.hg3 Bc7 35.e4 Bb6 36.a5 Bc7 37.Rfe1 Bg4 38.Rd3 f5 39.Rd7 (39.Rd7 Re6 40.Re7 Re7 41.Qc4 Ke8 42.Qc5+–) 1–0. Vasut,Karel (2165) – Hrabe,Petr (2170), MOR–chT2S, 2002.

9.Be2 Nde7 10.0–0 Bg4 11.d4 Ng6 12.d5 Nce5 13.Qd4 Bf3=+ 14.Bf3 Nf3 15.gf3 Bf8 16.Nd2 Qh4 17.Rac1 Qd4 18.Bd4= Rec8 19.Kh1 Bd6 20.f4 f6 21.Ne4 Kf7 22.Rc2 Ne7 23.Rb1 b6 24.Rb5 a6 25.Rb6+/– Bf4 26.Rb7 Bh6? 27.Rcc7 Rc7 28.Rc7 Kf8?? 29.Bc5 (29.Bc5 Re8 30.d6+–) 1–0. Borrmann,Fritz – Zuechner,B, CiF, 1991.

9.Be2 Nf6 10.0–0 Ba5 11.d4 a6 12.Nbd2 b5 13.Nb3 Bb6 14.Rc1 Bb7 15.Nc5 Bc5 16.Rc5 Nd7 17.Rc1+= Nf6 18.Nd2 Ne7 19.Bf3 c6 20.Nb3+/– (20.Nb3 Bc8 21.Nc5+/–) 1–0. Borucki – Dobosz, corr 1. AMM Poland, 1991.

9.Be2 Bf8 10.0–0 Be6 11.d4 Nb6 12.Nbd2 Nb4 13.a3 N4d5 14.Rc1 c6 15.Ne4 Bf5 16.Nc5 Nd7 17.Nd7 Qd7 18.Ne5 Qe6 19.Re1 Nb6 20.Nd3 Bd6 21.Nc5 Qh6 22.g3 Bc5 23.Rc5 Be4 24.Bc1 Qd6 25.f3 Bg6 26.e4 Rad8 27.Bb2 Qe6 28.a4 Qa2 29.Ba1 Qa3 30.a5 Nd7+/– 31.Qc1 Qa2 32.Qc2 Qe6+= 33.Rc3 Nf6 34.a6 Qd7 35.Rc4 b5 36.Rc6 Ne4? 37.Rc7 Nd6+/– 38.Rd7 Bc2 39.Ra7 Ra8 40.Rd7 Ra6+= 41.Bc3 Bf5 42.Bb5+/– Re1 43.Be1 Bd7 44.Ba6 Bb5 45.Bb5 Nb5 46.d5 Kf8+= 47.Bb4 Ke8= 48.Kf2 Nc7 49.d6 Nb5 50.Ke3 Kd7 ½–½. Franke,Lutz (1995) – Kopylov,Mihail (2435), Bargteheide GER Haspa Open, 2005.

9.Be2 g5 10.a3 Be7 11.0–0 Bf5 12.d4 Bd6 13.Qb3 Na5 14.Qd1 b5 15.Nc3 Nc3 16.Bc3 Nc4 17.Qb3 g4 18.Ne1 Bh2?? 19.Kh2+– Qh4 20.Kg1 Re6 21.Bg4?? Bg4=+ 22.Nc2?? Bf3–+ (22...Bf3 23.a4 Rh6 24.Qc4 Qh2#) 0–1. Trokenheim,Marek – Rydh,Andreas, corr SSKK 3–06, 1984.

9.a3 Be7

10.Bb5 Qd6 11.d4 Qg6 12.0–0 Bh3 13.Ne1 Bg4 14.Be2 Bf5 15.Bf3 Rad8 16.Nd2 Nb6 17.Rc1 Bd6 18.g3 Qg5 19.Bg2 Bg4 20.Nef3 Qh5 21.e4 Na5 (21...Rd7!?=) 22.e5+= Be7 23.Rc7 Nd5 24.Rc1 b5 25.a4 Bb4 26.Qc2 Bf5 27.Ne4 Rc8 28.Qd3 ½–½. Wantoch_Rekowski,Jacek (2285) – Balabaev,FG (2080), WS/M/065 ICCF, 2006.

10.Be2 Bf5 11.Nc3 Qd7 12.0–0 Rad8 13.d4 h6 14.Re1 a6 15.Nd5 Qd5 16.Nd2 Qa5 17.Rc1 Be6 (17...Ba3? 18.Nc4 Qd5 19.Ba3+–) 18.h3 Bf8 (18...Ba3? 19.Ra1 Bb2 20.Ra5 Na5 21.Qc2 Bd4 22.ed4+–) 19.Bf1 Qb6 (19...Ba3? 20.Ra1 Bb2 21.Ra5 Na5 22.Qc2 Bd4 23.ed4+–) 20.Qc2 Na5 21.Red1 Nc6 22.Nc4 Qa7 23.Bd3 Qb8 24.Nd2 Qc8 25.Ne4 Bd6 26.Qc3 Bh3 27.f3 Bf8 28.gh3+/– Qh3 29.Qd2 Qf3 30.Qf2 Qg4 31.Qg2 Qg2 32.Kg2 Ne7 33.Nc3 h5 34.Kf3 c6 35.Ne2 g6 36.e4 Rd7 37.Rg1 Bg7 38.a4 Rc8 39.Rc5 b6 40.Rc2 b5 41.Rc5 Rcd8 42.Bc2 Rb7 43.a5 Rc7 44.Bb3 Kf8 45.Rd1 Rcd7 46.Kg2 Ke8 47.Rd3 Rc7 48.Bc1 Rcd7 49.Rf3 f6 50.Kf2 Rd6 51.e5 fe5 52.Bg5 ed4 53.Be7 Ke7 54.Rf7 (54.Rf7 Ke8 55.Rg7+–) 1–0. Nicotera,Alessandro – Branchi,Marco, ITA/WB/021 (ITA), 2011.

9.a3 Bf8

10.Be2 Qd6 11.Qc2 Qh6 12.d4 Bd6 13.Nbd2 Bg4 14.Nc4 Rad8 15.h3 Bf4 (15...Be7 16.Rb1=) 16.0–0–0 (16.0–0 Bh3 17.Rfe1 Re6=) 16...Bh5= 17.ef4 Nf4 18.Ne3 Ng2 19.Rhf1 Ne3 20.fe3 Qe3 (20...Re3!? 21.Kb1 Bg6–/+) 21.Rd2= Qh6 22.Kb1 (22.Kd1!?=) 22...Bg6+= 23.Bd3 Qh3 24.Rff2 Qh5 25.d5 Rd5 26.Bg6 hg6 27.Qc3 f6 28.Qb3 Red8 29.Qb7 (29.Be5! Qf5 30.Ka1+=) 29...Qf5–/+ 30.Ka1 Rd2 ½–½. Boehnke,Hartmut (2175) – Henrich,Guenter (2315), RSX – FSO1 remoteschach.de, 2005.

10.Be2 Bg4 11.0–0 Qd7 12.d4 Rad8 13.Nbd2 –+.

9.Bb5 a6

10.Bc6 bc6 11.0–0 Bd6 12.Qc2 Bg4 13.Nd4 c5 14.Nb3 Rb8 15.f4 Nb4 16.Qc3 Bf8 17.Na3 Qd5 Black gets strong initiative 18.Nc1 Qe4 19.Nb3 Nd3 20.Nc4 Be6–+ 21.Ne5 Bd5 22.Rf3 Re5! 23.fe5 c4 24.e6 Be6 25.Rg3 Nb2 26.Nc5 Qf5 27.Ne6 Qe6 28.Rb1 Qb6 29.Rg4 Qb4 30.Rc4 Nc4 31.Rb4 Rb4 32.e4 Bc5 33.Kf1 Bd6 34.g3 h6 35.d3 Ne5 36.d4 Rc4 37.Qb2 Nd3 38.Qb8 Bf8 39.d5 Re4 40.Qc7 Rd4 41.Qb6 Rd5 42.Qa6 Nb4 43.Qa7 Rd2 44.a3 Nd3 45.a4 Rh2 46.a5 g6 47.Qb8 Kg7 48.Qb3 Rf2 49.Kg1 Bc5 50.Kh1 Rf3 51.Qc3 f6 52.Qc4 Rf1 53.Kg2 Rf2 54.Kh1 Rd2 55.g4 Nf2 56.Kg1 Ne4 57.Kf1 f5 58.gf5 gf5 59.a6 Rb2 60.Qd3 Rb1 61.Ke2 Ra1 62.Qb3 Ra2 63.Kd3 Rd2 64.Kc4 Rd4 65.Kb5 h5 66.Qb2 h4 67.Kc6 Kh6 68.Qc1 Kg6 69.Qg1 Kf7 70.Qa1 Rd6 71.Kb5 Rb6 72.Kc4 Rb4 73.Kd3 Rd4 74.Kc2 Rc4 75.Kd1 Ra4 76.Qe5 Kg6 77.Qh8 Ra2 78.Kc1 Ra6 79.Qh4 Ra2 80.Qh8 Be3 81.Kb1 Rf2 82.Qg8 Kh5 83.Qh8 Kg4 84.Qg7 Kh3 85.Qh7 Kg2 86.Qc7 Re2 87.Qc6 Bd4 88.Qd5 f4 89.Qd4 Nd2 (89...Nd2 90.Kc2 Nf3 91.Kc3 Nd4 92.Kd4 f3 93.Kc3 f2 94.Kc4 f1Q 95.Kd3 Qd1 96.Kc4 Rc2 97.Kb4 Qb1 98.Ka4 Ra2#) 0–1. Birzer,Lothar – Markus,Roland, DESC, 1999.

10.Bc6 bc6 11.0–0 Bd6 12.Qc2 Bg4 13.Nd4 c5 14.Nb3 Bf3 15.Qf5 Qh4–/+ 16.g3 Be4 17.Qf7 Kf7 18.gh4 c4 19.Nd4 c5 20.Ne2 Bd3 21.Nbc3 Rab8 22.Nd5 Rb2 23.Ndc3 Rd2–+ 24.Rfd1 Rb2 25.Nf4 Be5 26.Rac1 Rd8 27.h3 Rd6 28.h5 Bf4 29.ef4 Rd4 30.Na4 Ra2 31.Nc5 Rd5 32.Nd3 cd3 33.Rc7 Kf6 34.Kg2 Rd6 35.Kf3 a5 36.h6 gh6 37.Rh7 Kg6 38.Rc7 d2 39.Ke4 Re6 40.Kd3 a4 41.Rd7 a3 42.Kc4–/+ Ra6 43.Kc3 Rb2 (43...Rb2 44.f5 Kf5 45.Rd5 Kg6 46.Rg1 Kf7 47.Rd7 Kf6–+) 0–1. Van Rooijen,Peter (1850) – Johnsrud,Jeffory (2475), SEMI, 2000.

10.Bc6 bc6 11.Qc2 Nf4 12.0–0 Qd3 13.Qd1 Nh3 14.gh3 Bh3 15.Be5 Bf1 16.Qf1 Qd5 17.Qg2 Re5 18.Ne5 Qe5 19.Nc3 Qe6 20.Ne4 Ba3 21.d4 Rb8 22.Qf3 Rb2 23.Ng3 h6 24.Kg2 Qd5 25.h3 Qf3 26.Kf3 g6 27.Ne4 f5 28.Nf6 Kf7 29.Nd7 Bd6 30.Rc1 Ra2 31.Rc6 g5 32.Nc5–/+ a5 33.Nb7 h5 34.Nd6 cd6 35.Rd6 g4 36.hg4 hg4 37.Kg3 a4 38.f3 a3 39.Rd5= Ra1 40.Rf5 Ke6 41.Re5 Kd6 42.Ra5 a2 43.fg4 Rg1 44.Kf3 Rf1 45.Ke4 a1Q 46.Ra1 Ra1 47.Kd3 Rg1 48.g5 Rg5 49.e4 Rh5 50.Kc3 Rh3 51.Kc4 Re3 52.e5 Ke6 53.Kc5 Rc3 54.Kb4 Rc6 55.Kb5 Kd5 56.e6 Re6 57.Ka4 Kc4 58.Ka3 Rd6 59.Kb2 Rd4 60.Kc2 0–1. bambinik – Crazy Horse, internet, 2001.

9.Bb5 Nf4!?

10.0–0 Nd3 11.Bd4+/– Bf5 12.Qc2+– Bd6 13.a3 Be4 14.Bc6 bc6–/+ 15.Qd1 c5 16.Bc3 Re6 17.a4 Rg6 18.g3 Qd7 19.Kg2?? Rh6 20.Rh1 Qf5 21.Na3 Ne1! 22.Re1 Bf3 23.Qf3 Rh2! 24.Kh2 Qf3 25.Kg1 Re8 (25...Re8 26.Bg7 Re6 27.Rab1 Kg7 28.Rb8 Rh6 29.Rg8 Kg8 30.d3 Rh1#) 0–1. Scholbach,Tillmann – Makowiecki,Zbigniew, IECG, 1999.

10.0–0 Ng2!? 11.Kg2 Bg4!?

9.Qc2 Nf4

10.a3 Ba5 11.Qc4 Ng6 12.Be2 a6 13.0–0 Be6 14.Qc2 Qd7 15.Nc3 Bf5 16.Qb3 Rad8 17.d4 Qd6 18.Na4 Be6 19.Qc2 Bd5 20.Nc5 Qe7 21.Rac1 Nb8 22.Qf5+= c6 23.Rfd1 h6 24.Bc3 Bb6 25.Bb2 a5 26.Na4 Bc7 27.Nc3 Bb3 28.Re1 b5 29.Qb1 Nh4 30.Nh4 Qh4 31.g3 Qe7 32.Bf3 a4 33.Qf5 Rd6 34.Bg2 Ba5 35.Rf1 Rg6 36.h4 Re6 37.Bh3 Nd7 38.Nb5 White gets the initiative. 38...Bd2 39.Nc7+= Bc1 40.Bc1 Bc4 41.Rd1+= Rd8 42.Ne6 Be6 43.Qe4 Nc5 44.Qg2 Bd5 45.Qf1 Ne4 46.Bg2+= Rd6 47.Qa6 Nf2? 48.Kf2+– Rf6 Black gets deadly initiative 49.Kg1 Bg2 50.Re1 Qe4 51.Qe2 Bf3 52.Qh2 Qg4 53.Bd2 Be4 54.Ba5 c5 55.dc5 Rf5 56.Bb6 Rd5 (56...Rd5 57.Ba5 Rc5–+) 0–1. Hoefer,Hans_Peter (1945) – de Vries,Gertjan (2060), IECC, 2000.

10.a3 Ba5 11.h3 h6 12.Bc3 Bb6 13.Qb2= g5 14.Bh8 Nh5 15.Bc3 Bf5 16.Kd1 Rb8 17.d4 Nf6 18.Nbd2 Ne7 19.Nc4 Ned5 20.Rc1 Ne4 Black fights for the Initiative 21.Be1 c5 22.Nb6 Qb6 23.Qb6+= ab6 24.Bc4 Red8 25.Ne5 cd4 26.ed4 Be6 27.Kc2 f6 28.Ng4 h5 29.Bd5 Rd5=+ 30.Kd3 Rbd8–/+ 31.Ne3 Rd4 32.Ke2 f5 33.f3 f4 34.fe4 Re4 35.Rc3 fe3 36.Re3 Re3 37.Ke3 Rd1 38.Rg1 Ra1 39.Kd4 Ra3 40.Ke5 Bd7 41.Kf6 g4 42.Bh4 Rc3 43.hg4 Bg4 44.Rb1 Rc6 45.Ke5 b5 46.Rb5=+ Rc7 ½–½. Luzuriaga,Norberto Horacio – Domancich, email LADAC, 1999.

9.Nc3 Nf4

10.a3 Ba5 11.Qa4 Nd3 12.Bd3 Qd3 13.Qb5 Bf5 14.Qb7 Qd7 (14...Qd7 15.Qb3 Rab8=+; 14...Bd7 15.Qb3 Rab8 16.Qa2 Bc3 17.dc3–+) 0–1. Tsirkas,H – Makropoulou,Marina (2285), Komotini op, 1992.

10.d4 Bg4 11.h3? (better is 11.Kd2–/+) 11...Bf3–+ 12.gf3 Nd4 13.Bc4 Qg5 (better is 13...Qf6 14.Kf1 Nf3 15.Qf3 Bc3 16.Bc3 Qc3 17.Bf7 Kf7 18.Qf4 Kg8–/+) 14.Bf1?? (better is 14.Qd4 Rad8 15.Qa7 Re3 16.Qe3 Ng2 17.Ke2 Ne3 18.Ne4 Nc4 19.Ng5 Rd2 20.Kf1 Rb2 21.a4+=) 14...Rad8–+ 15.a3 Qg6 16.ab4 (16.Qd4 Rd4 17.ab4 Re3 18.Ne2 Qc2 19.fe3 Nd3#) 16…Nc2 (16...Nc2 17.Qc2 Qc2–+) 0–1. Rush,Bradley – Broniek,Mariusz Maciej (1605), OP–2011–0–01936, 2011.

10.g3 Nd3 11.Bd3 Qd3 12.Qb1 Bf5 13.Qd3 Bd3 14.Kd1 Rad8 15.Rg1 Na5 16.Ne1 Nc4 17.Bc1 Bf5–+ 18.Ke2 Bg4 19.f3 Ne3 20.de3 Bc3 21.Rb1 Bc8 22.Nd3 Be6 23.Nc5 Bc4 24.Kf2 b6 25.Nb3 Bd3 (25...Bd3 26.Bb2 Bb1 27.Rb1 Rd3–+) 0–1. Kirdin,GP – Kuhlmann,AEJ, corr WCCF–6, 1989.

9.Bc4 Nb6

10.Bb5 Bd7 =+.

10.Be2 Bf5 11.0–0 Bd3 12.a3 Be7 13.Bd3 Qd3 14.Nc3 Nc4 15.Qb3 N6a5 16.Qa4 a6 17.Rfc1 b5 18.Qc2 Rad8 19.a4 Bf6 20.ab5 ab5 21.g3 c6 22.h3 Nb2 23.Ra5 Nc4 24.Qd3 Rd3 25.Ra2 Red8 26.Ne4 Be7 27.Nd4 Rc8 28.Ra6 Nd2 29.Rcc6 Re8 30.Nd2 Rd2 31.Nb5 Bf8 32.Nd4 g6 33.h4 Bg7 34.Nf3 Rd7 35.Kg2 Red8 36.g4 Re8 37.Ra5 Rde7 38.h5 Re4 39.Kh3 R4e6 40.Re6 fe6 41.hg6 hg6 42.Ra6 Bf6 43.g5 Bg7 44.Nh4 Kh7 45.Ng2 Be5 46.f4 Bg7 47.Kg4 e5 48.Nh4 ef4 49.ef4 1–0. Bonetti,Shane – guest784, ICC, 2002.

9.Be2 a6

10.0–0 Bd6 11.d4 b5 12.Nbd2 Bf5 13.a3 Re6 14.Re1 Rg6 15.e4= Bh3 16.g3 Nf4 17.Bf1 Qd7 18.Nh4 Rg5 19.Ndf3 Bg4 20.Bc1 Rd8 21.Be3 Rh5 22.e5 Be7 23.Bf4+/– g5 24.Bg5 Bg5+= 25.Be2 Bh6 26.Ng2 Qe6= 27.Ne3 Be3 28.fe3 Ne5?? 29.Ne5+– Rd4 30.Bg4 (30.Bg4 Rd1 31.Be6 Re1 32.Re1 Re5 33.Bc8+–; better is 30.ed4 Be2 31.Qe2+–) 1–0. Guziec (1800) – Franek (2000), corr 1. AMM Poland, 1991.

10.Qc2 Bg4 11.a3 (11...Ba5 (11...Bd6 12.Nc3 (12.d3 Qe7 13.Nc3 Bf3 14.Bf3 Nd4 15.Qd1 Nf3=+; 12.d4 Qe7 13.Nc3 Nc3 14.Qc3 Qf6 15.Rc1 Qg6=) 12...Bf3 13.gf3 Nf6 14.d4 Ne7 15.Bd3 Qd7=) 12.h3 Bh5 13.Bd3 Bf3 14.Bh7 Kh8 15.gf3 Qh4=+) =. Buczinski,Henryk – Karnicki,Jacek, corr qual Poland–ch, 2004.

9.Be2 Re6

10.0–0 Rh6 11.Na3 Bg4 12.Nc4 Nb6 13.Nce5 Ne5 14.Be5 Bd6 15.Bd6 Qd6 16.h3 Bd7 17.d4 Re8 18.Ne5 Bc8 19.a4 c5 20.a5 Nd5 21.Nc4 Qc7 ½–½. Nordbrink – Kolbus, corr 1980–81.

10.Na3 Rg6 11.0–0 =+.

10.Na3 Rh6 11.Nc4 Bf8 (11...Rg6 12.a3 Be7 13.0–0=+) 12.Nfe5 (12.0–0 Be6=) 12...Ne5=+ 13.Ne5 Be6 14.a3 c6 15.Qc2 g5 (15...Bd6 16.f4=+) 16.f3 (16.0–0 f6 17.Ng4 Rh4+=) 16...Qc7 17.g3 Qa5 18.Kf2 Re8 19.h4 gh4 20.Rh4 Rh4 21.gh4 (21...Bg7 22.Rg1=) =. Vaintraubas,Saliamonas – Dumouchel,Alain, EM/J50/P131 ICCF Email, 2001.

9.a3 Ba5

10.Qb3 Bb6 11.Be2 Be6 12.Qd3 Nce7 13.0–0 Ng6 14.Nc3 Nc3 15.Qc3 f6 16.d4 Bd5 17.Qc2 c6 18.Bd3 Bf3 19.gf3 Nf8 20.Kh1 Bc7 21.Rg1 Kh8 22.Rg2 Qd5 23.Be4 Qh5 24.d5 Be5 25.dc6 bc6 26.Rag1 Ne6 27.Be5 fe5 28.Bc6 Rac8 29.Qa4 Re7 30.Bd5 Nc7 31.Rg5 Qh6 32.Bb7 Rd8 33.Qa7 Ne6 34.Re5 Qf6 35.f4 g5 36.Qa5 Rg8 37.fg5 Reg7 38.f4 1–0. Hirtreiter – Liese, corr BdF 1987.

10.Bb5 Bd7 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Re8 8.a3 Ba5 9.cd5 Nd5 10.Bb5 Bd7).

10.Bb5 Qe7 11.0–0 Bd7 12.Qb3 Nb6 13.d4 Rad8 14.Bd3 Bg4 15.Nbd2 Bd2 16.Nd2 Bh5 17.Rab1 Bg6 18.Bg6 hg6 19.Bc3 Qe6 20.Qe6 Re6 21.Rfc1 Ree8 22.Bb4 Rd5 23.Bc5 Rd7 24.Nf3 Rdd8 25.Bb6 ab6 26.a4 Rd7 27.Ng5 Ra8 ½–½. Husslein – Markus, corr SOK–88–18.

10.Be2 Qe7 11.0–0 Nf4 12.Bb5 Ng2 13.Kg2 Bg4 14.Bc6 bc6 15.Qa4 Bf3 16.Kf3 Qg5 17.Qc6 Qh5 18.Kg2 Rab8 19.f3 Re6 20.Qc1 Rg6 21.Kf2 Qh2 22.Ke1 Re8 23.Qc5 Bb6 24.Qc3 Rg1 25.Rg1 Qg1 26.Ke2 Qg2 27.Kd3 Qf3 28.Qg7 1–0. Bonetti,Shane (2155) – Player (2560), Blitz: ICC, 2002.

10.Be2 Nce7 11.0–0 c6 12.Bc4 Be6 13.Qc2 Ng6 14.d4 Nh4 15.Nh4 Qh4 16.Rc1 Qg5 17.Bd3 Ne3 18.fe3 Qe3 19.Kf1 Bg4 (19...Qf4 20.Qf2 Qh2 21.Nc3=+) 20.Nc3 Re6 21.Ne4 0–1. Sternik,Ryszard – Wozniak,K, corr, 2000.

10.Be2 Bf5 11.0–0 Qe7 (withdraw) 1–0. Suess – Veegens, corr ICCF EU–III–884 1984.

10.Be2 Bg4 11.0–0 Qd6 12.Qb3 Rad8 13.d4 (13.Qb7? Rb8 14.Qa6 Rb2–+) 13...Qg6 14.Nh4 (14.Qb7? Rb8 15.Qa6 Rb2–+) 14...Qh5 15.Bg4 Qg4 16.Nf3 (16.Qb7? Rd6–+) 16...Re6 17.h3 (17.Qb7? Rb8 18.h3 Rb7 19.hg4 Rb2–+) 17...Qh5 18.Rc1 (< 18.Qb7 Rb8 19.Qa6 Nd4 20.Qa7 Nc6=+) 18...Rf6 (18...Rg6 19.Kh2=) 19.Nbd2 (19.Nc3!?=) 19...Rg6=+ 20.Qd3 (20.Qb7 Qh3 21.Ne1 Ne3 (21...Bd2 22.Rc6 Be1 23.Rg6 Bf2 24.Kf1 Qe3 25.Rg7 Kg7 26.Qb5–+) 22.Qc6 Ng2 23.Qg6 fg6 24.Ng2 Bd2 25.Rc7 Qb3–+) 20...Bd2 21.Nd2 Re8 22.Rc2 Qg5 23.Qf1 a6 24.Rac1 Qh6 (24...Qh4 25.Kh2=+) 25.Kh1= Rf6 ½–½. Van Daatselaar,JB – Lubas,Jozef (2020), EM/CL/Q21–4 ICCF Email, 2002.

10.Be2 Re3

11.fe3 Ne3

12.Qa4 Bf5 13.Kf2 Nc2 14.Ra2 +/–.

12.Qa4 Ng2? (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Re8 8.a3 Ba5 9.cd5 Nd5 10.Be2 Re3 11.fe3 Ne3 12.Qa4 Ng2).

12.Qb3 Qe7 13.Nc3! Ng2 14.Kd1 Nf4 15.Re1 Ne2 16.Re2 Be6 17.Qb7 Qe8 18.Qa6 Rb8 19.Kc1 Qd7 20.Ne5 Ne5 21.Re5 Bb6 22.Qe2 Bd4 23.Rb5 Re8 24.Rb4 c5 25.Rb5 h6 26.a4 Bh3 27.Rb7 Qc6 28.Re7 Re7 29.Qe7 Qh1 30.Nd1 Bg4 31.Kc2 Bf5 32.Kb3 Qf3 33.Nc3 Be6 34.Ka3 Qd3 35.Qe8 Kh7 36.Qb5 Qd2 37.Rd1 Qh2 38.Qe2 Qd6 39.Qc2 g6 40.Ne4 Qb8 41.Bc3 Bf5 42.Rd4 cd4 43.Bd4 Qf8 44.Qc5 Qc5 45.Nc5 h5 46.a5 h4 47.Kb4 h3 48.Be5 Bg4 49.Kc3 g5 50.Kd2 f5 51.Bh2 Kg6 52.Ke3 Kf6 53.Kd4 Bf3 54.Nd7 Ke7 55.Ne5 Bg2 56.Ke3 Ke6 57.Kd4 f4 58.Ng4 Kf5 59.Nh6 Kg6 60.Ng4 Kh5 61.Nf2 Kh4 62.Ke5 f3 63.Kf5 Bf1 ½–½. Zumpe – Fessling, corr DDR–M–790 1986.

12.Qb3 Ng2 13.Kd1 Bb6 14.Kc1 Be6 15.Bc4 Nf4 16.Qc3 Nd4 17.Nd4 Bd4 18.Qd4 Qd4 19.Bd4 Bc4 20.Nc3 b5 21.Rg1 g6 22.Kc2 Bd3 23.Kd1 f5 24.Re1 Kf7 25.Re3 1–0. Buss – Grehl, corr 3GMM–06 1994–95.

12.Qb3 Ng2 13.Kf2 Nf4 (13...Bh3 14.Kg3!?) 14.d4 (14.Qe3 Bb6 15.d4 Ne2! 16.Ke2 Bg4 17.Rd1 Qh4) 14...Bg4 15.Bc4? Qe7 16.Nbd2 Bd2! 17.Nd2 Na5 18.Bf7 Kh8 19.Rae1 Qf6 20.Ne4 Qf5 21.Rhf1 Nb3 22.Bb3 Ne2 23.Ke3 Qb5 24.Bd1 Re8 25.Be2 Be2 0–1. Klaus – Gorgs, 1988.

9.a3 Bd6

10.Bb5 Bg4 11.h3 Bh5 12.d4 Qf6 13.Nbd2 Nf4 14.Kf1 Qf5 15.Qb3 (15.a4 Bf3 16.Nf3 Nd5=) 15...Bf3 (15...Na5 16.Qa4 a6 17.Be2 Ne2 18.Ke2–/+) 16.gf3 Nd5?? (16...Na5!? 17.Qa4 a6–/+) 17.Bc6 (better is 17.e4 Qf4 18.ed5 Nd4 19.Qc3+–) 17...bc6+= 18.Rc1? Rab8–+ 19.Qc2 Ne3?? 20.fe3+= Qb5 21.Kf2 Qb2+= 22.a4 Qa3 23.Rb1?? Qe3–+ 24.Kf1 Rb1 25.Qb1 Qe2 26.Kg1 Bg3 27.Qf1 Qe3 (27...Qe3 28.Kg2 Qg5–+) 0–1. Cerny,Lumir – Rutter,L (1890), Open, Teplice CZE, 2008.

10.Nc3 Nc3 11.Bc3 Qe7 12.Qb3= Rb8 13.Be2 Be6 14.Qb2 f6 15.0–0 Qf7 16.d4= Bd5 17.Nd2 f5 18.Bf3 b5 19.Qc2 a5 20.Rfc1 Ra8 21.Bd5 Qd5 22.Nf3 b4 23.Bd2 Ne7 24.Rcb1 ba3 25.Bc1 a2 26.Ra2 Nc6 27.Bd2 Nb4 28.Bb4 ab4 29.Ra8 Ra8 30.Ne5 Be5 31.de5 Qe5 32.Qb3 Kf8 33.Qb4 c5 34.Qd2 Ra1 35.Qd8 Kf7 36.Qd7 Kg6 37.Rd1 Rd1–/+ 38.Qd1 Qe6 39.g3 c4 40.h4 Qe4 41.Qd6 Kh5 42.Qd7 Kh6 43.Qd6 g6 44.Qc7 Qd5 45.Qf4 Kg7 46.Qc7 Kh6 47.Qf4 ½–½. Hirtreiter,Michael – Dick, BdF, 1987.

10.Bc4 Nb6 11.Be2 Bf5 12.0–0 Qd7 13.d3 Rad8 14.Qc2 Ne5 15.Be5 Be5 16.Ne5 Re5 17.Nc3 h6 18.Rfd1 c6 19.Qb2 Qe7 20.d4 Ra5 21.h3 Be6 22.Qb4 Qb4 23.ab4 Ra1 24.Ra1 a6 25.Kf1 Nd5 26.Nd5 Bd5 27.Bd3 g6 28.f3 f5 29.Kf2 Rf8 30.h4 Kg7 31.g3 Be6 32.Ra5 Kf6 33.e4 fe4 34.fe4 Bg4 35.Ke3 Ke7 36.Be2 Be2 37.Ke2 Ke6 38.Ra3 Rf7 39.Rd3 Rg7 40.Rc3 g5 41.Kf3 Rf7 42.Kg4 gh4 43.gh4 Rf1 44.Kh5 Rb1 45.Rc4 Re1= 46.d5 cd5 47.ed5 Kd5 48.Rc5 Kd6 49.Kh6 Re4 50.h5 Rb4 51.Rg5 Rb5 52.Rg2 Re5 53.Kg6 Re6= 54.Kf7 Re7 55.Kf8 Rh7 56.Rh2 Kc5? 57.Kg8+/– Rh5 58.Rh5+– Kc4 59.Rh4 Kc3 60.Rh3 Kc4 61.Kf7?? b5= 62.Rh4 Kc3 63.Ke6 b4= 64.Kd5 b3 65.Kc5 unclear. marekt – traffic, ChessWorld.net, 2004.

10.Bc4 Be6 11.Qc2 Nf4 12.Kf1 Bc4 13.Qc4 Ng6 14.d4 Nh4 15.Nbd2 Nf3 16.Nf3 Qf6 17.Kg1 Qf5 18.h4 Ne7 19.h5 h6 20.Re1 Qd5 21.Qc3 Nc6 22.Nd2 f5 23.Rh3 Nb8 24.e4 fe4 25.Qb3 Qb3 26.Rb3 Nd7 27.Ne4 Nb6 28.f3 Rab8 29.Kf2 Nd5 30.Rb5 ½–½. Boehnke,Hartmut (2045) – Urbanek,Stepan (2120), corr ICCF EU/EM/M/005, 2002.

10.d4 Nf4 11.g3 Nd5 12.Bg2 Nb6 13.Nbd2 Bf5 14.0–0 Bd3 15.Re1 Na5 16.Bc3 Nac4 17.a4 Nd5 18.Nc4 Bc4 19.Ba5 Nb6 20.Qc2 Be6 21.e4 Rc8 22.Bc3 c6 23.Rab1 Qe7 24.a5 Nc4 25.Qd3 b5 26.ab6 Nb6 (26...ab6? 27.d5 Na3 28.Rb6 cd5 29.ed5+–) 27.Qc2 Nc4 28.e5 Ba3 29.h4 h6 30.Nd2 Nd2 31.Bd2 Qd7 32.Qa4 Bf8 33.Ra1 ½–½. Daatselaar,Jan Bart van (2200) – Gool,Jeroen J. W. van (2030), KW2007A ICCF, 2007.

10.Be2 Nce7 11.0–0 c5 12.d3 b6 13.Nbd2 Nc6 14.Rc1 Bb7 15.Ne4 Bf8 16.Ng3 g6 17.Qd2 Rc8 18.Bd1 Nf6 19.Bb3 Na5 20.Ba2 Bg7 21.Bc3 Bf3 22.gf3 Nc6 23.Qb2 Qe7 24.f4 Rcd8 25.Bc4 h5 26.Rfe1 Kh7 27.Bb5 Rc8 28.Nf1 Red8 29.Nd2 Qe6 30.Kh1 Qf5 31.Nf3 Ne8 32.Bg7 Ng7 33.Rg1 Rc7 34.Rg5 Qh3 35.Nd2 Ne6 36.Rg3 Qf5 37.Ne4 Kh6 38.Bc4 Rdc8?? (better is 38...Rcd7+=) 39.Nd6+– (39.Nd6 Ncd4 40.Nf5 Nf5 41.Rg2+–) 1–0. Buczinski,Henryk (2200) – Sifre Calafat,Francisco (1820), DJ–CT18/pr37, 2011.

10.h3 Bd7 11.Bc4 Nb6 12.Ba2 Be6 13.Be6=+ Re6 14.Qb3 Rg6 15.g4 Na5–/+ 16.Qb5 Nbc4 17.Bc3 c6 18.Qf5 Bc7 19.g5? Nb3–+ 20.h4? Qc8?? 21.Qd3?? Qg4–+ 22.Ke2 Rd8 23.Qc2 Na1 24.Ba1 Rgd6 25.d4 Ne3 (25...Ne3 26.Ke3 Qe6 27.Ne5 Rd5–/+) 0–1. Gedigk,D – Landgraf,M, corr SOK–90–53, 1990.

9.Bb5 Qd6

10.0–0 a6 11.Ba4 Bg4 12.h3 Bh5 13.g4 Bg6–/+ 14.Bc2 Rad8 15.Nh4 Bc2–+ 16.Qc2 Qh6 17.Nf5 Qh3 18.f3 Nf4! 19.Rf2 Nd3 20.Rh2 Ne1 21.Rh3=+ Nc2 22.Ng7 Re3 23.de3 Rd1 24.Kg2 Na1 25.Ba1 Rb1 26.Bf6 Rd1 27.Nf5 Rd2 28.Kg3 Bf8 29.Rh5 Bd6 30.f4 Ra2–/+ 31.Rg5 Kf8 32.Nh6 Ne7 33.Rg7=+ Ra3 34.Rh7 Ke8 35.Kf2 Bc5 36.Be7 Ke7 37.Rf7 Ke8 ½–½. Hoffman,Piotr – Sokolowski,M, corr 1. AMM Poland, 1991.

10.0–0 Bg4 11.Nc3 Rad8 12.Nd5 Qd5 13.Bc6 bc6 14.d4 Bd6 15.h3 Bf5 16.Nh2 Re6 17.Qb3 Qe4 18.Rfe1 Bh3 (18...Bh3 19.gh3 Rg6 20.Ng4 h5–/+) 0–1. Woschkat,Karl_Heinz – Leisebein,Peter (1625), DESC, 1999.

10.a3 Qc5 11.Be2 Ba5=+ 12.0–0 Bf5 13.Qb3 Rad8 14.Bc4 Bb6 15.d4 Qd6 16.Bc3 Bg6 17.Rc1 Ne3 18.fe3 Re3 19.Kh1 Nd4 20.Qd1? Nf3–+ (20...Nf3 21.Qd6 cd6 (21...Rd6?! 22.gf3 Rf3 23.Re1–+) 22.gf3 d5–+) 0–1. Miraglia,Jorge – Hjortstam,Kurt, email 4AMM–03, 1997.

10.a3 Bc5 11.Qc2 =.

10.Qc2 Bd7 11.a3 Ba5 12.Nc3 =+.

10.Qc2 Bg4 11.Bc6= bc6 12.Nc3 Bf3=+ 13.gf3 Qf4 14.Rg1 Nc3 15.Bc3+= Bf8 16.Ke2 Re6 17.Qb2 g6 18.Qb7 Rd8 19.Qa7 Qh2 20.Rg3 Rd7 21.Rag1 h6 22.a4 Qh5 23.Rg4 c5 24.Qb7 Rde7 25.a5+= Qf5 26.Qb1 Qh5 27.Ba1 Bg7 28.Bg7 Kg7 29.Qa1 Rf6 30.Rf4 Qe5 31.Rf6 Kf6 32.a6 Qa1 33.Ra1 Re8 34.a7 Ra8 35.f4 Ke6 36.Kf3 h5 37.Kg3 Kd6 38.Kh4 Kc6 39.f5 Kb7 40.fg6 fg6 41.f4 Ra7 42.Ra7 (42...Ka7 43.e4+–) 1–0. SandmanJr (2730) – razzle (2655), ICC, 1999.

9.Bb5 Bd7

10.0–0 Bd6 11.Qb3 Bg4 12.Ne1 Qd7 13.Qc4 Be6 14.Nf3 Rab8 15.e4 Nf4 16.Qc3 f6 17.Re1 a6 18.Ba4 Bh3 19.g3 Ng2 20.Re2 Qg4 21.Bc2 Kh8 22.d4 Bb4 23.Qb3 Na5 24.Qd3 Nf4 25.Qe3 g5 26.Rd2 Nc4 27.Qb3 a5 28.a4 Nb2 29.Ra3 Nc4! 30.Qc4 Ba3 31.Ne1 Bb4 32.Nc3 c6 33.Bd3 Nd5! 34.Rc2 Qd7 35.Na2 Be1 36.ed5 cd5 37.Qc7 Bd2! 38.f3 Be3 (38...Be3 39.Kh1 Bf2–+) 0–1. bambinik – aesculap, internet, 2001.

10.Nc3 Nc3 11.dc3 =+.

10.Bc6 Bc6–/+ 11.0–0 Bb5 12.Re1 c5 13.Nc3 Nc3 14.dc3 Ba5 15.Qb3 Bc6 16.Rad1 Qb6 17.Qb6 Bb6 18.Nd2 Rad8–/+ 19.Nb1 c4 20.Na3 Rd1 21.Rd1 Rd8 22.Rd8= Bd8 23.Nc4 Bd5 24.Na5?? Ba5–+ (24...Ba5 25.a3 b5–+) 0–1. Stummerer – Zimmer,Georg, corr SOK–90–66, 1990.

10.0–0 a6

11.Bc6 Bc6 12.Nd4 Bd7 13.Qb3 Qg5 14.f4 Qh5 15.Nc3 Bc3 16.Bc3 c5 17.Nf3 b5 18.Be5 Be6 19.Qa3=+ f6 20.Bb2 Nb4–/+ 21.Ne1 Bc4 Black is in command 22.Rf2 a5 23.d4 Nd5 24.Nc2 b4 25.Qa4 Ne3 26.Ne3 Re3 27.Qc2 Qd5 28.dc5 Rae8 29.Qd2 Rd3 30.Qc2 b3 31.Qc1 Rd8 32.h3 Rd1 33.Qd1 Qd1 34.Rd1 Rd1 35.Kh2 ba2 36.c6 Kf7 37.Rc2 Be6 38.c7 Bc8 (38...Bc8 39.Bf6 Kf6 40.Ra2 Rc1 41.Ra5 Rc7–+) 0–1. Wittal,Werner (1700) – Kuni,Richard (1700), TT–02 TSC, 2002.

11.Bc6 Bc6 12.Ne5 Bb5 13.d3 Bd6 14.Nc4 Nb4 15.a4 Bc4 16.Qg4 g6 17.dc4 h5 18.Qe2 Qh4 19.g3 Qg4 (19...Qg4 20.Qg4 hg4+=) 0–1. Van Rooijen,Peter (1705) – Fedorko,Andrew (1960), IECG, 2001.

11.Be2 Qe7 12.a3 Bd6 13.Nc3 Nc3 14.Bc3 Ba3 15.Qc2 b5 16.Bg7 Kg7 17.Qc3 f6 18.Qa3 Qa3–/+ 19.Ra3 Reb8 20.Rb1 Nd8 21.Rc1 Ra7 Black gets in control 22.Rca1 b4 23.Ra6 Ra6 24.Ra6 b3 25.Ra1 b2 26.Rb1 Be6 27.Bd3 Ba2 28.Rf1 b1Q 29.Bb1 Rb1 30.Rb1 Bb1 31.d4 Bd3 32.Nd2 Nb7 33.f3 f5 34.h3 c5 35.dc5 Nc5 36.g4 Kf6 37.Kg2 Ke5 38.Kg3 Ne6 39.f4 Kf6 40.Nf3 Be4 41.Nh4 Nc5 42.Nf5 Bf5 43.gf5 Kf5 44.Kh4 Kg6 45.Kg4 Ne4 46.Kf3 Kf5–/+ 47.Ke2 h6 48.Kf3 Nf6 49.Kg3 Ke4–+ 50.Kf2 Nd5 51.Kg3 Ke3 52.Kg4 Nf4 53.Kh4 h5 (53...h5 54.Kg5 Ke4–+) 0–1. Kruimer,Wim – Milde,Lars, TSC, 2002.

11.Be2 Bf5 12.Nc3 Nc3 13.dc3 Bd6 14.c4 Be4 15.Qb3 Ne5 16.Be5= Be5 17.Rad1 Qf6 18.Ne5 Re5 19.Bg4 Qg5 20.f3 Bc6 21.e4 Ra5 22.Bd7 Qc5 23.Kh1 Ra3 24.Qb2 Ra4 25.Bc6 Qc6 26.c5 h6 27.Rd5 Qb5 28.Rb1 Rc4 29.Qa1 Qc6= 30.Rc1 Qf6 31.Qb1 Rc1 32.Qc1 b5 33.h3 b4 34.c6 Rd8 35.e5 Qe7= 36.Qc4 Rd5 ½–½. Schulz,Hans_Juergen – Thoma,Theo, TT–17.21 ETC, 2005.

9.Bb5 Bg4

10.0–0 Re6 11.a3 Bd6 12.Be2?? Bf3–+ 13.Bf3 Bh2! 14.Kh2 Qh4 15.Kg1 Rh6 16.Bh5 Rh5 17.f4 Nde7 18.Nc3 Nf5 19.Rf3 Ng3?? 20.Kf2?? Nh1–+ 21.Ke2 Qg4 22.Qg1 Rd8 23.Ne4 Rh6 24.Nf2?? Nf2 25.Qf2 Rg6 26.g3 Rgd6 27.Bc3 b5 28.Qf1 a5 29.Qb1?? b4! 30.ab4 ab4 31.Bb4 Nb4 32.Qb4 Rd2 (32...Rd2 33.Qd2 Rd2 34.Kd2 Qf3–+) 0–1. Cerny,Lumir – Kudela,Stanislav, Open Teplice CZE, 2006.

10.0–0 a6

11.Bc6 bc6 12.h3 Bh5 13.Nc3 Bd6 14.Na4 Rb8 15.Rb1 Qd7 16.Re1 Nb4 17.d4 Bg6 18.a3 Bb1 19.Qb1 Nd5 20.Nc5 Bc5 21.dc5 Rb5 22.Qc2 Reb8 23.Ba1 Rb3 24.Qc1 Ne7 25.e4 Rf3 26.gf3=+ Qh3 27.Qf4 Qd7 28.Qg4 Qg4 29.fg4 Ng6 30.Bd4 f6 31.f3 Rb3 32.Re3=+ Re3 33.Be3= Ne5 34.Kf2 ½–½. Korchut,Adam – De Visser,Arno, corr ICCF TT, 2003.

11.Bc6 bc6 12.h3 Bh5 13.g4 Bg6 14.Ne5 Qf6 15.d4 Rad8 16.Ng6 Qg6 17.a3 Bd6 18.Nd2 c5 19.Nc4 cd4 20.Bd4 c5 21.Bb2 Qe4 22.Nd2 Qe6 23.Qf3 Ne3 24.fe3 Bh2! (worse is 24...Qe3 25.Qe3 Re3 26.Nc4 Rg3 27.Kf2 Rh3 28.Rad1+= (worse is 28.Nd6 Rd6 29.Bc1 h5+=)) 25.Kh2 Rd2 26.Rf2 Rb2! 27.Rb2 Qe5 28.Kg1 Qb2 29.Rf1 Qb3 30.Kg2 f6 31.Re1 Qa3 32.Qd5 Kh8 33.Kf3 Qc3 34.Qc6 Rg8 35.Rd1 Qc2 36.Qd5 Qh2 37.Qh5 c4 38.Rc1 Qd2 39.Rc4 Qd1 40.Kf2 Rb8 41.Qf7 Rb2 42.Kg3 Qe1 43.Kf4 Qf1 44.Ke4 Qb1 45.Kd5 Qd3 46.Kc6 Rb8 47.Rc5 Qd8 (47...Qd8 48.Qc7 Rc8 49.Qc8 Qc8 50.Kd5 Qb7 51.Kd4 Qb4 52.Rc4 Qd2 53.Ke4 Kg8–+) 0–1. Van Rooijen,Peter (1690) – Martins,Karin, IECG, 2004.

10.0–0 Qd6

11.a3 Ba5 12.Bc6 bc6 13.h3 Bh5 14.Qa4 Bf3 15.gf3 (15.Qa5? Qg6 16.g3 Qh5–+) 15...Re6 16.Kh1 (16.Qa5 Rg6 17.Kh1 Qe6 18.Kh2 Rh6 19.Kg1 Qh3 20.Qd5 Qh2) 16...Rh6 17.Qg4 Nf6 18.Bf6 Qf6 19.Nc3 Bc3 20.dc3 Qc3 21.Rg1 Rg6 22.Qd7 Rg1 23.Rg1 Qa3 24.Qc6 Qf8 25.Qc7 a5 26.Ra1 a4 27.Qc6 a3 28.Ra2 g6 29.f4 Ra7 30.Kh2 ½–½. marekt – notlesu, ChessWorld.net, 2003.

11.Nc3 Rad8 12.Rc1 a6 13.Be2 Nc3 14.Bc3 Ba3 15.Rb1 b5 16.d4 b4 17.Bb2 Bf5 18.Bd3 Bd3 19.Qd3 Bb2 20.Rb2 Ne7 21.Rc1 Nd5 22.Rc4 a5 23.Qb3 Qa6 24.h3 Re6 25.Rc5 Qa8 26.a4 c6 27.Rbc2 Nc3 28.R2c3 bc3 29.Qc3 Rd5 30.Rc4 f6 31.Ne1 Qb7 32.Nd3 Red6 33.Nf4 Rg5 34.Qc2 Qc7 35.e4 h6 36.d5+/– Re5 37.dc6 Re8 38.g3 Rc8 39.Nd5 Qf7 40.Rc5 Kh8 41.c7 f5 42.Rb5 Rd7 43.Rb8+– Qg8 44.Rc8 Qc8 45.Qb2 Rc7 46.Nc7 Qc7 47.ef5 Kg8 48.g4 Qd8 49.Qb5 Kf8 50.Kg2 Qd2 51.Qb8 Kf7 52.Qc7 Kf8 53.Qe5 Qb4 54.Qa1 h5 ½–½. Woschkat,Karl_Heinz – Baer,Werner, Tiger SC, 2001.

10.Bc6 bc6

11.0–0 Rb8 12.Na3 Bf3 13.Qf3 Bd2 14.Nc4 Bc3 15.Rfb1 h6 16.Qd1 Qh4 17.Qd3 Qe4 18.Qe4 Re4–/+ 19.Bc3 Rb1 20.Rb1 Nc3 21.Rb8 Kh7 22.Na5 Na2 23.Ra8 Ra4 24.Ra7 c5 25.Kf1 c4 26.Ke1 c3 27.Kd1 Nb4 28.Nc6 Ra7 29.Na7 c6 30.f3 Kg6 31.Nc8 Kf6 32.Nd6 Ke6 33.Nc4 Kd5 34.Na3 c5 35.e4–/+ Kd4 36.Ke2 g5 37.h3 h5 38.g3 h4 39.gh4 gh4 40.Nb5 Kc4 (40...Kc4 41.Nc3 Kc3–+) 0–1. Dupont,Gerhard – Mueller, corr DDR, 1985.

11.0–0 Rb8 12.h3 Bh5 13.Na3 Bf3 14.Qf3 Bd2 15.Nc4 Bc3 16.Bc3 Nc3 17.Qc6 Re6 18.Qc5 a6 19.Qa5 Ne4 20.Rab1 h6 21.Rb8 Qb8 22.Rd1 Rc6 23.Qd5 Qe8 24.a3 ½–½. Offenborn,Heinz – Breitschuh,Ulrich, M1544E BdF, 1997.

11.0–0 Bd6 12.Na3 Rb8 13.Nc4 Bf3 14.Qf3 Bh2 15.Kh2 Qh4 16.Kg1 Qc4 17.Bd4 Qa4 18.Qd1 Qd1 19.Rfd1 Rb7 20.Rdc1 Ne7 21.Bc5 Kf8 22.d4 Rd8 23.a4 Ke8 24.Rab1 Rdb8 25.Rb7 Rb7 26.Be7 Ke7 27.Rc6 Kd7 28.Rc5 a6 29.Rd5 Kc6 30.Rd8 h5 31.Rf8 f6 32.Rf7 Rb4 33.Rg7 Ra4 34.Rf7 a5 35.Rf6 Kd7 36.Rh6 Ra1 37.Kh2 a4 38.Rh5 a3 39.Kg3 Kc6 40.Rc5 Kd6 41.Kf3 a2 42.Rc2 Kd5 43.g4 c6 44.g5 Kd6 45.Ke4 Rg1 46.Ra2 Rg5 47.f4 Rh5 48.f5 Rh4 49.Kf3 Rh3 50.Kf4 Rh4 51.Kg3 Rh1 52.e4 Rf1 53.Ra7 Rg1 54.Kf2 Rh1 55.e5 Kd5 56.Rd7 Ke4 57.f6 Kf5 58.f7 (58…Rh8 59.Re7+–) 1–0. Hiarcs 7.32 – Fritz 5.32, 1999.

11.0–0 Re6 12.d3 Rb8 13.a3 Bd6 14.Ra2 Rh6 15.h3 Bh3 16.gh3 Rg6 17.Kh1 Qd7 18.Ng1 Rg1! 19.Kg1 Qh3 20.f4 Ne3 21.Qf3–/+ Qe6 22.Nc3 Bc5 23.Bc1 Nd1 24.Kh1 (24.Kh1 Nc3 25.Rg2–/+) Seack,Ingo – Hellborg,Klas Ragnar, corr ICCF Cup8/9 V187, 1990.

9.Bc4 Be6

10.0–0 Ne3 11.de3 Bc4 12.Nbd2 Bf1 13.Nf1 Qd1 14.Rd1 Rad8 (14...Rad8 15.Rc1 Bd6–+) 0–1. Patel,Reshma (1700) – Laine,Jari (1840), FICGS, 2006.

10.Qc2 Qe7 +=.

10.Qc2 Be7 11.a3 Bf6 12.d4 Na5 13.Be2 Rc8=+ 14.Nbd2 g6 15.0–0+= Bg7 16.Rab1 Nf6 17.Bc3 Nc6? 18.Rb7+– Bd5 19.Rbb1 Qe7 20.Bd3 Nd8 21.Bb4 Ne6?? 22.Be7 (22.Be7 Re7 23.e4+–) 1–0. Eckstein,Michael – Heiss,H, BdF, 1975.

10.Qc2 Nf4 11.0–0 Bc4 12.Qc4 Nd3 13.Bd4 Nd4 14.ed4 Nf4 15.Qb4 Qd7 16.Qb3 Qg4+/– 17.g3 Re6? 18.Ne5?? Ne2= 19.Kg2 Qd4 20.f4 Rae8 21.Nc3 Qd2 Opening the d–file gets White a lot of play 22.Ne2 Qe2 23.Rf2 Qe4+/– 24.Kg1 c5 25.Rd1 h5 26.Rd7+– R6e7 27.Re7 Re7 28.Qd1 (28.Qd1 Re8 29.Qh5 Qb1 30.Kg2 Qe4 31.Kh3+–) 1–0. Rindalsholt,Per Arne – Marjan,Dusan, corr YUG–NOR, 1980.

10.Qc2 Bf8 11.a3 Nf4 12.0–0 Bc4 13.Qc4 Nd3 14.Bd4 Nd4 15.Nd4 Ne5 16.Qc3 c5 17.Ne2 Qd6 18.d4 (18.Qb3 Rab8+=) 18...Ng4 19.Ng3 cd4 20.Qd4 Qd4 21.ed4 Rad8 22.Rd1 Bc5! (22...Bc5 23.Ne2 Bd6–+) 0–1. Schaar,Joerg (1940) – Friedrich,Fritz (2200), RSX16D – Goldener Oktober–1, 2007.

10.Be2 Be7 11.Nc3 +=.

10.Be2 Nf4?? 11.0–0?? (better is 11.ef4 Bc4 12.Ne5 Be2 13.Ke2+/–) 11...Nd3 12.Bc3 Bc4 13.a4 Qd5 14.Na3 Bb3 15.Qb1 Bc3 16.dc3 Nde5 0–1. Kovacevic,Bozo (1920) – Vucinic,Gojko (2210), Obrenovac SER, 2012.

9.Bc4 Bg4

10.0–0 Ne5 11.Be2 Nf3 12.Bf3 Bf3 13.Qf3 c5 14.Nc3 Nb6 15.Rfd1 Nc4=+ 16.Rab1 Qd3 17.Nd5 Nd2=+ 18.Qg3 Qg6 19.Rbc1 Qg3–/+ 20.hg3 Rad8 21.Nb4 cb4 22.f3? b3 23.Bc3 Nc4 24.Rd8 Rd8 25.ab3 Ne3 26.Bd4 Nf5 27.Ba7 Ng3 28.Rc7 b5 29.Rb7 Ne2 30.Kf2 Nc3 31.Bd4 Nd1 32.Ke2 h5 33.Ba1 Ra8 34.Be5 Re8 35.Rb8 Rb8–/+ 36.Bb8 Nc3 37.Kd3 Na2 38.Kd4 Nb4 39.Bd6 Nc2 40.Kc5 b4 41.Kc4 g5 42.Bb4 Nb4?? 43.Kb4+– f5 44.Kc4 g4 45.Kd4 h4 46.Ke3 h3 1–0. Kozun,Piotr – Sokolowski,Mieczyslaw, corr 1. AMM Poland, 1992.

10.Qb3 Na5 11.Qc2 Bf3 12.gf3 Ne3! 13.Bf7 Black creates threats along the open e–file 13...Kf7 14.fe3 Re3 15.Kd1 Kg8 16.Rg1 Bf8 17.Qa4 Qd5–+ 18.Nc3 Qf3 19.Kc1 Re5 20.Qd4 Nc6 21.Qc4 Kh8 22.Rf1 Qg2 23.Qf4 Bd6 24.Qf7 Nb4 25.a3 Nd3 26.Kc2 Nb2 27.Kb2?? Qd2 (27...Qd2 28.Kb3 a5–+) 0–1. Brix,Berthold – Metschan,Helmuth, BdF, 1975.

10.h3 Bh5 11.0–0 Qd6 12.a3 Ba5 13.g4 Nb6 14.Bb3 Bg6 15.Nh4 Be4 16.Nf5 Bf5 17.gf5 Nd7 18.Qh5 Qe7 19.Nc3 Nf6 20.Qg5 Ne5 21.f4 Bc3 22.Bc3 Ned7 23.Kh2 Kh8 24.Rg1 Rg8 25.a4 c6 26.Rac1 Raf8 27.a5 Nc5 28.Bb4 b6 29.ab6 ab6 30.Qg2 Rc8 31.Bc5 bc5 32.Kh1 Rc7 33.Bc4 Rd7 34.Rc2 Nd5 35.Kh2 Qd6 36.Qg4 Rb7 37.Ra2 Qb8 38.Qf3 Rd7 39.Qg3 Qe8 40.Qg2 Qd8 41.Rb2 Qf6 42.Rb3 Nb4 43.Rd1 Qf5 44.Qg4 Qg4 45.hg4 Rb8 46.Kg3 Kg8 47.Kf3 Rdd8 48.Ra3 Ra8 49.Ra8 Ra8 50.Rb1 Ra4 51.d3 Kf8 52.Rh1 Ra3 53.Ke2 h6 54.Rh5 Ra5 55.Rf5 Nd5 56.Bd5 cd5 57.Rd5 Ra2 58.Kf3 Rc2 59.Rd8 Ke7 60.Rc8 Rc3 61.Rc7 Ke8 62.Ke4 Kf8 63.Rb7 g6 64.f5 gf5 65.gf5 Kg7 66.d4 cd4 67.ed4 Rc4 68.Rb3 h5 69.Rh3 Kh6 70.Ke5 Rc6 71.d5 f6 72.Kd4 Rd6 73.Kc5 Rd8 74.Rg3 h4 75.Rg1 Kh5 76.d6 h3 77.Kd5 h2 78.Rh1 Kg5 79.Rh2 Kf5 80.Rf2 Kg6 81.Kc6 f5 82.d7 Kg5 83.Kc7 Rf8 84.d8R Rd8 85.Kd8 f4 86.Ke7 Kf5 87.Kd6 Ke4 88.Re2 Kf3 89.Re8 Kg2 90.Rg8 Kf2 91.Kd5 f3 92.Ke4 Ke2 93.Rb8 f2 94.Rb2 Ke1 95.Ke3 f1N 96.Kd3 Ng3 97.Rg2 Nf1 98.Re2 Kd1 99.Re7 Nh2 100.Rh7 Nf1 101.Rg7 Ke1 102.Rg2 Kd1 ½–½. Bonetti,Shane – Tinker, ICC, 2002.

10.0–0 Nb6

11.Bb5 Qd5 12.Be2 (12.Bc6 Qc6 13.Ne5 Bd1 14.Nc6 bc6 15.Rd1 Rad8=) 12...Rad8=+ 13.Nc3 Qh5 14.h3 Be6 15.Nd4 Qg6 16.Ne6 (16.Bh5 Qg5 17.Nc6 bc6=+) 16...Qe6=+ (< 16...fe6 17.Bh5 Qd3 18.Be8 Re8 19.a3+/–; 16...Re6?! 17.d4=) 17.a3 Bc3 18.Bc3 Nd5 19.Bb2 Nf4 20.Bg4 f5 21.ef4 fg4=+ 22.hg4 Qf7 23.Rb1 b6 24.Qa4 Na5 25.Bc3 Nb7 26.Qa7 Nc5 27.Rbe1 Qf4 28.Re8 Re8 29.d4 Ne4 30.Qa4 Rf8 31.Be1 Qf7 32.f3+= Nf6 33.Bg3 Ng4 34.Rc1 Ne3 35.Rc7 Qa2 ½–½. Pohl – De Smet, corr ICCF TT–4–90 SF, 1995.

11.Be2 Bf5 12.Nc3 Bd3 13.a3 Bc5 14.Rc1 Nc4 15.Na4 (15.Qb3 Bb6=+) 15...Nb2–/+ 16.Nb2 Be2 17.Qe2 Ba3 18.d4 (18.Rb1 a5–/+) 18...a6 (Better is 18...Nd4!? 19.Nd4 Qd4–+) 19.Rc2 Qd5 20.Nc4 Bb4 21.Qd3 f6 22.Nfd2 b5–+ 23.Nb2 Re6 24.Rfc1 Rd8 25.Nb3 Be7 26.Nc5 Nb4–/+ 27.Qd2 Nc2 28.Ne6 Qe6 29.Qc2 Qa2 (30.Rf1 c5 31.dc5 Rc8=+) =+. Wartig,Wolfgang – Koegler,Klaus, corr ICCF–Cup8/9 V167, 1990.

9.Be2 b6

10.0–0 Bb7

11.Na3 Qe7 12.Nc2 Bd6 13.Bc4 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.Nd4 c5 17.Nf3 Qf6 18.Rc1 Rad8 19.d4 cd4 (better is 19...Nc7!?–/+) 20.Qd4= Qd4 21.Nd4 Nf4 22.Nf3 (22.Rfd1!? Ng2 23.Bb5+=) 22...Nh3 23.Kh1 Bf3 24.gf3 Rd2 25.Kg2 Ng5 26.a4 (26.Rfd1 Red8 27.Rd2 Rd2+=) 26...h5 (26...Re3 27.Rcd1 Rd1 (worse is 27...Nf3 28.Rd2 Nd2 29.Rd1+/–) 28.Rd1 Re8+=) 27.Rfd1= Red8 28.Rd2 Rd2 29.Bb5 Ne6 30.Rc8 Rd8 31.Rc2 Kf8 32.f4 g6 33.Be2 Rd5 34.Rc8 Ke7 35.Bb5 Rd8 36.Rc2 a5 37.Kf3 Rd6 38.Rc8 Rd8 39.Rc6 Rd6 40.Rc8 Kf6 41.Rb8 g5 42.fg5 Ng5 43.Kf4 Ne6 44.Kg3 Ng7 ½–½. Raddatz,Uwe (1890) – Langendijk,Andre (1890), Muensterland Verbandsklasse–A, 2007.

11.d4 Bd6 12.Nc3 (12.Bc4 Na5 13.Bb5 Bc6 14.Bc6 Nc6 15.Qa4 Ncb4 6.Nc3 a6 17.e4=) 12...Nc3 13.Bc3 Nb4 14.Bb4 Bb4 15.Qb3 Bd6 16.Rac1 a6 17.Rfd1=.

11.d4 Qd7 A) 12.Bd3 Bd6 (12...Nf6 13.Nc3 Rad8 14.a3 Be7 15.Rc1 a6 16.Qc2 Qg4 17.d5+=) 13.Qc2 Nf6 14.a3 Qg4 15.d5 Nd5 16.Bh7 Kh8 17.Bf5=; B) 12.Qc2 Bd6 13.a3 Nce7 14.Bd3 f5 15.Nbd2 a6 16.Nc4 Qe6 17.e4=; C) 12.a3 Bd6 13.Qc2 Nce7 14.Bd3 f5 15.Nbd2 Rad8 16.Nc4 a6 17.Nce5+=.

11.d4 Qe7 12.a3 (12.Bd3 Bd6 13.Qc2 Ncb4 14.Qd2 Nd3 15.Qd3 Nb4 16.Qc3 Bf3 17.gf3–+; 12.Qc2 Bd6 13.a3 Rad8 14.Bb5 Qd7 15.Rc1 Ncb4 16.Bd7 Nc2 17.Be8+–) 12...Bd6 13.Bd3 (13.Qc2 Rad8 14.Bb5 Qd7 15.Rc1 Ncb4 16.Bd7 Nc2 17.Be8+–) 13...Rad8 14.Re1 (14.Qc2 Kh8 15.Bb5 Na5 16.Be8 Re8 17.Nbd2+/–) 14...Qd7 15.Qc2 h6 (15...Kh8 16.Bf5 Qe7 17.e4+=) 16.Nbd2 (16.Bh7 Kh8 17.Bf5+=) 16...Na5 17.g3 (17.Rac1+=) 17...c5 (17...Qg4 18.Ne5 Be5 19.de5+=) 18.e4+/– Ne7 (18...c4 19.Nc4 Rc8 20.ed5 Nc4 21.Re8 Qe8 22.Bc4 Bd5 23.Nd2=) 19.d5 Ng6 20.e5 (better is 20.Rab1!?+/–) 20...Ne5= 21.Be5 (21.Ne5? Be5 22.Be5 Qd5–+) 21...Be5 22.Re5 Re5 23.Ne5 Qd5 24.Ndf3 Nb3 25.Re1? (25.Rd1 Nd4 26.Bh7 Kf8 27.Rd4 cd4 28.Bd3–/+) 25...Nd4–+ 26.Bh7 Kh8 27.Nf7 Qf7 28.Nd4 cd4 (28...Rd4 29.Bg6 Qd7 30.Re8 Qe8 31.Be8+–) 29.Be4 (29.Qd3 Rf8 30.Re2 Bf3–+) 29...Be4 30.Qe4 d3 31.Rd1 (31.Kg2 Qb3 32.Qe7 Qd5 33.Kg1 d2–+) 31...d2 (31...Qb3 32.Rd2 Qa3 33.Qc4–+) 32.Qe2 Qd5 33.a4 Qd7 34.h4 Qd5 35.Qe3 Qd3 36.Qe7 Rc8 37.Kh2 a6 38.Qe6 Rf8 39.Kg2?? (39.Qe3 Rd8 40.h5–+) 39...Qf3 0–1. Chashchev,S (2375) – Larin,M (2195), Chigorin Memorial, 2015.

11.d4 Qf6 12.Bd3 Be7 (12...h6 13.a3 Ba5 14.Qc1 Qd6 15.Nbd2 Qf6 16.Nc4 b5 17.Na5+/–) 13.a3 Rad8 14.Qc2 h6 15.Bh7 Kh8 16.e4 g6 17.ed5+=.

9.Be2 Qd6

10.0–0 Qg6

11.a3 Bd6 12.Nc3 (12.Bb5 Bh3 13.Ne1 Bd7 14.d4 Bg4 15.Qb3 Qh5 16.g3 Na5–/+) 12...Bh3 13.Nh4 (13.Ne1 Be6 14.Qc2 Nc3 15.Bc3 Bf5 16.d3 Ne7=) 13...Nc3 14.Bc3 (14.Ng6 Nd1 (14...Ne2?? 15.Qe2 Bg2 16.Kg2 fg6 17.Rae1+–) 15.Rfd1 Be6+= 16.Nh4 g5+=) 14...Qg5–/+ 15.Qa4 a6 16.Bb2 (16.Qc4 Ne7–/+) 16...b5 17.Qc2 Qh4 18.gh3 Qh3 19.f4 Ne7 20.Bd3 c5 21.Be4 Rab8 22.Rf3 Qh4 23.Rg3 Ng6 24.Bd5 Bf8 25.Qf5 Qe7 26.Rc1 c4 27.d3 cd3 28.Qd3 Rbd8 29.Qb3 Rd6 30.Rd1 (30.f5 Red8 31.Bf7 Qf7 32.Qf7 Kf7 33.fg6 Rg6 34.Rc7 Ke8 35.Rg6 hg6–/+) 30...Red8 31.Rg5 (31.f5 Ne5–/+) 31...Kh8 32.Rd4 Nf4 33.ef4 Qe1 34.Kg2 h6 35.Re5 Rg6 36.Kf3 Qf1 (36...Qf1 37.Ke3 Bc5–/+) 0–1. Sawamura,Tetsushi – Buczinski,Henryk, corr, 2003.

11.Nc3 Bc3 12.dc3 Bh3 +=.

11.g3 Bh3–/+ 12.Nh4 Qh6 (12...Qe6 13.Ng2–/+) 13.Ng2 Rad8 14.d4 Bg2 (14...Qf6!?–/+) 15.Kg2= Re3 16.Bc1 Nf4 17.gf4 Qh3 18.Kg1 Re2! 19.Be3 (19.Qe2 Deflection from d4 19...Nd4) 19...Rd6 20.f5 Rg6!? (20...Rg6 21.fg6 Bd6 22.gh7 Kh8 23.Re1 Bh2 24.Kh1 Bg3 25.Kg1 Qh2 26.Kf1 Rf2 27.Bf2 Qf2#) 0–1. Roeseler,R – Lohrer,P, corr FRG, 1971.

11.Kh1 Bg4 12.Nc3 Nc3 (12...Rad8 13.Nd5 Rd5 14.Qb3+=) 13.dc3 (13.Bc3 a5+=) 13...Bc5 (13...Bd6 14.h3 Qh5 15.Nd4 Be2 16.Qe2+=) 14.Nd4 (14.Qa4 Bd6+=) 14...Be2 (14...Ne5 15.Bg4 Ng4 16.h3+=) 15.Qe2 Qe4 16.Rad1 Bb6 (16...Nd4 17.cd4 Bd6 18.d5=) 17.Qf3 (17.Nc6 Qc6 18.Qg4 Re6=) 17...Qf3 18.Nf3 (worse is 18.gf3 Ne5–/+) 18...Rad8 19.Nd4 (19.c4 f6=) 19...Ne5+= 20.Rfe1? (better is 20.Kg1+=) 20...c5–+ 21.Nf5 (21.e4 h6–+) 21…Nd3 (21...Nd3 22.Rd3 Rd3–+) 0–1. Soja,Rudolf – Thomson,Thomas, corr ICCF Cup8/9 V145, 1990.

10.a3 Ba5

11.0–0 a6 12.Qa4 b5 13.Qh4 Bb7 14.a4 b4 15.Bc4 h6 16.d3 Rad8 17.Nbd2 Qg6 18.Ne4 Bb6 19.Rac1 Na5 20.Ne5 Qf5 21.Qg3 Qh7?? (better is 21...Nc4 22.Nc4 Qg6=) 22.Bd5+– (22.Bd5 Kf8 23.Bf7 Be4 24.de4+–) 1–0. Teichmann,E (2385) – Steadman,M (2285), Australian Masters, 2010.

11.0–0 Bg4 12.Qa4 Bh5 13.Nd4 Be2 (13...Nb6 14.Qd1 Be2 15.Ne2 Nc4 16.Qb3 N6e5 17.Be5 Ne5 18.Qb7 Rab8) 14.Ne2 Nf6 (14...Rad8 15.Nd4 Re4 16.Nc3 Rg4 17.f3 Nb6 18.Qb5 Nd4) 15.Ng3 (15.Bf6 Qf6 16.Nbc3 h6 17.d4 Rad8 18.Qb5 b6) 15...Qe6 (15...Bd2? 16.Bf6 (16.Nd2?! Qd2 17.Bf6 gf6+/–) 16...Qf6 17.Nd2+–; 15...Rad8 16.d4 Nd5 17.Qb3 h6 18.Nc3 Bc3) 16.Qh4 (16.Rc1 Rab8 17.Bf6 Qf6 18.d4 b5) 16...Ne5 17.f4 (17.Bc3 Nc4 18.Bf6 Qf6) 17...Ned7 (17...Neg4!? 18.Bd4 (18.h3 Bd2) 18...Bb6+= (18...Rad8+=)) 18.Qg5+= Qb6 19.Nf5 g6 20.Bd4 c5 21.Be5 Qe6 22.Nd6 Re7 23.Nb7 (better is 23.Bf6!? Nf6 24.Qc5+/–) 23...Ne4= 24.Qh6 Ne5 25.Na5 Ng4 (25...Nd3 26.Qh4 Rae8–/+) 26.Qh4= f5 27.a4 Rd7+= 28.h3 Ngf6 29.Qe1 Rad8 30.Qc1 Nd2 31.Nd2 Rd2 32.Qc5= Rc8 33.Qa7 Rcc2 34.Qa8 Kg7 35.Qb7 Kh6 36.Qf3?? Qe3 37.Kh1 Rg2 38.Qg2 Rg2 39.Kg2 Qd2 40.Rf2 Qa5 41.Raa2 Ne4 42.Rf3 Qd5 (42...Qd5 43.Raa3 Qd2 44.Kf1 Qd1 45.Kg2 Qc2 46.Kg1 Nd2–+) 0–1. Vasut,Karel (2190) – Valickova,M (2030), Highlands Open A, Zdar nad Sazavou CZE, 2007.

11.0–0 Qg6 12.Kh1 Rb8 13.d3 Bg4 (13...Bd7 14.Qa4 Rbd8 15.Rc1 Bb6 16.Qh4 Be3 17.fe3 Ne3 18.Ne1 Bg4 19.Nc3 Nd4=) 14.Qa4 Bf3 15.gf3 b5 16.Qh4 Ne5 17.Rg1 Qe6 18.Be5 Qe5 19.d4 Qf5 =.

11.0–0 Qg6 12.Kh1 Be6 13.d4 Rad8 14.Bd3 Qh5 15.Nbd2 Bd2 16.Nd2 Bg4 17.Qc2 Rd6 18.Rfe1 Rde6 19.Qc5 b6 20.Qc2 Rh6 21.Nf1 Bd7 22.Rac1 Na5 23.Kg1 c6 24.Rcd1 Bg4 25.Rb1 Qh4 26.f3 Bc8 27.g3 Qh5 28.e4 Nc7 29.f4 Rd8 30.Bc3 Nb7 31.f5 Nb5 32.Be2 Qh3 33.Bb5 cb5 34.Bb4 Nd6 35.Qc7 Rd7 36.Qb8 Rd8 37.Qa7 Qg4 38.Qb6 Nb7 39.Qb5 Nd6 40.Qb6 Nb7 41.Qc7 Ra6 42.Be7 Re8 43.Rb7 Bb7 44.Qb7 Raa8 45.Ne3 Qf3 46.Qd5 Rab8 47.e5 Qh5 48.Bb4 Qh3 49.Rc1 Qh6 50.Qe4 Rbd8 51.Rc2 Kh8 52.d5 Qb6 53.d6 f6 54.e6 Rd6 55.Bd6 Qd6 56.Qc6 Qb8 57.Rb2 Qd8 58.Nd5 h6 59.a4 Kh7 60.Rb7 Rg8 61.e7 (61.e7 Qe8 62.Qe8 Re8 63.a5+–) 1–0. Buczinski,Henryk (2200) – Cofer,David, IECG, 2009.

11.0–0 Qg6 12.Kh1 Be6 13.d4 Rad8 14.Bd3 Qh5 15.Nbd2 Bd2 16.Nd2 Bg4 17.Qc2 Be2 18.Be2+= Qe2 19.Rae1 (19.e4 Re4= (19...Nf4 20.d5 Ne7+=)) 19...Qh5 (19...Qg4=) 20.Nf3 Nf6 21.e4 Qg6 22.Ne5 Ne5 23.de5 Nd5 24.f4 Nb6 25.Rf3 (25.Rd1 Rd1 26.Rd1 c6=) 25...Rd7 26.f5 Qc6 27.Rc3 Qb5 28.Qc1 Re5 (28...Na4 29.f6 Re5 30.Rg3+/–) 29.Rg3 f6 (29...Kh8 30.a4 Na4 31.Be5 Qe5 32.f6+/–) 30.Be5+/– (30.Be5 Qe5 31.Rc3+/–) 1–0. Buczinski,Henryk – Erlinger,Guido, corr IECG WC–2014–P–00024, 2010.

11.0–0 Qg6 12.Nh4 Qe4 13.Bf3 Qh4 14.Bd5 Ne7 15.Bb3 c6 16.d3 Bc7 17.g3 Qh3 18.Nd2 Bg4 19.Qc2 Nf5 +=.

9.Be2 Bd6

10.0–0 a6 11.a3 Rb8 12.Qc2 Nce7 13.d3 Ng6 14.Rc1 Bg4 15.Nbd2 Qe7 16.Bf1 Nh4 17.Nh4 Qh4 18.g3 Qh6 19.Bg2 c6 20.Re1 Qg6 21.Nf3 Re7 22.Qd2 Qh5=+ 23.Nh4 Bc7 24.Bd5 Qd5 25.e4 Qd7 26.Qg5 f6 27.Bf6 Rf7 28.Bb2 Bb6 29.d4= Rbf8 30.Nf5 Bf5–/+ 31.ef5 Rf5 32.Qe3? Rd5 33.Rad1 Rd8 34.Qb3 Ba7 35.Re4= Qf7 36.Rde1 R5d7?? 37.Re8 (37.Re8 Re8 38.Re8#) 1–0. Holz auf der Heide – Posselt, 2000.

10.0–0 Bf5 11.Nc3 Nc3 12.Bc3 Nb4 13.Qb3 Nd5 14.Bb2 c5 15.d4 Bg4 16.dc5 Bb8 17.Rfd1 Bh2 18.Nh2 Be2 19.Rd5 Qh4 20.Rd7 Re6 21.Rb7 Rae8 22.Rb8 h5 23.Re8 Re8 24.Re1 Ba6 25.Qc3 f6 26.c6 Re4 27.Nf3 Qg4 28.Nd2 Re5 29.Qb3 Re6 30.f3 Qf5 31.Rc1 Bc8 32.Bd4 1–0. Bulcourf – Lida Garcia, 1980.

10.Nc3 Nc3 11.Bc3 Ne5 12.d4 Nf3=+ 13.Bf3 c6 14.0–0 Qc7 15.g3 Bf5 16.Re1 Be4 17.Be4 Re4 18.f3 Re6 19.Kg2 Rg6 20.f4 f5 21.Rb1 Qf7= 22.Qb3 b6 23.Qf7 Kf7 24.e4 fe4 25.Re4 Re6 26.Rbe1 Rae8 27.Kf3 g6 28.h3 c5 29.dc5 Bc5 30.Re6 Re6 31.Re6 Ke6 32.Ke4 h5 33.g4+= hg4 34.hg4 b5 35.f5 gf5 36.gf5+/– Kd6 37.Be5 Kc6 38.f6 a5 39.f7 Bf8 40.Bd4 b4 ½–½. Melich,Jindrich (2190) – Zacek,Jiri, CZE–chT2b, 1995.

10.0–0 Ne5

11.Nc3 Nc3 12.Bc3 Bf5 13.Nd4 Bd3 14.f4 Be2 15.Qe2 Ng6 16.Rab1 Rb8 17.Qf3 c6 18.Qh5 Be7 19.f5 Nf8 20.Qg4 f6 21.Rf3 Bd6 22.Ne2 Qe7 23.Ng3 c5 24.Nh5 Nd7 25.Qa4 a6 26.Rbf1 Qf7 27.Qh4 b5 28.a4 Qc4 29.Qc4= bc4 30.Rh3 Be5 31.Ba5 Bb2 32.Rf4 c3 33.dc3 Bc1 34.Rg4 Rb1?? 35.Kf2 Rb2+/– 36.Kf1 Re7 37.Rhg3 Kf8? 38.Ng7+– Re3 39.Ne6 Ke7 40.Bc7 Rg3 41.Rg3 Bg5 42.Rd3 c4 43.Rd4 Rb1 44.Ke2 Rb2 45.Kf3 Bd2 46.Rc4 Be1 47.Nf4 Rf2 48.Ke3 Rc2 49.Nd5 Kf7 50.Re4 Ne5 51.Be5 fe5 52.Kd3 Rd2 53.Kc4 (53.Kc4 Bf2 54.Re5+–) 1–0. Volke,Karsten (2480) – Meister,Peter (2415), Bundesliga, 1994.

11.Ne5= Be5 12.Be5 Re5 13.d4 Rg5 14.Kh1 Rg6 15.Nd2 Rh6 16.g3 Qd7 17.Rg1?? Rh2!? (17...Rh2 18.Kh2 Qh3#) 0–1. Cook,M – Nicholson,John G, Islington, 1970.

9.Be2 Be6

10.0–0 a5 11.a3 Bd6 12.d4 (12.Nc3 g6=) 12...Nb6 (12...Qf6 13.Nc3=) 13.Nbd2 (13.e4 f5 14.e5 Be7=) 13...f5 (13...Bf5!?=) 14.Qc2+= Be7 (14...a4 15.Nc4+/–) 15.Bd3 (15.Ne5 Ne5 16.de5 Qd7+=) 15...Rf8 (15...g6 16.Ne5+=) 16.Rfe1 Qd7 17.e4 fe4 18.Ne4 Bf5 19.d5 (19.Rad1 Rad8+=) 19...Qd5 (19...Nd5 20.Rad1 Na7 21.Bc4+–) 20.Rad1+= Qa2? (better is 20...Rad8+=) 21.Neg5+– Bd3? (21...h6 22.Bf5 Rf5 23.Qf5 hg5 24.Bg7 Qf7 (24...Kg7 25.Ng5 Qc2 26.Ne6 Kh8 27.Rd3 Qf2 28.Kf2 Bc5 29.Nc5 Ne5 30.Qe5 Kh7 31.Qh5 Kg7 32.Rg3 Kf8 33.Qf5) 25.Qf7 Kf7+–) 22.Qd3 (22.Rd3?! Rf5 23.Rd7 Nd7 24.Qf5 Nf8= (24...Qb2?? 25.Qh7 Kf8 26.Qh8)) 22...g6 23.Re7! Qb2 (23...Ne7 24.Qe4 Double attack (24.Qe4 Decoy)) 24.Rh7 Rf6 (24...Rf5 25.Rh6 Rf6 26.Qe4+–) 25.Re1 (25.Rc7?! Rd8 26.Qf1 Nd5+–) 25...Rc8 (25...Qa2+–) 26.Qe4 (26.Qe4 Ne5 27.Qe5 (27.Ne5?? Qf2 28.Kh1 Qf1 29.Rf1 Rf1) 27...Qe5 28.Ne5+–) 1–0. almanzor1 (2370) – chpot (1920), gameknot.com, 2014.

10.0–0 Rg6 11.Bd3 Rh6 12.Be4 f5 13.Bc2 Bd6 14.g3 Be6 15.Nc3 Qe7 16.Bb3 Nb6 17.Nb5 a6 18.Nbd4= Nd4 19.Nd4 Nd5 20.d3 Rf8 21.e4+– fe4 22.de4 c6? 23.Bc1?? Nc3 24.Qc2 Nb5 25.Nb5 (25.Nb5 ab5 26.Bh6 gh6 27.Be6 Qe6 28.Qb3+–; 25.Be6?! Re6 26.Ne6 Qe6+/–; 25.Ne6?! Re6 26.Bg5 Qf7+/–) 1–0. Bonetti,Shane (2110) – Schulz,Hans_Juergen (1955), TT–15 ETC, 2005.

10.0–0 h6 11.Nc3 Nc3 12.Bc3 Bc3 13.dc3 Qf6 14.Nd4 Rad8 15.Qa4 Bd5 0–1. terrier (2095) – drengur1 (1985), gameknot.com, 2015.

10.0–0= Rh6 11.Na3 Bg4 12.Nc4?? Nb6?? 13.Nce5= Ne5 14.Be5 Bd6 15.Bd6 Qd6 16.h3 Bd7 17.d4 Re8 18.Ne5 Bc8 19.a4 c5 20.a5 Nd5 21.Nc4 Qc7 ½–½. Nordbrink,Juergen – Kolbus,S, 1980.

10.Na3 Rg6=+ 11.Rg1 Bg4 12.Nc2 Ba5 13.h3 Bf3 14.Bf3=+ Ndb4 15.Nb4 Nb4 16.Kf1 Nd3 17.Rb1 Rb6 18.Qc2 Nb2 19.Rb2=+ Rb2 20.Qb2 Qd3 21.Be2 Qd2 22.Qd2 Bd2 23.Bf3 Rd8 24.Ke2 Bb4 25.Rb1 Rd2 26.Kf1 a5 ½–½. Schulz,H – Baer,Werner, ETC, 2004.

10.Qc2 Qd7 11.0–0 Bf5 12.d3 Rad8 13.a3 Ba5 14.Rd1 Re3 15.fe3 Ne3 16.Qb3 Nd1 17.Qd1 Qd5 18.Kf1 Qb5 19.Qc2 Bd3 20.Nc3 Bc3 21.Bc3 Be2 22.Qe2 Qe2 23.Ke2 Ne7 24.Bd2 b6 25.a4 f6 26.a5 Rd7 27.ab6 cb6 28.g4 Kf7 29.Rb1 g6 30.g5 Ke6 31.Rc1 f5 32.Be3 Nd5 33.Rc6 Ke7 34.Bc1 b5 35.Be3 Ne3 36.Ke3 Rb7 37.Nd4 a5 38.Ra6 a4 39.Kd3 Rd7 40.Ra5 Rd5 41.Rb5 Kd6 42.Rb6 Ke5 43.Re6 Kf4 44.Ra6 Kg5 45.Ra4 Kg4 46.Kc4 Rd7 47.Ra3 f4 48.h3 Kh4 49.Nf3 Kh5 ½–½. Hoefer,Hans_Peter – Ventimiglia,Chuck, IECC, 2000.

10.0–0 a6

11.a3 Bd6 12.Qc2 =+.

11.a3 Bd6 12.Nc3 Qf6 13.Rb1 Qg6 14.Nd5 Bd5 15.d3 Rad8 16.Qc2 f5 17.g3 Rd7 18.Rfe1 Rf8 19.Qc3 f4 20.ef4 Bf4 21.Nh4 Qf7 22.Qc5?? Bd6–+ 23.Qe3 Re7 (24.Bh5 Qh5–+) 0–1. hertford (1805) – Centurion (2820), ChessWorld.net, 2002.

11.a3 Be7 12.Qc2 Bd6 =+.

11.a3 Be7 12.Qc2 Bf6 13.d4 14.Nc3 Nc3 15.Bc3 Ne7 16.Rab1 b5 17.Rfe1 Nd5 18.Bb2 Rc8 19.Rbc1 c6 20.Nd2 Be2=+ 21.Re2 c5 22.Ne4 c4 The passed pawn on d4 will quickly become a dangerous weapon 23.Nf6 Qf6 24.e4 Nf4 25.Re3 a5 26.d5=+ Qb6 27.Rf3 Qh6 28.Rg3 f6 29.d6=+ Rcd8 30.Rd1 Re6 31.d7 Re7 32.a4 Qh5 33.Re1 Red7–+ 34.Bf6 Ne2!? (34...Ne2 35.Qe2 Qe2–+) 0–1. Tidemalm,Gustav – Seger,Yngve, corr SSKK Sweden, 1986.

11.a3 Be7 12.Ne5 Ne5 13.Be5 Bf6 14.Bf6 Qf6 (< 14...gf6 15.d4+=) 15.d4 Rad8 (15...c5 16.Bf3–/+) 16.Bf3 (16.Qc1 Rd6=+) 16...c5 17.Nd2 (17.Qd3 b5 18.Rd1 Bf5–/+) 17...Nc3 18.Qe1 (better is 18.Ne4 Ne4 19.Be4 cd4 20.Qb1–/+) 18...Bc4?? (better is 18...cd4 19.Bb7 Bg4–/+) 19.Nc4+– cd4 20.e4 (20.Bb7!? Qf5 21.a4 Qc5+–) 20...Qf4 (20...b5 21.Nd2 Qe5+/–) 21.e5 (better is 21.Qd2!? Qh4 22.e5+–) 21...b5+= 22.Nd6?? (better is 22.Qd2 Qd2 23.Nd2 Re5 24.Rfe1+=) 22...Re5–+ (23.Ne4 Ne4–+) 0–1. Pal – Woronowicz, corr 3GMM–04, 1997.

11.Qc2 Qd6 12.Ng5 g6 13.Bc4 Nce7 14.Qe4 Nf5 15.Qf3 b5= 16.Bb3 c5 17.Ne6 fe6 18.e4 c4 19.Bc2 Rf8 20.ef5+– gf5 21.Re1 h6 22.Be5 Qd7 23.Nc3 Rae8 24.Qh5 Rf7 25.Qh6 Rg7 26.Bg7 (26.Bg7 Qg7 27.Qg7 Kg7 28.Nd5 Bd2 29.Re2+–) 1–0. Maciejewski,R – Krulisch,C, corr Poland, 1993.

11.Qc2 Bd6 12.Bd3 h6 13.a3=+ Qd7 14.Nc3 Nb6 15.Bh7 Kh8 16.Be4 Nc4 17.Rfb1 Rad8 18.d3 Nb2 19.Rb2 b6 20.Ne2 Na5 21.Nfd4 Be5 22.Re1 f5 23.Bf3 c5 24.Ne6 Re6 25.d4 cd4 26.ed4 Bd4 27.Rbb1 Rc8 28.Qa2 Bc5 29.Red1 Rd6 30.Rd6 Qd6 31.Ng3 b5 32.Qd5? Qd5–+ 33.Bd5 g6 34.a4 ba4 35.Kf1 Rd8 36.Be6 Rd2 37.Ne2 Nc6 38.Bc4 a3 39.Ba6 a2 (39...a2 40.Ra1 Rb2–+) 0–1. Plock,Joerg – Baer,Werner, corr TKM/A001, 1999.

11.Qc2 Be7 12.Nc3 Qd7 (12...Ncb4 13.Qb1=) 13.Rfd1 (13.Nd5 Bd5 14.Bd3 h6=) 13...Bf6 (13...Ncb4!? 14.Qc1 Bd6=) 14.Nd5+= Bb2 15.Nc7 Ba1 16.Na8 Bf6 17.Nb6 Qe7 (17...Qd8 18.Rb1+=) 18.Bc4+/– Qc5 (18...Ne5 19.Ne5 Be5 20.Qb3+/–) 19.Rb1 Bc4 20.Qc4 (worse is 20.Nc4 b5 21.Na3 Qd6=) 20...Qc4 21.Nc4 b5 22.Nd6 Rd8 (22...Re6 23.Nb7+/–) 23.Ne4 (23.Nb7 Rc8 24.Rc1 Be7+–) 23...Be7+/– 24.d4 Nb4 25.a4 ba4 26.Ra1 Rc8 (26...f5 27.Ng3 g6 28.e4+/–) 27.g4 f6 28.Ra4 Kf7 29.Nfd2 h5 (29...Rc6 30.Kf1+/–) 30.h3 (30.gh5 Rc6+–) 30...h4 (30...hg4 31.hg4 Rc6 32.Nb3+/–) 31.Nb3 Rc2 (31...Rc6!?+/–) 32.Nbc5 Rb2 33.Ra1 (33.Na6 Nd3+–) 33...Nc2 (33...g6 34.Na6 Nc2 35.Rd1+–) 34.Rc1 (better is 34.Ra6!? Rb1 35.Kh2+–) 34...Nb4 35.Ra1 Nc2 36.Rd1 (36.Ra6!? Rb1 37.Kh2 Bc5 38.dc5 Ne1+–) 36...a5 37.d5 Na3 (37...Bc5 38.Nc5 Na3 39.e4+/–) 38.d6 Bd8 39.d7 Nc4 40.Rd4 Ne5 41.Kg2 g6 (41...Ke7 42.Nd6+–) 42.Nd6 Ke7 43.Ndb7 Nc6 44.Re4 Ne5 45.g5! Rd2 (45...fg5 46.Re5 Deflection) 46.gf6 (46.Rh4 Nd7 47.Rh7 Kf8 48.Rd7 Rd7 49.Nd7 Ke7+–) 46...Kf6 47.Nd8 (47.Nd8 Nd7 48.Rf4 Ke7 49.Nc6 Ke8 50.Ne4+–) 1–0. Emperado,Emmanuel (2230) – Garma,Chito (2330), Philippine International Open, 2016.

11.d4 Qe7 12.a3 Ba5 13.Nfd2 (13.Qb3 Qd7=+) 13...Qh4 (13...Rad8 14.Nc4=) 14.Nc4= Rad8 15.Na5 Na5 16.Nd2 Bf5 (16...Qe7 17.Qc2=) 17.Re1 (17.Qa4 Nc6=) 17...Re6 18.g3 (18.Rc1 Rb6 19.Bc3 Nc3 20.Rc3 Rc6 21.Rc6 Nc6+=) 18...Qe7 (18...Qf6 19.Bf3 Rb6 20.Ra2=) 19.Rc1 b5 (19...Rb6 20.Bc3 Nc6 21.Bf3=) 20.Bf1 (20.Bf3 Nb6=) 20...Nf6 (20...Nb7 21.Qf3 Qg5 22.h4+/–) 21.Rc5 Bg6 (21...Be4 22.Bh3 Nb7 23.Rc1+=) 22.Qc1+= Nd5 23.Bh3 (23.Bg2 c6+=) 23...f5 (23...Nb7 24.Rc6 Red6 25.e4+=) 24.Bg2+= c6 25.Ba1 (25.a4 Nb6 26.Ba3 Qd7+=) 25...Qe8 (25...Qd6 26.Rc2=) 26.Qb1 (26.Rc2 Qe7+=) 26...Nb7 27.Rcc1 Qe7 (27...Nd6 28.Qc2 Ne4 29.Bb2=) 28.Qa2 Bf7 (28...a5 29.Qb2=) 29.Qb2 (29.Nf3 Qf6+=) 29...Na5 (29...Re8 30.Nf3+=) 30.Qc2 Qa3 31.Qf5 Qe7 32.Qb1 Nb6 33.Qa2 Na4 34.e4 Qb4 (34...Nb7 35.Qb1+=) 35.Rb1 (35.Qc2 Qe7+=) 35...Qf8 36.Qc2 Ree8 37.Bf1 ½–½. Mehlhorn,U – Betker,J, M–357–D, 2001.

11.d4 f5 12.Nbd2 Nf6 13.Nc4 b5 14.Nce5= Ne7 15.Ng5 Qc8 16.a3 Bd6= 17.Ne6 Qe6 18.Bf3 Rad8 19.Qc2 c5 20.Rfd1 c4 (20...c4 21.a4 Be5 22.de5 Nfd5=). Bedbur,Heinz – Grehl,Siegfried, corr SOK–92–78, 1992.

11.d4 Qf6 12.Ba3=+.

11.Nd4 Nd4 12.Bd4 Bd6 13.Bf3 c6 14.Bd5 Bd5 15.d3 Qh4 16.g3 Qh3 17.e4 Be6 18.Nd2 h5 (18...c5 19.Be3–/+) 19.Qf3 (19.Qc1 Rad8 20.Qc3 Qg4+=) 19...h4 20.Qg2 hg3 21.fg3 Qh6 22.Qf2 Rf8 (22...c5 23.Be3 Qh5 24.Rac1+=) 23.Be3 Qg6 24.Bf4 Be7 25.Nf3 Rfd8 26.Rad1 (26.Rab1 Bh3 27.Rfe1 A) worse is 27...Rd3 28.Ne5 (28.Rb7?! Bc5 29.Qc5 Rf3=) 28...Qd6 29.Nd3 Qd3 30.Rb7+/–; B) 27...b5=) 26...f6 (26...Qh5 27.Bc7 Rd7 28.Bb6+=) 27.Be3= Bb4 28.Qb2 a5 29.a3 Bd6 30.Qb7 Ba3 (30...Bg3 31.Qc6 (31.hg3? Qg3 32.Kh1 Bg4–+) 31...Bh3 32.Qc4 Kh8 33.Kh1–/+) 31.Qc6 Bb3 32.Bb6 (better is 32.Ra1 Rac8 33.Qb6+/–) 32...Rdc8+= 33.Qb5 The isolani on a5 becomes a target 33...Bd1 34.Rd1 Qg4 35.Rf1 Rc1 (better is 35...a4+=) 36.Rc1 Bc1 37.Qd5 Kh7 38.e5?? (38.Qa8!? Qf3 39.Qa5 Qd3 40.Qf5 Kh6 41.Qh3 Kg6 42.Qg4 Kh6 43.Kf2+/–) 38...Rc8 (better is 38...Ra6 39.Bf2 a4–/+) 39.ef6+= gf6 40.Qf7 Qg7 41.Qg7 Kg7 42.Ba5 Be3 43.Kf1= Ra8 44.Ke2+= Bh6 45.Bc3 Re8 46.Kf2 Rc8 47.Bd4 Ra8 48.Nh4 Ra2 49.Kg1 Kf7 50.Nf5 Bc1 51.Nd6 Ke6 52.Ne4 Attacking the isolated pawn on f6 52...f5–/+ 53.Nc5 Kd5 54.Nb3 Bb2 55.Bb2 Rb2–+ 56.Na5 Kd4 57.Nc4–/+ Rb1 58.Kg2 Kd3 59.Nd6= Rb2 60.Kh3 Rf2 61.Nf7 f4 62.gf4= Rf4 63.Ne5 Ke4 64.Ng6 Rf6 65.Ne7?? Kf3 66.Kh4–/+ Rh6 67.Kg5 Rh2 68.Nf5 ½–½. Hal1958 – XANDERKIRV, playchess.de, 2003.

10.0–0 Nb6

11.Qc2 Bf8 12.a3 Qd7 13.d4 Bf5 14.Bd3 Bd3 15.Qd3 Ne5 16.Ne5 Re5 17.Qe2 Ree8 18.Nc3 Nd5 19.Nd5 Qd5 20.Rac1 c6 21.Qc4 Qh5 22.Rfe1 Rad8 23.e4 Bd6 24.e5 Bf8 25.Rc3 Qf5 26.Rce3 Rd5 27.Qb3 Rd7 28.e6 (28.Rf3!? Qe6 29.Qd3+=) 28...Rde7 29.Rf3? (better is 29.g3=) 29...Re6–/+ 30.Re6?? (30.Rf1 Qb5 31.g3 Qb3 32.Rb3 b6–+) 30...Qe6 (30...Qb1 31.Bc1 Qc1 32.Qd1 Qd1 33.Re1 Qe1#) 31.Qe6 Re6 32.Kf1 Rd6 33.Re3 f5 34.Re8 Kf7 35.Ra8 a6 36.Ke2 g6 37.a4 Rd7 38.Bc3 Bg7 39.Ke3? c5! (39...c5 40.Kd3 Bd4–+) 0–1. Kalhorn,Marcin – Sujkowski,Pawel, Otwarte Mistrzostwa UKSz Hetman_A Poland, 2011.

11.d3 a5 12.Nbd2 a4 13.a3 Be7 14.Qc2 Na5 15.Nd4 Bd7 16.Nc4 c5 17.Na5 Ra5 18.Nf3 Bf6 19.Rab1 Bb2 20.Qb2 Rb5 21.Qc2 Qc7 22.Rb5 Bb5 23.Rc1 Rc8 24.Nd2 Nd7 25.Nc4 (25.Bg4!?+=) 25...Bc6= 26.Nb2 Qa5 (26...b5 27.Bg4=) 27.Nc4 Qc7 28.Nb2 ½–½. Beloshapkin,Konstantin (2040) – Sinitsin,Roman (2200), Novosibirsk RUS, Sukharev Mem, 2012.

10.0–0 Qd6

11.a3 Ba5 12.Qc2 Rad8 13.d4 Bg4 14.Nbd2 f5 15.Nc4 Qd7 16.Na5 Na5 17.Ne5 Qc8 18.Bd3+– g6 19.f3 Ne3 20.Qc3 Nf1 21.Ng4 fg4 22.d5! Re7 23.Qh8 Kf7 24.Qg7 Ke8–/+ 25.Bg6 (25.Bg6 hg6 26.Qg6 Kd7 27.Qg4 Kd6 28.Qb4 Kd7 29.Qg4 Ke8 30.Qg8 Kd7 31.Qg4=). Franke,Claus Peter – Woschkat,Karl_Heinz, corr SOK–88–12, 1987.

11.Ng5 Bf5 12.Bg4 (12.a3 Ba5=) 12...Bg4 13.Qg4 Qg6 14.Qg3 Bd6 15.f4 Qc2 16.Bg7 Kg7 17.Ne6 Kh8 1–0. Hal1958 – Petery, playchess.de, 2002.

10.0–0 Bd6

11.Nc3 a6 12.a3 Nf6 13.d4 Nd5 14.Ne4 Be7 15.Rc1 Nf6 16.Nc5 Bc8 17.Na6+/– ba6 Opening the b–file gets White a lot of play 18.Rc6 Bb7 19.Rc1 Bd6 20.Nd2 c6 21.Bf3 Rc8 22.Nc4 Bb8 23.Qb3 Re7 24.Bc3 Bc7 25.Qa4 Nd5 26.Ba5 Nb6 27.Bb6 Bb6 28.Rb1 Bc7 29.Rb7 Bh2 30.Kh2 Rb7 31.Qa6 Qc7 32.Kg1 Ra7 33.Qb6 Qb6 34.Nb6 Rb8 35.Nc4 Rc7 36.Rc1 Kf8 37.Na5 c5 38.Rc5 Rc5 39.dc5 Rb5 40.Nb7 Rb1 41.Kh2 Ra1 42.c6 Rc1 43.a4 Ke7 44.a5 g6 45.Kg3 Rc4 46.Bd5 Rc3 47.Kf4 f6 48.a6 Ra3 49.c7 Kd7 50.Nd6 Ra4 51.Kf3 Kc7 52.Nb5 Kb6 53.a7 Kb5 54.a8Q Ra8 55.Ba8 Kc5 56.Ke4 Kd6 57.Bd5 Ke7 58.Bg8 h5 59.Kd5 (59.Kd5 g5 60.Ke4+–) 1–0. Wittstock,Gunther – Beckmann,KH, corr DDR–ch H174, 1974.

11.Nc3 Nc3 12.Bc3 Qe7 13.Qc2= Bd5 14.d3 Ne5 15.Nd4 g6 16.e4 Bc6 17.f4 Nd7 18.Nc6 bc6 19.Bb2 Bc5 20.Kh1 (20.Kh1 Rab8 21.Qc3+/–) 1–0. Sternik,Ryszard – Jackowski,Ryszard, corr Poland, 1994.

11.Nc3 Nce7 12.Ne4 c6 13.Nfg5 Bf5 14.d3 Bc7 15.Nf7? Kf7–+ 16.Ng5 Kg8 17.e4 Nc8 18.Nf3 Nf4 19.ef5 (19.ef5 Ne2 20.Kh1–+; 19.Re1 Ne2 20.Qe2 Ba5–+). Sternik,Ryszard – Bothe,E, corr SOK–90–57, 1990.

11.Nc3 Qf6 12.Rb1 Qh6 13.Ne4= Bf5 14.Nd6 Qd6 15.Ra1 Qh6 16.Qb3 Nb6 17.a4 Be6 18.Qc2 Nd5 19.Bb5 Ncb4 20.Qc5 c6 21.Be2 b6 22.Qd6 Rad8 23.Qg3= Nf6 24.Nd4 Ne4–/+ 25.Qc7 Rd7 26.Qe5 Nd2 27.Ne6 f6 28.Qf5+/– Rd5 29.Qg4+– White fights for the Initiative 29...Nf1 30.Bf1 Nc2 31.Nc7 f5 32.Qc4 Ne3 33.fe3 Qe3 34.Kh1 Re4 35.Nd5 (35.Nd5 Rc4 36.Ne3+– (36.Bc4?! cd5 37.Bd5 Kf8=)) 1–0. Mielke,Sven – Buenz,Heinrich, Neubrandenburg op–B, 1999.

10.0–0 Qd7

11.a3 Bd6 12.Nc3 Nc3 13.Bc3 Bd5 14.Qc2 (14.Qb1 Rab8=+) 14...Qe6= 15.Ng5 Qh6 16.f4 Ne7 17.Bd3 Ng6 18.Be4 Be4 19.Ne4 Ne7 20.Rf3 Qe6 21.f5! Qc4 22.f6 Nd5+= 23.Nd6 cd6 24.Qf5 gf6 25.Bd4+– Re6 26.d3 Qb3 27.Rh3 Kf8 28.Rf1 Ke8 29.Rh7 Ne7 30.Qh3 Kd7 31.Rf7 Qd3 32.R7f6 Qb3 33.Rc1 Rc8 34.Rc8 Nc8 35.Qg4 Qb1 36.Kf2 Qe4 37.Rf7 Kc6 38.Qe4 Re4 39.Kf3 Rh4 40.Kg3 Re4 41.h4 d5 42.h5 Nd6 43.Rf6 b6 44.h6 1–0. Mehlhorn,U – Kisshauer,U, BFH–071, 2000.

11.a3 Bd6 12.Ng5 Rad8=+.

11.Na3 a6 12.Nc2 Rad8 13.Nfd4 Nd4 14.Nd4 c5 15.Ne6 Qe6 16.Qc2 Ne3!–/+ 17.de3 Rd2 18.Qc4 Rb2 19.a3 Qc4 20.Bc4 Bd2 21.a4 Re4 22.Bd5 Reb4 23.Rfd1 c4 24.Kf1 c3 25.Ke2 a5 26.Kd3 b5 27.ab5 Rb5 28.e4 Rc5 29.Bc4 g5 30.Rf1 Bf4 31.g3 Be5 32.f4?? Rd2 (32...Rd2 33.Ke3 gf4 34.gf4 Bd4 35.Kf3 Rc4–+) 0–1. St_Jean,Benoit – Melia,Ken, internet, 2001.

11.Bb5 Bg4 12.h3 Bh5 13.g4 Bg6 14.Ne5 Qe6 15.Bc6 bc6 16.Ng6 Qg6 17.Qf3 Bd6 18.a3 Reb8 19.Bd4 Qd3 20.Nc3 Nc3 21.Bc3 (21.dc3? c5 22.Rfd1 Qg6–+) 21...c5 22.a4 Re8 23.Rab1 Rab8 24.Qf5 c4 25.Rb8 Rb8 26.Qg5 Bf8 27.Qf4 Rb7 28.Rc1 Qd5 29.Qf5 c6 30.Qc8 c5 31.a5 Qe4 32.Qf5 (32.Qa8 Qe7+=) 32...Qd3= 33.Kg2 h6 34.Ra1 a6 35.Qf3 Re7 36.Ra2 Re6 37.Rb2 Bd6 38.Rb6 g6? (38...Bc7 39.Qa8 Qd8 40.Ra6 Ra6 41.Qa6 Qd5 42.Kg1 Bd8+–) 39.Qa8 Bf8 40.Re6 fe6 41.Qe8 (41.Qa6?! Qd5 42.f3 Kf7+–) 41...Qd5 42.f3 (42.f3 e5 43.Qg6 Bg7 44.Qa6+–) 1–0. pcmvr – Dmt, playchess.de, 2005.

11.d3 Bg4 12.a3 Bd6 13.Nbd2 Qe6 14.Ne4 Be7 15.Nd4 Be2 16.Qe2 Nd4 17.Bd4 Rac8 18.Qb2 f6 19.Rac1 b6 20.Qb3 f5 21.Nd2 c5 22.Bb2 Bf6 23.Bf6+= Nf6 24.Qe6 Re6 25.d4 Rec6 26.Nf3 c4 27.Ne5 R6c7 28.f3 b5 29.Kf2 Nd7 30.Nd7 Rd7 31.Rfd1 a5 32.e4 b4 33.Ke3 Kf7 34.d5 c3 35.ab4 ab4 36.Kd3 Kf6 37.Kd4 Ra7 38.Rc2 Ra4 39.Kd3 Ke5 40.Rb1 g5 41.g3 Rf8 42.Rb3 g4–+ 43.f4 Kd6 44.Re2 Re8 45.ef5? Re2 46.Ke2 Ra2 47.Kd1 Kc5 48.f6 Kc4 49.Rb4 Kd3 50.Ke1 Re2 51.Kf1 Rb2 52.d6?? c2 53.Rb2 c1Q 54.Kf2 Qb2 55.Kg1 Ke2 56.Kg2 Qb7 57.Kg1 Qb1 58.Kg2 Qf1# 0–1. Pierred (2225) – Javier88 (2480), Rated game, 5m + 0s, 2005.

11.d4 Rad8 12.Nbd2 Bg4 13.Nc4 Nb6 14.Nb6 ab6 15.a3 Bd6 16.Re1 Ne7 17.h3 Bf5 18.Bd3 Bd3 19.Qd3 Ng6 20.Qc2 Ra8 21.Rec1 Qe7 22.Rab1 Nh4 23.Nh4 Qh4 24.Re1 Re4 25.a4 Rae8 26.Bc3 R4e6 27.Bb4 c5 28.Bc3 cd4 ½–½. Fritz,Harry – Krasny,Henryk Jan, corr 3GMM½–07, 1998.

11.d4 Nf6 12.Nbd2 Bd5 13.a3 Bd2 14.Qd2 a6 15.Rac1 Rac8 16.Ne1 Qe6 17.Nd3 Ne4 18.Qe1 f6?? 19.Nf4+– Qf7 20.Nd5 Qd5 21.Bc4 (21.Bc4 Qc4 22.Rc4+–) 1–0. Agrest,Roman (2160) – Savegren,Kurt, SWE–ch Seniors, 2007.

10.0–0 Qe7

11.a3 Bd6 12.Bb5 Rab8 =+.

11.a3 Bd6–/+ 12.Qc2 Rad8 13.Nc3 Nc3 14.Bc3 Bd5 15.Qb2 Ne5 16.Be5 Be5 17.Ne5 Qe5 18.Qe5 Re5 19.d4 Re7 20.Bd3 c6 21.Rfc1 g6 22.Rab1 f5 23.Bc4 Kf7 24.h4 Ke6 25.Kf1 f4 26.e4 Bc4 27.Rc4 Kf7 28.f3 Rd6 29.a4 a5 30.Ke2 h6 31.Kd3 Red7 32.Kc3 Ke7= 33.Rd1 Rd8 34.Rc5 b6 35.Re5 Kf7 36.h5+= g5 37.Rb1 Rd4= 38.Rb6 Rd3 39.Kc4 Rd1 40.Rb3 R8d2 41.Rb7 Kf6 42.Ra5 Rc1 43.Kb3 Rd3 44.Kb4 Rd4 45.Ka3 Rd3 46.Kb4 (better is 46.Rb3!? Rd2 47.Rb2 Rc3 48.Kb4 Rb2 49.Kc3 Rg2 50.Rc5+/–) ½–½. Muri,Heinrich (2340) – Bennborn,Jan (2305), corr EM/MN/044 ICCF Email, 2002.

11.a3 Bd6 12.d4 a6 13.Nbd2 Bg4 14.Nc4 Nf4 15.Re1 Ne2=+ 16.Qe2 Rad8 17.h3 Bh5 18.Rad1 Qe4=+ 19.Rc1 Bf3 20.Nd6= Rd6 21.Qf3 Qf3 22.gf3 h6 23.Kh2 Rd7 24.Rg1 Nd8 25.d5 f5 26.Rg6+= Ree7 27.Rcg1 Kh7 28.e4 Rf7 29.ef5 (29…a5 30.Be5+/–) 1–0. Hombergs – Kern, Hessen clubgame, 1996.

11.Bb5 Bd7 +=.

11.d4 Rad8 12.Nbd2 Nf6 13.Ng5 Bf5 14.Rc1 h6 15.Ngf3 Ne4 16.Ne4 Be4 17.Bd3 Bd6 18.Be4 Qe4 19.Qb3 b6 20.Nd2 Na5 21.Ne4 Nb3 22.Nd6 Nc1 23.Ne8 Ne2 24.Kh1 Re8 25.g3 c5 26.d5 Rd8 27.Re1 Ng3 28.hg3 Rd5 29.Re2 f5 30.Bc3 Rd3 31.Be5 Kf7 32.Rb2 g6 33.Bb8 Rd7 34.Kg2 Ke6 35.Kf3 g5 36.g4 Rf7 37.gf5 Rf5 38.Kg4 Rf7 39.Kh5 c4 40.Bg3 Kd5 41.Kh6 c3 42.Rc2 Rf6 43.Kg5 Rc6 44.Kf5 Kc4 45.Be5 Kd3 46.Rc3 Rc3 1–0. onny555 (1860) – toffie62 (1795), gameknot.com, 2014.

11.Nd4 Nd4–/+ 12.Bd4 Bd6 13.Bf3 c5 14.Bb2 Rad8 15.Nc3 Nc3 16.Bc3 b5 17.Bc6? (better is 17.Qc2!? b4 18.Bb2+=) 17...Bh2!–+ 18.Kh2 Qd6 19.Kg1 Qc6 20.a3 Rd3 21.Qc1 Bc4 22.Re1 Qg6 23.Qd1 f5 24.Qf3 Bd5 25.Qg3 (25.Qh3 f4!–+) 25...Qg3 26.fg3 h5 27.Rf1 Be4 28.Kf2 a6 29.Ke2 Red8 30.Rac1 R8d7 31.Rf2 a5! 32.Ba5 Ra3 33.Bb6 c4 34.Bc5 Ra2 35.Bb4 Bd3 36.Ke1 Ra4 37.Bc3 b4 38.Bd4 Rd4! 39.ed4 b3 40.Rf3 (40.Rf1 Bf1 41.Kf2–+) 40...b2 41.Rd1 Ra1 0–1. Hal1958 – Yelva, playchess.de, 2005.

9.Be2 Qe7

10.0–0 Bd6 11.d4 Bg4 12.Nbd2 Ne3 13.fe3 Qe3 14.Rf2 Bh2 15.Nh2 Be2 16.Qb3? Qd2–+ 17.Qf7 Kh8 18.Raf1 Qe3?? 19.Re1=+ Nd4 20.Ng4 Qg3?? 21.Ree2 Ne2 22.Re2! Rg8 23.Nh6 Qg6 24.Qg6 hg6 25.Ng8 Kg8 26.Re7 Rd8 27.Rc7 Rd1 28.Kh2 b5 29.Rg7 Kf8 30.Ra7 Rd2 31.Ba3 Ke8 32.Bb4 Rd5 33.a3 Rh5 34.Kg3 Rg5 35.Kf3 Rf5 36.Kg4 Rf2 37.g3 1–0. Labahn,Wolfgang – Sass,A, Hamburg (4), 1993.

10.0–0 Bd7 11.a3 Bd6 12.Bc4 Nb6 13.Ba2 Rad8 14.d4 Be6 15.Nc3 Ba2 16.Ra2 Nc4 17.Qc1 Nb2 18.Qb2 Na5 19.Nb5 a6 20.Nd6 Qd6 21.Rc1 b6 22.Qc3 Rc8 23.Rac2 c5 24.dc5 Rc5 25.Qb2 Rc2 26.Qc2 Qa3 27.Nd4 g6 28.h3 b5 29.Qd1 Nc4 30.Ra1 Qd6 31.Qf3 Rb8 32.Rd1 Rd8 33.Qg3?? Ne5 34.Ra1 Qf6 35.f4? Nc4–+ 36.Re1 Ne3 37.Re3 Qd4 38.Kh2 Rd5 39.Qf3 Kg7 40.Ra3 Rd6 41.Re3 Qf6 42.Kg3 b4 43.h4 h5 44.Kh3 Rc6 45.Qg3 Rc3 (46.Kh2 a5–+) 0–1. Luneau,Gilles (1740) – Richter,Kurt (2135), Wch Seniors Bad Wildbad, 1997.

10.0–0 Nf6 11.Nc3 Bg4 12.h3 Bh5 13.Nb5 Ne4 14.Nbd4 Nd4 15.Nd4 Be2 16.Qe2= Qd7 17.d3 Nf6 18.Qf3+= Bf8 19.e4 Rad8 20.Rfd1 c5 21.Nf5 Re6 22.g4 Ne8 23.d4 Qb5 24.d5+= Rb6 25.Bc3+/– g6 26.Ne3 Bg7 27.Bg7 Ng7 28.g5 Qe8 29.h4 Nh5 30.Rac1 Qe7 31.Nc4 Rb4 32.Re1 Rc4 33.Rc4+/– Rd5 34.Qc3 (34.Qc3 Re5 35.a4+=). Ivanets,Vladimir (2260) – Skara,Milenko (2090), VII Camp. europeo senior, 2007.

10.0–0 Bg4 (--> 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 Bg4 10.0–0 Qe7).

10.Nc3 Nc3 11.dc3 Bf5?? 12.cb4+– Nb4 13.0–0 Rad8 14.Qb3 Bd3 15.Qc3 Be2?? 16.Qg7# 1–0. Kaschner – Landgraf, corr SOK–90–58, 1990.

10.Nc3 Be6 11.Qc2 Rad8 12.0–0 Nc3 13.Bc3= Bd5 14.a3 Bc3 15.Qc3 a6 16.d3 Qd6 17.Rfc1 Rd7 18.Rab1 b5 19.Bd1 Ne7 20.a4 c6 21.e4 Ba2 22.Rb2 Be6 23.d4 Qf4 24.Qe3 Qe3 25.fe3 f6 26.Kf2 Kf7 27.a5 Rd6 28.Rc5 Bc4 29.Bc2 Rd7 30.h4 Red8 ½–½. Schollbach,Tillmann – Benassi,Aspasio, 10 years 2a LSV M/V, 1999.

10.0–0 a6

11.a3 Bd6 12.Re1 Bg4 13.Nc3 Nc3 14.Bc3 Ba3 15.Qa4 Bb4 16.Rab1 Bc3 17.Qg4=+ Bb4 18.Rec1 a5 19.Bb5 Qf6 20.d4= Red8 21.Bc6 bc6 22.Ne5 Rd6 23.Rc4 g6 24.h4 h5 25.Qh3 Rad8 26.Nd3+= Rd5 27.Rbc1 Bd6= 28.Rc6 a4 29.Ra6+= Bh2 30.Qh2 Qa6 31.Nb4 Qa5 32.Nd5 Qd5 33.Qc7 a3 34.Qc4 a2?? 35.Qd5+– Rd5 36.Ra1 Ra5+/– 37.Kf1 Kg7 38.Ke1 Kf6 39.Kd2 Kf5 40.Kc2 g5 41.hg5 Ke4 42.Kc3 h4 43.Kc4 (43.Kc4 Ra7 44.d5+–) 1–0. Zenner,Claus – Lobgesang,Kurt, corr DDR–ch M540, 1971.

11.Re1 Bf5 12.Qb3 Rad8 13.a3 Na5 14.Qd1 Bd6 15.d3 Bg6 16.Qa4 Nc6 17.Nbd2 Nb6 18.Qb3 Bf5 19.Rac1 Qd7 20.Nd4 Nd4 21.Bd4 Be6 22.Qb2 Na4 23.Qa1 f5 24.Nc4 Bf8 25.Ne5 Qe7 26.Bd1 Nb6 27.a4 Nc8 28.Bc5 Nd6 29.Qb2 Bd5 30.d4 Qe6 31.Ba3 c6 32.f3 b5 33.Bd6 Qd6 34.e4+= White fights for the Initiative 34...Bc4? 35.Nc4+– bc4 36.Rc4 Rb8 37.Qc3 Re6 38.Bb3 Qa3?? 39.Rb4 Qb4+/– 40.Qb4 Bb4 41.Be6 Kf8 42.Rc1 fe4 43.fe4 Bd2 44.Rc6+– Be3 45.Kf1 Bd4 46.Ra6 Rb2 47.Bh3 Ra2 48.a5 Bc3 49.Ra8+– Ke7 50.a6 Bd4+/– 51.Ke1 Kd6 52.Rd8 Kc5? 53.Be6 Ra6?? 54.Rd5+– Kc4 55.Rd6 Kb5 56.Bc4!! Kc4 57.Ra6 Kd3 58.Re6 Ke3 59.Re7 Kf4 60.Ke2 Bf6 61.Re8 Bd4 62.Kd3 Bf6 63.Kc4 Ke3 64.e5 Bg5 65.e6 Kf2 66.Rg8 g6 67.Rg7 Kg2 68.Rh7 Bf6 69.e7 Be7 70.Re7 Kh2 71.Rg7 (71.Rg7 Kg3 72.Rg6 Kf4 73.Kd4 Kf3 74.Rf6 Kg4 75.Ke5 Kg5 76.Rf5 Kg4 77.Kf6 Kh4 78.Rf4 Kh3 79.Kf5 Kg3 80.Kg5 Kh3 81.Rg4 Kh2 82.Kh4 Kh1 83.Kg3 Kg1 84.Rf4 Kh1 85.Rf1#) 1–0. Kapas,Robert (1950) – Konya,Balazs (1925), Budapest First Saturday FM–B, 2005.

10.0–0 Be6

11.a3 Bd6 12.d4 Rad8 13.Nbd2 Nf6 14.Qc2 a6 15.e4 Bf5 16.Bd3 Bg6 17.Rfe1 Bf4 18.Nb3 Bh5= 19.Nfd2 Ng4 20.g3 Bd2 21.Qd2 Bg6 22.Rac1 Nf6 23.Qc3 Nb8 24.Qc7+/– Qc7 25.Rc7 Be4 26.Be4 Re4 27.Re4 Ne4 28.Rb7 Nd6 29.Rb4 Kf8 30.d5 Nd7 31.Na5 Re8 32.Kf1 Rc8 33.Nc6+– f6 34.a4 Kf7 35.Ba3 Nc5 36.Rb6 Ndb7 37.Rb2 Re8 38.Nb8 Re4 39.Na6! 1–0. Mehlhorn,U – Eisengrein,W, BFH–071, 2000.

11.Bb5 Bg4 12.Bc6 bc6 13.h3 Bh5 14.g4 Bg6 15.Qa4 Rab8 16.Nd4? Qh4–+ 17.Ne2? Qh3 18.f3 Bd3 19.Nbc3 Nc3 20.Bc3 Be2 (20...Be2 21.Rf2 Bf3 22.Rf3 Qf3–+) 0–1. Engles,Michael – Zednik,Martin, Telechess, 2001.

11.Nd4 Nd4 12.Bd4 Bd6 13.Nc3 c5 14.Nd5 Bd5 15.Bc3 Rad8 16.Bf3 Bc4 17.d3? Bd3!–+ 18.Re1 Bc7 19.Qb3 b5 20.Bc6?? Qd6 (21.Be5 Qc6 (< 21...Re5 22.Bb5 c4 23.Bc4–+; < 21...Qe5 22.f4 Qe6 23.Be8 Qe8 24.Qc3–+) 22.Bc7 Qc7–+) 0–1. hal1958 – TigerLilly, HCL–E637 playchess.de, 2003.

10.0–0 Bf5

11.a3!? Ba5 12.Qb3 Nb6 13.Nc3 Rad8 14.d4 (14.Bb5!?) 14...Be6 15.Qc2 a6 (15...Bc3 16.Bc3 Nd5 17.Bb2) 16.Bd3 h6 17.Ne2 Bg4 18.Kh1 Nd5 (18...Bf3 19.gf3 idea Rg1) 19.Neg1 (idea e4) 19...Nf6 20.Ba6! ba6 21.Qc6 Rd6 22.Qc2 Ne4 (22...Bf3 23.Nf3) 23.Ne5! Bf5 24.Qe2! (idea Nc4) (24.Nc6?? Ng3!) 24...Rf6 (24...Nc3 25.Bc3 (25.Qd2! Qe5!) 25...Bc3 26.Rac1) 25.f3 Ng5 26.d5! (26.e4 Bc8) 1–0. Adam – Reimann, corr 8.World–cp 1991 (Adam).

11.a3 Bd6 12.Nc3 Nc3 13.Bc3 Rad8 14.d4 a6 15.a4 Nb4 16.a5 Nd5 17.Qb3 Qf6 18.Bb2 Qh6 19.Ba3 Ba3 20.Ra3 Bc8 21.Ne5 f6 22.Bc4 fe5 23.Bd5 Be6 24.Be6 Qe6 25.de5 Qb3 26.Rb3 Re5 27.Rb7 Rd7 28.Rc1 Rc5 29.Rcb1 Ra5 30.h3 Rc5 31.Ra1 Rc6 32.Ra7 Rdd6 33.Ra4 Kf7 34.g4 g5 35.Ra5 h6 36.Ra8 Rf6 37.Ra2 Ke7 38.Kg2 Rb6 39.Kg3 Kd7 40.h4 gh4 41.Kg2 Rb4 42.R8a6 Rg4 43.Kh3 Rgg6 44.Rd2 Rd6 45.Rdd6 Rd6 46.Ra4 Rf6 47.f4 Ke6 48.Kh4 c5 49.Ra6 Ke7 50.Ra7 Kd6 ½–½. Durka – Petrik, 1979.

11.d4 a6 12.a3 Ba5 13.Qb3 Nf4 14.Bc4 b5 15.ef4 bc4 16.Qc4 Be4 17.Nbd2 Qd6 18.Ne4 Re4 19.g3 Rb8 20.Rab1 h6 21.Rfc1 Ne7 22.Ne5 Nd5 23.Nc6 Rf4 24.Nb8 1–0. Buczinski – Jasak, corr PL 1993.

11.d4 Rad8 12.Bd3? Ne3 13.Qe2 Bd3 14.Qd3 Nf1 15.Nc3 Ne5 16.Ne5 Qe5 17.Rf1 Qd4 18.Qc2 0–1. Pietrzak – Twardon, corr PL 1982 (Pietrzak).

10.a3 Ba5

11.0–0 Bf5 12.Qb3 Nb6 13.d4 Be6 (13...Qe6 14.Qe6 Re6 15.Nc3=) 14.Qc2+= Rad8 15.Bd3 h6 16.Nbd2 Bd2 17.Nd2 (worse is 17.Qd2 Bc4=) 17...Nd5 18.Rac1 Bd7 19.Rfe1 Qh4 (19...Bg4!?+/–) 20.g3 Qh5 21.e4 Nf6 22.Bf1 Bg4 (22...Qg6 23.Bc3+–) 23.d5 Ne5 24.f4 (24.Qc7?! Rc8 25.Be5 Rc7 26.Bc7 Bd7+/–) 24...Nf3 25.Nf3 Bf3 26.Bf6 gf6 27.Qc7 f5 28.ef5 Qf5 (28...Rf8 29.d6 Qf5 30.Re5+–) 29.Re5 Qg6 30.Bb5 Rf8 31.Qb7 Qg4 (31...Rd5 32.Rd5 Qe4 33.Rcd1+–) 32.Bd3 (32.Bc4 Rb8 33.Qa7 Rb2+–) 32...Qh3 33.Qb2 Rd5 (33...Rc8 34.Rc6! Rc6 35.dc6+–) 34.Bf5 Qh5 35.Bh7!! (35.Bh7 Kh7 36.Rh5 Bh5 37.h3+–) 1–0. forsetinn (2170) – el_torro (1795), gameknot.com, 2014.

11.0–0 Bf5 12.Qb3 Qd6 13.Bc4 Rad8 14.Nc3 Bc3 15.Bc3 b6 16.Rac1 Be6 17.Qa2 Nc3 18.Rc3 Na5 19.Be6 Re6 20.Nd4 Rh6 21.f4 Qe7?? 22.Nf3?? c5 23.Ne5 Qe6 24.Qb2 Qe7 25.Nf3 Rhd6 26.d4 Rd5 27.Qc1 Nb7 28.Ne5 Qe8 29.Nf3 h6 30.Re1 f5 31.Qc2 Qe4 32.Qe4 fe4 33.Ne5 Rc8 34.Ng6 Kf7 35.Ne5 Ke6 36.Rf1 Rf8 37.Nc6 a6 38.dc5 Nc5 39.Nd4 Kf6 40.Rb1 Rd6 41.g4 g6 42.Kg2 Rfd8 43.Kg3 R8d7 44.Rb4 Nd3 45.Rbc4 Nb2 46.Rc8 Nd1=+ 47.Rf8 Rf7 48.g5 hg5 49.fg5 Kg5 50.Rf7 Nc3 51.h4 Kh6 52.Re7 Rf6 53.Ne6? Nd5 54.Rd7 Rf3–+ 55.Kh2 Nf6 56.Rd8 Ng4 57.Kg1–/+ Nf6?? 58.Rh8+– Nh7 59.Ng5 Rg3 60.Kh2 Rg5 61.hg5 Kg7 62.Rb8 b5 63.Ra8 Ng5 64.Ra6 Nf3 65.Kg3 Nd2 66.Kf4 Kh6 67.Rc6 Nb1 68.Ke4 Na3 69.Kd4 Kh5 70.e4 Kg5?! 71.e5 Kf5 72.Rf6 Kg5 73.Rf8 b4 74.e6 b3 75.e7 Nb5 76.Kc5 Nc7 77.Kc6 b2 78.Rb8 Ne8 79.Rb2 Kf5 80.Kd7 Ng7 81.Rf2 (81.Rf2 Kg5 82.Rf7+–) 1–0. Dumontelle,Joe – Navickas (1705), March, 1978.

11.0–0 Bf5 12.d4 Rad8 13.Qb3 Rd6 14.Nc3 (14.Qb7?? Rb8 15.Qb5 Rb5 16.Bb5 Rg6–+) 14...Bc3 15.Bc3 Be4 16.Rfe1 Rg6 17.g3 h5 18.Rac1 h4 19.Bb2 (19.Nd2!?=) 19...hg3+= 20.hg3 Qd6 21.Kg2? (21.Ne5 Ne5 22.de5 Re5 23.Be5 (23.Qb7 Rh6 24.Qc8 Kh7 25.f3 Reh5 26.Qg8 Kg8 27.Kg2 Rh2 28.Kg1 Qg3 29.Kf1 Ne3) 23...Qe5 24.Red1 (24.Qb7 Rg3 25.Kf1 Ne3 26.fe3 Qf6 27.Bf3 Qf3) 24...Rg3 25.Kf1 Ne3 26.Qe3 Re3 27.fe3–+) 21...Na5–+ 22.Qb5 Ne3 23.Kh2 Nc6 24.Qc5 (24.Nh4 Rh6 25.Kg1 Qd7–+) 24...Rh6 25.Kg1 Qg6 26.Nh2 b6 27.Bh5 Rh5 28.Re3 bc5 29.Rce1 Rh2! (29...Rh2 30.Re4 Re4 31.Re4 Rh5–+) 0–1. Widera,Jan (2115) – Malecki,Rafal (2115), VI Memorial Marka Piasty Poland, 2008.

10.a3 Bd6

11.0–0 Bf5 12.Qb3 Nf4 (12...Nb6 13.d4 (13.Rc1 Be6 14.Qc2 Rad8 15.Ba6 ba6 16.Qc6 Bd5 17.Qc3 f5 18.d3+=; 13.Qc3 Qf8 14.d4 Na4 15.Qb3 Nb2 16.Qb7 Nd4 17.Nd4 Reb8 18.Qd5=; 13.Rd1 Be6 14.Qc2 Rad8 15.d4 a6 16.Bd3 h6 17.e4 Bg4 18.e5=) 13...Rad8 14.Rc1 Qd7 15.Nbd2 Be6 16.Qc2 f5 17.Bd3 Qf7 18.g4=; 12...Qd7 13.Nc3 (13.Bb5 a6 14.Bc6 bc6 15.Qc4 Bg4 16.Ng5 Rab8 17.f3 Rb2 18.fg4+=; 13.Nd4 Nd4 14.Bd4 Nf4 15.Bf3 Ne6 16.Qb7 Nd4 17.ed4 Qe7 18.Qb5+=; 13.Kh1 Nb6 14.Qc3 Ne5 15.Ne5 Be5 16.d4 Bd6 17.Nd2 Rab8 18.Nc4=) 13...Be6 14.Ne4 Nf4 15.Bc4 Bc4 16.Qc4 Nd3 17.Nd6 Qd6 18.Qc3=) 13.Bc4 (13.Bb5 Ne6 14.Qd5 Bg4 15.h3 Rad8 16.Bc6 bc6 17.Qc6 Rb8 18.hg4=) 13...Ne6 14.Be2 (14.Qb7 Be4 15.Qb3 Bf3 16.gf3 Na5 17.Qb5 Qh4 18.f4–/+) 14...Nc5 (14...Rab8 15.Nc3 Nc5 16.Qc4 Be6 17.Nd5 Qd7 18.Qc3+=) 15.Qc3 Qf8 16.d4 (16.Bb5 Bd7 17.d4 Ne4 18.Qb3=) 16...Na4 17.Qb3 Nb2 18.Qb2 (18.Qb7=) 18...Rab8 19.Nbd2 a6 20.Rfc1 Qe7 21.Nc4 Qd7 22.Nd6 cd6 23.Qb6 Ne7 24.Nd2 Nd5 25.Qa5 Nf6 26.Nc4 Be4 27.Qb4 Rbd8 28.a4 Bc6 29.Qa5 Qe6 30.Ra3 Nd5 31.Bf3 Rc8 32.h3 Qg6 33.Qd2 Ne7 34.Bc6 Rc6 35.Na5 Rc1 36.Qc1 Rc8 37.Rc3 Rc3 38.Qc3 Qb1 39.Kh2 Qb6 40.Nc4 Qc7 41.Qb4 d5 42.Qd6 Qd6 43.Nd6 b6 44.Kg3 Kf8 45.Kf3 Nc6 46.Kf4 g6 47.Nc8 b5 48.ab5 ab5 49.Nb6 b4 50.Nd5 b3 51.Nc3 Ke7 52.Kf3 Na5 53.Nb1 Nc4 54.Ke2 f5 55.f3 Ke6 56.e4 b2 57.Kd3 Nd6 58.Nd2 Nb5 59.d5 Kf6 60.Kc2 Ke5 61.Kb2 Kd4 62.Kc2 Nd6 63.Kd1 h6 64.Ke2 Nf7 65.Nb3 Kc3 66.Nc5 fe4 67.Ne6 Nd6 68.fe4 Ne4 69.Kf3 Nf6 70.d6 Nd7 71.Ke4 Kc4 72.Nf4 Kc5 73.Ng6 Kd6 74.Kf5 Nb6 75.Nf4 1–0. Morley,Paul (2230) – Liso,H. Ricardo, WC17/WS44 ICCF, 2009.

11.0–0 Bf5 12.Re1 Rad8 13.Nc3 Nc3 14.Bc3 Ne5 15.Ne5 Be5 16.Be5 Qe5 17.d4 Qe7 18.Qa4 Be4 19.Rac1 a6 20.Qa5 c6 21.a4 Rd5 22.Qd2 Rd6 23.f3 Bd5 24.Bd3 Qg5 25.Qf2 f5 26.a5 Rde6 27.h4 Qh5 28.Rb1 R6e7 29.Qg3 Qf7 30.Qf4 g6 31.Re2 Rd7 32.h5 Qf6 33.hg6 hg6 34.g4 Rde7? (better is 34...Qh4!?+=) 35.gf5+– g5 36.Qg3 Re3 37.Re3 Re3 38.Rb7 Qd4 (38...Rd3 39.Qb8 Qf8+–) 39.Qg5+– Kf8 40.Kh2 Re8 (40...Qd3?? 41.Qg7 Ke8 42.Rb8) 41.Qh6 Kg8 42.Kh3 Qa1 43.Bb1 (43.Qg6 Kf8 44.Qd6 Kg8 45.Qg3 Kf8 46.Ba6 Qh1 47.Kg4 Bf3 48.Kg5 Qh5 49.Kf6 Qh6 50.Qg6 Qh4 51.Qg5 Qg5 52.Kg5+–) 43...Qe5?? (better is 43...Qh8 44.Qh8 Kh8+–) 44.Qh7 Kf8 45.Be4! Re7 (45...Be4 46.Qf7 mate Mate attack) 46.Re7 Qe7 47.Qe7 Ke7 48.Bd5 cd5 49.Kg4 Kf7 50.Kg5 (50.Kg5 d4 51.Kf4+–) 1–0. forsetinn (2175) – maksas (2285), gameknot.com, 2014.

11.Qc2 Bg4 12.h3 Bh5 13.Nc3 Nf6 14.Nb5= a6 15.Nd6 cd6 16.0–0 Ne5 17.Qd1 Rac8 18.d3 Bf3 19.Bf3 Rc7 20.Qe2 Rec8 21.Rac1 b5 22.Rc7 Rc7 23.Rc1 Rc1 24.Bc1 h6 25.Bb2 Qe6 26.Bb7 Qd7 27.f4 Qb7 28.fe5 de5 29.Be5 Nd7 30.Ba1 Qd5 31.Qb2 f6 32.Qc3 Nc5=+ 33.d4 Ne4 34.Qc8 Kh7 35.Bb2 Qg5 36.Bc1 Qg6 37.g4 h5 38.Kh2 h4 39.Qe6 Ng3 (39...Ng3 40.e4 Ne4–+) 0–1. Lee,Shuman – Morihama,Nicolau, IECG, 1999.

9.Be2 Be7

10.0–0 Be6 11.d4 Bf6 12.Nbd2 a6 13.a3 Rc8 14.Rc1 Nb8 15.e4 Nf4 16.e5 Ne2 17.Qe2 Be7 18.Rfd1 Qd5 19.Ne4 Bg4 20.Nc3 Bf3 21.gf3 Qe6 22.d5 Qf5 23.Ne4 Nd7 24.Ng3 Qg5 25.Rc4 f5 26.f4 Qg6 27.Qc2 Qg4 28.d6 Nb6 29.d7 Kf8 30.de8Q Ke8 31.h3 Qg6 32.Rc7 Rc7 33.Qc7 h5 34.Qb8 Kf7 35.Qb7 Qe6 36.Rd6 1–0. Keck – Bostel, corr BdF 1975.

10.a3 Bf6 11.d4 Bg4 12.Nbd2 Qe7 13.0–0 Qd7 14.Bb5 a6 15.Ba4 b5 16.Bb3 Nb6 17.Rc1 Rac8 18.Qc2 Na5 19.Bc3 Nb3 20.Qb3 Be6 21.Qb1 Nc4 22.Bb4 Nd2 23.Nd2 Be7 24.Be7 Re7 25.Rc5 Qd6 26.Qe4 (26.Ne4 Qd7+=) 26...c6 (26...f5 27.Qf3=) 27.Rfc1+= Bd5?? (better is 27...h6+=) 28.Qd5!!+– (28.Qd5 Qd5 29.Rd5+–) 1–0. Vasut,Karel (2165) – Horak,Karel (1785), Havlickuv Brod Vysocina op–B, 2006.

10.0–0 Bf6

11.d4 a6 12.Nc3 h6 13.Rc1 Nc3 14.Bc3 Bf5 15.Qb3 Be4 16.Bc4 Qd7 17.Nd2 Bg6 18.Be2 Bd4=+ 19.Bf3 Bc3 20.Qc3 Rad8 21.Rfd1 Qe6 22.Nb3 Rd1 23.Rd1 a5 24.Nc5 Qa2 25.Nb7 Ne5 26.Bc6 Qe2 27.Re1 Qg4?? 28.f3 Nf3 29.Bf3 Qg5 30.e4 a4 31.Qc6 Ra8 32.Nc5 Qd2?? 33.Qa8 Kh7 34.Rd1 Qe3 35.Kh1 Qc5 36.Qa4 (36…f6 37.Qa1+–) 1–0. Grosmelder,Karl – Efimova,Nadezhda, 1999.

11.d4 Bf5 12.Nc3 Ncb4 13.Qd2 Nc3 14.Bc3 Nd5 15.Rfc1 Nc3 (15...Be4 16.h3=) 16.Rc3= 0–1. Kamaletdinov,Farit (1950) – Mescheriakov,Andrei A (1985), Astrakhan RUS, Open, 2012.

11.d4 Bf5 12.Nbd2 Ncb4 13.Nb3 Nc2+= 14.Rc1 Nce3 15.fe3 Ne3 16.Qd2 Nf1 17.Bf1 (17.Rf1 c6 18.Ne5 Be4+=) 17...Be4 (17...c6 18.Qf4 Be4+=) 18.Bc4 (18.Qf4 c6+=) 18...b6 (18...Bf3!? 19.gf3 Rb8+=) 19.Qf4= Bf3 20.Qf3 c5 (20...Rb8 21.Rf1=) 21.Bb5 (21.dc5 Bb2 22.Bf7 Kh8 23.Be8 Qe8+=) 21...Re7 (21...Re6 22.Rd1 Rd6 23.Bd3 Bd4 24.Nd4 cd4 25.Bc4=) 22.Rd1+= c4 (22...Qf8 23.Ba3 Rd8 24.dc5 Rd1 25.Qd1+/–) 23.Bc4+/– Rc8 24.Bd3 Qe8 25.Kf1 Bh4 (25...Qd8!?+/–) 26.g3+– Re3 27.Qf2 Qe6 28.Kg1 Bg5 29.d5! Qg4 30.Rf1 Rf8 31.Nc1 Qd7 32.Ba3 Re5 33.Qf3 Rd8 34.d6 Be3 35.Kh1 Bc5 36.Bb2 Re3= 37.Qd5 Re6 38.Bc4= Qd6 39.Qd6+/– Red6 40.Rf7+– Rd1 41.Kg2 R8d2 42.Kh3 h5? 43.Rg7 Kf8 44.Bf6 Ke8 45.Bf7 Kf8 46.Be6 Ke8 47.Ra7 1–0. Lapshun,Yury (2440) – Wang,David (2110), Canadian Open, Kapuskasing CAN, 2004.

9.Be2 Bf5

10.0–0 Nb6 11.Nc3 Bd3 12.a3 Bc5 13.Rc1 Nc4 14.Na4 Nb2 15.Nb2 Be2 16.Qe2 Ba3 17.Rb1 a5 18.Na4 Bb4 19.Rfc1 Rb8 20.Qc4 Bd6 21.d4 Nb4 22.Qb5 c6 23.Qh5 g6 24.Qh6 f5 25.Ng5 Re7 26.Ra1 Qf8 27.Qh4 h6 28.Nf3 Nd5 29.Nc5=+ Kg7 30.Nd2 Nb4 31.Qh3 Qf6 32.Ncb3 b6 33.Qf3 Ra8 34.Nc4 Bc7 35.g3 Ree8 36.Nb2 g5 37.Qg2 Kh8 38.Nd2 f4 39.Nd1 Re6 40.Ra3 Rf8 41.Qh3 fe3 42.Re3 Rfe8 43.Nc3 Re3 44.fe3 Qe6 45.Qe6 Re6 46.Nde4 a4 47.Kf1 a3 48.Ke2 Re8 49.Ra1 a2 50.Kd2 c5 51.Kc1 Rf8 52.Kb2 Rf3–/+ 53.Na2 Nd3 54.Kc2 Re3 55.Nec3 Ne1 56.Kd2–/+ cd4 57.Re1 Re1 58.Ke1 dc3 59.Nc3 Be5 60.Nd5 b5 61.Kd2 Kg7 62.Kd3 Kf7 63.Ne3 h5 64.g4 Bf4 65.Nf5? hg4–+ 66.Nh6 Kg6 67.Ng4 Kh5 68.Nf6? Kh4 69.Kd4 Bh2 70.Kc5 Be5 71.Ne4 g4 72.Kb5 ½–½. marekt – tired rook, ChessWorld.net, 2004.

10.0–0 Rc8 11.d4 Qe7 12.a3 Ba5 13.Qb3 Nb6 14.d5 Nd8 15.Qb5 Bb1 16.Rab1 f5 17.Qa5 f4 18.ef4 Qe4 19.Bb5 1–0. Zschalich – Zumpe, corr DDR–M–790 1986.

10.0–0 Ne5?? 11.Ne5+– f6 12.Nf3 c5 13.Qb3 a5 14.a3 Bd2 15.Nbd2 b6 16.Bc4 Be6 17.Ne4 h6 18.Rfd1 a4 19.Qa2 Ra7 20.Bd5 Bd5 21.Rd5 Qe7 22.Rd7 Qe6 23.Nf6! Kf8 24.Nh7 Kg8 25.Qe6 Re6 26.Ra7 (26.Ra7 Rg6 27.Ne5+–) 1–0. Hasler,Ulrich – Schumacher, corr ICCF EU–III–1006, 1988.

10.a3 Ba5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Re8 8.a3 Ba5 9.cd5 Nd5 10.Be2 Bf5).

10.a3 Bf8 11.0–0 a6 12.Nc3 b5 13.Nd5 Qd5 14.d3 Bg6 15.Nh4 Rad8 16.Ng6 hg6 17.a4 Nb4 18.d4 c6 19.Bf3 Qd7 20.ab5 ab5 21.Qb3 c5 (21...Qe6!? 22.Qc3 Nd5+/–) 22.dc5+/– Bc5 23.Bc3 Qd3 24.Rab1 Na2 25.Ba5 Qb3 26.Rb3 Rb8? (better is 26...b4 27.Bd8 Rd8+–) 27.Ra1 Rec8 28.Ra2 1–0. forsetinn (1950) – haddibje (1785), gameknot.com, 2013.

10.0–0 a6

11.a3 Bc5 12.d4 Bd6 13.Nc3 Qe7?? (better is 13...Nc3 14.Bc3 Ne7+=) 14.Nd5+– (14.Nd5 Qe4 15.Nc3+–) 1–0. forsetinn (2030) – ergosy (1735), gameknot.com, 2013.

11.a3 Be7 12.d3 Qd6 13.Qb3 Qe6 14.Nbd2 Rab8 15.Rfe1 Bg6 16.d4 Bf6 =.

11.a3 Be7 12.d3 Qd6 13.Qc2 Qg6 14.Nbd2 Rad8 15.Ne4 Nb6 16.Rfc1 Rd5 17.Nfd2 h6 18.Bf3 Red8 19.d4 Ne5 20.de5+= Rd2 21.Qd2 Rd2 22.Nd2 c6 23.a4 Nd7 24.Nc4 Nc5 25.Ba3 Nb3 26.Be7+/– Na1 27.Ra1 Qe6 28.Nd6 Qe5 29.Rc1 Bg6 30.Nb7 Qb2 31.Rf1 Qb7 32.Bc5 Bd3 33.Ra1 Qb2–+ 34.Bd4 Qc2 35.Bd1 Qc4 36.Bf3 c5 37.Be5 Qb4 38.Rc1 c4 (38...c4 39.h3 f6 40.Bd5 Kh7–+) 0–1. Dopper,Johan – Zbroja,Ted, corr 3GMM–F, 2001.

11.a3 Be7 12.d4 Qd6 13.Bd3 Qg6 14.Bf5 Qf5 15.Nbd2 Qd3 16.Rb1 Bd6 17.e4 Re4 18.Ne4 Qe4 19.Re1 Qg4 20.h3 Qf5 21.Ne5 Nce7 22.Nc4 Bf4 23.Qf3 c6 24.g3 Bc7 25.Qf5 Nf5 26.a4 b5 27.Ne5 Be5 28.de5 b4 29.Rbc1 Nfe7 30.Kg2 h5 31.e6 Rd8 32.Kf3 fe6 33.Re6 Kf7 34.Re4 Rb8 35.Ke2 b3 36.Kd2 Rb6 37.Rc5 g6 38.Kc1 Nf5 39.Kb1 Nd6 40.Re5 Nb7 41.a5 Nc5 42.ab6 1–0. Degterev,Pavel (2240) – Sarosy,Zoltan (2045), IECG, 2009.

11.a3 Bf8 12.d3 Qd7 13.Qc2 Rad8 14.Rd1 h6 15.Nc3 Nb6 16.Ne4 Qe7 17.Ng3 Bg6 18.Rac1 Rd7 19.Ne1 Qe6 20.Bf3 Nd5 21.Qc4 Ne5 22.Bd5 Rd5 23.Qc7 Nd3 24.Nd3 Bd3 25.Qb7 Rb5 26.Qf3 Rc8 27.Rd3 Rb2 28.Rcd1 Qa2 29.Rd7 Ba3+= 30.Nf5 Bf8 31.h3 Rb1 32.Rb1 Qb1 33.Kh2 Qb3 34.Ne7 Be7= 35.Re7 a5 36.Rb7 Qe6 37.Ra7 Rc5 38.Qa8 ½–½. Muri,Heinrich – Lehto,A, corr ICCF, 2002.

11.a3 Bf8 12.d4 Qf6 13.Nc3 Nc3 14.Bc3 Bd6 15.Qb3 Qg6 16.d5 Ne7 17.Qd1 Be4–/+ 18.Bc4 b5 19.Bb3 Rad8 20.Qd4?? Bf3 (20...Bf3 21.Qg7 Qg7 22.Bg7 Bd5 23.Bd5 Nd5–+) 0–1. Laine,Jari (1840) – Vasquez,Fernando, FICGS, 2006.

11.Qb3 Na5 12.Qd1 b5 13.d3 Nc6 14.Qc2 Bd7 15.Nc3 Nc3 16.Bc3 Bc3 17.Qc3 Ne7 18.Rfc1 Nd5 19.Qd4 Be6 20.Rc5 b4 21.Kf1 Qd6 22.Bd1 Nc3 23.Bb3 a5 24.Be6 Qe6 25.Qc4 Qc4 26.Rc4 Rec8 27.d4 Rab8 28.Ne5 Rb5 29.Nc6 Re8 30.h3 Ne4 31.Ke2 f6 32.g4 h5 33.f3 Nd6 34.Rc5 Rc5 35.dc5 Nc4 36.Kd3 Ne5 37.Ne5 Re5 38.Kd4 hg4 39.hg4 Re7 40.a3 b3 41.a4 c6 42.Rb1 Rb7 43.Kc3 Kf7 44.Rb3 Rb3 45.Kb3 Ke6 46.Kc4 Ke5+= 47.Kc3 Kd5 48.e4 Kc5 49.f4 Kd6 50.Kc4 g5 51.fg5 fg5 52.Kd4 c5 53.Kc4 Ke5 54.Kc5 ½–½. hertford – trak_9, ChessWorld.net, 2002.

11.Nc3 Rb8 12.Qb3 Be6 13.Qc2 Qd7 14.a3 Bf5 15.d3 Nc3 16.Bc3 Bd6 17.Rab1 Qe7 18.Qa4 Ba3=+ 19.Rb3 Bc5 20.d4 Bd6 21.d5 Ne5 22.Rc1 Nf3 23.Bf3 Be4 24.Be4 Qe4 25.Qe4 Re4 26.Bd4 b5 27.f3 Ree8 28.Ra1 b4 29.Ra5 Ra8 30.e4 f6 31.Kf2 Rec8 32.Bc5 Bc5 33.Rc5 a5 34.Rb1 Ra7 35.Ra1 a4 36.Rb5 c5 37.dc6 Rc6 38.Rb4 Rc2 39.Kg3 a3 40.Rb3 a2 41.f4 Kf7 42.Kf3 g5 43.fg5 fg5 44.h3 Ke6 45.g3 Rh2 46.Rb6 Ke5 47.Rb5 Kd4 48.Rd5 Kc3 49.Rb5 Rh3 50.Kg4 Rh2 51.Kf5 Rf2 52.Kg4 Rb2 53.Rc5 Kd4 54.Rcc1 Ke4 55.Kg5 Rg7 56.Kh6 Rg3 57.Re1 Kf5 58.Rf1 Ke6 59.Rfe1 Kf7 60.Rh1 Rg6 61.Kh5 Kg7 62.Rag1 a1R (62...a1R 63.Ra1 Rb5 64.Kh4 Kh6 65.Ra5 Ra5 66.Re1 Rh5#) 0–1. Pierred (2175) – Rhilll (2300), Rated game, 2m + 0s, 2005.

11.Nc3 Nc3 12.Bc3 Bc3 13.dc3 Qd1 14.Rfd1 Rad8 15.Nd4 Nd4 16.cd4 Rd6 (16...Re7 17.Rac1=) 17.Rac1+= Re7 18.Rd2 Kf8 19.Rb2 c6 20.Bf3 Be6 21.h4 Bd5 22.Bd5 Rd5 23.Rcb1 Rb5 24.Kf1 h5 25.Ke2 Rd7 26.f3 Ke7 27.g4 ½–½. terrier (2125) – zunsurfer (2065), gameknot.com, 2015.

11.Nc3 h6 12.Qb3 Nb6 13.a3 Bd6 14.d3 (14.Qa2 A) 14...Qd7 15.d4 (15.Rac1 Rad8 16.h3 Bh3 17.Nh4 g5 18.gh3 Qh3 19.f4 gh4 20.Rf2) 15...Be6 16.Qb1 Bc4 17.Qc2 Na5 18.e4 Bb3 19.Qd3 Bc4 20.Qc2; B) 14...Be7 15.d4 Be6 16.Qb1 Qd6 17.Qc2 Rad8 18.Nd2 Qd7 19.h3 Na5 20.Rac1; C) 14...Be6 15.Qb1 Qd7 16.d4 Bc4 17.Qc2 Be2 18.Qe2 Qe6 19.Rad1 Nd5 20.Rfe1; 14.Na4 Na4 15.Qa4 Qd7 16.g3 b5 17.Qb3 Be6 18.Qc3 f6 19.d3 a5 20.Rfc1) 14...Qe7 15.Qc2 (15.g3 Rad8 16.Rfe1 Qd7 17.e4 Be6 18.Qd1 Bc5 19.Qc2 Qd6 20.Nd1; 15.Rfe1 Rac8 16.Qc2 Rcd8 17.g3 Qe6 18.Nd2 Be7 19.Nde4 Bg6 20.Rac1; 15.d4 Na5 16.Qa2 c5 17.d5 Bc2 18.Nd2 c4 19.Rac1 Bb3 20.Qa1) 15...Rad8 16.Rfd1 Rd7 (16...Qe6 17.h3 Bh3 18.gh3 Qh3 19.d4 Re6 20.d5) 17.Rdc1 (17.h3 Bg6 18.Ra2 Bf5 19.Raa1 Bg6 20.Ra2) 17...Ne5 (17...Be5 18.e4 Bg4 19.Ne5 Ne5 20.f3) 18.e4 Be6 (18...Bg6 19.a4 a5 20.Nb5) 19.Nd1 (19.Nd4 Ng4 20.Ne6 Qe6=) 19...Nf3+= 20.Bf3 Bf4 21.Ne3 Qg5 22.Re1 Qb5 23.Nd5 (23.d4 Na4 24.d5 Nb2+=) 23...Bd5+= (23...Nd5 24.ed5 Rd5 25.Bd5 Bd5 26.Re8 Qe8 27.Qc3+/–) 24.ed5 Re1 25.Re1 Rd8 26.g3 Bd6 27.Rb1 Qa4 28.Qc3 f6 29.Bc1 Be5 30.Qb3 Qb3 31.Rb3 Kf8 32.Be3+= Nd5 33.Bc5 Bd6= 34.Bd6 Rd6 35.Rb7 Ne7 36.Be2 Rc6 37.Rb8 Kf7= 38.Ra8 Nf5 39.Bh5 g6 40.Bf3 Rd6 41.a4 Rd3 42.Kg2 Nd4 43.Be4 Ra3 44.Ra6 g5 45.Ra7 f5 46.Rc7 Kf6 47.Rc4 fe4 48.Rd4 Ke5 49.Rb4 Ra2 50.h3 e3 51.Kf3 ef2 52.Kg2 Kf5 53.Rc4 Ke5 54.Rc6 f1Q 55.Kf1+= Ke4 56.g4 Ra4 57.Rh6 Ra1 58.Kg2 ½–½. Gierth,Karlheinz (2265) – Dammer,Axel (2400), RSX7E – A00 – Sokolsky–2, 2009.

11.Nc3 h6 12.Qb3 Nb6 13.d3 Bd6 14.Ne4 Be4 15.de4 Re4 16.a3 Ra4 17.g3 Rb8 18.Rfd1 Na5 19.Qc3 Qf8 20.Rd4 Nc6 21.Rdd1 Ra5 22.Qc2 Ba3 23.Bc3 Rd5 24.Nd4 Nd4 25.Rd4 Bd6 26.Rg4 Rg5 27.Rg5 hg5 28.Rd1 Qe7 29.Rd4 Qe6 30.Bd3 Be7 31.Bh7 Kf8=+ 32.Re4 Qh6 33.Bg7 Qg7 34.Qc7 Re8 35.Re7 Qa1 36.Kg2 Re7 37.Qd8 Re8 38.Qb6 Kg7 39.Qb7 Rd8 40.Bf5 Rd2 41.Qf3 a5 42.Qg4 Qf6 43.e4 Kf8 44.Qf3 Qd6 45.Bg4 a4 46.Bh5 f6 47.Bg6 Qb6 (47...Qb6 48.Bf5 Qb3–+) 0–1. wiking – rexempire, internet, 2009.

11.d3 Ne3 12.fe3+= Re3 13.d4 Qe7 14.Bc4 Na5 15.Bb3 Nb3= 16.ab3 Bd3 17.Rf2 Qf4 (23...Qf4 24.Kh3 Qf3 25.Rg3 Qh5 26.Kg2 Re2 27.Qe2 Qe2 28.Kh1 Qb2 29.Ra5 Bg3 30.hg3 Re8 31.Re5 Re5 32.de5 Qb1 33.Kg2 Qb3 34.g4 Qd5 35.Kf2 Qd4 36.Ke1 Qe5 37.Kd1 c5 38.g5 b5 39.g6 Qd6 40.Ke1 Qg6 41.Kd2 b4 42.Ke3 b3 43.Kf4 b2 44.Ke5 b1Q 45.Kd5 Qbd3 46.Kc5 Qgd6#) 0–1. Stefan – Mueller, corr, 1973.

11.d3 Qe7 12.a3 Ba5 13.d4 Qe6 14.Qb3 Rad8 15.Nbd2 b5 16.Rfc1 Re7 17.a4 Bd2 18.Nd2 Na5 19.Qd1 Ne3 20.fe3 Qe3 21.Kf1 b4 22.Nf3 Nb3 23.Ba6 c5 24.Qe2 Qe2 25.Be2 cd4 26.Bc4 Nc1 27.Rc1 d3 28.Rd1 Rc7 29.Bb3 Be6 30.Be6 fe6 31.Bd4 Rc4 32.Bb6 Rd6 33.a5 Rc2 34.Nd2 Rdc6 35.Kf2 b3 36.Ke3 b2 37.Rb1 Rd6 38.Ba7 Kf7 39.Bb8 Rd8 40.Bg3 g5 41.h4 gh4 42.Bh4 Rd7 43.a6 e5 44.Rf1 Kg8 45.Rb1 Kg7 ½–½. Curlywurly (2665) – marekt (2305), ChessWorld.net, 2003.

11.d3 Nf6 12.a3 Bd6 13.h3 (13.Nbd2 Ne5 14.Ne5 Be5 15.Be5 Re5=) 13...Ne5 14.d4 (14.Ne5 Be5 15.Be5 Re5=) 14...Nf3+= 15.Bf3 Be4 (15...c6 16.Nd2+=) 16.Nd2= Bf3 17.Nf3 (17.Qf3 c6=) 17...Qe7 (17...Qd7 18.Qb3=) 18.Re1 (18.d5 c5=) 18...Ne4 19.Qd3 h6 (19...Rad8 20.Red1=) 20.Re2 Rad8 21.Qc2 b6 (21...c5 22.Nd2 Ng5 23.dc5 Bc5 24.Nb3=) 22.Nd2 (22.d5 Nf6 23.Rd2 Bc5=) 22...Nd2 (22...Nf6 23.Qc4=) 23.Rd2 Qe4 24.Qe4 ½–½. Genne,Rene (1795) – Deurvillier,Martial (1620), Saint Denis RUF, 2012.

11.d4 Qe7 12.a3 Bd6 13.Nbd2 b5 14.Re1 b4 15.Qc1 Qd7 16.Bd1 Bd3 17.Bb3 Nb6 18.ab4 Nb4 19.Qc3 Bb5 20.e4 Nd3 21.Ng5? Bb4–/+ 22.Qc2 Ne1 23.Re1 Bd2 24.Qd2 Bc4 25.e5?? Qb5 26.Bd1 f6 (26...f6 27.Ne4 fe5 28.de5 Rad8–/+; 26...h6 27.Ne4–+) 0–1. Dupont,Gerhard – Gola,Martin, corr DDR, 1985.

11.d4 Qf6 12.a3 Bd6 13.Nbd2 Nb6 14.Rc1 Qg6 15.Nh4 Qh6= 16.Nhf3 Qg6 17.Nh4 Qh6 18.Nhf3 Qg6 19.Nh4 Qh6 ½–½. Harry,Ganz (2075) – Groth,Gregor (2015), remoteschach.de, 2005.

11.a3 Bd6

12.Nc3 Nb6 13.d4 Na5 14.Bd3 Bd3 15.Qd3 Nbc4 16.Bc1 b5 17.e4 Nb3–/+ 18.Bg5 f6 19.Rab1 Nc5! 20.Qd1 Ne4 21.Ne4 Re4 22.Bc1 Qe7 23.a4 c6 24.Qb3 Qe6 25.ab5 ab5 26.Rd1 Re2 27.d5 cd5 28.h3 b4 (28...b4 29.Bb2 Qe4–+ (29...Nb2?! 30.Rb2 Rb2 31.Qb2–+)) 0–1. Weisse,Mark – Leistner,Axel_Eberhard (2100), RSS7E–16 remoteschach.de, 2003.

12.Nc3 Nf6 13.d4 b5 14.Rc1 Na5 15.Nh4 Be6=+ 16.Qc2 Bb3 17.Qf5 Nc4 18.Bc4 Bc4 19.Rfd1 Qe7 20.Ra1 a5 21.Qf3=+ g6 22.Rdc1 Qe6 23.h3 Rab8 24.Rc2 b4 25.ab4 ab4 26.Na4 Ne4 27.Nc5 Bc5 28.dc5 Bd5 29.Qg4 Qg4–/+ 30.hg4 b3 31.Rd2?? (better is 31.Rcc1–/+) ½–½. Scholz,Guenter – Packroff,Hermann, BdF, 2003.

12.Nc3 Nf6 13.d4 Qd7 14.Rc1 Rad8 15.Re1 Nb8 16.Bd3 Bd3 17.Qd3 c5 18.Qc2 cd4 19.Nd4 Nc6 20.Nf5 Qe6 21.Nd6 Rd6 22.Red1 Rd1 23.Rd1 b5 24.Ne2 ½–½. Van Rooijen,Peter (1715) – Viklund,Lars (1765), SI–2003–0–00002, 2003.

12.d3 Nb6 13.Nc3 Qe7 14.Qc2 Ne5 15.Nd2. VELEROFONTIS – Badkarma, playchess.de, 2002.

12.d4 b5 13.a4 Rb8 14.ab5 ab5 15.Bd3 Qd7 16.Bf5 Qf5 17.Qb3 Ncb4 18.Nc3 Nc3 19.Bc3 Nd5 20.Bd2 h6 21.Ra5 c6 22.Rc1 Rb6 23.h3 Qg6 24.Ne1 Kh7 25.Nd3 f5 26.Ra7 Bb8 27.Ra2 Qd6 28.g3 Qg6 29.Kh1 b4 30.Qc4 Bd6 31.Rb2 Qe6 32.Rcb1 Qe4 33.Kg1+= Qf3 34.Ne1 Qe4 35.Nd3 h5 36.h4 Qg4 37.Nf4 Bf4–/+ 38.ef4 Re4 39.Qd3 Nf4–/+ 40.Bf4 Rf4 41.Rb4 Rb4 42.Rb4 c5! 43.Rc4 Rd4 44.Rd4 cd4 45.f4 Qg6 46.Kf2 Qf6 47.Qe2 Kh6 48.Qe8 d3 49.Ke3 Qd6 50.Kd2 ½–½. Muri,Heinrich (2385) – Preziuso,Toni (2350), WS/MN/013 ICCF, 2006.

12.d4 Qe7 (13.Qb3 Be6=+) =+. Grund,Karl – Mueller,B, corr, 1975–77.

12.Re1 Rb8 13.d3 g6?? 14.e4+– Be4 15.de4 Nf6 16.Nbd2 Ne4 17.Ne4 Re4 18.Qc2 Qe7 19.Bd3 (19.Bd3 Re1 20.Re1+–) 1–0. Alvarez Villar – Valica, TT–16 ETC, 2005.

12.Re1 Ne5 13.Ne5 White fights for the Initiative 13...Be5 14.Be5 Re5 15.d4 Re8 16.Bf3 Bb1 17.Qb1 Rb8 18.Rc1 c6 19.Rc5 Qd6 20.Bd5+/– cd5 21.Qc2 g6 22.a4 Rbd8 23.Rb1 Re7 24.a5 Qe6 25.Rc7 Rdd7 26.Rbb7 Rc7 27.Rc7 Rc7 28.Qc7 Kg7 29.Qe5 Kf8 30.Qc7?? Ke8 31.h3 h5 32.Kf1 Qd7 33.Qc5 Qa4? 34.Kg1 Qd7+/– 35.f4 Kd8? 36.Qb6+– (36.Qb6 Qc7 37.Qa6+–) 1–0. Trokenheim,Marek – Larsson,Olle, corr SSKK 3–06, 1984.

12.Re1 Qe7 13.d3 Ne5 14.Ne5 Be5 15.Be5 Qe5 16.d4 Qe7 17.Bc4 Rad8 18.Bd5 Rd5 19.Nc3 Rdd8 20.Qf3 Bc8 21.Nd5 Qd6 22.Nf4 c5 23.dc5 Qc5 24.Red1 Rd1 25.Qd1 b5 26.Qd3 Bf5 27.Qd5 Rc8 28.h4 Qd5 29.Nd5 Kf8 30.Rd1 Be6 31.Nf4 Ke7 32.e4 a5 33.Ne6 Ke6 34.Rd5 Rb8 35.f4 b4 36.ab4 ab4 37.Rd2 b3 38.Rb2 f5 39.Kf2? fe4–+ 40.g4 Kd5 (40...Kd5 41.Rb1 Kd4–+) 0–1. Dopper,Johan – Hage,Henk, corr NBC KE02, 1999.

12.Re1 Qe7 13.d4 Ne3 14.fe3+= Qe3 Black gets in control 15.Kh1 Qh6 16.Nbd2 Bg3 17.Rf1 Rad8 18.Nb3 Bg4 19.Bc1 Qh5 20.h3 Bh3 21.gh3 Qh3 22.Kg1 Re4 23.Rf2 Rg4 24.Qf1 Bf2 25.Kf2 Qg3 26.Ke3 Rgd4! 27.Nbd4 Nd4 28.Bd1 Nf3 29.Bf3 Qe5 30.Kf2 Qa1 31.Bb7 Rd6 32.Qc4 c5 33.Bf3 Qd4 34.Qd4 Rd4 35.Ke2 c4 36.Bb7 Rd6 37.Bd2 h5 38.Bb4 Rb6 39.Bd5 a5 40.Bd2 Rb3 41.a4 Ra3 42.Bc6 c3 43.Bf4 Rb3 (43...Rb3 44.Be5 g5–+; 43...c2 44.Bc1 Rc3 45.Be4–+) 0–1. Dopper,Johan – Rudbeck,Joergen, corr 3GMM–F, 2001.

10.0–0 Rb8

11.a3 Ba5 12.Nd4 Nd4=+ 13.Bd4 a6 14.Qb3 Nf4 15.Bc4= Be6 16.Be6 Re6 17.Qd1 Qd5–/+ 18.f3 Rd8 19.Kh1 Qh5 20.ef4 Rd4–+ 21.Re1 Qg6 22.Re6 Qe6 23.g3 h6 24.Qf1 Qb3 25.Nc3 Rd2 26.Ne4 Rc2 27.Rd1 f5 (27...f5 28.Qd3 Qd3 29.Rd3 b5–+) 0–1. Wittal,Werner – Baer,Werner, TT–02.48 TSC, 2002.

11.a3 Bd6 12.Nc3 Nc3 13.Bc3 Qd7 14.Qb3 b5 15.Qb2 (< 15.Bb5 Bd3!? 16.Bc6 Qc6–/+ (16...Rb3? 17.Bd7 Rd8 18.Ba4+–)) 15...Ba3 (15...f6 16.Bb4=) 16.Ra3+= b4 17.Ra6 bc3 18.Qc3 Be4 19.Rc1 Nd8 20.d3 (20.Qc7?? Qc7 21.Rc7 Rb1 22.Bf1 Bd3–+) 20...Bd5 21.Ra7 Nc6 22.Ra3 f5 23.d4 Rb7 24.Bc4 Reb8 25.h3 Ne7 26.Ne5 Qe6 27.Bd5 Qd5 28.Ra6 g6 29.Qa3 Qd8 30.Qc5 Rb1 31.Rb1 Rb1 32.Kh2 Rb6 33.Qc4 Qd5 34.Rb6 cb6 35.Qc7 Qe6 36.Nd7 Kf7 37.Nb6 1–0. Krasny,Henryk Jan – Bilsel,Sabahaddin, corr TKM/SF/01, 2001.

10.0–0 Qd6

11.a3 Bc5 12.d4= Bb6 13.Nc3 Nc3 14.Bc3 Rad8 15.a4 a5 16.Nd2 Qg6 17.Bf3 Bd3 18.Re1 Ne7 19.Bh5 Qh6 20.Nb3+= Bc4 21.Na5 Ba5=+ 22.Ba5 Rd5 23.Bf7 Kf7 24.Bc7 Rd7 25.Bf4 Qg6 26.e4 Nc6 27.d5 Re4 28.Re4+/– Qe4 29.Qh5 Kg8 30.dc6 bc6 31.Qe5 Qg6 32.Qg5 Qe4 33.Qe5 Qg6 34.a5 h6 35.h3 Bd5 36.Bg3 Qf7 37.a6 Ra7 38.Qb8 Kh7 39.Qb1 Kg8 40.Qb8 Kh7 41.Qb1 Kg8 42.Bb8 Ra8 43.a7 (43.a7 Kh8 44.Bd6+–) 1–0. Scheller,Claus Dieter – Sislian,Hanno, Schleswig Holstein–ch M, 1994.

11.Bb5 a6 12.Be2 Rad8 13.a3 Ba5 14.Qb3 Nf4 15.Bc4 Ne6 16.d4 b5 17.Be2 Bb6 (17...Nf4 18.Bb5 Rb8 19.Nc3–/+) 18.Nc3 Na5 (18...Bd4 19.Nb5 ab5 20.ed4=+) 19.Qa2 Nf8 (19...c5 20.dc5 Bc5 21.Rfd1=) 20.Rad1 Ng6 21.Rd2 c6 22.Rfd1 Bc7 23.g3 h6 24.Ba1 ½–½. Zamora,Jorge – Ruecker,Udo, corr ICCF–Cup8/9 V125, 1990.

11.Nc3 Rad8 12.Nb5 Qh6 13.Nfd4 (13.d3 Ne3 14.fe3 Qe3 15.Rf2 Bd3 16.Bd3 Rd3=+) 13...Nd4 14.Nd4 Bd6 (14...Bg6 15.Qc1=+) 15.g3 (15.h3 Bc8=+) 15...Bh3–/+ 16.Re1 c5 17.Nf3 (17.Nb5 a6 18.Nd6 Qd6=+) 17...a6 (17...Bg4 18.d3–/+) 18.Rc1 (18.Qb3 Nb4=+) 18...b5–/+ 19.a4 Bd7 20.ab5 ab5 21.Ra1 Bc6 22.Nh4 g6 (22...Be5 23.Be5 Re5 24.d3–/+) 23.Bf3 c4 24.Ra6 Bb7 25.Ra7 Bc6 26.Qa1 (26.Ra6!? Bb7 27.Ra7=) 26...Bb4 27.Qa6 Re6–/+ 28.Bd5 Rd5 29.Ra8 Bf8 30.Rb8 Rd2 31.Ba3 Re8 32.Re8–/+ Be8 33.Qa8 Ba3 34.Qe8=+ Qf8 35.Qb5 c3 36.Nf3 Rb2 37.Qc4 c2 38.Kg2 c1Q–/+ 39.Rc1 Rb4 ½–½. Krolik – Kuhlmann,AEJ, corr ICCF TT/4/90 SF, 1996.

11.d3 Qh6 12.a3= Bd6 13.Nc3 Bg4 14.h3 Nc3–/+ 15.Bc3 Bh3! 16.gh3?? Qh3–+ 17.Re1 Re6 (17...Re6 18.Ne5 Rg6 19.Bg4 Be5–+) 0–1. StephenHilton (1645) – alishsan, internet, 2006.

11.d4 Rad8 12.a3 Ba5+=.

11.d4 Rad8 12.Nbd2 h6 (12...Qf6 13.Bc4=+) 13.Bc4 (13.Rc1 Qe6=+) 13...Nb6 (13...Na5 14.a3 Bd2 15.Nd2 Nc4 16.Nc4=+) 14.Bb3 (14.a3 Bd2 15.Nd2 Nc4 16.Nc4 Qg6=+) 14...Na5 (14...Qf6 15.a3 Bd6 16.Rc1=+) 15.Rc1 (15.Bc2 Bc2 16.Qc2 Qc6=) 15...Nb3–/+ 16.ab3 c6 (16...Nd5 17.Nc4 Qe6 18.Ba3=+) 17.Ra1 Bd3 18.Re1=+ a6 19.e4 Qf4 20.e5 Nd5–/+ 21.Rc1 Qg4 22.h3 Qg6 23.Nh4 Qe6 24.Nhf3 Qf5 25.Nh4 Qd7 26.Nhf3 Qe6 27.Nh4 g5 28.Nhf3 g4 29.hg4 Qg4 30.g3 Kh8 31.Ra1 Rg8 32.Nh2 Qf4 33.Nhf3 Bd2 34.Kh1? Qf5–+ 35.Nd2 Qh3 (36.Kg1 Bf5 37.Qf3 Kg7 38.Ne4 Bg4 39.Qg2 Qh5 40.Nd6 Rd7 41.Qh2 Qg6 42.Qh4 Be6 43.Ba3 Qd3 44.Kg2 Kh7 45.Bc1 Rg6 46.Ne4 b6 (< 46...Qb3 47.Nc5 Qc3 48.Nd7 Bd7 49.Be3+=) 47.Ng5 Kg8 48.Ne6 fe6 49.Bh6 Qb3 50.Bd2 Qd3 51.Rh1 Kf8 52.Bc1 Ne7 53.Rd1 Qc4 54.Bg5 Nf5 55.Qh8 Kf7 56.Qh7 Rg7 57.Qh5 Kf8 58.Qh8 Kf7 59.Bf6 Rg6 60.Rh1 Rg8 61.Qh7 Ng7 62.Ra3 Kf8 63.Rf3 Rf7 64.Qg6 Qd5 65.Be7 Ke7 66.Qf7 Kd8 67.Qg8 Kc7 68.Qg7 Qd7 69.Qd7 Kd7 70.Rf7 Ke8 71.Rb7 c5 72.Rh8#). Pohl – Betzelt, corr ICCF TT–4–90 SF, 1995.

11.d4 Rad8 12.Bd3 Bd3 13.Qd3 Re6 (13...Qe6 14.Ba3+=) 14.Nbd2 (14.a3 Ba5=) 14...Bd2 15.Qd2 Rg6 (15...Rde8 16.Rfc1=) 16.g3 (16.Rab1 Qe6=) 16...Rh6 (16...Qe6 17.Ne5 Ne5 18.de5+=) 17.Nh4 (17.e4!? Nf6 18.Rfe1=) 17...Qe6+= 18.Qd3?? (18.Rfe1 Nf6+=) 18...Qh3 (better is 18...Rh4 19.f3 Rh6–+) 19.Qe4 (19.Rfd1 Nf6 20.Qe2 Qe6=) 19...Nf6 20.Qg2 Qg2 (20...Qe6 21.Nf3+=) 21.Kg2= Rd5 22.Rac1 Ng4 (better is 22...g5!? 23.Nf3 Ne4=) 23.e4+= Rd7 (23...Ra5!? 24.h3 Ra2 25.hg4 Rb2+/–) 24.h3 Nf6 25.d5 (25.Nf5 Rg6+/–) 25...Nb4 (25...Ne7 26.Rfe1+/–) 26.Rc4 (26.Nf5 Rg6 27.d6 Nc6+/–) 26...Nd3 27.Bc3 c5 (better is 27...Kf8!?+/–) 28.dc6+– bc6 29.Rc6 Rd8 (29...Ne8 30.Rh6 gh6 31.Nf5+–) 30.Nf5 Rg6 (30...Ne4 31.Ne7 Kf8 32.Bg7 Ke7 33.Rh6+–) 31.Ne7 Kh8 (31...Kf8 32.Ng6 hg6 33.Bf6 gf6+–) 32.Ng6 hg6 33.Bf6 (33.Bf6 gf6 34.Rc7+–) 1–0. Suslov,Konstantin – Pudjakov,Jaroslav, 2010.

11.d4 Qe6 12.a3 Bd6 13.Bb5 Qg6 14.Bc6 bc6 15.Nh4 Qh6 16.g3 Be4 17.Nd2 Rab8 18.Ne4= Re4 19.Bc1 Rh4 20.gh4+= Qh4 21.f4 Qf6 22.Kh1 Bc5 23.Qd3+/– Re8 24.Bd2 Bd6 25.Rae1 Qh6 26.Rf3 Rb8 27.Ref1 Rb2 28.e4 Nb6 29.R1f2 Ra2 30.Bc1 Rf2 31.Rf2 Qe6 32.f5+– Qd7 33.Rd2 Be7 34.Qc3 Bf8 35.f6 g6 36.Qf3 Nc4 37.Rd3 Qe6 38.Rc3 Nb6 39.Rc2 c5 40.d5 Qd6 41.Be3 Nd7 42.Rf2 c6 43.Bf4 Qf6 44.e5 Qf5 45.dc6+– Nb6 46.c7 Qd7+/– 47.Qb7 c4 48.Qa7 Bc5 49.Qb8 Nc8 50.Rd2 Qc6+= 51.Rg2 Qd7 Black gets strong initiative 52.h4 Bb6 53.h5 c3 54.Qb7 c2 55.Kh2 Qf5 56.Rg3 Qh5 57.Kg2 Qe2 58.Kh3 Qf1 59.Rg2 Kg7–+ 60.Qc6 Qf4 61.Qf6 Qf6 62.ef6 Kf6 63.Rc2 Ke7 64.Kg4 f6 (64...f6 65.Rc6 f5 66.Kf3 Kd7–+; 64...h5 65.Kg5–+) 0–1. Dopper,Johan – Elich,CF, corr NED H384, 1993.

11.d4 Qe6 12.a3 Bd6 13.Nc3 =+.

11.a3 Ba5

12.Qb3 a6 13.Nc3 (13.Qb7?? Reb8 14.Ba6 Rb7 15.Bb7 Rb8 16.Bc6 Rb2 17.Bd5 Qd5–+) 13...Nb6 14.d4 Be6 (14...Rad8 15.Rfd1=) 15.Qc2 Bc4 16.Bc4 (16.Rfc1 Rad8=) 16...Nc4 17.Ne4 (17.Rfc1 b5=) 17...Qg6 18.Nf6 Qf6 19.Qc4 Rad8 20.Qc2 (20.Qb3 Qe6 21.Qe6 Re6=) 20...Ne7 (20...Qe7 21.Qb3 Qe4 22.Rfc1= (< 22.Qb7 Rb8 23.Qa6 Rb2–/+)) 21.Rab1 Nd5 22.Ne5 Bb6 23.a4 (23.Rfd1 Qg5=) 23...Qe6 24.Ba3 (24.Rfc1 f6 25.Nc4 Rd7=) 24...f6+= 25.Nd3 (25.Nc4 a5+=) 25...Qe4 26.Rfc1 Re6 27.Qb3 a5 28.Bc5 Kh8 (28...Rd7 29.Qc2 Rc6 30.Qc4+=) 29.h3 (29.Qd1 Rc6+=) 29...Qg6 (29...Kg8 30.Qd1+=) 30.Qa3 Rc6 31.Rb5 (31.Bb6 cb6 32.Qb3 Qe4+=) 31...Qe4 (31...Qf5 32.Bb6 cb6 33.Qb3+=) 32.Qb3 h6 33.Re1 (33.Rc2 Rc8+=) 33...Rd7 (33...Kh7 34.Bb6 Rc3 35.Qb2 Rd3 36.Ba5+/–) 34.Kh2 (34.Bb6 Rc3 35.Qb2 Rd3 36.Ba5 b6+/–) 34...Rd8 35.f3 Qg6 36.Bb6 (36.e4 Bc5 37.dc5 Nb4 38.Nb4 ab4 39.Rb7 Rc5+/–) 36...Rb6 37.Nc5 (37.Rb6 Nb6 38.Rc1 Qg5+/–) 37...Rb5+= 38.Qb5 Re8 39.e4 (39.Qb7?! Ne3 40.Rg1 Qf7=) 39...b6 40.Nd3 Nb4 41.Nb4 ab4 42.Qb4 Rd8 43.d5 Qe8 44.Qc3 Rd7 45.Qc6 (45.Rd1 Qa8+/–) 45...Qe5 46.Kh1 Re7 47.Rd1 Re8 (47...f5 48.d6 cd6 49.Qc8 (49.Rd6?! fe4 50.fe4 Qe4=) 49...Kh7 50.Qf5 (< 50.ef5 Qg3+/–) 50...Qf5 51.ef5+–) 48.d6 (48.Rc1 Re7+/–) 48...cd6+/– 49.Qd6 (49.Rd5 Qa1 50.Kh2 Rb8+/–) 49...Qd6 (49...Ra8 50.Qc6 Ra5 51.Rd5 Rd5 52.Qd5 (52.ed5?! Qe1 53.Kh2 Qe5 54.f4 Qf4 55.Kg1 Qe3 56.Kf1 Qf4 57.Ke2 Qe4 58.Kf2 Qf4 59.Ke1 Qe3 60.Kf1 Qf4 61.Ke2 Qe4 62.Kf2 Qf4 63.Ke2=) 52...Qa1 53.Kh2 Qa4 54.Qd8 Kh7 55.Qb6+/–) 50.Rd6 Ra8 51.Rd4 g5 (51...Kg8 52.f4+/–) 52.h4 (52.g3 Kg7+–) 52...h5 (52...Ra5 53.h5+/–) 53.hg5+– fg5 54.Rb4 (54.Rd5 g4+–) 54...Kg7+/– 55.Kh2 Kf7 56.Kh3 Ra6 (56...Ra5 57.Rb6 Ra4 58.Rh6 g4 59.Kh4 gf3 60.gf3+–) 57.g3 Ke6 58.f4 Kf6 59.Kg2 (59.f5 Ke5+–) 59...gf4 (59...g4 60.e5 Kf5 61.Kf2+–) 60.gf4 Ke7 (60...Ke6 61.e5+–) 61.Kg3 Kd6 62.Rc4 Ra8 63.Kh4 Rh8 (63...Rf8 64.f5 Rh8 65.Rb4+–) 64.e5 Ke6 65.Rc6 (65...Kf5 66.Rf6 Ke4 67.e6+–) 1–0. Mehlhorn,U – Nitschke,N, BFO–072, 2000.

12.Qb3 Rad8

13.Qb7? Rb8 14.Qa6 Rb6 –+.

13.Qb7? Rb8 14.Be5 Rb7 15.Bd6 cd6–+.

13.Rc1 Bb6 14.Nc3 Na5 ½–½. Bonetti,Shane – KingArthur (2005), ICC, 2002.

13.Rc1 Bb6 14.Nc3 Nc3 15.Bc3 Be4 16.a4 Na5 17.Ba5 Ba5 18.d4 Re7 19.Ng5 Bd5 20.Qc2 g6 21.Bf3 c6 22.Bd5 Qd5 23.Nf3 Qe6 24.Rab1 Bc7 25.h3 Rb8 26.Rb3 a6 27.Rcb1 Bd6 28.e4 Qe4 29.Qe4 Re4 30.Rb7 Ree8 31.g4 a5 32.g5 Red8 33.Kf1 Rb7 34.Rb7 c5 35.Rb5 cd4 36.Nd4 ½–½. Woelfelschneider – Ster, 1999.

13.Nc3 Nc3 14.Bc3 Bb6 15.Bc4 Bg6 16.d4 Bh5 17.Rfc1 Rd7 18.Nd2 Na5 19.Qb5 Nc4 20.Nc4 Qd5 21.a4 Rdd8? 22.Qd5+– Rd5 23.a5 Be2 24.ab6 Bc4 25.ba7 Ra8 26.Bb4 b5 27.f3 f5 28.Bc5 Kf7 29.e4 fe4 30.fe4 Rd7 31.Kf2 Ke6 32.Ra6 Kf7 33.Ke3 Ke8 34.d5 Kd8 35.Rca1 b4 36.R6a4 c6 37.Rb4 Bb5 38.Kd4 Kc7 39.Ra3 Bf1 40.d6 Kc8 41.e5 Bg2 42.e6 Rb7 43.Rb7 Kb7 44.Rb3 Ka6 45.d7 Rd8 46.Rb8 Rd7 47.ed7 Be4 48.a8Q 1–0. Fritz 8 – Fritz 5.32, 2004.

13.d4 Re6 14.Qb7? Rb8 15.Qa6 Rb2 –+.

13.d4 Re6 14.Bc4 Be4 (better is 14...a6!?=) 15.Ng5+= (15.Qb7 Bf3 16.gf3 Rh6–+) 15...Rh6 16.f4 Qg6 17.Ne4 Qe4 Exerts pressure on the backward pawn 18.Rf3 Rg6 19.Kh1 (19.Qb7?? Qf3 20.g3 Be1 21.Bc1 Bf2 22.Kf1 Bg3 23.Kg1 Bf4) 19…Rh6 ½–½. Wantoch_Rekowski,Jacek (2285) – Lisov,SV, WS/M/065 ICCF, 2006.

13.d4 Be6 14.Qb7? Rb8 15.Qa6 Bc8 –+.

13.d4 Be6 14.Qd3 =+.

13.d4 Bg6 14.Nfd2 Bb6 15.Nc4 Qe6 16.Bf3 Be4 17.Nbd2 Bf3 18.Nf3 Nf6 19.Qc2 Ne4 20.Rab1 f6 21.Rfc1 Re7 22.a4 Qd5 23.Ba3+= Ree8 24.Nfd2 Nd2 25.Qd2 Qe4 26.Nb6 ab6 27.a5 Na5 28.Qa2+/– Kh8 29.Qc2 Qc2 30.Rc2 Re6?? (Better is 30...Nc6=+) ½–½. Wilde,Gert – Suess,Robert (2140), M–1620 E BdF, 1997.

10.0–0 Bd6

11.a3 Qe7 12.Qb3 Nb6 13.d4 a5 14.Nc3 a4 15.Qd1 Bd7 16.Nb5 Na5 17.Nd6 Qd6 18.Bc3 Nd5 19.Ba5+= Ra5 20.Qd2 b6 21.Ne5 Bb5 22.Nc4 Bc4 23.Bc4 Nf6 24.Qb4 c5 25.dc5 Qc5 26.Rac1 Qe5?? 27.Qb6 Rc5?? 28.Qc5! (28.Qc5 Qc5 29.Bf7 Kf7 30.Rc5+–) 1–0. Mielke,Sven – Lindner,Ulrich, Berlin Kreuzberg op, 2000.

11.Nc3 Ndb4 12.d4 Ne7?? 13.a3?? Nbd5= 14.Qb3 Nc3 15.Bc3 Be4 16.Ng5 Bd5 17.Bc4 Bc4 18.Qc4 Rf8 19.f4 h6 20.Ne4 Nf5 21.Rf3 Re8 22.d5 Bf8 23.Rh3 Qe7 24.Be5 Rac8 25.Qd3 Nd6 26.Ng5 f5= 27.Ne6 Ne4 28.Qd4 c5 29.Qc4 Nd6 30.Qc2 Ne4= 31.Qc4 Qf7 32.Rd1 Nd6 33.Bd6 Bd6 34.Rf1 Qf6 35.a4 Re7 36.Rg3 b6 37.h3 Rce8 38.Rd1 Kh8 39.Kf2 Kh7 40.Kf3 Rf7 41.Rh1 g6 42.h4 White gets deadly initiative 42...Re6 43.de6 Re7 44.h5 g5 45.Rd1 g4 46.Kf2+/– Re6 47.Qc2 Kg7 48.Rd5 Re4 49.Rg4! Kf8 50.Rg3 (50.Rg3 Be7 51.Qd1+–) 1–0. Borrmann,Fritz – Zimmermann, corr, 1986.

11.Nc3 Be6 12.Ne4 =.

11.d4 Rc8 12.Na3 Ba3 13.Ba3 Nc3 14.Qd2 Ne2 15.Qe2 Nd4! 16.Nd4 Qd4! 17.Rac1 Qe4 18.Rfe1 Be6 19.f3 Qa4 20.Bb2 Ba2 21.Ra1 Qb3 22.Qf2 Re6 23.Bg7= Kg7 24.Ra2 Qb6 25.Rb2 Qc6 26.Qh4 a6 27.Rbb1 Rg6 28.Qh3 Rb8 29.Rbc1 Qd6 30.Red1 Qe7 31.e4 Rd8 32.Rd8 Qd8 33.g3 c5 34.Qf1 b5 35.Rc5=+ Qd4 36.Qf2 Qf2 37.Kf2 b4 38.Rc2 Rb6 39.Rb2 a5–+ 40.Ke3 a4 (40...a4 41.Kd3 a3–+) 0–1. Kozlowski (2000) – Kuperski (1800), corr 1. AMM Poland, 1992.

11.Nc3 Nc3

12.Bc3 a6 13.a4 Rb8 14.d4 b5 15.ab5 ab5 16.Bd3 Bg6 17.Bg6+= hg6 18.Rb1 b4= 19.Bb2 Na5 20.Qd3 Qd7 21.Rfc1 Qf5 22.Qf5 gf5=+ 23.g3 Rb5 24.Ne5? Be5–/+ 25.de5 c5 26.f4 Nb3 27.Rc2 Rd8 28.Kf2 ½–½. Fengsrud,Roy – Daconto,Ricardo, corr 3GMM–08, 1997.

12.Bc3 a6 13.Qb3 b5 14.Rfc1 Re6 15.a4 b4 16.Bd4 Be4 (16...Nd4 17.Nd4 Qf6 18.Ne6 Be6 19.Bc4+/–) 17.Bc5 Bd5 18.Qb2 Na5 19.Bd6 (worse is 19.Bb4 Rb8 20.Bd6 Rb2 21.Bc7 Qd7 22.Ba5 Rg6–/+) 19...Qd6 20.Rab1 c5 21.d4 cd4 22.Nd4 (22.Qd4? Nb3 23.Rb3 Bb3–+; worse is 22.ed4 Rae8 23.Ne5 f6–/+) 22...Rh6 23.h3 Rg6 24.f3 (worse is 24.Qb4 Rg2 25.Kf1 Qh2–/+) 24...b3 25.Qc3 Qd8 26.Bd3 Rf6 27.e4 Be6 28.e5 Rh6 29.f4 Rb8 30.Kh2 Bd5 31.Rb2 g6 (better is 31...Kh8!?=) 32.Ba6+/– g5 33.Bb5 gf4 34.Rd1 Rc8 35.Qd2 Qg5 36.Nf5 (36.Qa5? Rc2 37.Qd8 Qd8 38.Nc2 Qc7–+) 36...Qf5 37.Qd5 ½–½. Fernandez Fornes – Rey Saravia, ARG–Cup2 corr, 1993.

12.Bc3 Nb4 13.Qb3= Nd5 14.Bb2 c5 15.d4+= Bg4? 16.dc5+– Bb8 17.Rfd1 Bh2 18.Nh2 Be2 19.Rd5 Qh4 20.Rd7 Re6 21.Rb7 Rae8 22.Rb8 h5 23.Re8 Re8 24.Re1 Ba6 25.Qc3 f6 26.c6 Re4 27.Nf3 Qg4 28.Nd2 Re5 29.Qb3 Re6 30.f3 Qf5 31.Rc1 Bc8 32.Bd4 (32.Bd4 Qa5 33.Ne4+–; better is 32.Ne4!? Kh8 33.Qb8 Re8+–) 1–0. Bulcourf,Carlos – Lida Garcia,F, Buenos Aires, 1980.

12.Bc3 Nb4 13.Nd4 Be4 14.Bf3 Bd3 15.Be2 c5 16.Bd3 Nd3=+ 17.Nf3 b5 18.a3 a5 19.Qc2 b4 20.ab4= ab4 21.Ra8+/– Qa8 22.Qd3 bc3?? 23.Qd6+– c2 24.Qd3 Qa4 25.Rc1 Rb8 26.g3 (26.g3 Qa8 27.Ne5+–) 1–0. Hasse,Peter – Schmidtke,Wilfried (1650), Germany, 2006.

12.Bc3 Ne5 13.Nd4 Be4 14.d3 Bd5 15.e4 c5 16.Nf5+/– Be6 17.f4 Ng6 18.Nd6+– Qd6 19.f5 Nh4 20.fe6 Re6 21.Qe1 (21...Qe7 22.Rd1+–) 1–0. Poenisch,Eckehard (2225) – Dietze,Frank (2205), Oberliga Ost–A, 2003.

12.Bc3 Qe7 13.d4 =.

10.0–0 Qd7

11.a3 Bd6 12.Nc3 Qe6 13.Qb3 Nc3 14.Qc3 Qh6 15.d4 Be4 16.h3 Qg6 17.Nh4 Qf6 18.Nf3 Rad8 19.Nd2 Bf5 20.Bf3 Qg5 21.Qb3 Rb8 22.Bd5 Nd8 23.Nf3 Qh5 24.e4 Bg6 25.e5 Bf8 26.Rfe1 c6 27.Bc4 Ne6 28.a4 b6 29.Bf1 Ng5 30.Ng5 Qg5 31.Rac1 Re6 32.Bc4 Re7 33.e6 b5 34.ab5 cb5 35.Re5 Qf4 36.Rb5 Rb5 37.ef7 Bf7 38.Qb5 Qd2 39.Bf7 Rf7 40.f3 Qb4 41.Qb4 Bb4 42.Kf2 Rb7 43.Ke3 h5 44.d5 Re7 45.Kd3 a6 46.g4 Rd7 47.Rc8 Kf7 48.Kc4 a5 49.Be5 hg4 50.hg4 g5 51.Bc7 Ke7 52.Bb6 Bd2 53.Ra8 Kd6 54.Bc5 Kc7 55.d6 Kc6 56.Ra6 Kb7 57.Kb5 Bf4 58.Ra7 Kc8 59.Kc6 Ra7 60.Ba7 (60.Ba7 Bd6 61.Kd6+–) 1–0. Alvarez Villar (2275) – Pintonello, IECG, 2004.

11.a3 Bd6 12.d3 Qe6 13.Re1 Qg6 14.Qb3 Nb6 15.Nbd2 Rad8 16.Nh4 Qh6 17.Nhf3 (17.Nf5?? Qh2 18.Kf1 Qh1) 17...Bg4 18.d4 Qh5 19.h3 Be6 20.Qc2 Ne7 21.e4 (21.Ne4 Bf5=) 21...Ng6 (21...c6 22.a4=) 22.Ne5 (22.d5 Bc8 23.Nd4 Qe5=) 22...Qh6 (22...Qg5 23.Ndf3 Qh6 24.Nd3=) 23.Ng4 Qg5 (23...Bg4 24.Bg4 c6 25.Bc1+=) 24.d5 Bg4 25.Bg4 Ne5 26.Be5 Qe5 (< 26...Re5 27.Nf3 Qf6 28.a4+/–) 27.Nf3 ½–½. marekt – aspasiochess, ChessWorld.net, 2004.

11.a3 Bd6 12.d4 Rad8 13.Nh4 Be6 14.Bd3 Nce7 15.Qc2 Bh3 (15...f5 16.Rc1=) 16.Nc3 (worse is 16.gh3 Qh3 17.Bh7 Kf8–+; 16.Bh7?! Kh8 17.Nc3 Qg4+=) 16...Nc3 17.Bc3 (worse is 17.Qc3 Qg4 18.d5 Nd5 19.Qg7 Qg7 20.Bg7 Kg7 21.gh3 Kf6–/+; 17.Bh7?! Kf8 18.Bc3 g6=) 17...Qg4 18.Bh7 Kf8 19.Be4 Qh4 20.gh3 Qh3 21.f3 c6 22.Rf2 Nd5 23.Bd2 Re7 24.Rb1 g6 25.Rg2 Rde8 26.a4 Kg7 27.a5 Rh8 28.a6 Bh2 29.Kf2 b6 30.Ra1 (better is 30.Qc6!? Nf6 31.Bd3+=) 30...Re6–/+ 31.Rc1 Rh5 32.Bd5 cd5 33.Qd1 b5 34.Rc5 Ra6 35.Rb5 Rf5 36.Ra5 Rb6 37.Bc1 Qh4 38.Ke2 Rf3! 39.Qc2 Qh3 40.Kd3 Bf4 41.Re2 Qe6 42.Rc5 Rb1! 43.Rc6 Qe4 (43...Qe4 44.Kc3 Rc1 45.Qc1 Be3–+) 0–1. Van Daatselaar,Jan Bart (2185) – Van der Houwen,Piet J (2350), KE05 NBC Email, 2003.

11.a3 Bf8 12.d4 a5 13.Bb5 Rad8 14.Nbd2 Qc8 15.Nc4 Qa8 16.Qd2 Nb6 17.Nb6 cb6 18.Rfc1 Be4 19.Ng5 Rd5 20.Ne4 Rb5 21.Nc3 Rh5 22.Qe2 g6 23.Qf3 Qb8 24.g3 Bg7 25.Na4 Qd8 26.Rcb1 Bf8 27.Rd1 b5 28.Nc5 Qe7 29.Rac1 Rc8 30.e4 Bg7 31.e5 Rf5 32.Qe3 f6 33.f4 fe5 34.de5 Rd8 35.Qb3 Kh8 36.Qb5 g5 37.Nb7 Rd1?! 38.Rd1 Nb8 39.Rd8 Rf8 40.Rf8 Qf8 41.Nd6 gf4 42.gf4 h6 43.f5 Kh7 44.f6 Bf6 45.Qd3 Kg8 46.ef6 Qd8 47.Qg6 (47.Qg6 Kf8 48.Qg7) 1–0. Ramos Moreno,F (2130) – Gavilan Diaz,M (2275), XIII Open, Malaga ESP, 2010.

11.Bb5 Bd6 12.d3 Bg4=+ 13.Nbd2 a6 14.Bc6 Qc6 15.h3 Bh5 16.Qb3 Qb5 17.Rfc1 Qb3 18.ab3 Nb4 19.Ne1 c6 20.Ne4 Bf8 21.Nc5 Bc5 22.Rc5 Bg6 23.Rc3 Nd5 24.Rc4 f6 25.Kf1 Nc7 26.Rcc1 Rad8 27.e4 (27.Ke2 Bf7 28.b4 Ne6=) ½–½. Dopper,Johan – Hofland,Leo, KE03, 2001.

11.Bb5 Bg4 12.d4 Bd6 13.Nc3 Qf5 14.Nd5 Qd5 15.a4 a6 16.Bc6 Qc6 17.d5 Qd7 18.h3 Bh5 19.a5 f6 20.Bc3 b5 21.Re1 Rad8 22.e4 c5 23.Qe2 Qc7 24.Rac1 c4 25.Qb2 Bf3 26.gf3 Qf7 27.Qd2 Rc8 28.Bb4 Qg6–+ 29.Kh1 Bb4 30.Qb4 Qh5 31.Kg2 Qg5 32.Kh1 Qh5 33.Kg2 Qg5 34.Kh1 Qh4 35.Kg2 f5 36.Qb1 Qg5 37.Kh1 Qf4 38.Re3 fe4 39.Rce1 Re5 40.fe4 Qf2 41.Qa1 Rg5 42.R1e2 Qf4 43.e5? c3! 44.Qc1 Re5! 45.d6 Re3 46.Re3 Qd6 47.Re2 b4 48.Rg2 b3 (48...b3 49.Qg5 Qd7–+; 48...c2 49.Rc2 Qd5 50.Kg1 Qd4 51.Kh2 Qe5 52.Kg1 Qg3 53.Kh1 Qh3 54.Kg1 Qg4 55.Kh2 Qh5 56.Kg1 Qg6 57.Kh2 Rc2 58.Qc2 Qc2 59.Kg3–+) 0–1. Pierred (2275) – Finfin (1795), Rated game, 3m + 0s, 2005.

11.d3 Rad8 12.e4? Nf4–/+ 13.Nc3?? Bg4 14.Ne1 Ne2 15.Ne2–/+ Be2 16.Qe2=+ Be1 17.Rfe1 Qd3 18.Qd3 Rd3–/+ 19.f3 Red8 20.Kf1 f6 21.Bc1 Kf7 22.Bf4–/+ Ne5 23.Rac1 R8d7 24.Ke2 Ra3–+ 25.Rc2 Nd3 (25...Nd3 26.Bc7 Ne1 27.Ke1 Ke6–+) 0–1. hal1958 – Goofy_99, playchess.de, 2002.

11.d3 Qe6 12.a3 Bd6 13.Re1 Qg6 14.Qb3 Bh3 15.Bf1 Nb6 16.Qc2 Rad8 17.Nbd2 Bf5 18.Nh4 Qh5=+ 19.Nhf3 Bg4 20.Rab1 Re7 21.d4 Rde8 22.Bd3 f6 23.e4+= Bf4 24.h3 Bd7 25.d5 Nd8 26.Bd4+= Nf7 27.Rbc1 Ng5 28.Be3 Nf3 29.Nf3 Bd6 30.Qe2 c6 31.dc6 Bc6 32.Rcd1 Kh8 33.Qd2 Ba3 34.Ra1= Bc5 35.Bc5 Qc5 36.Ra5 Qd6 37.Ra7 Rd8 38.Re3 f5 39.ef5 Nc8 40.Re7 Qe7 41.Ra2 Bf3 42.gf3 Nb6 43.Ra7 Rd7 44.Qe2 Qg5 45.Kh1 Qd8 46.Bc2 Rc7 47.Qd3 Qc8 48.Qd4 Nd7 49.Be4 Nc5 50.Qa1 Na6 51.Qe5 h6 52.Kh2 Nc5 53.f6 Rf7 54.Ra5 Ne4+= 55.fg7 Kg8 56.fe4 Rf2 57.Kg3 Rf7 58.Rc5 Qd8 59.Rd5 Qb6 60.Rd4 Qg6 61.Kh4 Qg7 62.Rd5 Qf8 63.Kh5 Rg7 64.Qe6 Kh8 65.Rf5 Qd8 66.h4 Qd1–/+ 67.Kh6 Rh7 68.Kg5 Qg1 69.Kf4 Rh4 70.Ke5 Qh2 71.Kd5 Qd2 72.Kc5 Qa5 73.Kd6 Qd8 74.Ke5= Qa5 75.Qd5 Qa8 76.Qd4 Qe8 77.Kd5 Kh7= 78.Qe5 Qc6 79.Kd4 Qa4 80.Ke3 Qb3 81.Kd2 Qa2 82.Kc3 Rh3 83.Kd4 Qd2 84.Kc5 Rc3 85.Kb6 Rc6 86.Ka7 Qa2 87.Qa5 Ra6 88.Qa6 Qa6 89.Kb8 Qg6 90.Kb7 Kg7 91.Re5 Kf6 92.Rf5 Ke7 93.Ka7 Kd7 94.Rc5 Qe4 95.Ka6 Kd6 96.Rc8 Qb1 97.Ka7 Qb4 98.Rb8 Qd4 99.Ka8 Qd5 100.Rb7 Kc6 101.Ka7 Qd8 102.Rf7 Qd4 103.Ka8 Kb6 104.Rb7 Ka6 105.Rb6 Kb6 106.Kb8 Qh8# 0–1. Pierred (2195) – Misanthropos (2505), Rated game, 5m + 0s, 2005.

11.d4 Rad8 12.a3 Ba5 13.Nbd2 (13.Qb3 Be6=) 13...Nf6 (13...Nc3!? 14.Bc3 Bc3=) 14.Nc4= Bb6 15.Nb6 ab6 16.Rc1 Ne4 17.Nd2 Ne7 (17...Nc5 18.Ba1=) 18.Ne4 Be4 19.Bf3 (19.f3!? Bc6 20.e4+=) 19...Nd5= 20.Be4 Re4 21.Qf3 Nf6 (21...Qe6 22.Bc3=) 22.Rfd1 (22.d5 Ra4 23.Bf6 gf6 24.Qg3 Kf8+/–) 22...c6? (better is 22...Rde8=) 23.d5+/– Qg4?? (better is 23...cd5 24.Bf6 gf6 25.Qf6 Qd6 26.Qg5 Kh8+/–) 24.Qg4 Rg4 (24...Ng4 25.dc6 Rf8 26.cb7 Ree8+–) 25.dc6 Rd1 26.Rd1 (26.Rd1 h6 27.cb7+–) 1–0. Dietrich,Mareike – Walter,Andreas (1605), GER–ch Net Qual1 U18, 2011.

11.d4 Rad8 12.a3 Bd6 13.Nbd2 Qe6 14.Bc4 Na5 15.Ba2 c6 16.Bc3 Nc3 17.Be6 Nd1 18.Bf5 Nc3 19.Bd3 c5 20.Rfc1 cd4 21.Nd4 Rc8 22.Nc4 Nc4 23.Rc3 Ne5 ½–½. Boehnke,Hartmut (1985) – Bergmann,Michael (2200), GER–ch37 V8 email, 2005.

10.0–0 Re6

11.Qb3 Rg6 12.Nc3 Nc3 (12...Nb6 13.d4=) 13.Bc3 Bc3 14.Qc3 Qe7 15.d4 Be4 16.Qc5 Qf6 17.Qh5 Rd8 18.h3?? (better is 18.Rfc1=) 18...Rd5–+ 19.Qh4 Rg2! 20.Kg2?? (20.Kh1 Qh4 21.Nh4 Rf2 22.Bf3 Bf3 23.Nf3–+) 20…Qh4 (20...Qh4 21.Kh2 Qf6–+) 0–1. Rush,Bradley – Ould Ahmed,Samy (2130), CP–2011–P–00011, 2011.

11.Nc3 Nc3 12.dc3 Bc5 13.Qb3 =.

11.Nc3 Rd6 12.a3?? (better is 12.Nd5 Rd5 13.d4=) 12...Nc3–+ (12...Nc3 13.Bc3 Bc3–+) 0–1. forsetinn (2215) – marekt (2055), gameknot.com, 2014.

11.d4 Qe7 12.Bc4 Be4 13.Nbd2 Na5 14.Ne4 Nc4 15.Qb3 Nb2 16.Qd5 Re4 17.Qb7 Re8 18.Ne5 Re5 19.de5 a5 20.a3 Bc3 21.Rab1 Qa3 22.Qc6 Re5 23.Rfd1 Nd1 24.Rb8 Qf8 25.Rf8 Kf8 26.Qd7 Ne3 27.fe3 Re3 28.Qc7 Bb4 29.Kf2 Re8 30.Qc6 h6 31.Kf3 f6 32.Kg4 Re5 33.h4 Be1 34.Qd6 Kg8 35.g3 Re3 36.Qb8 Kh7 37.Qb1 g6 38.h5 f5 39.Kh3 Re7 40.hg6 Kg6 41.g4 Bb4 42.Qf5 Kg7 43.Kh4 Rf7 44.Qe5 Rf6 45.Qd5 Rd6 46.Qe4 Kf7 47.Qh7 Ke8 48.Qg7 Rd8 49.Qb7 Bc3 ½–½. Kohlmann – Wegelin, corr CIF 1985.

11.d4 Rh6 12.a3 Bd6 (12...Ba5 13.Bd3 Bg6 14.e4=) 13.Nbd2 Qe7 14.Qb3 Rd8 15.Rac1 (15.g3 Nb6 16.d5=) 15...Bc8 (15...Na5!? 16.Qa4 b6=) 16.Rfe1 (16.g3 Nb6 17.e4 Qe8+=) 16...g5 (16...Na5 17.Qb5 Nc6 18.Qd3=) 17.e4 Nf4 18.d5 (better is 18.Bf1 g4 19.e5 gf3 20.ed6 Qd6 21.Nf3+=) 18...g4 '?' (better is 18...Ne5 19.Bf1 Nf3 20.Nf3 g4+=) 19.dc6 '+–' 19...gf3 20.Nf3 Rg6 (20...b6 21.Bc4 Be6 22.Qc3+–) 21.cb7 (better is 21.Qc3 Rg2 22.Kh1+–) 21...Rg2 '?' (better is 21...Bb7 22.Qc3 Rg2 23.Kh1 f6 24.Qb3 Kf8 25.Qb7 Rf2+–) 22.Kh1 Bb7 23.Qb7 Rf2 24.Rg1 Ng6 25.Rc2 Bf4 (25...Bc5 26.Rg3+–) 26.e5 Bh2 27.Nh2 (27.Rc7 Qe6 28.Rd1 Rd1 29.Bd1 Bf4 30.Qc8 Nf8=) 27...Rh2 28.Kh2 Qh4 29.Kg2 Qg5 30.Bg4 Qg4 31.Kh1 Qf5 32.Rh2 a5 (32...Qd7 33.Qf3 Qe6 34.Rd1+–) 33.Qc6 Rb8 (33...Qd7 34.Qd7 Rd7+–) 34.e6 fe6 (34...Rb2 35.ef7 Kf7 36.Rh7 Kg8+–) 35.Rg6 Qg6 36.Rg2 Kf8 37.Rg6 hg6 38.Qe6 Rb2 39.Qf6 Ke8 40.Qb2 Ke7 41.Qe5 Kd7 42.a4 Kd8 43.Qa5 Kd7 44.Qc5 g5 45.Kg2 Kd8 46.a5 Kd7 47.a6 Ke6 48.a7 Kf7 49.Qg5 Ke6 50.a8Q c6 51.Qb7 c5 52.Qbd5# 1–0. Buczinski,Henryk (2135) – Probola,R (2150), corr WTSz/A Poland, 1994.

11.Nd4 Nd4 12.Bd4 Nf4 13.Bg4 Rg6 14.f3 Bd3 15.Re1 h5 16.Bh5?? Rg2 0–1. Hasler – NZZ, 1985.

10.0–0 Qe7

11.a3 Bc5 12.d4.

11.Qb3 Nb6 12.a3 Bd6 13.Qc3 Qf8 14.Bb5 Bd7 15.d3 Ne5 16.Bd7 Nf3 17.gf3 Nd7 18.Kh1 Be5 19.Qc2 Qd6–/+ 20.Rg1 Qf6 21.Be5 Ne5 22.Nd2 Nf3 23.Nf3 Qf3 24.Rg2 Rac8 25.Qb2 g6 26.Kg1 c5 27.Qc1 Qd5 28.Qc4 Red8–+ 29.Qd5 Rd5 30.Rd1 c4 31.d4 b5 32.e4 Rd6 33.f3 Ra6 34.Rb2 Ra3 35.Rb5 Rf3 36.Kg2 Re3 37.e5 Re2 38.Kg3 c3 39.Rc1 c2 40.Ra5 Rc3 41.Kf4 Rh2 42.Ra7 Rh4 43.Kg5 Rd4 44.Kf6 Rc6 45.Kg5 f6 (46.ef6 Rc5 47.Kh6 Rh4) 0–1. hal1958 – x_y_no, HCL–A1325 playchess.de, 2003.

11.Qb3 Nb6 12.a3 Bd6 13.d4 a5 14.Nc3 a4 15.Qd1 Ra5 16.Bb5 Rea8 17.Re1 Bg4 18.h3 Bd7 19.e4 Bf4 20.Qd3 Qf6 21.d5 Ne5= 22.Ne5 Be5 23.Bd7 Nd7 24.Rab1 Nc5 25.Qd2 Bf4 26.Qc2 Qg6 27.Ne2 Bd6 28.Nd4 Re8 29.Bc3 Raa8 30.Nf5 Bf8 31.f3 Nb3+= 32.Kh1 Qg5 33.Qb2 Nc5 34.Red1 c6 35.Qc2 g6 36.Bd2 Qh5 37.Nh6 Bh6+= 38.Bh6 Ne4 39.fe4 Qh6 40.Rb7 cd5 41.Rd5 Qf4 42.Rb4 Rac8 43.Qa4 Rc1 44.Rd1 Rd8 45.Rbd4 Rd4 46.Qd4 Rd1 47.Qd1 Qe4 48.a4 f5 49.a5 Qa8 50.Qb3 Kf8 51.Qb6 Kg8 52.a6+– (52.a6 Kf7 53.Qb7 Qb7 54.ab7+–) 1–0. Brzoza,Miroslaw – Mitrus,Cezary, corr 1. AMM Poland, 1992.

11.Qb3 Be6 12.Qc2 Bd6 13.Nc3 a6 14.d4 Ncb4 15.Qb1 Nc3 16.Bc3 Nd5 17.Bd2 Nb6 (17...Rab8 18.Bd3 h6 19.e4=) 18.Rc1 Bd5 0–1. Engle,Lyle – Menten,Renaud (2000), Champions League, 2007.

11.Qb3 Nf4 12.Bb5 Ng2 13.Kg2 Qe4 14.Qc4?? Bh3!!–+ 15.Kg3 Bd6 16.Be5 Be5 17.Ne5 Qg2 18.Kh4 Ne5 (18...Ne5 19.Qe4 g5 20.Kh5 Qe4 21.Kg5 Nf3 22.Kh5 Qg6#) 0–1. Dziel,Jaromir – Vicanek, corr ICCF WT–M–GT–33, 1994.

11.Bb5 Bd7 12.d4 Rad8 13.a3 Ba5 14.Qb3 Qd6 15.Nc3 Nc3 16.Bc3 Bc3 17.Qc3 Re6 18.Rfc1 Rh6 19.Qc5 Qg6 20.Bf1 Rh5= 21.Qc2 Bf5 22.Qb3 Be4 23.Ne5 Ne5=+ 24.de5 Rg5 25.g3 Rh5 26.Bg2 Bg2–/+ 27.Kg2 Qe4 28.Kg1 Rd7 29.Rd1+/– Rd1 30.Rd1 h6 31.Rd8 Kh7 32.Qd3 Qd3 33.Rd3 Re5 34.Rd7 Rc5 35.Rf7 b5 36.Kf1 a5 37.Ke1 b4 38.ab4 ab4 39.Rf4 Rb5 40.Kd2 Kg6 41.Kc2 Rf5 42.Rb4 Rf2 43.Kd3 Rh2 44.Rc4 Rg2 45.g4 c5! 46.Rf4 Rg3 47.Ke2 Kg5 48.Rc4 Rg4 49.Rc5 Kh4 50.Kf2 g5 51.Rc1 Rg3 52.e4 g4 53.e5 Rf3–+ 54.Ke2 Rf5 55.Rc5? g3 56.Rc4 Kg5 57.e6 g2 58.Rc1 Kg4 59.e7 Re5 60.Kf2 Kh3 61.Rc6? h5–+ 62.Rg6 Rf5 63.Ke2 Re5 64.Kf2 Re7 65.Rg3 Kh4 66.Rg2 Rf7 67.Kg1 Rf4 68.Kh2 Rg4 69.Rc2 Ra4 ½–½. Ewin,Hans Peter (1950) – Rubel,Julian (2125), Rhein Main op, 2007.

11.Bb5 Rad8 12.d4 Rd6 13.Nbd2 Nc3 (13...Rg6!?–/+) 14.Bc3= Bc3 15.Rc1 Bb2 (15...Bd2!? 16.Qd2 Be4=) 16.Bc6 (16.Rc5 Be6+/–) 16...bc6 17.Rc5 Bd3 (17...Rd5!? 18.Rd5 cd5+/–) 18.Re1 Re6? (better is 18...Rdd8 19.Rc6 Rb8+/–) 19.Qb3+– Bd4 20.Nd4 Rg6 (20...Qc5 21.Ne6 Re6 22.Qd3 Rd6+–) 21.Rc6 (21.Qd3?! Qc5 22.g3 h5+–) 21...Rc6 22.Nc6 (22.Qd3?! Rg6+–) 22...Qd7 23.Rc1 Ba6 24.Qc3 (24.Nf3 Be2 25.Nfd4 Bg4+–) 24...Bb7 25.Nd4 Qg4 (25...c5 26.N4b3+–) 26.f3 Qg5 27.Re1 c5 28.Nc2 (28.N4b3 Rc8+–) 28...h5 29.Qc4 (29.Rb1!? Ba6+–) 29...Re6 (29...Rd8 30.Re2+–) 30.Qf4 Qd5 31.Nf1 (31.Nb3 Qe5+–) 31...Rf6 (31...Qd6 32.Qd6 Rd6 33.e4+–) 32.e4 (32.Qb8 Kh7 33.e4 Qa2+–) 32...Qd7 (32...Rf4 33.ed5 Bd5 34.Re8 Kh7+–) 33.Qb8 Kh7 34.Nce3 Rg6 (34...g6 35.Qa7 Rc6 36.Nd5+–) 35.Qe5 (35.Rd1 Qc8 36.Qe5 c4+–) 35...Qh3 (35...h4 36.Rd1 Qe6 37.Qe6 Re6 38.Rd7+–) 36.Qf5 (36.Ng3 Qh4+–) 36...Qh4 (36...Qf5 37.Nf5 Ra6+–) 37.Ng3 Kg8 (37...Qe7 38.Rd1 h4 39.Rd7+–) 38.Qh5 (38.Qc5 Qd8+–) 38...Qf6 (38...Qh5 39.Nh5 Ra6 40.Rb1+–) 39.Qf5 (better is 39.Rb1 Bc8 40.Rb8 Qa1 41.Ngf1 Rc6+–) 39...Qc3 40.Re2 (40.Kf2 Rd6 41.Nh5 Rd2 42.Kg3 Qd4+–) 40...Ba6 (40...Rg3 41.hg3 Ba6 42.Nd5 Qc1 43.Kf2 Be2 44.Ke2 Qb2 45.Ke3 Qc1 46.Kf2+–) 41.Nd5 Qa1 42.Kf2 Qd4 43.Re3 Re6 (43...Rd6 44.Qg4 Qd2 45.Ne2+–) 44.Nf4 (44.Qg5 f6 45.Qg4 Qb2 46.Re2 f5 47.Qf5 Qd4 48.Re3 Re8+–) 44...Rf6 (44...Rb6 45.Nge2 Rb2 46.a3+–) 45.Nfe2 (45.Qg5 Qd2 46.Nfe2 Rb6+–) 45...Qb4 (45...Rf5 46.Nd4 cd4 47.Nf5 de3 48.Ke3+–) 46.Rb3 (better is 46.Qd7 Be2 47.Rb3 Qc4 48.Ne2 Rb6+–) 46...Rf5 47.Rb4 (47.Nf5? Qd2 48.Re3 Qa2–+) 47...Rf6 (47...Rf3 48.gf3 cb4 49.Nf5+–) 48.Rb8 Kh7 49.Ra8 Rc6 (49...Be2 50.Ne2 Ra6 51.Nc1+–) 50.Ra7 1–0. Petukhov,Nikolay (1800) – Pokhlebin,Sergej (2035), Moscow Open E, 2011.

11.Bb5 Bg4 12.h3 Bh5 13.Bc6 bc6 14.d3 Rad8 15.a3 Bc5 16.d4 Bb6 17.g4 Bg6 18.Ne5 Qh4 19.Qf3 Re6 20.Nc3= Rf6 21.Qg2 Re6 22.Rfc1 f6 23.Nc6!+/– Rdd6? 24.Nd5+– Be4 25.Nde7 Kf8 26.Qh2 Re7 27.Ne7 Ke7 28.a4 Qg5 29.a5 Ba5 30.Rc5 (30.Rc5 Qg6 31.Rca5+–) 1–0. Verhaeren,Gertjan – Zaunerciks,Ilmars (1815), internet, 2004.

11.Nc3 Nc3 12.Bc3 a5 13.Qa4 =+.

11.Nc3 Nc3 12.Bc3 Bc3 13.dc3 Rad8 14.Qc1 Be4=+ 15.Nd4 Ne5–/+ 16.f3 Bd3 17.Qd2 Be2 18.Qe2 c5 19.Nc2 Rd7 20.Rfd1 Red8 21.Kf1 b5 22.Ke1? Qh4–+ (22...Qh4 23.g3 Qf6 24.Rd7 Rd7–+) 0–1. Maly,Wolfgang – Mergel,Hans Werner, BdF, 1998.

11.Nc3 Nc3 12.Bc3 Bc3 13.dc3= Be4 14.Qa4 Qf6=+ 15.Rac1 a6 16.Rfd1 b5 17.Qa3 Ne5 18.Ne5 Re5 19.f3 Bb7 20.c4 Rae8 21.e4= Qb6 Black is in command 22.c5 Qc6 23.Rd2 f5=+ 24.Bd3 Qh6 25.Rf2 fe4–/+ 26.fe4 Be4 27.Rcf1 Bd3 28.Qd3 Qe6 29.Qf3 h6 30.Qb7 Rc5–+ 31.Qf3 Re5 32.Qg3 Qb6 33.Qb3 Qe6?? 34.Qg3 Qb6?? 35.Qb3 Kh8 36.Qf7 R5e7 37.Qh5 Rf8 (37...Rf8 38.g3 Ref7–+) 0–1. Larsen,An (1965) – Pedersen,Ch (2360), Politiken Cup, 2005.

11.Nc3 Nc3 12.Bc3 Bc3 13.dc3= Be4 14.Qa4 (14.Qb3 Rad8=) 14...Qf6=+ 15.Rac1 (15.Qb3 Ne5 16.Ne5 Qe5=+) 15...Rad8 16.Rfd1 Qg6 (16...Rd1 17.Qd1 Rd8 18.Qa4=) 17.Ne1 (17.Qb5 a6 18.Rd8 Rd8 (18...ab5?? 19.Re8) 19.Qb7 Nd4 20.Qc7 Ne2 21.Kf1 Re8 22.Ke2 Qg2+=) 17...a6 (17...Rd6 18.Rd6 cd6 19.Rd1=) 18.f3 (18.Bf3 Rd6=+) 18...Bf5 (18...Bd5 19.c4 Be6 20.Rb1=+) 19.Qf4= Rd1 20.Rd1 Qe6 21.e4 Qa2 22.Rd2 Qb1 23.Kf1=+ Be6 24.Qc7 a5 25.Qd6 Qb3 26.Qc5 h6 27.f4 Rc8 28.f5+= Nb4 29.Qd6 Bc4? 30.cb4+– Be2 31.Ke2 a4 32.Nd3 a3 33.Qd5 Qa4 34.e5 Ra8 35.Ra2 Qa7 36.Qc5 b6 37.Qd6 Qb7 38.Ke3 Qc8 39.e6 Kh8 40.b5 Qc4 41.Ra3 Ra3 42.Qa3 fe6 43.Qa8 Kh7 44.Qc6 Qg4 45.fe6 Qg5 46.Nf4 Qh4 47.Qe4 Kg8 48.e7 (48...Qf4 49.Qf4 Kh7 50.Qf5 g6 51.Qf7 Kh8 52.e8Q#) 1–0. Werk,M – Haller,P, Meister B TBB, 1997.

11.Nc3 Nf4 12.Bb5 Nd3 13.Qb3 (13.Qc2 Qd7 14.e4 Be4 15.Ne4 Nb2 16.Neg5+–) 13...Red8 (better is 13...Be6!? 14.Qc2 Nb2 15.Bc6 bc6 16.Qb2 Bg4=) 14.Nd5+= Rd5 (better is 14...Qe4 15.Bc6 bc6 16.Nb4 Qb4 17.Qb4 Nb4=) 15.Qd5–/+ Be4 16.Qg5 (16.Qb3 Na5 17.Qc2 Nb2 18.Qb2 Bf3 19.gf3 Qg5 20.Kh1 Qb5 21.Rg1+=) 16...Nb2–+ 17.Qe7 Ne7 18.d4 c6 19.Be2 Na4 (19...Nd5 20.Ng5 Bf5 21.e4–+) 20.Ng5 Bg6 21.Bc4 (21.Nf3 Nc3 22.Bc4 Bd6–+) 21...Nb6 22.Bb3 a5 (22...Ned5 23.a4–+) 23.Rac1 Ba3 24.Rc3 (24.Rb1 Ra6 (24...Bb1?! 25.Bf7 Kh8 26.Rb1–/+) 25.e4 h6–+) 24...Bb2 (25.Rc2 Bc2 26.Bc2 h6–+) 0–1. Hofmann,Bernhard (2095) – Farago,Ivan (2445), Wattens op, 1997.

11.Nc3 Nf4 12.ef4 Bc3 13.Bc3 Qe2 14.Qb3 Qa6 15.Qd5 Qd3 16.Qd3 Bd3 17.Rfe1 f6 18.Re3 Bc4 19.a3 Kf7 20.Rae1 Red8 21.g4 Rd7 22.Kg2 Rad8 23.Kg3 Ne7 24.Bd4 b6 25.Bc3 c5 26.Rc1 Nd5 27.Ree1 Bb5 28.Bb2 Bd3 29.h4 h5! 30.gh5 Rh8 31.Kg4 Ne7 32.Re3 Bf5 33.Kg3 Be6 34.Ree1 Nf5 35.Kh2 Rh5 36.Bc3 Bd5 37.Ng1 Rh4 38.Nh3 Rd8 39.Rh1 Rdh8 40.f3 Bf3 41.Rhf1 Rh3 42.Kg1 Rh2 43.Rf3 Rh1 44.Kf2 R8h2 0–1. Furseev,E (1710) – Demidov,Vy (2170), XXX Nezhmetdinov Mem, Kazan RUS, 2008.

11.Bc4 Nb6 12.Bb3 Bd3–/+ 13.Re1 Rad8 14.Nc3 Na5 15.Bc2 Nac4 16.Qb1 Qd7 17.a3 Ba5 18.Ne2 Nd2 19.Nd2 Bc2 (19...Bc2 20.Qc2 Qd2–/+) 0–1. Hildingstam,Stefan – Skonieczny,Jerzy, corr or01–012 E–mail, 2001.

11.Bc4 Nb6 12.Be2 Rad8 13.Bb5 Be4 14.Nc3 a6 15.Ne4= ab5 16.Ng3 Qd7 17.d4 Nc4 18.Qc2 Bd6 19.Ng5 =. Lozinski,J – Mitrus,Cezary, corr 1. AMM Poland, 1990.

11.Bc4 Qc5 12.Bd5 (12.d3 Nb6 13.a3 Nc4 14.ab4 Nb2 (< 14...Qb4 15.Bc3 Ne3 16.fe3+=) 15.bc5 Nd1 16.Rd1 b5=+) 12...Qd5–/+ 13.Nh4 (13.d4 Rad8–/+) 13...Bd3 14.Qg4 Bf8 (14...f6 15.Rc1 Re4 16.Qf3–/+) 15.Nc3 (15.Rc1 Rad8–/+) 15...Qa5 16.Rfd1 (16.Rfc1 Ne5 17.Qa4 Qb6–/+) 16...Ne5–+ 17.Qg3 (17.Qh5 Qb4 18.Bc1 g6–/+) 17...Nc4 18.Bc1 Rad8 (18...Qh5 19.Re1–+) 19.Nf3 Bb4 20.Nd4 Bc3 21.Nb3 Qh5 (22.Re1 Be5–+) 0–1. Teillet,Benoit (2205) – Vidonyak,Roman (2450), FRA–chT2, 2002.

11.Bc4 Rad8 12.a3 Bc5 13.d4 Nf6 14.Nbd2 Bd6 15.Re1 Ne4 16.Ne4 Be4 17.d5 Ne5=+ 18.Be2 Nf3–/+ 19.Bf3 Be5 20.Be4+= Bb2 21.Bh7 Kh8 22.Rb1 Bc3 23.Qh5 Qe5 24.Bf5 Kg8 25.Red1 Rd6 26.Qh7 Kf8+– 27.Qh8 Ke7 28.Qh4 Kf8 29.Qh8 Ke7= 30.Qh4 (better is 30.Qh5!? g6 31.Qh4 Qf6 32.Qf6 Bf6 33.Be4+/–) ½–½. Lifshitz,S – Auger,DG, corr BPCF–Israel, 1993.

11.Bc4 Rad8 12.Qb3 Na5 13.Qd1 (13.Bd5 Nb3 14.Bb3 Be4–+) 13...Nc4 14.Bc1 (14.Qb3 Nb2 15.Qb2 Be4–+) 14...Bd3 15.Re1 Bb1 (15...Qf6 16.Nd4–+) 16.Qb3 (16.Rb1 Nc3 17.dc3 Rd1 18.Rd1 Rd8–+) 16...Nd2 (better is 16...Be4!? 17.Qc4 Bf3 18.gf3–+) 17.Bd2 Be4 18.a3 Bd2 (18...Bd6 19.Qb7 Nb6 20.Qa6 Bf3 21.gf3 Bh2 22.Kh2 Rd2 23.Kh3 Qe6 24.Kg2 Qg6 25.Kf1 Qh5 26.Kg2 Qg5 27.Kh3 Re6 28.Qb6 ab6 29.Rad1 Rh6) 19.Nd2 Nb6 20.Ne4 Qe4 21.Rac1 c6 22.f3 Qd3 23.Qd1 (23.Rc3 Qd2 24.Kf1 Re5–+) 23...Re3 24.Rc3 (24.Qd3 Rdd3 25.Re3 Re3 26.Rd1–+) 24...Qd1 25.Rce3 Qd4 26.Kh1 g6 (27.h3 Nd5–+; better is 26...Qe3! 27.Rb1–+ (27.Re3?? Rd1 28.Re1 Re1)) 0–1. Toth,Ervin – Kiss,Lajos, HUN–ch U10 Paks, 2000.

11.Bc4 Rad8 12.d4 Bg4 13.h3 Bh5 14.a3 Ba5 15.Bb5 Qf6 16.Be2 a6 17.Qc2 Bg6 18.Bd3 Bd3 19.Qd3 Nce7 20.Nbd2 Bd2 21.Qd2 Nf5 22.Rac1 Nh4=+ 23.Nh4 Qh4 24.Rc5 c6 25.Qc2 Rd6 26.Bc1 Rg6 27.Qf5 Qe7 28.a4 (28.a4 b6 29.Rc2=+). Milde,Lars (1890) – Zmolil,Josef (1700), TT–12.54 ETC, 2004.

11.Bc4 Be6 12.Bb5 =+.

11.d4 a6 12.a3 White is in command 12...Ba5 13.Qb3= Nf4 14.Bc4 b5 15.ef4 bc4 16.Qc4 Be4 17.Nbd2 Qd6 18.Ne4+= Re4 19.g3 Rb8= 20.Rab1 h6 21.Rfc1 Ne7 22.Ne5+/– Nd5 23.Nc6 Rf4?? 24.Nb8 (24.Nb8 Re4 25.Qa6+–) 1–0. Buczinski,Henryk – Jasak,Janusz, corr Poland, 1993.

11.Re1 Rad8 12.a3 Ba5 13.Qa4 a6 14.Ba6 Nb6–/+ 15.Qf4 Bb1 16.Bb7 Be4 17.Qg4 f6 18.Bc6 Bc6 19.Nd4 Bd5 20.Nf5 Qd7 21.Bf6=+ Rb8?? 22.Bg7+/– Kf7 23.Nh6 Ke7 24.Qg5 Kd6+/– 25.Rec1 c5?? 26.Qg3 Kc6 27.Rc5?? Kc5–+ 28.Rc1 Kb5 29.e4 Be4 30.Qg5 Ka6 31.Rc5 Qd2 32.Qd2 Bd2 33.h4 Re7 34.Bf6 Nd7 35.Be7 Nc5 36.Bc5 Rb5 37.Bf8 Rh5 38.Nf7 Rh4 39.Ne5 Bf4 40.Nd7 Ka5 41.Bb4 Kb5 42.Be7 Rg4 43.g3 Bg3 44.fg3 Rg3 45.Kf2 Rg7 46.a4 Kc6 47.Ne5 Kd5 48.Bf6 Rf7?? 49.Nf7+/– Ke6?? 50.Ng5+– Kf6 51.Ne4 Ke5 52.a5 Kd5 53.a6 Kc6 54.Kg3 Kb6 55.Nc5 Ka7 56.Kh4 Kb6 57.Kh5 Ka7 58.Kh6 Kb6 59.Kh7 Ka7 60.Kg7 Kb6 61.Kf6 Ka7 62.Ke7 Kb6 63.Kd6 Ka7 64.Kc7 Ka8 65.Kb6 Kb8 66.Ne4 Ka8 67.Nd6 Kb8 68.Nb5 Ka8 69.Nc7 Kb8 70.a7 (70.a7 Kc8 71.a8Q Kd7 72.Qe8 Kd6 73.Qe6#) 1–0. Wall,Bill – Mont_Reynaud,Jordy, Mt View CA, 1991.

11.a3 Ba5

12.Qa4!? a6!? 13.Rc1!?

12.Qa4 a6 13.Nd4 Nb6 14.Qb3 Be4 15.Nc6 Qg5 16.f3 Bd5 17.Qc2 Bc6 18.Nc3 Rad8 19.Bc1 Qc5 20.Bb2 Nd5 21.Qf5 Re3 22.de3=+ Qe3 23.Kh1 Bc3 24.Bc3 Nc3 Bc4 Nd5 26.Rfe1 Qc5 27.Rac1 Qa3 28.Rcd1 g6+/– 29.Qg5 Qd6 30.Rd4 b5 31.Bb3 Bb7 32.Red1 c6=+ 33.Rh4 f6 34.Qh6 Qe7 35.Re4 Qa3 36.Rde1 Qf8 37.Qh4 Bc8 38.Re7 h5 39.Qg3 Bf5 40.Qc7 Rc8 41.Qb7 Rc7?? 42.Rc7 Kh8 43.Rh7 Kg8 44.Ree7 (44.Ree7 Qe7 45.Qe7 c5 46.Qg7#) 1–0. Adam,S – Zylla,Johannes, corr SOK–90–54, 1990.

12.Qa4 a6 13.Nd4 Nd4 14.Qd4 Nf6 15.Qf4 Bg6 (15...Qe4 16.Qg3 Qe6 17.d3+=) 16.Qa4= Bb6 17.Nc3 c5 18.Rfd1 Rad8 19.d3 Rd7 20.Rd2 Red8 21.Qc4 Ba5 22.a4 Bf5 23.Rdd1 h6 24.Rac1 Be6 25.Qh4 Bb3 26.Rf1 Bb4 (26...Bc7 27.Rfe1+=) 27.Qg3 Bc3 28.Rc3 Ba4 29.Rc5 Qc5 30.Bf6 Qf8 31.Bd8 Qd8 32.d4 Bc6 33.Rc1 Rd6 (33...a5 34.Bg4 Rd6 35.h3+=) 34.Bf3 (34.Qf4=) 34...Qd7 (34...Rg6 35.Qf4 Rf6 36.Qg4 Bf3 37.Qc8 (worse is 37.gf3 Rg6–+) 37...Qc8 38.Rc8 Kh7 39.gf3+=) 35.h3 (35.d5 Rd5 (35...Bd5? 36.Rd1+–) 36.Bd5 Qd5+=) 35...a5 (35...Bf3 36.Qf3 (36.gf3?? Rg6 37.Qg6 fg6–+) 36...a5 37.Rb1=) 36.Bg4 (36.d5 Rd5 (36...Bd5? 37.Rd1+–) 37.Bd5 Qd5=) 36...Qe7 (36...Qd8 37.Qe5+=) 37.Rc5 (37.Bf3 Bf3 38.Qf3 Qd7=) 37...a4+= 38.Bf3 (38.Ra5 Qd8 39.Ra7 b5+=) 38...Qd7 (38...Qd8 39.Bh5–/+) 39.Bg4 (39.Ra5 b5+=) 39...Qe7 40.Kh2 (40.Bf3!?=) 40...Rd8 41.Bf3 (41.Bd1!?+=) 41...Bf3–/+ 42.Qf3 (42.Rc7 Qf6 43.gf3 b5–+) 42...a3–+ 43.Rc2 b5 44.e4? (44.Qe2 Ra8 45.Ra2–+) 44...b4 45.d5 Qe5 46.g3 Rb8 47.Qb3 Qe4 48.Rd2 (48.Rc1 Qe5 49.Rb1 Rc8–+) 48...Qe1 49.Rc2 Rd8 50.Kg2 (50.Qa2–+) 50...Qe4 51.f3 Qd4 52.g4 (52.Re2 Rd5 53.Rf2 Rc5–+) 52...Rd5 (better is 52...Qd1 53.Qc4 Rd5–+) 53.Rc4 (53.Rf2–+) 53...Qd2 54.Kg3 Qe1 0–1. Hecht,Hans Joachim (2335) – Spornberger,Maximilian (2300), 2nd Bundesliga West, 2014.

12.Qb3 Nb6 13.Nc3 Rad8 14.d4 Be6 15.Qc2 a6 16.Bd3 h6 17.Ne2 Bg4 18.Kh1 Nd5 19.Neg1 Nf6 20.Ba6 ba6 21.Qc6 Rd6 22.Qc2 Ne4 23.Ne5 Bf5 24.Qe2 Rf6 25.f3 Ng5 26.d5 (26.d5 Bb6 27.e4 Bg1 28.Kg1 (28.ef5?! Bc5+/–) 28...Qc5 29.Rf2 Be4 30.Nd7 (30.fe4?! Ne4 31.Nd3 Rf2 32.Nf2 Qd5+–) 30...Nh3 31.gh3 Rg6 32.Kh1+–) 1–0. Adam – Reimann, corr, 1991.

12.Qb3 Nb6 13.d4 Rad8 14.Bc3 =.

12.Qb3 Qd6 13.Bc4 Rad8 14.Nc3 Bc3 15.Bc3 Rd7 16.Qb7+= Nc3 17.dc3 Be4 18.Ng5+/– Bg6 19.Bb5+– Nd8 20.Qf3 c6 21.Rad1 Qc7 22.Rd7 Qd7 23.Rd1 Qb7 24.Ba4 Qa6 25.Qf4 Qa5 26.Nf3 Be4 27.Qg5 Qa4 28.Rd8+– f6 29.Re8 Kf7 30.Re7 Ke7 31.Qg7 Ke8 32.h3 Bf3 (Better is 32...Qd1 33.Kh2 Qd6 34.Kh1 Qa3 35.Qf6 Qe7 36.Qh8 Qf8 37.Qe5 Qe7 38.Qb8 Qd8 39.Qa7 Bf3 40.gf3 Qf6+–). Dziel,Jaromir – Daconto,Ricardo, corr 3GMM–08, 1997.

12.Qb3 Rad8 13.Qb7+= Rd6 14.Qa6 (14.Nd4 Nd4 15.Bd4 Bb6 16.Bb6 ab6+=) 14...Nd4 (14...Nf4! 15.ef4 Qe2 16.Qe2 Re2+=) 15.Qa5+/– Ne2 16.Kh1 Be4 17.Nc3 Ndc3 18.Bc3 (18.dc3 Rb6 19.Bc1 Bf3 (19...Nc1?! 20.Rac1 Bf3 21.gf3+=) 20.gf3 A) 20...Nc1?! 21.Rac1 Qf6 22.Qd5+= (22.Qa7?? Qf3 23.Kg1 Rg6#); B) 20...Qf6–+) 18...Qd7 19.Ne1 (19.Bb4 Rh6 20.Ng5 Rh5–/+) 19...Rh6 (19...Rd5!? 20.Qa6 Qh3 21.Qe2 Rh5 22.Qh5 Qh5+=) 20.Be5?? (better is 20.Qc5=) 20…Qf5 (20...Qf5 21.Rb1 Rh2 (21...Qe5?? 22.Qe5 Rhe6 23.Qa1+–) 22.Bh2 Qa5–+) 0–1. Buczinski,Henryk (2175) – Rudenko,Vitaliy (2195), BI–2010–F–00003, 2011.

12.Bb5 Qc5 13.Nd4 Bd7 14.Bc6 Bc6 15.Nb3 Qb5 16.Qc2 Nf4–/+ 17.f3 Bb6 18.Nc3 Qg5 19.g3 Rad8 20.Ne4 Qg6–+ 21.Nbc5? Bc5 22.Qc5 Nh3 23.Kg2 Re4 24.Rad1 b6 25.Qc3 Ng5 26.d4 Re6 27.d5 Rd5 28.Rd5 Bd5 29.Qc7 Bc6 30.Qd8 Re8 31.Qd4 Qc2 32.Kg1 f6 33.e4 Nh3 34.Kh1 Qe2 35.Rg1 Qf3 36.Rg2 Qf1 (37.Qg1 Nf2 38.Rf2 Be4 39.Rf3 Bf3) 0–1. Pal – Zylla, corr ICCF TT–4–90 SF, 1995.

12.d4 Rad8 13.Qb3 Nf4 14.Bd1 Bd3–/+ 15.Nbd2 Bf1 16.Nf1=+ Nd5 17.Qb7 Rd6 18.Qb3 Rb8 19.Qc2 Rb2 20.Qb2 Bc3 21.Qc1 Ba1 22.Qa1 Na5 23.Ng3 Ne3 24.fe3+= Qe3 25.Kh1 g6 26.Ne2 Rf6 27.Neg1 Nc4 28.Qa2 Na3 29.Be2 Kg7 30.Ne5 Qc3 31.Qd5 Rf4 32.Nc6 Nc2 33.Qe5 Rf6 34.Bf3 Nb4 35.Nb4 Qb4 36.d5 h5 37.Qa1 a5 38.Bd1 Qc4 39.Bf3 a4 40.Bd1 Qd5 41.Ba4 c5 (41...c5 42.Nf3 Qd3=). Khayman,Daniel (1640) – Miranda,Marcus (1690), FICGS, 2007.

12.d4? Ne3!

11.a3 Bd6

12.Qb3 Nb6 13.Rc1 Qe6 14.Qe6 Be6 15.Bb5 Bd5 16.Nc3+= Bf3 17.gf3 Re6 18.Bc6 bc6 19.Ne4 Rc8 20.Bd4 Rg6 21.Kh1+/– Be7 22.Bc5 Bh4 23.d4 Re8 24.Rab1 h6 25.Rg1 Rg1 26.Kg1 g6 27.Kg2 f5 28.Nc3 Kf7 29.Ne2 Rb8 30.Nf4 Bf6 31.Nd3 Ke6 32.e4 a5 33.Kg3 g5 34.e5 Bd8 35.f4 Kd5 36.fg5+– hg5 37.h3 Ke4 38.Ne1 Kd5 39.Ng2 Rc8 40.Kf3 Ke6 41.Ne3 f4 42.Nc2 (42.Nf1!?+/–) ½–½. Sternik,Ryszard – Brzezinski,R, corr, 1997.

12.Qb3 Nb6 13.d4 =+.

12.Qb3 Qe6 13.Nc3 Nc3 14.Qc3 Qh6 15.h3 Rad8 16.Bc4 Be4 17.Ne1 Ne5 18.Ba2 Nd3 19.f3 Bf5 20.Nd3 Bd3–/+ 21.Rfc1 Qg6 22.Bb1 Be5 (22...Be5 23.Qb4 a5 24.Qb7 Rb8 25.Bd3 Qd3 (25...Rb7?! 26.Bg6 Bb2 27.Be4=+) 26.Qb8 Rb8 27.Be5 Qd2–/+) 0–1. Wagner,Richard (2055) – Brousek,Jiri (2095), CA.2003.0.00099, 2003.

12.Qb3 Qe6 13.d4 a6 14.Re1 (14.Nc3 Nc3 15.Qc3 Rad8=+) 14...Na5 (14...b5 15.Nc3 Nf4 16.d5=) 15.Qa4= b6 16.Nbd2 c6 17.Qd1 (17.Rac1 Re7=+) 17...Qh6 18.Bf1 Nf6 19.Bc3 Nb7 20.Nc4 (20.Qb3 Ng4 21.h3 Nf6 22.Qb6 Nd5+=) 20...Bc7 21.Nce5 Nd6 (21...Ng4 22.Ng4 Bg4 23.h3=) 22.Bd3 Bd3 23.Nd3 (23.Qd3 c5+=) 23...Nfe4 (23...Nde4 24.Qc2=+) 24.Qc2= Nc4 25.Red1 Rac8 26.Bb4= b5 27.a4 a5=+ 28.Bc5 Rb8 29.Ba7 Ra8 30.Bc5 Qh5 31.h3 Rab8 32.Rdb1 Qd5 33.Nb2 Nb2 34.Rb2 b4 35.Rb3 Bb6 36.Bb6 Rb6 37.Rc1 c5 38.dc5 Rc6 39.Rd3 Qc5 40.Qc5 Rc5 41.Ra1 0–1. marekt – GermanPaul, ChessWorld.net, 2004.

12.Qb3 Qe6 13.d4 Rad8 14.Nc3 Nc3 15.Qc3 =+.

12.Qb3 Qe6 13.Ng5 Qh6 14.f4 Nf4 15.Qf7 Kh8 16.Qe8 Re8 17.Nf7 Kg8 18.Nh6 gh6 19.Bc4 Be6 20.Rf4 Bf4 21.Be6 Re6 22.ef4 Re4 +–.

12.Qb3 Nf4 13.Bc4 Ng6 14.Bd5 Nce5 15.Ne5 (15.Bb7 Rab8 16.Ne5 Ne5–+ (16...Be5?! 17.Be5 Ne5 18.d4+=)) 15...Be5 16.Be5 (16.Bb7? Be6 17.Qc2 Bb2 18.Ba8 Ba1–+) 16...Qe5?? (better is 16...c6 17.Bd6 Qf6+/–) 17.Bf7+– Kh8 18.Be8 Re8 19.d4 Qd6 20.Nc3 Nh4 21.Kh1 Bh3 22.Rg1 (22.gh3?? Nf3 23.Kg2 Rf8–+) 22...Qf6 (22...Qc6 23.e4 Bg2 24.Rg2 Ng2 25.Kg2 Qg6 26.Kf1+–) 23.Qc2 (23.Qb7!? c6+–) 23...Bf5 24.e4 Bd7 25.Rad1 Qg6 26.f3 Qh6 27.Qd2 1–0. Melich,Jindrich (2070) – Nyvlt,Otto (2005), CZE–chT2c, 2006.

12.Qb3 Nf4 13.ef4 Qe2=+ 14.Nc3 Qd3 15.Rfe1 Bf4 16.Qb7 Bd7 17.Ne2 Bd6 18.Ne5?? Ne5 (18...Ne5 19.Be5 Be5–+; < 18...Be5 19.Be5 Ne5 20.Ng3–+) 0–1. Papapostolou,Christos – Purdy,Cecil John Seddon, Siegen ol (Men) qual–A, 1970.

12.d3 Ne3 (12...a5 13.d4+=) 13.fe3= Qe3 14.Rf2 Bc5 15.d4 Rad8 16.Qd2 Qe6 (better is 16...Nd4 17.Nd4 Qe5+=) 17.Bb5+/– (worse is 17.dc5 Rd2 18.Nbd2 Qd5=) 17...Re7 (17...Be4 18.Ng5 Qb3 19.Qc1 Nd4 20.Qc5 (20.Be8?? Ne2 21.Kh1 Qd1 22.Rf1 Ng3 23.hg3 Qh5 24.Nh3 Qh3) 20...Nb5 21.Nc3 Nc3 22.Qc3 (worse is 22.Bc3 Rd5 23.Qe3 Rg5 24.Qg5 Qc3–/+) 22...Qc3 23.Bc3=) 18.Bc6 (18.dc5?! Rd2 19.Nbd2 Qd5=) 18...bc6 (18...Qc6 19.Qa5 Bb1 20.Rb1+/–) 19.Qc3+– (19.dc5?! Rd2 20.Nbd2 Qd5=) 19...Bb6 20.Kf1?? (20.a4 a5+–) 20...Qg6?? (20...Bd4 21.Nd4 Bd3 22.Re2 Qe3–+ (22...Be2?! 23.Kg1 Qc4 24.Nd2 Qc3 25.Bc3–/+)) 21.Nbd2+/– Bc8 (21...Bg4 22.h3 Bf3 23.Nf3+– (23.Qf3?! Bd4 24.Bd4 Rd4+/–)) 22.Nc4+– Rde8 (22...f6 23.a4 Re4 24.a5 Bd4 25.Qb3+– (25.Nd4?! Red4 26.Kg1 Qd3+=)) 23.Nce5 Qh5 24.Nc6 Re3+/– 25.Qd2?? Qb5–+ 26.Kg1 Qc6 27.Ne5 Qe4 28.Raf1? Ba6 29.Rc1 f6 30.Nf3 Re2 31.Re2 Qe2 32.Qc3? Qb5 33.Re1 Re1 34.Qe1 Qe2 35.Qe2 Be2 36.Nd2 Kf7 37.Kf2 Bb5 38.Ke3 Ke6 39.g3 h5 40.Nf3 Kd5 41.Nh4 Ke6 42.Ke4?? Bc6–+ 43.Kd3? Be8 44.Ke4 c6 45.Ng2 g5 46.h4 Bg6 47.Kf3 a5 48.Ne3 Bd3 49.d5?? cd5 50.Bf6 Be4 (50...Be4 51.Ke2 Kf6–+; 50...Kf6?! 51.Nd5 Ke5 52.Nb6 gh4 53.gh4=) 0–1. Pfueller,Volker (1605) – Koerner,Helmut (1770), 7th Berlin–ch Seniors, 2011.

12.d4 Na5 13.Re1 c6 14.Nbd2 Qc7 15.Bf1 Qb6 16.Nh4 Qb2 17.Nf5 Ba3 18.Rb1 Qa2 19.e4 Bb4 20.ed5 Qd2 21.Qg4 g6 22.Red1 Qc2 23.Ne3 Qa4 24.dc6 bc6 25.d5 c5 26.d6 Rad8 27.Qg5 a6 28.Nd5 h6 29.Qf6 Qa2? (better is 29...Rf8+–) 30.Ne7 (30.Nb4?! cb4 31.d7 Rf8 32.Rb4 Qe6 33.Qe6 fe6+–) 30...Kh7 31.Rd5 Rf8 32.Bd3 Rg8 33.Qf7 Rg7 34.Qe6 Rf8 35.Ng6 Qf2 36.Kh1 Qf7 37.Ne5 Kg8 38.Nf7 Rgf7 39.Rf1 Bc3 40.Qg6 Rg7 41.Rf8 Kf8 42.Rf5 (42.Rf5 Kg8 43.Qe8 Kh7 44.Rf7) 1–0. Rooms,Trevor (2345) – Palm,Werner (2315), WS/MN/069 ICCF, 2011.

12.d4 Rad8 13.Nbd2 a6 14.Re1 Qf6 15.Bc4 Nb6 16.Ba2 Qg6 17.Nh4 Qh6 18.Nhf3 Bg6 19.Rc1 Rd7 20.e4 Bf4 21.d5 Ne5 22.Be5 Be5 23.Ne5 Re5 24.Nb3 Rde7 25.Nc5 Re8 26.g3 Bh5+= 27.f3 R5e7 28.Qb3 Rb8 29.f4 Bg4 30.e5 Qg6 31.Qb4 Ree8 32.e6 fe6 33.Ne6 Kh8 34.Bb1 Qf6 35.Nc7+– Re1 36.Re1 a5 37.Qe4 g6 38.Bd3 Rc8+/– 39.Ne8 Nd7?? (39...Qc3 40.Qe7 Qd4 41.Kg2 Qd5 42.Re4 Re8 43.Qe8 Kg7 44.Qe5 Qe5 45.Re5 Kf6+–) 1–0. Poschmann,Hans – Goins,David, IECC, 1999.

12.d4 Qe6 13.Nc3 Nc3 14.Bc3 Ne7 15.Bb4 Nd5 16.Bc4 c6 17.Bd6 ½–½. Bartsch,Andreas (2255) – Mantu,Eugen, WS/M/141 ICCF, 2008.

12.d4 Qe6 13.Nc3 Nc3 14.Bc3 Ne7 15.Bb4 Rad8 16.Bd6 Qd6 17.Qb3 Qb6 18.Qb6 ab6 19.Ne5 f6 20.Bc4 Kf8 21.Nf3 c6 22.a4 Ra8 23.Rfc1 Ra5= 24.Rc3 b5–+ 25.Bb3 ba4 26.Ra4 Ra4 27.Ba4 Ra8 (27...Ra8 28.Bb5 cb5–+) 0–1. Laine,Jari (1840) – Vorobev,Pavel (1700), FICGS, 2006.

12.d4 Qe6 13.Nbd2 Nb6 14.Nh4 Qh6 15.g3 Bh3 16.Re1 Rad8 17.Qc2 Ne7 18.e4 c6 19.Ndf3 Bc7 20.a4 a5 21.Bc3 Bg4 (21...Na8!?=) 22.Ba5+/– Qh5 23.Bd2 Ng6 24.h3! Nh4 (24...Bh3 25.Nh2 Combination) 25.hg4 Nf3 26.Bf3 Qg6 27.a5 Nc8 28.Be3 Ne7 29.Reb1 Rb8 30.Rb2 Qf6 31.Kg2 Qg6 32.Rab1 Ba5 33.Rb7 Rb7 34.Rb7 Qd6 35.Qa4 Qd8 36.d5! Bc7 (36...cd5 37.Rd7 Decoy) 37.dc6 Qc8 38.Be2 1–0. Degterev,Pavel (2275) – Daelemans,Hugo, WC–2012–P–00013, 2008.

12.d4 Qe6 13.Nbd2 Rad8 14.Rc1 Qg6 15.Nc4 Bh3 16.Ne1 Bf5 17.Qb3 Be4 18.f3 Bf5=+ 19.e4 Bf4 20.Rc2 Qh6 21.g3 Be3 22.Kh1 Nd4 23.Bd4 Bd4 24.Ng2 Bg6 25.Qb7 c5 26.Qa7= f5 27.Nd2 Ne3 28.Ne3 Qe3 29.Qa6 Kh8 30.Bb5 Rf8 31.Nc4 Qb3 32.Re2 fe4 33.Nd2 ef3 34.Re8 Qf7 35.Rd8 Rd8 36.Bc4 Qf8 37.Rf3 Be4!–+ 38.Kg2 Ba8 39.Qa8 Ra8 40.Rf8 Rf8 41.Nf3 Ra8 42.Nd4 cd4 43.Kf3 Ra3 44.Ke4 Ra1 45.Kd4 Rh1 46.h4 Rh3 47.Ke5 Rg3 48.Kf4 Ra3 49.Bd5 Ra4 50.Kg3 g5! 51.h5 Kg7 52.Bc6 Rh4 53.Bf3 Kh6 54.Bg4 Rh5 55.Bh5 Kh5 0–1. Hansen,Marco (2290) – Markus,Roland (2440), CiF, 2009.

12.d4 h6 13.Nc3 Nc3 14.Bc3 Ba3 15.d5 Nd8 16.Qb3 Bd6 17.Rfd1 a6 18.h3 Bh7 19.Nd2 f6 20.Nc4 Bf5 21.Rd4 Nf7 22.Qb7 Reb8 23.Nd6 Rb7 24.Nb7 Rb8 25.Ba6 Bc8 26.Bb4 Qe8 27.Nc5 Ba6 28.Na6 Ra8 29.Ra5 Ra7 30.Bc5 Rb7 31.Bb4 Ra7 32.Bc5 Rb7 33.Bb4 Ra7 ½–½. Gierth,Karlheinz (2185) – Krupa,Bartlomiej (2150), CP–2008–Q–00010, 2010.

12.Re1 a6 13.d4 Red8 14.g3 (14.Bd3 Be4=) 14...Rab8 15.Nbd2 Nf6 16.Nh4 Qd7 (16...Bh3 17.e4 Qd7 18.Nhf3+=) 17.Nf5 Qf5 18.Bf3 Qg6 19.Rc1 Be7 20.Bg2 Qg5 21.Nf3 Qg6 22.Qb3 Qf5 23.e4 Na5? (23...Ne4 24.g4 Qg6= (worse is 24...Qg4 25.Ne5 Ne5 26.Re4 Nf3 27.Qf3 Qf3 28.Bf3+–)) 24.ef5+– Nb3 25.Rc3 Na5? (better is 25...Nd4 26.Re7 Nd5 27.Nd4 Ne7 28.Rc7 Nd5+–) 26.Re7 Nd5 27.Re4 Nc3 28.Bc3 Nc4 29.d5! Na3 30.Rg4 g6 31.Ng5 Nb5 32.Bb2 gf5 33.Rh4+– Rd6 34.Nh7 Rbd8 35.Ng5 Kf8 36.Rh7 R8d7 37.h4 c6 38.Be5 Rg6 39.Bf3 cd5 40.Bh5 Rc6 41.Bf7 Nc7 42.Rg7 Rh6 43.Rg8 Ke7 44.Bg6 b5 45.Rg7 Kd8 46.Ne6 Kc8 47.Rg8 Kb7 48.Nc5 Kc6 49.Nd7 Kd7 50.Rg7 (50.Rg7 Ke6 51.f4+–) 1–0. Buczinski,Henryk (2130) – Husemann,Andreas (2045), SA–2011–0–00215, 2011.

12.Re1 a6 13.d4 Qe6 14.Nbd2 Qg6 (14...h6!?+=) 15.Nh4+= Qh6 16.g3 (16.Nf5?? Qh2 17.Kf1 Qh1) 16...Bh3 17.Bf3 Nf6 (17...Nb6 18.Qc2+=) 18.Qc2 (18.Nc4 g5 19.Ng2 g4+=) 18...Rad8 19.Rab1 g5 20.Nf5 Qg6 21.e4 Bf8 22.Ba1 (22.Bc3 b5+=) 22...Ba3 23.d5 Ne5? (better is 23...Bb4!?+=) 24.Be5 (24.Bg2 Bg2 25.Kg2 b5+/–) 24...Re5+/– 25.Qc3 Rde8 26.g4 (26.Qa3?! Bf5 27.Rb7 Be4+=) 26...Bd6 27.Nc4 Ng4 28.Nfd6 cd6 29.Bg4 (29.Ne5 Ne5 30.Bd1 g4=) 29...Bg4 30.Ne5 Re5 31.Rb7 Qf6 32.Rb8 Kg7 33.Re3 Bd7 (33...a5 34.Ra8+–) 34.Rb6 Bb5 35.Rf3 Qe7 (35...Qd8 36.Rb7 Bd7 37.Qd4+–) 36.Rf5 f6 (36...h6 37.Rd6! Qd6 38.Re5+–) 37.Re5 fe5? (37...Qe5 38.Qe5 de5 39.Rb7 Kf8 40.Rh7 a5+–) 38.Qc8 Bd7 39.Qc7 Kf8 (39...Kf7+–) 40.Rb7 Ke8 41.Rb8 Kf7 42.Rh8 Kf6 (42...Bf5 43.Qe7 Ke7 44.ef5 Kf6 45.Rh7 Kf5+–) 43.Rh7!! Qh7 44.Qd6 (44.Qd6 Be6 45.Qe6 (45.de6?! Qe4 46.e7 Kf7=) 45...Kg7 46.Qd7 Kg6 47.Qf5 Kg7 48.Qh7 Kh7 49.d6+–) 1–0. forsetinn (2325) – hahaha (2000), gameknot.com, 2014.

12.Re1 Rab8 13.d4 Qf6 14.Nbd2 Nb6 15.g3 Bg4 16.Qc2 Qg6 17.e4 Qh5 18.Bd1 Rbc8 19.Bc3 Ne7 20.a4 Rb8?? (20...c5!?=) 21.a5 (better is 21.e5!?+–) 21...Nd7+= 22.e5 Nd5 23.h3 Qh3 (23...Nc3? 24.hg4 Qg4 25.Qc3+–) 24.ed6 Bf5 25.Qb3 Nf4 26.Re8 Re8 27.Qf7 Kf7 28.Ng5 Kg8 29.Nh3 Nh3 30.Kg2 cd6 31.Nc4 Rc8 32.Nd6 Rc3 33.Nf5 Ng5 34.Rb1 Rc7 35.Nd6 Kf8 36.f4 Nf7 37.Nb7 Rc4 38.Nc5! Nc5 39.dc5 Nd8 40.Rb8 Ke7 41.Ra8 Nc6 42.Bf3 Rc5 43.Bc6 Rc6 44.Ra7 Kf6 45.a6 h5 46.Ra8 Kg6 47.a7 Rc2 48.Kf3 Ra2 49.f5! Kf7 50.f6! Ra4 51.fg7 Kg7 52.Ke3 ½–½. Kazimierski,Tomasz – Koolsbergen,Nico (1620), ZI–2009–0–00564, 2009.

12.Re1 Rad8 13.Nc3 Nc3 14.Bc3 Ne5 15.Ne5 Be5 16.Be5 Qe5 17.d4 Qa5 18.Bf3 c6 19.Qb3 Re7 20.Rec1 Be6 21.Qc3 Qc3 22.Rc3 Bd5 23.Bd5 Rd5 24.f3 f5 25.Rd1 Red7 26.Rc4 c5 27.Rb1 cd4 28.Rd4 Rd4 29.ed4 b6 30.Rc1 Kf8 31.Rc4 Ke7 32.Kf2 ½–½. Gasanov,Engels (1900) – Butsikin,Vitaly (2025), OP–2009–0–00839, 2009.

12.Re1 Rad8 13.d4 g5 14.e4 Be4=/+ 15.Nbd2 g4 16.Bc4+/= gf3 17.Re4+/– Qg5 18.Nf3 Qf5 19.Re8 Re8 20.Bd3 Qh5 21.g3 a6 22.Nh4 Qd1= 23.Rd1 Be7 24.Nf5+/= Bf6 25.Kf1 Rd8 26.Bc4 Nce7= 27.Nh6 Kf8 28.Ng4 Bg7 29.Bb3 c5 30.Ne5 Ng6 31.dc5+/– Ne3 32.fe3+– Rd1 33.Bd1 Ne5 34.Bd4 Nc4 35.a4 Bd4? 36.ed4 Ne3 37.Ke2 Nc4 38.Bc2+– 1–0. Miralles,Gilles (2300) – Roos,Louis (2375), St Maxime, 1983.

12.Nc3 Nc3–/+

13.dc3 Rad8 14.Qb3 Be4 15.c4 Ne5 16.Be5 Be5 17.Ne5 Qe5 18.Rad1 Qa5 19.g3 Bc6 20.Rd8 Rd8 21.Rd1 Rd1 22.Qd1 g6 23.Bf3 Bf3 24.Qf3 c6 25.Qe4 Qc5 26.a4 Qa5 27.Qe8 Kg7 28.Qb8 b6 29.Qd6 Qa4 30.Qe5 Kf8 31.Qb8 Ke7 32.Qc7 ½–½. Parr,David – Saverymuttu,Seth, Islington, 1972.

13.dc3 Rad8 14.Nd4 Be4 15.Bf3 Bf3 16.Qf3 Ne5 17.Qe2 c5 18.Nf3 (18.Nf5 Qe6 19.Nd6 Rd6 20.Rad1 Rd1 21.Rd1–/+) 18...c4 19.Ne5 Qe5 (19...Be5?! 20.Qc4 Rd2 21.Bc1=) 20.g3 Qe4 (20...Qe6 21.Rfd1–/+) 21.a4 (21.Rfd1–/+) 21...Be5 22.f3 Qd3 23.Kf2 Qe2 24.Ke2 Rd3 25.e4 Bc3 26.Bc3 Rc3 27.Rfc1 Rc1 28.Rc1 Rc8 29.e5 Kf8 30.Kd2 Ke7 31.Kc3 Ke6 32.f4 Rc7 33.Rd1 Kf5 34.Re1 h5 35.e6 fe6 36.Re5 Kg4 37.Rg5 Kf3 38.Rh5 Kg2 39.a5 b6 40.ab6 ab6 41.Re5 Kh2 42.Re6 Kg3 43.f5 b5 44.Rg6 Kf4 45.f6 gf6 46.Rf6 Ke4 47.Rb6 Rc5 48.Re6 Re5 49.Rd6 Rd5 50.Re6 Kf5 51.Re3 Re5 52.Rh3 Kg4 53.Rh8 Re3 54.Kd4 Rb3 55.Rf8 c3 56.Kd3 b4 57.Rf2 Kg3 58.Ra2 Rb1 59.Kc2 Rf1 60.Kd3 b3 (60...b3 61.Rg2 Kg2 62.Kc3 Rf3 63.Kb2 Kf1–+) 0–1. Franke,L (2120) – Svane,R (2345), St Pauli Open, 2011.

13.Bc3 Ba3 14.Qb3 Bb4 15.d4 Be6 16.Qb2 a5 17.Bb5 Bd5 18.Bc6 Bc6 19.Ne5 Bd5 20.Rab1 (20.Rfe1 Bc3 21.Qc3 a4–/+) 20...c5 21.dc5?? (better is 21.Bb4 cb4 22.Rfe1–/+) 21...Bc3–+ (21...Bc3 22.Qc3 Qe5–+) 0–1. cristero (2490) – flyingtiger, net–chess.com, 2013.

13.Bc3 Ba3 14.Qb3 Bb4 15.d4 (15.Ne5 a5 16.Nc6 bc6+=) 15...Be6 (15...Bc3 16.Qc3 a5 17.Bb5+=) 16.Qb2 (16.Bb4 Bb3 17.Be7 Re7+=) 16...Bd5–/+ 17.Nd2 a5 18.Bd3 Bc3 (18...a4 19.Bb4 Nb4 20.Bc4–/+) 19.Qc3 Nb4 20.e4 (better is 20.Bc4!?–/+) 20...Nd3–+ 21.Qd3 Be4 22.Ne4 (22.Qc3 Bc6 23.Ra5 Ra5 24.Qa5 b6–+) 22...Qe4 23.Qc3 c6 24.Rfe1 Qd5 25.Ra5?? (25.g3 Re1 26.Re1–+) 25...Re1 26.Qe1 Qa5 (26...Qa5 27.Qa5 Ra5–+) 0–1. Baumann,Walter (2050) – Grego,Luis Jos‚ Gonzaga (1935), ICCF FM/0860, 2009.

13.Bc3 Ba3 14.Nd4 Nd4–/+ 15.Bd4 Bc5 16.Bc5=+ Qc5 17.Qa4 Be4 18.Rfc1 Qd6 19.Bc4 Qg6–/+ 20.g3 Qf5 21.d3 Bc6 22.Qb3 Bf3 23.d4 Be4 24.f4 Red8 25.Qd1 Bc6 26.d5 Bd5–+ 27.Bd5 Rd5 28.Qf3 Qd7 29.Rc7 Qc7 30.Qd5 Rd8 31.Qb3 a6 32.Qa3 h6 33.Rc1 Qd7 34.Rb1 Qc6 35.Rc1 Qf3 36.Qc3 b5 37.Rf1 Qb7 38.Qa5 Rd6 39.Rc1 Qb6 40.Rc8 Kh7 41.Qc3 Rd1 42.Kf2 Qg6 43.Ra8 Qb1 44.Ra6 Rc1 45.Qe5?? Qc2 46.Kf3 Qd1 47.Ke4 Rc4 (47...Rc4 48.Qd4 Qc2 49.Ke5 Rd4 50.Kd4 Qc4 51.Ke5 b4–+) 0–1. Bigalke,Andre – Van Riesen,Klaus, Pinneberg–ch, 2003.

13.Bc3 Rad8 14.d4 a6 15.a4 Nb4=+ 16.a5 Nd5 17.Qb3 Qf6 18.Bb2 Qh6 19.Ba3= Ba3 20.Ra3 Bc8 21.Ne5 f6 22.Bc4 fe5+= 23.Bd5 Be6 24.Be6 Qe6 25.de5 Qb3 26.Rb3 Re5 27.Rb7 Rd7 28.Rc1 Rc5= 29.Rcb1 Ra5 30.h3 Rc5 31.Ra1 Rc6 32.Ra7 Rdd6 33.Ra4 Kf7 34.g4 g5 35.Ra5 h6 36.Ra8 Rf6 37.Ra2 Ke7 38.Kg2 Rb6 39.Kg3 Kd7 40.h4 gh4 41.Kg2 Rb4 42.R8a6 Rg4 43.Kh3 Rgg6 44.Rd2 Rd6 45.Rdd6 Rd6 46.Ra4 Rf6 47.f4 Ke6 48.Kh4 c5 49.Ra6 Ke7= 50.Ra7 Kd6 (50...Kd8 51.Ra4=) ½–½. Durka,Jan – Petrik,Karol, Tirnavia–B Trnava, 1979.

11.Qb3 Rad8

12.a3 Ba5 13.Qb7 Rd6 14.Qa6 Nd4 (14...Nf4! 15.ef4 Qe2 16.Qe2 Re2+=) 15.Qa5+/– Ne2 16.Kh1 Be4 17.Nc3 Ndc3 18.Bc3 (worse is 18.dc3 Rb8 19.Bc1 Bf3 20.gf3 A) 20...Nc1?! 21.Rac1 (21.Qa7 Rdb6 22.Rac1 Qf6–+) 21...Rdb6 A1) 22.Qa7? Qf6 23.h3 Qc6–+ (23...Qf3?! 24.Kh2 Rc8 25.Rg1–/+); A2) 22.Rg1=; B) 20...Qf6–/+) 18...Qd7 19.Ne1 (19.Bb4 Rh6 20.Ng5 Rh5–/+) 19...Rh6 (19...Rd5 20.Qa6 (20.Qa7 Rh5 21.Bf6 gf6–+) 20...Qh3 21.Qe2+=) 20.Qg5 (better is 20.Qc5!?=) 20...f6 21.Qc5 Qh3 (21...Qh3 22.Qc7 A) 22...Nc3 23.f3 (23.dc3?? Re5 24.Qc4 Kh8 25.Qc8 Qc8–+) 23...Nd5 24.gh3 Nc7 25.fe4+=; B) 22...Rh4+=) 0–1. Vlak,Jos J. C. M (2310) – Hamann,Henner (2285), WS/M/162 ICCF, 2008.

12.a3 Ba5 13.Qb7 Rd6 14.Nd4 Nd4 15.Bd4 Nb6 16.Bc5 Be4 17.Bd6 Qg5 18.Qe4 Re4 19.Bc7 Qe7 20.Rc1 g6 21.d4?? Re3–/+ 22.Bb6 Bb6 23.Rc8 Kg7 24.fe3 Qe3 ½–½. Junge,Wolfgang – Fritsch,Wolfgang, corr DDR–ch M641, 1980.

12.a3 Na5 13.Qa4 Bd7 14.Bb5 Bb5=+ 15.Qb5 a6 16.Qa4 b5 17.Qc2 Bd6 18.Nc3 Nf6 19.d3 c5 20.Ne4 Ne4–/+ 21.de4 Qc7 22.h3 Nc6 23.Rac1 c4 24.Qc3 f6 25.Qc2 Ne5 26.Rcd1 Nd3 27.Nd2 Nb2–+ 28.Qb2 c3 29.Qb3–/+ Kh8 30.Rc1? Ba3?? 31.Qa3=+ Rd2 32.Rc3 Qb7 33.Rfc1 b4 34.Qa4 Qe4 35.Rc8 Rdd8 36.Qa6 Qd5 37.Rd8+= Rd8 38.Qa1 b3 39.Qb2 h6 40.Rb1 Rb8 41.Kf1 Qd3 42.Ke1 Kh7 43.Rd1 Qe4 44.Qb1 Qg6 45.Qg6 Kg6 46.Rb1 Kf5 47.Kd2 Ke4 48.f3+/– Kd5 49.Kc3 Re8 50.e4 Ke5 51.Rb3 Kf4 52.Rb7 g5 53.Rh7 Kg3 54.Rh6 Kg2 55.Rf6 Kh3 56.Kd4 Kg3 57.e5 g4 58.fg4 Kg4 59.Kd5 Kg5 60.Kd6 Rd8 61.Ke7 Rd5?? 62.e6 Re5 63.Kf7 Kg4 64.e7 Kg5 65.Rf1 (65.Rf1 Kg4 66.e8Q Re8 67.Ke8+–; better is 65.Re6 Re6 66.Ke6 Kf4+–) 1–0. Cohen_Solal,Lennie (1800) – Bertrand,Quentin (1680), Nationale I (youth) rounds 4–11, 2005.

12.a3 Bd6 13.Nbd2 a6 14.Re1 Qf6 15.Qb3 Qh6 16.g3 Nb6 17.Bf1 Be6 18.Qc2 Ne7 19.Ne4 Bf5 20.Nd6 Bc2 0–1. Sawamura,Tetsushi (1875) – Deblauwe,Pauwel (1790), internet, 2002.

12.Nd4 Nd4–/+ 13.Bd4 c5 14.Bb2 a6 15.Bf3 Be6 16.Qc2 c4 17.Nc3 Nf6 18.Rfd1 Qd7 19.a3 Ba5 20.Ne4 Ne4=+ 21.Be4 h6 22.Bc3= Bc7 23.d3 Qe7 24.dc4 Bc4 25.Bf3 b5 26.Bc6 Bh2!–/+ 27.Kh2 Qc7 28.Kg1 Qc6 29.Ba5 Rc8 30.Rd4 Re6 31.Rad1 Rce8 32.Rg4 Rd6 33.Rd6 Qd6 34.Bb4 Qe6 35.Rd4 Qb6 36.Qd2 Qc7 37.Rd7 Qe5 38.Bc3 Qc5 39.Bb4 Qf5 40.Rd8 Rd8 41.Qd8 Kh7 42.Qd4 f6 43.e4 Qf4 44.Bd2 Qg4 45.f3 Qe6 46.Bb4 Qc6 47.Kf2 h5 48.Qc5 Qc5 49.Bc5 g5 50.Bd4 Kg6 51.Bc3 h4 52.Ke3 Kf7 53.Ba5 Ke7 54.Bb4 Kd7 55.Bc3 Ke7 56.Ba5 Bf1 57.Kf2 h3 58.gh3=+ Bh3 59.Ke3 g4 60.fg4 Bg4 61.Kf4 Bh3 0–1. Ljubarskij,Jurij (2305) – Dan,Efim (1960), Niedersachsen–ch Seniors, 2004.

11.Bb5 Red8 12.Bc6 bc6 13.Nd4 Bd7 14.Qc2 Rab8

15.Nc6 Bc6 16.Qc6 Bc5 17.Bc3 Nc3 18.Nc3 Rd2 19.Ne4 Rc2 20.Rac1 Rc1= 21.Rc1 Bb6 22.Rd1 Ba5 23.Nc5+= Qd6 24.Qd6 cd6 25.Nb3 Bc7 26.Kf1 Kf8 27.Rd5 Ke7 28.Ke2 a5 29.Kf3 a4 30.Nd4 White fights for the Initiative 30...Rb2 31.a3 g6 32.Rb5 Rb5 33.Nb5 Ba5 34.Ke4 Be1 35.f3 f5 36.Kd5 Bd2+= 37.e4 fe4 38.fe4 Bf4 39.g3 Be5 40.Kc4 h5 41.Kb4+/– h4 42.gh4 Bh2 43.Nd4 Bg3 44.Nf3 Ke6 45.Ka4 d5 46.ed5 Kd5 47.Kb5 Ke4 48.Nd2 Kf4 49.a4 Be1 50.Nb3+/– Kg4 51.Nd4 Kg3 52.Kc4 Kg4 53.Kd3 Kf4 54.Nc6 Bh4+= 55.a5 Bf2 56.a6 Bc5?? 57.Kc4+– Bb6 58.Ne7 Kg5 59.Kb5 Bd4 60.Nc8 Kf4 61.Nb6 (61.Nb6 Bb6 62.Kb6+–) 1–0. Fritz 6 – Crafty 19.01, 2004.

15.Nc3 f6 16.d3 Bd6 17.Rab1 Qe5 18.g3 c5 19.Nb3 Nb4 20.Qe2 Qe7

21.Nc1 Bh3 22.Rd1 Qe6 23.a3 Nc6=+ 24.Qc2 Ne5 25.Ne4 Bg4 26.Ne2 Nf3 27.Kg2=+ Qf5 28.Nf4? Bf4–+ 29.ef4 Qh5 30.h4 Nh4! 31.gh4 Bf3 32.Kf1 Bd1 33.Qd1 Qd1 34.Rd1 Rb2 35.Nc5 Rc2 36.Ne6 Rd6 37.f5 Rd5 38.f4 Rf5 39.d4 Rh5 40.d5 Rh4 41.Kg1 Rh3 42.Nd4 Rb2 43.Ne6 Rc3 44.a4 Rcc2 45.Ra1 h5 46.f5 h4 47.Nf4 a5 48.Re1 Kf7 49.Ng6 Rg2 50.Kh1 Rh2 51.Kg1 Rhg2 52.Kh1 Rge2 53.Re2 Re2 54.Nh4 Rf2 55.Kg1 Rf4 (55...Rf4 56.Ng2 Rf5–+) 0–1. Fritz 6 – Crafty 19.01, 2004.

21.Nc1 Bh3 22.Rd1 Qe6 23.a3 Nc6= 24.Qc2 Ne5 25.Ne4 Bg4 26.Ne2 Nf3 27.Kg2=+ Qf5 28.Nf4? Bf4–+ 29.ef4 Qh5 30.h4 Nh4! 31.gh4 Bf3 32.Kf1 Bd1 33.Qd1 Qd1 34.Rd1 Rb2 35.Nc5 Rc2 36.Ne6 Rd6 37.f5 Rd5 38.f4 Rf5 39.d4 Rh5 40.d5 Rh4 41.Kg1 Rh3 42.Nd4 Rb2 43.Ne6 Rc3 44.a4 Rcc2 45.Nd4 Rg2 46.Kh1 Rh2 47.Kg1 Rhg2 48.Kh1 Rh2 49.Kg1 Rbg2 50.Kf1 h5 51.Ne6 Rc2 52.Kg1–+ Rcg2 53.Kf1 h4 54.Rd3 Rb2 55.Kg1 h3 56.Rh3 Rh3 57.Nd4 Rd3 58.Ne2 Re2 59.Kf1 Ra2 60.Ke1 Rb3 61.d6 Rb1# 0–1. Fritz 6 – Crafty 19.01, 2004.

21.Nc1 Bh3 22.Rd1 Qe6 23.a3 Nc6 24.Qc2 Ne5 25.Ne4 Bg4 26.Ne2 Nf3 27.Kg2=+ Qf5 28.Nf4? Ng5?? 29.Qc4 Kh8 30.Ng5 fg5 31.e4 Qf8 32.f3=+ gf4 33.fg4= f3 34.Kf2 Qe7 35.e5 Rf8 36.d4= Rbe8 37.Kg1 cd4 38.ed6?? f2–+ 39.Kg2 Qe4 40.Kh3 Rf6 41.g5 Re5 42.g4 Qf3 43.Kh4 Rh6!! 44.gh6 g5 45.Kh5 Qh3# 0–1. Fritz 6 – Crafty 19.01, 2004.

21.Nd2 Bf5 22.e4 Bh3 23.Rfd1 Be5 24.Nc4 Bd4 25.a3= Nc6 26.Rdc1 Qe6 27.Qc2= Qg4 28.Nd5?? Qf3?? 29.Nf4= Bg4 30.Bd4+/– Nd4 31.Rb8 Rb8 32.Qa4 Bh3 33.Ne3+/– Be6 34.Ra1 Ne2 35.Ne2+/– Qe2 36.Qc6 Bh3 37.Qd5 Kh8 38.Rd1?? h6–+ 39.e5?? Rb2 40.Kh1 Qf2 41.Nc2 Rc2 42.Qd8 Kh7 43.Qh8 Kh8 44.ef6 Qh2# 0–1. Fritz 6 – Crafty 19.01, 2004.

21.Nd2 Bf5 22.e4 Bh3 23.Rfd1 Be5 24.Nc4 Bd4 25.a3= Nc6 26.Rdc1 Qe6 27.Qc2 Bg4 28.Nd5 Bf3 29.Nce3 Rb2 30.Rb2+= Bb2 31.Qb2 Ne5 32.Nf4 Qf7 33.Qc2 c6 34.Rb1 g5=+ 35.Ne2 Nd3 36.Nc3= Kh8 37.Qa4 Qd7 38.Qc4 Re8 39.Rb3 a5 40.Rb6 Qd4?? 41.Qf7+– Rg8 42.Rb7 Be4 43.Ne4 Qa1 44.Nf1 Qf1 45.Kf1 f5 46.Qh7# 1–0. Fritz 6 – Crafty 19.01, 2004.

11.d4 Rad8

12.Bb5 Bg4 13.Nbd2? Bd2–+ 14.Qd2 Bf3 15.gf3 Qg5 16.Kh1 Nf4! 17.ef4 Qb5 18.Rfe1 f6 (18...Qd5 19.Re8 Re8 20.Qc3–+) 19.Re4 Re4 (19...f5 20.Re3–+) 20.fe4–/+ Nd4! 21.Bd4 (21.Qd4 Rd4) 21...Qc4 (21...Qa4!?–/+) 22.Rc1=+ Qd4 23.Qd4 Rd4 24.Rc7 Re4 25.Rb7 Rf4 26.Kg2 Ra4–/+ 27.Rb2 Ra3 28.f3 Kf7 29.Kg3 g5 30.h4 h6 31.hg5 hg5 (32.Kf2 Ke6–/+) 0–1. Hromadka,K – Sauermann, corr ICCF WC, 1968.

12.Bc4 Bg4 13.Bd5 Rd5–/+ 14.h3 Bh5 15.Nc3 Bc3 16.Bc3=+ Ne5 17.e4?? Nf3–+ 18.Kh1 Qe4 19.g4 Bg4! 20.hg4 Qg4 (20...Qg4 21.Qf3 Rh5 22.Qh3 Rh3#) 0–1. Kirylo,Tadeusz – Bartnik,Tomasz, corr Poland ch, 1993.

12.Bd3 Ne3! 13.Qe2 Bd3 14.Qd3 Nf1 15.Nc3 Ne5 16.Ne5 Qe5! 17.Rf1 Qd4 18.Qc2 (18.Qd4 Rd4 19.a3 Bc5–+) 0–1. Pietrzak,Janusz – Twardon,Marian, Poland, 1982.

12.a3 Bd6

13.Nc3 Qe6 14.Nd5 Qd5 15.Nd2 Qe6 16.Rc1 Na5 17.Qa4 b6 18.Bc3 Qg6 19.Bb4 Bd7 20.Qd1 c5 21.Ba5 ba5 22.d5 Bf5 23.Bh5 Qh6 24.g3 Qf6 25.Nc4 Bc7 26.Bf3 h5 27.h4 g5 28.hg5 Qg5 29.d6 h4 30.Bc6 hg3 31.Qf3 Rd6 32.Nd6 Bd6 33.Be8 gf2 34.Kf2 Qh4 35.Ke2 Bg4 36.Bf7 Kf8 ½–½. Buczinski,Henryk (2200) – Daanen,Aard (2090), SA–2008–O–00015, 2008.

13.Nbd2 a6 14.Qb3 b5 15.a4 Ncb4 16.ab5 ab5 17.Bb5 c6 18.Bc4 Rb8 19.e4 Be4 20.Ne4 Qe4 21.Rae1 Qf5 22.Re8 Re8 23.Ba3 Rb8 24.Re1 g6 25.Qd1 Ra8 26.Bb2 Nb6 27.Bf1 N6d5 28.Ne5 Kg7 29.g3 Ra2 30.Re2 Bf8 31.Rd2 f6 32.Nd3 Nd3 33.Bd3 Qd7 34.Qb3 Ra7 35.Bf1 f5 36.Qc4 Rb7 37.Qc1 Be7 ½–½. Lifshitz,Samuel – Lindsalu,Indrek, CP–2003–F–00001, 2007.

13.Nbd2 a6 14.Re1 Qf6 15.Qb3= Qh6 16.g3 Nb6=+ 17.Bf1 Be6 18.Qc2 Ne7 19.Ne4 Bf5 20.Nd6?? Bc2–+ (20...Bc2 21.Ne8 Re8–+; 20...cd6 21.e4 Bh3 22.Bh3 Qh3 23.Qc7+/–; 20...Qd6 21.e4 Bg6 22.Ne5+=) 0–1. Sawamura,Tetsushi (1875) – Deblauwe,Pauwel (1790), IECC, 2002.

13.Nbd2 Nb6 14.Bb5 =.

13.Nbd2 Nf4 14.Bb5 Bd3 15.Bd3 Nd3 +=.

13.Nbd2 Nf4 14.Nc4 Ne2=+ 15.Qe2 Bg4 16.Nd6 Rd6=+ 17.Kh1 Qe4 18.h3 Rh6–+ 19.Kh2? Bh5 20.Rg1 g5 21.Qf1 f6 22.Nd2 Qf5 23.Rc1 Qd7 24.Qb5 Qc8 25.Nb3 a6+= 26.Qc5 Bf7 27.Nd2 Be6=+ 28.Rh1 Kg7 29.d5+/– Bh3 30.Kg1 Bg2 31.Rh6 Qg4 32.Rh4?? gh4–+ 33.Bf6?? Kf6 34.Qc3 Ne5 35.f3 Bf3 36.Kf1 Qg2 37.Ke1 Qe2# 0–1. Bennett,Hilton Petrie – Hawkes,Peter D, North Island–ch, 1996.

10.0–0 Be7

11.Qb3 Rb8 12.Nc3 Be6 13.Qc2 Ndb4 14.Qb1= Bf6 15.d4 Nd5 16.Bd3 g6 17.Nd5+= Bd5 18.e4 Be6 19.d5 Bg4? 20.Bf6+– Qf6 21.dc6 Bf3 22.gf3 Qf3 23.Qd1 Qh3 24.Qe2 bc6 25.Rab1 Rbd8 26.Rb3 Qh4 27.f3 Rd4 28.Qe3 Red8 29.Rfb1 c5 30.Rb8 Kg7 31.Rd8 Qd8 32.Be2 Rd2 33.Bc4 Rd1 34.Rd1+– Qd1 35.Kg2 Qc2 36.Qe2 Qc1 37.Bb3 Qg5 38.Kf1 Qc1 39.Qe1 Qf4 40.Kg2 Qg5 41.Kh1 Qf4 42.Qa1 Kh6 43.Qc3 g5 44.Bd1 g4 45.Kg2 gf3 46.Qf3 Qd2 47.Kh3 c4?? 48.Qf6# 1–0. Gorbylev,Aleksandr – Andersson,Oscar, Ch World (for the Deaf), 1996.

11.d4 a6 12.Nc3 =+.

11.d4 Ncb4 12.Na3 c6 13.Qd2 Nf6 14.Rfc1 Ne4 15.Qd1 Qa5 16.Nc4= Qd8 17.Nce5 Be6 18.a3 Nd5 19.Bd3 Nd6 20.Qc2+= f5 21.g3 Bf6 22.Rd1 Qe7 23.Re1 g6 24.Rab1 Qg7 25.Bc1 Rac8 26.a4 Rc7 27.Ba3= Be7 28.a5 Bc8 29.Bc5 a6 30.Bb6+– Bd8 31.Bc7 Bc7 32.Qd2 Nb5 33.Rec1 Qe7 34.Rb3 Bd7 35.Bc4 Be5 36.Ne5 Kg7 37.Qa2 Be6 38.Qa1 Nd6 39.Rcb1 Bc8 40.Bd5 cd5 41.Qa3 Qd8 42.Qc5 Re7 43.Rb6 Nb5 44.R6b5 ab5 45.Rb5 Be6 46.Qb4 Kh6 47.h4 Qc7 48.Rc5 Qd6 49.Qb6 Qb6 50.ab6 Re8? 51.Rc7 Ra8 52.Rb7 Ra1 53.Kg2 Rb1 54.Nd3 Bc8 55.Rb8 Ba6 56.Nc5 Bf1 57.Kf3 Rb2 58.b7 Be2 59.Kf4 Bd1 60.Rd8 Rf2 61.Ke5 Re2 62.b8Q Re3 63.Kd6 (63...Kh5 64.Kd5 Bf3 65.Kc4 Be2 66.Kb4+–; Better is 63.Kf6 Rf3+–) 1–0. Berlacki,Piotr – Kaiser,Hans, 6sen.WM–H Liebenzell, 1996.

11.d4 Ndb4 12.a3 Nc2 13.Ra2 Be6 14.Qc2+/– Ba2 15.Bc3?? Bd5 16.Nbd2 f5=+ 17.Rb1 Rb8 18.Nb3? Ba3 19.Na5 Na5 20.Ba5 Bd6 21.Bb5 Rf8 22.Bc4 Bc4 23.Qc4 Kh8 24.Bc3 Qe7 25.Re1 c6 26.e4 fe4 27.Nd2 Bh2! 28.Kh2 Qh4 29.Kg1 Qf2 (29...Qf2 30.Kh1 Qe1 31.Nf1 Rf1 32.Qf1 Qf1 33.Kh2 Rf8 34.Bb4 Rf2 35.Kh3 Qg2 36.Kh4 Rf4 37.Kh5 Qg4#) 0–1. Casa (1670) – Doda (2070), Freundschaftspartie, 5m + 0s, 2007.

11.d4 Bf6 12.Bb5 Nde7 13.Nc3 a6 14.Ba4 b5 15.Bc2 Bg4 16.Ne4 Nd5 17.Nf6 Nf6 18.h3 Bh5 19.Bd3 Qd5 20.Be2 Ne4 21.Qc2 Rac8 22.a3 Na5 23.Rac1 Bg6 24.Bd3 (24.Bd3 c5 25.dc5=; 24.Ne5 Re5 25.de5 Ng3=). guest429 – guest2147, ICC, 2002.

11.d4 Bf6 12.Nbd2 Qe7 13.Nc4 Nf4 14.Nce5 Qb4 15.ef4= Qb2 16.Bc4 Be5 17.Ne5 Ne5 18.de5 b5 19.Qb3 Qb3–/+ 20.Bb3 c5 21.Bd5 Rab8 22.f3 Red8 23.Be4 Be4–/+ 24.fe4 Rd4 25.Rae1 Re8 26.Re2 b4 27.Rb1 a5 28.Kf2 c4 (28...c4 29.h4 Rc8–/+) 0–1. Myslinski,M – Kuntschke,Leopold, corr Poland–ch sf, 1971.

11.d4 Bf6 12.Nbd2 Qe7 13.Re1 Rad8 14.Qb3 Qb4 15.Ba3 Qb3 16.ab3 a6 17.Bc4 Ndb4 18.Bb4 Nb4 19.Rac1 g5 20.h3 h5 21.e4 Bg6 (21...Bg6 22.e5 Be7=). Reg_UK – mrkt, ChessWorld.net, 2006.

11.d4 Bf6 12.Nbd2 Qe7 13.Re1 Rad8 14.Bb5 Qb4 15.Bc6+/– bc6 16.Qc1 Bd3+= 17.Ba3 Qb5 18.e4 Nf4 19.e5 Be7 20.Be7 Re7 21.Qa3 Re6 22.Nb3 Rg6= 23.g3 Qd5 24.Re3 Ne2 25.Kg2 Be4 26.Nbd2 Nf4 27.Kf1 Qb5 28.Kg1 Bf3 29.Nf3 a5 30.Rb3 Qd5 31.Rab1 h5 32.Rb8+= Rb8 33.Rb8 Kh7 34.Qb3 Qd7 35.Kf1 Nd5 36.Rb5?? Nb6 37.Ra5+– Qh3 38.Ke2 Qf5? 39.Qd3 Qd3 40.Kd3 Kh6 41.Nh4 Re6 42.Nf5 Kg6 43.Ne3 (43.Ne3 Kh7 44.f4+–) 1–0. Dupont,Gerhard – Porzig,Hermann, corr DDR–ch M781, 1985.

10.0–0 Nf6

11.a3 Ba5 12.Nc3 Ne5 13.d4 Nf3 14.Bf3 c6 15.Rc1 Rc8 16.Na4 Qd6 17.Nc5 Bc7 18.g3 b6 19.Nb7+/– Qe6 20.Bc6 Re7?? 21.d5+– Nd5 22.Bd5 Qd7 23.Bc6 Qe6 24.Qa4 Bb8 25.Rfd1 Qg6 26.Be4 Rce8 27.Bf5 Qf5 28.Nd6 Bd6 29.Rd6 h6 30.Qd4 (30.Qd4 f6 31.g4+–) 1–0. Dluhosch,Thomas – Nebe,Lutz, BdF, 1985.

11.Qb3 Be6 12.Bc4 Bc4 13.Qc4 Bd6 14.Ng5 Qe7=+ 15.d4 a6 16.Nd2 h6 17.Ngf3= Ne4 18.d5 Nd2 19.Nd2 Ne5 20.Qc3 Qh4 21.g3?? Qe7 22.f4+= f6 23.fe5+/– Be5 24.Qc2 Bg3? 25.hg3+– Qe3 26.Kg2 Rad8 27.Qg6 Qd2–+ 28.Rf2 Qd5?? 29.Kg1=+ Qg5 30.Qg5 hg5 31.Raf1 Re6 32.Kg2 Rde8 33.Bc1 Re2 34.Re2 Re2 35.Rf2 Rf2 36.Kf2 Kf7 37.Kf3 Ke6–/+ 38.g4 b5 39.Ke4 c5 40.Be3 c4 41.Bd4 g6 42.a3 f5–+ 43.gf5? gf5 44.Ke3 Kd5 45.Bc3 (45.Bc3 g4 46.Kf4–+; 45.Bf6 g4–+). TresHuevos – liencam2, Live Game Caissa's Web, 2005.

11.Bc4 Na5 12.Be2 Be6 13.Qc2 White gets strong initiative Bd5 14.Nc3 Be6 15.Ng5+= Bd7 16.a3+/– Bd6? 17.Nd5!!+– Be5 18.Be5 Bf5 19.Qf5 Qd5 20.d4 Nb3 21.Rab1 Nd2 22.Bf3 Qd7 23.Qd7 Nd7 24.Bb7 Rad8 25.Bc7 Nf1 26.Kf1 Rc8 27.Bc8 (27.Bc8 Rc8 28.Rb7+–) 1–0. Fritz 8 – EXchess 3.11, 2004.

11.Bc4 Na5 12.Be2 Be6 13.Nd4 Bd5 14.Nc3 Bc4 15.d3 Ba6 16.a3 Be7 17.Rc1 Rb8 18.Nf5 Bf8 19.Qa4 Nc6 20.Nb5 Rc8 21.Rb1 Bc5 22.Qh4+/– Bb5?? 23.Qg5+– Nh5 24.Nh6 Kf8 25.Qh5 Ne5 26.Be5 g6 27.Qf3 Qd7 28.Qf6 Re6 29.Qg7 Ke8 30.Qg8 Bf8 31.Bg7 (31.Bg7 Qe7 32.Rb5+–) 1–0. Fritz 8 – EXchess 3.11, 2004.

11.d4 a6 12.a3= Bd6 13.Nbd2 b5 14.Rc1 Nb8 15.Nh4 Bc8 16.Qc2 Bb7 17.Nf5 Nc6 18.Bf3 Na5 19.Bb7 Nb7 20.Qc6 Na5 21.Qf3 Bf8 22.Bc3 c6 23.Rfd1 Re6 24.e4+/– Nb7 25.Bb2 b4? 26.ab4+– Bb4 27.Nc4 Re4 28.d5 cd5 29.Nce3 Nd6? 30.Nd5 Nd5 31.Nd6 Qd6 32.Qe4 Rd8 33.Be5 Qe6 34.Qb4 Qe5 35.Qa5 Rb8 36.Rd5 (36.Rd5 Qf6 37.Rcd1+–) 1–0. Poesch,Norbert (2140) – John,Guenter (1845), DESC–Einladungsturnier, 2002.

10.0–0 Bf8

11.a3 a6 12.d3 =+.

11.a3 a6 12.d4 h6 13.Nbd2 Nb6 14.Rc1 Qd7 15.h3 Rad8 16.Nc4 Nc4 17.Bc4 Be4 18.Nd2 Bg6 19.Nb3 Be4 20.Nd2 ½–½. Baranov,Grigoriy (2290) – Yudasin,Leonid (2550), Chigorin mem, St Petersburg RUS, 1998.

11.a3 a6 12.d4 h6 13.Bd3 Qd7 14.Re1 Bd3 15.Qd3 Bd6 (15...Re6 16.Nc3 Rae8 17.e4+=) 16.Nbd2 (16.Nc3 Nce7=) 16...Na5 (16...f5 17.Qb3 Qf7 18.e4 (18.Qb7?? Na5 19.Qa8 Ra8–+) 18...fe4 19.Ne4=) 17.e4+= Nf4 18.Qc2 c5 (18...Re6 19.Kh1 Rg6 20.g3+=) 19.e5 Bf8 20.Qe4 (20.Re4 Ne6 21.dc5 Rac8=) 20...Nd5= 21.dc5 Bc5 22.Qh4 (22.Red1 f5 23.Qd3 Qe6=) 22...Rac8 (22...Re6 23.Rac1 Rc8 24.Qg4=) 23.Rad1 Bf8 24.Qg3 Rc6 25.Nh4 Nc4 (25...Rd8 26.h3=) 26.Nc4+= Rc4 27.Rd2 (27.Qf3 Rd8 28.Nf5 Qb5+/–) 27...Rec8 (27...Rd8 28.Nf3 Qc7 29.Nd4=) 28.h3 (28.Qf3 Rh4 29.Rd5 Qe6=) 28...Qe6= 29.Nf3 Bc5 ½–½. Wantoch_Rekowski,Jacek (2245) – Kolodziejski,Marcin (2065), 54. Championship Poland Semifinal, 2009.

11.a3 Qd7 12.d3 Bg6 13.Qd2 Nb6 14.Nc3 Rad8 15.Rfd1 a6 16.Nh4 Nc4 17.Qc1 White gets the initiative 17...Nb2 18.Qb2 b6 19.Ng6+= hg6 20.d4 b5 21.a4 b4 22.Na2 a5 23.Bb5 Qe6? 24.Rac1+– Rd6 25.d5! Qg4 26.Bc6 Red8 27.f3 Qg5 28.e4 Rf6 29.Qf2 Bd6 30.g3 Bf4 31.h4 Qg3 32.Qg3 Bg3 33.Kg2 Bh4 34.Bb5 Rfd6 35.f4 (35.f4 g5 36.fg5+/–; better is 35.Rc7 Bf6 36.f4+–) 1–0. Ostroverkhova,Elena – Chirita,Andra Marina, EU–ch U12 Girls, 2002.

11.a3 Qd7 12.d4 a6 13.Nbd2 h6 14.Rc1 Rad8 15.Nb3 (15.Re1 Bd6 16.Bf1 Bg6 17.e4 Nb6 18.d5 Ne5 19.Ne5=) 15...Nb6 (15...Qe6 16.Nc5 Bc5 17.Rc5 Rd6 18.Re1 b6 19.Rc1=) 16.Nc5 Bc5 17.Rc5 Qe6 (17...Nd5 18.Qa4 Be4 19.Rfc1=) 18.Nd2 (18.Ne5 Ne5 19.Re5=) 18...Qg6 (18...Nd5 19.Qc1=) 19.Bf3 Bd3 20.Re1 Bb5 21.Ba1 Qe6 22.Ne4 Qe7 23.Qc1 Na4 24.Rf5 Nb6 25.Rd1 Nc4 26.Nc5 N6a5 27.a4 Bd7 28.Nd7 Qd7 29.Qc2 b5 30.Rc5 Rb8 31.d5 Rb6 32.Bd4 Rd6 33.Qb1 Rb8 34.ab5 ab5 35.Qb4 c6 36.Bc3 Rc8 37.Rd4 cd5 38.Rc8 Qc8 39.Qb5 Nc6 40.Rd5 Rd5 41.Bd5 N6e5 42.Qb4 Nb6 43.Bb3 Ned7 44.Qd4 Nf6 45.e4 Qc7 46.h4 1–0. Kural,A Serhat (2140) – Sobry,Sebastien (2015), WC17/WS71 ICCF, 2009.

11.a3 Bg6 12.d4 a6 13.Nbd2 Nb6 14.Nc4 Nc4 15.Bc4 Bd6 16.Bc3 b5 17.Be2 Qe7 18.Qb3 Rad8 19.Rfc1 Be4=+ 20.Qd1? Ba3–+ 21.Nd2 Bc1 22.Qc1 Bd5 23.Ra6 Nb4 24.Ra7 Na2 25.Qc2 Nc3 26.Qc3 b4 27.Qc2 Rc8 28.Nb3 Qg5 29.Bf1–/+ Qg6 30.Qb2 c6 31.Nc5 Ra8 32.Ra8 Ra8 33.Qb4 Bg2! 34.f4 Bf1 35.Kf1 Qc2 36.Nb3 Qb2 (37.Qe7 Qb3–+) 0–1. Gorbylev,Aleksandr – Salov,Sergei (2270), Moscow RUS, 1995.

11.Nc3 a5 12.Qb3 Ndb4 13.d4 (13.Bc4 Qd7 14.e4 Be6+= (worse is 14...Be4 15.Ne4 Re4 16.Bf7 Qf7 17.Qf7 Kf7 18.Ng5 Kg6 19.Ne4+/–)) 13...a4+= 14.Qc4? (better is 14.Qd1!?+=) 14...a3–+ 15.Bc1 Be6 16.d5 Nd5 (16...Bd5?! 17.Nd5 Qd5 18.Rb1+=) 17.Nd5 (17.Rd1!? Qf6 18.Nd5 Bd5 19.Rd5 Qa1 20.Ng5–+) 17...Bd5–+ 18.Qc2 Nb4 19.Qc3? (better is 19.Qb1–+) 19...Na2 20.Qd4 (20.Qc2 Nb4 21.Qc3 a2–+) 20...Nc1 21.Rfc1 c6 22.Bc4 Ra4 23.Bd5 Rd4 24.Bf7 Kf7 25.Nd4 Qd5 26.Rd1 Rd8 27.Rdb1 b5 28.Ne2 b4 29.Nf4 Qb5 30.h3 g5 31.Ne2 Qe2 (31...Qe2 32.h4 b3–+) 0–1. Yeung,Chun Keung (1725) – Gasanov,Engels G, 12th AfroAsia Zonal Champs Prelim Group, 2009.

11.Nc3 a6 12.d3 Nb6 13.a3 Qd7 14.Qc2 Rad8 15.Ne4 h6 16.Rfd1 Qe7 17.Ng3 Bg6 18.Rab1 Nd7 19.Nd2 Nc5 20.Nb3 Rd5 21.Nc5 Rc5 22.Qd2 Rd8 23.Rbc1 Na5 24.Rc5 Qc5 25.d4 Nb3 26.dc5 Rd2 (26...Nd2 27.c6 Bc2 28.Rd2 Rd2 29.cb7+–) 27.Rd2 Nd2 28.c6 bc6 29.Ba6 Bc2 30.h3 g6 31.f3 Bg7 32.Bg7 (32.Bd4 Nb1=) 32...Kg7 33.Bb7 Ba4 (33...c5 34.Ba6=) 34.Kf2 Kf8 35.f4 Ke7 36.e4 ½–½. Wantoch_Rekowski,Jacek (2245) – Abramov,Sergey Pavlovich (2215), WS/M/147 ICCF, 2008.

11.Nc3 a6 12.d4 h6 13.Bd3 Bd3 14.Qd3 Qd7 15.Rfc1 Rad8 16.Nd5 Qd5 17.Ba3 Bd6 18.Rab1 b5 19.Bd6 cd6 20.a4 Rb8 21.Nd2 Rb6 22.Qc3 (22.ab5 ab5 23.Rb2 b4=) 22...b4+= 23.Qb3 Ne7 (23...Qb3 24.Nb3 Rc8 25.d5=) 24.Rc7 (24.Rc4 a5=) 24...Qb3= 25.Nb3 Rc6 26.Rc6 Nc6 27.Rc1 Rc8 28.Kf1 (28.Rc4 f5+=) 28...Kf8 (28...g6!?=) 29.Rc4+/– Ke8 30.e4 Kd7 31.d5 Ne5 32.Rb4 Rc3 33.a5 Kc7 34.h4 (34.h3 g6+/–) 34...g6 35.f3 h5 36.Kg1 Rc2 37.Ra4 Rb2 38.Nd4 Kd7 39.Kh2 Nd3 40.Ra1 Nf4 41.Kg3 (41.Rg1 f6+/–) 41...Ng2+= 42.Rc1 Rd2 43.Nc6 Rb2 44.Rc3 Ne1 45.Re3 Rb1 46.e5 de5 47.Ne5 Kd6 48.Nf7 Kd5 49.Re5 Kd4 50.Re6 Nd3 51.Ra6 Rg1 52.Kh2 Ra1 53.Ng5 Ke3 ½–½. Morley,Paul (2240) – Hamblin,David J, WS/M/127 ICCF, 2007.

11.d3 Qd7 12.Re1 Nb6 13.Qb3 Rad8 14.Ba3 Be6 15.Qb2=+ Na4 16.Qd2 Nc5 17.d4 Ne4 18.Qb2 Ba3 19.Qa3 Bd5 20.Nfd2 Qf5 21.Ne4 Qe4–/+ 22.Bf3 Qd4!? 23.Nc3 Qb4 24.Qb4 Nb4 25.Rab1 Bf3–/+ 26.gf3 Nd3 27.Red1 Nc5 28.Nb5 c6 29.Nd6 Re7 30.Ne4 Rd1 31.Rd1 Rd7 32.Rd7 Nd7 33.Kf1 Kf8 34.Ke2 Ke7 35.f4 f6 36.Kd3 b6 37.Kc4 Ke6 38.Ng3 a5 39.f5 Kd6 40.Kd4 b5 41.Ne4 Ke7 42.f4 g6 43.Ng3 c5 44.Kd5 b4 45.fg6 hg6 46.Ne2 f5 47.Nc1 a4 48.Nd3 Kd8 49.Nb2 a3 50.Nc4 Kc7 51.h4 b3–+ 52.Na3 ba2 53.Nc2 Kb6 54.Kc4 Kc6 55.Kb3 Kd5 56.Ka2 Ke4 57.Kb3 Kd3 58.Na3? Ke3 59.Kc4 Kf4 60.Kd5 Kg4 61.Kd6 Nf6 62.Kc5 Kh4 63.Kd4 Kg3 64.Nc4 Ng4 65.Kd5 f4 66.Ke4 Ne3 67.Ne5 g5 68.Nd3 Ng2 69.Kf5 g4 70.Ne5 Nh4 71.Ke4 f3 72.Nd3 (72.Nc4–+) 0–1. Hawellek,Jeronimo – Berndt,Stephan (2290), GER–ch int U20, 1993.

10.a3 Bd6

11.0–0 Ne5 12.d3 Ng4 13.Qc2 Qe7+= (13...c5 14.h3 (14.Rc1 Qe7 15.e4 Nf4 16.Bf1 Bd7+=) 14...Ngf6 15.Re1 Bg6 16.e4 Nf4=; 13...c6 14.h3 Ngf6 15.Re1 Bc7 16.e4 Ba5=) 14.e4 (14.Kh1 c5 15.h3 Nh6 16.Nc3 Nc3=; 14.Qd2 Nf4 15.Nc3 Ne3 16.fe3 Qe3+=) 14...Nf4 15.Nc3 (15.h3 Nh6 16.Bd1 Bg6=) 15...Be6 (15...c6 16.h3 Ne2=) 16.d4 (16.Nb5 Ne2=) 16...Bf5 (16...Ne2+=) 17.Bc4 ½–½. Sternik,Ryszard – Hannesson,G, corr EU–M–GT–252, 1988.

11.0–0 Qe7 12.d4 h6 (12...a6 13.Nbd2+=) 13.Nbd2 Nb6 14.Rc1 (14.Bb5!?=) 14...Ba3+= 15.Ba3 Qa3 16.Nb3 Qa4 17.Nfd2 a5 18.Bf3 Qb4 19.Nc5 a4 20.Nb7 Ne7 21.Nc5 Ra7 22.Nde4 a3 23.Rb1 Qa5 24.Nb3 Qa4 25.Nec5 Qb4 26.e4 a2 27.Ra1 Bg6 28.Nd3 Qc4 ½–½. Buczinski,Henryk (2195) – Sanner,Zdzislaw (2185), SM–2011–O–00181, 2011.

11.Qb3 Nb6 12.d3 Qd7 13.0–0 Rad8 14.Nbd2 Qe6 (14...Be6 15.Qc2 Bd5 16.e4 Be6=) 15.Qe6 Be6 (15...Re6 16.Rab1 Be7=) 16.Rfc1 (16.Ne4 Na4=) 16...Na4 17.Bc3 Bd5 18.d4 Nc3 19.Rc3 Na5 20.Bd3 c6 21.Rb1 g6 22.g4 (22.e4 Ba2 23.Rb2 Be6=) 22...f6 23.h4 b6 (23...Kg7 24.Kg2=) 24.g5 (24.e4 Be6 25.g5 Bf4+=) 24...f5 25.Kf1 c5 26.h5 Re7 (26...Kf7 27.dc5 bc5 28.Rb5=) 27.dc5 Bc5 28.Nh4 Kf7 29.Rd1 Kg7 30.Ndf3 Nc6 31.Ke2 Be4 32.Rd2 Rde8 33.Bb5 f4 34.h6 Kf8 35.ef4 Rf7 36.Ng2+= Rf5 37.Kf1 Bb4 38.ab4 Rb5 39.Rd7 Re7= 40.Rd6 Bf3 41.Rf3 Rb4 42.Nh4 Rc4 43.f5 gf5 44.Rf5 Kg8= 45.Nf3 Re8 46.g6+/– (46.g6 Rc8 47.Ng5 Rc1 48.Kg2+–) 1–0. Riepe,Bernhard – Berger,Fred, Telechess, 2004.

10.a3 Be7

11.0–0 Qd7 12.d4 Qe6 13.Nbd2 Rad8 14.Re1 Bg6 (14...Qg6 15.Rc1=) 15.Rc1= Bf6 16.Nb3 Be7 17.Nfd2 Bf8 18.Bf1 Qf6 (18...f5 19.Bd3+=) 19.g3+= Nb6 20.e4 h6 21.f4 Bh7 (21...Nd4? A) 22.Bd4?! Rd4 23.f5 A1) worse is 23...Ba3 24.fg6 (24.Rc7?! Bh7 25.Nd4 Qd4 26.Kh1 Qe5 27.Rb7 Bf5+=) 24...Bc1 25.gf7 (25.Qc1?! Rd7=) 25...Kf7 26.Qc1+–; A2) 23...Bh7 24.Nd4 Qd4 25.Kg2 c6=; B) 22.e5 Qe6 23.Nd4+–) 22.Qf3 a5 23.Qf2 a4 (23...h5 24.Nc4 Nc4 25.Bc4+–) 24.Nc5 Na5 (24...Nd4?? 25.e5 Bc5 26.ef6 (26.Rc5?! Qe7 27.Bd4 Rd4 28.Qd4 Rd8+–) 26...Ne2 27.Re2 Bf2 28.Rf2+–) 25.f5 Ra8 26.Nf3 Qe7 27.Qc2 c6 28.Na4 Na4 29.Qa4 b5 30.Qc2 Qa7 31.Qf2 Qb7 32.g4 Be7 33.Rc2 Red8 34.h4 White prepares g5 34...Kh8 35.g5 f6 36.Qe3 Nc4 37.Bc4 bc4 38.Ree2 Rab8 39.gh6 Bf8 40.Rc4 Rd7 41.Qf4 White intends e5 41...Ra8 42.e5 Rd5 43.hg7 Bg7 44.h5 Rg8 45.Kf2 Bf8 46.Nh4 Rg5 47.Bc1 (47.Bc1 Qb5 48.Rec2 Rh5 49.Qg4 Rh4 50.Qh4+–) 1–0. deepthough (2215) – hanzelpeter (2245), gameknot.com, 2015.

11.0–0 Bf6 12.d4 a6 13.Bd3 Bd3 14.Qd3 Qd7 15.Nbd2 Rad8 16.Rab1 Be7 17.e4 Nf4 18.Qe3 Qg4 19.g3 Nh3 20.Kg2 Bd6 21.Kh1 h6 22.Qc3 Re4 23.d5 Ne5 24.Nd4 Qg6 25.f3 Rd4 26.Qd4 Nd3 27.Ne4 Nb2 28.Rb2 b6 29.Nd6 Qd6 30.f4 g5 31.Rd2 g4 32.Qe5 Qe5 33.fe5 Ng5 34.d6 c5 35.Rd5 Ne6 36.Kg2 b5 37.Kf2 h5 38.Ke3 Kg7 39.Rdd1 Ng5 40.a4 Rd7 41.Rc1 Ne6 42.Ke4 b4 43.Kd5 Rb7 44.Kc6 Rb8 45.Rf2 1–0. aleary (2105) – terrier (2090), gameknot.com, 2012.

10.Nc3 Nc3

11.dc3 Bd6 12.0–0 Qf6 13.Qb3 Be4 14.c4 Qh6 15.h3 Rad8 16.Nd4 Nd4–/+ 17.Bd4 c5 18.Bb2 Qg6 19.f3 Bc2 (19...Bc2 20.Qc3 Be5 21.Qe5 Re5 22.Be5 Qe6–+) 0–1. Drefke,A – Merten,Rainer, corr SOK–89–31, 1989.

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